2 * Copyright (c) 2011 Alexander Motin <mav@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/param.h>
32 #include <sys/endian.h>
33 #include <sys/kernel.h>
35 #include <sys/limits.h>
37 #include <sys/malloc.h>
38 #include <sys/mutex.h>
39 #include <sys/systm.h>
40 #include <geom/geom.h>
41 #include "geom/raid/g_raid.h"
42 #include "g_raid_md_if.h"
44 static MALLOC_DEFINE(M_MD_PROMISE, "md_promise_data", "GEOM_RAID Promise metadata");
46 #define PROMISE_MAX_DISKS 8
47 #define PROMISE_MAX_SUBDISKS 2
48 #define PROMISE_META_OFFSET 14
50 struct promise_raid_disk {
51 uint8_t flags; /* Subdisk status. */
52 #define PROMISE_F_VALID 0x01
53 #define PROMISE_F_ONLINE 0x02
54 #define PROMISE_F_ASSIGNED 0x04
55 #define PROMISE_F_SPARE 0x08
56 #define PROMISE_F_DUPLICATE 0x10
57 #define PROMISE_F_REDIR 0x20
58 #define PROMISE_F_DOWN 0x40
59 #define PROMISE_F_READY 0x80
61 uint8_t number; /* Position in a volume. */
62 uint8_t channel; /* ATA channel number. */
63 uint8_t device; /* ATA device number. */
64 uint64_t id __packed; /* Subdisk ID. */
67 struct promise_raid_conf {
69 #define PROMISE_MAGIC "Promise Technology, Inc."
70 #define FREEBSD_MAGIC "FreeBSD ATA driver RAID "
74 #define PROMISE_MAGIC0(x) (((uint64_t)(x.channel) << 48) | \
75 ((uint64_t)(x.device != 0) << 56))
81 #define PROMISE_I_VALID 0x00000080
83 struct promise_raid_disk disk; /* This subdisk info. */
84 uint32_t disk_offset; /* Subdisk offset. */
85 uint32_t disk_sectors; /* Subdisk size */
86 uint32_t rebuild_lba; /* Rebuild position. */
87 uint16_t generation; /* Generation number. */
88 uint8_t status; /* Volume status. */
89 #define PROMISE_S_VALID 0x01
90 #define PROMISE_S_ONLINE 0x02
91 #define PROMISE_S_INITED 0x04
92 #define PROMISE_S_READY 0x08
93 #define PROMISE_S_DEGRADED 0x10
94 #define PROMISE_S_MARKED 0x20
95 #define PROMISE_S_MIGRATING 0x40
96 #define PROMISE_S_FUNCTIONAL 0x80
98 uint8_t type; /* Voluem type. */
99 #define PROMISE_T_RAID0 0x00
100 #define PROMISE_T_RAID1 0x01
101 #define PROMISE_T_RAID3 0x02
102 #define PROMISE_T_RAID5 0x04
103 #define PROMISE_T_SPAN 0x08
104 #define PROMISE_T_JBOD 0x10
106 uint8_t total_disks; /* Disks in this volume. */
107 uint8_t stripe_shift; /* Strip size. */
108 uint8_t array_width; /* Number of RAID0 stripes. */
109 uint8_t array_number; /* Global volume number. */
110 uint32_t total_sectors; /* Volume size. */
111 uint16_t cylinders; /* Volume geometry: C. */
112 uint8_t heads; /* Volume geometry: H. */
113 uint8_t sectors; /* Volume geometry: S. */
114 uint64_t volume_id __packed; /* Volume ID, */
115 struct promise_raid_disk disks[PROMISE_MAX_DISKS];
116 /* Subdisks in this volume. */
117 char name[32]; /* Volume label. */
120 uint32_t magic_3; /* Something related to rebuild. */
121 uint64_t rebuild_lba64; /* Per-volume rebuild position. */
124 uint32_t filler3[325];
128 struct g_raid_md_promise_perdisk {
131 struct promise_raid_conf *pd_meta[PROMISE_MAX_SUBDISKS];
134 struct g_raid_md_promise_pervolume {
135 struct promise_raid_conf *pv_meta;
137 uint16_t pv_generation;
138 int pv_disks_present;
140 struct callout pv_start_co; /* STARTING state timer. */
143 static g_raid_md_create_t g_raid_md_create_promise;
144 static g_raid_md_taste_t g_raid_md_taste_promise;
145 static g_raid_md_event_t g_raid_md_event_promise;
146 static g_raid_md_volume_event_t g_raid_md_volume_event_promise;
147 static g_raid_md_ctl_t g_raid_md_ctl_promise;
148 static g_raid_md_write_t g_raid_md_write_promise;
149 static g_raid_md_fail_disk_t g_raid_md_fail_disk_promise;
150 static g_raid_md_free_disk_t g_raid_md_free_disk_promise;
151 static g_raid_md_free_volume_t g_raid_md_free_volume_promise;
152 static g_raid_md_free_t g_raid_md_free_promise;
154 static kobj_method_t g_raid_md_promise_methods[] = {
155 KOBJMETHOD(g_raid_md_create, g_raid_md_create_promise),
156 KOBJMETHOD(g_raid_md_taste, g_raid_md_taste_promise),
157 KOBJMETHOD(g_raid_md_event, g_raid_md_event_promise),
158 KOBJMETHOD(g_raid_md_volume_event, g_raid_md_volume_event_promise),
159 KOBJMETHOD(g_raid_md_ctl, g_raid_md_ctl_promise),
160 KOBJMETHOD(g_raid_md_write, g_raid_md_write_promise),
161 KOBJMETHOD(g_raid_md_fail_disk, g_raid_md_fail_disk_promise),
162 KOBJMETHOD(g_raid_md_free_disk, g_raid_md_free_disk_promise),
163 KOBJMETHOD(g_raid_md_free_volume, g_raid_md_free_volume_promise),
164 KOBJMETHOD(g_raid_md_free, g_raid_md_free_promise),
168 static struct g_raid_md_class g_raid_md_promise_class = {
170 g_raid_md_promise_methods,
171 sizeof(struct g_raid_md_object),
177 g_raid_md_promise_print(struct promise_raid_conf *meta)
181 if (g_raid_debug < 1)
184 printf("********* ATA Promise Metadata *********\n");
185 printf("promise_id <%.24s>\n", meta->promise_id);
186 printf("disk %02x %02x %02x %02x %016jx\n",
187 meta->disk.flags, meta->disk.number, meta->disk.channel,
188 meta->disk.device, meta->disk.id);
189 printf("disk_offset %u\n", meta->disk_offset);
190 printf("disk_sectors %u\n", meta->disk_sectors);
191 printf("rebuild_lba %u\n", meta->rebuild_lba);
192 printf("generation %u\n", meta->generation);
193 printf("status 0x%02x\n", meta->status);
194 printf("type %u\n", meta->type);
195 printf("total_disks %u\n", meta->total_disks);
196 printf("stripe_shift %u\n", meta->stripe_shift);
197 printf("array_width %u\n", meta->array_width);
198 printf("array_number %u\n", meta->array_number);
199 printf("total_sectors %u\n", meta->total_sectors);
200 printf("cylinders %u\n", meta->cylinders);
201 printf("heads %u\n", meta->heads);
202 printf("sectors %u\n", meta->sectors);
203 printf("volume_id 0x%016jx\n", meta->volume_id);
205 for (i = 0; i < PROMISE_MAX_DISKS; i++ ) {
206 printf(" %02x %02x %02x %02x %016jx\n",
207 meta->disks[i].flags, meta->disks[i].number,
208 meta->disks[i].channel, meta->disks[i].device,
211 printf("name <%.32s>\n", meta->name);
212 printf("magic_3 0x%08x\n", meta->magic_3);
213 printf("rebuild_lba64 %ju\n", meta->rebuild_lba64);
214 printf("magic_4 0x%08x\n", meta->magic_4);
215 printf("magic_5 0x%08x\n", meta->magic_5);
216 printf("=================================================\n");
219 static struct promise_raid_conf *
220 promise_meta_copy(struct promise_raid_conf *meta)
222 struct promise_raid_conf *nmeta;
224 nmeta = malloc(sizeof(*nmeta), M_MD_PROMISE, M_WAITOK);
225 memcpy(nmeta, meta, sizeof(*nmeta));
230 promise_meta_find_disk(struct promise_raid_conf *meta, uint64_t id)
234 for (pos = 0; pos < meta->total_disks; pos++) {
235 if (meta->disks[pos].id == id)
242 promise_meta_unused_range(struct promise_raid_conf **metaarr, int nsd,
243 uint32_t sectors, uint32_t *off, uint32_t *size)
245 uint32_t coff, csize;
255 for (j = 0; j < nsd; j++) {
256 if (metaarr[j]->disk_offset >= coff) {
258 metaarr[j]->disk_offset - coff);
267 coff = metaarr[i]->disk_offset + metaarr[i]->disk_sectors;
268 csize = sectors - coff;
271 return ((*size > 0) ? 1 : 0);
275 promise_meta_translate_disk(struct g_raid_volume *vol, int md_disk_pos)
279 if (md_disk_pos >= 0 && vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) {
280 width = vol->v_disks_count / 2;
281 disk_pos = (md_disk_pos / width) +
282 (md_disk_pos % width) * width;
284 disk_pos = md_disk_pos;
289 promise_meta_get_name(struct promise_raid_conf *meta, char *buf)
293 strncpy(buf, meta->name, 32);
295 for (i = 31; i >= 0; i--) {
303 promise_meta_put_name(struct promise_raid_conf *meta, char *buf)
306 memset(meta->name, 0x20, 32);
307 memcpy(meta->name, buf, MIN(strlen(buf), 32));
311 promise_meta_read(struct g_consumer *cp, struct promise_raid_conf **metaarr)
313 struct g_provider *pp;
314 struct promise_raid_conf *meta;
316 int error, i, subdisks;
317 uint32_t checksum, *ptr;
322 /* Read metadata block. */
323 buf = g_read_data(cp, pp->mediasize - pp->sectorsize *
324 (63 - subdisks * PROMISE_META_OFFSET),
325 pp->sectorsize * 4, &error);
327 G_RAID_DEBUG(1, "Cannot read metadata from %s (error=%d).",
331 meta = (struct promise_raid_conf *)buf;
333 /* Check if this is an Promise RAID struct */
334 if (strncmp(meta->promise_id, PROMISE_MAGIC, strlen(PROMISE_MAGIC)) &&
335 strncmp(meta->promise_id, FREEBSD_MAGIC, strlen(FREEBSD_MAGIC))) {
338 "Promise signature check failed on %s", pp->name);
342 meta = malloc(sizeof(*meta), M_MD_PROMISE, M_WAITOK);
343 memcpy(meta, buf, MIN(sizeof(*meta), pp->sectorsize * 4));
346 /* Check metadata checksum. */
347 for (checksum = 0, ptr = (uint32_t *)meta, i = 0; i < 511; i++)
349 if (checksum != meta->checksum) {
350 G_RAID_DEBUG(1, "Promise checksum check failed on %s", pp->name);
351 free(meta, M_MD_PROMISE);
355 if ((meta->integrity & PROMISE_I_VALID) == 0) {
356 G_RAID_DEBUG(1, "Promise metadata is invalid on %s", pp->name);
357 free(meta, M_MD_PROMISE);
361 if (meta->total_disks > PROMISE_MAX_DISKS) {
362 G_RAID_DEBUG(1, "Wrong number of disks on %s (%d)",
363 pp->name, meta->total_disks);
364 free(meta, M_MD_PROMISE);
368 /* Save this part and look for next. */
372 if (subdisks < PROMISE_MAX_SUBDISKS)
379 promise_meta_write(struct g_consumer *cp,
380 struct promise_raid_conf **metaarr, int nsd)
382 struct g_provider *pp;
383 struct promise_raid_conf *meta;
385 int error, i, subdisk, fake;
386 uint32_t checksum, *ptr, off, size;
392 buf = malloc(pp->sectorsize * 4, M_MD_PROMISE, M_WAITOK | M_ZERO);
395 meta = metaarr[subdisk];
396 } else if (!fake && promise_meta_unused_range(metaarr, nsd,
397 cp->provider->mediasize / cp->provider->sectorsize,
399 /* Optionally add record for unused space. */
400 meta = (struct promise_raid_conf *)buf;
401 memcpy(&meta->promise_id[0], PROMISE_MAGIC,
402 sizeof(PROMISE_MAGIC) - 1);
403 meta->dummy_0 = 0x00020000;
404 meta->integrity = PROMISE_I_VALID;
405 meta->disk.flags = PROMISE_F_ONLINE | PROMISE_F_VALID;
406 meta->disk.number = 0xff;
407 arc4rand(&meta->disk.id, sizeof(meta->disk.id), 0);
408 meta->disk_offset = off;
409 meta->disk_sectors = size;
410 meta->rebuild_lba = UINT32_MAX;
414 /* Recalculate checksum for case if metadata were changed. */
416 for (checksum = 0, ptr = (uint32_t *)meta, i = 0; i < 511; i++)
418 meta->checksum = checksum;
419 memcpy(buf, meta, MIN(pp->sectorsize * 4, sizeof(*meta)));
421 error = g_write_data(cp, pp->mediasize - pp->sectorsize *
422 (63 - subdisk * PROMISE_META_OFFSET),
423 buf, pp->sectorsize * 4);
425 G_RAID_DEBUG(1, "Cannot write metadata to %s (error=%d).",
428 free(buf, M_MD_PROMISE);
431 if (subdisk < PROMISE_MAX_SUBDISKS)
438 promise_meta_erase(struct g_consumer *cp)
440 struct g_provider *pp;
445 buf = malloc(4 * pp->sectorsize, M_MD_PROMISE, M_WAITOK | M_ZERO);
446 for (subdisk = 0; subdisk < PROMISE_MAX_SUBDISKS; subdisk++) {
447 error = g_write_data(cp, pp->mediasize - pp->sectorsize *
448 (63 - subdisk * PROMISE_META_OFFSET),
449 buf, 4 * pp->sectorsize);
451 G_RAID_DEBUG(1, "Cannot erase metadata on %s (error=%d).",
455 free(buf, M_MD_PROMISE);
460 promise_meta_write_spare(struct g_consumer *cp)
462 struct promise_raid_conf *meta;
465 meta = malloc(sizeof(*meta), M_MD_PROMISE, M_WAITOK | M_ZERO);
466 memcpy(&meta->promise_id[0], PROMISE_MAGIC, sizeof(PROMISE_MAGIC) - 1);
467 meta->dummy_0 = 0x00020000;
468 meta->integrity = PROMISE_I_VALID;
469 meta->disk.flags = PROMISE_F_SPARE | PROMISE_F_ONLINE | PROMISE_F_VALID;
470 meta->disk.number = 0xff;
471 arc4rand(&meta->disk.id, sizeof(meta->disk.id), 0);
472 meta->disk_sectors = cp->provider->mediasize / cp->provider->sectorsize;
473 meta->disk_sectors -= 131072;
474 meta->rebuild_lba = UINT32_MAX;
475 error = promise_meta_write(cp, &meta, 1);
476 free(meta, M_MD_PROMISE);
480 static struct g_raid_volume *
481 g_raid_md_promise_get_volume(struct g_raid_softc *sc, uint64_t id)
483 struct g_raid_volume *vol;
484 struct g_raid_md_promise_pervolume *pv;
486 TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) {
495 g_raid_md_promise_purge_volumes(struct g_raid_softc *sc)
497 struct g_raid_volume *vol, *tvol;
498 struct g_raid_md_promise_pervolume *pv;
502 TAILQ_FOREACH_SAFE(vol, &sc->sc_volumes, v_next, tvol) {
504 if (!pv->pv_started || vol->v_stopping)
506 for (i = 0; i < vol->v_disks_count; i++) {
507 if (vol->v_subdisks[i].sd_state != G_RAID_SUBDISK_S_NONE)
510 if (i >= vol->v_disks_count) {
511 g_raid_destroy_volume(vol);
519 g_raid_md_promise_purge_disks(struct g_raid_softc *sc)
521 struct g_raid_disk *disk, *tdisk;
522 struct g_raid_volume *vol;
523 struct g_raid_md_promise_perdisk *pd;
527 TAILQ_FOREACH_SAFE(disk, &sc->sc_disks, d_next, tdisk) {
528 if (disk->d_state == G_RAID_DISK_S_SPARE)
530 pd = (struct g_raid_md_promise_perdisk *)disk->d_md_data;
532 /* Scan for deleted volumes. */
533 for (i = 0; i < pd->pd_subdisks; ) {
534 vol = g_raid_md_promise_get_volume(sc,
535 pd->pd_meta[i]->volume_id);
536 if (vol != NULL && !vol->v_stopping) {
540 free(pd->pd_meta[i], M_MD_PROMISE);
541 for (j = i; j < pd->pd_subdisks - 1; j++)
542 pd->pd_meta[j] = pd->pd_meta[j + 1];
543 pd->pd_meta[PROMISE_MAX_SUBDISKS - 1] = NULL;
548 /* If there is no metadata left - erase and delete disk. */
549 if (pd->pd_subdisks == 0) {
550 promise_meta_erase(disk->d_consumer);
551 g_raid_destroy_disk(disk);
559 g_raid_md_promise_supported(int level, int qual, int disks, int force)
562 if (disks > PROMISE_MAX_DISKS)
565 case G_RAID_VOLUME_RL_RAID0:
568 if (!force && disks < 2)
571 case G_RAID_VOLUME_RL_RAID1:
574 if (!force && (disks != 2))
577 case G_RAID_VOLUME_RL_RAID1E:
582 if (!force && (disks != 4))
585 case G_RAID_VOLUME_RL_SINGLE:
589 case G_RAID_VOLUME_RL_CONCAT:
593 case G_RAID_VOLUME_RL_RAID5:
600 if (qual != G_RAID_VOLUME_RLQ_NONE)
606 g_raid_md_promise_start_disk(struct g_raid_disk *disk, int sdn,
607 struct g_raid_volume *vol)
609 struct g_raid_softc *sc;
610 struct g_raid_subdisk *sd;
611 struct g_raid_md_promise_perdisk *pd;
612 struct g_raid_md_promise_pervolume *pv;
613 struct promise_raid_conf *meta;
615 int disk_pos, md_disk_pos, i, resurrection = 0;
616 uint32_t eoff, esize;
619 pd = (struct g_raid_md_promise_perdisk *)disk->d_md_data;
625 /* Find disk position in metadata by it's serial. */
626 md_disk_pos = promise_meta_find_disk(meta, pd->pd_meta[sdn]->disk.id);
627 /* For RAID0+1 we need to translate order. */
628 disk_pos = promise_meta_translate_disk(vol, md_disk_pos);
634 G_RAID_DEBUG1(1, sc, "Disk %s is not part of the volume %s",
635 g_raid_get_diskname(disk), vol->v_name);
636 /* Failed stale disk is useless for us. */
638 pd->pd_meta[sdn]->disk.flags & PROMISE_F_DOWN) {
639 g_raid_change_disk_state(disk, G_RAID_DISK_S_STALE_FAILED);
642 /* If we were given specific metadata subdisk - erase it. */
644 free(pd->pd_meta[sdn], M_MD_PROMISE);
645 for (i = sdn; i < pd->pd_subdisks - 1; i++)
646 pd->pd_meta[i] = pd->pd_meta[i + 1];
647 pd->pd_meta[PROMISE_MAX_SUBDISKS - 1] = NULL;
650 /* If we are in the start process, that's all for now. */
654 * If we have already started - try to get use of the disk.
655 * Try to replace OFFLINE disks first, then FAILED.
657 promise_meta_unused_range(pd->pd_meta, pd->pd_subdisks,
658 disk->d_consumer->provider->mediasize /
659 disk->d_consumer->provider->sectorsize,
662 G_RAID_DEBUG1(1, sc, "No free space on disk %s",
663 g_raid_get_diskname(disk));
667 for (i = 0; i < vol->v_disks_count; i++) {
668 sd = &vol->v_subdisks[i];
669 if (sd->sd_state != G_RAID_SUBDISK_S_NONE)
671 if (sd->sd_state <= G_RAID_SUBDISK_S_FAILED &&
673 vol->v_subdisks[i].sd_state < sd->sd_state))
677 vol->v_raid_level != G_RAID_VOLUME_RL_CONCAT &&
678 (off_t)esize * 512 < size) {
679 G_RAID_DEBUG1(1, sc, "Disk %s free space "
680 "is too small (%ju < %ju)",
681 g_raid_get_diskname(disk),
682 (off_t)esize * 512, size);
686 if (vol->v_raid_level != G_RAID_VOLUME_RL_CONCAT)
688 /* For RAID0+1 we need to translate order. */
689 md_disk_pos = promise_meta_translate_disk(vol, disk_pos);
692 if (pd->pd_subdisks == 0) {
693 g_raid_change_disk_state(disk,
694 G_RAID_DISK_S_SPARE);
698 G_RAID_DEBUG1(1, sc, "Disk %s takes pos %d in the volume %s",
699 g_raid_get_diskname(disk), disk_pos, vol->v_name);
703 sd = &vol->v_subdisks[disk_pos];
705 if (resurrection && sd->sd_disk != NULL) {
706 g_raid_change_disk_state(sd->sd_disk,
707 G_RAID_DISK_S_STALE_FAILED);
708 TAILQ_REMOVE(&sd->sd_disk->d_subdisks,
711 vol->v_subdisks[disk_pos].sd_disk = disk;
712 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next);
714 /* Welcome the new disk. */
716 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE);
717 else if (meta->disks[md_disk_pos].flags & PROMISE_F_DOWN)
718 g_raid_change_disk_state(disk, G_RAID_DISK_S_FAILED);
720 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE);
723 sd->sd_offset = (off_t)eoff * 512;
724 sd->sd_size = (off_t)esize * 512;
726 sd->sd_offset = (off_t)pd->pd_meta[sdn]->disk_offset * 512;
727 sd->sd_size = (off_t)pd->pd_meta[sdn]->disk_sectors * 512;
731 /* Stale disk, almost same as new. */
732 g_raid_change_subdisk_state(sd,
733 G_RAID_SUBDISK_S_NEW);
734 } else if (meta->disks[md_disk_pos].flags & PROMISE_F_DOWN) {
736 g_raid_change_subdisk_state(sd,
737 G_RAID_SUBDISK_S_FAILED);
738 } else if (meta->disks[md_disk_pos].flags & PROMISE_F_REDIR) {
739 /* Rebuilding disk. */
740 g_raid_change_subdisk_state(sd,
741 G_RAID_SUBDISK_S_REBUILD);
742 if (pd->pd_meta[sdn]->generation != meta->generation)
743 sd->sd_rebuild_pos = 0;
746 (off_t)pd->pd_meta[sdn]->rebuild_lba * 512;
748 } else if (!(meta->disks[md_disk_pos].flags & PROMISE_F_ONLINE)) {
749 /* Rebuilding disk. */
750 g_raid_change_subdisk_state(sd,
751 G_RAID_SUBDISK_S_NEW);
752 } else if (pd->pd_meta[sdn]->generation != meta->generation ||
753 (meta->status & PROMISE_S_MARKED)) {
754 /* Stale disk or dirty volume (unclean shutdown). */
755 g_raid_change_subdisk_state(sd,
756 G_RAID_SUBDISK_S_STALE);
758 /* Up to date disk. */
759 g_raid_change_subdisk_state(sd,
760 G_RAID_SUBDISK_S_ACTIVE);
762 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW,
763 G_RAID_EVENT_SUBDISK);
765 return (resurrection);
769 g_raid_md_promise_refill(struct g_raid_softc *sc)
771 struct g_raid_volume *vol;
772 struct g_raid_subdisk *sd;
773 struct g_raid_disk *disk;
774 struct g_raid_md_object *md;
775 struct g_raid_md_promise_perdisk *pd;
776 struct g_raid_md_promise_pervolume *pv;
777 int update, updated, i, bad;
782 TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) {
784 if (!pv->pv_started || vol->v_stopping)
787 /* Search for subdisk that needs replacement. */
789 for (i = 0; i < vol->v_disks_count; i++) {
790 sd = &vol->v_subdisks[i];
791 if (sd->sd_state == G_RAID_SUBDISK_S_NONE ||
792 sd->sd_state == G_RAID_SUBDISK_S_FAILED)
798 G_RAID_DEBUG1(1, sc, "Volume %s is not complete, "
799 "trying to refill.", vol->v_name);
801 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
803 if (disk->d_state < G_RAID_DISK_S_SPARE)
805 /* Skip already used by this volume. */
806 for (i = 0; i < vol->v_disks_count; i++) {
807 sd = &vol->v_subdisks[i];
808 if (sd->sd_disk == disk)
811 if (i < vol->v_disks_count)
814 /* Try to use disk if it has empty extents. */
815 pd = disk->d_md_data;
816 if (pd->pd_subdisks < PROMISE_MAX_SUBDISKS) {
818 g_raid_md_promise_start_disk(disk, -1, vol);
823 g_raid_md_write_promise(md, vol, NULL, disk);
833 g_raid_md_promise_start(struct g_raid_volume *vol)
835 struct g_raid_softc *sc;
836 struct g_raid_subdisk *sd;
837 struct g_raid_disk *disk;
838 struct g_raid_md_object *md;
839 struct g_raid_md_promise_perdisk *pd;
840 struct g_raid_md_promise_pervolume *pv;
841 struct promise_raid_conf *meta;
849 if (meta->type == PROMISE_T_RAID0)
850 vol->v_raid_level = G_RAID_VOLUME_RL_RAID0;
851 else if (meta->type == PROMISE_T_RAID1) {
852 if (meta->array_width == 1)
853 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1;
855 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1E;
856 } else if (meta->type == PROMISE_T_RAID3)
857 vol->v_raid_level = G_RAID_VOLUME_RL_RAID3;
858 else if (meta->type == PROMISE_T_RAID5)
859 vol->v_raid_level = G_RAID_VOLUME_RL_RAID5;
860 else if (meta->type == PROMISE_T_SPAN)
861 vol->v_raid_level = G_RAID_VOLUME_RL_CONCAT;
862 else if (meta->type == PROMISE_T_JBOD)
863 vol->v_raid_level = G_RAID_VOLUME_RL_SINGLE;
865 vol->v_raid_level = G_RAID_VOLUME_RL_UNKNOWN;
866 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_NONE;
867 vol->v_strip_size = 512 << meta->stripe_shift; //ZZZ
868 vol->v_disks_count = meta->total_disks;
869 vol->v_mediasize = (off_t)meta->total_sectors * 512; //ZZZ
870 vol->v_sectorsize = 512; //ZZZ
871 for (i = 0; i < vol->v_disks_count; i++) {
872 sd = &vol->v_subdisks[i];
873 sd->sd_offset = (off_t)meta->disk_offset * 512; //ZZZ
874 sd->sd_size = (off_t)meta->disk_sectors * 512; //ZZZ
876 g_raid_start_volume(vol);
878 /* Make all disks found till the moment take their places. */
879 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
880 pd = disk->d_md_data;
881 for (i = 0; i < pd->pd_subdisks; i++) {
882 if (pd->pd_meta[i]->volume_id == meta->volume_id)
883 g_raid_md_promise_start_disk(disk, i, vol);
888 callout_stop(&pv->pv_start_co);
889 G_RAID_DEBUG1(0, sc, "Volume started.");
890 g_raid_md_write_promise(md, vol, NULL, NULL);
892 /* Pickup any STALE/SPARE disks to refill array if needed. */
893 g_raid_md_promise_refill(sc);
895 g_raid_event_send(vol, G_RAID_VOLUME_E_START, G_RAID_EVENT_VOLUME);
899 g_raid_promise_go(void *arg)
901 struct g_raid_volume *vol;
902 struct g_raid_softc *sc;
903 struct g_raid_md_promise_pervolume *pv;
908 if (!pv->pv_started) {
909 G_RAID_DEBUG1(0, sc, "Force volume start due to timeout.");
910 g_raid_event_send(vol, G_RAID_VOLUME_E_STARTMD,
911 G_RAID_EVENT_VOLUME);
916 g_raid_md_promise_new_disk(struct g_raid_disk *disk)
918 struct g_raid_softc *sc;
919 struct g_raid_md_object *md;
920 struct promise_raid_conf *pdmeta;
921 struct g_raid_md_promise_perdisk *pd;
922 struct g_raid_md_promise_pervolume *pv;
923 struct g_raid_volume *vol;
929 pd = (struct g_raid_md_promise_perdisk *)disk->d_md_data;
931 if (pd->pd_subdisks == 0) {
932 g_raid_change_disk_state(disk, G_RAID_DISK_S_SPARE);
933 g_raid_md_promise_refill(sc);
937 for (i = 0; i < pd->pd_subdisks; i++) {
938 pdmeta = pd->pd_meta[i];
940 /* Look for volume with matching ID. */
941 vol = g_raid_md_promise_get_volume(sc, pdmeta->volume_id);
943 promise_meta_get_name(pdmeta, buf);
944 vol = g_raid_create_volume(sc, buf, pdmeta->array_number);
945 pv = malloc(sizeof(*pv), M_MD_PROMISE, M_WAITOK | M_ZERO);
946 pv->pv_id = pdmeta->volume_id;
948 callout_init(&pv->pv_start_co, 1);
949 callout_reset(&pv->pv_start_co,
950 g_raid_start_timeout * hz,
951 g_raid_promise_go, vol);
955 /* If we haven't started yet - check metadata freshness. */
956 if (pv->pv_meta == NULL || !pv->pv_started) {
957 if (pv->pv_meta == NULL ||
958 ((int16_t)(pdmeta->generation - pv->pv_generation)) > 0) {
959 G_RAID_DEBUG1(1, sc, "Newer disk");
960 if (pv->pv_meta != NULL)
961 free(pv->pv_meta, M_MD_PROMISE);
962 pv->pv_meta = promise_meta_copy(pdmeta);
963 pv->pv_generation = pv->pv_meta->generation;
964 pv->pv_disks_present = 1;
965 } else if (pdmeta->generation == pv->pv_generation) {
966 pv->pv_disks_present++;
967 G_RAID_DEBUG1(1, sc, "Matching disk (%d of %d up)",
968 pv->pv_disks_present,
969 pv->pv_meta->total_disks);
971 G_RAID_DEBUG1(1, sc, "Older disk");
976 for (i = 0; i < pd->pd_subdisks; i++) {
977 pdmeta = pd->pd_meta[i];
979 /* Look for volume with matching ID. */
980 vol = g_raid_md_promise_get_volume(sc, pdmeta->volume_id);
985 if (pv->pv_started) {
986 if (g_raid_md_promise_start_disk(disk, i, vol))
987 g_raid_md_write_promise(md, vol, NULL, NULL);
989 /* If we collected all needed disks - start array. */
990 if (pv->pv_disks_present == pv->pv_meta->total_disks)
991 g_raid_md_promise_start(vol);
997 g_raid_md_create_promise(struct g_raid_md_object *md, struct g_class *mp,
1000 struct g_geom *geom;
1001 struct g_raid_softc *sc;
1003 /* Search for existing node. */
1004 LIST_FOREACH(geom, &mp->geom, geom) {
1008 if (sc->sc_stopping != 0)
1010 if (sc->sc_md->mdo_class != md->mdo_class)
1016 return (G_RAID_MD_TASTE_EXISTING);
1019 /* Create new one if not found. */
1020 sc = g_raid_create_node(mp, "Promise", md);
1022 return (G_RAID_MD_TASTE_FAIL);
1025 return (G_RAID_MD_TASTE_NEW);
1029 g_raid_md_taste_promise(struct g_raid_md_object *md, struct g_class *mp,
1030 struct g_consumer *cp, struct g_geom **gp)
1032 struct g_consumer *rcp;
1033 struct g_provider *pp;
1034 struct g_raid_softc *sc;
1035 struct g_raid_disk *disk;
1036 struct promise_raid_conf *meta, *metaarr[4];
1037 struct g_raid_md_promise_perdisk *pd;
1038 struct g_geom *geom;
1039 int error, i, j, result, len, subdisks;
1043 G_RAID_DEBUG(1, "Tasting Promise on %s", cp->provider->name);
1046 /* Read metadata from device. */
1049 if (g_access(cp, 1, 0, 0) != 0)
1050 return (G_RAID_MD_TASTE_FAIL);
1051 g_topology_unlock();
1053 if (pp->geom->rank == 1)
1054 g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor);
1055 subdisks = promise_meta_read(cp, metaarr);
1057 g_access(cp, -1, 0, 0);
1058 if (subdisks == 0) {
1059 if (g_raid_aggressive_spare) {
1060 if (vendor == 0x105a || vendor == 0x1002) {
1062 "No Promise metadata, forcing spare.");
1066 "Promise/ATI vendor mismatch "
1067 "0x%04x != 0x105a/0x1002",
1071 return (G_RAID_MD_TASTE_FAIL);
1074 /* Metadata valid. Print it. */
1075 for (i = 0; i < subdisks; i++)
1076 g_raid_md_promise_print(metaarr[i]);
1078 /* Purge meaningless (empty/spare) records. */
1079 for (i = 0; i < subdisks; ) {
1080 if (metaarr[i]->disk.flags & PROMISE_F_ASSIGNED) {
1084 free(metaarr[i], M_MD_PROMISE);
1085 for (j = i; j < subdisks - 1; j++)
1086 metaarr[i] = metaarr[j + 1];
1087 metaarr[PROMISE_MAX_SUBDISKS - 1] = NULL;
1092 /* Search for matching node. */
1094 LIST_FOREACH(geom, &mp->geom, geom) {
1098 if (sc->sc_stopping != 0)
1100 if (sc->sc_md->mdo_class != md->mdo_class)
1105 /* Found matching node. */
1107 G_RAID_DEBUG(1, "Found matching array %s", sc->sc_name);
1108 result = G_RAID_MD_TASTE_EXISTING;
1110 } else { /* Not found matching node -- create one. */
1111 result = G_RAID_MD_TASTE_NEW;
1112 snprintf(name, sizeof(name), "Promise");
1113 sc = g_raid_create_node(mp, name, md);
1118 rcp = g_new_consumer(geom);
1120 if (g_access(rcp, 1, 1, 1) != 0)
1123 g_topology_unlock();
1124 sx_xlock(&sc->sc_lock);
1126 pd = malloc(sizeof(*pd), M_MD_PROMISE, M_WAITOK | M_ZERO);
1127 pd->pd_subdisks = subdisks;
1128 for (i = 0; i < subdisks; i++)
1129 pd->pd_meta[i] = metaarr[i];
1130 disk = g_raid_create_disk(sc);
1131 disk->d_md_data = (void *)pd;
1132 disk->d_consumer = rcp;
1133 rcp->private = disk;
1135 /* Read kernel dumping information. */
1136 disk->d_kd.offset = 0;
1137 disk->d_kd.length = OFF_MAX;
1138 len = sizeof(disk->d_kd);
1139 error = g_io_getattr("GEOM::kerneldump", rcp, &len, &disk->d_kd);
1140 if (disk->d_kd.di.dumper == NULL)
1141 G_RAID_DEBUG1(2, sc, "Dumping not supported by %s: %d.",
1142 rcp->provider->name, error);
1144 g_raid_md_promise_new_disk(disk);
1146 sx_xunlock(&sc->sc_lock);
1153 g_raid_md_event_promise(struct g_raid_md_object *md,
1154 struct g_raid_disk *disk, u_int event)
1156 struct g_raid_softc *sc;
1162 case G_RAID_DISK_E_DISCONNECTED:
1164 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE);
1165 g_raid_destroy_disk(disk);
1166 g_raid_md_promise_purge_volumes(sc);
1168 /* Write updated metadata to all disks. */
1169 g_raid_md_write_promise(md, NULL, NULL, NULL);
1171 /* Check if anything left. */
1172 if (g_raid_ndisks(sc, -1) == 0)
1173 g_raid_destroy_node(sc, 0);
1175 g_raid_md_promise_refill(sc);
1182 g_raid_md_volume_event_promise(struct g_raid_md_object *md,
1183 struct g_raid_volume *vol, u_int event)
1185 struct g_raid_md_promise_pervolume *pv;
1187 pv = (struct g_raid_md_promise_pervolume *)vol->v_md_data;
1189 case G_RAID_VOLUME_E_STARTMD:
1190 if (!pv->pv_started)
1191 g_raid_md_promise_start(vol);
1198 g_raid_md_ctl_promise(struct g_raid_md_object *md,
1199 struct gctl_req *req)
1201 struct g_raid_softc *sc;
1202 struct g_raid_volume *vol, *vol1;
1203 struct g_raid_subdisk *sd;
1204 struct g_raid_disk *disk, *disks[PROMISE_MAX_DISKS];
1205 struct g_raid_md_promise_perdisk *pd;
1206 struct g_raid_md_promise_pervolume *pv;
1207 struct g_consumer *cp;
1208 struct g_provider *pp;
1210 const char *verb, *volname, *levelname, *diskname;
1213 off_t size, sectorsize, strip;
1214 intmax_t *sizearg, *striparg;
1215 uint32_t offs[PROMISE_MAX_DISKS], esize;
1216 int numdisks, i, len, level, qual;
1220 verb = gctl_get_param(req, "verb", NULL);
1221 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
1223 if (strcmp(verb, "label") == 0) {
1226 gctl_error(req, "Invalid number of arguments.");
1229 volname = gctl_get_asciiparam(req, "arg1");
1230 if (volname == NULL) {
1231 gctl_error(req, "No volume name.");
1234 levelname = gctl_get_asciiparam(req, "arg2");
1235 if (levelname == NULL) {
1236 gctl_error(req, "No RAID level.");
1239 if (g_raid_volume_str2level(levelname, &level, &qual)) {
1240 gctl_error(req, "Unknown RAID level '%s'.", levelname);
1243 numdisks = *nargs - 3;
1244 force = gctl_get_paraml(req, "force", sizeof(*force));
1245 if (!g_raid_md_promise_supported(level, qual, numdisks,
1246 force ? *force : 0)) {
1247 gctl_error(req, "Unsupported RAID level "
1248 "(0x%02x/0x%02x), or number of disks (%d).",
1249 level, qual, numdisks);
1253 /* Search for disks, connect them and probe. */
1256 bzero(disks, sizeof(disks));
1257 bzero(offs, sizeof(offs));
1258 for (i = 0; i < numdisks; i++) {
1259 snprintf(arg, sizeof(arg), "arg%d", i + 3);
1260 diskname = gctl_get_asciiparam(req, arg);
1261 if (diskname == NULL) {
1262 gctl_error(req, "No disk name (%s).", arg);
1266 if (strcmp(diskname, "NONE") == 0)
1269 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1270 if (disk->d_consumer != NULL &&
1271 disk->d_consumer->provider != NULL &&
1272 strcmp(disk->d_consumer->provider->name,
1277 if (disk->d_state != G_RAID_DISK_S_ACTIVE) {
1278 gctl_error(req, "Disk '%s' is in a "
1279 "wrong state (%s).", diskname,
1280 g_raid_disk_state2str(disk->d_state));
1284 pd = disk->d_md_data;
1285 if (pd->pd_subdisks >= PROMISE_MAX_SUBDISKS) {
1286 gctl_error(req, "Disk '%s' already "
1287 "used by %d volumes.",
1288 diskname, pd->pd_subdisks);
1292 pp = disk->d_consumer->provider;
1294 promise_meta_unused_range(pd->pd_meta,
1296 pp->mediasize / pp->sectorsize,
1298 size = MIN(size, (off_t)esize * pp->sectorsize);
1299 sectorsize = MAX(sectorsize, pp->sectorsize);
1304 cp = g_raid_open_consumer(sc, diskname);
1306 gctl_error(req, "Can't open disk '%s'.",
1308 g_topology_unlock();
1313 pd = malloc(sizeof(*pd), M_MD_PROMISE, M_WAITOK | M_ZERO);
1314 disk = g_raid_create_disk(sc);
1315 disk->d_md_data = (void *)pd;
1316 disk->d_consumer = cp;
1319 g_topology_unlock();
1321 /* Read kernel dumping information. */
1322 disk->d_kd.offset = 0;
1323 disk->d_kd.length = OFF_MAX;
1324 len = sizeof(disk->d_kd);
1325 g_io_getattr("GEOM::kerneldump", cp, &len, &disk->d_kd);
1326 if (disk->d_kd.di.dumper == NULL)
1327 G_RAID_DEBUG1(2, sc,
1328 "Dumping not supported by %s.",
1329 cp->provider->name);
1331 /* Reserve some space for metadata. */
1332 size = MIN(size, pp->mediasize - 131072llu * pp->sectorsize);
1333 sectorsize = MAX(sectorsize, pp->sectorsize);
1336 for (i = 0; i < numdisks; i++) {
1337 if (disks[i] != NULL &&
1338 disks[i]->d_state == G_RAID_DISK_S_NONE)
1339 g_raid_destroy_disk(disks[i]);
1344 if (sectorsize <= 0) {
1345 gctl_error(req, "Can't get sector size.");
1349 /* Handle size argument. */
1350 len = sizeof(*sizearg);
1351 sizearg = gctl_get_param(req, "size", &len);
1352 if (sizearg != NULL && len == sizeof(*sizearg) &&
1354 if (*sizearg > size) {
1355 gctl_error(req, "Size too big %lld > %lld.",
1356 (long long)*sizearg, (long long)size);
1362 /* Handle strip argument. */
1364 len = sizeof(*striparg);
1365 striparg = gctl_get_param(req, "strip", &len);
1366 if (striparg != NULL && len == sizeof(*striparg) &&
1368 if (*striparg < sectorsize) {
1369 gctl_error(req, "Strip size too small.");
1372 if (*striparg % sectorsize != 0) {
1373 gctl_error(req, "Incorrect strip size.");
1379 /* Round size down to strip or sector. */
1380 if (level == G_RAID_VOLUME_RL_RAID1 ||
1381 level == G_RAID_VOLUME_RL_SINGLE ||
1382 level == G_RAID_VOLUME_RL_CONCAT)
1383 size -= (size % sectorsize);
1384 else if (level == G_RAID_VOLUME_RL_RAID1E &&
1385 (numdisks & 1) != 0)
1386 size -= (size % (2 * strip));
1388 size -= (size % strip);
1390 gctl_error(req, "Size too small.");
1393 if (size > 0xffffffffllu * sectorsize) {
1394 gctl_error(req, "Size too big.");
1398 /* We have all we need, create things: volume, ... */
1399 pv = malloc(sizeof(*pv), M_MD_PROMISE, M_WAITOK | M_ZERO);
1400 arc4rand(&pv->pv_id, sizeof(pv->pv_id), 0);
1401 pv->pv_generation = 0;
1403 vol = g_raid_create_volume(sc, volname, -1);
1404 vol->v_md_data = pv;
1405 vol->v_raid_level = level;
1406 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_NONE;
1407 vol->v_strip_size = strip;
1408 vol->v_disks_count = numdisks;
1409 if (level == G_RAID_VOLUME_RL_RAID0 ||
1410 level == G_RAID_VOLUME_RL_CONCAT ||
1411 level == G_RAID_VOLUME_RL_SINGLE)
1412 vol->v_mediasize = size * numdisks;
1413 else if (level == G_RAID_VOLUME_RL_RAID1)
1414 vol->v_mediasize = size;
1415 else if (level == G_RAID_VOLUME_RL_RAID3 ||
1416 level == G_RAID_VOLUME_RL_RAID5)
1417 vol->v_mediasize = size * (numdisks - 1);
1419 vol->v_mediasize = ((size * numdisks) / strip / 2) *
1422 vol->v_sectorsize = sectorsize;
1423 g_raid_start_volume(vol);
1425 /* , and subdisks. */
1426 for (i = 0; i < numdisks; i++) {
1428 sd = &vol->v_subdisks[i];
1430 sd->sd_offset = (off_t)offs[i] * 512;
1434 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next);
1435 g_raid_change_disk_state(disk,
1436 G_RAID_DISK_S_ACTIVE);
1437 g_raid_change_subdisk_state(sd,
1438 G_RAID_SUBDISK_S_ACTIVE);
1439 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW,
1440 G_RAID_EVENT_SUBDISK);
1443 /* Write metadata based on created entities. */
1444 G_RAID_DEBUG1(0, sc, "Array started.");
1445 g_raid_md_write_promise(md, vol, NULL, NULL);
1447 /* Pickup any STALE/SPARE disks to refill array if needed. */
1448 g_raid_md_promise_refill(sc);
1450 g_raid_event_send(vol, G_RAID_VOLUME_E_START,
1451 G_RAID_EVENT_VOLUME);
1454 if (strcmp(verb, "add") == 0) {
1456 gctl_error(req, "`add` command is not applicable, "
1457 "use `label` instead.");
1460 if (strcmp(verb, "delete") == 0) {
1462 /* Full node destruction. */
1464 /* Check if some volume is still open. */
1465 force = gctl_get_paraml(req, "force", sizeof(*force));
1466 if (force != NULL && *force == 0 &&
1467 g_raid_nopens(sc) != 0) {
1468 gctl_error(req, "Some volume is still open.");
1472 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1473 if (disk->d_consumer)
1474 promise_meta_erase(disk->d_consumer);
1476 g_raid_destroy_node(sc, 0);
1480 /* Destroy specified volume. If it was last - all node. */
1482 gctl_error(req, "Invalid number of arguments.");
1485 volname = gctl_get_asciiparam(req, "arg1");
1486 if (volname == NULL) {
1487 gctl_error(req, "No volume name.");
1491 /* Search for volume. */
1492 TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) {
1493 if (strcmp(vol->v_name, volname) == 0)
1497 i = strtol(volname, &tmp, 10);
1498 if (verb != volname && tmp[0] == 0) {
1499 TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) {
1500 if (vol->v_global_id == i)
1506 gctl_error(req, "Volume '%s' not found.", volname);
1510 /* Check if volume is still open. */
1511 force = gctl_get_paraml(req, "force", sizeof(*force));
1512 if (force != NULL && *force == 0 &&
1513 vol->v_provider_open != 0) {
1514 gctl_error(req, "Volume is still open.");
1518 /* Destroy volume and potentially node. */
1520 TAILQ_FOREACH(vol1, &sc->sc_volumes, v_next)
1523 g_raid_destroy_volume(vol);
1524 g_raid_md_promise_purge_disks(sc);
1525 g_raid_md_write_promise(md, NULL, NULL, NULL);
1527 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1528 if (disk->d_consumer)
1529 promise_meta_erase(disk->d_consumer);
1531 g_raid_destroy_node(sc, 0);
1535 if (strcmp(verb, "remove") == 0 ||
1536 strcmp(verb, "fail") == 0) {
1538 gctl_error(req, "Invalid number of arguments.");
1541 for (i = 1; i < *nargs; i++) {
1542 snprintf(arg, sizeof(arg), "arg%d", i);
1543 diskname = gctl_get_asciiparam(req, arg);
1544 if (diskname == NULL) {
1545 gctl_error(req, "No disk name (%s).", arg);
1549 if (strncmp(diskname, "/dev/", 5) == 0)
1552 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1553 if (disk->d_consumer != NULL &&
1554 disk->d_consumer->provider != NULL &&
1555 strcmp(disk->d_consumer->provider->name,
1560 gctl_error(req, "Disk '%s' not found.",
1566 if (strcmp(verb, "fail") == 0) {
1567 g_raid_md_fail_disk_promise(md, NULL, disk);
1571 /* Erase metadata on deleting disk and destroy it. */
1572 promise_meta_erase(disk->d_consumer);
1573 g_raid_destroy_disk(disk);
1575 g_raid_md_promise_purge_volumes(sc);
1577 /* Write updated metadata to remaining disks. */
1578 g_raid_md_write_promise(md, NULL, NULL, NULL);
1580 /* Check if anything left. */
1581 if (g_raid_ndisks(sc, -1) == 0)
1582 g_raid_destroy_node(sc, 0);
1584 g_raid_md_promise_refill(sc);
1587 if (strcmp(verb, "insert") == 0) {
1589 gctl_error(req, "Invalid number of arguments.");
1592 for (i = 1; i < *nargs; i++) {
1593 /* Get disk name. */
1594 snprintf(arg, sizeof(arg), "arg%d", i);
1595 diskname = gctl_get_asciiparam(req, arg);
1596 if (diskname == NULL) {
1597 gctl_error(req, "No disk name (%s).", arg);
1602 /* Try to find provider with specified name. */
1604 cp = g_raid_open_consumer(sc, diskname);
1606 gctl_error(req, "Can't open disk '%s'.",
1608 g_topology_unlock();
1612 g_topology_unlock();
1614 pd = malloc(sizeof(*pd), M_MD_PROMISE, M_WAITOK | M_ZERO);
1616 disk = g_raid_create_disk(sc);
1617 disk->d_consumer = cp;
1618 disk->d_md_data = (void *)pd;
1621 /* Read kernel dumping information. */
1622 disk->d_kd.offset = 0;
1623 disk->d_kd.length = OFF_MAX;
1624 len = sizeof(disk->d_kd);
1625 g_io_getattr("GEOM::kerneldump", cp, &len, &disk->d_kd);
1626 if (disk->d_kd.di.dumper == NULL)
1627 G_RAID_DEBUG1(2, sc,
1628 "Dumping not supported by %s.",
1629 cp->provider->name);
1631 /* Welcome the "new" disk. */
1632 g_raid_change_disk_state(disk, G_RAID_DISK_S_SPARE);
1633 promise_meta_write_spare(cp);
1634 g_raid_md_promise_refill(sc);
1642 g_raid_md_write_promise(struct g_raid_md_object *md, struct g_raid_volume *tvol,
1643 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk)
1645 struct g_raid_softc *sc;
1646 struct g_raid_volume *vol;
1647 struct g_raid_subdisk *sd;
1648 struct g_raid_disk *disk;
1649 struct g_raid_md_promise_perdisk *pd;
1650 struct g_raid_md_promise_pervolume *pv;
1651 struct promise_raid_conf *meta;
1652 off_t rebuild_lba64;
1653 int i, j, pos, rebuild;
1657 if (sc->sc_stopping == G_RAID_DESTROY_HARD)
1660 /* Generate new per-volume metadata for affected volumes. */
1661 TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) {
1662 if (vol->v_stopping)
1665 /* Skip volumes not related to specified targets. */
1666 if (tvol != NULL && vol != tvol)
1668 if (tsd != NULL && vol != tsd->sd_volume)
1670 if (tdisk != NULL) {
1671 for (i = 0; i < vol->v_disks_count; i++) {
1672 if (vol->v_subdisks[i].sd_disk == tdisk)
1675 if (i >= vol->v_disks_count)
1679 pv = (struct g_raid_md_promise_pervolume *)vol->v_md_data;
1680 pv->pv_generation++;
1682 meta = malloc(sizeof(*meta), M_MD_PROMISE, M_WAITOK | M_ZERO);
1683 if (pv->pv_meta != NULL)
1684 memcpy(meta, pv->pv_meta, sizeof(*meta));
1685 memcpy(meta->promise_id, PROMISE_MAGIC,
1686 sizeof(PROMISE_MAGIC) - 1);
1687 meta->dummy_0 = 0x00020000;
1688 meta->integrity = PROMISE_I_VALID;
1690 meta->generation = pv->pv_generation;
1691 meta->status = PROMISE_S_VALID | PROMISE_S_ONLINE |
1692 PROMISE_S_INITED | PROMISE_S_READY;
1693 if (vol->v_state <= G_RAID_VOLUME_S_DEGRADED)
1694 meta->status |= PROMISE_S_DEGRADED;
1696 meta->status |= PROMISE_S_MARKED; /* XXX: INVENTED! */
1697 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID0 ||
1698 vol->v_raid_level == G_RAID_VOLUME_RL_SINGLE)
1699 meta->type = PROMISE_T_RAID0;
1700 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1 ||
1701 vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E)
1702 meta->type = PROMISE_T_RAID1;
1703 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID3)
1704 meta->type = PROMISE_T_RAID3;
1705 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID5)
1706 meta->type = PROMISE_T_RAID5;
1707 else if (vol->v_raid_level == G_RAID_VOLUME_RL_CONCAT)
1708 meta->type = PROMISE_T_SPAN;
1710 meta->type = PROMISE_T_JBOD;
1711 meta->total_disks = vol->v_disks_count;
1712 meta->stripe_shift = ffs(vol->v_strip_size / 1024);
1713 meta->array_width = vol->v_disks_count;
1714 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1 ||
1715 vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E)
1716 meta->array_width /= 2;
1717 meta->array_number = vol->v_global_id;
1718 meta->total_sectors = vol->v_mediasize / vol->v_sectorsize;
1719 meta->cylinders = meta->total_sectors / (255 * 63) - 1;
1722 meta->volume_id = pv->pv_id;
1723 rebuild_lba64 = UINT64_MAX;
1725 for (i = 0; i < vol->v_disks_count; i++) {
1726 sd = &vol->v_subdisks[i];
1727 /* For RAID0+1 we need to translate order. */
1728 pos = promise_meta_translate_disk(vol, i);
1729 meta->disks[pos].flags = PROMISE_F_VALID |
1731 if (sd->sd_state == G_RAID_SUBDISK_S_NONE) {
1732 meta->disks[pos].flags |= 0;
1733 } else if (sd->sd_state == G_RAID_SUBDISK_S_FAILED) {
1734 meta->disks[pos].flags |=
1735 PROMISE_F_DOWN | PROMISE_F_REDIR;
1736 } else if (sd->sd_state <= G_RAID_SUBDISK_S_REBUILD) {
1737 meta->disks[pos].flags |=
1738 PROMISE_F_ONLINE | PROMISE_F_REDIR;
1739 if (sd->sd_state == G_RAID_SUBDISK_S_REBUILD) {
1740 rebuild_lba64 = MIN(rebuild_lba64,
1741 sd->sd_rebuild_pos / 512);
1746 meta->disks[pos].flags |= PROMISE_F_ONLINE;
1747 if (sd->sd_state < G_RAID_SUBDISK_S_ACTIVE) {
1748 meta->status |= PROMISE_S_MARKED;
1749 if (sd->sd_state == G_RAID_SUBDISK_S_RESYNC) {
1750 rebuild_lba64 = MIN(rebuild_lba64,
1751 sd->sd_rebuild_pos / 512);
1756 if (pv->pv_meta != NULL) {
1757 meta->disks[pos].id = pv->pv_meta->disks[pos].id;
1759 meta->disks[pos].number = i * 2;
1760 arc4rand(&meta->disks[pos].id,
1761 sizeof(meta->disks[pos].id), 0);
1764 promise_meta_put_name(meta, vol->v_name);
1766 /* Try to mimic AMD BIOS rebuild/resync behavior. */
1767 if (rebuild_lba64 != UINT64_MAX) {
1769 meta->magic_3 = 0x03040010UL; /* Rebuild? */
1771 meta->magic_3 = 0x03040008UL; /* Resync? */
1772 /* Translate from per-disk to per-volume LBA. */
1773 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1 ||
1774 vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) {
1775 rebuild_lba64 *= meta->array_width;
1776 } else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID3 ||
1777 vol->v_raid_level == G_RAID_VOLUME_RL_RAID5) {
1778 rebuild_lba64 *= meta->array_width - 1;
1782 meta->magic_3 = 0x03000000UL;
1783 meta->rebuild_lba64 = rebuild_lba64;
1784 meta->magic_4 = 0x04010101UL;
1786 /* Replace per-volume metadata with new. */
1787 if (pv->pv_meta != NULL)
1788 free(pv->pv_meta, M_MD_PROMISE);
1791 /* Copy new metadata to the disks, adding or replacing old. */
1792 for (i = 0; i < vol->v_disks_count; i++) {
1793 sd = &vol->v_subdisks[i];
1797 /* For RAID0+1 we need to translate order. */
1798 pos = promise_meta_translate_disk(vol, i);
1799 pd = (struct g_raid_md_promise_perdisk *)disk->d_md_data;
1800 for (j = 0; j < pd->pd_subdisks; j++) {
1801 if (pd->pd_meta[j]->volume_id == meta->volume_id)
1804 if (j == pd->pd_subdisks)
1806 if (pd->pd_meta[j] != NULL)
1807 free(pd->pd_meta[j], M_MD_PROMISE);
1808 pd->pd_meta[j] = promise_meta_copy(meta);
1809 pd->pd_meta[j]->disk = meta->disks[pos];
1810 pd->pd_meta[j]->disk.number = pos;
1811 pd->pd_meta[j]->disk_offset = sd->sd_offset / 512;
1812 pd->pd_meta[j]->disk_sectors = sd->sd_size / 512;
1813 if (sd->sd_state == G_RAID_SUBDISK_S_REBUILD) {
1814 pd->pd_meta[j]->rebuild_lba =
1815 sd->sd_rebuild_pos / 512;
1816 } else if (sd->sd_state < G_RAID_SUBDISK_S_REBUILD)
1817 pd->pd_meta[j]->rebuild_lba = 0;
1819 pd->pd_meta[j]->rebuild_lba = UINT32_MAX;
1824 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1825 pd = (struct g_raid_md_promise_perdisk *)disk->d_md_data;
1826 if (disk->d_state != G_RAID_DISK_S_ACTIVE)
1828 if (!pd->pd_updated)
1830 G_RAID_DEBUG(1, "Writing Promise metadata to %s",
1831 g_raid_get_diskname(disk));
1832 for (i = 0; i < pd->pd_subdisks; i++)
1833 g_raid_md_promise_print(pd->pd_meta[i]);
1834 promise_meta_write(disk->d_consumer,
1835 pd->pd_meta, pd->pd_subdisks);
1843 g_raid_md_fail_disk_promise(struct g_raid_md_object *md,
1844 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk)
1846 struct g_raid_softc *sc;
1847 struct g_raid_md_promise_perdisk *pd;
1848 struct g_raid_subdisk *sd;
1852 pd = (struct g_raid_md_promise_perdisk *)tdisk->d_md_data;
1854 /* We can't fail disk that is not a part of array now. */
1855 if (tdisk->d_state != G_RAID_DISK_S_ACTIVE)
1859 * Mark disk as failed in metadata and try to write that metadata
1860 * to the disk itself to prevent it's later resurrection as STALE.
1862 if (pd->pd_subdisks > 0 && tdisk->d_consumer != NULL)
1863 G_RAID_DEBUG(1, "Writing Promise metadata to %s",
1864 g_raid_get_diskname(tdisk));
1865 for (i = 0; i < pd->pd_subdisks; i++) {
1866 pd->pd_meta[i]->disk.flags |=
1867 PROMISE_F_DOWN | PROMISE_F_REDIR;
1868 pos = pd->pd_meta[i]->disk.number;
1869 if (pos >= 0 && pos < PROMISE_MAX_DISKS) {
1870 pd->pd_meta[i]->disks[pos].flags |=
1871 PROMISE_F_DOWN | PROMISE_F_REDIR;
1873 g_raid_md_promise_print(pd->pd_meta[i]);
1875 if (tdisk->d_consumer != NULL)
1876 promise_meta_write(tdisk->d_consumer,
1877 pd->pd_meta, pd->pd_subdisks);
1879 /* Change states. */
1880 g_raid_change_disk_state(tdisk, G_RAID_DISK_S_FAILED);
1881 TAILQ_FOREACH(sd, &tdisk->d_subdisks, sd_next) {
1882 g_raid_change_subdisk_state(sd,
1883 G_RAID_SUBDISK_S_FAILED);
1884 g_raid_event_send(sd, G_RAID_SUBDISK_E_FAILED,
1885 G_RAID_EVENT_SUBDISK);
1888 /* Write updated metadata to remaining disks. */
1889 g_raid_md_write_promise(md, NULL, NULL, tdisk);
1891 g_raid_md_promise_refill(sc);
1896 g_raid_md_free_disk_promise(struct g_raid_md_object *md,
1897 struct g_raid_disk *disk)
1899 struct g_raid_md_promise_perdisk *pd;
1902 pd = (struct g_raid_md_promise_perdisk *)disk->d_md_data;
1903 for (i = 0; i < pd->pd_subdisks; i++) {
1904 if (pd->pd_meta[i] != NULL) {
1905 free(pd->pd_meta[i], M_MD_PROMISE);
1906 pd->pd_meta[i] = NULL;
1909 free(pd, M_MD_PROMISE);
1910 disk->d_md_data = NULL;
1915 g_raid_md_free_volume_promise(struct g_raid_md_object *md,
1916 struct g_raid_volume *vol)
1918 struct g_raid_md_promise_pervolume *pv;
1920 pv = (struct g_raid_md_promise_pervolume *)vol->v_md_data;
1921 if (pv && pv->pv_meta != NULL) {
1922 free(pv->pv_meta, M_MD_PROMISE);
1925 if (pv && !pv->pv_started) {
1927 callout_stop(&pv->pv_start_co);
1933 g_raid_md_free_promise(struct g_raid_md_object *md)
1939 G_RAID_MD_DECLARE(g_raid_md_promise);