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/raid/g_raid.h" 46 #include "g_raid_md_if.h" 47 48 static MALLOC_DEFINE(M_MD_NVIDIA, "md_nvidia_data", "GEOM_RAID NVIDIA metadata"); 49 50 struct nvidia_raid_conf { 51 uint8_t nvidia_id[8]; 52 #define NVIDIA_MAGIC "NVIDIA " 53 54 uint32_t config_size; 55 uint32_t checksum; 56 uint16_t version; 57 uint8_t disk_number; 58 uint8_t dummy_0; 59 uint32_t total_sectors; 60 uint32_t sector_size; 61 uint8_t name[16]; 62 uint8_t revision[4]; 63 uint32_t disk_status; 64 65 uint32_t magic_0; 66 #define NVIDIA_MAGIC0 0x00640044 67 68 uint64_t volume_id[2]; 69 uint8_t state; 70 #define NVIDIA_S_IDLE 0 71 #define NVIDIA_S_INIT 2 72 #define NVIDIA_S_REBUILD 3 73 #define NVIDIA_S_UPGRADE 4 74 #define NVIDIA_S_SYNC 5 75 uint8_t array_width; 76 uint8_t total_disks; 77 uint8_t orig_array_width; 78 uint16_t type; 79 #define NVIDIA_T_RAID0 0x0080 80 #define NVIDIA_T_RAID1 0x0081 81 #define NVIDIA_T_RAID3 0x0083 82 #define NVIDIA_T_RAID5 0x0085 /* RLQ = 00/02? */ 83 #define NVIDIA_T_RAID5_SYM 0x0095 /* RLQ = 03 */ 84 #define NVIDIA_T_RAID10 0x008a 85 #define NVIDIA_T_RAID01 0x8180 86 #define NVIDIA_T_CONCAT 0x00ff 87 88 uint16_t dummy_3; 89 uint32_t strip_sectors; 90 uint32_t strip_bytes; 91 uint32_t strip_shift; 92 uint32_t strip_mask; 93 uint32_t stripe_sectors; 94 uint32_t stripe_bytes; 95 uint32_t rebuild_lba; 96 uint32_t orig_type; 97 uint32_t orig_total_sectors; 98 uint32_t status; 99 #define NVIDIA_S_BOOTABLE 0x00000001 100 #define NVIDIA_S_DEGRADED 0x00000002 101 102 uint32_t filler[98]; 103 } __packed; 104 105 struct g_raid_md_nvidia_perdisk { 106 struct nvidia_raid_conf *pd_meta; 107 int pd_disk_pos; 108 off_t pd_disk_size; 109 }; 110 111 struct g_raid_md_nvidia_object { 112 struct g_raid_md_object mdio_base; 113 uint64_t mdio_volume_id[2]; 114 struct nvidia_raid_conf *mdio_meta; 115 struct callout mdio_start_co; /* STARTING state timer. */ 116 int mdio_total_disks; 117 int mdio_disks_present; 118 int mdio_started; 119 int mdio_incomplete; 120 struct root_hold_token *mdio_rootmount; /* Root mount delay token. */ 121 }; 122 123 static g_raid_md_create_t g_raid_md_create_nvidia; 124 static g_raid_md_taste_t g_raid_md_taste_nvidia; 125 static g_raid_md_event_t g_raid_md_event_nvidia; 126 static g_raid_md_ctl_t g_raid_md_ctl_nvidia; 127 static g_raid_md_write_t g_raid_md_write_nvidia; 128 static g_raid_md_fail_disk_t g_raid_md_fail_disk_nvidia; 129 static g_raid_md_free_disk_t g_raid_md_free_disk_nvidia; 130 static g_raid_md_free_t g_raid_md_free_nvidia; 131 132 static kobj_method_t g_raid_md_nvidia_methods[] = { 133 KOBJMETHOD(g_raid_md_create, g_raid_md_create_nvidia), 134 KOBJMETHOD(g_raid_md_taste, g_raid_md_taste_nvidia), 135 KOBJMETHOD(g_raid_md_event, g_raid_md_event_nvidia), 136 KOBJMETHOD(g_raid_md_ctl, g_raid_md_ctl_nvidia), 137 KOBJMETHOD(g_raid_md_write, g_raid_md_write_nvidia), 138 KOBJMETHOD(g_raid_md_fail_disk, g_raid_md_fail_disk_nvidia), 139 KOBJMETHOD(g_raid_md_free_disk, g_raid_md_free_disk_nvidia), 140 KOBJMETHOD(g_raid_md_free, g_raid_md_free_nvidia), 141 { 0, 0 } 142 }; 143 144 static struct g_raid_md_class g_raid_md_nvidia_class = { 145 "NVIDIA", 146 g_raid_md_nvidia_methods, 147 sizeof(struct g_raid_md_nvidia_object), 148 .mdc_enable = 1, 149 .mdc_priority = 100 150 }; 151 152 static int NVIDIANodeID = 1; 153 154 static void 155 g_raid_md_nvidia_print(struct nvidia_raid_conf *meta) 156 { 157 158 if (g_raid_debug < 1) 159 return; 160 161 printf("********* ATA NVIDIA RAID Metadata *********\n"); 162 printf("nvidia_id <%.8s>\n", meta->nvidia_id); 163 printf("config_size %u\n", meta->config_size); 164 printf("checksum 0x%08x\n", meta->checksum); 165 printf("version 0x%04x\n", meta->version); 166 printf("disk_number %d\n", meta->disk_number); 167 printf("dummy_0 0x%02x\n", meta->dummy_0); 168 printf("total_sectors %u\n", meta->total_sectors); 169 printf("sector_size %u\n", meta->sector_size); 170 printf("name <%.16s>\n", meta->name); 171 printf("revision 0x%02x%02x%02x%02x\n", 172 meta->revision[0], meta->revision[1], 173 meta->revision[2], meta->revision[3]); 174 printf("disk_status 0x%08x\n", meta->disk_status); 175 printf("magic_0 0x%08x\n", meta->magic_0); 176 printf("volume_id 0x%016jx%016jx\n", 177 meta->volume_id[1], meta->volume_id[0]); 178 printf("state 0x%02x\n", meta->state); 179 printf("array_width %u\n", meta->array_width); 180 printf("total_disks %u\n", meta->total_disks); 181 printf("orig_array_width %u\n", meta->orig_array_width); 182 printf("type 0x%04x\n", meta->type); 183 printf("dummy_3 0x%04x\n", meta->dummy_3); 184 printf("strip_sectors %u\n", meta->strip_sectors); 185 printf("strip_bytes %u\n", meta->strip_bytes); 186 printf("strip_shift %u\n", meta->strip_shift); 187 printf("strip_mask 0x%08x\n", meta->strip_mask); 188 printf("stripe_sectors %u\n", meta->stripe_sectors); 189 printf("stripe_bytes %u\n", meta->stripe_bytes); 190 printf("rebuild_lba %u\n", meta->rebuild_lba); 191 printf("orig_type 0x%04x\n", meta->orig_type); 192 printf("orig_total_sectors %u\n", meta->orig_total_sectors); 193 printf("status 0x%08x\n", meta->status); 194 printf("=================================================\n"); 195 } 196 197 static struct nvidia_raid_conf * 198 nvidia_meta_copy(struct nvidia_raid_conf *meta) 199 { 200 struct nvidia_raid_conf *nmeta; 201 202 nmeta = malloc(sizeof(*meta), M_MD_NVIDIA, M_WAITOK); 203 memcpy(nmeta, meta, sizeof(*meta)); 204 return (nmeta); 205 } 206 207 static int 208 nvidia_meta_translate_disk(struct nvidia_raid_conf *meta, int md_disk_pos) 209 { 210 int disk_pos; 211 212 if (md_disk_pos >= 0 && meta->type == NVIDIA_T_RAID01) { 213 disk_pos = (md_disk_pos / meta->array_width) + 214 (md_disk_pos % meta->array_width) * meta->array_width; 215 } else 216 disk_pos = md_disk_pos; 217 return (disk_pos); 218 } 219 220 static void 221 nvidia_meta_get_name(struct nvidia_raid_conf *meta, char *buf) 222 { 223 int i; 224 225 strncpy(buf, meta->name, 16); 226 buf[16] = 0; 227 for (i = 15; i >= 0; i--) { 228 if (buf[i] > 0x20) 229 break; 230 buf[i] = 0; 231 } 232 } 233 234 static void 235 nvidia_meta_put_name(struct nvidia_raid_conf *meta, char *buf) 236 { 237 238 memset(meta->name, 0x20, 16); 239 memcpy(meta->name, buf, MIN(strlen(buf), 16)); 240 } 241 242 static struct nvidia_raid_conf * 243 nvidia_meta_read(struct g_consumer *cp) 244 { 245 struct g_provider *pp; 246 struct nvidia_raid_conf *meta; 247 char *buf; 248 int error, i; 249 uint32_t checksum, *ptr; 250 251 pp = cp->provider; 252 253 /* Read the anchor sector. */ 254 buf = g_read_data(cp, 255 pp->mediasize - 2 * pp->sectorsize, pp->sectorsize, &error); 256 if (buf == NULL) { 257 G_RAID_DEBUG(1, "Cannot read metadata from %s (error=%d).", 258 pp->name, error); 259 return (NULL); 260 } 261 meta = (struct nvidia_raid_conf *)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 g_free(buf); 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 g_free(buf); 274 return (NULL); 275 } 276 meta = malloc(sizeof(*meta), M_MD_NVIDIA, M_WAITOK); 277 memcpy(meta, buf, min(sizeof(*meta), pp->sectorsize)); 278 g_free(buf); 279 280 /* Check metadata checksum. */ 281 for (checksum = 0, ptr = (uint32_t *)meta, 282 i = 0; i < meta->config_size; i++) 283 checksum += *ptr++; 284 if (checksum != 0) { 285 G_RAID_DEBUG(1, "NVIDIA checksum check failed on %s", pp->name); 286 free(meta, M_MD_NVIDIA); 287 return (NULL); 288 } 289 290 /* Check volume state. */ 291 if (meta->state != NVIDIA_S_IDLE && meta->state != NVIDIA_S_INIT && 292 meta->state != NVIDIA_S_REBUILD && meta->state != NVIDIA_S_SYNC) { 293 G_RAID_DEBUG(1, "NVIDIA unknown state on %s (0x%02x)", 294 pp->name, meta->state); 295 free(meta, M_MD_NVIDIA); 296 return (NULL); 297 } 298 299 /* Check raid type. */ 300 if (meta->type != NVIDIA_T_RAID0 && meta->type != NVIDIA_T_RAID1 && 301 meta->type != NVIDIA_T_RAID3 && meta->type != NVIDIA_T_RAID5 && 302 meta->type != NVIDIA_T_RAID5_SYM && 303 meta->type != NVIDIA_T_RAID01 && meta->type != NVIDIA_T_CONCAT) { 304 G_RAID_DEBUG(1, "NVIDIA unknown RAID level on %s (0x%02x)", 305 pp->name, meta->type); 306 free(meta, M_MD_NVIDIA); 307 return (NULL); 308 } 309 310 return (meta); 311 } 312 313 static int 314 nvidia_meta_write(struct g_consumer *cp, struct nvidia_raid_conf *meta) 315 { 316 struct g_provider *pp; 317 char *buf; 318 int error, i; 319 uint32_t checksum, *ptr; 320 321 pp = cp->provider; 322 323 /* Recalculate checksum for case if metadata were changed. */ 324 meta->checksum = 0; 325 for (checksum = 0, ptr = (uint32_t *)meta, 326 i = 0; i < meta->config_size; i++) 327 checksum += *ptr++; 328 meta->checksum -= checksum; 329 330 /* Create and fill buffer. */ 331 buf = malloc(pp->sectorsize, M_MD_NVIDIA, M_WAITOK | M_ZERO); 332 memcpy(buf, meta, sizeof(*meta)); 333 334 /* Write metadata. */ 335 error = g_write_data(cp, 336 pp->mediasize - 2 * pp->sectorsize, buf, pp->sectorsize); 337 if (error != 0) { 338 G_RAID_DEBUG(1, "Cannot write metadata to %s (error=%d).", 339 pp->name, error); 340 } 341 342 free(buf, M_MD_NVIDIA); 343 return (error); 344 } 345 346 static int 347 nvidia_meta_erase(struct g_consumer *cp) 348 { 349 struct g_provider *pp; 350 char *buf; 351 int error; 352 353 pp = cp->provider; 354 buf = malloc(pp->sectorsize, M_MD_NVIDIA, M_WAITOK | M_ZERO); 355 error = g_write_data(cp, 356 pp->mediasize - 2 * pp->sectorsize, buf, pp->sectorsize); 357 if (error != 0) { 358 G_RAID_DEBUG(1, "Cannot erase metadata on %s (error=%d).", 359 pp->name, error); 360 } 361 free(buf, M_MD_NVIDIA); 362 return (error); 363 } 364 365 static struct g_raid_disk * 366 g_raid_md_nvidia_get_disk(struct g_raid_softc *sc, int id) 367 { 368 struct g_raid_disk *disk; 369 struct g_raid_md_nvidia_perdisk *pd; 370 371 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 372 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 373 if (pd->pd_disk_pos == id) 374 break; 375 } 376 return (disk); 377 } 378 379 static int 380 g_raid_md_nvidia_supported(int level, int qual, int disks, int force) 381 { 382 383 switch (level) { 384 case G_RAID_VOLUME_RL_RAID0: 385 if (disks < 1) 386 return (0); 387 if (!force && (disks < 2 || disks > 6)) 388 return (0); 389 break; 390 case G_RAID_VOLUME_RL_RAID1: 391 if (disks < 1) 392 return (0); 393 if (!force && (disks != 2)) 394 return (0); 395 break; 396 case G_RAID_VOLUME_RL_RAID1E: 397 if (disks < 2) 398 return (0); 399 if (disks % 2 != 0) 400 return (0); 401 if (!force && (disks < 4)) 402 return (0); 403 break; 404 case G_RAID_VOLUME_RL_SINGLE: 405 if (disks != 1) 406 return (0); 407 break; 408 case G_RAID_VOLUME_RL_CONCAT: 409 if (disks < 2) 410 return (0); 411 break; 412 case G_RAID_VOLUME_RL_RAID5: 413 if (disks < 3) 414 return (0); 415 if (qual != G_RAID_VOLUME_RLQ_R5LA && 416 qual != G_RAID_VOLUME_RLQ_R5LS) 417 return (0); 418 break; 419 default: 420 return (0); 421 } 422 if (level != G_RAID_VOLUME_RL_RAID5 && qual != G_RAID_VOLUME_RLQ_NONE) 423 return (0); 424 return (1); 425 } 426 427 static int 428 g_raid_md_nvidia_start_disk(struct g_raid_disk *disk) 429 { 430 struct g_raid_softc *sc; 431 struct g_raid_subdisk *sd, *tmpsd; 432 struct g_raid_disk *olddisk, *tmpdisk; 433 struct g_raid_md_object *md; 434 struct g_raid_md_nvidia_object *mdi; 435 struct g_raid_md_nvidia_perdisk *pd, *oldpd; 436 struct nvidia_raid_conf *meta; 437 int disk_pos, resurrection = 0; 438 439 sc = disk->d_softc; 440 md = sc->sc_md; 441 mdi = (struct g_raid_md_nvidia_object *)md; 442 meta = mdi->mdio_meta; 443 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 444 olddisk = NULL; 445 446 /* Find disk position in metadata by its serial. */ 447 if (pd->pd_meta != NULL) { 448 disk_pos = pd->pd_meta->disk_number; 449 if (disk_pos >= meta->total_disks || mdi->mdio_started) 450 disk_pos = -3; 451 } else 452 disk_pos = -3; 453 /* For RAID0+1 we need to translate order. */ 454 disk_pos = nvidia_meta_translate_disk(meta, disk_pos); 455 if (disk_pos < 0) { 456 G_RAID_DEBUG1(1, sc, "Unknown, probably new or stale disk"); 457 /* If we are in the start process, that's all for now. */ 458 if (!mdi->mdio_started) 459 goto nofit; 460 /* 461 * If we have already started - try to get use of the disk. 462 * Try to replace OFFLINE disks first, then FAILED. 463 */ 464 TAILQ_FOREACH(tmpdisk, &sc->sc_disks, d_next) { 465 if (tmpdisk->d_state != G_RAID_DISK_S_OFFLINE && 466 tmpdisk->d_state != G_RAID_DISK_S_FAILED) 467 continue; 468 /* Make sure this disk is big enough. */ 469 TAILQ_FOREACH(sd, &tmpdisk->d_subdisks, sd_next) { 470 if (sd->sd_offset + sd->sd_size + 2 * 512 > 471 pd->pd_disk_size) { 472 G_RAID_DEBUG1(1, sc, 473 "Disk too small (%ju < %ju)", 474 pd->pd_disk_size, 475 sd->sd_offset + sd->sd_size + 512); 476 break; 477 } 478 } 479 if (sd != NULL) 480 continue; 481 if (tmpdisk->d_state == G_RAID_DISK_S_OFFLINE) { 482 olddisk = tmpdisk; 483 break; 484 } else if (olddisk == NULL) 485 olddisk = tmpdisk; 486 } 487 if (olddisk == NULL) { 488 nofit: 489 g_raid_change_disk_state(disk, G_RAID_DISK_S_SPARE); 490 return (1); 491 } 492 oldpd = (struct g_raid_md_nvidia_perdisk *)olddisk->d_md_data; 493 disk_pos = oldpd->pd_disk_pos; 494 resurrection = 1; 495 } 496 497 if (olddisk == NULL) { 498 /* Find placeholder by position. */ 499 olddisk = g_raid_md_nvidia_get_disk(sc, disk_pos); 500 if (olddisk == NULL) 501 panic("No disk at position %d!", disk_pos); 502 if (olddisk->d_state != G_RAID_DISK_S_OFFLINE) { 503 G_RAID_DEBUG1(1, sc, "More than one disk for pos %d", 504 disk_pos); 505 g_raid_change_disk_state(disk, G_RAID_DISK_S_STALE); 506 return (0); 507 } 508 oldpd = (struct g_raid_md_nvidia_perdisk *)olddisk->d_md_data; 509 } 510 511 /* Replace failed disk or placeholder with new disk. */ 512 TAILQ_FOREACH_SAFE(sd, &olddisk->d_subdisks, sd_next, tmpsd) { 513 TAILQ_REMOVE(&olddisk->d_subdisks, sd, sd_next); 514 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 515 sd->sd_disk = disk; 516 } 517 oldpd->pd_disk_pos = -2; 518 pd->pd_disk_pos = disk_pos; 519 520 /* If it was placeholder -- destroy it. */ 521 if (olddisk->d_state == G_RAID_DISK_S_OFFLINE) { 522 g_raid_destroy_disk(olddisk); 523 } else { 524 /* Otherwise, make it STALE_FAILED. */ 525 g_raid_change_disk_state(olddisk, G_RAID_DISK_S_STALE_FAILED); 526 } 527 528 /* Welcome the new disk. */ 529 if (resurrection) 530 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE); 531 else// if (pd->pd_meta->disk_status == NVIDIA_S_CURRENT || 532 //pd->pd_meta->disk_status == NVIDIA_S_REBUILD) 533 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE); 534 // else 535 // g_raid_change_disk_state(disk, G_RAID_DISK_S_FAILED); 536 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 537 538 /* 539 * Different disks may have different sizes, 540 * in concat mode. Update from real disk size. 541 */ 542 if (meta->type == NVIDIA_T_CONCAT) 543 sd->sd_size = pd->pd_disk_size - 0x800 * 512; 544 545 if (resurrection) { 546 /* New or ex-spare disk. */ 547 g_raid_change_subdisk_state(sd, 548 G_RAID_SUBDISK_S_NEW); 549 } else if (meta->state == NVIDIA_S_REBUILD && 550 (pd->pd_meta->disk_status & 0x100)) { 551 /* Rebuilding disk. */ 552 g_raid_change_subdisk_state(sd, 553 G_RAID_SUBDISK_S_REBUILD); 554 sd->sd_rebuild_pos = (off_t)pd->pd_meta->rebuild_lba / 555 meta->array_width * pd->pd_meta->sector_size; 556 } else if (meta->state == NVIDIA_S_SYNC) { 557 /* Resyncing/dirty disk. */ 558 g_raid_change_subdisk_state(sd, 559 G_RAID_SUBDISK_S_RESYNC); 560 sd->sd_rebuild_pos = (off_t)pd->pd_meta->rebuild_lba / 561 meta->array_width * pd->pd_meta->sector_size; 562 } else { 563 /* Up to date disk. */ 564 g_raid_change_subdisk_state(sd, 565 G_RAID_SUBDISK_S_ACTIVE); 566 } 567 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 568 G_RAID_EVENT_SUBDISK); 569 } 570 571 /* Update status of our need for spare. */ 572 if (mdi->mdio_started) { 573 mdi->mdio_incomplete = 574 (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < 575 mdi->mdio_total_disks); 576 } 577 578 return (resurrection); 579 } 580 581 static void 582 g_disk_md_nvidia_retaste(void *arg, int pending) 583 { 584 585 G_RAID_DEBUG(1, "Array is not complete, trying to retaste."); 586 g_retaste(&g_raid_class); 587 free(arg, M_MD_NVIDIA); 588 } 589 590 static void 591 g_raid_md_nvidia_refill(struct g_raid_softc *sc) 592 { 593 struct g_raid_md_object *md; 594 struct g_raid_md_nvidia_object *mdi; 595 struct g_raid_disk *disk; 596 struct task *task; 597 int update, na; 598 599 md = sc->sc_md; 600 mdi = (struct g_raid_md_nvidia_object *)md; 601 update = 0; 602 do { 603 /* Make sure we miss anything. */ 604 na = g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE); 605 if (na == mdi->mdio_total_disks) 606 break; 607 608 G_RAID_DEBUG1(1, md->mdo_softc, 609 "Array is not complete (%d of %d), " 610 "trying to refill.", na, mdi->mdio_total_disks); 611 612 /* Try to get use some of STALE disks. */ 613 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 614 if (disk->d_state == G_RAID_DISK_S_STALE) { 615 update += g_raid_md_nvidia_start_disk(disk); 616 if (disk->d_state == G_RAID_DISK_S_ACTIVE) 617 break; 618 } 619 } 620 if (disk != NULL) 621 continue; 622 623 /* Try to get use some of SPARE disks. */ 624 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 625 if (disk->d_state == G_RAID_DISK_S_SPARE) { 626 update += g_raid_md_nvidia_start_disk(disk); 627 if (disk->d_state == G_RAID_DISK_S_ACTIVE) 628 break; 629 } 630 } 631 } while (disk != NULL); 632 633 /* Write new metadata if we changed something. */ 634 if (update) 635 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 636 637 /* Update status of our need for spare. */ 638 mdi->mdio_incomplete = (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < 639 mdi->mdio_total_disks); 640 641 /* Request retaste hoping to find spare. */ 642 if (mdi->mdio_incomplete) { 643 task = malloc(sizeof(struct task), 644 M_MD_NVIDIA, M_WAITOK | M_ZERO); 645 TASK_INIT(task, 0, g_disk_md_nvidia_retaste, task); 646 taskqueue_enqueue(taskqueue_swi, task); 647 } 648 } 649 650 static void 651 g_raid_md_nvidia_start(struct g_raid_softc *sc) 652 { 653 struct g_raid_md_object *md; 654 struct g_raid_md_nvidia_object *mdi; 655 struct g_raid_md_nvidia_perdisk *pd; 656 struct nvidia_raid_conf *meta; 657 struct g_raid_volume *vol; 658 struct g_raid_subdisk *sd; 659 struct g_raid_disk *disk; 660 off_t size; 661 int j, disk_pos; 662 char buf[17]; 663 664 md = sc->sc_md; 665 mdi = (struct g_raid_md_nvidia_object *)md; 666 meta = mdi->mdio_meta; 667 668 /* Create volumes and subdisks. */ 669 nvidia_meta_get_name(meta, buf); 670 vol = g_raid_create_volume(sc, buf, -1); 671 vol->v_mediasize = (off_t)meta->total_sectors * 512; 672 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_NONE; 673 if (meta->type == NVIDIA_T_RAID0) { 674 vol->v_raid_level = G_RAID_VOLUME_RL_RAID0; 675 size = vol->v_mediasize / mdi->mdio_total_disks; 676 } else if (meta->type == NVIDIA_T_RAID1) { 677 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1; 678 size = vol->v_mediasize; 679 } else if (meta->type == NVIDIA_T_RAID01) { 680 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1E; 681 size = vol->v_mediasize / (mdi->mdio_total_disks / 2); 682 } else if (meta->type == NVIDIA_T_CONCAT) { 683 if (mdi->mdio_total_disks == 1) 684 vol->v_raid_level = G_RAID_VOLUME_RL_SINGLE; 685 else 686 vol->v_raid_level = G_RAID_VOLUME_RL_CONCAT; 687 size = 0; 688 } else if (meta->type == NVIDIA_T_RAID5) { 689 vol->v_raid_level = G_RAID_VOLUME_RL_RAID5; 690 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_R5LA; 691 size = vol->v_mediasize / (mdi->mdio_total_disks - 1); 692 } else if (meta->type == NVIDIA_T_RAID5_SYM) { 693 vol->v_raid_level = G_RAID_VOLUME_RL_RAID5; 694 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_R5LS; 695 size = vol->v_mediasize / (mdi->mdio_total_disks - 1); 696 } else { 697 vol->v_raid_level = G_RAID_VOLUME_RL_UNKNOWN; 698 size = 0; 699 } 700 vol->v_strip_size = meta->strip_sectors * 512; //ZZZ 701 vol->v_disks_count = mdi->mdio_total_disks; 702 vol->v_sectorsize = 512; //ZZZ 703 for (j = 0; j < vol->v_disks_count; j++) { 704 sd = &vol->v_subdisks[j]; 705 sd->sd_offset = 0; 706 sd->sd_size = size; 707 } 708 g_raid_start_volume(vol); 709 710 /* Create disk placeholders to store data for later writing. */ 711 for (disk_pos = 0; disk_pos < mdi->mdio_total_disks; disk_pos++) { 712 pd = malloc(sizeof(*pd), M_MD_NVIDIA, M_WAITOK | M_ZERO); 713 pd->pd_disk_pos = disk_pos; 714 disk = g_raid_create_disk(sc); 715 disk->d_md_data = (void *)pd; 716 disk->d_state = G_RAID_DISK_S_OFFLINE; 717 sd = &vol->v_subdisks[disk_pos]; 718 sd->sd_disk = disk; 719 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 720 } 721 722 /* Make all disks found till the moment take their places. */ 723 do { 724 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 725 if (disk->d_state == G_RAID_DISK_S_NONE) { 726 g_raid_md_nvidia_start_disk(disk); 727 break; 728 } 729 } 730 } while (disk != NULL); 731 732 mdi->mdio_started = 1; 733 G_RAID_DEBUG1(0, sc, "Array started."); 734 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 735 736 /* Pickup any STALE/SPARE disks to refill array if needed. */ 737 g_raid_md_nvidia_refill(sc); 738 739 g_raid_event_send(vol, G_RAID_VOLUME_E_START, G_RAID_EVENT_VOLUME); 740 741 callout_stop(&mdi->mdio_start_co); 742 G_RAID_DEBUG1(1, sc, "root_mount_rel %p", mdi->mdio_rootmount); 743 root_mount_rel(mdi->mdio_rootmount); 744 mdi->mdio_rootmount = NULL; 745 } 746 747 static void 748 g_raid_md_nvidia_new_disk(struct g_raid_disk *disk) 749 { 750 struct g_raid_softc *sc; 751 struct g_raid_md_object *md; 752 struct g_raid_md_nvidia_object *mdi; 753 struct nvidia_raid_conf *pdmeta; 754 struct g_raid_md_nvidia_perdisk *pd; 755 756 sc = disk->d_softc; 757 md = sc->sc_md; 758 mdi = (struct g_raid_md_nvidia_object *)md; 759 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 760 pdmeta = pd->pd_meta; 761 762 if (mdi->mdio_started) { 763 if (g_raid_md_nvidia_start_disk(disk)) 764 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 765 } else { 766 if (mdi->mdio_meta == NULL || 767 mdi->mdio_meta->disk_number >= mdi->mdio_meta->total_disks) { 768 G_RAID_DEBUG1(1, sc, "Newer disk"); 769 if (mdi->mdio_meta != NULL) 770 free(mdi->mdio_meta, M_MD_NVIDIA); 771 mdi->mdio_meta = nvidia_meta_copy(pdmeta); 772 mdi->mdio_total_disks = pdmeta->total_disks; 773 mdi->mdio_disks_present = 1; 774 } else if (pdmeta->disk_number < mdi->mdio_meta->total_disks) { 775 mdi->mdio_disks_present++; 776 G_RAID_DEBUG1(1, sc, "Matching disk (%d of %d up)", 777 mdi->mdio_disks_present, 778 mdi->mdio_total_disks); 779 } else 780 G_RAID_DEBUG1(1, sc, "Spare disk"); 781 782 /* If we collected all needed disks - start array. */ 783 if (mdi->mdio_disks_present == mdi->mdio_total_disks) 784 g_raid_md_nvidia_start(sc); 785 } 786 } 787 788 static void 789 g_raid_nvidia_go(void *arg) 790 { 791 struct g_raid_softc *sc; 792 struct g_raid_md_object *md; 793 struct g_raid_md_nvidia_object *mdi; 794 795 sc = arg; 796 md = sc->sc_md; 797 mdi = (struct g_raid_md_nvidia_object *)md; 798 if (!mdi->mdio_started) { 799 G_RAID_DEBUG1(0, sc, "Force array start due to timeout."); 800 g_raid_event_send(sc, G_RAID_NODE_E_START, 0); 801 } 802 } 803 804 static int 805 g_raid_md_create_nvidia(struct g_raid_md_object *md, struct g_class *mp, 806 struct g_geom **gp) 807 { 808 struct g_raid_softc *sc; 809 struct g_raid_md_nvidia_object *mdi; 810 char name[32]; 811 812 mdi = (struct g_raid_md_nvidia_object *)md; 813 arc4rand(&mdi->mdio_volume_id, 16, 0); 814 snprintf(name, sizeof(name), "NVIDIA-%d", 815 atomic_fetchadd_int(&NVIDIANodeID, 1)); 816 sc = g_raid_create_node(mp, name, md); 817 if (sc == NULL) 818 return (G_RAID_MD_TASTE_FAIL); 819 md->mdo_softc = sc; 820 *gp = sc->sc_geom; 821 return (G_RAID_MD_TASTE_NEW); 822 } 823 824 static int 825 g_raid_md_taste_nvidia(struct g_raid_md_object *md, struct g_class *mp, 826 struct g_consumer *cp, struct g_geom **gp) 827 { 828 struct g_consumer *rcp; 829 struct g_provider *pp; 830 struct g_raid_md_nvidia_object *mdi, *mdi1; 831 struct g_raid_softc *sc; 832 struct g_raid_disk *disk; 833 struct nvidia_raid_conf *meta; 834 struct g_raid_md_nvidia_perdisk *pd; 835 struct g_geom *geom; 836 int result, spare, len; 837 char name[32]; 838 uint16_t vendor; 839 840 G_RAID_DEBUG(1, "Tasting NVIDIA on %s", cp->provider->name); 841 mdi = (struct g_raid_md_nvidia_object *)md; 842 pp = cp->provider; 843 844 /* Read metadata from device. */ 845 meta = NULL; 846 g_topology_unlock(); 847 vendor = 0xffff; 848 len = sizeof(vendor); 849 if (pp->geom->rank == 1) 850 g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor); 851 meta = nvidia_meta_read(cp); 852 g_topology_lock(); 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; 873 874 search: 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 /* There is no return after this point, so we close passed consumer. */ 922 g_access(cp, -1, 0, 0); 923 924 rcp = g_new_consumer(geom); 925 rcp->flags |= G_CF_DIRECT_RECEIVE; 926 g_attach(rcp, pp); 927 if (g_access(rcp, 1, 1, 1) != 0) 928 ; //goto fail1; 929 930 g_topology_unlock(); 931 sx_xlock(&sc->sc_lock); 932 933 pd = malloc(sizeof(*pd), M_MD_NVIDIA, M_WAITOK | M_ZERO); 934 pd->pd_meta = meta; 935 if (spare == 2) { 936 pd->pd_disk_pos = -3; 937 } else { 938 pd->pd_disk_pos = -1; 939 } 940 pd->pd_disk_size = pp->mediasize; 941 disk = g_raid_create_disk(sc); 942 disk->d_md_data = (void *)pd; 943 disk->d_consumer = rcp; 944 rcp->private = disk; 945 946 g_raid_get_disk_info(disk); 947 948 g_raid_md_nvidia_new_disk(disk); 949 950 sx_xunlock(&sc->sc_lock); 951 g_topology_lock(); 952 *gp = geom; 953 return (result); 954 fail1: 955 free(meta, M_MD_NVIDIA); 956 return (G_RAID_MD_TASTE_FAIL); 957 } 958 959 static int 960 g_raid_md_event_nvidia(struct g_raid_md_object *md, 961 struct g_raid_disk *disk, u_int event) 962 { 963 struct g_raid_softc *sc; 964 struct g_raid_subdisk *sd; 965 struct g_raid_md_nvidia_object *mdi; 966 struct g_raid_md_nvidia_perdisk *pd; 967 968 sc = md->mdo_softc; 969 mdi = (struct g_raid_md_nvidia_object *)md; 970 if (disk == NULL) { 971 switch (event) { 972 case G_RAID_NODE_E_START: 973 if (!mdi->mdio_started) { 974 /* Bump volume ID to drop missing disks. */ 975 arc4rand(&mdi->mdio_volume_id, 16, 0); 976 g_raid_md_nvidia_start(sc); 977 } 978 return (0); 979 } 980 return (-1); 981 } 982 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 983 switch (event) { 984 case G_RAID_DISK_E_DISCONNECTED: 985 /* If disk was assigned, just update statuses. */ 986 if (pd->pd_disk_pos >= 0) { 987 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 988 if (disk->d_consumer) { 989 g_raid_kill_consumer(sc, disk->d_consumer); 990 disk->d_consumer = NULL; 991 } 992 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 993 g_raid_change_subdisk_state(sd, 994 G_RAID_SUBDISK_S_NONE); 995 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED, 996 G_RAID_EVENT_SUBDISK); 997 } 998 } else { 999 /* Otherwise -- delete. */ 1000 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 1001 g_raid_destroy_disk(disk); 1002 } 1003 1004 if (mdi->mdio_started) { 1005 /* Bump volume ID to prevent disk resurrection. */ 1006 if (pd->pd_disk_pos >= 0) 1007 arc4rand(&mdi->mdio_volume_id, 16, 0); 1008 1009 /* Write updated metadata to all disks. */ 1010 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 1011 } 1012 1013 /* Check if anything left except placeholders. */ 1014 if (g_raid_ndisks(sc, -1) == 1015 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1016 g_raid_destroy_node(sc, 0); 1017 else 1018 g_raid_md_nvidia_refill(sc); 1019 return (0); 1020 } 1021 return (-2); 1022 } 1023 1024 static int 1025 g_raid_md_ctl_nvidia(struct g_raid_md_object *md, 1026 struct gctl_req *req) 1027 { 1028 struct g_raid_softc *sc; 1029 struct g_raid_volume *vol; 1030 struct g_raid_subdisk *sd; 1031 struct g_raid_disk *disk; 1032 struct g_raid_md_nvidia_object *mdi; 1033 struct g_raid_md_nvidia_perdisk *pd; 1034 struct g_consumer *cp; 1035 struct g_provider *pp; 1036 char arg[16]; 1037 const char *verb, *volname, *levelname, *diskname; 1038 int *nargs, *force; 1039 off_t size, sectorsize, strip, volsize; 1040 intmax_t *sizearg, *striparg; 1041 int numdisks, i, len, level, qual, update; 1042 int error; 1043 1044 sc = md->mdo_softc; 1045 mdi = (struct g_raid_md_nvidia_object *)md; 1046 verb = gctl_get_param(req, "verb", NULL); 1047 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 1048 error = 0; 1049 if (strcmp(verb, "label") == 0) { 1050 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 1246 /* Check if some volume is still open. */ 1247 force = gctl_get_paraml(req, "force", sizeof(*force)); 1248 if (force != NULL && *force == 0 && 1249 g_raid_nopens(sc) != 0) { 1250 gctl_error(req, "Some volume is still open."); 1251 return (-4); 1252 } 1253 1254 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1255 if (disk->d_consumer) 1256 nvidia_meta_erase(disk->d_consumer); 1257 } 1258 g_raid_destroy_node(sc, 0); 1259 return (0); 1260 } 1261 if (strcmp(verb, "remove") == 0 || 1262 strcmp(verb, "fail") == 0) { 1263 if (*nargs < 2) { 1264 gctl_error(req, "Invalid number of arguments."); 1265 return (-1); 1266 } 1267 for (i = 1; i < *nargs; i++) { 1268 snprintf(arg, sizeof(arg), "arg%d", i); 1269 diskname = gctl_get_asciiparam(req, arg); 1270 if (diskname == NULL) { 1271 gctl_error(req, "No disk name (%s).", arg); 1272 error = -2; 1273 break; 1274 } 1275 if (strncmp(diskname, "/dev/", 5) == 0) 1276 diskname += 5; 1277 1278 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1279 if (disk->d_consumer != NULL && 1280 disk->d_consumer->provider != NULL && 1281 strcmp(disk->d_consumer->provider->name, 1282 diskname) == 0) 1283 break; 1284 } 1285 if (disk == NULL) { 1286 gctl_error(req, "Disk '%s' not found.", 1287 diskname); 1288 error = -3; 1289 break; 1290 } 1291 1292 if (strcmp(verb, "fail") == 0) { 1293 g_raid_md_fail_disk_nvidia(md, NULL, disk); 1294 continue; 1295 } 1296 1297 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 1298 1299 /* Erase metadata on deleting disk. */ 1300 nvidia_meta_erase(disk->d_consumer); 1301 1302 /* If disk was assigned, just update statuses. */ 1303 if (pd->pd_disk_pos >= 0) { 1304 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1305 g_raid_kill_consumer(sc, disk->d_consumer); 1306 disk->d_consumer = NULL; 1307 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 1308 g_raid_change_subdisk_state(sd, 1309 G_RAID_SUBDISK_S_NONE); 1310 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED, 1311 G_RAID_EVENT_SUBDISK); 1312 } 1313 } else { 1314 /* Otherwise -- delete. */ 1315 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 1316 g_raid_destroy_disk(disk); 1317 } 1318 } 1319 1320 /* Write updated metadata to remaining disks. */ 1321 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 1322 1323 /* Check if anything left except placeholders. */ 1324 if (g_raid_ndisks(sc, -1) == 1325 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1326 g_raid_destroy_node(sc, 0); 1327 else 1328 g_raid_md_nvidia_refill(sc); 1329 return (error); 1330 } 1331 if (strcmp(verb, "insert") == 0) { 1332 if (*nargs < 2) { 1333 gctl_error(req, "Invalid number of arguments."); 1334 return (-1); 1335 } 1336 update = 0; 1337 for (i = 1; i < *nargs; i++) { 1338 /* Get disk name. */ 1339 snprintf(arg, sizeof(arg), "arg%d", i); 1340 diskname = gctl_get_asciiparam(req, arg); 1341 if (diskname == NULL) { 1342 gctl_error(req, "No disk name (%s).", arg); 1343 error = -3; 1344 break; 1345 } 1346 1347 /* Try to find provider with specified name. */ 1348 g_topology_lock(); 1349 cp = g_raid_open_consumer(sc, diskname); 1350 if (cp == NULL) { 1351 gctl_error(req, "Can't open disk '%s'.", 1352 diskname); 1353 g_topology_unlock(); 1354 error = -4; 1355 break; 1356 } 1357 pp = cp->provider; 1358 1359 pd = malloc(sizeof(*pd), M_MD_NVIDIA, M_WAITOK | M_ZERO); 1360 pd->pd_disk_pos = -3; 1361 pd->pd_disk_size = pp->mediasize; 1362 1363 disk = g_raid_create_disk(sc); 1364 disk->d_consumer = cp; 1365 disk->d_md_data = (void *)pd; 1366 cp->private = disk; 1367 g_topology_unlock(); 1368 1369 g_raid_get_disk_info(disk); 1370 1371 /* Welcome the "new" disk. */ 1372 update += g_raid_md_nvidia_start_disk(disk); 1373 if (disk->d_state != G_RAID_DISK_S_SPARE && 1374 disk->d_state != G_RAID_DISK_S_ACTIVE) { 1375 gctl_error(req, "Disk '%s' doesn't fit.", 1376 diskname); 1377 g_raid_destroy_disk(disk); 1378 error = -8; 1379 break; 1380 } 1381 } 1382 1383 /* Write new metadata if we changed something. */ 1384 if (update) 1385 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 1386 return (error); 1387 } 1388 gctl_error(req, "Command '%s' is not supported.", verb); 1389 return (-100); 1390 } 1391 1392 static int 1393 g_raid_md_write_nvidia(struct g_raid_md_object *md, struct g_raid_volume *tvol, 1394 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1395 { 1396 struct g_raid_softc *sc; 1397 struct g_raid_volume *vol; 1398 struct g_raid_subdisk *sd; 1399 struct g_raid_disk *disk; 1400 struct g_raid_md_nvidia_object *mdi; 1401 struct g_raid_md_nvidia_perdisk *pd; 1402 struct nvidia_raid_conf *meta; 1403 int i, spares; 1404 1405 sc = md->mdo_softc; 1406 mdi = (struct g_raid_md_nvidia_object *)md; 1407 1408 if (sc->sc_stopping == G_RAID_DESTROY_HARD) 1409 return (0); 1410 1411 /* There is only one volume. */ 1412 vol = TAILQ_FIRST(&sc->sc_volumes); 1413 1414 /* Fill global fields. */ 1415 meta = malloc(sizeof(*meta), M_MD_NVIDIA, M_WAITOK | M_ZERO); 1416 if (mdi->mdio_meta) 1417 memcpy(meta, mdi->mdio_meta, sizeof(*meta)); 1418 memcpy(meta->nvidia_id, NVIDIA_MAGIC, sizeof(NVIDIA_MAGIC) - 1); 1419 meta->config_size = 30; 1420 meta->version = 0x0064; 1421 meta->total_sectors = vol->v_mediasize / vol->v_sectorsize; 1422 meta->sector_size = vol->v_sectorsize; 1423 nvidia_meta_put_name(meta, vol->v_name); 1424 meta->magic_0 = NVIDIA_MAGIC0; 1425 memcpy(&meta->volume_id, &mdi->mdio_volume_id, 16); 1426 meta->state = NVIDIA_S_IDLE; 1427 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) 1428 meta->array_width = 1; 1429 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) 1430 meta->array_width = vol->v_disks_count / 2; 1431 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID5) 1432 meta->array_width = vol->v_disks_count - 1; 1433 else 1434 meta->array_width = vol->v_disks_count; 1435 meta->total_disks = vol->v_disks_count; 1436 meta->orig_array_width = meta->array_width; 1437 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID0) 1438 meta->type = NVIDIA_T_RAID0; 1439 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) 1440 meta->type = NVIDIA_T_RAID1; 1441 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) 1442 meta->type = NVIDIA_T_RAID01; 1443 else if (vol->v_raid_level == G_RAID_VOLUME_RL_CONCAT || 1444 vol->v_raid_level == G_RAID_VOLUME_RL_SINGLE) 1445 meta->type = NVIDIA_T_CONCAT; 1446 else if (vol->v_raid_level_qualifier == G_RAID_VOLUME_RLQ_R5LA) 1447 meta->type = NVIDIA_T_RAID5; 1448 else 1449 meta->type = NVIDIA_T_RAID5_SYM; 1450 meta->strip_sectors = vol->v_strip_size / vol->v_sectorsize; 1451 meta->strip_bytes = vol->v_strip_size; 1452 meta->strip_shift = ffs(meta->strip_sectors) - 1; 1453 meta->strip_mask = meta->strip_sectors - 1; 1454 meta->stripe_sectors = meta->strip_sectors * meta->orig_array_width; 1455 meta->stripe_bytes = meta->stripe_sectors * vol->v_sectorsize; 1456 meta->rebuild_lba = 0; 1457 meta->orig_type = meta->type; 1458 meta->orig_total_sectors = meta->total_sectors; 1459 meta->status = 0; 1460 1461 for (i = 0; i < vol->v_disks_count; i++) { 1462 sd = &vol->v_subdisks[i]; 1463 if ((sd->sd_state == G_RAID_SUBDISK_S_STALE || 1464 sd->sd_state == G_RAID_SUBDISK_S_RESYNC || 1465 vol->v_dirty) && 1466 meta->state != NVIDIA_S_REBUILD) 1467 meta->state = NVIDIA_S_SYNC; 1468 else if (sd->sd_state == G_RAID_SUBDISK_S_NEW || 1469 sd->sd_state == G_RAID_SUBDISK_S_REBUILD) 1470 meta->state = NVIDIA_S_REBUILD; 1471 } 1472 1473 /* We are done. Print meta data and store them to disks. */ 1474 if (mdi->mdio_meta != NULL) 1475 free(mdi->mdio_meta, M_MD_NVIDIA); 1476 mdi->mdio_meta = meta; 1477 spares = 0; 1478 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1479 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 1480 if (disk->d_state != G_RAID_DISK_S_ACTIVE && 1481 disk->d_state != G_RAID_DISK_S_SPARE) 1482 continue; 1483 if (pd->pd_meta != NULL) { 1484 free(pd->pd_meta, M_MD_NVIDIA); 1485 pd->pd_meta = NULL; 1486 } 1487 pd->pd_meta = nvidia_meta_copy(meta); 1488 if ((sd = TAILQ_FIRST(&disk->d_subdisks)) != NULL) { 1489 /* For RAID0+1 we need to translate order. */ 1490 pd->pd_meta->disk_number = 1491 nvidia_meta_translate_disk(meta, sd->sd_pos); 1492 if (sd->sd_state != G_RAID_SUBDISK_S_ACTIVE) { 1493 pd->pd_meta->disk_status = 0x100; 1494 pd->pd_meta->rebuild_lba = 1495 sd->sd_rebuild_pos / vol->v_sectorsize * 1496 meta->array_width; 1497 } 1498 } else 1499 pd->pd_meta->disk_number = meta->total_disks + spares++; 1500 G_RAID_DEBUG(1, "Writing NVIDIA metadata to %s", 1501 g_raid_get_diskname(disk)); 1502 g_raid_md_nvidia_print(pd->pd_meta); 1503 nvidia_meta_write(disk->d_consumer, pd->pd_meta); 1504 } 1505 return (0); 1506 } 1507 1508 static int 1509 g_raid_md_fail_disk_nvidia(struct g_raid_md_object *md, 1510 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1511 { 1512 struct g_raid_softc *sc; 1513 struct g_raid_md_nvidia_perdisk *pd; 1514 struct g_raid_subdisk *sd; 1515 1516 sc = md->mdo_softc; 1517 pd = (struct g_raid_md_nvidia_perdisk *)tdisk->d_md_data; 1518 1519 /* We can't fail disk that is not a part of array now. */ 1520 if (pd->pd_disk_pos < 0) 1521 return (-1); 1522 1523 /* Erase metadata to prevent disks's later resurrection. */ 1524 if (tdisk->d_consumer) 1525 nvidia_meta_erase(tdisk->d_consumer); 1526 1527 /* Change states. */ 1528 g_raid_change_disk_state(tdisk, G_RAID_DISK_S_FAILED); 1529 TAILQ_FOREACH(sd, &tdisk->d_subdisks, sd_next) { 1530 g_raid_change_subdisk_state(sd, 1531 G_RAID_SUBDISK_S_FAILED); 1532 g_raid_event_send(sd, G_RAID_SUBDISK_E_FAILED, 1533 G_RAID_EVENT_SUBDISK); 1534 } 1535 1536 /* Write updated metadata to remaining disks. */ 1537 g_raid_md_write_nvidia(md, NULL, NULL, tdisk); 1538 1539 /* Check if anything left except placeholders. */ 1540 if (g_raid_ndisks(sc, -1) == 1541 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1542 g_raid_destroy_node(sc, 0); 1543 else 1544 g_raid_md_nvidia_refill(sc); 1545 return (0); 1546 } 1547 1548 static int 1549 g_raid_md_free_disk_nvidia(struct g_raid_md_object *md, 1550 struct g_raid_disk *disk) 1551 { 1552 struct g_raid_md_nvidia_perdisk *pd; 1553 1554 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 1555 if (pd->pd_meta != NULL) { 1556 free(pd->pd_meta, M_MD_NVIDIA); 1557 pd->pd_meta = NULL; 1558 } 1559 free(pd, M_MD_NVIDIA); 1560 disk->d_md_data = NULL; 1561 return (0); 1562 } 1563 1564 static int 1565 g_raid_md_free_nvidia(struct g_raid_md_object *md) 1566 { 1567 struct g_raid_md_nvidia_object *mdi; 1568 1569 mdi = (struct g_raid_md_nvidia_object *)md; 1570 if (!mdi->mdio_started) { 1571 mdi->mdio_started = 0; 1572 callout_stop(&mdi->mdio_start_co); 1573 G_RAID_DEBUG1(1, md->mdo_softc, 1574 "root_mount_rel %p", mdi->mdio_rootmount); 1575 root_mount_rel(mdi->mdio_rootmount); 1576 mdi->mdio_rootmount = NULL; 1577 } 1578 if (mdi->mdio_meta != NULL) { 1579 free(mdi->mdio_meta, M_MD_NVIDIA); 1580 mdi->mdio_meta = NULL; 1581 } 1582 return (0); 1583 } 1584 1585 G_RAID_MD_DECLARE(nvidia, "NVIDIA"); 1586