root/include/scsi/scsi_proto.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * This header file contains public constants and structures used by
   4  * both the SCSI initiator and the SCSI target code.
   5  *
   6  * For documentation on the OPCODES, MESSAGES, and SENSE values,
   7  * please consult the SCSI standard.
   8  */
   9 
  10 #ifndef _SCSI_PROTO_H_
  11 #define _SCSI_PROTO_H_
  12 
  13 #include <linux/types.h>
  14 
  15 /*
  16  *      SCSI opcodes
  17  */
  18 
  19 #define TEST_UNIT_READY       0x00
  20 #define REZERO_UNIT           0x01
  21 #define REQUEST_SENSE         0x03
  22 #define FORMAT_UNIT           0x04
  23 #define READ_BLOCK_LIMITS     0x05
  24 #define REASSIGN_BLOCKS       0x07
  25 #define INITIALIZE_ELEMENT_STATUS 0x07
  26 #define READ_6                0x08
  27 #define WRITE_6               0x0a
  28 #define SEEK_6                0x0b
  29 #define READ_REVERSE          0x0f
  30 #define WRITE_FILEMARKS       0x10
  31 #define SPACE                 0x11
  32 #define INQUIRY               0x12
  33 #define RECOVER_BUFFERED_DATA 0x14
  34 #define MODE_SELECT           0x15
  35 #define RESERVE               0x16
  36 #define RELEASE               0x17
  37 #define COPY                  0x18
  38 #define ERASE                 0x19
  39 #define MODE_SENSE            0x1a
  40 #define START_STOP            0x1b
  41 #define RECEIVE_DIAGNOSTIC    0x1c
  42 #define SEND_DIAGNOSTIC       0x1d
  43 #define ALLOW_MEDIUM_REMOVAL  0x1e
  44 
  45 #define READ_FORMAT_CAPACITIES 0x23
  46 #define SET_WINDOW            0x24
  47 #define READ_CAPACITY         0x25
  48 #define READ_10               0x28
  49 #define WRITE_10              0x2a
  50 #define SEEK_10               0x2b
  51 #define POSITION_TO_ELEMENT   0x2b
  52 #define WRITE_VERIFY          0x2e
  53 #define VERIFY                0x2f
  54 #define SEARCH_HIGH           0x30
  55 #define SEARCH_EQUAL          0x31
  56 #define SEARCH_LOW            0x32
  57 #define SET_LIMITS            0x33
  58 #define PRE_FETCH             0x34
  59 #define READ_POSITION         0x34
  60 #define SYNCHRONIZE_CACHE     0x35
  61 #define LOCK_UNLOCK_CACHE     0x36
  62 #define READ_DEFECT_DATA      0x37
  63 #define MEDIUM_SCAN           0x38
  64 #define COMPARE               0x39
  65 #define COPY_VERIFY           0x3a
  66 #define WRITE_BUFFER          0x3b
  67 #define READ_BUFFER           0x3c
  68 #define UPDATE_BLOCK          0x3d
  69 #define READ_LONG             0x3e
  70 #define WRITE_LONG            0x3f
  71 #define CHANGE_DEFINITION     0x40
  72 #define WRITE_SAME            0x41
  73 #define UNMAP                 0x42
  74 #define READ_TOC              0x43
  75 #define READ_HEADER           0x44
  76 #define GET_EVENT_STATUS_NOTIFICATION 0x4a
  77 #define LOG_SELECT            0x4c
  78 #define LOG_SENSE             0x4d
  79 #define XDWRITEREAD_10        0x53
  80 #define MODE_SELECT_10        0x55
  81 #define RESERVE_10            0x56
  82 #define RELEASE_10            0x57
  83 #define MODE_SENSE_10         0x5a
  84 #define PERSISTENT_RESERVE_IN 0x5e
  85 #define PERSISTENT_RESERVE_OUT 0x5f
  86 #define VARIABLE_LENGTH_CMD   0x7f
  87 #define REPORT_LUNS           0xa0
  88 #define SECURITY_PROTOCOL_IN  0xa2
  89 #define MAINTENANCE_IN        0xa3
  90 #define MAINTENANCE_OUT       0xa4
  91 #define MOVE_MEDIUM           0xa5
  92 #define EXCHANGE_MEDIUM       0xa6
  93 #define READ_12               0xa8
  94 #define SERVICE_ACTION_OUT_12 0xa9
  95 #define WRITE_12              0xaa
  96 #define READ_MEDIA_SERIAL_NUMBER 0xab /* Obsolete with SPC-2 */
  97 #define SERVICE_ACTION_IN_12  0xab
  98 #define WRITE_VERIFY_12       0xae
  99 #define VERIFY_12             0xaf
 100 #define SEARCH_HIGH_12        0xb0
 101 #define SEARCH_EQUAL_12       0xb1
 102 #define SEARCH_LOW_12         0xb2
 103 #define SECURITY_PROTOCOL_OUT 0xb5
 104 #define READ_ELEMENT_STATUS   0xb8
 105 #define SEND_VOLUME_TAG       0xb6
 106 #define WRITE_LONG_2          0xea
 107 #define EXTENDED_COPY         0x83
 108 #define RECEIVE_COPY_RESULTS  0x84
 109 #define ACCESS_CONTROL_IN     0x86
 110 #define ACCESS_CONTROL_OUT    0x87
 111 #define READ_16               0x88
 112 #define COMPARE_AND_WRITE     0x89
 113 #define WRITE_16              0x8a
 114 #define READ_ATTRIBUTE        0x8c
 115 #define WRITE_ATTRIBUTE       0x8d
 116 #define WRITE_VERIFY_16       0x8e
 117 #define VERIFY_16             0x8f
 118 #define SYNCHRONIZE_CACHE_16  0x91
 119 #define WRITE_SAME_16         0x93
 120 #define ZBC_OUT               0x94
 121 #define ZBC_IN                0x95
 122 #define SERVICE_ACTION_BIDIRECTIONAL 0x9d
 123 #define SERVICE_ACTION_IN_16  0x9e
 124 #define SERVICE_ACTION_OUT_16 0x9f
 125 /* values for service action in */
 126 #define SAI_READ_CAPACITY_16  0x10
 127 #define SAI_GET_LBA_STATUS    0x12
 128 #define SAI_REPORT_REFERRALS  0x13
 129 /* values for maintenance in */
 130 #define MI_REPORT_IDENTIFYING_INFORMATION 0x05
 131 #define MI_REPORT_TARGET_PGS  0x0a
 132 #define MI_REPORT_ALIASES     0x0b
 133 #define MI_REPORT_SUPPORTED_OPERATION_CODES 0x0c
 134 #define MI_REPORT_SUPPORTED_TASK_MANAGEMENT_FUNCTIONS 0x0d
 135 #define MI_REPORT_PRIORITY    0x0e
 136 #define MI_REPORT_TIMESTAMP   0x0f
 137 #define MI_MANAGEMENT_PROTOCOL_IN 0x10
 138 /* value for MI_REPORT_TARGET_PGS ext header */
 139 #define MI_EXT_HDR_PARAM_FMT  0x20
 140 /* values for maintenance out */
 141 #define MO_SET_IDENTIFYING_INFORMATION 0x06
 142 #define MO_SET_TARGET_PGS     0x0a
 143 #define MO_CHANGE_ALIASES     0x0b
 144 #define MO_SET_PRIORITY       0x0e
 145 #define MO_SET_TIMESTAMP      0x0f
 146 #define MO_MANAGEMENT_PROTOCOL_OUT 0x10
 147 /* values for ZBC_IN */
 148 #define ZI_REPORT_ZONES       0x00
 149 /* values for ZBC_OUT */
 150 #define ZO_CLOSE_ZONE         0x01
 151 #define ZO_FINISH_ZONE        0x02
 152 #define ZO_OPEN_ZONE          0x03
 153 #define ZO_RESET_WRITE_POINTER 0x04
 154 /* values for variable length command */
 155 #define XDREAD_32             0x03
 156 #define XDWRITE_32            0x04
 157 #define XPWRITE_32            0x06
 158 #define XDWRITEREAD_32        0x07
 159 #define READ_32               0x09
 160 #define VERIFY_32             0x0a
 161 #define WRITE_32              0x0b
 162 #define WRITE_VERIFY_32       0x0c
 163 #define WRITE_SAME_32         0x0d
 164 #define ATA_32                0x1ff0
 165 
 166 /* Values for T10/04-262r7 */
 167 #define ATA_16                0x85      /* 16-byte pass-thru */
 168 #define ATA_12                0xa1      /* 12-byte pass-thru */
 169 
 170 /* Vendor specific CDBs start here */
 171 #define VENDOR_SPECIFIC_CDB 0xc0
 172 
 173 /*
 174  *      SCSI command lengths
 175  */
 176 
 177 #define SCSI_MAX_VARLEN_CDB_SIZE 260
 178 
 179 /* defined in T10 SCSI Primary Commands-2 (SPC2) */
 180 struct scsi_varlen_cdb_hdr {
 181         __u8 opcode;        /* opcode always == VARIABLE_LENGTH_CMD */
 182         __u8 control;
 183         __u8 misc[5];
 184         __u8 additional_cdb_length;         /* total cdb length - 8 */
 185         __be16 service_action;
 186         /* service specific data follows */
 187 };
 188 
 189 /*
 190  *  SCSI Architecture Model (SAM) Status codes. Taken from SAM-3 draft
 191  *  T10/1561-D Revision 4 Draft dated 7th November 2002.
 192  */
 193 #define SAM_STAT_GOOD            0x00
 194 #define SAM_STAT_CHECK_CONDITION 0x02
 195 #define SAM_STAT_CONDITION_MET   0x04
 196 #define SAM_STAT_BUSY            0x08
 197 #define SAM_STAT_INTERMEDIATE    0x10
 198 #define SAM_STAT_INTERMEDIATE_CONDITION_MET 0x14
 199 #define SAM_STAT_RESERVATION_CONFLICT 0x18
 200 #define SAM_STAT_COMMAND_TERMINATED 0x22        /* obsolete in SAM-3 */
 201 #define SAM_STAT_TASK_SET_FULL   0x28
 202 #define SAM_STAT_ACA_ACTIVE      0x30
 203 #define SAM_STAT_TASK_ABORTED    0x40
 204 
 205 /*
 206  *  Status codes. These are deprecated as they are shifted 1 bit right
 207  *  from those found in the SCSI standards. This causes confusion for
 208  *  applications that are ported to several OSes. Prefer SAM Status codes
 209  *  above.
 210  */
 211 
 212 #define GOOD                 0x00
 213 #define CHECK_CONDITION      0x01
 214 #define CONDITION_GOOD       0x02
 215 #define BUSY                 0x04
 216 #define INTERMEDIATE_GOOD    0x08
 217 #define INTERMEDIATE_C_GOOD  0x0a
 218 #define RESERVATION_CONFLICT 0x0c
 219 #define COMMAND_TERMINATED   0x11
 220 #define QUEUE_FULL           0x14
 221 #define ACA_ACTIVE           0x18
 222 #define TASK_ABORTED         0x20
 223 
 224 #define STATUS_MASK          0xfe
 225 
 226 /*
 227  *  SENSE KEYS
 228  */
 229 
 230 #define NO_SENSE            0x00
 231 #define RECOVERED_ERROR     0x01
 232 #define NOT_READY           0x02
 233 #define MEDIUM_ERROR        0x03
 234 #define HARDWARE_ERROR      0x04
 235 #define ILLEGAL_REQUEST     0x05
 236 #define UNIT_ATTENTION      0x06
 237 #define DATA_PROTECT        0x07
 238 #define BLANK_CHECK         0x08
 239 #define VENDOR_SPECIFIC     0x09
 240 #define COPY_ABORTED        0x0a
 241 #define ABORTED_COMMAND     0x0b
 242 #define VOLUME_OVERFLOW     0x0d
 243 #define MISCOMPARE          0x0e
 244 
 245 
 246 /*
 247  *  DEVICE TYPES
 248  *  Please keep them in 0x%02x format for $MODALIAS to work
 249  */
 250 
 251 #define TYPE_DISK           0x00
 252 #define TYPE_TAPE           0x01
 253 #define TYPE_PRINTER        0x02
 254 #define TYPE_PROCESSOR      0x03    /* HP scanners use this */
 255 #define TYPE_WORM           0x04    /* Treated as ROM by our system */
 256 #define TYPE_ROM            0x05
 257 #define TYPE_SCANNER        0x06
 258 #define TYPE_MOD            0x07    /* Magneto-optical disk -
 259                                      * - treated as TYPE_DISK */
 260 #define TYPE_MEDIUM_CHANGER 0x08
 261 #define TYPE_COMM           0x09    /* Communications device */
 262 #define TYPE_RAID           0x0c
 263 #define TYPE_ENCLOSURE      0x0d    /* Enclosure Services Device */
 264 #define TYPE_RBC            0x0e
 265 #define TYPE_OSD            0x11
 266 #define TYPE_ZBC            0x14
 267 #define TYPE_WLUN           0x1e    /* well-known logical unit */
 268 #define TYPE_NO_LUN         0x7f
 269 
 270 /* SCSI protocols; these are taken from SPC-3 section 7.5 */
 271 enum scsi_protocol {
 272         SCSI_PROTOCOL_FCP = 0,  /* Fibre Channel */
 273         SCSI_PROTOCOL_SPI = 1,  /* parallel SCSI */
 274         SCSI_PROTOCOL_SSA = 2,  /* Serial Storage Architecture - Obsolete */
 275         SCSI_PROTOCOL_SBP = 3,  /* firewire */
 276         SCSI_PROTOCOL_SRP = 4,  /* Infiniband RDMA */
 277         SCSI_PROTOCOL_ISCSI = 5,
 278         SCSI_PROTOCOL_SAS = 6,
 279         SCSI_PROTOCOL_ADT = 7,  /* Media Changers */
 280         SCSI_PROTOCOL_ATA = 8,
 281         SCSI_PROTOCOL_UNSPEC = 0xf, /* No specific protocol */
 282 };
 283 
 284 /*
 285  * ScsiLun: 8 byte LUN.
 286  */
 287 struct scsi_lun {
 288         __u8 scsi_lun[8];
 289 };
 290 
 291 /* SPC asymmetric access states */
 292 #define SCSI_ACCESS_STATE_OPTIMAL     0x00
 293 #define SCSI_ACCESS_STATE_ACTIVE      0x01
 294 #define SCSI_ACCESS_STATE_STANDBY     0x02
 295 #define SCSI_ACCESS_STATE_UNAVAILABLE 0x03
 296 #define SCSI_ACCESS_STATE_LBA         0x04
 297 #define SCSI_ACCESS_STATE_OFFLINE     0x0e
 298 #define SCSI_ACCESS_STATE_TRANSITIONING 0x0f
 299 
 300 /* Values for REPORT TARGET GROUP STATES */
 301 #define SCSI_ACCESS_STATE_MASK        0x0f
 302 #define SCSI_ACCESS_STATE_PREFERRED   0x80
 303 
 304 /* Reporting options for REPORT ZONES */
 305 enum zbc_zone_reporting_options {
 306         ZBC_ZONE_REPORTING_OPTION_ALL           = 0x00,
 307         ZBC_ZONE_REPORTING_OPTION_EMPTY         = 0x01,
 308         ZBC_ZONE_REPORTING_OPTION_IMPLICIT_OPEN = 0x02,
 309         ZBC_ZONE_REPORTING_OPTION_EXPLICIT_OPEN = 0x03,
 310         ZBC_ZONE_REPORTING_OPTION_CLOSED        = 0x04,
 311         ZBC_ZONE_REPORTING_OPTION_FULL          = 0x05,
 312         ZBC_ZONE_REPORTING_OPTION_READONLY      = 0x06,
 313         ZBC_ZONE_REPORTING_OPTION_OFFLINE       = 0x07,
 314         /* 0x08 to 0x0f are reserved */
 315         ZBC_ZONE_REPORTING_OPTION_NEED_RESET_WP = 0x10,
 316         ZBC_ZONE_REPORTING_OPTION_NON_SEQWRITE  = 0x11,
 317         /* 0x12 to 0x3e are reserved */
 318         ZBC_ZONE_REPORTING_OPTION_NON_WP        = 0x3f,
 319 };
 320 
 321 #define ZBC_REPORT_ZONE_PARTIAL 0x80
 322 
 323 /* Zone types of REPORT ZONES zone descriptors */
 324 enum zbc_zone_type {
 325         ZBC_ZONE_TYPE_CONV              = 0x1,
 326         ZBC_ZONE_TYPE_SEQWRITE_REQ      = 0x2,
 327         ZBC_ZONE_TYPE_SEQWRITE_PREF     = 0x3,
 328         /* 0x4 to 0xf are reserved */
 329 };
 330 
 331 /* Zone conditions of REPORT ZONES zone descriptors */
 332 enum zbc_zone_cond {
 333         ZBC_ZONE_COND_NO_WP             = 0x0,
 334         ZBC_ZONE_COND_EMPTY             = 0x1,
 335         ZBC_ZONE_COND_IMP_OPEN          = 0x2,
 336         ZBC_ZONE_COND_EXP_OPEN          = 0x3,
 337         ZBC_ZONE_COND_CLOSED            = 0x4,
 338         /* 0x5 to 0xc are reserved */
 339         ZBC_ZONE_COND_READONLY          = 0xd,
 340         ZBC_ZONE_COND_FULL              = 0xe,
 341         ZBC_ZONE_COND_OFFLINE           = 0xf,
 342 };
 343 
 344 #endif /* _SCSI_PROTO_H_ */