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130 lines
3.0 KiB
C
130 lines
3.0 KiB
C
#ifndef _SCSI_SG_H
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#define _SCSI_SG_H
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#define SG_DXFER_NONE -1
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#define SG_DXFER_TO_DEV -2
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#define SG_DXFER_FROM_DEV -3
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#define SG_DXFER_TO_FROM_DEV -4
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#define SG_FLAG_DIRECT_IO 1
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#define SG_FLAG_LUN_INHIBIT 2
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#define SG_FLAG_NO_DXFER 0x10000
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#define SG_INFO_OK_MASK 0x1
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#define SG_INFO_OK 0x0
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#define SG_INFO_CHECK 0x1
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#define SG_INFO_DIRECT_IO_MASK 0x6
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#define SG_INFO_INDIRECT_IO 0x0
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#define SG_INFO_DIRECT_IO 0x2
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#define SG_INFO_MIXED_IO 0x4
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#define SG_EMULATED_HOST 0x2203
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#define SG_SET_TRANSFORM 0x2204
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#define SG_GET_TRANSFORM 0x2205
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#define SG_SET_RESERVED_SIZE 0x2275
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#define SG_GET_RESERVED_SIZE 0x2272
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#define SG_GET_SCSI_ID 0x2276
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#define SG_SET_FORCE_LOW_DMA 0x2279
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#define SG_GET_LOW_DMA 0x227a
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#define SG_SET_FORCE_PACK_ID 0x227b
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#define SG_GET_PACK_ID 0x227c
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#define SG_GET_NUM_WAITING 0x227d
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#define SG_GET_SG_TABLESIZE 0x227F
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#define SG_GET_VERSION_NUM 0x2282
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#define SG_SCSI_RESET 0x2284
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#define SG_SCSI_RESET_NOTHING 0
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#define SG_SCSI_RESET_DEVICE 1
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#define SG_SCSI_RESET_BUS 2
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#define SG_SCSI_RESET_HOST 3
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#define SG_IO 0x2285
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#define SG_GET_REQUEST_TABLE 0x2286
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#define SG_SET_KEEP_ORPHAN 0x2287
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#define SG_GET_KEEP_ORPHAN 0x2288
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#define SG_SCATTER_SZ (8 * 4096)
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#define SG_DEFAULT_RETRIES 1
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#define SG_DEF_FORCE_LOW_DMA 0
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#define SG_DEF_FORCE_PACK_ID 0
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#define SG_DEF_KEEP_ORPHAN 0
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#define SG_DEF_RESERVED_SIZE SG_SCATTER_SZ
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#define SG_MAX_QUEUE 16
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#define SG_BIG_BUFF SG_DEF_RESERVED_SIZE
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#define SG_MAX_SENSE 16
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#define SG_SET_TIMEOUT 0x2201
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#define SG_GET_TIMEOUT 0x2202
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#define SG_GET_COMMAND_Q 0x2270
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#define SG_SET_COMMAND_Q 0x2271
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#define SG_SET_DEBUG 0x227e
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#define SG_NEXT_CMD_LEN 0x2283
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#define SG_DEFAULT_TIMEOUT (60*100) /* 60*HZ */
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#define SG_DEF_COMMAND_Q 0
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#define SG_DEF_UNDERRUN_FLAG 0
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typedef struct sg_iovec {
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void *iov_base;
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unsigned long iov_len;
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} sg_iovec_t;
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typedef struct sg_io_hdr {
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int interface_id;
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int dxfer_direction;
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unsigned char cmd_len;
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unsigned char mx_sb_len;
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unsigned short iovec_count;
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unsigned dxfer_len;
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void *dxferp;
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unsigned char *cmdp;
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unsigned char *sbp;
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unsigned timeout;
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unsigned flags;
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int pack_id;
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void *usr_ptr;
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unsigned char status;
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unsigned char masked_status;
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unsigned char msg_status;
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unsigned char sb_len_wr;
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unsigned short host_status;
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unsigned short driver_status;
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int resid;
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unsigned int duration;
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unsigned int info;
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} sg_io_hdr_t;
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struct sg_scsi_id {
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int host_no;
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int channel;
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int scsi_id;
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int lun;
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int scsi_type;
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short h_cmd_per_lun;
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short d_queue_depth;
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int unused[2];
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};
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typedef struct sg_req_info {
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char req_state;
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char orphan;
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char sg_io_owned;
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char problem;
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int pack_id;
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void *usr_ptr;
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unsigned duration;
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int unused;
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} sg_req_info_t;
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typedef struct sg_io_hdr Sg_io_hdr;
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typedef struct sg_io_vec Sg_io_vec;
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typedef struct sg_scsi_id Sg_scsi_id;
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typedef struct sg_req_info Sg_req_info;
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struct sg_header {
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int pack_len;
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int reply_len;
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int pack_id;
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int result;
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unsigned twelve_byte:1;
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unsigned target_status:5;
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unsigned host_status:8;
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unsigned driver_status:8;
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unsigned other_flags:10;
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unsigned char sense_buffer[SG_MAX_SENSE];
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};
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#endif
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