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8#ifndef _SCSI_SCSI_H
9#define _SCSI_SCSI_H
10
11#include <linux/types.h>
12#include <linux/scatterlist.h>
13#include <linux/kernel.h>
14
15struct scsi_cmnd;
16
17enum scsi_timeouts {
18 SCSI_DEFAULT_EH_TIMEOUT = 10 * HZ,
19};
20
21
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26
27
28#define SCSI_MAX_SG_SEGMENTS 128
29
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32
33
34#ifdef CONFIG_ARCH_HAS_SG_CHAIN
35#define SCSI_MAX_SG_CHAIN_SEGMENTS 2048
36#else
37#define SCSI_MAX_SG_CHAIN_SEGMENTS SCSI_MAX_SG_SEGMENTS
38#endif
39
40
41
42
43
44#define SCSI_MAX_PROT_SG_SEGMENTS 0xFFFF
45
46
47
48
49
50#define SCAN_WILD_CARD ~0
51
52
53
54
55
56#define TEST_UNIT_READY 0x00
57#define REZERO_UNIT 0x01
58#define REQUEST_SENSE 0x03
59#define FORMAT_UNIT 0x04
60#define READ_BLOCK_LIMITS 0x05
61#define REASSIGN_BLOCKS 0x07
62#define INITIALIZE_ELEMENT_STATUS 0x07
63#define READ_6 0x08
64#define WRITE_6 0x0a
65#define SEEK_6 0x0b
66#define READ_REVERSE 0x0f
67#define WRITE_FILEMARKS 0x10
68#define SPACE 0x11
69#define INQUIRY 0x12
70#define RECOVER_BUFFERED_DATA 0x14
71#define MODE_SELECT 0x15
72#define RESERVE 0x16
73#define RELEASE 0x17
74#define COPY 0x18
75#define ERASE 0x19
76#define MODE_SENSE 0x1a
77#define START_STOP 0x1b
78#define RECEIVE_DIAGNOSTIC 0x1c
79#define SEND_DIAGNOSTIC 0x1d
80#define ALLOW_MEDIUM_REMOVAL 0x1e
81
82#define READ_FORMAT_CAPACITIES 0x23
83#define SET_WINDOW 0x24
84#define READ_CAPACITY 0x25
85#define READ_10 0x28
86#define WRITE_10 0x2a
87#define SEEK_10 0x2b
88#define POSITION_TO_ELEMENT 0x2b
89#define WRITE_VERIFY 0x2e
90#define VERIFY 0x2f
91#define SEARCH_HIGH 0x30
92#define SEARCH_EQUAL 0x31
93#define SEARCH_LOW 0x32
94#define SET_LIMITS 0x33
95#define PRE_FETCH 0x34
96#define READ_POSITION 0x34
97#define SYNCHRONIZE_CACHE 0x35
98#define LOCK_UNLOCK_CACHE 0x36
99#define READ_DEFECT_DATA 0x37
100#define MEDIUM_SCAN 0x38
101#define COMPARE 0x39
102#define COPY_VERIFY 0x3a
103#define WRITE_BUFFER 0x3b
104#define READ_BUFFER 0x3c
105#define UPDATE_BLOCK 0x3d
106#define READ_LONG 0x3e
107#define WRITE_LONG 0x3f
108#define CHANGE_DEFINITION 0x40
109#define WRITE_SAME 0x41
110#define UNMAP 0x42
111#define READ_TOC 0x43
112#define READ_HEADER 0x44
113#define GET_EVENT_STATUS_NOTIFICATION 0x4a
114#define LOG_SELECT 0x4c
115#define LOG_SENSE 0x4d
116#define XDWRITEREAD_10 0x53
117#define MODE_SELECT_10 0x55
118#define RESERVE_10 0x56
119#define RELEASE_10 0x57
120#define MODE_SENSE_10 0x5a
121#define PERSISTENT_RESERVE_IN 0x5e
122#define PERSISTENT_RESERVE_OUT 0x5f
123#define VARIABLE_LENGTH_CMD 0x7f
124#define REPORT_LUNS 0xa0
125#define SECURITY_PROTOCOL_IN 0xa2
126#define MAINTENANCE_IN 0xa3
127#define MAINTENANCE_OUT 0xa4
128#define MOVE_MEDIUM 0xa5
129#define EXCHANGE_MEDIUM 0xa6
130#define READ_12 0xa8
131#define WRITE_12 0xaa
132#define READ_MEDIA_SERIAL_NUMBER 0xab
133#define WRITE_VERIFY_12 0xae
134#define VERIFY_12 0xaf
135#define SEARCH_HIGH_12 0xb0
136#define SEARCH_EQUAL_12 0xb1
137#define SEARCH_LOW_12 0xb2
138#define SECURITY_PROTOCOL_OUT 0xb5
139#define READ_ELEMENT_STATUS 0xb8
140#define SEND_VOLUME_TAG 0xb6
141#define WRITE_LONG_2 0xea
142#define EXTENDED_COPY 0x83
143#define RECEIVE_COPY_RESULTS 0x84
144#define ACCESS_CONTROL_IN 0x86
145#define ACCESS_CONTROL_OUT 0x87
146#define READ_16 0x88
147#define COMPARE_AND_WRITE 0x89
148#define WRITE_16 0x8a
149#define READ_ATTRIBUTE 0x8c
150#define WRITE_ATTRIBUTE 0x8d
151#define VERIFY_16 0x8f
152#define SYNCHRONIZE_CACHE_16 0x91
153#define WRITE_SAME_16 0x93
154#define SERVICE_ACTION_IN 0x9e
155
156#define SAI_READ_CAPACITY_16 0x10
157#define SAI_GET_LBA_STATUS 0x12
158#define SAI_REPORT_REFERRALS 0x13
159
160
161#define VLC_SA_RECEIVE_CREDENTIAL 0x1800
162
163#define MI_REPORT_IDENTIFYING_INFORMATION 0x05
164#define MI_REPORT_TARGET_PGS 0x0a
165#define MI_REPORT_ALIASES 0x0b
166#define MI_REPORT_SUPPORTED_OPERATION_CODES 0x0c
167#define MI_REPORT_SUPPORTED_TASK_MANAGEMENT_FUNCTIONS 0x0d
168#define MI_REPORT_PRIORITY 0x0e
169#define MI_REPORT_TIMESTAMP 0x0f
170#define MI_MANAGEMENT_PROTOCOL_IN 0x10
171
172#define MI_EXT_HDR_PARAM_FMT 0x20
173
174#define MO_SET_IDENTIFYING_INFORMATION 0x06
175#define MO_SET_TARGET_PGS 0x0a
176#define MO_CHANGE_ALIASES 0x0b
177#define MO_SET_PRIORITY 0x0e
178#define MO_SET_TIMESTAMP 0x0f
179#define MO_MANAGEMENT_PROTOCOL_OUT 0x10
180
181#define XDREAD_32 0x03
182#define XDWRITE_32 0x04
183#define XPWRITE_32 0x06
184#define XDWRITEREAD_32 0x07
185#define READ_32 0x09
186#define VERIFY_32 0x0a
187#define WRITE_32 0x0b
188#define WRITE_SAME_32 0x0d
189
190
191#define ATA_16 0x85
192#define ATA_12 0xa1
193
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195
196
197
198#define SCSI_MAX_VARLEN_CDB_SIZE 260
199
200
201struct scsi_varlen_cdb_hdr {
202 __u8 opcode;
203 __u8 control;
204 __u8 misc[5];
205 __u8 additional_cdb_length;
206 __be16 service_action;
207
208};
209
210static inline unsigned
211scsi_varlen_cdb_length(const void *hdr)
212{
213 return ((struct scsi_varlen_cdb_hdr *)hdr)->additional_cdb_length + 8;
214}
215
216extern const unsigned char scsi_command_size_tbl[8];
217#define COMMAND_SIZE(opcode) scsi_command_size_tbl[((opcode) >> 5) & 7]
218
219static inline unsigned
220scsi_command_size(const unsigned char *cmnd)
221{
222 return (cmnd[0] == VARIABLE_LENGTH_CMD) ?
223 scsi_varlen_cdb_length(cmnd) : COMMAND_SIZE(cmnd[0]);
224}
225
226#ifdef CONFIG_ACPI
227struct acpi_bus_type;
228
229extern int
230scsi_register_acpi_bus_type(struct acpi_bus_type *bus);
231
232extern void
233scsi_unregister_acpi_bus_type(struct acpi_bus_type *bus);
234#endif
235
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237
238
239
240#define SAM_STAT_GOOD 0x00
241#define SAM_STAT_CHECK_CONDITION 0x02
242#define SAM_STAT_CONDITION_MET 0x04
243#define SAM_STAT_BUSY 0x08
244#define SAM_STAT_INTERMEDIATE 0x10
245#define SAM_STAT_INTERMEDIATE_CONDITION_MET 0x14
246#define SAM_STAT_RESERVATION_CONFLICT 0x18
247#define SAM_STAT_COMMAND_TERMINATED 0x22
248#define SAM_STAT_TASK_SET_FULL 0x28
249#define SAM_STAT_ACA_ACTIVE 0x30
250#define SAM_STAT_TASK_ABORTED 0x40
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259
260static inline int scsi_status_is_good(int status)
261{
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266
267 status &= 0xfe;
268 return ((status == SAM_STAT_GOOD) ||
269 (status == SAM_STAT_INTERMEDIATE) ||
270 (status == SAM_STAT_INTERMEDIATE_CONDITION_MET) ||
271
272 (status == SAM_STAT_COMMAND_TERMINATED));
273}
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281
282#define GOOD 0x00
283#define CHECK_CONDITION 0x01
284#define CONDITION_GOOD 0x02
285#define BUSY 0x04
286#define INTERMEDIATE_GOOD 0x08
287#define INTERMEDIATE_C_GOOD 0x0a
288#define RESERVATION_CONFLICT 0x0c
289#define COMMAND_TERMINATED 0x11
290#define QUEUE_FULL 0x14
291#define ACA_ACTIVE 0x18
292#define TASK_ABORTED 0x20
293
294#define STATUS_MASK 0xfe
295
296
297
298
299
300#define NO_SENSE 0x00
301#define RECOVERED_ERROR 0x01
302#define NOT_READY 0x02
303#define MEDIUM_ERROR 0x03
304#define HARDWARE_ERROR 0x04
305#define ILLEGAL_REQUEST 0x05
306#define UNIT_ATTENTION 0x06
307#define DATA_PROTECT 0x07
308#define BLANK_CHECK 0x08
309#define COPY_ABORTED 0x0a
310#define ABORTED_COMMAND 0x0b
311#define VOLUME_OVERFLOW 0x0d
312#define MISCOMPARE 0x0e
313
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319
320#define TYPE_DISK 0x00
321#define TYPE_TAPE 0x01
322#define TYPE_PRINTER 0x02
323#define TYPE_PROCESSOR 0x03
324#define TYPE_WORM 0x04
325#define TYPE_ROM 0x05
326#define TYPE_SCANNER 0x06
327#define TYPE_MOD 0x07
328
329#define TYPE_MEDIUM_CHANGER 0x08
330#define TYPE_COMM 0x09
331#define TYPE_RAID 0x0c
332#define TYPE_ENCLOSURE 0x0d
333#define TYPE_RBC 0x0e
334#define TYPE_OSD 0x11
335#define TYPE_ZBC 0x14
336#define TYPE_WLUN 0x1e
337#define TYPE_NO_LUN 0x7f
338
339
340enum scsi_protocol {
341 SCSI_PROTOCOL_FCP = 0,
342 SCSI_PROTOCOL_SPI = 1,
343 SCSI_PROTOCOL_SSA = 2,
344 SCSI_PROTOCOL_SBP = 3,
345 SCSI_PROTOCOL_SRP = 4,
346 SCSI_PROTOCOL_ISCSI = 5,
347 SCSI_PROTOCOL_SAS = 6,
348 SCSI_PROTOCOL_ADT = 7,
349 SCSI_PROTOCOL_ATA = 8,
350 SCSI_PROTOCOL_UNSPEC = 0xf,
351};
352
353
354extern const char * scsi_device_type(unsigned type);
355
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358
359
360struct ccs_modesel_head {
361 __u8 _r1;
362 __u8 medium;
363 __u8 _r2;
364 __u8 block_desc_length;
365 __u8 density;
366 __u8 number_blocks_hi;
367 __u8 number_blocks_med;
368 __u8 number_blocks_lo;
369 __u8 _r3;
370 __u8 block_length_hi;
371 __u8 block_length_med;
372 __u8 block_length_lo;
373};
374
375
376
377
378struct scsi_lun {
379 __u8 scsi_lun[8];
380};
381
382
383
384
385#define SCSI_W_LUN_BASE 0xc100
386#define SCSI_W_LUN_REPORT_LUNS (SCSI_W_LUN_BASE + 1)
387#define SCSI_W_LUN_ACCESS_CONTROL (SCSI_W_LUN_BASE + 2)
388#define SCSI_W_LUN_TARGET_LOG_PAGE (SCSI_W_LUN_BASE + 3)
389
390static inline int scsi_is_wlun(u64 lun)
391{
392 return (lun & 0xff00) == SCSI_W_LUN_BASE;
393}
394
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398
399
400#define COMMAND_COMPLETE 0x00
401#define EXTENDED_MESSAGE 0x01
402#define EXTENDED_MODIFY_DATA_POINTER 0x00
403#define EXTENDED_SDTR 0x01
404#define EXTENDED_EXTENDED_IDENTIFY 0x02
405#define EXTENDED_WDTR 0x03
406#define EXTENDED_PPR 0x04
407#define EXTENDED_MODIFY_BIDI_DATA_PTR 0x05
408#define SAVE_POINTERS 0x02
409#define RESTORE_POINTERS 0x03
410#define DISCONNECT 0x04
411#define INITIATOR_ERROR 0x05
412#define ABORT_TASK_SET 0x06
413#define MESSAGE_REJECT 0x07
414#define NOP 0x08
415#define MSG_PARITY_ERROR 0x09
416#define LINKED_CMD_COMPLETE 0x0a
417#define LINKED_FLG_CMD_COMPLETE 0x0b
418#define TARGET_RESET 0x0c
419#define ABORT_TASK 0x0d
420#define CLEAR_TASK_SET 0x0e
421#define INITIATE_RECOVERY 0x0f
422#define RELEASE_RECOVERY 0x10
423#define CLEAR_ACA 0x16
424#define LOGICAL_UNIT_RESET 0x17
425#define SIMPLE_QUEUE_TAG 0x20
426#define HEAD_OF_QUEUE_TAG 0x21
427#define ORDERED_QUEUE_TAG 0x22
428#define IGNORE_WIDE_RESIDUE 0x23
429#define ACA 0x24
430#define QAS_REQUEST 0x55
431
432
433#define BUS_DEVICE_RESET TARGET_RESET
434#define ABORT ABORT_TASK_SET
435
436
437
438
439
440#define DID_OK 0x00
441#define DID_NO_CONNECT 0x01
442#define DID_BUS_BUSY 0x02
443#define DID_TIME_OUT 0x03
444#define DID_BAD_TARGET 0x04
445#define DID_ABORT 0x05
446#define DID_PARITY 0x06
447#define DID_ERROR 0x07
448#define DID_RESET 0x08
449#define DID_BAD_INTR 0x09
450#define DID_PASSTHROUGH 0x0a
451#define DID_SOFT_ERROR 0x0b
452#define DID_IMM_RETRY 0x0c
453#define DID_REQUEUE 0x0d
454
455#define DID_TRANSPORT_DISRUPTED 0x0e
456
457
458
459#define DID_TRANSPORT_FAILFAST 0x0f
460#define DID_TARGET_FAILURE 0x10
461
462#define DID_NEXUS_FAILURE 0x11
463
464#define DID_ALLOC_FAILURE 0x12
465#define DID_MEDIUM_ERROR 0x13
466#define DRIVER_OK 0x00
467
468
469
470
471
472#define DRIVER_BUSY 0x01
473#define DRIVER_SOFT 0x02
474#define DRIVER_MEDIA 0x03
475#define DRIVER_ERROR 0x04
476
477#define DRIVER_INVALID 0x05
478#define DRIVER_TIMEOUT 0x06
479#define DRIVER_HARD 0x07
480#define DRIVER_SENSE 0x08
481
482
483
484
485
486#define NEEDS_RETRY 0x2001
487#define SUCCESS 0x2002
488#define FAILED 0x2003
489#define QUEUED 0x2004
490#define SOFT_ERROR 0x2005
491#define ADD_TO_MLQUEUE 0x2006
492#define TIMEOUT_ERROR 0x2007
493#define SCSI_RETURN_NOT_HANDLED 0x2008
494#define FAST_IO_FAIL 0x2009
495
496
497
498
499#define SCSI_MLQUEUE_HOST_BUSY 0x1055
500#define SCSI_MLQUEUE_DEVICE_BUSY 0x1056
501#define SCSI_MLQUEUE_EH_RETRY 0x1057
502#define SCSI_MLQUEUE_TARGET_BUSY 0x1058
503
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513
514#define status_byte(result) (((result) >> 1) & 0x7f)
515#define msg_byte(result) (((result) >> 8) & 0xff)
516#define host_byte(result) (((result) >> 16) & 0xff)
517#define driver_byte(result) (((result) >> 24) & 0xff)
518
519#define sense_class(sense) (((sense) >> 4) & 0x7)
520#define sense_error(sense) ((sense) & 0xf)
521#define sense_valid(sense) ((sense) & 0x80)
522
523
524
525
526#define FORMAT_UNIT_TIMEOUT (2 * 60 * 60 * HZ)
527#define START_STOP_TIMEOUT (60 * HZ)
528#define MOVE_MEDIUM_TIMEOUT (5 * 60 * HZ)
529#define READ_ELEMENT_STATUS_TIMEOUT (5 * 60 * HZ)
530#define READ_DEFECT_DATA_TIMEOUT (60 * HZ )
531
532
533#define IDENTIFY_BASE 0x80
534#define IDENTIFY(can_disconnect, lun) (IDENTIFY_BASE |\
535 ((can_disconnect) ? 0x40 : 0) |\
536 ((lun) & 0x07))
537
538
539
540
541
542
543
544
545#define SCSI_UNKNOWN 0
546#define SCSI_1 1
547#define SCSI_1_CCS 2
548#define SCSI_2 3
549#define SCSI_3 4
550#define SCSI_SPC_2 5
551#define SCSI_SPC_3 6
552
553
554
555
556#define SCSI_INQ_PQ_CON 0x00
557#define SCSI_INQ_PQ_NOT_CON 0x01
558#define SCSI_INQ_PQ_NOT_CAP 0x03
559
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566
567
568#define SCSI_IOCTL_GET_IDLUN 0x5382
569
570
571
572
573#define SCSI_IOCTL_PROBE_HOST 0x5385
574
575
576#define SCSI_IOCTL_GET_BUS_NUMBER 0x5386
577
578
579#define SCSI_IOCTL_GET_PCI 0x5387
580
581
582static inline __u32 scsi_to_u32(__u8 *ptr)
583{
584 return (ptr[0]<<24) + (ptr[1]<<16) + (ptr[2]<<8) + ptr[3];
585}
586
587#endif
588