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sys/geom/raid/md_jmicron.c
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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/raid/g_raid.h" 46 #include "g_raid_md_if.h" 47 48 static MALLOC_DEFINE(M_MD_JMICRON, "md_jmicron_data", "GEOM_RAID JMicron metadata"); 49 50 #define JMICRON_MAX_DISKS 8 51 #define JMICRON_MAX_SPARE 2 52 53 struct jmicron_raid_conf { 54 u_int8_t signature[2]; 55 #define JMICRON_MAGIC "JM" 56 57 u_int16_t version; 58 #define JMICRON_VERSION 0x0001 59 60 u_int16_t checksum; 61 u_int8_t filler_1[10]; 62 u_int32_t disk_id; 63 u_int32_t offset; 64 u_int32_t disk_sectors_high; 65 u_int16_t disk_sectors_low; 66 u_int8_t filler_2[2]; 67 u_int8_t name[16]; 68 u_int8_t type; 69 #define JMICRON_T_RAID0 0 70 #define JMICRON_T_RAID1 1 71 #define JMICRON_T_RAID01 2 72 #define JMICRON_T_CONCAT 3 73 #define JMICRON_T_RAID5 5 74 75 u_int8_t stripe_shift; 76 u_int16_t flags; 77 #define JMICRON_F_READY 0x0001 78 #define JMICRON_F_BOOTABLE 0x0002 79 #define JMICRON_F_BADSEC 0x0004 80 #define JMICRON_F_ACTIVE 0x0010 81 #define JMICRON_F_UNSYNC 0x0020 82 #define JMICRON_F_NEWEST 0x0040 83 84 u_int8_t filler_3[4]; 85 u_int32_t spare[JMICRON_MAX_SPARE]; 86 u_int32_t disks[JMICRON_MAX_DISKS]; 87 #define JMICRON_DISK_MASK 0xFFFFFFF0 88 #define JMICRON_SEG_MASK 0x0000000F 89 u_int8_t filler_4[32]; 90 u_int8_t filler_5[384]; 91 }; 92 93 struct g_raid_md_jmicron_perdisk { 94 struct jmicron_raid_conf *pd_meta; 95 int pd_disk_pos; 96 int pd_disk_id; 97 off_t pd_disk_size; 98 }; 99 100 struct g_raid_md_jmicron_object { 101 struct g_raid_md_object mdio_base; 102 uint32_t mdio_config_id; 103 struct jmicron_raid_conf *mdio_meta; 104 struct callout mdio_start_co; /* STARTING state timer. */ 105 int mdio_total_disks; 106 int mdio_disks_present; 107 int mdio_started; 108 int mdio_incomplete; 109 struct root_hold_token *mdio_rootmount; /* Root mount delay token. */ 110 }; 111 112 static g_raid_md_create_t g_raid_md_create_jmicron; 113 static g_raid_md_taste_t g_raid_md_taste_jmicron; 114 static g_raid_md_event_t g_raid_md_event_jmicron; 115 static g_raid_md_ctl_t g_raid_md_ctl_jmicron; 116 static g_raid_md_write_t g_raid_md_write_jmicron; 117 static g_raid_md_fail_disk_t g_raid_md_fail_disk_jmicron; 118 static g_raid_md_free_disk_t g_raid_md_free_disk_jmicron; 119 static g_raid_md_free_t g_raid_md_free_jmicron; 120 121 static kobj_method_t g_raid_md_jmicron_methods[] = { 122 KOBJMETHOD(g_raid_md_create, g_raid_md_create_jmicron), 123 KOBJMETHOD(g_raid_md_taste, g_raid_md_taste_jmicron), 124 KOBJMETHOD(g_raid_md_event, g_raid_md_event_jmicron), 125 KOBJMETHOD(g_raid_md_ctl, g_raid_md_ctl_jmicron), 126 KOBJMETHOD(g_raid_md_write, g_raid_md_write_jmicron), 127 KOBJMETHOD(g_raid_md_fail_disk, g_raid_md_fail_disk_jmicron), 128 KOBJMETHOD(g_raid_md_free_disk, g_raid_md_free_disk_jmicron), 129 KOBJMETHOD(g_raid_md_free, g_raid_md_free_jmicron), 130 { 0, 0 } 131 }; 132 133 static struct g_raid_md_class g_raid_md_jmicron_class = { 134 "JMicron", 135 g_raid_md_jmicron_methods, 136 sizeof(struct g_raid_md_jmicron_object), 137 .mdc_enable = 1, 138 .mdc_priority = 100 139 }; 140 141 static void 142 g_raid_md_jmicron_print(struct jmicron_raid_conf *meta) 143 { 144 int k; 145 146 if (g_raid_debug < 1) 147 return; 148 149 printf("********* ATA JMicron RAID Metadata *********\n"); 150 printf("signature <%c%c>\n", meta->signature[0], meta->signature[1]); 151 printf("version %04x\n", meta->version); 152 printf("checksum 0x%04x\n", meta->checksum); 153 printf("disk_id 0x%08x\n", meta->disk_id); 154 printf("offset 0x%08x\n", meta->offset); 155 printf("disk_sectors_high 0x%08x\n", meta->disk_sectors_high); 156 printf("disk_sectors_low 0x%04x\n", meta->disk_sectors_low); 157 printf("name <%.16s>\n", meta->name); 158 printf("type %d\n", meta->type); 159 printf("stripe_shift %d\n", meta->stripe_shift); 160 printf("flags %04x\n", meta->flags); 161 printf("spare "); 162 for (k = 0; k < JMICRON_MAX_SPARE; k++) 163 printf(" 0x%08x", meta->spare[k]); 164 printf("\n"); 165 printf("disks "); 166 for (k = 0; k < JMICRON_MAX_DISKS; k++) 167 printf(" 0x%08x", meta->disks[k]); 168 printf("\n"); 169 printf("=================================================\n"); 170 } 171 172 static struct jmicron_raid_conf * 173 jmicron_meta_copy(struct jmicron_raid_conf *meta) 174 { 175 struct jmicron_raid_conf *nmeta; 176 177 nmeta = malloc(sizeof(*meta), M_MD_JMICRON, M_WAITOK); 178 memcpy(nmeta, meta, sizeof(*meta)); 179 return (nmeta); 180 } 181 182 static int 183 jmicron_meta_total_disks(struct jmicron_raid_conf *meta) 184 { 185 int pos; 186 187 for (pos = 0; pos < JMICRON_MAX_DISKS; pos++) { 188 if (meta->disks[pos] == 0) 189 break; 190 } 191 return (pos); 192 } 193 194 static int 195 jmicron_meta_total_spare(struct jmicron_raid_conf *meta) 196 { 197 int pos, n; 198 199 n = 0; 200 for (pos = 0; pos < JMICRON_MAX_SPARE; pos++) { 201 if (meta->spare[pos] != 0) 202 n++; 203 } 204 return (n); 205 } 206 207 /* 208 * Generate fake Configuration ID based on disk IDs. 209 * Note: it will change after each disk set change. 210 */ 211 static uint32_t 212 jmicron_meta_config_id(struct jmicron_raid_conf *meta) 213 { 214 int pos; 215 uint32_t config_id; 216 217 config_id = 0; 218 for (pos = 0; pos < JMICRON_MAX_DISKS; pos++) 219 config_id += meta->disks[pos] << pos; 220 return (config_id); 221 } 222 223 static void 224 jmicron_meta_get_name(struct jmicron_raid_conf *meta, char *buf) 225 { 226 int i; 227 228 strncpy(buf, meta->name, 16); 229 buf[16] = 0; 230 for (i = 15; i >= 0; i--) { 231 if (buf[i] > 0x20) 232 break; 233 buf[i] = 0; 234 } 235 } 236 237 static void 238 jmicron_meta_put_name(struct jmicron_raid_conf *meta, char *buf) 239 { 240 241 memset(meta->name, 0x20, 16); 242 memcpy(meta->name, buf, MIN(strlen(buf), 16)); 243 } 244 245 static int 246 jmicron_meta_find_disk(struct jmicron_raid_conf *meta, uint32_t id) 247 { 248 int pos; 249 250 id &= JMICRON_DISK_MASK; 251 for (pos = 0; pos < JMICRON_MAX_DISKS; pos++) { 252 if ((meta->disks[pos] & JMICRON_DISK_MASK) == id) 253 return (pos); 254 } 255 for (pos = 0; pos < JMICRON_MAX_SPARE; pos++) { 256 if ((meta->spare[pos] & JMICRON_DISK_MASK) == id) 257 return (-3); 258 } 259 return (-1); 260 } 261 262 static struct jmicron_raid_conf * 263 jmicron_meta_read(struct g_consumer *cp) 264 { 265 struct g_provider *pp; 266 struct jmicron_raid_conf *meta; 267 char *buf; 268 int error, i; 269 uint16_t checksum, *ptr; 270 271 pp = cp->provider; 272 273 /* Read the anchor sector. */ 274 buf = g_read_data(cp, 275 pp->mediasize - pp->sectorsize, pp->sectorsize, &error); 276 if (buf == NULL) { 277 G_RAID_DEBUG(1, "Cannot read metadata from %s (error=%d).", 278 pp->name, error); 279 return (NULL); 280 } 281 meta = (struct jmicron_raid_conf *)buf; 282 283 /* Check if this is an JMicron RAID struct */ 284 if (strncmp(meta->signature, JMICRON_MAGIC, strlen(JMICRON_MAGIC))) { 285 G_RAID_DEBUG(1, "JMicron signature check failed on %s", pp->name); 286 g_free(buf); 287 return (NULL); 288 } 289 meta = malloc(sizeof(*meta), M_MD_JMICRON, M_WAITOK); 290 memcpy(meta, buf, min(sizeof(*meta), pp->sectorsize)); 291 g_free(buf); 292 293 /* Check metadata checksum. */ 294 for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i < 64; i++) 295 checksum += *ptr++; 296 if (checksum != 0) { 297 G_RAID_DEBUG(1, "JMicron checksum check failed on %s", pp->name); 298 free(meta, M_MD_JMICRON); 299 return (NULL); 300 } 301 302 return (meta); 303 } 304 305 static int 306 jmicron_meta_write(struct g_consumer *cp, struct jmicron_raid_conf *meta) 307 { 308 struct g_provider *pp; 309 char *buf; 310 int error, i; 311 uint16_t checksum, *ptr; 312 313 pp = cp->provider; 314 315 /* Recalculate checksum for case if metadata were changed. */ 316 meta->checksum = 0; 317 for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i < 64; i++) 318 checksum += *ptr++; 319 meta->checksum -= checksum; 320 321 /* Create and fill buffer. */ 322 buf = malloc(pp->sectorsize, M_MD_JMICRON, M_WAITOK | M_ZERO); 323 memcpy(buf, meta, sizeof(*meta)); 324 325 error = g_write_data(cp, 326 pp->mediasize - pp->sectorsize, buf, pp->sectorsize); 327 if (error != 0) { 328 G_RAID_DEBUG(1, "Cannot write metadata to %s (error=%d).", 329 pp->name, error); 330 } 331 332 free(buf, M_MD_JMICRON); 333 return (error); 334 } 335 336 static int 337 jmicron_meta_erase(struct g_consumer *cp) 338 { 339 struct g_provider *pp; 340 char *buf; 341 int error; 342 343 pp = cp->provider; 344 buf = malloc(pp->sectorsize, M_MD_JMICRON, M_WAITOK | M_ZERO); 345 error = g_write_data(cp, 346 pp->mediasize - pp->sectorsize, buf, pp->sectorsize); 347 if (error != 0) { 348 G_RAID_DEBUG(1, "Cannot erase metadata on %s (error=%d).", 349 pp->name, error); 350 } 351 free(buf, M_MD_JMICRON); 352 return (error); 353 } 354 355 static struct g_raid_disk * 356 g_raid_md_jmicron_get_disk(struct g_raid_softc *sc, int id) 357 { 358 struct g_raid_disk *disk; 359 struct g_raid_md_jmicron_perdisk *pd; 360 361 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 362 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 363 if (pd->pd_disk_pos == id) 364 break; 365 } 366 return (disk); 367 } 368 369 static int 370 g_raid_md_jmicron_supported(int level, int qual, int disks, int force) 371 { 372 373 if (disks > 8) 374 return (0); 375 switch (level) { 376 case G_RAID_VOLUME_RL_RAID0: 377 if (disks < 1) 378 return (0); 379 if (!force && (disks < 2 || disks > 6)) 380 return (0); 381 break; 382 case G_RAID_VOLUME_RL_RAID1: 383 if (disks < 1) 384 return (0); 385 if (!force && (disks != 2)) 386 return (0); 387 break; 388 case G_RAID_VOLUME_RL_RAID1E: 389 if (disks < 2) 390 return (0); 391 if (!force && (disks != 4)) 392 return (0); 393 break; 394 case G_RAID_VOLUME_RL_SINGLE: 395 if (disks != 1) 396 return (0); 397 if (!force) 398 return (0); 399 break; 400 case G_RAID_VOLUME_RL_CONCAT: 401 if (disks < 2) 402 return (0); 403 break; 404 case G_RAID_VOLUME_RL_RAID5: 405 if (disks < 3) 406 return (0); 407 if (qual != G_RAID_VOLUME_RLQ_R5LA) 408 return (0); 409 if (!force) 410 return (0); 411 break; 412 default: 413 return (0); 414 } 415 if (level != G_RAID_VOLUME_RL_RAID5 && qual != G_RAID_VOLUME_RLQ_NONE) 416 return (0); 417 return (1); 418 } 419 420 static int 421 g_raid_md_jmicron_start_disk(struct g_raid_disk *disk) 422 { 423 struct g_raid_softc *sc; 424 struct g_raid_subdisk *sd, *tmpsd; 425 struct g_raid_disk *olddisk, *tmpdisk; 426 struct g_raid_md_object *md; 427 struct g_raid_md_jmicron_object *mdi; 428 struct g_raid_md_jmicron_perdisk *pd, *oldpd; 429 struct jmicron_raid_conf *meta; 430 int disk_pos, resurrection = 0; 431 432 sc = disk->d_softc; 433 md = sc->sc_md; 434 mdi = (struct g_raid_md_jmicron_object *)md; 435 meta = mdi->mdio_meta; 436 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 437 olddisk = NULL; 438 439 /* Find disk position in metadata by its serial. */ 440 if (pd->pd_meta != NULL) 441 disk_pos = jmicron_meta_find_disk(meta, pd->pd_disk_id); 442 else 443 disk_pos = -1; 444 if (disk_pos < 0) { 445 G_RAID_DEBUG1(1, sc, "Unknown, probably new or stale disk"); 446 /* If we are in the start process, that's all for now. */ 447 if (!mdi->mdio_started) 448 goto nofit; 449 /* 450 * If we have already started - try to get use of the disk. 451 * Try to replace OFFLINE disks first, then FAILED. 452 */ 453 TAILQ_FOREACH(tmpdisk, &sc->sc_disks, d_next) { 454 if (tmpdisk->d_state != G_RAID_DISK_S_OFFLINE && 455 tmpdisk->d_state != G_RAID_DISK_S_FAILED) 456 continue; 457 /* Make sure this disk is big enough. */ 458 TAILQ_FOREACH(sd, &tmpdisk->d_subdisks, sd_next) { 459 if (sd->sd_offset + sd->sd_size + 512 > 460 pd->pd_disk_size) { 461 G_RAID_DEBUG1(1, sc, 462 "Disk too small (%ju < %ju)", 463 pd->pd_disk_size, 464 sd->sd_offset + sd->sd_size + 512); 465 break; 466 } 467 } 468 if (sd != NULL) 469 continue; 470 if (tmpdisk->d_state == G_RAID_DISK_S_OFFLINE) { 471 olddisk = tmpdisk; 472 break; 473 } else if (olddisk == NULL) 474 olddisk = tmpdisk; 475 } 476 if (olddisk == NULL) { 477 nofit: 478 if (disk_pos == -3 || pd->pd_disk_pos == -3) { 479 g_raid_change_disk_state(disk, 480 G_RAID_DISK_S_SPARE); 481 return (1); 482 } else { 483 g_raid_change_disk_state(disk, 484 G_RAID_DISK_S_STALE); 485 return (0); 486 } 487 } 488 oldpd = (struct g_raid_md_jmicron_perdisk *)olddisk->d_md_data; 489 disk_pos = oldpd->pd_disk_pos; 490 resurrection = 1; 491 } 492 493 if (olddisk == NULL) { 494 /* Find placeholder by position. */ 495 olddisk = g_raid_md_jmicron_get_disk(sc, disk_pos); 496 if (olddisk == NULL) 497 panic("No disk at position %d!", disk_pos); 498 if (olddisk->d_state != G_RAID_DISK_S_OFFLINE) { 499 G_RAID_DEBUG1(1, sc, "More than one disk for pos %d", 500 disk_pos); 501 g_raid_change_disk_state(disk, G_RAID_DISK_S_STALE); 502 return (0); 503 } 504 oldpd = (struct g_raid_md_jmicron_perdisk *)olddisk->d_md_data; 505 } 506 507 /* Replace failed disk or placeholder with new disk. */ 508 TAILQ_FOREACH_SAFE(sd, &olddisk->d_subdisks, sd_next, tmpsd) { 509 TAILQ_REMOVE(&olddisk->d_subdisks, sd, sd_next); 510 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 511 sd->sd_disk = disk; 512 } 513 oldpd->pd_disk_pos = -2; 514 pd->pd_disk_pos = disk_pos; 515 /* Update global metadata just in case. */ 516 meta->disks[disk_pos] = pd->pd_disk_id; 517 518 /* If it was placeholder -- destroy it. */ 519 if (olddisk->d_state == G_RAID_DISK_S_OFFLINE) { 520 g_raid_destroy_disk(olddisk); 521 } else { 522 /* Otherwise, make it STALE_FAILED. */ 523 g_raid_change_disk_state(olddisk, G_RAID_DISK_S_STALE_FAILED); 524 } 525 526 /* Welcome the new disk. */ 527 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE); 528 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 529 530 /* 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 } 573 574 static void 575 g_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 } 582 583 static void 584 g_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 } 642 643 static void 644 g_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 } 737 738 static void 739 g_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 } 783 784 static void 785 g_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 } 799 800 static int 801 g_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 } 818 819 static int 820 g_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; 876 877 search: 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); 959 fail1: 960 free(meta, M_MD_JMICRON); 961 return (G_RAID_MD_TASTE_FAIL); 962 } 963 964 static int 965 g_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 1020 static int 1021 g_raid_md_ctl_jmicron(struct g_raid_md_object *md, 1022 struct gctl_req *req) 1023 { 1024 struct g_raid_softc *sc; 1025 struct g_raid_volume *vol; 1026 struct g_raid_subdisk *sd; 1027 struct g_raid_disk *disk; 1028 struct g_raid_md_jmicron_object *mdi; 1029 struct g_raid_md_jmicron_perdisk *pd; 1030 struct g_consumer *cp; 1031 struct g_provider *pp; 1032 char arg[16]; 1033 const char *verb, *volname, *levelname, *diskname; 1034 int *nargs, *force; 1035 off_t size, sectorsize, strip; 1036 intmax_t *sizearg, *striparg; 1037 int numdisks, i, len, level, qual, update; 1038 int error; 1039 1040 sc = md->mdo_softc; 1041 mdi = (struct g_raid_md_jmicron_object *)md; 1042 verb = gctl_get_param(req, "verb", NULL); 1043 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 1044 error = 0; 1045 if (strcmp(verb, "label") == 0) { 1046 1047 if (*nargs < 4) { 1048 gctl_error(req, "Invalid number of arguments."); 1049 return (-1); 1050 } 1051 volname = gctl_get_asciiparam(req, "arg1"); 1052 if (volname == NULL) { 1053 gctl_error(req, "No volume name."); 1054 return (-2); 1055 } 1056 levelname = gctl_get_asciiparam(req, "arg2"); 1057 if (levelname == NULL) { 1058 gctl_error(req, "No RAID level."); 1059 return (-3); 1060 } 1061 if (strcasecmp(levelname, "RAID5") == 0) 1062 levelname = "RAID5-LA"; 1063 if (g_raid_volume_str2level(levelname, &level, &qual)) { 1064 gctl_error(req, "Unknown RAID level '%s'.", levelname); 1065 return (-4); 1066 } 1067 numdisks = *nargs - 3; 1068 force = gctl_get_paraml(req, "force", sizeof(*force)); 1069 if (!g_raid_md_jmicron_supported(level, qual, numdisks, 1070 force ? *force : 0)) { 1071 gctl_error(req, "Unsupported RAID level " 1072 "(0x%02x/0x%02x), or number of disks (%d).", 1073 level, qual, numdisks); 1074 return (-5); 1075 } 1076 1077 /* Search for disks, connect them and probe. */ 1078 size = 0x7fffffffffffffffllu; 1079 sectorsize = 0; 1080 for (i = 0; i < numdisks; i++) { 1081 snprintf(arg, sizeof(arg), "arg%d", i + 3); 1082 diskname = gctl_get_asciiparam(req, arg); 1083 if (diskname == NULL) { 1084 gctl_error(req, "No disk name (%s).", arg); 1085 error = -6; 1086 break; 1087 } 1088 if (strcmp(diskname, "NONE") == 0) { 1089 cp = NULL; 1090 pp = NULL; 1091 } else { 1092 g_topology_lock(); 1093 cp = g_raid_open_consumer(sc, diskname); 1094 if (cp == NULL) { 1095 gctl_error(req, "Can't open '%s'.", 1096 diskname); 1097 g_topology_unlock(); 1098 error = -7; 1099 break; 1100 } 1101 pp = cp->provider; 1102 } 1103 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 1104 pd->pd_disk_pos = i; 1105 pd->pd_disk_id = arc4random() & JMICRON_DISK_MASK; 1106 disk = g_raid_create_disk(sc); 1107 disk->d_md_data = (void *)pd; 1108 disk->d_consumer = cp; 1109 if (cp == NULL) 1110 continue; 1111 cp->private = disk; 1112 g_topology_unlock(); 1113 1114 g_raid_get_disk_info(disk); 1115 1116 pd->pd_disk_size = pp->mediasize; 1117 if (size > pp->mediasize) 1118 size = pp->mediasize; 1119 if (sectorsize < pp->sectorsize) 1120 sectorsize = pp->sectorsize; 1121 } 1122 if (error != 0) 1123 return (error); 1124 1125 if (sectorsize <= 0) { 1126 gctl_error(req, "Can't get sector size."); 1127 return (-8); 1128 } 1129 1130 /* Reserve space for metadata. */ 1131 size -= sectorsize; 1132 1133 /* Handle size argument. */ 1134 len = sizeof(*sizearg); 1135 sizearg = gctl_get_param(req, "size", &len); 1136 if (sizearg != NULL && len == sizeof(*sizearg) && 1137 *sizearg > 0) { 1138 if (*sizearg > size) { 1139 gctl_error(req, "Size too big %lld > %lld.", 1140 (long long)*sizearg, (long long)size); 1141 return (-9); 1142 } 1143 size = *sizearg; 1144 } 1145 1146 /* Handle strip argument. */ 1147 strip = 131072; 1148 len = sizeof(*striparg); 1149 striparg = gctl_get_param(req, "strip", &len); 1150 if (striparg != NULL && len == sizeof(*striparg) && 1151 *striparg > 0) { 1152 if (*striparg < sectorsize) { 1153 gctl_error(req, "Strip size too small."); 1154 return (-10); 1155 } 1156 if (*striparg % sectorsize != 0) { 1157 gctl_error(req, "Incorrect strip size."); 1158 return (-11); 1159 } 1160 if (strip > 65535 * sectorsize) { 1161 gctl_error(req, "Strip size too big."); 1162 return (-12); 1163 } 1164 strip = *striparg; 1165 } 1166 1167 /* Round size down to strip or sector. */ 1168 if (level == G_RAID_VOLUME_RL_RAID1) 1169 size -= (size % sectorsize); 1170 else if (level == G_RAID_VOLUME_RL_RAID1E && 1171 (numdisks & 1) != 0) 1172 size -= (size % (2 * strip)); 1173 else 1174 size -= (size % strip); 1175 if (size <= 0) { 1176 gctl_error(req, "Size too small."); 1177 return (-13); 1178 } 1179 if (size > 0xffffffffffffllu * sectorsize) { 1180 gctl_error(req, "Size too big."); 1181 return (-14); 1182 } 1183 1184 /* We have all we need, create things: volume, ... */ 1185 mdi->mdio_total_disks = numdisks; 1186 mdi->mdio_started = 1; 1187 vol = g_raid_create_volume(sc, volname, -1); 1188 vol->v_md_data = (void *)(intptr_t)0; 1189 vol->v_raid_level = level; 1190 vol->v_raid_level_qualifier = qual; 1191 vol->v_strip_size = strip; 1192 vol->v_disks_count = numdisks; 1193 if (level == G_RAID_VOLUME_RL_RAID0 || 1194 level == G_RAID_VOLUME_RL_CONCAT || 1195 level == G_RAID_VOLUME_RL_SINGLE) 1196 vol->v_mediasize = size * numdisks; 1197 else if (level == G_RAID_VOLUME_RL_RAID1) 1198 vol->v_mediasize = size; 1199 else if (level == G_RAID_VOLUME_RL_RAID5) 1200 vol->v_mediasize = size * (numdisks - 1); 1201 else { /* RAID1E */ 1202 vol->v_mediasize = ((size * numdisks) / strip / 2) * 1203 strip; 1204 } 1205 vol->v_sectorsize = sectorsize; 1206 g_raid_start_volume(vol); 1207 1208 /* , and subdisks. */ 1209 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1210 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1211 sd = &vol->v_subdisks[pd->pd_disk_pos]; 1212 sd->sd_disk = disk; 1213 sd->sd_offset = 0; 1214 sd->sd_size = size; 1215 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 1216 if (sd->sd_disk->d_consumer != NULL) { 1217 g_raid_change_disk_state(disk, 1218 G_RAID_DISK_S_ACTIVE); 1219 g_raid_change_subdisk_state(sd, 1220 G_RAID_SUBDISK_S_ACTIVE); 1221 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 1222 G_RAID_EVENT_SUBDISK); 1223 } else { 1224 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1225 } 1226 } 1227 1228 /* Write metadata based on created entities. */ 1229 G_RAID_DEBUG1(0, sc, "Array started."); 1230 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1231 1232 /* Pickup any STALE/SPARE disks to refill array if needed. */ 1233 g_raid_md_jmicron_refill(sc); 1234 1235 g_raid_event_send(vol, G_RAID_VOLUME_E_START, 1236 G_RAID_EVENT_VOLUME); 1237 return (0); 1238 } 1239 if (strcmp(verb, "delete") == 0) { 1240 1241 /* Check if some volume is still open. */ 1242 force = gctl_get_paraml(req, "force", sizeof(*force)); 1243 if (force != NULL && *force == 0 && 1244 g_raid_nopens(sc) != 0) { 1245 gctl_error(req, "Some volume is still open."); 1246 return (-4); 1247 } 1248 1249 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1250 if (disk->d_consumer) 1251 jmicron_meta_erase(disk->d_consumer); 1252 } 1253 g_raid_destroy_node(sc, 0); 1254 return (0); 1255 } 1256 if (strcmp(verb, "remove") == 0 || 1257 strcmp(verb, "fail") == 0) { 1258 if (*nargs < 2) { 1259 gctl_error(req, "Invalid number of arguments."); 1260 return (-1); 1261 } 1262 for (i = 1; i < *nargs; i++) { 1263 snprintf(arg, sizeof(arg), "arg%d", i); 1264 diskname = gctl_get_asciiparam(req, arg); 1265 if (diskname == NULL) { 1266 gctl_error(req, "No disk name (%s).", arg); 1267 error = -2; 1268 break; 1269 } 1270 if (strncmp(diskname, "/dev/", 5) == 0) 1271 diskname += 5; 1272 1273 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1274 if (disk->d_consumer != NULL && 1275 disk->d_consumer->provider != NULL && 1276 strcmp(disk->d_consumer->provider->name, 1277 diskname) == 0) 1278 break; 1279 } 1280 if (disk == NULL) { 1281 gctl_error(req, "Disk '%s' not found.", 1282 diskname); 1283 error = -3; 1284 break; 1285 } 1286 1287 if (strcmp(verb, "fail") == 0) { 1288 g_raid_md_fail_disk_jmicron(md, NULL, disk); 1289 continue; 1290 } 1291 1292 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1293 1294 /* Erase metadata on deleting disk. */ 1295 jmicron_meta_erase(disk->d_consumer); 1296 1297 /* If disk was assigned, just update statuses. */ 1298 if (pd->pd_disk_pos >= 0) { 1299 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1300 g_raid_kill_consumer(sc, disk->d_consumer); 1301 disk->d_consumer = NULL; 1302 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 1303 g_raid_change_subdisk_state(sd, 1304 G_RAID_SUBDISK_S_NONE); 1305 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED, 1306 G_RAID_EVENT_SUBDISK); 1307 } 1308 } else { 1309 /* Otherwise -- delete. */ 1310 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 1311 g_raid_destroy_disk(disk); 1312 } 1313 } 1314 1315 /* Write updated metadata to remaining disks. */ 1316 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1317 1318 /* Check if anything left except placeholders. */ 1319 if (g_raid_ndisks(sc, -1) == 1320 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1321 g_raid_destroy_node(sc, 0); 1322 else 1323 g_raid_md_jmicron_refill(sc); 1324 return (error); 1325 } 1326 if (strcmp(verb, "insert") == 0) { 1327 if (*nargs < 2) { 1328 gctl_error(req, "Invalid number of arguments."); 1329 return (-1); 1330 } 1331 update = 0; 1332 for (i = 1; i < *nargs; i++) { 1333 /* Get disk name. */ 1334 snprintf(arg, sizeof(arg), "arg%d", i); 1335 diskname = gctl_get_asciiparam(req, arg); 1336 if (diskname == NULL) { 1337 gctl_error(req, "No disk name (%s).", arg); 1338 error = -3; 1339 break; 1340 } 1341 1342 /* Try to find provider with specified name. */ 1343 g_topology_lock(); 1344 cp = g_raid_open_consumer(sc, diskname); 1345 if (cp == NULL) { 1346 gctl_error(req, "Can't open disk '%s'.", 1347 diskname); 1348 g_topology_unlock(); 1349 error = -4; 1350 break; 1351 } 1352 pp = cp->provider; 1353 1354 pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); 1355 pd->pd_disk_pos = -3; 1356 pd->pd_disk_id = arc4random() & JMICRON_DISK_MASK; 1357 pd->pd_disk_size = pp->mediasize; 1358 1359 disk = g_raid_create_disk(sc); 1360 disk->d_consumer = cp; 1361 disk->d_md_data = (void *)pd; 1362 cp->private = disk; 1363 g_topology_unlock(); 1364 1365 g_raid_get_disk_info(disk); 1366 1367 /* Welcome the "new" disk. */ 1368 update += g_raid_md_jmicron_start_disk(disk); 1369 if (disk->d_state != G_RAID_DISK_S_ACTIVE && 1370 disk->d_state != G_RAID_DISK_S_SPARE) { 1371 gctl_error(req, "Disk '%s' doesn't fit.", 1372 diskname); 1373 g_raid_destroy_disk(disk); 1374 error = -8; 1375 break; 1376 } 1377 } 1378 1379 /* Write new metadata if we changed something. */ 1380 if (update) 1381 g_raid_md_write_jmicron(md, NULL, NULL, NULL); 1382 return (error); 1383 } 1384 gctl_error(req, "Command '%s' is not supported.", verb); 1385 return (-100); 1386 } 1387 1388 static int 1389 g_raid_md_write_jmicron(struct g_raid_md_object *md, struct g_raid_volume *tvol, 1390 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1391 { 1392 struct g_raid_softc *sc; 1393 struct g_raid_volume *vol; 1394 struct g_raid_subdisk *sd; 1395 struct g_raid_disk *disk; 1396 struct g_raid_md_jmicron_object *mdi; 1397 struct g_raid_md_jmicron_perdisk *pd; 1398 struct jmicron_raid_conf *meta; 1399 int i, spares; 1400 1401 sc = md->mdo_softc; 1402 mdi = (struct g_raid_md_jmicron_object *)md; 1403 1404 if (sc->sc_stopping == G_RAID_DESTROY_HARD) 1405 return (0); 1406 1407 /* There is only one volume. */ 1408 vol = TAILQ_FIRST(&sc->sc_volumes); 1409 1410 /* Fill global fields. */ 1411 meta = malloc(sizeof(*meta), M_MD_JMICRON, M_WAITOK | M_ZERO); 1412 strncpy(meta->signature, JMICRON_MAGIC, 2); 1413 meta->version = JMICRON_VERSION; 1414 jmicron_meta_put_name(meta, vol->v_name); 1415 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID0) 1416 meta->type = JMICRON_T_RAID0; 1417 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) 1418 meta->type = JMICRON_T_RAID1; 1419 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) 1420 meta->type = JMICRON_T_RAID01; 1421 else if (vol->v_raid_level == G_RAID_VOLUME_RL_CONCAT || 1422 vol->v_raid_level == G_RAID_VOLUME_RL_SINGLE) 1423 meta->type = JMICRON_T_CONCAT; 1424 else 1425 meta->type = JMICRON_T_RAID5; 1426 meta->stripe_shift = fls(vol->v_strip_size / 2048); 1427 meta->flags = JMICRON_F_READY | JMICRON_F_BOOTABLE; 1428 for (i = 0; i < vol->v_disks_count; i++) { 1429 sd = &vol->v_subdisks[i]; 1430 if (sd->sd_disk == NULL || sd->sd_disk->d_md_data == NULL) 1431 meta->disks[i] = 0xffffffff; 1432 else { 1433 pd = (struct g_raid_md_jmicron_perdisk *) 1434 sd->sd_disk->d_md_data; 1435 meta->disks[i] = pd->pd_disk_id; 1436 } 1437 if (sd->sd_state < G_RAID_SUBDISK_S_STALE) 1438 meta->flags |= JMICRON_F_BADSEC; 1439 if (vol->v_dirty) 1440 meta->flags |= JMICRON_F_UNSYNC; 1441 } 1442 1443 /* Put spares to their slots. */ 1444 spares = 0; 1445 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1446 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1447 if (disk->d_state != G_RAID_DISK_S_SPARE) 1448 continue; 1449 meta->spare[spares] = pd->pd_disk_id; 1450 if (++spares >= 2) 1451 break; 1452 } 1453 1454 /* We are done. Print meta data and store them to disks. */ 1455 if (mdi->mdio_meta != NULL) 1456 free(mdi->mdio_meta, M_MD_JMICRON); 1457 mdi->mdio_meta = meta; 1458 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1459 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1460 if (disk->d_state != G_RAID_DISK_S_ACTIVE && 1461 disk->d_state != G_RAID_DISK_S_SPARE) 1462 continue; 1463 if (pd->pd_meta != NULL) { 1464 free(pd->pd_meta, M_MD_JMICRON); 1465 pd->pd_meta = NULL; 1466 } 1467 pd->pd_meta = jmicron_meta_copy(meta); 1468 pd->pd_meta->disk_id = pd->pd_disk_id; 1469 if ((sd = TAILQ_FIRST(&disk->d_subdisks)) != NULL) { 1470 pd->pd_meta->offset = 1471 (sd->sd_offset / 512) / 16; 1472 pd->pd_meta->disk_sectors_high = 1473 (sd->sd_size / 512) >> 16; 1474 pd->pd_meta->disk_sectors_low = 1475 (sd->sd_size / 512) & 0xffff; 1476 if (sd->sd_state < G_RAID_SUBDISK_S_STALE) 1477 pd->pd_meta->flags &= ~JMICRON_F_BADSEC; 1478 else if (sd->sd_state < G_RAID_SUBDISK_S_ACTIVE) 1479 pd->pd_meta->flags |= JMICRON_F_UNSYNC; 1480 } 1481 G_RAID_DEBUG(1, "Writing JMicron metadata to %s", 1482 g_raid_get_diskname(disk)); 1483 g_raid_md_jmicron_print(pd->pd_meta); 1484 jmicron_meta_write(disk->d_consumer, pd->pd_meta); 1485 } 1486 return (0); 1487 } 1488 1489 static int 1490 g_raid_md_fail_disk_jmicron(struct g_raid_md_object *md, 1491 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1492 { 1493 struct g_raid_softc *sc; 1494 struct g_raid_md_jmicron_perdisk *pd; 1495 struct g_raid_subdisk *sd; 1496 1497 sc = md->mdo_softc; 1498 pd = (struct g_raid_md_jmicron_perdisk *)tdisk->d_md_data; 1499 1500 /* We can't fail disk that is not a part of array now. */ 1501 if (pd->pd_disk_pos < 0) 1502 return (-1); 1503 1504 if (tdisk->d_consumer) 1505 jmicron_meta_erase(tdisk->d_consumer); 1506 1507 /* Change states. */ 1508 g_raid_change_disk_state(tdisk, G_RAID_DISK_S_FAILED); 1509 TAILQ_FOREACH(sd, &tdisk->d_subdisks, sd_next) { 1510 g_raid_change_subdisk_state(sd, 1511 G_RAID_SUBDISK_S_FAILED); 1512 g_raid_event_send(sd, G_RAID_SUBDISK_E_FAILED, 1513 G_RAID_EVENT_SUBDISK); 1514 } 1515 1516 /* Write updated metadata to remaining disks. */ 1517 g_raid_md_write_jmicron(md, NULL, NULL, tdisk); 1518 1519 /* Check if anything left except placeholders. */ 1520 if (g_raid_ndisks(sc, -1) == 1521 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1522 g_raid_destroy_node(sc, 0); 1523 else 1524 g_raid_md_jmicron_refill(sc); 1525 return (0); 1526 } 1527 1528 static int 1529 g_raid_md_free_disk_jmicron(struct g_raid_md_object *md, 1530 struct g_raid_disk *disk) 1531 { 1532 struct g_raid_md_jmicron_perdisk *pd; 1533 1534 pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; 1535 if (pd->pd_meta != NULL) { 1536 free(pd->pd_meta, M_MD_JMICRON); 1537 pd->pd_meta = NULL; 1538 } 1539 free(pd, M_MD_JMICRON); 1540 disk->d_md_data = NULL; 1541 return (0); 1542 } 1543 1544 static int 1545 g_raid_md_free_jmicron(struct g_raid_md_object *md) 1546 { 1547 struct g_raid_md_jmicron_object *mdi; 1548 1549 mdi = (struct g_raid_md_jmicron_object *)md; 1550 if (!mdi->mdio_started) { 1551 mdi->mdio_started = 0; 1552 callout_stop(&mdi->mdio_start_co); 1553 G_RAID_DEBUG1(1, md->mdo_softc, 1554 "root_mount_rel %p", mdi->mdio_rootmount); 1555 root_mount_rel(mdi->mdio_rootmount); 1556 mdi->mdio_rootmount = NULL; 1557 } 1558 if (mdi->mdio_meta != NULL) { 1559 free(mdi->mdio_meta, M_MD_JMICRON); 1560 mdi->mdio_meta = NULL; 1561 } 1562 return (0); 1563 } 1564 1565 G_RAID_MD_DECLARE(jmicron, "JMicron");
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