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imsm: update metadata for dirty -> clean or resync -> idle events
[thirdparty/mdadm.git] / super-intel.c
CommitLineData
cdddbdbc
DW		 1/*
2 * mdadm - Intel(R) Matrix Storage Manager Support
3 *
4 * Copyright (C) 2002-2007 Intel Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * more details.
14 *
15 * You should have received a copy of the GNU General Public License along with
16 * this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
18 */
19
20#include "mdadm.h"
c2a1e7da 21#include "mdmon.h"
cdddbdbc
DW		 22#include <values.h>
23#include <scsi/sg.h>
24#include <ctype.h>
25
26/* MPB == Metadata Parameter Block */
27#define MPB_SIGNATURE "Intel Raid ISM Cfg Sig. "
28#define MPB_SIG_LEN (strlen(MPB_SIGNATURE))
29#define MPB_VERSION_RAID0 "1.0.00"
30#define MPB_VERSION_RAID1 "1.1.00"
31#define MPB_VERSION_RAID5 "1.2.02"
32#define MAX_SIGNATURE_LENGTH 32
33#define MAX_RAID_SERIAL_LEN 16
34
35/* Disk configuration info. */
36#define IMSM_MAX_DEVICES 255
37struct imsm_disk {
38 __u8 serial[MAX_RAID_SERIAL_LEN];/* 0xD8 - 0xE7 ascii serial number */
39 __u32 total_blocks; /* 0xE8 - 0xEB total blocks */
40 __u32 scsi_id; /* 0xEC - 0xEF scsi ID */
41 __u32 status; /* 0xF0 - 0xF3 */
42#define SPARE_DISK 0x01 /* Spare */
43#define CONFIGURED_DISK 0x02 /* Member of some RaidDev */
44#define FAILED_DISK 0x04 /* Permanent failure */
45#define USABLE_DISK 0x08 /* Fully usable unless FAILED_DISK is set */
46
47#define IMSM_DISK_FILLERS 5
48 __u32 filler[IMSM_DISK_FILLERS]; /* 0xF4 - 0x107 MPB_DISK_FILLERS for future expansion */
49};
50
51/* RAID map configuration infos. */
52struct imsm_map {
53 __u32 pba_of_lba0; /* start address of partition */
54 __u32 blocks_per_member;/* blocks per member */
55 __u32 num_data_stripes; /* number of data stripes */
56 __u16 blocks_per_strip;
57 __u8 map_state; /* Normal, Uninitialized, Degraded, Failed */
58#define IMSM_T_STATE_NORMAL 0
59#define IMSM_T_STATE_UNINITIALIZED 1
60#define IMSM_T_STATE_DEGRADED 2 /* FIXME: is this correct? */
61#define IMSM_T_STATE_FAILED 3 /* FIXME: is this correct? */
62 __u8 raid_level;
63#define IMSM_T_RAID0 0
64#define IMSM_T_RAID1 1
65#define IMSM_T_RAID5 5 /* since metadata version 1.2.02 ? */
66 __u8 num_members; /* number of member disks */
67 __u8 reserved[3];
68 __u32 filler[7]; /* expansion area */
69 __u32 disk_ord_tbl[1]; /* disk_ord_tbl[num_members],
70 top byte special */
71} __attribute__ ((packed));
72
73struct imsm_vol {
74 __u32 reserved[2];
75 __u8 migr_state; /* Normal or Migrating */
76 __u8 migr_type; /* Initializing, Rebuilding, ... */
77 __u8 dirty;
78 __u8 fill[1];
79 __u32 filler[5];
80 struct imsm_map map[1];
81 /* here comes another one if migr_state */
82} __attribute__ ((packed));
83
84struct imsm_dev {
85 __u8 volume[MAX_RAID_SERIAL_LEN];
86 __u32 size_low;
87 __u32 size_high;
88 __u32 status; /* Persistent RaidDev status */
89 __u32 reserved_blocks; /* Reserved blocks at beginning of volume */
90#define IMSM_DEV_FILLERS 12
91 __u32 filler[IMSM_DEV_FILLERS];
92 struct imsm_vol vol;
93} __attribute__ ((packed));
94
95struct imsm_super {
96 __u8 sig[MAX_SIGNATURE_LENGTH]; /* 0x00 - 0x1F */
97 __u32 check_sum; /* 0x20 - 0x23 MPB Checksum */
98 __u32 mpb_size; /* 0x24 - 0x27 Size of MPB */
99 __u32 family_num; /* 0x28 - 0x2B Checksum from first time this config was written */
100 __u32 generation_num; /* 0x2C - 0x2F Incremented each time this array's MPB is written */
101 __u32 reserved[2]; /* 0x30 - 0x37 */
102 __u8 num_disks; /* 0x38 Number of configured disks */
103 __u8 num_raid_devs; /* 0x39 Number of configured volumes */
104 __u8 fill[2]; /* 0x3A - 0x3B */
105#define IMSM_FILLERS 39
106 __u32 filler[IMSM_FILLERS]; /* 0x3C - 0xD7 RAID_MPB_FILLERS */
107 struct imsm_disk disk[1]; /* 0xD8 diskTbl[numDisks] */
108 /* here comes imsm_dev[num_raid_devs] */
109} __attribute__ ((packed));
110
111#ifndef MDASSEMBLE
112static char *map_state_str[] = { "normal", "uninitialized", "degraded", "failed" };
113#endif
114
115static unsigned long long mpb_sectors(struct imsm_super *mpb)
116{
117 __u32 size = __le32_to_cpu(mpb->mpb_size);
118
119 return ((size + (512-1)) & (~(512-1))) / 512;
120}
121
122/* internal representation of IMSM metadata */
123struct intel_super {
124 union {
125 struct imsm_super *mpb;
126 void *buf;
127 };
c2a1e7da 128 int updates_pending;
cdddbdbc
DW		 129 struct dl {
130 struct dl *next;
131 int index;
132 __u8 serial[MAX_RAID_SERIAL_LEN];
133 int major, minor;
134 char *devname;
135 int fd;
136 } *disks;
137};
138
139static struct supertype *match_metadata_desc_imsm(char *arg)
140{
141 struct supertype *st;
142
143 if (strcmp(arg, "imsm") != 0 &&
144 strcmp(arg, "default") != 0
145 )
146 return NULL;
147
148 st = malloc(sizeof(*st));
149 st->ss = &super_imsm;
150 st->max_devs = IMSM_MAX_DEVICES;
151 st->minor_version = 0;
152 st->sb = NULL;
153 return st;
154}
155
156static struct supertype *match_metadata_desc_imsm_raid(char *arg)
157{
158 struct supertype *st;
159
160 if (strcmp(arg, "imsm/raid") != 0 &&
161 strcmp(arg, "raid") != 0 &&
162 strcmp(arg, "default") != 0
163 )
164 return NULL;
165
166 st = malloc(sizeof(*st));
167 st->ss = &super_imsm_raid;
168 st->max_devs = IMSM_MAX_DEVICES;
169 st->minor_version = 0;
170 st->sb = NULL;
171 return st;
172}
173
174static __u8 *get_imsm_version(struct imsm_super *mpb)
175{
176 return &mpb->sig[MPB_SIG_LEN];
177}
178
179static struct imsm_disk *get_imsm_disk(struct imsm_super *mpb, __u8 index)
180{
181 if (index > mpb->num_disks - 1)
182 return NULL;
183 return &mpb->disk[index];
184}
185
186static __u32 gen_imsm_checksum(struct imsm_super *mpb)
187{
188 __u32 end = mpb->mpb_size / sizeof(end);
189 __u32 *p = (__u32 *) mpb;
190 __u32 sum = 0;
191
192 while (end--)
193 sum += __le32_to_cpu(*p++);
194
195 return sum - __le32_to_cpu(mpb->check_sum);
196}
197
198static size_t sizeof_imsm_dev(struct imsm_dev *dev)
199{
200 size_t size = sizeof(*dev);
201
202 /* each map has disk_ord_tbl[num_members - 1] additional space */
203 size += sizeof(__u32) * (dev->vol.map[0].num_members - 1);
204
205 /* migrating means an additional map */
206 if (dev->vol.migr_state) {
207 size += sizeof(struct imsm_map);
208 size += sizeof(__u32) * (dev->vol.map[1].num_members - 1);
209 }
210
211 return size;
212}
213
214static struct imsm_dev *get_imsm_dev(struct imsm_super *mpb, __u8 index)
215{
216 int offset;
217 int i;
218 void *_mpb = mpb;
219
220 if (index > mpb->num_raid_devs - 1)
221 return NULL;
222
223 /* devices start after all disks */
224 offset = ((void *) &mpb->disk[mpb->num_disks]) - _mpb;
225
226 for (i = 0; i <= index; i++)
227 if (i == index)
228 return _mpb + offset;
229 else
230 offset += sizeof_imsm_dev(_mpb + offset);
231
232 return NULL;
233}
234
235static __u32 get_imsm_disk_idx(struct imsm_map *map, int slot)
236{
237 __u32 *ord_tbl = &map->disk_ord_tbl[slot];
238
239 /* top byte is 'special' */
240 return __le32_to_cpu(*ord_tbl & ~(0xff << 24));
241}
242
cdddbdbc
DW		 243static int get_imsm_raid_level(struct imsm_map *map)
244{
245 if (map->raid_level == 1) {
246 if (map->num_members == 2)
247 return 1;
248 else
249 return 10;
250 }
251
252 return map->raid_level;
253}
254
4f5bc454 255#ifndef MDASSEMBLE
cdddbdbc
DW		 256static void print_imsm_dev(struct imsm_dev *dev, int index)
257{
258 __u64 sz;
259 int slot;
260 struct imsm_map *map = dev->vol.map;
261
262 printf("\n");
263 printf("[%s]:\n", dev->volume);
264 printf(" RAID Level : %d\n", get_imsm_raid_level(map));
265 printf(" Members : %d\n", map->num_members);
266 for (slot = 0; slot < map->num_members; slot++)
267 if (index == get_imsm_disk_idx(map, slot))
268 break;
269 if (slot < map->num_members)
270 printf(" This Slot : %d\n", slot);
271 else
272 printf(" This Slot : ?\n");
273 sz = __le32_to_cpu(dev->size_high);
274 sz <<= 32;
275 sz += __le32_to_cpu(dev->size_low);
276 printf(" Array Size : %llu%s\n", (unsigned long long)sz,
277 human_size(sz * 512));
278 sz = __le32_to_cpu(map->blocks_per_member);
279 printf(" Per Dev Size : %llu%s\n", (unsigned long long)sz,
280 human_size(sz * 512));
281 printf(" Sector Offset : %u\n",
282 __le32_to_cpu(map->pba_of_lba0));
283 printf(" Num Stripes : %u\n",
284 __le32_to_cpu(map->num_data_stripes));
285 printf(" Chunk Size : %u KiB\n",
286 __le16_to_cpu(map->blocks_per_strip) / 2);
287 printf(" Reserved : %d\n", __le32_to_cpu(dev->reserved_blocks));
288 printf(" Migrate State : %s\n", dev->vol.migr_state ? "migrating" : "idle");
289 printf(" Dirty State : %s\n", dev->vol.dirty ? "dirty" : "clean");
290 printf(" Map State : %s\n", map_state_str[map->map_state]);
291}
292
293static void print_imsm_disk(struct imsm_super *mpb, int index)
294{
295 struct imsm_disk *disk = get_imsm_disk(mpb, index);
296 char str[MAX_RAID_SERIAL_LEN];
297 __u32 s;
298 __u64 sz;
299
300 printf("\n");
301 snprintf(str, MAX_RAID_SERIAL_LEN, "%s", disk->serial);
302 printf(" Disk%02d Serial : %s\n", index, str);
303 s = __le32_to_cpu(disk->status);
304 printf(" State :%s%s%s%s\n", s&SPARE_DISK ? " spare" : "",
305 s&CONFIGURED_DISK ? " active" : "",
306 s&FAILED_DISK ? " failed" : "",
307 s&USABLE_DISK ? " usable" : "");
308 printf(" Id : %08x\n", __le32_to_cpu(disk->scsi_id));
309 sz = __le32_to_cpu(disk->total_blocks) - mpb_sectors(mpb);
310 printf(" Usable Size : %llu%s\n", (unsigned long long)sz,
311 human_size(sz * 512));
312}
313
314static void examine_super_imsm(struct supertype *st, char *homehost)
315{
316 struct intel_super *super = st->sb;
317 struct imsm_super *mpb = super->mpb;
318 char str[MAX_SIGNATURE_LENGTH];
319 int i;
320 __u32 sum;
321
322 snprintf(str, MPB_SIG_LEN, "%s", mpb->sig);
323 printf(" Magic : %s\n", str);
324 snprintf(str, strlen(MPB_VERSION_RAID0), "%s", get_imsm_version(mpb));
325 printf(" Version : %s\n", get_imsm_version(mpb));
326 printf(" Family : %08x\n", __le32_to_cpu(mpb->family_num));
327 printf(" Generation : %08x\n", __le32_to_cpu(mpb->generation_num));
328 sum = __le32_to_cpu(mpb->check_sum);
329 printf(" Checksum : %08x %s\n", sum,
330 gen_imsm_checksum(mpb) == sum ? "correct" : "incorrect");
331 printf(" Disks : %d\n", mpb->num_disks);
332 printf(" RAID Devices : %d\n", mpb->num_raid_devs);
333 print_imsm_disk(mpb, super->disks->index);
334 for (i = 0; i < mpb->num_raid_devs; i++)
335 print_imsm_dev(get_imsm_dev(mpb, i), super->disks->index);
336 for (i = 0; i < mpb->num_disks; i++) {
337 if (i == super->disks->index)
338 continue;
339 print_imsm_disk(mpb, i);
340 }
341}
342
343static void brief_examine_super_imsm(struct supertype *st)
344{
345 struct intel_super *super = st->sb;
346 struct imsm_super *mpb = super->mpb;
347
348 printf("ARRAY /dev/imsm family=%08x metadata=external:imsm\n",
349 __le32_to_cpu(mpb->family_num));
350}
351
352static void detail_super_imsm(struct supertype *st, char *homehost)
353{
354 printf("%s\n", __FUNCTION__);
355}
356
357static void brief_detail_super_imsm(struct supertype *st)
358{
359 printf("%s\n", __FUNCTION__);
360}
361#endif
362
363static int match_home_imsm(struct supertype *st, char *homehost)
364{
365 printf("%s\n", __FUNCTION__);
366
367 return 0;
368}
369
370static void uuid_from_super_imsm(struct supertype *st, int uuid[4])
371{
372 printf("%s\n", __FUNCTION__);
373}
374
4f5bc454
DW		 375static void
376get_imsm_numerical_version(struct imsm_super *mpb, int *m, int *p)
cdddbdbc 377{
cdddbdbc
DW		 378 __u8 *v = get_imsm_version(mpb);
379 __u8 *end = mpb->sig + MAX_SIGNATURE_LENGTH;
380 char major[] = { 0, 0, 0 };
381 char minor[] = { 0 ,0, 0 };
382 char patch[] = { 0, 0, 0 };
383 char *ver_parse[] = { major, minor, patch };
384 int i, j;
385
386 i = j = 0;
387 while (*v != '\0' && v < end) {
388 if (*v != '.' && j < 2)
389 ver_parse[i][j++] = *v;
390 else {
391 i++;
392 j = 0;
393 }
394 v++;
395 }
396
4f5bc454
DW		 397 *m = strtol(minor, NULL, 0);
398 *p = strtol(patch, NULL, 0);
399}
400
401static void getinfo_super_imsm(struct supertype *st, struct mdinfo *info)
402{
403 struct intel_super *super = st->sb;
404 struct imsm_super *mpb = super->mpb;
405 struct imsm_disk *disk;
406 __u32 s;
407 int i, j;
408
cdddbdbc 409 info->array.major_version = 2000;
4f5bc454
DW		 410 get_imsm_numerical_version(mpb, &info->array.minor_version,
411 &info->array.patch_version);
cdddbdbc
DW		 412 info->array.raid_disks = mpb->num_disks;
413 info->array.level = LEVEL_CONTAINER;
414 info->array.layout = 0;
415 info->array.md_minor = -1;
416 info->array.ctime = __le32_to_cpu(mpb->generation_num); //??
417 info->array.utime = 0;
418 info->array.chunk_size = 0;
419
420 info->disk.major = 0;
421 info->disk.minor = 0;
422 info->disk.number = super->disks->index;
423 info->disk.raid_disk = -1;
424 /* is this disk a member of a raid device? */
425 for (i = 0; i < mpb->num_raid_devs; i++) {
426 struct imsm_dev *dev = get_imsm_dev(mpb, i);
427 struct imsm_map *map = dev->vol.map;
428
429 for (j = 0; j < map->num_members; j++) {
430 __u32 index = get_imsm_disk_idx(map, j);
431
432 if (index == super->disks->index) {
433 info->disk.raid_disk = super->disks->index;
434 break;
435 }
436 }
437 if (info->disk.raid_disk != -1)
438 break;
439 }
440 disk = get_imsm_disk(mpb, super->disks->index);
441 s = __le32_to_cpu(disk->status);
442 info->disk.state = s & CONFIGURED_DISK ? (1 << MD_DISK_ACTIVE) : 0;
443 info->disk.state |= s & FAILED_DISK ? (1 << MD_DISK_FAULTY) : 0;
444 info->disk.state |= s & USABLE_DISK ? (1 << MD_DISK_SYNC) : 0;
445 info->reshape_active = 0;
446}
447
448static void getinfo_super_imsm_raid(struct supertype *st, struct mdinfo *info)
449{
450 printf("%s\n", __FUNCTION__);
451}
452
453static int update_super_imsm(struct supertype *st, struct mdinfo *info,
454 char *update, char *devname, int verbose,
455 int uuid_set, char *homehost)
456{
f352c545
DW		 457 /* FIXME */
458
459 /* For 'assemble' and 'force' we need to return non-zero if any
460 * change was made. For others, the return value is ignored.
461 * Update options are:
462 * force-one : This device looks a bit old but needs to be included,
463 * update age info appropriately.
464 * assemble: clear any 'faulty' flag to allow this device to
465 * be assembled.
466 * force-array: Array is degraded but being forced, mark it clean
467 * if that will be needed to assemble it.
468 *
469 * newdev: not used ????
470 * grow: Array has gained a new device - this is currently for
471 * linear only
472 * resync: mark as dirty so a resync will happen.
473 * name: update the name - preserving the homehost
474 *
475 * Following are not relevant for this imsm:
476 * sparc2.2 : update from old dodgey metadata
477 * super-minor: change the preferred_minor number
478 * summaries: update redundant counters.
479 * uuid: Change the uuid of the array to match watch is given
480 * homehost: update the recorded homehost
481 * _reshape_progress: record new reshape_progress position.
482 */
483 int rv = 0;
484 //struct intel_super *super = st->sb;
485 //struct imsm_super *mpb = super->mpb;
486
487 if (strcmp(update, "grow") == 0) {
488 }
489 if (strcmp(update, "resync") == 0) {
490 /* dev->vol.dirty = 1; */
491 }
492
493 /* IMSM has no concept of UUID or homehost */
494
495 return rv;
cdddbdbc
DW		 496}
497
498static __u64 avail_size_imsm(struct supertype *st, __u64 size)
499{
500 printf("%s\n", __FUNCTION__);
501
502 return 0;
503}
504
505static int compare_super_imsm(struct supertype *st, struct supertype *tst)
506{
507 /*
508 * return:
509 * 0 same, or first was empty, and second was copied
510 * 1 second had wrong number
511 * 2 wrong uuid
512 * 3 wrong other info
513 */
514 struct intel_super *first = st->sb;
515 struct intel_super *sec = tst->sb;
516
517 if (!first) {
518 st->sb = tst->sb;
519 tst->sb = NULL;
520 return 0;
521 }
522
523 if (memcmp(first->mpb->sig, sec->mpb->sig, MAX_SIGNATURE_LENGTH) != 0)
524 return 3;
525 if (first->mpb->family_num != sec->mpb->family_num)
526 return 3;
527 if (first->mpb->mpb_size != sec->mpb->mpb_size)
528 return 3;
529 if (first->mpb->check_sum != sec->mpb->check_sum)
530 return 3;
531
532 return 0;
533}
534
535extern int scsi_get_serial(int fd, void *buf, size_t buf_len);
536
537static int imsm_read_serial(int fd, char *devname,
538 __u8 serial[MAX_RAID_SERIAL_LEN])
539{
540 unsigned char scsi_serial[255];
541 struct stat stb;
542 int sg_fd;
543 int minor;
544 char sg_path[20];
545 int rv;
546 int rsp_len;
547 int i, cnt;
548
549 memset(scsi_serial, 0, sizeof(scsi_serial));
550 fstat(fd, &stb);
551 minor = minor(stb.st_rdev);
552 minor /= 16;
553
554 sprintf(sg_path, "/dev/sg%d", minor);
555 sg_fd = open(sg_path, O_RDONLY);
556 if (sg_fd < 0) {
557 if (devname)
558 fprintf(stderr,
559 Name ": Failed to open %s for %s: %s\n",
560 sg_path, devname, strerror(errno));
561 return 1;
562 }
563
564 rv = scsi_get_serial(sg_fd, scsi_serial, sizeof(scsi_serial));
565 close(sg_fd);
566
567 if (rv != 0) {
568 if (devname)
569 fprintf(stderr,
570 Name ": Failed to retrieve serial for %s\n",
571 devname);
572 return rv;
573 }
574
575 rsp_len = scsi_serial[3];
576 for (i = 0, cnt = 0; i < rsp_len; i++) {
577 if (!isspace(scsi_serial[4 + i]))
578 serial[cnt++] = scsi_serial[4 + i];
579 if (cnt == MAX_RAID_SERIAL_LEN)
580 break;
581 }
582
583 serial[MAX_RAID_SERIAL_LEN - 1] = '\0';
584
585 return 0;
586}
587
588static int
589load_imsm_disk(int fd, struct intel_super *super, char *devname, int keep_fd)
590{
591 struct imsm_super *mpb = super->mpb;
592 struct dl *dl;
593 struct stat stb;
594 struct imsm_disk *disk;
595 int rv;
596 int i;
597
598 dl = malloc(sizeof(*dl));
599 if (!dl) {
600 if (devname)
601 fprintf(stderr,
602 Name ": failed to allocate disk buffer for %s\n",
603 devname);
604 return 2;
605 }
606 memset(dl, 0, sizeof(*dl));
607
608 fstat(fd, &stb);
609 dl->major = major(stb.st_rdev);
610 dl->minor = minor(stb.st_rdev);
611 dl->next = super->disks;
612 dl->fd = keep_fd ? fd : -1;
613 dl->devname = devname ? strdup(devname) : NULL;
614 dl->index = -1;
615 super->disks = dl;
616 rv = imsm_read_serial(fd, devname, dl->serial);
617
618 if (rv != 0)
619 return 2;
620
621 /* look up this disk's index */
622 for (i = 0; i < mpb->num_disks; i++) {
623 disk = get_imsm_disk(mpb, i);
624
625 if (memcmp(disk->serial, dl->serial, MAX_RAID_SERIAL_LEN) == 0)
626 break;
627 }
628
629 if (i > mpb->num_disks)
630 return 2;
631
632 dl->index = i;
633
634 return 0;
635}
636
637/* load_imsm_mpb - read matrix metadata
638 * allocates super->mpb to be freed by free_super
639 */
640static int load_imsm_mpb(int fd, struct intel_super *super, char *devname)
641{
642 unsigned long long dsize;
643 size_t len, mpb_size;
644 unsigned long long sectors;
645 struct stat;
646 struct imsm_super anchor;
647 __u32 check_sum;
648
649 memset(super, 0, sizeof(*super));
650 get_dev_size(fd, NULL, &dsize);
651
652 if (lseek64(fd, dsize - (512 * 2), SEEK_SET) < 0) {
653 if (devname)
654 fprintf(stderr,
655 Name ": Cannot seek to anchor block on %s: %s\n",
656 devname, strerror(errno));
657 return 1;
658 }
659
660 len = sizeof(anchor);
661 if (read(fd, &anchor, len) != len) {
662 if (devname)
663 fprintf(stderr,
664 Name ": Cannot read anchor block on %s: %s\n",
665 devname, strerror(errno));
666 return 1;
667 }
668
669 if (strncmp((char *) anchor.sig, MPB_SIGNATURE, MPB_SIG_LEN) != 0) {
670 if (devname)
671 fprintf(stderr,
672 Name ": no IMSM anchor on %s\n", devname);
673 return 2;
674 }
675
676 mpb_size = __le32_to_cpu(anchor.mpb_size);
677 super->mpb = malloc(mpb_size < 512 ? 512 : mpb_size);
678 if (!super->mpb) {
679 if (devname)
680 fprintf(stderr,
681 Name ": unable to allocate %zu byte mpb buffer\n",
682 mpb_size);
683 return 2;
684 }
685 memcpy(super->buf, &anchor, sizeof(anchor));
686
687 /* read the rest of the first block */
688 len = 512 - sizeof(anchor);
689 if (read(fd, super->buf + sizeof(anchor), len) != len) {
690 if (devname)
691 fprintf(stderr,
692 Name ": Cannot read anchor remainder on %s: %s\n",
693 devname, strerror(errno));
694 return 2;
695 }
696
697 sectors = mpb_sectors(&anchor) - 1;
698 if (!sectors)
699 return load_imsm_disk(fd, super, devname, 0);
700
701 /* read the extended mpb */
702 if (lseek64(fd, dsize - (512 * (2 + sectors)), SEEK_SET) < 0) {
703 if (devname)
704 fprintf(stderr,
705 Name ": Cannot seek to extended mpb on %s: %s\n",
706 devname, strerror(errno));
707 return 1;
708 }
709
710 len = mpb_size - 512;
711 if (read(fd, super->buf + 512, len) != len) {
712 if (devname)
713 fprintf(stderr,
714 Name ": Cannot read extended mpb on %s: %s\n",
715 devname, strerror(errno));
716 return 2;
717 }
718
719 check_sum = gen_imsm_checksum(super->mpb);
720 if (check_sum != __le32_to_cpu(super->mpb->check_sum)) {
721 if (devname)
722 fprintf(stderr,
723 Name ": IMSM checksum %x != %x on %s\n",
724 check_sum, __le32_to_cpu(super->mpb->check_sum),
725 devname);
726 return 2;
727 }
728
729 return load_imsm_disk(fd, super, devname, 0);
730}
731
732struct superswitch super_imsm_container;
733
734static void free_imsm_disks(struct intel_super *super)
735{
736 while (super->disks) {
737 struct dl *d = super->disks;
738
739 super->disks = d->next;
740 if (d->fd >= 0)
741 close(d->fd);
742 if (d->devname)
743 free(d->devname);
744 free(d);
745 }
746}
747
748static void free_imsm(struct intel_super *super)
749{
750 if (super->mpb)
751 free(super->mpb);
752 free_imsm_disks(super);
753 free(super);
754}
755
756
757static void free_super_imsm(struct supertype *st)
758{
759 struct intel_super *super = st->sb;
760
761 if (!super)
762 return;
763
764 free_imsm(super);
765 st->sb = NULL;
766}
767
768#ifndef MDASSEMBLE
769static int load_super_imsm_all(struct supertype *st, int fd, void **sbp,
770 char *devname, int keep_fd)
771{
772 struct mdinfo *sra;
773 struct intel_super *super;
774 struct mdinfo *sd, *best = NULL;
775 __u32 bestgen = 0;
776 __u32 gen;
777 char nm[20];
778 int dfd;
779 int rv;
780
781 /* check if this disk is a member of an active array */
782 sra = sysfs_read(fd, 0, GET_LEVEL|GET_VERSION|GET_DEVS|GET_STATE);
783 if (!sra)
784 return 1;
785
786 if (sra->array.major_version != -1 ||
787 sra->array.minor_version != -2 ||
788 strcmp(sra->text_version, "imsm") != 0)
789 return 1;
790
791 super = malloc(sizeof(*super));
792 if (!super)
793 return 1;
794
795 /* find the most up to date disk in this array */
796 for (sd = sra->devs; sd; sd = sd->next) {
797 sprintf(nm, "%d:%d", sd->disk.major, sd->disk.minor);
798 dfd = dev_open(nm, keep_fd ? O_RDWR : O_RDONLY);
799 if (!dfd) {
800 free_imsm(super);
801 return 2;
802 }
803 rv = load_imsm_mpb(dfd, super, NULL);
804 if (!keep_fd)
805 close(dfd);
806 if (rv == 0) {
807 gen = __le32_to_cpu(super->mpb->generation_num);
808 if (!best || gen > bestgen) {
809 bestgen = gen;
810 best = sd;
811 }
812 } else {
813 free_imsm(super);
814 return 2;
815 }
816 }
817
818 if (!best) {
819 free_imsm(super);
820 return 1;
821 }
822
823 /* load the most up to date anchor */
824 sprintf(nm, "%d:%d", best->disk.major, best->disk.minor);
825 dfd = dev_open(nm, O_RDONLY);
826 if (!dfd) {
827 free_imsm(super);
828 return 1;
829 }
830 rv = load_imsm_mpb(dfd, super, NULL);
831 close(dfd);
832 if (rv != 0) {
833 free_imsm(super);
834 return 2;
835 }
836
837 /* reset the disk list */
838 free_imsm_disks(super);
839
840 /* populate disk list */
841 for (sd = sra->devs ; sd ; sd = sd->next) {
842 sprintf(nm, "%d:%d", sd->disk.major, sd->disk.minor);
843 dfd = dev_open(nm, keep_fd? O_RDWR : O_RDONLY);
844 if (!dfd) {
845 free_imsm(super);
846 return 2;
847 }
848 load_imsm_disk(dfd, super, NULL, keep_fd);
849 if (!keep_fd)
850 close(dfd);
851 }
852
853 *sbp = super;
854 if (st->ss == NULL) {
855 st->ss = &super_imsm_container;
856 st->minor_version = 0;
857 st->max_devs = IMSM_MAX_DEVICES;
858 }
859
860 return 0;
861}
862#endif
863
864static int load_super_imsm(struct supertype *st, int fd, char *devname)
865{
866 struct intel_super *super;
867 int rv;
868
869#ifndef MDASSEMBLE
3dbccbcf 870 if (load_super_imsm_all(st, fd, &st->sb, devname, 1) == 0)
cdddbdbc
DW		 871 return 0;
872#endif
873
874 super = malloc(sizeof(*super));
875 if (!super) {
876 fprintf(stderr,
877 Name ": malloc of %zu failed.\n",
878 sizeof(*super));
879 return 1;
880 }
881
882 rv = load_imsm_mpb(fd, super, devname);
883
884 if (rv) {
885 if (devname)
886 fprintf(stderr,
887 Name ": Failed to load all information "
888 "sections on %s\n", devname);
889 free_imsm(super);
890 return rv;
891 }
892
893 st->sb = super;
894 if (st->ss == NULL) {
895 st->ss = &super_imsm;
896 st->minor_version = 0;
897 st->max_devs = IMSM_MAX_DEVICES;
898 }
899
900 return 0;
901}
902
903static int init_zero_imsm(struct supertype *st, mdu_array_info_t *info,
904 unsigned long long size, char *name,
905 char *homehost, int *uuid)
906{
907 printf("%s\n", __FUNCTION__);
908
909 return 0;
910}
911
912static int init_super_imsm(struct supertype *st, mdu_array_info_t *info,
913 unsigned long long size, char *name,
914 char *homehost, int *uuid)
915{
916 printf("%s\n", __FUNCTION__);
917
918 return 0;
919}
920
921static int init_super_imsm_raid(struct supertype *st, mdu_array_info_t *info,
922 unsigned long long size, char *name,
923 char *homehost, int *uuid)
924{
925 printf("%s\n", __FUNCTION__);
926
927 return 0;
928}
929
930static void add_to_super_imsm(struct supertype *st, mdu_disk_info_t *dinfo,
931 int fd, char *devname)
932{
933 printf("%s\n", __FUNCTION__);
934}
935
936static void add_to_super_imsm_raid(struct supertype *st, mdu_disk_info_t *dinfo,
937 int fd, char *devname)
938{
939 printf("%s\n", __FUNCTION__);
940}
941
942static int write_init_super_imsm(struct supertype *st)
943{
944 printf("%s\n", __FUNCTION__);
945
946 return 0;
947}
948
949static int store_zero_imsm(struct supertype *st, int fd)
950{
951 printf("%s\n", __FUNCTION__);
952
953 return 0;
954}
955
f352c545 956static void getinfo_super_n_imsm_container(struct supertype *st, struct mdinfo *info)
cdddbdbc 957{
f352c545
DW		 958 /* just need offset and size...
959 * of the metadata??
960 */
961 struct intel_super *super = st->sb;
962 struct imsm_super *mpb = super->mpb;
963 struct imsm_disk *disk = get_imsm_disk(mpb, info->disk.number);
964 int sect = mpb_sectors(mpb);
965
966 info->data_offset = __le32_to_cpu(disk->total_blocks) - (2 + sect - 1);
967 info->component_size = sect;
cdddbdbc
DW		 968}
969
970static void getinfo_super_n_raid(struct supertype *st, struct mdinfo *info)
971{
972 printf("%s\n", __FUNCTION__);
973}
974
975static int validate_geometry_imsm(struct supertype *st, int level, int layout,
976 int raiddisks, int chunk, unsigned long long size,
977 char *subdev, unsigned long long *freesize)
978{
979 printf("%s\n", __FUNCTION__);
980
981 return 0;
982}
983
984static int validate_geometry_imsm_container(struct supertype *st, int level,
985 int layout, int raiddisks, int chunk,
986 unsigned long long size, char *subdev,
987 unsigned long long *freesize)
988{
989 printf("%s\n", __FUNCTION__);
990
991 return 0;
992}
993
994static int validate_geometry_imsm_raid(struct supertype *st, int level,
995 int layout, int raiddisks, int chunk,
996 unsigned long long size, char *subdev,
997 unsigned long long *freesize)
998{
999 printf("%s\n", __FUNCTION__);
1000
1001 return 0;
1002}
1003
cdddbdbc
DW		 1004static struct mdinfo *container_content_imsm(struct supertype *st)
1005{
4f5bc454
DW		 1006 /* Given a container loaded by load_super_imsm_all,
1007 * extract information about all the arrays into
1008 * an mdinfo tree.
1009 *
1010 * For each imsm_dev create an mdinfo, fill it in,
1011 * then look for matching devices in super->disks
1012 * and create appropriate device mdinfo.
1013 */
1014 struct intel_super *super = st->sb;
1015 struct imsm_super *mpb = super->mpb;
1016 struct mdinfo *rest = NULL;
1017 int i;
cdddbdbc 1018
4f5bc454
DW		 1019 for (i = 0; i < mpb->num_raid_devs; i++) {
1020 struct imsm_dev *dev = get_imsm_dev(mpb, i);
1021 struct imsm_vol *vol = &dev->vol;
1022 struct imsm_map *map = vol->map;
1023 struct mdinfo *this;
1024 __u64 sz;
1025 int slot;
1026
1027 this = malloc(sizeof(*this));
1028 memset(this, 0, sizeof(*this));
1029 this->next = rest;
1030 rest = this;
1031
1032 this->array.major_version = 2000;
1033 get_imsm_numerical_version(mpb, &this->array.minor_version,
1034 &this->array.patch_version);
1035 this->array.level = get_imsm_raid_level(map);
1036 this->array.raid_disks = map->num_members;
1037 switch(this->array.level) {
1038 case 0:
1039 case 1:
1040 this->array.layout = 0;
1041 break;
1042 case 5:
1043 case 6:
1044 this->array.layout = ALGORITHM_LEFT_SYMMETRIC;
1045 break;
1046 case 10:
1047 this->array.layout = 0x102; //FIXME is this correct?
1048 break;
1049 default:
1050 this->array.layout = -1; // FIXME
1051 }
1052 this->array.md_minor = -1;
1053 this->array.ctime = 0;
1054 this->array.utime = 0;
1055 this->array.chunk_size = __le16_to_cpu(map->blocks_per_strip) << 9;
1056 this->array.state = !vol->dirty;
1057 this->container_member = i;
0fd5c350
DW		 1058 if (map->map_state == IMSM_T_STATE_UNINITIALIZED || dev->vol.dirty)
1059 this->resync_start = 0;
1060 else
1061 this->resync_start = ~0ULL;
1062
4f5bc454
DW		 1063 strncpy(this->name, (char *) dev->volume, MAX_RAID_SERIAL_LEN);
1064 this->name[MAX_RAID_SERIAL_LEN] = 0;
1065
1066 memset(this->uuid, 0, sizeof(this->uuid));
1067
1068 sz = __le32_to_cpu(dev->size_high);
1069 sz <<= 32;
1070 sz += __le32_to_cpu(dev->size_low);
1071 this->component_size = sz;
1072 this->array.size = this->component_size / 2;
1073
1074 for (slot = 0 ; slot < map->num_members; slot++) {
1075 struct imsm_disk *disk;
1076 struct mdinfo *info_d;
1077 struct dl *d;
1078 int idx;
1079 __u32 s;
1080
1081 idx = __le32_to_cpu(map->disk_ord_tbl[slot] & ~(0xff << 24));
1082 for (d = super->disks; d ; d = d->next)
1083 if (d->index == idx)
1084 break;
1085
1086 if (d == NULL)
1087 break; /* shouldn't this be continue ?? */
1088
1089 info_d = malloc(sizeof(*info_d));
1090 if (!info_d)
1091 break; /* ditto ?? */
1092 memset(info_d, 0, sizeof(*info_d));
1093 info_d->next = this->devs;
1094 this->devs = info_d;
1095
1096 disk = get_imsm_disk(mpb, idx);
1097 s = __le32_to_cpu(disk->status);
1098
1099 info_d->disk.number = d->index;
1100 info_d->disk.major = d->major;
1101 info_d->disk.minor = d->minor;
1102 info_d->disk.raid_disk = slot;
1103 info_d->disk.state = s & CONFIGURED_DISK ? (1 << MD_DISK_ACTIVE) : 0;
1104 info_d->disk.state |= s & FAILED_DISK ? (1 << MD_DISK_FAULTY) : 0;
1105 info_d->disk.state |= s & USABLE_DISK ? (1 << MD_DISK_SYNC) : 0;
1106
1107 this->array.working_disks++;
1108
1109 info_d->events = __le32_to_cpu(mpb->generation_num);
1110 info_d->data_offset = __le32_to_cpu(map->pba_of_lba0);
1111 info_d->component_size = __le32_to_cpu(map->blocks_per_member);
1112 if (d->devname)
1113 strcpy(info_d->name, d->devname);
1114 }
1115 }
1116
1117 return rest;
cdddbdbc
DW		 1118}
1119
845dea95
NB		 1120
1121static int imsm_open_new(struct supertype *c, struct active_array *a, int inst)
1122{
1123 fprintf(stderr, "imsm: open_new %d\n", inst);
1124 return 0;
1125}
1126
1127static void imsm_mark_clean(struct active_array *a, unsigned long long sync_pos)
1128{
c2a1e7da
DW		 1129 int inst = a->info.container_member;
1130 struct intel_super *super = a->container->sb;
1131 struct imsm_dev *dev = get_imsm_dev(super->mpb, inst);
1132
1133 if (dev->vol.dirty) {
1134 fprintf(stderr, "imsm: mark clean %llu\n", sync_pos);
1135 dev->vol.dirty = 0;
1136 super->updates_pending++;
1137 }
845dea95
NB		 1138}
1139
1140static void imsm_mark_dirty(struct active_array *a)
1141{
c2a1e7da
DW		 1142 int inst = a->info.container_member;
1143 struct intel_super *super = a->container->sb;
1144 struct imsm_dev *dev = get_imsm_dev(super->mpb, inst);
1145
1146 if (!dev->vol.dirty) {
1147 fprintf(stderr, "imsm: mark dirty\n");
1148 dev->vol.dirty = 1;
1149 super->updates_pending++;
1150 }
1151}
1152
1153static __u8 imsm_check_degraded(struct imsm_super *mpb, int n, int failed)
1154{
1155 struct imsm_dev *dev = get_imsm_dev(mpb, n);
1156 struct imsm_map *map = dev->vol.map;
1157
1158 if (!failed)
1159 return map->map_state;
1160
1161 switch (get_imsm_raid_level(map)) {
1162 case 0:
1163 return IMSM_T_STATE_FAILED;
1164 break;
1165 case 1:
1166 if (failed < map->num_members)
1167 return IMSM_T_STATE_DEGRADED;
1168 else
1169 return IMSM_T_STATE_FAILED;
1170 break;
1171 case 10:
1172 {
1173 /**
1174 * check to see if any mirrors have failed,
1175 * otherwise we are degraded
1176 */
1177 int device_per_mirror = 2; /* FIXME is this always the case?
1178 * and are they always adjacent?
1179 */
1180 int failed = 0;
1181 int i;
1182
1183 for (i = 0; i < map->num_members; i++) {
1184 int idx = get_imsm_disk_idx(map, i);
1185 struct imsm_disk *disk = get_imsm_disk(mpb, idx);
1186
1187 if (__le32_to_cpu(disk->status) & FAILED_DISK)
1188 failed++;
1189
1190 if (failed >= device_per_mirror)
1191 return IMSM_T_STATE_FAILED;
1192
1193 /* reset 'failed' for next mirror set */
1194 if (!((i + 1) % device_per_mirror))
1195 failed = 0;
1196 }
1197
1198 return IMSM_T_STATE_DEGRADED;
1199 }
1200 case 5:
1201 if (failed < 2)
1202 return IMSM_T_STATE_DEGRADED;
1203 else
1204 return IMSM_T_STATE_FAILED;
1205 break;
1206 default:
1207 break;
1208 }
1209
1210 return map->map_state;
1211}
1212
1213static int imsm_count_failed(struct imsm_super *mpb, struct imsm_map *map)
1214{
1215 int i;
1216 int failed = 0;
1217 struct imsm_disk *disk;
1218
1219 for (i = 0; i < map->num_members; i++) {
1220 int idx = get_imsm_disk_idx(map, i);
1221
1222 disk = get_imsm_disk(mpb, idx);
1223 if (__le32_to_cpu(disk->status) & FAILED_DISK)
1224 failed++;
1225 }
1226
1227 return failed;
845dea95
NB		 1228}
1229
fd7cde1b
DW		 1230static void imsm_mark_sync(struct active_array *a, unsigned long long resync)
1231{
c2a1e7da
DW		 1232 int inst = a->info.container_member;
1233 struct intel_super *super = a->container->sb;
1234 struct imsm_dev *dev = get_imsm_dev(super->mpb, inst);
1235 struct imsm_map *map = dev->vol.map;
1236 int failed;
1237 __u8 map_state;
1238
1239 if (resync != ~0ULL)
1240 return;
1241
fd7cde1b 1242 fprintf(stderr, "imsm: mark sync\n");
c2a1e7da
DW		 1243
1244 failed = imsm_count_failed(super->mpb, map);
1245 map_state = imsm_check_degraded(super->mpb, inst, failed);
1246 if (!failed)
1247 map_state = IMSM_T_STATE_NORMAL;
1248 if (map->map_state != map_state) {
1249 map->map_state = map_state;
1250 super->updates_pending++;
1251 }
fd7cde1b
DW		 1252}
1253
845dea95
NB		 1254static void imsm_set_disk(struct active_array *a, int n)
1255{
1256 fprintf(stderr, "imsm: set_disk %d\n", n);
1257}
1258
c2a1e7da
DW		 1259static int store_imsm_mpb(int fd, struct intel_super *super)
1260{
1261 struct imsm_super *mpb = super->mpb;
1262 __u32 mpb_size = __le32_to_cpu(mpb->mpb_size);
1263 unsigned long long dsize;
1264 unsigned long long sectors;
1265
1266 get_dev_size(fd, NULL, &dsize);
1267
1268 /* first block is stored on second to last sector of the disk */
1269 if (lseek64(fd, dsize - (512 * 2), SEEK_SET) < 0)
1270 return 1;
1271
1272 if (write(fd, super->buf, 512) != 512)
1273 return 1;
1274
1275 if (mpb_size <= 512)
1276 return 0;
1277
1278 /* -1 because we already wrote a sector */
1279 sectors = mpb_sectors(mpb) - 1;
1280
1281 /* write the extended mpb to the sectors preceeding the anchor */
1282 if (lseek64(fd, dsize - (512 * (2 + sectors)), SEEK_SET) < 0)
1283 return 1;
1284
1285 if (write(fd, super->buf + 512, mpb_size - 512) != mpb_size - 512)
1286 return 1;
1287
1288 fsync(fd);
1289
1290 return 0;
1291}
1292
845dea95
NB		 1293static void imsm_sync_metadata(struct active_array *a)
1294{
c2a1e7da
DW		 1295 struct intel_super *super = a->container->sb;
1296 struct imsm_super *mpb = super->mpb;
1297 struct dl *d;
1298 __u32 generation;
1299 __u32 sum;
1300
1301 if (!super->updates_pending)
1302 return;
1303
845dea95 1304 fprintf(stderr, "imsm: sync_metadata\n");
c2a1e7da
DW		 1305
1306 /* 'generation' is incremented everytime the metadata is written */
1307 generation = __le32_to_cpu(mpb->generation_num);
1308 generation++;
1309 mpb->generation_num = __cpu_to_le32(generation);
1310
1311 /* recalculate checksum */
1312 sum = gen_imsm_checksum(mpb);
1313 mpb->check_sum = __cpu_to_le32(sum);
1314
1315 for (d = super->disks; d ; d = d->next)
1316 if (store_imsm_mpb(d->fd, super))
1317 fprintf(stderr, "%s: failed for device %d:%d %s\n",
1318 __func__, d->major, d->minor, strerror(errno));
1319
1320 super->updates_pending = 0;
845dea95
NB		 1321}
1322
cdddbdbc
DW		 1323struct superswitch super_imsm = {
1324#ifndef MDASSEMBLE
1325 .examine_super = examine_super_imsm,
1326 .brief_examine_super = brief_examine_super_imsm,
1327 .detail_super = detail_super_imsm,
1328 .brief_detail_super = brief_detail_super_imsm,
1329#endif
1330 .match_home = match_home_imsm,
1331 .uuid_from_super= uuid_from_super_imsm,
1332 .getinfo_super = getinfo_super_imsm,
1333 .update_super = update_super_imsm,
1334
1335 .avail_size = avail_size_imsm,
1336
1337 .compare_super = compare_super_imsm,
1338
1339 .load_super = load_super_imsm,
1340 .init_super = init_zero_imsm,
1341 .store_super = store_zero_imsm,
1342 .free_super = free_super_imsm,
1343 .match_metadata_desc = match_metadata_desc_imsm,
f352c545 1344 .getinfo_super_n = getinfo_super_n_imsm_container,
cdddbdbc
DW		 1345
1346 .validate_geometry = validate_geometry_imsm,
1347 .major = 2000,
1348 .swapuuid = 0,
1349 .external = 1,
1350 .text_version = "imsm",
845dea95
NB		 1351
1352/* for mdmon */
1353 .open_new = imsm_open_new,
1354 .load_super = load_super_imsm,
1355 .mark_clean = imsm_mark_clean,
1356 .mark_dirty = imsm_mark_dirty,
fd7cde1b 1357 .mark_sync = imsm_mark_sync,
845dea95
NB		 1358 .set_disk = imsm_set_disk,
1359 .sync_metadata = imsm_sync_metadata,
cdddbdbc
DW		 1360};
1361
1362/* super_imsm_container is set by validate_geometry_imsm when given a
1363 * device that is not part of any array
1364 */
1365struct superswitch super_imsm_container = {
1366
1367 .validate_geometry = validate_geometry_imsm_container,
1368 .init_super = init_super_imsm,
1369 .add_to_super = add_to_super_imsm,
1370 .write_init_super = write_init_super_imsm,
1371 .getinfo_super = getinfo_super_imsm,
f352c545 1372 .getinfo_super_n = getinfo_super_n_imsm_container,
cdddbdbc
DW		 1373 .load_super = load_super_imsm,
1374
1375#ifndef MDASSEMBLE
1376 .examine_super = examine_super_imsm,
1377 .brief_examine_super = brief_examine_super_imsm,
1378 .detail_super = detail_super_imsm,
1379 .brief_detail_super = brief_detail_super_imsm,
1380#endif
1381
1382 .free_super = free_super_imsm,
1383
1384 .container_content = container_content_imsm,
1385
1386 .major = 2000,
1387 .swapuuid = 0,
1388 .external = 1,
1389 .text_version = "imsm",
1390};
1391
1392struct superswitch super_imsm_raid = {
1393 .update_super = update_super_imsm,
1394 .init_super = init_super_imsm_raid,
1395 .add_to_super = add_to_super_imsm_raid,
1396 .getinfo_super = getinfo_super_imsm_raid,
1397 .getinfo_super_n = getinfo_super_n_raid,
1398 .write_init_super = write_init_super_imsm,
1399
1400 .load_super = load_super_imsm,
1401 .free_super = free_super_imsm,
1402 .match_metadata_desc = match_metadata_desc_imsm_raid,
1403
1404
1405 .validate_geometry = validate_geometry_imsm_raid,
1406 .major = 2001,
1407 .swapuuid = 0,
1408 .external = 2,
1409 .text_version = "imsm",
1410};
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