1/*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2010 Alexander Motin <mav@FreeBSD.org> 5 * Copyright (c) 2000 - 2008 S��ren Schmidt <sos@FreeBSD.org> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30#include <sys/cdefs.h> 31__FBSDID("$FreeBSD$"); 32 33#include <sys/param.h> 34#include <sys/bio.h> 35#include <sys/endian.h> 36#include <sys/kernel.h> 37#include <sys/kobj.h> 38#include <sys/limits.h> 39#include <sys/lock.h> 40#include <sys/malloc.h> 41#include <sys/mutex.h> 42#include <sys/systm.h> 43#include <sys/taskqueue.h> 44#include <geom/geom.h> 45#include <geom/geom_dbg.h> 46#include "geom/raid/g_raid.h" 47#include "g_raid_md_if.h" 48 49static MALLOC_DEFINE(M_MD_JMICRON, "md_jmicron_data", "GEOM_RAID JMicron metadata"); 50 51#define JMICRON_MAX_DISKS 8 52#define JMICRON_MAX_SPARE 2 53 54struct jmicron_raid_conf { 55 u_int8_t signature[2]; 56#define JMICRON_MAGIC "JM" 57 58 u_int16_t version; 59#define JMICRON_VERSION 0x0001 60 61 u_int16_t checksum; 62 u_int8_t filler_1[10]; 63 u_int32_t disk_id; 64 u_int32_t offset; 65 u_int32_t disk_sectors_high; 66 u_int16_t disk_sectors_low; 67 u_int8_t filler_2[2]; 68 u_int8_t name[16]; 69 u_int8_t type; 70#define JMICRON_T_RAID0 0 71#define JMICRON_T_RAID1 1 72#define JMICRON_T_RAID01 2 73#define JMICRON_T_CONCAT 3 74#define JMICRON_T_RAID5 5 75 76 u_int8_t stripe_shift; 77 u_int16_t flags; 78#define JMICRON_F_READY 0x0001 79#define JMICRON_F_BOOTABLE 0x0002 80#define JMICRON_F_BADSEC 0x0004 81#define JMICRON_F_ACTIVE 0x0010 82#define JMICRON_F_UNSYNC 0x0020 83#define JMICRON_F_NEWEST 0x0040 84 85 u_int8_t filler_3[4]; 86 u_int32_t spare[JMICRON_MAX_SPARE]; 87 u_int32_t disks[JMICRON_MAX_DISKS]; 88#define JMICRON_DISK_MASK 0xFFFFFFF0 89#define JMICRON_SEG_MASK 0x0000000F 90 u_int8_t filler_4[32]; 91 u_int8_t filler_5[384]; 92}; 93 94struct g_raid_md_jmicron_perdisk { 95 struct jmicron_raid_conf *pd_meta; 96 int pd_disk_pos; 97 int pd_disk_id; 98 off_t pd_disk_size; 99}; 100 101struct g_raid_md_jmicron_object { 102 struct g_raid_md_object mdio_base; 103 uint32_t mdio_config_id; 104 struct jmicron_raid_conf *mdio_meta; 105 struct callout mdio_start_co; /* STARTING state timer. */ 106 int mdio_total_disks; 107 int mdio_disks_present; 108 int mdio_started; 109 int mdio_incomplete; 110 struct root_hold_token *mdio_rootmount; /* Root mount delay token. */ 111}; 112 113static g_raid_md_create_t g_raid_md_create_jmicron; 114static g_raid_md_taste_t g_raid_md_taste_jmicron; 115static g_raid_md_event_t g_raid_md_event_jmicron; 116static g_raid_md_ctl_t g_raid_md_ctl_jmicron; 117static g_raid_md_write_t g_raid_md_write_jmicron; 118static g_raid_md_fail_disk_t g_raid_md_fail_disk_jmicron; 119static g_raid_md_free_disk_t g_raid_md_free_disk_jmicron; 120static g_raid_md_free_t g_raid_md_free_jmicron; 121 122static kobj_method_t g_raid_md_jmicron_methods[] = { 123 KOBJMETHOD(g_raid_md_create, g_raid_md_create_jmicron), 124 KOBJMETHOD(g_raid_md_taste, g_raid_md_taste_jmicron), 125 KOBJMETHOD(g_raid_md_event, g_raid_md_event_jmicron), 126 KOBJMETHOD(g_raid_md_ctl, g_raid_md_ctl_jmicron), 127 KOBJMETHOD(g_raid_md_write, g_raid_md_write_jmicron), 128 KOBJMETHOD(g_raid_md_fail_disk, g_raid_md_fail_disk_jmicron), 129 KOBJMETHOD(g_raid_md_free_disk, g_raid_md_free_disk_jmicron), 130 KOBJMETHOD(g_raid_md_free, g_raid_md_free_jmicron), 131 { 0, 0 } 132}; 133 134static struct g_raid_md_class g_raid_md_jmicron_class = { 135 "JMicron", 136 g_raid_md_jmicron_methods, 137 sizeof(struct g_raid_md_jmicron_object), 138 .mdc_enable = 1, 139 .mdc_priority = 100 140}; 141 142static void 143g_raid_md_jmicron_print(struct jmicron_raid_conf *meta) 144{ 145 int k; 146 147 if (g_raid_debug < 1) 148 return; 149 150 printf("********* ATA JMicron RAID Metadata *********\n"); 151 printf("signature <%c%c>\n", meta->signature[0], meta->signature[1]); 152 printf("version %04x\n", meta->version); 153 printf("checksum 0x%04x\n", meta->checksum); 154 printf("disk_id 0x%08x\n", meta->disk_id); 155 printf("offset 0x%08x\n", meta->offset); 156 printf("disk_sectors_high 0x%08x\n", meta->disk_sectors_high); 157 printf("disk_sectors_low 0x%04x\n", meta->disk_sectors_low); 158 printf("name <%.16s>\n", meta->name); 159 printf("type %d\n", meta->type); 160 printf("stripe_shift %d\n", meta->stripe_shift); 161 printf("flags %04x\n", meta->flags); 162 printf("spare "); 163 for (k = 0; k < JMICRON_MAX_SPARE; k++) 164 printf(" 0x%08x", meta->spare[k]); 165 printf("\n"); 166 printf("disks "); 167 for (k = 0; k < JMICRON_MAX_DISKS; k++) 168 printf(" 0x%08x", meta->disks[k]); 169 printf("\n"); 170 printf("=================================================\n"); 171} 172 173static struct jmicron_raid_conf * 174jmicron_meta_copy(struct jmicron_raid_conf *meta) 175{ 176 struct jmicron_raid_conf *nmeta; 177 178 nmeta = malloc(sizeof(*meta), M_MD_JMICRON, M_WAITOK); 179 memcpy(nmeta, meta, sizeof(*meta)); 180 return (nmeta); 181} 182 183static int 184jmicron_meta_total_disks(struct jmicron_raid_conf *meta) 185{ 186 int pos; 187 188 for (pos = 0; pos < JMICRON_MAX_DISKS; pos++) { 189 if (meta->disks[pos] == 0) 190 break; 191 } 192 return (pos); 193} 194 195static int 196jmicron_meta_total_spare(struct jmicron_raid_conf *meta) 197{ 198 int pos, n; 199 200 n = 0; 201 for (pos = 0; pos < JMICRON_MAX_SPARE; pos++) { 202 if (meta->spare[pos] != 0) 203 n++; 204 } 205 return (n); 206} 207 208/* 209 * Generate fake Configuration ID based on disk IDs. 210 * Note: it will change after each disk set change. 211 */ 212static uint32_t 213jmicron_meta_config_id(struct jmicron_raid_conf *meta) 214{ 215 int pos; 216 uint32_t config_id; 217 218 config_id = 0; 219 for (pos = 0; pos < JMICRON_MAX_DISKS; pos++) 220 config_id += meta->disks[pos] << pos; 221 return (config_id); 222} 223 224static void 225jmicron_meta_get_name(struct jmicron_raid_conf *meta, char *buf) 226{ 227 int i; 228 229 strncpy(buf, meta->name, 16); 230 buf[16] = 0; 231 for (i = 15; i >= 0; i--) { 232 if (buf[i] > 0x20) 233 break; 234 buf[i] = 0; 235 } 236} 237 238static void 239jmicron_meta_put_name(struct jmicron_raid_conf *meta, char *buf) 240{ 241 242 memset(meta->name, 0x20, 16); 243 memcpy(meta->name, buf, MIN(strlen(buf), 16)); 244} 245 246static int 247jmicron_meta_find_disk(struct jmicron_raid_conf *meta, uint32_t id) 248{ 249 int pos; 250 251 id &= JMICRON_DISK_MASK; 252 for (pos = 0; pos < JMICRON_MAX_DISKS; pos++) { 253 if ((meta->disks[pos] & JMICRON_DISK_MASK) == id) 254 return (pos); 255 } 256 for (pos = 0; pos < JMICRON_MAX_SPARE; pos++) { 257 if ((meta->spare[pos] & JMICRON_DISK_MASK) == id) 258 return (-3); 259 } 260 return (-1); 261} 262 263static struct jmicron_raid_conf * 264jmicron_meta_read(struct g_consumer *cp) 265{ 266 struct g_provider *pp; 267 struct jmicron_raid_conf *meta; 268 char *buf; 269 int error, i; 270 uint16_t checksum, *ptr; 271 272 pp = cp->provider; 273 274 /* Read the anchor sector. */ 275 buf = g_read_data(cp, 276 pp->mediasize - pp->sectorsize, pp->sectorsize, &error); 277 if (buf == NULL) { 278 G_RAID_DEBUG(1, "Cannot read metadata from %s (error=%d).", 279 pp->name, error); 280 return (NULL); 281 } 282 meta = (struct jmicron_raid_conf *)buf; 283 284 /* Check if this is an JMicron RAID struct */ 285 if (strncmp(meta->signature, JMICRON_MAGIC, strlen(JMICRON_MAGIC))) { 286 G_RAID_DEBUG(1, "JMicron signature check failed on %s", pp->name); 287 g_free(buf); 288 return (NULL); 289 } 290 meta = malloc(sizeof(*meta), M_MD_JMICRON, M_WAITOK); 291 memcpy(meta, buf, min(sizeof(*meta), pp->sectorsize)); 292 g_free(buf); 293 294 /* Check metadata checksum. */ 295 for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i < 64; i++) 296 checksum += *ptr++; 297 if (checksum != 0) { 298 G_RAID_DEBUG(1, "JMicron checksum check failed on %s", pp->name); 299 free(meta, M_MD_JMICRON); 300 return (NULL); 301 } 302 303 return (meta); 304} 305 306static int 307jmicron_meta_write(struct g_consumer *cp, struct jmicron_raid_conf *meta) 308{ 309 struct g_provider *pp; 310 char *buf; 311 int error, i; 312 uint16_t checksum, *ptr; 313 314 pp = cp->provider; 315 316 /* Recalculate checksum for case if metadata were changed. */ 317 meta->checksum = 0; 318 for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i < 64; i++) 319 checksum += *ptr++; 320 meta->checksum -= checksum; 321 322 /* Create and fill buffer. */ 323 buf = malloc(pp->sectorsize, M_MD_JMICRON, M_WAITOK | M_ZERO); 324 memcpy(buf, meta, sizeof(*meta)); 325 326 error = g_write_data(cp, 327 pp->mediasize - pp->sectorsize, buf, pp->sectorsize); 328 if (error != 0) { 329 G_RAID_DEBUG(1, "Cannot write metadata to %s (error=%d).", 330 pp->name, error); 331 } 332 333 free(buf, M_MD_JMICRON); 334 return (error); 335} 336 337static int 338jmicron_meta_erase(struct g_consumer *cp) 339{ 340 struct g_provider *pp; 341 char *buf; 342 int error; 343 344 pp = cp->provider; 345 buf = malloc(pp->sectorsize, M_MD_JMICRON, M_WAITOK | M_ZERO); 346 error = g_write_data(cp, 347 pp->mediasize - pp->sectorsize, buf, pp->sectorsize); 348 if (error != 0) { 349 G_RAID_DEBUG(1, "Cannot erase metadata on %s (error=%d).", 350 pp->name, error); 351 } 352 free(buf, M_MD_JMICRON); 353 return (error); 354} 355 356static struct g_raid_disk * 357g_raid_md_jmicron_get_disk(struct g_raid_softc *sc, int id) 358{ 359 struct g_raid_disk *disk; 360 struct g_raid_md_jmicron_perdisk *pd; 361 362 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 363 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 364 if (pd->pd_disk_pos == id) 365 break; 366 } 367 return (disk); 368} 369 370static int 371g_raid_md_jmicron_supported(int level, int qual, int disks, int force) 372{ 373 374 if (disks > 8) 375 return (0); 376 switch (level) { 377 case G_RAID_VOLUME_RL_RAID0: 378 if (disks < 1) 379 return (0); 380 if (!force && (disks < 2 || disks > 6)) 381 return (0); 382 break; 383 case G_RAID_VOLUME_RL_RAID1: 384 if (disks < 1) 385 return (0); 386 if (!force && (disks != 2)) 387 return (0); 388 break; 389 case G_RAID_VOLUME_RL_RAID1E: 390 if (disks < 2) 391 return (0); 392 if (!force && (disks != 4)) 393 return (0); 394 break; 395 case G_RAID_VOLUME_RL_SINGLE: 396 if (disks != 1) 397 return (0); 398 if (!force) 399 return (0); 400 break; 401 case G_RAID_VOLUME_RL_CONCAT: 402 if (disks < 2) 403 return (0); 404 break; 405 case G_RAID_VOLUME_RL_RAID5: 406 if (disks < 3) 407 return (0); 408 if (qual != G_RAID_VOLUME_RLQ_R5LA) 409 return (0); 410 if (!force) 411 return (0); 412 break; 413 default: 414 return (0); 415 } 416 if (level != G_RAID_VOLUME_RL_RAID5 && qual != G_RAID_VOLUME_RLQ_NONE) 417 return (0); 418 return (1); 419} 420 421static int 422g_raid_md_jmicron_start_disk(struct g_raid_disk *disk) 423{ 424 struct g_raid_softc *sc; 425 struct g_raid_subdisk *sd, *tmpsd; 426 struct g_raid_disk *olddisk, *tmpdisk; 427 struct g_raid_md_object *md; 428 struct g_raid_md_jmicron_object *mdi; 429 struct g_raid_md_jmicron_perdisk *pd, *oldpd; 430 struct jmicron_raid_conf *meta; 431 int disk_pos, resurrection = 0; 432 433 sc = disk->d_softc; 434 md = sc->sc_md; 435 mdi = (struct g_raid_md_jmicron_object *)md; 436 meta = mdi->mdio_meta; 437 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 438 olddisk = NULL; 439 440 /* Find disk position in metadata by its serial. */ 441 if (pd->pd_meta != NULL) 442 disk_pos = jmicron_meta_find_disk(meta, pd->pd_disk_id); 443 else 444 disk_pos = -1; 445 if (disk_pos < 0) { 446 G_RAID_DEBUG1(1, sc, "Unknown, probably new or stale disk"); 447 /* If we are in the start process, that's all for now. */ 448 if (!mdi->mdio_started) 449 goto nofit; 450 /* 451 * If we have already started - try to get use of the disk. 452 * Try to replace OFFLINE disks first, then FAILED. 453 */ 454 TAILQ_FOREACH(tmpdisk, &sc->sc_disks, d_next) { 455 if (tmpdisk->d_state != G_RAID_DISK_S_OFFLINE && 456 tmpdisk->d_state != G_RAID_DISK_S_FAILED) 457 continue; 458 /* Make sure this disk is big enough. */ 459 TAILQ_FOREACH(sd, &tmpdisk->d_subdisks, sd_next) { 460 if (sd->sd_offset + sd->sd_size + 512 > 461 pd->pd_disk_size) { 462 G_RAID_DEBUG1(1, sc, 463 "Disk too small (%ju < %ju)", 464 pd->pd_disk_size, 465 sd->sd_offset + sd->sd_size + 512); 466 break; 467 } 468 } 469 if (sd != NULL) 470 continue; 471 if (tmpdisk->d_state == G_RAID_DISK_S_OFFLINE) { 472 olddisk = tmpdisk; 473 break; 474 } else if (olddisk == NULL) 475 olddisk = tmpdisk; 476 } 477 if (olddisk == NULL) { 478nofit: 479 if (disk_pos == -3 || pd->pd_disk_pos == -3) { 480 g_raid_change_disk_state(disk, 481 G_RAID_DISK_S_SPARE); 482 return (1); 483 } else { 484 g_raid_change_disk_state(disk, 485 G_RAID_DISK_S_STALE); 486 return (0); 487 } 488 } 489 oldpd = (struct g_raid_md_jmicron_perdisk *)olddisk->d_md_data; 490 disk_pos = oldpd->pd_disk_pos; 491 resurrection = 1; 492 } 493 494 if (olddisk == NULL) { 495 /* Find placeholder by position. */ 496 olddisk = g_raid_md_jmicron_get_disk(sc, disk_pos); 497 if (olddisk == NULL) 498 panic("No disk at position %d!", disk_pos); 499 if (olddisk->d_state != G_RAID_DISK_S_OFFLINE) { 500 G_RAID_DEBUG1(1, sc, "More than one disk for pos %d", 501 disk_pos); 502 g_raid_change_disk_state(disk, G_RAID_DISK_S_STALE); 503 return (0); 504 } 505 oldpd = (struct g_raid_md_jmicron_perdisk *)olddisk->d_md_data; 506 } 507 508 /* Replace failed disk or placeholder with new disk. */ 509 TAILQ_FOREACH_SAFE(sd, &olddisk->d_subdisks, sd_next, tmpsd) { 510 TAILQ_REMOVE(&olddisk->d_subdisks, sd, sd_next); 511 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 512 sd->sd_disk = disk; 513 } 514 oldpd->pd_disk_pos = -2; 515 pd->pd_disk_pos = disk_pos; 516 /* Update global metadata just in case. */ 517 meta->disks[disk_pos] = pd->pd_disk_id; 518 519 /* If it was placeholder -- destroy it. */ 520 if (olddisk->d_state == G_RAID_DISK_S_OFFLINE) { 521 g_raid_destroy_disk(olddisk); 522 } else { 523 /* Otherwise, make it STALE_FAILED. */ 524 g_raid_change_disk_state(olddisk, G_RAID_DISK_S_STALE_FAILED); 525 } 526 527 /* Welcome the new disk. */ 528 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE); 529 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 530 /* 531 * Different disks may have different sizes/offsets, 532 * especially in concat mode. Update. 533 */ 534 if (!resurrection) { 535 sd->sd_offset = 536 (off_t)pd->pd_meta->offset * 16 * 512; //ZZZ 537 sd->sd_size = 538 (((off_t)pd->pd_meta->disk_sectors_high << 16) + 539 pd->pd_meta->disk_sectors_low) * 512; 540 } 541 542 if (resurrection) { 543 /* Stale disk, almost same as new. */ 544 g_raid_change_subdisk_state(sd, 545 G_RAID_SUBDISK_S_NEW); 546 } else if ((meta->flags & JMICRON_F_BADSEC) != 0 && 547 (pd->pd_meta->flags & JMICRON_F_BADSEC) == 0) { 548 /* Cold-inserted or rebuilding disk. */ 549 g_raid_change_subdisk_state(sd, 550 G_RAID_SUBDISK_S_NEW); 551 } else if (pd->pd_meta->flags & JMICRON_F_UNSYNC) { 552 /* Dirty or resyncing disk.. */ 553 g_raid_change_subdisk_state(sd, 554 G_RAID_SUBDISK_S_STALE); 555 } else { 556 /* Up to date disk. */ 557 g_raid_change_subdisk_state(sd, 558 G_RAID_SUBDISK_S_ACTIVE); 559 } 560 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 561 G_RAID_EVENT_SUBDISK); 562 } 563 564 /* Update status of our need for spare. */ 565 if (mdi->mdio_started) { 566 mdi->mdio_incomplete = 567 (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < 568 mdi->mdio_total_disks); 569 } 570 571 return (resurrection); 572} 573 574static void 575g_disk_md_jmicron_retaste(void *arg, int pending) 576{ 577 578 G_RAID_DEBUG(1, "Array is not complete, trying to retaste."); 579 g_retaste(&g_raid_class); 580 free(arg, M_MD_JMICRON); 581} 582 583static void 584g_raid_md_jmicron_refill(struct g_raid_softc *sc) 585{ 586 struct g_raid_md_object *md; 587 struct g_raid_md_jmicron_object *mdi; 588 struct g_raid_disk *disk; 589 struct task *task; 590 int update, na; 591 592 md = sc->sc_md; 593 mdi = (struct g_raid_md_jmicron_object *)md; 594 update = 0; 595 do { 596 /* Make sure we miss anything. */ 597 na = g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE); 598 if (na == mdi->mdio_total_disks) 599 break; 600 601 G_RAID_DEBUG1(1, md->mdo_softc, 602 "Array is not complete (%d of %d), " 603 "trying to refill.", na, mdi->mdio_total_disks); 604 605 /* Try to get use some of STALE disks. */ 606 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 607 if (disk->d_state == G_RAID_DISK_S_STALE) { 608 update += g_raid_md_jmicron_start_disk(disk); 609 if (disk->d_state == G_RAID_DISK_S_ACTIVE) 610 break; 611 } 612 } 613 if (disk != NULL) 614 continue; 615 616 /* Try to get use some of SPARE disks. */ 617 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 618 if (disk->d_state == G_RAID_DISK_S_SPARE) { 619 update += g_raid_md_jmicron_start_disk(disk); 620 if (disk->d_state == G_RAID_DISK_S_ACTIVE) 621 break; 622 } 623 } 624 } while (disk != NULL); 625 626 /* Write new metadata if we changed something. */ 627 if (update) 628 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 629 630 /* Update status of our need for spare. */ 631 mdi->mdio_incomplete = (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < 632 mdi->mdio_total_disks); 633 634 /* Request retaste hoping to find spare. */ 635 if (mdi->mdio_incomplete) { 636 task = malloc(sizeof(struct task), 637 M_MD_JMICRON, M_WAITOK | M_ZERO); 638 TASK_INIT(task, 0, g_disk_md_jmicron_retaste, task); 639 taskqueue_enqueue(taskqueue_swi, task); 640 } 641} 642 643static void 644g_raid_md_jmicron_start(struct g_raid_softc *sc) 645{ 646 struct g_raid_md_object *md; 647 struct g_raid_md_jmicron_object *mdi; 648 struct g_raid_md_jmicron_perdisk *pd; 649 struct jmicron_raid_conf *meta; 650 struct g_raid_volume *vol; 651 struct g_raid_subdisk *sd; 652 struct g_raid_disk *disk; 653 off_t size; 654 int j, disk_pos; 655 char buf[17]; 656 657 md = sc->sc_md; 658 mdi = (struct g_raid_md_jmicron_object *)md; 659 meta = mdi->mdio_meta; 660 661 /* Create volumes and subdisks. */ 662 jmicron_meta_get_name(meta, buf); 663 vol = g_raid_create_volume(sc, buf, -1); 664 size = ((off_t)meta->disk_sectors_high << 16) + meta->disk_sectors_low; 665 size *= 512; //ZZZ 666 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_NONE; 667 if (meta->type == JMICRON_T_RAID0) { 668 vol->v_raid_level = G_RAID_VOLUME_RL_RAID0; 669 vol->v_mediasize = size * mdi->mdio_total_disks; 670 } else if (meta->type == JMICRON_T_RAID1) { 671 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1; 672 vol->v_mediasize = size; 673 } else if (meta->type == JMICRON_T_RAID01) { 674 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1E; 675 vol->v_mediasize = size * mdi->mdio_total_disks / 2; 676 } else if (meta->type == JMICRON_T_CONCAT) { 677 if (mdi->mdio_total_disks == 1) 678 vol->v_raid_level = G_RAID_VOLUME_RL_SINGLE; 679 else 680 vol->v_raid_level = G_RAID_VOLUME_RL_CONCAT; 681 vol->v_mediasize = 0; 682 } else if (meta->type == JMICRON_T_RAID5) { 683 vol->v_raid_level = G_RAID_VOLUME_RL_RAID5; 684 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_R5LA; 685 vol->v_mediasize = size * (mdi->mdio_total_disks - 1); 686 } else { 687 vol->v_raid_level = G_RAID_VOLUME_RL_UNKNOWN; 688 vol->v_mediasize = 0; 689 } 690 vol->v_strip_size = 1024 << meta->stripe_shift; //ZZZ 691 vol->v_disks_count = mdi->mdio_total_disks; 692 vol->v_sectorsize = 512; //ZZZ 693 for (j = 0; j < vol->v_disks_count; j++) { 694 sd = &vol->v_subdisks[j]; 695 sd->sd_offset = (off_t)meta->offset * 16 * 512; //ZZZ 696 sd->sd_size = size; 697 } 698 g_raid_start_volume(vol); 699 700 /* Create disk placeholders to store data for later writing. */ 701 for (disk_pos = 0; disk_pos < mdi->mdio_total_disks; disk_pos++) { 702 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 703 pd->pd_disk_pos = disk_pos; 704 pd->pd_disk_id = meta->disks[disk_pos]; 705 disk = g_raid_create_disk(sc); 706 disk->d_md_data = (void *)pd; 707 disk->d_state = G_RAID_DISK_S_OFFLINE; 708 sd = &vol->v_subdisks[disk_pos]; 709 sd->sd_disk = disk; 710 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 711 } 712 713 /* Make all disks found till the moment take their places. */ 714 do { 715 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 716 if (disk->d_state == G_RAID_DISK_S_NONE) { 717 g_raid_md_jmicron_start_disk(disk); 718 break; 719 } 720 } 721 } while (disk != NULL); 722 723 mdi->mdio_started = 1; 724 G_RAID_DEBUG1(0, sc, "Array started."); 725 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 726 727 /* Pickup any STALE/SPARE disks to refill array if needed. */ 728 g_raid_md_jmicron_refill(sc); 729 730 g_raid_event_send(vol, G_RAID_VOLUME_E_START, G_RAID_EVENT_VOLUME); 731 732 callout_stop(&mdi->mdio_start_co); 733 G_RAID_DEBUG1(1, sc, "root_mount_rel %p", mdi->mdio_rootmount); 734 root_mount_rel(mdi->mdio_rootmount); 735 mdi->mdio_rootmount = NULL; 736} 737 738static void 739g_raid_md_jmicron_new_disk(struct g_raid_disk *disk) 740{ 741 struct g_raid_softc *sc; 742 struct g_raid_md_object *md; 743 struct g_raid_md_jmicron_object *mdi; 744 struct jmicron_raid_conf *pdmeta; 745 struct g_raid_md_jmicron_perdisk *pd; 746 747 sc = disk->d_softc; 748 md = sc->sc_md; 749 mdi = (struct g_raid_md_jmicron_object *)md; 750 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 751 pdmeta = pd->pd_meta; 752 753 if (mdi->mdio_started) { 754 if (g_raid_md_jmicron_start_disk(disk)) 755 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 756 } else { 757 /* 758 * If we haven't started yet - update common metadata 759 * to get subdisks details, avoiding data from spare disks. 760 */ 761 if (mdi->mdio_meta == NULL || 762 jmicron_meta_find_disk(mdi->mdio_meta, 763 mdi->mdio_meta->disk_id) == -3) { 764 if (mdi->mdio_meta != NULL) 765 free(mdi->mdio_meta, M_MD_JMICRON); 766 mdi->mdio_meta = jmicron_meta_copy(pdmeta); 767 mdi->mdio_total_disks = jmicron_meta_total_disks(pdmeta); 768 } 769 mdi->mdio_meta->flags |= pdmeta->flags & JMICRON_F_BADSEC; 770 771 mdi->mdio_disks_present++; 772 G_RAID_DEBUG1(1, sc, "Matching disk (%d of %d+%d up)", 773 mdi->mdio_disks_present, 774 mdi->mdio_total_disks, 775 jmicron_meta_total_spare(mdi->mdio_meta)); 776 777 /* If we collected all needed disks - start array. */ 778 if (mdi->mdio_disks_present == mdi->mdio_total_disks + 779 jmicron_meta_total_spare(mdi->mdio_meta)) 780 g_raid_md_jmicron_start(sc); 781 } 782} 783 784static void 785g_raid_jmicron_go(void *arg) 786{ 787 struct g_raid_softc *sc; 788 struct g_raid_md_object *md; 789 struct g_raid_md_jmicron_object *mdi; 790 791 sc = arg; 792 md = sc->sc_md; 793 mdi = (struct g_raid_md_jmicron_object *)md; 794 if (!mdi->mdio_started) { 795 G_RAID_DEBUG1(0, sc, "Force array start due to timeout."); 796 g_raid_event_send(sc, G_RAID_NODE_E_START, 0); 797 } 798} 799 800static int 801g_raid_md_create_jmicron(struct g_raid_md_object *md, struct g_class *mp, 802 struct g_geom **gp) 803{ 804 struct g_raid_softc *sc; 805 struct g_raid_md_jmicron_object *mdi; 806 char name[16]; 807 808 mdi = (struct g_raid_md_jmicron_object *)md; 809 mdi->mdio_config_id = arc4random(); 810 snprintf(name, sizeof(name), "JMicron-%08x", mdi->mdio_config_id); 811 sc = g_raid_create_node(mp, name, md); 812 if (sc == NULL) 813 return (G_RAID_MD_TASTE_FAIL); 814 md->mdo_softc = sc; 815 *gp = sc->sc_geom; 816 return (G_RAID_MD_TASTE_NEW); 817} 818 819static int 820g_raid_md_taste_jmicron(struct g_raid_md_object *md, struct g_class *mp, 821 struct g_consumer *cp, struct g_geom **gp) 822{ 823 struct g_consumer *rcp; 824 struct g_provider *pp; 825 struct g_raid_md_jmicron_object *mdi, *mdi1; 826 struct g_raid_softc *sc; 827 struct g_raid_disk *disk; 828 struct jmicron_raid_conf *meta; 829 struct g_raid_md_jmicron_perdisk *pd; 830 struct g_geom *geom; 831 int disk_pos, result, spare, len; 832 char name[16]; 833 uint16_t vendor; 834 835 G_RAID_DEBUG(1, "Tasting JMicron on %s", cp->provider->name); 836 mdi = (struct g_raid_md_jmicron_object *)md; 837 pp = cp->provider; 838 839 /* Read metadata from device. */ 840 meta = NULL; 841 g_topology_unlock(); 842 vendor = 0xffff; 843 len = sizeof(vendor); 844 if (pp->geom->rank == 1) 845 g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor); 846 meta = jmicron_meta_read(cp); 847 g_topology_lock(); 848 if (meta == NULL) { 849 if (g_raid_aggressive_spare) { 850 if (vendor == 0x197b) { 851 G_RAID_DEBUG(1, 852 "No JMicron metadata, forcing spare."); 853 spare = 2; 854 goto search; 855 } else { 856 G_RAID_DEBUG(1, 857 "JMicron vendor mismatch 0x%04x != 0x197b", 858 vendor); 859 } 860 } 861 return (G_RAID_MD_TASTE_FAIL); 862 } 863 864 /* Check this disk position in obtained metadata. */ 865 disk_pos = jmicron_meta_find_disk(meta, meta->disk_id); 866 if (disk_pos == -1) { 867 G_RAID_DEBUG(1, "JMicron disk_id %08x not found", 868 meta->disk_id); 869 goto fail1; 870 } 871 872 /* Metadata valid. Print it. */ 873 g_raid_md_jmicron_print(meta); 874 G_RAID_DEBUG(1, "JMicron disk position %d", disk_pos); 875 spare = (disk_pos == -2) ? 1 : 0; 876 877search: 878 /* Search for matching node. */ 879 sc = NULL; 880 mdi1 = NULL; 881 LIST_FOREACH(geom, &mp->geom, geom) { 882 sc = geom->softc; 883 if (sc == NULL) 884 continue; 885 if (sc->sc_stopping != 0) 886 continue; 887 if (sc->sc_md->mdo_class != md->mdo_class) 888 continue; 889 mdi1 = (struct g_raid_md_jmicron_object *)sc->sc_md; 890 if (spare == 2) { 891 if (mdi1->mdio_incomplete) 892 break; 893 } else { 894 if (mdi1->mdio_config_id == 895 jmicron_meta_config_id(meta)) 896 break; 897 } 898 } 899 900 /* Found matching node. */ 901 if (geom != NULL) { 902 G_RAID_DEBUG(1, "Found matching array %s", sc->sc_name); 903 result = G_RAID_MD_TASTE_EXISTING; 904 905 } else if (spare) { /* Not found needy node -- left for later. */ 906 G_RAID_DEBUG(1, "Spare is not needed at this time"); 907 goto fail1; 908 909 } else { /* Not found matching node -- create one. */ 910 result = G_RAID_MD_TASTE_NEW; 911 mdi->mdio_config_id = jmicron_meta_config_id(meta); 912 snprintf(name, sizeof(name), "JMicron-%08x", 913 mdi->mdio_config_id); 914 sc = g_raid_create_node(mp, name, md); 915 md->mdo_softc = sc; 916 geom = sc->sc_geom; 917 callout_init(&mdi->mdio_start_co, 1); 918 callout_reset(&mdi->mdio_start_co, g_raid_start_timeout * hz, 919 g_raid_jmicron_go, sc); 920 mdi->mdio_rootmount = root_mount_hold("GRAID-JMicron"); 921 G_RAID_DEBUG1(1, sc, "root_mount_hold %p", mdi->mdio_rootmount); 922 } 923 924 /* There is no return after this point, so we close passed consumer. */ 925 g_access(cp, -1, 0, 0); 926 927 rcp = g_new_consumer(geom); 928 rcp->flags |= G_CF_DIRECT_RECEIVE; 929 g_attach(rcp, pp); 930 if (g_access(rcp, 1, 1, 1) != 0) 931 ; //goto fail1; 932 933 g_topology_unlock(); 934 sx_xlock(&sc->sc_lock); 935 936 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 937 pd->pd_meta = meta; 938 if (spare == 2) { 939 pd->pd_disk_pos = -3; 940 pd->pd_disk_id = arc4random() & JMICRON_DISK_MASK; 941 } else { 942 pd->pd_disk_pos = -1; 943 pd->pd_disk_id = meta->disk_id; 944 } 945 pd->pd_disk_size = pp->mediasize; 946 disk = g_raid_create_disk(sc); 947 disk->d_md_data = (void *)pd; 948 disk->d_consumer = rcp; 949 rcp->private = disk; 950 951 g_raid_get_disk_info(disk); 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 if (*nargs < 4) { 1047 gctl_error(req, "Invalid number of arguments."); 1048 return (-1); 1049 } 1050 volname = gctl_get_asciiparam(req, "arg1"); 1051 if (volname == NULL) { 1052 gctl_error(req, "No volume name."); 1053 return (-2); 1054 } 1055 levelname = gctl_get_asciiparam(req, "arg2"); 1056 if (levelname == NULL) { 1057 gctl_error(req, "No RAID level."); 1058 return (-3); 1059 } 1060 if (strcasecmp(levelname, "RAID5") == 0) 1061 levelname = "RAID5-LA"; 1062 if (g_raid_volume_str2level(levelname, &level, &qual)) { 1063 gctl_error(req, "Unknown RAID level '%s'.", levelname); 1064 return (-4); 1065 } 1066 numdisks = *nargs - 3; 1067 force = gctl_get_paraml(req, "force", sizeof(*force)); 1068 if (!g_raid_md_jmicron_supported(level, qual, numdisks, 1069 force ? *force : 0)) { 1070 gctl_error(req, "Unsupported RAID level " 1071 "(0x%02x/0x%02x), or number of disks (%d).", 1072 level, qual, numdisks); 1073 return (-5); 1074 } 1075 1076 /* Search for disks, connect them and probe. */ 1077 size = 0x7fffffffffffffffllu; 1078 sectorsize = 0; 1079 for (i = 0; i < numdisks; i++) { 1080 snprintf(arg, sizeof(arg), "arg%d", i + 3); 1081 diskname = gctl_get_asciiparam(req, arg); 1082 if (diskname == NULL) { 1083 gctl_error(req, "No disk name (%s).", arg); 1084 error = -6; 1085 break; 1086 } 1087 if (strcmp(diskname, "NONE") == 0) { 1088 cp = NULL; 1089 pp = NULL; 1090 } else { 1091 g_topology_lock(); 1092 cp = g_raid_open_consumer(sc, diskname); 1093 if (cp == NULL) { 1094 gctl_error(req, "Can't open '%s'.", 1095 diskname); 1096 g_topology_unlock(); 1097 error = -7; 1098 break; 1099 } 1100 pp = cp->provider; 1101 } 1102 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 1103 pd->pd_disk_pos = i; 1104 pd->pd_disk_id = arc4random() & JMICRON_DISK_MASK; 1105 disk = g_raid_create_disk(sc); 1106 disk->d_md_data = (void *)pd; 1107 disk->d_consumer = cp; 1108 if (cp == NULL) 1109 continue; 1110 cp->private = disk; 1111 g_topology_unlock(); 1112 1113 g_raid_get_disk_info(disk); 1114 1115 pd->pd_disk_size = pp->mediasize; 1116 if (size > pp->mediasize) 1117 size = pp->mediasize; 1118 if (sectorsize < pp->sectorsize) 1119 sectorsize = pp->sectorsize; 1120 } 1121 if (error != 0) 1122 return (error); 1123 1124 if (sectorsize <= 0) { 1125 gctl_error(req, "Can't get sector size."); 1126 return (-8); 1127 } 1128 1129 /* Reserve space for metadata. */ 1130 size -= sectorsize; 1131 1132 /* Handle size argument. */ 1133 len = sizeof(*sizearg); 1134 sizearg = gctl_get_param(req, "size", &len); 1135 if (sizearg != NULL && len == sizeof(*sizearg) && 1136 *sizearg > 0) { 1137 if (*sizearg > size) { 1138 gctl_error(req, "Size too big %lld > %lld.", 1139 (long long)*sizearg, (long long)size); 1140 return (-9); 1141 } 1142 size = *sizearg; 1143 } 1144 1145 /* Handle strip argument. */ 1146 strip = 131072; 1147 len = sizeof(*striparg); 1148 striparg = gctl_get_param(req, "strip", &len); 1149 if (striparg != NULL && len == sizeof(*striparg) && 1150 *striparg > 0) { 1151 if (*striparg < sectorsize) { 1152 gctl_error(req, "Strip size too small."); 1153 return (-10); 1154 } 1155 if (*striparg % sectorsize != 0) { 1156 gctl_error(req, "Incorrect strip size."); 1157 return (-11); 1158 } 1159 if (strip > 65535 * sectorsize) { 1160 gctl_error(req, "Strip size too big."); 1161 return (-12); 1162 } 1163 strip = *striparg; 1164 } 1165 1166 /* Round size down to strip or sector. */ 1167 if (level == G_RAID_VOLUME_RL_RAID1) 1168 size -= (size % sectorsize); 1169 else if (level == G_RAID_VOLUME_RL_RAID1E && 1170 (numdisks & 1) != 0) 1171 size -= (size % (2 * strip)); 1172 else 1173 size -= (size % strip); 1174 if (size <= 0) { 1175 gctl_error(req, "Size too small."); 1176 return (-13); 1177 } 1178 if (size > 0xffffffffffffllu * sectorsize) { 1179 gctl_error(req, "Size too big."); 1180 return (-14); 1181 } 1182 1183 /* We have all we need, create things: volume, ... */ 1184 mdi->mdio_total_disks = numdisks; 1185 mdi->mdio_started = 1; 1186 vol = g_raid_create_volume(sc, volname, -1); 1187 vol->v_md_data = (void *)(intptr_t)0; 1188 vol->v_raid_level = level; 1189 vol->v_raid_level_qualifier = qual; 1190 vol->v_strip_size = strip; 1191 vol->v_disks_count = numdisks; 1192 if (level == G_RAID_VOLUME_RL_RAID0 || 1193 level == G_RAID_VOLUME_RL_CONCAT || 1194 level == G_RAID_VOLUME_RL_SINGLE) 1195 vol->v_mediasize = size * numdisks; 1196 else if (level == G_RAID_VOLUME_RL_RAID1) 1197 vol->v_mediasize = size; 1198 else if (level == G_RAID_VOLUME_RL_RAID5) 1199 vol->v_mediasize = size * (numdisks - 1); 1200 else { /* RAID1E */ 1201 vol->v_mediasize = ((size * numdisks) / strip / 2) * 1202 strip; 1203 } 1204 vol->v_sectorsize = sectorsize; 1205 g_raid_start_volume(vol); 1206 1207 /* , and subdisks. */ 1208 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1209 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1210 sd = &vol->v_subdisks[pd->pd_disk_pos]; 1211 sd->sd_disk = disk; 1212 sd->sd_offset = 0; 1213 sd->sd_size = size; 1214 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 1215 if (sd->sd_disk->d_consumer != NULL) { 1216 g_raid_change_disk_state(disk, 1217 G_RAID_DISK_S_ACTIVE); 1218 g_raid_change_subdisk_state(sd, 1219 G_RAID_SUBDISK_S_ACTIVE); 1220 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 1221 G_RAID_EVENT_SUBDISK); 1222 } else { 1223 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1224 } 1225 } 1226 1227 /* Write metadata based on created entities. */ 1228 G_RAID_DEBUG1(0, sc, "Array started."); 1229 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1230 1231 /* Pickup any STALE/SPARE disks to refill array if needed. */ 1232 g_raid_md_jmicron_refill(sc); 1233 1234 g_raid_event_send(vol, G_RAID_VOLUME_E_START, 1235 G_RAID_EVENT_VOLUME); 1236 return (0); 1237 } 1238 if (strcmp(verb, "delete") == 0) { 1239 /* Check if some volume is still open. */ 1240 force = gctl_get_paraml(req, "force", sizeof(*force)); 1241 if (force != NULL && *force == 0 && 1242 g_raid_nopens(sc) != 0) { 1243 gctl_error(req, "Some volume is still open."); 1244 return (-4); 1245 } 1246 1247 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1248 if (disk->d_consumer) 1249 jmicron_meta_erase(disk->d_consumer); 1250 } 1251 g_raid_destroy_node(sc, 0); 1252 return (0); 1253 } 1254 if (strcmp(verb, "remove") == 0 || 1255 strcmp(verb, "fail") == 0) { 1256 if (*nargs < 2) { 1257 gctl_error(req, "Invalid number of arguments."); 1258 return (-1); 1259 } 1260 for (i = 1; i < *nargs; i++) { 1261 snprintf(arg, sizeof(arg), "arg%d", i); 1262 diskname = gctl_get_asciiparam(req, arg); 1263 if (diskname == NULL) { 1264 gctl_error(req, "No disk name (%s).", arg); 1265 error = -2; 1266 break; 1267 } 1268 if (strncmp(diskname, _PATH_DEV, 5) == 0) 1269 diskname += 5; 1270 1271 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1272 if (disk->d_consumer != NULL && 1273 disk->d_consumer->provider != NULL && 1274 strcmp(disk->d_consumer->provider->name, 1275 diskname) == 0) 1276 break; 1277 } 1278 if (disk == NULL) { 1279 gctl_error(req, "Disk '%s' not found.", 1280 diskname); 1281 error = -3; 1282 break; 1283 } 1284 1285 if (strcmp(verb, "fail") == 0) { 1286 g_raid_md_fail_disk_jmicron(md, NULL, disk); 1287 continue; 1288 } 1289 1290 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1291 1292 /* Erase metadata on deleting disk. */ 1293 jmicron_meta_erase(disk->d_consumer); 1294 1295 /* If disk was assigned, just update statuses. */ 1296 if (pd->pd_disk_pos >= 0) { 1297 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1298 g_raid_kill_consumer(sc, disk->d_consumer); 1299 disk->d_consumer = NULL; 1300 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 1301 g_raid_change_subdisk_state(sd, 1302 G_RAID_SUBDISK_S_NONE); 1303 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED, 1304 G_RAID_EVENT_SUBDISK); 1305 } 1306 } else { 1307 /* Otherwise -- delete. */ 1308 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 1309 g_raid_destroy_disk(disk); 1310 } 1311 } 1312 1313 /* Write updated metadata to remaining disks. */ 1314 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1315 1316 /* Check if anything left except placeholders. */ 1317 if (g_raid_ndisks(sc, -1) == 1318 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1319 g_raid_destroy_node(sc, 0); 1320 else 1321 g_raid_md_jmicron_refill(sc); 1322 return (error); 1323 } 1324 if (strcmp(verb, "insert") == 0) { 1325 if (*nargs < 2) { 1326 gctl_error(req, "Invalid number of arguments."); 1327 return (-1); 1328 } 1329 update = 0; 1330 for (i = 1; i < *nargs; i++) { 1331 /* Get disk name. */ 1332 snprintf(arg, sizeof(arg), "arg%d", i); 1333 diskname = gctl_get_asciiparam(req, arg); 1334 if (diskname == NULL) { 1335 gctl_error(req, "No disk name (%s).", arg); 1336 error = -3; 1337 break; 1338 } 1339 1340 /* Try to find provider with specified name. */ 1341 g_topology_lock(); 1342 cp = g_raid_open_consumer(sc, diskname); 1343 if (cp == NULL) { 1344 gctl_error(req, "Can't open disk '%s'.", 1345 diskname); 1346 g_topology_unlock(); 1347 error = -4; 1348 break; 1349 } 1350 pp = cp->provider; 1351 1352 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 1353 pd->pd_disk_pos = -3; 1354 pd->pd_disk_id = arc4random() & JMICRON_DISK_MASK; 1355 pd->pd_disk_size = pp->mediasize; 1356 1357 disk = g_raid_create_disk(sc); 1358 disk->d_consumer = cp; 1359 disk->d_md_data = (void *)pd; 1360 cp->private = disk; 1361 g_topology_unlock(); 1362 1363 g_raid_get_disk_info(disk); 1364 1365 /* Welcome the "new" disk. */ 1366 update += g_raid_md_jmicron_start_disk(disk); 1367 if (disk->d_state != G_RAID_DISK_S_ACTIVE && 1368 disk->d_state != G_RAID_DISK_S_SPARE) { 1369 gctl_error(req, "Disk '%s' doesn't fit.", 1370 diskname); 1371 g_raid_destroy_disk(disk); 1372 error = -8; 1373 break; 1374 } 1375 } 1376 1377 /* Write new metadata if we changed something. */ 1378 if (update) 1379 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1380 return (error); 1381 } 1382 gctl_error(req, "Command '%s' is not supported.", verb); 1383 return (-100); 1384} 1385 1386static int 1387g_raid_md_write_jmicron(struct g_raid_md_object *md, struct g_raid_volume *tvol, 1388 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1389{ 1390 struct g_raid_softc *sc; 1391 struct g_raid_volume *vol; 1392 struct g_raid_subdisk *sd; 1393 struct g_raid_disk *disk; 1394 struct g_raid_md_jmicron_object *mdi; 1395 struct g_raid_md_jmicron_perdisk *pd; 1396 struct jmicron_raid_conf *meta; 1397 int i, spares; 1398 1399 sc = md->mdo_softc; 1400 mdi = (struct g_raid_md_jmicron_object *)md; 1401 1402 if (sc->sc_stopping == G_RAID_DESTROY_HARD) 1403 return (0); 1404 1405 /* There is only one volume. */ 1406 vol = TAILQ_FIRST(&sc->sc_volumes); 1407 1408 /* Fill global fields. */ 1409 meta = malloc(sizeof(*meta), M_MD_JMICRON, M_WAITOK | M_ZERO); 1410 strncpy(meta->signature, JMICRON_MAGIC, 2); 1411 meta->version = JMICRON_VERSION; 1412 jmicron_meta_put_name(meta, vol->v_name); 1413 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID0) 1414 meta->type = JMICRON_T_RAID0; 1415 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) 1416 meta->type = JMICRON_T_RAID1; 1417 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) 1418 meta->type = JMICRON_T_RAID01; 1419 else if (vol->v_raid_level == G_RAID_VOLUME_RL_CONCAT || 1420 vol->v_raid_level == G_RAID_VOLUME_RL_SINGLE) 1421 meta->type = JMICRON_T_CONCAT; 1422 else 1423 meta->type = JMICRON_T_RAID5; 1424 meta->stripe_shift = fls(vol->v_strip_size / 2048); 1425 meta->flags = JMICRON_F_READY | JMICRON_F_BOOTABLE; 1426 for (i = 0; i < vol->v_disks_count; i++) { 1427 sd = &vol->v_subdisks[i]; 1428 if (sd->sd_disk == NULL || sd->sd_disk->d_md_data == NULL) 1429 meta->disks[i] = 0xffffffff; 1430 else { 1431 pd = (struct g_raid_md_jmicron_perdisk *) 1432 sd->sd_disk->d_md_data; 1433 meta->disks[i] = pd->pd_disk_id; 1434 } 1435 if (sd->sd_state < G_RAID_SUBDISK_S_STALE) 1436 meta->flags |= JMICRON_F_BADSEC; 1437 if (vol->v_dirty) 1438 meta->flags |= JMICRON_F_UNSYNC; 1439 } 1440 1441 /* Put spares to their slots. */ 1442 spares = 0; 1443 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1444 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1445 if (disk->d_state != G_RAID_DISK_S_SPARE) 1446 continue; 1447 meta->spare[spares] = pd->pd_disk_id; 1448 if (++spares >= 2) 1449 break; 1450 } 1451 1452 /* We are done. Print meta data and store them to disks. */ 1453 if (mdi->mdio_meta != NULL) 1454 free(mdi->mdio_meta, M_MD_JMICRON); 1455 mdi->mdio_meta = meta; 1456 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1457 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1458 if (disk->d_state != G_RAID_DISK_S_ACTIVE && 1459 disk->d_state != G_RAID_DISK_S_SPARE) 1460 continue; 1461 if (pd->pd_meta != NULL) { 1462 free(pd->pd_meta, M_MD_JMICRON); 1463 pd->pd_meta = NULL; 1464 } 1465 pd->pd_meta = jmicron_meta_copy(meta); 1466 pd->pd_meta->disk_id = pd->pd_disk_id; 1467 if ((sd = TAILQ_FIRST(&disk->d_subdisks)) != NULL) { 1468 pd->pd_meta->offset = 1469 (sd->sd_offset / 512) / 16; 1470 pd->pd_meta->disk_sectors_high = 1471 (sd->sd_size / 512) >> 16; 1472 pd->pd_meta->disk_sectors_low = 1473 (sd->sd_size / 512) & 0xffff; 1474 if (sd->sd_state < G_RAID_SUBDISK_S_STALE) 1475 pd->pd_meta->flags &= ~JMICRON_F_BADSEC; 1476 else if (sd->sd_state < G_RAID_SUBDISK_S_ACTIVE) 1477 pd->pd_meta->flags |= JMICRON_F_UNSYNC; 1478 } 1479 G_RAID_DEBUG(1, "Writing JMicron metadata to %s", 1480 g_raid_get_diskname(disk)); 1481 g_raid_md_jmicron_print(pd->pd_meta); 1482 jmicron_meta_write(disk->d_consumer, pd->pd_meta); 1483 } 1484 return (0); 1485} 1486 1487static int 1488g_raid_md_fail_disk_jmicron(struct g_raid_md_object *md, 1489 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1490{ 1491 struct g_raid_softc *sc; 1492 struct g_raid_md_jmicron_perdisk *pd; 1493 struct g_raid_subdisk *sd; 1494 1495 sc = md->mdo_softc; 1496 pd = (struct g_raid_md_jmicron_perdisk *)tdisk->d_md_data; 1497 1498 /* We can't fail disk that is not a part of array now. */ 1499 if (pd->pd_disk_pos < 0) 1500 return (-1); 1501 1502 if (tdisk->d_consumer) 1503 jmicron_meta_erase(tdisk->d_consumer); 1504 1505 /* Change states. */ 1506 g_raid_change_disk_state(tdisk, G_RAID_DISK_S_FAILED); 1507 TAILQ_FOREACH(sd, &tdisk->d_subdisks, sd_next) { 1508 g_raid_change_subdisk_state(sd, 1509 G_RAID_SUBDISK_S_FAILED); 1510 g_raid_event_send(sd, G_RAID_SUBDISK_E_FAILED, 1511 G_RAID_EVENT_SUBDISK); 1512 } 1513 1514 /* Write updated metadata to remaining disks. */ 1515 g_raid_md_write_jmicron(md, NULL, NULL, tdisk); 1516 1517 /* Check if anything left except placeholders. */ 1518 if (g_raid_ndisks(sc, -1) == 1519 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1520 g_raid_destroy_node(sc, 0); 1521 else 1522 g_raid_md_jmicron_refill(sc); 1523 return (0); 1524} 1525 1526static int 1527g_raid_md_free_disk_jmicron(struct g_raid_md_object *md, 1528 struct g_raid_disk *disk) 1529{ 1530 struct g_raid_md_jmicron_perdisk *pd; 1531 1532 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1533 if (pd->pd_meta != NULL) { 1534 free(pd->pd_meta, M_MD_JMICRON); 1535 pd->pd_meta = NULL; 1536 } 1537 free(pd, M_MD_JMICRON); 1538 disk->d_md_data = NULL; 1539 return (0); 1540} 1541 1542static int 1543g_raid_md_free_jmicron(struct g_raid_md_object *md) 1544{ 1545 struct g_raid_md_jmicron_object *mdi; 1546 1547 mdi = (struct g_raid_md_jmicron_object *)md; 1548 if (!mdi->mdio_started) { 1549 mdi->mdio_started = 0; 1550 callout_stop(&mdi->mdio_start_co); 1551 G_RAID_DEBUG1(1, md->mdo_softc, 1552 "root_mount_rel %p", mdi->mdio_rootmount); 1553 root_mount_rel(mdi->mdio_rootmount); 1554 mdi->mdio_rootmount = NULL; 1555 } 1556 if (mdi->mdio_meta != NULL) { 1557 free(mdi->mdio_meta, M_MD_JMICRON); 1558 mdi->mdio_meta = NULL; 1559 } 1560 return (0); 1561} 1562 1563G_RAID_MD_DECLARE(jmicron, "JMicron"); 1564