1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2010 Alexander Motin <mav@FreeBSD.org> 5 * Copyright (c) 2000 - 2008 Søren 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 49 static 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 54 struct 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 94 struct 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 }; 100 101 struct 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 }; 112 113 static g_raid_md_create_t g_raid_md_create_jmicron; 114 static g_raid_md_taste_t g_raid_md_taste_jmicron; 115 static g_raid_md_event_t g_raid_md_event_jmicron; 116 static g_raid_md_ctl_t g_raid_md_ctl_jmicron; 117 static g_raid_md_write_t g_raid_md_write_jmicron; 118 static g_raid_md_fail_disk_t g_raid_md_fail_disk_jmicron; 119 static g_raid_md_free_disk_t g_raid_md_free_disk_jmicron; 120 static g_raid_md_free_t g_raid_md_free_jmicron; 121 122 static 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 }; 133 134 static 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 }; 141 142 static void 143 g_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 } 172 173 static struct jmicron_raid_conf * 174 jmicron_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 } 182 183 static int 184 jmicron_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 } 194 195 static int 196 jmicron_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 */ 212 static uint32_t 213 jmicron_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 } 223 224 static void 225 jmicron_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 } 237 238 static void 239 jmicron_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 } 245 246 static int 247 jmicron_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 } 262 263 static struct jmicron_raid_conf * 264 jmicron_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 } 305 306 static int 307 jmicron_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 } 336 337 static int 338 jmicron_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 } 355 356 static struct g_raid_disk * 357 g_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 } 369 370 static int 371 g_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 } 420 421 static int 422 g_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) { 478 nofit: 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 /* 532 * Different disks may have different sizes/offsets, 533 * especially in concat mode. Update. 534 */ 535 if (!resurrection) { 536 sd->sd_offset = 537 (off_t)pd->pd_meta->offset * 16 * 512; //ZZZ 538 sd->sd_size = 539 (((off_t)pd->pd_meta->disk_sectors_high << 16) + 540 pd->pd_meta->disk_sectors_low) * 512; 541 } 542 543 if (resurrection) { 544 /* Stale disk, almost same as new. */ 545 g_raid_change_subdisk_state(sd, 546 G_RAID_SUBDISK_S_NEW); 547 } else if ((meta->flags & JMICRON_F_BADSEC) != 0 && 548 (pd->pd_meta->flags & JMICRON_F_BADSEC) == 0) { 549 /* Cold-inserted or rebuilding disk. */ 550 g_raid_change_subdisk_state(sd, 551 G_RAID_SUBDISK_S_NEW); 552 } else if (pd->pd_meta->flags & JMICRON_F_UNSYNC) { 553 /* Dirty or resyncing disk.. */ 554 g_raid_change_subdisk_state(sd, 555 G_RAID_SUBDISK_S_STALE); 556 } else { 557 /* Up to date disk. */ 558 g_raid_change_subdisk_state(sd, 559 G_RAID_SUBDISK_S_ACTIVE); 560 } 561 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 562 G_RAID_EVENT_SUBDISK); 563 } 564 565 /* Update status of our need for spare. */ 566 if (mdi->mdio_started) { 567 mdi->mdio_incomplete = 568 (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < 569 mdi->mdio_total_disks); 570 } 571 572 return (resurrection); 573 } 574 575 static void 576 g_disk_md_jmicron_retaste(void *arg, int pending) 577 { 578 579 G_RAID_DEBUG(1, "Array is not complete, trying to retaste."); 580 g_retaste(&g_raid_class); 581 free(arg, M_MD_JMICRON); 582 } 583 584 static void 585 g_raid_md_jmicron_refill(struct g_raid_softc *sc) 586 { 587 struct g_raid_md_object *md; 588 struct g_raid_md_jmicron_object *mdi; 589 struct g_raid_disk *disk; 590 struct task *task; 591 int update, na; 592 593 md = sc->sc_md; 594 mdi = (struct g_raid_md_jmicron_object *)md; 595 update = 0; 596 do { 597 /* Make sure we miss anything. */ 598 na = g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE); 599 if (na == mdi->mdio_total_disks) 600 break; 601 602 G_RAID_DEBUG1(1, md->mdo_softc, 603 "Array is not complete (%d of %d), " 604 "trying to refill.", na, mdi->mdio_total_disks); 605 606 /* Try to get use some of STALE disks. */ 607 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 608 if (disk->d_state == G_RAID_DISK_S_STALE) { 609 update += g_raid_md_jmicron_start_disk(disk); 610 if (disk->d_state == G_RAID_DISK_S_ACTIVE) 611 break; 612 } 613 } 614 if (disk != NULL) 615 continue; 616 617 /* Try to get use some of SPARE disks. */ 618 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 619 if (disk->d_state == G_RAID_DISK_S_SPARE) { 620 update += g_raid_md_jmicron_start_disk(disk); 621 if (disk->d_state == G_RAID_DISK_S_ACTIVE) 622 break; 623 } 624 } 625 } while (disk != NULL); 626 627 /* Write new metadata if we changed something. */ 628 if (update) 629 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 630 631 /* Update status of our need for spare. */ 632 mdi->mdio_incomplete = (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < 633 mdi->mdio_total_disks); 634 635 /* Request retaste hoping to find spare. */ 636 if (mdi->mdio_incomplete) { 637 task = malloc(sizeof(struct task), 638 M_MD_JMICRON, M_WAITOK | M_ZERO); 639 TASK_INIT(task, 0, g_disk_md_jmicron_retaste, task); 640 taskqueue_enqueue(taskqueue_swi, task); 641 } 642 } 643 644 static void 645 g_raid_md_jmicron_start(struct g_raid_softc *sc) 646 { 647 struct g_raid_md_object *md; 648 struct g_raid_md_jmicron_object *mdi; 649 struct g_raid_md_jmicron_perdisk *pd; 650 struct jmicron_raid_conf *meta; 651 struct g_raid_volume *vol; 652 struct g_raid_subdisk *sd; 653 struct g_raid_disk *disk; 654 off_t size; 655 int j, disk_pos; 656 char buf[17]; 657 658 md = sc->sc_md; 659 mdi = (struct g_raid_md_jmicron_object *)md; 660 meta = mdi->mdio_meta; 661 662 /* Create volumes and subdisks. */ 663 jmicron_meta_get_name(meta, buf); 664 vol = g_raid_create_volume(sc, buf, -1); 665 size = ((off_t)meta->disk_sectors_high << 16) + meta->disk_sectors_low; 666 size *= 512; //ZZZ 667 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_NONE; 668 if (meta->type == JMICRON_T_RAID0) { 669 vol->v_raid_level = G_RAID_VOLUME_RL_RAID0; 670 vol->v_mediasize = size * mdi->mdio_total_disks; 671 } else if (meta->type == JMICRON_T_RAID1) { 672 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1; 673 vol->v_mediasize = size; 674 } else if (meta->type == JMICRON_T_RAID01) { 675 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1E; 676 vol->v_mediasize = size * mdi->mdio_total_disks / 2; 677 } else if (meta->type == JMICRON_T_CONCAT) { 678 if (mdi->mdio_total_disks == 1) 679 vol->v_raid_level = G_RAID_VOLUME_RL_SINGLE; 680 else 681 vol->v_raid_level = G_RAID_VOLUME_RL_CONCAT; 682 vol->v_mediasize = 0; 683 } else if (meta->type == JMICRON_T_RAID5) { 684 vol->v_raid_level = G_RAID_VOLUME_RL_RAID5; 685 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_R5LA; 686 vol->v_mediasize = size * (mdi->mdio_total_disks - 1); 687 } else { 688 vol->v_raid_level = G_RAID_VOLUME_RL_UNKNOWN; 689 vol->v_mediasize = 0; 690 } 691 vol->v_strip_size = 1024 << meta->stripe_shift; //ZZZ 692 vol->v_disks_count = mdi->mdio_total_disks; 693 vol->v_sectorsize = 512; //ZZZ 694 for (j = 0; j < vol->v_disks_count; j++) { 695 sd = &vol->v_subdisks[j]; 696 sd->sd_offset = (off_t)meta->offset * 16 * 512; //ZZZ 697 sd->sd_size = size; 698 } 699 g_raid_start_volume(vol); 700 701 /* Create disk placeholders to store data for later writing. */ 702 for (disk_pos = 0; disk_pos < mdi->mdio_total_disks; disk_pos++) { 703 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 704 pd->pd_disk_pos = disk_pos; 705 pd->pd_disk_id = meta->disks[disk_pos]; 706 disk = g_raid_create_disk(sc); 707 disk->d_md_data = (void *)pd; 708 disk->d_state = G_RAID_DISK_S_OFFLINE; 709 sd = &vol->v_subdisks[disk_pos]; 710 sd->sd_disk = disk; 711 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 712 } 713 714 /* Make all disks found till the moment take their places. */ 715 do { 716 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 717 if (disk->d_state == G_RAID_DISK_S_NONE) { 718 g_raid_md_jmicron_start_disk(disk); 719 break; 720 } 721 } 722 } while (disk != NULL); 723 724 mdi->mdio_started = 1; 725 G_RAID_DEBUG1(0, sc, "Array started."); 726 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 727 728 /* Pickup any STALE/SPARE disks to refill array if needed. */ 729 g_raid_md_jmicron_refill(sc); 730 731 g_raid_event_send(vol, G_RAID_VOLUME_E_START, G_RAID_EVENT_VOLUME); 732 733 callout_stop(&mdi->mdio_start_co); 734 G_RAID_DEBUG1(1, sc, "root_mount_rel %p", mdi->mdio_rootmount); 735 root_mount_rel(mdi->mdio_rootmount); 736 mdi->mdio_rootmount = NULL; 737 } 738 739 static void 740 g_raid_md_jmicron_new_disk(struct g_raid_disk *disk) 741 { 742 struct g_raid_softc *sc; 743 struct g_raid_md_object *md; 744 struct g_raid_md_jmicron_object *mdi; 745 struct jmicron_raid_conf *pdmeta; 746 struct g_raid_md_jmicron_perdisk *pd; 747 748 sc = disk->d_softc; 749 md = sc->sc_md; 750 mdi = (struct g_raid_md_jmicron_object *)md; 751 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 752 pdmeta = pd->pd_meta; 753 754 if (mdi->mdio_started) { 755 if (g_raid_md_jmicron_start_disk(disk)) 756 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 757 } else { 758 /* 759 * If we haven't started yet - update common metadata 760 * to get subdisks details, avoiding data from spare disks. 761 */ 762 if (mdi->mdio_meta == NULL || 763 jmicron_meta_find_disk(mdi->mdio_meta, 764 mdi->mdio_meta->disk_id) == -3) { 765 if (mdi->mdio_meta != NULL) 766 free(mdi->mdio_meta, M_MD_JMICRON); 767 mdi->mdio_meta = jmicron_meta_copy(pdmeta); 768 mdi->mdio_total_disks = jmicron_meta_total_disks(pdmeta); 769 } 770 mdi->mdio_meta->flags |= pdmeta->flags & JMICRON_F_BADSEC; 771 772 mdi->mdio_disks_present++; 773 G_RAID_DEBUG1(1, sc, "Matching disk (%d of %d+%d up)", 774 mdi->mdio_disks_present, 775 mdi->mdio_total_disks, 776 jmicron_meta_total_spare(mdi->mdio_meta)); 777 778 /* If we collected all needed disks - start array. */ 779 if (mdi->mdio_disks_present == mdi->mdio_total_disks + 780 jmicron_meta_total_spare(mdi->mdio_meta)) 781 g_raid_md_jmicron_start(sc); 782 } 783 } 784 785 static void 786 g_raid_jmicron_go(void *arg) 787 { 788 struct g_raid_softc *sc; 789 struct g_raid_md_object *md; 790 struct g_raid_md_jmicron_object *mdi; 791 792 sc = arg; 793 md = sc->sc_md; 794 mdi = (struct g_raid_md_jmicron_object *)md; 795 if (!mdi->mdio_started) { 796 G_RAID_DEBUG1(0, sc, "Force array start due to timeout."); 797 g_raid_event_send(sc, G_RAID_NODE_E_START, 0); 798 } 799 } 800 801 static int 802 g_raid_md_create_jmicron(struct g_raid_md_object *md, struct g_class *mp, 803 struct g_geom **gp) 804 { 805 struct g_raid_softc *sc; 806 struct g_raid_md_jmicron_object *mdi; 807 char name[16]; 808 809 mdi = (struct g_raid_md_jmicron_object *)md; 810 mdi->mdio_config_id = arc4random(); 811 snprintf(name, sizeof(name), "JMicron-%08x", mdi->mdio_config_id); 812 sc = g_raid_create_node(mp, name, md); 813 if (sc == NULL) 814 return (G_RAID_MD_TASTE_FAIL); 815 md->mdo_softc = sc; 816 *gp = sc->sc_geom; 817 return (G_RAID_MD_TASTE_NEW); 818 } 819 820 static int 821 g_raid_md_taste_jmicron(struct g_raid_md_object *md, struct g_class *mp, 822 struct g_consumer *cp, struct g_geom **gp) 823 { 824 struct g_consumer *rcp; 825 struct g_provider *pp; 826 struct g_raid_md_jmicron_object *mdi, *mdi1; 827 struct g_raid_softc *sc; 828 struct g_raid_disk *disk; 829 struct jmicron_raid_conf *meta; 830 struct g_raid_md_jmicron_perdisk *pd; 831 struct g_geom *geom; 832 int disk_pos, result, spare, len; 833 char name[16]; 834 uint16_t vendor; 835 836 G_RAID_DEBUG(1, "Tasting JMicron on %s", cp->provider->name); 837 mdi = (struct g_raid_md_jmicron_object *)md; 838 pp = cp->provider; 839 840 /* Read metadata from device. */ 841 meta = NULL; 842 g_topology_unlock(); 843 vendor = 0xffff; 844 len = sizeof(vendor); 845 if (pp->geom->rank == 1) 846 g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor); 847 meta = jmicron_meta_read(cp); 848 g_topology_lock(); 849 if (meta == NULL) { 850 if (g_raid_aggressive_spare) { 851 if (vendor == 0x197b) { 852 G_RAID_DEBUG(1, 853 "No JMicron metadata, forcing spare."); 854 spare = 2; 855 goto search; 856 } else { 857 G_RAID_DEBUG(1, 858 "JMicron vendor mismatch 0x%04x != 0x197b", 859 vendor); 860 } 861 } 862 return (G_RAID_MD_TASTE_FAIL); 863 } 864 865 /* Check this disk position in obtained metadata. */ 866 disk_pos = jmicron_meta_find_disk(meta, meta->disk_id); 867 if (disk_pos == -1) { 868 G_RAID_DEBUG(1, "JMicron disk_id %08x not found", 869 meta->disk_id); 870 goto fail1; 871 } 872 873 /* Metadata valid. Print it. */ 874 g_raid_md_jmicron_print(meta); 875 G_RAID_DEBUG(1, "JMicron disk position %d", disk_pos); 876 spare = (disk_pos == -2) ? 1 : 0; 877 878 search: 879 /* Search for matching node. */ 880 sc = NULL; 881 mdi1 = NULL; 882 LIST_FOREACH(geom, &mp->geom, geom) { 883 sc = geom->softc; 884 if (sc == NULL) 885 continue; 886 if (sc->sc_stopping != 0) 887 continue; 888 if (sc->sc_md->mdo_class != md->mdo_class) 889 continue; 890 mdi1 = (struct g_raid_md_jmicron_object *)sc->sc_md; 891 if (spare == 2) { 892 if (mdi1->mdio_incomplete) 893 break; 894 } else { 895 if (mdi1->mdio_config_id == 896 jmicron_meta_config_id(meta)) 897 break; 898 } 899 } 900 901 /* Found matching node. */ 902 if (geom != NULL) { 903 G_RAID_DEBUG(1, "Found matching array %s", sc->sc_name); 904 result = G_RAID_MD_TASTE_EXISTING; 905 906 } else if (spare) { /* Not found needy node -- left for later. */ 907 G_RAID_DEBUG(1, "Spare is not needed at this time"); 908 goto fail1; 909 910 } else { /* Not found matching node -- create one. */ 911 result = G_RAID_MD_TASTE_NEW; 912 mdi->mdio_config_id = jmicron_meta_config_id(meta); 913 snprintf(name, sizeof(name), "JMicron-%08x", 914 mdi->mdio_config_id); 915 sc = g_raid_create_node(mp, name, md); 916 md->mdo_softc = sc; 917 geom = sc->sc_geom; 918 callout_init(&mdi->mdio_start_co, 1); 919 callout_reset(&mdi->mdio_start_co, g_raid_start_timeout * hz, 920 g_raid_jmicron_go, sc); 921 mdi->mdio_rootmount = root_mount_hold("GRAID-JMicron"); 922 G_RAID_DEBUG1(1, sc, "root_mount_hold %p", mdi->mdio_rootmount); 923 } 924 925 /* There is no return after this point, so we close passed consumer. */ 926 g_access(cp, -1, 0, 0); 927 928 rcp = g_new_consumer(geom); 929 rcp->flags |= G_CF_DIRECT_RECEIVE; 930 g_attach(rcp, pp); 931 if (g_access(rcp, 1, 1, 1) != 0) 932 ; //goto fail1; 933 934 g_topology_unlock(); 935 sx_xlock(&sc->sc_lock); 936 937 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 938 pd->pd_meta = meta; 939 if (spare == 2) { 940 pd->pd_disk_pos = -3; 941 pd->pd_disk_id = arc4random() & JMICRON_DISK_MASK; 942 } else { 943 pd->pd_disk_pos = -1; 944 pd->pd_disk_id = meta->disk_id; 945 } 946 pd->pd_disk_size = pp->mediasize; 947 disk = g_raid_create_disk(sc); 948 disk->d_md_data = (void *)pd; 949 disk->d_consumer = rcp; 950 rcp->private = disk; 951 952 g_raid_get_disk_info(disk); 953 954 g_raid_md_jmicron_new_disk(disk); 955 956 sx_xunlock(&sc->sc_lock); 957 g_topology_lock(); 958 *gp = geom; 959 return (result); 960 fail1: 961 free(meta, M_MD_JMICRON); 962 return (G_RAID_MD_TASTE_FAIL); 963 } 964 965 static int 966 g_raid_md_event_jmicron(struct g_raid_md_object *md, 967 struct g_raid_disk *disk, u_int event) 968 { 969 struct g_raid_softc *sc; 970 struct g_raid_subdisk *sd; 971 struct g_raid_md_jmicron_object *mdi; 972 struct g_raid_md_jmicron_perdisk *pd; 973 974 sc = md->mdo_softc; 975 mdi = (struct g_raid_md_jmicron_object *)md; 976 if (disk == NULL) { 977 switch (event) { 978 case G_RAID_NODE_E_START: 979 if (!mdi->mdio_started) 980 g_raid_md_jmicron_start(sc); 981 return (0); 982 } 983 return (-1); 984 } 985 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 986 switch (event) { 987 case G_RAID_DISK_E_DISCONNECTED: 988 /* If disk was assigned, just update statuses. */ 989 if (pd->pd_disk_pos >= 0) { 990 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 991 if (disk->d_consumer) { 992 g_raid_kill_consumer(sc, disk->d_consumer); 993 disk->d_consumer = NULL; 994 } 995 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 996 g_raid_change_subdisk_state(sd, 997 G_RAID_SUBDISK_S_NONE); 998 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED, 999 G_RAID_EVENT_SUBDISK); 1000 } 1001 } else { 1002 /* Otherwise -- delete. */ 1003 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 1004 g_raid_destroy_disk(disk); 1005 } 1006 1007 /* Write updated metadata to all disks. */ 1008 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1009 1010 /* Check if anything left except placeholders. */ 1011 if (g_raid_ndisks(sc, -1) == 1012 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1013 g_raid_destroy_node(sc, 0); 1014 else 1015 g_raid_md_jmicron_refill(sc); 1016 return (0); 1017 } 1018 return (-2); 1019 } 1020 1021 static int 1022 g_raid_md_ctl_jmicron(struct g_raid_md_object *md, 1023 struct gctl_req *req) 1024 { 1025 struct g_raid_softc *sc; 1026 struct g_raid_volume *vol; 1027 struct g_raid_subdisk *sd; 1028 struct g_raid_disk *disk; 1029 struct g_raid_md_jmicron_object *mdi; 1030 struct g_raid_md_jmicron_perdisk *pd; 1031 struct g_consumer *cp; 1032 struct g_provider *pp; 1033 char arg[16]; 1034 const char *verb, *volname, *levelname, *diskname; 1035 int *nargs, *force; 1036 off_t size, sectorsize, strip; 1037 intmax_t *sizearg, *striparg; 1038 int numdisks, i, len, level, qual, update; 1039 int error; 1040 1041 sc = md->mdo_softc; 1042 mdi = (struct g_raid_md_jmicron_object *)md; 1043 verb = gctl_get_param(req, "verb", NULL); 1044 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 1045 error = 0; 1046 if (strcmp(verb, "label") == 0) { 1047 1048 if (*nargs < 4) { 1049 gctl_error(req, "Invalid number of arguments."); 1050 return (-1); 1051 } 1052 volname = gctl_get_asciiparam(req, "arg1"); 1053 if (volname == NULL) { 1054 gctl_error(req, "No volume name."); 1055 return (-2); 1056 } 1057 levelname = gctl_get_asciiparam(req, "arg2"); 1058 if (levelname == NULL) { 1059 gctl_error(req, "No RAID level."); 1060 return (-3); 1061 } 1062 if (strcasecmp(levelname, "RAID5") == 0) 1063 levelname = "RAID5-LA"; 1064 if (g_raid_volume_str2level(levelname, &level, &qual)) { 1065 gctl_error(req, "Unknown RAID level '%s'.", levelname); 1066 return (-4); 1067 } 1068 numdisks = *nargs - 3; 1069 force = gctl_get_paraml(req, "force", sizeof(*force)); 1070 if (!g_raid_md_jmicron_supported(level, qual, numdisks, 1071 force ? *force : 0)) { 1072 gctl_error(req, "Unsupported RAID level " 1073 "(0x%02x/0x%02x), or number of disks (%d).", 1074 level, qual, numdisks); 1075 return (-5); 1076 } 1077 1078 /* Search for disks, connect them and probe. */ 1079 size = 0x7fffffffffffffffllu; 1080 sectorsize = 0; 1081 for (i = 0; i < numdisks; i++) { 1082 snprintf(arg, sizeof(arg), "arg%d", i + 3); 1083 diskname = gctl_get_asciiparam(req, arg); 1084 if (diskname == NULL) { 1085 gctl_error(req, "No disk name (%s).", arg); 1086 error = -6; 1087 break; 1088 } 1089 if (strcmp(diskname, "NONE") == 0) { 1090 cp = NULL; 1091 pp = NULL; 1092 } else { 1093 g_topology_lock(); 1094 cp = g_raid_open_consumer(sc, diskname); 1095 if (cp == NULL) { 1096 gctl_error(req, "Can't open '%s'.", 1097 diskname); 1098 g_topology_unlock(); 1099 error = -7; 1100 break; 1101 } 1102 pp = cp->provider; 1103 } 1104 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 1105 pd->pd_disk_pos = i; 1106 pd->pd_disk_id = arc4random() & JMICRON_DISK_MASK; 1107 disk = g_raid_create_disk(sc); 1108 disk->d_md_data = (void *)pd; 1109 disk->d_consumer = cp; 1110 if (cp == NULL) 1111 continue; 1112 cp->private = disk; 1113 g_topology_unlock(); 1114 1115 g_raid_get_disk_info(disk); 1116 1117 pd->pd_disk_size = pp->mediasize; 1118 if (size > pp->mediasize) 1119 size = pp->mediasize; 1120 if (sectorsize < pp->sectorsize) 1121 sectorsize = pp->sectorsize; 1122 } 1123 if (error != 0) 1124 return (error); 1125 1126 if (sectorsize <= 0) { 1127 gctl_error(req, "Can't get sector size."); 1128 return (-8); 1129 } 1130 1131 /* Reserve space for metadata. */ 1132 size -= sectorsize; 1133 1134 /* Handle size argument. */ 1135 len = sizeof(*sizearg); 1136 sizearg = gctl_get_param(req, "size", &len); 1137 if (sizearg != NULL && len == sizeof(*sizearg) && 1138 *sizearg > 0) { 1139 if (*sizearg > size) { 1140 gctl_error(req, "Size too big %lld > %lld.", 1141 (long long)*sizearg, (long long)size); 1142 return (-9); 1143 } 1144 size = *sizearg; 1145 } 1146 1147 /* Handle strip argument. */ 1148 strip = 131072; 1149 len = sizeof(*striparg); 1150 striparg = gctl_get_param(req, "strip", &len); 1151 if (striparg != NULL && len == sizeof(*striparg) && 1152 *striparg > 0) { 1153 if (*striparg < sectorsize) { 1154 gctl_error(req, "Strip size too small."); 1155 return (-10); 1156 } 1157 if (*striparg % sectorsize != 0) { 1158 gctl_error(req, "Incorrect strip size."); 1159 return (-11); 1160 } 1161 if (strip > 65535 * sectorsize) { 1162 gctl_error(req, "Strip size too big."); 1163 return (-12); 1164 } 1165 strip = *striparg; 1166 } 1167 1168 /* Round size down to strip or sector. */ 1169 if (level == G_RAID_VOLUME_RL_RAID1) 1170 size -= (size % sectorsize); 1171 else if (level == G_RAID_VOLUME_RL_RAID1E && 1172 (numdisks & 1) != 0) 1173 size -= (size % (2 * strip)); 1174 else 1175 size -= (size % strip); 1176 if (size <= 0) { 1177 gctl_error(req, "Size too small."); 1178 return (-13); 1179 } 1180 if (size > 0xffffffffffffllu * sectorsize) { 1181 gctl_error(req, "Size too big."); 1182 return (-14); 1183 } 1184 1185 /* We have all we need, create things: volume, ... */ 1186 mdi->mdio_total_disks = numdisks; 1187 mdi->mdio_started = 1; 1188 vol = g_raid_create_volume(sc, volname, -1); 1189 vol->v_md_data = (void *)(intptr_t)0; 1190 vol->v_raid_level = level; 1191 vol->v_raid_level_qualifier = qual; 1192 vol->v_strip_size = strip; 1193 vol->v_disks_count = numdisks; 1194 if (level == G_RAID_VOLUME_RL_RAID0 || 1195 level == G_RAID_VOLUME_RL_CONCAT || 1196 level == G_RAID_VOLUME_RL_SINGLE) 1197 vol->v_mediasize = size * numdisks; 1198 else if (level == G_RAID_VOLUME_RL_RAID1) 1199 vol->v_mediasize = size; 1200 else if (level == G_RAID_VOLUME_RL_RAID5) 1201 vol->v_mediasize = size * (numdisks - 1); 1202 else { /* RAID1E */ 1203 vol->v_mediasize = ((size * numdisks) / strip / 2) * 1204 strip; 1205 } 1206 vol->v_sectorsize = sectorsize; 1207 g_raid_start_volume(vol); 1208 1209 /* , and subdisks. */ 1210 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1211 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1212 sd = &vol->v_subdisks[pd->pd_disk_pos]; 1213 sd->sd_disk = disk; 1214 sd->sd_offset = 0; 1215 sd->sd_size = size; 1216 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 1217 if (sd->sd_disk->d_consumer != NULL) { 1218 g_raid_change_disk_state(disk, 1219 G_RAID_DISK_S_ACTIVE); 1220 g_raid_change_subdisk_state(sd, 1221 G_RAID_SUBDISK_S_ACTIVE); 1222 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 1223 G_RAID_EVENT_SUBDISK); 1224 } else { 1225 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1226 } 1227 } 1228 1229 /* Write metadata based on created entities. */ 1230 G_RAID_DEBUG1(0, sc, "Array started."); 1231 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1232 1233 /* Pickup any STALE/SPARE disks to refill array if needed. */ 1234 g_raid_md_jmicron_refill(sc); 1235 1236 g_raid_event_send(vol, G_RAID_VOLUME_E_START, 1237 G_RAID_EVENT_VOLUME); 1238 return (0); 1239 } 1240 if (strcmp(verb, "delete") == 0) { 1241 1242 /* Check if some volume is still open. */ 1243 force = gctl_get_paraml(req, "force", sizeof(*force)); 1244 if (force != NULL && *force == 0 && 1245 g_raid_nopens(sc) != 0) { 1246 gctl_error(req, "Some volume is still open."); 1247 return (-4); 1248 } 1249 1250 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1251 if (disk->d_consumer) 1252 jmicron_meta_erase(disk->d_consumer); 1253 } 1254 g_raid_destroy_node(sc, 0); 1255 return (0); 1256 } 1257 if (strcmp(verb, "remove") == 0 || 1258 strcmp(verb, "fail") == 0) { 1259 if (*nargs < 2) { 1260 gctl_error(req, "Invalid number of arguments."); 1261 return (-1); 1262 } 1263 for (i = 1; i < *nargs; i++) { 1264 snprintf(arg, sizeof(arg), "arg%d", i); 1265 diskname = gctl_get_asciiparam(req, arg); 1266 if (diskname == NULL) { 1267 gctl_error(req, "No disk name (%s).", arg); 1268 error = -2; 1269 break; 1270 } 1271 if (strncmp(diskname, "/dev/", 5) == 0) 1272 diskname += 5; 1273 1274 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1275 if (disk->d_consumer != NULL && 1276 disk->d_consumer->provider != NULL && 1277 strcmp(disk->d_consumer->provider->name, 1278 diskname) == 0) 1279 break; 1280 } 1281 if (disk == NULL) { 1282 gctl_error(req, "Disk '%s' not found.", 1283 diskname); 1284 error = -3; 1285 break; 1286 } 1287 1288 if (strcmp(verb, "fail") == 0) { 1289 g_raid_md_fail_disk_jmicron(md, NULL, disk); 1290 continue; 1291 } 1292 1293 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1294 1295 /* Erase metadata on deleting disk. */ 1296 jmicron_meta_erase(disk->d_consumer); 1297 1298 /* If disk was assigned, just update statuses. */ 1299 if (pd->pd_disk_pos >= 0) { 1300 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1301 g_raid_kill_consumer(sc, disk->d_consumer); 1302 disk->d_consumer = NULL; 1303 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 1304 g_raid_change_subdisk_state(sd, 1305 G_RAID_SUBDISK_S_NONE); 1306 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED, 1307 G_RAID_EVENT_SUBDISK); 1308 } 1309 } else { 1310 /* Otherwise -- delete. */ 1311 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 1312 g_raid_destroy_disk(disk); 1313 } 1314 } 1315 1316 /* Write updated metadata to remaining disks. */ 1317 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1318 1319 /* Check if anything left except placeholders. */ 1320 if (g_raid_ndisks(sc, -1) == 1321 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1322 g_raid_destroy_node(sc, 0); 1323 else 1324 g_raid_md_jmicron_refill(sc); 1325 return (error); 1326 } 1327 if (strcmp(verb, "insert") == 0) { 1328 if (*nargs < 2) { 1329 gctl_error(req, "Invalid number of arguments."); 1330 return (-1); 1331 } 1332 update = 0; 1333 for (i = 1; i < *nargs; i++) { 1334 /* Get disk name. */ 1335 snprintf(arg, sizeof(arg), "arg%d", i); 1336 diskname = gctl_get_asciiparam(req, arg); 1337 if (diskname == NULL) { 1338 gctl_error(req, "No disk name (%s).", arg); 1339 error = -3; 1340 break; 1341 } 1342 1343 /* Try to find provider with specified name. */ 1344 g_topology_lock(); 1345 cp = g_raid_open_consumer(sc, diskname); 1346 if (cp == NULL) { 1347 gctl_error(req, "Can't open disk '%s'.", 1348 diskname); 1349 g_topology_unlock(); 1350 error = -4; 1351 break; 1352 } 1353 pp = cp->provider; 1354 1355 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 1356 pd->pd_disk_pos = -3; 1357 pd->pd_disk_id = arc4random() & JMICRON_DISK_MASK; 1358 pd->pd_disk_size = pp->mediasize; 1359 1360 disk = g_raid_create_disk(sc); 1361 disk->d_consumer = cp; 1362 disk->d_md_data = (void *)pd; 1363 cp->private = disk; 1364 g_topology_unlock(); 1365 1366 g_raid_get_disk_info(disk); 1367 1368 /* Welcome the "new" disk. */ 1369 update += g_raid_md_jmicron_start_disk(disk); 1370 if (disk->d_state != G_RAID_DISK_S_ACTIVE && 1371 disk->d_state != G_RAID_DISK_S_SPARE) { 1372 gctl_error(req, "Disk '%s' doesn't fit.", 1373 diskname); 1374 g_raid_destroy_disk(disk); 1375 error = -8; 1376 break; 1377 } 1378 } 1379 1380 /* Write new metadata if we changed something. */ 1381 if (update) 1382 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1383 return (error); 1384 } 1385 gctl_error(req, "Command '%s' is not supported.", verb); 1386 return (-100); 1387 } 1388 1389 static int 1390 g_raid_md_write_jmicron(struct g_raid_md_object *md, struct g_raid_volume *tvol, 1391 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1392 { 1393 struct g_raid_softc *sc; 1394 struct g_raid_volume *vol; 1395 struct g_raid_subdisk *sd; 1396 struct g_raid_disk *disk; 1397 struct g_raid_md_jmicron_object *mdi; 1398 struct g_raid_md_jmicron_perdisk *pd; 1399 struct jmicron_raid_conf *meta; 1400 int i, spares; 1401 1402 sc = md->mdo_softc; 1403 mdi = (struct g_raid_md_jmicron_object *)md; 1404 1405 if (sc->sc_stopping == G_RAID_DESTROY_HARD) 1406 return (0); 1407 1408 /* There is only one volume. */ 1409 vol = TAILQ_FIRST(&sc->sc_volumes); 1410 1411 /* Fill global fields. */ 1412 meta = malloc(sizeof(*meta), M_MD_JMICRON, M_WAITOK | M_ZERO); 1413 strncpy(meta->signature, JMICRON_MAGIC, 2); 1414 meta->version = JMICRON_VERSION; 1415 jmicron_meta_put_name(meta, vol->v_name); 1416 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID0) 1417 meta->type = JMICRON_T_RAID0; 1418 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) 1419 meta->type = JMICRON_T_RAID1; 1420 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) 1421 meta->type = JMICRON_T_RAID01; 1422 else if (vol->v_raid_level == G_RAID_VOLUME_RL_CONCAT || 1423 vol->v_raid_level == G_RAID_VOLUME_RL_SINGLE) 1424 meta->type = JMICRON_T_CONCAT; 1425 else 1426 meta->type = JMICRON_T_RAID5; 1427 meta->stripe_shift = fls(vol->v_strip_size / 2048); 1428 meta->flags = JMICRON_F_READY | JMICRON_F_BOOTABLE; 1429 for (i = 0; i < vol->v_disks_count; i++) { 1430 sd = &vol->v_subdisks[i]; 1431 if (sd->sd_disk == NULL || sd->sd_disk->d_md_data == NULL) 1432 meta->disks[i] = 0xffffffff; 1433 else { 1434 pd = (struct g_raid_md_jmicron_perdisk *) 1435 sd->sd_disk->d_md_data; 1436 meta->disks[i] = pd->pd_disk_id; 1437 } 1438 if (sd->sd_state < G_RAID_SUBDISK_S_STALE) 1439 meta->flags |= JMICRON_F_BADSEC; 1440 if (vol->v_dirty) 1441 meta->flags |= JMICRON_F_UNSYNC; 1442 } 1443 1444 /* Put spares to their slots. */ 1445 spares = 0; 1446 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1447 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1448 if (disk->d_state != G_RAID_DISK_S_SPARE) 1449 continue; 1450 meta->spare[spares] = pd->pd_disk_id; 1451 if (++spares >= 2) 1452 break; 1453 } 1454 1455 /* We are done. Print meta data and store them to disks. */ 1456 if (mdi->mdio_meta != NULL) 1457 free(mdi->mdio_meta, M_MD_JMICRON); 1458 mdi->mdio_meta = meta; 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_ACTIVE && 1462 disk->d_state != G_RAID_DISK_S_SPARE) 1463 continue; 1464 if (pd->pd_meta != NULL) { 1465 free(pd->pd_meta, M_MD_JMICRON); 1466 pd->pd_meta = NULL; 1467 } 1468 pd->pd_meta = jmicron_meta_copy(meta); 1469 pd->pd_meta->disk_id = pd->pd_disk_id; 1470 if ((sd = TAILQ_FIRST(&disk->d_subdisks)) != NULL) { 1471 pd->pd_meta->offset = 1472 (sd->sd_offset / 512) / 16; 1473 pd->pd_meta->disk_sectors_high = 1474 (sd->sd_size / 512) >> 16; 1475 pd->pd_meta->disk_sectors_low = 1476 (sd->sd_size / 512) & 0xffff; 1477 if (sd->sd_state < G_RAID_SUBDISK_S_STALE) 1478 pd->pd_meta->flags &= ~JMICRON_F_BADSEC; 1479 else if (sd->sd_state < G_RAID_SUBDISK_S_ACTIVE) 1480 pd->pd_meta->flags |= JMICRON_F_UNSYNC; 1481 } 1482 G_RAID_DEBUG(1, "Writing JMicron metadata to %s", 1483 g_raid_get_diskname(disk)); 1484 g_raid_md_jmicron_print(pd->pd_meta); 1485 jmicron_meta_write(disk->d_consumer, pd->pd_meta); 1486 } 1487 return (0); 1488 } 1489 1490 static int 1491 g_raid_md_fail_disk_jmicron(struct g_raid_md_object *md, 1492 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1493 { 1494 struct g_raid_softc *sc; 1495 struct g_raid_md_jmicron_perdisk *pd; 1496 struct g_raid_subdisk *sd; 1497 1498 sc = md->mdo_softc; 1499 pd = (struct g_raid_md_jmicron_perdisk *)tdisk->d_md_data; 1500 1501 /* We can't fail disk that is not a part of array now. */ 1502 if (pd->pd_disk_pos < 0) 1503 return (-1); 1504 1505 if (tdisk->d_consumer) 1506 jmicron_meta_erase(tdisk->d_consumer); 1507 1508 /* Change states. */ 1509 g_raid_change_disk_state(tdisk, G_RAID_DISK_S_FAILED); 1510 TAILQ_FOREACH(sd, &tdisk->d_subdisks, sd_next) { 1511 g_raid_change_subdisk_state(sd, 1512 G_RAID_SUBDISK_S_FAILED); 1513 g_raid_event_send(sd, G_RAID_SUBDISK_E_FAILED, 1514 G_RAID_EVENT_SUBDISK); 1515 } 1516 1517 /* Write updated metadata to remaining disks. */ 1518 g_raid_md_write_jmicron(md, NULL, NULL, tdisk); 1519 1520 /* Check if anything left except placeholders. */ 1521 if (g_raid_ndisks(sc, -1) == 1522 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1523 g_raid_destroy_node(sc, 0); 1524 else 1525 g_raid_md_jmicron_refill(sc); 1526 return (0); 1527 } 1528 1529 static int 1530 g_raid_md_free_disk_jmicron(struct g_raid_md_object *md, 1531 struct g_raid_disk *disk) 1532 { 1533 struct g_raid_md_jmicron_perdisk *pd; 1534 1535 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1536 if (pd->pd_meta != NULL) { 1537 free(pd->pd_meta, M_MD_JMICRON); 1538 pd->pd_meta = NULL; 1539 } 1540 free(pd, M_MD_JMICRON); 1541 disk->d_md_data = NULL; 1542 return (0); 1543 } 1544 1545 static int 1546 g_raid_md_free_jmicron(struct g_raid_md_object *md) 1547 { 1548 struct g_raid_md_jmicron_object *mdi; 1549 1550 mdi = (struct g_raid_md_jmicron_object *)md; 1551 if (!mdi->mdio_started) { 1552 mdi->mdio_started = 0; 1553 callout_stop(&mdi->mdio_start_co); 1554 G_RAID_DEBUG1(1, md->mdo_softc, 1555 "root_mount_rel %p", mdi->mdio_rootmount); 1556 root_mount_rel(mdi->mdio_rootmount); 1557 mdi->mdio_rootmount = NULL; 1558 } 1559 if (mdi->mdio_meta != NULL) { 1560 free(mdi->mdio_meta, M_MD_JMICRON); 1561 mdi->mdio_meta = NULL; 1562 } 1563 return (0); 1564 } 1565 1566 G_RAID_MD_DECLARE(jmicron, "JMicron"); 1567