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sys/geom/raid/md_jmicron.c
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1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2010 Alexander Motin <mav@FreeBSD.org> 5 * Copyright (c) 2000 - 2008 Søren Schmidt <sos@FreeBSD.org> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 #include <sys/param.h> 34 #include <sys/bio.h> 35 #include <sys/endian.h> 36 #include <sys/kernel.h> 37 #include <sys/kobj.h> 38 #include <sys/limits.h> 39 #include <sys/lock.h> 40 #include <sys/malloc.h> 41 #include <sys/mutex.h> 42 #include <sys/systm.h> 43 #include <sys/taskqueue.h> 44 #include <geom/geom.h> 45 #include <geom/geom_dbg.h> 46 #include "geom/raid/g_raid.h" 47 #include "g_raid_md_if.h" 48 49 static MALLOC_DEFINE(M_MD_JMICRON, "md_jmicron_data", "GEOM_RAID JMicron metadata"); 50 51 #define JMICRON_MAX_DISKS 8 52 #define JMICRON_MAX_SPARE 2 53 54 struct jmicron_raid_conf { 55 uint8_t signature[2]; 56 #define JMICRON_MAGIC "JM" 57 58 uint16_t version; 59 #define JMICRON_VERSION 0x0001 60 61 uint16_t checksum; 62 uint8_t filler_1[10]; 63 uint32_t disk_id; 64 uint32_t offset; 65 uint32_t disk_sectors_high; 66 uint16_t disk_sectors_low; 67 uint8_t filler_2[2]; 68 uint8_t name[16]; 69 uint8_t type; 70 #define JMICRON_T_RAID0 0 71 #define JMICRON_T_RAID1 1 72 #define JMICRON_T_RAID01 2 73 #define JMICRON_T_CONCAT 3 74 #define JMICRON_T_RAID5 5 75 76 uint8_t stripe_shift; 77 uint16_t flags; 78 #define JMICRON_F_READY 0x0001 79 #define JMICRON_F_BOOTABLE 0x0002 80 #define JMICRON_F_BADSEC 0x0004 81 #define JMICRON_F_ACTIVE 0x0010 82 #define JMICRON_F_UNSYNC 0x0020 83 #define JMICRON_F_NEWEST 0x0040 84 85 uint8_t filler_3[4]; 86 uint32_t spare[JMICRON_MAX_SPARE]; 87 uint32_t disks[JMICRON_MAX_DISKS]; 88 #define JMICRON_DISK_MASK 0xFFFFFFF0 89 #define JMICRON_SEG_MASK 0x0000000F 90 uint8_t filler_4[32]; 91 uint8_t filler_5[384]; 92 }; 93 94 struct g_raid_md_jmicron_perdisk { 95 struct jmicron_raid_conf *pd_meta; 96 int pd_disk_pos; 97 int pd_disk_id; 98 off_t pd_disk_size; 99 }; 100 101 struct g_raid_md_jmicron_object { 102 struct g_raid_md_object mdio_base; 103 uint32_t mdio_config_id; 104 struct jmicron_raid_conf *mdio_meta; 105 struct callout mdio_start_co; /* STARTING state timer. */ 106 int mdio_total_disks; 107 int mdio_disks_present; 108 int mdio_started; 109 int mdio_incomplete; 110 struct root_hold_token *mdio_rootmount; /* Root mount delay token. */ 111 }; 112 113 static g_raid_md_create_t g_raid_md_create_jmicron; 114 static g_raid_md_taste_t g_raid_md_taste_jmicron; 115 static g_raid_md_event_t g_raid_md_event_jmicron; 116 static g_raid_md_ctl_t g_raid_md_ctl_jmicron; 117 static g_raid_md_write_t g_raid_md_write_jmicron; 118 static g_raid_md_fail_disk_t g_raid_md_fail_disk_jmicron; 119 static g_raid_md_free_disk_t g_raid_md_free_disk_jmicron; 120 static g_raid_md_free_t g_raid_md_free_jmicron; 121 122 static kobj_method_t g_raid_md_jmicron_methods[] = { 123 KOBJMETHOD(g_raid_md_create, g_raid_md_create_jmicron), 124 KOBJMETHOD(g_raid_md_taste, g_raid_md_taste_jmicron), 125 KOBJMETHOD(g_raid_md_event, g_raid_md_event_jmicron), 126 KOBJMETHOD(g_raid_md_ctl, g_raid_md_ctl_jmicron), 127 KOBJMETHOD(g_raid_md_write, g_raid_md_write_jmicron), 128 KOBJMETHOD(g_raid_md_fail_disk, g_raid_md_fail_disk_jmicron), 129 KOBJMETHOD(g_raid_md_free_disk, g_raid_md_free_disk_jmicron), 130 KOBJMETHOD(g_raid_md_free, g_raid_md_free_jmicron), 131 { 0, 0 } 132 }; 133 134 static struct g_raid_md_class g_raid_md_jmicron_class = { 135 "JMicron", 136 g_raid_md_jmicron_methods, 137 sizeof(struct g_raid_md_jmicron_object), 138 .mdc_enable = 1, 139 .mdc_priority = 100 140 }; 141 142 static void 143 g_raid_md_jmicron_print(struct jmicron_raid_conf *meta) 144 { 145 int k; 146 147 if (g_raid_debug < 1) 148 return; 149 150 printf("********* ATA JMicron RAID Metadata *********\n"); 151 printf("signature <%c%c>\n", meta->signature[0], meta->signature[1]); 152 printf("version %04x\n", meta->version); 153 printf("checksum 0x%04x\n", meta->checksum); 154 printf("disk_id 0x%08x\n", meta->disk_id); 155 printf("offset 0x%08x\n", meta->offset); 156 printf("disk_sectors_high 0x%08x\n", meta->disk_sectors_high); 157 printf("disk_sectors_low 0x%04x\n", meta->disk_sectors_low); 158 printf("name <%.16s>\n", meta->name); 159 printf("type %d\n", meta->type); 160 printf("stripe_shift %d\n", meta->stripe_shift); 161 printf("flags %04x\n", meta->flags); 162 printf("spare "); 163 for (k = 0; k < JMICRON_MAX_SPARE; k++) 164 printf(" 0x%08x", meta->spare[k]); 165 printf("\n"); 166 printf("disks "); 167 for (k = 0; k < JMICRON_MAX_DISKS; k++) 168 printf(" 0x%08x", meta->disks[k]); 169 printf("\n"); 170 printf("=================================================\n"); 171 } 172 173 static struct jmicron_raid_conf * 174 jmicron_meta_copy(struct jmicron_raid_conf *meta) 175 { 176 struct jmicron_raid_conf *nmeta; 177 178 nmeta = malloc(sizeof(*meta), M_MD_JMICRON, M_WAITOK); 179 memcpy(nmeta, meta, sizeof(*meta)); 180 return (nmeta); 181 } 182 183 static int 184 jmicron_meta_total_disks(struct jmicron_raid_conf *meta) 185 { 186 int pos; 187 188 for (pos = 0; pos < JMICRON_MAX_DISKS; pos++) { 189 if (meta->disks[pos] == 0) 190 break; 191 } 192 return (pos); 193 } 194 195 static int 196 jmicron_meta_total_spare(struct jmicron_raid_conf *meta) 197 { 198 int pos, n; 199 200 n = 0; 201 for (pos = 0; pos < JMICRON_MAX_SPARE; pos++) { 202 if (meta->spare[pos] != 0) 203 n++; 204 } 205 return (n); 206 } 207 208 /* 209 * Generate fake Configuration ID based on disk IDs. 210 * Note: it will change after each disk set change. 211 */ 212 static uint32_t 213 jmicron_meta_config_id(struct jmicron_raid_conf *meta) 214 { 215 int pos; 216 uint32_t config_id; 217 218 config_id = 0; 219 for (pos = 0; pos < JMICRON_MAX_DISKS; pos++) 220 config_id += meta->disks[pos] << pos; 221 return (config_id); 222 } 223 224 static void 225 jmicron_meta_get_name(struct jmicron_raid_conf *meta, char *buf) 226 { 227 int i; 228 229 strncpy(buf, meta->name, 16); 230 buf[16] = 0; 231 for (i = 15; i >= 0; i--) { 232 if (buf[i] > 0x20) 233 break; 234 buf[i] = 0; 235 } 236 } 237 238 static void 239 jmicron_meta_put_name(struct jmicron_raid_conf *meta, char *buf) 240 { 241 242 memset(meta->name, 0x20, 16); 243 memcpy(meta->name, buf, MIN(strlen(buf), 16)); 244 } 245 246 static int 247 jmicron_meta_find_disk(struct jmicron_raid_conf *meta, uint32_t id) 248 { 249 int pos; 250 251 id &= JMICRON_DISK_MASK; 252 for (pos = 0; pos < JMICRON_MAX_DISKS; pos++) { 253 if ((meta->disks[pos] & JMICRON_DISK_MASK) == id) 254 return (pos); 255 } 256 for (pos = 0; pos < JMICRON_MAX_SPARE; pos++) { 257 if ((meta->spare[pos] & JMICRON_DISK_MASK) == id) 258 return (-3); 259 } 260 return (-1); 261 } 262 263 static struct jmicron_raid_conf * 264 jmicron_meta_read(struct g_consumer *cp) 265 { 266 struct g_provider *pp; 267 struct jmicron_raid_conf *meta; 268 char *buf; 269 int error, i; 270 uint16_t checksum, *ptr; 271 272 pp = cp->provider; 273 if (pp->sectorsize < sizeof(*meta)) 274 return (NULL); 275 /* Read the anchor sector. */ 276 buf = g_read_data(cp, 277 pp->mediasize - pp->sectorsize, pp->sectorsize, &error); 278 if (buf == NULL) { 279 G_RAID_DEBUG(1, "Cannot read metadata from %s (error=%d).", 280 pp->name, error); 281 return (NULL); 282 } 283 meta = (struct jmicron_raid_conf *)buf; 284 285 /* Check if this is an JMicron RAID struct */ 286 if (strncmp(meta->signature, JMICRON_MAGIC, strlen(JMICRON_MAGIC))) { 287 G_RAID_DEBUG(1, "JMicron signature check failed on %s", pp->name); 288 g_free(buf); 289 return (NULL); 290 } 291 meta = malloc(sizeof(*meta), M_MD_JMICRON, M_WAITOK); 292 memcpy(meta, buf, min(sizeof(*meta), pp->sectorsize)); 293 g_free(buf); 294 295 /* Check metadata checksum. */ 296 for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i < 64; i++) 297 checksum += *ptr++; 298 if (checksum != 0) { 299 G_RAID_DEBUG(1, "JMicron checksum check failed on %s", pp->name); 300 free(meta, M_MD_JMICRON); 301 return (NULL); 302 } 303 304 return (meta); 305 } 306 307 static int 308 jmicron_meta_write(struct g_consumer *cp, struct jmicron_raid_conf *meta) 309 { 310 struct g_provider *pp; 311 char *buf; 312 int error, i; 313 uint16_t checksum, *ptr; 314 315 pp = cp->provider; 316 317 /* Recalculate checksum for case if metadata were changed. */ 318 meta->checksum = 0; 319 for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i < 64; i++) 320 checksum += *ptr++; 321 meta->checksum -= checksum; 322 323 /* Create and fill buffer. */ 324 buf = malloc(pp->sectorsize, M_MD_JMICRON, M_WAITOK | M_ZERO); 325 memcpy(buf, meta, sizeof(*meta)); 326 327 error = g_write_data(cp, 328 pp->mediasize - pp->sectorsize, buf, pp->sectorsize); 329 if (error != 0) { 330 G_RAID_DEBUG(1, "Cannot write metadata to %s (error=%d).", 331 pp->name, error); 332 } 333 334 free(buf, M_MD_JMICRON); 335 return (error); 336 } 337 338 static int 339 jmicron_meta_erase(struct g_consumer *cp) 340 { 341 struct g_provider *pp; 342 char *buf; 343 int error; 344 345 pp = cp->provider; 346 buf = malloc(pp->sectorsize, M_MD_JMICRON, M_WAITOK | M_ZERO); 347 error = g_write_data(cp, 348 pp->mediasize - pp->sectorsize, buf, pp->sectorsize); 349 if (error != 0) { 350 G_RAID_DEBUG(1, "Cannot erase metadata on %s (error=%d).", 351 pp->name, error); 352 } 353 free(buf, M_MD_JMICRON); 354 return (error); 355 } 356 357 static struct g_raid_disk * 358 g_raid_md_jmicron_get_disk(struct g_raid_softc *sc, int id) 359 { 360 struct g_raid_disk *disk; 361 struct g_raid_md_jmicron_perdisk *pd; 362 363 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 364 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 365 if (pd->pd_disk_pos == id) 366 break; 367 } 368 return (disk); 369 } 370 371 static int 372 g_raid_md_jmicron_supported(int level, int qual, int disks, int force) 373 { 374 375 if (disks > 8) 376 return (0); 377 switch (level) { 378 case G_RAID_VOLUME_RL_RAID0: 379 if (disks < 1) 380 return (0); 381 if (!force && (disks < 2 || disks > 6)) 382 return (0); 383 break; 384 case G_RAID_VOLUME_RL_RAID1: 385 if (disks < 1) 386 return (0); 387 if (!force && (disks != 2)) 388 return (0); 389 break; 390 case G_RAID_VOLUME_RL_RAID1E: 391 if (disks < 2) 392 return (0); 393 if (!force && (disks != 4)) 394 return (0); 395 break; 396 case G_RAID_VOLUME_RL_SINGLE: 397 if (disks != 1) 398 return (0); 399 if (!force) 400 return (0); 401 break; 402 case G_RAID_VOLUME_RL_CONCAT: 403 if (disks < 2) 404 return (0); 405 break; 406 case G_RAID_VOLUME_RL_RAID5: 407 if (disks < 3) 408 return (0); 409 if (qual != G_RAID_VOLUME_RLQ_R5LA) 410 return (0); 411 if (!force) 412 return (0); 413 break; 414 default: 415 return (0); 416 } 417 if (level != G_RAID_VOLUME_RL_RAID5 && qual != G_RAID_VOLUME_RLQ_NONE) 418 return (0); 419 return (1); 420 } 421 422 static int 423 g_raid_md_jmicron_start_disk(struct g_raid_disk *disk) 424 { 425 struct g_raid_softc *sc; 426 struct g_raid_subdisk *sd, *tmpsd; 427 struct g_raid_disk *olddisk, *tmpdisk; 428 struct g_raid_md_object *md; 429 struct g_raid_md_jmicron_object *mdi; 430 struct g_raid_md_jmicron_perdisk *pd, *oldpd; 431 struct jmicron_raid_conf *meta; 432 int disk_pos, resurrection = 0; 433 434 sc = disk->d_softc; 435 md = sc->sc_md; 436 mdi = (struct g_raid_md_jmicron_object *)md; 437 meta = mdi->mdio_meta; 438 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 439 olddisk = NULL; 440 441 /* Find disk position in metadata by its serial. */ 442 if (pd->pd_meta != NULL) 443 disk_pos = jmicron_meta_find_disk(meta, pd->pd_disk_id); 444 else 445 disk_pos = -1; 446 if (disk_pos < 0) { 447 G_RAID_DEBUG1(1, sc, "Unknown, probably new or stale disk"); 448 /* If we are in the start process, that's all for now. */ 449 if (!mdi->mdio_started) 450 goto nofit; 451 /* 452 * If we have already started - try to get use of the disk. 453 * Try to replace OFFLINE disks first, then FAILED. 454 */ 455 TAILQ_FOREACH(tmpdisk, &sc->sc_disks, d_next) { 456 if (tmpdisk->d_state != G_RAID_DISK_S_OFFLINE && 457 tmpdisk->d_state != G_RAID_DISK_S_FAILED) 458 continue; 459 /* Make sure this disk is big enough. */ 460 TAILQ_FOREACH(sd, &tmpdisk->d_subdisks, sd_next) { 461 if (sd->sd_offset + sd->sd_size + 512 > 462 pd->pd_disk_size) { 463 G_RAID_DEBUG1(1, sc, 464 "Disk too small (%ju < %ju)", 465 pd->pd_disk_size, 466 sd->sd_offset + sd->sd_size + 512); 467 break; 468 } 469 } 470 if (sd != NULL) 471 continue; 472 if (tmpdisk->d_state == G_RAID_DISK_S_OFFLINE) { 473 olddisk = tmpdisk; 474 break; 475 } else if (olddisk == NULL) 476 olddisk = tmpdisk; 477 } 478 if (olddisk == NULL) { 479 nofit: 480 if (disk_pos == -3 || pd->pd_disk_pos == -3) { 481 g_raid_change_disk_state(disk, 482 G_RAID_DISK_S_SPARE); 483 return (1); 484 } else { 485 g_raid_change_disk_state(disk, 486 G_RAID_DISK_S_STALE); 487 return (0); 488 } 489 } 490 oldpd = (struct g_raid_md_jmicron_perdisk *)olddisk->d_md_data; 491 disk_pos = oldpd->pd_disk_pos; 492 resurrection = 1; 493 } 494 495 if (olddisk == NULL) { 496 /* Find placeholder by position. */ 497 olddisk = g_raid_md_jmicron_get_disk(sc, disk_pos); 498 if (olddisk == NULL) 499 panic("No disk at position %d!", disk_pos); 500 if (olddisk->d_state != G_RAID_DISK_S_OFFLINE) { 501 G_RAID_DEBUG1(1, sc, "More than one disk for pos %d", 502 disk_pos); 503 g_raid_change_disk_state(disk, G_RAID_DISK_S_STALE); 504 return (0); 505 } 506 oldpd = (struct g_raid_md_jmicron_perdisk *)olddisk->d_md_data; 507 } 508 509 /* Replace failed disk or placeholder with new disk. */ 510 TAILQ_FOREACH_SAFE(sd, &olddisk->d_subdisks, sd_next, tmpsd) { 511 TAILQ_REMOVE(&olddisk->d_subdisks, sd, sd_next); 512 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 513 sd->sd_disk = disk; 514 } 515 oldpd->pd_disk_pos = -2; 516 pd->pd_disk_pos = disk_pos; 517 /* Update global metadata just in case. */ 518 meta->disks[disk_pos] = pd->pd_disk_id; 519 520 /* If it was placeholder -- destroy it. */ 521 if (olddisk->d_state == G_RAID_DISK_S_OFFLINE) { 522 g_raid_destroy_disk(olddisk); 523 } else { 524 /* Otherwise, make it STALE_FAILED. */ 525 g_raid_change_disk_state(olddisk, G_RAID_DISK_S_STALE_FAILED); 526 } 527 528 /* Welcome the new disk. */ 529 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE); 530 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 531 /* 532 * Different disks may have different sizes/offsets, 533 * especially in concat mode. Update. 534 */ 535 if (!resurrection) { 536 sd->sd_offset = 537 (off_t)pd->pd_meta->offset * 16 * 512; //ZZZ 538 sd->sd_size = 539 (((off_t)pd->pd_meta->disk_sectors_high << 16) + 540 pd->pd_meta->disk_sectors_low) * 512; 541 } 542 543 if (resurrection) { 544 /* Stale disk, almost same as new. */ 545 g_raid_change_subdisk_state(sd, 546 G_RAID_SUBDISK_S_NEW); 547 } else if ((meta->flags & JMICRON_F_BADSEC) != 0 && 548 (pd->pd_meta->flags & JMICRON_F_BADSEC) == 0) { 549 /* Cold-inserted or rebuilding disk. */ 550 g_raid_change_subdisk_state(sd, 551 G_RAID_SUBDISK_S_NEW); 552 } else if (pd->pd_meta->flags & JMICRON_F_UNSYNC) { 553 /* Dirty or resyncing disk.. */ 554 g_raid_change_subdisk_state(sd, 555 G_RAID_SUBDISK_S_STALE); 556 } else { 557 /* Up to date disk. */ 558 g_raid_change_subdisk_state(sd, 559 G_RAID_SUBDISK_S_ACTIVE); 560 } 561 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 562 G_RAID_EVENT_SUBDISK); 563 } 564 565 /* Update status of our need for spare. */ 566 if (mdi->mdio_started) { 567 mdi->mdio_incomplete = 568 (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < 569 mdi->mdio_total_disks); 570 } 571 572 return (resurrection); 573 } 574 575 static void 576 g_disk_md_jmicron_retaste(void *arg, int pending) 577 { 578 579 G_RAID_DEBUG(1, "Array is not complete, trying to retaste."); 580 g_retaste(&g_raid_class); 581 free(arg, M_MD_JMICRON); 582 } 583 584 static void 585 g_raid_md_jmicron_refill(struct g_raid_softc *sc) 586 { 587 struct g_raid_md_object *md; 588 struct g_raid_md_jmicron_object *mdi; 589 struct g_raid_disk *disk; 590 struct task *task; 591 int update, na; 592 593 md = sc->sc_md; 594 mdi = (struct g_raid_md_jmicron_object *)md; 595 update = 0; 596 do { 597 /* Make sure we miss anything. */ 598 na = g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE); 599 if (na == mdi->mdio_total_disks) 600 break; 601 602 G_RAID_DEBUG1(1, md->mdo_softc, 603 "Array is not complete (%d of %d), " 604 "trying to refill.", na, mdi->mdio_total_disks); 605 606 /* Try to get use some of STALE disks. */ 607 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 608 if (disk->d_state == G_RAID_DISK_S_STALE) { 609 update += g_raid_md_jmicron_start_disk(disk); 610 if (disk->d_state == G_RAID_DISK_S_ACTIVE) 611 break; 612 } 613 } 614 if (disk != NULL) 615 continue; 616 617 /* Try to get use some of SPARE disks. */ 618 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 619 if (disk->d_state == G_RAID_DISK_S_SPARE) { 620 update += g_raid_md_jmicron_start_disk(disk); 621 if (disk->d_state == G_RAID_DISK_S_ACTIVE) 622 break; 623 } 624 } 625 } while (disk != NULL); 626 627 /* Write new metadata if we changed something. */ 628 if (update) 629 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 630 631 /* Update status of our need for spare. */ 632 mdi->mdio_incomplete = (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < 633 mdi->mdio_total_disks); 634 635 /* Request retaste hoping to find spare. */ 636 if (mdi->mdio_incomplete) { 637 task = malloc(sizeof(struct task), 638 M_MD_JMICRON, M_WAITOK | M_ZERO); 639 TASK_INIT(task, 0, g_disk_md_jmicron_retaste, task); 640 taskqueue_enqueue(taskqueue_swi, task); 641 } 642 } 643 644 static void 645 g_raid_md_jmicron_start(struct g_raid_softc *sc) 646 { 647 struct g_raid_md_object *md; 648 struct g_raid_md_jmicron_object *mdi; 649 struct g_raid_md_jmicron_perdisk *pd; 650 struct jmicron_raid_conf *meta; 651 struct g_raid_volume *vol; 652 struct g_raid_subdisk *sd; 653 struct g_raid_disk *disk; 654 off_t size; 655 int j, disk_pos; 656 char buf[17]; 657 658 md = sc->sc_md; 659 mdi = (struct g_raid_md_jmicron_object *)md; 660 meta = mdi->mdio_meta; 661 662 /* Create volumes and subdisks. */ 663 jmicron_meta_get_name(meta, buf); 664 vol = g_raid_create_volume(sc, buf, -1); 665 size = ((off_t)meta->disk_sectors_high << 16) + meta->disk_sectors_low; 666 size *= 512; //ZZZ 667 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_NONE; 668 if (meta->type == JMICRON_T_RAID0) { 669 vol->v_raid_level = G_RAID_VOLUME_RL_RAID0; 670 vol->v_mediasize = size * mdi->mdio_total_disks; 671 } else if (meta->type == JMICRON_T_RAID1) { 672 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1; 673 vol->v_mediasize = size; 674 } else if (meta->type == JMICRON_T_RAID01) { 675 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1E; 676 vol->v_mediasize = size * mdi->mdio_total_disks / 2; 677 } else if (meta->type == JMICRON_T_CONCAT) { 678 if (mdi->mdio_total_disks == 1) 679 vol->v_raid_level = G_RAID_VOLUME_RL_SINGLE; 680 else 681 vol->v_raid_level = G_RAID_VOLUME_RL_CONCAT; 682 vol->v_mediasize = 0; 683 } else if (meta->type == JMICRON_T_RAID5) { 684 vol->v_raid_level = G_RAID_VOLUME_RL_RAID5; 685 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_R5LA; 686 vol->v_mediasize = size * (mdi->mdio_total_disks - 1); 687 } else { 688 vol->v_raid_level = G_RAID_VOLUME_RL_UNKNOWN; 689 vol->v_mediasize = 0; 690 } 691 vol->v_strip_size = 1024 << meta->stripe_shift; //ZZZ 692 vol->v_disks_count = mdi->mdio_total_disks; 693 vol->v_sectorsize = 512; //ZZZ 694 for (j = 0; j < vol->v_disks_count; j++) { 695 sd = &vol->v_subdisks[j]; 696 sd->sd_offset = (off_t)meta->offset * 16 * 512; //ZZZ 697 sd->sd_size = size; 698 } 699 g_raid_start_volume(vol); 700 701 /* Create disk placeholders to store data for later writing. */ 702 for (disk_pos = 0; disk_pos < mdi->mdio_total_disks; disk_pos++) { 703 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 704 pd->pd_disk_pos = disk_pos; 705 pd->pd_disk_id = meta->disks[disk_pos]; 706 disk = g_raid_create_disk(sc); 707 disk->d_md_data = (void *)pd; 708 disk->d_state = G_RAID_DISK_S_OFFLINE; 709 sd = &vol->v_subdisks[disk_pos]; 710 sd->sd_disk = disk; 711 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 712 } 713 714 /* Make all disks found till the moment take their places. */ 715 do { 716 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 717 if (disk->d_state == G_RAID_DISK_S_NONE) { 718 g_raid_md_jmicron_start_disk(disk); 719 break; 720 } 721 } 722 } while (disk != NULL); 723 724 mdi->mdio_started = 1; 725 G_RAID_DEBUG1(0, sc, "Array started."); 726 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 727 728 /* Pickup any STALE/SPARE disks to refill array if needed. */ 729 g_raid_md_jmicron_refill(sc); 730 731 g_raid_event_send(vol, G_RAID_VOLUME_E_START, G_RAID_EVENT_VOLUME); 732 733 callout_stop(&mdi->mdio_start_co); 734 G_RAID_DEBUG1(1, sc, "root_mount_rel %p", mdi->mdio_rootmount); 735 root_mount_rel(mdi->mdio_rootmount); 736 mdi->mdio_rootmount = NULL; 737 } 738 739 static void 740 g_raid_md_jmicron_new_disk(struct g_raid_disk *disk) 741 { 742 struct g_raid_softc *sc; 743 struct g_raid_md_object *md; 744 struct g_raid_md_jmicron_object *mdi; 745 struct jmicron_raid_conf *pdmeta; 746 struct g_raid_md_jmicron_perdisk *pd; 747 748 sc = disk->d_softc; 749 md = sc->sc_md; 750 mdi = (struct g_raid_md_jmicron_object *)md; 751 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 752 pdmeta = pd->pd_meta; 753 754 if (mdi->mdio_started) { 755 if (g_raid_md_jmicron_start_disk(disk)) 756 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 757 } else { 758 /* 759 * If we haven't started yet - update common metadata 760 * to get subdisks details, avoiding data from spare disks. 761 */ 762 if (mdi->mdio_meta == NULL || 763 jmicron_meta_find_disk(mdi->mdio_meta, 764 mdi->mdio_meta->disk_id) == -3) { 765 if (mdi->mdio_meta != NULL) 766 free(mdi->mdio_meta, M_MD_JMICRON); 767 mdi->mdio_meta = jmicron_meta_copy(pdmeta); 768 mdi->mdio_total_disks = jmicron_meta_total_disks(pdmeta); 769 } 770 mdi->mdio_meta->flags |= pdmeta->flags & JMICRON_F_BADSEC; 771 772 mdi->mdio_disks_present++; 773 G_RAID_DEBUG1(1, sc, "Matching disk (%d of %d+%d up)", 774 mdi->mdio_disks_present, 775 mdi->mdio_total_disks, 776 jmicron_meta_total_spare(mdi->mdio_meta)); 777 778 /* If we collected all needed disks - start array. */ 779 if (mdi->mdio_disks_present == mdi->mdio_total_disks + 780 jmicron_meta_total_spare(mdi->mdio_meta)) 781 g_raid_md_jmicron_start(sc); 782 } 783 } 784 785 static void 786 g_raid_jmicron_go(void *arg) 787 { 788 struct g_raid_softc *sc; 789 struct g_raid_md_object *md; 790 struct g_raid_md_jmicron_object *mdi; 791 792 sc = arg; 793 md = sc->sc_md; 794 mdi = (struct g_raid_md_jmicron_object *)md; 795 if (!mdi->mdio_started) { 796 G_RAID_DEBUG1(0, sc, "Force array start due to timeout."); 797 g_raid_event_send(sc, G_RAID_NODE_E_START, 0); 798 } 799 } 800 801 static int 802 g_raid_md_create_jmicron(struct g_raid_md_object *md, struct g_class *mp, 803 struct g_geom **gp) 804 { 805 struct g_raid_softc *sc; 806 struct g_raid_md_jmicron_object *mdi; 807 char name[16]; 808 809 mdi = (struct g_raid_md_jmicron_object *)md; 810 mdi->mdio_config_id = arc4random(); 811 snprintf(name, sizeof(name), "JMicron-%08x", mdi->mdio_config_id); 812 sc = g_raid_create_node(mp, name, md); 813 if (sc == NULL) 814 return (G_RAID_MD_TASTE_FAIL); 815 md->mdo_softc = sc; 816 *gp = sc->sc_geom; 817 return (G_RAID_MD_TASTE_NEW); 818 } 819 820 static int 821 g_raid_md_taste_jmicron(struct g_raid_md_object *md, struct g_class *mp, 822 struct g_consumer *cp, struct g_geom **gp) 823 { 824 struct g_consumer *rcp; 825 struct g_provider *pp; 826 struct g_raid_md_jmicron_object *mdi, *mdi1; 827 struct g_raid_softc *sc; 828 struct g_raid_disk *disk; 829 struct jmicron_raid_conf *meta; 830 struct g_raid_md_jmicron_perdisk *pd; 831 struct g_geom *geom; 832 int disk_pos, result, spare, len; 833 char name[16]; 834 uint16_t vendor; 835 836 G_RAID_DEBUG(1, "Tasting JMicron on %s", cp->provider->name); 837 mdi = (struct g_raid_md_jmicron_object *)md; 838 pp = cp->provider; 839 840 /* Read metadata from device. */ 841 meta = NULL; 842 g_topology_unlock(); 843 vendor = 0xffff; 844 len = sizeof(vendor); 845 if (pp->geom->rank == 1) 846 g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor); 847 meta = jmicron_meta_read(cp); 848 g_topology_lock(); 849 if (meta == NULL) { 850 if (g_raid_aggressive_spare) { 851 if (vendor == 0x197b) { 852 G_RAID_DEBUG(1, 853 "No JMicron metadata, forcing spare."); 854 spare = 2; 855 goto search; 856 } else { 857 G_RAID_DEBUG(1, 858 "JMicron vendor mismatch 0x%04x != 0x197b", 859 vendor); 860 } 861 } 862 return (G_RAID_MD_TASTE_FAIL); 863 } 864 865 /* Check this disk position in obtained metadata. */ 866 disk_pos = jmicron_meta_find_disk(meta, meta->disk_id); 867 if (disk_pos == -1) { 868 G_RAID_DEBUG(1, "JMicron disk_id %08x not found", 869 meta->disk_id); 870 goto fail1; 871 } 872 873 /* Metadata valid. Print it. */ 874 g_raid_md_jmicron_print(meta); 875 G_RAID_DEBUG(1, "JMicron disk position %d", disk_pos); 876 spare = (disk_pos == -2) ? 1 : 0; 877 878 search: 879 /* Search for matching node. */ 880 sc = NULL; 881 mdi1 = NULL; 882 LIST_FOREACH(geom, &mp->geom, geom) { 883 sc = geom->softc; 884 if (sc == NULL) 885 continue; 886 if (sc->sc_stopping != 0) 887 continue; 888 if (sc->sc_md->mdo_class != md->mdo_class) 889 continue; 890 mdi1 = (struct g_raid_md_jmicron_object *)sc->sc_md; 891 if (spare == 2) { 892 if (mdi1->mdio_incomplete) 893 break; 894 } else { 895 if (mdi1->mdio_config_id == 896 jmicron_meta_config_id(meta)) 897 break; 898 } 899 } 900 901 /* Found matching node. */ 902 if (geom != NULL) { 903 G_RAID_DEBUG(1, "Found matching array %s", sc->sc_name); 904 result = G_RAID_MD_TASTE_EXISTING; 905 906 } else if (spare) { /* Not found needy node -- left for later. */ 907 G_RAID_DEBUG(1, "Spare is not needed at this time"); 908 goto fail1; 909 910 } else { /* Not found matching node -- create one. */ 911 result = G_RAID_MD_TASTE_NEW; 912 mdi->mdio_config_id = jmicron_meta_config_id(meta); 913 snprintf(name, sizeof(name), "JMicron-%08x", 914 mdi->mdio_config_id); 915 sc = g_raid_create_node(mp, name, md); 916 md->mdo_softc = sc; 917 geom = sc->sc_geom; 918 callout_init(&mdi->mdio_start_co, 1); 919 callout_reset(&mdi->mdio_start_co, g_raid_start_timeout * hz, 920 g_raid_jmicron_go, sc); 921 mdi->mdio_rootmount = root_mount_hold("GRAID-JMicron"); 922 G_RAID_DEBUG1(1, sc, "root_mount_hold %p", mdi->mdio_rootmount); 923 } 924 925 /* There is no return after this point, so we close passed consumer. */ 926 g_access(cp, -1, 0, 0); 927 928 rcp = g_new_consumer(geom); 929 rcp->flags |= G_CF_DIRECT_RECEIVE; 930 g_attach(rcp, pp); 931 if (g_access(rcp, 1, 1, 1) != 0) 932 ; //goto fail1; 933 934 g_topology_unlock(); 935 sx_xlock(&sc->sc_lock); 936 937 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 938 pd->pd_meta = meta; 939 if (spare == 2) { 940 pd->pd_disk_pos = -3; 941 pd->pd_disk_id = arc4random() & JMICRON_DISK_MASK; 942 } else { 943 pd->pd_disk_pos = -1; 944 pd->pd_disk_id = meta->disk_id; 945 } 946 pd->pd_disk_size = pp->mediasize; 947 disk = g_raid_create_disk(sc); 948 disk->d_md_data = (void *)pd; 949 disk->d_consumer = rcp; 950 rcp->private = disk; 951 952 g_raid_get_disk_info(disk); 953 954 g_raid_md_jmicron_new_disk(disk); 955 956 sx_xunlock(&sc->sc_lock); 957 g_topology_lock(); 958 *gp = geom; 959 return (result); 960 fail1: 961 free(meta, M_MD_JMICRON); 962 return (G_RAID_MD_TASTE_FAIL); 963 } 964 965 static int 966 g_raid_md_event_jmicron(struct g_raid_md_object *md, 967 struct g_raid_disk *disk, u_int event) 968 { 969 struct g_raid_softc *sc; 970 struct g_raid_subdisk *sd; 971 struct g_raid_md_jmicron_object *mdi; 972 struct g_raid_md_jmicron_perdisk *pd; 973 974 sc = md->mdo_softc; 975 mdi = (struct g_raid_md_jmicron_object *)md; 976 if (disk == NULL) { 977 switch (event) { 978 case G_RAID_NODE_E_START: 979 if (!mdi->mdio_started) 980 g_raid_md_jmicron_start(sc); 981 return (0); 982 } 983 return (-1); 984 } 985 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 986 switch (event) { 987 case G_RAID_DISK_E_DISCONNECTED: 988 /* If disk was assigned, just update statuses. */ 989 if (pd->pd_disk_pos >= 0) { 990 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 991 if (disk->d_consumer) { 992 g_raid_kill_consumer(sc, disk->d_consumer); 993 disk->d_consumer = NULL; 994 } 995 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 996 g_raid_change_subdisk_state(sd, 997 G_RAID_SUBDISK_S_NONE); 998 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED, 999 G_RAID_EVENT_SUBDISK); 1000 } 1001 } else { 1002 /* Otherwise -- delete. */ 1003 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 1004 g_raid_destroy_disk(disk); 1005 } 1006 1007 /* Write updated metadata to all disks. */ 1008 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1009 1010 /* Check if anything left except placeholders. */ 1011 if (g_raid_ndisks(sc, -1) == 1012 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1013 g_raid_destroy_node(sc, 0); 1014 else 1015 g_raid_md_jmicron_refill(sc); 1016 return (0); 1017 } 1018 return (-2); 1019 } 1020 1021 static int 1022 g_raid_md_ctl_jmicron(struct g_raid_md_object *md, 1023 struct gctl_req *req) 1024 { 1025 struct g_raid_softc *sc; 1026 struct g_raid_volume *vol; 1027 struct g_raid_subdisk *sd; 1028 struct g_raid_disk *disk; 1029 struct g_raid_md_jmicron_object *mdi; 1030 struct g_raid_md_jmicron_perdisk *pd; 1031 struct g_consumer *cp; 1032 struct g_provider *pp; 1033 char arg[16]; 1034 const char *verb, *volname, *levelname, *diskname; 1035 int *nargs, *force; 1036 off_t size, sectorsize, strip; 1037 intmax_t *sizearg, *striparg; 1038 int numdisks, i, len, level, qual, update; 1039 int error; 1040 1041 sc = md->mdo_softc; 1042 mdi = (struct g_raid_md_jmicron_object *)md; 1043 verb = gctl_get_param(req, "verb", NULL); 1044 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 1045 error = 0; 1046 if (strcmp(verb, "label") == 0) { 1047 if (*nargs < 4) { 1048 gctl_error(req, "Invalid number of arguments."); 1049 return (-1); 1050 } 1051 volname = gctl_get_asciiparam(req, "arg1"); 1052 if (volname == NULL) { 1053 gctl_error(req, "No volume name."); 1054 return (-2); 1055 } 1056 levelname = gctl_get_asciiparam(req, "arg2"); 1057 if (levelname == NULL) { 1058 gctl_error(req, "No RAID level."); 1059 return (-3); 1060 } 1061 if (strcasecmp(levelname, "RAID5") == 0) 1062 levelname = "RAID5-LA"; 1063 if (g_raid_volume_str2level(levelname, &level, &qual)) { 1064 gctl_error(req, "Unknown RAID level '%s'.", levelname); 1065 return (-4); 1066 } 1067 numdisks = *nargs - 3; 1068 force = gctl_get_paraml(req, "force", sizeof(*force)); 1069 if (!g_raid_md_jmicron_supported(level, qual, numdisks, 1070 force ? *force : 0)) { 1071 gctl_error(req, "Unsupported RAID level " 1072 "(0x%02x/0x%02x), or number of disks (%d).", 1073 level, qual, numdisks); 1074 return (-5); 1075 } 1076 1077 /* Search for disks, connect them and probe. */ 1078 size = 0x7fffffffffffffffllu; 1079 sectorsize = 0; 1080 for (i = 0; i < numdisks; i++) { 1081 snprintf(arg, sizeof(arg), "arg%d", i + 3); 1082 diskname = gctl_get_asciiparam(req, arg); 1083 if (diskname == NULL) { 1084 gctl_error(req, "No disk name (%s).", arg); 1085 error = -6; 1086 break; 1087 } 1088 if (strcmp(diskname, "NONE") == 0) { 1089 cp = NULL; 1090 pp = NULL; 1091 } else { 1092 g_topology_lock(); 1093 cp = g_raid_open_consumer(sc, diskname); 1094 if (cp == NULL) { 1095 gctl_error(req, "Can't open '%s'.", 1096 diskname); 1097 g_topology_unlock(); 1098 error = -7; 1099 break; 1100 } 1101 pp = cp->provider; 1102 } 1103 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 1104 pd->pd_disk_pos = i; 1105 pd->pd_disk_id = arc4random() & JMICRON_DISK_MASK; 1106 disk = g_raid_create_disk(sc); 1107 disk->d_md_data = (void *)pd; 1108 disk->d_consumer = cp; 1109 if (cp == NULL) 1110 continue; 1111 cp->private = disk; 1112 g_topology_unlock(); 1113 1114 g_raid_get_disk_info(disk); 1115 1116 pd->pd_disk_size = pp->mediasize; 1117 if (size > pp->mediasize) 1118 size = pp->mediasize; 1119 if (sectorsize < pp->sectorsize) 1120 sectorsize = pp->sectorsize; 1121 } 1122 if (error != 0) 1123 return (error); 1124 1125 if (sectorsize <= 0) { 1126 gctl_error(req, "Can't get sector size."); 1127 return (-8); 1128 } 1129 1130 /* Reserve space for metadata. */ 1131 size -= sectorsize; 1132 1133 /* Handle size argument. */ 1134 len = sizeof(*sizearg); 1135 sizearg = gctl_get_param(req, "size", &len); 1136 if (sizearg != NULL && len == sizeof(*sizearg) && 1137 *sizearg > 0) { 1138 if (*sizearg > size) { 1139 gctl_error(req, "Size too big %lld > %lld.", 1140 (long long)*sizearg, (long long)size); 1141 return (-9); 1142 } 1143 size = *sizearg; 1144 } 1145 1146 /* Handle strip argument. */ 1147 strip = 131072; 1148 len = sizeof(*striparg); 1149 striparg = gctl_get_param(req, "strip", &len); 1150 if (striparg != NULL && len == sizeof(*striparg) && 1151 *striparg > 0) { 1152 if (*striparg < sectorsize) { 1153 gctl_error(req, "Strip size too small."); 1154 return (-10); 1155 } 1156 if (*striparg % sectorsize != 0) { 1157 gctl_error(req, "Incorrect strip size."); 1158 return (-11); 1159 } 1160 if (strip > 65535 * sectorsize) { 1161 gctl_error(req, "Strip size too big."); 1162 return (-12); 1163 } 1164 strip = *striparg; 1165 } 1166 1167 /* Round size down to strip or sector. */ 1168 if (level == G_RAID_VOLUME_RL_RAID1) 1169 size -= (size % sectorsize); 1170 else if (level == G_RAID_VOLUME_RL_RAID1E && 1171 (numdisks & 1) != 0) 1172 size -= (size % (2 * strip)); 1173 else 1174 size -= (size % strip); 1175 if (size <= 0) { 1176 gctl_error(req, "Size too small."); 1177 return (-13); 1178 } 1179 if (size > 0xffffffffffffllu * sectorsize) { 1180 gctl_error(req, "Size too big."); 1181 return (-14); 1182 } 1183 1184 /* We have all we need, create things: volume, ... */ 1185 mdi->mdio_total_disks = numdisks; 1186 mdi->mdio_started = 1; 1187 vol = g_raid_create_volume(sc, volname, -1); 1188 vol->v_md_data = (void *)(intptr_t)0; 1189 vol->v_raid_level = level; 1190 vol->v_raid_level_qualifier = qual; 1191 vol->v_strip_size = strip; 1192 vol->v_disks_count = numdisks; 1193 if (level == G_RAID_VOLUME_RL_RAID0 || 1194 level == G_RAID_VOLUME_RL_CONCAT || 1195 level == G_RAID_VOLUME_RL_SINGLE) 1196 vol->v_mediasize = size * numdisks; 1197 else if (level == G_RAID_VOLUME_RL_RAID1) 1198 vol->v_mediasize = size; 1199 else if (level == G_RAID_VOLUME_RL_RAID5) 1200 vol->v_mediasize = size * (numdisks - 1); 1201 else { /* RAID1E */ 1202 vol->v_mediasize = ((size * numdisks) / strip / 2) * 1203 strip; 1204 } 1205 vol->v_sectorsize = sectorsize; 1206 g_raid_start_volume(vol); 1207 1208 /* , and subdisks. */ 1209 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1210 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1211 sd = &vol->v_subdisks[pd->pd_disk_pos]; 1212 sd->sd_disk = disk; 1213 sd->sd_offset = 0; 1214 sd->sd_size = size; 1215 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 1216 if (sd->sd_disk->d_consumer != NULL) { 1217 g_raid_change_disk_state(disk, 1218 G_RAID_DISK_S_ACTIVE); 1219 g_raid_change_subdisk_state(sd, 1220 G_RAID_SUBDISK_S_ACTIVE); 1221 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 1222 G_RAID_EVENT_SUBDISK); 1223 } else { 1224 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1225 } 1226 } 1227 1228 /* Write metadata based on created entities. */ 1229 G_RAID_DEBUG1(0, sc, "Array started."); 1230 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1231 1232 /* Pickup any STALE/SPARE disks to refill array if needed. */ 1233 g_raid_md_jmicron_refill(sc); 1234 1235 g_raid_event_send(vol, G_RAID_VOLUME_E_START, 1236 G_RAID_EVENT_VOLUME); 1237 return (0); 1238 } 1239 if (strcmp(verb, "delete") == 0) { 1240 /* Check if some volume is still open. */ 1241 force = gctl_get_paraml(req, "force", sizeof(*force)); 1242 if (force != NULL && *force == 0 && 1243 g_raid_nopens(sc) != 0) { 1244 gctl_error(req, "Some volume is still open."); 1245 return (-4); 1246 } 1247 1248 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1249 if (disk->d_consumer) 1250 jmicron_meta_erase(disk->d_consumer); 1251 } 1252 g_raid_destroy_node(sc, 0); 1253 return (0); 1254 } 1255 if (strcmp(verb, "remove") == 0 || 1256 strcmp(verb, "fail") == 0) { 1257 if (*nargs < 2) { 1258 gctl_error(req, "Invalid number of arguments."); 1259 return (-1); 1260 } 1261 for (i = 1; i < *nargs; i++) { 1262 snprintf(arg, sizeof(arg), "arg%d", i); 1263 diskname = gctl_get_asciiparam(req, arg); 1264 if (diskname == NULL) { 1265 gctl_error(req, "No disk name (%s).", arg); 1266 error = -2; 1267 break; 1268 } 1269 if (strncmp(diskname, _PATH_DEV, 5) == 0) 1270 diskname += 5; 1271 1272 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1273 if (disk->d_consumer != NULL && 1274 disk->d_consumer->provider != NULL && 1275 strcmp(disk->d_consumer->provider->name, 1276 diskname) == 0) 1277 break; 1278 } 1279 if (disk == NULL) { 1280 gctl_error(req, "Disk '%s' not found.", 1281 diskname); 1282 error = -3; 1283 break; 1284 } 1285 1286 if (strcmp(verb, "fail") == 0) { 1287 g_raid_md_fail_disk_jmicron(md, NULL, disk); 1288 continue; 1289 } 1290 1291 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1292 1293 /* Erase metadata on deleting disk. */ 1294 jmicron_meta_erase(disk->d_consumer); 1295 1296 /* If disk was assigned, just update statuses. */ 1297 if (pd->pd_disk_pos >= 0) { 1298 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1299 g_raid_kill_consumer(sc, disk->d_consumer); 1300 disk->d_consumer = NULL; 1301 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 1302 g_raid_change_subdisk_state(sd, 1303 G_RAID_SUBDISK_S_NONE); 1304 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED, 1305 G_RAID_EVENT_SUBDISK); 1306 } 1307 } else { 1308 /* Otherwise -- delete. */ 1309 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 1310 g_raid_destroy_disk(disk); 1311 } 1312 } 1313 1314 /* Write updated metadata to remaining disks. */ 1315 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1316 1317 /* Check if anything left except placeholders. */ 1318 if (g_raid_ndisks(sc, -1) == 1319 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1320 g_raid_destroy_node(sc, 0); 1321 else 1322 g_raid_md_jmicron_refill(sc); 1323 return (error); 1324 } 1325 if (strcmp(verb, "insert") == 0) { 1326 if (*nargs < 2) { 1327 gctl_error(req, "Invalid number of arguments."); 1328 return (-1); 1329 } 1330 update = 0; 1331 for (i = 1; i < *nargs; i++) { 1332 /* Get disk name. */ 1333 snprintf(arg, sizeof(arg), "arg%d", i); 1334 diskname = gctl_get_asciiparam(req, arg); 1335 if (diskname == NULL) { 1336 gctl_error(req, "No disk name (%s).", arg); 1337 error = -3; 1338 break; 1339 } 1340 1341 /* Try to find provider with specified name. */ 1342 g_topology_lock(); 1343 cp = g_raid_open_consumer(sc, diskname); 1344 if (cp == NULL) { 1345 gctl_error(req, "Can't open disk '%s'.", 1346 diskname); 1347 g_topology_unlock(); 1348 error = -4; 1349 break; 1350 } 1351 pp = cp->provider; 1352 1353 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 1354 pd->pd_disk_pos = -3; 1355 pd->pd_disk_id = arc4random() & JMICRON_DISK_MASK; 1356 pd->pd_disk_size = pp->mediasize; 1357 1358 disk = g_raid_create_disk(sc); 1359 disk->d_consumer = cp; 1360 disk->d_md_data = (void *)pd; 1361 cp->private = disk; 1362 g_topology_unlock(); 1363 1364 g_raid_get_disk_info(disk); 1365 1366 /* Welcome the "new" disk. */ 1367 update += g_raid_md_jmicron_start_disk(disk); 1368 if (disk->d_state != G_RAID_DISK_S_ACTIVE && 1369 disk->d_state != G_RAID_DISK_S_SPARE) { 1370 gctl_error(req, "Disk '%s' doesn't fit.", 1371 diskname); 1372 g_raid_destroy_disk(disk); 1373 error = -8; 1374 break; 1375 } 1376 } 1377 1378 /* Write new metadata if we changed something. */ 1379 if (update) 1380 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1381 return (error); 1382 } 1383 gctl_error(req, "Command '%s' is not supported.", verb); 1384 return (-100); 1385 } 1386 1387 static int 1388 g_raid_md_write_jmicron(struct g_raid_md_object *md, struct g_raid_volume *tvol, 1389 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1390 { 1391 struct g_raid_softc *sc; 1392 struct g_raid_volume *vol; 1393 struct g_raid_subdisk *sd; 1394 struct g_raid_disk *disk; 1395 struct g_raid_md_jmicron_object *mdi; 1396 struct g_raid_md_jmicron_perdisk *pd; 1397 struct jmicron_raid_conf *meta; 1398 int i, spares; 1399 1400 sc = md->mdo_softc; 1401 mdi = (struct g_raid_md_jmicron_object *)md; 1402 1403 if (sc->sc_stopping == G_RAID_DESTROY_HARD) 1404 return (0); 1405 1406 /* There is only one volume. */ 1407 vol = TAILQ_FIRST(&sc->sc_volumes); 1408 1409 /* Fill global fields. */ 1410 meta = malloc(sizeof(*meta), M_MD_JMICRON, M_WAITOK | M_ZERO); 1411 strncpy(meta->signature, JMICRON_MAGIC, 2); 1412 meta->version = JMICRON_VERSION; 1413 jmicron_meta_put_name(meta, vol->v_name); 1414 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID0) 1415 meta->type = JMICRON_T_RAID0; 1416 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) 1417 meta->type = JMICRON_T_RAID1; 1418 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) 1419 meta->type = JMICRON_T_RAID01; 1420 else if (vol->v_raid_level == G_RAID_VOLUME_RL_CONCAT || 1421 vol->v_raid_level == G_RAID_VOLUME_RL_SINGLE) 1422 meta->type = JMICRON_T_CONCAT; 1423 else 1424 meta->type = JMICRON_T_RAID5; 1425 meta->stripe_shift = fls(vol->v_strip_size / 2048); 1426 meta->flags = JMICRON_F_READY | JMICRON_F_BOOTABLE; 1427 for (i = 0; i < vol->v_disks_count; i++) { 1428 sd = &vol->v_subdisks[i]; 1429 if (sd->sd_disk == NULL || sd->sd_disk->d_md_data == NULL) 1430 meta->disks[i] = 0xffffffff; 1431 else { 1432 pd = (struct g_raid_md_jmicron_perdisk *) 1433 sd->sd_disk->d_md_data; 1434 meta->disks[i] = pd->pd_disk_id; 1435 } 1436 if (sd->sd_state < G_RAID_SUBDISK_S_STALE) 1437 meta->flags |= JMICRON_F_BADSEC; 1438 if (vol->v_dirty) 1439 meta->flags |= JMICRON_F_UNSYNC; 1440 } 1441 1442 /* Put spares to their slots. */ 1443 spares = 0; 1444 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1445 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1446 if (disk->d_state != G_RAID_DISK_S_SPARE) 1447 continue; 1448 meta->spare[spares] = pd->pd_disk_id; 1449 if (++spares >= 2) 1450 break; 1451 } 1452 1453 /* We are done. Print meta data and store them to disks. */ 1454 if (mdi->mdio_meta != NULL) 1455 free(mdi->mdio_meta, M_MD_JMICRON); 1456 mdi->mdio_meta = meta; 1457 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1458 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1459 if (disk->d_state != G_RAID_DISK_S_ACTIVE && 1460 disk->d_state != G_RAID_DISK_S_SPARE) 1461 continue; 1462 if (pd->pd_meta != NULL) { 1463 free(pd->pd_meta, M_MD_JMICRON); 1464 pd->pd_meta = NULL; 1465 } 1466 pd->pd_meta = jmicron_meta_copy(meta); 1467 pd->pd_meta->disk_id = pd->pd_disk_id; 1468 if ((sd = TAILQ_FIRST(&disk->d_subdisks)) != NULL) { 1469 pd->pd_meta->offset = 1470 (sd->sd_offset / 512) / 16; 1471 pd->pd_meta->disk_sectors_high = 1472 (sd->sd_size / 512) >> 16; 1473 pd->pd_meta->disk_sectors_low = 1474 (sd->sd_size / 512) & 0xffff; 1475 if (sd->sd_state < G_RAID_SUBDISK_S_STALE) 1476 pd->pd_meta->flags &= ~JMICRON_F_BADSEC; 1477 else if (sd->sd_state < G_RAID_SUBDISK_S_ACTIVE) 1478 pd->pd_meta->flags |= JMICRON_F_UNSYNC; 1479 } 1480 G_RAID_DEBUG(1, "Writing JMicron metadata to %s", 1481 g_raid_get_diskname(disk)); 1482 g_raid_md_jmicron_print(pd->pd_meta); 1483 jmicron_meta_write(disk->d_consumer, pd->pd_meta); 1484 } 1485 return (0); 1486 } 1487 1488 static int 1489 g_raid_md_fail_disk_jmicron(struct g_raid_md_object *md, 1490 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1491 { 1492 struct g_raid_softc *sc; 1493 struct g_raid_md_jmicron_perdisk *pd; 1494 struct g_raid_subdisk *sd; 1495 1496 sc = md->mdo_softc; 1497 pd = (struct g_raid_md_jmicron_perdisk *)tdisk->d_md_data; 1498 1499 /* We can't fail disk that is not a part of array now. */ 1500 if (pd->pd_disk_pos < 0) 1501 return (-1); 1502 1503 if (tdisk->d_consumer) 1504 jmicron_meta_erase(tdisk->d_consumer); 1505 1506 /* Change states. */ 1507 g_raid_change_disk_state(tdisk, G_RAID_DISK_S_FAILED); 1508 TAILQ_FOREACH(sd, &tdisk->d_subdisks, sd_next) { 1509 g_raid_change_subdisk_state(sd, 1510 G_RAID_SUBDISK_S_FAILED); 1511 g_raid_event_send(sd, G_RAID_SUBDISK_E_FAILED, 1512 G_RAID_EVENT_SUBDISK); 1513 } 1514 1515 /* Write updated metadata to remaining disks. */ 1516 g_raid_md_write_jmicron(md, NULL, NULL, tdisk); 1517 1518 /* Check if anything left except placeholders. */ 1519 if (g_raid_ndisks(sc, -1) == 1520 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1521 g_raid_destroy_node(sc, 0); 1522 else 1523 g_raid_md_jmicron_refill(sc); 1524 return (0); 1525 } 1526 1527 static int 1528 g_raid_md_free_disk_jmicron(struct g_raid_md_object *md, 1529 struct g_raid_disk *disk) 1530 { 1531 struct g_raid_md_jmicron_perdisk *pd; 1532 1533 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1534 if (pd->pd_meta != NULL) { 1535 free(pd->pd_meta, M_MD_JMICRON); 1536 pd->pd_meta = NULL; 1537 } 1538 free(pd, M_MD_JMICRON); 1539 disk->d_md_data = NULL; 1540 return (0); 1541 } 1542 1543 static int 1544 g_raid_md_free_jmicron(struct g_raid_md_object *md) 1545 { 1546 struct g_raid_md_jmicron_object *mdi; 1547 1548 mdi = (struct g_raid_md_jmicron_object *)md; 1549 if (!mdi->mdio_started) { 1550 mdi->mdio_started = 0; 1551 callout_stop(&mdi->mdio_start_co); 1552 G_RAID_DEBUG1(1, md->mdo_softc, 1553 "root_mount_rel %p", mdi->mdio_rootmount); 1554 root_mount_rel(mdi->mdio_rootmount); 1555 mdi->mdio_rootmount = NULL; 1556 } 1557 if (mdi->mdio_meta != NULL) { 1558 free(mdi->mdio_meta, M_MD_JMICRON); 1559 mdi->mdio_meta = NULL; 1560 } 1561 return (0); 1562 } 1563 1564 G_RAID_MD_DECLARE(jmicron, "JMicron");
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