include/scsi/scsi_proto.h

   1 /*
   2  * This header file contains public constants and structures used by
   3  * both the SCSI initiator and the SCSI target code.
   4  *
   5  * For documentation on the OPCODES, MESSAGES, and SENSE values,
   6  * please consult the SCSI standard.
   7  */
   8
   9 #ifndef _SCSI_PROTO_H_
  10 #define _SCSI_PROTO_H_
  11
  12 #include <linux/types.h>
  13
  14 /*
  15  *      SCSI opcodes
  16  */
  17
  18 #define TEST_UNIT_READY       0x00
  19 #define REZERO_UNIT           0x01
  20 #define REQUEST_SENSE         0x03
  21 #define FORMAT_UNIT           0x04
  22 #define READ_BLOCK_LIMITS     0x05
  23 #define REASSIGN_BLOCKS       0x07
  24 #define INITIALIZE_ELEMENT_STATUS 0x07
  25 #define READ_6                0x08
  26 #define WRITE_6               0x0a
  27 #define SEEK_6                0x0b
  28 #define READ_REVERSE          0x0f
  29 #define WRITE_FILEMARKS       0x10
  30 #define SPACE                 0x11
  31 #define INQUIRY               0x12
  32 #define RECOVER_BUFFERED_DATA 0x14
  33 #define MODE_SELECT           0x15
  34 #define RESERVE               0x16
  35 #define RELEASE               0x17
  36 #define COPY                  0x18
  37 #define ERASE                 0x19
  38 #define MODE_SENSE            0x1a
  39 #define START_STOP            0x1b
  40 #define RECEIVE_DIAGNOSTIC    0x1c
  41 #define SEND_DIAGNOSTIC       0x1d
  42 #define ALLOW_MEDIUM_REMOVAL  0x1e
  43
  44 #define READ_FORMAT_CAPACITIES 0x23
  45 #define SET_WINDOW            0x24
  46 #define READ_CAPACITY         0x25
  47 #define READ_10               0x28
  48 #define WRITE_10              0x2a
  49 #define SEEK_10               0x2b
  50 #define POSITION_TO_ELEMENT   0x2b
  51 #define WRITE_VERIFY          0x2e
  52 #define VERIFY                0x2f
  53 #define SEARCH_HIGH           0x30
  54 #define SEARCH_EQUAL          0x31
  55 #define SEARCH_LOW            0x32
  56 #define SET_LIMITS            0x33
  57 #define PRE_FETCH             0x34
  58 #define READ_POSITION         0x34
  59 #define SYNCHRONIZE_CACHE     0x35
  60 #define LOCK_UNLOCK_CACHE     0x36
  61 #define READ_DEFECT_DATA      0x37
  62 #define MEDIUM_SCAN           0x38
  63 #define COMPARE               0x39
  64 #define COPY_VERIFY           0x3a
  65 #define WRITE_BUFFER          0x3b
  66 #define READ_BUFFER           0x3c
  67 #define UPDATE_BLOCK          0x3d
  68 #define READ_LONG             0x3e
  69 #define WRITE_LONG            0x3f
  70 #define CHANGE_DEFINITION     0x40
  71 #define WRITE_SAME            0x41
  72 #define UNMAP                 0x42
  73 #define READ_TOC              0x43
  74 #define READ_HEADER           0x44
  75 #define GET_EVENT_STATUS_NOTIFICATION 0x4a
  76 #define LOG_SELECT            0x4c
  77 #define LOG_SENSE             0x4d
  78 #define XDWRITEREAD_10        0x53
  79 #define MODE_SELECT_10        0x55
  80 #define RESERVE_10            0x56
  81 #define RELEASE_10            0x57
  82 #define MODE_SENSE_10         0x5a
  83 #define PERSISTENT_RESERVE_IN 0x5e
  84 #define PERSISTENT_RESERVE_OUT 0x5f
  85 #define VARIABLE_LENGTH_CMD   0x7f
  86 #define REPORT_LUNS           0xa0
  87 #define SECURITY_PROTOCOL_IN  0xa2
  88 #define MAINTENANCE_IN        0xa3
  89 #define MAINTENANCE_OUT       0xa4
  90 #define MOVE_MEDIUM           0xa5
  91 #define EXCHANGE_MEDIUM       0xa6
  92 #define READ_12               0xa8
  93 #define SERVICE_ACTION_OUT_12 0xa9
  94 #define WRITE_12              0xaa
  95 #define READ_MEDIA_SERIAL_NUMBER 0xab /* Obsolete with SPC-2 */
  96 #define SERVICE_ACTION_IN_12  0xab
  97 #define WRITE_VERIFY_12       0xae
  98 #define VERIFY_12             0xaf
  99 #define SEARCH_HIGH_12        0xb0
 100 #define SEARCH_EQUAL_12       0xb1
 101 #define SEARCH_LOW_12         0xb2
 102 #define SECURITY_PROTOCOL_OUT 0xb5
 103 #define READ_ELEMENT_STATUS   0xb8
 104 #define SEND_VOLUME_TAG       0xb6
 105 #define WRITE_LONG_2          0xea
 106 #define EXTENDED_COPY         0x83
 107 #define RECEIVE_COPY_RESULTS  0x84
 108 #define ACCESS_CONTROL_IN     0x86
 109 #define ACCESS_CONTROL_OUT    0x87
 110 #define READ_16               0x88
 111 #define COMPARE_AND_WRITE     0x89
 112 #define WRITE_16              0x8a
 113 #define READ_ATTRIBUTE        0x8c
 114 #define WRITE_ATTRIBUTE       0x8d
 115 #define VERIFY_16             0x8f
 116 #define SYNCHRONIZE_CACHE_16  0x91
 117 #define WRITE_SAME_16         0x93
 118 #define SERVICE_ACTION_BIDIRECTIONAL 0x9d
 119 #define SERVICE_ACTION_IN_16  0x9e
 120 #define SERVICE_ACTION_OUT_16 0x9f
 121 /* values for service action in */
 122 #define SAI_READ_CAPACITY_16  0x10
 123 #define SAI_GET_LBA_STATUS    0x12
 124 #define SAI_REPORT_REFERRALS  0x13
 125 /* values for VARIABLE_LENGTH_CMD service action codes
 126  * see spc4r17 Section D.3.5, table D.7 and D.8 */
 127 #define VLC_SA_RECEIVE_CREDENTIAL 0x1800
 128 /* values for maintenance in */
 129 #define MI_REPORT_IDENTIFYING_INFORMATION 0x05
 130 #define MI_REPORT_TARGET_PGS  0x0a
 131 #define MI_REPORT_ALIASES     0x0b
 132 #define MI_REPORT_SUPPORTED_OPERATION_CODES 0x0c
 133 #define MI_REPORT_SUPPORTED_TASK_MANAGEMENT_FUNCTIONS 0x0d
 134 #define MI_REPORT_PRIORITY    0x0e
 135 #define MI_REPORT_TIMESTAMP   0x0f
 136 #define MI_MANAGEMENT_PROTOCOL_IN 0x10
 137 /* value for MI_REPORT_TARGET_PGS ext header */
 138 #define MI_EXT_HDR_PARAM_FMT  0x20
 139 /* values for maintenance out */
 140 #define MO_SET_IDENTIFYING_INFORMATION 0x06
 141 #define MO_SET_TARGET_PGS     0x0a
 142 #define MO_CHANGE_ALIASES     0x0b
 143 #define MO_SET_PRIORITY       0x0e
 144 #define MO_SET_TIMESTAMP      0x0f
 145 #define MO_MANAGEMENT_PROTOCOL_OUT 0x10
 146 /* values for variable length command */
 147 #define XDREAD_32             0x03
 148 #define XDWRITE_32            0x04
 149 #define XPWRITE_32            0x06
 150 #define XDWRITEREAD_32        0x07
 151 #define READ_32               0x09
 152 #define VERIFY_32             0x0a
 153 #define WRITE_32              0x0b
 154 #define WRITE_SAME_32         0x0d
 155
 156 /* Values for T10/04-262r7 */
 157 #define ATA_16                0x85      /* 16-byte pass-thru */
 158 #define ATA_12                0xa1      /* 12-byte pass-thru */
 159
 160 /* Vendor specific CDBs start here */
 161 #define VENDOR_SPECIFIC_CDB 0xc0
 162
 163 /*
 164  *      SCSI command lengths
 165  */
 166
 167 #define SCSI_MAX_VARLEN_CDB_SIZE 260
 168
 169 /* defined in T10 SCSI Primary Commands-2 (SPC2) */
 170 struct scsi_varlen_cdb_hdr {
 171         __u8 opcode;        /* opcode always == VARIABLE_LENGTH_CMD */
 172         __u8 control;
 173         __u8 misc[5];
 174         __u8 additional_cdb_length;         /* total cdb length - 8 */
 175         __be16 service_action;
 176         /* service specific data follows */
 177 };
 178
 179 /*
 180  *  SCSI Architecture Model (SAM) Status codes. Taken from SAM-3 draft
 181  *  T10/1561-D Revision 4 Draft dated 7th November 2002.
 182  */
 183 #define SAM_STAT_GOOD            0x00
 184 #define SAM_STAT_CHECK_CONDITION 0x02
 185 #define SAM_STAT_CONDITION_MET   0x04
 186 #define SAM_STAT_BUSY            0x08
 187 #define SAM_STAT_INTERMEDIATE    0x10
 188 #define SAM_STAT_INTERMEDIATE_CONDITION_MET 0x14
 189 #define SAM_STAT_RESERVATION_CONFLICT 0x18
 190 #define SAM_STAT_COMMAND_TERMINATED 0x22        /* obsolete in SAM-3 */
 191 #define SAM_STAT_TASK_SET_FULL   0x28
 192 #define SAM_STAT_ACA_ACTIVE      0x30
 193 #define SAM_STAT_TASK_ABORTED    0x40
 194
 195 /*
 196  *  Status codes. These are deprecated as they are shifted 1 bit right
 197  *  from those found in the SCSI standards. This causes confusion for
 198  *  applications that are ported to several OSes. Prefer SAM Status codes
 199  *  above.
 200  */
 201
 202 #define GOOD                 0x00
 203 #define CHECK_CONDITION      0x01
 204 #define CONDITION_GOOD       0x02
 205 #define BUSY                 0x04
 206 #define INTERMEDIATE_GOOD    0x08
 207 #define INTERMEDIATE_C_GOOD  0x0a
 208 #define RESERVATION_CONFLICT 0x0c
 209 #define COMMAND_TERMINATED   0x11
 210 #define QUEUE_FULL           0x14
 211 #define ACA_ACTIVE           0x18
 212 #define TASK_ABORTED         0x20
 213
 214 #define STATUS_MASK          0xfe
 215
 216 /*
 217  *  SENSE KEYS
 218  */
 219
 220 #define NO_SENSE            0x00
 221 #define RECOVERED_ERROR     0x01
 222 #define NOT_READY           0x02
 223 #define MEDIUM_ERROR        0x03
 224 #define HARDWARE_ERROR      0x04
 225 #define ILLEGAL_REQUEST     0x05
 226 #define UNIT_ATTENTION      0x06
 227 #define DATA_PROTECT        0x07
 228 #define BLANK_CHECK         0x08
 229 #define COPY_ABORTED        0x0a
 230 #define ABORTED_COMMAND     0x0b
 231 #define VOLUME_OVERFLOW     0x0d
 232 #define MISCOMPARE          0x0e
 233
 234
 235 /*
 236  *  DEVICE TYPES
 237  *  Please keep them in 0x%02x format for $MODALIAS to work
 238  */
 239
 240 #define TYPE_DISK           0x00
 241 #define TYPE_TAPE           0x01
 242 #define TYPE_PRINTER        0x02
 243 #define TYPE_PROCESSOR      0x03    /* HP scanners use this */
 244 #define TYPE_WORM           0x04    /* Treated as ROM by our system */
 245 #define TYPE_ROM            0x05
 246 #define TYPE_SCANNER        0x06
 247 #define TYPE_MOD            0x07    /* Magneto-optical disk -
 248                                      * - treated as TYPE_DISK */
 249 #define TYPE_MEDIUM_CHANGER 0x08
 250 #define TYPE_COMM           0x09    /* Communications device */
 251 #define TYPE_RAID           0x0c
 252 #define TYPE_ENCLOSURE      0x0d    /* Enclosure Services Device */
 253 #define TYPE_RBC            0x0e
 254 #define TYPE_OSD            0x11
 255 #define TYPE_ZBC            0x14
 256 #define TYPE_WLUN           0x1e    /* well-known logical unit */
 257 #define TYPE_NO_LUN         0x7f
 258
 259 /* SCSI protocols; these are taken from SPC-3 section 7.5 */
 260 enum scsi_protocol {
 261         SCSI_PROTOCOL_FCP = 0,  /* Fibre Channel */
 262         SCSI_PROTOCOL_SPI = 1,  /* parallel SCSI */
 263         SCSI_PROTOCOL_SSA = 2,  /* Serial Storage Architecture - Obsolete */
 264         SCSI_PROTOCOL_SBP = 3,  /* firewire */
 265         SCSI_PROTOCOL_SRP = 4,  /* Infiniband RDMA */
 266         SCSI_PROTOCOL_ISCSI = 5,
 267         SCSI_PROTOCOL_SAS = 6,
 268         SCSI_PROTOCOL_ADT = 7,  /* Media Changers */
 269         SCSI_PROTOCOL_ATA = 8,
 270         SCSI_PROTOCOL_UNSPEC = 0xf, /* No specific protocol */
 271 };
 272
 273 /*
 274  * ScsiLun: 8 byte LUN.
 275  */
 276 struct scsi_lun {
 277         __u8 scsi_lun[8];
 278 };
 279
 280 /* SPC asymmetric access states */
 281 #define SCSI_ACCESS_STATE_OPTIMAL     0x00
 282 #define SCSI_ACCESS_STATE_ACTIVE      0x01
 283 #define SCSI_ACCESS_STATE_STANDBY     0x02
 284 #define SCSI_ACCESS_STATE_UNAVAILABLE 0x03
 285 #define SCSI_ACCESS_STATE_LBA         0x04
 286 #define SCSI_ACCESS_STATE_OFFLINE     0x0e
 287 #define SCSI_ACCESS_STATE_TRANSITIONING 0x0f
 288
 289 /* Values for REPORT TARGET GROUP STATES */
 290 #define SCSI_ACCESS_STATE_MASK        0x0f
 291 #define SCSI_ACCESS_STATE_PREFERRED   0x80
 292
 293 #endif /* _SCSI_PROTO_H_ */