xref: /freebsd/sys/cam/ctl/ctl_error.c (revision 076ad2f836d5f49dc1375f1677335a48fe0d4b82)
1 /*-
2  * Copyright (c) 2003-2009 Silicon Graphics International Corp.
3  * Copyright (c) 2011 Spectra Logic Corporation
4  * Copyright (c) 2014-2015 Alexander Motin <mav@FreeBSD.org>
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions, and the following disclaimer,
12  *    without modification.
13  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
14  *    substantially similar to the "NO WARRANTY" disclaimer below
15  *    ("Disclaimer") and any redistribution must be conditioned upon
16  *    including a substantially similar Disclaimer requirement for further
17  *    binary redistribution.
18  *
19  * NO WARRANTY
20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
23  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
28  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
29  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30  * POSSIBILITY OF SUCH DAMAGES.
31  *
32  * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl_error.c#2 $
33  */
34 /*
35  * CAM Target Layer error reporting routines.
36  *
37  * Author: Ken Merry <ken@FreeBSD.org>
38  */
39 
40 #include <sys/cdefs.h>
41 __FBSDID("$FreeBSD$");
42 
43 #include <sys/param.h>
44 #include <sys/systm.h>
45 #include <sys/kernel.h>
46 #include <sys/types.h>
47 #include <sys/malloc.h>
48 #include <sys/lock.h>
49 #include <sys/mutex.h>
50 #include <sys/condvar.h>
51 #include <sys/stddef.h>
52 #include <sys/ctype.h>
53 #include <sys/sysctl.h>
54 #include <machine/stdarg.h>
55 
56 #include <cam/scsi/scsi_all.h>
57 #include <cam/scsi/scsi_da.h>
58 #include <cam/ctl/ctl_io.h>
59 #include <cam/ctl/ctl.h>
60 #include <cam/ctl/ctl_frontend.h>
61 #include <cam/ctl/ctl_backend.h>
62 #include <cam/ctl/ctl_ioctl.h>
63 #include <cam/ctl/ctl_error.h>
64 #include <cam/ctl/ctl_ha.h>
65 #include <cam/ctl/ctl_private.h>
66 
67 void
68 ctl_set_sense_data_va(struct scsi_sense_data *sense_data, u_int *sense_len,
69     void *lunptr, scsi_sense_data_type sense_format, int current_error,
70     int sense_key, int asc, int ascq, va_list ap)
71 {
72 	struct ctl_lun *lun;
73 
74 	lun = (struct ctl_lun *)lunptr;
75 
76 	/*
77 	 * Determine whether to return fixed or descriptor format sense
78 	 * data.
79 	 */
80 	if (sense_format == SSD_TYPE_NONE) {
81 		/*
82 		 * If the format isn't specified, we only return descriptor
83 		 * sense if the LUN exists and descriptor sense is turned
84 		 * on for that LUN.
85 		 */
86 		if ((lun != NULL) && (lun->MODE_CTRL.rlec & SCP_DSENSE))
87 			sense_format = SSD_TYPE_DESC;
88 		else
89 			sense_format = SSD_TYPE_FIXED;
90 	}
91 
92 	/*
93 	 * Determine maximum sense data length to return.
94 	 */
95 	if (*sense_len == 0) {
96 		if ((lun != NULL) && (lun->MODE_CTRLE.max_sense != 0))
97 			*sense_len = lun->MODE_CTRLE.max_sense;
98 		else
99 			*sense_len = SSD_FULL_SIZE;
100 	}
101 
102 	scsi_set_sense_data_va(sense_data, sense_len, sense_format,
103 	    current_error, sense_key, asc, ascq, ap);
104 }
105 
106 void
107 ctl_set_sense_data(struct scsi_sense_data *sense_data, u_int *sense_len,
108     void *lunptr, scsi_sense_data_type sense_format, int current_error,
109     int sense_key, int asc, int ascq, ...)
110 {
111 	va_list ap;
112 
113 	va_start(ap, ascq);
114 	ctl_set_sense_data_va(sense_data, sense_len, lunptr, sense_format,
115 	    current_error, sense_key, asc, ascq, ap);
116 	va_end(ap);
117 }
118 
119 void
120 ctl_set_sense(struct ctl_scsiio *ctsio, int current_error, int sense_key,
121 	      int asc, int ascq, ...)
122 {
123 	va_list ap;
124 	struct ctl_lun *lun;
125 	u_int sense_len;
126 
127 	/*
128 	 * The LUN can't go away until all of the commands have been
129 	 * completed.  Therefore we can safely access the LUN structure and
130 	 * flags without the lock.
131 	 */
132 	lun = CTL_LUN(ctsio);
133 
134 	va_start(ap, ascq);
135 	sense_len = 0;
136 	ctl_set_sense_data_va(&ctsio->sense_data, &sense_len,
137 			      lun,
138 			      SSD_TYPE_NONE,
139 			      current_error,
140 			      sense_key,
141 			      asc,
142 			      ascq,
143 			      ap);
144 	va_end(ap);
145 
146 	ctsio->scsi_status = SCSI_STATUS_CHECK_COND;
147 	ctsio->sense_len = sense_len;
148 	ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE;
149 }
150 
151 /*
152  * Transform fixed sense data into descriptor sense data.
153  *
154  * For simplicity's sake, we assume that both sense structures are
155  * SSD_FULL_SIZE.  Otherwise, the logic gets more complicated.
156  */
157 void
158 ctl_sense_to_desc(struct scsi_sense_data_fixed *sense_src,
159 		  struct scsi_sense_data_desc *sense_dest)
160 {
161 	struct scsi_sense_stream stream_sense;
162 	int current_error;
163 	u_int sense_len;
164 	uint8_t stream_bits;
165 
166 	bzero(sense_dest, sizeof(*sense_dest));
167 
168 	if ((sense_src->error_code & SSD_ERRCODE) == SSD_DEFERRED_ERROR)
169 		current_error = 0;
170 	else
171 		current_error = 1;
172 
173 	bzero(&stream_sense, sizeof(stream_sense));
174 
175 	/*
176 	 * Check to see whether any of the tape-specific bits are set.  If
177 	 * so, we'll need a stream sense descriptor.
178 	 */
179 	if (sense_src->flags & (SSD_ILI|SSD_EOM|SSD_FILEMARK))
180 		stream_bits = sense_src->flags & ~SSD_KEY;
181 	else
182 		stream_bits = 0;
183 
184 	/*
185 	 * Utilize our sense setting routine to do the transform.  If a
186 	 * value is set in the fixed sense data, set it in the descriptor
187 	 * data.  Otherwise, skip it.
188 	 */
189 	sense_len = SSD_FULL_SIZE;
190 	ctl_set_sense_data((struct scsi_sense_data *)sense_dest, &sense_len,
191 			   /*lun*/ NULL,
192 			   /*sense_format*/ SSD_TYPE_DESC,
193 			   current_error,
194 			   /*sense_key*/ sense_src->flags & SSD_KEY,
195 			   /*asc*/ sense_src->add_sense_code,
196 			   /*ascq*/ sense_src->add_sense_code_qual,
197 
198 			   /* Information Bytes */
199 			   (sense_src->error_code & SSD_ERRCODE_VALID) ?
200 			   SSD_ELEM_INFO : SSD_ELEM_SKIP,
201 			   sizeof(sense_src->info),
202 			   sense_src->info,
203 
204 			   /* Command specific bytes */
205 			   (scsi_4btoul(sense_src->cmd_spec_info) != 0) ?
206 			   SSD_ELEM_COMMAND : SSD_ELEM_SKIP,
207 			   sizeof(sense_src->cmd_spec_info),
208 			   sense_src->cmd_spec_info,
209 
210 			   /* FRU */
211 			   (sense_src->fru != 0) ?
212 			   SSD_ELEM_FRU : SSD_ELEM_SKIP,
213 			   sizeof(sense_src->fru),
214 			   &sense_src->fru,
215 
216 			   /* Sense Key Specific */
217 			   (sense_src->sense_key_spec[0] & SSD_SCS_VALID) ?
218 			   SSD_ELEM_SKS : SSD_ELEM_SKIP,
219 			   sizeof(sense_src->sense_key_spec),
220 			   sense_src->sense_key_spec,
221 
222 			   /* Tape bits */
223 			   (stream_bits != 0) ?
224 			   SSD_ELEM_STREAM : SSD_ELEM_SKIP,
225 			   sizeof(stream_bits),
226 			   &stream_bits,
227 
228 			   SSD_ELEM_NONE);
229 }
230 
231 /*
232  * Transform descriptor format sense data into fixed sense data.
233  *
234  * Some data may be lost in translation, because there are descriptors
235  * thant can't be represented as fixed sense data.
236  *
237  * For simplicity's sake, we assume that both sense structures are
238  * SSD_FULL_SIZE.  Otherwise, the logic gets more complicated.
239  */
240 void
241 ctl_sense_to_fixed(struct scsi_sense_data_desc *sense_src,
242 		   struct scsi_sense_data_fixed *sense_dest)
243 {
244 	int current_error;
245 	uint8_t *info_ptr = NULL, *cmd_ptr = NULL, *fru_ptr = NULL;
246 	uint8_t *sks_ptr = NULL, *stream_ptr = NULL;
247 	int info_size = 0, cmd_size = 0, fru_size = 0;
248 	int sks_size = 0, stream_size = 0;
249 	int pos;
250 	u_int sense_len;
251 
252 	if ((sense_src->error_code & SSD_ERRCODE) == SSD_DESC_CURRENT_ERROR)
253 		current_error = 1;
254 	else
255 		current_error = 0;
256 
257 	for (pos = 0; pos < (int)(sense_src->extra_len - 1);) {
258 		struct scsi_sense_desc_header *header;
259 
260 		header = (struct scsi_sense_desc_header *)
261 		    &sense_src->sense_desc[pos];
262 
263 		/*
264 		 * See if this record goes past the end of the sense data.
265 		 * It shouldn't, but check just in case.
266 		 */
267 		if ((pos + header->length + sizeof(*header)) >
268 		     sense_src->extra_len)
269 			break;
270 
271 		switch (sense_src->sense_desc[pos]) {
272 		case SSD_DESC_INFO: {
273 			struct scsi_sense_info *info;
274 
275 			info = (struct scsi_sense_info *)header;
276 
277 			info_ptr = info->info;
278 			info_size = sizeof(info->info);
279 
280 			pos += info->length +
281 			    sizeof(struct scsi_sense_desc_header);
282 			break;
283 		}
284 		case SSD_DESC_COMMAND: {
285 			struct scsi_sense_command *cmd;
286 
287 			cmd = (struct scsi_sense_command *)header;
288 			cmd_ptr = cmd->command_info;
289 			cmd_size = sizeof(cmd->command_info);
290 
291 			pos += cmd->length +
292 			    sizeof(struct scsi_sense_desc_header);
293 			break;
294 		}
295 		case SSD_DESC_FRU: {
296 			struct scsi_sense_fru *fru;
297 
298 			fru = (struct scsi_sense_fru *)header;
299 			fru_ptr = &fru->fru;
300 			fru_size = sizeof(fru->fru);
301 			pos += fru->length +
302 			    sizeof(struct scsi_sense_desc_header);
303 			break;
304 		}
305 		case SSD_DESC_SKS: {
306 			struct scsi_sense_sks *sks;
307 
308 			sks = (struct scsi_sense_sks *)header;
309 			sks_ptr = sks->sense_key_spec;
310 			sks_size = sizeof(sks->sense_key_spec);
311 
312 			pos = sks->length +
313 			    sizeof(struct scsi_sense_desc_header);
314 			break;
315 		}
316 		case SSD_DESC_STREAM: {
317 			struct scsi_sense_stream *stream_sense;
318 
319 			stream_sense = (struct scsi_sense_stream *)header;
320 			stream_ptr = &stream_sense->byte3;
321 			stream_size = sizeof(stream_sense->byte3);
322 			pos = stream_sense->length +
323 			    sizeof(struct scsi_sense_desc_header);
324 			break;
325 		}
326 		default:
327 			/*
328 			 * We don't recognize this particular sense
329 			 * descriptor type, so just skip it.
330 			 */
331 			pos += sizeof(*header) + header->length;
332 			break;
333 		}
334 	}
335 
336 	sense_len = SSD_FULL_SIZE;
337 	ctl_set_sense_data((struct scsi_sense_data *)sense_dest, &sense_len,
338 			   /*lun*/ NULL,
339 			   /*sense_format*/ SSD_TYPE_FIXED,
340 			   current_error,
341 			   /*sense_key*/ sense_src->sense_key & SSD_KEY,
342 			   /*asc*/ sense_src->add_sense_code,
343 			   /*ascq*/ sense_src->add_sense_code_qual,
344 
345 			   /* Information Bytes */
346 			   (info_ptr != NULL) ? SSD_ELEM_INFO : SSD_ELEM_SKIP,
347 			   info_size,
348 			   info_ptr,
349 
350 			   /* Command specific bytes */
351 			   (cmd_ptr != NULL) ? SSD_ELEM_COMMAND : SSD_ELEM_SKIP,
352 			   cmd_size,
353 			   cmd_ptr,
354 
355 			   /* FRU */
356 			   (fru_ptr != NULL) ? SSD_ELEM_FRU : SSD_ELEM_SKIP,
357 			   fru_size,
358 			   fru_ptr,
359 
360 			   /* Sense Key Specific */
361 			   (sks_ptr != NULL) ? SSD_ELEM_SKS : SSD_ELEM_SKIP,
362 			   sks_size,
363 			   sks_ptr,
364 
365 			   /* Tape bits */
366 			   (stream_ptr != NULL) ? SSD_ELEM_STREAM : SSD_ELEM_SKIP,
367 			   stream_size,
368 			   stream_ptr,
369 
370 			   SSD_ELEM_NONE);
371 }
372 
373 void
374 ctl_set_ua(struct ctl_scsiio *ctsio, int asc, int ascq)
375 {
376 	ctl_set_sense(ctsio,
377 		      /*current_error*/ 1,
378 		      /*sense_key*/ SSD_KEY_UNIT_ATTENTION,
379 		      asc,
380 		      ascq,
381 		      SSD_ELEM_NONE);
382 }
383 
384 static void
385 ctl_ua_to_ascq(struct ctl_lun *lun, ctl_ua_type ua_to_build, int *asc,
386     int *ascq, ctl_ua_type *ua_to_clear, uint8_t **info)
387 {
388 
389 	switch (ua_to_build) {
390 	case CTL_UA_POWERON:
391 		/* 29h/01h  POWER ON OCCURRED */
392 		*asc = 0x29;
393 		*ascq = 0x01;
394 		*ua_to_clear = ~0;
395 		break;
396 	case CTL_UA_BUS_RESET:
397 		/* 29h/02h  SCSI BUS RESET OCCURRED */
398 		*asc = 0x29;
399 		*ascq = 0x02;
400 		*ua_to_clear = ~0;
401 		break;
402 	case CTL_UA_TARG_RESET:
403 		/* 29h/03h  BUS DEVICE RESET FUNCTION OCCURRED*/
404 		*asc = 0x29;
405 		*ascq = 0x03;
406 		*ua_to_clear = ~0;
407 		break;
408 	case CTL_UA_I_T_NEXUS_LOSS:
409 		/* 29h/07h  I_T NEXUS LOSS OCCURRED */
410 		*asc = 0x29;
411 		*ascq = 0x07;
412 		*ua_to_clear = ~0;
413 		break;
414 	case CTL_UA_LUN_RESET:
415 		/* 29h/00h  POWER ON, RESET, OR BUS DEVICE RESET OCCURRED */
416 		/*
417 		 * Since we don't have a specific ASC/ASCQ pair for a LUN
418 		 * reset, just return the generic reset code.
419 		 */
420 		*asc = 0x29;
421 		*ascq = 0x00;
422 		break;
423 	case CTL_UA_LUN_CHANGE:
424 		/* 3Fh/0Eh  REPORTED LUNS DATA HAS CHANGED */
425 		*asc = 0x3F;
426 		*ascq = 0x0E;
427 		break;
428 	case CTL_UA_MODE_CHANGE:
429 		/* 2Ah/01h  MODE PARAMETERS CHANGED */
430 		*asc = 0x2A;
431 		*ascq = 0x01;
432 		break;
433 	case CTL_UA_LOG_CHANGE:
434 		/* 2Ah/02h  LOG PARAMETERS CHANGED */
435 		*asc = 0x2A;
436 		*ascq = 0x02;
437 		break;
438 	case CTL_UA_INQ_CHANGE:
439 		/* 3Fh/03h  INQUIRY DATA HAS CHANGED */
440 		*asc = 0x3F;
441 		*ascq = 0x03;
442 		break;
443 	case CTL_UA_RES_PREEMPT:
444 		/* 2Ah/03h  RESERVATIONS PREEMPTED */
445 		*asc = 0x2A;
446 		*ascq = 0x03;
447 		break;
448 	case CTL_UA_RES_RELEASE:
449 		/* 2Ah/04h  RESERVATIONS RELEASED */
450 		*asc = 0x2A;
451 		*ascq = 0x04;
452 		break;
453 	case CTL_UA_REG_PREEMPT:
454 		/* 2Ah/05h  REGISTRATIONS PREEMPTED */
455 		*asc = 0x2A;
456 		*ascq = 0x05;
457 		break;
458 	case CTL_UA_ASYM_ACC_CHANGE:
459 		/* 2Ah/06h  ASYMMETRIC ACCESS STATE CHANGED */
460 		*asc = 0x2A;
461 		*ascq = 0x06;
462 		break;
463 	case CTL_UA_CAPACITY_CHANGE:
464 		/* 2Ah/09h  CAPACITY DATA HAS CHANGED */
465 		*asc = 0x2A;
466 		*ascq = 0x09;
467 		break;
468 	case CTL_UA_THIN_PROV_THRES:
469 		/* 38h/07h  THIN PROVISIONING SOFT THRESHOLD REACHED */
470 		*asc = 0x38;
471 		*ascq = 0x07;
472 		*info = lun->ua_tpt_info;
473 		break;
474 	case CTL_UA_MEDIUM_CHANGE:
475 		/* 28h/00h  NOT READY TO READY CHANGE, MEDIUM MAY HAVE CHANGED */
476 		*asc = 0x28;
477 		*ascq = 0x00;
478 		break;
479 	case CTL_UA_IE:
480 		/* Informational exception */
481 		*asc = lun->ie_asc;
482 		*ascq = lun->ie_ascq;
483 		break;
484 	default:
485 		panic("%s: Unknown UA %x", __func__, ua_to_build);
486 	}
487 }
488 
489 ctl_ua_type
490 ctl_build_qae(struct ctl_lun *lun, uint32_t initidx, uint8_t *resp)
491 {
492 	ctl_ua_type ua;
493 	ctl_ua_type ua_to_build, ua_to_clear;
494 	uint8_t *info;
495 	int asc, ascq;
496 	uint32_t p, i;
497 
498 	mtx_assert(&lun->lun_lock, MA_OWNED);
499 	p = initidx / CTL_MAX_INIT_PER_PORT;
500 	i = initidx % CTL_MAX_INIT_PER_PORT;
501 	if (lun->pending_ua[p] == NULL)
502 		ua = CTL_UA_POWERON;
503 	else
504 		ua = lun->pending_ua[p][i];
505 	if (ua == CTL_UA_NONE)
506 		return (CTL_UA_NONE);
507 
508 	ua_to_build = (1 << (ffs(ua) - 1));
509 	ua_to_clear = ua_to_build;
510 	info = NULL;
511 	ctl_ua_to_ascq(lun, ua_to_build, &asc, &ascq, &ua_to_clear, &info);
512 
513 	resp[0] = SSD_KEY_UNIT_ATTENTION;
514 	if (ua_to_build == ua)
515 		resp[0] |= 0x10;
516 	else
517 		resp[0] |= 0x20;
518 	resp[1] = asc;
519 	resp[2] = ascq;
520 	return (ua_to_build);
521 }
522 
523 ctl_ua_type
524 ctl_build_ua(struct ctl_lun *lun, uint32_t initidx,
525     struct scsi_sense_data *sense, u_int *sense_len,
526     scsi_sense_data_type sense_format)
527 {
528 	ctl_ua_type *ua;
529 	ctl_ua_type ua_to_build, ua_to_clear;
530 	uint8_t *info;
531 	int asc, ascq;
532 	uint32_t p, i;
533 
534 	mtx_assert(&lun->lun_lock, MA_OWNED);
535 	mtx_assert(&lun->ctl_softc->ctl_lock, MA_NOTOWNED);
536 	p = initidx / CTL_MAX_INIT_PER_PORT;
537 	if ((ua = lun->pending_ua[p]) == NULL) {
538 		mtx_unlock(&lun->lun_lock);
539 		ua = malloc(sizeof(ctl_ua_type) * CTL_MAX_INIT_PER_PORT,
540 		    M_CTL, M_WAITOK);
541 		mtx_lock(&lun->lun_lock);
542 		if (lun->pending_ua[p] == NULL) {
543 			lun->pending_ua[p] = ua;
544 			for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++)
545 				ua[i] = CTL_UA_POWERON;
546 		} else {
547 			free(ua, M_CTL);
548 			ua = lun->pending_ua[p];
549 		}
550 	}
551 	i = initidx % CTL_MAX_INIT_PER_PORT;
552 	if (ua[i] == CTL_UA_NONE)
553 		return (CTL_UA_NONE);
554 
555 	ua_to_build = (1 << (ffs(ua[i]) - 1));
556 	ua_to_clear = ua_to_build;
557 	info = NULL;
558 	ctl_ua_to_ascq(lun, ua_to_build, &asc, &ascq, &ua_to_clear, &info);
559 
560 	ctl_set_sense_data(sense, sense_len, lun, sense_format, 1,
561 	    /*sense_key*/ SSD_KEY_UNIT_ATTENTION, asc, ascq,
562 	    ((info != NULL) ? SSD_ELEM_INFO : SSD_ELEM_SKIP), 8, info,
563 	    SSD_ELEM_NONE);
564 
565 	/* We're reporting this UA, so clear it */
566 	ua[i] &= ~ua_to_clear;
567 
568 	if (ua_to_build == CTL_UA_LUN_CHANGE) {
569 		mtx_unlock(&lun->lun_lock);
570 		mtx_lock(&lun->ctl_softc->ctl_lock);
571 		ctl_clr_ua_allluns(lun->ctl_softc, initidx, ua_to_build);
572 		mtx_unlock(&lun->ctl_softc->ctl_lock);
573 		mtx_lock(&lun->lun_lock);
574 	} else if (ua_to_build == CTL_UA_THIN_PROV_THRES &&
575 	    (lun->MODE_LBP.main.flags & SLBPP_SITUA) != 0) {
576 		ctl_clr_ua_all(lun, -1, ua_to_build);
577 	}
578 
579 	return (ua_to_build);
580 }
581 
582 void
583 ctl_set_overlapped_cmd(struct ctl_scsiio *ctsio)
584 {
585 	/* OVERLAPPED COMMANDS ATTEMPTED */
586 	ctl_set_sense(ctsio,
587 		      /*current_error*/ 1,
588 		      /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
589 		      /*asc*/ 0x4E,
590 		      /*ascq*/ 0x00,
591 		      SSD_ELEM_NONE);
592 }
593 
594 void
595 ctl_set_overlapped_tag(struct ctl_scsiio *ctsio, uint8_t tag)
596 {
597 	/* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */
598 	ctl_set_sense(ctsio,
599 		      /*current_error*/ 1,
600 		      /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
601 		      /*asc*/ 0x4D,
602 		      /*ascq*/ tag,
603 		      SSD_ELEM_NONE);
604 }
605 
606 /*
607  * Tell the user that there was a problem with the command or data he sent.
608  */
609 void
610 ctl_set_invalid_field(struct ctl_scsiio *ctsio, int sks_valid, int command,
611 		      int field, int bit_valid, int bit)
612 {
613 	uint8_t sks[3];
614 	int asc;
615 
616 	if (command != 0) {
617 		/* "Invalid field in CDB" */
618 		asc = 0x24;
619 	} else {
620 		/* "Invalid field in parameter list" */
621 		asc = 0x26;
622 	}
623 
624 	if (sks_valid) {
625 		sks[0] = SSD_SCS_VALID;
626 		if (command)
627 			sks[0] |= SSD_FIELDPTR_CMD;
628 		scsi_ulto2b(field, &sks[1]);
629 
630 		if (bit_valid)
631 			sks[0] |= SSD_BITPTR_VALID | bit;
632 	}
633 
634 	ctl_set_sense(ctsio,
635 		      /*current_error*/ 1,
636 		      /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
637 		      asc,
638 		      /*ascq*/ 0x00,
639 		      /*type*/ (sks_valid != 0) ? SSD_ELEM_SKS : SSD_ELEM_SKIP,
640 		      /*size*/ sizeof(sks),
641 		      /*data*/ sks,
642 		      SSD_ELEM_NONE);
643 }
644 void
645 ctl_set_invalid_field_ciu(struct ctl_scsiio *ctsio)
646 {
647 
648 	/* "Invalid field in command information unit" */
649 	ctl_set_sense(ctsio,
650 		      /*current_error*/ 1,
651 		      /*sense_key*/ SSD_KEY_ABORTED_COMMAND,
652 		      /*ascq*/ 0x0E,
653 		      /*ascq*/ 0x03,
654 		      SSD_ELEM_NONE);
655 }
656 
657 void
658 ctl_set_invalid_opcode(struct ctl_scsiio *ctsio)
659 {
660 	uint8_t sks[3];
661 
662 	sks[0] = SSD_SCS_VALID | SSD_FIELDPTR_CMD;
663 	scsi_ulto2b(0, &sks[1]);
664 
665 	/* "Invalid command operation code" */
666 	ctl_set_sense(ctsio,
667 		      /*current_error*/ 1,
668 		      /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
669 		      /*asc*/ 0x20,
670 		      /*ascq*/ 0x00,
671 		      /*type*/ SSD_ELEM_SKS,
672 		      /*size*/ sizeof(sks),
673 		      /*data*/ sks,
674 		      SSD_ELEM_NONE);
675 }
676 
677 void
678 ctl_set_param_len_error(struct ctl_scsiio *ctsio)
679 {
680 	/* "Parameter list length error" */
681 	ctl_set_sense(ctsio,
682 		      /*current_error*/ 1,
683 		      /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
684 		      /*asc*/ 0x1a,
685 		      /*ascq*/ 0x00,
686 		      SSD_ELEM_NONE);
687 }
688 
689 void
690 ctl_set_already_locked(struct ctl_scsiio *ctsio)
691 {
692 	/* Vendor unique "Somebody already is locked" */
693 	ctl_set_sense(ctsio,
694 		      /*current_error*/ 1,
695 		      /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
696 		      /*asc*/ 0x81,
697 		      /*ascq*/ 0x00,
698 		      SSD_ELEM_NONE);
699 }
700 
701 void
702 ctl_set_unsupported_lun(struct ctl_scsiio *ctsio)
703 {
704 	/* "Logical unit not supported" */
705 	ctl_set_sense(ctsio,
706 		      /*current_error*/ 1,
707 		      /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
708 		      /*asc*/ 0x25,
709 		      /*ascq*/ 0x00,
710 		      SSD_ELEM_NONE);
711 }
712 
713 void
714 ctl_set_internal_failure(struct ctl_scsiio *ctsio, int sks_valid,
715 			 uint16_t retry_count)
716 {
717 	uint8_t sks[3];
718 
719 	if (sks_valid) {
720 		sks[0] = SSD_SCS_VALID;
721 		sks[1] = (retry_count >> 8) & 0xff;
722 		sks[2] = retry_count & 0xff;
723 	}
724 
725 	/* "Internal target failure" */
726 	ctl_set_sense(ctsio,
727 		      /*current_error*/ 1,
728 		      /*sense_key*/ SSD_KEY_HARDWARE_ERROR,
729 		      /*asc*/ 0x44,
730 		      /*ascq*/ 0x00,
731 		      /*type*/ (sks_valid != 0) ? SSD_ELEM_SKS : SSD_ELEM_SKIP,
732 		      /*size*/ sizeof(sks),
733 		      /*data*/ sks,
734 		      SSD_ELEM_NONE);
735 }
736 
737 void
738 ctl_set_medium_error(struct ctl_scsiio *ctsio, int read)
739 {
740 	if (read) {
741 		/* "Unrecovered read error" */
742 		ctl_set_sense(ctsio,
743 			      /*current_error*/ 1,
744 			      /*sense_key*/ SSD_KEY_MEDIUM_ERROR,
745 			      /*asc*/ 0x11,
746 			      /*ascq*/ 0x00,
747 			      SSD_ELEM_NONE);
748 	} else {
749 		/* "Write error - auto reallocation failed" */
750 		ctl_set_sense(ctsio,
751 			      /*current_error*/ 1,
752 			      /*sense_key*/ SSD_KEY_MEDIUM_ERROR,
753 			      /*asc*/ 0x0C,
754 			      /*ascq*/ 0x02,
755 			      SSD_ELEM_NONE);
756 	}
757 }
758 
759 void
760 ctl_set_aborted(struct ctl_scsiio *ctsio)
761 {
762 	ctl_set_sense(ctsio,
763 		      /*current_error*/ 1,
764 		      /*sense_key*/ SSD_KEY_ABORTED_COMMAND,
765 		      /*asc*/ 0x45,
766 		      /*ascq*/ 0x00,
767 		      SSD_ELEM_NONE);
768 }
769 
770 void
771 ctl_set_lba_out_of_range(struct ctl_scsiio *ctsio, uint64_t lba)
772 {
773 	uint8_t	info[8];
774 
775 	scsi_u64to8b(lba, info);
776 
777 	/* "Logical block address out of range" */
778 	ctl_set_sense(ctsio,
779 		      /*current_error*/ 1,
780 		      /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
781 		      /*asc*/ 0x21,
782 		      /*ascq*/ 0x00,
783 		      /*type*/ (lba != 0) ? SSD_ELEM_INFO : SSD_ELEM_SKIP,
784 		      /*size*/ sizeof(info), /*data*/ &info,
785 		      SSD_ELEM_NONE);
786 }
787 
788 void
789 ctl_set_lun_stopped(struct ctl_scsiio *ctsio)
790 {
791 	/* "Logical unit not ready, initializing cmd. required" */
792 	ctl_set_sense(ctsio,
793 		      /*current_error*/ 1,
794 		      /*sense_key*/ SSD_KEY_NOT_READY,
795 		      /*asc*/ 0x04,
796 		      /*ascq*/ 0x02,
797 		      SSD_ELEM_NONE);
798 }
799 
800 void
801 ctl_set_lun_int_reqd(struct ctl_scsiio *ctsio)
802 {
803 	/* "Logical unit not ready, manual intervention required" */
804 	ctl_set_sense(ctsio,
805 		      /*current_error*/ 1,
806 		      /*sense_key*/ SSD_KEY_NOT_READY,
807 		      /*asc*/ 0x04,
808 		      /*ascq*/ 0x03,
809 		      SSD_ELEM_NONE);
810 }
811 
812 void
813 ctl_set_lun_ejected(struct ctl_scsiio *ctsio)
814 {
815 	/* "Medium not present - tray open" */
816 	ctl_set_sense(ctsio,
817 		      /*current_error*/ 1,
818 		      /*sense_key*/ SSD_KEY_NOT_READY,
819 		      /*asc*/ 0x3A,
820 		      /*ascq*/ 0x02,
821 		      SSD_ELEM_NONE);
822 }
823 
824 void
825 ctl_set_lun_no_media(struct ctl_scsiio *ctsio)
826 {
827 	/* "Medium not present - tray closed" */
828 	ctl_set_sense(ctsio,
829 		      /*current_error*/ 1,
830 		      /*sense_key*/ SSD_KEY_NOT_READY,
831 		      /*asc*/ 0x3A,
832 		      /*ascq*/ 0x01,
833 		      SSD_ELEM_NONE);
834 }
835 
836 void
837 ctl_set_illegal_pr_release(struct ctl_scsiio *ctsio)
838 {
839 	/* "Invalid release of persistent reservation" */
840 	ctl_set_sense(ctsio,
841 		      /*current_error*/ 1,
842 		      /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
843 		      /*asc*/ 0x26,
844 		      /*ascq*/ 0x04,
845 		      SSD_ELEM_NONE);
846 }
847 
848 void
849 ctl_set_lun_transit(struct ctl_scsiio *ctsio)
850 {
851 	/* "Logical unit not ready, asymmetric access state transition" */
852 	ctl_set_sense(ctsio,
853 		      /*current_error*/ 1,
854 		      /*sense_key*/ SSD_KEY_NOT_READY,
855 		      /*asc*/ 0x04,
856 		      /*ascq*/ 0x0a,
857 		      SSD_ELEM_NONE);
858 }
859 
860 void
861 ctl_set_lun_standby(struct ctl_scsiio *ctsio)
862 {
863 	/* "Logical unit not ready, target port in standby state" */
864 	ctl_set_sense(ctsio,
865 		      /*current_error*/ 1,
866 		      /*sense_key*/ SSD_KEY_NOT_READY,
867 		      /*asc*/ 0x04,
868 		      /*ascq*/ 0x0b,
869 		      SSD_ELEM_NONE);
870 }
871 
872 void
873 ctl_set_lun_unavail(struct ctl_scsiio *ctsio)
874 {
875 	/* "Logical unit not ready, target port in unavailable state" */
876 	ctl_set_sense(ctsio,
877 		      /*current_error*/ 1,
878 		      /*sense_key*/ SSD_KEY_NOT_READY,
879 		      /*asc*/ 0x04,
880 		      /*ascq*/ 0x0c,
881 		      SSD_ELEM_NONE);
882 }
883 
884 void
885 ctl_set_medium_format_corrupted(struct ctl_scsiio *ctsio)
886 {
887 	/* "Medium format corrupted" */
888 	ctl_set_sense(ctsio,
889 		      /*current_error*/ 1,
890 		      /*sense_key*/ SSD_KEY_MEDIUM_ERROR,
891 		      /*asc*/ 0x31,
892 		      /*ascq*/ 0x00,
893 		      SSD_ELEM_NONE);
894 }
895 
896 void
897 ctl_set_medium_magazine_inaccessible(struct ctl_scsiio *ctsio)
898 {
899 	/* "Medium magazine not accessible" */
900 	ctl_set_sense(ctsio,
901 		      /*current_error*/ 1,
902 		      /*sense_key*/ SSD_KEY_NOT_READY,
903 		      /*asc*/ 0x3b,
904 		      /*ascq*/ 0x11,
905 		      SSD_ELEM_NONE);
906 }
907 
908 void
909 ctl_set_data_phase_error(struct ctl_scsiio *ctsio)
910 {
911 	/* "Data phase error" */
912 	ctl_set_sense(ctsio,
913 		      /*current_error*/ 1,
914 		      /*sense_key*/ SSD_KEY_NOT_READY,
915 		      /*asc*/ 0x4b,
916 		      /*ascq*/ 0x00,
917 		      SSD_ELEM_NONE);
918 }
919 
920 void
921 ctl_set_reservation_conflict(struct ctl_scsiio *ctsio)
922 {
923 
924 	ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT;
925 	ctsio->sense_len = 0;
926 	ctsio->io_hdr.status = CTL_SCSI_ERROR;
927 }
928 
929 void
930 ctl_set_queue_full(struct ctl_scsiio *ctsio)
931 {
932 
933 	ctsio->scsi_status = SCSI_STATUS_QUEUE_FULL;
934 	ctsio->sense_len = 0;
935 	ctsio->io_hdr.status = CTL_SCSI_ERROR;
936 }
937 
938 void
939 ctl_set_busy(struct ctl_scsiio *ctsio)
940 {
941 
942 	ctsio->scsi_status = SCSI_STATUS_BUSY;
943 	ctsio->sense_len = 0;
944 	ctsio->io_hdr.status = CTL_SCSI_ERROR;
945 }
946 
947 void
948 ctl_set_task_aborted(struct ctl_scsiio *ctsio)
949 {
950 
951 	ctsio->scsi_status = SCSI_STATUS_TASK_ABORTED;
952 	ctsio->sense_len = 0;
953 	ctsio->io_hdr.status = CTL_CMD_ABORTED;
954 }
955 
956 void
957 ctl_set_hw_write_protected(struct ctl_scsiio *ctsio)
958 {
959 	/* "Hardware write protected" */
960 	ctl_set_sense(ctsio,
961 		      /*current_error*/ 1,
962 		      /*sense_key*/ SSD_KEY_DATA_PROTECT,
963 		      /*asc*/ 0x27,
964 		      /*ascq*/ 0x01,
965 		      SSD_ELEM_NONE);
966 }
967 
968 void
969 ctl_set_space_alloc_fail(struct ctl_scsiio *ctsio)
970 {
971 	/* "Space allocation failed write protect" */
972 	ctl_set_sense(ctsio,
973 		      /*current_error*/ 1,
974 		      /*sense_key*/ SSD_KEY_DATA_PROTECT,
975 		      /*asc*/ 0x27,
976 		      /*ascq*/ 0x07,
977 		      SSD_ELEM_NONE);
978 }
979 
980 void
981 ctl_set_success(struct ctl_scsiio *ctsio)
982 {
983 
984 	ctsio->scsi_status = SCSI_STATUS_OK;
985 	ctsio->sense_len = 0;
986 	ctsio->io_hdr.status = CTL_SUCCESS;
987 }
988