aboutsummaryrefslogtreecommitdiff
path: root/sys/cam/ctl/ctl_error.c
blob: 8e6fcdf194ba03fcd947a7e6bb87b73e0d346ccc (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
/*-
 * Copyright (c) 2003-2009 Silicon Graphics International Corp.
 * Copyright (c) 2011 Spectra Logic Corporation
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer,
 *    without modification.
 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
 *    substantially similar to the "NO WARRANTY" disclaimer below
 *    ("Disclaimer") and any redistribution must be conditioned upon
 *    including a substantially similar Disclaimer requirement for further
 *    binary redistribution.
 *
 * NO WARRANTY
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 *
 * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl_error.c#2 $
 */
/*
 * CAM Target Layer error reporting routines.
 *
 * Author: Ken Merry <ken@FreeBSD.org>
 */

#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/types.h>
#include <sys/malloc.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/condvar.h>
#include <sys/stddef.h>
#include <sys/ctype.h>
#include <sys/sysctl.h>
#include <machine/stdarg.h>

#include <cam/scsi/scsi_all.h>
#include <cam/scsi/scsi_da.h>
#include <cam/ctl/ctl_io.h>
#include <cam/ctl/ctl.h>
#include <cam/ctl/ctl_frontend.h>
#include <cam/ctl/ctl_backend.h>
#include <cam/ctl/ctl_ioctl.h>
#include <cam/ctl/ctl_error.h>
#include <cam/ctl/ctl_ha.h>
#include <cam/ctl/ctl_private.h>

void
ctl_set_sense_data_va(struct scsi_sense_data *sense_data, void *lunptr,
		      scsi_sense_data_type sense_format, int current_error,
		      int sense_key, int asc, int ascq, va_list ap) 
{
	struct ctl_lun *lun;

	lun = (struct ctl_lun *)lunptr;

	/*
	 * Determine whether to return fixed or descriptor format sense
	 * data.
	 */
	if (sense_format == SSD_TYPE_NONE) {
		/*
		 * If the format isn't specified, we only return descriptor
		 * sense if the LUN exists and descriptor sense is turned
		 * on for that LUN.
		 */
		if ((lun != NULL)
		 && (lun->flags & CTL_LUN_SENSE_DESC))
			sense_format = SSD_TYPE_DESC;
		else
			sense_format = SSD_TYPE_FIXED;
	}

	scsi_set_sense_data_va(sense_data, sense_format, current_error,
			       sense_key, asc, ascq, ap);
}

void
ctl_set_sense_data(struct scsi_sense_data *sense_data, void *lunptr,
		   scsi_sense_data_type sense_format, int current_error,
		   int sense_key, int asc, int ascq, ...) 
{
	va_list ap;

	va_start(ap, ascq);
	ctl_set_sense_data_va(sense_data, lunptr, sense_format, current_error,
			      sense_key, asc, ascq, ap);
	va_end(ap);
}

void
ctl_set_sense(struct ctl_scsiio *ctsio, int current_error, int sense_key,
	      int asc, int ascq, ...)
{
	va_list ap;
	struct ctl_lun *lun;

	/*
	 * The LUN can't go away until all of the commands have been
	 * completed.  Therefore we can safely access the LUN structure and
	 * flags without the lock.
	 */
	lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;

	va_start(ap, ascq);
	ctl_set_sense_data_va(&ctsio->sense_data,
			      lun,
			      SSD_TYPE_NONE,
			      current_error,
			      sense_key,
			      asc,
			      ascq,
			      ap);
	va_end(ap);

	ctsio->scsi_status = SCSI_STATUS_CHECK_COND;
	ctsio->sense_len = SSD_FULL_SIZE;
	ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE;
}

/*
 * Transform fixed sense data into descriptor sense data.
 * 
 * For simplicity's sake, we assume that both sense structures are
 * SSD_FULL_SIZE.  Otherwise, the logic gets more complicated.
 */
void
ctl_sense_to_desc(struct scsi_sense_data_fixed *sense_src,
		  struct scsi_sense_data_desc *sense_dest)
{
	struct scsi_sense_stream stream_sense;
	int current_error;
	uint8_t stream_bits;

	bzero(sense_dest, sizeof(*sense_dest));

	if ((sense_src->error_code & SSD_ERRCODE) == SSD_DEFERRED_ERROR)
		current_error = 0;
	else
		current_error = 1;

	bzero(&stream_sense, sizeof(stream_sense));

	/*
	 * Check to see whether any of the tape-specific bits are set.  If
	 * so, we'll need a stream sense descriptor.
	 */
	if (sense_src->flags & (SSD_ILI|SSD_EOM|SSD_FILEMARK))
		stream_bits = sense_src->flags & ~SSD_KEY;
	else
		stream_bits = 0;

	/*
	 * Utilize our sense setting routine to do the transform.  If a
	 * value is set in the fixed sense data, set it in the descriptor
	 * data.  Otherwise, skip it.
	 */
	ctl_set_sense_data((struct scsi_sense_data *)sense_dest,
			   /*lun*/ NULL,
			   /*sense_format*/ SSD_TYPE_DESC,
			   current_error,
			   /*sense_key*/ sense_src->flags & SSD_KEY,
			   /*asc*/ sense_src->add_sense_code,
			   /*ascq*/ sense_src->add_sense_code_qual,

			   /* Information Bytes */ 
			   (scsi_4btoul(sense_src->info) != 0) ?
			   SSD_ELEM_INFO : SSD_ELEM_SKIP,
			   sizeof(sense_src->info),
			   sense_src->info,

			   /* Command specific bytes */
			   (scsi_4btoul(sense_src->cmd_spec_info) != 0) ?
			   SSD_ELEM_COMMAND : SSD_ELEM_SKIP,
			   sizeof(sense_src->cmd_spec_info),
			   sense_src->cmd_spec_info,

			   /* FRU */
			   (sense_src->fru != 0) ?
			   SSD_ELEM_FRU : SSD_ELEM_SKIP,
			   sizeof(sense_src->fru),
			   &sense_src->fru,

			   /* Sense Key Specific */
			   (sense_src->sense_key_spec[0] & SSD_SCS_VALID) ?
			   SSD_ELEM_SKS : SSD_ELEM_SKIP,
			   sizeof(sense_src->sense_key_spec),
			   sense_src->sense_key_spec,

			   /* Tape bits */
			   (stream_bits != 0) ?
			   SSD_ELEM_STREAM : SSD_ELEM_SKIP,
			   sizeof(stream_bits),
			   &stream_bits,

			   SSD_ELEM_NONE);
}

/*
 * Transform descriptor format sense data into fixed sense data.
 *
 * Some data may be lost in translation, because there are descriptors
 * thant can't be represented as fixed sense data.
 *
 * For simplicity's sake, we assume that both sense structures are
 * SSD_FULL_SIZE.  Otherwise, the logic gets more complicated.
 */
void
ctl_sense_to_fixed(struct scsi_sense_data_desc *sense_src,
		   struct scsi_sense_data_fixed *sense_dest)
{
	int current_error;
	uint8_t *info_ptr = NULL, *cmd_ptr = NULL, *fru_ptr = NULL;
	uint8_t *sks_ptr = NULL, *stream_ptr = NULL;
	int info_size = 0, cmd_size = 0, fru_size = 0;
	int sks_size = 0, stream_size = 0;
	int pos;

	if ((sense_src->error_code & SSD_ERRCODE) == SSD_DESC_CURRENT_ERROR)
		current_error = 1;
	else
		current_error = 0;

	for (pos = 0; pos < (int)(sense_src->extra_len - 1);) {
		struct scsi_sense_desc_header *header;

		header = (struct scsi_sense_desc_header *)
		    &sense_src->sense_desc[pos];

		/*
		 * See if this record goes past the end of the sense data.
		 * It shouldn't, but check just in case.
		 */
		if ((pos + header->length + sizeof(*header)) >
		     sense_src->extra_len)
			break;

		switch (sense_src->sense_desc[pos]) {
		case SSD_DESC_INFO: {
			struct scsi_sense_info *info;

			info = (struct scsi_sense_info *)header;

			info_ptr = info->info;
			info_size = sizeof(info->info);

			pos += info->length +
			    sizeof(struct scsi_sense_desc_header);
			break;
		}
		case SSD_DESC_COMMAND: {
			struct scsi_sense_command *cmd;

			cmd = (struct scsi_sense_command *)header;
			cmd_ptr = cmd->command_info;
			cmd_size = sizeof(cmd->command_info);

			pos += cmd->length + 
			    sizeof(struct scsi_sense_desc_header);
			break;
		}
		case SSD_DESC_FRU: {
			struct scsi_sense_fru *fru;

			fru = (struct scsi_sense_fru *)header;
			fru_ptr = &fru->fru;
			fru_size = sizeof(fru->fru);
			pos += fru->length +
			    sizeof(struct scsi_sense_desc_header);
			break;
		}
		case SSD_DESC_SKS: {
			struct scsi_sense_sks *sks;

			sks = (struct scsi_sense_sks *)header;
			sks_ptr = sks->sense_key_spec;
			sks_size = sizeof(sks->sense_key_spec);

			pos = sks->length +
			    sizeof(struct scsi_sense_desc_header);
			break;
		}
		case SSD_DESC_STREAM: {
			struct scsi_sense_stream *stream_sense;

			stream_sense = (struct scsi_sense_stream *)header;
			stream_ptr = &stream_sense->byte3;
			stream_size = sizeof(stream_sense->byte3);
			pos = stream_sense->length +
			    sizeof(struct scsi_sense_desc_header);
			break;
		}
		default:
			/*
			 * We don't recognize this particular sense
			 * descriptor type, so just skip it.
			 */
			pos += sizeof(*header) + header->length;
			break;
		}
	}

	ctl_set_sense_data((struct scsi_sense_data *)sense_dest,
			   /*lun*/ NULL,
			   /*sense_format*/ SSD_TYPE_FIXED,
			   current_error,
			   /*sense_key*/ sense_src->sense_key & SSD_KEY,
			   /*asc*/ sense_src->add_sense_code,
			   /*ascq*/ sense_src->add_sense_code_qual,

			   /* Information Bytes */ 
			   (info_ptr != NULL) ? SSD_ELEM_INFO : SSD_ELEM_SKIP,
			   info_size,
			   info_ptr,

			   /* Command specific bytes */
			   (cmd_ptr != NULL) ? SSD_ELEM_COMMAND : SSD_ELEM_SKIP,
			   cmd_size,
			   cmd_ptr,

			   /* FRU */
			   (fru_ptr != NULL) ? SSD_ELEM_FRU : SSD_ELEM_SKIP,
			   fru_size,
			   fru_ptr,

			   /* Sense Key Specific */
			   (sks_ptr != NULL) ? SSD_ELEM_SKS : SSD_ELEM_SKIP,
			   sks_size,
			   sks_ptr,

			   /* Tape bits */
			   (stream_ptr != NULL) ? SSD_ELEM_STREAM : SSD_ELEM_SKIP,
			   stream_size,
			   stream_ptr,

			   SSD_ELEM_NONE);
}

void
ctl_set_ua(struct ctl_scsiio *ctsio, int asc, int ascq)
{
	ctl_set_sense(ctsio,
		      /*current_error*/ 1,
		      /*sense_key*/ SSD_KEY_UNIT_ATTENTION,
		      asc,
		      ascq,
		      SSD_ELEM_NONE);
}

static void
ctl_ua_to_acsq(ctl_ua_type ua_to_build, int *asc, int *ascq,
    ctl_ua_type *ua_to_clear)
{

	switch (ua_to_build) {
	case CTL_UA_POWERON:
		/* 29h/01h  POWER ON OCCURRED */
		*asc = 0x29;
		*ascq = 0x01;
		*ua_to_clear = ~0;
		break;
	case CTL_UA_BUS_RESET:
		/* 29h/02h  SCSI BUS RESET OCCURRED */
		*asc = 0x29;
		*ascq = 0x02;
		*ua_to_clear = ~0;
		break;
	case CTL_UA_TARG_RESET:
		/* 29h/03h  BUS DEVICE RESET FUNCTION OCCURRED*/
		*asc = 0x29;
		*ascq = 0x03;
		*ua_to_clear = ~0;
		break;
	case CTL_UA_I_T_NEXUS_LOSS:
		/* 29h/07h  I_T NEXUS LOSS OCCURRED */
		*asc = 0x29;
		*ascq = 0x07;
		*ua_to_clear = ~0;
		break;
	case CTL_UA_LUN_RESET:
		/* 29h/00h  POWER ON, RESET, OR BUS DEVICE RESET OCCURRED */
		/*
		 * Since we don't have a specific ASC/ASCQ pair for a LUN
		 * reset, just return the generic reset code.
		 */
		*asc = 0x29;
		*ascq = 0x00;
		break;
	case CTL_UA_LUN_CHANGE:
		/* 3Fh/0Eh  REPORTED LUNS DATA HAS CHANGED */
		*asc = 0x3F;
		*ascq = 0x0E;
		break;
	case CTL_UA_MODE_CHANGE:
		/* 2Ah/01h  MODE PARAMETERS CHANGED */
		*asc = 0x2A;
		*ascq = 0x01;
		break;
	case CTL_UA_LOG_CHANGE:
		/* 2Ah/02h  LOG PARAMETERS CHANGED */
		*asc = 0x2A;
		*ascq = 0x02;
		break;
	case CTL_UA_INQ_CHANGE:
		/* 3Fh/03h  INQUIRY DATA HAS CHANGED */
		*asc = 0x3F;
		*ascq = 0x03;
		break;
	case CTL_UA_RES_PREEMPT:
		/* 2Ah/03h  RESERVATIONS PREEMPTED */
		*asc = 0x2A;
		*ascq = 0x03;
		break;
	case CTL_UA_RES_RELEASE:
		/* 2Ah/04h  RESERVATIONS RELEASED */
		*asc = 0x2A;
		*ascq = 0x04;
		break;
	case CTL_UA_REG_PREEMPT:
		/* 2Ah/05h  REGISTRATIONS PREEMPTED */
		*asc = 0x2A;
		*ascq = 0x05;
		break;
	case CTL_UA_ASYM_ACC_CHANGE:
		/* 2Ah/06h  ASYMMETRIC ACCESS STATE CHANGED */
		*asc = 0x2A;
		*ascq = 0x06;
		break;
	case CTL_UA_CAPACITY_CHANGED:
		/* 2Ah/09h  CAPACITY DATA HAS CHANGED */
		*asc = 0x2A;
		*ascq = 0x09;
		break;
	case CTL_UA_THIN_PROV_THRES:
		/* 38h/07h  THIN PROVISIONING SOFT THRESHOLD REACHED */
		*asc = 0x38;
		*ascq = 0x07;
		break;
	default:
		panic("%s: Unknown UA %x", __func__, ua_to_build);
	}
}

ctl_ua_type
ctl_build_qae(struct ctl_lun *lun, uint32_t initidx, uint8_t *resp)
{
	ctl_ua_type ua;
	ctl_ua_type ua_to_build, ua_to_clear;
	int asc, ascq;
	uint32_t p, i;

	mtx_assert(&lun->lun_lock, MA_OWNED);
	p = initidx / CTL_MAX_INIT_PER_PORT;
	i = initidx % CTL_MAX_INIT_PER_PORT;
	if (lun->pending_ua[p] == NULL)
		ua = CTL_UA_POWERON;
	else
		ua = lun->pending_ua[p][i];
	if (ua == CTL_UA_NONE)
		return (CTL_UA_NONE);

	ua_to_build = (1 << (ffs(ua) - 1));
	ua_to_clear = ua_to_build;
	ctl_ua_to_acsq(ua_to_build, &asc, &ascq, &ua_to_clear);

	resp[0] = SSD_KEY_UNIT_ATTENTION;
	if (ua_to_build == ua)
		resp[0] |= 0x10;
	else
		resp[0] |= 0x20;
	resp[1] = asc;
	resp[2] = ascq;
	return (ua);
}

ctl_ua_type
ctl_build_ua(struct ctl_lun *lun, uint32_t initidx,
    struct scsi_sense_data *sense, scsi_sense_data_type sense_format)
{
	ctl_ua_type *ua;
	ctl_ua_type ua_to_build, ua_to_clear;
	int asc, ascq;
	uint32_t p, i;

	mtx_assert(&lun->lun_lock, MA_OWNED);
	p = initidx / CTL_MAX_INIT_PER_PORT;
	if ((ua = lun->pending_ua[p]) == NULL) {
		mtx_unlock(&lun->lun_lock);
		ua = malloc(sizeof(ctl_ua_type) * CTL_MAX_INIT_PER_PORT,
		    M_CTL, M_WAITOK);
		mtx_lock(&lun->lun_lock);
		if (lun->pending_ua[p] == NULL) {
			lun->pending_ua[p] = ua;
			for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++)
				ua[i] = CTL_UA_POWERON;
		} else {
			free(ua, M_CTL);
			ua = lun->pending_ua[p];
		}
	}
	i = initidx % CTL_MAX_INIT_PER_PORT;
	if (ua[i] == CTL_UA_NONE)
		return (CTL_UA_NONE);

	ua_to_build = (1 << (ffs(ua[i]) - 1));
	ua_to_clear = ua_to_build;
	ctl_ua_to_acsq(ua_to_build, &asc, &ascq, &ua_to_clear);

	ctl_set_sense_data(sense,
			   /*lun*/ NULL,
			   sense_format,
			   /*current_error*/ 1,
			   /*sense_key*/ SSD_KEY_UNIT_ATTENTION,
			   asc,
			   ascq,
			   SSD_ELEM_NONE);

	/* We're reporting this UA, so clear it */
	ua[i] &= ~ua_to_clear;

	return (ua_to_build);
}

void
ctl_set_overlapped_cmd(struct ctl_scsiio *ctsio)
{
	/* OVERLAPPED COMMANDS ATTEMPTED */
	ctl_set_sense(ctsio,
		      /*current_error*/ 1,
		      /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
		      /*asc*/ 0x4E,
		      /*ascq*/ 0x00,
		      SSD_ELEM_NONE);
}

void
ctl_set_overlapped_tag(struct ctl_scsiio *ctsio, uint8_t tag)
{
	/* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */
	ctl_set_sense(ctsio,
		      /*current_error*/ 1,
		      /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
		      /*asc*/ 0x4D,
		      /*ascq*/ tag,
		      SSD_ELEM_NONE);
}

/*
 * Tell the user that there was a problem with the command or data he sent.
 */
void
ctl_set_invalid_field(struct ctl_scsiio *ctsio, int sks_valid, int command,
		      int field, int bit_valid, int bit)
{
	uint8_t sks[3];
	int asc;

	if (command != 0) {
		/* "Invalid field in CDB" */
		asc = 0x24;
	} else {
		/* "Invalid field in parameter list" */
		asc = 0x26;
	}

	if (sks_valid) {
		sks[0] = SSD_SCS_VALID;
		if (command)
			sks[0] |= SSD_FIELDPTR_CMD;
		scsi_ulto2b(field, &sks[1]);

		if (bit_valid)
			sks[0] |= SSD_BITPTR_VALID | bit;
	}

	ctl_set_sense(ctsio,
		      /*current_error*/ 1,
		      /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
		      asc,
		      /*ascq*/ 0x00,
		      /*type*/ (sks_valid != 0) ? SSD_ELEM_SKS : SSD_ELEM_SKIP,
		      /*size*/ sizeof(sks),
		      /*data*/ sks,
		      SSD_ELEM_NONE);
}

void
ctl_set_invalid_opcode(struct ctl_scsiio *ctsio)
{
	struct scsi_sense_data *sense;
	uint8_t sks[3];

	sense = &ctsio->sense_data;

	sks[0] = SSD_SCS_VALID | SSD_FIELDPTR_CMD;
	scsi_ulto2b(0, &sks[1]);

	/* "Invalid command operation code" */
	ctl_set_sense(ctsio,
		      /*current_error*/ 1,
		      /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
		      /*asc*/ 0x20,
		      /*ascq*/ 0x00,
		      /*type*/ SSD_ELEM_SKS,
		      /*size*/ sizeof(sks),
		      /*data*/ sks,
		      SSD_ELEM_NONE);
}

void
ctl_set_param_len_error(struct ctl_scsiio *ctsio)
{
	/* "Parameter list length error" */
	ctl_set_sense(ctsio,
		      /*current_error*/ 1,
		      /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
		      /*asc*/ 0x1a,
		      /*ascq*/ 0x00,
		      SSD_ELEM_NONE);
}

void
ctl_set_already_locked(struct ctl_scsiio *ctsio)
{
	/* Vendor unique "Somebody already is locked" */
	ctl_set_sense(ctsio,
		      /*current_error*/ 1,
		      /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
		      /*asc*/ 0x81,
		      /*ascq*/ 0x00,
		      SSD_ELEM_NONE);
}

void
ctl_set_unsupported_lun(struct ctl_scsiio *ctsio)
{
	/* "Logical unit not supported" */
	ctl_set_sense(ctsio,
		      /*current_error*/ 1,
		      /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
		      /*asc*/ 0x25,
		      /*ascq*/ 0x00,
		      SSD_ELEM_NONE);
}

void
ctl_set_internal_failure(struct ctl_scsiio *ctsio, int sks_valid,
			 uint16_t retry_count)
{
	uint8_t sks[3];

	if (sks_valid) {
		sks[0] = SSD_SCS_VALID;
		sks[1] = (retry_count >> 8) & 0xff;
		sks[2] = retry_count & 0xff;
	}

	/* "Internal target failure" */
	ctl_set_sense(ctsio,
		      /*current_error*/ 1,
		      /*sense_key*/ SSD_KEY_HARDWARE_ERROR,
		      /*asc*/ 0x44,
		      /*ascq*/ 0x00,
		      /*type*/ (sks_valid != 0) ? SSD_ELEM_SKS : SSD_ELEM_SKIP,
		      /*size*/ sizeof(sks),
		      /*data*/ sks,
		      SSD_ELEM_NONE);
}

void
ctl_set_medium_error(struct ctl_scsiio *ctsio, int read)
{
	if (read) {
		/* "Unrecovered read error" */
		ctl_set_sense(ctsio,
			      /*current_error*/ 1,
			      /*sense_key*/ SSD_KEY_MEDIUM_ERROR,
			      /*asc*/ 0x11,
			      /*ascq*/ 0x00,
			      SSD_ELEM_NONE);
	} else {
		/* "Write error - auto reallocation failed" */
		ctl_set_sense(ctsio,
			      /*current_error*/ 1,
			      /*sense_key*/ SSD_KEY_MEDIUM_ERROR,
			      /*asc*/ 0x0C,
			      /*ascq*/ 0x02,
			      SSD_ELEM_NONE);
	}
}

void
ctl_set_aborted(struct ctl_scsiio *ctsio)
{
	ctl_set_sense(ctsio,
		      /*current_error*/ 1,
		      /*sense_key*/ SSD_KEY_ABORTED_COMMAND,
		      /*asc*/ 0x45,
		      /*ascq*/ 0x00,
		      SSD_ELEM_NONE);
}

void
ctl_set_lba_out_of_range(struct ctl_scsiio *ctsio)
{
	/* "Logical block address out of range" */
	ctl_set_sense(ctsio,
		      /*current_error*/ 1,
		      /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
		      /*asc*/ 0x21,
		      /*ascq*/ 0x00,
		      SSD_ELEM_NONE);
}

void
ctl_set_lun_stopped(struct ctl_scsiio *ctsio)
{
	/* "Logical unit not ready, initializing cmd. required" */
	ctl_set_sense(ctsio,
		      /*current_error*/ 1,
		      /*sense_key*/ SSD_KEY_NOT_READY,
		      /*asc*/ 0x04,
		      /*ascq*/ 0x02,
		      SSD_ELEM_NONE);
}

void
ctl_set_lun_not_ready(struct ctl_scsiio *ctsio)
{
	/* "Logical unit not ready, manual intervention required" */
	ctl_set_sense(ctsio,
		      /*current_error*/ 1,
		      /*sense_key*/ SSD_KEY_NOT_READY,
		      /*asc*/ 0x04,
		      /*ascq*/ 0x03,
		      SSD_ELEM_NONE);
}

void
ctl_set_illegal_pr_release(struct ctl_scsiio *ctsio)
{
	/* "Invalid release of persistent reservation" */
	ctl_set_sense(ctsio,
		      /*current_error*/ 1,
		      /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
		      /*asc*/ 0x26,
		      /*ascq*/ 0x04,
		      SSD_ELEM_NONE);
}

void
ctl_set_lun_transit(struct ctl_scsiio *ctsio)
{
	/* "Logical unit not ready, asymmetric access state transition" */
	ctl_set_sense(ctsio,
		      /*current_error*/ 1,
		      /*sense_key*/ SSD_KEY_NOT_READY,
		      /*asc*/ 0x04,
		      /*ascq*/ 0x0a,
		      SSD_ELEM_NONE);
}

void
ctl_set_lun_standby(struct ctl_scsiio *ctsio)
{
	/* "Logical unit not ready, target port in standby state" */
	ctl_set_sense(ctsio,
		      /*current_error*/ 1,
		      /*sense_key*/ SSD_KEY_NOT_READY,
		      /*asc*/ 0x04,
		      /*ascq*/ 0x0b,
		      SSD_ELEM_NONE);
}

void
ctl_set_lun_unavail(struct ctl_scsiio *ctsio)
{
	/* "Logical unit not ready, target port in unavailable state" */
	ctl_set_sense(ctsio,
		      /*current_error*/ 1,
		      /*sense_key*/ SSD_KEY_NOT_READY,
		      /*asc*/ 0x04,
		      /*ascq*/ 0x0c,
		      SSD_ELEM_NONE);
}

void
ctl_set_medium_format_corrupted(struct ctl_scsiio *ctsio)
{
	/* "Medium format corrupted" */
	ctl_set_sense(ctsio,
		      /*current_error*/ 1,
		      /*sense_key*/ SSD_KEY_MEDIUM_ERROR,
		      /*asc*/ 0x31,
		      /*ascq*/ 0x00,
		      SSD_ELEM_NONE);
}

void
ctl_set_medium_magazine_inaccessible(struct ctl_scsiio *ctsio)
{
	/* "Medium magazine not accessible" */
	ctl_set_sense(ctsio,
		      /*current_error*/ 1,
		      /*sense_key*/ SSD_KEY_NOT_READY,
		      /*asc*/ 0x3b,
		      /*ascq*/ 0x11,
		      SSD_ELEM_NONE);
}

void
ctl_set_data_phase_error(struct ctl_scsiio *ctsio)
{
	/* "Data phase error" */
	ctl_set_sense(ctsio,
		      /*current_error*/ 1,
		      /*sense_key*/ SSD_KEY_NOT_READY,
		      /*asc*/ 0x4b,
		      /*ascq*/ 0x00,
		      SSD_ELEM_NONE);
}

void
ctl_set_reservation_conflict(struct ctl_scsiio *ctsio)
{
	struct scsi_sense_data *sense;

	sense = &ctsio->sense_data;
	memset(sense, 0, sizeof(*sense));
	ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT;
	ctsio->sense_len = 0;
	ctsio->io_hdr.status = CTL_SCSI_ERROR;
}

void
ctl_set_queue_full(struct ctl_scsiio *ctsio)
{
	struct scsi_sense_data *sense;

	sense = &ctsio->sense_data;
	memset(sense, 0, sizeof(*sense));
	ctsio->scsi_status = SCSI_STATUS_QUEUE_FULL;
	ctsio->sense_len = 0;
	ctsio->io_hdr.status = CTL_SCSI_ERROR;
}

void
ctl_set_busy(struct ctl_scsiio *ctsio)
{
	struct scsi_sense_data *sense;

	sense = &ctsio->sense_data;
	memset(sense, 0, sizeof(*sense));
	ctsio->scsi_status = SCSI_STATUS_BUSY;
	ctsio->sense_len = 0;
	ctsio->io_hdr.status = CTL_SCSI_ERROR;
}

void
ctl_set_task_aborted(struct ctl_scsiio *ctsio)
{
	struct scsi_sense_data *sense;

	sense = &ctsio->sense_data;
	memset(sense, 0, sizeof(*sense));
	ctsio->scsi_status = SCSI_STATUS_TASK_ABORTED;
	ctsio->sense_len = 0;
	ctsio->io_hdr.status = CTL_CMD_ABORTED;
}

void
ctl_set_hw_write_protected(struct ctl_scsiio *ctsio)
{
	/* "Hardware write protected" */
	ctl_set_sense(ctsio,
		      /*current_error*/ 1,
		      /*sense_key*/ SSD_KEY_DATA_PROTECT,
		      /*asc*/ 0x27,
		      /*ascq*/ 0x01,
		      SSD_ELEM_NONE);
}

void
ctl_set_space_alloc_fail(struct ctl_scsiio *ctsio)
{
	/* "Space allocation failed write protect" */
	ctl_set_sense(ctsio,
		      /*current_error*/ 1,
		      /*sense_key*/ SSD_KEY_DATA_PROTECT,
		      /*asc*/ 0x27,
		      /*ascq*/ 0x07,
		      SSD_ELEM_NONE);
}

void
ctl_set_success(struct ctl_scsiio *ctsio)
{
	struct scsi_sense_data *sense;

	sense = &ctsio->sense_data;
	memset(sense, 0, sizeof(*sense));
	ctsio->scsi_status = SCSI_STATUS_OK;
	ctsio->sense_len = 0;
	ctsio->io_hdr.status = CTL_SUCCESS;
}