sys/geom/raid/md_intel.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   3  *
   4  * Copyright (c) 2010 Alexander Motin <mav@FreeBSD.org>
   5  * Copyright (c) 2000 - 2008 Søren Schmidt <sos@FreeBSD.org>
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  */
  29
  30 #include <sys/cdefs.h>
  31 __FBSDID("$FreeBSD$");
  32
  33 #include <sys/param.h>
  34 #include <sys/bio.h>
  35 #include <sys/endian.h>
  36 #include <sys/kernel.h>
  37 #include <sys/kobj.h>
  38 #include <sys/limits.h>
  39 #include <sys/lock.h>
  40 #include <sys/malloc.h>
  41 #include <sys/mutex.h>
  42 #include <sys/systm.h>
  43 #include <sys/taskqueue.h>
  44 #include <sys/disk.h>
  45 #include <geom/geom.h>
  46 #include "geom/raid/g_raid.h"
  47 #include "g_raid_md_if.h"
  48
  49 static MALLOC_DEFINE(M_MD_INTEL, "md_intel_data", "GEOM_RAID Intel metadata");
  50
  51 struct intel_raid_map {
  52         uint32_t        offset;
  53         uint32_t        disk_sectors;
  54         uint32_t        stripe_count;
  55         uint16_t        strip_sectors;
  56         uint8_t         status;
  57 #define INTEL_S_READY           0x00
  58 #define INTEL_S_UNINITIALIZED   0x01
  59 #define INTEL_S_DEGRADED        0x02
  60 #define INTEL_S_FAILURE         0x03
  61
  62         uint8_t         type;
  63 #define INTEL_T_RAID0           0x00
  64 #define INTEL_T_RAID1           0x01
  65 #define INTEL_T_RAID5           0x05
  66
  67         uint8_t         total_disks;
  68         uint8_t         total_domains;
  69         uint8_t         failed_disk_num;
  70         uint8_t         ddf;
  71         uint32_t        offset_hi;
  72         uint32_t        disk_sectors_hi;
  73         uint32_t        stripe_count_hi;
  74         uint32_t        filler_2[4];
  75         uint32_t        disk_idx[1];    /* total_disks entries. */
  76 #define INTEL_DI_IDX    0x00ffffff
  77 #define INTEL_DI_RBLD   0x01000000
  78 } __packed;
  79
  80 struct intel_raid_vol {
  81         uint8_t         name[16];
  82         u_int64_t       total_sectors __packed;
  83         uint32_t        state;
  84 #define INTEL_ST_BOOTABLE               0x00000001
  85 #define INTEL_ST_BOOT_DEVICE            0x00000002
  86 #define INTEL_ST_READ_COALESCING        0x00000004
  87 #define INTEL_ST_WRITE_COALESCING       0x00000008
  88 #define INTEL_ST_LAST_SHUTDOWN_DIRTY    0x00000010
  89 #define INTEL_ST_HIDDEN_AT_BOOT         0x00000020
  90 #define INTEL_ST_CURRENTLY_HIDDEN       0x00000040
  91 #define INTEL_ST_VERIFY_AND_FIX         0x00000080
  92 #define INTEL_ST_MAP_STATE_UNINIT       0x00000100
  93 #define INTEL_ST_NO_AUTO_RECOVERY       0x00000200
  94 #define INTEL_ST_CLONE_N_GO             0x00000400
  95 #define INTEL_ST_CLONE_MAN_SYNC         0x00000800
  96 #define INTEL_ST_CNG_MASTER_DISK_NUM    0x00001000
  97         uint32_t        reserved;
  98         uint8_t         migr_priority;
  99         uint8_t         num_sub_vols;
 100         uint8_t         tid;
 101         uint8_t         cng_master_disk;
 102         uint16_t        cache_policy;
 103         uint8_t         cng_state;
 104 #define INTEL_CNGST_UPDATED             0
 105 #define INTEL_CNGST_NEEDS_UPDATE        1
 106 #define INTEL_CNGST_MASTER_MISSING      2
 107         uint8_t         cng_sub_state;
 108         uint32_t        filler_0[10];
 109
 110         uint32_t        curr_migr_unit;
 111         uint32_t        checkpoint_id;
 112         uint8_t         migr_state;
 113         uint8_t         migr_type;
 114 #define INTEL_MT_INIT           0
 115 #define INTEL_MT_REBUILD        1
 116 #define INTEL_MT_VERIFY         2
 117 #define INTEL_MT_GEN_MIGR       3
 118 #define INTEL_MT_STATE_CHANGE   4
 119 #define INTEL_MT_REPAIR         5
 120         uint8_t         dirty;
 121         uint8_t         fs_state;
 122         uint16_t        verify_errors;
 123         uint16_t        bad_blocks;
 124         uint32_t        curr_migr_unit_hi;
 125         uint32_t        filler_1[3];
 126         struct intel_raid_map map[1];   /* 2 entries if migr_state != 0. */
 127 } __packed;
 128
 129 struct intel_raid_disk {
 130 #define INTEL_SERIAL_LEN        16
 131         uint8_t         serial[INTEL_SERIAL_LEN];
 132         uint32_t        sectors;
 133         uint32_t        id;
 134         uint32_t        flags;
 135 #define INTEL_F_SPARE           0x01
 136 #define INTEL_F_ASSIGNED        0x02
 137 #define INTEL_F_FAILED          0x04
 138 #define INTEL_F_ONLINE          0x08
 139 #define INTEL_F_DISABLED        0x80
 140         uint32_t        owner_cfg_num;
 141         uint32_t        sectors_hi;
 142         uint32_t        filler[3];
 143 } __packed;
 144
 145 struct intel_raid_conf {
 146         uint8_t         intel_id[24];
 147 #define INTEL_MAGIC             "Intel Raid ISM Cfg Sig. "
 148
 149         uint8_t         version[6];
 150 #define INTEL_VERSION_1000      "1.0.00"        /* RAID0 */
 151 #define INTEL_VERSION_1100      "1.1.00"        /* RAID1 */
 152 #define INTEL_VERSION_1200      "1.2.00"        /* Many volumes */
 153 #define INTEL_VERSION_1201      "1.2.01"        /* 3 or 4 disks */
 154 #define INTEL_VERSION_1202      "1.2.02"        /* RAID5 */
 155 #define INTEL_VERSION_1204      "1.2.04"        /* 5 or 6 disks */
 156 #define INTEL_VERSION_1206      "1.2.06"        /* CNG */
 157 #define INTEL_VERSION_1300      "1.3.00"        /* Attributes */
 158
 159         uint8_t         dummy_0[2];
 160         uint32_t        checksum;
 161         uint32_t        config_size;
 162         uint32_t        config_id;
 163         uint32_t        generation;
 164         uint32_t        error_log_size;
 165         uint32_t        attributes;
 166 #define INTEL_ATTR_RAID0        0x00000001
 167 #define INTEL_ATTR_RAID1        0x00000002
 168 #define INTEL_ATTR_RAID10       0x00000004
 169 #define INTEL_ATTR_RAID1E       0x00000008
 170 #define INTEL_ATTR_RAID5        0x00000010
 171 #define INTEL_ATTR_RAIDCNG      0x00000020
 172 #define INTEL_ATTR_EXT_STRIP    0x00000040
 173 #define INTEL_ATTR_NVM_CACHE    0x02000000
 174 #define INTEL_ATTR_2TB_DISK     0x04000000
 175 #define INTEL_ATTR_BBM          0x08000000
 176 #define INTEL_ATTR_NVM_CACHE2   0x10000000
 177 #define INTEL_ATTR_2TB          0x20000000
 178 #define INTEL_ATTR_PM           0x40000000
 179 #define INTEL_ATTR_CHECKSUM     0x80000000
 180
 181         uint8_t         total_disks;
 182         uint8_t         total_volumes;
 183         uint8_t         error_log_pos;
 184         uint8_t         dummy_2[1];
 185         uint32_t        cache_size;
 186         uint32_t        orig_config_id;
 187         uint32_t        pwr_cycle_count;
 188         uint32_t        bbm_log_size;
 189         uint32_t        filler_0[35];
 190         struct intel_raid_disk  disk[1];        /* total_disks entries. */
 191         /* Here goes total_volumes of struct intel_raid_vol. */
 192 } __packed;
 193
 194 #define INTEL_ATTR_SUPPORTED    ( INTEL_ATTR_RAID0 | INTEL_ATTR_RAID1 | \
 195     INTEL_ATTR_RAID10 | INTEL_ATTR_RAID1E | INTEL_ATTR_RAID5 |          \
 196     INTEL_ATTR_RAIDCNG | INTEL_ATTR_EXT_STRIP | INTEL_ATTR_2TB_DISK |   \
 197     INTEL_ATTR_2TB | INTEL_ATTR_PM | INTEL_ATTR_CHECKSUM )
 198
 199 #define INTEL_MAX_MD_SIZE(ndisks)                               \
 200     (sizeof(struct intel_raid_conf) +                           \
 201      sizeof(struct intel_raid_disk) * (ndisks - 1) +            \
 202      sizeof(struct intel_raid_vol) * 2 +                        \
 203      sizeof(struct intel_raid_map) * 2 +                        \
 204      sizeof(uint32_t) * (ndisks - 1) * 4)
 205
 206 struct g_raid_md_intel_perdisk {
 207         struct intel_raid_conf  *pd_meta;
 208         int                      pd_disk_pos;
 209         struct intel_raid_disk   pd_disk_meta;
 210 };
 211
 212 struct g_raid_md_intel_pervolume {
 213         int                      pv_volume_pos;
 214         int                      pv_cng;
 215         int                      pv_cng_man_sync;
 216         int                      pv_cng_master_disk;
 217 };
 218
 219 struct g_raid_md_intel_object {
 220         struct g_raid_md_object  mdio_base;
 221         uint32_t                 mdio_config_id;
 222         uint32_t                 mdio_orig_config_id;
 223         uint32_t                 mdio_generation;
 224         struct intel_raid_conf  *mdio_meta;
 225         struct callout           mdio_start_co; /* STARTING state timer. */
 226         int                      mdio_disks_present;
 227         int                      mdio_started;
 228         int                      mdio_incomplete;
 229         struct root_hold_token  *mdio_rootmount; /* Root mount delay token. */
 230 };
 231
 232 static g_raid_md_create_t g_raid_md_create_intel;
 233 static g_raid_md_taste_t g_raid_md_taste_intel;
 234 static g_raid_md_event_t g_raid_md_event_intel;
 235 static g_raid_md_ctl_t g_raid_md_ctl_intel;
 236 static g_raid_md_write_t g_raid_md_write_intel;
 237 static g_raid_md_fail_disk_t g_raid_md_fail_disk_intel;
 238 static g_raid_md_free_disk_t g_raid_md_free_disk_intel;
 239 static g_raid_md_free_volume_t g_raid_md_free_volume_intel;
 240 static g_raid_md_free_t g_raid_md_free_intel;
 241
 242 static kobj_method_t g_raid_md_intel_methods[] = {
 243         KOBJMETHOD(g_raid_md_create,    g_raid_md_create_intel),
 244         KOBJMETHOD(g_raid_md_taste,     g_raid_md_taste_intel),
 245         KOBJMETHOD(g_raid_md_event,     g_raid_md_event_intel),
 246         KOBJMETHOD(g_raid_md_ctl,       g_raid_md_ctl_intel),
 247         KOBJMETHOD(g_raid_md_write,     g_raid_md_write_intel),
 248         KOBJMETHOD(g_raid_md_fail_disk, g_raid_md_fail_disk_intel),
 249         KOBJMETHOD(g_raid_md_free_disk, g_raid_md_free_disk_intel),
 250         KOBJMETHOD(g_raid_md_free_volume,       g_raid_md_free_volume_intel),
 251         KOBJMETHOD(g_raid_md_free,      g_raid_md_free_intel),
 252         { 0, 0 }
 253 };
 254
 255 static struct g_raid_md_class g_raid_md_intel_class = {
 256         "Intel",
 257         g_raid_md_intel_methods,
 258         sizeof(struct g_raid_md_intel_object),
 259         .mdc_enable = 1,
 260         .mdc_priority = 100
 261 };
 262
 263
 264 static struct intel_raid_map *
 265 intel_get_map(struct intel_raid_vol *mvol, int i)
 266 {
 267         struct intel_raid_map *mmap;
 268
 269         if (i > (mvol->migr_state ? 1 : 0))
 270                 return (NULL);
 271         mmap = &mvol->map[0];
 272         for (; i > 0; i--) {
 273                 mmap = (struct intel_raid_map *)
 274                     &mmap->disk_idx[mmap->total_disks];
 275         }
 276         return ((struct intel_raid_map *)mmap);
 277 }
 278
 279 static struct intel_raid_vol *
 280 intel_get_volume(struct intel_raid_conf *meta, int i)
 281 {
 282         struct intel_raid_vol *mvol;
 283         struct intel_raid_map *mmap;
 284
 285         if (i > 1)
 286                 return (NULL);
 287         mvol = (struct intel_raid_vol *)&meta->disk[meta->total_disks];
 288         for (; i > 0; i--) {
 289                 mmap = intel_get_map(mvol, mvol->migr_state ? 1 : 0);
 290                 mvol = (struct intel_raid_vol *)
 291                     &mmap->disk_idx[mmap->total_disks];
 292         }
 293         return (mvol);
 294 }
 295
 296 static off_t
 297 intel_get_map_offset(struct intel_raid_map *mmap)
 298 {
 299         off_t offset = (off_t)mmap->offset_hi << 32;
 300
 301         offset += mmap->offset;
 302         return (offset);
 303 }
 304
 305 static void
 306 intel_set_map_offset(struct intel_raid_map *mmap, off_t offset)
 307 {
 308
 309         mmap->offset = offset & 0xffffffff;
 310         mmap->offset_hi = offset >> 32;
 311 }
 312
 313 static off_t
 314 intel_get_map_disk_sectors(struct intel_raid_map *mmap)
 315 {
 316         off_t disk_sectors = (off_t)mmap->disk_sectors_hi << 32;
 317
 318         disk_sectors += mmap->disk_sectors;
 319         return (disk_sectors);
 320 }
 321
 322 static void
 323 intel_set_map_disk_sectors(struct intel_raid_map *mmap, off_t disk_sectors)
 324 {
 325
 326         mmap->disk_sectors = disk_sectors & 0xffffffff;
 327         mmap->disk_sectors_hi = disk_sectors >> 32;
 328 }
 329
 330 static void
 331 intel_set_map_stripe_count(struct intel_raid_map *mmap, off_t stripe_count)
 332 {
 333
 334         mmap->stripe_count = stripe_count & 0xffffffff;
 335         mmap->stripe_count_hi = stripe_count >> 32;
 336 }
 337
 338 static off_t
 339 intel_get_disk_sectors(struct intel_raid_disk *disk)
 340 {
 341         off_t sectors = (off_t)disk->sectors_hi << 32;
 342
 343         sectors += disk->sectors;
 344         return (sectors);
 345 }
 346
 347 static void
 348 intel_set_disk_sectors(struct intel_raid_disk *disk, off_t sectors)
 349 {
 350
 351         disk->sectors = sectors & 0xffffffff;
 352         disk->sectors_hi = sectors >> 32;
 353 }
 354
 355 static off_t
 356 intel_get_vol_curr_migr_unit(struct intel_raid_vol *vol)
 357 {
 358         off_t curr_migr_unit = (off_t)vol->curr_migr_unit_hi << 32;
 359
 360         curr_migr_unit += vol->curr_migr_unit;
 361         return (curr_migr_unit);
 362 }
 363
 364 static void
 365 intel_set_vol_curr_migr_unit(struct intel_raid_vol *vol, off_t curr_migr_unit)
 366 {
 367
 368         vol->curr_migr_unit = curr_migr_unit & 0xffffffff;
 369         vol->curr_migr_unit_hi = curr_migr_unit >> 32;
 370 }
 371
 372 static char *
 373 intel_status2str(int status)
 374 {
 375
 376         switch (status) {
 377         case INTEL_S_READY:
 378                 return ("READY");
 379         case INTEL_S_UNINITIALIZED:
 380                 return ("UNINITIALIZED");
 381         case INTEL_S_DEGRADED:
 382                 return ("DEGRADED");
 383         case INTEL_S_FAILURE:
 384                 return ("FAILURE");
 385         default:
 386                 return ("UNKNOWN");
 387         }
 388 }
 389
 390 static char *
 391 intel_type2str(int type)
 392 {
 393
 394         switch (type) {
 395         case INTEL_T_RAID0:
 396                 return ("RAID0");
 397         case INTEL_T_RAID1:
 398                 return ("RAID1");
 399         case INTEL_T_RAID5:
 400                 return ("RAID5");
 401         default:
 402                 return ("UNKNOWN");
 403         }
 404 }
 405
 406 static char *
 407 intel_cngst2str(int cng_state)
 408 {
 409
 410         switch (cng_state) {
 411         case INTEL_CNGST_UPDATED:
 412                 return ("UPDATED");
 413         case INTEL_CNGST_NEEDS_UPDATE:
 414                 return ("NEEDS_UPDATE");
 415         case INTEL_CNGST_MASTER_MISSING:
 416                 return ("MASTER_MISSING");
 417         default:
 418                 return ("UNKNOWN");
 419         }
 420 }
 421
 422 static char *
 423 intel_mt2str(int type)
 424 {
 425
 426         switch (type) {
 427         case INTEL_MT_INIT:
 428                 return ("INIT");
 429         case INTEL_MT_REBUILD:
 430                 return ("REBUILD");
 431         case INTEL_MT_VERIFY:
 432                 return ("VERIFY");
 433         case INTEL_MT_GEN_MIGR:
 434                 return ("GEN_MIGR");
 435         case INTEL_MT_STATE_CHANGE:
 436                 return ("STATE_CHANGE");
 437         case INTEL_MT_REPAIR:
 438                 return ("REPAIR");
 439         default:
 440                 return ("UNKNOWN");
 441         }
 442 }
 443
 444 static void
 445 g_raid_md_intel_print(struct intel_raid_conf *meta)
 446 {
 447         struct intel_raid_vol *mvol;
 448         struct intel_raid_map *mmap;
 449         int i, j, k;
 450
 451         if (g_raid_debug < 1)
 452                 return;
 453
 454         printf("********* ATA Intel MatrixRAID Metadata *********\n");
 455         printf("intel_id            <%.24s>\n", meta->intel_id);
 456         printf("version             <%.6s>\n", meta->version);
 457         printf("checksum            0x%08x\n", meta->checksum);
 458         printf("config_size         0x%08x\n", meta->config_size);
 459         printf("config_id           0x%08x\n", meta->config_id);
 460         printf("generation          0x%08x\n", meta->generation);
 461         printf("error_log_size      %d\n", meta->error_log_size);
 462         printf("attributes          0x%b\n", meta->attributes,
 463                 "\020"
 464                 "\001RAID0"
 465                 "\002RAID1"
 466                 "\003RAID10"
 467                 "\004RAID1E"
 468                 "\005RAID15"
 469                 "\006RAIDCNG"
 470                 "\007EXT_STRIP"
 471                 "\032NVM_CACHE"
 472                 "\0332TB_DISK"
 473                 "\034BBM"
 474                 "\035NVM_CACHE"
 475                 "\0362TB"
 476                 "\037PM"
 477                 "\040CHECKSUM");
 478         printf("total_disks         %u\n", meta->total_disks);
 479         printf("total_volumes       %u\n", meta->total_volumes);
 480         printf("error_log_pos       %u\n", meta->error_log_pos);
 481         printf("cache_size          %u\n", meta->cache_size);
 482         printf("orig_config_id      0x%08x\n", meta->orig_config_id);
 483         printf("pwr_cycle_count     %u\n", meta->pwr_cycle_count);
 484         printf("bbm_log_size        %u\n", meta->bbm_log_size);
 485         printf("Flags: S - Spare, A - Assigned, F - Failed, O - Online, D - Disabled\n");
 486         printf("DISK#   serial disk_sectors disk_sectors_hi disk_id flags owner\n");
 487         for (i = 0; i < meta->total_disks; i++ ) {
 488                 printf("    %d   <%.16s> %u %u 0x%08x 0x%b %08x\n", i,
 489                     meta->disk[i].serial, meta->disk[i].sectors,
 490                     meta->disk[i].sectors_hi, meta->disk[i].id,
 491                     meta->disk[i].flags, "\20\01S\02A\03F\04O\05D",
 492                     meta->disk[i].owner_cfg_num);
 493         }
 494         for (i = 0; i < meta->total_volumes; i++) {
 495                 mvol = intel_get_volume(meta, i);
 496                 printf(" ****** Volume %d ******\n", i);
 497                 printf(" name               %.16s\n", mvol->name);
 498                 printf(" total_sectors      %ju\n", mvol->total_sectors);
 499                 printf(" state              0x%b\n", mvol->state,
 500                         "\020"
 501                         "\001BOOTABLE"
 502                         "\002BOOT_DEVICE"
 503                         "\003READ_COALESCING"
 504                         "\004WRITE_COALESCING"
 505                         "\005LAST_SHUTDOWN_DIRTY"
 506                         "\006HIDDEN_AT_BOOT"
 507                         "\007CURRENTLY_HIDDEN"
 508                         "\010VERIFY_AND_FIX"
 509                         "\011MAP_STATE_UNINIT"
 510                         "\012NO_AUTO_RECOVERY"
 511                         "\013CLONE_N_GO"
 512                         "\014CLONE_MAN_SYNC"
 513                         "\015CNG_MASTER_DISK_NUM");
 514                 printf(" reserved           %u\n", mvol->reserved);
 515                 printf(" migr_priority      %u\n", mvol->migr_priority);
 516                 printf(" num_sub_vols       %u\n", mvol->num_sub_vols);
 517                 printf(" tid                %u\n", mvol->tid);
 518                 printf(" cng_master_disk    %u\n", mvol->cng_master_disk);
 519                 printf(" cache_policy       %u\n", mvol->cache_policy);
 520                 printf(" cng_state          %u (%s)\n", mvol->cng_state,
 521                         intel_cngst2str(mvol->cng_state));
 522                 printf(" cng_sub_state      %u\n", mvol->cng_sub_state);
 523                 printf(" curr_migr_unit     %u\n", mvol->curr_migr_unit);
 524                 printf(" curr_migr_unit_hi  %u\n", mvol->curr_migr_unit_hi);
 525                 printf(" checkpoint_id      %u\n", mvol->checkpoint_id);
 526                 printf(" migr_state         %u\n", mvol->migr_state);
 527                 printf(" migr_type          %u (%s)\n", mvol->migr_type,
 528                         intel_mt2str(mvol->migr_type));
 529                 printf(" dirty              %u\n", mvol->dirty);
 530                 printf(" fs_state           %u\n", mvol->fs_state);
 531                 printf(" verify_errors      %u\n", mvol->verify_errors);
 532                 printf(" bad_blocks         %u\n", mvol->bad_blocks);
 533
 534                 for (j = 0; j < (mvol->migr_state ? 2 : 1); j++) {
 535                         printf("  *** Map %d ***\n", j);
 536                         mmap = intel_get_map(mvol, j);
 537                         printf("  offset            %u\n", mmap->offset);
 538                         printf("  offset_hi         %u\n", mmap->offset_hi);
 539                         printf("  disk_sectors      %u\n", mmap->disk_sectors);
 540                         printf("  disk_sectors_hi   %u\n", mmap->disk_sectors_hi);
 541                         printf("  stripe_count      %u\n", mmap->stripe_count);
 542                         printf("  stripe_count_hi   %u\n", mmap->stripe_count_hi);
 543                         printf("  strip_sectors     %u\n", mmap->strip_sectors);
 544                         printf("  status            %u (%s)\n", mmap->status,
 545                                 intel_status2str(mmap->status));
 546                         printf("  type              %u (%s)\n", mmap->type,
 547                                 intel_type2str(mmap->type));
 548                         printf("  total_disks       %u\n", mmap->total_disks);
 549                         printf("  total_domains     %u\n", mmap->total_domains);
 550                         printf("  failed_disk_num   %u\n", mmap->failed_disk_num);
 551                         printf("  ddf               %u\n", mmap->ddf);
 552                         printf("  disk_idx         ");
 553                         for (k = 0; k < mmap->total_disks; k++)
 554                                 printf(" 0x%08x", mmap->disk_idx[k]);
 555                         printf("\n");
 556                 }
 557         }
 558         printf("=================================================\n");
 559 }
 560
 561 static struct intel_raid_conf *
 562 intel_meta_copy(struct intel_raid_conf *meta)
 563 {
 564         struct intel_raid_conf *nmeta;
 565
 566         nmeta = malloc(meta->config_size, M_MD_INTEL, M_WAITOK);
 567         memcpy(nmeta, meta, meta->config_size);
 568         return (nmeta);
 569 }
 570
 571 static int
 572 intel_meta_find_disk(struct intel_raid_conf *meta, char *serial)
 573 {
 574         int pos;
 575
 576         for (pos = 0; pos < meta->total_disks; pos++) {
 577                 if (strncmp(meta->disk[pos].serial,
 578                     serial, INTEL_SERIAL_LEN) == 0)
 579                         return (pos);
 580         }
 581         return (-1);
 582 }
 583
 584 static struct intel_raid_conf *
 585 intel_meta_read(struct g_consumer *cp)
 586 {
 587         struct g_provider *pp;
 588         struct intel_raid_conf *meta;
 589         struct intel_raid_vol *mvol;
 590         struct intel_raid_map *mmap, *mmap1;
 591         char *buf;
 592         int error, i, j, k, left, size;
 593         uint32_t checksum, *ptr;
 594
 595         pp = cp->provider;
 596
 597         /* Read the anchor sector. */
 598         buf = g_read_data(cp,
 599             pp->mediasize - pp->sectorsize * 2, pp->sectorsize, &error);
 600         if (buf == NULL) {
 601                 G_RAID_DEBUG(1, "Cannot read metadata from %s (error=%d).",
 602                     pp->name, error);
 603                 return (NULL);
 604         }
 605         meta = (struct intel_raid_conf *)buf;
 606
 607         /* Check if this is an Intel RAID struct */
 608         if (strncmp(meta->intel_id, INTEL_MAGIC, strlen(INTEL_MAGIC))) {
 609                 G_RAID_DEBUG(1, "Intel signature check failed on %s", pp->name);
 610                 g_free(buf);
 611                 return (NULL);
 612         }
 613         if (meta->config_size > 65536 ||
 614             meta->config_size < sizeof(struct intel_raid_conf)) {
 615                 G_RAID_DEBUG(1, "Intel metadata size looks wrong: %d",
 616                     meta->config_size);
 617                 g_free(buf);
 618                 return (NULL);
 619         }
 620         size = meta->config_size;
 621         meta = malloc(size, M_MD_INTEL, M_WAITOK);
 622         memcpy(meta, buf, min(size, pp->sectorsize));
 623         g_free(buf);
 624
 625         /* Read all the rest, if needed. */
 626         if (meta->config_size > pp->sectorsize) {
 627                 left = (meta->config_size - 1) / pp->sectorsize;
 628                 buf = g_read_data(cp,
 629                     pp->mediasize - pp->sectorsize * (2 + left),
 630                     pp->sectorsize * left, &error);
 631                 if (buf == NULL) {
 632                         G_RAID_DEBUG(1, "Cannot read remaining metadata"
 633                             " part from %s (error=%d).",
 634                             pp->name, error);
 635                         free(meta, M_MD_INTEL);
 636                         return (NULL);
 637                 }
 638                 memcpy(((char *)meta) + pp->sectorsize, buf,
 639                     pp->sectorsize * left);
 640                 g_free(buf);
 641         }
 642
 643         /* Check metadata checksum. */
 644         for (checksum = 0, ptr = (uint32_t *)meta, i = 0;
 645             i < (meta->config_size / sizeof(uint32_t)); i++) {
 646                 checksum += *ptr++;
 647         }
 648         checksum -= meta->checksum;
 649         if (checksum != meta->checksum) {
 650                 G_RAID_DEBUG(1, "Intel checksum check failed on %s", pp->name);
 651                 free(meta, M_MD_INTEL);
 652                 return (NULL);
 653         }
 654
 655         /* Validate metadata size. */
 656         size = sizeof(struct intel_raid_conf) +
 657             sizeof(struct intel_raid_disk) * (meta->total_disks - 1) +
 658             sizeof(struct intel_raid_vol) * meta->total_volumes;
 659         if (size > meta->config_size) {
 660 badsize:
 661                 G_RAID_DEBUG(1, "Intel metadata size incorrect %d < %d",
 662                     meta->config_size, size);
 663                 free(meta, M_MD_INTEL);
 664                 return (NULL);
 665         }
 666         for (i = 0; i < meta->total_volumes; i++) {
 667                 mvol = intel_get_volume(meta, i);
 668                 mmap = intel_get_map(mvol, 0);
 669                 size += 4 * (mmap->total_disks - 1);
 670                 if (size > meta->config_size)
 671                         goto badsize;
 672                 if (mvol->migr_state) {
 673                         size += sizeof(struct intel_raid_map);
 674                         if (size > meta->config_size)
 675                                 goto badsize;
 676                         mmap = intel_get_map(mvol, 1);
 677                         size += 4 * (mmap->total_disks - 1);
 678                         if (size > meta->config_size)
 679                                 goto badsize;
 680                 }
 681         }
 682
 683         g_raid_md_intel_print(meta);
 684
 685         if (strncmp(meta->version, INTEL_VERSION_1300, 6) > 0) {
 686                 G_RAID_DEBUG(1, "Intel unsupported version: '%.6s'",
 687                     meta->version);
 688                 free(meta, M_MD_INTEL);
 689                 return (NULL);
 690         }
 691
 692         if (strncmp(meta->version, INTEL_VERSION_1300, 6) >= 0 &&
 693             (meta->attributes & ~INTEL_ATTR_SUPPORTED) != 0) {
 694                 G_RAID_DEBUG(1, "Intel unsupported attributes: 0x%08x",
 695                     meta->attributes & ~INTEL_ATTR_SUPPORTED);
 696                 free(meta, M_MD_INTEL);
 697                 return (NULL);
 698         }
 699
 700         /* Validate disk indexes. */
 701         for (i = 0; i < meta->total_volumes; i++) {
 702                 mvol = intel_get_volume(meta, i);
 703                 for (j = 0; j < (mvol->migr_state ? 2 : 1); j++) {
 704                         mmap = intel_get_map(mvol, j);
 705                         for (k = 0; k < mmap->total_disks; k++) {
 706                                 if ((mmap->disk_idx[k] & INTEL_DI_IDX) >
 707                                     meta->total_disks) {
 708                                         G_RAID_DEBUG(1, "Intel metadata disk"
 709                                             " index %d too big (>%d)",
 710                                             mmap->disk_idx[k] & INTEL_DI_IDX,
 711                                             meta->total_disks);
 712                                         free(meta, M_MD_INTEL);
 713                                         return (NULL);
 714                                 }
 715                         }
 716                 }
 717         }
 718
 719         /* Validate migration types. */
 720         for (i = 0; i < meta->total_volumes; i++) {
 721                 mvol = intel_get_volume(meta, i);
 722                 /* Deny unknown migration types. */
 723                 if (mvol->migr_state &&
 724                     mvol->migr_type != INTEL_MT_INIT &&
 725                     mvol->migr_type != INTEL_MT_REBUILD &&
 726                     mvol->migr_type != INTEL_MT_VERIFY &&
 727                     mvol->migr_type != INTEL_MT_GEN_MIGR &&
 728                     mvol->migr_type != INTEL_MT_REPAIR) {
 729                         G_RAID_DEBUG(1, "Intel metadata has unsupported"
 730                             " migration type %d", mvol->migr_type);
 731                         free(meta, M_MD_INTEL);
 732                         return (NULL);
 733                 }
 734                 /* Deny general migrations except SINGLE->RAID1. */
 735                 if (mvol->migr_state &&
 736                     mvol->migr_type == INTEL_MT_GEN_MIGR) {
 737                         mmap = intel_get_map(mvol, 0);
 738                         mmap1 = intel_get_map(mvol, 1);
 739                         if (mmap1->total_disks != 1 ||
 740                             mmap->type != INTEL_T_RAID1 ||
 741                             mmap->total_disks != 2 ||
 742                             mmap->offset != mmap1->offset ||
 743                             mmap->disk_sectors != mmap1->disk_sectors ||
 744                             mmap->total_domains != mmap->total_disks ||
 745                             mmap->offset_hi != mmap1->offset_hi ||
 746                             mmap->disk_sectors_hi != mmap1->disk_sectors_hi ||
 747                             (mmap->disk_idx[0] != mmap1->disk_idx[0] &&
 748                              mmap->disk_idx[0] != mmap1->disk_idx[1])) {
 749                                 G_RAID_DEBUG(1, "Intel metadata has unsupported"
 750                                     " variant of general migration");
 751                                 free(meta, M_MD_INTEL);
 752                                 return (NULL);
 753                         }
 754                 }
 755         }
 756
 757         return (meta);
 758 }
 759
 760 static int
 761 intel_meta_write(struct g_consumer *cp, struct intel_raid_conf *meta)
 762 {
 763         struct g_provider *pp;
 764         char *buf;
 765         int error, i, sectors;
 766         uint32_t checksum, *ptr;
 767
 768         pp = cp->provider;
 769
 770         /* Recalculate checksum for case if metadata were changed. */
 771         meta->checksum = 0;
 772         for (checksum = 0, ptr = (uint32_t *)meta, i = 0;
 773             i < (meta->config_size / sizeof(uint32_t)); i++) {
 774                 checksum += *ptr++;
 775         }
 776         meta->checksum = checksum;
 777
 778         /* Create and fill buffer. */
 779         sectors = howmany(meta->config_size, pp->sectorsize);
 780         buf = malloc(sectors * pp->sectorsize, M_MD_INTEL, M_WAITOK | M_ZERO);
 781         if (sectors > 1) {
 782                 memcpy(buf, ((char *)meta) + pp->sectorsize,
 783                     (sectors - 1) * pp->sectorsize);
 784         }
 785         memcpy(buf + (sectors - 1) * pp->sectorsize, meta, pp->sectorsize);
 786
 787         error = g_write_data(cp,
 788             pp->mediasize - pp->sectorsize * (1 + sectors),
 789             buf, pp->sectorsize * sectors);
 790         if (error != 0) {
 791                 G_RAID_DEBUG(1, "Cannot write metadata to %s (error=%d).",
 792                     pp->name, error);
 793         }
 794
 795         free(buf, M_MD_INTEL);
 796         return (error);
 797 }
 798
 799 static int
 800 intel_meta_erase(struct g_consumer *cp)
 801 {
 802         struct g_provider *pp;
 803         char *buf;
 804         int error;
 805
 806         pp = cp->provider;
 807         buf = malloc(pp->sectorsize, M_MD_INTEL, M_WAITOK | M_ZERO);
 808         error = g_write_data(cp,
 809             pp->mediasize - 2 * pp->sectorsize,
 810             buf, pp->sectorsize);
 811         if (error != 0) {
 812                 G_RAID_DEBUG(1, "Cannot erase metadata on %s (error=%d).",
 813                     pp->name, error);
 814         }
 815         free(buf, M_MD_INTEL);
 816         return (error);
 817 }
 818
 819 static int
 820 intel_meta_write_spare(struct g_consumer *cp, struct intel_raid_disk *d)
 821 {
 822         struct intel_raid_conf *meta;
 823         int error;
 824
 825         /* Fill anchor and single disk. */
 826         meta = malloc(INTEL_MAX_MD_SIZE(1), M_MD_INTEL, M_WAITOK | M_ZERO);
 827         memcpy(&meta->intel_id[0], INTEL_MAGIC, sizeof(INTEL_MAGIC) - 1);
 828         memcpy(&meta->version[0], INTEL_VERSION_1000,
 829             sizeof(INTEL_VERSION_1000) - 1);
 830         meta->config_size = INTEL_MAX_MD_SIZE(1);
 831         meta->config_id = meta->orig_config_id = arc4random();
 832         meta->generation = 1;
 833         meta->total_disks = 1;
 834         meta->disk[0] = *d;
 835         error = intel_meta_write(cp, meta);
 836         free(meta, M_MD_INTEL);
 837         return (error);
 838 }
 839
 840 static struct g_raid_disk *
 841 g_raid_md_intel_get_disk(struct g_raid_softc *sc, int id)
 842 {
 843         struct g_raid_disk      *disk;
 844         struct g_raid_md_intel_perdisk *pd;
 845
 846         TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
 847                 pd = (struct g_raid_md_intel_perdisk *)disk->d_md_data;
 848                 if (pd->pd_disk_pos == id)
 849                         break;
 850         }
 851         return (disk);
 852 }
 853
 854 static int
 855 g_raid_md_intel_supported(int level, int qual, int disks, int force)
 856 {
 857
 858         switch (level) {
 859         case G_RAID_VOLUME_RL_RAID0:
 860                 if (disks < 1)
 861                         return (0);
 862                 if (!force && (disks < 2 || disks > 6))
 863                         return (0);
 864                 break;
 865         case G_RAID_VOLUME_RL_RAID1:
 866                 if (disks < 1)
 867                         return (0);
 868                 if (!force && (disks != 2))
 869                         return (0);
 870                 break;
 871         case G_RAID_VOLUME_RL_RAID1E:
 872                 if (disks < 2)
 873                         return (0);
 874                 if (!force && (disks != 4))
 875                         return (0);
 876                 break;
 877         case G_RAID_VOLUME_RL_RAID5:
 878                 if (disks < 3)
 879                         return (0);
 880                 if (!force && disks > 6)
 881                         return (0);
 882                 if (qual != G_RAID_VOLUME_RLQ_R5LA)
 883                         return (0);
 884                 break;
 885         default:
 886                 return (0);
 887         }
 888         if (level != G_RAID_VOLUME_RL_RAID5 && qual != G_RAID_VOLUME_RLQ_NONE)
 889                 return (0);
 890         return (1);
 891 }
 892
 893 static struct g_raid_volume *
 894 g_raid_md_intel_get_volume(struct g_raid_softc *sc, int id)
 895 {
 896         struct g_raid_volume    *mvol;
 897         struct g_raid_md_intel_pervolume *pv;
 898
 899         TAILQ_FOREACH(mvol, &sc->sc_volumes, v_next) {
 900                 pv = mvol->v_md_data;
 901                 if (pv->pv_volume_pos == id)
 902                         break;
 903         }
 904         return (mvol);
 905 }
 906
 907 static int
 908 g_raid_md_intel_start_disk(struct g_raid_disk *disk)
 909 {
 910         struct g_raid_softc *sc;
 911         struct g_raid_subdisk *sd, *tmpsd;
 912         struct g_raid_disk *olddisk, *tmpdisk;
 913         struct g_raid_md_object *md;
 914         struct g_raid_md_intel_object *mdi;
 915         struct g_raid_md_intel_pervolume *pv;
 916         struct g_raid_md_intel_perdisk *pd, *oldpd;
 917         struct intel_raid_conf *meta;
 918         struct intel_raid_vol *mvol;
 919         struct intel_raid_map *mmap0, *mmap1;
 920         int disk_pos, resurrection = 0, migr_global, i;
 921
 922         sc = disk->d_softc;
 923         md = sc->sc_md;
 924         mdi = (struct g_raid_md_intel_object *)md;
 925         meta = mdi->mdio_meta;
 926         pd = (struct g_raid_md_intel_perdisk *)disk->d_md_data;
 927         olddisk = NULL;
 928
 929         /* Find disk position in metadata by its serial. */
 930         disk_pos = intel_meta_find_disk(meta, pd->pd_disk_meta.serial);
 931         if (disk_pos < 0) {
 932                 G_RAID_DEBUG1(1, sc, "Unknown, probably new or stale disk");
 933                 /* Failed stale disk is useless for us. */
 934                 if ((pd->pd_disk_meta.flags & INTEL_F_FAILED) &&
 935                     !(pd->pd_disk_meta.flags & INTEL_F_DISABLED)) {
 936                         g_raid_change_disk_state(disk, G_RAID_DISK_S_STALE_FAILED);
 937                         return (0);
 938                 }
 939                 /* If we are in the start process, that's all for now. */
 940                 if (!mdi->mdio_started)
 941                         goto nofit;
 942                 /*
 943                  * If we have already started - try to get use of the disk.
 944                  * Try to replace OFFLINE disks first, then FAILED.
 945                  */
 946                 TAILQ_FOREACH(tmpdisk, &sc->sc_disks, d_next) {
 947                         if (tmpdisk->d_state != G_RAID_DISK_S_OFFLINE &&
 948                             tmpdisk->d_state != G_RAID_DISK_S_FAILED)
 949                                 continue;
 950                         /* Make sure this disk is big enough. */
 951                         TAILQ_FOREACH(sd, &tmpdisk->d_subdisks, sd_next) {
 952                                 off_t disk_sectors =
 953                                     intel_get_disk_sectors(&pd->pd_disk_meta);
 954
 955                                 if (sd->sd_offset + sd->sd_size + 4096 >
 956                                     disk_sectors * 512) {
 957                                         G_RAID_DEBUG1(1, sc,
 958                                             "Disk too small (%llu < %llu)",
 959                                             (unsigned long long)
 960                                             disk_sectors * 512,
 961                                             (unsigned long long)
 962                                             sd->sd_offset + sd->sd_size + 4096);
 963                                         break;
 964                                 }
 965                         }
 966                         if (sd != NULL)
 967                                 continue;
 968                         if (tmpdisk->d_state == G_RAID_DISK_S_OFFLINE) {
 969                                 olddisk = tmpdisk;
 970                                 break;
 971                         } else if (olddisk == NULL)
 972                                 olddisk = tmpdisk;
 973                 }
 974                 if (olddisk == NULL) {
 975 nofit:
 976                         if (pd->pd_disk_meta.flags & INTEL_F_SPARE) {
 977                                 g_raid_change_disk_state(disk,
 978                                     G_RAID_DISK_S_SPARE);
 979                                 return (1);
 980                         } else {
 981                                 g_raid_change_disk_state(disk,
 982                                     G_RAID_DISK_S_STALE);
 983                                 return (0);
 984                         }
 985                 }
 986                 oldpd = (struct g_raid_md_intel_perdisk *)olddisk->d_md_data;
 987                 disk_pos = oldpd->pd_disk_pos;
 988                 resurrection = 1;
 989         }
 990
 991         if (olddisk == NULL) {
 992                 /* Find placeholder by position. */
 993                 olddisk = g_raid_md_intel_get_disk(sc, disk_pos);
 994                 if (olddisk == NULL)
 995                         panic("No disk at position %d!", disk_pos);
 996                 if (olddisk->d_state != G_RAID_DISK_S_OFFLINE) {
 997                         G_RAID_DEBUG1(1, sc, "More than one disk for pos %d",
 998                             disk_pos);
 999                         g_raid_change_disk_state(disk, G_RAID_DISK_S_STALE);
1000                         return (0);
1001                 }
1002                 oldpd = (struct g_raid_md_intel_perdisk *)olddisk->d_md_data;
1003         }
1004
1005         /* Replace failed disk or placeholder with new disk. */
1006         TAILQ_FOREACH_SAFE(sd, &olddisk->d_subdisks, sd_next, tmpsd) {
1007                 TAILQ_REMOVE(&olddisk->d_subdisks, sd, sd_next);
1008                 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next);
1009                 sd->sd_disk = disk;
1010         }
1011         oldpd->pd_disk_pos = -2;
1012         pd->pd_disk_pos = disk_pos;
1013
1014         /* If it was placeholder -- destroy it. */
1015         if (olddisk->d_state == G_RAID_DISK_S_OFFLINE) {
1016                 g_raid_destroy_disk(olddisk);
1017         } else {
1018                 /* Otherwise, make it STALE_FAILED. */
1019                 g_raid_change_disk_state(olddisk, G_RAID_DISK_S_STALE_FAILED);
1020                 /* Update global metadata just in case. */
1021                 memcpy(&meta->disk[disk_pos], &pd->pd_disk_meta,
1022                     sizeof(struct intel_raid_disk));
1023         }
1024
1025         /* Welcome the new disk. */
1026         if ((meta->disk[disk_pos].flags & INTEL_F_DISABLED) &&
1027             !(pd->pd_disk_meta.flags & INTEL_F_SPARE))
1028                 g_raid_change_disk_state(disk, G_RAID_DISK_S_DISABLED);
1029         else if (resurrection)
1030                 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE);
1031         else if (meta->disk[disk_pos].flags & INTEL_F_FAILED)
1032                 g_raid_change_disk_state(disk, G_RAID_DISK_S_FAILED);
1033         else if (meta->disk[disk_pos].flags & INTEL_F_SPARE)
1034                 g_raid_change_disk_state(disk, G_RAID_DISK_S_SPARE);
1035         else
1036                 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE);
1037         TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) {
1038                 pv = sd->sd_volume->v_md_data;
1039                 mvol = intel_get_volume(meta, pv->pv_volume_pos);
1040                 mmap0 = intel_get_map(mvol, 0);
1041                 if (mvol->migr_state)
1042                         mmap1 = intel_get_map(mvol, 1);
1043                 else
1044                         mmap1 = mmap0;
1045
1046                 migr_global = 1;
1047                 for (i = 0; i < mmap0->total_disks; i++) {
1048                         if ((mmap0->disk_idx[i] & INTEL_DI_RBLD) == 0 &&
1049                             (mmap1->disk_idx[i] & INTEL_DI_RBLD) != 0)
1050                                 migr_global = 0;
1051                 }
1052
1053                 if ((meta->disk[disk_pos].flags & INTEL_F_DISABLED) &&
1054                     !(pd->pd_disk_meta.flags & INTEL_F_SPARE)) {
1055                         /* Disabled disk, useless. */
1056                         g_raid_change_subdisk_state(sd,
1057                             G_RAID_SUBDISK_S_NONE);
1058                 } else if (resurrection) {
1059                         /* Stale disk, almost same as new. */
1060                         g_raid_change_subdisk_state(sd,
1061                             G_RAID_SUBDISK_S_NEW);
1062                 } else if (meta->disk[disk_pos].flags & INTEL_F_FAILED) {
1063                         /* Failed disk, almost useless. */
1064                         g_raid_change_subdisk_state(sd,
1065                             G_RAID_SUBDISK_S_FAILED);
1066                 } else if (mvol->migr_state == 0) {
1067                         if (mmap0->status == INTEL_S_UNINITIALIZED &&
1068                             (!pv->pv_cng || pv->pv_cng_master_disk != disk_pos)) {
1069                                 /* Freshly created uninitialized volume. */
1070                                 g_raid_change_subdisk_state(sd,
1071                                     G_RAID_SUBDISK_S_UNINITIALIZED);
1072                         } else if (mmap0->disk_idx[sd->sd_pos] & INTEL_DI_RBLD) {
1073                                 /* Freshly inserted disk. */
1074                                 g_raid_change_subdisk_state(sd,
1075                                     G_RAID_SUBDISK_S_NEW);
1076                         } else if (mvol->dirty && (!pv->pv_cng ||
1077                             pv->pv_cng_master_disk != disk_pos)) {
1078                                 /* Dirty volume (unclean shutdown). */
1079                                 g_raid_change_subdisk_state(sd,
1080                                     G_RAID_SUBDISK_S_STALE);
1081                         } else {
1082                                 /* Up to date disk. */
1083                                 g_raid_change_subdisk_state(sd,
1084                                     G_RAID_SUBDISK_S_ACTIVE);
1085                         }
1086                 } else if (mvol->migr_type == INTEL_MT_INIT ||
1087                            mvol->migr_type == INTEL_MT_REBUILD) {
1088                         if (mmap0->disk_idx[sd->sd_pos] & INTEL_DI_RBLD) {
1089                                 /* Freshly inserted disk. */
1090                                 g_raid_change_subdisk_state(sd,
1091                                     G_RAID_SUBDISK_S_NEW);
1092                         } else if (mmap1->disk_idx[sd->sd_pos] & INTEL_DI_RBLD) {
1093                                 /* Rebuilding disk. */
1094                                 g_raid_change_subdisk_state(sd,
1095                                     G_RAID_SUBDISK_S_REBUILD);
1096                                 if (mvol->dirty) {
1097                                         sd->sd_rebuild_pos = 0;
1098                                 } else {
1099                                         sd->sd_rebuild_pos =
1100                                             intel_get_vol_curr_migr_unit(mvol) *
1101                                             sd->sd_volume->v_strip_size *
1102                                             mmap0->total_domains;
1103                                 }
1104                         } else if (mvol->migr_type == INTEL_MT_INIT &&
1105                             migr_global) {
1106                                 /* Freshly created uninitialized volume. */
1107                                 g_raid_change_subdisk_state(sd,
1108                                     G_RAID_SUBDISK_S_UNINITIALIZED);
1109                         } else if (mvol->dirty && (!pv->pv_cng ||
1110                             pv->pv_cng_master_disk != disk_pos)) {
1111                                 /* Dirty volume (unclean shutdown). */
1112                                 g_raid_change_subdisk_state(sd,
1113                                     G_RAID_SUBDISK_S_STALE);
1114                         } else {
1115                                 /* Up to date disk. */
1116                                 g_raid_change_subdisk_state(sd,
1117                                     G_RAID_SUBDISK_S_ACTIVE);
1118                         }
1119                 } else if (mvol->migr_type == INTEL_MT_VERIFY ||
1120                            mvol->migr_type == INTEL_MT_REPAIR) {
1121                         if (mmap0->disk_idx[sd->sd_pos] & INTEL_DI_RBLD) {
1122                                 /* Freshly inserted disk. */
1123                                 g_raid_change_subdisk_state(sd,
1124                                     G_RAID_SUBDISK_S_NEW);
1125                         } else if ((mmap1->disk_idx[sd->sd_pos] & INTEL_DI_RBLD) ||
1126                             migr_global) {
1127                                 /* Resyncing disk. */
1128                                 g_raid_change_subdisk_state(sd,
1129                                     G_RAID_SUBDISK_S_RESYNC);
1130                                 if (mvol->dirty) {
1131                                         sd->sd_rebuild_pos = 0;
1132                                 } else {
1133                                         sd->sd_rebuild_pos =
1134                                             intel_get_vol_curr_migr_unit(mvol) *
1135                                             sd->sd_volume->v_strip_size *
1136                                             mmap0->total_domains;
1137                                 }
1138                         } else if (mvol->dirty) {
1139                                 /* Dirty volume (unclean shutdown). */
1140                                 g_raid_change_subdisk_state(sd,
1141                                     G_RAID_SUBDISK_S_STALE);
1142                         } else {
1143                                 /* Up to date disk. */
1144                                 g_raid_change_subdisk_state(sd,
1145                                     G_RAID_SUBDISK_S_ACTIVE);
1146                         }
1147                 } else if (mvol->migr_type == INTEL_MT_GEN_MIGR) {
1148                         if ((mmap1->disk_idx[0] & INTEL_DI_IDX) != disk_pos) {
1149                                 /* Freshly inserted disk. */
1150                                 g_raid_change_subdisk_state(sd,
1151                                     G_RAID_SUBDISK_S_NEW);
1152                         } else {
1153                                 /* Up to date disk. */
1154                                 g_raid_change_subdisk_state(sd,
1155                                     G_RAID_SUBDISK_S_ACTIVE);
1156                         }
1157                 }
1158                 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW,
1159                     G_RAID_EVENT_SUBDISK);
1160         }
1161
1162         /* Update status of our need for spare. */
1163         if (mdi->mdio_started) {
1164                 mdi->mdio_incomplete =
1165                     (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) +
1166                      g_raid_ndisks(sc, G_RAID_DISK_S_DISABLED) <
1167                      meta->total_disks);
1168         }
1169
1170         return (resurrection);
1171 }
1172
1173 static void
1174 g_disk_md_intel_retaste(void *arg, int pending)
1175 {
1176
1177         G_RAID_DEBUG(1, "Array is not complete, trying to retaste.");
1178         g_retaste(&g_raid_class);
1179         free(arg, M_MD_INTEL);
1180 }
1181
1182 static void
1183 g_raid_md_intel_refill(struct g_raid_softc *sc)
1184 {
1185         struct g_raid_md_object *md;
1186         struct g_raid_md_intel_object *mdi;
1187         struct intel_raid_conf *meta;
1188         struct g_raid_disk *disk;
1189         struct task *task;
1190         int update, na;
1191
1192         md = sc->sc_md;
1193         mdi = (struct g_raid_md_intel_object *)md;
1194         meta = mdi->mdio_meta;
1195         update = 0;
1196         do {
1197                 /* Make sure we miss anything. */
1198                 na = g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) +
1199                     g_raid_ndisks(sc, G_RAID_DISK_S_DISABLED);
1200                 if (na == meta->total_disks)
1201                         break;
1202
1203                 G_RAID_DEBUG1(1, md->mdo_softc,
1204                     "Array is not complete (%d of %d), "
1205                     "trying to refill.", na, meta->total_disks);
1206
1207                 /* Try to get use some of STALE disks. */
1208                 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1209                         if (disk->d_state == G_RAID_DISK_S_STALE) {
1210                                 update += g_raid_md_intel_start_disk(disk);
1211                                 if (disk->d_state == G_RAID_DISK_S_ACTIVE ||
1212                                     disk->d_state == G_RAID_DISK_S_DISABLED)
1213                                         break;
1214                         }
1215                 }
1216                 if (disk != NULL)
1217                         continue;
1218
1219                 /* Try to get use some of SPARE disks. */
1220                 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1221                         if (disk->d_state == G_RAID_DISK_S_SPARE) {
1222                                 update += g_raid_md_intel_start_disk(disk);
1223                                 if (disk->d_state == G_RAID_DISK_S_ACTIVE)
1224                                         break;
1225                         }
1226                 }
1227         } while (disk != NULL);
1228
1229         /* Write new metadata if we changed something. */
1230         if (update) {
1231                 g_raid_md_write_intel(md, NULL, NULL, NULL);
1232                 meta = mdi->mdio_meta;
1233         }
1234
1235         /* Update status of our need for spare. */
1236         mdi->mdio_incomplete = (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) +
1237             g_raid_ndisks(sc, G_RAID_DISK_S_DISABLED) < meta->total_disks);
1238
1239         /* Request retaste hoping to find spare. */
1240         if (mdi->mdio_incomplete) {
1241                 task = malloc(sizeof(struct task),
1242                     M_MD_INTEL, M_WAITOK | M_ZERO);
1243                 TASK_INIT(task, 0, g_disk_md_intel_retaste, task);
1244                 taskqueue_enqueue(taskqueue_swi, task);
1245         }
1246 }
1247
1248 static void
1249 g_raid_md_intel_start(struct g_raid_softc *sc)
1250 {
1251         struct g_raid_md_object *md;
1252         struct g_raid_md_intel_object *mdi;
1253         struct g_raid_md_intel_pervolume *pv;
1254         struct g_raid_md_intel_perdisk *pd;
1255         struct intel_raid_conf *meta;
1256         struct intel_raid_vol *mvol;
1257         struct intel_raid_map *mmap;
1258         struct g_raid_volume *vol;
1259         struct g_raid_subdisk *sd;
1260         struct g_raid_disk *disk;
1261         int i, j, disk_pos;
1262
1263         md = sc->sc_md;
1264         mdi = (struct g_raid_md_intel_object *)md;
1265         meta = mdi->mdio_meta;
1266
1267         /* Create volumes and subdisks. */
1268         for (i = 0; i < meta->total_volumes; i++) {
1269                 mvol = intel_get_volume(meta, i);
1270                 mmap = intel_get_map(mvol, 0);
1271                 vol = g_raid_create_volume(sc, mvol->name, mvol->tid - 1);
1272                 pv = malloc(sizeof(*pv), M_MD_INTEL, M_WAITOK | M_ZERO);
1273                 pv->pv_volume_pos = i;
1274                 pv->pv_cng = (mvol->state & INTEL_ST_CLONE_N_GO) != 0;
1275                 pv->pv_cng_man_sync = (mvol->state & INTEL_ST_CLONE_MAN_SYNC) != 0;
1276                 if (mvol->cng_master_disk < mmap->total_disks)
1277                         pv->pv_cng_master_disk = mvol->cng_master_disk;
1278                 vol->v_md_data = pv;
1279                 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_NONE;
1280                 if (mmap->type == INTEL_T_RAID0)
1281                         vol->v_raid_level = G_RAID_VOLUME_RL_RAID0;
1282                 else if (mmap->type == INTEL_T_RAID1 &&
1283                     mmap->total_domains >= 2 &&
1284                     mmap->total_domains <= mmap->total_disks) {
1285                         /* Assume total_domains is correct. */
1286                         if (mmap->total_domains == mmap->total_disks)
1287                                 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1;
1288                         else
1289                                 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1E;
1290                 } else if (mmap->type == INTEL_T_RAID1) {
1291                         /* total_domains looks wrong. */
1292                         if (mmap->total_disks <= 2)
1293                                 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1;
1294                         else
1295                                 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1E;
1296                 } else if (mmap->type == INTEL_T_RAID5) {
1297                         vol->v_raid_level = G_RAID_VOLUME_RL_RAID5;
1298                         vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_R5LA;
1299                 } else
1300                         vol->v_raid_level = G_RAID_VOLUME_RL_UNKNOWN;
1301                 vol->v_strip_size = (u_int)mmap->strip_sectors * 512; //ZZZ
1302                 vol->v_disks_count = mmap->total_disks;
1303                 vol->v_mediasize = (off_t)mvol->total_sectors * 512; //ZZZ
1304                 vol->v_sectorsize = 512; //ZZZ
1305                 for (j = 0; j < vol->v_disks_count; j++) {
1306                         sd = &vol->v_subdisks[j];
1307                         sd->sd_offset = intel_get_map_offset(mmap) * 512; //ZZZ
1308                         sd->sd_size = intel_get_map_disk_sectors(mmap) * 512; //ZZZ
1309                 }
1310                 g_raid_start_volume(vol);
1311         }
1312
1313         /* Create disk placeholders to store data for later writing. */
1314         for (disk_pos = 0; disk_pos < meta->total_disks; disk_pos++) {
1315                 pd = malloc(sizeof(*pd), M_MD_INTEL, M_WAITOK | M_ZERO);
1316                 pd->pd_disk_pos = disk_pos;
1317                 pd->pd_disk_meta = meta->disk[disk_pos];
1318                 disk = g_raid_create_disk(sc);
1319                 disk->d_md_data = (void *)pd;
1320                 disk->d_state = G_RAID_DISK_S_OFFLINE;
1321                 for (i = 0; i < meta->total_volumes; i++) {
1322                         mvol = intel_get_volume(meta, i);
1323                         mmap = intel_get_map(mvol, 0);
1324                         for (j = 0; j < mmap->total_disks; j++) {
1325                                 if ((mmap->disk_idx[j] & INTEL_DI_IDX) == disk_pos)
1326                                         break;
1327                         }
1328                         if (j == mmap->total_disks)
1329                                 continue;
1330                         vol = g_raid_md_intel_get_volume(sc, i);
1331                         sd = &vol->v_subdisks[j];
1332                         sd->sd_disk = disk;
1333                         TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next);
1334                 }
1335         }
1336
1337         /* Make all disks found till the moment take their places. */
1338         do {
1339                 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1340                         if (disk->d_state == G_RAID_DISK_S_NONE) {
1341                                 g_raid_md_intel_start_disk(disk);
1342                                 break;
1343                         }
1344                 }
1345         } while (disk != NULL);
1346
1347         mdi->mdio_started = 1;
1348         G_RAID_DEBUG1(0, sc, "Array started.");
1349         g_raid_md_write_intel(md, NULL, NULL, NULL);
1350
1351         /* Pickup any STALE/SPARE disks to refill array if needed. */
1352         g_raid_md_intel_refill(sc);
1353
1354         TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) {
1355                 g_raid_event_send(vol, G_RAID_VOLUME_E_START,
1356                     G_RAID_EVENT_VOLUME);
1357         }
1358
1359         callout_stop(&mdi->mdio_start_co);
1360         G_RAID_DEBUG1(1, sc, "root_mount_rel %p", mdi->mdio_rootmount);
1361         root_mount_rel(mdi->mdio_rootmount);
1362         mdi->mdio_rootmount = NULL;
1363 }
1364
1365 static void
1366 g_raid_md_intel_new_disk(struct g_raid_disk *disk)
1367 {
1368         struct g_raid_softc *sc;
1369         struct g_raid_md_object *md;
1370         struct g_raid_md_intel_object *mdi;
1371         struct intel_raid_conf *pdmeta;
1372         struct g_raid_md_intel_perdisk *pd;
1373
1374         sc = disk->d_softc;
1375         md = sc->sc_md;
1376         mdi = (struct g_raid_md_intel_object *)md;
1377         pd = (struct g_raid_md_intel_perdisk *)disk->d_md_data;
1378         pdmeta = pd->pd_meta;
1379
1380         if (mdi->mdio_started) {
1381                 if (g_raid_md_intel_start_disk(disk))
1382                         g_raid_md_write_intel(md, NULL, NULL, NULL);
1383         } else {
1384                 /* If we haven't started yet - check metadata freshness. */
1385                 if (mdi->mdio_meta == NULL ||
1386                     ((int32_t)(pdmeta->generation - mdi->mdio_generation)) > 0) {
1387                         G_RAID_DEBUG1(1, sc, "Newer disk");
1388                         if (mdi->mdio_meta != NULL)
1389                                 free(mdi->mdio_meta, M_MD_INTEL);
1390                         mdi->mdio_meta = intel_meta_copy(pdmeta);
1391                         mdi->mdio_generation = mdi->mdio_meta->generation;
1392                         mdi->mdio_disks_present = 1;
1393                 } else if (pdmeta->generation == mdi->mdio_generation) {
1394                         mdi->mdio_disks_present++;
1395                         G_RAID_DEBUG1(1, sc, "Matching disk (%d of %d up)",
1396                             mdi->mdio_disks_present,
1397                             mdi->mdio_meta->total_disks);
1398                 } else {
1399                         G_RAID_DEBUG1(1, sc, "Older disk");
1400                 }
1401                 /* If we collected all needed disks - start array. */
1402                 if (mdi->mdio_disks_present == mdi->mdio_meta->total_disks)
1403                         g_raid_md_intel_start(sc);
1404         }
1405 }
1406
1407 static void
1408 g_raid_intel_go(void *arg)
1409 {
1410         struct g_raid_softc *sc;
1411         struct g_raid_md_object *md;
1412         struct g_raid_md_intel_object *mdi;
1413
1414         sc = arg;
1415         md = sc->sc_md;
1416         mdi = (struct g_raid_md_intel_object *)md;
1417         if (!mdi->mdio_started) {
1418                 G_RAID_DEBUG1(0, sc, "Force array start due to timeout.");
1419                 g_raid_event_send(sc, G_RAID_NODE_E_START, 0);
1420         }
1421 }
1422
1423 static int
1424 g_raid_md_create_intel(struct g_raid_md_object *md, struct g_class *mp,
1425     struct g_geom **gp)
1426 {
1427         struct g_raid_softc *sc;
1428         struct g_raid_md_intel_object *mdi;
1429         char name[16];
1430
1431         mdi = (struct g_raid_md_intel_object *)md;
1432         mdi->mdio_config_id = mdi->mdio_orig_config_id = arc4random();
1433         mdi->mdio_generation = 0;
1434         snprintf(name, sizeof(name), "Intel-%08x", mdi->mdio_config_id);
1435         sc = g_raid_create_node(mp, name, md);
1436         if (sc == NULL)
1437                 return (G_RAID_MD_TASTE_FAIL);
1438         md->mdo_softc = sc;
1439         *gp = sc->sc_geom;
1440         return (G_RAID_MD_TASTE_NEW);
1441 }
1442
1443 /*
1444  * Return the last N characters of the serial label.  The Linux and
1445  * ataraid(7) code always uses the last 16 characters of the label to
1446  * store into the Intel meta format.  Generalize this to N characters
1447  * since that's easy.  Labels can be up to 20 characters for SATA drives
1448  * and up 251 characters for SAS drives.  Since intel controllers don't
1449  * support SAS drives, just stick with the SATA limits for stack friendliness.
1450  */
1451 static int
1452 g_raid_md_get_label(struct g_consumer *cp, char *serial, int serlen)
1453 {
1454         char serial_buffer[DISK_IDENT_SIZE];
1455         int len, error;
1456
1457         len = sizeof(serial_buffer);
1458         error = g_io_getattr("GEOM::ident", cp, &len, serial_buffer);
1459         if (error != 0)
1460                 return (error);
1461         len = strlen(serial_buffer);
1462         if (len > serlen)
1463                 len -= serlen;
1464         else
1465                 len = 0;
1466         strncpy(serial, serial_buffer + len, serlen);
1467         return (0);
1468 }
1469
1470 static int
1471 g_raid_md_taste_intel(struct g_raid_md_object *md, struct g_class *mp,
1472                               struct g_consumer *cp, struct g_geom **gp)
1473 {
1474         struct g_consumer *rcp;
1475         struct g_provider *pp;
1476         struct g_raid_md_intel_object *mdi, *mdi1;
1477         struct g_raid_softc *sc;
1478         struct g_raid_disk *disk;
1479         struct intel_raid_conf *meta;
1480         struct g_raid_md_intel_perdisk *pd;
1481         struct g_geom *geom;
1482         int error, disk_pos, result, spare, len;
1483         char serial[INTEL_SERIAL_LEN];
1484         char name[16];
1485         uint16_t vendor;
1486
1487         G_RAID_DEBUG(1, "Tasting Intel on %s", cp->provider->name);
1488         mdi = (struct g_raid_md_intel_object *)md;
1489         pp = cp->provider;
1490
1491         /* Read metadata from device. */
1492         meta = NULL;
1493         disk_pos = 0;
1494         g_topology_unlock();
1495         error = g_raid_md_get_label(cp, serial, sizeof(serial));
1496         if (error != 0) {
1497                 G_RAID_DEBUG(1, "Cannot get serial number from %s (error=%d).",
1498                     pp->name, error);
1499                 goto fail2;
1500         }
1501         vendor = 0xffff;
1502         len = sizeof(vendor);
1503         if (pp->geom->rank == 1)
1504                 g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor);
1505         meta = intel_meta_read(cp);
1506         g_topology_lock();
1507         if (meta == NULL) {
1508                 if (g_raid_aggressive_spare) {
1509                         if (vendor != 0x8086) {
1510                                 G_RAID_DEBUG(1,
1511                                     "Intel vendor mismatch 0x%04x != 0x8086",
1512                                     vendor);
1513                         } else {
1514                                 G_RAID_DEBUG(1,
1515                                     "No Intel metadata, forcing spare.");
1516                                 spare = 2;
1517                                 goto search;
1518                         }
1519                 }
1520                 return (G_RAID_MD_TASTE_FAIL);
1521         }
1522
1523         /* Check this disk position in obtained metadata. */
1524         disk_pos = intel_meta_find_disk(meta, serial);
1525         if (disk_pos < 0) {
1526                 G_RAID_DEBUG(1, "Intel serial '%s' not found", serial);
1527                 goto fail1;
1528         }
1529         if (intel_get_disk_sectors(&meta->disk[disk_pos]) !=
1530             (pp->mediasize / pp->sectorsize)) {
1531                 G_RAID_DEBUG(1, "Intel size mismatch %ju != %ju",
1532                     intel_get_disk_sectors(&meta->disk[disk_pos]),
1533                     (off_t)(pp->mediasize / pp->sectorsize));
1534                 goto fail1;
1535         }
1536
1537         G_RAID_DEBUG(1, "Intel disk position %d", disk_pos);
1538         spare = meta->disk[disk_pos].flags & INTEL_F_SPARE;
1539
1540 search:
1541         /* Search for matching node. */
1542         sc = NULL;
1543         mdi1 = NULL;
1544         LIST_FOREACH(geom, &mp->geom, geom) {
1545                 sc = geom->softc;
1546                 if (sc == NULL)
1547                         continue;
1548                 if (sc->sc_stopping != 0)
1549                         continue;
1550                 if (sc->sc_md->mdo_class != md->mdo_class)
1551                         continue;
1552                 mdi1 = (struct g_raid_md_intel_object *)sc->sc_md;
1553                 if (spare) {
1554                         if (mdi1->mdio_incomplete)
1555                                 break;
1556                 } else {
1557                         if (mdi1->mdio_config_id == meta->config_id)
1558                                 break;
1559                 }
1560         }
1561
1562         /* Found matching node. */
1563         if (geom != NULL) {
1564                 G_RAID_DEBUG(1, "Found matching array %s", sc->sc_name);
1565                 result = G_RAID_MD_TASTE_EXISTING;
1566
1567         } else if (spare) { /* Not found needy node -- left for later. */
1568                 G_RAID_DEBUG(1, "Spare is not needed at this time");
1569                 goto fail1;
1570
1571         } else { /* Not found matching node -- create one. */
1572                 result = G_RAID_MD_TASTE_NEW;
1573                 mdi->mdio_config_id = meta->config_id;
1574                 mdi->mdio_orig_config_id = meta->orig_config_id;
1575                 snprintf(name, sizeof(name), "Intel-%08x", meta->config_id);
1576                 sc = g_raid_create_node(mp, name, md);
1577                 md->mdo_softc = sc;
1578                 geom = sc->sc_geom;
1579                 callout_init(&mdi->mdio_start_co, 1);
1580                 callout_reset(&mdi->mdio_start_co, g_raid_start_timeout * hz,
1581                     g_raid_intel_go, sc);
1582                 mdi->mdio_rootmount = root_mount_hold("GRAID-Intel");
1583                 G_RAID_DEBUG1(1, sc, "root_mount_hold %p", mdi->mdio_rootmount);
1584         }
1585
1586         /* There is no return after this point, so we close passed consumer. */
1587         g_access(cp, -1, 0, 0);
1588
1589         rcp = g_new_consumer(geom);
1590         rcp->flags |= G_CF_DIRECT_RECEIVE;
1591         g_attach(rcp, pp);
1592         if (g_access(rcp, 1, 1, 1) != 0)
1593                 ; //goto fail1;
1594
1595         g_topology_unlock();
1596         sx_xlock(&sc->sc_lock);
1597
1598         pd = malloc(sizeof(*pd), M_MD_INTEL, M_WAITOK | M_ZERO);
1599         pd->pd_meta = meta;
1600         pd->pd_disk_pos = -1;
1601         if (spare == 2) {
1602                 memcpy(&pd->pd_disk_meta.serial[0], serial, INTEL_SERIAL_LEN);
1603                 intel_set_disk_sectors(&pd->pd_disk_meta,
1604                     pp->mediasize / pp->sectorsize);
1605                 pd->pd_disk_meta.id = 0;
1606                 pd->pd_disk_meta.flags = INTEL_F_SPARE;
1607         } else {
1608                 pd->pd_disk_meta = meta->disk[disk_pos];
1609         }
1610         disk = g_raid_create_disk(sc);
1611         disk->d_md_data = (void *)pd;
1612         disk->d_consumer = rcp;
1613         rcp->private = disk;
1614
1615         g_raid_get_disk_info(disk);
1616
1617         g_raid_md_intel_new_disk(disk);
1618
1619         sx_xunlock(&sc->sc_lock);
1620         g_topology_lock();
1621         *gp = geom;
1622         return (result);
1623 fail2:
1624         g_topology_lock();
1625 fail1:
1626         free(meta, M_MD_INTEL);
1627         return (G_RAID_MD_TASTE_FAIL);
1628 }
1629
1630 static int
1631 g_raid_md_event_intel(struct g_raid_md_object *md,
1632     struct g_raid_disk *disk, u_int event)
1633 {
1634         struct g_raid_softc *sc;
1635         struct g_raid_subdisk *sd;
1636         struct g_raid_md_intel_object *mdi;
1637         struct g_raid_md_intel_perdisk *pd;
1638
1639         sc = md->mdo_softc;
1640         mdi = (struct g_raid_md_intel_object *)md;
1641         if (disk == NULL) {
1642                 switch (event) {
1643                 case G_RAID_NODE_E_START:
1644                         if (!mdi->mdio_started)
1645                                 g_raid_md_intel_start(sc);
1646                         return (0);
1647                 }
1648                 return (-1);
1649         }
1650         pd = (struct g_raid_md_intel_perdisk *)disk->d_md_data;
1651         switch (event) {
1652         case G_RAID_DISK_E_DISCONNECTED:
1653                 /* If disk was assigned, just update statuses. */
1654                 if (pd->pd_disk_pos >= 0) {
1655                         g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE);
1656                         if (disk->d_consumer) {
1657                                 g_raid_kill_consumer(sc, disk->d_consumer);
1658                                 disk->d_consumer = NULL;
1659                         }
1660                         TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) {
1661                                 g_raid_change_subdisk_state(sd,
1662                                     G_RAID_SUBDISK_S_NONE);
1663                                 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED,
1664                                     G_RAID_EVENT_SUBDISK);
1665                         }
1666                 } else {
1667                         /* Otherwise -- delete. */
1668                         g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE);
1669                         g_raid_destroy_disk(disk);
1670                 }
1671
1672                 /* Write updated metadata to all disks. */
1673                 g_raid_md_write_intel(md, NULL, NULL, NULL);
1674
1675                 /* Check if anything left except placeholders. */
1676                 if (g_raid_ndisks(sc, -1) ==
1677                     g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE))
1678                         g_raid_destroy_node(sc, 0);
1679                 else
1680                         g_raid_md_intel_refill(sc);
1681                 return (0);
1682         }
1683         return (-2);
1684 }
1685
1686 static int
1687 g_raid_md_ctl_intel(struct g_raid_md_object *md,
1688     struct gctl_req *req)
1689 {
1690         struct g_raid_softc *sc;
1691         struct g_raid_volume *vol, *vol1;
1692         struct g_raid_subdisk *sd;
1693         struct g_raid_disk *disk;
1694         struct g_raid_md_intel_object *mdi;
1695         struct g_raid_md_intel_pervolume *pv;
1696         struct g_raid_md_intel_perdisk *pd;
1697         struct g_consumer *cp;
1698         struct g_provider *pp;
1699         char arg[16], serial[INTEL_SERIAL_LEN];
1700         const char *nodename, *verb, *volname, *levelname, *diskname;
1701         char *tmp;
1702         int *nargs, *force;
1703         off_t off, size, sectorsize, strip, disk_sectors;
1704         intmax_t *sizearg, *striparg;
1705         int numdisks, i, len, level, qual, update;
1706         int error;
1707
1708         sc = md->mdo_softc;
1709         mdi = (struct g_raid_md_intel_object *)md;
1710         verb = gctl_get_param(req, "verb", NULL);
1711         nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
1712         error = 0;
1713         if (strcmp(verb, "label") == 0) {
1714
1715                 if (*nargs < 4) {
1716                         gctl_error(req, "Invalid number of arguments.");
1717                         return (-1);
1718                 }
1719                 volname = gctl_get_asciiparam(req, "arg1");
1720                 if (volname == NULL) {
1721                         gctl_error(req, "No volume name.");
1722                         return (-2);
1723                 }
1724                 levelname = gctl_get_asciiparam(req, "arg2");
1725                 if (levelname == NULL) {
1726                         gctl_error(req, "No RAID level.");
1727                         return (-3);
1728                 }
1729                 if (strcasecmp(levelname, "RAID5") == 0)
1730                         levelname = "RAID5-LA";
1731                 if (g_raid_volume_str2level(levelname, &level, &qual)) {
1732                         gctl_error(req, "Unknown RAID level '%s'.", levelname);
1733                         return (-4);
1734                 }
1735                 numdisks = *nargs - 3;
1736                 force = gctl_get_paraml(req, "force", sizeof(*force));
1737                 if (!g_raid_md_intel_supported(level, qual, numdisks,
1738                     force ? *force : 0)) {
1739                         gctl_error(req, "Unsupported RAID level "
1740                             "(0x%02x/0x%02x), or number of disks (%d).",
1741                             level, qual, numdisks);
1742                         return (-5);
1743                 }
1744
1745                 /* Search for disks, connect them and probe. */
1746                 size = 0x7fffffffffffffffllu;
1747                 sectorsize = 0;
1748                 for (i = 0; i < numdisks; i++) {
1749                         snprintf(arg, sizeof(arg), "arg%d", i + 3);
1750                         diskname = gctl_get_asciiparam(req, arg);
1751                         if (diskname == NULL) {
1752                                 gctl_error(req, "No disk name (%s).", arg);
1753                                 error = -6;
1754                                 break;
1755                         }
1756                         if (strcmp(diskname, "NONE") == 0) {
1757                                 cp = NULL;
1758                                 pp = NULL;
1759                         } else {
1760                                 g_topology_lock();
1761                                 cp = g_raid_open_consumer(sc, diskname);
1762                                 if (cp == NULL) {
1763                                         gctl_error(req, "Can't open disk '%s'.",
1764                                             diskname);
1765                                         g_topology_unlock();
1766                                         error = -7;
1767                                         break;
1768                                 }
1769                                 pp = cp->provider;
1770                         }
1771                         pd = malloc(sizeof(*pd), M_MD_INTEL, M_WAITOK | M_ZERO);
1772                         pd->pd_disk_pos = i;
1773                         disk = g_raid_create_disk(sc);
1774                         disk->d_md_data = (void *)pd;
1775                         disk->d_consumer = cp;
1776                         if (cp == NULL) {
1777                                 strcpy(&pd->pd_disk_meta.serial[0], "NONE");
1778                                 pd->pd_disk_meta.id = 0xffffffff;
1779                                 pd->pd_disk_meta.flags = INTEL_F_ASSIGNED;
1780                                 continue;
1781                         }
1782                         cp->private = disk;
1783                         g_topology_unlock();
1784
1785                         error = g_raid_md_get_label(cp,
1786                             &pd->pd_disk_meta.serial[0], INTEL_SERIAL_LEN);
1787                         if (error != 0) {
1788                                 gctl_error(req,
1789                                     "Can't get serial for provider '%s'.",
1790                                     diskname);
1791                                 error = -8;
1792                                 break;
1793                         }
1794
1795                         g_raid_get_disk_info(disk);
1796
1797                         intel_set_disk_sectors(&pd->pd_disk_meta,
1798                             pp->mediasize / pp->sectorsize);
1799                         if (size > pp->mediasize)
1800                                 size = pp->mediasize;
1801                         if (sectorsize < pp->sectorsize)
1802                                 sectorsize = pp->sectorsize;
1803                         pd->pd_disk_meta.id = 0;
1804                         pd->pd_disk_meta.flags = INTEL_F_ASSIGNED | INTEL_F_ONLINE;
1805                 }
1806                 if (error != 0)
1807                         return (error);
1808
1809                 if (sectorsize <= 0) {
1810                         gctl_error(req, "Can't get sector size.");
1811                         return (-8);
1812                 }
1813
1814                 /* Reserve some space for metadata. */
1815                 size -= ((4096 + sectorsize - 1) / sectorsize) * sectorsize;
1816
1817                 /* Handle size argument. */
1818                 len = sizeof(*sizearg);
1819                 sizearg = gctl_get_param(req, "size", &len);
1820                 if (sizearg != NULL && len == sizeof(*sizearg) &&
1821                     *sizearg > 0) {
1822                         if (*sizearg > size) {
1823                                 gctl_error(req, "Size too big %lld > %lld.",
1824                                     (long long)*sizearg, (long long)size);
1825                                 return (-9);
1826                         }
1827                         size = *sizearg;
1828                 }
1829
1830                 /* Handle strip argument. */
1831                 strip = 131072;
1832                 len = sizeof(*striparg);
1833                 striparg = gctl_get_param(req, "strip", &len);
1834                 if (striparg != NULL && len == sizeof(*striparg) &&
1835                     *striparg > 0) {
1836                         if (*striparg < sectorsize) {
1837                                 gctl_error(req, "Strip size too small.");
1838                                 return (-10);
1839                         }
1840                         if (*striparg % sectorsize != 0) {
1841                                 gctl_error(req, "Incorrect strip size.");
1842                                 return (-11);
1843                         }
1844                         if (strip > 65535 * sectorsize) {
1845                                 gctl_error(req, "Strip size too big.");
1846                                 return (-12);
1847                         }
1848                         strip = *striparg;
1849                 }
1850
1851                 /* Round size down to strip or sector. */
1852                 if (level == G_RAID_VOLUME_RL_RAID1)
1853                         size -= (size % sectorsize);
1854                 else if (level == G_RAID_VOLUME_RL_RAID1E &&
1855                     (numdisks & 1) != 0)
1856                         size -= (size % (2 * strip));
1857                 else
1858                         size -= (size % strip);
1859                 if (size <= 0) {
1860                         gctl_error(req, "Size too small.");
1861                         return (-13);
1862                 }
1863
1864                 /* We have all we need, create things: volume, ... */
1865                 mdi->mdio_started = 1;
1866                 vol = g_raid_create_volume(sc, volname, -1);
1867                 pv = malloc(sizeof(*pv), M_MD_INTEL, M_WAITOK | M_ZERO);
1868                 pv->pv_volume_pos = 0;
1869                 vol->v_md_data = pv;
1870                 vol->v_raid_level = level;
1871                 vol->v_raid_level_qualifier = qual;
1872                 vol->v_strip_size = strip;
1873                 vol->v_disks_count = numdisks;
1874                 if (level == G_RAID_VOLUME_RL_RAID0)
1875                         vol->v_mediasize = size * numdisks;
1876                 else if (level == G_RAID_VOLUME_RL_RAID1)
1877                         vol->v_mediasize = size;
1878                 else if (level == G_RAID_VOLUME_RL_RAID5)
1879                         vol->v_mediasize = size * (numdisks - 1);
1880                 else { /* RAID1E */
1881                         vol->v_mediasize = ((size * numdisks) / strip / 2) *
1882                             strip;
1883                 }
1884                 vol->v_sectorsize = sectorsize;
1885                 g_raid_start_volume(vol);
1886
1887                 /* , and subdisks. */
1888                 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1889                         pd = (struct g_raid_md_intel_perdisk *)disk->d_md_data;
1890                         sd = &vol->v_subdisks[pd->pd_disk_pos];
1891                         sd->sd_disk = disk;
1892                         sd->sd_offset = 0;
1893                         sd->sd_size = size;
1894                         TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next);
1895                         if (sd->sd_disk->d_consumer != NULL) {
1896                                 g_raid_change_disk_state(disk,
1897                                     G_RAID_DISK_S_ACTIVE);
1898                                 if (level == G_RAID_VOLUME_RL_RAID5)
1899                                         g_raid_change_subdisk_state(sd,
1900                                             G_RAID_SUBDISK_S_UNINITIALIZED);
1901                                 else
1902                                         g_raid_change_subdisk_state(sd,
1903                                             G_RAID_SUBDISK_S_ACTIVE);
1904                                 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW,
1905                                     G_RAID_EVENT_SUBDISK);
1906                         } else {
1907                                 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE);
1908                         }
1909                 }
1910
1911                 /* Write metadata based on created entities. */
1912                 G_RAID_DEBUG1(0, sc, "Array started.");
1913                 g_raid_md_write_intel(md, NULL, NULL, NULL);
1914
1915                 /* Pickup any STALE/SPARE disks to refill array if needed. */
1916                 g_raid_md_intel_refill(sc);
1917
1918                 g_raid_event_send(vol, G_RAID_VOLUME_E_START,
1919                     G_RAID_EVENT_VOLUME);
1920                 return (0);
1921         }
1922         if (strcmp(verb, "add") == 0) {
1923
1924                 if (*nargs != 3) {
1925                         gctl_error(req, "Invalid number of arguments.");
1926                         return (-1);
1927                 }
1928                 volname = gctl_get_asciiparam(req, "arg1");
1929                 if (volname == NULL) {
1930                         gctl_error(req, "No volume name.");
1931                         return (-2);
1932                 }
1933                 levelname = gctl_get_asciiparam(req, "arg2");
1934                 if (levelname == NULL) {
1935                         gctl_error(req, "No RAID level.");
1936                         return (-3);
1937                 }
1938                 if (strcasecmp(levelname, "RAID5") == 0)
1939                         levelname = "RAID5-LA";
1940                 if (g_raid_volume_str2level(levelname, &level, &qual)) {
1941                         gctl_error(req, "Unknown RAID level '%s'.", levelname);
1942                         return (-4);
1943                 }
1944
1945                 /* Look for existing volumes. */
1946                 i = 0;
1947                 vol1 = NULL;
1948                 TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) {
1949                         vol1 = vol;
1950                         i++;
1951                 }
1952                 if (i > 1) {
1953                         gctl_error(req, "Maximum two volumes supported.");
1954                         return (-6);
1955                 }
1956                 if (vol1 == NULL) {
1957                         gctl_error(req, "At least one volume must exist.");
1958                         return (-7);
1959                 }
1960
1961                 numdisks = vol1->v_disks_count;
1962                 force = gctl_get_paraml(req, "force", sizeof(*force));
1963                 if (!g_raid_md_intel_supported(level, qual, numdisks,
1964                     force ? *force : 0)) {
1965                         gctl_error(req, "Unsupported RAID level "
1966                             "(0x%02x/0x%02x), or number of disks (%d).",
1967                             level, qual, numdisks);
1968                         return (-5);
1969                 }
1970
1971                 /* Collect info about present disks. */
1972                 size = 0x7fffffffffffffffllu;
1973                 sectorsize = 512;
1974                 for (i = 0; i < numdisks; i++) {
1975                         disk = vol1->v_subdisks[i].sd_disk;
1976                         pd = (struct g_raid_md_intel_perdisk *)
1977                             disk->d_md_data;
1978                         disk_sectors =
1979                             intel_get_disk_sectors(&pd->pd_disk_meta);
1980
1981                         if (disk_sectors * 512 < size)
1982                                 size = disk_sectors * 512;
1983                         if (disk->d_consumer != NULL &&
1984                             disk->d_consumer->provider != NULL &&
1985                             disk->d_consumer->provider->sectorsize >
1986                              sectorsize) {
1987                                 sectorsize =
1988                                     disk->d_consumer->provider->sectorsize;
1989                         }
1990                 }
1991
1992                 /* Reserve some space for metadata. */
1993                 size -= ((4096 + sectorsize - 1) / sectorsize) * sectorsize;
1994
1995                 /* Decide insert before or after. */
1996                 sd = &vol1->v_subdisks[0];
1997                 if (sd->sd_offset >
1998                     size - (sd->sd_offset + sd->sd_size)) {
1999                         off = 0;
2000                         size = sd->sd_offset;
2001                 } else {
2002                         off = sd->sd_offset + sd->sd_size;
2003                         size = size - (sd->sd_offset + sd->sd_size);
2004                 }
2005
2006                 /* Handle strip argument. */
2007                 strip = 131072;
2008                 len = sizeof(*striparg);
2009                 striparg = gctl_get_param(req, "strip", &len);
2010                 if (striparg != NULL && len == sizeof(*striparg) &&
2011                     *striparg > 0) {
2012                         if (*striparg < sectorsize) {
2013                                 gctl_error(req, "Strip size too small.");
2014                                 return (-10);
2015                         }
2016                         if (*striparg % sectorsize != 0) {
2017                                 gctl_error(req, "Incorrect strip size.");
2018                                 return (-11);
2019                         }
2020                         if (strip > 65535 * sectorsize) {
2021                                 gctl_error(req, "Strip size too big.");
2022                                 return (-12);
2023                         }
2024                         strip = *striparg;
2025                 }
2026
2027                 /* Round offset up to strip. */
2028                 if (off % strip != 0) {
2029                         size -= strip - off % strip;
2030                         off += strip - off % strip;
2031                 }
2032
2033                 /* Handle size argument. */
2034                 len = sizeof(*sizearg);
2035                 sizearg = gctl_get_param(req, "size", &len);
2036                 if (sizearg != NULL && len == sizeof(*sizearg) &&
2037                     *sizearg > 0) {
2038                         if (*sizearg > size) {
2039                                 gctl_error(req, "Size too big %lld > %lld.",
2040                                     (long long)*sizearg, (long long)size);
2041                                 return (-9);
2042                         }
2043                         size = *sizearg;
2044                 }
2045
2046                 /* Round size down to strip or sector. */
2047                 if (level == G_RAID_VOLUME_RL_RAID1)
2048                         size -= (size % sectorsize);
2049                 else
2050                         size -= (size % strip);
2051                 if (size <= 0) {
2052                         gctl_error(req, "Size too small.");
2053                         return (-13);
2054                 }
2055                 if (size > 0xffffffffllu * sectorsize) {
2056                         gctl_error(req, "Size too big.");
2057                         return (-14);
2058                 }
2059
2060                 /* We have all we need, create things: volume, ... */
2061                 vol = g_raid_create_volume(sc, volname, -1);
2062                 pv = malloc(sizeof(*pv), M_MD_INTEL, M_WAITOK | M_ZERO);
2063                 pv->pv_volume_pos = i;
2064                 vol->v_md_data = pv;
2065                 vol->v_raid_level = level;
2066                 vol->v_raid_level_qualifier = qual;
2067                 vol->v_strip_size = strip;
2068                 vol->v_disks_count = numdisks;
2069                 if (level == G_RAID_VOLUME_RL_RAID0)
2070                         vol->v_mediasize = size * numdisks;
2071                 else if (level == G_RAID_VOLUME_RL_RAID1)
2072                         vol->v_mediasize = size;
2073                 else if (level == G_RAID_VOLUME_RL_RAID5)
2074                         vol->v_mediasize = size * (numdisks - 1);
2075                 else { /* RAID1E */
2076                         vol->v_mediasize = ((size * numdisks) / strip / 2) *
2077                             strip;
2078                 }
2079                 vol->v_sectorsize = sectorsize;
2080                 g_raid_start_volume(vol);
2081
2082                 /* , and subdisks. */
2083                 for (i = 0; i < numdisks; i++) {
2084                         disk = vol1->v_subdisks[i].sd_disk;
2085                         sd = &vol->v_subdisks[i];
2086                         sd->sd_disk = disk;
2087                         sd->sd_offset = off;
2088                         sd->sd_size = size;
2089                         TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next);
2090                         if (disk->d_state == G_RAID_DISK_S_ACTIVE) {
2091                                 if (level == G_RAID_VOLUME_RL_RAID5)
2092                                         g_raid_change_subdisk_state(sd,
2093                                             G_RAID_SUBDISK_S_UNINITIALIZED);
2094                                 else
2095                                         g_raid_change_subdisk_state(sd,
2096                                             G_RAID_SUBDISK_S_ACTIVE);
2097                                 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW,
2098                                     G_RAID_EVENT_SUBDISK);
2099                         }
2100                 }
2101
2102                 /* Write metadata based on created entities. */
2103                 g_raid_md_write_intel(md, NULL, NULL, NULL);
2104
2105                 g_raid_event_send(vol, G_RAID_VOLUME_E_START,
2106                     G_RAID_EVENT_VOLUME);
2107                 return (0);
2108         }
2109         if (strcmp(verb, "delete") == 0) {
2110
2111                 nodename = gctl_get_asciiparam(req, "arg0");
2112                 if (nodename != NULL && strcasecmp(sc->sc_name, nodename) != 0)
2113                         nodename = NULL;
2114
2115                 /* Full node destruction. */
2116                 if (*nargs == 1 && nodename != NULL) {
2117                         /* Check if some volume is still open. */
2118                         force = gctl_get_paraml(req, "force", sizeof(*force));
2119                         if (force != NULL && *force == 0 &&
2120                             g_raid_nopens(sc) != 0) {
2121                                 gctl_error(req, "Some volume is still open.");
2122                                 return (-4);
2123                         }
2124
2125                         TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
2126                                 if (disk->d_consumer)
2127                                         intel_meta_erase(disk->d_consumer);
2128                         }
2129                         g_raid_destroy_node(sc, 0);
2130                         return (0);
2131                 }
2132
2133                 /* Destroy specified volume. If it was last - all node. */
2134                 if (*nargs > 2) {
2135                         gctl_error(req, "Invalid number of arguments.");
2136                         return (-1);
2137                 }
2138                 volname = gctl_get_asciiparam(req,
2139                     nodename != NULL ? "arg1" : "arg0");
2140                 if (volname == NULL) {
2141                         gctl_error(req, "No volume name.");
2142                         return (-2);
2143                 }
2144
2145                 /* Search for volume. */
2146                 TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) {
2147                         if (strcmp(vol->v_name, volname) == 0)
2148                                 break;
2149                         pp = vol->v_provider;
2150                         if (pp == NULL)
2151                                 continue;
2152                         if (strcmp(pp->name, volname) == 0)
2153                                 break;
2154                         if (strncmp(pp->name, "raid/", 5) == 0 &&
2155                             strcmp(pp->name + 5, volname) == 0)
2156                                 break;
2157                 }
2158                 if (vol == NULL) {
2159                         i = strtol(volname, &tmp, 10);
2160                         if (verb != volname && tmp[0] == 0) {
2161                                 TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) {
2162                                         if (vol->v_global_id == i)
2163                                                 break;
2164                                 }
2165                         }
2166                 }
2167                 if (vol == NULL) {
2168                         gctl_error(req, "Volume '%s' not found.", volname);
2169                         return (-3);
2170                 }
2171
2172                 /* Check if volume is still open. */
2173                 force = gctl_get_paraml(req, "force", sizeof(*force));
2174                 if (force != NULL && *force == 0 &&
2175                     vol->v_provider_open != 0) {
2176                         gctl_error(req, "Volume is still open.");
2177                         return (-4);
2178                 }
2179
2180                 /* Destroy volume and potentially node. */
2181                 i = 0;
2182                 TAILQ_FOREACH(vol1, &sc->sc_volumes, v_next)
2183                         i++;
2184                 if (i >= 2) {
2185                         g_raid_destroy_volume(vol);
2186                         g_raid_md_write_intel(md, NULL, NULL, NULL);
2187                 } else {
2188                         TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
2189                                 if (disk->d_consumer)
2190                                         intel_meta_erase(disk->d_consumer);
2191                         }
2192                         g_raid_destroy_node(sc, 0);
2193                 }
2194                 return (0);
2195         }
2196         if (strcmp(verb, "remove") == 0 ||
2197             strcmp(verb, "fail") == 0) {
2198                 if (*nargs < 2) {
2199                         gctl_error(req, "Invalid number of arguments.");
2200                         return (-1);
2201                 }
2202                 for (i = 1; i < *nargs; i++) {
2203                         snprintf(arg, sizeof(arg), "arg%d", i);
2204                         diskname = gctl_get_asciiparam(req, arg);
2205                         if (diskname == NULL) {
2206                                 gctl_error(req, "No disk name (%s).", arg);
2207                                 error = -2;
2208                                 break;
2209                         }
2210                         if (strncmp(diskname, "/dev/", 5) == 0)
2211                                 diskname += 5;
2212
2213                         TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
2214                                 if (disk->d_consumer != NULL &&
2215                                     disk->d_consumer->provider != NULL &&
2216                                     strcmp(disk->d_consumer->provider->name,
2217                                      diskname) == 0)
2218                                         break;
2219                         }
2220                         if (disk == NULL) {
2221                                 gctl_error(req, "Disk '%s' not found.",
2222                                     diskname);
2223                                 error = -3;
2224                                 break;
2225                         }
2226
2227                         if (strcmp(verb, "fail") == 0) {
2228                                 g_raid_md_fail_disk_intel(md, NULL, disk);
2229                                 continue;
2230                         }
2231
2232                         pd = (struct g_raid_md_intel_perdisk *)disk->d_md_data;
2233
2234                         /* Erase metadata on deleting disk. */
2235                         intel_meta_erase(disk->d_consumer);
2236
2237                         /* If disk was assigned, just update statuses. */
2238                         if (pd->pd_disk_pos >= 0) {
2239                                 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE);
2240                                 g_raid_kill_consumer(sc, disk->d_consumer);
2241                                 disk->d_consumer = NULL;
2242                                 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) {
2243                                         g_raid_change_subdisk_state(sd,
2244                                             G_RAID_SUBDISK_S_NONE);
2245                                         g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED,
2246                                             G_RAID_EVENT_SUBDISK);
2247                                 }
2248                         } else {
2249                                 /* Otherwise -- delete. */
2250                                 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE);
2251                                 g_raid_destroy_disk(disk);
2252                         }
2253                 }
2254
2255                 /* Write updated metadata to remaining disks. */
2256                 g_raid_md_write_intel(md, NULL, NULL, NULL);
2257
2258                 /* Check if anything left except placeholders. */
2259                 if (g_raid_ndisks(sc, -1) ==
2260                     g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE))
2261                         g_raid_destroy_node(sc, 0);
2262                 else
2263                         g_raid_md_intel_refill(sc);
2264                 return (error);
2265         }
2266         if (strcmp(verb, "insert") == 0) {
2267                 if (*nargs < 2) {
2268                         gctl_error(req, "Invalid number of arguments.");
2269                         return (-1);
2270                 }
2271                 update = 0;
2272                 for (i = 1; i < *nargs; i++) {
2273                         /* Get disk name. */
2274                         snprintf(arg, sizeof(arg), "arg%d", i);
2275                         diskname = gctl_get_asciiparam(req, arg);
2276                         if (diskname == NULL) {
2277                                 gctl_error(req, "No disk name (%s).", arg);
2278                                 error = -3;
2279                                 break;
2280                         }
2281
2282                         /* Try to find provider with specified name. */
2283                         g_topology_lock();
2284                         cp = g_raid_open_consumer(sc, diskname);
2285                         if (cp == NULL) {
2286                                 gctl_error(req, "Can't open disk '%s'.",
2287                                     diskname);
2288                                 g_topology_unlock();
2289                                 error = -4;
2290                                 break;
2291                         }
2292                         pp = cp->provider;
2293                         g_topology_unlock();
2294
2295                         /* Read disk serial. */
2296                         error = g_raid_md_get_label(cp,
2297                             &serial[0], INTEL_SERIAL_LEN);
2298                         if (error != 0) {
2299                                 gctl_error(req,
2300                                     "Can't get serial for provider '%s'.",
2301                                     diskname);
2302                                 g_raid_kill_consumer(sc, cp);
2303                                 error = -7;
2304                                 break;
2305                         }
2306
2307                         pd = malloc(sizeof(*pd), M_MD_INTEL, M_WAITOK | M_ZERO);
2308                         pd->pd_disk_pos = -1;
2309
2310                         disk = g_raid_create_disk(sc);
2311                         disk->d_consumer = cp;
2312                         disk->d_md_data = (void *)pd;
2313                         cp->private = disk;
2314
2315                         g_raid_get_disk_info(disk);
2316
2317                         memcpy(&pd->pd_disk_meta.serial[0], &serial[0],
2318                             INTEL_SERIAL_LEN);
2319                         intel_set_disk_sectors(&pd->pd_disk_meta,
2320                             pp->mediasize / pp->sectorsize);
2321                         pd->pd_disk_meta.id = 0;
2322                         pd->pd_disk_meta.flags = INTEL_F_SPARE;
2323
2324                         /* Welcome the "new" disk. */
2325                         update += g_raid_md_intel_start_disk(disk);
2326                         if (disk->d_state == G_RAID_DISK_S_SPARE) {
2327                                 intel_meta_write_spare(cp, &pd->pd_disk_meta);
2328                                 g_raid_destroy_disk(disk);
2329                         } else if (disk->d_state != G_RAID_DISK_S_ACTIVE) {
2330                                 gctl_error(req, "Disk '%s' doesn't fit.",
2331                                     diskname);
2332                                 g_raid_destroy_disk(disk);
2333                                 error = -8;
2334                                 break;
2335                         }
2336                 }
2337
2338                 /* Write new metadata if we changed something. */
2339                 if (update)
2340                         g_raid_md_write_intel(md, NULL, NULL, NULL);
2341                 return (error);
2342         }
2343         return (-100);
2344 }
2345
2346 static int
2347 g_raid_md_write_intel(struct g_raid_md_object *md, struct g_raid_volume *tvol,
2348     struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk)
2349 {
2350         struct g_raid_softc *sc;
2351         struct g_raid_volume *vol;
2352         struct g_raid_subdisk *sd;
2353         struct g_raid_disk *disk;
2354         struct g_raid_md_intel_object *mdi;
2355         struct g_raid_md_intel_pervolume *pv;
2356         struct g_raid_md_intel_perdisk *pd;
2357         struct intel_raid_conf *meta;
2358         struct intel_raid_vol *mvol;
2359         struct intel_raid_map *mmap0, *mmap1;
2360         off_t sectorsize = 512, pos;
2361         const char *version, *cv;
2362         int vi, sdi, numdisks, len, state, stale;
2363
2364         sc = md->mdo_softc;
2365         mdi = (struct g_raid_md_intel_object *)md;
2366
2367         if (sc->sc_stopping == G_RAID_DESTROY_HARD)
2368                 return (0);
2369
2370         /* Bump generation. Newly written metadata may differ from previous. */
2371         mdi->mdio_generation++;
2372
2373         /* Count number of disks. */
2374         numdisks = 0;
2375         TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
2376                 pd = (struct g_raid_md_intel_perdisk *)disk->d_md_data;
2377                 if (pd->pd_disk_pos < 0)
2378                         continue;
2379                 numdisks++;
2380                 if (disk->d_state == G_RAID_DISK_S_ACTIVE) {
2381                         pd->pd_disk_meta.flags =
2382                             INTEL_F_ONLINE | INTEL_F_ASSIGNED;
2383                 } else if (disk->d_state == G_RAID_DISK_S_FAILED) {
2384                         pd->pd_disk_meta.flags = INTEL_F_FAILED |
2385                             INTEL_F_ASSIGNED;
2386                 } else if (disk->d_state == G_RAID_DISK_S_DISABLED) {
2387                         pd->pd_disk_meta.flags = INTEL_F_FAILED |
2388                             INTEL_F_ASSIGNED | INTEL_F_DISABLED;
2389                 } else {
2390                         if (!(pd->pd_disk_meta.flags & INTEL_F_DISABLED))
2391                                 pd->pd_disk_meta.flags = INTEL_F_ASSIGNED;
2392                         if (pd->pd_disk_meta.id != 0xffffffff) {
2393                                 pd->pd_disk_meta.id = 0xffffffff;
2394                                 len = strlen(pd->pd_disk_meta.serial);
2395                                 len = min(len, INTEL_SERIAL_LEN - 3);
2396                                 strcpy(pd->pd_disk_meta.serial + len, ":0");
2397                         }
2398                 }
2399         }
2400
2401         /* Fill anchor and disks. */
2402         meta = malloc(INTEL_MAX_MD_SIZE(numdisks),
2403             M_MD_INTEL, M_WAITOK | M_ZERO);
2404         memcpy(&meta->intel_id[0], INTEL_MAGIC, sizeof(INTEL_MAGIC) - 1);
2405         meta->config_size = INTEL_MAX_MD_SIZE(numdisks);
2406         meta->config_id = mdi->mdio_config_id;
2407         meta->orig_config_id = mdi->mdio_orig_config_id;
2408         meta->generation = mdi->mdio_generation;
2409         meta->attributes = INTEL_ATTR_CHECKSUM;
2410         meta->total_disks = numdisks;
2411         TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
2412                 pd = (struct g_raid_md_intel_perdisk *)disk->d_md_data;
2413                 if (pd->pd_disk_pos < 0)
2414                         continue;
2415                 meta->disk[pd->pd_disk_pos] = pd->pd_disk_meta;
2416                 if (pd->pd_disk_meta.sectors_hi != 0)
2417                         meta->attributes |= INTEL_ATTR_2TB_DISK;
2418         }
2419
2420         /* Fill volumes and maps. */
2421         vi = 0;
2422         version = INTEL_VERSION_1000;
2423         TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) {
2424                 pv = vol->v_md_data;
2425                 if (vol->v_stopping)
2426                         continue;
2427                 mvol = intel_get_volume(meta, vi);
2428
2429                 /* New metadata may have different volumes order. */
2430                 pv->pv_volume_pos = vi;
2431
2432                 for (sdi = 0; sdi < vol->v_disks_count; sdi++) {
2433                         sd = &vol->v_subdisks[sdi];
2434                         if (sd->sd_disk != NULL)
2435                                 break;
2436                 }
2437                 if (sdi >= vol->v_disks_count)
2438                         panic("No any filled subdisk in volume");
2439                 if (vol->v_mediasize >= 0x20000000000llu)
2440                         meta->attributes |= INTEL_ATTR_2TB;
2441                 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID0)
2442                         meta->attributes |= INTEL_ATTR_RAID0;
2443                 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1)
2444                         meta->attributes |= INTEL_ATTR_RAID1;
2445                 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID5)
2446                         meta->attributes |= INTEL_ATTR_RAID5;
2447                 else if ((vol->v_disks_count & 1) == 0)
2448                         meta->attributes |= INTEL_ATTR_RAID10;
2449                 else
2450                         meta->attributes |= INTEL_ATTR_RAID1E;
2451                 if (pv->pv_cng)
2452                         meta->attributes |= INTEL_ATTR_RAIDCNG;
2453                 if (vol->v_strip_size > 131072)
2454                         meta->attributes |= INTEL_ATTR_EXT_STRIP;
2455
2456                 if (pv->pv_cng)
2457                         cv = INTEL_VERSION_1206;
2458                 else if (vol->v_disks_count > 4)
2459                         cv = INTEL_VERSION_1204;
2460                 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID5)
2461                         cv = INTEL_VERSION_1202;
2462                 else if (vol->v_disks_count > 2)
2463                         cv = INTEL_VERSION_1201;
2464                 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1)
2465                         cv = INTEL_VERSION_1100;
2466                 else
2467                         cv = INTEL_VERSION_1000;
2468                 if (strcmp(cv, version) > 0)
2469                         version = cv;
2470
2471                 strlcpy(&mvol->name[0], vol->v_name, sizeof(mvol->name));
2472                 mvol->total_sectors = vol->v_mediasize / sectorsize;
2473                 mvol->state = (INTEL_ST_READ_COALESCING |
2474                     INTEL_ST_WRITE_COALESCING);
2475                 mvol->tid = vol->v_global_id + 1;
2476                 if (pv->pv_cng) {
2477                         mvol->state |= INTEL_ST_CLONE_N_GO;
2478                         if (pv->pv_cng_man_sync)
2479                                 mvol->state |= INTEL_ST_CLONE_MAN_SYNC;
2480                         mvol->cng_master_disk = pv->pv_cng_master_disk;
2481                         if (vol->v_subdisks[pv->pv_cng_master_disk].sd_state ==
2482                             G_RAID_SUBDISK_S_NONE)
2483                                 mvol->cng_state = INTEL_CNGST_MASTER_MISSING;
2484                         else if (vol->v_state != G_RAID_VOLUME_S_OPTIMAL)
2485                                 mvol->cng_state = INTEL_CNGST_NEEDS_UPDATE;
2486                         else
2487                                 mvol->cng_state = INTEL_CNGST_UPDATED;
2488                 }
2489
2490                 /* Check for any recovery in progress. */
2491                 state = G_RAID_SUBDISK_S_ACTIVE;
2492                 pos = 0x7fffffffffffffffllu;
2493                 stale = 0;
2494                 for (sdi = 0; sdi < vol->v_disks_count; sdi++) {
2495                         sd = &vol->v_subdisks[sdi];
2496                         if (sd->sd_state == G_RAID_SUBDISK_S_REBUILD)
2497                                 state = G_RAID_SUBDISK_S_REBUILD;
2498                         else if (sd->sd_state == G_RAID_SUBDISK_S_RESYNC &&
2499                             state != G_RAID_SUBDISK_S_REBUILD)
2500                                 state = G_RAID_SUBDISK_S_RESYNC;
2501                         else if (sd->sd_state == G_RAID_SUBDISK_S_STALE)
2502                                 stale = 1;
2503                         if ((sd->sd_state == G_RAID_SUBDISK_S_REBUILD ||
2504                             sd->sd_state == G_RAID_SUBDISK_S_RESYNC) &&
2505                              sd->sd_rebuild_pos < pos)
2506                                 pos = sd->sd_rebuild_pos;
2507                 }
2508                 if (state == G_RAID_SUBDISK_S_REBUILD) {
2509                         mvol->migr_state = 1;
2510                         mvol->migr_type = INTEL_MT_REBUILD;
2511                 } else if (state == G_RAID_SUBDISK_S_RESYNC) {
2512                         mvol->migr_state = 1;
2513                         /* mvol->migr_type = INTEL_MT_REPAIR; */
2514                         mvol->migr_type = INTEL_MT_VERIFY;
2515                         mvol->state |= INTEL_ST_VERIFY_AND_FIX;
2516                 } else
2517                         mvol->migr_state = 0;
2518                 mvol->dirty = (vol->v_dirty || stale);
2519
2520                 mmap0 = intel_get_map(mvol, 0);
2521
2522                 /* Write map / common part of two maps. */
2523                 intel_set_map_offset(mmap0, sd->sd_offset / sectorsize);
2524                 intel_set_map_disk_sectors(mmap0, sd->sd_size / sectorsize);
2525                 mmap0->strip_sectors = vol->v_strip_size / sectorsize;
2526                 if (vol->v_state == G_RAID_VOLUME_S_BROKEN)
2527                         mmap0->status = INTEL_S_FAILURE;
2528                 else if (vol->v_state == G_RAID_VOLUME_S_DEGRADED)
2529                         mmap0->status = INTEL_S_DEGRADED;
2530                 else if (g_raid_nsubdisks(vol, G_RAID_SUBDISK_S_UNINITIALIZED)
2531                     == g_raid_nsubdisks(vol, -1))
2532                         mmap0->status = INTEL_S_UNINITIALIZED;
2533                 else
2534                         mmap0->status = INTEL_S_READY;
2535                 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID0)
2536                         mmap0->type = INTEL_T_RAID0;
2537                 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1 ||
2538                     vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E)
2539                         mmap0->type = INTEL_T_RAID1;
2540                 else
2541                         mmap0->type = INTEL_T_RAID5;
2542                 mmap0->total_disks = vol->v_disks_count;
2543                 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1)
2544                         mmap0->total_domains = vol->v_disks_count;
2545                 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E)
2546                         mmap0->total_domains = 2;
2547                 else
2548                         mmap0->total_domains = 1;
2549                 intel_set_map_stripe_count(mmap0,
2550                     sd->sd_size / vol->v_strip_size / mmap0->total_domains);
2551                 mmap0->failed_disk_num = 0xff;
2552                 mmap0->ddf = 1;
2553
2554                 /* If there are two maps - copy common and update. */
2555                 if (mvol->migr_state) {
2556                         intel_set_vol_curr_migr_unit(mvol,
2557                             pos / vol->v_strip_size / mmap0->total_domains);
2558                         mmap1 = intel_get_map(mvol, 1);
2559                         memcpy(mmap1, mmap0, sizeof(struct intel_raid_map));
2560                         mmap0->status = INTEL_S_READY;
2561                 } else
2562                         mmap1 = NULL;
2563
2564                 /* Write disk indexes and put rebuild flags. */
2565                 for (sdi = 0; sdi < vol->v_disks_count; sdi++) {
2566                         sd = &vol->v_subdisks[sdi];
2567                         pd = (struct g_raid_md_intel_perdisk *)
2568                             sd->sd_disk->d_md_data;
2569                         mmap0->disk_idx[sdi] = pd->pd_disk_pos;
2570                         if (mvol->migr_state)
2571                                 mmap1->disk_idx[sdi] = pd->pd_disk_pos;
2572                         if (sd->sd_state == G_RAID_SUBDISK_S_REBUILD ||
2573                             sd->sd_state == G_RAID_SUBDISK_S_RESYNC) {
2574                                 mmap1->disk_idx[sdi] |= INTEL_DI_RBLD;
2575                         } else if (sd->sd_state != G_RAID_SUBDISK_S_ACTIVE &&
2576                             sd->sd_state != G_RAID_SUBDISK_S_STALE &&
2577                             sd->sd_state != G_RAID_SUBDISK_S_UNINITIALIZED) {
2578                                 mmap0->disk_idx[sdi] |= INTEL_DI_RBLD;
2579                                 if (mvol->migr_state)
2580                                         mmap1->disk_idx[sdi] |= INTEL_DI_RBLD;
2581                         }
2582                         if ((sd->sd_state == G_RAID_SUBDISK_S_NONE ||
2583                              sd->sd_state == G_RAID_SUBDISK_S_FAILED ||
2584                              sd->sd_state == G_RAID_SUBDISK_S_REBUILD) &&
2585                             mmap0->failed_disk_num == 0xff) {
2586                                 mmap0->failed_disk_num = sdi;
2587                                 if (mvol->migr_state)
2588                                         mmap1->failed_disk_num = sdi;
2589                         }
2590                 }
2591                 vi++;
2592         }
2593         meta->total_volumes = vi;
2594         if (vi > 1 || meta->attributes &
2595              (INTEL_ATTR_EXT_STRIP | INTEL_ATTR_2TB_DISK | INTEL_ATTR_2TB))
2596                 version = INTEL_VERSION_1300;
2597         if (strcmp(version, INTEL_VERSION_1300) < 0)
2598                 meta->attributes &= INTEL_ATTR_CHECKSUM;
2599         memcpy(&meta->version[0], version, sizeof(INTEL_VERSION_1000) - 1);
2600
2601         /* We are done. Print meta data and store them to disks. */
2602         g_raid_md_intel_print(meta);
2603         if (mdi->mdio_meta != NULL)
2604                 free(mdi->mdio_meta, M_MD_INTEL);
2605         mdi->mdio_meta = meta;
2606         TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
2607                 pd = (struct g_raid_md_intel_perdisk *)disk->d_md_data;
2608                 if (disk->d_state != G_RAID_DISK_S_ACTIVE)
2609                         continue;
2610                 if (pd->pd_meta != NULL) {
2611                         free(pd->pd_meta, M_MD_INTEL);
2612                         pd->pd_meta = NULL;
2613                 }
2614                 pd->pd_meta = intel_meta_copy(meta);
2615                 intel_meta_write(disk->d_consumer, meta);
2616         }
2617         return (0);
2618 }
2619
2620 static int
2621 g_raid_md_fail_disk_intel(struct g_raid_md_object *md,
2622     struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk)
2623 {
2624         struct g_raid_softc *sc;
2625         struct g_raid_md_intel_object *mdi;
2626         struct g_raid_md_intel_perdisk *pd;
2627         struct g_raid_subdisk *sd;
2628
2629         sc = md->mdo_softc;
2630         mdi = (struct g_raid_md_intel_object *)md;
2631         pd = (struct g_raid_md_intel_perdisk *)tdisk->d_md_data;
2632
2633         /* We can't fail disk that is not a part of array now. */
2634         if (pd->pd_disk_pos < 0)
2635                 return (-1);
2636
2637         /*
2638          * Mark disk as failed in metadata and try to write that metadata
2639          * to the disk itself to prevent it's later resurrection as STALE.
2640          */
2641         mdi->mdio_meta->disk[pd->pd_disk_pos].flags = INTEL_F_FAILED;
2642         pd->pd_disk_meta.flags = INTEL_F_FAILED;
2643         g_raid_md_intel_print(mdi->mdio_meta);
2644         if (tdisk->d_consumer)
2645                 intel_meta_write(tdisk->d_consumer, mdi->mdio_meta);
2646
2647         /* Change states. */
2648         g_raid_change_disk_state(tdisk, G_RAID_DISK_S_FAILED);
2649         TAILQ_FOREACH(sd, &tdisk->d_subdisks, sd_next) {
2650                 g_raid_change_subdisk_state(sd,
2651                     G_RAID_SUBDISK_S_FAILED);
2652                 g_raid_event_send(sd, G_RAID_SUBDISK_E_FAILED,
2653                     G_RAID_EVENT_SUBDISK);
2654         }
2655
2656         /* Write updated metadata to remaining disks. */
2657         g_raid_md_write_intel(md, NULL, NULL, tdisk);
2658
2659         /* Check if anything left except placeholders. */
2660         if (g_raid_ndisks(sc, -1) ==
2661             g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE))
2662                 g_raid_destroy_node(sc, 0);
2663         else
2664                 g_raid_md_intel_refill(sc);
2665         return (0);
2666 }
2667
2668 static int
2669 g_raid_md_free_disk_intel(struct g_raid_md_object *md,
2670     struct g_raid_disk *disk)
2671 {
2672         struct g_raid_md_intel_perdisk *pd;
2673
2674         pd = (struct g_raid_md_intel_perdisk *)disk->d_md_data;
2675         if (pd->pd_meta != NULL) {
2676                 free(pd->pd_meta, M_MD_INTEL);
2677                 pd->pd_meta = NULL;
2678         }
2679         free(pd, M_MD_INTEL);
2680         disk->d_md_data = NULL;
2681         return (0);
2682 }
2683
2684 static int
2685 g_raid_md_free_volume_intel(struct g_raid_md_object *md,
2686     struct g_raid_volume *vol)
2687 {
2688         struct g_raid_md_intel_pervolume *pv;
2689
2690         pv = (struct g_raid_md_intel_pervolume *)vol->v_md_data;
2691         free(pv, M_MD_INTEL);
2692         vol->v_md_data = NULL;
2693         return (0);
2694 }
2695
2696 static int
2697 g_raid_md_free_intel(struct g_raid_md_object *md)
2698 {
2699         struct g_raid_md_intel_object *mdi;
2700
2701         mdi = (struct g_raid_md_intel_object *)md;
2702         if (!mdi->mdio_started) {
2703                 mdi->mdio_started = 0;
2704                 callout_stop(&mdi->mdio_start_co);
2705                 G_RAID_DEBUG1(1, md->mdo_softc,
2706                     "root_mount_rel %p", mdi->mdio_rootmount);
2707                 root_mount_rel(mdi->mdio_rootmount);
2708                 mdi->mdio_rootmount = NULL;
2709         }
2710         if (mdi->mdio_meta != NULL) {
2711                 free(mdi->mdio_meta, M_MD_INTEL);
2712                 mdi->mdio_meta = NULL;
2713         }
2714         return (0);
2715 }
2716
2717 G_RAID_MD_DECLARE(intel, "Intel");