md_jmicron.c revision 234458
1/*- 2 * Copyright (c) 2010 Alexander Motin <mav@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD: head/sys/geom/raid/md_jmicron.c 234458 2012-04-19 12:30:12Z mav $"); 29 30#include <sys/param.h> 31#include <sys/bio.h> 32#include <sys/endian.h> 33#include <sys/kernel.h> 34#include <sys/kobj.h> 35#include <sys/limits.h> 36#include <sys/lock.h> 37#include <sys/malloc.h> 38#include <sys/mutex.h> 39#include <sys/systm.h> 40#include <sys/taskqueue.h> 41#include <geom/geom.h> 42#include "geom/raid/g_raid.h" 43#include "g_raid_md_if.h" 44 45static MALLOC_DEFINE(M_MD_JMICRON, "md_jmicron_data", "GEOM_RAID JMicron metadata"); 46 47#define JMICRON_MAX_DISKS 8 48#define JMICRON_MAX_SPARE 2 49 50struct jmicron_raid_conf { 51 u_int8_t signature[2]; 52#define JMICRON_MAGIC "JM" 53 54 u_int16_t version; 55#define JMICRON_VERSION 0x0001 56 57 u_int16_t checksum; 58 u_int8_t filler_1[10]; 59 u_int32_t disk_id; 60 u_int32_t offset; 61 u_int32_t disk_sectors_high; 62 u_int16_t disk_sectors_low; 63 u_int8_t filler_2[2]; 64 u_int8_t name[16]; 65 u_int8_t type; 66#define JMICRON_T_RAID0 0 67#define JMICRON_T_RAID1 1 68#define JMICRON_T_RAID01 2 69#define JMICRON_T_CONCAT 3 70#define JMICRON_T_RAID5 5 71 72 u_int8_t stripe_shift; 73 u_int16_t flags; 74#define JMICRON_F_READY 0x0001 75#define JMICRON_F_BOOTABLE 0x0002 76#define JMICRON_F_BADSEC 0x0004 77#define JMICRON_F_ACTIVE 0x0010 78#define JMICRON_F_UNSYNC 0x0020 79#define JMICRON_F_NEWEST 0x0040 80 81 u_int8_t filler_3[4]; 82 u_int32_t spare[JMICRON_MAX_SPARE]; 83 u_int32_t disks[JMICRON_MAX_DISKS]; 84#define JMICRON_DISK_MASK 0xFFFFFFF0 85#define JMICRON_SEG_MASK 0x0000000F 86 u_int8_t filler_4[32]; 87 u_int8_t filler_5[384]; 88}; 89 90struct g_raid_md_jmicron_perdisk { 91 struct jmicron_raid_conf *pd_meta; 92 int pd_disk_pos; 93 int pd_disk_id; 94 off_t pd_disk_size; 95}; 96 97struct g_raid_md_jmicron_object { 98 struct g_raid_md_object mdio_base; 99 uint32_t mdio_config_id; 100 struct jmicron_raid_conf *mdio_meta; 101 struct callout mdio_start_co; /* STARTING state timer. */ 102 int mdio_total_disks; 103 int mdio_disks_present; 104 int mdio_started; 105 int mdio_incomplete; 106 struct root_hold_token *mdio_rootmount; /* Root mount delay token. */ 107}; 108 109static g_raid_md_create_t g_raid_md_create_jmicron; 110static g_raid_md_taste_t g_raid_md_taste_jmicron; 111static g_raid_md_event_t g_raid_md_event_jmicron; 112static g_raid_md_ctl_t g_raid_md_ctl_jmicron; 113static g_raid_md_write_t g_raid_md_write_jmicron; 114static g_raid_md_fail_disk_t g_raid_md_fail_disk_jmicron; 115static g_raid_md_free_disk_t g_raid_md_free_disk_jmicron; 116static g_raid_md_free_t g_raid_md_free_jmicron; 117 118static kobj_method_t g_raid_md_jmicron_methods[] = { 119 KOBJMETHOD(g_raid_md_create, g_raid_md_create_jmicron), 120 KOBJMETHOD(g_raid_md_taste, g_raid_md_taste_jmicron), 121 KOBJMETHOD(g_raid_md_event, g_raid_md_event_jmicron), 122 KOBJMETHOD(g_raid_md_ctl, g_raid_md_ctl_jmicron), 123 KOBJMETHOD(g_raid_md_write, g_raid_md_write_jmicron), 124 KOBJMETHOD(g_raid_md_fail_disk, g_raid_md_fail_disk_jmicron), 125 KOBJMETHOD(g_raid_md_free_disk, g_raid_md_free_disk_jmicron), 126 KOBJMETHOD(g_raid_md_free, g_raid_md_free_jmicron), 127 { 0, 0 } 128}; 129 130static struct g_raid_md_class g_raid_md_jmicron_class = { 131 "JMicron", 132 g_raid_md_jmicron_methods, 133 sizeof(struct g_raid_md_jmicron_object), 134 .mdc_priority = 100 135}; 136 137static void 138g_raid_md_jmicron_print(struct jmicron_raid_conf *meta) 139{ 140 int k; 141 142 if (g_raid_debug < 1) 143 return; 144 145 printf("********* ATA JMicron RAID Metadata *********\n"); 146 printf("signature <%c%c>\n", meta->signature[0], meta->signature[1]); 147 printf("version %04x\n", meta->version); 148 printf("checksum 0x%04x\n", meta->checksum); 149 printf("disk_id 0x%08x\n", meta->disk_id); 150 printf("offset 0x%08x\n", meta->offset); 151 printf("disk_sectors_high 0x%08x\n", meta->disk_sectors_high); 152 printf("disk_sectors_low 0x%04x\n", meta->disk_sectors_low); 153 printf("name <%.16s>\n", meta->name); 154 printf("type %d\n", meta->type); 155 printf("stripe_shift %d\n", meta->stripe_shift); 156 printf("flags %04x\n", meta->flags); 157 printf("spare "); 158 for (k = 0; k < JMICRON_MAX_SPARE; k++) 159 printf(" 0x%08x", meta->spare[k]); 160 printf("\n"); 161 printf("disks "); 162 for (k = 0; k < JMICRON_MAX_DISKS; k++) 163 printf(" 0x%08x", meta->disks[k]); 164 printf("\n"); 165 printf("=================================================\n"); 166} 167 168static struct jmicron_raid_conf * 169jmicron_meta_copy(struct jmicron_raid_conf *meta) 170{ 171 struct jmicron_raid_conf *nmeta; 172 173 nmeta = malloc(sizeof(*meta), M_MD_JMICRON, M_WAITOK); 174 memcpy(nmeta, meta, sizeof(*meta)); 175 return (nmeta); 176} 177 178static int 179jmicron_meta_total_disks(struct jmicron_raid_conf *meta) 180{ 181 int pos; 182 183 for (pos = 0; pos < JMICRON_MAX_DISKS; pos++) { 184 if (meta->disks[pos] == 0) 185 break; 186 } 187 return (pos); 188} 189 190static int 191jmicron_meta_total_spare(struct jmicron_raid_conf *meta) 192{ 193 int pos, n; 194 195 n = 0; 196 for (pos = 0; pos < JMICRON_MAX_SPARE; pos++) { 197 if (meta->spare[pos] != 0) 198 n++; 199 } 200 return (n); 201} 202 203/* 204 * Generate fake Configuration ID based on disk IDs. 205 * Note: it will change after each disk set change. 206 */ 207static uint32_t 208jmicron_meta_config_id(struct jmicron_raid_conf *meta) 209{ 210 int pos; 211 uint32_t config_id; 212 213 config_id = 0; 214 for (pos = 0; pos < JMICRON_MAX_DISKS; pos++) 215 config_id += meta->disks[pos] << pos; 216 return (config_id); 217} 218 219static void 220jmicron_meta_get_name(struct jmicron_raid_conf *meta, char *buf) 221{ 222 int i; 223 224 strncpy(buf, meta->name, 16); 225 buf[16] = 0; 226 for (i = 15; i >= 0; i--) { 227 if (buf[i] > 0x20) 228 break; 229 buf[i] = 0; 230 } 231} 232 233static void 234jmicron_meta_put_name(struct jmicron_raid_conf *meta, char *buf) 235{ 236 237 memset(meta->name, 0x20, 16); 238 memcpy(meta->name, buf, MIN(strlen(buf), 16)); 239} 240 241static int 242jmicron_meta_find_disk(struct jmicron_raid_conf *meta, uint32_t id) 243{ 244 int pos; 245 246 id &= JMICRON_DISK_MASK; 247 for (pos = 0; pos < JMICRON_MAX_DISKS; pos++) { 248 if ((meta->disks[pos] & JMICRON_DISK_MASK) == id) 249 return (pos); 250 } 251 for (pos = 0; pos < JMICRON_MAX_SPARE; pos++) { 252 if ((meta->spare[pos] & JMICRON_DISK_MASK) == id) 253 return (-3); 254 } 255 return (-1); 256} 257 258static struct jmicron_raid_conf * 259jmicron_meta_read(struct g_consumer *cp) 260{ 261 struct g_provider *pp; 262 struct jmicron_raid_conf *meta; 263 char *buf; 264 int error, i; 265 uint16_t checksum, *ptr; 266 267 pp = cp->provider; 268 269 /* Read the anchor sector. */ 270 buf = g_read_data(cp, 271 pp->mediasize - pp->sectorsize, pp->sectorsize, &error); 272 if (buf == NULL) { 273 G_RAID_DEBUG(1, "Cannot read metadata from %s (error=%d).", 274 pp->name, error); 275 return (NULL); 276 } 277 meta = (struct jmicron_raid_conf *)buf; 278 279 /* Check if this is an JMicron RAID struct */ 280 if (strncmp(meta->signature, JMICRON_MAGIC, strlen(JMICRON_MAGIC))) { 281 G_RAID_DEBUG(1, "JMicron signature check failed on %s", pp->name); 282 g_free(buf); 283 return (NULL); 284 } 285 meta = malloc(sizeof(*meta), M_MD_JMICRON, M_WAITOK); 286 memcpy(meta, buf, min(sizeof(*meta), pp->sectorsize)); 287 g_free(buf); 288 289 /* Check metadata checksum. */ 290 for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i < 64; i++) 291 checksum += *ptr++; 292 if (checksum != 0) { 293 G_RAID_DEBUG(1, "JMicron checksum check failed on %s", pp->name); 294 free(meta, M_MD_JMICRON); 295 return (NULL); 296 } 297 298 return (meta); 299} 300 301static int 302jmicron_meta_write(struct g_consumer *cp, struct jmicron_raid_conf *meta) 303{ 304 struct g_provider *pp; 305 char *buf; 306 int error, i; 307 uint16_t checksum, *ptr; 308 309 pp = cp->provider; 310 311 /* Recalculate checksum for case if metadata were changed. */ 312 meta->checksum = 0; 313 for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i < 64; i++) 314 checksum += *ptr++; 315 meta->checksum -= checksum; 316 317 /* Create and fill buffer. */ 318 buf = malloc(pp->sectorsize, M_MD_JMICRON, M_WAITOK | M_ZERO); 319 memcpy(buf, meta, sizeof(*meta)); 320 321 error = g_write_data(cp, 322 pp->mediasize - pp->sectorsize, buf, pp->sectorsize); 323 if (error != 0) { 324 G_RAID_DEBUG(1, "Cannot write metadata to %s (error=%d).", 325 pp->name, error); 326 } 327 328 free(buf, M_MD_JMICRON); 329 return (error); 330} 331 332static int 333jmicron_meta_erase(struct g_consumer *cp) 334{ 335 struct g_provider *pp; 336 char *buf; 337 int error; 338 339 pp = cp->provider; 340 buf = malloc(pp->sectorsize, M_MD_JMICRON, M_WAITOK | M_ZERO); 341 error = g_write_data(cp, 342 pp->mediasize - pp->sectorsize, buf, pp->sectorsize); 343 if (error != 0) { 344 G_RAID_DEBUG(1, "Cannot erase metadata on %s (error=%d).", 345 pp->name, error); 346 } 347 free(buf, M_MD_JMICRON); 348 return (error); 349} 350 351static struct g_raid_disk * 352g_raid_md_jmicron_get_disk(struct g_raid_softc *sc, int id) 353{ 354 struct g_raid_disk *disk; 355 struct g_raid_md_jmicron_perdisk *pd; 356 357 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 358 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 359 if (pd->pd_disk_pos == id) 360 break; 361 } 362 return (disk); 363} 364 365static int 366g_raid_md_jmicron_supported(int level, int qual, int disks, int force) 367{ 368 369 if (disks > 8) 370 return (0); 371 switch (level) { 372 case G_RAID_VOLUME_RL_RAID0: 373 if (disks < 1) 374 return (0); 375 if (!force && (disks < 2 || disks > 6)) 376 return (0); 377 break; 378 case G_RAID_VOLUME_RL_RAID1: 379 if (disks < 1) 380 return (0); 381 if (!force && (disks != 2)) 382 return (0); 383 break; 384 case G_RAID_VOLUME_RL_RAID1E: 385 if (disks < 2) 386 return (0); 387 if (!force && (disks != 4)) 388 return (0); 389 break; 390 case G_RAID_VOLUME_RL_SINGLE: 391 if (disks != 1) 392 return (0); 393 if (!force) 394 return (0); 395 break; 396 case G_RAID_VOLUME_RL_CONCAT: 397 if (disks < 2) 398 return (0); 399 break; 400 case G_RAID_VOLUME_RL_RAID5: 401 if (disks < 3) 402 return (0); 403 if (qual != G_RAID_VOLUME_RLQ_R5LA) 404 return (0); 405 if (!force) 406 return (0); 407 break; 408 default: 409 return (0); 410 } 411 if (level != G_RAID_VOLUME_RL_RAID5 && qual != G_RAID_VOLUME_RLQ_NONE) 412 return (0); 413 return (1); 414} 415 416static int 417g_raid_md_jmicron_start_disk(struct g_raid_disk *disk) 418{ 419 struct g_raid_softc *sc; 420 struct g_raid_subdisk *sd, *tmpsd; 421 struct g_raid_disk *olddisk, *tmpdisk; 422 struct g_raid_md_object *md; 423 struct g_raid_md_jmicron_object *mdi; 424 struct g_raid_md_jmicron_perdisk *pd, *oldpd; 425 struct jmicron_raid_conf *meta; 426 int disk_pos, resurrection = 0; 427 428 sc = disk->d_softc; 429 md = sc->sc_md; 430 mdi = (struct g_raid_md_jmicron_object *)md; 431 meta = mdi->mdio_meta; 432 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 433 olddisk = NULL; 434 435 /* Find disk position in metadata by it's serial. */ 436 if (pd->pd_meta != NULL) 437 disk_pos = jmicron_meta_find_disk(meta, pd->pd_disk_id); 438 else 439 disk_pos = -1; 440 if (disk_pos < 0) { 441 G_RAID_DEBUG1(1, sc, "Unknown, probably new or stale disk"); 442 /* If we are in the start process, that's all for now. */ 443 if (!mdi->mdio_started) 444 goto nofit; 445 /* 446 * If we have already started - try to get use of the disk. 447 * Try to replace OFFLINE disks first, then FAILED. 448 */ 449 TAILQ_FOREACH(tmpdisk, &sc->sc_disks, d_next) { 450 if (tmpdisk->d_state != G_RAID_DISK_S_OFFLINE && 451 tmpdisk->d_state != G_RAID_DISK_S_FAILED) 452 continue; 453 /* Make sure this disk is big enough. */ 454 TAILQ_FOREACH(sd, &tmpdisk->d_subdisks, sd_next) { 455 if (sd->sd_offset + sd->sd_size + 512 > 456 pd->pd_disk_size) { 457 G_RAID_DEBUG1(1, sc, 458 "Disk too small (%ju < %ju)", 459 pd->pd_disk_size, 460 sd->sd_offset + sd->sd_size + 512); 461 break; 462 } 463 } 464 if (sd != NULL) 465 continue; 466 if (tmpdisk->d_state == G_RAID_DISK_S_OFFLINE) { 467 olddisk = tmpdisk; 468 break; 469 } else if (olddisk == NULL) 470 olddisk = tmpdisk; 471 } 472 if (olddisk == NULL) { 473nofit: 474 if (disk_pos == -3 || pd->pd_disk_pos == -3) { 475 g_raid_change_disk_state(disk, 476 G_RAID_DISK_S_SPARE); 477 return (1); 478 } else { 479 g_raid_change_disk_state(disk, 480 G_RAID_DISK_S_STALE); 481 return (0); 482 } 483 } 484 oldpd = (struct g_raid_md_jmicron_perdisk *)olddisk->d_md_data; 485 disk_pos = oldpd->pd_disk_pos; 486 resurrection = 1; 487 } 488 489 if (olddisk == NULL) { 490 /* Find placeholder by position. */ 491 olddisk = g_raid_md_jmicron_get_disk(sc, disk_pos); 492 if (olddisk == NULL) 493 panic("No disk at position %d!", disk_pos); 494 if (olddisk->d_state != G_RAID_DISK_S_OFFLINE) { 495 G_RAID_DEBUG1(1, sc, "More then one disk for pos %d", 496 disk_pos); 497 g_raid_change_disk_state(disk, G_RAID_DISK_S_STALE); 498 return (0); 499 } 500 oldpd = (struct g_raid_md_jmicron_perdisk *)olddisk->d_md_data; 501 } 502 503 /* Replace failed disk or placeholder with new disk. */ 504 TAILQ_FOREACH_SAFE(sd, &olddisk->d_subdisks, sd_next, tmpsd) { 505 TAILQ_REMOVE(&olddisk->d_subdisks, sd, sd_next); 506 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 507 sd->sd_disk = disk; 508 } 509 oldpd->pd_disk_pos = -2; 510 pd->pd_disk_pos = disk_pos; 511 /* Update global metadata just in case. */ 512 meta->disks[disk_pos] = pd->pd_disk_id; 513 514 /* If it was placeholder -- destroy it. */ 515 if (olddisk->d_state == G_RAID_DISK_S_OFFLINE) { 516 g_raid_destroy_disk(olddisk); 517 } else { 518 /* Otherwise, make it STALE_FAILED. */ 519 g_raid_change_disk_state(olddisk, G_RAID_DISK_S_STALE_FAILED); 520 } 521 522 /* Welcome the new disk. */ 523 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE); 524 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 525 526 /* 527 * Different disks may have different sizes/offsets, 528 * especially in concat mode. Update. 529 */ 530 if (!resurrection) { 531 sd->sd_offset = 532 (off_t)pd->pd_meta->offset * 16 * 512; //ZZZ 533 sd->sd_size = 534 (((off_t)pd->pd_meta->disk_sectors_high << 16) + 535 pd->pd_meta->disk_sectors_low) * 512; 536 } 537 538 if (resurrection) { 539 /* Stale disk, almost same as new. */ 540 g_raid_change_subdisk_state(sd, 541 G_RAID_SUBDISK_S_NEW); 542 } else if ((meta->flags & JMICRON_F_BADSEC) != 0 && 543 (pd->pd_meta->flags & JMICRON_F_BADSEC) == 0) { 544 /* Cold-inserted or rebuilding disk. */ 545 g_raid_change_subdisk_state(sd, 546 G_RAID_SUBDISK_S_NEW); 547 } else if (pd->pd_meta->flags & JMICRON_F_UNSYNC) { 548 /* Dirty or resyncing disk.. */ 549 g_raid_change_subdisk_state(sd, 550 G_RAID_SUBDISK_S_STALE); 551 } else { 552 /* Up to date disk. */ 553 g_raid_change_subdisk_state(sd, 554 G_RAID_SUBDISK_S_ACTIVE); 555 } 556 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 557 G_RAID_EVENT_SUBDISK); 558 } 559 560 /* Update status of our need for spare. */ 561 if (mdi->mdio_started) { 562 mdi->mdio_incomplete = 563 (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < 564 mdi->mdio_total_disks); 565 } 566 567 return (resurrection); 568} 569 570static void 571g_disk_md_jmicron_retaste(void *arg, int pending) 572{ 573 574 G_RAID_DEBUG(1, "Array is not complete, trying to retaste."); 575 g_retaste(&g_raid_class); 576 free(arg, M_MD_JMICRON); 577} 578 579static void 580g_raid_md_jmicron_refill(struct g_raid_softc *sc) 581{ 582 struct g_raid_md_object *md; 583 struct g_raid_md_jmicron_object *mdi; 584 struct g_raid_disk *disk; 585 struct task *task; 586 int update, na; 587 588 md = sc->sc_md; 589 mdi = (struct g_raid_md_jmicron_object *)md; 590 update = 0; 591 do { 592 /* Make sure we miss anything. */ 593 na = g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE); 594 if (na == mdi->mdio_total_disks) 595 break; 596 597 G_RAID_DEBUG1(1, md->mdo_softc, 598 "Array is not complete (%d of %d), " 599 "trying to refill.", na, mdi->mdio_total_disks); 600 601 /* Try to get use some of STALE disks. */ 602 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 603 if (disk->d_state == G_RAID_DISK_S_STALE) { 604 update += g_raid_md_jmicron_start_disk(disk); 605 if (disk->d_state == G_RAID_DISK_S_ACTIVE) 606 break; 607 } 608 } 609 if (disk != NULL) 610 continue; 611 612 /* Try to get use some of SPARE disks. */ 613 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 614 if (disk->d_state == G_RAID_DISK_S_SPARE) { 615 update += g_raid_md_jmicron_start_disk(disk); 616 if (disk->d_state == G_RAID_DISK_S_ACTIVE) 617 break; 618 } 619 } 620 } while (disk != NULL); 621 622 /* Write new metadata if we changed something. */ 623 if (update) 624 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 625 626 /* Update status of our need for spare. */ 627 mdi->mdio_incomplete = (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < 628 mdi->mdio_total_disks); 629 630 /* Request retaste hoping to find spare. */ 631 if (mdi->mdio_incomplete) { 632 task = malloc(sizeof(struct task), 633 M_MD_JMICRON, M_WAITOK | M_ZERO); 634 TASK_INIT(task, 0, g_disk_md_jmicron_retaste, task); 635 taskqueue_enqueue(taskqueue_swi, task); 636 } 637} 638 639static void 640g_raid_md_jmicron_start(struct g_raid_softc *sc) 641{ 642 struct g_raid_md_object *md; 643 struct g_raid_md_jmicron_object *mdi; 644 struct g_raid_md_jmicron_perdisk *pd; 645 struct jmicron_raid_conf *meta; 646 struct g_raid_volume *vol; 647 struct g_raid_subdisk *sd; 648 struct g_raid_disk *disk; 649 off_t size; 650 int j, disk_pos; 651 char buf[17]; 652 653 md = sc->sc_md; 654 mdi = (struct g_raid_md_jmicron_object *)md; 655 meta = mdi->mdio_meta; 656 657 /* Create volumes and subdisks. */ 658 jmicron_meta_get_name(meta, buf); 659 vol = g_raid_create_volume(sc, buf, -1); 660 size = ((off_t)meta->disk_sectors_high << 16) + meta->disk_sectors_low; 661 size *= 512; //ZZZ 662 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_NONE; 663 if (meta->type == JMICRON_T_RAID0) { 664 vol->v_raid_level = G_RAID_VOLUME_RL_RAID0; 665 vol->v_mediasize = size * mdi->mdio_total_disks; 666 } else if (meta->type == JMICRON_T_RAID1) { 667 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1; 668 vol->v_mediasize = size; 669 } else if (meta->type == JMICRON_T_RAID01) { 670 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1E; 671 vol->v_mediasize = size * mdi->mdio_total_disks / 2; 672 } else if (meta->type == JMICRON_T_CONCAT) { 673 if (mdi->mdio_total_disks == 1) 674 vol->v_raid_level = G_RAID_VOLUME_RL_SINGLE; 675 else 676 vol->v_raid_level = G_RAID_VOLUME_RL_CONCAT; 677 vol->v_mediasize = 0; 678 } else if (meta->type == JMICRON_T_RAID5) { 679 vol->v_raid_level = G_RAID_VOLUME_RL_RAID5; 680 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_R5LA; 681 vol->v_mediasize = size * (mdi->mdio_total_disks - 1); 682 } else { 683 vol->v_raid_level = G_RAID_VOLUME_RL_UNKNOWN; 684 vol->v_mediasize = 0; 685 } 686 vol->v_strip_size = 1024 << meta->stripe_shift; //ZZZ 687 vol->v_disks_count = mdi->mdio_total_disks; 688 vol->v_sectorsize = 512; //ZZZ 689 for (j = 0; j < vol->v_disks_count; j++) { 690 sd = &vol->v_subdisks[j]; 691 sd->sd_offset = (off_t)meta->offset * 16 * 512; //ZZZ 692 sd->sd_size = size; 693 } 694 g_raid_start_volume(vol); 695 696 /* Create disk placeholders to store data for later writing. */ 697 for (disk_pos = 0; disk_pos < mdi->mdio_total_disks; disk_pos++) { 698 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 699 pd->pd_disk_pos = disk_pos; 700 pd->pd_disk_id = meta->disks[disk_pos]; 701 disk = g_raid_create_disk(sc); 702 disk->d_md_data = (void *)pd; 703 disk->d_state = G_RAID_DISK_S_OFFLINE; 704 sd = &vol->v_subdisks[disk_pos]; 705 sd->sd_disk = disk; 706 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 707 } 708 709 /* Make all disks found till the moment take their places. */ 710 do { 711 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 712 if (disk->d_state == G_RAID_DISK_S_NONE) { 713 g_raid_md_jmicron_start_disk(disk); 714 break; 715 } 716 } 717 } while (disk != NULL); 718 719 mdi->mdio_started = 1; 720 G_RAID_DEBUG1(0, sc, "Array started."); 721 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 722 723 /* Pickup any STALE/SPARE disks to refill array if needed. */ 724 g_raid_md_jmicron_refill(sc); 725 726 g_raid_event_send(vol, G_RAID_VOLUME_E_START, G_RAID_EVENT_VOLUME); 727 728 callout_stop(&mdi->mdio_start_co); 729 G_RAID_DEBUG1(1, sc, "root_mount_rel %p", mdi->mdio_rootmount); 730 root_mount_rel(mdi->mdio_rootmount); 731 mdi->mdio_rootmount = NULL; 732} 733 734static void 735g_raid_md_jmicron_new_disk(struct g_raid_disk *disk) 736{ 737 struct g_raid_softc *sc; 738 struct g_raid_md_object *md; 739 struct g_raid_md_jmicron_object *mdi; 740 struct jmicron_raid_conf *pdmeta; 741 struct g_raid_md_jmicron_perdisk *pd; 742 743 sc = disk->d_softc; 744 md = sc->sc_md; 745 mdi = (struct g_raid_md_jmicron_object *)md; 746 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 747 pdmeta = pd->pd_meta; 748 749 if (mdi->mdio_started) { 750 if (g_raid_md_jmicron_start_disk(disk)) 751 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 752 } else { 753 /* 754 * If we haven't started yet - update common metadata 755 * to get subdisks details, avoiding data from spare disks. 756 */ 757 if (mdi->mdio_meta == NULL || 758 jmicron_meta_find_disk(mdi->mdio_meta, 759 mdi->mdio_meta->disk_id) == -3) { 760 if (mdi->mdio_meta != NULL) 761 free(mdi->mdio_meta, M_MD_JMICRON); 762 mdi->mdio_meta = jmicron_meta_copy(pdmeta); 763 mdi->mdio_total_disks = jmicron_meta_total_disks(pdmeta); 764 } 765 mdi->mdio_meta->flags |= pdmeta->flags & JMICRON_F_BADSEC; 766 767 mdi->mdio_disks_present++; 768 G_RAID_DEBUG1(1, sc, "Matching disk (%d of %d+%d up)", 769 mdi->mdio_disks_present, 770 mdi->mdio_total_disks, 771 jmicron_meta_total_spare(mdi->mdio_meta)); 772 773 /* If we collected all needed disks - start array. */ 774 if (mdi->mdio_disks_present == mdi->mdio_total_disks + 775 jmicron_meta_total_spare(mdi->mdio_meta)) 776 g_raid_md_jmicron_start(sc); 777 } 778} 779 780static void 781g_raid_jmicron_go(void *arg) 782{ 783 struct g_raid_softc *sc; 784 struct g_raid_md_object *md; 785 struct g_raid_md_jmicron_object *mdi; 786 787 sc = arg; 788 md = sc->sc_md; 789 mdi = (struct g_raid_md_jmicron_object *)md; 790 if (!mdi->mdio_started) { 791 G_RAID_DEBUG1(0, sc, "Force array start due to timeout."); 792 g_raid_event_send(sc, G_RAID_NODE_E_START, 0); 793 } 794} 795 796static int 797g_raid_md_create_jmicron(struct g_raid_md_object *md, struct g_class *mp, 798 struct g_geom **gp) 799{ 800 struct g_raid_softc *sc; 801 struct g_raid_md_jmicron_object *mdi; 802 char name[16]; 803 804 mdi = (struct g_raid_md_jmicron_object *)md; 805 mdi->mdio_config_id = arc4random(); 806 snprintf(name, sizeof(name), "JMicron-%08x", mdi->mdio_config_id); 807 sc = g_raid_create_node(mp, name, md); 808 if (sc == NULL) 809 return (G_RAID_MD_TASTE_FAIL); 810 md->mdo_softc = sc; 811 *gp = sc->sc_geom; 812 return (G_RAID_MD_TASTE_NEW); 813} 814 815static int 816g_raid_md_taste_jmicron(struct g_raid_md_object *md, struct g_class *mp, 817 struct g_consumer *cp, struct g_geom **gp) 818{ 819 struct g_consumer *rcp; 820 struct g_provider *pp; 821 struct g_raid_md_jmicron_object *mdi, *mdi1; 822 struct g_raid_softc *sc; 823 struct g_raid_disk *disk; 824 struct jmicron_raid_conf *meta; 825 struct g_raid_md_jmicron_perdisk *pd; 826 struct g_geom *geom; 827 int error, disk_pos, result, spare, len; 828 char name[16]; 829 uint16_t vendor; 830 831 G_RAID_DEBUG(1, "Tasting JMicron on %s", cp->provider->name); 832 mdi = (struct g_raid_md_jmicron_object *)md; 833 pp = cp->provider; 834 835 /* Read metadata from device. */ 836 meta = NULL; 837 vendor = 0xffff; 838 if (g_access(cp, 1, 0, 0) != 0) 839 return (G_RAID_MD_TASTE_FAIL); 840 g_topology_unlock(); 841 len = 2; 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 g_access(cp, -1, 0, 0); 847 if (meta == NULL) { 848 if (g_raid_aggressive_spare) { 849 if (vendor == 0x197b) { 850 G_RAID_DEBUG(1, 851 "No JMicron metadata, forcing spare."); 852 spare = 2; 853 goto search; 854 } else { 855 G_RAID_DEBUG(1, 856 "JMicron vendor mismatch 0x%04x != 0x197b", 857 vendor); 858 } 859 } 860 return (G_RAID_MD_TASTE_FAIL); 861 } 862 863 /* Check this disk position in obtained metadata. */ 864 disk_pos = jmicron_meta_find_disk(meta, meta->disk_id); 865 if (disk_pos == -1) { 866 G_RAID_DEBUG(1, "JMicron disk_id %08x not found", 867 meta->disk_id); 868 goto fail1; 869 } 870 871 /* Metadata valid. Print it. */ 872 g_raid_md_jmicron_print(meta); 873 G_RAID_DEBUG(1, "JMicron disk position %d", disk_pos); 874 spare = (disk_pos == -2) ? 1 : 0; 875 876search: 877 /* Search for matching node. */ 878 sc = NULL; 879 mdi1 = NULL; 880 LIST_FOREACH(geom, &mp->geom, geom) { 881 sc = geom->softc; 882 if (sc == NULL) 883 continue; 884 if (sc->sc_stopping != 0) 885 continue; 886 if (sc->sc_md->mdo_class != md->mdo_class) 887 continue; 888 mdi1 = (struct g_raid_md_jmicron_object *)sc->sc_md; 889 if (spare == 2) { 890 if (mdi1->mdio_incomplete) 891 break; 892 } else { 893 if (mdi1->mdio_config_id == 894 jmicron_meta_config_id(meta)) 895 break; 896 } 897 } 898 899 /* Found matching node. */ 900 if (geom != NULL) { 901 G_RAID_DEBUG(1, "Found matching array %s", sc->sc_name); 902 result = G_RAID_MD_TASTE_EXISTING; 903 904 } else if (spare) { /* Not found needy node -- left for later. */ 905 G_RAID_DEBUG(1, "Spare is not needed at this time"); 906 goto fail1; 907 908 } else { /* Not found matching node -- create one. */ 909 result = G_RAID_MD_TASTE_NEW; 910 mdi->mdio_config_id = jmicron_meta_config_id(meta); 911 snprintf(name, sizeof(name), "JMicron-%08x", 912 mdi->mdio_config_id); 913 sc = g_raid_create_node(mp, name, md); 914 md->mdo_softc = sc; 915 geom = sc->sc_geom; 916 callout_init(&mdi->mdio_start_co, 1); 917 callout_reset(&mdi->mdio_start_co, g_raid_start_timeout * hz, 918 g_raid_jmicron_go, sc); 919 mdi->mdio_rootmount = root_mount_hold("GRAID-JMicron"); 920 G_RAID_DEBUG1(1, sc, "root_mount_hold %p", mdi->mdio_rootmount); 921 } 922 923 rcp = g_new_consumer(geom); 924 g_attach(rcp, pp); 925 if (g_access(rcp, 1, 1, 1) != 0) 926 ; //goto fail1; 927 928 g_topology_unlock(); 929 sx_xlock(&sc->sc_lock); 930 931 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 932 pd->pd_meta = meta; 933 if (spare == 2) { 934 pd->pd_disk_pos = -3; 935 pd->pd_disk_id = arc4random() & JMICRON_DISK_MASK; 936 } else { 937 pd->pd_disk_pos = -1; 938 pd->pd_disk_id = meta->disk_id; 939 } 940 pd->pd_disk_size = pp->mediasize; 941 disk = g_raid_create_disk(sc); 942 disk->d_md_data = (void *)pd; 943 disk->d_consumer = rcp; 944 rcp->private = disk; 945 946 /* Read kernel dumping information. */ 947 disk->d_kd.offset = 0; 948 disk->d_kd.length = OFF_MAX; 949 len = sizeof(disk->d_kd); 950 error = g_io_getattr("GEOM::kerneldump", rcp, &len, &disk->d_kd); 951 if (disk->d_kd.di.dumper == NULL) 952 G_RAID_DEBUG1(2, sc, "Dumping not supported by %s: %d.", 953 rcp->provider->name, error); 954 955 g_raid_md_jmicron_new_disk(disk); 956 957 sx_xunlock(&sc->sc_lock); 958 g_topology_lock(); 959 *gp = geom; 960 return (result); 961fail1: 962 free(meta, M_MD_JMICRON); 963 return (G_RAID_MD_TASTE_FAIL); 964} 965 966static int 967g_raid_md_event_jmicron(struct g_raid_md_object *md, 968 struct g_raid_disk *disk, u_int event) 969{ 970 struct g_raid_softc *sc; 971 struct g_raid_subdisk *sd; 972 struct g_raid_md_jmicron_object *mdi; 973 struct g_raid_md_jmicron_perdisk *pd; 974 975 sc = md->mdo_softc; 976 mdi = (struct g_raid_md_jmicron_object *)md; 977 if (disk == NULL) { 978 switch (event) { 979 case G_RAID_NODE_E_START: 980 if (!mdi->mdio_started) 981 g_raid_md_jmicron_start(sc); 982 return (0); 983 } 984 return (-1); 985 } 986 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 987 switch (event) { 988 case G_RAID_DISK_E_DISCONNECTED: 989 /* If disk was assigned, just update statuses. */ 990 if (pd->pd_disk_pos >= 0) { 991 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 992 if (disk->d_consumer) { 993 g_raid_kill_consumer(sc, disk->d_consumer); 994 disk->d_consumer = NULL; 995 } 996 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 997 g_raid_change_subdisk_state(sd, 998 G_RAID_SUBDISK_S_NONE); 999 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED, 1000 G_RAID_EVENT_SUBDISK); 1001 } 1002 } else { 1003 /* Otherwise -- delete. */ 1004 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 1005 g_raid_destroy_disk(disk); 1006 } 1007 1008 /* Write updated metadata to all disks. */ 1009 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1010 1011 /* Check if anything left except placeholders. */ 1012 if (g_raid_ndisks(sc, -1) == 1013 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1014 g_raid_destroy_node(sc, 0); 1015 else 1016 g_raid_md_jmicron_refill(sc); 1017 return (0); 1018 } 1019 return (-2); 1020} 1021 1022static int 1023g_raid_md_ctl_jmicron(struct g_raid_md_object *md, 1024 struct gctl_req *req) 1025{ 1026 struct g_raid_softc *sc; 1027 struct g_raid_volume *vol; 1028 struct g_raid_subdisk *sd; 1029 struct g_raid_disk *disk; 1030 struct g_raid_md_jmicron_object *mdi; 1031 struct g_raid_md_jmicron_perdisk *pd; 1032 struct g_consumer *cp; 1033 struct g_provider *pp; 1034 char arg[16]; 1035 const char *verb, *volname, *levelname, *diskname; 1036 int *nargs, *force; 1037 off_t size, sectorsize, strip; 1038 intmax_t *sizearg, *striparg; 1039 int numdisks, i, len, level, qual, update; 1040 int error; 1041 1042 sc = md->mdo_softc; 1043 mdi = (struct g_raid_md_jmicron_object *)md; 1044 verb = gctl_get_param(req, "verb", NULL); 1045 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 1046 error = 0; 1047 if (strcmp(verb, "label") == 0) { 1048 1049 if (*nargs < 4) { 1050 gctl_error(req, "Invalid number of arguments."); 1051 return (-1); 1052 } 1053 volname = gctl_get_asciiparam(req, "arg1"); 1054 if (volname == NULL) { 1055 gctl_error(req, "No volume name."); 1056 return (-2); 1057 } 1058 levelname = gctl_get_asciiparam(req, "arg2"); 1059 if (levelname == NULL) { 1060 gctl_error(req, "No RAID level."); 1061 return (-3); 1062 } 1063 if (strcasecmp(levelname, "RAID5") == 0) 1064 levelname = "RAID5LA"; 1065 if (g_raid_volume_str2level(levelname, &level, &qual)) { 1066 gctl_error(req, "Unknown RAID level '%s'.", levelname); 1067 return (-4); 1068 } 1069 numdisks = *nargs - 3; 1070 force = gctl_get_paraml(req, "force", sizeof(*force)); 1071 if (!g_raid_md_jmicron_supported(level, qual, numdisks, 1072 force ? *force : 0)) { 1073 gctl_error(req, "Unsupported RAID level " 1074 "(0x%02x/0x%02x), or number of disks (%d).", 1075 level, qual, numdisks); 1076 return (-5); 1077 } 1078 1079 /* Search for disks, connect them and probe. */ 1080 size = 0x7fffffffffffffffllu; 1081 sectorsize = 0; 1082 for (i = 0; i < numdisks; i++) { 1083 snprintf(arg, sizeof(arg), "arg%d", i + 3); 1084 diskname = gctl_get_asciiparam(req, arg); 1085 if (diskname == NULL) { 1086 gctl_error(req, "No disk name (%s).", arg); 1087 error = -6; 1088 break; 1089 } 1090 if (strcmp(diskname, "NONE") == 0) { 1091 cp = NULL; 1092 pp = NULL; 1093 } else { 1094 g_topology_lock(); 1095 cp = g_raid_open_consumer(sc, diskname); 1096 if (cp == NULL) { 1097 gctl_error(req, "Can't open '%s'.", 1098 diskname); 1099 g_topology_unlock(); 1100 error = -7; 1101 break; 1102 } 1103 pp = cp->provider; 1104 } 1105 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 1106 pd->pd_disk_pos = i; 1107 pd->pd_disk_id = arc4random() & JMICRON_DISK_MASK; 1108 disk = g_raid_create_disk(sc); 1109 disk->d_md_data = (void *)pd; 1110 disk->d_consumer = cp; 1111 if (cp == NULL) 1112 continue; 1113 cp->private = disk; 1114 g_topology_unlock(); 1115 1116 /* Read kernel dumping information. */ 1117 disk->d_kd.offset = 0; 1118 disk->d_kd.length = OFF_MAX; 1119 len = sizeof(disk->d_kd); 1120 g_io_getattr("GEOM::kerneldump", cp, &len, &disk->d_kd); 1121 if (disk->d_kd.di.dumper == NULL) 1122 G_RAID_DEBUG1(2, sc, 1123 "Dumping not supported by %s.", 1124 cp->provider->name); 1125 1126 pd->pd_disk_size = pp->mediasize; 1127 if (size > pp->mediasize) 1128 size = pp->mediasize; 1129 if (sectorsize < pp->sectorsize) 1130 sectorsize = pp->sectorsize; 1131 } 1132 if (error != 0) 1133 return (error); 1134 1135 if (sectorsize <= 0) { 1136 gctl_error(req, "Can't get sector size."); 1137 return (-8); 1138 } 1139 1140 /* Reserve space for metadata. */ 1141 size -= sectorsize; 1142 1143 /* Handle size argument. */ 1144 len = sizeof(*sizearg); 1145 sizearg = gctl_get_param(req, "size", &len); 1146 if (sizearg != NULL && len == sizeof(*sizearg) && 1147 *sizearg > 0) { 1148 if (*sizearg > size) { 1149 gctl_error(req, "Size too big %lld > %lld.", 1150 (long long)*sizearg, (long long)size); 1151 return (-9); 1152 } 1153 size = *sizearg; 1154 } 1155 1156 /* Handle strip argument. */ 1157 strip = 131072; 1158 len = sizeof(*striparg); 1159 striparg = gctl_get_param(req, "strip", &len); 1160 if (striparg != NULL && len == sizeof(*striparg) && 1161 *striparg > 0) { 1162 if (*striparg < sectorsize) { 1163 gctl_error(req, "Strip size too small."); 1164 return (-10); 1165 } 1166 if (*striparg % sectorsize != 0) { 1167 gctl_error(req, "Incorrect strip size."); 1168 return (-11); 1169 } 1170 if (strip > 65535 * sectorsize) { 1171 gctl_error(req, "Strip size too big."); 1172 return (-12); 1173 } 1174 strip = *striparg; 1175 } 1176 1177 /* Round size down to strip or sector. */ 1178 if (level == G_RAID_VOLUME_RL_RAID1) 1179 size -= (size % sectorsize); 1180 else if (level == G_RAID_VOLUME_RL_RAID1E && 1181 (numdisks & 1) != 0) 1182 size -= (size % (2 * strip)); 1183 else 1184 size -= (size % strip); 1185 if (size <= 0) { 1186 gctl_error(req, "Size too small."); 1187 return (-13); 1188 } 1189 if (size > 0xffffffffffffllu * sectorsize) { 1190 gctl_error(req, "Size too big."); 1191 return (-14); 1192 } 1193 1194 /* We have all we need, create things: volume, ... */ 1195 mdi->mdio_total_disks = numdisks; 1196 mdi->mdio_started = 1; 1197 vol = g_raid_create_volume(sc, volname, -1); 1198 vol->v_md_data = (void *)(intptr_t)0; 1199 vol->v_raid_level = level; 1200 vol->v_raid_level_qualifier = qual; 1201 vol->v_strip_size = strip; 1202 vol->v_disks_count = numdisks; 1203 if (level == G_RAID_VOLUME_RL_RAID0 || 1204 level == G_RAID_VOLUME_RL_CONCAT || 1205 level == G_RAID_VOLUME_RL_SINGLE) 1206 vol->v_mediasize = size * numdisks; 1207 else if (level == G_RAID_VOLUME_RL_RAID1) 1208 vol->v_mediasize = size; 1209 else if (level == G_RAID_VOLUME_RL_RAID5) 1210 vol->v_mediasize = size * (numdisks - 1); 1211 else { /* RAID1E */ 1212 vol->v_mediasize = ((size * numdisks) / strip / 2) * 1213 strip; 1214 } 1215 vol->v_sectorsize = sectorsize; 1216 g_raid_start_volume(vol); 1217 1218 /* , and subdisks. */ 1219 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1220 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1221 sd = &vol->v_subdisks[pd->pd_disk_pos]; 1222 sd->sd_disk = disk; 1223 sd->sd_offset = 0; 1224 sd->sd_size = size; 1225 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 1226 if (sd->sd_disk->d_consumer != NULL) { 1227 g_raid_change_disk_state(disk, 1228 G_RAID_DISK_S_ACTIVE); 1229 g_raid_change_subdisk_state(sd, 1230 G_RAID_SUBDISK_S_ACTIVE); 1231 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 1232 G_RAID_EVENT_SUBDISK); 1233 } else { 1234 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1235 } 1236 } 1237 1238 /* Write metadata based on created entities. */ 1239 G_RAID_DEBUG1(0, sc, "Array started."); 1240 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1241 1242 /* Pickup any STALE/SPARE disks to refill array if needed. */ 1243 g_raid_md_jmicron_refill(sc); 1244 1245 g_raid_event_send(vol, G_RAID_VOLUME_E_START, 1246 G_RAID_EVENT_VOLUME); 1247 return (0); 1248 } 1249 if (strcmp(verb, "delete") == 0) { 1250 1251 /* Check if some volume is still open. */ 1252 force = gctl_get_paraml(req, "force", sizeof(*force)); 1253 if (force != NULL && *force == 0 && 1254 g_raid_nopens(sc) != 0) { 1255 gctl_error(req, "Some volume is still open."); 1256 return (-4); 1257 } 1258 1259 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1260 if (disk->d_consumer) 1261 jmicron_meta_erase(disk->d_consumer); 1262 } 1263 g_raid_destroy_node(sc, 0); 1264 return (0); 1265 } 1266 if (strcmp(verb, "remove") == 0 || 1267 strcmp(verb, "fail") == 0) { 1268 if (*nargs < 2) { 1269 gctl_error(req, "Invalid number of arguments."); 1270 return (-1); 1271 } 1272 for (i = 1; i < *nargs; i++) { 1273 snprintf(arg, sizeof(arg), "arg%d", i); 1274 diskname = gctl_get_asciiparam(req, arg); 1275 if (diskname == NULL) { 1276 gctl_error(req, "No disk name (%s).", arg); 1277 error = -2; 1278 break; 1279 } 1280 if (strncmp(diskname, "/dev/", 5) == 0) 1281 diskname += 5; 1282 1283 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1284 if (disk->d_consumer != NULL && 1285 disk->d_consumer->provider != NULL && 1286 strcmp(disk->d_consumer->provider->name, 1287 diskname) == 0) 1288 break; 1289 } 1290 if (disk == NULL) { 1291 gctl_error(req, "Disk '%s' not found.", 1292 diskname); 1293 error = -3; 1294 break; 1295 } 1296 1297 if (strcmp(verb, "fail") == 0) { 1298 g_raid_md_fail_disk_jmicron(md, NULL, disk); 1299 continue; 1300 } 1301 1302 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1303 1304 /* Erase metadata on deleting disk. */ 1305 jmicron_meta_erase(disk->d_consumer); 1306 1307 /* If disk was assigned, just update statuses. */ 1308 if (pd->pd_disk_pos >= 0) { 1309 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1310 g_raid_kill_consumer(sc, disk->d_consumer); 1311 disk->d_consumer = NULL; 1312 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 1313 g_raid_change_subdisk_state(sd, 1314 G_RAID_SUBDISK_S_NONE); 1315 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED, 1316 G_RAID_EVENT_SUBDISK); 1317 } 1318 } else { 1319 /* Otherwise -- delete. */ 1320 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 1321 g_raid_destroy_disk(disk); 1322 } 1323 } 1324 1325 /* Write updated metadata to remaining disks. */ 1326 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1327 1328 /* Check if anything left except placeholders. */ 1329 if (g_raid_ndisks(sc, -1) == 1330 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1331 g_raid_destroy_node(sc, 0); 1332 else 1333 g_raid_md_jmicron_refill(sc); 1334 return (error); 1335 } 1336 if (strcmp(verb, "insert") == 0) { 1337 if (*nargs < 2) { 1338 gctl_error(req, "Invalid number of arguments."); 1339 return (-1); 1340 } 1341 update = 0; 1342 for (i = 1; i < *nargs; i++) { 1343 /* Get disk name. */ 1344 snprintf(arg, sizeof(arg), "arg%d", i); 1345 diskname = gctl_get_asciiparam(req, arg); 1346 if (diskname == NULL) { 1347 gctl_error(req, "No disk name (%s).", arg); 1348 error = -3; 1349 break; 1350 } 1351 1352 /* Try to find provider with specified name. */ 1353 g_topology_lock(); 1354 cp = g_raid_open_consumer(sc, diskname); 1355 if (cp == NULL) { 1356 gctl_error(req, "Can't open disk '%s'.", 1357 diskname); 1358 g_topology_unlock(); 1359 error = -4; 1360 break; 1361 } 1362 pp = cp->provider; 1363 1364 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 1365 pd->pd_disk_pos = -3; 1366 pd->pd_disk_id = arc4random() & JMICRON_DISK_MASK; 1367 pd->pd_disk_size = pp->mediasize; 1368 1369 disk = g_raid_create_disk(sc); 1370 disk->d_consumer = cp; 1371 disk->d_md_data = (void *)pd; 1372 cp->private = disk; 1373 g_topology_unlock(); 1374 1375 /* Read kernel dumping information. */ 1376 disk->d_kd.offset = 0; 1377 disk->d_kd.length = OFF_MAX; 1378 len = sizeof(disk->d_kd); 1379 g_io_getattr("GEOM::kerneldump", cp, &len, &disk->d_kd); 1380 if (disk->d_kd.di.dumper == NULL) 1381 G_RAID_DEBUG1(2, sc, 1382 "Dumping not supported by %s.", 1383 cp->provider->name); 1384 1385 /* Welcome the "new" disk. */ 1386 update += g_raid_md_jmicron_start_disk(disk); 1387 if (disk->d_state != G_RAID_DISK_S_ACTIVE && 1388 disk->d_state != G_RAID_DISK_S_SPARE) { 1389 gctl_error(req, "Disk '%s' doesn't fit.", 1390 diskname); 1391 g_raid_destroy_disk(disk); 1392 error = -8; 1393 break; 1394 } 1395 } 1396 1397 /* Write new metadata if we changed something. */ 1398 if (update) 1399 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1400 return (error); 1401 } 1402 gctl_error(req, "Command '%s' is not supported.", verb); 1403 return (-100); 1404} 1405 1406static int 1407g_raid_md_write_jmicron(struct g_raid_md_object *md, struct g_raid_volume *tvol, 1408 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1409{ 1410 struct g_raid_softc *sc; 1411 struct g_raid_volume *vol; 1412 struct g_raid_subdisk *sd; 1413 struct g_raid_disk *disk; 1414 struct g_raid_md_jmicron_object *mdi; 1415 struct g_raid_md_jmicron_perdisk *pd; 1416 struct jmicron_raid_conf *meta; 1417 int i, spares; 1418 1419 sc = md->mdo_softc; 1420 mdi = (struct g_raid_md_jmicron_object *)md; 1421 1422 if (sc->sc_stopping == G_RAID_DESTROY_HARD) 1423 return (0); 1424 1425 /* There is only one volume. */ 1426 vol = TAILQ_FIRST(&sc->sc_volumes); 1427 1428 /* Fill global fields. */ 1429 meta = malloc(sizeof(*meta), M_MD_JMICRON, M_WAITOK | M_ZERO); 1430 strncpy(meta->signature, JMICRON_MAGIC, 2); 1431 meta->version = JMICRON_VERSION; 1432 jmicron_meta_put_name(meta, vol->v_name); 1433 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID0) 1434 meta->type = JMICRON_T_RAID0; 1435 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) 1436 meta->type = JMICRON_T_RAID1; 1437 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) 1438 meta->type = JMICRON_T_RAID01; 1439 else if (vol->v_raid_level == G_RAID_VOLUME_RL_CONCAT || 1440 vol->v_raid_level == G_RAID_VOLUME_RL_SINGLE) 1441 meta->type = JMICRON_T_CONCAT; 1442 else 1443 meta->type = JMICRON_T_RAID5; 1444 meta->stripe_shift = fls(vol->v_strip_size / 2048); 1445 meta->flags = JMICRON_F_READY | JMICRON_F_BOOTABLE; 1446 for (i = 0; i < vol->v_disks_count; i++) { 1447 sd = &vol->v_subdisks[i]; 1448 if (sd->sd_disk == NULL || sd->sd_disk->d_md_data == NULL) 1449 meta->disks[i] = 0xffffffff; 1450 else { 1451 pd = (struct g_raid_md_jmicron_perdisk *) 1452 sd->sd_disk->d_md_data; 1453 meta->disks[i] = pd->pd_disk_id; 1454 } 1455 if (sd->sd_state < G_RAID_SUBDISK_S_STALE) 1456 meta->flags |= JMICRON_F_BADSEC; 1457 if (vol->v_dirty) 1458 meta->flags |= JMICRON_F_UNSYNC; 1459 } 1460 1461 /* Put spares to their slots. */ 1462 spares = 0; 1463 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1464 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1465 if (disk->d_state != G_RAID_DISK_S_SPARE) 1466 continue; 1467 meta->spare[spares] = pd->pd_disk_id; 1468 if (++spares >= 2) 1469 break; 1470 } 1471 1472 /* We are done. Print meta data and store them to disks. */ 1473 if (mdi->mdio_meta != NULL) 1474 free(mdi->mdio_meta, M_MD_JMICRON); 1475 mdi->mdio_meta = meta; 1476 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1477 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1478 if (disk->d_state != G_RAID_DISK_S_ACTIVE && 1479 disk->d_state != G_RAID_DISK_S_SPARE) 1480 continue; 1481 if (pd->pd_meta != NULL) { 1482 free(pd->pd_meta, M_MD_JMICRON); 1483 pd->pd_meta = NULL; 1484 } 1485 pd->pd_meta = jmicron_meta_copy(meta); 1486 pd->pd_meta->disk_id = pd->pd_disk_id; 1487 if ((sd = TAILQ_FIRST(&disk->d_subdisks)) != NULL) { 1488 pd->pd_meta->offset = 1489 (sd->sd_offset / 512) / 16; 1490 pd->pd_meta->disk_sectors_high = 1491 (sd->sd_size / 512) >> 16; 1492 pd->pd_meta->disk_sectors_low = 1493 (sd->sd_size / 512) & 0xffff; 1494 if (sd->sd_state < G_RAID_SUBDISK_S_STALE) 1495 pd->pd_meta->flags &= ~JMICRON_F_BADSEC; 1496 else if (sd->sd_state < G_RAID_SUBDISK_S_ACTIVE) 1497 pd->pd_meta->flags |= JMICRON_F_UNSYNC; 1498 } 1499 G_RAID_DEBUG(1, "Writing JMicron metadata to %s", 1500 g_raid_get_diskname(disk)); 1501 g_raid_md_jmicron_print(pd->pd_meta); 1502 jmicron_meta_write(disk->d_consumer, pd->pd_meta); 1503 } 1504 return (0); 1505} 1506 1507static int 1508g_raid_md_fail_disk_jmicron(struct g_raid_md_object *md, 1509 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1510{ 1511 struct g_raid_softc *sc; 1512 struct g_raid_md_jmicron_perdisk *pd; 1513 struct g_raid_subdisk *sd; 1514 1515 sc = md->mdo_softc; 1516 pd = (struct g_raid_md_jmicron_perdisk *)tdisk->d_md_data; 1517 1518 /* We can't fail disk that is not a part of array now. */ 1519 if (pd->pd_disk_pos < 0) 1520 return (-1); 1521 1522 if (tdisk->d_consumer) 1523 jmicron_meta_erase(tdisk->d_consumer); 1524 1525 /* Change states. */ 1526 g_raid_change_disk_state(tdisk, G_RAID_DISK_S_FAILED); 1527 TAILQ_FOREACH(sd, &tdisk->d_subdisks, sd_next) { 1528 g_raid_change_subdisk_state(sd, 1529 G_RAID_SUBDISK_S_FAILED); 1530 g_raid_event_send(sd, G_RAID_SUBDISK_E_FAILED, 1531 G_RAID_EVENT_SUBDISK); 1532 } 1533 1534 /* Write updated metadata to remaining disks. */ 1535 g_raid_md_write_jmicron(md, NULL, NULL, tdisk); 1536 1537 /* Check if anything left except placeholders. */ 1538 if (g_raid_ndisks(sc, -1) == 1539 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1540 g_raid_destroy_node(sc, 0); 1541 else 1542 g_raid_md_jmicron_refill(sc); 1543 return (0); 1544} 1545 1546static int 1547g_raid_md_free_disk_jmicron(struct g_raid_md_object *md, 1548 struct g_raid_disk *disk) 1549{ 1550 struct g_raid_md_jmicron_perdisk *pd; 1551 1552 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1553 if (pd->pd_meta != NULL) { 1554 free(pd->pd_meta, M_MD_JMICRON); 1555 pd->pd_meta = NULL; 1556 } 1557 free(pd, M_MD_JMICRON); 1558 disk->d_md_data = NULL; 1559 return (0); 1560} 1561 1562static int 1563g_raid_md_free_jmicron(struct g_raid_md_object *md) 1564{ 1565 struct g_raid_md_jmicron_object *mdi; 1566 1567 mdi = (struct g_raid_md_jmicron_object *)md; 1568 if (!mdi->mdio_started) { 1569 mdi->mdio_started = 0; 1570 callout_stop(&mdi->mdio_start_co); 1571 G_RAID_DEBUG1(1, md->mdo_softc, 1572 "root_mount_rel %p", mdi->mdio_rootmount); 1573 root_mount_rel(mdi->mdio_rootmount); 1574 mdi->mdio_rootmount = NULL; 1575 } 1576 if (mdi->mdio_meta != NULL) { 1577 free(mdi->mdio_meta, M_MD_JMICRON); 1578 mdi->mdio_meta = NULL; 1579 } 1580 return (0); 1581} 1582 1583G_RAID_MD_DECLARE(g_raid_md_jmicron); 1584