md_jmicron.c revision 235092
1/*- 2 * Copyright (c) 2010 Alexander Motin <mav@FreeBSD.org> 3 * Copyright (c) 2000 - 2008 S��ren Schmidt <sos@FreeBSD.org> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28#include <sys/cdefs.h> 29__FBSDID("$FreeBSD: stable/9/sys/geom/raid/md_jmicron.c 235092 2012-05-06 15:55:01Z mav $"); 30 31#include <sys/param.h> 32#include <sys/bio.h> 33#include <sys/endian.h> 34#include <sys/kernel.h> 35#include <sys/kobj.h> 36#include <sys/limits.h> 37#include <sys/lock.h> 38#include <sys/malloc.h> 39#include <sys/mutex.h> 40#include <sys/systm.h> 41#include <sys/taskqueue.h> 42#include <geom/geom.h> 43#include "geom/raid/g_raid.h" 44#include "g_raid_md_if.h" 45 46static MALLOC_DEFINE(M_MD_JMICRON, "md_jmicron_data", "GEOM_RAID JMicron metadata"); 47 48#define JMICRON_MAX_DISKS 8 49#define JMICRON_MAX_SPARE 2 50 51struct jmicron_raid_conf { 52 u_int8_t signature[2]; 53#define JMICRON_MAGIC "JM" 54 55 u_int16_t version; 56#define JMICRON_VERSION 0x0001 57 58 u_int16_t checksum; 59 u_int8_t filler_1[10]; 60 u_int32_t disk_id; 61 u_int32_t offset; 62 u_int32_t disk_sectors_high; 63 u_int16_t disk_sectors_low; 64 u_int8_t filler_2[2]; 65 u_int8_t name[16]; 66 u_int8_t type; 67#define JMICRON_T_RAID0 0 68#define JMICRON_T_RAID1 1 69#define JMICRON_T_RAID01 2 70#define JMICRON_T_CONCAT 3 71#define JMICRON_T_RAID5 5 72 73 u_int8_t stripe_shift; 74 u_int16_t flags; 75#define JMICRON_F_READY 0x0001 76#define JMICRON_F_BOOTABLE 0x0002 77#define JMICRON_F_BADSEC 0x0004 78#define JMICRON_F_ACTIVE 0x0010 79#define JMICRON_F_UNSYNC 0x0020 80#define JMICRON_F_NEWEST 0x0040 81 82 u_int8_t filler_3[4]; 83 u_int32_t spare[JMICRON_MAX_SPARE]; 84 u_int32_t disks[JMICRON_MAX_DISKS]; 85#define JMICRON_DISK_MASK 0xFFFFFFF0 86#define JMICRON_SEG_MASK 0x0000000F 87 u_int8_t filler_4[32]; 88 u_int8_t filler_5[384]; 89}; 90 91struct g_raid_md_jmicron_perdisk { 92 struct jmicron_raid_conf *pd_meta; 93 int pd_disk_pos; 94 int pd_disk_id; 95 off_t pd_disk_size; 96}; 97 98struct g_raid_md_jmicron_object { 99 struct g_raid_md_object mdio_base; 100 uint32_t mdio_config_id; 101 struct jmicron_raid_conf *mdio_meta; 102 struct callout mdio_start_co; /* STARTING state timer. */ 103 int mdio_total_disks; 104 int mdio_disks_present; 105 int mdio_started; 106 int mdio_incomplete; 107 struct root_hold_token *mdio_rootmount; /* Root mount delay token. */ 108}; 109 110static g_raid_md_create_t g_raid_md_create_jmicron; 111static g_raid_md_taste_t g_raid_md_taste_jmicron; 112static g_raid_md_event_t g_raid_md_event_jmicron; 113static g_raid_md_ctl_t g_raid_md_ctl_jmicron; 114static g_raid_md_write_t g_raid_md_write_jmicron; 115static g_raid_md_fail_disk_t g_raid_md_fail_disk_jmicron; 116static g_raid_md_free_disk_t g_raid_md_free_disk_jmicron; 117static g_raid_md_free_t g_raid_md_free_jmicron; 118 119static kobj_method_t g_raid_md_jmicron_methods[] = { 120 KOBJMETHOD(g_raid_md_create, g_raid_md_create_jmicron), 121 KOBJMETHOD(g_raid_md_taste, g_raid_md_taste_jmicron), 122 KOBJMETHOD(g_raid_md_event, g_raid_md_event_jmicron), 123 KOBJMETHOD(g_raid_md_ctl, g_raid_md_ctl_jmicron), 124 KOBJMETHOD(g_raid_md_write, g_raid_md_write_jmicron), 125 KOBJMETHOD(g_raid_md_fail_disk, g_raid_md_fail_disk_jmicron), 126 KOBJMETHOD(g_raid_md_free_disk, g_raid_md_free_disk_jmicron), 127 KOBJMETHOD(g_raid_md_free, g_raid_md_free_jmicron), 128 { 0, 0 } 129}; 130 131static struct g_raid_md_class g_raid_md_jmicron_class = { 132 "JMicron", 133 g_raid_md_jmicron_methods, 134 sizeof(struct g_raid_md_jmicron_object), 135 .mdc_priority = 100 136}; 137 138static void 139g_raid_md_jmicron_print(struct jmicron_raid_conf *meta) 140{ 141 int k; 142 143 if (g_raid_debug < 1) 144 return; 145 146 printf("********* ATA JMicron RAID Metadata *********\n"); 147 printf("signature <%c%c>\n", meta->signature[0], meta->signature[1]); 148 printf("version %04x\n", meta->version); 149 printf("checksum 0x%04x\n", meta->checksum); 150 printf("disk_id 0x%08x\n", meta->disk_id); 151 printf("offset 0x%08x\n", meta->offset); 152 printf("disk_sectors_high 0x%08x\n", meta->disk_sectors_high); 153 printf("disk_sectors_low 0x%04x\n", meta->disk_sectors_low); 154 printf("name <%.16s>\n", meta->name); 155 printf("type %d\n", meta->type); 156 printf("stripe_shift %d\n", meta->stripe_shift); 157 printf("flags %04x\n", meta->flags); 158 printf("spare "); 159 for (k = 0; k < JMICRON_MAX_SPARE; k++) 160 printf(" 0x%08x", meta->spare[k]); 161 printf("\n"); 162 printf("disks "); 163 for (k = 0; k < JMICRON_MAX_DISKS; k++) 164 printf(" 0x%08x", meta->disks[k]); 165 printf("\n"); 166 printf("=================================================\n"); 167} 168 169static struct jmicron_raid_conf * 170jmicron_meta_copy(struct jmicron_raid_conf *meta) 171{ 172 struct jmicron_raid_conf *nmeta; 173 174 nmeta = malloc(sizeof(*meta), M_MD_JMICRON, M_WAITOK); 175 memcpy(nmeta, meta, sizeof(*meta)); 176 return (nmeta); 177} 178 179static int 180jmicron_meta_total_disks(struct jmicron_raid_conf *meta) 181{ 182 int pos; 183 184 for (pos = 0; pos < JMICRON_MAX_DISKS; pos++) { 185 if (meta->disks[pos] == 0) 186 break; 187 } 188 return (pos); 189} 190 191static int 192jmicron_meta_total_spare(struct jmicron_raid_conf *meta) 193{ 194 int pos, n; 195 196 n = 0; 197 for (pos = 0; pos < JMICRON_MAX_SPARE; pos++) { 198 if (meta->spare[pos] != 0) 199 n++; 200 } 201 return (n); 202} 203 204/* 205 * Generate fake Configuration ID based on disk IDs. 206 * Note: it will change after each disk set change. 207 */ 208static uint32_t 209jmicron_meta_config_id(struct jmicron_raid_conf *meta) 210{ 211 int pos; 212 uint32_t config_id; 213 214 config_id = 0; 215 for (pos = 0; pos < JMICRON_MAX_DISKS; pos++) 216 config_id += meta->disks[pos] << pos; 217 return (config_id); 218} 219 220static void 221jmicron_meta_get_name(struct jmicron_raid_conf *meta, char *buf) 222{ 223 int i; 224 225 strncpy(buf, meta->name, 16); 226 buf[16] = 0; 227 for (i = 15; i >= 0; i--) { 228 if (buf[i] > 0x20) 229 break; 230 buf[i] = 0; 231 } 232} 233 234static void 235jmicron_meta_put_name(struct jmicron_raid_conf *meta, char *buf) 236{ 237 238 memset(meta->name, 0x20, 16); 239 memcpy(meta->name, buf, MIN(strlen(buf), 16)); 240} 241 242static int 243jmicron_meta_find_disk(struct jmicron_raid_conf *meta, uint32_t id) 244{ 245 int pos; 246 247 id &= JMICRON_DISK_MASK; 248 for (pos = 0; pos < JMICRON_MAX_DISKS; pos++) { 249 if ((meta->disks[pos] & JMICRON_DISK_MASK) == id) 250 return (pos); 251 } 252 for (pos = 0; pos < JMICRON_MAX_SPARE; pos++) { 253 if ((meta->spare[pos] & JMICRON_DISK_MASK) == id) 254 return (-3); 255 } 256 return (-1); 257} 258 259static struct jmicron_raid_conf * 260jmicron_meta_read(struct g_consumer *cp) 261{ 262 struct g_provider *pp; 263 struct jmicron_raid_conf *meta; 264 char *buf; 265 int error, i; 266 uint16_t checksum, *ptr; 267 268 pp = cp->provider; 269 270 /* Read the anchor sector. */ 271 buf = g_read_data(cp, 272 pp->mediasize - pp->sectorsize, pp->sectorsize, &error); 273 if (buf == NULL) { 274 G_RAID_DEBUG(1, "Cannot read metadata from %s (error=%d).", 275 pp->name, error); 276 return (NULL); 277 } 278 meta = (struct jmicron_raid_conf *)buf; 279 280 /* Check if this is an JMicron RAID struct */ 281 if (strncmp(meta->signature, JMICRON_MAGIC, strlen(JMICRON_MAGIC))) { 282 G_RAID_DEBUG(1, "JMicron signature check failed on %s", pp->name); 283 g_free(buf); 284 return (NULL); 285 } 286 meta = malloc(sizeof(*meta), M_MD_JMICRON, M_WAITOK); 287 memcpy(meta, buf, min(sizeof(*meta), pp->sectorsize)); 288 g_free(buf); 289 290 /* Check metadata checksum. */ 291 for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i < 64; i++) 292 checksum += *ptr++; 293 if (checksum != 0) { 294 G_RAID_DEBUG(1, "JMicron checksum check failed on %s", pp->name); 295 free(meta, M_MD_JMICRON); 296 return (NULL); 297 } 298 299 return (meta); 300} 301 302static int 303jmicron_meta_write(struct g_consumer *cp, struct jmicron_raid_conf *meta) 304{ 305 struct g_provider *pp; 306 char *buf; 307 int error, i; 308 uint16_t checksum, *ptr; 309 310 pp = cp->provider; 311 312 /* Recalculate checksum for case if metadata were changed. */ 313 meta->checksum = 0; 314 for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i < 64; i++) 315 checksum += *ptr++; 316 meta->checksum -= checksum; 317 318 /* Create and fill buffer. */ 319 buf = malloc(pp->sectorsize, M_MD_JMICRON, M_WAITOK | M_ZERO); 320 memcpy(buf, meta, sizeof(*meta)); 321 322 error = g_write_data(cp, 323 pp->mediasize - pp->sectorsize, buf, pp->sectorsize); 324 if (error != 0) { 325 G_RAID_DEBUG(1, "Cannot write metadata to %s (error=%d).", 326 pp->name, error); 327 } 328 329 free(buf, M_MD_JMICRON); 330 return (error); 331} 332 333static int 334jmicron_meta_erase(struct g_consumer *cp) 335{ 336 struct g_provider *pp; 337 char *buf; 338 int error; 339 340 pp = cp->provider; 341 buf = malloc(pp->sectorsize, M_MD_JMICRON, M_WAITOK | M_ZERO); 342 error = g_write_data(cp, 343 pp->mediasize - pp->sectorsize, buf, pp->sectorsize); 344 if (error != 0) { 345 G_RAID_DEBUG(1, "Cannot erase metadata on %s (error=%d).", 346 pp->name, error); 347 } 348 free(buf, M_MD_JMICRON); 349 return (error); 350} 351 352static struct g_raid_disk * 353g_raid_md_jmicron_get_disk(struct g_raid_softc *sc, int id) 354{ 355 struct g_raid_disk *disk; 356 struct g_raid_md_jmicron_perdisk *pd; 357 358 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 359 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 360 if (pd->pd_disk_pos == id) 361 break; 362 } 363 return (disk); 364} 365 366static int 367g_raid_md_jmicron_supported(int level, int qual, int disks, int force) 368{ 369 370 if (disks > 8) 371 return (0); 372 switch (level) { 373 case G_RAID_VOLUME_RL_RAID0: 374 if (disks < 1) 375 return (0); 376 if (!force && (disks < 2 || disks > 6)) 377 return (0); 378 break; 379 case G_RAID_VOLUME_RL_RAID1: 380 if (disks < 1) 381 return (0); 382 if (!force && (disks != 2)) 383 return (0); 384 break; 385 case G_RAID_VOLUME_RL_RAID1E: 386 if (disks < 2) 387 return (0); 388 if (!force && (disks != 4)) 389 return (0); 390 break; 391 case G_RAID_VOLUME_RL_SINGLE: 392 if (disks != 1) 393 return (0); 394 if (!force) 395 return (0); 396 break; 397 case G_RAID_VOLUME_RL_CONCAT: 398 if (disks < 2) 399 return (0); 400 break; 401 case G_RAID_VOLUME_RL_RAID5: 402 if (disks < 3) 403 return (0); 404 if (!force) 405 return (0); 406 break; 407 default: 408 return (0); 409 } 410 if (qual != G_RAID_VOLUME_RLQ_NONE) 411 return (0); 412 return (1); 413} 414 415static int 416g_raid_md_jmicron_start_disk(struct g_raid_disk *disk) 417{ 418 struct g_raid_softc *sc; 419 struct g_raid_subdisk *sd, *tmpsd; 420 struct g_raid_disk *olddisk, *tmpdisk; 421 struct g_raid_md_object *md; 422 struct g_raid_md_jmicron_object *mdi; 423 struct g_raid_md_jmicron_perdisk *pd, *oldpd; 424 struct jmicron_raid_conf *meta; 425 int disk_pos, resurrection = 0; 426 427 sc = disk->d_softc; 428 md = sc->sc_md; 429 mdi = (struct g_raid_md_jmicron_object *)md; 430 meta = mdi->mdio_meta; 431 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 432 olddisk = NULL; 433 434 /* Find disk position in metadata by it's serial. */ 435 if (pd->pd_meta != NULL) 436 disk_pos = jmicron_meta_find_disk(meta, pd->pd_disk_id); 437 else 438 disk_pos = -1; 439 if (disk_pos < 0) { 440 G_RAID_DEBUG1(1, sc, "Unknown, probably new or stale disk"); 441 /* If we are in the start process, that's all for now. */ 442 if (!mdi->mdio_started) 443 goto nofit; 444 /* 445 * If we have already started - try to get use of the disk. 446 * Try to replace OFFLINE disks first, then FAILED. 447 */ 448 TAILQ_FOREACH(tmpdisk, &sc->sc_disks, d_next) { 449 if (tmpdisk->d_state != G_RAID_DISK_S_OFFLINE && 450 tmpdisk->d_state != G_RAID_DISK_S_FAILED) 451 continue; 452 /* Make sure this disk is big enough. */ 453 TAILQ_FOREACH(sd, &tmpdisk->d_subdisks, sd_next) { 454 if (sd->sd_offset + sd->sd_size + 512 > 455 pd->pd_disk_size) { 456 G_RAID_DEBUG1(1, sc, 457 "Disk too small (%ju < %ju)", 458 pd->pd_disk_size, 459 sd->sd_offset + sd->sd_size + 512); 460 break; 461 } 462 } 463 if (sd != NULL) 464 continue; 465 if (tmpdisk->d_state == G_RAID_DISK_S_OFFLINE) { 466 olddisk = tmpdisk; 467 break; 468 } else if (olddisk == NULL) 469 olddisk = tmpdisk; 470 } 471 if (olddisk == NULL) { 472nofit: 473 if (disk_pos == -3 || pd->pd_disk_pos == -3) { 474 g_raid_change_disk_state(disk, 475 G_RAID_DISK_S_SPARE); 476 return (1); 477 } else { 478 g_raid_change_disk_state(disk, 479 G_RAID_DISK_S_STALE); 480 return (0); 481 } 482 } 483 oldpd = (struct g_raid_md_jmicron_perdisk *)olddisk->d_md_data; 484 disk_pos = oldpd->pd_disk_pos; 485 resurrection = 1; 486 } 487 488 if (olddisk == NULL) { 489 /* Find placeholder by position. */ 490 olddisk = g_raid_md_jmicron_get_disk(sc, disk_pos); 491 if (olddisk == NULL) 492 panic("No disk at position %d!", disk_pos); 493 if (olddisk->d_state != G_RAID_DISK_S_OFFLINE) { 494 G_RAID_DEBUG1(1, sc, "More then one disk for pos %d", 495 disk_pos); 496 g_raid_change_disk_state(disk, G_RAID_DISK_S_STALE); 497 return (0); 498 } 499 oldpd = (struct g_raid_md_jmicron_perdisk *)olddisk->d_md_data; 500 } 501 502 /* Replace failed disk or placeholder with new disk. */ 503 TAILQ_FOREACH_SAFE(sd, &olddisk->d_subdisks, sd_next, tmpsd) { 504 TAILQ_REMOVE(&olddisk->d_subdisks, sd, sd_next); 505 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 506 sd->sd_disk = disk; 507 } 508 oldpd->pd_disk_pos = -2; 509 pd->pd_disk_pos = disk_pos; 510 /* Update global metadata just in case. */ 511 meta->disks[disk_pos] = pd->pd_disk_id; 512 513 /* If it was placeholder -- destroy it. */ 514 if (olddisk->d_state == G_RAID_DISK_S_OFFLINE) { 515 g_raid_destroy_disk(olddisk); 516 } else { 517 /* Otherwise, make it STALE_FAILED. */ 518 g_raid_change_disk_state(olddisk, G_RAID_DISK_S_STALE_FAILED); 519 } 520 521 /* Welcome the new disk. */ 522 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE); 523 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 524 525 /* 526 * Different disks may have different sizes/offsets, 527 * especially in concat mode. Update. 528 */ 529 if (!resurrection) { 530 sd->sd_offset = 531 (off_t)pd->pd_meta->offset * 16 * 512; //ZZZ 532 sd->sd_size = 533 (((off_t)pd->pd_meta->disk_sectors_high << 16) + 534 pd->pd_meta->disk_sectors_low) * 512; 535 } 536 537 if (resurrection) { 538 /* Stale disk, almost same as new. */ 539 g_raid_change_subdisk_state(sd, 540 G_RAID_SUBDISK_S_NEW); 541 } else if ((meta->flags & JMICRON_F_BADSEC) != 0 && 542 (pd->pd_meta->flags & JMICRON_F_BADSEC) == 0) { 543 /* Cold-inserted or rebuilding disk. */ 544 g_raid_change_subdisk_state(sd, 545 G_RAID_SUBDISK_S_NEW); 546 } else if (pd->pd_meta->flags & JMICRON_F_UNSYNC) { 547 /* Dirty or resyncing disk.. */ 548 g_raid_change_subdisk_state(sd, 549 G_RAID_SUBDISK_S_STALE); 550 } else { 551 /* Up to date disk. */ 552 g_raid_change_subdisk_state(sd, 553 G_RAID_SUBDISK_S_ACTIVE); 554 } 555 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 556 G_RAID_EVENT_SUBDISK); 557 } 558 559 /* Update status of our need for spare. */ 560 if (mdi->mdio_started) { 561 mdi->mdio_incomplete = 562 (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < 563 mdi->mdio_total_disks); 564 } 565 566 return (resurrection); 567} 568 569static void 570g_disk_md_jmicron_retaste(void *arg, int pending) 571{ 572 573 G_RAID_DEBUG(1, "Array is not complete, trying to retaste."); 574 g_retaste(&g_raid_class); 575 free(arg, M_MD_JMICRON); 576} 577 578static void 579g_raid_md_jmicron_refill(struct g_raid_softc *sc) 580{ 581 struct g_raid_md_object *md; 582 struct g_raid_md_jmicron_object *mdi; 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 update = 0; 590 do { 591 /* Make sure we miss anything. */ 592 na = g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE); 593 if (na == mdi->mdio_total_disks) 594 break; 595 596 G_RAID_DEBUG1(1, md->mdo_softc, 597 "Array is not complete (%d of %d), " 598 "trying to refill.", na, mdi->mdio_total_disks); 599 600 /* Try to get use some of STALE disks. */ 601 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 602 if (disk->d_state == G_RAID_DISK_S_STALE) { 603 update += g_raid_md_jmicron_start_disk(disk); 604 if (disk->d_state == G_RAID_DISK_S_ACTIVE) 605 break; 606 } 607 } 608 if (disk != NULL) 609 continue; 610 611 /* Try to get use some of SPARE disks. */ 612 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 613 if (disk->d_state == G_RAID_DISK_S_SPARE) { 614 update += g_raid_md_jmicron_start_disk(disk); 615 if (disk->d_state == G_RAID_DISK_S_ACTIVE) 616 break; 617 } 618 } 619 } while (disk != NULL); 620 621 /* Write new metadata if we changed something. */ 622 if (update) 623 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 624 625 /* Update status of our need for spare. */ 626 mdi->mdio_incomplete = (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < 627 mdi->mdio_total_disks); 628 629 /* Request retaste hoping to find spare. */ 630 if (mdi->mdio_incomplete) { 631 task = malloc(sizeof(struct task), 632 M_MD_JMICRON, M_WAITOK | M_ZERO); 633 TASK_INIT(task, 0, g_disk_md_jmicron_retaste, task); 634 taskqueue_enqueue(taskqueue_swi, task); 635 } 636} 637 638static void 639g_raid_md_jmicron_start(struct g_raid_softc *sc) 640{ 641 struct g_raid_md_object *md; 642 struct g_raid_md_jmicron_object *mdi; 643 struct g_raid_md_jmicron_perdisk *pd; 644 struct jmicron_raid_conf *meta; 645 struct g_raid_volume *vol; 646 struct g_raid_subdisk *sd; 647 struct g_raid_disk *disk; 648 off_t size; 649 int j, disk_pos; 650 char buf[17]; 651 652 md = sc->sc_md; 653 mdi = (struct g_raid_md_jmicron_object *)md; 654 meta = mdi->mdio_meta; 655 656 /* Create volumes and subdisks. */ 657 jmicron_meta_get_name(meta, buf); 658 vol = g_raid_create_volume(sc, buf, -1); 659 size = ((off_t)meta->disk_sectors_high << 16) + meta->disk_sectors_low; 660 size *= 512; //ZZZ 661 if (meta->type == JMICRON_T_RAID0) { 662 vol->v_raid_level = G_RAID_VOLUME_RL_RAID0; 663 vol->v_mediasize = size * mdi->mdio_total_disks; 664 } else if (meta->type == JMICRON_T_RAID1) { 665 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1; 666 vol->v_mediasize = size; 667 } else if (meta->type == JMICRON_T_RAID01) { 668 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1E; 669 vol->v_mediasize = size * mdi->mdio_total_disks / 2; 670 } else if (meta->type == JMICRON_T_CONCAT) { 671 if (mdi->mdio_total_disks == 1) 672 vol->v_raid_level = G_RAID_VOLUME_RL_SINGLE; 673 else 674 vol->v_raid_level = G_RAID_VOLUME_RL_CONCAT; 675 vol->v_mediasize = 0; 676 } else if (meta->type == JMICRON_T_RAID5) { 677 vol->v_raid_level = G_RAID_VOLUME_RL_RAID5; 678 vol->v_mediasize = size * (mdi->mdio_total_disks - 1); 679 } else { 680 vol->v_raid_level = G_RAID_VOLUME_RL_UNKNOWN; 681 vol->v_mediasize = 0; 682 } 683 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_NONE; 684 vol->v_strip_size = 1024 << meta->stripe_shift; //ZZZ 685 vol->v_disks_count = mdi->mdio_total_disks; 686 vol->v_sectorsize = 512; //ZZZ 687 for (j = 0; j < vol->v_disks_count; j++) { 688 sd = &vol->v_subdisks[j]; 689 sd->sd_offset = (off_t)meta->offset * 16 * 512; //ZZZ 690 sd->sd_size = size; 691 } 692 g_raid_start_volume(vol); 693 694 /* Create disk placeholders to store data for later writing. */ 695 for (disk_pos = 0; disk_pos < mdi->mdio_total_disks; disk_pos++) { 696 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 697 pd->pd_disk_pos = disk_pos; 698 pd->pd_disk_id = meta->disks[disk_pos]; 699 disk = g_raid_create_disk(sc); 700 disk->d_md_data = (void *)pd; 701 disk->d_state = G_RAID_DISK_S_OFFLINE; 702 sd = &vol->v_subdisks[disk_pos]; 703 sd->sd_disk = disk; 704 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 705 } 706 707 /* Make all disks found till the moment take their places. */ 708 do { 709 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 710 if (disk->d_state == G_RAID_DISK_S_NONE) { 711 g_raid_md_jmicron_start_disk(disk); 712 break; 713 } 714 } 715 } while (disk != NULL); 716 717 mdi->mdio_started = 1; 718 G_RAID_DEBUG1(0, sc, "Array started."); 719 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 720 721 /* Pickup any STALE/SPARE disks to refill array if needed. */ 722 g_raid_md_jmicron_refill(sc); 723 724 g_raid_event_send(vol, G_RAID_VOLUME_E_START, G_RAID_EVENT_VOLUME); 725 726 callout_stop(&mdi->mdio_start_co); 727 G_RAID_DEBUG1(1, sc, "root_mount_rel %p", mdi->mdio_rootmount); 728 root_mount_rel(mdi->mdio_rootmount); 729 mdi->mdio_rootmount = NULL; 730} 731 732static void 733g_raid_md_jmicron_new_disk(struct g_raid_disk *disk) 734{ 735 struct g_raid_softc *sc; 736 struct g_raid_md_object *md; 737 struct g_raid_md_jmicron_object *mdi; 738 struct jmicron_raid_conf *pdmeta; 739 struct g_raid_md_jmicron_perdisk *pd; 740 741 sc = disk->d_softc; 742 md = sc->sc_md; 743 mdi = (struct g_raid_md_jmicron_object *)md; 744 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 745 pdmeta = pd->pd_meta; 746 747 if (mdi->mdio_started) { 748 if (g_raid_md_jmicron_start_disk(disk)) 749 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 750 } else { 751 /* 752 * If we haven't started yet - update common metadata 753 * to get subdisks details, avoiding data from spare disks. 754 */ 755 if (mdi->mdio_meta == NULL || 756 jmicron_meta_find_disk(mdi->mdio_meta, 757 mdi->mdio_meta->disk_id) == -3) { 758 if (mdi->mdio_meta != NULL) 759 free(mdi->mdio_meta, M_MD_JMICRON); 760 mdi->mdio_meta = jmicron_meta_copy(pdmeta); 761 mdi->mdio_total_disks = jmicron_meta_total_disks(pdmeta); 762 } 763 mdi->mdio_meta->flags |= pdmeta->flags & JMICRON_F_BADSEC; 764 765 mdi->mdio_disks_present++; 766 G_RAID_DEBUG1(1, sc, "Matching disk (%d of %d+%d up)", 767 mdi->mdio_disks_present, 768 mdi->mdio_total_disks, 769 jmicron_meta_total_spare(mdi->mdio_meta)); 770 771 /* If we collected all needed disks - start array. */ 772 if (mdi->mdio_disks_present == mdi->mdio_total_disks + 773 jmicron_meta_total_spare(mdi->mdio_meta)) 774 g_raid_md_jmicron_start(sc); 775 } 776} 777 778static void 779g_raid_jmicron_go(void *arg) 780{ 781 struct g_raid_softc *sc; 782 struct g_raid_md_object *md; 783 struct g_raid_md_jmicron_object *mdi; 784 785 sc = arg; 786 md = sc->sc_md; 787 mdi = (struct g_raid_md_jmicron_object *)md; 788 if (!mdi->mdio_started) { 789 G_RAID_DEBUG1(0, sc, "Force array start due to timeout."); 790 g_raid_event_send(sc, G_RAID_NODE_E_START, 0); 791 } 792} 793 794static int 795g_raid_md_create_jmicron(struct g_raid_md_object *md, struct g_class *mp, 796 struct g_geom **gp) 797{ 798 struct g_raid_softc *sc; 799 struct g_raid_md_jmicron_object *mdi; 800 char name[16]; 801 802 mdi = (struct g_raid_md_jmicron_object *)md; 803 mdi->mdio_config_id = arc4random(); 804 snprintf(name, sizeof(name), "JMicron-%08x", mdi->mdio_config_id); 805 sc = g_raid_create_node(mp, name, md); 806 if (sc == NULL) 807 return (G_RAID_MD_TASTE_FAIL); 808 md->mdo_softc = sc; 809 *gp = sc->sc_geom; 810 return (G_RAID_MD_TASTE_NEW); 811} 812 813static int 814g_raid_md_taste_jmicron(struct g_raid_md_object *md, struct g_class *mp, 815 struct g_consumer *cp, struct g_geom **gp) 816{ 817 struct g_consumer *rcp; 818 struct g_provider *pp; 819 struct g_raid_md_jmicron_object *mdi, *mdi1; 820 struct g_raid_softc *sc; 821 struct g_raid_disk *disk; 822 struct jmicron_raid_conf *meta; 823 struct g_raid_md_jmicron_perdisk *pd; 824 struct g_geom *geom; 825 int error, disk_pos, result, spare, len; 826 char name[16]; 827 uint16_t vendor; 828 829 G_RAID_DEBUG(1, "Tasting JMicron on %s", cp->provider->name); 830 mdi = (struct g_raid_md_jmicron_object *)md; 831 pp = cp->provider; 832 833 /* Read metadata from device. */ 834 meta = NULL; 835 vendor = 0xffff; 836 if (g_access(cp, 1, 0, 0) != 0) 837 return (G_RAID_MD_TASTE_FAIL); 838 g_topology_unlock(); 839 len = 2; 840 if (pp->geom->rank == 1) 841 g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor); 842 meta = jmicron_meta_read(cp); 843 g_topology_lock(); 844 g_access(cp, -1, 0, 0); 845 if (meta == NULL) { 846 if (g_raid_aggressive_spare) { 847 if (vendor == 0x197b) { 848 G_RAID_DEBUG(1, 849 "No JMicron metadata, forcing spare."); 850 spare = 2; 851 goto search; 852 } else { 853 G_RAID_DEBUG(1, 854 "JMicron vendor mismatch 0x%04x != 0x197b", 855 vendor); 856 } 857 } 858 return (G_RAID_MD_TASTE_FAIL); 859 } 860 861 /* Check this disk position in obtained metadata. */ 862 disk_pos = jmicron_meta_find_disk(meta, meta->disk_id); 863 if (disk_pos == -1) { 864 G_RAID_DEBUG(1, "JMicron disk_id %08x not found", 865 meta->disk_id); 866 goto fail1; 867 } 868 869 /* Metadata valid. Print it. */ 870 g_raid_md_jmicron_print(meta); 871 G_RAID_DEBUG(1, "JMicron disk position %d", disk_pos); 872 spare = (disk_pos == -2) ? 1 : 0; 873 874search: 875 /* Search for matching node. */ 876 sc = NULL; 877 mdi1 = NULL; 878 LIST_FOREACH(geom, &mp->geom, geom) { 879 sc = geom->softc; 880 if (sc == NULL) 881 continue; 882 if (sc->sc_stopping != 0) 883 continue; 884 if (sc->sc_md->mdo_class != md->mdo_class) 885 continue; 886 mdi1 = (struct g_raid_md_jmicron_object *)sc->sc_md; 887 if (spare == 2) { 888 if (mdi1->mdio_incomplete) 889 break; 890 } else { 891 if (mdi1->mdio_config_id == 892 jmicron_meta_config_id(meta)) 893 break; 894 } 895 } 896 897 /* Found matching node. */ 898 if (geom != NULL) { 899 G_RAID_DEBUG(1, "Found matching array %s", sc->sc_name); 900 result = G_RAID_MD_TASTE_EXISTING; 901 902 } else if (spare) { /* Not found needy node -- left for later. */ 903 G_RAID_DEBUG(1, "Spare is not needed at this time"); 904 goto fail1; 905 906 } else { /* Not found matching node -- create one. */ 907 result = G_RAID_MD_TASTE_NEW; 908 mdi->mdio_config_id = jmicron_meta_config_id(meta); 909 snprintf(name, sizeof(name), "JMicron-%08x", 910 mdi->mdio_config_id); 911 sc = g_raid_create_node(mp, name, md); 912 md->mdo_softc = sc; 913 geom = sc->sc_geom; 914 callout_init(&mdi->mdio_start_co, 1); 915 callout_reset(&mdi->mdio_start_co, g_raid_start_timeout * hz, 916 g_raid_jmicron_go, sc); 917 mdi->mdio_rootmount = root_mount_hold("GRAID-JMicron"); 918 G_RAID_DEBUG1(1, sc, "root_mount_hold %p", mdi->mdio_rootmount); 919 } 920 921 rcp = g_new_consumer(geom); 922 g_attach(rcp, pp); 923 if (g_access(rcp, 1, 1, 1) != 0) 924 ; //goto fail1; 925 926 g_topology_unlock(); 927 sx_xlock(&sc->sc_lock); 928 929 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 930 pd->pd_meta = meta; 931 if (spare == 2) { 932 pd->pd_disk_pos = -3; 933 pd->pd_disk_id = arc4random() & JMICRON_DISK_MASK; 934 } else { 935 pd->pd_disk_pos = -1; 936 pd->pd_disk_id = meta->disk_id; 937 } 938 pd->pd_disk_size = pp->mediasize; 939 disk = g_raid_create_disk(sc); 940 disk->d_md_data = (void *)pd; 941 disk->d_consumer = rcp; 942 rcp->private = disk; 943 944 /* Read kernel dumping information. */ 945 disk->d_kd.offset = 0; 946 disk->d_kd.length = OFF_MAX; 947 len = sizeof(disk->d_kd); 948 error = g_io_getattr("GEOM::kerneldump", rcp, &len, &disk->d_kd); 949 if (disk->d_kd.di.dumper == NULL) 950 G_RAID_DEBUG1(2, sc, "Dumping not supported by %s: %d.", 951 rcp->provider->name, error); 952 953 g_raid_md_jmicron_new_disk(disk); 954 955 sx_xunlock(&sc->sc_lock); 956 g_topology_lock(); 957 *gp = geom; 958 return (result); 959fail1: 960 free(meta, M_MD_JMICRON); 961 return (G_RAID_MD_TASTE_FAIL); 962} 963 964static int 965g_raid_md_event_jmicron(struct g_raid_md_object *md, 966 struct g_raid_disk *disk, u_int event) 967{ 968 struct g_raid_softc *sc; 969 struct g_raid_subdisk *sd; 970 struct g_raid_md_jmicron_object *mdi; 971 struct g_raid_md_jmicron_perdisk *pd; 972 973 sc = md->mdo_softc; 974 mdi = (struct g_raid_md_jmicron_object *)md; 975 if (disk == NULL) { 976 switch (event) { 977 case G_RAID_NODE_E_START: 978 if (!mdi->mdio_started) 979 g_raid_md_jmicron_start(sc); 980 return (0); 981 } 982 return (-1); 983 } 984 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 985 switch (event) { 986 case G_RAID_DISK_E_DISCONNECTED: 987 /* If disk was assigned, just update statuses. */ 988 if (pd->pd_disk_pos >= 0) { 989 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 990 if (disk->d_consumer) { 991 g_raid_kill_consumer(sc, disk->d_consumer); 992 disk->d_consumer = NULL; 993 } 994 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 995 g_raid_change_subdisk_state(sd, 996 G_RAID_SUBDISK_S_NONE); 997 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED, 998 G_RAID_EVENT_SUBDISK); 999 } 1000 } else { 1001 /* Otherwise -- delete. */ 1002 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 1003 g_raid_destroy_disk(disk); 1004 } 1005 1006 /* Write updated metadata to all disks. */ 1007 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1008 1009 /* Check if anything left except placeholders. */ 1010 if (g_raid_ndisks(sc, -1) == 1011 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1012 g_raid_destroy_node(sc, 0); 1013 else 1014 g_raid_md_jmicron_refill(sc); 1015 return (0); 1016 } 1017 return (-2); 1018} 1019 1020static int 1021g_raid_md_ctl_jmicron(struct g_raid_md_object *md, 1022 struct gctl_req *req) 1023{ 1024 struct g_raid_softc *sc; 1025 struct g_raid_volume *vol; 1026 struct g_raid_subdisk *sd; 1027 struct g_raid_disk *disk; 1028 struct g_raid_md_jmicron_object *mdi; 1029 struct g_raid_md_jmicron_perdisk *pd; 1030 struct g_consumer *cp; 1031 struct g_provider *pp; 1032 char arg[16]; 1033 const char *verb, *volname, *levelname, *diskname; 1034 int *nargs, *force; 1035 off_t size, sectorsize, strip; 1036 intmax_t *sizearg, *striparg; 1037 int numdisks, i, len, level, qual, update; 1038 int error; 1039 1040 sc = md->mdo_softc; 1041 mdi = (struct g_raid_md_jmicron_object *)md; 1042 verb = gctl_get_param(req, "verb", NULL); 1043 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 1044 error = 0; 1045 if (strcmp(verb, "label") == 0) { 1046 1047 if (*nargs < 4) { 1048 gctl_error(req, "Invalid number of arguments."); 1049 return (-1); 1050 } 1051 volname = gctl_get_asciiparam(req, "arg1"); 1052 if (volname == NULL) { 1053 gctl_error(req, "No volume name."); 1054 return (-2); 1055 } 1056 levelname = gctl_get_asciiparam(req, "arg2"); 1057 if (levelname == NULL) { 1058 gctl_error(req, "No RAID level."); 1059 return (-3); 1060 } 1061 if (g_raid_volume_str2level(levelname, &level, &qual)) { 1062 gctl_error(req, "Unknown RAID level '%s'.", levelname); 1063 return (-4); 1064 } 1065 numdisks = *nargs - 3; 1066 force = gctl_get_paraml(req, "force", sizeof(*force)); 1067 if (!g_raid_md_jmicron_supported(level, qual, numdisks, 1068 force ? *force : 0)) { 1069 gctl_error(req, "Unsupported RAID level " 1070 "(0x%02x/0x%02x), or number of disks (%d).", 1071 level, qual, numdisks); 1072 return (-5); 1073 } 1074 1075 /* Search for disks, connect them and probe. */ 1076 size = 0x7fffffffffffffffllu; 1077 sectorsize = 0; 1078 for (i = 0; i < numdisks; i++) { 1079 snprintf(arg, sizeof(arg), "arg%d", i + 3); 1080 diskname = gctl_get_asciiparam(req, arg); 1081 if (diskname == NULL) { 1082 gctl_error(req, "No disk name (%s).", arg); 1083 error = -6; 1084 break; 1085 } 1086 if (strcmp(diskname, "NONE") == 0) { 1087 cp = NULL; 1088 pp = NULL; 1089 } else { 1090 g_topology_lock(); 1091 cp = g_raid_open_consumer(sc, diskname); 1092 if (cp == NULL) { 1093 gctl_error(req, "Can't open '%s'.", 1094 diskname); 1095 g_topology_unlock(); 1096 error = -7; 1097 break; 1098 } 1099 pp = cp->provider; 1100 } 1101 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 1102 pd->pd_disk_pos = i; 1103 pd->pd_disk_id = arc4random() & JMICRON_DISK_MASK; 1104 disk = g_raid_create_disk(sc); 1105 disk->d_md_data = (void *)pd; 1106 disk->d_consumer = cp; 1107 if (cp == NULL) 1108 continue; 1109 cp->private = disk; 1110 g_topology_unlock(); 1111 1112 /* Read kernel dumping information. */ 1113 disk->d_kd.offset = 0; 1114 disk->d_kd.length = OFF_MAX; 1115 len = sizeof(disk->d_kd); 1116 g_io_getattr("GEOM::kerneldump", cp, &len, &disk->d_kd); 1117 if (disk->d_kd.di.dumper == NULL) 1118 G_RAID_DEBUG1(2, sc, 1119 "Dumping not supported by %s.", 1120 cp->provider->name); 1121 1122 pd->pd_disk_size = pp->mediasize; 1123 if (size > pp->mediasize) 1124 size = pp->mediasize; 1125 if (sectorsize < pp->sectorsize) 1126 sectorsize = pp->sectorsize; 1127 } 1128 if (error != 0) 1129 return (error); 1130 1131 if (sectorsize <= 0) { 1132 gctl_error(req, "Can't get sector size."); 1133 return (-8); 1134 } 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_md_data = (void *)pd; 1368 cp->private = disk; 1369 g_topology_unlock(); 1370 1371 /* Read kernel dumping information. */ 1372 disk->d_kd.offset = 0; 1373 disk->d_kd.length = OFF_MAX; 1374 len = sizeof(disk->d_kd); 1375 g_io_getattr("GEOM::kerneldump", cp, &len, &disk->d_kd); 1376 if (disk->d_kd.di.dumper == NULL) 1377 G_RAID_DEBUG1(2, sc, 1378 "Dumping not supported by %s.", 1379 cp->provider->name); 1380 1381 /* Welcome the "new" disk. */ 1382 update += g_raid_md_jmicron_start_disk(disk); 1383 if (disk->d_state != G_RAID_DISK_S_ACTIVE && 1384 disk->d_state != G_RAID_DISK_S_SPARE) { 1385 gctl_error(req, "Disk '%s' doesn't fit.", 1386 diskname); 1387 g_raid_destroy_disk(disk); 1388 error = -8; 1389 break; 1390 } 1391 } 1392 1393 /* Write new metadata if we changed something. */ 1394 if (update) 1395 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1396 return (error); 1397 } 1398 gctl_error(req, "Command '%s' is not supported.", verb); 1399 return (-100); 1400} 1401 1402static int 1403g_raid_md_write_jmicron(struct g_raid_md_object *md, struct g_raid_volume *tvol, 1404 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1405{ 1406 struct g_raid_softc *sc; 1407 struct g_raid_volume *vol; 1408 struct g_raid_subdisk *sd; 1409 struct g_raid_disk *disk; 1410 struct g_raid_md_jmicron_object *mdi; 1411 struct g_raid_md_jmicron_perdisk *pd; 1412 struct jmicron_raid_conf *meta; 1413 int i, spares; 1414 1415 sc = md->mdo_softc; 1416 mdi = (struct g_raid_md_jmicron_object *)md; 1417 1418 if (sc->sc_stopping == G_RAID_DESTROY_HARD) 1419 return (0); 1420 1421 /* There is only one volume. */ 1422 vol = TAILQ_FIRST(&sc->sc_volumes); 1423 1424 /* Fill global fields. */ 1425 meta = malloc(sizeof(*meta), M_MD_JMICRON, M_WAITOK | M_ZERO); 1426 strncpy(meta->signature, JMICRON_MAGIC, 2); 1427 meta->version = JMICRON_VERSION; 1428 jmicron_meta_put_name(meta, vol->v_name); 1429 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID0) 1430 meta->type = JMICRON_T_RAID0; 1431 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) 1432 meta->type = JMICRON_T_RAID1; 1433 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) 1434 meta->type = JMICRON_T_RAID01; 1435 else if (vol->v_raid_level == G_RAID_VOLUME_RL_CONCAT || 1436 vol->v_raid_level == G_RAID_VOLUME_RL_SINGLE) 1437 meta->type = JMICRON_T_CONCAT; 1438 else 1439 meta->type = JMICRON_T_RAID5; 1440 meta->stripe_shift = fls(vol->v_strip_size / 2048); 1441 meta->flags = JMICRON_F_READY | JMICRON_F_BOOTABLE; 1442 for (i = 0; i < vol->v_disks_count; i++) { 1443 sd = &vol->v_subdisks[i]; 1444 if (sd->sd_disk == NULL || sd->sd_disk->d_md_data == NULL) 1445 meta->disks[i] = 0xffffffff; 1446 else { 1447 pd = (struct g_raid_md_jmicron_perdisk *) 1448 sd->sd_disk->d_md_data; 1449 meta->disks[i] = pd->pd_disk_id; 1450 } 1451 if (sd->sd_state < G_RAID_SUBDISK_S_STALE) 1452 meta->flags |= JMICRON_F_BADSEC; 1453 if (vol->v_dirty) 1454 meta->flags |= JMICRON_F_UNSYNC; 1455 } 1456 1457 /* Put spares to their slots. */ 1458 spares = 0; 1459 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1460 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1461 if (disk->d_state != G_RAID_DISK_S_SPARE) 1462 continue; 1463 meta->spare[spares] = pd->pd_disk_id; 1464 if (++spares >= 2) 1465 break; 1466 } 1467 1468 /* We are done. Print meta data and store them to disks. */ 1469 if (mdi->mdio_meta != NULL) 1470 free(mdi->mdio_meta, M_MD_JMICRON); 1471 mdi->mdio_meta = meta; 1472 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1473 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1474 if (disk->d_state != G_RAID_DISK_S_ACTIVE && 1475 disk->d_state != G_RAID_DISK_S_SPARE) 1476 continue; 1477 if (pd->pd_meta != NULL) { 1478 free(pd->pd_meta, M_MD_JMICRON); 1479 pd->pd_meta = NULL; 1480 } 1481 pd->pd_meta = jmicron_meta_copy(meta); 1482 pd->pd_meta->disk_id = pd->pd_disk_id; 1483 if ((sd = TAILQ_FIRST(&disk->d_subdisks)) != NULL) { 1484 pd->pd_meta->offset = 1485 (sd->sd_offset / 512) / 16; 1486 pd->pd_meta->disk_sectors_high = 1487 (sd->sd_size / 512) >> 16; 1488 pd->pd_meta->disk_sectors_low = 1489 (sd->sd_size / 512) & 0xffff; 1490 if (sd->sd_state < G_RAID_SUBDISK_S_STALE) 1491 pd->pd_meta->flags &= ~JMICRON_F_BADSEC; 1492 else if (sd->sd_state < G_RAID_SUBDISK_S_ACTIVE) 1493 pd->pd_meta->flags |= JMICRON_F_UNSYNC; 1494 } 1495 G_RAID_DEBUG(1, "Writing JMicron metadata to %s", 1496 g_raid_get_diskname(disk)); 1497 g_raid_md_jmicron_print(pd->pd_meta); 1498 jmicron_meta_write(disk->d_consumer, pd->pd_meta); 1499 } 1500 return (0); 1501} 1502 1503static int 1504g_raid_md_fail_disk_jmicron(struct g_raid_md_object *md, 1505 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1506{ 1507 struct g_raid_softc *sc; 1508 struct g_raid_md_jmicron_perdisk *pd; 1509 struct g_raid_subdisk *sd; 1510 1511 sc = md->mdo_softc; 1512 pd = (struct g_raid_md_jmicron_perdisk *)tdisk->d_md_data; 1513 1514 /* We can't fail disk that is not a part of array now. */ 1515 if (pd->pd_disk_pos < 0) 1516 return (-1); 1517 1518 if (tdisk->d_consumer) 1519 jmicron_meta_erase(tdisk->d_consumer); 1520 1521 /* Change states. */ 1522 g_raid_change_disk_state(tdisk, G_RAID_DISK_S_FAILED); 1523 TAILQ_FOREACH(sd, &tdisk->d_subdisks, sd_next) { 1524 g_raid_change_subdisk_state(sd, 1525 G_RAID_SUBDISK_S_FAILED); 1526 g_raid_event_send(sd, G_RAID_SUBDISK_E_FAILED, 1527 G_RAID_EVENT_SUBDISK); 1528 } 1529 1530 /* Write updated metadata to remaining disks. */ 1531 g_raid_md_write_jmicron(md, NULL, NULL, tdisk); 1532 1533 /* Check if anything left except placeholders. */ 1534 if (g_raid_ndisks(sc, -1) == 1535 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1536 g_raid_destroy_node(sc, 0); 1537 else 1538 g_raid_md_jmicron_refill(sc); 1539 return (0); 1540} 1541 1542static int 1543g_raid_md_free_disk_jmicron(struct g_raid_md_object *md, 1544 struct g_raid_disk *disk) 1545{ 1546 struct g_raid_md_jmicron_perdisk *pd; 1547 1548 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1549 if (pd->pd_meta != NULL) { 1550 free(pd->pd_meta, M_MD_JMICRON); 1551 pd->pd_meta = NULL; 1552 } 1553 free(pd, M_MD_JMICRON); 1554 disk->d_md_data = NULL; 1555 return (0); 1556} 1557 1558static int 1559g_raid_md_free_jmicron(struct g_raid_md_object *md) 1560{ 1561 struct g_raid_md_jmicron_object *mdi; 1562 1563 mdi = (struct g_raid_md_jmicron_object *)md; 1564 if (!mdi->mdio_started) { 1565 mdi->mdio_started = 0; 1566 callout_stop(&mdi->mdio_start_co); 1567 G_RAID_DEBUG1(1, md->mdo_softc, 1568 "root_mount_rel %p", mdi->mdio_rootmount); 1569 root_mount_rel(mdi->mdio_rootmount); 1570 mdi->mdio_rootmount = NULL; 1571 } 1572 if (mdi->mdio_meta != NULL) { 1573 free(mdi->mdio_meta, M_MD_JMICRON); 1574 mdi->mdio_meta = NULL; 1575 } 1576 return (0); 1577} 1578 1579G_RAID_MD_DECLARE(g_raid_md_jmicron); 1580