Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/cam/scsi/scsi_sg.h
Version:
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1 /* 2 * Structures and definitions for SCSI commands to the SG passthrough device. 3 * 4 * $FreeBSD$ 5 */ 6 7 #ifndef _SCSI_SG_H 8 #define _SCSI_SG_H 9 10 #define SGIOC '"' 11 #define SG_SET_TIMEOUT _IO(SGIOC, 0x01) 12 #define SG_GET_TIMEOUT _IO(SGIOC, 0x02) 13 #define SG_EMULATED_HOST _IO(SGIOC, 0x03) 14 #define SG_SET_TRANSFORM _IO(SGIOC, 0x04) 15 #define SG_GET_TRANSFORM _IO(SGIOC, 0x05) 16 #define SG_GET_COMMAND_Q _IO(SGIOC, 0x70) 17 #define SG_SET_COMMAND_Q _IO(SGIOC, 0x71) 18 #define SG_GET_RESERVED_SIZE _IO(SGIOC, 0x72) 19 #define SG_SET_RESERVED_SIZE _IO(SGIOC, 0x75) 20 #define SG_GET_SCSI_ID _IO(SGIOC, 0x76) 21 #define SG_SET_FORCE_LOW_DMA _IO(SGIOC, 0x79) 22 #define SG_GET_LOW_DMA _IO(SGIOC, 0x7a) 23 #define SG_SET_FORCE_PACK_ID _IO(SGIOC, 0x7b) 24 #define SG_GET_PACK_ID _IO(SGIOC, 0x7c) 25 #define SG_GET_NUM_WAITING _IO(SGIOC, 0x7d) 26 #define SG_SET_DEBUG _IO(SGIOC, 0x7e) 27 #define SG_GET_SG_TABLESIZE _IO(SGIOC, 0x7f) 28 #define SG_GET_VERSION_NUM _IO(SGIOC, 0x82) 29 #define SG_NEXT_CMD_LEN _IO(SGIOC, 0x83) 30 #define SG_SCSI_RESET _IO(SGIOC, 0x84) 31 #define SG_IO _IO(SGIOC, 0x85) 32 #define SG_GET_REQUEST_TABLE _IO(SGIOC, 0x86) 33 #define SG_SET_KEEP_ORPHAN _IO(SGIOC, 0x87) 34 #define SG_GET_KEEP_ORPHAN _IO(SGIOC, 0x88) 35 #define SG_GET_ACCESS_COUNT _IO(SGIOC, 0x89) 36 37 struct sg_io_hdr { 38 int interface_id; 39 int dxfer_direction; 40 u_char cmd_len; 41 u_char mx_sb_len; 42 u_short iovec_count; 43 u_int dxfer_len; 44 void *dxferp; 45 u_char *cmdp; 46 u_char *sbp; 47 u_int timeout; 48 u_int flags; 49 int pack_id; 50 void *usr_ptr; 51 u_char status; 52 u_char masked_status; 53 u_char msg_status; 54 u_char sb_len_wr; 55 u_short host_status; 56 u_short driver_status; 57 int resid; 58 u_int duration; 59 u_int info; 60 }; 61 62 #define SG_DXFER_NONE -1 63 #define SG_DXFER_TO_DEV -2 64 #define SG_DXFER_FROM_DEV -3 65 #define SG_DXFER_TO_FROM_DEV -4 66 #define SG_DXFER_UNKNOWN -5 67 68 #define SG_MAX_SENSE 16 69 struct sg_header { 70 int pack_len; 71 int reply_len; 72 int pack_id; 73 int result; 74 u_int twelve_byte:1; 75 u_int target_status:5; 76 u_int host_status:8; 77 u_int driver_status:8; 78 u_int other_flags:10; 79 u_char sense_buffer[SG_MAX_SENSE]; 80 }; 81 82 struct sg_scsi_id { 83 int host_no; 84 int channel; 85 int scsi_id; 86 int lun; 87 int scsi_type; 88 short h_cmd_per_lun; 89 short d_queue_depth; 90 int unused[2]; 91 }; 92 93 struct scsi_idlun { 94 uint32_t dev_id; 95 uint32_t host_unique_id; 96 }; 97 98 /* 99 * Host codes 100 */ 101 #define DID_OK 0x00 /* OK */ 102 #define DID_NO_CONNECT 0x01 /* timeout during connect */ 103 #define DID_BUS_BUSY 0x02 /* timeout during command */ 104 #define DID_TIME_OUT 0x03 /* other timeout */ 105 #define DID_BAD_TARGET 0x04 /* bad target */ 106 #define DID_ABORT 0x05 /* abort */ 107 #define DID_PARITY 0x06 /* parity error */ 108 #define DID_ERROR 0x07 /* internal error */ 109 #define DID_RESET 0x08 /* reset by somebody */ 110 #define DID_BAD_INTR 0x09 /* unexpected interrupt */ 111 #define DID_PASSTHROUGH 0x0a /* passthrough */ 112 #define DID_SOFT_ERROR 0x0b /* low driver wants retry */ 113 #define DID_IMM_RETRY 0x0c /* retry without decreasing retrycnt */ 114 115 /* 116 * Driver codes 117 */ 118 #define DRIVER_OK 0x00 119 #define DRIVER_BUSY 0x01 120 #define DRIVER_SOFT 0x02 121 #define DRIVER_MEDIA 0x03 122 #define DRIVER_ERROR 0x04 123 124 #define DRIVER_INVALID 0x05 125 #define DRIVER_TIMEOUT 0x06 126 #define DRIVER_HARD 0x07 127 #define DRIVER_SENSE 0x08 128 129 #define SUGGEST_RETRY 0x10 130 #define SUGGEST_ABORT 0x20 131 #define SUGGEST_REMAP 0x30 132 #define SUGGEST_DIE 0x40 133 #define SUGGEST_SENSE 0x80 134 #define SUGGEST_IS_OK 0xff 135 136 #define DRIVER_MASK 0x0f 137 #define SUGGEST_MASK 0xf0 138 139 /* Other definitions */ 140 /* HZ isn't always available, so simulate it */ 141 #define SG_DEFAULT_HZ 1000 142 #define SG_DEFAULT_TIMEOUT (60*SG_DEFAULT_HZ) 143 144 #endif /* !_SCSI_SG_H */
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