2 * Copyright (c) 2003-2009 Silicon Graphics International Corp.
3 * Copyright (c) 2011 Spectra Logic Corporation
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions, and the following disclaimer,
11 * without modification.
12 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
13 * substantially similar to the "NO WARRANTY" disclaimer below
14 * ("Disclaimer") and any redistribution must be conditioned upon
15 * including a substantially similar Disclaimer requirement for further
16 * binary redistribution.
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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29 * POSSIBILITY OF SUCH DAMAGES.
31 * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl_error.c#2 $
34 * CAM Target Layer error reporting routines.
36 * Author: Ken Merry <ken@FreeBSD.org>
39 #include <sys/cdefs.h>
40 __FBSDID("$FreeBSD$");
42 #include <sys/param.h>
43 #include <sys/systm.h>
44 #include <sys/kernel.h>
45 #include <sys/types.h>
46 #include <sys/malloc.h>
48 #include <sys/mutex.h>
49 #include <sys/condvar.h>
50 #include <sys/stddef.h>
51 #include <sys/ctype.h>
52 #include <sys/sysctl.h>
53 #include <machine/stdarg.h>
55 #include <cam/scsi/scsi_all.h>
56 #include <cam/scsi/scsi_da.h>
57 #include <cam/ctl/ctl_io.h>
58 #include <cam/ctl/ctl.h>
59 #include <cam/ctl/ctl_frontend.h>
60 #include <cam/ctl/ctl_frontend_internal.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>
68 ctl_set_sense_data_va(struct scsi_sense_data *sense_data, void *lunptr,
69 scsi_sense_data_type sense_format, int current_error,
70 int sense_key, int asc, int ascq, va_list ap)
74 lun = (struct ctl_lun *)lunptr;
77 * Determine whether to return fixed or descriptor format sense
80 if (sense_format == SSD_TYPE_NONE) {
82 * If the format isn't specified, we only return descriptor
83 * sense if the LUN exists and descriptor sense is turned
87 && (lun->flags & CTL_LUN_SENSE_DESC))
88 sense_format = SSD_TYPE_DESC;
90 sense_format = SSD_TYPE_FIXED;
93 scsi_set_sense_data_va(sense_data, sense_format, current_error,
94 sense_key, asc, ascq, ap);
98 ctl_set_sense_data(struct scsi_sense_data *sense_data, void *lunptr,
99 scsi_sense_data_type sense_format, int current_error,
100 int sense_key, int asc, int ascq, ...)
105 ctl_set_sense_data_va(sense_data, lunptr, sense_format, current_error,
106 sense_key, asc, ascq, ap);
111 ctl_set_sense(struct ctl_scsiio *ctsio, int current_error, int sense_key,
112 int asc, int ascq, ...)
118 * The LUN can't go away until all of the commands have been
119 * completed. Therefore we can safely access the LUN structure and
120 * flags without the lock.
122 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
125 ctl_set_sense_data_va(&ctsio->sense_data,
135 ctsio->scsi_status = SCSI_STATUS_CHECK_COND;
136 ctsio->sense_len = SSD_FULL_SIZE;
137 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE;
141 * Transform fixed sense data into descriptor sense data.
143 * For simplicity's sake, we assume that both sense structures are
144 * SSD_FULL_SIZE. Otherwise, the logic gets more complicated.
147 ctl_sense_to_desc(struct scsi_sense_data_fixed *sense_src,
148 struct scsi_sense_data_desc *sense_dest)
150 struct scsi_sense_stream stream_sense;
154 bzero(sense_dest, sizeof(*sense_dest));
156 if ((sense_src->error_code & SSD_ERRCODE) == SSD_DEFERRED_ERROR)
161 bzero(&stream_sense, sizeof(stream_sense));
164 * Check to see whether any of the tape-specific bits are set. If
165 * so, we'll need a stream sense descriptor.
167 if (sense_src->flags & (SSD_ILI|SSD_EOM|SSD_FILEMARK))
168 stream_bits = sense_src->flags & ~SSD_KEY;
173 * Utilize our sense setting routine to do the transform. If a
174 * value is set in the fixed sense data, set it in the descriptor
175 * data. Otherwise, skip it.
177 ctl_set_sense_data((struct scsi_sense_data *)sense_dest,
179 /*sense_format*/ SSD_TYPE_DESC,
181 /*sense_key*/ sense_src->flags & SSD_KEY,
182 /*asc*/ sense_src->add_sense_code,
183 /*ascq*/ sense_src->add_sense_code_qual,
185 /* Information Bytes */
186 (scsi_4btoul(sense_src->info) != 0) ?
187 SSD_ELEM_INFO : SSD_ELEM_SKIP,
188 sizeof(sense_src->info),
191 /* Command specific bytes */
192 (scsi_4btoul(sense_src->cmd_spec_info) != 0) ?
193 SSD_ELEM_COMMAND : SSD_ELEM_SKIP,
194 sizeof(sense_src->cmd_spec_info),
195 sense_src->cmd_spec_info,
198 (sense_src->fru != 0) ?
199 SSD_ELEM_FRU : SSD_ELEM_SKIP,
200 sizeof(sense_src->fru),
203 /* Sense Key Specific */
204 (sense_src->sense_key_spec[0] & SSD_SCS_VALID) ?
205 SSD_ELEM_SKS : SSD_ELEM_SKIP,
206 sizeof(sense_src->sense_key_spec),
207 sense_src->sense_key_spec,
211 SSD_ELEM_STREAM : SSD_ELEM_SKIP,
219 * Transform descriptor format sense data into fixed sense data.
221 * Some data may be lost in translation, because there are descriptors
222 * thant can't be represented as fixed sense data.
224 * For simplicity's sake, we assume that both sense structures are
225 * SSD_FULL_SIZE. Otherwise, the logic gets more complicated.
228 ctl_sense_to_fixed(struct scsi_sense_data_desc *sense_src,
229 struct scsi_sense_data_fixed *sense_dest)
232 uint8_t *info_ptr = NULL, *cmd_ptr = NULL, *fru_ptr = NULL;
233 uint8_t *sks_ptr = NULL, *stream_ptr = NULL;
234 int info_size = 0, cmd_size = 0, fru_size = 0;
235 int sks_size = 0, stream_size = 0;
238 if ((sense_src->error_code & SSD_ERRCODE) == SSD_DESC_CURRENT_ERROR)
243 for (pos = 0; pos < (int)(sense_src->extra_len - 1);) {
244 struct scsi_sense_desc_header *header;
246 header = (struct scsi_sense_desc_header *)
247 &sense_src->sense_desc[pos];
250 * See if this record goes past the end of the sense data.
251 * It shouldn't, but check just in case.
253 if ((pos + header->length + sizeof(*header)) >
254 sense_src->extra_len)
257 switch (sense_src->sense_desc[pos]) {
258 case SSD_DESC_INFO: {
259 struct scsi_sense_info *info;
261 info = (struct scsi_sense_info *)header;
263 info_ptr = info->info;
264 info_size = sizeof(info->info);
266 pos += info->length +
267 sizeof(struct scsi_sense_desc_header);
270 case SSD_DESC_COMMAND: {
271 struct scsi_sense_command *cmd;
273 cmd = (struct scsi_sense_command *)header;
274 cmd_ptr = cmd->command_info;
275 cmd_size = sizeof(cmd->command_info);
278 sizeof(struct scsi_sense_desc_header);
282 struct scsi_sense_fru *fru;
284 fru = (struct scsi_sense_fru *)header;
286 fru_size = sizeof(fru->fru);
288 sizeof(struct scsi_sense_desc_header);
292 struct scsi_sense_sks *sks;
294 sks = (struct scsi_sense_sks *)header;
295 sks_ptr = sks->sense_key_spec;
296 sks_size = sizeof(sks->sense_key_spec);
299 sizeof(struct scsi_sense_desc_header);
302 case SSD_DESC_STREAM: {
303 struct scsi_sense_stream *stream_sense;
305 stream_sense = (struct scsi_sense_stream *)header;
306 stream_ptr = &stream_sense->byte3;
307 stream_size = sizeof(stream_sense->byte3);
308 pos = stream_sense->length +
309 sizeof(struct scsi_sense_desc_header);
314 * We don't recognize this particular sense
315 * descriptor type, so just skip it.
317 pos += sizeof(*header) + header->length;
322 ctl_set_sense_data((struct scsi_sense_data *)sense_dest,
324 /*sense_format*/ SSD_TYPE_FIXED,
326 /*sense_key*/ sense_src->sense_key & SSD_KEY,
327 /*asc*/ sense_src->add_sense_code,
328 /*ascq*/ sense_src->add_sense_code_qual,
330 /* Information Bytes */
331 (info_ptr != NULL) ? SSD_ELEM_INFO : SSD_ELEM_SKIP,
335 /* Command specific bytes */
336 (cmd_ptr != NULL) ? SSD_ELEM_COMMAND : SSD_ELEM_SKIP,
341 (fru_ptr != NULL) ? SSD_ELEM_FRU : SSD_ELEM_SKIP,
345 /* Sense Key Specific */
346 (sks_ptr != NULL) ? SSD_ELEM_SKS : SSD_ELEM_SKIP,
351 (stream_ptr != NULL) ? SSD_ELEM_STREAM : SSD_ELEM_SKIP,
359 ctl_set_ua(struct ctl_scsiio *ctsio, int asc, int ascq)
363 /*sense_key*/ SSD_KEY_UNIT_ATTENTION,
370 ctl_build_ua(struct ctl_lun *lun, uint32_t initidx,
371 struct scsi_sense_data *sense, scsi_sense_data_type sense_format)
374 ctl_ua_type ua_to_build, ua_to_clear;
378 mtx_assert(&lun->lun_lock, MA_OWNED);
379 p = initidx / CTL_MAX_INIT_PER_PORT;
380 if ((ua = lun->pending_ua[p]) == NULL) {
381 mtx_unlock(&lun->lun_lock);
382 ua = malloc(sizeof(ctl_ua_type) * CTL_MAX_INIT_PER_PORT,
384 mtx_lock(&lun->lun_lock);
385 if (lun->pending_ua[p] == NULL) {
386 lun->pending_ua[p] = ua;
387 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++)
388 ua[i] = CTL_UA_POWERON;
391 ua = lun->pending_ua[p];
394 i = initidx % CTL_MAX_INIT_PER_PORT;
395 if (ua[i] == CTL_UA_NONE)
396 return (CTL_UA_NONE);
398 ua_to_build = (1 << (ffs(ua[i]) - 1));
399 ua_to_clear = ua_to_build;
401 switch (ua_to_build) {
403 /* 29h/01h POWER ON OCCURRED */
408 case CTL_UA_BUS_RESET:
409 /* 29h/02h SCSI BUS RESET OCCURRED */
414 case CTL_UA_TARG_RESET:
415 /* 29h/03h BUS DEVICE RESET FUNCTION OCCURRED*/
420 case CTL_UA_I_T_NEXUS_LOSS:
421 /* 29h/07h I_T NEXUS LOSS OCCURRED */
426 case CTL_UA_LUN_RESET:
427 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET OCCURRED */
429 * Since we don't have a specific ASC/ASCQ pair for a LUN
430 * reset, just return the generic reset code.
435 case CTL_UA_LUN_CHANGE:
436 /* 3Fh/0Eh REPORTED LUNS DATA HAS CHANGED */
440 case CTL_UA_MODE_CHANGE:
441 /* 2Ah/01h MODE PARAMETERS CHANGED */
445 case CTL_UA_LOG_CHANGE:
446 /* 2Ah/02h LOG PARAMETERS CHANGED */
451 /* 29h/06h TRANSCEIVER MODE CHANGED TO LVD */
456 /* 29h/05h TRANSCEIVER MODE CHANGED TO SINGLE-ENDED */
460 case CTL_UA_RES_PREEMPT:
461 /* 2Ah/03h RESERVATIONS PREEMPTED */
465 case CTL_UA_RES_RELEASE:
466 /* 2Ah/04h RESERVATIONS RELEASED */
470 case CTL_UA_REG_PREEMPT:
471 /* 2Ah/05h REGISTRATIONS PREEMPTED */
475 case CTL_UA_ASYM_ACC_CHANGE:
476 /* 2Ah/06n ASYMMETRIC ACCESS STATE CHANGED */
480 case CTL_UA_CAPACITY_CHANGED:
481 /* 2Ah/09n CAPACITY DATA HAS CHANGED */
485 case CTL_UA_THIN_PROV_THRES:
486 /* 38h/07n THIN PROVISIONING SOFT THRESHOLD REACHED */
491 panic("ctl_build_ua: Unknown UA %x", ua_to_build);
494 ctl_set_sense_data(sense,
498 /*sense_key*/ SSD_KEY_UNIT_ATTENTION,
503 /* We're reporting this UA, so clear it */
504 ua[i] &= ~ua_to_clear;
506 return (ua_to_build);
510 ctl_set_overlapped_cmd(struct ctl_scsiio *ctsio)
512 /* OVERLAPPED COMMANDS ATTEMPTED */
515 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
522 ctl_set_overlapped_tag(struct ctl_scsiio *ctsio, uint8_t tag)
524 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */
527 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
534 * Tell the user that there was a problem with the command or data he sent.
537 ctl_set_invalid_field(struct ctl_scsiio *ctsio, int sks_valid, int command,
538 int field, int bit_valid, int bit)
544 /* "Invalid field in CDB" */
547 /* "Invalid field in parameter list" */
552 sks[0] = SSD_SCS_VALID;
554 sks[0] |= SSD_FIELDPTR_CMD;
555 scsi_ulto2b(field, &sks[1]);
558 sks[0] |= SSD_BITPTR_VALID | bit;
563 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
566 /*type*/ (sks_valid != 0) ? SSD_ELEM_SKS : SSD_ELEM_SKIP,
567 /*size*/ sizeof(sks),
573 ctl_set_invalid_opcode(struct ctl_scsiio *ctsio)
575 struct scsi_sense_data *sense;
578 sense = &ctsio->sense_data;
580 sks[0] = SSD_SCS_VALID | SSD_FIELDPTR_CMD;
581 scsi_ulto2b(0, &sks[1]);
583 /* "Invalid command operation code" */
586 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
589 /*type*/ SSD_ELEM_SKS,
590 /*size*/ sizeof(sks),
596 ctl_set_param_len_error(struct ctl_scsiio *ctsio)
598 /* "Parameter list length error" */
601 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
608 ctl_set_already_locked(struct ctl_scsiio *ctsio)
610 /* Vendor unique "Somebody already is locked" */
613 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
620 ctl_set_unsupported_lun(struct ctl_scsiio *ctsio)
622 /* "Logical unit not supported" */
625 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
632 ctl_set_internal_failure(struct ctl_scsiio *ctsio, int sks_valid,
633 uint16_t retry_count)
638 sks[0] = SSD_SCS_VALID;
639 sks[1] = (retry_count >> 8) & 0xff;
640 sks[2] = retry_count & 0xff;
643 /* "Internal target failure" */
646 /*sense_key*/ SSD_KEY_HARDWARE_ERROR,
649 /*type*/ (sks_valid != 0) ? SSD_ELEM_SKS : SSD_ELEM_SKIP,
650 /*size*/ sizeof(sks),
656 ctl_set_medium_error(struct ctl_scsiio *ctsio)
658 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) {
659 /* "Unrecovered read error" */
662 /*sense_key*/ SSD_KEY_MEDIUM_ERROR,
667 /* "Write error - auto reallocation failed" */
670 /*sense_key*/ SSD_KEY_MEDIUM_ERROR,
678 ctl_set_aborted(struct ctl_scsiio *ctsio)
682 /*sense_key*/ SSD_KEY_ABORTED_COMMAND,
689 ctl_set_lba_out_of_range(struct ctl_scsiio *ctsio)
691 /* "Logical block address out of range" */
694 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
701 ctl_set_lun_stopped(struct ctl_scsiio *ctsio)
703 /* "Logical unit not ready, initializing cmd. required" */
706 /*sense_key*/ SSD_KEY_NOT_READY,
713 ctl_set_lun_not_ready(struct ctl_scsiio *ctsio)
715 /* "Logical unit not ready, manual intervention required" */
718 /*sense_key*/ SSD_KEY_NOT_READY,
725 ctl_set_illegal_pr_release(struct ctl_scsiio *ctsio)
727 /* "Invalid release of persistent reservation" */
730 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
737 ctl_set_lun_standby(struct ctl_scsiio *ctsio)
739 /* "Logical unit not ready, target port in standby state" */
742 /*sense_key*/ SSD_KEY_NOT_READY,
749 ctl_set_medium_format_corrupted(struct ctl_scsiio *ctsio)
751 /* "Medium format corrupted" */
754 /*sense_key*/ SSD_KEY_MEDIUM_ERROR,
761 ctl_set_medium_magazine_inaccessible(struct ctl_scsiio *ctsio)
763 /* "Medium magazine not accessible" */
766 /*sense_key*/ SSD_KEY_NOT_READY,
773 ctl_set_data_phase_error(struct ctl_scsiio *ctsio)
775 /* "Data phase error" */
778 /*sense_key*/ SSD_KEY_NOT_READY,
785 ctl_set_reservation_conflict(struct ctl_scsiio *ctsio)
787 struct scsi_sense_data *sense;
789 sense = &ctsio->sense_data;
790 memset(sense, 0, sizeof(*sense));
791 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT;
792 ctsio->sense_len = 0;
793 ctsio->io_hdr.status = CTL_SCSI_ERROR;
797 ctl_set_queue_full(struct ctl_scsiio *ctsio)
799 struct scsi_sense_data *sense;
801 sense = &ctsio->sense_data;
802 memset(sense, 0, sizeof(*sense));
803 ctsio->scsi_status = SCSI_STATUS_QUEUE_FULL;
804 ctsio->sense_len = 0;
805 ctsio->io_hdr.status = CTL_SCSI_ERROR;
809 ctl_set_busy(struct ctl_scsiio *ctsio)
811 struct scsi_sense_data *sense;
813 sense = &ctsio->sense_data;
814 memset(sense, 0, sizeof(*sense));
815 ctsio->scsi_status = SCSI_STATUS_BUSY;
816 ctsio->sense_len = 0;
817 ctsio->io_hdr.status = CTL_SCSI_ERROR;
821 ctl_set_task_aborted(struct ctl_scsiio *ctsio)
823 struct scsi_sense_data *sense;
825 sense = &ctsio->sense_data;
826 memset(sense, 0, sizeof(*sense));
827 ctsio->scsi_status = SCSI_STATUS_TASK_ABORTED;
828 ctsio->sense_len = 0;
829 ctsio->io_hdr.status = CTL_CMD_ABORTED;
833 ctl_set_space_alloc_fail(struct ctl_scsiio *ctsio)
835 /* "Space allocation failed write protect" */
838 /*sense_key*/ SSD_KEY_DATA_PROTECT,
845 ctl_set_success(struct ctl_scsiio *ctsio)
847 struct scsi_sense_data *sense;
849 sense = &ctsio->sense_data;
850 memset(sense, 0, sizeof(*sense));
851 ctsio->scsi_status = SCSI_STATUS_OK;
852 ctsio->sense_len = 0;
853 ctsio->io_hdr.status = CTL_SUCCESS;