1 /* SPDX-License-Identifier: GPL-2.0 */
3 * This header file contains public constants and structures used by
4 * both the SCSI initiator and the SCSI target code.
6 * For documentation on the OPCODES, MESSAGES, and SENSE values,
7 * please consult the SCSI standard.
10 #ifndef _SCSI_PROTO_H_
11 #define _SCSI_PROTO_H_
13 #include <linux/types.h>
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
29 #define READ_REVERSE 0x0f
30 #define WRITE_FILEMARKS 0x10
33 #define RECOVER_BUFFERED_DATA 0x14
34 #define MODE_SELECT 0x15
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
45 #define READ_FORMAT_CAPACITIES 0x23
46 #define SET_WINDOW 0x24
47 #define READ_CAPACITY 0x25
51 #define POSITION_TO_ELEMENT 0x2b
52 #define WRITE_VERIFY 0x2e
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
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
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
94 #define SERVICE_ACTION_OUT_12 0xa9
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
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
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
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
166 /* Values for T10/04-262r7 */
167 #define ATA_16 0x85 /* 16-byte pass-thru */
168 #define ATA_12 0xa1 /* 12-byte pass-thru */
170 /* Vendor specific CDBs start here */
171 #define VENDOR_SPECIFIC_CDB 0xc0
174 * SCSI command lengths
177 #define SCSI_MAX_VARLEN_CDB_SIZE 260
179 /* defined in T10 SCSI Primary Commands-2 (SPC2) */
180 struct scsi_varlen_cdb_hdr {
181 __u8 opcode; /* opcode always == VARIABLE_LENGTH_CMD */
184 __u8 additional_cdb_length; /* total cdb length - 8 */
185 __be16 service_action;
186 /* service specific data follows */
190 * SCSI Architecture Model (SAM) Status codes. Taken from SAM-3 draft
191 * T10/1561-D Revision 4 Draft dated 7th November 2002.
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,
207 #define STATUS_MASK 0xfe
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 #define COMPLETED 0x0f
230 * Please keep them in 0x%02x format for $MODALIAS to work
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
252 /* SCSI protocols; these are taken from SPC-3 section 7.5 */
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 */
267 * ScsiLun: 8 byte LUN.
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
282 /* Values for REPORT TARGET GROUP STATES */
283 #define SCSI_ACCESS_STATE_MASK 0x0f
284 #define SCSI_ACCESS_STATE_PREFERRED 0x80
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,
303 #define ZBC_REPORT_ZONE_PARTIAL 0x80
305 /* Zone types of REPORT ZONES zone descriptors */
307 ZBC_ZONE_TYPE_CONV = 0x1,
308 ZBC_ZONE_TYPE_SEQWRITE_REQ = 0x2,
309 ZBC_ZONE_TYPE_SEQWRITE_PREF = 0x3,
310 ZBC_ZONE_TYPE_SEQ_OR_BEFORE_REQ = 0x4,
311 ZBC_ZONE_TYPE_GAP = 0x5,
312 /* 0x6 to 0xf are reserved */
315 /* Zone conditions of REPORT ZONES zone descriptors */
317 ZBC_ZONE_COND_NO_WP = 0x0,
318 ZBC_ZONE_COND_EMPTY = 0x1,
319 ZBC_ZONE_COND_IMP_OPEN = 0x2,
320 ZBC_ZONE_COND_EXP_OPEN = 0x3,
321 ZBC_ZONE_COND_CLOSED = 0x4,
322 /* 0x5 to 0xc are reserved */
323 ZBC_ZONE_COND_READONLY = 0xd,
324 ZBC_ZONE_COND_FULL = 0xe,
325 ZBC_ZONE_COND_OFFLINE = 0xf,
328 enum zbc_zone_alignment_method {
329 ZBC_CONSTANT_ZONE_LENGTH = 0x1,
330 ZBC_CONSTANT_ZONE_START_OFFSET = 0x8,
333 /* Version descriptor values for INQUIRY */
334 enum scsi_version_descriptor {
335 SCSI_VERSION_DESCRIPTOR_FCP4 = 0x0a40,
336 SCSI_VERSION_DESCRIPTOR_ISCSI = 0x0960,
337 SCSI_VERSION_DESCRIPTOR_SAM5 = 0x00a0,
338 SCSI_VERSION_DESCRIPTOR_SAS3 = 0x0c60,
339 SCSI_VERSION_DESCRIPTOR_SBC3 = 0x04c0,
340 SCSI_VERSION_DESCRIPTOR_SBP3 = 0x0980,
341 SCSI_VERSION_DESCRIPTOR_SPC4 = 0x0460,
342 SCSI_VERSION_DESCRIPTOR_SRP = 0x0940
345 enum scsi_support_opcode {
346 SCSI_SUPPORT_NO_INFO = 0,
347 SCSI_SUPPORT_NOT_SUPPORTED = 1,
348 SCSI_SUPPORT_FULL = 3,
349 SCSI_SUPPORT_VENDOR = 5,
352 #define SCSI_CONTROL_MASK 0
353 #define SCSI_GROUP_NUMBER_MASK 0
355 #endif /* _SCSI_PROTO_H_ */