md_nvidia.c revision 240552
1/*- 2 * Copyright (c) 2011 Alexander Motin <mav@FreeBSD.org> 3 * Copyright (c) 2000 - 2008 S��ren Schmidt <sos@FreeBSD.org> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28#include <sys/cdefs.h> 29__FBSDID("$FreeBSD: stable/9/sys/geom/raid/md_nvidia.c 240552 2012-09-16 08:42:40Z mav $"); 30 31#include <sys/param.h> 32#include <sys/bio.h> 33#include <sys/endian.h> 34#include <sys/kernel.h> 35#include <sys/kobj.h> 36#include <sys/limits.h> 37#include <sys/lock.h> 38#include <sys/malloc.h> 39#include <sys/mutex.h> 40#include <sys/systm.h> 41#include <sys/taskqueue.h> 42#include <geom/geom.h> 43#include "geom/raid/g_raid.h" 44#include "g_raid_md_if.h" 45 46static MALLOC_DEFINE(M_MD_NVIDIA, "md_nvidia_data", "GEOM_RAID NVIDIA metadata"); 47 48struct nvidia_raid_conf { 49 uint8_t nvidia_id[8]; 50#define NVIDIA_MAGIC "NVIDIA " 51 52 uint32_t config_size; 53 uint32_t checksum; 54 uint16_t version; 55 uint8_t disk_number; 56 uint8_t dummy_0; 57 uint32_t total_sectors; 58 uint32_t sector_size; 59 uint8_t name[16]; 60 uint8_t revision[4]; 61 uint32_t disk_status; 62 63 uint32_t magic_0; 64#define NVIDIA_MAGIC0 0x00640044 65 66 uint64_t volume_id[2]; 67 uint8_t state; 68#define NVIDIA_S_IDLE 0 69#define NVIDIA_S_INIT 2 70#define NVIDIA_S_REBUILD 3 71#define NVIDIA_S_UPGRADE 4 72#define NVIDIA_S_SYNC 5 73 uint8_t array_width; 74 uint8_t total_disks; 75 uint8_t orig_array_width; 76 uint16_t type; 77#define NVIDIA_T_RAID0 0x0080 78#define NVIDIA_T_RAID1 0x0081 79#define NVIDIA_T_RAID3 0x0083 80#define NVIDIA_T_RAID5 0x0085 /* RLQ = 00/02? */ 81#define NVIDIA_T_RAID5_SYM 0x0095 /* RLQ = 03 */ 82#define NVIDIA_T_RAID10 0x008a 83#define NVIDIA_T_RAID01 0x8180 84#define NVIDIA_T_CONCAT 0x00ff 85 86 uint16_t dummy_3; 87 uint32_t strip_sectors; 88 uint32_t strip_bytes; 89 uint32_t strip_shift; 90 uint32_t strip_mask; 91 uint32_t stripe_sectors; 92 uint32_t stripe_bytes; 93 uint32_t rebuild_lba; 94 uint32_t orig_type; 95 uint32_t orig_total_sectors; 96 uint32_t status; 97#define NVIDIA_S_BOOTABLE 0x00000001 98#define NVIDIA_S_DEGRADED 0x00000002 99 100 uint32_t filler[98]; 101} __packed; 102 103struct g_raid_md_nvidia_perdisk { 104 struct nvidia_raid_conf *pd_meta; 105 int pd_disk_pos; 106 off_t pd_disk_size; 107}; 108 109struct g_raid_md_nvidia_object { 110 struct g_raid_md_object mdio_base; 111 uint64_t mdio_volume_id[2]; 112 struct nvidia_raid_conf *mdio_meta; 113 struct callout mdio_start_co; /* STARTING state timer. */ 114 int mdio_total_disks; 115 int mdio_disks_present; 116 int mdio_started; 117 int mdio_incomplete; 118 struct root_hold_token *mdio_rootmount; /* Root mount delay token. */ 119}; 120 121static g_raid_md_create_t g_raid_md_create_nvidia; 122static g_raid_md_taste_t g_raid_md_taste_nvidia; 123static g_raid_md_event_t g_raid_md_event_nvidia; 124static g_raid_md_ctl_t g_raid_md_ctl_nvidia; 125static g_raid_md_write_t g_raid_md_write_nvidia; 126static g_raid_md_fail_disk_t g_raid_md_fail_disk_nvidia; 127static g_raid_md_free_disk_t g_raid_md_free_disk_nvidia; 128static g_raid_md_free_t g_raid_md_free_nvidia; 129 130static kobj_method_t g_raid_md_nvidia_methods[] = { 131 KOBJMETHOD(g_raid_md_create, g_raid_md_create_nvidia), 132 KOBJMETHOD(g_raid_md_taste, g_raid_md_taste_nvidia), 133 KOBJMETHOD(g_raid_md_event, g_raid_md_event_nvidia), 134 KOBJMETHOD(g_raid_md_ctl, g_raid_md_ctl_nvidia), 135 KOBJMETHOD(g_raid_md_write, g_raid_md_write_nvidia), 136 KOBJMETHOD(g_raid_md_fail_disk, g_raid_md_fail_disk_nvidia), 137 KOBJMETHOD(g_raid_md_free_disk, g_raid_md_free_disk_nvidia), 138 KOBJMETHOD(g_raid_md_free, g_raid_md_free_nvidia), 139 { 0, 0 } 140}; 141 142static struct g_raid_md_class g_raid_md_nvidia_class = { 143 "NVIDIA", 144 g_raid_md_nvidia_methods, 145 sizeof(struct g_raid_md_nvidia_object), 146 .mdc_enable = 1, 147 .mdc_priority = 100 148}; 149 150static int NVIDIANodeID = 1; 151 152static void 153g_raid_md_nvidia_print(struct nvidia_raid_conf *meta) 154{ 155 156 if (g_raid_debug < 1) 157 return; 158 159 printf("********* ATA NVIDIA RAID Metadata *********\n"); 160 printf("nvidia_id <%.8s>\n", meta->nvidia_id); 161 printf("config_size %u\n", meta->config_size); 162 printf("checksum 0x%08x\n", meta->checksum); 163 printf("version 0x%04x\n", meta->version); 164 printf("disk_number %d\n", meta->disk_number); 165 printf("dummy_0 0x%02x\n", meta->dummy_0); 166 printf("total_sectors %u\n", meta->total_sectors); 167 printf("sector_size %u\n", meta->sector_size); 168 printf("name <%.16s>\n", meta->name); 169 printf("revision 0x%02x%02x%02x%02x\n", 170 meta->revision[0], meta->revision[1], 171 meta->revision[2], meta->revision[3]); 172 printf("disk_status 0x%08x\n", meta->disk_status); 173 printf("magic_0 0x%08x\n", meta->magic_0); 174 printf("volume_id 0x%016jx%016jx\n", 175 meta->volume_id[1], meta->volume_id[0]); 176 printf("state 0x%02x\n", meta->state); 177 printf("array_width %u\n", meta->array_width); 178 printf("total_disks %u\n", meta->total_disks); 179 printf("orig_array_width %u\n", meta->orig_array_width); 180 printf("type 0x%04x\n", meta->type); 181 printf("dummy_3 0x%04x\n", meta->dummy_3); 182 printf("strip_sectors %u\n", meta->strip_sectors); 183 printf("strip_bytes %u\n", meta->strip_bytes); 184 printf("strip_shift %u\n", meta->strip_shift); 185 printf("strip_mask 0x%08x\n", meta->strip_mask); 186 printf("stripe_sectors %u\n", meta->stripe_sectors); 187 printf("stripe_bytes %u\n", meta->stripe_bytes); 188 printf("rebuild_lba %u\n", meta->rebuild_lba); 189 printf("orig_type 0x%04x\n", meta->orig_type); 190 printf("orig_total_sectors %u\n", meta->orig_total_sectors); 191 printf("status 0x%08x\n", meta->status); 192 printf("=================================================\n"); 193} 194 195static struct nvidia_raid_conf * 196nvidia_meta_copy(struct nvidia_raid_conf *meta) 197{ 198 struct nvidia_raid_conf *nmeta; 199 200 nmeta = malloc(sizeof(*meta), M_MD_NVIDIA, M_WAITOK); 201 memcpy(nmeta, meta, sizeof(*meta)); 202 return (nmeta); 203} 204 205static int 206nvidia_meta_translate_disk(struct nvidia_raid_conf *meta, int md_disk_pos) 207{ 208 int disk_pos; 209 210 if (md_disk_pos >= 0 && meta->type == NVIDIA_T_RAID01) { 211 disk_pos = (md_disk_pos / meta->array_width) + 212 (md_disk_pos % meta->array_width) * meta->array_width; 213 } else 214 disk_pos = md_disk_pos; 215 return (disk_pos); 216} 217 218static void 219nvidia_meta_get_name(struct nvidia_raid_conf *meta, char *buf) 220{ 221 int i; 222 223 strncpy(buf, meta->name, 16); 224 buf[16] = 0; 225 for (i = 15; i >= 0; i--) { 226 if (buf[i] > 0x20) 227 break; 228 buf[i] = 0; 229 } 230} 231 232static void 233nvidia_meta_put_name(struct nvidia_raid_conf *meta, char *buf) 234{ 235 236 memset(meta->name, 0x20, 16); 237 memcpy(meta->name, buf, MIN(strlen(buf), 16)); 238} 239 240static struct nvidia_raid_conf * 241nvidia_meta_read(struct g_consumer *cp) 242{ 243 struct g_provider *pp; 244 struct nvidia_raid_conf *meta; 245 char *buf; 246 int error, i; 247 uint32_t checksum, *ptr; 248 249 pp = cp->provider; 250 251 /* Read the anchor sector. */ 252 buf = g_read_data(cp, 253 pp->mediasize - 2 * pp->sectorsize, pp->sectorsize, &error); 254 if (buf == NULL) { 255 G_RAID_DEBUG(1, "Cannot read metadata from %s (error=%d).", 256 pp->name, error); 257 return (NULL); 258 } 259 meta = malloc(sizeof(*meta), M_MD_NVIDIA, M_WAITOK); 260 memcpy(meta, buf, min(sizeof(*meta), pp->sectorsize)); 261 g_free(buf); 262 263 /* Check if this is an NVIDIA RAID struct */ 264 if (strncmp(meta->nvidia_id, NVIDIA_MAGIC, strlen(NVIDIA_MAGIC))) { 265 G_RAID_DEBUG(1, "NVIDIA signature check failed on %s", pp->name); 266 free(meta, M_MD_NVIDIA); 267 return (NULL); 268 } 269 if (meta->config_size > 128 || 270 meta->config_size < 30) { 271 G_RAID_DEBUG(1, "NVIDIA metadata size looks wrong: %d", 272 meta->config_size); 273 free(meta, M_MD_NVIDIA); 274 return (NULL); 275 } 276 277 /* Check metadata checksum. */ 278 for (checksum = 0, ptr = (uint32_t *)meta, 279 i = 0; i < meta->config_size; i++) 280 checksum += *ptr++; 281 if (checksum != 0) { 282 G_RAID_DEBUG(1, "NVIDIA checksum check failed on %s", pp->name); 283 free(meta, M_MD_NVIDIA); 284 return (NULL); 285 } 286 287 /* Check volume state. */ 288 if (meta->state != NVIDIA_S_IDLE && meta->state != NVIDIA_S_INIT && 289 meta->state != NVIDIA_S_REBUILD && meta->state != NVIDIA_S_SYNC) { 290 G_RAID_DEBUG(1, "NVIDIA unknown state on %s (0x%02x)", 291 pp->name, meta->state); 292 free(meta, M_MD_NVIDIA); 293 return (NULL); 294 } 295 296 /* Check raid type. */ 297 if (meta->type != NVIDIA_T_RAID0 && meta->type != NVIDIA_T_RAID1 && 298 meta->type != NVIDIA_T_RAID3 && meta->type != NVIDIA_T_RAID5 && 299 meta->type != NVIDIA_T_RAID5_SYM && 300 meta->type != NVIDIA_T_RAID01 && meta->type != NVIDIA_T_CONCAT) { 301 G_RAID_DEBUG(1, "NVIDIA unknown RAID level on %s (0x%02x)", 302 pp->name, meta->type); 303 free(meta, M_MD_NVIDIA); 304 return (NULL); 305 } 306 307 return (meta); 308} 309 310static int 311nvidia_meta_write(struct g_consumer *cp, struct nvidia_raid_conf *meta) 312{ 313 struct g_provider *pp; 314 char *buf; 315 int error, i; 316 uint32_t checksum, *ptr; 317 318 pp = cp->provider; 319 320 /* Recalculate checksum for case if metadata were changed. */ 321 meta->checksum = 0; 322 for (checksum = 0, ptr = (uint32_t *)meta, 323 i = 0; i < meta->config_size; i++) 324 checksum += *ptr++; 325 meta->checksum -= checksum; 326 327 /* Create and fill buffer. */ 328 buf = malloc(pp->sectorsize, M_MD_NVIDIA, M_WAITOK | M_ZERO); 329 memcpy(buf, meta, sizeof(*meta)); 330 331 /* Write metadata. */ 332 error = g_write_data(cp, 333 pp->mediasize - 2 * pp->sectorsize, buf, pp->sectorsize); 334 if (error != 0) { 335 G_RAID_DEBUG(1, "Cannot write metadata to %s (error=%d).", 336 pp->name, error); 337 } 338 339 free(buf, M_MD_NVIDIA); 340 return (error); 341} 342 343static int 344nvidia_meta_erase(struct g_consumer *cp) 345{ 346 struct g_provider *pp; 347 char *buf; 348 int error; 349 350 pp = cp->provider; 351 buf = malloc(pp->sectorsize, M_MD_NVIDIA, M_WAITOK | M_ZERO); 352 error = g_write_data(cp, 353 pp->mediasize - 2 * pp->sectorsize, buf, pp->sectorsize); 354 if (error != 0) { 355 G_RAID_DEBUG(1, "Cannot erase metadata on %s (error=%d).", 356 pp->name, error); 357 } 358 free(buf, M_MD_NVIDIA); 359 return (error); 360} 361 362static struct g_raid_disk * 363g_raid_md_nvidia_get_disk(struct g_raid_softc *sc, int id) 364{ 365 struct g_raid_disk *disk; 366 struct g_raid_md_nvidia_perdisk *pd; 367 368 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 369 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 370 if (pd->pd_disk_pos == id) 371 break; 372 } 373 return (disk); 374} 375 376static int 377g_raid_md_nvidia_supported(int level, int qual, int disks, int force) 378{ 379 380 switch (level) { 381 case G_RAID_VOLUME_RL_RAID0: 382 if (disks < 1) 383 return (0); 384 if (!force && (disks < 2 || disks > 6)) 385 return (0); 386 break; 387 case G_RAID_VOLUME_RL_RAID1: 388 if (disks < 1) 389 return (0); 390 if (!force && (disks != 2)) 391 return (0); 392 break; 393 case G_RAID_VOLUME_RL_RAID1E: 394 if (disks < 2) 395 return (0); 396 if (disks % 2 != 0) 397 return (0); 398 if (!force && (disks < 4)) 399 return (0); 400 break; 401 case G_RAID_VOLUME_RL_SINGLE: 402 if (disks != 1) 403 return (0); 404 break; 405 case G_RAID_VOLUME_RL_CONCAT: 406 if (disks < 2) 407 return (0); 408 break; 409 case G_RAID_VOLUME_RL_RAID5: 410 if (disks < 3) 411 return (0); 412 if (qual != G_RAID_VOLUME_RLQ_R5LA && 413 qual != G_RAID_VOLUME_RLQ_R5LS) 414 return (0); 415 break; 416 default: 417 return (0); 418 } 419 if (level != G_RAID_VOLUME_RL_RAID5 && qual != G_RAID_VOLUME_RLQ_NONE) 420 return (0); 421 return (1); 422} 423 424static int 425g_raid_md_nvidia_start_disk(struct g_raid_disk *disk) 426{ 427 struct g_raid_softc *sc; 428 struct g_raid_subdisk *sd, *tmpsd; 429 struct g_raid_disk *olddisk, *tmpdisk; 430 struct g_raid_md_object *md; 431 struct g_raid_md_nvidia_object *mdi; 432 struct g_raid_md_nvidia_perdisk *pd, *oldpd; 433 struct nvidia_raid_conf *meta; 434 int disk_pos, resurrection = 0; 435 436 sc = disk->d_softc; 437 md = sc->sc_md; 438 mdi = (struct g_raid_md_nvidia_object *)md; 439 meta = mdi->mdio_meta; 440 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 441 olddisk = NULL; 442 443 /* Find disk position in metadata by it's serial. */ 444 if (pd->pd_meta != NULL) { 445 disk_pos = pd->pd_meta->disk_number; 446 if (disk_pos >= meta->total_disks || mdi->mdio_started) 447 disk_pos = -3; 448 } else 449 disk_pos = -3; 450 /* For RAID0+1 we need to translate order. */ 451 disk_pos = nvidia_meta_translate_disk(meta, disk_pos); 452 if (disk_pos < 0) { 453 G_RAID_DEBUG1(1, sc, "Unknown, probably new or stale disk"); 454 /* If we are in the start process, that's all for now. */ 455 if (!mdi->mdio_started) 456 goto nofit; 457 /* 458 * If we have already started - try to get use of the disk. 459 * Try to replace OFFLINE disks first, then FAILED. 460 */ 461 TAILQ_FOREACH(tmpdisk, &sc->sc_disks, d_next) { 462 if (tmpdisk->d_state != G_RAID_DISK_S_OFFLINE && 463 tmpdisk->d_state != G_RAID_DISK_S_FAILED) 464 continue; 465 /* Make sure this disk is big enough. */ 466 TAILQ_FOREACH(sd, &tmpdisk->d_subdisks, sd_next) { 467 if (sd->sd_offset + sd->sd_size + 2 * 512 > 468 pd->pd_disk_size) { 469 G_RAID_DEBUG1(1, sc, 470 "Disk too small (%ju < %ju)", 471 pd->pd_disk_size, 472 sd->sd_offset + sd->sd_size + 512); 473 break; 474 } 475 } 476 if (sd != NULL) 477 continue; 478 if (tmpdisk->d_state == G_RAID_DISK_S_OFFLINE) { 479 olddisk = tmpdisk; 480 break; 481 } else if (olddisk == NULL) 482 olddisk = tmpdisk; 483 } 484 if (olddisk == NULL) { 485nofit: 486 g_raid_change_disk_state(disk, G_RAID_DISK_S_SPARE); 487 return (1); 488 } 489 oldpd = (struct g_raid_md_nvidia_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_nvidia_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 then 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_nvidia_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; 516 517 /* If it was placeholder -- destroy it. */ 518 if (olddisk->d_state == G_RAID_DISK_S_OFFLINE) { 519 g_raid_destroy_disk(olddisk); 520 } else { 521 /* Otherwise, make it STALE_FAILED. */ 522 g_raid_change_disk_state(olddisk, G_RAID_DISK_S_STALE_FAILED); 523 } 524 525 /* Welcome the new disk. */ 526 if (resurrection) 527 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE); 528 else// if (pd->pd_meta->disk_status == NVIDIA_S_CURRENT || 529 //pd->pd_meta->disk_status == NVIDIA_S_REBUILD) 530 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE); 531// else 532// g_raid_change_disk_state(disk, G_RAID_DISK_S_FAILED); 533 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 534 535 /* 536 * Different disks may have different sizes, 537 * in concat mode. Update from real disk size. 538 */ 539 if (meta->type == NVIDIA_T_CONCAT) 540 sd->sd_size = pd->pd_disk_size - 0x800 * 512; 541 542 if (resurrection) { 543 /* New or ex-spare disk. */ 544 g_raid_change_subdisk_state(sd, 545 G_RAID_SUBDISK_S_NEW); 546 } else if (meta->state == NVIDIA_S_REBUILD && 547 (pd->pd_meta->disk_status & 0x100)) { 548 /* Rebuilding disk. */ 549 g_raid_change_subdisk_state(sd, 550 G_RAID_SUBDISK_S_REBUILD); 551 sd->sd_rebuild_pos = (off_t)pd->pd_meta->rebuild_lba / 552 meta->array_width * pd->pd_meta->sector_size; 553 } else if (meta->state == NVIDIA_S_SYNC) { 554 /* Resyncing/dirty disk. */ 555 g_raid_change_subdisk_state(sd, 556 G_RAID_SUBDISK_S_RESYNC); 557 sd->sd_rebuild_pos = (off_t)pd->pd_meta->rebuild_lba / 558 meta->array_width * pd->pd_meta->sector_size; 559 } else { 560 /* Up to date disk. */ 561 g_raid_change_subdisk_state(sd, 562 G_RAID_SUBDISK_S_ACTIVE); 563 } 564 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 565 G_RAID_EVENT_SUBDISK); 566 } 567 568 /* Update status of our need for spare. */ 569 if (mdi->mdio_started) { 570 mdi->mdio_incomplete = 571 (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < 572 mdi->mdio_total_disks); 573 } 574 575 return (resurrection); 576} 577 578static void 579g_disk_md_nvidia_retaste(void *arg, int pending) 580{ 581 582 G_RAID_DEBUG(1, "Array is not complete, trying to retaste."); 583 g_retaste(&g_raid_class); 584 free(arg, M_MD_NVIDIA); 585} 586 587static void 588g_raid_md_nvidia_refill(struct g_raid_softc *sc) 589{ 590 struct g_raid_md_object *md; 591 struct g_raid_md_nvidia_object *mdi; 592 struct g_raid_disk *disk; 593 struct task *task; 594 int update, na; 595 596 md = sc->sc_md; 597 mdi = (struct g_raid_md_nvidia_object *)md; 598 update = 0; 599 do { 600 /* Make sure we miss anything. */ 601 na = g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE); 602 if (na == mdi->mdio_total_disks) 603 break; 604 605 G_RAID_DEBUG1(1, md->mdo_softc, 606 "Array is not complete (%d of %d), " 607 "trying to refill.", na, mdi->mdio_total_disks); 608 609 /* Try to get use some of STALE disks. */ 610 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 611 if (disk->d_state == G_RAID_DISK_S_STALE) { 612 update += g_raid_md_nvidia_start_disk(disk); 613 if (disk->d_state == G_RAID_DISK_S_ACTIVE) 614 break; 615 } 616 } 617 if (disk != NULL) 618 continue; 619 620 /* Try to get use some of SPARE disks. */ 621 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 622 if (disk->d_state == G_RAID_DISK_S_SPARE) { 623 update += g_raid_md_nvidia_start_disk(disk); 624 if (disk->d_state == G_RAID_DISK_S_ACTIVE) 625 break; 626 } 627 } 628 } while (disk != NULL); 629 630 /* Write new metadata if we changed something. */ 631 if (update) 632 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 633 634 /* Update status of our need for spare. */ 635 mdi->mdio_incomplete = (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < 636 mdi->mdio_total_disks); 637 638 /* Request retaste hoping to find spare. */ 639 if (mdi->mdio_incomplete) { 640 task = malloc(sizeof(struct task), 641 M_MD_NVIDIA, M_WAITOK | M_ZERO); 642 TASK_INIT(task, 0, g_disk_md_nvidia_retaste, task); 643 taskqueue_enqueue(taskqueue_swi, task); 644 } 645} 646 647static void 648g_raid_md_nvidia_start(struct g_raid_softc *sc) 649{ 650 struct g_raid_md_object *md; 651 struct g_raid_md_nvidia_object *mdi; 652 struct g_raid_md_nvidia_perdisk *pd; 653 struct nvidia_raid_conf *meta; 654 struct g_raid_volume *vol; 655 struct g_raid_subdisk *sd; 656 struct g_raid_disk *disk; 657 off_t size; 658 int j, disk_pos; 659 char buf[17]; 660 661 md = sc->sc_md; 662 mdi = (struct g_raid_md_nvidia_object *)md; 663 meta = mdi->mdio_meta; 664 665 /* Create volumes and subdisks. */ 666 nvidia_meta_get_name(meta, buf); 667 vol = g_raid_create_volume(sc, buf, -1); 668 vol->v_mediasize = (off_t)meta->total_sectors * 512; 669 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_NONE; 670 if (meta->type == NVIDIA_T_RAID0) { 671 vol->v_raid_level = G_RAID_VOLUME_RL_RAID0; 672 size = vol->v_mediasize / mdi->mdio_total_disks; 673 } else if (meta->type == NVIDIA_T_RAID1) { 674 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1; 675 size = vol->v_mediasize; 676 } else if (meta->type == NVIDIA_T_RAID01) { 677 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1E; 678 size = vol->v_mediasize / (mdi->mdio_total_disks / 2); 679 } else if (meta->type == NVIDIA_T_CONCAT) { 680 if (mdi->mdio_total_disks == 1) 681 vol->v_raid_level = G_RAID_VOLUME_RL_SINGLE; 682 else 683 vol->v_raid_level = G_RAID_VOLUME_RL_CONCAT; 684 size = 0; 685 } else if (meta->type == NVIDIA_T_RAID5) { 686 vol->v_raid_level = G_RAID_VOLUME_RL_RAID5; 687 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_R5LA; 688 size = vol->v_mediasize / (mdi->mdio_total_disks - 1); 689 } else if (meta->type == NVIDIA_T_RAID5_SYM) { 690 vol->v_raid_level = G_RAID_VOLUME_RL_RAID5; 691 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_R5LS; 692 size = vol->v_mediasize / (mdi->mdio_total_disks - 1); 693 } else { 694 vol->v_raid_level = G_RAID_VOLUME_RL_UNKNOWN; 695 size = 0; 696 } 697 vol->v_strip_size = meta->strip_sectors * 512; //ZZZ 698 vol->v_disks_count = mdi->mdio_total_disks; 699 vol->v_sectorsize = 512; //ZZZ 700 for (j = 0; j < vol->v_disks_count; j++) { 701 sd = &vol->v_subdisks[j]; 702 sd->sd_offset = 0; 703 sd->sd_size = size; 704 } 705 g_raid_start_volume(vol); 706 707 /* Create disk placeholders to store data for later writing. */ 708 for (disk_pos = 0; disk_pos < mdi->mdio_total_disks; disk_pos++) { 709 pd = malloc(sizeof(*pd), M_MD_NVIDIA, M_WAITOK | M_ZERO); 710 pd->pd_disk_pos = disk_pos; 711 disk = g_raid_create_disk(sc); 712 disk->d_md_data = (void *)pd; 713 disk->d_state = G_RAID_DISK_S_OFFLINE; 714 sd = &vol->v_subdisks[disk_pos]; 715 sd->sd_disk = disk; 716 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 717 } 718 719 /* Make all disks found till the moment take their places. */ 720 do { 721 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 722 if (disk->d_state == G_RAID_DISK_S_NONE) { 723 g_raid_md_nvidia_start_disk(disk); 724 break; 725 } 726 } 727 } while (disk != NULL); 728 729 mdi->mdio_started = 1; 730 G_RAID_DEBUG1(0, sc, "Array started."); 731 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 732 733 /* Pickup any STALE/SPARE disks to refill array if needed. */ 734 g_raid_md_nvidia_refill(sc); 735 736 g_raid_event_send(vol, G_RAID_VOLUME_E_START, G_RAID_EVENT_VOLUME); 737 738 callout_stop(&mdi->mdio_start_co); 739 G_RAID_DEBUG1(1, sc, "root_mount_rel %p", mdi->mdio_rootmount); 740 root_mount_rel(mdi->mdio_rootmount); 741 mdi->mdio_rootmount = NULL; 742} 743 744static void 745g_raid_md_nvidia_new_disk(struct g_raid_disk *disk) 746{ 747 struct g_raid_softc *sc; 748 struct g_raid_md_object *md; 749 struct g_raid_md_nvidia_object *mdi; 750 struct nvidia_raid_conf *pdmeta; 751 struct g_raid_md_nvidia_perdisk *pd; 752 753 sc = disk->d_softc; 754 md = sc->sc_md; 755 mdi = (struct g_raid_md_nvidia_object *)md; 756 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 757 pdmeta = pd->pd_meta; 758 759 if (mdi->mdio_started) { 760 if (g_raid_md_nvidia_start_disk(disk)) 761 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 762 } else { 763 if (mdi->mdio_meta == NULL || 764 mdi->mdio_meta->disk_number >= mdi->mdio_meta->total_disks) { 765 G_RAID_DEBUG1(1, sc, "Newer disk"); 766 if (mdi->mdio_meta != NULL) 767 free(mdi->mdio_meta, M_MD_NVIDIA); 768 mdi->mdio_meta = nvidia_meta_copy(pdmeta); 769 mdi->mdio_total_disks = pdmeta->total_disks; 770 mdi->mdio_disks_present = 1; 771 } else if (pdmeta->disk_number < mdi->mdio_meta->total_disks) { 772 mdi->mdio_disks_present++; 773 G_RAID_DEBUG1(1, sc, "Matching disk (%d of %d up)", 774 mdi->mdio_disks_present, 775 mdi->mdio_total_disks); 776 } else 777 G_RAID_DEBUG1(1, sc, "Spare disk"); 778 779 /* If we collected all needed disks - start array. */ 780 if (mdi->mdio_disks_present == mdi->mdio_total_disks) 781 g_raid_md_nvidia_start(sc); 782 } 783} 784 785static void 786g_raid_nvidia_go(void *arg) 787{ 788 struct g_raid_softc *sc; 789 struct g_raid_md_object *md; 790 struct g_raid_md_nvidia_object *mdi; 791 792 sc = arg; 793 md = sc->sc_md; 794 mdi = (struct g_raid_md_nvidia_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 801static int 802g_raid_md_create_nvidia(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_nvidia_object *mdi; 807 char name[32]; 808 809 mdi = (struct g_raid_md_nvidia_object *)md; 810 arc4rand(&mdi->mdio_volume_id, 16, 0); 811 snprintf(name, sizeof(name), "NVIDIA-%d", 812 atomic_fetchadd_int(&NVIDIANodeID, 1)); 813 sc = g_raid_create_node(mp, name, md); 814 if (sc == NULL) 815 return (G_RAID_MD_TASTE_FAIL); 816 md->mdo_softc = sc; 817 *gp = sc->sc_geom; 818 return (G_RAID_MD_TASTE_NEW); 819} 820 821static int 822g_raid_md_taste_nvidia(struct g_raid_md_object *md, struct g_class *mp, 823 struct g_consumer *cp, struct g_geom **gp) 824{ 825 struct g_consumer *rcp; 826 struct g_provider *pp; 827 struct g_raid_md_nvidia_object *mdi, *mdi1; 828 struct g_raid_softc *sc; 829 struct g_raid_disk *disk; 830 struct nvidia_raid_conf *meta; 831 struct g_raid_md_nvidia_perdisk *pd; 832 struct g_geom *geom; 833 int error, result, spare, len; 834 char name[32]; 835 uint16_t vendor; 836 837 G_RAID_DEBUG(1, "Tasting NVIDIA on %s", cp->provider->name); 838 mdi = (struct g_raid_md_nvidia_object *)md; 839 pp = cp->provider; 840 841 /* Read metadata from device. */ 842 meta = NULL; 843 vendor = 0xffff; 844 if (g_access(cp, 1, 0, 0) != 0) 845 return (G_RAID_MD_TASTE_FAIL); 846 g_topology_unlock(); 847 len = 2; 848 if (pp->geom->rank == 1) 849 g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor); 850 meta = nvidia_meta_read(cp); 851 g_topology_lock(); 852 g_access(cp, -1, 0, 0); 853 if (meta == NULL) { 854 if (g_raid_aggressive_spare) { 855 if (vendor == 0x10de) { 856 G_RAID_DEBUG(1, 857 "No NVIDIA metadata, forcing spare."); 858 spare = 2; 859 goto search; 860 } else { 861 G_RAID_DEBUG(1, 862 "NVIDIA vendor mismatch 0x%04x != 0x10de", 863 vendor); 864 } 865 } 866 return (G_RAID_MD_TASTE_FAIL); 867 } 868 869 /* Metadata valid. Print it. */ 870 g_raid_md_nvidia_print(meta); 871 G_RAID_DEBUG(1, "NVIDIA disk position %d", meta->disk_number); 872 spare = 0;//(meta->type == NVIDIA_T_SPARE) ? 1 : 0; 873 874search: 875 /* Search for matching node. */ 876 sc = NULL; 877 mdi1 = NULL; 878 LIST_FOREACH(geom, &mp->geom, geom) { 879 sc = geom->softc; 880 if (sc == NULL) 881 continue; 882 if (sc->sc_stopping != 0) 883 continue; 884 if (sc->sc_md->mdo_class != md->mdo_class) 885 continue; 886 mdi1 = (struct g_raid_md_nvidia_object *)sc->sc_md; 887 if (spare) { 888 if (mdi1->mdio_incomplete) 889 break; 890 } else { 891 if (memcmp(&mdi1->mdio_volume_id, 892 &meta->volume_id, 16) == 0) 893 break; 894 } 895 } 896 897 /* Found matching node. */ 898 if (geom != NULL) { 899 G_RAID_DEBUG(1, "Found matching array %s", sc->sc_name); 900 result = G_RAID_MD_TASTE_EXISTING; 901 902 } else if (spare) { /* Not found needy node -- left for later. */ 903 G_RAID_DEBUG(1, "Spare is not needed at this time"); 904 goto fail1; 905 906 } else { /* Not found matching node -- create one. */ 907 result = G_RAID_MD_TASTE_NEW; 908 memcpy(&mdi->mdio_volume_id, &meta->volume_id, 16); 909 snprintf(name, sizeof(name), "NVIDIA-%d", 910 atomic_fetchadd_int(&NVIDIANodeID, 1)); 911 sc = g_raid_create_node(mp, name, md); 912 md->mdo_softc = sc; 913 geom = sc->sc_geom; 914 callout_init(&mdi->mdio_start_co, 1); 915 callout_reset(&mdi->mdio_start_co, g_raid_start_timeout * hz, 916 g_raid_nvidia_go, sc); 917 mdi->mdio_rootmount = root_mount_hold("GRAID-NVIDIA"); 918 G_RAID_DEBUG1(1, sc, "root_mount_hold %p", mdi->mdio_rootmount); 919 } 920 921 rcp = g_new_consumer(geom); 922 g_attach(rcp, pp); 923 if (g_access(rcp, 1, 1, 1) != 0) 924 ; //goto fail1; 925 926 g_topology_unlock(); 927 sx_xlock(&sc->sc_lock); 928 929 pd = malloc(sizeof(*pd), M_MD_NVIDIA, M_WAITOK | M_ZERO); 930 pd->pd_meta = meta; 931 if (spare == 2) { 932 pd->pd_disk_pos = -3; 933 } else { 934 pd->pd_disk_pos = -1; 935 } 936 pd->pd_disk_size = pp->mediasize; 937 disk = g_raid_create_disk(sc); 938 disk->d_md_data = (void *)pd; 939 disk->d_consumer = rcp; 940 rcp->private = disk; 941 942 /* Read kernel dumping information. */ 943 disk->d_kd.offset = 0; 944 disk->d_kd.length = OFF_MAX; 945 len = sizeof(disk->d_kd); 946 error = g_io_getattr("GEOM::kerneldump", rcp, &len, &disk->d_kd); 947 if (disk->d_kd.di.dumper == NULL) 948 G_RAID_DEBUG1(2, sc, "Dumping not supported by %s: %d.", 949 rcp->provider->name, error); 950 951 g_raid_md_nvidia_new_disk(disk); 952 953 sx_xunlock(&sc->sc_lock); 954 g_topology_lock(); 955 *gp = geom; 956 return (result); 957fail1: 958 free(meta, M_MD_NVIDIA); 959 return (G_RAID_MD_TASTE_FAIL); 960} 961 962static int 963g_raid_md_event_nvidia(struct g_raid_md_object *md, 964 struct g_raid_disk *disk, u_int event) 965{ 966 struct g_raid_softc *sc; 967 struct g_raid_subdisk *sd; 968 struct g_raid_md_nvidia_object *mdi; 969 struct g_raid_md_nvidia_perdisk *pd; 970 971 sc = md->mdo_softc; 972 mdi = (struct g_raid_md_nvidia_object *)md; 973 if (disk == NULL) { 974 switch (event) { 975 case G_RAID_NODE_E_START: 976 if (!mdi->mdio_started) { 977 /* Bump volume ID to drop missing disks. */ 978 arc4rand(&mdi->mdio_volume_id, 16, 0); 979 g_raid_md_nvidia_start(sc); 980 } 981 return (0); 982 } 983 return (-1); 984 } 985 pd = (struct g_raid_md_nvidia_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 if (mdi->mdio_started) { 1008 /* Bump volume ID to prevent disk resurrection. */ 1009 if (pd->pd_disk_pos >= 0) 1010 arc4rand(&mdi->mdio_volume_id, 16, 0); 1011 1012 /* Write updated metadata to all disks. */ 1013 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 1014 } 1015 1016 /* Check if anything left except placeholders. */ 1017 if (g_raid_ndisks(sc, -1) == 1018 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1019 g_raid_destroy_node(sc, 0); 1020 else 1021 g_raid_md_nvidia_refill(sc); 1022 return (0); 1023 } 1024 return (-2); 1025} 1026 1027static int 1028g_raid_md_ctl_nvidia(struct g_raid_md_object *md, 1029 struct gctl_req *req) 1030{ 1031 struct g_raid_softc *sc; 1032 struct g_raid_volume *vol; 1033 struct g_raid_subdisk *sd; 1034 struct g_raid_disk *disk; 1035 struct g_raid_md_nvidia_object *mdi; 1036 struct g_raid_md_nvidia_perdisk *pd; 1037 struct g_consumer *cp; 1038 struct g_provider *pp; 1039 char arg[16]; 1040 const char *verb, *volname, *levelname, *diskname; 1041 int *nargs, *force; 1042 off_t size, sectorsize, strip, volsize; 1043 intmax_t *sizearg, *striparg; 1044 int numdisks, i, len, level, qual, update; 1045 int error; 1046 1047 sc = md->mdo_softc; 1048 mdi = (struct g_raid_md_nvidia_object *)md; 1049 verb = gctl_get_param(req, "verb", NULL); 1050 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 1051 error = 0; 1052 if (strcmp(verb, "label") == 0) { 1053 1054 if (*nargs < 4) { 1055 gctl_error(req, "Invalid number of arguments."); 1056 return (-1); 1057 } 1058 volname = gctl_get_asciiparam(req, "arg1"); 1059 if (volname == NULL) { 1060 gctl_error(req, "No volume name."); 1061 return (-2); 1062 } 1063 levelname = gctl_get_asciiparam(req, "arg2"); 1064 if (levelname == NULL) { 1065 gctl_error(req, "No RAID level."); 1066 return (-3); 1067 } 1068 if (strcasecmp(levelname, "RAID5") == 0) 1069 levelname = "RAID5-LS"; 1070 if (g_raid_volume_str2level(levelname, &level, &qual)) { 1071 gctl_error(req, "Unknown RAID level '%s'.", levelname); 1072 return (-4); 1073 } 1074 numdisks = *nargs - 3; 1075 force = gctl_get_paraml(req, "force", sizeof(*force)); 1076 if (!g_raid_md_nvidia_supported(level, qual, numdisks, 1077 force ? *force : 0)) { 1078 gctl_error(req, "Unsupported RAID level " 1079 "(0x%02x/0x%02x), or number of disks (%d).", 1080 level, qual, numdisks); 1081 return (-5); 1082 } 1083 1084 /* Search for disks, connect them and probe. */ 1085 size = 0x7fffffffffffffffllu; 1086 sectorsize = 0; 1087 for (i = 0; i < numdisks; i++) { 1088 snprintf(arg, sizeof(arg), "arg%d", i + 3); 1089 diskname = gctl_get_asciiparam(req, arg); 1090 if (diskname == NULL) { 1091 gctl_error(req, "No disk name (%s).", arg); 1092 error = -6; 1093 break; 1094 } 1095 if (strcmp(diskname, "NONE") == 0) { 1096 cp = NULL; 1097 pp = NULL; 1098 } else { 1099 g_topology_lock(); 1100 cp = g_raid_open_consumer(sc, diskname); 1101 if (cp == NULL) { 1102 gctl_error(req, "Can't open '%s'.", 1103 diskname); 1104 g_topology_unlock(); 1105 error = -7; 1106 break; 1107 } 1108 pp = cp->provider; 1109 } 1110 pd = malloc(sizeof(*pd), M_MD_NVIDIA, M_WAITOK | M_ZERO); 1111 pd->pd_disk_pos = i; 1112 disk = g_raid_create_disk(sc); 1113 disk->d_md_data = (void *)pd; 1114 disk->d_consumer = cp; 1115 if (cp == NULL) 1116 continue; 1117 cp->private = disk; 1118 g_topology_unlock(); 1119 1120 /* Read kernel dumping information. */ 1121 disk->d_kd.offset = 0; 1122 disk->d_kd.length = OFF_MAX; 1123 len = sizeof(disk->d_kd); 1124 g_io_getattr("GEOM::kerneldump", cp, &len, &disk->d_kd); 1125 if (disk->d_kd.di.dumper == NULL) 1126 G_RAID_DEBUG1(2, sc, 1127 "Dumping not supported by %s.", 1128 cp->provider->name); 1129 1130 pd->pd_disk_size = pp->mediasize; 1131 if (size > pp->mediasize) 1132 size = pp->mediasize; 1133 if (sectorsize < pp->sectorsize) 1134 sectorsize = pp->sectorsize; 1135 } 1136 if (error != 0) 1137 return (error); 1138 1139 if (sectorsize <= 0) { 1140 gctl_error(req, "Can't get sector size."); 1141 return (-8); 1142 } 1143 1144 /* Reserve space for metadata. */ 1145 size -= 2 * sectorsize; 1146 1147 /* Handle size argument. */ 1148 len = sizeof(*sizearg); 1149 sizearg = gctl_get_param(req, "size", &len); 1150 if (sizearg != NULL && len == sizeof(*sizearg) && 1151 *sizearg > 0) { 1152 if (*sizearg > size) { 1153 gctl_error(req, "Size too big %lld > %lld.", 1154 (long long)*sizearg, (long long)size); 1155 return (-9); 1156 } 1157 size = *sizearg; 1158 } 1159 1160 /* Handle strip argument. */ 1161 strip = 131072; 1162 len = sizeof(*striparg); 1163 striparg = gctl_get_param(req, "strip", &len); 1164 if (striparg != NULL && len == sizeof(*striparg) && 1165 *striparg > 0) { 1166 if (*striparg < sectorsize) { 1167 gctl_error(req, "Strip size too small."); 1168 return (-10); 1169 } 1170 if (*striparg % sectorsize != 0) { 1171 gctl_error(req, "Incorrect strip size."); 1172 return (-11); 1173 } 1174 if (strip > 65535 * sectorsize) { 1175 gctl_error(req, "Strip size too big."); 1176 return (-12); 1177 } 1178 strip = *striparg; 1179 } 1180 1181 /* Round size down to strip or sector. */ 1182 if (level == G_RAID_VOLUME_RL_RAID1) 1183 size -= (size % sectorsize); 1184 else if (level == G_RAID_VOLUME_RL_RAID1E && 1185 (numdisks & 1) != 0) 1186 size -= (size % (2 * strip)); 1187 else 1188 size -= (size % strip); 1189 if (size <= 0) { 1190 gctl_error(req, "Size too small."); 1191 return (-13); 1192 } 1193 1194 if (level == G_RAID_VOLUME_RL_RAID0 || 1195 level == G_RAID_VOLUME_RL_CONCAT || 1196 level == G_RAID_VOLUME_RL_SINGLE) 1197 volsize = size * numdisks; 1198 else if (level == G_RAID_VOLUME_RL_RAID1) 1199 volsize = size; 1200 else if (level == G_RAID_VOLUME_RL_RAID5) 1201 volsize = size * (numdisks - 1); 1202 else { /* RAID1E */ 1203 volsize = ((size * numdisks) / strip / 2) * 1204 strip; 1205 } 1206 if (volsize > 0xffffffffllu * sectorsize) { 1207 gctl_error(req, "Size too big."); 1208 return (-14); 1209 } 1210 1211 /* We have all we need, create things: volume, ... */ 1212 mdi->mdio_total_disks = numdisks; 1213 mdi->mdio_started = 1; 1214 vol = g_raid_create_volume(sc, volname, -1); 1215 vol->v_md_data = (void *)(intptr_t)0; 1216 vol->v_raid_level = level; 1217 vol->v_raid_level_qualifier = qual; 1218 vol->v_strip_size = strip; 1219 vol->v_disks_count = numdisks; 1220 vol->v_mediasize = volsize; 1221 vol->v_sectorsize = sectorsize; 1222 g_raid_start_volume(vol); 1223 1224 /* , and subdisks. */ 1225 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1226 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 1227 sd = &vol->v_subdisks[pd->pd_disk_pos]; 1228 sd->sd_disk = disk; 1229 sd->sd_offset = 0; 1230 sd->sd_size = size; 1231 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 1232 if (sd->sd_disk->d_consumer != NULL) { 1233 g_raid_change_disk_state(disk, 1234 G_RAID_DISK_S_ACTIVE); 1235 g_raid_change_subdisk_state(sd, 1236 G_RAID_SUBDISK_S_ACTIVE); 1237 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 1238 G_RAID_EVENT_SUBDISK); 1239 } else { 1240 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1241 } 1242 } 1243 1244 /* Write metadata based on created entities. */ 1245 G_RAID_DEBUG1(0, sc, "Array started."); 1246 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 1247 1248 /* Pickup any STALE/SPARE disks to refill array if needed. */ 1249 g_raid_md_nvidia_refill(sc); 1250 1251 g_raid_event_send(vol, G_RAID_VOLUME_E_START, 1252 G_RAID_EVENT_VOLUME); 1253 return (0); 1254 } 1255 if (strcmp(verb, "delete") == 0) { 1256 1257 /* Check if some volume is still open. */ 1258 force = gctl_get_paraml(req, "force", sizeof(*force)); 1259 if (force != NULL && *force == 0 && 1260 g_raid_nopens(sc) != 0) { 1261 gctl_error(req, "Some volume is still open."); 1262 return (-4); 1263 } 1264 1265 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1266 if (disk->d_consumer) 1267 nvidia_meta_erase(disk->d_consumer); 1268 } 1269 g_raid_destroy_node(sc, 0); 1270 return (0); 1271 } 1272 if (strcmp(verb, "remove") == 0 || 1273 strcmp(verb, "fail") == 0) { 1274 if (*nargs < 2) { 1275 gctl_error(req, "Invalid number of arguments."); 1276 return (-1); 1277 } 1278 for (i = 1; i < *nargs; i++) { 1279 snprintf(arg, sizeof(arg), "arg%d", i); 1280 diskname = gctl_get_asciiparam(req, arg); 1281 if (diskname == NULL) { 1282 gctl_error(req, "No disk name (%s).", arg); 1283 error = -2; 1284 break; 1285 } 1286 if (strncmp(diskname, "/dev/", 5) == 0) 1287 diskname += 5; 1288 1289 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1290 if (disk->d_consumer != NULL && 1291 disk->d_consumer->provider != NULL && 1292 strcmp(disk->d_consumer->provider->name, 1293 diskname) == 0) 1294 break; 1295 } 1296 if (disk == NULL) { 1297 gctl_error(req, "Disk '%s' not found.", 1298 diskname); 1299 error = -3; 1300 break; 1301 } 1302 1303 if (strcmp(verb, "fail") == 0) { 1304 g_raid_md_fail_disk_nvidia(md, NULL, disk); 1305 continue; 1306 } 1307 1308 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 1309 1310 /* Erase metadata on deleting disk. */ 1311 nvidia_meta_erase(disk->d_consumer); 1312 1313 /* If disk was assigned, just update statuses. */ 1314 if (pd->pd_disk_pos >= 0) { 1315 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1316 g_raid_kill_consumer(sc, disk->d_consumer); 1317 disk->d_consumer = NULL; 1318 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 1319 g_raid_change_subdisk_state(sd, 1320 G_RAID_SUBDISK_S_NONE); 1321 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED, 1322 G_RAID_EVENT_SUBDISK); 1323 } 1324 } else { 1325 /* Otherwise -- delete. */ 1326 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 1327 g_raid_destroy_disk(disk); 1328 } 1329 } 1330 1331 /* Write updated metadata to remaining disks. */ 1332 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 1333 1334 /* Check if anything left except placeholders. */ 1335 if (g_raid_ndisks(sc, -1) == 1336 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1337 g_raid_destroy_node(sc, 0); 1338 else 1339 g_raid_md_nvidia_refill(sc); 1340 return (error); 1341 } 1342 if (strcmp(verb, "insert") == 0) { 1343 if (*nargs < 2) { 1344 gctl_error(req, "Invalid number of arguments."); 1345 return (-1); 1346 } 1347 update = 0; 1348 for (i = 1; i < *nargs; i++) { 1349 /* Get disk name. */ 1350 snprintf(arg, sizeof(arg), "arg%d", i); 1351 diskname = gctl_get_asciiparam(req, arg); 1352 if (diskname == NULL) { 1353 gctl_error(req, "No disk name (%s).", arg); 1354 error = -3; 1355 break; 1356 } 1357 1358 /* Try to find provider with specified name. */ 1359 g_topology_lock(); 1360 cp = g_raid_open_consumer(sc, diskname); 1361 if (cp == NULL) { 1362 gctl_error(req, "Can't open disk '%s'.", 1363 diskname); 1364 g_topology_unlock(); 1365 error = -4; 1366 break; 1367 } 1368 pp = cp->provider; 1369 1370 pd = malloc(sizeof(*pd), M_MD_NVIDIA, M_WAITOK | M_ZERO); 1371 pd->pd_disk_pos = -3; 1372 pd->pd_disk_size = pp->mediasize; 1373 1374 disk = g_raid_create_disk(sc); 1375 disk->d_consumer = cp; 1376 disk->d_md_data = (void *)pd; 1377 cp->private = disk; 1378 g_topology_unlock(); 1379 1380 /* Read kernel dumping information. */ 1381 disk->d_kd.offset = 0; 1382 disk->d_kd.length = OFF_MAX; 1383 len = sizeof(disk->d_kd); 1384 g_io_getattr("GEOM::kerneldump", cp, &len, &disk->d_kd); 1385 if (disk->d_kd.di.dumper == NULL) 1386 G_RAID_DEBUG1(2, sc, 1387 "Dumping not supported by %s.", 1388 cp->provider->name); 1389 1390 /* Welcome the "new" disk. */ 1391 update += g_raid_md_nvidia_start_disk(disk); 1392 if (disk->d_state != G_RAID_DISK_S_SPARE && 1393 disk->d_state != G_RAID_DISK_S_ACTIVE) { 1394 gctl_error(req, "Disk '%s' doesn't fit.", 1395 diskname); 1396 g_raid_destroy_disk(disk); 1397 error = -8; 1398 break; 1399 } 1400 } 1401 1402 /* Write new metadata if we changed something. */ 1403 if (update) 1404 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 1405 return (error); 1406 } 1407 gctl_error(req, "Command '%s' is not supported.", verb); 1408 return (-100); 1409} 1410 1411static int 1412g_raid_md_write_nvidia(struct g_raid_md_object *md, struct g_raid_volume *tvol, 1413 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1414{ 1415 struct g_raid_softc *sc; 1416 struct g_raid_volume *vol; 1417 struct g_raid_subdisk *sd; 1418 struct g_raid_disk *disk; 1419 struct g_raid_md_nvidia_object *mdi; 1420 struct g_raid_md_nvidia_perdisk *pd; 1421 struct nvidia_raid_conf *meta; 1422 int i, spares; 1423 1424 sc = md->mdo_softc; 1425 mdi = (struct g_raid_md_nvidia_object *)md; 1426 1427 if (sc->sc_stopping == G_RAID_DESTROY_HARD) 1428 return (0); 1429 1430 /* There is only one volume. */ 1431 vol = TAILQ_FIRST(&sc->sc_volumes); 1432 1433 /* Fill global fields. */ 1434 meta = malloc(sizeof(*meta), M_MD_NVIDIA, M_WAITOK | M_ZERO); 1435 if (mdi->mdio_meta) 1436 memcpy(meta, mdi->mdio_meta, sizeof(*meta)); 1437 memcpy(meta->nvidia_id, NVIDIA_MAGIC, sizeof(NVIDIA_MAGIC) - 1); 1438 meta->config_size = 30; 1439 meta->version = 0x0064; 1440 meta->total_sectors = vol->v_mediasize / vol->v_sectorsize; 1441 meta->sector_size = vol->v_sectorsize; 1442 nvidia_meta_put_name(meta, vol->v_name); 1443 meta->magic_0 = NVIDIA_MAGIC0; 1444 memcpy(&meta->volume_id, &mdi->mdio_volume_id, 16); 1445 meta->state = NVIDIA_S_IDLE; 1446 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) 1447 meta->array_width = 1; 1448 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) 1449 meta->array_width = vol->v_disks_count / 2; 1450 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID5) 1451 meta->array_width = vol->v_disks_count - 1; 1452 else 1453 meta->array_width = vol->v_disks_count; 1454 meta->total_disks = vol->v_disks_count; 1455 meta->orig_array_width = meta->array_width; 1456 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID0) 1457 meta->type = NVIDIA_T_RAID0; 1458 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) 1459 meta->type = NVIDIA_T_RAID1; 1460 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) 1461 meta->type = NVIDIA_T_RAID01; 1462 else if (vol->v_raid_level == G_RAID_VOLUME_RL_CONCAT || 1463 vol->v_raid_level == G_RAID_VOLUME_RL_SINGLE) 1464 meta->type = NVIDIA_T_CONCAT; 1465 else if (vol->v_raid_level_qualifier == G_RAID_VOLUME_RLQ_R5LA) 1466 meta->type = NVIDIA_T_RAID5; 1467 else 1468 meta->type = NVIDIA_T_RAID5_SYM; 1469 meta->strip_sectors = vol->v_strip_size / vol->v_sectorsize; 1470 meta->strip_bytes = vol->v_strip_size; 1471 meta->strip_shift = ffs(meta->strip_sectors) - 1; 1472 meta->strip_mask = meta->strip_sectors - 1; 1473 meta->stripe_sectors = meta->strip_sectors * meta->orig_array_width; 1474 meta->stripe_bytes = meta->stripe_sectors * vol->v_sectorsize; 1475 meta->rebuild_lba = 0; 1476 meta->orig_type = meta->type; 1477 meta->orig_total_sectors = meta->total_sectors; 1478 meta->status = 0; 1479 1480 for (i = 0; i < vol->v_disks_count; i++) { 1481 sd = &vol->v_subdisks[i]; 1482 if ((sd->sd_state == G_RAID_SUBDISK_S_STALE || 1483 sd->sd_state == G_RAID_SUBDISK_S_RESYNC || 1484 vol->v_dirty) && 1485 meta->state != NVIDIA_S_REBUILD) 1486 meta->state = NVIDIA_S_SYNC; 1487 else if (sd->sd_state == G_RAID_SUBDISK_S_NEW || 1488 sd->sd_state == G_RAID_SUBDISK_S_REBUILD) 1489 meta->state = NVIDIA_S_REBUILD; 1490 } 1491 1492 /* We are done. Print meta data and store them to disks. */ 1493 if (mdi->mdio_meta != NULL) 1494 free(mdi->mdio_meta, M_MD_NVIDIA); 1495 mdi->mdio_meta = meta; 1496 spares = 0; 1497 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1498 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 1499 if (disk->d_state != G_RAID_DISK_S_ACTIVE && 1500 disk->d_state != G_RAID_DISK_S_SPARE) 1501 continue; 1502 if (pd->pd_meta != NULL) { 1503 free(pd->pd_meta, M_MD_NVIDIA); 1504 pd->pd_meta = NULL; 1505 } 1506 pd->pd_meta = nvidia_meta_copy(meta); 1507 if ((sd = TAILQ_FIRST(&disk->d_subdisks)) != NULL) { 1508 /* For RAID0+1 we need to translate order. */ 1509 pd->pd_meta->disk_number = 1510 nvidia_meta_translate_disk(meta, sd->sd_pos); 1511 if (sd->sd_state != G_RAID_SUBDISK_S_ACTIVE) { 1512 pd->pd_meta->disk_status = 0x100; 1513 pd->pd_meta->rebuild_lba = 1514 sd->sd_rebuild_pos / vol->v_sectorsize * 1515 meta->array_width; 1516 } 1517 } else 1518 pd->pd_meta->disk_number = meta->total_disks + spares++; 1519 G_RAID_DEBUG(1, "Writing NVIDIA metadata to %s", 1520 g_raid_get_diskname(disk)); 1521 g_raid_md_nvidia_print(pd->pd_meta); 1522 nvidia_meta_write(disk->d_consumer, pd->pd_meta); 1523 } 1524 return (0); 1525} 1526 1527static int 1528g_raid_md_fail_disk_nvidia(struct g_raid_md_object *md, 1529 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1530{ 1531 struct g_raid_softc *sc; 1532 struct g_raid_md_nvidia_perdisk *pd; 1533 struct g_raid_subdisk *sd; 1534 1535 sc = md->mdo_softc; 1536 pd = (struct g_raid_md_nvidia_perdisk *)tdisk->d_md_data; 1537 1538 /* We can't fail disk that is not a part of array now. */ 1539 if (pd->pd_disk_pos < 0) 1540 return (-1); 1541 1542 /* Erase metadata to prevent disks's later resurrection. */ 1543 if (tdisk->d_consumer) 1544 nvidia_meta_erase(tdisk->d_consumer); 1545 1546 /* Change states. */ 1547 g_raid_change_disk_state(tdisk, G_RAID_DISK_S_FAILED); 1548 TAILQ_FOREACH(sd, &tdisk->d_subdisks, sd_next) { 1549 g_raid_change_subdisk_state(sd, 1550 G_RAID_SUBDISK_S_FAILED); 1551 g_raid_event_send(sd, G_RAID_SUBDISK_E_FAILED, 1552 G_RAID_EVENT_SUBDISK); 1553 } 1554 1555 /* Write updated metadata to remaining disks. */ 1556 g_raid_md_write_nvidia(md, NULL, NULL, tdisk); 1557 1558 /* Check if anything left except placeholders. */ 1559 if (g_raid_ndisks(sc, -1) == 1560 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1561 g_raid_destroy_node(sc, 0); 1562 else 1563 g_raid_md_nvidia_refill(sc); 1564 return (0); 1565} 1566 1567static int 1568g_raid_md_free_disk_nvidia(struct g_raid_md_object *md, 1569 struct g_raid_disk *disk) 1570{ 1571 struct g_raid_md_nvidia_perdisk *pd; 1572 1573 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 1574 if (pd->pd_meta != NULL) { 1575 free(pd->pd_meta, M_MD_NVIDIA); 1576 pd->pd_meta = NULL; 1577 } 1578 free(pd, M_MD_NVIDIA); 1579 disk->d_md_data = NULL; 1580 return (0); 1581} 1582 1583static int 1584g_raid_md_free_nvidia(struct g_raid_md_object *md) 1585{ 1586 struct g_raid_md_nvidia_object *mdi; 1587 1588 mdi = (struct g_raid_md_nvidia_object *)md; 1589 if (!mdi->mdio_started) { 1590 mdi->mdio_started = 0; 1591 callout_stop(&mdi->mdio_start_co); 1592 G_RAID_DEBUG1(1, md->mdo_softc, 1593 "root_mount_rel %p", mdi->mdio_rootmount); 1594 root_mount_rel(mdi->mdio_rootmount); 1595 mdi->mdio_rootmount = NULL; 1596 } 1597 if (mdi->mdio_meta != NULL) { 1598 free(mdi->mdio_meta, M_MD_NVIDIA); 1599 mdi->mdio_meta = NULL; 1600 } 1601 return (0); 1602} 1603 1604G_RAID_MD_DECLARE(nvidia, "NVIDIA"); 1605