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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 WRITE_VERIFY_16 0x8e
116#define VERIFY_16 0x8f
117#define SYNCHRONIZE_CACHE_16 0x91
118#define WRITE_SAME_16 0x93
119#define ZBC_OUT 0x94
120#define ZBC_IN 0x95
121#define SERVICE_ACTION_BIDIRECTIONAL 0x9d
122#define SERVICE_ACTION_IN_16 0x9e
123#define SERVICE_ACTION_OUT_16 0x9f
124/* values for service action in */
125#define SAI_READ_CAPACITY_16 0x10
126#define SAI_GET_LBA_STATUS 0x12
127#define SAI_REPORT_REFERRALS 0x13
128/* values for VARIABLE_LENGTH_CMD service action codes
129 * see spc4r17 Section D.3.5, table D.7 and D.8 */
130#define VLC_SA_RECEIVE_CREDENTIAL 0x1800
131/* values for maintenance in */
132#define MI_REPORT_IDENTIFYING_INFORMATION 0x05
133#define MI_REPORT_TARGET_PGS 0x0a
134#define MI_REPORT_ALIASES 0x0b
135#define MI_REPORT_SUPPORTED_OPERATION_CODES 0x0c
136#define MI_REPORT_SUPPORTED_TASK_MANAGEMENT_FUNCTIONS 0x0d
137#define MI_REPORT_PRIORITY 0x0e
138#define MI_REPORT_TIMESTAMP 0x0f
139#define MI_MANAGEMENT_PROTOCOL_IN 0x10
140/* value for MI_REPORT_TARGET_PGS ext header */
141#define MI_EXT_HDR_PARAM_FMT 0x20
142/* values for maintenance out */
143#define MO_SET_IDENTIFYING_INFORMATION 0x06
144#define MO_SET_TARGET_PGS 0x0a
145#define MO_CHANGE_ALIASES 0x0b
146#define MO_SET_PRIORITY 0x0e
147#define MO_SET_TIMESTAMP 0x0f
148#define MO_MANAGEMENT_PROTOCOL_OUT 0x10
149/* values for ZBC_IN */
150#define ZI_REPORT_ZONES 0x00
151/* values for ZBC_OUT */
152#define ZO_CLOSE_ZONE 0x01
153#define ZO_FINISH_ZONE 0x02
154#define ZO_OPEN_ZONE 0x03
155#define ZO_RESET_WRITE_POINTER 0x04
156/* values for variable length command */
157#define XDREAD_32 0x03
158#define XDWRITE_32 0x04
159#define XPWRITE_32 0x06
160#define XDWRITEREAD_32 0x07
161#define READ_32 0x09
162#define VERIFY_32 0x0a
163#define WRITE_32 0x0b
164#define WRITE_SAME_32 0x0d
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) */
180struct 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 COPY_ABORTED 0x0a
240#define ABORTED_COMMAND 0x0b
241#define VOLUME_OVERFLOW 0x0d
242#define MISCOMPARE 0x0e
243
244
245/*
246 * DEVICE TYPES
247 * Please keep them in 0x%02x format for $MODALIAS to work
248 */
249
250#define TYPE_DISK 0x00
251#define TYPE_TAPE 0x01
252#define TYPE_PRINTER 0x02
253#define TYPE_PROCESSOR 0x03 /* HP scanners use this */
254#define TYPE_WORM 0x04 /* Treated as ROM by our system */
255#define TYPE_ROM 0x05
256#define TYPE_SCANNER 0x06
257#define TYPE_MOD 0x07 /* Magneto-optical disk -
258 * - treated as TYPE_DISK */
259#define TYPE_MEDIUM_CHANGER 0x08
260#define TYPE_COMM 0x09 /* Communications device */
261#define TYPE_RAID 0x0c
262#define TYPE_ENCLOSURE 0x0d /* Enclosure Services Device */
263#define TYPE_RBC 0x0e
264#define TYPE_OSD 0x11
265#define TYPE_ZBC 0x14
266#define TYPE_WLUN 0x1e /* well-known logical unit */
267#define TYPE_NO_LUN 0x7f
268
269/* SCSI protocols; these are taken from SPC-3 section 7.5 */
270enum scsi_protocol {
271 SCSI_PROTOCOL_FCP = 0, /* Fibre Channel */
272 SCSI_PROTOCOL_SPI = 1, /* parallel SCSI */
273 SCSI_PROTOCOL_SSA = 2, /* Serial Storage Architecture - Obsolete */
274 SCSI_PROTOCOL_SBP = 3, /* firewire */
275 SCSI_PROTOCOL_SRP = 4, /* Infiniband RDMA */
276 SCSI_PROTOCOL_ISCSI = 5,
277 SCSI_PROTOCOL_SAS = 6,
278 SCSI_PROTOCOL_ADT = 7, /* Media Changers */
279 SCSI_PROTOCOL_ATA = 8,
280 SCSI_PROTOCOL_UNSPEC = 0xf, /* No specific protocol */
281};
282
283/*
284 * ScsiLun: 8 byte LUN.
285 */
286struct scsi_lun {
287 __u8 scsi_lun[8];
288};
289
290/* SPC asymmetric access states */
291#define SCSI_ACCESS_STATE_OPTIMAL 0x00
292#define SCSI_ACCESS_STATE_ACTIVE 0x01
293#define SCSI_ACCESS_STATE_STANDBY 0x02
294#define SCSI_ACCESS_STATE_UNAVAILABLE 0x03
295#define SCSI_ACCESS_STATE_LBA 0x04
296#define SCSI_ACCESS_STATE_OFFLINE 0x0e
297#define SCSI_ACCESS_STATE_TRANSITIONING 0x0f
298
299/* Values for REPORT TARGET GROUP STATES */
300#define SCSI_ACCESS_STATE_MASK 0x0f
301#define SCSI_ACCESS_STATE_PREFERRED 0x80
302
303/* Reporting options for REPORT ZONES */
304enum zbc_zone_reporting_options {
305 ZBC_ZONE_REPORTING_OPTION_ALL = 0,
306 ZBC_ZONE_REPORTING_OPTION_EMPTY,
307 ZBC_ZONE_REPORTING_OPTION_IMPLICIT_OPEN,
308 ZBC_ZONE_REPORTING_OPTION_EXPLICIT_OPEN,
309 ZBC_ZONE_REPORTING_OPTION_CLOSED,
310 ZBC_ZONE_REPORTING_OPTION_FULL,
311 ZBC_ZONE_REPORTING_OPTION_READONLY,
312 ZBC_ZONE_REPORTING_OPTION_OFFLINE,
313 ZBC_ZONE_REPORTING_OPTION_NEED_RESET_WP = 0x10,
314 ZBC_ZONE_REPORTING_OPTION_NON_SEQWRITE,
315 ZBC_ZONE_REPORTING_OPTION_NON_WP = 0x3f,
316};
317
318#define ZBC_REPORT_ZONE_PARTIAL 0x80
319
320#endif /* _SCSI_PROTO_H_ */