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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 | |
c2c087e6 DW |
34 | #define MPB_SECTOR_CNT 418 |
35 | #define IMSM_RESERVED_SECTORS 4096 | |
cdddbdbc DW |
36 | |
37 | /* Disk configuration info. */ | |
38 | #define IMSM_MAX_DEVICES 255 | |
39 | struct imsm_disk { | |
40 | __u8 serial[MAX_RAID_SERIAL_LEN];/* 0xD8 - 0xE7 ascii serial number */ | |
41 | __u32 total_blocks; /* 0xE8 - 0xEB total blocks */ | |
42 | __u32 scsi_id; /* 0xEC - 0xEF scsi ID */ | |
43 | __u32 status; /* 0xF0 - 0xF3 */ | |
44 | #define SPARE_DISK 0x01 /* Spare */ | |
45 | #define CONFIGURED_DISK 0x02 /* Member of some RaidDev */ | |
46 | #define FAILED_DISK 0x04 /* Permanent failure */ | |
47 | #define USABLE_DISK 0x08 /* Fully usable unless FAILED_DISK is set */ | |
48 | ||
49 | #define IMSM_DISK_FILLERS 5 | |
50 | __u32 filler[IMSM_DISK_FILLERS]; /* 0xF4 - 0x107 MPB_DISK_FILLERS for future expansion */ | |
51 | }; | |
52 | ||
53 | /* RAID map configuration infos. */ | |
54 | struct imsm_map { | |
55 | __u32 pba_of_lba0; /* start address of partition */ | |
56 | __u32 blocks_per_member;/* blocks per member */ | |
57 | __u32 num_data_stripes; /* number of data stripes */ | |
58 | __u16 blocks_per_strip; | |
59 | __u8 map_state; /* Normal, Uninitialized, Degraded, Failed */ | |
60 | #define IMSM_T_STATE_NORMAL 0 | |
61 | #define IMSM_T_STATE_UNINITIALIZED 1 | |
62 | #define IMSM_T_STATE_DEGRADED 2 /* FIXME: is this correct? */ | |
63 | #define IMSM_T_STATE_FAILED 3 /* FIXME: is this correct? */ | |
64 | __u8 raid_level; | |
65 | #define IMSM_T_RAID0 0 | |
66 | #define IMSM_T_RAID1 1 | |
67 | #define IMSM_T_RAID5 5 /* since metadata version 1.2.02 ? */ | |
68 | __u8 num_members; /* number of member disks */ | |
69 | __u8 reserved[3]; | |
70 | __u32 filler[7]; /* expansion area */ | |
71 | __u32 disk_ord_tbl[1]; /* disk_ord_tbl[num_members], | |
72 | top byte special */ | |
73 | } __attribute__ ((packed)); | |
74 | ||
75 | struct imsm_vol { | |
76 | __u32 reserved[2]; | |
77 | __u8 migr_state; /* Normal or Migrating */ | |
78 | __u8 migr_type; /* Initializing, Rebuilding, ... */ | |
79 | __u8 dirty; | |
80 | __u8 fill[1]; | |
81 | __u32 filler[5]; | |
82 | struct imsm_map map[1]; | |
83 | /* here comes another one if migr_state */ | |
84 | } __attribute__ ((packed)); | |
85 | ||
86 | struct imsm_dev { | |
87 | __u8 volume[MAX_RAID_SERIAL_LEN]; | |
88 | __u32 size_low; | |
89 | __u32 size_high; | |
90 | __u32 status; /* Persistent RaidDev status */ | |
91 | __u32 reserved_blocks; /* Reserved blocks at beginning of volume */ | |
92 | #define IMSM_DEV_FILLERS 12 | |
93 | __u32 filler[IMSM_DEV_FILLERS]; | |
94 | struct imsm_vol vol; | |
95 | } __attribute__ ((packed)); | |
96 | ||
97 | struct imsm_super { | |
98 | __u8 sig[MAX_SIGNATURE_LENGTH]; /* 0x00 - 0x1F */ | |
99 | __u32 check_sum; /* 0x20 - 0x23 MPB Checksum */ | |
100 | __u32 mpb_size; /* 0x24 - 0x27 Size of MPB */ | |
101 | __u32 family_num; /* 0x28 - 0x2B Checksum from first time this config was written */ | |
102 | __u32 generation_num; /* 0x2C - 0x2F Incremented each time this array's MPB is written */ | |
103 | __u32 reserved[2]; /* 0x30 - 0x37 */ | |
104 | __u8 num_disks; /* 0x38 Number of configured disks */ | |
105 | __u8 num_raid_devs; /* 0x39 Number of configured volumes */ | |
106 | __u8 fill[2]; /* 0x3A - 0x3B */ | |
107 | #define IMSM_FILLERS 39 | |
108 | __u32 filler[IMSM_FILLERS]; /* 0x3C - 0xD7 RAID_MPB_FILLERS */ | |
109 | struct imsm_disk disk[1]; /* 0xD8 diskTbl[numDisks] */ | |
110 | /* here comes imsm_dev[num_raid_devs] */ | |
111 | } __attribute__ ((packed)); | |
112 | ||
113 | #ifndef MDASSEMBLE | |
114 | static char *map_state_str[] = { "normal", "uninitialized", "degraded", "failed" }; | |
115 | #endif | |
116 | ||
87eb16df | 117 | static unsigned int sector_count(__u32 bytes) |
cdddbdbc | 118 | { |
87eb16df DW |
119 | return ((bytes + (512-1)) & (~(512-1))) / 512; |
120 | } | |
cdddbdbc | 121 | |
87eb16df DW |
122 | static unsigned int mpb_sectors(struct imsm_super *mpb) |
123 | { | |
124 | return sector_count(__le32_to_cpu(mpb->mpb_size)); | |
cdddbdbc DW |
125 | } |
126 | ||
0063ecba NB |
127 | static struct superswitch super_imsm_volume; |
128 | ||
cdddbdbc DW |
129 | /* internal representation of IMSM metadata */ |
130 | struct intel_super { | |
131 | union { | |
132 | struct imsm_super *mpb; | |
133 | void *buf; | |
134 | }; | |
c2c087e6 DW |
135 | int updates_pending; /* count of pending updates for mdmon */ |
136 | int creating_imsm; /* flag to indicate container creation */ | |
137 | int creating_dev; /* index of raid device undergoing creation */ | |
cdddbdbc DW |
138 | struct dl { |
139 | struct dl *next; | |
140 | int index; | |
141 | __u8 serial[MAX_RAID_SERIAL_LEN]; | |
142 | int major, minor; | |
143 | char *devname; | |
144 | int fd; | |
145 | } *disks; | |
146 | }; | |
147 | ||
c2c087e6 DW |
148 | struct extent { |
149 | unsigned long long start, size; | |
150 | }; | |
151 | ||
cdddbdbc DW |
152 | static struct supertype *match_metadata_desc_imsm(char *arg) |
153 | { | |
154 | struct supertype *st; | |
155 | ||
156 | if (strcmp(arg, "imsm") != 0 && | |
157 | strcmp(arg, "default") != 0 | |
158 | ) | |
159 | return NULL; | |
160 | ||
161 | st = malloc(sizeof(*st)); | |
ef609477 | 162 | memset(st, 0, sizeof(*st)); |
cdddbdbc DW |
163 | st->ss = &super_imsm; |
164 | st->max_devs = IMSM_MAX_DEVICES; | |
165 | st->minor_version = 0; | |
166 | st->sb = NULL; | |
167 | return st; | |
168 | } | |
169 | ||
8b353278 | 170 | static struct supertype *match_metadata_desc_imsm_volume(char *arg) |
cdddbdbc DW |
171 | { |
172 | struct supertype *st; | |
173 | ||
8b353278 | 174 | if (strcmp(arg, "imsm/volume") != 0 && |
cdddbdbc DW |
175 | strcmp(arg, "raid") != 0 && |
176 | strcmp(arg, "default") != 0 | |
177 | ) | |
178 | return NULL; | |
179 | ||
180 | st = malloc(sizeof(*st)); | |
ef609477 | 181 | memset(st, 0, sizeof(*st)); |
8b353278 | 182 | st->ss = &super_imsm_volume; |
cdddbdbc DW |
183 | st->max_devs = IMSM_MAX_DEVICES; |
184 | st->minor_version = 0; | |
185 | st->sb = NULL; | |
186 | return st; | |
187 | } | |
188 | ||
189 | static __u8 *get_imsm_version(struct imsm_super *mpb) | |
190 | { | |
191 | return &mpb->sig[MPB_SIG_LEN]; | |
192 | } | |
193 | ||
194 | static struct imsm_disk *get_imsm_disk(struct imsm_super *mpb, __u8 index) | |
195 | { | |
196 | if (index > mpb->num_disks - 1) | |
197 | return NULL; | |
198 | return &mpb->disk[index]; | |
199 | } | |
200 | ||
201 | static __u32 gen_imsm_checksum(struct imsm_super *mpb) | |
202 | { | |
203 | __u32 end = mpb->mpb_size / sizeof(end); | |
204 | __u32 *p = (__u32 *) mpb; | |
205 | __u32 sum = 0; | |
206 | ||
207 | while (end--) | |
208 | sum += __le32_to_cpu(*p++); | |
209 | ||
210 | return sum - __le32_to_cpu(mpb->check_sum); | |
211 | } | |
212 | ||
213 | static size_t sizeof_imsm_dev(struct imsm_dev *dev) | |
214 | { | |
215 | size_t size = sizeof(*dev); | |
216 | ||
217 | /* each map has disk_ord_tbl[num_members - 1] additional space */ | |
218 | size += sizeof(__u32) * (dev->vol.map[0].num_members - 1); | |
219 | ||
220 | /* migrating means an additional map */ | |
221 | if (dev->vol.migr_state) { | |
222 | size += sizeof(struct imsm_map); | |
223 | size += sizeof(__u32) * (dev->vol.map[1].num_members - 1); | |
224 | } | |
225 | ||
226 | return size; | |
227 | } | |
228 | ||
229 | static struct imsm_dev *get_imsm_dev(struct imsm_super *mpb, __u8 index) | |
230 | { | |
231 | int offset; | |
232 | int i; | |
233 | void *_mpb = mpb; | |
234 | ||
235 | if (index > mpb->num_raid_devs - 1) | |
236 | return NULL; | |
237 | ||
238 | /* devices start after all disks */ | |
239 | offset = ((void *) &mpb->disk[mpb->num_disks]) - _mpb; | |
240 | ||
241 | for (i = 0; i <= index; i++) | |
242 | if (i == index) | |
243 | return _mpb + offset; | |
244 | else | |
245 | offset += sizeof_imsm_dev(_mpb + offset); | |
246 | ||
247 | return NULL; | |
248 | } | |
249 | ||
250 | static __u32 get_imsm_disk_idx(struct imsm_map *map, int slot) | |
251 | { | |
252 | __u32 *ord_tbl = &map->disk_ord_tbl[slot]; | |
253 | ||
254 | /* top byte is 'special' */ | |
255 | return __le32_to_cpu(*ord_tbl & ~(0xff << 24)); | |
256 | } | |
257 | ||
cdddbdbc DW |
258 | static int get_imsm_raid_level(struct imsm_map *map) |
259 | { | |
260 | if (map->raid_level == 1) { | |
261 | if (map->num_members == 2) | |
262 | return 1; | |
263 | else | |
264 | return 10; | |
265 | } | |
266 | ||
267 | return map->raid_level; | |
268 | } | |
269 | ||
c2c087e6 DW |
270 | static int cmp_extent(const void *av, const void *bv) |
271 | { | |
272 | const struct extent *a = av; | |
273 | const struct extent *b = bv; | |
274 | if (a->start < b->start) | |
275 | return -1; | |
276 | if (a->start > b->start) | |
277 | return 1; | |
278 | return 0; | |
279 | } | |
280 | ||
281 | static struct extent *get_extents(struct intel_super *super, struct dl *dl) | |
282 | { | |
283 | /* find a list of used extents on the given physical device */ | |
284 | struct imsm_super *mpb = super->mpb; | |
285 | struct imsm_disk *disk; | |
286 | struct extent *rv, *e; | |
287 | int i, j; | |
288 | int memberships = 0; | |
289 | ||
290 | disk = get_imsm_disk(mpb, dl->index); | |
291 | if (!disk) | |
292 | return NULL; | |
293 | ||
294 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
295 | struct imsm_dev *dev = get_imsm_dev(mpb, i); | |
296 | struct imsm_map *map = dev->vol.map; | |
297 | ||
298 | for (j = 0; j < map->num_members; j++) { | |
299 | __u32 index = get_imsm_disk_idx(map, j); | |
300 | ||
301 | if (index == dl->index) | |
302 | memberships++; | |
303 | } | |
304 | } | |
305 | rv = malloc(sizeof(struct extent) * (memberships + 1)); | |
306 | if (!rv) | |
307 | return NULL; | |
308 | e = rv; | |
309 | ||
310 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
311 | struct imsm_dev *dev = get_imsm_dev(mpb, i); | |
312 | struct imsm_map *map = dev->vol.map; | |
313 | ||
314 | for (j = 0; j < map->num_members; j++) { | |
315 | __u32 index = get_imsm_disk_idx(map, j); | |
316 | ||
317 | if (index == dl->index) { | |
318 | e->start = __le32_to_cpu(map->pba_of_lba0); | |
319 | e->size = __le32_to_cpu(map->blocks_per_member); | |
320 | e++; | |
321 | } | |
322 | } | |
323 | } | |
324 | qsort(rv, memberships, sizeof(*rv), cmp_extent); | |
325 | ||
326 | e->start = __le32_to_cpu(disk->total_blocks) - | |
327 | (MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS); | |
328 | e->size = 0; | |
329 | return rv; | |
330 | } | |
331 | ||
4f5bc454 | 332 | #ifndef MDASSEMBLE |
cdddbdbc DW |
333 | static void print_imsm_dev(struct imsm_dev *dev, int index) |
334 | { | |
335 | __u64 sz; | |
336 | int slot; | |
337 | struct imsm_map *map = dev->vol.map; | |
338 | ||
339 | printf("\n"); | |
340 | printf("[%s]:\n", dev->volume); | |
341 | printf(" RAID Level : %d\n", get_imsm_raid_level(map)); | |
342 | printf(" Members : %d\n", map->num_members); | |
343 | for (slot = 0; slot < map->num_members; slot++) | |
344 | if (index == get_imsm_disk_idx(map, slot)) | |
345 | break; | |
346 | if (slot < map->num_members) | |
347 | printf(" This Slot : %d\n", slot); | |
348 | else | |
349 | printf(" This Slot : ?\n"); | |
350 | sz = __le32_to_cpu(dev->size_high); | |
351 | sz <<= 32; | |
352 | sz += __le32_to_cpu(dev->size_low); | |
353 | printf(" Array Size : %llu%s\n", (unsigned long long)sz, | |
354 | human_size(sz * 512)); | |
355 | sz = __le32_to_cpu(map->blocks_per_member); | |
356 | printf(" Per Dev Size : %llu%s\n", (unsigned long long)sz, | |
357 | human_size(sz * 512)); | |
358 | printf(" Sector Offset : %u\n", | |
359 | __le32_to_cpu(map->pba_of_lba0)); | |
360 | printf(" Num Stripes : %u\n", | |
361 | __le32_to_cpu(map->num_data_stripes)); | |
362 | printf(" Chunk Size : %u KiB\n", | |
363 | __le16_to_cpu(map->blocks_per_strip) / 2); | |
364 | printf(" Reserved : %d\n", __le32_to_cpu(dev->reserved_blocks)); | |
365 | printf(" Migrate State : %s\n", dev->vol.migr_state ? "migrating" : "idle"); | |
366 | printf(" Dirty State : %s\n", dev->vol.dirty ? "dirty" : "clean"); | |
367 | printf(" Map State : %s\n", map_state_str[map->map_state]); | |
368 | } | |
369 | ||
370 | static void print_imsm_disk(struct imsm_super *mpb, int index) | |
371 | { | |
372 | struct imsm_disk *disk = get_imsm_disk(mpb, index); | |
373 | char str[MAX_RAID_SERIAL_LEN]; | |
374 | __u32 s; | |
375 | __u64 sz; | |
376 | ||
377 | printf("\n"); | |
378 | snprintf(str, MAX_RAID_SERIAL_LEN, "%s", disk->serial); | |
379 | printf(" Disk%02d Serial : %s\n", index, str); | |
380 | s = __le32_to_cpu(disk->status); | |
381 | printf(" State :%s%s%s%s\n", s&SPARE_DISK ? " spare" : "", | |
382 | s&CONFIGURED_DISK ? " active" : "", | |
383 | s&FAILED_DISK ? " failed" : "", | |
384 | s&USABLE_DISK ? " usable" : ""); | |
385 | printf(" Id : %08x\n", __le32_to_cpu(disk->scsi_id)); | |
c2c087e6 DW |
386 | sz = __le32_to_cpu(disk->total_blocks) - |
387 | (MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS * mpb->num_raid_devs); | |
cdddbdbc DW |
388 | printf(" Usable Size : %llu%s\n", (unsigned long long)sz, |
389 | human_size(sz * 512)); | |
390 | } | |
391 | ||
392 | static void examine_super_imsm(struct supertype *st, char *homehost) | |
393 | { | |
394 | struct intel_super *super = st->sb; | |
395 | struct imsm_super *mpb = super->mpb; | |
396 | char str[MAX_SIGNATURE_LENGTH]; | |
397 | int i; | |
398 | __u32 sum; | |
399 | ||
400 | snprintf(str, MPB_SIG_LEN, "%s", mpb->sig); | |
401 | printf(" Magic : %s\n", str); | |
402 | snprintf(str, strlen(MPB_VERSION_RAID0), "%s", get_imsm_version(mpb)); | |
403 | printf(" Version : %s\n", get_imsm_version(mpb)); | |
404 | printf(" Family : %08x\n", __le32_to_cpu(mpb->family_num)); | |
405 | printf(" Generation : %08x\n", __le32_to_cpu(mpb->generation_num)); | |
406 | sum = __le32_to_cpu(mpb->check_sum); | |
407 | printf(" Checksum : %08x %s\n", sum, | |
408 | gen_imsm_checksum(mpb) == sum ? "correct" : "incorrect"); | |
87eb16df | 409 | printf(" MPB Sectors : %d\n", mpb_sectors(mpb)); |
cdddbdbc DW |
410 | printf(" Disks : %d\n", mpb->num_disks); |
411 | printf(" RAID Devices : %d\n", mpb->num_raid_devs); | |
412 | print_imsm_disk(mpb, super->disks->index); | |
413 | for (i = 0; i < mpb->num_raid_devs; i++) | |
414 | print_imsm_dev(get_imsm_dev(mpb, i), super->disks->index); | |
415 | for (i = 0; i < mpb->num_disks; i++) { | |
416 | if (i == super->disks->index) | |
417 | continue; | |
418 | print_imsm_disk(mpb, i); | |
419 | } | |
420 | } | |
421 | ||
422 | static void brief_examine_super_imsm(struct supertype *st) | |
423 | { | |
424 | struct intel_super *super = st->sb; | |
425 | struct imsm_super *mpb = super->mpb; | |
426 | ||
427 | printf("ARRAY /dev/imsm family=%08x metadata=external:imsm\n", | |
428 | __le32_to_cpu(mpb->family_num)); | |
429 | } | |
430 | ||
431 | static void detail_super_imsm(struct supertype *st, char *homehost) | |
432 | { | |
433 | printf("%s\n", __FUNCTION__); | |
434 | } | |
435 | ||
436 | static void brief_detail_super_imsm(struct supertype *st) | |
437 | { | |
438 | printf("%s\n", __FUNCTION__); | |
439 | } | |
440 | #endif | |
441 | ||
442 | static int match_home_imsm(struct supertype *st, char *homehost) | |
443 | { | |
444 | printf("%s\n", __FUNCTION__); | |
445 | ||
446 | return 0; | |
447 | } | |
448 | ||
449 | static void uuid_from_super_imsm(struct supertype *st, int uuid[4]) | |
450 | { | |
451 | printf("%s\n", __FUNCTION__); | |
452 | } | |
453 | ||
4f5bc454 DW |
454 | static void |
455 | get_imsm_numerical_version(struct imsm_super *mpb, int *m, int *p) | |
cdddbdbc | 456 | { |
cdddbdbc DW |
457 | __u8 *v = get_imsm_version(mpb); |
458 | __u8 *end = mpb->sig + MAX_SIGNATURE_LENGTH; | |
459 | char major[] = { 0, 0, 0 }; | |
460 | char minor[] = { 0 ,0, 0 }; | |
461 | char patch[] = { 0, 0, 0 }; | |
462 | char *ver_parse[] = { major, minor, patch }; | |
463 | int i, j; | |
464 | ||
465 | i = j = 0; | |
466 | while (*v != '\0' && v < end) { | |
467 | if (*v != '.' && j < 2) | |
468 | ver_parse[i][j++] = *v; | |
469 | else { | |
470 | i++; | |
471 | j = 0; | |
472 | } | |
473 | v++; | |
474 | } | |
475 | ||
4f5bc454 DW |
476 | *m = strtol(minor, NULL, 0); |
477 | *p = strtol(patch, NULL, 0); | |
478 | } | |
479 | ||
c2c087e6 DW |
480 | static int imsm_level_to_layout(int level) |
481 | { | |
482 | switch (level) { | |
483 | case 0: | |
484 | case 1: | |
485 | return 0; | |
486 | case 5: | |
487 | case 6: | |
488 | return ALGORITHM_LEFT_SYMMETRIC; | |
489 | case 10: | |
490 | return 0x102; //FIXME is this correct? | |
491 | } | |
492 | return -1; | |
493 | } | |
494 | ||
4f5bc454 DW |
495 | static void getinfo_super_imsm(struct supertype *st, struct mdinfo *info) |
496 | { | |
497 | struct intel_super *super = st->sb; | |
498 | struct imsm_super *mpb = super->mpb; | |
499 | struct imsm_disk *disk; | |
500 | __u32 s; | |
4f5bc454 | 501 | |
cdddbdbc | 502 | info->array.major_version = 2000; |
4f5bc454 DW |
503 | get_imsm_numerical_version(mpb, &info->array.minor_version, |
504 | &info->array.patch_version); | |
cdddbdbc DW |
505 | info->array.raid_disks = mpb->num_disks; |
506 | info->array.level = LEVEL_CONTAINER; | |
507 | info->array.layout = 0; | |
508 | info->array.md_minor = -1; | |
c2c087e6 | 509 | info->array.ctime = 0; /* N/A for imsm */ |
cdddbdbc DW |
510 | info->array.utime = 0; |
511 | info->array.chunk_size = 0; | |
512 | ||
513 | info->disk.major = 0; | |
514 | info->disk.minor = 0; | |
cdddbdbc | 515 | info->disk.raid_disk = -1; |
c2c087e6 DW |
516 | info->reshape_active = 0; |
517 | strcpy(info->text_version, "imsm"); | |
518 | info->disk.number = -1; | |
519 | info->disk.state = 0; | |
520 | ||
4a04ec6c DW |
521 | if (super->disks) { |
522 | info->disk.number = super->disks->index; | |
523 | info->disk.raid_disk = super->disks->index; | |
524 | disk = get_imsm_disk(mpb, super->disks->index); | |
525 | s = __le32_to_cpu(disk->status); | |
526 | info->disk.state = s & CONFIGURED_DISK ? (1 << MD_DISK_ACTIVE) : 0; | |
527 | info->disk.state |= s & FAILED_DISK ? (1 << MD_DISK_FAULTY) : 0; | |
528 | info->disk.state |= s & USABLE_DISK ? (1 << MD_DISK_SYNC) : 0; | |
cdddbdbc | 529 | } |
cdddbdbc DW |
530 | } |
531 | ||
8b353278 | 532 | static void getinfo_super_imsm_volume(struct supertype *st, struct mdinfo *info) |
cdddbdbc | 533 | { |
c2c087e6 DW |
534 | struct intel_super *super = st->sb; |
535 | struct imsm_super *mpb = super->mpb; | |
536 | struct imsm_dev *dev = get_imsm_dev(mpb, info->container_member); | |
537 | struct imsm_map *map = &dev->vol.map[0]; | |
538 | ||
539 | info->array.major_version = 2000; | |
540 | get_imsm_numerical_version(mpb, &info->array.minor_version, | |
541 | &info->array.patch_version); | |
542 | info->array.raid_disks = map->num_members; | |
543 | info->array.level = get_imsm_raid_level(map); | |
544 | info->array.layout = imsm_level_to_layout(info->array.level); | |
545 | info->array.md_minor = -1; | |
546 | info->array.ctime = 0; | |
547 | info->array.utime = 0; | |
548 | info->array.chunk_size = __le16_to_cpu(map->blocks_per_strip * 512); | |
549 | ||
550 | info->data_offset = __le32_to_cpu(map->pba_of_lba0); | |
551 | info->component_size = __le32_to_cpu(map->blocks_per_member); | |
552 | ||
553 | info->disk.major = 0; | |
554 | info->disk.minor = 0; | |
159c3a1a NB |
555 | |
556 | sprintf(info->text_version, "/%s/%d", | |
557 | devnum2devname(st->container_dev), | |
c2c087e6 | 558 | info->container_member); |
cdddbdbc DW |
559 | } |
560 | ||
561 | static int update_super_imsm(struct supertype *st, struct mdinfo *info, | |
562 | char *update, char *devname, int verbose, | |
563 | int uuid_set, char *homehost) | |
564 | { | |
f352c545 DW |
565 | /* FIXME */ |
566 | ||
567 | /* For 'assemble' and 'force' we need to return non-zero if any | |
568 | * change was made. For others, the return value is ignored. | |
569 | * Update options are: | |
570 | * force-one : This device looks a bit old but needs to be included, | |
571 | * update age info appropriately. | |
572 | * assemble: clear any 'faulty' flag to allow this device to | |
573 | * be assembled. | |
574 | * force-array: Array is degraded but being forced, mark it clean | |
575 | * if that will be needed to assemble it. | |
576 | * | |
577 | * newdev: not used ???? | |
578 | * grow: Array has gained a new device - this is currently for | |
579 | * linear only | |
580 | * resync: mark as dirty so a resync will happen. | |
581 | * name: update the name - preserving the homehost | |
582 | * | |
583 | * Following are not relevant for this imsm: | |
584 | * sparc2.2 : update from old dodgey metadata | |
585 | * super-minor: change the preferred_minor number | |
586 | * summaries: update redundant counters. | |
587 | * uuid: Change the uuid of the array to match watch is given | |
588 | * homehost: update the recorded homehost | |
589 | * _reshape_progress: record new reshape_progress position. | |
590 | */ | |
591 | int rv = 0; | |
592 | //struct intel_super *super = st->sb; | |
593 | //struct imsm_super *mpb = super->mpb; | |
594 | ||
595 | if (strcmp(update, "grow") == 0) { | |
596 | } | |
597 | if (strcmp(update, "resync") == 0) { | |
598 | /* dev->vol.dirty = 1; */ | |
599 | } | |
600 | ||
601 | /* IMSM has no concept of UUID or homehost */ | |
602 | ||
603 | return rv; | |
cdddbdbc DW |
604 | } |
605 | ||
c2c087e6 | 606 | static size_t disks_to_mpb_size(int disks) |
cdddbdbc | 607 | { |
c2c087e6 | 608 | size_t size; |
cdddbdbc | 609 | |
c2c087e6 DW |
610 | size = sizeof(struct imsm_super); |
611 | size += (disks - 1) * sizeof(struct imsm_disk); | |
612 | size += 2 * sizeof(struct imsm_dev); | |
613 | /* up to 2 maps per raid device (-2 for imsm_maps in imsm_dev */ | |
614 | size += (4 - 2) * sizeof(struct imsm_map); | |
615 | /* 4 possible disk_ord_tbl's */ | |
616 | size += 4 * (disks - 1) * sizeof(__u32); | |
617 | ||
618 | return size; | |
619 | } | |
620 | ||
621 | static __u64 avail_size_imsm(struct supertype *st, __u64 devsize) | |
622 | { | |
623 | if (devsize < (MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS)) | |
624 | return 0; | |
625 | ||
626 | return devsize - (MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS); | |
cdddbdbc DW |
627 | } |
628 | ||
629 | static int compare_super_imsm(struct supertype *st, struct supertype *tst) | |
630 | { | |
631 | /* | |
632 | * return: | |
633 | * 0 same, or first was empty, and second was copied | |
634 | * 1 second had wrong number | |
635 | * 2 wrong uuid | |
636 | * 3 wrong other info | |
637 | */ | |
638 | struct intel_super *first = st->sb; | |
639 | struct intel_super *sec = tst->sb; | |
640 | ||
641 | if (!first) { | |
642 | st->sb = tst->sb; | |
643 | tst->sb = NULL; | |
644 | return 0; | |
645 | } | |
646 | ||
647 | if (memcmp(first->mpb->sig, sec->mpb->sig, MAX_SIGNATURE_LENGTH) != 0) | |
648 | return 3; | |
649 | if (first->mpb->family_num != sec->mpb->family_num) | |
650 | return 3; | |
651 | if (first->mpb->mpb_size != sec->mpb->mpb_size) | |
652 | return 3; | |
653 | if (first->mpb->check_sum != sec->mpb->check_sum) | |
654 | return 3; | |
655 | ||
656 | return 0; | |
657 | } | |
658 | ||
659 | extern int scsi_get_serial(int fd, void *buf, size_t buf_len); | |
660 | ||
661 | static int imsm_read_serial(int fd, char *devname, | |
662 | __u8 serial[MAX_RAID_SERIAL_LEN]) | |
663 | { | |
664 | unsigned char scsi_serial[255]; | |
cdddbdbc | 665 | int sg_fd; |
cdddbdbc DW |
666 | int rv; |
667 | int rsp_len; | |
668 | int i, cnt; | |
669 | ||
670 | memset(scsi_serial, 0, sizeof(scsi_serial)); | |
cdddbdbc | 671 | |
90c8b707 | 672 | sg_fd = sysfs_disk_to_sg(fd); |
cdddbdbc DW |
673 | if (sg_fd < 0) { |
674 | if (devname) | |
675 | fprintf(stderr, | |
90c8b707 DW |
676 | Name ": Failed to open sg interface for %s: %s\n", |
677 | devname, strerror(errno)); | |
cdddbdbc DW |
678 | return 1; |
679 | } | |
680 | ||
681 | rv = scsi_get_serial(sg_fd, scsi_serial, sizeof(scsi_serial)); | |
682 | close(sg_fd); | |
683 | ||
684 | if (rv != 0) { | |
685 | if (devname) | |
686 | fprintf(stderr, | |
687 | Name ": Failed to retrieve serial for %s\n", | |
688 | devname); | |
689 | return rv; | |
690 | } | |
691 | ||
692 | rsp_len = scsi_serial[3]; | |
693 | for (i = 0, cnt = 0; i < rsp_len; i++) { | |
694 | if (!isspace(scsi_serial[4 + i])) | |
695 | serial[cnt++] = scsi_serial[4 + i]; | |
696 | if (cnt == MAX_RAID_SERIAL_LEN) | |
697 | break; | |
698 | } | |
699 | ||
700 | serial[MAX_RAID_SERIAL_LEN - 1] = '\0'; | |
701 | ||
702 | return 0; | |
703 | } | |
704 | ||
705 | static int | |
706 | load_imsm_disk(int fd, struct intel_super *super, char *devname, int keep_fd) | |
707 | { | |
708 | struct imsm_super *mpb = super->mpb; | |
709 | struct dl *dl; | |
710 | struct stat stb; | |
711 | struct imsm_disk *disk; | |
712 | int rv; | |
713 | int i; | |
714 | ||
715 | dl = malloc(sizeof(*dl)); | |
716 | if (!dl) { | |
717 | if (devname) | |
718 | fprintf(stderr, | |
719 | Name ": failed to allocate disk buffer for %s\n", | |
720 | devname); | |
721 | return 2; | |
722 | } | |
723 | memset(dl, 0, sizeof(*dl)); | |
724 | ||
725 | fstat(fd, &stb); | |
726 | dl->major = major(stb.st_rdev); | |
727 | dl->minor = minor(stb.st_rdev); | |
728 | dl->next = super->disks; | |
729 | dl->fd = keep_fd ? fd : -1; | |
730 | dl->devname = devname ? strdup(devname) : NULL; | |
731 | dl->index = -1; | |
732 | super->disks = dl; | |
733 | rv = imsm_read_serial(fd, devname, dl->serial); | |
734 | ||
735 | if (rv != 0) | |
736 | return 2; | |
737 | ||
738 | /* look up this disk's index */ | |
739 | for (i = 0; i < mpb->num_disks; i++) { | |
740 | disk = get_imsm_disk(mpb, i); | |
741 | ||
742 | if (memcmp(disk->serial, dl->serial, MAX_RAID_SERIAL_LEN) == 0) | |
743 | break; | |
744 | } | |
745 | ||
746 | if (i > mpb->num_disks) | |
747 | return 2; | |
748 | ||
749 | dl->index = i; | |
750 | ||
751 | return 0; | |
752 | } | |
753 | ||
754 | /* load_imsm_mpb - read matrix metadata | |
755 | * allocates super->mpb to be freed by free_super | |
756 | */ | |
757 | static int load_imsm_mpb(int fd, struct intel_super *super, char *devname) | |
758 | { | |
759 | unsigned long long dsize; | |
760 | size_t len, mpb_size; | |
761 | unsigned long long sectors; | |
762 | struct stat; | |
763 | struct imsm_super anchor; | |
764 | __u32 check_sum; | |
765 | ||
766 | memset(super, 0, sizeof(*super)); | |
767 | get_dev_size(fd, NULL, &dsize); | |
768 | ||
769 | if (lseek64(fd, dsize - (512 * 2), SEEK_SET) < 0) { | |
770 | if (devname) | |
771 | fprintf(stderr, | |
772 | Name ": Cannot seek to anchor block on %s: %s\n", | |
773 | devname, strerror(errno)); | |
774 | return 1; | |
775 | } | |
776 | ||
777 | len = sizeof(anchor); | |
778 | if (read(fd, &anchor, len) != len) { | |
779 | if (devname) | |
780 | fprintf(stderr, | |
781 | Name ": Cannot read anchor block on %s: %s\n", | |
782 | devname, strerror(errno)); | |
783 | return 1; | |
784 | } | |
785 | ||
786 | if (strncmp((char *) anchor.sig, MPB_SIGNATURE, MPB_SIG_LEN) != 0) { | |
787 | if (devname) | |
788 | fprintf(stderr, | |
789 | Name ": no IMSM anchor on %s\n", devname); | |
790 | return 2; | |
791 | } | |
792 | ||
793 | mpb_size = __le32_to_cpu(anchor.mpb_size); | |
794 | super->mpb = malloc(mpb_size < 512 ? 512 : mpb_size); | |
795 | if (!super->mpb) { | |
796 | if (devname) | |
797 | fprintf(stderr, | |
798 | Name ": unable to allocate %zu byte mpb buffer\n", | |
799 | mpb_size); | |
800 | return 2; | |
801 | } | |
802 | memcpy(super->buf, &anchor, sizeof(anchor)); | |
803 | ||
804 | /* read the rest of the first block */ | |
805 | len = 512 - sizeof(anchor); | |
806 | if (read(fd, super->buf + sizeof(anchor), len) != len) { | |
807 | if (devname) | |
808 | fprintf(stderr, | |
809 | Name ": Cannot read anchor remainder on %s: %s\n", | |
810 | devname, strerror(errno)); | |
811 | return 2; | |
812 | } | |
813 | ||
814 | sectors = mpb_sectors(&anchor) - 1; | |
815 | if (!sectors) | |
816 | return load_imsm_disk(fd, super, devname, 0); | |
817 | ||
818 | /* read the extended mpb */ | |
819 | if (lseek64(fd, dsize - (512 * (2 + sectors)), SEEK_SET) < 0) { | |
820 | if (devname) | |
821 | fprintf(stderr, | |
822 | Name ": Cannot seek to extended mpb on %s: %s\n", | |
823 | devname, strerror(errno)); | |
824 | return 1; | |
825 | } | |
826 | ||
827 | len = mpb_size - 512; | |
828 | if (read(fd, super->buf + 512, len) != len) { | |
829 | if (devname) | |
830 | fprintf(stderr, | |
831 | Name ": Cannot read extended mpb on %s: %s\n", | |
832 | devname, strerror(errno)); | |
833 | return 2; | |
834 | } | |
835 | ||
836 | check_sum = gen_imsm_checksum(super->mpb); | |
837 | if (check_sum != __le32_to_cpu(super->mpb->check_sum)) { | |
838 | if (devname) | |
839 | fprintf(stderr, | |
840 | Name ": IMSM checksum %x != %x on %s\n", | |
841 | check_sum, __le32_to_cpu(super->mpb->check_sum), | |
842 | devname); | |
843 | return 2; | |
844 | } | |
845 | ||
846 | return load_imsm_disk(fd, super, devname, 0); | |
847 | } | |
848 | ||
849 | struct superswitch super_imsm_container; | |
850 | ||
851 | static void free_imsm_disks(struct intel_super *super) | |
852 | { | |
853 | while (super->disks) { | |
854 | struct dl *d = super->disks; | |
855 | ||
856 | super->disks = d->next; | |
857 | if (d->fd >= 0) | |
858 | close(d->fd); | |
859 | if (d->devname) | |
860 | free(d->devname); | |
861 | free(d); | |
862 | } | |
863 | } | |
864 | ||
865 | static void free_imsm(struct intel_super *super) | |
866 | { | |
867 | if (super->mpb) | |
868 | free(super->mpb); | |
869 | free_imsm_disks(super); | |
870 | free(super); | |
871 | } | |
872 | ||
873 | ||
874 | static void free_super_imsm(struct supertype *st) | |
875 | { | |
876 | struct intel_super *super = st->sb; | |
877 | ||
878 | if (!super) | |
879 | return; | |
880 | ||
881 | free_imsm(super); | |
882 | st->sb = NULL; | |
883 | } | |
884 | ||
c2c087e6 DW |
885 | static struct intel_super *alloc_super(int creating_imsm) |
886 | { | |
887 | struct intel_super *super = malloc(sizeof(*super)); | |
888 | ||
889 | if (super) { | |
890 | memset(super, 0, sizeof(*super)); | |
891 | super->creating_imsm = creating_imsm; | |
892 | super->creating_dev = -1; | |
893 | } | |
894 | ||
895 | return super; | |
896 | } | |
897 | ||
cdddbdbc DW |
898 | #ifndef MDASSEMBLE |
899 | static int load_super_imsm_all(struct supertype *st, int fd, void **sbp, | |
900 | char *devname, int keep_fd) | |
901 | { | |
902 | struct mdinfo *sra; | |
903 | struct intel_super *super; | |
904 | struct mdinfo *sd, *best = NULL; | |
905 | __u32 bestgen = 0; | |
906 | __u32 gen; | |
907 | char nm[20]; | |
908 | int dfd; | |
909 | int rv; | |
910 | ||
911 | /* check if this disk is a member of an active array */ | |
912 | sra = sysfs_read(fd, 0, GET_LEVEL|GET_VERSION|GET_DEVS|GET_STATE); | |
913 | if (!sra) | |
914 | return 1; | |
915 | ||
916 | if (sra->array.major_version != -1 || | |
917 | sra->array.minor_version != -2 || | |
918 | strcmp(sra->text_version, "imsm") != 0) | |
919 | return 1; | |
920 | ||
c2c087e6 | 921 | super = alloc_super(0); |
cdddbdbc DW |
922 | if (!super) |
923 | return 1; | |
924 | ||
925 | /* find the most up to date disk in this array */ | |
926 | for (sd = sra->devs; sd; sd = sd->next) { | |
927 | sprintf(nm, "%d:%d", sd->disk.major, sd->disk.minor); | |
928 | dfd = dev_open(nm, keep_fd ? O_RDWR : O_RDONLY); | |
929 | if (!dfd) { | |
930 | free_imsm(super); | |
931 | return 2; | |
932 | } | |
933 | rv = load_imsm_mpb(dfd, super, NULL); | |
934 | if (!keep_fd) | |
935 | close(dfd); | |
936 | if (rv == 0) { | |
937 | gen = __le32_to_cpu(super->mpb->generation_num); | |
938 | if (!best || gen > bestgen) { | |
939 | bestgen = gen; | |
940 | best = sd; | |
941 | } | |
942 | } else { | |
943 | free_imsm(super); | |
944 | return 2; | |
945 | } | |
946 | } | |
947 | ||
948 | if (!best) { | |
949 | free_imsm(super); | |
950 | return 1; | |
951 | } | |
952 | ||
953 | /* load the most up to date anchor */ | |
954 | sprintf(nm, "%d:%d", best->disk.major, best->disk.minor); | |
955 | dfd = dev_open(nm, O_RDONLY); | |
956 | if (!dfd) { | |
957 | free_imsm(super); | |
958 | return 1; | |
959 | } | |
960 | rv = load_imsm_mpb(dfd, super, NULL); | |
961 | close(dfd); | |
962 | if (rv != 0) { | |
963 | free_imsm(super); | |
964 | return 2; | |
965 | } | |
966 | ||
967 | /* reset the disk list */ | |
968 | free_imsm_disks(super); | |
969 | ||
970 | /* populate disk list */ | |
971 | for (sd = sra->devs ; sd ; sd = sd->next) { | |
972 | sprintf(nm, "%d:%d", sd->disk.major, sd->disk.minor); | |
973 | dfd = dev_open(nm, keep_fd? O_RDWR : O_RDONLY); | |
974 | if (!dfd) { | |
975 | free_imsm(super); | |
976 | return 2; | |
977 | } | |
978 | load_imsm_disk(dfd, super, NULL, keep_fd); | |
979 | if (!keep_fd) | |
980 | close(dfd); | |
981 | } | |
982 | ||
f7e7067b NB |
983 | if (st->subarray[0]) { |
984 | /* FIXME */ | |
985 | } | |
986 | ||
cdddbdbc DW |
987 | *sbp = super; |
988 | if (st->ss == NULL) { | |
989 | st->ss = &super_imsm_container; | |
990 | st->minor_version = 0; | |
991 | st->max_devs = IMSM_MAX_DEVICES; | |
f4d11639 | 992 | st->container_dev = fd2devnum(fd); |
cdddbdbc DW |
993 | } |
994 | ||
995 | return 0; | |
996 | } | |
997 | #endif | |
998 | ||
999 | static int load_super_imsm(struct supertype *st, int fd, char *devname) | |
1000 | { | |
1001 | struct intel_super *super; | |
1002 | int rv; | |
1003 | ||
1004 | #ifndef MDASSEMBLE | |
3dbccbcf | 1005 | if (load_super_imsm_all(st, fd, &st->sb, devname, 1) == 0) |
cdddbdbc DW |
1006 | return 0; |
1007 | #endif | |
f7e7067b NB |
1008 | if (st->subarray[0]) |
1009 | return 1; /* FIXME */ | |
cdddbdbc | 1010 | |
c2c087e6 | 1011 | super = alloc_super(0); |
cdddbdbc DW |
1012 | if (!super) { |
1013 | fprintf(stderr, | |
1014 | Name ": malloc of %zu failed.\n", | |
1015 | sizeof(*super)); | |
1016 | return 1; | |
1017 | } | |
1018 | ||
1019 | rv = load_imsm_mpb(fd, super, devname); | |
1020 | ||
1021 | if (rv) { | |
1022 | if (devname) | |
1023 | fprintf(stderr, | |
1024 | Name ": Failed to load all information " | |
1025 | "sections on %s\n", devname); | |
1026 | free_imsm(super); | |
1027 | return rv; | |
1028 | } | |
1029 | ||
1030 | st->sb = super; | |
1031 | if (st->ss == NULL) { | |
1032 | st->ss = &super_imsm; | |
1033 | st->minor_version = 0; | |
1034 | st->max_devs = IMSM_MAX_DEVICES; | |
1035 | } | |
1036 | ||
1037 | return 0; | |
1038 | } | |
1039 | ||
1040 | static int init_zero_imsm(struct supertype *st, mdu_array_info_t *info, | |
1041 | unsigned long long size, char *name, | |
1042 | char *homehost, int *uuid) | |
1043 | { | |
551c80c1 | 1044 | st->sb = NULL; |
cdddbdbc DW |
1045 | return 0; |
1046 | } | |
1047 | ||
1048 | static int init_super_imsm(struct supertype *st, mdu_array_info_t *info, | |
1049 | unsigned long long size, char *name, | |
1050 | char *homehost, int *uuid) | |
1051 | { | |
c2c087e6 DW |
1052 | /* This is primarily called by Create when creating a new array. |
1053 | * We will then get add_to_super called for each component, and then | |
1054 | * write_init_super called to write it out to each device. | |
1055 | * For IMSM, Create can create on fresh devices or on a pre-existing | |
1056 | * array. | |
1057 | * To create on a pre-existing array a different method will be called. | |
1058 | * This one is just for fresh drives. | |
1059 | */ | |
1060 | struct intel_super *super; | |
1061 | struct imsm_super *mpb; | |
1062 | size_t mpb_size; | |
cdddbdbc | 1063 | |
c2c087e6 DW |
1064 | super = alloc_super(1); |
1065 | if (!super) | |
1066 | return 0; | |
1067 | mpb_size = disks_to_mpb_size(info->nr_disks); | |
1068 | mpb = malloc(mpb_size); | |
1069 | if (!mpb) { | |
1070 | free(super); | |
1071 | return 0; | |
1072 | } | |
1073 | memset(mpb, 0, mpb_size); | |
1074 | ||
1075 | memcpy(mpb->sig, MPB_SIGNATURE, strlen(MPB_SIGNATURE)); | |
1076 | memcpy(mpb->sig + strlen(MPB_SIGNATURE), MPB_VERSION_RAID5, | |
1077 | strlen(MPB_VERSION_RAID5)); | |
1078 | mpb->mpb_size = mpb_size; | |
1079 | ||
1080 | super->mpb = mpb; | |
1081 | st->sb = super; | |
1082 | return 1; | |
cdddbdbc DW |
1083 | } |
1084 | ||
8b353278 DW |
1085 | static int init_super_imsm_volume(struct supertype *st, mdu_array_info_t *info, |
1086 | unsigned long long size, char *name, | |
1087 | char *homehost, int *uuid) | |
cdddbdbc | 1088 | { |
c2c087e6 DW |
1089 | /* We are creating a volume inside a pre-existing container. |
1090 | * so st->sb is already set. | |
1091 | */ | |
1092 | struct intel_super *super = st->sb; | |
1093 | struct imsm_super *mpb = super->mpb; | |
1094 | struct imsm_dev *dev; | |
1095 | struct imsm_vol *vol; | |
1096 | struct imsm_map *map; | |
1097 | int idx = mpb->num_raid_devs; | |
1098 | int i; | |
1099 | unsigned long long array_blocks; | |
1100 | unsigned long long sz; | |
1101 | __u32 offset = 0; | |
cdddbdbc | 1102 | |
c2c087e6 DW |
1103 | if (mpb->num_raid_devs >= 2) { |
1104 | fprintf(stderr, Name": This imsm-container already has the " | |
1105 | "maximum of 2 volumes\n"); | |
1106 | return 0; | |
1107 | } | |
1108 | ||
1109 | super->creating_dev = idx; | |
1110 | mpb->num_raid_devs++; | |
1111 | dev = get_imsm_dev(mpb, idx); | |
1112 | strncpy((char *) dev->volume, name, MAX_RAID_SERIAL_LEN); | |
1113 | array_blocks = calc_array_size(info->level, info->raid_disks, | |
1114 | info->layout, info->chunk_size, | |
1115 | info->size*2); | |
1116 | dev->size_low = __cpu_to_le32((__u32) array_blocks); | |
1117 | dev->size_high = __cpu_to_le32((__u32) (array_blocks >> 32)); | |
1118 | dev->status = __cpu_to_le32(0); | |
1119 | dev->reserved_blocks = __cpu_to_le32(0); | |
1120 | vol = &dev->vol; | |
1121 | vol->migr_state = 0; | |
1122 | vol->migr_type = 0; | |
1123 | vol->dirty = 0; | |
1124 | for (i = 0; i < idx; i++) { | |
1125 | struct imsm_dev *prev = get_imsm_dev(mpb, i); | |
1126 | struct imsm_map *pmap = &prev->vol.map[0]; | |
1127 | ||
1128 | offset += __le32_to_cpu(pmap->blocks_per_member); | |
1129 | offset += IMSM_RESERVED_SECTORS; | |
1130 | } | |
1131 | map = &vol->map[0]; | |
1132 | map->pba_of_lba0 = __cpu_to_le32(offset); | |
1133 | sz = info->size * 2; | |
1134 | map->blocks_per_member = __cpu_to_le32(sz); | |
1135 | map->blocks_per_strip = __cpu_to_le16(info->chunk_size >> 9); | |
1136 | map->num_data_stripes = __cpu_to_le32(sz / (info->chunk_size >> 9)); | |
1137 | map->map_state = info->level ? IMSM_T_STATE_UNINITIALIZED : | |
1138 | IMSM_T_STATE_NORMAL; | |
1139 | if (info->level == 10) | |
1140 | map->raid_level = 1; | |
1141 | else | |
1142 | map->raid_level = info->level; | |
1143 | map->num_members = info->raid_disks; | |
1144 | for (i = 0; i < map->num_members; i++) { | |
1145 | /* initialized in add_to_super */ | |
1146 | map->disk_ord_tbl[i] = __cpu_to_le32(0); | |
1147 | } | |
1148 | ||
1149 | return 1; | |
cdddbdbc DW |
1150 | } |
1151 | ||
c2c087e6 | 1152 | static void add_to_super_imsm(struct supertype *st, mdu_disk_info_t *dk, |
cdddbdbc DW |
1153 | int fd, char *devname) |
1154 | { | |
c2c087e6 DW |
1155 | struct intel_super *super = st->sb; |
1156 | struct imsm_super *mpb = super->mpb; | |
1157 | struct imsm_disk *disk; | |
1158 | struct dl *dd; | |
1159 | unsigned long long size; | |
1160 | __u32 status, id; | |
1161 | int rv; | |
1162 | struct stat stb; | |
1163 | ||
1164 | fstat(fd, &stb); | |
1165 | dd = malloc(sizeof(*dd)); | |
1166 | if (!dd) { | |
1167 | fprintf(stderr, | |
1168 | Name ": malloc failed %s:%d.\n", __func__, __LINE__); | |
1169 | abort(); | |
1170 | } | |
1171 | memset(dd, 0, sizeof(*dd)); | |
1172 | dd->major = major(stb.st_rdev); | |
1173 | dd->minor = minor(stb.st_rdev); | |
1174 | dd->index = dk->number; | |
1175 | dd->devname = devname ? strdup(devname) : NULL; | |
1176 | dd->next = super->disks; | |
1177 | dd->fd = fd; | |
1178 | rv = imsm_read_serial(fd, devname, dd->serial); | |
1179 | if (rv) { | |
1180 | fprintf(stderr, | |
1181 | Name ": failed to retrieve scsi serial " | |
1182 | "using \'%s\' instead\n", devname); | |
1183 | strcpy((char *) dd->serial, devname); | |
1184 | } | |
1185 | ||
1186 | if (mpb->num_disks <= dk->number) | |
1187 | mpb->num_disks = dk->number + 1; | |
1188 | ||
1189 | disk = get_imsm_disk(mpb, dk->number); | |
1190 | get_dev_size(fd, NULL, &size); | |
1191 | size /= 512; | |
1192 | status = USABLE_DISK | SPARE_DISK; | |
1193 | strcpy((char *) disk->serial, (char *) dd->serial); | |
1194 | disk->total_blocks = __cpu_to_le32(size); | |
1195 | disk->status = __cpu_to_le32(status); | |
1196 | if (sysfs_disk_to_scsi_id(fd, &id) == 0) | |
1197 | disk->scsi_id = __cpu_to_le32(id); | |
1198 | else | |
1199 | disk->scsi_id = __cpu_to_le32(0); | |
1200 | ||
1201 | /* update the family number if we are creating a container */ | |
1202 | if (super->creating_imsm) | |
1203 | mpb->family_num = __cpu_to_le32(gen_imsm_checksum(mpb)); | |
1204 | ||
1205 | super->disks = dd; | |
cdddbdbc DW |
1206 | } |
1207 | ||
c2c087e6 | 1208 | static void add_to_super_imsm_volume(struct supertype *st, mdu_disk_info_t *dk, |
8b353278 | 1209 | int fd, char *devname) |
cdddbdbc | 1210 | { |
c2c087e6 DW |
1211 | struct intel_super *super = st->sb; |
1212 | struct imsm_super *mpb = super->mpb; | |
1213 | struct dl *dl; | |
1214 | struct imsm_dev *dev; | |
1215 | struct imsm_map *map; | |
1216 | struct imsm_disk *disk; | |
1217 | __u32 status; | |
1218 | ||
1219 | if (super->creating_dev == -1) { | |
1220 | fprintf(stderr, Name ": no active raid device\n"); | |
1221 | abort(); | |
1222 | } | |
1223 | ||
1224 | dev = get_imsm_dev(mpb, super->creating_dev); | |
1225 | map = &dev->vol.map[0]; | |
1226 | ||
1227 | for (dl = super->disks; dl ; dl = dl->next) | |
1228 | if (dl->major == dk->major && | |
1229 | dl->minor == dk->minor) | |
1230 | break; | |
1231 | if (!dl || ! (dk->state & (1<<MD_DISK_SYNC))) | |
1232 | return; | |
1233 | ||
1234 | map->disk_ord_tbl[dk->number] = __cpu_to_le32(dl->index); | |
1235 | ||
1236 | disk = get_imsm_disk(mpb, dl->index); | |
1237 | status = CONFIGURED_DISK | USABLE_DISK; | |
1238 | disk->status = __cpu_to_le32(status); | |
cdddbdbc DW |
1239 | } |
1240 | ||
c2c087e6 DW |
1241 | static int store_imsm_mpb(int fd, struct intel_super *super); |
1242 | ||
1243 | static int write_super_imsm(struct intel_super *super, int doclose) | |
cdddbdbc | 1244 | { |
c2c087e6 DW |
1245 | struct imsm_super *mpb = super->mpb; |
1246 | struct dl *d; | |
1247 | __u32 generation; | |
1248 | __u32 sum; | |
cdddbdbc | 1249 | |
c2c087e6 DW |
1250 | /* 'generation' is incremented everytime the metadata is written */ |
1251 | generation = __le32_to_cpu(mpb->generation_num); | |
1252 | generation++; | |
1253 | mpb->generation_num = __cpu_to_le32(generation); | |
1254 | ||
1255 | /* recalculate checksum */ | |
1256 | sum = gen_imsm_checksum(mpb); | |
1257 | mpb->check_sum = __cpu_to_le32(sum); | |
1258 | ||
1259 | for (d = super->disks; d ; d = d->next) { | |
1260 | if (store_imsm_mpb(d->fd, super)) { | |
1261 | fprintf(stderr, "%s: failed for device %d:%d %s\n", | |
1262 | __func__, d->major, d->minor, strerror(errno)); | |
1263 | return 0; | |
1264 | } | |
1265 | if (doclose) { | |
1266 | close(d->fd); | |
1267 | d->fd = -1; | |
1268 | } | |
1269 | } | |
1270 | ||
1271 | return 1; | |
1272 | } | |
1273 | ||
1274 | static int write_init_super_imsm(struct supertype *st) | |
1275 | { | |
1276 | return write_super_imsm(st->sb, 1); | |
cdddbdbc DW |
1277 | } |
1278 | ||
1279 | static int store_zero_imsm(struct supertype *st, int fd) | |
1280 | { | |
551c80c1 DW |
1281 | unsigned long long dsize; |
1282 | char buf[512]; | |
1283 | ||
1284 | get_dev_size(fd, NULL, &dsize); | |
1285 | ||
1286 | /* first block is stored on second to last sector of the disk */ | |
1287 | if (lseek64(fd, dsize - (512 * 2), SEEK_SET) < 0) | |
1288 | return 1; | |
1289 | ||
1290 | memset(buf, 0, sizeof(buf)); | |
1291 | if (write(fd, buf, sizeof(buf)) != sizeof(buf)) | |
1292 | return 1; | |
cdddbdbc DW |
1293 | |
1294 | return 0; | |
1295 | } | |
1296 | ||
f352c545 | 1297 | static void getinfo_super_n_imsm_container(struct supertype *st, struct mdinfo *info) |
cdddbdbc | 1298 | { |
f352c545 | 1299 | /* just need offset and size... |
c2c087e6 | 1300 | * of the metadata |
f352c545 DW |
1301 | */ |
1302 | struct intel_super *super = st->sb; | |
1303 | struct imsm_super *mpb = super->mpb; | |
1304 | struct imsm_disk *disk = get_imsm_disk(mpb, info->disk.number); | |
f352c545 | 1305 | |
c2c087e6 DW |
1306 | info->data_offset = __le32_to_cpu(disk->total_blocks) - |
1307 | (MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS); | |
1308 | info->component_size = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
cdddbdbc DW |
1309 | } |
1310 | ||
8b353278 | 1311 | static void getinfo_super_n_imsm_volume(struct supertype *st, struct mdinfo *info) |
cdddbdbc | 1312 | { |
c2c087e6 DW |
1313 | /* Find the particular details for info->disk.raid_disk. |
1314 | * This includes data_offset, component_size, | |
1315 | */ | |
1316 | struct intel_super *super = st->sb; | |
1317 | struct imsm_super *mpb = super->mpb; | |
1318 | struct imsm_dev *dev = get_imsm_dev(mpb, super->creating_dev); | |
1319 | struct imsm_map *map = &dev->vol.map[0]; | |
1320 | ||
1321 | info->data_offset = __le32_to_cpu(map->pba_of_lba0); | |
1322 | info->component_size = __le32_to_cpu(map->blocks_per_member); | |
cdddbdbc DW |
1323 | } |
1324 | ||
1325 | static int validate_geometry_imsm(struct supertype *st, int level, int layout, | |
1326 | int raiddisks, int chunk, unsigned long long size, | |
c2c087e6 | 1327 | char *dev, unsigned long long *freesize) |
cdddbdbc | 1328 | { |
c2c087e6 DW |
1329 | int fd, cfd; |
1330 | struct mdinfo *sra; | |
cdddbdbc | 1331 | |
c2c087e6 DW |
1332 | /* if given unused devices create a container |
1333 | * if given given devices in a container create a member volume | |
1334 | */ | |
1335 | if (level == LEVEL_CONTAINER) { | |
1336 | st->ss = &super_imsm_container; | |
1337 | if (dev) { | |
1338 | /* validate the container, dev == NULL */ | |
1339 | int rv = st->ss->validate_geometry(st, level, layout, | |
1340 | raiddisks, chunk, | |
1341 | size, | |
1342 | NULL, freesize); | |
1343 | if (rv) | |
1344 | return rv; | |
1345 | } | |
1346 | return st->ss->validate_geometry(st, level, layout, raiddisks, | |
1347 | chunk, size, dev, freesize); | |
1348 | } | |
1349 | ||
1350 | if (st->sb) { | |
1351 | /* creating in a given container */ | |
1352 | st->ss = &super_imsm_volume; | |
1353 | if (dev) { | |
1354 | int rv = st->ss->validate_geometry(st, level, layout, | |
1355 | raiddisks, chunk, | |
1356 | size, | |
1357 | NULL, freesize); | |
1358 | if (rv) | |
1359 | return rv; | |
1360 | } | |
1361 | return st->ss->validate_geometry(st, level, layout, raiddisks, | |
1362 | chunk, size, dev, freesize); | |
1363 | } | |
1364 | ||
1365 | /* limit creation to the following levels */ | |
1366 | if (!dev) | |
1367 | switch (level) { | |
1368 | case 0: | |
1369 | case 1: | |
1370 | case 10: | |
1371 | case 5: | |
1372 | break; | |
1373 | default: | |
1374 | return 1; | |
1375 | } | |
1376 | ||
1377 | /* This device needs to be a device in an 'imsm' container */ | |
1378 | fd = open(dev, O_RDONLY|O_EXCL, 0); | |
1379 | if (fd >= 0) { | |
1380 | fprintf(stderr, | |
1381 | Name ": Cannot create this array on device %s\n", | |
1382 | dev); | |
1383 | close(fd); | |
1384 | return 0; | |
1385 | } | |
1386 | if (errno != EBUSY || (fd = open(dev, O_RDONLY, 0)) < 0) { | |
1387 | fprintf(stderr, Name ": Cannot open %s: %s\n", | |
1388 | dev, strerror(errno)); | |
1389 | return 0; | |
1390 | } | |
1391 | /* Well, it is in use by someone, maybe an 'imsm' container. */ | |
1392 | cfd = open_container(fd); | |
1393 | if (cfd < 0) { | |
1394 | close(fd); | |
1395 | fprintf(stderr, Name ": Cannot use %s: It is busy\n", | |
1396 | dev); | |
1397 | return 0; | |
1398 | } | |
1399 | sra = sysfs_read(cfd, 0, GET_VERSION); | |
1400 | close(fd); | |
1401 | if (sra && sra->array.major_version == -1 && | |
1402 | strcmp(sra->text_version, "imsm") == 0) { | |
1403 | /* This is a member of a imsm container. Load the container | |
1404 | * and try to create a volume | |
1405 | */ | |
1406 | struct intel_super *super; | |
1407 | st->ss = &super_imsm_volume; | |
1408 | if (load_super_imsm_all(st, cfd, (void **) &super, NULL, 1) == 0) { | |
1409 | st->sb = super; | |
1410 | st->container_dev = fd2devnum(cfd); | |
1411 | close(cfd); | |
1412 | return st->ss->validate_geometry(st, level, layout, | |
1413 | raiddisks, chunk, size, | |
1414 | dev, freesize); | |
1415 | } | |
1416 | close(cfd); | |
1417 | } else /* may belong to another container */ | |
1418 | return 0; | |
1419 | ||
1420 | return 1; | |
cdddbdbc DW |
1421 | } |
1422 | ||
1423 | static int validate_geometry_imsm_container(struct supertype *st, int level, | |
1424 | int layout, int raiddisks, int chunk, | |
c2c087e6 | 1425 | unsigned long long size, char *dev, |
cdddbdbc DW |
1426 | unsigned long long *freesize) |
1427 | { | |
c2c087e6 DW |
1428 | int fd; |
1429 | unsigned long long ldsize; | |
cdddbdbc | 1430 | |
c2c087e6 DW |
1431 | if (level != LEVEL_CONTAINER) |
1432 | return 0; | |
1433 | if (!dev) | |
1434 | return 1; | |
1435 | ||
1436 | fd = open(dev, O_RDONLY|O_EXCL, 0); | |
1437 | if (fd < 0) { | |
1438 | fprintf(stderr, Name ": Cannot open %s: %s\n", | |
1439 | dev, strerror(errno)); | |
1440 | return 0; | |
1441 | } | |
1442 | if (!get_dev_size(fd, dev, &ldsize)) { | |
1443 | close(fd); | |
1444 | return 0; | |
1445 | } | |
1446 | close(fd); | |
1447 | ||
1448 | *freesize = avail_size_imsm(st, ldsize >> 9); | |
1449 | ||
1450 | return 1; | |
cdddbdbc DW |
1451 | } |
1452 | ||
c2c087e6 DW |
1453 | /* validate_geometry_imsm_volume - lifted from validate_geometry_ddf_bvd |
1454 | * FIX ME add ahci details | |
1455 | */ | |
8b353278 DW |
1456 | static int validate_geometry_imsm_volume(struct supertype *st, int level, |
1457 | int layout, int raiddisks, int chunk, | |
c2c087e6 | 1458 | unsigned long long size, char *dev, |
8b353278 | 1459 | unsigned long long *freesize) |
cdddbdbc | 1460 | { |
c2c087e6 DW |
1461 | struct stat stb; |
1462 | struct intel_super *super = st->sb; | |
1463 | struct dl *dl; | |
1464 | unsigned long long pos = 0; | |
1465 | unsigned long long maxsize; | |
1466 | struct extent *e; | |
1467 | int i; | |
cdddbdbc | 1468 | |
c2c087e6 DW |
1469 | if (level == LEVEL_CONTAINER) |
1470 | return 0; | |
1471 | ||
1472 | if (level == 1 && raiddisks > 2) { | |
1473 | fprintf(stderr, Name ": imsm does not support more than 2 " | |
1474 | "in a raid1 configuration\n"); | |
1475 | return 0; | |
1476 | } | |
1477 | ||
1478 | /* We must have the container info already read in. */ | |
1479 | if (!super) | |
1480 | return 0; | |
1481 | ||
1482 | if (!dev) { | |
1483 | /* General test: make sure there is space for | |
1484 | * 'raiddisks' device extents of size 'size'. | |
1485 | */ | |
1486 | unsigned long long minsize = size*2 /* convert to blocks */; | |
1487 | int dcnt = 0; | |
1488 | if (minsize == 0) | |
1489 | minsize = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
1490 | for (dl = super->disks; dl ; dl = dl->next) { | |
1491 | int found = 0; | |
1492 | ||
1493 | i = 0; | |
1494 | e = get_extents(super, dl); | |
1495 | if (!e) continue; | |
1496 | do { | |
1497 | unsigned long long esize; | |
1498 | esize = e[i].start - pos; | |
1499 | if (esize >= minsize) | |
1500 | found = 1; | |
1501 | pos = e[i].start + e[i].size; | |
1502 | i++; | |
1503 | } while (e[i-1].size); | |
1504 | if (found) | |
1505 | dcnt++; | |
1506 | free(e); | |
1507 | } | |
1508 | if (dcnt < raiddisks) { | |
1509 | fprintf(stderr, Name ": Not enough devices with space " | |
1510 | "for this array (%d < %d)\n", | |
1511 | dcnt, raiddisks); | |
1512 | return 0; | |
1513 | } | |
1514 | return 1; | |
1515 | } | |
1516 | /* This device must be a member of the set */ | |
1517 | if (stat(dev, &stb) < 0) | |
1518 | return 0; | |
1519 | if ((S_IFMT & stb.st_mode) != S_IFBLK) | |
1520 | return 0; | |
1521 | for (dl = super->disks ; dl ; dl = dl->next) { | |
1522 | if (dl->major == major(stb.st_rdev) && | |
1523 | dl->minor == minor(stb.st_rdev)) | |
1524 | break; | |
1525 | } | |
1526 | if (!dl) { | |
1527 | fprintf(stderr, Name ": %s is not in the same imsm set\n", | |
1528 | dev); | |
1529 | return 0; | |
1530 | } | |
1531 | e = get_extents(super, dl); | |
1532 | maxsize = 0; | |
1533 | i = 0; | |
1534 | if (e) do { | |
1535 | unsigned long long esize; | |
1536 | esize = e[i].start - pos; | |
1537 | if (esize >= maxsize) | |
1538 | maxsize = esize; | |
1539 | pos = e[i].start + e[i].size; | |
1540 | i++; | |
1541 | } while (e[i-1].size); | |
1542 | *freesize = maxsize; | |
1543 | ||
1544 | return 1; | |
cdddbdbc DW |
1545 | } |
1546 | ||
cdddbdbc DW |
1547 | static struct mdinfo *container_content_imsm(struct supertype *st) |
1548 | { | |
4f5bc454 DW |
1549 | /* Given a container loaded by load_super_imsm_all, |
1550 | * extract information about all the arrays into | |
1551 | * an mdinfo tree. | |
1552 | * | |
1553 | * For each imsm_dev create an mdinfo, fill it in, | |
1554 | * then look for matching devices in super->disks | |
1555 | * and create appropriate device mdinfo. | |
1556 | */ | |
1557 | struct intel_super *super = st->sb; | |
1558 | struct imsm_super *mpb = super->mpb; | |
1559 | struct mdinfo *rest = NULL; | |
1560 | int i; | |
cdddbdbc | 1561 | |
4f5bc454 DW |
1562 | for (i = 0; i < mpb->num_raid_devs; i++) { |
1563 | struct imsm_dev *dev = get_imsm_dev(mpb, i); | |
1564 | struct imsm_vol *vol = &dev->vol; | |
1565 | struct imsm_map *map = vol->map; | |
1566 | struct mdinfo *this; | |
1567 | __u64 sz; | |
1568 | int slot; | |
1569 | ||
1570 | this = malloc(sizeof(*this)); | |
1571 | memset(this, 0, sizeof(*this)); | |
1572 | this->next = rest; | |
1573 | rest = this; | |
1574 | ||
1575 | this->array.major_version = 2000; | |
1576 | get_imsm_numerical_version(mpb, &this->array.minor_version, | |
1577 | &this->array.patch_version); | |
1578 | this->array.level = get_imsm_raid_level(map); | |
1579 | this->array.raid_disks = map->num_members; | |
c2c087e6 | 1580 | this->array.layout = imsm_level_to_layout(this->array.level); |
4f5bc454 DW |
1581 | this->array.md_minor = -1; |
1582 | this->array.ctime = 0; | |
1583 | this->array.utime = 0; | |
1584 | this->array.chunk_size = __le16_to_cpu(map->blocks_per_strip) << 9; | |
1585 | this->array.state = !vol->dirty; | |
1586 | this->container_member = i; | |
0fd5c350 DW |
1587 | if (map->map_state == IMSM_T_STATE_UNINITIALIZED || dev->vol.dirty) |
1588 | this->resync_start = 0; | |
1589 | else | |
1590 | this->resync_start = ~0ULL; | |
1591 | ||
4f5bc454 DW |
1592 | strncpy(this->name, (char *) dev->volume, MAX_RAID_SERIAL_LEN); |
1593 | this->name[MAX_RAID_SERIAL_LEN] = 0; | |
1594 | ||
159c3a1a NB |
1595 | sprintf(this->text_version, "/%s/%d", |
1596 | devnum2devname(st->container_dev), | |
1597 | this->container_member); | |
1598 | ||
4f5bc454 DW |
1599 | memset(this->uuid, 0, sizeof(this->uuid)); |
1600 | ||
1601 | sz = __le32_to_cpu(dev->size_high); | |
1602 | sz <<= 32; | |
1603 | sz += __le32_to_cpu(dev->size_low); | |
1604 | this->component_size = sz; | |
1605 | this->array.size = this->component_size / 2; | |
1606 | ||
1607 | for (slot = 0 ; slot < map->num_members; slot++) { | |
1608 | struct imsm_disk *disk; | |
1609 | struct mdinfo *info_d; | |
1610 | struct dl *d; | |
1611 | int idx; | |
1612 | __u32 s; | |
1613 | ||
1614 | idx = __le32_to_cpu(map->disk_ord_tbl[slot] & ~(0xff << 24)); | |
1615 | for (d = super->disks; d ; d = d->next) | |
1616 | if (d->index == idx) | |
1617 | break; | |
1618 | ||
1619 | if (d == NULL) | |
1620 | break; /* shouldn't this be continue ?? */ | |
1621 | ||
1622 | info_d = malloc(sizeof(*info_d)); | |
1623 | if (!info_d) | |
1624 | break; /* ditto ?? */ | |
1625 | memset(info_d, 0, sizeof(*info_d)); | |
1626 | info_d->next = this->devs; | |
1627 | this->devs = info_d; | |
1628 | ||
1629 | disk = get_imsm_disk(mpb, idx); | |
1630 | s = __le32_to_cpu(disk->status); | |
1631 | ||
1632 | info_d->disk.number = d->index; | |
1633 | info_d->disk.major = d->major; | |
1634 | info_d->disk.minor = d->minor; | |
1635 | info_d->disk.raid_disk = slot; | |
1636 | info_d->disk.state = s & CONFIGURED_DISK ? (1 << MD_DISK_ACTIVE) : 0; | |
1637 | info_d->disk.state |= s & FAILED_DISK ? (1 << MD_DISK_FAULTY) : 0; | |
1638 | info_d->disk.state |= s & USABLE_DISK ? (1 << MD_DISK_SYNC) : 0; | |
1639 | ||
1640 | this->array.working_disks++; | |
1641 | ||
1642 | info_d->events = __le32_to_cpu(mpb->generation_num); | |
1643 | info_d->data_offset = __le32_to_cpu(map->pba_of_lba0); | |
1644 | info_d->component_size = __le32_to_cpu(map->blocks_per_member); | |
1645 | if (d->devname) | |
1646 | strcpy(info_d->name, d->devname); | |
1647 | } | |
1648 | } | |
1649 | ||
1650 | return rest; | |
cdddbdbc DW |
1651 | } |
1652 | ||
845dea95 | 1653 | |
cba0191b NB |
1654 | static int imsm_open_new(struct supertype *c, struct active_array *a, |
1655 | char *inst) | |
845dea95 | 1656 | { |
4e6e574a | 1657 | dprintf("imsm: open_new %s\n", inst); |
cba0191b | 1658 | a->info.container_member = atoi(inst); |
845dea95 NB |
1659 | return 0; |
1660 | } | |
1661 | ||
c2a1e7da DW |
1662 | static __u8 imsm_check_degraded(struct imsm_super *mpb, int n, int failed) |
1663 | { | |
1664 | struct imsm_dev *dev = get_imsm_dev(mpb, n); | |
1665 | struct imsm_map *map = dev->vol.map; | |
1666 | ||
1667 | if (!failed) | |
1668 | return map->map_state; | |
1669 | ||
1670 | switch (get_imsm_raid_level(map)) { | |
1671 | case 0: | |
1672 | return IMSM_T_STATE_FAILED; | |
1673 | break; | |
1674 | case 1: | |
1675 | if (failed < map->num_members) | |
1676 | return IMSM_T_STATE_DEGRADED; | |
1677 | else | |
1678 | return IMSM_T_STATE_FAILED; | |
1679 | break; | |
1680 | case 10: | |
1681 | { | |
1682 | /** | |
1683 | * check to see if any mirrors have failed, | |
1684 | * otherwise we are degraded | |
1685 | */ | |
1686 | int device_per_mirror = 2; /* FIXME is this always the case? | |
1687 | * and are they always adjacent? | |
1688 | */ | |
1689 | int failed = 0; | |
1690 | int i; | |
1691 | ||
1692 | for (i = 0; i < map->num_members; i++) { | |
1693 | int idx = get_imsm_disk_idx(map, i); | |
1694 | struct imsm_disk *disk = get_imsm_disk(mpb, idx); | |
1695 | ||
1696 | if (__le32_to_cpu(disk->status) & FAILED_DISK) | |
1697 | failed++; | |
1698 | ||
1699 | if (failed >= device_per_mirror) | |
1700 | return IMSM_T_STATE_FAILED; | |
1701 | ||
1702 | /* reset 'failed' for next mirror set */ | |
1703 | if (!((i + 1) % device_per_mirror)) | |
1704 | failed = 0; | |
1705 | } | |
1706 | ||
1707 | return IMSM_T_STATE_DEGRADED; | |
1708 | } | |
1709 | case 5: | |
1710 | if (failed < 2) | |
1711 | return IMSM_T_STATE_DEGRADED; | |
1712 | else | |
1713 | return IMSM_T_STATE_FAILED; | |
1714 | break; | |
1715 | default: | |
1716 | break; | |
1717 | } | |
1718 | ||
1719 | return map->map_state; | |
1720 | } | |
1721 | ||
1722 | static int imsm_count_failed(struct imsm_super *mpb, struct imsm_map *map) | |
1723 | { | |
1724 | int i; | |
1725 | int failed = 0; | |
1726 | struct imsm_disk *disk; | |
1727 | ||
1728 | for (i = 0; i < map->num_members; i++) { | |
1729 | int idx = get_imsm_disk_idx(map, i); | |
1730 | ||
1731 | disk = get_imsm_disk(mpb, idx); | |
1732 | if (__le32_to_cpu(disk->status) & FAILED_DISK) | |
1733 | failed++; | |
1734 | } | |
1735 | ||
1736 | return failed; | |
845dea95 NB |
1737 | } |
1738 | ||
a862209d DW |
1739 | static void imsm_set_array_state(struct active_array *a, int consistent) |
1740 | { | |
1741 | int inst = a->info.container_member; | |
1742 | struct intel_super *super = a->container->sb; | |
1743 | struct imsm_dev *dev = get_imsm_dev(super->mpb, inst); | |
1744 | struct imsm_map *map = &dev->vol.map[0]; | |
1745 | int dirty = !consistent; | |
1746 | int failed; | |
1747 | __u8 map_state; | |
1748 | ||
1749 | if (a->resync_start == ~0ULL) { | |
1750 | failed = imsm_count_failed(super->mpb, map); | |
1751 | map_state = imsm_check_degraded(super->mpb, inst, failed); | |
1752 | if (!failed) | |
1753 | map_state = IMSM_T_STATE_NORMAL; | |
1754 | if (map->map_state != map_state) { | |
4e6e574a | 1755 | dprintf("imsm: map_state %d: %d\n", |
a862209d DW |
1756 | inst, map_state); |
1757 | map->map_state = map_state; | |
1758 | super->updates_pending++; | |
1759 | } | |
1760 | } | |
1761 | ||
1762 | if (dev->vol.dirty != dirty) { | |
4e6e574a | 1763 | dprintf("imsm: mark '%s' (%llu)\n", |
a862209d DW |
1764 | dirty?"dirty":"clean", a->resync_start); |
1765 | ||
1766 | dev->vol.dirty = dirty; | |
1767 | super->updates_pending++; | |
1768 | } | |
1769 | } | |
1770 | ||
8d45d196 | 1771 | static void imsm_set_disk(struct active_array *a, int n, int state) |
845dea95 | 1772 | { |
8d45d196 DW |
1773 | int inst = a->info.container_member; |
1774 | struct intel_super *super = a->container->sb; | |
1775 | struct imsm_dev *dev = get_imsm_dev(super->mpb, inst); | |
1776 | struct imsm_map *map = dev->vol.map; | |
1777 | struct imsm_disk *disk; | |
1778 | __u32 status; | |
1779 | int failed = 0; | |
1780 | int new_failure = 0; | |
1781 | ||
1782 | if (n > map->num_members) | |
1783 | fprintf(stderr, "imsm: set_disk %d out of range 0..%d\n", | |
1784 | n, map->num_members - 1); | |
1785 | ||
1786 | if (n < 0) | |
1787 | return; | |
1788 | ||
4e6e574a | 1789 | dprintf("imsm: set_disk %d:%x\n", n, state); |
8d45d196 DW |
1790 | |
1791 | disk = get_imsm_disk(super->mpb, get_imsm_disk_idx(map, n)); | |
1792 | ||
1793 | /* check if we have seen this failure before */ | |
1794 | status = __le32_to_cpu(disk->status); | |
1795 | if ((state & DS_FAULTY) && !(status & FAILED_DISK)) { | |
1796 | status |= FAILED_DISK; | |
1797 | disk->status = __cpu_to_le32(status); | |
1798 | new_failure = 1; | |
1799 | } | |
1800 | ||
1801 | /** | |
1802 | * the number of failures have changed, count up 'failed' to determine | |
1803 | * degraded / failed status | |
1804 | */ | |
1805 | if (new_failure && map->map_state != IMSM_T_STATE_FAILED) | |
1806 | failed = imsm_count_failed(super->mpb, map); | |
1807 | ||
1808 | if (failed) | |
1809 | map->map_state = imsm_check_degraded(super->mpb, inst, failed); | |
1810 | ||
1811 | if (new_failure) | |
1812 | super->updates_pending++; | |
845dea95 NB |
1813 | } |
1814 | ||
c2a1e7da DW |
1815 | static int store_imsm_mpb(int fd, struct intel_super *super) |
1816 | { | |
1817 | struct imsm_super *mpb = super->mpb; | |
1818 | __u32 mpb_size = __le32_to_cpu(mpb->mpb_size); | |
1819 | unsigned long long dsize; | |
1820 | unsigned long long sectors; | |
1821 | ||
1822 | get_dev_size(fd, NULL, &dsize); | |
1823 | ||
272f648f DW |
1824 | if (mpb_size > 512) { |
1825 | /* -1 to account for anchor */ | |
1826 | sectors = mpb_sectors(mpb) - 1; | |
c2a1e7da | 1827 | |
272f648f DW |
1828 | /* write the extended mpb to the sectors preceeding the anchor */ |
1829 | if (lseek64(fd, dsize - (512 * (2 + sectors)), SEEK_SET) < 0) | |
1830 | return 1; | |
c2a1e7da | 1831 | |
272f648f DW |
1832 | if (write(fd, super->buf + 512, mpb_size - 512) != mpb_size - 512) |
1833 | return 1; | |
1834 | } | |
c2a1e7da | 1835 | |
272f648f DW |
1836 | /* first block is stored on second to last sector of the disk */ |
1837 | if (lseek64(fd, dsize - (512 * 2), SEEK_SET) < 0) | |
c2a1e7da DW |
1838 | return 1; |
1839 | ||
272f648f | 1840 | if (write(fd, super->buf, 512) != 512) |
c2a1e7da DW |
1841 | return 1; |
1842 | ||
1843 | fsync(fd); | |
1844 | ||
1845 | return 0; | |
1846 | } | |
1847 | ||
2e735d19 | 1848 | static void imsm_sync_metadata(struct supertype *container) |
845dea95 | 1849 | { |
2e735d19 | 1850 | struct intel_super *super = container->sb; |
c2a1e7da DW |
1851 | |
1852 | if (!super->updates_pending) | |
1853 | return; | |
1854 | ||
c2c087e6 | 1855 | write_super_imsm(super, 0); |
c2a1e7da DW |
1856 | |
1857 | super->updates_pending = 0; | |
845dea95 NB |
1858 | } |
1859 | ||
cdddbdbc DW |
1860 | struct superswitch super_imsm = { |
1861 | #ifndef MDASSEMBLE | |
1862 | .examine_super = examine_super_imsm, | |
1863 | .brief_examine_super = brief_examine_super_imsm, | |
1864 | .detail_super = detail_super_imsm, | |
1865 | .brief_detail_super = brief_detail_super_imsm, | |
1866 | #endif | |
1867 | .match_home = match_home_imsm, | |
1868 | .uuid_from_super= uuid_from_super_imsm, | |
1869 | .getinfo_super = getinfo_super_imsm, | |
1870 | .update_super = update_super_imsm, | |
1871 | ||
1872 | .avail_size = avail_size_imsm, | |
1873 | ||
1874 | .compare_super = compare_super_imsm, | |
1875 | ||
1876 | .load_super = load_super_imsm, | |
1877 | .init_super = init_zero_imsm, | |
1878 | .store_super = store_zero_imsm, | |
1879 | .free_super = free_super_imsm, | |
1880 | .match_metadata_desc = match_metadata_desc_imsm, | |
f352c545 | 1881 | .getinfo_super_n = getinfo_super_n_imsm_container, |
cdddbdbc DW |
1882 | |
1883 | .validate_geometry = validate_geometry_imsm, | |
cdddbdbc DW |
1884 | .swapuuid = 0, |
1885 | .external = 1, | |
845dea95 NB |
1886 | |
1887 | /* for mdmon */ | |
1888 | .open_new = imsm_open_new, | |
1889 | .load_super = load_super_imsm, | |
ed9d66aa | 1890 | .set_array_state= imsm_set_array_state, |
845dea95 NB |
1891 | .set_disk = imsm_set_disk, |
1892 | .sync_metadata = imsm_sync_metadata, | |
cdddbdbc DW |
1893 | }; |
1894 | ||
1895 | /* super_imsm_container is set by validate_geometry_imsm when given a | |
1896 | * device that is not part of any array | |
1897 | */ | |
1898 | struct superswitch super_imsm_container = { | |
1899 | ||
1900 | .validate_geometry = validate_geometry_imsm_container, | |
1901 | .init_super = init_super_imsm, | |
1902 | .add_to_super = add_to_super_imsm, | |
1903 | .write_init_super = write_init_super_imsm, | |
1904 | .getinfo_super = getinfo_super_imsm, | |
f352c545 | 1905 | .getinfo_super_n = getinfo_super_n_imsm_container, |
cdddbdbc DW |
1906 | .load_super = load_super_imsm, |
1907 | ||
1908 | #ifndef MDASSEMBLE | |
1909 | .examine_super = examine_super_imsm, | |
1910 | .brief_examine_super = brief_examine_super_imsm, | |
1911 | .detail_super = detail_super_imsm, | |
1912 | .brief_detail_super = brief_detail_super_imsm, | |
1913 | #endif | |
1914 | ||
1915 | .free_super = free_super_imsm, | |
1916 | ||
1917 | .container_content = container_content_imsm, | |
1918 | ||
cdddbdbc DW |
1919 | .swapuuid = 0, |
1920 | .external = 1, | |
cdddbdbc DW |
1921 | }; |
1922 | ||
0063ecba | 1923 | static struct superswitch super_imsm_volume = { |
cdddbdbc | 1924 | .update_super = update_super_imsm, |
8b353278 DW |
1925 | .init_super = init_super_imsm_volume, |
1926 | .add_to_super = add_to_super_imsm_volume, | |
1927 | .getinfo_super = getinfo_super_imsm_volume, | |
1928 | .getinfo_super_n = getinfo_super_n_imsm_volume, | |
cdddbdbc DW |
1929 | .write_init_super = write_init_super_imsm, |
1930 | ||
1931 | .load_super = load_super_imsm, | |
1932 | .free_super = free_super_imsm, | |
8b353278 | 1933 | .match_metadata_desc = match_metadata_desc_imsm_volume, |
cdddbdbc DW |
1934 | |
1935 | ||
8b353278 | 1936 | .validate_geometry = validate_geometry_imsm_volume, |
cdddbdbc DW |
1937 | .swapuuid = 0, |
1938 | .external = 2, | |
cdddbdbc | 1939 | }; |