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 <geom/geom.h> 44 #include <geom/geom_dbg.h> 45 #include "geom/raid/g_raid.h" 46 #include "g_raid_md_if.h" 47 48 static MALLOC_DEFINE(M_MD_PROMISE, "md_promise_data", "GEOM_RAID Promise metadata"); 49 50 #define PROMISE_MAX_DISKS 8 51 #define PROMISE_MAX_SUBDISKS 2 52 #define PROMISE_META_OFFSET 14 53 54 struct promise_raid_disk { 55 uint8_t flags; /* Subdisk status. */ 56 #define PROMISE_F_VALID 0x01 57 #define PROMISE_F_ONLINE 0x02 58 #define PROMISE_F_ASSIGNED 0x04 59 #define PROMISE_F_SPARE 0x08 60 #define PROMISE_F_DUPLICATE 0x10 61 #define PROMISE_F_REDIR 0x20 62 #define PROMISE_F_DOWN 0x40 63 #define PROMISE_F_READY 0x80 64 65 uint8_t number; /* Position in a volume. */ 66 uint8_t channel; /* ATA channel number. */ 67 uint8_t device; /* ATA device number. */ 68 uint64_t id __packed; /* Subdisk ID. */ 69 } __packed; 70 71 struct promise_raid_conf { 72 char promise_id[24]; 73 #define PROMISE_MAGIC "Promise Technology, Inc." 74 #define FREEBSD_MAGIC "FreeBSD ATA driver RAID " 75 76 uint32_t dummy_0; 77 uint64_t magic_0; 78 #define PROMISE_MAGIC0(x) (((uint64_t)(x.channel) << 48) | \ 79 ((uint64_t)(x.device != 0) << 56)) 80 uint16_t magic_1; 81 uint32_t magic_2; 82 uint8_t filler1[470]; 83 84 uint32_t integrity; 85 #define PROMISE_I_VALID 0x00000080 86 87 struct promise_raid_disk disk; /* This subdisk info. */ 88 uint32_t disk_offset; /* Subdisk offset. */ 89 uint32_t disk_sectors; /* Subdisk size */ 90 uint32_t disk_rebuild; /* Rebuild position. */ 91 uint16_t generation; /* Generation number. */ 92 uint8_t status; /* Volume status. */ 93 #define PROMISE_S_VALID 0x01 94 #define PROMISE_S_ONLINE 0x02 95 #define PROMISE_S_INITED 0x04 96 #define PROMISE_S_READY 0x08 97 #define PROMISE_S_DEGRADED 0x10 98 #define PROMISE_S_MARKED 0x20 99 #define PROMISE_S_MIGRATING 0x40 100 #define PROMISE_S_FUNCTIONAL 0x80 101 102 uint8_t type; /* Voluem type. */ 103 #define PROMISE_T_RAID0 0x00 104 #define PROMISE_T_RAID1 0x01 105 #define PROMISE_T_RAID3 0x02 106 #define PROMISE_T_RAID5 0x04 107 #define PROMISE_T_SPAN 0x08 108 #define PROMISE_T_JBOD 0x10 109 110 uint8_t total_disks; /* Disks in this volume. */ 111 uint8_t stripe_shift; /* Strip size. */ 112 uint8_t array_width; /* Number of RAID0 stripes. */ 113 uint8_t array_number; /* Global volume number. */ 114 uint32_t total_sectors; /* Volume size. */ 115 uint16_t cylinders; /* Volume geometry: C. */ 116 uint8_t heads; /* Volume geometry: H. */ 117 uint8_t sectors; /* Volume geometry: S. */ 118 uint64_t volume_id __packed; /* Volume ID, */ 119 struct promise_raid_disk disks[PROMISE_MAX_DISKS]; 120 /* Subdisks in this volume. */ 121 char name[32]; /* Volume label. */ 122 123 uint32_t filler2[8]; 124 uint32_t magic_3; /* Something related to rebuild. */ 125 uint64_t rebuild_lba64; /* Per-volume rebuild position. */ 126 uint32_t magic_4; 127 uint32_t magic_5; 128 uint32_t total_sectors_high; 129 uint8_t magic_6; 130 uint8_t sector_size; 131 uint16_t magic_7; 132 uint32_t magic_8[31]; 133 uint32_t backup_time; 134 uint16_t magic_9; 135 uint32_t disk_offset_high; 136 uint32_t disk_sectors_high; 137 uint32_t disk_rebuild_high; 138 uint16_t magic_10; 139 uint32_t magic_11[3]; 140 uint32_t filler3[284]; 141 uint32_t checksum; 142 } __packed; 143 144 struct g_raid_md_promise_perdisk { 145 int pd_updated; 146 int pd_subdisks; 147 struct promise_raid_conf *pd_meta[PROMISE_MAX_SUBDISKS]; 148 }; 149 150 struct g_raid_md_promise_pervolume { 151 struct promise_raid_conf *pv_meta; 152 uint64_t pv_id; 153 uint16_t pv_generation; 154 int pv_disks_present; 155 int pv_started; 156 struct callout pv_start_co; /* STARTING state timer. */ 157 }; 158 159 static g_raid_md_create_t g_raid_md_create_promise; 160 static g_raid_md_taste_t g_raid_md_taste_promise; 161 static g_raid_md_event_t g_raid_md_event_promise; 162 static g_raid_md_volume_event_t g_raid_md_volume_event_promise; 163 static g_raid_md_ctl_t g_raid_md_ctl_promise; 164 static g_raid_md_write_t g_raid_md_write_promise; 165 static g_raid_md_fail_disk_t g_raid_md_fail_disk_promise; 166 static g_raid_md_free_disk_t g_raid_md_free_disk_promise; 167 static g_raid_md_free_volume_t g_raid_md_free_volume_promise; 168 static g_raid_md_free_t g_raid_md_free_promise; 169 170 static kobj_method_t g_raid_md_promise_methods[] = { 171 KOBJMETHOD(g_raid_md_create, g_raid_md_create_promise), 172 KOBJMETHOD(g_raid_md_taste, g_raid_md_taste_promise), 173 KOBJMETHOD(g_raid_md_event, g_raid_md_event_promise), 174 KOBJMETHOD(g_raid_md_volume_event, g_raid_md_volume_event_promise), 175 KOBJMETHOD(g_raid_md_ctl, g_raid_md_ctl_promise), 176 KOBJMETHOD(g_raid_md_write, g_raid_md_write_promise), 177 KOBJMETHOD(g_raid_md_fail_disk, g_raid_md_fail_disk_promise), 178 KOBJMETHOD(g_raid_md_free_disk, g_raid_md_free_disk_promise), 179 KOBJMETHOD(g_raid_md_free_volume, g_raid_md_free_volume_promise), 180 KOBJMETHOD(g_raid_md_free, g_raid_md_free_promise), 181 { 0, 0 } 182 }; 183 184 static struct g_raid_md_class g_raid_md_promise_class = { 185 "Promise", 186 g_raid_md_promise_methods, 187 sizeof(struct g_raid_md_object), 188 .mdc_enable = 1, 189 .mdc_priority = 100 190 }; 191 192 193 static void 194 g_raid_md_promise_print(struct promise_raid_conf *meta) 195 { 196 int i; 197 198 if (g_raid_debug < 1) 199 return; 200 201 printf("********* ATA Promise Metadata *********\n"); 202 printf("promise_id <%.24s>\n", meta->promise_id); 203 printf("disk %02x %02x %02x %02x %016jx\n", 204 meta->disk.flags, meta->disk.number, meta->disk.channel, 205 meta->disk.device, meta->disk.id); 206 printf("disk_offset %u\n", meta->disk_offset); 207 printf("disk_sectors %u\n", meta->disk_sectors); 208 printf("disk_rebuild %u\n", meta->disk_rebuild); 209 printf("generation %u\n", meta->generation); 210 printf("status 0x%02x\n", meta->status); 211 printf("type %u\n", meta->type); 212 printf("total_disks %u\n", meta->total_disks); 213 printf("stripe_shift %u\n", meta->stripe_shift); 214 printf("array_width %u\n", meta->array_width); 215 printf("array_number %u\n", meta->array_number); 216 printf("total_sectors %u\n", meta->total_sectors); 217 printf("cylinders %u\n", meta->cylinders); 218 printf("heads %u\n", meta->heads); 219 printf("sectors %u\n", meta->sectors); 220 printf("volume_id 0x%016jx\n", meta->volume_id); 221 printf("disks:\n"); 222 for (i = 0; i < PROMISE_MAX_DISKS; i++ ) { 223 printf(" %02x %02x %02x %02x %016jx\n", 224 meta->disks[i].flags, meta->disks[i].number, 225 meta->disks[i].channel, meta->disks[i].device, 226 meta->disks[i].id); 227 } 228 printf("name <%.32s>\n", meta->name); 229 printf("magic_3 0x%08x\n", meta->magic_3); 230 printf("rebuild_lba64 %ju\n", meta->rebuild_lba64); 231 printf("magic_4 0x%08x\n", meta->magic_4); 232 printf("magic_5 0x%08x\n", meta->magic_5); 233 printf("total_sectors_high 0x%08x\n", meta->total_sectors_high); 234 printf("sector_size %u\n", meta->sector_size); 235 printf("backup_time %d\n", meta->backup_time); 236 printf("disk_offset_high 0x%08x\n", meta->disk_offset_high); 237 printf("disk_sectors_high 0x%08x\n", meta->disk_sectors_high); 238 printf("disk_rebuild_high 0x%08x\n", meta->disk_rebuild_high); 239 printf("=================================================\n"); 240 } 241 242 static struct promise_raid_conf * 243 promise_meta_copy(struct promise_raid_conf *meta) 244 { 245 struct promise_raid_conf *nmeta; 246 247 nmeta = malloc(sizeof(*nmeta), M_MD_PROMISE, M_WAITOK); 248 memcpy(nmeta, meta, sizeof(*nmeta)); 249 return (nmeta); 250 } 251 252 static int 253 promise_meta_find_disk(struct promise_raid_conf *meta, uint64_t id) 254 { 255 int pos; 256 257 for (pos = 0; pos < meta->total_disks; pos++) { 258 if (meta->disks[pos].id == id) 259 return (pos); 260 } 261 return (-1); 262 } 263 264 static int 265 promise_meta_unused_range(struct promise_raid_conf **metaarr, int nsd, 266 off_t sectors, off_t *off, off_t *size) 267 { 268 off_t coff, csize, tmp; 269 int i, j; 270 271 sectors -= 131072; 272 *off = 0; 273 *size = 0; 274 coff = 0; 275 csize = sectors; 276 i = 0; 277 while (1) { 278 for (j = 0; j < nsd; j++) { 279 tmp = ((off_t)metaarr[j]->disk_offset_high << 32) + 280 metaarr[j]->disk_offset; 281 if (tmp >= coff) 282 csize = MIN(csize, tmp - coff); 283 } 284 if (csize > *size) { 285 *off = coff; 286 *size = csize; 287 } 288 if (i >= nsd) 289 break; 290 coff = ((off_t)metaarr[i]->disk_offset_high << 32) + 291 metaarr[i]->disk_offset + 292 ((off_t)metaarr[i]->disk_sectors_high << 32) + 293 metaarr[i]->disk_sectors; 294 csize = sectors - coff; 295 i++; 296 } 297 return ((*size > 0) ? 1 : 0); 298 } 299 300 static int 301 promise_meta_translate_disk(struct g_raid_volume *vol, int md_disk_pos) 302 { 303 int disk_pos, width; 304 305 if (md_disk_pos >= 0 && vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) { 306 width = vol->v_disks_count / 2; 307 disk_pos = (md_disk_pos / width) + 308 (md_disk_pos % width) * width; 309 } else 310 disk_pos = md_disk_pos; 311 return (disk_pos); 312 } 313 314 static void 315 promise_meta_get_name(struct promise_raid_conf *meta, char *buf) 316 { 317 int i; 318 319 strncpy(buf, meta->name, 32); 320 buf[32] = 0; 321 for (i = 31; i >= 0; i--) { 322 if (buf[i] > 0x20) 323 break; 324 buf[i] = 0; 325 } 326 } 327 328 static void 329 promise_meta_put_name(struct promise_raid_conf *meta, char *buf) 330 { 331 332 memset(meta->name, 0x20, 32); 333 memcpy(meta->name, buf, MIN(strlen(buf), 32)); 334 } 335 336 static int 337 promise_meta_read(struct g_consumer *cp, struct promise_raid_conf **metaarr) 338 { 339 struct g_provider *pp; 340 struct promise_raid_conf *meta; 341 char *buf; 342 int error, i, subdisks; 343 uint32_t checksum, *ptr; 344 345 pp = cp->provider; 346 subdisks = 0; 347 348 if (pp->sectorsize * 4 > MAXPHYS) { 349 G_RAID_DEBUG(1, "%s: Blocksize is too big.", pp->name); 350 return (subdisks); 351 } 352 next: 353 /* Read metadata block. */ 354 buf = g_read_data(cp, pp->mediasize - pp->sectorsize * 355 (63 - subdisks * PROMISE_META_OFFSET), 356 pp->sectorsize * 4, &error); 357 if (buf == NULL) { 358 G_RAID_DEBUG(1, "Cannot read metadata from %s (error=%d).", 359 pp->name, error); 360 return (subdisks); 361 } 362 meta = (struct promise_raid_conf *)buf; 363 364 /* Check if this is an Promise RAID struct */ 365 if (strncmp(meta->promise_id, PROMISE_MAGIC, strlen(PROMISE_MAGIC)) && 366 strncmp(meta->promise_id, FREEBSD_MAGIC, strlen(FREEBSD_MAGIC))) { 367 if (subdisks == 0) 368 G_RAID_DEBUG(1, 369 "Promise signature check failed on %s", pp->name); 370 g_free(buf); 371 return (subdisks); 372 } 373 meta = malloc(sizeof(*meta), M_MD_PROMISE, M_WAITOK); 374 memcpy(meta, buf, MIN(sizeof(*meta), pp->sectorsize * 4)); 375 g_free(buf); 376 377 /* Check metadata checksum. */ 378 for (checksum = 0, ptr = (uint32_t *)meta, i = 0; i < 511; i++) 379 checksum += *ptr++; 380 if (checksum != meta->checksum) { 381 G_RAID_DEBUG(1, "Promise checksum check failed on %s", pp->name); 382 free(meta, M_MD_PROMISE); 383 return (subdisks); 384 } 385 386 if ((meta->integrity & PROMISE_I_VALID) == 0) { 387 G_RAID_DEBUG(1, "Promise metadata is invalid on %s", pp->name); 388 free(meta, M_MD_PROMISE); 389 return (subdisks); 390 } 391 392 if (meta->total_disks > PROMISE_MAX_DISKS) { 393 G_RAID_DEBUG(1, "Wrong number of disks on %s (%d)", 394 pp->name, meta->total_disks); 395 free(meta, M_MD_PROMISE); 396 return (subdisks); 397 } 398 399 /* Remove filler garbage from fields used in newer metadata. */ 400 if (meta->disk_offset_high == 0x8b8c8d8e && 401 meta->disk_sectors_high == 0x8788898a && 402 meta->disk_rebuild_high == 0x83848586) { 403 meta->disk_offset_high = 0; 404 meta->disk_sectors_high = 0; 405 if (meta->disk_rebuild == UINT32_MAX) 406 meta->disk_rebuild_high = UINT32_MAX; 407 else 408 meta->disk_rebuild_high = 0; 409 if (meta->total_sectors_high == 0x15161718) { 410 meta->total_sectors_high = 0; 411 meta->backup_time = 0; 412 if (meta->rebuild_lba64 == 0x2122232425262728) 413 meta->rebuild_lba64 = UINT64_MAX; 414 } 415 } 416 if (meta->sector_size < 1 || meta->sector_size > 8) 417 meta->sector_size = 1; 418 419 /* Save this part and look for next. */ 420 *metaarr = meta; 421 metaarr++; 422 subdisks++; 423 if (subdisks < PROMISE_MAX_SUBDISKS) 424 goto next; 425 426 return (subdisks); 427 } 428 429 static int 430 promise_meta_write(struct g_consumer *cp, 431 struct promise_raid_conf **metaarr, int nsd) 432 { 433 struct g_provider *pp; 434 struct promise_raid_conf *meta; 435 char *buf; 436 off_t off, size; 437 int error, i, subdisk, fake; 438 uint32_t checksum, *ptr; 439 440 pp = cp->provider; 441 subdisk = 0; 442 fake = 0; 443 next: 444 buf = malloc(pp->sectorsize * 4, M_MD_PROMISE, M_WAITOK | M_ZERO); 445 meta = NULL; 446 if (subdisk < nsd) { 447 meta = metaarr[subdisk]; 448 } else if (!fake && promise_meta_unused_range(metaarr, nsd, 449 cp->provider->mediasize / cp->provider->sectorsize, 450 &off, &size)) { 451 /* Optionally add record for unused space. */ 452 meta = (struct promise_raid_conf *)buf; 453 memcpy(&meta->promise_id[0], PROMISE_MAGIC, 454 sizeof(PROMISE_MAGIC) - 1); 455 meta->dummy_0 = 0x00020000; 456 meta->integrity = PROMISE_I_VALID; 457 meta->disk.flags = PROMISE_F_ONLINE | PROMISE_F_VALID; 458 meta->disk.number = 0xff; 459 arc4rand(&meta->disk.id, sizeof(meta->disk.id), 0); 460 meta->disk_offset_high = off >> 32; 461 meta->disk_offset = (uint32_t)off; 462 meta->disk_sectors_high = size >> 32; 463 meta->disk_sectors = (uint32_t)size; 464 meta->disk_rebuild_high = UINT32_MAX; 465 meta->disk_rebuild = UINT32_MAX; 466 fake = 1; 467 } 468 if (meta != NULL) { 469 /* Recalculate checksum for case if metadata were changed. */ 470 meta->checksum = 0; 471 for (checksum = 0, ptr = (uint32_t *)meta, i = 0; i < 511; i++) 472 checksum += *ptr++; 473 meta->checksum = checksum; 474 memcpy(buf, meta, MIN(pp->sectorsize * 4, sizeof(*meta))); 475 } 476 error = g_write_data(cp, pp->mediasize - pp->sectorsize * 477 (63 - subdisk * PROMISE_META_OFFSET), 478 buf, pp->sectorsize * 4); 479 if (error != 0) { 480 G_RAID_DEBUG(1, "Cannot write metadata to %s (error=%d).", 481 pp->name, error); 482 } 483 free(buf, M_MD_PROMISE); 484 485 subdisk++; 486 if (subdisk < PROMISE_MAX_SUBDISKS) 487 goto next; 488 489 return (error); 490 } 491 492 static int 493 promise_meta_erase(struct g_consumer *cp) 494 { 495 struct g_provider *pp; 496 char *buf; 497 int error, subdisk; 498 499 pp = cp->provider; 500 buf = malloc(4 * pp->sectorsize, M_MD_PROMISE, M_WAITOK | M_ZERO); 501 for (subdisk = 0; subdisk < PROMISE_MAX_SUBDISKS; subdisk++) { 502 error = g_write_data(cp, pp->mediasize - pp->sectorsize * 503 (63 - subdisk * PROMISE_META_OFFSET), 504 buf, 4 * pp->sectorsize); 505 if (error != 0) { 506 G_RAID_DEBUG(1, "Cannot erase metadata on %s (error=%d).", 507 pp->name, error); 508 } 509 } 510 free(buf, M_MD_PROMISE); 511 return (error); 512 } 513 514 static int 515 promise_meta_write_spare(struct g_consumer *cp) 516 { 517 struct promise_raid_conf *meta; 518 off_t tmp; 519 int error; 520 521 meta = malloc(sizeof(*meta), M_MD_PROMISE, M_WAITOK | M_ZERO); 522 memcpy(&meta->promise_id[0], PROMISE_MAGIC, sizeof(PROMISE_MAGIC) - 1); 523 meta->dummy_0 = 0x00020000; 524 meta->integrity = PROMISE_I_VALID; 525 meta->disk.flags = PROMISE_F_SPARE | PROMISE_F_ONLINE | PROMISE_F_VALID; 526 meta->disk.number = 0xff; 527 arc4rand(&meta->disk.id, sizeof(meta->disk.id), 0); 528 tmp = cp->provider->mediasize / cp->provider->sectorsize - 131072; 529 meta->disk_sectors_high = tmp >> 32; 530 meta->disk_sectors = (uint32_t)tmp; 531 meta->disk_rebuild_high = UINT32_MAX; 532 meta->disk_rebuild = UINT32_MAX; 533 error = promise_meta_write(cp, &meta, 1); 534 free(meta, M_MD_PROMISE); 535 return (error); 536 } 537 538 static struct g_raid_volume * 539 g_raid_md_promise_get_volume(struct g_raid_softc *sc, uint64_t id) 540 { 541 struct g_raid_volume *vol; 542 struct g_raid_md_promise_pervolume *pv; 543 544 TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) { 545 pv = vol->v_md_data; 546 if (pv->pv_id == id) 547 break; 548 } 549 return (vol); 550 } 551 552 static int 553 g_raid_md_promise_purge_volumes(struct g_raid_softc *sc) 554 { 555 struct g_raid_volume *vol, *tvol; 556 struct g_raid_md_promise_pervolume *pv; 557 int i, res; 558 559 res = 0; 560 TAILQ_FOREACH_SAFE(vol, &sc->sc_volumes, v_next, tvol) { 561 pv = vol->v_md_data; 562 if (!pv->pv_started || vol->v_stopping) 563 continue; 564 for (i = 0; i < vol->v_disks_count; i++) { 565 if (vol->v_subdisks[i].sd_state != G_RAID_SUBDISK_S_NONE) 566 break; 567 } 568 if (i >= vol->v_disks_count) { 569 g_raid_destroy_volume(vol); 570 res = 1; 571 } 572 } 573 return (res); 574 } 575 576 static int 577 g_raid_md_promise_purge_disks(struct g_raid_softc *sc) 578 { 579 struct g_raid_disk *disk, *tdisk; 580 struct g_raid_volume *vol; 581 struct g_raid_md_promise_perdisk *pd; 582 int i, j, res; 583 584 res = 0; 585 TAILQ_FOREACH_SAFE(disk, &sc->sc_disks, d_next, tdisk) { 586 if (disk->d_state == G_RAID_DISK_S_SPARE) 587 continue; 588 pd = (struct g_raid_md_promise_perdisk *)disk->d_md_data; 589 590 /* Scan for deleted volumes. */ 591 for (i = 0; i < pd->pd_subdisks; ) { 592 vol = g_raid_md_promise_get_volume(sc, 593 pd->pd_meta[i]->volume_id); 594 if (vol != NULL && !vol->v_stopping) { 595 i++; 596 continue; 597 } 598 free(pd->pd_meta[i], M_MD_PROMISE); 599 for (j = i; j < pd->pd_subdisks - 1; j++) 600 pd->pd_meta[j] = pd->pd_meta[j + 1]; 601 pd->pd_meta[pd->pd_subdisks - 1] = NULL; 602 pd->pd_subdisks--; 603 pd->pd_updated = 1; 604 } 605 606 /* If there is no metadata left - erase and delete disk. */ 607 if (pd->pd_subdisks == 0) { 608 promise_meta_erase(disk->d_consumer); 609 g_raid_destroy_disk(disk); 610 res = 1; 611 } 612 } 613 return (res); 614 } 615 616 static int 617 g_raid_md_promise_supported(int level, int qual, int disks, int force) 618 { 619 620 if (disks > PROMISE_MAX_DISKS) 621 return (0); 622 switch (level) { 623 case G_RAID_VOLUME_RL_RAID0: 624 if (disks < 1) 625 return (0); 626 if (!force && disks < 2) 627 return (0); 628 break; 629 case G_RAID_VOLUME_RL_RAID1: 630 if (disks < 1) 631 return (0); 632 if (!force && (disks != 2)) 633 return (0); 634 break; 635 case G_RAID_VOLUME_RL_RAID1E: 636 if (disks < 2) 637 return (0); 638 if (disks % 2 != 0) 639 return (0); 640 if (!force && (disks != 4)) 641 return (0); 642 break; 643 case G_RAID_VOLUME_RL_SINGLE: 644 if (disks != 1) 645 return (0); 646 break; 647 case G_RAID_VOLUME_RL_CONCAT: 648 if (disks < 2) 649 return (0); 650 break; 651 case G_RAID_VOLUME_RL_RAID5: 652 if (disks < 3) 653 return (0); 654 if (qual != G_RAID_VOLUME_RLQ_R5LA) 655 return (0); 656 break; 657 default: 658 return (0); 659 } 660 if (level != G_RAID_VOLUME_RL_RAID5 && qual != G_RAID_VOLUME_RLQ_NONE) 661 return (0); 662 return (1); 663 } 664 665 static int 666 g_raid_md_promise_start_disk(struct g_raid_disk *disk, int sdn, 667 struct g_raid_volume *vol) 668 { 669 struct g_raid_softc *sc; 670 struct g_raid_subdisk *sd; 671 struct g_raid_md_promise_perdisk *pd; 672 struct g_raid_md_promise_pervolume *pv; 673 struct promise_raid_conf *meta; 674 off_t eoff, esize, size; 675 int disk_pos, md_disk_pos, i, resurrection = 0; 676 677 sc = disk->d_softc; 678 pd = (struct g_raid_md_promise_perdisk *)disk->d_md_data; 679 680 pv = vol->v_md_data; 681 meta = pv->pv_meta; 682 683 if (sdn >= 0) { 684 /* Find disk position in metadata by its serial. */ 685 md_disk_pos = promise_meta_find_disk(meta, pd->pd_meta[sdn]->disk.id); 686 /* For RAID0+1 we need to translate order. */ 687 disk_pos = promise_meta_translate_disk(vol, md_disk_pos); 688 } else { 689 md_disk_pos = -1; 690 disk_pos = -1; 691 } 692 if (disk_pos < 0) { 693 G_RAID_DEBUG1(1, sc, "Disk %s is not part of the volume %s", 694 g_raid_get_diskname(disk), vol->v_name); 695 /* Failed stale disk is useless for us. */ 696 if (sdn >= 0 && 697 pd->pd_meta[sdn]->disk.flags & PROMISE_F_DOWN) { 698 g_raid_change_disk_state(disk, G_RAID_DISK_S_STALE_FAILED); 699 return (0); 700 } 701 /* If we were given specific metadata subdisk - erase it. */ 702 if (sdn >= 0) { 703 free(pd->pd_meta[sdn], M_MD_PROMISE); 704 for (i = sdn; i < pd->pd_subdisks - 1; i++) 705 pd->pd_meta[i] = pd->pd_meta[i + 1]; 706 pd->pd_meta[pd->pd_subdisks - 1] = NULL; 707 pd->pd_subdisks--; 708 } 709 /* If we are in the start process, that's all for now. */ 710 if (!pv->pv_started) 711 goto nofit; 712 /* 713 * If we have already started - try to get use of the disk. 714 * Try to replace OFFLINE disks first, then FAILED. 715 */ 716 promise_meta_unused_range(pd->pd_meta, pd->pd_subdisks, 717 disk->d_consumer->provider->mediasize / 718 disk->d_consumer->provider->sectorsize, 719 &eoff, &esize); 720 if (esize == 0) { 721 G_RAID_DEBUG1(1, sc, "No free space on disk %s", 722 g_raid_get_diskname(disk)); 723 goto nofit; 724 } 725 size = INT64_MAX; 726 for (i = 0; i < vol->v_disks_count; i++) { 727 sd = &vol->v_subdisks[i]; 728 if (sd->sd_state != G_RAID_SUBDISK_S_NONE) 729 size = sd->sd_size; 730 if (sd->sd_state <= G_RAID_SUBDISK_S_FAILED && 731 (disk_pos < 0 || 732 vol->v_subdisks[i].sd_state < sd->sd_state)) 733 disk_pos = i; 734 } 735 if (disk_pos >= 0 && 736 vol->v_raid_level != G_RAID_VOLUME_RL_CONCAT && 737 (off_t)esize * 512 < size) { 738 G_RAID_DEBUG1(1, sc, "Disk %s free space " 739 "is too small (%ju < %ju)", 740 g_raid_get_diskname(disk), 741 (off_t)esize * 512, size); 742 disk_pos = -1; 743 } 744 if (disk_pos >= 0) { 745 if (vol->v_raid_level != G_RAID_VOLUME_RL_CONCAT) 746 esize = size / 512; 747 /* For RAID0+1 we need to translate order. */ 748 md_disk_pos = promise_meta_translate_disk(vol, disk_pos); 749 } else { 750 nofit: 751 if (pd->pd_subdisks == 0) { 752 g_raid_change_disk_state(disk, 753 G_RAID_DISK_S_SPARE); 754 } 755 return (0); 756 } 757 G_RAID_DEBUG1(1, sc, "Disk %s takes pos %d in the volume %s", 758 g_raid_get_diskname(disk), disk_pos, vol->v_name); 759 resurrection = 1; 760 } 761 762 sd = &vol->v_subdisks[disk_pos]; 763 764 if (resurrection && sd->sd_disk != NULL) { 765 g_raid_change_disk_state(sd->sd_disk, 766 G_RAID_DISK_S_STALE_FAILED); 767 TAILQ_REMOVE(&sd->sd_disk->d_subdisks, 768 sd, sd_next); 769 } 770 vol->v_subdisks[disk_pos].sd_disk = disk; 771 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 772 773 /* Welcome the new disk. */ 774 if (resurrection) 775 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE); 776 else if (meta->disks[md_disk_pos].flags & PROMISE_F_DOWN) 777 g_raid_change_disk_state(disk, G_RAID_DISK_S_FAILED); 778 else 779 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE); 780 781 if (resurrection) { 782 sd->sd_offset = (off_t)eoff * 512; 783 sd->sd_size = (off_t)esize * 512; 784 } else { 785 sd->sd_offset = (((off_t)pd->pd_meta[sdn]->disk_offset_high 786 << 32) + pd->pd_meta[sdn]->disk_offset) * 512; 787 sd->sd_size = (((off_t)pd->pd_meta[sdn]->disk_sectors_high 788 << 32) + pd->pd_meta[sdn]->disk_sectors) * 512; 789 } 790 791 if (resurrection) { 792 /* Stale disk, almost same as new. */ 793 g_raid_change_subdisk_state(sd, 794 G_RAID_SUBDISK_S_NEW); 795 } else if (meta->disks[md_disk_pos].flags & PROMISE_F_DOWN) { 796 /* Failed disk. */ 797 g_raid_change_subdisk_state(sd, 798 G_RAID_SUBDISK_S_FAILED); 799 } else if (meta->disks[md_disk_pos].flags & PROMISE_F_REDIR) { 800 /* Rebuilding disk. */ 801 g_raid_change_subdisk_state(sd, 802 G_RAID_SUBDISK_S_REBUILD); 803 if (pd->pd_meta[sdn]->generation != meta->generation) 804 sd->sd_rebuild_pos = 0; 805 else { 806 sd->sd_rebuild_pos = 807 (((off_t)pd->pd_meta[sdn]->disk_rebuild_high << 32) + 808 pd->pd_meta[sdn]->disk_rebuild) * 512; 809 } 810 } else if (!(meta->disks[md_disk_pos].flags & PROMISE_F_ONLINE)) { 811 /* Rebuilding disk. */ 812 g_raid_change_subdisk_state(sd, 813 G_RAID_SUBDISK_S_NEW); 814 } else if (pd->pd_meta[sdn]->generation != meta->generation || 815 (meta->status & PROMISE_S_MARKED)) { 816 /* Stale disk or dirty volume (unclean shutdown). */ 817 g_raid_change_subdisk_state(sd, 818 G_RAID_SUBDISK_S_STALE); 819 } else { 820 /* Up to date disk. */ 821 g_raid_change_subdisk_state(sd, 822 G_RAID_SUBDISK_S_ACTIVE); 823 } 824 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 825 G_RAID_EVENT_SUBDISK); 826 827 return (resurrection); 828 } 829 830 static void 831 g_raid_md_promise_refill(struct g_raid_softc *sc) 832 { 833 struct g_raid_volume *vol; 834 struct g_raid_subdisk *sd; 835 struct g_raid_disk *disk; 836 struct g_raid_md_object *md; 837 struct g_raid_md_promise_perdisk *pd; 838 struct g_raid_md_promise_pervolume *pv; 839 int update, updated, i, bad; 840 841 md = sc->sc_md; 842 restart: 843 updated = 0; 844 TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) { 845 pv = vol->v_md_data; 846 if (!pv->pv_started || vol->v_stopping) 847 continue; 848 849 /* Search for subdisk that needs replacement. */ 850 bad = 0; 851 for (i = 0; i < vol->v_disks_count; i++) { 852 sd = &vol->v_subdisks[i]; 853 if (sd->sd_state == G_RAID_SUBDISK_S_NONE || 854 sd->sd_state == G_RAID_SUBDISK_S_FAILED) 855 bad = 1; 856 } 857 if (!bad) 858 continue; 859 860 G_RAID_DEBUG1(1, sc, "Volume %s is not complete, " 861 "trying to refill.", vol->v_name); 862 863 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 864 /* Skip failed. */ 865 if (disk->d_state < G_RAID_DISK_S_SPARE) 866 continue; 867 /* Skip already used by this volume. */ 868 for (i = 0; i < vol->v_disks_count; i++) { 869 sd = &vol->v_subdisks[i]; 870 if (sd->sd_disk == disk) 871 break; 872 } 873 if (i < vol->v_disks_count) 874 continue; 875 876 /* Try to use disk if it has empty extents. */ 877 pd = disk->d_md_data; 878 if (pd->pd_subdisks < PROMISE_MAX_SUBDISKS) { 879 update = 880 g_raid_md_promise_start_disk(disk, -1, vol); 881 } else 882 update = 0; 883 if (update) { 884 updated = 1; 885 g_raid_md_write_promise(md, vol, NULL, disk); 886 break; 887 } 888 } 889 } 890 if (updated) 891 goto restart; 892 } 893 894 static void 895 g_raid_md_promise_start(struct g_raid_volume *vol) 896 { 897 struct g_raid_softc *sc; 898 struct g_raid_subdisk *sd; 899 struct g_raid_disk *disk; 900 struct g_raid_md_object *md; 901 struct g_raid_md_promise_perdisk *pd; 902 struct g_raid_md_promise_pervolume *pv; 903 struct promise_raid_conf *meta; 904 u_int i; 905 906 sc = vol->v_softc; 907 md = sc->sc_md; 908 pv = vol->v_md_data; 909 meta = pv->pv_meta; 910 911 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_NONE; 912 if (meta->type == PROMISE_T_RAID0) 913 vol->v_raid_level = G_RAID_VOLUME_RL_RAID0; 914 else if (meta->type == PROMISE_T_RAID1) { 915 if (meta->array_width == 1) 916 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1; 917 else 918 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1E; 919 } else if (meta->type == PROMISE_T_RAID3) 920 vol->v_raid_level = G_RAID_VOLUME_RL_RAID3; 921 else if (meta->type == PROMISE_T_RAID5) { 922 vol->v_raid_level = G_RAID_VOLUME_RL_RAID5; 923 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_R5LA; 924 } else if (meta->type == PROMISE_T_SPAN) 925 vol->v_raid_level = G_RAID_VOLUME_RL_CONCAT; 926 else if (meta->type == PROMISE_T_JBOD) 927 vol->v_raid_level = G_RAID_VOLUME_RL_SINGLE; 928 else 929 vol->v_raid_level = G_RAID_VOLUME_RL_UNKNOWN; 930 vol->v_strip_size = 512 << meta->stripe_shift; //ZZZ 931 vol->v_disks_count = meta->total_disks; 932 vol->v_mediasize = (off_t)meta->total_sectors * 512; //ZZZ 933 if (meta->total_sectors_high < 256) /* If value looks sane. */ 934 vol->v_mediasize += 935 ((off_t)meta->total_sectors_high << 32) * 512; //ZZZ 936 vol->v_sectorsize = 512 * meta->sector_size; 937 for (i = 0; i < vol->v_disks_count; i++) { 938 sd = &vol->v_subdisks[i]; 939 sd->sd_offset = (((off_t)meta->disk_offset_high << 32) + 940 meta->disk_offset) * 512; 941 sd->sd_size = (((off_t)meta->disk_sectors_high << 32) + 942 meta->disk_sectors) * 512; 943 } 944 g_raid_start_volume(vol); 945 946 /* Make all disks found till the moment take their places. */ 947 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 948 pd = disk->d_md_data; 949 for (i = 0; i < pd->pd_subdisks; i++) { 950 if (pd->pd_meta[i]->volume_id == meta->volume_id) 951 g_raid_md_promise_start_disk(disk, i, vol); 952 } 953 } 954 955 pv->pv_started = 1; 956 callout_stop(&pv->pv_start_co); 957 G_RAID_DEBUG1(0, sc, "Volume started."); 958 g_raid_md_write_promise(md, vol, NULL, NULL); 959 960 /* Pickup any STALE/SPARE disks to refill array if needed. */ 961 g_raid_md_promise_refill(sc); 962 963 g_raid_event_send(vol, G_RAID_VOLUME_E_START, G_RAID_EVENT_VOLUME); 964 } 965 966 static void 967 g_raid_promise_go(void *arg) 968 { 969 struct g_raid_volume *vol; 970 struct g_raid_softc *sc; 971 struct g_raid_md_promise_pervolume *pv; 972 973 vol = arg; 974 pv = vol->v_md_data; 975 sc = vol->v_softc; 976 if (!pv->pv_started) { 977 G_RAID_DEBUG1(0, sc, "Force volume start due to timeout."); 978 g_raid_event_send(vol, G_RAID_VOLUME_E_STARTMD, 979 G_RAID_EVENT_VOLUME); 980 } 981 } 982 983 static void 984 g_raid_md_promise_new_disk(struct g_raid_disk *disk) 985 { 986 struct g_raid_softc *sc; 987 struct g_raid_md_object *md; 988 struct promise_raid_conf *pdmeta; 989 struct g_raid_md_promise_perdisk *pd; 990 struct g_raid_md_promise_pervolume *pv; 991 struct g_raid_volume *vol; 992 int i; 993 char buf[33]; 994 995 sc = disk->d_softc; 996 md = sc->sc_md; 997 pd = (struct g_raid_md_promise_perdisk *)disk->d_md_data; 998 999 if (pd->pd_subdisks == 0) { 1000 g_raid_change_disk_state(disk, G_RAID_DISK_S_SPARE); 1001 g_raid_md_promise_refill(sc); 1002 return; 1003 } 1004 1005 for (i = 0; i < pd->pd_subdisks; i++) { 1006 pdmeta = pd->pd_meta[i]; 1007 1008 /* Look for volume with matching ID. */ 1009 vol = g_raid_md_promise_get_volume(sc, pdmeta->volume_id); 1010 if (vol == NULL) { 1011 promise_meta_get_name(pdmeta, buf); 1012 vol = g_raid_create_volume(sc, buf, pdmeta->array_number); 1013 pv = malloc(sizeof(*pv), M_MD_PROMISE, M_WAITOK | M_ZERO); 1014 pv->pv_id = pdmeta->volume_id; 1015 vol->v_md_data = pv; 1016 callout_init(&pv->pv_start_co, 1); 1017 callout_reset(&pv->pv_start_co, 1018 g_raid_start_timeout * hz, 1019 g_raid_promise_go, vol); 1020 } else 1021 pv = vol->v_md_data; 1022 1023 /* If we haven't started yet - check metadata freshness. */ 1024 if (pv->pv_meta == NULL || !pv->pv_started) { 1025 if (pv->pv_meta == NULL || 1026 ((int16_t)(pdmeta->generation - pv->pv_generation)) > 0) { 1027 G_RAID_DEBUG1(1, sc, "Newer disk"); 1028 if (pv->pv_meta != NULL) 1029 free(pv->pv_meta, M_MD_PROMISE); 1030 pv->pv_meta = promise_meta_copy(pdmeta); 1031 pv->pv_generation = pv->pv_meta->generation; 1032 pv->pv_disks_present = 1; 1033 } else if (pdmeta->generation == pv->pv_generation) { 1034 pv->pv_disks_present++; 1035 G_RAID_DEBUG1(1, sc, "Matching disk (%d of %d up)", 1036 pv->pv_disks_present, 1037 pv->pv_meta->total_disks); 1038 } else { 1039 G_RAID_DEBUG1(1, sc, "Older disk"); 1040 } 1041 } 1042 } 1043 1044 for (i = 0; i < pd->pd_subdisks; i++) { 1045 pdmeta = pd->pd_meta[i]; 1046 1047 /* Look for volume with matching ID. */ 1048 vol = g_raid_md_promise_get_volume(sc, pdmeta->volume_id); 1049 if (vol == NULL) 1050 continue; 1051 pv = vol->v_md_data; 1052 1053 if (pv->pv_started) { 1054 if (g_raid_md_promise_start_disk(disk, i, vol)) 1055 g_raid_md_write_promise(md, vol, NULL, NULL); 1056 } else { 1057 /* If we collected all needed disks - start array. */ 1058 if (pv->pv_disks_present == pv->pv_meta->total_disks) 1059 g_raid_md_promise_start(vol); 1060 } 1061 } 1062 } 1063 1064 static int 1065 g_raid_md_create_promise(struct g_raid_md_object *md, struct g_class *mp, 1066 struct g_geom **gp) 1067 { 1068 struct g_geom *geom; 1069 struct g_raid_softc *sc; 1070 1071 /* Search for existing node. */ 1072 LIST_FOREACH(geom, &mp->geom, geom) { 1073 sc = geom->softc; 1074 if (sc == NULL) 1075 continue; 1076 if (sc->sc_stopping != 0) 1077 continue; 1078 if (sc->sc_md->mdo_class != md->mdo_class) 1079 continue; 1080 break; 1081 } 1082 if (geom != NULL) { 1083 *gp = geom; 1084 return (G_RAID_MD_TASTE_EXISTING); 1085 } 1086 1087 /* Create new one if not found. */ 1088 sc = g_raid_create_node(mp, "Promise", md); 1089 if (sc == NULL) 1090 return (G_RAID_MD_TASTE_FAIL); 1091 md->mdo_softc = sc; 1092 *gp = sc->sc_geom; 1093 return (G_RAID_MD_TASTE_NEW); 1094 } 1095 1096 static int 1097 g_raid_md_taste_promise(struct g_raid_md_object *md, struct g_class *mp, 1098 struct g_consumer *cp, struct g_geom **gp) 1099 { 1100 struct g_consumer *rcp; 1101 struct g_provider *pp; 1102 struct g_raid_softc *sc; 1103 struct g_raid_disk *disk; 1104 struct promise_raid_conf *metaarr[4]; 1105 struct g_raid_md_promise_perdisk *pd; 1106 struct g_geom *geom; 1107 int i, j, result, len, subdisks; 1108 char name[16]; 1109 uint16_t vendor; 1110 1111 G_RAID_DEBUG(1, "Tasting Promise on %s", cp->provider->name); 1112 pp = cp->provider; 1113 1114 /* Read metadata from device. */ 1115 g_topology_unlock(); 1116 vendor = 0xffff; 1117 len = sizeof(vendor); 1118 if (pp->geom->rank == 1) 1119 g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor); 1120 subdisks = promise_meta_read(cp, metaarr); 1121 g_topology_lock(); 1122 if (subdisks == 0) { 1123 if (g_raid_aggressive_spare) { 1124 if (vendor == 0x105a || vendor == 0x1002) { 1125 G_RAID_DEBUG(1, 1126 "No Promise metadata, forcing spare."); 1127 goto search; 1128 } else { 1129 G_RAID_DEBUG(1, 1130 "Promise/ATI vendor mismatch " 1131 "0x%04x != 0x105a/0x1002", 1132 vendor); 1133 } 1134 } 1135 return (G_RAID_MD_TASTE_FAIL); 1136 } 1137 1138 /* Metadata valid. Print it. */ 1139 for (i = 0; i < subdisks; i++) 1140 g_raid_md_promise_print(metaarr[i]); 1141 1142 /* Purge meaningless (empty/spare) records. */ 1143 for (i = 0; i < subdisks; ) { 1144 if (metaarr[i]->disk.flags & PROMISE_F_ASSIGNED) { 1145 i++; 1146 continue; 1147 } 1148 free(metaarr[i], M_MD_PROMISE); 1149 for (j = i; j < subdisks - 1; j++) 1150 metaarr[i] = metaarr[j + 1]; 1151 metaarr[subdisks - 1] = NULL; 1152 subdisks--; 1153 } 1154 1155 search: 1156 /* Search for matching node. */ 1157 sc = NULL; 1158 LIST_FOREACH(geom, &mp->geom, geom) { 1159 sc = geom->softc; 1160 if (sc == NULL) 1161 continue; 1162 if (sc->sc_stopping != 0) 1163 continue; 1164 if (sc->sc_md->mdo_class != md->mdo_class) 1165 continue; 1166 break; 1167 } 1168 1169 /* Found matching node. */ 1170 if (geom != NULL) { 1171 G_RAID_DEBUG(1, "Found matching array %s", sc->sc_name); 1172 result = G_RAID_MD_TASTE_EXISTING; 1173 1174 } else { /* Not found matching node -- create one. */ 1175 result = G_RAID_MD_TASTE_NEW; 1176 snprintf(name, sizeof(name), "Promise"); 1177 sc = g_raid_create_node(mp, name, md); 1178 md->mdo_softc = sc; 1179 geom = sc->sc_geom; 1180 } 1181 1182 /* There is no return after this point, so we close passed consumer. */ 1183 g_access(cp, -1, 0, 0); 1184 1185 rcp = g_new_consumer(geom); 1186 rcp->flags |= G_CF_DIRECT_RECEIVE; 1187 g_attach(rcp, pp); 1188 if (g_access(rcp, 1, 1, 1) != 0) 1189 ; //goto fail1; 1190 1191 g_topology_unlock(); 1192 sx_xlock(&sc->sc_lock); 1193 1194 pd = malloc(sizeof(*pd), M_MD_PROMISE, M_WAITOK | M_ZERO); 1195 pd->pd_subdisks = subdisks; 1196 for (i = 0; i < subdisks; i++) 1197 pd->pd_meta[i] = metaarr[i]; 1198 disk = g_raid_create_disk(sc); 1199 disk->d_md_data = (void *)pd; 1200 disk->d_consumer = rcp; 1201 rcp->private = disk; 1202 1203 g_raid_get_disk_info(disk); 1204 1205 g_raid_md_promise_new_disk(disk); 1206 1207 sx_xunlock(&sc->sc_lock); 1208 g_topology_lock(); 1209 *gp = geom; 1210 return (result); 1211 } 1212 1213 static int 1214 g_raid_md_event_promise(struct g_raid_md_object *md, 1215 struct g_raid_disk *disk, u_int event) 1216 { 1217 struct g_raid_softc *sc; 1218 1219 sc = md->mdo_softc; 1220 if (disk == NULL) 1221 return (-1); 1222 switch (event) { 1223 case G_RAID_DISK_E_DISCONNECTED: 1224 /* Delete disk. */ 1225 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 1226 g_raid_destroy_disk(disk); 1227 g_raid_md_promise_purge_volumes(sc); 1228 1229 /* Write updated metadata to all disks. */ 1230 g_raid_md_write_promise(md, NULL, NULL, NULL); 1231 1232 /* Check if anything left. */ 1233 if (g_raid_ndisks(sc, -1) == 0) 1234 g_raid_destroy_node(sc, 0); 1235 else 1236 g_raid_md_promise_refill(sc); 1237 return (0); 1238 } 1239 return (-2); 1240 } 1241 1242 static int 1243 g_raid_md_volume_event_promise(struct g_raid_md_object *md, 1244 struct g_raid_volume *vol, u_int event) 1245 { 1246 struct g_raid_md_promise_pervolume *pv; 1247 1248 pv = (struct g_raid_md_promise_pervolume *)vol->v_md_data; 1249 switch (event) { 1250 case G_RAID_VOLUME_E_STARTMD: 1251 if (!pv->pv_started) 1252 g_raid_md_promise_start(vol); 1253 return (0); 1254 } 1255 return (-2); 1256 } 1257 1258 static int 1259 g_raid_md_ctl_promise(struct g_raid_md_object *md, 1260 struct gctl_req *req) 1261 { 1262 struct g_raid_softc *sc; 1263 struct g_raid_volume *vol, *vol1; 1264 struct g_raid_subdisk *sd; 1265 struct g_raid_disk *disk, *disks[PROMISE_MAX_DISKS]; 1266 struct g_raid_md_promise_perdisk *pd; 1267 struct g_raid_md_promise_pervolume *pv; 1268 struct g_consumer *cp; 1269 struct g_provider *pp; 1270 char arg[16]; 1271 const char *nodename, *verb, *volname, *levelname, *diskname; 1272 char *tmp; 1273 int *nargs, *force; 1274 off_t esize, offs[PROMISE_MAX_DISKS], size, sectorsize, strip; 1275 intmax_t *sizearg, *striparg; 1276 int numdisks, i, len, level, qual; 1277 int error; 1278 1279 sc = md->mdo_softc; 1280 verb = gctl_get_param(req, "verb", NULL); 1281 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 1282 error = 0; 1283 if (strcmp(verb, "label") == 0) { 1284 1285 if (*nargs < 4) { 1286 gctl_error(req, "Invalid number of arguments."); 1287 return (-1); 1288 } 1289 volname = gctl_get_asciiparam(req, "arg1"); 1290 if (volname == NULL) { 1291 gctl_error(req, "No volume name."); 1292 return (-2); 1293 } 1294 levelname = gctl_get_asciiparam(req, "arg2"); 1295 if (levelname == NULL) { 1296 gctl_error(req, "No RAID level."); 1297 return (-3); 1298 } 1299 if (strcasecmp(levelname, "RAID5") == 0) 1300 levelname = "RAID5-LA"; 1301 if (g_raid_volume_str2level(levelname, &level, &qual)) { 1302 gctl_error(req, "Unknown RAID level '%s'.", levelname); 1303 return (-4); 1304 } 1305 numdisks = *nargs - 3; 1306 force = gctl_get_paraml(req, "force", sizeof(*force)); 1307 if (!g_raid_md_promise_supported(level, qual, numdisks, 1308 force ? *force : 0)) { 1309 gctl_error(req, "Unsupported RAID level " 1310 "(0x%02x/0x%02x), or number of disks (%d).", 1311 level, qual, numdisks); 1312 return (-5); 1313 } 1314 1315 /* Search for disks, connect them and probe. */ 1316 size = INT64_MAX; 1317 sectorsize = 0; 1318 bzero(disks, sizeof(disks)); 1319 bzero(offs, sizeof(offs)); 1320 for (i = 0; i < numdisks; i++) { 1321 snprintf(arg, sizeof(arg), "arg%d", i + 3); 1322 diskname = gctl_get_asciiparam(req, arg); 1323 if (diskname == NULL) { 1324 gctl_error(req, "No disk name (%s).", arg); 1325 error = -6; 1326 break; 1327 } 1328 if (strcmp(diskname, "NONE") == 0) 1329 continue; 1330 1331 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1332 if (disk->d_consumer != NULL && 1333 disk->d_consumer->provider != NULL && 1334 strcmp(disk->d_consumer->provider->name, 1335 diskname) == 0) 1336 break; 1337 } 1338 if (disk != NULL) { 1339 if (disk->d_state != G_RAID_DISK_S_ACTIVE) { 1340 gctl_error(req, "Disk '%s' is in a " 1341 "wrong state (%s).", diskname, 1342 g_raid_disk_state2str(disk->d_state)); 1343 error = -7; 1344 break; 1345 } 1346 pd = disk->d_md_data; 1347 if (pd->pd_subdisks >= PROMISE_MAX_SUBDISKS) { 1348 gctl_error(req, "Disk '%s' already " 1349 "used by %d volumes.", 1350 diskname, pd->pd_subdisks); 1351 error = -7; 1352 break; 1353 } 1354 pp = disk->d_consumer->provider; 1355 disks[i] = disk; 1356 promise_meta_unused_range(pd->pd_meta, 1357 pd->pd_subdisks, 1358 pp->mediasize / pp->sectorsize, 1359 &offs[i], &esize); 1360 size = MIN(size, (off_t)esize * pp->sectorsize); 1361 sectorsize = MAX(sectorsize, pp->sectorsize); 1362 continue; 1363 } 1364 1365 g_topology_lock(); 1366 cp = g_raid_open_consumer(sc, diskname); 1367 if (cp == NULL) { 1368 gctl_error(req, "Can't open disk '%s'.", 1369 diskname); 1370 g_topology_unlock(); 1371 error = -8; 1372 break; 1373 } 1374 pp = cp->provider; 1375 pd = malloc(sizeof(*pd), M_MD_PROMISE, M_WAITOK | M_ZERO); 1376 disk = g_raid_create_disk(sc); 1377 disk->d_md_data = (void *)pd; 1378 disk->d_consumer = cp; 1379 disks[i] = disk; 1380 cp->private = disk; 1381 g_topology_unlock(); 1382 1383 g_raid_get_disk_info(disk); 1384 1385 /* Reserve some space for metadata. */ 1386 size = MIN(size, pp->mediasize - 131072llu * pp->sectorsize); 1387 sectorsize = MAX(sectorsize, pp->sectorsize); 1388 } 1389 if (error != 0) { 1390 for (i = 0; i < numdisks; i++) { 1391 if (disks[i] != NULL && 1392 disks[i]->d_state == G_RAID_DISK_S_NONE) 1393 g_raid_destroy_disk(disks[i]); 1394 } 1395 return (error); 1396 } 1397 1398 if (sectorsize <= 0) { 1399 gctl_error(req, "Can't get sector size."); 1400 return (-8); 1401 } 1402 1403 /* Handle size argument. */ 1404 len = sizeof(*sizearg); 1405 sizearg = gctl_get_param(req, "size", &len); 1406 if (sizearg != NULL && len == sizeof(*sizearg) && 1407 *sizearg > 0) { 1408 if (*sizearg > size) { 1409 gctl_error(req, "Size too big %lld > %lld.", 1410 (long long)*sizearg, (long long)size); 1411 return (-9); 1412 } 1413 size = *sizearg; 1414 } 1415 1416 /* Handle strip argument. */ 1417 strip = 131072; 1418 len = sizeof(*striparg); 1419 striparg = gctl_get_param(req, "strip", &len); 1420 if (striparg != NULL && len == sizeof(*striparg) && 1421 *striparg > 0) { 1422 if (*striparg < sectorsize) { 1423 gctl_error(req, "Strip size too small."); 1424 return (-10); 1425 } 1426 if (*striparg % sectorsize != 0) { 1427 gctl_error(req, "Incorrect strip size."); 1428 return (-11); 1429 } 1430 strip = *striparg; 1431 } 1432 1433 /* Round size down to strip or sector. */ 1434 if (level == G_RAID_VOLUME_RL_RAID1 || 1435 level == G_RAID_VOLUME_RL_SINGLE || 1436 level == G_RAID_VOLUME_RL_CONCAT) 1437 size -= (size % sectorsize); 1438 else if (level == G_RAID_VOLUME_RL_RAID1E && 1439 (numdisks & 1) != 0) 1440 size -= (size % (2 * strip)); 1441 else 1442 size -= (size % strip); 1443 if (size <= 0) { 1444 gctl_error(req, "Size too small."); 1445 return (-13); 1446 } 1447 1448 /* We have all we need, create things: volume, ... */ 1449 pv = malloc(sizeof(*pv), M_MD_PROMISE, M_WAITOK | M_ZERO); 1450 arc4rand(&pv->pv_id, sizeof(pv->pv_id), 0); 1451 pv->pv_generation = 0; 1452 pv->pv_started = 1; 1453 vol = g_raid_create_volume(sc, volname, -1); 1454 vol->v_md_data = pv; 1455 vol->v_raid_level = level; 1456 vol->v_raid_level_qualifier = qual; 1457 vol->v_strip_size = strip; 1458 vol->v_disks_count = numdisks; 1459 if (level == G_RAID_VOLUME_RL_RAID0 || 1460 level == G_RAID_VOLUME_RL_CONCAT || 1461 level == G_RAID_VOLUME_RL_SINGLE) 1462 vol->v_mediasize = size * numdisks; 1463 else if (level == G_RAID_VOLUME_RL_RAID1) 1464 vol->v_mediasize = size; 1465 else if (level == G_RAID_VOLUME_RL_RAID3 || 1466 level == G_RAID_VOLUME_RL_RAID5) 1467 vol->v_mediasize = size * (numdisks - 1); 1468 else { /* RAID1E */ 1469 vol->v_mediasize = ((size * numdisks) / strip / 2) * 1470 strip; 1471 } 1472 vol->v_sectorsize = sectorsize; 1473 g_raid_start_volume(vol); 1474 1475 /* , and subdisks. */ 1476 for (i = 0; i < numdisks; i++) { 1477 disk = disks[i]; 1478 sd = &vol->v_subdisks[i]; 1479 sd->sd_disk = disk; 1480 sd->sd_offset = (off_t)offs[i] * 512; 1481 sd->sd_size = size; 1482 if (disk == NULL) 1483 continue; 1484 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 1485 g_raid_change_disk_state(disk, 1486 G_RAID_DISK_S_ACTIVE); 1487 g_raid_change_subdisk_state(sd, 1488 G_RAID_SUBDISK_S_ACTIVE); 1489 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 1490 G_RAID_EVENT_SUBDISK); 1491 } 1492 1493 /* Write metadata based on created entities. */ 1494 G_RAID_DEBUG1(0, sc, "Array started."); 1495 g_raid_md_write_promise(md, vol, NULL, NULL); 1496 1497 /* Pickup any STALE/SPARE disks to refill array if needed. */ 1498 g_raid_md_promise_refill(sc); 1499 1500 g_raid_event_send(vol, G_RAID_VOLUME_E_START, 1501 G_RAID_EVENT_VOLUME); 1502 return (0); 1503 } 1504 if (strcmp(verb, "add") == 0) { 1505 1506 gctl_error(req, "`add` command is not applicable, " 1507 "use `label` instead."); 1508 return (-99); 1509 } 1510 if (strcmp(verb, "delete") == 0) { 1511 1512 nodename = gctl_get_asciiparam(req, "arg0"); 1513 if (nodename != NULL && strcasecmp(sc->sc_name, nodename) != 0) 1514 nodename = NULL; 1515 1516 /* Full node destruction. */ 1517 if (*nargs == 1 && nodename != NULL) { 1518 /* Check if some volume is still open. */ 1519 force = gctl_get_paraml(req, "force", sizeof(*force)); 1520 if (force != NULL && *force == 0 && 1521 g_raid_nopens(sc) != 0) { 1522 gctl_error(req, "Some volume is still open."); 1523 return (-4); 1524 } 1525 1526 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1527 if (disk->d_consumer) 1528 promise_meta_erase(disk->d_consumer); 1529 } 1530 g_raid_destroy_node(sc, 0); 1531 return (0); 1532 } 1533 1534 /* Destroy specified volume. If it was last - all node. */ 1535 if (*nargs > 2) { 1536 gctl_error(req, "Invalid number of arguments."); 1537 return (-1); 1538 } 1539 volname = gctl_get_asciiparam(req, 1540 nodename != NULL ? "arg1" : "arg0"); 1541 if (volname == NULL) { 1542 gctl_error(req, "No volume name."); 1543 return (-2); 1544 } 1545 1546 /* Search for volume. */ 1547 TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) { 1548 if (strcmp(vol->v_name, volname) == 0) 1549 break; 1550 pp = vol->v_provider; 1551 if (pp == NULL) 1552 continue; 1553 if (strcmp(pp->name, volname) == 0) 1554 break; 1555 if (strncmp(pp->name, "raid/", 5) == 0 && 1556 strcmp(pp->name + 5, volname) == 0) 1557 break; 1558 } 1559 if (vol == NULL) { 1560 i = strtol(volname, &tmp, 10); 1561 if (verb != volname && tmp[0] == 0) { 1562 TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) { 1563 if (vol->v_global_id == i) 1564 break; 1565 } 1566 } 1567 } 1568 if (vol == NULL) { 1569 gctl_error(req, "Volume '%s' not found.", volname); 1570 return (-3); 1571 } 1572 1573 /* Check if volume is still open. */ 1574 force = gctl_get_paraml(req, "force", sizeof(*force)); 1575 if (force != NULL && *force == 0 && 1576 vol->v_provider_open != 0) { 1577 gctl_error(req, "Volume is still open."); 1578 return (-4); 1579 } 1580 1581 /* Destroy volume and potentially node. */ 1582 i = 0; 1583 TAILQ_FOREACH(vol1, &sc->sc_volumes, v_next) 1584 i++; 1585 if (i >= 2) { 1586 g_raid_destroy_volume(vol); 1587 g_raid_md_promise_purge_disks(sc); 1588 g_raid_md_write_promise(md, NULL, NULL, NULL); 1589 } else { 1590 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1591 if (disk->d_consumer) 1592 promise_meta_erase(disk->d_consumer); 1593 } 1594 g_raid_destroy_node(sc, 0); 1595 } 1596 return (0); 1597 } 1598 if (strcmp(verb, "remove") == 0 || 1599 strcmp(verb, "fail") == 0) { 1600 if (*nargs < 2) { 1601 gctl_error(req, "Invalid number of arguments."); 1602 return (-1); 1603 } 1604 for (i = 1; i < *nargs; i++) { 1605 snprintf(arg, sizeof(arg), "arg%d", i); 1606 diskname = gctl_get_asciiparam(req, arg); 1607 if (diskname == NULL) { 1608 gctl_error(req, "No disk name (%s).", arg); 1609 error = -2; 1610 break; 1611 } 1612 if (strncmp(diskname, _PATH_DEV, 5) == 0) 1613 diskname += 5; 1614 1615 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1616 if (disk->d_consumer != NULL && 1617 disk->d_consumer->provider != NULL && 1618 strcmp(disk->d_consumer->provider->name, 1619 diskname) == 0) 1620 break; 1621 } 1622 if (disk == NULL) { 1623 gctl_error(req, "Disk '%s' not found.", 1624 diskname); 1625 error = -3; 1626 break; 1627 } 1628 1629 if (strcmp(verb, "fail") == 0) { 1630 g_raid_md_fail_disk_promise(md, NULL, disk); 1631 continue; 1632 } 1633 1634 /* Erase metadata on deleting disk and destroy it. */ 1635 promise_meta_erase(disk->d_consumer); 1636 g_raid_destroy_disk(disk); 1637 } 1638 g_raid_md_promise_purge_volumes(sc); 1639 1640 /* Write updated metadata to remaining disks. */ 1641 g_raid_md_write_promise(md, NULL, NULL, NULL); 1642 1643 /* Check if anything left. */ 1644 if (g_raid_ndisks(sc, -1) == 0) 1645 g_raid_destroy_node(sc, 0); 1646 else 1647 g_raid_md_promise_refill(sc); 1648 return (error); 1649 } 1650 if (strcmp(verb, "insert") == 0) { 1651 if (*nargs < 2) { 1652 gctl_error(req, "Invalid number of arguments."); 1653 return (-1); 1654 } 1655 for (i = 1; i < *nargs; i++) { 1656 /* Get disk name. */ 1657 snprintf(arg, sizeof(arg), "arg%d", i); 1658 diskname = gctl_get_asciiparam(req, arg); 1659 if (diskname == NULL) { 1660 gctl_error(req, "No disk name (%s).", arg); 1661 error = -3; 1662 break; 1663 } 1664 1665 /* Try to find provider with specified name. */ 1666 g_topology_lock(); 1667 cp = g_raid_open_consumer(sc, diskname); 1668 if (cp == NULL) { 1669 gctl_error(req, "Can't open disk '%s'.", 1670 diskname); 1671 g_topology_unlock(); 1672 error = -4; 1673 break; 1674 } 1675 pp = cp->provider; 1676 g_topology_unlock(); 1677 1678 pd = malloc(sizeof(*pd), M_MD_PROMISE, M_WAITOK | M_ZERO); 1679 1680 disk = g_raid_create_disk(sc); 1681 disk->d_consumer = cp; 1682 disk->d_md_data = (void *)pd; 1683 cp->private = disk; 1684 1685 g_raid_get_disk_info(disk); 1686 1687 /* Welcome the "new" disk. */ 1688 g_raid_change_disk_state(disk, G_RAID_DISK_S_SPARE); 1689 promise_meta_write_spare(cp); 1690 g_raid_md_promise_refill(sc); 1691 } 1692 return (error); 1693 } 1694 return (-100); 1695 } 1696 1697 static int 1698 g_raid_md_write_promise(struct g_raid_md_object *md, struct g_raid_volume *tvol, 1699 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1700 { 1701 struct g_raid_softc *sc; 1702 struct g_raid_volume *vol; 1703 struct g_raid_subdisk *sd; 1704 struct g_raid_disk *disk; 1705 struct g_raid_md_promise_perdisk *pd; 1706 struct g_raid_md_promise_pervolume *pv; 1707 struct promise_raid_conf *meta; 1708 off_t rebuild_lba64; 1709 int i, j, pos, rebuild; 1710 1711 sc = md->mdo_softc; 1712 1713 if (sc->sc_stopping == G_RAID_DESTROY_HARD) 1714 return (0); 1715 1716 /* Generate new per-volume metadata for affected volumes. */ 1717 TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) { 1718 if (vol->v_stopping) 1719 continue; 1720 1721 /* Skip volumes not related to specified targets. */ 1722 if (tvol != NULL && vol != tvol) 1723 continue; 1724 if (tsd != NULL && vol != tsd->sd_volume) 1725 continue; 1726 if (tdisk != NULL) { 1727 for (i = 0; i < vol->v_disks_count; i++) { 1728 if (vol->v_subdisks[i].sd_disk == tdisk) 1729 break; 1730 } 1731 if (i >= vol->v_disks_count) 1732 continue; 1733 } 1734 1735 pv = (struct g_raid_md_promise_pervolume *)vol->v_md_data; 1736 pv->pv_generation++; 1737 1738 meta = malloc(sizeof(*meta), M_MD_PROMISE, M_WAITOK | M_ZERO); 1739 if (pv->pv_meta != NULL) 1740 memcpy(meta, pv->pv_meta, sizeof(*meta)); 1741 memcpy(meta->promise_id, PROMISE_MAGIC, 1742 sizeof(PROMISE_MAGIC) - 1); 1743 meta->dummy_0 = 0x00020000; 1744 meta->integrity = PROMISE_I_VALID; 1745 1746 meta->generation = pv->pv_generation; 1747 meta->status = PROMISE_S_VALID | PROMISE_S_ONLINE | 1748 PROMISE_S_INITED | PROMISE_S_READY; 1749 if (vol->v_state <= G_RAID_VOLUME_S_DEGRADED) 1750 meta->status |= PROMISE_S_DEGRADED; 1751 if (vol->v_dirty) 1752 meta->status |= PROMISE_S_MARKED; /* XXX: INVENTED! */ 1753 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID0 || 1754 vol->v_raid_level == G_RAID_VOLUME_RL_SINGLE) 1755 meta->type = PROMISE_T_RAID0; 1756 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1 || 1757 vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) 1758 meta->type = PROMISE_T_RAID1; 1759 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID3) 1760 meta->type = PROMISE_T_RAID3; 1761 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID5) 1762 meta->type = PROMISE_T_RAID5; 1763 else if (vol->v_raid_level == G_RAID_VOLUME_RL_CONCAT) 1764 meta->type = PROMISE_T_SPAN; 1765 else 1766 meta->type = PROMISE_T_JBOD; 1767 meta->total_disks = vol->v_disks_count; 1768 meta->stripe_shift = ffs(vol->v_strip_size / 1024); 1769 meta->array_width = vol->v_disks_count; 1770 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1 || 1771 vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) 1772 meta->array_width /= 2; 1773 meta->array_number = vol->v_global_id; 1774 meta->total_sectors = vol->v_mediasize / 512; 1775 meta->total_sectors_high = (vol->v_mediasize / 512) >> 32; 1776 meta->sector_size = vol->v_sectorsize / 512; 1777 meta->cylinders = meta->total_sectors / (255 * 63) - 1; 1778 meta->heads = 254; 1779 meta->sectors = 63; 1780 meta->volume_id = pv->pv_id; 1781 rebuild_lba64 = UINT64_MAX; 1782 rebuild = 0; 1783 for (i = 0; i < vol->v_disks_count; i++) { 1784 sd = &vol->v_subdisks[i]; 1785 /* For RAID0+1 we need to translate order. */ 1786 pos = promise_meta_translate_disk(vol, i); 1787 meta->disks[pos].flags = PROMISE_F_VALID | 1788 PROMISE_F_ASSIGNED; 1789 if (sd->sd_state == G_RAID_SUBDISK_S_NONE) { 1790 meta->disks[pos].flags |= 0; 1791 } else if (sd->sd_state == G_RAID_SUBDISK_S_FAILED) { 1792 meta->disks[pos].flags |= 1793 PROMISE_F_DOWN | PROMISE_F_REDIR; 1794 } else if (sd->sd_state <= G_RAID_SUBDISK_S_REBUILD) { 1795 meta->disks[pos].flags |= 1796 PROMISE_F_ONLINE | PROMISE_F_REDIR; 1797 if (sd->sd_state == G_RAID_SUBDISK_S_REBUILD) { 1798 rebuild_lba64 = MIN(rebuild_lba64, 1799 sd->sd_rebuild_pos / 512); 1800 } else 1801 rebuild_lba64 = 0; 1802 rebuild = 1; 1803 } else { 1804 meta->disks[pos].flags |= PROMISE_F_ONLINE; 1805 if (sd->sd_state < G_RAID_SUBDISK_S_ACTIVE) { 1806 meta->status |= PROMISE_S_MARKED; 1807 if (sd->sd_state == G_RAID_SUBDISK_S_RESYNC) { 1808 rebuild_lba64 = MIN(rebuild_lba64, 1809 sd->sd_rebuild_pos / 512); 1810 } else 1811 rebuild_lba64 = 0; 1812 } 1813 } 1814 if (pv->pv_meta != NULL) { 1815 meta->disks[pos].id = pv->pv_meta->disks[pos].id; 1816 } else { 1817 meta->disks[pos].number = i * 2; 1818 arc4rand(&meta->disks[pos].id, 1819 sizeof(meta->disks[pos].id), 0); 1820 } 1821 } 1822 promise_meta_put_name(meta, vol->v_name); 1823 1824 /* Try to mimic AMD BIOS rebuild/resync behavior. */ 1825 if (rebuild_lba64 != UINT64_MAX) { 1826 if (rebuild) 1827 meta->magic_3 = 0x03040010UL; /* Rebuild? */ 1828 else 1829 meta->magic_3 = 0x03040008UL; /* Resync? */ 1830 /* Translate from per-disk to per-volume LBA. */ 1831 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1 || 1832 vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) { 1833 rebuild_lba64 *= meta->array_width; 1834 } else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID3 || 1835 vol->v_raid_level == G_RAID_VOLUME_RL_RAID5) { 1836 rebuild_lba64 *= meta->array_width - 1; 1837 } else 1838 rebuild_lba64 = 0; 1839 } else 1840 meta->magic_3 = 0x03000000UL; 1841 meta->rebuild_lba64 = rebuild_lba64; 1842 meta->magic_4 = 0x04010101UL; 1843 1844 /* Replace per-volume metadata with new. */ 1845 if (pv->pv_meta != NULL) 1846 free(pv->pv_meta, M_MD_PROMISE); 1847 pv->pv_meta = meta; 1848 1849 /* Copy new metadata to the disks, adding or replacing old. */ 1850 for (i = 0; i < vol->v_disks_count; i++) { 1851 sd = &vol->v_subdisks[i]; 1852 disk = sd->sd_disk; 1853 if (disk == NULL) 1854 continue; 1855 /* For RAID0+1 we need to translate order. */ 1856 pos = promise_meta_translate_disk(vol, i); 1857 pd = (struct g_raid_md_promise_perdisk *)disk->d_md_data; 1858 for (j = 0; j < pd->pd_subdisks; j++) { 1859 if (pd->pd_meta[j]->volume_id == meta->volume_id) 1860 break; 1861 } 1862 if (j == pd->pd_subdisks) 1863 pd->pd_subdisks++; 1864 if (pd->pd_meta[j] != NULL) 1865 free(pd->pd_meta[j], M_MD_PROMISE); 1866 pd->pd_meta[j] = promise_meta_copy(meta); 1867 pd->pd_meta[j]->disk = meta->disks[pos]; 1868 pd->pd_meta[j]->disk.number = pos; 1869 pd->pd_meta[j]->disk_offset_high = 1870 (sd->sd_offset / 512) >> 32; 1871 pd->pd_meta[j]->disk_offset = sd->sd_offset / 512; 1872 pd->pd_meta[j]->disk_sectors_high = 1873 (sd->sd_size / 512) >> 32; 1874 pd->pd_meta[j]->disk_sectors = sd->sd_size / 512; 1875 if (sd->sd_state == G_RAID_SUBDISK_S_REBUILD) { 1876 pd->pd_meta[j]->disk_rebuild_high = 1877 (sd->sd_rebuild_pos / 512) >> 32; 1878 pd->pd_meta[j]->disk_rebuild = 1879 sd->sd_rebuild_pos / 512; 1880 } else if (sd->sd_state < G_RAID_SUBDISK_S_REBUILD) { 1881 pd->pd_meta[j]->disk_rebuild_high = 0; 1882 pd->pd_meta[j]->disk_rebuild = 0; 1883 } else { 1884 pd->pd_meta[j]->disk_rebuild_high = UINT32_MAX; 1885 pd->pd_meta[j]->disk_rebuild = UINT32_MAX; 1886 } 1887 pd->pd_updated = 1; 1888 } 1889 } 1890 1891 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1892 pd = (struct g_raid_md_promise_perdisk *)disk->d_md_data; 1893 if (disk->d_state != G_RAID_DISK_S_ACTIVE) 1894 continue; 1895 if (!pd->pd_updated) 1896 continue; 1897 G_RAID_DEBUG(1, "Writing Promise metadata to %s", 1898 g_raid_get_diskname(disk)); 1899 for (i = 0; i < pd->pd_subdisks; i++) 1900 g_raid_md_promise_print(pd->pd_meta[i]); 1901 promise_meta_write(disk->d_consumer, 1902 pd->pd_meta, pd->pd_subdisks); 1903 pd->pd_updated = 0; 1904 } 1905 1906 return (0); 1907 } 1908 1909 static int 1910 g_raid_md_fail_disk_promise(struct g_raid_md_object *md, 1911 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1912 { 1913 struct g_raid_softc *sc; 1914 struct g_raid_md_promise_perdisk *pd; 1915 struct g_raid_subdisk *sd; 1916 int i, pos; 1917 1918 sc = md->mdo_softc; 1919 pd = (struct g_raid_md_promise_perdisk *)tdisk->d_md_data; 1920 1921 /* We can't fail disk that is not a part of array now. */ 1922 if (tdisk->d_state != G_RAID_DISK_S_ACTIVE) 1923 return (-1); 1924 1925 /* 1926 * Mark disk as failed in metadata and try to write that metadata 1927 * to the disk itself to prevent it's later resurrection as STALE. 1928 */ 1929 if (pd->pd_subdisks > 0 && tdisk->d_consumer != NULL) 1930 G_RAID_DEBUG(1, "Writing Promise metadata to %s", 1931 g_raid_get_diskname(tdisk)); 1932 for (i = 0; i < pd->pd_subdisks; i++) { 1933 pd->pd_meta[i]->disk.flags |= 1934 PROMISE_F_DOWN | PROMISE_F_REDIR; 1935 pos = pd->pd_meta[i]->disk.number; 1936 if (pos >= 0 && pos < PROMISE_MAX_DISKS) { 1937 pd->pd_meta[i]->disks[pos].flags |= 1938 PROMISE_F_DOWN | PROMISE_F_REDIR; 1939 } 1940 g_raid_md_promise_print(pd->pd_meta[i]); 1941 } 1942 if (tdisk->d_consumer != NULL) 1943 promise_meta_write(tdisk->d_consumer, 1944 pd->pd_meta, pd->pd_subdisks); 1945 1946 /* Change states. */ 1947 g_raid_change_disk_state(tdisk, G_RAID_DISK_S_FAILED); 1948 TAILQ_FOREACH(sd, &tdisk->d_subdisks, sd_next) { 1949 g_raid_change_subdisk_state(sd, 1950 G_RAID_SUBDISK_S_FAILED); 1951 g_raid_event_send(sd, G_RAID_SUBDISK_E_FAILED, 1952 G_RAID_EVENT_SUBDISK); 1953 } 1954 1955 /* Write updated metadata to remaining disks. */ 1956 g_raid_md_write_promise(md, NULL, NULL, tdisk); 1957 1958 g_raid_md_promise_refill(sc); 1959 return (0); 1960 } 1961 1962 static int 1963 g_raid_md_free_disk_promise(struct g_raid_md_object *md, 1964 struct g_raid_disk *disk) 1965 { 1966 struct g_raid_md_promise_perdisk *pd; 1967 int i; 1968 1969 pd = (struct g_raid_md_promise_perdisk *)disk->d_md_data; 1970 for (i = 0; i < pd->pd_subdisks; i++) { 1971 if (pd->pd_meta[i] != NULL) { 1972 free(pd->pd_meta[i], M_MD_PROMISE); 1973 pd->pd_meta[i] = NULL; 1974 } 1975 } 1976 free(pd, M_MD_PROMISE); 1977 disk->d_md_data = NULL; 1978 return (0); 1979 } 1980 1981 static int 1982 g_raid_md_free_volume_promise(struct g_raid_md_object *md, 1983 struct g_raid_volume *vol) 1984 { 1985 struct g_raid_md_promise_pervolume *pv; 1986 1987 pv = (struct g_raid_md_promise_pervolume *)vol->v_md_data; 1988 if (pv && pv->pv_meta != NULL) { 1989 free(pv->pv_meta, M_MD_PROMISE); 1990 pv->pv_meta = NULL; 1991 } 1992 if (pv && !pv->pv_started) { 1993 pv->pv_started = 1; 1994 callout_stop(&pv->pv_start_co); 1995 } 1996 free(pv, M_MD_PROMISE); 1997 vol->v_md_data = NULL; 1998 return (0); 1999 } 2000 2001 static int 2002 g_raid_md_free_promise(struct g_raid_md_object *md) 2003 { 2004 2005 return (0); 2006 } 2007 2008 G_RAID_MD_DECLARE(promise, "Promise"); 2009