1/*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2011 Alexander Motin <mav@FreeBSD.org> 5 * Copyright (c) 2000 - 2008 S��ren Schmidt <sos@FreeBSD.org> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30#include <sys/param.h> 31#include <sys/bio.h> 32#include <sys/endian.h> 33#include <sys/kernel.h> 34#include <sys/kobj.h> 35#include <sys/limits.h> 36#include <sys/lock.h> 37#include <sys/malloc.h> 38#include <sys/mutex.h> 39#include <sys/systm.h> 40#include <sys/taskqueue.h> 41#include <geom/geom.h> 42#include <geom/geom_dbg.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 if (pp->sectorsize < sizeof(*meta)) 272 return (NULL); 273 /* Read the anchor sector. */ 274 buf = g_read_data(cp, 275 pp->mediasize - pp->sectorsize, pp->sectorsize, &error); 276 if (buf == NULL) { 277 G_RAID_DEBUG(1, "Cannot read metadata from %s (error=%d).", 278 pp->name, error); 279 return (NULL); 280 } 281 meta = (struct sii_raid_conf *)buf; 282 283 /* Check vendor ID. */ 284 if (meta->vendor_id != 0x1095) { 285 G_RAID_DEBUG(1, "SiI vendor ID check failed on %s (0x%04x)", 286 pp->name, meta->vendor_id); 287 g_free(buf); 288 return (NULL); 289 } 290 291 /* Check metadata major version. */ 292 if (meta->version_major != 2) { 293 G_RAID_DEBUG(1, "SiI version check failed on %s (%d.%d)", 294 pp->name, meta->version_major, meta->version_minor); 295 g_free(buf); 296 return (NULL); 297 } 298 meta = malloc(sizeof(*meta), M_MD_SII, M_WAITOK); 299 memcpy(meta, buf, min(sizeof(*meta), pp->sectorsize)); 300 g_free(buf); 301 302 /* Check metadata checksum. */ 303 for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i <= 159; i++) 304 checksum += *ptr++; 305 if (checksum != 0) { 306 G_RAID_DEBUG(1, "SiI checksum check failed on %s", pp->name); 307 free(meta, M_MD_SII); 308 return (NULL); 309 } 310 311 /* Check raid type. */ 312 if (meta->type != SII_T_RAID0 && meta->type != SII_T_RAID1 && 313 meta->type != SII_T_RAID01 && meta->type != SII_T_SPARE && 314 meta->type != SII_T_RAID5 && meta->type != SII_T_CONCAT && 315 meta->type != SII_T_JBOD) { 316 G_RAID_DEBUG(1, "SiI unknown RAID level on %s (0x%02x)", 317 pp->name, meta->type); 318 free(meta, M_MD_SII); 319 return (NULL); 320 } 321 322 return (meta); 323} 324 325static int 326sii_meta_write(struct g_consumer *cp, struct sii_raid_conf *meta) 327{ 328 struct g_provider *pp; 329 char *buf; 330 int error, i; 331 uint16_t checksum, *ptr; 332 333 pp = cp->provider; 334 335 /* Recalculate checksum for case if metadata were changed. */ 336 meta->checksum = 0; 337 for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i < 159; i++) 338 checksum += *ptr++; 339 meta->checksum -= checksum; 340 341 /* Create and fill buffer. */ 342 buf = malloc(pp->sectorsize, M_MD_SII, M_WAITOK | M_ZERO); 343 memcpy(buf, meta, sizeof(*meta)); 344 345 /* Write 4 copies of metadata. */ 346 for (i = 0; i < 4; i++) { 347 error = g_write_data(cp, 348 pp->mediasize - (pp->sectorsize * (1 + 0x200 * i)), 349 buf, pp->sectorsize); 350 if (error != 0) { 351 G_RAID_DEBUG(1, "Cannot write metadata to %s (error=%d).", 352 pp->name, error); 353 break; 354 } 355 } 356 357 free(buf, M_MD_SII); 358 return (error); 359} 360 361static int 362sii_meta_erase(struct g_consumer *cp) 363{ 364 struct g_provider *pp; 365 char *buf; 366 int error, i; 367 368 pp = cp->provider; 369 buf = malloc(pp->sectorsize, M_MD_SII, M_WAITOK | M_ZERO); 370 /* Write 4 copies of metadata. */ 371 for (i = 0; i < 4; i++) { 372 error = g_write_data(cp, 373 pp->mediasize - (pp->sectorsize * (1 + 0x200 * i)), 374 buf, pp->sectorsize); 375 if (error != 0) { 376 G_RAID_DEBUG(1, "Cannot erase metadata on %s (error=%d).", 377 pp->name, error); 378 } 379 } 380 free(buf, M_MD_SII); 381 return (error); 382} 383 384static int 385sii_meta_write_spare(struct g_consumer *cp) 386{ 387 struct sii_raid_conf *meta; 388 int error; 389 390 meta = malloc(sizeof(*meta), M_MD_SII, M_WAITOK | M_ZERO); 391 meta->total_sectors = cp->provider->mediasize / 392 cp->provider->sectorsize - 0x800; 393 meta->vendor_id = 0x1095; 394 meta->version_minor = 0; 395 meta->version_major = 2; 396 meta->timestamp[0] = arc4random(); 397 meta->timestamp[1] = arc4random(); 398 meta->timestamp[2] = arc4random(); 399 meta->timestamp[3] = arc4random(); 400 meta->timestamp[4] = arc4random(); 401 meta->timestamp[5] = arc4random(); 402 meta->type = SII_T_SPARE; 403 meta->generation = 1; 404 meta->raid1_ident = 0xff; 405 meta->raid_location = arc4random(); 406 error = sii_meta_write(cp, meta); 407 free(meta, M_MD_SII); 408 return (error); 409} 410 411static struct g_raid_disk * 412g_raid_md_sii_get_disk(struct g_raid_softc *sc, int id) 413{ 414 struct g_raid_disk *disk; 415 struct g_raid_md_sii_perdisk *pd; 416 417 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 418 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data; 419 if (pd->pd_disk_pos == id) 420 break; 421 } 422 return (disk); 423} 424 425static int 426g_raid_md_sii_supported(int level, int qual, int disks, int force) 427{ 428 429 if (disks > 8) 430 return (0); 431 switch (level) { 432 case G_RAID_VOLUME_RL_RAID0: 433 if (disks < 1) 434 return (0); 435 if (!force && (disks < 2 || disks > 6)) 436 return (0); 437 break; 438 case G_RAID_VOLUME_RL_RAID1: 439 if (disks < 1) 440 return (0); 441 if (!force && (disks != 2)) 442 return (0); 443 break; 444 case G_RAID_VOLUME_RL_RAID1E: 445 if (disks < 2) 446 return (0); 447 if (disks % 2 != 0) 448 return (0); 449 if (!force && (disks < 4)) 450 return (0); 451 break; 452 case G_RAID_VOLUME_RL_SINGLE: 453 if (disks != 1) 454 return (0); 455 break; 456 case G_RAID_VOLUME_RL_CONCAT: 457 if (disks < 2) 458 return (0); 459 break; 460 case G_RAID_VOLUME_RL_RAID5: 461 if (disks < 3) 462 return (0); 463 if (qual != G_RAID_VOLUME_RLQ_R5LS) 464 return (0); 465 break; 466 default: 467 return (0); 468 } 469 if (level != G_RAID_VOLUME_RL_RAID5 && qual != G_RAID_VOLUME_RLQ_NONE) 470 return (0); 471 return (1); 472} 473 474static int 475g_raid_md_sii_start_disk(struct g_raid_disk *disk) 476{ 477 struct g_raid_softc *sc; 478 struct g_raid_subdisk *sd, *tmpsd; 479 struct g_raid_disk *olddisk, *tmpdisk; 480 struct g_raid_md_object *md; 481 struct g_raid_md_sii_object *mdi; 482 struct g_raid_md_sii_perdisk *pd, *oldpd; 483 struct sii_raid_conf *meta; 484 int disk_pos, resurrection = 0; 485 486 sc = disk->d_softc; 487 md = sc->sc_md; 488 mdi = (struct g_raid_md_sii_object *)md; 489 meta = mdi->mdio_meta; 490 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data; 491 olddisk = NULL; 492 493 /* Find disk position in metadata by its serial. */ 494 if (pd->pd_meta != NULL) 495 disk_pos = sii_meta_disk_pos(meta, pd->pd_meta); 496 else 497 disk_pos = -3; 498 if (disk_pos < 0) { 499 G_RAID_DEBUG1(1, sc, "Unknown, probably new or stale disk"); 500 /* If we are in the start process, that's all for now. */ 501 if (!mdi->mdio_started) 502 goto nofit; 503 /* 504 * If we have already started - try to get use of the disk. 505 * Try to replace OFFLINE disks first, then FAILED. 506 */ 507 TAILQ_FOREACH(tmpdisk, &sc->sc_disks, d_next) { 508 if (tmpdisk->d_state != G_RAID_DISK_S_OFFLINE && 509 tmpdisk->d_state != G_RAID_DISK_S_FAILED) 510 continue; 511 /* Make sure this disk is big enough. */ 512 TAILQ_FOREACH(sd, &tmpdisk->d_subdisks, sd_next) { 513 if (sd->sd_offset + sd->sd_size + 512 > 514 pd->pd_disk_size) { 515 G_RAID_DEBUG1(1, sc, 516 "Disk too small (%ju < %ju)", 517 pd->pd_disk_size, 518 sd->sd_offset + sd->sd_size + 512); 519 break; 520 } 521 } 522 if (sd != NULL) 523 continue; 524 if (tmpdisk->d_state == G_RAID_DISK_S_OFFLINE) { 525 olddisk = tmpdisk; 526 break; 527 } else if (olddisk == NULL) 528 olddisk = tmpdisk; 529 } 530 if (olddisk == NULL) { 531nofit: 532 if (disk_pos == -3 || pd->pd_disk_pos == -3) { 533 g_raid_change_disk_state(disk, 534 G_RAID_DISK_S_SPARE); 535 return (1); 536 } else { 537 g_raid_change_disk_state(disk, 538 G_RAID_DISK_S_STALE); 539 return (0); 540 } 541 } 542 oldpd = (struct g_raid_md_sii_perdisk *)olddisk->d_md_data; 543 disk_pos = oldpd->pd_disk_pos; 544 resurrection = 1; 545 } 546 547 if (olddisk == NULL) { 548 /* Find placeholder by position. */ 549 olddisk = g_raid_md_sii_get_disk(sc, disk_pos); 550 if (olddisk == NULL) 551 panic("No disk at position %d!", disk_pos); 552 if (olddisk->d_state != G_RAID_DISK_S_OFFLINE) { 553 G_RAID_DEBUG1(1, sc, "More than one disk for pos %d", 554 disk_pos); 555 g_raid_change_disk_state(disk, G_RAID_DISK_S_STALE); 556 return (0); 557 } 558 oldpd = (struct g_raid_md_sii_perdisk *)olddisk->d_md_data; 559 } 560 561 /* Replace failed disk or placeholder with new disk. */ 562 TAILQ_FOREACH_SAFE(sd, &olddisk->d_subdisks, sd_next, tmpsd) { 563 TAILQ_REMOVE(&olddisk->d_subdisks, sd, sd_next); 564 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 565 sd->sd_disk = disk; 566 } 567 oldpd->pd_disk_pos = -2; 568 pd->pd_disk_pos = disk_pos; 569 570 /* If it was placeholder -- destroy it. */ 571 if (olddisk->d_state == G_RAID_DISK_S_OFFLINE) { 572 g_raid_destroy_disk(olddisk); 573 } else { 574 /* Otherwise, make it STALE_FAILED. */ 575 g_raid_change_disk_state(olddisk, G_RAID_DISK_S_STALE_FAILED); 576 } 577 578 /* Welcome the new disk. */ 579 if (resurrection) 580 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE); 581 else if (pd->pd_meta->disk_status == SII_S_CURRENT || 582 pd->pd_meta->disk_status == SII_S_REBUILD) 583 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE); 584 else 585 g_raid_change_disk_state(disk, G_RAID_DISK_S_FAILED); 586 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 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 g_topology_unlock(); 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 if (*nargs < 4) { 1133 gctl_error(req, "Invalid number of arguments."); 1134 return (-1); 1135 } 1136 volname = gctl_get_asciiparam(req, "arg1"); 1137 if (volname == NULL) { 1138 gctl_error(req, "No volume name."); 1139 return (-2); 1140 } 1141 levelname = gctl_get_asciiparam(req, "arg2"); 1142 if (levelname == NULL) { 1143 gctl_error(req, "No RAID level."); 1144 return (-3); 1145 } 1146 if (strcasecmp(levelname, "RAID5") == 0) 1147 levelname = "RAID5-LS"; 1148 if (g_raid_volume_str2level(levelname, &level, &qual)) { 1149 gctl_error(req, "Unknown RAID level '%s'.", levelname); 1150 return (-4); 1151 } 1152 numdisks = *nargs - 3; 1153 force = gctl_get_paraml(req, "force", sizeof(*force)); 1154 if (!g_raid_md_sii_supported(level, qual, numdisks, 1155 force ? *force : 0)) { 1156 gctl_error(req, "Unsupported RAID level " 1157 "(0x%02x/0x%02x), or number of disks (%d).", 1158 level, qual, numdisks); 1159 return (-5); 1160 } 1161 1162 /* Search for disks, connect them and probe. */ 1163 size = 0x7fffffffffffffffllu; 1164 sectorsize = 0; 1165 for (i = 0; i < numdisks; i++) { 1166 snprintf(arg, sizeof(arg), "arg%d", i + 3); 1167 diskname = gctl_get_asciiparam(req, arg); 1168 if (diskname == NULL) { 1169 gctl_error(req, "No disk name (%s).", arg); 1170 error = -6; 1171 break; 1172 } 1173 if (strcmp(diskname, "NONE") == 0) { 1174 cp = NULL; 1175 pp = NULL; 1176 } else { 1177 g_topology_lock(); 1178 cp = g_raid_open_consumer(sc, diskname); 1179 if (cp == NULL) { 1180 gctl_error(req, "Can't open '%s'.", 1181 diskname); 1182 g_topology_unlock(); 1183 error = -7; 1184 break; 1185 } 1186 pp = cp->provider; 1187 } 1188 pd = malloc(sizeof(*pd), M_MD_SII, M_WAITOK | M_ZERO); 1189 pd->pd_disk_pos = i; 1190 disk = g_raid_create_disk(sc); 1191 disk->d_md_data = (void *)pd; 1192 disk->d_consumer = cp; 1193 if (cp == NULL) 1194 continue; 1195 cp->private = disk; 1196 g_topology_unlock(); 1197 1198 g_raid_get_disk_info(disk); 1199 1200 pd->pd_disk_size = pp->mediasize; 1201 if (size > pp->mediasize) 1202 size = pp->mediasize; 1203 if (sectorsize < pp->sectorsize) 1204 sectorsize = pp->sectorsize; 1205 } 1206 if (error != 0) 1207 return (error); 1208 1209 if (sectorsize <= 0) { 1210 gctl_error(req, "Can't get sector size."); 1211 return (-8); 1212 } 1213 1214 /* Reserve space for metadata. */ 1215 size -= 0x800 * sectorsize; 1216 1217 /* Handle size argument. */ 1218 len = sizeof(*sizearg); 1219 sizearg = gctl_get_param(req, "size", &len); 1220 if (sizearg != NULL && len == sizeof(*sizearg) && 1221 *sizearg > 0) { 1222 if (*sizearg > size) { 1223 gctl_error(req, "Size too big %lld > %lld.", 1224 (long long)*sizearg, (long long)size); 1225 return (-9); 1226 } 1227 size = *sizearg; 1228 } 1229 1230 /* Handle strip argument. */ 1231 strip = 131072; 1232 len = sizeof(*striparg); 1233 striparg = gctl_get_param(req, "strip", &len); 1234 if (striparg != NULL && len == sizeof(*striparg) && 1235 *striparg > 0) { 1236 if (*striparg < sectorsize) { 1237 gctl_error(req, "Strip size too small."); 1238 return (-10); 1239 } 1240 if (*striparg % sectorsize != 0) { 1241 gctl_error(req, "Incorrect strip size."); 1242 return (-11); 1243 } 1244 if (strip > 65535 * sectorsize) { 1245 gctl_error(req, "Strip size too big."); 1246 return (-12); 1247 } 1248 strip = *striparg; 1249 } 1250 1251 /* Round size down to strip or sector. */ 1252 if (level == G_RAID_VOLUME_RL_RAID1) 1253 size -= (size % sectorsize); 1254 else if (level == G_RAID_VOLUME_RL_RAID1E && 1255 (numdisks & 1) != 0) 1256 size -= (size % (2 * strip)); 1257 else 1258 size -= (size % strip); 1259 if (size <= 0) { 1260 gctl_error(req, "Size too small."); 1261 return (-13); 1262 } 1263 if (size > 0xffffffffffffllu * sectorsize) { 1264 gctl_error(req, "Size too big."); 1265 return (-14); 1266 } 1267 1268 /* We have all we need, create things: volume, ... */ 1269 mdi->mdio_total_disks = numdisks; 1270 mdi->mdio_started = 1; 1271 vol = g_raid_create_volume(sc, volname, -1); 1272 vol->v_md_data = (void *)(intptr_t)0; 1273 vol->v_raid_level = level; 1274 vol->v_raid_level_qualifier = qual; 1275 vol->v_strip_size = strip; 1276 vol->v_disks_count = numdisks; 1277 if (level == G_RAID_VOLUME_RL_RAID0 || 1278 level == G_RAID_VOLUME_RL_CONCAT || 1279 level == G_RAID_VOLUME_RL_SINGLE) 1280 vol->v_mediasize = size * numdisks; 1281 else if (level == G_RAID_VOLUME_RL_RAID1) 1282 vol->v_mediasize = size; 1283 else if (level == G_RAID_VOLUME_RL_RAID5) 1284 vol->v_mediasize = size * (numdisks - 1); 1285 else { /* RAID1E */ 1286 vol->v_mediasize = ((size * numdisks) / strip / 2) * 1287 strip; 1288 } 1289 vol->v_sectorsize = sectorsize; 1290 g_raid_start_volume(vol); 1291 1292 /* , and subdisks. */ 1293 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1294 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data; 1295 sd = &vol->v_subdisks[pd->pd_disk_pos]; 1296 sd->sd_disk = disk; 1297 sd->sd_offset = 0; 1298 sd->sd_size = size; 1299 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 1300 if (sd->sd_disk->d_consumer != NULL) { 1301 g_raid_change_disk_state(disk, 1302 G_RAID_DISK_S_ACTIVE); 1303 g_raid_change_subdisk_state(sd, 1304 G_RAID_SUBDISK_S_ACTIVE); 1305 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 1306 G_RAID_EVENT_SUBDISK); 1307 } else { 1308 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1309 } 1310 } 1311 1312 /* Write metadata based on created entities. */ 1313 G_RAID_DEBUG1(0, sc, "Array started."); 1314 g_raid_md_write_sii(md, NULL, NULL, NULL); 1315 1316 /* Pickup any STALE/SPARE disks to refill array if needed. */ 1317 g_raid_md_sii_refill(sc); 1318 1319 g_raid_event_send(vol, G_RAID_VOLUME_E_START, 1320 G_RAID_EVENT_VOLUME); 1321 return (0); 1322 } 1323 if (strcmp(verb, "delete") == 0) { 1324 /* Check if some volume is still open. */ 1325 force = gctl_get_paraml(req, "force", sizeof(*force)); 1326 if (force != NULL && *force == 0 && 1327 g_raid_nopens(sc) != 0) { 1328 gctl_error(req, "Some volume is still open."); 1329 return (-4); 1330 } 1331 1332 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1333 if (disk->d_consumer) 1334 sii_meta_erase(disk->d_consumer); 1335 } 1336 g_raid_destroy_node(sc, 0); 1337 return (0); 1338 } 1339 if (strcmp(verb, "remove") == 0 || 1340 strcmp(verb, "fail") == 0) { 1341 if (*nargs < 2) { 1342 gctl_error(req, "Invalid number of arguments."); 1343 return (-1); 1344 } 1345 for (i = 1; i < *nargs; i++) { 1346 snprintf(arg, sizeof(arg), "arg%d", i); 1347 diskname = gctl_get_asciiparam(req, arg); 1348 if (diskname == NULL) { 1349 gctl_error(req, "No disk name (%s).", arg); 1350 error = -2; 1351 break; 1352 } 1353 if (strncmp(diskname, _PATH_DEV, 5) == 0) 1354 diskname += 5; 1355 1356 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1357 if (disk->d_consumer != NULL && 1358 disk->d_consumer->provider != NULL && 1359 strcmp(disk->d_consumer->provider->name, 1360 diskname) == 0) 1361 break; 1362 } 1363 if (disk == NULL) { 1364 gctl_error(req, "Disk '%s' not found.", 1365 diskname); 1366 error = -3; 1367 break; 1368 } 1369 1370 if (strcmp(verb, "fail") == 0) { 1371 g_raid_md_fail_disk_sii(md, NULL, disk); 1372 continue; 1373 } 1374 1375 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data; 1376 1377 /* Erase metadata on deleting disk. */ 1378 sii_meta_erase(disk->d_consumer); 1379 1380 /* If disk was assigned, just update statuses. */ 1381 if (pd->pd_disk_pos >= 0) { 1382 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1383 g_raid_kill_consumer(sc, disk->d_consumer); 1384 disk->d_consumer = NULL; 1385 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 1386 g_raid_change_subdisk_state(sd, 1387 G_RAID_SUBDISK_S_NONE); 1388 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED, 1389 G_RAID_EVENT_SUBDISK); 1390 } 1391 } else { 1392 /* Otherwise -- delete. */ 1393 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 1394 g_raid_destroy_disk(disk); 1395 } 1396 } 1397 1398 /* Write updated metadata to remaining disks. */ 1399 g_raid_md_write_sii(md, NULL, NULL, NULL); 1400 1401 /* Check if anything left except placeholders. */ 1402 if (g_raid_ndisks(sc, -1) == 1403 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1404 g_raid_destroy_node(sc, 0); 1405 else 1406 g_raid_md_sii_refill(sc); 1407 return (error); 1408 } 1409 if (strcmp(verb, "insert") == 0) { 1410 if (*nargs < 2) { 1411 gctl_error(req, "Invalid number of arguments."); 1412 return (-1); 1413 } 1414 update = 0; 1415 for (i = 1; i < *nargs; i++) { 1416 /* Get disk name. */ 1417 snprintf(arg, sizeof(arg), "arg%d", i); 1418 diskname = gctl_get_asciiparam(req, arg); 1419 if (diskname == NULL) { 1420 gctl_error(req, "No disk name (%s).", arg); 1421 error = -3; 1422 break; 1423 } 1424 1425 /* Try to find provider with specified name. */ 1426 g_topology_lock(); 1427 cp = g_raid_open_consumer(sc, diskname); 1428 if (cp == NULL) { 1429 gctl_error(req, "Can't open disk '%s'.", 1430 diskname); 1431 g_topology_unlock(); 1432 error = -4; 1433 break; 1434 } 1435 pp = cp->provider; 1436 1437 pd = malloc(sizeof(*pd), M_MD_SII, M_WAITOK | M_ZERO); 1438 pd->pd_disk_pos = -3; 1439 pd->pd_disk_size = pp->mediasize; 1440 1441 disk = g_raid_create_disk(sc); 1442 disk->d_consumer = cp; 1443 disk->d_md_data = (void *)pd; 1444 cp->private = disk; 1445 g_topology_unlock(); 1446 1447 g_raid_get_disk_info(disk); 1448 1449 /* Welcome the "new" disk. */ 1450 update += g_raid_md_sii_start_disk(disk); 1451 if (disk->d_state == G_RAID_DISK_S_SPARE) { 1452 sii_meta_write_spare(cp); 1453 g_raid_destroy_disk(disk); 1454 } else if (disk->d_state != G_RAID_DISK_S_ACTIVE) { 1455 gctl_error(req, "Disk '%s' doesn't fit.", 1456 diskname); 1457 g_raid_destroy_disk(disk); 1458 error = -8; 1459 break; 1460 } 1461 } 1462 1463 /* Write new metadata if we changed something. */ 1464 if (update) 1465 g_raid_md_write_sii(md, NULL, NULL, NULL); 1466 return (error); 1467 } 1468 gctl_error(req, "Command '%s' is not supported.", verb); 1469 return (-100); 1470} 1471 1472static int 1473g_raid_md_write_sii(struct g_raid_md_object *md, struct g_raid_volume *tvol, 1474 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1475{ 1476 struct g_raid_softc *sc; 1477 struct g_raid_volume *vol; 1478 struct g_raid_subdisk *sd; 1479 struct g_raid_disk *disk; 1480 struct g_raid_md_sii_object *mdi; 1481 struct g_raid_md_sii_perdisk *pd; 1482 struct sii_raid_conf *meta; 1483 u_int i; 1484 1485 sc = md->mdo_softc; 1486 mdi = (struct g_raid_md_sii_object *)md; 1487 1488 if (sc->sc_stopping == G_RAID_DESTROY_HARD) 1489 return (0); 1490 1491 /* Bump generation. Newly written metadata may differ from previous. */ 1492 mdi->mdio_generation++; 1493 1494 /* There is only one volume. */ 1495 vol = TAILQ_FIRST(&sc->sc_volumes); 1496 1497 /* Fill global fields. */ 1498 meta = malloc(sizeof(*meta), M_MD_SII, M_WAITOK | M_ZERO); 1499 if (mdi->mdio_meta) 1500 memcpy(meta, mdi->mdio_meta, sizeof(*meta)); 1501 meta->total_sectors = vol->v_mediasize / vol->v_sectorsize; 1502 meta->vendor_id = 0x1095; 1503 meta->version_minor = 0; 1504 meta->version_major = 2; 1505 memcpy(&meta->timestamp, &mdi->mdio_timestamp, 6); 1506 meta->strip_sectors = vol->v_strip_size / vol->v_sectorsize; 1507 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID0) { 1508 meta->type = SII_T_RAID0; 1509 meta->raid0_disks = vol->v_disks_count; 1510 meta->raid1_disks = 0xff; 1511 } else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) { 1512 meta->type = SII_T_RAID1; 1513 meta->raid0_disks = 0xff; 1514 meta->raid1_disks = vol->v_disks_count; 1515 } else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) { 1516 meta->type = SII_T_RAID01; 1517 meta->raid0_disks = vol->v_disks_count / 2; 1518 meta->raid1_disks = 2; 1519 } else if (vol->v_raid_level == G_RAID_VOLUME_RL_CONCAT || 1520 vol->v_raid_level == G_RAID_VOLUME_RL_SINGLE) { 1521 meta->type = SII_T_JBOD; 1522 meta->raid0_disks = vol->v_disks_count; 1523 meta->raid1_disks = 0xff; 1524 } else { 1525 meta->type = SII_T_RAID5; 1526 meta->raid0_disks = vol->v_disks_count; 1527 meta->raid1_disks = 0xff; 1528 } 1529 meta->generation = mdi->mdio_generation; 1530 meta->raid_status = vol->v_dirty ? SII_S_ONLINE : SII_S_AVAILABLE; 1531 for (i = 0; i < vol->v_disks_count; i++) { 1532 sd = &vol->v_subdisks[i]; 1533 if (sd->sd_state == G_RAID_SUBDISK_S_STALE || 1534 sd->sd_state == G_RAID_SUBDISK_S_RESYNC) 1535 meta->raid_status = SII_S_ONLINE; 1536 } 1537 meta->raid_location = mdi->mdio_location; 1538 sii_meta_put_name(meta, vol->v_name); 1539 1540 /* We are done. Print meta data and store them to disks. */ 1541 if (mdi->mdio_meta != NULL) 1542 free(mdi->mdio_meta, M_MD_SII); 1543 mdi->mdio_meta = meta; 1544 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1545 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data; 1546 if (disk->d_state != G_RAID_DISK_S_ACTIVE) 1547 continue; 1548 if (pd->pd_meta != NULL) { 1549 free(pd->pd_meta, M_MD_SII); 1550 pd->pd_meta = NULL; 1551 } 1552 pd->pd_meta = sii_meta_copy(meta); 1553 if ((sd = TAILQ_FIRST(&disk->d_subdisks)) != NULL) { 1554 if (sd->sd_state < G_RAID_SUBDISK_S_NEW) 1555 pd->pd_meta->disk_status = SII_S_DROPPED; 1556 else if (sd->sd_state < G_RAID_SUBDISK_S_STALE) { 1557 pd->pd_meta->disk_status = SII_S_REBUILD; 1558 pd->pd_meta->rebuild_lba = 1559 sd->sd_rebuild_pos / vol->v_sectorsize; 1560 } else 1561 pd->pd_meta->disk_status = SII_S_CURRENT; 1562 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) { 1563 pd->pd_meta->disk_number = sd->sd_pos; 1564 pd->pd_meta->raid0_ident = 0xff; 1565 pd->pd_meta->raid1_ident = 0; 1566 } else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) { 1567 pd->pd_meta->disk_number = sd->sd_pos / meta->raid1_disks; 1568 pd->pd_meta->raid0_ident = sd->sd_pos % meta->raid1_disks; 1569 pd->pd_meta->raid1_ident = sd->sd_pos / meta->raid1_disks; 1570 } else { 1571 pd->pd_meta->disk_number = sd->sd_pos; 1572 pd->pd_meta->raid0_ident = 0; 1573 pd->pd_meta->raid1_ident = 0xff; 1574 } 1575 } 1576 G_RAID_DEBUG(1, "Writing SiI metadata to %s", 1577 g_raid_get_diskname(disk)); 1578 g_raid_md_sii_print(pd->pd_meta); 1579 sii_meta_write(disk->d_consumer, pd->pd_meta); 1580 } 1581 return (0); 1582} 1583 1584static int 1585g_raid_md_fail_disk_sii(struct g_raid_md_object *md, 1586 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1587{ 1588 struct g_raid_softc *sc; 1589 struct g_raid_md_sii_perdisk *pd; 1590 struct g_raid_subdisk *sd; 1591 1592 sc = md->mdo_softc; 1593 pd = (struct g_raid_md_sii_perdisk *)tdisk->d_md_data; 1594 1595 /* We can't fail disk that is not a part of array now. */ 1596 if (pd->pd_disk_pos < 0) 1597 return (-1); 1598 1599 /* 1600 * Mark disk as failed in metadata and try to write that metadata 1601 * to the disk itself to prevent it's later resurrection as STALE. 1602 */ 1603 if (tdisk->d_consumer) { 1604 if (pd->pd_meta) { 1605 pd->pd_meta->disk_status = SII_S_REMOVED; 1606 sii_meta_write(tdisk->d_consumer, pd->pd_meta); 1607 } else 1608 sii_meta_erase(tdisk->d_consumer); 1609 } 1610 1611 /* Change states. */ 1612 g_raid_change_disk_state(tdisk, G_RAID_DISK_S_FAILED); 1613 TAILQ_FOREACH(sd, &tdisk->d_subdisks, sd_next) { 1614 g_raid_change_subdisk_state(sd, 1615 G_RAID_SUBDISK_S_FAILED); 1616 g_raid_event_send(sd, G_RAID_SUBDISK_E_FAILED, 1617 G_RAID_EVENT_SUBDISK); 1618 } 1619 1620 /* Write updated metadata to remaining disks. */ 1621 g_raid_md_write_sii(md, NULL, NULL, tdisk); 1622 1623 /* Check if anything left except placeholders. */ 1624 if (g_raid_ndisks(sc, -1) == 1625 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1626 g_raid_destroy_node(sc, 0); 1627 else 1628 g_raid_md_sii_refill(sc); 1629 return (0); 1630} 1631 1632static int 1633g_raid_md_free_disk_sii(struct g_raid_md_object *md, 1634 struct g_raid_disk *disk) 1635{ 1636 struct g_raid_md_sii_perdisk *pd; 1637 1638 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data; 1639 if (pd->pd_meta != NULL) { 1640 free(pd->pd_meta, M_MD_SII); 1641 pd->pd_meta = NULL; 1642 } 1643 free(pd, M_MD_SII); 1644 disk->d_md_data = NULL; 1645 return (0); 1646} 1647 1648static int 1649g_raid_md_free_sii(struct g_raid_md_object *md) 1650{ 1651 struct g_raid_md_sii_object *mdi; 1652 1653 mdi = (struct g_raid_md_sii_object *)md; 1654 if (!mdi->mdio_started) { 1655 mdi->mdio_started = 0; 1656 callout_stop(&mdi->mdio_start_co); 1657 G_RAID_DEBUG1(1, md->mdo_softc, 1658 "root_mount_rel %p", mdi->mdio_rootmount); 1659 root_mount_rel(mdi->mdio_rootmount); 1660 mdi->mdio_rootmount = NULL; 1661 } 1662 if (mdi->mdio_meta != NULL) { 1663 free(mdi->mdio_meta, M_MD_SII); 1664 mdi->mdio_meta = NULL; 1665 } 1666 return (0); 1667} 1668 1669G_RAID_MD_DECLARE(sii, "SiI"); 1670