1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2011 Alexander Motin <mav@FreeBSD.org> 5 * Copyright (c) 2000 - 2008 Søren 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/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 #include <sys/param.h> 34 #include <sys/bio.h> 35 #include <sys/endian.h> 36 #include <sys/kernel.h> 37 #include <sys/kobj.h> 38 #include <sys/limits.h> 39 #include <sys/lock.h> 40 #include <sys/malloc.h> 41 #include <sys/mutex.h> 42 #include <sys/systm.h> 43 #include <sys/taskqueue.h> 44 #include <geom/geom.h> 45 #include "geom/raid/g_raid.h" 46 #include "g_raid_md_if.h" 47 48 static MALLOC_DEFINE(M_MD_SII, "md_sii_data", "GEOM_RAID SiI metadata"); 49 50 struct sii_raid_conf { 51 uint16_t ata_params_00_53[54]; 52 uint64_t total_sectors; /* 54 - 57 */ 53 uint16_t ata_params_58_81[72]; 54 uint16_t product_id; /* 130 */ 55 uint16_t vendor_id; /* 131 */ 56 uint16_t version_minor; /* 132 */ 57 uint16_t version_major; /* 133 */ 58 uint8_t timestamp[6]; /* 134 - 136 */ 59 uint16_t strip_sectors; /* 137 */ 60 uint16_t dummy_2; 61 uint8_t disk_number; /* 139 */ 62 uint8_t type; 63 #define SII_T_RAID0 0x00 64 #define SII_T_RAID1 0x01 65 #define SII_T_RAID01 0x02 66 #define SII_T_SPARE 0x03 67 #define SII_T_CONCAT 0x04 68 #define SII_T_RAID5 0x10 69 #define SII_T_RESERVED 0xfd 70 #define SII_T_JBOD 0xff 71 72 uint8_t raid0_disks; /* 140 */ 73 uint8_t raid0_ident; 74 uint8_t raid1_disks; /* 141 */ 75 uint8_t raid1_ident; 76 uint64_t rebuild_lba; /* 142 - 145 */ 77 uint32_t generation; /* 146 - 147 */ 78 uint8_t disk_status; /* 148 */ 79 #define SII_S_CURRENT 0x01 80 #define SII_S_REBUILD 0x02 81 #define SII_S_DROPPED 0x03 82 #define SII_S_REMOVED 0x04 83 84 uint8_t raid_status; 85 #define SII_S_ONLINE 0x01 86 #define SII_S_AVAILABLE 0x02 87 88 uint8_t raid_location; /* 149 */ 89 uint8_t disk_location; 90 uint8_t auto_rebuild; /* 150 */ 91 #define SII_R_REBUILD 0x00 92 #define SII_R_NOREBUILD 0xff 93 94 uint8_t dummy_3; 95 uint8_t name[16]; /* 151 - 158 */ 96 uint16_t checksum; /* 159 */ 97 uint16_t ata_params_160_255[96]; 98 } __packed; 99 100 struct g_raid_md_sii_perdisk { 101 struct sii_raid_conf *pd_meta; 102 int pd_disk_pos; 103 off_t pd_disk_size; 104 }; 105 106 struct g_raid_md_sii_object { 107 struct g_raid_md_object mdio_base; 108 uint8_t mdio_timestamp[6]; 109 uint8_t mdio_location; 110 uint32_t mdio_generation; 111 struct sii_raid_conf *mdio_meta; 112 struct callout mdio_start_co; /* STARTING state timer. */ 113 int mdio_total_disks; 114 int mdio_disks_present; 115 int mdio_started; 116 int mdio_incomplete; 117 struct root_hold_token *mdio_rootmount; /* Root mount delay token. */ 118 }; 119 120 static g_raid_md_create_t g_raid_md_create_sii; 121 static g_raid_md_taste_t g_raid_md_taste_sii; 122 static g_raid_md_event_t g_raid_md_event_sii; 123 static g_raid_md_ctl_t g_raid_md_ctl_sii; 124 static g_raid_md_write_t g_raid_md_write_sii; 125 static g_raid_md_fail_disk_t g_raid_md_fail_disk_sii; 126 static g_raid_md_free_disk_t g_raid_md_free_disk_sii; 127 static g_raid_md_free_t g_raid_md_free_sii; 128 129 static kobj_method_t g_raid_md_sii_methods[] = { 130 KOBJMETHOD(g_raid_md_create, g_raid_md_create_sii), 131 KOBJMETHOD(g_raid_md_taste, g_raid_md_taste_sii), 132 KOBJMETHOD(g_raid_md_event, g_raid_md_event_sii), 133 KOBJMETHOD(g_raid_md_ctl, g_raid_md_ctl_sii), 134 KOBJMETHOD(g_raid_md_write, g_raid_md_write_sii), 135 KOBJMETHOD(g_raid_md_fail_disk, g_raid_md_fail_disk_sii), 136 KOBJMETHOD(g_raid_md_free_disk, g_raid_md_free_disk_sii), 137 KOBJMETHOD(g_raid_md_free, g_raid_md_free_sii), 138 { 0, 0 } 139 }; 140 141 static struct g_raid_md_class g_raid_md_sii_class = { 142 "SiI", 143 g_raid_md_sii_methods, 144 sizeof(struct g_raid_md_sii_object), 145 .mdc_enable = 1, 146 .mdc_priority = 100 147 }; 148 149 static void 150 g_raid_md_sii_print(struct sii_raid_conf *meta) 151 { 152 153 if (g_raid_debug < 1) 154 return; 155 156 printf("********* ATA SiI RAID Metadata *********\n"); 157 printf("total_sectors %llu\n", 158 (long long unsigned)meta->total_sectors); 159 printf("product_id 0x%04x\n", meta->product_id); 160 printf("vendor_id 0x%04x\n", meta->vendor_id); 161 printf("version_minor 0x%04x\n", meta->version_minor); 162 printf("version_major 0x%04x\n", meta->version_major); 163 printf("timestamp 0x%02x%02x%02x%02x%02x%02x\n", 164 meta->timestamp[5], meta->timestamp[4], meta->timestamp[3], 165 meta->timestamp[2], meta->timestamp[1], meta->timestamp[0]); 166 printf("strip_sectors %d\n", meta->strip_sectors); 167 printf("disk_number %d\n", meta->disk_number); 168 printf("type 0x%02x\n", meta->type); 169 printf("raid0_disks %d\n", meta->raid0_disks); 170 printf("raid0_ident %d\n", meta->raid0_ident); 171 printf("raid1_disks %d\n", meta->raid1_disks); 172 printf("raid1_ident %d\n", meta->raid1_ident); 173 printf("rebuild_lba %llu\n", 174 (long long unsigned)meta->rebuild_lba); 175 printf("generation %d\n", meta->generation); 176 printf("disk_status %d\n", meta->disk_status); 177 printf("raid_status %d\n", meta->raid_status); 178 printf("raid_location %d\n", meta->raid_location); 179 printf("disk_location %d\n", meta->disk_location); 180 printf("auto_rebuild %d\n", meta->auto_rebuild); 181 printf("name <%.16s>\n", meta->name); 182 printf("checksum 0x%04x\n", meta->checksum); 183 printf("=================================================\n"); 184 } 185 186 static struct sii_raid_conf * 187 sii_meta_copy(struct sii_raid_conf *meta) 188 { 189 struct sii_raid_conf *nmeta; 190 191 nmeta = malloc(sizeof(*meta), M_MD_SII, M_WAITOK); 192 memcpy(nmeta, meta, sizeof(*meta)); 193 return (nmeta); 194 } 195 196 static int 197 sii_meta_total_disks(struct sii_raid_conf *meta) 198 { 199 200 switch (meta->type) { 201 case SII_T_RAID0: 202 case SII_T_RAID5: 203 case SII_T_CONCAT: 204 return (meta->raid0_disks); 205 case SII_T_RAID1: 206 return (meta->raid1_disks); 207 case SII_T_RAID01: 208 return (meta->raid0_disks * meta->raid1_disks); 209 case SII_T_SPARE: 210 case SII_T_JBOD: 211 return (1); 212 } 213 return (0); 214 } 215 216 static int 217 sii_meta_disk_pos(struct sii_raid_conf *meta, struct sii_raid_conf *pdmeta) 218 { 219 220 if (pdmeta->type == SII_T_SPARE) 221 return (-3); 222 223 if (memcmp(&meta->timestamp, &pdmeta->timestamp, 6) != 0) 224 return (-1); 225 226 switch (pdmeta->type) { 227 case SII_T_RAID0: 228 case SII_T_RAID1: 229 case SII_T_RAID5: 230 case SII_T_CONCAT: 231 return (pdmeta->disk_number); 232 case SII_T_RAID01: 233 return (pdmeta->raid1_ident * pdmeta->raid1_disks + 234 pdmeta->raid0_ident); 235 case SII_T_JBOD: 236 return (0); 237 } 238 return (-1); 239 } 240 241 static void 242 sii_meta_get_name(struct sii_raid_conf *meta, char *buf) 243 { 244 int i; 245 246 strncpy(buf, meta->name, 16); 247 buf[16] = 0; 248 for (i = 15; i >= 0; i--) { 249 if (buf[i] > 0x20) 250 break; 251 buf[i] = 0; 252 } 253 } 254 255 static void 256 sii_meta_put_name(struct sii_raid_conf *meta, char *buf) 257 { 258 259 memset(meta->name, 0x20, 16); 260 memcpy(meta->name, buf, MIN(strlen(buf), 16)); 261 } 262 263 static struct sii_raid_conf * 264 sii_meta_read(struct g_consumer *cp) 265 { 266 struct g_provider *pp; 267 struct sii_raid_conf *meta; 268 char *buf; 269 int error, i; 270 uint16_t checksum, *ptr; 271 272 pp = cp->provider; 273 274 /* Read the anchor sector. */ 275 buf = g_read_data(cp, 276 pp->mediasize - pp->sectorsize, pp->sectorsize, &error); 277 if (buf == NULL) { 278 G_RAID_DEBUG(1, "Cannot read metadata from %s (error=%d).", 279 pp->name, error); 280 return (NULL); 281 } 282 meta = (struct sii_raid_conf *)buf; 283 284 /* Check vendor ID. */ 285 if (meta->vendor_id != 0x1095) { 286 G_RAID_DEBUG(1, "SiI vendor ID check failed on %s (0x%04x)", 287 pp->name, meta->vendor_id); 288 g_free(buf); 289 return (NULL); 290 } 291 292 /* Check metadata major version. */ 293 if (meta->version_major != 2) { 294 G_RAID_DEBUG(1, "SiI version check failed on %s (%d.%d)", 295 pp->name, meta->version_major, meta->version_minor); 296 g_free(buf); 297 return (NULL); 298 } 299 meta = malloc(sizeof(*meta), M_MD_SII, M_WAITOK); 300 memcpy(meta, buf, min(sizeof(*meta), pp->sectorsize)); 301 g_free(buf); 302 303 /* Check metadata checksum. */ 304 for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i <= 159; i++) 305 checksum += *ptr++; 306 if (checksum != 0) { 307 G_RAID_DEBUG(1, "SiI checksum check failed on %s", pp->name); 308 free(meta, M_MD_SII); 309 return (NULL); 310 } 311 312 /* Check raid type. */ 313 if (meta->type != SII_T_RAID0 && meta->type != SII_T_RAID1 && 314 meta->type != SII_T_RAID01 && meta->type != SII_T_SPARE && 315 meta->type != SII_T_RAID5 && meta->type != SII_T_CONCAT && 316 meta->type != SII_T_JBOD) { 317 G_RAID_DEBUG(1, "SiI unknown RAID level on %s (0x%02x)", 318 pp->name, meta->type); 319 free(meta, M_MD_SII); 320 return (NULL); 321 } 322 323 return (meta); 324 } 325 326 static int 327 sii_meta_write(struct g_consumer *cp, struct sii_raid_conf *meta) 328 { 329 struct g_provider *pp; 330 char *buf; 331 int error, i; 332 uint16_t checksum, *ptr; 333 334 pp = cp->provider; 335 336 /* Recalculate checksum for case if metadata were changed. */ 337 meta->checksum = 0; 338 for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i < 159; i++) 339 checksum += *ptr++; 340 meta->checksum -= checksum; 341 342 /* Create and fill buffer. */ 343 buf = malloc(pp->sectorsize, M_MD_SII, M_WAITOK | M_ZERO); 344 memcpy(buf, meta, sizeof(*meta)); 345 346 /* Write 4 copies of metadata. */ 347 for (i = 0; i < 4; i++) { 348 error = g_write_data(cp, 349 pp->mediasize - (pp->sectorsize * (1 + 0x200 * i)), 350 buf, pp->sectorsize); 351 if (error != 0) { 352 G_RAID_DEBUG(1, "Cannot write metadata to %s (error=%d).", 353 pp->name, error); 354 break; 355 } 356 } 357 358 free(buf, M_MD_SII); 359 return (error); 360 } 361 362 static int 363 sii_meta_erase(struct g_consumer *cp) 364 { 365 struct g_provider *pp; 366 char *buf; 367 int error, i; 368 369 pp = cp->provider; 370 buf = malloc(pp->sectorsize, M_MD_SII, M_WAITOK | M_ZERO); 371 /* Write 4 copies of metadata. */ 372 for (i = 0; i < 4; i++) { 373 error = g_write_data(cp, 374 pp->mediasize - (pp->sectorsize * (1 + 0x200 * i)), 375 buf, pp->sectorsize); 376 if (error != 0) { 377 G_RAID_DEBUG(1, "Cannot erase metadata on %s (error=%d).", 378 pp->name, error); 379 } 380 } 381 free(buf, M_MD_SII); 382 return (error); 383 } 384 385 static int 386 sii_meta_write_spare(struct g_consumer *cp) 387 { 388 struct sii_raid_conf *meta; 389 int error; 390 391 meta = malloc(sizeof(*meta), M_MD_SII, M_WAITOK | M_ZERO); 392 meta->total_sectors = cp->provider->mediasize / 393 cp->provider->sectorsize - 0x800; 394 meta->vendor_id = 0x1095; 395 meta->version_minor = 0; 396 meta->version_major = 2; 397 meta->timestamp[0] = arc4random(); 398 meta->timestamp[1] = arc4random(); 399 meta->timestamp[2] = arc4random(); 400 meta->timestamp[3] = arc4random(); 401 meta->timestamp[4] = arc4random(); 402 meta->timestamp[5] = arc4random(); 403 meta->type = SII_T_SPARE; 404 meta->generation = 1; 405 meta->raid1_ident = 0xff; 406 meta->raid_location = arc4random(); 407 error = sii_meta_write(cp, meta); 408 free(meta, M_MD_SII); 409 return (error); 410 } 411 412 static struct g_raid_disk * 413 g_raid_md_sii_get_disk(struct g_raid_softc *sc, int id) 414 { 415 struct g_raid_disk *disk; 416 struct g_raid_md_sii_perdisk *pd; 417 418 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 419 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data; 420 if (pd->pd_disk_pos == id) 421 break; 422 } 423 return (disk); 424 } 425 426 static int 427 g_raid_md_sii_supported(int level, int qual, int disks, int force) 428 { 429 430 if (disks > 8) 431 return (0); 432 switch (level) { 433 case G_RAID_VOLUME_RL_RAID0: 434 if (disks < 1) 435 return (0); 436 if (!force && (disks < 2 || disks > 6)) 437 return (0); 438 break; 439 case G_RAID_VOLUME_RL_RAID1: 440 if (disks < 1) 441 return (0); 442 if (!force && (disks != 2)) 443 return (0); 444 break; 445 case G_RAID_VOLUME_RL_RAID1E: 446 if (disks < 2) 447 return (0); 448 if (disks % 2 != 0) 449 return (0); 450 if (!force && (disks < 4)) 451 return (0); 452 break; 453 case G_RAID_VOLUME_RL_SINGLE: 454 if (disks != 1) 455 return (0); 456 break; 457 case G_RAID_VOLUME_RL_CONCAT: 458 if (disks < 2) 459 return (0); 460 break; 461 case G_RAID_VOLUME_RL_RAID5: 462 if (disks < 3) 463 return (0); 464 if (qual != G_RAID_VOLUME_RLQ_R5LS) 465 return (0); 466 break; 467 default: 468 return (0); 469 } 470 if (level != G_RAID_VOLUME_RL_RAID5 && qual != G_RAID_VOLUME_RLQ_NONE) 471 return (0); 472 return (1); 473 } 474 475 static int 476 g_raid_md_sii_start_disk(struct g_raid_disk *disk) 477 { 478 struct g_raid_softc *sc; 479 struct g_raid_subdisk *sd, *tmpsd; 480 struct g_raid_disk *olddisk, *tmpdisk; 481 struct g_raid_md_object *md; 482 struct g_raid_md_sii_object *mdi; 483 struct g_raid_md_sii_perdisk *pd, *oldpd; 484 struct sii_raid_conf *meta; 485 int disk_pos, resurrection = 0; 486 487 sc = disk->d_softc; 488 md = sc->sc_md; 489 mdi = (struct g_raid_md_sii_object *)md; 490 meta = mdi->mdio_meta; 491 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data; 492 olddisk = NULL; 493 494 /* Find disk position in metadata by its serial. */ 495 if (pd->pd_meta != NULL) 496 disk_pos = sii_meta_disk_pos(meta, pd->pd_meta); 497 else 498 disk_pos = -3; 499 if (disk_pos < 0) { 500 G_RAID_DEBUG1(1, sc, "Unknown, probably new or stale disk"); 501 /* If we are in the start process, that's all for now. */ 502 if (!mdi->mdio_started) 503 goto nofit; 504 /* 505 * If we have already started - try to get use of the disk. 506 * Try to replace OFFLINE disks first, then FAILED. 507 */ 508 TAILQ_FOREACH(tmpdisk, &sc->sc_disks, d_next) { 509 if (tmpdisk->d_state != G_RAID_DISK_S_OFFLINE && 510 tmpdisk->d_state != G_RAID_DISK_S_FAILED) 511 continue; 512 /* Make sure this disk is big enough. */ 513 TAILQ_FOREACH(sd, &tmpdisk->d_subdisks, sd_next) { 514 if (sd->sd_offset + sd->sd_size + 512 > 515 pd->pd_disk_size) { 516 G_RAID_DEBUG1(1, sc, 517 "Disk too small (%ju < %ju)", 518 pd->pd_disk_size, 519 sd->sd_offset + sd->sd_size + 512); 520 break; 521 } 522 } 523 if (sd != NULL) 524 continue; 525 if (tmpdisk->d_state == G_RAID_DISK_S_OFFLINE) { 526 olddisk = tmpdisk; 527 break; 528 } else if (olddisk == NULL) 529 olddisk = tmpdisk; 530 } 531 if (olddisk == NULL) { 532 nofit: 533 if (disk_pos == -3 || pd->pd_disk_pos == -3) { 534 g_raid_change_disk_state(disk, 535 G_RAID_DISK_S_SPARE); 536 return (1); 537 } else { 538 g_raid_change_disk_state(disk, 539 G_RAID_DISK_S_STALE); 540 return (0); 541 } 542 } 543 oldpd = (struct g_raid_md_sii_perdisk *)olddisk->d_md_data; 544 disk_pos = oldpd->pd_disk_pos; 545 resurrection = 1; 546 } 547 548 if (olddisk == NULL) { 549 /* Find placeholder by position. */ 550 olddisk = g_raid_md_sii_get_disk(sc, disk_pos); 551 if (olddisk == NULL) 552 panic("No disk at position %d!", disk_pos); 553 if (olddisk->d_state != G_RAID_DISK_S_OFFLINE) { 554 G_RAID_DEBUG1(1, sc, "More than one disk for pos %d", 555 disk_pos); 556 g_raid_change_disk_state(disk, G_RAID_DISK_S_STALE); 557 return (0); 558 } 559 oldpd = (struct g_raid_md_sii_perdisk *)olddisk->d_md_data; 560 } 561 562 /* Replace failed disk or placeholder with new disk. */ 563 TAILQ_FOREACH_SAFE(sd, &olddisk->d_subdisks, sd_next, tmpsd) { 564 TAILQ_REMOVE(&olddisk->d_subdisks, sd, sd_next); 565 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 566 sd->sd_disk = disk; 567 } 568 oldpd->pd_disk_pos = -2; 569 pd->pd_disk_pos = disk_pos; 570 571 /* If it was placeholder -- destroy it. */ 572 if (olddisk->d_state == G_RAID_DISK_S_OFFLINE) { 573 g_raid_destroy_disk(olddisk); 574 } else { 575 /* Otherwise, make it STALE_FAILED. */ 576 g_raid_change_disk_state(olddisk, G_RAID_DISK_S_STALE_FAILED); 577 } 578 579 /* Welcome the new disk. */ 580 if (resurrection) 581 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE); 582 else if (pd->pd_meta->disk_status == SII_S_CURRENT || 583 pd->pd_meta->disk_status == SII_S_REBUILD) 584 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE); 585 else 586 g_raid_change_disk_state(disk, G_RAID_DISK_S_FAILED); 587 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 588 589 /* 590 * Different disks may have different sizes, 591 * in concat mode. Update from real disk size. 592 */ 593 if (meta->type == SII_T_CONCAT || meta->type == SII_T_JBOD) 594 sd->sd_size = pd->pd_disk_size - 0x800 * 512; 595 596 if (resurrection) { 597 /* New or ex-spare disk. */ 598 g_raid_change_subdisk_state(sd, 599 G_RAID_SUBDISK_S_NEW); 600 } else if (pd->pd_meta->disk_status == SII_S_REBUILD) { 601 /* Rebuilding disk. */ 602 g_raid_change_subdisk_state(sd, 603 G_RAID_SUBDISK_S_REBUILD); 604 if (pd->pd_meta->generation == meta->generation) 605 sd->sd_rebuild_pos = pd->pd_meta->rebuild_lba * 512; 606 else 607 sd->sd_rebuild_pos = 0; 608 } else if (pd->pd_meta->disk_status == SII_S_CURRENT) { 609 if (pd->pd_meta->raid_status == SII_S_ONLINE || 610 pd->pd_meta->generation != meta->generation) { 611 /* Dirty or resyncing disk. */ 612 g_raid_change_subdisk_state(sd, 613 G_RAID_SUBDISK_S_STALE); 614 } else { 615 /* Up to date disk. */ 616 g_raid_change_subdisk_state(sd, 617 G_RAID_SUBDISK_S_ACTIVE); 618 } 619 } else { 620 g_raid_change_subdisk_state(sd, 621 G_RAID_SUBDISK_S_FAILED); 622 } 623 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 624 G_RAID_EVENT_SUBDISK); 625 } 626 627 /* Update status of our need for spare. */ 628 if (mdi->mdio_started) { 629 mdi->mdio_incomplete = 630 (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < 631 mdi->mdio_total_disks); 632 } 633 634 return (resurrection); 635 } 636 637 static void 638 g_disk_md_sii_retaste(void *arg, int pending) 639 { 640 641 G_RAID_DEBUG(1, "Array is not complete, trying to retaste."); 642 g_retaste(&g_raid_class); 643 free(arg, M_MD_SII); 644 } 645 646 static void 647 g_raid_md_sii_refill(struct g_raid_softc *sc) 648 { 649 struct g_raid_md_object *md; 650 struct g_raid_md_sii_object *mdi; 651 struct g_raid_disk *disk; 652 struct task *task; 653 int update, na; 654 655 md = sc->sc_md; 656 mdi = (struct g_raid_md_sii_object *)md; 657 update = 0; 658 do { 659 /* Make sure we miss anything. */ 660 na = g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE); 661 if (na == mdi->mdio_total_disks) 662 break; 663 664 G_RAID_DEBUG1(1, md->mdo_softc, 665 "Array is not complete (%d of %d), " 666 "trying to refill.", na, mdi->mdio_total_disks); 667 668 /* Try to get use some of STALE disks. */ 669 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 670 if (disk->d_state == G_RAID_DISK_S_STALE) { 671 update += g_raid_md_sii_start_disk(disk); 672 if (disk->d_state == G_RAID_DISK_S_ACTIVE) 673 break; 674 } 675 } 676 if (disk != NULL) 677 continue; 678 679 /* Try to get use some of SPARE disks. */ 680 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 681 if (disk->d_state == G_RAID_DISK_S_SPARE) { 682 update += g_raid_md_sii_start_disk(disk); 683 if (disk->d_state == G_RAID_DISK_S_ACTIVE) 684 break; 685 } 686 } 687 } while (disk != NULL); 688 689 /* Write new metadata if we changed something. */ 690 if (update) 691 g_raid_md_write_sii(md, NULL, NULL, NULL); 692 693 /* Update status of our need for spare. */ 694 mdi->mdio_incomplete = (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < 695 mdi->mdio_total_disks); 696 697 /* Request retaste hoping to find spare. */ 698 if (mdi->mdio_incomplete) { 699 task = malloc(sizeof(struct task), 700 M_MD_SII, M_WAITOK | M_ZERO); 701 TASK_INIT(task, 0, g_disk_md_sii_retaste, task); 702 taskqueue_enqueue(taskqueue_swi, task); 703 } 704 } 705 706 static void 707 g_raid_md_sii_start(struct g_raid_softc *sc) 708 { 709 struct g_raid_md_object *md; 710 struct g_raid_md_sii_object *mdi; 711 struct g_raid_md_sii_perdisk *pd; 712 struct sii_raid_conf *meta; 713 struct g_raid_volume *vol; 714 struct g_raid_subdisk *sd; 715 struct g_raid_disk *disk, *best; 716 off_t size; 717 int j, disk_pos; 718 uint32_t gendiff, bestgendiff; 719 char buf[17]; 720 721 md = sc->sc_md; 722 mdi = (struct g_raid_md_sii_object *)md; 723 meta = mdi->mdio_meta; 724 725 /* Create volumes and subdisks. */ 726 sii_meta_get_name(meta, buf); 727 vol = g_raid_create_volume(sc, buf, -1); 728 vol->v_mediasize = (off_t)meta->total_sectors * 512; 729 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_NONE; 730 if (meta->type == SII_T_RAID0) { 731 vol->v_raid_level = G_RAID_VOLUME_RL_RAID0; 732 size = vol->v_mediasize / mdi->mdio_total_disks; 733 } else if (meta->type == SII_T_RAID1) { 734 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1; 735 size = vol->v_mediasize; 736 } else if (meta->type == SII_T_RAID01) { 737 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1E; 738 size = vol->v_mediasize / (mdi->mdio_total_disks / 2); 739 } else if (meta->type == SII_T_CONCAT) { 740 if (mdi->mdio_total_disks == 1) 741 vol->v_raid_level = G_RAID_VOLUME_RL_SINGLE; 742 else 743 vol->v_raid_level = G_RAID_VOLUME_RL_CONCAT; 744 size = 0; 745 } else if (meta->type == SII_T_RAID5) { 746 vol->v_raid_level = G_RAID_VOLUME_RL_RAID5; 747 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_R5LS; 748 size = vol->v_mediasize / (mdi->mdio_total_disks - 1); 749 } else if (meta->type == SII_T_JBOD) { 750 vol->v_raid_level = G_RAID_VOLUME_RL_SINGLE; 751 size = 0; 752 } else { 753 vol->v_raid_level = G_RAID_VOLUME_RL_UNKNOWN; 754 size = 0; 755 } 756 vol->v_strip_size = meta->strip_sectors * 512; //ZZZ 757 vol->v_disks_count = mdi->mdio_total_disks; 758 vol->v_sectorsize = 512; //ZZZ 759 for (j = 0; j < vol->v_disks_count; j++) { 760 sd = &vol->v_subdisks[j]; 761 sd->sd_offset = 0; 762 sd->sd_size = size; 763 } 764 g_raid_start_volume(vol); 765 766 /* Create disk placeholders to store data for later writing. */ 767 for (disk_pos = 0; disk_pos < mdi->mdio_total_disks; disk_pos++) { 768 pd = malloc(sizeof(*pd), M_MD_SII, M_WAITOK | M_ZERO); 769 pd->pd_disk_pos = disk_pos; 770 disk = g_raid_create_disk(sc); 771 disk->d_md_data = (void *)pd; 772 disk->d_state = G_RAID_DISK_S_OFFLINE; 773 sd = &vol->v_subdisks[disk_pos]; 774 sd->sd_disk = disk; 775 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 776 } 777 778 /* 779 * Make all disks found till the moment take their places 780 * in order of their generation numbers. 781 */ 782 do { 783 best = NULL; 784 bestgendiff = 0xffffffff; 785 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 786 if (disk->d_state != G_RAID_DISK_S_NONE) 787 continue; 788 pd = disk->d_md_data; 789 if (pd->pd_meta == NULL) 790 gendiff = 0xfffffffe; 791 else 792 gendiff = meta->generation - 793 pd->pd_meta->generation; 794 if (gendiff < bestgendiff) { 795 best = disk; 796 bestgendiff = gendiff; 797 } 798 } 799 if (best != NULL) 800 g_raid_md_sii_start_disk(best); 801 } while (best != NULL); 802 803 mdi->mdio_started = 1; 804 G_RAID_DEBUG1(0, sc, "Array started."); 805 g_raid_md_write_sii(md, NULL, NULL, NULL); 806 807 /* Pickup any STALE/SPARE disks to refill array if needed. */ 808 g_raid_md_sii_refill(sc); 809 810 g_raid_event_send(vol, G_RAID_VOLUME_E_START, G_RAID_EVENT_VOLUME); 811 812 callout_stop(&mdi->mdio_start_co); 813 G_RAID_DEBUG1(1, sc, "root_mount_rel %p", mdi->mdio_rootmount); 814 root_mount_rel(mdi->mdio_rootmount); 815 mdi->mdio_rootmount = NULL; 816 } 817 818 static void 819 g_raid_md_sii_new_disk(struct g_raid_disk *disk) 820 { 821 struct g_raid_softc *sc; 822 struct g_raid_md_object *md; 823 struct g_raid_md_sii_object *mdi; 824 struct sii_raid_conf *pdmeta; 825 struct g_raid_md_sii_perdisk *pd; 826 827 sc = disk->d_softc; 828 md = sc->sc_md; 829 mdi = (struct g_raid_md_sii_object *)md; 830 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data; 831 pdmeta = pd->pd_meta; 832 833 if (mdi->mdio_started) { 834 if (g_raid_md_sii_start_disk(disk)) 835 g_raid_md_write_sii(md, NULL, NULL, NULL); 836 } else { 837 if (mdi->mdio_meta == NULL || 838 ((int32_t)(pdmeta->generation - mdi->mdio_generation)) > 0) { 839 G_RAID_DEBUG1(1, sc, "Newer disk"); 840 if (mdi->mdio_meta != NULL) 841 free(mdi->mdio_meta, M_MD_SII); 842 mdi->mdio_meta = sii_meta_copy(pdmeta); 843 mdi->mdio_generation = mdi->mdio_meta->generation; 844 mdi->mdio_total_disks = sii_meta_total_disks(pdmeta); 845 mdi->mdio_disks_present = 1; 846 } else if (pdmeta->generation == mdi->mdio_generation) { 847 mdi->mdio_disks_present++; 848 G_RAID_DEBUG1(1, sc, "Matching disk (%d of %d up)", 849 mdi->mdio_disks_present, 850 mdi->mdio_total_disks); 851 } else { 852 G_RAID_DEBUG1(1, sc, "Older disk"); 853 } 854 855 /* If we collected all needed disks - start array. */ 856 if (mdi->mdio_disks_present == mdi->mdio_total_disks) 857 g_raid_md_sii_start(sc); 858 } 859 } 860 861 static void 862 g_raid_sii_go(void *arg) 863 { 864 struct g_raid_softc *sc; 865 struct g_raid_md_object *md; 866 struct g_raid_md_sii_object *mdi; 867 868 sc = arg; 869 md = sc->sc_md; 870 mdi = (struct g_raid_md_sii_object *)md; 871 if (!mdi->mdio_started) { 872 G_RAID_DEBUG1(0, sc, "Force array start due to timeout."); 873 g_raid_event_send(sc, G_RAID_NODE_E_START, 0); 874 } 875 } 876 877 static int 878 g_raid_md_create_sii(struct g_raid_md_object *md, struct g_class *mp, 879 struct g_geom **gp) 880 { 881 struct g_raid_softc *sc; 882 struct g_raid_md_sii_object *mdi; 883 char name[32]; 884 885 mdi = (struct g_raid_md_sii_object *)md; 886 mdi->mdio_timestamp[5] = arc4random(); 887 mdi->mdio_timestamp[4] = arc4random(); 888 mdi->mdio_timestamp[3] = arc4random(); 889 mdi->mdio_timestamp[2] = arc4random(); 890 mdi->mdio_timestamp[1] = arc4random(); 891 mdi->mdio_timestamp[0] = arc4random(); 892 mdi->mdio_location = arc4random(); 893 mdi->mdio_generation = 0; 894 snprintf(name, sizeof(name), "SiI-%02x%02x%02x%02x%02x%02x", 895 mdi->mdio_timestamp[5], mdi->mdio_timestamp[4], 896 mdi->mdio_timestamp[3], mdi->mdio_timestamp[2], 897 mdi->mdio_timestamp[1], mdi->mdio_timestamp[0]); 898 sc = g_raid_create_node(mp, name, md); 899 if (sc == NULL) 900 return (G_RAID_MD_TASTE_FAIL); 901 md->mdo_softc = sc; 902 *gp = sc->sc_geom; 903 return (G_RAID_MD_TASTE_NEW); 904 } 905 906 static int 907 g_raid_md_taste_sii(struct g_raid_md_object *md, struct g_class *mp, 908 struct g_consumer *cp, struct g_geom **gp) 909 { 910 struct g_consumer *rcp; 911 struct g_provider *pp; 912 struct g_raid_md_sii_object *mdi, *mdi1; 913 struct g_raid_softc *sc; 914 struct g_raid_disk *disk; 915 struct sii_raid_conf *meta; 916 struct g_raid_md_sii_perdisk *pd; 917 struct g_geom *geom; 918 int disk_pos, result, spare, len; 919 char name[32]; 920 uint16_t vendor; 921 922 G_RAID_DEBUG(1, "Tasting SiI on %s", cp->provider->name); 923 mdi = (struct g_raid_md_sii_object *)md; 924 pp = cp->provider; 925 926 /* Read metadata from device. */ 927 meta = NULL; 928 g_topology_unlock(); 929 vendor = 0xffff; 930 len = sizeof(vendor); 931 if (pp->geom->rank == 1) 932 g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor); 933 meta = sii_meta_read(cp); 934 g_topology_lock(); 935 if (meta == NULL) { 936 if (g_raid_aggressive_spare) { 937 if (vendor == 0x1095) { 938 G_RAID_DEBUG(1, 939 "No SiI metadata, forcing spare."); 940 spare = 2; 941 goto search; 942 } else { 943 G_RAID_DEBUG(1, 944 "SiI vendor mismatch 0x%04x != 0x1095", 945 vendor); 946 } 947 } 948 return (G_RAID_MD_TASTE_FAIL); 949 } 950 951 /* Check this disk position in obtained metadata. */ 952 disk_pos = sii_meta_disk_pos(meta, meta); 953 if (disk_pos == -1) { 954 G_RAID_DEBUG(1, "SiI disk position not found"); 955 goto fail1; 956 } 957 958 /* Metadata valid. Print it. */ 959 g_raid_md_sii_print(meta); 960 G_RAID_DEBUG(1, "SiI disk position %d", disk_pos); 961 spare = (meta->type == SII_T_SPARE) ? 1 : 0; 962 963 search: 964 /* Search for matching node. */ 965 sc = NULL; 966 mdi1 = NULL; 967 LIST_FOREACH(geom, &mp->geom, geom) { 968 sc = geom->softc; 969 if (sc == NULL) 970 continue; 971 if (sc->sc_stopping != 0) 972 continue; 973 if (sc->sc_md->mdo_class != md->mdo_class) 974 continue; 975 mdi1 = (struct g_raid_md_sii_object *)sc->sc_md; 976 if (spare) { 977 if (mdi1->mdio_incomplete) 978 break; 979 } else { 980 if (mdi1->mdio_location == meta->raid_location && 981 memcmp(&mdi1->mdio_timestamp, 982 &meta->timestamp, 6) == 0) 983 break; 984 } 985 } 986 987 /* Found matching node. */ 988 if (geom != NULL) { 989 G_RAID_DEBUG(1, "Found matching array %s", sc->sc_name); 990 result = G_RAID_MD_TASTE_EXISTING; 991 992 } else if (spare) { /* Not found needy node -- left for later. */ 993 G_RAID_DEBUG(1, "Spare is not needed at this time"); 994 goto fail1; 995 996 } else { /* Not found matching node -- create one. */ 997 result = G_RAID_MD_TASTE_NEW; 998 memcpy(&mdi->mdio_timestamp, &meta->timestamp, 6); 999 mdi->mdio_location = meta->raid_location; 1000 snprintf(name, sizeof(name), "SiI-%02x%02x%02x%02x%02x%02x", 1001 mdi->mdio_timestamp[5], mdi->mdio_timestamp[4], 1002 mdi->mdio_timestamp[3], mdi->mdio_timestamp[2], 1003 mdi->mdio_timestamp[1], mdi->mdio_timestamp[0]); 1004 sc = g_raid_create_node(mp, name, md); 1005 md->mdo_softc = sc; 1006 geom = sc->sc_geom; 1007 callout_init(&mdi->mdio_start_co, 1); 1008 callout_reset(&mdi->mdio_start_co, g_raid_start_timeout * hz, 1009 g_raid_sii_go, sc); 1010 mdi->mdio_rootmount = root_mount_hold("GRAID-SiI"); 1011 G_RAID_DEBUG1(1, sc, "root_mount_hold %p", mdi->mdio_rootmount); 1012 } 1013 1014 /* There is no return after this point, so we close passed consumer. */ 1015 g_access(cp, -1, 0, 0); 1016 1017 rcp = g_new_consumer(geom); 1018 rcp->flags |= G_CF_DIRECT_RECEIVE; 1019 g_attach(rcp, pp); 1020 if (g_access(rcp, 1, 1, 1) != 0) 1021 ; //goto fail1; 1022 1023 g_topology_unlock(); 1024 sx_xlock(&sc->sc_lock); 1025 1026 pd = malloc(sizeof(*pd), M_MD_SII, M_WAITOK | M_ZERO); 1027 pd->pd_meta = meta; 1028 if (spare == 2) { 1029 pd->pd_disk_pos = -3; 1030 } else { 1031 pd->pd_disk_pos = -1; 1032 } 1033 pd->pd_disk_size = pp->mediasize; 1034 disk = g_raid_create_disk(sc); 1035 disk->d_md_data = (void *)pd; 1036 disk->d_consumer = rcp; 1037 rcp->private = disk; 1038 1039 g_raid_get_disk_info(disk); 1040 1041 g_raid_md_sii_new_disk(disk); 1042 1043 sx_xunlock(&sc->sc_lock); 1044 g_topology_lock(); 1045 *gp = geom; 1046 return (result); 1047 fail1: 1048 free(meta, M_MD_SII); 1049 return (G_RAID_MD_TASTE_FAIL); 1050 } 1051 1052 static int 1053 g_raid_md_event_sii(struct g_raid_md_object *md, 1054 struct g_raid_disk *disk, u_int event) 1055 { 1056 struct g_raid_softc *sc; 1057 struct g_raid_subdisk *sd; 1058 struct g_raid_md_sii_object *mdi; 1059 struct g_raid_md_sii_perdisk *pd; 1060 1061 sc = md->mdo_softc; 1062 mdi = (struct g_raid_md_sii_object *)md; 1063 if (disk == NULL) { 1064 switch (event) { 1065 case G_RAID_NODE_E_START: 1066 if (!mdi->mdio_started) 1067 g_raid_md_sii_start(sc); 1068 return (0); 1069 } 1070 return (-1); 1071 } 1072 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data; 1073 switch (event) { 1074 case G_RAID_DISK_E_DISCONNECTED: 1075 /* If disk was assigned, just update statuses. */ 1076 if (pd->pd_disk_pos >= 0) { 1077 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1078 if (disk->d_consumer) { 1079 g_raid_kill_consumer(sc, disk->d_consumer); 1080 disk->d_consumer = NULL; 1081 } 1082 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 1083 g_raid_change_subdisk_state(sd, 1084 G_RAID_SUBDISK_S_NONE); 1085 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED, 1086 G_RAID_EVENT_SUBDISK); 1087 } 1088 } else { 1089 /* Otherwise -- delete. */ 1090 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 1091 g_raid_destroy_disk(disk); 1092 } 1093 1094 /* Write updated metadata to all disks. */ 1095 g_raid_md_write_sii(md, NULL, NULL, NULL); 1096 1097 /* Check if anything left except placeholders. */ 1098 if (g_raid_ndisks(sc, -1) == 1099 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1100 g_raid_destroy_node(sc, 0); 1101 else 1102 g_raid_md_sii_refill(sc); 1103 return (0); 1104 } 1105 return (-2); 1106 } 1107 1108 static int 1109 g_raid_md_ctl_sii(struct g_raid_md_object *md, 1110 struct gctl_req *req) 1111 { 1112 struct g_raid_softc *sc; 1113 struct g_raid_volume *vol; 1114 struct g_raid_subdisk *sd; 1115 struct g_raid_disk *disk; 1116 struct g_raid_md_sii_object *mdi; 1117 struct g_raid_md_sii_perdisk *pd; 1118 struct g_consumer *cp; 1119 struct g_provider *pp; 1120 char arg[16]; 1121 const char *verb, *volname, *levelname, *diskname; 1122 int *nargs, *force; 1123 off_t size, sectorsize, strip; 1124 intmax_t *sizearg, *striparg; 1125 int numdisks, i, len, level, qual, update; 1126 int error; 1127 1128 sc = md->mdo_softc; 1129 mdi = (struct g_raid_md_sii_object *)md; 1130 verb = gctl_get_param(req, "verb", NULL); 1131 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 1132 error = 0; 1133 if (strcmp(verb, "label") == 0) { 1134 1135 if (*nargs < 4) { 1136 gctl_error(req, "Invalid number of arguments."); 1137 return (-1); 1138 } 1139 volname = gctl_get_asciiparam(req, "arg1"); 1140 if (volname == NULL) { 1141 gctl_error(req, "No volume name."); 1142 return (-2); 1143 } 1144 levelname = gctl_get_asciiparam(req, "arg2"); 1145 if (levelname == NULL) { 1146 gctl_error(req, "No RAID level."); 1147 return (-3); 1148 } 1149 if (strcasecmp(levelname, "RAID5") == 0) 1150 levelname = "RAID5-LS"; 1151 if (g_raid_volume_str2level(levelname, &level, &qual)) { 1152 gctl_error(req, "Unknown RAID level '%s'.", levelname); 1153 return (-4); 1154 } 1155 numdisks = *nargs - 3; 1156 force = gctl_get_paraml(req, "force", sizeof(*force)); 1157 if (!g_raid_md_sii_supported(level, qual, numdisks, 1158 force ? *force : 0)) { 1159 gctl_error(req, "Unsupported RAID level " 1160 "(0x%02x/0x%02x), or number of disks (%d).", 1161 level, qual, numdisks); 1162 return (-5); 1163 } 1164 1165 /* Search for disks, connect them and probe. */ 1166 size = 0x7fffffffffffffffllu; 1167 sectorsize = 0; 1168 for (i = 0; i < numdisks; i++) { 1169 snprintf(arg, sizeof(arg), "arg%d", i + 3); 1170 diskname = gctl_get_asciiparam(req, arg); 1171 if (diskname == NULL) { 1172 gctl_error(req, "No disk name (%s).", arg); 1173 error = -6; 1174 break; 1175 } 1176 if (strcmp(diskname, "NONE") == 0) { 1177 cp = NULL; 1178 pp = NULL; 1179 } else { 1180 g_topology_lock(); 1181 cp = g_raid_open_consumer(sc, diskname); 1182 if (cp == NULL) { 1183 gctl_error(req, "Can't open '%s'.", 1184 diskname); 1185 g_topology_unlock(); 1186 error = -7; 1187 break; 1188 } 1189 pp = cp->provider; 1190 } 1191 pd = malloc(sizeof(*pd), M_MD_SII, M_WAITOK | M_ZERO); 1192 pd->pd_disk_pos = i; 1193 disk = g_raid_create_disk(sc); 1194 disk->d_md_data = (void *)pd; 1195 disk->d_consumer = cp; 1196 if (cp == NULL) 1197 continue; 1198 cp->private = disk; 1199 g_topology_unlock(); 1200 1201 g_raid_get_disk_info(disk); 1202 1203 pd->pd_disk_size = pp->mediasize; 1204 if (size > pp->mediasize) 1205 size = pp->mediasize; 1206 if (sectorsize < pp->sectorsize) 1207 sectorsize = pp->sectorsize; 1208 } 1209 if (error != 0) 1210 return (error); 1211 1212 if (sectorsize <= 0) { 1213 gctl_error(req, "Can't get sector size."); 1214 return (-8); 1215 } 1216 1217 /* Reserve space for metadata. */ 1218 size -= 0x800 * sectorsize; 1219 1220 /* Handle size argument. */ 1221 len = sizeof(*sizearg); 1222 sizearg = gctl_get_param(req, "size", &len); 1223 if (sizearg != NULL && len == sizeof(*sizearg) && 1224 *sizearg > 0) { 1225 if (*sizearg > size) { 1226 gctl_error(req, "Size too big %lld > %lld.", 1227 (long long)*sizearg, (long long)size); 1228 return (-9); 1229 } 1230 size = *sizearg; 1231 } 1232 1233 /* Handle strip argument. */ 1234 strip = 131072; 1235 len = sizeof(*striparg); 1236 striparg = gctl_get_param(req, "strip", &len); 1237 if (striparg != NULL && len == sizeof(*striparg) && 1238 *striparg > 0) { 1239 if (*striparg < sectorsize) { 1240 gctl_error(req, "Strip size too small."); 1241 return (-10); 1242 } 1243 if (*striparg % sectorsize != 0) { 1244 gctl_error(req, "Incorrect strip size."); 1245 return (-11); 1246 } 1247 if (strip > 65535 * sectorsize) { 1248 gctl_error(req, "Strip size too big."); 1249 return (-12); 1250 } 1251 strip = *striparg; 1252 } 1253 1254 /* Round size down to strip or sector. */ 1255 if (level == G_RAID_VOLUME_RL_RAID1) 1256 size -= (size % sectorsize); 1257 else if (level == G_RAID_VOLUME_RL_RAID1E && 1258 (numdisks & 1) != 0) 1259 size -= (size % (2 * strip)); 1260 else 1261 size -= (size % strip); 1262 if (size <= 0) { 1263 gctl_error(req, "Size too small."); 1264 return (-13); 1265 } 1266 if (size > 0xffffffffffffllu * sectorsize) { 1267 gctl_error(req, "Size too big."); 1268 return (-14); 1269 } 1270 1271 /* We have all we need, create things: volume, ... */ 1272 mdi->mdio_total_disks = numdisks; 1273 mdi->mdio_started = 1; 1274 vol = g_raid_create_volume(sc, volname, -1); 1275 vol->v_md_data = (void *)(intptr_t)0; 1276 vol->v_raid_level = level; 1277 vol->v_raid_level_qualifier = qual; 1278 vol->v_strip_size = strip; 1279 vol->v_disks_count = numdisks; 1280 if (level == G_RAID_VOLUME_RL_RAID0 || 1281 level == G_RAID_VOLUME_RL_CONCAT || 1282 level == G_RAID_VOLUME_RL_SINGLE) 1283 vol->v_mediasize = size * numdisks; 1284 else if (level == G_RAID_VOLUME_RL_RAID1) 1285 vol->v_mediasize = size; 1286 else if (level == G_RAID_VOLUME_RL_RAID5) 1287 vol->v_mediasize = size * (numdisks - 1); 1288 else { /* RAID1E */ 1289 vol->v_mediasize = ((size * numdisks) / strip / 2) * 1290 strip; 1291 } 1292 vol->v_sectorsize = sectorsize; 1293 g_raid_start_volume(vol); 1294 1295 /* , and subdisks. */ 1296 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1297 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data; 1298 sd = &vol->v_subdisks[pd->pd_disk_pos]; 1299 sd->sd_disk = disk; 1300 sd->sd_offset = 0; 1301 sd->sd_size = size; 1302 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 1303 if (sd->sd_disk->d_consumer != NULL) { 1304 g_raid_change_disk_state(disk, 1305 G_RAID_DISK_S_ACTIVE); 1306 g_raid_change_subdisk_state(sd, 1307 G_RAID_SUBDISK_S_ACTIVE); 1308 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 1309 G_RAID_EVENT_SUBDISK); 1310 } else { 1311 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1312 } 1313 } 1314 1315 /* Write metadata based on created entities. */ 1316 G_RAID_DEBUG1(0, sc, "Array started."); 1317 g_raid_md_write_sii(md, NULL, NULL, NULL); 1318 1319 /* Pickup any STALE/SPARE disks to refill array if needed. */ 1320 g_raid_md_sii_refill(sc); 1321 1322 g_raid_event_send(vol, G_RAID_VOLUME_E_START, 1323 G_RAID_EVENT_VOLUME); 1324 return (0); 1325 } 1326 if (strcmp(verb, "delete") == 0) { 1327 1328 /* Check if some volume is still open. */ 1329 force = gctl_get_paraml(req, "force", sizeof(*force)); 1330 if (force != NULL && *force == 0 && 1331 g_raid_nopens(sc) != 0) { 1332 gctl_error(req, "Some volume is still open."); 1333 return (-4); 1334 } 1335 1336 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1337 if (disk->d_consumer) 1338 sii_meta_erase(disk->d_consumer); 1339 } 1340 g_raid_destroy_node(sc, 0); 1341 return (0); 1342 } 1343 if (strcmp(verb, "remove") == 0 || 1344 strcmp(verb, "fail") == 0) { 1345 if (*nargs < 2) { 1346 gctl_error(req, "Invalid number of arguments."); 1347 return (-1); 1348 } 1349 for (i = 1; i < *nargs; i++) { 1350 snprintf(arg, sizeof(arg), "arg%d", i); 1351 diskname = gctl_get_asciiparam(req, arg); 1352 if (diskname == NULL) { 1353 gctl_error(req, "No disk name (%s).", arg); 1354 error = -2; 1355 break; 1356 } 1357 if (strncmp(diskname, "/dev/", 5) == 0) 1358 diskname += 5; 1359 1360 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1361 if (disk->d_consumer != NULL && 1362 disk->d_consumer->provider != NULL && 1363 strcmp(disk->d_consumer->provider->name, 1364 diskname) == 0) 1365 break; 1366 } 1367 if (disk == NULL) { 1368 gctl_error(req, "Disk '%s' not found.", 1369 diskname); 1370 error = -3; 1371 break; 1372 } 1373 1374 if (strcmp(verb, "fail") == 0) { 1375 g_raid_md_fail_disk_sii(md, NULL, disk); 1376 continue; 1377 } 1378 1379 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data; 1380 1381 /* Erase metadata on deleting disk. */ 1382 sii_meta_erase(disk->d_consumer); 1383 1384 /* If disk was assigned, just update statuses. */ 1385 if (pd->pd_disk_pos >= 0) { 1386 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1387 g_raid_kill_consumer(sc, disk->d_consumer); 1388 disk->d_consumer = NULL; 1389 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 1390 g_raid_change_subdisk_state(sd, 1391 G_RAID_SUBDISK_S_NONE); 1392 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED, 1393 G_RAID_EVENT_SUBDISK); 1394 } 1395 } else { 1396 /* Otherwise -- delete. */ 1397 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 1398 g_raid_destroy_disk(disk); 1399 } 1400 } 1401 1402 /* Write updated metadata to remaining disks. */ 1403 g_raid_md_write_sii(md, NULL, NULL, NULL); 1404 1405 /* Check if anything left except placeholders. */ 1406 if (g_raid_ndisks(sc, -1) == 1407 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1408 g_raid_destroy_node(sc, 0); 1409 else 1410 g_raid_md_sii_refill(sc); 1411 return (error); 1412 } 1413 if (strcmp(verb, "insert") == 0) { 1414 if (*nargs < 2) { 1415 gctl_error(req, "Invalid number of arguments."); 1416 return (-1); 1417 } 1418 update = 0; 1419 for (i = 1; i < *nargs; i++) { 1420 /* Get disk name. */ 1421 snprintf(arg, sizeof(arg), "arg%d", i); 1422 diskname = gctl_get_asciiparam(req, arg); 1423 if (diskname == NULL) { 1424 gctl_error(req, "No disk name (%s).", arg); 1425 error = -3; 1426 break; 1427 } 1428 1429 /* Try to find provider with specified name. */ 1430 g_topology_lock(); 1431 cp = g_raid_open_consumer(sc, diskname); 1432 if (cp == NULL) { 1433 gctl_error(req, "Can't open disk '%s'.", 1434 diskname); 1435 g_topology_unlock(); 1436 error = -4; 1437 break; 1438 } 1439 pp = cp->provider; 1440 1441 pd = malloc(sizeof(*pd), M_MD_SII, M_WAITOK | M_ZERO); 1442 pd->pd_disk_pos = -3; 1443 pd->pd_disk_size = pp->mediasize; 1444 1445 disk = g_raid_create_disk(sc); 1446 disk->d_consumer = cp; 1447 disk->d_md_data = (void *)pd; 1448 cp->private = disk; 1449 g_topology_unlock(); 1450 1451 g_raid_get_disk_info(disk); 1452 1453 /* Welcome the "new" disk. */ 1454 update += g_raid_md_sii_start_disk(disk); 1455 if (disk->d_state == G_RAID_DISK_S_SPARE) { 1456 sii_meta_write_spare(cp); 1457 g_raid_destroy_disk(disk); 1458 } else if (disk->d_state != G_RAID_DISK_S_ACTIVE) { 1459 gctl_error(req, "Disk '%s' doesn't fit.", 1460 diskname); 1461 g_raid_destroy_disk(disk); 1462 error = -8; 1463 break; 1464 } 1465 } 1466 1467 /* Write new metadata if we changed something. */ 1468 if (update) 1469 g_raid_md_write_sii(md, NULL, NULL, NULL); 1470 return (error); 1471 } 1472 gctl_error(req, "Command '%s' is not supported.", verb); 1473 return (-100); 1474 } 1475 1476 static int 1477 g_raid_md_write_sii(struct g_raid_md_object *md, struct g_raid_volume *tvol, 1478 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1479 { 1480 struct g_raid_softc *sc; 1481 struct g_raid_volume *vol; 1482 struct g_raid_subdisk *sd; 1483 struct g_raid_disk *disk; 1484 struct g_raid_md_sii_object *mdi; 1485 struct g_raid_md_sii_perdisk *pd; 1486 struct sii_raid_conf *meta; 1487 u_int i; 1488 1489 sc = md->mdo_softc; 1490 mdi = (struct g_raid_md_sii_object *)md; 1491 1492 if (sc->sc_stopping == G_RAID_DESTROY_HARD) 1493 return (0); 1494 1495 /* Bump generation. Newly written metadata may differ from previous. */ 1496 mdi->mdio_generation++; 1497 1498 /* There is only one volume. */ 1499 vol = TAILQ_FIRST(&sc->sc_volumes); 1500 1501 /* Fill global fields. */ 1502 meta = malloc(sizeof(*meta), M_MD_SII, M_WAITOK | M_ZERO); 1503 if (mdi->mdio_meta) 1504 memcpy(meta, mdi->mdio_meta, sizeof(*meta)); 1505 meta->total_sectors = vol->v_mediasize / vol->v_sectorsize; 1506 meta->vendor_id = 0x1095; 1507 meta->version_minor = 0; 1508 meta->version_major = 2; 1509 memcpy(&meta->timestamp, &mdi->mdio_timestamp, 6); 1510 meta->strip_sectors = vol->v_strip_size / vol->v_sectorsize; 1511 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID0) { 1512 meta->type = SII_T_RAID0; 1513 meta->raid0_disks = vol->v_disks_count; 1514 meta->raid1_disks = 0xff; 1515 } else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) { 1516 meta->type = SII_T_RAID1; 1517 meta->raid0_disks = 0xff; 1518 meta->raid1_disks = vol->v_disks_count; 1519 } else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) { 1520 meta->type = SII_T_RAID01; 1521 meta->raid0_disks = vol->v_disks_count / 2; 1522 meta->raid1_disks = 2; 1523 } else if (vol->v_raid_level == G_RAID_VOLUME_RL_CONCAT || 1524 vol->v_raid_level == G_RAID_VOLUME_RL_SINGLE) { 1525 meta->type = SII_T_JBOD; 1526 meta->raid0_disks = vol->v_disks_count; 1527 meta->raid1_disks = 0xff; 1528 } else { 1529 meta->type = SII_T_RAID5; 1530 meta->raid0_disks = vol->v_disks_count; 1531 meta->raid1_disks = 0xff; 1532 } 1533 meta->generation = mdi->mdio_generation; 1534 meta->raid_status = vol->v_dirty ? SII_S_ONLINE : SII_S_AVAILABLE; 1535 for (i = 0; i < vol->v_disks_count; i++) { 1536 sd = &vol->v_subdisks[i]; 1537 if (sd->sd_state == G_RAID_SUBDISK_S_STALE || 1538 sd->sd_state == G_RAID_SUBDISK_S_RESYNC) 1539 meta->raid_status = SII_S_ONLINE; 1540 } 1541 meta->raid_location = mdi->mdio_location; 1542 sii_meta_put_name(meta, vol->v_name); 1543 1544 /* We are done. Print meta data and store them to disks. */ 1545 if (mdi->mdio_meta != NULL) 1546 free(mdi->mdio_meta, M_MD_SII); 1547 mdi->mdio_meta = meta; 1548 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1549 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data; 1550 if (disk->d_state != G_RAID_DISK_S_ACTIVE) 1551 continue; 1552 if (pd->pd_meta != NULL) { 1553 free(pd->pd_meta, M_MD_SII); 1554 pd->pd_meta = NULL; 1555 } 1556 pd->pd_meta = sii_meta_copy(meta); 1557 if ((sd = TAILQ_FIRST(&disk->d_subdisks)) != NULL) { 1558 if (sd->sd_state < G_RAID_SUBDISK_S_NEW) 1559 pd->pd_meta->disk_status = SII_S_DROPPED; 1560 else if (sd->sd_state < G_RAID_SUBDISK_S_STALE) { 1561 pd->pd_meta->disk_status = SII_S_REBUILD; 1562 pd->pd_meta->rebuild_lba = 1563 sd->sd_rebuild_pos / vol->v_sectorsize; 1564 } else 1565 pd->pd_meta->disk_status = SII_S_CURRENT; 1566 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) { 1567 pd->pd_meta->disk_number = sd->sd_pos; 1568 pd->pd_meta->raid0_ident = 0xff; 1569 pd->pd_meta->raid1_ident = 0; 1570 } else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) { 1571 pd->pd_meta->disk_number = sd->sd_pos / meta->raid1_disks; 1572 pd->pd_meta->raid0_ident = sd->sd_pos % meta->raid1_disks; 1573 pd->pd_meta->raid1_ident = sd->sd_pos / meta->raid1_disks; 1574 } else { 1575 pd->pd_meta->disk_number = sd->sd_pos; 1576 pd->pd_meta->raid0_ident = 0; 1577 pd->pd_meta->raid1_ident = 0xff; 1578 } 1579 } 1580 G_RAID_DEBUG(1, "Writing SiI metadata to %s", 1581 g_raid_get_diskname(disk)); 1582 g_raid_md_sii_print(pd->pd_meta); 1583 sii_meta_write(disk->d_consumer, pd->pd_meta); 1584 } 1585 return (0); 1586 } 1587 1588 static int 1589 g_raid_md_fail_disk_sii(struct g_raid_md_object *md, 1590 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1591 { 1592 struct g_raid_softc *sc; 1593 struct g_raid_md_sii_perdisk *pd; 1594 struct g_raid_subdisk *sd; 1595 1596 sc = md->mdo_softc; 1597 pd = (struct g_raid_md_sii_perdisk *)tdisk->d_md_data; 1598 1599 /* We can't fail disk that is not a part of array now. */ 1600 if (pd->pd_disk_pos < 0) 1601 return (-1); 1602 1603 /* 1604 * Mark disk as failed in metadata and try to write that metadata 1605 * to the disk itself to prevent it's later resurrection as STALE. 1606 */ 1607 if (tdisk->d_consumer) { 1608 if (pd->pd_meta) { 1609 pd->pd_meta->disk_status = SII_S_REMOVED; 1610 sii_meta_write(tdisk->d_consumer, pd->pd_meta); 1611 } else 1612 sii_meta_erase(tdisk->d_consumer); 1613 } 1614 1615 /* Change states. */ 1616 g_raid_change_disk_state(tdisk, G_RAID_DISK_S_FAILED); 1617 TAILQ_FOREACH(sd, &tdisk->d_subdisks, sd_next) { 1618 g_raid_change_subdisk_state(sd, 1619 G_RAID_SUBDISK_S_FAILED); 1620 g_raid_event_send(sd, G_RAID_SUBDISK_E_FAILED, 1621 G_RAID_EVENT_SUBDISK); 1622 } 1623 1624 /* Write updated metadata to remaining disks. */ 1625 g_raid_md_write_sii(md, NULL, NULL, tdisk); 1626 1627 /* Check if anything left except placeholders. */ 1628 if (g_raid_ndisks(sc, -1) == 1629 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1630 g_raid_destroy_node(sc, 0); 1631 else 1632 g_raid_md_sii_refill(sc); 1633 return (0); 1634 } 1635 1636 static int 1637 g_raid_md_free_disk_sii(struct g_raid_md_object *md, 1638 struct g_raid_disk *disk) 1639 { 1640 struct g_raid_md_sii_perdisk *pd; 1641 1642 pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data; 1643 if (pd->pd_meta != NULL) { 1644 free(pd->pd_meta, M_MD_SII); 1645 pd->pd_meta = NULL; 1646 } 1647 free(pd, M_MD_SII); 1648 disk->d_md_data = NULL; 1649 return (0); 1650 } 1651 1652 static int 1653 g_raid_md_free_sii(struct g_raid_md_object *md) 1654 { 1655 struct g_raid_md_sii_object *mdi; 1656 1657 mdi = (struct g_raid_md_sii_object *)md; 1658 if (!mdi->mdio_started) { 1659 mdi->mdio_started = 0; 1660 callout_stop(&mdi->mdio_start_co); 1661 G_RAID_DEBUG1(1, md->mdo_softc, 1662 "root_mount_rel %p", mdi->mdio_rootmount); 1663 root_mount_rel(mdi->mdio_rootmount); 1664 mdi->mdio_rootmount = NULL; 1665 } 1666 if (mdi->mdio_meta != NULL) { 1667 free(mdi->mdio_meta, M_MD_SII); 1668 mdi->mdio_meta = NULL; 1669 } 1670 return (0); 1671 } 1672 1673 G_RAID_MD_DECLARE(sii, "SiI"); 1674