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sys/geom/raid/md_nvidia.c
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1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2011 Alexander Motin <mav@FreeBSD.org> 5 * Copyright (c) 2000 - 2008 Søren Schmidt <sos@FreeBSD.org> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 #include <sys/param.h> 34 #include <sys/bio.h> 35 #include <sys/endian.h> 36 #include <sys/kernel.h> 37 #include <sys/kobj.h> 38 #include <sys/limits.h> 39 #include <sys/lock.h> 40 #include <sys/malloc.h> 41 #include <sys/mutex.h> 42 #include <sys/systm.h> 43 #include <sys/taskqueue.h> 44 #include <geom/geom.h> 45 #include <geom/geom_dbg.h> 46 #include "geom/raid/g_raid.h" 47 #include "g_raid_md_if.h" 48 49 static MALLOC_DEFINE(M_MD_NVIDIA, "md_nvidia_data", "GEOM_RAID NVIDIA metadata"); 50 51 struct nvidia_raid_conf { 52 uint8_t nvidia_id[8]; 53 #define NVIDIA_MAGIC "NVIDIA " 54 55 uint32_t config_size; 56 uint32_t checksum; 57 uint16_t version; 58 uint8_t disk_number; 59 uint8_t dummy_0; 60 uint32_t total_sectors; 61 uint32_t sector_size; 62 uint8_t name[16]; 63 uint8_t revision[4]; 64 uint32_t disk_status; 65 66 uint32_t magic_0; 67 #define NVIDIA_MAGIC0 0x00640044 68 69 uint64_t volume_id[2]; 70 uint8_t state; 71 #define NVIDIA_S_IDLE 0 72 #define NVIDIA_S_INIT 2 73 #define NVIDIA_S_REBUILD 3 74 #define NVIDIA_S_UPGRADE 4 75 #define NVIDIA_S_SYNC 5 76 uint8_t array_width; 77 uint8_t total_disks; 78 uint8_t orig_array_width; 79 uint16_t type; 80 #define NVIDIA_T_RAID0 0x0080 81 #define NVIDIA_T_RAID1 0x0081 82 #define NVIDIA_T_RAID3 0x0083 83 #define NVIDIA_T_RAID5 0x0085 /* RLQ = 00/02? */ 84 #define NVIDIA_T_RAID5_SYM 0x0095 /* RLQ = 03 */ 85 #define NVIDIA_T_RAID10 0x008a 86 #define NVIDIA_T_RAID01 0x8180 87 #define NVIDIA_T_CONCAT 0x00ff 88 89 uint16_t dummy_3; 90 uint32_t strip_sectors; 91 uint32_t strip_bytes; 92 uint32_t strip_shift; 93 uint32_t strip_mask; 94 uint32_t stripe_sectors; 95 uint32_t stripe_bytes; 96 uint32_t rebuild_lba; 97 uint32_t orig_type; 98 uint32_t orig_total_sectors; 99 uint32_t status; 100 #define NVIDIA_S_BOOTABLE 0x00000001 101 #define NVIDIA_S_DEGRADED 0x00000002 102 103 uint32_t filler[98]; 104 } __packed; 105 106 struct g_raid_md_nvidia_perdisk { 107 struct nvidia_raid_conf *pd_meta; 108 int pd_disk_pos; 109 off_t pd_disk_size; 110 }; 111 112 struct g_raid_md_nvidia_object { 113 struct g_raid_md_object mdio_base; 114 uint64_t mdio_volume_id[2]; 115 struct nvidia_raid_conf *mdio_meta; 116 struct callout mdio_start_co; /* STARTING state timer. */ 117 int mdio_total_disks; 118 int mdio_disks_present; 119 int mdio_started; 120 int mdio_incomplete; 121 struct root_hold_token *mdio_rootmount; /* Root mount delay token. */ 122 }; 123 124 static g_raid_md_create_t g_raid_md_create_nvidia; 125 static g_raid_md_taste_t g_raid_md_taste_nvidia; 126 static g_raid_md_event_t g_raid_md_event_nvidia; 127 static g_raid_md_ctl_t g_raid_md_ctl_nvidia; 128 static g_raid_md_write_t g_raid_md_write_nvidia; 129 static g_raid_md_fail_disk_t g_raid_md_fail_disk_nvidia; 130 static g_raid_md_free_disk_t g_raid_md_free_disk_nvidia; 131 static g_raid_md_free_t g_raid_md_free_nvidia; 132 133 static kobj_method_t g_raid_md_nvidia_methods[] = { 134 KOBJMETHOD(g_raid_md_create, g_raid_md_create_nvidia), 135 KOBJMETHOD(g_raid_md_taste, g_raid_md_taste_nvidia), 136 KOBJMETHOD(g_raid_md_event, g_raid_md_event_nvidia), 137 KOBJMETHOD(g_raid_md_ctl, g_raid_md_ctl_nvidia), 138 KOBJMETHOD(g_raid_md_write, g_raid_md_write_nvidia), 139 KOBJMETHOD(g_raid_md_fail_disk, g_raid_md_fail_disk_nvidia), 140 KOBJMETHOD(g_raid_md_free_disk, g_raid_md_free_disk_nvidia), 141 KOBJMETHOD(g_raid_md_free, g_raid_md_free_nvidia), 142 { 0, 0 } 143 }; 144 145 static struct g_raid_md_class g_raid_md_nvidia_class = { 146 "NVIDIA", 147 g_raid_md_nvidia_methods, 148 sizeof(struct g_raid_md_nvidia_object), 149 .mdc_enable = 1, 150 .mdc_priority = 100 151 }; 152 153 static int NVIDIANodeID = 1; 154 155 static void 156 g_raid_md_nvidia_print(struct nvidia_raid_conf *meta) 157 { 158 159 if (g_raid_debug < 1) 160 return; 161 162 printf("********* ATA NVIDIA RAID Metadata *********\n"); 163 printf("nvidia_id <%.8s>\n", meta->nvidia_id); 164 printf("config_size %u\n", meta->config_size); 165 printf("checksum 0x%08x\n", meta->checksum); 166 printf("version 0x%04x\n", meta->version); 167 printf("disk_number %d\n", meta->disk_number); 168 printf("dummy_0 0x%02x\n", meta->dummy_0); 169 printf("total_sectors %u\n", meta->total_sectors); 170 printf("sector_size %u\n", meta->sector_size); 171 printf("name <%.16s>\n", meta->name); 172 printf("revision 0x%02x%02x%02x%02x\n", 173 meta->revision[0], meta->revision[1], 174 meta->revision[2], meta->revision[3]); 175 printf("disk_status 0x%08x\n", meta->disk_status); 176 printf("magic_0 0x%08x\n", meta->magic_0); 177 printf("volume_id 0x%016jx%016jx\n", 178 meta->volume_id[1], meta->volume_id[0]); 179 printf("state 0x%02x\n", meta->state); 180 printf("array_width %u\n", meta->array_width); 181 printf("total_disks %u\n", meta->total_disks); 182 printf("orig_array_width %u\n", meta->orig_array_width); 183 printf("type 0x%04x\n", meta->type); 184 printf("dummy_3 0x%04x\n", meta->dummy_3); 185 printf("strip_sectors %u\n", meta->strip_sectors); 186 printf("strip_bytes %u\n", meta->strip_bytes); 187 printf("strip_shift %u\n", meta->strip_shift); 188 printf("strip_mask 0x%08x\n", meta->strip_mask); 189 printf("stripe_sectors %u\n", meta->stripe_sectors); 190 printf("stripe_bytes %u\n", meta->stripe_bytes); 191 printf("rebuild_lba %u\n", meta->rebuild_lba); 192 printf("orig_type 0x%04x\n", meta->orig_type); 193 printf("orig_total_sectors %u\n", meta->orig_total_sectors); 194 printf("status 0x%08x\n", meta->status); 195 printf("=================================================\n"); 196 } 197 198 static struct nvidia_raid_conf * 199 nvidia_meta_copy(struct nvidia_raid_conf *meta) 200 { 201 struct nvidia_raid_conf *nmeta; 202 203 nmeta = malloc(sizeof(*meta), M_MD_NVIDIA, M_WAITOK); 204 memcpy(nmeta, meta, sizeof(*meta)); 205 return (nmeta); 206 } 207 208 static int 209 nvidia_meta_translate_disk(struct nvidia_raid_conf *meta, int md_disk_pos) 210 { 211 int disk_pos; 212 213 if (md_disk_pos >= 0 && meta->type == NVIDIA_T_RAID01) { 214 disk_pos = (md_disk_pos / meta->array_width) + 215 (md_disk_pos % meta->array_width) * meta->array_width; 216 } else 217 disk_pos = md_disk_pos; 218 return (disk_pos); 219 } 220 221 static void 222 nvidia_meta_get_name(struct nvidia_raid_conf *meta, char *buf) 223 { 224 int i; 225 226 strncpy(buf, meta->name, 16); 227 buf[16] = 0; 228 for (i = 15; i >= 0; i--) { 229 if (buf[i] > 0x20) 230 break; 231 buf[i] = 0; 232 } 233 } 234 235 static void 236 nvidia_meta_put_name(struct nvidia_raid_conf *meta, char *buf) 237 { 238 239 memset(meta->name, 0x20, 16); 240 memcpy(meta->name, buf, MIN(strlen(buf), 16)); 241 } 242 243 static struct nvidia_raid_conf * 244 nvidia_meta_read(struct g_consumer *cp) 245 { 246 struct g_provider *pp; 247 struct nvidia_raid_conf *meta; 248 char *buf; 249 int error, i; 250 uint32_t checksum, *ptr; 251 252 pp = cp->provider; 253 if (pp->sectorsize < sizeof(*meta)) 254 return (NULL); 255 /* Read the anchor sector. */ 256 buf = g_read_data(cp, 257 pp->mediasize - 2 * pp->sectorsize, pp->sectorsize, &error); 258 if (buf == NULL) { 259 G_RAID_DEBUG(1, "Cannot read metadata from %s (error=%d).", 260 pp->name, error); 261 return (NULL); 262 } 263 meta = (struct nvidia_raid_conf *)buf; 264 265 /* Check if this is an NVIDIA RAID struct */ 266 if (strncmp(meta->nvidia_id, NVIDIA_MAGIC, strlen(NVIDIA_MAGIC))) { 267 G_RAID_DEBUG(1, "NVIDIA signature check failed on %s", pp->name); 268 g_free(buf); 269 return (NULL); 270 } 271 if (meta->config_size > 128 || 272 meta->config_size < 30) { 273 G_RAID_DEBUG(1, "NVIDIA metadata size looks wrong: %d", 274 meta->config_size); 275 g_free(buf); 276 return (NULL); 277 } 278 meta = malloc(sizeof(*meta), M_MD_NVIDIA, M_WAITOK); 279 memcpy(meta, buf, min(sizeof(*meta), pp->sectorsize)); 280 g_free(buf); 281 282 /* Check metadata checksum. */ 283 for (checksum = 0, ptr = (uint32_t *)meta, 284 i = 0; i < meta->config_size; i++) 285 checksum += *ptr++; 286 if (checksum != 0) { 287 G_RAID_DEBUG(1, "NVIDIA checksum check failed on %s", pp->name); 288 free(meta, M_MD_NVIDIA); 289 return (NULL); 290 } 291 292 /* Check volume state. */ 293 if (meta->state != NVIDIA_S_IDLE && meta->state != NVIDIA_S_INIT && 294 meta->state != NVIDIA_S_REBUILD && meta->state != NVIDIA_S_SYNC) { 295 G_RAID_DEBUG(1, "NVIDIA unknown state on %s (0x%02x)", 296 pp->name, meta->state); 297 free(meta, M_MD_NVIDIA); 298 return (NULL); 299 } 300 301 /* Check raid type. */ 302 if (meta->type != NVIDIA_T_RAID0 && meta->type != NVIDIA_T_RAID1 && 303 meta->type != NVIDIA_T_RAID3 && meta->type != NVIDIA_T_RAID5 && 304 meta->type != NVIDIA_T_RAID5_SYM && 305 meta->type != NVIDIA_T_RAID01 && meta->type != NVIDIA_T_CONCAT) { 306 G_RAID_DEBUG(1, "NVIDIA unknown RAID level on %s (0x%02x)", 307 pp->name, meta->type); 308 free(meta, M_MD_NVIDIA); 309 return (NULL); 310 } 311 312 return (meta); 313 } 314 315 static int 316 nvidia_meta_write(struct g_consumer *cp, struct nvidia_raid_conf *meta) 317 { 318 struct g_provider *pp; 319 char *buf; 320 int error, i; 321 uint32_t checksum, *ptr; 322 323 pp = cp->provider; 324 325 /* Recalculate checksum for case if metadata were changed. */ 326 meta->checksum = 0; 327 for (checksum = 0, ptr = (uint32_t *)meta, 328 i = 0; i < meta->config_size; i++) 329 checksum += *ptr++; 330 meta->checksum -= checksum; 331 332 /* Create and fill buffer. */ 333 buf = malloc(pp->sectorsize, M_MD_NVIDIA, M_WAITOK | M_ZERO); 334 memcpy(buf, meta, sizeof(*meta)); 335 336 /* Write metadata. */ 337 error = g_write_data(cp, 338 pp->mediasize - 2 * pp->sectorsize, buf, pp->sectorsize); 339 if (error != 0) { 340 G_RAID_DEBUG(1, "Cannot write metadata to %s (error=%d).", 341 pp->name, error); 342 } 343 344 free(buf, M_MD_NVIDIA); 345 return (error); 346 } 347 348 static int 349 nvidia_meta_erase(struct g_consumer *cp) 350 { 351 struct g_provider *pp; 352 char *buf; 353 int error; 354 355 pp = cp->provider; 356 buf = malloc(pp->sectorsize, M_MD_NVIDIA, M_WAITOK | M_ZERO); 357 error = g_write_data(cp, 358 pp->mediasize - 2 * pp->sectorsize, buf, pp->sectorsize); 359 if (error != 0) { 360 G_RAID_DEBUG(1, "Cannot erase metadata on %s (error=%d).", 361 pp->name, error); 362 } 363 free(buf, M_MD_NVIDIA); 364 return (error); 365 } 366 367 static struct g_raid_disk * 368 g_raid_md_nvidia_get_disk(struct g_raid_softc *sc, int id) 369 { 370 struct g_raid_disk *disk; 371 struct g_raid_md_nvidia_perdisk *pd; 372 373 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 374 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 375 if (pd->pd_disk_pos == id) 376 break; 377 } 378 return (disk); 379 } 380 381 static int 382 g_raid_md_nvidia_supported(int level, int qual, int disks, int force) 383 { 384 385 switch (level) { 386 case G_RAID_VOLUME_RL_RAID0: 387 if (disks < 1) 388 return (0); 389 if (!force && (disks < 2 || disks > 6)) 390 return (0); 391 break; 392 case G_RAID_VOLUME_RL_RAID1: 393 if (disks < 1) 394 return (0); 395 if (!force && (disks != 2)) 396 return (0); 397 break; 398 case G_RAID_VOLUME_RL_RAID1E: 399 if (disks < 2) 400 return (0); 401 if (disks % 2 != 0) 402 return (0); 403 if (!force && (disks < 4)) 404 return (0); 405 break; 406 case G_RAID_VOLUME_RL_SINGLE: 407 if (disks != 1) 408 return (0); 409 break; 410 case G_RAID_VOLUME_RL_CONCAT: 411 if (disks < 2) 412 return (0); 413 break; 414 case G_RAID_VOLUME_RL_RAID5: 415 if (disks < 3) 416 return (0); 417 if (qual != G_RAID_VOLUME_RLQ_R5LA && 418 qual != G_RAID_VOLUME_RLQ_R5LS) 419 return (0); 420 break; 421 default: 422 return (0); 423 } 424 if (level != G_RAID_VOLUME_RL_RAID5 && qual != G_RAID_VOLUME_RLQ_NONE) 425 return (0); 426 return (1); 427 } 428 429 static int 430 g_raid_md_nvidia_start_disk(struct g_raid_disk *disk) 431 { 432 struct g_raid_softc *sc; 433 struct g_raid_subdisk *sd, *tmpsd; 434 struct g_raid_disk *olddisk, *tmpdisk; 435 struct g_raid_md_object *md; 436 struct g_raid_md_nvidia_object *mdi; 437 struct g_raid_md_nvidia_perdisk *pd, *oldpd; 438 struct nvidia_raid_conf *meta; 439 int disk_pos, resurrection = 0; 440 441 sc = disk->d_softc; 442 md = sc->sc_md; 443 mdi = (struct g_raid_md_nvidia_object *)md; 444 meta = mdi->mdio_meta; 445 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 446 olddisk = NULL; 447 448 /* Find disk position in metadata by its serial. */ 449 if (pd->pd_meta != NULL) { 450 disk_pos = pd->pd_meta->disk_number; 451 if (disk_pos >= meta->total_disks || mdi->mdio_started) 452 disk_pos = -3; 453 } else 454 disk_pos = -3; 455 /* For RAID0+1 we need to translate order. */ 456 disk_pos = nvidia_meta_translate_disk(meta, disk_pos); 457 if (disk_pos < 0) { 458 G_RAID_DEBUG1(1, sc, "Unknown, probably new or stale disk"); 459 /* If we are in the start process, that's all for now. */ 460 if (!mdi->mdio_started) 461 goto nofit; 462 /* 463 * If we have already started - try to get use of the disk. 464 * Try to replace OFFLINE disks first, then FAILED. 465 */ 466 TAILQ_FOREACH(tmpdisk, &sc->sc_disks, d_next) { 467 if (tmpdisk->d_state != G_RAID_DISK_S_OFFLINE && 468 tmpdisk->d_state != G_RAID_DISK_S_FAILED) 469 continue; 470 /* Make sure this disk is big enough. */ 471 TAILQ_FOREACH(sd, &tmpdisk->d_subdisks, sd_next) { 472 if (sd->sd_offset + sd->sd_size + 2 * 512 > 473 pd->pd_disk_size) { 474 G_RAID_DEBUG1(1, sc, 475 "Disk too small (%ju < %ju)", 476 pd->pd_disk_size, 477 sd->sd_offset + sd->sd_size + 512); 478 break; 479 } 480 } 481 if (sd != NULL) 482 continue; 483 if (tmpdisk->d_state == G_RAID_DISK_S_OFFLINE) { 484 olddisk = tmpdisk; 485 break; 486 } else if (olddisk == NULL) 487 olddisk = tmpdisk; 488 } 489 if (olddisk == NULL) { 490 nofit: 491 g_raid_change_disk_state(disk, G_RAID_DISK_S_SPARE); 492 return (1); 493 } 494 oldpd = (struct g_raid_md_nvidia_perdisk *)olddisk->d_md_data; 495 disk_pos = oldpd->pd_disk_pos; 496 resurrection = 1; 497 } 498 499 if (olddisk == NULL) { 500 /* Find placeholder by position. */ 501 olddisk = g_raid_md_nvidia_get_disk(sc, disk_pos); 502 if (olddisk == NULL) 503 panic("No disk at position %d!", disk_pos); 504 if (olddisk->d_state != G_RAID_DISK_S_OFFLINE) { 505 G_RAID_DEBUG1(1, sc, "More than one disk for pos %d", 506 disk_pos); 507 g_raid_change_disk_state(disk, G_RAID_DISK_S_STALE); 508 return (0); 509 } 510 oldpd = (struct g_raid_md_nvidia_perdisk *)olddisk->d_md_data; 511 } 512 513 /* Replace failed disk or placeholder with new disk. */ 514 TAILQ_FOREACH_SAFE(sd, &olddisk->d_subdisks, sd_next, tmpsd) { 515 TAILQ_REMOVE(&olddisk->d_subdisks, sd, sd_next); 516 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 517 sd->sd_disk = disk; 518 } 519 oldpd->pd_disk_pos = -2; 520 pd->pd_disk_pos = disk_pos; 521 522 /* If it was placeholder -- destroy it. */ 523 if (olddisk->d_state == G_RAID_DISK_S_OFFLINE) { 524 g_raid_destroy_disk(olddisk); 525 } else { 526 /* Otherwise, make it STALE_FAILED. */ 527 g_raid_change_disk_state(olddisk, G_RAID_DISK_S_STALE_FAILED); 528 } 529 530 /* Welcome the new disk. */ 531 if (resurrection) 532 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE); 533 else// if (pd->pd_meta->disk_status == NVIDIA_S_CURRENT || 534 //pd->pd_meta->disk_status == NVIDIA_S_REBUILD) 535 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE); 536 // else 537 // g_raid_change_disk_state(disk, G_RAID_DISK_S_FAILED); 538 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 539 /* 540 * Different disks may have different sizes, 541 * in concat mode. Update from real disk size. 542 */ 543 if (meta->type == NVIDIA_T_CONCAT) 544 sd->sd_size = pd->pd_disk_size - 0x800 * 512; 545 546 if (resurrection) { 547 /* New or ex-spare disk. */ 548 g_raid_change_subdisk_state(sd, 549 G_RAID_SUBDISK_S_NEW); 550 } else if (meta->state == NVIDIA_S_REBUILD && 551 (pd->pd_meta->disk_status & 0x100)) { 552 /* Rebuilding disk. */ 553 g_raid_change_subdisk_state(sd, 554 G_RAID_SUBDISK_S_REBUILD); 555 sd->sd_rebuild_pos = (off_t)pd->pd_meta->rebuild_lba / 556 meta->array_width * pd->pd_meta->sector_size; 557 } else if (meta->state == NVIDIA_S_SYNC) { 558 /* Resyncing/dirty disk. */ 559 g_raid_change_subdisk_state(sd, 560 G_RAID_SUBDISK_S_RESYNC); 561 sd->sd_rebuild_pos = (off_t)pd->pd_meta->rebuild_lba / 562 meta->array_width * pd->pd_meta->sector_size; 563 } else { 564 /* Up to date disk. */ 565 g_raid_change_subdisk_state(sd, 566 G_RAID_SUBDISK_S_ACTIVE); 567 } 568 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 569 G_RAID_EVENT_SUBDISK); 570 } 571 572 /* Update status of our need for spare. */ 573 if (mdi->mdio_started) { 574 mdi->mdio_incomplete = 575 (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < 576 mdi->mdio_total_disks); 577 } 578 579 return (resurrection); 580 } 581 582 static void 583 g_disk_md_nvidia_retaste(void *arg, int pending) 584 { 585 586 G_RAID_DEBUG(1, "Array is not complete, trying to retaste."); 587 g_retaste(&g_raid_class); 588 free(arg, M_MD_NVIDIA); 589 } 590 591 static void 592 g_raid_md_nvidia_refill(struct g_raid_softc *sc) 593 { 594 struct g_raid_md_object *md; 595 struct g_raid_md_nvidia_object *mdi; 596 struct g_raid_disk *disk; 597 struct task *task; 598 int update, na; 599 600 md = sc->sc_md; 601 mdi = (struct g_raid_md_nvidia_object *)md; 602 update = 0; 603 do { 604 /* Make sure we miss anything. */ 605 na = g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE); 606 if (na == mdi->mdio_total_disks) 607 break; 608 609 G_RAID_DEBUG1(1, md->mdo_softc, 610 "Array is not complete (%d of %d), " 611 "trying to refill.", na, mdi->mdio_total_disks); 612 613 /* Try to get use some of STALE disks. */ 614 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 615 if (disk->d_state == G_RAID_DISK_S_STALE) { 616 update += g_raid_md_nvidia_start_disk(disk); 617 if (disk->d_state == G_RAID_DISK_S_ACTIVE) 618 break; 619 } 620 } 621 if (disk != NULL) 622 continue; 623 624 /* Try to get use some of SPARE disks. */ 625 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 626 if (disk->d_state == G_RAID_DISK_S_SPARE) { 627 update += g_raid_md_nvidia_start_disk(disk); 628 if (disk->d_state == G_RAID_DISK_S_ACTIVE) 629 break; 630 } 631 } 632 } while (disk != NULL); 633 634 /* Write new metadata if we changed something. */ 635 if (update) 636 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 637 638 /* Update status of our need for spare. */ 639 mdi->mdio_incomplete = (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < 640 mdi->mdio_total_disks); 641 642 /* Request retaste hoping to find spare. */ 643 if (mdi->mdio_incomplete) { 644 task = malloc(sizeof(struct task), 645 M_MD_NVIDIA, M_WAITOK | M_ZERO); 646 TASK_INIT(task, 0, g_disk_md_nvidia_retaste, task); 647 taskqueue_enqueue(taskqueue_swi, task); 648 } 649 } 650 651 static void 652 g_raid_md_nvidia_start(struct g_raid_softc *sc) 653 { 654 struct g_raid_md_object *md; 655 struct g_raid_md_nvidia_object *mdi; 656 struct g_raid_md_nvidia_perdisk *pd; 657 struct nvidia_raid_conf *meta; 658 struct g_raid_volume *vol; 659 struct g_raid_subdisk *sd; 660 struct g_raid_disk *disk; 661 off_t size; 662 int j, disk_pos; 663 char buf[17]; 664 665 md = sc->sc_md; 666 mdi = (struct g_raid_md_nvidia_object *)md; 667 meta = mdi->mdio_meta; 668 669 /* Create volumes and subdisks. */ 670 nvidia_meta_get_name(meta, buf); 671 vol = g_raid_create_volume(sc, buf, -1); 672 vol->v_mediasize = (off_t)meta->total_sectors * 512; 673 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_NONE; 674 if (meta->type == NVIDIA_T_RAID0) { 675 vol->v_raid_level = G_RAID_VOLUME_RL_RAID0; 676 size = vol->v_mediasize / mdi->mdio_total_disks; 677 } else if (meta->type == NVIDIA_T_RAID1) { 678 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1; 679 size = vol->v_mediasize; 680 } else if (meta->type == NVIDIA_T_RAID01) { 681 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1E; 682 size = vol->v_mediasize / (mdi->mdio_total_disks / 2); 683 } else if (meta->type == NVIDIA_T_CONCAT) { 684 if (mdi->mdio_total_disks == 1) 685 vol->v_raid_level = G_RAID_VOLUME_RL_SINGLE; 686 else 687 vol->v_raid_level = G_RAID_VOLUME_RL_CONCAT; 688 size = 0; 689 } else if (meta->type == NVIDIA_T_RAID5) { 690 vol->v_raid_level = G_RAID_VOLUME_RL_RAID5; 691 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_R5LA; 692 size = vol->v_mediasize / (mdi->mdio_total_disks - 1); 693 } else if (meta->type == NVIDIA_T_RAID5_SYM) { 694 vol->v_raid_level = G_RAID_VOLUME_RL_RAID5; 695 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_R5LS; 696 size = vol->v_mediasize / (mdi->mdio_total_disks - 1); 697 } else { 698 vol->v_raid_level = G_RAID_VOLUME_RL_UNKNOWN; 699 size = 0; 700 } 701 vol->v_strip_size = meta->strip_sectors * 512; //ZZZ 702 vol->v_disks_count = mdi->mdio_total_disks; 703 vol->v_sectorsize = 512; //ZZZ 704 for (j = 0; j < vol->v_disks_count; j++) { 705 sd = &vol->v_subdisks[j]; 706 sd->sd_offset = 0; 707 sd->sd_size = size; 708 } 709 g_raid_start_volume(vol); 710 711 /* Create disk placeholders to store data for later writing. */ 712 for (disk_pos = 0; disk_pos < mdi->mdio_total_disks; disk_pos++) { 713 pd = malloc(sizeof(*pd), M_MD_NVIDIA, M_WAITOK | M_ZERO); 714 pd->pd_disk_pos = disk_pos; 715 disk = g_raid_create_disk(sc); 716 disk->d_md_data = (void *)pd; 717 disk->d_state = G_RAID_DISK_S_OFFLINE; 718 sd = &vol->v_subdisks[disk_pos]; 719 sd->sd_disk = disk; 720 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 721 } 722 723 /* Make all disks found till the moment take their places. */ 724 do { 725 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 726 if (disk->d_state == G_RAID_DISK_S_NONE) { 727 g_raid_md_nvidia_start_disk(disk); 728 break; 729 } 730 } 731 } while (disk != NULL); 732 733 mdi->mdio_started = 1; 734 G_RAID_DEBUG1(0, sc, "Array started."); 735 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 736 737 /* Pickup any STALE/SPARE disks to refill array if needed. */ 738 g_raid_md_nvidia_refill(sc); 739 740 g_raid_event_send(vol, G_RAID_VOLUME_E_START, G_RAID_EVENT_VOLUME); 741 742 callout_stop(&mdi->mdio_start_co); 743 G_RAID_DEBUG1(1, sc, "root_mount_rel %p", mdi->mdio_rootmount); 744 root_mount_rel(mdi->mdio_rootmount); 745 mdi->mdio_rootmount = NULL; 746 } 747 748 static void 749 g_raid_md_nvidia_new_disk(struct g_raid_disk *disk) 750 { 751 struct g_raid_softc *sc; 752 struct g_raid_md_object *md; 753 struct g_raid_md_nvidia_object *mdi; 754 struct nvidia_raid_conf *pdmeta; 755 struct g_raid_md_nvidia_perdisk *pd; 756 757 sc = disk->d_softc; 758 md = sc->sc_md; 759 mdi = (struct g_raid_md_nvidia_object *)md; 760 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 761 pdmeta = pd->pd_meta; 762 763 if (mdi->mdio_started) { 764 if (g_raid_md_nvidia_start_disk(disk)) 765 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 766 } else { 767 if (mdi->mdio_meta == NULL || 768 mdi->mdio_meta->disk_number >= mdi->mdio_meta->total_disks) { 769 G_RAID_DEBUG1(1, sc, "Newer disk"); 770 if (mdi->mdio_meta != NULL) 771 free(mdi->mdio_meta, M_MD_NVIDIA); 772 mdi->mdio_meta = nvidia_meta_copy(pdmeta); 773 mdi->mdio_total_disks = pdmeta->total_disks; 774 mdi->mdio_disks_present = 1; 775 } else if (pdmeta->disk_number < mdi->mdio_meta->total_disks) { 776 mdi->mdio_disks_present++; 777 G_RAID_DEBUG1(1, sc, "Matching disk (%d of %d up)", 778 mdi->mdio_disks_present, 779 mdi->mdio_total_disks); 780 } else 781 G_RAID_DEBUG1(1, sc, "Spare disk"); 782 783 /* If we collected all needed disks - start array. */ 784 if (mdi->mdio_disks_present == mdi->mdio_total_disks) 785 g_raid_md_nvidia_start(sc); 786 } 787 } 788 789 static void 790 g_raid_nvidia_go(void *arg) 791 { 792 struct g_raid_softc *sc; 793 struct g_raid_md_object *md; 794 struct g_raid_md_nvidia_object *mdi; 795 796 sc = arg; 797 md = sc->sc_md; 798 mdi = (struct g_raid_md_nvidia_object *)md; 799 if (!mdi->mdio_started) { 800 G_RAID_DEBUG1(0, sc, "Force array start due to timeout."); 801 g_raid_event_send(sc, G_RAID_NODE_E_START, 0); 802 } 803 } 804 805 static int 806 g_raid_md_create_nvidia(struct g_raid_md_object *md, struct g_class *mp, 807 struct g_geom **gp) 808 { 809 struct g_raid_softc *sc; 810 struct g_raid_md_nvidia_object *mdi; 811 char name[32]; 812 813 mdi = (struct g_raid_md_nvidia_object *)md; 814 arc4rand(&mdi->mdio_volume_id, 16, 0); 815 snprintf(name, sizeof(name), "NVIDIA-%d", 816 atomic_fetchadd_int(&NVIDIANodeID, 1)); 817 sc = g_raid_create_node(mp, name, md); 818 if (sc == NULL) 819 return (G_RAID_MD_TASTE_FAIL); 820 md->mdo_softc = sc; 821 *gp = sc->sc_geom; 822 return (G_RAID_MD_TASTE_NEW); 823 } 824 825 static int 826 g_raid_md_taste_nvidia(struct g_raid_md_object *md, struct g_class *mp, 827 struct g_consumer *cp, struct g_geom **gp) 828 { 829 struct g_consumer *rcp; 830 struct g_provider *pp; 831 struct g_raid_md_nvidia_object *mdi, *mdi1; 832 struct g_raid_softc *sc; 833 struct g_raid_disk *disk; 834 struct nvidia_raid_conf *meta; 835 struct g_raid_md_nvidia_perdisk *pd; 836 struct g_geom *geom; 837 int result, spare, len; 838 char name[32]; 839 uint16_t vendor; 840 841 G_RAID_DEBUG(1, "Tasting NVIDIA on %s", cp->provider->name); 842 mdi = (struct g_raid_md_nvidia_object *)md; 843 pp = cp->provider; 844 845 /* Read metadata from device. */ 846 meta = NULL; 847 g_topology_unlock(); 848 vendor = 0xffff; 849 len = sizeof(vendor); 850 if (pp->geom->rank == 1) 851 g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor); 852 meta = nvidia_meta_read(cp); 853 g_topology_lock(); 854 if (meta == NULL) { 855 if (g_raid_aggressive_spare) { 856 if (vendor == 0x10de) { 857 G_RAID_DEBUG(1, 858 "No NVIDIA metadata, forcing spare."); 859 spare = 2; 860 goto search; 861 } else { 862 G_RAID_DEBUG(1, 863 "NVIDIA vendor mismatch 0x%04x != 0x10de", 864 vendor); 865 } 866 } 867 return (G_RAID_MD_TASTE_FAIL); 868 } 869 870 /* Metadata valid. Print it. */ 871 g_raid_md_nvidia_print(meta); 872 G_RAID_DEBUG(1, "NVIDIA disk position %d", meta->disk_number); 873 spare = 0;//(meta->type == NVIDIA_T_SPARE) ? 1 : 0; 874 875 search: 876 /* Search for matching node. */ 877 sc = NULL; 878 mdi1 = NULL; 879 LIST_FOREACH(geom, &mp->geom, geom) { 880 sc = geom->softc; 881 if (sc == NULL) 882 continue; 883 if (sc->sc_stopping != 0) 884 continue; 885 if (sc->sc_md->mdo_class != md->mdo_class) 886 continue; 887 mdi1 = (struct g_raid_md_nvidia_object *)sc->sc_md; 888 if (spare) { 889 if (mdi1->mdio_incomplete) 890 break; 891 } else { 892 if (memcmp(&mdi1->mdio_volume_id, 893 &meta->volume_id, 16) == 0) 894 break; 895 } 896 } 897 898 /* Found matching node. */ 899 if (geom != NULL) { 900 G_RAID_DEBUG(1, "Found matching array %s", sc->sc_name); 901 result = G_RAID_MD_TASTE_EXISTING; 902 903 } else if (spare) { /* Not found needy node -- left for later. */ 904 G_RAID_DEBUG(1, "Spare is not needed at this time"); 905 goto fail1; 906 907 } else { /* Not found matching node -- create one. */ 908 result = G_RAID_MD_TASTE_NEW; 909 memcpy(&mdi->mdio_volume_id, &meta->volume_id, 16); 910 snprintf(name, sizeof(name), "NVIDIA-%d", 911 atomic_fetchadd_int(&NVIDIANodeID, 1)); 912 sc = g_raid_create_node(mp, name, md); 913 md->mdo_softc = sc; 914 geom = sc->sc_geom; 915 callout_init(&mdi->mdio_start_co, 1); 916 callout_reset(&mdi->mdio_start_co, g_raid_start_timeout * hz, 917 g_raid_nvidia_go, sc); 918 mdi->mdio_rootmount = root_mount_hold("GRAID-NVIDIA"); 919 G_RAID_DEBUG1(1, sc, "root_mount_hold %p", mdi->mdio_rootmount); 920 } 921 922 /* There is no return after this point, so we close passed consumer. */ 923 g_access(cp, -1, 0, 0); 924 925 rcp = g_new_consumer(geom); 926 rcp->flags |= G_CF_DIRECT_RECEIVE; 927 g_attach(rcp, pp); 928 if (g_access(rcp, 1, 1, 1) != 0) 929 ; //goto fail1; 930 931 g_topology_unlock(); 932 sx_xlock(&sc->sc_lock); 933 934 pd = malloc(sizeof(*pd), M_MD_NVIDIA, M_WAITOK | M_ZERO); 935 pd->pd_meta = meta; 936 if (spare == 2) { 937 pd->pd_disk_pos = -3; 938 } else { 939 pd->pd_disk_pos = -1; 940 } 941 pd->pd_disk_size = pp->mediasize; 942 disk = g_raid_create_disk(sc); 943 disk->d_md_data = (void *)pd; 944 disk->d_consumer = rcp; 945 rcp->private = disk; 946 947 g_raid_get_disk_info(disk); 948 949 g_raid_md_nvidia_new_disk(disk); 950 951 sx_xunlock(&sc->sc_lock); 952 g_topology_lock(); 953 *gp = geom; 954 return (result); 955 fail1: 956 free(meta, M_MD_NVIDIA); 957 return (G_RAID_MD_TASTE_FAIL); 958 } 959 960 static int 961 g_raid_md_event_nvidia(struct g_raid_md_object *md, 962 struct g_raid_disk *disk, u_int event) 963 { 964 struct g_raid_softc *sc; 965 struct g_raid_subdisk *sd; 966 struct g_raid_md_nvidia_object *mdi; 967 struct g_raid_md_nvidia_perdisk *pd; 968 969 sc = md->mdo_softc; 970 mdi = (struct g_raid_md_nvidia_object *)md; 971 if (disk == NULL) { 972 switch (event) { 973 case G_RAID_NODE_E_START: 974 if (!mdi->mdio_started) { 975 /* Bump volume ID to drop missing disks. */ 976 arc4rand(&mdi->mdio_volume_id, 16, 0); 977 g_raid_md_nvidia_start(sc); 978 } 979 return (0); 980 } 981 return (-1); 982 } 983 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 984 switch (event) { 985 case G_RAID_DISK_E_DISCONNECTED: 986 /* If disk was assigned, just update statuses. */ 987 if (pd->pd_disk_pos >= 0) { 988 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 989 if (disk->d_consumer) { 990 g_raid_kill_consumer(sc, disk->d_consumer); 991 disk->d_consumer = NULL; 992 } 993 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 994 g_raid_change_subdisk_state(sd, 995 G_RAID_SUBDISK_S_NONE); 996 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED, 997 G_RAID_EVENT_SUBDISK); 998 } 999 } else { 1000 /* Otherwise -- delete. */ 1001 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 1002 g_raid_destroy_disk(disk); 1003 } 1004 1005 if (mdi->mdio_started) { 1006 /* Bump volume ID to prevent disk resurrection. */ 1007 if (pd->pd_disk_pos >= 0) 1008 arc4rand(&mdi->mdio_volume_id, 16, 0); 1009 1010 /* Write updated metadata to all disks. */ 1011 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 1012 } 1013 1014 /* Check if anything left except placeholders. */ 1015 if (g_raid_ndisks(sc, -1) == 1016 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1017 g_raid_destroy_node(sc, 0); 1018 else 1019 g_raid_md_nvidia_refill(sc); 1020 return (0); 1021 } 1022 return (-2); 1023 } 1024 1025 static int 1026 g_raid_md_ctl_nvidia(struct g_raid_md_object *md, 1027 struct gctl_req *req) 1028 { 1029 struct g_raid_softc *sc; 1030 struct g_raid_volume *vol; 1031 struct g_raid_subdisk *sd; 1032 struct g_raid_disk *disk; 1033 struct g_raid_md_nvidia_object *mdi; 1034 struct g_raid_md_nvidia_perdisk *pd; 1035 struct g_consumer *cp; 1036 struct g_provider *pp; 1037 char arg[16]; 1038 const char *verb, *volname, *levelname, *diskname; 1039 int *nargs, *force; 1040 off_t size, sectorsize, strip, volsize; 1041 intmax_t *sizearg, *striparg; 1042 int numdisks, i, len, level, qual, update; 1043 int error; 1044 1045 sc = md->mdo_softc; 1046 mdi = (struct g_raid_md_nvidia_object *)md; 1047 verb = gctl_get_param(req, "verb", NULL); 1048 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 1049 error = 0; 1050 if (strcmp(verb, "label") == 0) { 1051 if (*nargs < 4) { 1052 gctl_error(req, "Invalid number of arguments."); 1053 return (-1); 1054 } 1055 volname = gctl_get_asciiparam(req, "arg1"); 1056 if (volname == NULL) { 1057 gctl_error(req, "No volume name."); 1058 return (-2); 1059 } 1060 levelname = gctl_get_asciiparam(req, "arg2"); 1061 if (levelname == NULL) { 1062 gctl_error(req, "No RAID level."); 1063 return (-3); 1064 } 1065 if (strcasecmp(levelname, "RAID5") == 0) 1066 levelname = "RAID5-LS"; 1067 if (g_raid_volume_str2level(levelname, &level, &qual)) { 1068 gctl_error(req, "Unknown RAID level '%s'.", levelname); 1069 return (-4); 1070 } 1071 numdisks = *nargs - 3; 1072 force = gctl_get_paraml(req, "force", sizeof(*force)); 1073 if (!g_raid_md_nvidia_supported(level, qual, numdisks, 1074 force ? *force : 0)) { 1075 gctl_error(req, "Unsupported RAID level " 1076 "(0x%02x/0x%02x), or number of disks (%d).", 1077 level, qual, numdisks); 1078 return (-5); 1079 } 1080 1081 /* Search for disks, connect them and probe. */ 1082 size = 0x7fffffffffffffffllu; 1083 sectorsize = 0; 1084 for (i = 0; i < numdisks; i++) { 1085 snprintf(arg, sizeof(arg), "arg%d", i + 3); 1086 diskname = gctl_get_asciiparam(req, arg); 1087 if (diskname == NULL) { 1088 gctl_error(req, "No disk name (%s).", arg); 1089 error = -6; 1090 break; 1091 } 1092 if (strcmp(diskname, "NONE") == 0) { 1093 cp = NULL; 1094 pp = NULL; 1095 } else { 1096 g_topology_lock(); 1097 cp = g_raid_open_consumer(sc, diskname); 1098 if (cp == NULL) { 1099 gctl_error(req, "Can't open '%s'.", 1100 diskname); 1101 g_topology_unlock(); 1102 error = -7; 1103 break; 1104 } 1105 pp = cp->provider; 1106 } 1107 pd = malloc(sizeof(*pd), M_MD_NVIDIA, M_WAITOK | M_ZERO); 1108 pd->pd_disk_pos = i; 1109 disk = g_raid_create_disk(sc); 1110 disk->d_md_data = (void *)pd; 1111 disk->d_consumer = cp; 1112 if (cp == NULL) 1113 continue; 1114 cp->private = disk; 1115 g_topology_unlock(); 1116 1117 g_raid_get_disk_info(disk); 1118 1119 pd->pd_disk_size = pp->mediasize; 1120 if (size > pp->mediasize) 1121 size = pp->mediasize; 1122 if (sectorsize < pp->sectorsize) 1123 sectorsize = pp->sectorsize; 1124 } 1125 if (error != 0) 1126 return (error); 1127 1128 if (sectorsize <= 0) { 1129 gctl_error(req, "Can't get sector size."); 1130 return (-8); 1131 } 1132 1133 /* Reserve space for metadata. */ 1134 size -= 2 * sectorsize; 1135 1136 /* Handle size argument. */ 1137 len = sizeof(*sizearg); 1138 sizearg = gctl_get_param(req, "size", &len); 1139 if (sizearg != NULL && len == sizeof(*sizearg) && 1140 *sizearg > 0) { 1141 if (*sizearg > size) { 1142 gctl_error(req, "Size too big %lld > %lld.", 1143 (long long)*sizearg, (long long)size); 1144 return (-9); 1145 } 1146 size = *sizearg; 1147 } 1148 1149 /* Handle strip argument. */ 1150 strip = 131072; 1151 len = sizeof(*striparg); 1152 striparg = gctl_get_param(req, "strip", &len); 1153 if (striparg != NULL && len == sizeof(*striparg) && 1154 *striparg > 0) { 1155 if (*striparg < sectorsize) { 1156 gctl_error(req, "Strip size too small."); 1157 return (-10); 1158 } 1159 if (*striparg % sectorsize != 0) { 1160 gctl_error(req, "Incorrect strip size."); 1161 return (-11); 1162 } 1163 if (strip > 65535 * sectorsize) { 1164 gctl_error(req, "Strip size too big."); 1165 return (-12); 1166 } 1167 strip = *striparg; 1168 } 1169 1170 /* Round size down to strip or sector. */ 1171 if (level == G_RAID_VOLUME_RL_RAID1) 1172 size -= (size % sectorsize); 1173 else if (level == G_RAID_VOLUME_RL_RAID1E && 1174 (numdisks & 1) != 0) 1175 size -= (size % (2 * strip)); 1176 else 1177 size -= (size % strip); 1178 if (size <= 0) { 1179 gctl_error(req, "Size too small."); 1180 return (-13); 1181 } 1182 1183 if (level == G_RAID_VOLUME_RL_RAID0 || 1184 level == G_RAID_VOLUME_RL_CONCAT || 1185 level == G_RAID_VOLUME_RL_SINGLE) 1186 volsize = size * numdisks; 1187 else if (level == G_RAID_VOLUME_RL_RAID1) 1188 volsize = size; 1189 else if (level == G_RAID_VOLUME_RL_RAID5) 1190 volsize = size * (numdisks - 1); 1191 else { /* RAID1E */ 1192 volsize = ((size * numdisks) / strip / 2) * 1193 strip; 1194 } 1195 if (volsize > 0xffffffffllu * sectorsize) { 1196 gctl_error(req, "Size too big."); 1197 return (-14); 1198 } 1199 1200 /* We have all we need, create things: volume, ... */ 1201 mdi->mdio_total_disks = numdisks; 1202 mdi->mdio_started = 1; 1203 vol = g_raid_create_volume(sc, volname, -1); 1204 vol->v_md_data = (void *)(intptr_t)0; 1205 vol->v_raid_level = level; 1206 vol->v_raid_level_qualifier = qual; 1207 vol->v_strip_size = strip; 1208 vol->v_disks_count = numdisks; 1209 vol->v_mediasize = volsize; 1210 vol->v_sectorsize = sectorsize; 1211 g_raid_start_volume(vol); 1212 1213 /* , and subdisks. */ 1214 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1215 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 1216 sd = &vol->v_subdisks[pd->pd_disk_pos]; 1217 sd->sd_disk = disk; 1218 sd->sd_offset = 0; 1219 sd->sd_size = size; 1220 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 1221 if (sd->sd_disk->d_consumer != NULL) { 1222 g_raid_change_disk_state(disk, 1223 G_RAID_DISK_S_ACTIVE); 1224 g_raid_change_subdisk_state(sd, 1225 G_RAID_SUBDISK_S_ACTIVE); 1226 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 1227 G_RAID_EVENT_SUBDISK); 1228 } else { 1229 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1230 } 1231 } 1232 1233 /* Write metadata based on created entities. */ 1234 G_RAID_DEBUG1(0, sc, "Array started."); 1235 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 1236 1237 /* Pickup any STALE/SPARE disks to refill array if needed. */ 1238 g_raid_md_nvidia_refill(sc); 1239 1240 g_raid_event_send(vol, G_RAID_VOLUME_E_START, 1241 G_RAID_EVENT_VOLUME); 1242 return (0); 1243 } 1244 if (strcmp(verb, "delete") == 0) { 1245 /* Check if some volume is still open. */ 1246 force = gctl_get_paraml(req, "force", sizeof(*force)); 1247 if (force != NULL && *force == 0 && 1248 g_raid_nopens(sc) != 0) { 1249 gctl_error(req, "Some volume is still open."); 1250 return (-4); 1251 } 1252 1253 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1254 if (disk->d_consumer) 1255 nvidia_meta_erase(disk->d_consumer); 1256 } 1257 g_raid_destroy_node(sc, 0); 1258 return (0); 1259 } 1260 if (strcmp(verb, "remove") == 0 || 1261 strcmp(verb, "fail") == 0) { 1262 if (*nargs < 2) { 1263 gctl_error(req, "Invalid number of arguments."); 1264 return (-1); 1265 } 1266 for (i = 1; i < *nargs; i++) { 1267 snprintf(arg, sizeof(arg), "arg%d", i); 1268 diskname = gctl_get_asciiparam(req, arg); 1269 if (diskname == NULL) { 1270 gctl_error(req, "No disk name (%s).", arg); 1271 error = -2; 1272 break; 1273 } 1274 if (strncmp(diskname, _PATH_DEV, 5) == 0) 1275 diskname += 5; 1276 1277 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1278 if (disk->d_consumer != NULL && 1279 disk->d_consumer->provider != NULL && 1280 strcmp(disk->d_consumer->provider->name, 1281 diskname) == 0) 1282 break; 1283 } 1284 if (disk == NULL) { 1285 gctl_error(req, "Disk '%s' not found.", 1286 diskname); 1287 error = -3; 1288 break; 1289 } 1290 1291 if (strcmp(verb, "fail") == 0) { 1292 g_raid_md_fail_disk_nvidia(md, NULL, disk); 1293 continue; 1294 } 1295 1296 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 1297 1298 /* Erase metadata on deleting disk. */ 1299 nvidia_meta_erase(disk->d_consumer); 1300 1301 /* If disk was assigned, just update statuses. */ 1302 if (pd->pd_disk_pos >= 0) { 1303 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1304 g_raid_kill_consumer(sc, disk->d_consumer); 1305 disk->d_consumer = NULL; 1306 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 1307 g_raid_change_subdisk_state(sd, 1308 G_RAID_SUBDISK_S_NONE); 1309 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED, 1310 G_RAID_EVENT_SUBDISK); 1311 } 1312 } else { 1313 /* Otherwise -- delete. */ 1314 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 1315 g_raid_destroy_disk(disk); 1316 } 1317 } 1318 1319 /* Write updated metadata to remaining disks. */ 1320 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 1321 1322 /* Check if anything left except placeholders. */ 1323 if (g_raid_ndisks(sc, -1) == 1324 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1325 g_raid_destroy_node(sc, 0); 1326 else 1327 g_raid_md_nvidia_refill(sc); 1328 return (error); 1329 } 1330 if (strcmp(verb, "insert") == 0) { 1331 if (*nargs < 2) { 1332 gctl_error(req, "Invalid number of arguments."); 1333 return (-1); 1334 } 1335 update = 0; 1336 for (i = 1; i < *nargs; i++) { 1337 /* Get disk name. */ 1338 snprintf(arg, sizeof(arg), "arg%d", i); 1339 diskname = gctl_get_asciiparam(req, arg); 1340 if (diskname == NULL) { 1341 gctl_error(req, "No disk name (%s).", arg); 1342 error = -3; 1343 break; 1344 } 1345 1346 /* Try to find provider with specified name. */ 1347 g_topology_lock(); 1348 cp = g_raid_open_consumer(sc, diskname); 1349 if (cp == NULL) { 1350 gctl_error(req, "Can't open disk '%s'.", 1351 diskname); 1352 g_topology_unlock(); 1353 error = -4; 1354 break; 1355 } 1356 pp = cp->provider; 1357 1358 pd = malloc(sizeof(*pd), M_MD_NVIDIA, M_WAITOK | M_ZERO); 1359 pd->pd_disk_pos = -3; 1360 pd->pd_disk_size = pp->mediasize; 1361 1362 disk = g_raid_create_disk(sc); 1363 disk->d_consumer = cp; 1364 disk->d_md_data = (void *)pd; 1365 cp->private = disk; 1366 g_topology_unlock(); 1367 1368 g_raid_get_disk_info(disk); 1369 1370 /* Welcome the "new" disk. */ 1371 update += g_raid_md_nvidia_start_disk(disk); 1372 if (disk->d_state != G_RAID_DISK_S_SPARE && 1373 disk->d_state != G_RAID_DISK_S_ACTIVE) { 1374 gctl_error(req, "Disk '%s' doesn't fit.", 1375 diskname); 1376 g_raid_destroy_disk(disk); 1377 error = -8; 1378 break; 1379 } 1380 } 1381 1382 /* Write new metadata if we changed something. */ 1383 if (update) 1384 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 1385 return (error); 1386 } 1387 gctl_error(req, "Command '%s' is not supported.", verb); 1388 return (-100); 1389 } 1390 1391 static int 1392 g_raid_md_write_nvidia(struct g_raid_md_object *md, struct g_raid_volume *tvol, 1393 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1394 { 1395 struct g_raid_softc *sc; 1396 struct g_raid_volume *vol; 1397 struct g_raid_subdisk *sd; 1398 struct g_raid_disk *disk; 1399 struct g_raid_md_nvidia_object *mdi; 1400 struct g_raid_md_nvidia_perdisk *pd; 1401 struct nvidia_raid_conf *meta; 1402 int i, spares; 1403 1404 sc = md->mdo_softc; 1405 mdi = (struct g_raid_md_nvidia_object *)md; 1406 1407 if (sc->sc_stopping == G_RAID_DESTROY_HARD) 1408 return (0); 1409 1410 /* There is only one volume. */ 1411 vol = TAILQ_FIRST(&sc->sc_volumes); 1412 1413 /* Fill global fields. */ 1414 meta = malloc(sizeof(*meta), M_MD_NVIDIA, M_WAITOK | M_ZERO); 1415 if (mdi->mdio_meta) 1416 memcpy(meta, mdi->mdio_meta, sizeof(*meta)); 1417 memcpy(meta->nvidia_id, NVIDIA_MAGIC, sizeof(NVIDIA_MAGIC) - 1); 1418 meta->config_size = 30; 1419 meta->version = 0x0064; 1420 meta->total_sectors = vol->v_mediasize / vol->v_sectorsize; 1421 meta->sector_size = vol->v_sectorsize; 1422 nvidia_meta_put_name(meta, vol->v_name); 1423 meta->magic_0 = NVIDIA_MAGIC0; 1424 memcpy(&meta->volume_id, &mdi->mdio_volume_id, 16); 1425 meta->state = NVIDIA_S_IDLE; 1426 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) 1427 meta->array_width = 1; 1428 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) 1429 meta->array_width = vol->v_disks_count / 2; 1430 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID5) 1431 meta->array_width = vol->v_disks_count - 1; 1432 else 1433 meta->array_width = vol->v_disks_count; 1434 meta->total_disks = vol->v_disks_count; 1435 meta->orig_array_width = meta->array_width; 1436 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID0) 1437 meta->type = NVIDIA_T_RAID0; 1438 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) 1439 meta->type = NVIDIA_T_RAID1; 1440 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) 1441 meta->type = NVIDIA_T_RAID01; 1442 else if (vol->v_raid_level == G_RAID_VOLUME_RL_CONCAT || 1443 vol->v_raid_level == G_RAID_VOLUME_RL_SINGLE) 1444 meta->type = NVIDIA_T_CONCAT; 1445 else if (vol->v_raid_level_qualifier == G_RAID_VOLUME_RLQ_R5LA) 1446 meta->type = NVIDIA_T_RAID5; 1447 else 1448 meta->type = NVIDIA_T_RAID5_SYM; 1449 meta->strip_sectors = vol->v_strip_size / vol->v_sectorsize; 1450 meta->strip_bytes = vol->v_strip_size; 1451 meta->strip_shift = ffs(meta->strip_sectors) - 1; 1452 meta->strip_mask = meta->strip_sectors - 1; 1453 meta->stripe_sectors = meta->strip_sectors * meta->orig_array_width; 1454 meta->stripe_bytes = meta->stripe_sectors * vol->v_sectorsize; 1455 meta->rebuild_lba = 0; 1456 meta->orig_type = meta->type; 1457 meta->orig_total_sectors = meta->total_sectors; 1458 meta->status = 0; 1459 1460 for (i = 0; i < vol->v_disks_count; i++) { 1461 sd = &vol->v_subdisks[i]; 1462 if ((sd->sd_state == G_RAID_SUBDISK_S_STALE || 1463 sd->sd_state == G_RAID_SUBDISK_S_RESYNC || 1464 vol->v_dirty) && 1465 meta->state != NVIDIA_S_REBUILD) 1466 meta->state = NVIDIA_S_SYNC; 1467 else if (sd->sd_state == G_RAID_SUBDISK_S_NEW || 1468 sd->sd_state == G_RAID_SUBDISK_S_REBUILD) 1469 meta->state = NVIDIA_S_REBUILD; 1470 } 1471 1472 /* We are done. Print meta data and store them to disks. */ 1473 if (mdi->mdio_meta != NULL) 1474 free(mdi->mdio_meta, M_MD_NVIDIA); 1475 mdi->mdio_meta = meta; 1476 spares = 0; 1477 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1478 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 1479 if (disk->d_state != G_RAID_DISK_S_ACTIVE && 1480 disk->d_state != G_RAID_DISK_S_SPARE) 1481 continue; 1482 if (pd->pd_meta != NULL) { 1483 free(pd->pd_meta, M_MD_NVIDIA); 1484 pd->pd_meta = NULL; 1485 } 1486 pd->pd_meta = nvidia_meta_copy(meta); 1487 if ((sd = TAILQ_FIRST(&disk->d_subdisks)) != NULL) { 1488 /* For RAID0+1 we need to translate order. */ 1489 pd->pd_meta->disk_number = 1490 nvidia_meta_translate_disk(meta, sd->sd_pos); 1491 if (sd->sd_state != G_RAID_SUBDISK_S_ACTIVE) { 1492 pd->pd_meta->disk_status = 0x100; 1493 pd->pd_meta->rebuild_lba = 1494 sd->sd_rebuild_pos / vol->v_sectorsize * 1495 meta->array_width; 1496 } 1497 } else 1498 pd->pd_meta->disk_number = meta->total_disks + spares++; 1499 G_RAID_DEBUG(1, "Writing NVIDIA metadata to %s", 1500 g_raid_get_diskname(disk)); 1501 g_raid_md_nvidia_print(pd->pd_meta); 1502 nvidia_meta_write(disk->d_consumer, pd->pd_meta); 1503 } 1504 return (0); 1505 } 1506 1507 static int 1508 g_raid_md_fail_disk_nvidia(struct g_raid_md_object *md, 1509 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1510 { 1511 struct g_raid_softc *sc; 1512 struct g_raid_md_nvidia_perdisk *pd; 1513 struct g_raid_subdisk *sd; 1514 1515 sc = md->mdo_softc; 1516 pd = (struct g_raid_md_nvidia_perdisk *)tdisk->d_md_data; 1517 1518 /* We can't fail disk that is not a part of array now. */ 1519 if (pd->pd_disk_pos < 0) 1520 return (-1); 1521 1522 /* Erase metadata to prevent disks's later resurrection. */ 1523 if (tdisk->d_consumer) 1524 nvidia_meta_erase(tdisk->d_consumer); 1525 1526 /* Change states. */ 1527 g_raid_change_disk_state(tdisk, G_RAID_DISK_S_FAILED); 1528 TAILQ_FOREACH(sd, &tdisk->d_subdisks, sd_next) { 1529 g_raid_change_subdisk_state(sd, 1530 G_RAID_SUBDISK_S_FAILED); 1531 g_raid_event_send(sd, G_RAID_SUBDISK_E_FAILED, 1532 G_RAID_EVENT_SUBDISK); 1533 } 1534 1535 /* Write updated metadata to remaining disks. */ 1536 g_raid_md_write_nvidia(md, NULL, NULL, tdisk); 1537 1538 /* Check if anything left except placeholders. */ 1539 if (g_raid_ndisks(sc, -1) == 1540 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1541 g_raid_destroy_node(sc, 0); 1542 else 1543 g_raid_md_nvidia_refill(sc); 1544 return (0); 1545 } 1546 1547 static int 1548 g_raid_md_free_disk_nvidia(struct g_raid_md_object *md, 1549 struct g_raid_disk *disk) 1550 { 1551 struct g_raid_md_nvidia_perdisk *pd; 1552 1553 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 1554 if (pd->pd_meta != NULL) { 1555 free(pd->pd_meta, M_MD_NVIDIA); 1556 pd->pd_meta = NULL; 1557 } 1558 free(pd, M_MD_NVIDIA); 1559 disk->d_md_data = NULL; 1560 return (0); 1561 } 1562 1563 static int 1564 g_raid_md_free_nvidia(struct g_raid_md_object *md) 1565 { 1566 struct g_raid_md_nvidia_object *mdi; 1567 1568 mdi = (struct g_raid_md_nvidia_object *)md; 1569 if (!mdi->mdio_started) { 1570 mdi->mdio_started = 0; 1571 callout_stop(&mdi->mdio_start_co); 1572 G_RAID_DEBUG1(1, md->mdo_softc, 1573 "root_mount_rel %p", mdi->mdio_rootmount); 1574 root_mount_rel(mdi->mdio_rootmount); 1575 mdi->mdio_rootmount = NULL; 1576 } 1577 if (mdi->mdio_meta != NULL) { 1578 free(mdi->mdio_meta, M_MD_NVIDIA); 1579 mdi->mdio_meta = NULL; 1580 } 1581 return (0); 1582 } 1583 1584 G_RAID_MD_DECLARE(nvidia, "NVIDIA");
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