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 enum sam_status { 194 SAM_STAT_GOOD = 0x00, 195 SAM_STAT_CHECK_CONDITION = 0x02, 196 SAM_STAT_CONDITION_MET = 0x04, 197 SAM_STAT_BUSY = 0x08, 198 SAM_STAT_INTERMEDIATE = 0x10, 199 SAM_STAT_INTERMEDIATE_CONDITION_MET = 0x14, 200 SAM_STAT_RESERVATION_CONFLICT = 0x18, 201 SAM_STAT_COMMAND_TERMINATED = 0x22, /* obsolete in SAM-3 */ 202 SAM_STAT_TASK_SET_FULL = 0x28, 203 SAM_STAT_ACA_ACTIVE = 0x30, 204 SAM_STAT_TASK_ABORTED = 0x40, 205 }; 206 207 #define STATUS_MASK 0xfe 208 /* 209 * SENSE KEYS 210 */ 211 212 #define NO_SENSE 0x00 213 #define RECOVERED_ERROR 0x01 214 #define NOT_READY 0x02 215 #define MEDIUM_ERROR 0x03 216 #define HARDWARE_ERROR 0x04 217 #define ILLEGAL_REQUEST 0x05 218 #define UNIT_ATTENTION 0x06 219 #define DATA_PROTECT 0x07 220 #define BLANK_CHECK 0x08 221 #define VENDOR_SPECIFIC 0x09 222 #define COPY_ABORTED 0x0a 223 #define ABORTED_COMMAND 0x0b 224 #define VOLUME_OVERFLOW 0x0d 225 #define MISCOMPARE 0x0e 226 227 228 /* 229 * DEVICE TYPES 230 * Please keep them in 0x%02x format for $MODALIAS to work 231 */ 232 233 #define TYPE_DISK 0x00 234 #define TYPE_TAPE 0x01 235 #define TYPE_PRINTER 0x02 236 #define TYPE_PROCESSOR 0x03 /* HP scanners use this */ 237 #define TYPE_WORM 0x04 /* Treated as ROM by our system */ 238 #define TYPE_ROM 0x05 239 #define TYPE_SCANNER 0x06 240 #define TYPE_MOD 0x07 /* Magneto-optical disk - 241 * - treated as TYPE_DISK */ 242 #define TYPE_MEDIUM_CHANGER 0x08 243 #define TYPE_COMM 0x09 /* Communications device */ 244 #define TYPE_RAID 0x0c 245 #define TYPE_ENCLOSURE 0x0d /* Enclosure Services Device */ 246 #define TYPE_RBC 0x0e 247 #define TYPE_OSD 0x11 248 #define TYPE_ZBC 0x14 249 #define TYPE_WLUN 0x1e /* well-known logical unit */ 250 #define TYPE_NO_LUN 0x7f 251 252 /* SCSI protocols; these are taken from SPC-3 section 7.5 */ 253 enum scsi_protocol { 254 SCSI_PROTOCOL_FCP = 0, /* Fibre Channel */ 255 SCSI_PROTOCOL_SPI = 1, /* parallel SCSI */ 256 SCSI_PROTOCOL_SSA = 2, /* Serial Storage Architecture - Obsolete */ 257 SCSI_PROTOCOL_SBP = 3, /* firewire */ 258 SCSI_PROTOCOL_SRP = 4, /* Infiniband RDMA */ 259 SCSI_PROTOCOL_ISCSI = 5, 260 SCSI_PROTOCOL_SAS = 6, 261 SCSI_PROTOCOL_ADT = 7, /* Media Changers */ 262 SCSI_PROTOCOL_ATA = 8, 263 SCSI_PROTOCOL_UNSPEC = 0xf, /* No specific protocol */ 264 }; 265 266 /* 267 * ScsiLun: 8 byte LUN. 268 */ 269 struct scsi_lun { 270 __u8 scsi_lun[8]; 271 }; 272 273 /* SPC asymmetric access states */ 274 #define SCSI_ACCESS_STATE_OPTIMAL 0x00 275 #define SCSI_ACCESS_STATE_ACTIVE 0x01 276 #define SCSI_ACCESS_STATE_STANDBY 0x02 277 #define SCSI_ACCESS_STATE_UNAVAILABLE 0x03 278 #define SCSI_ACCESS_STATE_LBA 0x04 279 #define SCSI_ACCESS_STATE_OFFLINE 0x0e 280 #define SCSI_ACCESS_STATE_TRANSITIONING 0x0f 281 282 /* Values for REPORT TARGET GROUP STATES */ 283 #define SCSI_ACCESS_STATE_MASK 0x0f 284 #define SCSI_ACCESS_STATE_PREFERRED 0x80 285 286 /* Reporting options for REPORT ZONES */ 287 enum zbc_zone_reporting_options { 288 ZBC_ZONE_REPORTING_OPTION_ALL = 0x00, 289 ZBC_ZONE_REPORTING_OPTION_EMPTY = 0x01, 290 ZBC_ZONE_REPORTING_OPTION_IMPLICIT_OPEN = 0x02, 291 ZBC_ZONE_REPORTING_OPTION_EXPLICIT_OPEN = 0x03, 292 ZBC_ZONE_REPORTING_OPTION_CLOSED = 0x04, 293 ZBC_ZONE_REPORTING_OPTION_FULL = 0x05, 294 ZBC_ZONE_REPORTING_OPTION_READONLY = 0x06, 295 ZBC_ZONE_REPORTING_OPTION_OFFLINE = 0x07, 296 /* 0x08 to 0x0f are reserved */ 297 ZBC_ZONE_REPORTING_OPTION_NEED_RESET_WP = 0x10, 298 ZBC_ZONE_REPORTING_OPTION_NON_SEQWRITE = 0x11, 299 /* 0x12 to 0x3e are reserved */ 300 ZBC_ZONE_REPORTING_OPTION_NON_WP = 0x3f, 301 }; 302 303 #define ZBC_REPORT_ZONE_PARTIAL 0x80 304 305 /* Zone types of REPORT ZONES zone descriptors */ 306 enum zbc_zone_type { 307 ZBC_ZONE_TYPE_CONV = 0x1, 308 ZBC_ZONE_TYPE_SEQWRITE_REQ = 0x2, 309 ZBC_ZONE_TYPE_SEQWRITE_PREF = 0x3, 310 /* 0x4 to 0xf are reserved */ 311 }; 312 313 /* Zone conditions of REPORT ZONES zone descriptors */ 314 enum zbc_zone_cond { 315 ZBC_ZONE_COND_NO_WP = 0x0, 316 ZBC_ZONE_COND_EMPTY = 0x1, 317 ZBC_ZONE_COND_IMP_OPEN = 0x2, 318 ZBC_ZONE_COND_EXP_OPEN = 0x3, 319 ZBC_ZONE_COND_CLOSED = 0x4, 320 /* 0x5 to 0xc are reserved */ 321 ZBC_ZONE_COND_READONLY = 0xd, 322 ZBC_ZONE_COND_FULL = 0xe, 323 ZBC_ZONE_COND_OFFLINE = 0xf, 324 }; 325 326 /* Version descriptor values for INQUIRY */ 327 enum scsi_version_descriptor { 328 SCSI_VERSION_DESCRIPTOR_FCP4 = 0x0a40, 329 SCSI_VERSION_DESCRIPTOR_ISCSI = 0x0960, 330 SCSI_VERSION_DESCRIPTOR_SAM5 = 0x00a0, 331 SCSI_VERSION_DESCRIPTOR_SAS3 = 0x0c60, 332 SCSI_VERSION_DESCRIPTOR_SBC3 = 0x04c0, 333 SCSI_VERSION_DESCRIPTOR_SBP3 = 0x0980, 334 SCSI_VERSION_DESCRIPTOR_SPC4 = 0x0460, 335 SCSI_VERSION_DESCRIPTOR_SRP = 0x0940 336 }; 337 338 #endif /* _SCSI_PROTO_H_ */ 339