diff -Nur linux-2.6.29.1.orig/crypto/Kconfig linux-2.6.29.1/crypto/Kconfig
--- linux-2.6.29.1.orig/crypto/Kconfig	2009-04-02 22:55:27.000000000 +0200
+++ linux-2.6.29.1/crypto/Kconfig	2009-04-20 20:01:21.396548617 +0200
@@ -737,3 +737,5 @@
 source "drivers/crypto/Kconfig"
 
 endif	# if CRYPTO
+
+source "crypto/ocf/Kconfig"
diff -Nur linux-2.6.29.1.orig/crypto/Makefile linux-2.6.29.1/crypto/Makefile
--- linux-2.6.29.1.orig/crypto/Makefile	2009-04-02 22:55:27.000000000 +0200
+++ linux-2.6.29.1/crypto/Makefile	2009-04-20 20:01:21.396548617 +0200
@@ -79,6 +79,8 @@
 obj-$(CONFIG_CRYPTO_ANSI_CPRNG) += ansi_cprng.o
 obj-$(CONFIG_CRYPTO_TEST) += tcrypt.o
 
+obj-$(CONFIG_OCF_OCF) += ocf/
+
 #
 # generic algorithms and the async_tx api
 #
diff -Nur linux-2.6.29.1.orig/crypto/ocf/Config.in linux-2.6.29.1/crypto/ocf/Config.in
--- linux-2.6.29.1.orig/crypto/ocf/Config.in	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/Config.in	2009-04-20 20:01:21.400550244 +0200
@@ -0,0 +1,34 @@
+#############################################################################
+
+mainmenu_option next_comment
+comment 'OCF Configuration'
+tristate 'OCF (Open Cryptograhic Framework)' CONFIG_OCF_OCF
+dep_mbool '  enable fips RNG checks (fips check on RNG data before use)' \
+				CONFIG_OCF_FIPS $CONFIG_OCF_OCF
+dep_mbool '  enable harvesting entropy for /dev/random' \
+				CONFIG_OCF_RANDOMHARVEST $CONFIG_OCF_OCF
+dep_tristate '  cryptodev (user space support)' \
+				CONFIG_OCF_CRYPTODEV $CONFIG_OCF_OCF
+dep_tristate '  cryptosoft (software crypto engine)' \
+				CONFIG_OCF_CRYPTOSOFT $CONFIG_OCF_OCF
+dep_tristate '  safenet (HW crypto engine)' \
+				CONFIG_OCF_SAFE $CONFIG_OCF_OCF
+dep_tristate '  IXP4xx (HW crypto engine)' \
+				CONFIG_OCF_IXP4XX $CONFIG_OCF_OCF
+dep_mbool    '  Enable IXP4xx HW to perform SHA1 and MD5 hashing (very slow)' \
+				CONFIG_OCF_IXP4XX_SHA1_MD5 $CONFIG_OCF_IXP4XX
+dep_tristate '  hifn (HW crypto engine)' \
+				CONFIG_OCF_HIFN $CONFIG_OCF_OCF
+dep_tristate '  talitos (HW crypto engine)' \
+				CONFIG_OCF_TALITOS $CONFIG_OCF_OCF
+dep_tristate '  pasemi (HW crypto engine)' \
+				CONFIG_OCF_PASEMI $CONFIG_OCF_OCF
+dep_tristate '  ep80579 (HW crypto engine)' \
+				CONFIG_OCF_EP80579 $CONFIG_OCF_OCF
+dep_tristate '  ocfnull (does no crypto)' \
+				CONFIG_OCF_OCFNULL $CONFIG_OCF_OCF
+dep_tristate '  ocf-bench (HW crypto in-kernel benchmark)' \
+				CONFIG_OCF_BENCH $CONFIG_OCF_OCF
+endmenu
+
+#############################################################################
diff -Nur linux-2.6.29.1.orig/crypto/ocf/Kconfig linux-2.6.29.1/crypto/ocf/Kconfig
--- linux-2.6.29.1.orig/crypto/ocf/Kconfig	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/Kconfig	2009-04-20 20:01:21.548558198 +0200
@@ -0,0 +1,101 @@
+menu "OCF Configuration"
+
+config OCF_OCF
+	tristate "OCF (Open Cryptograhic Framework)"
+	help
+	  A linux port of the OpenBSD/FreeBSD crypto framework.
+
+config OCF_RANDOMHARVEST
+	bool "crypto random --- harvest entropy for /dev/random"
+	depends on OCF_OCF
+	help
+	  Includes code to harvest random numbers from devices that support it.
+
+config OCF_FIPS
+	bool "enable fips RNG checks"
+	depends on OCF_OCF && OCF_RANDOMHARVEST
+	help
+	  Run all RNG provided data through a fips check before
+	  adding it /dev/random's entropy pool.
+
+config OCF_CRYPTODEV
+	tristate "cryptodev (user space support)"
+	depends on OCF_OCF
+	help
+	  The user space API to access crypto hardware.
+
+config OCF_CRYPTOSOFT
+	tristate "cryptosoft (software crypto engine)"
+	depends on OCF_OCF
+	help
+	  A software driver for the OCF framework that uses
+	  the kernel CryptoAPI.
+
+config OCF_SAFE
+	tristate "safenet (HW crypto engine)"
+	depends on OCF_OCF
+	help
+	  A driver for a number of the safenet Excel crypto accelerators.
+	  Currently tested and working on the 1141 and 1741.
+
+config OCF_IXP4XX
+	tristate "IXP4xx (HW crypto engine)"
+	depends on OCF_OCF
+	help
+	  XScale IXP4xx crypto accelerator driver.  Requires the
+	  Intel Access library.
+
+config OCF_IXP4XX_SHA1_MD5
+	bool "IXP4xx SHA1 and MD5 Hashing"
+	depends on OCF_IXP4XX
+	help
+	  Allows the IXP4xx crypto accelerator to perform SHA1 and MD5 hashing.
+	  Note: this is MUCH slower than using cryptosoft (software crypto engine).
+
+config OCF_HIFN
+	tristate "hifn (HW crypto engine)"
+	depends on OCF_OCF
+	help
+	  OCF driver for various HIFN based crypto accelerators.
+	  (7951, 7955, 7956, 7751, 7811)
+
+config OCF_HIFNHIPP
+	tristate "Hifn HIPP (HW packet crypto engine)"
+	depends on OCF_OCF
+	help
+	  OCF driver for various HIFN (HIPP) based crypto accelerators
+	  (7855)
+
+config OCF_TALITOS
+	tristate "talitos (HW crypto engine)"
+	depends on OCF_OCF
+	help
+	  OCF driver for Freescale's security engine (SEC/talitos).
+
+config OCF_PASEMI
+	tristate "pasemi (HW crypto engine)"
+	depends on OCF_OCF && PPC_PASEMI
+	help
+	  OCF driver for the PA Semi PWRficient DMA Engine
+
+config OCF_EP80579
+	tristate "ep80579 (HW crypto engine)"
+	depends on OCF_OCF
+	help
+	  OCF driver for the Intel EP80579 Integrated Processor Product Line.
+
+config OCF_OCFNULL
+	tristate "ocfnull (fake crypto engine)"
+	depends on OCF_OCF
+	help
+	  OCF driver for measuring ipsec overheads (does no crypto)
+
+config OCF_BENCH
+	tristate "ocf-bench (HW crypto in-kernel benchmark)"
+	depends on OCF_OCF
+	help
+	  A very simple encryption test for the in-kernel interface
+	  of OCF.  Also includes code to benchmark the IXP Access library
+	  for comparison.
+
+endmenu
diff -Nur linux-2.6.29.1.orig/crypto/ocf/Makefile linux-2.6.29.1/crypto/ocf/Makefile
--- linux-2.6.29.1.orig/crypto/ocf/Makefile	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/Makefile	2009-04-20 20:01:21.548558198 +0200
@@ -0,0 +1,121 @@
+# for SGlinux builds
+-include $(ROOTDIR)/modules/.config
+
+OCF_OBJS = crypto.o criov.o
+
+ifdef CONFIG_OCF_RANDOMHARVEST
+	OCF_OBJS += random.o
+endif
+
+ifdef CONFIG_OCF_FIPS
+	OCF_OBJS += rndtest.o
+endif
+
+# Add in autoconf.h to get #defines for CONFIG_xxx
+AUTOCONF_H=$(ROOTDIR)/modules/autoconf.h
+ifeq ($(AUTOCONF_H), $(wildcard $(AUTOCONF_H)))
+	EXTRA_CFLAGS += -include $(AUTOCONF_H)
+	export EXTRA_CFLAGS
+endif
+
+ifndef obj
+	obj ?= .
+	_obj = subdir
+	mod-subdirs := safe hifn ixp4xx talitos ocfnull
+	export-objs += crypto.o criov.o random.o
+	list-multi += ocf.o
+	_slash :=
+else
+	_obj = obj
+	_slash := /
+endif
+
+EXTRA_CFLAGS += -I$(obj)/.
+
+obj-$(CONFIG_OCF_OCF)         += ocf.o
+obj-$(CONFIG_OCF_CRYPTODEV)   += cryptodev.o
+obj-$(CONFIG_OCF_CRYPTOSOFT)  += cryptosoft.o
+obj-$(CONFIG_OCF_BENCH)       += ocf-bench.o
+
+$(_obj)-$(CONFIG_OCF_SAFE)    += safe$(_slash)
+$(_obj)-$(CONFIG_OCF_HIFN)    += hifn$(_slash)
+$(_obj)-$(CONFIG_OCF_IXP4XX)  += ixp4xx$(_slash)
+$(_obj)-$(CONFIG_OCF_TALITOS) += talitos$(_slash)
+$(_obj)-$(CONFIG_OCF_PASEMI)  += pasemi$(_slash)
+$(_obj)-$(CONFIG_OCF_EP80579) += ep80579$(_slash)
+$(_obj)-$(CONFIG_OCF_OCFNULL) += ocfnull$(_slash)
+
+ocf-objs := $(OCF_OBJS)
+
+$(list-multi) dummy1: $(ocf-objs)
+	$(LD) -r -o $@ $(ocf-objs)
+
+.PHONY:
+clean:
+	rm -f *.o *.ko .*.o.flags .*.ko.cmd .*.o.cmd .*.mod.o.cmd *.mod.c
+	rm -f */*.o */*.ko */.*.o.cmd */.*.ko.cmd */.*.mod.o.cmd */*.mod.c */.*.o.flags
+
+ifdef TOPDIR
+-include $(TOPDIR)/Rules.make
+endif
+
+#
+# release gen targets
+#
+
+.PHONY: patch
+patch:
+	REL=`date +%Y%m%d`; \
+		patch=ocf-linux-$$REL.patch; \
+		patch24=ocf-linux-24-$$REL.patch; \
+		patch26=ocf-linux-26-$$REL.patch; \
+		( \
+			find . -name Makefile; \
+			find . -name Config.in; \
+			find . -name Kconfig; \
+			find . -name README; \
+			find . -name '*.[ch]' | grep -v '.mod.c'; \
+		) | while read t; do \
+			diff -Nau /dev/null $$t | sed 's?^+++ \./?+++ linux/crypto/ocf/?'; \
+		done > $$patch; \
+		cat patches/linux-2.4.35-ocf.patch $$patch > $$patch24; \
+		cat patches/linux-2.6.26-ocf.patch $$patch > $$patch26
+
+.PHONY: tarball
+tarball:
+	REL=`date +%Y%m%d`; RELDIR=/tmp/ocf-linux-$$REL; \
+		CURDIR=`pwd`; \
+		rm -rf /tmp/ocf-linux-$$REL*; \
+		mkdir -p $$RELDIR/tools; \
+		cp README* $$RELDIR; \
+		cp patches/openss*.patch $$RELDIR; \
+		cp patches/crypto-tools.patch $$RELDIR; \
+		cp tools/[!C]* $$RELDIR/tools; \
+		cd ..; \
+		tar cvf $$RELDIR/ocf-linux.tar \
+					--exclude=CVS \
+					--exclude=.* \
+					--exclude=*.o \
+					--exclude=*.ko \
+					--exclude=*.mod.* \
+					--exclude=README* \
+					--exclude=ocf-*.patch \
+					--exclude=ocf/patches/openss*.patch \
+					--exclude=ocf/patches/crypto-tools.patch \
+					--exclude=ocf/tools \
+					ocf; \
+		gzip -9 $$RELDIR/ocf-linux.tar; \
+		cd /tmp; \
+		tar cvf ocf-linux-$$REL.tar ocf-linux-$$REL; \
+		gzip -9 ocf-linux-$$REL.tar; \
+		cd $$CURDIR/../../user; \
+		rm -rf /tmp/crypto-tools-$$REL*; \
+		tar cvf /tmp/crypto-tools-$$REL.tar \
+					--exclude=CVS \
+					--exclude=.* \
+					--exclude=*.o \
+					--exclude=cryptotest \
+					--exclude=cryptokeytest \
+					crypto-tools; \
+		gzip -9 /tmp/crypto-tools-$$REL.tar
+
diff -Nur linux-2.6.29.1.orig/crypto/ocf/README linux-2.6.29.1/crypto/ocf/README
--- linux-2.6.29.1.orig/crypto/ocf/README	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/README	2009-04-20 20:01:21.584560546 +0200
@@ -0,0 +1,167 @@
+README - ocf-linux-20071215
+---------------------------
+
+This README provides instructions for getting ocf-linux compiled and
+operating in a generic linux environment.  For other information you
+might like to visit the home page for this project:
+
+    http://ocf-linux.sourceforge.net/
+
+Adding OCF to linux
+-------------------
+
+    Not much in this file for now,  just some notes.  I usually build
+    the ocf support as modules but it can be built into the kernel as
+    well.  To use it:
+
+    * mknod /dev/crypto c 10 70
+
+    * to add OCF to your kernel source,  you have two options.  Apply
+      the kernel specific patch:
+
+          cd linux-2.4*; gunzip < ocf-linux-24-XXXXXXXX.patch.gz | patch -p1
+          cd linux-2.6*; gunzip < ocf-linux-26-XXXXXXXX.patch.gz | patch -p1
+    
+      if you do one of the above,  then you can proceed to the next step,
+      or you can do the above process by hand with using the patches against
+      linux-2.4.35 and 2.6.23 to include the ocf code under crypto/ocf.
+      Here's how to add it:
+
+      for 2.4.35 (and later)
+
+          cd linux-2.4.35/crypto
+          tar xvzf ocf-linux.tar.gz
+          cd ..
+          patch -p1 < crypto/ocf/patches/linux-2.4.35-ocf.patch
+
+      for 2.6.23 (and later),  find the kernel patch specific (or nearest)
+      to your kernel versions and then:
+
+          cd linux-2.6.NN/crypto
+          tar xvzf ocf-linux.tar.gz
+          cd ..
+          patch -p1 < crypto/ocf/patches/linux-2.6.NN-ocf.patch
+
+      It should be easy to take this patch and apply it to other more
+      recent versions of the kernels.  The same patches should also work
+      relatively easily on kernels as old as 2.6.11 and 2.4.18.
+      
+    * under 2.4 if you are on a non-x86 platform,  you may need to:
+
+        cp linux-2.X.x/include/asm-i386/kmap_types.h linux-2.X.x/include/asm-YYY
+
+      so that you can build the kernel crypto support needed for the cryptosoft
+      driver.
+
+    * For simplicity you should enable all the crypto support in your kernel
+      except for the test driver.  Likewise for the OCF options.  Do not
+      enable OCF crypto drivers for HW that you do not have (for example
+      ixp4xx will not compile on non-Xscale systems).
+
+    * make sure that cryptodev.h (from ocf-linux.tar.gz) is installed as
+      crypto/cryptodev.h in an include directory that is used for building
+      applications for your platform.  For example on a host system that
+      might be:
+
+              /usr/include/crypto/cryptodev.h
+
+    * patch your openssl-0.9.8i code with the openssl-0.9.8i.patch.
+      (NOTE: there is no longer a need to patch ssh). The patch is against:
+      openssl-0_9_8e
+
+      If you need a patch for an older version of openssl,  you should look
+      to older OCF releases.  This patch is unlikely to work on older
+      openssl versions.
+
+      openssl-0.9.8i.patch
+                - enables --with-cryptodev for non BSD systems
+                - adds -cpu option to openssl speed for calculating CPU load
+                  under linux
+                - fixes null pointer in openssl speed multi thread output.
+                - fixes test keys to work with linux crypto's more stringent
+                  key checking.
+                - adds MD5/SHA acceleration (Ronen Shitrit), only enabled
+                  with the --with-cryptodev-digests option
+                - fixes bug in engine code caching.
+
+    * build crypto-tools-XXXXXXXX.tar.gz if you want to try some of the BSD
+      tools for testing OCF (ie., cryptotest).
+
+How to load the OCF drivers
+---------------------------
+
+    First insert the base modules:
+
+        insmod ocf
+        insmod cryptodev
+
+    You can then install the software OCF driver with:
+
+        insmod cryptosoft
+
+    and one or more of the OCF HW drivers with:
+
+        insmod safe
+        insmod hifn7751
+        insmod ixp4xx
+        ...
+
+    all the drivers take a debug option to enable verbose debug so that
+    you can see what is going on.  For debug you load them as:
+
+        insmod ocf crypto_debug=1
+        insmod cryptodev cryptodev_debug=1
+        insmod cryptosoft swcr_debug=1
+
+    You may load more than one OCF crypto driver but then there is no guarantee
+    as to which will be used.
+
+    You can also enable debug at run time on 2.6 systems with the following:
+
+        echo 1 > /sys/module/ocf/parameters/crypto_debug
+        echo 1 > /sys/module/cryptodev/parameters/cryptodev_debug
+        echo 1 > /sys/module/cryptosoft/parameters/swcr_debug
+        echo 1 > /sys/module/hifn7751/parameters/hifn_debug
+        echo 1 > /sys/module/safe/parameters/safe_debug
+        echo 1 > /sys/module/ixp4xx/parameters/ixp_debug
+        ...
+
+Testing the OCF support
+-----------------------
+
+    run "cryptotest",  it should do a short test for a couple of
+    des packets.  If it does everything is working.
+
+    If this works,  then ssh will use the driver when invoked as:
+
+        ssh -c 3des username@host
+
+    to see for sure that it is operating, enable debug as defined above.
+
+    To get a better idea of performance run:
+
+        cryptotest 100 4096
+
+    There are more options to cryptotest,  see the help.
+
+    It is also possible to use openssl to test the speed of the crypto
+    drivers.
+
+        openssl speed -evp des -engine cryptodev -elapsed
+        openssl speed -evp des3 -engine cryptodev -elapsed
+        openssl speed -evp aes128 -engine cryptodev -elapsed
+
+    and multiple threads (10) with:
+
+        openssl speed -evp des -engine cryptodev -elapsed -multi 10
+        openssl speed -evp des3 -engine cryptodev -elapsed -multi 10
+        openssl speed -evp aes128 -engine cryptodev -elapsed -multi 10
+
+    for public key testing you can try:
+
+        cryptokeytest
+        openssl speed -engine cryptodev rsa -elapsed
+        openssl speed -engine cryptodev dsa -elapsed
+
+David McCullough
+david_mccullough@securecomputing.com
diff -Nur linux-2.6.29.1.orig/crypto/ocf/criov.c linux-2.6.29.1/crypto/ocf/criov.c
--- linux-2.6.29.1.orig/crypto/ocf/criov.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/criov.c	2009-04-20 20:01:21.400550244 +0200
@@ -0,0 +1,215 @@
+/*      $OpenBSD: criov.c,v 1.9 2002/01/29 15:48:29 jason Exp $	*/
+
+/*
+ * Linux port done by David McCullough <david_mccullough@securecomputing.com>
+ * Copyright (C) 2006-2007 David McCullough
+ * Copyright (C) 2004-2005 Intel Corporation.
+ * The license and original author are listed below.
+ *
+ * Copyright (c) 1999 Theo de Raadt
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+__FBSDID("$FreeBSD: src/sys/opencrypto/criov.c,v 1.5 2006/06/04 22:15:13 pjd Exp $");
+ */
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/uio.h>
+#include <linux/skbuff.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <asm/io.h>
+
+#include <uio.h>
+#include <cryptodev.h>
+
+/*
+ * This macro is only for avoiding code duplication, as we need to skip
+ * given number of bytes in the same way in three functions below.
+ */
+#define	CUIO_SKIP()	do {						\
+	KASSERT(off >= 0, ("%s: off %d < 0", __func__, off));		\
+	KASSERT(len >= 0, ("%s: len %d < 0", __func__, len));		\
+	while (off > 0) {						\
+		KASSERT(iol >= 0, ("%s: empty in skip", __func__));	\
+		if (off < iov->iov_len)					\
+			break;						\
+		off -= iov->iov_len;					\
+		iol--;							\
+		iov++;							\
+	}								\
+} while (0)
+
+void
+cuio_copydata(struct uio* uio, int off, int len, caddr_t cp)
+{
+	struct iovec *iov = uio->uio_iov;
+	int iol = uio->uio_iovcnt;
+	unsigned count;
+
+	CUIO_SKIP();
+	while (len > 0) {
+		KASSERT(iol >= 0, ("%s: empty", __func__));
+		count = min((int)(iov->iov_len - off), len);
+		memcpy(cp, ((caddr_t)iov->iov_base) + off, count);
+		len -= count;
+		cp += count;
+		off = 0;
+		iol--;
+		iov++;
+	}
+}
+
+void
+cuio_copyback(struct uio* uio, int off, int len, caddr_t cp)
+{
+	struct iovec *iov = uio->uio_iov;
+	int iol = uio->uio_iovcnt;
+	unsigned count;
+
+	CUIO_SKIP();
+	while (len > 0) {
+		KASSERT(iol >= 0, ("%s: empty", __func__));
+		count = min((int)(iov->iov_len - off), len);
+		memcpy(((caddr_t)iov->iov_base) + off, cp, count);
+		len -= count;
+		cp += count;
+		off = 0;
+		iol--;
+		iov++;
+	}
+}
+
+/*
+ * Return a pointer to iov/offset of location in iovec list.
+ */
+struct iovec *
+cuio_getptr(struct uio *uio, int loc, int *off)
+{
+	struct iovec *iov = uio->uio_iov;
+	int iol = uio->uio_iovcnt;
+
+	while (loc >= 0) {
+		/* Normal end of search */
+		if (loc < iov->iov_len) {
+	    		*off = loc;
+	    		return (iov);
+		}
+
+		loc -= iov->iov_len;
+		if (iol == 0) {
+			if (loc == 0) {
+				/* Point at the end of valid data */
+				*off = iov->iov_len;
+				return (iov);
+			} else
+				return (NULL);
+		} else {
+			iov++, iol--;
+		}
+    	}
+
+	return (NULL);
+}
+
+EXPORT_SYMBOL(cuio_copyback);
+EXPORT_SYMBOL(cuio_copydata);
+EXPORT_SYMBOL(cuio_getptr);
+
+
+static void
+skb_copy_bits_back(struct sk_buff *skb, int offset, caddr_t cp, int len)
+{
+	int i;
+	if (offset < skb_headlen(skb)) {
+		memcpy(skb->data + offset, cp, min_t(int, skb_headlen(skb), len));
+		len -= skb_headlen(skb);
+		cp += skb_headlen(skb);
+	}
+	offset -= skb_headlen(skb);
+	for (i = 0; len > 0 && i < skb_shinfo(skb)->nr_frags; i++) {
+		if (offset < skb_shinfo(skb)->frags[i].size) {
+			memcpy(page_address(skb_shinfo(skb)->frags[i].page) +
+					skb_shinfo(skb)->frags[i].page_offset,
+					cp, min_t(int, skb_shinfo(skb)->frags[i].size, len));
+			len -= skb_shinfo(skb)->frags[i].size;
+			cp += skb_shinfo(skb)->frags[i].size;
+		}
+		offset -= skb_shinfo(skb)->frags[i].size;
+	}
+}
+
+void
+crypto_copyback(int flags, caddr_t buf, int off, int size, caddr_t in)
+{
+
+	if ((flags & CRYPTO_F_SKBUF) != 0)
+		skb_copy_bits_back((struct sk_buff *)buf, off, in, size);
+	else if ((flags & CRYPTO_F_IOV) != 0)
+		cuio_copyback((struct uio *)buf, off, size, in);
+	else
+		bcopy(in, buf + off, size);
+}
+
+void
+crypto_copydata(int flags, caddr_t buf, int off, int size, caddr_t out)
+{
+
+	if ((flags & CRYPTO_F_SKBUF) != 0)
+		skb_copy_bits((struct sk_buff *)buf, off, out, size);
+	else if ((flags & CRYPTO_F_IOV) != 0)
+		cuio_copydata((struct uio *)buf, off, size, out);
+	else
+		bcopy(buf + off, out, size);
+}
+
+int
+crypto_apply(int flags, caddr_t buf, int off, int len,
+    int (*f)(void *, void *, u_int), void *arg)
+{
+#if 0
+	int error;
+
+	if ((flags & CRYPTO_F_SKBUF) != 0)
+		error = XXXXXX((struct mbuf *)buf, off, len, f, arg);
+	else if ((flags & CRYPTO_F_IOV) != 0)
+		error = cuio_apply((struct uio *)buf, off, len, f, arg);
+	else
+		error = (*f)(arg, buf + off, len);
+	return (error);
+#else
+	KASSERT(0, ("crypto_apply not implemented!\n"));
+#endif
+	return 0;
+}
+
+EXPORT_SYMBOL(crypto_copyback);
+EXPORT_SYMBOL(crypto_copydata);
+EXPORT_SYMBOL(crypto_apply);
+
diff -Nur linux-2.6.29.1.orig/crypto/ocf/crypto.c linux-2.6.29.1/crypto/ocf/crypto.c
--- linux-2.6.29.1.orig/crypto/ocf/crypto.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/crypto.c	2009-04-20 20:01:21.408550425 +0200
@@ -0,0 +1,1741 @@
+/*-
+ * Linux port done by David McCullough <david_mccullough@securecomputing.com>
+ * Copyright (C) 2006-2007 David McCullough
+ * Copyright (C) 2004-2005 Intel Corporation.
+ * The license and original author are listed below.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * Copyright (c) 2002-2006 Sam Leffler.  All rights reserved.
+ *
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#if 0
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: src/sys/opencrypto/crypto.c,v 1.27 2007/03/21 03:42:51 sam Exp $");
+#endif
+
+/*
+ * Cryptographic Subsystem.
+ *
+ * This code is derived from the Openbsd Cryptographic Framework (OCF)
+ * that has the copyright shown below.  Very little of the original
+ * code remains.
+ */
+/*-
+ * The author of this code is Angelos D. Keromytis (angelos@cis.upenn.edu)
+ *
+ * This code was written by Angelos D. Keromytis in Athens, Greece, in
+ * February 2000. Network Security Technologies Inc. (NSTI) kindly
+ * supported the development of this code.
+ *
+ * Copyright (c) 2000, 2001 Angelos D. Keromytis
+ *
+ * Permission to use, copy, and modify this software with or without fee
+ * is hereby granted, provided that this entire notice is included in
+ * all source code copies of any software which is or includes a copy or
+ * modification of this software.
+ *
+ * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
+ * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
+ * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
+ * PURPOSE.
+ *
+__FBSDID("$FreeBSD: src/sys/opencrypto/crypto.c,v 1.16 2005/01/07 02:29:16 imp Exp $");
+ */
+
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/wait.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include <linux/version.h>
+#include <cryptodev.h>
+
+/*
+ * keep track of whether or not we have been initialised, a big
+ * issue if we are linked into the kernel and a driver gets started before
+ * us
+ */
+static int crypto_initted = 0;
+
+/*
+ * Crypto drivers register themselves by allocating a slot in the
+ * crypto_drivers table with crypto_get_driverid() and then registering
+ * each algorithm they support with crypto_register() and crypto_kregister().
+ */
+
+/*
+ * lock on driver table
+ * we track its state as spin_is_locked does not do anything on non-SMP boxes
+ */
+static spinlock_t	crypto_drivers_lock;
+static int			crypto_drivers_locked;		/* for non-SMP boxes */
+
+#define	CRYPTO_DRIVER_LOCK() \
+			({ \
+				spin_lock_irqsave(&crypto_drivers_lock, d_flags); \
+			 	crypto_drivers_locked = 1; \
+				dprintk("%s,%d: DRIVER_LOCK()\n", __FILE__, __LINE__); \
+			 })
+#define	CRYPTO_DRIVER_UNLOCK() \
+			({ \
+			 	dprintk("%s,%d: DRIVER_UNLOCK()\n", __FILE__, __LINE__); \
+			 	crypto_drivers_locked = 0; \
+				spin_unlock_irqrestore(&crypto_drivers_lock, d_flags); \
+			 })
+#define	CRYPTO_DRIVER_ASSERT() \
+			({ \
+			 	if (!crypto_drivers_locked) { \
+					dprintk("%s,%d: DRIVER_ASSERT!\n", __FILE__, __LINE__); \
+			 	} \
+			 })
+
+/*
+ * Crypto device/driver capabilities structure.
+ *
+ * Synchronization:
+ * (d) - protected by CRYPTO_DRIVER_LOCK()
+ * (q) - protected by CRYPTO_Q_LOCK()
+ * Not tagged fields are read-only.
+ */
+struct cryptocap {
+	device_t	cc_dev;			/* (d) device/driver */
+	u_int32_t	cc_sessions;		/* (d) # of sessions */
+	u_int32_t	cc_koperations;		/* (d) # os asym operations */
+	/*
+	 * Largest possible operator length (in bits) for each type of
+	 * encryption algorithm. XXX not used
+	 */
+	u_int16_t	cc_max_op_len[CRYPTO_ALGORITHM_MAX + 1];
+	u_int8_t	cc_alg[CRYPTO_ALGORITHM_MAX + 1];
+	u_int8_t	cc_kalg[CRK_ALGORITHM_MAX + 1];
+
+	int		cc_flags;		/* (d) flags */
+#define CRYPTOCAP_F_CLEANUP	0x80000000	/* needs resource cleanup */
+	int		cc_qblocked;		/* (q) symmetric q blocked */
+	int		cc_kqblocked;		/* (q) asymmetric q blocked */
+};
+static struct cryptocap *crypto_drivers = NULL;
+static int crypto_drivers_num = 0;
+
+/*
+ * There are two queues for crypto requests; one for symmetric (e.g.
+ * cipher) operations and one for asymmetric (e.g. MOD)operations.
+ * A single mutex is used to lock access to both queues.  We could
+ * have one per-queue but having one simplifies handling of block/unblock
+ * operations.
+ */
+static	int crp_sleep = 0;
+static LIST_HEAD(crp_q);		/* request queues */
+static LIST_HEAD(crp_kq);
+
+static spinlock_t crypto_q_lock;
+
+int crypto_all_qblocked = 0;  /* protect with Q_LOCK */
+module_param(crypto_all_qblocked, int, 0444);
+MODULE_PARM_DESC(crypto_all_qblocked, "Are all crypto queues blocked");
+
+int crypto_all_kqblocked = 0; /* protect with Q_LOCK */
+module_param(crypto_all_kqblocked, int, 0444);
+MODULE_PARM_DESC(crypto_all_kqblocked, "Are all asym crypto queues blocked");
+
+#define	CRYPTO_Q_LOCK() \
+			({ \
+				spin_lock_irqsave(&crypto_q_lock, q_flags); \
+			 	dprintk("%s,%d: Q_LOCK()\n", __FILE__, __LINE__); \
+			 })
+#define	CRYPTO_Q_UNLOCK() \
+			({ \
+			 	dprintk("%s,%d: Q_UNLOCK()\n", __FILE__, __LINE__); \
+				spin_unlock_irqrestore(&crypto_q_lock, q_flags); \
+			 })
+
+/*
+ * There are two queues for processing completed crypto requests; one
+ * for the symmetric and one for the asymmetric ops.  We only need one
+ * but have two to avoid type futzing (cryptop vs. cryptkop).  A single
+ * mutex is used to lock access to both queues.  Note that this lock
+ * must be separate from the lock on request queues to insure driver
+ * callbacks don't generate lock order reversals.
+ */
+static LIST_HEAD(crp_ret_q);		/* callback queues */
+static LIST_HEAD(crp_ret_kq);
+
+static spinlock_t crypto_ret_q_lock;
+#define	CRYPTO_RETQ_LOCK() \
+			({ \
+				spin_lock_irqsave(&crypto_ret_q_lock, r_flags); \
+				dprintk("%s,%d: RETQ_LOCK\n", __FILE__, __LINE__); \
+			 })
+#define	CRYPTO_RETQ_UNLOCK() \
+			({ \
+			 	dprintk("%s,%d: RETQ_UNLOCK\n", __FILE__, __LINE__); \
+				spin_unlock_irqrestore(&crypto_ret_q_lock, r_flags); \
+			 })
+#define	CRYPTO_RETQ_EMPTY()	(list_empty(&crp_ret_q) && list_empty(&crp_ret_kq))
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
+static kmem_cache_t *cryptop_zone;
+static kmem_cache_t *cryptodesc_zone;
+#else
+static struct kmem_cache *cryptop_zone;
+static struct kmem_cache *cryptodesc_zone;
+#endif
+
+#define debug crypto_debug
+int crypto_debug = 0;
+module_param(crypto_debug, int, 0644);
+MODULE_PARM_DESC(crypto_debug, "Enable debug");
+EXPORT_SYMBOL(crypto_debug);
+
+/*
+ * Maximum number of outstanding crypto requests before we start
+ * failing requests.  We need this to prevent DOS when too many
+ * requests are arriving for us to keep up.  Otherwise we will
+ * run the system out of memory.  Since crypto is slow,  we are
+ * usually the bottleneck that needs to say, enough is enough.
+ *
+ * We cannot print errors when this condition occurs,  we are already too
+ * slow,  printing anything will just kill us
+ */
+
+static int crypto_q_cnt = 0;
+module_param(crypto_q_cnt, int, 0444);
+MODULE_PARM_DESC(crypto_q_cnt,
+		"Current number of outstanding crypto requests");
+
+static int crypto_q_max = 1000;
+module_param(crypto_q_max, int, 0644);
+MODULE_PARM_DESC(crypto_q_max,
+		"Maximum number of outstanding crypto requests");
+
+#define bootverbose crypto_verbose
+static int crypto_verbose = 0;
+module_param(crypto_verbose, int, 0644);
+MODULE_PARM_DESC(crypto_verbose,
+		"Enable verbose crypto startup");
+
+int	crypto_usercrypto = 1;	/* userland may do crypto reqs */
+module_param(crypto_usercrypto, int, 0644);
+MODULE_PARM_DESC(crypto_usercrypto,
+	   "Enable/disable user-mode access to crypto support");
+
+int	crypto_userasymcrypto = 1;	/* userland may do asym crypto reqs */
+module_param(crypto_userasymcrypto, int, 0644);
+MODULE_PARM_DESC(crypto_userasymcrypto,
+	   "Enable/disable user-mode access to asymmetric crypto support");
+
+int	crypto_devallowsoft = 0;	/* only use hardware crypto */
+module_param(crypto_devallowsoft, int, 0644);
+MODULE_PARM_DESC(crypto_devallowsoft,
+	   "Enable/disable use of software crypto support");
+
+static pid_t	cryptoproc = (pid_t) -1;
+static struct	completion cryptoproc_exited;
+static DECLARE_WAIT_QUEUE_HEAD(cryptoproc_wait);
+static pid_t	cryptoretproc = (pid_t) -1;
+static struct	completion cryptoretproc_exited;
+static DECLARE_WAIT_QUEUE_HEAD(cryptoretproc_wait);
+
+static	int crypto_proc(void *arg);
+static	int crypto_ret_proc(void *arg);
+static	int crypto_invoke(struct cryptocap *cap, struct cryptop *crp, int hint);
+static	int crypto_kinvoke(struct cryptkop *krp, int flags);
+static	void crypto_exit(void);
+static  int crypto_init(void);
+
+static	struct cryptostats cryptostats;
+
+static struct cryptocap *
+crypto_checkdriver(u_int32_t hid)
+{
+	if (crypto_drivers == NULL)
+		return NULL;
+	return (hid >= crypto_drivers_num ? NULL : &crypto_drivers[hid]);
+}
+
+/*
+ * Compare a driver's list of supported algorithms against another
+ * list; return non-zero if all algorithms are supported.
+ */
+static int
+driver_suitable(const struct cryptocap *cap, const struct cryptoini *cri)
+{
+	const struct cryptoini *cr;
+
+	/* See if all the algorithms are supported. */
+	for (cr = cri; cr; cr = cr->cri_next)
+		if (cap->cc_alg[cr->cri_alg] == 0)
+			return 0;
+	return 1;
+}
+
+/*
+ * Select a driver for a new session that supports the specified
+ * algorithms and, optionally, is constrained according to the flags.
+ * The algorithm we use here is pretty stupid; just use the
+ * first driver that supports all the algorithms we need. If there
+ * are multiple drivers we choose the driver with the fewest active
+ * sessions.  We prefer hardware-backed drivers to software ones.
+ *
+ * XXX We need more smarts here (in real life too, but that's
+ * XXX another story altogether).
+ */
+static struct cryptocap *
+crypto_select_driver(const struct cryptoini *cri, int flags)
+{
+	struct cryptocap *cap, *best;
+	int match, hid;
+
+	CRYPTO_DRIVER_ASSERT();
+
+	/*
+	 * Look first for hardware crypto devices if permitted.
+	 */
+	if (flags & CRYPTOCAP_F_HARDWARE)
+		match = CRYPTOCAP_F_HARDWARE;
+	else
+		match = CRYPTOCAP_F_SOFTWARE;
+	best = NULL;
+again:
+	for (hid = 0; hid < crypto_drivers_num; hid++) {
+		cap = &crypto_drivers[hid];
+		/*
+		 * If it's not initialized, is in the process of
+		 * going away, or is not appropriate (hardware
+		 * or software based on match), then skip.
+		 */
+		if (cap->cc_dev == NULL ||
+		    (cap->cc_flags & CRYPTOCAP_F_CLEANUP) ||
+		    (cap->cc_flags & match) == 0)
+			continue;
+
+		/* verify all the algorithms are supported. */
+		if (driver_suitable(cap, cri)) {
+			if (best == NULL ||
+			    cap->cc_sessions < best->cc_sessions)
+				best = cap;
+		}
+	}
+	if (best != NULL)
+		return best;
+	if (match == CRYPTOCAP_F_HARDWARE && (flags & CRYPTOCAP_F_SOFTWARE)) {
+		/* sort of an Algol 68-style for loop */
+		match = CRYPTOCAP_F_SOFTWARE;
+		goto again;
+	}
+	return best;
+}
+
+/*
+ * Create a new session.  The crid argument specifies a crypto
+ * driver to use or constraints on a driver to select (hardware
+ * only, software only, either).  Whatever driver is selected
+ * must be capable of the requested crypto algorithms.
+ */
+int
+crypto_newsession(u_int64_t *sid, struct cryptoini *cri, int crid)
+{
+	struct cryptocap *cap;
+	u_int32_t hid, lid;
+	int err;
+	unsigned long d_flags;
+
+	CRYPTO_DRIVER_LOCK();
+	if ((crid & (CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SOFTWARE)) == 0) {
+		/*
+		 * Use specified driver; verify it is capable.
+		 */
+		cap = crypto_checkdriver(crid);
+		if (cap != NULL && !driver_suitable(cap, cri))
+			cap = NULL;
+	} else {
+		/*
+		 * No requested driver; select based on crid flags.
+		 */
+		cap = crypto_select_driver(cri, crid);
+		/*
+		 * if NULL then can't do everything in one session.
+		 * XXX Fix this. We need to inject a "virtual" session
+		 * XXX layer right about here.
+		 */
+	}
+	if (cap != NULL) {
+		/* Call the driver initialization routine. */
+		hid = cap - crypto_drivers;
+		lid = hid;		/* Pass the driver ID. */
+		cap->cc_sessions++;
+		CRYPTO_DRIVER_UNLOCK();
+		err = CRYPTODEV_NEWSESSION(cap->cc_dev, &lid, cri);
+		CRYPTO_DRIVER_LOCK();
+		if (err == 0) {
+			(*sid) = (cap->cc_flags & 0xff000000)
+			       | (hid & 0x00ffffff);
+			(*sid) <<= 32;
+			(*sid) |= (lid & 0xffffffff);
+		} else
+			cap->cc_sessions--;
+	} else
+		err = EINVAL;
+	CRYPTO_DRIVER_UNLOCK();
+	return err;
+}
+
+static void
+crypto_remove(struct cryptocap *cap)
+{
+	CRYPTO_DRIVER_ASSERT();
+	if (cap->cc_sessions == 0 && cap->cc_koperations == 0)
+		bzero(cap, sizeof(*cap));
+}
+
+/*
+ * Delete an existing session (or a reserved session on an unregistered
+ * driver).
+ */
+int
+crypto_freesession(u_int64_t sid)
+{
+	struct cryptocap *cap;
+	u_int32_t hid;
+	int err = 0;
+	unsigned long d_flags;
+
+	dprintk("%s()\n", __FUNCTION__);
+	CRYPTO_DRIVER_LOCK();
+
+	if (crypto_drivers == NULL) {
+		err = EINVAL;
+		goto done;
+	}
+
+	/* Determine two IDs. */
+	hid = CRYPTO_SESID2HID(sid);
+
+	if (hid >= crypto_drivers_num) {
+		dprintk("%s - INVALID DRIVER NUM %d\n", __FUNCTION__, hid);
+		err = ENOENT;
+		goto done;
+	}
+	cap = &crypto_drivers[hid];
+
+	if (cap->cc_dev) {
+		CRYPTO_DRIVER_UNLOCK();
+		/* Call the driver cleanup routine, if available, unlocked. */
+		err = CRYPTODEV_FREESESSION(cap->cc_dev, sid);
+		CRYPTO_DRIVER_LOCK();
+	}
+
+	if (cap->cc_sessions)
+		cap->cc_sessions--;
+
+	if (cap->cc_flags & CRYPTOCAP_F_CLEANUP)
+		crypto_remove(cap);
+
+done:
+	CRYPTO_DRIVER_UNLOCK();
+	return err;
+}
+
+/*
+ * Return an unused driver id.  Used by drivers prior to registering
+ * support for the algorithms they handle.
+ */
+int32_t
+crypto_get_driverid(device_t dev, int flags)
+{
+	struct cryptocap *newdrv;
+	int i;
+	unsigned long d_flags;
+
+	if ((flags & (CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SOFTWARE)) == 0) {
+		printf("%s: no flags specified when registering driver\n",
+		    device_get_nameunit(dev));
+		return -1;
+	}
+
+	CRYPTO_DRIVER_LOCK();
+
+	for (i = 0; i < crypto_drivers_num; i++) {
+		if (crypto_drivers[i].cc_dev == NULL &&
+		    (crypto_drivers[i].cc_flags & CRYPTOCAP_F_CLEANUP) == 0) {
+			break;
+		}
+	}
+
+	/* Out of entries, allocate some more. */
+	if (i == crypto_drivers_num) {
+		/* Be careful about wrap-around. */
+		if (2 * crypto_drivers_num <= crypto_drivers_num) {
+			CRYPTO_DRIVER_UNLOCK();
+			printk("crypto: driver count wraparound!\n");
+			return -1;
+		}
+
+		newdrv = kmalloc(2 * crypto_drivers_num * sizeof(struct cryptocap),
+				GFP_KERNEL);
+		if (newdrv == NULL) {
+			CRYPTO_DRIVER_UNLOCK();
+			printk("crypto: no space to expand driver table!\n");
+			return -1;
+		}
+
+		memcpy(newdrv, crypto_drivers,
+				crypto_drivers_num * sizeof(struct cryptocap));
+		memset(&newdrv[crypto_drivers_num], 0,
+				crypto_drivers_num * sizeof(struct cryptocap));
+
+		crypto_drivers_num *= 2;
+
+		kfree(crypto_drivers);
+		crypto_drivers = newdrv;
+	}
+
+	/* NB: state is zero'd on free */
+	crypto_drivers[i].cc_sessions = 1;	/* Mark */
+	crypto_drivers[i].cc_dev = dev;
+	crypto_drivers[i].cc_flags = flags;
+	if (bootverbose)
+		printf("crypto: assign %s driver id %u, flags %u\n",
+		    device_get_nameunit(dev), i, flags);
+
+	CRYPTO_DRIVER_UNLOCK();
+
+	return i;
+}
+
+/*
+ * Lookup a driver by name.  We match against the full device
+ * name and unit, and against just the name.  The latter gives
+ * us a simple widlcarding by device name.  On success return the
+ * driver/hardware identifier; otherwise return -1.
+ */
+int
+crypto_find_driver(const char *match)
+{
+	int i, len = strlen(match);
+	unsigned long d_flags;
+
+	CRYPTO_DRIVER_LOCK();
+	for (i = 0; i < crypto_drivers_num; i++) {
+		device_t dev = crypto_drivers[i].cc_dev;
+		if (dev == NULL ||
+		    (crypto_drivers[i].cc_flags & CRYPTOCAP_F_CLEANUP))
+			continue;
+		if (strncmp(match, device_get_nameunit(dev), len) == 0 ||
+		    strncmp(match, device_get_name(dev), len) == 0)
+			break;
+	}
+	CRYPTO_DRIVER_UNLOCK();
+	return i < crypto_drivers_num ? i : -1;
+}
+
+/*
+ * Return the device_t for the specified driver or NULL
+ * if the driver identifier is invalid.
+ */
+device_t
+crypto_find_device_byhid(int hid)
+{
+	struct cryptocap *cap = crypto_checkdriver(hid);
+	return cap != NULL ? cap->cc_dev : NULL;
+}
+
+/*
+ * Return the device/driver capabilities.
+ */
+int
+crypto_getcaps(int hid)
+{
+	struct cryptocap *cap = crypto_checkdriver(hid);
+	return cap != NULL ? cap->cc_flags : 0;
+}
+
+/*
+ * Register support for a key-related algorithm.  This routine
+ * is called once for each algorithm supported a driver.
+ */
+int
+crypto_kregister(u_int32_t driverid, int kalg, u_int32_t flags)
+{
+	struct cryptocap *cap;
+	int err;
+	unsigned long d_flags;
+
+	dprintk("%s()\n", __FUNCTION__);
+	CRYPTO_DRIVER_LOCK();
+
+	cap = crypto_checkdriver(driverid);
+	if (cap != NULL &&
+	    (CRK_ALGORITM_MIN <= kalg && kalg <= CRK_ALGORITHM_MAX)) {
+		/*
+		 * XXX Do some performance testing to determine placing.
+		 * XXX We probably need an auxiliary data structure that
+		 * XXX describes relative performances.
+		 */
+
+		cap->cc_kalg[kalg] = flags | CRYPTO_ALG_FLAG_SUPPORTED;
+		if (bootverbose)
+			printf("crypto: %s registers key alg %u flags %u\n"
+				, device_get_nameunit(cap->cc_dev)
+				, kalg
+				, flags
+			);
+		err = 0;
+	} else
+		err = EINVAL;
+
+	CRYPTO_DRIVER_UNLOCK();
+	return err;
+}
+
+/*
+ * Register support for a non-key-related algorithm.  This routine
+ * is called once for each such algorithm supported by a driver.
+ */
+int
+crypto_register(u_int32_t driverid, int alg, u_int16_t maxoplen,
+    u_int32_t flags)
+{
+	struct cryptocap *cap;
+	int err;
+	unsigned long d_flags;
+
+	dprintk("%s(id=0x%x, alg=%d, maxoplen=%d, flags=0x%x)\n", __FUNCTION__,
+			driverid, alg, maxoplen, flags);
+
+	CRYPTO_DRIVER_LOCK();
+
+	cap = crypto_checkdriver(driverid);
+	/* NB: algorithms are in the range [1..max] */
+	if (cap != NULL &&
+	    (CRYPTO_ALGORITHM_MIN <= alg && alg <= CRYPTO_ALGORITHM_MAX)) {
+		/*
+		 * XXX Do some performance testing to determine placing.
+		 * XXX We probably need an auxiliary data structure that
+		 * XXX describes relative performances.
+		 */
+
+		cap->cc_alg[alg] = flags | CRYPTO_ALG_FLAG_SUPPORTED;
+		cap->cc_max_op_len[alg] = maxoplen;
+		if (bootverbose)
+			printf("crypto: %s registers alg %u flags %u maxoplen %u\n"
+				, device_get_nameunit(cap->cc_dev)
+				, alg
+				, flags
+				, maxoplen
+			);
+		cap->cc_sessions = 0;		/* Unmark */
+		err = 0;
+	} else
+		err = EINVAL;
+
+	CRYPTO_DRIVER_UNLOCK();
+	return err;
+}
+
+static void
+driver_finis(struct cryptocap *cap)
+{
+	u_int32_t ses, kops;
+
+	CRYPTO_DRIVER_ASSERT();
+
+	ses = cap->cc_sessions;
+	kops = cap->cc_koperations;
+	bzero(cap, sizeof(*cap));
+	if (ses != 0 || kops != 0) {
+		/*
+		 * If there are pending sessions,
+		 * just mark as invalid.
+		 */
+		cap->cc_flags |= CRYPTOCAP_F_CLEANUP;
+		cap->cc_sessions = ses;
+		cap->cc_koperations = kops;
+	}
+}
+
+/*
+ * Unregister a crypto driver. If there are pending sessions using it,
+ * leave enough information around so that subsequent calls using those
+ * sessions will correctly detect the driver has been unregistered and
+ * reroute requests.
+ */
+int
+crypto_unregister(u_int32_t driverid, int alg)
+{
+	struct cryptocap *cap;
+	int i, err;
+	unsigned long d_flags;
+
+	dprintk("%s()\n", __FUNCTION__);
+	CRYPTO_DRIVER_LOCK();
+
+	cap = crypto_checkdriver(driverid);
+	if (cap != NULL &&
+	    (CRYPTO_ALGORITHM_MIN <= alg && alg <= CRYPTO_ALGORITHM_MAX) &&
+	    cap->cc_alg[alg] != 0) {
+		cap->cc_alg[alg] = 0;
+		cap->cc_max_op_len[alg] = 0;
+
+		/* Was this the last algorithm ? */
+		for (i = 1; i <= CRYPTO_ALGORITHM_MAX; i++)
+			if (cap->cc_alg[i] != 0)
+				break;
+
+		if (i == CRYPTO_ALGORITHM_MAX + 1)
+			driver_finis(cap);
+		err = 0;
+	} else
+		err = EINVAL;
+	CRYPTO_DRIVER_UNLOCK();
+	return err;
+}
+
+/*
+ * Unregister all algorithms associated with a crypto driver.
+ * If there are pending sessions using it, leave enough information
+ * around so that subsequent calls using those sessions will
+ * correctly detect the driver has been unregistered and reroute
+ * requests.
+ */
+int
+crypto_unregister_all(u_int32_t driverid)
+{
+	struct cryptocap *cap;
+	int err;
+	unsigned long d_flags;
+
+	dprintk("%s()\n", __FUNCTION__);
+	CRYPTO_DRIVER_LOCK();
+	cap = crypto_checkdriver(driverid);
+	if (cap != NULL) {
+		driver_finis(cap);
+		err = 0;
+	} else
+		err = EINVAL;
+	CRYPTO_DRIVER_UNLOCK();
+
+	return err;
+}
+
+/*
+ * Clear blockage on a driver.  The what parameter indicates whether
+ * the driver is now ready for cryptop's and/or cryptokop's.
+ */
+int
+crypto_unblock(u_int32_t driverid, int what)
+{
+	struct cryptocap *cap;
+	int err;
+	unsigned long q_flags;
+
+	CRYPTO_Q_LOCK();
+	cap = crypto_checkdriver(driverid);
+	if (cap != NULL) {
+		if (what & CRYPTO_SYMQ) {
+			cap->cc_qblocked = 0;
+			crypto_all_qblocked = 0;
+		}
+		if (what & CRYPTO_ASYMQ) {
+			cap->cc_kqblocked = 0;
+			crypto_all_kqblocked = 0;
+		}
+		if (crp_sleep)
+			wake_up_interruptible(&cryptoproc_wait);
+		err = 0;
+	} else
+		err = EINVAL;
+	CRYPTO_Q_UNLOCK(); //DAVIDM should this be a driver lock
+
+	return err;
+}
+
+/*
+ * Add a crypto request to a queue, to be processed by the kernel thread.
+ */
+int
+crypto_dispatch(struct cryptop *crp)
+{
+	struct cryptocap *cap;
+	int result = -1;
+	unsigned long q_flags;
+
+	dprintk("%s()\n", __FUNCTION__);
+
+	cryptostats.cs_ops++;
+
+	CRYPTO_Q_LOCK();
+	if (crypto_q_cnt >= crypto_q_max) {
+		CRYPTO_Q_UNLOCK();
+		cryptostats.cs_drops++;
+		return ENOMEM;
+	}
+	crypto_q_cnt++;
+
+	/*
+	 * Caller marked the request to be processed immediately; dispatch
+	 * it directly to the driver unless the driver is currently blocked.
+	 */
+	if ((crp->crp_flags & CRYPTO_F_BATCH) == 0) {
+		int hid = CRYPTO_SESID2HID(crp->crp_sid);
+		cap = crypto_checkdriver(hid);
+		/* Driver cannot disappear when there is an active session. */
+		KASSERT(cap != NULL, ("%s: Driver disappeared.", __func__));
+		if (!cap->cc_qblocked) {
+			crypto_all_qblocked = 0;
+			crypto_drivers[hid].cc_qblocked = 1;
+			CRYPTO_Q_UNLOCK();
+			result = crypto_invoke(cap, crp, 0);
+			CRYPTO_Q_LOCK();
+			if (result != ERESTART)
+				crypto_drivers[hid].cc_qblocked = 0;
+		}
+	}
+	if (result == ERESTART) {
+		/*
+		 * The driver ran out of resources, mark the
+		 * driver ``blocked'' for cryptop's and put
+		 * the request back in the queue.  It would
+		 * best to put the request back where we got
+		 * it but that's hard so for now we put it
+		 * at the front.  This should be ok; putting
+		 * it at the end does not work.
+		 */
+		list_add(&crp->crp_next, &crp_q);
+		cryptostats.cs_blocks++;
+	} else if (result == -1) {
+		TAILQ_INSERT_TAIL(&crp_q, crp, crp_next);
+	}
+	if (crp_sleep)
+		wake_up_interruptible(&cryptoproc_wait);
+	CRYPTO_Q_UNLOCK();
+	return 0;
+}
+
+/*
+ * Add an asymetric crypto request to a queue,
+ * to be processed by the kernel thread.
+ */
+int
+crypto_kdispatch(struct cryptkop *krp)
+{
+	int error;
+	unsigned long q_flags;
+
+	cryptostats.cs_kops++;
+
+	error = crypto_kinvoke(krp, krp->krp_crid);
+	if (error == ERESTART) {
+		CRYPTO_Q_LOCK();
+		TAILQ_INSERT_TAIL(&crp_kq, krp, krp_next);
+		if (crp_sleep)
+			wake_up_interruptible(&cryptoproc_wait);
+		CRYPTO_Q_UNLOCK();
+		error = 0;
+	}
+	return error;
+}
+
+/*
+ * Verify a driver is suitable for the specified operation.
+ */
+static __inline int
+kdriver_suitable(const struct cryptocap *cap, const struct cryptkop *krp)
+{
+	return (cap->cc_kalg[krp->krp_op] & CRYPTO_ALG_FLAG_SUPPORTED) != 0;
+}
+
+/*
+ * Select a driver for an asym operation.  The driver must
+ * support the necessary algorithm.  The caller can constrain
+ * which device is selected with the flags parameter.  The
+ * algorithm we use here is pretty stupid; just use the first
+ * driver that supports the algorithms we need. If there are
+ * multiple suitable drivers we choose the driver with the
+ * fewest active operations.  We prefer hardware-backed
+ * drivers to software ones when either may be used.
+ */
+static struct cryptocap *
+crypto_select_kdriver(const struct cryptkop *krp, int flags)
+{
+	struct cryptocap *cap, *best, *blocked;
+	int match, hid;
+
+	CRYPTO_DRIVER_ASSERT();
+
+	/*
+	 * Look first for hardware crypto devices if permitted.
+	 */
+	if (flags & CRYPTOCAP_F_HARDWARE)
+		match = CRYPTOCAP_F_HARDWARE;
+	else
+		match = CRYPTOCAP_F_SOFTWARE;
+	best = NULL;
+	blocked = NULL;
+again:
+	for (hid = 0; hid < crypto_drivers_num; hid++) {
+		cap = &crypto_drivers[hid];
+		/*
+		 * If it's not initialized, is in the process of
+		 * going away, or is not appropriate (hardware
+		 * or software based on match), then skip.
+		 */
+		if (cap->cc_dev == NULL ||
+		    (cap->cc_flags & CRYPTOCAP_F_CLEANUP) ||
+		    (cap->cc_flags & match) == 0)
+			continue;
+
+		/* verify all the algorithms are supported. */
+		if (kdriver_suitable(cap, krp)) {
+			if (best == NULL ||
+			    cap->cc_koperations < best->cc_koperations)
+				best = cap;
+		}
+	}
+	if (best != NULL)
+		return best;
+	if (match == CRYPTOCAP_F_HARDWARE && (flags & CRYPTOCAP_F_SOFTWARE)) {
+		/* sort of an Algol 68-style for loop */
+		match = CRYPTOCAP_F_SOFTWARE;
+		goto again;
+	}
+	return best;
+}
+
+/*
+ * Dispatch an assymetric crypto request.
+ */
+static int
+crypto_kinvoke(struct cryptkop *krp, int crid)
+{
+	struct cryptocap *cap = NULL;
+	int error;
+	unsigned long d_flags;
+
+	KASSERT(krp != NULL, ("%s: krp == NULL", __func__));
+	KASSERT(krp->krp_callback != NULL,
+	    ("%s: krp->crp_callback == NULL", __func__));
+
+	CRYPTO_DRIVER_LOCK();
+	if ((crid & (CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SOFTWARE)) == 0) {
+		cap = crypto_checkdriver(crid);
+		if (cap != NULL) {
+			/*
+			 * Driver present, it must support the necessary
+			 * algorithm and, if s/w drivers are excluded,
+			 * it must be registered as hardware-backed.
+			 */
+			if (!kdriver_suitable(cap, krp) ||
+			    (!crypto_devallowsoft &&
+			     (cap->cc_flags & CRYPTOCAP_F_HARDWARE) == 0))
+				cap = NULL;
+		}
+	} else {
+		/*
+		 * No requested driver; select based on crid flags.
+		 */
+		if (!crypto_devallowsoft)	/* NB: disallow s/w drivers */
+			crid &= ~CRYPTOCAP_F_SOFTWARE;
+		cap = crypto_select_kdriver(krp, crid);
+	}
+	if (cap != NULL && !cap->cc_kqblocked) {
+		krp->krp_hid = cap - crypto_drivers;
+		cap->cc_koperations++;
+		CRYPTO_DRIVER_UNLOCK();
+		error = CRYPTODEV_KPROCESS(cap->cc_dev, krp, 0);
+		CRYPTO_DRIVER_LOCK();
+		if (error == ERESTART) {
+			cap->cc_koperations--;
+			CRYPTO_DRIVER_UNLOCK();
+			return (error);
+		}
+		/* return the actual device used */
+		krp->krp_crid = krp->krp_hid;
+	} else {
+		/*
+		 * NB: cap is !NULL if device is blocked; in
+		 *     that case return ERESTART so the operation
+		 *     is resubmitted if possible.
+		 */
+		error = (cap == NULL) ? ENODEV : ERESTART;
+	}
+	CRYPTO_DRIVER_UNLOCK();
+
+	if (error) {
+		krp->krp_status = error;
+		crypto_kdone(krp);
+	}
+	return 0;
+}
+
+
+/*
+ * Dispatch a crypto request to the appropriate crypto devices.
+ */
+static int
+crypto_invoke(struct cryptocap *cap, struct cryptop *crp, int hint)
+{
+	KASSERT(crp != NULL, ("%s: crp == NULL", __func__));
+	KASSERT(crp->crp_callback != NULL,
+	    ("%s: crp->crp_callback == NULL", __func__));
+	KASSERT(crp->crp_desc != NULL, ("%s: crp->crp_desc == NULL", __func__));
+
+	dprintk("%s()\n", __FUNCTION__);
+
+#ifdef CRYPTO_TIMING
+	if (crypto_timing)
+		crypto_tstat(&cryptostats.cs_invoke, &crp->crp_tstamp);
+#endif
+	if (cap->cc_flags & CRYPTOCAP_F_CLEANUP) {
+		struct cryptodesc *crd;
+		u_int64_t nid;
+
+		/*
+		 * Driver has unregistered; migrate the session and return
+		 * an error to the caller so they'll resubmit the op.
+		 *
+		 * XXX: What if there are more already queued requests for this
+		 *      session?
+		 */
+		crypto_freesession(crp->crp_sid);
+
+		for (crd = crp->crp_desc; crd->crd_next; crd = crd->crd_next)
+			crd->CRD_INI.cri_next = &(crd->crd_next->CRD_INI);
+
+		/* XXX propagate flags from initial session? */
+		if (crypto_newsession(&nid, &(crp->crp_desc->CRD_INI),
+		    CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SOFTWARE) == 0)
+			crp->crp_sid = nid;
+
+		crp->crp_etype = EAGAIN;
+		crypto_done(crp);
+		return 0;
+	} else {
+		/*
+		 * Invoke the driver to process the request.
+		 */
+		return CRYPTODEV_PROCESS(cap->cc_dev, crp, hint);
+	}
+}
+
+/*
+ * Release a set of crypto descriptors.
+ */
+void
+crypto_freereq(struct cryptop *crp)
+{
+	struct cryptodesc *crd;
+
+	if (crp == NULL)
+		return;
+
+#ifdef DIAGNOSTIC
+	{
+		struct cryptop *crp2;
+		unsigned long q_flags;
+
+		CRYPTO_Q_LOCK();
+		TAILQ_FOREACH(crp2, &crp_q, crp_next) {
+			KASSERT(crp2 != crp,
+			    ("Freeing cryptop from the crypto queue (%p).",
+			    crp));
+		}
+		CRYPTO_Q_UNLOCK();
+		CRYPTO_RETQ_LOCK();
+		TAILQ_FOREACH(crp2, &crp_ret_q, crp_next) {
+			KASSERT(crp2 != crp,
+			    ("Freeing cryptop from the return queue (%p).",
+			    crp));
+		}
+		CRYPTO_RETQ_UNLOCK();
+	}
+#endif
+
+	while ((crd = crp->crp_desc) != NULL) {
+		crp->crp_desc = crd->crd_next;
+		kmem_cache_free(cryptodesc_zone, crd);
+	}
+	kmem_cache_free(cryptop_zone, crp);
+}
+
+/*
+ * Acquire a set of crypto descriptors.
+ */
+struct cryptop *
+crypto_getreq(int num)
+{
+	struct cryptodesc *crd;
+	struct cryptop *crp;
+
+	crp = kmem_cache_alloc(cryptop_zone, SLAB_ATOMIC);
+	if (crp != NULL) {
+		memset(crp, 0, sizeof(*crp));
+		INIT_LIST_HEAD(&crp->crp_next);
+		init_waitqueue_head(&crp->crp_waitq);
+		while (num--) {
+			crd = kmem_cache_alloc(cryptodesc_zone, SLAB_ATOMIC);
+			if (crd == NULL) {
+				crypto_freereq(crp);
+				return NULL;
+			}
+			memset(crd, 0, sizeof(*crd));
+			crd->crd_next = crp->crp_desc;
+			crp->crp_desc = crd;
+		}
+	}
+	return crp;
+}
+
+/*
+ * Invoke the callback on behalf of the driver.
+ */
+void
+crypto_done(struct cryptop *crp)
+{
+	unsigned long q_flags;
+
+	dprintk("%s()\n", __FUNCTION__);
+	if ((crp->crp_flags & CRYPTO_F_DONE) == 0) {
+		crp->crp_flags |= CRYPTO_F_DONE;
+		CRYPTO_Q_LOCK();
+		crypto_q_cnt--;
+		CRYPTO_Q_UNLOCK();
+	} else
+		printk("crypto: crypto_done op already done, flags 0x%x",
+				crp->crp_flags);
+	if (crp->crp_etype != 0)
+		cryptostats.cs_errs++;
+	/*
+	 * CBIMM means unconditionally do the callback immediately;
+	 * CBIFSYNC means do the callback immediately only if the
+	 * operation was done synchronously.  Both are used to avoid
+	 * doing extraneous context switches; the latter is mostly
+	 * used with the software crypto driver.
+	 */
+	if ((crp->crp_flags & CRYPTO_F_CBIMM) ||
+	    ((crp->crp_flags & CRYPTO_F_CBIFSYNC) &&
+	     (CRYPTO_SESID2CAPS(crp->crp_sid) & CRYPTOCAP_F_SYNC))) {
+		/*
+		 * Do the callback directly.  This is ok when the
+		 * callback routine does very little (e.g. the
+		 * /dev/crypto callback method just does a wakeup).
+		 */
+		crp->crp_callback(crp);
+	} else {
+		unsigned long r_flags;
+		/*
+		 * Normal case; queue the callback for the thread.
+		 */
+		CRYPTO_RETQ_LOCK();
+		if (CRYPTO_RETQ_EMPTY())
+			wake_up_interruptible(&cryptoretproc_wait);/* shared wait channel */
+		TAILQ_INSERT_TAIL(&crp_ret_q, crp, crp_next);
+		CRYPTO_RETQ_UNLOCK();
+	}
+}
+
+/*
+ * Invoke the callback on behalf of the driver.
+ */
+void
+crypto_kdone(struct cryptkop *krp)
+{
+	struct cryptocap *cap;
+	unsigned long d_flags;
+
+	if ((krp->krp_flags & CRYPTO_KF_DONE) != 0)
+		printk("crypto: crypto_kdone op already done, flags 0x%x",
+				krp->krp_flags);
+	krp->krp_flags |= CRYPTO_KF_DONE;
+	if (krp->krp_status != 0)
+		cryptostats.cs_kerrs++;
+
+	CRYPTO_DRIVER_LOCK();
+	/* XXX: What if driver is loaded in the meantime? */
+	if (krp->krp_hid < crypto_drivers_num) {
+		cap = &crypto_drivers[krp->krp_hid];
+		cap->cc_koperations--;
+		KASSERT(cap->cc_koperations >= 0, ("cc_koperations < 0"));
+		if (cap->cc_flags & CRYPTOCAP_F_CLEANUP)
+			crypto_remove(cap);
+	}
+	CRYPTO_DRIVER_UNLOCK();
+
+	/*
+	 * CBIMM means unconditionally do the callback immediately;
+	 * This is used to avoid doing extraneous context switches
+	 */
+	if ((krp->krp_flags & CRYPTO_KF_CBIMM)) {
+		/*
+		 * Do the callback directly.  This is ok when the
+		 * callback routine does very little (e.g. the
+		 * /dev/crypto callback method just does a wakeup).
+		 */
+		krp->krp_callback(krp);
+	} else {
+		unsigned long r_flags;
+		/*
+		 * Normal case; queue the callback for the thread.
+		 */
+		CRYPTO_RETQ_LOCK();
+		if (CRYPTO_RETQ_EMPTY())
+			wake_up_interruptible(&cryptoretproc_wait);/* shared wait channel */
+		TAILQ_INSERT_TAIL(&crp_ret_kq, krp, krp_next);
+		CRYPTO_RETQ_UNLOCK();
+	}
+}
+
+int
+crypto_getfeat(int *featp)
+{
+	int hid, kalg, feat = 0;
+	unsigned long d_flags;
+
+	CRYPTO_DRIVER_LOCK();
+	for (hid = 0; hid < crypto_drivers_num; hid++) {
+		const struct cryptocap *cap = &crypto_drivers[hid];
+
+		if ((cap->cc_flags & CRYPTOCAP_F_SOFTWARE) &&
+		    !crypto_devallowsoft) {
+			continue;
+		}
+		for (kalg = 0; kalg < CRK_ALGORITHM_MAX; kalg++)
+			if (cap->cc_kalg[kalg] & CRYPTO_ALG_FLAG_SUPPORTED)
+				feat |=  1 << kalg;
+	}
+	CRYPTO_DRIVER_UNLOCK();
+	*featp = feat;
+	return (0);
+}
+
+/*
+ * Crypto thread, dispatches crypto requests.
+ */
+static int
+crypto_proc(void *arg)
+{
+	struct cryptop *crp, *submit;
+	struct cryptkop *krp, *krpp;
+	struct cryptocap *cap;
+	u_int32_t hid;
+	int result, hint;
+	unsigned long q_flags;
+
+	ocf_daemonize("crypto");
+
+	CRYPTO_Q_LOCK();
+	for (;;) {
+		/*
+		 * we need to make sure we don't get into a busy loop with nothing
+		 * to do,  the two crypto_all_*blocked vars help us find out when
+		 * we are all full and can do nothing on any driver or Q.  If so we
+		 * wait for an unblock.
+		 */
+		crypto_all_qblocked  = !list_empty(&crp_q);
+
+		/*
+		 * Find the first element in the queue that can be
+		 * processed and look-ahead to see if multiple ops
+		 * are ready for the same driver.
+		 */
+		submit = NULL;
+		hint = 0;
+		list_for_each_entry(crp, &crp_q, crp_next) {
+			hid = CRYPTO_SESID2HID(crp->crp_sid);
+			cap = crypto_checkdriver(hid);
+			/*
+			 * Driver cannot disappear when there is an active
+			 * session.
+			 */
+			KASSERT(cap != NULL, ("%s:%u Driver disappeared.",
+			    __func__, __LINE__));
+			if (cap == NULL || cap->cc_dev == NULL) {
+				/* Op needs to be migrated, process it. */
+				if (submit == NULL)
+					submit = crp;
+				break;
+			}
+			if (!cap->cc_qblocked) {
+				if (submit != NULL) {
+					/*
+					 * We stop on finding another op,
+					 * regardless whether its for the same
+					 * driver or not.  We could keep
+					 * searching the queue but it might be
+					 * better to just use a per-driver
+					 * queue instead.
+					 */
+					if (CRYPTO_SESID2HID(submit->crp_sid) == hid)
+						hint = CRYPTO_HINT_MORE;
+					break;
+				} else {
+					submit = crp;
+					if ((submit->crp_flags & CRYPTO_F_BATCH) == 0)
+						break;
+					/* keep scanning for more are q'd */
+				}
+			}
+		}
+		if (submit != NULL) {
+			hid = CRYPTO_SESID2HID(submit->crp_sid);
+			crypto_all_qblocked = 0;
+			list_del(&submit->crp_next);
+			crypto_drivers[hid].cc_qblocked = 1;
+			cap = crypto_checkdriver(hid);
+			CRYPTO_Q_UNLOCK();
+			KASSERT(cap != NULL, ("%s:%u Driver disappeared.",
+			    __func__, __LINE__));
+			result = crypto_invoke(cap, submit, hint);
+			CRYPTO_Q_LOCK();
+			if (result == ERESTART) {
+				/*
+				 * The driver ran out of resources, mark the
+				 * driver ``blocked'' for cryptop's and put
+				 * the request back in the queue.  It would
+				 * best to put the request back where we got
+				 * it but that's hard so for now we put it
+				 * at the front.  This should be ok; putting
+				 * it at the end does not work.
+				 */
+				/* XXX validate sid again? */
+				list_add(&submit->crp_next, &crp_q);
+				cryptostats.cs_blocks++;
+			} else
+				crypto_drivers[hid].cc_qblocked=0;
+		}
+
+		crypto_all_kqblocked = !list_empty(&crp_kq);
+
+		/* As above, but for key ops */
+		krp = NULL;
+		list_for_each_entry(krpp, &crp_kq, krp_next) {
+			cap = crypto_checkdriver(krpp->krp_hid);
+			if (cap == NULL || cap->cc_dev == NULL) {
+				/*
+				 * Operation needs to be migrated, invalidate
+				 * the assigned device so it will reselect a
+				 * new one below.  Propagate the original
+				 * crid selection flags if supplied.
+				 */
+				krp->krp_hid = krp->krp_crid &
+				    (CRYPTOCAP_F_SOFTWARE|CRYPTOCAP_F_HARDWARE);
+				if (krp->krp_hid == 0)
+					krp->krp_hid =
+				    CRYPTOCAP_F_SOFTWARE|CRYPTOCAP_F_HARDWARE;
+				break;
+			}
+			if (!cap->cc_kqblocked) {
+				krp = krpp;
+				break;
+			}
+		}
+		if (krp != NULL) {
+			crypto_all_kqblocked = 0;
+			list_del(&krp->krp_next);
+			crypto_drivers[krp->krp_hid].cc_kqblocked = 1;
+			CRYPTO_Q_UNLOCK();
+			result = crypto_kinvoke(krp, krp->krp_hid);
+			CRYPTO_Q_LOCK();
+			if (result == ERESTART) {
+				/*
+				 * The driver ran out of resources, mark the
+				 * driver ``blocked'' for cryptkop's and put
+				 * the request back in the queue.  It would
+				 * best to put the request back where we got
+				 * it but that's hard so for now we put it
+				 * at the front.  This should be ok; putting
+				 * it at the end does not work.
+				 */
+				/* XXX validate sid again? */
+				list_add(&krp->krp_next, &crp_kq);
+				cryptostats.cs_kblocks++;
+			} else
+				crypto_drivers[krp->krp_hid].cc_kqblocked = 0;
+		}
+
+		if (submit == NULL && krp == NULL) {
+			/*
+			 * Nothing more to be processed.  Sleep until we're
+			 * woken because there are more ops to process.
+			 * This happens either by submission or by a driver
+			 * becoming unblocked and notifying us through
+			 * crypto_unblock.  Note that when we wakeup we
+			 * start processing each queue again from the
+			 * front. It's not clear that it's important to
+			 * preserve this ordering since ops may finish
+			 * out of order if dispatched to different devices
+			 * and some become blocked while others do not.
+			 */
+			dprintk("%s - sleeping (qe=%d qb=%d kqe=%d kqb=%d)\n",
+					__FUNCTION__,
+					list_empty(&crp_q), crypto_all_qblocked,
+					list_empty(&crp_kq), crypto_all_kqblocked);
+			CRYPTO_Q_UNLOCK();
+			crp_sleep = 1;
+			wait_event_interruptible(cryptoproc_wait,
+					!(list_empty(&crp_q) || crypto_all_qblocked) ||
+					!(list_empty(&crp_kq) || crypto_all_kqblocked) ||
+					cryptoproc == (pid_t) -1);
+			crp_sleep = 0;
+			if (signal_pending (current)) {
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+				spin_lock_irq(&current->sigmask_lock);
+#endif
+				flush_signals(current);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+				spin_unlock_irq(&current->sigmask_lock);
+#endif
+			}
+			CRYPTO_Q_LOCK();
+			dprintk("%s - awake\n", __FUNCTION__);
+			if (cryptoproc == (pid_t) -1)
+				break;
+			cryptostats.cs_intrs++;
+		}
+	}
+	CRYPTO_Q_UNLOCK();
+	complete_and_exit(&cryptoproc_exited, 0);
+}
+
+/*
+ * Crypto returns thread, does callbacks for processed crypto requests.
+ * Callbacks are done here, rather than in the crypto drivers, because
+ * callbacks typically are expensive and would slow interrupt handling.
+ */
+static int
+crypto_ret_proc(void *arg)
+{
+	struct cryptop *crpt;
+	struct cryptkop *krpt;
+	unsigned long  r_flags;
+
+	ocf_daemonize("crypto_ret");
+
+	CRYPTO_RETQ_LOCK();
+	for (;;) {
+		/* Harvest return q's for completed ops */
+		crpt = NULL;
+		if (!list_empty(&crp_ret_q))
+			crpt = list_entry(crp_ret_q.next, typeof(*crpt), crp_next);
+		if (crpt != NULL)
+			list_del(&crpt->crp_next);
+
+		krpt = NULL;
+		if (!list_empty(&crp_ret_kq))
+			krpt = list_entry(crp_ret_kq.next, typeof(*krpt), krp_next);
+		if (krpt != NULL)
+			list_del(&krpt->krp_next);
+
+		if (crpt != NULL || krpt != NULL) {
+			CRYPTO_RETQ_UNLOCK();
+			/*
+			 * Run callbacks unlocked.
+			 */
+			if (crpt != NULL)
+				crpt->crp_callback(crpt);
+			if (krpt != NULL)
+				krpt->krp_callback(krpt);
+			CRYPTO_RETQ_LOCK();
+		} else {
+			/*
+			 * Nothing more to be processed.  Sleep until we're
+			 * woken because there are more returns to process.
+			 */
+			dprintk("%s - sleeping\n", __FUNCTION__);
+			CRYPTO_RETQ_UNLOCK();
+			wait_event_interruptible(cryptoretproc_wait,
+					cryptoretproc == (pid_t) -1 ||
+					!list_empty(&crp_ret_q) ||
+					!list_empty(&crp_ret_kq));
+			if (signal_pending (current)) {
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+				spin_lock_irq(&current->sigmask_lock);
+#endif
+				flush_signals(current);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+				spin_unlock_irq(&current->sigmask_lock);
+#endif
+			}
+			CRYPTO_RETQ_LOCK();
+			dprintk("%s - awake\n", __FUNCTION__);
+			if (cryptoretproc == (pid_t) -1) {
+				dprintk("%s - EXITING!\n", __FUNCTION__);
+				break;
+			}
+			cryptostats.cs_rets++;
+		}
+	}
+	CRYPTO_RETQ_UNLOCK();
+	complete_and_exit(&cryptoretproc_exited, 0);
+}
+
+
+#if 0 /* should put this into /proc or something */
+static void
+db_show_drivers(void)
+{
+	int hid;
+
+	db_printf("%12s %4s %4s %8s %2s %2s\n"
+		, "Device"
+		, "Ses"
+		, "Kops"
+		, "Flags"
+		, "QB"
+		, "KB"
+	);
+	for (hid = 0; hid < crypto_drivers_num; hid++) {
+		const struct cryptocap *cap = &crypto_drivers[hid];
+		if (cap->cc_dev == NULL)
+			continue;
+		db_printf("%-12s %4u %4u %08x %2u %2u\n"
+		    , device_get_nameunit(cap->cc_dev)
+		    , cap->cc_sessions
+		    , cap->cc_koperations
+		    , cap->cc_flags
+		    , cap->cc_qblocked
+		    , cap->cc_kqblocked
+		);
+	}
+}
+
+DB_SHOW_COMMAND(crypto, db_show_crypto)
+{
+	struct cryptop *crp;
+
+	db_show_drivers();
+	db_printf("\n");
+
+	db_printf("%4s %8s %4s %4s %4s %4s %8s %8s\n",
+	    "HID", "Caps", "Ilen", "Olen", "Etype", "Flags",
+	    "Desc", "Callback");
+	TAILQ_FOREACH(crp, &crp_q, crp_next) {
+		db_printf("%4u %08x %4u %4u %4u %04x %8p %8p\n"
+		    , (int) CRYPTO_SESID2HID(crp->crp_sid)
+		    , (int) CRYPTO_SESID2CAPS(crp->crp_sid)
+		    , crp->crp_ilen, crp->crp_olen
+		    , crp->crp_etype
+		    , crp->crp_flags
+		    , crp->crp_desc
+		    , crp->crp_callback
+		);
+	}
+	if (!TAILQ_EMPTY(&crp_ret_q)) {
+		db_printf("\n%4s %4s %4s %8s\n",
+		    "HID", "Etype", "Flags", "Callback");
+		TAILQ_FOREACH(crp, &crp_ret_q, crp_next) {
+			db_printf("%4u %4u %04x %8p\n"
+			    , (int) CRYPTO_SESID2HID(crp->crp_sid)
+			    , crp->crp_etype
+			    , crp->crp_flags
+			    , crp->crp_callback
+			);
+		}
+	}
+}
+
+DB_SHOW_COMMAND(kcrypto, db_show_kcrypto)
+{
+	struct cryptkop *krp;
+
+	db_show_drivers();
+	db_printf("\n");
+
+	db_printf("%4s %5s %4s %4s %8s %4s %8s\n",
+	    "Op", "Status", "#IP", "#OP", "CRID", "HID", "Callback");
+	TAILQ_FOREACH(krp, &crp_kq, krp_next) {
+		db_printf("%4u %5u %4u %4u %08x %4u %8p\n"
+		    , krp->krp_op
+		    , krp->krp_status
+		    , krp->krp_iparams, krp->krp_oparams
+		    , krp->krp_crid, krp->krp_hid
+		    , krp->krp_callback
+		);
+	}
+	if (!TAILQ_EMPTY(&crp_ret_q)) {
+		db_printf("%4s %5s %8s %4s %8s\n",
+		    "Op", "Status", "CRID", "HID", "Callback");
+		TAILQ_FOREACH(krp, &crp_ret_kq, krp_next) {
+			db_printf("%4u %5u %08x %4u %8p\n"
+			    , krp->krp_op
+			    , krp->krp_status
+			    , krp->krp_crid, krp->krp_hid
+			    , krp->krp_callback
+			);
+		}
+	}
+}
+#endif
+
+
+static int
+crypto_init(void)
+{
+	int error;
+
+	dprintk("%s(0x%x)\n", __FUNCTION__, (int) crypto_init);
+
+	if (crypto_initted)
+		return 0;
+	crypto_initted = 1;
+
+	spin_lock_init(&crypto_drivers_lock);
+	spin_lock_init(&crypto_q_lock);
+	spin_lock_init(&crypto_ret_q_lock);
+
+	cryptop_zone = kmem_cache_create("cryptop", sizeof(struct cryptop),
+				       0, SLAB_HWCACHE_ALIGN, NULL
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23)
+				       , NULL
+#endif
+					);
+
+	cryptodesc_zone = kmem_cache_create("cryptodesc", sizeof(struct cryptodesc),
+				       0, SLAB_HWCACHE_ALIGN, NULL
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23)
+				       , NULL
+#endif
+					);
+
+	if (cryptodesc_zone == NULL || cryptop_zone == NULL) {
+		printk("crypto: crypto_init cannot setup crypto zones\n");
+		error = ENOMEM;
+		goto bad;
+	}
+
+	crypto_drivers_num = CRYPTO_DRIVERS_INITIAL;
+	crypto_drivers = kmalloc(crypto_drivers_num * sizeof(struct cryptocap),
+			GFP_KERNEL);
+	if (crypto_drivers == NULL) {
+		printk("crypto: crypto_init cannot setup crypto drivers\n");
+		error = ENOMEM;
+		goto bad;
+	}
+
+	memset(crypto_drivers, 0, crypto_drivers_num * sizeof(struct cryptocap));
+
+	init_completion(&cryptoproc_exited);
+	init_completion(&cryptoretproc_exited);
+
+	cryptoproc = 0; /* to avoid race condition where proc runs first */
+	cryptoproc = kernel_thread(crypto_proc, NULL, CLONE_FS|CLONE_FILES);
+	if (cryptoproc < 0) {
+		error = cryptoproc;
+		printk("crypto: crypto_init cannot start crypto thread; error %d",
+			error);
+		goto bad;
+	}
+
+	cryptoretproc = 0; /* to avoid race condition where proc runs first */
+	cryptoretproc = kernel_thread(crypto_ret_proc, NULL, CLONE_FS|CLONE_FILES);
+	if (cryptoretproc < 0) {
+		error = cryptoretproc;
+		printk("crypto: crypto_init cannot start cryptoret thread; error %d",
+				error);
+		goto bad;
+	}
+
+	return 0;
+bad:
+	crypto_exit();
+	return error;
+}
+
+
+static void
+crypto_exit(void)
+{
+	pid_t p;
+	unsigned long d_flags;
+
+	dprintk("%s()\n", __FUNCTION__);
+
+	/*
+	 * Terminate any crypto threads.
+	 */
+
+	CRYPTO_DRIVER_LOCK();
+	p = cryptoproc;
+	cryptoproc = (pid_t) -1;
+	kill_pid(p, SIGTERM, 1);
+	wake_up_interruptible(&cryptoproc_wait);
+	CRYPTO_DRIVER_UNLOCK();
+
+	wait_for_completion(&cryptoproc_exited);
+
+	CRYPTO_DRIVER_LOCK();
+	p = cryptoretproc;
+	cryptoretproc = (pid_t) -1;
+	kill_pid(p, SIGTERM, 1);
+	wake_up_interruptible(&cryptoretproc_wait);
+	CRYPTO_DRIVER_UNLOCK();
+
+	wait_for_completion(&cryptoretproc_exited);
+
+	/* XXX flush queues??? */
+
+	/* 
+	 * Reclaim dynamically allocated resources.
+	 */
+	if (crypto_drivers != NULL)
+		kfree(crypto_drivers);
+
+	if (cryptodesc_zone != NULL)
+		kmem_cache_destroy(cryptodesc_zone);
+	if (cryptop_zone != NULL)
+		kmem_cache_destroy(cryptop_zone);
+}
+
+
+EXPORT_SYMBOL(crypto_newsession);
+EXPORT_SYMBOL(crypto_freesession);
+EXPORT_SYMBOL(crypto_get_driverid);
+EXPORT_SYMBOL(crypto_kregister);
+EXPORT_SYMBOL(crypto_register);
+EXPORT_SYMBOL(crypto_unregister);
+EXPORT_SYMBOL(crypto_unregister_all);
+EXPORT_SYMBOL(crypto_unblock);
+EXPORT_SYMBOL(crypto_dispatch);
+EXPORT_SYMBOL(crypto_kdispatch);
+EXPORT_SYMBOL(crypto_freereq);
+EXPORT_SYMBOL(crypto_getreq);
+EXPORT_SYMBOL(crypto_done);
+EXPORT_SYMBOL(crypto_kdone);
+EXPORT_SYMBOL(crypto_getfeat);
+EXPORT_SYMBOL(crypto_userasymcrypto);
+EXPORT_SYMBOL(crypto_getcaps);
+EXPORT_SYMBOL(crypto_find_driver);
+EXPORT_SYMBOL(crypto_find_device_byhid);
+
+module_init(crypto_init);
+module_exit(crypto_exit);
+
+MODULE_LICENSE("BSD");
+MODULE_AUTHOR("David McCullough <david_mccullough@securecomputing.com>");
+MODULE_DESCRIPTION("OCF (OpenBSD Cryptographic Framework)");
diff -Nur linux-2.6.29.1.orig/crypto/ocf/cryptodev.c linux-2.6.29.1/crypto/ocf/cryptodev.c
--- linux-2.6.29.1.orig/crypto/ocf/cryptodev.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/cryptodev.c	2009-04-20 20:01:21.412551214 +0200
@@ -0,0 +1,1048 @@
+/*	$OpenBSD: cryptodev.c,v 1.52 2002/06/19 07:22:46 deraadt Exp $	*/
+
+/*-
+ * Linux port done by David McCullough <david_mccullough@securecomputing.com>
+ * Copyright (C) 2006-2007 David McCullough
+ * Copyright (C) 2004-2005 Intel Corporation.
+ * The license and original author are listed below.
+ *
+ * Copyright (c) 2001 Theo de Raadt
+ * Copyright (c) 2002-2006 Sam Leffler, Errno Consulting
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Effort sponsored in part by the Defense Advanced Research Projects
+ * Agency (DARPA) and Air Force Research Laboratory, Air Force
+ * Materiel Command, USAF, under agreement number F30602-01-2-0537.
+ *
+__FBSDID("$FreeBSD: src/sys/opencrypto/cryptodev.c,v 1.34 2007/05/09 19:37:02 gnn Exp $");
+ */
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/types.h>
+#include <linux/time.h>
+#include <linux/delay.h>
+#include <linux/list.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/unistd.h>
+#include <linux/module.h>
+#include <linux/wait.h>
+#include <linux/slab.h>
+#include <linux/fs.h>
+#include <linux/dcache.h>
+#include <linux/file.h>
+#include <linux/mount.h>
+#include <linux/miscdevice.h>
+#include <linux/version.h>
+#include <asm/uaccess.h>
+
+#include <cryptodev.h>
+#include <uio.h>
+
+extern asmlinkage long sys_dup(unsigned int fildes);
+
+#define debug cryptodev_debug
+int cryptodev_debug = 0;
+module_param(cryptodev_debug, int, 0644);
+MODULE_PARM_DESC(cryptodev_debug, "Enable cryptodev debug");
+
+struct csession_info {
+	u_int16_t	blocksize;
+	u_int16_t	minkey, maxkey;
+
+	u_int16_t	keysize;
+	/* u_int16_t	hashsize;  */
+	u_int16_t	authsize;
+	/* u_int16_t	ctxsize; */
+};
+
+struct csession {
+	struct list_head	list;
+	u_int64_t	sid;
+	u_int32_t	ses;
+
+	wait_queue_head_t waitq;
+
+	u_int32_t	cipher;
+
+	u_int32_t	mac;
+
+	caddr_t		key;
+	int		keylen;
+	u_char		tmp_iv[EALG_MAX_BLOCK_LEN];
+
+	caddr_t		mackey;
+	int		mackeylen;
+
+	struct csession_info info;
+
+	struct iovec	iovec;
+	struct uio	uio;
+	int		error;
+};
+
+struct fcrypt {
+	struct list_head	csessions;
+	int		sesn;
+};
+
+static struct csession *csefind(struct fcrypt *, u_int);
+static int csedelete(struct fcrypt *, struct csession *);
+static struct csession *cseadd(struct fcrypt *, struct csession *);
+static struct csession *csecreate(struct fcrypt *, u_int64_t,
+		struct cryptoini *crie, struct cryptoini *cria, struct csession_info *);
+static int csefree(struct csession *);
+
+static	int cryptodev_op(struct csession *, struct crypt_op *);
+static	int cryptodev_key(struct crypt_kop *);
+static	int cryptodev_find(struct crypt_find_op *);
+
+static int cryptodev_cb(void *);
+static int cryptodev_open(struct inode *inode, struct file *filp);
+
+/*
+ * Check a crypto identifier to see if it requested
+ * a valid crid and it's capabilities match.
+ */
+static int
+checkcrid(int crid)
+{
+	int hid = crid & ~(CRYPTOCAP_F_SOFTWARE | CRYPTOCAP_F_HARDWARE);
+	int typ = crid & (CRYPTOCAP_F_SOFTWARE | CRYPTOCAP_F_HARDWARE);
+	int caps = 0;
+	
+	/* if the user hasn't selected a driver, then just call newsession */
+	if (hid == 0 && typ != 0)
+		return 0;
+
+	caps = crypto_getcaps(hid);
+
+	/* didn't find anything with capabilities */
+	if (caps == 0) {
+		dprintk("%s: hid=%x typ=%x not matched\n", __FUNCTION__, hid, typ);
+		return EINVAL;
+	}
+	
+	/* the user didn't specify SW or HW, so the driver is ok */
+	if (typ == 0)
+		return 0;
+
+	/* if the type specified didn't match */
+	if (typ != (caps & (CRYPTOCAP_F_SOFTWARE | CRYPTOCAP_F_HARDWARE))) {
+		dprintk("%s: hid=%x typ=%x caps=%x not matched\n", __FUNCTION__,
+				hid, typ, caps);
+		return EINVAL;
+	}
+
+	return 0;
+}
+
+static int
+cryptodev_op(struct csession *cse, struct crypt_op *cop)
+{
+	struct cryptop *crp = NULL;
+	struct cryptodesc *crde = NULL, *crda = NULL;
+	int error = 0;
+
+	dprintk("%s()\n", __FUNCTION__);
+	if (cop->len > CRYPTO_MAX_DATA_LEN) {
+		dprintk("%s: %d > %d\n", __FUNCTION__, cop->len, CRYPTO_MAX_DATA_LEN);
+		return (E2BIG);
+	}
+
+	if (cse->info.blocksize && (cop->len % cse->info.blocksize) != 0) {
+		dprintk("%s: blocksize=%d len=%d\n", __FUNCTION__, cse->info.blocksize,
+				cop->len);
+		return (EINVAL);
+	}
+
+	cse->uio.uio_iov = &cse->iovec;
+	cse->uio.uio_iovcnt = 1;
+	cse->uio.uio_offset = 0;
+#if 0
+	cse->uio.uio_resid = cop->len;
+	cse->uio.uio_segflg = UIO_SYSSPACE;
+	cse->uio.uio_rw = UIO_WRITE;
+	cse->uio.uio_td = td;
+#endif
+	cse->uio.uio_iov[0].iov_len = cop->len;
+	if (cse->info.authsize)
+		cse->uio.uio_iov[0].iov_len += cse->info.authsize;
+	cse->uio.uio_iov[0].iov_base = kmalloc(cse->uio.uio_iov[0].iov_len,
+			GFP_KERNEL);
+
+	if (cse->uio.uio_iov[0].iov_base == NULL) {
+		dprintk("%s: iov_base kmalloc(%d) failed\n", __FUNCTION__,
+				cse->uio.uio_iov[0].iov_len);
+		return (ENOMEM);
+	}
+
+	crp = crypto_getreq((cse->info.blocksize != 0) + (cse->info.authsize != 0));
+	if (crp == NULL) {
+		dprintk("%s: ENOMEM\n", __FUNCTION__);
+		error = ENOMEM;
+		goto bail;
+	}
+
+	if (cse->info.authsize) {
+		crda = crp->crp_desc;
+		if (cse->info.blocksize)
+			crde = crda->crd_next;
+	} else {
+		if (cse->info.blocksize)
+			crde = crp->crp_desc;
+		else {
+			dprintk("%s: bad request\n", __FUNCTION__);
+			error = EINVAL;
+			goto bail;
+		}
+	}
+
+	if ((error = copy_from_user(cse->uio.uio_iov[0].iov_base, cop->src,
+					cop->len))) {
+		dprintk("%s: bad copy\n", __FUNCTION__);
+		goto bail;
+	}
+
+	if (crda) {
+		crda->crd_skip = 0;
+		crda->crd_len = cop->len;
+		crda->crd_inject = cop->len;
+
+		crda->crd_alg = cse->mac;
+		crda->crd_key = cse->mackey;
+		crda->crd_klen = cse->mackeylen * 8;
+	}
+
+	if (crde) {
+		if (cop->op == COP_ENCRYPT)
+			crde->crd_flags |= CRD_F_ENCRYPT;
+		else
+			crde->crd_flags &= ~CRD_F_ENCRYPT;
+		crde->crd_len = cop->len;
+		crde->crd_inject = 0;
+
+		crde->crd_alg = cse->cipher;
+		crde->crd_key = cse->key;
+		crde->crd_klen = cse->keylen * 8;
+	}
+
+	crp->crp_ilen = cse->uio.uio_iov[0].iov_len;
+	crp->crp_flags = CRYPTO_F_IOV | CRYPTO_F_CBIMM
+		       | (cop->flags & COP_F_BATCH);
+	crp->crp_buf = (caddr_t)&cse->uio;
+	crp->crp_callback = (int (*) (struct cryptop *)) cryptodev_cb;
+	crp->crp_sid = cse->sid;
+	crp->crp_opaque = (void *)cse;
+
+	if (cop->iv) {
+		if (crde == NULL) {
+			error = EINVAL;
+			dprintk("%s no crde\n", __FUNCTION__);
+			goto bail;
+		}
+		if (cse->cipher == CRYPTO_ARC4) { /* XXX use flag? */
+			error = EINVAL;
+			dprintk("%s arc4 with IV\n", __FUNCTION__);
+			goto bail;
+		}
+		if ((error = copy_from_user(cse->tmp_iv, cop->iv,
+						cse->info.blocksize))) {
+			dprintk("%s bad iv copy\n", __FUNCTION__);
+			goto bail;
+		}
+		memcpy(crde->crd_iv, cse->tmp_iv, cse->info.blocksize);
+		crde->crd_flags |= CRD_F_IV_EXPLICIT | CRD_F_IV_PRESENT;
+		crde->crd_skip = 0;
+	} else if (cse->cipher == CRYPTO_ARC4) { /* XXX use flag? */
+		crde->crd_skip = 0;
+	} else if (crde) {
+		crde->crd_flags |= CRD_F_IV_PRESENT;
+		crde->crd_skip = cse->info.blocksize;
+		crde->crd_len -= cse->info.blocksize;
+	}
+
+	if (cop->mac && crda == NULL) {
+		error = EINVAL;
+		dprintk("%s no crda\n", __FUNCTION__);
+		goto bail;
+	}
+
+	/*
+	 * Let the dispatch run unlocked, then, interlock against the
+	 * callback before checking if the operation completed and going
+	 * to sleep.  This insures drivers don't inherit our lock which
+	 * results in a lock order reversal between crypto_dispatch forced
+	 * entry and the crypto_done callback into us.
+	 */
+	error = crypto_dispatch(crp);
+	if (error == 0) {
+		dprintk("%s about to WAIT\n", __FUNCTION__);
+		/*
+		 * we really need to wait for driver to complete to maintain
+		 * state,  luckily interrupts will be remembered
+		 */
+		do {
+			error = wait_event_interruptible(crp->crp_waitq,
+					((crp->crp_flags & CRYPTO_F_DONE) != 0));
+			/*
+			 * we can't break out of this loop or we will leave behind
+			 * a huge mess,  however,  staying here means if your driver
+			 * is broken user applications can hang and not be killed.
+			 * The solution,  fix your driver :-)
+			 */
+			if (error) {
+				schedule();
+				error = 0;
+			}
+		} while ((crp->crp_flags & CRYPTO_F_DONE) == 0);
+		dprintk("%s finished WAITING error=%d\n", __FUNCTION__, error);
+	}
+
+	if (crp->crp_etype != 0) {
+		error = crp->crp_etype;
+		dprintk("%s error in crp processing\n", __FUNCTION__);
+		goto bail;
+	}
+
+	if (cse->error) {
+		error = cse->error;
+		dprintk("%s error in cse processing\n", __FUNCTION__);
+		goto bail;
+	}
+
+	if (cop->dst && (error = copy_to_user(cop->dst,
+					cse->uio.uio_iov[0].iov_base, cop->len))) {
+		dprintk("%s bad dst copy\n", __FUNCTION__);
+		goto bail;
+	}
+
+	if (cop->mac &&
+			(error=copy_to_user(cop->mac,
+				(caddr_t)cse->uio.uio_iov[0].iov_base + cop->len,
+				cse->info.authsize))) {
+		dprintk("%s bad mac copy\n", __FUNCTION__);
+		goto bail;
+	}
+
+bail:
+	if (crp)
+		crypto_freereq(crp);
+	if (cse->uio.uio_iov[0].iov_base)
+		kfree(cse->uio.uio_iov[0].iov_base);
+
+	return (error);
+}
+
+static int
+cryptodev_cb(void *op)
+{
+	struct cryptop *crp = (struct cryptop *) op;
+	struct csession *cse = (struct csession *)crp->crp_opaque;
+	int error;
+
+	dprintk("%s()\n", __FUNCTION__);
+	error = crp->crp_etype;
+	if (error == EAGAIN) {
+		crp->crp_flags &= ~CRYPTO_F_DONE;
+#ifdef NOTYET
+		/*
+		 * DAVIDM I am fairly sure that we should turn this into a batch
+		 * request to stop bad karma/lockup, revisit
+		 */
+		crp->crp_flags |= CRYPTO_F_BATCH;
+#endif
+		return crypto_dispatch(crp);
+	}
+	if (error != 0 || (crp->crp_flags & CRYPTO_F_DONE)) {
+		cse->error = error;
+		wake_up_interruptible(&crp->crp_waitq);
+	}
+	return (0);
+}
+
+static int
+cryptodevkey_cb(void *op)
+{
+	struct cryptkop *krp = (struct cryptkop *) op;
+	dprintk("%s()\n", __FUNCTION__);
+	wake_up_interruptible(&krp->krp_waitq);
+	return (0);
+}
+
+static int
+cryptodev_key(struct crypt_kop *kop)
+{
+	struct cryptkop *krp = NULL;
+	int error = EINVAL;
+	int in, out, size, i;
+
+	dprintk("%s()\n", __FUNCTION__);
+	if (kop->crk_iparams + kop->crk_oparams > CRK_MAXPARAM) {
+		dprintk("%s params too big\n", __FUNCTION__);
+		return (EFBIG);
+	}
+
+	in = kop->crk_iparams;
+	out = kop->crk_oparams;
+	switch (kop->crk_op) {
+	case CRK_MOD_EXP:
+		if (in == 3 && out == 1)
+			break;
+		return (EINVAL);
+	case CRK_MOD_EXP_CRT:
+		if (in == 6 && out == 1)
+			break;
+		return (EINVAL);
+	case CRK_DSA_SIGN:
+		if (in == 5 && out == 2)
+			break;
+		return (EINVAL);
+	case CRK_DSA_VERIFY:
+		if (in == 7 && out == 0)
+			break;
+		return (EINVAL);
+	case CRK_DH_COMPUTE_KEY:
+		if (in == 3 && out == 1)
+			break;
+		return (EINVAL);
+	default:
+		return (EINVAL);
+	}
+
+	krp = (struct cryptkop *)kmalloc(sizeof *krp, GFP_KERNEL);
+	if (!krp)
+		return (ENOMEM);
+	bzero(krp, sizeof *krp);
+	krp->krp_op = kop->crk_op;
+	krp->krp_status = kop->crk_status;
+	krp->krp_iparams = kop->crk_iparams;
+	krp->krp_oparams = kop->crk_oparams;
+	krp->krp_crid = kop->crk_crid;
+	krp->krp_status = 0;
+	krp->krp_flags = CRYPTO_KF_CBIMM;
+	krp->krp_callback = (int (*) (struct cryptkop *)) cryptodevkey_cb;
+	init_waitqueue_head(&krp->krp_waitq);
+
+	for (i = 0; i < CRK_MAXPARAM; i++)
+		krp->krp_param[i].crp_nbits = kop->crk_param[i].crp_nbits;
+	for (i = 0; i < krp->krp_iparams + krp->krp_oparams; i++) {
+		size = (krp->krp_param[i].crp_nbits + 7) / 8;
+		if (size == 0)
+			continue;
+		krp->krp_param[i].crp_p = (caddr_t) kmalloc(size, GFP_KERNEL);
+		if (i >= krp->krp_iparams)
+			continue;
+		error = copy_from_user(krp->krp_param[i].crp_p,
+				kop->crk_param[i].crp_p, size);
+		if (error)
+			goto fail;
+	}
+
+	error = crypto_kdispatch(krp);
+	if (error)
+		goto fail;
+
+	do {
+		error = wait_event_interruptible(krp->krp_waitq,
+				((krp->krp_flags & CRYPTO_KF_DONE) != 0));
+		/*
+		 * we can't break out of this loop or we will leave behind
+		 * a huge mess,  however,  staying here means if your driver
+		 * is broken user applications can hang and not be killed.
+		 * The solution,  fix your driver :-)
+		 */
+		if (error) {
+			schedule();
+			error = 0;
+		}
+	} while ((krp->krp_flags & CRYPTO_KF_DONE) == 0);
+
+	dprintk("%s finished WAITING error=%d\n", __FUNCTION__, error);
+	
+	kop->crk_crid = krp->krp_crid;		/* device that did the work */
+	if (krp->krp_status != 0) {
+		error = krp->krp_status;
+		goto fail;
+	}
+
+	for (i = krp->krp_iparams; i < krp->krp_iparams + krp->krp_oparams; i++) {
+		size = (krp->krp_param[i].crp_nbits + 7) / 8;
+		if (size == 0)
+			continue;
+		error = copy_to_user(kop->crk_param[i].crp_p, krp->krp_param[i].crp_p,
+				size);
+		if (error)
+			goto fail;
+	}
+
+fail:
+	if (krp) {
+		kop->crk_status = krp->krp_status;
+		for (i = 0; i < CRK_MAXPARAM; i++) {
+			if (krp->krp_param[i].crp_p)
+				kfree(krp->krp_param[i].crp_p);
+		}
+		kfree(krp);
+	}
+	return (error);
+}
+
+static int
+cryptodev_find(struct crypt_find_op *find)
+{
+	device_t dev;
+
+	if (find->crid != -1) {
+		dev = crypto_find_device_byhid(find->crid);
+		if (dev == NULL)
+			return (ENOENT);
+		strlcpy(find->name, device_get_nameunit(dev),
+		    sizeof(find->name));
+	} else {
+		find->crid = crypto_find_driver(find->name);
+		if (find->crid == -1)
+			return (ENOENT);
+	}
+	return (0);
+}
+
+static struct csession *
+csefind(struct fcrypt *fcr, u_int ses)
+{
+	struct csession *cse;
+
+	dprintk("%s()\n", __FUNCTION__);
+	list_for_each_entry(cse, &fcr->csessions, list)
+		if (cse->ses == ses)
+			return (cse);
+	return (NULL);
+}
+
+static int
+csedelete(struct fcrypt *fcr, struct csession *cse_del)
+{
+	struct csession *cse;
+
+	dprintk("%s()\n", __FUNCTION__);
+	list_for_each_entry(cse, &fcr->csessions, list) {
+		if (cse == cse_del) {
+			list_del(&cse->list);
+			return (1);
+		}
+	}
+	return (0);
+}
+	
+static struct csession *
+cseadd(struct fcrypt *fcr, struct csession *cse)
+{
+	dprintk("%s()\n", __FUNCTION__);
+	list_add_tail(&cse->list, &fcr->csessions);
+	cse->ses = fcr->sesn++;
+	return (cse);
+}
+
+static struct csession *
+csecreate(struct fcrypt *fcr, u_int64_t sid, struct cryptoini *crie,
+	struct cryptoini *cria, struct csession_info *info)
+{
+	struct csession *cse;
+
+	dprintk("%s()\n", __FUNCTION__);
+	cse = (struct csession *) kmalloc(sizeof(struct csession), GFP_KERNEL);
+	if (cse == NULL)
+		return NULL;
+	memset(cse, 0, sizeof(struct csession));
+
+	INIT_LIST_HEAD(&cse->list);
+	init_waitqueue_head(&cse->waitq);
+
+	cse->key = crie->cri_key;
+	cse->keylen = crie->cri_klen/8;
+	cse->mackey = cria->cri_key;
+	cse->mackeylen = cria->cri_klen/8;
+	cse->sid = sid;
+	cse->cipher = crie->cri_alg;
+	cse->mac = cria->cri_alg;
+	cse->info = *info;
+	cseadd(fcr, cse);
+	return (cse);
+}
+
+static int
+csefree(struct csession *cse)
+{
+	int error;
+
+	dprintk("%s()\n", __FUNCTION__);
+	error = crypto_freesession(cse->sid);
+	if (cse->key)
+		kfree(cse->key);
+	if (cse->mackey)
+		kfree(cse->mackey);
+	kfree(cse);
+	return(error);
+}
+
+static int
+cryptodev_ioctl(
+	struct inode *inode,
+	struct file *filp,
+	unsigned int cmd,
+	unsigned long arg)
+{
+	struct cryptoini cria, crie;
+	struct fcrypt *fcr = filp->private_data;
+	struct csession *cse;
+	struct csession_info info;
+	struct session2_op sop;
+	struct crypt_op cop;
+	struct crypt_kop kop;
+	struct crypt_find_op fop;
+	u_int64_t sid;
+	u_int32_t ses;
+	int feat, fd, error = 0, crid;
+	mm_segment_t fs;
+
+	dprintk("%s(cmd=%x arg=%lx)\n", __FUNCTION__, cmd, arg);
+
+	switch (cmd) {
+
+	case CRIOGET: {
+		dprintk("%s(CRIOGET)\n", __FUNCTION__);
+		fs = get_fs();
+		set_fs(get_ds());
+		for (fd = 0; fd < files_fdtable(current->files)->max_fds; fd++)
+			if (files_fdtable(current->files)->fd[fd] == filp)
+				break;
+		fd = sys_dup(fd);
+		set_fs(fs);
+		put_user(fd, (int *) arg);
+		return IS_ERR_VALUE(fd) ? fd : 0;
+		}
+
+#define	CIOCGSESSSTR	(cmd == CIOCGSESSION ? "CIOCGSESSION" : "CIOCGSESSION2")
+	case CIOCGSESSION:
+	case CIOCGSESSION2:
+		dprintk("%s(%s)\n", __FUNCTION__, CIOCGSESSSTR);
+		memset(&crie, 0, sizeof(crie));
+		memset(&cria, 0, sizeof(cria));
+		memset(&info, 0, sizeof(info));
+		memset(&sop, 0, sizeof(sop));
+
+		if (copy_from_user(&sop, (void*)arg, (cmd == CIOCGSESSION) ?
+					sizeof(struct session_op) : sizeof(sop))) {
+			dprintk("%s(%s) - bad copy\n", __FUNCTION__, CIOCGSESSSTR);
+			error = EFAULT;
+			goto bail;
+		}
+
+		switch (sop.cipher) {
+		case 0:
+			dprintk("%s(%s) - no cipher\n", __FUNCTION__, CIOCGSESSSTR);
+			break;
+		case CRYPTO_NULL_CBC:
+			info.blocksize = NULL_BLOCK_LEN;
+			info.minkey = NULL_MIN_KEY_LEN;
+			info.maxkey = NULL_MAX_KEY_LEN;
+			break;
+		case CRYPTO_DES_CBC:
+			info.blocksize = DES_BLOCK_LEN;
+			info.minkey = DES_MIN_KEY_LEN;
+			info.maxkey = DES_MAX_KEY_LEN;
+			break;
+		case CRYPTO_3DES_CBC:
+			info.blocksize = DES3_BLOCK_LEN;
+			info.minkey = DES3_MIN_KEY_LEN;
+			info.maxkey = DES3_MAX_KEY_LEN;
+			break;
+		case CRYPTO_BLF_CBC:
+			info.blocksize = BLOWFISH_BLOCK_LEN;
+			info.minkey = BLOWFISH_MIN_KEY_LEN;
+			info.maxkey = BLOWFISH_MAX_KEY_LEN;
+			break;
+		case CRYPTO_CAST_CBC:
+			info.blocksize = CAST128_BLOCK_LEN;
+			info.minkey = CAST128_MIN_KEY_LEN;
+			info.maxkey = CAST128_MAX_KEY_LEN;
+			break;
+		case CRYPTO_SKIPJACK_CBC:
+			info.blocksize = SKIPJACK_BLOCK_LEN;
+			info.minkey = SKIPJACK_MIN_KEY_LEN;
+			info.maxkey = SKIPJACK_MAX_KEY_LEN;
+			break;
+		case CRYPTO_AES_CBC:
+			info.blocksize = AES_BLOCK_LEN;
+			info.minkey = AES_MIN_KEY_LEN;
+			info.maxkey = AES_MAX_KEY_LEN;
+			break;
+		case CRYPTO_ARC4:
+			info.blocksize = ARC4_BLOCK_LEN;
+			info.minkey = ARC4_MIN_KEY_LEN;
+			info.maxkey = ARC4_MAX_KEY_LEN;
+			break;
+		case CRYPTO_CAMELLIA_CBC:
+			info.blocksize = CAMELLIA_BLOCK_LEN;
+			info.minkey = CAMELLIA_MIN_KEY_LEN;
+			info.maxkey = CAMELLIA_MAX_KEY_LEN;
+			break;
+		default:
+			dprintk("%s(%s) - bad cipher\n", __FUNCTION__, CIOCGSESSSTR);
+			error = EINVAL;
+			goto bail;
+		}
+
+		switch (sop.mac) {
+		case 0:
+			dprintk("%s(%s) - no mac\n", __FUNCTION__, CIOCGSESSSTR);
+			break;
+		case CRYPTO_NULL_HMAC:
+			info.authsize = NULL_HASH_LEN;
+			break;
+		case CRYPTO_MD5:
+			info.authsize = MD5_HASH_LEN;
+			break;
+		case CRYPTO_SHA1:
+			info.authsize = SHA1_HASH_LEN;
+			break;
+		case CRYPTO_SHA2_256:
+			info.authsize = SHA2_256_HASH_LEN;
+			break;
+		case CRYPTO_SHA2_384:
+			info.authsize = SHA2_384_HASH_LEN;
+  			break;
+		case CRYPTO_SHA2_512:
+			info.authsize = SHA2_512_HASH_LEN;
+			break;
+		case CRYPTO_RIPEMD160:
+			info.authsize = RIPEMD160_HASH_LEN;
+			break;
+		case CRYPTO_MD5_HMAC:
+			info.authsize = MD5_HASH_LEN;
+			break;
+		case CRYPTO_SHA1_HMAC:
+			info.authsize = SHA1_HASH_LEN;
+			break;
+		case CRYPTO_SHA2_256_HMAC:
+			info.authsize = SHA2_256_HASH_LEN;
+			break;
+		case CRYPTO_SHA2_384_HMAC:
+			info.authsize = SHA2_384_HASH_LEN;
+  			break;
+		case CRYPTO_SHA2_512_HMAC:
+			info.authsize = SHA2_512_HASH_LEN;
+			break;
+		case CRYPTO_RIPEMD160_HMAC:
+			info.authsize = RIPEMD160_HASH_LEN;
+			break;
+		default:
+			dprintk("%s(%s) - bad mac\n", __FUNCTION__, CIOCGSESSSTR);
+			error = EINVAL;
+			goto bail;
+		}
+
+		if (info.blocksize) {
+			crie.cri_alg = sop.cipher;
+			crie.cri_klen = sop.keylen * 8;
+			if ((info.maxkey && sop.keylen > info.maxkey) ||
+				   	sop.keylen < info.minkey) {
+				dprintk("%s(%s) - bad key\n", __FUNCTION__, CIOCGSESSSTR);
+				error = EINVAL;
+				goto bail;
+			}
+
+			crie.cri_key = (u_int8_t *) kmalloc(crie.cri_klen/8+1, GFP_KERNEL);
+			if (copy_from_user(crie.cri_key, sop.key,
+							crie.cri_klen/8)) {
+				dprintk("%s(%s) - bad copy\n", __FUNCTION__, CIOCGSESSSTR);
+				error = EFAULT;
+				goto bail;
+			}
+			if (info.authsize)
+				crie.cri_next = &cria;
+		}
+
+		if (info.authsize) {
+			cria.cri_alg = sop.mac;
+			cria.cri_klen = sop.mackeylen * 8;
+			if ((info.maxkey && sop.mackeylen > info.maxkey) ||
+					sop.keylen < info.minkey) {
+				dprintk("%s(%s) - mackeylen %d\n", __FUNCTION__, CIOCGSESSSTR,
+						sop.mackeylen);
+				error = EINVAL;
+				goto bail;
+			}
+
+			if (cria.cri_klen) {
+				cria.cri_key = (u_int8_t *) kmalloc(cria.cri_klen/8,GFP_KERNEL);
+				if (copy_from_user(cria.cri_key, sop.mackey,
+								cria.cri_klen / 8)) {
+					dprintk("%s(%s) - bad copy\n", __FUNCTION__, CIOCGSESSSTR);
+					error = EFAULT;
+					goto bail;
+				}
+			}
+		}
+
+		/* NB: CIOGSESSION2 has the crid */
+		if (cmd == CIOCGSESSION2) {
+			crid = sop.crid;
+			error = checkcrid(crid);
+			if (error) {
+				dprintk("%s(%s) - checkcrid %x\n", __FUNCTION__,
+						CIOCGSESSSTR, error);
+				goto bail;
+			}
+		} else {
+			/* allow either HW or SW to be used */
+			crid = CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SOFTWARE;
+		}
+		error = crypto_newsession(&sid, (info.blocksize ? &crie : &cria), crid);
+		if (error) {
+			dprintk("%s(%s) - newsession %d\n",__FUNCTION__,CIOCGSESSSTR,error);
+			goto bail;
+		}
+
+		cse = csecreate(fcr, sid, &crie, &cria, &info);
+		if (cse == NULL) {
+			crypto_freesession(sid);
+			error = EINVAL;
+			dprintk("%s(%s) - csecreate failed\n", __FUNCTION__, CIOCGSESSSTR);
+			goto bail;
+		}
+		sop.ses = cse->ses;
+
+		if (cmd == CIOCGSESSION2) {
+			/* return hardware/driver id */
+			sop.crid = CRYPTO_SESID2HID(cse->sid);
+		}
+
+		if (copy_to_user((void*)arg, &sop, (cmd == CIOCGSESSION) ?
+					sizeof(struct session_op) : sizeof(sop))) {
+			dprintk("%s(%s) - bad copy\n", __FUNCTION__, CIOCGSESSSTR);
+			error = EFAULT;
+		}
+bail:
+		if (error) {
+			dprintk("%s(%s) - bail %d\n", __FUNCTION__, CIOCGSESSSTR, error);
+			if (crie.cri_key)
+				kfree(crie.cri_key);
+			if (cria.cri_key)
+				kfree(cria.cri_key);
+		}
+		break;
+	case CIOCFSESSION:
+		dprintk("%s(CIOCFSESSION)\n", __FUNCTION__);
+		get_user(ses, (uint32_t*)arg);
+		cse = csefind(fcr, ses);
+		if (cse == NULL) {
+			error = EINVAL;
+			dprintk("%s(CIOCFSESSION) - Fail %d\n", __FUNCTION__, error);
+			break;
+		}
+		csedelete(fcr, cse);
+		error = csefree(cse);
+		break;
+	case CIOCCRYPT:
+		dprintk("%s(CIOCCRYPT)\n", __FUNCTION__);
+		if(copy_from_user(&cop, (void*)arg, sizeof(cop))) {
+			dprintk("%s(CIOCCRYPT) - bad copy\n", __FUNCTION__);
+			error = EFAULT;
+			goto bail;
+		}
+		cse = csefind(fcr, cop.ses);
+		if (cse == NULL) {
+			error = EINVAL;
+			dprintk("%s(CIOCCRYPT) - Fail %d\n", __FUNCTION__, error);
+			break;
+		}
+		error = cryptodev_op(cse, &cop);
+		if(copy_to_user((void*)arg, &cop, sizeof(cop))) {
+			dprintk("%s(CIOCCRYPT) - bad return copy\n", __FUNCTION__);
+			error = EFAULT;
+			goto bail;
+		}
+		break;
+	case CIOCKEY:
+	case CIOCKEY2:
+		dprintk("%s(CIOCKEY)\n", __FUNCTION__);
+		if (!crypto_userasymcrypto)
+			return (EPERM);		/* XXX compat? */
+		if(copy_from_user(&kop, (void*)arg, sizeof(kop))) {
+			dprintk("%s(CIOCKEY) - bad copy\n", __FUNCTION__);
+			error = EFAULT;
+			goto bail;
+		}
+		if (cmd == CIOCKEY) {
+			/* NB: crypto core enforces s/w driver use */
+			kop.crk_crid =
+			    CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SOFTWARE;
+		}
+		error = cryptodev_key(&kop);
+		if(copy_to_user((void*)arg, &kop, sizeof(kop))) {
+			dprintk("%s(CIOCGKEY) - bad return copy\n", __FUNCTION__);
+			error = EFAULT;
+			goto bail;
+		}
+		break;
+	case CIOCASYMFEAT:
+		dprintk("%s(CIOCASYMFEAT)\n", __FUNCTION__);
+		if (!crypto_userasymcrypto) {
+			/*
+			 * NB: if user asym crypto operations are
+			 * not permitted return "no algorithms"
+			 * so well-behaved applications will just
+			 * fallback to doing them in software.
+			 */
+			feat = 0;
+		} else
+			error = crypto_getfeat(&feat);
+		if (!error) {
+		  error = copy_to_user((void*)arg, &feat, sizeof(feat));
+		}
+		break;
+	case CIOCFINDDEV:
+		if (copy_from_user(&fop, (void*)arg, sizeof(fop))) {
+			dprintk("%s(CIOCFINDDEV) - bad copy\n", __FUNCTION__);
+			error = EFAULT;
+			goto bail;
+		}
+		error = cryptodev_find(&fop);
+		if (copy_to_user((void*)arg, &fop, sizeof(fop))) {
+			dprintk("%s(CIOCFINDDEV) - bad return copy\n", __FUNCTION__);
+			error = EFAULT;
+			goto bail;
+		}
+		break;
+	default:
+		dprintk("%s(unknown ioctl 0x%x)\n", __FUNCTION__, cmd);
+		error = EINVAL;
+		break;
+	}
+	return(-error);
+}
+
+#ifdef HAVE_UNLOCKED_IOCTL
+static long
+cryptodev_unlocked_ioctl(
+	struct file *filp,
+	unsigned int cmd,
+	unsigned long arg)
+{
+	return cryptodev_ioctl(NULL, filp, cmd, arg);
+}
+#endif
+
+static int
+cryptodev_open(struct inode *inode, struct file *filp)
+{
+	struct fcrypt *fcr;
+
+	dprintk("%s()\n", __FUNCTION__);
+	if (filp->private_data) {
+		printk("cryptodev: Private data already exists !\n");
+		return(0);
+	}
+
+	fcr = kmalloc(sizeof(*fcr), GFP_KERNEL);
+	if (!fcr) {
+		dprintk("%s() - malloc failed\n", __FUNCTION__);
+		return(-ENOMEM);
+	}
+	memset(fcr, 0, sizeof(*fcr));
+
+	INIT_LIST_HEAD(&fcr->csessions);
+	filp->private_data = fcr;
+	return(0);
+}
+
+static int
+cryptodev_release(struct inode *inode, struct file *filp)
+{
+	struct fcrypt *fcr = filp->private_data;
+	struct csession *cse, *tmp;
+
+	dprintk("%s()\n", __FUNCTION__);
+	if (!filp) {
+		printk("cryptodev: No private data on release\n");
+		return(0);
+	}
+
+	list_for_each_entry_safe(cse, tmp, &fcr->csessions, list) {
+		list_del(&cse->list);
+		(void)csefree(cse);
+	}
+	filp->private_data = NULL;
+	kfree(fcr);
+	return(0);
+}
+
+static struct file_operations cryptodev_fops = {
+	.owner = THIS_MODULE,
+	.open = cryptodev_open,
+	.release = cryptodev_release,
+	.ioctl = cryptodev_ioctl,
+#ifdef HAVE_UNLOCKED_IOCTL
+	.unlocked_ioctl = cryptodev_unlocked_ioctl,
+#endif
+};
+
+static struct miscdevice cryptodev = {
+	.minor = CRYPTODEV_MINOR,
+	.name = "crypto",
+	.fops = &cryptodev_fops,
+};
+
+static int __init
+cryptodev_init(void)
+{
+	int rc;
+
+	dprintk("%s(%p)\n", __FUNCTION__, cryptodev_init);
+	rc = misc_register(&cryptodev);
+	if (rc) {
+		printk(KERN_ERR "cryptodev: registration of /dev/crypto failed\n");
+		return(rc);
+	}
+
+	return(0);
+}
+
+static void __exit
+cryptodev_exit(void)
+{
+	dprintk("%s()\n", __FUNCTION__);
+	misc_deregister(&cryptodev);
+}
+
+module_init(cryptodev_init);
+module_exit(cryptodev_exit);
+
+MODULE_LICENSE("BSD");
+MODULE_AUTHOR("David McCullough <david_mccullough@securecomputing.com>");
+MODULE_DESCRIPTION("Cryptodev (user interface to OCF)");
diff -Nur linux-2.6.29.1.orig/crypto/ocf/cryptodev.h linux-2.6.29.1/crypto/ocf/cryptodev.h
--- linux-2.6.29.1.orig/crypto/ocf/cryptodev.h	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/cryptodev.h	2009-04-20 20:01:21.416551165 +0200
@@ -0,0 +1,478 @@
+/*	$FreeBSD: src/sys/opencrypto/cryptodev.h,v 1.25 2007/05/09 19:37:02 gnn Exp $	*/
+/*	$OpenBSD: cryptodev.h,v 1.31 2002/06/11 11:14:29 beck Exp $	*/
+
+/*-
+ * Linux port done by David McCullough <david_mccullough@securecomputing.com>
+ * Copyright (C) 2006-2007 David McCullough
+ * Copyright (C) 2004-2005 Intel Corporation.
+ * The license and original author are listed below.
+ *
+ * The author of this code is Angelos D. Keromytis (angelos@cis.upenn.edu)
+ * Copyright (c) 2002-2006 Sam Leffler, Errno Consulting
+ *
+ * This code was written by Angelos D. Keromytis in Athens, Greece, in
+ * February 2000. Network Security Technologies Inc. (NSTI) kindly
+ * supported the development of this code.
+ *
+ * Copyright (c) 2000 Angelos D. Keromytis
+ *
+ * Permission to use, copy, and modify this software with or without fee
+ * is hereby granted, provided that this entire notice is included in
+ * all source code copies of any software which is or includes a copy or
+ * modification of this software.
+ *
+ * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
+ * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
+ * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
+ * PURPOSE.
+ *
+ * Copyright (c) 2001 Theo de Raadt
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Effort sponsored in part by the Defense Advanced Research Projects
+ * Agency (DARPA) and Air Force Research Laboratory, Air Force
+ * Materiel Command, USAF, under agreement number F30602-01-2-0537.
+ *
+ */
+
+#ifndef _CRYPTO_CRYPTO_H_
+#define _CRYPTO_CRYPTO_H_
+
+/* Some initial values */
+#define CRYPTO_DRIVERS_INITIAL	4
+#define CRYPTO_SW_SESSIONS	32
+
+/* Hash values */
+#define NULL_HASH_LEN		0
+#define MD5_HASH_LEN		16
+#define SHA1_HASH_LEN		20
+#define RIPEMD160_HASH_LEN	20
+#define SHA2_256_HASH_LEN	32
+#define SHA2_384_HASH_LEN	48
+#define SHA2_512_HASH_LEN	64
+#define MD5_KPDK_HASH_LEN	16
+#define SHA1_KPDK_HASH_LEN	20
+/* Maximum hash algorithm result length */
+#define HASH_MAX_LEN		SHA2_512_HASH_LEN /* Keep this updated */
+
+/* HMAC values */
+#define NULL_HMAC_BLOCK_LEN			1
+#define MD5_HMAC_BLOCK_LEN			64
+#define SHA1_HMAC_BLOCK_LEN			64
+#define RIPEMD160_HMAC_BLOCK_LEN	64
+#define SHA2_256_HMAC_BLOCK_LEN		64
+#define SHA2_384_HMAC_BLOCK_LEN		128
+#define SHA2_512_HMAC_BLOCK_LEN		128
+/* Maximum HMAC block length */
+#define HMAC_MAX_BLOCK_LEN		SHA2_512_HMAC_BLOCK_LEN /* Keep this updated */
+#define HMAC_IPAD_VAL			0x36
+#define HMAC_OPAD_VAL			0x5C
+
+/* Encryption algorithm block sizes */
+#define NULL_BLOCK_LEN			1
+#define DES_BLOCK_LEN			8
+#define DES3_BLOCK_LEN			8
+#define BLOWFISH_BLOCK_LEN		8
+#define SKIPJACK_BLOCK_LEN		8
+#define CAST128_BLOCK_LEN		8
+#define RIJNDAEL128_BLOCK_LEN	16
+#define AES_BLOCK_LEN			RIJNDAEL128_BLOCK_LEN
+#define CAMELLIA_BLOCK_LEN		16
+#define ARC4_BLOCK_LEN			1
+#define EALG_MAX_BLOCK_LEN		AES_BLOCK_LEN /* Keep this updated */
+
+/* Encryption algorithm min and max key sizes */
+#define NULL_MIN_KEY_LEN		0
+#define NULL_MAX_KEY_LEN		0
+#define DES_MIN_KEY_LEN			8
+#define DES_MAX_KEY_LEN			8
+#define DES3_MIN_KEY_LEN		24
+#define DES3_MAX_KEY_LEN		24
+#define BLOWFISH_MIN_KEY_LEN	4
+#define BLOWFISH_MAX_KEY_LEN	56
+#define SKIPJACK_MIN_KEY_LEN	10
+#define SKIPJACK_MAX_KEY_LEN	10
+#define CAST128_MIN_KEY_LEN		5
+#define CAST128_MAX_KEY_LEN		16
+#define RIJNDAEL128_MIN_KEY_LEN	16
+#define RIJNDAEL128_MAX_KEY_LEN	32
+#define AES_MIN_KEY_LEN			RIJNDAEL128_MIN_KEY_LEN
+#define AES_MAX_KEY_LEN			RIJNDAEL128_MAX_KEY_LEN
+#define CAMELLIA_MIN_KEY_LEN	16
+#define CAMELLIA_MAX_KEY_LEN	32
+#define ARC4_MIN_KEY_LEN		1
+#define ARC4_MAX_KEY_LEN		256
+
+/* Max size of data that can be processed */
+#define CRYPTO_MAX_DATA_LEN		64*1024 - 1
+
+#define CRYPTO_ALGORITHM_MIN	1
+#define CRYPTO_DES_CBC			1
+#define CRYPTO_3DES_CBC			2
+#define CRYPTO_BLF_CBC			3
+#define CRYPTO_CAST_CBC			4
+#define CRYPTO_SKIPJACK_CBC		5
+#define CRYPTO_MD5_HMAC			6
+#define CRYPTO_SHA1_HMAC		7
+#define CRYPTO_RIPEMD160_HMAC	8
+#define CRYPTO_MD5_KPDK			9
+#define CRYPTO_SHA1_KPDK		10
+#define CRYPTO_RIJNDAEL128_CBC	11 /* 128 bit blocksize */
+#define CRYPTO_AES_CBC			11 /* 128 bit blocksize -- the same as above */
+#define CRYPTO_ARC4				12
+#define CRYPTO_MD5				13
+#define CRYPTO_SHA1				14
+#define CRYPTO_NULL_HMAC		15
+#define CRYPTO_NULL_CBC			16
+#define CRYPTO_DEFLATE_COMP		17 /* Deflate compression algorithm */
+#define CRYPTO_SHA2_256_HMAC	18
+#define CRYPTO_SHA2_384_HMAC	19
+#define CRYPTO_SHA2_512_HMAC	20
+#define CRYPTO_CAMELLIA_CBC		21
+#define CRYPTO_SHA2_256			22
+#define CRYPTO_SHA2_384			23
+#define CRYPTO_SHA2_512			24
+#define CRYPTO_RIPEMD160		25
+#define CRYPTO_ALGORITHM_MAX	25 /* Keep updated - see below */
+
+/* Algorithm flags */
+#define CRYPTO_ALG_FLAG_SUPPORTED	0x01 /* Algorithm is supported */
+#define CRYPTO_ALG_FLAG_RNG_ENABLE	0x02 /* Has HW RNG for DH/DSA */
+#define CRYPTO_ALG_FLAG_DSA_SHA		0x04 /* Can do SHA on msg */
+
+/*
+ * Crypto driver/device flags.  They can set in the crid
+ * parameter when creating a session or submitting a key
+ * op to affect the device/driver assigned.  If neither
+ * of these are specified then the crid is assumed to hold
+ * the driver id of an existing (and suitable) device that
+ * must be used to satisfy the request.
+ */
+#define CRYPTO_FLAG_HARDWARE	0x01000000	/* hardware accelerated */
+#define CRYPTO_FLAG_SOFTWARE	0x02000000	/* software implementation */
+
+/* NB: deprecated */
+struct session_op {
+	u_int32_t	cipher;		/* ie. CRYPTO_DES_CBC */
+	u_int32_t	mac;		/* ie. CRYPTO_MD5_HMAC */
+
+	u_int32_t	keylen;		/* cipher key */
+	caddr_t		key;
+	int		mackeylen;	/* mac key */
+	caddr_t		mackey;
+
+  	u_int32_t	ses;		/* returns: session # */ 
+};
+
+struct session2_op {
+	u_int32_t	cipher;		/* ie. CRYPTO_DES_CBC */
+	u_int32_t	mac;		/* ie. CRYPTO_MD5_HMAC */
+
+	u_int32_t	keylen;		/* cipher key */
+	caddr_t		key;
+	int		mackeylen;	/* mac key */
+	caddr_t		mackey;
+
+  	u_int32_t	ses;		/* returns: session # */ 
+	int		crid;		/* driver id + flags (rw) */
+	int		pad[4];		/* for future expansion */
+};
+
+struct crypt_op {
+	u_int32_t	ses;
+	u_int16_t	op;		/* i.e. COP_ENCRYPT */
+#define COP_NONE	0
+#define COP_ENCRYPT	1
+#define COP_DECRYPT	2
+	u_int16_t	flags;
+#define	COP_F_BATCH	0x0008		/* Batch op if possible */
+	u_int		len;
+	caddr_t		src, dst;	/* become iov[] inside kernel */
+	caddr_t		mac;		/* must be big enough for chosen MAC */
+	caddr_t		iv;
+};
+
+/*
+ * Parameters for looking up a crypto driver/device by
+ * device name or by id.  The latter are returned for
+ * created sessions (crid) and completed key operations.
+ */
+struct crypt_find_op {
+	int		crid;		/* driver id + flags */
+	char		name[32];	/* device/driver name */
+};
+
+/* bignum parameter, in packed bytes, ... */
+struct crparam {
+	caddr_t		crp_p;
+	u_int		crp_nbits;
+};
+
+#define CRK_MAXPARAM	8
+
+struct crypt_kop {
+	u_int		crk_op;		/* ie. CRK_MOD_EXP or other */
+	u_int		crk_status;	/* return status */
+	u_short		crk_iparams;	/* # of input parameters */
+	u_short		crk_oparams;	/* # of output parameters */
+	u_int		crk_crid;	/* NB: only used by CIOCKEY2 (rw) */
+	struct crparam	crk_param[CRK_MAXPARAM];
+};
+#define CRK_ALGORITM_MIN	0
+#define CRK_MOD_EXP		0
+#define CRK_MOD_EXP_CRT		1
+#define CRK_DSA_SIGN		2
+#define CRK_DSA_VERIFY		3
+#define CRK_DH_COMPUTE_KEY	4
+#define CRK_ALGORITHM_MAX	4 /* Keep updated - see below */
+
+#define CRF_MOD_EXP		(1 << CRK_MOD_EXP)
+#define CRF_MOD_EXP_CRT		(1 << CRK_MOD_EXP_CRT)
+#define CRF_DSA_SIGN		(1 << CRK_DSA_SIGN)
+#define CRF_DSA_VERIFY		(1 << CRK_DSA_VERIFY)
+#define CRF_DH_COMPUTE_KEY	(1 << CRK_DH_COMPUTE_KEY)
+
+/*
+ * done against open of /dev/crypto, to get a cloned descriptor.
+ * Please use F_SETFD against the cloned descriptor.
+ */
+#define CRIOGET		_IOWR('c', 100, u_int32_t)
+#define CRIOASYMFEAT	CIOCASYMFEAT
+#define CRIOFINDDEV	CIOCFINDDEV
+
+/* the following are done against the cloned descriptor */
+#define CIOCGSESSION	_IOWR('c', 101, struct session_op)
+#define CIOCFSESSION	_IOW('c', 102, u_int32_t)
+#define CIOCCRYPT	_IOWR('c', 103, struct crypt_op)
+#define CIOCKEY		_IOWR('c', 104, struct crypt_kop)
+#define CIOCASYMFEAT	_IOR('c', 105, u_int32_t)
+#define CIOCGSESSION2	_IOWR('c', 106, struct session2_op)
+#define CIOCKEY2	_IOWR('c', 107, struct crypt_kop)
+#define CIOCFINDDEV	_IOWR('c', 108, struct crypt_find_op)
+
+struct cryptotstat {
+	struct timespec	acc;		/* total accumulated time */
+	struct timespec	min;		/* min time */
+	struct timespec	max;		/* max time */
+	u_int32_t	count;		/* number of observations */
+};
+
+struct cryptostats {
+	u_int32_t	cs_ops;		/* symmetric crypto ops submitted */
+	u_int32_t	cs_errs;	/* symmetric crypto ops that failed */
+	u_int32_t	cs_kops;	/* asymetric/key ops submitted */
+	u_int32_t	cs_kerrs;	/* asymetric/key ops that failed */
+	u_int32_t	cs_intrs;	/* crypto swi thread activations */
+	u_int32_t	cs_rets;	/* crypto return thread activations */
+	u_int32_t	cs_blocks;	/* symmetric op driver block */
+	u_int32_t	cs_kblocks;	/* symmetric op driver block */
+	/*
+	 * When CRYPTO_TIMING is defined at compile time and the
+	 * sysctl debug.crypto is set to 1, the crypto system will
+	 * accumulate statistics about how long it takes to process
+	 * crypto requests at various points during processing.
+	 */
+	struct cryptotstat cs_invoke;	/* crypto_dipsatch -> crypto_invoke */
+	struct cryptotstat cs_done;	/* crypto_invoke -> crypto_done */
+	struct cryptotstat cs_cb;	/* crypto_done -> callback */
+	struct cryptotstat cs_finis;	/* callback -> callback return */
+
+	u_int32_t	cs_drops;		/* crypto ops dropped due to congestion */
+};
+
+#ifdef __KERNEL__
+
+/* Standard initialization structure beginning */
+struct cryptoini {
+	int		cri_alg;	/* Algorithm to use */
+	int		cri_klen;	/* Key length, in bits */
+	int		cri_mlen;	/* Number of bytes we want from the
+					   entire hash. 0 means all. */
+	caddr_t		cri_key;	/* key to use */
+	u_int8_t	cri_iv[EALG_MAX_BLOCK_LEN];	/* IV to use */
+	struct cryptoini *cri_next;
+};
+
+/* Describe boundaries of a single crypto operation */
+struct cryptodesc {
+	int		crd_skip;	/* How many bytes to ignore from start */
+	int		crd_len;	/* How many bytes to process */
+	int		crd_inject;	/* Where to inject results, if applicable */
+	int		crd_flags;
+
+#define CRD_F_ENCRYPT		0x01	/* Set when doing encryption */
+#define CRD_F_IV_PRESENT	0x02	/* When encrypting, IV is already in
+					   place, so don't copy. */
+#define CRD_F_IV_EXPLICIT	0x04	/* IV explicitly provided */
+#define CRD_F_DSA_SHA_NEEDED	0x08	/* Compute SHA-1 of buffer for DSA */
+#define CRD_F_KEY_EXPLICIT	0x10	/* Key explicitly provided */
+#define CRD_F_COMP		0x0f    /* Set when doing compression */
+
+	struct cryptoini	CRD_INI; /* Initialization/context data */
+#define crd_iv		CRD_INI.cri_iv
+#define crd_key		CRD_INI.cri_key
+#define crd_alg		CRD_INI.cri_alg
+#define crd_klen	CRD_INI.cri_klen
+
+	struct cryptodesc *crd_next;
+};
+
+/* Structure describing complete operation */
+struct cryptop {
+	struct list_head crp_next;
+	wait_queue_head_t crp_waitq;
+
+	u_int64_t	crp_sid;	/* Session ID */
+	int		crp_ilen;	/* Input data total length */
+	int		crp_olen;	/* Result total length */
+
+	int		crp_etype;	/*
+					 * Error type (zero means no error).
+					 * All error codes except EAGAIN
+					 * indicate possible data corruption (as in,
+					 * the data have been touched). On all
+					 * errors, the crp_sid may have changed
+					 * (reset to a new one), so the caller
+					 * should always check and use the new
+					 * value on future requests.
+					 */
+	int		crp_flags;
+
+#define CRYPTO_F_SKBUF		0x0001	/* Input/output are skbuf chains */
+#define CRYPTO_F_IOV		0x0002	/* Input/output are uio */
+#define CRYPTO_F_REL		0x0004	/* Must return data in same place */
+#define CRYPTO_F_BATCH		0x0008	/* Batch op if possible */
+#define CRYPTO_F_CBIMM		0x0010	/* Do callback immediately */
+#define CRYPTO_F_DONE		0x0020	/* Operation completed */
+#define CRYPTO_F_CBIFSYNC	0x0040	/* Do CBIMM if op is synchronous */
+
+	caddr_t		crp_buf;	/* Data to be processed */
+	caddr_t		crp_opaque;	/* Opaque pointer, passed along */
+	struct cryptodesc *crp_desc;	/* Linked list of processing descriptors */
+
+	int (*crp_callback)(struct cryptop *); /* Callback function */
+};
+
+#define CRYPTO_BUF_CONTIG	0x0
+#define CRYPTO_BUF_IOV		0x1
+#define CRYPTO_BUF_SKBUF		0x2
+
+#define CRYPTO_OP_DECRYPT	0x0
+#define CRYPTO_OP_ENCRYPT	0x1
+
+/*
+ * Hints passed to process methods.
+ */
+#define CRYPTO_HINT_MORE	0x1	/* more ops coming shortly */
+
+struct cryptkop {
+	struct list_head krp_next;
+	wait_queue_head_t krp_waitq;
+
+	int		krp_flags;
+#define CRYPTO_KF_DONE		0x0001	/* Operation completed */
+#define CRYPTO_KF_CBIMM		0x0002	/* Do callback immediately */
+
+	u_int		krp_op;		/* ie. CRK_MOD_EXP or other */
+	u_int		krp_status;	/* return status */
+	u_short		krp_iparams;	/* # of input parameters */
+	u_short		krp_oparams;	/* # of output parameters */
+	u_int		krp_crid;	/* desired device, etc. */
+	u_int32_t	krp_hid;
+	struct crparam	krp_param[CRK_MAXPARAM];	/* kvm */
+	int		(*krp_callback)(struct cryptkop *);
+};
+
+#include <ocf-compat.h>
+
+/*
+ * Session ids are 64 bits.  The lower 32 bits contain a "local id" which
+ * is a driver-private session identifier.  The upper 32 bits contain a
+ * "hardware id" used by the core crypto code to identify the driver and
+ * a copy of the driver's capabilities that can be used by client code to
+ * optimize operation.
+ */
+#define CRYPTO_SESID2HID(_sid)	(((_sid) >> 32) & 0x00ffffff)
+#define CRYPTO_SESID2CAPS(_sid)	(((_sid) >> 32) & 0xff000000)
+#define CRYPTO_SESID2LID(_sid)	(((u_int32_t) (_sid)) & 0xffffffff)
+
+extern	int crypto_newsession(u_int64_t *sid, struct cryptoini *cri, int hard);
+extern	int crypto_freesession(u_int64_t sid);
+#define CRYPTOCAP_F_HARDWARE	CRYPTO_FLAG_HARDWARE
+#define CRYPTOCAP_F_SOFTWARE	CRYPTO_FLAG_SOFTWARE
+#define CRYPTOCAP_F_SYNC	0x04000000	/* operates synchronously */
+extern	int32_t crypto_get_driverid(device_t dev, int flags);
+extern	int crypto_find_driver(const char *);
+extern	device_t crypto_find_device_byhid(int hid);
+extern	int crypto_getcaps(int hid);
+extern	int crypto_register(u_int32_t driverid, int alg, u_int16_t maxoplen,
+	    u_int32_t flags);
+extern	int crypto_kregister(u_int32_t, int, u_int32_t);
+extern	int crypto_unregister(u_int32_t driverid, int alg);
+extern	int crypto_unregister_all(u_int32_t driverid);
+extern	int crypto_dispatch(struct cryptop *crp);
+extern	int crypto_kdispatch(struct cryptkop *);
+#define CRYPTO_SYMQ	0x1
+#define CRYPTO_ASYMQ	0x2
+extern	int crypto_unblock(u_int32_t, int);
+extern	void crypto_done(struct cryptop *crp);
+extern	void crypto_kdone(struct cryptkop *);
+extern	int crypto_getfeat(int *);
+
+extern	void crypto_freereq(struct cryptop *crp);
+extern	struct cryptop *crypto_getreq(int num);
+
+extern  int crypto_usercrypto;      /* userland may do crypto requests */
+extern  int crypto_userasymcrypto;  /* userland may do asym crypto reqs */
+extern  int crypto_devallowsoft;    /* only use hardware crypto */
+
+/*
+ * random number support,  crypto_unregister_all will unregister
+ */
+extern int crypto_rregister(u_int32_t driverid,
+		int (*read_random)(void *arg, u_int32_t *buf, int len), void *arg);
+extern int crypto_runregister_all(u_int32_t driverid);
+
+/*
+ * Crypto-related utility routines used mainly by drivers.
+ *
+ * XXX these don't really belong here; but for now they're
+ *     kept apart from the rest of the system.
+ */
+struct uio;
+extern	void cuio_copydata(struct uio* uio, int off, int len, caddr_t cp);
+extern	void cuio_copyback(struct uio* uio, int off, int len, caddr_t cp);
+extern	struct iovec *cuio_getptr(struct uio *uio, int loc, int *off);
+
+extern	void crypto_copyback(int flags, caddr_t buf, int off, int size,
+	    caddr_t in);
+extern	void crypto_copydata(int flags, caddr_t buf, int off, int size,
+	    caddr_t out);
+extern	int crypto_apply(int flags, caddr_t buf, int off, int len,
+	    int (*f)(void *, void *, u_int), void *arg);
+
+#endif /* __KERNEL__ */
+#endif /* _CRYPTO_CRYPTO_H_ */
diff -Nur linux-2.6.29.1.orig/crypto/ocf/cryptosoft.c linux-2.6.29.1/crypto/ocf/cryptosoft.c
--- linux-2.6.29.1.orig/crypto/ocf/cryptosoft.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/cryptosoft.c	2009-04-20 20:01:21.428551297 +0200
@@ -0,0 +1,898 @@
+/*
+ * An OCF module that uses the linux kernel cryptoapi, based on the
+ * original cryptosoft for BSD by Angelos D. Keromytis (angelos@cis.upenn.edu)
+ * but is mostly unrecognisable,
+ *
+ * Written by David McCullough <david_mccullough@securecomputing.com>
+ * Copyright (C) 2004-2007 David McCullough
+ * Copyright (C) 2004-2005 Intel Corporation.
+ *
+ * LICENSE TERMS
+ *
+ * The free distribution and use of this software in both source and binary
+ * form is allowed (with or without changes) provided that:
+ *
+ *   1. distributions of this source code include the above copyright
+ *      notice, this list of conditions and the following disclaimer;
+ *
+ *   2. distributions in binary form include the above copyright
+ *      notice, this list of conditions and the following disclaimer
+ *      in the documentation and/or other associated materials;
+ *
+ *   3. the copyright holder's name is not used to endorse products
+ *      built using this software without specific written permission.
+ *
+ * ALTERNATIVELY, provided that this notice is retained in full, this product
+ * may be distributed under the terms of the GNU General Public License (GPL),
+ * in which case the provisions of the GPL apply INSTEAD OF those given above.
+ *
+ * DISCLAIMER
+ *
+ * This software is provided 'as is' with no explicit or implied warranties
+ * in respect of its properties, including, but not limited to, correctness
+ * and/or fitness for purpose.
+ * ---------------------------------------------------------------------------
+ */
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/wait.h>
+#include <linux/crypto.h>
+#include <linux/mm.h>
+#include <linux/skbuff.h>
+#include <linux/random.h>
+#include <linux/scatterlist.h>
+
+#include <cryptodev.h>
+#include <uio.h>
+
+struct {
+	softc_device_decl	sc_dev;
+} swcr_softc;
+
+#define offset_in_page(p) ((unsigned long)(p) & ~PAGE_MASK)
+
+/* Software session entry */
+
+#define SW_TYPE_CIPHER		0
+#define SW_TYPE_HMAC		1
+#define SW_TYPE_AUTH2		2
+#define SW_TYPE_HASH		3
+#define SW_TYPE_COMP		4
+#define SW_TYPE_BLKCIPHER	5
+
+struct swcr_data {
+	int					sw_type;
+	int					sw_alg;
+	struct crypto_tfm	*sw_tfm;
+	union {
+		struct {
+			char *sw_key;
+			int  sw_klen;
+			int  sw_mlen;
+		} hmac;
+		void *sw_comp_buf;
+	} u;
+	struct swcr_data	*sw_next;
+};
+
+#ifndef CRYPTO_TFM_MODE_CBC
+/*
+ * As of linux-2.6.21 this is no longer defined, and presumably no longer
+ * needed to be passed into the crypto core code.
+ */
+#define	CRYPTO_TFM_MODE_CBC	0
+#define	CRYPTO_TFM_MODE_ECB	0
+#endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
+	/*
+	 * Linux 2.6.19 introduced a new Crypto API, setup macro's to convert new
+	 * API into old API.
+	 */
+
+	/* Symmetric/Block Cipher */
+	struct blkcipher_desc
+	{
+		struct crypto_tfm *tfm;
+		void *info;
+	};
+	#define ecb(X)								#X
+	#define cbc(X)								#X
+	#define crypto_has_blkcipher(X, Y, Z)		crypto_alg_available(X, 0)
+	#define crypto_blkcipher_cast(X)			X
+	#define crypto_blkcipher_tfm(X)				X
+	#define crypto_alloc_blkcipher(X, Y, Z)		crypto_alloc_tfm(X, mode)
+	#define crypto_blkcipher_ivsize(X)			crypto_tfm_alg_ivsize(X)
+	#define crypto_blkcipher_blocksize(X)		crypto_tfm_alg_blocksize(X)
+	#define crypto_blkcipher_setkey(X, Y, Z)	crypto_cipher_setkey(X, Y, Z)
+	#define crypto_blkcipher_encrypt_iv(W, X, Y, Z)	\
+				crypto_cipher_encrypt_iv((W)->tfm, X, Y, Z, (u8 *)((W)->info))
+	#define crypto_blkcipher_decrypt_iv(W, X, Y, Z)	\
+				crypto_cipher_decrypt_iv((W)->tfm, X, Y, Z, (u8 *)((W)->info))
+
+	/* Hash/HMAC/Digest */
+	struct hash_desc
+	{
+		struct crypto_tfm *tfm;
+	};
+	#define hmac(X)							#X
+	#define crypto_has_hash(X, Y, Z)		crypto_alg_available(X, 0)
+	#define crypto_hash_cast(X)				X
+	#define crypto_hash_tfm(X)				X
+	#define crypto_alloc_hash(X, Y, Z)		crypto_alloc_tfm(X, mode)
+	#define crypto_hash_digestsize(X)		crypto_tfm_alg_digestsize(X)
+	#define crypto_hash_digest(W, X, Y, Z)	\
+				crypto_digest_digest((W)->tfm, X, sg_num, Z)
+
+	/* Asymmetric Cipher */
+	#define crypto_has_cipher(X, Y, Z)		crypto_alg_available(X, 0)
+
+	/* Compression */
+	#define crypto_has_comp(X, Y, Z)		crypto_alg_available(X, 0)
+	#define crypto_comp_tfm(X)				X
+	#define crypto_comp_cast(X)				X
+	#define crypto_alloc_comp(X, Y, Z)		crypto_alloc_tfm(X, mode)
+#else
+	#define ecb(X)	"ecb(" #X ")"
+	#define cbc(X)	"cbc(" #X ")"
+	#define hmac(X)	"hmac(" #X ")"
+#endif /* if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) */
+
+struct crypto_details
+{
+	char *alg_name;
+	int mode;
+	int sw_type;
+};
+
+/*
+ * This needs to be kept updated with CRYPTO_xxx list (cryptodev.h).
+ * If the Algorithm is not supported, then insert a {NULL, 0, 0} entry.
+ *
+ * IMPORTANT: The index to the array IS CRYPTO_xxx.
+ */
+static struct crypto_details crypto_details[CRYPTO_ALGORITHM_MAX + 1] = {
+	{ NULL,              0,                   0 },
+	/* CRYPTO_xxx index starts at 1 */
+	{ cbc(des),          CRYPTO_TFM_MODE_CBC, SW_TYPE_BLKCIPHER },
+	{ cbc(des3_ede),     CRYPTO_TFM_MODE_CBC, SW_TYPE_BLKCIPHER },
+	{ cbc(blowfish),     CRYPTO_TFM_MODE_CBC, SW_TYPE_BLKCIPHER },
+	{ cbc(cast5),        CRYPTO_TFM_MODE_CBC, SW_TYPE_BLKCIPHER },
+	{ cbc(skipjack),     CRYPTO_TFM_MODE_CBC, SW_TYPE_BLKCIPHER },
+	{ hmac(md5),         0,                   SW_TYPE_HMAC },
+	{ hmac(sha1),        0,                   SW_TYPE_HMAC },
+	{ hmac(ripemd160),   0,                   SW_TYPE_HMAC },
+	{ "md5-kpdk??",      0,                   SW_TYPE_HASH },
+	{ "sha1-kpdk??",     0,                   SW_TYPE_HASH },
+	{ cbc(aes),          CRYPTO_TFM_MODE_CBC, SW_TYPE_BLKCIPHER },
+	{ ecb(arc4),         CRYPTO_TFM_MODE_ECB, SW_TYPE_BLKCIPHER },
+	{ "md5",             0,                   SW_TYPE_HASH },
+	{ "sha1",            0,                   SW_TYPE_HASH },
+	{ hmac(digest_null), 0,                   SW_TYPE_HMAC },
+	{ cbc(cipher_null),  CRYPTO_TFM_MODE_CBC, SW_TYPE_BLKCIPHER },
+	{ "deflate",         0,                   SW_TYPE_COMP },
+	{ hmac(sha256),      0,                   SW_TYPE_HMAC },
+	{ hmac(sha384),      0,                   SW_TYPE_HMAC },
+	{ hmac(sha512),      0,                   SW_TYPE_HMAC },
+	{ cbc(camellia),     CRYPTO_TFM_MODE_CBC, SW_TYPE_BLKCIPHER },
+	{ "sha256",          0,                   SW_TYPE_HASH },
+	{ "sha384",          0,                   SW_TYPE_HASH },
+	{ "sha512",          0,                   SW_TYPE_HASH },
+	{ "ripemd160",       0,                   SW_TYPE_HASH },
+};
+
+int32_t swcr_id = -1;
+module_param(swcr_id, int, 0444);
+MODULE_PARM_DESC(swcr_id, "Read-Only OCF ID for cryptosoft driver");
+
+int swcr_fail_if_compression_grows = 1;
+module_param(swcr_fail_if_compression_grows, int, 0644);
+MODULE_PARM_DESC(swcr_fail_if_compression_grows,
+                "Treat compression that results in more data as a failure");
+
+static struct swcr_data **swcr_sessions = NULL;
+static u_int32_t swcr_sesnum = 0;
+
+static	int swcr_process(device_t, struct cryptop *, int);
+static	int swcr_newsession(device_t, u_int32_t *, struct cryptoini *);
+static	int swcr_freesession(device_t, u_int64_t);
+
+static device_method_t swcr_methods = {
+	/* crypto device methods */
+	DEVMETHOD(cryptodev_newsession,	swcr_newsession),
+	DEVMETHOD(cryptodev_freesession,swcr_freesession),
+	DEVMETHOD(cryptodev_process,	swcr_process),
+};
+
+#define debug swcr_debug
+int swcr_debug = 0;
+module_param(swcr_debug, int, 0644);
+MODULE_PARM_DESC(swcr_debug, "Enable debug");
+
+/*
+ * Generate a new software session.
+ */
+static int
+swcr_newsession(device_t dev, u_int32_t *sid, struct cryptoini *cri)
+{
+	struct swcr_data **swd;
+	u_int32_t i;
+	int error;
+	char *algo;
+	int mode, sw_type;
+
+	dprintk("%s()\n", __FUNCTION__);
+	if (sid == NULL || cri == NULL) {
+		dprintk("%s,%d - EINVAL\n", __FILE__, __LINE__);
+		return EINVAL;
+	}
+
+	if (swcr_sessions) {
+		for (i = 1; i < swcr_sesnum; i++)
+			if (swcr_sessions[i] == NULL)
+				break;
+	} else
+		i = 1;		/* NB: to silence compiler warning */
+
+	if (swcr_sessions == NULL || i == swcr_sesnum) {
+		if (swcr_sessions == NULL) {
+			i = 1; /* We leave swcr_sessions[0] empty */
+			swcr_sesnum = CRYPTO_SW_SESSIONS;
+		} else
+			swcr_sesnum *= 2;
+
+		swd = kmalloc(swcr_sesnum * sizeof(struct swcr_data *), SLAB_ATOMIC);
+		if (swd == NULL) {
+			/* Reset session number */
+			if (swcr_sesnum == CRYPTO_SW_SESSIONS)
+				swcr_sesnum = 0;
+			else
+				swcr_sesnum /= 2;
+			dprintk("%s,%d: ENOBUFS\n", __FILE__, __LINE__);
+			return ENOBUFS;
+		}
+		memset(swd, 0, swcr_sesnum * sizeof(struct swcr_data *));
+
+		/* Copy existing sessions */
+		if (swcr_sessions) {
+			memcpy(swd, swcr_sessions,
+			    (swcr_sesnum / 2) * sizeof(struct swcr_data *));
+			kfree(swcr_sessions);
+		}
+
+		swcr_sessions = swd;
+	}
+
+	swd = &swcr_sessions[i];
+	*sid = i;
+
+	while (cri) {
+		*swd = (struct swcr_data *) kmalloc(sizeof(struct swcr_data),
+				SLAB_ATOMIC);
+		if (*swd == NULL) {
+			swcr_freesession(NULL, i);
+			dprintk("%s,%d: ENOBUFS\n", __FILE__, __LINE__);
+			return ENOBUFS;
+		}
+		memset(*swd, 0, sizeof(struct swcr_data));
+
+		if (cri->cri_alg > CRYPTO_ALGORITHM_MAX) {
+			printk("cryptosoft: Unknown algorithm 0x%x\n", cri->cri_alg);
+			swcr_freesession(NULL, i);
+			return EINVAL;
+		}
+
+		algo = crypto_details[cri->cri_alg].alg_name;
+		if (!algo || !*algo) {
+			printk("cryptosoft: Unsupported algorithm 0x%x\n", cri->cri_alg);
+			swcr_freesession(NULL, i);
+			return EINVAL;
+		}
+
+		mode = crypto_details[cri->cri_alg].mode;
+		sw_type = crypto_details[cri->cri_alg].sw_type;
+
+		/* Algorithm specific configuration */
+		switch (cri->cri_alg) {
+		case CRYPTO_NULL_CBC:
+			cri->cri_klen = 0; /* make it work with crypto API */
+			break;
+		default:
+			break;
+		}
+
+		if (sw_type == SW_TYPE_BLKCIPHER) {
+			dprintk("%s crypto_alloc_blkcipher(%s, 0x%x)\n", __FUNCTION__,
+					algo, mode);
+
+			(*swd)->sw_tfm = crypto_blkcipher_tfm(
+								crypto_alloc_blkcipher(algo, 0,
+									CRYPTO_ALG_ASYNC));
+			if (!(*swd)->sw_tfm) {
+				dprintk("cryptosoft: crypto_alloc_blkcipher failed(%s,0x%x)\n",
+						algo,mode);
+				swcr_freesession(NULL, i);
+				return EINVAL;
+			}
+
+			if (debug) {
+				dprintk("%s key:cri->cri_klen=%d,(cri->cri_klen + 7)/8=%d",
+						__FUNCTION__,cri->cri_klen,(cri->cri_klen + 7)/8);
+				for (i = 0; i < (cri->cri_klen + 7) / 8; i++)
+				{
+					dprintk("%s0x%x", (i % 8) ? " " : "\n    ",cri->cri_key[i]);
+				}
+				dprintk("\n");
+			}
+			error = crypto_blkcipher_setkey(
+						crypto_blkcipher_cast((*swd)->sw_tfm), cri->cri_key,
+							(cri->cri_klen + 7) / 8);
+			if (error) {
+				printk("cryptosoft: setkey failed %d (crt_flags=0x%x)\n", error,
+						(*swd)->sw_tfm->crt_flags);
+				swcr_freesession(NULL, i);
+				return error;
+			}
+		} else if (sw_type == SW_TYPE_HMAC || sw_type == SW_TYPE_HASH) {
+			dprintk("%s crypto_alloc_hash(%s, 0x%x)\n", __FUNCTION__,
+					algo, mode);
+
+			(*swd)->sw_tfm = crypto_hash_tfm(
+								crypto_alloc_hash(algo, 0, CRYPTO_ALG_ASYNC));
+
+			if (!(*swd)->sw_tfm) {
+				dprintk("cryptosoft: crypto_alloc_hash failed(%s,0x%x)\n",
+						algo, mode);
+				swcr_freesession(NULL, i);
+				return EINVAL;
+			}
+
+			(*swd)->u.hmac.sw_klen = (cri->cri_klen + 7) / 8;
+			(*swd)->u.hmac.sw_key = (char *)kmalloc((*swd)->u.hmac.sw_klen,
+				SLAB_ATOMIC);
+			if ((*swd)->u.hmac.sw_key == NULL) {
+				swcr_freesession(NULL, i);
+				dprintk("%s,%d: ENOBUFS\n", __FILE__, __LINE__);
+				return ENOBUFS;
+			}
+			memcpy((*swd)->u.hmac.sw_key, cri->cri_key, (*swd)->u.hmac.sw_klen);
+			if (cri->cri_mlen) {
+				(*swd)->u.hmac.sw_mlen = cri->cri_mlen;
+			} else {
+				(*swd)->u.hmac.sw_mlen =
+						crypto_hash_digestsize(
+								crypto_hash_cast((*swd)->sw_tfm));
+			}
+		} else if (sw_type == SW_TYPE_COMP) {
+			(*swd)->sw_tfm = crypto_comp_tfm(
+					crypto_alloc_comp(algo, 0, CRYPTO_ALG_ASYNC));
+			if (!(*swd)->sw_tfm) {
+				dprintk("cryptosoft: crypto_alloc_comp failed(%s,0x%x)\n",
+						algo, mode);
+				swcr_freesession(NULL, i);
+				return EINVAL;
+			}
+			(*swd)->u.sw_comp_buf = kmalloc(CRYPTO_MAX_DATA_LEN, SLAB_ATOMIC);
+			if ((*swd)->u.sw_comp_buf == NULL) {
+				swcr_freesession(NULL, i);
+				dprintk("%s,%d: ENOBUFS\n", __FILE__, __LINE__);
+				return ENOBUFS;
+			}
+		} else {
+			printk("cryptosoft: Unhandled sw_type %d\n", sw_type);
+			swcr_freesession(NULL, i);
+			return EINVAL;
+		}
+
+		(*swd)->sw_alg = cri->cri_alg;
+		(*swd)->sw_type = sw_type;
+
+		cri = cri->cri_next;
+		swd = &((*swd)->sw_next);
+	}
+	return 0;
+}
+
+/*
+ * Free a session.
+ */
+static int
+swcr_freesession(device_t dev, u_int64_t tid)
+{
+	struct swcr_data *swd;
+	u_int32_t sid = CRYPTO_SESID2LID(tid);
+
+	dprintk("%s()\n", __FUNCTION__);
+	if (sid > swcr_sesnum || swcr_sessions == NULL ||
+			swcr_sessions[sid] == NULL) {
+		dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
+		return(EINVAL);
+	}
+
+	/* Silently accept and return */
+	if (sid == 0)
+		return(0);
+
+	while ((swd = swcr_sessions[sid]) != NULL) {
+		swcr_sessions[sid] = swd->sw_next;
+		if (swd->sw_tfm)
+			crypto_free_tfm(swd->sw_tfm);
+		if (swd->sw_type == SW_TYPE_COMP) {
+			if (swd->u.sw_comp_buf)
+				kfree(swd->u.sw_comp_buf);
+		} else {
+			if (swd->u.hmac.sw_key)
+				kfree(swd->u.hmac.sw_key);
+		}
+		kfree(swd);
+	}
+	return 0;
+}
+
+/*
+ * Process a software request.
+ */
+static int
+swcr_process(device_t dev, struct cryptop *crp, int hint)
+{
+	struct cryptodesc *crd;
+	struct swcr_data *sw;
+	u_int32_t lid;
+#define SCATTERLIST_MAX 16
+	struct scatterlist sg[SCATTERLIST_MAX];
+	int sg_num, sg_len, skip;
+	struct sk_buff *skb = NULL;
+	struct uio *uiop = NULL;
+
+	dprintk("%s()\n", __FUNCTION__);
+	/* Sanity check */
+	if (crp == NULL) {
+		dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
+		return EINVAL;
+	}
+
+	crp->crp_etype = 0;
+
+	if (crp->crp_desc == NULL || crp->crp_buf == NULL) {
+		dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
+		crp->crp_etype = EINVAL;
+		goto done;
+	}
+
+	lid = crp->crp_sid & 0xffffffff;
+	if (lid >= swcr_sesnum || lid == 0 || swcr_sessions == NULL ||
+			swcr_sessions[lid] == NULL) {
+		crp->crp_etype = ENOENT;
+		dprintk("%s,%d: ENOENT\n", __FILE__, __LINE__);
+		goto done;
+	}
+
+	/*
+	 * do some error checking outside of the loop for SKB and IOV processing
+	 * this leaves us with valid skb or uiop pointers for later
+	 */
+	if (crp->crp_flags & CRYPTO_F_SKBUF) {
+		skb = (struct sk_buff *) crp->crp_buf;
+		if (skb_shinfo(skb)->nr_frags >= SCATTERLIST_MAX) {
+			printk("%s,%d: %d nr_frags > SCATTERLIST_MAX", __FILE__, __LINE__,
+					skb_shinfo(skb)->nr_frags);
+			goto done;
+		}
+	} else if (crp->crp_flags & CRYPTO_F_IOV) {
+		uiop = (struct uio *) crp->crp_buf;
+		if (uiop->uio_iovcnt > SCATTERLIST_MAX) {
+			printk("%s,%d: %d uio_iovcnt > SCATTERLIST_MAX", __FILE__, __LINE__,
+					uiop->uio_iovcnt);
+			goto done;
+		}
+	}
+
+	/* Go through crypto descriptors, processing as we go */
+	for (crd = crp->crp_desc; crd; crd = crd->crd_next) {
+		/*
+		 * Find the crypto context.
+		 *
+		 * XXX Note that the logic here prevents us from having
+		 * XXX the same algorithm multiple times in a session
+		 * XXX (or rather, we can but it won't give us the right
+		 * XXX results). To do that, we'd need some way of differentiating
+		 * XXX between the various instances of an algorithm (so we can
+		 * XXX locate the correct crypto context).
+		 */
+		for (sw = swcr_sessions[lid]; sw && sw->sw_alg != crd->crd_alg;
+				sw = sw->sw_next)
+			;
+
+		/* No such context ? */
+		if (sw == NULL) {
+			crp->crp_etype = EINVAL;
+			dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
+			goto done;
+		}
+
+		skip = crd->crd_skip;
+
+		/*
+		 * setup the SG list skip from the start of the buffer
+		 */
+		memset(sg, 0, sizeof(sg));
+		if (crp->crp_flags & CRYPTO_F_SKBUF) {
+			int i, len;
+
+			sg_num = 0;
+			sg_len = 0;
+
+			if (skip < skb_headlen(skb)) {
+				len = skb_headlen(skb) - skip;
+				if (len + sg_len > crd->crd_len)
+					len = crd->crd_len - sg_len;
+				sg_set_page(&sg[sg_num],
+					virt_to_page(skb->data + skip), len,
+					offset_in_page(skb->data + skip));
+				sg_len += len;
+				sg_num++;
+				skip = 0;
+			} else
+				skip -= skb_headlen(skb);
+
+			for (i = 0; sg_len < crd->crd_len &&
+						i < skb_shinfo(skb)->nr_frags &&
+						sg_num < SCATTERLIST_MAX; i++) {
+				if (skip < skb_shinfo(skb)->frags[i].size) {
+					len = skb_shinfo(skb)->frags[i].size - skip;
+					if (len + sg_len > crd->crd_len)
+						len = crd->crd_len - sg_len;
+					sg_set_page(&sg[sg_num],
+						skb_shinfo(skb)->frags[i].page,
+						len,
+						skb_shinfo(skb)->frags[i].page_offset + skip);
+					sg_len += len;
+					sg_num++;
+					skip = 0;
+				} else
+					skip -= skb_shinfo(skb)->frags[i].size;
+			}
+		} else if (crp->crp_flags & CRYPTO_F_IOV) {
+			int len;
+
+			sg_len = 0;
+			for (sg_num = 0; sg_len <= crd->crd_len &&
+					sg_num < uiop->uio_iovcnt &&
+					sg_num < SCATTERLIST_MAX; sg_num++) {
+				if (skip <= uiop->uio_iov[sg_num].iov_len) {
+					len = uiop->uio_iov[sg_num].iov_len - skip;
+					if (len + sg_len > crd->crd_len)
+						len = crd->crd_len - sg_len;
+					sg_set_page(&sg[sg_num],
+						virt_to_page(uiop->uio_iov[sg_num].iov_base+skip),
+						len,
+						offset_in_page(uiop->uio_iov[sg_num].iov_base+skip));
+					sg_len += len;
+					skip = 0;
+				} else 
+					skip -= uiop->uio_iov[sg_num].iov_len;
+			}
+		} else {
+			sg_len = (crp->crp_ilen - skip);
+			if (sg_len > crd->crd_len)
+				sg_len = crd->crd_len;
+			sg_set_page(&sg[0], virt_to_page(crp->crp_buf + skip),
+				sg_len, offset_in_page(crp->crp_buf + skip));
+			sg_num = 1;
+		}
+
+
+		switch (sw->sw_type) {
+		case SW_TYPE_BLKCIPHER: {
+			unsigned char iv[EALG_MAX_BLOCK_LEN];
+			unsigned char *ivp = iv;
+			int ivsize = 
+				crypto_blkcipher_ivsize(crypto_blkcipher_cast(sw->sw_tfm));
+			struct blkcipher_desc desc;
+
+			if (sg_len < crypto_blkcipher_blocksize(
+					crypto_blkcipher_cast(sw->sw_tfm))) {
+				crp->crp_etype = EINVAL;
+				dprintk("%s,%d: EINVAL len %d < %d\n", __FILE__, __LINE__,
+						sg_len, crypto_blkcipher_blocksize(
+							crypto_blkcipher_cast(sw->sw_tfm)));
+				goto done;
+			}
+
+			if (ivsize > sizeof(iv)) {
+				crp->crp_etype = EINVAL;
+				dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
+				goto done;
+			}
+
+			if (crd->crd_flags & CRD_F_KEY_EXPLICIT) {
+				int i, error;
+
+				if (debug) {
+					dprintk("%s key:", __FUNCTION__);
+					for (i = 0; i < (crd->crd_klen + 7) / 8; i++)
+						dprintk("%s0x%x", (i % 8) ? " " : "\n    ",
+								crd->crd_key[i]);
+					dprintk("\n");
+				}
+				error = crypto_blkcipher_setkey(
+							crypto_blkcipher_cast(sw->sw_tfm), crd->crd_key,
+							(crd->crd_klen + 7) / 8);
+				if (error) {
+					dprintk("cryptosoft: setkey failed %d (crt_flags=0x%x)\n",
+							error, sw->sw_tfm->crt_flags);
+					crp->crp_etype = -error;
+				}
+			}
+
+			memset(&desc, 0, sizeof(desc));
+			desc.tfm = crypto_blkcipher_cast(sw->sw_tfm);
+
+			if (crd->crd_flags & CRD_F_ENCRYPT) { /* encrypt */
+
+				if (crd->crd_flags & CRD_F_IV_EXPLICIT) {
+					ivp = crd->crd_iv;
+				} else {
+					get_random_bytes(ivp, ivsize);
+				}
+				/*
+				 * do we have to copy the IV back to the buffer ?
+				 */
+				if ((crd->crd_flags & CRD_F_IV_PRESENT) == 0) {
+					crypto_copyback(crp->crp_flags, crp->crp_buf,
+							crd->crd_inject, ivsize, (caddr_t)ivp);
+				}
+				desc.info = ivp;
+				crypto_blkcipher_encrypt_iv(&desc, sg, sg, sg_len);
+
+			} else { /*decrypt */
+
+				if (crd->crd_flags & CRD_F_IV_EXPLICIT) {
+					ivp = crd->crd_iv;
+				} else {
+					crypto_copydata(crp->crp_flags, crp->crp_buf,
+							crd->crd_inject, ivsize, (caddr_t)ivp);
+				}
+				desc.info = ivp;
+				crypto_blkcipher_decrypt_iv(&desc, sg, sg, sg_len);
+			}
+			} break;
+		case SW_TYPE_HMAC:
+		case SW_TYPE_HASH:
+			{
+			char result[HASH_MAX_LEN];
+			struct hash_desc desc;
+
+			/* check we have room for the result */
+			if (crp->crp_ilen - crd->crd_inject < sw->u.hmac.sw_mlen) {
+				dprintk(
+			"cryptosoft: EINVAL crp_ilen=%d, len=%d, inject=%d digestsize=%d\n",
+						crp->crp_ilen, crd->crd_skip + sg_len, crd->crd_inject,
+						sw->u.hmac.sw_mlen);
+				crp->crp_etype = EINVAL;
+				goto done;
+			}
+
+			memset(&desc, 0, sizeof(desc));
+			desc.tfm = crypto_hash_cast(sw->sw_tfm);
+
+			memset(result, 0, sizeof(result));
+
+			if (sw->sw_type == SW_TYPE_HMAC) {
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
+				crypto_hmac(sw->sw_tfm, sw->u.hmac.sw_key, &sw->u.hmac.sw_klen,
+						sg, sg_num, result);
+#else
+				crypto_hash_setkey(desc.tfm, sw->u.hmac.sw_key,
+						sw->u.hmac.sw_klen);
+				crypto_hash_digest(&desc, sg, sg_len, result);
+#endif /* #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) */
+				
+			} else { /* SW_TYPE_HASH */
+				crypto_hash_digest(&desc, sg, sg_len, result);
+			}
+
+			crypto_copyback(crp->crp_flags, crp->crp_buf,
+					crd->crd_inject, sw->u.hmac.sw_mlen, result);
+			}
+			break;
+
+		case SW_TYPE_COMP: {
+			void *ibuf = NULL;
+			void *obuf = sw->u.sw_comp_buf;
+			int ilen = sg_len, olen = CRYPTO_MAX_DATA_LEN;
+			int ret = 0;
+
+			/*
+			 * we need to use an additional copy if there is more than one
+			 * input chunk since the kernel comp routines do not handle
+			 * SG yet.  Otherwise we just use the input buffer as is.
+			 * Rather than allocate another buffer we just split the tmp
+			 * buffer we already have.
+			 * Perhaps we should just use zlib directly ?
+			 */
+			if (sg_num > 1) {
+				int blk;
+
+				ibuf = obuf;
+				for (blk = 0; blk < sg_num; blk++) {
+					memcpy(obuf, sg_virt(&sg[blk]),
+							sg[blk].length);
+					obuf += sg[blk].length;
+				}
+				olen -= sg_len;
+			} else
+				ibuf = sg_virt(&sg[0]);
+
+			if (crd->crd_flags & CRD_F_ENCRYPT) { /* compress */
+				ret = crypto_comp_compress(crypto_comp_cast(sw->sw_tfm),
+						ibuf, ilen, obuf, &olen);
+				if (!ret && olen > crd->crd_len) {
+					dprintk("cryptosoft: ERANGE compress %d into %d\n",
+							crd->crd_len, olen);
+					if (swcr_fail_if_compression_grows)
+						ret = ERANGE;
+				}
+			} else { /* decompress */
+				ret = crypto_comp_decompress(crypto_comp_cast(sw->sw_tfm),
+						ibuf, ilen, obuf, &olen);
+				if (!ret && (olen + crd->crd_inject) > crp->crp_olen) {
+					dprintk("cryptosoft: ETOOSMALL decompress %d into %d, "
+							"space for %d,at offset %d\n",
+							crd->crd_len, olen, crp->crp_olen, crd->crd_inject);
+					ret = ETOOSMALL;
+				}
+			}
+			if (ret)
+				dprintk("%s,%d: ret = %d\n", __FILE__, __LINE__, ret);
+
+			/*
+			 * on success copy result back,
+			 * linux crpyto API returns -errno,  we need to fix that
+			 */
+			crp->crp_etype = ret < 0 ? -ret : ret;
+			if (ret == 0) {
+				/* copy back the result and return it's size */
+				crypto_copyback(crp->crp_flags, crp->crp_buf,
+						crd->crd_inject, olen, obuf);
+				crp->crp_olen = olen;
+			}
+
+
+			} break;
+
+		default:
+			/* Unknown/unsupported algorithm */
+			dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
+			crp->crp_etype = EINVAL;
+			goto done;
+		}
+	}
+
+done:
+	crypto_done(crp);
+	return 0;
+}
+
+static int
+cryptosoft_init(void)
+{
+	int i, sw_type, mode;
+	char *algo;
+
+	dprintk("%s(%p)\n", __FUNCTION__, cryptosoft_init);
+
+	softc_device_init(&swcr_softc, "cryptosoft", 0, swcr_methods);
+
+	swcr_id = crypto_get_driverid(softc_get_device(&swcr_softc),
+			CRYPTOCAP_F_SOFTWARE | CRYPTOCAP_F_SYNC);
+	if (swcr_id < 0) {
+		printk("Software crypto device cannot initialize!");
+		return -ENODEV;
+	}
+
+#define	REGISTER(alg) \
+		crypto_register(swcr_id, alg, 0,0);
+
+	for (i = CRYPTO_ALGORITHM_MIN; i <= CRYPTO_ALGORITHM_MAX; ++i)
+	{
+		
+		algo = crypto_details[i].alg_name;
+		if (!algo || !*algo)
+		{
+			dprintk("%s:Algorithm %d not supported\n", __FUNCTION__, i);
+			continue;
+		}
+
+		mode = crypto_details[i].mode;
+		sw_type = crypto_details[i].sw_type;
+
+		switch (sw_type)
+		{
+			case SW_TYPE_CIPHER:
+				if (crypto_has_cipher(algo, 0, CRYPTO_ALG_ASYNC))
+				{
+					REGISTER(i);
+				}
+				else
+				{
+					dprintk("%s:CIPHER algorithm %d:'%s' not supported\n",
+								__FUNCTION__, i, algo);
+				}
+				break;
+			case SW_TYPE_HMAC:
+				if (crypto_has_hash(algo, 0, CRYPTO_ALG_ASYNC))
+				{
+					REGISTER(i);
+				}
+				else
+				{
+					dprintk("%s:HMAC algorithm %d:'%s' not supported\n",
+								__FUNCTION__, i, algo);
+				}
+				break;
+			case SW_TYPE_HASH:
+				if (crypto_has_hash(algo, 0, CRYPTO_ALG_ASYNC))
+				{
+					REGISTER(i);
+				}
+				else
+				{
+					dprintk("%s:HASH algorithm %d:'%s' not supported\n",
+								__FUNCTION__, i, algo);
+				}
+				break;
+			case SW_TYPE_COMP:
+				if (crypto_has_comp(algo, 0, CRYPTO_ALG_ASYNC))
+				{
+					REGISTER(i);
+				}
+				else
+				{
+					dprintk("%s:COMP algorithm %d:'%s' not supported\n",
+								__FUNCTION__, i, algo);
+				}
+				break;
+			case SW_TYPE_BLKCIPHER:
+				if (crypto_has_blkcipher(algo, 0, CRYPTO_ALG_ASYNC))
+				{
+					REGISTER(i);
+				}
+				else
+				{
+					dprintk("%s:BLKCIPHER algorithm %d:'%s' not supported\n",
+								__FUNCTION__, i, algo);
+				}
+				break;
+			default:
+				dprintk(
+				"%s:Algorithm Type %d not supported (algorithm %d:'%s')\n",
+					__FUNCTION__, sw_type, i, algo);
+				break;
+		}
+	}
+
+	return(0);
+}
+
+static void
+cryptosoft_exit(void)
+{
+	dprintk("%s()\n", __FUNCTION__);
+	crypto_unregister_all(swcr_id);
+	swcr_id = -1;
+}
+
+module_init(cryptosoft_init);
+module_exit(cryptosoft_exit);
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("David McCullough <david_mccullough@securecomputing.com>");
+MODULE_DESCRIPTION("Cryptosoft (OCF module for kernel crypto)");
diff -Nur linux-2.6.29.1.orig/crypto/ocf/ep80579/Makefile linux-2.6.29.1/crypto/ocf/ep80579/Makefile
--- linux-2.6.29.1.orig/crypto/ocf/ep80579/Makefile	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/ep80579/Makefile	2009-04-20 20:01:21.468554715 +0200
@@ -0,0 +1,107 @@
+#########################################################################
+#
+#  Targets supported
+#  all     - builds everything and installs
+#  install - identical to all
+#  depend  - build dependencies
+#  clean   - clears derived objects except the .depend files
+#  distclean- clears all derived objects and the .depend file
+#  
+# @par
+# This file is provided under a dual BSD/GPLv2 license.  When using or 
+#   redistributing this file, you may do so under either license.
+# 
+#   GPL LICENSE SUMMARY
+# 
+#   Copyright(c) 2007,2008 Intel Corporation. All rights reserved.
+# 
+#   This program is free software; you can redistribute it and/or modify 
+#   it under the terms of version 2 of the GNU General Public License as
+#   published by the Free Software Foundation.
+# 
+#   This program is distributed in the hope that it will be useful, but 
+#   WITHOUT ANY WARRANTY; without even the implied warranty of 
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU 
+#   General Public License for more details.
+# 
+#   You should have received a copy of the GNU General Public License 
+#   along with this program; if not, write to the Free Software 
+#   Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+#   The full GNU General Public License is included in this distribution 
+#   in the file called LICENSE.GPL.
+# 
+#   Contact Information:
+#   Intel Corporation
+# 
+#   BSD LICENSE 
+# 
+#   Copyright(c) 2007,2008 Intel Corporation. All rights reserved.
+#   All rights reserved.
+# 
+#   Redistribution and use in source and binary forms, with or without 
+#   modification, are permitted provided that the following conditions 
+#   are met:
+# 
+#     * Redistributions of source code must retain the above copyright 
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright 
+#       notice, this list of conditions and the following disclaimer in 
+#       the documentation and/or other materials provided with the 
+#       distribution.
+#     * Neither the name of Intel Corporation nor the names of its 
+#       contributors may be used to endorse or promote products derived 
+#       from this software without specific prior written permission.
+# 
+#   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+#   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+#   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 
+#   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+#   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+#   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+#   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
+#   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+#   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+#   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+#   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# 
+# 
+#  version: Security.L.1.0.130
+############################################################################
+
+
+####################Common variables and definitions########################
+
+# Ensure The ENV_DIR environmental var is defined.
+ifndef ICP_ENV_DIR
+$(error ICP_ENV_DIR is undefined. Please set the path to your environment makefile \
+        "-> setenv ICP_ENV_DIR <path>")
+endif
+
+#Add your project environment Makefile
+include $(ICP_ENV_DIR)/environment.mk
+
+#include the makefile with all the default and common Make variable definitions
+include $(ICP_BUILDSYSTEM_PATH)/build_files/common.mk
+
+#Add the name for the executable, Library or Module output definitions
+OUTPUT_NAME= icp_ocf
+
+# List of Source Files to be compiled 
+SOURCES= icp_common.c icp_sym.c icp_asym.c
+
+#common includes between all supported OSes
+INCLUDES= -I $(ICP_API_DIR) -I$(ICP_LAC_API) \
+-I$(ICP_OCF_SRC_DIR)
+
+# The location of the os level makefile needs to be changed.
+include $(ICP_ENV_DIR)/$(ICP_OS)_$(ICP_OS_LEVEL).mk
+
+# On the line directly below list the outputs you wish to build for,
+# e.g "lib_static lib_shared exe module" as show below
+install: module
+
+###################Include rules makefiles########################
+include $(ICP_BUILDSYSTEM_PATH)/build_files/rules.mk
+###################End of Rules inclusion#########################
+
+
diff -Nur linux-2.6.29.1.orig/crypto/ocf/ep80579/icp_asym.c linux-2.6.29.1/crypto/ocf/ep80579/icp_asym.c
--- linux-2.6.29.1.orig/crypto/ocf/ep80579/icp_asym.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/ep80579/icp_asym.c	2009-04-20 20:01:21.428551297 +0200
@@ -0,0 +1,1375 @@
+/***************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or 
+ *   redistributing this file, you may do so under either license.
+ * 
+ *   GPL LICENSE SUMMARY
+ * 
+ *   Copyright(c) 2007,2008 Intel Corporation. All rights reserved.
+ * 
+ *   This program is free software; you can redistribute it and/or modify 
+ *   it under the terms of version 2 of the GNU General Public License as
+ *   published by the Free Software Foundation.
+ * 
+ *   This program is distributed in the hope that it will be useful, but 
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of 
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU 
+ *   General Public License for more details.
+ * 
+ *   You should have received a copy of the GNU General Public License 
+ *   along with this program; if not, write to the Free Software 
+ *   Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *   The full GNU General Public License is included in this distribution 
+ *   in the file called LICENSE.GPL.
+ * 
+ *   Contact Information:
+ *   Intel Corporation
+ * 
+ *   BSD LICENSE 
+ * 
+ *   Copyright(c) 2007,2008 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ * 
+ *   Redistribution and use in source and binary forms, with or without 
+ *   modification, are permitted provided that the following conditions 
+ *   are met:
+ * 
+ *     * Redistributions of source code must retain the above copyright 
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright 
+ *       notice, this list of conditions and the following disclaimer in 
+ *       the documentation and/or other materials provided with the 
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its 
+ *       contributors may be used to endorse or promote products derived 
+ *       from this software without specific prior written permission.
+ * 
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * 
+ *  version: Security.L.1.0.130
+ *
+ ***************************************************************************/
+
+#include "icp_ocf.h"
+
+/*The following define values (containing the word 'INDEX') are used to find
+the index of each input buffer of the crypto_kop struct (see OCF cryptodev.h).
+These values were found through analysis of the OCF OpenSSL patch. If the
+calling program uses different input buffer positions, these defines will have
+to be changed.*/
+
+/*DIFFIE HELLMAN buffer index values*/
+#define ICP_DH_KRP_PARAM_PRIME_INDEX				(0)
+#define ICP_DH_KRP_PARAM_BASE_INDEX				(1)
+#define ICP_DH_KRP_PARAM_PRIVATE_VALUE_INDEX			(2)
+#define ICP_DH_KRP_PARAM_RESULT_INDEX				(3)
+
+/*MOD EXP buffer index values*/
+#define ICP_MOD_EXP_KRP_PARAM_BASE_INDEX			(0)
+#define ICP_MOD_EXP_KRP_PARAM_EXPONENT_INDEX			(1)
+#define ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX			(2)
+#define ICP_MOD_EXP_KRP_PARAM_RESULT_INDEX			(3)
+
+#define SINGLE_BYTE_VALUE					(4)
+
+/*MOD EXP CRT buffer index values*/
+#define ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_P_INDEX			(0)
+#define ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_Q_INDEX			(1)
+#define ICP_MOD_EXP_CRT_KRP_PARAM_I_INDEX			(2)
+#define ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DP_INDEX		(3)
+#define ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DQ_INDEX		(4)
+#define ICP_MOD_EXP_CRT_KRP_PARAM_COEFF_QINV_INDEX		(5)
+#define ICP_MOD_EXP_CRT_KRP_PARAM_RESULT_INDEX			(6)
+
+/*DSA sign buffer index values*/
+#define ICP_DSA_SIGN_KRP_PARAM_DGST_INDEX			(0)
+#define ICP_DSA_SIGN_KRP_PARAM_PRIME_P_INDEX			(1)
+#define ICP_DSA_SIGN_KRP_PARAM_PRIME_Q_INDEX			(2)
+#define ICP_DSA_SIGN_KRP_PARAM_G_INDEX				(3)
+#define ICP_DSA_SIGN_KRP_PARAM_X_INDEX				(4)
+#define ICP_DSA_SIGN_KRP_PARAM_R_RESULT_INDEX			(5)
+#define ICP_DSA_SIGN_KRP_PARAM_S_RESULT_INDEX			(6)
+
+/*DSA verify buffer index values*/
+#define ICP_DSA_VERIFY_KRP_PARAM_DGST_INDEX			(0)
+#define ICP_DSA_VERIFY_KRP_PARAM_PRIME_P_INDEX			(1)
+#define ICP_DSA_VERIFY_KRP_PARAM_PRIME_Q_INDEX			(2)
+#define ICP_DSA_VERIFY_KRP_PARAM_G_INDEX			(3)
+#define ICP_DSA_VERIFY_KRP_PARAM_PUBKEY_INDEX			(4)
+#define ICP_DSA_VERIFY_KRP_PARAM_SIG_R_INDEX			(5)
+#define ICP_DSA_VERIFY_KRP_PARAM_SIG_S_INDEX			(6)
+
+/*DSA sign prime Q vs random number K size check values*/
+#define DONT_RUN_LESS_THAN_CHECK				(0)
+#define FAIL_A_IS_GREATER_THAN_B				(1)
+#define FAIL_A_IS_EQUAL_TO_B					(1)
+#define SUCCESS_A_IS_LESS_THAN_B				(0)
+#define DSA_SIGN_RAND_GEN_VAL_CHECK_MAX_ITERATIONS		(500)
+
+/* We need to set a cryptokp success value just in case it is set or allocated
+   and not set to zero outside of this module */
+#define CRYPTO_OP_SUCCESS					(0)
+
+static int icp_ocfDrvDHComputeKey(struct cryptkop *krp);
+
+static int icp_ocfDrvModExp(struct cryptkop *krp);
+
+static int icp_ocfDrvModExpCRT(struct cryptkop *krp);
+
+static int
+icp_ocfDrvCheckALessThanB(CpaFlatBuffer * pK, CpaFlatBuffer * pQ, int *doCheck);
+
+static int icp_ocfDrvDsaSign(struct cryptkop *krp);
+
+static int icp_ocfDrvDsaVerify(struct cryptkop *krp);
+
+static void
+icp_ocfDrvDhP1CallBack(void *callbackTag,
+		       CpaStatus status,
+		       void *pOpData, CpaFlatBuffer * pLocalOctetStringPV);
+
+static void
+icp_ocfDrvModExpCallBack(void *callbackTag,
+			 CpaStatus status,
+			 void *pOpData, CpaFlatBuffer * pResult);
+
+static void
+icp_ocfDrvModExpCRTCallBack(void *callbackTag,
+			    CpaStatus status,
+			    void *pOpData, CpaFlatBuffer * pOutputData);
+
+static void
+icp_ocfDrvDsaVerifyCallBack(void *callbackTag,
+			    CpaStatus status,
+			    void *pOpData, CpaBoolean verifyStatus);
+
+static void
+icp_ocfDrvDsaRSSignCallBack(void *callbackTag,
+			    CpaStatus status,
+			    void *pOpData,
+			    CpaBoolean protocolStatus,
+			    CpaFlatBuffer * pR, CpaFlatBuffer * pS);
+
+/* Name        : icp_ocfDrvPkeProcess
+ *
+ * Description : This function will choose which PKE process to follow
+ * based on the input arguments
+ */
+int icp_ocfDrvPkeProcess(device_t dev, struct cryptkop *krp, int hint)
+{
+	CpaStatus lacStatus = CPA_STATUS_SUCCESS;
+
+	if (NULL == krp) {
+		DPRINTK("%s(): Invalid input parameters, cryptkop = %p\n",
+			__FUNCTION__, krp);
+		return EINVAL;
+	}
+
+	if (CPA_TRUE == atomic_read(&icp_ocfDrvIsExiting)) {
+		krp->krp_status = ECANCELED;
+		return ECANCELED;
+	}
+
+	switch (krp->krp_op) {
+	case CRK_DH_COMPUTE_KEY:
+		DPRINTK("%s() doing DH_COMPUTE_KEY\n", __FUNCTION__);
+		lacStatus = icp_ocfDrvDHComputeKey(krp);
+		if (CPA_STATUS_SUCCESS != lacStatus) {
+			EPRINTK("%s(): icp_ocfDrvDHComputeKey failed "
+				"(%d).\n", __FUNCTION__, lacStatus);
+			krp->krp_status = ECANCELED;
+			return ECANCELED;
+		}
+
+		break;
+
+	case CRK_MOD_EXP:
+		DPRINTK("%s() doing MOD_EXP \n", __FUNCTION__);
+		lacStatus = icp_ocfDrvModExp(krp);
+		if (CPA_STATUS_SUCCESS != lacStatus) {
+			EPRINTK("%s(): icp_ocfDrvModExp failed (%d).\n",
+				__FUNCTION__, lacStatus);
+			krp->krp_status = ECANCELED;
+			return ECANCELED;
+		}
+
+		break;
+
+	case CRK_MOD_EXP_CRT:
+		DPRINTK("%s() doing MOD_EXP_CRT \n", __FUNCTION__);
+		lacStatus = icp_ocfDrvModExpCRT(krp);
+		if (CPA_STATUS_SUCCESS != lacStatus) {
+			EPRINTK("%s(): icp_ocfDrvModExpCRT "
+				"failed (%d).\n", __FUNCTION__, lacStatus);
+			krp->krp_status = ECANCELED;
+			return ECANCELED;
+		}
+
+		break;
+
+	case CRK_DSA_SIGN:
+		DPRINTK("%s() doing DSA_SIGN \n", __FUNCTION__);
+		lacStatus = icp_ocfDrvDsaSign(krp);
+		if (CPA_STATUS_SUCCESS != lacStatus) {
+			EPRINTK("%s(): icp_ocfDrvDsaSign "
+				"failed (%d).\n", __FUNCTION__, lacStatus);
+			krp->krp_status = ECANCELED;
+			return ECANCELED;
+		}
+
+		break;
+
+	case CRK_DSA_VERIFY:
+		DPRINTK("%s() doing DSA_VERIFY \n", __FUNCTION__);
+		lacStatus = icp_ocfDrvDsaVerify(krp);
+		if (CPA_STATUS_SUCCESS != lacStatus) {
+			EPRINTK("%s(): icp_ocfDrvDsaVerify "
+				"failed (%d).\n", __FUNCTION__, lacStatus);
+			krp->krp_status = ECANCELED;
+			return ECANCELED;
+		}
+
+		break;
+
+	default:
+		EPRINTK("%s(): Asymettric function not "
+			"supported (%d).\n", __FUNCTION__, krp->krp_op);
+		krp->krp_status = EOPNOTSUPP;
+		return EOPNOTSUPP;
+	}
+
+	return ICP_OCF_DRV_STATUS_SUCCESS;
+}
+
+/* Name        : icp_ocfDrvSwapBytes
+ *
+ * Description : This function is used to swap the byte order of a buffer.
+ * It has been seen that in general we are passed little endian byte order
+ * buffers, but LAC only accepts big endian byte order buffers.
+ */
+static void inline
+icp_ocfDrvSwapBytes(u_int8_t * num, u_int32_t buff_len_bytes)
+{
+
+	int i;
+	u_int8_t *end_ptr;
+	u_int8_t hold_val;
+
+	end_ptr = num + (buff_len_bytes - 1);
+	buff_len_bytes = buff_len_bytes >> 1;
+	for (i = 0; i < buff_len_bytes; i++) {
+		hold_val = *num;
+		*num = *end_ptr;
+		num++;
+		*end_ptr = hold_val;
+		end_ptr--;
+	}
+}
+
+/* Name        : icp_ocfDrvDHComputeKey
+ *
+ * Description : This function will map Diffie Hellman calls from OCF
+ * to the LAC API. OCF uses this function for Diffie Hellman Phase1 and
+ * Phase2. LAC has a separate Diffie Hellman Phase2 call, however both phases
+ * break down to a modular exponentiation.
+ */
+static int icp_ocfDrvDHComputeKey(struct cryptkop *krp)
+{
+	CpaStatus lacStatus = CPA_STATUS_SUCCESS;
+	void *callbackTag = NULL;
+	CpaCyDhPhase1KeyGenOpData *pPhase1OpData = NULL;
+	CpaFlatBuffer *pLocalOctetStringPV = NULL;
+	uint32_t dh_prime_len_bytes = 0, dh_prime_len_bits = 0;
+
+	/* Input checks - check prime is a multiple of 8 bits to allow for
+	   allocation later */
+	dh_prime_len_bits =
+	    (krp->krp_param[ICP_DH_KRP_PARAM_PRIME_INDEX].crp_nbits);
+
+	/* LAC can reject prime lengths based on prime key sizes, we just
+	   need to make sure we can allocate space for the base and
+	   exponent buffers correctly */
+	if ((dh_prime_len_bits % NUM_BITS_IN_BYTE) != 0) {
+		APRINTK("%s(): Warning Prime number buffer size is not a "
+			"multiple of 8 bits\n", __FUNCTION__);
+	}
+
+	/* Result storage space should be the same size as the prime as this
+	   value can take up the same amount of storage space */
+	if (dh_prime_len_bits !=
+	    krp->krp_param[ICP_DH_KRP_PARAM_RESULT_INDEX].crp_nbits) {
+		DPRINTK("%s(): Return Buffer must be the same size "
+			"as the Prime buffer\n", __FUNCTION__);
+		krp->krp_status = EINVAL;
+		return EINVAL;
+	}
+	/* Switch to size in bytes */
+	BITS_TO_BYTES(dh_prime_len_bytes, dh_prime_len_bits);
+
+	callbackTag = krp;
+
+	pPhase1OpData = kmem_cache_zalloc(drvDH_zone, GFP_KERNEL);
+	if (NULL == pPhase1OpData) {
+		APRINTK("%s():Failed to get memory for key gen data\n",
+			__FUNCTION__);
+		krp->krp_status = ENOMEM;
+		return ENOMEM;
+	}
+
+	pLocalOctetStringPV = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL);
+	if (NULL == pLocalOctetStringPV) {
+		APRINTK("%s():Failed to get memory for pLocalOctetStringPV\n",
+			__FUNCTION__);
+		kmem_cache_free(drvDH_zone, pPhase1OpData);
+		krp->krp_status = ENOMEM;
+		return ENOMEM;
+	}
+
+	/* Link parameters */
+	pPhase1OpData->primeP.pData =
+	    krp->krp_param[ICP_DH_KRP_PARAM_PRIME_INDEX].crp_p;
+
+	pPhase1OpData->primeP.dataLenInBytes = dh_prime_len_bytes;
+
+	icp_ocfDrvSwapBytes(pPhase1OpData->primeP.pData, dh_prime_len_bytes);
+
+	pPhase1OpData->baseG.pData =
+	    krp->krp_param[ICP_DH_KRP_PARAM_BASE_INDEX].crp_p;
+
+	BITS_TO_BYTES(pPhase1OpData->baseG.dataLenInBytes,
+		      krp->krp_param[ICP_DH_KRP_PARAM_BASE_INDEX].crp_nbits);
+
+	icp_ocfDrvSwapBytes(pPhase1OpData->baseG.pData,
+			    pPhase1OpData->baseG.dataLenInBytes);
+
+	pPhase1OpData->privateValueX.pData =
+	    krp->krp_param[ICP_DH_KRP_PARAM_PRIVATE_VALUE_INDEX].crp_p;
+
+	BITS_TO_BYTES(pPhase1OpData->privateValueX.dataLenInBytes,
+		      krp->krp_param[ICP_DH_KRP_PARAM_PRIVATE_VALUE_INDEX].
+		      crp_nbits);
+
+	icp_ocfDrvSwapBytes(pPhase1OpData->privateValueX.pData,
+			    pPhase1OpData->privateValueX.dataLenInBytes);
+
+	/* Output parameters */
+	pLocalOctetStringPV->pData =
+	    krp->krp_param[ICP_DH_KRP_PARAM_RESULT_INDEX].crp_p;
+
+	BITS_TO_BYTES(pLocalOctetStringPV->dataLenInBytes,
+		      krp->krp_param[ICP_DH_KRP_PARAM_RESULT_INDEX].crp_nbits);
+
+	lacStatus = cpaCyDhKeyGenPhase1(CPA_INSTANCE_HANDLE_SINGLE,
+					icp_ocfDrvDhP1CallBack,
+					callbackTag, pPhase1OpData,
+					pLocalOctetStringPV);
+
+	if (CPA_STATUS_SUCCESS != lacStatus) {
+		EPRINTK("%s(): DH Phase 1 Key Gen failed (%d).\n",
+			__FUNCTION__, lacStatus);
+		icp_ocfDrvFreeFlatBuffer(pLocalOctetStringPV);
+		kmem_cache_free(drvDH_zone, pPhase1OpData);
+	}
+
+	return lacStatus;
+}
+
+/* Name        : icp_ocfDrvModExp
+ *
+ * Description : This function will map ordinary Modular Exponentiation calls
+ * from OCF to the LAC API.
+ *
+ */
+static int icp_ocfDrvModExp(struct cryptkop *krp)
+{
+	CpaStatus lacStatus = CPA_STATUS_SUCCESS;
+	void *callbackTag = NULL;
+	CpaCyLnModExpOpData *pModExpOpData = NULL;
+	CpaFlatBuffer *pResult = NULL;
+
+	if ((krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX].crp_nbits %
+	     NUM_BITS_IN_BYTE) != 0) {
+		DPRINTK("%s(): Warning - modulus buffer size (%d) is not a "
+			"multiple of 8 bits\n", __FUNCTION__,
+			krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX].
+			crp_nbits);
+	}
+
+	/* Result storage space should be the same size as the prime as this
+	   value can take up the same amount of storage space */
+	if (krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX].crp_nbits >
+	    krp->krp_param[ICP_MOD_EXP_KRP_PARAM_RESULT_INDEX].crp_nbits) {
+		APRINTK("%s(): Return Buffer size must be the same or"
+			" greater than the Modulus buffer\n", __FUNCTION__);
+		krp->krp_status = EINVAL;
+		return EINVAL;
+	}
+
+	callbackTag = krp;
+
+	pModExpOpData = kmem_cache_zalloc(drvLnModExp_zone, GFP_KERNEL);
+	if (NULL == pModExpOpData) {
+		APRINTK("%s():Failed to get memory for key gen data\n",
+			__FUNCTION__);
+		krp->krp_status = ENOMEM;
+		return ENOMEM;
+	}
+
+	pResult = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL);
+	if (NULL == pResult) {
+		APRINTK("%s():Failed to get memory for ModExp result\n",
+			__FUNCTION__);
+		kmem_cache_free(drvLnModExp_zone, pModExpOpData);
+		krp->krp_status = ENOMEM;
+		return ENOMEM;
+	}
+
+	/* Link parameters */
+	pModExpOpData->modulus.pData =
+	    krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX].crp_p;
+	BITS_TO_BYTES(pModExpOpData->modulus.dataLenInBytes,
+		      krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX].
+		      crp_nbits);
+
+	icp_ocfDrvSwapBytes(pModExpOpData->modulus.pData,
+			    pModExpOpData->modulus.dataLenInBytes);
+
+	/*OCF patch to Openswan Pluto regularly sends the base value as 2
+	   bits in size. In this case, it has been found it is better to
+	   use the base size memory space as the input buffer (if the number
+	   is in bits is less than a byte, the number of bits is the input
+	   value) */
+	if (krp->krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].crp_nbits <
+	    NUM_BITS_IN_BYTE) {
+		DPRINTK("%s : base is small (%d)\n", __FUNCTION__, krp->
+			krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].crp_nbits);
+		pModExpOpData->base.dataLenInBytes = SINGLE_BYTE_VALUE;
+		pModExpOpData->base.pData =
+		    (uint8_t *) & (krp->
+				   krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].
+				   crp_nbits);
+		*((uint32_t *) pModExpOpData->base.pData) =
+		    htonl(*((uint32_t *) pModExpOpData->base.pData));
+
+	} else {
+
+		DPRINTK("%s : base is big (%d)\n", __FUNCTION__, krp->
+			krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].crp_nbits);
+		pModExpOpData->base.pData =
+		    krp->krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].crp_p;
+		BITS_TO_BYTES(pModExpOpData->base.dataLenInBytes,
+			      krp->krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].
+			      crp_nbits);
+		icp_ocfDrvSwapBytes(pModExpOpData->base.pData,
+				    pModExpOpData->base.dataLenInBytes);
+	}
+
+	pModExpOpData->exponent.pData =
+	    krp->krp_param[ICP_MOD_EXP_KRP_PARAM_EXPONENT_INDEX].crp_p;
+	BITS_TO_BYTES(pModExpOpData->exponent.dataLenInBytes,
+		      krp->krp_param[ICP_MOD_EXP_KRP_PARAM_EXPONENT_INDEX].
+		      crp_nbits);
+
+	icp_ocfDrvSwapBytes(pModExpOpData->exponent.pData,
+			    pModExpOpData->exponent.dataLenInBytes);
+	/* Output parameters */
+	pResult->pData =
+	    krp->krp_param[ICP_MOD_EXP_KRP_PARAM_RESULT_INDEX].crp_p,
+	    BITS_TO_BYTES(pResult->dataLenInBytes,
+			  krp->krp_param[ICP_MOD_EXP_KRP_PARAM_RESULT_INDEX].
+			  crp_nbits);
+
+	lacStatus = cpaCyLnModExp(CPA_INSTANCE_HANDLE_SINGLE,
+				  icp_ocfDrvModExpCallBack,
+				  callbackTag, pModExpOpData, pResult);
+
+	if (CPA_STATUS_SUCCESS != lacStatus) {
+		EPRINTK("%s(): Mod Exp Operation failed (%d).\n",
+			__FUNCTION__, lacStatus);
+		krp->krp_status = ECANCELED;
+		icp_ocfDrvFreeFlatBuffer(pResult);
+		kmem_cache_free(drvLnModExp_zone, pModExpOpData);
+	}
+
+	return lacStatus;
+}
+
+/* Name        : icp_ocfDrvModExpCRT
+ *
+ * Description : This function will map ordinary Modular Exponentiation Chinese
+ * Remainder Theorem implementaion calls from OCF to the LAC API.
+ *
+ * Note : Mod Exp CRT for this driver is accelerated through LAC RSA type 2
+ * decrypt operation. Therefore P and Q input values must always be prime
+ * numbers. Although basic primality checks are done in LAC, it is up to the
+ * user to do any correct prime number checking before passing the inputs.
+ */
+
+static int icp_ocfDrvModExpCRT(struct cryptkop *krp)
+{
+	CpaStatus lacStatus = CPA_STATUS_SUCCESS;
+	CpaCyRsaDecryptOpData *rsaDecryptOpData = NULL;
+	void *callbackTag = NULL;
+	CpaFlatBuffer *pOutputData = NULL;
+
+	/*Parameter input checks are all done by LAC, no need to repeat
+	   them here. */
+	callbackTag = krp;
+
+	rsaDecryptOpData = kmem_cache_zalloc(drvRSADecrypt_zone, GFP_KERNEL);
+	if (NULL == rsaDecryptOpData) {
+		APRINTK("%s():Failed to get memory"
+			" for MOD EXP CRT Op data struct\n", __FUNCTION__);
+		krp->krp_status = ENOMEM;
+		return ENOMEM;
+	}
+
+	rsaDecryptOpData->pRecipientPrivateKey
+	    = kmem_cache_zalloc(drvRSAPrivateKey_zone, GFP_KERNEL);
+	if (NULL == rsaDecryptOpData->pRecipientPrivateKey) {
+		APRINTK("%s():Failed to get memory for MOD EXP CRT"
+			" private key values struct\n", __FUNCTION__);
+		kmem_cache_free(drvRSADecrypt_zone, rsaDecryptOpData);
+		krp->krp_status = ENOMEM;
+		return ENOMEM;
+	}
+
+	rsaDecryptOpData->pRecipientPrivateKey->
+	    version = CPA_CY_RSA_VERSION_TWO_PRIME;
+	rsaDecryptOpData->pRecipientPrivateKey->
+	    privateKeyRepType = CPA_CY_RSA_PRIVATE_KEY_REP_TYPE_2;
+
+	pOutputData = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL);
+	if (NULL == pOutputData) {
+		APRINTK("%s():Failed to get memory"
+			" for MOD EXP CRT output data\n", __FUNCTION__);
+		kmem_cache_free(drvRSAPrivateKey_zone,
+				rsaDecryptOpData->pRecipientPrivateKey);
+		kmem_cache_free(drvRSADecrypt_zone, rsaDecryptOpData);
+		krp->krp_status = ENOMEM;
+		return ENOMEM;
+	}
+
+	rsaDecryptOpData->pRecipientPrivateKey->
+	    version = CPA_CY_RSA_VERSION_TWO_PRIME;
+	rsaDecryptOpData->pRecipientPrivateKey->
+	    privateKeyRepType = CPA_CY_RSA_PRIVATE_KEY_REP_TYPE_2;
+
+	/* Link parameters */
+	rsaDecryptOpData->inputData.pData =
+	    krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_I_INDEX].crp_p;
+	BITS_TO_BYTES(rsaDecryptOpData->inputData.dataLenInBytes,
+		      krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_I_INDEX].
+		      crp_nbits);
+
+	icp_ocfDrvSwapBytes(rsaDecryptOpData->inputData.pData,
+			    rsaDecryptOpData->inputData.dataLenInBytes);
+
+	rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2.prime1P.pData =
+	    krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_P_INDEX].crp_p;
+	BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2.
+		      prime1P.dataLenInBytes,
+		      krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_P_INDEX].
+		      crp_nbits);
+
+	icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey->
+			    privateKeyRep2.prime1P.pData,
+			    rsaDecryptOpData->pRecipientPrivateKey->
+			    privateKeyRep2.prime1P.dataLenInBytes);
+
+	rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2.prime2Q.pData =
+	    krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_Q_INDEX].crp_p;
+	BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2.
+		      prime2Q.dataLenInBytes,
+		      krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_Q_INDEX].
+		      crp_nbits);
+
+	icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey->
+			    privateKeyRep2.prime2Q.pData,
+			    rsaDecryptOpData->pRecipientPrivateKey->
+			    privateKeyRep2.prime2Q.dataLenInBytes);
+
+	rsaDecryptOpData->pRecipientPrivateKey->
+	    privateKeyRep2.exponent1Dp.pData =
+	    krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DP_INDEX].crp_p;
+	BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2.
+		      exponent1Dp.dataLenInBytes,
+		      krp->
+		      krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DP_INDEX].
+		      crp_nbits);
+
+	icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey->
+			    privateKeyRep2.exponent1Dp.pData,
+			    rsaDecryptOpData->pRecipientPrivateKey->
+			    privateKeyRep2.exponent1Dp.dataLenInBytes);
+
+	rsaDecryptOpData->pRecipientPrivateKey->
+	    privateKeyRep2.exponent2Dq.pData =
+	    krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DQ_INDEX].crp_p;
+	BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey->
+		      privateKeyRep2.exponent2Dq.dataLenInBytes,
+		      krp->
+		      krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DQ_INDEX].
+		      crp_nbits);
+
+	icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey->
+			    privateKeyRep2.exponent2Dq.pData,
+			    rsaDecryptOpData->pRecipientPrivateKey->
+			    privateKeyRep2.exponent2Dq.dataLenInBytes);
+
+	rsaDecryptOpData->pRecipientPrivateKey->
+	    privateKeyRep2.coefficientQInv.pData =
+	    krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_COEFF_QINV_INDEX].crp_p;
+	BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey->
+		      privateKeyRep2.coefficientQInv.dataLenInBytes,
+		      krp->
+		      krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_COEFF_QINV_INDEX].
+		      crp_nbits);
+
+	icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey->
+			    privateKeyRep2.coefficientQInv.pData,
+			    rsaDecryptOpData->pRecipientPrivateKey->
+			    privateKeyRep2.coefficientQInv.dataLenInBytes);
+
+	/* Output Parameter */
+	pOutputData->pData =
+	    krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_RESULT_INDEX].crp_p;
+	BITS_TO_BYTES(pOutputData->dataLenInBytes,
+		      krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_RESULT_INDEX].
+		      crp_nbits);
+
+	lacStatus = cpaCyRsaDecrypt(CPA_INSTANCE_HANDLE_SINGLE,
+				    icp_ocfDrvModExpCRTCallBack,
+				    callbackTag, rsaDecryptOpData, pOutputData);
+
+	if (CPA_STATUS_SUCCESS != lacStatus) {
+		EPRINTK("%s(): Mod Exp CRT Operation failed (%d).\n",
+			__FUNCTION__, lacStatus);
+		krp->krp_status = ECANCELED;
+		icp_ocfDrvFreeFlatBuffer(pOutputData);
+		kmem_cache_free(drvRSAPrivateKey_zone,
+				rsaDecryptOpData->pRecipientPrivateKey);
+		kmem_cache_free(drvRSADecrypt_zone, rsaDecryptOpData);
+	}
+
+	return lacStatus;
+}
+
+/* Name        : icp_ocfDrvCheckALessThanB
+ *
+ * Description : This function will check whether the first argument is less
+ * than the second. It is used to check whether the DSA RS sign Random K
+ * value is less than the Prime Q value (as defined in the specification)
+ *
+ */
+static int
+icp_ocfDrvCheckALessThanB(CpaFlatBuffer * pK, CpaFlatBuffer * pQ, int *doCheck)
+{
+
+	uint8_t *MSB_K = pK->pData;
+	uint8_t *MSB_Q = pQ->pData;
+	uint32_t buffer_lengths_in_bytes = pQ->dataLenInBytes;
+
+	if (DONT_RUN_LESS_THAN_CHECK == *doCheck) {
+		return FAIL_A_IS_GREATER_THAN_B;
+	}
+
+/*Check MSBs
+if A == B, check next MSB
+if A > B, return A_IS_GREATER_THAN_B
+if A < B, return A_IS_LESS_THAN_B (success)
+*/
+	while (*MSB_K == *MSB_Q) {
+		MSB_K++;
+		MSB_Q++;
+
+		buffer_lengths_in_bytes--;
+		if (0 == buffer_lengths_in_bytes) {
+			DPRINTK("%s() Buffers have equal value!!\n",
+				__FUNCTION__);
+			return FAIL_A_IS_EQUAL_TO_B;
+		}
+
+	}
+
+	if (*MSB_K < *MSB_Q) {
+		return SUCCESS_A_IS_LESS_THAN_B;
+	} else {
+		return FAIL_A_IS_GREATER_THAN_B;
+	}
+
+}
+
+/* Name        : icp_ocfDrvDsaSign
+ *
+ * Description : This function will map DSA RS Sign from OCF to the LAC API.
+ *
+ * NOTE: From looking at OCF patch to OpenSSL and even the number of input
+ * parameters, OCF expects us to generate the random seed value. This value
+ * is generated and passed to LAC, however the number is discared in the
+ * callback and not returned to the user.
+ */
+static int icp_ocfDrvDsaSign(struct cryptkop *krp)
+{
+	CpaStatus lacStatus = CPA_STATUS_SUCCESS;
+	CpaCyDsaRSSignOpData *dsaRsSignOpData = NULL;
+	void *callbackTag = NULL;
+	CpaCyRandGenOpData randGenOpData;
+	int primeQSizeInBytes = 0;
+	int doCheck = 0;
+	CpaFlatBuffer randData;
+	CpaBoolean protocolStatus = CPA_FALSE;
+	CpaFlatBuffer *pR = NULL;
+	CpaFlatBuffer *pS = NULL;
+
+	callbackTag = krp;
+
+	BITS_TO_BYTES(primeQSizeInBytes,
+		      krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_Q_INDEX].
+		      crp_nbits);
+
+	if (DSA_RS_SIGN_PRIMEQ_SIZE_IN_BYTES != primeQSizeInBytes) {
+		APRINTK("%s(): DSA PRIME Q size not equal to the "
+			"FIPS defined 20bytes, = %d\n",
+			__FUNCTION__, primeQSizeInBytes);
+		krp->krp_status = EDOM;
+		return EDOM;
+	}
+
+	dsaRsSignOpData = kmem_cache_zalloc(drvDSARSSign_zone, GFP_KERNEL);
+	if (NULL == dsaRsSignOpData) {
+		APRINTK("%s():Failed to get memory"
+			" for DSA RS Sign Op data struct\n", __FUNCTION__);
+		krp->krp_status = ENOMEM;
+		return ENOMEM;
+	}
+
+	dsaRsSignOpData->K.pData =
+	    kmem_cache_alloc(drvDSARSSignKValue_zone, GFP_ATOMIC);
+
+	if (NULL == dsaRsSignOpData->K.pData) {
+		APRINTK("%s():Failed to get memory"
+			" for DSA RS Sign Op Random value\n", __FUNCTION__);
+		kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData);
+		krp->krp_status = ENOMEM;
+		return ENOMEM;
+	}
+
+	pR = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL);
+	if (NULL == pR) {
+		APRINTK("%s():Failed to get memory"
+			" for DSA signature R\n", __FUNCTION__);
+		kmem_cache_free(drvDSARSSignKValue_zone,
+				dsaRsSignOpData->K.pData);
+		kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData);
+		krp->krp_status = ENOMEM;
+		return ENOMEM;
+	}
+
+	pS = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL);
+	if (NULL == pS) {
+		APRINTK("%s():Failed to get memory"
+			" for DSA signature S\n", __FUNCTION__);
+		icp_ocfDrvFreeFlatBuffer(pR);
+		kmem_cache_free(drvDSARSSignKValue_zone,
+				dsaRsSignOpData->K.pData);
+		kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData);
+		krp->krp_status = ENOMEM;
+		return ENOMEM;
+	}
+
+	/*link prime number parameter for ease of processing */
+	dsaRsSignOpData->P.pData =
+	    krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_P_INDEX].crp_p;
+	BITS_TO_BYTES(dsaRsSignOpData->P.dataLenInBytes,
+		      krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_P_INDEX].
+		      crp_nbits);
+
+	icp_ocfDrvSwapBytes(dsaRsSignOpData->P.pData,
+			    dsaRsSignOpData->P.dataLenInBytes);
+
+	dsaRsSignOpData->Q.pData =
+	    krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_Q_INDEX].crp_p;
+	BITS_TO_BYTES(dsaRsSignOpData->Q.dataLenInBytes,
+		      krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_Q_INDEX].
+		      crp_nbits);
+
+	icp_ocfDrvSwapBytes(dsaRsSignOpData->Q.pData,
+			    dsaRsSignOpData->Q.dataLenInBytes);
+
+	/*generate random number with equal buffer size to Prime value Q,
+	   but value less than Q */
+	dsaRsSignOpData->K.dataLenInBytes = dsaRsSignOpData->Q.dataLenInBytes;
+
+	randGenOpData.generateBits = CPA_TRUE;
+	randGenOpData.lenInBytes = dsaRsSignOpData->K.dataLenInBytes;
+
+	icp_ocfDrvPtrAndLenToFlatBuffer(dsaRsSignOpData->K.pData,
+					dsaRsSignOpData->K.dataLenInBytes,
+					&randData);
+
+	doCheck = 0;
+	while (icp_ocfDrvCheckALessThanB(&(dsaRsSignOpData->K),
+					 &(dsaRsSignOpData->Q), &doCheck)) {
+
+		if (CPA_STATUS_SUCCESS
+		    != cpaCyRandGen(CPA_INSTANCE_HANDLE_SINGLE,
+				    NULL, NULL, &randGenOpData, &randData)) {
+			APRINTK("%s(): ERROR - Failed to generate DSA RS Sign K"
+				"value\n", __FUNCTION__);
+			icp_ocfDrvFreeFlatBuffer(pS);
+			icp_ocfDrvFreeFlatBuffer(pR);
+			kmem_cache_free(drvDSARSSignKValue_zone,
+					dsaRsSignOpData->K.pData);
+			kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData);
+			krp->krp_status = EAGAIN;
+			return EAGAIN;
+		}
+
+		doCheck++;
+		if (DSA_SIGN_RAND_GEN_VAL_CHECK_MAX_ITERATIONS == doCheck) {
+			APRINTK("%s(): ERROR - Failed to find DSA RS Sign K "
+				"value less than Q value\n", __FUNCTION__);
+			icp_ocfDrvFreeFlatBuffer(pS);
+			icp_ocfDrvFreeFlatBuffer(pR);
+			kmem_cache_free(drvDSARSSignKValue_zone,
+					dsaRsSignOpData->K.pData);
+			kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData);
+			krp->krp_status = EAGAIN;
+			return EAGAIN;
+		}
+
+	}
+	/*Rand Data - no need to swap bytes for pK */
+
+	/* Link parameters */
+	dsaRsSignOpData->G.pData =
+	    krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_G_INDEX].crp_p;
+	BITS_TO_BYTES(dsaRsSignOpData->G.dataLenInBytes,
+		      krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_G_INDEX].crp_nbits);
+
+	icp_ocfDrvSwapBytes(dsaRsSignOpData->G.pData,
+			    dsaRsSignOpData->G.dataLenInBytes);
+
+	dsaRsSignOpData->X.pData =
+	    krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_X_INDEX].crp_p;
+	BITS_TO_BYTES(dsaRsSignOpData->X.dataLenInBytes,
+		      krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_X_INDEX].crp_nbits);
+	icp_ocfDrvSwapBytes(dsaRsSignOpData->X.pData,
+			    dsaRsSignOpData->X.dataLenInBytes);
+
+	dsaRsSignOpData->M.pData =
+	    krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_DGST_INDEX].crp_p;
+	BITS_TO_BYTES(dsaRsSignOpData->M.dataLenInBytes,
+		      krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_DGST_INDEX].
+		      crp_nbits);
+	icp_ocfDrvSwapBytes(dsaRsSignOpData->M.pData,
+			    dsaRsSignOpData->M.dataLenInBytes);
+
+	/* Output Parameters */
+	pS->pData = krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_S_RESULT_INDEX].crp_p;
+	BITS_TO_BYTES(pS->dataLenInBytes,
+		      krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_S_RESULT_INDEX].
+		      crp_nbits);
+
+	pR->pData = krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_R_RESULT_INDEX].crp_p;
+	BITS_TO_BYTES(pR->dataLenInBytes,
+		      krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_R_RESULT_INDEX].
+		      crp_nbits);
+
+	lacStatus = cpaCyDsaSignRS(CPA_INSTANCE_HANDLE_SINGLE,
+				   icp_ocfDrvDsaRSSignCallBack,
+				   callbackTag, dsaRsSignOpData,
+				   &protocolStatus, pR, pS);
+
+	if (CPA_STATUS_SUCCESS != lacStatus) {
+		EPRINTK("%s(): DSA RS Sign Operation failed (%d).\n",
+			__FUNCTION__, lacStatus);
+		krp->krp_status = ECANCELED;
+		icp_ocfDrvFreeFlatBuffer(pS);
+		icp_ocfDrvFreeFlatBuffer(pR);
+		kmem_cache_free(drvDSARSSignKValue_zone,
+				dsaRsSignOpData->K.pData);
+		kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData);
+	}
+
+	return lacStatus;
+}
+
+/* Name        : icp_ocfDrvDsaVerify
+ *
+ * Description : This function will map DSA RS Verify from OCF to the LAC API.
+ *
+ */
+static int icp_ocfDrvDsaVerify(struct cryptkop *krp)
+{
+	CpaStatus lacStatus = CPA_STATUS_SUCCESS;
+	CpaCyDsaVerifyOpData *dsaVerifyOpData = NULL;
+	void *callbackTag = NULL;
+	CpaBoolean verifyStatus = CPA_FALSE;
+
+	callbackTag = krp;
+
+	dsaVerifyOpData = kmem_cache_zalloc(drvDSAVerify_zone, GFP_KERNEL);
+	if (NULL == dsaVerifyOpData) {
+		APRINTK("%s():Failed to get memory"
+			" for DSA Verify Op data struct\n", __FUNCTION__);
+		krp->krp_status = ENOMEM;
+		return ENOMEM;
+	}
+
+	/* Link parameters */
+	dsaVerifyOpData->P.pData =
+	    krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PRIME_P_INDEX].crp_p;
+	BITS_TO_BYTES(dsaVerifyOpData->P.dataLenInBytes,
+		      krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PRIME_P_INDEX].
+		      crp_nbits);
+	icp_ocfDrvSwapBytes(dsaVerifyOpData->P.pData,
+			    dsaVerifyOpData->P.dataLenInBytes);
+
+	dsaVerifyOpData->Q.pData =
+	    krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PRIME_Q_INDEX].crp_p;
+	BITS_TO_BYTES(dsaVerifyOpData->Q.dataLenInBytes,
+		      krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PRIME_Q_INDEX].
+		      crp_nbits);
+	icp_ocfDrvSwapBytes(dsaVerifyOpData->Q.pData,
+			    dsaVerifyOpData->Q.dataLenInBytes);
+
+	dsaVerifyOpData->G.pData =
+	    krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_G_INDEX].crp_p;
+	BITS_TO_BYTES(dsaVerifyOpData->G.dataLenInBytes,
+		      krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_G_INDEX].
+		      crp_nbits);
+	icp_ocfDrvSwapBytes(dsaVerifyOpData->G.pData,
+			    dsaVerifyOpData->G.dataLenInBytes);
+
+	dsaVerifyOpData->Y.pData =
+	    krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PUBKEY_INDEX].crp_p;
+	BITS_TO_BYTES(dsaVerifyOpData->Y.dataLenInBytes,
+		      krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PUBKEY_INDEX].
+		      crp_nbits);
+	icp_ocfDrvSwapBytes(dsaVerifyOpData->Y.pData,
+			    dsaVerifyOpData->Y.dataLenInBytes);
+
+	dsaVerifyOpData->M.pData =
+	    krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_DGST_INDEX].crp_p;
+	BITS_TO_BYTES(dsaVerifyOpData->M.dataLenInBytes,
+		      krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_DGST_INDEX].
+		      crp_nbits);
+	icp_ocfDrvSwapBytes(dsaVerifyOpData->M.pData,
+			    dsaVerifyOpData->M.dataLenInBytes);
+
+	dsaVerifyOpData->R.pData =
+	    krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_SIG_R_INDEX].crp_p;
+	BITS_TO_BYTES(dsaVerifyOpData->R.dataLenInBytes,
+		      krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_SIG_R_INDEX].
+		      crp_nbits);
+	icp_ocfDrvSwapBytes(dsaVerifyOpData->R.pData,
+			    dsaVerifyOpData->R.dataLenInBytes);
+
+	dsaVerifyOpData->S.pData =
+	    krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_SIG_S_INDEX].crp_p;
+	BITS_TO_BYTES(dsaVerifyOpData->S.dataLenInBytes,
+		      krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_SIG_S_INDEX].
+		      crp_nbits);
+	icp_ocfDrvSwapBytes(dsaVerifyOpData->S.pData,
+			    dsaVerifyOpData->S.dataLenInBytes);
+
+	lacStatus = cpaCyDsaVerify(CPA_INSTANCE_HANDLE_SINGLE,
+				   icp_ocfDrvDsaVerifyCallBack,
+				   callbackTag, dsaVerifyOpData, &verifyStatus);
+
+	if (CPA_STATUS_SUCCESS != lacStatus) {
+		EPRINTK("%s(): DSA Verify Operation failed (%d).\n",
+			__FUNCTION__, lacStatus);
+		kmem_cache_free(drvDSAVerify_zone, dsaVerifyOpData);
+		krp->krp_status = ECANCELED;
+	}
+
+	return lacStatus;
+}
+
+/* Name        : icp_ocfDrvReadRandom
+ *
+ * Description : This function will map RNG functionality calls from OCF
+ * to the LAC API.
+ */
+int icp_ocfDrvReadRandom(void *arg, uint32_t * buf, int maxwords)
+{
+	CpaStatus lacStatus = CPA_STATUS_SUCCESS;
+	CpaCyRandGenOpData randGenOpData;
+	CpaFlatBuffer randData;
+
+	if (NULL == buf) {
+		APRINTK("%s(): Invalid input parameters\n", __FUNCTION__);
+		return EINVAL;
+	}
+
+	/* maxwords here is number of integers to generate data for */
+	randGenOpData.generateBits = CPA_TRUE;
+
+	randGenOpData.lenInBytes = maxwords * sizeof(uint32_t);
+
+	icp_ocfDrvPtrAndLenToFlatBuffer((Cpa8U *) buf,
+					randGenOpData.lenInBytes, &randData);
+
+	lacStatus = cpaCyRandGen(CPA_INSTANCE_HANDLE_SINGLE,
+				 NULL, NULL, &randGenOpData, &randData);
+	if (CPA_STATUS_SUCCESS != lacStatus) {
+		EPRINTK("%s(): icp_LacSymRandGen failed (%d). \n",
+			__FUNCTION__, lacStatus);
+		return RETURN_RAND_NUM_GEN_FAILED;
+	}
+
+	return randGenOpData.lenInBytes / sizeof(uint32_t);
+}
+
+/* Name        : icp_ocfDrvDhP1Callback
+ *
+ * Description : When this function returns it signifies that the LAC
+ * component has completed the DH operation.
+ */
+static void
+icp_ocfDrvDhP1CallBack(void *callbackTag,
+		       CpaStatus status,
+		       void *pOpData, CpaFlatBuffer * pLocalOctetStringPV)
+{
+	struct cryptkop *krp = NULL;
+	CpaCyDhPhase1KeyGenOpData *pPhase1OpData = NULL;
+
+	if (NULL == callbackTag) {
+		DPRINTK("%s(): Invalid input parameters - "
+			"callbackTag data is NULL\n", __FUNCTION__);
+		return;
+	}
+	krp = (struct cryptkop *)callbackTag;
+
+	if (NULL == pOpData) {
+		DPRINTK("%s(): Invalid input parameters - "
+			"Operation Data is NULL\n", __FUNCTION__);
+		krp->krp_status = ECANCELED;
+		crypto_kdone(krp);
+		return;
+	}
+	pPhase1OpData = (CpaCyDhPhase1KeyGenOpData *) pOpData;
+
+	if (NULL == pLocalOctetStringPV) {
+		DPRINTK("%s(): Invalid input parameters - "
+			"pLocalOctetStringPV Data is NULL\n", __FUNCTION__);
+		memset(pPhase1OpData, 0, sizeof(CpaCyDhPhase1KeyGenOpData));
+		kmem_cache_free(drvDH_zone, pPhase1OpData);
+		krp->krp_status = ECANCELED;
+		crypto_kdone(krp);
+		return;
+	}
+
+	if (CPA_STATUS_SUCCESS == status) {
+		krp->krp_status = CRYPTO_OP_SUCCESS;
+	} else {
+		APRINTK("%s(): Diffie Hellman Phase1 Key Gen failed - "
+			"Operation Status = %d\n", __FUNCTION__, status);
+		krp->krp_status = ECANCELED;
+	}
+
+	icp_ocfDrvSwapBytes(pLocalOctetStringPV->pData,
+			    pLocalOctetStringPV->dataLenInBytes);
+
+	icp_ocfDrvFreeFlatBuffer(pLocalOctetStringPV);
+	memset(pPhase1OpData, 0, sizeof(CpaCyDhPhase1KeyGenOpData));
+	kmem_cache_free(drvDH_zone, pPhase1OpData);
+
+	crypto_kdone(krp);
+
+	return;
+}
+
+/* Name        : icp_ocfDrvModExpCallBack
+ *
+ * Description : When this function returns it signifies that the LAC
+ * component has completed the Mod Exp operation.
+ */
+static void
+icp_ocfDrvModExpCallBack(void *callbackTag,
+			 CpaStatus status,
+			 void *pOpdata, CpaFlatBuffer * pResult)
+{
+	struct cryptkop *krp = NULL;
+	CpaCyLnModExpOpData *pLnModExpOpData = NULL;
+
+	if (NULL == callbackTag) {
+		DPRINTK("%s(): Invalid input parameters - "
+			"callbackTag data is NULL\n", __FUNCTION__);
+		return;
+	}
+	krp = (struct cryptkop *)callbackTag;
+
+	if (NULL == pOpdata) {
+		DPRINTK("%s(): Invalid Mod Exp input parameters - "
+			"Operation Data is NULL\n", __FUNCTION__);
+		krp->krp_status = ECANCELED;
+		crypto_kdone(krp);
+		return;
+	}
+	pLnModExpOpData = (CpaCyLnModExpOpData *) pOpdata;
+
+	if (NULL == pResult) {
+		DPRINTK("%s(): Invalid input parameters - "
+			"pResult data is NULL\n", __FUNCTION__);
+		krp->krp_status = ECANCELED;
+		memset(pLnModExpOpData, 0, sizeof(CpaCyLnModExpOpData));
+		kmem_cache_free(drvLnModExp_zone, pLnModExpOpData);
+		crypto_kdone(krp);
+		return;
+	}
+
+	if (CPA_STATUS_SUCCESS == status) {
+		krp->krp_status = CRYPTO_OP_SUCCESS;
+	} else {
+		APRINTK("%s(): LAC Mod Exp Operation failed - "
+			"Operation Status = %d\n", __FUNCTION__, status);
+		krp->krp_status = ECANCELED;
+	}
+
+	icp_ocfDrvSwapBytes(pResult->pData, pResult->dataLenInBytes);
+
+	/*switch base size value back to original */
+	if (pLnModExpOpData->base.pData ==
+	    (uint8_t *) & (krp->
+			   krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].
+			   crp_nbits)) {
+		*((uint32_t *) pLnModExpOpData->base.pData) =
+		    ntohl(*((uint32_t *) pLnModExpOpData->base.pData));
+	}
+	icp_ocfDrvFreeFlatBuffer(pResult);
+	memset(pLnModExpOpData, 0, sizeof(CpaCyLnModExpOpData));
+	kmem_cache_free(drvLnModExp_zone, pLnModExpOpData);
+
+	crypto_kdone(krp);
+
+	return;
+
+}
+
+/* Name        : icp_ocfDrvModExpCRTCallBack
+ *
+ * Description : When this function returns it signifies that the LAC
+ * component has completed the Mod Exp CRT operation.
+ */
+static void
+icp_ocfDrvModExpCRTCallBack(void *callbackTag,
+			    CpaStatus status,
+			    void *pOpData, CpaFlatBuffer * pOutputData)
+{
+	struct cryptkop *krp = NULL;
+	CpaCyRsaDecryptOpData *pDecryptData = NULL;
+
+	if (NULL == callbackTag) {
+		DPRINTK("%s(): Invalid input parameters - "
+			"callbackTag data is NULL\n", __FUNCTION__);
+		return;
+	}
+
+	krp = (struct cryptkop *)callbackTag;
+
+	if (NULL == pOpData) {
+		DPRINTK("%s(): Invalid input parameters - "
+			"Operation Data is NULL\n", __FUNCTION__);
+		krp->krp_status = ECANCELED;
+		crypto_kdone(krp);
+		return;
+	}
+	pDecryptData = (CpaCyRsaDecryptOpData *) pOpData;
+
+	if (NULL == pOutputData) {
+		DPRINTK("%s(): Invalid input parameter - "
+			"pOutputData is NULL\n", __FUNCTION__);
+		memset(pDecryptData->pRecipientPrivateKey, 0,
+		       sizeof(CpaCyRsaPrivateKey));
+		kmem_cache_free(drvRSAPrivateKey_zone,
+				pDecryptData->pRecipientPrivateKey);
+		memset(pDecryptData, 0, sizeof(CpaCyRsaDecryptOpData));
+		kmem_cache_free(drvRSADecrypt_zone, pDecryptData);
+		krp->krp_status = ECANCELED;
+		crypto_kdone(krp);
+		return;
+	}
+
+	if (CPA_STATUS_SUCCESS == status) {
+		krp->krp_status = CRYPTO_OP_SUCCESS;
+	} else {
+		APRINTK("%s(): LAC Mod Exp CRT operation failed - "
+			"Operation Status = %d\n", __FUNCTION__, status);
+		krp->krp_status = ECANCELED;
+	}
+
+	icp_ocfDrvSwapBytes(pOutputData->pData, pOutputData->dataLenInBytes);
+
+	icp_ocfDrvFreeFlatBuffer(pOutputData);
+	memset(pDecryptData->pRecipientPrivateKey, 0,
+	       sizeof(CpaCyRsaPrivateKey));
+	kmem_cache_free(drvRSAPrivateKey_zone,
+			pDecryptData->pRecipientPrivateKey);
+	memset(pDecryptData, 0, sizeof(CpaCyRsaDecryptOpData));
+	kmem_cache_free(drvRSADecrypt_zone, pDecryptData);
+
+	crypto_kdone(krp);
+
+	return;
+}
+
+/* Name        : icp_ocfDrvDsaRSSignCallBack
+ *
+ * Description : When this function returns it signifies that the LAC
+ * component has completed the DSA RS sign operation.
+ */
+static void
+icp_ocfDrvDsaRSSignCallBack(void *callbackTag,
+			    CpaStatus status,
+			    void *pOpData,
+			    CpaBoolean protocolStatus,
+			    CpaFlatBuffer * pR, CpaFlatBuffer * pS)
+{
+	struct cryptkop *krp = NULL;
+	CpaCyDsaRSSignOpData *pSignData = NULL;
+
+	if (NULL == callbackTag) {
+		DPRINTK("%s(): Invalid input parameters - "
+			"callbackTag data is NULL\n", __FUNCTION__);
+		return;
+	}
+
+	krp = (struct cryptkop *)callbackTag;
+
+	if (NULL == pOpData) {
+		DPRINTK("%s(): Invalid input parameters - "
+			"Operation Data is NULL\n", __FUNCTION__);
+		krp->krp_status = ECANCELED;
+		crypto_kdone(krp);
+		return;
+	}
+	pSignData = (CpaCyDsaRSSignOpData *) pOpData;
+
+	if (NULL == pR) {
+		DPRINTK("%s(): Invalid input parameter - "
+			"pR sign is NULL\n", __FUNCTION__);
+		icp_ocfDrvFreeFlatBuffer(pS);
+		kmem_cache_free(drvDSARSSign_zone, pSignData);
+		krp->krp_status = ECANCELED;
+		crypto_kdone(krp);
+		return;
+	}
+
+	if (NULL == pS) {
+		DPRINTK("%s(): Invalid input parameter - "
+			"pS sign is NULL\n", __FUNCTION__);
+		icp_ocfDrvFreeFlatBuffer(pR);
+		kmem_cache_free(drvDSARSSign_zone, pSignData);
+		krp->krp_status = ECANCELED;
+		crypto_kdone(krp);
+		return;
+	}
+
+	if (CPA_STATUS_SUCCESS != status) {
+		APRINTK("%s(): LAC DSA RS Sign operation failed - "
+			"Operation Status = %d\n", __FUNCTION__, status);
+		krp->krp_status = ECANCELED;
+	} else {
+		krp->krp_status = CRYPTO_OP_SUCCESS;
+
+		if (CPA_TRUE != protocolStatus) {
+			DPRINTK("%s(): LAC DSA RS Sign operation failed due "
+				"to protocol error\n", __FUNCTION__);
+			krp->krp_status = EIO;
+		}
+	}
+
+	/* Swap bytes only when the callback status is successful and
+	   protocolStatus is set to true */
+	if (CPA_STATUS_SUCCESS == status && CPA_TRUE == protocolStatus) {
+		icp_ocfDrvSwapBytes(pR->pData, pR->dataLenInBytes);
+		icp_ocfDrvSwapBytes(pS->pData, pS->dataLenInBytes);
+	}
+
+	icp_ocfDrvFreeFlatBuffer(pR);
+	icp_ocfDrvFreeFlatBuffer(pS);
+	memset(pSignData->K.pData, 0, pSignData->K.dataLenInBytes);
+	kmem_cache_free(drvDSARSSignKValue_zone, pSignData->K.pData);
+	memset(pSignData, 0, sizeof(CpaCyDsaRSSignOpData));
+	kmem_cache_free(drvDSARSSign_zone, pSignData);
+	crypto_kdone(krp);
+
+	return;
+}
+
+/* Name        : icp_ocfDrvDsaVerifyCallback
+ *
+ * Description : When this function returns it signifies that the LAC
+ * component has completed the DSA Verify operation.
+ */
+static void
+icp_ocfDrvDsaVerifyCallBack(void *callbackTag,
+			    CpaStatus status,
+			    void *pOpData, CpaBoolean verifyStatus)
+{
+
+	struct cryptkop *krp = NULL;
+	CpaCyDsaVerifyOpData *pVerData = NULL;
+
+	if (NULL == callbackTag) {
+		DPRINTK("%s(): Invalid input parameters - "
+			"callbackTag data is NULL\n", __FUNCTION__);
+		return;
+	}
+
+	krp = (struct cryptkop *)callbackTag;
+
+	if (NULL == pOpData) {
+		DPRINTK("%s(): Invalid input parameters - "
+			"Operation Data is NULL\n", __FUNCTION__);
+		krp->krp_status = ECANCELED;
+		crypto_kdone(krp);
+		return;
+	}
+	pVerData = (CpaCyDsaVerifyOpData *) pOpData;
+
+	if (CPA_STATUS_SUCCESS != status) {
+		APRINTK("%s(): LAC DSA Verify operation failed - "
+			"Operation Status = %d\n", __FUNCTION__, status);
+		krp->krp_status = ECANCELED;
+	} else {
+		krp->krp_status = CRYPTO_OP_SUCCESS;
+
+		if (CPA_TRUE != verifyStatus) {
+			DPRINTK("%s(): DSA signature invalid\n", __FUNCTION__);
+			krp->krp_status = EIO;
+		}
+	}
+
+	/* Swap bytes only when the callback status is successful and
+	   verifyStatus is set to true */
+	/*Just swapping back the key values for now. Possibly all
+	   swapped buffers need to be reverted */
+	if (CPA_STATUS_SUCCESS == status && CPA_TRUE == verifyStatus) {
+		icp_ocfDrvSwapBytes(pVerData->R.pData,
+				    pVerData->R.dataLenInBytes);
+		icp_ocfDrvSwapBytes(pVerData->S.pData,
+				    pVerData->S.dataLenInBytes);
+	}
+
+	memset(pVerData, 0, sizeof(CpaCyDsaVerifyOpData));
+	kmem_cache_free(drvDSAVerify_zone, pVerData);
+	crypto_kdone(krp);
+
+	return;
+}
diff -Nur linux-2.6.29.1.orig/crypto/ocf/ep80579/icp_common.c linux-2.6.29.1/crypto/ocf/ep80579/icp_common.c
--- linux-2.6.29.1.orig/crypto/ocf/ep80579/icp_common.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/ep80579/icp_common.c	2009-04-20 20:01:21.432551806 +0200
@@ -0,0 +1,891 @@
+/***************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or 
+ *   redistributing this file, you may do so under either license.
+ * 
+ *   GPL LICENSE SUMMARY
+ * 
+ *   Copyright(c) 2007,2008 Intel Corporation. All rights reserved.
+ * 
+ *   This program is free software; you can redistribute it and/or modify 
+ *   it under the terms of version 2 of the GNU General Public License as
+ *   published by the Free Software Foundation.
+ * 
+ *   This program is distributed in the hope that it will be useful, but 
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of 
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU 
+ *   General Public License for more details.
+ * 
+ *   You should have received a copy of the GNU General Public License 
+ *   along with this program; if not, write to the Free Software 
+ *   Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *   The full GNU General Public License is included in this distribution 
+ *   in the file called LICENSE.GPL.
+ * 
+ *   Contact Information:
+ *   Intel Corporation
+ * 
+ *   BSD LICENSE 
+ * 
+ *   Copyright(c) 2007,2008 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ * 
+ *   Redistribution and use in source and binary forms, with or without 
+ *   modification, are permitted provided that the following conditions 
+ *   are met:
+ * 
+ *     * Redistributions of source code must retain the above copyright 
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright 
+ *       notice, this list of conditions and the following disclaimer in 
+ *       the documentation and/or other materials provided with the 
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its 
+ *       contributors may be used to endorse or promote products derived 
+ *       from this software without specific prior written permission.
+ * 
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * 
+ *  version: Security.L.1.0.130
+ *
+ ***************************************************************************/
+
+/*
+ * An OCF module that uses Intel® QuickAssist Integrated Accelerator to do the 
+ * crypto.
+ *
+ * This driver requires the ICP Access Library that is available from Intel in
+ * order to operate.
+ */
+
+#include "icp_ocf.h"
+
+#define ICP_OCF_COMP_NAME 			"ICP_OCF"
+#define ICP_OCF_VER_MAIN			(2)
+#define ICP_OCF_VER_MJR				(0)
+#define ICP_OCF_VER_MNR 			(0)
+
+#define MAX_DEREG_RETRIES 			(100)
+#define DEFAULT_DEREG_RETRIES 			(10)
+#define DEFAULT_DEREG_DELAY_IN_JIFFIES		(10)
+
+/* This defines the maximum number of sessions possible between OCF
+   and the OCF Tolapai Driver. If set to zero, there is no limit. */
+#define DEFAULT_OCF_TO_DRV_MAX_SESSION_COUNT	(0)
+#define NUM_SUPPORTED_CAPABILITIES		(21)
+
+/*Slabs zones*/
+struct kmem_cache *drvSessionData_zone = NULL;
+struct kmem_cache *drvOpData_zone = NULL;
+struct kmem_cache *drvDH_zone = NULL;
+struct kmem_cache *drvLnModExp_zone = NULL;
+struct kmem_cache *drvRSADecrypt_zone = NULL;
+struct kmem_cache *drvRSAPrivateKey_zone = NULL;
+struct kmem_cache *drvDSARSSign_zone = NULL;
+struct kmem_cache *drvDSARSSignKValue_zone = NULL;
+struct kmem_cache *drvDSAVerify_zone = NULL;
+
+/*Slab zones for flatbuffers and bufferlist*/
+struct kmem_cache *drvFlatBuffer_zone = NULL;
+
+static int icp_ocfDrvInit(void);
+static void icp_ocfDrvExit(void);
+static void icp_ocfDrvFreeCaches(void);
+static void icp_ocfDrvDeferedFreeLacSessionProcess(void *arg);
+
+int32_t icp_ocfDrvDriverId = INVALID_DRIVER_ID;
+
+/* Module parameter - gives the number of times LAC deregistration shall be
+   re-tried */
+int num_dereg_retries = DEFAULT_DEREG_RETRIES;
+
+/* Module parameter - gives the delay time in jiffies before a LAC session 
+   shall be attempted to be deregistered again */
+int dereg_retry_delay_in_jiffies = DEFAULT_DEREG_DELAY_IN_JIFFIES;
+
+/* Module parameter - gives the maximum number of sessions possible between
+   OCF and the OCF Tolapai Driver. If set to zero, there is no limit.*/
+int max_sessions = DEFAULT_OCF_TO_DRV_MAX_SESSION_COUNT;
+
+/* This is set when the module is removed from the system, no further
+   processing can take place if this is set */
+atomic_t icp_ocfDrvIsExiting = ATOMIC_INIT(0);
+
+/* This is used to show how many lac sessions were not deregistered*/
+atomic_t lac_session_failed_dereg_count = ATOMIC_INIT(0);
+
+/* This is used to track the number of registered sessions between OCF and
+ * and the OCF Tolapai driver, when max_session is set to value other than
+ * zero. This ensures that the max_session set for the OCF and the driver
+ * is equal to the LAC registered sessions */
+atomic_t num_ocf_to_drv_registered_sessions = ATOMIC_INIT(0);
+
+/* Head of linked list used to store session data */
+struct list_head icp_ocfDrvGlobalSymListHead;
+struct list_head icp_ocfDrvGlobalSymListHead_FreeMemList;
+
+spinlock_t icp_ocfDrvSymSessInfoListSpinlock = SPIN_LOCK_UNLOCKED;
+rwlock_t icp_kmem_cache_destroy_alloc_lock = RW_LOCK_UNLOCKED;
+
+struct workqueue_struct *icp_ocfDrvFreeLacSessionWorkQ;
+
+struct icp_drvBuffListInfo defBuffListInfo;
+
+static struct {
+	softc_device_decl sc_dev;
+} icpDev;
+
+static device_method_t icp_methods = {
+	/* crypto device methods */
+	DEVMETHOD(cryptodev_newsession, icp_ocfDrvNewSession),
+	DEVMETHOD(cryptodev_freesession, icp_ocfDrvFreeLACSession),
+	DEVMETHOD(cryptodev_process, icp_ocfDrvSymProcess),
+	DEVMETHOD(cryptodev_kprocess, icp_ocfDrvPkeProcess),
+};
+
+module_param(num_dereg_retries, int, S_IRUGO);
+module_param(dereg_retry_delay_in_jiffies, int, S_IRUGO);
+module_param(max_sessions, int, S_IRUGO);
+
+MODULE_PARM_DESC(num_dereg_retries,
+		 "Number of times to retry LAC Sym Session Deregistration. "
+		 "Default 10, Max 100");
+MODULE_PARM_DESC(dereg_retry_delay_in_jiffies, "Delay in jiffies "
+		 "(added to a schedule() function call) before a LAC Sym "
+		 "Session Dereg is retried. Default 10");
+MODULE_PARM_DESC(max_sessions, "This sets the maximum number of sessions "
+		 "between OCF and this driver. If this value is set to zero, "
+		 "max session count checking is disabled. Default is zero(0)");
+
+/* Name        : icp_ocfDrvInit
+ *
+ * Description : This function will register all the symmetric and asymmetric
+ * functionality that will be accelerated by the hardware. It will also
+ * get a unique driver ID from the OCF and initialise all slab caches
+ */
+static int __init icp_ocfDrvInit(void)
+{
+	int ocfStatus = 0;
+
+	IPRINTK("=== %s ver %d.%d.%d ===\n", ICP_OCF_COMP_NAME,
+		ICP_OCF_VER_MAIN, ICP_OCF_VER_MJR, ICP_OCF_VER_MNR);
+
+	if (MAX_DEREG_RETRIES < num_dereg_retries) {
+		EPRINTK("Session deregistration retry count set to greater "
+			"than %d", MAX_DEREG_RETRIES);
+		return -1;
+	}
+
+	/* Initialize and Start the Cryptographic component */
+	if (CPA_STATUS_SUCCESS !=
+	    cpaCyStartInstance(CPA_INSTANCE_HANDLE_SINGLE)) {
+		EPRINTK("Failed to initialize and start the instance "
+			"of the Cryptographic component.\n");
+		return -1;
+	}
+
+	/* Set the default size of BufferList to allocate */
+	memset(&defBuffListInfo, 0, sizeof(struct icp_drvBuffListInfo));
+	if (ICP_OCF_DRV_STATUS_SUCCESS !=
+	    icp_ocfDrvBufferListMemInfo(ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS,
+					&defBuffListInfo)) {
+		EPRINTK("Failed to get bufferlist memory info.\n");
+		return -1;
+	}
+
+	/*Register OCF Tolapai Driver with OCF */
+	memset(&icpDev, 0, sizeof(icpDev));
+	softc_device_init(&icpDev, "icp", 0, icp_methods);
+
+	icp_ocfDrvDriverId = crypto_get_driverid(softc_get_device(&icpDev),
+						 CRYPTOCAP_F_HARDWARE);
+
+	if (icp_ocfDrvDriverId < 0) {
+		EPRINTK("%s : ICP driver failed to register with OCF!\n",
+			__FUNCTION__);
+		return -ENODEV;
+	}
+
+	/*Create all the slab caches used by the OCF Tolapai Driver */
+	drvSessionData_zone =
+	    ICP_CACHE_CREATE("ICP Session Data", struct icp_drvSessionData);
+	ICP_CACHE_NULL_CHECK(drvSessionData_zone);
+
+	/* 
+	 * Allocation of the OpData includes the allocation space for meta data.
+	 * The memory after the opData structure is reserved for this meta data.
+	 */
+	drvOpData_zone =
+	    kmem_cache_create("ICP Op Data", sizeof(struct icp_drvOpData) +
+	            defBuffListInfo.metaSize ,0, SLAB_HWCACHE_ALIGN, NULL, NULL);
+
+
+	ICP_CACHE_NULL_CHECK(drvOpData_zone);
+
+	drvDH_zone = ICP_CACHE_CREATE("ICP DH data", CpaCyDhPhase1KeyGenOpData);
+	ICP_CACHE_NULL_CHECK(drvDH_zone);
+
+	drvLnModExp_zone =
+	    ICP_CACHE_CREATE("ICP ModExp data", CpaCyLnModExpOpData);
+	ICP_CACHE_NULL_CHECK(drvLnModExp_zone);
+
+	drvRSADecrypt_zone =
+	    ICP_CACHE_CREATE("ICP RSA decrypt data", CpaCyRsaDecryptOpData);
+	ICP_CACHE_NULL_CHECK(drvRSADecrypt_zone);
+
+	drvRSAPrivateKey_zone =
+	    ICP_CACHE_CREATE("ICP RSA private key data", CpaCyRsaPrivateKey);
+	ICP_CACHE_NULL_CHECK(drvRSAPrivateKey_zone);
+
+	drvDSARSSign_zone =
+	    ICP_CACHE_CREATE("ICP DSA Sign", CpaCyDsaRSSignOpData);
+	ICP_CACHE_NULL_CHECK(drvDSARSSign_zone);
+
+	/*too awkward to use a macro here */
+	drvDSARSSignKValue_zone =
+	    kmem_cache_create("ICP DSA Sign Rand Val",
+			      DSA_RS_SIGN_PRIMEQ_SIZE_IN_BYTES, 0,
+			      SLAB_HWCACHE_ALIGN, NULL, NULL);
+	ICP_CACHE_NULL_CHECK(drvDSARSSignKValue_zone);
+
+	drvDSAVerify_zone =
+	    ICP_CACHE_CREATE("ICP DSA Verify", CpaCyDsaVerifyOpData);
+	ICP_CACHE_NULL_CHECK(drvDSAVerify_zone);
+
+	drvFlatBuffer_zone =
+	    ICP_CACHE_CREATE("ICP Flat Buffers", CpaFlatBuffer);
+	ICP_CACHE_NULL_CHECK(drvFlatBuffer_zone);
+
+	/* Register the ICP symmetric crypto support. */
+	ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_NULL_CBC);
+	ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_DES_CBC);
+	ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_3DES_CBC);
+	ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_AES_CBC);
+	ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_ARC4);
+	ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_MD5);
+	ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_MD5_HMAC);
+	ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA1);
+	ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA1_HMAC);
+	ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_256);
+	ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_256_HMAC);
+	ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_384);
+	ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_384_HMAC);
+	ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_512);
+	ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_512_HMAC);
+
+	/* Register the ICP asymmetric algorithm support */
+	ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_DH_COMPUTE_KEY);
+	ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_MOD_EXP);
+	ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_MOD_EXP_CRT);
+	ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_DSA_SIGN);
+	ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_DSA_VERIFY);
+
+	/* Register the ICP random number generator support */
+	if (OCF_REGISTRATION_STATUS_SUCCESS ==
+	    crypto_rregister(icp_ocfDrvDriverId, icp_ocfDrvReadRandom, NULL)) {
+		ocfStatus++;
+	}
+
+	if (OCF_ZERO_FUNCTIONALITY_REGISTERED == ocfStatus) {
+		DPRINTK("%s: Failed to register any device capabilities\n",
+			__FUNCTION__);
+		icp_ocfDrvFreeCaches();
+		icp_ocfDrvDriverId = INVALID_DRIVER_ID;
+		return -ECANCELED;
+	}
+
+	DPRINTK("%s: Registered %d of %d device capabilities\n",
+		__FUNCTION__, ocfStatus, NUM_SUPPORTED_CAPABILITIES);
+
+/*Session data linked list used during module exit*/
+	INIT_LIST_HEAD(&icp_ocfDrvGlobalSymListHead);
+	INIT_LIST_HEAD(&icp_ocfDrvGlobalSymListHead_FreeMemList);
+
+	icp_ocfDrvFreeLacSessionWorkQ =
+	    create_singlethread_workqueue("ocfLacDeregWorkQueue");
+
+	return 0;
+}
+
+/* Name        : icp_ocfDrvExit
+ *
+ * Description : This function will deregister all the symmetric sessions
+ * registered with the LAC component. It will also deregister all symmetric
+ * and asymmetric functionality that can be accelerated by the hardware via OCF
+ * and random number generation if it is enabled.
+ */
+static void icp_ocfDrvExit(void)
+{
+	CpaStatus lacStatus = CPA_STATUS_SUCCESS;
+	struct icp_drvSessionData *sessionData = NULL;
+	struct icp_drvSessionData *tempSessionData = NULL;
+	int i, remaining_delay_time_in_jiffies = 0;
+	/* There is a possibility of a process or new session command being   */
+	/* sent before this variable is incremented. The aim of this variable */
+	/* is to stop a loop of calls creating a deadlock situation which     */
+	/* would prevent the driver from exiting.                             */
+
+	atomic_inc(&icp_ocfDrvIsExiting);
+
+	/*Existing sessions will be routed to another driver after these calls */
+	crypto_unregister_all(icp_ocfDrvDriverId);
+	crypto_runregister_all(icp_ocfDrvDriverId);
+
+	/*If any sessions are waiting to be deregistered, do that. This also 
+	   flushes the work queue */
+	destroy_workqueue(icp_ocfDrvFreeLacSessionWorkQ);
+
+	/*ENTER CRITICAL SECTION */
+	spin_lock_bh(&icp_ocfDrvSymSessInfoListSpinlock);
+	list_for_each_entry_safe(tempSessionData, sessionData,
+				 &icp_ocfDrvGlobalSymListHead, listNode) {
+		for (i = 0; i < num_dereg_retries; i++) {
+			/*No harm if bad input - LAC will handle error cases */
+			if (ICP_SESSION_RUNNING == tempSessionData->inUse) {
+				lacStatus =
+				    cpaCySymRemoveSession
+				    (CPA_INSTANCE_HANDLE_SINGLE,
+				     tempSessionData->sessHandle);
+				if (CPA_STATUS_SUCCESS == lacStatus) {
+					/* Succesfully deregistered */
+					break;
+				} else if (CPA_STATUS_RETRY != lacStatus) {
+					atomic_inc
+					    (&lac_session_failed_dereg_count);
+					break;
+				}
+
+				/*schedule_timout returns the time left for completion if 
+				 * this task is set to TASK_INTERRUPTIBLE */
+				remaining_delay_time_in_jiffies =
+				    dereg_retry_delay_in_jiffies;
+				while (0 > remaining_delay_time_in_jiffies) {
+					remaining_delay_time_in_jiffies =
+					    schedule_timeout
+					    (remaining_delay_time_in_jiffies);
+				}
+
+				DPRINTK
+				    ("%s(): Retry %d to deregistrate the session\n",
+				     __FUNCTION__, i);
+			}
+		}
+
+		/*remove from current list */
+		list_del(&(tempSessionData->listNode));
+		/*add to free mem linked list */
+		list_add(&(tempSessionData->listNode),
+			 &icp_ocfDrvGlobalSymListHead_FreeMemList);
+
+	}
+
+	/*EXIT CRITICAL SECTION */
+	spin_unlock_bh(&icp_ocfDrvSymSessInfoListSpinlock);
+
+	/*set back to initial values */
+	sessionData = NULL;
+	/*still have a reference in our list! */
+	tempSessionData = NULL;
+	/*free memory */
+	list_for_each_entry_safe(tempSessionData, sessionData,
+				 &icp_ocfDrvGlobalSymListHead_FreeMemList,
+				 listNode) {
+
+		list_del(&(tempSessionData->listNode));
+		/* Free allocated CpaCySymSessionCtx */
+		if (NULL != tempSessionData->sessHandle) {
+			kfree(tempSessionData->sessHandle);
+		}
+		memset(tempSessionData, 0, sizeof(struct icp_drvSessionData));
+		kmem_cache_free(drvSessionData_zone, tempSessionData);
+	}
+
+	if (0 != atomic_read(&lac_session_failed_dereg_count)) {
+		DPRINTK("%s(): %d LAC sessions were not deregistered "
+			"correctly. This is not a clean exit! \n",
+			__FUNCTION__,
+			atomic_read(&lac_session_failed_dereg_count));
+	}
+
+	icp_ocfDrvFreeCaches();
+	icp_ocfDrvDriverId = INVALID_DRIVER_ID;
+
+	/* Shutdown the Cryptographic component */
+	lacStatus = cpaCyStopInstance(CPA_INSTANCE_HANDLE_SINGLE);
+	if (CPA_STATUS_SUCCESS != lacStatus) {
+		DPRINTK("%s(): Failed to stop instance of the "
+			"Cryptographic component.(status == %d)\n",
+			__FUNCTION__, lacStatus);
+	}
+
+}
+
+/* Name        : icp_ocfDrvFreeCaches
+ *
+ * Description : This function deregisters all slab caches
+ */
+static void icp_ocfDrvFreeCaches(void)
+{
+	if (atomic_read(&icp_ocfDrvIsExiting) != CPA_TRUE) {
+		atomic_set(&icp_ocfDrvIsExiting, 1);
+	}
+
+	/*Sym Zones */
+	ICP_CACHE_DESTROY(drvSessionData_zone);
+	ICP_CACHE_DESTROY(drvOpData_zone);
+
+	/*Asym zones */
+	ICP_CACHE_DESTROY(drvDH_zone);
+	ICP_CACHE_DESTROY(drvLnModExp_zone);
+	ICP_CACHE_DESTROY(drvRSADecrypt_zone);
+	ICP_CACHE_DESTROY(drvRSAPrivateKey_zone);
+	ICP_CACHE_DESTROY(drvDSARSSignKValue_zone);
+	ICP_CACHE_DESTROY(drvDSARSSign_zone);
+	ICP_CACHE_DESTROY(drvDSAVerify_zone);
+
+	/*FlatBuffer and BufferList Zones */
+	ICP_CACHE_DESTROY(drvFlatBuffer_zone);
+
+}
+
+/* Name        : icp_ocfDrvDeregRetry
+ *
+ * Description : This function will try to farm the session deregistration
+ * off to a work queue. If it fails, nothing more can be done and it
+ * returns an error
+ */
+
+int icp_ocfDrvDeregRetry(CpaCySymSessionCtx sessionToDeregister)
+{
+	struct icp_ocfDrvFreeLacSession *workstore = NULL;
+
+	DPRINTK("%s(): Retry - Deregistering session (%p)\n",
+		__FUNCTION__, sessionToDeregister);
+
+	/*make sure the session is not available to be allocated during this
+	   process */
+	atomic_inc(&lac_session_failed_dereg_count);
+
+	/*Farm off to work queue */
+	workstore =
+	    kmalloc(sizeof(struct icp_ocfDrvFreeLacSession), GFP_ATOMIC);
+	if (NULL == workstore) {
+		DPRINTK("%s(): unable to free session - no memory available "
+			"for work queue\n", __FUNCTION__);
+		return ENOMEM;
+	}
+
+	workstore->sessionToDeregister = sessionToDeregister;
+
+	INIT_WORK(&(workstore->work), icp_ocfDrvDeferedFreeLacSessionProcess,
+		  workstore);
+	queue_work(icp_ocfDrvFreeLacSessionWorkQ, &(workstore->work));
+
+	return ICP_OCF_DRV_STATUS_SUCCESS;
+
+}
+
+/* Name        : icp_ocfDrvDeferedFreeLacSessionProcess
+ *
+ * Description : This function will retry (module input parameter)
+ * 'num_dereg_retries' times to deregister any symmetric session that recieves a
+ * CPA_STATUS_RETRY message from the LAC component. This function is run in
+ * Thread context because it is called from a worker thread
+ */
+static void icp_ocfDrvDeferedFreeLacSessionProcess(void *arg)
+{
+	struct icp_ocfDrvFreeLacSession *workstore = NULL;
+	CpaCySymSessionCtx sessionToDeregister = NULL;
+	int i = 0;
+	int remaining_delay_time_in_jiffies = 0;
+	CpaStatus lacStatus = CPA_STATUS_SUCCESS;
+
+	workstore = (struct icp_ocfDrvFreeLacSession *)arg;
+	if (NULL == workstore) {
+		DPRINTK("%s() function called with null parameter \n",
+			__FUNCTION__);
+		return;
+	}
+
+	sessionToDeregister = workstore->sessionToDeregister;
+	kfree(workstore);
+
+	/*if exiting, give deregistration one more blast only */
+	if (atomic_read(&icp_ocfDrvIsExiting) == CPA_TRUE) {
+		lacStatus = cpaCySymRemoveSession(CPA_INSTANCE_HANDLE_SINGLE,
+						  sessionToDeregister);
+
+		if (lacStatus != CPA_STATUS_SUCCESS) {
+			DPRINTK("%s() Failed to Dereg LAC session %p "
+				"during module exit\n", __FUNCTION__,
+				sessionToDeregister);
+			return;
+		}
+
+		atomic_dec(&lac_session_failed_dereg_count);
+		return;
+	}
+
+	for (i = 0; i <= num_dereg_retries; i++) {
+		lacStatus = cpaCySymRemoveSession(CPA_INSTANCE_HANDLE_SINGLE,
+						  sessionToDeregister);
+
+		if (lacStatus == CPA_STATUS_SUCCESS) {
+			atomic_dec(&lac_session_failed_dereg_count);
+			return;
+		}
+		if (lacStatus != CPA_STATUS_RETRY) {
+			DPRINTK("%s() Failed to deregister session - lacStatus "
+				" = %d", __FUNCTION__, lacStatus);
+			break;
+		}
+
+		/*schedule_timout returns the time left for completion if this
+		   task is set to TASK_INTERRUPTIBLE */
+		remaining_delay_time_in_jiffies = dereg_retry_delay_in_jiffies;
+		while (0 > remaining_delay_time_in_jiffies) {
+			remaining_delay_time_in_jiffies =
+			    schedule_timeout(remaining_delay_time_in_jiffies);
+		}
+
+	}
+
+	DPRINTK("%s(): Unable to deregister session\n", __FUNCTION__);
+	DPRINTK("%s(): Number of unavailable LAC sessions = %d\n", __FUNCTION__,
+		atomic_read(&lac_session_failed_dereg_count));
+}
+
+/* Name        : icp_ocfDrvPtrAndLenToFlatBuffer 
+ *
+ * Description : This function converts a "pointer and length" buffer 
+ * structure to Fredericksburg Flat Buffer (CpaFlatBuffer) format.
+ *
+ * This function assumes that the data passed in are valid.
+ */
+inline void
+icp_ocfDrvPtrAndLenToFlatBuffer(void *pData, uint32_t len,
+				CpaFlatBuffer * pFlatBuffer)
+{
+	pFlatBuffer->pData = pData;
+	pFlatBuffer->dataLenInBytes = len;
+}
+
+/* Name        : icp_ocfDrvSingleSkBuffToFlatBuffer 
+ *
+ * Description : This function converts a single socket buffer (sk_buff)
+ * structure to a Fredericksburg Flat Buffer (CpaFlatBuffer) format.
+ *
+ * This function assumes that the data passed in are valid.
+ */
+static inline void
+icp_ocfDrvSingleSkBuffToFlatBuffer(struct sk_buff *pSkb,
+				   CpaFlatBuffer * pFlatBuffer)
+{
+	pFlatBuffer->pData = pSkb->data;
+	pFlatBuffer->dataLenInBytes = skb_headlen(pSkb);
+}
+
+/* Name        : icp_ocfDrvSkBuffToBufferList 
+ *
+ * Description : This function converts a socket buffer (sk_buff) structure to
+ * Fredericksburg Scatter/Gather (CpaBufferList) buffer format.
+ *
+ * This function assumes that the bufferlist has been allocated with the correct
+ * number of buffer arrays.
+ * 
+ */
+inline int
+icp_ocfDrvSkBuffToBufferList(struct sk_buff *pSkb, CpaBufferList * bufferList)
+{
+	CpaFlatBuffer *curFlatBuffer = NULL;
+	char *skbuffPageAddr = NULL;
+	struct sk_buff *pCurFrag = NULL;
+	struct skb_shared_info *pShInfo = NULL;
+	uint32_t page_offset = 0, i = 0;
+
+	DPRINTK("%s(): Entry Point\n", __FUNCTION__);
+
+	/*
+	 * In all cases, the first skb needs to be translated to FlatBuffer.
+	 * Perform a buffer translation for the first skbuff
+	 */
+	curFlatBuffer = bufferList->pBuffers;
+	icp_ocfDrvSingleSkBuffToFlatBuffer(pSkb, curFlatBuffer);
+
+	/* Set the userData to point to the original sk_buff */
+	bufferList->pUserData = (void *)pSkb;
+
+	/* We now know we'll have at least one element in the SGL */
+	bufferList->numBuffers = 1;
+
+	if (0 == skb_is_nonlinear(pSkb)) {
+		/* Is a linear buffer - therefore it's a single skbuff */
+		DPRINTK("%s(): Exit Point\n", __FUNCTION__);
+		return ICP_OCF_DRV_STATUS_SUCCESS;
+	}
+
+	curFlatBuffer++;
+	pShInfo = skb_shinfo(pSkb);
+	if (pShInfo->frag_list != NULL && pShInfo->nr_frags != 0) {
+		EPRINTK("%s():"
+			"Translation for a combination of frag_list "
+			"and frags[] array not supported!\n", __FUNCTION__);
+		return ICP_OCF_DRV_STATUS_FAIL;
+	} else if (pShInfo->frag_list != NULL) {
+		/*
+		 * Non linear skbuff supported through frag_list 
+		 * Perform translation for each fragment (sk_buff)
+		 * in the frag_list of the first sk_buff.
+		 */
+		for (pCurFrag = pShInfo->frag_list;
+		     pCurFrag != NULL; pCurFrag = pCurFrag->next) {
+			icp_ocfDrvSingleSkBuffToFlatBuffer(pCurFrag,
+							   curFlatBuffer);
+			curFlatBuffer++;
+			bufferList->numBuffers++;
+		}
+	} else if (pShInfo->nr_frags != 0) {
+		/*
+		 * Perform translation for each fragment in frags array
+		 * and add to the BufferList
+		 */
+		for (i = 0; i < pShInfo->nr_frags; i++) {
+			/* Get the page address and offset of this frag */
+			skbuffPageAddr = (char *)pShInfo->frags[i].page;
+			page_offset = pShInfo->frags[i].page_offset;
+
+			/* Convert a pointer and length to a flat buffer */
+			icp_ocfDrvPtrAndLenToFlatBuffer(skbuffPageAddr +
+							page_offset,
+							pShInfo->frags[i].size,
+							curFlatBuffer);
+			curFlatBuffer++;
+			bufferList->numBuffers++;
+		}
+	} else {
+		EPRINTK("%s():" "Could not recognize skbuff fragments!\n",
+			__FUNCTION__);
+		return ICP_OCF_DRV_STATUS_FAIL;
+	}
+
+	DPRINTK("%s(): Exit Point\n", __FUNCTION__);
+	return ICP_OCF_DRV_STATUS_SUCCESS;
+}
+
+/* Name        : icp_ocfDrvBufferListToSkBuff 
+ *
+ * Description : This function converts a Fredericksburg Scatter/Gather 
+ * (CpaBufferList) buffer format to socket buffer structure.
+ */
+inline int
+icp_ocfDrvBufferListToSkBuff(CpaBufferList * bufferList, struct sk_buff **skb)
+{
+	DPRINTK("%s(): Entry Point\n", __FUNCTION__);
+
+	/* Retrieve the orignal skbuff */
+	*skb = (struct sk_buff *)bufferList->pUserData;
+	if (NULL == *skb) {
+		EPRINTK("%s():"
+			"Error on converting from a BufferList. "
+			"The BufferList does not contain an sk_buff.\n",
+			__FUNCTION__);
+		return ICP_OCF_DRV_STATUS_FAIL;
+	}
+	DPRINTK("%s(): Exit Point\n", __FUNCTION__);
+	return ICP_OCF_DRV_STATUS_SUCCESS;
+}
+
+/* Name        : icp_ocfDrvPtrAndLenToBufferList
+ *
+ * Description : This function converts a "pointer and length" buffer
+ * structure to Fredericksburg Scatter/Gather Buffer (CpaBufferList) format.
+ *
+ * This function assumes that the data passed in are valid.
+ */
+inline void
+icp_ocfDrvPtrAndLenToBufferList(void *pDataIn, uint32_t length,
+				CpaBufferList * pBufferList)
+{
+	pBufferList->numBuffers = 1;
+	pBufferList->pBuffers->pData = pDataIn;
+	pBufferList->pBuffers->dataLenInBytes = length;
+}
+
+/* Name        : icp_ocfDrvBufferListToPtrAndLen
+ *
+ * Description : This function converts Fredericksburg Scatter/Gather Buffer
+ * (CpaBufferList) format to a "pointer and length" buffer structure.
+ *
+ * This function assumes that the data passed in are valid.
+ */
+inline void
+icp_ocfDrvBufferListToPtrAndLen(CpaBufferList * pBufferList,
+				void **ppDataOut, uint32_t * pLength)
+{
+	*ppDataOut = pBufferList->pBuffers->pData;
+	*pLength = pBufferList->pBuffers->dataLenInBytes;
+}
+
+/* Name        : icp_ocfDrvBufferListMemInfo
+ *
+ * Description : This function will set the number of flat buffers in 
+ * bufferlist, the size of memory to allocate for the pPrivateMetaData 
+ * member of the CpaBufferList.
+ */
+int
+icp_ocfDrvBufferListMemInfo(uint16_t numBuffers,
+			    struct icp_drvBuffListInfo *buffListInfo)
+{
+	buffListInfo->numBuffers = numBuffers;
+
+	if (CPA_STATUS_SUCCESS !=
+	    cpaCyBufferListGetMetaSize(CPA_INSTANCE_HANDLE_SINGLE,
+				       buffListInfo->numBuffers,
+				       &(buffListInfo->metaSize))) {
+		EPRINTK("%s() Failed to get buffer list meta size.\n",
+			__FUNCTION__);
+		return ICP_OCF_DRV_STATUS_FAIL;
+	}
+
+	return ICP_OCF_DRV_STATUS_SUCCESS;
+}
+
+/* Name        : icp_ocfDrvGetSkBuffFrags
+ *
+ * Description : This function will determine the number of 
+ * fragments in a socket buffer(sk_buff).
+ */
+inline uint16_t icp_ocfDrvGetSkBuffFrags(struct sk_buff * pSkb)
+{
+	uint16_t numFrags = 0;
+	struct sk_buff *pCurFrag = NULL;
+	struct skb_shared_info *pShInfo = NULL;
+
+	if (NULL == pSkb)
+		return 0;
+
+	numFrags = 1;
+	if (0 == skb_is_nonlinear(pSkb)) {
+		/* Linear buffer - it's a single skbuff */
+		return numFrags;
+	}
+
+	pShInfo = skb_shinfo(pSkb);
+	if (NULL != pShInfo->frag_list && 0 != pShInfo->nr_frags) {
+		EPRINTK("%s(): Combination of frag_list "
+			"and frags[] array not supported!\n", __FUNCTION__);
+		return 0;
+	} else if (0 != pShInfo->nr_frags) {
+		numFrags += pShInfo->nr_frags;
+		return numFrags;
+	} else if (NULL != pShInfo->frag_list) {
+		for (pCurFrag = pShInfo->frag_list;
+		     pCurFrag != NULL; pCurFrag = pCurFrag->next) {
+			numFrags++;
+		}
+		return numFrags;
+	} else {
+		return 0;
+	}
+}
+
+/* Name        : icp_ocfDrvFreeFlatBuffer
+ *
+ * Description : This function will deallocate flat buffer.
+ */
+inline void icp_ocfDrvFreeFlatBuffer(CpaFlatBuffer * pFlatBuffer)
+{
+	if (pFlatBuffer != NULL) {
+		memset(pFlatBuffer, 0, sizeof(CpaFlatBuffer));
+		kmem_cache_free(drvFlatBuffer_zone, pFlatBuffer);
+	}
+}
+
+/* Name        : icp_ocfDrvAllocMetaData
+ *
+ * Description : This function will allocate memory for the
+ * pPrivateMetaData member of CpaBufferList.
+ */
+inline int
+icp_ocfDrvAllocMetaData(CpaBufferList * pBufferList,
+        const struct icp_drvOpData *pOpData)
+{
+	Cpa32U metaSize = 0;
+
+	if (pBufferList->numBuffers <= ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS){
+	    void *pOpDataStartAddr = (void *)pOpData;
+
+	    if (0 == defBuffListInfo.metaSize) {
+			pBufferList->pPrivateMetaData = NULL;
+			return ICP_OCF_DRV_STATUS_SUCCESS;
+		}
+		/*
+		 * The meta data allocation has been included as part of the 
+		 * op data.  It has been pre-allocated in memory just after the
+		 * icp_drvOpData structure.
+		 */
+		pBufferList->pPrivateMetaData = pOpDataStartAddr +
+		        sizeof(struct icp_drvOpData);
+	} else {
+		if (CPA_STATUS_SUCCESS !=
+		    cpaCyBufferListGetMetaSize(CPA_INSTANCE_HANDLE_SINGLE,
+					       pBufferList->numBuffers,
+					       &metaSize)) {
+			EPRINTK("%s() Failed to get buffer list meta size.\n",
+				__FUNCTION__);
+			return ICP_OCF_DRV_STATUS_FAIL;
+		}
+
+		if (0 == metaSize) {
+			pBufferList->pPrivateMetaData = NULL;
+			return ICP_OCF_DRV_STATUS_SUCCESS;
+		}
+
+		pBufferList->pPrivateMetaData = kmalloc(metaSize, GFP_ATOMIC);
+	}
+	if (NULL == pBufferList->pPrivateMetaData) {
+		EPRINTK("%s() Failed to allocate pPrivateMetaData.\n",
+			__FUNCTION__);
+		return ICP_OCF_DRV_STATUS_FAIL;
+	}
+
+	return ICP_OCF_DRV_STATUS_SUCCESS;
+}
+
+/* Name        : icp_ocfDrvFreeMetaData
+ *
+ * Description : This function will deallocate pPrivateMetaData memory.
+ */
+inline void icp_ocfDrvFreeMetaData(CpaBufferList * pBufferList)
+{
+	if (NULL == pBufferList->pPrivateMetaData) {
+		return;
+	}
+
+	/*
+	 * Only free the meta data if the BufferList has more than 
+	 * ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS number of buffers.
+	 * Otherwise, the meta data shall be freed when the icp_drvOpData is
+	 * freed.
+	 */
+	if (ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS < pBufferList->numBuffers){
+		kfree(pBufferList->pPrivateMetaData);
+	}
+}
+
+module_init(icp_ocfDrvInit);
+module_exit(icp_ocfDrvExit);
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("Intel");
+MODULE_DESCRIPTION("OCF Driver for Intel Quick Assist crypto acceleration");
diff -Nur linux-2.6.29.1.orig/crypto/ocf/ep80579/icp_ocf.h linux-2.6.29.1/crypto/ocf/ep80579/icp_ocf.h
--- linux-2.6.29.1.orig/crypto/ocf/ep80579/icp_ocf.h	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/ep80579/icp_ocf.h	2009-04-20 20:01:21.436552036 +0200
@@ -0,0 +1,363 @@
+/***************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or 
+ *   redistributing this file, you may do so under either license.
+ * 
+ *   GPL LICENSE SUMMARY
+ * 
+ *   Copyright(c) 2007,2008 Intel Corporation. All rights reserved.
+ * 
+ *   This program is free software; you can redistribute it and/or modify 
+ *   it under the terms of version 2 of the GNU General Public License as
+ *   published by the Free Software Foundation.
+ * 
+ *   This program is distributed in the hope that it will be useful, but 
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of 
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU 
+ *   General Public License for more details.
+ * 
+ *   You should have received a copy of the GNU General Public License 
+ *   along with this program; if not, write to the Free Software 
+ *   Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *   The full GNU General Public License is included in this distribution 
+ *   in the file called LICENSE.GPL.
+ * 
+ *   Contact Information:
+ *   Intel Corporation
+ * 
+ *   BSD LICENSE 
+ * 
+ *   Copyright(c) 2007,2008 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ * 
+ *   Redistribution and use in source and binary forms, with or without 
+ *   modification, are permitted provided that the following conditions 
+ *   are met:
+ * 
+ *     * Redistributions of source code must retain the above copyright 
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright 
+ *       notice, this list of conditions and the following disclaimer in 
+ *       the documentation and/or other materials provided with the 
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its 
+ *       contributors may be used to endorse or promote products derived 
+ *       from this software without specific prior written permission.
+ * 
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * 
+ *  version: Security.L.1.0.130
+ *
+ ***************************************************************************/
+
+/*
+ * OCF drv driver header file for the Intel ICP processor.
+ */
+
+#ifndef ICP_OCF_H
+#define ICP_OCF_H
+
+#include <linux/crypto.h>
+#include <linux/delay.h>
+#include <linux/skbuff.h>
+
+#include "cryptodev.h"
+#include "uio.h"
+
+#include "cpa.h"
+#include "cpa_cy_im.h"
+#include "cpa_cy_sym.h"
+#include "cpa_cy_rand.h"
+#include "cpa_cy_dh.h"
+#include "cpa_cy_rsa.h"
+#include "cpa_cy_ln.h"
+#include "cpa_cy_common.h"
+#include "cpa_cy_dsa.h"
+
+#define NUM_BITS_IN_BYTE (8)
+#define NUM_BITS_IN_BYTE_MINUS_ONE (NUM_BITS_IN_BYTE -1)
+#define INVALID_DRIVER_ID (-1)
+#define RETURN_RAND_NUM_GEN_FAILED (-1)
+
+/*This is define means only one operation can be chained to another
+(resulting in one chain of two operations)*/
+#define MAX_NUM_OF_CHAINED_OPS (1)
+/*This is the max block cipher initialisation vector*/
+#define MAX_IV_LEN_IN_BYTES (20)
+/*This is used to check whether the OCF to this driver session limit has
+  been disabled*/
+#define NO_OCF_TO_DRV_MAX_SESSIONS		(0)
+
+/*OCF values mapped here*/
+#define ICP_SHA1_DIGEST_SIZE_IN_BYTES 		(SHA1_HASH_LEN)
+#define ICP_SHA256_DIGEST_SIZE_IN_BYTES 	(SHA2_256_HASH_LEN)
+#define ICP_SHA384_DIGEST_SIZE_IN_BYTES 	(SHA2_384_HASH_LEN)
+#define ICP_SHA512_DIGEST_SIZE_IN_BYTES 	(SHA2_512_HASH_LEN)
+#define ICP_MD5_DIGEST_SIZE_IN_BYTES 		(MD5_HASH_LEN)
+#define ARC4_COUNTER_LEN 			(ARC4_BLOCK_LEN)
+
+#define OCF_REGISTRATION_STATUS_SUCCESS 	(0)
+#define OCF_ZERO_FUNCTIONALITY_REGISTERED 	(0)
+#define ICP_OCF_DRV_NO_CRYPTO_PROCESS_ERROR 	(0)
+#define ICP_OCF_DRV_STATUS_SUCCESS 		(0)
+#define ICP_OCF_DRV_STATUS_FAIL 		(1)
+
+/*Turn on/off debug options*/
+#define ICP_OCF_PRINT_DEBUG_MESSAGES		(0)
+#define ICP_OCF_PRINT_KERN_ALERT		(1)
+#define ICP_OCF_PRINT_KERN_ERRS			(1)
+
+/*DSA Prime Q size in bytes (as defined in the standard) */
+#define DSA_RS_SIGN_PRIMEQ_SIZE_IN_BYTES	(20)
+
+/*MACRO DEFINITIONS*/
+
+#define BITS_TO_BYTES(bytes, bits) 					\
+	bytes = (bits + NUM_BITS_IN_BYTE_MINUS_ONE) / NUM_BITS_IN_BYTE
+
+#define ICP_CACHE_CREATE(cache_ID, cache_name) 				\
+	kmem_cache_create(cache_ID, sizeof(cache_name),0, 		\
+		SLAB_HWCACHE_ALIGN, NULL, NULL);
+
+#define ICP_CACHE_NULL_CHECK(slab_zone)					\
+{									\
+	if(NULL == slab_zone){ 						\
+		icp_ocfDrvFreeCaches(); 				\
+		EPRINTK("%s() line %d: Not enough memory!\n", 		\
+			__FUNCTION__, __LINE__); 			\
+		return ENOMEM; 						\
+	}								\
+}
+
+#define ICP_CACHE_DESTROY(slab_zone) 	                                \
+{                                                                       \
+        if(NULL != slab_zone){						\
+                kmem_cache_destroy(slab_zone);				\
+                slab_zone = NULL;					\
+        }								\
+}
+
+#define ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(alg)			\
+{									\
+	if(OCF_REGISTRATION_STATUS_SUCCESS ==				\
+		crypto_register(icp_ocfDrvDriverId,			\
+				    alg,				\
+				    0,					\
+				    0)) {				\
+		ocfStatus++;						\
+	}								\
+}
+
+#define ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(alg)			\
+{									\
+	if(OCF_REGISTRATION_STATUS_SUCCESS ==				\
+		crypto_kregister(icp_ocfDrvDriverId,			\
+				      alg,				\
+				      0)){				\
+		ocfStatus++;						\
+	}								\
+}
+
+#if ICP_OCF_PRINT_DEBUG_MESSAGES == 1
+#define DPRINTK(args...)      \
+{			      \
+                printk(args); \
+}
+
+#else				//ICP_OCF_PRINT_DEBUG_MESSAGES == 1
+
+#define DPRINTK(args...)
+
+#endif				//ICP_OCF_PRINT_DEBUG_MESSAGES == 1
+
+#if ICP_OCF_PRINT_KERN_ALERT == 1
+#define APRINTK(args...)      						\
+{			      						\
+       printk(KERN_ALERT args);						\
+}
+
+#else				//ICP_OCF_PRINT_KERN_ALERT == 1
+
+#define APRINTK(args...)
+
+#endif				//ICP_OCF_PRINT_KERN_ALERT == 1
+
+#if ICP_OCF_PRINT_KERN_ERRS == 1
+#define EPRINTK(args...)      \
+{			      \
+       printk(KERN_ERR args); \
+}
+
+#else				//ICP_OCF_PRINT_KERN_ERRS == 1
+
+#define EPRINTK(args...)
+
+#endif				//ICP_OCF_PRINT_KERN_ERRS == 1
+
+#define IPRINTK(args...)      \
+{			      \
+      printk(KERN_INFO args); \
+}
+
+/*END OF MACRO DEFINITIONS*/
+
+typedef enum {
+	ICP_OCF_DRV_ALG_CIPHER = 0,
+	ICP_OCF_DRV_ALG_HASH
+} icp_ocf_drv_alg_type_t;
+
+/* These are all defined in icp_common.c */
+extern atomic_t lac_session_failed_dereg_count;
+extern atomic_t icp_ocfDrvIsExiting;
+extern atomic_t num_ocf_to_drv_registered_sessions;
+
+/*These are use inputs used in icp_sym.c and icp_common.c
+  They are instantiated in icp_common.c*/
+extern int max_sessions;
+
+extern int32_t icp_ocfDrvDriverId;
+extern struct list_head icp_ocfDrvGlobalSymListHead;
+extern struct list_head icp_ocfDrvGlobalSymListHead_FreeMemList;
+extern struct workqueue_struct *icp_ocfDrvFreeLacSessionWorkQ;
+extern spinlock_t icp_ocfDrvSymSessInfoListSpinlock;
+extern rwlock_t icp_kmem_cache_destroy_alloc_lock;
+
+/*Slab zones for symettric functionality, instantiated in icp_common.c*/
+extern struct kmem_cache *drvSessionData_zone;
+extern struct kmem_cache *drvOpData_zone;
+
+/*Slabs zones for asymettric functionality, instantiated in icp_common.c*/
+extern struct kmem_cache *drvDH_zone;
+extern struct kmem_cache *drvLnModExp_zone;
+extern struct kmem_cache *drvRSADecrypt_zone;
+extern struct kmem_cache *drvRSAPrivateKey_zone;
+extern struct kmem_cache *drvDSARSSign_zone;
+extern struct kmem_cache *drvDSARSSignKValue_zone;
+extern struct kmem_cache *drvDSAVerify_zone;
+
+/*Slab zones for flatbuffers and bufferlist*/
+extern struct kmem_cache *drvFlatBuffer_zone;
+
+#define ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS     (16)
+
+struct icp_drvBuffListInfo {
+	Cpa16U numBuffers;
+	Cpa32U metaSize;
+	Cpa32U metaOffset;
+	Cpa32U buffListSize;
+};
+extern struct icp_drvBuffListInfo defBuffListInfo;
+
+/*
+* This struct is used to keep a reference to the relevant node in the list
+* of sessionData structs, to the buffer type required by OCF and to the OCF
+* provided crp struct that needs to be returned. All this info is needed in
+* the callback function.
+*
+* IV can sometimes be stored in non-contiguous memory (e.g. skbuff
+* linked/frag list, therefore a contiguous memory space for the IV data must be
+* created and passed to LAC
+*
+*/
+struct icp_drvOpData {
+	CpaCySymOpData lacOpData;
+	uint32_t digestSizeInBytes;
+	struct cryptop *crp;
+	uint8_t bufferType;
+	uint8_t ivData[MAX_IV_LEN_IN_BYTES];
+	uint16_t numBufferListArray;
+	CpaBufferList srcBuffer;
+	CpaFlatBuffer bufferListArray[ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS];
+	CpaBoolean verifyResult;
+};
+/*Values used to derisk chances of performs being called against
+deregistered sessions (for which the slab page has been reclaimed)
+This is not a fix - since page frames are reclaimed from a slab, one cannot
+rely on that memory not being re-used by another app.*/
+typedef enum {
+	ICP_SESSION_INITIALISED = 0x5C5C5C,
+	ICP_SESSION_RUNNING = 0x005C00,
+	ICP_SESSION_DEREGISTERED = 0xC5C5C5
+} usage_derisk;
+
+/*
+This is the OCF<->OCF_DRV session object:
+
+1.The first member is a listNode. These session objects are added to a linked
+  list in order to make it easier to remove them all at session exit time.
+2.The second member is used to give the session object state and derisk the
+  possibility of OCF batch calls executing against a deregistered session (as
+  described above).
+3.The third member is a LAC<->OCF_DRV session handle (initialised with the first
+  perform request for that session).
+4.The fourth is the LAC session context. All the parameters for this structure
+  are only known when the first perform request for this session occurs. That is
+  why the OCF Tolapai Driver only registers a new LAC session at perform time
+*/
+struct icp_drvSessionData {
+	struct list_head listNode;
+	usage_derisk inUse;
+	CpaCySymSessionCtx sessHandle;
+	CpaCySymSessionSetupData lacSessCtx;
+};
+
+/* This struct is required for deferred session
+ deregistration as a work queue function can
+ only have one argument*/
+struct icp_ocfDrvFreeLacSession {
+	CpaCySymSessionCtx sessionToDeregister;
+	struct work_struct work;
+};
+
+int icp_ocfDrvNewSession(device_t dev, uint32_t * sild, struct cryptoini *cri);
+
+int icp_ocfDrvFreeLACSession(device_t dev, uint64_t sid);
+
+int icp_ocfDrvSymProcess(device_t dev, struct cryptop *crp, int hint);
+
+int icp_ocfDrvPkeProcess(device_t dev, struct cryptkop *krp, int hint);
+
+int icp_ocfDrvReadRandom(void *arg, uint32_t * buf, int maxwords);
+
+int icp_ocfDrvDeregRetry(CpaCySymSessionCtx sessionToDeregister);
+
+int icp_ocfDrvSkBuffToBufferList(struct sk_buff *skb,
+				 CpaBufferList * bufferList);
+
+int icp_ocfDrvBufferListToSkBuff(CpaBufferList * bufferList,
+				 struct sk_buff **skb);
+
+void icp_ocfDrvPtrAndLenToFlatBuffer(void *pData, uint32_t len,
+				     CpaFlatBuffer * pFlatBuffer);
+
+void icp_ocfDrvPtrAndLenToBufferList(void *pDataIn, uint32_t length,
+				     CpaBufferList * pBufferList);
+
+void icp_ocfDrvBufferListToPtrAndLen(CpaBufferList * pBufferList,
+				     void **ppDataOut, uint32_t * pLength);
+
+int icp_ocfDrvBufferListMemInfo(uint16_t numBuffers,
+				struct icp_drvBuffListInfo *buffListInfo);
+
+uint16_t icp_ocfDrvGetSkBuffFrags(struct sk_buff *pSkb);
+
+void icp_ocfDrvFreeFlatBuffer(CpaFlatBuffer * pFlatBuffer);
+
+int icp_ocfDrvAllocMetaData(CpaBufferList * pBufferList, 
+                const struct icp_drvOpData *pOpData);
+
+void icp_ocfDrvFreeMetaData(CpaBufferList * pBufferList);
+
+#endif
+/* ICP_OCF_H */
diff -Nur linux-2.6.29.1.orig/crypto/ocf/ep80579/icp_sym.c linux-2.6.29.1/crypto/ocf/ep80579/icp_sym.c
--- linux-2.6.29.1.orig/crypto/ocf/ep80579/icp_sym.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/ep80579/icp_sym.c	2009-04-20 20:01:21.464554764 +0200
@@ -0,0 +1,1382 @@
+/***************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or 
+ *   redistributing this file, you may do so under either license.
+ * 
+ *   GPL LICENSE SUMMARY
+ * 
+ *   Copyright(c) 2007,2008 Intel Corporation. All rights reserved.
+ * 
+ *   This program is free software; you can redistribute it and/or modify 
+ *   it under the terms of version 2 of the GNU General Public License as
+ *   published by the Free Software Foundation.
+ * 
+ *   This program is distributed in the hope that it will be useful, but 
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of 
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU 
+ *   General Public License for more details.
+ * 
+ *   You should have received a copy of the GNU General Public License 
+ *   along with this program; if not, write to the Free Software 
+ *   Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *   The full GNU General Public License is included in this distribution 
+ *   in the file called LICENSE.GPL.
+ * 
+ *   Contact Information:
+ *   Intel Corporation
+ * 
+ *   BSD LICENSE 
+ * 
+ *   Copyright(c) 2007,2008 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ * 
+ *   Redistribution and use in source and binary forms, with or without 
+ *   modification, are permitted provided that the following conditions 
+ *   are met:
+ * 
+ *     * Redistributions of source code must retain the above copyright 
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright 
+ *       notice, this list of conditions and the following disclaimer in 
+ *       the documentation and/or other materials provided with the 
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its 
+ *       contributors may be used to endorse or promote products derived 
+ *       from this software without specific prior written permission.
+ * 
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * 
+ *  version: Security.L.1.0.130
+ *
+ ***************************************************************************/
+/*
+ * An OCF module that uses the API for Intel® QuickAssist Technology to do the
+ * cryptography.
+ *
+ * This driver requires the ICP Access Library that is available from Intel in
+ * order to operate.
+ */
+
+#include "icp_ocf.h"
+
+/*This is the call back function for all symmetric cryptographic processes.
+  Its main functionality is to free driver crypto operation structure and to 
+  call back to OCF*/
+static void
+icp_ocfDrvSymCallBack(void *callbackTag,
+		      CpaStatus status,
+		      const CpaCySymOp operationType,
+		      void *pOpData,
+		      CpaBufferList * pDstBuffer, CpaBoolean verifyResult);
+
+/*This function is used to extract crypto processing information from the OCF
+  inputs, so as that it may be passed onto LAC*/
+static int
+icp_ocfDrvProcessDataSetup(struct icp_drvOpData *drvOpData,
+			   struct cryptodesc *crp_desc);
+
+/*This function checks whether the crp_desc argument pertains to a digest or a
+  cipher operation*/
+static int icp_ocfDrvAlgCheck(struct cryptodesc *crp_desc);
+
+/*This function copies all the passed in session context information and stores
+  it in a LAC context structure*/
+static int
+icp_ocfDrvAlgorithmSetup(struct cryptoini *cri,
+			 CpaCySymSessionSetupData * lacSessCtx);
+
+/*This top level function is used to find a pointer to where a digest is 
+  stored/needs to be inserted. */
+static uint8_t *icp_ocfDrvDigestPointerFind(struct icp_drvOpData *drvOpData,
+					    struct cryptodesc *crp_desc);
+
+/*This function is called when a digest pointer has to be found within a
+  SKBUFF.*/
+static inline uint8_t *icp_ocfDrvSkbuffDigestPointerFind(struct icp_drvOpData
+							 *drvOpData,
+							 int offsetInBytes,
+							 uint32_t
+							 digestSizeInBytes);
+
+/*The following two functions are called if the SKBUFF digest pointer is not 
+  positioned in the linear portion of the buffer (i.e. it is in a linked SKBUFF
+   or page fragment).*/
+/*This function takes care of the page fragment case.*/
+static inline uint8_t *icp_ocfDrvDigestSkbNRFragsCheck(struct sk_buff *skb,
+						       struct skb_shared_info
+						       *skb_shared,
+						       int offsetInBytes,
+						       uint32_t
+						       digestSizeInBytes);
+
+/*This function takes care of the linked list case.*/
+static inline uint8_t *icp_ocfDrvDigestSkbFragListCheck(struct sk_buff *skb,
+							struct skb_shared_info
+							*skb_shared,
+							int offsetInBytes,
+							uint32_t
+							digestSizeInBytes);
+
+/*This function is used to free an OCF->OCF_DRV session object*/
+static void icp_ocfDrvFreeOCFSession(struct icp_drvSessionData *sessionData);
+
+/*max IOV buffs supported in a UIO structure*/
+#define NUM_IOV_SUPPORTED		(1)
+
+/* Name        : icp_ocfDrvSymCallBack
+ *
+ * Description : When this function returns it signifies that the LAC
+ * component has completed the relevant symmetric operation. 
+ *
+ * Notes : The callbackTag is a pointer to an icp_drvOpData. This memory
+ * object was passed to LAC for the cryptographic processing and contains all
+ * the relevant information for cleaning up buffer handles etc. so that the
+ * OCF Tolapai Driver portion of this crypto operation can be fully completed.
+ */
+static void
+icp_ocfDrvSymCallBack(void *callbackTag,
+		      CpaStatus status,
+		      const CpaCySymOp operationType,
+		      void *pOpData,
+		      CpaBufferList * pDstBuffer, CpaBoolean verifyResult)
+{
+	struct cryptop *crp = NULL;
+	struct icp_drvOpData *temp_drvOpData =
+	    (struct icp_drvOpData *)callbackTag;
+	uint64_t *tempBasePtr = NULL;
+	uint32_t tempLen = 0;
+
+	if (NULL == temp_drvOpData) {
+		DPRINTK("%s(): The callback from the LAC component"
+			" has failed due to Null userOpaque data"
+			"(status == %d).\n", __FUNCTION__, status);
+		DPRINTK("%s(): Unable to call OCF back! \n", __FUNCTION__);
+		return;
+	}
+
+	crp = temp_drvOpData->crp;
+	crp->crp_etype = ICP_OCF_DRV_NO_CRYPTO_PROCESS_ERROR;
+
+	if (NULL == pOpData) {
+		DPRINTK("%s(): The callback from the LAC component"
+			" has failed due to Null Symmetric Op data"
+			"(status == %d).\n", __FUNCTION__, status);
+		crp->crp_etype = ECANCELED;
+		crypto_done(crp);
+		return;
+	}
+
+	if (NULL == pDstBuffer) {
+		DPRINTK("%s(): The callback from the LAC component"
+			" has failed due to Null Dst Bufferlist data"
+			"(status == %d).\n", __FUNCTION__, status);
+		crp->crp_etype = ECANCELED;
+		crypto_done(crp);
+		return;
+	}
+
+	if (CPA_STATUS_SUCCESS == status) {
+
+		if (temp_drvOpData->bufferType == CRYPTO_F_SKBUF) {
+			if (ICP_OCF_DRV_STATUS_SUCCESS !=
+			    icp_ocfDrvBufferListToSkBuff(pDstBuffer,
+							 (struct sk_buff **)
+							 &(crp->crp_buf))) {
+				EPRINTK("%s(): BufferList to SkBuff "
+					"conversion error.\n", __FUNCTION__);
+				crp->crp_etype = EPERM;
+			}
+		} else {
+			icp_ocfDrvBufferListToPtrAndLen(pDstBuffer,
+							(void **)&tempBasePtr,
+							&tempLen);
+			crp->crp_olen = (int)tempLen;
+		}
+
+	} else {
+		DPRINTK("%s(): The callback from the LAC component has failed"
+			"(status == %d).\n", __FUNCTION__, status);
+
+		crp->crp_etype = ECANCELED;
+	}
+
+	if (temp_drvOpData->numBufferListArray >
+	    ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS) {
+		kfree(pDstBuffer->pBuffers);
+	}
+	icp_ocfDrvFreeMetaData(pDstBuffer);
+	kmem_cache_free(drvOpData_zone, temp_drvOpData);
+
+	/* Invoke the OCF callback function */
+	crypto_done(crp);
+
+	return;
+}
+
+/* Name        : icp_ocfDrvNewSession 
+ *
+ * Description : This function will create a new Driver<->OCF session
+ *
+ * Notes : LAC session registration happens during the first perform call.
+ * That is the first time we know all information about a given session.
+ */
+int icp_ocfDrvNewSession(device_t dev, uint32_t * sid, struct cryptoini *cri)
+{
+	struct icp_drvSessionData *sessionData = NULL;
+	uint32_t delete_session = 0;
+
+	/* The SID passed in should be our driver ID. We can return the     */
+	/* local ID (LID) which is a unique identifier which we can use     */
+	/* to differentiate between the encrypt/decrypt LAC session handles */
+	if (NULL == sid) {
+		EPRINTK("%s(): Invalid input parameters - NULL sid.\n",
+			__FUNCTION__);
+		return EINVAL;
+	}
+
+	if (NULL == cri) {
+		EPRINTK("%s(): Invalid input parameters - NULL cryptoini.\n",
+			__FUNCTION__);
+		return EINVAL;
+	}
+
+	if (icp_ocfDrvDriverId != *sid) {
+		EPRINTK("%s(): Invalid input parameters - bad driver ID\n",
+			__FUNCTION__);
+		EPRINTK("\t sid = 0x08%p \n \t cri = 0x08%p \n", sid, cri);
+		return EINVAL;
+	}
+
+	sessionData = kmem_cache_zalloc(drvSessionData_zone, GFP_ATOMIC);
+	if (NULL == sessionData) {
+		DPRINTK("%s():No memory for Session Data\n", __FUNCTION__);
+		return ENOMEM;
+	}
+
+	/*ENTER CRITICAL SECTION */
+	spin_lock_bh(&icp_ocfDrvSymSessInfoListSpinlock);
+	/*put this check in the spinlock so no new sessions can be added to the
+	   linked list when we are exiting */
+	if (CPA_TRUE == atomic_read(&icp_ocfDrvIsExiting)) {
+		delete_session++;
+
+	} else if (NO_OCF_TO_DRV_MAX_SESSIONS != max_sessions) {
+		if (atomic_read(&num_ocf_to_drv_registered_sessions) >=
+		    (max_sessions -
+		     atomic_read(&lac_session_failed_dereg_count))) {
+			delete_session++;
+		} else {
+			atomic_inc(&num_ocf_to_drv_registered_sessions);
+			/* Add to session data linked list */
+			list_add(&(sessionData->listNode),
+				 &icp_ocfDrvGlobalSymListHead);
+		}
+
+	} else if (NO_OCF_TO_DRV_MAX_SESSIONS == max_sessions) {
+		list_add(&(sessionData->listNode),
+			 &icp_ocfDrvGlobalSymListHead);
+	}
+
+	sessionData->inUse = ICP_SESSION_INITIALISED;
+
+	/*EXIT CRITICAL SECTION */
+	spin_unlock_bh(&icp_ocfDrvSymSessInfoListSpinlock);
+
+	if (delete_session) {
+		DPRINTK("%s():No Session handles available\n", __FUNCTION__);
+		kmem_cache_free(drvSessionData_zone, sessionData);
+		return EPERM;
+	}
+
+	if (ICP_OCF_DRV_STATUS_SUCCESS !=
+	    icp_ocfDrvAlgorithmSetup(cri, &(sessionData->lacSessCtx))) {
+		DPRINTK("%s():algorithm not supported\n", __FUNCTION__);
+		icp_ocfDrvFreeOCFSession(sessionData);
+		return EINVAL;
+	}
+
+	if (cri->cri_next) {
+		if (cri->cri_next->cri_next != NULL) {
+			DPRINTK("%s():only two chained algorithms supported\n",
+				__FUNCTION__);
+			icp_ocfDrvFreeOCFSession(sessionData);
+			return EPERM;
+		}
+
+		if (ICP_OCF_DRV_STATUS_SUCCESS !=
+		    icp_ocfDrvAlgorithmSetup(cri->cri_next,
+					     &(sessionData->lacSessCtx))) {
+			DPRINTK("%s():second algorithm not supported\n",
+				__FUNCTION__);
+			icp_ocfDrvFreeOCFSession(sessionData);
+			return EINVAL;
+		}
+
+		sessionData->lacSessCtx.symOperation =
+		    CPA_CY_SYM_OP_ALGORITHM_CHAINING;
+	}
+
+	*sid = (uint32_t) sessionData;
+
+	return ICP_OCF_DRV_STATUS_SUCCESS;
+}
+
+/* Name        : icp_ocfDrvAlgorithmSetup
+ *
+ * Description : This function builds the session context data from the
+ * information supplied through OCF. Algorithm chain order and whether the
+ * session is Encrypt/Decrypt can only be found out at perform time however, so
+ * the session is registered with LAC at that time.
+ */
+static int
+icp_ocfDrvAlgorithmSetup(struct cryptoini *cri,
+			 CpaCySymSessionSetupData * lacSessCtx)
+{
+
+	lacSessCtx->sessionPriority = CPA_CY_PRIORITY_NORMAL;
+
+	switch (cri->cri_alg) {
+
+	case CRYPTO_NULL_CBC:
+		DPRINTK("%s(): NULL CBC\n", __FUNCTION__);
+		lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER;
+		lacSessCtx->cipherSetupData.cipherAlgorithm =
+		    CPA_CY_SYM_CIPHER_NULL;
+		lacSessCtx->cipherSetupData.cipherKeyLenInBytes =
+		    cri->cri_klen / NUM_BITS_IN_BYTE;
+		lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key;
+		break;
+
+	case CRYPTO_DES_CBC:
+		DPRINTK("%s(): DES CBC\n", __FUNCTION__);
+		lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER;
+		lacSessCtx->cipherSetupData.cipherAlgorithm =
+		    CPA_CY_SYM_CIPHER_DES_CBC;
+		lacSessCtx->cipherSetupData.cipherKeyLenInBytes =
+		    cri->cri_klen / NUM_BITS_IN_BYTE;
+		lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key;
+		break;
+
+	case CRYPTO_3DES_CBC:
+		DPRINTK("%s(): 3DES CBC\n", __FUNCTION__);
+		lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER;
+		lacSessCtx->cipherSetupData.cipherAlgorithm =
+		    CPA_CY_SYM_CIPHER_3DES_CBC;
+		lacSessCtx->cipherSetupData.cipherKeyLenInBytes =
+		    cri->cri_klen / NUM_BITS_IN_BYTE;
+		lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key;
+		break;
+
+	case CRYPTO_AES_CBC:
+		DPRINTK("%s(): AES CBC\n", __FUNCTION__);
+		lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER;
+		lacSessCtx->cipherSetupData.cipherAlgorithm =
+		    CPA_CY_SYM_CIPHER_AES_CBC;
+		lacSessCtx->cipherSetupData.cipherKeyLenInBytes =
+		    cri->cri_klen / NUM_BITS_IN_BYTE;
+		lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key;
+		break;
+
+	case CRYPTO_ARC4:
+		DPRINTK("%s(): ARC4\n", __FUNCTION__);
+		lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER;
+		lacSessCtx->cipherSetupData.cipherAlgorithm =
+		    CPA_CY_SYM_CIPHER_ARC4;
+		lacSessCtx->cipherSetupData.cipherKeyLenInBytes =
+		    cri->cri_klen / NUM_BITS_IN_BYTE;
+		lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key;
+		break;
+
+	case CRYPTO_SHA1:
+		DPRINTK("%s(): SHA1\n", __FUNCTION__);
+		lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
+		lacSessCtx->hashSetupData.hashAlgorithm = CPA_CY_SYM_HASH_SHA1;
+		lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN;
+		lacSessCtx->hashSetupData.digestResultLenInBytes =
+		    (cri->cri_mlen ?
+		     cri->cri_mlen : ICP_SHA1_DIGEST_SIZE_IN_BYTES);
+
+		break;
+
+	case CRYPTO_SHA1_HMAC:
+		DPRINTK("%s(): SHA1_HMAC\n", __FUNCTION__);
+		lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
+		lacSessCtx->hashSetupData.hashAlgorithm = CPA_CY_SYM_HASH_SHA1;
+		lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH;
+		lacSessCtx->hashSetupData.digestResultLenInBytes =
+		    (cri->cri_mlen ?
+		     cri->cri_mlen : ICP_SHA1_DIGEST_SIZE_IN_BYTES);
+		lacSessCtx->hashSetupData.authModeSetupData.authKey =
+		    cri->cri_key;
+		lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes =
+		    cri->cri_klen / NUM_BITS_IN_BYTE;
+		lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0;
+
+		break;
+
+	case CRYPTO_SHA2_256:
+		DPRINTK("%s(): SHA256\n", __FUNCTION__);
+		lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
+		lacSessCtx->hashSetupData.hashAlgorithm =
+		    CPA_CY_SYM_HASH_SHA256;
+		lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN;
+		lacSessCtx->hashSetupData.digestResultLenInBytes =
+		    (cri->cri_mlen ?
+		     cri->cri_mlen : ICP_SHA256_DIGEST_SIZE_IN_BYTES);
+
+		break;
+
+	case CRYPTO_SHA2_256_HMAC:
+		DPRINTK("%s(): SHA256_HMAC\n", __FUNCTION__);
+		lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
+		lacSessCtx->hashSetupData.hashAlgorithm =
+		    CPA_CY_SYM_HASH_SHA256;
+		lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH;
+		lacSessCtx->hashSetupData.digestResultLenInBytes =
+		    (cri->cri_mlen ?
+		     cri->cri_mlen : ICP_SHA256_DIGEST_SIZE_IN_BYTES);
+		lacSessCtx->hashSetupData.authModeSetupData.authKey =
+		    cri->cri_key;
+		lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes =
+		    cri->cri_klen / NUM_BITS_IN_BYTE;
+		lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0;
+
+		break;
+
+	case CRYPTO_SHA2_384:
+		DPRINTK("%s(): SHA384\n", __FUNCTION__);
+		lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
+		lacSessCtx->hashSetupData.hashAlgorithm =
+		    CPA_CY_SYM_HASH_SHA384;
+		lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN;
+		lacSessCtx->hashSetupData.digestResultLenInBytes =
+		    (cri->cri_mlen ?
+		     cri->cri_mlen : ICP_SHA384_DIGEST_SIZE_IN_BYTES);
+
+		break;
+
+	case CRYPTO_SHA2_384_HMAC:
+		DPRINTK("%s(): SHA384_HMAC\n", __FUNCTION__);
+		lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
+		lacSessCtx->hashSetupData.hashAlgorithm =
+		    CPA_CY_SYM_HASH_SHA384;
+		lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH;
+		lacSessCtx->hashSetupData.digestResultLenInBytes =
+		    (cri->cri_mlen ?
+		     cri->cri_mlen : ICP_SHA384_DIGEST_SIZE_IN_BYTES);
+		lacSessCtx->hashSetupData.authModeSetupData.authKey =
+		    cri->cri_key;
+		lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes =
+		    cri->cri_klen / NUM_BITS_IN_BYTE;
+		lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0;
+
+		break;
+
+	case CRYPTO_SHA2_512:
+		DPRINTK("%s(): SHA512\n", __FUNCTION__);
+		lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
+		lacSessCtx->hashSetupData.hashAlgorithm =
+		    CPA_CY_SYM_HASH_SHA512;
+		lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN;
+		lacSessCtx->hashSetupData.digestResultLenInBytes =
+		    (cri->cri_mlen ?
+		     cri->cri_mlen : ICP_SHA512_DIGEST_SIZE_IN_BYTES);
+
+		break;
+
+	case CRYPTO_SHA2_512_HMAC:
+		DPRINTK("%s(): SHA512_HMAC\n", __FUNCTION__);
+		lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
+		lacSessCtx->hashSetupData.hashAlgorithm =
+		    CPA_CY_SYM_HASH_SHA512;
+		lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH;
+		lacSessCtx->hashSetupData.digestResultLenInBytes =
+		    (cri->cri_mlen ?
+		     cri->cri_mlen : ICP_SHA512_DIGEST_SIZE_IN_BYTES);
+		lacSessCtx->hashSetupData.authModeSetupData.authKey =
+		    cri->cri_key;
+		lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes =
+		    cri->cri_klen / NUM_BITS_IN_BYTE;
+		lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0;
+
+		break;
+
+	case CRYPTO_MD5:
+		DPRINTK("%s(): MD5\n", __FUNCTION__);
+		lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
+		lacSessCtx->hashSetupData.hashAlgorithm = CPA_CY_SYM_HASH_MD5;
+		lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN;
+		lacSessCtx->hashSetupData.digestResultLenInBytes =
+		    (cri->cri_mlen ?
+		     cri->cri_mlen : ICP_MD5_DIGEST_SIZE_IN_BYTES);
+
+		break;
+
+	case CRYPTO_MD5_HMAC:
+		DPRINTK("%s(): MD5_HMAC\n", __FUNCTION__);
+		lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
+		lacSessCtx->hashSetupData.hashAlgorithm = CPA_CY_SYM_HASH_MD5;
+		lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH;
+		lacSessCtx->hashSetupData.digestResultLenInBytes =
+		    (cri->cri_mlen ?
+		     cri->cri_mlen : ICP_MD5_DIGEST_SIZE_IN_BYTES);
+		lacSessCtx->hashSetupData.authModeSetupData.authKey =
+		    cri->cri_key;
+		lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes =
+		    cri->cri_klen / NUM_BITS_IN_BYTE;
+		lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0;
+
+		break;
+
+	default:
+		DPRINTK("%s(): ALG Setup FAIL\n", __FUNCTION__);
+		return ICP_OCF_DRV_STATUS_FAIL;
+	}
+
+	return ICP_OCF_DRV_STATUS_SUCCESS;
+}
+
+/* Name        : icp_ocfDrvFreeOCFSession
+ *
+ * Description : This function deletes all existing Session data representing
+ * the Cryptographic session established between OCF and this driver. This
+ * also includes freeing the memory allocated for the session context. The
+ * session object is also removed from the session linked list.
+ */
+static void icp_ocfDrvFreeOCFSession(struct icp_drvSessionData *sessionData)
+{
+
+	sessionData->inUse = ICP_SESSION_DEREGISTERED;
+
+	/*ENTER CRITICAL SECTION */
+	spin_lock_bh(&icp_ocfDrvSymSessInfoListSpinlock);
+
+	if (CPA_TRUE == atomic_read(&icp_ocfDrvIsExiting)) {
+		/*If the Driver is exiting, allow that process to
+		   handle any deletions */
+		/*EXIT CRITICAL SECTION */
+		spin_unlock_bh(&icp_ocfDrvSymSessInfoListSpinlock);
+		return;
+	}
+
+	atomic_dec(&num_ocf_to_drv_registered_sessions);
+
+	list_del(&(sessionData->listNode));
+
+	/*EXIT CRITICAL SECTION */
+	spin_unlock_bh(&icp_ocfDrvSymSessInfoListSpinlock);
+
+	if (NULL != sessionData->sessHandle) {
+		kfree(sessionData->sessHandle);
+	}
+	kmem_cache_free(drvSessionData_zone, sessionData);
+}
+
+/* Name        : icp_ocfDrvFreeLACSession
+ *
+ * Description : This attempts to deregister a LAC session. If it fails, the
+ * deregistation retry function is called.
+ */
+int icp_ocfDrvFreeLACSession(device_t dev, uint64_t sid)
+{
+	CpaCySymSessionCtx sessionToDeregister = NULL;
+	struct icp_drvSessionData *sessionData = NULL;
+	CpaStatus lacStatus = CPA_STATUS_SUCCESS;
+	int retval = 0;
+
+	sessionData = (struct icp_drvSessionData *)CRYPTO_SESID2LID(sid);
+	if (NULL == sessionData) {
+		EPRINTK("%s(): OCF Free session called with Null Session ID.\n",
+			__FUNCTION__);
+		return EINVAL;
+	}
+
+	sessionToDeregister = sessionData->sessHandle;
+
+	if (ICP_SESSION_INITIALISED == sessionData->inUse) {
+		DPRINTK("%s() Session not registered with LAC\n", __FUNCTION__);
+	} else if (NULL == sessionData->sessHandle) {
+		EPRINTK
+		    ("%s(): OCF Free session called with Null Session Handle.\n",
+		     __FUNCTION__);
+		return EINVAL;
+	} else {
+		lacStatus = cpaCySymRemoveSession(CPA_INSTANCE_HANDLE_SINGLE,
+						  sessionToDeregister);
+		if (CPA_STATUS_RETRY == lacStatus) {
+			if (ICP_OCF_DRV_STATUS_SUCCESS !=
+			    icp_ocfDrvDeregRetry(&sessionToDeregister)) {
+				/* the retry function increments the 
+				   dereg failed count */
+				DPRINTK("%s(): LAC failed to deregister the "
+					"session. (localSessionId= %p)\n",
+					__FUNCTION__, sessionToDeregister);
+				retval = EPERM;
+			}
+
+		} else if (CPA_STATUS_SUCCESS != lacStatus) {
+			DPRINTK("%s(): LAC failed to deregister the session. "
+				"localSessionId= %p, lacStatus = %d\n",
+				__FUNCTION__, sessionToDeregister, lacStatus);
+			atomic_inc(&lac_session_failed_dereg_count);
+			retval = EPERM;
+		}
+	}
+
+	icp_ocfDrvFreeOCFSession(sessionData);
+	return retval;
+
+}
+
+/* Name        : icp_ocfDrvAlgCheck 
+ *
+ * Description : This function checks whether the cryptodesc argument pertains
+ * to a sym or hash function
+ */
+static int icp_ocfDrvAlgCheck(struct cryptodesc *crp_desc)
+{
+
+	if (crp_desc->crd_alg == CRYPTO_3DES_CBC ||
+	    crp_desc->crd_alg == CRYPTO_AES_CBC ||
+	    crp_desc->crd_alg == CRYPTO_DES_CBC ||
+	    crp_desc->crd_alg == CRYPTO_NULL_CBC ||
+	    crp_desc->crd_alg == CRYPTO_ARC4) {
+		return ICP_OCF_DRV_ALG_CIPHER;
+	}
+
+	return ICP_OCF_DRV_ALG_HASH;
+}
+
+/* Name        : icp_ocfDrvSymProcess 
+ *
+ * Description : This function will map symmetric functionality calls from OCF
+ * to the LAC API. It will also allocate memory to store the session context.
+ * 
+ * Notes: If it is the first perform call for a given session, then a LAC
+ * session is registered. After the session is registered, no checks as
+ * to whether session paramaters have changed (e.g. alg chain order) are
+ * done.
+ */
+int icp_ocfDrvSymProcess(device_t dev, struct cryptop *crp, int hint)
+{
+	struct icp_drvSessionData *sessionData = NULL;
+	struct icp_drvOpData *drvOpData = NULL;
+	CpaStatus lacStatus = CPA_STATUS_SUCCESS;
+	Cpa32U sessionCtxSizeInBytes = 0;
+	uint16_t numBufferListArray = 0;
+
+	if (NULL == crp) {
+		DPRINTK("%s(): Invalid input parameters, cryptop is NULL\n",
+			__FUNCTION__);
+		return EINVAL;
+	}
+
+	if (NULL == crp->crp_desc) {
+		DPRINTK("%s(): Invalid input parameters, no crp_desc attached "
+			"to crp\n", __FUNCTION__);
+		crp->crp_etype = EINVAL;
+		return EINVAL;
+	}
+
+	if (NULL == crp->crp_buf) {
+		DPRINTK("%s(): Invalid input parameters, no buffer attached "
+			"to crp\n", __FUNCTION__);
+		crp->crp_etype = EINVAL;
+		return EINVAL;
+	}
+
+	if (CPA_TRUE == atomic_read(&icp_ocfDrvIsExiting)) {
+		crp->crp_etype = EFAULT;
+		return EFAULT;
+	}
+
+	sessionData = (struct icp_drvSessionData *)
+	    (CRYPTO_SESID2LID(crp->crp_sid));
+	if (NULL == sessionData) {
+		DPRINTK("%s(): Invalid input parameters, Null Session ID \n",
+			__FUNCTION__);
+		crp->crp_etype = EINVAL;
+		return EINVAL;
+	}
+
+/*If we get a request against a deregisted session, cancel operation*/
+	if (ICP_SESSION_DEREGISTERED == sessionData->inUse) {
+		DPRINTK("%s(): Session ID %d was deregistered \n",
+			__FUNCTION__, (int)(CRYPTO_SESID2LID(crp->crp_sid)));
+		crp->crp_etype = EFAULT;
+		return EFAULT;
+	}
+
+/*If none of the session states are set, then the session structure was either
+  not initialised properly or we are reading from a freed memory area (possible
+  due to OCF batch mode not removing queued requests against deregistered 
+  sessions*/
+	if (ICP_SESSION_INITIALISED != sessionData->inUse &&
+	    ICP_SESSION_RUNNING != sessionData->inUse) {
+		DPRINTK("%s(): Session - ID %d - not properly initialised or "
+			"memory freed back to the kernel \n",
+			__FUNCTION__, (int)(CRYPTO_SESID2LID(crp->crp_sid)));
+		crp->crp_etype = EINVAL;
+		return EINVAL;
+	}
+
+	/*For the below checks, remember error checking is already done in LAC.
+	   We're not validating inputs subsequent to registration */
+	if (sessionData->inUse == ICP_SESSION_INITIALISED) {
+		DPRINTK("%s(): Initialising session\n", __FUNCTION__);
+
+		if (NULL != crp->crp_desc->crd_next) {
+			if (ICP_OCF_DRV_ALG_CIPHER ==
+			    icp_ocfDrvAlgCheck(crp->crp_desc)) {
+
+				sessionData->lacSessCtx.algChainOrder =
+				    CPA_CY_SYM_ALG_CHAIN_ORDER_CIPHER_THEN_HASH;
+
+				if (crp->crp_desc->crd_flags & CRD_F_ENCRYPT) {
+					sessionData->lacSessCtx.cipherSetupData.
+					    cipherDirection =
+					    CPA_CY_SYM_CIPHER_DIRECTION_ENCRYPT;
+				} else {
+					sessionData->lacSessCtx.cipherSetupData.
+					    cipherDirection =
+					    CPA_CY_SYM_CIPHER_DIRECTION_DECRYPT;
+				}
+			} else {
+				sessionData->lacSessCtx.algChainOrder =
+				    CPA_CY_SYM_ALG_CHAIN_ORDER_HASH_THEN_CIPHER;
+
+				if (crp->crp_desc->crd_next->crd_flags &
+				    CRD_F_ENCRYPT) {
+					sessionData->lacSessCtx.cipherSetupData.
+					    cipherDirection =
+					    CPA_CY_SYM_CIPHER_DIRECTION_ENCRYPT;
+				} else {
+					sessionData->lacSessCtx.cipherSetupData.
+					    cipherDirection =
+					    CPA_CY_SYM_CIPHER_DIRECTION_DECRYPT;
+				}
+
+			}
+
+		} else if (ICP_OCF_DRV_ALG_CIPHER ==
+			   icp_ocfDrvAlgCheck(crp->crp_desc)) {
+			if (crp->crp_desc->crd_flags & CRD_F_ENCRYPT) {
+				sessionData->lacSessCtx.cipherSetupData.
+				    cipherDirection =
+				    CPA_CY_SYM_CIPHER_DIRECTION_ENCRYPT;
+			} else {
+				sessionData->lacSessCtx.cipherSetupData.
+				    cipherDirection =
+				    CPA_CY_SYM_CIPHER_DIRECTION_DECRYPT;
+			}
+
+		}
+
+		/*No action required for standalone Auth here */
+
+		/* Allocate memory for SymSessionCtx before the Session Registration */
+		lacStatus =
+		    cpaCySymSessionCtxGetSize(CPA_INSTANCE_HANDLE_SINGLE,
+					      &(sessionData->lacSessCtx),
+					      &sessionCtxSizeInBytes);
+		if (CPA_STATUS_SUCCESS != lacStatus) {
+			EPRINTK("%s(): cpaCySymSessionCtxGetSize failed - %d\n",
+				__FUNCTION__, lacStatus);
+			return EINVAL;
+		}
+		sessionData->sessHandle =
+		    kmalloc(sessionCtxSizeInBytes, GFP_ATOMIC);
+		if (NULL == sessionData->sessHandle) {
+			EPRINTK
+			    ("%s(): Failed to get memory for SymSessionCtx\n",
+			     __FUNCTION__);
+			return ENOMEM;
+		}
+
+		lacStatus = cpaCySymInitSession(CPA_INSTANCE_HANDLE_SINGLE,
+						icp_ocfDrvSymCallBack,
+						&(sessionData->lacSessCtx),
+						sessionData->sessHandle);
+
+		if (CPA_STATUS_SUCCESS != lacStatus) {
+			EPRINTK("%s(): cpaCySymInitSession failed -%d \n",
+				__FUNCTION__, lacStatus);
+			return EFAULT;
+		}
+
+		sessionData->inUse = ICP_SESSION_RUNNING;
+	}
+
+	drvOpData = kmem_cache_zalloc(drvOpData_zone, GFP_ATOMIC);
+	if (NULL == drvOpData) {
+		EPRINTK("%s():Failed to get memory for drvOpData\n",
+			__FUNCTION__);
+		crp->crp_etype = ENOMEM;
+		return ENOMEM;
+	}
+
+	drvOpData->lacOpData.pSessionCtx = sessionData->sessHandle;
+	drvOpData->digestSizeInBytes = sessionData->lacSessCtx.hashSetupData.
+	    digestResultLenInBytes;
+	drvOpData->crp = crp;
+
+	/* Set the default buffer list array memory allocation */
+	drvOpData->srcBuffer.pBuffers = drvOpData->bufferListArray;
+	drvOpData->numBufferListArray = ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS;
+
+	/* 
+	 * Allocate buffer list array memory allocation if the
+	 * data fragment is more than the default allocation
+	 */
+	if (crp->crp_flags & CRYPTO_F_SKBUF) {
+		numBufferListArray = icp_ocfDrvGetSkBuffFrags((struct sk_buff *)
+							      crp->crp_buf);
+		if (ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS < numBufferListArray) {
+			DPRINTK("%s() numBufferListArray more than default\n",
+				__FUNCTION__);
+			drvOpData->srcBuffer.pBuffers = NULL;
+			drvOpData->srcBuffer.pBuffers =
+			    kmalloc(numBufferListArray *
+				    sizeof(CpaFlatBuffer), GFP_ATOMIC);
+			if (NULL == drvOpData->srcBuffer.pBuffers) {
+				EPRINTK("%s() Failed to get memory for "
+					"pBuffers\n", __FUNCTION__);
+				kmem_cache_free(drvOpData_zone, drvOpData);
+				crp->crp_etype = ENOMEM;
+				return ENOMEM;
+			}
+			drvOpData->numBufferListArray = numBufferListArray;
+		}
+	}
+
+	/*
+	 * Check the type of buffer structure we got and convert it into
+	 * CpaBufferList format.
+	 */
+	if (crp->crp_flags & CRYPTO_F_SKBUF) {
+		if (ICP_OCF_DRV_STATUS_SUCCESS !=
+		    icp_ocfDrvSkBuffToBufferList((struct sk_buff *)crp->crp_buf,
+						 &(drvOpData->srcBuffer))) {
+			EPRINTK("%s():Failed to translate from SK_BUF "
+				"to bufferlist\n", __FUNCTION__);
+			crp->crp_etype = EINVAL;
+			goto err;
+		}
+
+		drvOpData->bufferType = CRYPTO_F_SKBUF;
+	} else if (crp->crp_flags & CRYPTO_F_IOV) {
+		/* OCF only supports IOV of one entry. */
+		if (NUM_IOV_SUPPORTED ==
+		    ((struct uio *)(crp->crp_buf))->uio_iovcnt) {
+
+			icp_ocfDrvPtrAndLenToBufferList(((struct uio *)(crp->
+									crp_buf))->
+							uio_iov[0].iov_base,
+							((struct uio *)(crp->
+									crp_buf))->
+							uio_iov[0].iov_len,
+							&(drvOpData->
+							  srcBuffer));
+
+			drvOpData->bufferType = CRYPTO_F_IOV;
+
+		} else {
+			DPRINTK("%s():Unable to handle IOVs with lengths of "
+				"greater than one!\n", __FUNCTION__);
+			crp->crp_etype = EINVAL;
+			goto err;
+		}
+
+	} else {
+		icp_ocfDrvPtrAndLenToBufferList(crp->crp_buf,
+						crp->crp_ilen,
+						&(drvOpData->srcBuffer));
+
+		drvOpData->bufferType = CRYPTO_BUF_CONTIG;
+	}
+
+	if (ICP_OCF_DRV_STATUS_SUCCESS !=
+	    icp_ocfDrvProcessDataSetup(drvOpData, drvOpData->crp->crp_desc)) {
+		crp->crp_etype = EINVAL;
+		goto err;
+	}
+
+	if (drvOpData->crp->crp_desc->crd_next != NULL) {
+		if (icp_ocfDrvProcessDataSetup(drvOpData, drvOpData->crp->
+					       crp_desc->crd_next)) {
+			crp->crp_etype = EINVAL;
+			goto err;
+		}
+
+	}
+
+	/* Allocate srcBuffer's private meta data */
+	if (ICP_OCF_DRV_STATUS_SUCCESS !=
+	    icp_ocfDrvAllocMetaData(&(drvOpData->srcBuffer), drvOpData)) {
+		EPRINTK("%s() icp_ocfDrvAllocMetaData failed\n", __FUNCTION__);
+		memset(&(drvOpData->lacOpData), 0, sizeof(CpaCySymOpData));
+		crp->crp_etype = EINVAL;
+		goto err;
+	}
+
+	/* Perform "in-place" crypto operation */
+	lacStatus = cpaCySymPerformOp(CPA_INSTANCE_HANDLE_SINGLE,
+				      (void *)drvOpData,
+				      &(drvOpData->lacOpData),
+				      &(drvOpData->srcBuffer),
+				      &(drvOpData->srcBuffer),
+				      &(drvOpData->verifyResult));
+	if (CPA_STATUS_RETRY == lacStatus) {
+		DPRINTK("%s(): cpaCySymPerformOp retry, lacStatus = %d\n",
+			__FUNCTION__, lacStatus);
+		memset(&(drvOpData->lacOpData), 0, sizeof(CpaCySymOpData));
+		crp->crp_etype = EINVAL;
+		goto err;
+	}
+	if (CPA_STATUS_SUCCESS != lacStatus) {
+		EPRINTK("%s(): cpaCySymPerformOp failed, lacStatus = %d\n",
+			__FUNCTION__, lacStatus);
+		memset(&(drvOpData->lacOpData), 0, sizeof(CpaCySymOpData));
+		crp->crp_etype = EINVAL;
+		goto err;
+	}
+
+	return 0;		//OCF success status value
+
+      err:
+	if (drvOpData->numBufferListArray > ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS) {
+		kfree(drvOpData->srcBuffer.pBuffers);
+	}
+	icp_ocfDrvFreeMetaData(&(drvOpData->srcBuffer));
+	kmem_cache_free(drvOpData_zone, drvOpData);
+
+	return crp->crp_etype;
+}
+
+/* Name        : icp_ocfDrvProcessDataSetup
+ *
+ * Description : This function will setup all the cryptographic operation data
+ *               that is required by LAC to execute the operation.
+ */
+static int icp_ocfDrvProcessDataSetup(struct icp_drvOpData *drvOpData,
+				      struct cryptodesc *crp_desc)
+{
+	CpaCyRandGenOpData randGenOpData;
+	CpaFlatBuffer randData;
+
+	drvOpData->lacOpData.packetType = CPA_CY_SYM_PACKET_TYPE_FULL;
+
+	/* Convert from the cryptop to the ICP LAC crypto parameters */
+	switch (crp_desc->crd_alg) {
+	case CRYPTO_NULL_CBC:
+		drvOpData->lacOpData.
+		    cryptoStartSrcOffsetInBytes = crp_desc->crd_skip;
+		drvOpData->lacOpData.
+		    messageLenToCipherInBytes = crp_desc->crd_len;
+		drvOpData->verifyResult = CPA_FALSE;
+		drvOpData->lacOpData.ivLenInBytes = NULL_BLOCK_LEN;
+		break;
+	case CRYPTO_DES_CBC:
+		drvOpData->lacOpData.
+		    cryptoStartSrcOffsetInBytes = crp_desc->crd_skip;
+		drvOpData->lacOpData.
+		    messageLenToCipherInBytes = crp_desc->crd_len;
+		drvOpData->verifyResult = CPA_FALSE;
+		drvOpData->lacOpData.ivLenInBytes = DES_BLOCK_LEN;
+		break;
+	case CRYPTO_3DES_CBC:
+		drvOpData->lacOpData.
+		    cryptoStartSrcOffsetInBytes = crp_desc->crd_skip;
+		drvOpData->lacOpData.
+		    messageLenToCipherInBytes = crp_desc->crd_len;
+		drvOpData->verifyResult = CPA_FALSE;
+		drvOpData->lacOpData.ivLenInBytes = DES3_BLOCK_LEN;
+		break;
+	case CRYPTO_ARC4:
+		drvOpData->lacOpData.
+		    cryptoStartSrcOffsetInBytes = crp_desc->crd_skip;
+		drvOpData->lacOpData.
+		    messageLenToCipherInBytes = crp_desc->crd_len;
+		drvOpData->verifyResult = CPA_FALSE;
+		drvOpData->lacOpData.ivLenInBytes = ARC4_COUNTER_LEN;
+		break;
+	case CRYPTO_AES_CBC:
+		drvOpData->lacOpData.
+		    cryptoStartSrcOffsetInBytes = crp_desc->crd_skip;
+		drvOpData->lacOpData.
+		    messageLenToCipherInBytes = crp_desc->crd_len;
+		drvOpData->verifyResult = CPA_FALSE;
+		drvOpData->lacOpData.ivLenInBytes = RIJNDAEL128_BLOCK_LEN;
+		break;
+	case CRYPTO_SHA1:
+	case CRYPTO_SHA1_HMAC:
+	case CRYPTO_SHA2_256:
+	case CRYPTO_SHA2_256_HMAC:
+	case CRYPTO_SHA2_384:
+	case CRYPTO_SHA2_384_HMAC:
+	case CRYPTO_SHA2_512:
+	case CRYPTO_SHA2_512_HMAC:
+	case CRYPTO_MD5:
+	case CRYPTO_MD5_HMAC:
+		drvOpData->lacOpData.
+		    hashStartSrcOffsetInBytes = crp_desc->crd_skip;
+		drvOpData->lacOpData.
+		    messageLenToHashInBytes = crp_desc->crd_len;
+		drvOpData->lacOpData.
+		    pDigestResult =
+		    icp_ocfDrvDigestPointerFind(drvOpData, crp_desc);
+
+		if (NULL == drvOpData->lacOpData.pDigestResult) {
+			DPRINTK("%s(): ERROR - could not calculate "
+				"Digest Result memory address\n", __FUNCTION__);
+			return ICP_OCF_DRV_STATUS_FAIL;
+		}
+
+		drvOpData->lacOpData.digestVerify = CPA_FALSE;
+		break;
+	default:
+		DPRINTK("%s(): Crypto process error - algorithm not "
+			"found \n", __FUNCTION__);
+		return ICP_OCF_DRV_STATUS_FAIL;
+	}
+
+	/* Figure out what the IV is supposed to be */
+	if ((crp_desc->crd_alg == CRYPTO_DES_CBC) ||
+	    (crp_desc->crd_alg == CRYPTO_3DES_CBC) ||
+	    (crp_desc->crd_alg == CRYPTO_AES_CBC)) {
+		/*ARC4 doesn't use an IV */
+		if (crp_desc->crd_flags & CRD_F_IV_EXPLICIT) {
+			/* Explicit IV provided to OCF */
+			drvOpData->lacOpData.pIv = crp_desc->crd_iv;
+		} else {
+			/* IV is not explicitly provided to OCF */
+
+			/* Point the LAC OP Data IV pointer to our allocated
+			   storage location for this session. */
+			drvOpData->lacOpData.pIv = drvOpData->ivData;
+
+			if ((crp_desc->crd_flags & CRD_F_ENCRYPT) &&
+			    ((crp_desc->crd_flags & CRD_F_IV_PRESENT) == 0)) {
+
+				/* Encrypting - need to create IV */
+				randGenOpData.generateBits = CPA_TRUE;
+				randGenOpData.lenInBytes = MAX_IV_LEN_IN_BYTES;
+
+				icp_ocfDrvPtrAndLenToFlatBuffer((Cpa8U *)
+								drvOpData->
+								ivData,
+								MAX_IV_LEN_IN_BYTES,
+								&randData);
+
+				if (CPA_STATUS_SUCCESS !=
+				    cpaCyRandGen(CPA_INSTANCE_HANDLE_SINGLE,
+						 NULL, NULL,
+						 &randGenOpData, &randData)) {
+					DPRINTK("%s(): ERROR - Failed to"
+						" generate"
+						" Initialisation Vector\n",
+						__FUNCTION__);
+					return ICP_OCF_DRV_STATUS_FAIL;
+				}
+
+				crypto_copyback(drvOpData->crp->
+						crp_flags,
+						drvOpData->crp->crp_buf,
+						crp_desc->crd_inject,
+						drvOpData->lacOpData.
+						ivLenInBytes,
+						(caddr_t) (drvOpData->lacOpData.
+							   pIv));
+			} else {
+				/* Reading IV from buffer */
+				crypto_copydata(drvOpData->crp->
+						crp_flags,
+						drvOpData->crp->crp_buf,
+						crp_desc->crd_inject,
+						drvOpData->lacOpData.
+						ivLenInBytes,
+						(caddr_t) (drvOpData->lacOpData.
+							   pIv));
+			}
+
+		}
+
+	}
+
+	return ICP_OCF_DRV_STATUS_SUCCESS;
+}
+
+/* Name        : icp_ocfDrvDigestPointerFind
+ *
+ * Description : This function is used to find the memory address of where the
+ * digest information shall be stored in. Input buffer types are an skbuff, iov
+ * or flat buffer. The address is found using the buffer data start address and
+ * an offset.
+ *
+ * Note: In the case of a linux skbuff, the digest address may exist within
+ * a memory space linked to from the start buffer. These linked memory spaces
+ * must be traversed by the data length offset in order to find the digest start
+ * address. Whether there is enough space for the digest must also be checked.
+ */
+
+static uint8_t *icp_ocfDrvDigestPointerFind(struct icp_drvOpData *drvOpData,
+					    struct cryptodesc *crp_desc)
+{
+
+	int offsetInBytes = crp_desc->crd_inject;
+	uint32_t digestSizeInBytes = drvOpData->digestSizeInBytes;
+	uint8_t *flat_buffer_base = NULL;
+	int flat_buffer_length = 0;
+	struct sk_buff *skb;
+
+	if (drvOpData->crp->crp_flags & CRYPTO_F_SKBUF) {
+		/*check if enough overall space to store hash */
+		skb = (struct sk_buff *)(drvOpData->crp->crp_buf);
+
+		if (skb->len < (offsetInBytes + digestSizeInBytes)) {
+			DPRINTK("%s() Not enough space for Digest"
+				" payload after the offset (%d), "
+				"digest size (%d) \n", __FUNCTION__,
+				offsetInBytes, digestSizeInBytes);
+			return NULL;
+		}
+
+		return icp_ocfDrvSkbuffDigestPointerFind(drvOpData,
+							 offsetInBytes,
+							 digestSizeInBytes);
+
+	} else {
+		/* IOV or flat buffer */
+		if (drvOpData->crp->crp_flags & CRYPTO_F_IOV) {
+			/*single IOV check has already been done */
+			flat_buffer_base = ((struct uio *)
+					    (drvOpData->crp->crp_buf))->
+			    uio_iov[0].iov_base;
+			flat_buffer_length = ((struct uio *)
+					      (drvOpData->crp->crp_buf))->
+			    uio_iov[0].iov_len;
+		} else {
+			flat_buffer_base = (uint8_t *) drvOpData->crp->crp_buf;
+			flat_buffer_length = drvOpData->crp->crp_ilen;
+		}
+
+		if (flat_buffer_length < (offsetInBytes + digestSizeInBytes)) {
+			DPRINTK("%s() Not enough space for Digest "
+				"(IOV/Flat Buffer) \n", __FUNCTION__);
+			return NULL;
+		} else {
+			return (uint8_t *) (flat_buffer_base + offsetInBytes);
+		}
+	}
+	DPRINTK("%s() Should not reach this point\n", __FUNCTION__);
+	return NULL;
+}
+
+/* Name        : icp_ocfDrvSkbuffDigestPointerFind
+ *
+ * Description : This function is used by icp_ocfDrvDigestPointerFind to process
+ * the non-linear portion of the skbuff if the fragmentation type is a linked
+ * list (frag_list is not NULL in the skb_shared_info structure)
+ */
+static inline uint8_t *icp_ocfDrvSkbuffDigestPointerFind(struct icp_drvOpData
+							 *drvOpData,
+							 int offsetInBytes,
+							 uint32_t
+							 digestSizeInBytes)
+{
+
+	struct sk_buff *skb = NULL;
+	struct skb_shared_info *skb_shared = NULL;
+
+	uint32_t skbuffisnonlinear = 0;
+
+	uint32_t skbheadlen = 0;
+
+	skb = (struct sk_buff *)(drvOpData->crp->crp_buf);
+	skbuffisnonlinear = skb_is_nonlinear(skb);
+
+	skbheadlen = skb_headlen(skb);
+
+	/*Linear skb checks */
+	if (skbheadlen > offsetInBytes) {
+
+		if (skbheadlen >= (offsetInBytes + digestSizeInBytes)) {
+			return (uint8_t *) (skb->data + offsetInBytes);
+		} else {
+			DPRINTK("%s() Auth payload stretches "
+				"accross contiguous memory\n", __FUNCTION__);
+			return NULL;
+		}
+	} else {
+		if (skbuffisnonlinear) {
+			offsetInBytes -= skbheadlen;
+		} else {
+			DPRINTK("%s() Offset outside of buffer boundaries\n",
+				__FUNCTION__);
+			return NULL;
+		}
+	}
+
+	/*Non Linear checks */
+	skb_shared = (struct skb_shared_info *)(skb->end);
+	if (unlikely(NULL == skb_shared)) {
+		DPRINTK("%s() skbuff shared info stucture is NULL! \n",
+			__FUNCTION__);
+		return NULL;
+	} else if ((0 != skb_shared->nr_frags) &&
+		   (skb_shared->frag_list != NULL)) {
+		DPRINTK("%s() skbuff nr_frags AND "
+			"frag_list not supported \n", __FUNCTION__);
+		return NULL;
+	}
+
+	/*TCP segmentation more likely than IP fragmentation */
+	if (likely(0 != skb_shared->nr_frags)) {
+		return icp_ocfDrvDigestSkbNRFragsCheck(skb, skb_shared,
+						       offsetInBytes,
+						       digestSizeInBytes);
+	} else if (skb_shared->frag_list != NULL) {
+		return icp_ocfDrvDigestSkbFragListCheck(skb, skb_shared,
+							offsetInBytes,
+							digestSizeInBytes);
+	} else {
+		DPRINTK("%s() skbuff is non-linear but does not show any "
+			"linked data\n", __FUNCTION__);
+		return NULL;
+	}
+
+}
+
+/* Name        : icp_ocfDrvDigestSkbNRFragsCheck
+ *
+ * Description : This function is used by icp_ocfDrvSkbuffDigestPointerFind to
+ * process the non-linear portion of the skbuff, if the fragmentation type is
+ * page fragments
+ */
+static inline uint8_t *icp_ocfDrvDigestSkbNRFragsCheck(struct sk_buff *skb,
+						       struct skb_shared_info
+						       *skb_shared,
+						       int offsetInBytes,
+						       uint32_t
+						       digestSizeInBytes)
+{
+	int i = 0;
+	/*nr_frags starts from 1 */
+	if (MAX_SKB_FRAGS < skb_shared->nr_frags) {
+		DPRINTK("%s error processing skbuff "
+			"page frame -- MAX FRAGS exceeded \n", __FUNCTION__);
+		return NULL;
+	}
+
+	for (i = 0; i < skb_shared->nr_frags; i++) {
+
+		if (offsetInBytes >= skb_shared->frags[i].size) {
+			/*offset still greater than data position */
+			offsetInBytes -= skb_shared->frags[i].size;
+		} else {
+			/* found the page containing start of hash */
+
+			if (NULL == skb_shared->frags[i].page) {
+				DPRINTK("%s() Linked page is NULL!\n",
+					__FUNCTION__);
+				return NULL;
+			}
+
+			if (offsetInBytes + digestSizeInBytes >
+			    skb_shared->frags[i].size) {
+				DPRINTK("%s() Auth payload stretches accross "
+					"contiguous memory\n", __FUNCTION__);
+				return NULL;
+			} else {
+				return (uint8_t *) (skb_shared->frags[i].page +
+						    skb_shared->frags[i].
+						    page_offset +
+						    offsetInBytes);
+			}
+		}
+		/*only possible if internal page sizes are set wrong */
+		if (offsetInBytes < 0) {
+			DPRINTK("%s error processing skbuff page frame "
+				"-- offset calculation \n", __FUNCTION__);
+			return NULL;
+		}
+	}
+	/*only possible if internal page sizes are set wrong */
+	DPRINTK("%s error processing skbuff page frame "
+		"-- ran out of page fragments, remaining offset = %d \n",
+		__FUNCTION__, offsetInBytes);
+	return NULL;
+
+}
+
+/* Name        : icp_ocfDrvDigestSkbFragListCheck
+ *
+ * Description : This function is used by icp_ocfDrvSkbuffDigestPointerFind to 
+ * process the non-linear portion of the skbuff, if the fragmentation type is 
+ * a linked list
+ * 
+ */
+static inline uint8_t *icp_ocfDrvDigestSkbFragListCheck(struct sk_buff *skb,
+							struct skb_shared_info
+							*skb_shared,
+							int offsetInBytes,
+							uint32_t
+							digestSizeInBytes)
+{
+
+	struct sk_buff *skb_list = skb_shared->frag_list;
+	/*check added for readability */
+	if (NULL == skb_list) {
+		DPRINTK("%s error processing skbuff "
+			"-- no more list! \n", __FUNCTION__);
+		return NULL;
+	}
+
+	for (; skb_list; skb_list = skb_list->next) {
+		if (NULL == skb_list) {
+			DPRINTK("%s error processing skbuff "
+				"-- no more list! \n", __FUNCTION__);
+			return NULL;
+		}
+
+		if (offsetInBytes >= skb_list->len) {
+			offsetInBytes -= skb_list->len;
+
+		} else {
+			if (offsetInBytes + digestSizeInBytes > skb_list->len) {
+				DPRINTK("%s() Auth payload stretches accross "
+					"contiguous memory\n", __FUNCTION__);
+				return NULL;
+			} else {
+				return (uint8_t *)
+				    (skb_list->data + offsetInBytes);
+			}
+
+		}
+
+		/*This check is only needed if internal skb_list length values
+		   are set wrong. */
+		if (0 > offsetInBytes) {
+			DPRINTK("%s() error processing skbuff object -- offset "
+				"calculation \n", __FUNCTION__);
+			return NULL;
+		}
+
+	}
+
+	/*catch all for unusual for-loop exit. 
+	   This code should never be reached */
+	DPRINTK("%s() Catch-All hit! Process error.\n", __FUNCTION__);
+	return NULL;
+}
diff -Nur linux-2.6.29.1.orig/crypto/ocf/hifn/Makefile linux-2.6.29.1/crypto/ocf/hifn/Makefile
--- linux-2.6.29.1.orig/crypto/ocf/hifn/Makefile	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/hifn/Makefile	2009-04-20 20:01:21.516556358 +0200
@@ -0,0 +1,13 @@
+# for SGlinux builds
+-include $(ROOTDIR)/modules/.config
+
+obj-$(CONFIG_OCF_HIFN)     += hifn7751.o
+obj-$(CONFIG_OCF_HIFNHIPP) += hifnHIPP.o
+
+obj ?= .
+EXTRA_CFLAGS += -I$(obj)/.. -I$(obj)/
+
+ifdef TOPDIR
+-include $(TOPDIR)/Rules.make
+endif
+
diff -Nur linux-2.6.29.1.orig/crypto/ocf/hifn/hifn7751.c linux-2.6.29.1/crypto/ocf/hifn/hifn7751.c
--- linux-2.6.29.1.orig/crypto/ocf/hifn/hifn7751.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/hifn/hifn7751.c	2009-04-20 20:01:21.484554239 +0200
@@ -0,0 +1,2970 @@
+/*	$OpenBSD: hifn7751.c,v 1.120 2002/05/17 00:33:34 deraadt Exp $	*/
+
+/*-
+ * Invertex AEON / Hifn 7751 driver
+ * Copyright (c) 1999 Invertex Inc. All rights reserved.
+ * Copyright (c) 1999 Theo de Raadt
+ * Copyright (c) 2000-2001 Network Security Technologies, Inc.
+ *			http://www.netsec.net
+ * Copyright (c) 2003 Hifn Inc.
+ *
+ * This driver is based on a previous driver by Invertex, for which they
+ * requested:  Please send any comments, feedback, bug-fixes, or feature
+ * requests to software@invertex.com.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Effort sponsored in part by the Defense Advanced Research Projects
+ * Agency (DARPA) and Air Force Research Laboratory, Air Force
+ * Materiel Command, USAF, under agreement number F30602-01-2-0537.
+ *
+ *
+__FBSDID("$FreeBSD: src/sys/dev/hifn/hifn7751.c,v 1.40 2007/03/21 03:42:49 sam Exp $");
+ */
+
+/*
+ * Driver for various Hifn encryption processors.
+ */
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/wait.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/random.h>
+#include <linux/version.h>
+#include <linux/skbuff.h>
+#include <asm/io.h>
+
+#include <cryptodev.h>
+#include <uio.h>
+#include <hifn/hifn7751reg.h>
+#include <hifn/hifn7751var.h>
+
+#if 1
+#define	DPRINTF(a...)	if (hifn_debug) { \
+							printk("%s: ", sc ? \
+								device_get_nameunit(sc->sc_dev) : "hifn"); \
+							printk(a); \
+						} else
+#else
+#define	DPRINTF(a...)
+#endif
+
+static inline int
+pci_get_revid(struct pci_dev *dev)
+{
+	u8 rid = 0;
+	pci_read_config_byte(dev, PCI_REVISION_ID, &rid);
+	return rid;
+}
+
+static	struct hifn_stats hifnstats;
+
+#define	debug hifn_debug
+int hifn_debug = 0;
+module_param(hifn_debug, int, 0644);
+MODULE_PARM_DESC(hifn_debug, "Enable debug");
+
+int hifn_maxbatch = 1;
+module_param(hifn_maxbatch, int, 0644);
+MODULE_PARM_DESC(hifn_maxbatch, "max ops to batch w/o interrupt");
+
+#ifdef MODULE_PARM
+char *hifn_pllconfig = NULL;
+MODULE_PARM(hifn_pllconfig, "s");
+#else
+char hifn_pllconfig[32]; /* This setting is RO after loading */
+module_param_string(hifn_pllconfig, hifn_pllconfig, 32, 0444);
+#endif
+MODULE_PARM_DESC(hifn_pllconfig, "PLL config, ie., pci66, ext33, ...");
+
+#ifdef HIFN_VULCANDEV
+#include <sys/conf.h>
+#include <sys/uio.h>
+
+static struct cdevsw vulcanpk_cdevsw; /* forward declaration */
+#endif
+
+/*
+ * Prototypes and count for the pci_device structure
+ */
+static	int  hifn_probe(struct pci_dev *dev, const struct pci_device_id *ent);
+static	void hifn_remove(struct pci_dev *dev);
+
+static	int hifn_newsession(device_t, u_int32_t *, struct cryptoini *);
+static	int hifn_freesession(device_t, u_int64_t);
+static	int hifn_process(device_t, struct cryptop *, int);
+
+static device_method_t hifn_methods = {
+	/* crypto device methods */
+	DEVMETHOD(cryptodev_newsession,	hifn_newsession),
+	DEVMETHOD(cryptodev_freesession,hifn_freesession),
+	DEVMETHOD(cryptodev_process,	hifn_process),
+};
+
+static	void hifn_reset_board(struct hifn_softc *, int);
+static	void hifn_reset_puc(struct hifn_softc *);
+static	void hifn_puc_wait(struct hifn_softc *);
+static	int hifn_enable_crypto(struct hifn_softc *);
+static	void hifn_set_retry(struct hifn_softc *sc);
+static	void hifn_init_dma(struct hifn_softc *);
+static	void hifn_init_pci_registers(struct hifn_softc *);
+static	int hifn_sramsize(struct hifn_softc *);
+static	int hifn_dramsize(struct hifn_softc *);
+static	int hifn_ramtype(struct hifn_softc *);
+static	void hifn_sessions(struct hifn_softc *);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19)
+static irqreturn_t hifn_intr(int irq, void *arg);
+#else
+static irqreturn_t hifn_intr(int irq, void *arg, struct pt_regs *regs);
+#endif
+static	u_int hifn_write_command(struct hifn_command *, u_int8_t *);
+static	u_int32_t hifn_next_signature(u_int32_t a, u_int cnt);
+static	void hifn_callback(struct hifn_softc *, struct hifn_command *, u_int8_t *);
+static	int hifn_crypto(struct hifn_softc *, struct hifn_command *, struct cryptop *, int);
+static	int hifn_readramaddr(struct hifn_softc *, int, u_int8_t *);
+static	int hifn_writeramaddr(struct hifn_softc *, int, u_int8_t *);
+static	int hifn_dmamap_load_src(struct hifn_softc *, struct hifn_command *);
+static	int hifn_dmamap_load_dst(struct hifn_softc *, struct hifn_command *);
+static	int hifn_init_pubrng(struct hifn_softc *);
+static	void hifn_tick(unsigned long arg);
+static	void hifn_abort(struct hifn_softc *);
+static	void hifn_alloc_slot(struct hifn_softc *, int *, int *, int *, int *);
+
+static	void hifn_write_reg_0(struct hifn_softc *, bus_size_t, u_int32_t);
+static	void hifn_write_reg_1(struct hifn_softc *, bus_size_t, u_int32_t);
+
+#ifdef CONFIG_OCF_RANDOMHARVEST
+static	int hifn_read_random(void *arg, u_int32_t *buf, int len);
+#endif
+
+#define HIFN_MAX_CHIPS	8
+static struct hifn_softc *hifn_chip_idx[HIFN_MAX_CHIPS];
+
+static __inline u_int32_t
+READ_REG_0(struct hifn_softc *sc, bus_size_t reg)
+{
+	u_int32_t v = readl(sc->sc_bar0 + reg);
+	sc->sc_bar0_lastreg = (bus_size_t) -1;
+	return (v);
+}
+#define	WRITE_REG_0(sc, reg, val)	hifn_write_reg_0(sc, reg, val)
+
+static __inline u_int32_t
+READ_REG_1(struct hifn_softc *sc, bus_size_t reg)
+{
+	u_int32_t v = readl(sc->sc_bar1 + reg);
+	sc->sc_bar1_lastreg = (bus_size_t) -1;
+	return (v);
+}
+#define	WRITE_REG_1(sc, reg, val)	hifn_write_reg_1(sc, reg, val)
+
+/*
+ * map in a given buffer (great on some arches :-)
+ */
+
+static int
+pci_map_uio(struct hifn_softc *sc, struct hifn_operand *buf, struct uio *uio)
+{
+	struct iovec *iov = uio->uio_iov;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	buf->mapsize = 0;
+	for (buf->nsegs = 0; buf->nsegs < uio->uio_iovcnt; ) {
+		buf->segs[buf->nsegs].ds_addr = pci_map_single(sc->sc_pcidev,
+				iov->iov_base, iov->iov_len,
+				PCI_DMA_BIDIRECTIONAL);
+		buf->segs[buf->nsegs].ds_len = iov->iov_len;
+		buf->mapsize += iov->iov_len;
+		iov++;
+		buf->nsegs++;
+	}
+	/* identify this buffer by the first segment */
+	buf->map = (void *) buf->segs[0].ds_addr;
+	return(0);
+}
+
+/*
+ * map in a given sk_buff
+ */
+
+static int
+pci_map_skb(struct hifn_softc *sc,struct hifn_operand *buf,struct sk_buff *skb)
+{
+	int i;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	buf->mapsize = 0;
+
+	buf->segs[0].ds_addr = pci_map_single(sc->sc_pcidev,
+			skb->data, skb_headlen(skb), PCI_DMA_BIDIRECTIONAL);
+	buf->segs[0].ds_len = skb_headlen(skb);
+	buf->mapsize += buf->segs[0].ds_len;
+
+	buf->nsegs = 1;
+
+	for (i = 0; i < skb_shinfo(skb)->nr_frags; ) {
+		buf->segs[buf->nsegs].ds_len = skb_shinfo(skb)->frags[i].size;
+		buf->segs[buf->nsegs].ds_addr = pci_map_single(sc->sc_pcidev,
+				page_address(skb_shinfo(skb)->frags[i].page) +
+					skb_shinfo(skb)->frags[i].page_offset,
+				buf->segs[buf->nsegs].ds_len, PCI_DMA_BIDIRECTIONAL);
+		buf->mapsize += buf->segs[buf->nsegs].ds_len;
+		buf->nsegs++;
+	}
+
+	/* identify this buffer by the first segment */
+	buf->map = (void *) buf->segs[0].ds_addr;
+	return(0);
+}
+
+/*
+ * map in a given contiguous buffer
+ */
+
+static int
+pci_map_buf(struct hifn_softc *sc,struct hifn_operand *buf, void *b, int len)
+{
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	buf->mapsize = 0;
+	buf->segs[0].ds_addr = pci_map_single(sc->sc_pcidev,
+			b, len, PCI_DMA_BIDIRECTIONAL);
+	buf->segs[0].ds_len = len;
+	buf->mapsize += buf->segs[0].ds_len;
+	buf->nsegs = 1;
+
+	/* identify this buffer by the first segment */
+	buf->map = (void *) buf->segs[0].ds_addr;
+	return(0);
+}
+
+#if 0 /* not needed at this time */
+static void
+pci_sync_iov(struct hifn_softc *sc, struct hifn_operand *buf)
+{
+	int i;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+	for (i = 0; i < buf->nsegs; i++)
+		pci_dma_sync_single_for_cpu(sc->sc_pcidev, buf->segs[i].ds_addr,
+				buf->segs[i].ds_len, PCI_DMA_BIDIRECTIONAL);
+}
+#endif
+
+static void
+pci_unmap_buf(struct hifn_softc *sc, struct hifn_operand *buf)
+{
+	int i;
+	DPRINTF("%s()\n", __FUNCTION__);
+	for (i = 0; i < buf->nsegs; i++) {
+		pci_unmap_single(sc->sc_pcidev, buf->segs[i].ds_addr,
+				buf->segs[i].ds_len, PCI_DMA_BIDIRECTIONAL);
+		buf->segs[i].ds_addr = 0;
+		buf->segs[i].ds_len = 0;
+	}
+	buf->nsegs = 0;
+	buf->mapsize = 0;
+	buf->map = 0;
+}
+
+static const char*
+hifn_partname(struct hifn_softc *sc)
+{
+	/* XXX sprintf numbers when not decoded */
+	switch (pci_get_vendor(sc->sc_pcidev)) {
+	case PCI_VENDOR_HIFN:
+		switch (pci_get_device(sc->sc_pcidev)) {
+		case PCI_PRODUCT_HIFN_6500:	return "Hifn 6500";
+		case PCI_PRODUCT_HIFN_7751:	return "Hifn 7751";
+		case PCI_PRODUCT_HIFN_7811:	return "Hifn 7811";
+		case PCI_PRODUCT_HIFN_7951:	return "Hifn 7951";
+		case PCI_PRODUCT_HIFN_7955:	return "Hifn 7955";
+		case PCI_PRODUCT_HIFN_7956:	return "Hifn 7956";
+		}
+		return "Hifn unknown-part";
+	case PCI_VENDOR_INVERTEX:
+		switch (pci_get_device(sc->sc_pcidev)) {
+		case PCI_PRODUCT_INVERTEX_AEON:	return "Invertex AEON";
+		}
+		return "Invertex unknown-part";
+	case PCI_VENDOR_NETSEC:
+		switch (pci_get_device(sc->sc_pcidev)) {
+		case PCI_PRODUCT_NETSEC_7751:	return "NetSec 7751";
+		}
+		return "NetSec unknown-part";
+	}
+	return "Unknown-vendor unknown-part";
+}
+
+static u_int
+checkmaxmin(struct pci_dev *dev, const char *what, u_int v, u_int min, u_int max)
+{
+	struct hifn_softc *sc = pci_get_drvdata(dev);
+	if (v > max) {
+		device_printf(sc->sc_dev, "Warning, %s %u out of range, "
+			"using max %u\n", what, v, max);
+		v = max;
+	} else if (v < min) {
+		device_printf(sc->sc_dev, "Warning, %s %u out of range, "
+			"using min %u\n", what, v, min);
+		v = min;
+	}
+	return v;
+}
+
+/*
+ * Select PLL configuration for 795x parts.  This is complicated in
+ * that we cannot determine the optimal parameters without user input.
+ * The reference clock is derived from an external clock through a
+ * multiplier.  The external clock is either the host bus (i.e. PCI)
+ * or an external clock generator.  When using the PCI bus we assume
+ * the clock is either 33 or 66 MHz; for an external source we cannot
+ * tell the speed.
+ *
+ * PLL configuration is done with a string: "pci" for PCI bus, or "ext"
+ * for an external source, followed by the frequency.  We calculate
+ * the appropriate multiplier and PLL register contents accordingly.
+ * When no configuration is given we default to "pci66" since that
+ * always will allow the card to work.  If a card is using the PCI
+ * bus clock and in a 33MHz slot then it will be operating at half
+ * speed until the correct information is provided.
+ *
+ * We use a default setting of "ext66" because according to Mike Ham
+ * of HiFn, almost every board in existence has an external crystal
+ * populated at 66Mhz. Using PCI can be a problem on modern motherboards,
+ * because PCI33 can have clocks from 0 to 33Mhz, and some have
+ * non-PCI-compliant spread-spectrum clocks, which can confuse the pll.
+ */
+static void
+hifn_getpllconfig(struct pci_dev *dev, u_int *pll)
+{
+	const char *pllspec = hifn_pllconfig;
+	u_int freq, mul, fl, fh;
+	u_int32_t pllconfig;
+	char *nxt;
+
+	if (pllspec == NULL)
+		pllspec = "ext66";
+	fl = 33, fh = 66;
+	pllconfig = 0;
+	if (strncmp(pllspec, "ext", 3) == 0) {
+		pllspec += 3;
+		pllconfig |= HIFN_PLL_REF_SEL;
+		switch (pci_get_device(dev)) {
+		case PCI_PRODUCT_HIFN_7955:
+		case PCI_PRODUCT_HIFN_7956:
+			fl = 20, fh = 100;
+			break;
+#ifdef notyet
+		case PCI_PRODUCT_HIFN_7954:
+			fl = 20, fh = 66;
+			break;
+#endif
+		}
+	} else if (strncmp(pllspec, "pci", 3) == 0)
+		pllspec += 3;
+	freq = strtoul(pllspec, &nxt, 10);
+	if (nxt == pllspec)
+		freq = 66;
+	else
+		freq = checkmaxmin(dev, "frequency", freq, fl, fh);
+	/*
+	 * Calculate multiplier.  We target a Fck of 266 MHz,
+	 * allowing only even values, possibly rounded down.
+	 * Multipliers > 8 must set the charge pump current.
+	 */
+	mul = checkmaxmin(dev, "PLL divisor", (266 / freq) &~ 1, 2, 12);
+	pllconfig |= (mul / 2 - 1) << HIFN_PLL_ND_SHIFT;
+	if (mul > 8)
+		pllconfig |= HIFN_PLL_IS;
+	*pll = pllconfig;
+}
+
+/*
+ * Attach an interface that successfully probed.
+ */
+static int
+hifn_probe(struct pci_dev *dev, const struct pci_device_id *ent)
+{
+	struct hifn_softc *sc = NULL;
+	char rbase;
+	u_int16_t ena, rev;
+	int rseg, rc;
+	unsigned long mem_start, mem_len;
+	static int num_chips = 0;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	if (pci_enable_device(dev) < 0)
+		return(-ENODEV);
+
+	if (pci_set_mwi(dev))
+		return(-ENODEV);
+
+	if (!dev->irq) {
+		printk("hifn: found device with no IRQ assigned. check BIOS settings!");
+		pci_disable_device(dev);
+		return(-ENODEV);
+	}
+
+	sc = (struct hifn_softc *) kmalloc(sizeof(*sc), GFP_KERNEL);
+	if (!sc)
+		return(-ENOMEM);
+	memset(sc, 0, sizeof(*sc));
+
+	softc_device_init(sc, "hifn", num_chips, hifn_methods);
+
+	sc->sc_pcidev = dev;
+	sc->sc_irq = -1;
+	sc->sc_cid = -1;
+	sc->sc_num = num_chips++;
+	if (sc->sc_num < HIFN_MAX_CHIPS)
+		hifn_chip_idx[sc->sc_num] = sc;
+
+	pci_set_drvdata(sc->sc_pcidev, sc);
+
+	spin_lock_init(&sc->sc_mtx);
+
+	/* XXX handle power management */
+
+	/*
+	 * The 7951 and 795x have a random number generator and
+	 * public key support; note this.
+	 */
+	if (pci_get_vendor(dev) == PCI_VENDOR_HIFN &&
+	    (pci_get_device(dev) == PCI_PRODUCT_HIFN_7951 ||
+	     pci_get_device(dev) == PCI_PRODUCT_HIFN_7955 ||
+	     pci_get_device(dev) == PCI_PRODUCT_HIFN_7956))
+		sc->sc_flags = HIFN_HAS_RNG | HIFN_HAS_PUBLIC;
+	/*
+	 * The 7811 has a random number generator and
+	 * we also note it's identity 'cuz of some quirks.
+	 */
+	if (pci_get_vendor(dev) == PCI_VENDOR_HIFN &&
+	    pci_get_device(dev) == PCI_PRODUCT_HIFN_7811)
+		sc->sc_flags |= HIFN_IS_7811 | HIFN_HAS_RNG;
+
+	/*
+	 * The 795x parts support AES.
+	 */
+	if (pci_get_vendor(dev) == PCI_VENDOR_HIFN &&
+	    (pci_get_device(dev) == PCI_PRODUCT_HIFN_7955 ||
+	     pci_get_device(dev) == PCI_PRODUCT_HIFN_7956)) {
+		sc->sc_flags |= HIFN_IS_7956 | HIFN_HAS_AES;
+		/*
+		 * Select PLL configuration.  This depends on the
+		 * bus and board design and must be manually configured
+		 * if the default setting is unacceptable.
+		 */
+		hifn_getpllconfig(dev, &sc->sc_pllconfig);
+	}
+
+	/*
+	 * Setup PCI resources. Note that we record the bus
+	 * tag and handle for each register mapping, this is
+	 * used by the READ_REG_0, WRITE_REG_0, READ_REG_1,
+	 * and WRITE_REG_1 macros throughout the driver.
+	 */
+	mem_start = pci_resource_start(sc->sc_pcidev, 0);
+	mem_len   = pci_resource_len(sc->sc_pcidev, 0);
+	sc->sc_bar0 = (ocf_iomem_t) ioremap(mem_start, mem_len);
+	if (!sc->sc_bar0) {
+		device_printf(sc->sc_dev, "cannot map bar%d register space\n", 0);
+		goto fail;
+	}
+	sc->sc_bar0_lastreg = (bus_size_t) -1;
+
+	mem_start = pci_resource_start(sc->sc_pcidev, 1);
+	mem_len   = pci_resource_len(sc->sc_pcidev, 1);
+	sc->sc_bar1 = (ocf_iomem_t) ioremap(mem_start, mem_len);
+	if (!sc->sc_bar1) {
+		device_printf(sc->sc_dev, "cannot map bar%d register space\n", 1);
+		goto fail;
+	}
+	sc->sc_bar1_lastreg = (bus_size_t) -1;
+
+	/* fix up the bus size */
+	if (pci_set_dma_mask(dev, DMA_32BIT_MASK)) {
+		device_printf(sc->sc_dev, "No usable DMA configuration, aborting.\n");
+		goto fail;
+	}
+	if (pci_set_consistent_dma_mask(dev, DMA_32BIT_MASK)) {
+		device_printf(sc->sc_dev,
+				"No usable consistent DMA configuration, aborting.\n");
+		goto fail;
+	}
+
+	hifn_set_retry(sc);
+
+	/*
+	 * Setup the area where the Hifn DMA's descriptors
+	 * and associated data structures.
+	 */
+	sc->sc_dma = (struct hifn_dma *) pci_alloc_consistent(dev,
+			sizeof(*sc->sc_dma),
+			&sc->sc_dma_physaddr);
+	if (!sc->sc_dma) {
+		device_printf(sc->sc_dev, "cannot alloc sc_dma\n");
+		goto fail;
+	}
+	bzero(sc->sc_dma, sizeof(*sc->sc_dma));
+
+	/*
+	 * Reset the board and do the ``secret handshake''
+	 * to enable the crypto support.  Then complete the
+	 * initialization procedure by setting up the interrupt
+	 * and hooking in to the system crypto support so we'll
+	 * get used for system services like the crypto device,
+	 * IPsec, RNG device, etc.
+	 */
+	hifn_reset_board(sc, 0);
+
+	if (hifn_enable_crypto(sc) != 0) {
+		device_printf(sc->sc_dev, "crypto enabling failed\n");
+		goto fail;
+	}
+	hifn_reset_puc(sc);
+
+	hifn_init_dma(sc);
+	hifn_init_pci_registers(sc);
+
+	pci_set_master(sc->sc_pcidev);
+
+	/* XXX can't dynamically determine ram type for 795x; force dram */
+	if (sc->sc_flags & HIFN_IS_7956)
+		sc->sc_drammodel = 1;
+	else if (hifn_ramtype(sc))
+		goto fail;
+
+	if (sc->sc_drammodel == 0)
+		hifn_sramsize(sc);
+	else
+		hifn_dramsize(sc);
+
+	/*
+	 * Workaround for NetSec 7751 rev A: half ram size because two
+	 * of the address lines were left floating
+	 */
+	if (pci_get_vendor(dev) == PCI_VENDOR_NETSEC &&
+	    pci_get_device(dev) == PCI_PRODUCT_NETSEC_7751 &&
+	    pci_get_revid(dev) == 0x61)	/*XXX???*/
+		sc->sc_ramsize >>= 1;
+
+	/*
+	 * Arrange the interrupt line.
+	 */
+	rc = request_irq(dev->irq, hifn_intr, IRQF_SHARED, "hifn", sc);
+	if (rc) {
+		device_printf(sc->sc_dev, "could not map interrupt: %d\n", rc);
+		goto fail;
+	}
+	sc->sc_irq = dev->irq;
+
+	hifn_sessions(sc);
+
+	/*
+	 * NB: Keep only the low 16 bits; this masks the chip id
+	 *     from the 7951.
+	 */
+	rev = READ_REG_1(sc, HIFN_1_REVID) & 0xffff;
+
+	rseg = sc->sc_ramsize / 1024;
+	rbase = 'K';
+	if (sc->sc_ramsize >= (1024 * 1024)) {
+		rbase = 'M';
+		rseg /= 1024;
+	}
+	device_printf(sc->sc_dev, "%s, rev %u, %d%cB %cram",
+		hifn_partname(sc), rev,
+		rseg, rbase, sc->sc_drammodel ? 'd' : 's');
+	if (sc->sc_flags & HIFN_IS_7956)
+		printf(", pll=0x%x<%s clk, %ux mult>",
+			sc->sc_pllconfig,
+			sc->sc_pllconfig & HIFN_PLL_REF_SEL ? "ext" : "pci",
+			2 + 2*((sc->sc_pllconfig & HIFN_PLL_ND) >> 11));
+	printf("\n");
+
+	sc->sc_cid = crypto_get_driverid(softc_get_device(sc),CRYPTOCAP_F_HARDWARE);
+	if (sc->sc_cid < 0) {
+		device_printf(sc->sc_dev, "could not get crypto driver id\n");
+		goto fail;
+	}
+
+	WRITE_REG_0(sc, HIFN_0_PUCNFG,
+	    READ_REG_0(sc, HIFN_0_PUCNFG) | HIFN_PUCNFG_CHIPID);
+	ena = READ_REG_0(sc, HIFN_0_PUSTAT) & HIFN_PUSTAT_CHIPENA;
+
+	switch (ena) {
+	case HIFN_PUSTAT_ENA_2:
+		crypto_register(sc->sc_cid, CRYPTO_3DES_CBC, 0, 0);
+		crypto_register(sc->sc_cid, CRYPTO_ARC4, 0, 0);
+		if (sc->sc_flags & HIFN_HAS_AES)
+			crypto_register(sc->sc_cid, CRYPTO_AES_CBC, 0, 0);
+		/*FALLTHROUGH*/
+	case HIFN_PUSTAT_ENA_1:
+		crypto_register(sc->sc_cid, CRYPTO_MD5, 0, 0);
+		crypto_register(sc->sc_cid, CRYPTO_SHA1, 0, 0);
+		crypto_register(sc->sc_cid, CRYPTO_MD5_HMAC, 0, 0);
+		crypto_register(sc->sc_cid, CRYPTO_SHA1_HMAC, 0, 0);
+		crypto_register(sc->sc_cid, CRYPTO_DES_CBC, 0, 0);
+		break;
+	}
+
+	if (sc->sc_flags & (HIFN_HAS_PUBLIC | HIFN_HAS_RNG))
+		hifn_init_pubrng(sc);
+
+	init_timer(&sc->sc_tickto);
+	sc->sc_tickto.function = hifn_tick;
+	sc->sc_tickto.data = (unsigned long) sc->sc_num;
+	mod_timer(&sc->sc_tickto, jiffies + HZ);
+
+	return (0);
+
+fail:
+    if (sc->sc_cid >= 0)
+        crypto_unregister_all(sc->sc_cid);
+    if (sc->sc_irq != -1)
+        free_irq(sc->sc_irq, sc);
+    if (sc->sc_dma) {
+		/* Turn off DMA polling */
+		WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET |
+			HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE);
+
+        pci_free_consistent(sc->sc_pcidev,
+				sizeof(*sc->sc_dma),
+                sc->sc_dma, sc->sc_dma_physaddr);
+	}
+    kfree(sc);
+	return (-ENXIO);
+}
+
+/*
+ * Detach an interface that successfully probed.
+ */
+static void
+hifn_remove(struct pci_dev *dev)
+{
+	struct hifn_softc *sc = pci_get_drvdata(dev);
+	unsigned long l_flags;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	KASSERT(sc != NULL, ("hifn_detach: null software carrier!"));
+
+	/* disable interrupts */
+	HIFN_LOCK(sc);
+	WRITE_REG_1(sc, HIFN_1_DMA_IER, 0);
+	HIFN_UNLOCK(sc);
+
+	/*XXX other resources */
+	del_timer_sync(&sc->sc_tickto);
+
+	/* Turn off DMA polling */
+	WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET |
+	    HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE);
+
+	crypto_unregister_all(sc->sc_cid);
+
+	free_irq(sc->sc_irq, sc);
+
+	pci_free_consistent(sc->sc_pcidev, sizeof(*sc->sc_dma),
+                sc->sc_dma, sc->sc_dma_physaddr);
+}
+
+
+static int
+hifn_init_pubrng(struct hifn_softc *sc)
+{
+	int i;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	if ((sc->sc_flags & HIFN_IS_7811) == 0) {
+		/* Reset 7951 public key/rng engine */
+		WRITE_REG_1(sc, HIFN_1_PUB_RESET,
+		    READ_REG_1(sc, HIFN_1_PUB_RESET) | HIFN_PUBRST_RESET);
+
+		for (i = 0; i < 100; i++) {
+			DELAY(1000);
+			if ((READ_REG_1(sc, HIFN_1_PUB_RESET) &
+			    HIFN_PUBRST_RESET) == 0)
+				break;
+		}
+
+		if (i == 100) {
+			device_printf(sc->sc_dev, "public key init failed\n");
+			return (1);
+		}
+	}
+
+	/* Enable the rng, if available */
+#ifdef CONFIG_OCF_RANDOMHARVEST
+	if (sc->sc_flags & HIFN_HAS_RNG) {
+		if (sc->sc_flags & HIFN_IS_7811) {
+			u_int32_t r;
+			r = READ_REG_1(sc, HIFN_1_7811_RNGENA);
+			if (r & HIFN_7811_RNGENA_ENA) {
+				r &= ~HIFN_7811_RNGENA_ENA;
+				WRITE_REG_1(sc, HIFN_1_7811_RNGENA, r);
+			}
+			WRITE_REG_1(sc, HIFN_1_7811_RNGCFG,
+			    HIFN_7811_RNGCFG_DEFL);
+			r |= HIFN_7811_RNGENA_ENA;
+			WRITE_REG_1(sc, HIFN_1_7811_RNGENA, r);
+		} else
+			WRITE_REG_1(sc, HIFN_1_RNG_CONFIG,
+			    READ_REG_1(sc, HIFN_1_RNG_CONFIG) |
+			    HIFN_RNGCFG_ENA);
+
+		sc->sc_rngfirst = 1;
+		crypto_rregister(sc->sc_cid, hifn_read_random, sc);
+	}
+#endif
+
+	/* Enable public key engine, if available */
+	if (sc->sc_flags & HIFN_HAS_PUBLIC) {
+		WRITE_REG_1(sc, HIFN_1_PUB_IEN, HIFN_PUBIEN_DONE);
+		sc->sc_dmaier |= HIFN_DMAIER_PUBDONE;
+		WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier);
+#ifdef HIFN_VULCANDEV
+		sc->sc_pkdev = make_dev(&vulcanpk_cdevsw, 0, 
+					UID_ROOT, GID_WHEEL, 0666,
+					"vulcanpk");
+		sc->sc_pkdev->si_drv1 = sc;
+#endif
+	}
+
+	return (0);
+}
+
+#ifdef CONFIG_OCF_RANDOMHARVEST
+static int
+hifn_read_random(void *arg, u_int32_t *buf, int len)
+{
+	struct hifn_softc *sc = (struct hifn_softc *) arg;
+	u_int32_t sts;
+	int i, rc = 0;
+
+	if (len <= 0)
+		return rc;
+
+	if (sc->sc_flags & HIFN_IS_7811) {
+		/* ONLY VALID ON 7811!!!! */
+		for (i = 0; i < 5; i++) {
+			sts = READ_REG_1(sc, HIFN_1_7811_RNGSTS);
+			if (sts & HIFN_7811_RNGSTS_UFL) {
+				device_printf(sc->sc_dev,
+					      "RNG underflow: disabling\n");
+				/* DAVIDM perhaps return -1 */
+				break;
+			}
+			if ((sts & HIFN_7811_RNGSTS_RDY) == 0)
+				break;
+
+			/*
+			 * There are at least two words in the RNG FIFO
+			 * at this point.
+			 */
+			if (rc < len)
+				buf[rc++] = READ_REG_1(sc, HIFN_1_7811_RNGDAT);
+			if (rc < len)
+				buf[rc++] = READ_REG_1(sc, HIFN_1_7811_RNGDAT);
+		}
+	} else
+		buf[rc++] = READ_REG_1(sc, HIFN_1_RNG_DATA);
+
+	/* NB: discard first data read */
+	if (sc->sc_rngfirst) {
+		sc->sc_rngfirst = 0;
+		rc = 0;
+	}
+
+	return(rc);
+}
+#endif /* CONFIG_OCF_RANDOMHARVEST */
+
+static void
+hifn_puc_wait(struct hifn_softc *sc)
+{
+	int i;
+	int reg = HIFN_0_PUCTRL;
+
+	if (sc->sc_flags & HIFN_IS_7956) {
+		reg = HIFN_0_PUCTRL2;
+	}
+
+	for (i = 5000; i > 0; i--) {
+		DELAY(1);
+		if (!(READ_REG_0(sc, reg) & HIFN_PUCTRL_RESET))
+			break;
+	}
+	if (!i)
+		device_printf(sc->sc_dev, "proc unit did not reset(0x%x)\n",
+				READ_REG_0(sc, HIFN_0_PUCTRL));
+}
+
+/*
+ * Reset the processing unit.
+ */
+static void
+hifn_reset_puc(struct hifn_softc *sc)
+{
+	/* Reset processing unit */
+	int reg = HIFN_0_PUCTRL;
+
+	if (sc->sc_flags & HIFN_IS_7956) {
+		reg = HIFN_0_PUCTRL2;
+	}
+	WRITE_REG_0(sc, reg, HIFN_PUCTRL_DMAENA);
+
+	hifn_puc_wait(sc);
+}
+
+/*
+ * Set the Retry and TRDY registers; note that we set them to
+ * zero because the 7811 locks up when forced to retry (section
+ * 3.6 of "Specification Update SU-0014-04".  Not clear if we
+ * should do this for all Hifn parts, but it doesn't seem to hurt.
+ */
+static void
+hifn_set_retry(struct hifn_softc *sc)
+{
+	DPRINTF("%s()\n", __FUNCTION__);
+	/* NB: RETRY only responds to 8-bit reads/writes */
+	pci_write_config_byte(sc->sc_pcidev, HIFN_RETRY_TIMEOUT, 0);
+	pci_write_config_dword(sc->sc_pcidev, HIFN_TRDY_TIMEOUT, 0);
+}
+
+/*
+ * Resets the board.  Values in the regesters are left as is
+ * from the reset (i.e. initial values are assigned elsewhere).
+ */
+static void
+hifn_reset_board(struct hifn_softc *sc, int full)
+{
+	u_int32_t reg;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+	/*
+	 * Set polling in the DMA configuration register to zero.  0x7 avoids
+	 * resetting the board and zeros out the other fields.
+	 */
+	WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET |
+	    HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE);
+
+	/*
+	 * Now that polling has been disabled, we have to wait 1 ms
+	 * before resetting the board.
+	 */
+	DELAY(1000);
+
+	/* Reset the DMA unit */
+	if (full) {
+		WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MODE);
+		DELAY(1000);
+	} else {
+		WRITE_REG_1(sc, HIFN_1_DMA_CNFG,
+		    HIFN_DMACNFG_MODE | HIFN_DMACNFG_MSTRESET);
+		hifn_reset_puc(sc);
+	}
+
+	KASSERT(sc->sc_dma != NULL, ("hifn_reset_board: null DMA tag!"));
+	bzero(sc->sc_dma, sizeof(*sc->sc_dma));
+
+	/* Bring dma unit out of reset */
+	WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET |
+	    HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE);
+
+	hifn_puc_wait(sc);
+	hifn_set_retry(sc);
+
+	if (sc->sc_flags & HIFN_IS_7811) {
+		for (reg = 0; reg < 1000; reg++) {
+			if (READ_REG_1(sc, HIFN_1_7811_MIPSRST) &
+			    HIFN_MIPSRST_CRAMINIT)
+				break;
+			DELAY(1000);
+		}
+		if (reg == 1000)
+			device_printf(sc->sc_dev, ": cram init timeout\n");
+	} else {
+	  /* set up DMA configuration register #2 */
+	  /* turn off all PK and BAR0 swaps */
+	  WRITE_REG_1(sc, HIFN_1_DMA_CNFG2,
+		      (3 << HIFN_DMACNFG2_INIT_WRITE_BURST_SHIFT)|
+		      (3 << HIFN_DMACNFG2_INIT_READ_BURST_SHIFT)|
+		      (2 << HIFN_DMACNFG2_TGT_WRITE_BURST_SHIFT)|
+		      (2 << HIFN_DMACNFG2_TGT_READ_BURST_SHIFT));
+	}
+}
+
+static u_int32_t
+hifn_next_signature(u_int32_t a, u_int cnt)
+{
+	int i;
+	u_int32_t v;
+
+	for (i = 0; i < cnt; i++) {
+
+		/* get the parity */
+		v = a & 0x80080125;
+		v ^= v >> 16;
+		v ^= v >> 8;
+		v ^= v >> 4;
+		v ^= v >> 2;
+		v ^= v >> 1;
+
+		a = (v & 1) ^ (a << 1);
+	}
+
+	return a;
+}
+
+
+/*
+ * Checks to see if crypto is already enabled.  If crypto isn't enable,
+ * "hifn_enable_crypto" is called to enable it.  The check is important,
+ * as enabling crypto twice will lock the board.
+ */
+static int 
+hifn_enable_crypto(struct hifn_softc *sc)
+{
+	u_int32_t dmacfg, ramcfg, encl, addr, i;
+	char offtbl[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+					  0x00, 0x00, 0x00, 0x00 };
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	ramcfg = READ_REG_0(sc, HIFN_0_PUCNFG);
+	dmacfg = READ_REG_1(sc, HIFN_1_DMA_CNFG);
+
+	/*
+	 * The RAM config register's encrypt level bit needs to be set before
+	 * every read performed on the encryption level register.
+	 */
+	WRITE_REG_0(sc, HIFN_0_PUCNFG, ramcfg | HIFN_PUCNFG_CHIPID);
+
+	encl = READ_REG_0(sc, HIFN_0_PUSTAT) & HIFN_PUSTAT_CHIPENA;
+
+	/*
+	 * Make sure we don't re-unlock.  Two unlocks kills chip until the
+	 * next reboot.
+	 */
+	if (encl == HIFN_PUSTAT_ENA_1 || encl == HIFN_PUSTAT_ENA_2) {
+#ifdef HIFN_DEBUG
+		if (hifn_debug)
+			device_printf(sc->sc_dev,
+			    "Strong crypto already enabled!\n");
+#endif
+		goto report;
+	}
+
+	if (encl != 0 && encl != HIFN_PUSTAT_ENA_0) {
+#ifdef HIFN_DEBUG
+		if (hifn_debug)
+			device_printf(sc->sc_dev,
+			      "Unknown encryption level 0x%x\n", encl);
+#endif
+		return 1;
+	}
+
+	WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_UNLOCK |
+	    HIFN_DMACNFG_MSTRESET | HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE);
+	DELAY(1000);
+	addr = READ_REG_1(sc, HIFN_UNLOCK_SECRET1);
+	DELAY(1000);
+	WRITE_REG_1(sc, HIFN_UNLOCK_SECRET2, 0);
+	DELAY(1000);
+
+	for (i = 0; i <= 12; i++) {
+		addr = hifn_next_signature(addr, offtbl[i] + 0x101);
+		WRITE_REG_1(sc, HIFN_UNLOCK_SECRET2, addr);
+
+		DELAY(1000);
+	}
+
+	WRITE_REG_0(sc, HIFN_0_PUCNFG, ramcfg | HIFN_PUCNFG_CHIPID);
+	encl = READ_REG_0(sc, HIFN_0_PUSTAT) & HIFN_PUSTAT_CHIPENA;
+
+#ifdef HIFN_DEBUG
+	if (hifn_debug) {
+		if (encl != HIFN_PUSTAT_ENA_1 && encl != HIFN_PUSTAT_ENA_2)
+			device_printf(sc->sc_dev, "Engine is permanently "
+				"locked until next system reset!\n");
+		else
+			device_printf(sc->sc_dev, "Engine enabled "
+				"successfully!\n");
+	}
+#endif
+
+report:
+	WRITE_REG_0(sc, HIFN_0_PUCNFG, ramcfg);
+	WRITE_REG_1(sc, HIFN_1_DMA_CNFG, dmacfg);
+
+	switch (encl) {
+	case HIFN_PUSTAT_ENA_1:
+	case HIFN_PUSTAT_ENA_2:
+		break;
+	case HIFN_PUSTAT_ENA_0:
+	default:
+		device_printf(sc->sc_dev, "disabled\n");
+		break;
+	}
+
+	return 0;
+}
+
+/*
+ * Give initial values to the registers listed in the "Register Space"
+ * section of the HIFN Software Development reference manual.
+ */
+static void 
+hifn_init_pci_registers(struct hifn_softc *sc)
+{
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	/* write fixed values needed by the Initialization registers */
+	WRITE_REG_0(sc, HIFN_0_PUCTRL, HIFN_PUCTRL_DMAENA);
+	WRITE_REG_0(sc, HIFN_0_FIFOCNFG, HIFN_FIFOCNFG_THRESHOLD);
+	WRITE_REG_0(sc, HIFN_0_PUIER, HIFN_PUIER_DSTOVER);
+
+	/* write all 4 ring address registers */
+	WRITE_REG_1(sc, HIFN_1_DMA_CRAR, sc->sc_dma_physaddr +
+	    offsetof(struct hifn_dma, cmdr[0]));
+	WRITE_REG_1(sc, HIFN_1_DMA_SRAR, sc->sc_dma_physaddr +
+	    offsetof(struct hifn_dma, srcr[0]));
+	WRITE_REG_1(sc, HIFN_1_DMA_DRAR, sc->sc_dma_physaddr +
+	    offsetof(struct hifn_dma, dstr[0]));
+	WRITE_REG_1(sc, HIFN_1_DMA_RRAR, sc->sc_dma_physaddr +
+	    offsetof(struct hifn_dma, resr[0]));
+
+	DELAY(2000);
+
+	/* write status register */
+	WRITE_REG_1(sc, HIFN_1_DMA_CSR,
+	    HIFN_DMACSR_D_CTRL_DIS | HIFN_DMACSR_R_CTRL_DIS |
+	    HIFN_DMACSR_S_CTRL_DIS | HIFN_DMACSR_C_CTRL_DIS |
+	    HIFN_DMACSR_D_ABORT | HIFN_DMACSR_D_DONE | HIFN_DMACSR_D_LAST |
+	    HIFN_DMACSR_D_WAIT | HIFN_DMACSR_D_OVER |
+	    HIFN_DMACSR_R_ABORT | HIFN_DMACSR_R_DONE | HIFN_DMACSR_R_LAST |
+	    HIFN_DMACSR_R_WAIT | HIFN_DMACSR_R_OVER |
+	    HIFN_DMACSR_S_ABORT | HIFN_DMACSR_S_DONE | HIFN_DMACSR_S_LAST |
+	    HIFN_DMACSR_S_WAIT |
+	    HIFN_DMACSR_C_ABORT | HIFN_DMACSR_C_DONE | HIFN_DMACSR_C_LAST |
+	    HIFN_DMACSR_C_WAIT |
+	    HIFN_DMACSR_ENGINE |
+	    ((sc->sc_flags & HIFN_HAS_PUBLIC) ?
+		HIFN_DMACSR_PUBDONE : 0) |
+	    ((sc->sc_flags & HIFN_IS_7811) ?
+		HIFN_DMACSR_ILLW | HIFN_DMACSR_ILLR : 0));
+
+	sc->sc_d_busy = sc->sc_r_busy = sc->sc_s_busy = sc->sc_c_busy = 0;
+	sc->sc_dmaier |= HIFN_DMAIER_R_DONE | HIFN_DMAIER_C_ABORT |
+	    HIFN_DMAIER_D_OVER | HIFN_DMAIER_R_OVER |
+	    HIFN_DMAIER_S_ABORT | HIFN_DMAIER_D_ABORT | HIFN_DMAIER_R_ABORT |
+	    ((sc->sc_flags & HIFN_IS_7811) ?
+		HIFN_DMAIER_ILLW | HIFN_DMAIER_ILLR : 0);
+	sc->sc_dmaier &= ~HIFN_DMAIER_C_WAIT;
+	WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier);
+
+
+	if (sc->sc_flags & HIFN_IS_7956) {
+		u_int32_t pll;
+
+		WRITE_REG_0(sc, HIFN_0_PUCNFG, HIFN_PUCNFG_COMPSING |
+		    HIFN_PUCNFG_TCALLPHASES |
+		    HIFN_PUCNFG_TCDRVTOTEM | HIFN_PUCNFG_BUS32);
+
+		/* turn off the clocks and insure bypass is set */
+		pll = READ_REG_1(sc, HIFN_1_PLL);
+		pll = (pll &~ (HIFN_PLL_PK_CLK_SEL | HIFN_PLL_PE_CLK_SEL))
+		  | HIFN_PLL_BP | HIFN_PLL_MBSET;
+		WRITE_REG_1(sc, HIFN_1_PLL, pll);
+		DELAY(10*1000);		/* 10ms */
+
+		/* change configuration */
+		pll = (pll &~ HIFN_PLL_CONFIG) | sc->sc_pllconfig;
+		WRITE_REG_1(sc, HIFN_1_PLL, pll);
+		DELAY(10*1000);		/* 10ms */
+
+		/* disable bypass */
+		pll &= ~HIFN_PLL_BP;
+		WRITE_REG_1(sc, HIFN_1_PLL, pll);
+		/* enable clocks with new configuration */
+		pll |= HIFN_PLL_PK_CLK_SEL | HIFN_PLL_PE_CLK_SEL;
+		WRITE_REG_1(sc, HIFN_1_PLL, pll);
+	} else {
+		WRITE_REG_0(sc, HIFN_0_PUCNFG, HIFN_PUCNFG_COMPSING |
+		    HIFN_PUCNFG_DRFR_128 | HIFN_PUCNFG_TCALLPHASES |
+		    HIFN_PUCNFG_TCDRVTOTEM | HIFN_PUCNFG_BUS32 |
+		    (sc->sc_drammodel ? HIFN_PUCNFG_DRAM : HIFN_PUCNFG_SRAM));
+	}
+
+	WRITE_REG_0(sc, HIFN_0_PUISR, HIFN_PUISR_DSTOVER);
+	WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET |
+	    HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE | HIFN_DMACNFG_LAST |
+	    ((HIFN_POLL_FREQUENCY << 16 ) & HIFN_DMACNFG_POLLFREQ) |
+	    ((HIFN_POLL_SCALAR << 8) & HIFN_DMACNFG_POLLINVAL));
+}
+
+/*
+ * The maximum number of sessions supported by the card
+ * is dependent on the amount of context ram, which
+ * encryption algorithms are enabled, and how compression
+ * is configured.  This should be configured before this
+ * routine is called.
+ */
+static void
+hifn_sessions(struct hifn_softc *sc)
+{
+	u_int32_t pucnfg;
+	int ctxsize;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	pucnfg = READ_REG_0(sc, HIFN_0_PUCNFG);
+
+	if (pucnfg & HIFN_PUCNFG_COMPSING) {
+		if (pucnfg & HIFN_PUCNFG_ENCCNFG)
+			ctxsize = 128;
+		else
+			ctxsize = 512;
+		/*
+		 * 7955/7956 has internal context memory of 32K
+		 */
+		if (sc->sc_flags & HIFN_IS_7956)
+			sc->sc_maxses = 32768 / ctxsize;
+		else
+			sc->sc_maxses = 1 +
+			    ((sc->sc_ramsize - 32768) / ctxsize);
+	} else
+		sc->sc_maxses = sc->sc_ramsize / 16384;
+
+	if (sc->sc_maxses > 2048)
+		sc->sc_maxses = 2048;
+}
+
+/*
+ * Determine ram type (sram or dram).  Board should be just out of a reset
+ * state when this is called.
+ */
+static int
+hifn_ramtype(struct hifn_softc *sc)
+{
+	u_int8_t data[8], dataexpect[8];
+	int i;
+
+	for (i = 0; i < sizeof(data); i++)
+		data[i] = dataexpect[i] = 0x55;
+	if (hifn_writeramaddr(sc, 0, data))
+		return (-1);
+	if (hifn_readramaddr(sc, 0, data))
+		return (-1);
+	if (bcmp(data, dataexpect, sizeof(data)) != 0) {
+		sc->sc_drammodel = 1;
+		return (0);
+	}
+
+	for (i = 0; i < sizeof(data); i++)
+		data[i] = dataexpect[i] = 0xaa;
+	if (hifn_writeramaddr(sc, 0, data))
+		return (-1);
+	if (hifn_readramaddr(sc, 0, data))
+		return (-1);
+	if (bcmp(data, dataexpect, sizeof(data)) != 0) {
+		sc->sc_drammodel = 1;
+		return (0);
+	}
+
+	return (0);
+}
+
+#define	HIFN_SRAM_MAX		(32 << 20)
+#define	HIFN_SRAM_STEP_SIZE	16384
+#define	HIFN_SRAM_GRANULARITY	(HIFN_SRAM_MAX / HIFN_SRAM_STEP_SIZE)
+
+static int
+hifn_sramsize(struct hifn_softc *sc)
+{
+	u_int32_t a;
+	u_int8_t data[8];
+	u_int8_t dataexpect[sizeof(data)];
+	int32_t i;
+
+	for (i = 0; i < sizeof(data); i++)
+		data[i] = dataexpect[i] = i ^ 0x5a;
+
+	for (i = HIFN_SRAM_GRANULARITY - 1; i >= 0; i--) {
+		a = i * HIFN_SRAM_STEP_SIZE;
+		bcopy(&i, data, sizeof(i));
+		hifn_writeramaddr(sc, a, data);
+	}
+
+	for (i = 0; i < HIFN_SRAM_GRANULARITY; i++) {
+		a = i * HIFN_SRAM_STEP_SIZE;
+		bcopy(&i, dataexpect, sizeof(i));
+		if (hifn_readramaddr(sc, a, data) < 0)
+			return (0);
+		if (bcmp(data, dataexpect, sizeof(data)) != 0)
+			return (0);
+		sc->sc_ramsize = a + HIFN_SRAM_STEP_SIZE;
+	}
+
+	return (0);
+}
+
+/*
+ * XXX For dram boards, one should really try all of the
+ * HIFN_PUCNFG_DSZ_*'s.  This just assumes that PUCNFG
+ * is already set up correctly.
+ */
+static int
+hifn_dramsize(struct hifn_softc *sc)
+{
+	u_int32_t cnfg;
+
+	if (sc->sc_flags & HIFN_IS_7956) {
+		/*
+		 * 7955/7956 have a fixed internal ram of only 32K.
+		 */
+		sc->sc_ramsize = 32768;
+	} else {
+		cnfg = READ_REG_0(sc, HIFN_0_PUCNFG) &
+		    HIFN_PUCNFG_DRAMMASK;
+		sc->sc_ramsize = 1 << ((cnfg >> 13) + 18);
+	}
+	return (0);
+}
+
+static void
+hifn_alloc_slot(struct hifn_softc *sc, int *cmdp, int *srcp, int *dstp, int *resp)
+{
+	struct hifn_dma *dma = sc->sc_dma;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	if (dma->cmdi == HIFN_D_CMD_RSIZE) {
+		dma->cmdi = 0;
+		dma->cmdr[HIFN_D_CMD_RSIZE].l = htole32(HIFN_D_JUMP|HIFN_D_MASKDONEIRQ);
+		wmb();
+		dma->cmdr[HIFN_D_CMD_RSIZE].l |= htole32(HIFN_D_VALID);
+		HIFN_CMDR_SYNC(sc, HIFN_D_CMD_RSIZE,
+		    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
+	}
+	*cmdp = dma->cmdi++;
+	dma->cmdk = dma->cmdi;
+
+	if (dma->srci == HIFN_D_SRC_RSIZE) {
+		dma->srci = 0;
+		dma->srcr[HIFN_D_SRC_RSIZE].l = htole32(HIFN_D_JUMP|HIFN_D_MASKDONEIRQ);
+		wmb();
+		dma->srcr[HIFN_D_SRC_RSIZE].l |= htole32(HIFN_D_VALID);
+		HIFN_SRCR_SYNC(sc, HIFN_D_SRC_RSIZE,
+		    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
+	}
+	*srcp = dma->srci++;
+	dma->srck = dma->srci;
+
+	if (dma->dsti == HIFN_D_DST_RSIZE) {
+		dma->dsti = 0;
+		dma->dstr[HIFN_D_DST_RSIZE].l = htole32(HIFN_D_JUMP|HIFN_D_MASKDONEIRQ);
+		wmb();
+		dma->dstr[HIFN_D_DST_RSIZE].l |= htole32(HIFN_D_VALID);
+		HIFN_DSTR_SYNC(sc, HIFN_D_DST_RSIZE,
+		    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
+	}
+	*dstp = dma->dsti++;
+	dma->dstk = dma->dsti;
+
+	if (dma->resi == HIFN_D_RES_RSIZE) {
+		dma->resi = 0;
+		dma->resr[HIFN_D_RES_RSIZE].l = htole32(HIFN_D_JUMP|HIFN_D_MASKDONEIRQ);
+		wmb();
+		dma->resr[HIFN_D_RES_RSIZE].l |= htole32(HIFN_D_VALID);
+		HIFN_RESR_SYNC(sc, HIFN_D_RES_RSIZE,
+		    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
+	}
+	*resp = dma->resi++;
+	dma->resk = dma->resi;
+}
+
+static int
+hifn_writeramaddr(struct hifn_softc *sc, int addr, u_int8_t *data)
+{
+	struct hifn_dma *dma = sc->sc_dma;
+	hifn_base_command_t wc;
+	const u_int32_t masks = HIFN_D_VALID | HIFN_D_LAST | HIFN_D_MASKDONEIRQ;
+	int r, cmdi, resi, srci, dsti;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	wc.masks = htole16(3 << 13);
+	wc.session_num = htole16(addr >> 14);
+	wc.total_source_count = htole16(8);
+	wc.total_dest_count = htole16(addr & 0x3fff);
+
+	hifn_alloc_slot(sc, &cmdi, &srci, &dsti, &resi);
+
+	WRITE_REG_1(sc, HIFN_1_DMA_CSR,
+	    HIFN_DMACSR_C_CTRL_ENA | HIFN_DMACSR_S_CTRL_ENA |
+	    HIFN_DMACSR_D_CTRL_ENA | HIFN_DMACSR_R_CTRL_ENA);
+
+	/* build write command */
+	bzero(dma->command_bufs[cmdi], HIFN_MAX_COMMAND);
+	*(hifn_base_command_t *)dma->command_bufs[cmdi] = wc;
+	bcopy(data, &dma->test_src, sizeof(dma->test_src));
+
+	dma->srcr[srci].p = htole32(sc->sc_dma_physaddr
+	    + offsetof(struct hifn_dma, test_src));
+	dma->dstr[dsti].p = htole32(sc->sc_dma_physaddr
+	    + offsetof(struct hifn_dma, test_dst));
+
+	dma->cmdr[cmdi].l = htole32(16 | masks);
+	dma->srcr[srci].l = htole32(8 | masks);
+	dma->dstr[dsti].l = htole32(4 | masks);
+	dma->resr[resi].l = htole32(4 | masks);
+
+	for (r = 10000; r >= 0; r--) {
+		DELAY(10);
+		if ((dma->resr[resi].l & htole32(HIFN_D_VALID)) == 0)
+			break;
+	}
+	if (r == 0) {
+		device_printf(sc->sc_dev, "writeramaddr -- "
+		    "result[%d](addr %d) still valid\n", resi, addr);
+		r = -1;
+		return (-1);
+	} else
+		r = 0;
+
+	WRITE_REG_1(sc, HIFN_1_DMA_CSR,
+	    HIFN_DMACSR_C_CTRL_DIS | HIFN_DMACSR_S_CTRL_DIS |
+	    HIFN_DMACSR_D_CTRL_DIS | HIFN_DMACSR_R_CTRL_DIS);
+
+	return (r);
+}
+
+static int
+hifn_readramaddr(struct hifn_softc *sc, int addr, u_int8_t *data)
+{
+	struct hifn_dma *dma = sc->sc_dma;
+	hifn_base_command_t rc;
+	const u_int32_t masks = HIFN_D_VALID | HIFN_D_LAST | HIFN_D_MASKDONEIRQ;
+	int r, cmdi, srci, dsti, resi;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	rc.masks = htole16(2 << 13);
+	rc.session_num = htole16(addr >> 14);
+	rc.total_source_count = htole16(addr & 0x3fff);
+	rc.total_dest_count = htole16(8);
+
+	hifn_alloc_slot(sc, &cmdi, &srci, &dsti, &resi);
+
+	WRITE_REG_1(sc, HIFN_1_DMA_CSR,
+	    HIFN_DMACSR_C_CTRL_ENA | HIFN_DMACSR_S_CTRL_ENA |
+	    HIFN_DMACSR_D_CTRL_ENA | HIFN_DMACSR_R_CTRL_ENA);
+
+	bzero(dma->command_bufs[cmdi], HIFN_MAX_COMMAND);
+	*(hifn_base_command_t *)dma->command_bufs[cmdi] = rc;
+
+	dma->srcr[srci].p = htole32(sc->sc_dma_physaddr +
+	    offsetof(struct hifn_dma, test_src));
+	dma->test_src = 0;
+	dma->dstr[dsti].p =  htole32(sc->sc_dma_physaddr +
+	    offsetof(struct hifn_dma, test_dst));
+	dma->test_dst = 0;
+	dma->cmdr[cmdi].l = htole32(8 | masks);
+	dma->srcr[srci].l = htole32(8 | masks);
+	dma->dstr[dsti].l = htole32(8 | masks);
+	dma->resr[resi].l = htole32(HIFN_MAX_RESULT | masks);
+
+	for (r = 10000; r >= 0; r--) {
+		DELAY(10);
+		if ((dma->resr[resi].l & htole32(HIFN_D_VALID)) == 0)
+			break;
+	}
+	if (r == 0) {
+		device_printf(sc->sc_dev, "readramaddr -- "
+		    "result[%d](addr %d) still valid\n", resi, addr);
+		r = -1;
+	} else {
+		r = 0;
+		bcopy(&dma->test_dst, data, sizeof(dma->test_dst));
+	}
+
+	WRITE_REG_1(sc, HIFN_1_DMA_CSR,
+	    HIFN_DMACSR_C_CTRL_DIS | HIFN_DMACSR_S_CTRL_DIS |
+	    HIFN_DMACSR_D_CTRL_DIS | HIFN_DMACSR_R_CTRL_DIS);
+
+	return (r);
+}
+
+/*
+ * Initialize the descriptor rings.
+ */
+static void 
+hifn_init_dma(struct hifn_softc *sc)
+{
+	struct hifn_dma *dma = sc->sc_dma;
+	int i;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	hifn_set_retry(sc);
+
+	/* initialize static pointer values */
+	for (i = 0; i < HIFN_D_CMD_RSIZE; i++)
+		dma->cmdr[i].p = htole32(sc->sc_dma_physaddr +
+		    offsetof(struct hifn_dma, command_bufs[i][0]));
+	for (i = 0; i < HIFN_D_RES_RSIZE; i++)
+		dma->resr[i].p = htole32(sc->sc_dma_physaddr +
+		    offsetof(struct hifn_dma, result_bufs[i][0]));
+
+	dma->cmdr[HIFN_D_CMD_RSIZE].p =
+	    htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, cmdr[0]));
+	dma->srcr[HIFN_D_SRC_RSIZE].p =
+	    htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, srcr[0]));
+	dma->dstr[HIFN_D_DST_RSIZE].p =
+	    htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, dstr[0]));
+	dma->resr[HIFN_D_RES_RSIZE].p =
+	    htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, resr[0]));
+
+	dma->cmdu = dma->srcu = dma->dstu = dma->resu = 0;
+	dma->cmdi = dma->srci = dma->dsti = dma->resi = 0;
+	dma->cmdk = dma->srck = dma->dstk = dma->resk = 0;
+}
+
+/*
+ * Writes out the raw command buffer space.  Returns the
+ * command buffer size.
+ */
+static u_int
+hifn_write_command(struct hifn_command *cmd, u_int8_t *buf)
+{
+	struct hifn_softc *sc = NULL;
+	u_int8_t *buf_pos;
+	hifn_base_command_t *base_cmd;
+	hifn_mac_command_t *mac_cmd;
+	hifn_crypt_command_t *cry_cmd;
+	int using_mac, using_crypt, len, ivlen;
+	u_int32_t dlen, slen;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	buf_pos = buf;
+	using_mac = cmd->base_masks & HIFN_BASE_CMD_MAC;
+	using_crypt = cmd->base_masks & HIFN_BASE_CMD_CRYPT;
+
+	base_cmd = (hifn_base_command_t *)buf_pos;
+	base_cmd->masks = htole16(cmd->base_masks);
+	slen = cmd->src_mapsize;
+	if (cmd->sloplen)
+		dlen = cmd->dst_mapsize - cmd->sloplen + sizeof(u_int32_t);
+	else
+		dlen = cmd->dst_mapsize;
+	base_cmd->total_source_count = htole16(slen & HIFN_BASE_CMD_LENMASK_LO);
+	base_cmd->total_dest_count = htole16(dlen & HIFN_BASE_CMD_LENMASK_LO);
+	dlen >>= 16;
+	slen >>= 16;
+	base_cmd->session_num = htole16(
+	    ((slen << HIFN_BASE_CMD_SRCLEN_S) & HIFN_BASE_CMD_SRCLEN_M) |
+	    ((dlen << HIFN_BASE_CMD_DSTLEN_S) & HIFN_BASE_CMD_DSTLEN_M));
+	buf_pos += sizeof(hifn_base_command_t);
+
+	if (using_mac) {
+		mac_cmd = (hifn_mac_command_t *)buf_pos;
+		dlen = cmd->maccrd->crd_len;
+		mac_cmd->source_count = htole16(dlen & 0xffff);
+		dlen >>= 16;
+		mac_cmd->masks = htole16(cmd->mac_masks |
+		    ((dlen << HIFN_MAC_CMD_SRCLEN_S) & HIFN_MAC_CMD_SRCLEN_M));
+		mac_cmd->header_skip = htole16(cmd->maccrd->crd_skip);
+		mac_cmd->reserved = 0;
+		buf_pos += sizeof(hifn_mac_command_t);
+	}
+
+	if (using_crypt) {
+		cry_cmd = (hifn_crypt_command_t *)buf_pos;
+		dlen = cmd->enccrd->crd_len;
+		cry_cmd->source_count = htole16(dlen & 0xffff);
+		dlen >>= 16;
+		cry_cmd->masks = htole16(cmd->cry_masks |
+		    ((dlen << HIFN_CRYPT_CMD_SRCLEN_S) & HIFN_CRYPT_CMD_SRCLEN_M));
+		cry_cmd->header_skip = htole16(cmd->enccrd->crd_skip);
+		cry_cmd->reserved = 0;
+		buf_pos += sizeof(hifn_crypt_command_t);
+	}
+
+	if (using_mac && cmd->mac_masks & HIFN_MAC_CMD_NEW_KEY) {
+		bcopy(cmd->mac, buf_pos, HIFN_MAC_KEY_LENGTH);
+		buf_pos += HIFN_MAC_KEY_LENGTH;
+	}
+
+	if (using_crypt && cmd->cry_masks & HIFN_CRYPT_CMD_NEW_KEY) {
+		switch (cmd->cry_masks & HIFN_CRYPT_CMD_ALG_MASK) {
+		case HIFN_CRYPT_CMD_ALG_3DES:
+			bcopy(cmd->ck, buf_pos, HIFN_3DES_KEY_LENGTH);
+			buf_pos += HIFN_3DES_KEY_LENGTH;
+			break;
+		case HIFN_CRYPT_CMD_ALG_DES:
+			bcopy(cmd->ck, buf_pos, HIFN_DES_KEY_LENGTH);
+			buf_pos += HIFN_DES_KEY_LENGTH;
+			break;
+		case HIFN_CRYPT_CMD_ALG_RC4:
+			len = 256;
+			do {
+				int clen;
+
+				clen = MIN(cmd->cklen, len);
+				bcopy(cmd->ck, buf_pos, clen);
+				len -= clen;
+				buf_pos += clen;
+			} while (len > 0);
+			bzero(buf_pos, 4);
+			buf_pos += 4;
+			break;
+		case HIFN_CRYPT_CMD_ALG_AES:
+			/*
+			 * AES keys are variable 128, 192 and
+			 * 256 bits (16, 24 and 32 bytes).
+			 */
+			bcopy(cmd->ck, buf_pos, cmd->cklen);
+			buf_pos += cmd->cklen;
+			break;
+		}
+	}
+
+	if (using_crypt && cmd->cry_masks & HIFN_CRYPT_CMD_NEW_IV) {
+		switch (cmd->cry_masks & HIFN_CRYPT_CMD_ALG_MASK) {
+		case HIFN_CRYPT_CMD_ALG_AES:
+			ivlen = HIFN_AES_IV_LENGTH;
+			break;
+		default:
+			ivlen = HIFN_IV_LENGTH;
+			break;
+		}
+		bcopy(cmd->iv, buf_pos, ivlen);
+		buf_pos += ivlen;
+	}
+
+	if ((cmd->base_masks & (HIFN_BASE_CMD_MAC|HIFN_BASE_CMD_CRYPT)) == 0) {
+		bzero(buf_pos, 8);
+		buf_pos += 8;
+	}
+
+	return (buf_pos - buf);
+}
+
+static int
+hifn_dmamap_aligned(struct hifn_operand *op)
+{
+	struct hifn_softc *sc = NULL;
+	int i;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	for (i = 0; i < op->nsegs; i++) {
+		if (op->segs[i].ds_addr & 3)
+			return (0);
+		if ((i != (op->nsegs - 1)) && (op->segs[i].ds_len & 3))
+			return (0);
+	}
+	return (1);
+}
+
+static __inline int
+hifn_dmamap_dstwrap(struct hifn_softc *sc, int idx)
+{
+	struct hifn_dma *dma = sc->sc_dma;
+
+	if (++idx == HIFN_D_DST_RSIZE) {
+		dma->dstr[idx].l = htole32(HIFN_D_VALID | HIFN_D_JUMP |
+		    HIFN_D_MASKDONEIRQ);
+		HIFN_DSTR_SYNC(sc, idx,
+		    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
+		idx = 0;
+	}
+	return (idx);
+}
+
+static int
+hifn_dmamap_load_dst(struct hifn_softc *sc, struct hifn_command *cmd)
+{
+	struct hifn_dma *dma = sc->sc_dma;
+	struct hifn_operand *dst = &cmd->dst;
+	u_int32_t p, l;
+	int idx, used = 0, i;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	idx = dma->dsti;
+	for (i = 0; i < dst->nsegs - 1; i++) {
+		dma->dstr[idx].p = htole32(dst->segs[i].ds_addr);
+		dma->dstr[idx].l = htole32(HIFN_D_MASKDONEIRQ | dst->segs[i].ds_len);
+		wmb();
+		dma->dstr[idx].l |= htole32(HIFN_D_VALID);
+		HIFN_DSTR_SYNC(sc, idx,
+		    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
+		used++;
+
+		idx = hifn_dmamap_dstwrap(sc, idx);
+	}
+
+	if (cmd->sloplen == 0) {
+		p = dst->segs[i].ds_addr;
+		l = HIFN_D_MASKDONEIRQ | HIFN_D_LAST |
+		    dst->segs[i].ds_len;
+	} else {
+		p = sc->sc_dma_physaddr +
+		    offsetof(struct hifn_dma, slop[cmd->slopidx]);
+		l = HIFN_D_MASKDONEIRQ | HIFN_D_LAST |
+		    sizeof(u_int32_t);
+
+		if ((dst->segs[i].ds_len - cmd->sloplen) != 0) {
+			dma->dstr[idx].p = htole32(dst->segs[i].ds_addr);
+			dma->dstr[idx].l = htole32(HIFN_D_MASKDONEIRQ |
+			    (dst->segs[i].ds_len - cmd->sloplen));
+			wmb();
+			dma->dstr[idx].l |= htole32(HIFN_D_VALID);
+			HIFN_DSTR_SYNC(sc, idx,
+			    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
+			used++;
+
+			idx = hifn_dmamap_dstwrap(sc, idx);
+		}
+	}
+	dma->dstr[idx].p = htole32(p);
+	dma->dstr[idx].l = htole32(l);
+	wmb();
+	dma->dstr[idx].l |= htole32(HIFN_D_VALID);
+	HIFN_DSTR_SYNC(sc, idx, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
+	used++;
+
+	idx = hifn_dmamap_dstwrap(sc, idx);
+
+	dma->dsti = idx;
+	dma->dstu += used;
+	return (idx);
+}
+
+static __inline int
+hifn_dmamap_srcwrap(struct hifn_softc *sc, int idx)
+{
+	struct hifn_dma *dma = sc->sc_dma;
+
+	if (++idx == HIFN_D_SRC_RSIZE) {
+		dma->srcr[idx].l = htole32(HIFN_D_VALID |
+		    HIFN_D_JUMP | HIFN_D_MASKDONEIRQ);
+		HIFN_SRCR_SYNC(sc, HIFN_D_SRC_RSIZE,
+		    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
+		idx = 0;
+	}
+	return (idx);
+}
+
+static int
+hifn_dmamap_load_src(struct hifn_softc *sc, struct hifn_command *cmd)
+{
+	struct hifn_dma *dma = sc->sc_dma;
+	struct hifn_operand *src = &cmd->src;
+	int idx, i;
+	u_int32_t last = 0;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	idx = dma->srci;
+	for (i = 0; i < src->nsegs; i++) {
+		if (i == src->nsegs - 1)
+			last = HIFN_D_LAST;
+
+		dma->srcr[idx].p = htole32(src->segs[i].ds_addr);
+		dma->srcr[idx].l = htole32(src->segs[i].ds_len |
+		    HIFN_D_MASKDONEIRQ | last);
+		wmb();
+		dma->srcr[idx].l |= htole32(HIFN_D_VALID);
+		HIFN_SRCR_SYNC(sc, idx,
+		    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
+
+		idx = hifn_dmamap_srcwrap(sc, idx);
+	}
+	dma->srci = idx;
+	dma->srcu += src->nsegs;
+	return (idx);
+} 
+
+
+static int 
+hifn_crypto(
+	struct hifn_softc *sc,
+	struct hifn_command *cmd,
+	struct cryptop *crp,
+	int hint)
+{
+	struct	hifn_dma *dma = sc->sc_dma;
+	u_int32_t cmdlen, csr;
+	int cmdi, resi, err = 0;
+	unsigned long l_flags;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	/*
+	 * need 1 cmd, and 1 res
+	 *
+	 * NB: check this first since it's easy.
+	 */
+	HIFN_LOCK(sc);
+	if ((dma->cmdu + 1) > HIFN_D_CMD_RSIZE ||
+	    (dma->resu + 1) > HIFN_D_RES_RSIZE) {
+#ifdef HIFN_DEBUG
+		if (hifn_debug) {
+			device_printf(sc->sc_dev,
+				"cmd/result exhaustion, cmdu %u resu %u\n",
+				dma->cmdu, dma->resu);
+		}
+#endif
+		hifnstats.hst_nomem_cr++;
+		sc->sc_needwakeup |= CRYPTO_SYMQ;
+		HIFN_UNLOCK(sc);
+		return (ERESTART);
+	}
+
+	if (crp->crp_flags & CRYPTO_F_SKBUF) {
+		if (pci_map_skb(sc, &cmd->src, cmd->src_skb)) {
+			hifnstats.hst_nomem_load++;
+			err = ENOMEM;
+			goto err_srcmap1;
+		}
+	} else if (crp->crp_flags & CRYPTO_F_IOV) {
+		if (pci_map_uio(sc, &cmd->src, cmd->src_io)) {
+			hifnstats.hst_nomem_load++;
+			err = ENOMEM;
+			goto err_srcmap1;
+		}
+	} else {
+		if (pci_map_buf(sc, &cmd->src, cmd->src_buf, crp->crp_ilen)) {
+			hifnstats.hst_nomem_load++;
+			err = ENOMEM;
+			goto err_srcmap1;
+		}
+	}
+
+	if (hifn_dmamap_aligned(&cmd->src)) {
+		cmd->sloplen = cmd->src_mapsize & 3;
+		cmd->dst = cmd->src;
+	} else {
+		if (crp->crp_flags & CRYPTO_F_IOV) {
+			DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
+			err = EINVAL;
+			goto err_srcmap;
+		} else if (crp->crp_flags & CRYPTO_F_SKBUF) {
+#ifdef NOTYET
+			int totlen, len;
+			struct mbuf *m, *m0, *mlast;
+
+			KASSERT(cmd->dst_m == cmd->src_m,
+				("hifn_crypto: dst_m initialized improperly"));
+			hifnstats.hst_unaligned++;
+			/*
+			 * Source is not aligned on a longword boundary.
+			 * Copy the data to insure alignment.  If we fail
+			 * to allocate mbufs or clusters while doing this
+			 * we return ERESTART so the operation is requeued
+			 * at the crypto later, but only if there are
+			 * ops already posted to the hardware; otherwise we
+			 * have no guarantee that we'll be re-entered.
+			 */
+			totlen = cmd->src_mapsize;
+			if (cmd->src_m->m_flags & M_PKTHDR) {
+				len = MHLEN;
+				MGETHDR(m0, M_DONTWAIT, MT_DATA);
+				if (m0 && !m_dup_pkthdr(m0, cmd->src_m, M_DONTWAIT)) {
+					m_free(m0);
+					m0 = NULL;
+				}
+			} else {
+				len = MLEN;
+				MGET(m0, M_DONTWAIT, MT_DATA);
+			}
+			if (m0 == NULL) {
+				hifnstats.hst_nomem_mbuf++;
+				err = dma->cmdu ? ERESTART : ENOMEM;
+				goto err_srcmap;
+			}
+			if (totlen >= MINCLSIZE) {
+				MCLGET(m0, M_DONTWAIT);
+				if ((m0->m_flags & M_EXT) == 0) {
+					hifnstats.hst_nomem_mcl++;
+					err = dma->cmdu ? ERESTART : ENOMEM;
+					m_freem(m0);
+					goto err_srcmap;
+				}
+				len = MCLBYTES;
+			}
+			totlen -= len;
+			m0->m_pkthdr.len = m0->m_len = len;
+			mlast = m0;
+
+			while (totlen > 0) {
+				MGET(m, M_DONTWAIT, MT_DATA);
+				if (m == NULL) {
+					hifnstats.hst_nomem_mbuf++;
+					err = dma->cmdu ? ERESTART : ENOMEM;
+					m_freem(m0);
+					goto err_srcmap;
+				}
+				len = MLEN;
+				if (totlen >= MINCLSIZE) {
+					MCLGET(m, M_DONTWAIT);
+					if ((m->m_flags & M_EXT) == 0) {
+						hifnstats.hst_nomem_mcl++;
+						err = dma->cmdu ? ERESTART : ENOMEM;
+						mlast->m_next = m;
+						m_freem(m0);
+						goto err_srcmap;
+					}
+					len = MCLBYTES;
+				}
+
+				m->m_len = len;
+				m0->m_pkthdr.len += len;
+				totlen -= len;
+
+				mlast->m_next = m;
+				mlast = m;
+			}
+			cmd->dst_m = m0;
+#else
+			device_printf(sc->sc_dev,
+					"%s,%d: CRYPTO_F_SKBUF unaligned not implemented\n",
+					__FILE__, __LINE__);
+			err = EINVAL;
+			goto err_srcmap;
+#endif
+		} else {
+			device_printf(sc->sc_dev,
+					"%s,%d: unaligned contig buffers not implemented\n",
+					__FILE__, __LINE__);
+			err = EINVAL;
+			goto err_srcmap;
+		}
+	}
+
+	if (cmd->dst_map == NULL) {
+		if (crp->crp_flags & CRYPTO_F_SKBUF) {
+			if (pci_map_skb(sc, &cmd->dst, cmd->dst_skb)) {
+				hifnstats.hst_nomem_map++;
+				err = ENOMEM;
+				goto err_dstmap1;
+			}
+		} else if (crp->crp_flags & CRYPTO_F_IOV) {
+			if (pci_map_uio(sc, &cmd->dst, cmd->dst_io)) {
+				hifnstats.hst_nomem_load++;
+				err = ENOMEM;
+				goto err_dstmap1;
+			}
+		} else {
+			if (pci_map_buf(sc, &cmd->dst, cmd->dst_buf, crp->crp_ilen)) {
+				hifnstats.hst_nomem_load++;
+				err = ENOMEM;
+				goto err_dstmap1;
+			}
+		}
+	}
+
+#ifdef HIFN_DEBUG
+	if (hifn_debug) {
+		device_printf(sc->sc_dev,
+		    "Entering cmd: stat %8x ien %8x u %d/%d/%d/%d n %d/%d\n",
+		    READ_REG_1(sc, HIFN_1_DMA_CSR),
+		    READ_REG_1(sc, HIFN_1_DMA_IER),
+		    dma->cmdu, dma->srcu, dma->dstu, dma->resu,
+		    cmd->src_nsegs, cmd->dst_nsegs);
+	}
+#endif
+
+#if 0
+	if (cmd->src_map == cmd->dst_map) {
+		bus_dmamap_sync(sc->sc_dmat, cmd->src_map,
+		    BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD);
+	} else {
+		bus_dmamap_sync(sc->sc_dmat, cmd->src_map,
+		    BUS_DMASYNC_PREWRITE);
+		bus_dmamap_sync(sc->sc_dmat, cmd->dst_map,
+		    BUS_DMASYNC_PREREAD);
+	}
+#endif
+
+	/*
+	 * need N src, and N dst
+	 */
+	if ((dma->srcu + cmd->src_nsegs) > HIFN_D_SRC_RSIZE ||
+	    (dma->dstu + cmd->dst_nsegs + 1) > HIFN_D_DST_RSIZE) {
+#ifdef HIFN_DEBUG
+		if (hifn_debug) {
+			device_printf(sc->sc_dev,
+				"src/dst exhaustion, srcu %u+%u dstu %u+%u\n",
+				dma->srcu, cmd->src_nsegs,
+				dma->dstu, cmd->dst_nsegs);
+		}
+#endif
+		hifnstats.hst_nomem_sd++;
+		err = ERESTART;
+		goto err_dstmap;
+	}
+
+	if (dma->cmdi == HIFN_D_CMD_RSIZE) {
+		dma->cmdi = 0;
+		dma->cmdr[HIFN_D_CMD_RSIZE].l = htole32(HIFN_D_JUMP|HIFN_D_MASKDONEIRQ);
+		wmb();
+		dma->cmdr[HIFN_D_CMD_RSIZE].l |= htole32(HIFN_D_VALID);
+		HIFN_CMDR_SYNC(sc, HIFN_D_CMD_RSIZE,
+		    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
+	}
+	cmdi = dma->cmdi++;
+	cmdlen = hifn_write_command(cmd, dma->command_bufs[cmdi]);
+	HIFN_CMD_SYNC(sc, cmdi, BUS_DMASYNC_PREWRITE);
+
+	/* .p for command/result already set */
+	dma->cmdr[cmdi].l = htole32(cmdlen | HIFN_D_LAST |
+	    HIFN_D_MASKDONEIRQ);
+	wmb();
+	dma->cmdr[cmdi].l |= htole32(HIFN_D_VALID);
+	HIFN_CMDR_SYNC(sc, cmdi,
+	    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
+	dma->cmdu++;
+
+	/*
+	 * We don't worry about missing an interrupt (which a "command wait"
+	 * interrupt salvages us from), unless there is more than one command
+	 * in the queue.
+	 */
+	if (dma->cmdu > 1) {
+		sc->sc_dmaier |= HIFN_DMAIER_C_WAIT;
+		WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier);
+	}
+
+	hifnstats.hst_ipackets++;
+	hifnstats.hst_ibytes += cmd->src_mapsize;
+
+	hifn_dmamap_load_src(sc, cmd);
+
+	/*
+	 * Unlike other descriptors, we don't mask done interrupt from
+	 * result descriptor.
+	 */
+#ifdef HIFN_DEBUG
+	if (hifn_debug)
+		device_printf(sc->sc_dev, "load res\n");
+#endif
+	if (dma->resi == HIFN_D_RES_RSIZE) {
+		dma->resi = 0;
+		dma->resr[HIFN_D_RES_RSIZE].l = htole32(HIFN_D_JUMP|HIFN_D_MASKDONEIRQ);
+		wmb();
+		dma->resr[HIFN_D_RES_RSIZE].l |= htole32(HIFN_D_VALID);
+		HIFN_RESR_SYNC(sc, HIFN_D_RES_RSIZE,
+		    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
+	}
+	resi = dma->resi++;
+	KASSERT(dma->hifn_commands[resi] == NULL,
+		("hifn_crypto: command slot %u busy", resi));
+	dma->hifn_commands[resi] = cmd;
+	HIFN_RES_SYNC(sc, resi, BUS_DMASYNC_PREREAD);
+	if ((hint & CRYPTO_HINT_MORE) && sc->sc_curbatch < hifn_maxbatch) {
+		dma->resr[resi].l = htole32(HIFN_MAX_RESULT |
+		    HIFN_D_LAST | HIFN_D_MASKDONEIRQ);
+		wmb();
+		dma->resr[resi].l |= htole32(HIFN_D_VALID);
+		sc->sc_curbatch++;
+		if (sc->sc_curbatch > hifnstats.hst_maxbatch)
+			hifnstats.hst_maxbatch = sc->sc_curbatch;
+		hifnstats.hst_totbatch++;
+	} else {
+		dma->resr[resi].l = htole32(HIFN_MAX_RESULT | HIFN_D_LAST);
+		wmb();
+		dma->resr[resi].l |= htole32(HIFN_D_VALID);
+		sc->sc_curbatch = 0;
+	}
+	HIFN_RESR_SYNC(sc, resi,
+	    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
+	dma->resu++;
+
+	if (cmd->sloplen)
+		cmd->slopidx = resi;
+
+	hifn_dmamap_load_dst(sc, cmd);
+
+	csr = 0;
+	if (sc->sc_c_busy == 0) {
+		csr |= HIFN_DMACSR_C_CTRL_ENA;
+		sc->sc_c_busy = 1;
+	}
+	if (sc->sc_s_busy == 0) {
+		csr |= HIFN_DMACSR_S_CTRL_ENA;
+		sc->sc_s_busy = 1;
+	}
+	if (sc->sc_r_busy == 0) {
+		csr |= HIFN_DMACSR_R_CTRL_ENA;
+		sc->sc_r_busy = 1;
+	}
+	if (sc->sc_d_busy == 0) {
+		csr |= HIFN_DMACSR_D_CTRL_ENA;
+		sc->sc_d_busy = 1;
+	}
+	if (csr)
+		WRITE_REG_1(sc, HIFN_1_DMA_CSR, csr);
+
+#ifdef HIFN_DEBUG
+	if (hifn_debug) {
+		device_printf(sc->sc_dev, "command: stat %8x ier %8x\n",
+		    READ_REG_1(sc, HIFN_1_DMA_CSR),
+		    READ_REG_1(sc, HIFN_1_DMA_IER));
+	}
+#endif
+
+	sc->sc_active = 5;
+	HIFN_UNLOCK(sc);
+	KASSERT(err == 0, ("hifn_crypto: success with error %u", err));
+	return (err);		/* success */
+
+err_dstmap:
+	if (cmd->src_map != cmd->dst_map)
+		pci_unmap_buf(sc, &cmd->dst);
+err_dstmap1:
+err_srcmap:
+	if (crp->crp_flags & CRYPTO_F_SKBUF) {
+		if (cmd->src_skb != cmd->dst_skb)
+#ifdef NOTYET
+			m_freem(cmd->dst_m);
+#else
+			device_printf(sc->sc_dev,
+					"%s,%d: CRYPTO_F_SKBUF src != dst not implemented\n",
+					__FILE__, __LINE__);
+#endif
+	}
+	pci_unmap_buf(sc, &cmd->src);
+err_srcmap1:
+	HIFN_UNLOCK(sc);
+	return (err);
+}
+
+static void
+hifn_tick(unsigned long arg)
+{
+	struct hifn_softc *sc;
+	unsigned long l_flags;
+
+	if (arg >= HIFN_MAX_CHIPS)
+		return;
+	sc = hifn_chip_idx[arg];
+	if (!sc)
+		return;
+
+	HIFN_LOCK(sc);
+	if (sc->sc_active == 0) {
+		struct hifn_dma *dma = sc->sc_dma;
+		u_int32_t r = 0;
+
+		if (dma->cmdu == 0 && sc->sc_c_busy) {
+			sc->sc_c_busy = 0;
+			r |= HIFN_DMACSR_C_CTRL_DIS;
+		}
+		if (dma->srcu == 0 && sc->sc_s_busy) {
+			sc->sc_s_busy = 0;
+			r |= HIFN_DMACSR_S_CTRL_DIS;
+		}
+		if (dma->dstu == 0 && sc->sc_d_busy) {
+			sc->sc_d_busy = 0;
+			r |= HIFN_DMACSR_D_CTRL_DIS;
+		}
+		if (dma->resu == 0 && sc->sc_r_busy) {
+			sc->sc_r_busy = 0;
+			r |= HIFN_DMACSR_R_CTRL_DIS;
+		}
+		if (r)
+			WRITE_REG_1(sc, HIFN_1_DMA_CSR, r);
+	} else
+		sc->sc_active--;
+	HIFN_UNLOCK(sc);
+	mod_timer(&sc->sc_tickto, jiffies + HZ);
+}
+
+static irqreturn_t
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19)
+hifn_intr(int irq, void *arg)
+#else
+hifn_intr(int irq, void *arg, struct pt_regs *regs)
+#endif
+{
+	struct hifn_softc *sc = arg;
+	struct hifn_dma *dma;
+	u_int32_t dmacsr, restart;
+	int i, u;
+	unsigned long l_flags;
+
+	dmacsr = READ_REG_1(sc, HIFN_1_DMA_CSR);
+
+	/* Nothing in the DMA unit interrupted */
+	if ((dmacsr & sc->sc_dmaier) == 0)
+		return IRQ_NONE;
+
+	HIFN_LOCK(sc);
+
+	dma = sc->sc_dma;
+
+#ifdef HIFN_DEBUG
+	if (hifn_debug) {
+		device_printf(sc->sc_dev,
+		    "irq: stat %08x ien %08x damier %08x i %d/%d/%d/%d k %d/%d/%d/%d u %d/%d/%d/%d\n",
+		    dmacsr, READ_REG_1(sc, HIFN_1_DMA_IER), sc->sc_dmaier,
+		    dma->cmdi, dma->srci, dma->dsti, dma->resi,
+		    dma->cmdk, dma->srck, dma->dstk, dma->resk,
+		    dma->cmdu, dma->srcu, dma->dstu, dma->resu);
+	}
+#endif
+
+	WRITE_REG_1(sc, HIFN_1_DMA_CSR, dmacsr & sc->sc_dmaier);
+
+	if ((sc->sc_flags & HIFN_HAS_PUBLIC) &&
+	    (dmacsr & HIFN_DMACSR_PUBDONE))
+		WRITE_REG_1(sc, HIFN_1_PUB_STATUS,
+		    READ_REG_1(sc, HIFN_1_PUB_STATUS) | HIFN_PUBSTS_DONE);
+
+	restart = dmacsr & (HIFN_DMACSR_D_OVER | HIFN_DMACSR_R_OVER);
+	if (restart)
+		device_printf(sc->sc_dev, "overrun %x\n", dmacsr);
+
+	if (sc->sc_flags & HIFN_IS_7811) {
+		if (dmacsr & HIFN_DMACSR_ILLR)
+			device_printf(sc->sc_dev, "illegal read\n");
+		if (dmacsr & HIFN_DMACSR_ILLW)
+			device_printf(sc->sc_dev, "illegal write\n");
+	}
+
+	restart = dmacsr & (HIFN_DMACSR_C_ABORT | HIFN_DMACSR_S_ABORT |
+	    HIFN_DMACSR_D_ABORT | HIFN_DMACSR_R_ABORT);
+	if (restart) {
+		device_printf(sc->sc_dev, "abort, resetting.\n");
+		hifnstats.hst_abort++;
+		hifn_abort(sc);
+		HIFN_UNLOCK(sc);
+		return IRQ_HANDLED;
+	}
+
+	if ((dmacsr & HIFN_DMACSR_C_WAIT) && (dma->cmdu == 0)) {
+		/*
+		 * If no slots to process and we receive a "waiting on
+		 * command" interrupt, we disable the "waiting on command"
+		 * (by clearing it).
+		 */
+		sc->sc_dmaier &= ~HIFN_DMAIER_C_WAIT;
+		WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier);
+	}
+
+	/* clear the rings */
+	i = dma->resk; u = dma->resu;
+	while (u != 0) {
+		HIFN_RESR_SYNC(sc, i,
+		    BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
+		if (dma->resr[i].l & htole32(HIFN_D_VALID)) {
+			HIFN_RESR_SYNC(sc, i,
+			    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
+			break;
+		}
+
+		if (i != HIFN_D_RES_RSIZE) {
+			struct hifn_command *cmd;
+			u_int8_t *macbuf = NULL;
+
+			HIFN_RES_SYNC(sc, i, BUS_DMASYNC_POSTREAD);
+			cmd = dma->hifn_commands[i];
+			KASSERT(cmd != NULL,
+				("hifn_intr: null command slot %u", i));
+			dma->hifn_commands[i] = NULL;
+
+			if (cmd->base_masks & HIFN_BASE_CMD_MAC) {
+				macbuf = dma->result_bufs[i];
+				macbuf += 12;
+			}
+
+			hifn_callback(sc, cmd, macbuf);
+			hifnstats.hst_opackets++;
+			u--;
+		}
+
+		if (++i == (HIFN_D_RES_RSIZE + 1))
+			i = 0;
+	}
+	dma->resk = i; dma->resu = u;
+
+	i = dma->srck; u = dma->srcu;
+	while (u != 0) {
+		if (i == HIFN_D_SRC_RSIZE)
+			i = 0;
+		HIFN_SRCR_SYNC(sc, i,
+		    BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
+		if (dma->srcr[i].l & htole32(HIFN_D_VALID)) {
+			HIFN_SRCR_SYNC(sc, i,
+			    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
+			break;
+		}
+		i++, u--;
+	}
+	dma->srck = i; dma->srcu = u;
+
+	i = dma->cmdk; u = dma->cmdu;
+	while (u != 0) {
+		HIFN_CMDR_SYNC(sc, i,
+		    BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
+		if (dma->cmdr[i].l & htole32(HIFN_D_VALID)) {
+			HIFN_CMDR_SYNC(sc, i,
+			    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
+			break;
+		}
+		if (i != HIFN_D_CMD_RSIZE) {
+			u--;
+			HIFN_CMD_SYNC(sc, i, BUS_DMASYNC_POSTWRITE);
+		}
+		if (++i == (HIFN_D_CMD_RSIZE + 1))
+			i = 0;
+	}
+	dma->cmdk = i; dma->cmdu = u;
+
+	HIFN_UNLOCK(sc);
+
+	if (sc->sc_needwakeup) {		/* XXX check high watermark */
+		int wakeup = sc->sc_needwakeup & (CRYPTO_SYMQ|CRYPTO_ASYMQ);
+#ifdef HIFN_DEBUG
+		if (hifn_debug)
+			device_printf(sc->sc_dev,
+				"wakeup crypto (%x) u %d/%d/%d/%d\n",
+				sc->sc_needwakeup,
+				dma->cmdu, dma->srcu, dma->dstu, dma->resu);
+#endif
+		sc->sc_needwakeup &= ~wakeup;
+		crypto_unblock(sc->sc_cid, wakeup);
+	}
+
+	return IRQ_HANDLED;
+}
+
+/*
+ * Allocate a new 'session' and return an encoded session id.  'sidp'
+ * contains our registration id, and should contain an encoded session
+ * id on successful allocation.
+ */
+static int
+hifn_newsession(device_t dev, u_int32_t *sidp, struct cryptoini *cri)
+{
+	struct hifn_softc *sc = device_get_softc(dev);
+	struct cryptoini *c;
+	int mac = 0, cry = 0, sesn;
+	struct hifn_session *ses = NULL;
+	unsigned long l_flags;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	KASSERT(sc != NULL, ("hifn_newsession: null softc"));
+	if (sidp == NULL || cri == NULL || sc == NULL) {
+		DPRINTF("%s,%d: %s - EINVAL\n", __FILE__, __LINE__, __FUNCTION__);
+		return (EINVAL);
+	}
+
+	HIFN_LOCK(sc);
+	if (sc->sc_sessions == NULL) {
+		ses = sc->sc_sessions = (struct hifn_session *)kmalloc(sizeof(*ses),
+				SLAB_ATOMIC);
+		if (ses == NULL) {
+			HIFN_UNLOCK(sc);
+			return (ENOMEM);
+		}
+		sesn = 0;
+		sc->sc_nsessions = 1;
+	} else {
+		for (sesn = 0; sesn < sc->sc_nsessions; sesn++) {
+			if (!sc->sc_sessions[sesn].hs_used) {
+				ses = &sc->sc_sessions[sesn];
+				break;
+			}
+		}
+
+		if (ses == NULL) {
+			sesn = sc->sc_nsessions;
+			ses = (struct hifn_session *)kmalloc((sesn + 1) * sizeof(*ses),
+					SLAB_ATOMIC);
+			if (ses == NULL) {
+				HIFN_UNLOCK(sc);
+				return (ENOMEM);
+			}
+			bcopy(sc->sc_sessions, ses, sesn * sizeof(*ses));
+			bzero(sc->sc_sessions, sesn * sizeof(*ses));
+			kfree(sc->sc_sessions);
+			sc->sc_sessions = ses;
+			ses = &sc->sc_sessions[sesn];
+			sc->sc_nsessions++;
+		}
+	}
+	HIFN_UNLOCK(sc);
+
+	bzero(ses, sizeof(*ses));
+	ses->hs_used = 1;
+
+	for (c = cri; c != NULL; c = c->cri_next) {
+		switch (c->cri_alg) {
+		case CRYPTO_MD5:
+		case CRYPTO_SHA1:
+		case CRYPTO_MD5_HMAC:
+		case CRYPTO_SHA1_HMAC:
+			if (mac) {
+				DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
+				return (EINVAL);
+			}
+			mac = 1;
+			ses->hs_mlen = c->cri_mlen;
+			if (ses->hs_mlen == 0) {
+				switch (c->cri_alg) {
+				case CRYPTO_MD5:
+				case CRYPTO_MD5_HMAC:
+					ses->hs_mlen = 16;
+					break;
+				case CRYPTO_SHA1:
+				case CRYPTO_SHA1_HMAC:
+					ses->hs_mlen = 20;
+					break;
+				}
+			}
+			break;
+		case CRYPTO_DES_CBC:
+		case CRYPTO_3DES_CBC:
+		case CRYPTO_AES_CBC:
+			/* XXX this may read fewer, does it matter? */
+			read_random(ses->hs_iv,
+				c->cri_alg == CRYPTO_AES_CBC ?
+					HIFN_AES_IV_LENGTH : HIFN_IV_LENGTH);
+			/*FALLTHROUGH*/
+		case CRYPTO_ARC4:
+			if (cry) {
+				DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
+				return (EINVAL);
+			}
+			cry = 1;
+			break;
+		default:
+			DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
+			return (EINVAL);
+		}
+	}
+	if (mac == 0 && cry == 0) {
+		DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
+		return (EINVAL);
+	}
+
+	*sidp = HIFN_SID(device_get_unit(sc->sc_dev), sesn);
+
+	return (0);
+}
+
+/*
+ * Deallocate a session.
+ * XXX this routine should run a zero'd mac/encrypt key into context ram.
+ * XXX to blow away any keys already stored there.
+ */
+static int
+hifn_freesession(device_t dev, u_int64_t tid)
+{
+	struct hifn_softc *sc = device_get_softc(dev);
+	int session, error;
+	u_int32_t sid = CRYPTO_SESID2LID(tid);
+	unsigned long l_flags;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	KASSERT(sc != NULL, ("hifn_freesession: null softc"));
+	if (sc == NULL) {
+		DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
+		return (EINVAL);
+	}
+
+	HIFN_LOCK(sc);
+	session = HIFN_SESSION(sid);
+	if (session < sc->sc_nsessions) {
+		bzero(&sc->sc_sessions[session], sizeof(struct hifn_session));
+		error = 0;
+	} else {
+		DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
+		error = EINVAL;
+	}
+	HIFN_UNLOCK(sc);
+
+	return (error);
+}
+
+static int
+hifn_process(device_t dev, struct cryptop *crp, int hint)
+{
+	struct hifn_softc *sc = device_get_softc(dev);
+	struct hifn_command *cmd = NULL;
+	int session, err, ivlen;
+	struct cryptodesc *crd1, *crd2, *maccrd, *enccrd;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	if (crp == NULL || crp->crp_callback == NULL) {
+		hifnstats.hst_invalid++;
+		DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
+		return (EINVAL);
+	}
+	session = HIFN_SESSION(crp->crp_sid);
+
+	if (sc == NULL || session >= sc->sc_nsessions) {
+		DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
+		err = EINVAL;
+		goto errout;
+	}
+
+	cmd = kmalloc(sizeof(struct hifn_command), SLAB_ATOMIC);
+	if (cmd == NULL) {
+		hifnstats.hst_nomem++;
+		err = ENOMEM;
+		goto errout;
+	}
+	memset(cmd, 0, sizeof(*cmd));
+
+	if (crp->crp_flags & CRYPTO_F_SKBUF) {
+		cmd->src_skb = (struct sk_buff *)crp->crp_buf;
+		cmd->dst_skb = (struct sk_buff *)crp->crp_buf;
+	} else if (crp->crp_flags & CRYPTO_F_IOV) {
+		cmd->src_io = (struct uio *)crp->crp_buf;
+		cmd->dst_io = (struct uio *)crp->crp_buf;
+	} else {
+		cmd->src_buf = crp->crp_buf;
+		cmd->dst_buf = crp->crp_buf;
+	}
+
+	crd1 = crp->crp_desc;
+	if (crd1 == NULL) {
+		DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
+		err = EINVAL;
+		goto errout;
+	}
+	crd2 = crd1->crd_next;
+
+	if (crd2 == NULL) {
+		if (crd1->crd_alg == CRYPTO_MD5_HMAC ||
+		    crd1->crd_alg == CRYPTO_SHA1_HMAC ||
+		    crd1->crd_alg == CRYPTO_SHA1 ||
+		    crd1->crd_alg == CRYPTO_MD5) {
+			maccrd = crd1;
+			enccrd = NULL;
+		} else if (crd1->crd_alg == CRYPTO_DES_CBC ||
+		    crd1->crd_alg == CRYPTO_3DES_CBC ||
+		    crd1->crd_alg == CRYPTO_AES_CBC ||
+		    crd1->crd_alg == CRYPTO_ARC4) {
+			if ((crd1->crd_flags & CRD_F_ENCRYPT) == 0)
+				cmd->base_masks |= HIFN_BASE_CMD_DECODE;
+			maccrd = NULL;
+			enccrd = crd1;
+		} else {
+			DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
+			err = EINVAL;
+			goto errout;
+		}
+	} else {
+		if ((crd1->crd_alg == CRYPTO_MD5_HMAC ||
+                     crd1->crd_alg == CRYPTO_SHA1_HMAC ||
+                     crd1->crd_alg == CRYPTO_MD5 ||
+                     crd1->crd_alg == CRYPTO_SHA1) &&
+		    (crd2->crd_alg == CRYPTO_DES_CBC ||
+		     crd2->crd_alg == CRYPTO_3DES_CBC ||
+		     crd2->crd_alg == CRYPTO_AES_CBC ||
+		     crd2->crd_alg == CRYPTO_ARC4) &&
+		    ((crd2->crd_flags & CRD_F_ENCRYPT) == 0)) {
+			cmd->base_masks = HIFN_BASE_CMD_DECODE;
+			maccrd = crd1;
+			enccrd = crd2;
+		} else if ((crd1->crd_alg == CRYPTO_DES_CBC ||
+		     crd1->crd_alg == CRYPTO_ARC4 ||
+		     crd1->crd_alg == CRYPTO_3DES_CBC ||
+		     crd1->crd_alg == CRYPTO_AES_CBC) &&
+		    (crd2->crd_alg == CRYPTO_MD5_HMAC ||
+                     crd2->crd_alg == CRYPTO_SHA1_HMAC ||
+                     crd2->crd_alg == CRYPTO_MD5 ||
+                     crd2->crd_alg == CRYPTO_SHA1) &&
+		    (crd1->crd_flags & CRD_F_ENCRYPT)) {
+			enccrd = crd1;
+			maccrd = crd2;
+		} else {
+			/*
+			 * We cannot order the 7751 as requested
+			 */
+			DPRINTF("%s,%d: %s %d,%d,%d - EINVAL\n",__FILE__,__LINE__,__FUNCTION__, crd1->crd_alg, crd2->crd_alg, crd1->crd_flags & CRD_F_ENCRYPT);
+			err = EINVAL;
+			goto errout;
+		}
+	}
+
+	if (enccrd) {
+		cmd->enccrd = enccrd;
+		cmd->base_masks |= HIFN_BASE_CMD_CRYPT;
+		switch (enccrd->crd_alg) {
+		case CRYPTO_ARC4:
+			cmd->cry_masks |= HIFN_CRYPT_CMD_ALG_RC4;
+			break;
+		case CRYPTO_DES_CBC:
+			cmd->cry_masks |= HIFN_CRYPT_CMD_ALG_DES |
+			    HIFN_CRYPT_CMD_MODE_CBC |
+			    HIFN_CRYPT_CMD_NEW_IV;
+			break;
+		case CRYPTO_3DES_CBC:
+			cmd->cry_masks |= HIFN_CRYPT_CMD_ALG_3DES |
+			    HIFN_CRYPT_CMD_MODE_CBC |
+			    HIFN_CRYPT_CMD_NEW_IV;
+			break;
+		case CRYPTO_AES_CBC:
+			cmd->cry_masks |= HIFN_CRYPT_CMD_ALG_AES |
+			    HIFN_CRYPT_CMD_MODE_CBC |
+			    HIFN_CRYPT_CMD_NEW_IV;
+			break;
+		default:
+			DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
+			err = EINVAL;
+			goto errout;
+		}
+		if (enccrd->crd_alg != CRYPTO_ARC4) {
+			ivlen = ((enccrd->crd_alg == CRYPTO_AES_CBC) ?
+				HIFN_AES_IV_LENGTH : HIFN_IV_LENGTH);
+			if (enccrd->crd_flags & CRD_F_ENCRYPT) {
+				if (enccrd->crd_flags & CRD_F_IV_EXPLICIT)
+					bcopy(enccrd->crd_iv, cmd->iv, ivlen);
+				else
+					bcopy(sc->sc_sessions[session].hs_iv,
+					    cmd->iv, ivlen);
+
+				if ((enccrd->crd_flags & CRD_F_IV_PRESENT)
+				    == 0) {
+					crypto_copyback(crp->crp_flags,
+					    crp->crp_buf, enccrd->crd_inject,
+					    ivlen, cmd->iv);
+				}
+			} else {
+				if (enccrd->crd_flags & CRD_F_IV_EXPLICIT)
+					bcopy(enccrd->crd_iv, cmd->iv, ivlen);
+				else {
+					crypto_copydata(crp->crp_flags,
+					    crp->crp_buf, enccrd->crd_inject,
+					    ivlen, cmd->iv);
+				}
+			}
+		}
+
+		if (enccrd->crd_flags & CRD_F_KEY_EXPLICIT)
+			cmd->cry_masks |= HIFN_CRYPT_CMD_NEW_KEY;
+		cmd->ck = enccrd->crd_key;
+		cmd->cklen = enccrd->crd_klen >> 3;
+		cmd->cry_masks |= HIFN_CRYPT_CMD_NEW_KEY;
+
+		/* 
+		 * Need to specify the size for the AES key in the masks.
+		 */
+		if ((cmd->cry_masks & HIFN_CRYPT_CMD_ALG_MASK) ==
+		    HIFN_CRYPT_CMD_ALG_AES) {
+			switch (cmd->cklen) {
+			case 16:
+				cmd->cry_masks |= HIFN_CRYPT_CMD_KSZ_128;
+				break;
+			case 24:
+				cmd->cry_masks |= HIFN_CRYPT_CMD_KSZ_192;
+				break;
+			case 32:
+				cmd->cry_masks |= HIFN_CRYPT_CMD_KSZ_256;
+				break;
+			default:
+				DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
+				err = EINVAL;
+				goto errout;
+			}
+		}
+	}
+
+	if (maccrd) {
+		cmd->maccrd = maccrd;
+		cmd->base_masks |= HIFN_BASE_CMD_MAC;
+
+		switch (maccrd->crd_alg) {
+		case CRYPTO_MD5:
+			cmd->mac_masks |= HIFN_MAC_CMD_ALG_MD5 |
+			    HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HASH |
+			    HIFN_MAC_CMD_POS_IPSEC;
+                       break;
+		case CRYPTO_MD5_HMAC:
+			cmd->mac_masks |= HIFN_MAC_CMD_ALG_MD5 |
+			    HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HMAC |
+			    HIFN_MAC_CMD_POS_IPSEC | HIFN_MAC_CMD_TRUNC;
+			break;
+		case CRYPTO_SHA1:
+			cmd->mac_masks |= HIFN_MAC_CMD_ALG_SHA1 |
+			    HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HASH |
+			    HIFN_MAC_CMD_POS_IPSEC;
+			break;
+		case CRYPTO_SHA1_HMAC:
+			cmd->mac_masks |= HIFN_MAC_CMD_ALG_SHA1 |
+			    HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HMAC |
+			    HIFN_MAC_CMD_POS_IPSEC | HIFN_MAC_CMD_TRUNC;
+			break;
+		}
+
+		if (maccrd->crd_alg == CRYPTO_SHA1_HMAC ||
+		     maccrd->crd_alg == CRYPTO_MD5_HMAC) {
+			cmd->mac_masks |= HIFN_MAC_CMD_NEW_KEY;
+			bcopy(maccrd->crd_key, cmd->mac, maccrd->crd_klen >> 3);
+			bzero(cmd->mac + (maccrd->crd_klen >> 3),
+			    HIFN_MAC_KEY_LENGTH - (maccrd->crd_klen >> 3));
+		}
+	}
+
+	cmd->crp = crp;
+	cmd->session_num = session;
+	cmd->softc = sc;
+
+	err = hifn_crypto(sc, cmd, crp, hint);
+	if (!err) {
+		return 0;
+	} else if (err == ERESTART) {
+		/*
+		 * There weren't enough resources to dispatch the request
+		 * to the part.  Notify the caller so they'll requeue this
+		 * request and resubmit it again soon.
+		 */
+#ifdef HIFN_DEBUG
+		if (hifn_debug)
+			device_printf(sc->sc_dev, "requeue request\n");
+#endif
+		kfree(cmd);
+		sc->sc_needwakeup |= CRYPTO_SYMQ;
+		return (err);
+	}
+
+errout:
+	if (cmd != NULL)
+		kfree(cmd);
+	if (err == EINVAL)
+		hifnstats.hst_invalid++;
+	else
+		hifnstats.hst_nomem++;
+	crp->crp_etype = err;
+	crypto_done(crp);
+	return (err);
+}
+
+static void
+hifn_abort(struct hifn_softc *sc)
+{
+	struct hifn_dma *dma = sc->sc_dma;
+	struct hifn_command *cmd;
+	struct cryptop *crp;
+	int i, u;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	i = dma->resk; u = dma->resu;
+	while (u != 0) {
+		cmd = dma->hifn_commands[i];
+		KASSERT(cmd != NULL, ("hifn_abort: null command slot %u", i));
+		dma->hifn_commands[i] = NULL;
+		crp = cmd->crp;
+
+		if ((dma->resr[i].l & htole32(HIFN_D_VALID)) == 0) {
+			/* Salvage what we can. */
+			u_int8_t *macbuf;
+
+			if (cmd->base_masks & HIFN_BASE_CMD_MAC) {
+				macbuf = dma->result_bufs[i];
+				macbuf += 12;
+			} else
+				macbuf = NULL;
+			hifnstats.hst_opackets++;
+			hifn_callback(sc, cmd, macbuf);
+		} else {
+#if 0
+			if (cmd->src_map == cmd->dst_map) {
+				bus_dmamap_sync(sc->sc_dmat, cmd->src_map,
+				    BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
+			} else {
+				bus_dmamap_sync(sc->sc_dmat, cmd->src_map,
+				    BUS_DMASYNC_POSTWRITE);
+				bus_dmamap_sync(sc->sc_dmat, cmd->dst_map,
+				    BUS_DMASYNC_POSTREAD);
+			}
+#endif
+
+			if (cmd->src_skb != cmd->dst_skb) {
+#ifdef NOTYET
+				m_freem(cmd->src_m);
+				crp->crp_buf = (caddr_t)cmd->dst_m;
+#else
+				device_printf(sc->sc_dev,
+						"%s,%d: CRYPTO_F_SKBUF src != dst not implemented\n",
+						__FILE__, __LINE__);
+#endif
+			}
+
+			/* non-shared buffers cannot be restarted */
+			if (cmd->src_map != cmd->dst_map) {
+				/*
+				 * XXX should be EAGAIN, delayed until
+				 * after the reset.
+				 */
+				crp->crp_etype = ENOMEM;
+				pci_unmap_buf(sc, &cmd->dst);
+			} else
+				crp->crp_etype = ENOMEM;
+
+			pci_unmap_buf(sc, &cmd->src);
+
+			kfree(cmd);
+			if (crp->crp_etype != EAGAIN)
+				crypto_done(crp);
+		}
+
+		if (++i == HIFN_D_RES_RSIZE)
+			i = 0;
+		u--;
+	}
+	dma->resk = i; dma->resu = u;
+
+	hifn_reset_board(sc, 1);
+	hifn_init_dma(sc);
+	hifn_init_pci_registers(sc);
+}
+
+static void
+hifn_callback(struct hifn_softc *sc, struct hifn_command *cmd, u_int8_t *macbuf)
+{
+	struct hifn_dma *dma = sc->sc_dma;
+	struct cryptop *crp = cmd->crp;
+	struct cryptodesc *crd;
+	int i, u, ivlen;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+#if 0
+	if (cmd->src_map == cmd->dst_map) {
+		bus_dmamap_sync(sc->sc_dmat, cmd->src_map,
+		    BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD);
+	} else {
+		bus_dmamap_sync(sc->sc_dmat, cmd->src_map,
+		    BUS_DMASYNC_POSTWRITE);
+		bus_dmamap_sync(sc->sc_dmat, cmd->dst_map,
+		    BUS_DMASYNC_POSTREAD);
+	}
+#endif
+
+	if (crp->crp_flags & CRYPTO_F_SKBUF) {
+		if (cmd->src_skb != cmd->dst_skb) {
+#ifdef NOTYET
+			crp->crp_buf = (caddr_t)cmd->dst_m;
+			totlen = cmd->src_mapsize;
+			for (m = cmd->dst_m; m != NULL; m = m->m_next) {
+				if (totlen < m->m_len) {
+					m->m_len = totlen;
+					totlen = 0;
+				} else
+					totlen -= m->m_len;
+			}
+			cmd->dst_m->m_pkthdr.len = cmd->src_m->m_pkthdr.len;
+			m_freem(cmd->src_m);
+#else
+			device_printf(sc->sc_dev,
+					"%s,%d: CRYPTO_F_SKBUF src != dst not implemented\n",
+					__FILE__, __LINE__);
+#endif
+		}
+	}
+
+	if (cmd->sloplen != 0) {
+		crypto_copyback(crp->crp_flags, crp->crp_buf,
+		    cmd->src_mapsize - cmd->sloplen, cmd->sloplen,
+		    (caddr_t)&dma->slop[cmd->slopidx]);
+	}
+
+	i = dma->dstk; u = dma->dstu;
+	while (u != 0) {
+		if (i == HIFN_D_DST_RSIZE)
+			i = 0;
+#if 0
+		bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap,
+		    BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
+#endif
+		if (dma->dstr[i].l & htole32(HIFN_D_VALID)) {
+#if 0
+			bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap,
+			    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
+#endif
+			break;
+		}
+		i++, u--;
+	}
+	dma->dstk = i; dma->dstu = u;
+
+	hifnstats.hst_obytes += cmd->dst_mapsize;
+
+	if ((cmd->base_masks & (HIFN_BASE_CMD_CRYPT | HIFN_BASE_CMD_DECODE)) ==
+	    HIFN_BASE_CMD_CRYPT) {
+		for (crd = crp->crp_desc; crd; crd = crd->crd_next) {
+			if (crd->crd_alg != CRYPTO_DES_CBC &&
+			    crd->crd_alg != CRYPTO_3DES_CBC &&
+			    crd->crd_alg != CRYPTO_AES_CBC)
+				continue;
+			ivlen = ((crd->crd_alg == CRYPTO_AES_CBC) ?
+				HIFN_AES_IV_LENGTH : HIFN_IV_LENGTH);
+			crypto_copydata(crp->crp_flags, crp->crp_buf,
+			    crd->crd_skip + crd->crd_len - ivlen, ivlen,
+			    cmd->softc->sc_sessions[cmd->session_num].hs_iv);
+			break;
+		}
+	}
+
+	if (macbuf != NULL) {
+		for (crd = crp->crp_desc; crd; crd = crd->crd_next) {
+                        int len;
+
+			if (crd->crd_alg != CRYPTO_MD5 &&
+			    crd->crd_alg != CRYPTO_SHA1 &&
+			    crd->crd_alg != CRYPTO_MD5_HMAC &&
+			    crd->crd_alg != CRYPTO_SHA1_HMAC) {
+				continue;
+			}
+			len = cmd->softc->sc_sessions[cmd->session_num].hs_mlen;
+			crypto_copyback(crp->crp_flags, crp->crp_buf,
+			    crd->crd_inject, len, macbuf);
+			break;
+		}
+	}
+
+	if (cmd->src_map != cmd->dst_map)
+		pci_unmap_buf(sc, &cmd->dst);
+	pci_unmap_buf(sc, &cmd->src);
+	kfree(cmd);
+	crypto_done(crp);
+}
+
+/*
+ * 7811 PB3 rev/2 parts lock-up on burst writes to Group 0
+ * and Group 1 registers; avoid conditions that could create
+ * burst writes by doing a read in between the writes.
+ *
+ * NB: The read we interpose is always to the same register;
+ *     we do this because reading from an arbitrary (e.g. last)
+ *     register may not always work.
+ */
+static void
+hifn_write_reg_0(struct hifn_softc *sc, bus_size_t reg, u_int32_t val)
+{
+	if (sc->sc_flags & HIFN_IS_7811) {
+		if (sc->sc_bar0_lastreg == reg - 4)
+			readl(sc->sc_bar0 + HIFN_0_PUCNFG);
+		sc->sc_bar0_lastreg = reg;
+	}
+	writel(val, sc->sc_bar0 + reg);
+}
+
+static void
+hifn_write_reg_1(struct hifn_softc *sc, bus_size_t reg, u_int32_t val)
+{
+	if (sc->sc_flags & HIFN_IS_7811) {
+		if (sc->sc_bar1_lastreg == reg - 4)
+			readl(sc->sc_bar1 + HIFN_1_REVID);
+		sc->sc_bar1_lastreg = reg;
+	}
+	writel(val, sc->sc_bar1 + reg);
+}
+
+
+static struct pci_device_id hifn_pci_tbl[] = {
+	{ PCI_VENDOR_HIFN, PCI_PRODUCT_HIFN_7951,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
+	{ PCI_VENDOR_HIFN, PCI_PRODUCT_HIFN_7955,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
+	{ PCI_VENDOR_HIFN, PCI_PRODUCT_HIFN_7956,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
+	{ PCI_VENDOR_NETSEC, PCI_PRODUCT_NETSEC_7751,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
+	{ PCI_VENDOR_INVERTEX, PCI_PRODUCT_INVERTEX_AEON,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
+	{ PCI_VENDOR_HIFN, PCI_PRODUCT_HIFN_7811,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
+	/*
+	 * Other vendors share this PCI ID as well, such as
+	 * http://www.powercrypt.com, and obviously they also
+	 * use the same key.
+	 */
+	{ PCI_VENDOR_HIFN, PCI_PRODUCT_HIFN_7751,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
+	{ 0, 0, 0, 0, 0, 0, }
+};
+MODULE_DEVICE_TABLE(pci, hifn_pci_tbl);
+
+static struct pci_driver hifn_driver = {
+	.name         = "hifn",
+	.id_table     = hifn_pci_tbl,
+	.probe        =	hifn_probe,
+	.remove       = hifn_remove,
+	/* add PM stuff here one day */
+};
+
+static int __init hifn_init (void)
+{
+	struct hifn_softc *sc = NULL;
+	int rc;
+
+	DPRINTF("%s(%p)\n", __FUNCTION__, hifn_init);
+
+	rc = pci_register_driver(&hifn_driver);
+	pci_register_driver_compat(&hifn_driver, rc);
+
+	return rc;
+}
+
+static void __exit hifn_exit (void)
+{
+	pci_unregister_driver(&hifn_driver);
+}
+
+module_init(hifn_init);
+module_exit(hifn_exit);
+
+MODULE_LICENSE("BSD");
+MODULE_AUTHOR("David McCullough <david_mccullough@securecomputing.com>");
+MODULE_DESCRIPTION("OCF driver for hifn PCI crypto devices");
diff -Nur linux-2.6.29.1.orig/crypto/ocf/hifn/hifn7751reg.h linux-2.6.29.1/crypto/ocf/hifn/hifn7751reg.h
--- linux-2.6.29.1.orig/crypto/ocf/hifn/hifn7751reg.h	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/hifn/hifn7751reg.h	2009-04-20 20:01:21.488556145 +0200
@@ -0,0 +1,540 @@
+/* $FreeBSD: src/sys/dev/hifn/hifn7751reg.h,v 1.7 2007/03/21 03:42:49 sam Exp $ */
+/*	$OpenBSD: hifn7751reg.h,v 1.35 2002/04/08 17:49:42 jason Exp $	*/
+
+/*-
+ * Invertex AEON / Hifn 7751 driver
+ * Copyright (c) 1999 Invertex Inc. All rights reserved.
+ * Copyright (c) 1999 Theo de Raadt
+ * Copyright (c) 2000-2001 Network Security Technologies, Inc.
+ *			http://www.netsec.net
+ *
+ * Please send any comments, feedback, bug-fixes, or feature requests to
+ * software@invertex.com.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Effort sponsored in part by the Defense Advanced Research Projects
+ * Agency (DARPA) and Air Force Research Laboratory, Air Force
+ * Materiel Command, USAF, under agreement number F30602-01-2-0537.
+ *
+ */
+#ifndef __HIFN_H__
+#define	__HIFN_H__
+
+/*
+ * Some PCI configuration space offset defines.  The names were made
+ * identical to the names used by the Linux kernel.
+ */
+#define	HIFN_BAR0		PCIR_BAR(0)	/* PUC register map */
+#define	HIFN_BAR1		PCIR_BAR(1)	/* DMA register map */
+#define	HIFN_TRDY_TIMEOUT	0x40
+#define	HIFN_RETRY_TIMEOUT	0x41
+
+/*
+ * PCI vendor and device identifiers
+ * (the names are preserved from their OpenBSD source).
+ */
+#define	PCI_VENDOR_HIFN		0x13a3		/* Hifn */
+#define	PCI_PRODUCT_HIFN_7751	0x0005		/* 7751 */
+#define	PCI_PRODUCT_HIFN_6500	0x0006		/* 6500 */
+#define	PCI_PRODUCT_HIFN_7811	0x0007		/* 7811 */
+#define	PCI_PRODUCT_HIFN_7855	0x001f		/* 7855 */
+#define	PCI_PRODUCT_HIFN_7951	0x0012		/* 7951 */
+#define	PCI_PRODUCT_HIFN_7955	0x0020		/* 7954/7955 */
+#define	PCI_PRODUCT_HIFN_7956	0x001d		/* 7956 */
+
+#define	PCI_VENDOR_INVERTEX	0x14e1		/* Invertex */
+#define	PCI_PRODUCT_INVERTEX_AEON 0x0005	/* AEON */
+
+#define	PCI_VENDOR_NETSEC	0x1660		/* NetSec */
+#define	PCI_PRODUCT_NETSEC_7751	0x7751		/* 7751 */
+
+/*
+ * The values below should multiple of 4 -- and be large enough to handle
+ * any command the driver implements.
+ *
+ * MAX_COMMAND = base command + mac command + encrypt command +
+ *			mac-key + rc4-key
+ * MAX_RESULT  = base result + mac result + mac + encrypt result
+ *			
+ *
+ */
+#define	HIFN_MAX_COMMAND	(8 + 8 + 8 + 64 + 260)
+#define	HIFN_MAX_RESULT		(8 + 4 + 20 + 4)
+
+/*
+ * hifn_desc_t
+ *
+ * Holds an individual descriptor for any of the rings.
+ */
+typedef struct hifn_desc {
+	volatile u_int32_t l;		/* length and status bits */
+	volatile u_int32_t p;
+} hifn_desc_t;
+
+/*
+ * Masks for the "length" field of struct hifn_desc.
+ */
+#define	HIFN_D_LENGTH		0x0000ffff	/* length bit mask */
+#define	HIFN_D_MASKDONEIRQ	0x02000000	/* mask the done interrupt */
+#define	HIFN_D_DESTOVER		0x04000000	/* destination overflow */
+#define	HIFN_D_OVER		0x08000000	/* overflow */
+#define	HIFN_D_LAST		0x20000000	/* last descriptor in chain */
+#define	HIFN_D_JUMP		0x40000000	/* jump descriptor */
+#define	HIFN_D_VALID		0x80000000	/* valid bit */
+
+
+/*
+ * Processing Unit Registers (offset from BASEREG0)
+ */
+#define	HIFN_0_PUDATA		0x00	/* Processing Unit Data */
+#define	HIFN_0_PUCTRL		0x04	/* Processing Unit Control */
+#define	HIFN_0_PUISR		0x08	/* Processing Unit Interrupt Status */
+#define	HIFN_0_PUCNFG		0x0c	/* Processing Unit Configuration */
+#define	HIFN_0_PUIER		0x10	/* Processing Unit Interrupt Enable */
+#define	HIFN_0_PUSTAT		0x14	/* Processing Unit Status/Chip ID */
+#define	HIFN_0_FIFOSTAT		0x18	/* FIFO Status */
+#define	HIFN_0_FIFOCNFG		0x1c	/* FIFO Configuration */
+#define	HIFN_0_PUCTRL2		0x28	/* Processing Unit Control (2nd map) */
+#define	HIFN_0_MUTE1		0x80
+#define	HIFN_0_MUTE2		0x90
+#define	HIFN_0_SPACESIZE	0x100	/* Register space size */
+
+/* Processing Unit Control Register (HIFN_0_PUCTRL) */
+#define	HIFN_PUCTRL_CLRSRCFIFO	0x0010	/* clear source fifo */
+#define	HIFN_PUCTRL_STOP	0x0008	/* stop pu */
+#define	HIFN_PUCTRL_LOCKRAM	0x0004	/* lock ram */
+#define	HIFN_PUCTRL_DMAENA	0x0002	/* enable dma */
+#define	HIFN_PUCTRL_RESET	0x0001	/* Reset processing unit */
+
+/* Processing Unit Interrupt Status Register (HIFN_0_PUISR) */
+#define	HIFN_PUISR_CMDINVAL	0x8000	/* Invalid command interrupt */
+#define	HIFN_PUISR_DATAERR	0x4000	/* Data error interrupt */
+#define	HIFN_PUISR_SRCFIFO	0x2000	/* Source FIFO ready interrupt */
+#define	HIFN_PUISR_DSTFIFO	0x1000	/* Destination FIFO ready interrupt */
+#define	HIFN_PUISR_DSTOVER	0x0200	/* Destination overrun interrupt */
+#define	HIFN_PUISR_SRCCMD	0x0080	/* Source command interrupt */
+#define	HIFN_PUISR_SRCCTX	0x0040	/* Source context interrupt */
+#define	HIFN_PUISR_SRCDATA	0x0020	/* Source data interrupt */
+#define	HIFN_PUISR_DSTDATA	0x0010	/* Destination data interrupt */
+#define	HIFN_PUISR_DSTRESULT	0x0004	/* Destination result interrupt */
+
+/* Processing Unit Configuration Register (HIFN_0_PUCNFG) */
+#define	HIFN_PUCNFG_DRAMMASK	0xe000	/* DRAM size mask */
+#define	HIFN_PUCNFG_DSZ_256K	0x0000	/* 256k dram */
+#define	HIFN_PUCNFG_DSZ_512K	0x2000	/* 512k dram */
+#define	HIFN_PUCNFG_DSZ_1M	0x4000	/* 1m dram */
+#define	HIFN_PUCNFG_DSZ_2M	0x6000	/* 2m dram */
+#define	HIFN_PUCNFG_DSZ_4M	0x8000	/* 4m dram */
+#define	HIFN_PUCNFG_DSZ_8M	0xa000	/* 8m dram */
+#define	HIFN_PUNCFG_DSZ_16M	0xc000	/* 16m dram */
+#define	HIFN_PUCNFG_DSZ_32M	0xe000	/* 32m dram */
+#define	HIFN_PUCNFG_DRAMREFRESH	0x1800	/* DRAM refresh rate mask */
+#define	HIFN_PUCNFG_DRFR_512	0x0000	/* 512 divisor of ECLK */
+#define	HIFN_PUCNFG_DRFR_256	0x0800	/* 256 divisor of ECLK */
+#define	HIFN_PUCNFG_DRFR_128	0x1000	/* 128 divisor of ECLK */
+#define	HIFN_PUCNFG_TCALLPHASES	0x0200	/* your guess is as good as mine... */
+#define	HIFN_PUCNFG_TCDRVTOTEM	0x0100	/* your guess is as good as mine... */
+#define	HIFN_PUCNFG_BIGENDIAN	0x0080	/* DMA big endian mode */
+#define	HIFN_PUCNFG_BUS32	0x0040	/* Bus width 32bits */
+#define	HIFN_PUCNFG_BUS16	0x0000	/* Bus width 16 bits */
+#define	HIFN_PUCNFG_CHIPID	0x0020	/* Allow chipid from PUSTAT */
+#define	HIFN_PUCNFG_DRAM	0x0010	/* Context RAM is DRAM */
+#define	HIFN_PUCNFG_SRAM	0x0000	/* Context RAM is SRAM */
+#define	HIFN_PUCNFG_COMPSING	0x0004	/* Enable single compression context */
+#define	HIFN_PUCNFG_ENCCNFG	0x0002	/* Encryption configuration */
+
+/* Processing Unit Interrupt Enable Register (HIFN_0_PUIER) */
+#define	HIFN_PUIER_CMDINVAL	0x8000	/* Invalid command interrupt */
+#define	HIFN_PUIER_DATAERR	0x4000	/* Data error interrupt */
+#define	HIFN_PUIER_SRCFIFO	0x2000	/* Source FIFO ready interrupt */
+#define	HIFN_PUIER_DSTFIFO	0x1000	/* Destination FIFO ready interrupt */
+#define	HIFN_PUIER_DSTOVER	0x0200	/* Destination overrun interrupt */
+#define	HIFN_PUIER_SRCCMD	0x0080	/* Source command interrupt */
+#define	HIFN_PUIER_SRCCTX	0x0040	/* Source context interrupt */
+#define	HIFN_PUIER_SRCDATA	0x0020	/* Source data interrupt */
+#define	HIFN_PUIER_DSTDATA	0x0010	/* Destination data interrupt */
+#define	HIFN_PUIER_DSTRESULT	0x0004	/* Destination result interrupt */
+
+/* Processing Unit Status Register/Chip ID (HIFN_0_PUSTAT) */
+#define	HIFN_PUSTAT_CMDINVAL	0x8000	/* Invalid command interrupt */
+#define	HIFN_PUSTAT_DATAERR	0x4000	/* Data error interrupt */
+#define	HIFN_PUSTAT_SRCFIFO	0x2000	/* Source FIFO ready interrupt */
+#define	HIFN_PUSTAT_DSTFIFO	0x1000	/* Destination FIFO ready interrupt */
+#define	HIFN_PUSTAT_DSTOVER	0x0200	/* Destination overrun interrupt */
+#define	HIFN_PUSTAT_SRCCMD	0x0080	/* Source command interrupt */
+#define	HIFN_PUSTAT_SRCCTX	0x0040	/* Source context interrupt */
+#define	HIFN_PUSTAT_SRCDATA	0x0020	/* Source data interrupt */
+#define	HIFN_PUSTAT_DSTDATA	0x0010	/* Destination data interrupt */
+#define	HIFN_PUSTAT_DSTRESULT	0x0004	/* Destination result interrupt */
+#define	HIFN_PUSTAT_CHIPREV	0x00ff	/* Chip revision mask */
+#define	HIFN_PUSTAT_CHIPENA	0xff00	/* Chip enabled mask */
+#define	HIFN_PUSTAT_ENA_2	0x1100	/* Level 2 enabled */
+#define	HIFN_PUSTAT_ENA_1	0x1000	/* Level 1 enabled */
+#define	HIFN_PUSTAT_ENA_0	0x3000	/* Level 0 enabled */
+#define	HIFN_PUSTAT_REV_2	0x0020	/* 7751 PT6/2 */
+#define	HIFN_PUSTAT_REV_3	0x0030	/* 7751 PT6/3 */
+
+/* FIFO Status Register (HIFN_0_FIFOSTAT) */
+#define	HIFN_FIFOSTAT_SRC	0x7f00	/* Source FIFO available */
+#define	HIFN_FIFOSTAT_DST	0x007f	/* Destination FIFO available */
+
+/* FIFO Configuration Register (HIFN_0_FIFOCNFG) */
+#define	HIFN_FIFOCNFG_THRESHOLD	0x0400	/* must be written as this value */
+
+/*
+ * DMA Interface Registers (offset from BASEREG1)
+ */
+#define	HIFN_1_DMA_CRAR		0x0c	/* DMA Command Ring Address */
+#define	HIFN_1_DMA_SRAR		0x1c	/* DMA Source Ring Address */
+#define	HIFN_1_DMA_RRAR		0x2c	/* DMA Result Ring Address */
+#define	HIFN_1_DMA_DRAR		0x3c	/* DMA Destination Ring Address */
+#define	HIFN_1_DMA_CSR		0x40	/* DMA Status and Control */
+#define	HIFN_1_DMA_IER		0x44	/* DMA Interrupt Enable */
+#define	HIFN_1_DMA_CNFG		0x48	/* DMA Configuration */
+#define	HIFN_1_PLL		0x4c	/* 7955/7956: PLL config */
+#define	HIFN_1_7811_RNGENA	0x60	/* 7811: rng enable */
+#define	HIFN_1_7811_RNGCFG	0x64	/* 7811: rng config */
+#define	HIFN_1_7811_RNGDAT	0x68	/* 7811: rng data */
+#define	HIFN_1_7811_RNGSTS	0x6c	/* 7811: rng status */
+#define	HIFN_1_DMA_CNFG2	0x6c	/* 7955/7956: dma config #2 */
+#define	HIFN_1_7811_MIPSRST	0x94	/* 7811: MIPS reset */
+#define	HIFN_1_REVID		0x98	/* Revision ID */
+
+#define	HIFN_1_PUB_RESET	0x204	/* Public/RNG Reset */
+#define	HIFN_1_PUB_BASE		0x300	/* Public Base Address */
+#define	HIFN_1_PUB_OPLEN	0x304	/* 7951-compat Public Operand Length */
+#define	HIFN_1_PUB_OP		0x308	/* 7951-compat Public Operand */
+#define	HIFN_1_PUB_STATUS	0x30c	/* 7951-compat Public Status */
+#define	HIFN_1_PUB_IEN		0x310	/* Public Interrupt enable */
+#define	HIFN_1_RNG_CONFIG	0x314	/* RNG config */
+#define	HIFN_1_RNG_DATA		0x318	/* RNG data */
+#define	HIFN_1_PUB_MODE		0x320	/* PK mode */
+#define	HIFN_1_PUB_FIFO_OPLEN	0x380	/* first element of oplen fifo */
+#define	HIFN_1_PUB_FIFO_OP	0x384	/* first element of op fifo */
+#define	HIFN_1_PUB_MEM		0x400	/* start of Public key memory */
+#define	HIFN_1_PUB_MEMEND	0xbff	/* end of Public key memory */
+
+/* DMA Status and Control Register (HIFN_1_DMA_CSR) */
+#define	HIFN_DMACSR_D_CTRLMASK	0xc0000000	/* Destinition Ring Control */
+#define	HIFN_DMACSR_D_CTRL_NOP	0x00000000	/* Dest. Control: no-op */
+#define	HIFN_DMACSR_D_CTRL_DIS	0x40000000	/* Dest. Control: disable */
+#define	HIFN_DMACSR_D_CTRL_ENA	0x80000000	/* Dest. Control: enable */
+#define	HIFN_DMACSR_D_ABORT	0x20000000	/* Destinition Ring PCIAbort */
+#define	HIFN_DMACSR_D_DONE	0x10000000	/* Destinition Ring Done */
+#define	HIFN_DMACSR_D_LAST	0x08000000	/* Destinition Ring Last */
+#define	HIFN_DMACSR_D_WAIT	0x04000000	/* Destinition Ring Waiting */
+#define	HIFN_DMACSR_D_OVER	0x02000000	/* Destinition Ring Overflow */
+#define	HIFN_DMACSR_R_CTRL	0x00c00000	/* Result Ring Control */
+#define	HIFN_DMACSR_R_CTRL_NOP	0x00000000	/* Result Control: no-op */
+#define	HIFN_DMACSR_R_CTRL_DIS	0x00400000	/* Result Control: disable */
+#define	HIFN_DMACSR_R_CTRL_ENA	0x00800000	/* Result Control: enable */
+#define	HIFN_DMACSR_R_ABORT	0x00200000	/* Result Ring PCI Abort */
+#define	HIFN_DMACSR_R_DONE	0x00100000	/* Result Ring Done */
+#define	HIFN_DMACSR_R_LAST	0x00080000	/* Result Ring Last */
+#define	HIFN_DMACSR_R_WAIT	0x00040000	/* Result Ring Waiting */
+#define	HIFN_DMACSR_R_OVER	0x00020000	/* Result Ring Overflow */
+#define	HIFN_DMACSR_S_CTRL	0x0000c000	/* Source Ring Control */
+#define	HIFN_DMACSR_S_CTRL_NOP	0x00000000	/* Source Control: no-op */
+#define	HIFN_DMACSR_S_CTRL_DIS	0x00004000	/* Source Control: disable */
+#define	HIFN_DMACSR_S_CTRL_ENA	0x00008000	/* Source Control: enable */
+#define	HIFN_DMACSR_S_ABORT	0x00002000	/* Source Ring PCI Abort */
+#define	HIFN_DMACSR_S_DONE	0x00001000	/* Source Ring Done */
+#define	HIFN_DMACSR_S_LAST	0x00000800	/* Source Ring Last */
+#define	HIFN_DMACSR_S_WAIT	0x00000400	/* Source Ring Waiting */
+#define	HIFN_DMACSR_ILLW	0x00000200	/* Illegal write (7811 only) */
+#define	HIFN_DMACSR_ILLR	0x00000100	/* Illegal read (7811 only) */
+#define	HIFN_DMACSR_C_CTRL	0x000000c0	/* Command Ring Control */
+#define	HIFN_DMACSR_C_CTRL_NOP	0x00000000	/* Command Control: no-op */
+#define	HIFN_DMACSR_C_CTRL_DIS	0x00000040	/* Command Control: disable */
+#define	HIFN_DMACSR_C_CTRL_ENA	0x00000080	/* Command Control: enable */
+#define	HIFN_DMACSR_C_ABORT	0x00000020	/* Command Ring PCI Abort */
+#define	HIFN_DMACSR_C_DONE	0x00000010	/* Command Ring Done */
+#define	HIFN_DMACSR_C_LAST	0x00000008	/* Command Ring Last */
+#define	HIFN_DMACSR_C_WAIT	0x00000004	/* Command Ring Waiting */
+#define	HIFN_DMACSR_PUBDONE	0x00000002	/* Public op done (7951 only) */
+#define	HIFN_DMACSR_ENGINE	0x00000001	/* Command Ring Engine IRQ */
+
+/* DMA Interrupt Enable Register (HIFN_1_DMA_IER) */
+#define	HIFN_DMAIER_D_ABORT	0x20000000	/* Destination Ring PCIAbort */
+#define	HIFN_DMAIER_D_DONE	0x10000000	/* Destination Ring Done */
+#define	HIFN_DMAIER_D_LAST	0x08000000	/* Destination Ring Last */
+#define	HIFN_DMAIER_D_WAIT	0x04000000	/* Destination Ring Waiting */
+#define	HIFN_DMAIER_D_OVER	0x02000000	/* Destination Ring Overflow */
+#define	HIFN_DMAIER_R_ABORT	0x00200000	/* Result Ring PCI Abort */
+#define	HIFN_DMAIER_R_DONE	0x00100000	/* Result Ring Done */
+#define	HIFN_DMAIER_R_LAST	0x00080000	/* Result Ring Last */
+#define	HIFN_DMAIER_R_WAIT	0x00040000	/* Result Ring Waiting */
+#define	HIFN_DMAIER_R_OVER	0x00020000	/* Result Ring Overflow */
+#define	HIFN_DMAIER_S_ABORT	0x00002000	/* Source Ring PCI Abort */
+#define	HIFN_DMAIER_S_DONE	0x00001000	/* Source Ring Done */
+#define	HIFN_DMAIER_S_LAST	0x00000800	/* Source Ring Last */
+#define	HIFN_DMAIER_S_WAIT	0x00000400	/* Source Ring Waiting */
+#define	HIFN_DMAIER_ILLW	0x00000200	/* Illegal write (7811 only) */
+#define	HIFN_DMAIER_ILLR	0x00000100	/* Illegal read (7811 only) */
+#define	HIFN_DMAIER_C_ABORT	0x00000020	/* Command Ring PCI Abort */
+#define	HIFN_DMAIER_C_DONE	0x00000010	/* Command Ring Done */
+#define	HIFN_DMAIER_C_LAST	0x00000008	/* Command Ring Last */
+#define	HIFN_DMAIER_C_WAIT	0x00000004	/* Command Ring Waiting */
+#define	HIFN_DMAIER_PUBDONE	0x00000002	/* public op done (7951 only) */
+#define	HIFN_DMAIER_ENGINE	0x00000001	/* Engine IRQ */
+
+/* DMA Configuration Register (HIFN_1_DMA_CNFG) */
+#define	HIFN_DMACNFG_BIGENDIAN	0x10000000	/* big endian mode */
+#define	HIFN_DMACNFG_POLLFREQ	0x00ff0000	/* Poll frequency mask */
+#define	HIFN_DMACNFG_UNLOCK	0x00000800
+#define	HIFN_DMACNFG_POLLINVAL	0x00000700	/* Invalid Poll Scalar */
+#define	HIFN_DMACNFG_LAST	0x00000010	/* Host control LAST bit */
+#define	HIFN_DMACNFG_MODE	0x00000004	/* DMA mode */
+#define	HIFN_DMACNFG_DMARESET	0x00000002	/* DMA Reset # */
+#define	HIFN_DMACNFG_MSTRESET	0x00000001	/* Master Reset # */
+
+/* DMA Configuration Register (HIFN_1_DMA_CNFG2) */
+#define	HIFN_DMACNFG2_PKSWAP32	(1 << 19)	/* swap the OPLEN/OP reg */
+#define	HIFN_DMACNFG2_PKSWAP8	(1 << 18)	/* swap the bits of OPLEN/OP */
+#define	HIFN_DMACNFG2_BAR0_SWAP32 (1<<17)	/* swap the bytes of BAR0 */
+#define	HIFN_DMACNFG2_BAR1_SWAP8 (1<<16)	/* swap the bits  of BAR0 */
+#define	HIFN_DMACNFG2_INIT_WRITE_BURST_SHIFT 12
+#define	HIFN_DMACNFG2_INIT_READ_BURST_SHIFT 8
+#define	HIFN_DMACNFG2_TGT_WRITE_BURST_SHIFT 4
+#define	HIFN_DMACNFG2_TGT_READ_BURST_SHIFT  0
+
+/* 7811 RNG Enable Register (HIFN_1_7811_RNGENA) */
+#define	HIFN_7811_RNGENA_ENA	0x00000001	/* enable RNG */
+
+/* 7811 RNG Config Register (HIFN_1_7811_RNGCFG) */
+#define	HIFN_7811_RNGCFG_PRE1	0x00000f00	/* first prescalar */
+#define	HIFN_7811_RNGCFG_OPRE	0x00000080	/* output prescalar */
+#define	HIFN_7811_RNGCFG_DEFL	0x00000f80	/* 2 words/ 1/100 sec */
+
+/* 7811 RNG Status Register (HIFN_1_7811_RNGSTS) */
+#define	HIFN_7811_RNGSTS_RDY	0x00004000	/* two numbers in FIFO */
+#define	HIFN_7811_RNGSTS_UFL	0x00001000	/* rng underflow */
+
+/* 7811 MIPS Reset Register (HIFN_1_7811_MIPSRST) */
+#define	HIFN_MIPSRST_BAR2SIZE	0xffff0000	/* sdram size */
+#define	HIFN_MIPSRST_GPRAMINIT	0x00008000	/* gpram can be accessed */
+#define	HIFN_MIPSRST_CRAMINIT	0x00004000	/* ctxram can be accessed */
+#define	HIFN_MIPSRST_LED2	0x00000400	/* external LED2 */
+#define	HIFN_MIPSRST_LED1	0x00000200	/* external LED1 */
+#define	HIFN_MIPSRST_LED0	0x00000100	/* external LED0 */
+#define	HIFN_MIPSRST_MIPSDIS	0x00000004	/* disable MIPS */
+#define	HIFN_MIPSRST_MIPSRST	0x00000002	/* warm reset MIPS */
+#define	HIFN_MIPSRST_MIPSCOLD	0x00000001	/* cold reset MIPS */
+
+/* Public key reset register (HIFN_1_PUB_RESET) */
+#define	HIFN_PUBRST_RESET	0x00000001	/* reset public/rng unit */
+
+/* Public operation register (HIFN_1_PUB_OP) */
+#define	HIFN_PUBOP_AOFFSET	0x0000003e	/* A offset */
+#define	HIFN_PUBOP_BOFFSET	0x00000fc0	/* B offset */
+#define	HIFN_PUBOP_MOFFSET	0x0003f000	/* M offset */
+#define	HIFN_PUBOP_OP_MASK	0x003c0000	/* Opcode: */
+#define	HIFN_PUBOP_OP_NOP	0x00000000	/*  NOP */
+#define	HIFN_PUBOP_OP_ADD	0x00040000	/*  ADD */
+#define	HIFN_PUBOP_OP_ADDC	0x00080000	/*  ADD w/carry */
+#define	HIFN_PUBOP_OP_SUB	0x000c0000	/*  SUB */
+#define	HIFN_PUBOP_OP_SUBC	0x00100000	/*  SUB w/carry */
+#define	HIFN_PUBOP_OP_MODADD	0x00140000	/*  Modular ADD */
+#define	HIFN_PUBOP_OP_MODSUB	0x00180000	/*  Modular SUB */
+#define	HIFN_PUBOP_OP_INCA	0x001c0000	/*  INC A */
+#define	HIFN_PUBOP_OP_DECA	0x00200000	/*  DEC A */
+#define	HIFN_PUBOP_OP_MULT	0x00240000	/*  MULT */
+#define	HIFN_PUBOP_OP_MODMULT	0x00280000	/*  Modular MULT */
+#define	HIFN_PUBOP_OP_MODRED	0x002c0000	/*  Modular Red */
+#define	HIFN_PUBOP_OP_MODEXP	0x00300000	/*  Modular Exp */
+
+/* Public operand length register (HIFN_1_PUB_OPLEN) */
+#define	HIFN_PUBOPLEN_MODLEN	0x0000007f
+#define	HIFN_PUBOPLEN_EXPLEN	0x0003ff80
+#define	HIFN_PUBOPLEN_REDLEN	0x003c0000
+
+/* Public status register (HIFN_1_PUB_STATUS) */
+#define	HIFN_PUBSTS_DONE	0x00000001	/* operation done */
+#define	HIFN_PUBSTS_CARRY	0x00000002	/* carry */
+#define	HIFN_PUBSTS_FIFO_EMPTY	0x00000100	/* fifo empty */
+#define	HIFN_PUBSTS_FIFO_FULL	0x00000200	/* fifo full */
+#define	HIFN_PUBSTS_FIFO_OVFL	0x00000400	/* fifo overflow */
+#define	HIFN_PUBSTS_FIFO_WRITE	0x000f0000	/* fifo write */
+#define	HIFN_PUBSTS_FIFO_READ	0x0f000000	/* fifo read */
+
+/* Public interrupt enable register (HIFN_1_PUB_IEN) */
+#define	HIFN_PUBIEN_DONE	0x00000001	/* operation done interrupt */
+
+/* Random number generator config register (HIFN_1_RNG_CONFIG) */
+#define	HIFN_RNGCFG_ENA		0x00000001	/* enable rng */
+
+/*
+ * Register offsets in register set 1
+ */
+
+#define	HIFN_UNLOCK_SECRET1	0xf4
+#define	HIFN_UNLOCK_SECRET2	0xfc
+
+/*
+ * PLL config register
+ *
+ * This register is present only on 7954/7955/7956 parts. It must be
+ * programmed according to the bus interface method used by the h/w.
+ * Note that the parts require a stable clock.  Since the PCI clock
+ * may vary the reference clock must usually be used.  To avoid
+ * overclocking the core logic, setup must be done carefully, refer
+ * to the driver for details.  The exact multiplier required varies
+ * by part and system configuration; refer to the Hifn documentation.
+ */
+#define	HIFN_PLL_REF_SEL	0x00000001	/* REF/HBI clk selection */
+#define	HIFN_PLL_BP		0x00000002	/* bypass (used during setup) */
+/* bit 2 reserved */
+#define	HIFN_PLL_PK_CLK_SEL	0x00000008	/* public key clk select */
+#define	HIFN_PLL_PE_CLK_SEL	0x00000010	/* packet engine clk select */
+/* bits 5-9 reserved */
+#define	HIFN_PLL_MBSET		0x00000400	/* must be set to 1 */
+#define	HIFN_PLL_ND		0x00003800	/* Fpll_ref multiplier select */
+#define	HIFN_PLL_ND_SHIFT	11
+#define	HIFN_PLL_ND_2		0x00000000	/* 2x */
+#define	HIFN_PLL_ND_4		0x00000800	/* 4x */
+#define	HIFN_PLL_ND_6		0x00001000	/* 6x */
+#define	HIFN_PLL_ND_8		0x00001800	/* 8x */
+#define	HIFN_PLL_ND_10		0x00002000	/* 10x */
+#define	HIFN_PLL_ND_12		0x00002800	/* 12x */
+/* bits 14-15 reserved */
+#define	HIFN_PLL_IS		0x00010000	/* charge pump current select */
+/* bits 17-31 reserved */
+
+/*
+ * Board configuration specifies only these bits.
+ */
+#define	HIFN_PLL_CONFIG		(HIFN_PLL_IS|HIFN_PLL_ND|HIFN_PLL_REF_SEL)
+
+/*
+ * Public Key Engine Mode Register
+ */
+#define	HIFN_PKMODE_HOSTINVERT	(1 << 0)	/* HOST INVERT */
+#define	HIFN_PKMODE_ENHANCED	(1 << 1)	/* Enable enhanced mode */
+
+
+/*********************************************************************
+ * Structs for board commands 
+ *
+ *********************************************************************/
+
+/*
+ * Structure to help build up the command data structure.
+ */
+typedef struct hifn_base_command {
+	volatile u_int16_t masks;
+	volatile u_int16_t session_num;
+	volatile u_int16_t total_source_count;
+	volatile u_int16_t total_dest_count;
+} hifn_base_command_t;
+
+#define	HIFN_BASE_CMD_MAC		0x0400
+#define	HIFN_BASE_CMD_CRYPT		0x0800
+#define	HIFN_BASE_CMD_DECODE		0x2000
+#define	HIFN_BASE_CMD_SRCLEN_M		0xc000
+#define	HIFN_BASE_CMD_SRCLEN_S		14
+#define	HIFN_BASE_CMD_DSTLEN_M		0x3000
+#define	HIFN_BASE_CMD_DSTLEN_S		12
+#define	HIFN_BASE_CMD_LENMASK_HI	0x30000
+#define	HIFN_BASE_CMD_LENMASK_LO	0x0ffff
+
+/*
+ * Structure to help build up the command data structure.
+ */
+typedef struct hifn_crypt_command {
+	volatile u_int16_t masks;
+	volatile u_int16_t header_skip;
+	volatile u_int16_t source_count;
+	volatile u_int16_t reserved;
+} hifn_crypt_command_t;
+
+#define	HIFN_CRYPT_CMD_ALG_MASK		0x0003		/* algorithm: */
+#define	HIFN_CRYPT_CMD_ALG_DES		0x0000		/*   DES */
+#define	HIFN_CRYPT_CMD_ALG_3DES		0x0001		/*   3DES */
+#define	HIFN_CRYPT_CMD_ALG_RC4		0x0002		/*   RC4 */
+#define	HIFN_CRYPT_CMD_ALG_AES		0x0003		/*   AES */
+#define	HIFN_CRYPT_CMD_MODE_MASK	0x0018		/* Encrypt mode: */
+#define	HIFN_CRYPT_CMD_MODE_ECB		0x0000		/*   ECB */
+#define	HIFN_CRYPT_CMD_MODE_CBC		0x0008		/*   CBC */
+#define	HIFN_CRYPT_CMD_MODE_CFB		0x0010		/*   CFB */
+#define	HIFN_CRYPT_CMD_MODE_OFB		0x0018		/*   OFB */
+#define	HIFN_CRYPT_CMD_CLR_CTX		0x0040		/* clear context */
+#define	HIFN_CRYPT_CMD_NEW_KEY		0x0800		/* expect new key */
+#define	HIFN_CRYPT_CMD_NEW_IV		0x1000		/* expect new iv */
+
+#define	HIFN_CRYPT_CMD_SRCLEN_M		0xc000
+#define	HIFN_CRYPT_CMD_SRCLEN_S		14
+
+#define	HIFN_CRYPT_CMD_KSZ_MASK		0x0600		/* AES key size: */
+#define	HIFN_CRYPT_CMD_KSZ_128		0x0000		/*   128 bit */
+#define	HIFN_CRYPT_CMD_KSZ_192		0x0200		/*   192 bit */
+#define	HIFN_CRYPT_CMD_KSZ_256		0x0400		/*   256 bit */
+
+/*
+ * Structure to help build up the command data structure.
+ */
+typedef struct hifn_mac_command {
+	volatile u_int16_t masks;
+	volatile u_int16_t header_skip;
+	volatile u_int16_t source_count;
+	volatile u_int16_t reserved;
+} hifn_mac_command_t;
+
+#define	HIFN_MAC_CMD_ALG_MASK		0x0001
+#define	HIFN_MAC_CMD_ALG_SHA1		0x0000
+#define	HIFN_MAC_CMD_ALG_MD5		0x0001
+#define	HIFN_MAC_CMD_MODE_MASK		0x000c
+#define	HIFN_MAC_CMD_MODE_HMAC		0x0000
+#define	HIFN_MAC_CMD_MODE_SSL_MAC	0x0004
+#define	HIFN_MAC_CMD_MODE_HASH		0x0008
+#define	HIFN_MAC_CMD_MODE_FULL		0x0004
+#define	HIFN_MAC_CMD_TRUNC		0x0010
+#define	HIFN_MAC_CMD_RESULT		0x0020
+#define	HIFN_MAC_CMD_APPEND		0x0040
+#define	HIFN_MAC_CMD_SRCLEN_M		0xc000
+#define	HIFN_MAC_CMD_SRCLEN_S		14
+
+/*
+ * MAC POS IPsec initiates authentication after encryption on encodes
+ * and before decryption on decodes.
+ */
+#define	HIFN_MAC_CMD_POS_IPSEC		0x0200
+#define	HIFN_MAC_CMD_NEW_KEY		0x0800
+
+/*
+ * The poll frequency and poll scalar defines are unshifted values used
+ * to set fields in the DMA Configuration Register.
+ */
+#ifndef HIFN_POLL_FREQUENCY
+#define	HIFN_POLL_FREQUENCY	0x1
+#endif
+
+#ifndef HIFN_POLL_SCALAR
+#define	HIFN_POLL_SCALAR	0x0
+#endif
+
+#define	HIFN_MAX_SEGLEN 	0xffff		/* maximum dma segment len */
+#define	HIFN_MAX_DMALEN		0x3ffff		/* maximum dma length */
+#endif /* __HIFN_H__ */
diff -Nur linux-2.6.29.1.orig/crypto/ocf/hifn/hifn7751var.h linux-2.6.29.1/crypto/ocf/hifn/hifn7751var.h
--- linux-2.6.29.1.orig/crypto/ocf/hifn/hifn7751var.h	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/hifn/hifn7751var.h	2009-04-20 20:01:21.488556145 +0200
@@ -0,0 +1,369 @@
+/* $FreeBSD: src/sys/dev/hifn/hifn7751var.h,v 1.9 2007/03/21 03:42:49 sam Exp $ */
+/*	$OpenBSD: hifn7751var.h,v 1.42 2002/04/08 17:49:42 jason Exp $	*/
+
+/*-
+ * Invertex AEON / Hifn 7751 driver
+ * Copyright (c) 1999 Invertex Inc. All rights reserved.
+ * Copyright (c) 1999 Theo de Raadt
+ * Copyright (c) 2000-2001 Network Security Technologies, Inc.
+ *			http://www.netsec.net
+ *
+ * Please send any comments, feedback, bug-fixes, or feature requests to
+ * software@invertex.com.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Effort sponsored in part by the Defense Advanced Research Projects
+ * Agency (DARPA) and Air Force Research Laboratory, Air Force
+ * Materiel Command, USAF, under agreement number F30602-01-2-0537.
+ *
+ */
+
+#ifndef __HIFN7751VAR_H__
+#define __HIFN7751VAR_H__
+
+#ifdef __KERNEL__
+
+/*
+ * Some configurable values for the driver.  By default command+result
+ * descriptor rings are the same size.  The src+dst descriptor rings
+ * are sized at 3.5x the number of potential commands.  Slower parts
+ * (e.g. 7951) tend to run out of src descriptors; faster parts (7811)
+ * src+cmd/result descriptors.  It's not clear that increasing the size
+ * of the descriptor rings helps performance significantly as other
+ * factors tend to come into play (e.g. copying misaligned packets).
+ */
+#define	HIFN_D_CMD_RSIZE	24	/* command descriptors */
+#define	HIFN_D_SRC_RSIZE	((HIFN_D_CMD_RSIZE * 7) / 2)	/* source descriptors */
+#define	HIFN_D_RES_RSIZE	HIFN_D_CMD_RSIZE	/* result descriptors */
+#define	HIFN_D_DST_RSIZE	HIFN_D_SRC_RSIZE	/* destination descriptors */
+
+/*
+ *  Length values for cryptography
+ */
+#define HIFN_DES_KEY_LENGTH		8
+#define HIFN_3DES_KEY_LENGTH		24
+#define HIFN_MAX_CRYPT_KEY_LENGTH	HIFN_3DES_KEY_LENGTH
+#define HIFN_IV_LENGTH			8
+#define	HIFN_AES_IV_LENGTH		16
+#define HIFN_MAX_IV_LENGTH		HIFN_AES_IV_LENGTH
+
+/*
+ *  Length values for authentication
+ */
+#define HIFN_MAC_KEY_LENGTH		64
+#define HIFN_MD5_LENGTH			16
+#define HIFN_SHA1_LENGTH		20
+#define HIFN_MAC_TRUNC_LENGTH		12
+
+#define MAX_SCATTER 64
+
+/*
+ * Data structure to hold all 4 rings and any other ring related data.
+ */
+struct hifn_dma {
+	/*
+	 *  Descriptor rings.  We add +1 to the size to accomidate the
+	 *  jump descriptor.
+	 */
+	struct hifn_desc	cmdr[HIFN_D_CMD_RSIZE+1];
+	struct hifn_desc	srcr[HIFN_D_SRC_RSIZE+1];
+	struct hifn_desc	dstr[HIFN_D_DST_RSIZE+1];
+	struct hifn_desc	resr[HIFN_D_RES_RSIZE+1];
+
+	struct hifn_command	*hifn_commands[HIFN_D_RES_RSIZE];
+
+	u_char			command_bufs[HIFN_D_CMD_RSIZE][HIFN_MAX_COMMAND];
+	u_char			result_bufs[HIFN_D_CMD_RSIZE][HIFN_MAX_RESULT];
+	u_int32_t		slop[HIFN_D_CMD_RSIZE];
+
+	u_int64_t		test_src, test_dst;
+
+	/*
+	 *  Our current positions for insertion and removal from the desriptor
+	 *  rings. 
+	 */
+	int			cmdi, srci, dsti, resi;
+	volatile int		cmdu, srcu, dstu, resu;
+	int			cmdk, srck, dstk, resk;
+};
+
+struct hifn_session {
+	int hs_used;
+	int hs_mlen;
+	u_int8_t hs_iv[HIFN_MAX_IV_LENGTH];
+};
+
+#define	HIFN_RING_SYNC(sc, r, i, f)					\
+	/* DAVIDM bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_dmamap, (f)) */
+
+#define	HIFN_CMDR_SYNC(sc, i, f)	HIFN_RING_SYNC((sc), cmdr, (i), (f))
+#define	HIFN_RESR_SYNC(sc, i, f)	HIFN_RING_SYNC((sc), resr, (i), (f))
+#define	HIFN_SRCR_SYNC(sc, i, f)	HIFN_RING_SYNC((sc), srcr, (i), (f))
+#define	HIFN_DSTR_SYNC(sc, i, f)	HIFN_RING_SYNC((sc), dstr, (i), (f))
+
+#define	HIFN_CMD_SYNC(sc, i, f)						\
+	/* DAVIDM bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_dmamap, (f)) */
+
+#define	HIFN_RES_SYNC(sc, i, f)						\
+	/* DAVIDM bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_dmamap, (f)) */
+
+typedef int bus_size_t;
+
+/*
+ * Holds data specific to a single HIFN board.
+ */
+struct hifn_softc {
+	softc_device_decl		 sc_dev;
+
+	struct pci_dev		*sc_pcidev;	/* PCI device pointer */
+	spinlock_t		sc_mtx;		/* per-instance lock */
+
+	int			sc_num;		/* for multiple devs */
+
+	ocf_iomem_t		sc_bar0;
+	bus_size_t		sc_bar0_lastreg;/* bar0 last reg written */
+	ocf_iomem_t		sc_bar1;
+	bus_size_t		sc_bar1_lastreg;/* bar1 last reg written */
+
+	int			sc_irq;
+
+	u_int32_t		sc_dmaier;
+	u_int32_t		sc_drammodel;	/* 1=dram, 0=sram */
+	u_int32_t		sc_pllconfig;	/* 7954/7955/7956 PLL config */
+
+	struct hifn_dma		*sc_dma;
+	dma_addr_t		sc_dma_physaddr;/* physical address of sc_dma */
+
+	int			sc_dmansegs;
+	int32_t			sc_cid;
+	int			sc_maxses;
+	int			sc_nsessions;
+	struct hifn_session	*sc_sessions;
+	int			sc_ramsize;
+	int			sc_flags;
+#define	HIFN_HAS_RNG		0x1	/* includes random number generator */
+#define	HIFN_HAS_PUBLIC		0x2	/* includes public key support */
+#define	HIFN_HAS_AES		0x4	/* includes AES support */
+#define	HIFN_IS_7811		0x8	/* Hifn 7811 part */
+#define	HIFN_IS_7956		0x10	/* Hifn 7956/7955 don't have SDRAM */
+
+	struct timer_list	sc_tickto;	/* for managing DMA */
+
+	int			sc_rngfirst;
+	int			sc_rnghz;	/* RNG polling frequency */
+
+	int			sc_c_busy;	/* command ring busy */
+	int			sc_s_busy;	/* source data ring busy */
+	int			sc_d_busy;	/* destination data ring busy */
+	int			sc_r_busy;	/* result ring busy */
+	int			sc_active;	/* for initial countdown */
+	int			sc_needwakeup;	/* ops q'd wating on resources */
+	int			sc_curbatch;	/* # ops submitted w/o int */
+	int			sc_suspended;
+#ifdef HIFN_VULCANDEV
+	struct cdev            *sc_pkdev;
+#endif
+};
+
+#define	HIFN_LOCK(_sc)		spin_lock_irqsave(&(_sc)->sc_mtx, l_flags)
+#define	HIFN_UNLOCK(_sc)	spin_unlock_irqrestore(&(_sc)->sc_mtx, l_flags)
+
+/*
+ *  hifn_command_t
+ *
+ *  This is the control structure used to pass commands to hifn_encrypt().
+ *
+ *  flags
+ *  -----
+ *  Flags is the bitwise "or" values for command configuration.  A single
+ *  encrypt direction needs to be set:
+ *
+ *	HIFN_ENCODE or HIFN_DECODE
+ *
+ *  To use cryptography, a single crypto algorithm must be included:
+ *
+ *	HIFN_CRYPT_3DES or HIFN_CRYPT_DES
+ *
+ *  To use authentication is used, a single MAC algorithm must be included:
+ *
+ *	HIFN_MAC_MD5 or HIFN_MAC_SHA1
+ *
+ *  By default MD5 uses a 16 byte hash and SHA-1 uses a 20 byte hash.
+ *  If the value below is set, hash values are truncated or assumed
+ *  truncated to 12 bytes:
+ *
+ *	HIFN_MAC_TRUNC
+ *
+ *  Keys for encryption and authentication can be sent as part of a command,
+ *  or the last key value used with a particular session can be retrieved
+ *  and used again if either of these flags are not specified.
+ *
+ *	HIFN_CRYPT_NEW_KEY, HIFN_MAC_NEW_KEY
+ *
+ *  session_num
+ *  -----------
+ *  A number between 0 and 2048 (for DRAM models) or a number between 
+ *  0 and 768 (for SRAM models).  Those who don't want to use session
+ *  numbers should leave value at zero and send a new crypt key and/or
+ *  new MAC key on every command.  If you use session numbers and
+ *  don't send a key with a command, the last key sent for that same
+ *  session number will be used.
+ *
+ *  Warning:  Using session numbers and multiboard at the same time
+ *            is currently broken.
+ *
+ *  mbuf
+ *  ----
+ *  Either fill in the mbuf pointer and npa=0 or
+ *	 fill packp[] and packl[] and set npa to > 0
+ * 
+ *  mac_header_skip
+ *  ---------------
+ *  The number of bytes of the source_buf that are skipped over before
+ *  authentication begins.  This must be a number between 0 and 2^16-1
+ *  and can be used by IPsec implementers to skip over IP headers.
+ *  *** Value ignored if authentication not used ***
+ *
+ *  crypt_header_skip
+ *  -----------------
+ *  The number of bytes of the source_buf that are skipped over before
+ *  the cryptographic operation begins.  This must be a number between 0
+ *  and 2^16-1.  For IPsec, this number will always be 8 bytes larger
+ *  than the auth_header_skip (to skip over the ESP header).
+ *  *** Value ignored if cryptography not used ***
+ *
+ */
+struct hifn_operand {
+	union {
+		struct sk_buff *skb;
+		struct uio *io;
+		unsigned char *buf;
+	} u;
+	void		*map;
+	bus_size_t	mapsize;
+	int		nsegs;
+	struct {
+	    dma_addr_t  ds_addr;
+	    int         ds_len;
+	} segs[MAX_SCATTER];
+};
+
+struct hifn_command {
+	u_int16_t session_num;
+	u_int16_t base_masks, cry_masks, mac_masks;
+	u_int8_t iv[HIFN_MAX_IV_LENGTH], *ck, mac[HIFN_MAC_KEY_LENGTH];
+	int cklen;
+	int sloplen, slopidx;
+
+	struct hifn_operand src;
+	struct hifn_operand dst;
+
+	struct hifn_softc *softc;
+	struct cryptop *crp;
+	struct cryptodesc *enccrd, *maccrd;
+};
+
+#define	src_skb		src.u.skb
+#define	src_io		src.u.io
+#define	src_map		src.map
+#define	src_mapsize	src.mapsize
+#define	src_segs	src.segs
+#define	src_nsegs	src.nsegs
+#define	src_buf		src.u.buf
+
+#define	dst_skb		dst.u.skb
+#define	dst_io		dst.u.io
+#define	dst_map		dst.map
+#define	dst_mapsize	dst.mapsize
+#define	dst_segs	dst.segs
+#define	dst_nsegs	dst.nsegs
+#define	dst_buf		dst.u.buf
+
+/*
+ *  Return values for hifn_crypto()
+ */
+#define HIFN_CRYPTO_SUCCESS	0
+#define HIFN_CRYPTO_BAD_INPUT	(-1)
+#define HIFN_CRYPTO_RINGS_FULL	(-2)
+
+/**************************************************************************
+ *
+ *  Function:  hifn_crypto
+ *
+ *  Purpose:   Called by external drivers to begin an encryption on the
+ *             HIFN board.
+ *
+ *  Blocking/Non-blocking Issues
+ *  ============================
+ *  The driver cannot block in hifn_crypto (no calls to tsleep) currently.
+ *  hifn_crypto() returns HIFN_CRYPTO_RINGS_FULL if there is not enough
+ *  room in any of the rings for the request to proceed.
+ *
+ *  Return Values
+ *  =============
+ *  0 for success, negative values on error
+ *
+ *  Defines for negative error codes are:
+ *  
+ *    HIFN_CRYPTO_BAD_INPUT  :  The passed in command had invalid settings.
+ *    HIFN_CRYPTO_RINGS_FULL :  All DMA rings were full and non-blocking
+ *                              behaviour was requested.
+ *
+ *************************************************************************/
+
+/*
+ * Convert back and forth from 'sid' to 'card' and 'session'
+ */
+#define HIFN_CARD(sid)		(((sid) & 0xf0000000) >> 28)
+#define HIFN_SESSION(sid)	((sid) & 0x000007ff)
+#define HIFN_SID(crd,ses)	(((crd) << 28) | ((ses) & 0x7ff))
+
+#endif /* _KERNEL */
+
+struct hifn_stats {
+	u_int64_t hst_ibytes;
+	u_int64_t hst_obytes;
+	u_int32_t hst_ipackets;
+	u_int32_t hst_opackets;
+	u_int32_t hst_invalid;
+	u_int32_t hst_nomem;		/* malloc or one of hst_nomem_* */
+	u_int32_t hst_abort;
+	u_int32_t hst_noirq;		/* IRQ for no reason */
+	u_int32_t hst_totbatch;		/* ops submitted w/o interrupt */
+	u_int32_t hst_maxbatch;		/* max ops submitted together */
+	u_int32_t hst_unaligned;	/* unaligned src caused copy */
+	/*
+	 * The following divides hst_nomem into more specific buckets.
+	 */
+	u_int32_t hst_nomem_map;	/* bus_dmamap_create failed */
+	u_int32_t hst_nomem_load;	/* bus_dmamap_load_* failed */
+	u_int32_t hst_nomem_mbuf;	/* MGET* failed */
+	u_int32_t hst_nomem_mcl;	/* MCLGET* failed */
+	u_int32_t hst_nomem_cr;		/* out of command/result descriptor */
+	u_int32_t hst_nomem_sd;		/* out of src/dst descriptors */
+};
+
+#endif /* __HIFN7751VAR_H__ */
diff -Nur linux-2.6.29.1.orig/crypto/ocf/hifn/hifnHIPP.c linux-2.6.29.1/crypto/ocf/hifn/hifnHIPP.c
--- linux-2.6.29.1.orig/crypto/ocf/hifn/hifnHIPP.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/hifn/hifnHIPP.c	2009-04-20 20:01:21.492555816 +0200
@@ -0,0 +1,420 @@
+/*-
+ * Driver for Hifn HIPP-I/II chipset
+ * Copyright (c) 2006 Michael Richardson <mcr@xelerance.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Effort sponsored by Hifn Inc.
+ *
+ */
+
+/*
+ * Driver for various Hifn encryption processors.
+ */
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/wait.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/random.h>
+#include <linux/version.h>
+#include <linux/skbuff.h>
+#include <linux/uio.h>
+#include <linux/sysfs.h>
+#include <linux/miscdevice.h>
+#include <asm/io.h>
+
+#include <cryptodev.h>
+
+#include "hifnHIPPreg.h"
+#include "hifnHIPPvar.h"
+
+#if 1
+#define	DPRINTF(a...)	if (hipp_debug) { \
+							printk("%s: ", sc ? \
+								device_get_nameunit(sc->sc_dev) : "hifn"); \
+							printk(a); \
+						} else
+#else
+#define	DPRINTF(a...)
+#endif
+
+typedef int bus_size_t;
+
+static inline int
+pci_get_revid(struct pci_dev *dev)
+{
+	u8 rid = 0;
+	pci_read_config_byte(dev, PCI_REVISION_ID, &rid);
+	return rid;
+}
+
+#define debug hipp_debug
+int hipp_debug = 0;
+module_param(hipp_debug, int, 0644);
+MODULE_PARM_DESC(hipp_debug, "Enable debug");
+
+int hipp_maxbatch = 1;
+module_param(hipp_maxbatch, int, 0644);
+MODULE_PARM_DESC(hipp_maxbatch, "max ops to batch w/o interrupt");
+
+static	int  hipp_probe(struct pci_dev *dev, const struct pci_device_id *ent);
+static	void hipp_remove(struct pci_dev *dev);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19)
+static irqreturn_t hipp_intr(int irq, void *arg);
+#else
+static irqreturn_t hipp_intr(int irq, void *arg, struct pt_regs *regs);
+#endif
+
+static int hipp_num_chips = 0;
+static struct hipp_softc *hipp_chip_idx[HIPP_MAX_CHIPS];
+
+static	int hipp_newsession(device_t, u_int32_t *, struct cryptoini *);
+static	int hipp_freesession(device_t, u_int64_t);
+static	int hipp_process(device_t, struct cryptop *, int);
+
+static device_method_t hipp_methods = {
+	/* crypto device methods */
+	DEVMETHOD(cryptodev_newsession,	hipp_newsession),
+	DEVMETHOD(cryptodev_freesession,hipp_freesession),
+	DEVMETHOD(cryptodev_process,	hipp_process),
+};
+
+static __inline u_int32_t
+READ_REG(struct hipp_softc *sc, unsigned int barno, bus_size_t reg)
+{
+	u_int32_t v = readl(sc->sc_bar[barno] + reg);
+	//sc->sc_bar0_lastreg = (bus_size_t) -1;
+	return (v);
+}
+static __inline void
+WRITE_REG(struct hipp_softc *sc, unsigned int barno, bus_size_t reg, u_int32_t val)
+{
+	writel(val, sc->sc_bar[barno] + reg);
+}
+
+#define READ_REG_0(sc, reg)         READ_REG(sc, 0, reg)
+#define WRITE_REG_0(sc, reg, val)   WRITE_REG(sc,0, reg, val)
+#define READ_REG_1(sc, reg)         READ_REG(sc, 1, reg)
+#define WRITE_REG_1(sc, reg, val)   WRITE_REG(sc,1, reg, val)
+
+static int
+hipp_newsession(device_t dev, u_int32_t *sidp, struct cryptoini *cri)
+{
+	return EINVAL;
+}
+
+static int
+hipp_freesession(device_t dev, u_int64_t tid)
+{
+	return EINVAL;
+}
+
+static int
+hipp_process(device_t dev, struct cryptop *crp, int hint)
+{
+	return EINVAL;
+}
+
+static const char*
+hipp_partname(struct hipp_softc *sc, char buf[128], size_t blen)
+{
+	char *n = NULL;
+
+	switch (pci_get_vendor(sc->sc_pcidev)) {
+	case PCI_VENDOR_HIFN:
+		switch (pci_get_device(sc->sc_pcidev)) {
+		case PCI_PRODUCT_HIFN_7855:	n = "Hifn 7855";
+		case PCI_PRODUCT_HIFN_8155:	n = "Hifn 8155";
+		case PCI_PRODUCT_HIFN_6500:	n = "Hifn 6500";
+		}
+	}
+
+	if(n==NULL) {
+		snprintf(buf, blen, "VID=%02x,PID=%02x",
+			 pci_get_vendor(sc->sc_pcidev),
+			 pci_get_device(sc->sc_pcidev));
+	} else {
+		buf[0]='\0';
+		strncat(buf, n, blen);
+	}
+	return buf;
+}
+
+struct hipp_fs_entry {
+	struct attribute attr;
+	/* other stuff */
+};
+
+
+static ssize_t
+cryptoid_show(struct device *dev,
+	      struct device_attribute *attr,
+	      char *buf)						
+{								
+	struct hipp_softc *sc;					
+
+	sc = pci_get_drvdata(to_pci_dev (dev));
+	return sprintf (buf, "%d\n", sc->sc_cid);
+}
+
+struct device_attribute hipp_dev_cryptoid = __ATTR_RO(cryptoid);
+
+/*
+ * Attach an interface that successfully probed.
+ */
+static int
+hipp_probe(struct pci_dev *dev, const struct pci_device_id *ent)
+{
+	struct hipp_softc *sc = NULL;
+	int i;
+	//char rbase;
+	//u_int16_t ena;
+	int rev;
+	//int rseg;
+	int rc;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	if (pci_enable_device(dev) < 0)
+		return(-ENODEV);
+
+	if (pci_set_mwi(dev))
+		return(-ENODEV);
+
+	if (!dev->irq) {
+		printk("hifn: found device with no IRQ assigned. check BIOS settings!");
+		pci_disable_device(dev);
+		return(-ENODEV);
+	}
+
+	sc = (struct hipp_softc *) kmalloc(sizeof(*sc), GFP_KERNEL);
+	if (!sc)
+		return(-ENOMEM);
+	memset(sc, 0, sizeof(*sc));
+
+	softc_device_init(sc, "hifn-hipp", hipp_num_chips, hipp_methods);
+
+	sc->sc_pcidev = dev;
+	sc->sc_irq = -1;
+	sc->sc_cid = -1;
+	sc->sc_num = hipp_num_chips++;
+
+	if (sc->sc_num < HIPP_MAX_CHIPS)
+		hipp_chip_idx[sc->sc_num] = sc;
+
+	pci_set_drvdata(sc->sc_pcidev, sc);
+
+	spin_lock_init(&sc->sc_mtx);
+
+	/*
+	 * Setup PCI resources.
+	 * The READ_REG_0, WRITE_REG_0, READ_REG_1,
+	 * and WRITE_REG_1 macros throughout the driver are used
+	 * to permit better debugging.
+	 */
+	for(i=0; i<4; i++) {
+		unsigned long mem_start, mem_len;
+		mem_start = pci_resource_start(sc->sc_pcidev, i);
+		mem_len   = pci_resource_len(sc->sc_pcidev, i);
+		sc->sc_barphy[i] = (caddr_t)mem_start;
+		sc->sc_bar[i] = (ocf_iomem_t) ioremap(mem_start, mem_len);
+		if (!sc->sc_bar[i]) {
+			device_printf(sc->sc_dev, "cannot map bar%d register space\n", i);
+			goto fail;
+		}
+	}
+
+	//hipp_reset_board(sc, 0);
+	pci_set_master(sc->sc_pcidev);
+
+	/*
+	 * Arrange the interrupt line.
+	 */
+	rc = request_irq(dev->irq, hipp_intr, IRQF_SHARED, "hifn", sc);
+	if (rc) {
+		device_printf(sc->sc_dev, "could not map interrupt: %d\n", rc);
+		goto fail;
+	}
+	sc->sc_irq = dev->irq;
+
+	rev = READ_REG_1(sc, HIPP_1_REVID) & 0xffff;
+
+	{
+		char b[32];
+		device_printf(sc->sc_dev, "%s, rev %u",
+			      hipp_partname(sc, b, sizeof(b)), rev);
+	}
+
+#if 0
+	if (sc->sc_flags & HIFN_IS_7956)
+		printf(", pll=0x%x<%s clk, %ux mult>",
+			sc->sc_pllconfig,
+			sc->sc_pllconfig & HIFN_PLL_REF_SEL ? "ext" : "pci",
+			2 + 2*((sc->sc_pllconfig & HIFN_PLL_ND) >> 11));
+#endif
+	printf("\n");
+
+	sc->sc_cid = crypto_get_driverid(softc_get_device(sc),CRYPTOCAP_F_HARDWARE);
+	if (sc->sc_cid < 0) {
+		device_printf(sc->sc_dev, "could not get crypto driver id\n");
+		goto fail;
+	}
+
+#if 0 /* cannot work with a non-GPL module */
+	/* make a sysfs entry to let the world know what entry we got */
+	sysfs_create_file(&sc->sc_pcidev->dev.kobj, &hipp_dev_cryptoid.attr);
+#endif
+
+#if 0
+	init_timer(&sc->sc_tickto);
+	sc->sc_tickto.function = hifn_tick;
+	sc->sc_tickto.data = (unsigned long) sc->sc_num;
+	mod_timer(&sc->sc_tickto, jiffies + HZ);
+#endif
+
+#if 0 /* no code here yet ?? */
+	crypto_register(sc->sc_cid, CRYPTO_3DES_CBC, 0, 0);
+#endif
+
+	return (0);
+
+fail:
+	if (sc->sc_cid >= 0)
+		crypto_unregister_all(sc->sc_cid);
+	if (sc->sc_irq != -1)
+		free_irq(sc->sc_irq, sc);
+	
+#if 0
+	if (sc->sc_dma) {
+		/* Turn off DMA polling */
+		WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET |
+			    HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE);
+		
+		pci_free_consistent(sc->sc_pcidev,
+				    sizeof(*sc->sc_dma),
+				    sc->sc_dma, sc->sc_dma_physaddr);
+	}
+#endif
+	kfree(sc);
+	return (-ENXIO);
+}
+
+/*
+ * Detach an interface that successfully probed.
+ */
+static void
+hipp_remove(struct pci_dev *dev)
+{
+	struct hipp_softc *sc = pci_get_drvdata(dev);
+	unsigned long l_flags;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	/* disable interrupts */
+	HIPP_LOCK(sc);
+
+#if 0
+	WRITE_REG_1(sc, HIFN_1_DMA_IER, 0);
+	HIFN_UNLOCK(sc);
+
+	/*XXX other resources */
+	del_timer_sync(&sc->sc_tickto);
+
+	/* Turn off DMA polling */
+	WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET |
+	    HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE);
+#endif
+
+	crypto_unregister_all(sc->sc_cid);
+
+	free_irq(sc->sc_irq, sc);
+
+#if 0
+	pci_free_consistent(sc->sc_pcidev, sizeof(*sc->sc_dma),
+                sc->sc_dma, sc->sc_dma_physaddr);
+#endif
+}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19)
+static irqreturn_t hipp_intr(int irq, void *arg)
+#else
+static irqreturn_t hipp_intr(int irq, void *arg, struct pt_regs *regs)
+#endif
+{
+	struct hipp_softc *sc = arg;
+
+	sc = sc; /* shut up compiler */
+
+	return IRQ_HANDLED;
+}
+
+static struct pci_device_id hipp_pci_tbl[] = {
+	{ PCI_VENDOR_HIFN, PCI_PRODUCT_HIFN_7855,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
+	{ PCI_VENDOR_HIFN, PCI_PRODUCT_HIFN_8155,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
+};
+MODULE_DEVICE_TABLE(pci, hipp_pci_tbl);
+
+static struct pci_driver hipp_driver = {
+	.name         = "hipp",
+	.id_table     = hipp_pci_tbl,
+	.probe        =	hipp_probe,
+	.remove       = hipp_remove,
+	/* add PM stuff here one day */
+};
+
+static int __init hipp_init (void)
+{
+	struct hipp_softc *sc = NULL;
+	int rc;
+
+	DPRINTF("%s(%p)\n", __FUNCTION__, hipp_init);
+
+	rc = pci_register_driver(&hipp_driver);
+	pci_register_driver_compat(&hipp_driver, rc);
+
+	return rc;
+}
+
+static void __exit hipp_exit (void)
+{
+	pci_unregister_driver(&hipp_driver);
+}
+
+module_init(hipp_init);
+module_exit(hipp_exit);
+
+MODULE_LICENSE("BSD");
+MODULE_AUTHOR("Michael Richardson <mcr@xelerance.com>");
+MODULE_DESCRIPTION("OCF driver for hifn HIPP-I/II PCI crypto devices");
diff -Nur linux-2.6.29.1.orig/crypto/ocf/hifn/hifnHIPPreg.h linux-2.6.29.1/crypto/ocf/hifn/hifnHIPPreg.h
--- linux-2.6.29.1.orig/crypto/ocf/hifn/hifnHIPPreg.h	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/hifn/hifnHIPPreg.h	2009-04-20 20:01:21.516556358 +0200
@@ -0,0 +1,46 @@
+/*-
+ * Hifn HIPP-I/HIPP-II (7855/8155) driver.
+ * Copyright (c) 2006 Michael Richardson <mcr@xelerance.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Effort sponsored by Hifn inc.
+ *
+ */
+
+#ifndef __HIFNHIPP_H__
+#define	__HIFNHIPP_H__
+
+/*
+ * PCI vendor and device identifiers
+ */
+#define	PCI_VENDOR_HIFN		0x13a3		/* Hifn */
+#define	PCI_PRODUCT_HIFN_6500	0x0006		/* 6500 */
+#define	PCI_PRODUCT_HIFN_7855	0x001f		/* 7855 */
+#define	PCI_PRODUCT_HIFN_8155	0x999		/* XXX 8155 */
+
+#define HIPP_1_REVID            0x01 /* BOGUS */
+
+#endif /* __HIPP_H__ */
diff -Nur linux-2.6.29.1.orig/crypto/ocf/hifn/hifnHIPPvar.h linux-2.6.29.1/crypto/ocf/hifn/hifnHIPPvar.h
--- linux-2.6.29.1.orig/crypto/ocf/hifn/hifnHIPPvar.h	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/hifn/hifnHIPPvar.h	2009-04-20 20:01:21.516556358 +0200
@@ -0,0 +1,93 @@
+/*
+ * Hifn HIPP-I/HIPP-II (7855/8155) driver.
+ * Copyright (c) 2006 Michael Richardson <mcr@xelerance.com> * 
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Effort sponsored by Hifn inc.
+ *
+ */
+
+#ifndef __HIFNHIPPVAR_H__
+#define __HIFNHIPPVAR_H__
+
+#define HIPP_MAX_CHIPS 8
+
+/*
+ * Holds data specific to a single Hifn HIPP-I board.
+ */
+struct hipp_softc {
+	softc_device_decl		 sc_dev;
+
+	struct pci_dev		*sc_pcidev;	/* device backpointer */
+	ocf_iomem_t             sc_bar[5];
+	caddr_t		        sc_barphy[5];   /* physical address */
+	int			sc_num;		/* for multiple devs */
+	spinlock_t		sc_mtx;		/* per-instance lock */
+	int32_t			sc_cid;
+	int			sc_irq;
+
+#if 0
+
+	u_int32_t		sc_dmaier;
+	u_int32_t		sc_drammodel;	/* 1=dram, 0=sram */
+	u_int32_t		sc_pllconfig;	/* 7954/7955/7956 PLL config */
+
+	struct hifn_dma		*sc_dma;
+	dma_addr_t		sc_dma_physaddr;/* physical address of sc_dma */
+
+	int			sc_dmansegs;
+	int			sc_maxses;
+	int			sc_nsessions;
+	struct hifn_session	*sc_sessions;
+	int			sc_ramsize;
+	int			sc_flags;
+#define	HIFN_HAS_RNG		0x1	/* includes random number generator */
+#define	HIFN_HAS_PUBLIC		0x2	/* includes public key support */
+#define	HIFN_HAS_AES		0x4	/* includes AES support */
+#define	HIFN_IS_7811		0x8	/* Hifn 7811 part */
+#define	HIFN_IS_7956		0x10	/* Hifn 7956/7955 don't have SDRAM */
+
+	struct timer_list	sc_tickto;	/* for managing DMA */
+
+	int			sc_rngfirst;
+	int			sc_rnghz;	/* RNG polling frequency */
+
+	int			sc_c_busy;	/* command ring busy */
+	int			sc_s_busy;	/* source data ring busy */
+	int			sc_d_busy;	/* destination data ring busy */
+	int			sc_r_busy;	/* result ring busy */
+	int			sc_active;	/* for initial countdown */
+	int			sc_needwakeup;	/* ops q'd wating on resources */
+	int			sc_curbatch;	/* # ops submitted w/o int */
+	int			sc_suspended;
+	struct miscdevice       sc_miscdev;
+#endif
+};
+
+#define	HIPP_LOCK(_sc)		spin_lock_irqsave(&(_sc)->sc_mtx, l_flags)
+#define	HIPP_UNLOCK(_sc)	spin_unlock_irqrestore(&(_sc)->sc_mtx, l_flags)
+
+#endif /* __HIFNHIPPVAR_H__ */
diff -Nur linux-2.6.29.1.orig/crypto/ocf/ixp4xx/Makefile linux-2.6.29.1/crypto/ocf/ixp4xx/Makefile
--- linux-2.6.29.1.orig/crypto/ocf/ixp4xx/Makefile	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/ixp4xx/Makefile	2009-04-20 20:01:21.520556868 +0200
@@ -0,0 +1,104 @@
+# for SGlinux builds
+-include $(ROOTDIR)/modules/.config
+
+#
+# You will need to point this at your Intel ixp425 includes,  this portion
+# of the Makefile only really works under SGLinux with the appropriate libs
+# installed.  They can be downloaded from http://www.snapgear.org/
+#
+ifeq ($(CONFIG_CPU_IXP46X),y)
+IXPLATFORM = ixp46X
+else
+ifeq ($(CONFIG_CPU_IXP43X),y)
+IXPLATFORM = ixp43X
+else
+IXPLATFORM = ixp42X
+endif
+endif
+
+ifdef CONFIG_IXP400_LIB_2_4
+IX_XSCALE_SW = $(ROOTDIR)/modules/ixp425/ixp400-2.4/ixp400_xscale_sw
+OSAL_DIR     = $(ROOTDIR)/modules/ixp425/ixp400-2.4/ixp_osal
+endif
+ifdef CONFIG_IXP400_LIB_2_1
+IX_XSCALE_SW = $(ROOTDIR)/modules/ixp425/ixp400-2.1/ixp400_xscale_sw
+OSAL_DIR     = $(ROOTDIR)/modules/ixp425/ixp400-2.1/ixp_osal
+endif
+ifdef CONFIG_IXP400_LIB_2_0
+IX_XSCALE_SW = $(ROOTDIR)/modules/ixp425/ixp400-2.0/ixp400_xscale_sw
+OSAL_DIR     = $(ROOTDIR)/modules/ixp425/ixp400-2.0/ixp_osal
+endif
+ifdef IX_XSCALE_SW
+ifdef CONFIG_IXP400_LIB_2_4
+IXP_CFLAGS = \
+	-I$(ROOTDIR)/. \
+	-I$(IX_XSCALE_SW)/src/include \
+	-I$(OSAL_DIR)/common/include/ \
+	-I$(OSAL_DIR)/common/include/modules/ \
+	-I$(OSAL_DIR)/common/include/modules/ddk/ \
+	-I$(OSAL_DIR)/common/include/modules/bufferMgt/ \
+	-I$(OSAL_DIR)/common/include/modules/ioMem/ \
+	-I$(OSAL_DIR)/common/os/linux/include/ \
+	-I$(OSAL_DIR)/common/os/linux/include/core/  \
+	-I$(OSAL_DIR)/common/os/linux/include/modules/ \
+	-I$(OSAL_DIR)/common/os/linux/include/modules/ddk/ \
+	-I$(OSAL_DIR)/common/os/linux/include/modules/bufferMgt/ \
+	-I$(OSAL_DIR)/common/os/linux/include/modules/ioMem/ \
+	-I$(OSAL_DIR)/platforms/$(IXPLATFORM)/include/ \
+	-I$(OSAL_DIR)/platforms/$(IXPLATFORM)/os/linux/include/ \
+	-DENABLE_IOMEM -DENABLE_BUFFERMGT -DENABLE_DDK \
+	-DUSE_IXP4XX_CRYPTO
+else
+IXP_CFLAGS = \
+	-I$(ROOTDIR)/. \
+	-I$(IX_XSCALE_SW)/src/include \
+	-I$(OSAL_DIR)/ \
+	-I$(OSAL_DIR)/os/linux/include/ \
+	-I$(OSAL_DIR)/os/linux/include/modules/ \
+	-I$(OSAL_DIR)/os/linux/include/modules/ioMem/ \
+	-I$(OSAL_DIR)/os/linux/include/modules/bufferMgt/ \
+	-I$(OSAL_DIR)/os/linux/include/core/  \
+	-I$(OSAL_DIR)/os/linux/include/platforms/ \
+	-I$(OSAL_DIR)/os/linux/include/platforms/ixp400/ \
+	-I$(OSAL_DIR)/os/linux/include/platforms/ixp400/ixp425 \
+	-I$(OSAL_DIR)/os/linux/include/platforms/ixp400/ixp465 \
+	-I$(OSAL_DIR)/os/linux/include/core/ \
+	-I$(OSAL_DIR)/include/ \
+	-I$(OSAL_DIR)/include/modules/ \
+	-I$(OSAL_DIR)/include/modules/bufferMgt/ \
+	-I$(OSAL_DIR)/include/modules/ioMem/ \
+	-I$(OSAL_DIR)/include/platforms/ \
+	-I$(OSAL_DIR)/include/platforms/ixp400/ \
+	-DUSE_IXP4XX_CRYPTO
+endif
+endif
+ifdef CONFIG_IXP400_LIB_1_4
+IXP_CFLAGS   = \
+	-I$(ROOTDIR)/. \
+	-I$(ROOTDIR)/modules/ixp425/ixp400-1.4/ixp400_xscale_sw/src/include \
+	-I$(ROOTDIR)/modules/ixp425/ixp400-1.4/ixp400_xscale_sw/src/linux \
+	-DUSE_IXP4XX_CRYPTO
+endif
+ifndef IXPDIR
+IXPDIR = ixp-version-is-not-supported
+endif
+
+ifeq ($(CONFIG_CPU_IXP46X),y)
+IXP_CFLAGS += -D__ixp46X
+else
+ifeq ($(CONFIG_CPU_IXP43X),y)
+IXP_CFLAGS += -D__ixp43X
+else
+IXP_CFLAGS += -D__ixp42X
+endif
+endif
+
+obj-$(CONFIG_OCF_IXP4XX) += ixp4xx.o
+
+obj ?= .
+EXTRA_CFLAGS += $(IXP_CFLAGS) -I$(obj)/.. -I$(obj)/.
+
+ifdef TOPDIR
+-include $(TOPDIR)/Rules.make
+endif
+
diff -Nur linux-2.6.29.1.orig/crypto/ocf/ixp4xx/ixp4xx.c linux-2.6.29.1/crypto/ocf/ixp4xx/ixp4xx.c
--- linux-2.6.29.1.orig/crypto/ocf/ixp4xx/ixp4xx.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/ixp4xx/ixp4xx.c	2009-04-20 20:01:21.520556868 +0200
@@ -0,0 +1,1328 @@
+/*
+ * An OCF module that uses Intels IXP CryptACC API to do the crypto.
+ * This driver requires the IXP400 Access Library that is available
+ * from Intel in order to operate (or compile).
+ *
+ * Written by David McCullough <david_mccullough@securecomputing.com>
+ * Copyright (C) 2006-2007 David McCullough
+ * Copyright (C) 2004-2005 Intel Corporation.
+ *
+ * LICENSE TERMS
+ *
+ * The free distribution and use of this software in both source and binary
+ * form is allowed (with or without changes) provided that:
+ *
+ *   1. distributions of this source code include the above copyright
+ *      notice, this list of conditions and the following disclaimer;
+ *
+ *   2. distributions in binary form include the above copyright
+ *      notice, this list of conditions and the following disclaimer
+ *      in the documentation and/or other associated materials;
+ *
+ *   3. the copyright holder's name is not used to endorse products
+ *      built using this software without specific written permission.
+ *
+ * ALTERNATIVELY, provided that this notice is retained in full, this product
+ * may be distributed under the terms of the GNU General Public License (GPL),
+ * in which case the provisions of the GPL apply INSTEAD OF those given above.
+ *
+ * DISCLAIMER
+ *
+ * This software is provided 'as is' with no explicit or implied warranties
+ * in respect of its properties, including, but not limited to, correctness
+ * and/or fitness for purpose.
+ */
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/wait.h>
+#include <linux/crypto.h>
+#include <linux/interrupt.h>
+#include <asm/scatterlist.h>
+
+#include <IxTypes.h>
+#include <IxOsBuffMgt.h>
+#include <IxNpeDl.h>
+#include <IxCryptoAcc.h>
+#include <IxQMgr.h>
+#include <IxOsServices.h>
+#include <IxOsCacheMMU.h>
+
+#include <cryptodev.h>
+#include <uio.h>
+
+#ifndef IX_MBUF_PRIV
+#define IX_MBUF_PRIV(x) ((x)->priv)
+#endif
+
+struct ixp_data;
+
+struct ixp_q {
+	struct list_head	 ixp_q_list;
+	struct ixp_data		*ixp_q_data;
+	struct cryptop		*ixp_q_crp;
+	struct cryptodesc	*ixp_q_ccrd;
+	struct cryptodesc	*ixp_q_acrd;
+	IX_MBUF				 ixp_q_mbuf;
+	UINT8				*ixp_hash_dest; /* Location for hash in client buffer */
+	UINT8				*ixp_hash_src; /* Location of hash in internal buffer */
+	unsigned char		 ixp_q_iv_data[IX_CRYPTO_ACC_MAX_CIPHER_IV_LENGTH];
+	unsigned char		*ixp_q_iv;
+};
+
+struct ixp_data {
+	int					 ixp_registered;	/* is the context registered */
+	int					 ixp_crd_flags;		/* detect direction changes */
+
+	int					 ixp_cipher_alg;
+	int					 ixp_auth_alg;
+
+	UINT32				 ixp_ctx_id;
+	UINT32				 ixp_hash_key_id;	/* used when hashing */
+	IxCryptoAccCtx		 ixp_ctx;
+	IX_MBUF				 ixp_pri_mbuf;
+	IX_MBUF				 ixp_sec_mbuf;
+
+	struct work_struct   ixp_pending_work;
+	struct work_struct   ixp_registration_work;
+	struct list_head	 ixp_q;				/* unprocessed requests */
+};
+
+#ifdef __ixp46X
+
+#define	MAX_IOP_SIZE	64	/* words */
+#define	MAX_OOP_SIZE	128
+
+#define	MAX_PARAMS		3
+
+struct ixp_pkq {
+	struct list_head			 pkq_list;
+	struct cryptkop				*pkq_krp;
+
+	IxCryptoAccPkeEauInOperands	 pkq_op;
+	IxCryptoAccPkeEauOpResult	 pkq_result;
+
+	UINT32						 pkq_ibuf0[MAX_IOP_SIZE];
+	UINT32						 pkq_ibuf1[MAX_IOP_SIZE];
+	UINT32						 pkq_ibuf2[MAX_IOP_SIZE];
+	UINT32						 pkq_obuf[MAX_OOP_SIZE];
+};
+
+static LIST_HEAD(ixp_pkq); /* current PK wait list */
+static struct ixp_pkq *ixp_pk_cur;
+static spinlock_t ixp_pkq_lock;
+
+#endif /* __ixp46X */
+
+static int ixp_blocked = 0;
+
+static int32_t			 ixp_id = -1;
+static struct ixp_data **ixp_sessions = NULL;
+static u_int32_t		 ixp_sesnum = 0;
+
+static int ixp_process(device_t, struct cryptop *, int);
+static int ixp_newsession(device_t, u_int32_t *, struct cryptoini *);
+static int ixp_freesession(device_t, u_int64_t);
+#ifdef __ixp46X
+static int ixp_kprocess(device_t, struct cryptkop *krp, int hint);
+#endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
+static kmem_cache_t *qcache;
+#else
+static struct kmem_cache *qcache;
+#endif
+
+#define debug ixp_debug
+static int ixp_debug = 0;
+module_param(ixp_debug, int, 0644);
+MODULE_PARM_DESC(ixp_debug, "Enable debug");
+
+static int ixp_init_crypto = 1;
+module_param(ixp_init_crypto, int, 0444); /* RO after load/boot */
+MODULE_PARM_DESC(ixp_init_crypto, "Call ixCryptoAccInit (default is 1)");
+
+static void ixp_process_pending(void *arg);
+static void ixp_registration(void *arg);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+static void ixp_process_pending_wq(struct work_struct *work);
+static void ixp_registration_wq(struct work_struct *work);
+#endif
+
+/*
+ * dummy device structure
+ */
+
+static struct {
+	softc_device_decl	sc_dev;
+} ixpdev;
+
+static device_method_t ixp_methods = {
+	/* crypto device methods */
+	DEVMETHOD(cryptodev_newsession,	ixp_newsession),
+	DEVMETHOD(cryptodev_freesession,ixp_freesession),
+	DEVMETHOD(cryptodev_process,	ixp_process),
+#ifdef __ixp46X
+	DEVMETHOD(cryptodev_kprocess,	ixp_kprocess),
+#endif
+};
+
+/*
+ * Generate a new software session.
+ */
+static int
+ixp_newsession(device_t dev, u_int32_t *sid, struct cryptoini *cri)
+{
+	struct ixp_data *ixp;
+	u_int32_t i;
+#define AUTH_LEN(cri, def) \
+	(cri->cri_mlen ? cri->cri_mlen : (def))
+
+	dprintk("%s():alg %d\n", __FUNCTION__,cri->cri_alg);
+	if (sid == NULL || cri == NULL) {
+		dprintk("%s,%d - EINVAL\n", __FILE__, __LINE__);
+		return EINVAL;
+	}
+
+	if (ixp_sessions) {
+		for (i = 1; i < ixp_sesnum; i++)
+			if (ixp_sessions[i] == NULL)
+				break;
+	} else
+		i = 1;		/* NB: to silence compiler warning */
+
+	if (ixp_sessions == NULL || i == ixp_sesnum) {
+		struct ixp_data **ixpd;
+
+		if (ixp_sessions == NULL) {
+			i = 1; /* We leave ixp_sessions[0] empty */
+			ixp_sesnum = CRYPTO_SW_SESSIONS;
+		} else
+			ixp_sesnum *= 2;
+
+		ixpd = kmalloc(ixp_sesnum * sizeof(struct ixp_data *), SLAB_ATOMIC);
+		if (ixpd == NULL) {
+			/* Reset session number */
+			if (ixp_sesnum == CRYPTO_SW_SESSIONS)
+				ixp_sesnum = 0;
+			else
+				ixp_sesnum /= 2;
+			dprintk("%s,%d: ENOBUFS\n", __FILE__, __LINE__);
+			return ENOBUFS;
+		}
+		memset(ixpd, 0, ixp_sesnum * sizeof(struct ixp_data *));
+
+		/* Copy existing sessions */
+		if (ixp_sessions) {
+			memcpy(ixpd, ixp_sessions,
+			    (ixp_sesnum / 2) * sizeof(struct ixp_data *));
+			kfree(ixp_sessions);
+		}
+
+		ixp_sessions = ixpd;
+	}
+
+	ixp_sessions[i] = (struct ixp_data *) kmalloc(sizeof(struct ixp_data),
+			SLAB_ATOMIC);
+	if (ixp_sessions[i] == NULL) {
+		ixp_freesession(NULL, i);
+		dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
+		return ENOBUFS;
+	}
+
+	*sid = i;
+
+	ixp = ixp_sessions[i];
+	memset(ixp, 0, sizeof(*ixp));
+
+	ixp->ixp_cipher_alg = -1;
+	ixp->ixp_auth_alg = -1;
+	ixp->ixp_ctx_id = -1;
+	INIT_LIST_HEAD(&ixp->ixp_q);
+
+	ixp->ixp_ctx.useDifferentSrcAndDestMbufs = 0;
+
+	while (cri) {
+		switch (cri->cri_alg) {
+		case CRYPTO_DES_CBC:
+			ixp->ixp_cipher_alg = cri->cri_alg;
+			ixp->ixp_ctx.cipherCtx.cipherAlgo = IX_CRYPTO_ACC_CIPHER_DES;
+			ixp->ixp_ctx.cipherCtx.cipherMode = IX_CRYPTO_ACC_MODE_CBC;
+			ixp->ixp_ctx.cipherCtx.cipherKeyLen = (cri->cri_klen + 7) / 8;
+			ixp->ixp_ctx.cipherCtx.cipherBlockLen = IX_CRYPTO_ACC_DES_BLOCK_64;
+			ixp->ixp_ctx.cipherCtx.cipherInitialVectorLen =
+						IX_CRYPTO_ACC_DES_IV_64;
+			memcpy(ixp->ixp_ctx.cipherCtx.key.cipherKey,
+					cri->cri_key, (cri->cri_klen + 7) / 8);
+			break;
+
+		case CRYPTO_3DES_CBC:
+			ixp->ixp_cipher_alg = cri->cri_alg;
+			ixp->ixp_ctx.cipherCtx.cipherAlgo = IX_CRYPTO_ACC_CIPHER_3DES;
+			ixp->ixp_ctx.cipherCtx.cipherMode = IX_CRYPTO_ACC_MODE_CBC;
+			ixp->ixp_ctx.cipherCtx.cipherKeyLen = (cri->cri_klen + 7) / 8;
+			ixp->ixp_ctx.cipherCtx.cipherBlockLen = IX_CRYPTO_ACC_DES_BLOCK_64;
+			ixp->ixp_ctx.cipherCtx.cipherInitialVectorLen =
+						IX_CRYPTO_ACC_DES_IV_64;
+			memcpy(ixp->ixp_ctx.cipherCtx.key.cipherKey,
+					cri->cri_key, (cri->cri_klen + 7) / 8);
+			break;
+
+		case CRYPTO_RIJNDAEL128_CBC:
+			ixp->ixp_cipher_alg = cri->cri_alg;
+			ixp->ixp_ctx.cipherCtx.cipherAlgo = IX_CRYPTO_ACC_CIPHER_AES;
+			ixp->ixp_ctx.cipherCtx.cipherMode = IX_CRYPTO_ACC_MODE_CBC;
+			ixp->ixp_ctx.cipherCtx.cipherKeyLen = (cri->cri_klen + 7) / 8;
+			ixp->ixp_ctx.cipherCtx.cipherBlockLen = 16;
+			ixp->ixp_ctx.cipherCtx.cipherInitialVectorLen = 16;
+			memcpy(ixp->ixp_ctx.cipherCtx.key.cipherKey,
+					cri->cri_key, (cri->cri_klen + 7) / 8);
+			break;
+
+		case CRYPTO_MD5:
+		case CRYPTO_MD5_HMAC:
+			ixp->ixp_auth_alg = cri->cri_alg;
+			ixp->ixp_ctx.authCtx.authAlgo = IX_CRYPTO_ACC_AUTH_MD5;
+			ixp->ixp_ctx.authCtx.authDigestLen = AUTH_LEN(cri, MD5_HASH_LEN);
+			ixp->ixp_ctx.authCtx.aadLen = 0;
+			/* Only MD5_HMAC needs a key */
+			if (cri->cri_alg == CRYPTO_MD5_HMAC) {
+				ixp->ixp_ctx.authCtx.authKeyLen = (cri->cri_klen + 7) / 8;
+				if (ixp->ixp_ctx.authCtx.authKeyLen >
+						sizeof(ixp->ixp_ctx.authCtx.key.authKey)) {
+					printk(
+						"ixp4xx: Invalid key length for MD5_HMAC - %d bits\n",
+							cri->cri_klen);
+					ixp_freesession(NULL, i);
+					return EINVAL;
+				}
+				memcpy(ixp->ixp_ctx.authCtx.key.authKey,
+						cri->cri_key, (cri->cri_klen + 7) / 8);
+			}
+			break;
+
+		case CRYPTO_SHA1:
+		case CRYPTO_SHA1_HMAC:
+			ixp->ixp_auth_alg = cri->cri_alg;
+			ixp->ixp_ctx.authCtx.authAlgo = IX_CRYPTO_ACC_AUTH_SHA1;
+			ixp->ixp_ctx.authCtx.authDigestLen = AUTH_LEN(cri, SHA1_HASH_LEN);
+			ixp->ixp_ctx.authCtx.aadLen = 0;
+			/* Only SHA1_HMAC needs a key */
+			if (cri->cri_alg == CRYPTO_SHA1_HMAC) {
+				ixp->ixp_ctx.authCtx.authKeyLen = (cri->cri_klen + 7) / 8;
+				if (ixp->ixp_ctx.authCtx.authKeyLen >
+						sizeof(ixp->ixp_ctx.authCtx.key.authKey)) {
+					printk(
+						"ixp4xx: Invalid key length for SHA1_HMAC - %d bits\n",
+							cri->cri_klen);
+					ixp_freesession(NULL, i);
+					return EINVAL;
+				}
+				memcpy(ixp->ixp_ctx.authCtx.key.authKey,
+						cri->cri_key, (cri->cri_klen + 7) / 8);
+			}
+			break;
+
+		default:
+			printk("ixp: unknown algo 0x%x\n", cri->cri_alg);
+			ixp_freesession(NULL, i);
+			return EINVAL;
+		}
+		cri = cri->cri_next;
+	}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+	INIT_WORK(&ixp->ixp_pending_work, ixp_process_pending_wq);
+	INIT_WORK(&ixp->ixp_registration_work, ixp_registration_wq);
+#else
+	INIT_WORK(&ixp->ixp_pending_work, ixp_process_pending, ixp);
+	INIT_WORK(&ixp->ixp_registration_work, ixp_registration, ixp);
+#endif
+
+	return 0;
+}
+
+
+/*
+ * Free a session.
+ */
+static int
+ixp_freesession(device_t dev, u_int64_t tid)
+{
+	u_int32_t sid = CRYPTO_SESID2LID(tid);
+
+	dprintk("%s()\n", __FUNCTION__);
+	if (sid > ixp_sesnum || ixp_sessions == NULL ||
+			ixp_sessions[sid] == NULL) {
+		dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
+		return EINVAL;
+	}
+
+	/* Silently accept and return */
+	if (sid == 0)
+		return 0;
+
+	if (ixp_sessions[sid]) {
+		if (ixp_sessions[sid]->ixp_ctx_id != -1) {
+			ixCryptoAccCtxUnregister(ixp_sessions[sid]->ixp_ctx_id);
+			ixp_sessions[sid]->ixp_ctx_id = -1;
+		}
+
+		flush_scheduled_work();
+
+		kfree(ixp_sessions[sid]);
+	}
+	ixp_sessions[sid] = NULL;
+	if (ixp_blocked) {
+		ixp_blocked = 0;
+		crypto_unblock(ixp_id, CRYPTO_SYMQ);
+	}
+	return 0;
+}
+
+
+/*
+ * callback for when hash processing is complete
+ */
+
+static void
+ixp_hash_perform_cb(
+	UINT32 hash_key_id,
+	IX_MBUF *bufp,
+	IxCryptoAccStatus status)
+{
+	struct ixp_q *q;
+
+	dprintk("%s(%u, %p, 0x%x)\n", __FUNCTION__, hash_key_id, bufp, status);
+
+	if (bufp == NULL) {
+		printk("ixp: NULL buf in %s\n", __FUNCTION__);
+		return;
+	}
+
+	q = IX_MBUF_PRIV(bufp);
+	if (q == NULL) {
+		printk("ixp: NULL priv in %s\n", __FUNCTION__);
+		return;
+	}
+
+	if (status == IX_CRYPTO_ACC_STATUS_SUCCESS) {
+		/* On success, need to copy hash back into original client buffer */
+		memcpy(q->ixp_hash_dest, q->ixp_hash_src,
+				(q->ixp_q_data->ixp_auth_alg == CRYPTO_SHA1) ?
+					SHA1_HASH_LEN : MD5_HASH_LEN);
+	}
+	else {
+		printk("ixp: hash perform failed status=%d\n", status);
+		q->ixp_q_crp->crp_etype = EINVAL;
+	}
+
+	/* Free internal buffer used for hashing */
+	kfree(IX_MBUF_MDATA(&q->ixp_q_mbuf));
+
+	crypto_done(q->ixp_q_crp);
+	kmem_cache_free(qcache, q);
+}
+
+/*
+ * setup a request and perform it
+ */
+static void
+ixp_q_process(struct ixp_q *q)
+{
+	IxCryptoAccStatus status;
+	struct ixp_data *ixp = q->ixp_q_data;
+	int auth_off = 0;
+	int auth_len = 0;
+	int crypt_off = 0;
+	int crypt_len = 0;
+	int icv_off = 0;
+	char *crypt_func;
+
+	dprintk("%s(%p)\n", __FUNCTION__, q);
+
+	if (q->ixp_q_ccrd) {
+		if (q->ixp_q_ccrd->crd_flags & CRD_F_IV_EXPLICIT) {
+			q->ixp_q_iv = q->ixp_q_ccrd->crd_iv;
+		} else {
+			q->ixp_q_iv = q->ixp_q_iv_data;
+			crypto_copydata(q->ixp_q_crp->crp_flags, q->ixp_q_crp->crp_buf,
+					q->ixp_q_ccrd->crd_inject,
+					ixp->ixp_ctx.cipherCtx.cipherInitialVectorLen,
+					(caddr_t) q->ixp_q_iv);
+		}
+
+		if (q->ixp_q_acrd) {
+			auth_off = q->ixp_q_acrd->crd_skip;
+			auth_len = q->ixp_q_acrd->crd_len;
+			icv_off  = q->ixp_q_acrd->crd_inject;
+		}
+
+		crypt_off = q->ixp_q_ccrd->crd_skip;
+		crypt_len = q->ixp_q_ccrd->crd_len;
+	} else { /* if (q->ixp_q_acrd) */
+		auth_off = q->ixp_q_acrd->crd_skip;
+		auth_len = q->ixp_q_acrd->crd_len;
+		icv_off  = q->ixp_q_acrd->crd_inject;
+	}
+
+	if (q->ixp_q_crp->crp_flags & CRYPTO_F_SKBUF) {
+		struct sk_buff *skb = (struct sk_buff *) q->ixp_q_crp->crp_buf;
+		if (skb_shinfo(skb)->nr_frags) {
+			/*
+			 * DAVIDM fix this limitation one day by using
+			 * a buffer pool and chaining,  it is not currently
+			 * needed for current user/kernel space acceleration
+			 */
+			printk("ixp: Cannot handle fragmented skb's yet !\n");
+			q->ixp_q_crp->crp_etype = ENOENT;
+			goto done;
+		}
+		IX_MBUF_MLEN(&q->ixp_q_mbuf) =
+				IX_MBUF_PKT_LEN(&q->ixp_q_mbuf) =  skb->len;
+		IX_MBUF_MDATA(&q->ixp_q_mbuf) = skb->data;
+	} else if (q->ixp_q_crp->crp_flags & CRYPTO_F_IOV) {
+		struct uio *uiop = (struct uio *) q->ixp_q_crp->crp_buf;
+		if (uiop->uio_iovcnt != 1) {
+			/*
+			 * DAVIDM fix this limitation one day by using
+			 * a buffer pool and chaining,  it is not currently
+			 * needed for current user/kernel space acceleration
+			 */
+			printk("ixp: Cannot handle more than 1 iovec yet !\n");
+			q->ixp_q_crp->crp_etype = ENOENT;
+			goto done;
+		}
+		IX_MBUF_MLEN(&q->ixp_q_mbuf) =
+				IX_MBUF_PKT_LEN(&q->ixp_q_mbuf) = uiop->uio_iov[0].iov_len;
+		IX_MBUF_MDATA(&q->ixp_q_mbuf) = uiop->uio_iov[0].iov_base;
+	} else /* contig buffer */ {
+		IX_MBUF_MLEN(&q->ixp_q_mbuf)  =
+				IX_MBUF_PKT_LEN(&q->ixp_q_mbuf) = q->ixp_q_crp->crp_ilen;
+		IX_MBUF_MDATA(&q->ixp_q_mbuf) = q->ixp_q_crp->crp_buf;
+	}
+
+	IX_MBUF_PRIV(&q->ixp_q_mbuf) = q;
+
+	if (ixp->ixp_auth_alg == CRYPTO_SHA1 || ixp->ixp_auth_alg == CRYPTO_MD5) {
+		/*
+		 * For SHA1 and MD5 hash, need to create an internal buffer that is big
+		 * enough to hold the original data + the appropriate padding for the
+		 * hash algorithm.
+		 */
+		UINT8 *tbuf = NULL;
+
+		IX_MBUF_MLEN(&q->ixp_q_mbuf) = IX_MBUF_PKT_LEN(&q->ixp_q_mbuf) =
+			((IX_MBUF_MLEN(&q->ixp_q_mbuf) * 8) + 72 + 511) / 8;
+		tbuf = kmalloc(IX_MBUF_MLEN(&q->ixp_q_mbuf), SLAB_ATOMIC);
+		
+		if (IX_MBUF_MDATA(&q->ixp_q_mbuf) == NULL) {
+			printk("ixp: kmalloc(%u, SLAB_ATOMIC) failed\n",
+					IX_MBUF_MLEN(&q->ixp_q_mbuf));
+			q->ixp_q_crp->crp_etype = ENOMEM;
+			goto done;
+		}
+		memcpy(tbuf, &(IX_MBUF_MDATA(&q->ixp_q_mbuf))[auth_off], auth_len);
+
+		/* Set location in client buffer to copy hash into */
+		q->ixp_hash_dest =
+			&(IX_MBUF_MDATA(&q->ixp_q_mbuf))[auth_off + auth_len];
+
+		IX_MBUF_MDATA(&q->ixp_q_mbuf) = tbuf;
+
+		/* Set location in internal buffer for where hash starts */
+		q->ixp_hash_src = &(IX_MBUF_MDATA(&q->ixp_q_mbuf))[auth_len];
+
+		crypt_func = "ixCryptoAccHashPerform";
+		status = ixCryptoAccHashPerform(ixp->ixp_ctx.authCtx.authAlgo,
+				&q->ixp_q_mbuf, ixp_hash_perform_cb, 0, auth_len, auth_len,
+				&ixp->ixp_hash_key_id);
+	}
+	else {
+		crypt_func = "ixCryptoAccAuthCryptPerform";
+		status = ixCryptoAccAuthCryptPerform(ixp->ixp_ctx_id, &q->ixp_q_mbuf,
+			NULL, auth_off, auth_len, crypt_off, crypt_len, icv_off,
+			q->ixp_q_iv);
+	}
+
+	if (IX_CRYPTO_ACC_STATUS_SUCCESS == status)
+		return;
+
+	if (IX_CRYPTO_ACC_STATUS_QUEUE_FULL == status) {
+		q->ixp_q_crp->crp_etype = ENOMEM;
+		goto done;
+	}
+
+	printk("ixp: %s failed %u\n", crypt_func, status);
+	q->ixp_q_crp->crp_etype = EINVAL;
+
+done:
+	crypto_done(q->ixp_q_crp);
+	kmem_cache_free(qcache, q);
+}
+
+
+/*
+ * because we cannot process the Q from the Register callback
+ * we do it here on a task Q.
+ */
+
+static void
+ixp_process_pending(void *arg)
+{
+	struct ixp_data *ixp = arg;
+	struct ixp_q *q = NULL;
+
+	dprintk("%s(%p)\n", __FUNCTION__, arg);
+
+	if (!ixp)
+		return;
+
+	while (!list_empty(&ixp->ixp_q)) {
+		q = list_entry(ixp->ixp_q.next, struct ixp_q, ixp_q_list);
+		list_del(&q->ixp_q_list);
+		ixp_q_process(q);
+	}
+}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+static void
+ixp_process_pending_wq(struct work_struct *work)
+{
+	struct ixp_data *ixp = container_of(work, struct ixp_data,
+								ixp_pending_work);
+	ixp_process_pending(ixp);
+}
+#endif
+
+/*
+ * callback for when context registration is complete
+ */
+
+static void
+ixp_register_cb(UINT32 ctx_id, IX_MBUF *bufp, IxCryptoAccStatus status)
+{
+	int i;
+	struct ixp_data *ixp;
+	struct ixp_q *q;
+
+	dprintk("%s(%d, %p, %d)\n", __FUNCTION__, ctx_id, bufp, status);
+
+	/*
+	 * free any buffer passed in to this routine
+	 */
+	if (bufp) {
+		IX_MBUF_MLEN(bufp) = IX_MBUF_PKT_LEN(bufp) = 0;
+		kfree(IX_MBUF_MDATA(bufp));
+		IX_MBUF_MDATA(bufp) = NULL;
+	}
+
+	for (i = 0; i < ixp_sesnum; i++) {
+		ixp = ixp_sessions[i];
+		if (ixp && ixp->ixp_ctx_id == ctx_id)
+			break;
+	}
+	if (i >= ixp_sesnum) {
+		printk("ixp: invalid context id %d\n", ctx_id);
+		return;
+	}
+
+	if (IX_CRYPTO_ACC_STATUS_WAIT == status) {
+		/* this is normal to free the first of two buffers */
+		dprintk("ixp: register not finished yet.\n");
+		return;
+	}
+
+	if (IX_CRYPTO_ACC_STATUS_SUCCESS != status) {
+		printk("ixp: register failed 0x%x\n", status);
+		while (!list_empty(&ixp->ixp_q)) {
+			q = list_entry(ixp->ixp_q.next, struct ixp_q, ixp_q_list);
+			list_del(&q->ixp_q_list);
+			q->ixp_q_crp->crp_etype = EINVAL;
+			crypto_done(q->ixp_q_crp);
+			kmem_cache_free(qcache, q);
+		}
+		return;
+	}
+
+	/*
+	 * we are now registered,  we cannot start processing the Q here
+	 * or we get strange errors with AES (DES/3DES seem to be ok).
+	 */
+	ixp->ixp_registered = 1;
+	schedule_work(&ixp->ixp_pending_work);
+}
+
+
+/*
+ * callback for when data processing is complete
+ */
+
+static void
+ixp_perform_cb(
+	UINT32 ctx_id,
+	IX_MBUF *sbufp,
+	IX_MBUF *dbufp,
+	IxCryptoAccStatus status)
+{
+	struct ixp_q *q;
+
+	dprintk("%s(%d, %p, %p, 0x%x)\n", __FUNCTION__, ctx_id, sbufp,
+			dbufp, status);
+
+	if (sbufp == NULL) {
+		printk("ixp: NULL sbuf in ixp_perform_cb\n");
+		return;
+	}
+
+	q = IX_MBUF_PRIV(sbufp);
+	if (q == NULL) {
+		printk("ixp: NULL priv in ixp_perform_cb\n");
+		return;
+	}
+
+	if (status != IX_CRYPTO_ACC_STATUS_SUCCESS) {
+		printk("ixp: perform failed status=%d\n", status);
+		q->ixp_q_crp->crp_etype = EINVAL;
+	}
+
+	crypto_done(q->ixp_q_crp);
+	kmem_cache_free(qcache, q);
+}
+
+
+/*
+ * registration is not callable at IRQ time,  so we defer
+ * to a task queue,  this routines completes the registration for us
+ * when the task queue runs
+ *
+ * Unfortunately this means we cannot tell OCF that the driver is blocked,
+ * we do that on the next request.
+ */
+
+static void
+ixp_registration(void *arg)
+{
+	struct ixp_data *ixp = arg;
+	struct ixp_q *q = NULL;
+	IX_MBUF *pri = NULL, *sec = NULL;
+	int status = IX_CRYPTO_ACC_STATUS_SUCCESS;
+
+	if (!ixp) {
+		printk("ixp: ixp_registration with no arg\n");
+		return;
+	}
+
+	if (ixp->ixp_ctx_id != -1) {
+		ixCryptoAccCtxUnregister(ixp->ixp_ctx_id);
+		ixp->ixp_ctx_id = -1;
+	}
+
+	if (list_empty(&ixp->ixp_q)) {
+		printk("ixp: ixp_registration with no Q\n");
+		return;
+	}
+
+	/*
+	 * setup the primary and secondary buffers
+	 */
+	q = list_entry(ixp->ixp_q.next, struct ixp_q, ixp_q_list);
+	if (q->ixp_q_acrd) {
+		pri = &ixp->ixp_pri_mbuf;
+		sec = &ixp->ixp_sec_mbuf;
+		IX_MBUF_MLEN(pri)  = IX_MBUF_PKT_LEN(pri) = 128;
+		IX_MBUF_MDATA(pri) = (unsigned char *) kmalloc(128, SLAB_ATOMIC);
+		IX_MBUF_MLEN(sec)  = IX_MBUF_PKT_LEN(sec) = 128;
+		IX_MBUF_MDATA(sec) = (unsigned char *) kmalloc(128, SLAB_ATOMIC);
+	}
+
+	/* Only need to register if a crypt op or HMAC op */
+	if (!(ixp->ixp_auth_alg == CRYPTO_SHA1 ||
+				ixp->ixp_auth_alg == CRYPTO_MD5)) {
+		status = ixCryptoAccCtxRegister(
+					&ixp->ixp_ctx,
+					pri, sec,
+					ixp_register_cb,
+					ixp_perform_cb,
+					&ixp->ixp_ctx_id);
+	}
+	else {
+		/* Otherwise we start processing pending q */
+		schedule_work(&ixp->ixp_pending_work);
+	}
+
+	if (IX_CRYPTO_ACC_STATUS_SUCCESS == status)
+		return;
+
+	if (IX_CRYPTO_ACC_STATUS_EXCEED_MAX_TUNNELS == status) {
+		printk("ixp: ixCryptoAccCtxRegister failed (out of tunnels)\n");
+		ixp_blocked = 1;
+		/* perhaps we should return EGAIN on queued ops ? */
+		return;
+	}
+
+	printk("ixp: ixCryptoAccCtxRegister failed %d\n", status);
+	ixp->ixp_ctx_id = -1;
+
+	/*
+	 * everything waiting is toasted
+	 */
+	while (!list_empty(&ixp->ixp_q)) {
+		q = list_entry(ixp->ixp_q.next, struct ixp_q, ixp_q_list);
+		list_del(&q->ixp_q_list);
+		q->ixp_q_crp->crp_etype = ENOENT;
+		crypto_done(q->ixp_q_crp);
+		kmem_cache_free(qcache, q);
+	}
+}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+static void
+ixp_registration_wq(struct work_struct *work)
+{
+	struct ixp_data *ixp = container_of(work, struct ixp_data,
+								ixp_registration_work);
+	ixp_registration(ixp);
+}
+#endif
+
+/*
+ * Process a request.
+ */
+static int
+ixp_process(device_t dev, struct cryptop *crp, int hint)
+{
+	struct ixp_data *ixp;
+	unsigned int lid;
+	struct ixp_q *q = NULL;
+	int status;
+
+	dprintk("%s()\n", __FUNCTION__);
+
+	/* Sanity check */
+	if (crp == NULL) {
+		dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
+		return EINVAL;
+	}
+
+	crp->crp_etype = 0;
+
+	if (ixp_blocked)
+		return ERESTART;
+
+	if (crp->crp_desc == NULL || crp->crp_buf == NULL) {
+		dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
+		crp->crp_etype = EINVAL;
+		goto done;
+	}
+
+	/*
+	 * find the session we are using
+	 */
+
+	lid = crp->crp_sid & 0xffffffff;
+	if (lid >= ixp_sesnum || lid == 0 || ixp_sessions == NULL ||
+			ixp_sessions[lid] == NULL) {
+		crp->crp_etype = ENOENT;
+		dprintk("%s,%d: ENOENT\n", __FILE__, __LINE__);
+		goto done;
+	}
+	ixp = ixp_sessions[lid];
+
+	/*
+	 * setup a new request ready for queuing
+	 */
+	q = kmem_cache_alloc(qcache, SLAB_ATOMIC);
+	if (q == NULL) {
+		dprintk("%s,%d: ENOMEM\n", __FILE__, __LINE__);
+		crp->crp_etype = ENOMEM;
+		goto done;
+	}
+	/*
+	 * save some cycles by only zeroing the important bits
+	 */
+	memset(&q->ixp_q_mbuf, 0, sizeof(q->ixp_q_mbuf));
+	q->ixp_q_ccrd = NULL;
+	q->ixp_q_acrd = NULL;
+	q->ixp_q_crp = crp;
+	q->ixp_q_data = ixp;
+
+	/*
+	 * point the cipher and auth descriptors appropriately
+	 * check that we have something to do
+	 */
+	if (crp->crp_desc->crd_alg == ixp->ixp_cipher_alg)
+		q->ixp_q_ccrd = crp->crp_desc;
+	else if (crp->crp_desc->crd_alg == ixp->ixp_auth_alg)
+		q->ixp_q_acrd = crp->crp_desc;
+	else {
+		crp->crp_etype = ENOENT;
+		dprintk("%s,%d: bad desc match: ENOENT\n", __FILE__, __LINE__);
+		goto done;
+	}
+	if (crp->crp_desc->crd_next) {
+		if (crp->crp_desc->crd_next->crd_alg == ixp->ixp_cipher_alg)
+			q->ixp_q_ccrd = crp->crp_desc->crd_next;
+		else if (crp->crp_desc->crd_next->crd_alg == ixp->ixp_auth_alg)
+			q->ixp_q_acrd = crp->crp_desc->crd_next;
+		else {
+			crp->crp_etype = ENOENT;
+			dprintk("%s,%d: bad desc match: ENOENT\n", __FILE__, __LINE__);
+			goto done;
+		}
+	}
+
+	/*
+	 * If there is a direction change for this context then we mark it as
+	 * unregistered and re-register is for the new direction.  This is not
+	 * a very expensive operation and currently only tends to happen when
+	 * user-space application are doing benchmarks
+	 *
+	 * DM - we should be checking for pending requests before unregistering.
+	 */
+	if (q->ixp_q_ccrd && ixp->ixp_registered &&
+			ixp->ixp_crd_flags != (q->ixp_q_ccrd->crd_flags & CRD_F_ENCRYPT)) {
+		dprintk("%s - detected direction change on session\n", __FUNCTION__);
+		ixp->ixp_registered = 0;
+	}
+
+	/*
+	 * if we are registered,  call straight into the perform code
+	 */
+	if (ixp->ixp_registered) {
+		ixp_q_process(q);
+		return 0;
+	}
+
+	/*
+	 * the only part of the context not set in newsession is the direction
+	 * dependent parts
+	 */
+	if (q->ixp_q_ccrd) {
+		ixp->ixp_crd_flags = (q->ixp_q_ccrd->crd_flags & CRD_F_ENCRYPT);
+		if (q->ixp_q_ccrd->crd_flags & CRD_F_ENCRYPT) {
+			ixp->ixp_ctx.operation = q->ixp_q_acrd ?
+					IX_CRYPTO_ACC_OP_ENCRYPT_AUTH : IX_CRYPTO_ACC_OP_ENCRYPT;
+		} else {
+			ixp->ixp_ctx.operation = q->ixp_q_acrd ?
+					IX_CRYPTO_ACC_OP_AUTH_DECRYPT : IX_CRYPTO_ACC_OP_DECRYPT;
+		}
+	} else {
+		/* q->ixp_q_acrd must be set if we are here */
+		ixp->ixp_ctx.operation = IX_CRYPTO_ACC_OP_AUTH_CALC;
+	}
+
+	status = list_empty(&ixp->ixp_q);
+	list_add_tail(&q->ixp_q_list, &ixp->ixp_q);
+	if (status)
+		schedule_work(&ixp->ixp_registration_work);
+	return 0;
+
+done:
+	if (q)
+		kmem_cache_free(qcache, q);
+	crypto_done(crp);
+	return 0;
+}
+
+
+#ifdef __ixp46X
+/*
+ * key processing support for the ixp465
+ */
+
+
+/*
+ * copy a BN (LE) into a buffer (BE) an fill out the op appropriately
+ * assume zeroed and only copy bits that are significant
+ */
+
+static int
+ixp_copy_ibuf(struct crparam *p, IxCryptoAccPkeEauOperand *op, UINT32 *buf)
+{
+	unsigned char *src = (unsigned char *) p->crp_p;
+	unsigned char *dst;
+	int len, bits = p->crp_nbits;
+
+	dprintk("%s()\n", __FUNCTION__);
+
+	if (bits > MAX_IOP_SIZE * sizeof(UINT32) * 8) {
+		dprintk("%s - ibuf too big (%d > %d)\n", __FUNCTION__,
+				bits, MAX_IOP_SIZE * sizeof(UINT32) * 8);
+		return -1;
+	}
+
+	len = (bits + 31) / 32; /* the number UINT32's needed */
+
+	dst = (unsigned char *) &buf[len];
+	dst--;
+
+	while (bits > 0) {
+		*dst-- = *src++;
+		bits -= 8;
+	}
+
+#if 0 /* no need to zero remaining bits as it is done during request alloc */
+	while (dst > (unsigned char *) buf)
+		*dst-- = '\0';
+#endif
+
+	op->pData = buf;
+	op->dataLen = len;
+	return 0;
+}
+
+/*
+ * copy out the result,  be as forgiving as we can about small output buffers
+ */
+
+static int
+ixp_copy_obuf(struct crparam *p, IxCryptoAccPkeEauOpResult *op, UINT32 *buf)
+{
+	unsigned char *dst = (unsigned char *) p->crp_p;
+	unsigned char *src = (unsigned char *) buf;
+	int len, z, bits = p->crp_nbits;
+
+	dprintk("%s()\n", __FUNCTION__);
+
+	len = op->dataLen * sizeof(UINT32);
+
+	/* skip leading zeroes to be small buffer friendly */
+	z = 0;
+	while (z < len && src[z] == '\0')
+		z++;
+
+	src += len;
+	src--;
+	len -= z;
+
+	while (len > 0 && bits > 0) {
+		*dst++ = *src--;
+		len--;
+		bits -= 8;
+	}
+
+	while (bits > 0) {
+		*dst++ = '\0';
+		bits -= 8;
+	}
+
+	if (len > 0) {
+		dprintk("%s - obuf is %d (z=%d, ob=%d) bytes too small\n",
+				__FUNCTION__, len, z, p->crp_nbits / 8);
+		return -1;
+	}
+
+	return 0;
+}
+
+
+/*
+ * the parameter offsets for exp_mod
+ */
+
+#define IXP_PARAM_BASE 0
+#define IXP_PARAM_EXP  1
+#define IXP_PARAM_MOD  2
+#define IXP_PARAM_RES  3
+
+/*
+ * key processing complete callback,  is also used to start processing
+ * by passing a NULL for pResult
+ */
+
+static void
+ixp_kperform_cb(
+	IxCryptoAccPkeEauOperation operation,
+	IxCryptoAccPkeEauOpResult *pResult,
+	BOOL carryOrBorrow,
+	IxCryptoAccStatus status)
+{
+	struct ixp_pkq *q, *tmp;
+	unsigned long flags;
+
+	dprintk("%s(0x%x, %p, %d, 0x%x)\n", __FUNCTION__, operation, pResult,
+			carryOrBorrow, status);
+
+	/* handle a completed request */
+	if (pResult) {
+		if (ixp_pk_cur && &ixp_pk_cur->pkq_result == pResult) {
+			q = ixp_pk_cur;
+			if (status != IX_CRYPTO_ACC_STATUS_SUCCESS) {
+				dprintk("%s() - op failed 0x%x\n", __FUNCTION__, status);
+				q->pkq_krp->krp_status = ERANGE; /* could do better */
+			} else {
+				/* copy out the result */
+				if (ixp_copy_obuf(&q->pkq_krp->krp_param[IXP_PARAM_RES],
+						&q->pkq_result, q->pkq_obuf))
+					q->pkq_krp->krp_status = ERANGE;
+			}
+			crypto_kdone(q->pkq_krp);
+			kfree(q);
+			ixp_pk_cur = NULL;
+		} else
+			printk("%s - callback with invalid result pointer\n", __FUNCTION__);
+	}
+
+	spin_lock_irqsave(&ixp_pkq_lock, flags);
+	if (ixp_pk_cur || list_empty(&ixp_pkq)) {
+		spin_unlock_irqrestore(&ixp_pkq_lock, flags);
+		return;
+	}
+
+	list_for_each_entry_safe(q, tmp, &ixp_pkq, pkq_list) {
+
+		list_del(&q->pkq_list);
+		ixp_pk_cur = q;
+
+		spin_unlock_irqrestore(&ixp_pkq_lock, flags);
+
+		status = ixCryptoAccPkeEauPerform(
+				IX_CRYPTO_ACC_OP_EAU_MOD_EXP,
+				&q->pkq_op,
+				ixp_kperform_cb,
+				&q->pkq_result);
+	
+		if (status == IX_CRYPTO_ACC_STATUS_SUCCESS) {
+			dprintk("%s() - ixCryptoAccPkeEauPerform SUCCESS\n", __FUNCTION__);
+			return; /* callback will return here for callback */
+		} else if (status == IX_CRYPTO_ACC_STATUS_RETRY) {
+			printk("%s() - ixCryptoAccPkeEauPerform RETRY\n", __FUNCTION__);
+		} else {
+			printk("%s() - ixCryptoAccPkeEauPerform failed %d\n",
+					__FUNCTION__, status);
+		}
+		q->pkq_krp->krp_status = ERANGE; /* could do better */
+		crypto_kdone(q->pkq_krp);
+		kfree(q);
+		spin_lock_irqsave(&ixp_pkq_lock, flags);
+	}
+	spin_unlock_irqrestore(&ixp_pkq_lock, flags);
+}
+
+
+static int
+ixp_kprocess(device_t dev, struct cryptkop *krp, int hint)
+{
+	struct ixp_pkq *q;
+	int rc = 0;
+	unsigned long flags;
+
+	dprintk("%s l1=%d l2=%d l3=%d l4=%d\n", __FUNCTION__,
+			krp->krp_param[IXP_PARAM_BASE].crp_nbits,
+			krp->krp_param[IXP_PARAM_EXP].crp_nbits,
+			krp->krp_param[IXP_PARAM_MOD].crp_nbits,
+			krp->krp_param[IXP_PARAM_RES].crp_nbits);
+
+
+	if (krp->krp_op != CRK_MOD_EXP) {
+		krp->krp_status = EOPNOTSUPP;
+		goto err;
+	}
+
+	q = (struct ixp_pkq *) kmalloc(sizeof(*q), GFP_KERNEL);
+	if (q == NULL) {
+		krp->krp_status = ENOMEM;
+		goto err;
+	}
+
+	/*
+	 * The PKE engine does not appear to zero the output buffer
+	 * appropriately, so we need to do it all here.
+	 */
+	memset(q, 0, sizeof(*q));
+
+	q->pkq_krp = krp;
+	INIT_LIST_HEAD(&q->pkq_list);
+
+	if (ixp_copy_ibuf(&krp->krp_param[IXP_PARAM_BASE], &q->pkq_op.modExpOpr.M,
+			q->pkq_ibuf0))
+		rc = 1;
+	if (!rc && ixp_copy_ibuf(&krp->krp_param[IXP_PARAM_EXP],
+				&q->pkq_op.modExpOpr.e, q->pkq_ibuf1))
+		rc = 2;
+	if (!rc && ixp_copy_ibuf(&krp->krp_param[IXP_PARAM_MOD],
+				&q->pkq_op.modExpOpr.N, q->pkq_ibuf2))
+		rc = 3;
+
+	if (rc) {
+		kfree(q);
+		krp->krp_status = ERANGE;
+		goto err;
+	}
+
+	q->pkq_result.pData           = q->pkq_obuf;
+	q->pkq_result.dataLen         =
+			(krp->krp_param[IXP_PARAM_RES].crp_nbits + 31) / 32;
+
+	spin_lock_irqsave(&ixp_pkq_lock, flags);
+	list_add_tail(&q->pkq_list, &ixp_pkq);
+	spin_unlock_irqrestore(&ixp_pkq_lock, flags);
+
+	if (!ixp_pk_cur)
+		ixp_kperform_cb(0, NULL, 0, 0);
+	return (0);
+
+err:
+	crypto_kdone(krp);
+	return (0);
+}
+
+
+
+#ifdef CONFIG_OCF_RANDOMHARVEST
+/*
+ * We run the random number generator output through SHA so that it
+ * is FIPS compliant.
+ */
+
+static volatile int sha_done = 0;
+static unsigned char sha_digest[20];
+
+static void
+ixp_hash_cb(UINT8 *digest, IxCryptoAccStatus status)
+{
+	dprintk("%s(%p, %d)\n", __FUNCTION__, digest, status);
+	if (sha_digest != digest)
+		printk("digest error\n");
+	if (IX_CRYPTO_ACC_STATUS_SUCCESS == status)
+		sha_done = 1;
+	else
+		sha_done = -status;
+}
+
+static int
+ixp_read_random(void *arg, u_int32_t *buf, int maxwords)
+{
+	IxCryptoAccStatus status;
+	int i, n, rc;
+
+	dprintk("%s(%p, %d)\n", __FUNCTION__, buf, maxwords);
+	memset(buf, 0, maxwords * sizeof(*buf));
+	status = ixCryptoAccPkePseudoRandomNumberGet(maxwords, buf);
+	if (status != IX_CRYPTO_ACC_STATUS_SUCCESS) {
+		dprintk("%s: ixCryptoAccPkePseudoRandomNumberGet failed %d\n",
+				__FUNCTION__, status);
+		return 0;
+	}
+
+	/*
+	 * run the random data through SHA to make it look more random
+	 */
+
+	n = sizeof(sha_digest); /* process digest bytes at a time */
+
+	rc = 0;
+	for (i = 0; i < maxwords; i += n / sizeof(*buf)) {
+		if ((maxwords - i) * sizeof(*buf) < n)
+			n = (maxwords - i) * sizeof(*buf);
+		sha_done = 0;
+		status = ixCryptoAccPkeHashPerform(IX_CRYPTO_ACC_AUTH_SHA1,
+				(UINT8 *) &buf[i], n, ixp_hash_cb, sha_digest);
+		if (status != IX_CRYPTO_ACC_STATUS_SUCCESS) {
+			dprintk("ixCryptoAccPkeHashPerform failed %d\n", status);
+			return -EIO;
+		}
+		while (!sha_done)
+			schedule();
+		if (sha_done < 0) {
+			dprintk("ixCryptoAccPkeHashPerform failed CB %d\n", -sha_done);
+			return 0;
+		}
+		memcpy(&buf[i], sha_digest, n);
+		rc += n / sizeof(*buf);;
+	}
+
+	return rc;
+}
+#endif /* CONFIG_OCF_RANDOMHARVEST */
+
+#endif /* __ixp46X */
+
+
+
+/*
+ * our driver startup and shutdown routines
+ */
+
+static int
+ixp_init(void)
+{
+	dprintk("%s(%p)\n", __FUNCTION__, ixp_init);
+
+	if (ixp_init_crypto && ixCryptoAccInit() != IX_CRYPTO_ACC_STATUS_SUCCESS)
+		printk("ixCryptoAccInit failed, assuming already initialised!\n");
+
+	qcache = kmem_cache_create("ixp4xx_q", sizeof(struct ixp_q), 0,
+				SLAB_HWCACHE_ALIGN, NULL
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23)
+				, NULL
+#endif
+				  );
+	if (!qcache) {
+		printk("failed to create Qcache\n");
+		return -ENOENT;
+	}
+
+	memset(&ixpdev, 0, sizeof(ixpdev));
+	softc_device_init(&ixpdev, "ixp4xx", 0, ixp_methods);
+
+	ixp_id = crypto_get_driverid(softc_get_device(&ixpdev),
+				CRYPTOCAP_F_HARDWARE);
+	if (ixp_id < 0)
+		panic("IXP/OCF crypto device cannot initialize!");
+
+#define	REGISTER(alg) \
+	crypto_register(ixp_id,alg,0,0)
+
+	REGISTER(CRYPTO_DES_CBC);
+	REGISTER(CRYPTO_3DES_CBC);
+	REGISTER(CRYPTO_RIJNDAEL128_CBC);
+#ifdef CONFIG_OCF_IXP4XX_SHA1_MD5
+	REGISTER(CRYPTO_MD5);
+	REGISTER(CRYPTO_SHA1);
+#endif
+	REGISTER(CRYPTO_MD5_HMAC);
+	REGISTER(CRYPTO_SHA1_HMAC);
+#undef REGISTER
+
+#ifdef __ixp46X
+	spin_lock_init(&ixp_pkq_lock);
+	/*
+	 * we do not enable the go fast options here as they can potentially
+	 * allow timing based attacks
+	 *
+	 * http://www.openssl.org/news/secadv_20030219.txt
+	 */
+	ixCryptoAccPkeEauExpConfig(0, 0);
+	crypto_kregister(ixp_id, CRK_MOD_EXP, 0);
+#ifdef CONFIG_OCF_RANDOMHARVEST
+	crypto_rregister(ixp_id, ixp_read_random, NULL);
+#endif
+#endif
+
+	return 0;
+}
+
+static void
+ixp_exit(void)
+{
+	dprintk("%s()\n", __FUNCTION__);
+	crypto_unregister_all(ixp_id);
+	ixp_id = -1;
+	kmem_cache_destroy(qcache);
+	qcache = NULL;
+}
+
+module_init(ixp_init);
+module_exit(ixp_exit);
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("David McCullough <dmccullough@cyberguard.com>");
+MODULE_DESCRIPTION("ixp (OCF module for IXP4xx crypto)");
diff -Nur linux-2.6.29.1.orig/crypto/ocf/ocf-bench.c linux-2.6.29.1/crypto/ocf/ocf-bench.c
--- linux-2.6.29.1.orig/crypto/ocf/ocf-bench.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/ocf-bench.c	2009-04-20 20:01:21.548558198 +0200
@@ -0,0 +1,436 @@
+/*
+ * A loadable module that benchmarks the OCF crypto speed from kernel space.
+ *
+ * Copyright (C) 2004-2007 David McCullough <david_mccullough@securecomputing.com>
+ *
+ * LICENSE TERMS
+ *
+ * The free distribution and use of this software in both source and binary
+ * form is allowed (with or without changes) provided that:
+ *
+ *   1. distributions of this source code include the above copyright
+ *      notice, this list of conditions and the following disclaimer;
+ *
+ *   2. distributions in binary form include the above copyright
+ *      notice, this list of conditions and the following disclaimer
+ *      in the documentation and/or other associated materials;
+ *
+ *   3. the copyright holder's name is not used to endorse products
+ *      built using this software without specific written permission.
+ *
+ * ALTERNATIVELY, provided that this notice is retained in full, this product
+ * may be distributed under the terms of the GNU General Public License (GPL),
+ * in which case the provisions of the GPL apply INSTEAD OF those given above.
+ *
+ * DISCLAIMER
+ *
+ * This software is provided 'as is' with no explicit or implied warranties
+ * in respect of its properties, including, but not limited to, correctness
+ * and/or fitness for purpose.
+ */
+
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/wait.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include <linux/version.h>
+#include <linux/interrupt.h>
+#include <cryptodev.h>
+
+#ifdef I_HAVE_AN_XSCALE_WITH_INTEL_SDK
+#define BENCH_IXP_ACCESS_LIB 1
+#endif
+#ifdef BENCH_IXP_ACCESS_LIB
+#include <IxTypes.h>
+#include <IxOsBuffMgt.h>
+#include <IxNpeDl.h>
+#include <IxCryptoAcc.h>
+#include <IxQMgr.h>
+#include <IxOsServices.h>
+#include <IxOsCacheMMU.h>
+#endif
+
+/*
+ * support for access lib version 1.4
+ */
+#ifndef IX_MBUF_PRIV
+#define IX_MBUF_PRIV(x) ((x)->priv)
+#endif
+
+/*
+ * the number of simultaneously active requests
+ */
+static int request_q_len = 20;
+module_param(request_q_len, int, 0);
+MODULE_PARM_DESC(request_q_len, "Number of outstanding requests");
+/*
+ * how many requests we want to have processed
+ */
+static int request_num = 1024;
+module_param(request_num, int, 0);
+MODULE_PARM_DESC(request_num, "run for at least this many requests");
+/*
+ * the size of each request
+ */
+static int request_size = 1500;
+module_param(request_size, int, 0);
+MODULE_PARM_DESC(request_size, "size of each request");
+
+/*
+ * a structure for each request
+ */
+typedef struct  {
+	struct work_struct work;
+#ifdef BENCH_IXP_ACCESS_LIB
+	IX_MBUF mbuf;
+#endif
+	unsigned char *buffer;
+} request_t;
+
+static request_t *requests;
+
+static int outstanding;
+static int total;
+
+/*************************************************************************/
+/*
+ * OCF benchmark routines
+ */
+
+static uint64_t ocf_cryptoid;
+static int ocf_init(void);
+static int ocf_cb(struct cryptop *crp);
+static void ocf_request(void *arg);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+static void ocf_request_wq(struct work_struct *work);
+#endif
+
+static int
+ocf_init(void)
+{
+	int error;
+	struct cryptoini crie, cria;
+	struct cryptodesc crda, crde;
+
+	memset(&crie, 0, sizeof(crie));
+	memset(&cria, 0, sizeof(cria));
+	memset(&crde, 0, sizeof(crde));
+	memset(&crda, 0, sizeof(crda));
+
+	cria.cri_alg  = CRYPTO_SHA1_HMAC;
+	cria.cri_klen = 20 * 8;
+	cria.cri_key  = "0123456789abcdefghij";
+
+	crie.cri_alg  = CRYPTO_3DES_CBC;
+	crie.cri_klen = 24 * 8;
+	crie.cri_key  = "0123456789abcdefghijklmn";
+
+	crie.cri_next = &cria;
+
+	error = crypto_newsession(&ocf_cryptoid, &crie, 0);
+	if (error) {
+		printk("crypto_newsession failed %d\n", error);
+		return -1;
+	}
+	return 0;
+}
+
+static int
+ocf_cb(struct cryptop *crp)
+{
+	request_t *r = (request_t *) crp->crp_opaque;
+
+	if (crp->crp_etype)
+		printk("Error in OCF processing: %d\n", crp->crp_etype);
+	total++;
+	crypto_freereq(crp);
+	crp = NULL;
+
+	if (total > request_num) {
+		outstanding--;
+		return 0;
+	}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+	INIT_WORK(&r->work, ocf_request_wq);
+#else
+	INIT_WORK(&r->work, ocf_request, r);
+#endif
+	schedule_work(&r->work);
+	return 0;
+}
+
+
+static void
+ocf_request(void *arg)
+{
+	request_t *r = arg;
+	struct cryptop *crp = crypto_getreq(2);
+	struct cryptodesc *crde, *crda;
+
+	if (!crp) {
+		outstanding--;
+		return;
+	}
+
+	crde = crp->crp_desc;
+	crda = crde->crd_next;
+
+	crda->crd_skip = 0;
+	crda->crd_flags = 0;
+	crda->crd_len = request_size;
+	crda->crd_inject = request_size;
+	crda->crd_alg = CRYPTO_SHA1_HMAC;
+	crda->crd_key = "0123456789abcdefghij";
+	crda->crd_klen = 20 * 8;
+
+	crde->crd_skip = 0;
+	crde->crd_flags = CRD_F_IV_EXPLICIT | CRD_F_ENCRYPT;
+	crde->crd_len = request_size;
+	crde->crd_inject = request_size;
+	crde->crd_alg = CRYPTO_3DES_CBC;
+	crde->crd_key = "0123456789abcdefghijklmn";
+	crde->crd_klen = 24 * 8;
+
+	crp->crp_ilen = request_size + 64;
+	crp->crp_flags = CRYPTO_F_CBIMM;
+	crp->crp_buf = (caddr_t) r->buffer;
+	crp->crp_callback = ocf_cb;
+	crp->crp_sid = ocf_cryptoid;
+	crp->crp_opaque = (caddr_t) r;
+	crypto_dispatch(crp);
+}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+static void
+ocf_request_wq(struct work_struct *work)
+{
+	request_t *r = container_of(work, request_t, work);
+	ocf_request(r);
+}
+#endif
+
+/*************************************************************************/
+#ifdef BENCH_IXP_ACCESS_LIB
+/*************************************************************************/
+/*
+ * CryptoAcc benchmark routines
+ */
+
+static IxCryptoAccCtx ixp_ctx;
+static UINT32 ixp_ctx_id;
+static IX_MBUF ixp_pri;
+static IX_MBUF ixp_sec;
+static int ixp_registered = 0;
+
+static void ixp_register_cb(UINT32 ctx_id, IX_MBUF *bufp,
+					IxCryptoAccStatus status);
+static void ixp_perform_cb(UINT32 ctx_id, IX_MBUF *sbufp, IX_MBUF *dbufp,
+					IxCryptoAccStatus status);
+static void ixp_request(void *arg);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+static void ixp_request_wq(struct work_struct *work);
+#endif
+
+static int
+ixp_init(void)
+{
+	IxCryptoAccStatus status;
+
+	ixp_ctx.cipherCtx.cipherAlgo = IX_CRYPTO_ACC_CIPHER_3DES;
+	ixp_ctx.cipherCtx.cipherMode = IX_CRYPTO_ACC_MODE_CBC;
+	ixp_ctx.cipherCtx.cipherKeyLen = 24;
+	ixp_ctx.cipherCtx.cipherBlockLen = IX_CRYPTO_ACC_DES_BLOCK_64;
+	ixp_ctx.cipherCtx.cipherInitialVectorLen = IX_CRYPTO_ACC_DES_IV_64;
+	memcpy(ixp_ctx.cipherCtx.key.cipherKey, "0123456789abcdefghijklmn", 24);
+
+	ixp_ctx.authCtx.authAlgo = IX_CRYPTO_ACC_AUTH_SHA1;
+	ixp_ctx.authCtx.authDigestLen = 12;
+	ixp_ctx.authCtx.aadLen = 0;
+	ixp_ctx.authCtx.authKeyLen = 20;
+	memcpy(ixp_ctx.authCtx.key.authKey, "0123456789abcdefghij", 20);
+
+	ixp_ctx.useDifferentSrcAndDestMbufs = 0;
+	ixp_ctx.operation = IX_CRYPTO_ACC_OP_ENCRYPT_AUTH ;
+
+	IX_MBUF_MLEN(&ixp_pri)  = IX_MBUF_PKT_LEN(&ixp_pri) = 128;
+	IX_MBUF_MDATA(&ixp_pri) = (unsigned char *) kmalloc(128, SLAB_ATOMIC);
+	IX_MBUF_MLEN(&ixp_sec)  = IX_MBUF_PKT_LEN(&ixp_sec) = 128;
+	IX_MBUF_MDATA(&ixp_sec) = (unsigned char *) kmalloc(128, SLAB_ATOMIC);
+
+	status = ixCryptoAccCtxRegister(&ixp_ctx, &ixp_pri, &ixp_sec,
+			ixp_register_cb, ixp_perform_cb, &ixp_ctx_id);
+
+	if (IX_CRYPTO_ACC_STATUS_SUCCESS == status) {
+		while (!ixp_registered)
+			schedule();
+		return ixp_registered < 0 ? -1 : 0;
+	}
+
+	printk("ixp: ixCryptoAccCtxRegister failed %d\n", status);
+	return -1;
+}
+
+static void
+ixp_register_cb(UINT32 ctx_id, IX_MBUF *bufp, IxCryptoAccStatus status)
+{
+	if (bufp) {
+		IX_MBUF_MLEN(bufp) = IX_MBUF_PKT_LEN(bufp) = 0;
+		kfree(IX_MBUF_MDATA(bufp));
+		IX_MBUF_MDATA(bufp) = NULL;
+	}
+
+	if (IX_CRYPTO_ACC_STATUS_WAIT == status)
+		return;
+	if (IX_CRYPTO_ACC_STATUS_SUCCESS == status)
+		ixp_registered = 1;
+	else
+		ixp_registered = -1;
+}
+
+static void
+ixp_perform_cb(
+	UINT32 ctx_id,
+	IX_MBUF *sbufp,
+	IX_MBUF *dbufp,
+	IxCryptoAccStatus status)
+{
+	request_t *r = NULL;
+
+	total++;
+	if (total > request_num) {
+		outstanding--;
+		return;
+	}
+
+	if (!sbufp || !(r = IX_MBUF_PRIV(sbufp))) {
+		printk("crappo %p %p\n", sbufp, r);
+		outstanding--;
+		return;
+	}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+	INIT_WORK(&r->work, ixp_request_wq);
+#else
+	INIT_WORK(&r->work, ixp_request, r);
+#endif
+	schedule_work(&r->work);
+}
+
+static void
+ixp_request(void *arg)
+{
+	request_t *r = arg;
+	IxCryptoAccStatus status;
+
+	memset(&r->mbuf, 0, sizeof(r->mbuf));
+	IX_MBUF_MLEN(&r->mbuf) = IX_MBUF_PKT_LEN(&r->mbuf) = request_size + 64;
+	IX_MBUF_MDATA(&r->mbuf) = r->buffer;
+	IX_MBUF_PRIV(&r->mbuf) = r;
+	status = ixCryptoAccAuthCryptPerform(ixp_ctx_id, &r->mbuf, NULL,
+			0, request_size, 0, request_size, request_size, r->buffer);
+	if (IX_CRYPTO_ACC_STATUS_SUCCESS != status) {
+		printk("status1 = %d\n", status);
+		outstanding--;
+		return;
+	}
+	return;
+}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+static void
+ixp_request_wq(struct work_struct *work)
+{
+	request_t *r = container_of(work, request_t, work);
+	ixp_request(r);
+}
+#endif
+
+/*************************************************************************/
+#endif /* BENCH_IXP_ACCESS_LIB */
+/*************************************************************************/
+
+int
+ocfbench_init(void)
+{
+	int i, jstart, jstop;
+
+	printk("Crypto Speed tests\n");
+
+	requests = kmalloc(sizeof(request_t) * request_q_len, GFP_KERNEL);
+	if (!requests) {
+		printk("malloc failed\n");
+		return -EINVAL;
+	}
+
+	for (i = 0; i < request_q_len; i++) {
+		/* +64 for return data */
+		requests[i].buffer = kmalloc(request_size + 128, GFP_DMA);
+		if (!requests[i].buffer) {
+			printk("malloc failed\n");
+			return -EINVAL;
+		}
+		memset(requests[i].buffer, '0' + i, request_size + 128);
+	}
+
+	/*
+	 * OCF benchmark
+	 */
+	printk("OCF: testing ...\n");
+	ocf_init();
+	total = outstanding = 0;
+	jstart = jiffies;
+	for (i = 0; i < request_q_len; i++) {
+		outstanding++;
+		ocf_request(&requests[i]);
+	}
+	while (outstanding > 0)
+		schedule();
+	jstop = jiffies;
+
+	printk("OCF: %d requests of %d bytes in %d jiffies\n", total, request_size,
+			jstop - jstart);
+
+#ifdef BENCH_IXP_ACCESS_LIB
+	/*
+	 * IXP benchmark
+	 */
+	printk("IXP: testing ...\n");
+	ixp_init();
+	total = outstanding = 0;
+	jstart = jiffies;
+	for (i = 0; i < request_q_len; i++) {
+		outstanding++;
+		ixp_request(&requests[i]);
+	}
+	while (outstanding > 0)
+		schedule();
+	jstop = jiffies;
+
+	printk("IXP: %d requests of %d bytes in %d jiffies\n", total, request_size,
+			jstop - jstart);
+#endif /* BENCH_IXP_ACCESS_LIB */
+
+	for (i = 0; i < request_q_len; i++)
+		kfree(requests[i].buffer);
+	kfree(requests);
+	return -EINVAL; /* always fail to load so it can be re-run quickly ;-) */
+}
+
+static void __exit ocfbench_exit(void)
+{
+}
+
+module_init(ocfbench_init);
+module_exit(ocfbench_exit);
+
+MODULE_LICENSE("BSD");
+MODULE_AUTHOR("David McCullough <david_mccullough@securecomputing.com>");
+MODULE_DESCRIPTION("Benchmark various in-kernel crypto speeds");
diff -Nur linux-2.6.29.1.orig/crypto/ocf/ocf-compat.h linux-2.6.29.1/crypto/ocf/ocf-compat.h
--- linux-2.6.29.1.orig/crypto/ocf/ocf-compat.h	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/ocf-compat.h	2009-04-20 20:01:21.552559545 +0200
@@ -0,0 +1,270 @@
+#ifndef _BSD_COMPAT_H_
+#define _BSD_COMPAT_H_ 1
+/****************************************************************************/
+/*
+ * Provide compat routines for older linux kernels and BSD kernels
+ *
+ * Written by David McCullough <david_mccullough@securecomputing.com>
+ * Copyright (C) 2007 David McCullough <david_mccullough@securecomputing.com>
+ *
+ * LICENSE TERMS
+ *
+ * The free distribution and use of this software in both source and binary
+ * form is allowed (with or without changes) provided that:
+ *
+ *   1. distributions of this source code include the above copyright
+ *      notice, this list of conditions and the following disclaimer;
+ *
+ *   2. distributions in binary form include the above copyright
+ *      notice, this list of conditions and the following disclaimer
+ *      in the documentation and/or other associated materials;
+ *
+ *   3. the copyright holder's name is not used to endorse products
+ *      built using this software without specific written permission.
+ *
+ * ALTERNATIVELY, provided that this notice is retained in full, this file
+ * may be distributed under the terms of the GNU General Public License (GPL),
+ * in which case the provisions of the GPL apply INSTEAD OF those given above.
+ *
+ * DISCLAIMER
+ *
+ * This software is provided 'as is' with no explicit or implied warranties
+ * in respect of its properties, including, but not limited to, correctness
+ * and/or fitness for purpose.
+ */
+/****************************************************************************/
+#ifdef __KERNEL__
+/*
+ * fake some BSD driver interface stuff specifically for OCF use
+ */
+
+typedef struct ocf_device *device_t;
+
+typedef struct {
+	int (*cryptodev_newsession)(device_t dev, u_int32_t *sidp, struct cryptoini *cri);
+	int (*cryptodev_freesession)(device_t dev, u_int64_t tid);
+	int (*cryptodev_process)(device_t dev, struct cryptop *crp, int hint);
+	int (*cryptodev_kprocess)(device_t dev, struct cryptkop *krp, int hint);
+} device_method_t;
+#define DEVMETHOD(id, func)	id: func
+
+struct ocf_device {
+	char name[32];		/* the driver name */
+	char nameunit[32];	/* the driver name + HW instance */
+	int  unit;
+	device_method_t	methods;
+	void *softc;
+};
+
+#define CRYPTODEV_NEWSESSION(dev, sid, cri) \
+	((*(dev)->methods.cryptodev_newsession)(dev,sid,cri))
+#define CRYPTODEV_FREESESSION(dev, sid) \
+	((*(dev)->methods.cryptodev_freesession)(dev, sid))
+#define CRYPTODEV_PROCESS(dev, crp, hint) \
+	((*(dev)->methods.cryptodev_process)(dev, crp, hint))
+#define CRYPTODEV_KPROCESS(dev, krp, hint) \
+	((*(dev)->methods.cryptodev_kprocess)(dev, krp, hint))
+
+#define device_get_name(dev)	((dev)->name)
+#define device_get_nameunit(dev)	((dev)->nameunit)
+#define device_get_unit(dev)	((dev)->unit)
+#define device_get_softc(dev)	((dev)->softc)
+
+#define	softc_device_decl \
+		struct ocf_device _device; \
+		device_t
+
+#define	softc_device_init(_sc, _name, _unit, _methods) \
+	if (1) {\
+	strncpy((_sc)->_device.name, _name, sizeof((_sc)->_device.name) - 1); \
+	snprintf((_sc)->_device.nameunit, sizeof((_sc)->_device.name), "%s%d", _name, _unit); \
+	(_sc)->_device.unit = _unit; \
+	(_sc)->_device.methods = _methods; \
+	(_sc)->_device.softc = (void *) _sc; \
+	*(device_t *)((softc_get_device(_sc))+1) = &(_sc)->_device; \
+	} else
+
+#define	softc_get_device(_sc)	(&(_sc)->_device)
+
+/*
+ * iomem support for 2.4 and 2.6 kernels
+ */
+#include <linux/version.h>
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+#define ocf_iomem_t	unsigned long
+
+/*
+ * implement simple workqueue like support for older kernels
+ */
+
+#include <linux/tqueue.h>
+
+#define work_struct tq_struct
+
+#define INIT_WORK(wp, fp, ap) \
+	do { \
+		(wp)->sync = 0; \
+		(wp)->routine = (fp); \
+		(wp)->data = (ap); \
+	} while (0)
+
+#define schedule_work(wp) \
+	do { \
+		queue_task((wp), &tq_immediate); \
+		mark_bh(IMMEDIATE_BH); \
+	} while (0)
+
+#define flush_scheduled_work()	run_task_queue(&tq_immediate)
+
+#else
+#define ocf_iomem_t	void __iomem *
+
+#include <linux/workqueue.h>
+
+#endif
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
+#include <linux/fdtable.h>
+#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11)
+#define files_fdtable(files)	(files)
+#endif
+
+#ifdef MODULE_PARM
+#undef module_param	/* just in case */
+#define	module_param(a,b,c)		MODULE_PARM(a,"i")
+#endif
+
+#define bzero(s,l)		memset(s,0,l)
+#define bcopy(s,d,l)	memcpy(d,s,l)
+#define bcmp(x, y, l)	memcmp(x,y,l)
+
+#define MIN(x,y)	((x) < (y) ? (x) : (y))
+
+#define device_printf(dev, a...) ({ \
+				printk("%s: ", device_get_nameunit(dev)); printk(a); \
+			})
+
+#undef printf
+#define printf(fmt...)	printk(fmt)
+
+#define KASSERT(c,p)	if (!(c)) { printk p ; } else
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+#define ocf_daemonize(str) \
+	daemonize(); \
+	spin_lock_irq(&current->sigmask_lock); \
+	sigemptyset(&current->blocked); \
+	recalc_sigpending(current); \
+	spin_unlock_irq(&current->sigmask_lock); \
+	sprintf(current->comm, str);
+#else
+#define ocf_daemonize(str) daemonize(str);
+#endif
+
+#define	TAILQ_INSERT_TAIL(q,d,m) list_add_tail(&(d)->m, (q))
+#define	TAILQ_EMPTY(q)	list_empty(q)
+#define	TAILQ_FOREACH(v, q, m) list_for_each_entry(v, q, m)
+
+#define read_random(p,l) get_random_bytes(p,l)
+
+#define DELAY(x)	((x) > 2000 ? mdelay((x)/1000) : udelay(x))
+#define strtoul simple_strtoul
+
+#define pci_get_vendor(dev)	((dev)->vendor)
+#define pci_get_device(dev)	((dev)->device)
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+#define pci_set_consistent_dma_mask(dev, mask) (0)
+#endif
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10)
+#define pci_dma_sync_single_for_cpu pci_dma_sync_single
+#endif
+
+#ifndef DMA_32BIT_MASK
+#define DMA_32BIT_MASK  0x00000000ffffffffULL
+#endif
+
+#define htole32(x)	cpu_to_le32(x)
+#define htobe32(x)	cpu_to_be32(x)
+#define htole16(x)	cpu_to_le16(x)
+#define htobe16(x)	cpu_to_be16(x)
+
+/* older kernels don't have these */
+
+#ifndef IRQ_NONE
+#define IRQ_NONE
+#define IRQ_HANDLED
+#define irqreturn_t void
+#endif
+#ifndef IRQF_SHARED
+#define IRQF_SHARED	SA_SHIRQ
+#endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+# define strlcpy(dest,src,len) \
+		({strncpy(dest,src,(len)-1); ((char *)dest)[(len)-1] = '\0'; })
+#endif
+
+#ifndef MAX_ERRNO
+#define MAX_ERRNO	4095
+#endif
+#ifndef IS_ERR_VALUE
+#define IS_ERR_VALUE(x) ((unsigned long)(x) >= (unsigned long)-MAX_ERRNO)
+#endif
+
+/*
+ * common debug for all
+ */
+#if 1
+#define dprintk(a...)	do { if (debug) printk(a); } while(0)
+#else
+#define dprintk(a...)
+#endif
+
+#ifndef SLAB_ATOMIC
+/* Changed in 2.6.20, must use GFP_ATOMIC now */
+#define	SLAB_ATOMIC	GFP_ATOMIC
+#endif
+
+/*
+ * need some additional support for older kernels */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,2)
+#define pci_register_driver_compat(driver, rc) \
+	do { \
+		if ((rc) > 0) { \
+			(rc) = 0; \
+		} else if (rc == 0) { \
+			(rc) = -ENODEV; \
+		} else { \
+			pci_unregister_driver(driver); \
+		} \
+	} while (0)
+#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10)
+#define pci_register_driver_compat(driver,rc) ((rc) = (rc) < 0 ? (rc) : 0)
+#else
+#define pci_register_driver_compat(driver,rc)
+#endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)
+
+#include <asm/scatterlist.h>
+
+static inline void sg_set_page(struct scatterlist *sg,  struct page *page,
+			       unsigned int len, unsigned int offset)
+{
+	sg->page = page;
+	sg->offset = offset;
+	sg->length = len;
+}
+
+static inline void *sg_virt(struct scatterlist *sg)
+{
+	return page_address(sg->page) + sg->offset;
+}
+
+#endif
+
+#endif /* __KERNEL__ */
+
+/****************************************************************************/
+#endif /* _BSD_COMPAT_H_ */
diff -Nur linux-2.6.29.1.orig/crypto/ocf/ocfnull/Makefile linux-2.6.29.1/crypto/ocf/ocfnull/Makefile
--- linux-2.6.29.1.orig/crypto/ocf/ocfnull/Makefile	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/ocfnull/Makefile	2009-04-20 20:01:21.552559545 +0200
@@ -0,0 +1,12 @@
+# for SGlinux builds
+-include $(ROOTDIR)/modules/.config
+
+obj-$(CONFIG_OCF_OCFNULL) += ocfnull.o
+
+obj ?= .
+EXTRA_CFLAGS += -I$(obj)/..
+
+ifdef TOPDIR
+-include $(TOPDIR)/Rules.make
+endif
+
diff -Nur linux-2.6.29.1.orig/crypto/ocf/ocfnull/ocfnull.c linux-2.6.29.1/crypto/ocf/ocfnull/ocfnull.c
--- linux-2.6.29.1.orig/crypto/ocf/ocfnull/ocfnull.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/ocfnull/ocfnull.c	2009-04-20 20:01:21.552559545 +0200
@@ -0,0 +1,203 @@
+/*
+ * An OCF module for determining the cost of crypto versus the cost of
+ * IPSec processing outside of OCF.  This modules gives us the effect of
+ * zero cost encryption,  of course you will need to run it at both ends
+ * since it does no crypto at all.
+ *
+ * Written by David McCullough <david_mccullough@securecomputing.com>
+ * Copyright (C) 2006-2007 David McCullough 
+ *
+ * LICENSE TERMS
+ *
+ * The free distribution and use of this software in both source and binary
+ * form is allowed (with or without changes) provided that:
+ *
+ *   1. distributions of this source code include the above copyright
+ *      notice, this list of conditions and the following disclaimer;
+ *
+ *   2. distributions in binary form include the above copyright
+ *      notice, this list of conditions and the following disclaimer
+ *      in the documentation and/or other associated materials;
+ *
+ *   3. the copyright holder's name is not used to endorse products
+ *      built using this software without specific written permission.
+ *
+ * ALTERNATIVELY, provided that this notice is retained in full, this product
+ * may be distributed under the terms of the GNU General Public License (GPL),
+ * in which case the provisions of the GPL apply INSTEAD OF those given above.
+ *
+ * DISCLAIMER
+ *
+ * This software is provided 'as is' with no explicit or implied warranties
+ * in respect of its properties, including, but not limited to, correctness
+ * and/or fitness for purpose.
+ */
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/wait.h>
+#include <linux/crypto.h>
+#include <linux/interrupt.h>
+
+#include <cryptodev.h>
+#include <uio.h>
+
+static int32_t			 null_id = -1;
+static u_int32_t		 null_sesnum = 0;
+
+static int null_process(device_t, struct cryptop *, int);
+static int null_newsession(device_t, u_int32_t *, struct cryptoini *);
+static int null_freesession(device_t, u_int64_t);
+
+#define debug ocfnull_debug
+int ocfnull_debug = 0;
+module_param(ocfnull_debug, int, 0644);
+MODULE_PARM_DESC(ocfnull_debug, "Enable debug");
+
+/*
+ * dummy device structure
+ */
+
+static struct {
+	softc_device_decl	sc_dev;
+} nulldev;
+
+static device_method_t null_methods = {
+	/* crypto device methods */
+	DEVMETHOD(cryptodev_newsession,	null_newsession),
+	DEVMETHOD(cryptodev_freesession,null_freesession),
+	DEVMETHOD(cryptodev_process,	null_process),
+};
+
+/*
+ * Generate a new software session.
+ */
+static int
+null_newsession(device_t arg, u_int32_t *sid, struct cryptoini *cri)
+{
+	dprintk("%s()\n", __FUNCTION__);
+	if (sid == NULL || cri == NULL) {
+		dprintk("%s,%d - EINVAL\n", __FILE__, __LINE__);
+		return EINVAL;
+	}
+
+	if (null_sesnum == 0)
+		null_sesnum++;
+	*sid = null_sesnum++;
+	return 0;
+}
+
+
+/*
+ * Free a session.
+ */
+static int
+null_freesession(device_t arg, u_int64_t tid)
+{
+	u_int32_t sid = CRYPTO_SESID2LID(tid);
+
+	dprintk("%s()\n", __FUNCTION__);
+	if (sid > null_sesnum) {
+		dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
+		return EINVAL;
+	}
+
+	/* Silently accept and return */
+	if (sid == 0)
+		return 0;
+	return 0;
+}
+
+
+/*
+ * Process a request.
+ */
+static int
+null_process(device_t arg, struct cryptop *crp, int hint)
+{
+	unsigned int lid;
+
+	dprintk("%s()\n", __FUNCTION__);
+
+	/* Sanity check */
+	if (crp == NULL) {
+		dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
+		return EINVAL;
+	}
+
+	crp->crp_etype = 0;
+
+	if (crp->crp_desc == NULL || crp->crp_buf == NULL) {
+		dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
+		crp->crp_etype = EINVAL;
+		goto done;
+	}
+
+	/*
+	 * find the session we are using
+	 */
+
+	lid = crp->crp_sid & 0xffffffff;
+	if (lid >= null_sesnum || lid == 0) {
+		crp->crp_etype = ENOENT;
+		dprintk("%s,%d: ENOENT\n", __FILE__, __LINE__);
+		goto done;
+	}
+
+done:
+	crypto_done(crp);
+	return 0;
+}
+
+
+/*
+ * our driver startup and shutdown routines
+ */
+
+static int
+null_init(void)
+{
+	dprintk("%s(%p)\n", __FUNCTION__, null_init);
+
+	memset(&nulldev, 0, sizeof(nulldev));
+	softc_device_init(&nulldev, "ocfnull", 0, null_methods);
+
+	null_id = crypto_get_driverid(softc_get_device(&nulldev),
+				CRYPTOCAP_F_HARDWARE);
+	if (null_id < 0)
+		panic("ocfnull: crypto device cannot initialize!");
+
+#define	REGISTER(alg) \
+	crypto_register(null_id,alg,0,0)
+	REGISTER(CRYPTO_DES_CBC);
+	REGISTER(CRYPTO_3DES_CBC);
+	REGISTER(CRYPTO_RIJNDAEL128_CBC);
+	REGISTER(CRYPTO_MD5);
+	REGISTER(CRYPTO_SHA1);
+	REGISTER(CRYPTO_MD5_HMAC);
+	REGISTER(CRYPTO_SHA1_HMAC);
+#undef REGISTER
+
+	return 0;
+}
+
+static void
+null_exit(void)
+{
+	dprintk("%s()\n", __FUNCTION__);
+	crypto_unregister_all(null_id);
+	null_id = -1;
+}
+
+module_init(null_init);
+module_exit(null_exit);
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("David McCullough <david_mccullough@securecomputing.com>");
+MODULE_DESCRIPTION("ocfnull - claims a lot but does nothing");
diff -Nur linux-2.6.29.1.orig/crypto/ocf/pasemi/Makefile linux-2.6.29.1/crypto/ocf/pasemi/Makefile
--- linux-2.6.29.1.orig/crypto/ocf/pasemi/Makefile	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/pasemi/Makefile	2009-04-20 20:01:21.556559496 +0200
@@ -0,0 +1,12 @@
+# for SGlinux builds
+-include $(ROOTDIR)/modules/.config
+
+obj-$(CONFIG_OCF_PASEMI) += pasemi.o
+
+obj ?= .
+EXTRA_CFLAGS += -I$(obj)/.. -I$(obj)/
+
+ifdef TOPDIR
+-include $(TOPDIR)/Rules.make
+endif
+
diff -Nur linux-2.6.29.1.orig/crypto/ocf/pasemi/pasemi.c linux-2.6.29.1/crypto/ocf/pasemi/pasemi.c
--- linux-2.6.29.1.orig/crypto/ocf/pasemi/pasemi.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/pasemi/pasemi.c	2009-04-20 20:01:21.556559496 +0200
@@ -0,0 +1,1009 @@
+/*
+ * Copyright (C) 2007 PA Semi, Inc
+ *
+ * Driver for the PA Semi PWRficient DMA Crypto Engine
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/timer.h>
+#include <linux/random.h>
+#include <linux/skbuff.h>
+#include <asm/scatterlist.h>
+#include <linux/moduleparam.h>
+#include <linux/pci.h>
+#include <cryptodev.h>
+#include <uio.h>
+#include "pasemi_fnu.h"
+
+#define DRV_NAME "pasemi"
+
+#define TIMER_INTERVAL 1000
+
+static void __devexit pasemi_dma_remove(struct pci_dev *pdev);
+static struct pasdma_status volatile * dma_status;
+
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "Enable debug");
+
+static void pasemi_desc_start(struct pasemi_desc *desc, u64 hdr)
+{
+	desc->postop = 0;
+	desc->quad[0] = hdr;
+	desc->quad_cnt = 1;
+	desc->size = 1;
+}
+
+static void pasemi_desc_build(struct pasemi_desc *desc, u64 val)
+{
+	desc->quad[desc->quad_cnt++] = val;
+	desc->size = (desc->quad_cnt + 1) / 2;
+}
+
+static void pasemi_desc_hdr(struct pasemi_desc *desc, u64 hdr)
+{
+	desc->quad[0] |= hdr;
+}
+
+static int pasemi_desc_size(struct pasemi_desc *desc)
+{
+	return desc->size;
+}
+
+static void pasemi_ring_add_desc(
+				 struct pasemi_fnu_txring *ring,
+				 struct pasemi_desc *desc,
+				 struct cryptop *crp) {
+	int i;
+	int ring_index = 2 * (ring->next_to_fill & (TX_RING_SIZE-1));
+
+	TX_DESC_INFO(ring, ring->next_to_fill).desc_size = desc->size;
+	TX_DESC_INFO(ring, ring->next_to_fill).desc_postop = desc->postop;
+	TX_DESC_INFO(ring, ring->next_to_fill).cf_crp = crp;
+
+	for (i = 0; i < desc->quad_cnt; i += 2) {
+		ring_index = 2 * (ring->next_to_fill & (TX_RING_SIZE-1));
+		ring->desc[ring_index] = desc->quad[i];
+		ring->desc[ring_index + 1] = desc->quad[i + 1];
+		ring->next_to_fill++;
+	}
+
+	if (desc->quad_cnt & 1)
+		ring->desc[ring_index + 1] = 0;
+}
+
+static void pasemi_ring_incr(struct pasemi_softc *sc, int chan_index, int incr)
+{
+	out_le32(sc->dma_regs + PAS_DMA_TXCHAN_INCR(sc->base_chan + chan_index),
+		 incr);
+}
+
+/*
+ * Generate a new software session.
+ */
+static int
+pasemi_newsession(device_t dev, u_int32_t *sidp, struct cryptoini *cri)
+{
+	struct cryptoini *c, *encini = NULL, *macini = NULL;
+	struct pasemi_softc *sc = device_get_softc(dev);
+	struct pasemi_session *ses = NULL, **sespp;
+	int sesn, blksz = 0;
+	u64 ccmd = 0;
+	unsigned long flags;
+	struct pasemi_desc init_desc;
+	struct pasemi_fnu_txring *txring;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+	if (sidp == NULL || cri == NULL || sc == NULL) {
+		DPRINTF("%s,%d - EINVAL\n", __FILE__, __LINE__);
+		return -EINVAL;
+	}
+	for (c = cri; c != NULL; c = c->cri_next) {
+		if (ALG_IS_SIG(c->cri_alg)) {
+			if (macini)
+				return -EINVAL;
+			macini = c;
+		} else if (ALG_IS_CIPHER(c->cri_alg)) {
+			if (encini)
+				return -EINVAL;
+			encini = c;
+		} else {
+			DPRINTF("UNKNOWN c->cri_alg %d\n", c->cri_alg);
+			return -EINVAL;
+		}
+	}
+	if (encini == NULL && macini == NULL)
+		return -EINVAL;
+	if (encini) {
+		/* validate key length */
+		switch (encini->cri_alg) {
+		case CRYPTO_DES_CBC:
+			if (encini->cri_klen != 64)
+				return -EINVAL;
+			ccmd = DMA_CALGO_DES;
+			break;
+		case CRYPTO_3DES_CBC:
+			if (encini->cri_klen != 192)
+				return -EINVAL;
+			ccmd = DMA_CALGO_3DES;
+			break;
+		case CRYPTO_AES_CBC:
+			if (encini->cri_klen != 128 &&
+			    encini->cri_klen != 192 &&
+			    encini->cri_klen != 256)
+				return -EINVAL;
+			ccmd = DMA_CALGO_AES;
+			break;
+		case CRYPTO_ARC4:
+			if (encini->cri_klen != 128)
+				return -EINVAL;
+			ccmd = DMA_CALGO_ARC;
+			break;
+		default:
+			DPRINTF("UNKNOWN encini->cri_alg %d\n",
+				encini->cri_alg);
+			return -EINVAL;
+		}
+	}
+
+	if (macini) {
+		switch (macini->cri_alg) {
+		case CRYPTO_MD5:
+		case CRYPTO_MD5_HMAC:
+			blksz = 16;
+			break;
+		case CRYPTO_SHA1:
+		case CRYPTO_SHA1_HMAC:
+			blksz = 20;
+			break;
+		default:
+			DPRINTF("UNKNOWN macini->cri_alg %d\n",
+				macini->cri_alg);
+			return -EINVAL;
+		}
+		if (((macini->cri_klen + 7) / 8) > blksz) {
+			DPRINTF("key length %d bigger than blksize %d not supported\n",
+				((macini->cri_klen + 7) / 8), blksz);
+			return -EINVAL;
+		}
+	}
+
+	for (sesn = 0; sesn < sc->sc_nsessions; sesn++) {
+		if (sc->sc_sessions[sesn] == NULL) {
+			sc->sc_sessions[sesn] = (struct pasemi_session *)
+				kzalloc(sizeof(struct pasemi_session), GFP_ATOMIC);
+			ses = sc->sc_sessions[sesn];
+			break;
+		} else if (sc->sc_sessions[sesn]->used == 0) {
+			ses = sc->sc_sessions[sesn];
+			break;
+		}
+	}
+
+	if (ses == NULL) {
+		sespp = (struct pasemi_session **)
+			kzalloc(sc->sc_nsessions * 2 *
+				sizeof(struct pasemi_session *), GFP_ATOMIC);
+		if (sespp == NULL)
+			return -ENOMEM;
+		memcpy(sespp, sc->sc_sessions,
+		       sc->sc_nsessions * sizeof(struct pasemi_session *));
+		kfree(sc->sc_sessions);
+		sc->sc_sessions = sespp;
+		sesn = sc->sc_nsessions;
+		ses = sc->sc_sessions[sesn] = (struct pasemi_session *)
+			kzalloc(sizeof(struct pasemi_session), GFP_ATOMIC);
+		if (ses == NULL)
+			return -ENOMEM;
+		sc->sc_nsessions *= 2;
+	}
+
+	ses->used = 1;
+
+	ses->dma_addr = pci_map_single(sc->dma_pdev, (void *) ses->civ,
+				       sizeof(struct pasemi_session), DMA_TO_DEVICE);
+
+	/* enter the channel scheduler */
+	spin_lock_irqsave(&sc->sc_chnlock, flags);
+
+	/* ARC4 has to be processed by the even channel */
+	if (encini && (encini->cri_alg == CRYPTO_ARC4))
+		ses->chan = sc->sc_lastchn & ~1;
+	else
+		ses->chan = sc->sc_lastchn;
+	sc->sc_lastchn = (sc->sc_lastchn + 1) % sc->sc_num_channels;
+
+	spin_unlock_irqrestore(&sc->sc_chnlock, flags);
+
+	txring = &sc->tx[ses->chan];
+
+	if (encini) {
+		ses->ccmd = ccmd;
+
+		/* get an IV */
+		/* XXX may read fewer than requested */
+		get_random_bytes(ses->civ, sizeof(ses->civ));
+
+		ses->keysz = (encini->cri_klen - 63) / 64;
+		memcpy(ses->key, encini->cri_key, (ses->keysz + 1) * 8);
+
+		pasemi_desc_start(&init_desc,
+				  XCT_CTRL_HDR(ses->chan, (encini && macini) ? 0x68 : 0x40, DMA_FN_CIV0));
+		pasemi_desc_build(&init_desc,
+				  XCT_FUN_SRC_PTR((encini && macini) ? 0x68 : 0x40, ses->dma_addr));
+	}
+	if (macini) {
+		if (macini->cri_alg == CRYPTO_MD5_HMAC ||
+		    macini->cri_alg == CRYPTO_SHA1_HMAC)
+			memcpy(ses->hkey, macini->cri_key, blksz);
+		else {
+			/* Load initialization constants(RFC 1321, 3174) */
+			ses->hiv[0] = 0x67452301efcdab89ULL;
+			ses->hiv[1] = 0x98badcfe10325476ULL;
+			ses->hiv[2] = 0xc3d2e1f000000000ULL;
+		}
+		ses->hseq = 0ULL;
+	}
+
+	spin_lock_irqsave(&txring->fill_lock, flags);
+
+	if (((txring->next_to_fill + pasemi_desc_size(&init_desc)) -
+	     txring->next_to_clean) > TX_RING_SIZE) {
+		spin_unlock_irqrestore(&txring->fill_lock, flags);
+		return ERESTART;
+	}
+
+	if (encini) {
+		pasemi_ring_add_desc(txring, &init_desc, NULL);
+		pasemi_ring_incr(sc, ses->chan,
+				 pasemi_desc_size(&init_desc));
+	}
+
+	txring->sesn = sesn;
+	spin_unlock_irqrestore(&txring->fill_lock, flags);
+
+	*sidp = PASEMI_SID(sesn);
+	return 0;
+}
+
+/*
+ * Deallocate a session.
+ */
+static int
+pasemi_freesession(device_t dev, u_int64_t tid)
+{
+	struct pasemi_softc *sc = device_get_softc(dev);
+	int session;
+	u_int32_t sid = ((u_int32_t) tid) & 0xffffffff;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	if (sc == NULL)
+		return -EINVAL;
+	session = PASEMI_SESSION(sid);
+	if (session >= sc->sc_nsessions || !sc->sc_sessions[session])
+		return -EINVAL;
+
+	pci_unmap_single(sc->dma_pdev,
+			 sc->sc_sessions[session]->dma_addr,
+			 sizeof(struct pasemi_session), DMA_TO_DEVICE);
+	memset(sc->sc_sessions[session], 0,
+	       sizeof(struct pasemi_session));
+
+	return 0;
+}
+
+static int
+pasemi_process(device_t dev, struct cryptop *crp, int hint)
+{
+
+	int err = 0, ivsize, srclen = 0, reinit = 0, reinit_size = 0, chsel;
+	struct pasemi_softc *sc = device_get_softc(dev);
+	struct cryptodesc *crd1, *crd2, *maccrd, *enccrd;
+	caddr_t ivp;
+	struct pasemi_desc init_desc, work_desc;
+	struct pasemi_session *ses;
+	struct sk_buff *skb;
+	struct uio *uiop;
+	unsigned long flags;
+	struct pasemi_fnu_txring *txring;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	if (crp == NULL || crp->crp_callback == NULL || sc == NULL)
+		return -EINVAL;
+
+	crp->crp_etype = 0;
+	if (PASEMI_SESSION(crp->crp_sid) >= sc->sc_nsessions)
+		return -EINVAL;
+
+	ses = sc->sc_sessions[PASEMI_SESSION(crp->crp_sid)];
+
+	crd1 = crp->crp_desc;
+	if (crd1 == NULL) {
+		err = -EINVAL;
+		goto errout;
+	}
+	crd2 = crd1->crd_next;
+
+	if (ALG_IS_SIG(crd1->crd_alg)) {
+		maccrd = crd1;
+		if (crd2 == NULL)
+			enccrd = NULL;
+		else if (ALG_IS_CIPHER(crd2->crd_alg) &&
+			 (crd2->crd_flags & CRD_F_ENCRYPT) == 0)
+			enccrd = crd2;
+		else
+			goto erralg;
+	} else if (ALG_IS_CIPHER(crd1->crd_alg)) {
+		enccrd = crd1;
+		if (crd2 == NULL)
+			maccrd = NULL;
+		else if (ALG_IS_SIG(crd2->crd_alg) &&
+			 (crd1->crd_flags & CRD_F_ENCRYPT))
+			maccrd = crd2;
+		else
+			goto erralg;
+	} else
+		goto erralg;
+
+	chsel = ses->chan;
+
+	txring = &sc->tx[chsel];
+
+	if (enccrd && !maccrd) {
+		if (enccrd->crd_alg == CRYPTO_ARC4)
+			reinit = 1;
+		reinit_size = 0x40;
+		srclen = crp->crp_ilen;
+
+		pasemi_desc_start(&work_desc, XCT_FUN_O | XCT_FUN_I
+				  | XCT_FUN_FUN(chsel));
+		if (enccrd->crd_flags & CRD_F_ENCRYPT)
+			pasemi_desc_hdr(&work_desc, XCT_FUN_CRM_ENC);
+		else
+			pasemi_desc_hdr(&work_desc, XCT_FUN_CRM_DEC);
+	} else if (enccrd && maccrd) {
+		if (enccrd->crd_alg == CRYPTO_ARC4)
+			reinit = 1;
+		reinit_size = 0x68;
+
+		if (enccrd->crd_flags & CRD_F_ENCRYPT) {
+			/* Encrypt -> Authenticate */
+			pasemi_desc_start(&work_desc, XCT_FUN_O | XCT_FUN_I | XCT_FUN_CRM_ENC_SIG
+					  | XCT_FUN_A | XCT_FUN_FUN(chsel));
+			srclen = maccrd->crd_skip + maccrd->crd_len;
+		} else {
+			/* Authenticate -> Decrypt */
+			pasemi_desc_start(&work_desc, XCT_FUN_O | XCT_FUN_I | XCT_FUN_CRM_SIG_DEC
+					  | XCT_FUN_24BRES | XCT_FUN_FUN(chsel));
+			pasemi_desc_build(&work_desc, 0);
+			pasemi_desc_build(&work_desc, 0);
+			pasemi_desc_build(&work_desc, 0);
+			work_desc.postop = PASEMI_CHECK_SIG;
+			srclen = crp->crp_ilen;
+		}
+
+		pasemi_desc_hdr(&work_desc, XCT_FUN_SHL(maccrd->crd_skip / 4));
+		pasemi_desc_hdr(&work_desc, XCT_FUN_CHL(enccrd->crd_skip - maccrd->crd_skip));
+	} else if (!enccrd && maccrd) {
+		srclen = maccrd->crd_len;
+
+		pasemi_desc_start(&init_desc,
+				  XCT_CTRL_HDR(chsel, 0x58, DMA_FN_HKEY0));
+		pasemi_desc_build(&init_desc,
+				  XCT_FUN_SRC_PTR(0x58, ((struct pasemi_session *)ses->dma_addr)->hkey));
+
+		pasemi_desc_start(&work_desc, XCT_FUN_O | XCT_FUN_I | XCT_FUN_CRM_SIG
+				  | XCT_FUN_A | XCT_FUN_FUN(chsel));
+	}
+
+	if (enccrd) {
+		switch (enccrd->crd_alg) {
+		case CRYPTO_3DES_CBC:
+			pasemi_desc_hdr(&work_desc, XCT_FUN_ALG_3DES |
+					XCT_FUN_BCM_CBC);
+			ivsize = sizeof(u64);
+			break;
+		case CRYPTO_DES_CBC:
+			pasemi_desc_hdr(&work_desc, XCT_FUN_ALG_DES |
+					XCT_FUN_BCM_CBC);
+			ivsize = sizeof(u64);
+			break;
+		case CRYPTO_AES_CBC:
+			pasemi_desc_hdr(&work_desc, XCT_FUN_ALG_AES |
+					XCT_FUN_BCM_CBC);
+			ivsize = 2 * sizeof(u64);
+			break;
+		case CRYPTO_ARC4:
+			pasemi_desc_hdr(&work_desc, XCT_FUN_ALG_ARC);
+			ivsize = 0;
+			break;
+		default:
+			printk(DRV_NAME ": unimplemented enccrd->crd_alg %d\n",
+			       enccrd->crd_alg);
+			err = -EINVAL;
+			goto errout;
+		}
+
+		ivp = (ivsize == sizeof(u64)) ? (caddr_t) &ses->civ[1] : (caddr_t) &ses->civ[0];
+		if (enccrd->crd_flags & CRD_F_ENCRYPT) {
+			if (enccrd->crd_flags & CRD_F_IV_EXPLICIT)
+				memcpy(ivp, enccrd->crd_iv, ivsize);
+			/* If IV is not present in the buffer already, it has to be copied there */
+			if ((enccrd->crd_flags & CRD_F_IV_PRESENT) == 0)
+				crypto_copyback(crp->crp_flags, crp->crp_buf,
+						enccrd->crd_inject, ivsize, ivp);
+		} else {
+			if (enccrd->crd_flags & CRD_F_IV_EXPLICIT)
+				/* IV is provided expicitly in descriptor */
+				memcpy(ivp, enccrd->crd_iv, ivsize);
+			else
+				/* IV is provided in the packet */
+				crypto_copydata(crp->crp_flags, crp->crp_buf,
+						enccrd->crd_inject, ivsize,
+						ivp);
+		}
+	}
+
+	if (maccrd) {
+		switch (maccrd->crd_alg) {
+		case CRYPTO_MD5:
+			pasemi_desc_hdr(&work_desc, XCT_FUN_SIG_MD5 |
+					XCT_FUN_HSZ((crp->crp_ilen - maccrd->crd_inject) / 4));
+			break;
+		case CRYPTO_SHA1:
+			pasemi_desc_hdr(&work_desc, XCT_FUN_SIG_SHA1 |
+					XCT_FUN_HSZ((crp->crp_ilen - maccrd->crd_inject) / 4));
+			break;
+		case CRYPTO_MD5_HMAC:
+			pasemi_desc_hdr(&work_desc, XCT_FUN_SIG_HMAC_MD5 |
+					XCT_FUN_HSZ((crp->crp_ilen - maccrd->crd_inject) / 4));
+			break;
+		case CRYPTO_SHA1_HMAC:
+			pasemi_desc_hdr(&work_desc, XCT_FUN_SIG_HMAC_SHA1 |
+					XCT_FUN_HSZ((crp->crp_ilen - maccrd->crd_inject) / 4));
+			break;
+		default:
+			printk(DRV_NAME ": unimplemented maccrd->crd_alg %d\n",
+			       maccrd->crd_alg);
+			err = -EINVAL;
+			goto errout;
+		}
+	}
+
+	if (crp->crp_flags & CRYPTO_F_SKBUF) {
+		/* using SKB buffers */
+		skb = (struct sk_buff *)crp->crp_buf;
+		if (skb_shinfo(skb)->nr_frags) {
+			printk(DRV_NAME ": skb frags unimplemented\n");
+			err = -EINVAL;
+			goto errout;
+		}
+		pasemi_desc_build(
+			&work_desc,
+			XCT_FUN_DST_PTR(skb->len, pci_map_single(
+						sc->dma_pdev, skb->data,
+						skb->len, DMA_TO_DEVICE)));
+		pasemi_desc_build(
+			&work_desc,
+			XCT_FUN_SRC_PTR(
+				srclen, pci_map_single(
+					sc->dma_pdev, skb->data,
+					srclen, DMA_TO_DEVICE)));
+		pasemi_desc_hdr(&work_desc, XCT_FUN_LLEN(srclen));
+	} else if (crp->crp_flags & CRYPTO_F_IOV) {
+		/* using IOV buffers */
+		uiop = (struct uio *)crp->crp_buf;
+		if (uiop->uio_iovcnt > 1) {
+			printk(DRV_NAME ": iov frags unimplemented\n");
+			err = -EINVAL;
+			goto errout;
+		}
+
+		/* crp_olen is never set; always use crp_ilen */
+		pasemi_desc_build(
+			&work_desc,
+			XCT_FUN_DST_PTR(crp->crp_ilen, pci_map_single(
+						sc->dma_pdev,
+						uiop->uio_iov->iov_base,
+						crp->crp_ilen, DMA_TO_DEVICE)));
+		pasemi_desc_hdr(&work_desc, XCT_FUN_LLEN(srclen));
+
+		pasemi_desc_build(
+			&work_desc,
+			XCT_FUN_SRC_PTR(srclen, pci_map_single(
+						sc->dma_pdev,
+						uiop->uio_iov->iov_base,
+						srclen, DMA_TO_DEVICE)));
+	} else {
+		/* using contig buffers */
+		pasemi_desc_build(
+			&work_desc,
+			XCT_FUN_DST_PTR(crp->crp_ilen, pci_map_single(
+						sc->dma_pdev,
+						crp->crp_buf,
+						crp->crp_ilen, DMA_TO_DEVICE)));
+		pasemi_desc_build(
+			&work_desc,
+			XCT_FUN_SRC_PTR(srclen, pci_map_single(
+						sc->dma_pdev,
+						crp->crp_buf, srclen,
+						DMA_TO_DEVICE)));
+		pasemi_desc_hdr(&work_desc, XCT_FUN_LLEN(srclen));
+	}
+
+	spin_lock_irqsave(&txring->fill_lock, flags);
+
+	if (txring->sesn != PASEMI_SESSION(crp->crp_sid)) {
+		txring->sesn = PASEMI_SESSION(crp->crp_sid);
+		reinit = 1;
+	}
+
+	if (enccrd) {
+		pasemi_desc_start(&init_desc,
+				  XCT_CTRL_HDR(chsel, reinit ? reinit_size : 0x10, DMA_FN_CIV0));
+		pasemi_desc_build(&init_desc,
+				  XCT_FUN_SRC_PTR(reinit ? reinit_size : 0x10, ses->dma_addr));
+	}
+
+	if (((txring->next_to_fill + pasemi_desc_size(&init_desc) +
+	      pasemi_desc_size(&work_desc)) -
+	     txring->next_to_clean) > TX_RING_SIZE) {
+		spin_unlock_irqrestore(&txring->fill_lock, flags);
+		err = ERESTART;
+		goto errout;
+	}
+
+	pasemi_ring_add_desc(txring, &init_desc, NULL);
+	pasemi_ring_add_desc(txring, &work_desc, crp);
+
+	pasemi_ring_incr(sc, chsel,
+			 pasemi_desc_size(&init_desc) +
+			 pasemi_desc_size(&work_desc));
+
+	spin_unlock_irqrestore(&txring->fill_lock, flags);
+
+	mod_timer(&txring->crypto_timer, jiffies + TIMER_INTERVAL);
+
+	return 0;
+
+erralg:
+	printk(DRV_NAME ": unsupported algorithm or algorithm order alg1 %d alg2 %d\n",
+	       crd1->crd_alg, crd2->crd_alg);
+	err = -EINVAL;
+
+errout:
+	if (err != ERESTART) {
+		crp->crp_etype = err;
+		crypto_done(crp);
+	}
+	return err;
+}
+
+static int pasemi_clean_tx(struct pasemi_softc *sc, int chan)
+{
+	int i, j, ring_idx;
+	struct pasemi_fnu_txring *ring = &sc->tx[chan];
+	u16 delta_cnt;
+	int flags, loops = 10;
+	int desc_size;
+	struct cryptop *crp;
+
+	spin_lock_irqsave(&ring->clean_lock, flags);
+
+	while ((delta_cnt = (dma_status->tx_sta[sc->base_chan + chan]
+			     & PAS_STATUS_PCNT_M) - ring->total_pktcnt)
+	       && loops--) {
+
+		for (i = 0; i < delta_cnt; i++) {
+			desc_size = TX_DESC_INFO(ring, ring->next_to_clean).desc_size;
+			crp = TX_DESC_INFO(ring, ring->next_to_clean).cf_crp;
+			if (crp) {
+				ring_idx = 2 * (ring->next_to_clean & (TX_RING_SIZE-1));
+				if (TX_DESC_INFO(ring, ring->next_to_clean).desc_postop & PASEMI_CHECK_SIG) {
+					/* Need to make sure signature matched,
+					 * if not - return error */
+					if (!(ring->desc[ring_idx + 1] & (1ULL << 63)))
+						crp->crp_etype = -EINVAL;
+				}
+				crypto_done(TX_DESC_INFO(ring,
+							 ring->next_to_clean).cf_crp);
+				TX_DESC_INFO(ring, ring->next_to_clean).cf_crp = NULL;
+				pci_unmap_single(
+					sc->dma_pdev,
+					XCT_PTR_ADDR_LEN(ring->desc[ring_idx + 1]),
+					PCI_DMA_TODEVICE);
+
+				ring->desc[ring_idx] = ring->desc[ring_idx + 1] = 0;
+
+				ring->next_to_clean++;
+				for (j = 1; j < desc_size; j++) {
+					ring_idx = 2 *
+						(ring->next_to_clean &
+						 (TX_RING_SIZE-1));
+					pci_unmap_single(
+						sc->dma_pdev,
+						XCT_PTR_ADDR_LEN(ring->desc[ring_idx]),
+						PCI_DMA_TODEVICE);
+					if (ring->desc[ring_idx + 1])
+						pci_unmap_single(
+							sc->dma_pdev,
+							XCT_PTR_ADDR_LEN(
+								ring->desc[
+									ring_idx + 1]),
+							PCI_DMA_TODEVICE);
+					ring->desc[ring_idx] =
+						ring->desc[ring_idx + 1] = 0;
+					ring->next_to_clean++;
+				}
+			} else {
+				for (j = 0; j < desc_size; j++) {
+					ring_idx = 2 * (ring->next_to_clean & (TX_RING_SIZE-1));
+					ring->desc[ring_idx] =
+						ring->desc[ring_idx + 1] = 0;
+					ring->next_to_clean++;
+				}
+			}
+		}
+
+		ring->total_pktcnt += delta_cnt;
+	}
+	spin_unlock_irqrestore(&ring->clean_lock, flags);
+
+	return 0;
+}
+
+static void sweepup_tx(struct pasemi_softc *sc)
+{
+	int i;
+
+	for (i = 0; i < sc->sc_num_channels; i++)
+		pasemi_clean_tx(sc, i);
+}
+
+static irqreturn_t pasemi_intr(int irq, void *arg, struct pt_regs *regs)
+{
+	struct pasemi_softc *sc = arg;
+	unsigned int reg;
+	int chan = irq - sc->base_irq;
+	int chan_index = sc->base_chan + chan;
+	u64 stat = dma_status->tx_sta[chan_index];
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	if (!(stat & PAS_STATUS_CAUSE_M))
+		return IRQ_NONE;
+
+	pasemi_clean_tx(sc, chan);
+
+	stat = dma_status->tx_sta[chan_index];
+
+	reg = PAS_IOB_DMA_TXCH_RESET_PINTC |
+		PAS_IOB_DMA_TXCH_RESET_PCNT(sc->tx[chan].total_pktcnt);
+
+	if (stat & PAS_STATUS_SOFT)
+		reg |= PAS_IOB_DMA_RXCH_RESET_SINTC;
+
+	out_le32(sc->iob_regs + PAS_IOB_DMA_TXCH_RESET(chan_index), reg);
+
+
+	return IRQ_HANDLED;
+}
+
+static int pasemi_dma_setup_tx_resources(struct pasemi_softc *sc, int chan)
+{
+	u32 val;
+	int chan_index = chan + sc->base_chan;
+	int ret;
+	struct pasemi_fnu_txring *ring;
+
+	ring = &sc->tx[chan];
+
+	spin_lock_init(&ring->fill_lock);
+	spin_lock_init(&ring->clean_lock);
+
+	ring->desc_info = kzalloc(sizeof(struct pasemi_desc_info) *
+				  TX_RING_SIZE, GFP_KERNEL);
+	if (!ring->desc_info)
+		return -ENOMEM;
+
+	/* Allocate descriptors */
+	ring->desc = dma_alloc_coherent(&sc->dma_pdev->dev,
+					TX_RING_SIZE *
+					2 * sizeof(u64),
+					&ring->dma, GFP_KERNEL);
+	if (!ring->desc)
+		return -ENOMEM;
+
+	memset((void *) ring->desc, 0, TX_RING_SIZE * 2 * sizeof(u64));
+
+	out_le32(sc->iob_regs + PAS_IOB_DMA_TXCH_RESET(chan_index), 0x30);
+
+	ring->total_pktcnt = 0;
+
+	out_le32(sc->dma_regs + PAS_DMA_TXCHAN_BASEL(chan_index),
+		 PAS_DMA_TXCHAN_BASEL_BRBL(ring->dma));
+
+	val = PAS_DMA_TXCHAN_BASEU_BRBH(ring->dma >> 32);
+	val |= PAS_DMA_TXCHAN_BASEU_SIZ(TX_RING_SIZE >> 2);
+
+	out_le32(sc->dma_regs + PAS_DMA_TXCHAN_BASEU(chan_index), val);
+
+	out_le32(sc->dma_regs + PAS_DMA_TXCHAN_CFG(chan_index),
+		 PAS_DMA_TXCHAN_CFG_TY_FUNC |
+		 PAS_DMA_TXCHAN_CFG_TATTR(chan) |
+		 PAS_DMA_TXCHAN_CFG_WT(2));
+
+	/* enable tx channel */
+	out_le32(sc->dma_regs +
+		 PAS_DMA_TXCHAN_TCMDSTA(chan_index),
+		 PAS_DMA_TXCHAN_TCMDSTA_EN);
+
+	out_le32(sc->iob_regs + PAS_IOB_DMA_TXCH_CFG(chan_index),
+		 PAS_IOB_DMA_TXCH_CFG_CNTTH(1000));
+
+	ring->next_to_fill = 0;
+	ring->next_to_clean = 0;
+
+	snprintf(ring->irq_name, sizeof(ring->irq_name),
+		 "%s%d", "crypto", chan);
+
+	ring->irq = irq_create_mapping(NULL, sc->base_irq + chan);
+	ret = request_irq(ring->irq, (irq_handler_t)
+			  pasemi_intr, IRQF_DISABLED, ring->irq_name, sc);
+	if (ret) {
+		printk(KERN_ERR DRV_NAME ": failed to hook irq %d ret %d\n",
+		       ring->irq, ret);
+		ring->irq = -1;
+		return ret;
+	}
+
+	setup_timer(&ring->crypto_timer, (void *) sweepup_tx, (unsigned long) sc);
+
+	return 0;
+}
+
+static device_method_t pasemi_methods = {
+	/* crypto device methods */
+	DEVMETHOD(cryptodev_newsession,		pasemi_newsession),
+	DEVMETHOD(cryptodev_freesession,	pasemi_freesession),
+	DEVMETHOD(cryptodev_process,		pasemi_process),
+};
+
+/* Set up the crypto device structure, private data,
+ * and anything else we need before we start */
+
+static int __devinit
+pasemi_dma_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+	struct pasemi_softc *sc;
+	int ret, i;
+
+	DPRINTF(KERN_ERR "%s()\n", __FUNCTION__);
+
+	sc = kzalloc(sizeof(*sc), GFP_KERNEL);
+	if (!sc)
+		return -ENOMEM;
+
+	softc_device_init(sc, DRV_NAME, 1, pasemi_methods);
+
+	pci_set_drvdata(pdev, sc);
+
+	spin_lock_init(&sc->sc_chnlock);
+
+	sc->sc_sessions = (struct pasemi_session **)
+		kzalloc(PASEMI_INITIAL_SESSIONS *
+			sizeof(struct pasemi_session *), GFP_ATOMIC);
+	if (sc->sc_sessions == NULL) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	sc->sc_nsessions = PASEMI_INITIAL_SESSIONS;
+	sc->sc_lastchn = 0;
+	sc->base_irq = pdev->irq + 6;
+	sc->base_chan = 6;
+	sc->sc_cid = -1;
+	sc->dma_pdev = pdev;
+
+	sc->iob_pdev = pci_get_device(PCI_VENDOR_ID_PASEMI, 0xa001, NULL);
+	if (!sc->iob_pdev) {
+		dev_err(&pdev->dev, "Can't find I/O Bridge\n");
+		ret = -ENODEV;
+		goto out;
+	}
+
+	/* This is hardcoded and ugly, but we have some firmware versions
+	 * who don't provide the register space in the device tree. Luckily
+	 * they are at well-known locations so we can just do the math here.
+	 */
+	sc->dma_regs =
+		ioremap(0xe0000000 + (sc->dma_pdev->devfn << 12), 0x2000);
+	sc->iob_regs =
+		ioremap(0xe0000000 + (sc->iob_pdev->devfn << 12), 0x2000);
+	if (!sc->dma_regs || !sc->iob_regs) {
+		dev_err(&pdev->dev, "Can't map registers\n");
+		ret = -ENODEV;
+		goto out;
+	}
+
+	dma_status = __ioremap(0xfd800000, 0x1000, 0);
+	if (!dma_status) {
+		ret = -ENODEV;
+		dev_err(&pdev->dev, "Can't map dmastatus space\n");
+		goto out;
+	}
+
+	sc->tx = (struct pasemi_fnu_txring *)
+		kzalloc(sizeof(struct pasemi_fnu_txring)
+			* 8, GFP_KERNEL);
+	if (!sc->tx) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	/* Initialize the h/w */
+	out_le32(sc->dma_regs + PAS_DMA_COM_CFG,
+		 (in_le32(sc->dma_regs + PAS_DMA_COM_CFG) |
+		  PAS_DMA_COM_CFG_FWF));
+	out_le32(sc->dma_regs + PAS_DMA_COM_TXCMD, PAS_DMA_COM_TXCMD_EN);
+
+	for (i = 0; i < PASEMI_FNU_CHANNELS; i++) {
+		sc->sc_num_channels++;
+		ret = pasemi_dma_setup_tx_resources(sc, i);
+		if (ret)
+			goto out;
+	}
+
+	sc->sc_cid = crypto_get_driverid(softc_get_device(sc),
+					 CRYPTOCAP_F_HARDWARE);
+	if (sc->sc_cid < 0) {
+		printk(KERN_ERR DRV_NAME ": could not get crypto driver id\n");
+		ret = -ENXIO;
+		goto out;
+	}
+
+	/* register algorithms with the framework */
+	printk(DRV_NAME ":");
+
+	crypto_register(sc->sc_cid, CRYPTO_DES_CBC, 0, 0);
+	crypto_register(sc->sc_cid, CRYPTO_3DES_CBC, 0, 0);
+	crypto_register(sc->sc_cid, CRYPTO_AES_CBC, 0, 0);
+	crypto_register(sc->sc_cid, CRYPTO_ARC4, 0, 0);
+	crypto_register(sc->sc_cid, CRYPTO_SHA1, 0, 0);
+	crypto_register(sc->sc_cid, CRYPTO_MD5, 0, 0);
+	crypto_register(sc->sc_cid, CRYPTO_SHA1_HMAC, 0, 0);
+	crypto_register(sc->sc_cid, CRYPTO_MD5_HMAC, 0, 0);
+
+	return 0;
+
+out:
+	pasemi_dma_remove(pdev);
+	return ret;
+}
+
+#define MAX_RETRIES 5000
+
+static void pasemi_free_tx_resources(struct pasemi_softc *sc, int chan)
+{
+	struct pasemi_fnu_txring *ring = &sc->tx[chan];
+	int chan_index = chan + sc->base_chan;
+	int retries;
+	u32 stat;
+
+	/* Stop the channel */
+	out_le32(sc->dma_regs +
+		 PAS_DMA_TXCHAN_TCMDSTA(chan_index),
+		 PAS_DMA_TXCHAN_TCMDSTA_ST);
+
+	for (retries = 0; retries < MAX_RETRIES; retries++) {
+		stat = in_le32(sc->dma_regs +
+			       PAS_DMA_TXCHAN_TCMDSTA(chan_index));
+		if (!(stat & PAS_DMA_TXCHAN_TCMDSTA_ACT))
+			break;
+		cond_resched();
+	}
+
+	if (stat & PAS_DMA_TXCHAN_TCMDSTA_ACT)
+		dev_err(&sc->dma_pdev->dev, "Failed to stop tx channel %d\n",
+			chan_index);
+
+	/* Disable the channel */
+	out_le32(sc->dma_regs +
+		 PAS_DMA_TXCHAN_TCMDSTA(chan_index),
+		 0);
+
+	if (ring->desc_info)
+		kfree((void *) ring->desc_info);
+	if (ring->desc)
+		dma_free_coherent(&sc->dma_pdev->dev,
+				  TX_RING_SIZE *
+				  2 * sizeof(u64),
+				  (void *) ring->desc, ring->dma);
+	if (ring->irq != -1)
+		free_irq(ring->irq, sc);
+
+	del_timer(&ring->crypto_timer);
+}
+
+static void __devexit pasemi_dma_remove(struct pci_dev *pdev)
+{
+	struct pasemi_softc *sc = pci_get_drvdata(pdev);
+	int i;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	if (sc->sc_cid >= 0) {
+		crypto_unregister_all(sc->sc_cid);
+	}
+
+	if (sc->tx) {
+		for (i = 0; i < sc->sc_num_channels; i++)
+			pasemi_free_tx_resources(sc, i);
+
+		kfree(sc->tx);
+	}
+	if (sc->sc_sessions) {
+		for (i = 0; i < sc->sc_nsessions; i++)
+			kfree(sc->sc_sessions[i]);
+		kfree(sc->sc_sessions);
+	}
+	if (sc->iob_pdev)
+		pci_dev_put(sc->iob_pdev);
+	if (sc->dma_regs)
+		iounmap(sc->dma_regs);
+	if (sc->iob_regs)
+		iounmap(sc->iob_regs);
+	kfree(sc);
+}
+
+static struct pci_device_id pasemi_dma_pci_tbl[] = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_PASEMI, 0xa007) },
+};
+
+MODULE_DEVICE_TABLE(pci, pasemi_dma_pci_tbl);
+
+static struct pci_driver pasemi_dma_driver = {
+	.name		= "pasemi_dma",
+	.id_table	= pasemi_dma_pci_tbl,
+	.probe		= pasemi_dma_probe,
+	.remove		= __devexit_p(pasemi_dma_remove),
+};
+
+static void __exit pasemi_dma_cleanup_module(void)
+{
+	pci_unregister_driver(&pasemi_dma_driver);
+	__iounmap(dma_status);
+	dma_status = NULL;
+}
+
+int pasemi_dma_init_module(void)
+{
+	return pci_register_driver(&pasemi_dma_driver);
+}
+
+module_init(pasemi_dma_init_module);
+module_exit(pasemi_dma_cleanup_module);
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("Egor Martovetsky egor@pasemi.com");
+MODULE_DESCRIPTION("OCF driver for PA Semi PWRficient DMA Crypto Engine");
diff -Nur linux-2.6.29.1.orig/crypto/ocf/pasemi/pasemi_fnu.h linux-2.6.29.1/crypto/ocf/pasemi/pasemi_fnu.h
--- linux-2.6.29.1.orig/crypto/ocf/pasemi/pasemi_fnu.h	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/pasemi/pasemi_fnu.h	2009-04-20 20:01:21.560560284 +0200
@@ -0,0 +1,410 @@
+/*
+ * Copyright (C) 2007 PA Semi, Inc
+ *
+ * Driver for the PA Semi PWRficient DMA Crypto Engine, soft state and
+ * hardware register layouts.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#ifndef PASEMI_FNU_H
+#define PASEMI_FNU_H
+
+#include <linux/spinlock.h>
+
+#define	PASEMI_SESSION(sid)	((sid) & 0xffffffff)
+#define	PASEMI_SID(sesn)	((sesn) & 0xffffffff)
+#define	DPRINTF(a...)	if (debug) { printk(DRV_NAME ": " a); }
+
+/* Must be a power of two */
+#define RX_RING_SIZE 512
+#define TX_RING_SIZE 512
+#define TX_DESC(ring, num)	((ring)->desc[2 * (num & (TX_RING_SIZE-1))])
+#define TX_DESC_INFO(ring, num)	((ring)->desc_info[(num) & (TX_RING_SIZE-1)])
+#define MAX_DESC_SIZE 8
+#define PASEMI_INITIAL_SESSIONS 10
+#define PASEMI_FNU_CHANNELS 8
+
+/* DMA descriptor */
+struct pasemi_desc {
+	u64 quad[2*MAX_DESC_SIZE];
+	int quad_cnt;
+	int size;
+	int postop;
+};
+
+/*
+ * Holds per descriptor data
+ */
+struct pasemi_desc_info {
+	int			desc_size;
+	int			desc_postop;
+#define PASEMI_CHECK_SIG 0x1
+
+	struct cryptop          *cf_crp;
+};
+
+/*
+ * Holds per channel data
+ */
+struct pasemi_fnu_txring {
+	volatile u64		*desc;
+	volatile struct
+	pasemi_desc_info	*desc_info;
+	dma_addr_t		dma;
+	struct timer_list       crypto_timer;
+	spinlock_t		fill_lock;
+	spinlock_t		clean_lock;
+	unsigned int		next_to_fill;
+	unsigned int		next_to_clean;
+	u16			total_pktcnt;
+	int			irq;
+	int			sesn;
+	char			irq_name[10];
+};
+
+/*
+ * Holds data specific to a single pasemi device.
+ */
+struct pasemi_softc {
+	softc_device_decl	sc_cdev;
+	struct pci_dev		*dma_pdev;	/* device backpointer */
+	struct pci_dev		*iob_pdev;	/* device backpointer */
+	void __iomem		*dma_regs;
+	void __iomem		*iob_regs;
+	int			base_irq;
+	int			base_chan;
+	int32_t			sc_cid;		/* crypto tag */
+	int			sc_nsessions;
+	struct pasemi_session	**sc_sessions;
+	int			sc_num_channels;/* number of crypto channels */
+
+	/* pointer to the array of txring datastructures, one txring per channel */
+	struct pasemi_fnu_txring *tx;
+
+	/*
+	 * mutual exclusion for the channel scheduler
+	 */
+	spinlock_t		sc_chnlock;
+	/* last channel used, for now use round-robin to allocate channels */
+	int			sc_lastchn;
+};
+
+struct pasemi_session {
+	u64 civ[2];
+	u64 keysz;
+	u64 key[4];
+	u64 ccmd;
+	u64 hkey[4];
+	u64 hseq;
+	u64 giv[2];
+	u64 hiv[4];
+
+	int used;
+	dma_addr_t	dma_addr;
+	int chan;
+};
+
+/* status register layout in IOB region, at 0xfd800000 */
+struct pasdma_status {
+	u64 rx_sta[64];
+	u64 tx_sta[20];
+};
+
+#define ALG_IS_CIPHER(alg) ((alg == CRYPTO_DES_CBC)		|| \
+				(alg == CRYPTO_3DES_CBC)	|| \
+				(alg == CRYPTO_AES_CBC)		|| \
+				(alg == CRYPTO_ARC4)		|| \
+				(alg == CRYPTO_NULL_CBC))
+
+#define ALG_IS_SIG(alg) ((alg == CRYPTO_MD5)			|| \
+				(alg == CRYPTO_MD5_HMAC)	|| \
+				(alg == CRYPTO_SHA1)		|| \
+				(alg == CRYPTO_SHA1_HMAC)	|| \
+				(alg == CRYPTO_NULL_HMAC))
+
+enum {
+	PAS_DMA_COM_TXCMD = 0x100,	/* Transmit Command Register  */
+	PAS_DMA_COM_TXSTA = 0x104,	/* Transmit Status Register   */
+	PAS_DMA_COM_RXCMD = 0x108,	/* Receive Command Register   */
+	PAS_DMA_COM_RXSTA = 0x10c,	/* Receive Status Register    */
+	PAS_DMA_COM_CFG   = 0x114,	/* DMA Configuration Register */
+};
+
+/* All these registers live in the PCI configuration space for the DMA PCI
+ * device. Use the normal PCI config access functions for them.
+ */
+
+#define PAS_DMA_COM_CFG_FWF	0x18000000
+
+#define PAS_DMA_COM_TXCMD_EN	0x00000001 /* enable */
+#define PAS_DMA_COM_TXSTA_ACT	0x00000001 /* active */
+#define PAS_DMA_COM_RXCMD_EN	0x00000001 /* enable */
+#define PAS_DMA_COM_RXSTA_ACT	0x00000001 /* active */
+
+#define _PAS_DMA_TXCHAN_STRIDE	0x20    /* Size per channel		*/
+#define _PAS_DMA_TXCHAN_TCMDSTA	0x300	/* Command / Status		*/
+#define _PAS_DMA_TXCHAN_CFG	0x304	/* Configuration		*/
+#define _PAS_DMA_TXCHAN_DSCRBU	0x308	/* Descriptor BU Allocation	*/
+#define _PAS_DMA_TXCHAN_INCR	0x310	/* Descriptor increment		*/
+#define _PAS_DMA_TXCHAN_CNT	0x314	/* Descriptor count/offset	*/
+#define _PAS_DMA_TXCHAN_BASEL	0x318	/* Descriptor ring base (low)	*/
+#define _PAS_DMA_TXCHAN_BASEU	0x31c	/*			(high)	*/
+#define PAS_DMA_TXCHAN_TCMDSTA(c) (0x300+(c)*_PAS_DMA_TXCHAN_STRIDE)
+#define    PAS_DMA_TXCHAN_TCMDSTA_EN	0x00000001	/* Enabled */
+#define    PAS_DMA_TXCHAN_TCMDSTA_ST	0x00000002	/* Stop interface */
+#define    PAS_DMA_TXCHAN_TCMDSTA_ACT	0x00010000	/* Active */
+#define PAS_DMA_TXCHAN_CFG(c)     (0x304+(c)*_PAS_DMA_TXCHAN_STRIDE)
+#define    PAS_DMA_TXCHAN_CFG_TY_FUNC	0x00000002	/* Type = interface */
+#define    PAS_DMA_TXCHAN_CFG_TY_IFACE	0x00000000	/* Type = interface */
+#define    PAS_DMA_TXCHAN_CFG_TATTR_M	0x0000003c
+#define    PAS_DMA_TXCHAN_CFG_TATTR_S	2
+#define    PAS_DMA_TXCHAN_CFG_TATTR(x)	(((x) << PAS_DMA_TXCHAN_CFG_TATTR_S) & \
+					 PAS_DMA_TXCHAN_CFG_TATTR_M)
+#define    PAS_DMA_TXCHAN_CFG_WT_M	0x000001c0
+#define    PAS_DMA_TXCHAN_CFG_WT_S	6
+#define    PAS_DMA_TXCHAN_CFG_WT(x)	(((x) << PAS_DMA_TXCHAN_CFG_WT_S) & \
+					 PAS_DMA_TXCHAN_CFG_WT_M)
+#define    PAS_DMA_TXCHAN_CFG_LPSQ_FAST	0x00000400
+#define    PAS_DMA_TXCHAN_CFG_LPDQ_FAST	0x00000800
+#define    PAS_DMA_TXCHAN_CFG_CF	0x00001000	/* Clean first line */
+#define    PAS_DMA_TXCHAN_CFG_CL	0x00002000	/* Clean last line */
+#define    PAS_DMA_TXCHAN_CFG_UP	0x00004000	/* update tx descr when sent */
+#define PAS_DMA_TXCHAN_INCR(c)    (0x310+(c)*_PAS_DMA_TXCHAN_STRIDE)
+#define PAS_DMA_TXCHAN_BASEL(c)   (0x318+(c)*_PAS_DMA_TXCHAN_STRIDE)
+#define    PAS_DMA_TXCHAN_BASEL_BRBL_M	0xffffffc0
+#define    PAS_DMA_TXCHAN_BASEL_BRBL_S	0
+#define    PAS_DMA_TXCHAN_BASEL_BRBL(x)	(((x) << PAS_DMA_TXCHAN_BASEL_BRBL_S) & \
+					 PAS_DMA_TXCHAN_BASEL_BRBL_M)
+#define PAS_DMA_TXCHAN_BASEU(c)   (0x31c+(c)*_PAS_DMA_TXCHAN_STRIDE)
+#define    PAS_DMA_TXCHAN_BASEU_BRBH_M	0x00000fff
+#define    PAS_DMA_TXCHAN_BASEU_BRBH_S	0
+#define    PAS_DMA_TXCHAN_BASEU_BRBH(x)	(((x) << PAS_DMA_TXCHAN_BASEU_BRBH_S) & \
+					 PAS_DMA_TXCHAN_BASEU_BRBH_M)
+/* # of cache lines worth of buffer ring */
+#define    PAS_DMA_TXCHAN_BASEU_SIZ_M	0x3fff0000
+#define    PAS_DMA_TXCHAN_BASEU_SIZ_S	16		/* 0 = 16K */
+#define    PAS_DMA_TXCHAN_BASEU_SIZ(x)	(((x) << PAS_DMA_TXCHAN_BASEU_SIZ_S) & \
+					 PAS_DMA_TXCHAN_BASEU_SIZ_M)
+
+#define    PAS_STATUS_PCNT_M		0x000000000000ffffull
+#define    PAS_STATUS_PCNT_S		0
+#define    PAS_STATUS_DCNT_M		0x00000000ffff0000ull
+#define    PAS_STATUS_DCNT_S		16
+#define    PAS_STATUS_BPCNT_M		0x0000ffff00000000ull
+#define    PAS_STATUS_BPCNT_S		32
+#define    PAS_STATUS_CAUSE_M		0xf000000000000000ull
+#define    PAS_STATUS_TIMER		0x1000000000000000ull
+#define    PAS_STATUS_ERROR		0x2000000000000000ull
+#define    PAS_STATUS_SOFT		0x4000000000000000ull
+#define    PAS_STATUS_INT		0x8000000000000000ull
+
+#define PAS_IOB_DMA_RXCH_CFG(i)		(0x1100 + (i)*4)
+#define    PAS_IOB_DMA_RXCH_CFG_CNTTH_M		0x00000fff
+#define    PAS_IOB_DMA_RXCH_CFG_CNTTH_S		0
+#define    PAS_IOB_DMA_RXCH_CFG_CNTTH(x)	(((x) << PAS_IOB_DMA_RXCH_CFG_CNTTH_S) & \
+						 PAS_IOB_DMA_RXCH_CFG_CNTTH_M)
+#define PAS_IOB_DMA_TXCH_CFG(i)		(0x1200 + (i)*4)
+#define    PAS_IOB_DMA_TXCH_CFG_CNTTH_M		0x00000fff
+#define    PAS_IOB_DMA_TXCH_CFG_CNTTH_S		0
+#define    PAS_IOB_DMA_TXCH_CFG_CNTTH(x)	(((x) << PAS_IOB_DMA_TXCH_CFG_CNTTH_S) & \
+						 PAS_IOB_DMA_TXCH_CFG_CNTTH_M)
+#define PAS_IOB_DMA_RXCH_STAT(i)	(0x1300 + (i)*4)
+#define    PAS_IOB_DMA_RXCH_STAT_INTGEN	0x00001000
+#define    PAS_IOB_DMA_RXCH_STAT_CNTDEL_M	0x00000fff
+#define    PAS_IOB_DMA_RXCH_STAT_CNTDEL_S	0
+#define    PAS_IOB_DMA_RXCH_STAT_CNTDEL(x)	(((x) << PAS_IOB_DMA_RXCH_STAT_CNTDEL_S) &\
+						 PAS_IOB_DMA_RXCH_STAT_CNTDEL_M)
+#define PAS_IOB_DMA_TXCH_STAT(i)	(0x1400 + (i)*4)
+#define    PAS_IOB_DMA_TXCH_STAT_INTGEN	0x00001000
+#define    PAS_IOB_DMA_TXCH_STAT_CNTDEL_M	0x00000fff
+#define    PAS_IOB_DMA_TXCH_STAT_CNTDEL_S	0
+#define    PAS_IOB_DMA_TXCH_STAT_CNTDEL(x)	(((x) << PAS_IOB_DMA_TXCH_STAT_CNTDEL_S) &\
+						 PAS_IOB_DMA_TXCH_STAT_CNTDEL_M)
+#define PAS_IOB_DMA_RXCH_RESET(i)	(0x1500 + (i)*4)
+#define    PAS_IOB_DMA_RXCH_RESET_PCNT_M	0xffff0000
+#define    PAS_IOB_DMA_RXCH_RESET_PCNT_S	16
+#define    PAS_IOB_DMA_RXCH_RESET_PCNT(x)	(((x) << PAS_IOB_DMA_RXCH_RESET_PCNT_S) & \
+						 PAS_IOB_DMA_RXCH_RESET_PCNT_M)
+#define    PAS_IOB_DMA_RXCH_RESET_PCNTRST	0x00000020
+#define    PAS_IOB_DMA_RXCH_RESET_DCNTRST	0x00000010
+#define    PAS_IOB_DMA_RXCH_RESET_TINTC		0x00000008
+#define    PAS_IOB_DMA_RXCH_RESET_DINTC		0x00000004
+#define    PAS_IOB_DMA_RXCH_RESET_SINTC		0x00000002
+#define    PAS_IOB_DMA_RXCH_RESET_PINTC		0x00000001
+#define PAS_IOB_DMA_TXCH_RESET(i)	(0x1600 + (i)*4)
+#define    PAS_IOB_DMA_TXCH_RESET_PCNT_M	0xffff0000
+#define    PAS_IOB_DMA_TXCH_RESET_PCNT_S	16
+#define    PAS_IOB_DMA_TXCH_RESET_PCNT(x)	(((x) << PAS_IOB_DMA_TXCH_RESET_PCNT_S) & \
+						 PAS_IOB_DMA_TXCH_RESET_PCNT_M)
+#define    PAS_IOB_DMA_TXCH_RESET_PCNTRST	0x00000020
+#define    PAS_IOB_DMA_TXCH_RESET_DCNTRST	0x00000010
+#define    PAS_IOB_DMA_TXCH_RESET_TINTC		0x00000008
+#define    PAS_IOB_DMA_TXCH_RESET_DINTC		0x00000004
+#define    PAS_IOB_DMA_TXCH_RESET_SINTC		0x00000002
+#define    PAS_IOB_DMA_TXCH_RESET_PINTC		0x00000001
+
+#define PAS_IOB_DMA_COM_TIMEOUTCFG		0x1700
+#define    PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT_M	0x00ffffff
+#define    PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT_S	0
+#define    PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT(x)	(((x) << PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT_S) & \
+						 PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT_M)
+
+/* Transmit descriptor fields */
+#define	XCT_MACTX_T		0x8000000000000000ull
+#define	XCT_MACTX_ST		0x4000000000000000ull
+#define XCT_MACTX_NORES		0x0000000000000000ull
+#define XCT_MACTX_8BRES		0x1000000000000000ull
+#define XCT_MACTX_24BRES	0x2000000000000000ull
+#define XCT_MACTX_40BRES	0x3000000000000000ull
+#define XCT_MACTX_I		0x0800000000000000ull
+#define XCT_MACTX_O		0x0400000000000000ull
+#define XCT_MACTX_E		0x0200000000000000ull
+#define XCT_MACTX_VLAN_M	0x0180000000000000ull
+#define XCT_MACTX_VLAN_NOP	0x0000000000000000ull
+#define XCT_MACTX_VLAN_REMOVE	0x0080000000000000ull
+#define XCT_MACTX_VLAN_INSERT   0x0100000000000000ull
+#define XCT_MACTX_VLAN_REPLACE  0x0180000000000000ull
+#define XCT_MACTX_CRC_M		0x0060000000000000ull
+#define XCT_MACTX_CRC_NOP	0x0000000000000000ull
+#define XCT_MACTX_CRC_INSERT	0x0020000000000000ull
+#define XCT_MACTX_CRC_PAD	0x0040000000000000ull
+#define XCT_MACTX_CRC_REPLACE	0x0060000000000000ull
+#define XCT_MACTX_SS		0x0010000000000000ull
+#define XCT_MACTX_LLEN_M	0x00007fff00000000ull
+#define XCT_MACTX_LLEN_S	32ull
+#define XCT_MACTX_LLEN(x)	((((long)(x)) << XCT_MACTX_LLEN_S) & \
+				 XCT_MACTX_LLEN_M)
+#define XCT_MACTX_IPH_M		0x00000000f8000000ull
+#define XCT_MACTX_IPH_S		27ull
+#define XCT_MACTX_IPH(x)	((((long)(x)) << XCT_MACTX_IPH_S) & \
+				 XCT_MACTX_IPH_M)
+#define XCT_MACTX_IPO_M		0x0000000007c00000ull
+#define XCT_MACTX_IPO_S		22ull
+#define XCT_MACTX_IPO(x)	((((long)(x)) << XCT_MACTX_IPO_S) & \
+				 XCT_MACTX_IPO_M)
+#define XCT_MACTX_CSUM_M	0x0000000000000060ull
+#define XCT_MACTX_CSUM_NOP	0x0000000000000000ull
+#define XCT_MACTX_CSUM_TCP	0x0000000000000040ull
+#define XCT_MACTX_CSUM_UDP	0x0000000000000060ull
+#define XCT_MACTX_V6		0x0000000000000010ull
+#define XCT_MACTX_C		0x0000000000000004ull
+#define XCT_MACTX_AL2		0x0000000000000002ull
+
+#define XCT_PTR_T		0x8000000000000000ull
+#define XCT_PTR_LEN_M		0x7ffff00000000000ull
+#define XCT_PTR_LEN_S		44
+#define XCT_PTR_LEN(x)		((((long)(x)) << XCT_PTR_LEN_S) & \
+				 XCT_PTR_LEN_M)
+#define XCT_PTR_ADDR_M		0x00000fffffffffffull
+#define XCT_PTR_ADDR_S		0
+#define XCT_PTR_ADDR(x)		((((long)(x)) << XCT_PTR_ADDR_S) & \
+				 XCT_PTR_ADDR_M)
+
+/* Function descriptor fields */
+#define	XCT_FUN_T		0x8000000000000000ull
+#define	XCT_FUN_ST		0x4000000000000000ull
+#define XCT_FUN_NORES		0x0000000000000000ull
+#define XCT_FUN_8BRES		0x1000000000000000ull
+#define XCT_FUN_24BRES		0x2000000000000000ull
+#define XCT_FUN_40BRES		0x3000000000000000ull
+#define XCT_FUN_I		0x0800000000000000ull
+#define XCT_FUN_O		0x0400000000000000ull
+#define XCT_FUN_E		0x0200000000000000ull
+#define XCT_FUN_FUN_S		54
+#define XCT_FUN_FUN_M		0x01c0000000000000ull
+#define XCT_FUN_FUN(num)	((((long)(num)) << XCT_FUN_FUN_S) & \
+				XCT_FUN_FUN_M)
+#define XCT_FUN_CRM_NOP		0x0000000000000000ull
+#define XCT_FUN_CRM_SIG		0x0008000000000000ull
+#define XCT_FUN_CRM_ENC		0x0010000000000000ull
+#define XCT_FUN_CRM_DEC		0x0018000000000000ull
+#define XCT_FUN_CRM_SIG_ENC	0x0020000000000000ull
+#define XCT_FUN_CRM_ENC_SIG	0x0028000000000000ull
+#define XCT_FUN_CRM_SIG_DEC	0x0030000000000000ull
+#define XCT_FUN_CRM_DEC_SIG	0x0038000000000000ull
+#define XCT_FUN_LLEN_M		0x0007ffff00000000ull
+#define XCT_FUN_LLEN_S		32ULL
+#define XCT_FUN_LLEN(x)		((((long)(x)) << XCT_FUN_LLEN_S) & \
+				 XCT_FUN_LLEN_M)
+#define XCT_FUN_SHL_M		0x00000000f8000000ull
+#define XCT_FUN_SHL_S		27ull
+#define XCT_FUN_SHL(x)		((((long)(x)) << XCT_FUN_SHL_S) & \
+				 XCT_FUN_SHL_M)
+#define XCT_FUN_CHL_M		0x0000000007c00000ull
+#define XCT_FUN_CHL_S		22ull
+#define XCT_FUN_CHL(x)		((((long)(x)) << XCT_FUN_CHL_S) & \
+				 XCT_FUN_CHL_M)
+#define XCT_FUN_HSZ_M		0x00000000003c0000ull
+#define XCT_FUN_HSZ_S		18ull
+#define XCT_FUN_HSZ(x)		((((long)(x)) << XCT_FUN_HSZ_S) & \
+				 XCT_FUN_HSZ_M)
+#define XCT_FUN_ALG_DES		0x0000000000000000ull
+#define XCT_FUN_ALG_3DES	0x0000000000008000ull
+#define XCT_FUN_ALG_AES		0x0000000000010000ull
+#define XCT_FUN_ALG_ARC		0x0000000000018000ull
+#define XCT_FUN_ALG_KASUMI	0x0000000000020000ull
+#define XCT_FUN_BCM_ECB		0x0000000000000000ull
+#define XCT_FUN_BCM_CBC		0x0000000000001000ull
+#define XCT_FUN_BCM_CFB		0x0000000000002000ull
+#define XCT_FUN_BCM_OFB		0x0000000000003000ull
+#define XCT_FUN_BCM_CNT		0x0000000000003800ull
+#define XCT_FUN_BCM_KAS_F8	0x0000000000002800ull
+#define XCT_FUN_BCM_KAS_F9	0x0000000000001800ull
+#define XCT_FUN_BCP_NO_PAD	0x0000000000000000ull
+#define XCT_FUN_BCP_ZRO		0x0000000000000200ull
+#define XCT_FUN_BCP_PL		0x0000000000000400ull
+#define XCT_FUN_BCP_INCR	0x0000000000000600ull
+#define XCT_FUN_SIG_MD5		(0ull << 4)
+#define XCT_FUN_SIG_SHA1	(2ull << 4)
+#define XCT_FUN_SIG_HMAC_MD5	(8ull << 4)
+#define XCT_FUN_SIG_HMAC_SHA1	(10ull << 4)
+#define XCT_FUN_A		0x0000000000000008ull
+#define XCT_FUN_C		0x0000000000000004ull
+#define XCT_FUN_AL2		0x0000000000000002ull
+#define XCT_FUN_SE		0x0000000000000001ull
+
+#define XCT_FUN_SRC_PTR(len, addr)	(XCT_PTR_LEN(len) | XCT_PTR_ADDR(addr))
+#define XCT_FUN_DST_PTR(len, addr)	(XCT_FUN_SRC_PTR(len, addr) | \
+					0x8000000000000000ull)
+
+#define XCT_CTRL_HDR_FUN_NUM_M		0x01c0000000000000ull
+#define XCT_CTRL_HDR_FUN_NUM_S		54
+#define XCT_CTRL_HDR_LEN_M		0x0007ffff00000000ull
+#define XCT_CTRL_HDR_LEN_S		32
+#define XCT_CTRL_HDR_REG_M		0x00000000000000ffull
+#define XCT_CTRL_HDR_REG_S		0
+
+#define XCT_CTRL_HDR(funcN,len,reg)	(0x9400000000000000ull | \
+			((((long)(funcN)) << XCT_CTRL_HDR_FUN_NUM_S) \
+			& XCT_CTRL_HDR_FUN_NUM_M) | \
+			((((long)(len)) << \
+			XCT_CTRL_HDR_LEN_S) & XCT_CTRL_HDR_LEN_M) | \
+			((((long)(reg)) << \
+			XCT_CTRL_HDR_REG_S) & XCT_CTRL_HDR_REG_M))
+
+/* Function config command options */
+#define	DMA_CALGO_DES			0x00
+#define	DMA_CALGO_3DES			0x01
+#define	DMA_CALGO_AES			0x02
+#define	DMA_CALGO_ARC			0x03
+
+#define DMA_FN_CIV0			0x02
+#define DMA_FN_CIV1			0x03
+#define DMA_FN_HKEY0			0x0a
+
+#define XCT_PTR_ADDR_LEN(ptr)		((ptr) & XCT_PTR_ADDR_M), \
+			(((ptr) & XCT_PTR_LEN_M) >> XCT_PTR_LEN_S)
+
+#endif /* PASEMI_FNU_H */
diff -Nur linux-2.6.29.1.orig/crypto/ocf/random.c linux-2.6.29.1/crypto/ocf/random.c
--- linux-2.6.29.1.orig/crypto/ocf/random.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/random.c	2009-04-20 20:01:21.584560546 +0200
@@ -0,0 +1,317 @@
+/*
+ * A system independant way of adding entropy to the kernels pool
+ * this way the drivers can focus on the real work and we can take
+ * care of pushing it to the appropriate place in the kernel.
+ *
+ * This should be fast and callable from timers/interrupts
+ *
+ * Written by David McCullough <david_mccullough@securecomputing.com>
+ * Copyright (C) 2006-2007 David McCullough
+ * Copyright (C) 2004-2005 Intel Corporation.
+ *
+ * LICENSE TERMS
+ *
+ * The free distribution and use of this software in both source and binary
+ * form is allowed (with or without changes) provided that:
+ *
+ *   1. distributions of this source code include the above copyright
+ *      notice, this list of conditions and the following disclaimer;
+ *
+ *   2. distributions in binary form include the above copyright
+ *      notice, this list of conditions and the following disclaimer
+ *      in the documentation and/or other associated materials;
+ *
+ *   3. the copyright holder's name is not used to endorse products
+ *      built using this software without specific written permission.
+ *
+ * ALTERNATIVELY, provided that this notice is retained in full, this product
+ * may be distributed under the terms of the GNU General Public License (GPL),
+ * in which case the provisions of the GPL apply INSTEAD OF those given above.
+ *
+ * DISCLAIMER
+ *
+ * This software is provided 'as is' with no explicit or implied warranties
+ * in respect of its properties, including, but not limited to, correctness
+ * and/or fitness for purpose.
+ */
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/wait.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include <linux/version.h>
+#include <linux/unistd.h>
+#include <linux/poll.h>
+#include <linux/random.h>
+#include <cryptodev.h>
+
+#ifdef CONFIG_OCF_FIPS
+#include "rndtest.h"
+#endif
+
+#ifndef HAS_RANDOM_INPUT_WAIT
+#error "Please do not enable OCF_RANDOMHARVEST unless you have applied patches"
+#endif
+
+/*
+ * a hack to access the debug levels from the crypto driver
+ */
+extern int crypto_debug;
+#define debug crypto_debug
+
+/*
+ * a list of all registered random providers
+ */
+static LIST_HEAD(random_ops);
+static int started = 0;
+static int initted = 0;
+
+struct random_op {
+	struct list_head random_list;
+	u_int32_t driverid;
+	int (*read_random)(void *arg, u_int32_t *buf, int len);
+	void *arg;
+};
+
+static int random_proc(void *arg);
+
+static pid_t		randomproc = (pid_t) -1;
+static spinlock_t	random_lock;
+
+/*
+ * just init the spin locks
+ */
+static int
+crypto_random_init(void)
+{
+	spin_lock_init(&random_lock);
+	initted = 1;
+	return(0);
+}
+
+/*
+ * Add the given random reader to our list (if not present)
+ * and start the thread (if not already started)
+ *
+ * we have to assume that driver id is ok for now
+ */
+int
+crypto_rregister(
+	u_int32_t driverid,
+	int (*read_random)(void *arg, u_int32_t *buf, int len),
+	void *arg)
+{
+	unsigned long flags;
+	int ret = 0;
+	struct random_op	*rops, *tmp;
+
+	dprintk("%s,%d: %s(0x%x, %p, %p)\n", __FILE__, __LINE__,
+			__FUNCTION__, driverid, read_random, arg);
+
+	if (!initted)
+		crypto_random_init();
+
+#if 0
+	struct cryptocap	*cap;
+
+	cap = crypto_checkdriver(driverid);
+	if (!cap)
+		return EINVAL;
+#endif
+
+	list_for_each_entry_safe(rops, tmp, &random_ops, random_list) {
+		if (rops->driverid == driverid && rops->read_random == read_random)
+			return EEXIST;
+	}
+
+	rops = (struct random_op *) kmalloc(sizeof(*rops), GFP_KERNEL);
+	if (!rops)
+		return ENOMEM;
+
+	rops->driverid    = driverid;
+	rops->read_random = read_random;
+	rops->arg = arg;
+
+	spin_lock_irqsave(&random_lock, flags);
+	list_add_tail(&rops->random_list, &random_ops);
+	if (!started) {
+		randomproc = kernel_thread(random_proc, NULL, CLONE_FS|CLONE_FILES);
+		if (randomproc < 0) {
+			ret = randomproc;
+			printk("crypto: crypto_rregister cannot start random thread; "
+					"error %d", ret);
+		} else
+			started = 1;
+	}
+	spin_unlock_irqrestore(&random_lock, flags);
+
+	return ret;
+}
+EXPORT_SYMBOL(crypto_rregister);
+
+int
+crypto_runregister_all(u_int32_t driverid)
+{
+	struct random_op *rops, *tmp;
+	unsigned long flags;
+
+	dprintk("%s,%d: %s(0x%x)\n", __FILE__, __LINE__, __FUNCTION__, driverid);
+
+	list_for_each_entry_safe(rops, tmp, &random_ops, random_list) {
+		if (rops->driverid == driverid) {
+			list_del(&rops->random_list);
+			kfree(rops);
+		}
+	}
+
+	spin_lock_irqsave(&random_lock, flags);
+	if (list_empty(&random_ops) && started)
+		kill_pid(randomproc, SIGKILL, 1);
+	spin_unlock_irqrestore(&random_lock, flags);
+	return(0);
+}
+EXPORT_SYMBOL(crypto_runregister_all);
+
+/*
+ * while we can add entropy to random.c continue to read random data from
+ * the drivers and push it to random.
+ */
+static int
+random_proc(void *arg)
+{
+	int n;
+	int wantcnt;
+	int bufcnt = 0;
+	int retval = 0;
+	int *buf = NULL;
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+	daemonize();
+	spin_lock_irq(&current->sigmask_lock);
+	sigemptyset(&current->blocked);
+	recalc_sigpending(current);
+	spin_unlock_irq(&current->sigmask_lock);
+	sprintf(current->comm, "ocf-random");
+#else
+	daemonize("ocf-random");
+	allow_signal(SIGKILL);
+#endif
+
+	(void) get_fs();
+	set_fs(get_ds());
+
+#ifdef CONFIG_OCF_FIPS
+#define NUM_INT (RNDTEST_NBYTES/sizeof(int))
+#else
+#define NUM_INT 32
+#endif
+
+	/*
+	 * some devices can transferr their RNG data direct into memory,
+	 * so make sure it is device friendly
+	 */
+	buf = kmalloc(NUM_INT * sizeof(int), GFP_DMA);
+	if (NULL == buf) {
+		printk("crypto: RNG could not allocate memory\n");
+		retval = -ENOMEM;
+		goto bad_alloc;
+	}
+
+	wantcnt = NUM_INT;   /* start by adding some entropy */
+
+	/*
+	 * its possible due to errors or driver removal that we no longer
+	 * have anything to do,  if so exit or we will consume all the CPU
+	 * doing nothing
+	 */
+	while (!list_empty(&random_ops)) {
+		struct random_op	*rops, *tmp;
+
+#ifdef CONFIG_OCF_FIPS
+		if (wantcnt)
+			wantcnt = NUM_INT; /* FIPs mode can do 20000 bits or none */
+#endif
+
+		/* see if we can get enough entropy to make the world
+		 * a better place.
+		 */
+		while (bufcnt < wantcnt && bufcnt < NUM_INT) {
+			list_for_each_entry_safe(rops, tmp, &random_ops, random_list) {
+
+				n = (*rops->read_random)(rops->arg, &buf[bufcnt],
+							 NUM_INT - bufcnt);
+
+				/* on failure remove the random number generator */
+				if (n == -1) {
+					list_del(&rops->random_list);
+					printk("crypto: RNG (driverid=0x%x) failed, disabling\n",
+							rops->driverid);
+					kfree(rops);
+				} else if (n > 0)
+					bufcnt += n;
+			}
+			/* give up CPU for a bit, just in case as this is a loop */
+			schedule();
+		}
+
+
+#ifdef CONFIG_OCF_FIPS
+		if (bufcnt > 0 && rndtest_buf((unsigned char *) &buf[0])) {
+			dprintk("crypto: buffer had fips errors, discarding\n");
+			bufcnt = 0;
+		}
+#endif
+
+		/*
+		 * if we have a certified buffer,  we can send some data
+		 * to /dev/random and move along
+		 */
+		if (bufcnt > 0) {
+			/* add what we have */
+			random_input_words(buf, bufcnt, bufcnt*sizeof(int)*8);
+			bufcnt = 0;
+		}
+
+		/* give up CPU for a bit so we don't hog while filling */
+		schedule();
+
+		/* wait for needing more */
+		wantcnt = random_input_wait();
+
+		if (wantcnt <= 0)
+			wantcnt = 0; /* try to get some info again */
+		else
+		 	/* round up to one word or we can loop forever */
+			wantcnt = (wantcnt + (sizeof(int)*8)) / (sizeof(int)*8);
+		if (wantcnt > NUM_INT) {
+			wantcnt = NUM_INT;
+		}
+
+		if (signal_pending(current)) {
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+			spin_lock_irq(&current->sigmask_lock);
+#endif
+			flush_signals(current);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+			spin_unlock_irq(&current->sigmask_lock);
+#endif
+		}
+	}
+	
+	kfree(buf);
+
+bad_alloc:
+	spin_lock_irq(&random_lock);
+	randomproc = (pid_t) -1;
+	started = 0;
+	spin_unlock_irq(&random_lock);
+
+	return retval;
+}
+
diff -Nur linux-2.6.29.1.orig/crypto/ocf/rndtest.c linux-2.6.29.1/crypto/ocf/rndtest.c
--- linux-2.6.29.1.orig/crypto/ocf/rndtest.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/rndtest.c	2009-04-20 20:01:21.584560546 +0200
@@ -0,0 +1,300 @@
+/*	$OpenBSD$	*/
+
+/*
+ * OCF/Linux port done by David McCullough <david_mccullough@securecomputing.com>
+ * Copyright (C) 2006-2007 David McCullough
+ * Copyright (C) 2004-2005 Intel Corporation.
+ * The license and original author are listed below.
+ *
+ * Copyright (c) 2002 Jason L. Wright (jason@thought.net)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Jason L. Wright
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/list.h>
+#include <linux/wait.h>
+#include <linux/time.h>
+#include <linux/version.h>
+#include <linux/unistd.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/time.h>
+#include <cryptodev.h>
+#include "rndtest.h"
+
+static struct rndtest_stats rndstats;
+
+static	void rndtest_test(struct rndtest_state *);
+
+/* The tests themselves */
+static	int rndtest_monobit(struct rndtest_state *);
+static	int rndtest_runs(struct rndtest_state *);
+static	int rndtest_longruns(struct rndtest_state *);
+static	int rndtest_chi_4(struct rndtest_state *);
+
+static	int rndtest_runs_check(struct rndtest_state *, int, int *);
+static	void rndtest_runs_record(struct rndtest_state *, int, int *);
+
+static const struct rndtest_testfunc {
+	int (*test)(struct rndtest_state *);
+} rndtest_funcs[] = {
+	{ rndtest_monobit },
+	{ rndtest_runs },
+	{ rndtest_chi_4 },
+	{ rndtest_longruns },
+};
+
+#define	RNDTEST_NTESTS	(sizeof(rndtest_funcs)/sizeof(rndtest_funcs[0]))
+
+static void
+rndtest_test(struct rndtest_state *rsp)
+{
+	int i, rv = 0;
+
+	rndstats.rst_tests++;
+	for (i = 0; i < RNDTEST_NTESTS; i++)
+		rv |= (*rndtest_funcs[i].test)(rsp);
+	rsp->rs_discard = (rv != 0);
+}
+
+
+extern int crypto_debug;
+#define rndtest_verbose 2
+#define rndtest_report(rsp, failure, fmt, a...) \
+	{ if (failure || crypto_debug) { printk("rng_test: " fmt "\n", a); } else; }
+
+#define	RNDTEST_MONOBIT_MINONES	9725
+#define	RNDTEST_MONOBIT_MAXONES	10275
+
+static int
+rndtest_monobit(struct rndtest_state *rsp)
+{
+	int i, ones = 0, j;
+	u_int8_t r;
+
+	for (i = 0; i < RNDTEST_NBYTES; i++) {
+		r = rsp->rs_buf[i];
+		for (j = 0; j < 8; j++, r <<= 1)
+			if (r & 0x80)
+				ones++;
+	}
+	if (ones > RNDTEST_MONOBIT_MINONES &&
+	    ones < RNDTEST_MONOBIT_MAXONES) {
+		if (rndtest_verbose > 1)
+			rndtest_report(rsp, 0, "monobit pass (%d < %d < %d)",
+			    RNDTEST_MONOBIT_MINONES, ones,
+			    RNDTEST_MONOBIT_MAXONES);
+		return (0);
+	} else {
+		if (rndtest_verbose)
+			rndtest_report(rsp, 1,
+			    "monobit failed (%d ones)", ones);
+		rndstats.rst_monobit++;
+		return (-1);
+	}
+}
+
+#define	RNDTEST_RUNS_NINTERVAL	6
+
+static const struct rndtest_runs_tabs {
+	u_int16_t min, max;
+} rndtest_runs_tab[] = {
+	{ 2343, 2657 },
+	{ 1135, 1365 },
+	{ 542, 708 },
+	{ 251, 373 },
+	{ 111, 201 },
+	{ 111, 201 },
+};
+
+static int
+rndtest_runs(struct rndtest_state *rsp)
+{
+	int i, j, ones, zeros, rv = 0;
+	int onei[RNDTEST_RUNS_NINTERVAL], zeroi[RNDTEST_RUNS_NINTERVAL];
+	u_int8_t c;
+
+	bzero(onei, sizeof(onei));
+	bzero(zeroi, sizeof(zeroi));
+	ones = zeros = 0;
+	for (i = 0; i < RNDTEST_NBYTES; i++) {
+		c = rsp->rs_buf[i];
+		for (j = 0; j < 8; j++, c <<= 1) {
+			if (c & 0x80) {
+				ones++;
+				rndtest_runs_record(rsp, zeros, zeroi);
+				zeros = 0;
+			} else {
+				zeros++;
+				rndtest_runs_record(rsp, ones, onei);
+				ones = 0;
+			}
+		}
+	}
+	rndtest_runs_record(rsp, ones, onei);
+	rndtest_runs_record(rsp, zeros, zeroi);
+
+	rv |= rndtest_runs_check(rsp, 0, zeroi);
+	rv |= rndtest_runs_check(rsp, 1, onei);
+
+	if (rv)
+		rndstats.rst_runs++;
+
+	return (rv);
+}
+
+static void
+rndtest_runs_record(struct rndtest_state *rsp, int len, int *intrv)
+{
+	if (len == 0)
+		return;
+	if (len > RNDTEST_RUNS_NINTERVAL)
+		len = RNDTEST_RUNS_NINTERVAL;
+	len -= 1;
+	intrv[len]++;
+}
+
+static int
+rndtest_runs_check(struct rndtest_state *rsp, int val, int *src)
+{
+	int i, rv = 0;
+
+	for (i = 0; i < RNDTEST_RUNS_NINTERVAL; i++) {
+		if (src[i] < rndtest_runs_tab[i].min ||
+		    src[i] > rndtest_runs_tab[i].max) {
+			rndtest_report(rsp, 1,
+			    "%s interval %d failed (%d, %d-%d)",
+			    val ? "ones" : "zeros",
+			    i + 1, src[i], rndtest_runs_tab[i].min,
+			    rndtest_runs_tab[i].max);
+			rv = -1;
+		} else {
+			rndtest_report(rsp, 0,
+			    "runs pass %s interval %d (%d < %d < %d)",
+			    val ? "ones" : "zeros",
+			    i + 1, rndtest_runs_tab[i].min, src[i],
+			    rndtest_runs_tab[i].max);
+		}
+	}
+	return (rv);
+}
+
+static int
+rndtest_longruns(struct rndtest_state *rsp)
+{
+	int i, j, ones = 0, zeros = 0, maxones = 0, maxzeros = 0;
+	u_int8_t c;
+
+	for (i = 0; i < RNDTEST_NBYTES; i++) {
+		c = rsp->rs_buf[i];
+		for (j = 0; j < 8; j++, c <<= 1) {
+			if (c & 0x80) {
+				zeros = 0;
+				ones++;
+				if (ones > maxones)
+					maxones = ones;
+			} else {
+				ones = 0;
+				zeros++;
+				if (zeros > maxzeros)
+					maxzeros = zeros;
+			}
+		}
+	}
+
+	if (maxones < 26 && maxzeros < 26) {
+		rndtest_report(rsp, 0, "longruns pass (%d ones, %d zeros)",
+			maxones, maxzeros);
+		return (0);
+	} else {
+		rndtest_report(rsp, 1, "longruns fail (%d ones, %d zeros)",
+			maxones, maxzeros);
+		rndstats.rst_longruns++;
+		return (-1);
+	}
+}
+
+/*
+ * chi^2 test over 4 bits: (this is called the poker test in FIPS 140-2,
+ * but it is really the chi^2 test over 4 bits (the poker test as described
+ * by Knuth vol 2 is something different, and I take him as authoritative
+ * on nomenclature over NIST).
+ */
+#define	RNDTEST_CHI4_K	16
+#define	RNDTEST_CHI4_K_MASK	(RNDTEST_CHI4_K - 1)
+
+/*
+ * The unnormalized values are used so that we don't have to worry about
+ * fractional precision.  The "real" value is found by:
+ *	(V - 1562500) * (16 / 5000) = Vn   (where V is the unnormalized value)
+ */
+#define	RNDTEST_CHI4_VMIN	1563181		/* 2.1792 */
+#define	RNDTEST_CHI4_VMAX	1576929		/* 46.1728 */
+
+static int
+rndtest_chi_4(struct rndtest_state *rsp)
+{
+	unsigned int freq[RNDTEST_CHI4_K], i, sum;
+
+	for (i = 0; i < RNDTEST_CHI4_K; i++)
+		freq[i] = 0;
+
+	/* Get number of occurances of each 4 bit pattern */
+	for (i = 0; i < RNDTEST_NBYTES; i++) {
+		freq[(rsp->rs_buf[i] >> 4) & RNDTEST_CHI4_K_MASK]++;
+		freq[(rsp->rs_buf[i] >> 0) & RNDTEST_CHI4_K_MASK]++;
+	}
+
+	for (i = 0, sum = 0; i < RNDTEST_CHI4_K; i++)
+		sum += freq[i] * freq[i];
+
+	if (sum >= 1563181 && sum <= 1576929) {
+		rndtest_report(rsp, 0, "chi^2(4): pass (sum %u)", sum);
+		return (0);
+	} else {
+		rndtest_report(rsp, 1, "chi^2(4): failed (sum %u)", sum);
+		rndstats.rst_chi++;
+		return (-1);
+	}
+}
+
+int
+rndtest_buf(unsigned char *buf)
+{
+	struct rndtest_state rsp;
+
+	memset(&rsp, 0, sizeof(rsp));
+	rsp.rs_buf = buf;
+	rndtest_test(&rsp);
+	return(rsp.rs_discard);
+}
+
diff -Nur linux-2.6.29.1.orig/crypto/ocf/rndtest.h linux-2.6.29.1/crypto/ocf/rndtest.h
--- linux-2.6.29.1.orig/crypto/ocf/rndtest.h	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/rndtest.h	2009-04-20 20:01:21.588561893 +0200
@@ -0,0 +1,54 @@
+/*	$FreeBSD: src/sys/dev/rndtest/rndtest.h,v 1.1 2003/03/11 22:54:44 sam Exp $	*/
+/*	$OpenBSD$	*/
+
+/*
+ * Copyright (c) 2002 Jason L. Wright (jason@thought.net)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Jason L. Wright
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+
+/* Some of the tests depend on these values */
+#define	RNDTEST_NBYTES	2500
+#define	RNDTEST_NBITS	(8 * RNDTEST_NBYTES)
+
+struct rndtest_state {
+	int		rs_discard;	/* discard/accept random data */
+	u_int8_t	*rs_buf;
+};
+
+struct rndtest_stats {
+	u_int32_t	rst_discard;	/* number of bytes discarded */
+	u_int32_t	rst_tests;	/* number of test runs */
+	u_int32_t	rst_monobit;	/* monobit test failures */
+	u_int32_t	rst_runs;	/* 0/1 runs failures */
+	u_int32_t	rst_longruns;	/* longruns failures */
+	u_int32_t	rst_chi;	/* chi^2 failures */
+};
+
+extern int rndtest_buf(unsigned char *buf);
diff -Nur linux-2.6.29.1.orig/crypto/ocf/safe/Makefile linux-2.6.29.1/crypto/ocf/safe/Makefile
--- linux-2.6.29.1.orig/crypto/ocf/safe/Makefile	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/safe/Makefile	2009-04-20 20:01:21.588561893 +0200
@@ -0,0 +1,12 @@
+# for SGlinux builds
+-include $(ROOTDIR)/modules/.config
+
+obj-$(CONFIG_OCF_SAFE) += safe.o
+
+obj ?= .
+EXTRA_CFLAGS += -I$(obj)/.. -I$(obj)/
+
+ifdef TOPDIR
+-include $(TOPDIR)/Rules.make
+endif
+
diff -Nur linux-2.6.29.1.orig/crypto/ocf/safe/md5.c linux-2.6.29.1/crypto/ocf/safe/md5.c
--- linux-2.6.29.1.orig/crypto/ocf/safe/md5.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/safe/md5.c	2009-04-20 20:01:21.588561893 +0200
@@ -0,0 +1,308 @@
+/*	$KAME: md5.c,v 1.5 2000/11/08 06:13:08 itojun Exp $	*/
+/*
+ * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if 0
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: src/sys/crypto/md5.c,v 1.9 2004/01/27 19:49:19 des Exp $");
+
+#include <sys/types.h>
+#include <sys/cdefs.h>
+#include <sys/time.h>
+#include <sys/systm.h>
+#include <crypto/md5.h>
+#endif
+
+#define SHIFT(X, s) (((X) << (s)) | ((X) >> (32 - (s))))
+
+#define F(X, Y, Z) (((X) & (Y)) | ((~X) & (Z)))
+#define G(X, Y, Z) (((X) & (Z)) | ((Y) & (~Z)))
+#define H(X, Y, Z) ((X) ^ (Y) ^ (Z))
+#define I(X, Y, Z) ((Y) ^ ((X) | (~Z)))
+
+#define ROUND1(a, b, c, d, k, s, i) { \
+	(a) = (a) + F((b), (c), (d)) + X[(k)] + T[(i)]; \
+	(a) = SHIFT((a), (s)); \
+	(a) = (b) + (a); \
+}
+
+#define ROUND2(a, b, c, d, k, s, i) { \
+	(a) = (a) + G((b), (c), (d)) + X[(k)] + T[(i)]; \
+	(a) = SHIFT((a), (s)); \
+	(a) = (b) + (a); \
+}
+
+#define ROUND3(a, b, c, d, k, s, i) { \
+	(a) = (a) + H((b), (c), (d)) + X[(k)] + T[(i)]; \
+	(a) = SHIFT((a), (s)); \
+	(a) = (b) + (a); \
+}
+
+#define ROUND4(a, b, c, d, k, s, i) { \
+	(a) = (a) + I((b), (c), (d)) + X[(k)] + T[(i)]; \
+	(a) = SHIFT((a), (s)); \
+	(a) = (b) + (a); \
+}
+
+#define Sa	 7
+#define Sb	12
+#define Sc	17
+#define Sd	22
+
+#define Se	 5
+#define Sf	 9
+#define Sg	14
+#define Sh	20
+
+#define Si	 4
+#define Sj	11
+#define Sk	16
+#define Sl	23
+
+#define Sm	 6
+#define Sn	10
+#define So	15
+#define Sp	21
+
+#define MD5_A0	0x67452301
+#define MD5_B0	0xefcdab89
+#define MD5_C0	0x98badcfe
+#define MD5_D0	0x10325476
+
+/* Integer part of 4294967296 times abs(sin(i)), where i is in radians. */
+static const u_int32_t T[65] = {
+	0,
+	0xd76aa478, 	0xe8c7b756,	0x242070db,	0xc1bdceee,
+	0xf57c0faf,	0x4787c62a, 	0xa8304613,	0xfd469501,
+	0x698098d8,	0x8b44f7af,	0xffff5bb1,	0x895cd7be,
+	0x6b901122, 	0xfd987193, 	0xa679438e,	0x49b40821,
+
+	0xf61e2562,	0xc040b340, 	0x265e5a51, 	0xe9b6c7aa,
+	0xd62f105d,	0x2441453,	0xd8a1e681,	0xe7d3fbc8,
+	0x21e1cde6,	0xc33707d6, 	0xf4d50d87, 	0x455a14ed,
+	0xa9e3e905,	0xfcefa3f8, 	0x676f02d9, 	0x8d2a4c8a,
+
+	0xfffa3942,	0x8771f681, 	0x6d9d6122, 	0xfde5380c,
+	0xa4beea44, 	0x4bdecfa9, 	0xf6bb4b60, 	0xbebfbc70,
+	0x289b7ec6, 	0xeaa127fa, 	0xd4ef3085,	0x4881d05,
+	0xd9d4d039, 	0xe6db99e5, 	0x1fa27cf8, 	0xc4ac5665,
+
+	0xf4292244, 	0x432aff97, 	0xab9423a7, 	0xfc93a039,
+	0x655b59c3, 	0x8f0ccc92, 	0xffeff47d, 	0x85845dd1,
+	0x6fa87e4f, 	0xfe2ce6e0, 	0xa3014314, 	0x4e0811a1,
+	0xf7537e82, 	0xbd3af235, 	0x2ad7d2bb, 	0xeb86d391,
+};
+
+static const u_int8_t md5_paddat[MD5_BUFLEN] = {
+	0x80,	0,	0,	0,	0,	0,	0,	0,
+	0,	0,	0,	0,	0,	0,	0,	0,
+	0,	0,	0,	0,	0,	0,	0,	0,
+	0,	0,	0,	0,	0,	0,	0,	0,
+	0,	0,	0,	0,	0,	0,	0,	0,
+	0,	0,	0,	0,	0,	0,	0,	0,
+	0,	0,	0,	0,	0,	0,	0,	0,
+	0,	0,	0,	0,	0,	0,	0,	0,	
+};
+
+static void md5_calc(u_int8_t *, md5_ctxt *);
+
+void md5_init(ctxt)
+	md5_ctxt *ctxt;
+{
+	ctxt->md5_n = 0;
+	ctxt->md5_i = 0;
+	ctxt->md5_sta = MD5_A0;
+	ctxt->md5_stb = MD5_B0;
+	ctxt->md5_stc = MD5_C0;
+	ctxt->md5_std = MD5_D0;
+	bzero(ctxt->md5_buf, sizeof(ctxt->md5_buf));
+}
+
+void md5_loop(ctxt, input, len)
+	md5_ctxt *ctxt;
+	u_int8_t *input;
+	u_int len; /* number of bytes */
+{
+	u_int gap, i;
+
+	ctxt->md5_n += len * 8; /* byte to bit */
+	gap = MD5_BUFLEN - ctxt->md5_i;
+
+	if (len >= gap) {
+		bcopy((void *)input, (void *)(ctxt->md5_buf + ctxt->md5_i),
+			gap);
+		md5_calc(ctxt->md5_buf, ctxt);
+
+		for (i = gap; i + MD5_BUFLEN <= len; i += MD5_BUFLEN) {
+			md5_calc((u_int8_t *)(input + i), ctxt);
+		}
+		
+		ctxt->md5_i = len - i;
+		bcopy((void *)(input + i), (void *)ctxt->md5_buf, ctxt->md5_i);
+	} else {
+		bcopy((void *)input, (void *)(ctxt->md5_buf + ctxt->md5_i),
+			len);
+		ctxt->md5_i += len;
+	}
+}
+
+void md5_pad(ctxt)
+	md5_ctxt *ctxt;
+{
+	u_int gap;
+
+	/* Don't count up padding. Keep md5_n. */	
+	gap = MD5_BUFLEN - ctxt->md5_i;
+	if (gap > 8) {
+		bcopy(md5_paddat,
+		      (void *)(ctxt->md5_buf + ctxt->md5_i),
+		      gap - sizeof(ctxt->md5_n));
+	} else {
+		/* including gap == 8 */
+		bcopy(md5_paddat, (void *)(ctxt->md5_buf + ctxt->md5_i),
+			gap);
+		md5_calc(ctxt->md5_buf, ctxt);
+		bcopy((md5_paddat + gap),
+		      (void *)ctxt->md5_buf,
+		      MD5_BUFLEN - sizeof(ctxt->md5_n));
+	}
+
+	/* 8 byte word */	
+#if BYTE_ORDER == LITTLE_ENDIAN
+	bcopy(&ctxt->md5_n8[0], &ctxt->md5_buf[56], 8);
+#endif
+#if BYTE_ORDER == BIG_ENDIAN
+	ctxt->md5_buf[56] = ctxt->md5_n8[7];
+	ctxt->md5_buf[57] = ctxt->md5_n8[6];
+	ctxt->md5_buf[58] = ctxt->md5_n8[5];
+	ctxt->md5_buf[59] = ctxt->md5_n8[4];
+	ctxt->md5_buf[60] = ctxt->md5_n8[3];
+	ctxt->md5_buf[61] = ctxt->md5_n8[2];
+	ctxt->md5_buf[62] = ctxt->md5_n8[1];
+	ctxt->md5_buf[63] = ctxt->md5_n8[0];
+#endif
+
+	md5_calc(ctxt->md5_buf, ctxt);
+}
+
+void md5_result(digest, ctxt)
+	u_int8_t *digest;
+	md5_ctxt *ctxt;
+{
+	/* 4 byte words */
+#if BYTE_ORDER == LITTLE_ENDIAN
+	bcopy(&ctxt->md5_st8[0], digest, 16);
+#endif
+#if BYTE_ORDER == BIG_ENDIAN
+	digest[ 0] = ctxt->md5_st8[ 3]; digest[ 1] = ctxt->md5_st8[ 2];
+	digest[ 2] = ctxt->md5_st8[ 1]; digest[ 3] = ctxt->md5_st8[ 0];
+	digest[ 4] = ctxt->md5_st8[ 7]; digest[ 5] = ctxt->md5_st8[ 6];
+	digest[ 6] = ctxt->md5_st8[ 5]; digest[ 7] = ctxt->md5_st8[ 4];
+	digest[ 8] = ctxt->md5_st8[11]; digest[ 9] = ctxt->md5_st8[10];
+	digest[10] = ctxt->md5_st8[ 9]; digest[11] = ctxt->md5_st8[ 8];
+	digest[12] = ctxt->md5_st8[15]; digest[13] = ctxt->md5_st8[14];
+	digest[14] = ctxt->md5_st8[13]; digest[15] = ctxt->md5_st8[12];
+#endif
+}
+
+static void md5_calc(b64, ctxt)
+	u_int8_t *b64;
+	md5_ctxt *ctxt;
+{
+	u_int32_t A = ctxt->md5_sta;
+	u_int32_t B = ctxt->md5_stb;
+	u_int32_t C = ctxt->md5_stc;
+	u_int32_t D = ctxt->md5_std;
+#if BYTE_ORDER == LITTLE_ENDIAN
+	u_int32_t *X = (u_int32_t *)b64;
+#endif	
+#if BYTE_ORDER == BIG_ENDIAN
+	/* 4 byte words */
+	/* what a brute force but fast! */
+	u_int32_t X[16];
+	u_int8_t *y = (u_int8_t *)X;
+	y[ 0] = b64[ 3]; y[ 1] = b64[ 2]; y[ 2] = b64[ 1]; y[ 3] = b64[ 0];
+	y[ 4] = b64[ 7]; y[ 5] = b64[ 6]; y[ 6] = b64[ 5]; y[ 7] = b64[ 4];
+	y[ 8] = b64[11]; y[ 9] = b64[10]; y[10] = b64[ 9]; y[11] = b64[ 8];
+	y[12] = b64[15]; y[13] = b64[14]; y[14] = b64[13]; y[15] = b64[12];
+	y[16] = b64[19]; y[17] = b64[18]; y[18] = b64[17]; y[19] = b64[16];
+	y[20] = b64[23]; y[21] = b64[22]; y[22] = b64[21]; y[23] = b64[20];
+	y[24] = b64[27]; y[25] = b64[26]; y[26] = b64[25]; y[27] = b64[24];
+	y[28] = b64[31]; y[29] = b64[30]; y[30] = b64[29]; y[31] = b64[28];
+	y[32] = b64[35]; y[33] = b64[34]; y[34] = b64[33]; y[35] = b64[32];
+	y[36] = b64[39]; y[37] = b64[38]; y[38] = b64[37]; y[39] = b64[36];
+	y[40] = b64[43]; y[41] = b64[42]; y[42] = b64[41]; y[43] = b64[40];
+	y[44] = b64[47]; y[45] = b64[46]; y[46] = b64[45]; y[47] = b64[44];
+	y[48] = b64[51]; y[49] = b64[50]; y[50] = b64[49]; y[51] = b64[48];
+	y[52] = b64[55]; y[53] = b64[54]; y[54] = b64[53]; y[55] = b64[52];
+	y[56] = b64[59]; y[57] = b64[58]; y[58] = b64[57]; y[59] = b64[56];
+	y[60] = b64[63]; y[61] = b64[62]; y[62] = b64[61]; y[63] = b64[60];
+#endif
+
+	ROUND1(A, B, C, D,  0, Sa,  1); ROUND1(D, A, B, C,  1, Sb,  2);
+	ROUND1(C, D, A, B,  2, Sc,  3); ROUND1(B, C, D, A,  3, Sd,  4);
+	ROUND1(A, B, C, D,  4, Sa,  5); ROUND1(D, A, B, C,  5, Sb,  6);
+	ROUND1(C, D, A, B,  6, Sc,  7); ROUND1(B, C, D, A,  7, Sd,  8);
+	ROUND1(A, B, C, D,  8, Sa,  9); ROUND1(D, A, B, C,  9, Sb, 10);
+	ROUND1(C, D, A, B, 10, Sc, 11); ROUND1(B, C, D, A, 11, Sd, 12);
+	ROUND1(A, B, C, D, 12, Sa, 13); ROUND1(D, A, B, C, 13, Sb, 14);
+	ROUND1(C, D, A, B, 14, Sc, 15); ROUND1(B, C, D, A, 15, Sd, 16);
+	
+	ROUND2(A, B, C, D,  1, Se, 17); ROUND2(D, A, B, C,  6, Sf, 18);
+	ROUND2(C, D, A, B, 11, Sg, 19); ROUND2(B, C, D, A,  0, Sh, 20);
+	ROUND2(A, B, C, D,  5, Se, 21); ROUND2(D, A, B, C, 10, Sf, 22);
+	ROUND2(C, D, A, B, 15, Sg, 23); ROUND2(B, C, D, A,  4, Sh, 24);
+	ROUND2(A, B, C, D,  9, Se, 25); ROUND2(D, A, B, C, 14, Sf, 26);
+	ROUND2(C, D, A, B,  3, Sg, 27); ROUND2(B, C, D, A,  8, Sh, 28);
+	ROUND2(A, B, C, D, 13, Se, 29); ROUND2(D, A, B, C,  2, Sf, 30);
+	ROUND2(C, D, A, B,  7, Sg, 31); ROUND2(B, C, D, A, 12, Sh, 32);
+
+	ROUND3(A, B, C, D,  5, Si, 33); ROUND3(D, A, B, C,  8, Sj, 34);
+	ROUND3(C, D, A, B, 11, Sk, 35); ROUND3(B, C, D, A, 14, Sl, 36);
+	ROUND3(A, B, C, D,  1, Si, 37); ROUND3(D, A, B, C,  4, Sj, 38);
+	ROUND3(C, D, A, B,  7, Sk, 39); ROUND3(B, C, D, A, 10, Sl, 40);
+	ROUND3(A, B, C, D, 13, Si, 41); ROUND3(D, A, B, C,  0, Sj, 42);
+	ROUND3(C, D, A, B,  3, Sk, 43); ROUND3(B, C, D, A,  6, Sl, 44);
+	ROUND3(A, B, C, D,  9, Si, 45); ROUND3(D, A, B, C, 12, Sj, 46);
+	ROUND3(C, D, A, B, 15, Sk, 47); ROUND3(B, C, D, A,  2, Sl, 48);
+	
+	ROUND4(A, B, C, D,  0, Sm, 49); ROUND4(D, A, B, C,  7, Sn, 50);	
+	ROUND4(C, D, A, B, 14, So, 51); ROUND4(B, C, D, A,  5, Sp, 52);	
+	ROUND4(A, B, C, D, 12, Sm, 53); ROUND4(D, A, B, C,  3, Sn, 54);	
+	ROUND4(C, D, A, B, 10, So, 55); ROUND4(B, C, D, A,  1, Sp, 56);	
+	ROUND4(A, B, C, D,  8, Sm, 57); ROUND4(D, A, B, C, 15, Sn, 58);	
+	ROUND4(C, D, A, B,  6, So, 59); ROUND4(B, C, D, A, 13, Sp, 60);	
+	ROUND4(A, B, C, D,  4, Sm, 61); ROUND4(D, A, B, C, 11, Sn, 62);	
+	ROUND4(C, D, A, B,  2, So, 63); ROUND4(B, C, D, A,  9, Sp, 64);
+
+	ctxt->md5_sta += A;
+	ctxt->md5_stb += B;
+	ctxt->md5_stc += C;
+	ctxt->md5_std += D;
+}
diff -Nur linux-2.6.29.1.orig/crypto/ocf/safe/md5.h linux-2.6.29.1/crypto/ocf/safe/md5.h
--- linux-2.6.29.1.orig/crypto/ocf/safe/md5.h	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/safe/md5.h	2009-04-20 20:01:21.588561893 +0200
@@ -0,0 +1,76 @@
+/*	$FreeBSD: src/sys/crypto/md5.h,v 1.4 2002/03/20 05:13:50 alfred Exp $	*/
+/*	$KAME: md5.h,v 1.4 2000/03/27 04:36:22 sumikawa Exp $	*/
+
+/*
+ * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _NETINET6_MD5_H_
+#define _NETINET6_MD5_H_
+
+#define MD5_BUFLEN	64
+
+typedef struct {
+	union {
+		u_int32_t	md5_state32[4];
+		u_int8_t	md5_state8[16];
+	} md5_st;
+
+#define md5_sta		md5_st.md5_state32[0]
+#define md5_stb		md5_st.md5_state32[1]
+#define md5_stc		md5_st.md5_state32[2]
+#define md5_std		md5_st.md5_state32[3]
+#define md5_st8		md5_st.md5_state8
+
+	union {
+		u_int64_t	md5_count64;
+		u_int8_t	md5_count8[8];
+	} md5_count;
+#define md5_n	md5_count.md5_count64
+#define md5_n8	md5_count.md5_count8
+
+	u_int	md5_i;
+	u_int8_t	md5_buf[MD5_BUFLEN];
+} md5_ctxt;
+
+extern void md5_init(md5_ctxt *);
+extern void md5_loop(md5_ctxt *, u_int8_t *, u_int);
+extern void md5_pad(md5_ctxt *);
+extern void md5_result(u_int8_t *, md5_ctxt *);
+
+/* compatibility */
+#define MD5_CTX		md5_ctxt
+#define MD5Init(x)	md5_init((x))
+#define MD5Update(x, y, z)	md5_loop((x), (y), (z))
+#define MD5Final(x, y) \
+do {				\
+	md5_pad((y));		\
+	md5_result((x), (y));	\
+} while (0)
+
+#endif /* ! _NETINET6_MD5_H_*/
diff -Nur linux-2.6.29.1.orig/crypto/ocf/safe/safe.c linux-2.6.29.1/crypto/ocf/safe/safe.c
--- linux-2.6.29.1.orig/crypto/ocf/safe/safe.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/safe/safe.c	2009-04-20 20:01:21.596561515 +0200
@@ -0,0 +1,2288 @@
+/*-
+ * Linux port done by David McCullough <david_mccullough@securecomputing.com>
+ * Copyright (C) 2004-2007 David McCullough
+ * The license and original author are listed below.
+ *
+ * Copyright (c) 2003 Sam Leffler, Errno Consulting
+ * Copyright (c) 2003 Global Technology Associates, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+__FBSDID("$FreeBSD: src/sys/dev/safe/safe.c,v 1.18 2007/03/21 03:42:50 sam Exp $");
+ */
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/wait.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/random.h>
+#include <linux/version.h>
+#include <linux/skbuff.h>
+#include <asm/io.h>
+
+/*
+ * SafeNet SafeXcel-1141 hardware crypto accelerator
+ */
+
+#include <cryptodev.h>
+#include <uio.h>
+#include <safe/safereg.h>
+#include <safe/safevar.h>
+
+#if 1
+#define	DPRINTF(a)	do { \
+						if (debug) { \
+							printk("%s: ", sc ? \
+								device_get_nameunit(sc->sc_dev) : "safe"); \
+							printk a; \
+						} \
+					} while (0)
+#else
+#define	DPRINTF(a)
+#endif
+
+/*
+ * until we find a cleaner way, include the BSD md5/sha1 code
+ * here
+ */
+#define HMAC_HACK 1
+#ifdef HMAC_HACK
+#define LITTLE_ENDIAN 1234
+#define BIG_ENDIAN 4321
+#ifdef __LITTLE_ENDIAN
+#define BYTE_ORDER LITTLE_ENDIAN
+#endif
+#ifdef __BIG_ENDIAN
+#define BYTE_ORDER BIG_ENDIAN
+#endif
+#include <safe/md5.h>
+#include <safe/md5.c>
+#include <safe/sha1.h>
+#include <safe/sha1.c>
+
+u_int8_t hmac_ipad_buffer[64] = {
+    0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+    0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+    0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+    0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+    0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+    0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+    0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+    0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36
+};
+
+u_int8_t hmac_opad_buffer[64] = {
+    0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C,
+    0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C,
+    0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C,
+    0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C,
+    0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C,
+    0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C,
+    0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C,
+    0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C
+};
+#endif /* HMAC_HACK */
+
+/* add proc entry for this */
+struct safe_stats safestats;
+
+#define debug safe_debug
+int safe_debug = 0;
+module_param(safe_debug, int, 0644);
+MODULE_PARM_DESC(safe_debug, "Enable debug");
+
+static	void safe_callback(struct safe_softc *, struct safe_ringentry *);
+static	void safe_feed(struct safe_softc *, struct safe_ringentry *);
+#if defined(CONFIG_OCF_RANDOMHARVEST) && !defined(SAFE_NO_RNG)
+static	void safe_rng_init(struct safe_softc *);
+int safe_rngbufsize = 8;		/* 32 bytes each read  */
+module_param(safe_rngbufsize, int, 0644);
+MODULE_PARM_DESC(safe_rngbufsize, "RNG polling buffer size (32-bit words)");
+int safe_rngmaxalarm = 8;		/* max alarms before reset */
+module_param(safe_rngmaxalarm, int, 0644);
+MODULE_PARM_DESC(safe_rngmaxalarm, "RNG max alarms before reset");
+#endif /* SAFE_NO_RNG */
+
+static void safe_totalreset(struct safe_softc *sc);
+static int safe_dmamap_aligned(struct safe_softc *sc, const struct safe_operand *op);
+static int safe_dmamap_uniform(struct safe_softc *sc, const struct safe_operand *op);
+static int safe_free_entry(struct safe_softc *sc, struct safe_ringentry *re);
+static int safe_kprocess(device_t dev, struct cryptkop *krp, int hint);
+static int safe_kstart(struct safe_softc *sc);
+static int safe_ksigbits(struct safe_softc *sc, struct crparam *cr);
+static void safe_kfeed(struct safe_softc *sc);
+static void safe_kpoll(unsigned long arg);
+static void safe_kload_reg(struct safe_softc *sc, u_int32_t off,
+								u_int32_t len, struct crparam *n);
+
+static	int safe_newsession(device_t, u_int32_t *, struct cryptoini *);
+static	int safe_freesession(device_t, u_int64_t);
+static	int safe_process(device_t, struct cryptop *, int);
+
+static device_method_t safe_methods = {
+	/* crypto device methods */
+	DEVMETHOD(cryptodev_newsession,	safe_newsession),
+	DEVMETHOD(cryptodev_freesession,safe_freesession),
+	DEVMETHOD(cryptodev_process,	safe_process),
+	DEVMETHOD(cryptodev_kprocess,	safe_kprocess),
+};
+
+#define	READ_REG(sc,r)			readl((sc)->sc_base_addr + (r))
+#define WRITE_REG(sc,r,val)		writel((val), (sc)->sc_base_addr + (r))
+
+#define SAFE_MAX_CHIPS 8
+static struct safe_softc *safe_chip_idx[SAFE_MAX_CHIPS];
+
+/*
+ * split our buffers up into safe DMAable byte fragments to avoid lockup
+ * bug in 1141 HW on rev 1.0.
+ */
+
+static int
+pci_map_linear(
+	struct safe_softc *sc,
+	struct safe_operand *buf,
+	void *addr,
+	int len)
+{
+	dma_addr_t tmp;
+	int chunk, tlen = len;
+
+	tmp = pci_map_single(sc->sc_pcidev, addr, len, PCI_DMA_BIDIRECTIONAL);
+
+	buf->mapsize += len;
+	while (len > 0) {
+		chunk = (len > sc->sc_max_dsize) ? sc->sc_max_dsize : len;
+		buf->segs[buf->nsegs].ds_addr = tmp;
+		buf->segs[buf->nsegs].ds_len  = chunk;
+		buf->segs[buf->nsegs].ds_tlen = tlen;
+		buf->nsegs++;
+		tmp  += chunk;
+		len  -= chunk;
+		tlen = 0;
+	}
+	return 0;
+}
+
+/*
+ * map in a given uio buffer (great on some arches :-)
+ */
+
+static int
+pci_map_uio(struct safe_softc *sc, struct safe_operand *buf, struct uio *uio)
+{
+	struct iovec *iov = uio->uio_iov;
+	int n;
+
+	DPRINTF(("%s()\n", __FUNCTION__));
+
+	buf->mapsize = 0;
+	buf->nsegs = 0;
+
+	for (n = 0; n < uio->uio_iovcnt; n++) {
+		pci_map_linear(sc, buf, iov->iov_base, iov->iov_len);
+		iov++;
+	}
+
+	/* identify this buffer by the first segment */
+	buf->map = (void *) buf->segs[0].ds_addr;
+	return(0);
+}
+
+/*
+ * map in a given sk_buff
+ */
+
+static int
+pci_map_skb(struct safe_softc *sc,struct safe_operand *buf,struct sk_buff *skb)
+{
+	int i;
+
+	DPRINTF(("%s()\n", __FUNCTION__));
+
+	buf->mapsize = 0;
+	buf->nsegs = 0;
+
+	pci_map_linear(sc, buf, skb->data, skb_headlen(skb));
+
+	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+		pci_map_linear(sc, buf,
+				page_address(skb_shinfo(skb)->frags[i].page) +
+				                        skb_shinfo(skb)->frags[i].page_offset,
+				skb_shinfo(skb)->frags[i].size);
+	}
+
+	/* identify this buffer by the first segment */
+	buf->map = (void *) buf->segs[0].ds_addr;
+	return(0);
+}
+
+
+#if 0 /* not needed at this time */
+static void
+pci_sync_operand(struct safe_softc *sc, struct safe_operand *buf)
+{
+	int i;
+
+	DPRINTF(("%s()\n", __FUNCTION__));
+	for (i = 0; i < buf->nsegs; i++)
+		pci_dma_sync_single_for_cpu(sc->sc_pcidev, buf->segs[i].ds_addr,
+				buf->segs[i].ds_len, PCI_DMA_BIDIRECTIONAL);
+}
+#endif
+
+static void
+pci_unmap_operand(struct safe_softc *sc, struct safe_operand *buf)
+{
+	int i;
+	DPRINTF(("%s()\n", __FUNCTION__));
+	for (i = 0; i < buf->nsegs; i++) {
+		if (buf->segs[i].ds_tlen) {
+			DPRINTF(("%s - unmap %d 0x%x %d\n", __FUNCTION__, i, buf->segs[i].ds_addr, buf->segs[i].ds_tlen));
+			pci_unmap_single(sc->sc_pcidev, buf->segs[i].ds_addr,
+					buf->segs[i].ds_tlen, PCI_DMA_BIDIRECTIONAL);
+			DPRINTF(("%s - unmap %d 0x%x %d done\n", __FUNCTION__, i, buf->segs[i].ds_addr, buf->segs[i].ds_tlen));
+		}
+		buf->segs[i].ds_addr = 0;
+		buf->segs[i].ds_len = 0;
+		buf->segs[i].ds_tlen = 0;
+	}
+	buf->nsegs = 0;
+	buf->mapsize = 0;
+	buf->map = 0;
+}
+
+
+/*
+ * SafeXcel Interrupt routine
+ */
+static irqreturn_t
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19)
+safe_intr(int irq, void *arg)
+#else
+safe_intr(int irq, void *arg, struct pt_regs *regs)
+#endif
+{
+	struct safe_softc *sc = arg;
+	int stat;
+	unsigned long flags;
+
+	stat = READ_REG(sc, SAFE_HM_STAT);
+
+	DPRINTF(("%s(stat=0x%x)\n", __FUNCTION__, stat));
+
+	if (stat == 0)		/* shared irq, not for us */
+		return IRQ_NONE;
+
+	WRITE_REG(sc, SAFE_HI_CLR, stat);	/* IACK */
+
+	if ((stat & SAFE_INT_PE_DDONE)) {
+		/*
+		 * Descriptor(s) done; scan the ring and
+		 * process completed operations.
+		 */
+		spin_lock_irqsave(&sc->sc_ringmtx, flags);
+		while (sc->sc_back != sc->sc_front) {
+			struct safe_ringentry *re = sc->sc_back;
+
+#ifdef SAFE_DEBUG
+			if (debug) {
+				safe_dump_ringstate(sc, __func__);
+				safe_dump_request(sc, __func__, re);
+			}
+#endif
+			/*
+			 * safe_process marks ring entries that were allocated
+			 * but not used with a csr of zero.  This insures the
+			 * ring front pointer never needs to be set backwards
+			 * in the event that an entry is allocated but not used
+			 * because of a setup error.
+			 */
+			DPRINTF(("%s re->re_desc.d_csr=0x%x\n", __FUNCTION__, re->re_desc.d_csr));
+			if (re->re_desc.d_csr != 0) {
+				if (!SAFE_PE_CSR_IS_DONE(re->re_desc.d_csr)) {
+					DPRINTF(("%s !CSR_IS_DONE\n", __FUNCTION__));
+					break;
+				}
+				if (!SAFE_PE_LEN_IS_DONE(re->re_desc.d_len)) {
+					DPRINTF(("%s !LEN_IS_DONE\n", __FUNCTION__));
+					break;
+				}
+				sc->sc_nqchip--;
+				safe_callback(sc, re);
+			}
+			if (++(sc->sc_back) == sc->sc_ringtop)
+				sc->sc_back = sc->sc_ring;
+		}
+		spin_unlock_irqrestore(&sc->sc_ringmtx, flags);
+	}
+
+	/*
+	 * Check to see if we got any DMA Error
+	 */
+	if (stat & SAFE_INT_PE_ERROR) {
+		printk("%s: dmaerr dmastat %08x\n", device_get_nameunit(sc->sc_dev),
+				(int)READ_REG(sc, SAFE_PE_DMASTAT));
+		safestats.st_dmaerr++;
+		safe_totalreset(sc);
+#if 0
+		safe_feed(sc);
+#endif
+	}
+
+	if (sc->sc_needwakeup) {		/* XXX check high watermark */
+		int wakeup = sc->sc_needwakeup & (CRYPTO_SYMQ|CRYPTO_ASYMQ);
+		DPRINTF(("%s: wakeup crypto %x\n", __func__,
+			sc->sc_needwakeup));
+		sc->sc_needwakeup &= ~wakeup;
+		crypto_unblock(sc->sc_cid, wakeup);
+	}
+	
+	return IRQ_HANDLED;
+}
+
+/*
+ * safe_feed() - post a request to chip
+ */
+static void
+safe_feed(struct safe_softc *sc, struct safe_ringentry *re)
+{
+	DPRINTF(("%s()\n", __FUNCTION__));
+#ifdef SAFE_DEBUG
+	if (debug) {
+		safe_dump_ringstate(sc, __func__);
+		safe_dump_request(sc, __func__, re);
+	}
+#endif
+	sc->sc_nqchip++;
+	if (sc->sc_nqchip > safestats.st_maxqchip)
+		safestats.st_maxqchip = sc->sc_nqchip;
+	/* poke h/w to check descriptor ring, any value can be written */
+	WRITE_REG(sc, SAFE_HI_RD_DESCR, 0);
+}
+
+#define	N(a)	(sizeof(a) / sizeof (a[0]))
+static void
+safe_setup_enckey(struct safe_session *ses, caddr_t key)
+{
+	int i;
+
+	bcopy(key, ses->ses_key, ses->ses_klen / 8);
+
+	/* PE is little-endian, insure proper byte order */
+	for (i = 0; i < N(ses->ses_key); i++)
+		ses->ses_key[i] = htole32(ses->ses_key[i]);
+}
+
+static void
+safe_setup_mackey(struct safe_session *ses, int algo, caddr_t key, int klen)
+{
+#ifdef HMAC_HACK
+	MD5_CTX md5ctx;
+	SHA1_CTX sha1ctx;
+	int i;
+
+
+	for (i = 0; i < klen; i++)
+		key[i] ^= HMAC_IPAD_VAL;
+
+	if (algo == CRYPTO_MD5_HMAC) {
+		MD5Init(&md5ctx);
+		MD5Update(&md5ctx, key, klen);
+		MD5Update(&md5ctx, hmac_ipad_buffer, MD5_HMAC_BLOCK_LEN - klen);
+		bcopy(md5ctx.md5_st8, ses->ses_hminner, sizeof(md5ctx.md5_st8));
+	} else {
+		SHA1Init(&sha1ctx);
+		SHA1Update(&sha1ctx, key, klen);
+		SHA1Update(&sha1ctx, hmac_ipad_buffer,
+		    SHA1_HMAC_BLOCK_LEN - klen);
+		bcopy(sha1ctx.h.b32, ses->ses_hminner, sizeof(sha1ctx.h.b32));
+	}
+
+	for (i = 0; i < klen; i++)
+		key[i] ^= (HMAC_IPAD_VAL ^ HMAC_OPAD_VAL);
+
+	if (algo == CRYPTO_MD5_HMAC) {
+		MD5Init(&md5ctx);
+		MD5Update(&md5ctx, key, klen);
+		MD5Update(&md5ctx, hmac_opad_buffer, MD5_HMAC_BLOCK_LEN - klen);
+		bcopy(md5ctx.md5_st8, ses->ses_hmouter, sizeof(md5ctx.md5_st8));
+	} else {
+		SHA1Init(&sha1ctx);
+		SHA1Update(&sha1ctx, key, klen);
+		SHA1Update(&sha1ctx, hmac_opad_buffer,
+		    SHA1_HMAC_BLOCK_LEN - klen);
+		bcopy(sha1ctx.h.b32, ses->ses_hmouter, sizeof(sha1ctx.h.b32));
+	}
+
+	for (i = 0; i < klen; i++)
+		key[i] ^= HMAC_OPAD_VAL;
+
+#if 0
+	/*
+	 * this code prevents SHA working on a BE host,
+	 * so it is obviously wrong.  I think the byte
+	 * swap setup we do with the chip fixes this for us
+	 */
+
+	/* PE is little-endian, insure proper byte order */
+	for (i = 0; i < N(ses->ses_hminner); i++) {
+		ses->ses_hminner[i] = htole32(ses->ses_hminner[i]);
+		ses->ses_hmouter[i] = htole32(ses->ses_hmouter[i]);
+	}
+#endif
+#else /* HMAC_HACK */
+	printk("safe: md5/sha not implemented\n");
+#endif /* HMAC_HACK */
+}
+#undef N
+
+/*
+ * Allocate a new 'session' and return an encoded session id.  'sidp'
+ * contains our registration id, and should contain an encoded session
+ * id on successful allocation.
+ */
+static int
+safe_newsession(device_t dev, u_int32_t *sidp, struct cryptoini *cri)
+{
+	struct safe_softc *sc = device_get_softc(dev);
+	struct cryptoini *c, *encini = NULL, *macini = NULL;
+	struct safe_session *ses = NULL;
+	int sesn;
+
+	DPRINTF(("%s()\n", __FUNCTION__));
+
+	if (sidp == NULL || cri == NULL || sc == NULL)
+		return (EINVAL);
+
+	for (c = cri; c != NULL; c = c->cri_next) {
+		if (c->cri_alg == CRYPTO_MD5_HMAC ||
+		    c->cri_alg == CRYPTO_SHA1_HMAC ||
+		    c->cri_alg == CRYPTO_NULL_HMAC) {
+			if (macini)
+				return (EINVAL);
+			macini = c;
+		} else if (c->cri_alg == CRYPTO_DES_CBC ||
+		    c->cri_alg == CRYPTO_3DES_CBC ||
+		    c->cri_alg == CRYPTO_AES_CBC ||
+		    c->cri_alg == CRYPTO_NULL_CBC) {
+			if (encini)
+				return (EINVAL);
+			encini = c;
+		} else
+			return (EINVAL);
+	}
+	if (encini == NULL && macini == NULL)
+		return (EINVAL);
+	if (encini) {			/* validate key length */
+		switch (encini->cri_alg) {
+		case CRYPTO_DES_CBC:
+			if (encini->cri_klen != 64)
+				return (EINVAL);
+			break;
+		case CRYPTO_3DES_CBC:
+			if (encini->cri_klen != 192)
+				return (EINVAL);
+			break;
+		case CRYPTO_AES_CBC:
+			if (encini->cri_klen != 128 &&
+			    encini->cri_klen != 192 &&
+			    encini->cri_klen != 256)
+				return (EINVAL);
+			break;
+		}
+	}
+
+	if (sc->sc_sessions == NULL) {
+		ses = sc->sc_sessions = (struct safe_session *)
+			kmalloc(sizeof(struct safe_session), SLAB_ATOMIC);
+		if (ses == NULL)
+			return (ENOMEM);
+		memset(ses, 0, sizeof(struct safe_session));
+		sesn = 0;
+		sc->sc_nsessions = 1;
+	} else {
+		for (sesn = 0; sesn < sc->sc_nsessions; sesn++) {
+			if (sc->sc_sessions[sesn].ses_used == 0) {
+				ses = &sc->sc_sessions[sesn];
+				break;
+			}
+		}
+
+		if (ses == NULL) {
+			sesn = sc->sc_nsessions;
+			ses = (struct safe_session *)
+				kmalloc((sesn + 1) * sizeof(struct safe_session), SLAB_ATOMIC);
+			if (ses == NULL)
+				return (ENOMEM);
+			memset(ses, 0, (sesn + 1) * sizeof(struct safe_session));
+			bcopy(sc->sc_sessions, ses, sesn *
+			    sizeof(struct safe_session));
+			bzero(sc->sc_sessions, sesn *
+			    sizeof(struct safe_session));
+			kfree(sc->sc_sessions);
+			sc->sc_sessions = ses;
+			ses = &sc->sc_sessions[sesn];
+			sc->sc_nsessions++;
+		}
+	}
+
+	bzero(ses, sizeof(struct safe_session));
+	ses->ses_used = 1;
+
+	if (encini) {
+		/* get an IV */
+		/* XXX may read fewer than requested */
+		read_random(ses->ses_iv, sizeof(ses->ses_iv));
+
+		ses->ses_klen = encini->cri_klen;
+		if (encini->cri_key != NULL)
+			safe_setup_enckey(ses, encini->cri_key);
+	}
+
+	if (macini) {
+		ses->ses_mlen = macini->cri_mlen;
+		if (ses->ses_mlen == 0) {
+			if (macini->cri_alg == CRYPTO_MD5_HMAC)
+				ses->ses_mlen = MD5_HASH_LEN;
+			else
+				ses->ses_mlen = SHA1_HASH_LEN;
+		}
+
+		if (macini->cri_key != NULL) {
+			safe_setup_mackey(ses, macini->cri_alg, macini->cri_key,
+			    macini->cri_klen / 8);
+		}
+	}
+
+	*sidp = SAFE_SID(device_get_unit(sc->sc_dev), sesn);
+	return (0);
+}
+
+/*
+ * Deallocate a session.
+ */
+static int
+safe_freesession(device_t dev, u_int64_t tid)
+{
+	struct safe_softc *sc = device_get_softc(dev);
+	int session, ret;
+	u_int32_t sid = ((u_int32_t) tid) & 0xffffffff;
+
+	DPRINTF(("%s()\n", __FUNCTION__));
+
+	if (sc == NULL)
+		return (EINVAL);
+
+	session = SAFE_SESSION(sid);
+	if (session < sc->sc_nsessions) {
+		bzero(&sc->sc_sessions[session], sizeof(sc->sc_sessions[session]));
+		ret = 0;
+	} else
+		ret = EINVAL;
+	return (ret);
+}
+
+
+static int
+safe_process(device_t dev, struct cryptop *crp, int hint)
+{
+	struct safe_softc *sc = device_get_softc(dev);
+	int err = 0, i, nicealign, uniform;
+	struct cryptodesc *crd1, *crd2, *maccrd, *enccrd;
+	int bypass, oplen, ivsize;
+	caddr_t iv;
+	int16_t coffset;
+	struct safe_session *ses;
+	struct safe_ringentry *re;
+	struct safe_sarec *sa;
+	struct safe_pdesc *pd;
+	u_int32_t cmd0, cmd1, staterec;
+	unsigned long flags;
+
+	DPRINTF(("%s()\n", __FUNCTION__));
+
+	if (crp == NULL || crp->crp_callback == NULL || sc == NULL) {
+		safestats.st_invalid++;
+		return (EINVAL);
+	}
+	if (SAFE_SESSION(crp->crp_sid) >= sc->sc_nsessions) {
+		safestats.st_badsession++;
+		return (EINVAL);
+	}
+
+	spin_lock_irqsave(&sc->sc_ringmtx, flags);
+	if (sc->sc_front == sc->sc_back && sc->sc_nqchip != 0) {
+		safestats.st_ringfull++;
+		sc->sc_needwakeup |= CRYPTO_SYMQ;
+		spin_unlock_irqrestore(&sc->sc_ringmtx, flags);
+		return (ERESTART);
+	}
+	re = sc->sc_front;
+
+	staterec = re->re_sa.sa_staterec;	/* save */
+	/* NB: zero everything but the PE descriptor */
+	bzero(&re->re_sa, sizeof(struct safe_ringentry) - sizeof(re->re_desc));
+	re->re_sa.sa_staterec = staterec;	/* restore */
+
+	re->re_crp = crp;
+	re->re_sesn = SAFE_SESSION(crp->crp_sid);
+
+	re->re_src.nsegs = 0;
+	re->re_dst.nsegs = 0;
+
+	if (crp->crp_flags & CRYPTO_F_SKBUF) {
+		re->re_src_skb = (struct sk_buff *)crp->crp_buf;
+		re->re_dst_skb = (struct sk_buff *)crp->crp_buf;
+	} else if (crp->crp_flags & CRYPTO_F_IOV) {
+		re->re_src_io = (struct uio *)crp->crp_buf;
+		re->re_dst_io = (struct uio *)crp->crp_buf;
+	} else {
+		safestats.st_badflags++;
+		err = EINVAL;
+		goto errout;	/* XXX we don't handle contiguous blocks! */
+	}
+
+	sa = &re->re_sa;
+	ses = &sc->sc_sessions[re->re_sesn];
+
+	crd1 = crp->crp_desc;
+	if (crd1 == NULL) {
+		safestats.st_nodesc++;
+		err = EINVAL;
+		goto errout;
+	}
+	crd2 = crd1->crd_next;
+
+	cmd0 = SAFE_SA_CMD0_BASIC;		/* basic group operation */
+	cmd1 = 0;
+	if (crd2 == NULL) {
+		if (crd1->crd_alg == CRYPTO_MD5_HMAC ||
+		    crd1->crd_alg == CRYPTO_SHA1_HMAC ||
+		    crd1->crd_alg == CRYPTO_NULL_HMAC) {
+			maccrd = crd1;
+			enccrd = NULL;
+			cmd0 |= SAFE_SA_CMD0_OP_HASH;
+		} else if (crd1->crd_alg == CRYPTO_DES_CBC ||
+		    crd1->crd_alg == CRYPTO_3DES_CBC ||
+		    crd1->crd_alg == CRYPTO_AES_CBC ||
+		    crd1->crd_alg == CRYPTO_NULL_CBC) {
+			maccrd = NULL;
+			enccrd = crd1;
+			cmd0 |= SAFE_SA_CMD0_OP_CRYPT;
+		} else {
+			safestats.st_badalg++;
+			err = EINVAL;
+			goto errout;
+		}
+	} else {
+		if ((crd1->crd_alg == CRYPTO_MD5_HMAC ||
+		    crd1->crd_alg == CRYPTO_SHA1_HMAC ||
+		    crd1->crd_alg == CRYPTO_NULL_HMAC) &&
+		    (crd2->crd_alg == CRYPTO_DES_CBC ||
+			crd2->crd_alg == CRYPTO_3DES_CBC ||
+		        crd2->crd_alg == CRYPTO_AES_CBC ||
+		        crd2->crd_alg == CRYPTO_NULL_CBC) &&
+		    ((crd2->crd_flags & CRD_F_ENCRYPT) == 0)) {
+			maccrd = crd1;
+			enccrd = crd2;
+		} else if ((crd1->crd_alg == CRYPTO_DES_CBC ||
+		    crd1->crd_alg == CRYPTO_3DES_CBC ||
+		    crd1->crd_alg == CRYPTO_AES_CBC ||
+		    crd1->crd_alg == CRYPTO_NULL_CBC) &&
+		    (crd2->crd_alg == CRYPTO_MD5_HMAC ||
+			crd2->crd_alg == CRYPTO_SHA1_HMAC ||
+			crd2->crd_alg == CRYPTO_NULL_HMAC) &&
+		    (crd1->crd_flags & CRD_F_ENCRYPT)) {
+			enccrd = crd1;
+			maccrd = crd2;
+		} else {
+			safestats.st_badalg++;
+			err = EINVAL;
+			goto errout;
+		}
+		cmd0 |= SAFE_SA_CMD0_OP_BOTH;
+	}
+
+	if (enccrd) {
+		if (enccrd->crd_flags & CRD_F_KEY_EXPLICIT)
+			safe_setup_enckey(ses, enccrd->crd_key);
+
+		if (enccrd->crd_alg == CRYPTO_DES_CBC) {
+			cmd0 |= SAFE_SA_CMD0_DES;
+			cmd1 |= SAFE_SA_CMD1_CBC;
+			ivsize = 2*sizeof(u_int32_t);
+		} else if (enccrd->crd_alg == CRYPTO_3DES_CBC) {
+			cmd0 |= SAFE_SA_CMD0_3DES;
+			cmd1 |= SAFE_SA_CMD1_CBC;
+			ivsize = 2*sizeof(u_int32_t);
+		} else if (enccrd->crd_alg == CRYPTO_AES_CBC) {
+			cmd0 |= SAFE_SA_CMD0_AES;
+			cmd1 |= SAFE_SA_CMD1_CBC;
+			if (ses->ses_klen == 128)
+			     cmd1 |=  SAFE_SA_CMD1_AES128;
+			else if (ses->ses_klen == 192)
+			     cmd1 |=  SAFE_SA_CMD1_AES192;
+			else
+			     cmd1 |=  SAFE_SA_CMD1_AES256;
+			ivsize = 4*sizeof(u_int32_t);
+		} else {
+			cmd0 |= SAFE_SA_CMD0_CRYPT_NULL;
+			ivsize = 0;
+		}
+
+		/*
+		 * Setup encrypt/decrypt state.  When using basic ops
+		 * we can't use an inline IV because hash/crypt offset
+		 * must be from the end of the IV to the start of the
+		 * crypt data and this leaves out the preceding header
+		 * from the hash calculation.  Instead we place the IV
+		 * in the state record and set the hash/crypt offset to
+		 * copy both the header+IV.
+		 */
+		if (enccrd->crd_flags & CRD_F_ENCRYPT) {
+			cmd0 |= SAFE_SA_CMD0_OUTBOUND;
+
+			if (enccrd->crd_flags & CRD_F_IV_EXPLICIT)
+				iv = enccrd->crd_iv;
+			else
+				iv = (caddr_t) ses->ses_iv;
+			if ((enccrd->crd_flags & CRD_F_IV_PRESENT) == 0) {
+				crypto_copyback(crp->crp_flags, crp->crp_buf,
+				    enccrd->crd_inject, ivsize, iv);
+			}
+			bcopy(iv, re->re_sastate.sa_saved_iv, ivsize);
+			/* make iv LE */
+			for (i = 0; i < ivsize/sizeof(re->re_sastate.sa_saved_iv[0]); i++)
+				re->re_sastate.sa_saved_iv[i] =
+					cpu_to_le32(re->re_sastate.sa_saved_iv[i]);
+			cmd0 |= SAFE_SA_CMD0_IVLD_STATE | SAFE_SA_CMD0_SAVEIV;
+			re->re_flags |= SAFE_QFLAGS_COPYOUTIV;
+		} else {
+			cmd0 |= SAFE_SA_CMD0_INBOUND;
+
+			if (enccrd->crd_flags & CRD_F_IV_EXPLICIT) {
+				bcopy(enccrd->crd_iv,
+					re->re_sastate.sa_saved_iv, ivsize);
+			} else {
+				crypto_copydata(crp->crp_flags, crp->crp_buf,
+				    enccrd->crd_inject, ivsize,
+				    (caddr_t)re->re_sastate.sa_saved_iv);
+			}
+			/* make iv LE */
+			for (i = 0; i < ivsize/sizeof(re->re_sastate.sa_saved_iv[0]); i++)
+				re->re_sastate.sa_saved_iv[i] =
+					cpu_to_le32(re->re_sastate.sa_saved_iv[i]);
+			cmd0 |= SAFE_SA_CMD0_IVLD_STATE;
+		}
+		/*
+		 * For basic encryption use the zero pad algorithm.
+		 * This pads results to an 8-byte boundary and
+		 * suppresses padding verification for inbound (i.e.
+		 * decrypt) operations.
+		 *
+		 * NB: Not sure if the 8-byte pad boundary is a problem.
+		 */
+		cmd0 |= SAFE_SA_CMD0_PAD_ZERO;
+
+		/* XXX assert key bufs have the same size */
+		bcopy(ses->ses_key, sa->sa_key, sizeof(sa->sa_key));
+	}
+
+	if (maccrd) {
+		if (maccrd->crd_flags & CRD_F_KEY_EXPLICIT) {
+			safe_setup_mackey(ses, maccrd->crd_alg,
+			    maccrd->crd_key, maccrd->crd_klen / 8);
+		}
+
+		if (maccrd->crd_alg == CRYPTO_MD5_HMAC) {
+			cmd0 |= SAFE_SA_CMD0_MD5;
+			cmd1 |= SAFE_SA_CMD1_HMAC;	/* NB: enable HMAC */
+		} else if (maccrd->crd_alg == CRYPTO_SHA1_HMAC) {
+			cmd0 |= SAFE_SA_CMD0_SHA1;
+			cmd1 |= SAFE_SA_CMD1_HMAC;	/* NB: enable HMAC */
+		} else {
+			cmd0 |= SAFE_SA_CMD0_HASH_NULL;
+		}
+		/*
+		 * Digest data is loaded from the SA and the hash
+		 * result is saved to the state block where we
+		 * retrieve it for return to the caller.
+		 */
+		/* XXX assert digest bufs have the same size */
+		bcopy(ses->ses_hminner, sa->sa_indigest,
+			sizeof(sa->sa_indigest));
+		bcopy(ses->ses_hmouter, sa->sa_outdigest,
+			sizeof(sa->sa_outdigest));
+
+		cmd0 |= SAFE_SA_CMD0_HSLD_SA | SAFE_SA_CMD0_SAVEHASH;
+		re->re_flags |= SAFE_QFLAGS_COPYOUTICV;
+	}
+
+	if (enccrd && maccrd) {
+		/*
+		 * The offset from hash data to the start of
+		 * crypt data is the difference in the skips.
+		 */
+		bypass = maccrd->crd_skip;
+		coffset = enccrd->crd_skip - maccrd->crd_skip;
+		if (coffset < 0) {
+			DPRINTF(("%s: hash does not precede crypt; "
+				"mac skip %u enc skip %u\n",
+				__func__, maccrd->crd_skip, enccrd->crd_skip));
+			safestats.st_skipmismatch++;
+			err = EINVAL;
+			goto errout;
+		}
+		oplen = enccrd->crd_skip + enccrd->crd_len;
+		if (maccrd->crd_skip + maccrd->crd_len != oplen) {
+			DPRINTF(("%s: hash amount %u != crypt amount %u\n",
+				__func__, maccrd->crd_skip + maccrd->crd_len,
+				oplen));
+			safestats.st_lenmismatch++;
+			err = EINVAL;
+			goto errout;
+		}
+#ifdef SAFE_DEBUG
+		if (debug) {
+			printf("mac: skip %d, len %d, inject %d\n",
+			    maccrd->crd_skip, maccrd->crd_len,
+			    maccrd->crd_inject);
+			printf("enc: skip %d, len %d, inject %d\n",
+			    enccrd->crd_skip, enccrd->crd_len,
+			    enccrd->crd_inject);
+			printf("bypass %d coffset %d oplen %d\n",
+				bypass, coffset, oplen);
+		}
+#endif
+		if (coffset & 3) {	/* offset must be 32-bit aligned */
+			DPRINTF(("%s: coffset %u misaligned\n",
+				__func__, coffset));
+			safestats.st_coffmisaligned++;
+			err = EINVAL;
+			goto errout;
+		}
+		coffset >>= 2;
+		if (coffset > 255) {	/* offset must be <256 dwords */
+			DPRINTF(("%s: coffset %u too big\n",
+				__func__, coffset));
+			safestats.st_cofftoobig++;
+			err = EINVAL;
+			goto errout;
+		}
+		/*
+		 * Tell the hardware to copy the header to the output.
+		 * The header is defined as the data from the end of
+		 * the bypass to the start of data to be encrypted. 
+		 * Typically this is the inline IV.  Note that you need
+		 * to do this even if src+dst are the same; it appears
+		 * that w/o this bit the crypted data is written
+		 * immediately after the bypass data.
+		 */
+		cmd1 |= SAFE_SA_CMD1_HDRCOPY;
+		/*
+		 * Disable IP header mutable bit handling.  This is
+		 * needed to get correct HMAC calculations.
+		 */
+		cmd1 |= SAFE_SA_CMD1_MUTABLE;
+	} else {
+		if (enccrd) {
+			bypass = enccrd->crd_skip;
+			oplen = bypass + enccrd->crd_len;
+		} else {
+			bypass = maccrd->crd_skip;
+			oplen = bypass + maccrd->crd_len;
+		}
+		coffset = 0;
+	}
+	/* XXX verify multiple of 4 when using s/g */
+	if (bypass > 96) {		/* bypass offset must be <= 96 bytes */
+		DPRINTF(("%s: bypass %u too big\n", __func__, bypass));
+		safestats.st_bypasstoobig++;
+		err = EINVAL;
+		goto errout;
+	}
+
+	if (crp->crp_flags & CRYPTO_F_SKBUF) {
+		if (pci_map_skb(sc, &re->re_src, re->re_src_skb)) {
+			safestats.st_noload++;
+			err = ENOMEM;
+			goto errout;
+		}
+	} else if (crp->crp_flags & CRYPTO_F_IOV) {
+		if (pci_map_uio(sc, &re->re_src, re->re_src_io)) {
+			safestats.st_noload++;
+			err = ENOMEM;
+			goto errout;
+		}
+	}
+	nicealign = safe_dmamap_aligned(sc, &re->re_src);
+	uniform = safe_dmamap_uniform(sc, &re->re_src);
+
+	DPRINTF(("src nicealign %u uniform %u nsegs %u\n",
+		nicealign, uniform, re->re_src.nsegs));
+	if (re->re_src.nsegs > 1) {
+		re->re_desc.d_src = sc->sc_spalloc.dma_paddr +
+			((caddr_t) sc->sc_spfree - (caddr_t) sc->sc_spring);
+		for (i = 0; i < re->re_src_nsegs; i++) {
+			/* NB: no need to check if there's space */
+			pd = sc->sc_spfree;
+			if (++(sc->sc_spfree) == sc->sc_springtop)
+				sc->sc_spfree = sc->sc_spring;
+
+			KASSERT((pd->pd_flags&3) == 0 ||
+				(pd->pd_flags&3) == SAFE_PD_DONE,
+				("bogus source particle descriptor; flags %x",
+				pd->pd_flags));
+			pd->pd_addr = re->re_src_segs[i].ds_addr;
+			pd->pd_size = re->re_src_segs[i].ds_len;
+			pd->pd_flags = SAFE_PD_READY;
+		}
+		cmd0 |= SAFE_SA_CMD0_IGATHER;
+	} else {
+		/*
+		 * No need for gather, reference the operand directly.
+		 */
+		re->re_desc.d_src = re->re_src_segs[0].ds_addr;
+	}
+
+	if (enccrd == NULL && maccrd != NULL) {
+		/*
+		 * Hash op; no destination needed.
+		 */
+	} else {
+		if (crp->crp_flags & (CRYPTO_F_IOV|CRYPTO_F_SKBUF)) {
+			if (!nicealign) {
+				safestats.st_iovmisaligned++;
+				err = EINVAL;
+				goto errout;
+			}
+			if (uniform != 1) {
+				device_printf(sc->sc_dev, "!uniform source\n");
+				if (!uniform) {
+					/*
+					 * There's no way to handle the DMA
+					 * requirements with this uio.  We
+					 * could create a separate DMA area for
+					 * the result and then copy it back,
+					 * but for now we just bail and return
+					 * an error.  Note that uio requests
+					 * > SAFE_MAX_DSIZE are handled because
+					 * the DMA map and segment list for the
+					 * destination wil result in a
+					 * destination particle list that does
+					 * the necessary scatter DMA.
+					 */ 
+					safestats.st_iovnotuniform++;
+					err = EINVAL;
+					goto errout;
+				}
+			} else
+				re->re_dst = re->re_src;
+		} else {
+			safestats.st_badflags++;
+			err = EINVAL;
+			goto errout;
+		}
+
+		if (re->re_dst.nsegs > 1) {
+			re->re_desc.d_dst = sc->sc_dpalloc.dma_paddr +
+			    ((caddr_t) sc->sc_dpfree - (caddr_t) sc->sc_dpring);
+			for (i = 0; i < re->re_dst_nsegs; i++) {
+				pd = sc->sc_dpfree;
+				KASSERT((pd->pd_flags&3) == 0 ||
+					(pd->pd_flags&3) == SAFE_PD_DONE,
+					("bogus dest particle descriptor; flags %x",
+						pd->pd_flags));
+				if (++(sc->sc_dpfree) == sc->sc_dpringtop)
+					sc->sc_dpfree = sc->sc_dpring;
+				pd->pd_addr = re->re_dst_segs[i].ds_addr;
+				pd->pd_flags = SAFE_PD_READY;
+			}
+			cmd0 |= SAFE_SA_CMD0_OSCATTER;
+		} else {
+			/*
+			 * No need for scatter, reference the operand directly.
+			 */
+			re->re_desc.d_dst = re->re_dst_segs[0].ds_addr;
+		}
+	}
+
+	/*
+	 * All done with setup; fillin the SA command words
+	 * and the packet engine descriptor.  The operation
+	 * is now ready for submission to the hardware.
+	 */
+	sa->sa_cmd0 = cmd0 | SAFE_SA_CMD0_IPCI | SAFE_SA_CMD0_OPCI;
+	sa->sa_cmd1 = cmd1
+		    | (coffset << SAFE_SA_CMD1_OFFSET_S)
+		    | SAFE_SA_CMD1_SAREV1	/* Rev 1 SA data structure */
+		    | SAFE_SA_CMD1_SRPCI
+		    ;
+	/*
+	 * NB: the order of writes is important here.  In case the
+	 * chip is scanning the ring because of an outstanding request
+	 * it might nab this one too.  In that case we need to make
+	 * sure the setup is complete before we write the length
+	 * field of the descriptor as it signals the descriptor is
+	 * ready for processing.
+	 */
+	re->re_desc.d_csr = SAFE_PE_CSR_READY | SAFE_PE_CSR_SAPCI;
+	if (maccrd)
+		re->re_desc.d_csr |= SAFE_PE_CSR_LOADSA | SAFE_PE_CSR_HASHFINAL;
+	wmb();
+	re->re_desc.d_len = oplen
+			  | SAFE_PE_LEN_READY
+			  | (bypass << SAFE_PE_LEN_BYPASS_S)
+			  ;
+
+	safestats.st_ipackets++;
+	safestats.st_ibytes += oplen;
+
+	if (++(sc->sc_front) == sc->sc_ringtop)
+		sc->sc_front = sc->sc_ring;
+
+	/* XXX honor batching */
+	safe_feed(sc, re);
+	spin_unlock_irqrestore(&sc->sc_ringmtx, flags);
+	return (0);
+
+errout:
+	if (re->re_src.map != re->re_dst.map)
+		pci_unmap_operand(sc, &re->re_dst);
+	if (re->re_src.map)
+		pci_unmap_operand(sc, &re->re_src);
+	spin_unlock_irqrestore(&sc->sc_ringmtx, flags);
+	if (err != ERESTART) {
+		crp->crp_etype = err;
+		crypto_done(crp);
+	} else {
+		sc->sc_needwakeup |= CRYPTO_SYMQ;
+	}
+	return (err);
+}
+
+static void
+safe_callback(struct safe_softc *sc, struct safe_ringentry *re)
+{
+	struct cryptop *crp = (struct cryptop *)re->re_crp;
+	struct cryptodesc *crd;
+
+	DPRINTF(("%s()\n", __FUNCTION__));
+
+	safestats.st_opackets++;
+	safestats.st_obytes += re->re_dst.mapsize;
+
+	if (re->re_desc.d_csr & SAFE_PE_CSR_STATUS) {
+		device_printf(sc->sc_dev, "csr 0x%x cmd0 0x%x cmd1 0x%x\n",
+			re->re_desc.d_csr,
+			re->re_sa.sa_cmd0, re->re_sa.sa_cmd1);
+		safestats.st_peoperr++;
+		crp->crp_etype = EIO;		/* something more meaningful? */
+	}
+
+	if (re->re_dst.map != NULL && re->re_dst.map != re->re_src.map)
+		pci_unmap_operand(sc, &re->re_dst);
+	pci_unmap_operand(sc, &re->re_src);
+
+	/* 
+	 * If result was written to a differet mbuf chain, swap
+	 * it in as the return value and reclaim the original.
+	 */
+	if ((crp->crp_flags & CRYPTO_F_SKBUF) && re->re_src_skb != re->re_dst_skb) {
+		device_printf(sc->sc_dev, "no CRYPTO_F_SKBUF swapping support\n");
+		/* kfree_skb(skb) */
+		/* crp->crp_buf = (caddr_t)re->re_dst_skb */
+		return;
+	}
+
+	if (re->re_flags & SAFE_QFLAGS_COPYOUTIV) {
+		/* copy out IV for future use */
+		for (crd = crp->crp_desc; crd; crd = crd->crd_next) {
+			int i;
+			int ivsize;
+
+			if (crd->crd_alg == CRYPTO_DES_CBC ||
+			    crd->crd_alg == CRYPTO_3DES_CBC) {
+				ivsize = 2*sizeof(u_int32_t);
+			} else if (crd->crd_alg == CRYPTO_AES_CBC) {
+				ivsize = 4*sizeof(u_int32_t);
+			} else
+				continue;
+			crypto_copydata(crp->crp_flags, crp->crp_buf,
+			    crd->crd_skip + crd->crd_len - ivsize, ivsize,
+			    (caddr_t)sc->sc_sessions[re->re_sesn].ses_iv);
+			for (i = 0;
+					i < ivsize/sizeof(sc->sc_sessions[re->re_sesn].ses_iv[0]);
+					i++)
+				sc->sc_sessions[re->re_sesn].ses_iv[i] =
+					cpu_to_le32(sc->sc_sessions[re->re_sesn].ses_iv[i]);
+			break;
+		}
+	}
+
+	if (re->re_flags & SAFE_QFLAGS_COPYOUTICV) {
+		/* copy out ICV result */
+		for (crd = crp->crp_desc; crd; crd = crd->crd_next) {
+			if (!(crd->crd_alg == CRYPTO_MD5_HMAC ||
+			    crd->crd_alg == CRYPTO_SHA1_HMAC ||
+			    crd->crd_alg == CRYPTO_NULL_HMAC))
+				continue;
+			if (crd->crd_alg == CRYPTO_SHA1_HMAC) {
+				/*
+				 * SHA-1 ICV's are byte-swapped; fix 'em up
+				 * before copy them to their destination.
+				 */
+				re->re_sastate.sa_saved_indigest[0] =
+					cpu_to_be32(re->re_sastate.sa_saved_indigest[0]);
+				re->re_sastate.sa_saved_indigest[1] = 
+					cpu_to_be32(re->re_sastate.sa_saved_indigest[1]);
+				re->re_sastate.sa_saved_indigest[2] =
+					cpu_to_be32(re->re_sastate.sa_saved_indigest[2]);
+			} else {
+				re->re_sastate.sa_saved_indigest[0] =
+					cpu_to_le32(re->re_sastate.sa_saved_indigest[0]);
+				re->re_sastate.sa_saved_indigest[1] = 
+					cpu_to_le32(re->re_sastate.sa_saved_indigest[1]);
+				re->re_sastate.sa_saved_indigest[2] =
+					cpu_to_le32(re->re_sastate.sa_saved_indigest[2]);
+			}
+			crypto_copyback(crp->crp_flags, crp->crp_buf,
+			    crd->crd_inject,
+			    sc->sc_sessions[re->re_sesn].ses_mlen,
+			    (caddr_t)re->re_sastate.sa_saved_indigest);
+			break;
+		}
+	}
+	crypto_done(crp);
+}
+
+
+#if defined(CONFIG_OCF_RANDOMHARVEST) && !defined(SAFE_NO_RNG)
+#define	SAFE_RNG_MAXWAIT	1000
+
+static void
+safe_rng_init(struct safe_softc *sc)
+{
+	u_int32_t w, v;
+	int i;
+
+	DPRINTF(("%s()\n", __FUNCTION__));
+
+	WRITE_REG(sc, SAFE_RNG_CTRL, 0);
+	/* use default value according to the manual */
+	WRITE_REG(sc, SAFE_RNG_CNFG, 0x834);	/* magic from SafeNet */
+	WRITE_REG(sc, SAFE_RNG_ALM_CNT, 0);
+
+	/*
+	 * There is a bug in rev 1.0 of the 1140 that when the RNG
+	 * is brought out of reset the ready status flag does not
+	 * work until the RNG has finished its internal initialization.
+	 *
+	 * So in order to determine the device is through its
+	 * initialization we must read the data register, using the
+	 * status reg in the read in case it is initialized.  Then read
+	 * the data register until it changes from the first read.
+	 * Once it changes read the data register until it changes
+	 * again.  At this time the RNG is considered initialized. 
+	 * This could take between 750ms - 1000ms in time.
+	 */
+	i = 0;
+	w = READ_REG(sc, SAFE_RNG_OUT);
+	do {
+		v = READ_REG(sc, SAFE_RNG_OUT);
+		if (v != w) {
+			w = v;
+			break;
+		}
+		DELAY(10);
+	} while (++i < SAFE_RNG_MAXWAIT);
+
+	/* Wait Until data changes again */
+	i = 0;
+	do {
+		v = READ_REG(sc, SAFE_RNG_OUT);
+		if (v != w)
+			break;
+		DELAY(10);
+	} while (++i < SAFE_RNG_MAXWAIT);
+}
+
+static __inline void
+safe_rng_disable_short_cycle(struct safe_softc *sc)
+{
+	DPRINTF(("%s()\n", __FUNCTION__));
+
+	WRITE_REG(sc, SAFE_RNG_CTRL,
+		READ_REG(sc, SAFE_RNG_CTRL) &~ SAFE_RNG_CTRL_SHORTEN);
+}
+
+static __inline void
+safe_rng_enable_short_cycle(struct safe_softc *sc)
+{
+	DPRINTF(("%s()\n", __FUNCTION__));
+
+	WRITE_REG(sc, SAFE_RNG_CTRL, 
+		READ_REG(sc, SAFE_RNG_CTRL) | SAFE_RNG_CTRL_SHORTEN);
+}
+
+static __inline u_int32_t
+safe_rng_read(struct safe_softc *sc)
+{
+	int i;
+
+	i = 0;
+	while (READ_REG(sc, SAFE_RNG_STAT) != 0 && ++i < SAFE_RNG_MAXWAIT)
+		;
+	return READ_REG(sc, SAFE_RNG_OUT);
+}
+
+static int
+safe_read_random(void *arg, u_int32_t *buf, int maxwords)
+{
+	struct safe_softc *sc = (struct safe_softc *) arg;
+	int i, rc;
+
+	DPRINTF(("%s()\n", __FUNCTION__));
+	
+	safestats.st_rng++;
+	/*
+	 * Fetch the next block of data.
+	 */
+	if (maxwords > safe_rngbufsize)
+		maxwords = safe_rngbufsize;
+	if (maxwords > SAFE_RNG_MAXBUFSIZ)
+		maxwords = SAFE_RNG_MAXBUFSIZ;
+retry:
+	/* read as much as we can */
+	for (rc = 0; rc < maxwords; rc++) {
+		if (READ_REG(sc, SAFE_RNG_STAT) != 0)
+			break;
+		buf[rc] = READ_REG(sc, SAFE_RNG_OUT);
+	}
+	if (rc == 0)
+		return 0;
+	/*
+	 * Check the comparator alarm count and reset the h/w if
+	 * it exceeds our threshold.  This guards against the
+	 * hardware oscillators resonating with external signals.
+	 */
+	if (READ_REG(sc, SAFE_RNG_ALM_CNT) > safe_rngmaxalarm) {
+		u_int32_t freq_inc, w;
+
+		DPRINTF(("%s: alarm count %u exceeds threshold %u\n", __func__,
+			(unsigned)READ_REG(sc, SAFE_RNG_ALM_CNT), safe_rngmaxalarm));
+		safestats.st_rngalarm++;
+		safe_rng_enable_short_cycle(sc);
+		freq_inc = 18;
+		for (i = 0; i < 64; i++) {
+			w = READ_REG(sc, SAFE_RNG_CNFG);
+			freq_inc = ((w + freq_inc) & 0x3fL);
+			w = ((w & ~0x3fL) | freq_inc);
+			WRITE_REG(sc, SAFE_RNG_CNFG, w);
+
+			WRITE_REG(sc, SAFE_RNG_ALM_CNT, 0);
+
+			(void) safe_rng_read(sc);
+			DELAY(25);
+
+			if (READ_REG(sc, SAFE_RNG_ALM_CNT) == 0) {
+				safe_rng_disable_short_cycle(sc);
+				goto retry;
+			}
+			freq_inc = 1;
+		}
+		safe_rng_disable_short_cycle(sc);
+	} else
+		WRITE_REG(sc, SAFE_RNG_ALM_CNT, 0);
+
+	return(rc);
+}
+#endif /* defined(CONFIG_OCF_RANDOMHARVEST) && !defined(SAFE_NO_RNG) */
+
+
+/*
+ * Resets the board.  Values in the regesters are left as is
+ * from the reset (i.e. initial values are assigned elsewhere).
+ */
+static void
+safe_reset_board(struct safe_softc *sc)
+{
+	u_int32_t v;
+	/*
+	 * Reset the device.  The manual says no delay
+	 * is needed between marking and clearing reset.
+	 */
+	DPRINTF(("%s()\n", __FUNCTION__));
+
+	v = READ_REG(sc, SAFE_PE_DMACFG) &~
+		(SAFE_PE_DMACFG_PERESET | SAFE_PE_DMACFG_PDRRESET |
+		 SAFE_PE_DMACFG_SGRESET);
+	WRITE_REG(sc, SAFE_PE_DMACFG, v
+				    | SAFE_PE_DMACFG_PERESET
+				    | SAFE_PE_DMACFG_PDRRESET
+				    | SAFE_PE_DMACFG_SGRESET);
+	WRITE_REG(sc, SAFE_PE_DMACFG, v);
+}
+
+/*
+ * Initialize registers we need to touch only once.
+ */
+static void
+safe_init_board(struct safe_softc *sc)
+{
+	u_int32_t v, dwords;
+
+	DPRINTF(("%s()\n", __FUNCTION__));
+
+	v = READ_REG(sc, SAFE_PE_DMACFG);
+	v &=~ (   SAFE_PE_DMACFG_PEMODE
+			| SAFE_PE_DMACFG_FSENA		/* failsafe enable */
+			| SAFE_PE_DMACFG_GPRPCI		/* gather ring on PCI */
+			| SAFE_PE_DMACFG_SPRPCI		/* scatter ring on PCI */
+			| SAFE_PE_DMACFG_ESDESC		/* endian-swap descriptors */
+			| SAFE_PE_DMACFG_ESPDESC	/* endian-swap part. desc's */
+			| SAFE_PE_DMACFG_ESSA		/* endian-swap SA's */
+			| SAFE_PE_DMACFG_ESPACKET	/* swap the packet data */
+		  );
+	v |= SAFE_PE_DMACFG_FSENA		/* failsafe enable */
+	  |  SAFE_PE_DMACFG_GPRPCI		/* gather ring on PCI */
+	  |  SAFE_PE_DMACFG_SPRPCI		/* scatter ring on PCI */
+	  |  SAFE_PE_DMACFG_ESDESC		/* endian-swap descriptors */
+	  |  SAFE_PE_DMACFG_ESPDESC		/* endian-swap part. desc's */
+	  |  SAFE_PE_DMACFG_ESSA		/* endian-swap SA's */
+#if 0
+	  |  SAFE_PE_DMACFG_ESPACKET    /* swap the packet data */
+#endif
+	  ;
+	WRITE_REG(sc, SAFE_PE_DMACFG, v);
+
+#ifdef __BIG_ENDIAN
+	/* tell the safenet that we are 4321 and not 1234 */
+	WRITE_REG(sc, SAFE_ENDIAN, 0xe4e41b1b);
+#endif
+
+	if (sc->sc_chiprev == SAFE_REV(1,0)) {
+		/*
+		 * Avoid large PCI DMA transfers.  Rev 1.0 has a bug where
+		 * "target mode transfers" done while the chip is DMA'ing
+		 * >1020 bytes cause the hardware to lockup.  To avoid this
+		 * we reduce the max PCI transfer size and use small source
+		 * particle descriptors (<= 256 bytes).
+		 */
+		WRITE_REG(sc, SAFE_DMA_CFG, 256);
+		device_printf(sc->sc_dev,
+			"Reduce max DMA size to %u words for rev %u.%u WAR\n",
+			(unsigned) ((READ_REG(sc, SAFE_DMA_CFG)>>2) & 0xff),
+			(unsigned) SAFE_REV_MAJ(sc->sc_chiprev),
+			(unsigned) SAFE_REV_MIN(sc->sc_chiprev));
+		sc->sc_max_dsize = 256;
+	} else {
+		sc->sc_max_dsize = SAFE_MAX_DSIZE;
+	}
+
+	/* NB: operands+results are overlaid */
+	WRITE_REG(sc, SAFE_PE_PDRBASE, sc->sc_ringalloc.dma_paddr);
+	WRITE_REG(sc, SAFE_PE_RDRBASE, sc->sc_ringalloc.dma_paddr);
+	/*
+	 * Configure ring entry size and number of items in the ring.
+	 */
+	KASSERT((sizeof(struct safe_ringentry) % sizeof(u_int32_t)) == 0,
+		("PE ring entry not 32-bit aligned!"));
+	dwords = sizeof(struct safe_ringentry) / sizeof(u_int32_t);
+	WRITE_REG(sc, SAFE_PE_RINGCFG,
+		(dwords << SAFE_PE_RINGCFG_OFFSET_S) | SAFE_MAX_NQUEUE);
+	WRITE_REG(sc, SAFE_PE_RINGPOLL, 0);	/* disable polling */
+
+	WRITE_REG(sc, SAFE_PE_GRNGBASE, sc->sc_spalloc.dma_paddr);
+	WRITE_REG(sc, SAFE_PE_SRNGBASE, sc->sc_dpalloc.dma_paddr);
+	WRITE_REG(sc, SAFE_PE_PARTSIZE,
+		(SAFE_TOTAL_DPART<<16) | SAFE_TOTAL_SPART);
+	/*
+	 * NB: destination particles are fixed size.  We use
+	 *     an mbuf cluster and require all results go to
+	 *     clusters or smaller.
+	 */
+	WRITE_REG(sc, SAFE_PE_PARTCFG, sc->sc_max_dsize);
+
+	/* it's now safe to enable PE mode, do it */
+	WRITE_REG(sc, SAFE_PE_DMACFG, v | SAFE_PE_DMACFG_PEMODE);
+
+	/*
+	 * Configure hardware to use level-triggered interrupts and
+	 * to interrupt after each descriptor is processed.
+	 */
+	WRITE_REG(sc, SAFE_HI_CFG, SAFE_HI_CFG_LEVEL);
+	WRITE_REG(sc, SAFE_HI_CLR, 0xffffffff);
+	WRITE_REG(sc, SAFE_HI_DESC_CNT, 1);
+	WRITE_REG(sc, SAFE_HI_MASK, SAFE_INT_PE_DDONE | SAFE_INT_PE_ERROR);
+}
+
+
+/*
+ * Clean up after a chip crash.
+ * It is assumed that the caller in splimp()
+ */
+static void
+safe_cleanchip(struct safe_softc *sc)
+{
+	DPRINTF(("%s()\n", __FUNCTION__));
+
+	if (sc->sc_nqchip != 0) {
+		struct safe_ringentry *re = sc->sc_back;
+
+		while (re != sc->sc_front) {
+			if (re->re_desc.d_csr != 0)
+				safe_free_entry(sc, re);
+			if (++re == sc->sc_ringtop)
+				re = sc->sc_ring;
+		}
+		sc->sc_back = re;
+		sc->sc_nqchip = 0;
+	}
+}
+
+/*
+ * free a safe_q
+ * It is assumed that the caller is within splimp().
+ */
+static int
+safe_free_entry(struct safe_softc *sc, struct safe_ringentry *re)
+{
+	struct cryptop *crp;
+
+	DPRINTF(("%s()\n", __FUNCTION__));
+
+	/*
+	 * Free header MCR
+	 */
+	if ((re->re_dst_skb != NULL) && (re->re_src_skb != re->re_dst_skb))
+#ifdef NOTYET
+		m_freem(re->re_dst_m);
+#else
+		printk("%s,%d: SKB not supported\n", __FILE__, __LINE__);
+#endif
+
+	crp = (struct cryptop *)re->re_crp;
+	
+	re->re_desc.d_csr = 0;
+	
+	crp->crp_etype = EFAULT;
+	crypto_done(crp);
+	return(0);
+}
+
+/*
+ * Routine to reset the chip and clean up.
+ * It is assumed that the caller is in splimp()
+ */
+static void
+safe_totalreset(struct safe_softc *sc)
+{
+	DPRINTF(("%s()\n", __FUNCTION__));
+
+	safe_reset_board(sc);
+	safe_init_board(sc);
+	safe_cleanchip(sc);
+}
+
+/*
+ * Is the operand suitable aligned for direct DMA.  Each
+ * segment must be aligned on a 32-bit boundary and all
+ * but the last segment must be a multiple of 4 bytes.
+ */
+static int
+safe_dmamap_aligned(struct safe_softc *sc, const struct safe_operand *op)
+{
+	int i;
+
+	DPRINTF(("%s()\n", __FUNCTION__));
+
+	for (i = 0; i < op->nsegs; i++) {
+		if (op->segs[i].ds_addr & 3)
+			return (0);
+		if (i != (op->nsegs - 1) && (op->segs[i].ds_len & 3))
+			return (0);
+	}
+	return (1);
+}
+
+/*
+ * Is the operand suitable for direct DMA as the destination
+ * of an operation.  The hardware requires that each ``particle''
+ * but the last in an operation result have the same size.  We
+ * fix that size at SAFE_MAX_DSIZE bytes.  This routine returns
+ * 0 if some segment is not a multiple of of this size, 1 if all
+ * segments are exactly this size, or 2 if segments are at worst
+ * a multple of this size.
+ */
+static int
+safe_dmamap_uniform(struct safe_softc *sc, const struct safe_operand *op)
+{
+	int result = 1;
+
+	DPRINTF(("%s()\n", __FUNCTION__));
+
+	if (op->nsegs > 0) {
+		int i;
+
+		for (i = 0; i < op->nsegs-1; i++) {
+			if (op->segs[i].ds_len % sc->sc_max_dsize)
+				return (0);
+			if (op->segs[i].ds_len != sc->sc_max_dsize)
+				result = 2;
+		}
+	}
+	return (result);
+}
+
+static int
+safe_kprocess(device_t dev, struct cryptkop *krp, int hint)
+{
+	struct safe_softc *sc = device_get_softc(dev);
+	struct safe_pkq *q;
+	unsigned long flags;
+
+	DPRINTF(("%s()\n", __FUNCTION__));
+
+	if (sc == NULL) {
+		krp->krp_status = EINVAL;
+		goto err;
+	}
+
+	if (krp->krp_op != CRK_MOD_EXP) {
+		krp->krp_status = EOPNOTSUPP;
+		goto err;
+	}
+
+	q = (struct safe_pkq *) kmalloc(sizeof(*q), GFP_KERNEL);
+	if (q == NULL) {
+		krp->krp_status = ENOMEM;
+		goto err;
+	}
+	memset(q, 0, sizeof(*q));
+	q->pkq_krp = krp;
+	INIT_LIST_HEAD(&q->pkq_list);
+
+	spin_lock_irqsave(&sc->sc_pkmtx, flags);
+	list_add_tail(&q->pkq_list, &sc->sc_pkq);
+	safe_kfeed(sc);
+	spin_unlock_irqrestore(&sc->sc_pkmtx, flags);
+	return (0);
+
+err:
+	crypto_kdone(krp);
+	return (0);
+}
+
+#define	SAFE_CRK_PARAM_BASE	0
+#define	SAFE_CRK_PARAM_EXP	1
+#define	SAFE_CRK_PARAM_MOD	2
+
+static int
+safe_kstart(struct safe_softc *sc)
+{
+	struct cryptkop *krp = sc->sc_pkq_cur->pkq_krp;
+	int exp_bits, mod_bits, base_bits;
+	u_int32_t op, a_off, b_off, c_off, d_off;
+
+	DPRINTF(("%s()\n", __FUNCTION__));
+
+	if (krp->krp_iparams < 3 || krp->krp_oparams != 1) {
+		krp->krp_status = EINVAL;
+		return (1);
+	}
+
+	base_bits = safe_ksigbits(sc, &krp->krp_param[SAFE_CRK_PARAM_BASE]);
+	if (base_bits > 2048)
+		goto too_big;
+	if (base_bits <= 0)		/* 5. base not zero */
+		goto too_small;
+
+	exp_bits = safe_ksigbits(sc, &krp->krp_param[SAFE_CRK_PARAM_EXP]);
+	if (exp_bits > 2048)
+		goto too_big;
+	if (exp_bits <= 0)		/* 1. exponent word length > 0 */
+		goto too_small;		/* 4. exponent not zero */
+
+	mod_bits = safe_ksigbits(sc, &krp->krp_param[SAFE_CRK_PARAM_MOD]);
+	if (mod_bits > 2048)
+		goto too_big;
+	if (mod_bits <= 32)		/* 2. modulus word length > 1 */
+		goto too_small;		/* 8. MSW of modulus != zero */
+	if (mod_bits < exp_bits)	/* 3 modulus len >= exponent len */
+		goto too_small;
+	if ((krp->krp_param[SAFE_CRK_PARAM_MOD].crp_p[0] & 1) == 0)
+		goto bad_domain;	/* 6. modulus is odd */
+	if (mod_bits > krp->krp_param[krp->krp_iparams].crp_nbits)
+		goto too_small;		/* make sure result will fit */
+
+	/* 7. modulus > base */
+	if (mod_bits < base_bits)
+		goto too_small;
+	if (mod_bits == base_bits) {
+		u_int8_t *basep, *modp;
+		int i;
+
+		basep = krp->krp_param[SAFE_CRK_PARAM_BASE].crp_p +
+		    ((base_bits + 7) / 8) - 1;
+		modp = krp->krp_param[SAFE_CRK_PARAM_MOD].crp_p +
+		    ((mod_bits + 7) / 8) - 1;
+		
+		for (i = 0; i < (mod_bits + 7) / 8; i++, basep--, modp--) {
+			if (*modp < *basep)
+				goto too_small;
+			if (*modp > *basep)
+				break;
+		}
+	}
+
+	/* And on the 9th step, he rested. */
+
+	WRITE_REG(sc, SAFE_PK_A_LEN, (exp_bits + 31) / 32);
+	WRITE_REG(sc, SAFE_PK_B_LEN, (mod_bits + 31) / 32);
+	if (mod_bits > 1024) {
+		op = SAFE_PK_FUNC_EXP4;
+		a_off = 0x000;
+		b_off = 0x100;
+		c_off = 0x200;
+		d_off = 0x300;
+	} else {
+		op = SAFE_PK_FUNC_EXP16;
+		a_off = 0x000;
+		b_off = 0x080;
+		c_off = 0x100;
+		d_off = 0x180;
+	}
+	sc->sc_pk_reslen = b_off - a_off;
+	sc->sc_pk_resoff = d_off;
+
+	/* A is exponent, B is modulus, C is base, D is result */
+	safe_kload_reg(sc, a_off, b_off - a_off,
+	    &krp->krp_param[SAFE_CRK_PARAM_EXP]);
+	WRITE_REG(sc, SAFE_PK_A_ADDR, a_off >> 2);
+	safe_kload_reg(sc, b_off, b_off - a_off,
+	    &krp->krp_param[SAFE_CRK_PARAM_MOD]);
+	WRITE_REG(sc, SAFE_PK_B_ADDR, b_off >> 2);
+	safe_kload_reg(sc, c_off, b_off - a_off,
+	    &krp->krp_param[SAFE_CRK_PARAM_BASE]);
+	WRITE_REG(sc, SAFE_PK_C_ADDR, c_off >> 2);
+	WRITE_REG(sc, SAFE_PK_D_ADDR, d_off >> 2);
+
+	WRITE_REG(sc, SAFE_PK_FUNC, op | SAFE_PK_FUNC_RUN);
+
+	return (0);
+
+too_big:
+	krp->krp_status = E2BIG;
+	return (1);
+too_small:
+	krp->krp_status = ERANGE;
+	return (1);
+bad_domain:
+	krp->krp_status = EDOM;
+	return (1);
+}
+
+static int
+safe_ksigbits(struct safe_softc *sc, struct crparam *cr)
+{
+	u_int plen = (cr->crp_nbits + 7) / 8;
+	int i, sig = plen * 8;
+	u_int8_t c, *p = cr->crp_p;
+
+	DPRINTF(("%s()\n", __FUNCTION__));
+
+	for (i = plen - 1; i >= 0; i--) {
+		c = p[i];
+		if (c != 0) {
+			while ((c & 0x80) == 0) {
+				sig--;
+				c <<= 1;
+			}
+			break;
+		}
+		sig -= 8;
+	}
+	return (sig);
+}
+
+static void
+safe_kfeed(struct safe_softc *sc)
+{
+	struct safe_pkq *q, *tmp;
+
+	DPRINTF(("%s()\n", __FUNCTION__));
+
+	if (list_empty(&sc->sc_pkq) && sc->sc_pkq_cur == NULL)
+		return;
+	if (sc->sc_pkq_cur != NULL)
+		return;
+	list_for_each_entry_safe(q, tmp, &sc->sc_pkq, pkq_list) {
+		sc->sc_pkq_cur = q;
+		list_del(&q->pkq_list);
+		if (safe_kstart(sc) != 0) {
+			crypto_kdone(q->pkq_krp);
+			kfree(q);
+			sc->sc_pkq_cur = NULL;
+		} else {
+			/* op started, start polling */
+			mod_timer(&sc->sc_pkto, jiffies + 1);
+			break;
+		}
+	}
+}
+
+static void
+safe_kpoll(unsigned long arg)
+{
+	struct safe_softc *sc = NULL;
+	struct safe_pkq *q;
+	struct crparam *res;
+	int i;
+	u_int32_t buf[64];
+	unsigned long flags;
+
+	DPRINTF(("%s()\n", __FUNCTION__));
+
+	if (arg >= SAFE_MAX_CHIPS)
+		return;
+	sc = safe_chip_idx[arg];
+	if (!sc) {
+		DPRINTF(("%s() - bad callback\n", __FUNCTION__));
+		return;
+	}
+
+	spin_lock_irqsave(&sc->sc_pkmtx, flags);
+	if (sc->sc_pkq_cur == NULL)
+		goto out;
+	if (READ_REG(sc, SAFE_PK_FUNC) & SAFE_PK_FUNC_RUN) {
+		/* still running, check back later */
+		mod_timer(&sc->sc_pkto, jiffies + 1);
+		goto out;
+	}
+
+	q = sc->sc_pkq_cur;
+	res = &q->pkq_krp->krp_param[q->pkq_krp->krp_iparams];
+	bzero(buf, sizeof(buf));
+	bzero(res->crp_p, (res->crp_nbits + 7) / 8);
+	for (i = 0; i < sc->sc_pk_reslen >> 2; i++)
+		buf[i] = le32_to_cpu(READ_REG(sc, SAFE_PK_RAM_START +
+		    sc->sc_pk_resoff + (i << 2)));
+	bcopy(buf, res->crp_p, (res->crp_nbits + 7) / 8);
+	/*
+	 * reduce the bits that need copying if possible
+	 */
+	res->crp_nbits = min(res->crp_nbits,sc->sc_pk_reslen * 8);
+	res->crp_nbits = safe_ksigbits(sc, res);
+
+	for (i = SAFE_PK_RAM_START; i < SAFE_PK_RAM_END; i += 4)
+		WRITE_REG(sc, i, 0);
+
+	crypto_kdone(q->pkq_krp);
+	kfree(q);
+	sc->sc_pkq_cur = NULL;
+
+	safe_kfeed(sc);
+out:
+	spin_unlock_irqrestore(&sc->sc_pkmtx, flags);
+}
+
+static void
+safe_kload_reg(struct safe_softc *sc, u_int32_t off, u_int32_t len,
+    struct crparam *n)
+{
+	u_int32_t buf[64], i;
+
+	DPRINTF(("%s()\n", __FUNCTION__));
+
+	bzero(buf, sizeof(buf));
+	bcopy(n->crp_p, buf, (n->crp_nbits + 7) / 8);
+
+	for (i = 0; i < len >> 2; i++)
+		WRITE_REG(sc, SAFE_PK_RAM_START + off + (i << 2),
+		    cpu_to_le32(buf[i]));
+}
+
+#ifdef SAFE_DEBUG
+static void
+safe_dump_dmastatus(struct safe_softc *sc, const char *tag)
+{
+	printf("%s: ENDIAN 0x%x SRC 0x%x DST 0x%x STAT 0x%x\n"
+		, tag
+		, READ_REG(sc, SAFE_DMA_ENDIAN)
+		, READ_REG(sc, SAFE_DMA_SRCADDR)
+		, READ_REG(sc, SAFE_DMA_DSTADDR)
+		, READ_REG(sc, SAFE_DMA_STAT)
+	);
+}
+
+static void
+safe_dump_intrstate(struct safe_softc *sc, const char *tag)
+{
+	printf("%s: HI_CFG 0x%x HI_MASK 0x%x HI_DESC_CNT 0x%x HU_STAT 0x%x HM_STAT 0x%x\n"
+		, tag
+		, READ_REG(sc, SAFE_HI_CFG)
+		, READ_REG(sc, SAFE_HI_MASK)
+		, READ_REG(sc, SAFE_HI_DESC_CNT)
+		, READ_REG(sc, SAFE_HU_STAT)
+		, READ_REG(sc, SAFE_HM_STAT)
+	);
+}
+
+static void
+safe_dump_ringstate(struct safe_softc *sc, const char *tag)
+{
+	u_int32_t estat = READ_REG(sc, SAFE_PE_ERNGSTAT);
+
+	/* NB: assume caller has lock on ring */
+	printf("%s: ERNGSTAT %x (next %u) back %lu front %lu\n",
+		tag,
+		estat, (estat >> SAFE_PE_ERNGSTAT_NEXT_S),
+		(unsigned long)(sc->sc_back - sc->sc_ring),
+		(unsigned long)(sc->sc_front - sc->sc_ring));
+}
+
+static void
+safe_dump_request(struct safe_softc *sc, const char* tag, struct safe_ringentry *re)
+{
+	int ix, nsegs;
+
+	ix = re - sc->sc_ring;
+	printf("%s: %p (%u): csr %x src %x dst %x sa %x len %x\n"
+		, tag
+		, re, ix
+		, re->re_desc.d_csr
+		, re->re_desc.d_src
+		, re->re_desc.d_dst
+		, re->re_desc.d_sa
+		, re->re_desc.d_len
+	);
+	if (re->re_src.nsegs > 1) {
+		ix = (re->re_desc.d_src - sc->sc_spalloc.dma_paddr) /
+			sizeof(struct safe_pdesc);
+		for (nsegs = re->re_src.nsegs; nsegs; nsegs--) {
+			printf(" spd[%u] %p: %p size %u flags %x"
+				, ix, &sc->sc_spring[ix]
+				, (caddr_t)(uintptr_t) sc->sc_spring[ix].pd_addr
+				, sc->sc_spring[ix].pd_size
+				, sc->sc_spring[ix].pd_flags
+			);
+			if (sc->sc_spring[ix].pd_size == 0)
+				printf(" (zero!)");
+			printf("\n");
+			if (++ix == SAFE_TOTAL_SPART)
+				ix = 0;
+		}
+	}
+	if (re->re_dst.nsegs > 1) {
+		ix = (re->re_desc.d_dst - sc->sc_dpalloc.dma_paddr) /
+			sizeof(struct safe_pdesc);
+		for (nsegs = re->re_dst.nsegs; nsegs; nsegs--) {
+			printf(" dpd[%u] %p: %p flags %x\n"
+				, ix, &sc->sc_dpring[ix]
+				, (caddr_t)(uintptr_t) sc->sc_dpring[ix].pd_addr
+				, sc->sc_dpring[ix].pd_flags
+			);
+			if (++ix == SAFE_TOTAL_DPART)
+				ix = 0;
+		}
+	}
+	printf("sa: cmd0 %08x cmd1 %08x staterec %x\n",
+		re->re_sa.sa_cmd0, re->re_sa.sa_cmd1, re->re_sa.sa_staterec);
+	printf("sa: key %x %x %x %x %x %x %x %x\n"
+		, re->re_sa.sa_key[0]
+		, re->re_sa.sa_key[1]
+		, re->re_sa.sa_key[2]
+		, re->re_sa.sa_key[3]
+		, re->re_sa.sa_key[4]
+		, re->re_sa.sa_key[5]
+		, re->re_sa.sa_key[6]
+		, re->re_sa.sa_key[7]
+	);
+	printf("sa: indigest %x %x %x %x %x\n"
+		, re->re_sa.sa_indigest[0]
+		, re->re_sa.sa_indigest[1]
+		, re->re_sa.sa_indigest[2]
+		, re->re_sa.sa_indigest[3]
+		, re->re_sa.sa_indigest[4]
+	);
+	printf("sa: outdigest %x %x %x %x %x\n"
+		, re->re_sa.sa_outdigest[0]
+		, re->re_sa.sa_outdigest[1]
+		, re->re_sa.sa_outdigest[2]
+		, re->re_sa.sa_outdigest[3]
+		, re->re_sa.sa_outdigest[4]
+	);
+	printf("sr: iv %x %x %x %x\n"
+		, re->re_sastate.sa_saved_iv[0]
+		, re->re_sastate.sa_saved_iv[1]
+		, re->re_sastate.sa_saved_iv[2]
+		, re->re_sastate.sa_saved_iv[3]
+	);
+	printf("sr: hashbc %u indigest %x %x %x %x %x\n"
+		, re->re_sastate.sa_saved_hashbc
+		, re->re_sastate.sa_saved_indigest[0]
+		, re->re_sastate.sa_saved_indigest[1]
+		, re->re_sastate.sa_saved_indigest[2]
+		, re->re_sastate.sa_saved_indigest[3]
+		, re->re_sastate.sa_saved_indigest[4]
+	);
+}
+
+static void
+safe_dump_ring(struct safe_softc *sc, const char *tag)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&sc->sc_ringmtx, flags);
+	printf("\nSafeNet Ring State:\n");
+	safe_dump_intrstate(sc, tag);
+	safe_dump_dmastatus(sc, tag);
+	safe_dump_ringstate(sc, tag);
+	if (sc->sc_nqchip) {
+		struct safe_ringentry *re = sc->sc_back;
+		do {
+			safe_dump_request(sc, tag, re);
+			if (++re == sc->sc_ringtop)
+				re = sc->sc_ring;
+		} while (re != sc->sc_front);
+	}
+	spin_unlock_irqrestore(&sc->sc_ringmtx, flags);
+}
+#endif /* SAFE_DEBUG */
+
+
+static int safe_probe(struct pci_dev *dev, const struct pci_device_id *ent)
+{
+	struct safe_softc *sc = NULL;
+	u32 mem_start, mem_len, cmd;
+	int i, rc, devinfo;
+	dma_addr_t raddr;
+	static int num_chips = 0;
+
+	DPRINTF(("%s()\n", __FUNCTION__));
+
+	if (pci_enable_device(dev) < 0)
+		return(-ENODEV);
+
+	if (!dev->irq) {
+		printk("safe: found device with no IRQ assigned. check BIOS settings!");
+		pci_disable_device(dev);
+		return(-ENODEV);
+	}
+
+	if (pci_set_mwi(dev)) {
+		printk("safe: pci_set_mwi failed!");
+		return(-ENODEV);
+	}
+
+	sc = (struct safe_softc *) kmalloc(sizeof(*sc), GFP_KERNEL);
+	if (!sc)
+		return(-ENOMEM);
+	memset(sc, 0, sizeof(*sc));
+
+	softc_device_init(sc, "safe", num_chips, safe_methods);
+
+	sc->sc_irq = -1;
+	sc->sc_cid = -1;
+	sc->sc_pcidev = dev;
+	if (num_chips < SAFE_MAX_CHIPS) {
+		safe_chip_idx[device_get_unit(sc->sc_dev)] = sc;
+		num_chips++;
+	}
+
+	INIT_LIST_HEAD(&sc->sc_pkq);
+	spin_lock_init(&sc->sc_pkmtx);
+
+	pci_set_drvdata(sc->sc_pcidev, sc);
+
+	/* we read its hardware registers as memory */
+	mem_start = pci_resource_start(sc->sc_pcidev, 0);
+	mem_len   = pci_resource_len(sc->sc_pcidev, 0);
+
+	sc->sc_base_addr = (ocf_iomem_t) ioremap(mem_start, mem_len);
+	if (!sc->sc_base_addr) {
+		device_printf(sc->sc_dev, "failed to ioremap 0x%x-0x%x\n",
+				mem_start, mem_start + mem_len - 1);
+		goto out;
+	}
+
+	/* fix up the bus size */
+	if (pci_set_dma_mask(sc->sc_pcidev, DMA_32BIT_MASK)) {
+		device_printf(sc->sc_dev, "No usable DMA configuration, aborting.\n");
+		goto out;
+	}
+	if (pci_set_consistent_dma_mask(sc->sc_pcidev, DMA_32BIT_MASK)) {
+		device_printf(sc->sc_dev, "No usable consistent DMA configuration, aborting.\n");
+		goto out;
+	}
+
+	pci_set_master(sc->sc_pcidev);
+
+	pci_read_config_dword(sc->sc_pcidev, PCI_COMMAND, &cmd);
+
+	if (!(cmd & PCI_COMMAND_MEMORY)) {
+		device_printf(sc->sc_dev, "failed to enable memory mapping\n");
+		goto out;
+	}
+
+	if (!(cmd & PCI_COMMAND_MASTER)) {
+		device_printf(sc->sc_dev, "failed to enable bus mastering\n");
+		goto out;
+	}
+
+	rc = request_irq(dev->irq, safe_intr, IRQF_SHARED, "safe", sc);
+	if (rc) {
+		device_printf(sc->sc_dev, "failed to hook irq %d\n", sc->sc_irq);
+		goto out;
+	}
+	sc->sc_irq = dev->irq;
+
+	sc->sc_chiprev = READ_REG(sc, SAFE_DEVINFO) &
+			(SAFE_DEVINFO_REV_MAJ | SAFE_DEVINFO_REV_MIN);
+
+	/*
+	 * Allocate packet engine descriptors.
+	 */
+	sc->sc_ringalloc.dma_vaddr = pci_alloc_consistent(sc->sc_pcidev,
+			SAFE_MAX_NQUEUE * sizeof (struct safe_ringentry),
+			&sc->sc_ringalloc.dma_paddr);
+	if (!sc->sc_ringalloc.dma_vaddr) {
+		device_printf(sc->sc_dev, "cannot allocate PE descriptor ring\n");
+		goto out;
+	}
+
+	/*
+	 * Hookup the static portion of all our data structures.
+	 */
+	sc->sc_ring = (struct safe_ringentry *) sc->sc_ringalloc.dma_vaddr;
+	sc->sc_ringtop = sc->sc_ring + SAFE_MAX_NQUEUE;
+	sc->sc_front = sc->sc_ring;
+	sc->sc_back = sc->sc_ring;
+	raddr = sc->sc_ringalloc.dma_paddr;
+	bzero(sc->sc_ring, SAFE_MAX_NQUEUE * sizeof(struct safe_ringentry));
+	for (i = 0; i < SAFE_MAX_NQUEUE; i++) {
+		struct safe_ringentry *re = &sc->sc_ring[i];
+
+		re->re_desc.d_sa = raddr +
+			offsetof(struct safe_ringentry, re_sa);
+		re->re_sa.sa_staterec = raddr +
+			offsetof(struct safe_ringentry, re_sastate);
+
+		raddr += sizeof (struct safe_ringentry);
+	}
+	spin_lock_init(&sc->sc_ringmtx);
+
+	/*
+	 * Allocate scatter and gather particle descriptors.
+	 */
+	sc->sc_spalloc.dma_vaddr = pci_alloc_consistent(sc->sc_pcidev,
+			SAFE_TOTAL_SPART * sizeof (struct safe_pdesc),
+			&sc->sc_spalloc.dma_paddr);
+	if (!sc->sc_spalloc.dma_vaddr) {
+		device_printf(sc->sc_dev, "cannot allocate source particle descriptor ring\n");
+		goto out;
+	}
+	sc->sc_spring = (struct safe_pdesc *) sc->sc_spalloc.dma_vaddr;
+	sc->sc_springtop = sc->sc_spring + SAFE_TOTAL_SPART;
+	sc->sc_spfree = sc->sc_spring;
+	bzero(sc->sc_spring, SAFE_TOTAL_SPART * sizeof(struct safe_pdesc));
+
+	sc->sc_dpalloc.dma_vaddr = pci_alloc_consistent(sc->sc_pcidev,
+			SAFE_TOTAL_DPART * sizeof (struct safe_pdesc),
+			&sc->sc_dpalloc.dma_paddr);
+	if (!sc->sc_dpalloc.dma_vaddr) {
+		device_printf(sc->sc_dev, "cannot allocate destination particle descriptor ring\n");
+		goto out;
+	}
+	sc->sc_dpring = (struct safe_pdesc *) sc->sc_dpalloc.dma_vaddr;
+	sc->sc_dpringtop = sc->sc_dpring + SAFE_TOTAL_DPART;
+	sc->sc_dpfree = sc->sc_dpring;
+	bzero(sc->sc_dpring, SAFE_TOTAL_DPART * sizeof(struct safe_pdesc));
+
+	sc->sc_cid = crypto_get_driverid(softc_get_device(sc), CRYPTOCAP_F_HARDWARE);
+	if (sc->sc_cid < 0) {
+		device_printf(sc->sc_dev, "could not get crypto driver id\n");
+		goto out;
+	}
+
+	printf("%s:", device_get_nameunit(sc->sc_dev));
+
+	devinfo = READ_REG(sc, SAFE_DEVINFO);
+	if (devinfo & SAFE_DEVINFO_RNG) {
+		sc->sc_flags |= SAFE_FLAGS_RNG;
+		printf(" rng");
+	}
+	if (devinfo & SAFE_DEVINFO_PKEY) {
+		printf(" key");
+		sc->sc_flags |= SAFE_FLAGS_KEY;
+		crypto_kregister(sc->sc_cid, CRK_MOD_EXP, 0);
+#if 0
+		crypto_kregister(sc->sc_cid, CRK_MOD_EXP_CRT, 0);
+#endif
+		init_timer(&sc->sc_pkto);
+		sc->sc_pkto.function = safe_kpoll;
+		sc->sc_pkto.data = (unsigned long) device_get_unit(sc->sc_dev);
+	}
+	if (devinfo & SAFE_DEVINFO_DES) {
+		printf(" des/3des");
+		crypto_register(sc->sc_cid, CRYPTO_3DES_CBC, 0, 0);
+		crypto_register(sc->sc_cid, CRYPTO_DES_CBC, 0, 0);
+	}
+	if (devinfo & SAFE_DEVINFO_AES) {
+		printf(" aes");
+		crypto_register(sc->sc_cid, CRYPTO_AES_CBC, 0, 0);
+	}
+	if (devinfo & SAFE_DEVINFO_MD5) {
+		printf(" md5");
+		crypto_register(sc->sc_cid, CRYPTO_MD5_HMAC, 0, 0);
+	}
+	if (devinfo & SAFE_DEVINFO_SHA1) {
+		printf(" sha1");
+		crypto_register(sc->sc_cid, CRYPTO_SHA1_HMAC, 0, 0);
+	}
+	printf(" null");
+	crypto_register(sc->sc_cid, CRYPTO_NULL_CBC, 0, 0);
+	crypto_register(sc->sc_cid, CRYPTO_NULL_HMAC, 0, 0);
+	/* XXX other supported algorithms */
+	printf("\n");
+
+	safe_reset_board(sc);		/* reset h/w */
+	safe_init_board(sc);		/* init h/w */
+
+#if defined(CONFIG_OCF_RANDOMHARVEST) && !defined(SAFE_NO_RNG)
+	if (sc->sc_flags & SAFE_FLAGS_RNG) {
+		safe_rng_init(sc);
+		crypto_rregister(sc->sc_cid, safe_read_random, sc);
+	}
+#endif /* SAFE_NO_RNG */
+
+	return (0);
+
+out:
+	if (sc->sc_cid >= 0)
+		crypto_unregister_all(sc->sc_cid);
+	if (sc->sc_irq != -1)
+		free_irq(sc->sc_irq, sc);
+	if (sc->sc_ringalloc.dma_vaddr)
+		pci_free_consistent(sc->sc_pcidev,
+				SAFE_MAX_NQUEUE * sizeof (struct safe_ringentry),
+				sc->sc_ringalloc.dma_vaddr, sc->sc_ringalloc.dma_paddr);
+	if (sc->sc_spalloc.dma_vaddr)
+		pci_free_consistent(sc->sc_pcidev,
+				SAFE_TOTAL_DPART * sizeof (struct safe_pdesc),
+				sc->sc_spalloc.dma_vaddr, sc->sc_spalloc.dma_paddr);
+	if (sc->sc_dpalloc.dma_vaddr)
+		pci_free_consistent(sc->sc_pcidev,
+				SAFE_TOTAL_DPART * sizeof (struct safe_pdesc),
+				sc->sc_dpalloc.dma_vaddr, sc->sc_dpalloc.dma_paddr);
+	kfree(sc);
+	return(-ENODEV);
+}
+
+static void safe_remove(struct pci_dev *dev)
+{
+	struct safe_softc *sc = pci_get_drvdata(dev);
+
+	DPRINTF(("%s()\n", __FUNCTION__));
+
+	/* XXX wait/abort active ops */
+
+	WRITE_REG(sc, SAFE_HI_MASK, 0);		/* disable interrupts */
+
+	del_timer_sync(&sc->sc_pkto);
+
+	crypto_unregister_all(sc->sc_cid);
+
+	safe_cleanchip(sc);
+
+	if (sc->sc_irq != -1)
+		free_irq(sc->sc_irq, sc);
+	if (sc->sc_ringalloc.dma_vaddr)
+		pci_free_consistent(sc->sc_pcidev,
+				SAFE_MAX_NQUEUE * sizeof (struct safe_ringentry),
+				sc->sc_ringalloc.dma_vaddr, sc->sc_ringalloc.dma_paddr);
+	if (sc->sc_spalloc.dma_vaddr)
+		pci_free_consistent(sc->sc_pcidev,
+				SAFE_TOTAL_DPART * sizeof (struct safe_pdesc),
+				sc->sc_spalloc.dma_vaddr, sc->sc_spalloc.dma_paddr);
+	if (sc->sc_dpalloc.dma_vaddr)
+		pci_free_consistent(sc->sc_pcidev,
+				SAFE_TOTAL_DPART * sizeof (struct safe_pdesc),
+				sc->sc_dpalloc.dma_vaddr, sc->sc_dpalloc.dma_paddr);
+	sc->sc_irq = -1;
+	sc->sc_ringalloc.dma_vaddr = NULL;
+	sc->sc_spalloc.dma_vaddr = NULL;
+	sc->sc_dpalloc.dma_vaddr = NULL;
+}
+
+static struct pci_device_id safe_pci_tbl[] = {
+	{ PCI_VENDOR_SAFENET, PCI_PRODUCT_SAFEXCEL,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
+	{ },
+};
+MODULE_DEVICE_TABLE(pci, safe_pci_tbl);
+
+static struct pci_driver safe_driver = {
+	.name         = "safe",
+	.id_table     = safe_pci_tbl,
+	.probe        =	safe_probe,
+	.remove       = safe_remove,
+	/* add PM stuff here one day */
+};
+
+static int __init safe_init (void)
+{
+	struct safe_softc *sc = NULL;
+	int rc;
+
+	DPRINTF(("%s(%p)\n", __FUNCTION__, safe_init));
+
+	rc = pci_register_driver(&safe_driver);
+	pci_register_driver_compat(&safe_driver, rc);
+
+	return rc;
+}
+
+static void __exit safe_exit (void)
+{
+	pci_unregister_driver(&safe_driver);
+}
+
+module_init(safe_init);
+module_exit(safe_exit);
+
+MODULE_LICENSE("BSD");
+MODULE_AUTHOR("David McCullough <david_mccullough@securecomputing.com>");
+MODULE_DESCRIPTION("OCF driver for safenet PCI crypto devices");
diff -Nur linux-2.6.29.1.orig/crypto/ocf/safe/safereg.h linux-2.6.29.1/crypto/ocf/safe/safereg.h
--- linux-2.6.29.1.orig/crypto/ocf/safe/safereg.h	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/safe/safereg.h	2009-04-20 20:01:21.624562844 +0200
@@ -0,0 +1,421 @@
+/*-
+ * Copyright (c) 2003 Sam Leffler, Errno Consulting
+ * Copyright (c) 2003 Global Technology Associates, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD: src/sys/dev/safe/safereg.h,v 1.1 2003/07/21 21:46:07 sam Exp $
+ */
+#ifndef _SAFE_SAFEREG_H_
+#define	_SAFE_SAFEREG_H_
+
+/*
+ * Register definitions for SafeNet SafeXcel-1141 crypto device.
+ * Definitions from revision 1.3 (Nov 6 2002) of the User's Manual.
+ */
+
+#define BS_BAR			0x10	/* DMA base address register */
+#define	BS_TRDY_TIMEOUT		0x40	/* TRDY timeout */
+#define	BS_RETRY_TIMEOUT	0x41	/* DMA retry timeout */
+
+#define	PCI_VENDOR_SAFENET	0x16ae		/* SafeNet, Inc. */
+
+/* SafeNet */
+#define	PCI_PRODUCT_SAFEXCEL	0x1141		/* 1141 */
+
+#define	SAFE_PE_CSR		0x0000	/* Packet Enginge Ctrl/Status */
+#define	SAFE_PE_SRC		0x0004	/* Packet Engine Source */
+#define	SAFE_PE_DST		0x0008	/* Packet Engine Destination */
+#define	SAFE_PE_SA		0x000c	/* Packet Engine SA */
+#define	SAFE_PE_LEN		0x0010	/* Packet Engine Length */
+#define	SAFE_PE_DMACFG		0x0040	/* Packet Engine DMA Configuration */
+#define	SAFE_PE_DMASTAT		0x0044	/* Packet Engine DMA Status */
+#define	SAFE_PE_PDRBASE		0x0048	/* Packet Engine Descriptor Ring Base */
+#define	SAFE_PE_RDRBASE		0x004c	/* Packet Engine Result Ring Base */
+#define	SAFE_PE_RINGCFG		0x0050	/* Packet Engine Ring Configuration */
+#define	SAFE_PE_RINGPOLL	0x0054	/* Packet Engine Ring Poll */
+#define	SAFE_PE_IRNGSTAT	0x0058	/* Packet Engine Internal Ring Status */
+#define	SAFE_PE_ERNGSTAT	0x005c	/* Packet Engine External Ring Status */
+#define	SAFE_PE_IOTHRESH	0x0060	/* Packet Engine I/O Threshold */
+#define	SAFE_PE_GRNGBASE	0x0064	/* Packet Engine Gather Ring Base */
+#define	SAFE_PE_SRNGBASE	0x0068	/* Packet Engine Scatter Ring Base */
+#define	SAFE_PE_PARTSIZE	0x006c	/* Packet Engine Particlar Ring Size */
+#define	SAFE_PE_PARTCFG		0x0070	/* Packet Engine Particle Ring Config */
+#define	SAFE_CRYPTO_CTRL	0x0080	/* Crypto Control */
+#define	SAFE_DEVID		0x0084	/* Device ID */
+#define	SAFE_DEVINFO		0x0088	/* Device Info */
+#define	SAFE_HU_STAT		0x00a0	/* Host Unmasked Status */
+#define	SAFE_HM_STAT		0x00a4	/* Host Masked Status (read-only) */
+#define	SAFE_HI_CLR		0x00a4	/* Host Clear Interrupt (write-only) */
+#define	SAFE_HI_MASK		0x00a8	/* Host Mask Control */
+#define	SAFE_HI_CFG		0x00ac	/* Interrupt Configuration */
+#define	SAFE_HI_RD_DESCR	0x00b4	/* Force Descriptor Read */
+#define	SAFE_HI_DESC_CNT	0x00b8	/* Host Descriptor Done Count */
+#define	SAFE_DMA_ENDIAN		0x00c0	/* Master Endian Status */
+#define	SAFE_DMA_SRCADDR	0x00c4	/* DMA Source Address Status */
+#define	SAFE_DMA_DSTADDR	0x00c8	/* DMA Destination Address Status */
+#define	SAFE_DMA_STAT		0x00cc	/* DMA Current Status */
+#define	SAFE_DMA_CFG		0x00d4	/* DMA Configuration/Status */
+#define	SAFE_ENDIAN		0x00e0	/* Endian Configuration */
+#define	SAFE_PK_A_ADDR		0x0800	/* Public Key A Address */
+#define	SAFE_PK_B_ADDR		0x0804	/* Public Key B Address */
+#define	SAFE_PK_C_ADDR		0x0808	/* Public Key C Address */
+#define	SAFE_PK_D_ADDR		0x080c	/* Public Key D Address */
+#define	SAFE_PK_A_LEN		0x0810	/* Public Key A Length */
+#define	SAFE_PK_B_LEN		0x0814	/* Public Key B Length */
+#define	SAFE_PK_SHIFT		0x0818	/* Public Key Shift */
+#define	SAFE_PK_FUNC		0x081c	/* Public Key Function */
+#define SAFE_PK_RAM_START	0x1000	/* Public Key RAM start address */
+#define SAFE_PK_RAM_END		0x1fff	/* Public Key RAM end address */
+
+#define	SAFE_RNG_OUT		0x0100	/* RNG Output */
+#define	SAFE_RNG_STAT		0x0104	/* RNG Status */
+#define	SAFE_RNG_CTRL		0x0108	/* RNG Control */
+#define	SAFE_RNG_A		0x010c	/* RNG A */
+#define	SAFE_RNG_B		0x0110	/* RNG B */
+#define	SAFE_RNG_X_LO		0x0114	/* RNG X [31:0] */
+#define	SAFE_RNG_X_MID		0x0118	/* RNG X [63:32] */
+#define	SAFE_RNG_X_HI		0x011c	/* RNG X [80:64] */
+#define	SAFE_RNG_X_CNTR		0x0120	/* RNG Counter */
+#define	SAFE_RNG_ALM_CNT	0x0124	/* RNG Alarm Count */
+#define	SAFE_RNG_CNFG		0x0128	/* RNG Configuration */
+#define	SAFE_RNG_LFSR1_LO	0x012c	/* RNG LFSR1 [31:0] */
+#define	SAFE_RNG_LFSR1_HI	0x0130	/* RNG LFSR1 [47:32] */
+#define	SAFE_RNG_LFSR2_LO	0x0134	/* RNG LFSR1 [31:0] */
+#define	SAFE_RNG_LFSR2_HI	0x0138	/* RNG LFSR1 [47:32] */
+
+#define	SAFE_PE_CSR_READY	0x00000001	/* ready for processing */
+#define	SAFE_PE_CSR_DONE	0x00000002	/* h/w completed processing */
+#define	SAFE_PE_CSR_LOADSA	0x00000004	/* load SA digests */
+#define	SAFE_PE_CSR_HASHFINAL	0x00000010	/* do hash pad & write result */
+#define	SAFE_PE_CSR_SABUSID	0x000000c0	/* bus id for SA */
+#define	SAFE_PE_CSR_SAPCI	0x00000040	/* PCI bus id for SA */
+#define	SAFE_PE_CSR_NXTHDR	0x0000ff00	/* next hdr value for IPsec */
+#define	SAFE_PE_CSR_FPAD	0x0000ff00	/* fixed pad for basic ops */
+#define	SAFE_PE_CSR_STATUS	0x00ff0000	/* operation result status */
+#define	SAFE_PE_CSR_AUTH_FAIL	0x00010000	/* ICV mismatch (inbound) */
+#define	SAFE_PE_CSR_PAD_FAIL	0x00020000	/* pad verify fail (inbound) */
+#define	SAFE_PE_CSR_SEQ_FAIL	0x00040000	/* sequence number (inbound) */
+#define	SAFE_PE_CSR_XERROR	0x00080000	/* extended error follows */
+#define	SAFE_PE_CSR_XECODE	0x00f00000	/* extended error code */
+#define	SAFE_PE_CSR_XECODE_S	20
+#define	SAFE_PE_CSR_XECODE_BADCMD	0	/* invalid command */
+#define	SAFE_PE_CSR_XECODE_BADALG	1	/* invalid algorithm */
+#define	SAFE_PE_CSR_XECODE_ALGDIS	2	/* algorithm disabled */
+#define	SAFE_PE_CSR_XECODE_ZEROLEN	3	/* zero packet length */
+#define	SAFE_PE_CSR_XECODE_DMAERR	4	/* bus DMA error */
+#define	SAFE_PE_CSR_XECODE_PIPEABORT	5	/* secondary bus DMA error */
+#define	SAFE_PE_CSR_XECODE_BADSPI	6	/* IPsec SPI mismatch */
+#define	SAFE_PE_CSR_XECODE_TIMEOUT	10	/* failsafe timeout */
+#define	SAFE_PE_CSR_PAD		0xff000000	/* ESP padding control/status */
+#define	SAFE_PE_CSR_PAD_MIN	0x00000000	/* minimum IPsec padding */
+#define	SAFE_PE_CSR_PAD_16	0x08000000	/* pad to 16-byte boundary */
+#define	SAFE_PE_CSR_PAD_32	0x10000000	/* pad to 32-byte boundary */
+#define	SAFE_PE_CSR_PAD_64	0x20000000	/* pad to 64-byte boundary */
+#define	SAFE_PE_CSR_PAD_128	0x40000000	/* pad to 128-byte boundary */
+#define	SAFE_PE_CSR_PAD_256	0x80000000	/* pad to 256-byte boundary */
+
+/*
+ * Check the CSR to see if the PE has returned ownership to
+ * the host.  Note that before processing a descriptor this
+ * must be done followed by a check of the SAFE_PE_LEN register
+ * status bits to avoid premature processing of a descriptor
+ * on its way back to the host.
+ */
+#define	SAFE_PE_CSR_IS_DONE(_csr) \
+    (((_csr) & (SAFE_PE_CSR_READY | SAFE_PE_CSR_DONE)) == SAFE_PE_CSR_DONE)
+
+#define	SAFE_PE_LEN_LENGTH	0x000fffff	/* total length (bytes) */
+#define	SAFE_PE_LEN_READY	0x00400000	/* ready for processing */
+#define	SAFE_PE_LEN_DONE	0x00800000	/* h/w completed processing */
+#define	SAFE_PE_LEN_BYPASS	0xff000000	/* bypass offset (bytes) */
+#define	SAFE_PE_LEN_BYPASS_S	24
+
+#define	SAFE_PE_LEN_IS_DONE(_len) \
+    (((_len) & (SAFE_PE_LEN_READY | SAFE_PE_LEN_DONE)) == SAFE_PE_LEN_DONE)
+
+/* NB: these apply to HU_STAT, HM_STAT, HI_CLR, and HI_MASK */
+#define	SAFE_INT_PE_CDONE	0x00000002	/* PE context done */
+#define	SAFE_INT_PE_DDONE	0x00000008	/* PE descriptor done */
+#define	SAFE_INT_PE_ERROR	0x00000010	/* PE error */
+#define	SAFE_INT_PE_ODONE	0x00000020	/* PE operation done */
+
+#define	SAFE_HI_CFG_PULSE	0x00000001	/* use pulse interrupt */
+#define	SAFE_HI_CFG_LEVEL	0x00000000	/* use level interrupt */
+#define	SAFE_HI_CFG_AUTOCLR	0x00000002	/* auto-clear pulse interrupt */
+
+#define	SAFE_ENDIAN_PASS	0x000000e4	/* straight pass-thru */
+#define	SAFE_ENDIAN_SWAB	0x0000001b	/* swap bytes in 32-bit word */
+
+#define	SAFE_PE_DMACFG_PERESET	0x00000001	/* reset packet engine */
+#define	SAFE_PE_DMACFG_PDRRESET	0x00000002	/* reset PDR counters/ptrs */
+#define	SAFE_PE_DMACFG_SGRESET	0x00000004	/* reset scatter/gather cache */
+#define	SAFE_PE_DMACFG_FSENA	0x00000008	/* enable failsafe reset */
+#define	SAFE_PE_DMACFG_PEMODE	0x00000100	/* packet engine mode */
+#define	SAFE_PE_DMACFG_SAPREC	0x00000200	/* SA precedes packet */
+#define	SAFE_PE_DMACFG_PKFOLL	0x00000400	/* packet follows descriptor */
+#define	SAFE_PE_DMACFG_GPRBID	0x00003000	/* gather particle ring busid */
+#define	SAFE_PE_DMACFG_GPRPCI	0x00001000	/* PCI gather particle ring */
+#define	SAFE_PE_DMACFG_SPRBID	0x0000c000	/* scatter part. ring busid */
+#define	SAFE_PE_DMACFG_SPRPCI	0x00004000	/* PCI scatter part. ring */
+#define	SAFE_PE_DMACFG_ESDESC	0x00010000	/* endian swap descriptors */
+#define	SAFE_PE_DMACFG_ESSA	0x00020000	/* endian swap SA data */
+#define	SAFE_PE_DMACFG_ESPACKET	0x00040000	/* endian swap packet data */
+#define	SAFE_PE_DMACFG_ESPDESC	0x00080000	/* endian swap particle desc. */
+#define	SAFE_PE_DMACFG_NOPDRUP	0x00100000	/* supp. PDR ownership update */
+#define	SAFE_PD_EDMACFG_PCIMODE	0x01000000	/* PCI target mode */
+
+#define	SAFE_PE_DMASTAT_PEIDONE	0x00000001	/* PE core input done */
+#define	SAFE_PE_DMASTAT_PEODONE	0x00000002	/* PE core output done */
+#define	SAFE_PE_DMASTAT_ENCDONE	0x00000004	/* encryption done */
+#define	SAFE_PE_DMASTAT_IHDONE	0x00000008	/* inner hash done */
+#define	SAFE_PE_DMASTAT_OHDONE	0x00000010	/* outer hash (HMAC) done */
+#define	SAFE_PE_DMASTAT_PADFLT	0x00000020	/* crypto pad fault */
+#define	SAFE_PE_DMASTAT_ICVFLT	0x00000040	/* ICV fault */
+#define	SAFE_PE_DMASTAT_SPIMIS	0x00000080	/* SPI mismatch */
+#define	SAFE_PE_DMASTAT_CRYPTO	0x00000100	/* crypto engine timeout */
+#define	SAFE_PE_DMASTAT_CQACT	0x00000200	/* command queue active */
+#define	SAFE_PE_DMASTAT_IRACT	0x00000400	/* input request active */
+#define	SAFE_PE_DMASTAT_ORACT	0x00000800	/* output request active */
+#define	SAFE_PE_DMASTAT_PEISIZE	0x003ff000	/* PE input size:32-bit words */
+#define	SAFE_PE_DMASTAT_PEOSIZE	0xffc00000	/* PE out. size:32-bit words */
+
+#define	SAFE_PE_RINGCFG_SIZE	0x000003ff	/* ring size (descriptors) */
+#define	SAFE_PE_RINGCFG_OFFSET	0xffff0000	/* offset btw desc's (dwords) */
+#define	SAFE_PE_RINGCFG_OFFSET_S	16
+
+#define	SAFE_PE_RINGPOLL_POLL	0x00000fff	/* polling frequency/divisor */
+#define	SAFE_PE_RINGPOLL_RETRY	0x03ff0000	/* polling frequency/divisor */
+#define	SAFE_PE_RINGPOLL_CONT	0x80000000	/* continuously poll */
+
+#define	SAFE_PE_IRNGSTAT_CQAVAIL 0x00000001	/* command queue available */
+
+#define	SAFE_PE_ERNGSTAT_NEXT	0x03ff0000	/* index of next packet desc. */
+#define	SAFE_PE_ERNGSTAT_NEXT_S	16
+
+#define	SAFE_PE_IOTHRESH_INPUT	0x000003ff	/* input threshold (dwords) */
+#define	SAFE_PE_IOTHRESH_OUTPUT	0x03ff0000	/* output threshold (dwords) */
+
+#define	SAFE_PE_PARTCFG_SIZE	0x0000ffff	/* scatter particle size */
+#define	SAFE_PE_PARTCFG_GBURST	0x00030000	/* gather particle burst */
+#define	SAFE_PE_PARTCFG_GBURST_2	0x00000000
+#define	SAFE_PE_PARTCFG_GBURST_4	0x00010000
+#define	SAFE_PE_PARTCFG_GBURST_8	0x00020000
+#define	SAFE_PE_PARTCFG_GBURST_16	0x00030000
+#define	SAFE_PE_PARTCFG_SBURST	0x000c0000	/* scatter particle burst */
+#define	SAFE_PE_PARTCFG_SBURST_2	0x00000000
+#define	SAFE_PE_PARTCFG_SBURST_4	0x00040000
+#define	SAFE_PE_PARTCFG_SBURST_8	0x00080000
+#define	SAFE_PE_PARTCFG_SBURST_16	0x000c0000
+
+#define	SAFE_PE_PARTSIZE_SCAT	0xffff0000	/* scatter particle ring size */
+#define	SAFE_PE_PARTSIZE_GATH	0x0000ffff	/* gather particle ring size */
+
+#define	SAFE_CRYPTO_CTRL_3DES	0x00000001	/* enable 3DES support */
+#define	SAFE_CRYPTO_CTRL_PKEY	0x00010000	/* enable public key support */
+#define	SAFE_CRYPTO_CTRL_RNG	0x00020000	/* enable RNG support */
+
+#define	SAFE_DEVINFO_REV_MIN	0x0000000f	/* minor rev for chip */
+#define	SAFE_DEVINFO_REV_MAJ	0x000000f0	/* major rev for chip */
+#define	SAFE_DEVINFO_REV_MAJ_S	4
+#define	SAFE_DEVINFO_DES	0x00000100	/* DES/3DES support present */
+#define	SAFE_DEVINFO_ARC4	0x00000200	/* ARC4 support present */
+#define	SAFE_DEVINFO_AES	0x00000400	/* AES support present */
+#define	SAFE_DEVINFO_MD5	0x00001000	/* MD5 support present */
+#define	SAFE_DEVINFO_SHA1	0x00002000	/* SHA-1 support present */
+#define	SAFE_DEVINFO_RIPEMD	0x00004000	/* RIPEMD support present */
+#define	SAFE_DEVINFO_DEFLATE	0x00010000	/* Deflate support present */
+#define	SAFE_DEVINFO_SARAM	0x00100000	/* on-chip SA RAM present */
+#define	SAFE_DEVINFO_EMIBUS	0x00200000	/* EMI bus present */
+#define	SAFE_DEVINFO_PKEY	0x00400000	/* public key support present */
+#define	SAFE_DEVINFO_RNG	0x00800000	/* RNG present */
+
+#define	SAFE_REV(_maj, _min)	(((_maj) << SAFE_DEVINFO_REV_MAJ_S) | (_min))
+#define	SAFE_REV_MAJ(_chiprev) \
+	(((_chiprev) & SAFE_DEVINFO_REV_MAJ) >> SAFE_DEVINFO_REV_MAJ_S)
+#define	SAFE_REV_MIN(_chiprev)	((_chiprev) & SAFE_DEVINFO_REV_MIN)
+
+#define	SAFE_PK_FUNC_MULT	0x00000001	/* Multiply function */
+#define	SAFE_PK_FUNC_SQUARE	0x00000004	/* Square function */
+#define	SAFE_PK_FUNC_ADD	0x00000010	/* Add function */
+#define	SAFE_PK_FUNC_SUB	0x00000020	/* Subtract function */
+#define	SAFE_PK_FUNC_LSHIFT	0x00000040	/* Left-shift function */
+#define	SAFE_PK_FUNC_RSHIFT	0x00000080	/* Right-shift function */
+#define	SAFE_PK_FUNC_DIV	0x00000100	/* Divide function */
+#define	SAFE_PK_FUNC_CMP	0x00000400	/* Compare function */
+#define	SAFE_PK_FUNC_COPY	0x00000800	/* Copy function */
+#define	SAFE_PK_FUNC_EXP16	0x00002000	/* Exponentiate (4-bit ACT) */
+#define	SAFE_PK_FUNC_EXP4	0x00004000	/* Exponentiate (2-bit ACT) */
+#define	SAFE_PK_FUNC_RUN	0x00008000	/* start/status */
+
+#define	SAFE_RNG_STAT_BUSY	0x00000001	/* busy, data not valid */
+
+#define	SAFE_RNG_CTRL_PRE_LFSR	0x00000001	/* enable output pre-LFSR */
+#define	SAFE_RNG_CTRL_TST_MODE	0x00000002	/* enable test mode */
+#define	SAFE_RNG_CTRL_TST_RUN	0x00000004	/* start test state machine */
+#define	SAFE_RNG_CTRL_ENA_RING1	0x00000008	/* test entropy oscillator #1 */
+#define	SAFE_RNG_CTRL_ENA_RING2	0x00000010	/* test entropy oscillator #2 */
+#define	SAFE_RNG_CTRL_DIS_ALARM	0x00000020	/* disable RNG alarm reports */
+#define	SAFE_RNG_CTRL_TST_CLOCK	0x00000040	/* enable test clock */
+#define	SAFE_RNG_CTRL_SHORTEN	0x00000080	/* shorten state timers */
+#define	SAFE_RNG_CTRL_TST_ALARM	0x00000100	/* simulate alarm state */
+#define	SAFE_RNG_CTRL_RST_LFSR	0x00000200	/* reset LFSR */
+
+/*
+ * Packet engine descriptor.  Note that d_csr is a copy of the
+ * SAFE_PE_CSR register and all definitions apply, and d_len
+ * is a copy of the SAFE_PE_LEN register and all definitions apply.
+ * d_src and d_len may point directly to contiguous data or to a
+ * list of ``particle descriptors'' when using scatter/gather i/o.
+ */
+struct safe_desc {
+	u_int32_t	d_csr;			/* per-packet control/status */
+	u_int32_t	d_src;			/* source address */
+	u_int32_t	d_dst;			/* destination address */
+	u_int32_t	d_sa;			/* SA address */
+	u_int32_t	d_len;			/* length, bypass, status */
+};
+
+/*
+ * Scatter/Gather particle descriptor.
+ *
+ * NB: scatter descriptors do not specify a size; this is fixed
+ *     by the setting of the SAFE_PE_PARTCFG register.
+ */
+struct safe_pdesc {
+	u_int32_t	pd_addr;		/* particle address */
+#ifdef __BIG_ENDIAN
+	u_int16_t	pd_flags;		/* control word */
+	u_int16_t	pd_size;		/* particle size (bytes) */
+#else
+	u_int16_t	pd_flags;		/* control word */
+	u_int16_t	pd_size;		/* particle size (bytes) */
+#endif
+};
+
+#define	SAFE_PD_READY	0x0001			/* ready for processing */
+#define	SAFE_PD_DONE	0x0002			/* h/w completed processing */
+
+/*
+ * Security Association (SA) Record (Rev 1).  One of these is
+ * required for each operation processed by the packet engine.
+ */
+struct safe_sarec {
+	u_int32_t	sa_cmd0;
+	u_int32_t	sa_cmd1;
+	u_int32_t	sa_resv0;
+	u_int32_t	sa_resv1;
+	u_int32_t	sa_key[8];		/* DES/3DES/AES key */
+	u_int32_t	sa_indigest[5];		/* inner digest */
+	u_int32_t	sa_outdigest[5];	/* outer digest */
+	u_int32_t	sa_spi;			/* SPI */
+	u_int32_t	sa_seqnum;		/* sequence number */
+	u_int32_t	sa_seqmask[2];		/* sequence number mask */
+	u_int32_t	sa_resv2;
+	u_int32_t	sa_staterec;		/* address of state record */
+	u_int32_t	sa_resv3[2];
+	u_int32_t	sa_samgmt0;		/* SA management field 0 */
+	u_int32_t	sa_samgmt1;		/* SA management field 0 */
+};
+
+#define	SAFE_SA_CMD0_OP		0x00000007	/* operation code */
+#define	SAFE_SA_CMD0_OP_CRYPT	0x00000000	/* encrypt/decrypt (basic) */
+#define	SAFE_SA_CMD0_OP_BOTH	0x00000001	/* encrypt-hash/hash-decrypto */
+#define	SAFE_SA_CMD0_OP_HASH	0x00000003	/* hash (outbound-only) */
+#define	SAFE_SA_CMD0_OP_ESP	0x00000000	/* ESP in/out (proto) */
+#define	SAFE_SA_CMD0_OP_AH	0x00000001	/* AH in/out (proto) */
+#define	SAFE_SA_CMD0_INBOUND	0x00000008	/* inbound operation */
+#define	SAFE_SA_CMD0_OUTBOUND	0x00000000	/* outbound operation */
+#define	SAFE_SA_CMD0_GROUP	0x00000030	/* operation group */
+#define	SAFE_SA_CMD0_BASIC	0x00000000	/* basic operation */
+#define	SAFE_SA_CMD0_PROTO	0x00000010	/* protocol/packet operation */
+#define	SAFE_SA_CMD0_BUNDLE	0x00000020	/* bundled operation (resvd) */
+#define	SAFE_SA_CMD0_PAD	0x000000c0	/* crypto pad method */
+#define	SAFE_SA_CMD0_PAD_IPSEC	0x00000000	/* IPsec padding */
+#define	SAFE_SA_CMD0_PAD_PKCS7	0x00000040	/* PKCS#7 padding */
+#define	SAFE_SA_CMD0_PAD_CONS	0x00000080	/* constant padding */
+#define	SAFE_SA_CMD0_PAD_ZERO	0x000000c0	/* zero padding */
+#define	SAFE_SA_CMD0_CRYPT_ALG	0x00000f00	/* symmetric crypto algorithm */
+#define	SAFE_SA_CMD0_DES	0x00000000	/* DES crypto algorithm */
+#define	SAFE_SA_CMD0_3DES	0x00000100	/* 3DES crypto algorithm */
+#define	SAFE_SA_CMD0_AES	0x00000300	/* AES crypto algorithm */
+#define	SAFE_SA_CMD0_CRYPT_NULL	0x00000f00	/* null crypto algorithm */
+#define	SAFE_SA_CMD0_HASH_ALG	0x0000f000	/* hash algorithm */
+#define	SAFE_SA_CMD0_MD5	0x00000000	/* MD5 hash algorithm */
+#define	SAFE_SA_CMD0_SHA1	0x00001000	/* SHA-1 hash algorithm */
+#define	SAFE_SA_CMD0_HASH_NULL	0x0000f000	/* null hash algorithm */
+#define	SAFE_SA_CMD0_HDR_PROC	0x00080000	/* header processing */
+#define	SAFE_SA_CMD0_IBUSID	0x00300000	/* input bus id */
+#define	SAFE_SA_CMD0_IPCI	0x00100000	/* PCI input bus id */
+#define	SAFE_SA_CMD0_OBUSID	0x00c00000	/* output bus id */
+#define	SAFE_SA_CMD0_OPCI	0x00400000	/* PCI output bus id */
+#define	SAFE_SA_CMD0_IVLD	0x03000000	/* IV loading */
+#define	SAFE_SA_CMD0_IVLD_NONE	0x00000000	/* IV no load (reuse) */
+#define	SAFE_SA_CMD0_IVLD_IBUF	0x01000000	/* IV load from input buffer */
+#define	SAFE_SA_CMD0_IVLD_STATE	0x02000000	/* IV load from state */
+#define	SAFE_SA_CMD0_HSLD	0x0c000000	/* hash state loading */
+#define	SAFE_SA_CMD0_HSLD_SA	0x00000000	/* hash state load from SA */
+#define	SAFE_SA_CMD0_HSLD_STATE	0x08000000	/* hash state load from state */
+#define	SAFE_SA_CMD0_HSLD_NONE	0x0c000000	/* hash state no load */
+#define	SAFE_SA_CMD0_SAVEIV	0x10000000	/* save IV */
+#define	SAFE_SA_CMD0_SAVEHASH	0x20000000	/* save hash state */
+#define	SAFE_SA_CMD0_IGATHER	0x40000000	/* input gather */
+#define	SAFE_SA_CMD0_OSCATTER	0x80000000	/* output scatter */
+
+#define	SAFE_SA_CMD1_HDRCOPY	0x00000002	/* copy header to output */
+#define	SAFE_SA_CMD1_PAYCOPY	0x00000004	/* copy payload to output */
+#define	SAFE_SA_CMD1_PADCOPY	0x00000008	/* copy pad to output */
+#define	SAFE_SA_CMD1_IPV4	0x00000000	/* IPv4 protocol */
+#define	SAFE_SA_CMD1_IPV6	0x00000010	/* IPv6 protocol */
+#define	SAFE_SA_CMD1_MUTABLE	0x00000020	/* mutable bit processing */
+#define	SAFE_SA_CMD1_SRBUSID	0x000000c0	/* state record bus id */
+#define	SAFE_SA_CMD1_SRPCI	0x00000040	/* state record from PCI */
+#define	SAFE_SA_CMD1_CRMODE	0x00000300	/* crypto mode */
+#define	SAFE_SA_CMD1_ECB	0x00000000	/* ECB crypto mode */
+#define	SAFE_SA_CMD1_CBC	0x00000100	/* CBC crypto mode */
+#define	SAFE_SA_CMD1_OFB	0x00000200	/* OFB crypto mode */
+#define	SAFE_SA_CMD1_CFB	0x00000300	/* CFB crypto mode */
+#define	SAFE_SA_CMD1_CRFEEDBACK	0x00000c00	/* crypto feedback mode */
+#define	SAFE_SA_CMD1_64BIT	0x00000000	/* 64-bit crypto feedback */
+#define	SAFE_SA_CMD1_8BIT	0x00000400	/* 8-bit crypto feedback */
+#define	SAFE_SA_CMD1_1BIT	0x00000800	/* 1-bit crypto feedback */
+#define	SAFE_SA_CMD1_128BIT	0x00000c00	/* 128-bit crypto feedback */
+#define	SAFE_SA_CMD1_OPTIONS	0x00001000	/* HMAC/options mutable bit */
+#define	SAFE_SA_CMD1_HMAC	SAFE_SA_CMD1_OPTIONS
+#define	SAFE_SA_CMD1_SAREV1	0x00008000	/* SA Revision 1 */
+#define	SAFE_SA_CMD1_OFFSET	0x00ff0000	/* hash/crypto offset(dwords) */
+#define	SAFE_SA_CMD1_OFFSET_S	16
+#define	SAFE_SA_CMD1_AESKEYLEN	0x0f000000	/* AES key length */
+#define	SAFE_SA_CMD1_AES128	0x02000000	/* 128-bit AES key */
+#define	SAFE_SA_CMD1_AES192	0x03000000	/* 192-bit AES key */
+#define	SAFE_SA_CMD1_AES256	0x04000000	/* 256-bit AES key */
+
+/* 
+ * Security Associate State Record (Rev 1).
+ */
+struct safe_sastate {
+	u_int32_t	sa_saved_iv[4];		/* saved IV (DES/3DES/AES) */
+	u_int32_t	sa_saved_hashbc;	/* saved hash byte count */
+	u_int32_t	sa_saved_indigest[5];	/* saved inner digest */
+};
+#endif /* _SAFE_SAFEREG_H_ */
diff -Nur linux-2.6.29.1.orig/crypto/ocf/safe/safevar.h linux-2.6.29.1/crypto/ocf/safe/safevar.h
--- linux-2.6.29.1.orig/crypto/ocf/safe/safevar.h	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/safe/safevar.h	2009-04-20 20:01:21.624562844 +0200
@@ -0,0 +1,230 @@
+/*-
+ * The linux port of this code done by David McCullough
+ * Copyright (C) 2004-2007 David McCullough <david_mccullough@securecomputing.com>
+ * The license and original author are listed below.
+ *
+ * Copyright (c) 2003 Sam Leffler, Errno Consulting
+ * Copyright (c) 2003 Global Technology Associates, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD: src/sys/dev/safe/safevar.h,v 1.2 2006/05/17 18:34:26 pjd Exp $
+ */
+#ifndef _SAFE_SAFEVAR_H_
+#define	_SAFE_SAFEVAR_H_
+
+/* Maximum queue length */
+#ifndef SAFE_MAX_NQUEUE
+#define SAFE_MAX_NQUEUE	60
+#endif
+
+#define	SAFE_MAX_PART		64	/* Maximum scatter/gather depth */
+#define	SAFE_DMA_BOUNDARY	0	/* No boundary for source DMA ops */
+#define	SAFE_MAX_DSIZE		2048 /* MCLBYTES Fixed scatter particle size */
+#define	SAFE_MAX_SSIZE		0x0ffff	/* Maximum gather particle size */
+#define	SAFE_MAX_DMA		0xfffff	/* Maximum PE operand size (20 bits) */
+/* total src+dst particle descriptors */
+#define	SAFE_TOTAL_DPART	(SAFE_MAX_NQUEUE * SAFE_MAX_PART)
+#define	SAFE_TOTAL_SPART	(SAFE_MAX_NQUEUE * SAFE_MAX_PART)
+
+#define	SAFE_RNG_MAXBUFSIZ	128	/* 32-bit words */
+
+#define	SAFE_CARD(sid)		(((sid) & 0xf0000000) >> 28)
+#define	SAFE_SESSION(sid)	( (sid) & 0x0fffffff)
+#define	SAFE_SID(crd, sesn)	(((crd) << 28) | ((sesn) & 0x0fffffff))
+
+#define SAFE_DEF_RTY		0xff	/* PCI Retry Timeout */
+#define SAFE_DEF_TOUT		0xff	/* PCI TRDY Timeout */
+#define SAFE_DEF_CACHELINE	0x01	/* Cache Line setting */
+
+#ifdef __KERNEL__
+/*
+ * State associated with the allocation of each chunk
+ * of memory setup for DMA.
+ */
+struct safe_dma_alloc {
+	dma_addr_t		dma_paddr;
+	void			*dma_vaddr;
+};
+
+/*
+ * Cryptographic operand state.  One of these exists for each
+ * source and destination operand passed in from the crypto
+ * subsystem.  When possible source and destination operands
+ * refer to the same memory.  More often they are distinct.
+ * We track the virtual address of each operand as well as
+ * where each is mapped for DMA.
+ */
+struct safe_operand {
+	union {
+		struct sk_buff *skb;
+		struct uio *io;
+	} u;
+	void			*map;
+	int				mapsize;	/* total number of bytes in segs */
+	struct {
+		dma_addr_t	ds_addr;
+		int			ds_len;
+		int			ds_tlen;
+	} segs[SAFE_MAX_PART];
+	int				nsegs;
+};
+
+/*
+ * Packet engine ring entry and cryptographic operation state.
+ * The packet engine requires a ring of descriptors that contain
+ * pointers to various cryptographic state.  However the ring
+ * configuration register allows you to specify an arbitrary size
+ * for ring entries.  We use this feature to collect most of the
+ * state for each cryptographic request into one spot.  Other than
+ * ring entries only the ``particle descriptors'' (scatter/gather
+ * lists) and the actual operand data are kept separate.  The
+ * particle descriptors must also be organized in rings.  The
+ * operand data can be located aribtrarily (modulo alignment constraints).
+ *
+ * Note that the descriptor ring is mapped onto the PCI bus so
+ * the hardware can DMA data.  This means the entire ring must be
+ * contiguous.
+ */
+struct safe_ringentry {
+	struct safe_desc	re_desc;	/* command descriptor */
+	struct safe_sarec	re_sa;		/* SA record */
+	struct safe_sastate	re_sastate;	/* SA state record */
+
+	struct cryptop		*re_crp;	/* crypto operation */
+
+	struct safe_operand	re_src;		/* source operand */
+	struct safe_operand	re_dst;		/* destination operand */
+
+	int			re_sesn;	/* crypto session ID */
+	int			re_flags;
+#define	SAFE_QFLAGS_COPYOUTIV	0x1		/* copy back on completion */
+#define	SAFE_QFLAGS_COPYOUTICV	0x2		/* copy back on completion */
+};
+
+#define	re_src_skb	re_src.u.skb
+#define	re_src_io	re_src.u.io
+#define	re_src_map	re_src.map
+#define	re_src_nsegs	re_src.nsegs
+#define	re_src_segs	re_src.segs
+#define	re_src_mapsize	re_src.mapsize
+
+#define	re_dst_skb	re_dst.u.skb
+#define	re_dst_io	re_dst.u.io
+#define	re_dst_map	re_dst.map
+#define	re_dst_nsegs	re_dst.nsegs
+#define	re_dst_segs	re_dst.segs
+#define	re_dst_mapsize	re_dst.mapsize
+
+struct rndstate_test;
+
+struct safe_session {
+	u_int32_t	ses_used;
+	u_int32_t	ses_klen;		/* key length in bits */
+	u_int32_t	ses_key[8];		/* DES/3DES/AES key */
+	u_int32_t	ses_mlen;		/* hmac length in bytes */
+	u_int32_t	ses_hminner[5];		/* hmac inner state */
+	u_int32_t	ses_hmouter[5];		/* hmac outer state */
+	u_int32_t	ses_iv[4];		/* DES/3DES/AES iv */
+};
+
+struct safe_pkq {
+	struct list_head	pkq_list;
+	struct cryptkop		*pkq_krp;
+};
+
+struct safe_softc {
+	softc_device_decl	sc_dev;
+	u32			sc_irq;
+
+	struct pci_dev		*sc_pcidev;
+	ocf_iomem_t		sc_base_addr;
+
+	u_int			sc_chiprev;	/* major/minor chip revision */
+	int			sc_flags;	/* device specific flags */
+#define	SAFE_FLAGS_KEY		0x01		/* has key accelerator */
+#define	SAFE_FLAGS_RNG		0x02		/* hardware rng */
+	int			sc_suspended;
+	int			sc_needwakeup;	/* notify crypto layer */
+	int32_t			sc_cid;		/* crypto tag */
+
+	struct safe_dma_alloc	sc_ringalloc;	/* PE ring allocation state */
+	struct safe_ringentry	*sc_ring;	/* PE ring */
+	struct safe_ringentry	*sc_ringtop;	/* PE ring top */
+	struct safe_ringentry	*sc_front;	/* next free entry */
+	struct safe_ringentry	*sc_back;	/* next pending entry */
+	int			sc_nqchip;	/* # passed to chip */
+	spinlock_t		sc_ringmtx;	/* PE ring lock */
+	struct safe_pdesc	*sc_spring;	/* src particle ring */
+	struct safe_pdesc	*sc_springtop;	/* src particle ring top */
+	struct safe_pdesc	*sc_spfree;	/* next free src particle */
+	struct safe_dma_alloc	sc_spalloc;	/* src particle ring state */
+	struct safe_pdesc	*sc_dpring;	/* dest particle ring */
+	struct safe_pdesc	*sc_dpringtop;	/* dest particle ring top */
+	struct safe_pdesc	*sc_dpfree;	/* next free dest particle */
+	struct safe_dma_alloc	sc_dpalloc;	/* dst particle ring state */
+	int			sc_nsessions;	/* # of sessions */
+	struct safe_session	*sc_sessions;	/* sessions */
+
+	struct timer_list	sc_pkto;	/* PK polling */
+	spinlock_t		sc_pkmtx;	/* PK lock */
+	struct list_head	sc_pkq;		/* queue of PK requests */
+	struct safe_pkq		*sc_pkq_cur;	/* current processing request */
+	u_int32_t		sc_pk_reslen, sc_pk_resoff;
+
+	int			sc_max_dsize;	/* maximum safe DMA size */
+};
+#endif /* __KERNEL__ */
+
+struct safe_stats {
+	u_int64_t st_ibytes;
+	u_int64_t st_obytes;
+	u_int32_t st_ipackets;
+	u_int32_t st_opackets;
+	u_int32_t st_invalid;		/* invalid argument */
+	u_int32_t st_badsession;	/* invalid session id */
+	u_int32_t st_badflags;		/* flags indicate !(mbuf | uio) */
+	u_int32_t st_nodesc;		/* op submitted w/o descriptors */
+	u_int32_t st_badalg;		/* unsupported algorithm */
+	u_int32_t st_ringfull;		/* PE descriptor ring full */
+	u_int32_t st_peoperr;		/* PE marked error */
+	u_int32_t st_dmaerr;		/* PE DMA error */
+	u_int32_t st_bypasstoobig;	/* bypass > 96 bytes */
+	u_int32_t st_skipmismatch;	/* enc part begins before auth part */
+	u_int32_t st_lenmismatch;	/* enc length different auth length */
+	u_int32_t st_coffmisaligned;	/* crypto offset not 32-bit aligned */
+	u_int32_t st_cofftoobig;	/* crypto offset > 255 words */
+	u_int32_t st_iovmisaligned;	/* iov op not aligned */
+	u_int32_t st_iovnotuniform;	/* iov op not suitable */
+	u_int32_t st_unaligned;		/* unaligned src caused copy */
+	u_int32_t st_notuniform;	/* non-uniform src caused copy */
+	u_int32_t st_nomap;		/* bus_dmamap_create failed */
+	u_int32_t st_noload;		/* bus_dmamap_load_* failed */
+	u_int32_t st_nombuf;		/* MGET* failed */
+	u_int32_t st_nomcl;		/* MCLGET* failed */
+	u_int32_t st_maxqchip;		/* max mcr1 ops out for processing */
+	u_int32_t st_rng;		/* RNG requests */
+	u_int32_t st_rngalarm;		/* RNG alarm requests */
+	u_int32_t st_noicvcopy;		/* ICV data copies suppressed */
+};
+#endif /* _SAFE_SAFEVAR_H_ */
diff -Nur linux-2.6.29.1.orig/crypto/ocf/safe/sha1.c linux-2.6.29.1/crypto/ocf/safe/sha1.c
--- linux-2.6.29.1.orig/crypto/ocf/safe/sha1.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/safe/sha1.c	2009-04-20 20:01:21.628563633 +0200
@@ -0,0 +1,279 @@
+/*	$KAME: sha1.c,v 1.5 2000/11/08 06:13:08 itojun Exp $	*/
+/*
+ * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * FIPS pub 180-1: Secure Hash Algorithm (SHA-1)
+ * based on: http://csrc.nist.gov/fips/fip180-1.txt
+ * implemented by Jun-ichiro itojun Itoh <itojun@itojun.org>
+ */
+
+#if 0
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: src/sys/crypto/sha1.c,v 1.9 2003/06/10 21:36:57 obrien Exp $");
+
+#include <sys/types.h>
+#include <sys/cdefs.h>
+#include <sys/time.h>
+#include <sys/systm.h>
+
+#include <crypto/sha1.h>
+#endif
+
+/* sanity check */
+#if BYTE_ORDER != BIG_ENDIAN
+# if BYTE_ORDER != LITTLE_ENDIAN
+#  define unsupported 1
+# endif
+#endif
+
+#ifndef unsupported
+
+/* constant table */
+static u_int32_t _K[] = { 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xca62c1d6 };
+#define	K(t)	_K[(t) / 20]
+
+#define	F0(b, c, d)	(((b) & (c)) | ((~(b)) & (d)))
+#define	F1(b, c, d)	(((b) ^ (c)) ^ (d))
+#define	F2(b, c, d)	(((b) & (c)) | ((b) & (d)) | ((c) & (d)))
+#define	F3(b, c, d)	(((b) ^ (c)) ^ (d))
+
+#define	S(n, x)		(((x) << (n)) | ((x) >> (32 - n)))
+
+#undef H
+#define	H(n)	(ctxt->h.b32[(n)])
+#define	COUNT	(ctxt->count)
+#define	BCOUNT	(ctxt->c.b64[0] / 8)
+#define	W(n)	(ctxt->m.b32[(n)])
+
+#define	PUTBYTE(x)	{ \
+	ctxt->m.b8[(COUNT % 64)] = (x);		\
+	COUNT++;				\
+	COUNT %= 64;				\
+	ctxt->c.b64[0] += 8;			\
+	if (COUNT % 64 == 0)			\
+		sha1_step(ctxt);		\
+     }
+
+#define	PUTPAD(x)	{ \
+	ctxt->m.b8[(COUNT % 64)] = (x);		\
+	COUNT++;				\
+	COUNT %= 64;				\
+	if (COUNT % 64 == 0)			\
+		sha1_step(ctxt);		\
+     }
+
+static void sha1_step(struct sha1_ctxt *);
+
+static void
+sha1_step(ctxt)
+	struct sha1_ctxt *ctxt;
+{
+	u_int32_t	a, b, c, d, e;
+	size_t t, s;
+	u_int32_t	tmp;
+
+#if BYTE_ORDER == LITTLE_ENDIAN
+	struct sha1_ctxt tctxt;
+	bcopy(&ctxt->m.b8[0], &tctxt.m.b8[0], 64);
+	ctxt->m.b8[0] = tctxt.m.b8[3]; ctxt->m.b8[1] = tctxt.m.b8[2];
+	ctxt->m.b8[2] = tctxt.m.b8[1]; ctxt->m.b8[3] = tctxt.m.b8[0];
+	ctxt->m.b8[4] = tctxt.m.b8[7]; ctxt->m.b8[5] = tctxt.m.b8[6];
+	ctxt->m.b8[6] = tctxt.m.b8[5]; ctxt->m.b8[7] = tctxt.m.b8[4];
+	ctxt->m.b8[8] = tctxt.m.b8[11]; ctxt->m.b8[9] = tctxt.m.b8[10];
+	ctxt->m.b8[10] = tctxt.m.b8[9]; ctxt->m.b8[11] = tctxt.m.b8[8];
+	ctxt->m.b8[12] = tctxt.m.b8[15]; ctxt->m.b8[13] = tctxt.m.b8[14];
+	ctxt->m.b8[14] = tctxt.m.b8[13]; ctxt->m.b8[15] = tctxt.m.b8[12];
+	ctxt->m.b8[16] = tctxt.m.b8[19]; ctxt->m.b8[17] = tctxt.m.b8[18];
+	ctxt->m.b8[18] = tctxt.m.b8[17]; ctxt->m.b8[19] = tctxt.m.b8[16];
+	ctxt->m.b8[20] = tctxt.m.b8[23]; ctxt->m.b8[21] = tctxt.m.b8[22];
+	ctxt->m.b8[22] = tctxt.m.b8[21]; ctxt->m.b8[23] = tctxt.m.b8[20];
+	ctxt->m.b8[24] = tctxt.m.b8[27]; ctxt->m.b8[25] = tctxt.m.b8[26];
+	ctxt->m.b8[26] = tctxt.m.b8[25]; ctxt->m.b8[27] = tctxt.m.b8[24];
+	ctxt->m.b8[28] = tctxt.m.b8[31]; ctxt->m.b8[29] = tctxt.m.b8[30];
+	ctxt->m.b8[30] = tctxt.m.b8[29]; ctxt->m.b8[31] = tctxt.m.b8[28];
+	ctxt->m.b8[32] = tctxt.m.b8[35]; ctxt->m.b8[33] = tctxt.m.b8[34];
+	ctxt->m.b8[34] = tctxt.m.b8[33]; ctxt->m.b8[35] = tctxt.m.b8[32];
+	ctxt->m.b8[36] = tctxt.m.b8[39]; ctxt->m.b8[37] = tctxt.m.b8[38];
+	ctxt->m.b8[38] = tctxt.m.b8[37]; ctxt->m.b8[39] = tctxt.m.b8[36];
+	ctxt->m.b8[40] = tctxt.m.b8[43]; ctxt->m.b8[41] = tctxt.m.b8[42];
+	ctxt->m.b8[42] = tctxt.m.b8[41]; ctxt->m.b8[43] = tctxt.m.b8[40];
+	ctxt->m.b8[44] = tctxt.m.b8[47]; ctxt->m.b8[45] = tctxt.m.b8[46];
+	ctxt->m.b8[46] = tctxt.m.b8[45]; ctxt->m.b8[47] = tctxt.m.b8[44];
+	ctxt->m.b8[48] = tctxt.m.b8[51]; ctxt->m.b8[49] = tctxt.m.b8[50];
+	ctxt->m.b8[50] = tctxt.m.b8[49]; ctxt->m.b8[51] = tctxt.m.b8[48];
+	ctxt->m.b8[52] = tctxt.m.b8[55]; ctxt->m.b8[53] = tctxt.m.b8[54];
+	ctxt->m.b8[54] = tctxt.m.b8[53]; ctxt->m.b8[55] = tctxt.m.b8[52];
+	ctxt->m.b8[56] = tctxt.m.b8[59]; ctxt->m.b8[57] = tctxt.m.b8[58];
+	ctxt->m.b8[58] = tctxt.m.b8[57]; ctxt->m.b8[59] = tctxt.m.b8[56];
+	ctxt->m.b8[60] = tctxt.m.b8[63]; ctxt->m.b8[61] = tctxt.m.b8[62];
+	ctxt->m.b8[62] = tctxt.m.b8[61]; ctxt->m.b8[63] = tctxt.m.b8[60];
+#endif
+
+	a = H(0); b = H(1); c = H(2); d = H(3); e = H(4);
+
+	for (t = 0; t < 20; t++) {
+		s = t & 0x0f;
+		if (t >= 16) {
+			W(s) = S(1, W((s+13) & 0x0f) ^ W((s+8) & 0x0f) ^ W((s+2) & 0x0f) ^ W(s));
+		}
+		tmp = S(5, a) + F0(b, c, d) + e + W(s) + K(t);
+		e = d; d = c; c = S(30, b); b = a; a = tmp;
+	}
+	for (t = 20; t < 40; t++) {
+		s = t & 0x0f;
+		W(s) = S(1, W((s+13) & 0x0f) ^ W((s+8) & 0x0f) ^ W((s+2) & 0x0f) ^ W(s));
+		tmp = S(5, a) + F1(b, c, d) + e + W(s) + K(t);
+		e = d; d = c; c = S(30, b); b = a; a = tmp;
+	}
+	for (t = 40; t < 60; t++) {
+		s = t & 0x0f;
+		W(s) = S(1, W((s+13) & 0x0f) ^ W((s+8) & 0x0f) ^ W((s+2) & 0x0f) ^ W(s));
+		tmp = S(5, a) + F2(b, c, d) + e + W(s) + K(t);
+		e = d; d = c; c = S(30, b); b = a; a = tmp;
+	}
+	for (t = 60; t < 80; t++) {
+		s = t & 0x0f;
+		W(s) = S(1, W((s+13) & 0x0f) ^ W((s+8) & 0x0f) ^ W((s+2) & 0x0f) ^ W(s));
+		tmp = S(5, a) + F3(b, c, d) + e + W(s) + K(t);
+		e = d; d = c; c = S(30, b); b = a; a = tmp;
+	}
+
+	H(0) = H(0) + a;
+	H(1) = H(1) + b;
+	H(2) = H(2) + c;
+	H(3) = H(3) + d;
+	H(4) = H(4) + e;
+
+	bzero(&ctxt->m.b8[0], 64);
+}
+
+/*------------------------------------------------------------*/
+
+void
+sha1_init(ctxt)
+	struct sha1_ctxt *ctxt;
+{
+	bzero(ctxt, sizeof(struct sha1_ctxt));
+	H(0) = 0x67452301;
+	H(1) = 0xefcdab89;
+	H(2) = 0x98badcfe;
+	H(3) = 0x10325476;
+	H(4) = 0xc3d2e1f0;
+}
+
+void
+sha1_pad(ctxt)
+	struct sha1_ctxt *ctxt;
+{
+	size_t padlen;		/*pad length in bytes*/
+	size_t padstart;
+
+	PUTPAD(0x80);
+
+	padstart = COUNT % 64;
+	padlen = 64 - padstart;
+	if (padlen < 8) {
+		bzero(&ctxt->m.b8[padstart], padlen);
+		COUNT += padlen;
+		COUNT %= 64;
+		sha1_step(ctxt);
+		padstart = COUNT % 64;	/* should be 0 */
+		padlen = 64 - padstart;	/* should be 64 */
+	}
+	bzero(&ctxt->m.b8[padstart], padlen - 8);
+	COUNT += (padlen - 8);
+	COUNT %= 64;
+#if BYTE_ORDER == BIG_ENDIAN
+	PUTPAD(ctxt->c.b8[0]); PUTPAD(ctxt->c.b8[1]);
+	PUTPAD(ctxt->c.b8[2]); PUTPAD(ctxt->c.b8[3]);
+	PUTPAD(ctxt->c.b8[4]); PUTPAD(ctxt->c.b8[5]);
+	PUTPAD(ctxt->c.b8[6]); PUTPAD(ctxt->c.b8[7]);
+#else
+	PUTPAD(ctxt->c.b8[7]); PUTPAD(ctxt->c.b8[6]);
+	PUTPAD(ctxt->c.b8[5]); PUTPAD(ctxt->c.b8[4]);
+	PUTPAD(ctxt->c.b8[3]); PUTPAD(ctxt->c.b8[2]);
+	PUTPAD(ctxt->c.b8[1]); PUTPAD(ctxt->c.b8[0]);
+#endif
+}
+
+void
+sha1_loop(ctxt, input, len)
+	struct sha1_ctxt *ctxt;
+	const u_int8_t *input;
+	size_t len;
+{
+	size_t gaplen;
+	size_t gapstart;
+	size_t off;
+	size_t copysiz;
+
+	off = 0;
+
+	while (off < len) {
+		gapstart = COUNT % 64;
+		gaplen = 64 - gapstart;
+
+		copysiz = (gaplen < len - off) ? gaplen : len - off;
+		bcopy(&input[off], &ctxt->m.b8[gapstart], copysiz);
+		COUNT += copysiz;
+		COUNT %= 64;
+		ctxt->c.b64[0] += copysiz * 8;
+		if (COUNT % 64 == 0)
+			sha1_step(ctxt);
+		off += copysiz;
+	}
+}
+
+void
+sha1_result(ctxt, digest0)
+	struct sha1_ctxt *ctxt;
+	caddr_t digest0;
+{
+	u_int8_t *digest;
+
+	digest = (u_int8_t *)digest0;
+	sha1_pad(ctxt);
+#if BYTE_ORDER == BIG_ENDIAN
+	bcopy(&ctxt->h.b8[0], digest, 20);
+#else
+	digest[0] = ctxt->h.b8[3]; digest[1] = ctxt->h.b8[2];
+	digest[2] = ctxt->h.b8[1]; digest[3] = ctxt->h.b8[0];
+	digest[4] = ctxt->h.b8[7]; digest[5] = ctxt->h.b8[6];
+	digest[6] = ctxt->h.b8[5]; digest[7] = ctxt->h.b8[4];
+	digest[8] = ctxt->h.b8[11]; digest[9] = ctxt->h.b8[10];
+	digest[10] = ctxt->h.b8[9]; digest[11] = ctxt->h.b8[8];
+	digest[12] = ctxt->h.b8[15]; digest[13] = ctxt->h.b8[14];
+	digest[14] = ctxt->h.b8[13]; digest[15] = ctxt->h.b8[12];
+	digest[16] = ctxt->h.b8[19]; digest[17] = ctxt->h.b8[18];
+	digest[18] = ctxt->h.b8[17]; digest[19] = ctxt->h.b8[16];
+#endif
+}
+
+#endif /*unsupported*/
diff -Nur linux-2.6.29.1.orig/crypto/ocf/safe/sha1.h linux-2.6.29.1/crypto/ocf/safe/sha1.h
--- linux-2.6.29.1.orig/crypto/ocf/safe/sha1.h	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/safe/sha1.h	2009-04-20 20:01:21.628563633 +0200
@@ -0,0 +1,72 @@
+/*	$FreeBSD: src/sys/crypto/sha1.h,v 1.8 2002/03/20 05:13:50 alfred Exp $	*/
+/*	$KAME: sha1.h,v 1.5 2000/03/27 04:36:23 sumikawa Exp $	*/
+
+/*
+ * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+/*
+ * FIPS pub 180-1: Secure Hash Algorithm (SHA-1)
+ * based on: http://csrc.nist.gov/fips/fip180-1.txt
+ * implemented by Jun-ichiro itojun Itoh <itojun@itojun.org>
+ */
+
+#ifndef _NETINET6_SHA1_H_
+#define _NETINET6_SHA1_H_
+
+struct sha1_ctxt {
+	union {
+		u_int8_t	b8[20];
+		u_int32_t	b32[5];
+	} h;
+	union {
+		u_int8_t	b8[8];
+		u_int64_t	b64[1];
+	} c;
+	union {
+		u_int8_t	b8[64];
+		u_int32_t	b32[16];
+	} m;
+	u_int8_t	count;
+};
+
+#ifdef __KERNEL__
+extern void sha1_init(struct sha1_ctxt *);
+extern void sha1_pad(struct sha1_ctxt *);
+extern void sha1_loop(struct sha1_ctxt *, const u_int8_t *, size_t);
+extern void sha1_result(struct sha1_ctxt *, caddr_t);
+
+/* compatibilty with other SHA1 source codes */
+typedef struct sha1_ctxt SHA1_CTX;
+#define SHA1Init(x)		sha1_init((x))
+#define SHA1Update(x, y, z)	sha1_loop((x), (y), (z))
+#define SHA1Final(x, y)		sha1_result((y), (x))
+#endif /* __KERNEL__ */
+
+#define	SHA1_RESULTLEN	(160/8)
+
+#endif /*_NETINET6_SHA1_H_*/
diff -Nur linux-2.6.29.1.orig/crypto/ocf/talitos/Makefile linux-2.6.29.1/crypto/ocf/talitos/Makefile
--- linux-2.6.29.1.orig/crypto/ocf/talitos/Makefile	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/talitos/Makefile	2009-04-20 20:01:21.632564980 +0200
@@ -0,0 +1,12 @@
+# for SGlinux builds
+-include $(ROOTDIR)/modules/.config
+
+obj-$(CONFIG_OCF_TALITOS) += talitos.o
+
+obj ?= .
+EXTRA_CFLAGS += -I$(obj)/.. -I$(obj)/
+
+ifdef TOPDIR
+-include $(TOPDIR)/Rules.make
+endif
+
diff -Nur linux-2.6.29.1.orig/crypto/ocf/talitos/talitos.c linux-2.6.29.1/crypto/ocf/talitos/talitos.c
--- linux-2.6.29.1.orig/crypto/ocf/talitos/talitos.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/talitos/talitos.c	2009-04-20 20:01:21.632564980 +0200
@@ -0,0 +1,1359 @@
+/*
+ * crypto/ocf/talitos/talitos.c
+ *
+ * An OCF-Linux module that uses Freescale's SEC to do the crypto.
+ * Based on crypto/ocf/hifn and crypto/ocf/safe OCF drivers
+ *
+ * Copyright (c) 2006 Freescale Semiconductor, Inc.
+ *
+ * This code written by Kim A. B. Phillips <kim.phillips@freescale.com>
+ * some code copied from files with the following:
+ * Copyright (C) 2004-2007 David McCullough <david_mccullough@securecomputing.com
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---------------------------------------------------------------------------
+ *
+ * NOTES:
+ *
+ * The Freescale SEC (also known as 'talitos') resides on the
+ * internal bus, and runs asynchronous to the processor core.  It has
+ * a wide gamut of cryptographic acceleration features, including single-
+ * pass IPsec (also known as algorithm chaining).  To properly utilize 
+ * all of the SEC's performance enhancing features, further reworking 
+ * of higher level code (framework, applications) will be necessary.
+ *
+ * The following table shows which SEC version is present in which devices:
+ * 
+ * Devices       SEC version
+ *
+ * 8272, 8248    SEC 1.0
+ * 885, 875      SEC 1.2
+ * 8555E, 8541E  SEC 2.0
+ * 8349E         SEC 2.01
+ * 8548E         SEC 2.1
+ *
+ * The following table shows the features offered by each SEC version:
+ *
+ * 	                       Max.   chan-
+ * version  Bus I/F       Clock  nels  DEU AESU AFEU MDEU PKEU RNG KEU
+ *
+ * SEC 1.0  internal 64b  100MHz   4     1    1    1    1    1   1   0
+ * SEC 1.2  internal 32b   66MHz   1     1    1    0    1    0   0   0
+ * SEC 2.0  internal 64b  166MHz   4     1    1    1    1    1   1   0
+ * SEC 2.01 internal 64b  166MHz   4     1    1    1    1    1   1   0
+ * SEC 2.1  internal 64b  333MHz   4     1    1    1    1    1   1   1
+ *
+ * Each execution unit in the SEC has two modes of execution; channel and
+ * slave/debug.  This driver employs the channel infrastructure in the
+ * device for convenience.  Only the RNG is directly accessed due to the
+ * convenience of its random fifo pool.  The relationship between the
+ * channels and execution units is depicted in the following diagram:
+ *
+ *    -------   ------------
+ * ---| ch0 |---|          |
+ *    -------   |          |
+ *              |          |------+-------+-------+-------+------------
+ *    -------   |          |      |       |       |       |           |
+ * ---| ch1 |---|          |      |       |       |       |           |
+ *    -------   |          |   ------  ------  ------  ------      ------
+ *              |controller|   |DEU |  |AESU|  |MDEU|  |PKEU| ...  |RNG |
+ *    -------   |          |   ------  ------  ------  ------      ------
+ * ---| ch2 |---|          |      |       |       |       |           |
+ *    -------   |          |      |       |       |       |           |
+ *              |          |------+-------+-------+-------+------------
+ *    -------   |          |
+ * ---| ch3 |---|          |
+ *    -------   ------------
+ *
+ * Channel ch0 may drive an aes operation to the aes unit (AESU),
+ * and, at the same time, ch1 may drive a message digest operation
+ * to the mdeu. Each channel has an input descriptor FIFO, and the 
+ * FIFO can contain, e.g. on the 8541E, up to 24 entries, before a
+ * a buffer overrun error is triggered. The controller is responsible
+ * for fetching the data from descriptor pointers, and passing the 
+ * data to the appropriate EUs. The controller also writes the 
+ * cryptographic operation's result to memory. The SEC notifies 
+ * completion by triggering an interrupt and/or setting the 1st byte 
+ * of the hdr field to 0xff.
+ *
+ * TODO:
+ * o support more algorithms
+ * o support more versions of the SEC
+ * o add support for linux 2.4
+ * o scatter-gather (sg) support
+ * o add support for public key ops (PKEU)
+ * o add statistics
+ */
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/random.h>
+#include <linux/skbuff.h>
+#include <asm/scatterlist.h>
+#include <linux/dma-mapping.h>  /* dma_map_single() */
+#include <linux/moduleparam.h>
+
+#include <linux/version.h>
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15)
+#include <linux/platform_device.h>
+#endif
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19)
+#include <linux/of_platform.h>
+#endif
+
+#include <cryptodev.h>
+#include <uio.h>
+
+#define DRV_NAME "talitos" 
+
+#include "talitos_dev.h"
+#include "talitos_soft.h"
+
+#define read_random(p,l) get_random_bytes(p,l)
+
+const char talitos_driver_name[] = "Talitos OCF";
+const char talitos_driver_version[] = "0.2";
+
+static int talitos_newsession(device_t dev, u_int32_t *sidp,
+								struct cryptoini *cri);
+static int talitos_freesession(device_t dev, u_int64_t tid);
+static int talitos_process(device_t dev, struct cryptop *crp, int hint);
+static void dump_talitos_status(struct talitos_softc *sc);
+static int talitos_submit(struct talitos_softc *sc, struct talitos_desc *td, 
+								int chsel);
+static void talitos_doneprocessing(struct talitos_softc *sc);
+static void talitos_init_device(struct talitos_softc *sc);
+static void talitos_reset_device_master(struct talitos_softc *sc);
+static void talitos_reset_device(struct talitos_softc *sc);
+static void talitos_errorprocessing(struct talitos_softc *sc);
+#ifdef CONFIG_PPC_MERGE
+static int talitos_probe(struct of_device *ofdev, const struct of_device_id *match);
+static int talitos_remove(struct of_device *ofdev);
+#else
+static int talitos_probe(struct platform_device *pdev);
+static int talitos_remove(struct platform_device *pdev);
+#endif
+#ifdef CONFIG_OCF_RANDOMHARVEST
+static int talitos_read_random(void *arg, u_int32_t *buf, int maxwords);
+static void talitos_rng_init(struct talitos_softc *sc);
+#endif
+
+static device_method_t talitos_methods = {
+	/* crypto device methods */
+	DEVMETHOD(cryptodev_newsession,	talitos_newsession),
+	DEVMETHOD(cryptodev_freesession,talitos_freesession),
+	DEVMETHOD(cryptodev_process,	talitos_process),
+};
+
+#define debug talitos_debug
+int talitos_debug = 0;
+module_param(talitos_debug, int, 0644);
+MODULE_PARM_DESC(talitos_debug, "Enable debug");
+
+static inline void talitos_write(volatile unsigned *addr, u32 val)
+{
+        out_be32(addr, val);
+}
+
+static inline u32 talitos_read(volatile unsigned *addr)
+{
+        u32 val;
+        val = in_be32(addr);
+        return val;
+}
+
+static void dump_talitos_status(struct talitos_softc *sc)
+{
+	unsigned int v, v_hi, i, *ptr;
+	v = talitos_read(sc->sc_base_addr + TALITOS_MCR);
+	v_hi = talitos_read(sc->sc_base_addr + TALITOS_MCR_HI);
+	printk(KERN_INFO "%s: MCR          0x%08x_%08x\n",
+			device_get_nameunit(sc->sc_cdev), v, v_hi);
+	v = talitos_read(sc->sc_base_addr + TALITOS_IMR);
+	v_hi = talitos_read(sc->sc_base_addr + TALITOS_IMR_HI);
+	printk(KERN_INFO "%s: IMR          0x%08x_%08x\n",
+			device_get_nameunit(sc->sc_cdev), v, v_hi);
+	v = talitos_read(sc->sc_base_addr + TALITOS_ISR);
+	v_hi = talitos_read(sc->sc_base_addr + TALITOS_ISR_HI);
+	printk(KERN_INFO "%s: ISR          0x%08x_%08x\n",
+			device_get_nameunit(sc->sc_cdev), v, v_hi);
+	for (i = 0; i < sc->sc_num_channels; i++) { 
+		v = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET + 
+			TALITOS_CH_CDPR);
+		v_hi = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET + 
+			TALITOS_CH_CDPR_HI);
+		printk(KERN_INFO "%s: CDPR     ch%d 0x%08x_%08x\n", 
+				device_get_nameunit(sc->sc_cdev), i, v, v_hi);
+	}
+	for (i = 0; i < sc->sc_num_channels; i++) { 
+		v = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET + 
+			TALITOS_CH_CCPSR);
+		v_hi = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET + 
+			TALITOS_CH_CCPSR_HI);
+		printk(KERN_INFO "%s: CCPSR    ch%d 0x%08x_%08x\n", 
+				device_get_nameunit(sc->sc_cdev), i, v, v_hi);
+	}
+	ptr = sc->sc_base_addr + TALITOS_CH_DESCBUF;
+	for (i = 0; i < 16; i++) { 
+		v = talitos_read(ptr++); v_hi = talitos_read(ptr++);
+		printk(KERN_INFO "%s: DESCBUF  ch0 0x%08x_%08x (tdp%02d)\n", 
+				device_get_nameunit(sc->sc_cdev), v, v_hi, i);
+	}
+	return;
+}
+
+
+#ifdef CONFIG_OCF_RANDOMHARVEST
+/* 
+ * pull random numbers off the RNG FIFO, not exceeding amount available
+ */
+static int
+talitos_read_random(void *arg, u_int32_t *buf, int maxwords)
+{
+	struct talitos_softc *sc = (struct talitos_softc *) arg;
+	int rc;
+	u_int32_t v;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	/* check for things like FIFO underflow */
+	v = talitos_read(sc->sc_base_addr + TALITOS_RNGISR_HI);
+	if (unlikely(v)) {
+		printk(KERN_ERR "%s: RNGISR_HI error %08x\n",
+				device_get_nameunit(sc->sc_cdev), v);
+		return 0;
+	}
+	/*
+	 * OFL is number of available 64-bit words, 
+	 * shift and convert to a 32-bit word count
+	 */
+	v = talitos_read(sc->sc_base_addr + TALITOS_RNGSR_HI);
+	v = (v & TALITOS_RNGSR_HI_OFL) >> (16 - 1);
+	if (maxwords > v)
+		maxwords = v;
+	for (rc = 0; rc < maxwords; rc++) {
+		buf[rc] = talitos_read(sc->sc_base_addr + 
+			TALITOS_RNG_FIFO + rc*sizeof(u_int32_t));
+	}
+	if (maxwords & 1) {
+		/* 
+		 * RNG will complain with an AE in the RNGISR
+		 * if we don't complete the pairs of 32-bit reads
+		 * to its 64-bit register based FIFO
+		 */
+		v = talitos_read(sc->sc_base_addr + 
+			TALITOS_RNG_FIFO + rc*sizeof(u_int32_t));
+	}
+
+	return rc;
+}
+
+static void
+talitos_rng_init(struct talitos_softc *sc)
+{
+	u_int32_t v;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+	/* reset RNG EU */
+	v = talitos_read(sc->sc_base_addr + TALITOS_RNGRCR_HI);
+	v |= TALITOS_RNGRCR_HI_SR;
+	talitos_write(sc->sc_base_addr + TALITOS_RNGRCR_HI, v);
+	while ((talitos_read(sc->sc_base_addr + TALITOS_RNGSR_HI) 
+		& TALITOS_RNGSR_HI_RD) == 0)
+			cpu_relax();
+	/*
+	 * we tell the RNG to start filling the RNG FIFO
+	 * by writing the RNGDSR 
+	 */
+	v = talitos_read(sc->sc_base_addr + TALITOS_RNGDSR_HI);
+	talitos_write(sc->sc_base_addr + TALITOS_RNGDSR_HI, v);
+	/*
+	 * 64 bits of data will be pushed onto the FIFO every 
+	 * 256 SEC cycles until the FIFO is full.  The RNG then 
+	 * attempts to keep the FIFO full.
+	 */
+	v = talitos_read(sc->sc_base_addr + TALITOS_RNGISR_HI);
+	if (v) {
+		printk(KERN_ERR "%s: RNGISR_HI error %08x\n",
+			device_get_nameunit(sc->sc_cdev), v);
+		return;
+	}
+	/*
+	 * n.b. we need to add a FIPS test here - if the RNG is going 
+	 * to fail, it's going to fail at reset time
+	 */
+	return;
+}
+#endif /* CONFIG_OCF_RANDOMHARVEST */
+
+/*
+ * Generate a new software session.
+ */
+static int
+talitos_newsession(device_t dev, u_int32_t *sidp, struct cryptoini *cri)
+{
+	struct cryptoini *c, *encini = NULL, *macini = NULL;
+	struct talitos_softc *sc = device_get_softc(dev);
+	struct talitos_session *ses = NULL;
+	int sesn;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+	if (sidp == NULL || cri == NULL || sc == NULL) {
+		DPRINTF("%s,%d - EINVAL\n", __FILE__, __LINE__);
+		return EINVAL;
+	}
+	for (c = cri; c != NULL; c = c->cri_next) {
+		if (c->cri_alg == CRYPTO_MD5 ||
+		    c->cri_alg == CRYPTO_MD5_HMAC ||
+		    c->cri_alg == CRYPTO_SHA1 ||
+		    c->cri_alg == CRYPTO_SHA1_HMAC ||
+		    c->cri_alg == CRYPTO_NULL_HMAC) {
+			if (macini)
+				return EINVAL;
+			macini = c;
+		} else if (c->cri_alg == CRYPTO_DES_CBC ||
+		    c->cri_alg == CRYPTO_3DES_CBC ||
+		    c->cri_alg == CRYPTO_AES_CBC ||
+		    c->cri_alg == CRYPTO_NULL_CBC) {
+			if (encini)
+				return EINVAL;
+			encini = c;
+		} else {
+			DPRINTF("UNKNOWN c->cri_alg %d\n", encini->cri_alg);
+			return EINVAL;
+		}
+	}
+	if (encini == NULL && macini == NULL)
+		return EINVAL;
+	if (encini) {	
+		/* validate key length */
+		switch (encini->cri_alg) {
+		case CRYPTO_DES_CBC:
+			if (encini->cri_klen != 64)
+				return EINVAL;
+			break;
+		case CRYPTO_3DES_CBC:
+			if (encini->cri_klen != 192) {
+				return EINVAL;
+			}
+			break;
+		case CRYPTO_AES_CBC:
+			if (encini->cri_klen != 128 &&
+			    encini->cri_klen != 192 &&
+			    encini->cri_klen != 256)
+				return EINVAL;
+			break;
+		default:
+			DPRINTF("UNKNOWN encini->cri_alg %d\n", 
+				encini->cri_alg);
+			return EINVAL;
+		}
+	}
+
+	if (sc->sc_sessions == NULL) {
+		ses = sc->sc_sessions = (struct talitos_session *)
+			kmalloc(sizeof(struct talitos_session), SLAB_ATOMIC);
+		if (ses == NULL)
+			return ENOMEM;
+		memset(ses, 0, sizeof(struct talitos_session));
+		sesn = 0;
+		sc->sc_nsessions = 1;
+	} else {
+		for (sesn = 0; sesn < sc->sc_nsessions; sesn++) {
+			if (sc->sc_sessions[sesn].ses_used == 0) {
+				ses = &sc->sc_sessions[sesn];
+				break;
+			}
+		}
+
+		if (ses == NULL) {
+			/* allocating session */
+			sesn = sc->sc_nsessions;
+			ses = (struct talitos_session *) kmalloc(
+				(sesn + 1) * sizeof(struct talitos_session), 
+				SLAB_ATOMIC);
+			if (ses == NULL)
+				return ENOMEM;
+			memset(ses, 0,
+				(sesn + 1) * sizeof(struct talitos_session));
+			memcpy(ses, sc->sc_sessions, 
+				sesn * sizeof(struct talitos_session));
+			memset(sc->sc_sessions, 0,
+				sesn * sizeof(struct talitos_session));
+			kfree(sc->sc_sessions);
+			sc->sc_sessions = ses;
+			ses = &sc->sc_sessions[sesn];
+			sc->sc_nsessions++;
+		}
+	}
+
+	ses->ses_used = 1;
+
+	if (encini) {
+		/* get an IV */
+		/* XXX may read fewer than requested */
+		read_random(ses->ses_iv, sizeof(ses->ses_iv));
+
+		ses->ses_klen = (encini->cri_klen + 7) / 8;
+		memcpy(ses->ses_key, encini->cri_key, ses->ses_klen);
+		if (macini) {
+			/* doing hash on top of cipher */
+			ses->ses_hmac_len = (macini->cri_klen + 7) / 8;
+			memcpy(ses->ses_hmac, macini->cri_key,
+				ses->ses_hmac_len);
+		}
+	} else if (macini) {
+		/* doing hash */
+		ses->ses_klen = (macini->cri_klen + 7) / 8;
+		memcpy(ses->ses_key, macini->cri_key, ses->ses_klen);
+	}
+
+	/* back compat way of determining MSC result len */
+	if (macini) {
+		ses->ses_mlen = macini->cri_mlen;
+		if (ses->ses_mlen == 0) {
+			if (macini->cri_alg == CRYPTO_MD5_HMAC)
+				ses->ses_mlen = MD5_HASH_LEN;
+			else
+				ses->ses_mlen = SHA1_HASH_LEN;
+		}
+	}
+
+	/* really should make up a template td here, 
+	 * and only fill things like i/o and direction in process() */
+
+	/* assign session ID */
+	*sidp = TALITOS_SID(sc->sc_num, sesn);
+	return 0;
+}
+
+/*
+ * Deallocate a session.
+ */
+static int
+talitos_freesession(device_t dev, u_int64_t tid)
+{
+	struct talitos_softc *sc = device_get_softc(dev);
+	int session, ret;
+	u_int32_t sid = ((u_int32_t) tid) & 0xffffffff;
+
+	if (sc == NULL)
+		return EINVAL;
+	session = TALITOS_SESSION(sid);
+	if (session < sc->sc_nsessions) {
+		memset(&sc->sc_sessions[session], 0,
+			sizeof(sc->sc_sessions[session]));
+		ret = 0;
+	} else
+		ret = EINVAL;
+	return ret;
+}
+
+/*
+ * launch device processing - it will come back with done notification 
+ * in the form of an interrupt and/or HDR_DONE_BITS in header 
+ */
+static int 
+talitos_submit(
+	struct talitos_softc *sc,
+	struct talitos_desc *td,
+	int chsel)
+{
+	u_int32_t v;
+
+	v = dma_map_single(NULL, td, sizeof(*td), DMA_TO_DEVICE);
+	talitos_write(sc->sc_base_addr + 
+		chsel*TALITOS_CH_OFFSET + TALITOS_CH_FF, 0);
+	talitos_write(sc->sc_base_addr + 
+		chsel*TALITOS_CH_OFFSET + TALITOS_CH_FF_HI, v);
+	return 0;
+}
+
+static int
+talitos_process(device_t dev, struct cryptop *crp, int hint)
+{
+	int i, err = 0, ivsize;
+	struct talitos_softc *sc = device_get_softc(dev);
+	struct cryptodesc *crd1, *crd2, *maccrd, *enccrd;
+	caddr_t iv;
+	struct talitos_session *ses;
+	struct talitos_desc *td;
+	unsigned long flags;
+	/* descriptor mappings */
+	int hmac_key, hmac_data, cipher_iv, cipher_key, 
+		in_fifo, out_fifo, cipher_iv_out;
+	static int chsel = -1;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	if (crp == NULL || crp->crp_callback == NULL || sc == NULL) {
+		return EINVAL;
+	}
+	crp->crp_etype = 0;
+	if (TALITOS_SESSION(crp->crp_sid) >= sc->sc_nsessions) {
+		return EINVAL;
+	}
+
+	ses = &sc->sc_sessions[TALITOS_SESSION(crp->crp_sid)];
+
+        /* enter the channel scheduler */ 
+	spin_lock_irqsave(&sc->sc_chnfifolock[sc->sc_num_channels], flags);
+
+	/* reuse channel that already had/has requests for the required EU */
+	for (i = 0; i < sc->sc_num_channels; i++) {
+		if (sc->sc_chnlastalg[i] == crp->crp_desc->crd_alg)
+			break;
+	}
+	if (i == sc->sc_num_channels) {
+		/*
+		 * haven't seen this algo the last sc_num_channels or more
+		 * use round robin in this case
+	 	 * nb: sc->sc_num_channels must be power of 2 
+		 */
+		chsel = (chsel + 1) & (sc->sc_num_channels - 1);
+	} else {
+		/*
+		 * matches channel with same target execution unit; 
+		 * use same channel in this case
+		 */
+		chsel = i;
+	}
+	sc->sc_chnlastalg[chsel] = crp->crp_desc->crd_alg;
+
+        /* release the channel scheduler lock */ 
+	spin_unlock_irqrestore(&sc->sc_chnfifolock[sc->sc_num_channels], flags);
+
+	/* acquire the selected channel fifo lock */
+	spin_lock_irqsave(&sc->sc_chnfifolock[chsel], flags);
+
+	/* find and reserve next available descriptor-cryptop pair */
+	for (i = 0; i < sc->sc_chfifo_len; i++) {
+		if (sc->sc_chnfifo[chsel][i].cf_desc.hdr == 0) {
+			/* 
+			 * ensure correct descriptor formation by
+			 * avoiding inadvertently setting "optional" entries
+			 * e.g. not using "optional" dptr2 for MD/HMAC descs
+			 */
+			memset(&sc->sc_chnfifo[chsel][i].cf_desc,
+				0, sizeof(*td));
+			/* reserve it with done notification request bit */
+			sc->sc_chnfifo[chsel][i].cf_desc.hdr |= 
+				TALITOS_DONE_NOTIFY;
+			break;
+		}
+	}
+	spin_unlock_irqrestore(&sc->sc_chnfifolock[chsel], flags);
+
+	if (i == sc->sc_chfifo_len) {
+		/* fifo full */
+		err = ERESTART;
+		goto errout;
+	}
+	
+	td = &sc->sc_chnfifo[chsel][i].cf_desc;
+	sc->sc_chnfifo[chsel][i].cf_crp = crp;
+
+	crd1 = crp->crp_desc;
+	if (crd1 == NULL) {
+		err = EINVAL;
+		goto errout;
+	}
+	crd2 = crd1->crd_next;
+	/* prevent compiler warning */
+	hmac_key = 0;
+	hmac_data = 0;
+	if (crd2 == NULL) {
+		td->hdr |= TD_TYPE_COMMON_NONSNOOP_NO_AFEU;
+		/* assign descriptor dword ptr mappings for this desc. type */
+		cipher_iv = 1;
+		cipher_key = 2;
+		in_fifo = 3;
+		cipher_iv_out = 5;
+		if (crd1->crd_alg == CRYPTO_MD5_HMAC ||
+		    crd1->crd_alg == CRYPTO_SHA1_HMAC ||
+		    crd1->crd_alg == CRYPTO_SHA1 ||
+		    crd1->crd_alg == CRYPTO_MD5) {
+			out_fifo = 5;
+			maccrd = crd1;
+			enccrd = NULL;
+		} else if (crd1->crd_alg == CRYPTO_DES_CBC ||
+		    crd1->crd_alg == CRYPTO_3DES_CBC ||
+		    crd1->crd_alg == CRYPTO_AES_CBC ||
+		    crd1->crd_alg == CRYPTO_ARC4) {
+			out_fifo = 4;
+			maccrd = NULL;
+			enccrd = crd1;
+		} else {
+			DPRINTF("UNKNOWN crd1->crd_alg %d\n", crd1->crd_alg);
+			err = EINVAL;
+			goto errout;
+		}
+	} else {
+		if (sc->sc_desc_types & TALITOS_HAS_DT_IPSEC_ESP) {
+			td->hdr |= TD_TYPE_IPSEC_ESP;
+		} else {
+			DPRINTF("unimplemented: multiple descriptor ipsec\n");
+			err = EINVAL;
+			goto errout;
+		}
+		/* assign descriptor dword ptr mappings for this desc. type */
+		hmac_key = 0;
+		hmac_data = 1;
+		cipher_iv = 2;
+		cipher_key = 3;
+		in_fifo = 4;
+		out_fifo = 5;
+		cipher_iv_out = 6;
+		if ((crd1->crd_alg == CRYPTO_MD5_HMAC ||
+                     crd1->crd_alg == CRYPTO_SHA1_HMAC ||
+                     crd1->crd_alg == CRYPTO_MD5 ||
+                     crd1->crd_alg == CRYPTO_SHA1) &&
+		    (crd2->crd_alg == CRYPTO_DES_CBC ||
+		     crd2->crd_alg == CRYPTO_3DES_CBC ||
+		     crd2->crd_alg == CRYPTO_AES_CBC ||
+		     crd2->crd_alg == CRYPTO_ARC4) &&
+		    ((crd2->crd_flags & CRD_F_ENCRYPT) == 0)) {
+			maccrd = crd1;
+			enccrd = crd2;
+		} else if ((crd1->crd_alg == CRYPTO_DES_CBC ||
+		     crd1->crd_alg == CRYPTO_ARC4 ||
+		     crd1->crd_alg == CRYPTO_3DES_CBC ||
+		     crd1->crd_alg == CRYPTO_AES_CBC) &&
+		    (crd2->crd_alg == CRYPTO_MD5_HMAC ||
+                     crd2->crd_alg == CRYPTO_SHA1_HMAC ||
+                     crd2->crd_alg == CRYPTO_MD5 ||
+                     crd2->crd_alg == CRYPTO_SHA1) &&
+		    (crd1->crd_flags & CRD_F_ENCRYPT)) {
+			enccrd = crd1;
+			maccrd = crd2;
+		} else {
+			/* We cannot order the SEC as requested */
+			printk("%s: cannot do the order\n",
+					device_get_nameunit(sc->sc_cdev));
+			err = EINVAL;
+			goto errout;
+		}
+	}
+	/* assign in_fifo and out_fifo based on input/output struct type */
+	if (crp->crp_flags & CRYPTO_F_SKBUF) {
+		/* using SKB buffers */
+		struct sk_buff *skb = (struct sk_buff *)crp->crp_buf;
+		if (skb_shinfo(skb)->nr_frags) {
+			printk("%s: skb frags unimplemented\n",
+					device_get_nameunit(sc->sc_cdev));
+			err = EINVAL;
+			goto errout;
+		}
+		td->ptr[in_fifo].ptr = dma_map_single(NULL, skb->data, 
+			skb->len, DMA_TO_DEVICE);
+		td->ptr[in_fifo].len = skb->len;
+		td->ptr[out_fifo].ptr = dma_map_single(NULL, skb->data, 
+			skb->len, DMA_TO_DEVICE);
+		td->ptr[out_fifo].len = skb->len;
+		td->ptr[hmac_data].ptr = dma_map_single(NULL, skb->data,
+			skb->len, DMA_TO_DEVICE);
+	} else if (crp->crp_flags & CRYPTO_F_IOV) {
+		/* using IOV buffers */
+		struct uio *uiop = (struct uio *)crp->crp_buf;
+		if (uiop->uio_iovcnt > 1) {
+			printk("%s: iov frags unimplemented\n",
+					device_get_nameunit(sc->sc_cdev));
+			err = EINVAL;
+			goto errout;
+		}
+		td->ptr[in_fifo].ptr = dma_map_single(NULL,
+			uiop->uio_iov->iov_base, crp->crp_ilen, DMA_TO_DEVICE);
+		td->ptr[in_fifo].len = crp->crp_ilen;
+		/* crp_olen is never set; always use crp_ilen */
+		td->ptr[out_fifo].ptr = dma_map_single(NULL,
+			uiop->uio_iov->iov_base,
+			crp->crp_ilen, DMA_TO_DEVICE);
+		td->ptr[out_fifo].len = crp->crp_ilen;
+	} else {
+		/* using contig buffers */
+		td->ptr[in_fifo].ptr = dma_map_single(NULL,
+			crp->crp_buf, crp->crp_ilen, DMA_TO_DEVICE);
+		td->ptr[in_fifo].len = crp->crp_ilen;
+		td->ptr[out_fifo].ptr = dma_map_single(NULL,
+			crp->crp_buf, crp->crp_ilen, DMA_TO_DEVICE);
+		td->ptr[out_fifo].len = crp->crp_ilen;
+	}
+	if (enccrd) {
+		switch (enccrd->crd_alg) {
+		case CRYPTO_3DES_CBC:
+			td->hdr |= TALITOS_MODE0_DEU_3DES;
+			/* FALLTHROUGH */
+		case CRYPTO_DES_CBC:
+			td->hdr |= TALITOS_SEL0_DEU
+				|  TALITOS_MODE0_DEU_CBC;
+			if (enccrd->crd_flags & CRD_F_ENCRYPT)
+				td->hdr |= TALITOS_MODE0_DEU_ENC;
+			ivsize = 2*sizeof(u_int32_t);
+			DPRINTF("%cDES ses %d ch %d len %d\n",
+				(td->hdr & TALITOS_MODE0_DEU_3DES)?'3':'1',
+				(u32)TALITOS_SESSION(crp->crp_sid),
+				chsel, td->ptr[in_fifo].len);
+			break;
+		case CRYPTO_AES_CBC:
+			td->hdr |= TALITOS_SEL0_AESU
+				|  TALITOS_MODE0_AESU_CBC;
+			if (enccrd->crd_flags & CRD_F_ENCRYPT)
+				td->hdr |= TALITOS_MODE0_AESU_ENC;
+			ivsize = 4*sizeof(u_int32_t);
+			DPRINTF("AES  ses %d ch %d len %d\n",
+				(u32)TALITOS_SESSION(crp->crp_sid),
+				chsel, td->ptr[in_fifo].len);
+			break;
+		default:
+			printk("%s: unimplemented enccrd->crd_alg %d\n",
+					device_get_nameunit(sc->sc_cdev), enccrd->crd_alg);
+			err = EINVAL;
+			goto errout;
+		}
+		/*
+		 * Setup encrypt/decrypt state.  When using basic ops
+		 * we can't use an inline IV because hash/crypt offset
+		 * must be from the end of the IV to the start of the
+		 * crypt data and this leaves out the preceding header
+		 * from the hash calculation.  Instead we place the IV
+		 * in the state record and set the hash/crypt offset to
+		 * copy both the header+IV.
+		 */
+		if (enccrd->crd_flags & CRD_F_ENCRYPT) {
+			td->hdr |= TALITOS_DIR_OUTBOUND; 
+			if (enccrd->crd_flags & CRD_F_IV_EXPLICIT)
+				iv = enccrd->crd_iv;
+			else
+				iv = (caddr_t) ses->ses_iv;
+			if ((enccrd->crd_flags & CRD_F_IV_PRESENT) == 0) {
+				crypto_copyback(crp->crp_flags, crp->crp_buf,
+				    enccrd->crd_inject, ivsize, iv);
+			}
+		} else {
+			td->hdr |= TALITOS_DIR_INBOUND; 
+			if (enccrd->crd_flags & CRD_F_IV_EXPLICIT) {
+				iv = enccrd->crd_iv;
+				bcopy(enccrd->crd_iv, iv, ivsize);
+			} else {
+				iv = (caddr_t) ses->ses_iv;
+				crypto_copydata(crp->crp_flags, crp->crp_buf,
+				    enccrd->crd_inject, ivsize, iv);
+			}
+		}
+		td->ptr[cipher_iv].ptr = dma_map_single(NULL, iv, ivsize, 
+			DMA_TO_DEVICE);
+		td->ptr[cipher_iv].len = ivsize;
+		/*
+		 * we don't need the cipher iv out length/pointer
+		 * field to do ESP IPsec. Therefore we set the len field as 0,
+		 * which tells the SEC not to do anything with this len/ptr
+		 * field. Previously, when length/pointer as pointing to iv,
+		 * it gave us corruption of packets.
+		 */
+		td->ptr[cipher_iv_out].len = 0;
+	}
+	if (enccrd && maccrd) {
+		/* this is ipsec only for now */
+		td->hdr |= TALITOS_SEL1_MDEU
+			|  TALITOS_MODE1_MDEU_INIT
+			|  TALITOS_MODE1_MDEU_PAD;
+		switch (maccrd->crd_alg) {
+			case	CRYPTO_MD5:	
+				td->hdr |= TALITOS_MODE1_MDEU_MD5;
+				break;
+			case	CRYPTO_MD5_HMAC:	
+				td->hdr |= TALITOS_MODE1_MDEU_MD5_HMAC;
+				break;
+			case	CRYPTO_SHA1:	
+				td->hdr |= TALITOS_MODE1_MDEU_SHA1;
+				break;
+			case	CRYPTO_SHA1_HMAC:	
+				td->hdr |= TALITOS_MODE1_MDEU_SHA1_HMAC;
+				break;
+			default:
+				/* We cannot order the SEC as requested */
+				printk("%s: cannot do the order\n",
+						device_get_nameunit(sc->sc_cdev));
+				err = EINVAL;
+				goto errout;
+		}
+		if ((maccrd->crd_alg == CRYPTO_MD5_HMAC) ||
+		   (maccrd->crd_alg == CRYPTO_SHA1_HMAC)) {
+			/*
+			 * The offset from hash data to the start of
+			 * crypt data is the difference in the skips.
+			 */
+			/* ipsec only for now */
+			td->ptr[hmac_key].ptr = dma_map_single(NULL, 
+				ses->ses_hmac, ses->ses_hmac_len, DMA_TO_DEVICE);
+			td->ptr[hmac_key].len = ses->ses_hmac_len;
+			td->ptr[in_fifo].ptr  += enccrd->crd_skip;
+			td->ptr[in_fifo].len  =  enccrd->crd_len;
+			td->ptr[out_fifo].ptr += enccrd->crd_skip;
+			td->ptr[out_fifo].len =  enccrd->crd_len;
+			/* bytes of HMAC to postpend to ciphertext */
+			td->ptr[out_fifo].extent =  ses->ses_mlen;
+			td->ptr[hmac_data].ptr += maccrd->crd_skip; 
+			td->ptr[hmac_data].len = enccrd->crd_skip - maccrd->crd_skip;
+		}
+		if (enccrd->crd_flags & CRD_F_KEY_EXPLICIT) {
+			printk("%s: CRD_F_KEY_EXPLICIT unimplemented\n",
+					device_get_nameunit(sc->sc_cdev));
+		}
+	}
+	if (!enccrd && maccrd) {
+		/* single MD5 or SHA */
+		td->hdr |= TALITOS_SEL0_MDEU
+				|  TALITOS_MODE0_MDEU_INIT
+				|  TALITOS_MODE0_MDEU_PAD;
+		switch (maccrd->crd_alg) {
+			case	CRYPTO_MD5:	
+				td->hdr |= TALITOS_MODE0_MDEU_MD5;
+				DPRINTF("MD5  ses %d ch %d len %d\n",
+					(u32)TALITOS_SESSION(crp->crp_sid), 
+					chsel, td->ptr[in_fifo].len);
+				break;
+			case	CRYPTO_MD5_HMAC:	
+				td->hdr |= TALITOS_MODE0_MDEU_MD5_HMAC;
+				break;
+			case	CRYPTO_SHA1:	
+				td->hdr |= TALITOS_MODE0_MDEU_SHA1;
+				DPRINTF("SHA1 ses %d ch %d len %d\n",
+					(u32)TALITOS_SESSION(crp->crp_sid), 
+					chsel, td->ptr[in_fifo].len);
+				break;
+			case	CRYPTO_SHA1_HMAC:	
+				td->hdr |= TALITOS_MODE0_MDEU_SHA1_HMAC;
+				break;
+			default:
+				/* We cannot order the SEC as requested */
+				DPRINTF("cannot do the order\n");
+				err = EINVAL;
+				goto errout;
+		}
+
+		if (crp->crp_flags & CRYPTO_F_IOV)
+			td->ptr[out_fifo].ptr += maccrd->crd_inject;
+
+		if ((maccrd->crd_alg == CRYPTO_MD5_HMAC) ||
+		   (maccrd->crd_alg == CRYPTO_SHA1_HMAC)) {
+			td->ptr[hmac_key].ptr = dma_map_single(NULL, 
+				ses->ses_hmac, ses->ses_hmac_len, 
+				DMA_TO_DEVICE);
+			td->ptr[hmac_key].len = ses->ses_hmac_len;
+		}
+	} 
+	else {
+		/* using process key (session data has duplicate) */
+		td->ptr[cipher_key].ptr = dma_map_single(NULL, 
+			enccrd->crd_key, (enccrd->crd_klen + 7) / 8, 
+			DMA_TO_DEVICE);
+		td->ptr[cipher_key].len = (enccrd->crd_klen + 7) / 8;
+	}
+	/* descriptor complete - GO! */
+	return talitos_submit(sc, td, chsel);
+
+errout:
+	if (err != ERESTART) {
+		crp->crp_etype = err;
+		crypto_done(crp);
+	}
+	return err;
+}
+
+/* go through all channels descriptors, notifying OCF what has 
+ * _and_hasn't_ successfully completed and reset the device 
+ * (otherwise it's up to decoding desc hdrs!)
+ */
+static void talitos_errorprocessing(struct talitos_softc *sc)
+{
+	unsigned long flags;
+	int i, j;
+
+	/* disable further scheduling until under control */
+	spin_lock_irqsave(&sc->sc_chnfifolock[sc->sc_num_channels], flags);
+
+	if (debug) dump_talitos_status(sc);
+	/* go through descriptors, try and salvage those successfully done, 
+	 * and EIO those that weren't
+	 */
+	for (i = 0; i < sc->sc_num_channels; i++) {
+		spin_lock_irqsave(&sc->sc_chnfifolock[i], flags);
+		for (j = 0; j < sc->sc_chfifo_len; j++) {
+			if (sc->sc_chnfifo[i][j].cf_desc.hdr) {
+				if ((sc->sc_chnfifo[i][j].cf_desc.hdr 
+					& TALITOS_HDR_DONE_BITS) 
+					!= TALITOS_HDR_DONE_BITS) {
+					/* this one didn't finish */
+					/* signify in crp->etype */
+					sc->sc_chnfifo[i][j].cf_crp->crp_etype 
+						= EIO;
+				}
+			} else
+				continue; /* free entry */
+			/* either way, notify ocf */
+			crypto_done(sc->sc_chnfifo[i][j].cf_crp);
+			/* and tag it available again
+			 *
+			 * memset to ensure correct descriptor formation by
+			 * avoiding inadvertently setting "optional" entries
+			 * e.g. not using "optional" dptr2 MD/HMAC processing
+			 */
+			memset(&sc->sc_chnfifo[i][j].cf_desc,
+				0, sizeof(struct talitos_desc));
+		}
+		spin_unlock_irqrestore(&sc->sc_chnfifolock[i], flags);
+	}
+	/* reset and initialize the SEC h/w device */
+	talitos_reset_device(sc);
+	talitos_init_device(sc);
+#ifdef CONFIG_OCF_RANDOMHARVEST
+	if (sc->sc_exec_units & TALITOS_HAS_EU_RNG)
+		talitos_rng_init(sc);
+#endif
+
+	/* Okay. Stand by. */
+	spin_unlock_irqrestore(&sc->sc_chnfifolock[sc->sc_num_channels], flags);
+
+	return;
+}
+
+/* go through all channels descriptors, notifying OCF what's been done */
+static void talitos_doneprocessing(struct talitos_softc *sc)
+{
+	unsigned long flags;
+	int i, j;
+
+	/* go through descriptors looking for done bits */
+	for (i = 0; i < sc->sc_num_channels; i++) {
+		spin_lock_irqsave(&sc->sc_chnfifolock[i], flags);
+		for (j = 0; j < sc->sc_chfifo_len; j++) {
+			/* descriptor has done bits set? */
+			if ((sc->sc_chnfifo[i][j].cf_desc.hdr 
+				& TALITOS_HDR_DONE_BITS) 
+				== TALITOS_HDR_DONE_BITS) {
+				/* notify ocf */
+				crypto_done(sc->sc_chnfifo[i][j].cf_crp);
+				/* and tag it available again
+				 *
+				 * memset to ensure correct descriptor formation by
+				 * avoiding inadvertently setting "optional" entries
+				 * e.g. not using "optional" dptr2 MD/HMAC processing
+				 */
+				memset(&sc->sc_chnfifo[i][j].cf_desc,
+					0, sizeof(struct talitos_desc));
+			}
+		}
+		spin_unlock_irqrestore(&sc->sc_chnfifolock[i], flags);
+	}
+	return;
+}
+
+static irqreturn_t
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19)
+talitos_intr(int irq, void *arg)
+#else
+talitos_intr(int irq, void *arg, struct pt_regs *regs)
+#endif
+{
+	struct talitos_softc *sc = arg;
+	u_int32_t v, v_hi;
+	
+	/* ack */
+	v = talitos_read(sc->sc_base_addr + TALITOS_ISR);
+	v_hi = talitos_read(sc->sc_base_addr + TALITOS_ISR_HI);
+	talitos_write(sc->sc_base_addr + TALITOS_ICR, v);
+	talitos_write(sc->sc_base_addr + TALITOS_ICR_HI, v_hi);
+
+	if (unlikely(v & TALITOS_ISR_ERROR)) {
+		/* Okay, Houston, we've had a problem here. */
+		printk(KERN_DEBUG "%s: got error interrupt - ISR 0x%08x_%08x\n",
+				device_get_nameunit(sc->sc_cdev), v, v_hi);
+		talitos_errorprocessing(sc);
+	} else
+	if (likely(v & TALITOS_ISR_DONE)) {
+		talitos_doneprocessing(sc);
+	}
+	return IRQ_HANDLED;
+}
+
+/*
+ * Initialize registers we need to touch only once.
+ */
+static void
+talitos_init_device(struct talitos_softc *sc)
+{
+	u_int32_t v;
+	int i;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	/* init all channels */
+	for (i = 0; i < sc->sc_num_channels; i++) {
+		v = talitos_read(sc->sc_base_addr + 
+			i*TALITOS_CH_OFFSET + TALITOS_CH_CCCR_HI);
+		v |= TALITOS_CH_CCCR_HI_CDWE
+		  |  TALITOS_CH_CCCR_HI_CDIE;  /* invoke interrupt if done */
+		talitos_write(sc->sc_base_addr + 
+			i*TALITOS_CH_OFFSET + TALITOS_CH_CCCR_HI, v);
+	}
+	/* enable all interrupts */
+	v = talitos_read(sc->sc_base_addr + TALITOS_IMR);
+	v |= TALITOS_IMR_ALL;
+	talitos_write(sc->sc_base_addr + TALITOS_IMR, v);
+	v = talitos_read(sc->sc_base_addr + TALITOS_IMR_HI);
+	v |= TALITOS_IMR_HI_ERRONLY;
+	talitos_write(sc->sc_base_addr + TALITOS_IMR_HI, v);
+	return;
+}
+
+/*
+ * set the master reset bit on the device.
+ */
+static void
+talitos_reset_device_master(struct talitos_softc *sc)
+{
+	u_int32_t v;
+
+	/* Reset the device by writing 1 to MCR:SWR and waiting 'til cleared */
+	v = talitos_read(sc->sc_base_addr + TALITOS_MCR);
+	talitos_write(sc->sc_base_addr + TALITOS_MCR, v | TALITOS_MCR_SWR);
+
+	while (talitos_read(sc->sc_base_addr + TALITOS_MCR) & TALITOS_MCR_SWR)
+		cpu_relax();
+
+	return;
+}
+
+/*
+ * Resets the device.  Values in the registers are left as is
+ * from the reset (i.e. initial values are assigned elsewhere).
+ */
+static void
+talitos_reset_device(struct talitos_softc *sc)
+{
+	u_int32_t v;
+	int i;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	/*
+	 * Master reset
+	 * errata documentation: warning: certain SEC interrupts 
+	 * are not fully cleared by writing the MCR:SWR bit, 
+	 * set bit twice to completely reset 
+	 */
+	talitos_reset_device_master(sc);	/* once */
+	talitos_reset_device_master(sc);	/* and once again */
+	
+	/* reset all channels */
+	for (i = 0; i < sc->sc_num_channels; i++) {
+		v = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET +
+			TALITOS_CH_CCCR);
+		talitos_write(sc->sc_base_addr + i*TALITOS_CH_OFFSET +
+			TALITOS_CH_CCCR, v | TALITOS_CH_CCCR_RESET);
+	}
+}
+
+/* Set up the crypto device structure, private data,
+ * and anything else we need before we start */
+#ifdef CONFIG_PPC_MERGE
+static int talitos_probe(struct of_device *ofdev, const struct of_device_id *match)
+#else
+static int talitos_probe(struct platform_device *pdev)
+#endif
+{
+	struct talitos_softc *sc = NULL;
+	struct resource *r;
+#ifdef CONFIG_PPC_MERGE
+	struct device *device = &ofdev->dev;
+	struct device_node *np = ofdev->node;
+	const unsigned int *prop;
+	int err;
+	struct resource res;
+#endif
+	static int num_chips = 0;
+	int rc;
+	int i;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+
+	sc = (struct talitos_softc *) kmalloc(sizeof(*sc), GFP_KERNEL);
+	if (!sc)
+		return -ENOMEM;
+	memset(sc, 0, sizeof(*sc));
+
+	softc_device_init(sc, DRV_NAME, num_chips, talitos_methods);
+
+	sc->sc_irq = -1;
+	sc->sc_cid = -1;
+#ifndef CONFIG_PPC_MERGE
+	sc->sc_dev = pdev;
+#endif
+	sc->sc_num = num_chips++;
+
+#ifdef CONFIG_PPC_MERGE
+	dev_set_drvdata(device, sc);
+#else
+	platform_set_drvdata(sc->sc_dev, sc);
+#endif
+
+	/* get the irq line */
+#ifdef CONFIG_PPC_MERGE
+	err = of_address_to_resource(np, 0, &res);
+	if (err)
+		return -EINVAL;
+	r = &res;
+
+	sc->sc_irq = irq_of_parse_and_map(np, 0);
+#else
+	/* get a pointer to the register memory */
+	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+	sc->sc_irq = platform_get_irq(pdev, 0);
+#endif
+	rc = request_irq(sc->sc_irq, talitos_intr, 0,
+			device_get_nameunit(sc->sc_cdev), sc);
+	if (rc) {
+		printk(KERN_ERR "%s: failed to hook irq %d\n", 
+				device_get_nameunit(sc->sc_cdev), sc->sc_irq);
+		sc->sc_irq = -1;
+		goto out;
+	}
+
+	sc->sc_base_addr = (ocf_iomem_t) ioremap(r->start, (r->end - r->start));
+	if (!sc->sc_base_addr) {
+		printk(KERN_ERR "%s: failed to ioremap\n",
+				device_get_nameunit(sc->sc_cdev));
+		goto out;
+	}
+
+	/* figure out our SEC's properties and capabilities */
+	sc->sc_chiprev = (u64)talitos_read(sc->sc_base_addr + TALITOS_ID) << 32
+		 | talitos_read(sc->sc_base_addr + TALITOS_ID_HI);
+	DPRINTF("sec id 0x%llx\n", sc->sc_chiprev);
+
+#ifdef CONFIG_PPC_MERGE
+	/* get SEC properties from device tree, defaulting to SEC 2.0 */
+
+	prop = of_get_property(np, "num-channels", NULL);
+	sc->sc_num_channels = prop ? *prop : TALITOS_NCHANNELS_SEC_2_0;
+
+	prop = of_get_property(np, "channel-fifo-len", NULL);
+	sc->sc_chfifo_len = prop ? *prop : TALITOS_CHFIFOLEN_SEC_2_0;
+
+	prop = of_get_property(np, "exec-units-mask", NULL);
+	sc->sc_exec_units = prop ? *prop : TALITOS_HAS_EUS_SEC_2_0;
+
+	prop = of_get_property(np, "descriptor-types-mask", NULL);
+	sc->sc_desc_types = prop ? *prop : TALITOS_HAS_DESCTYPES_SEC_2_0;
+#else
+	/* bulk should go away with openfirmware flat device tree support */
+	if (sc->sc_chiprev & TALITOS_ID_SEC_2_0) {
+		sc->sc_num_channels = TALITOS_NCHANNELS_SEC_2_0;
+		sc->sc_chfifo_len = TALITOS_CHFIFOLEN_SEC_2_0;
+		sc->sc_exec_units = TALITOS_HAS_EUS_SEC_2_0;
+		sc->sc_desc_types = TALITOS_HAS_DESCTYPES_SEC_2_0;
+	} else {
+		printk(KERN_ERR "%s: failed to id device\n",
+				device_get_nameunit(sc->sc_cdev));
+		goto out;
+	}
+#endif
+
+	/* + 1 is for the meta-channel lock used by the channel scheduler */
+	sc->sc_chnfifolock = (spinlock_t *) kmalloc(
+		(sc->sc_num_channels + 1) * sizeof(spinlock_t), GFP_KERNEL);
+	if (!sc->sc_chnfifolock)
+		goto out;
+	for (i = 0; i < sc->sc_num_channels + 1; i++) {
+		spin_lock_init(&sc->sc_chnfifolock[i]);
+	}
+
+	sc->sc_chnlastalg = (int *) kmalloc(
+		sc->sc_num_channels * sizeof(int), GFP_KERNEL);
+	if (!sc->sc_chnlastalg)
+		goto out;
+	memset(sc->sc_chnlastalg, 0, sc->sc_num_channels * sizeof(int));
+
+	sc->sc_chnfifo = (struct desc_cryptop_pair **) kmalloc(
+		sc->sc_num_channels * sizeof(struct desc_cryptop_pair *), 
+		GFP_KERNEL);
+	if (!sc->sc_chnfifo)
+		goto out;
+	for (i = 0; i < sc->sc_num_channels; i++) {
+		sc->sc_chnfifo[i] = (struct desc_cryptop_pair *) kmalloc(
+			sc->sc_chfifo_len * sizeof(struct desc_cryptop_pair), 
+			GFP_KERNEL);
+		if (!sc->sc_chnfifo[i])
+			goto out;
+		memset(sc->sc_chnfifo[i], 0, 
+			sc->sc_chfifo_len * sizeof(struct desc_cryptop_pair));
+	}
+
+	/* reset and initialize the SEC h/w device */
+	talitos_reset_device(sc);
+	talitos_init_device(sc);
+
+	sc->sc_cid = crypto_get_driverid(softc_get_device(sc),CRYPTOCAP_F_HARDWARE);
+	if (sc->sc_cid < 0) {
+		printk(KERN_ERR "%s: could not get crypto driver id\n",
+				device_get_nameunit(sc->sc_cdev));
+		goto out;
+	}
+
+	/* register algorithms with the framework */
+	printk("%s:", device_get_nameunit(sc->sc_cdev));
+
+	if (sc->sc_exec_units & TALITOS_HAS_EU_RNG)  {
+		printk(" rng");
+#ifdef CONFIG_OCF_RANDOMHARVEST
+		talitos_rng_init(sc);
+		crypto_rregister(sc->sc_cid, talitos_read_random, sc);
+#endif
+	}
+	if (sc->sc_exec_units & TALITOS_HAS_EU_DEU) {
+		printk(" des/3des");
+		crypto_register(sc->sc_cid, CRYPTO_3DES_CBC, 0, 0);
+		crypto_register(sc->sc_cid, CRYPTO_DES_CBC, 0, 0);
+	}
+	if (sc->sc_exec_units & TALITOS_HAS_EU_AESU) {
+		printk(" aes");
+		crypto_register(sc->sc_cid, CRYPTO_AES_CBC, 0, 0);
+	}
+	if (sc->sc_exec_units & TALITOS_HAS_EU_MDEU) {
+		printk(" md5");
+		crypto_register(sc->sc_cid, CRYPTO_MD5, 0, 0);
+		/* HMAC support only with IPsec for now */
+		crypto_register(sc->sc_cid, CRYPTO_MD5_HMAC, 0, 0);
+		printk(" sha1");
+		crypto_register(sc->sc_cid, CRYPTO_SHA1, 0, 0);
+		/* HMAC support only with IPsec for now */
+		crypto_register(sc->sc_cid, CRYPTO_SHA1_HMAC, 0, 0);
+	}
+	printk("\n");
+	return 0;
+
+out:
+#ifndef CONFIG_PPC_MERGE
+	talitos_remove(pdev);
+#endif
+	return -ENOMEM;
+}
+
+#ifdef CONFIG_PPC_MERGE
+static int talitos_remove(struct of_device *ofdev)
+#else
+static int talitos_remove(struct platform_device *pdev)
+#endif
+{
+#ifdef CONFIG_PPC_MERGE
+	struct talitos_softc *sc = dev_get_drvdata(&ofdev->dev);
+#else
+	struct talitos_softc *sc = platform_get_drvdata(pdev);
+#endif
+	int i;
+
+	DPRINTF("%s()\n", __FUNCTION__);
+	if (sc->sc_cid >= 0)
+		crypto_unregister_all(sc->sc_cid);
+	if (sc->sc_chnfifo) {
+		for (i = 0; i < sc->sc_num_channels; i++)
+			if (sc->sc_chnfifo[i])
+				kfree(sc->sc_chnfifo[i]);
+		kfree(sc->sc_chnfifo);
+	}
+	if (sc->sc_chnlastalg)
+		kfree(sc->sc_chnlastalg);
+	if (sc->sc_chnfifolock)
+		kfree(sc->sc_chnfifolock);
+	if (sc->sc_irq != -1)
+		free_irq(sc->sc_irq, sc);
+	if (sc->sc_base_addr)
+		iounmap((void *) sc->sc_base_addr);
+	kfree(sc);
+	return 0;
+}
+
+#ifdef CONFIG_PPC_MERGE
+static struct of_device_id talitos_match[] = {
+	{
+		.type = "crypto",
+		.compatible = "talitos",
+	},
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, talitos_match);
+
+static struct of_platform_driver talitos_driver = {
+	.name		= DRV_NAME,
+	.match_table	= talitos_match,
+	.probe		= talitos_probe,
+	.remove		= talitos_remove,
+};
+
+static int __init talitos_init(void)
+{
+	return of_register_platform_driver(&talitos_driver);
+}
+
+static void __exit talitos_exit(void)
+{
+	of_unregister_platform_driver(&talitos_driver);
+}
+#else
+/* Structure for a platform device driver */
+static struct platform_driver talitos_driver = {
+	.probe = talitos_probe,
+	.remove = talitos_remove,
+	.driver = {
+		.name = "fsl-sec2",
+	}
+};
+
+static int __init talitos_init(void)
+{
+	return platform_driver_register(&talitos_driver);
+}
+
+static void __exit talitos_exit(void)
+{
+	platform_driver_unregister(&talitos_driver);
+}
+#endif
+
+module_init(talitos_init);
+module_exit(talitos_exit);
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("kim.phillips@freescale.com");
+MODULE_DESCRIPTION("OCF driver for Freescale SEC (talitos)");
diff -Nur linux-2.6.29.1.orig/crypto/ocf/talitos/talitos_dev.h linux-2.6.29.1/crypto/ocf/talitos/talitos_dev.h
--- linux-2.6.29.1.orig/crypto/ocf/talitos/talitos_dev.h	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/talitos/talitos_dev.h	2009-04-20 20:01:21.636564372 +0200
@@ -0,0 +1,277 @@
+/*
+ * Freescale SEC (talitos) device dependent data structures
+ *
+ * Copyright (c) 2006 Freescale Semiconductor, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+/* device ID register values */
+#define TALITOS_ID_SEC_2_0	0x40
+#define TALITOS_ID_SEC_2_1	0x40 /* cross ref with IP block revision reg */
+
+/*
+ * following num_channels, channel-fifo-depth, exec-unit-mask, and 
+ * descriptor-types-mask are for forward-compatibility with openfirmware
+ * flat device trees
+ */
+
+/*
+ *  num_channels : the number of channels available in each SEC version.
+ */
+
+/* n.b. this driver requires these values be a power of 2 */
+#define TALITOS_NCHANNELS_SEC_1_0	4
+#define TALITOS_NCHANNELS_SEC_1_2	1
+#define TALITOS_NCHANNELS_SEC_2_0	4
+#define TALITOS_NCHANNELS_SEC_2_01	4
+#define TALITOS_NCHANNELS_SEC_2_1	4
+#define TALITOS_NCHANNELS_SEC_2_4	4
+
+/*
+ *  channel-fifo-depth : The number of descriptor
+ *  pointers a channel fetch fifo can hold.
+ */
+#define TALITOS_CHFIFOLEN_SEC_1_0	1
+#define TALITOS_CHFIFOLEN_SEC_1_2	1
+#define TALITOS_CHFIFOLEN_SEC_2_0	24
+#define TALITOS_CHFIFOLEN_SEC_2_01	24
+#define TALITOS_CHFIFOLEN_SEC_2_1	24
+#define TALITOS_CHFIFOLEN_SEC_2_4	24
+
+/* 
+ *  exec-unit-mask : The bitmask representing what Execution Units (EUs)
+ *  are available. EU information should be encoded following the SEC's 
+ *  EU_SEL0 bitfield documentation, i.e. as follows:
+ * 
+ *    bit 31 = set if SEC permits no-EU selection (should be always set)
+ *    bit 30 = set if SEC has the ARC4 EU (AFEU)
+ *    bit 29 = set if SEC has the des/3des EU (DEU)
+ *    bit 28 = set if SEC has the message digest EU (MDEU)
+ *    bit 27 = set if SEC has the random number generator EU (RNG)
+ *    bit 26 = set if SEC has the public key EU (PKEU)
+ *    bit 25 = set if SEC has the aes EU (AESU)
+ *    bit 24 = set if SEC has the Kasumi EU (KEU)
+ * 
+ */
+#define TALITOS_HAS_EU_NONE		(1<<0)
+#define TALITOS_HAS_EU_AFEU		(1<<1)
+#define TALITOS_HAS_EU_DEU		(1<<2)
+#define TALITOS_HAS_EU_MDEU		(1<<3)
+#define TALITOS_HAS_EU_RNG		(1<<4)
+#define TALITOS_HAS_EU_PKEU		(1<<5)
+#define TALITOS_HAS_EU_AESU		(1<<6)
+#define TALITOS_HAS_EU_KEU		(1<<7)
+
+/* the corresponding masks for each SEC version */
+#define TALITOS_HAS_EUS_SEC_1_0		0x7f
+#define TALITOS_HAS_EUS_SEC_1_2		0x4d
+#define TALITOS_HAS_EUS_SEC_2_0		0x7f
+#define TALITOS_HAS_EUS_SEC_2_01	0x7f
+#define TALITOS_HAS_EUS_SEC_2_1		0xff
+#define TALITOS_HAS_EUS_SEC_2_4		0x7f
+
+/*
+ *  descriptor-types-mask : The bitmask representing what descriptors
+ *  are available. Descriptor type information should be encoded 
+ *  following the SEC's Descriptor Header Dword DESC_TYPE field 
+ *  documentation, i.e. as follows:
+ *
+ *    bit 0  = set if SEC supports the aesu_ctr_nonsnoop desc. type
+ *    bit 1  = set if SEC supports the ipsec_esp descriptor type
+ *    bit 2  = set if SEC supports the common_nonsnoop desc. type
+ *    bit 3  = set if SEC supports the 802.11i AES ccmp desc. type
+ *    bit 4  = set if SEC supports the hmac_snoop_no_afeu desc. type
+ *    bit 5  = set if SEC supports the srtp descriptor type
+ *    bit 6  = set if SEC supports the non_hmac_snoop_no_afeu desc.type
+ *    bit 7  = set if SEC supports the pkeu_assemble descriptor type
+ *    bit 8  = set if SEC supports the aesu_key_expand_output desc.type
+ *    bit 9  = set if SEC supports the pkeu_ptmul descriptor type
+ *    bit 10 = set if SEC supports the common_nonsnoop_afeu desc. type
+ *    bit 11 = set if SEC supports the pkeu_ptadd_dbl descriptor type
+ *
+ *  ..and so on and so forth.
+ */
+#define TALITOS_HAS_DT_AESU_CTR_NONSNOOP	(1<<0)
+#define TALITOS_HAS_DT_IPSEC_ESP		(1<<1)
+#define TALITOS_HAS_DT_COMMON_NONSNOOP		(1<<2)
+
+/* the corresponding masks for each SEC version */
+#define TALITOS_HAS_DESCTYPES_SEC_2_0	0x01010ebf
+#define TALITOS_HAS_DESCTYPES_SEC_2_1	0x012b0ebf
+
+/* 
+ * a TALITOS_xxx_HI address points to the low data bits (32-63) of the register
+ */
+
+/* global register offset addresses */
+#define TALITOS_ID		0x1020
+#define TALITOS_ID_HI		0x1024
+#define TALITOS_MCR		0x1030		/* master control register */
+#define TALITOS_MCR_HI		0x1038		/* master control register */
+#define TALITOS_MCR_SWR		0x1
+#define TALITOS_IMR		0x1008		/* interrupt mask register */
+#define TALITOS_IMR_ALL		0x00010fff	/* enable all interrupts mask */
+#define TALITOS_IMR_ERRONLY	0x00010aaa	/* enable error interrupts */
+#define TALITOS_IMR_HI		0x100C		/* interrupt mask register */
+#define TALITOS_IMR_HI_ALL	0x00323333	/* enable all interrupts mask */
+#define TALITOS_IMR_HI_ERRONLY	0x00222222	/* enable error interrupts */
+#define TALITOS_ISR		0x1010		/* interrupt status register */
+#define TALITOS_ISR_ERROR	0x00010faa	/* errors mask */
+#define TALITOS_ISR_DONE	0x00000055	/* channel(s) done mask */
+#define TALITOS_ISR_HI		0x1014		/* interrupt status register */
+#define TALITOS_ICR		0x1018		/* interrupt clear register */
+#define TALITOS_ICR_HI		0x101C		/* interrupt clear register */
+
+/* channel register address stride */
+#define TALITOS_CH_OFFSET	0x100
+
+/* channel register offset addresses and bits */
+#define TALITOS_CH_CCCR		0x1108	/* Crypto-Channel Config Register */
+#define TALITOS_CH_CCCR_RESET	0x1	/* Channel Reset bit */
+#define TALITOS_CH_CCCR_HI	0x110c	/* Crypto-Channel Config Register */
+#define TALITOS_CH_CCCR_HI_CDWE	0x10	/* Channel done writeback enable bit */
+#define TALITOS_CH_CCCR_HI_NT	0x4	/* Notification type bit */
+#define TALITOS_CH_CCCR_HI_CDIE	0x2	/* Channel Done Interrupt Enable bit */
+#define TALITOS_CH_CCPSR	0x1110	/* Crypto-Channel Pointer Status Reg */
+#define TALITOS_CH_CCPSR_HI	0x1114	/* Crypto-Channel Pointer Status Reg */
+#define TALITOS_CH_FF		0x1148	/* Fetch FIFO */
+#define TALITOS_CH_FF_HI	0x114c	/* Fetch FIFO's FETCH_ADRS */
+#define TALITOS_CH_CDPR		0x1140	/* Crypto-Channel Pointer Status Reg */
+#define TALITOS_CH_CDPR_HI	0x1144	/* Crypto-Channel Pointer Status Reg */
+#define TALITOS_CH_DESCBUF	0x1180	/* (thru 11bf) Crypto-Channel 
+					 * Descriptor Buffer (debug) */
+
+/* execution unit register offset addresses and bits */
+#define TALITOS_DEUSR		0x2028	/* DEU status register */
+#define TALITOS_DEUSR_HI	0x202c	/* DEU status register */
+#define TALITOS_DEUISR		0x2030	/* DEU interrupt status register */
+#define TALITOS_DEUISR_HI	0x2034	/* DEU interrupt status register */
+#define TALITOS_DEUICR		0x2038	/* DEU interrupt control register */
+#define TALITOS_DEUICR_HI	0x203c	/* DEU interrupt control register */
+#define TALITOS_AESUISR		0x4030	/* AESU interrupt status register */
+#define TALITOS_AESUISR_HI	0x4034	/* AESU interrupt status register */
+#define TALITOS_AESUICR		0x4038	/* AESU interrupt control register */
+#define TALITOS_AESUICR_HI	0x403c	/* AESU interrupt control register */
+#define TALITOS_MDEUISR		0x6030	/* MDEU interrupt status register */
+#define TALITOS_MDEUISR_HI	0x6034	/* MDEU interrupt status register */
+#define TALITOS_RNGSR		0xa028	/* RNG status register */
+#define TALITOS_RNGSR_HI	0xa02c	/* RNG status register */
+#define TALITOS_RNGSR_HI_RD	0x1	/* RNG Reset done */
+#define TALITOS_RNGSR_HI_OFL	0xff0000/* number of dwords in RNG output FIFO*/
+#define TALITOS_RNGDSR		0xa010	/* RNG data size register */
+#define TALITOS_RNGDSR_HI	0xa014	/* RNG data size register */
+#define TALITOS_RNG_FIFO	0xa800	/* RNG FIFO - pool of random numbers */
+#define TALITOS_RNGISR		0xa030	/* RNG Interrupt status register */
+#define TALITOS_RNGISR_HI	0xa034	/* RNG Interrupt status register */
+#define TALITOS_RNGRCR		0xa018	/* RNG Reset control register */
+#define TALITOS_RNGRCR_HI	0xa01c	/* RNG Reset control register */
+#define TALITOS_RNGRCR_HI_SR	0x1	/* RNG RNGRCR:Software Reset */
+
+/* descriptor pointer entry */
+struct talitos_desc_ptr {
+	u16	len;		/* length */
+	u8	extent;		/* jump (to s/g link table) and extent */
+	u8	res;		/* reserved */
+	u32	ptr;		/* pointer */
+};
+
+/* descriptor */
+struct talitos_desc {
+	u32	hdr;				/* header */
+	u32	res;				/* reserved */
+	struct talitos_desc_ptr		ptr[7];	/* ptr/len pair array */
+};
+
+/* talitos descriptor header (hdr) bits */
+
+/* primary execution unit select */
+#define	TALITOS_SEL0_AFEU	0x10000000
+#define	TALITOS_SEL0_DEU	0x20000000
+#define	TALITOS_SEL0_MDEU	0x30000000
+#define	TALITOS_SEL0_RNG	0x40000000
+#define	TALITOS_SEL0_PKEU	0x50000000
+#define	TALITOS_SEL0_AESU	0x60000000
+
+/* primary execution unit mode (MODE0) and derivatives */
+#define	TALITOS_MODE0_AESU_CBC		0x00200000
+#define	TALITOS_MODE0_AESU_ENC		0x00100000
+#define	TALITOS_MODE0_DEU_CBC		0x00400000
+#define	TALITOS_MODE0_DEU_3DES		0x00200000
+#define	TALITOS_MODE0_DEU_ENC		0x00100000
+#define	TALITOS_MODE0_MDEU_INIT		0x01000000	/* init starting regs */
+#define	TALITOS_MODE0_MDEU_HMAC		0x00800000
+#define	TALITOS_MODE0_MDEU_PAD		0x00400000	/* PD */
+#define	TALITOS_MODE0_MDEU_MD5		0x00200000
+#define	TALITOS_MODE0_MDEU_SHA256	0x00100000
+#define	TALITOS_MODE0_MDEU_SHA1		0x00000000	/* SHA-160 */
+#define	TALITOS_MODE0_MDEU_MD5_HMAC	\
+		(TALITOS_MODE0_MDEU_MD5 | TALITOS_MODE0_MDEU_HMAC)
+#define	TALITOS_MODE0_MDEU_SHA256_HMAC	\
+		(TALITOS_MODE0_MDEU_SHA256 | TALITOS_MODE0_MDEU_HMAC)
+#define	TALITOS_MODE0_MDEU_SHA1_HMAC	\
+		(TALITOS_MODE0_MDEU_SHA1 | TALITOS_MODE0_MDEU_HMAC)
+
+/* secondary execution unit select (SEL1) */
+/* it's MDEU or nothing */
+#define	TALITOS_SEL1_MDEU	0x00030000
+
+/* secondary execution unit mode (MODE1) and derivatives */
+#define	TALITOS_MODE1_MDEU_INIT		0x00001000	/* init starting regs */
+#define	TALITOS_MODE1_MDEU_HMAC		0x00000800
+#define	TALITOS_MODE1_MDEU_PAD		0x00000400	/* PD */
+#define	TALITOS_MODE1_MDEU_MD5		0x00000200
+#define	TALITOS_MODE1_MDEU_SHA256	0x00000100
+#define	TALITOS_MODE1_MDEU_SHA1		0x00000000	/* SHA-160 */
+#define	TALITOS_MODE1_MDEU_MD5_HMAC	\
+	(TALITOS_MODE1_MDEU_MD5 | TALITOS_MODE1_MDEU_HMAC)
+#define	TALITOS_MODE1_MDEU_SHA256_HMAC	\
+	(TALITOS_MODE1_MDEU_SHA256 | TALITOS_MODE1_MDEU_HMAC)
+#define	TALITOS_MODE1_MDEU_SHA1_HMAC	\
+	(TALITOS_MODE1_MDEU_SHA1 | TALITOS_MODE1_MDEU_HMAC)
+
+/* direction of overall data flow (DIR) */
+#define	TALITOS_DIR_OUTBOUND	0x00000000
+#define	TALITOS_DIR_INBOUND	0x00000002
+
+/* done notification (DN) */
+#define	TALITOS_DONE_NOTIFY	0x00000001
+
+/* descriptor types */
+/* odd numbers here are valid on SEC2 and greater only (e.g. ipsec_esp) */
+#define TD_TYPE_AESU_CTR_NONSNOOP	(0 << 3)
+#define TD_TYPE_IPSEC_ESP		(1 << 3)
+#define TD_TYPE_COMMON_NONSNOOP_NO_AFEU	(2 << 3)
+#define TD_TYPE_HMAC_SNOOP_NO_AFEU	(4 << 3)
+
+#define TALITOS_HDR_DONE_BITS	0xff000000
+
+#define	DPRINTF(a...)	do { \
+						if (debug) { \
+							printk("%s: ", sc ? \
+								device_get_nameunit(sc->sc_cdev) : "talitos"); \
+							printk(a); \
+						} \
+					} while (0)
diff -Nur linux-2.6.29.1.orig/crypto/ocf/talitos/talitos_soft.h linux-2.6.29.1/crypto/ocf/talitos/talitos_soft.h
--- linux-2.6.29.1.orig/crypto/ocf/talitos/talitos_soft.h	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/talitos/talitos_soft.h	2009-04-20 20:01:21.664565422 +0200
@@ -0,0 +1,77 @@
+/*
+ * Freescale SEC data structures for integration with ocf-linux
+ *
+ * Copyright (c) 2006 Freescale Semiconductor, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * paired descriptor and associated crypto operation
+ */
+struct desc_cryptop_pair {
+	struct talitos_desc	cf_desc;	/* descriptor ptr */
+	struct cryptop		*cf_crp;	/* cryptop ptr */
+};
+
+/*
+ * Holds data specific to a single talitos device.
+ */
+struct talitos_softc {
+	softc_device_decl	sc_cdev;
+	struct platform_device	*sc_dev;	/* device backpointer */
+	ocf_iomem_t		sc_base_addr;
+	int			sc_irq;
+	int			sc_num;		/* if we have multiple chips */
+	int32_t			sc_cid;		/* crypto tag */
+	u64			sc_chiprev;	/* major/minor chip revision */
+	int			sc_nsessions;
+	struct talitos_session	*sc_sessions;
+	int			sc_num_channels;/* number of crypto channels */
+	int			sc_chfifo_len;	/* channel fetch fifo len */
+	int			sc_exec_units;	/* execution units mask */
+	int			sc_desc_types;	/* descriptor types mask */
+	/*
+	 * mutual exclusion for intra-channel resources, e.g. fetch fifos
+	 * the last entry is a meta-channel lock used by the channel scheduler
+	 */
+	spinlock_t		*sc_chnfifolock;
+	/* sc_chnlastalgo contains last algorithm for that channel */
+	int			*sc_chnlastalg;
+	/* sc_chnfifo holds pending descriptor--crypto operation pairs */
+	struct desc_cryptop_pair	**sc_chnfifo;
+};
+
+struct talitos_session {
+	u_int32_t	ses_used;
+	u_int32_t	ses_klen;		/* key length in bits */
+	u_int32_t	ses_key[8];		/* DES/3DES/AES key */
+	u_int32_t	ses_hmac[5];		/* hmac inner state */
+	u_int32_t	ses_hmac_len;		/* hmac length */
+	u_int32_t	ses_iv[4];		/* DES/3DES/AES iv */
+	u_int32_t	ses_mlen;		/* desired hash result len (12=ipsec or 16) */
+};
+
+#define	TALITOS_SESSION(sid)	((sid) & 0x0fffffff)
+#define	TALITOS_SID(crd, sesn)	(((crd) << 28) | ((sesn) & 0x0fffffff))
diff -Nur linux-2.6.29.1.orig/crypto/ocf/uio.h linux-2.6.29.1/crypto/ocf/uio.h
--- linux-2.6.29.1.orig/crypto/ocf/uio.h	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.29.1/crypto/ocf/uio.h	2009-04-20 20:01:21.664565422 +0200
@@ -0,0 +1,54 @@
+#ifndef _OCF_UIO_H_
+#define _OCF_UIO_H_
+
+#include <linux/uio.h>
+
+/*
+ * The linux uio.h doesn't have all we need.  To be fully api compatible
+ * with the BSD cryptodev,  we need to keep this around.  Perhaps this can
+ * be moved back into the linux/uio.h
+ *
+ * Linux port done by David McCullough <david_mccullough@securecomputing.com>
+ * Copyright (C) 2006-2007 David McCullough
+ * Copyright (C) 2004-2005 Intel Corporation.
+ *
+ * LICENSE TERMS
+ *
+ * The free distribution and use of this software in both source and binary
+ * form is allowed (with or without changes) provided that:
+ *
+ *   1. distributions of this source code include the above copyright
+ *      notice, this list of conditions and the following disclaimer;
+ *
+ *   2. distributions in binary form include the above copyright
+ *      notice, this list of conditions and the following disclaimer
+ *      in the documentation and/or other associated materials;
+ *
+ *   3. the copyright holder's name is not used to endorse products
+ *      built using this software without specific written permission.
+ *
+ * ALTERNATIVELY, provided that this notice is retained in full, this product
+ * may be distributed under the terms of the GNU General Public License (GPL),
+ * in which case the provisions of the GPL apply INSTEAD OF those given above.
+ *
+ * DISCLAIMER
+ *
+ * This software is provided 'as is' with no explicit or implied warranties
+ * in respect of its properties, including, but not limited to, correctness
+ * and/or fitness for purpose.
+ * ---------------------------------------------------------------------------
+ */
+
+struct uio {
+	struct	iovec *uio_iov;
+	int		uio_iovcnt;
+	off_t	uio_offset;
+	int		uio_resid;
+#if 0
+	enum	uio_seg uio_segflg;
+	enum	uio_rw uio_rw;
+	struct  thread *uio_td;
+#endif
+};
+
+#endif
diff -Nur linux-2.6.29.1.orig/drivers/char/random.c linux-2.6.29.1/drivers/char/random.c
--- linux-2.6.29.1.orig/drivers/char/random.c	2009-04-02 22:55:27.000000000 +0200
+++ linux-2.6.29.1/drivers/char/random.c	2009-04-20 20:01:21.664565422 +0200
@@ -129,6 +129,9 @@
  *                                unsigned int value);
  * 	void add_interrupt_randomness(int irq);
  *
+ *      void random_input_words(__u32 *buf, size_t wordcount, int ent_count)
+ *      int random_input_wait(void);
+ *
  * add_input_randomness() uses the input layer interrupt timing, as well as
  * the event type information from the hardware.
  *
@@ -140,6 +143,13 @@
  * a better measure, since the timing of the disk interrupts are more
  * unpredictable.
  *
+ * random_input_words() just provides a raw block of entropy to the input
+ * pool, such as from a hardware entropy generator.
+ *
+ * random_input_wait() suspends the caller until such time as the
+ * entropy pool falls below the write threshold, and returns a count of how
+ * much entropy (in bits) is needed to sustain the pool.
+ *
  * All of these routines try to estimate how many bits of randomness a
  * particular randomness source.  They do this by keeping track of the
  * first and second order deltas of the event timings.
@@ -708,6 +718,61 @@
 }
 #endif
 
+/*
+ * random_input_words - add bulk entropy to pool
+ *
+ * @buf: buffer to add
+ * @wordcount: number of __u32 words to add
+ * @ent_count: total amount of entropy (in bits) to credit
+ *
+ * this provides bulk input of entropy to the input pool
+ *
+ */
+void random_input_words(__u32 *buf, size_t wordcount, int ent_count)
+{
+	mix_pool_bytes(&input_pool, buf, wordcount*4);
+
+	credit_entropy_bits(&input_pool, ent_count);
+
+	DEBUG_ENT("crediting %d bits => %d\n",
+		  ent_count, input_pool.entropy_count);
+	/*
+	 * Wake up waiting processes if we have enough
+	 * entropy.
+	 */
+	if (input_pool.entropy_count >= random_read_wakeup_thresh)
+		wake_up_interruptible(&random_read_wait);
+}
+EXPORT_SYMBOL(random_input_words);
+
+/*
+ * random_input_wait - wait until random needs entropy
+ *
+ * this function sleeps until the /dev/random subsystem actually
+ * needs more entropy, and then return the amount of entropy
+ * that it would be nice to have added to the system.
+ */
+int random_input_wait(void)
+{
+	int count;
+
+	wait_event_interruptible(random_write_wait, 
+			 input_pool.entropy_count < random_write_wakeup_thresh);
+
+	count = random_write_wakeup_thresh - input_pool.entropy_count;
+
+        /* likely we got woken up due to a signal */
+	if (count <= 0) count = random_read_wakeup_thresh; 
+
+	DEBUG_ENT("requesting %d bits from input_wait()er %d<%d\n",
+		  count,
+		  input_pool.entropy_count, random_write_wakeup_thresh);
+
+	return count;
+}
+EXPORT_SYMBOL(random_input_wait);
+
+
 #define EXTRACT_SIZE 10
 
 /*********************************************************************
diff -Nur linux-2.6.29.1.orig/fs/fcntl.c linux-2.6.29.1/fs/fcntl.c
--- linux-2.6.29.1.orig/fs/fcntl.c	2009-04-02 22:55:27.000000000 +0200
+++ linux-2.6.29.1/fs/fcntl.c	2009-04-20 20:01:21.668566770 +0200
@@ -140,6 +140,7 @@
 	}
 	return ret;
 }
+EXPORT_SYMBOL(sys_dup);
 
 #define SETFL_MASK (O_APPEND | O_NONBLOCK | O_NDELAY | FASYNC | O_DIRECT | O_NOATIME)
 
diff -Nur linux-2.6.29.1.orig/include/linux/miscdevice.h linux-2.6.29.1/include/linux/miscdevice.h
--- linux-2.6.29.1.orig/include/linux/miscdevice.h	2009-04-02 22:55:27.000000000 +0200
+++ linux-2.6.29.1/include/linux/miscdevice.h	2009-04-20 20:02:00.530996185 +0200
@@ -12,6 +12,7 @@
 #define APOLLO_MOUSE_MINOR	7
 #define PC110PAD_MINOR		9
 /*#define ADB_MOUSE_MINOR	10	FIXME OBSOLETE */
+#define CRYPTODEV_MINOR		70	/* /dev/crypto */
 #define WATCHDOG_MINOR		130	/* Watchdog timer     */
 #define TEMP_MINOR		131	/* Temperature Sensor */
 #define RTC_MINOR		135
diff -Nur linux-2.6.29.1.orig/include/linux/random.h linux-2.6.29.1/include/linux/random.h
--- linux-2.6.29.1.orig/include/linux/random.h	2009-04-02 22:55:27.000000000 +0200
+++ linux-2.6.29.1/include/linux/random.h	2009-04-20 20:01:21.680566903 +0200
@@ -34,6 +34,30 @@
 /* Clear the entropy pool and associated counters.  (Superuser only.) */
 #define RNDCLEARPOOL	_IO( 'R', 0x06 )
 
+#ifdef CONFIG_FIPS_RNG
+
+/* Size of seed value - equal to AES blocksize */
+#define AES_BLOCK_SIZE_BYTES	16
+#define SEED_SIZE_BYTES			AES_BLOCK_SIZE_BYTES
+/* Size of AES key */
+#define KEY_SIZE_BYTES		16
+
+/* ioctl() structure used by FIPS 140-2 Tests */
+struct rand_fips_test {
+	unsigned char key[KEY_SIZE_BYTES];			/* Input */
+	unsigned char datetime[SEED_SIZE_BYTES];	/* Input */
+	unsigned char seed[SEED_SIZE_BYTES];		/* Input */
+	unsigned char result[SEED_SIZE_BYTES];		/* Output */
+};
+
+/* FIPS 140-2 RNG Variable Seed Test. (Superuser only.) */
+#define RNDFIPSVST	_IOWR('R', 0x10, struct rand_fips_test)
+
+/* FIPS 140-2 RNG Monte Carlo Test. (Superuser only.) */
+#define RNDFIPSMCT	_IOWR('R', 0x11, struct rand_fips_test)
+
+#endif /* #ifdef CONFIG_FIPS_RNG */
+
 struct rand_pool_info {
 	int	entropy_count;
 	int	buf_size;
@@ -50,6 +74,10 @@
 				 unsigned int value);
 extern void add_interrupt_randomness(int irq);
 
+extern void random_input_words(__u32 *buf, size_t wordcount, int ent_count);
+extern int random_input_wait(void);
+#define HAS_RANDOM_INPUT_WAIT 1
+
 extern void get_random_bytes(void *buf, int nbytes);
 void generate_random_uuid(unsigned char uuid_out[16]);
 
