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