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 59 typedef struct sg_iovec { 60 void *iov_base; 61 unsigned long iov_len; 62 } sg_iovec_t; 63 64 typedef 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 89 struct 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 }; 99 100 typedef 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; 110 111 typedef struct sg_io_hdr Sg_io_hdr; 112 typedef struct sg_io_vec Sg_io_vec; 113 typedef struct sg_scsi_id Sg_scsi_id; 114 typedef struct sg_req_info Sg_req_info; 115 116 struct 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