From fe40f6aba9ba59000ffa681a23ad59e9347346af Mon Sep 17 00:00:00 2001
From: Phil Sutter <phil@nwl.cc>
Date: Tue, 13 May 2014 00:36:13 +0200
Subject: [PATCH] net: add swconfig support

---
 drivers/net/phy/Kconfig         |   10 +
 drivers/net/phy/Makefile        |    1 +
 drivers/net/phy/swconfig.c      | 1144 +++++++++++++++++++++++++++++++++++++++
 drivers/net/phy/swconfig_leds.c |  354 ++++++++++++
 include/linux/switch.h          |  167 ++++++
 include/uapi/linux/Kbuild       |    1 +
 include/uapi/linux/switch.h     |  103 ++++
 7 files changed, 1780 insertions(+)
 create mode 100644 drivers/net/phy/swconfig.c
 create mode 100644 drivers/net/phy/swconfig_leds.c
 create mode 100644 include/linux/switch.h
 create mode 100644 include/uapi/linux/switch.h

diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index 9b5d46c..36a13fc 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -12,6 +12,16 @@ menuconfig PHYLIB
 
 if PHYLIB
 
+config SWCONFIG
+	tristate "Switch configuration API"
+	---help---
+	  Switch configuration API using netlink. This allows
+	  you to configure the VLAN features of certain switches.
+
+config SWCONFIG_LEDS
+	bool "Switch LED trigger support"
+	depends on (SWCONFIG && LEDS_TRIGGERS)
+
 comment "MII PHY device drivers"
 
 config AT803X_PHY
diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
index 9013dfa..b510bd6 100644
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -3,6 +3,7 @@
 libphy-objs			:= phy.o phy_device.o mdio_bus.o
 
 obj-$(CONFIG_PHYLIB)		+= libphy.o
+obj-$(CONFIG_SWCONFIG)		+= swconfig.o
 obj-$(CONFIG_MARVELL_PHY)	+= marvell.o
 obj-$(CONFIG_DAVICOM_PHY)	+= davicom.o
 obj-$(CONFIG_CICADA_PHY)	+= cicada.o
diff --git a/drivers/net/phy/swconfig.c b/drivers/net/phy/swconfig.c
new file mode 100644
index 0000000..c043ee4
--- /dev/null
+++ b/drivers/net/phy/swconfig.c
@@ -0,0 +1,1144 @@
+/*
+ * swconfig.c: Switch configuration API
+ *
+ * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * 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.
+ */
+
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/if.h>
+#include <linux/if_ether.h>
+#include <linux/capability.h>
+#include <linux/skbuff.h>
+#include <linux/switch.h>
+#include <linux/of.h>
+#include <linux/version.h>
+
+#define SWCONFIG_DEVNAME	"switch%d"
+
+#include "swconfig_leds.c"
+
+MODULE_AUTHOR("Felix Fietkau <nbd@openwrt.org>");
+MODULE_LICENSE("GPL");
+
+static int swdev_id;
+static struct list_head swdevs;
+static DEFINE_SPINLOCK(swdevs_lock);
+struct swconfig_callback;
+
+struct swconfig_callback {
+	struct sk_buff *msg;
+	struct genlmsghdr *hdr;
+	struct genl_info *info;
+	int cmd;
+
+	/* callback for filling in the message data */
+	int (*fill)(struct swconfig_callback *cb, void *arg);
+
+	/* callback for closing the message before sending it */
+	int (*close)(struct swconfig_callback *cb, void *arg);
+
+	struct nlattr *nest[4];
+	int args[4];
+};
+
+/* defaults */
+
+static int
+swconfig_get_vlan_ports(struct switch_dev *dev, const struct switch_attr *attr,
+			struct switch_val *val)
+{
+	int ret;
+	if (val->port_vlan >= dev->vlans)
+		return -EINVAL;
+
+	if (!dev->ops->get_vlan_ports)
+		return -EOPNOTSUPP;
+
+	ret = dev->ops->get_vlan_ports(dev, val);
+	return ret;
+}
+
+static int
+swconfig_set_vlan_ports(struct switch_dev *dev, const struct switch_attr *attr,
+			struct switch_val *val)
+{
+	struct switch_port *ports = val->value.ports;
+	const struct switch_dev_ops *ops = dev->ops;
+	int i;
+
+	if (val->port_vlan >= dev->vlans)
+		return -EINVAL;
+
+	/* validate ports */
+	if (val->len > dev->ports)
+		return -EINVAL;
+
+	if (!ops->set_vlan_ports)
+		return -EOPNOTSUPP;
+
+	for (i = 0; i < val->len; i++) {
+		if (ports[i].id >= dev->ports)
+			return -EINVAL;
+
+		if (ops->set_port_pvid &&
+		    !(ports[i].flags & (1 << SWITCH_PORT_FLAG_TAGGED)))
+			ops->set_port_pvid(dev, ports[i].id, val->port_vlan);
+	}
+
+	return ops->set_vlan_ports(dev, val);
+}
+
+static int
+swconfig_set_pvid(struct switch_dev *dev, const struct switch_attr *attr,
+			struct switch_val *val)
+{
+	if (val->port_vlan >= dev->ports)
+		return -EINVAL;
+
+	if (!dev->ops->set_port_pvid)
+		return -EOPNOTSUPP;
+
+	return dev->ops->set_port_pvid(dev, val->port_vlan, val->value.i);
+}
+
+static int
+swconfig_get_pvid(struct switch_dev *dev, const struct switch_attr *attr,
+			struct switch_val *val)
+{
+	if (val->port_vlan >= dev->ports)
+		return -EINVAL;
+
+	if (!dev->ops->get_port_pvid)
+		return -EOPNOTSUPP;
+
+	return dev->ops->get_port_pvid(dev, val->port_vlan, &val->value.i);
+}
+
+static const char *
+swconfig_speed_str(enum switch_port_speed speed)
+{
+	switch (speed) {
+	case SWITCH_PORT_SPEED_10:
+		return "10baseT";
+	case SWITCH_PORT_SPEED_100:
+		return "100baseT";
+	case SWITCH_PORT_SPEED_1000:
+		return "1000baseT";
+	default:
+		break;
+	}
+
+	return "unknown";
+}
+
+static int
+swconfig_get_link(struct switch_dev *dev, const struct switch_attr *attr,
+			struct switch_val *val)
+{
+	struct switch_port_link link;
+	int len;
+	int ret;
+
+	if (val->port_vlan >= dev->ports)
+		return -EINVAL;
+
+	if (!dev->ops->get_port_link)
+		return -EOPNOTSUPP;
+
+	memset(&link, 0, sizeof(link));
+	ret = dev->ops->get_port_link(dev, val->port_vlan, &link);
+	if (ret)
+		return ret;
+
+	memset(dev->buf, 0, sizeof(dev->buf));
+
+	if (link.link)
+		len = snprintf(dev->buf, sizeof(dev->buf),
+			       "port:%d link:up speed:%s %s-duplex %s%s%s",
+			       val->port_vlan,
+			       swconfig_speed_str(link.speed),
+			       link.duplex ? "full" : "half",
+			       link.tx_flow ? "txflow " : "",
+			       link.rx_flow ?	"rxflow " : "",
+			       link.aneg ? "auto" : "");
+	else
+		len = snprintf(dev->buf, sizeof(dev->buf), "port:%d link:down",
+			       val->port_vlan);
+
+	val->value.s = dev->buf;
+	val->len = len;
+
+	return 0;
+}
+
+static int
+swconfig_apply_config(struct switch_dev *dev, const struct switch_attr *attr,
+			struct switch_val *val)
+{
+	/* don't complain if not supported by the switch driver */
+	if (!dev->ops->apply_config)
+		return 0;
+
+	return dev->ops->apply_config(dev);
+}
+
+static int
+swconfig_reset_switch(struct switch_dev *dev, const struct switch_attr *attr,
+			struct switch_val *val)
+{
+	/* don't complain if not supported by the switch driver */
+	if (!dev->ops->reset_switch)
+		return 0;
+
+	return dev->ops->reset_switch(dev);
+}
+
+enum global_defaults {
+	GLOBAL_APPLY,
+	GLOBAL_RESET,
+};
+
+enum vlan_defaults {
+	VLAN_PORTS,
+};
+
+enum port_defaults {
+	PORT_PVID,
+	PORT_LINK,
+};
+
+static struct switch_attr default_global[] = {
+	[GLOBAL_APPLY] = {
+		.type = SWITCH_TYPE_NOVAL,
+		.name = "apply",
+		.description = "Activate changes in the hardware",
+		.set = swconfig_apply_config,
+	},
+	[GLOBAL_RESET] = {
+		.type = SWITCH_TYPE_NOVAL,
+		.name = "reset",
+		.description = "Reset the switch",
+		.set = swconfig_reset_switch,
+	}
+};
+
+static struct switch_attr default_port[] = {
+	[PORT_PVID] = {
+		.type = SWITCH_TYPE_INT,
+		.name = "pvid",
+		.description = "Primary VLAN ID",
+		.set = swconfig_set_pvid,
+		.get = swconfig_get_pvid,
+	},
+	[PORT_LINK] = {
+		.type = SWITCH_TYPE_STRING,
+		.name = "link",
+		.description = "Get port link information",
+		.set = NULL,
+		.get = swconfig_get_link,
+	}
+};
+
+static struct switch_attr default_vlan[] = {
+	[VLAN_PORTS] = {
+		.type = SWITCH_TYPE_PORTS,
+		.name = "ports",
+		.description = "VLAN port mapping",
+		.set = swconfig_set_vlan_ports,
+		.get = swconfig_get_vlan_ports,
+	},
+};
+
+static const struct switch_attr *
+swconfig_find_attr_by_name(const struct switch_attrlist *alist,
+				const char *name)
+{
+	int i;
+
+	for (i = 0; i < alist->n_attr; i++)
+		if (strcmp(name, alist->attr[i].name) == 0)
+			return &alist->attr[i];
+
+	return NULL;
+}
+
+static void swconfig_defaults_init(struct switch_dev *dev)
+{
+	const struct switch_dev_ops *ops = dev->ops;
+
+	dev->def_global = 0;
+	dev->def_vlan = 0;
+	dev->def_port = 0;
+
+	if (ops->get_vlan_ports || ops->set_vlan_ports)
+		set_bit(VLAN_PORTS, &dev->def_vlan);
+
+	if (ops->get_port_pvid || ops->set_port_pvid)
+		set_bit(PORT_PVID, &dev->def_port);
+
+	if (ops->get_port_link &&
+	    !swconfig_find_attr_by_name(&ops->attr_port, "link"))
+		set_bit(PORT_LINK, &dev->def_port);
+
+	/* always present, can be no-op */
+	set_bit(GLOBAL_APPLY, &dev->def_global);
+	set_bit(GLOBAL_RESET, &dev->def_global);
+}
+
+
+static struct genl_family switch_fam = {
+	.id = GENL_ID_GENERATE,
+	.name = "switch",
+	.hdrsize = 0,
+	.version = 1,
+	.maxattr = SWITCH_ATTR_MAX,
+};
+
+static const struct nla_policy switch_policy[SWITCH_ATTR_MAX+1] = {
+	[SWITCH_ATTR_ID] = { .type = NLA_U32 },
+	[SWITCH_ATTR_OP_ID] = { .type = NLA_U32 },
+	[SWITCH_ATTR_OP_PORT] = { .type = NLA_U32 },
+	[SWITCH_ATTR_OP_VLAN] = { .type = NLA_U32 },
+	[SWITCH_ATTR_OP_VALUE_INT] = { .type = NLA_U32 },
+	[SWITCH_ATTR_OP_VALUE_STR] = { .type = NLA_NUL_STRING },
+	[SWITCH_ATTR_OP_VALUE_PORTS] = { .type = NLA_NESTED },
+	[SWITCH_ATTR_TYPE] = { .type = NLA_U32 },
+};
+
+static const struct nla_policy port_policy[SWITCH_PORT_ATTR_MAX+1] = {
+	[SWITCH_PORT_ID] = { .type = NLA_U32 },
+	[SWITCH_PORT_FLAG_TAGGED] = { .type = NLA_FLAG },
+};
+
+static inline void
+swconfig_lock(void)
+{
+	spin_lock(&swdevs_lock);
+}
+
+static inline void
+swconfig_unlock(void)
+{
+	spin_unlock(&swdevs_lock);
+}
+
+static struct switch_dev *
+swconfig_get_dev(struct genl_info *info)
+{
+	struct switch_dev *dev = NULL;
+	struct switch_dev *p;
+	int id;
+
+	if (!info->attrs[SWITCH_ATTR_ID])
+		goto done;
+
+	id = nla_get_u32(info->attrs[SWITCH_ATTR_ID]);
+	swconfig_lock();
+	list_for_each_entry(p, &swdevs, dev_list) {
+		if (id != p->id)
+			continue;
+
+		dev = p;
+		break;
+	}
+	if (dev)
+		mutex_lock(&dev->sw_mutex);
+	else
+		pr_debug("device %d not found\n", id);
+	swconfig_unlock();
+done:
+	return dev;
+}
+
+static inline void
+swconfig_put_dev(struct switch_dev *dev)
+{
+	mutex_unlock(&dev->sw_mutex);
+}
+
+static int
+swconfig_dump_attr(struct swconfig_callback *cb, void *arg)
+{
+	struct switch_attr *op = arg;
+	struct genl_info *info = cb->info;
+	struct sk_buff *msg = cb->msg;
+	int id = cb->args[0];
+	void *hdr;
+
+	hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, &switch_fam,
+			NLM_F_MULTI, SWITCH_CMD_NEW_ATTR);
+	if (IS_ERR(hdr))
+		return -1;
+
+	if (nla_put_u32(msg, SWITCH_ATTR_OP_ID, id))
+		goto nla_put_failure;
+	if (nla_put_u32(msg, SWITCH_ATTR_OP_TYPE, op->type))
+		goto nla_put_failure;
+	if (nla_put_string(msg, SWITCH_ATTR_OP_NAME, op->name))
+		goto nla_put_failure;
+	if (op->description)
+		if (nla_put_string(msg, SWITCH_ATTR_OP_DESCRIPTION,
+			op->description))
+			goto nla_put_failure;
+
+	return genlmsg_end(msg, hdr);
+nla_put_failure:
+	genlmsg_cancel(msg, hdr);
+	return -EMSGSIZE;
+}
+
+/* spread multipart messages across multiple message buffers */
+static int
+swconfig_send_multipart(struct swconfig_callback *cb, void *arg)
+{
+	struct genl_info *info = cb->info;
+	int restart = 0;
+	int err;
+
+	do {
+		if (!cb->msg) {
+			cb->msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+			if (cb->msg == NULL)
+				goto error;
+		}
+
+		if (!(cb->fill(cb, arg) < 0))
+			break;
+
+		/* fill failed, check if this was already the second attempt */
+		if (restart)
+			goto error;
+
+		/* try again in a new message, send the current one */
+		restart = 1;
+		if (cb->close) {
+			if (cb->close(cb, arg) < 0)
+				goto error;
+		}
+		err = genlmsg_reply(cb->msg, info);
+		cb->msg = NULL;
+		if (err < 0)
+			goto error;
+
+	} while (restart);
+
+	return 0;
+
+error:
+	if (cb->msg)
+		nlmsg_free(cb->msg);
+	return -1;
+}
+
+static int
+swconfig_list_attrs(struct sk_buff *skb, struct genl_info *info)
+{
+	struct genlmsghdr *hdr = nlmsg_data(info->nlhdr);
+	const struct switch_attrlist *alist;
+	struct switch_dev *dev;
+	struct swconfig_callback cb;
+	int err = -EINVAL;
+	int i;
+
+	/* defaults */
+	struct switch_attr *def_list;
+	unsigned long *def_active;
+	int n_def;
+
+	dev = swconfig_get_dev(info);
+	if (!dev)
+		return -EINVAL;
+
+	switch (hdr->cmd) {
+	case SWITCH_CMD_LIST_GLOBAL:
+		alist = &dev->ops->attr_global;
+		def_list = default_global;
+		def_active = &dev->def_global;
+		n_def = ARRAY_SIZE(default_global);
+		break;
+	case SWITCH_CMD_LIST_VLAN:
+		alist = &dev->ops->attr_vlan;
+		def_list = default_vlan;
+		def_active = &dev->def_vlan;
+		n_def = ARRAY_SIZE(default_vlan);
+		break;
+	case SWITCH_CMD_LIST_PORT:
+		alist = &dev->ops->attr_port;
+		def_list = default_port;
+		def_active = &dev->def_port;
+		n_def = ARRAY_SIZE(default_port);
+		break;
+	default:
+		WARN_ON(1);
+		goto out;
+	}
+
+	memset(&cb, 0, sizeof(cb));
+	cb.info = info;
+	cb.fill = swconfig_dump_attr;
+	for (i = 0; i < alist->n_attr; i++) {
+		if (alist->attr[i].disabled)
+			continue;
+		cb.args[0] = i;
+		err = swconfig_send_multipart(&cb, (void *) &alist->attr[i]);
+		if (err < 0)
+			goto error;
+	}
+
+	/* defaults */
+	for (i = 0; i < n_def; i++) {
+		if (!test_bit(i, def_active))
+			continue;
+		cb.args[0] = SWITCH_ATTR_DEFAULTS_OFFSET + i;
+		err = swconfig_send_multipart(&cb, (void *) &def_list[i]);
+		if (err < 0)
+			goto error;
+	}
+	swconfig_put_dev(dev);
+
+	if (!cb.msg)
+		return 0;
+
+	return genlmsg_reply(cb.msg, info);
+
+error:
+	if (cb.msg)
+		nlmsg_free(cb.msg);
+out:
+	swconfig_put_dev(dev);
+	return err;
+}
+
+static const struct switch_attr *
+swconfig_lookup_attr(struct switch_dev *dev, struct genl_info *info,
+		struct switch_val *val)
+{
+	struct genlmsghdr *hdr = nlmsg_data(info->nlhdr);
+	const struct switch_attrlist *alist;
+	const struct switch_attr *attr = NULL;
+	int attr_id;
+
+	/* defaults */
+	struct switch_attr *def_list;
+	unsigned long *def_active;
+	int n_def;
+
+	if (!info->attrs[SWITCH_ATTR_OP_ID])
+		goto done;
+
+	switch (hdr->cmd) {
+	case SWITCH_CMD_SET_GLOBAL:
+	case SWITCH_CMD_GET_GLOBAL:
+		alist = &dev->ops->attr_global;
+		def_list = default_global;
+		def_active = &dev->def_global;
+		n_def = ARRAY_SIZE(default_global);
+		break;
+	case SWITCH_CMD_SET_VLAN:
+	case SWITCH_CMD_GET_VLAN:
+		alist = &dev->ops->attr_vlan;
+		def_list = default_vlan;
+		def_active = &dev->def_vlan;
+		n_def = ARRAY_SIZE(default_vlan);
+		if (!info->attrs[SWITCH_ATTR_OP_VLAN])
+			goto done;
+		val->port_vlan = nla_get_u32(info->attrs[SWITCH_ATTR_OP_VLAN]);
+		if (val->port_vlan >= dev->vlans)
+			goto done;
+		break;
+	case SWITCH_CMD_SET_PORT:
+	case SWITCH_CMD_GET_PORT:
+		alist = &dev->ops->attr_port;
+		def_list = default_port;
+		def_active = &dev->def_port;
+		n_def = ARRAY_SIZE(default_port);
+		if (!info->attrs[SWITCH_ATTR_OP_PORT])
+			goto done;
+		val->port_vlan = nla_get_u32(info->attrs[SWITCH_ATTR_OP_PORT]);
+		if (val->port_vlan >= dev->ports)
+			goto done;
+		break;
+	default:
+		WARN_ON(1);
+		goto done;
+	}
+
+	if (!alist)
+		goto done;
+
+	attr_id = nla_get_u32(info->attrs[SWITCH_ATTR_OP_ID]);
+	if (attr_id >= SWITCH_ATTR_DEFAULTS_OFFSET) {
+		attr_id -= SWITCH_ATTR_DEFAULTS_OFFSET;
+		if (attr_id >= n_def)
+			goto done;
+		if (!test_bit(attr_id, def_active))
+			goto done;
+		attr = &def_list[attr_id];
+	} else {
+		if (attr_id >= alist->n_attr)
+			goto done;
+		attr = &alist->attr[attr_id];
+	}
+
+	if (attr->disabled)
+		attr = NULL;
+
+done:
+	if (!attr)
+		pr_debug("attribute lookup failed\n");
+	val->attr = attr;
+	return attr;
+}
+
+static int
+swconfig_parse_ports(struct sk_buff *msg, struct nlattr *head,
+		struct switch_val *val, int max)
+{
+	struct nlattr *nla;
+	int rem;
+
+	val->len = 0;
+	nla_for_each_nested(nla, head, rem) {
+		struct nlattr *tb[SWITCH_PORT_ATTR_MAX+1];
+		struct switch_port *port = &val->value.ports[val->len];
+
+		if (val->len >= max)
+			return -EINVAL;
+
+		if (nla_parse_nested(tb, SWITCH_PORT_ATTR_MAX, nla,
+				port_policy))
+			return -EINVAL;
+
+		if (!tb[SWITCH_PORT_ID])
+			return -EINVAL;
+
+		port->id = nla_get_u32(tb[SWITCH_PORT_ID]);
+		if (tb[SWITCH_PORT_FLAG_TAGGED])
+			port->flags |= (1 << SWITCH_PORT_FLAG_TAGGED);
+		val->len++;
+	}
+
+	return 0;
+}
+
+static int
+swconfig_set_attr(struct sk_buff *skb, struct genl_info *info)
+{
+	const struct switch_attr *attr;
+	struct switch_dev *dev;
+	struct switch_val val;
+	int err = -EINVAL;
+
+	dev = swconfig_get_dev(info);
+	if (!dev)
+		return -EINVAL;
+
+	memset(&val, 0, sizeof(val));
+	attr = swconfig_lookup_attr(dev, info, &val);
+	if (!attr || !attr->set)
+		goto error;
+
+	val.attr = attr;
+	switch (attr->type) {
+	case SWITCH_TYPE_NOVAL:
+		break;
+	case SWITCH_TYPE_INT:
+		if (!info->attrs[SWITCH_ATTR_OP_VALUE_INT])
+			goto error;
+		val.value.i =
+			nla_get_u32(info->attrs[SWITCH_ATTR_OP_VALUE_INT]);
+		break;
+	case SWITCH_TYPE_STRING:
+		if (!info->attrs[SWITCH_ATTR_OP_VALUE_STR])
+			goto error;
+		val.value.s =
+			nla_data(info->attrs[SWITCH_ATTR_OP_VALUE_STR]);
+		break;
+	case SWITCH_TYPE_PORTS:
+		val.value.ports = dev->portbuf;
+		memset(dev->portbuf, 0,
+			sizeof(struct switch_port) * dev->ports);
+
+		/* TODO: implement multipart? */
+		if (info->attrs[SWITCH_ATTR_OP_VALUE_PORTS]) {
+			err = swconfig_parse_ports(skb,
+				info->attrs[SWITCH_ATTR_OP_VALUE_PORTS],
+				&val, dev->ports);
+			if (err < 0)
+				goto error;
+		} else {
+			val.len = 0;
+			err = 0;
+		}
+		break;
+	default:
+		goto error;
+	}
+
+	err = attr->set(dev, attr, &val);
+error:
+	swconfig_put_dev(dev);
+	return err;
+}
+
+static int
+swconfig_close_portlist(struct swconfig_callback *cb, void *arg)
+{
+	if (cb->nest[0])
+		nla_nest_end(cb->msg, cb->nest[0]);
+	return 0;
+}
+
+static int
+swconfig_send_port(struct swconfig_callback *cb, void *arg)
+{
+	const struct switch_port *port = arg;
+	struct nlattr *p = NULL;
+
+	if (!cb->nest[0]) {
+		cb->nest[0] = nla_nest_start(cb->msg, cb->cmd);
+		if (!cb->nest[0])
+			return -1;
+	}
+
+	p = nla_nest_start(cb->msg, SWITCH_ATTR_PORT);
+	if (!p)
+		goto error;
+
+	if (nla_put_u32(cb->msg, SWITCH_PORT_ID, port->id))
+		goto nla_put_failure;
+	if (port->flags & (1 << SWITCH_PORT_FLAG_TAGGED)) {
+		if (nla_put_flag(cb->msg, SWITCH_PORT_FLAG_TAGGED))
+			goto nla_put_failure;
+	}
+
+	nla_nest_end(cb->msg, p);
+	return 0;
+
+nla_put_failure:
+		nla_nest_cancel(cb->msg, p);
+error:
+	nla_nest_cancel(cb->msg, cb->nest[0]);
+	return -1;
+}
+
+static int
+swconfig_send_ports(struct sk_buff **msg, struct genl_info *info, int attr,
+		const struct switch_val *val)
+{
+	struct swconfig_callback cb;
+	int err = 0;
+	int i;
+
+	if (!val->value.ports)
+		return -EINVAL;
+
+	memset(&cb, 0, sizeof(cb));
+	cb.cmd = attr;
+	cb.msg = *msg;
+	cb.info = info;
+	cb.fill = swconfig_send_port;
+	cb.close = swconfig_close_portlist;
+
+	cb.nest[0] = nla_nest_start(cb.msg, cb.cmd);
+	for (i = 0; i < val->len; i++) {
+		err = swconfig_send_multipart(&cb, &val->value.ports[i]);
+		if (err)
+			goto done;
+	}
+	err = val->len;
+	swconfig_close_portlist(&cb, NULL);
+	*msg = cb.msg;
+
+done:
+	return err;
+}
+
+static int
+swconfig_get_attr(struct sk_buff *skb, struct genl_info *info)
+{
+	struct genlmsghdr *hdr = nlmsg_data(info->nlhdr);
+	const struct switch_attr *attr;
+	struct switch_dev *dev;
+	struct sk_buff *msg = NULL;
+	struct switch_val val;
+	int err = -EINVAL;
+	int cmd = hdr->cmd;
+
+	dev = swconfig_get_dev(info);
+	if (!dev)
+		return -EINVAL;
+
+	memset(&val, 0, sizeof(val));
+	attr = swconfig_lookup_attr(dev, info, &val);
+	if (!attr || !attr->get)
+		goto error;
+
+	if (attr->type == SWITCH_TYPE_PORTS) {
+		val.value.ports = dev->portbuf;
+		memset(dev->portbuf, 0,
+			sizeof(struct switch_port) * dev->ports);
+	}
+
+	err = attr->get(dev, attr, &val);
+	if (err)
+		goto error;
+
+	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	if (!msg)
+		goto error;
+
+	hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, &switch_fam,
+			0, cmd);
+	if (IS_ERR(hdr))
+		goto nla_put_failure;
+
+	switch (attr->type) {
+	case SWITCH_TYPE_INT:
+		if (nla_put_u32(msg, SWITCH_ATTR_OP_VALUE_INT, val.value.i))
+			goto nla_put_failure;
+		break;
+	case SWITCH_TYPE_STRING:
+		if (nla_put_string(msg, SWITCH_ATTR_OP_VALUE_STR, val.value.s))
+			goto nla_put_failure;
+		break;
+	case SWITCH_TYPE_PORTS:
+		err = swconfig_send_ports(&msg, info,
+				SWITCH_ATTR_OP_VALUE_PORTS, &val);
+		if (err < 0)
+			goto nla_put_failure;
+		break;
+	default:
+		pr_debug("invalid type in attribute\n");
+		err = -EINVAL;
+		goto error;
+	}
+	err = genlmsg_end(msg, hdr);
+	if (err < 0)
+		goto nla_put_failure;
+
+	swconfig_put_dev(dev);
+	return genlmsg_reply(msg, info);
+
+nla_put_failure:
+	if (msg)
+		nlmsg_free(msg);
+error:
+	swconfig_put_dev(dev);
+	if (!err)
+		err = -ENOMEM;
+	return err;
+}
+
+static int
+swconfig_send_switch(struct sk_buff *msg, u32 pid, u32 seq, int flags,
+		const struct switch_dev *dev)
+{
+	struct nlattr *p = NULL, *m = NULL;
+	void *hdr;
+	int i;
+
+	hdr = genlmsg_put(msg, pid, seq, &switch_fam, flags,
+			SWITCH_CMD_NEW_ATTR);
+	if (IS_ERR(hdr))
+		return -1;
+
+	if (nla_put_u32(msg, SWITCH_ATTR_ID, dev->id))
+		goto nla_put_failure;
+	if (nla_put_string(msg, SWITCH_ATTR_DEV_NAME, dev->devname))
+		goto nla_put_failure;
+	if (nla_put_string(msg, SWITCH_ATTR_ALIAS, dev->alias))
+		goto nla_put_failure;
+	if (nla_put_string(msg, SWITCH_ATTR_NAME, dev->name))
+		goto nla_put_failure;
+	if (nla_put_u32(msg, SWITCH_ATTR_VLANS, dev->vlans))
+		goto nla_put_failure;
+	if (nla_put_u32(msg, SWITCH_ATTR_PORTS, dev->ports))
+		goto nla_put_failure;
+	if (nla_put_u32(msg, SWITCH_ATTR_CPU_PORT, dev->cpu_port))
+		goto nla_put_failure;
+
+	m = nla_nest_start(msg, SWITCH_ATTR_PORTMAP);
+	if (!m)
+		goto nla_put_failure;
+	for (i = 0; i < dev->ports; i++) {
+		p = nla_nest_start(msg, SWITCH_ATTR_PORTS);
+		if (!p)
+			continue;
+		if (dev->portmap[i].s) {
+			if (nla_put_string(msg, SWITCH_PORTMAP_SEGMENT,
+						dev->portmap[i].s))
+				goto nla_put_failure;
+			if (nla_put_u32(msg, SWITCH_PORTMAP_VIRT,
+						dev->portmap[i].virt))
+				goto nla_put_failure;
+		}
+		nla_nest_end(msg, p);
+	}
+	nla_nest_end(msg, m);
+	return genlmsg_end(msg, hdr);
+nla_put_failure:
+	genlmsg_cancel(msg, hdr);
+	return -EMSGSIZE;
+}
+
+static int swconfig_dump_switches(struct sk_buff *skb,
+		struct netlink_callback *cb)
+{
+	struct switch_dev *dev;
+	int start = cb->args[0];
+	int idx = 0;
+
+	swconfig_lock();
+	list_for_each_entry(dev, &swdevs, dev_list) {
+		if (++idx <= start)
+			continue;
+		if (swconfig_send_switch(skb, NETLINK_CB(cb->skb).portid,
+				cb->nlh->nlmsg_seq, NLM_F_MULTI,
+				dev) < 0)
+			break;
+	}
+	swconfig_unlock();
+	cb->args[0] = idx;
+
+	return skb->len;
+}
+
+static int
+swconfig_done(struct netlink_callback *cb)
+{
+	return 0;
+}
+
+static struct genl_ops swconfig_ops[] = {
+	{
+		.cmd = SWITCH_CMD_LIST_GLOBAL,
+		.doit = swconfig_list_attrs,
+		.policy = switch_policy,
+	},
+	{
+		.cmd = SWITCH_CMD_LIST_VLAN,
+		.doit = swconfig_list_attrs,
+		.policy = switch_policy,
+	},
+	{
+		.cmd = SWITCH_CMD_LIST_PORT,
+		.doit = swconfig_list_attrs,
+		.policy = switch_policy,
+	},
+	{
+		.cmd = SWITCH_CMD_GET_GLOBAL,
+		.doit = swconfig_get_attr,
+		.policy = switch_policy,
+	},
+	{
+		.cmd = SWITCH_CMD_GET_VLAN,
+		.doit = swconfig_get_attr,
+		.policy = switch_policy,
+	},
+	{
+		.cmd = SWITCH_CMD_GET_PORT,
+		.doit = swconfig_get_attr,
+		.policy = switch_policy,
+	},
+	{
+		.cmd = SWITCH_CMD_SET_GLOBAL,
+		.doit = swconfig_set_attr,
+		.policy = switch_policy,
+	},
+	{
+		.cmd = SWITCH_CMD_SET_VLAN,
+		.doit = swconfig_set_attr,
+		.policy = switch_policy,
+	},
+	{
+		.cmd = SWITCH_CMD_SET_PORT,
+		.doit = swconfig_set_attr,
+		.policy = switch_policy,
+	},
+	{
+		.cmd = SWITCH_CMD_GET_SWITCH,
+		.dumpit = swconfig_dump_switches,
+		.policy = switch_policy,
+		.done = swconfig_done,
+	}
+};
+
+#ifdef CONFIG_OF
+void
+of_switch_load_portmap(struct switch_dev *dev)
+{
+	struct device_node *port;
+
+	if (!dev->of_node)
+		return;
+
+	for_each_child_of_node(dev->of_node, port) {
+		const __be32 *prop;
+		const char *segment;
+		int size, phys;
+
+		if (!of_device_is_compatible(port, "swconfig,port"))
+			continue;
+
+		if (of_property_read_string(port, "swconfig,segment", &segment))
+			continue;
+
+		prop = of_get_property(port, "swconfig,portmap", &size);
+		if (!prop)
+			continue;
+
+		if (size != (2 * sizeof(*prop))) {
+			pr_err("%s: failed to parse port mapping\n",
+					port->name);
+			continue;
+		}
+
+		phys = be32_to_cpup(prop++);
+		if ((phys < 0) | (phys >= dev->ports)) {
+			pr_err("%s: physical port index out of range\n",
+					port->name);
+			continue;
+		}
+
+		dev->portmap[phys].s = kstrdup(segment, GFP_KERNEL);
+		dev->portmap[phys].virt = be32_to_cpup(prop);
+		pr_debug("Found port: %s, physical: %d, virtual: %d\n",
+			segment, phys, dev->portmap[phys].virt);
+	}
+}
+#endif
+
+int
+register_switch(struct switch_dev *dev, struct net_device *netdev)
+{
+	struct switch_dev *sdev;
+	const int max_switches = 8 * sizeof(unsigned long);
+	unsigned long in_use = 0;
+	int err;
+	int i;
+
+	INIT_LIST_HEAD(&dev->dev_list);
+	if (netdev) {
+		dev->netdev = netdev;
+		if (!dev->alias)
+			dev->alias = netdev->name;
+	}
+	BUG_ON(!dev->alias);
+
+	if (dev->ports > 0) {
+		dev->portbuf = kzalloc(sizeof(struct switch_port) *
+				dev->ports, GFP_KERNEL);
+		if (!dev->portbuf)
+			return -ENOMEM;
+		dev->portmap = kzalloc(sizeof(struct switch_portmap) *
+				dev->ports, GFP_KERNEL);
+		if (!dev->portmap) {
+			kfree(dev->portbuf);
+			return -ENOMEM;
+		}
+	}
+	swconfig_defaults_init(dev);
+	mutex_init(&dev->sw_mutex);
+	swconfig_lock();
+	dev->id = ++swdev_id;
+
+	list_for_each_entry(sdev, &swdevs, dev_list) {
+		if (!sscanf(sdev->devname, SWCONFIG_DEVNAME, &i))
+			continue;
+		if (i < 0 || i > max_switches)
+			continue;
+
+		set_bit(i, &in_use);
+	}
+	i = find_first_zero_bit(&in_use, max_switches);
+
+	if (i == max_switches) {
+		swconfig_unlock();
+		return -ENFILE;
+	}
+
+#ifdef CONFIG_OF
+	if (dev->ports)
+		of_switch_load_portmap(dev);
+#endif
+
+	/* fill device name */
+	snprintf(dev->devname, IFNAMSIZ, SWCONFIG_DEVNAME, i);
+
+	list_add(&dev->dev_list, &swdevs);
+	swconfig_unlock();
+
+	err = swconfig_create_led_trigger(dev);
+	if (err)
+		return err;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(register_switch);
+
+void
+unregister_switch(struct switch_dev *dev)
+{
+	swconfig_destroy_led_trigger(dev);
+	kfree(dev->portbuf);
+	mutex_lock(&dev->sw_mutex);
+	swconfig_lock();
+	list_del(&dev->dev_list);
+	swconfig_unlock();
+	mutex_unlock(&dev->sw_mutex);
+}
+EXPORT_SYMBOL_GPL(unregister_switch);
+
+
+static int __init
+swconfig_init(void)
+{
+	int i, err;
+
+	INIT_LIST_HEAD(&swdevs);
+	
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,13,0))
+	err = genl_register_family(&switch_fam);
+	if (err)
+		return err;
+
+	for (i = 0; i < ARRAY_SIZE(swconfig_ops); i++) {
+		err = genl_register_ops(&switch_fam, &swconfig_ops[i]);
+		if (err)
+			goto unregister;
+	}
+#else
+	err = genl_register_family_with_ops(&switch_fam, swconfig_ops);
+	if (err)
+		return err;
+#endif
+	return 0;
+
+unregister:
+	genl_unregister_family(&switch_fam);
+	return err;
+}
+
+static void __exit
+swconfig_exit(void)
+{
+	genl_unregister_family(&switch_fam);
+}
+
+module_init(swconfig_init);
+module_exit(swconfig_exit);
+
diff --git a/drivers/net/phy/swconfig_leds.c b/drivers/net/phy/swconfig_leds.c
new file mode 100644
index 0000000..abd7bed
--- /dev/null
+++ b/drivers/net/phy/swconfig_leds.c
@@ -0,0 +1,354 @@
+/*
+ * swconfig_led.c: LED trigger support for the switch configuration API
+ *
+ * Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ */
+
+#ifdef CONFIG_SWCONFIG_LEDS
+
+#include <linux/leds.h>
+#include <linux/ctype.h>
+#include <linux/device.h>
+#include <linux/workqueue.h>
+
+#define SWCONFIG_LED_TIMER_INTERVAL	(HZ / 10)
+#define SWCONFIG_LED_NUM_PORTS		32
+
+struct switch_led_trigger {
+	struct led_trigger trig;
+	struct switch_dev *swdev;
+
+	struct delayed_work sw_led_work;
+	u32 port_mask;
+	u32 port_link;
+	unsigned long port_traffic[SWCONFIG_LED_NUM_PORTS];
+};
+
+struct swconfig_trig_data {
+	struct led_classdev *led_cdev;
+	struct switch_dev *swdev;
+
+	rwlock_t lock;
+	u32 port_mask;
+
+	bool prev_link;
+	unsigned long prev_traffic;
+	enum led_brightness prev_brightness;
+};
+
+static void
+swconfig_trig_set_brightness(struct swconfig_trig_data *trig_data,
+			     enum led_brightness brightness)
+{
+	led_set_brightness(trig_data->led_cdev, brightness);
+	trig_data->prev_brightness = brightness;
+}
+
+static void
+swconfig_trig_update_port_mask(struct led_trigger *trigger)
+{
+	struct list_head *entry;
+	struct switch_led_trigger *sw_trig;
+	u32 port_mask;
+
+	if (!trigger)
+		return;
+
+	sw_trig = (void *) trigger;
+
+	port_mask = 0;
+	read_lock(&trigger->leddev_list_lock);
+	list_for_each(entry, &trigger->led_cdevs) {
+		struct led_classdev *led_cdev;
+		struct swconfig_trig_data *trig_data;
+
+		led_cdev = list_entry(entry, struct led_classdev, trig_list);
+		trig_data = led_cdev->trigger_data;
+		if (trig_data) {
+			read_lock(&trig_data->lock);
+			port_mask |= trig_data->port_mask;
+			read_unlock(&trig_data->lock);
+		}
+	}
+	read_unlock(&trigger->leddev_list_lock);
+
+	sw_trig->port_mask = port_mask;
+
+	if (port_mask)
+		schedule_delayed_work(&sw_trig->sw_led_work,
+				      SWCONFIG_LED_TIMER_INTERVAL);
+	else
+		cancel_delayed_work_sync(&sw_trig->sw_led_work);
+}
+
+static ssize_t
+swconfig_trig_port_mask_store(struct device *dev, struct device_attribute *attr,
+			      const char *buf, size_t size)
+{
+	struct led_classdev *led_cdev = dev_get_drvdata(dev);
+	struct swconfig_trig_data *trig_data = led_cdev->trigger_data;
+	unsigned long port_mask;
+	ssize_t ret = -EINVAL;
+	char *after;
+	size_t count;
+
+	port_mask = simple_strtoul(buf, &after, 16);
+	count =	after - buf;
+
+	if (*after && isspace(*after))
+		count++;
+
+	if (count == size) {
+		bool changed;
+
+		write_lock(&trig_data->lock);
+
+		changed = (trig_data->port_mask != port_mask);
+		if (changed) {
+			trig_data->port_mask = port_mask;
+			if (port_mask == 0)
+				swconfig_trig_set_brightness(trig_data, LED_OFF);
+		}
+
+		write_unlock(&trig_data->lock);
+
+		if (changed)
+			swconfig_trig_update_port_mask(led_cdev->trigger);
+
+		ret = count;
+	}
+
+	return ret;
+}
+
+static ssize_t
+swconfig_trig_port_mask_show(struct device *dev, struct device_attribute *attr,
+			     char *buf)
+{
+	struct led_classdev *led_cdev = dev_get_drvdata(dev);
+	struct swconfig_trig_data *trig_data = led_cdev->trigger_data;
+
+	read_lock(&trig_data->lock);
+	sprintf(buf, "%#x\n", trig_data->port_mask);
+	read_unlock(&trig_data->lock);
+
+	return strlen(buf) + 1;
+}
+
+static DEVICE_ATTR(port_mask, 0644, swconfig_trig_port_mask_show,
+		   swconfig_trig_port_mask_store);
+
+static void
+swconfig_trig_activate(struct led_classdev *led_cdev)
+{
+	struct switch_led_trigger *sw_trig;
+	struct swconfig_trig_data *trig_data;
+	int err;
+
+	if (led_cdev->trigger->activate != swconfig_trig_activate)
+		return;
+
+	trig_data = kzalloc(sizeof(struct swconfig_trig_data), GFP_KERNEL);
+	if (!trig_data)
+		return;
+
+	sw_trig = (void *) led_cdev->trigger;
+
+	rwlock_init(&trig_data->lock);
+	trig_data->led_cdev = led_cdev;
+	trig_data->swdev = sw_trig->swdev;
+	led_cdev->trigger_data = trig_data;
+
+	err = device_create_file(led_cdev->dev, &dev_attr_port_mask);
+	if (err)
+		goto err_free;
+
+	return;
+
+err_free:
+	led_cdev->trigger_data = NULL;
+	kfree(trig_data);
+}
+
+static void
+swconfig_trig_deactivate(struct led_classdev *led_cdev)
+{
+	struct swconfig_trig_data *trig_data;
+
+	swconfig_trig_update_port_mask(led_cdev->trigger);
+
+	trig_data = (void *) led_cdev->trigger_data;
+	if (trig_data) {
+		device_remove_file(led_cdev->dev, &dev_attr_port_mask);
+		kfree(trig_data);
+	}
+}
+
+static void
+swconfig_trig_led_event(struct switch_led_trigger *sw_trig,
+			struct led_classdev *led_cdev)
+{
+	struct swconfig_trig_data *trig_data;
+	u32 port_mask;
+	bool link;
+
+	trig_data = led_cdev->trigger_data;
+	if (!trig_data)
+		return;
+
+	read_lock(&trig_data->lock);
+	port_mask = trig_data->port_mask;
+	read_unlock(&trig_data->lock);
+
+	link = !!(sw_trig->port_link & port_mask);
+	if (!link) {
+		if (link != trig_data->prev_link)
+			swconfig_trig_set_brightness(trig_data, LED_OFF);
+	} else {
+		unsigned long traffic;
+		int i;
+
+		traffic = 0;
+		for (i = 0; i < SWCONFIG_LED_NUM_PORTS; i++) {
+			if (port_mask & (1 << i))
+				traffic += sw_trig->port_traffic[i];
+		}
+
+		if (trig_data->prev_brightness != LED_FULL)
+			swconfig_trig_set_brightness(trig_data, LED_FULL);
+		else if (traffic != trig_data->prev_traffic)
+			swconfig_trig_set_brightness(trig_data, LED_OFF);
+
+		trig_data->prev_traffic = traffic;
+	}
+
+	trig_data->prev_link = link;
+}
+
+static void
+swconfig_trig_update_leds(struct switch_led_trigger *sw_trig)
+{
+	struct list_head *entry;
+	struct led_trigger *trigger;
+
+	trigger = &sw_trig->trig;
+	read_lock(&trigger->leddev_list_lock);
+	list_for_each(entry, &trigger->led_cdevs) {
+		struct led_classdev *led_cdev;
+
+		led_cdev = list_entry(entry, struct led_classdev, trig_list);
+		swconfig_trig_led_event(sw_trig, led_cdev);
+	}
+	read_unlock(&trigger->leddev_list_lock);
+}
+
+static void
+swconfig_led_work_func(struct work_struct *work)
+{
+	struct switch_led_trigger *sw_trig;
+	struct switch_dev *swdev;
+	u32 port_mask;
+	u32 link;
+	int i;
+
+	sw_trig = container_of(work, struct switch_led_trigger,
+			       sw_led_work.work);
+
+	port_mask = sw_trig->port_mask;
+	swdev = sw_trig->swdev;
+
+	link = 0;
+	for (i = 0; i < SWCONFIG_LED_NUM_PORTS; i++) {
+		u32 port_bit;
+
+		port_bit = BIT(i);
+		if ((port_mask & port_bit) == 0)
+			continue;
+
+		if (swdev->ops->get_port_link) {
+			struct switch_port_link port_link;
+
+			memset(&port_link, '\0', sizeof(port_link));
+			swdev->ops->get_port_link(swdev, i, &port_link);
+
+			if (port_link.link)
+				link |= port_bit;
+		}
+
+		if (swdev->ops->get_port_stats) {
+			struct switch_port_stats port_stats;
+
+			memset(&port_stats, '\0', sizeof(port_stats));
+			swdev->ops->get_port_stats(swdev, i, &port_stats);
+			sw_trig->port_traffic[i] = port_stats.tx_bytes +
+						   port_stats.rx_bytes;
+		}
+	}
+
+	sw_trig->port_link = link;
+
+	swconfig_trig_update_leds(sw_trig);
+
+	schedule_delayed_work(&sw_trig->sw_led_work,
+			      SWCONFIG_LED_TIMER_INTERVAL);
+}
+
+static int
+swconfig_create_led_trigger(struct switch_dev *swdev)
+{
+	struct switch_led_trigger *sw_trig;
+	int err;
+
+	if (!swdev->ops->get_port_link)
+		return 0;
+
+	sw_trig = kzalloc(sizeof(struct switch_led_trigger), GFP_KERNEL);
+	if (!sw_trig)
+		return -ENOMEM;
+
+	sw_trig->swdev = swdev;
+	sw_trig->trig.name = swdev->devname;
+	sw_trig->trig.activate = swconfig_trig_activate;
+	sw_trig->trig.deactivate = swconfig_trig_deactivate;
+
+	INIT_DELAYED_WORK(&sw_trig->sw_led_work, swconfig_led_work_func);
+
+	err = led_trigger_register(&sw_trig->trig);
+	if (err)
+		goto err_free;
+
+	swdev->led_trigger = sw_trig;
+
+	return 0;
+
+err_free:
+	kfree(sw_trig);
+	return err;
+}
+
+static void
+swconfig_destroy_led_trigger(struct switch_dev *swdev)
+{
+	struct switch_led_trigger *sw_trig;
+
+	sw_trig = swdev->led_trigger;
+	if (sw_trig) {
+		cancel_delayed_work_sync(&sw_trig->sw_led_work);
+		led_trigger_unregister(&sw_trig->trig);
+		kfree(sw_trig);
+	}
+}
+
+#else /* SWCONFIG_LEDS */
+static inline int
+swconfig_create_led_trigger(struct switch_dev *swdev) { return 0; }
+
+static inline void
+swconfig_destroy_led_trigger(struct switch_dev *swdev) { }
+#endif /* CONFIG_SWCONFIG_LEDS */
diff --git a/include/linux/switch.h b/include/linux/switch.h
new file mode 100644
index 0000000..b53431e
--- /dev/null
+++ b/include/linux/switch.h
@@ -0,0 +1,167 @@
+/*
+ * switch.h: Switch configuration API
+ *
+ * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * 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.
+ */
+#ifndef _LINUX_SWITCH_H
+#define _LINUX_SWITCH_H
+
+#include <net/genetlink.h>
+#include <uapi/linux/switch.h>
+
+struct switch_dev;
+struct switch_op;
+struct switch_val;
+struct switch_attr;
+struct switch_attrlist;
+struct switch_led_trigger;
+
+int register_switch(struct switch_dev *dev, struct net_device *netdev);
+void unregister_switch(struct switch_dev *dev);
+
+/**
+ * struct switch_attrlist - attribute list
+ *
+ * @n_attr: number of attributes
+ * @attr: pointer to the attributes array
+ */
+struct switch_attrlist {
+	int n_attr;
+	const struct switch_attr *attr;
+};
+
+enum switch_port_speed {
+	SWITCH_PORT_SPEED_UNKNOWN = 0,
+	SWITCH_PORT_SPEED_10 = 10,
+	SWITCH_PORT_SPEED_100 = 100,
+	SWITCH_PORT_SPEED_1000 = 1000,
+};
+
+struct switch_port_link {
+	bool link;
+	bool duplex;
+	bool aneg;
+	bool tx_flow;
+	bool rx_flow;
+	enum switch_port_speed speed;
+};
+
+struct switch_port_stats {
+	unsigned long tx_bytes;
+	unsigned long rx_bytes;
+};
+
+/**
+ * struct switch_dev_ops - switch driver operations
+ *
+ * @attr_global: global switch attribute list
+ * @attr_port: port attribute list
+ * @attr_vlan: vlan attribute list
+ *
+ * Callbacks:
+ *
+ * @get_vlan_ports: read the port list of a VLAN
+ * @set_vlan_ports: set the port list of a VLAN
+ *
+ * @get_port_pvid: get the primary VLAN ID of a port
+ * @set_port_pvid: set the primary VLAN ID of a port
+ *
+ * @apply_config: apply all changed settings to the switch
+ * @reset_switch: resetting the switch
+ */
+struct switch_dev_ops {
+	struct switch_attrlist attr_global, attr_port, attr_vlan;
+
+	int (*get_vlan_ports)(struct switch_dev *dev, struct switch_val *val);
+	int (*set_vlan_ports)(struct switch_dev *dev, struct switch_val *val);
+
+	int (*get_port_pvid)(struct switch_dev *dev, int port, int *val);
+	int (*set_port_pvid)(struct switch_dev *dev, int port, int val);
+
+	int (*apply_config)(struct switch_dev *dev);
+	int (*reset_switch)(struct switch_dev *dev);
+
+	int (*get_port_link)(struct switch_dev *dev, int port,
+			     struct switch_port_link *link);
+	int (*get_port_stats)(struct switch_dev *dev, int port,
+			      struct switch_port_stats *stats);
+};
+
+struct switch_dev {
+	struct device_node *of_node;
+	const struct switch_dev_ops *ops;
+	/* will be automatically filled */
+	char devname[IFNAMSIZ];
+
+	const char *name;
+	/* NB: either alias or netdev must be set */
+	const char *alias;
+	struct net_device *netdev;
+
+	int ports;
+	int vlans;
+	int cpu_port;
+
+	/* the following fields are internal for swconfig */
+	int id;
+	struct list_head dev_list;
+	unsigned long def_global, def_port, def_vlan;
+
+	struct mutex sw_mutex;
+	struct switch_port *portbuf;
+	struct switch_portmap *portmap;
+
+	char buf[128];
+
+#ifdef CONFIG_SWCONFIG_LEDS
+	struct switch_led_trigger *led_trigger;
+#endif
+};
+
+struct switch_port {
+	u32 id;
+	u32 flags;
+};
+
+struct switch_portmap {
+	u32 virt;
+	const char *s;
+};
+
+struct switch_val {
+	const struct switch_attr *attr;
+	int port_vlan;
+	int len;
+	union {
+		const char *s;
+		u32 i;
+		struct switch_port *ports;
+	} value;
+};
+
+struct switch_attr {
+	int disabled;
+	int type;
+	const char *name;
+	const char *description;
+
+	int (*set)(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val);
+	int (*get)(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val);
+
+	/* for driver internal use */
+	int id;
+	int ofs;
+	int max;
+};
+
+#endif /* _LINUX_SWITCH_H */
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index 3ce25b5..b9565df 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -365,6 +365,7 @@ header-y += stddef.h
 header-y += string.h
 header-y += suspend_ioctls.h
 header-y += swab.h
+header-y += switch.h
 header-y += synclink.h
 header-y += sysctl.h
 header-y += sysinfo.h
diff --git a/include/uapi/linux/switch.h b/include/uapi/linux/switch.h
new file mode 100644
index 0000000..a59b239
--- /dev/null
+++ b/include/uapi/linux/switch.h
@@ -0,0 +1,103 @@
+/*
+ * switch.h: Switch configuration API
+ *
+ * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * 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.
+ */
+
+#ifndef _UAPI_LINUX_SWITCH_H
+#define _UAPI_LINUX_SWITCH_H
+
+#include <linux/types.h>
+#include <linux/netdevice.h>
+#include <linux/netlink.h>
+#include <linux/genetlink.h>
+#ifndef __KERNEL__
+#include <netlink/netlink.h>
+#include <netlink/genl/genl.h>
+#include <netlink/genl/ctrl.h>
+#endif
+
+/* main attributes */
+enum {
+	SWITCH_ATTR_UNSPEC,
+	/* global */
+	SWITCH_ATTR_TYPE,
+	/* device */
+	SWITCH_ATTR_ID,
+	SWITCH_ATTR_DEV_NAME,
+	SWITCH_ATTR_ALIAS,
+	SWITCH_ATTR_NAME,
+	SWITCH_ATTR_VLANS,
+	SWITCH_ATTR_PORTS,
+	SWITCH_ATTR_PORTMAP,
+	SWITCH_ATTR_CPU_PORT,
+	/* attributes */
+	SWITCH_ATTR_OP_ID,
+	SWITCH_ATTR_OP_TYPE,
+	SWITCH_ATTR_OP_NAME,
+	SWITCH_ATTR_OP_PORT,
+	SWITCH_ATTR_OP_VLAN,
+	SWITCH_ATTR_OP_VALUE_INT,
+	SWITCH_ATTR_OP_VALUE_STR,
+	SWITCH_ATTR_OP_VALUE_PORTS,
+	SWITCH_ATTR_OP_DESCRIPTION,
+	/* port lists */
+	SWITCH_ATTR_PORT,
+	SWITCH_ATTR_MAX
+};
+
+enum {
+	/* port map */
+	SWITCH_PORTMAP_PORTS,
+	SWITCH_PORTMAP_SEGMENT,
+	SWITCH_PORTMAP_VIRT,
+	SWITCH_PORTMAP_MAX
+};
+
+/* commands */
+enum {
+	SWITCH_CMD_UNSPEC,
+	SWITCH_CMD_GET_SWITCH,
+	SWITCH_CMD_NEW_ATTR,
+	SWITCH_CMD_LIST_GLOBAL,
+	SWITCH_CMD_GET_GLOBAL,
+	SWITCH_CMD_SET_GLOBAL,
+	SWITCH_CMD_LIST_PORT,
+	SWITCH_CMD_GET_PORT,
+	SWITCH_CMD_SET_PORT,
+	SWITCH_CMD_LIST_VLAN,
+	SWITCH_CMD_GET_VLAN,
+	SWITCH_CMD_SET_VLAN
+};
+
+/* data types */
+enum switch_val_type {
+	SWITCH_TYPE_UNSPEC,
+	SWITCH_TYPE_INT,
+	SWITCH_TYPE_STRING,
+	SWITCH_TYPE_PORTS,
+	SWITCH_TYPE_NOVAL,
+};
+
+/* port nested attributes */
+enum {
+	SWITCH_PORT_UNSPEC,
+	SWITCH_PORT_ID,
+	SWITCH_PORT_FLAG_TAGGED,
+	SWITCH_PORT_ATTR_MAX
+};
+
+#define SWITCH_ATTR_DEFAULTS_OFFSET	0x1000
+
+
+#endif /* _UAPI_LINUX_SWITCH_H */
-- 
1.8.5.3

