md_jmicron.c revision 220210
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 220210 2011-03-31 16:19:53Z 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 (!force) 404 return (0); 405 break; 406 default: 407 return (0); 408 } 409 if (qual != G_RAID_VOLUME_RLQ_NONE) 410 return (0); 411 return (1); 412} 413 414static int 415g_raid_md_jmicron_start_disk(struct g_raid_disk *disk) 416{ 417 struct g_raid_softc *sc; 418 struct g_raid_subdisk *sd, *tmpsd; 419 struct g_raid_disk *olddisk, *tmpdisk; 420 struct g_raid_md_object *md; 421 struct g_raid_md_jmicron_object *mdi; 422 struct g_raid_md_jmicron_perdisk *pd, *oldpd; 423 struct jmicron_raid_conf *meta; 424 int disk_pos, resurrection = 0; 425 426 sc = disk->d_softc; 427 md = sc->sc_md; 428 mdi = (struct g_raid_md_jmicron_object *)md; 429 meta = mdi->mdio_meta; 430 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 431 olddisk = NULL; 432 433 /* Find disk position in metadata by it's serial. */ 434 if (pd->pd_meta != NULL) 435 disk_pos = jmicron_meta_find_disk(meta, pd->pd_disk_id); 436 else 437 disk_pos = -1; 438 if (disk_pos < 0) { 439 G_RAID_DEBUG1(1, sc, "Unknown, probably new or stale disk"); 440 /* If we are in the start process, that's all for now. */ 441 if (!mdi->mdio_started) 442 goto nofit; 443 /* 444 * If we have already started - try to get use of the disk. 445 * Try to replace OFFLINE disks first, then FAILED. 446 */ 447 TAILQ_FOREACH(tmpdisk, &sc->sc_disks, d_next) { 448 if (tmpdisk->d_state != G_RAID_DISK_S_OFFLINE && 449 tmpdisk->d_state != G_RAID_DISK_S_FAILED) 450 continue; 451 /* Make sure this disk is big enough. */ 452 TAILQ_FOREACH(sd, &tmpdisk->d_subdisks, sd_next) { 453 if (sd->sd_offset + sd->sd_size + 512 > 454 pd->pd_disk_size) { 455 G_RAID_DEBUG1(1, sc, 456 "Disk too small (%ju < %ju)", 457 pd->pd_disk_size, 458 sd->sd_offset + sd->sd_size + 512); 459 break; 460 } 461 } 462 if (sd != NULL) 463 continue; 464 if (tmpdisk->d_state == G_RAID_DISK_S_OFFLINE) { 465 olddisk = tmpdisk; 466 break; 467 } else if (olddisk == NULL) 468 olddisk = tmpdisk; 469 } 470 if (olddisk == NULL) { 471nofit: 472 if (disk_pos == -3 || pd->pd_disk_pos == -3) { 473 g_raid_change_disk_state(disk, 474 G_RAID_DISK_S_SPARE); 475 return (1); 476 } else { 477 g_raid_change_disk_state(disk, 478 G_RAID_DISK_S_STALE); 479 return (0); 480 } 481 } 482 oldpd = (struct g_raid_md_jmicron_perdisk *)olddisk->d_md_data; 483 disk_pos = oldpd->pd_disk_pos; 484 resurrection = 1; 485 } 486 487 if (olddisk == NULL) { 488 /* Find placeholder by position. */ 489 olddisk = g_raid_md_jmicron_get_disk(sc, disk_pos); 490 if (olddisk == NULL) 491 panic("No disk at position %d!", disk_pos); 492 if (olddisk->d_state != G_RAID_DISK_S_OFFLINE) { 493 G_RAID_DEBUG1(1, sc, "More then one disk for pos %d", 494 disk_pos); 495 g_raid_change_disk_state(disk, G_RAID_DISK_S_STALE); 496 return (0); 497 } 498 oldpd = (struct g_raid_md_jmicron_perdisk *)olddisk->d_md_data; 499 } 500 501 /* Replace failed disk or placeholder with new disk. */ 502 TAILQ_FOREACH_SAFE(sd, &olddisk->d_subdisks, sd_next, tmpsd) { 503 TAILQ_REMOVE(&olddisk->d_subdisks, sd, sd_next); 504 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 505 sd->sd_disk = disk; 506 } 507 oldpd->pd_disk_pos = -2; 508 pd->pd_disk_pos = disk_pos; 509 /* Update global metadata just in case. */ 510 meta->disks[disk_pos] = pd->pd_disk_id; 511 512 /* If it was placeholder -- destroy it. */ 513 if (olddisk->d_state == G_RAID_DISK_S_OFFLINE) { 514 g_raid_destroy_disk(olddisk); 515 } else { 516 /* Otherwise, make it STALE_FAILED. */ 517 g_raid_change_disk_state(olddisk, G_RAID_DISK_S_STALE_FAILED); 518 } 519 520 /* Welcome the new disk. */ 521 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE); 522 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 523 524 /* 525 * Different disks may have different sizes/offsets, 526 * especially in concat mode. Update. 527 */ 528 if (!resurrection) { 529 sd->sd_offset = 530 (off_t)pd->pd_meta->offset * 16 * 512; //ZZZ 531 sd->sd_size = 532 (((off_t)pd->pd_meta->disk_sectors_high << 16) + 533 pd->pd_meta->disk_sectors_low) * 512; 534 } 535 536 if (resurrection) { 537 /* Stale disk, almost same as new. */ 538 g_raid_change_subdisk_state(sd, 539 G_RAID_SUBDISK_S_NEW); 540 } else if ((meta->flags & JMICRON_F_BADSEC) != 0 && 541 (pd->pd_meta->flags & JMICRON_F_BADSEC) == 0) { 542 /* Cold-inserted or rebuilding disk. */ 543 g_raid_change_subdisk_state(sd, 544 G_RAID_SUBDISK_S_NEW); 545 } else if (pd->pd_meta->flags & JMICRON_F_UNSYNC) { 546 /* Dirty or resyncing disk.. */ 547 g_raid_change_subdisk_state(sd, 548 G_RAID_SUBDISK_S_STALE); 549 } else { 550 /* Up to date disk. */ 551 g_raid_change_subdisk_state(sd, 552 G_RAID_SUBDISK_S_ACTIVE); 553 } 554 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 555 G_RAID_EVENT_SUBDISK); 556 } 557 558 /* Update status of our need for spare. */ 559 if (mdi->mdio_started) { 560 mdi->mdio_incomplete = 561 (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < 562 mdi->mdio_total_disks); 563 } 564 565 return (resurrection); 566} 567 568static void 569g_disk_md_jmicron_retaste(void *arg, int pending) 570{ 571 572 G_RAID_DEBUG(1, "Array is not complete, trying to retaste."); 573 g_retaste(&g_raid_class); 574 free(arg, M_MD_JMICRON); 575} 576 577static void 578g_raid_md_jmicron_refill(struct g_raid_softc *sc) 579{ 580 struct g_raid_md_object *md; 581 struct g_raid_md_jmicron_object *mdi; 582 struct g_raid_disk *disk; 583 struct task *task; 584 int update, na; 585 586 md = sc->sc_md; 587 mdi = (struct g_raid_md_jmicron_object *)md; 588 update = 0; 589 do { 590 /* Make sure we miss anything. */ 591 na = g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE); 592 if (na == mdi->mdio_total_disks) 593 break; 594 595 G_RAID_DEBUG1(1, md->mdo_softc, 596 "Array is not complete (%d of %d), " 597 "trying to refill.", na, mdi->mdio_total_disks); 598 599 /* Try to get use some of STALE disks. */ 600 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 601 if (disk->d_state == G_RAID_DISK_S_STALE) { 602 update += g_raid_md_jmicron_start_disk(disk); 603 if (disk->d_state == G_RAID_DISK_S_ACTIVE) 604 break; 605 } 606 } 607 if (disk != NULL) 608 continue; 609 610 /* Try to get use some of SPARE disks. */ 611 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 612 if (disk->d_state == G_RAID_DISK_S_SPARE) { 613 update += g_raid_md_jmicron_start_disk(disk); 614 if (disk->d_state == G_RAID_DISK_S_ACTIVE) 615 break; 616 } 617 } 618 } while (disk != NULL); 619 620 /* Write new metadata if we changed something. */ 621 if (update) 622 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 623 624 /* Update status of our need for spare. */ 625 mdi->mdio_incomplete = (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < 626 mdi->mdio_total_disks); 627 628 /* Request retaste hoping to find spare. */ 629 if (mdi->mdio_incomplete) { 630 task = malloc(sizeof(struct task), 631 M_MD_JMICRON, M_WAITOK | M_ZERO); 632 TASK_INIT(task, 0, g_disk_md_jmicron_retaste, task); 633 taskqueue_enqueue(taskqueue_swi, task); 634 } 635} 636 637static void 638g_raid_md_jmicron_start(struct g_raid_softc *sc) 639{ 640 struct g_raid_md_object *md; 641 struct g_raid_md_jmicron_object *mdi; 642 struct g_raid_md_jmicron_perdisk *pd; 643 struct jmicron_raid_conf *meta; 644 struct g_raid_volume *vol; 645 struct g_raid_subdisk *sd; 646 struct g_raid_disk *disk; 647 off_t size; 648 int j, disk_pos; 649 char buf[17]; 650 651 md = sc->sc_md; 652 mdi = (struct g_raid_md_jmicron_object *)md; 653 meta = mdi->mdio_meta; 654 655 /* Create volumes and subdisks. */ 656 jmicron_meta_get_name(meta, buf); 657 vol = g_raid_create_volume(sc, buf, -1); 658 size = ((off_t)meta->disk_sectors_high << 16) + meta->disk_sectors_low; 659 size *= 512; //ZZZ 660 if (meta->type == JMICRON_T_RAID0) { 661 vol->v_raid_level = G_RAID_VOLUME_RL_RAID0; 662 vol->v_mediasize = size * mdi->mdio_total_disks; 663 } else if (meta->type == JMICRON_T_RAID1) { 664 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1; 665 vol->v_mediasize = size; 666 } else if (meta->type == JMICRON_T_RAID01) { 667 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1E; 668 vol->v_mediasize = size * mdi->mdio_total_disks / 2; 669 } else if (meta->type == JMICRON_T_CONCAT) { 670 if (mdi->mdio_total_disks == 1) 671 vol->v_raid_level = G_RAID_VOLUME_RL_SINGLE; 672 else 673 vol->v_raid_level = G_RAID_VOLUME_RL_CONCAT; 674 vol->v_mediasize = 0; 675 } else if (meta->type == JMICRON_T_RAID5) { 676 vol->v_raid_level = G_RAID_VOLUME_RL_RAID5; 677 vol->v_mediasize = size * (mdi->mdio_total_disks - 1); 678 } else { 679 vol->v_raid_level = G_RAID_VOLUME_RL_UNKNOWN; 680 vol->v_mediasize = 0; 681 } 682 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_NONE; 683 vol->v_strip_size = 1024 << meta->stripe_shift; //ZZZ 684 vol->v_disks_count = mdi->mdio_total_disks; 685 vol->v_sectorsize = 512; //ZZZ 686 for (j = 0; j < vol->v_disks_count; j++) { 687 sd = &vol->v_subdisks[j]; 688 sd->sd_offset = (off_t)meta->offset * 16 * 512; //ZZZ 689 sd->sd_size = size; 690 } 691 g_raid_start_volume(vol); 692 693 /* Create disk placeholders to store data for later writing. */ 694 for (disk_pos = 0; disk_pos < mdi->mdio_total_disks; disk_pos++) { 695 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 696 pd->pd_disk_pos = disk_pos; 697 pd->pd_disk_id = meta->disks[disk_pos]; 698 disk = g_raid_create_disk(sc); 699 disk->d_md_data = (void *)pd; 700 disk->d_state = G_RAID_DISK_S_OFFLINE; 701 sd = &vol->v_subdisks[disk_pos]; 702 sd->sd_disk = disk; 703 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 704 } 705 706 /* Make all disks found till the moment take their places. */ 707 do { 708 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 709 if (disk->d_state == G_RAID_DISK_S_NONE) { 710 g_raid_md_jmicron_start_disk(disk); 711 break; 712 } 713 } 714 } while (disk != NULL); 715 716 mdi->mdio_started = 1; 717 G_RAID_DEBUG1(0, sc, "Array started."); 718 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 719 720 /* Pickup any STALE/SPARE disks to refill array if needed. */ 721 g_raid_md_jmicron_refill(sc); 722 723 g_raid_event_send(vol, G_RAID_VOLUME_E_START, G_RAID_EVENT_VOLUME); 724 725 callout_stop(&mdi->mdio_start_co); 726 G_RAID_DEBUG1(1, sc, "root_mount_rel %p", mdi->mdio_rootmount); 727 root_mount_rel(mdi->mdio_rootmount); 728 mdi->mdio_rootmount = NULL; 729} 730 731static void 732g_raid_md_jmicron_new_disk(struct g_raid_disk *disk) 733{ 734 struct g_raid_softc *sc; 735 struct g_raid_md_object *md; 736 struct g_raid_md_jmicron_object *mdi; 737 struct jmicron_raid_conf *pdmeta; 738 struct g_raid_md_jmicron_perdisk *pd; 739 740 sc = disk->d_softc; 741 md = sc->sc_md; 742 mdi = (struct g_raid_md_jmicron_object *)md; 743 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 744 pdmeta = pd->pd_meta; 745 746 if (mdi->mdio_started) { 747 if (g_raid_md_jmicron_start_disk(disk)) 748 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 749 } else { 750 /* 751 * If we haven't started yet - update common metadata 752 * to get subdisks details, avoiding data from spare disks. 753 */ 754 if (mdi->mdio_meta == NULL || 755 jmicron_meta_find_disk(mdi->mdio_meta, 756 mdi->mdio_meta->disk_id) == -3) { 757 if (mdi->mdio_meta != NULL) 758 free(mdi->mdio_meta, M_MD_JMICRON); 759 mdi->mdio_meta = jmicron_meta_copy(pdmeta); 760 mdi->mdio_total_disks = jmicron_meta_total_disks(pdmeta); 761 } 762 mdi->mdio_meta->flags |= pdmeta->flags & JMICRON_F_BADSEC; 763 764 mdi->mdio_disks_present++; 765 G_RAID_DEBUG1(1, sc, "Matching disk (%d of %d+%d up)", 766 mdi->mdio_disks_present, 767 mdi->mdio_total_disks, 768 jmicron_meta_total_spare(mdi->mdio_meta)); 769 770 /* If we collected all needed disks - start array. */ 771 if (mdi->mdio_disks_present == mdi->mdio_total_disks + 772 jmicron_meta_total_spare(mdi->mdio_meta)) 773 g_raid_md_jmicron_start(sc); 774 } 775} 776 777static void 778g_raid_jmicron_go(void *arg) 779{ 780 struct g_raid_softc *sc; 781 struct g_raid_md_object *md; 782 struct g_raid_md_jmicron_object *mdi; 783 784 sc = arg; 785 md = sc->sc_md; 786 mdi = (struct g_raid_md_jmicron_object *)md; 787 if (!mdi->mdio_started) { 788 G_RAID_DEBUG1(0, sc, "Force array start due to timeout."); 789 g_raid_event_send(sc, G_RAID_NODE_E_START, 0); 790 } 791} 792 793static int 794g_raid_md_create_jmicron(struct g_raid_md_object *md, struct g_class *mp, 795 struct g_geom **gp) 796{ 797 struct g_raid_softc *sc; 798 struct g_raid_md_jmicron_object *mdi; 799 char name[16]; 800 801 mdi = (struct g_raid_md_jmicron_object *)md; 802 mdi->mdio_config_id = arc4random(); 803 snprintf(name, sizeof(name), "JMicron-%08x", mdi->mdio_config_id); 804 sc = g_raid_create_node(mp, name, md); 805 if (sc == NULL) 806 return (G_RAID_MD_TASTE_FAIL); 807 md->mdo_softc = sc; 808 *gp = sc->sc_geom; 809 return (G_RAID_MD_TASTE_NEW); 810} 811 812static int 813g_raid_md_taste_jmicron(struct g_raid_md_object *md, struct g_class *mp, 814 struct g_consumer *cp, struct g_geom **gp) 815{ 816 struct g_consumer *rcp; 817 struct g_provider *pp; 818 struct g_raid_md_jmicron_object *mdi, *mdi1; 819 struct g_raid_softc *sc; 820 struct g_raid_disk *disk; 821 struct jmicron_raid_conf *meta; 822 struct g_raid_md_jmicron_perdisk *pd; 823 struct g_geom *geom; 824 int error, disk_pos, result, spare, len; 825 char name[16]; 826 uint16_t vendor; 827 828 G_RAID_DEBUG(1, "Tasting JMicron on %s", cp->provider->name); 829 mdi = (struct g_raid_md_jmicron_object *)md; 830 pp = cp->provider; 831 832 /* Read metadata from device. */ 833 meta = NULL; 834 vendor = 0xffff; 835 if (g_access(cp, 1, 0, 0) != 0) 836 return (G_RAID_MD_TASTE_FAIL); 837 g_topology_unlock(); 838 len = 2; 839 if (pp->geom->rank == 1) 840 g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor); 841 meta = jmicron_meta_read(cp); 842 g_topology_lock(); 843 g_access(cp, -1, 0, 0); 844 if (meta == NULL) { 845 if (g_raid_aggressive_spare) { 846 if (vendor == 0x197b) { 847 G_RAID_DEBUG(1, 848 "No JMicron metadata, forcing spare."); 849 spare = 2; 850 goto search; 851 } else { 852 G_RAID_DEBUG(1, 853 "JMicron vendor mismatch 0x%04x != 0x197b", 854 vendor); 855 } 856 } 857 return (G_RAID_MD_TASTE_FAIL); 858 } 859 860 /* Check this disk position in obtained metadata. */ 861 disk_pos = jmicron_meta_find_disk(meta, meta->disk_id); 862 if (disk_pos == -1) { 863 G_RAID_DEBUG(1, "JMicron disk_id %08x not found", 864 meta->disk_id); 865 goto fail1; 866 } 867 868 /* Metadata valid. Print it. */ 869 g_raid_md_jmicron_print(meta); 870 G_RAID_DEBUG(1, "JMicron disk position %d", disk_pos); 871 spare = (disk_pos == -2) ? 1 : 0; 872 873search: 874 /* Search for matching node. */ 875 sc = NULL; 876 mdi1 = NULL; 877 LIST_FOREACH(geom, &mp->geom, geom) { 878 sc = geom->softc; 879 if (sc == NULL) 880 continue; 881 if (sc->sc_stopping != 0) 882 continue; 883 if (sc->sc_md->mdo_class != md->mdo_class) 884 continue; 885 mdi1 = (struct g_raid_md_jmicron_object *)sc->sc_md; 886 if (spare == 2) { 887 if (mdi1->mdio_incomplete) 888 break; 889 } else { 890 if (mdi1->mdio_config_id == 891 jmicron_meta_config_id(meta)) 892 break; 893 } 894 } 895 896 /* Found matching node. */ 897 if (geom != NULL) { 898 G_RAID_DEBUG(1, "Found matching array %s", sc->sc_name); 899 result = G_RAID_MD_TASTE_EXISTING; 900 901 } else if (spare) { /* Not found needy node -- left for later. */ 902 G_RAID_DEBUG(1, "Spare is not needed at this time"); 903 goto fail1; 904 905 } else { /* Not found matching node -- create one. */ 906 result = G_RAID_MD_TASTE_NEW; 907 mdi->mdio_config_id = jmicron_meta_config_id(meta); 908 snprintf(name, sizeof(name), "JMicron-%08x", 909 mdi->mdio_config_id); 910 sc = g_raid_create_node(mp, name, md); 911 md->mdo_softc = sc; 912 geom = sc->sc_geom; 913 callout_init(&mdi->mdio_start_co, 1); 914 callout_reset(&mdi->mdio_start_co, g_raid_start_timeout * hz, 915 g_raid_jmicron_go, sc); 916 mdi->mdio_rootmount = root_mount_hold("GRAID-JMicron"); 917 G_RAID_DEBUG1(1, sc, "root_mount_hold %p", mdi->mdio_rootmount); 918 } 919 920 rcp = g_new_consumer(geom); 921 g_attach(rcp, pp); 922 if (g_access(rcp, 1, 1, 1) != 0) 923 ; //goto fail1; 924 925 g_topology_unlock(); 926 sx_xlock(&sc->sc_lock); 927 928 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 929 pd->pd_meta = meta; 930 if (spare == 2) { 931 pd->pd_disk_pos = -3; 932 pd->pd_disk_id = arc4random() & JMICRON_DISK_MASK; 933 } else { 934 pd->pd_disk_pos = -1; 935 pd->pd_disk_id = meta->disk_id; 936 } 937 pd->pd_disk_size = pp->mediasize; 938 disk = g_raid_create_disk(sc); 939 disk->d_md_data = (void *)pd; 940 disk->d_consumer = rcp; 941 rcp->private = disk; 942 943 /* Read kernel dumping information. */ 944 disk->d_kd.offset = 0; 945 disk->d_kd.length = OFF_MAX; 946 len = sizeof(disk->d_kd); 947 error = g_io_getattr("GEOM::kerneldump", rcp, &len, &disk->d_kd); 948 if (disk->d_kd.di.dumper == NULL) 949 G_RAID_DEBUG1(2, sc, "Dumping not supported by %s: %d.", 950 rcp->provider->name, error); 951 952 g_raid_md_jmicron_new_disk(disk); 953 954 sx_xunlock(&sc->sc_lock); 955 g_topology_lock(); 956 *gp = geom; 957 return (result); 958fail1: 959 free(meta, M_MD_JMICRON); 960 return (G_RAID_MD_TASTE_FAIL); 961} 962 963static int 964g_raid_md_event_jmicron(struct g_raid_md_object *md, 965 struct g_raid_disk *disk, u_int event) 966{ 967 struct g_raid_softc *sc; 968 struct g_raid_subdisk *sd; 969 struct g_raid_md_jmicron_object *mdi; 970 struct g_raid_md_jmicron_perdisk *pd; 971 972 sc = md->mdo_softc; 973 mdi = (struct g_raid_md_jmicron_object *)md; 974 if (disk == NULL) { 975 switch (event) { 976 case G_RAID_NODE_E_START: 977 if (!mdi->mdio_started) 978 g_raid_md_jmicron_start(sc); 979 return (0); 980 } 981 return (-1); 982 } 983 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 984 switch (event) { 985 case G_RAID_DISK_E_DISCONNECTED: 986 /* If disk was assigned, just update statuses. */ 987 if (pd->pd_disk_pos >= 0) { 988 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 989 if (disk->d_consumer) { 990 g_raid_kill_consumer(sc, disk->d_consumer); 991 disk->d_consumer = NULL; 992 } 993 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 994 g_raid_change_subdisk_state(sd, 995 G_RAID_SUBDISK_S_NONE); 996 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED, 997 G_RAID_EVENT_SUBDISK); 998 } 999 } else { 1000 /* Otherwise -- delete. */ 1001 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 1002 g_raid_destroy_disk(disk); 1003 } 1004 1005 /* Write updated metadata to all disks. */ 1006 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1007 1008 /* Check if anything left except placeholders. */ 1009 if (g_raid_ndisks(sc, -1) == 1010 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1011 g_raid_destroy_node(sc, 0); 1012 else 1013 g_raid_md_jmicron_refill(sc); 1014 return (0); 1015 } 1016 return (-2); 1017} 1018 1019static int 1020g_raid_md_ctl_jmicron(struct g_raid_md_object *md, 1021 struct gctl_req *req) 1022{ 1023 struct g_raid_softc *sc; 1024 struct g_raid_volume *vol; 1025 struct g_raid_subdisk *sd; 1026 struct g_raid_disk *disk; 1027 struct g_raid_md_jmicron_object *mdi; 1028 struct g_raid_md_jmicron_perdisk *pd; 1029 struct g_consumer *cp; 1030 struct g_provider *pp; 1031 char arg[16]; 1032 const char *verb, *volname, *levelname, *diskname; 1033 int *nargs, *force; 1034 off_t size, sectorsize, strip; 1035 intmax_t *sizearg, *striparg; 1036 int numdisks, i, len, level, qual, update; 1037 int error; 1038 1039 sc = md->mdo_softc; 1040 mdi = (struct g_raid_md_jmicron_object *)md; 1041 verb = gctl_get_param(req, "verb", NULL); 1042 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 1043 error = 0; 1044 if (strcmp(verb, "label") == 0) { 1045 1046 if (*nargs < 4) { 1047 gctl_error(req, "Invalid number of arguments."); 1048 return (-1); 1049 } 1050 volname = gctl_get_asciiparam(req, "arg1"); 1051 if (volname == NULL) { 1052 gctl_error(req, "No volume name."); 1053 return (-2); 1054 } 1055 levelname = gctl_get_asciiparam(req, "arg2"); 1056 if (levelname == NULL) { 1057 gctl_error(req, "No RAID level."); 1058 return (-3); 1059 } 1060 if (g_raid_volume_str2level(levelname, &level, &qual)) { 1061 gctl_error(req, "Unknown RAID level '%s'.", levelname); 1062 return (-4); 1063 } 1064 numdisks = *nargs - 3; 1065 force = gctl_get_paraml(req, "force", sizeof(*force)); 1066 if (!g_raid_md_jmicron_supported(level, qual, numdisks, 1067 force ? *force : 0)) { 1068 gctl_error(req, "Unsupported RAID level " 1069 "(0x%02x/0x%02x), or number of disks (%d).", 1070 level, qual, numdisks); 1071 return (-5); 1072 } 1073 1074 /* Search for disks, connect them and probe. */ 1075 size = 0x7fffffffffffffffllu; 1076 sectorsize = 0; 1077 for (i = 0; i < numdisks; i++) { 1078 snprintf(arg, sizeof(arg), "arg%d", i + 3); 1079 diskname = gctl_get_asciiparam(req, arg); 1080 if (diskname == NULL) { 1081 gctl_error(req, "No disk name (%s).", arg); 1082 error = -6; 1083 break; 1084 } 1085 if (strcmp(diskname, "NONE") == 0) { 1086 cp = NULL; 1087 pp = NULL; 1088 } else { 1089 g_topology_lock(); 1090 cp = g_raid_open_consumer(sc, diskname); 1091 if (cp == NULL) { 1092 gctl_error(req, "Can't open '%s'.", 1093 diskname); 1094 g_topology_unlock(); 1095 error = -7; 1096 break; 1097 } 1098 pp = cp->provider; 1099 } 1100 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 1101 pd->pd_disk_pos = i; 1102 pd->pd_disk_id = arc4random() & JMICRON_DISK_MASK; 1103 disk = g_raid_create_disk(sc); 1104 disk->d_md_data = (void *)pd; 1105 disk->d_consumer = cp; 1106 if (cp == NULL) 1107 continue; 1108 cp->private = disk; 1109 g_topology_unlock(); 1110 1111 /* Read kernel dumping information. */ 1112 disk->d_kd.offset = 0; 1113 disk->d_kd.length = OFF_MAX; 1114 len = sizeof(disk->d_kd); 1115 g_io_getattr("GEOM::kerneldump", cp, &len, &disk->d_kd); 1116 if (disk->d_kd.di.dumper == NULL) 1117 G_RAID_DEBUG1(2, sc, 1118 "Dumping not supported by %s.", 1119 cp->provider->name); 1120 1121 pd->pd_disk_size = pp->mediasize; 1122 if (size > pp->mediasize) 1123 size = pp->mediasize; 1124 if (sectorsize < pp->sectorsize) 1125 sectorsize = pp->sectorsize; 1126 } 1127 if (error != 0) 1128 return (error); 1129 1130 if (sectorsize <= 0) { 1131 gctl_error(req, "Can't get sector size."); 1132 return (-8); 1133 } 1134 1135 /* Reserve space for metadata. */ 1136 size -= sectorsize; 1137 1138 /* Handle size argument. */ 1139 len = sizeof(*sizearg); 1140 sizearg = gctl_get_param(req, "size", &len); 1141 if (sizearg != NULL && len == sizeof(*sizearg) && 1142 *sizearg > 0) { 1143 if (*sizearg > size) { 1144 gctl_error(req, "Size too big %lld > %lld.", 1145 (long long)*sizearg, (long long)size); 1146 return (-9); 1147 } 1148 size = *sizearg; 1149 } 1150 1151 /* Handle strip argument. */ 1152 strip = 131072; 1153 len = sizeof(*striparg); 1154 striparg = gctl_get_param(req, "strip", &len); 1155 if (striparg != NULL && len == sizeof(*striparg) && 1156 *striparg > 0) { 1157 if (*striparg < sectorsize) { 1158 gctl_error(req, "Strip size too small."); 1159 return (-10); 1160 } 1161 if (*striparg % sectorsize != 0) { 1162 gctl_error(req, "Incorrect strip size."); 1163 return (-11); 1164 } 1165 if (strip > 65535 * sectorsize) { 1166 gctl_error(req, "Strip size too big."); 1167 return (-12); 1168 } 1169 strip = *striparg; 1170 } 1171 1172 /* Round size down to strip or sector. */ 1173 if (level == G_RAID_VOLUME_RL_RAID1) 1174 size -= (size % sectorsize); 1175 else if (level == G_RAID_VOLUME_RL_RAID1E && 1176 (numdisks & 1) != 0) 1177 size -= (size % (2 * strip)); 1178 else 1179 size -= (size % strip); 1180 if (size <= 0) { 1181 gctl_error(req, "Size too small."); 1182 return (-13); 1183 } 1184 if (size > 0xffffffffffffllu * sectorsize) { 1185 gctl_error(req, "Size too big."); 1186 return (-14); 1187 } 1188 1189 /* We have all we need, create things: volume, ... */ 1190 mdi->mdio_total_disks = numdisks; 1191 mdi->mdio_started = 1; 1192 vol = g_raid_create_volume(sc, volname, -1); 1193 vol->v_md_data = (void *)(intptr_t)0; 1194 vol->v_raid_level = level; 1195 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_NONE; 1196 vol->v_strip_size = strip; 1197 vol->v_disks_count = numdisks; 1198 if (level == G_RAID_VOLUME_RL_RAID0 || 1199 level == G_RAID_VOLUME_RL_CONCAT || 1200 level == G_RAID_VOLUME_RL_SINGLE) 1201 vol->v_mediasize = size * numdisks; 1202 else if (level == G_RAID_VOLUME_RL_RAID1) 1203 vol->v_mediasize = size; 1204 else if (level == G_RAID_VOLUME_RL_RAID5) 1205 vol->v_mediasize = size * (numdisks - 1); 1206 else { /* RAID1E */ 1207 vol->v_mediasize = ((size * numdisks) / strip / 2) * 1208 strip; 1209 } 1210 vol->v_sectorsize = sectorsize; 1211 g_raid_start_volume(vol); 1212 1213 /* , and subdisks. */ 1214 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1215 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1216 sd = &vol->v_subdisks[pd->pd_disk_pos]; 1217 sd->sd_disk = disk; 1218 sd->sd_offset = 0; 1219 sd->sd_size = size; 1220 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 1221 if (sd->sd_disk->d_consumer != NULL) { 1222 g_raid_change_disk_state(disk, 1223 G_RAID_DISK_S_ACTIVE); 1224 g_raid_change_subdisk_state(sd, 1225 G_RAID_SUBDISK_S_ACTIVE); 1226 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 1227 G_RAID_EVENT_SUBDISK); 1228 } else { 1229 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1230 } 1231 } 1232 1233 /* Write metadata based on created entities. */ 1234 G_RAID_DEBUG1(0, sc, "Array started."); 1235 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1236 1237 /* Pickup any STALE/SPARE disks to refill array if needed. */ 1238 g_raid_md_jmicron_refill(sc); 1239 1240 g_raid_event_send(vol, G_RAID_VOLUME_E_START, 1241 G_RAID_EVENT_VOLUME); 1242 return (0); 1243 } 1244 if (strcmp(verb, "delete") == 0) { 1245 1246 /* Check if some volume is still open. */ 1247 force = gctl_get_paraml(req, "force", sizeof(*force)); 1248 if (force != NULL && *force == 0 && 1249 g_raid_nopens(sc) != 0) { 1250 gctl_error(req, "Some volume is still open."); 1251 return (-4); 1252 } 1253 1254 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1255 if (disk->d_consumer) 1256 jmicron_meta_erase(disk->d_consumer); 1257 } 1258 g_raid_destroy_node(sc, 0); 1259 return (0); 1260 } 1261 if (strcmp(verb, "remove") == 0 || 1262 strcmp(verb, "fail") == 0) { 1263 if (*nargs < 2) { 1264 gctl_error(req, "Invalid number of arguments."); 1265 return (-1); 1266 } 1267 for (i = 1; i < *nargs; i++) { 1268 snprintf(arg, sizeof(arg), "arg%d", i); 1269 diskname = gctl_get_asciiparam(req, arg); 1270 if (diskname == NULL) { 1271 gctl_error(req, "No disk name (%s).", arg); 1272 error = -2; 1273 break; 1274 } 1275 if (strncmp(diskname, "/dev/", 5) == 0) 1276 diskname += 5; 1277 1278 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1279 if (disk->d_consumer != NULL && 1280 disk->d_consumer->provider != NULL && 1281 strcmp(disk->d_consumer->provider->name, 1282 diskname) == 0) 1283 break; 1284 } 1285 if (disk == NULL) { 1286 gctl_error(req, "Disk '%s' not found.", 1287 diskname); 1288 error = -3; 1289 break; 1290 } 1291 1292 if (strcmp(verb, "fail") == 0) { 1293 g_raid_md_fail_disk_jmicron(md, NULL, disk); 1294 continue; 1295 } 1296 1297 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1298 1299 /* Erase metadata on deleting disk. */ 1300 jmicron_meta_erase(disk->d_consumer); 1301 1302 /* If disk was assigned, just update statuses. */ 1303 if (pd->pd_disk_pos >= 0) { 1304 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1305 g_raid_kill_consumer(sc, disk->d_consumer); 1306 disk->d_consumer = NULL; 1307 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 1308 g_raid_change_subdisk_state(sd, 1309 G_RAID_SUBDISK_S_NONE); 1310 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED, 1311 G_RAID_EVENT_SUBDISK); 1312 } 1313 } else { 1314 /* Otherwise -- delete. */ 1315 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 1316 g_raid_destroy_disk(disk); 1317 } 1318 } 1319 1320 /* Write updated metadata to remaining disks. */ 1321 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1322 1323 /* Check if anything left except placeholders. */ 1324 if (g_raid_ndisks(sc, -1) == 1325 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1326 g_raid_destroy_node(sc, 0); 1327 else 1328 g_raid_md_jmicron_refill(sc); 1329 return (error); 1330 } 1331 if (strcmp(verb, "insert") == 0) { 1332 if (*nargs < 2) { 1333 gctl_error(req, "Invalid number of arguments."); 1334 return (-1); 1335 } 1336 update = 0; 1337 for (i = 1; i < *nargs; i++) { 1338 /* Get disk name. */ 1339 snprintf(arg, sizeof(arg), "arg%d", i); 1340 diskname = gctl_get_asciiparam(req, arg); 1341 if (diskname == NULL) { 1342 gctl_error(req, "No disk name (%s).", arg); 1343 error = -3; 1344 break; 1345 } 1346 1347 /* Try to find provider with specified name. */ 1348 g_topology_lock(); 1349 cp = g_raid_open_consumer(sc, diskname); 1350 if (cp == NULL) { 1351 gctl_error(req, "Can't open disk '%s'.", 1352 diskname); 1353 g_topology_unlock(); 1354 error = -4; 1355 break; 1356 } 1357 pp = cp->provider; 1358 1359 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 1360 pd->pd_disk_pos = -3; 1361 pd->pd_disk_id = arc4random() & JMICRON_DISK_MASK; 1362 pd->pd_disk_size = pp->mediasize; 1363 1364 disk = g_raid_create_disk(sc); 1365 disk->d_consumer = cp; 1366 disk->d_md_data = (void *)pd; 1367 cp->private = disk; 1368 g_topology_unlock(); 1369 1370 /* Read kernel dumping information. */ 1371 disk->d_kd.offset = 0; 1372 disk->d_kd.length = OFF_MAX; 1373 len = sizeof(disk->d_kd); 1374 g_io_getattr("GEOM::kerneldump", cp, &len, &disk->d_kd); 1375 if (disk->d_kd.di.dumper == NULL) 1376 G_RAID_DEBUG1(2, sc, 1377 "Dumping not supported by %s.", 1378 cp->provider->name); 1379 1380 /* Welcome the "new" disk. */ 1381 update += g_raid_md_jmicron_start_disk(disk); 1382 if (disk->d_state != G_RAID_DISK_S_ACTIVE && 1383 disk->d_state != G_RAID_DISK_S_SPARE) { 1384 gctl_error(req, "Disk '%s' doesn't fit.", 1385 diskname); 1386 g_raid_destroy_disk(disk); 1387 error = -8; 1388 break; 1389 } 1390 } 1391 1392 /* Write new metadata if we changed something. */ 1393 if (update) 1394 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1395 return (error); 1396 } 1397 gctl_error(req, "Command '%s' is not supported.", verb); 1398 return (-100); 1399} 1400 1401static int 1402g_raid_md_write_jmicron(struct g_raid_md_object *md, struct g_raid_volume *tvol, 1403 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1404{ 1405 struct g_raid_softc *sc; 1406 struct g_raid_volume *vol; 1407 struct g_raid_subdisk *sd; 1408 struct g_raid_disk *disk; 1409 struct g_raid_md_jmicron_object *mdi; 1410 struct g_raid_md_jmicron_perdisk *pd; 1411 struct jmicron_raid_conf *meta; 1412 int i, spares; 1413 1414 sc = md->mdo_softc; 1415 mdi = (struct g_raid_md_jmicron_object *)md; 1416 1417 if (sc->sc_stopping == G_RAID_DESTROY_HARD) 1418 return (0); 1419 1420 /* There is only one volume. */ 1421 vol = TAILQ_FIRST(&sc->sc_volumes); 1422 1423 /* Fill global fields. */ 1424 meta = malloc(sizeof(*meta), M_MD_JMICRON, M_WAITOK | M_ZERO); 1425 strncpy(meta->signature, JMICRON_MAGIC, 2); 1426 meta->version = JMICRON_VERSION; 1427 jmicron_meta_put_name(meta, vol->v_name); 1428 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID0) 1429 meta->type = JMICRON_T_RAID0; 1430 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) 1431 meta->type = JMICRON_T_RAID1; 1432 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) 1433 meta->type = JMICRON_T_RAID01; 1434 else if (vol->v_raid_level == G_RAID_VOLUME_RL_CONCAT || 1435 vol->v_raid_level == G_RAID_VOLUME_RL_SINGLE) 1436 meta->type = JMICRON_T_CONCAT; 1437 else 1438 meta->type = JMICRON_T_RAID5; 1439 meta->stripe_shift = fls(vol->v_strip_size / 2048); 1440 meta->flags = JMICRON_F_READY | JMICRON_F_BOOTABLE; 1441 for (i = 0; i < vol->v_disks_count; i++) { 1442 sd = &vol->v_subdisks[i]; 1443 if (sd->sd_disk == NULL || sd->sd_disk->d_md_data == NULL) 1444 meta->disks[i] = 0xffffffff; 1445 else { 1446 pd = (struct g_raid_md_jmicron_perdisk *) 1447 sd->sd_disk->d_md_data; 1448 meta->disks[i] = pd->pd_disk_id; 1449 } 1450 if (sd->sd_state < G_RAID_SUBDISK_S_STALE) 1451 meta->flags |= JMICRON_F_BADSEC; 1452 if (vol->v_dirty) 1453 meta->flags |= JMICRON_F_UNSYNC; 1454 } 1455 1456 /* Put spares to their slots. */ 1457 spares = 0; 1458 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1459 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1460 if (disk->d_state != G_RAID_DISK_S_SPARE) 1461 continue; 1462 meta->spare[spares] = pd->pd_disk_id; 1463 if (++spares >= 2) 1464 break; 1465 } 1466 1467 /* We are done. Print meta data and store them to disks. */ 1468 if (mdi->mdio_meta != NULL) 1469 free(mdi->mdio_meta, M_MD_JMICRON); 1470 mdi->mdio_meta = meta; 1471 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1472 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1473 if (disk->d_state != G_RAID_DISK_S_ACTIVE && 1474 disk->d_state != G_RAID_DISK_S_SPARE) 1475 continue; 1476 if (pd->pd_meta != NULL) { 1477 free(pd->pd_meta, M_MD_JMICRON); 1478 pd->pd_meta = NULL; 1479 } 1480 pd->pd_meta = jmicron_meta_copy(meta); 1481 pd->pd_meta->disk_id = pd->pd_disk_id; 1482 if ((sd = TAILQ_FIRST(&disk->d_subdisks)) != NULL) { 1483 pd->pd_meta->offset = 1484 (sd->sd_offset / 512) / 16; 1485 pd->pd_meta->disk_sectors_high = 1486 (sd->sd_size / 512) >> 16; 1487 pd->pd_meta->disk_sectors_low = 1488 (sd->sd_size / 512) & 0xffff; 1489 if (sd->sd_state < G_RAID_SUBDISK_S_STALE) 1490 pd->pd_meta->flags &= ~JMICRON_F_BADSEC; 1491 else if (sd->sd_state < G_RAID_SUBDISK_S_ACTIVE) 1492 pd->pd_meta->flags |= JMICRON_F_UNSYNC; 1493 } 1494 G_RAID_DEBUG(1, "Writing JMicron metadata to %s", 1495 g_raid_get_diskname(disk)); 1496 g_raid_md_jmicron_print(pd->pd_meta); 1497 jmicron_meta_write(disk->d_consumer, pd->pd_meta); 1498 } 1499 return (0); 1500} 1501 1502static int 1503g_raid_md_fail_disk_jmicron(struct g_raid_md_object *md, 1504 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1505{ 1506 struct g_raid_softc *sc; 1507 struct g_raid_md_jmicron_perdisk *pd; 1508 struct g_raid_subdisk *sd; 1509 1510 sc = md->mdo_softc; 1511 pd = (struct g_raid_md_jmicron_perdisk *)tdisk->d_md_data; 1512 1513 /* We can't fail disk that is not a part of array now. */ 1514 if (pd->pd_disk_pos < 0) 1515 return (-1); 1516 1517 if (tdisk->d_consumer) 1518 jmicron_meta_erase(tdisk->d_consumer); 1519 1520 /* Change states. */ 1521 g_raid_change_disk_state(tdisk, G_RAID_DISK_S_FAILED); 1522 TAILQ_FOREACH(sd, &tdisk->d_subdisks, sd_next) { 1523 g_raid_change_subdisk_state(sd, 1524 G_RAID_SUBDISK_S_FAILED); 1525 g_raid_event_send(sd, G_RAID_SUBDISK_E_FAILED, 1526 G_RAID_EVENT_SUBDISK); 1527 } 1528 1529 /* Write updated metadata to remaining disks. */ 1530 g_raid_md_write_jmicron(md, NULL, NULL, tdisk); 1531 1532 /* Check if anything left except placeholders. */ 1533 if (g_raid_ndisks(sc, -1) == 1534 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1535 g_raid_destroy_node(sc, 0); 1536 else 1537 g_raid_md_jmicron_refill(sc); 1538 return (0); 1539} 1540 1541static int 1542g_raid_md_free_disk_jmicron(struct g_raid_md_object *md, 1543 struct g_raid_disk *disk) 1544{ 1545 struct g_raid_md_jmicron_perdisk *pd; 1546 1547 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1548 if (pd->pd_meta != NULL) { 1549 free(pd->pd_meta, M_MD_JMICRON); 1550 pd->pd_meta = NULL; 1551 } 1552 free(pd, M_MD_JMICRON); 1553 disk->d_md_data = NULL; 1554 return (0); 1555} 1556 1557static int 1558g_raid_md_free_jmicron(struct g_raid_md_object *md) 1559{ 1560 struct g_raid_md_jmicron_object *mdi; 1561 1562 mdi = (struct g_raid_md_jmicron_object *)md; 1563 if (!mdi->mdio_started) { 1564 mdi->mdio_started = 0; 1565 callout_stop(&mdi->mdio_start_co); 1566 G_RAID_DEBUG1(1, md->mdo_softc, 1567 "root_mount_rel %p", mdi->mdio_rootmount); 1568 root_mount_rel(mdi->mdio_rootmount); 1569 mdi->mdio_rootmount = NULL; 1570 } 1571 if (mdi->mdio_meta != NULL) { 1572 free(mdi->mdio_meta, M_MD_JMICRON); 1573 mdi->mdio_meta = NULL; 1574 } 1575 return (0); 1576} 1577 1578G_RAID_MD_DECLARE(g_raid_md_jmicron); 1579