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FreeBSD/Linux Kernel Cross Reference
sys/geom/raid/md_jmicron.c
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1 /*- 2 * Copyright (c) 2010 Alexander Motin <mav@FreeBSD.org> 3 * Copyright (c) 2000 - 2008 Søren Schmidt <sos@FreeBSD.org> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 __FBSDID("$FreeBSD$"); 30 31 #include <sys/param.h> 32 #include <sys/bio.h> 33 #include <sys/endian.h> 34 #include <sys/kernel.h> 35 #include <sys/kobj.h> 36 #include <sys/limits.h> 37 #include <sys/lock.h> 38 #include <sys/malloc.h> 39 #include <sys/mutex.h> 40 #include <sys/systm.h> 41 #include <sys/taskqueue.h> 42 #include <geom/geom.h> 43 #include "geom/raid/g_raid.h" 44 #include "g_raid_md_if.h" 45 46 static MALLOC_DEFINE(M_MD_JMICRON, "md_jmicron_data", "GEOM_RAID JMicron metadata"); 47 48 #define JMICRON_MAX_DISKS 8 49 #define JMICRON_MAX_SPARE 2 50 51 struct jmicron_raid_conf { 52 u_int8_t signature[2]; 53 #define JMICRON_MAGIC "JM" 54 55 u_int16_t version; 56 #define JMICRON_VERSION 0x0001 57 58 u_int16_t checksum; 59 u_int8_t filler_1[10]; 60 u_int32_t disk_id; 61 u_int32_t offset; 62 u_int32_t disk_sectors_high; 63 u_int16_t disk_sectors_low; 64 u_int8_t filler_2[2]; 65 u_int8_t name[16]; 66 u_int8_t type; 67 #define JMICRON_T_RAID0 0 68 #define JMICRON_T_RAID1 1 69 #define JMICRON_T_RAID01 2 70 #define JMICRON_T_CONCAT 3 71 #define JMICRON_T_RAID5 5 72 73 u_int8_t stripe_shift; 74 u_int16_t flags; 75 #define JMICRON_F_READY 0x0001 76 #define JMICRON_F_BOOTABLE 0x0002 77 #define JMICRON_F_BADSEC 0x0004 78 #define JMICRON_F_ACTIVE 0x0010 79 #define JMICRON_F_UNSYNC 0x0020 80 #define JMICRON_F_NEWEST 0x0040 81 82 u_int8_t filler_3[4]; 83 u_int32_t spare[JMICRON_MAX_SPARE]; 84 u_int32_t disks[JMICRON_MAX_DISKS]; 85 #define JMICRON_DISK_MASK 0xFFFFFFF0 86 #define JMICRON_SEG_MASK 0x0000000F 87 u_int8_t filler_4[32]; 88 u_int8_t filler_5[384]; 89 }; 90 91 struct g_raid_md_jmicron_perdisk { 92 struct jmicron_raid_conf *pd_meta; 93 int pd_disk_pos; 94 int pd_disk_id; 95 off_t pd_disk_size; 96 }; 97 98 struct g_raid_md_jmicron_object { 99 struct g_raid_md_object mdio_base; 100 uint32_t mdio_config_id; 101 struct jmicron_raid_conf *mdio_meta; 102 struct callout mdio_start_co; /* STARTING state timer. */ 103 int mdio_total_disks; 104 int mdio_disks_present; 105 int mdio_started; 106 int mdio_incomplete; 107 struct root_hold_token *mdio_rootmount; /* Root mount delay token. */ 108 }; 109 110 static g_raid_md_create_t g_raid_md_create_jmicron; 111 static g_raid_md_taste_t g_raid_md_taste_jmicron; 112 static g_raid_md_event_t g_raid_md_event_jmicron; 113 static g_raid_md_ctl_t g_raid_md_ctl_jmicron; 114 static g_raid_md_write_t g_raid_md_write_jmicron; 115 static g_raid_md_fail_disk_t g_raid_md_fail_disk_jmicron; 116 static g_raid_md_free_disk_t g_raid_md_free_disk_jmicron; 117 static g_raid_md_free_t g_raid_md_free_jmicron; 118 119 static kobj_method_t g_raid_md_jmicron_methods[] = { 120 KOBJMETHOD(g_raid_md_create, g_raid_md_create_jmicron), 121 KOBJMETHOD(g_raid_md_taste, g_raid_md_taste_jmicron), 122 KOBJMETHOD(g_raid_md_event, g_raid_md_event_jmicron), 123 KOBJMETHOD(g_raid_md_ctl, g_raid_md_ctl_jmicron), 124 KOBJMETHOD(g_raid_md_write, g_raid_md_write_jmicron), 125 KOBJMETHOD(g_raid_md_fail_disk, g_raid_md_fail_disk_jmicron), 126 KOBJMETHOD(g_raid_md_free_disk, g_raid_md_free_disk_jmicron), 127 KOBJMETHOD(g_raid_md_free, g_raid_md_free_jmicron), 128 { 0, 0 } 129 }; 130 131 static struct g_raid_md_class g_raid_md_jmicron_class = { 132 "JMicron", 133 g_raid_md_jmicron_methods, 134 sizeof(struct g_raid_md_jmicron_object), 135 .mdc_enable = 1, 136 .mdc_priority = 100 137 }; 138 139 static void 140 g_raid_md_jmicron_print(struct jmicron_raid_conf *meta) 141 { 142 int k; 143 144 if (g_raid_debug < 1) 145 return; 146 147 printf("********* ATA JMicron RAID Metadata *********\n"); 148 printf("signature <%c%c>\n", meta->signature[0], meta->signature[1]); 149 printf("version %04x\n", meta->version); 150 printf("checksum 0x%04x\n", meta->checksum); 151 printf("disk_id 0x%08x\n", meta->disk_id); 152 printf("offset 0x%08x\n", meta->offset); 153 printf("disk_sectors_high 0x%08x\n", meta->disk_sectors_high); 154 printf("disk_sectors_low 0x%04x\n", meta->disk_sectors_low); 155 printf("name <%.16s>\n", meta->name); 156 printf("type %d\n", meta->type); 157 printf("stripe_shift %d\n", meta->stripe_shift); 158 printf("flags %04x\n", meta->flags); 159 printf("spare "); 160 for (k = 0; k < JMICRON_MAX_SPARE; k++) 161 printf(" 0x%08x", meta->spare[k]); 162 printf("\n"); 163 printf("disks "); 164 for (k = 0; k < JMICRON_MAX_DISKS; k++) 165 printf(" 0x%08x", meta->disks[k]); 166 printf("\n"); 167 printf("=================================================\n"); 168 } 169 170 static struct jmicron_raid_conf * 171 jmicron_meta_copy(struct jmicron_raid_conf *meta) 172 { 173 struct jmicron_raid_conf *nmeta; 174 175 nmeta = malloc(sizeof(*meta), M_MD_JMICRON, M_WAITOK); 176 memcpy(nmeta, meta, sizeof(*meta)); 177 return (nmeta); 178 } 179 180 static int 181 jmicron_meta_total_disks(struct jmicron_raid_conf *meta) 182 { 183 int pos; 184 185 for (pos = 0; pos < JMICRON_MAX_DISKS; pos++) { 186 if (meta->disks[pos] == 0) 187 break; 188 } 189 return (pos); 190 } 191 192 static int 193 jmicron_meta_total_spare(struct jmicron_raid_conf *meta) 194 { 195 int pos, n; 196 197 n = 0; 198 for (pos = 0; pos < JMICRON_MAX_SPARE; pos++) { 199 if (meta->spare[pos] != 0) 200 n++; 201 } 202 return (n); 203 } 204 205 /* 206 * Generate fake Configuration ID based on disk IDs. 207 * Note: it will change after each disk set change. 208 */ 209 static uint32_t 210 jmicron_meta_config_id(struct jmicron_raid_conf *meta) 211 { 212 int pos; 213 uint32_t config_id; 214 215 config_id = 0; 216 for (pos = 0; pos < JMICRON_MAX_DISKS; pos++) 217 config_id += meta->disks[pos] << pos; 218 return (config_id); 219 } 220 221 static void 222 jmicron_meta_get_name(struct jmicron_raid_conf *meta, char *buf) 223 { 224 int i; 225 226 strncpy(buf, meta->name, 16); 227 buf[16] = 0; 228 for (i = 15; i >= 0; i--) { 229 if (buf[i] > 0x20) 230 break; 231 buf[i] = 0; 232 } 233 } 234 235 static void 236 jmicron_meta_put_name(struct jmicron_raid_conf *meta, char *buf) 237 { 238 239 memset(meta->name, 0x20, 16); 240 memcpy(meta->name, buf, MIN(strlen(buf), 16)); 241 } 242 243 static int 244 jmicron_meta_find_disk(struct jmicron_raid_conf *meta, uint32_t id) 245 { 246 int pos; 247 248 id &= JMICRON_DISK_MASK; 249 for (pos = 0; pos < JMICRON_MAX_DISKS; pos++) { 250 if ((meta->disks[pos] & JMICRON_DISK_MASK) == id) 251 return (pos); 252 } 253 for (pos = 0; pos < JMICRON_MAX_SPARE; pos++) { 254 if ((meta->spare[pos] & JMICRON_DISK_MASK) == id) 255 return (-3); 256 } 257 return (-1); 258 } 259 260 static struct jmicron_raid_conf * 261 jmicron_meta_read(struct g_consumer *cp) 262 { 263 struct g_provider *pp; 264 struct jmicron_raid_conf *meta; 265 char *buf; 266 int error, i; 267 uint16_t checksum, *ptr; 268 269 pp = cp->provider; 270 271 /* Read the anchor sector. */ 272 buf = g_read_data(cp, 273 pp->mediasize - pp->sectorsize, pp->sectorsize, &error); 274 if (buf == NULL) { 275 G_RAID_DEBUG(1, "Cannot read metadata from %s (error=%d).", 276 pp->name, error); 277 return (NULL); 278 } 279 meta = (struct jmicron_raid_conf *)buf; 280 281 /* Check if this is an JMicron RAID struct */ 282 if (strncmp(meta->signature, JMICRON_MAGIC, strlen(JMICRON_MAGIC))) { 283 G_RAID_DEBUG(1, "JMicron signature check failed on %s", pp->name); 284 g_free(buf); 285 return (NULL); 286 } 287 meta = malloc(sizeof(*meta), M_MD_JMICRON, M_WAITOK); 288 memcpy(meta, buf, min(sizeof(*meta), pp->sectorsize)); 289 g_free(buf); 290 291 /* Check metadata checksum. */ 292 for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i < 64; i++) 293 checksum += *ptr++; 294 if (checksum != 0) { 295 G_RAID_DEBUG(1, "JMicron checksum check failed on %s", pp->name); 296 free(meta, M_MD_JMICRON); 297 return (NULL); 298 } 299 300 return (meta); 301 } 302 303 static int 304 jmicron_meta_write(struct g_consumer *cp, struct jmicron_raid_conf *meta) 305 { 306 struct g_provider *pp; 307 char *buf; 308 int error, i; 309 uint16_t checksum, *ptr; 310 311 pp = cp->provider; 312 313 /* Recalculate checksum for case if metadata were changed. */ 314 meta->checksum = 0; 315 for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i < 64; i++) 316 checksum += *ptr++; 317 meta->checksum -= checksum; 318 319 /* Create and fill buffer. */ 320 buf = malloc(pp->sectorsize, M_MD_JMICRON, M_WAITOK | M_ZERO); 321 memcpy(buf, meta, sizeof(*meta)); 322 323 error = g_write_data(cp, 324 pp->mediasize - pp->sectorsize, buf, pp->sectorsize); 325 if (error != 0) { 326 G_RAID_DEBUG(1, "Cannot write metadata to %s (error=%d).", 327 pp->name, error); 328 } 329 330 free(buf, M_MD_JMICRON); 331 return (error); 332 } 333 334 static int 335 jmicron_meta_erase(struct g_consumer *cp) 336 { 337 struct g_provider *pp; 338 char *buf; 339 int error; 340 341 pp = cp->provider; 342 buf = malloc(pp->sectorsize, M_MD_JMICRON, M_WAITOK | M_ZERO); 343 error = g_write_data(cp, 344 pp->mediasize - pp->sectorsize, buf, pp->sectorsize); 345 if (error != 0) { 346 G_RAID_DEBUG(1, "Cannot erase metadata on %s (error=%d).", 347 pp->name, error); 348 } 349 free(buf, M_MD_JMICRON); 350 return (error); 351 } 352 353 static struct g_raid_disk * 354 g_raid_md_jmicron_get_disk(struct g_raid_softc *sc, int id) 355 { 356 struct g_raid_disk *disk; 357 struct g_raid_md_jmicron_perdisk *pd; 358 359 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 360 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 361 if (pd->pd_disk_pos == id) 362 break; 363 } 364 return (disk); 365 } 366 367 static int 368 g_raid_md_jmicron_supported(int level, int qual, int disks, int force) 369 { 370 371 if (disks > 8) 372 return (0); 373 switch (level) { 374 case G_RAID_VOLUME_RL_RAID0: 375 if (disks < 1) 376 return (0); 377 if (!force && (disks < 2 || disks > 6)) 378 return (0); 379 break; 380 case G_RAID_VOLUME_RL_RAID1: 381 if (disks < 1) 382 return (0); 383 if (!force && (disks != 2)) 384 return (0); 385 break; 386 case G_RAID_VOLUME_RL_RAID1E: 387 if (disks < 2) 388 return (0); 389 if (!force && (disks != 4)) 390 return (0); 391 break; 392 case G_RAID_VOLUME_RL_SINGLE: 393 if (disks != 1) 394 return (0); 395 if (!force) 396 return (0); 397 break; 398 case G_RAID_VOLUME_RL_CONCAT: 399 if (disks < 2) 400 return (0); 401 break; 402 case G_RAID_VOLUME_RL_RAID5: 403 if (disks < 3) 404 return (0); 405 if (qual != G_RAID_VOLUME_RLQ_R5LA) 406 return (0); 407 if (!force) 408 return (0); 409 break; 410 default: 411 return (0); 412 } 413 if (level != G_RAID_VOLUME_RL_RAID5 && qual != G_RAID_VOLUME_RLQ_NONE) 414 return (0); 415 return (1); 416 } 417 418 static int 419 g_raid_md_jmicron_start_disk(struct g_raid_disk *disk) 420 { 421 struct g_raid_softc *sc; 422 struct g_raid_subdisk *sd, *tmpsd; 423 struct g_raid_disk *olddisk, *tmpdisk; 424 struct g_raid_md_object *md; 425 struct g_raid_md_jmicron_object *mdi; 426 struct g_raid_md_jmicron_perdisk *pd, *oldpd; 427 struct jmicron_raid_conf *meta; 428 int disk_pos, resurrection = 0; 429 430 sc = disk->d_softc; 431 md = sc->sc_md; 432 mdi = (struct g_raid_md_jmicron_object *)md; 433 meta = mdi->mdio_meta; 434 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 435 olddisk = NULL; 436 437 /* Find disk position in metadata by it's serial. */ 438 if (pd->pd_meta != NULL) 439 disk_pos = jmicron_meta_find_disk(meta, pd->pd_disk_id); 440 else 441 disk_pos = -1; 442 if (disk_pos < 0) { 443 G_RAID_DEBUG1(1, sc, "Unknown, probably new or stale disk"); 444 /* If we are in the start process, that's all for now. */ 445 if (!mdi->mdio_started) 446 goto nofit; 447 /* 448 * If we have already started - try to get use of the disk. 449 * Try to replace OFFLINE disks first, then FAILED. 450 */ 451 TAILQ_FOREACH(tmpdisk, &sc->sc_disks, d_next) { 452 if (tmpdisk->d_state != G_RAID_DISK_S_OFFLINE && 453 tmpdisk->d_state != G_RAID_DISK_S_FAILED) 454 continue; 455 /* Make sure this disk is big enough. */ 456 TAILQ_FOREACH(sd, &tmpdisk->d_subdisks, sd_next) { 457 if (sd->sd_offset + sd->sd_size + 512 > 458 pd->pd_disk_size) { 459 G_RAID_DEBUG1(1, sc, 460 "Disk too small (%ju < %ju)", 461 pd->pd_disk_size, 462 sd->sd_offset + sd->sd_size + 512); 463 break; 464 } 465 } 466 if (sd != NULL) 467 continue; 468 if (tmpdisk->d_state == G_RAID_DISK_S_OFFLINE) { 469 olddisk = tmpdisk; 470 break; 471 } else if (olddisk == NULL) 472 olddisk = tmpdisk; 473 } 474 if (olddisk == NULL) { 475 nofit: 476 if (disk_pos == -3 || pd->pd_disk_pos == -3) { 477 g_raid_change_disk_state(disk, 478 G_RAID_DISK_S_SPARE); 479 return (1); 480 } else { 481 g_raid_change_disk_state(disk, 482 G_RAID_DISK_S_STALE); 483 return (0); 484 } 485 } 486 oldpd = (struct g_raid_md_jmicron_perdisk *)olddisk->d_md_data; 487 disk_pos = oldpd->pd_disk_pos; 488 resurrection = 1; 489 } 490 491 if (olddisk == NULL) { 492 /* Find placeholder by position. */ 493 olddisk = g_raid_md_jmicron_get_disk(sc, disk_pos); 494 if (olddisk == NULL) 495 panic("No disk at position %d!", disk_pos); 496 if (olddisk->d_state != G_RAID_DISK_S_OFFLINE) { 497 G_RAID_DEBUG1(1, sc, "More than one disk for pos %d", 498 disk_pos); 499 g_raid_change_disk_state(disk, G_RAID_DISK_S_STALE); 500 return (0); 501 } 502 oldpd = (struct g_raid_md_jmicron_perdisk *)olddisk->d_md_data; 503 } 504 505 /* Replace failed disk or placeholder with new disk. */ 506 TAILQ_FOREACH_SAFE(sd, &olddisk->d_subdisks, sd_next, tmpsd) { 507 TAILQ_REMOVE(&olddisk->d_subdisks, sd, sd_next); 508 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 509 sd->sd_disk = disk; 510 } 511 oldpd->pd_disk_pos = -2; 512 pd->pd_disk_pos = disk_pos; 513 /* Update global metadata just in case. */ 514 meta->disks[disk_pos] = pd->pd_disk_id; 515 516 /* If it was placeholder -- destroy it. */ 517 if (olddisk->d_state == G_RAID_DISK_S_OFFLINE) { 518 g_raid_destroy_disk(olddisk); 519 } else { 520 /* Otherwise, make it STALE_FAILED. */ 521 g_raid_change_disk_state(olddisk, G_RAID_DISK_S_STALE_FAILED); 522 } 523 524 /* Welcome the new disk. */ 525 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE); 526 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 527 528 /* 529 * Different disks may have different sizes/offsets, 530 * especially in concat mode. Update. 531 */ 532 if (!resurrection) { 533 sd->sd_offset = 534 (off_t)pd->pd_meta->offset * 16 * 512; //ZZZ 535 sd->sd_size = 536 (((off_t)pd->pd_meta->disk_sectors_high << 16) + 537 pd->pd_meta->disk_sectors_low) * 512; 538 } 539 540 if (resurrection) { 541 /* Stale disk, almost same as new. */ 542 g_raid_change_subdisk_state(sd, 543 G_RAID_SUBDISK_S_NEW); 544 } else if ((meta->flags & JMICRON_F_BADSEC) != 0 && 545 (pd->pd_meta->flags & JMICRON_F_BADSEC) == 0) { 546 /* Cold-inserted or rebuilding disk. */ 547 g_raid_change_subdisk_state(sd, 548 G_RAID_SUBDISK_S_NEW); 549 } else if (pd->pd_meta->flags & JMICRON_F_UNSYNC) { 550 /* Dirty or resyncing disk.. */ 551 g_raid_change_subdisk_state(sd, 552 G_RAID_SUBDISK_S_STALE); 553 } else { 554 /* Up to date disk. */ 555 g_raid_change_subdisk_state(sd, 556 G_RAID_SUBDISK_S_ACTIVE); 557 } 558 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 559 G_RAID_EVENT_SUBDISK); 560 } 561 562 /* Update status of our need for spare. */ 563 if (mdi->mdio_started) { 564 mdi->mdio_incomplete = 565 (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < 566 mdi->mdio_total_disks); 567 } 568 569 return (resurrection); 570 } 571 572 static void 573 g_disk_md_jmicron_retaste(void *arg, int pending) 574 { 575 576 G_RAID_DEBUG(1, "Array is not complete, trying to retaste."); 577 g_retaste(&g_raid_class); 578 free(arg, M_MD_JMICRON); 579 } 580 581 static void 582 g_raid_md_jmicron_refill(struct g_raid_softc *sc) 583 { 584 struct g_raid_md_object *md; 585 struct g_raid_md_jmicron_object *mdi; 586 struct g_raid_disk *disk; 587 struct task *task; 588 int update, na; 589 590 md = sc->sc_md; 591 mdi = (struct g_raid_md_jmicron_object *)md; 592 update = 0; 593 do { 594 /* Make sure we miss anything. */ 595 na = g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE); 596 if (na == mdi->mdio_total_disks) 597 break; 598 599 G_RAID_DEBUG1(1, md->mdo_softc, 600 "Array is not complete (%d of %d), " 601 "trying to refill.", na, mdi->mdio_total_disks); 602 603 /* Try to get use some of STALE disks. */ 604 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 605 if (disk->d_state == G_RAID_DISK_S_STALE) { 606 update += g_raid_md_jmicron_start_disk(disk); 607 if (disk->d_state == G_RAID_DISK_S_ACTIVE) 608 break; 609 } 610 } 611 if (disk != NULL) 612 continue; 613 614 /* Try to get use some of SPARE disks. */ 615 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 616 if (disk->d_state == G_RAID_DISK_S_SPARE) { 617 update += g_raid_md_jmicron_start_disk(disk); 618 if (disk->d_state == G_RAID_DISK_S_ACTIVE) 619 break; 620 } 621 } 622 } while (disk != NULL); 623 624 /* Write new metadata if we changed something. */ 625 if (update) 626 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 627 628 /* Update status of our need for spare. */ 629 mdi->mdio_incomplete = (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < 630 mdi->mdio_total_disks); 631 632 /* Request retaste hoping to find spare. */ 633 if (mdi->mdio_incomplete) { 634 task = malloc(sizeof(struct task), 635 M_MD_JMICRON, M_WAITOK | M_ZERO); 636 TASK_INIT(task, 0, g_disk_md_jmicron_retaste, task); 637 taskqueue_enqueue(taskqueue_swi, task); 638 } 639 } 640 641 static void 642 g_raid_md_jmicron_start(struct g_raid_softc *sc) 643 { 644 struct g_raid_md_object *md; 645 struct g_raid_md_jmicron_object *mdi; 646 struct g_raid_md_jmicron_perdisk *pd; 647 struct jmicron_raid_conf *meta; 648 struct g_raid_volume *vol; 649 struct g_raid_subdisk *sd; 650 struct g_raid_disk *disk; 651 off_t size; 652 int j, disk_pos; 653 char buf[17]; 654 655 md = sc->sc_md; 656 mdi = (struct g_raid_md_jmicron_object *)md; 657 meta = mdi->mdio_meta; 658 659 /* Create volumes and subdisks. */ 660 jmicron_meta_get_name(meta, buf); 661 vol = g_raid_create_volume(sc, buf, -1); 662 size = ((off_t)meta->disk_sectors_high << 16) + meta->disk_sectors_low; 663 size *= 512; //ZZZ 664 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_NONE; 665 if (meta->type == JMICRON_T_RAID0) { 666 vol->v_raid_level = G_RAID_VOLUME_RL_RAID0; 667 vol->v_mediasize = size * mdi->mdio_total_disks; 668 } else if (meta->type == JMICRON_T_RAID1) { 669 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1; 670 vol->v_mediasize = size; 671 } else if (meta->type == JMICRON_T_RAID01) { 672 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1E; 673 vol->v_mediasize = size * mdi->mdio_total_disks / 2; 674 } else if (meta->type == JMICRON_T_CONCAT) { 675 if (mdi->mdio_total_disks == 1) 676 vol->v_raid_level = G_RAID_VOLUME_RL_SINGLE; 677 else 678 vol->v_raid_level = G_RAID_VOLUME_RL_CONCAT; 679 vol->v_mediasize = 0; 680 } else if (meta->type == JMICRON_T_RAID5) { 681 vol->v_raid_level = G_RAID_VOLUME_RL_RAID5; 682 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_R5LA; 683 vol->v_mediasize = size * (mdi->mdio_total_disks - 1); 684 } else { 685 vol->v_raid_level = G_RAID_VOLUME_RL_UNKNOWN; 686 vol->v_mediasize = 0; 687 } 688 vol->v_strip_size = 1024 << meta->stripe_shift; //ZZZ 689 vol->v_disks_count = mdi->mdio_total_disks; 690 vol->v_sectorsize = 512; //ZZZ 691 for (j = 0; j < vol->v_disks_count; j++) { 692 sd = &vol->v_subdisks[j]; 693 sd->sd_offset = (off_t)meta->offset * 16 * 512; //ZZZ 694 sd->sd_size = size; 695 } 696 g_raid_start_volume(vol); 697 698 /* Create disk placeholders to store data for later writing. */ 699 for (disk_pos = 0; disk_pos < mdi->mdio_total_disks; disk_pos++) { 700 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 701 pd->pd_disk_pos = disk_pos; 702 pd->pd_disk_id = meta->disks[disk_pos]; 703 disk = g_raid_create_disk(sc); 704 disk->d_md_data = (void *)pd; 705 disk->d_state = G_RAID_DISK_S_OFFLINE; 706 sd = &vol->v_subdisks[disk_pos]; 707 sd->sd_disk = disk; 708 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 709 } 710 711 /* Make all disks found till the moment take their places. */ 712 do { 713 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 714 if (disk->d_state == G_RAID_DISK_S_NONE) { 715 g_raid_md_jmicron_start_disk(disk); 716 break; 717 } 718 } 719 } while (disk != NULL); 720 721 mdi->mdio_started = 1; 722 G_RAID_DEBUG1(0, sc, "Array started."); 723 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 724 725 /* Pickup any STALE/SPARE disks to refill array if needed. */ 726 g_raid_md_jmicron_refill(sc); 727 728 g_raid_event_send(vol, G_RAID_VOLUME_E_START, G_RAID_EVENT_VOLUME); 729 730 callout_stop(&mdi->mdio_start_co); 731 G_RAID_DEBUG1(1, sc, "root_mount_rel %p", mdi->mdio_rootmount); 732 root_mount_rel(mdi->mdio_rootmount); 733 mdi->mdio_rootmount = NULL; 734 } 735 736 static void 737 g_raid_md_jmicron_new_disk(struct g_raid_disk *disk) 738 { 739 struct g_raid_softc *sc; 740 struct g_raid_md_object *md; 741 struct g_raid_md_jmicron_object *mdi; 742 struct jmicron_raid_conf *pdmeta; 743 struct g_raid_md_jmicron_perdisk *pd; 744 745 sc = disk->d_softc; 746 md = sc->sc_md; 747 mdi = (struct g_raid_md_jmicron_object *)md; 748 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 749 pdmeta = pd->pd_meta; 750 751 if (mdi->mdio_started) { 752 if (g_raid_md_jmicron_start_disk(disk)) 753 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 754 } else { 755 /* 756 * If we haven't started yet - update common metadata 757 * to get subdisks details, avoiding data from spare disks. 758 */ 759 if (mdi->mdio_meta == NULL || 760 jmicron_meta_find_disk(mdi->mdio_meta, 761 mdi->mdio_meta->disk_id) == -3) { 762 if (mdi->mdio_meta != NULL) 763 free(mdi->mdio_meta, M_MD_JMICRON); 764 mdi->mdio_meta = jmicron_meta_copy(pdmeta); 765 mdi->mdio_total_disks = jmicron_meta_total_disks(pdmeta); 766 } 767 mdi->mdio_meta->flags |= pdmeta->flags & JMICRON_F_BADSEC; 768 769 mdi->mdio_disks_present++; 770 G_RAID_DEBUG1(1, sc, "Matching disk (%d of %d+%d up)", 771 mdi->mdio_disks_present, 772 mdi->mdio_total_disks, 773 jmicron_meta_total_spare(mdi->mdio_meta)); 774 775 /* If we collected all needed disks - start array. */ 776 if (mdi->mdio_disks_present == mdi->mdio_total_disks + 777 jmicron_meta_total_spare(mdi->mdio_meta)) 778 g_raid_md_jmicron_start(sc); 779 } 780 } 781 782 static void 783 g_raid_jmicron_go(void *arg) 784 { 785 struct g_raid_softc *sc; 786 struct g_raid_md_object *md; 787 struct g_raid_md_jmicron_object *mdi; 788 789 sc = arg; 790 md = sc->sc_md; 791 mdi = (struct g_raid_md_jmicron_object *)md; 792 if (!mdi->mdio_started) { 793 G_RAID_DEBUG1(0, sc, "Force array start due to timeout."); 794 g_raid_event_send(sc, G_RAID_NODE_E_START, 0); 795 } 796 } 797 798 static int 799 g_raid_md_create_jmicron(struct g_raid_md_object *md, struct g_class *mp, 800 struct g_geom **gp) 801 { 802 struct g_raid_softc *sc; 803 struct g_raid_md_jmicron_object *mdi; 804 char name[16]; 805 806 mdi = (struct g_raid_md_jmicron_object *)md; 807 mdi->mdio_config_id = arc4random(); 808 snprintf(name, sizeof(name), "JMicron-%08x", mdi->mdio_config_id); 809 sc = g_raid_create_node(mp, name, md); 810 if (sc == NULL) 811 return (G_RAID_MD_TASTE_FAIL); 812 md->mdo_softc = sc; 813 *gp = sc->sc_geom; 814 return (G_RAID_MD_TASTE_NEW); 815 } 816 817 static int 818 g_raid_md_taste_jmicron(struct g_raid_md_object *md, struct g_class *mp, 819 struct g_consumer *cp, struct g_geom **gp) 820 { 821 struct g_consumer *rcp; 822 struct g_provider *pp; 823 struct g_raid_md_jmicron_object *mdi, *mdi1; 824 struct g_raid_softc *sc; 825 struct g_raid_disk *disk; 826 struct jmicron_raid_conf *meta; 827 struct g_raid_md_jmicron_perdisk *pd; 828 struct g_geom *geom; 829 int disk_pos, result, spare, len; 830 char name[16]; 831 uint16_t vendor; 832 833 G_RAID_DEBUG(1, "Tasting JMicron on %s", cp->provider->name); 834 mdi = (struct g_raid_md_jmicron_object *)md; 835 pp = cp->provider; 836 837 /* Read metadata from device. */ 838 meta = NULL; 839 g_topology_unlock(); 840 vendor = 0xffff; 841 len = sizeof(vendor); 842 if (pp->geom->rank == 1) 843 g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor); 844 meta = jmicron_meta_read(cp); 845 g_topology_lock(); 846 if (meta == NULL) { 847 if (g_raid_aggressive_spare) { 848 if (vendor == 0x197b) { 849 G_RAID_DEBUG(1, 850 "No JMicron metadata, forcing spare."); 851 spare = 2; 852 goto search; 853 } else { 854 G_RAID_DEBUG(1, 855 "JMicron vendor mismatch 0x%04x != 0x197b", 856 vendor); 857 } 858 } 859 return (G_RAID_MD_TASTE_FAIL); 860 } 861 862 /* Check this disk position in obtained metadata. */ 863 disk_pos = jmicron_meta_find_disk(meta, meta->disk_id); 864 if (disk_pos == -1) { 865 G_RAID_DEBUG(1, "JMicron disk_id %08x not found", 866 meta->disk_id); 867 goto fail1; 868 } 869 870 /* Metadata valid. Print it. */ 871 g_raid_md_jmicron_print(meta); 872 G_RAID_DEBUG(1, "JMicron disk position %d", disk_pos); 873 spare = (disk_pos == -2) ? 1 : 0; 874 875 search: 876 /* Search for matching node. */ 877 sc = NULL; 878 mdi1 = NULL; 879 LIST_FOREACH(geom, &mp->geom, geom) { 880 sc = geom->softc; 881 if (sc == NULL) 882 continue; 883 if (sc->sc_stopping != 0) 884 continue; 885 if (sc->sc_md->mdo_class != md->mdo_class) 886 continue; 887 mdi1 = (struct g_raid_md_jmicron_object *)sc->sc_md; 888 if (spare == 2) { 889 if (mdi1->mdio_incomplete) 890 break; 891 } else { 892 if (mdi1->mdio_config_id == 893 jmicron_meta_config_id(meta)) 894 break; 895 } 896 } 897 898 /* Found matching node. */ 899 if (geom != NULL) { 900 G_RAID_DEBUG(1, "Found matching array %s", sc->sc_name); 901 result = G_RAID_MD_TASTE_EXISTING; 902 903 } else if (spare) { /* Not found needy node -- left for later. */ 904 G_RAID_DEBUG(1, "Spare is not needed at this time"); 905 goto fail1; 906 907 } else { /* Not found matching node -- create one. */ 908 result = G_RAID_MD_TASTE_NEW; 909 mdi->mdio_config_id = jmicron_meta_config_id(meta); 910 snprintf(name, sizeof(name), "JMicron-%08x", 911 mdi->mdio_config_id); 912 sc = g_raid_create_node(mp, name, md); 913 md->mdo_softc = sc; 914 geom = sc->sc_geom; 915 callout_init(&mdi->mdio_start_co, 1); 916 callout_reset(&mdi->mdio_start_co, g_raid_start_timeout * hz, 917 g_raid_jmicron_go, sc); 918 mdi->mdio_rootmount = root_mount_hold("GRAID-JMicron"); 919 G_RAID_DEBUG1(1, sc, "root_mount_hold %p", mdi->mdio_rootmount); 920 } 921 922 /* There is no return after this point, so we close passed consumer. */ 923 g_access(cp, -1, 0, 0); 924 925 rcp = g_new_consumer(geom); 926 rcp->flags |= G_CF_DIRECT_RECEIVE; 927 g_attach(rcp, pp); 928 if (g_access(rcp, 1, 1, 1) != 0) 929 ; //goto fail1; 930 931 g_topology_unlock(); 932 sx_xlock(&sc->sc_lock); 933 934 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 935 pd->pd_meta = meta; 936 if (spare == 2) { 937 pd->pd_disk_pos = -3; 938 pd->pd_disk_id = arc4random() & JMICRON_DISK_MASK; 939 } else { 940 pd->pd_disk_pos = -1; 941 pd->pd_disk_id = meta->disk_id; 942 } 943 pd->pd_disk_size = pp->mediasize; 944 disk = g_raid_create_disk(sc); 945 disk->d_md_data = (void *)pd; 946 disk->d_consumer = rcp; 947 rcp->private = disk; 948 949 g_raid_get_disk_info(disk); 950 951 g_raid_md_jmicron_new_disk(disk); 952 953 sx_xunlock(&sc->sc_lock); 954 g_topology_lock(); 955 *gp = geom; 956 return (result); 957 fail1: 958 free(meta, M_MD_JMICRON); 959 return (G_RAID_MD_TASTE_FAIL); 960 } 961 962 static int 963 g_raid_md_event_jmicron(struct g_raid_md_object *md, 964 struct g_raid_disk *disk, u_int event) 965 { 966 struct g_raid_softc *sc; 967 struct g_raid_subdisk *sd; 968 struct g_raid_md_jmicron_object *mdi; 969 struct g_raid_md_jmicron_perdisk *pd; 970 971 sc = md->mdo_softc; 972 mdi = (struct g_raid_md_jmicron_object *)md; 973 if (disk == NULL) { 974 switch (event) { 975 case G_RAID_NODE_E_START: 976 if (!mdi->mdio_started) 977 g_raid_md_jmicron_start(sc); 978 return (0); 979 } 980 return (-1); 981 } 982 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 983 switch (event) { 984 case G_RAID_DISK_E_DISCONNECTED: 985 /* If disk was assigned, just update statuses. */ 986 if (pd->pd_disk_pos >= 0) { 987 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 988 if (disk->d_consumer) { 989 g_raid_kill_consumer(sc, disk->d_consumer); 990 disk->d_consumer = NULL; 991 } 992 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 993 g_raid_change_subdisk_state(sd, 994 G_RAID_SUBDISK_S_NONE); 995 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED, 996 G_RAID_EVENT_SUBDISK); 997 } 998 } else { 999 /* Otherwise -- delete. */ 1000 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 1001 g_raid_destroy_disk(disk); 1002 } 1003 1004 /* Write updated metadata to all disks. */ 1005 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1006 1007 /* Check if anything left except placeholders. */ 1008 if (g_raid_ndisks(sc, -1) == 1009 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1010 g_raid_destroy_node(sc, 0); 1011 else 1012 g_raid_md_jmicron_refill(sc); 1013 return (0); 1014 } 1015 return (-2); 1016 } 1017 1018 static int 1019 g_raid_md_ctl_jmicron(struct g_raid_md_object *md, 1020 struct gctl_req *req) 1021 { 1022 struct g_raid_softc *sc; 1023 struct g_raid_volume *vol; 1024 struct g_raid_subdisk *sd; 1025 struct g_raid_disk *disk; 1026 struct g_raid_md_jmicron_object *mdi; 1027 struct g_raid_md_jmicron_perdisk *pd; 1028 struct g_consumer *cp; 1029 struct g_provider *pp; 1030 char arg[16]; 1031 const char *verb, *volname, *levelname, *diskname; 1032 int *nargs, *force; 1033 off_t size, sectorsize, strip; 1034 intmax_t *sizearg, *striparg; 1035 int numdisks, i, len, level, qual, update; 1036 int error; 1037 1038 sc = md->mdo_softc; 1039 mdi = (struct g_raid_md_jmicron_object *)md; 1040 verb = gctl_get_param(req, "verb", NULL); 1041 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 1042 error = 0; 1043 if (strcmp(verb, "label") == 0) { 1044 1045 if (*nargs < 4) { 1046 gctl_error(req, "Invalid number of arguments."); 1047 return (-1); 1048 } 1049 volname = gctl_get_asciiparam(req, "arg1"); 1050 if (volname == NULL) { 1051 gctl_error(req, "No volume name."); 1052 return (-2); 1053 } 1054 levelname = gctl_get_asciiparam(req, "arg2"); 1055 if (levelname == NULL) { 1056 gctl_error(req, "No RAID level."); 1057 return (-3); 1058 } 1059 if (strcasecmp(levelname, "RAID5") == 0) 1060 levelname = "RAID5-LA"; 1061 if (g_raid_volume_str2level(levelname, &level, &qual)) { 1062 gctl_error(req, "Unknown RAID level '%s'.", levelname); 1063 return (-4); 1064 } 1065 numdisks = *nargs - 3; 1066 force = gctl_get_paraml(req, "force", sizeof(*force)); 1067 if (!g_raid_md_jmicron_supported(level, qual, numdisks, 1068 force ? *force : 0)) { 1069 gctl_error(req, "Unsupported RAID level " 1070 "(0x%02x/0x%02x), or number of disks (%d).", 1071 level, qual, numdisks); 1072 return (-5); 1073 } 1074 1075 /* Search for disks, connect them and probe. */ 1076 size = 0x7fffffffffffffffllu; 1077 sectorsize = 0; 1078 for (i = 0; i < numdisks; i++) { 1079 snprintf(arg, sizeof(arg), "arg%d", i + 3); 1080 diskname = gctl_get_asciiparam(req, arg); 1081 if (diskname == NULL) { 1082 gctl_error(req, "No disk name (%s).", arg); 1083 error = -6; 1084 break; 1085 } 1086 if (strcmp(diskname, "NONE") == 0) { 1087 cp = NULL; 1088 pp = NULL; 1089 } else { 1090 g_topology_lock(); 1091 cp = g_raid_open_consumer(sc, diskname); 1092 if (cp == NULL) { 1093 gctl_error(req, "Can't open '%s'.", 1094 diskname); 1095 g_topology_unlock(); 1096 error = -7; 1097 break; 1098 } 1099 pp = cp->provider; 1100 } 1101 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 1102 pd->pd_disk_pos = i; 1103 pd->pd_disk_id = arc4random() & JMICRON_DISK_MASK; 1104 disk = g_raid_create_disk(sc); 1105 disk->d_md_data = (void *)pd; 1106 disk->d_consumer = cp; 1107 if (cp == NULL) 1108 continue; 1109 cp->private = disk; 1110 g_topology_unlock(); 1111 1112 g_raid_get_disk_info(disk); 1113 1114 pd->pd_disk_size = pp->mediasize; 1115 if (size > pp->mediasize) 1116 size = pp->mediasize; 1117 if (sectorsize < pp->sectorsize) 1118 sectorsize = pp->sectorsize; 1119 } 1120 if (error != 0) 1121 return (error); 1122 1123 if (sectorsize <= 0) { 1124 gctl_error(req, "Can't get sector size."); 1125 return (-8); 1126 } 1127 1128 /* Reserve space for metadata. */ 1129 size -= sectorsize; 1130 1131 /* Handle size argument. */ 1132 len = sizeof(*sizearg); 1133 sizearg = gctl_get_param(req, "size", &len); 1134 if (sizearg != NULL && len == sizeof(*sizearg) && 1135 *sizearg > 0) { 1136 if (*sizearg > size) { 1137 gctl_error(req, "Size too big %lld > %lld.", 1138 (long long)*sizearg, (long long)size); 1139 return (-9); 1140 } 1141 size = *sizearg; 1142 } 1143 1144 /* Handle strip argument. */ 1145 strip = 131072; 1146 len = sizeof(*striparg); 1147 striparg = gctl_get_param(req, "strip", &len); 1148 if (striparg != NULL && len == sizeof(*striparg) && 1149 *striparg > 0) { 1150 if (*striparg < sectorsize) { 1151 gctl_error(req, "Strip size too small."); 1152 return (-10); 1153 } 1154 if (*striparg % sectorsize != 0) { 1155 gctl_error(req, "Incorrect strip size."); 1156 return (-11); 1157 } 1158 if (strip > 65535 * sectorsize) { 1159 gctl_error(req, "Strip size too big."); 1160 return (-12); 1161 } 1162 strip = *striparg; 1163 } 1164 1165 /* Round size down to strip or sector. */ 1166 if (level == G_RAID_VOLUME_RL_RAID1) 1167 size -= (size % sectorsize); 1168 else if (level == G_RAID_VOLUME_RL_RAID1E && 1169 (numdisks & 1) != 0) 1170 size -= (size % (2 * strip)); 1171 else 1172 size -= (size % strip); 1173 if (size <= 0) { 1174 gctl_error(req, "Size too small."); 1175 return (-13); 1176 } 1177 if (size > 0xffffffffffffllu * sectorsize) { 1178 gctl_error(req, "Size too big."); 1179 return (-14); 1180 } 1181 1182 /* We have all we need, create things: volume, ... */ 1183 mdi->mdio_total_disks = numdisks; 1184 mdi->mdio_started = 1; 1185 vol = g_raid_create_volume(sc, volname, -1); 1186 vol->v_md_data = (void *)(intptr_t)0; 1187 vol->v_raid_level = level; 1188 vol->v_raid_level_qualifier = qual; 1189 vol->v_strip_size = strip; 1190 vol->v_disks_count = numdisks; 1191 if (level == G_RAID_VOLUME_RL_RAID0 || 1192 level == G_RAID_VOLUME_RL_CONCAT || 1193 level == G_RAID_VOLUME_RL_SINGLE) 1194 vol->v_mediasize = size * numdisks; 1195 else if (level == G_RAID_VOLUME_RL_RAID1) 1196 vol->v_mediasize = size; 1197 else if (level == G_RAID_VOLUME_RL_RAID5) 1198 vol->v_mediasize = size * (numdisks - 1); 1199 else { /* RAID1E */ 1200 vol->v_mediasize = ((size * numdisks) / strip / 2) * 1201 strip; 1202 } 1203 vol->v_sectorsize = sectorsize; 1204 g_raid_start_volume(vol); 1205 1206 /* , and subdisks. */ 1207 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1208 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1209 sd = &vol->v_subdisks[pd->pd_disk_pos]; 1210 sd->sd_disk = disk; 1211 sd->sd_offset = 0; 1212 sd->sd_size = size; 1213 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 1214 if (sd->sd_disk->d_consumer != NULL) { 1215 g_raid_change_disk_state(disk, 1216 G_RAID_DISK_S_ACTIVE); 1217 g_raid_change_subdisk_state(sd, 1218 G_RAID_SUBDISK_S_ACTIVE); 1219 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 1220 G_RAID_EVENT_SUBDISK); 1221 } else { 1222 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1223 } 1224 } 1225 1226 /* Write metadata based on created entities. */ 1227 G_RAID_DEBUG1(0, sc, "Array started."); 1228 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1229 1230 /* Pickup any STALE/SPARE disks to refill array if needed. */ 1231 g_raid_md_jmicron_refill(sc); 1232 1233 g_raid_event_send(vol, G_RAID_VOLUME_E_START, 1234 G_RAID_EVENT_VOLUME); 1235 return (0); 1236 } 1237 if (strcmp(verb, "delete") == 0) { 1238 1239 /* Check if some volume is still open. */ 1240 force = gctl_get_paraml(req, "force", sizeof(*force)); 1241 if (force != NULL && *force == 0 && 1242 g_raid_nopens(sc) != 0) { 1243 gctl_error(req, "Some volume is still open."); 1244 return (-4); 1245 } 1246 1247 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1248 if (disk->d_consumer) 1249 jmicron_meta_erase(disk->d_consumer); 1250 } 1251 g_raid_destroy_node(sc, 0); 1252 return (0); 1253 } 1254 if (strcmp(verb, "remove") == 0 || 1255 strcmp(verb, "fail") == 0) { 1256 if (*nargs < 2) { 1257 gctl_error(req, "Invalid number of arguments."); 1258 return (-1); 1259 } 1260 for (i = 1; i < *nargs; i++) { 1261 snprintf(arg, sizeof(arg), "arg%d", i); 1262 diskname = gctl_get_asciiparam(req, arg); 1263 if (diskname == NULL) { 1264 gctl_error(req, "No disk name (%s).", arg); 1265 error = -2; 1266 break; 1267 } 1268 if (strncmp(diskname, "/dev/", 5) == 0) 1269 diskname += 5; 1270 1271 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1272 if (disk->d_consumer != NULL && 1273 disk->d_consumer->provider != NULL && 1274 strcmp(disk->d_consumer->provider->name, 1275 diskname) == 0) 1276 break; 1277 } 1278 if (disk == NULL) { 1279 gctl_error(req, "Disk '%s' not found.", 1280 diskname); 1281 error = -3; 1282 break; 1283 } 1284 1285 if (strcmp(verb, "fail") == 0) { 1286 g_raid_md_fail_disk_jmicron(md, NULL, disk); 1287 continue; 1288 } 1289 1290 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1291 1292 /* Erase metadata on deleting disk. */ 1293 jmicron_meta_erase(disk->d_consumer); 1294 1295 /* If disk was assigned, just update statuses. */ 1296 if (pd->pd_disk_pos >= 0) { 1297 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1298 g_raid_kill_consumer(sc, disk->d_consumer); 1299 disk->d_consumer = NULL; 1300 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 1301 g_raid_change_subdisk_state(sd, 1302 G_RAID_SUBDISK_S_NONE); 1303 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED, 1304 G_RAID_EVENT_SUBDISK); 1305 } 1306 } else { 1307 /* Otherwise -- delete. */ 1308 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 1309 g_raid_destroy_disk(disk); 1310 } 1311 } 1312 1313 /* Write updated metadata to remaining disks. */ 1314 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1315 1316 /* Check if anything left except placeholders. */ 1317 if (g_raid_ndisks(sc, -1) == 1318 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1319 g_raid_destroy_node(sc, 0); 1320 else 1321 g_raid_md_jmicron_refill(sc); 1322 return (error); 1323 } 1324 if (strcmp(verb, "insert") == 0) { 1325 if (*nargs < 2) { 1326 gctl_error(req, "Invalid number of arguments."); 1327 return (-1); 1328 } 1329 update = 0; 1330 for (i = 1; i < *nargs; i++) { 1331 /* Get disk name. */ 1332 snprintf(arg, sizeof(arg), "arg%d", i); 1333 diskname = gctl_get_asciiparam(req, arg); 1334 if (diskname == NULL) { 1335 gctl_error(req, "No disk name (%s).", arg); 1336 error = -3; 1337 break; 1338 } 1339 1340 /* Try to find provider with specified name. */ 1341 g_topology_lock(); 1342 cp = g_raid_open_consumer(sc, diskname); 1343 if (cp == NULL) { 1344 gctl_error(req, "Can't open disk '%s'.", 1345 diskname); 1346 g_topology_unlock(); 1347 error = -4; 1348 break; 1349 } 1350 pp = cp->provider; 1351 1352 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 1353 pd->pd_disk_pos = -3; 1354 pd->pd_disk_id = arc4random() & JMICRON_DISK_MASK; 1355 pd->pd_disk_size = pp->mediasize; 1356 1357 disk = g_raid_create_disk(sc); 1358 disk->d_consumer = cp; 1359 disk->d_md_data = (void *)pd; 1360 cp->private = disk; 1361 g_topology_unlock(); 1362 1363 g_raid_get_disk_info(disk); 1364 1365 /* Welcome the "new" disk. */ 1366 update += g_raid_md_jmicron_start_disk(disk); 1367 if (disk->d_state != G_RAID_DISK_S_ACTIVE && 1368 disk->d_state != G_RAID_DISK_S_SPARE) { 1369 gctl_error(req, "Disk '%s' doesn't fit.", 1370 diskname); 1371 g_raid_destroy_disk(disk); 1372 error = -8; 1373 break; 1374 } 1375 } 1376 1377 /* Write new metadata if we changed something. */ 1378 if (update) 1379 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1380 return (error); 1381 } 1382 gctl_error(req, "Command '%s' is not supported.", verb); 1383 return (-100); 1384 } 1385 1386 static int 1387 g_raid_md_write_jmicron(struct g_raid_md_object *md, struct g_raid_volume *tvol, 1388 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1389 { 1390 struct g_raid_softc *sc; 1391 struct g_raid_volume *vol; 1392 struct g_raid_subdisk *sd; 1393 struct g_raid_disk *disk; 1394 struct g_raid_md_jmicron_object *mdi; 1395 struct g_raid_md_jmicron_perdisk *pd; 1396 struct jmicron_raid_conf *meta; 1397 int i, spares; 1398 1399 sc = md->mdo_softc; 1400 mdi = (struct g_raid_md_jmicron_object *)md; 1401 1402 if (sc->sc_stopping == G_RAID_DESTROY_HARD) 1403 return (0); 1404 1405 /* There is only one volume. */ 1406 vol = TAILQ_FIRST(&sc->sc_volumes); 1407 1408 /* Fill global fields. */ 1409 meta = malloc(sizeof(*meta), M_MD_JMICRON, M_WAITOK | M_ZERO); 1410 strncpy(meta->signature, JMICRON_MAGIC, 2); 1411 meta->version = JMICRON_VERSION; 1412 jmicron_meta_put_name(meta, vol->v_name); 1413 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID0) 1414 meta->type = JMICRON_T_RAID0; 1415 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) 1416 meta->type = JMICRON_T_RAID1; 1417 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) 1418 meta->type = JMICRON_T_RAID01; 1419 else if (vol->v_raid_level == G_RAID_VOLUME_RL_CONCAT || 1420 vol->v_raid_level == G_RAID_VOLUME_RL_SINGLE) 1421 meta->type = JMICRON_T_CONCAT; 1422 else 1423 meta->type = JMICRON_T_RAID5; 1424 meta->stripe_shift = fls(vol->v_strip_size / 2048); 1425 meta->flags = JMICRON_F_READY | JMICRON_F_BOOTABLE; 1426 for (i = 0; i < vol->v_disks_count; i++) { 1427 sd = &vol->v_subdisks[i]; 1428 if (sd->sd_disk == NULL || sd->sd_disk->d_md_data == NULL) 1429 meta->disks[i] = 0xffffffff; 1430 else { 1431 pd = (struct g_raid_md_jmicron_perdisk *) 1432 sd->sd_disk->d_md_data; 1433 meta->disks[i] = pd->pd_disk_id; 1434 } 1435 if (sd->sd_state < G_RAID_SUBDISK_S_STALE) 1436 meta->flags |= JMICRON_F_BADSEC; 1437 if (vol->v_dirty) 1438 meta->flags |= JMICRON_F_UNSYNC; 1439 } 1440 1441 /* Put spares to their slots. */ 1442 spares = 0; 1443 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1444 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1445 if (disk->d_state != G_RAID_DISK_S_SPARE) 1446 continue; 1447 meta->spare[spares] = pd->pd_disk_id; 1448 if (++spares >= 2) 1449 break; 1450 } 1451 1452 /* We are done. Print meta data and store them to disks. */ 1453 if (mdi->mdio_meta != NULL) 1454 free(mdi->mdio_meta, M_MD_JMICRON); 1455 mdi->mdio_meta = meta; 1456 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1457 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1458 if (disk->d_state != G_RAID_DISK_S_ACTIVE && 1459 disk->d_state != G_RAID_DISK_S_SPARE) 1460 continue; 1461 if (pd->pd_meta != NULL) { 1462 free(pd->pd_meta, M_MD_JMICRON); 1463 pd->pd_meta = NULL; 1464 } 1465 pd->pd_meta = jmicron_meta_copy(meta); 1466 pd->pd_meta->disk_id = pd->pd_disk_id; 1467 if ((sd = TAILQ_FIRST(&disk->d_subdisks)) != NULL) { 1468 pd->pd_meta->offset = 1469 (sd->sd_offset / 512) / 16; 1470 pd->pd_meta->disk_sectors_high = 1471 (sd->sd_size / 512) >> 16; 1472 pd->pd_meta->disk_sectors_low = 1473 (sd->sd_size / 512) & 0xffff; 1474 if (sd->sd_state < G_RAID_SUBDISK_S_STALE) 1475 pd->pd_meta->flags &= ~JMICRON_F_BADSEC; 1476 else if (sd->sd_state < G_RAID_SUBDISK_S_ACTIVE) 1477 pd->pd_meta->flags |= JMICRON_F_UNSYNC; 1478 } 1479 G_RAID_DEBUG(1, "Writing JMicron metadata to %s", 1480 g_raid_get_diskname(disk)); 1481 g_raid_md_jmicron_print(pd->pd_meta); 1482 jmicron_meta_write(disk->d_consumer, pd->pd_meta); 1483 } 1484 return (0); 1485 } 1486 1487 static int 1488 g_raid_md_fail_disk_jmicron(struct g_raid_md_object *md, 1489 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1490 { 1491 struct g_raid_softc *sc; 1492 struct g_raid_md_jmicron_perdisk *pd; 1493 struct g_raid_subdisk *sd; 1494 1495 sc = md->mdo_softc; 1496 pd = (struct g_raid_md_jmicron_perdisk *)tdisk->d_md_data; 1497 1498 /* We can't fail disk that is not a part of array now. */ 1499 if (pd->pd_disk_pos < 0) 1500 return (-1); 1501 1502 if (tdisk->d_consumer) 1503 jmicron_meta_erase(tdisk->d_consumer); 1504 1505 /* Change states. */ 1506 g_raid_change_disk_state(tdisk, G_RAID_DISK_S_FAILED); 1507 TAILQ_FOREACH(sd, &tdisk->d_subdisks, sd_next) { 1508 g_raid_change_subdisk_state(sd, 1509 G_RAID_SUBDISK_S_FAILED); 1510 g_raid_event_send(sd, G_RAID_SUBDISK_E_FAILED, 1511 G_RAID_EVENT_SUBDISK); 1512 } 1513 1514 /* Write updated metadata to remaining disks. */ 1515 g_raid_md_write_jmicron(md, NULL, NULL, tdisk); 1516 1517 /* Check if anything left except placeholders. */ 1518 if (g_raid_ndisks(sc, -1) == 1519 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1520 g_raid_destroy_node(sc, 0); 1521 else 1522 g_raid_md_jmicron_refill(sc); 1523 return (0); 1524 } 1525 1526 static int 1527 g_raid_md_free_disk_jmicron(struct g_raid_md_object *md, 1528 struct g_raid_disk *disk) 1529 { 1530 struct g_raid_md_jmicron_perdisk *pd; 1531 1532 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1533 if (pd->pd_meta != NULL) { 1534 free(pd->pd_meta, M_MD_JMICRON); 1535 pd->pd_meta = NULL; 1536 } 1537 free(pd, M_MD_JMICRON); 1538 disk->d_md_data = NULL; 1539 return (0); 1540 } 1541 1542 static int 1543 g_raid_md_free_jmicron(struct g_raid_md_object *md) 1544 { 1545 struct g_raid_md_jmicron_object *mdi; 1546 1547 mdi = (struct g_raid_md_jmicron_object *)md; 1548 if (!mdi->mdio_started) { 1549 mdi->mdio_started = 0; 1550 callout_stop(&mdi->mdio_start_co); 1551 G_RAID_DEBUG1(1, md->mdo_softc, 1552 "root_mount_rel %p", mdi->mdio_rootmount); 1553 root_mount_rel(mdi->mdio_rootmount); 1554 mdi->mdio_rootmount = NULL; 1555 } 1556 if (mdi->mdio_meta != NULL) { 1557 free(mdi->mdio_meta, M_MD_JMICRON); 1558 mdi->mdio_meta = NULL; 1559 } 1560 return (0); 1561 } 1562 1563 G_RAID_MD_DECLARE(jmicron, "JMicron");
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