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- #ifndef _SCSI_SG_H
- #define _SCSI_SG_H 1
- #include <features.h>
- typedef struct sg_iovec
- {
- void * iov_base;
- size_t iov_len;
- } sg_iovec_t;
- typedef struct sg_io_hdr
- {
- int interface_id;
- int dxfer_direction;
- unsigned char cmd_len;
- unsigned char mx_sb_len;
- unsigned short int iovec_count;
- unsigned int dxfer_len;
- void * dxferp;
- unsigned char * cmdp;
- unsigned char * sbp;
- unsigned int timeout;
- unsigned int flags;
- int pack_id;
- void * usr_ptr;
- unsigned char status;
- unsigned char masked_status;
- unsigned char msg_status;
- unsigned char sb_len_wr;
- unsigned short int host_status;
- unsigned short int driver_status;
- int resid;
- unsigned int duration;
- unsigned int info;
- } sg_io_hdr_t;
- #define SG_DXFER_NONE -1
- #define SG_DXFER_TO_DEV -2
- #define SG_DXFER_FROM_DEV -3
- #define SG_DXFER_TO_FROM_DEV -4
- #define SG_FLAG_DIRECT_IO 1
- #define SG_FLAG_LUN_INHIBIT 2
-
- #define SG_FLAG_NO_DXFER 0x10000
-
- #define SG_INFO_OK_MASK 0x1
- #define SG_INFO_OK 0x0
- #define SG_INFO_CHECK 0x1
- #define SG_INFO_DIRECT_IO_MASK 0x6
- #define SG_INFO_INDIRECT_IO 0x0
- #define SG_INFO_DIRECT_IO 0x2
- #define SG_INFO_MIXED_IO 0x4
- struct sg_scsi_id {
-
- int host_no;
- int channel;
-
- int scsi_id;
- int lun;
-
- int scsi_type;
-
- short int h_cmd_per_lun;
-
- short int d_queue_depth;
-
- int unused[2];
- };
- typedef struct sg_req_info {
- char req_state;
- char orphan;
- char sg_io_owned;
- char problem;
- int pack_id;
- void * usr_ptr;
- unsigned int duration;
- int unused;
- } sg_req_info_t;
- #define SG_EMULATED_HOST 0x2203
- #define SG_SET_TRANSFORM 0x2204
-
- #define SG_GET_TRANSFORM 0x2205
- #define SG_SET_RESERVED_SIZE 0x2275
- #define SG_GET_RESERVED_SIZE 0x2272
- #define SG_GET_SCSI_ID 0x2276
- #define SG_SET_FORCE_LOW_DMA 0x2279
- #define SG_GET_LOW_DMA 0x227a
- #define SG_SET_FORCE_PACK_ID 0x227b
- #define SG_GET_PACK_ID 0x227c
- #define SG_GET_NUM_WAITING 0x227d
- #define SG_GET_SG_TABLESIZE 0x227F
- #define SG_GET_VERSION_NUM 0x2282
- #define SG_SCSI_RESET 0x2284
- #define SG_SCSI_RESET_NOTHING 0
- #define SG_SCSI_RESET_DEVICE 1
- #define SG_SCSI_RESET_BUS 2
- #define SG_SCSI_RESET_HOST 3
- #define SG_IO 0x2285
- #define SG_GET_REQUEST_TABLE 0x2286
- #define SG_SET_KEEP_ORPHAN 0x2287
- #define SG_GET_KEEP_ORPHAN 0x2288
- #define SG_SCATTER_SZ (8 * 4096)
- #define SG_DEFAULT_RETRIES 1
- #define SG_DEF_FORCE_LOW_DMA 0
- #define SG_DEF_FORCE_PACK_ID 0
- #define SG_DEF_KEEP_ORPHAN 0
- #define SG_DEF_RESERVED_SIZE SG_SCATTER_SZ
- #define SG_MAX_QUEUE 16
- #define SG_BIG_BUFF SG_DEF_RESERVED_SIZE
- typedef struct sg_io_hdr Sg_io_hdr;
- typedef struct sg_io_vec Sg_io_vec;
- typedef struct sg_scsi_id Sg_scsi_id;
- typedef struct sg_req_info Sg_req_info;
- #define SG_MAX_SENSE 16
- struct sg_header
- {
-
- int pack_len;
-
- int reply_len;
-
- int pack_id;
-
- int result;
-
- unsigned int twelve_byte:1;
-
- unsigned int target_status:5;
-
- unsigned int host_status:8;
-
- unsigned int driver_status:8;
-
- unsigned int other_flags:10;
-
- unsigned char sense_buffer[SG_MAX_SENSE];
- };
- #define SG_SET_TIMEOUT 0x2201
- #define SG_GET_TIMEOUT 0x2202
- #define SG_GET_COMMAND_Q 0x2270
- #define SG_SET_COMMAND_Q 0x2271
- #define SG_SET_DEBUG 0x227e
- #define SG_NEXT_CMD_LEN 0x2283
- #define SG_DEFAULT_TIMEOUT (60*HZ)
- #define SG_DEF_COMMAND_Q 0
- #define SG_DEF_UNDERRUN_FLAG 0
- #endif
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