2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2011 Alexander Motin <mav@FreeBSD.org>
5 * Copyright (c) 2000 - 2008 Søren Schmidt <sos@FreeBSD.org>
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
33 #include <sys/param.h>
35 #include <sys/endian.h>
36 #include <sys/kernel.h>
38 #include <sys/limits.h>
40 #include <sys/malloc.h>
41 #include <sys/mutex.h>
42 #include <sys/systm.h>
43 #include <sys/taskqueue.h>
44 #include <geom/geom.h>
45 #include <geom/geom_dbg.h>
46 #include "geom/raid/g_raid.h"
47 #include "g_raid_md_if.h"
49 static MALLOC_DEFINE(M_MD_SII, "md_sii_data", "GEOM_RAID SiI metadata");
51 struct sii_raid_conf {
52 uint16_t ata_params_00_53[54];
53 uint64_t total_sectors; /* 54 - 57 */
54 uint16_t ata_params_58_81[72];
55 uint16_t product_id; /* 130 */
56 uint16_t vendor_id; /* 131 */
57 uint16_t version_minor; /* 132 */
58 uint16_t version_major; /* 133 */
59 uint8_t timestamp[6]; /* 134 - 136 */
60 uint16_t strip_sectors; /* 137 */
62 uint8_t disk_number; /* 139 */
64 #define SII_T_RAID0 0x00
65 #define SII_T_RAID1 0x01
66 #define SII_T_RAID01 0x02
67 #define SII_T_SPARE 0x03
68 #define SII_T_CONCAT 0x04
69 #define SII_T_RAID5 0x10
70 #define SII_T_RESERVED 0xfd
71 #define SII_T_JBOD 0xff
73 uint8_t raid0_disks; /* 140 */
75 uint8_t raid1_disks; /* 141 */
77 uint64_t rebuild_lba; /* 142 - 145 */
78 uint32_t generation; /* 146 - 147 */
79 uint8_t disk_status; /* 148 */
80 #define SII_S_CURRENT 0x01
81 #define SII_S_REBUILD 0x02
82 #define SII_S_DROPPED 0x03
83 #define SII_S_REMOVED 0x04
86 #define SII_S_ONLINE 0x01
87 #define SII_S_AVAILABLE 0x02
89 uint8_t raid_location; /* 149 */
90 uint8_t disk_location;
91 uint8_t auto_rebuild; /* 150 */
92 #define SII_R_REBUILD 0x00
93 #define SII_R_NOREBUILD 0xff
96 uint8_t name[16]; /* 151 - 158 */
97 uint16_t checksum; /* 159 */
98 uint16_t ata_params_160_255[96];
101 struct g_raid_md_sii_perdisk {
102 struct sii_raid_conf *pd_meta;
107 struct g_raid_md_sii_object {
108 struct g_raid_md_object mdio_base;
109 uint8_t mdio_timestamp[6];
110 uint8_t mdio_location;
111 uint32_t mdio_generation;
112 struct sii_raid_conf *mdio_meta;
113 struct callout mdio_start_co; /* STARTING state timer. */
114 int mdio_total_disks;
115 int mdio_disks_present;
118 struct root_hold_token *mdio_rootmount; /* Root mount delay token. */
121 static g_raid_md_create_t g_raid_md_create_sii;
122 static g_raid_md_taste_t g_raid_md_taste_sii;
123 static g_raid_md_event_t g_raid_md_event_sii;
124 static g_raid_md_ctl_t g_raid_md_ctl_sii;
125 static g_raid_md_write_t g_raid_md_write_sii;
126 static g_raid_md_fail_disk_t g_raid_md_fail_disk_sii;
127 static g_raid_md_free_disk_t g_raid_md_free_disk_sii;
128 static g_raid_md_free_t g_raid_md_free_sii;
130 static kobj_method_t g_raid_md_sii_methods[] = {
131 KOBJMETHOD(g_raid_md_create, g_raid_md_create_sii),
132 KOBJMETHOD(g_raid_md_taste, g_raid_md_taste_sii),
133 KOBJMETHOD(g_raid_md_event, g_raid_md_event_sii),
134 KOBJMETHOD(g_raid_md_ctl, g_raid_md_ctl_sii),
135 KOBJMETHOD(g_raid_md_write, g_raid_md_write_sii),
136 KOBJMETHOD(g_raid_md_fail_disk, g_raid_md_fail_disk_sii),
137 KOBJMETHOD(g_raid_md_free_disk, g_raid_md_free_disk_sii),
138 KOBJMETHOD(g_raid_md_free, g_raid_md_free_sii),
142 static struct g_raid_md_class g_raid_md_sii_class = {
144 g_raid_md_sii_methods,
145 sizeof(struct g_raid_md_sii_object),
151 g_raid_md_sii_print(struct sii_raid_conf *meta)
154 if (g_raid_debug < 1)
157 printf("********* ATA SiI RAID Metadata *********\n");
158 printf("total_sectors %llu\n",
159 (long long unsigned)meta->total_sectors);
160 printf("product_id 0x%04x\n", meta->product_id);
161 printf("vendor_id 0x%04x\n", meta->vendor_id);
162 printf("version_minor 0x%04x\n", meta->version_minor);
163 printf("version_major 0x%04x\n", meta->version_major);
164 printf("timestamp 0x%02x%02x%02x%02x%02x%02x\n",
165 meta->timestamp[5], meta->timestamp[4], meta->timestamp[3],
166 meta->timestamp[2], meta->timestamp[1], meta->timestamp[0]);
167 printf("strip_sectors %d\n", meta->strip_sectors);
168 printf("disk_number %d\n", meta->disk_number);
169 printf("type 0x%02x\n", meta->type);
170 printf("raid0_disks %d\n", meta->raid0_disks);
171 printf("raid0_ident %d\n", meta->raid0_ident);
172 printf("raid1_disks %d\n", meta->raid1_disks);
173 printf("raid1_ident %d\n", meta->raid1_ident);
174 printf("rebuild_lba %llu\n",
175 (long long unsigned)meta->rebuild_lba);
176 printf("generation %d\n", meta->generation);
177 printf("disk_status %d\n", meta->disk_status);
178 printf("raid_status %d\n", meta->raid_status);
179 printf("raid_location %d\n", meta->raid_location);
180 printf("disk_location %d\n", meta->disk_location);
181 printf("auto_rebuild %d\n", meta->auto_rebuild);
182 printf("name <%.16s>\n", meta->name);
183 printf("checksum 0x%04x\n", meta->checksum);
184 printf("=================================================\n");
187 static struct sii_raid_conf *
188 sii_meta_copy(struct sii_raid_conf *meta)
190 struct sii_raid_conf *nmeta;
192 nmeta = malloc(sizeof(*meta), M_MD_SII, M_WAITOK);
193 memcpy(nmeta, meta, sizeof(*meta));
198 sii_meta_total_disks(struct sii_raid_conf *meta)
201 switch (meta->type) {
205 return (meta->raid0_disks);
207 return (meta->raid1_disks);
209 return (meta->raid0_disks * meta->raid1_disks);
218 sii_meta_disk_pos(struct sii_raid_conf *meta, struct sii_raid_conf *pdmeta)
221 if (pdmeta->type == SII_T_SPARE)
224 if (memcmp(&meta->timestamp, &pdmeta->timestamp, 6) != 0)
227 switch (pdmeta->type) {
232 return (pdmeta->disk_number);
234 return (pdmeta->raid1_ident * pdmeta->raid1_disks +
235 pdmeta->raid0_ident);
243 sii_meta_get_name(struct sii_raid_conf *meta, char *buf)
247 strncpy(buf, meta->name, 16);
249 for (i = 15; i >= 0; i--) {
257 sii_meta_put_name(struct sii_raid_conf *meta, char *buf)
260 memset(meta->name, 0x20, 16);
261 memcpy(meta->name, buf, MIN(strlen(buf), 16));
264 static struct sii_raid_conf *
265 sii_meta_read(struct g_consumer *cp)
267 struct g_provider *pp;
268 struct sii_raid_conf *meta;
271 uint16_t checksum, *ptr;
275 /* Read the anchor sector. */
276 buf = g_read_data(cp,
277 pp->mediasize - pp->sectorsize, pp->sectorsize, &error);
279 G_RAID_DEBUG(1, "Cannot read metadata from %s (error=%d).",
283 meta = (struct sii_raid_conf *)buf;
285 /* Check vendor ID. */
286 if (meta->vendor_id != 0x1095) {
287 G_RAID_DEBUG(1, "SiI vendor ID check failed on %s (0x%04x)",
288 pp->name, meta->vendor_id);
293 /* Check metadata major version. */
294 if (meta->version_major != 2) {
295 G_RAID_DEBUG(1, "SiI version check failed on %s (%d.%d)",
296 pp->name, meta->version_major, meta->version_minor);
300 meta = malloc(sizeof(*meta), M_MD_SII, M_WAITOK);
301 memcpy(meta, buf, min(sizeof(*meta), pp->sectorsize));
304 /* Check metadata checksum. */
305 for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i <= 159; i++)
308 G_RAID_DEBUG(1, "SiI checksum check failed on %s", pp->name);
309 free(meta, M_MD_SII);
313 /* Check raid type. */
314 if (meta->type != SII_T_RAID0 && meta->type != SII_T_RAID1 &&
315 meta->type != SII_T_RAID01 && meta->type != SII_T_SPARE &&
316 meta->type != SII_T_RAID5 && meta->type != SII_T_CONCAT &&
317 meta->type != SII_T_JBOD) {
318 G_RAID_DEBUG(1, "SiI unknown RAID level on %s (0x%02x)",
319 pp->name, meta->type);
320 free(meta, M_MD_SII);
328 sii_meta_write(struct g_consumer *cp, struct sii_raid_conf *meta)
330 struct g_provider *pp;
333 uint16_t checksum, *ptr;
337 /* Recalculate checksum for case if metadata were changed. */
339 for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i < 159; i++)
341 meta->checksum -= checksum;
343 /* Create and fill buffer. */
344 buf = malloc(pp->sectorsize, M_MD_SII, M_WAITOK | M_ZERO);
345 memcpy(buf, meta, sizeof(*meta));
347 /* Write 4 copies of metadata. */
348 for (i = 0; i < 4; i++) {
349 error = g_write_data(cp,
350 pp->mediasize - (pp->sectorsize * (1 + 0x200 * i)),
351 buf, pp->sectorsize);
353 G_RAID_DEBUG(1, "Cannot write metadata to %s (error=%d).",
364 sii_meta_erase(struct g_consumer *cp)
366 struct g_provider *pp;
371 buf = malloc(pp->sectorsize, M_MD_SII, M_WAITOK | M_ZERO);
372 /* Write 4 copies of metadata. */
373 for (i = 0; i < 4; i++) {
374 error = g_write_data(cp,
375 pp->mediasize - (pp->sectorsize * (1 + 0x200 * i)),
376 buf, pp->sectorsize);
378 G_RAID_DEBUG(1, "Cannot erase metadata on %s (error=%d).",
387 sii_meta_write_spare(struct g_consumer *cp)
389 struct sii_raid_conf *meta;
392 meta = malloc(sizeof(*meta), M_MD_SII, M_WAITOK | M_ZERO);
393 meta->total_sectors = cp->provider->mediasize /
394 cp->provider->sectorsize - 0x800;
395 meta->vendor_id = 0x1095;
396 meta->version_minor = 0;
397 meta->version_major = 2;
398 meta->timestamp[0] = arc4random();
399 meta->timestamp[1] = arc4random();
400 meta->timestamp[2] = arc4random();
401 meta->timestamp[3] = arc4random();
402 meta->timestamp[4] = arc4random();
403 meta->timestamp[5] = arc4random();
404 meta->type = SII_T_SPARE;
405 meta->generation = 1;
406 meta->raid1_ident = 0xff;
407 meta->raid_location = arc4random();
408 error = sii_meta_write(cp, meta);
409 free(meta, M_MD_SII);
413 static struct g_raid_disk *
414 g_raid_md_sii_get_disk(struct g_raid_softc *sc, int id)
416 struct g_raid_disk *disk;
417 struct g_raid_md_sii_perdisk *pd;
419 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
420 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
421 if (pd->pd_disk_pos == id)
428 g_raid_md_sii_supported(int level, int qual, int disks, int force)
434 case G_RAID_VOLUME_RL_RAID0:
437 if (!force && (disks < 2 || disks > 6))
440 case G_RAID_VOLUME_RL_RAID1:
443 if (!force && (disks != 2))
446 case G_RAID_VOLUME_RL_RAID1E:
451 if (!force && (disks < 4))
454 case G_RAID_VOLUME_RL_SINGLE:
458 case G_RAID_VOLUME_RL_CONCAT:
462 case G_RAID_VOLUME_RL_RAID5:
465 if (qual != G_RAID_VOLUME_RLQ_R5LS)
471 if (level != G_RAID_VOLUME_RL_RAID5 && qual != G_RAID_VOLUME_RLQ_NONE)
477 g_raid_md_sii_start_disk(struct g_raid_disk *disk)
479 struct g_raid_softc *sc;
480 struct g_raid_subdisk *sd, *tmpsd;
481 struct g_raid_disk *olddisk, *tmpdisk;
482 struct g_raid_md_object *md;
483 struct g_raid_md_sii_object *mdi;
484 struct g_raid_md_sii_perdisk *pd, *oldpd;
485 struct sii_raid_conf *meta;
486 int disk_pos, resurrection = 0;
490 mdi = (struct g_raid_md_sii_object *)md;
491 meta = mdi->mdio_meta;
492 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
495 /* Find disk position in metadata by its serial. */
496 if (pd->pd_meta != NULL)
497 disk_pos = sii_meta_disk_pos(meta, pd->pd_meta);
501 G_RAID_DEBUG1(1, sc, "Unknown, probably new or stale disk");
502 /* If we are in the start process, that's all for now. */
503 if (!mdi->mdio_started)
506 * If we have already started - try to get use of the disk.
507 * Try to replace OFFLINE disks first, then FAILED.
509 TAILQ_FOREACH(tmpdisk, &sc->sc_disks, d_next) {
510 if (tmpdisk->d_state != G_RAID_DISK_S_OFFLINE &&
511 tmpdisk->d_state != G_RAID_DISK_S_FAILED)
513 /* Make sure this disk is big enough. */
514 TAILQ_FOREACH(sd, &tmpdisk->d_subdisks, sd_next) {
515 if (sd->sd_offset + sd->sd_size + 512 >
518 "Disk too small (%ju < %ju)",
520 sd->sd_offset + sd->sd_size + 512);
526 if (tmpdisk->d_state == G_RAID_DISK_S_OFFLINE) {
529 } else if (olddisk == NULL)
532 if (olddisk == NULL) {
534 if (disk_pos == -3 || pd->pd_disk_pos == -3) {
535 g_raid_change_disk_state(disk,
536 G_RAID_DISK_S_SPARE);
539 g_raid_change_disk_state(disk,
540 G_RAID_DISK_S_STALE);
544 oldpd = (struct g_raid_md_sii_perdisk *)olddisk->d_md_data;
545 disk_pos = oldpd->pd_disk_pos;
549 if (olddisk == NULL) {
550 /* Find placeholder by position. */
551 olddisk = g_raid_md_sii_get_disk(sc, disk_pos);
553 panic("No disk at position %d!", disk_pos);
554 if (olddisk->d_state != G_RAID_DISK_S_OFFLINE) {
555 G_RAID_DEBUG1(1, sc, "More than one disk for pos %d",
557 g_raid_change_disk_state(disk, G_RAID_DISK_S_STALE);
560 oldpd = (struct g_raid_md_sii_perdisk *)olddisk->d_md_data;
563 /* Replace failed disk or placeholder with new disk. */
564 TAILQ_FOREACH_SAFE(sd, &olddisk->d_subdisks, sd_next, tmpsd) {
565 TAILQ_REMOVE(&olddisk->d_subdisks, sd, sd_next);
566 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next);
569 oldpd->pd_disk_pos = -2;
570 pd->pd_disk_pos = disk_pos;
572 /* If it was placeholder -- destroy it. */
573 if (olddisk->d_state == G_RAID_DISK_S_OFFLINE) {
574 g_raid_destroy_disk(olddisk);
576 /* Otherwise, make it STALE_FAILED. */
577 g_raid_change_disk_state(olddisk, G_RAID_DISK_S_STALE_FAILED);
580 /* Welcome the new disk. */
582 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE);
583 else if (pd->pd_meta->disk_status == SII_S_CURRENT ||
584 pd->pd_meta->disk_status == SII_S_REBUILD)
585 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE);
587 g_raid_change_disk_state(disk, G_RAID_DISK_S_FAILED);
588 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) {
591 * Different disks may have different sizes,
592 * in concat mode. Update from real disk size.
594 if (meta->type == SII_T_CONCAT || meta->type == SII_T_JBOD)
595 sd->sd_size = pd->pd_disk_size - 0x800 * 512;
598 /* New or ex-spare disk. */
599 g_raid_change_subdisk_state(sd,
600 G_RAID_SUBDISK_S_NEW);
601 } else if (pd->pd_meta->disk_status == SII_S_REBUILD) {
602 /* Rebuilding disk. */
603 g_raid_change_subdisk_state(sd,
604 G_RAID_SUBDISK_S_REBUILD);
605 if (pd->pd_meta->generation == meta->generation)
606 sd->sd_rebuild_pos = pd->pd_meta->rebuild_lba * 512;
608 sd->sd_rebuild_pos = 0;
609 } else if (pd->pd_meta->disk_status == SII_S_CURRENT) {
610 if (pd->pd_meta->raid_status == SII_S_ONLINE ||
611 pd->pd_meta->generation != meta->generation) {
612 /* Dirty or resyncing disk. */
613 g_raid_change_subdisk_state(sd,
614 G_RAID_SUBDISK_S_STALE);
616 /* Up to date disk. */
617 g_raid_change_subdisk_state(sd,
618 G_RAID_SUBDISK_S_ACTIVE);
621 g_raid_change_subdisk_state(sd,
622 G_RAID_SUBDISK_S_FAILED);
624 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW,
625 G_RAID_EVENT_SUBDISK);
628 /* Update status of our need for spare. */
629 if (mdi->mdio_started) {
630 mdi->mdio_incomplete =
631 (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) <
632 mdi->mdio_total_disks);
635 return (resurrection);
639 g_disk_md_sii_retaste(void *arg, int pending)
642 G_RAID_DEBUG(1, "Array is not complete, trying to retaste.");
643 g_retaste(&g_raid_class);
648 g_raid_md_sii_refill(struct g_raid_softc *sc)
650 struct g_raid_md_object *md;
651 struct g_raid_md_sii_object *mdi;
652 struct g_raid_disk *disk;
657 mdi = (struct g_raid_md_sii_object *)md;
660 /* Make sure we miss anything. */
661 na = g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE);
662 if (na == mdi->mdio_total_disks)
665 G_RAID_DEBUG1(1, md->mdo_softc,
666 "Array is not complete (%d of %d), "
667 "trying to refill.", na, mdi->mdio_total_disks);
669 /* Try to get use some of STALE disks. */
670 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
671 if (disk->d_state == G_RAID_DISK_S_STALE) {
672 update += g_raid_md_sii_start_disk(disk);
673 if (disk->d_state == G_RAID_DISK_S_ACTIVE)
680 /* Try to get use some of SPARE disks. */
681 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
682 if (disk->d_state == G_RAID_DISK_S_SPARE) {
683 update += g_raid_md_sii_start_disk(disk);
684 if (disk->d_state == G_RAID_DISK_S_ACTIVE)
688 } while (disk != NULL);
690 /* Write new metadata if we changed something. */
692 g_raid_md_write_sii(md, NULL, NULL, NULL);
694 /* Update status of our need for spare. */
695 mdi->mdio_incomplete = (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) <
696 mdi->mdio_total_disks);
698 /* Request retaste hoping to find spare. */
699 if (mdi->mdio_incomplete) {
700 task = malloc(sizeof(struct task),
701 M_MD_SII, M_WAITOK | M_ZERO);
702 TASK_INIT(task, 0, g_disk_md_sii_retaste, task);
703 taskqueue_enqueue(taskqueue_swi, task);
708 g_raid_md_sii_start(struct g_raid_softc *sc)
710 struct g_raid_md_object *md;
711 struct g_raid_md_sii_object *mdi;
712 struct g_raid_md_sii_perdisk *pd;
713 struct sii_raid_conf *meta;
714 struct g_raid_volume *vol;
715 struct g_raid_subdisk *sd;
716 struct g_raid_disk *disk, *best;
719 uint32_t gendiff, bestgendiff;
723 mdi = (struct g_raid_md_sii_object *)md;
724 meta = mdi->mdio_meta;
726 /* Create volumes and subdisks. */
727 sii_meta_get_name(meta, buf);
728 vol = g_raid_create_volume(sc, buf, -1);
729 vol->v_mediasize = (off_t)meta->total_sectors * 512;
730 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_NONE;
731 if (meta->type == SII_T_RAID0) {
732 vol->v_raid_level = G_RAID_VOLUME_RL_RAID0;
733 size = vol->v_mediasize / mdi->mdio_total_disks;
734 } else if (meta->type == SII_T_RAID1) {
735 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1;
736 size = vol->v_mediasize;
737 } else if (meta->type == SII_T_RAID01) {
738 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1E;
739 size = vol->v_mediasize / (mdi->mdio_total_disks / 2);
740 } else if (meta->type == SII_T_CONCAT) {
741 if (mdi->mdio_total_disks == 1)
742 vol->v_raid_level = G_RAID_VOLUME_RL_SINGLE;
744 vol->v_raid_level = G_RAID_VOLUME_RL_CONCAT;
746 } else if (meta->type == SII_T_RAID5) {
747 vol->v_raid_level = G_RAID_VOLUME_RL_RAID5;
748 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_R5LS;
749 size = vol->v_mediasize / (mdi->mdio_total_disks - 1);
750 } else if (meta->type == SII_T_JBOD) {
751 vol->v_raid_level = G_RAID_VOLUME_RL_SINGLE;
754 vol->v_raid_level = G_RAID_VOLUME_RL_UNKNOWN;
757 vol->v_strip_size = meta->strip_sectors * 512; //ZZZ
758 vol->v_disks_count = mdi->mdio_total_disks;
759 vol->v_sectorsize = 512; //ZZZ
760 for (j = 0; j < vol->v_disks_count; j++) {
761 sd = &vol->v_subdisks[j];
765 g_raid_start_volume(vol);
767 /* Create disk placeholders to store data for later writing. */
768 for (disk_pos = 0; disk_pos < mdi->mdio_total_disks; disk_pos++) {
769 pd = malloc(sizeof(*pd), M_MD_SII, M_WAITOK | M_ZERO);
770 pd->pd_disk_pos = disk_pos;
771 disk = g_raid_create_disk(sc);
772 disk->d_md_data = (void *)pd;
773 disk->d_state = G_RAID_DISK_S_OFFLINE;
774 sd = &vol->v_subdisks[disk_pos];
776 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next);
780 * Make all disks found till the moment take their places
781 * in order of their generation numbers.
785 bestgendiff = 0xffffffff;
786 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
787 if (disk->d_state != G_RAID_DISK_S_NONE)
789 pd = disk->d_md_data;
790 if (pd->pd_meta == NULL)
791 gendiff = 0xfffffffe;
793 gendiff = meta->generation -
794 pd->pd_meta->generation;
795 if (gendiff < bestgendiff) {
797 bestgendiff = gendiff;
801 g_raid_md_sii_start_disk(best);
802 } while (best != NULL);
804 mdi->mdio_started = 1;
805 G_RAID_DEBUG1(0, sc, "Array started.");
806 g_raid_md_write_sii(md, NULL, NULL, NULL);
808 /* Pickup any STALE/SPARE disks to refill array if needed. */
809 g_raid_md_sii_refill(sc);
811 g_raid_event_send(vol, G_RAID_VOLUME_E_START, G_RAID_EVENT_VOLUME);
813 callout_stop(&mdi->mdio_start_co);
814 G_RAID_DEBUG1(1, sc, "root_mount_rel %p", mdi->mdio_rootmount);
815 root_mount_rel(mdi->mdio_rootmount);
816 mdi->mdio_rootmount = NULL;
820 g_raid_md_sii_new_disk(struct g_raid_disk *disk)
822 struct g_raid_softc *sc;
823 struct g_raid_md_object *md;
824 struct g_raid_md_sii_object *mdi;
825 struct sii_raid_conf *pdmeta;
826 struct g_raid_md_sii_perdisk *pd;
830 mdi = (struct g_raid_md_sii_object *)md;
831 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
832 pdmeta = pd->pd_meta;
834 if (mdi->mdio_started) {
835 if (g_raid_md_sii_start_disk(disk))
836 g_raid_md_write_sii(md, NULL, NULL, NULL);
838 if (mdi->mdio_meta == NULL ||
839 ((int32_t)(pdmeta->generation - mdi->mdio_generation)) > 0) {
840 G_RAID_DEBUG1(1, sc, "Newer disk");
841 if (mdi->mdio_meta != NULL)
842 free(mdi->mdio_meta, M_MD_SII);
843 mdi->mdio_meta = sii_meta_copy(pdmeta);
844 mdi->mdio_generation = mdi->mdio_meta->generation;
845 mdi->mdio_total_disks = sii_meta_total_disks(pdmeta);
846 mdi->mdio_disks_present = 1;
847 } else if (pdmeta->generation == mdi->mdio_generation) {
848 mdi->mdio_disks_present++;
849 G_RAID_DEBUG1(1, sc, "Matching disk (%d of %d up)",
850 mdi->mdio_disks_present,
851 mdi->mdio_total_disks);
853 G_RAID_DEBUG1(1, sc, "Older disk");
856 /* If we collected all needed disks - start array. */
857 if (mdi->mdio_disks_present == mdi->mdio_total_disks)
858 g_raid_md_sii_start(sc);
863 g_raid_sii_go(void *arg)
865 struct g_raid_softc *sc;
866 struct g_raid_md_object *md;
867 struct g_raid_md_sii_object *mdi;
871 mdi = (struct g_raid_md_sii_object *)md;
872 if (!mdi->mdio_started) {
873 G_RAID_DEBUG1(0, sc, "Force array start due to timeout.");
874 g_raid_event_send(sc, G_RAID_NODE_E_START, 0);
879 g_raid_md_create_sii(struct g_raid_md_object *md, struct g_class *mp,
882 struct g_raid_softc *sc;
883 struct g_raid_md_sii_object *mdi;
886 mdi = (struct g_raid_md_sii_object *)md;
887 mdi->mdio_timestamp[5] = arc4random();
888 mdi->mdio_timestamp[4] = arc4random();
889 mdi->mdio_timestamp[3] = arc4random();
890 mdi->mdio_timestamp[2] = arc4random();
891 mdi->mdio_timestamp[1] = arc4random();
892 mdi->mdio_timestamp[0] = arc4random();
893 mdi->mdio_location = arc4random();
894 mdi->mdio_generation = 0;
895 snprintf(name, sizeof(name), "SiI-%02x%02x%02x%02x%02x%02x",
896 mdi->mdio_timestamp[5], mdi->mdio_timestamp[4],
897 mdi->mdio_timestamp[3], mdi->mdio_timestamp[2],
898 mdi->mdio_timestamp[1], mdi->mdio_timestamp[0]);
899 sc = g_raid_create_node(mp, name, md);
901 return (G_RAID_MD_TASTE_FAIL);
904 return (G_RAID_MD_TASTE_NEW);
908 g_raid_md_taste_sii(struct g_raid_md_object *md, struct g_class *mp,
909 struct g_consumer *cp, struct g_geom **gp)
911 struct g_consumer *rcp;
912 struct g_provider *pp;
913 struct g_raid_md_sii_object *mdi, *mdi1;
914 struct g_raid_softc *sc;
915 struct g_raid_disk *disk;
916 struct sii_raid_conf *meta;
917 struct g_raid_md_sii_perdisk *pd;
919 int disk_pos, result, spare, len;
923 G_RAID_DEBUG(1, "Tasting SiI on %s", cp->provider->name);
924 mdi = (struct g_raid_md_sii_object *)md;
927 /* Read metadata from device. */
931 len = sizeof(vendor);
932 if (pp->geom->rank == 1)
933 g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor);
934 meta = sii_meta_read(cp);
937 if (g_raid_aggressive_spare) {
938 if (vendor == 0x1095) {
940 "No SiI metadata, forcing spare.");
945 "SiI vendor mismatch 0x%04x != 0x1095",
949 return (G_RAID_MD_TASTE_FAIL);
952 /* Check this disk position in obtained metadata. */
953 disk_pos = sii_meta_disk_pos(meta, meta);
954 if (disk_pos == -1) {
955 G_RAID_DEBUG(1, "SiI disk position not found");
959 /* Metadata valid. Print it. */
960 g_raid_md_sii_print(meta);
961 G_RAID_DEBUG(1, "SiI disk position %d", disk_pos);
962 spare = (meta->type == SII_T_SPARE) ? 1 : 0;
965 /* Search for matching node. */
968 LIST_FOREACH(geom, &mp->geom, geom) {
972 if (sc->sc_stopping != 0)
974 if (sc->sc_md->mdo_class != md->mdo_class)
976 mdi1 = (struct g_raid_md_sii_object *)sc->sc_md;
978 if (mdi1->mdio_incomplete)
981 if (mdi1->mdio_location == meta->raid_location &&
982 memcmp(&mdi1->mdio_timestamp,
983 &meta->timestamp, 6) == 0)
988 /* Found matching node. */
990 G_RAID_DEBUG(1, "Found matching array %s", sc->sc_name);
991 result = G_RAID_MD_TASTE_EXISTING;
993 } else if (spare) { /* Not found needy node -- left for later. */
994 G_RAID_DEBUG(1, "Spare is not needed at this time");
997 } else { /* Not found matching node -- create one. */
998 result = G_RAID_MD_TASTE_NEW;
999 memcpy(&mdi->mdio_timestamp, &meta->timestamp, 6);
1000 mdi->mdio_location = meta->raid_location;
1001 snprintf(name, sizeof(name), "SiI-%02x%02x%02x%02x%02x%02x",
1002 mdi->mdio_timestamp[5], mdi->mdio_timestamp[4],
1003 mdi->mdio_timestamp[3], mdi->mdio_timestamp[2],
1004 mdi->mdio_timestamp[1], mdi->mdio_timestamp[0]);
1005 sc = g_raid_create_node(mp, name, md);
1008 callout_init(&mdi->mdio_start_co, 1);
1009 callout_reset(&mdi->mdio_start_co, g_raid_start_timeout * hz,
1011 mdi->mdio_rootmount = root_mount_hold("GRAID-SiI");
1012 G_RAID_DEBUG1(1, sc, "root_mount_hold %p", mdi->mdio_rootmount);
1015 /* There is no return after this point, so we close passed consumer. */
1016 g_access(cp, -1, 0, 0);
1018 rcp = g_new_consumer(geom);
1019 rcp->flags |= G_CF_DIRECT_RECEIVE;
1021 if (g_access(rcp, 1, 1, 1) != 0)
1024 g_topology_unlock();
1025 sx_xlock(&sc->sc_lock);
1027 pd = malloc(sizeof(*pd), M_MD_SII, M_WAITOK | M_ZERO);
1030 pd->pd_disk_pos = -3;
1032 pd->pd_disk_pos = -1;
1034 pd->pd_disk_size = pp->mediasize;
1035 disk = g_raid_create_disk(sc);
1036 disk->d_md_data = (void *)pd;
1037 disk->d_consumer = rcp;
1038 rcp->private = disk;
1040 g_raid_get_disk_info(disk);
1042 g_raid_md_sii_new_disk(disk);
1044 sx_xunlock(&sc->sc_lock);
1049 free(meta, M_MD_SII);
1050 return (G_RAID_MD_TASTE_FAIL);
1054 g_raid_md_event_sii(struct g_raid_md_object *md,
1055 struct g_raid_disk *disk, u_int event)
1057 struct g_raid_softc *sc;
1058 struct g_raid_subdisk *sd;
1059 struct g_raid_md_sii_object *mdi;
1060 struct g_raid_md_sii_perdisk *pd;
1063 mdi = (struct g_raid_md_sii_object *)md;
1066 case G_RAID_NODE_E_START:
1067 if (!mdi->mdio_started)
1068 g_raid_md_sii_start(sc);
1073 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
1075 case G_RAID_DISK_E_DISCONNECTED:
1076 /* If disk was assigned, just update statuses. */
1077 if (pd->pd_disk_pos >= 0) {
1078 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE);
1079 if (disk->d_consumer) {
1080 g_raid_kill_consumer(sc, disk->d_consumer);
1081 disk->d_consumer = NULL;
1083 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) {
1084 g_raid_change_subdisk_state(sd,
1085 G_RAID_SUBDISK_S_NONE);
1086 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED,
1087 G_RAID_EVENT_SUBDISK);
1090 /* Otherwise -- delete. */
1091 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE);
1092 g_raid_destroy_disk(disk);
1095 /* Write updated metadata to all disks. */
1096 g_raid_md_write_sii(md, NULL, NULL, NULL);
1098 /* Check if anything left except placeholders. */
1099 if (g_raid_ndisks(sc, -1) ==
1100 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE))
1101 g_raid_destroy_node(sc, 0);
1103 g_raid_md_sii_refill(sc);
1110 g_raid_md_ctl_sii(struct g_raid_md_object *md,
1111 struct gctl_req *req)
1113 struct g_raid_softc *sc;
1114 struct g_raid_volume *vol;
1115 struct g_raid_subdisk *sd;
1116 struct g_raid_disk *disk;
1117 struct g_raid_md_sii_object *mdi;
1118 struct g_raid_md_sii_perdisk *pd;
1119 struct g_consumer *cp;
1120 struct g_provider *pp;
1122 const char *verb, *volname, *levelname, *diskname;
1124 off_t size, sectorsize, strip;
1125 intmax_t *sizearg, *striparg;
1126 int numdisks, i, len, level, qual, update;
1130 mdi = (struct g_raid_md_sii_object *)md;
1131 verb = gctl_get_param(req, "verb", NULL);
1132 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
1134 if (strcmp(verb, "label") == 0) {
1137 gctl_error(req, "Invalid number of arguments.");
1140 volname = gctl_get_asciiparam(req, "arg1");
1141 if (volname == NULL) {
1142 gctl_error(req, "No volume name.");
1145 levelname = gctl_get_asciiparam(req, "arg2");
1146 if (levelname == NULL) {
1147 gctl_error(req, "No RAID level.");
1150 if (strcasecmp(levelname, "RAID5") == 0)
1151 levelname = "RAID5-LS";
1152 if (g_raid_volume_str2level(levelname, &level, &qual)) {
1153 gctl_error(req, "Unknown RAID level '%s'.", levelname);
1156 numdisks = *nargs - 3;
1157 force = gctl_get_paraml(req, "force", sizeof(*force));
1158 if (!g_raid_md_sii_supported(level, qual, numdisks,
1159 force ? *force : 0)) {
1160 gctl_error(req, "Unsupported RAID level "
1161 "(0x%02x/0x%02x), or number of disks (%d).",
1162 level, qual, numdisks);
1166 /* Search for disks, connect them and probe. */
1167 size = 0x7fffffffffffffffllu;
1169 for (i = 0; i < numdisks; i++) {
1170 snprintf(arg, sizeof(arg), "arg%d", i + 3);
1171 diskname = gctl_get_asciiparam(req, arg);
1172 if (diskname == NULL) {
1173 gctl_error(req, "No disk name (%s).", arg);
1177 if (strcmp(diskname, "NONE") == 0) {
1182 cp = g_raid_open_consumer(sc, diskname);
1184 gctl_error(req, "Can't open '%s'.",
1186 g_topology_unlock();
1192 pd = malloc(sizeof(*pd), M_MD_SII, M_WAITOK | M_ZERO);
1193 pd->pd_disk_pos = i;
1194 disk = g_raid_create_disk(sc);
1195 disk->d_md_data = (void *)pd;
1196 disk->d_consumer = cp;
1200 g_topology_unlock();
1202 g_raid_get_disk_info(disk);
1204 pd->pd_disk_size = pp->mediasize;
1205 if (size > pp->mediasize)
1206 size = pp->mediasize;
1207 if (sectorsize < pp->sectorsize)
1208 sectorsize = pp->sectorsize;
1213 if (sectorsize <= 0) {
1214 gctl_error(req, "Can't get sector size.");
1218 /* Reserve space for metadata. */
1219 size -= 0x800 * sectorsize;
1221 /* Handle size argument. */
1222 len = sizeof(*sizearg);
1223 sizearg = gctl_get_param(req, "size", &len);
1224 if (sizearg != NULL && len == sizeof(*sizearg) &&
1226 if (*sizearg > size) {
1227 gctl_error(req, "Size too big %lld > %lld.",
1228 (long long)*sizearg, (long long)size);
1234 /* Handle strip argument. */
1236 len = sizeof(*striparg);
1237 striparg = gctl_get_param(req, "strip", &len);
1238 if (striparg != NULL && len == sizeof(*striparg) &&
1240 if (*striparg < sectorsize) {
1241 gctl_error(req, "Strip size too small.");
1244 if (*striparg % sectorsize != 0) {
1245 gctl_error(req, "Incorrect strip size.");
1248 if (strip > 65535 * sectorsize) {
1249 gctl_error(req, "Strip size too big.");
1255 /* Round size down to strip or sector. */
1256 if (level == G_RAID_VOLUME_RL_RAID1)
1257 size -= (size % sectorsize);
1258 else if (level == G_RAID_VOLUME_RL_RAID1E &&
1259 (numdisks & 1) != 0)
1260 size -= (size % (2 * strip));
1262 size -= (size % strip);
1264 gctl_error(req, "Size too small.");
1267 if (size > 0xffffffffffffllu * sectorsize) {
1268 gctl_error(req, "Size too big.");
1272 /* We have all we need, create things: volume, ... */
1273 mdi->mdio_total_disks = numdisks;
1274 mdi->mdio_started = 1;
1275 vol = g_raid_create_volume(sc, volname, -1);
1276 vol->v_md_data = (void *)(intptr_t)0;
1277 vol->v_raid_level = level;
1278 vol->v_raid_level_qualifier = qual;
1279 vol->v_strip_size = strip;
1280 vol->v_disks_count = numdisks;
1281 if (level == G_RAID_VOLUME_RL_RAID0 ||
1282 level == G_RAID_VOLUME_RL_CONCAT ||
1283 level == G_RAID_VOLUME_RL_SINGLE)
1284 vol->v_mediasize = size * numdisks;
1285 else if (level == G_RAID_VOLUME_RL_RAID1)
1286 vol->v_mediasize = size;
1287 else if (level == G_RAID_VOLUME_RL_RAID5)
1288 vol->v_mediasize = size * (numdisks - 1);
1290 vol->v_mediasize = ((size * numdisks) / strip / 2) *
1293 vol->v_sectorsize = sectorsize;
1294 g_raid_start_volume(vol);
1296 /* , and subdisks. */
1297 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1298 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
1299 sd = &vol->v_subdisks[pd->pd_disk_pos];
1303 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next);
1304 if (sd->sd_disk->d_consumer != NULL) {
1305 g_raid_change_disk_state(disk,
1306 G_RAID_DISK_S_ACTIVE);
1307 g_raid_change_subdisk_state(sd,
1308 G_RAID_SUBDISK_S_ACTIVE);
1309 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW,
1310 G_RAID_EVENT_SUBDISK);
1312 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE);
1316 /* Write metadata based on created entities. */
1317 G_RAID_DEBUG1(0, sc, "Array started.");
1318 g_raid_md_write_sii(md, NULL, NULL, NULL);
1320 /* Pickup any STALE/SPARE disks to refill array if needed. */
1321 g_raid_md_sii_refill(sc);
1323 g_raid_event_send(vol, G_RAID_VOLUME_E_START,
1324 G_RAID_EVENT_VOLUME);
1327 if (strcmp(verb, "delete") == 0) {
1329 /* Check if some volume is still open. */
1330 force = gctl_get_paraml(req, "force", sizeof(*force));
1331 if (force != NULL && *force == 0 &&
1332 g_raid_nopens(sc) != 0) {
1333 gctl_error(req, "Some volume is still open.");
1337 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1338 if (disk->d_consumer)
1339 sii_meta_erase(disk->d_consumer);
1341 g_raid_destroy_node(sc, 0);
1344 if (strcmp(verb, "remove") == 0 ||
1345 strcmp(verb, "fail") == 0) {
1347 gctl_error(req, "Invalid number of arguments.");
1350 for (i = 1; i < *nargs; i++) {
1351 snprintf(arg, sizeof(arg), "arg%d", i);
1352 diskname = gctl_get_asciiparam(req, arg);
1353 if (diskname == NULL) {
1354 gctl_error(req, "No disk name (%s).", arg);
1358 if (strncmp(diskname, "/dev/", 5) == 0)
1361 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1362 if (disk->d_consumer != NULL &&
1363 disk->d_consumer->provider != NULL &&
1364 strcmp(disk->d_consumer->provider->name,
1369 gctl_error(req, "Disk '%s' not found.",
1375 if (strcmp(verb, "fail") == 0) {
1376 g_raid_md_fail_disk_sii(md, NULL, disk);
1380 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
1382 /* Erase metadata on deleting disk. */
1383 sii_meta_erase(disk->d_consumer);
1385 /* If disk was assigned, just update statuses. */
1386 if (pd->pd_disk_pos >= 0) {
1387 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE);
1388 g_raid_kill_consumer(sc, disk->d_consumer);
1389 disk->d_consumer = NULL;
1390 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) {
1391 g_raid_change_subdisk_state(sd,
1392 G_RAID_SUBDISK_S_NONE);
1393 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED,
1394 G_RAID_EVENT_SUBDISK);
1397 /* Otherwise -- delete. */
1398 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE);
1399 g_raid_destroy_disk(disk);
1403 /* Write updated metadata to remaining disks. */
1404 g_raid_md_write_sii(md, NULL, NULL, NULL);
1406 /* Check if anything left except placeholders. */
1407 if (g_raid_ndisks(sc, -1) ==
1408 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE))
1409 g_raid_destroy_node(sc, 0);
1411 g_raid_md_sii_refill(sc);
1414 if (strcmp(verb, "insert") == 0) {
1416 gctl_error(req, "Invalid number of arguments.");
1420 for (i = 1; i < *nargs; i++) {
1421 /* Get disk name. */
1422 snprintf(arg, sizeof(arg), "arg%d", i);
1423 diskname = gctl_get_asciiparam(req, arg);
1424 if (diskname == NULL) {
1425 gctl_error(req, "No disk name (%s).", arg);
1430 /* Try to find provider with specified name. */
1432 cp = g_raid_open_consumer(sc, diskname);
1434 gctl_error(req, "Can't open disk '%s'.",
1436 g_topology_unlock();
1442 pd = malloc(sizeof(*pd), M_MD_SII, M_WAITOK | M_ZERO);
1443 pd->pd_disk_pos = -3;
1444 pd->pd_disk_size = pp->mediasize;
1446 disk = g_raid_create_disk(sc);
1447 disk->d_consumer = cp;
1448 disk->d_md_data = (void *)pd;
1450 g_topology_unlock();
1452 g_raid_get_disk_info(disk);
1454 /* Welcome the "new" disk. */
1455 update += g_raid_md_sii_start_disk(disk);
1456 if (disk->d_state == G_RAID_DISK_S_SPARE) {
1457 sii_meta_write_spare(cp);
1458 g_raid_destroy_disk(disk);
1459 } else if (disk->d_state != G_RAID_DISK_S_ACTIVE) {
1460 gctl_error(req, "Disk '%s' doesn't fit.",
1462 g_raid_destroy_disk(disk);
1468 /* Write new metadata if we changed something. */
1470 g_raid_md_write_sii(md, NULL, NULL, NULL);
1473 gctl_error(req, "Command '%s' is not supported.", verb);
1478 g_raid_md_write_sii(struct g_raid_md_object *md, struct g_raid_volume *tvol,
1479 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk)
1481 struct g_raid_softc *sc;
1482 struct g_raid_volume *vol;
1483 struct g_raid_subdisk *sd;
1484 struct g_raid_disk *disk;
1485 struct g_raid_md_sii_object *mdi;
1486 struct g_raid_md_sii_perdisk *pd;
1487 struct sii_raid_conf *meta;
1491 mdi = (struct g_raid_md_sii_object *)md;
1493 if (sc->sc_stopping == G_RAID_DESTROY_HARD)
1496 /* Bump generation. Newly written metadata may differ from previous. */
1497 mdi->mdio_generation++;
1499 /* There is only one volume. */
1500 vol = TAILQ_FIRST(&sc->sc_volumes);
1502 /* Fill global fields. */
1503 meta = malloc(sizeof(*meta), M_MD_SII, M_WAITOK | M_ZERO);
1505 memcpy(meta, mdi->mdio_meta, sizeof(*meta));
1506 meta->total_sectors = vol->v_mediasize / vol->v_sectorsize;
1507 meta->vendor_id = 0x1095;
1508 meta->version_minor = 0;
1509 meta->version_major = 2;
1510 memcpy(&meta->timestamp, &mdi->mdio_timestamp, 6);
1511 meta->strip_sectors = vol->v_strip_size / vol->v_sectorsize;
1512 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID0) {
1513 meta->type = SII_T_RAID0;
1514 meta->raid0_disks = vol->v_disks_count;
1515 meta->raid1_disks = 0xff;
1516 } else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) {
1517 meta->type = SII_T_RAID1;
1518 meta->raid0_disks = 0xff;
1519 meta->raid1_disks = vol->v_disks_count;
1520 } else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) {
1521 meta->type = SII_T_RAID01;
1522 meta->raid0_disks = vol->v_disks_count / 2;
1523 meta->raid1_disks = 2;
1524 } else if (vol->v_raid_level == G_RAID_VOLUME_RL_CONCAT ||
1525 vol->v_raid_level == G_RAID_VOLUME_RL_SINGLE) {
1526 meta->type = SII_T_JBOD;
1527 meta->raid0_disks = vol->v_disks_count;
1528 meta->raid1_disks = 0xff;
1530 meta->type = SII_T_RAID5;
1531 meta->raid0_disks = vol->v_disks_count;
1532 meta->raid1_disks = 0xff;
1534 meta->generation = mdi->mdio_generation;
1535 meta->raid_status = vol->v_dirty ? SII_S_ONLINE : SII_S_AVAILABLE;
1536 for (i = 0; i < vol->v_disks_count; i++) {
1537 sd = &vol->v_subdisks[i];
1538 if (sd->sd_state == G_RAID_SUBDISK_S_STALE ||
1539 sd->sd_state == G_RAID_SUBDISK_S_RESYNC)
1540 meta->raid_status = SII_S_ONLINE;
1542 meta->raid_location = mdi->mdio_location;
1543 sii_meta_put_name(meta, vol->v_name);
1545 /* We are done. Print meta data and store them to disks. */
1546 if (mdi->mdio_meta != NULL)
1547 free(mdi->mdio_meta, M_MD_SII);
1548 mdi->mdio_meta = meta;
1549 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1550 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
1551 if (disk->d_state != G_RAID_DISK_S_ACTIVE)
1553 if (pd->pd_meta != NULL) {
1554 free(pd->pd_meta, M_MD_SII);
1557 pd->pd_meta = sii_meta_copy(meta);
1558 if ((sd = TAILQ_FIRST(&disk->d_subdisks)) != NULL) {
1559 if (sd->sd_state < G_RAID_SUBDISK_S_NEW)
1560 pd->pd_meta->disk_status = SII_S_DROPPED;
1561 else if (sd->sd_state < G_RAID_SUBDISK_S_STALE) {
1562 pd->pd_meta->disk_status = SII_S_REBUILD;
1563 pd->pd_meta->rebuild_lba =
1564 sd->sd_rebuild_pos / vol->v_sectorsize;
1566 pd->pd_meta->disk_status = SII_S_CURRENT;
1567 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) {
1568 pd->pd_meta->disk_number = sd->sd_pos;
1569 pd->pd_meta->raid0_ident = 0xff;
1570 pd->pd_meta->raid1_ident = 0;
1571 } else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) {
1572 pd->pd_meta->disk_number = sd->sd_pos / meta->raid1_disks;
1573 pd->pd_meta->raid0_ident = sd->sd_pos % meta->raid1_disks;
1574 pd->pd_meta->raid1_ident = sd->sd_pos / meta->raid1_disks;
1576 pd->pd_meta->disk_number = sd->sd_pos;
1577 pd->pd_meta->raid0_ident = 0;
1578 pd->pd_meta->raid1_ident = 0xff;
1581 G_RAID_DEBUG(1, "Writing SiI metadata to %s",
1582 g_raid_get_diskname(disk));
1583 g_raid_md_sii_print(pd->pd_meta);
1584 sii_meta_write(disk->d_consumer, pd->pd_meta);
1590 g_raid_md_fail_disk_sii(struct g_raid_md_object *md,
1591 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk)
1593 struct g_raid_softc *sc;
1594 struct g_raid_md_sii_perdisk *pd;
1595 struct g_raid_subdisk *sd;
1598 pd = (struct g_raid_md_sii_perdisk *)tdisk->d_md_data;
1600 /* We can't fail disk that is not a part of array now. */
1601 if (pd->pd_disk_pos < 0)
1605 * Mark disk as failed in metadata and try to write that metadata
1606 * to the disk itself to prevent it's later resurrection as STALE.
1608 if (tdisk->d_consumer) {
1610 pd->pd_meta->disk_status = SII_S_REMOVED;
1611 sii_meta_write(tdisk->d_consumer, pd->pd_meta);
1613 sii_meta_erase(tdisk->d_consumer);
1616 /* Change states. */
1617 g_raid_change_disk_state(tdisk, G_RAID_DISK_S_FAILED);
1618 TAILQ_FOREACH(sd, &tdisk->d_subdisks, sd_next) {
1619 g_raid_change_subdisk_state(sd,
1620 G_RAID_SUBDISK_S_FAILED);
1621 g_raid_event_send(sd, G_RAID_SUBDISK_E_FAILED,
1622 G_RAID_EVENT_SUBDISK);
1625 /* Write updated metadata to remaining disks. */
1626 g_raid_md_write_sii(md, NULL, NULL, tdisk);
1628 /* Check if anything left except placeholders. */
1629 if (g_raid_ndisks(sc, -1) ==
1630 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE))
1631 g_raid_destroy_node(sc, 0);
1633 g_raid_md_sii_refill(sc);
1638 g_raid_md_free_disk_sii(struct g_raid_md_object *md,
1639 struct g_raid_disk *disk)
1641 struct g_raid_md_sii_perdisk *pd;
1643 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
1644 if (pd->pd_meta != NULL) {
1645 free(pd->pd_meta, M_MD_SII);
1649 disk->d_md_data = NULL;
1654 g_raid_md_free_sii(struct g_raid_md_object *md)
1656 struct g_raid_md_sii_object *mdi;
1658 mdi = (struct g_raid_md_sii_object *)md;
1659 if (!mdi->mdio_started) {
1660 mdi->mdio_started = 0;
1661 callout_stop(&mdi->mdio_start_co);
1662 G_RAID_DEBUG1(1, md->mdo_softc,
1663 "root_mount_rel %p", mdi->mdio_rootmount);
1664 root_mount_rel(mdi->mdio_rootmount);
1665 mdi->mdio_rootmount = NULL;
1667 if (mdi->mdio_meta != NULL) {
1668 free(mdi->mdio_meta, M_MD_SII);
1669 mdi->mdio_meta = NULL;
1674 G_RAID_MD_DECLARE(sii, "SiI");