1/*-
2 * Copyright (c) 2011 Alexander Motin <mav@FreeBSD.org>
3 * Copyright (c) 2000 - 2008 S��ren Schmidt <sos@FreeBSD.org>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
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.
14 *
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
25 * SUCH DAMAGE.
26 */
27
28#include <sys/cdefs.h>
| 1/*-
2 * Copyright (c) 2011 Alexander Motin <mav@FreeBSD.org>
3 * Copyright (c) 2000 - 2008 S��ren Schmidt <sos@FreeBSD.org>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
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.
14 *
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
25 * SUCH DAMAGE.
26 */
27
28#include <sys/cdefs.h>
|
29__FBSDID("$FreeBSD: stable/10/sys/geom/raid/md_sii.c 275926 2014-12-19 01:13:41Z mav $");
| 29__FBSDID("$FreeBSD: stable/10/sys/geom/raid/md_sii.c 279878 2015-03-11 09:50:31Z mav $");
|
30
31#include <sys/param.h>
32#include <sys/bio.h>
33#include <sys/endian.h>
34#include <sys/kernel.h>
35#include <sys/kobj.h>
36#include <sys/limits.h>
37#include <sys/lock.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"
45
46static MALLOC_DEFINE(M_MD_SII, "md_sii_data", "GEOM_RAID SiI metadata");
47
48struct 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 */
58 uint16_t dummy_2;
59 uint8_t disk_number; /* 139 */
60 uint8_t type;
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
69
70 uint8_t raid0_disks; /* 140 */
71 uint8_t raid0_ident;
72 uint8_t raid1_disks; /* 141 */
73 uint8_t raid1_ident;
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
81
82 uint8_t raid_status;
83#define SII_S_ONLINE 0x01
84#define SII_S_AVAILABLE 0x02
85
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
91
92 uint8_t dummy_3;
93 uint8_t name[16]; /* 151 - 158 */
94 uint16_t checksum; /* 159 */
95 uint16_t ata_params_160_255[96];
96} __packed;
97
98struct g_raid_md_sii_perdisk {
99 struct sii_raid_conf *pd_meta;
100 int pd_disk_pos;
101 off_t pd_disk_size;
102};
103
104struct 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;
113 int mdio_started;
114 int mdio_incomplete;
115 struct root_hold_token *mdio_rootmount; /* Root mount delay token. */
116};
117
118static g_raid_md_create_t g_raid_md_create_sii;
119static g_raid_md_taste_t g_raid_md_taste_sii;
120static g_raid_md_event_t g_raid_md_event_sii;
121static g_raid_md_ctl_t g_raid_md_ctl_sii;
122static g_raid_md_write_t g_raid_md_write_sii;
123static g_raid_md_fail_disk_t g_raid_md_fail_disk_sii;
124static g_raid_md_free_disk_t g_raid_md_free_disk_sii;
125static g_raid_md_free_t g_raid_md_free_sii;
126
127static 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),
136 { 0, 0 }
137};
138
139static struct g_raid_md_class g_raid_md_sii_class = {
140 "SiI",
141 g_raid_md_sii_methods,
142 sizeof(struct g_raid_md_sii_object),
143 .mdc_enable = 1,
144 .mdc_priority = 100
145};
146
147static void
148g_raid_md_sii_print(struct sii_raid_conf *meta)
149{
150
151 if (g_raid_debug < 1)
152 return;
153
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");
182}
183
184static struct sii_raid_conf *
185sii_meta_copy(struct sii_raid_conf *meta)
186{
187 struct sii_raid_conf *nmeta;
188
189 nmeta = malloc(sizeof(*meta), M_MD_SII, M_WAITOK);
190 memcpy(nmeta, meta, sizeof(*meta));
191 return (nmeta);
192}
193
194static int
195sii_meta_total_disks(struct sii_raid_conf *meta)
196{
197
198 switch (meta->type) {
199 case SII_T_RAID0:
200 case SII_T_RAID5:
201 case SII_T_CONCAT:
202 return (meta->raid0_disks);
203 case SII_T_RAID1:
204 return (meta->raid1_disks);
205 case SII_T_RAID01:
206 return (meta->raid0_disks * meta->raid1_disks);
207 case SII_T_SPARE:
208 case SII_T_JBOD:
209 return (1);
210 }
211 return (0);
212}
213
214static int
215sii_meta_disk_pos(struct sii_raid_conf *meta, struct sii_raid_conf *pdmeta)
216{
217
218 if (pdmeta->type == SII_T_SPARE)
219 return (-3);
220
221 if (memcmp(&meta->timestamp, &pdmeta->timestamp, 6) != 0)
222 return (-1);
223
224 switch (pdmeta->type) {
225 case SII_T_RAID0:
226 case SII_T_RAID1:
227 case SII_T_RAID5:
228 case SII_T_CONCAT:
229 return (pdmeta->disk_number);
230 case SII_T_RAID01:
231 return (pdmeta->raid1_ident * pdmeta->raid1_disks +
232 pdmeta->raid0_ident);
233 case SII_T_JBOD:
234 return (0);
235 }
236 return (-1);
237}
238
239static void
240sii_meta_get_name(struct sii_raid_conf *meta, char *buf)
241{
242 int i;
243
244 strncpy(buf, meta->name, 16);
245 buf[16] = 0;
246 for (i = 15; i >= 0; i--) {
247 if (buf[i] > 0x20)
248 break;
249 buf[i] = 0;
250 }
251}
252
253static void
254sii_meta_put_name(struct sii_raid_conf *meta, char *buf)
255{
256
257 memset(meta->name, 0x20, 16);
258 memcpy(meta->name, buf, MIN(strlen(buf), 16));
259}
260
261static struct sii_raid_conf *
262sii_meta_read(struct g_consumer *cp)
263{
264 struct g_provider *pp;
265 struct sii_raid_conf *meta;
266 char *buf;
267 int error, i;
268 uint16_t checksum, *ptr;
269
270 pp = cp->provider;
271
272 /* Read the anchor sector. */
273 buf = g_read_data(cp,
274 pp->mediasize - pp->sectorsize, pp->sectorsize, &error);
275 if (buf == NULL) {
276 G_RAID_DEBUG(1, "Cannot read metadata from %s (error=%d).",
277 pp->name, error);
278 return (NULL);
279 }
280 meta = (struct sii_raid_conf *)buf;
281
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);
286 g_free(buf);
287 return (NULL);
288 }
289
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);
294 g_free(buf);
295 return (NULL);
296 }
297 meta = malloc(sizeof(*meta), M_MD_SII, M_WAITOK);
298 memcpy(meta, buf, min(sizeof(*meta), pp->sectorsize));
299 g_free(buf);
300
301 /* Check metadata checksum. */
302 for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i <= 159; i++)
303 checksum += *ptr++;
304 if (checksum != 0) {
305 G_RAID_DEBUG(1, "SiI checksum check failed on %s", pp->name);
306 free(meta, M_MD_SII);
307 return (NULL);
308 }
309
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);
318 return (NULL);
319 }
320
321 return (meta);
322}
323
324static int
325sii_meta_write(struct g_consumer *cp, struct sii_raid_conf *meta)
326{
327 struct g_provider *pp;
328 char *buf;
329 int error, i;
330 uint16_t checksum, *ptr;
331
332 pp = cp->provider;
333
334 /* Recalculate checksum for case if metadata were changed. */
335 meta->checksum = 0;
336 for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i < 159; i++)
337 checksum += *ptr++;
338 meta->checksum -= checksum;
339
340 /* Create and fill buffer. */
341 buf = malloc(pp->sectorsize, M_MD_SII, M_WAITOK | M_ZERO);
342 memcpy(buf, meta, sizeof(*meta));
343
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);
349 if (error != 0) {
350 G_RAID_DEBUG(1, "Cannot write metadata to %s (error=%d).",
351 pp->name, error);
352 break;
353 }
354 }
355
356 free(buf, M_MD_SII);
357 return (error);
358}
359
360static int
361sii_meta_erase(struct g_consumer *cp)
362{
363 struct g_provider *pp;
364 char *buf;
365 int error, i;
366
367 pp = cp->provider;
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);
374 if (error != 0) {
375 G_RAID_DEBUG(1, "Cannot erase metadata on %s (error=%d).",
376 pp->name, error);
377 }
378 }
379 free(buf, M_MD_SII);
380 return (error);
381}
382
383static int
384sii_meta_write_spare(struct g_consumer *cp)
385{
386 struct sii_raid_conf *meta;
387 int error;
388
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);
407 return (error);
408}
409
410static struct g_raid_disk *
411g_raid_md_sii_get_disk(struct g_raid_softc *sc, int id)
412{
413 struct g_raid_disk *disk;
414 struct g_raid_md_sii_perdisk *pd;
415
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)
419 break;
420 }
421 return (disk);
422}
423
424static int
425g_raid_md_sii_supported(int level, int qual, int disks, int force)
426{
427
428 if (disks > 8)
429 return (0);
430 switch (level) {
431 case G_RAID_VOLUME_RL_RAID0:
432 if (disks < 1)
433 return (0);
434 if (!force && (disks < 2 || disks > 6))
435 return (0);
436 break;
437 case G_RAID_VOLUME_RL_RAID1:
438 if (disks < 1)
439 return (0);
440 if (!force && (disks != 2))
441 return (0);
442 break;
443 case G_RAID_VOLUME_RL_RAID1E:
444 if (disks < 2)
445 return (0);
446 if (disks % 2 != 0)
447 return (0);
448 if (!force && (disks < 4))
449 return (0);
450 break;
451 case G_RAID_VOLUME_RL_SINGLE:
452 if (disks != 1)
453 return (0);
454 break;
455 case G_RAID_VOLUME_RL_CONCAT:
456 if (disks < 2)
457 return (0);
458 break;
459 case G_RAID_VOLUME_RL_RAID5:
460 if (disks < 3)
461 return (0);
462 if (qual != G_RAID_VOLUME_RLQ_R5LS)
463 return (0);
464 break;
465 default:
466 return (0);
467 }
468 if (level != G_RAID_VOLUME_RL_RAID5 && qual != G_RAID_VOLUME_RLQ_NONE)
469 return (0);
470 return (1);
471}
472
473static int
474g_raid_md_sii_start_disk(struct g_raid_disk *disk)
475{
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;
484
485 sc = disk->d_softc;
486 md = sc->sc_md;
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;
490 olddisk = NULL;
491
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);
495 else
496 disk_pos = -3;
497 if (disk_pos < 0) {
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)
501 goto nofit;
502 /*
503 * If we have already started - try to get use of the disk.
504 * Try to replace OFFLINE disks first, then FAILED.
505 */
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)
509 continue;
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 >
513 pd->pd_disk_size) {
514 G_RAID_DEBUG1(1, sc,
515 "Disk too small (%ju < %ju)",
516 pd->pd_disk_size,
517 sd->sd_offset + sd->sd_size + 512);
518 break;
519 }
520 }
521 if (sd != NULL)
522 continue;
523 if (tmpdisk->d_state == G_RAID_DISK_S_OFFLINE) {
524 olddisk = tmpdisk;
525 break;
526 } else if (olddisk == NULL)
527 olddisk = tmpdisk;
528 }
529 if (olddisk == NULL) {
530nofit:
531 if (disk_pos == -3 || pd->pd_disk_pos == -3) {
532 g_raid_change_disk_state(disk,
533 G_RAID_DISK_S_SPARE);
534 return (1);
535 } else {
536 g_raid_change_disk_state(disk,
537 G_RAID_DISK_S_STALE);
538 return (0);
539 }
540 }
541 oldpd = (struct g_raid_md_sii_perdisk *)olddisk->d_md_data;
542 disk_pos = oldpd->pd_disk_pos;
543 resurrection = 1;
544 }
545
546 if (olddisk == NULL) {
547 /* Find placeholder by position. */
548 olddisk = g_raid_md_sii_get_disk(sc, disk_pos);
549 if (olddisk == NULL)
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 then one disk for pos %d",
553 disk_pos);
554 g_raid_change_disk_state(disk, G_RAID_DISK_S_STALE);
555 return (0);
556 }
557 oldpd = (struct g_raid_md_sii_perdisk *)olddisk->d_md_data;
558 }
559
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);
564 sd->sd_disk = disk;
565 }
566 oldpd->pd_disk_pos = -2;
567 pd->pd_disk_pos = disk_pos;
568
569 /* If it was placeholder -- destroy it. */
570 if (olddisk->d_state == G_RAID_DISK_S_OFFLINE) {
571 g_raid_destroy_disk(olddisk);
572 } else {
573 /* Otherwise, make it STALE_FAILED. */
574 g_raid_change_disk_state(olddisk, G_RAID_DISK_S_STALE_FAILED);
575 }
576
577 /* Welcome the new disk. */
578 if (resurrection)
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);
583 else
584 g_raid_change_disk_state(disk, G_RAID_DISK_S_FAILED);
585 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) {
586
587 /*
588 * Different disks may have different sizes,
589 * in concat mode. Update from real disk size.
590 */
591 if (meta->type == SII_T_CONCAT || meta->type == SII_T_JBOD)
592 sd->sd_size = pd->pd_disk_size - 0x800 * 512;
593
594 if (resurrection) {
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;
604 else
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);
612 } else {
613 /* Up to date disk. */
614 g_raid_change_subdisk_state(sd,
615 G_RAID_SUBDISK_S_ACTIVE);
616 }
617 } else {
618 g_raid_change_subdisk_state(sd,
619 G_RAID_SUBDISK_S_FAILED);
620 }
621 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW,
622 G_RAID_EVENT_SUBDISK);
623 }
624
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);
630 }
631
632 return (resurrection);
633}
634
635static void
636g_disk_md_sii_retaste(void *arg, int pending)
637{
638
639 G_RAID_DEBUG(1, "Array is not complete, trying to retaste.");
640 g_retaste(&g_raid_class);
641 free(arg, M_MD_SII);
642}
643
644static void
645g_raid_md_sii_refill(struct g_raid_softc *sc)
646{
647 struct g_raid_md_object *md;
648 struct g_raid_md_sii_object *mdi;
649 struct g_raid_disk *disk;
650 struct task *task;
651 int update, na;
652
653 md = sc->sc_md;
654 mdi = (struct g_raid_md_sii_object *)md;
655 update = 0;
656 do {
657 /* Make sure we miss anything. */
658 na = g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE);
659 if (na == mdi->mdio_total_disks)
660 break;
661
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);
665
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)
671 break;
672 }
673 }
674 if (disk != NULL)
675 continue;
676
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)
682 break;
683 }
684 }
685 } while (disk != NULL);
686
687 /* Write new metadata if we changed something. */
688 if (update)
689 g_raid_md_write_sii(md, NULL, NULL, NULL);
690
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);
694
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);
701 }
702}
703
704static void
705g_raid_md_sii_start(struct g_raid_softc *sc)
706{
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;
714 off_t size;
715 int j, disk_pos;
716 uint32_t gendiff, bestgendiff;
717 char buf[17];
718
719 md = sc->sc_md;
720 mdi = (struct g_raid_md_sii_object *)md;
721 meta = mdi->mdio_meta;
722
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;
740 else
741 vol->v_raid_level = G_RAID_VOLUME_RL_CONCAT;
742 size = 0;
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;
749 size = 0;
750 } else {
751 vol->v_raid_level = G_RAID_VOLUME_RL_UNKNOWN;
752 size = 0;
753 }
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];
759 sd->sd_offset = 0;
760 sd->sd_size = size;
761 }
762 g_raid_start_volume(vol);
763
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];
772 sd->sd_disk = disk;
773 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next);
774 }
775
776 /*
777 * Make all disks found till the moment take their places
778 * in order of their generation numbers.
779 */
780 do {
781 best = NULL;
782 bestgendiff = 0xffffffff;
783 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
784 if (disk->d_state != G_RAID_DISK_S_NONE)
785 continue;
786 pd = disk->d_md_data;
787 if (pd->pd_meta == NULL)
788 gendiff = 0xfffffffe;
789 else
790 gendiff = meta->generation -
791 pd->pd_meta->generation;
792 if (gendiff < bestgendiff) {
793 best = disk;
794 bestgendiff = gendiff;
795 }
796 }
797 if (best != NULL)
798 g_raid_md_sii_start_disk(best);
799 } while (best != NULL);
800
801 mdi->mdio_started = 1;
802 G_RAID_DEBUG1(0, sc, "Array started.");
803 g_raid_md_write_sii(md, NULL, NULL, NULL);
804
805 /* Pickup any STALE/SPARE disks to refill array if needed. */
806 g_raid_md_sii_refill(sc);
807
808 g_raid_event_send(vol, G_RAID_VOLUME_E_START, G_RAID_EVENT_VOLUME);
809
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;
814}
815
816static void
817g_raid_md_sii_new_disk(struct g_raid_disk *disk)
818{
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;
824
825 sc = disk->d_softc;
826 md = sc->sc_md;
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;
830
831 if (mdi->mdio_started) {
832 if (g_raid_md_sii_start_disk(disk))
833 g_raid_md_write_sii(md, NULL, NULL, NULL);
834 } else {
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);
849 } else {
850 G_RAID_DEBUG1(1, sc, "Older disk");
851 }
852
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);
856 }
857}
858
859static void
860g_raid_sii_go(void *arg)
861{
862 struct g_raid_softc *sc;
863 struct g_raid_md_object *md;
864 struct g_raid_md_sii_object *mdi;
865
866 sc = arg;
867 md = sc->sc_md;
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);
872 }
873}
874
875static int
876g_raid_md_create_sii(struct g_raid_md_object *md, struct g_class *mp,
877 struct g_geom **gp)
878{
879 struct g_raid_softc *sc;
880 struct g_raid_md_sii_object *mdi;
881 char name[32];
882
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);
897 if (sc == NULL)
898 return (G_RAID_MD_TASTE_FAIL);
899 md->mdo_softc = sc;
900 *gp = sc->sc_geom;
901 return (G_RAID_MD_TASTE_NEW);
902}
903
904static int
905g_raid_md_taste_sii(struct g_raid_md_object *md, struct g_class *mp,
906 struct g_consumer *cp, struct g_geom **gp)
907{
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;
915 struct g_geom *geom;
916 int disk_pos, result, spare, len;
917 char name[32];
918 uint16_t vendor;
919
920 G_RAID_DEBUG(1, "Tasting SiI on %s", cp->provider->name);
921 mdi = (struct g_raid_md_sii_object *)md;
922 pp = cp->provider;
923
924 /* Read metadata from device. */
925 meta = NULL;
| 30
31#include <sys/param.h>
32#include <sys/bio.h>
33#include <sys/endian.h>
34#include <sys/kernel.h>
35#include <sys/kobj.h>
36#include <sys/limits.h>
37#include <sys/lock.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"
45
46static MALLOC_DEFINE(M_MD_SII, "md_sii_data", "GEOM_RAID SiI metadata");
47
48struct 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 */
58 uint16_t dummy_2;
59 uint8_t disk_number; /* 139 */
60 uint8_t type;
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
69
70 uint8_t raid0_disks; /* 140 */
71 uint8_t raid0_ident;
72 uint8_t raid1_disks; /* 141 */
73 uint8_t raid1_ident;
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
81
82 uint8_t raid_status;
83#define SII_S_ONLINE 0x01
84#define SII_S_AVAILABLE 0x02
85
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
91
92 uint8_t dummy_3;
93 uint8_t name[16]; /* 151 - 158 */
94 uint16_t checksum; /* 159 */
95 uint16_t ata_params_160_255[96];
96} __packed;
97
98struct g_raid_md_sii_perdisk {
99 struct sii_raid_conf *pd_meta;
100 int pd_disk_pos;
101 off_t pd_disk_size;
102};
103
104struct 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;
113 int mdio_started;
114 int mdio_incomplete;
115 struct root_hold_token *mdio_rootmount; /* Root mount delay token. */
116};
117
118static g_raid_md_create_t g_raid_md_create_sii;
119static g_raid_md_taste_t g_raid_md_taste_sii;
120static g_raid_md_event_t g_raid_md_event_sii;
121static g_raid_md_ctl_t g_raid_md_ctl_sii;
122static g_raid_md_write_t g_raid_md_write_sii;
123static g_raid_md_fail_disk_t g_raid_md_fail_disk_sii;
124static g_raid_md_free_disk_t g_raid_md_free_disk_sii;
125static g_raid_md_free_t g_raid_md_free_sii;
126
127static 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),
136 { 0, 0 }
137};
138
139static struct g_raid_md_class g_raid_md_sii_class = {
140 "SiI",
141 g_raid_md_sii_methods,
142 sizeof(struct g_raid_md_sii_object),
143 .mdc_enable = 1,
144 .mdc_priority = 100
145};
146
147static void
148g_raid_md_sii_print(struct sii_raid_conf *meta)
149{
150
151 if (g_raid_debug < 1)
152 return;
153
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");
182}
183
184static struct sii_raid_conf *
185sii_meta_copy(struct sii_raid_conf *meta)
186{
187 struct sii_raid_conf *nmeta;
188
189 nmeta = malloc(sizeof(*meta), M_MD_SII, M_WAITOK);
190 memcpy(nmeta, meta, sizeof(*meta));
191 return (nmeta);
192}
193
194static int
195sii_meta_total_disks(struct sii_raid_conf *meta)
196{
197
198 switch (meta->type) {
199 case SII_T_RAID0:
200 case SII_T_RAID5:
201 case SII_T_CONCAT:
202 return (meta->raid0_disks);
203 case SII_T_RAID1:
204 return (meta->raid1_disks);
205 case SII_T_RAID01:
206 return (meta->raid0_disks * meta->raid1_disks);
207 case SII_T_SPARE:
208 case SII_T_JBOD:
209 return (1);
210 }
211 return (0);
212}
213
214static int
215sii_meta_disk_pos(struct sii_raid_conf *meta, struct sii_raid_conf *pdmeta)
216{
217
218 if (pdmeta->type == SII_T_SPARE)
219 return (-3);
220
221 if (memcmp(&meta->timestamp, &pdmeta->timestamp, 6) != 0)
222 return (-1);
223
224 switch (pdmeta->type) {
225 case SII_T_RAID0:
226 case SII_T_RAID1:
227 case SII_T_RAID5:
228 case SII_T_CONCAT:
229 return (pdmeta->disk_number);
230 case SII_T_RAID01:
231 return (pdmeta->raid1_ident * pdmeta->raid1_disks +
232 pdmeta->raid0_ident);
233 case SII_T_JBOD:
234 return (0);
235 }
236 return (-1);
237}
238
239static void
240sii_meta_get_name(struct sii_raid_conf *meta, char *buf)
241{
242 int i;
243
244 strncpy(buf, meta->name, 16);
245 buf[16] = 0;
246 for (i = 15; i >= 0; i--) {
247 if (buf[i] > 0x20)
248 break;
249 buf[i] = 0;
250 }
251}
252
253static void
254sii_meta_put_name(struct sii_raid_conf *meta, char *buf)
255{
256
257 memset(meta->name, 0x20, 16);
258 memcpy(meta->name, buf, MIN(strlen(buf), 16));
259}
260
261static struct sii_raid_conf *
262sii_meta_read(struct g_consumer *cp)
263{
264 struct g_provider *pp;
265 struct sii_raid_conf *meta;
266 char *buf;
267 int error, i;
268 uint16_t checksum, *ptr;
269
270 pp = cp->provider;
271
272 /* Read the anchor sector. */
273 buf = g_read_data(cp,
274 pp->mediasize - pp->sectorsize, pp->sectorsize, &error);
275 if (buf == NULL) {
276 G_RAID_DEBUG(1, "Cannot read metadata from %s (error=%d).",
277 pp->name, error);
278 return (NULL);
279 }
280 meta = (struct sii_raid_conf *)buf;
281
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);
286 g_free(buf);
287 return (NULL);
288 }
289
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);
294 g_free(buf);
295 return (NULL);
296 }
297 meta = malloc(sizeof(*meta), M_MD_SII, M_WAITOK);
298 memcpy(meta, buf, min(sizeof(*meta), pp->sectorsize));
299 g_free(buf);
300
301 /* Check metadata checksum. */
302 for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i <= 159; i++)
303 checksum += *ptr++;
304 if (checksum != 0) {
305 G_RAID_DEBUG(1, "SiI checksum check failed on %s", pp->name);
306 free(meta, M_MD_SII);
307 return (NULL);
308 }
309
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);
318 return (NULL);
319 }
320
321 return (meta);
322}
323
324static int
325sii_meta_write(struct g_consumer *cp, struct sii_raid_conf *meta)
326{
327 struct g_provider *pp;
328 char *buf;
329 int error, i;
330 uint16_t checksum, *ptr;
331
332 pp = cp->provider;
333
334 /* Recalculate checksum for case if metadata were changed. */
335 meta->checksum = 0;
336 for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i < 159; i++)
337 checksum += *ptr++;
338 meta->checksum -= checksum;
339
340 /* Create and fill buffer. */
341 buf = malloc(pp->sectorsize, M_MD_SII, M_WAITOK | M_ZERO);
342 memcpy(buf, meta, sizeof(*meta));
343
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);
349 if (error != 0) {
350 G_RAID_DEBUG(1, "Cannot write metadata to %s (error=%d).",
351 pp->name, error);
352 break;
353 }
354 }
355
356 free(buf, M_MD_SII);
357 return (error);
358}
359
360static int
361sii_meta_erase(struct g_consumer *cp)
362{
363 struct g_provider *pp;
364 char *buf;
365 int error, i;
366
367 pp = cp->provider;
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);
374 if (error != 0) {
375 G_RAID_DEBUG(1, "Cannot erase metadata on %s (error=%d).",
376 pp->name, error);
377 }
378 }
379 free(buf, M_MD_SII);
380 return (error);
381}
382
383static int
384sii_meta_write_spare(struct g_consumer *cp)
385{
386 struct sii_raid_conf *meta;
387 int error;
388
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);
407 return (error);
408}
409
410static struct g_raid_disk *
411g_raid_md_sii_get_disk(struct g_raid_softc *sc, int id)
412{
413 struct g_raid_disk *disk;
414 struct g_raid_md_sii_perdisk *pd;
415
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)
419 break;
420 }
421 return (disk);
422}
423
424static int
425g_raid_md_sii_supported(int level, int qual, int disks, int force)
426{
427
428 if (disks > 8)
429 return (0);
430 switch (level) {
431 case G_RAID_VOLUME_RL_RAID0:
432 if (disks < 1)
433 return (0);
434 if (!force && (disks < 2 || disks > 6))
435 return (0);
436 break;
437 case G_RAID_VOLUME_RL_RAID1:
438 if (disks < 1)
439 return (0);
440 if (!force && (disks != 2))
441 return (0);
442 break;
443 case G_RAID_VOLUME_RL_RAID1E:
444 if (disks < 2)
445 return (0);
446 if (disks % 2 != 0)
447 return (0);
448 if (!force && (disks < 4))
449 return (0);
450 break;
451 case G_RAID_VOLUME_RL_SINGLE:
452 if (disks != 1)
453 return (0);
454 break;
455 case G_RAID_VOLUME_RL_CONCAT:
456 if (disks < 2)
457 return (0);
458 break;
459 case G_RAID_VOLUME_RL_RAID5:
460 if (disks < 3)
461 return (0);
462 if (qual != G_RAID_VOLUME_RLQ_R5LS)
463 return (0);
464 break;
465 default:
466 return (0);
467 }
468 if (level != G_RAID_VOLUME_RL_RAID5 && qual != G_RAID_VOLUME_RLQ_NONE)
469 return (0);
470 return (1);
471}
472
473static int
474g_raid_md_sii_start_disk(struct g_raid_disk *disk)
475{
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;
484
485 sc = disk->d_softc;
486 md = sc->sc_md;
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;
490 olddisk = NULL;
491
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);
495 else
496 disk_pos = -3;
497 if (disk_pos < 0) {
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)
501 goto nofit;
502 /*
503 * If we have already started - try to get use of the disk.
504 * Try to replace OFFLINE disks first, then FAILED.
505 */
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)
509 continue;
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 >
513 pd->pd_disk_size) {
514 G_RAID_DEBUG1(1, sc,
515 "Disk too small (%ju < %ju)",
516 pd->pd_disk_size,
517 sd->sd_offset + sd->sd_size + 512);
518 break;
519 }
520 }
521 if (sd != NULL)
522 continue;
523 if (tmpdisk->d_state == G_RAID_DISK_S_OFFLINE) {
524 olddisk = tmpdisk;
525 break;
526 } else if (olddisk == NULL)
527 olddisk = tmpdisk;
528 }
529 if (olddisk == NULL) {
530nofit:
531 if (disk_pos == -3 || pd->pd_disk_pos == -3) {
532 g_raid_change_disk_state(disk,
533 G_RAID_DISK_S_SPARE);
534 return (1);
535 } else {
536 g_raid_change_disk_state(disk,
537 G_RAID_DISK_S_STALE);
538 return (0);
539 }
540 }
541 oldpd = (struct g_raid_md_sii_perdisk *)olddisk->d_md_data;
542 disk_pos = oldpd->pd_disk_pos;
543 resurrection = 1;
544 }
545
546 if (olddisk == NULL) {
547 /* Find placeholder by position. */
548 olddisk = g_raid_md_sii_get_disk(sc, disk_pos);
549 if (olddisk == NULL)
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 then one disk for pos %d",
553 disk_pos);
554 g_raid_change_disk_state(disk, G_RAID_DISK_S_STALE);
555 return (0);
556 }
557 oldpd = (struct g_raid_md_sii_perdisk *)olddisk->d_md_data;
558 }
559
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);
564 sd->sd_disk = disk;
565 }
566 oldpd->pd_disk_pos = -2;
567 pd->pd_disk_pos = disk_pos;
568
569 /* If it was placeholder -- destroy it. */
570 if (olddisk->d_state == G_RAID_DISK_S_OFFLINE) {
571 g_raid_destroy_disk(olddisk);
572 } else {
573 /* Otherwise, make it STALE_FAILED. */
574 g_raid_change_disk_state(olddisk, G_RAID_DISK_S_STALE_FAILED);
575 }
576
577 /* Welcome the new disk. */
578 if (resurrection)
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);
583 else
584 g_raid_change_disk_state(disk, G_RAID_DISK_S_FAILED);
585 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) {
586
587 /*
588 * Different disks may have different sizes,
589 * in concat mode. Update from real disk size.
590 */
591 if (meta->type == SII_T_CONCAT || meta->type == SII_T_JBOD)
592 sd->sd_size = pd->pd_disk_size - 0x800 * 512;
593
594 if (resurrection) {
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;
604 else
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);
612 } else {
613 /* Up to date disk. */
614 g_raid_change_subdisk_state(sd,
615 G_RAID_SUBDISK_S_ACTIVE);
616 }
617 } else {
618 g_raid_change_subdisk_state(sd,
619 G_RAID_SUBDISK_S_FAILED);
620 }
621 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW,
622 G_RAID_EVENT_SUBDISK);
623 }
624
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);
630 }
631
632 return (resurrection);
633}
634
635static void
636g_disk_md_sii_retaste(void *arg, int pending)
637{
638
639 G_RAID_DEBUG(1, "Array is not complete, trying to retaste.");
640 g_retaste(&g_raid_class);
641 free(arg, M_MD_SII);
642}
643
644static void
645g_raid_md_sii_refill(struct g_raid_softc *sc)
646{
647 struct g_raid_md_object *md;
648 struct g_raid_md_sii_object *mdi;
649 struct g_raid_disk *disk;
650 struct task *task;
651 int update, na;
652
653 md = sc->sc_md;
654 mdi = (struct g_raid_md_sii_object *)md;
655 update = 0;
656 do {
657 /* Make sure we miss anything. */
658 na = g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE);
659 if (na == mdi->mdio_total_disks)
660 break;
661
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);
665
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)
671 break;
672 }
673 }
674 if (disk != NULL)
675 continue;
676
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)
682 break;
683 }
684 }
685 } while (disk != NULL);
686
687 /* Write new metadata if we changed something. */
688 if (update)
689 g_raid_md_write_sii(md, NULL, NULL, NULL);
690
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);
694
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);
701 }
702}
703
704static void
705g_raid_md_sii_start(struct g_raid_softc *sc)
706{
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;
714 off_t size;
715 int j, disk_pos;
716 uint32_t gendiff, bestgendiff;
717 char buf[17];
718
719 md = sc->sc_md;
720 mdi = (struct g_raid_md_sii_object *)md;
721 meta = mdi->mdio_meta;
722
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;
740 else
741 vol->v_raid_level = G_RAID_VOLUME_RL_CONCAT;
742 size = 0;
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;
749 size = 0;
750 } else {
751 vol->v_raid_level = G_RAID_VOLUME_RL_UNKNOWN;
752 size = 0;
753 }
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];
759 sd->sd_offset = 0;
760 sd->sd_size = size;
761 }
762 g_raid_start_volume(vol);
763
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];
772 sd->sd_disk = disk;
773 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next);
774 }
775
776 /*
777 * Make all disks found till the moment take their places
778 * in order of their generation numbers.
779 */
780 do {
781 best = NULL;
782 bestgendiff = 0xffffffff;
783 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
784 if (disk->d_state != G_RAID_DISK_S_NONE)
785 continue;
786 pd = disk->d_md_data;
787 if (pd->pd_meta == NULL)
788 gendiff = 0xfffffffe;
789 else
790 gendiff = meta->generation -
791 pd->pd_meta->generation;
792 if (gendiff < bestgendiff) {
793 best = disk;
794 bestgendiff = gendiff;
795 }
796 }
797 if (best != NULL)
798 g_raid_md_sii_start_disk(best);
799 } while (best != NULL);
800
801 mdi->mdio_started = 1;
802 G_RAID_DEBUG1(0, sc, "Array started.");
803 g_raid_md_write_sii(md, NULL, NULL, NULL);
804
805 /* Pickup any STALE/SPARE disks to refill array if needed. */
806 g_raid_md_sii_refill(sc);
807
808 g_raid_event_send(vol, G_RAID_VOLUME_E_START, G_RAID_EVENT_VOLUME);
809
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;
814}
815
816static void
817g_raid_md_sii_new_disk(struct g_raid_disk *disk)
818{
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;
824
825 sc = disk->d_softc;
826 md = sc->sc_md;
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;
830
831 if (mdi->mdio_started) {
832 if (g_raid_md_sii_start_disk(disk))
833 g_raid_md_write_sii(md, NULL, NULL, NULL);
834 } else {
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);
849 } else {
850 G_RAID_DEBUG1(1, sc, "Older disk");
851 }
852
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);
856 }
857}
858
859static void
860g_raid_sii_go(void *arg)
861{
862 struct g_raid_softc *sc;
863 struct g_raid_md_object *md;
864 struct g_raid_md_sii_object *mdi;
865
866 sc = arg;
867 md = sc->sc_md;
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);
872 }
873}
874
875static int
876g_raid_md_create_sii(struct g_raid_md_object *md, struct g_class *mp,
877 struct g_geom **gp)
878{
879 struct g_raid_softc *sc;
880 struct g_raid_md_sii_object *mdi;
881 char name[32];
882
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);
897 if (sc == NULL)
898 return (G_RAID_MD_TASTE_FAIL);
899 md->mdo_softc = sc;
900 *gp = sc->sc_geom;
901 return (G_RAID_MD_TASTE_NEW);
902}
903
904static int
905g_raid_md_taste_sii(struct g_raid_md_object *md, struct g_class *mp,
906 struct g_consumer *cp, struct g_geom **gp)
907{
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;
915 struct g_geom *geom;
916 int disk_pos, result, spare, len;
917 char name[32];
918 uint16_t vendor;
919
920 G_RAID_DEBUG(1, "Tasting SiI on %s", cp->provider->name);
921 mdi = (struct g_raid_md_sii_object *)md;
922 pp = cp->provider;
923
924 /* Read metadata from device. */
925 meta = NULL;
|
926 vendor = 0xffff;
| |
927 g_topology_unlock();
| 926 g_topology_unlock();
|
928 len = 2;
| 927 vendor = 0xffff;
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);
932 g_topology_lock();
933 if (meta == NULL) {
934 if (g_raid_aggressive_spare) {
935 if (vendor == 0x1095) {
936 G_RAID_DEBUG(1,
937 "No SiI metadata, forcing spare.");
938 spare = 2;
939 goto search;
940 } else {
941 G_RAID_DEBUG(1,
942 "SiI vendor mismatch 0x%04x != 0x1095",
943 vendor);
944 }
945 }
946 return (G_RAID_MD_TASTE_FAIL);
947 }
948
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");
953 goto fail1;
954 }
955
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;
960
961search:
962 /* Search for matching node. */
963 sc = NULL;
964 mdi1 = NULL;
965 LIST_FOREACH(geom, &mp->geom, geom) {
966 sc = geom->softc;
967 if (sc == NULL)
968 continue;
969 if (sc->sc_stopping != 0)
970 continue;
971 if (sc->sc_md->mdo_class != md->mdo_class)
972 continue;
973 mdi1 = (struct g_raid_md_sii_object *)sc->sc_md;
974 if (spare) {
975 if (mdi1->mdio_incomplete)
976 break;
977 } else {
978 if (mdi1->mdio_location == meta->raid_location &&
979 memcmp(&mdi1->mdio_timestamp,
980 &meta->timestamp, 6) == 0)
981 break;
982 }
983 }
984
985 /* Found matching node. */
986 if (geom != NULL) {
987 G_RAID_DEBUG(1, "Found matching array %s", sc->sc_name);
988 result = G_RAID_MD_TASTE_EXISTING;
989
990 } else if (spare) { /* Not found needy node -- left for later. */
991 G_RAID_DEBUG(1, "Spare is not needed at this time");
992 goto fail1;
993
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);
1003 md->mdo_softc = sc;
1004 geom = sc->sc_geom;
1005 callout_init(&mdi->mdio_start_co, 1);
1006 callout_reset(&mdi->mdio_start_co, g_raid_start_timeout * hz,
1007 g_raid_sii_go, sc);
1008 mdi->mdio_rootmount = root_mount_hold("GRAID-SiI");
1009 G_RAID_DEBUG1(1, sc, "root_mount_hold %p", mdi->mdio_rootmount);
1010 }
1011
1012 /* There is no return after this point, so we close passed consumer. */
1013 g_access(cp, -1, 0, 0);
1014
1015 rcp = g_new_consumer(geom);
1016 rcp->flags |= G_CF_DIRECT_RECEIVE;
1017 g_attach(rcp, pp);
1018 if (g_access(rcp, 1, 1, 1) != 0)
1019 ; //goto fail1;
1020
1021 g_topology_unlock();
1022 sx_xlock(&sc->sc_lock);
1023
1024 pd = malloc(sizeof(*pd), M_MD_SII, M_WAITOK | M_ZERO);
1025 pd->pd_meta = meta;
1026 if (spare == 2) {
1027 pd->pd_disk_pos = -3;
1028 } else {
1029 pd->pd_disk_pos = -1;
1030 }
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;
1036
1037 g_raid_get_disk_info(disk);
1038
1039 g_raid_md_sii_new_disk(disk);
1040
1041 sx_xunlock(&sc->sc_lock);
1042 g_topology_lock();
1043 *gp = geom;
1044 return (result);
1045fail1:
1046 free(meta, M_MD_SII);
1047 return (G_RAID_MD_TASTE_FAIL);
1048}
1049
1050static int
1051g_raid_md_event_sii(struct g_raid_md_object *md,
1052 struct g_raid_disk *disk, u_int event)
1053{
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;
1058
1059 sc = md->mdo_softc;
1060 mdi = (struct g_raid_md_sii_object *)md;
1061 if (disk == NULL) {
1062 switch (event) {
1063 case G_RAID_NODE_E_START:
1064 if (!mdi->mdio_started)
1065 g_raid_md_sii_start(sc);
1066 return (0);
1067 }
1068 return (-1);
1069 }
1070 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
1071 switch (event) {
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;
1079 }
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);
1085 }
1086 } else {
1087 /* Otherwise -- delete. */
1088 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE);
1089 g_raid_destroy_disk(disk);
1090 }
1091
1092 /* Write updated metadata to all disks. */
1093 g_raid_md_write_sii(md, NULL, NULL, NULL);
1094
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);
1099 else
1100 g_raid_md_sii_refill(sc);
1101 return (0);
1102 }
1103 return (-2);
1104}
1105
1106static int
1107g_raid_md_ctl_sii(struct g_raid_md_object *md,
1108 struct gctl_req *req)
1109{
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;
1118 char arg[16];
1119 const char *verb, *volname, *levelname, *diskname;
1120 int *nargs, *force;
1121 off_t size, sectorsize, strip;
1122 intmax_t *sizearg, *striparg;
1123 int numdisks, i, len, level, qual, update;
1124 int error;
1125
1126 sc = md->mdo_softc;
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));
1130 error = 0;
1131 if (strcmp(verb, "label") == 0) {
1132
1133 if (*nargs < 4) {
1134 gctl_error(req, "Invalid number of arguments.");
1135 return (-1);
1136 }
1137 volname = gctl_get_asciiparam(req, "arg1");
1138 if (volname == NULL) {
1139 gctl_error(req, "No volume name.");
1140 return (-2);
1141 }
1142 levelname = gctl_get_asciiparam(req, "arg2");
1143 if (levelname == NULL) {
1144 gctl_error(req, "No RAID level.");
1145 return (-3);
1146 }
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);
1151 return (-4);
1152 }
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);
1160 return (-5);
1161 }
1162
1163 /* Search for disks, connect them and probe. */
1164 size = 0x7fffffffffffffffllu;
1165 sectorsize = 0;
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);
1171 error = -6;
1172 break;
1173 }
1174 if (strcmp(diskname, "NONE") == 0) {
1175 cp = NULL;
1176 pp = NULL;
1177 } else {
1178 g_topology_lock();
1179 cp = g_raid_open_consumer(sc, diskname);
1180 if (cp == NULL) {
1181 gctl_error(req, "Can't open '%s'.",
1182 diskname);
1183 g_topology_unlock();
1184 error = -7;
1185 break;
1186 }
1187 pp = cp->provider;
1188 }
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;
1194 if (cp == NULL)
1195 continue;
1196 cp->private = disk;
1197 g_topology_unlock();
1198
1199 g_raid_get_disk_info(disk);
1200
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;
1206 }
1207 if (error != 0)
1208 return (error);
1209
1210 if (sectorsize <= 0) {
1211 gctl_error(req, "Can't get sector size.");
1212 return (-8);
1213 }
1214
1215 /* Reserve space for metadata. */
1216 size -= 0x800 * sectorsize;
1217
1218 /* Handle size argument. */
1219 len = sizeof(*sizearg);
1220 sizearg = gctl_get_param(req, "size", &len);
1221 if (sizearg != NULL && len == sizeof(*sizearg) &&
1222 *sizearg > 0) {
1223 if (*sizearg > size) {
1224 gctl_error(req, "Size too big %lld > %lld.",
1225 (long long)*sizearg, (long long)size);
1226 return (-9);
1227 }
1228 size = *sizearg;
1229 }
1230
1231 /* Handle strip argument. */
1232 strip = 131072;
1233 len = sizeof(*striparg);
1234 striparg = gctl_get_param(req, "strip", &len);
1235 if (striparg != NULL && len == sizeof(*striparg) &&
1236 *striparg > 0) {
1237 if (*striparg < sectorsize) {
1238 gctl_error(req, "Strip size too small.");
1239 return (-10);
1240 }
1241 if (*striparg % sectorsize != 0) {
1242 gctl_error(req, "Incorrect strip size.");
1243 return (-11);
1244 }
1245 if (strip > 65535 * sectorsize) {
1246 gctl_error(req, "Strip size too big.");
1247 return (-12);
1248 }
1249 strip = *striparg;
1250 }
1251
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));
1258 else
1259 size -= (size % strip);
1260 if (size <= 0) {
1261 gctl_error(req, "Size too small.");
1262 return (-13);
1263 }
1264 if (size > 0xffffffffffffllu * sectorsize) {
1265 gctl_error(req, "Size too big.");
1266 return (-14);
1267 }
1268
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);
1286 else { /* RAID1E */
1287 vol->v_mediasize = ((size * numdisks) / strip / 2) *
1288 strip;
1289 }
1290 vol->v_sectorsize = sectorsize;
1291 g_raid_start_volume(vol);
1292
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];
1297 sd->sd_disk = disk;
1298 sd->sd_offset = 0;
1299 sd->sd_size = size;
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);
1308 } else {
1309 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE);
1310 }
1311 }
1312
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);
1316
1317 /* Pickup any STALE/SPARE disks to refill array if needed. */
1318 g_raid_md_sii_refill(sc);
1319
1320 g_raid_event_send(vol, G_RAID_VOLUME_E_START,
1321 G_RAID_EVENT_VOLUME);
1322 return (0);
1323 }
1324 if (strcmp(verb, "delete") == 0) {
1325
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.");
1331 return (-4);
1332 }
1333
1334 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1335 if (disk->d_consumer)
1336 sii_meta_erase(disk->d_consumer);
1337 }
1338 g_raid_destroy_node(sc, 0);
1339 return (0);
1340 }
1341 if (strcmp(verb, "remove") == 0 ||
1342 strcmp(verb, "fail") == 0) {
1343 if (*nargs < 2) {
1344 gctl_error(req, "Invalid number of arguments.");
1345 return (-1);
1346 }
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);
1352 error = -2;
1353 break;
1354 }
1355 if (strncmp(diskname, "/dev/", 5) == 0)
1356 diskname += 5;
1357
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,
1362 diskname) == 0)
1363 break;
1364 }
1365 if (disk == NULL) {
1366 gctl_error(req, "Disk '%s' not found.",
1367 diskname);
1368 error = -3;
1369 break;
1370 }
1371
1372 if (strcmp(verb, "fail") == 0) {
1373 g_raid_md_fail_disk_sii(md, NULL, disk);
1374 continue;
1375 }
1376
1377 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
1378
1379 /* Erase metadata on deleting disk. */
1380 sii_meta_erase(disk->d_consumer);
1381
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);
1392 }
1393 } else {
1394 /* Otherwise -- delete. */
1395 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE);
1396 g_raid_destroy_disk(disk);
1397 }
1398 }
1399
1400 /* Write updated metadata to remaining disks. */
1401 g_raid_md_write_sii(md, NULL, NULL, NULL);
1402
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);
1407 else
1408 g_raid_md_sii_refill(sc);
1409 return (error);
1410 }
1411 if (strcmp(verb, "insert") == 0) {
1412 if (*nargs < 2) {
1413 gctl_error(req, "Invalid number of arguments.");
1414 return (-1);
1415 }
1416 update = 0;
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);
1423 error = -3;
1424 break;
1425 }
1426
1427 /* Try to find provider with specified name. */
1428 g_topology_lock();
1429 cp = g_raid_open_consumer(sc, diskname);
1430 if (cp == NULL) {
1431 gctl_error(req, "Can't open disk '%s'.",
1432 diskname);
1433 g_topology_unlock();
1434 error = -4;
1435 break;
1436 }
1437 pp = cp->provider;
1438
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;
1442
1443 disk = g_raid_create_disk(sc);
1444 disk->d_consumer = cp;
1445 disk->d_md_data = (void *)pd;
1446 cp->private = disk;
1447 g_topology_unlock();
1448
1449 g_raid_get_disk_info(disk);
1450
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.",
1458 diskname);
1459 g_raid_destroy_disk(disk);
1460 error = -8;
1461 break;
1462 }
1463 }
1464
1465 /* Write new metadata if we changed something. */
1466 if (update)
1467 g_raid_md_write_sii(md, NULL, NULL, NULL);
1468 return (error);
1469 }
1470 gctl_error(req, "Command '%s' is not supported.", verb);
1471 return (-100);
1472}
1473
1474static int
1475g_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)
1477{
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;
1485 int i;
1486
1487 sc = md->mdo_softc;
1488 mdi = (struct g_raid_md_sii_object *)md;
1489
1490 if (sc->sc_stopping == G_RAID_DESTROY_HARD)
1491 return (0);
1492
1493 /* Bump generation. Newly written metadata may differ from previous. */
1494 mdi->mdio_generation++;
1495
1496 /* There is only one volume. */
1497 vol = TAILQ_FIRST(&sc->sc_volumes);
1498
1499 /* Fill global fields. */
1500 meta = malloc(sizeof(*meta), M_MD_SII, M_WAITOK | M_ZERO);
1501 if (mdi->mdio_meta)
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;
1526 } else {
1527 meta->type = SII_T_RAID5;
1528 meta->raid0_disks = vol->v_disks_count;
1529 meta->raid1_disks = 0xff;
1530 }
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;
1538 }
1539 meta->raid_location = mdi->mdio_location;
1540 sii_meta_put_name(meta, vol->v_name);
1541
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)
1549 continue;
1550 if (pd->pd_meta != NULL) {
1551 free(pd->pd_meta, M_MD_SII);
1552 pd->pd_meta = NULL;
1553 }
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;
1562 } else
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;
1572 } else {
1573 pd->pd_meta->disk_number = sd->sd_pos;
1574 pd->pd_meta->raid0_ident = 0;
1575 pd->pd_meta->raid1_ident = 0xff;
1576 }
1577 }
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);
1582 }
1583 return (0);
1584}
1585
1586static int
1587g_raid_md_fail_disk_sii(struct g_raid_md_object *md,
1588 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk)
1589{
1590 struct g_raid_softc *sc;
1591 struct g_raid_md_sii_perdisk *pd;
1592 struct g_raid_subdisk *sd;
1593
1594 sc = md->mdo_softc;
1595 pd = (struct g_raid_md_sii_perdisk *)tdisk->d_md_data;
1596
1597 /* We can't fail disk that is not a part of array now. */
1598 if (pd->pd_disk_pos < 0)
1599 return (-1);
1600
1601 /*
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.
1604 */
1605 if (tdisk->d_consumer) {
1606 if (pd->pd_meta) {
1607 pd->pd_meta->disk_status = SII_S_REMOVED;
1608 sii_meta_write(tdisk->d_consumer, pd->pd_meta);
1609 } else
1610 sii_meta_erase(tdisk->d_consumer);
1611 }
1612
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);
1620 }
1621
1622 /* Write updated metadata to remaining disks. */
1623 g_raid_md_write_sii(md, NULL, NULL, tdisk);
1624
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);
1629 else
1630 g_raid_md_sii_refill(sc);
1631 return (0);
1632}
1633
1634static int
1635g_raid_md_free_disk_sii(struct g_raid_md_object *md,
1636 struct g_raid_disk *disk)
1637{
1638 struct g_raid_md_sii_perdisk *pd;
1639
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);
1643 pd->pd_meta = NULL;
1644 }
1645 free(pd, M_MD_SII);
1646 disk->d_md_data = NULL;
1647 return (0);
1648}
1649
1650static int
1651g_raid_md_free_sii(struct g_raid_md_object *md)
1652{
1653 struct g_raid_md_sii_object *mdi;
1654
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;
1663 }
1664 if (mdi->mdio_meta != NULL) {
1665 free(mdi->mdio_meta, M_MD_SII);
1666 mdi->mdio_meta = NULL;
1667 }
1668 return (0);
1669}
1670
1671G_RAID_MD_DECLARE(sii, "SiI");
| 929 if (pp->geom->rank == 1)
930 g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor);
931 meta = sii_meta_read(cp);
932 g_topology_lock();
933 if (meta == NULL) {
934 if (g_raid_aggressive_spare) {
935 if (vendor == 0x1095) {
936 G_RAID_DEBUG(1,
937 "No SiI metadata, forcing spare.");
938 spare = 2;
939 goto search;
940 } else {
941 G_RAID_DEBUG(1,
942 "SiI vendor mismatch 0x%04x != 0x1095",
943 vendor);
944 }
945 }
946 return (G_RAID_MD_TASTE_FAIL);
947 }
948
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");
953 goto fail1;
954 }
955
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;
960
961search:
962 /* Search for matching node. */
963 sc = NULL;
964 mdi1 = NULL;
965 LIST_FOREACH(geom, &mp->geom, geom) {
966 sc = geom->softc;
967 if (sc == NULL)
968 continue;
969 if (sc->sc_stopping != 0)
970 continue;
971 if (sc->sc_md->mdo_class != md->mdo_class)
972 continue;
973 mdi1 = (struct g_raid_md_sii_object *)sc->sc_md;
974 if (spare) {
975 if (mdi1->mdio_incomplete)
976 break;
977 } else {
978 if (mdi1->mdio_location == meta->raid_location &&
979 memcmp(&mdi1->mdio_timestamp,
980 &meta->timestamp, 6) == 0)
981 break;
982 }
983 }
984
985 /* Found matching node. */
986 if (geom != NULL) {
987 G_RAID_DEBUG(1, "Found matching array %s", sc->sc_name);
988 result = G_RAID_MD_TASTE_EXISTING;
989
990 } else if (spare) { /* Not found needy node -- left for later. */
991 G_RAID_DEBUG(1, "Spare is not needed at this time");
992 goto fail1;
993
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);
1003 md->mdo_softc = sc;
1004 geom = sc->sc_geom;
1005 callout_init(&mdi->mdio_start_co, 1);
1006 callout_reset(&mdi->mdio_start_co, g_raid_start_timeout * hz,
1007 g_raid_sii_go, sc);
1008 mdi->mdio_rootmount = root_mount_hold("GRAID-SiI");
1009 G_RAID_DEBUG1(1, sc, "root_mount_hold %p", mdi->mdio_rootmount);
1010 }
1011
1012 /* There is no return after this point, so we close passed consumer. */
1013 g_access(cp, -1, 0, 0);
1014
1015 rcp = g_new_consumer(geom);
1016 rcp->flags |= G_CF_DIRECT_RECEIVE;
1017 g_attach(rcp, pp);
1018 if (g_access(rcp, 1, 1, 1) != 0)
1019 ; //goto fail1;
1020
1021 g_topology_unlock();
1022 sx_xlock(&sc->sc_lock);
1023
1024 pd = malloc(sizeof(*pd), M_MD_SII, M_WAITOK | M_ZERO);
1025 pd->pd_meta = meta;
1026 if (spare == 2) {
1027 pd->pd_disk_pos = -3;
1028 } else {
1029 pd->pd_disk_pos = -1;
1030 }
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;
1036
1037 g_raid_get_disk_info(disk);
1038
1039 g_raid_md_sii_new_disk(disk);
1040
1041 sx_xunlock(&sc->sc_lock);
1042 g_topology_lock();
1043 *gp = geom;
1044 return (result);
1045fail1:
1046 free(meta, M_MD_SII);
1047 return (G_RAID_MD_TASTE_FAIL);
1048}
1049
1050static int
1051g_raid_md_event_sii(struct g_raid_md_object *md,
1052 struct g_raid_disk *disk, u_int event)
1053{
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;
1058
1059 sc = md->mdo_softc;
1060 mdi = (struct g_raid_md_sii_object *)md;
1061 if (disk == NULL) {
1062 switch (event) {
1063 case G_RAID_NODE_E_START:
1064 if (!mdi->mdio_started)
1065 g_raid_md_sii_start(sc);
1066 return (0);
1067 }
1068 return (-1);
1069 }
1070 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
1071 switch (event) {
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;
1079 }
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);
1085 }
1086 } else {
1087 /* Otherwise -- delete. */
1088 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE);
1089 g_raid_destroy_disk(disk);
1090 }
1091
1092 /* Write updated metadata to all disks. */
1093 g_raid_md_write_sii(md, NULL, NULL, NULL);
1094
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);
1099 else
1100 g_raid_md_sii_refill(sc);
1101 return (0);
1102 }
1103 return (-2);
1104}
1105
1106static int
1107g_raid_md_ctl_sii(struct g_raid_md_object *md,
1108 struct gctl_req *req)
1109{
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;
1118 char arg[16];
1119 const char *verb, *volname, *levelname, *diskname;
1120 int *nargs, *force;
1121 off_t size, sectorsize, strip;
1122 intmax_t *sizearg, *striparg;
1123 int numdisks, i, len, level, qual, update;
1124 int error;
1125
1126 sc = md->mdo_softc;
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));
1130 error = 0;
1131 if (strcmp(verb, "label") == 0) {
1132
1133 if (*nargs < 4) {
1134 gctl_error(req, "Invalid number of arguments.");
1135 return (-1);
1136 }
1137 volname = gctl_get_asciiparam(req, "arg1");
1138 if (volname == NULL) {
1139 gctl_error(req, "No volume name.");
1140 return (-2);
1141 }
1142 levelname = gctl_get_asciiparam(req, "arg2");
1143 if (levelname == NULL) {
1144 gctl_error(req, "No RAID level.");
1145 return (-3);
1146 }
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);
1151 return (-4);
1152 }
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);
1160 return (-5);
1161 }
1162
1163 /* Search for disks, connect them and probe. */
1164 size = 0x7fffffffffffffffllu;
1165 sectorsize = 0;
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);
1171 error = -6;
1172 break;
1173 }
1174 if (strcmp(diskname, "NONE") == 0) {
1175 cp = NULL;
1176 pp = NULL;
1177 } else {
1178 g_topology_lock();
1179 cp = g_raid_open_consumer(sc, diskname);
1180 if (cp == NULL) {
1181 gctl_error(req, "Can't open '%s'.",
1182 diskname);
1183 g_topology_unlock();
1184 error = -7;
1185 break;
1186 }
1187 pp = cp->provider;
1188 }
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;
1194 if (cp == NULL)
1195 continue;
1196 cp->private = disk;
1197 g_topology_unlock();
1198
1199 g_raid_get_disk_info(disk);
1200
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;
1206 }
1207 if (error != 0)
1208 return (error);
1209
1210 if (sectorsize <= 0) {
1211 gctl_error(req, "Can't get sector size.");
1212 return (-8);
1213 }
1214
1215 /* Reserve space for metadata. */
1216 size -= 0x800 * sectorsize;
1217
1218 /* Handle size argument. */
1219 len = sizeof(*sizearg);
1220 sizearg = gctl_get_param(req, "size", &len);
1221 if (sizearg != NULL && len == sizeof(*sizearg) &&
1222 *sizearg > 0) {
1223 if (*sizearg > size) {
1224 gctl_error(req, "Size too big %lld > %lld.",
1225 (long long)*sizearg, (long long)size);
1226 return (-9);
1227 }
1228 size = *sizearg;
1229 }
1230
1231 /* Handle strip argument. */
1232 strip = 131072;
1233 len = sizeof(*striparg);
1234 striparg = gctl_get_param(req, "strip", &len);
1235 if (striparg != NULL && len == sizeof(*striparg) &&
1236 *striparg > 0) {
1237 if (*striparg < sectorsize) {
1238 gctl_error(req, "Strip size too small.");
1239 return (-10);
1240 }
1241 if (*striparg % sectorsize != 0) {
1242 gctl_error(req, "Incorrect strip size.");
1243 return (-11);
1244 }
1245 if (strip > 65535 * sectorsize) {
1246 gctl_error(req, "Strip size too big.");
1247 return (-12);
1248 }
1249 strip = *striparg;
1250 }
1251
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));
1258 else
1259 size -= (size % strip);
1260 if (size <= 0) {
1261 gctl_error(req, "Size too small.");
1262 return (-13);
1263 }
1264 if (size > 0xffffffffffffllu * sectorsize) {
1265 gctl_error(req, "Size too big.");
1266 return (-14);
1267 }
1268
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);
1286 else { /* RAID1E */
1287 vol->v_mediasize = ((size * numdisks) / strip / 2) *
1288 strip;
1289 }
1290 vol->v_sectorsize = sectorsize;
1291 g_raid_start_volume(vol);
1292
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];
1297 sd->sd_disk = disk;
1298 sd->sd_offset = 0;
1299 sd->sd_size = size;
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);
1308 } else {
1309 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE);
1310 }
1311 }
1312
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);
1316
1317 /* Pickup any STALE/SPARE disks to refill array if needed. */
1318 g_raid_md_sii_refill(sc);
1319
1320 g_raid_event_send(vol, G_RAID_VOLUME_E_START,
1321 G_RAID_EVENT_VOLUME);
1322 return (0);
1323 }
1324 if (strcmp(verb, "delete") == 0) {
1325
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.");
1331 return (-4);
1332 }
1333
1334 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1335 if (disk->d_consumer)
1336 sii_meta_erase(disk->d_consumer);
1337 }
1338 g_raid_destroy_node(sc, 0);
1339 return (0);
1340 }
1341 if (strcmp(verb, "remove") == 0 ||
1342 strcmp(verb, "fail") == 0) {
1343 if (*nargs < 2) {
1344 gctl_error(req, "Invalid number of arguments.");
1345 return (-1);
1346 }
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);
1352 error = -2;
1353 break;
1354 }
1355 if (strncmp(diskname, "/dev/", 5) == 0)
1356 diskname += 5;
1357
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,
1362 diskname) == 0)
1363 break;
1364 }
1365 if (disk == NULL) {
1366 gctl_error(req, "Disk '%s' not found.",
1367 diskname);
1368 error = -3;
1369 break;
1370 }
1371
1372 if (strcmp(verb, "fail") == 0) {
1373 g_raid_md_fail_disk_sii(md, NULL, disk);
1374 continue;
1375 }
1376
1377 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
1378
1379 /* Erase metadata on deleting disk. */
1380 sii_meta_erase(disk->d_consumer);
1381
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);
1392 }
1393 } else {
1394 /* Otherwise -- delete. */
1395 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE);
1396 g_raid_destroy_disk(disk);
1397 }
1398 }
1399
1400 /* Write updated metadata to remaining disks. */
1401 g_raid_md_write_sii(md, NULL, NULL, NULL);
1402
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);
1407 else
1408 g_raid_md_sii_refill(sc);
1409 return (error);
1410 }
1411 if (strcmp(verb, "insert") == 0) {
1412 if (*nargs < 2) {
1413 gctl_error(req, "Invalid number of arguments.");
1414 return (-1);
1415 }
1416 update = 0;
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);
1423 error = -3;
1424 break;
1425 }
1426
1427 /* Try to find provider with specified name. */
1428 g_topology_lock();
1429 cp = g_raid_open_consumer(sc, diskname);
1430 if (cp == NULL) {
1431 gctl_error(req, "Can't open disk '%s'.",
1432 diskname);
1433 g_topology_unlock();
1434 error = -4;
1435 break;
1436 }
1437 pp = cp->provider;
1438
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;
1442
1443 disk = g_raid_create_disk(sc);
1444 disk->d_consumer = cp;
1445 disk->d_md_data = (void *)pd;
1446 cp->private = disk;
1447 g_topology_unlock();
1448
1449 g_raid_get_disk_info(disk);
1450
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.",
1458 diskname);
1459 g_raid_destroy_disk(disk);
1460 error = -8;
1461 break;
1462 }
1463 }
1464
1465 /* Write new metadata if we changed something. */
1466 if (update)
1467 g_raid_md_write_sii(md, NULL, NULL, NULL);
1468 return (error);
1469 }
1470 gctl_error(req, "Command '%s' is not supported.", verb);
1471 return (-100);
1472}
1473
1474static int
1475g_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)
1477{
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;
1485 int i;
1486
1487 sc = md->mdo_softc;
1488 mdi = (struct g_raid_md_sii_object *)md;
1489
1490 if (sc->sc_stopping == G_RAID_DESTROY_HARD)
1491 return (0);
1492
1493 /* Bump generation. Newly written metadata may differ from previous. */
1494 mdi->mdio_generation++;
1495
1496 /* There is only one volume. */
1497 vol = TAILQ_FIRST(&sc->sc_volumes);
1498
1499 /* Fill global fields. */
1500 meta = malloc(sizeof(*meta), M_MD_SII, M_WAITOK | M_ZERO);
1501 if (mdi->mdio_meta)
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;
1526 } else {
1527 meta->type = SII_T_RAID5;
1528 meta->raid0_disks = vol->v_disks_count;
1529 meta->raid1_disks = 0xff;
1530 }
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;
1538 }
1539 meta->raid_location = mdi->mdio_location;
1540 sii_meta_put_name(meta, vol->v_name);
1541
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)
1549 continue;
1550 if (pd->pd_meta != NULL) {
1551 free(pd->pd_meta, M_MD_SII);
1552 pd->pd_meta = NULL;
1553 }
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;
1562 } else
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;
1572 } else {
1573 pd->pd_meta->disk_number = sd->sd_pos;
1574 pd->pd_meta->raid0_ident = 0;
1575 pd->pd_meta->raid1_ident = 0xff;
1576 }
1577 }
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);
1582 }
1583 return (0);
1584}
1585
1586static int
1587g_raid_md_fail_disk_sii(struct g_raid_md_object *md,
1588 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk)
1589{
1590 struct g_raid_softc *sc;
1591 struct g_raid_md_sii_perdisk *pd;
1592 struct g_raid_subdisk *sd;
1593
1594 sc = md->mdo_softc;
1595 pd = (struct g_raid_md_sii_perdisk *)tdisk->d_md_data;
1596
1597 /* We can't fail disk that is not a part of array now. */
1598 if (pd->pd_disk_pos < 0)
1599 return (-1);
1600
1601 /*
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.
1604 */
1605 if (tdisk->d_consumer) {
1606 if (pd->pd_meta) {
1607 pd->pd_meta->disk_status = SII_S_REMOVED;
1608 sii_meta_write(tdisk->d_consumer, pd->pd_meta);
1609 } else
1610 sii_meta_erase(tdisk->d_consumer);
1611 }
1612
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);
1620 }
1621
1622 /* Write updated metadata to remaining disks. */
1623 g_raid_md_write_sii(md, NULL, NULL, tdisk);
1624
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);
1629 else
1630 g_raid_md_sii_refill(sc);
1631 return (0);
1632}
1633
1634static int
1635g_raid_md_free_disk_sii(struct g_raid_md_object *md,
1636 struct g_raid_disk *disk)
1637{
1638 struct g_raid_md_sii_perdisk *pd;
1639
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);
1643 pd->pd_meta = NULL;
1644 }
1645 free(pd, M_MD_SII);
1646 disk->d_md_data = NULL;
1647 return (0);
1648}
1649
1650static int
1651g_raid_md_free_sii(struct g_raid_md_object *md)
1652{
1653 struct g_raid_md_sii_object *mdi;
1654
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;
1663 }
1664 if (mdi->mdio_meta != NULL) {
1665 free(mdi->mdio_meta, M_MD_SII);
1666 mdi->mdio_meta = NULL;
1667 }
1668 return (0);
1669}
1670
1671G_RAID_MD_DECLARE(sii, "SiI");
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