diff options
Diffstat (limited to 'include/scsi/sg.h')
| -rw-r--r-- | include/scsi/sg.h | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/include/scsi/sg.h b/include/scsi/sg.h new file mode 100644 index 00000000..f3fd05b4 --- /dev/null +++ b/include/scsi/sg.h @@ -0,0 +1,129 @@ +#ifndef _SCSI_SG_H +#define _SCSI_SG_H + +#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 +#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 +#define SG_MAX_SENSE 16 +#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 + +typedef struct sg_iovec { + void *iov_base; + unsigned long 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 iovec_count; + unsigned dxfer_len; + void *dxferp; + unsigned char *cmdp; + unsigned char *sbp; + unsigned timeout; + unsigned 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 host_status; + unsigned short driver_status; + int resid; + unsigned int duration; + unsigned int info; +} sg_io_hdr_t; + +struct sg_scsi_id { + int host_no; + int channel; + int scsi_id; + int lun; + int scsi_type; + short h_cmd_per_lun; + short 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 duration; + int unused; +} sg_req_info_t; + +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; + +struct sg_header { + int pack_len; + int reply_len; + int pack_id; + int result; + unsigned twelve_byte:1; + unsigned target_status:5; + unsigned host_status:8; + unsigned driver_status:8; + unsigned other_flags:10; + unsigned char sense_buffer[SG_MAX_SENSE]; +}; + +#endif |