2 * Copyright (c) 2011 Alexander Motin <mav@FreeBSD.org>
3 * Copyright (c) 2000 - 2008 Søren Schmidt <sos@FreeBSD.org>
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 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
31 #include <sys/param.h>
33 #include <sys/endian.h>
34 #include <sys/kernel.h>
36 #include <sys/limits.h>
38 #include <sys/malloc.h>
39 #include <sys/mutex.h>
40 #include <sys/systm.h>
41 #include <sys/taskqueue.h>
42 #include <geom/geom.h>
43 #include "geom/raid/g_raid.h"
44 #include "g_raid_md_if.h"
46 static MALLOC_DEFINE(M_MD_SII, "md_sii_data", "GEOM_RAID SiI metadata");
48 struct sii_raid_conf {
49 uint16_t ata_params_00_53[54];
50 uint64_t total_sectors; /* 54 - 57 */
51 uint16_t ata_params_58_81[72];
52 uint16_t product_id; /* 130 */
53 uint16_t vendor_id; /* 131 */
54 uint16_t version_minor; /* 132 */
55 uint16_t version_major; /* 133 */
56 uint8_t timestamp[6]; /* 134 - 136 */
57 uint16_t strip_sectors; /* 137 */
59 uint8_t disk_number; /* 139 */
61 #define SII_T_RAID0 0x00
62 #define SII_T_RAID1 0x01
63 #define SII_T_RAID01 0x02
64 #define SII_T_SPARE 0x03
65 #define SII_T_CONCAT 0x04
66 #define SII_T_RAID5 0x10
67 #define SII_T_RESERVED 0xfd
68 #define SII_T_JBOD 0xff
70 uint8_t raid0_disks; /* 140 */
72 uint8_t raid1_disks; /* 141 */
74 uint64_t rebuild_lba; /* 142 - 145 */
75 uint32_t generation; /* 146 - 147 */
76 uint8_t disk_status; /* 148 */
77 #define SII_S_CURRENT 0x01
78 #define SII_S_REBUILD 0x02
79 #define SII_S_DROPPED 0x03
80 #define SII_S_REMOVED 0x04
83 #define SII_S_ONLINE 0x01
84 #define SII_S_AVAILABLE 0x02
86 uint8_t raid_location; /* 149 */
87 uint8_t disk_location;
88 uint8_t auto_rebuild; /* 150 */
89 #define SII_R_REBUILD 0x00
90 #define SII_R_NOREBUILD 0xff
93 uint8_t name[16]; /* 151 - 158 */
94 uint16_t checksum; /* 159 */
95 uint16_t ata_params_160_255[96];
98 struct g_raid_md_sii_perdisk {
99 struct sii_raid_conf *pd_meta;
104 struct g_raid_md_sii_object {
105 struct g_raid_md_object mdio_base;
106 uint8_t mdio_timestamp[6];
107 uint8_t mdio_location;
108 uint32_t mdio_generation;
109 struct sii_raid_conf *mdio_meta;
110 struct callout mdio_start_co; /* STARTING state timer. */
111 int mdio_total_disks;
112 int mdio_disks_present;
115 struct root_hold_token *mdio_rootmount; /* Root mount delay token. */
118 static g_raid_md_create_t g_raid_md_create_sii;
119 static g_raid_md_taste_t g_raid_md_taste_sii;
120 static g_raid_md_event_t g_raid_md_event_sii;
121 static g_raid_md_ctl_t g_raid_md_ctl_sii;
122 static g_raid_md_write_t g_raid_md_write_sii;
123 static g_raid_md_fail_disk_t g_raid_md_fail_disk_sii;
124 static g_raid_md_free_disk_t g_raid_md_free_disk_sii;
125 static g_raid_md_free_t g_raid_md_free_sii;
127 static kobj_method_t g_raid_md_sii_methods[] = {
128 KOBJMETHOD(g_raid_md_create, g_raid_md_create_sii),
129 KOBJMETHOD(g_raid_md_taste, g_raid_md_taste_sii),
130 KOBJMETHOD(g_raid_md_event, g_raid_md_event_sii),
131 KOBJMETHOD(g_raid_md_ctl, g_raid_md_ctl_sii),
132 KOBJMETHOD(g_raid_md_write, g_raid_md_write_sii),
133 KOBJMETHOD(g_raid_md_fail_disk, g_raid_md_fail_disk_sii),
134 KOBJMETHOD(g_raid_md_free_disk, g_raid_md_free_disk_sii),
135 KOBJMETHOD(g_raid_md_free, g_raid_md_free_sii),
139 static struct g_raid_md_class g_raid_md_sii_class = {
141 g_raid_md_sii_methods,
142 sizeof(struct g_raid_md_sii_object),
148 g_raid_md_sii_print(struct sii_raid_conf *meta)
151 if (g_raid_debug < 1)
154 printf("********* ATA SiI RAID Metadata *********\n");
155 printf("total_sectors %llu\n",
156 (long long unsigned)meta->total_sectors);
157 printf("product_id 0x%04x\n", meta->product_id);
158 printf("vendor_id 0x%04x\n", meta->vendor_id);
159 printf("version_minor 0x%04x\n", meta->version_minor);
160 printf("version_major 0x%04x\n", meta->version_major);
161 printf("timestamp 0x%02x%02x%02x%02x%02x%02x\n",
162 meta->timestamp[5], meta->timestamp[4], meta->timestamp[3],
163 meta->timestamp[2], meta->timestamp[1], meta->timestamp[0]);
164 printf("strip_sectors %d\n", meta->strip_sectors);
165 printf("disk_number %d\n", meta->disk_number);
166 printf("type 0x%02x\n", meta->type);
167 printf("raid0_disks %d\n", meta->raid0_disks);
168 printf("raid0_ident %d\n", meta->raid0_ident);
169 printf("raid1_disks %d\n", meta->raid1_disks);
170 printf("raid1_ident %d\n", meta->raid1_ident);
171 printf("rebuild_lba %llu\n",
172 (long long unsigned)meta->rebuild_lba);
173 printf("generation %d\n", meta->generation);
174 printf("disk_status %d\n", meta->disk_status);
175 printf("raid_status %d\n", meta->raid_status);
176 printf("raid_location %d\n", meta->raid_location);
177 printf("disk_location %d\n", meta->disk_location);
178 printf("auto_rebuild %d\n", meta->auto_rebuild);
179 printf("name <%.16s>\n", meta->name);
180 printf("checksum 0x%04x\n", meta->checksum);
181 printf("=================================================\n");
184 static struct sii_raid_conf *
185 sii_meta_copy(struct sii_raid_conf *meta)
187 struct sii_raid_conf *nmeta;
189 nmeta = malloc(sizeof(*meta), M_MD_SII, M_WAITOK);
190 memcpy(nmeta, meta, sizeof(*meta));
195 sii_meta_total_disks(struct sii_raid_conf *meta)
198 switch (meta->type) {
202 return (meta->raid0_disks);
204 return (meta->raid1_disks);
206 return (meta->raid0_disks * meta->raid1_disks);
215 sii_meta_disk_pos(struct sii_raid_conf *meta, struct sii_raid_conf *pdmeta)
218 if (pdmeta->type == SII_T_SPARE)
221 if (memcmp(&meta->timestamp, &pdmeta->timestamp, 6) != 0)
224 switch (pdmeta->type) {
229 return (pdmeta->disk_number);
231 return (pdmeta->raid1_ident * pdmeta->raid1_disks +
232 pdmeta->raid0_ident);
240 sii_meta_get_name(struct sii_raid_conf *meta, char *buf)
244 strncpy(buf, meta->name, 16);
246 for (i = 15; i >= 0; i--) {
254 sii_meta_put_name(struct sii_raid_conf *meta, char *buf)
257 memset(meta->name, 0x20, 16);
258 memcpy(meta->name, buf, MIN(strlen(buf), 16));
261 static struct sii_raid_conf *
262 sii_meta_read(struct g_consumer *cp)
264 struct g_provider *pp;
265 struct sii_raid_conf *meta;
268 uint16_t checksum, *ptr;
272 /* Read the anchor sector. */
273 buf = g_read_data(cp,
274 pp->mediasize - pp->sectorsize, pp->sectorsize, &error);
276 G_RAID_DEBUG(1, "Cannot read metadata from %s (error=%d).",
280 meta = (struct sii_raid_conf *)buf;
282 /* Check vendor ID. */
283 if (meta->vendor_id != 0x1095) {
284 G_RAID_DEBUG(1, "SiI vendor ID check failed on %s (0x%04x)",
285 pp->name, meta->vendor_id);
290 /* Check metadata major version. */
291 if (meta->version_major != 2) {
292 G_RAID_DEBUG(1, "SiI version check failed on %s (%d.%d)",
293 pp->name, meta->version_major, meta->version_minor);
297 meta = malloc(sizeof(*meta), M_MD_SII, M_WAITOK);
298 memcpy(meta, buf, min(sizeof(*meta), pp->sectorsize));
301 /* Check metadata checksum. */
302 for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i <= 159; i++)
305 G_RAID_DEBUG(1, "SiI checksum check failed on %s", pp->name);
306 free(meta, M_MD_SII);
310 /* Check raid type. */
311 if (meta->type != SII_T_RAID0 && meta->type != SII_T_RAID1 &&
312 meta->type != SII_T_RAID01 && meta->type != SII_T_SPARE &&
313 meta->type != SII_T_RAID5 && meta->type != SII_T_CONCAT &&
314 meta->type != SII_T_JBOD) {
315 G_RAID_DEBUG(1, "SiI unknown RAID level on %s (0x%02x)",
316 pp->name, meta->type);
317 free(meta, M_MD_SII);
325 sii_meta_write(struct g_consumer *cp, struct sii_raid_conf *meta)
327 struct g_provider *pp;
330 uint16_t checksum, *ptr;
334 /* Recalculate checksum for case if metadata were changed. */
336 for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i < 159; i++)
338 meta->checksum -= checksum;
340 /* Create and fill buffer. */
341 buf = malloc(pp->sectorsize, M_MD_SII, M_WAITOK | M_ZERO);
342 memcpy(buf, meta, sizeof(*meta));
344 /* Write 4 copies of metadata. */
345 for (i = 0; i < 4; i++) {
346 error = g_write_data(cp,
347 pp->mediasize - (pp->sectorsize * (1 + 0x200 * i)),
348 buf, pp->sectorsize);
350 G_RAID_DEBUG(1, "Cannot write metadata to %s (error=%d).",
361 sii_meta_erase(struct g_consumer *cp)
363 struct g_provider *pp;
368 buf = malloc(pp->sectorsize, M_MD_SII, M_WAITOK | M_ZERO);
369 /* Write 4 copies of metadata. */
370 for (i = 0; i < 4; i++) {
371 error = g_write_data(cp,
372 pp->mediasize - (pp->sectorsize * (1 + 0x200 * i)),
373 buf, pp->sectorsize);
375 G_RAID_DEBUG(1, "Cannot erase metadata on %s (error=%d).",
384 sii_meta_write_spare(struct g_consumer *cp)
386 struct sii_raid_conf *meta;
389 meta = malloc(sizeof(*meta), M_MD_SII, M_WAITOK | M_ZERO);
390 meta->total_sectors = cp->provider->mediasize /
391 cp->provider->sectorsize - 0x800;
392 meta->vendor_id = 0x1095;
393 meta->version_minor = 0;
394 meta->version_major = 2;
395 meta->timestamp[0] = arc4random();
396 meta->timestamp[1] = arc4random();
397 meta->timestamp[2] = arc4random();
398 meta->timestamp[3] = arc4random();
399 meta->timestamp[4] = arc4random();
400 meta->timestamp[5] = arc4random();
401 meta->type = SII_T_SPARE;
402 meta->generation = 1;
403 meta->raid1_ident = 0xff;
404 meta->raid_location = arc4random();
405 error = sii_meta_write(cp, meta);
406 free(meta, M_MD_SII);
410 static struct g_raid_disk *
411 g_raid_md_sii_get_disk(struct g_raid_softc *sc, int id)
413 struct g_raid_disk *disk;
414 struct g_raid_md_sii_perdisk *pd;
416 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
417 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
418 if (pd->pd_disk_pos == id)
425 g_raid_md_sii_supported(int level, int qual, int disks, int force)
431 case G_RAID_VOLUME_RL_RAID0:
434 if (!force && (disks < 2 || disks > 6))
437 case G_RAID_VOLUME_RL_RAID1:
440 if (!force && (disks != 2))
443 case G_RAID_VOLUME_RL_RAID1E:
448 if (!force && (disks < 4))
451 case G_RAID_VOLUME_RL_SINGLE:
455 case G_RAID_VOLUME_RL_CONCAT:
459 case G_RAID_VOLUME_RL_RAID5:
462 if (qual != G_RAID_VOLUME_RLQ_R5LS)
468 if (level != G_RAID_VOLUME_RL_RAID5 && qual != G_RAID_VOLUME_RLQ_NONE)
474 g_raid_md_sii_start_disk(struct g_raid_disk *disk)
476 struct g_raid_softc *sc;
477 struct g_raid_subdisk *sd, *tmpsd;
478 struct g_raid_disk *olddisk, *tmpdisk;
479 struct g_raid_md_object *md;
480 struct g_raid_md_sii_object *mdi;
481 struct g_raid_md_sii_perdisk *pd, *oldpd;
482 struct sii_raid_conf *meta;
483 int disk_pos, resurrection = 0;
487 mdi = (struct g_raid_md_sii_object *)md;
488 meta = mdi->mdio_meta;
489 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
492 /* Find disk position in metadata by it's serial. */
493 if (pd->pd_meta != NULL)
494 disk_pos = sii_meta_disk_pos(meta, pd->pd_meta);
498 G_RAID_DEBUG1(1, sc, "Unknown, probably new or stale disk");
499 /* If we are in the start process, that's all for now. */
500 if (!mdi->mdio_started)
503 * If we have already started - try to get use of the disk.
504 * Try to replace OFFLINE disks first, then FAILED.
506 TAILQ_FOREACH(tmpdisk, &sc->sc_disks, d_next) {
507 if (tmpdisk->d_state != G_RAID_DISK_S_OFFLINE &&
508 tmpdisk->d_state != G_RAID_DISK_S_FAILED)
510 /* Make sure this disk is big enough. */
511 TAILQ_FOREACH(sd, &tmpdisk->d_subdisks, sd_next) {
512 if (sd->sd_offset + sd->sd_size + 512 >
515 "Disk too small (%ju < %ju)",
517 sd->sd_offset + sd->sd_size + 512);
523 if (tmpdisk->d_state == G_RAID_DISK_S_OFFLINE) {
526 } else if (olddisk == NULL)
529 if (olddisk == NULL) {
531 if (disk_pos == -3 || pd->pd_disk_pos == -3) {
532 g_raid_change_disk_state(disk,
533 G_RAID_DISK_S_SPARE);
536 g_raid_change_disk_state(disk,
537 G_RAID_DISK_S_STALE);
541 oldpd = (struct g_raid_md_sii_perdisk *)olddisk->d_md_data;
542 disk_pos = oldpd->pd_disk_pos;
546 if (olddisk == NULL) {
547 /* Find placeholder by position. */
548 olddisk = g_raid_md_sii_get_disk(sc, disk_pos);
550 panic("No disk at position %d!", disk_pos);
551 if (olddisk->d_state != G_RAID_DISK_S_OFFLINE) {
552 G_RAID_DEBUG1(1, sc, "More than one disk for pos %d",
554 g_raid_change_disk_state(disk, G_RAID_DISK_S_STALE);
557 oldpd = (struct g_raid_md_sii_perdisk *)olddisk->d_md_data;
560 /* Replace failed disk or placeholder with new disk. */
561 TAILQ_FOREACH_SAFE(sd, &olddisk->d_subdisks, sd_next, tmpsd) {
562 TAILQ_REMOVE(&olddisk->d_subdisks, sd, sd_next);
563 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next);
566 oldpd->pd_disk_pos = -2;
567 pd->pd_disk_pos = disk_pos;
569 /* If it was placeholder -- destroy it. */
570 if (olddisk->d_state == G_RAID_DISK_S_OFFLINE) {
571 g_raid_destroy_disk(olddisk);
573 /* Otherwise, make it STALE_FAILED. */
574 g_raid_change_disk_state(olddisk, G_RAID_DISK_S_STALE_FAILED);
577 /* Welcome the new disk. */
579 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE);
580 else if (pd->pd_meta->disk_status == SII_S_CURRENT ||
581 pd->pd_meta->disk_status == SII_S_REBUILD)
582 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE);
584 g_raid_change_disk_state(disk, G_RAID_DISK_S_FAILED);
585 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) {
588 * Different disks may have different sizes,
589 * in concat mode. Update from real disk size.
591 if (meta->type == SII_T_CONCAT || meta->type == SII_T_JBOD)
592 sd->sd_size = pd->pd_disk_size - 0x800 * 512;
595 /* New or ex-spare disk. */
596 g_raid_change_subdisk_state(sd,
597 G_RAID_SUBDISK_S_NEW);
598 } else if (pd->pd_meta->disk_status == SII_S_REBUILD) {
599 /* Rebuilding disk. */
600 g_raid_change_subdisk_state(sd,
601 G_RAID_SUBDISK_S_REBUILD);
602 if (pd->pd_meta->generation == meta->generation)
603 sd->sd_rebuild_pos = pd->pd_meta->rebuild_lba * 512;
605 sd->sd_rebuild_pos = 0;
606 } else if (pd->pd_meta->disk_status == SII_S_CURRENT) {
607 if (pd->pd_meta->raid_status == SII_S_ONLINE ||
608 pd->pd_meta->generation != meta->generation) {
609 /* Dirty or resyncing disk. */
610 g_raid_change_subdisk_state(sd,
611 G_RAID_SUBDISK_S_STALE);
613 /* Up to date disk. */
614 g_raid_change_subdisk_state(sd,
615 G_RAID_SUBDISK_S_ACTIVE);
618 g_raid_change_subdisk_state(sd,
619 G_RAID_SUBDISK_S_FAILED);
621 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW,
622 G_RAID_EVENT_SUBDISK);
625 /* Update status of our need for spare. */
626 if (mdi->mdio_started) {
627 mdi->mdio_incomplete =
628 (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) <
629 mdi->mdio_total_disks);
632 return (resurrection);
636 g_disk_md_sii_retaste(void *arg, int pending)
639 G_RAID_DEBUG(1, "Array is not complete, trying to retaste.");
640 g_retaste(&g_raid_class);
645 g_raid_md_sii_refill(struct g_raid_softc *sc)
647 struct g_raid_md_object *md;
648 struct g_raid_md_sii_object *mdi;
649 struct g_raid_disk *disk;
654 mdi = (struct g_raid_md_sii_object *)md;
657 /* Make sure we miss anything. */
658 na = g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE);
659 if (na == mdi->mdio_total_disks)
662 G_RAID_DEBUG1(1, md->mdo_softc,
663 "Array is not complete (%d of %d), "
664 "trying to refill.", na, mdi->mdio_total_disks);
666 /* Try to get use some of STALE disks. */
667 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
668 if (disk->d_state == G_RAID_DISK_S_STALE) {
669 update += g_raid_md_sii_start_disk(disk);
670 if (disk->d_state == G_RAID_DISK_S_ACTIVE)
677 /* Try to get use some of SPARE disks. */
678 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
679 if (disk->d_state == G_RAID_DISK_S_SPARE) {
680 update += g_raid_md_sii_start_disk(disk);
681 if (disk->d_state == G_RAID_DISK_S_ACTIVE)
685 } while (disk != NULL);
687 /* Write new metadata if we changed something. */
689 g_raid_md_write_sii(md, NULL, NULL, NULL);
691 /* Update status of our need for spare. */
692 mdi->mdio_incomplete = (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) <
693 mdi->mdio_total_disks);
695 /* Request retaste hoping to find spare. */
696 if (mdi->mdio_incomplete) {
697 task = malloc(sizeof(struct task),
698 M_MD_SII, M_WAITOK | M_ZERO);
699 TASK_INIT(task, 0, g_disk_md_sii_retaste, task);
700 taskqueue_enqueue(taskqueue_swi, task);
705 g_raid_md_sii_start(struct g_raid_softc *sc)
707 struct g_raid_md_object *md;
708 struct g_raid_md_sii_object *mdi;
709 struct g_raid_md_sii_perdisk *pd;
710 struct sii_raid_conf *meta;
711 struct g_raid_volume *vol;
712 struct g_raid_subdisk *sd;
713 struct g_raid_disk *disk, *best;
716 uint32_t gendiff, bestgendiff;
720 mdi = (struct g_raid_md_sii_object *)md;
721 meta = mdi->mdio_meta;
723 /* Create volumes and subdisks. */
724 sii_meta_get_name(meta, buf);
725 vol = g_raid_create_volume(sc, buf, -1);
726 vol->v_mediasize = (off_t)meta->total_sectors * 512;
727 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_NONE;
728 if (meta->type == SII_T_RAID0) {
729 vol->v_raid_level = G_RAID_VOLUME_RL_RAID0;
730 size = vol->v_mediasize / mdi->mdio_total_disks;
731 } else if (meta->type == SII_T_RAID1) {
732 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1;
733 size = vol->v_mediasize;
734 } else if (meta->type == SII_T_RAID01) {
735 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1E;
736 size = vol->v_mediasize / (mdi->mdio_total_disks / 2);
737 } else if (meta->type == SII_T_CONCAT) {
738 if (mdi->mdio_total_disks == 1)
739 vol->v_raid_level = G_RAID_VOLUME_RL_SINGLE;
741 vol->v_raid_level = G_RAID_VOLUME_RL_CONCAT;
743 } else if (meta->type == SII_T_RAID5) {
744 vol->v_raid_level = G_RAID_VOLUME_RL_RAID5;
745 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_R5LS;
746 size = vol->v_mediasize / (mdi->mdio_total_disks - 1);
747 } else if (meta->type == SII_T_JBOD) {
748 vol->v_raid_level = G_RAID_VOLUME_RL_SINGLE;
751 vol->v_raid_level = G_RAID_VOLUME_RL_UNKNOWN;
754 vol->v_strip_size = meta->strip_sectors * 512; //ZZZ
755 vol->v_disks_count = mdi->mdio_total_disks;
756 vol->v_sectorsize = 512; //ZZZ
757 for (j = 0; j < vol->v_disks_count; j++) {
758 sd = &vol->v_subdisks[j];
762 g_raid_start_volume(vol);
764 /* Create disk placeholders to store data for later writing. */
765 for (disk_pos = 0; disk_pos < mdi->mdio_total_disks; disk_pos++) {
766 pd = malloc(sizeof(*pd), M_MD_SII, M_WAITOK | M_ZERO);
767 pd->pd_disk_pos = disk_pos;
768 disk = g_raid_create_disk(sc);
769 disk->d_md_data = (void *)pd;
770 disk->d_state = G_RAID_DISK_S_OFFLINE;
771 sd = &vol->v_subdisks[disk_pos];
773 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next);
777 * Make all disks found till the moment take their places
778 * in order of their generation numbers.
782 bestgendiff = 0xffffffff;
783 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
784 if (disk->d_state != G_RAID_DISK_S_NONE)
786 pd = disk->d_md_data;
787 if (pd->pd_meta == NULL)
788 gendiff = 0xfffffffe;
790 gendiff = meta->generation -
791 pd->pd_meta->generation;
792 if (gendiff < bestgendiff) {
794 bestgendiff = gendiff;
798 g_raid_md_sii_start_disk(best);
799 } while (best != NULL);
801 mdi->mdio_started = 1;
802 G_RAID_DEBUG1(0, sc, "Array started.");
803 g_raid_md_write_sii(md, NULL, NULL, NULL);
805 /* Pickup any STALE/SPARE disks to refill array if needed. */
806 g_raid_md_sii_refill(sc);
808 g_raid_event_send(vol, G_RAID_VOLUME_E_START, G_RAID_EVENT_VOLUME);
810 callout_stop(&mdi->mdio_start_co);
811 G_RAID_DEBUG1(1, sc, "root_mount_rel %p", mdi->mdio_rootmount);
812 root_mount_rel(mdi->mdio_rootmount);
813 mdi->mdio_rootmount = NULL;
817 g_raid_md_sii_new_disk(struct g_raid_disk *disk)
819 struct g_raid_softc *sc;
820 struct g_raid_md_object *md;
821 struct g_raid_md_sii_object *mdi;
822 struct sii_raid_conf *pdmeta;
823 struct g_raid_md_sii_perdisk *pd;
827 mdi = (struct g_raid_md_sii_object *)md;
828 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
829 pdmeta = pd->pd_meta;
831 if (mdi->mdio_started) {
832 if (g_raid_md_sii_start_disk(disk))
833 g_raid_md_write_sii(md, NULL, NULL, NULL);
835 if (mdi->mdio_meta == NULL ||
836 ((int32_t)(pdmeta->generation - mdi->mdio_generation)) > 0) {
837 G_RAID_DEBUG1(1, sc, "Newer disk");
838 if (mdi->mdio_meta != NULL)
839 free(mdi->mdio_meta, M_MD_SII);
840 mdi->mdio_meta = sii_meta_copy(pdmeta);
841 mdi->mdio_generation = mdi->mdio_meta->generation;
842 mdi->mdio_total_disks = sii_meta_total_disks(pdmeta);
843 mdi->mdio_disks_present = 1;
844 } else if (pdmeta->generation == mdi->mdio_generation) {
845 mdi->mdio_disks_present++;
846 G_RAID_DEBUG1(1, sc, "Matching disk (%d of %d up)",
847 mdi->mdio_disks_present,
848 mdi->mdio_total_disks);
850 G_RAID_DEBUG1(1, sc, "Older disk");
853 /* If we collected all needed disks - start array. */
854 if (mdi->mdio_disks_present == mdi->mdio_total_disks)
855 g_raid_md_sii_start(sc);
860 g_raid_sii_go(void *arg)
862 struct g_raid_softc *sc;
863 struct g_raid_md_object *md;
864 struct g_raid_md_sii_object *mdi;
868 mdi = (struct g_raid_md_sii_object *)md;
869 if (!mdi->mdio_started) {
870 G_RAID_DEBUG1(0, sc, "Force array start due to timeout.");
871 g_raid_event_send(sc, G_RAID_NODE_E_START, 0);
876 g_raid_md_create_sii(struct g_raid_md_object *md, struct g_class *mp,
879 struct g_raid_softc *sc;
880 struct g_raid_md_sii_object *mdi;
883 mdi = (struct g_raid_md_sii_object *)md;
884 mdi->mdio_timestamp[5] = arc4random();
885 mdi->mdio_timestamp[4] = arc4random();
886 mdi->mdio_timestamp[3] = arc4random();
887 mdi->mdio_timestamp[2] = arc4random();
888 mdi->mdio_timestamp[1] = arc4random();
889 mdi->mdio_timestamp[0] = arc4random();
890 mdi->mdio_location = arc4random();
891 mdi->mdio_generation = 0;
892 snprintf(name, sizeof(name), "SiI-%02x%02x%02x%02x%02x%02x",
893 mdi->mdio_timestamp[5], mdi->mdio_timestamp[4],
894 mdi->mdio_timestamp[3], mdi->mdio_timestamp[2],
895 mdi->mdio_timestamp[1], mdi->mdio_timestamp[0]);
896 sc = g_raid_create_node(mp, name, md);
898 return (G_RAID_MD_TASTE_FAIL);
901 return (G_RAID_MD_TASTE_NEW);
905 g_raid_md_taste_sii(struct g_raid_md_object *md, struct g_class *mp,
906 struct g_consumer *cp, struct g_geom **gp)
908 struct g_consumer *rcp;
909 struct g_provider *pp;
910 struct g_raid_md_sii_object *mdi, *mdi1;
911 struct g_raid_softc *sc;
912 struct g_raid_disk *disk;
913 struct sii_raid_conf *meta;
914 struct g_raid_md_sii_perdisk *pd;
916 int disk_pos, result, spare, len;
920 G_RAID_DEBUG(1, "Tasting SiI on %s", cp->provider->name);
921 mdi = (struct g_raid_md_sii_object *)md;
924 /* Read metadata from device. */
928 len = sizeof(vendor);
929 if (pp->geom->rank == 1)
930 g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor);
931 meta = sii_meta_read(cp);
934 if (g_raid_aggressive_spare) {
935 if (vendor == 0x1095) {
937 "No SiI metadata, forcing spare.");
942 "SiI vendor mismatch 0x%04x != 0x1095",
946 return (G_RAID_MD_TASTE_FAIL);
949 /* Check this disk position in obtained metadata. */
950 disk_pos = sii_meta_disk_pos(meta, meta);
951 if (disk_pos == -1) {
952 G_RAID_DEBUG(1, "SiI disk position not found");
956 /* Metadata valid. Print it. */
957 g_raid_md_sii_print(meta);
958 G_RAID_DEBUG(1, "SiI disk position %d", disk_pos);
959 spare = (meta->type == SII_T_SPARE) ? 1 : 0;
962 /* Search for matching node. */
965 LIST_FOREACH(geom, &mp->geom, geom) {
969 if (sc->sc_stopping != 0)
971 if (sc->sc_md->mdo_class != md->mdo_class)
973 mdi1 = (struct g_raid_md_sii_object *)sc->sc_md;
975 if (mdi1->mdio_incomplete)
978 if (mdi1->mdio_location == meta->raid_location &&
979 memcmp(&mdi1->mdio_timestamp,
980 &meta->timestamp, 6) == 0)
985 /* Found matching node. */
987 G_RAID_DEBUG(1, "Found matching array %s", sc->sc_name);
988 result = G_RAID_MD_TASTE_EXISTING;
990 } else if (spare) { /* Not found needy node -- left for later. */
991 G_RAID_DEBUG(1, "Spare is not needed at this time");
994 } else { /* Not found matching node -- create one. */
995 result = G_RAID_MD_TASTE_NEW;
996 memcpy(&mdi->mdio_timestamp, &meta->timestamp, 6);
997 mdi->mdio_location = meta->raid_location;
998 snprintf(name, sizeof(name), "SiI-%02x%02x%02x%02x%02x%02x",
999 mdi->mdio_timestamp[5], mdi->mdio_timestamp[4],
1000 mdi->mdio_timestamp[3], mdi->mdio_timestamp[2],
1001 mdi->mdio_timestamp[1], mdi->mdio_timestamp[0]);
1002 sc = g_raid_create_node(mp, name, md);
1005 callout_init(&mdi->mdio_start_co, 1);
1006 callout_reset(&mdi->mdio_start_co, g_raid_start_timeout * hz,
1008 mdi->mdio_rootmount = root_mount_hold("GRAID-SiI");
1009 G_RAID_DEBUG1(1, sc, "root_mount_hold %p", mdi->mdio_rootmount);
1012 /* There is no return after this point, so we close passed consumer. */
1013 g_access(cp, -1, 0, 0);
1015 rcp = g_new_consumer(geom);
1016 rcp->flags |= G_CF_DIRECT_RECEIVE;
1018 if (g_access(rcp, 1, 1, 1) != 0)
1021 g_topology_unlock();
1022 sx_xlock(&sc->sc_lock);
1024 pd = malloc(sizeof(*pd), M_MD_SII, M_WAITOK | M_ZERO);
1027 pd->pd_disk_pos = -3;
1029 pd->pd_disk_pos = -1;
1031 pd->pd_disk_size = pp->mediasize;
1032 disk = g_raid_create_disk(sc);
1033 disk->d_md_data = (void *)pd;
1034 disk->d_consumer = rcp;
1035 rcp->private = disk;
1037 g_raid_get_disk_info(disk);
1039 g_raid_md_sii_new_disk(disk);
1041 sx_xunlock(&sc->sc_lock);
1046 free(meta, M_MD_SII);
1047 return (G_RAID_MD_TASTE_FAIL);
1051 g_raid_md_event_sii(struct g_raid_md_object *md,
1052 struct g_raid_disk *disk, u_int event)
1054 struct g_raid_softc *sc;
1055 struct g_raid_subdisk *sd;
1056 struct g_raid_md_sii_object *mdi;
1057 struct g_raid_md_sii_perdisk *pd;
1060 mdi = (struct g_raid_md_sii_object *)md;
1063 case G_RAID_NODE_E_START:
1064 if (!mdi->mdio_started)
1065 g_raid_md_sii_start(sc);
1070 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
1072 case G_RAID_DISK_E_DISCONNECTED:
1073 /* If disk was assigned, just update statuses. */
1074 if (pd->pd_disk_pos >= 0) {
1075 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE);
1076 if (disk->d_consumer) {
1077 g_raid_kill_consumer(sc, disk->d_consumer);
1078 disk->d_consumer = NULL;
1080 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) {
1081 g_raid_change_subdisk_state(sd,
1082 G_RAID_SUBDISK_S_NONE);
1083 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED,
1084 G_RAID_EVENT_SUBDISK);
1087 /* Otherwise -- delete. */
1088 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE);
1089 g_raid_destroy_disk(disk);
1092 /* Write updated metadata to all disks. */
1093 g_raid_md_write_sii(md, NULL, NULL, NULL);
1095 /* Check if anything left except placeholders. */
1096 if (g_raid_ndisks(sc, -1) ==
1097 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE))
1098 g_raid_destroy_node(sc, 0);
1100 g_raid_md_sii_refill(sc);
1107 g_raid_md_ctl_sii(struct g_raid_md_object *md,
1108 struct gctl_req *req)
1110 struct g_raid_softc *sc;
1111 struct g_raid_volume *vol;
1112 struct g_raid_subdisk *sd;
1113 struct g_raid_disk *disk;
1114 struct g_raid_md_sii_object *mdi;
1115 struct g_raid_md_sii_perdisk *pd;
1116 struct g_consumer *cp;
1117 struct g_provider *pp;
1119 const char *verb, *volname, *levelname, *diskname;
1121 off_t size, sectorsize, strip;
1122 intmax_t *sizearg, *striparg;
1123 int numdisks, i, len, level, qual, update;
1127 mdi = (struct g_raid_md_sii_object *)md;
1128 verb = gctl_get_param(req, "verb", NULL);
1129 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
1131 if (strcmp(verb, "label") == 0) {
1134 gctl_error(req, "Invalid number of arguments.");
1137 volname = gctl_get_asciiparam(req, "arg1");
1138 if (volname == NULL) {
1139 gctl_error(req, "No volume name.");
1142 levelname = gctl_get_asciiparam(req, "arg2");
1143 if (levelname == NULL) {
1144 gctl_error(req, "No RAID level.");
1147 if (strcasecmp(levelname, "RAID5") == 0)
1148 levelname = "RAID5-LS";
1149 if (g_raid_volume_str2level(levelname, &level, &qual)) {
1150 gctl_error(req, "Unknown RAID level '%s'.", levelname);
1153 numdisks = *nargs - 3;
1154 force = gctl_get_paraml(req, "force", sizeof(*force));
1155 if (!g_raid_md_sii_supported(level, qual, numdisks,
1156 force ? *force : 0)) {
1157 gctl_error(req, "Unsupported RAID level "
1158 "(0x%02x/0x%02x), or number of disks (%d).",
1159 level, qual, numdisks);
1163 /* Search for disks, connect them and probe. */
1164 size = 0x7fffffffffffffffllu;
1166 for (i = 0; i < numdisks; i++) {
1167 snprintf(arg, sizeof(arg), "arg%d", i + 3);
1168 diskname = gctl_get_asciiparam(req, arg);
1169 if (diskname == NULL) {
1170 gctl_error(req, "No disk name (%s).", arg);
1174 if (strcmp(diskname, "NONE") == 0) {
1179 cp = g_raid_open_consumer(sc, diskname);
1181 gctl_error(req, "Can't open '%s'.",
1183 g_topology_unlock();
1189 pd = malloc(sizeof(*pd), M_MD_SII, M_WAITOK | M_ZERO);
1190 pd->pd_disk_pos = i;
1191 disk = g_raid_create_disk(sc);
1192 disk->d_md_data = (void *)pd;
1193 disk->d_consumer = cp;
1197 g_topology_unlock();
1199 g_raid_get_disk_info(disk);
1201 pd->pd_disk_size = pp->mediasize;
1202 if (size > pp->mediasize)
1203 size = pp->mediasize;
1204 if (sectorsize < pp->sectorsize)
1205 sectorsize = pp->sectorsize;
1210 if (sectorsize <= 0) {
1211 gctl_error(req, "Can't get sector size.");
1215 /* Reserve space for metadata. */
1216 size -= 0x800 * sectorsize;
1218 /* Handle size argument. */
1219 len = sizeof(*sizearg);
1220 sizearg = gctl_get_param(req, "size", &len);
1221 if (sizearg != NULL && len == sizeof(*sizearg) &&
1223 if (*sizearg > size) {
1224 gctl_error(req, "Size too big %lld > %lld.",
1225 (long long)*sizearg, (long long)size);
1231 /* Handle strip argument. */
1233 len = sizeof(*striparg);
1234 striparg = gctl_get_param(req, "strip", &len);
1235 if (striparg != NULL && len == sizeof(*striparg) &&
1237 if (*striparg < sectorsize) {
1238 gctl_error(req, "Strip size too small.");
1241 if (*striparg % sectorsize != 0) {
1242 gctl_error(req, "Incorrect strip size.");
1245 if (strip > 65535 * sectorsize) {
1246 gctl_error(req, "Strip size too big.");
1252 /* Round size down to strip or sector. */
1253 if (level == G_RAID_VOLUME_RL_RAID1)
1254 size -= (size % sectorsize);
1255 else if (level == G_RAID_VOLUME_RL_RAID1E &&
1256 (numdisks & 1) != 0)
1257 size -= (size % (2 * strip));
1259 size -= (size % strip);
1261 gctl_error(req, "Size too small.");
1264 if (size > 0xffffffffffffllu * sectorsize) {
1265 gctl_error(req, "Size too big.");
1269 /* We have all we need, create things: volume, ... */
1270 mdi->mdio_total_disks = numdisks;
1271 mdi->mdio_started = 1;
1272 vol = g_raid_create_volume(sc, volname, -1);
1273 vol->v_md_data = (void *)(intptr_t)0;
1274 vol->v_raid_level = level;
1275 vol->v_raid_level_qualifier = qual;
1276 vol->v_strip_size = strip;
1277 vol->v_disks_count = numdisks;
1278 if (level == G_RAID_VOLUME_RL_RAID0 ||
1279 level == G_RAID_VOLUME_RL_CONCAT ||
1280 level == G_RAID_VOLUME_RL_SINGLE)
1281 vol->v_mediasize = size * numdisks;
1282 else if (level == G_RAID_VOLUME_RL_RAID1)
1283 vol->v_mediasize = size;
1284 else if (level == G_RAID_VOLUME_RL_RAID5)
1285 vol->v_mediasize = size * (numdisks - 1);
1287 vol->v_mediasize = ((size * numdisks) / strip / 2) *
1290 vol->v_sectorsize = sectorsize;
1291 g_raid_start_volume(vol);
1293 /* , and subdisks. */
1294 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1295 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
1296 sd = &vol->v_subdisks[pd->pd_disk_pos];
1300 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next);
1301 if (sd->sd_disk->d_consumer != NULL) {
1302 g_raid_change_disk_state(disk,
1303 G_RAID_DISK_S_ACTIVE);
1304 g_raid_change_subdisk_state(sd,
1305 G_RAID_SUBDISK_S_ACTIVE);
1306 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW,
1307 G_RAID_EVENT_SUBDISK);
1309 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE);
1313 /* Write metadata based on created entities. */
1314 G_RAID_DEBUG1(0, sc, "Array started.");
1315 g_raid_md_write_sii(md, NULL, NULL, NULL);
1317 /* Pickup any STALE/SPARE disks to refill array if needed. */
1318 g_raid_md_sii_refill(sc);
1320 g_raid_event_send(vol, G_RAID_VOLUME_E_START,
1321 G_RAID_EVENT_VOLUME);
1324 if (strcmp(verb, "delete") == 0) {
1326 /* Check if some volume is still open. */
1327 force = gctl_get_paraml(req, "force", sizeof(*force));
1328 if (force != NULL && *force == 0 &&
1329 g_raid_nopens(sc) != 0) {
1330 gctl_error(req, "Some volume is still open.");
1334 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1335 if (disk->d_consumer)
1336 sii_meta_erase(disk->d_consumer);
1338 g_raid_destroy_node(sc, 0);
1341 if (strcmp(verb, "remove") == 0 ||
1342 strcmp(verb, "fail") == 0) {
1344 gctl_error(req, "Invalid number of arguments.");
1347 for (i = 1; i < *nargs; i++) {
1348 snprintf(arg, sizeof(arg), "arg%d", i);
1349 diskname = gctl_get_asciiparam(req, arg);
1350 if (diskname == NULL) {
1351 gctl_error(req, "No disk name (%s).", arg);
1355 if (strncmp(diskname, "/dev/", 5) == 0)
1358 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1359 if (disk->d_consumer != NULL &&
1360 disk->d_consumer->provider != NULL &&
1361 strcmp(disk->d_consumer->provider->name,
1366 gctl_error(req, "Disk '%s' not found.",
1372 if (strcmp(verb, "fail") == 0) {
1373 g_raid_md_fail_disk_sii(md, NULL, disk);
1377 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
1379 /* Erase metadata on deleting disk. */
1380 sii_meta_erase(disk->d_consumer);
1382 /* If disk was assigned, just update statuses. */
1383 if (pd->pd_disk_pos >= 0) {
1384 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE);
1385 g_raid_kill_consumer(sc, disk->d_consumer);
1386 disk->d_consumer = NULL;
1387 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) {
1388 g_raid_change_subdisk_state(sd,
1389 G_RAID_SUBDISK_S_NONE);
1390 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED,
1391 G_RAID_EVENT_SUBDISK);
1394 /* Otherwise -- delete. */
1395 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE);
1396 g_raid_destroy_disk(disk);
1400 /* Write updated metadata to remaining disks. */
1401 g_raid_md_write_sii(md, NULL, NULL, NULL);
1403 /* Check if anything left except placeholders. */
1404 if (g_raid_ndisks(sc, -1) ==
1405 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE))
1406 g_raid_destroy_node(sc, 0);
1408 g_raid_md_sii_refill(sc);
1411 if (strcmp(verb, "insert") == 0) {
1413 gctl_error(req, "Invalid number of arguments.");
1417 for (i = 1; i < *nargs; i++) {
1418 /* Get disk name. */
1419 snprintf(arg, sizeof(arg), "arg%d", i);
1420 diskname = gctl_get_asciiparam(req, arg);
1421 if (diskname == NULL) {
1422 gctl_error(req, "No disk name (%s).", arg);
1427 /* Try to find provider with specified name. */
1429 cp = g_raid_open_consumer(sc, diskname);
1431 gctl_error(req, "Can't open disk '%s'.",
1433 g_topology_unlock();
1439 pd = malloc(sizeof(*pd), M_MD_SII, M_WAITOK | M_ZERO);
1440 pd->pd_disk_pos = -3;
1441 pd->pd_disk_size = pp->mediasize;
1443 disk = g_raid_create_disk(sc);
1444 disk->d_consumer = cp;
1445 disk->d_md_data = (void *)pd;
1447 g_topology_unlock();
1449 g_raid_get_disk_info(disk);
1451 /* Welcome the "new" disk. */
1452 update += g_raid_md_sii_start_disk(disk);
1453 if (disk->d_state == G_RAID_DISK_S_SPARE) {
1454 sii_meta_write_spare(cp);
1455 g_raid_destroy_disk(disk);
1456 } else if (disk->d_state != G_RAID_DISK_S_ACTIVE) {
1457 gctl_error(req, "Disk '%s' doesn't fit.",
1459 g_raid_destroy_disk(disk);
1465 /* Write new metadata if we changed something. */
1467 g_raid_md_write_sii(md, NULL, NULL, NULL);
1470 gctl_error(req, "Command '%s' is not supported.", verb);
1475 g_raid_md_write_sii(struct g_raid_md_object *md, struct g_raid_volume *tvol,
1476 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk)
1478 struct g_raid_softc *sc;
1479 struct g_raid_volume *vol;
1480 struct g_raid_subdisk *sd;
1481 struct g_raid_disk *disk;
1482 struct g_raid_md_sii_object *mdi;
1483 struct g_raid_md_sii_perdisk *pd;
1484 struct sii_raid_conf *meta;
1488 mdi = (struct g_raid_md_sii_object *)md;
1490 if (sc->sc_stopping == G_RAID_DESTROY_HARD)
1493 /* Bump generation. Newly written metadata may differ from previous. */
1494 mdi->mdio_generation++;
1496 /* There is only one volume. */
1497 vol = TAILQ_FIRST(&sc->sc_volumes);
1499 /* Fill global fields. */
1500 meta = malloc(sizeof(*meta), M_MD_SII, M_WAITOK | M_ZERO);
1502 memcpy(meta, mdi->mdio_meta, sizeof(*meta));
1503 meta->total_sectors = vol->v_mediasize / vol->v_sectorsize;
1504 meta->vendor_id = 0x1095;
1505 meta->version_minor = 0;
1506 meta->version_major = 2;
1507 memcpy(&meta->timestamp, &mdi->mdio_timestamp, 6);
1508 meta->strip_sectors = vol->v_strip_size / vol->v_sectorsize;
1509 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID0) {
1510 meta->type = SII_T_RAID0;
1511 meta->raid0_disks = vol->v_disks_count;
1512 meta->raid1_disks = 0xff;
1513 } else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) {
1514 meta->type = SII_T_RAID1;
1515 meta->raid0_disks = 0xff;
1516 meta->raid1_disks = vol->v_disks_count;
1517 } else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) {
1518 meta->type = SII_T_RAID01;
1519 meta->raid0_disks = vol->v_disks_count / 2;
1520 meta->raid1_disks = 2;
1521 } else if (vol->v_raid_level == G_RAID_VOLUME_RL_CONCAT ||
1522 vol->v_raid_level == G_RAID_VOLUME_RL_SINGLE) {
1523 meta->type = SII_T_JBOD;
1524 meta->raid0_disks = vol->v_disks_count;
1525 meta->raid1_disks = 0xff;
1527 meta->type = SII_T_RAID5;
1528 meta->raid0_disks = vol->v_disks_count;
1529 meta->raid1_disks = 0xff;
1531 meta->generation = mdi->mdio_generation;
1532 meta->raid_status = vol->v_dirty ? SII_S_ONLINE : SII_S_AVAILABLE;
1533 for (i = 0; i < vol->v_disks_count; i++) {
1534 sd = &vol->v_subdisks[i];
1535 if (sd->sd_state == G_RAID_SUBDISK_S_STALE ||
1536 sd->sd_state == G_RAID_SUBDISK_S_RESYNC)
1537 meta->raid_status = SII_S_ONLINE;
1539 meta->raid_location = mdi->mdio_location;
1540 sii_meta_put_name(meta, vol->v_name);
1542 /* We are done. Print meta data and store them to disks. */
1543 if (mdi->mdio_meta != NULL)
1544 free(mdi->mdio_meta, M_MD_SII);
1545 mdi->mdio_meta = meta;
1546 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1547 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
1548 if (disk->d_state != G_RAID_DISK_S_ACTIVE)
1550 if (pd->pd_meta != NULL) {
1551 free(pd->pd_meta, M_MD_SII);
1554 pd->pd_meta = sii_meta_copy(meta);
1555 if ((sd = TAILQ_FIRST(&disk->d_subdisks)) != NULL) {
1556 if (sd->sd_state < G_RAID_SUBDISK_S_NEW)
1557 pd->pd_meta->disk_status = SII_S_DROPPED;
1558 else if (sd->sd_state < G_RAID_SUBDISK_S_STALE) {
1559 pd->pd_meta->disk_status = SII_S_REBUILD;
1560 pd->pd_meta->rebuild_lba =
1561 sd->sd_rebuild_pos / vol->v_sectorsize;
1563 pd->pd_meta->disk_status = SII_S_CURRENT;
1564 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) {
1565 pd->pd_meta->disk_number = sd->sd_pos;
1566 pd->pd_meta->raid0_ident = 0xff;
1567 pd->pd_meta->raid1_ident = 0;
1568 } else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) {
1569 pd->pd_meta->disk_number = sd->sd_pos / meta->raid1_disks;
1570 pd->pd_meta->raid0_ident = sd->sd_pos % meta->raid1_disks;
1571 pd->pd_meta->raid1_ident = sd->sd_pos / meta->raid1_disks;
1573 pd->pd_meta->disk_number = sd->sd_pos;
1574 pd->pd_meta->raid0_ident = 0;
1575 pd->pd_meta->raid1_ident = 0xff;
1578 G_RAID_DEBUG(1, "Writing SiI metadata to %s",
1579 g_raid_get_diskname(disk));
1580 g_raid_md_sii_print(pd->pd_meta);
1581 sii_meta_write(disk->d_consumer, pd->pd_meta);
1587 g_raid_md_fail_disk_sii(struct g_raid_md_object *md,
1588 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk)
1590 struct g_raid_softc *sc;
1591 struct g_raid_md_sii_perdisk *pd;
1592 struct g_raid_subdisk *sd;
1595 pd = (struct g_raid_md_sii_perdisk *)tdisk->d_md_data;
1597 /* We can't fail disk that is not a part of array now. */
1598 if (pd->pd_disk_pos < 0)
1602 * Mark disk as failed in metadata and try to write that metadata
1603 * to the disk itself to prevent it's later resurrection as STALE.
1605 if (tdisk->d_consumer) {
1607 pd->pd_meta->disk_status = SII_S_REMOVED;
1608 sii_meta_write(tdisk->d_consumer, pd->pd_meta);
1610 sii_meta_erase(tdisk->d_consumer);
1613 /* Change states. */
1614 g_raid_change_disk_state(tdisk, G_RAID_DISK_S_FAILED);
1615 TAILQ_FOREACH(sd, &tdisk->d_subdisks, sd_next) {
1616 g_raid_change_subdisk_state(sd,
1617 G_RAID_SUBDISK_S_FAILED);
1618 g_raid_event_send(sd, G_RAID_SUBDISK_E_FAILED,
1619 G_RAID_EVENT_SUBDISK);
1622 /* Write updated metadata to remaining disks. */
1623 g_raid_md_write_sii(md, NULL, NULL, tdisk);
1625 /* Check if anything left except placeholders. */
1626 if (g_raid_ndisks(sc, -1) ==
1627 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE))
1628 g_raid_destroy_node(sc, 0);
1630 g_raid_md_sii_refill(sc);
1635 g_raid_md_free_disk_sii(struct g_raid_md_object *md,
1636 struct g_raid_disk *disk)
1638 struct g_raid_md_sii_perdisk *pd;
1640 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
1641 if (pd->pd_meta != NULL) {
1642 free(pd->pd_meta, M_MD_SII);
1646 disk->d_md_data = NULL;
1651 g_raid_md_free_sii(struct g_raid_md_object *md)
1653 struct g_raid_md_sii_object *mdi;
1655 mdi = (struct g_raid_md_sii_object *)md;
1656 if (!mdi->mdio_started) {
1657 mdi->mdio_started = 0;
1658 callout_stop(&mdi->mdio_start_co);
1659 G_RAID_DEBUG1(1, md->mdo_softc,
1660 "root_mount_rel %p", mdi->mdio_rootmount);
1661 root_mount_rel(mdi->mdio_rootmount);
1662 mdi->mdio_rootmount = NULL;
1664 if (mdi->mdio_meta != NULL) {
1665 free(mdi->mdio_meta, M_MD_SII);
1666 mdi->mdio_meta = NULL;
1671 G_RAID_MD_DECLARE(sii, "SiI");