1 /*- 2 * Copyright (c) 2011 Alexander Motin <mav@FreeBSD.org> 3 * Copyright (c) 2000 - 2008 Søren Schmidt <sos@FreeBSD.org> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 __FBSDID("$FreeBSD$"); 30 31 #include <sys/param.h> 32 #include <sys/bio.h> 33 #include <sys/endian.h> 34 #include <sys/kernel.h> 35 #include <sys/kobj.h> 36 #include <sys/limits.h> 37 #include <sys/lock.h> 38 #include <sys/malloc.h> 39 #include <sys/mutex.h> 40 #include <sys/systm.h> 41 #include <sys/taskqueue.h> 42 #include <geom/geom.h> 43 #include "geom/raid/g_raid.h" 44 #include "g_raid_md_if.h" 45 46 static MALLOC_DEFINE(M_MD_NVIDIA, "md_nvidia_data", "GEOM_RAID NVIDIA metadata"); 47 48 struct nvidia_raid_conf { 49 uint8_t nvidia_id[8]; 50 #define NVIDIA_MAGIC "NVIDIA " 51 52 uint32_t config_size; 53 uint32_t checksum; 54 uint16_t version; 55 uint8_t disk_number; 56 uint8_t dummy_0; 57 uint32_t total_sectors; 58 uint32_t sector_size; 59 uint8_t name[16]; 60 uint8_t revision[4]; 61 uint32_t disk_status; 62 63 uint32_t magic_0; 64 #define NVIDIA_MAGIC0 0x00640044 65 66 uint64_t volume_id[2]; 67 uint8_t state; 68 #define NVIDIA_S_IDLE 0 69 #define NVIDIA_S_INIT 2 70 #define NVIDIA_S_REBUILD 3 71 #define NVIDIA_S_UPGRADE 4 72 #define NVIDIA_S_SYNC 5 73 uint8_t array_width; 74 uint8_t total_disks; 75 uint8_t orig_array_width; 76 uint16_t type; 77 #define NVIDIA_T_RAID0 0x0080 78 #define NVIDIA_T_RAID1 0x0081 79 #define NVIDIA_T_RAID3 0x0083 80 #define NVIDIA_T_RAID5 0x0085 /* RLQ = 00/02? */ 81 #define NVIDIA_T_RAID5_SYM 0x0095 /* RLQ = 03 */ 82 #define NVIDIA_T_RAID10 0x008a 83 #define NVIDIA_T_RAID01 0x8180 84 #define NVIDIA_T_CONCAT 0x00ff 85 86 uint16_t dummy_3; 87 uint32_t strip_sectors; 88 uint32_t strip_bytes; 89 uint32_t strip_shift; 90 uint32_t strip_mask; 91 uint32_t stripe_sectors; 92 uint32_t stripe_bytes; 93 uint32_t rebuild_lba; 94 uint32_t orig_type; 95 uint32_t orig_total_sectors; 96 uint32_t status; 97 #define NVIDIA_S_BOOTABLE 0x00000001 98 #define NVIDIA_S_DEGRADED 0x00000002 99 100 uint32_t filler[98]; 101 } __packed; 102 103 struct g_raid_md_nvidia_perdisk { 104 struct nvidia_raid_conf *pd_meta; 105 int pd_disk_pos; 106 off_t pd_disk_size; 107 }; 108 109 struct g_raid_md_nvidia_object { 110 struct g_raid_md_object mdio_base; 111 uint64_t mdio_volume_id[2]; 112 struct nvidia_raid_conf *mdio_meta; 113 struct callout mdio_start_co; /* STARTING state timer. */ 114 int mdio_total_disks; 115 int mdio_disks_present; 116 int mdio_started; 117 int mdio_incomplete; 118 struct root_hold_token *mdio_rootmount; /* Root mount delay token. */ 119 }; 120 121 static g_raid_md_create_t g_raid_md_create_nvidia; 122 static g_raid_md_taste_t g_raid_md_taste_nvidia; 123 static g_raid_md_event_t g_raid_md_event_nvidia; 124 static g_raid_md_ctl_t g_raid_md_ctl_nvidia; 125 static g_raid_md_write_t g_raid_md_write_nvidia; 126 static g_raid_md_fail_disk_t g_raid_md_fail_disk_nvidia; 127 static g_raid_md_free_disk_t g_raid_md_free_disk_nvidia; 128 static g_raid_md_free_t g_raid_md_free_nvidia; 129 130 static kobj_method_t g_raid_md_nvidia_methods[] = { 131 KOBJMETHOD(g_raid_md_create, g_raid_md_create_nvidia), 132 KOBJMETHOD(g_raid_md_taste, g_raid_md_taste_nvidia), 133 KOBJMETHOD(g_raid_md_event, g_raid_md_event_nvidia), 134 KOBJMETHOD(g_raid_md_ctl, g_raid_md_ctl_nvidia), 135 KOBJMETHOD(g_raid_md_write, g_raid_md_write_nvidia), 136 KOBJMETHOD(g_raid_md_fail_disk, g_raid_md_fail_disk_nvidia), 137 KOBJMETHOD(g_raid_md_free_disk, g_raid_md_free_disk_nvidia), 138 KOBJMETHOD(g_raid_md_free, g_raid_md_free_nvidia), 139 { 0, 0 } 140 }; 141 142 static struct g_raid_md_class g_raid_md_nvidia_class = { 143 "NVIDIA", 144 g_raid_md_nvidia_methods, 145 sizeof(struct g_raid_md_nvidia_object), 146 .mdc_priority = 100 147 }; 148 149 static int NVIDIANodeID = 1; 150 151 static void 152 g_raid_md_nvidia_print(struct nvidia_raid_conf *meta) 153 { 154 155 if (g_raid_debug < 1) 156 return; 157 158 printf("********* ATA NVIDIA RAID Metadata *********\n"); 159 printf("nvidia_id <%.8s>\n", meta->nvidia_id); 160 printf("config_size %u\n", meta->config_size); 161 printf("checksum 0x%08x\n", meta->checksum); 162 printf("version 0x%04x\n", meta->version); 163 printf("disk_number %d\n", meta->disk_number); 164 printf("dummy_0 0x%02x\n", meta->dummy_0); 165 printf("total_sectors %u\n", meta->total_sectors); 166 printf("sector_size %u\n", meta->sector_size); 167 printf("name <%.16s>\n", meta->name); 168 printf("revision 0x%02x%02x%02x%02x\n", 169 meta->revision[0], meta->revision[1], 170 meta->revision[2], meta->revision[3]); 171 printf("disk_status 0x%08x\n", meta->disk_status); 172 printf("magic_0 0x%08x\n", meta->magic_0); 173 printf("volume_id 0x%016jx%016jx\n", 174 meta->volume_id[1], meta->volume_id[0]); 175 printf("state 0x%02x\n", meta->state); 176 printf("array_width %u\n", meta->array_width); 177 printf("total_disks %u\n", meta->total_disks); 178 printf("orig_array_width %u\n", meta->orig_array_width); 179 printf("type 0x%04x\n", meta->type); 180 printf("dummy_3 0x%04x\n", meta->dummy_3); 181 printf("strip_sectors %u\n", meta->strip_sectors); 182 printf("strip_bytes %u\n", meta->strip_bytes); 183 printf("strip_shift %u\n", meta->strip_shift); 184 printf("strip_mask 0x%08x\n", meta->strip_mask); 185 printf("stripe_sectors %u\n", meta->stripe_sectors); 186 printf("stripe_bytes %u\n", meta->stripe_bytes); 187 printf("rebuild_lba %u\n", meta->rebuild_lba); 188 printf("orig_type 0x%04x\n", meta->orig_type); 189 printf("orig_total_sectors %u\n", meta->orig_total_sectors); 190 printf("status 0x%08x\n", meta->status); 191 printf("=================================================\n"); 192 } 193 194 static struct nvidia_raid_conf * 195 nvidia_meta_copy(struct nvidia_raid_conf *meta) 196 { 197 struct nvidia_raid_conf *nmeta; 198 199 nmeta = malloc(sizeof(*meta), M_MD_NVIDIA, M_WAITOK); 200 memcpy(nmeta, meta, sizeof(*meta)); 201 return (nmeta); 202 } 203 204 static int 205 nvidia_meta_translate_disk(struct nvidia_raid_conf *meta, int md_disk_pos) 206 { 207 int disk_pos; 208 209 if (md_disk_pos >= 0 && meta->type == NVIDIA_T_RAID01) { 210 disk_pos = (md_disk_pos / meta->array_width) + 211 (md_disk_pos % meta->array_width) * meta->array_width; 212 } else 213 disk_pos = md_disk_pos; 214 return (disk_pos); 215 } 216 217 static void 218 nvidia_meta_get_name(struct nvidia_raid_conf *meta, char *buf) 219 { 220 int i; 221 222 strncpy(buf, meta->name, 16); 223 buf[16] = 0; 224 for (i = 15; i >= 0; i--) { 225 if (buf[i] > 0x20) 226 break; 227 buf[i] = 0; 228 } 229 } 230 231 static void 232 nvidia_meta_put_name(struct nvidia_raid_conf *meta, char *buf) 233 { 234 235 memset(meta->name, 0x20, 16); 236 memcpy(meta->name, buf, MIN(strlen(buf), 16)); 237 } 238 239 static struct nvidia_raid_conf * 240 nvidia_meta_read(struct g_consumer *cp) 241 { 242 struct g_provider *pp; 243 struct nvidia_raid_conf *meta; 244 char *buf; 245 int error, i; 246 uint32_t checksum, *ptr; 247 248 pp = cp->provider; 249 250 /* Read the anchor sector. */ 251 buf = g_read_data(cp, 252 pp->mediasize - 2 * pp->sectorsize, pp->sectorsize, &error); 253 if (buf == NULL) { 254 G_RAID_DEBUG(1, "Cannot read metadata from %s (error=%d).", 255 pp->name, error); 256 return (NULL); 257 } 258 meta = malloc(sizeof(*meta), M_MD_NVIDIA, M_WAITOK); 259 memcpy(meta, buf, min(sizeof(*meta), pp->sectorsize)); 260 g_free(buf); 261 262 /* Check if this is an NVIDIA RAID struct */ 263 if (strncmp(meta->nvidia_id, NVIDIA_MAGIC, strlen(NVIDIA_MAGIC))) { 264 G_RAID_DEBUG(1, "NVIDIA signature check failed on %s", pp->name); 265 free(meta, M_MD_NVIDIA); 266 return (NULL); 267 } 268 if (meta->config_size > 128 || 269 meta->config_size < 30) { 270 G_RAID_DEBUG(1, "NVIDIA metadata size looks wrong: %d", 271 meta->config_size); 272 free(meta, M_MD_NVIDIA); 273 return (NULL); 274 } 275 276 /* Check metadata checksum. */ 277 for (checksum = 0, ptr = (uint32_t *)meta, 278 i = 0; i < meta->config_size; i++) 279 checksum += *ptr++; 280 if (checksum != 0) { 281 G_RAID_DEBUG(1, "NVIDIA checksum check failed on %s", pp->name); 282 free(meta, M_MD_NVIDIA); 283 return (NULL); 284 } 285 286 /* Check volume state. */ 287 if (meta->state != NVIDIA_S_IDLE && meta->state != NVIDIA_S_INIT && 288 meta->state != NVIDIA_S_REBUILD && meta->state != NVIDIA_S_SYNC) { 289 G_RAID_DEBUG(1, "NVIDIA unknown state on %s (0x%02x)", 290 pp->name, meta->state); 291 free(meta, M_MD_NVIDIA); 292 return (NULL); 293 } 294 295 /* Check raid type. */ 296 if (meta->type != NVIDIA_T_RAID0 && meta->type != NVIDIA_T_RAID1 && 297 meta->type != NVIDIA_T_RAID3 && meta->type != NVIDIA_T_RAID5 && 298 meta->type != NVIDIA_T_RAID5_SYM && 299 meta->type != NVIDIA_T_RAID01 && meta->type != NVIDIA_T_CONCAT) { 300 G_RAID_DEBUG(1, "NVIDIA unknown RAID level on %s (0x%02x)", 301 pp->name, meta->type); 302 free(meta, M_MD_NVIDIA); 303 return (NULL); 304 } 305 306 return (meta); 307 } 308 309 static int 310 nvidia_meta_write(struct g_consumer *cp, struct nvidia_raid_conf *meta) 311 { 312 struct g_provider *pp; 313 char *buf; 314 int error, i; 315 uint32_t checksum, *ptr; 316 317 pp = cp->provider; 318 319 /* Recalculate checksum for case if metadata were changed. */ 320 meta->checksum = 0; 321 for (checksum = 0, ptr = (uint32_t *)meta, 322 i = 0; i < meta->config_size; i++) 323 checksum += *ptr++; 324 meta->checksum -= checksum; 325 326 /* Create and fill buffer. */ 327 buf = malloc(pp->sectorsize, M_MD_NVIDIA, M_WAITOK | M_ZERO); 328 memcpy(buf, meta, sizeof(*meta)); 329 330 /* Write metadata. */ 331 error = g_write_data(cp, 332 pp->mediasize - 2 * pp->sectorsize, buf, pp->sectorsize); 333 if (error != 0) { 334 G_RAID_DEBUG(1, "Cannot write metadata to %s (error=%d).", 335 pp->name, error); 336 } 337 338 free(buf, M_MD_NVIDIA); 339 return (error); 340 } 341 342 static int 343 nvidia_meta_erase(struct g_consumer *cp) 344 { 345 struct g_provider *pp; 346 char *buf; 347 int error; 348 349 pp = cp->provider; 350 buf = malloc(pp->sectorsize, M_MD_NVIDIA, M_WAITOK | M_ZERO); 351 error = g_write_data(cp, 352 pp->mediasize - 2 * pp->sectorsize, buf, pp->sectorsize); 353 if (error != 0) { 354 G_RAID_DEBUG(1, "Cannot erase metadata on %s (error=%d).", 355 pp->name, error); 356 } 357 free(buf, M_MD_NVIDIA); 358 return (error); 359 } 360 361 static struct g_raid_disk * 362 g_raid_md_nvidia_get_disk(struct g_raid_softc *sc, int id) 363 { 364 struct g_raid_disk *disk; 365 struct g_raid_md_nvidia_perdisk *pd; 366 367 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 368 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 369 if (pd->pd_disk_pos == id) 370 break; 371 } 372 return (disk); 373 } 374 375 static int 376 g_raid_md_nvidia_supported(int level, int qual, int disks, int force) 377 { 378 379 switch (level) { 380 case G_RAID_VOLUME_RL_RAID0: 381 if (disks < 1) 382 return (0); 383 if (!force && (disks < 2 || disks > 6)) 384 return (0); 385 break; 386 case G_RAID_VOLUME_RL_RAID1: 387 if (disks < 1) 388 return (0); 389 if (!force && (disks != 2)) 390 return (0); 391 break; 392 case G_RAID_VOLUME_RL_RAID1E: 393 if (disks < 2) 394 return (0); 395 if (disks % 2 != 0) 396 return (0); 397 if (!force && (disks < 4)) 398 return (0); 399 break; 400 case G_RAID_VOLUME_RL_SINGLE: 401 if (disks != 1) 402 return (0); 403 break; 404 case G_RAID_VOLUME_RL_CONCAT: 405 if (disks < 2) 406 return (0); 407 break; 408 case G_RAID_VOLUME_RL_RAID5: 409 if (disks < 3) 410 return (0); 411 if (qual != G_RAID_VOLUME_RLQ_R5LA && 412 qual != G_RAID_VOLUME_RLQ_R5LS) 413 return (0); 414 break; 415 default: 416 return (0); 417 } 418 if (level != G_RAID_VOLUME_RL_RAID5 && qual != G_RAID_VOLUME_RLQ_NONE) 419 return (0); 420 return (1); 421 } 422 423 static int 424 g_raid_md_nvidia_start_disk(struct g_raid_disk *disk) 425 { 426 struct g_raid_softc *sc; 427 struct g_raid_subdisk *sd, *tmpsd; 428 struct g_raid_disk *olddisk, *tmpdisk; 429 struct g_raid_md_object *md; 430 struct g_raid_md_nvidia_object *mdi; 431 struct g_raid_md_nvidia_perdisk *pd, *oldpd; 432 struct nvidia_raid_conf *meta; 433 int disk_pos, resurrection = 0; 434 435 sc = disk->d_softc; 436 md = sc->sc_md; 437 mdi = (struct g_raid_md_nvidia_object *)md; 438 meta = mdi->mdio_meta; 439 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 440 olddisk = NULL; 441 442 /* Find disk position in metadata by it's serial. */ 443 if (pd->pd_meta != NULL) { 444 disk_pos = pd->pd_meta->disk_number; 445 if (disk_pos >= meta->total_disks || mdi->mdio_started) 446 disk_pos = -3; 447 } else 448 disk_pos = -3; 449 /* For RAID0+1 we need to translate order. */ 450 disk_pos = nvidia_meta_translate_disk(meta, disk_pos); 451 if (disk_pos < 0) { 452 G_RAID_DEBUG1(1, sc, "Unknown, probably new or stale disk"); 453 /* If we are in the start process, that's all for now. */ 454 if (!mdi->mdio_started) 455 goto nofit; 456 /* 457 * If we have already started - try to get use of the disk. 458 * Try to replace OFFLINE disks first, then FAILED. 459 */ 460 TAILQ_FOREACH(tmpdisk, &sc->sc_disks, d_next) { 461 if (tmpdisk->d_state != G_RAID_DISK_S_OFFLINE && 462 tmpdisk->d_state != G_RAID_DISK_S_FAILED) 463 continue; 464 /* Make sure this disk is big enough. */ 465 TAILQ_FOREACH(sd, &tmpdisk->d_subdisks, sd_next) { 466 if (sd->sd_offset + sd->sd_size + 2 * 512 > 467 pd->pd_disk_size) { 468 G_RAID_DEBUG1(1, sc, 469 "Disk too small (%ju < %ju)", 470 pd->pd_disk_size, 471 sd->sd_offset + sd->sd_size + 512); 472 break; 473 } 474 } 475 if (sd != NULL) 476 continue; 477 if (tmpdisk->d_state == G_RAID_DISK_S_OFFLINE) { 478 olddisk = tmpdisk; 479 break; 480 } else if (olddisk == NULL) 481 olddisk = tmpdisk; 482 } 483 if (olddisk == NULL) { 484 nofit: 485 g_raid_change_disk_state(disk, G_RAID_DISK_S_SPARE); 486 return (1); 487 } 488 oldpd = (struct g_raid_md_nvidia_perdisk *)olddisk->d_md_data; 489 disk_pos = oldpd->pd_disk_pos; 490 resurrection = 1; 491 } 492 493 if (olddisk == NULL) { 494 /* Find placeholder by position. */ 495 olddisk = g_raid_md_nvidia_get_disk(sc, disk_pos); 496 if (olddisk == NULL) 497 panic("No disk at position %d!", disk_pos); 498 if (olddisk->d_state != G_RAID_DISK_S_OFFLINE) { 499 G_RAID_DEBUG1(1, sc, "More then one disk for pos %d", 500 disk_pos); 501 g_raid_change_disk_state(disk, G_RAID_DISK_S_STALE); 502 return (0); 503 } 504 oldpd = (struct g_raid_md_nvidia_perdisk *)olddisk->d_md_data; 505 } 506 507 /* Replace failed disk or placeholder with new disk. */ 508 TAILQ_FOREACH_SAFE(sd, &olddisk->d_subdisks, sd_next, tmpsd) { 509 TAILQ_REMOVE(&olddisk->d_subdisks, sd, sd_next); 510 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 511 sd->sd_disk = disk; 512 } 513 oldpd->pd_disk_pos = -2; 514 pd->pd_disk_pos = disk_pos; 515 516 /* If it was placeholder -- destroy it. */ 517 if (olddisk->d_state == G_RAID_DISK_S_OFFLINE) { 518 g_raid_destroy_disk(olddisk); 519 } else { 520 /* Otherwise, make it STALE_FAILED. */ 521 g_raid_change_disk_state(olddisk, G_RAID_DISK_S_STALE_FAILED); 522 } 523 524 /* Welcome the new disk. */ 525 if (resurrection) 526 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE); 527 else// if (pd->pd_meta->disk_status == NVIDIA_S_CURRENT || 528 //pd->pd_meta->disk_status == NVIDIA_S_REBUILD) 529 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE); 530 // else 531 // g_raid_change_disk_state(disk, G_RAID_DISK_S_FAILED); 532 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 533 534 /* 535 * Different disks may have different sizes, 536 * in concat mode. Update from real disk size. 537 */ 538 if (meta->type == NVIDIA_T_CONCAT) 539 sd->sd_size = pd->pd_disk_size - 0x800 * 512; 540 541 if (resurrection) { 542 /* New or ex-spare disk. */ 543 g_raid_change_subdisk_state(sd, 544 G_RAID_SUBDISK_S_NEW); 545 } else if (meta->state == NVIDIA_S_REBUILD && 546 (pd->pd_meta->disk_status & 0x100)) { 547 /* Rebuilding disk. */ 548 g_raid_change_subdisk_state(sd, 549 G_RAID_SUBDISK_S_REBUILD); 550 sd->sd_rebuild_pos = (off_t)pd->pd_meta->rebuild_lba / 551 meta->array_width * pd->pd_meta->sector_size; 552 } else if (meta->state == NVIDIA_S_SYNC) { 553 /* Resyncing/dirty disk. */ 554 g_raid_change_subdisk_state(sd, 555 G_RAID_SUBDISK_S_RESYNC); 556 sd->sd_rebuild_pos = (off_t)pd->pd_meta->rebuild_lba / 557 meta->array_width * pd->pd_meta->sector_size; 558 } else { 559 /* Up to date disk. */ 560 g_raid_change_subdisk_state(sd, 561 G_RAID_SUBDISK_S_ACTIVE); 562 } 563 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 564 G_RAID_EVENT_SUBDISK); 565 } 566 567 /* Update status of our need for spare. */ 568 if (mdi->mdio_started) { 569 mdi->mdio_incomplete = 570 (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < 571 mdi->mdio_total_disks); 572 } 573 574 return (resurrection); 575 } 576 577 static void 578 g_disk_md_nvidia_retaste(void *arg, int pending) 579 { 580 581 G_RAID_DEBUG(1, "Array is not complete, trying to retaste."); 582 g_retaste(&g_raid_class); 583 free(arg, M_MD_NVIDIA); 584 } 585 586 static void 587 g_raid_md_nvidia_refill(struct g_raid_softc *sc) 588 { 589 struct g_raid_md_object *md; 590 struct g_raid_md_nvidia_object *mdi; 591 struct g_raid_disk *disk; 592 struct task *task; 593 int update, na; 594 595 md = sc->sc_md; 596 mdi = (struct g_raid_md_nvidia_object *)md; 597 update = 0; 598 do { 599 /* Make sure we miss anything. */ 600 na = g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE); 601 if (na == mdi->mdio_total_disks) 602 break; 603 604 G_RAID_DEBUG1(1, md->mdo_softc, 605 "Array is not complete (%d of %d), " 606 "trying to refill.", na, mdi->mdio_total_disks); 607 608 /* Try to get use some of STALE disks. */ 609 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 610 if (disk->d_state == G_RAID_DISK_S_STALE) { 611 update += g_raid_md_nvidia_start_disk(disk); 612 if (disk->d_state == G_RAID_DISK_S_ACTIVE) 613 break; 614 } 615 } 616 if (disk != NULL) 617 continue; 618 619 /* Try to get use some of SPARE disks. */ 620 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 621 if (disk->d_state == G_RAID_DISK_S_SPARE) { 622 update += g_raid_md_nvidia_start_disk(disk); 623 if (disk->d_state == G_RAID_DISK_S_ACTIVE) 624 break; 625 } 626 } 627 } while (disk != NULL); 628 629 /* Write new metadata if we changed something. */ 630 if (update) 631 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 632 633 /* Update status of our need for spare. */ 634 mdi->mdio_incomplete = (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < 635 mdi->mdio_total_disks); 636 637 /* Request retaste hoping to find spare. */ 638 if (mdi->mdio_incomplete) { 639 task = malloc(sizeof(struct task), 640 M_MD_NVIDIA, M_WAITOK | M_ZERO); 641 TASK_INIT(task, 0, g_disk_md_nvidia_retaste, task); 642 taskqueue_enqueue(taskqueue_swi, task); 643 } 644 } 645 646 static void 647 g_raid_md_nvidia_start(struct g_raid_softc *sc) 648 { 649 struct g_raid_md_object *md; 650 struct g_raid_md_nvidia_object *mdi; 651 struct g_raid_md_nvidia_perdisk *pd; 652 struct nvidia_raid_conf *meta; 653 struct g_raid_volume *vol; 654 struct g_raid_subdisk *sd; 655 struct g_raid_disk *disk; 656 off_t size; 657 int j, disk_pos; 658 char buf[17]; 659 660 md = sc->sc_md; 661 mdi = (struct g_raid_md_nvidia_object *)md; 662 meta = mdi->mdio_meta; 663 664 /* Create volumes and subdisks. */ 665 nvidia_meta_get_name(meta, buf); 666 vol = g_raid_create_volume(sc, buf, -1); 667 vol->v_mediasize = (off_t)meta->total_sectors * 512; 668 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_NONE; 669 if (meta->type == NVIDIA_T_RAID0) { 670 vol->v_raid_level = G_RAID_VOLUME_RL_RAID0; 671 size = vol->v_mediasize / mdi->mdio_total_disks; 672 } else if (meta->type == NVIDIA_T_RAID1) { 673 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1; 674 size = vol->v_mediasize; 675 } else if (meta->type == NVIDIA_T_RAID01) { 676 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1E; 677 size = vol->v_mediasize / (mdi->mdio_total_disks / 2); 678 } else if (meta->type == NVIDIA_T_CONCAT) { 679 if (mdi->mdio_total_disks == 1) 680 vol->v_raid_level = G_RAID_VOLUME_RL_SINGLE; 681 else 682 vol->v_raid_level = G_RAID_VOLUME_RL_CONCAT; 683 size = 0; 684 } else if (meta->type == NVIDIA_T_RAID5) { 685 vol->v_raid_level = G_RAID_VOLUME_RL_RAID5; 686 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_R5LA; 687 size = vol->v_mediasize / (mdi->mdio_total_disks - 1); 688 } else if (meta->type == NVIDIA_T_RAID5_SYM) { 689 vol->v_raid_level = G_RAID_VOLUME_RL_RAID5; 690 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_R5LS; 691 size = vol->v_mediasize / (mdi->mdio_total_disks - 1); 692 } else { 693 vol->v_raid_level = G_RAID_VOLUME_RL_UNKNOWN; 694 size = 0; 695 } 696 vol->v_strip_size = meta->strip_sectors * 512; //ZZZ 697 vol->v_disks_count = mdi->mdio_total_disks; 698 vol->v_sectorsize = 512; //ZZZ 699 for (j = 0; j < vol->v_disks_count; j++) { 700 sd = &vol->v_subdisks[j]; 701 sd->sd_offset = 0; 702 sd->sd_size = size; 703 } 704 g_raid_start_volume(vol); 705 706 /* Create disk placeholders to store data for later writing. */ 707 for (disk_pos = 0; disk_pos < mdi->mdio_total_disks; disk_pos++) { 708 pd = malloc(sizeof(*pd), M_MD_NVIDIA, M_WAITOK | M_ZERO); 709 pd->pd_disk_pos = disk_pos; 710 disk = g_raid_create_disk(sc); 711 disk->d_md_data = (void *)pd; 712 disk->d_state = G_RAID_DISK_S_OFFLINE; 713 sd = &vol->v_subdisks[disk_pos]; 714 sd->sd_disk = disk; 715 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 716 } 717 718 /* Make all disks found till the moment take their places. */ 719 do { 720 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 721 if (disk->d_state == G_RAID_DISK_S_NONE) { 722 g_raid_md_nvidia_start_disk(disk); 723 break; 724 } 725 } 726 } while (disk != NULL); 727 728 mdi->mdio_started = 1; 729 G_RAID_DEBUG1(0, sc, "Array started."); 730 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 731 732 /* Pickup any STALE/SPARE disks to refill array if needed. */ 733 g_raid_md_nvidia_refill(sc); 734 735 g_raid_event_send(vol, G_RAID_VOLUME_E_START, G_RAID_EVENT_VOLUME); 736 737 callout_stop(&mdi->mdio_start_co); 738 G_RAID_DEBUG1(1, sc, "root_mount_rel %p", mdi->mdio_rootmount); 739 root_mount_rel(mdi->mdio_rootmount); 740 mdi->mdio_rootmount = NULL; 741 } 742 743 static void 744 g_raid_md_nvidia_new_disk(struct g_raid_disk *disk) 745 { 746 struct g_raid_softc *sc; 747 struct g_raid_md_object *md; 748 struct g_raid_md_nvidia_object *mdi; 749 struct nvidia_raid_conf *pdmeta; 750 struct g_raid_md_nvidia_perdisk *pd; 751 752 sc = disk->d_softc; 753 md = sc->sc_md; 754 mdi = (struct g_raid_md_nvidia_object *)md; 755 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 756 pdmeta = pd->pd_meta; 757 758 if (mdi->mdio_started) { 759 if (g_raid_md_nvidia_start_disk(disk)) 760 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 761 } else { 762 if (mdi->mdio_meta == NULL || 763 mdi->mdio_meta->disk_number >= mdi->mdio_meta->total_disks) { 764 G_RAID_DEBUG1(1, sc, "Newer disk"); 765 if (mdi->mdio_meta != NULL) 766 free(mdi->mdio_meta, M_MD_NVIDIA); 767 mdi->mdio_meta = nvidia_meta_copy(pdmeta); 768 mdi->mdio_total_disks = pdmeta->total_disks; 769 mdi->mdio_disks_present = 1; 770 } else if (pdmeta->disk_number < mdi->mdio_meta->total_disks) { 771 mdi->mdio_disks_present++; 772 G_RAID_DEBUG1(1, sc, "Matching disk (%d of %d up)", 773 mdi->mdio_disks_present, 774 mdi->mdio_total_disks); 775 } else 776 G_RAID_DEBUG1(1, sc, "Spare disk"); 777 778 /* If we collected all needed disks - start array. */ 779 if (mdi->mdio_disks_present == mdi->mdio_total_disks) 780 g_raid_md_nvidia_start(sc); 781 } 782 } 783 784 static void 785 g_raid_nvidia_go(void *arg) 786 { 787 struct g_raid_softc *sc; 788 struct g_raid_md_object *md; 789 struct g_raid_md_nvidia_object *mdi; 790 791 sc = arg; 792 md = sc->sc_md; 793 mdi = (struct g_raid_md_nvidia_object *)md; 794 if (!mdi->mdio_started) { 795 G_RAID_DEBUG1(0, sc, "Force array start due to timeout."); 796 g_raid_event_send(sc, G_RAID_NODE_E_START, 0); 797 } 798 } 799 800 static int 801 g_raid_md_create_nvidia(struct g_raid_md_object *md, struct g_class *mp, 802 struct g_geom **gp) 803 { 804 struct g_raid_softc *sc; 805 struct g_raid_md_nvidia_object *mdi; 806 char name[32]; 807 808 mdi = (struct g_raid_md_nvidia_object *)md; 809 arc4rand(&mdi->mdio_volume_id, 16, 0); 810 snprintf(name, sizeof(name), "NVIDIA-%d", 811 atomic_fetchadd_int(&NVIDIANodeID, 1)); 812 sc = g_raid_create_node(mp, name, md); 813 if (sc == NULL) 814 return (G_RAID_MD_TASTE_FAIL); 815 md->mdo_softc = sc; 816 *gp = sc->sc_geom; 817 return (G_RAID_MD_TASTE_NEW); 818 } 819 820 static int 821 g_raid_md_taste_nvidia(struct g_raid_md_object *md, struct g_class *mp, 822 struct g_consumer *cp, struct g_geom **gp) 823 { 824 struct g_consumer *rcp; 825 struct g_provider *pp; 826 struct g_raid_md_nvidia_object *mdi, *mdi1; 827 struct g_raid_softc *sc; 828 struct g_raid_disk *disk; 829 struct nvidia_raid_conf *meta; 830 struct g_raid_md_nvidia_perdisk *pd; 831 struct g_geom *geom; 832 int error, result, spare, len; 833 char name[32]; 834 uint16_t vendor; 835 836 G_RAID_DEBUG(1, "Tasting NVIDIA on %s", cp->provider->name); 837 mdi = (struct g_raid_md_nvidia_object *)md; 838 pp = cp->provider; 839 840 /* Read metadata from device. */ 841 meta = NULL; 842 vendor = 0xffff; 843 if (g_access(cp, 1, 0, 0) != 0) 844 return (G_RAID_MD_TASTE_FAIL); 845 g_topology_unlock(); 846 len = 2; 847 if (pp->geom->rank == 1) 848 g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor); 849 meta = nvidia_meta_read(cp); 850 g_topology_lock(); 851 g_access(cp, -1, 0, 0); 852 if (meta == NULL) { 853 if (g_raid_aggressive_spare) { 854 if (vendor == 0x10de) { 855 G_RAID_DEBUG(1, 856 "No NVIDIA metadata, forcing spare."); 857 spare = 2; 858 goto search; 859 } else { 860 G_RAID_DEBUG(1, 861 "NVIDIA vendor mismatch 0x%04x != 0x10de", 862 vendor); 863 } 864 } 865 return (G_RAID_MD_TASTE_FAIL); 866 } 867 868 /* Metadata valid. Print it. */ 869 g_raid_md_nvidia_print(meta); 870 G_RAID_DEBUG(1, "NVIDIA disk position %d", meta->disk_number); 871 spare = 0;//(meta->type == NVIDIA_T_SPARE) ? 1 : 0; 872 873 search: 874 /* Search for matching node. */ 875 sc = NULL; 876 mdi1 = NULL; 877 LIST_FOREACH(geom, &mp->geom, geom) { 878 sc = geom->softc; 879 if (sc == NULL) 880 continue; 881 if (sc->sc_stopping != 0) 882 continue; 883 if (sc->sc_md->mdo_class != md->mdo_class) 884 continue; 885 mdi1 = (struct g_raid_md_nvidia_object *)sc->sc_md; 886 if (spare) { 887 if (mdi1->mdio_incomplete) 888 break; 889 } else { 890 if (memcmp(&mdi1->mdio_volume_id, 891 &meta->volume_id, 16) == 0) 892 break; 893 } 894 } 895 896 /* Found matching node. */ 897 if (geom != NULL) { 898 G_RAID_DEBUG(1, "Found matching array %s", sc->sc_name); 899 result = G_RAID_MD_TASTE_EXISTING; 900 901 } else if (spare) { /* Not found needy node -- left for later. */ 902 G_RAID_DEBUG(1, "Spare is not needed at this time"); 903 goto fail1; 904 905 } else { /* Not found matching node -- create one. */ 906 result = G_RAID_MD_TASTE_NEW; 907 memcpy(&mdi->mdio_volume_id, &meta->volume_id, 16); 908 snprintf(name, sizeof(name), "NVIDIA-%d", 909 atomic_fetchadd_int(&NVIDIANodeID, 1)); 910 sc = g_raid_create_node(mp, name, md); 911 md->mdo_softc = sc; 912 geom = sc->sc_geom; 913 callout_init(&mdi->mdio_start_co, 1); 914 callout_reset(&mdi->mdio_start_co, g_raid_start_timeout * hz, 915 g_raid_nvidia_go, sc); 916 mdi->mdio_rootmount = root_mount_hold("GRAID-NVIDIA"); 917 G_RAID_DEBUG1(1, sc, "root_mount_hold %p", mdi->mdio_rootmount); 918 } 919 920 rcp = g_new_consumer(geom); 921 g_attach(rcp, pp); 922 if (g_access(rcp, 1, 1, 1) != 0) 923 ; //goto fail1; 924 925 g_topology_unlock(); 926 sx_xlock(&sc->sc_lock); 927 928 pd = malloc(sizeof(*pd), M_MD_NVIDIA, M_WAITOK | M_ZERO); 929 pd->pd_meta = meta; 930 if (spare == 2) { 931 pd->pd_disk_pos = -3; 932 } else { 933 pd->pd_disk_pos = -1; 934 } 935 pd->pd_disk_size = pp->mediasize; 936 disk = g_raid_create_disk(sc); 937 disk->d_md_data = (void *)pd; 938 disk->d_consumer = rcp; 939 rcp->private = disk; 940 941 /* Read kernel dumping information. */ 942 disk->d_kd.offset = 0; 943 disk->d_kd.length = OFF_MAX; 944 len = sizeof(disk->d_kd); 945 error = g_io_getattr("GEOM::kerneldump", rcp, &len, &disk->d_kd); 946 if (disk->d_kd.di.dumper == NULL) 947 G_RAID_DEBUG1(2, sc, "Dumping not supported by %s: %d.", 948 rcp->provider->name, error); 949 950 g_raid_md_nvidia_new_disk(disk); 951 952 sx_xunlock(&sc->sc_lock); 953 g_topology_lock(); 954 *gp = geom; 955 return (result); 956 fail1: 957 free(meta, M_MD_NVIDIA); 958 return (G_RAID_MD_TASTE_FAIL); 959 } 960 961 static int 962 g_raid_md_event_nvidia(struct g_raid_md_object *md, 963 struct g_raid_disk *disk, u_int event) 964 { 965 struct g_raid_softc *sc; 966 struct g_raid_subdisk *sd; 967 struct g_raid_md_nvidia_object *mdi; 968 struct g_raid_md_nvidia_perdisk *pd; 969 970 sc = md->mdo_softc; 971 mdi = (struct g_raid_md_nvidia_object *)md; 972 if (disk == NULL) { 973 switch (event) { 974 case G_RAID_NODE_E_START: 975 if (!mdi->mdio_started) { 976 /* Bump volume ID to drop missing disks. */ 977 arc4rand(&mdi->mdio_volume_id, 16, 0); 978 g_raid_md_nvidia_start(sc); 979 } 980 return (0); 981 } 982 return (-1); 983 } 984 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 985 switch (event) { 986 case G_RAID_DISK_E_DISCONNECTED: 987 /* If disk was assigned, just update statuses. */ 988 if (pd->pd_disk_pos >= 0) { 989 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 990 if (disk->d_consumer) { 991 g_raid_kill_consumer(sc, disk->d_consumer); 992 disk->d_consumer = NULL; 993 } 994 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 995 g_raid_change_subdisk_state(sd, 996 G_RAID_SUBDISK_S_NONE); 997 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED, 998 G_RAID_EVENT_SUBDISK); 999 } 1000 } else { 1001 /* Otherwise -- delete. */ 1002 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 1003 g_raid_destroy_disk(disk); 1004 } 1005 1006 if (mdi->mdio_started) { 1007 /* Bump volume ID to prevent disk resurrection. */ 1008 if (pd->pd_disk_pos >= 0) 1009 arc4rand(&mdi->mdio_volume_id, 16, 0); 1010 1011 /* Write updated metadata to all disks. */ 1012 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 1013 } 1014 1015 /* Check if anything left except placeholders. */ 1016 if (g_raid_ndisks(sc, -1) == 1017 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1018 g_raid_destroy_node(sc, 0); 1019 else 1020 g_raid_md_nvidia_refill(sc); 1021 return (0); 1022 } 1023 return (-2); 1024 } 1025 1026 static int 1027 g_raid_md_ctl_nvidia(struct g_raid_md_object *md, 1028 struct gctl_req *req) 1029 { 1030 struct g_raid_softc *sc; 1031 struct g_raid_volume *vol; 1032 struct g_raid_subdisk *sd; 1033 struct g_raid_disk *disk; 1034 struct g_raid_md_nvidia_object *mdi; 1035 struct g_raid_md_nvidia_perdisk *pd; 1036 struct g_consumer *cp; 1037 struct g_provider *pp; 1038 char arg[16]; 1039 const char *verb, *volname, *levelname, *diskname; 1040 int *nargs, *force; 1041 off_t size, sectorsize, strip, volsize; 1042 intmax_t *sizearg, *striparg; 1043 int numdisks, i, len, level, qual, update; 1044 int error; 1045 1046 sc = md->mdo_softc; 1047 mdi = (struct g_raid_md_nvidia_object *)md; 1048 verb = gctl_get_param(req, "verb", NULL); 1049 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 1050 error = 0; 1051 if (strcmp(verb, "label") == 0) { 1052 1053 if (*nargs < 4) { 1054 gctl_error(req, "Invalid number of arguments."); 1055 return (-1); 1056 } 1057 volname = gctl_get_asciiparam(req, "arg1"); 1058 if (volname == NULL) { 1059 gctl_error(req, "No volume name."); 1060 return (-2); 1061 } 1062 levelname = gctl_get_asciiparam(req, "arg2"); 1063 if (levelname == NULL) { 1064 gctl_error(req, "No RAID level."); 1065 return (-3); 1066 } 1067 if (strcasecmp(levelname, "RAID5") == 0) 1068 levelname = "RAID5-LS"; 1069 if (g_raid_volume_str2level(levelname, &level, &qual)) { 1070 gctl_error(req, "Unknown RAID level '%s'.", levelname); 1071 return (-4); 1072 } 1073 numdisks = *nargs - 3; 1074 force = gctl_get_paraml(req, "force", sizeof(*force)); 1075 if (!g_raid_md_nvidia_supported(level, qual, numdisks, 1076 force ? *force : 0)) { 1077 gctl_error(req, "Unsupported RAID level " 1078 "(0x%02x/0x%02x), or number of disks (%d).", 1079 level, qual, numdisks); 1080 return (-5); 1081 } 1082 1083 /* Search for disks, connect them and probe. */ 1084 size = 0x7fffffffffffffffllu; 1085 sectorsize = 0; 1086 for (i = 0; i < numdisks; i++) { 1087 snprintf(arg, sizeof(arg), "arg%d", i + 3); 1088 diskname = gctl_get_asciiparam(req, arg); 1089 if (diskname == NULL) { 1090 gctl_error(req, "No disk name (%s).", arg); 1091 error = -6; 1092 break; 1093 } 1094 if (strcmp(diskname, "NONE") == 0) { 1095 cp = NULL; 1096 pp = NULL; 1097 } else { 1098 g_topology_lock(); 1099 cp = g_raid_open_consumer(sc, diskname); 1100 if (cp == NULL) { 1101 gctl_error(req, "Can't open '%s'.", 1102 diskname); 1103 g_topology_unlock(); 1104 error = -7; 1105 break; 1106 } 1107 pp = cp->provider; 1108 } 1109 pd = malloc(sizeof(*pd), M_MD_NVIDIA, M_WAITOK | M_ZERO); 1110 pd->pd_disk_pos = i; 1111 disk = g_raid_create_disk(sc); 1112 disk->d_md_data = (void *)pd; 1113 disk->d_consumer = cp; 1114 if (cp == NULL) 1115 continue; 1116 cp->private = disk; 1117 g_topology_unlock(); 1118 1119 /* Read kernel dumping information. */ 1120 disk->d_kd.offset = 0; 1121 disk->d_kd.length = OFF_MAX; 1122 len = sizeof(disk->d_kd); 1123 g_io_getattr("GEOM::kerneldump", cp, &len, &disk->d_kd); 1124 if (disk->d_kd.di.dumper == NULL) 1125 G_RAID_DEBUG1(2, sc, 1126 "Dumping not supported by %s.", 1127 cp->provider->name); 1128 1129 pd->pd_disk_size = pp->mediasize; 1130 if (size > pp->mediasize) 1131 size = pp->mediasize; 1132 if (sectorsize < pp->sectorsize) 1133 sectorsize = pp->sectorsize; 1134 } 1135 if (error != 0) 1136 return (error); 1137 1138 if (sectorsize <= 0) { 1139 gctl_error(req, "Can't get sector size."); 1140 return (-8); 1141 } 1142 1143 /* Reserve space for metadata. */ 1144 size -= 2 * sectorsize; 1145 1146 /* Handle size argument. */ 1147 len = sizeof(*sizearg); 1148 sizearg = gctl_get_param(req, "size", &len); 1149 if (sizearg != NULL && len == sizeof(*sizearg) && 1150 *sizearg > 0) { 1151 if (*sizearg > size) { 1152 gctl_error(req, "Size too big %lld > %lld.", 1153 (long long)*sizearg, (long long)size); 1154 return (-9); 1155 } 1156 size = *sizearg; 1157 } 1158 1159 /* Handle strip argument. */ 1160 strip = 131072; 1161 len = sizeof(*striparg); 1162 striparg = gctl_get_param(req, "strip", &len); 1163 if (striparg != NULL && len == sizeof(*striparg) && 1164 *striparg > 0) { 1165 if (*striparg < sectorsize) { 1166 gctl_error(req, "Strip size too small."); 1167 return (-10); 1168 } 1169 if (*striparg % sectorsize != 0) { 1170 gctl_error(req, "Incorrect strip size."); 1171 return (-11); 1172 } 1173 if (strip > 65535 * sectorsize) { 1174 gctl_error(req, "Strip size too big."); 1175 return (-12); 1176 } 1177 strip = *striparg; 1178 } 1179 1180 /* Round size down to strip or sector. */ 1181 if (level == G_RAID_VOLUME_RL_RAID1) 1182 size -= (size % sectorsize); 1183 else if (level == G_RAID_VOLUME_RL_RAID1E && 1184 (numdisks & 1) != 0) 1185 size -= (size % (2 * strip)); 1186 else 1187 size -= (size % strip); 1188 if (size <= 0) { 1189 gctl_error(req, "Size too small."); 1190 return (-13); 1191 } 1192 1193 if (level == G_RAID_VOLUME_RL_RAID0 || 1194 level == G_RAID_VOLUME_RL_CONCAT || 1195 level == G_RAID_VOLUME_RL_SINGLE) 1196 volsize = size * numdisks; 1197 else if (level == G_RAID_VOLUME_RL_RAID1) 1198 volsize = size; 1199 else if (level == G_RAID_VOLUME_RL_RAID5) 1200 volsize = size * (numdisks - 1); 1201 else { /* RAID1E */ 1202 volsize = ((size * numdisks) / strip / 2) * 1203 strip; 1204 } 1205 if (volsize > 0xffffffffllu * sectorsize) { 1206 gctl_error(req, "Size too big."); 1207 return (-14); 1208 } 1209 1210 /* We have all we need, create things: volume, ... */ 1211 mdi->mdio_total_disks = numdisks; 1212 mdi->mdio_started = 1; 1213 vol = g_raid_create_volume(sc, volname, -1); 1214 vol->v_md_data = (void *)(intptr_t)0; 1215 vol->v_raid_level = level; 1216 vol->v_raid_level_qualifier = qual; 1217 vol->v_strip_size = strip; 1218 vol->v_disks_count = numdisks; 1219 vol->v_mediasize = volsize; 1220 vol->v_sectorsize = sectorsize; 1221 g_raid_start_volume(vol); 1222 1223 /* , and subdisks. */ 1224 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1225 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 1226 sd = &vol->v_subdisks[pd->pd_disk_pos]; 1227 sd->sd_disk = disk; 1228 sd->sd_offset = 0; 1229 sd->sd_size = size; 1230 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 1231 if (sd->sd_disk->d_consumer != NULL) { 1232 g_raid_change_disk_state(disk, 1233 G_RAID_DISK_S_ACTIVE); 1234 g_raid_change_subdisk_state(sd, 1235 G_RAID_SUBDISK_S_ACTIVE); 1236 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 1237 G_RAID_EVENT_SUBDISK); 1238 } else { 1239 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1240 } 1241 } 1242 1243 /* Write metadata based on created entities. */ 1244 G_RAID_DEBUG1(0, sc, "Array started."); 1245 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 1246 1247 /* Pickup any STALE/SPARE disks to refill array if needed. */ 1248 g_raid_md_nvidia_refill(sc); 1249 1250 g_raid_event_send(vol, G_RAID_VOLUME_E_START, 1251 G_RAID_EVENT_VOLUME); 1252 return (0); 1253 } 1254 if (strcmp(verb, "delete") == 0) { 1255 1256 /* Check if some volume is still open. */ 1257 force = gctl_get_paraml(req, "force", sizeof(*force)); 1258 if (force != NULL && *force == 0 && 1259 g_raid_nopens(sc) != 0) { 1260 gctl_error(req, "Some volume is still open."); 1261 return (-4); 1262 } 1263 1264 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1265 if (disk->d_consumer) 1266 nvidia_meta_erase(disk->d_consumer); 1267 } 1268 g_raid_destroy_node(sc, 0); 1269 return (0); 1270 } 1271 if (strcmp(verb, "remove") == 0 || 1272 strcmp(verb, "fail") == 0) { 1273 if (*nargs < 2) { 1274 gctl_error(req, "Invalid number of arguments."); 1275 return (-1); 1276 } 1277 for (i = 1; i < *nargs; i++) { 1278 snprintf(arg, sizeof(arg), "arg%d", i); 1279 diskname = gctl_get_asciiparam(req, arg); 1280 if (diskname == NULL) { 1281 gctl_error(req, "No disk name (%s).", arg); 1282 error = -2; 1283 break; 1284 } 1285 if (strncmp(diskname, "/dev/", 5) == 0) 1286 diskname += 5; 1287 1288 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1289 if (disk->d_consumer != NULL && 1290 disk->d_consumer->provider != NULL && 1291 strcmp(disk->d_consumer->provider->name, 1292 diskname) == 0) 1293 break; 1294 } 1295 if (disk == NULL) { 1296 gctl_error(req, "Disk '%s' not found.", 1297 diskname); 1298 error = -3; 1299 break; 1300 } 1301 1302 if (strcmp(verb, "fail") == 0) { 1303 g_raid_md_fail_disk_nvidia(md, NULL, disk); 1304 continue; 1305 } 1306 1307 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 1308 1309 /* Erase metadata on deleting disk. */ 1310 nvidia_meta_erase(disk->d_consumer); 1311 1312 /* If disk was assigned, just update statuses. */ 1313 if (pd->pd_disk_pos >= 0) { 1314 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE); 1315 g_raid_kill_consumer(sc, disk->d_consumer); 1316 disk->d_consumer = NULL; 1317 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 1318 g_raid_change_subdisk_state(sd, 1319 G_RAID_SUBDISK_S_NONE); 1320 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED, 1321 G_RAID_EVENT_SUBDISK); 1322 } 1323 } else { 1324 /* Otherwise -- delete. */ 1325 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 1326 g_raid_destroy_disk(disk); 1327 } 1328 } 1329 1330 /* Write updated metadata to remaining disks. */ 1331 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 1332 1333 /* Check if anything left except placeholders. */ 1334 if (g_raid_ndisks(sc, -1) == 1335 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1336 g_raid_destroy_node(sc, 0); 1337 else 1338 g_raid_md_nvidia_refill(sc); 1339 return (error); 1340 } 1341 if (strcmp(verb, "insert") == 0) { 1342 if (*nargs < 2) { 1343 gctl_error(req, "Invalid number of arguments."); 1344 return (-1); 1345 } 1346 update = 0; 1347 for (i = 1; i < *nargs; i++) { 1348 /* Get disk name. */ 1349 snprintf(arg, sizeof(arg), "arg%d", i); 1350 diskname = gctl_get_asciiparam(req, arg); 1351 if (diskname == NULL) { 1352 gctl_error(req, "No disk name (%s).", arg); 1353 error = -3; 1354 break; 1355 } 1356 1357 /* Try to find provider with specified name. */ 1358 g_topology_lock(); 1359 cp = g_raid_open_consumer(sc, diskname); 1360 if (cp == NULL) { 1361 gctl_error(req, "Can't open disk '%s'.", 1362 diskname); 1363 g_topology_unlock(); 1364 error = -4; 1365 break; 1366 } 1367 pp = cp->provider; 1368 1369 pd = malloc(sizeof(*pd), M_MD_NVIDIA, M_WAITOK | M_ZERO); 1370 pd->pd_disk_pos = -3; 1371 pd->pd_disk_size = pp->mediasize; 1372 1373 disk = g_raid_create_disk(sc); 1374 disk->d_consumer = cp; 1375 disk->d_md_data = (void *)pd; 1376 cp->private = disk; 1377 g_topology_unlock(); 1378 1379 /* Read kernel dumping information. */ 1380 disk->d_kd.offset = 0; 1381 disk->d_kd.length = OFF_MAX; 1382 len = sizeof(disk->d_kd); 1383 g_io_getattr("GEOM::kerneldump", cp, &len, &disk->d_kd); 1384 if (disk->d_kd.di.dumper == NULL) 1385 G_RAID_DEBUG1(2, sc, 1386 "Dumping not supported by %s.", 1387 cp->provider->name); 1388 1389 /* Welcome the "new" disk. */ 1390 update += g_raid_md_nvidia_start_disk(disk); 1391 if (disk->d_state != G_RAID_DISK_S_SPARE && 1392 disk->d_state != G_RAID_DISK_S_ACTIVE) { 1393 gctl_error(req, "Disk '%s' doesn't fit.", 1394 diskname); 1395 g_raid_destroy_disk(disk); 1396 error = -8; 1397 break; 1398 } 1399 } 1400 1401 /* Write new metadata if we changed something. */ 1402 if (update) 1403 g_raid_md_write_nvidia(md, NULL, NULL, NULL); 1404 return (error); 1405 } 1406 gctl_error(req, "Command '%s' is not supported.", verb); 1407 return (-100); 1408 } 1409 1410 static int 1411 g_raid_md_write_nvidia(struct g_raid_md_object *md, struct g_raid_volume *tvol, 1412 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1413 { 1414 struct g_raid_softc *sc; 1415 struct g_raid_volume *vol; 1416 struct g_raid_subdisk *sd; 1417 struct g_raid_disk *disk; 1418 struct g_raid_md_nvidia_object *mdi; 1419 struct g_raid_md_nvidia_perdisk *pd; 1420 struct nvidia_raid_conf *meta; 1421 int i, spares; 1422 1423 sc = md->mdo_softc; 1424 mdi = (struct g_raid_md_nvidia_object *)md; 1425 1426 if (sc->sc_stopping == G_RAID_DESTROY_HARD) 1427 return (0); 1428 1429 /* There is only one volume. */ 1430 vol = TAILQ_FIRST(&sc->sc_volumes); 1431 1432 /* Fill global fields. */ 1433 meta = malloc(sizeof(*meta), M_MD_NVIDIA, M_WAITOK | M_ZERO); 1434 if (mdi->mdio_meta) 1435 memcpy(meta, mdi->mdio_meta, sizeof(*meta)); 1436 memcpy(meta->nvidia_id, NVIDIA_MAGIC, sizeof(NVIDIA_MAGIC) - 1); 1437 meta->config_size = 30; 1438 meta->version = 0x0064; 1439 meta->total_sectors = vol->v_mediasize / vol->v_sectorsize; 1440 meta->sector_size = vol->v_sectorsize; 1441 nvidia_meta_put_name(meta, vol->v_name); 1442 meta->magic_0 = NVIDIA_MAGIC0; 1443 memcpy(&meta->volume_id, &mdi->mdio_volume_id, 16); 1444 meta->state = NVIDIA_S_IDLE; 1445 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) 1446 meta->array_width = 1; 1447 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) 1448 meta->array_width = vol->v_disks_count / 2; 1449 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID5) 1450 meta->array_width = vol->v_disks_count - 1; 1451 else 1452 meta->array_width = vol->v_disks_count; 1453 meta->total_disks = vol->v_disks_count; 1454 meta->orig_array_width = meta->array_width; 1455 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID0) 1456 meta->type = NVIDIA_T_RAID0; 1457 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) 1458 meta->type = NVIDIA_T_RAID1; 1459 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) 1460 meta->type = NVIDIA_T_RAID01; 1461 else if (vol->v_raid_level == G_RAID_VOLUME_RL_CONCAT || 1462 vol->v_raid_level == G_RAID_VOLUME_RL_SINGLE) 1463 meta->type = NVIDIA_T_CONCAT; 1464 else if (vol->v_raid_level_qualifier == G_RAID_VOLUME_RLQ_R5LA) 1465 meta->type = NVIDIA_T_RAID5; 1466 else 1467 meta->type = NVIDIA_T_RAID5_SYM; 1468 meta->strip_sectors = vol->v_strip_size / vol->v_sectorsize; 1469 meta->strip_bytes = vol->v_strip_size; 1470 meta->strip_shift = ffs(meta->strip_sectors) - 1; 1471 meta->strip_mask = meta->strip_sectors - 1; 1472 meta->stripe_sectors = meta->strip_sectors * meta->orig_array_width; 1473 meta->stripe_bytes = meta->stripe_sectors * vol->v_sectorsize; 1474 meta->rebuild_lba = 0; 1475 meta->orig_type = meta->type; 1476 meta->orig_total_sectors = meta->total_sectors; 1477 meta->status = 0; 1478 1479 for (i = 0; i < vol->v_disks_count; i++) { 1480 sd = &vol->v_subdisks[i]; 1481 if ((sd->sd_state == G_RAID_SUBDISK_S_STALE || 1482 sd->sd_state == G_RAID_SUBDISK_S_RESYNC || 1483 vol->v_dirty) && 1484 meta->state != NVIDIA_S_REBUILD) 1485 meta->state = NVIDIA_S_SYNC; 1486 else if (sd->sd_state == G_RAID_SUBDISK_S_NEW || 1487 sd->sd_state == G_RAID_SUBDISK_S_REBUILD) 1488 meta->state = NVIDIA_S_REBUILD; 1489 } 1490 1491 /* We are done. Print meta data and store them to disks. */ 1492 if (mdi->mdio_meta != NULL) 1493 free(mdi->mdio_meta, M_MD_NVIDIA); 1494 mdi->mdio_meta = meta; 1495 spares = 0; 1496 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1497 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 1498 if (disk->d_state != G_RAID_DISK_S_ACTIVE && 1499 disk->d_state != G_RAID_DISK_S_SPARE) 1500 continue; 1501 if (pd->pd_meta != NULL) { 1502 free(pd->pd_meta, M_MD_NVIDIA); 1503 pd->pd_meta = NULL; 1504 } 1505 pd->pd_meta = nvidia_meta_copy(meta); 1506 if ((sd = TAILQ_FIRST(&disk->d_subdisks)) != NULL) { 1507 /* For RAID0+1 we need to translate order. */ 1508 pd->pd_meta->disk_number = 1509 nvidia_meta_translate_disk(meta, sd->sd_pos); 1510 if (sd->sd_state != G_RAID_SUBDISK_S_ACTIVE) { 1511 pd->pd_meta->disk_status = 0x100; 1512 pd->pd_meta->rebuild_lba = 1513 sd->sd_rebuild_pos / vol->v_sectorsize * 1514 meta->array_width; 1515 } 1516 } else 1517 pd->pd_meta->disk_number = meta->total_disks + spares++; 1518 G_RAID_DEBUG(1, "Writing NVIDIA metadata to %s", 1519 g_raid_get_diskname(disk)); 1520 g_raid_md_nvidia_print(pd->pd_meta); 1521 nvidia_meta_write(disk->d_consumer, pd->pd_meta); 1522 } 1523 return (0); 1524 } 1525 1526 static int 1527 g_raid_md_fail_disk_nvidia(struct g_raid_md_object *md, 1528 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 1529 { 1530 struct g_raid_softc *sc; 1531 struct g_raid_md_nvidia_perdisk *pd; 1532 struct g_raid_subdisk *sd; 1533 1534 sc = md->mdo_softc; 1535 pd = (struct g_raid_md_nvidia_perdisk *)tdisk->d_md_data; 1536 1537 /* We can't fail disk that is not a part of array now. */ 1538 if (pd->pd_disk_pos < 0) 1539 return (-1); 1540 1541 /* Erase metadata to prevent disks's later resurrection. */ 1542 if (tdisk->d_consumer) 1543 nvidia_meta_erase(tdisk->d_consumer); 1544 1545 /* Change states. */ 1546 g_raid_change_disk_state(tdisk, G_RAID_DISK_S_FAILED); 1547 TAILQ_FOREACH(sd, &tdisk->d_subdisks, sd_next) { 1548 g_raid_change_subdisk_state(sd, 1549 G_RAID_SUBDISK_S_FAILED); 1550 g_raid_event_send(sd, G_RAID_SUBDISK_E_FAILED, 1551 G_RAID_EVENT_SUBDISK); 1552 } 1553 1554 /* Write updated metadata to remaining disks. */ 1555 g_raid_md_write_nvidia(md, NULL, NULL, tdisk); 1556 1557 /* Check if anything left except placeholders. */ 1558 if (g_raid_ndisks(sc, -1) == 1559 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE)) 1560 g_raid_destroy_node(sc, 0); 1561 else 1562 g_raid_md_nvidia_refill(sc); 1563 return (0); 1564 } 1565 1566 static int 1567 g_raid_md_free_disk_nvidia(struct g_raid_md_object *md, 1568 struct g_raid_disk *disk) 1569 { 1570 struct g_raid_md_nvidia_perdisk *pd; 1571 1572 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data; 1573 if (pd->pd_meta != NULL) { 1574 free(pd->pd_meta, M_MD_NVIDIA); 1575 pd->pd_meta = NULL; 1576 } 1577 free(pd, M_MD_NVIDIA); 1578 disk->d_md_data = NULL; 1579 return (0); 1580 } 1581 1582 static int 1583 g_raid_md_free_nvidia(struct g_raid_md_object *md) 1584 { 1585 struct g_raid_md_nvidia_object *mdi; 1586 1587 mdi = (struct g_raid_md_nvidia_object *)md; 1588 if (!mdi->mdio_started) { 1589 mdi->mdio_started = 0; 1590 callout_stop(&mdi->mdio_start_co); 1591 G_RAID_DEBUG1(1, md->mdo_softc, 1592 "root_mount_rel %p", mdi->mdio_rootmount); 1593 root_mount_rel(mdi->mdio_rootmount); 1594 mdi->mdio_rootmount = NULL; 1595 } 1596 if (mdi->mdio_meta != NULL) { 1597 free(mdi->mdio_meta, M_MD_NVIDIA); 1598 mdi->mdio_meta = NULL; 1599 } 1600 return (0); 1601 } 1602 1603 G_RAID_MD_DECLARE(g_raid_md_nvidia); 1604