1#ifndef _SCSI_SG_H 2#define _SCSI_SG_H 3 4#define SG_DXFER_NONE -1 5#define SG_DXFER_TO_DEV -2 6#define SG_DXFER_FROM_DEV -3 7#define SG_DXFER_TO_FROM_DEV -4 8#define SG_FLAG_DIRECT_IO 1 9#define SG_FLAG_LUN_INHIBIT 2 10#define SG_FLAG_NO_DXFER 0x10000 11#define SG_INFO_OK_MASK 0x1 12#define SG_INFO_OK 0x0 13#define SG_INFO_CHECK 0x1 14#define SG_INFO_DIRECT_IO_MASK 0x6 15#define SG_INFO_INDIRECT_IO 0x0 16#define SG_INFO_DIRECT_IO 0x2 17#define SG_INFO_MIXED_IO 0x4 18#define SG_EMULATED_HOST 0x2203 19#define SG_SET_TRANSFORM 0x2204 20#define SG_GET_TRANSFORM 0x2205 21#define SG_SET_RESERVED_SIZE 0x2275 22#define SG_GET_RESERVED_SIZE 0x2272 23#define SG_GET_SCSI_ID 0x2276 24#define SG_SET_FORCE_LOW_DMA 0x2279 25#define SG_GET_LOW_DMA 0x227a 26#define SG_SET_FORCE_PACK_ID 0x227b 27#define SG_GET_PACK_ID 0x227c 28#define SG_GET_NUM_WAITING 0x227d 29#define SG_GET_SG_TABLESIZE 0x227F 30#define SG_GET_VERSION_NUM 0x2282 31#define SG_SCSI_RESET 0x2284 32#define SG_SCSI_RESET_NOTHING 0 33#define SG_SCSI_RESET_DEVICE 1 34#define SG_SCSI_RESET_BUS 2 35#define SG_SCSI_RESET_HOST 3 36#define SG_IO 0x2285 37#define SG_GET_REQUEST_TABLE 0x2286 38#define SG_SET_KEEP_ORPHAN 0x2287 39#define SG_GET_KEEP_ORPHAN 0x2288 40#define SG_SCATTER_SZ (8 * 4096) 41#define SG_DEFAULT_RETRIES 1 42#define SG_DEF_FORCE_LOW_DMA 0 43#define SG_DEF_FORCE_PACK_ID 0 44#define SG_DEF_KEEP_ORPHAN 0 45#define SG_DEF_RESERVED_SIZE SG_SCATTER_SZ 46#define SG_MAX_QUEUE 16 47#define SG_BIG_BUFF SG_DEF_RESERVED_SIZE 48#define SG_MAX_SENSE 16 49#define SG_SET_TIMEOUT 0x2201 50#define SG_GET_TIMEOUT 0x2202 51#define SG_GET_COMMAND_Q 0x2270 52#define SG_SET_COMMAND_Q 0x2271 53#define SG_SET_DEBUG 0x227e 54#define SG_NEXT_CMD_LEN 0x2283 55#define SG_DEFAULT_TIMEOUT (60*100) /* 60*HZ */ 56#define SG_DEF_COMMAND_Q 0 57#define SG_DEF_UNDERRUN_FLAG 0 58 59typedef struct sg_iovec { 60 void *iov_base; 61 unsigned long iov_len; 62} sg_iovec_t; 63 64typedef struct sg_io_hdr { 65 int interface_id; 66 int dxfer_direction; 67 unsigned char cmd_len; 68 unsigned char mx_sb_len; 69 unsigned short iovec_count; 70 unsigned dxfer_len; 71 void *dxferp; 72 unsigned char *cmdp; 73 unsigned char *sbp; 74 unsigned timeout; 75 unsigned flags; 76 int pack_id; 77 void *usr_ptr; 78 unsigned char status; 79 unsigned char masked_status; 80 unsigned char msg_status; 81 unsigned char sb_len_wr; 82 unsigned short host_status; 83 unsigned short driver_status; 84 int resid; 85 unsigned int duration; 86 unsigned int info; 87} sg_io_hdr_t; 88 89struct sg_scsi_id { 90 int host_no; 91 int channel; 92 int scsi_id; 93 int lun; 94 int scsi_type; 95 short h_cmd_per_lun; 96 short d_queue_depth; 97 int unused[2]; 98}; 99 100typedef struct sg_req_info { 101 char req_state; 102 char orphan; 103 char sg_io_owned; 104 char problem; 105 int pack_id; 106 void *usr_ptr; 107 unsigned duration; 108 int unused; 109} sg_req_info_t; 110 111typedef struct sg_io_hdr Sg_io_hdr; 112typedef struct sg_io_vec Sg_io_vec; 113typedef struct sg_scsi_id Sg_scsi_id; 114typedef struct sg_req_info Sg_req_info; 115 116struct sg_header { 117 int pack_len; 118 int reply_len; 119 int pack_id; 120 int result; 121 unsigned twelve_byte:1; 122 unsigned target_status:5; 123 unsigned host_status:8; 124 unsigned driver_status:8; 125 unsigned other_flags:10; 126 unsigned char sense_buffer[SG_MAX_SENSE]; 127}; 128 129#endif 130