md_jmicron.c revision 220209
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 220209 2011-03-31 16:14:35Z 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 jmicron_raid_conf *meta; 583 struct g_raid_disk *disk; 584 struct task *task; 585 int update, na; 586 587 md = sc->sc_md; 588 mdi = (struct g_raid_md_jmicron_object *)md; 589 meta = mdi->mdio_meta; 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 meta = mdi->mdio_meta; 626 } 627 628 /* Update status of our need for spare. */ 629 mdi->mdio_incomplete = (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < 630 mdi->mdio_total_disks); 631 632 /* Request retaste hoping to find spare. */ 633 if (mdi->mdio_incomplete) { 634 task = malloc(sizeof(struct task), 635 M_MD_JMICRON, M_WAITOK | M_ZERO); 636 TASK_INIT(task, 0, g_disk_md_jmicron_retaste, task); 637 taskqueue_enqueue(taskqueue_swi, task); 638 } 639} 640 641static void 642g_raid_md_jmicron_start(struct g_raid_softc *sc) 643{ 644 struct g_raid_md_object *md; 645 struct g_raid_md_jmicron_object *mdi; 646 struct g_raid_md_jmicron_perdisk *pd; 647 struct jmicron_raid_conf *meta; 648 struct g_raid_volume *vol; 649 struct g_raid_subdisk *sd; 650 struct g_raid_disk *disk; 651 off_t size; 652 int j, disk_pos; 653 char buf[17]; 654 655 md = sc->sc_md; 656 mdi = (struct g_raid_md_jmicron_object *)md; 657 meta = mdi->mdio_meta; 658 659 /* Create volumes and subdisks. */ 660 jmicron_meta_get_name(meta, buf); 661 vol = g_raid_create_volume(sc, buf, -1); 662 size = ((off_t)meta->disk_sectors_high << 16) + meta->disk_sectors_low; 663 size *= 512; //ZZZ 664 if (meta->type == JMICRON_T_RAID0) { 665 vol->v_raid_level = G_RAID_VOLUME_RL_RAID0; 666 vol->v_mediasize = size * mdi->mdio_total_disks; 667 } else if (meta->type == JMICRON_T_RAID1) { 668 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1; 669 vol->v_mediasize = size; 670 } else if (meta->type == JMICRON_T_RAID01) { 671 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1E; 672 vol->v_mediasize = size * mdi->mdio_total_disks / 2; 673 } else if (meta->type == JMICRON_T_CONCAT) { 674 if (mdi->mdio_total_disks == 1) 675 vol->v_raid_level = G_RAID_VOLUME_RL_SINGLE; 676 else 677 vol->v_raid_level = G_RAID_VOLUME_RL_CONCAT; 678 vol->v_mediasize = 0; 679 } else if (meta->type == JMICRON_T_RAID5) { 680 vol->v_raid_level = G_RAID_VOLUME_RL_RAID5; 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_raid_level_qualifier = G_RAID_VOLUME_RLQ_NONE; 687 vol->v_strip_size = 1024 << meta->stripe_shift; //ZZZ 688 vol->v_disks_count = mdi->mdio_total_disks; 689 vol->v_sectorsize = 512; //ZZZ 690 for (j = 0; j < vol->v_disks_count; j++) { 691 sd = &vol->v_subdisks[j]; 692 sd->sd_offset = (off_t)meta->offset * 16 * 512; //ZZZ 693 sd->sd_size = size; 694 } 695 g_raid_start_volume(vol); 696 697 /* Create disk placeholders to store data for later writing. */ 698 for (disk_pos = 0; disk_pos < mdi->mdio_total_disks; disk_pos++) { 699 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 700 pd->pd_disk_pos = disk_pos; 701 pd->pd_disk_id = meta->disks[disk_pos]; 702 disk = g_raid_create_disk(sc); 703 disk->d_md_data = (void *)pd; 704 disk->d_state = G_RAID_DISK_S_OFFLINE; 705 sd = &vol->v_subdisks[disk_pos]; 706 sd->sd_disk = disk; 707 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 708 } 709 710 /* Make all disks found till the moment take their places. */ 711 do { 712 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 713 if (disk->d_state == G_RAID_DISK_S_NONE) { 714 g_raid_md_jmicron_start_disk(disk); 715 break; 716 } 717 } 718 } while (disk != NULL); 719 720 mdi->mdio_started = 1; 721 G_RAID_DEBUG1(0, sc, "Array started."); 722 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 723 724 /* Pickup any STALE/SPARE disks to refill array if needed. */ 725 g_raid_md_jmicron_refill(sc); 726 727 g_raid_event_send(vol, G_RAID_VOLUME_E_START, G_RAID_EVENT_VOLUME); 728 729 callout_stop(&mdi->mdio_start_co); 730 G_RAID_DEBUG1(1, sc, "root_mount_rel %p", mdi->mdio_rootmount); 731 root_mount_rel(mdi->mdio_rootmount); 732 mdi->mdio_rootmount = NULL; 733} 734 735static void 736g_raid_md_jmicron_new_disk(struct g_raid_disk *disk) 737{ 738 struct g_raid_softc *sc; 739 struct g_raid_md_object *md; 740 struct g_raid_md_jmicron_object *mdi; 741 struct jmicron_raid_conf *pdmeta; 742 struct g_raid_md_jmicron_perdisk *pd; 743 744 sc = disk->d_softc; 745 md = sc->sc_md; 746 mdi = (struct g_raid_md_jmicron_object *)md; 747 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 748 pdmeta = pd->pd_meta; 749 750 if (mdi->mdio_started) { 751 if (g_raid_md_jmicron_start_disk(disk)) 752 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 753 } else { 754 /* 755 * If we haven't started yet - update common metadata 756 * to get subdisks details, avoiding data from spare disks. 757 */ 758 if (mdi->mdio_meta == NULL || 759 jmicron_meta_find_disk(mdi->mdio_meta, 760 mdi->mdio_meta->disk_id) == -3) { 761 if (mdi->mdio_meta != NULL) 762 free(mdi->mdio_meta, M_MD_JMICRON); 763 mdi->mdio_meta = jmicron_meta_copy(pdmeta); 764 mdi->mdio_total_disks = jmicron_meta_total_disks(pdmeta); 765 } 766 mdi->mdio_meta->flags |= pdmeta->flags & JMICRON_F_BADSEC; 767 768 mdi->mdio_disks_present++; 769 G_RAID_DEBUG1(1, sc, "Matching disk (%d of %d+%d up)", 770 mdi->mdio_disks_present, 771 mdi->mdio_total_disks, 772 jmicron_meta_total_spare(mdi->mdio_meta)); 773 774 /* If we collected all needed disks - start array. */ 775 if (mdi->mdio_disks_present == mdi->mdio_total_disks + 776 jmicron_meta_total_spare(mdi->mdio_meta)) 777 g_raid_md_jmicron_start(sc); 778 } 779} 780 781static void 782g_raid_jmicron_go(void *arg) 783{ 784 struct g_raid_softc *sc; 785 struct g_raid_md_object *md; 786 struct g_raid_md_jmicron_object *mdi; 787 788 sc = arg; 789 md = sc->sc_md; 790 mdi = (struct g_raid_md_jmicron_object *)md; 791 if (!mdi->mdio_started) { 792 G_RAID_DEBUG1(0, sc, "Force array start due to timeout."); 793 g_raid_event_send(sc, G_RAID_NODE_E_START, 0); 794 } 795} 796 797static int 798g_raid_md_create_jmicron(struct g_raid_md_object *md, struct g_class *mp, 799 struct g_geom **gp) 800{ 801 struct g_raid_softc *sc; 802 struct g_raid_md_jmicron_object *mdi; 803 char name[16]; 804 805 mdi = (struct g_raid_md_jmicron_object *)md; 806 mdi->mdio_config_id = arc4random(); 807 snprintf(name, sizeof(name), "JMicron-%08x", mdi->mdio_config_id); 808 sc = g_raid_create_node(mp, name, md); 809 if (sc == NULL) 810 return (G_RAID_MD_TASTE_FAIL); 811 md->mdo_softc = sc; 812 *gp = sc->sc_geom; 813 return (G_RAID_MD_TASTE_NEW); 814} 815 816static int 817g_raid_md_taste_jmicron(struct g_raid_md_object *md, struct g_class *mp, 818 struct g_consumer *cp, struct g_geom **gp) 819{ 820 struct g_consumer *rcp; 821 struct g_provider *pp; 822 struct g_raid_md_jmicron_object *mdi, *mdi1; 823 struct g_raid_softc *sc; 824 struct g_raid_disk *disk; 825 struct jmicron_raid_conf *meta; 826 struct g_raid_md_jmicron_perdisk *pd; 827 struct g_geom *geom; 828 int error, disk_pos, result, spare, len; 829 char name[16]; 830 uint16_t vendor; 831 832 G_RAID_DEBUG(1, "Tasting JMicron on %s", cp->provider->name); 833 mdi = (struct g_raid_md_jmicron_object *)md; 834 pp = cp->provider; 835 836 /* Read metadata from device. */ 837 meta = NULL; 838 spare = 0; 839 vendor = 0xffff; 840 disk_pos = 0; 841 if (g_access(cp, 1, 0, 0) != 0) 842 return (G_RAID_MD_TASTE_FAIL); 843 g_topology_unlock(); 844 len = 2; 845 if (pp->geom->rank == 1) 846 g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor); 847 meta = jmicron_meta_read(cp); 848 g_topology_lock(); 849 g_access(cp, -1, 0, 0); 850 if (meta == NULL) { 851 if (g_raid_aggressive_spare) { 852 if (vendor == 0x197b) { 853 G_RAID_DEBUG(1, 854 "No JMicron metadata, forcing spare."); 855 spare = 2; 856 goto search; 857 } else { 858 G_RAID_DEBUG(1, 859 "JMicron vendor mismatch 0x%04x != 0x197b", 860 vendor); 861 } 862 } 863 return (G_RAID_MD_TASTE_FAIL); 864 } 865 866 /* Check this disk position in obtained metadata. */ 867 disk_pos = jmicron_meta_find_disk(meta, meta->disk_id); 868 if (disk_pos == -1) { 869 G_RAID_DEBUG(1, "JMicron disk_id %08x not found", 870 meta->disk_id); 871 goto fail1; 872 } 873 874 /* Metadata valid. Print it. */ 875 g_raid_md_jmicron_print(meta); 876 G_RAID_DEBUG(1, "JMicron disk position %d", disk_pos); 877 spare = (disk_pos == -2) ? 1 : 0; 878 879search: 880 /* Search for matching node. */ 881 sc = NULL; 882 mdi1 = NULL; 883 LIST_FOREACH(geom, &mp->geom, geom) { 884 sc = geom->softc; 885 if (sc == NULL) 886 continue; 887 if (sc->sc_stopping != 0) 888 continue; 889 if (sc->sc_md->mdo_class != md->mdo_class) 890 continue; 891 mdi1 = (struct g_raid_md_jmicron_object *)sc->sc_md; 892 if (spare == 2) { 893 if (mdi1->mdio_incomplete) 894 break; 895 } else { 896 if (mdi1->mdio_config_id == 897 jmicron_meta_config_id(meta)) 898 break; 899 } 900 } 901 902 /* Found matching node. */ 903 if (geom != NULL) { 904 G_RAID_DEBUG(1, "Found matching array %s", sc->sc_name); 905 result = G_RAID_MD_TASTE_EXISTING; 906 907 } else if (spare) { /* Not found needy node -- left for later. */ 908 G_RAID_DEBUG(1, "Spare is not needed at this time"); 909 goto fail1; 910 911 } else { /* Not found matching node -- create one. */ 912 result = G_RAID_MD_TASTE_NEW; 913 mdi->mdio_config_id = jmicron_meta_config_id(meta); 914 snprintf(name, sizeof(name), "JMicron-%08x", 915 mdi->mdio_config_id); 916 sc = g_raid_create_node(mp, name, md); 917 md->mdo_softc = sc; 918 geom = sc->sc_geom; 919 callout_init(&mdi->mdio_start_co, 1); 920 callout_reset(&mdi->mdio_start_co, g_raid_start_timeout * hz, 921 g_raid_jmicron_go, sc); 922 mdi->mdio_rootmount = root_mount_hold("GRAID-JMicron"); 923 G_RAID_DEBUG1(1, sc, "root_mount_hold %p", mdi->mdio_rootmount); 924 } 925 926 rcp = g_new_consumer(geom); 927 g_attach(rcp, pp); 928 if (g_access(rcp, 1, 1, 1) != 0) 929 ; //goto fail1; 930 931 g_topology_unlock(); 932 sx_xlock(&sc->sc_lock); 933 934 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 935 pd->pd_meta = meta; 936 if (spare == 2) { 937 pd->pd_disk_pos = -3; 938 pd->pd_disk_id = arc4random() & JMICRON_DISK_MASK; 939 } else { 940 pd->pd_disk_pos = -1; 941 pd->pd_disk_id = meta->disk_id; 942 } 943 pd->pd_disk_size = pp->mediasize; 944 disk = g_raid_create_disk(sc); 945 disk->d_md_data = (void *)pd; 946 disk->d_consumer = rcp; 947 rcp->private = disk; 948 949 /* Read kernel dumping information. */ 950 disk->d_kd.offset = 0; 951 disk->d_kd.length = OFF_MAX; 952 len = sizeof(disk->d_kd); 953 error = g_io_getattr("GEOM::kerneldump", rcp, &len, &disk->d_kd); 954 if (disk->d_kd.di.dumper == NULL) 955 G_RAID_DEBUG1(2, sc, "Dumping not supported by %s: %d.", 956 rcp->provider->name, error); 957 958 g_raid_md_jmicron_new_disk(disk); 959 960 sx_xunlock(&sc->sc_lock); 961 g_topology_lock(); 962 *gp = geom; 963 return (result); 964fail1: 965 free(meta, M_MD_JMICRON); 966 return (G_RAID_MD_TASTE_FAIL); 967} 968 969static int 970g_raid_md_event_jmicron(struct g_raid_md_object *md, 971 struct g_raid_disk *disk, u_int event) 972{ 973 struct g_raid_softc *sc; 974 struct g_raid_subdisk *sd; 975 struct g_raid_md_jmicron_object *mdi; 976 struct g_raid_md_jmicron_perdisk *pd; 977 978 sc = md->mdo_softc; 979 mdi = (struct g_raid_md_jmicron_object *)md; 980 if (disk == NULL) { 981 switch (event) { 982 case G_RAID_NODE_E_START: 983 if (!mdi->mdio_started) 984 g_raid_md_jmicron_start(sc); 985 return (0); 986 } 987 return (-1); 988 } 989 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 990 switch (event) { 991 case G_RAID_DISK_E_DISCONNECTED: 992 /* If disk was assigned, just update statuses. */ 993 if (pd->pd_disk_pos >= 0) { 994 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 995 if (disk->d_consumer) { 996 g_raid_kill_consumer(sc, disk->d_consumer); 997 disk->d_consumer = NULL; 998 } 999 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 1000 g_raid_change_subdisk_state(sd, 1001 G_RAID_SUBDISK_S_NONE); 1002 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED, 1003 G_RAID_EVENT_SUBDISK); 1004 } 1005 } else { 1006 /* Otherwise -- delete. */ 1007 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 1008 g_raid_destroy_disk(disk); 1009 } 1010 1011 /* Write updated metadata to all disks. */ 1012 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1013 1014 /* Check if anything left except placeholders. */ 1015 if (g_raid_ndisks(sc, -1) == 1016 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1017 g_raid_destroy_node(sc, 0); 1018 else 1019 g_raid_md_jmicron_refill(sc); 1020 return (0); 1021 } 1022 return (-2); 1023} 1024 1025static int 1026g_raid_md_ctl_jmicron(struct g_raid_md_object *md, 1027 struct gctl_req *req) 1028{ 1029 struct g_raid_softc *sc; 1030 struct g_raid_volume *vol; 1031 struct g_raid_subdisk *sd; 1032 struct g_raid_disk *disk; 1033 struct g_raid_md_jmicron_object *mdi; 1034 struct g_raid_md_jmicron_perdisk *pd; 1035 struct g_consumer *cp; 1036 struct g_provider *pp; 1037 char arg[16]; 1038 const char *verb, *volname, *levelname, *diskname; 1039 int *nargs, *force; 1040 off_t size, sectorsize, strip; 1041 intmax_t *sizearg, *striparg; 1042 int numdisks, i, len, level, qual, update; 1043 int error; 1044 1045 sc = md->mdo_softc; 1046 mdi = (struct g_raid_md_jmicron_object *)md; 1047 verb = gctl_get_param(req, "verb", NULL); 1048 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 1049 error = 0; 1050 if (strcmp(verb, "label") == 0) { 1051 1052 if (*nargs < 4) { 1053 gctl_error(req, "Invalid number of arguments."); 1054 return (-1); 1055 } 1056 volname = gctl_get_asciiparam(req, "arg1"); 1057 if (volname == NULL) { 1058 gctl_error(req, "No volume name."); 1059 return (-2); 1060 } 1061 levelname = gctl_get_asciiparam(req, "arg2"); 1062 if (levelname == NULL) { 1063 gctl_error(req, "No RAID level."); 1064 return (-3); 1065 } 1066 if (g_raid_volume_str2level(levelname, &level, &qual)) { 1067 gctl_error(req, "Unknown RAID level '%s'.", levelname); 1068 return (-4); 1069 } 1070 numdisks = *nargs - 3; 1071 force = gctl_get_paraml(req, "force", sizeof(*force)); 1072 if (!g_raid_md_jmicron_supported(level, qual, numdisks, 1073 force ? *force : 0)) { 1074 gctl_error(req, "Unsupported RAID level " 1075 "(0x%02x/0x%02x), or number of disks (%d).", 1076 level, qual, numdisks); 1077 return (-5); 1078 } 1079 1080 /* Search for disks, connect them and probe. */ 1081 size = 0x7fffffffffffffffllu; 1082 sectorsize = 0; 1083 for (i = 0; i < numdisks; i++) { 1084 snprintf(arg, sizeof(arg), "arg%d", i + 3); 1085 diskname = gctl_get_asciiparam(req, arg); 1086 if (diskname == NULL) { 1087 gctl_error(req, "No disk name (%s).", arg); 1088 error = -6; 1089 break; 1090 } 1091 if (strcmp(diskname, "NONE") == 0) { 1092 cp = NULL; 1093 pp = NULL; 1094 } else { 1095 g_topology_lock(); 1096 cp = g_raid_open_consumer(sc, diskname); 1097 if (cp == NULL) { 1098 gctl_error(req, "Can't open '%s'.", 1099 diskname); 1100 g_topology_unlock(); 1101 error = -7; 1102 break; 1103 } 1104 pp = cp->provider; 1105 } 1106 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 1107 pd->pd_disk_pos = i; 1108 pd->pd_disk_id = arc4random() & JMICRON_DISK_MASK; 1109 disk = g_raid_create_disk(sc); 1110 disk->d_md_data = (void *)pd; 1111 disk->d_consumer = cp; 1112 if (cp == NULL) 1113 continue; 1114 cp->private = disk; 1115 g_topology_unlock(); 1116 1117 /* Read kernel dumping information. */ 1118 disk->d_kd.offset = 0; 1119 disk->d_kd.length = OFF_MAX; 1120 len = sizeof(disk->d_kd); 1121 g_io_getattr("GEOM::kerneldump", cp, &len, &disk->d_kd); 1122 if (disk->d_kd.di.dumper == NULL) 1123 G_RAID_DEBUG1(2, sc, 1124 "Dumping not supported by %s.", 1125 cp->provider->name); 1126 1127 pd->pd_disk_size = pp->mediasize; 1128 if (size > pp->mediasize) 1129 size = pp->mediasize; 1130 if (sectorsize < pp->sectorsize) 1131 sectorsize = pp->sectorsize; 1132 } 1133 if (error != 0) 1134 return (error); 1135 1136 /* Reserve space for metadata. */ 1137 size -= sectorsize; 1138 1139 /* Handle size argument. */ 1140 len = sizeof(*sizearg); 1141 sizearg = gctl_get_param(req, "size", &len); 1142 if (sizearg != NULL && len == sizeof(*sizearg) && 1143 *sizearg > 0) { 1144 if (*sizearg > size) { 1145 gctl_error(req, "Size too big %lld > %lld.", 1146 (long long)*sizearg, (long long)size); 1147 return (-9); 1148 } 1149 size = *sizearg; 1150 } 1151 1152 /* Handle strip argument. */ 1153 strip = 131072; 1154 len = sizeof(*striparg); 1155 striparg = gctl_get_param(req, "strip", &len); 1156 if (striparg != NULL && len == sizeof(*striparg) && 1157 *striparg > 0) { 1158 if (*striparg < sectorsize) { 1159 gctl_error(req, "Strip size too small."); 1160 return (-10); 1161 } 1162 if (*striparg % sectorsize != 0) { 1163 gctl_error(req, "Incorrect strip size."); 1164 return (-11); 1165 } 1166 if (strip > 65535 * sectorsize) { 1167 gctl_error(req, "Strip size too big."); 1168 return (-12); 1169 } 1170 strip = *striparg; 1171 } 1172 1173 /* Round size down to strip or sector. */ 1174 if (level == G_RAID_VOLUME_RL_RAID1) 1175 size -= (size % sectorsize); 1176 else if (level == G_RAID_VOLUME_RL_RAID1E && 1177 (numdisks & 1) != 0) 1178 size -= (size % (2 * strip)); 1179 else 1180 size -= (size % strip); 1181 if (size <= 0) { 1182 gctl_error(req, "Size too small."); 1183 return (-13); 1184 } 1185 if (size > 0xffffffffffffllu * sectorsize) { 1186 gctl_error(req, "Size too big."); 1187 return (-14); 1188 } 1189 1190 /* We have all we need, create things: volume, ... */ 1191 mdi->mdio_total_disks = numdisks; 1192 mdi->mdio_started = 1; 1193 vol = g_raid_create_volume(sc, volname, -1); 1194 vol->v_md_data = (void *)(intptr_t)0; 1195 vol->v_raid_level = level; 1196 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_NONE; 1197 vol->v_strip_size = strip; 1198 vol->v_disks_count = numdisks; 1199 if (level == G_RAID_VOLUME_RL_RAID0 || 1200 level == G_RAID_VOLUME_RL_CONCAT || 1201 level == G_RAID_VOLUME_RL_SINGLE) 1202 vol->v_mediasize = size * numdisks; 1203 else if (level == G_RAID_VOLUME_RL_RAID1) 1204 vol->v_mediasize = size; 1205 else if (level == G_RAID_VOLUME_RL_RAID5) 1206 vol->v_mediasize = size * (numdisks - 1); 1207 else { /* RAID1E */ 1208 vol->v_mediasize = ((size * numdisks) / strip / 2) * 1209 strip; 1210 } 1211 vol->v_sectorsize = sectorsize; 1212 g_raid_start_volume(vol); 1213 1214 /* , and subdisks. */ 1215 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1216 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1217 sd = &vol->v_subdisks[pd->pd_disk_pos]; 1218 sd->sd_disk = disk; 1219 sd->sd_offset = 0; 1220 sd->sd_size = size; 1221 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 1222 if (sd->sd_disk->d_consumer != NULL) { 1223 g_raid_change_disk_state(disk, 1224 G_RAID_DISK_S_ACTIVE); 1225 g_raid_change_subdisk_state(sd, 1226 G_RAID_SUBDISK_S_ACTIVE); 1227 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 1228 G_RAID_EVENT_SUBDISK); 1229 } else { 1230 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1231 } 1232 } 1233 1234 /* Write metadata based on created entities. */ 1235 G_RAID_DEBUG1(0, sc, "Array started."); 1236 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1237 1238 /* Pickup any STALE/SPARE disks to refill array if needed. */ 1239 g_raid_md_jmicron_refill(sc); 1240 1241 g_raid_event_send(vol, G_RAID_VOLUME_E_START, 1242 G_RAID_EVENT_VOLUME); 1243 return (0); 1244 } 1245 if (strcmp(verb, "delete") == 0) { 1246 1247 /* Check if some volume is still open. */ 1248 force = gctl_get_paraml(req, "force", sizeof(*force)); 1249 if (force != NULL && *force == 0 && 1250 g_raid_nopens(sc) != 0) { 1251 gctl_error(req, "Some volume is still open."); 1252 return (-4); 1253 } 1254 1255 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1256 if (disk->d_consumer) 1257 jmicron_meta_erase(disk->d_consumer); 1258 } 1259 g_raid_destroy_node(sc, 0); 1260 return (0); 1261 } 1262 if (strcmp(verb, "remove") == 0 || 1263 strcmp(verb, "fail") == 0) { 1264 if (*nargs < 2) { 1265 gctl_error(req, "Invalid number of arguments."); 1266 return (-1); 1267 } 1268 for (i = 1; i < *nargs; i++) { 1269 snprintf(arg, sizeof(arg), "arg%d", i); 1270 diskname = gctl_get_asciiparam(req, arg); 1271 if (diskname == NULL) { 1272 gctl_error(req, "No disk name (%s).", arg); 1273 error = -2; 1274 break; 1275 } 1276 if (strncmp(diskname, "/dev/", 5) == 0) 1277 diskname += 5; 1278 1279 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1280 if (disk->d_consumer != NULL && 1281 disk->d_consumer->provider != NULL && 1282 strcmp(disk->d_consumer->provider->name, 1283 diskname) == 0) 1284 break; 1285 } 1286 if (disk == NULL) { 1287 gctl_error(req, "Disk '%s' not found.", 1288 diskname); 1289 error = -3; 1290 break; 1291 } 1292 1293 if (strcmp(verb, "fail") == 0) { 1294 g_raid_md_fail_disk_jmicron(md, NULL, disk); 1295 continue; 1296 } 1297 1298 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1299 1300 /* Erase metadata on deleting disk. */ 1301 jmicron_meta_erase(disk->d_consumer); 1302 1303 /* If disk was assigned, just update statuses. */ 1304 if (pd->pd_disk_pos >= 0) { 1305 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1306 g_raid_kill_consumer(sc, disk->d_consumer); 1307 disk->d_consumer = NULL; 1308 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 1309 g_raid_change_subdisk_state(sd, 1310 G_RAID_SUBDISK_S_NONE); 1311 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED, 1312 G_RAID_EVENT_SUBDISK); 1313 } 1314 } else { 1315 /* Otherwise -- delete. */ 1316 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 1317 g_raid_destroy_disk(disk); 1318 } 1319 } 1320 1321 /* Write updated metadata to remaining disks. */ 1322 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1323 1324 /* Check if anything left except placeholders. */ 1325 if (g_raid_ndisks(sc, -1) == 1326 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1327 g_raid_destroy_node(sc, 0); 1328 else 1329 g_raid_md_jmicron_refill(sc); 1330 return (error); 1331 } 1332 if (strcmp(verb, "insert") == 0) { 1333 if (*nargs < 2) { 1334 gctl_error(req, "Invalid number of arguments."); 1335 return (-1); 1336 } 1337 update = 0; 1338 for (i = 1; i < *nargs; i++) { 1339 /* Get disk name. */ 1340 snprintf(arg, sizeof(arg), "arg%d", i); 1341 diskname = gctl_get_asciiparam(req, arg); 1342 if (diskname == NULL) { 1343 gctl_error(req, "No disk name (%s).", arg); 1344 error = -3; 1345 break; 1346 } 1347 1348 /* Try to find provider with specified name. */ 1349 g_topology_lock(); 1350 cp = g_raid_open_consumer(sc, diskname); 1351 if (cp == NULL) { 1352 gctl_error(req, "Can't open disk '%s'.", 1353 diskname); 1354 g_topology_unlock(); 1355 error = -4; 1356 break; 1357 } 1358 pp = cp->provider; 1359 1360 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 1361 pd->pd_disk_pos = -3; 1362 pd->pd_disk_id = arc4random() & JMICRON_DISK_MASK; 1363 pd->pd_disk_size = pp->mediasize; 1364 1365 disk = g_raid_create_disk(sc); 1366 disk->d_consumer = cp; 1367 disk->d_consumer->private = disk; 1368 disk->d_md_data = (void *)pd; 1369 cp->private = disk; 1370 g_topology_unlock(); 1371 1372 /* Read kernel dumping information. */ 1373 disk->d_kd.offset = 0; 1374 disk->d_kd.length = OFF_MAX; 1375 len = sizeof(disk->d_kd); 1376 g_io_getattr("GEOM::kerneldump", cp, &len, &disk->d_kd); 1377 if (disk->d_kd.di.dumper == NULL) 1378 G_RAID_DEBUG1(2, sc, 1379 "Dumping not supported by %s.", 1380 cp->provider->name); 1381 1382 /* Welcome the "new" disk. */ 1383 update += g_raid_md_jmicron_start_disk(disk); 1384 if (disk->d_state != G_RAID_DISK_S_ACTIVE && 1385 disk->d_state != G_RAID_DISK_S_SPARE) { 1386 gctl_error(req, "Disk '%s' doesn't fit.", 1387 diskname); 1388 g_raid_destroy_disk(disk); 1389 error = -8; 1390 break; 1391 } 1392 } 1393 1394 /* Write new metadata if we changed something. */ 1395 if (update) 1396 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1397 return (error); 1398 } 1399 gctl_error(req, "Command '%s' is not supported.", verb); 1400 return (-100); 1401} 1402 1403static int 1404g_raid_md_write_jmicron(struct g_raid_md_object *md, struct g_raid_volume *tvol, 1405 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1406{ 1407 struct g_raid_softc *sc; 1408 struct g_raid_volume *vol; 1409 struct g_raid_subdisk *sd; 1410 struct g_raid_disk *disk; 1411 struct g_raid_md_jmicron_object *mdi; 1412 struct g_raid_md_jmicron_perdisk *pd; 1413 struct jmicron_raid_conf *meta; 1414 int i, spares; 1415 1416 sc = md->mdo_softc; 1417 mdi = (struct g_raid_md_jmicron_object *)md; 1418 1419 if (sc->sc_stopping == G_RAID_DESTROY_HARD) 1420 return (0); 1421 1422 /* There is only one volume. */ 1423 vol = TAILQ_FIRST(&sc->sc_volumes); 1424 1425 /* Fill global fields. */ 1426 meta = malloc(sizeof(*meta), M_MD_JMICRON, M_WAITOK | M_ZERO); 1427 strncpy(meta->signature, JMICRON_MAGIC, 2); 1428 meta->version = JMICRON_VERSION; 1429 jmicron_meta_put_name(meta, vol->v_name); 1430 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID0) 1431 meta->type = JMICRON_T_RAID0; 1432 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) 1433 meta->type = JMICRON_T_RAID1; 1434 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) 1435 meta->type = JMICRON_T_RAID01; 1436 else if (vol->v_raid_level == G_RAID_VOLUME_RL_CONCAT || 1437 vol->v_raid_level == G_RAID_VOLUME_RL_SINGLE) 1438 meta->type = JMICRON_T_CONCAT; 1439 else 1440 meta->type = JMICRON_T_RAID5; 1441 meta->stripe_shift = fls(vol->v_strip_size / 2048); 1442 meta->flags = JMICRON_F_READY | JMICRON_F_BOOTABLE; 1443 for (i = 0; i < vol->v_disks_count; i++) { 1444 sd = &vol->v_subdisks[i]; 1445 if (sd->sd_disk == NULL || sd->sd_disk->d_md_data == NULL) 1446 meta->disks[i] = 0xffffffff; 1447 else { 1448 pd = (struct g_raid_md_jmicron_perdisk *) 1449 sd->sd_disk->d_md_data; 1450 meta->disks[i] = pd->pd_disk_id; 1451 } 1452 if (sd->sd_state < G_RAID_SUBDISK_S_STALE) 1453 meta->flags |= JMICRON_F_BADSEC; 1454 if (vol->v_dirty) 1455 meta->flags |= JMICRON_F_UNSYNC; 1456 } 1457 1458 /* Put spares to their slots. */ 1459 spares = 0; 1460 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1461 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1462 if (disk->d_state != G_RAID_DISK_S_SPARE) 1463 continue; 1464 meta->spare[spares] = pd->pd_disk_id; 1465 if (++spares >= 2) 1466 break; 1467 } 1468 1469 /* We are done. Print meta data and store them to disks. */ 1470 if (mdi->mdio_meta != NULL) 1471 free(mdi->mdio_meta, M_MD_JMICRON); 1472 mdi->mdio_meta = meta; 1473 i = 0; 1474 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1475 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1476 if (disk->d_state != G_RAID_DISK_S_ACTIVE && 1477 disk->d_state != G_RAID_DISK_S_SPARE) 1478 continue; 1479 if (pd->pd_meta != NULL) { 1480 free(pd->pd_meta, M_MD_JMICRON); 1481 pd->pd_meta = NULL; 1482 } 1483 pd->pd_meta = jmicron_meta_copy(meta); 1484 pd->pd_meta->disk_id = pd->pd_disk_id; 1485 if ((sd = TAILQ_FIRST(&disk->d_subdisks)) != NULL) { 1486 pd->pd_meta->offset = 1487 (sd->sd_offset / 512) / 16; 1488 pd->pd_meta->disk_sectors_high = 1489 (sd->sd_size / 512) >> 16; 1490 pd->pd_meta->disk_sectors_low = 1491 (sd->sd_size / 512) & 0xffff; 1492 if (sd->sd_state < G_RAID_SUBDISK_S_STALE) 1493 pd->pd_meta->flags &= ~JMICRON_F_BADSEC; 1494 else if (sd->sd_state < G_RAID_SUBDISK_S_ACTIVE) 1495 pd->pd_meta->flags |= JMICRON_F_UNSYNC; 1496 } 1497 G_RAID_DEBUG(1, "Writing JMicron metadata to %s", 1498 g_raid_get_diskname(disk)); 1499 g_raid_md_jmicron_print(pd->pd_meta); 1500 jmicron_meta_write(disk->d_consumer, pd->pd_meta); 1501 } 1502 return (0); 1503} 1504 1505static int 1506g_raid_md_fail_disk_jmicron(struct g_raid_md_object *md, 1507 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1508{ 1509 struct g_raid_softc *sc; 1510 struct g_raid_md_jmicron_object *mdi; 1511 struct g_raid_md_jmicron_perdisk *pd; 1512 struct g_raid_subdisk *sd; 1513 1514 sc = md->mdo_softc; 1515 mdi = (struct g_raid_md_jmicron_object *)md; 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