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Commit | Line | Data |
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cdddbdbc DW |
1 | /* |
2 | * mdadm - Intel(R) Matrix Storage Manager Support | |
3 | * | |
a54d5262 | 4 | * Copyright (C) 2002-2008 Intel Corporation |
cdddbdbc DW |
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 | ||
51006d85 | 20 | #define HAVE_STDINT_H 1 |
cdddbdbc | 21 | #include "mdadm.h" |
c2a1e7da | 22 | #include "mdmon.h" |
51006d85 | 23 | #include "sha1.h" |
88c32bb1 | 24 | #include "platform-intel.h" |
cdddbdbc DW |
25 | #include <values.h> |
26 | #include <scsi/sg.h> | |
27 | #include <ctype.h> | |
d665cc31 | 28 | #include <dirent.h> |
cdddbdbc DW |
29 | |
30 | /* MPB == Metadata Parameter Block */ | |
31 | #define MPB_SIGNATURE "Intel Raid ISM Cfg Sig. " | |
32 | #define MPB_SIG_LEN (strlen(MPB_SIGNATURE)) | |
33 | #define MPB_VERSION_RAID0 "1.0.00" | |
34 | #define MPB_VERSION_RAID1 "1.1.00" | |
fe7ed8cb DW |
35 | #define MPB_VERSION_MANY_VOLUMES_PER_ARRAY "1.2.00" |
36 | #define MPB_VERSION_3OR4_DISK_ARRAY "1.2.01" | |
cdddbdbc | 37 | #define MPB_VERSION_RAID5 "1.2.02" |
fe7ed8cb DW |
38 | #define MPB_VERSION_5OR6_DISK_ARRAY "1.2.04" |
39 | #define MPB_VERSION_CNG "1.2.06" | |
40 | #define MPB_VERSION_ATTRIBS "1.3.00" | |
cdddbdbc DW |
41 | #define MAX_SIGNATURE_LENGTH 32 |
42 | #define MAX_RAID_SERIAL_LEN 16 | |
fe7ed8cb DW |
43 | |
44 | #define MPB_ATTRIB_CHECKSUM_VERIFY __cpu_to_le32(0x80000000) | |
45 | #define MPB_ATTRIB_PM __cpu_to_le32(0x40000000) | |
46 | #define MPB_ATTRIB_2TB __cpu_to_le32(0x20000000) | |
47 | #define MPB_ATTRIB_RAID0 __cpu_to_le32(0x00000001) | |
48 | #define MPB_ATTRIB_RAID1 __cpu_to_le32(0x00000002) | |
49 | #define MPB_ATTRIB_RAID10 __cpu_to_le32(0x00000004) | |
50 | #define MPB_ATTRIB_RAID1E __cpu_to_le32(0x00000008) | |
51 | #define MPB_ATTRIB_RAID5 __cpu_to_le32(0x00000010) | |
52 | #define MPB_ATTRIB_RAIDCNG __cpu_to_le32(0x00000020) | |
53 | ||
c2c087e6 DW |
54 | #define MPB_SECTOR_CNT 418 |
55 | #define IMSM_RESERVED_SECTORS 4096 | |
979d38be | 56 | #define SECT_PER_MB_SHIFT 11 |
cdddbdbc DW |
57 | |
58 | /* Disk configuration info. */ | |
59 | #define IMSM_MAX_DEVICES 255 | |
60 | struct imsm_disk { | |
61 | __u8 serial[MAX_RAID_SERIAL_LEN];/* 0xD8 - 0xE7 ascii serial number */ | |
62 | __u32 total_blocks; /* 0xE8 - 0xEB total blocks */ | |
63 | __u32 scsi_id; /* 0xEC - 0xEF scsi ID */ | |
f2f27e63 DW |
64 | #define SPARE_DISK __cpu_to_le32(0x01) /* Spare */ |
65 | #define CONFIGURED_DISK __cpu_to_le32(0x02) /* Member of some RaidDev */ | |
66 | #define FAILED_DISK __cpu_to_le32(0x04) /* Permanent failure */ | |
cdddbdbc | 67 | __u32 status; /* 0xF0 - 0xF3 */ |
fe7ed8cb DW |
68 | __u32 owner_cfg_num; /* which config 0,1,2... owns this disk */ |
69 | #define IMSM_DISK_FILLERS 4 | |
cdddbdbc DW |
70 | __u32 filler[IMSM_DISK_FILLERS]; /* 0xF4 - 0x107 MPB_DISK_FILLERS for future expansion */ |
71 | }; | |
72 | ||
73 | /* RAID map configuration infos. */ | |
74 | struct imsm_map { | |
75 | __u32 pba_of_lba0; /* start address of partition */ | |
76 | __u32 blocks_per_member;/* blocks per member */ | |
77 | __u32 num_data_stripes; /* number of data stripes */ | |
78 | __u16 blocks_per_strip; | |
79 | __u8 map_state; /* Normal, Uninitialized, Degraded, Failed */ | |
80 | #define IMSM_T_STATE_NORMAL 0 | |
81 | #define IMSM_T_STATE_UNINITIALIZED 1 | |
e3bba0e0 DW |
82 | #define IMSM_T_STATE_DEGRADED 2 |
83 | #define IMSM_T_STATE_FAILED 3 | |
cdddbdbc DW |
84 | __u8 raid_level; |
85 | #define IMSM_T_RAID0 0 | |
86 | #define IMSM_T_RAID1 1 | |
87 | #define IMSM_T_RAID5 5 /* since metadata version 1.2.02 ? */ | |
88 | __u8 num_members; /* number of member disks */ | |
fe7ed8cb DW |
89 | __u8 num_domains; /* number of parity domains */ |
90 | __u8 failed_disk_num; /* valid only when state is degraded */ | |
252d23c0 | 91 | __u8 ddf; |
cdddbdbc | 92 | __u32 filler[7]; /* expansion area */ |
7eef0453 | 93 | #define IMSM_ORD_REBUILD (1 << 24) |
cdddbdbc | 94 | __u32 disk_ord_tbl[1]; /* disk_ord_tbl[num_members], |
7eef0453 DW |
95 | * top byte contains some flags |
96 | */ | |
cdddbdbc DW |
97 | } __attribute__ ((packed)); |
98 | ||
99 | struct imsm_vol { | |
f8f603f1 | 100 | __u32 curr_migr_unit; |
fe7ed8cb | 101 | __u32 checkpoint_id; /* id to access curr_migr_unit */ |
cdddbdbc | 102 | __u8 migr_state; /* Normal or Migrating */ |
e3bba0e0 DW |
103 | #define MIGR_INIT 0 |
104 | #define MIGR_REBUILD 1 | |
105 | #define MIGR_VERIFY 2 /* analagous to echo check > sync_action */ | |
106 | #define MIGR_GEN_MIGR 3 | |
107 | #define MIGR_STATE_CHANGE 4 | |
1484e727 | 108 | #define MIGR_REPAIR 5 |
cdddbdbc DW |
109 | __u8 migr_type; /* Initializing, Rebuilding, ... */ |
110 | __u8 dirty; | |
fe7ed8cb DW |
111 | __u8 fs_state; /* fast-sync state for CnG (0xff == disabled) */ |
112 | __u16 verify_errors; /* number of mismatches */ | |
113 | __u16 bad_blocks; /* number of bad blocks during verify */ | |
114 | __u32 filler[4]; | |
cdddbdbc DW |
115 | struct imsm_map map[1]; |
116 | /* here comes another one if migr_state */ | |
117 | } __attribute__ ((packed)); | |
118 | ||
119 | struct imsm_dev { | |
fe7ed8cb | 120 | __u8 volume[MAX_RAID_SERIAL_LEN]; |
cdddbdbc DW |
121 | __u32 size_low; |
122 | __u32 size_high; | |
fe7ed8cb DW |
123 | #define DEV_BOOTABLE __cpu_to_le32(0x01) |
124 | #define DEV_BOOT_DEVICE __cpu_to_le32(0x02) | |
125 | #define DEV_READ_COALESCING __cpu_to_le32(0x04) | |
126 | #define DEV_WRITE_COALESCING __cpu_to_le32(0x08) | |
127 | #define DEV_LAST_SHUTDOWN_DIRTY __cpu_to_le32(0x10) | |
128 | #define DEV_HIDDEN_AT_BOOT __cpu_to_le32(0x20) | |
129 | #define DEV_CURRENTLY_HIDDEN __cpu_to_le32(0x40) | |
130 | #define DEV_VERIFY_AND_FIX __cpu_to_le32(0x80) | |
131 | #define DEV_MAP_STATE_UNINIT __cpu_to_le32(0x100) | |
132 | #define DEV_NO_AUTO_RECOVERY __cpu_to_le32(0x200) | |
133 | #define DEV_CLONE_N_GO __cpu_to_le32(0x400) | |
134 | #define DEV_CLONE_MAN_SYNC __cpu_to_le32(0x800) | |
135 | #define DEV_CNG_MASTER_DISK_NUM __cpu_to_le32(0x1000) | |
cdddbdbc DW |
136 | __u32 status; /* Persistent RaidDev status */ |
137 | __u32 reserved_blocks; /* Reserved blocks at beginning of volume */ | |
fe7ed8cb DW |
138 | __u8 migr_priority; |
139 | __u8 num_sub_vols; | |
140 | __u8 tid; | |
141 | __u8 cng_master_disk; | |
142 | __u16 cache_policy; | |
143 | __u8 cng_state; | |
144 | __u8 cng_sub_state; | |
145 | #define IMSM_DEV_FILLERS 10 | |
cdddbdbc DW |
146 | __u32 filler[IMSM_DEV_FILLERS]; |
147 | struct imsm_vol vol; | |
148 | } __attribute__ ((packed)); | |
149 | ||
150 | struct imsm_super { | |
151 | __u8 sig[MAX_SIGNATURE_LENGTH]; /* 0x00 - 0x1F */ | |
152 | __u32 check_sum; /* 0x20 - 0x23 MPB Checksum */ | |
153 | __u32 mpb_size; /* 0x24 - 0x27 Size of MPB */ | |
154 | __u32 family_num; /* 0x28 - 0x2B Checksum from first time this config was written */ | |
155 | __u32 generation_num; /* 0x2C - 0x2F Incremented each time this array's MPB is written */ | |
604b746f JD |
156 | __u32 error_log_size; /* 0x30 - 0x33 in bytes */ |
157 | __u32 attributes; /* 0x34 - 0x37 */ | |
cdddbdbc DW |
158 | __u8 num_disks; /* 0x38 Number of configured disks */ |
159 | __u8 num_raid_devs; /* 0x39 Number of configured volumes */ | |
604b746f JD |
160 | __u8 error_log_pos; /* 0x3A */ |
161 | __u8 fill[1]; /* 0x3B */ | |
162 | __u32 cache_size; /* 0x3c - 0x40 in mb */ | |
163 | __u32 orig_family_num; /* 0x40 - 0x43 original family num */ | |
164 | __u32 pwr_cycle_count; /* 0x44 - 0x47 simulated power cycle count for array */ | |
165 | __u32 bbm_log_size; /* 0x48 - 0x4B - size of bad Block Mgmt Log in bytes */ | |
166 | #define IMSM_FILLERS 35 | |
167 | __u32 filler[IMSM_FILLERS]; /* 0x4C - 0xD7 RAID_MPB_FILLERS */ | |
cdddbdbc DW |
168 | struct imsm_disk disk[1]; /* 0xD8 diskTbl[numDisks] */ |
169 | /* here comes imsm_dev[num_raid_devs] */ | |
604b746f | 170 | /* here comes BBM logs */ |
cdddbdbc DW |
171 | } __attribute__ ((packed)); |
172 | ||
604b746f JD |
173 | #define BBM_LOG_MAX_ENTRIES 254 |
174 | ||
175 | struct bbm_log_entry { | |
176 | __u64 defective_block_start; | |
177 | #define UNREADABLE 0xFFFFFFFF | |
178 | __u32 spare_block_offset; | |
179 | __u16 remapped_marked_count; | |
180 | __u16 disk_ordinal; | |
181 | } __attribute__ ((__packed__)); | |
182 | ||
183 | struct bbm_log { | |
184 | __u32 signature; /* 0xABADB10C */ | |
185 | __u32 entry_count; | |
186 | __u32 reserved_spare_block_count; /* 0 */ | |
187 | __u32 reserved; /* 0xFFFF */ | |
188 | __u64 first_spare_lba; | |
189 | struct bbm_log_entry mapped_block_entries[BBM_LOG_MAX_ENTRIES]; | |
190 | } __attribute__ ((__packed__)); | |
191 | ||
192 | ||
cdddbdbc DW |
193 | #ifndef MDASSEMBLE |
194 | static char *map_state_str[] = { "normal", "uninitialized", "degraded", "failed" }; | |
195 | #endif | |
196 | ||
1484e727 DW |
197 | static __u8 migr_type(struct imsm_dev *dev) |
198 | { | |
199 | if (dev->vol.migr_type == MIGR_VERIFY && | |
200 | dev->status & DEV_VERIFY_AND_FIX) | |
201 | return MIGR_REPAIR; | |
202 | else | |
203 | return dev->vol.migr_type; | |
204 | } | |
205 | ||
206 | static void set_migr_type(struct imsm_dev *dev, __u8 migr_type) | |
207 | { | |
208 | /* for compatibility with older oroms convert MIGR_REPAIR, into | |
209 | * MIGR_VERIFY w/ DEV_VERIFY_AND_FIX status | |
210 | */ | |
211 | if (migr_type == MIGR_REPAIR) { | |
212 | dev->vol.migr_type = MIGR_VERIFY; | |
213 | dev->status |= DEV_VERIFY_AND_FIX; | |
214 | } else { | |
215 | dev->vol.migr_type = migr_type; | |
216 | dev->status &= ~DEV_VERIFY_AND_FIX; | |
217 | } | |
218 | } | |
219 | ||
87eb16df | 220 | static unsigned int sector_count(__u32 bytes) |
cdddbdbc | 221 | { |
87eb16df DW |
222 | return ((bytes + (512-1)) & (~(512-1))) / 512; |
223 | } | |
cdddbdbc | 224 | |
87eb16df DW |
225 | static unsigned int mpb_sectors(struct imsm_super *mpb) |
226 | { | |
227 | return sector_count(__le32_to_cpu(mpb->mpb_size)); | |
cdddbdbc DW |
228 | } |
229 | ||
ba2de7ba DW |
230 | struct intel_dev { |
231 | struct imsm_dev *dev; | |
232 | struct intel_dev *next; | |
f21e18ca | 233 | unsigned index; |
ba2de7ba DW |
234 | }; |
235 | ||
88654014 LM |
236 | struct intel_hba { |
237 | enum sys_dev_type type; | |
238 | char *path; | |
239 | char *pci_id; | |
240 | struct intel_hba *next; | |
241 | }; | |
242 | ||
1a64be56 LM |
243 | enum action { |
244 | DISK_REMOVE = 1, | |
245 | DISK_ADD | |
246 | }; | |
cdddbdbc DW |
247 | /* internal representation of IMSM metadata */ |
248 | struct intel_super { | |
249 | union { | |
949c47a0 DW |
250 | void *buf; /* O_DIRECT buffer for reading/writing metadata */ |
251 | struct imsm_super *anchor; /* immovable parameters */ | |
cdddbdbc | 252 | }; |
949c47a0 | 253 | size_t len; /* size of the 'buf' allocation */ |
4d7b1503 DW |
254 | void *next_buf; /* for realloc'ing buf from the manager */ |
255 | size_t next_len; | |
c2c087e6 | 256 | int updates_pending; /* count of pending updates for mdmon */ |
bf5a934a | 257 | int current_vol; /* index of raid device undergoing creation */ |
0dcecb2e | 258 | __u32 create_offset; /* common start for 'current_vol' */ |
148acb7b | 259 | __u32 random; /* random data for seeding new family numbers */ |
ba2de7ba | 260 | struct intel_dev *devlist; |
cdddbdbc DW |
261 | struct dl { |
262 | struct dl *next; | |
263 | int index; | |
264 | __u8 serial[MAX_RAID_SERIAL_LEN]; | |
265 | int major, minor; | |
266 | char *devname; | |
b9f594fe | 267 | struct imsm_disk disk; |
cdddbdbc | 268 | int fd; |
0dcecb2e DW |
269 | int extent_cnt; |
270 | struct extent *e; /* for determining freespace @ create */ | |
efb30e7f | 271 | int raiddisk; /* slot to fill in autolayout */ |
1a64be56 | 272 | enum action action; |
cdddbdbc | 273 | } *disks; |
1a64be56 LM |
274 | struct dl *disk_mgmt_list; /* list of disks to add/remove while mdmon |
275 | active */ | |
47ee5a45 | 276 | struct dl *missing; /* disks removed while we weren't looking */ |
43dad3d6 | 277 | struct bbm_log *bbm_log; |
88654014 | 278 | struct intel_hba *hba; /* device path of the raid controller for this metadata */ |
88c32bb1 | 279 | const struct imsm_orom *orom; /* platform firmware support */ |
a2b97981 DW |
280 | struct intel_super *next; /* (temp) list for disambiguating family_num */ |
281 | }; | |
282 | ||
283 | struct intel_disk { | |
284 | struct imsm_disk disk; | |
285 | #define IMSM_UNKNOWN_OWNER (-1) | |
286 | int owner; | |
287 | struct intel_disk *next; | |
cdddbdbc DW |
288 | }; |
289 | ||
c2c087e6 DW |
290 | struct extent { |
291 | unsigned long long start, size; | |
292 | }; | |
293 | ||
694575e7 KW |
294 | /* definitions of reshape process types */ |
295 | enum imsm_reshape_type { | |
296 | CH_TAKEOVER, | |
297 | CH_CHUNK_MIGR, | |
298 | CH_LEVEL_MIGRATION | |
299 | }; | |
300 | ||
88758e9d DW |
301 | /* definition of messages passed to imsm_process_update */ |
302 | enum imsm_update_type { | |
303 | update_activate_spare, | |
8273f55e | 304 | update_create_array, |
33414a01 | 305 | update_kill_array, |
aa534678 | 306 | update_rename_array, |
1a64be56 | 307 | update_add_remove_disk, |
78b10e66 | 308 | update_reshape_container_disks, |
bb025c2f | 309 | update_takeover |
88758e9d DW |
310 | }; |
311 | ||
312 | struct imsm_update_activate_spare { | |
313 | enum imsm_update_type type; | |
d23fe947 | 314 | struct dl *dl; |
88758e9d DW |
315 | int slot; |
316 | int array; | |
317 | struct imsm_update_activate_spare *next; | |
318 | }; | |
319 | ||
78b10e66 N |
320 | struct geo_params { |
321 | int dev_id; | |
322 | char *dev_name; | |
323 | long long size; | |
324 | int level; | |
325 | int layout; | |
326 | int chunksize; | |
327 | int raid_disks; | |
328 | }; | |
329 | ||
bb025c2f KW |
330 | enum takeover_direction { |
331 | R10_TO_R0, | |
332 | R0_TO_R10 | |
333 | }; | |
334 | struct imsm_update_takeover { | |
335 | enum imsm_update_type type; | |
336 | int subarray; | |
337 | enum takeover_direction direction; | |
338 | }; | |
78b10e66 N |
339 | |
340 | struct imsm_update_reshape { | |
341 | enum imsm_update_type type; | |
342 | int old_raid_disks; | |
343 | int new_raid_disks; | |
d195167d | 344 | int new_disks[1]; /* new_raid_disks - old_raid_disks makedev number */ |
78b10e66 N |
345 | }; |
346 | ||
54c2c1ea DW |
347 | struct disk_info { |
348 | __u8 serial[MAX_RAID_SERIAL_LEN]; | |
349 | }; | |
350 | ||
8273f55e DW |
351 | struct imsm_update_create_array { |
352 | enum imsm_update_type type; | |
8273f55e | 353 | int dev_idx; |
6a3e913e | 354 | struct imsm_dev dev; |
8273f55e DW |
355 | }; |
356 | ||
33414a01 DW |
357 | struct imsm_update_kill_array { |
358 | enum imsm_update_type type; | |
359 | int dev_idx; | |
360 | }; | |
361 | ||
aa534678 DW |
362 | struct imsm_update_rename_array { |
363 | enum imsm_update_type type; | |
364 | __u8 name[MAX_RAID_SERIAL_LEN]; | |
365 | int dev_idx; | |
366 | }; | |
367 | ||
1a64be56 | 368 | struct imsm_update_add_remove_disk { |
43dad3d6 DW |
369 | enum imsm_update_type type; |
370 | }; | |
371 | ||
88654014 LM |
372 | |
373 | static const char *_sys_dev_type[] = { | |
374 | [SYS_DEV_UNKNOWN] = "Unknown", | |
375 | [SYS_DEV_SAS] = "SAS", | |
376 | [SYS_DEV_SATA] = "SATA" | |
377 | }; | |
378 | ||
379 | const char *get_sys_dev_type(enum sys_dev_type type) | |
380 | { | |
381 | if (type >= SYS_DEV_MAX) | |
382 | type = SYS_DEV_UNKNOWN; | |
383 | ||
384 | return _sys_dev_type[type]; | |
385 | } | |
386 | ||
71204a50 | 387 | #ifndef MDASSEMBLE |
88654014 LM |
388 | static struct intel_hba * alloc_intel_hba(struct sys_dev *device) |
389 | { | |
390 | struct intel_hba *result = malloc(sizeof(*result)); | |
391 | if (result) { | |
392 | result->type = device->type; | |
393 | result->path = strdup(device->path); | |
394 | result->next = NULL; | |
395 | if (result->path && (result->pci_id = strrchr(result->path, '/')) != NULL) | |
396 | result->pci_id++; | |
397 | } | |
398 | return result; | |
399 | } | |
400 | ||
401 | static struct intel_hba * find_intel_hba(struct intel_hba *hba, struct sys_dev *device) | |
402 | { | |
403 | struct intel_hba *result=NULL; | |
404 | for (result = hba; result; result = result->next) { | |
405 | if (result->type == device->type && strcmp(result->path, device->path) == 0) | |
406 | break; | |
407 | } | |
408 | return result; | |
409 | } | |
410 | ||
411 | ||
88654014 LM |
412 | static int attach_hba_to_super(struct intel_super *super, struct sys_dev *device, |
413 | const char *devname) | |
414 | { | |
415 | struct intel_hba *hba; | |
416 | ||
417 | /* check if disk attached to Intel HBA */ | |
418 | hba = find_intel_hba(super->hba, device); | |
419 | if (hba != NULL) | |
420 | return 1; | |
421 | /* Check if HBA is already attached to super */ | |
422 | if (super->hba == NULL) { | |
423 | super->hba = alloc_intel_hba(device); | |
424 | return 1; | |
425 | } | |
426 | ||
427 | hba = super->hba; | |
428 | /* Intel metadata allows for all disks attached to the same type HBA. | |
429 | * Do not sypport odf HBA types mixing | |
430 | */ | |
431 | if (device->type != hba->type) | |
432 | return 2; | |
433 | ||
434 | while (hba->next) | |
435 | hba = hba->next; | |
436 | ||
437 | hba->next = alloc_intel_hba(device); | |
438 | return 1; | |
439 | } | |
440 | ||
441 | static struct sys_dev* find_disk_attached_hba(int fd, const char *devname) | |
442 | { | |
443 | struct sys_dev *list, *elem, *prev; | |
444 | char *disk_path; | |
445 | ||
446 | if ((list = find_intel_devices()) == NULL) | |
447 | return 0; | |
448 | ||
449 | if (fd < 0) | |
450 | disk_path = (char *) devname; | |
451 | else | |
452 | disk_path = diskfd_to_devpath(fd); | |
453 | ||
454 | if (!disk_path) { | |
455 | free_sys_dev(&list); | |
456 | return 0; | |
457 | } | |
458 | ||
459 | for (prev = NULL, elem = list; elem; prev = elem, elem = elem->next) { | |
460 | if (path_attached_to_hba(disk_path, elem->path)) { | |
461 | if (prev == NULL) | |
462 | list = list->next; | |
463 | else | |
464 | prev->next = elem->next; | |
465 | elem->next = NULL; | |
466 | if (disk_path != devname) | |
467 | free(disk_path); | |
468 | free_sys_dev(&list); | |
469 | return elem; | |
470 | } | |
471 | } | |
472 | if (disk_path != devname) | |
473 | free(disk_path); | |
474 | free_sys_dev(&list); | |
475 | ||
476 | return NULL; | |
477 | } | |
71204a50 | 478 | #endif /* MDASSEMBLE */ |
88654014 LM |
479 | |
480 | ||
cdddbdbc DW |
481 | static struct supertype *match_metadata_desc_imsm(char *arg) |
482 | { | |
483 | struct supertype *st; | |
484 | ||
485 | if (strcmp(arg, "imsm") != 0 && | |
486 | strcmp(arg, "default") != 0 | |
487 | ) | |
488 | return NULL; | |
489 | ||
490 | st = malloc(sizeof(*st)); | |
4e9d2186 AW |
491 | if (!st) |
492 | return NULL; | |
ef609477 | 493 | memset(st, 0, sizeof(*st)); |
d1d599ea | 494 | st->container_dev = NoMdDev; |
cdddbdbc DW |
495 | st->ss = &super_imsm; |
496 | st->max_devs = IMSM_MAX_DEVICES; | |
497 | st->minor_version = 0; | |
498 | st->sb = NULL; | |
499 | return st; | |
500 | } | |
501 | ||
0e600426 | 502 | #ifndef MDASSEMBLE |
cdddbdbc DW |
503 | static __u8 *get_imsm_version(struct imsm_super *mpb) |
504 | { | |
505 | return &mpb->sig[MPB_SIG_LEN]; | |
506 | } | |
0e600426 | 507 | #endif |
cdddbdbc | 508 | |
949c47a0 DW |
509 | /* retrieve a disk directly from the anchor when the anchor is known to be |
510 | * up-to-date, currently only at load time | |
511 | */ | |
512 | static struct imsm_disk *__get_imsm_disk(struct imsm_super *mpb, __u8 index) | |
cdddbdbc | 513 | { |
949c47a0 | 514 | if (index >= mpb->num_disks) |
cdddbdbc DW |
515 | return NULL; |
516 | return &mpb->disk[index]; | |
517 | } | |
518 | ||
95d07a2c LM |
519 | /* retrieve the disk description based on a index of the disk |
520 | * in the sub-array | |
521 | */ | |
522 | static struct dl *get_imsm_dl_disk(struct intel_super *super, __u8 index) | |
949c47a0 | 523 | { |
b9f594fe DW |
524 | struct dl *d; |
525 | ||
526 | for (d = super->disks; d; d = d->next) | |
527 | if (d->index == index) | |
95d07a2c LM |
528 | return d; |
529 | ||
530 | return NULL; | |
531 | } | |
532 | /* retrieve a disk from the parsed metadata */ | |
533 | static struct imsm_disk *get_imsm_disk(struct intel_super *super, __u8 index) | |
534 | { | |
535 | struct dl *dl; | |
536 | ||
537 | dl = get_imsm_dl_disk(super, index); | |
538 | if (dl) | |
539 | return &dl->disk; | |
540 | ||
b9f594fe | 541 | return NULL; |
949c47a0 DW |
542 | } |
543 | ||
544 | /* generate a checksum directly from the anchor when the anchor is known to be | |
545 | * up-to-date, currently only at load or write_super after coalescing | |
546 | */ | |
547 | static __u32 __gen_imsm_checksum(struct imsm_super *mpb) | |
cdddbdbc DW |
548 | { |
549 | __u32 end = mpb->mpb_size / sizeof(end); | |
550 | __u32 *p = (__u32 *) mpb; | |
551 | __u32 sum = 0; | |
552 | ||
97f734fd N |
553 | while (end--) { |
554 | sum += __le32_to_cpu(*p); | |
555 | p++; | |
556 | } | |
cdddbdbc DW |
557 | |
558 | return sum - __le32_to_cpu(mpb->check_sum); | |
559 | } | |
560 | ||
a965f303 DW |
561 | static size_t sizeof_imsm_map(struct imsm_map *map) |
562 | { | |
563 | return sizeof(struct imsm_map) + sizeof(__u32) * (map->num_members - 1); | |
564 | } | |
565 | ||
566 | struct imsm_map *get_imsm_map(struct imsm_dev *dev, int second_map) | |
cdddbdbc | 567 | { |
5e7b0330 AK |
568 | /* A device can have 2 maps if it is in the middle of a migration. |
569 | * If second_map is: | |
570 | * 0 - we return the first map | |
571 | * 1 - we return the second map if it exists, else NULL | |
572 | * -1 - we return the second map if it exists, else the first | |
573 | */ | |
a965f303 DW |
574 | struct imsm_map *map = &dev->vol.map[0]; |
575 | ||
5e7b0330 | 576 | if (second_map == 1 && !dev->vol.migr_state) |
a965f303 | 577 | return NULL; |
5e7b0330 AK |
578 | else if (second_map == 1 || |
579 | (second_map < 0 && dev->vol.migr_state)) { | |
a965f303 DW |
580 | void *ptr = map; |
581 | ||
582 | return ptr + sizeof_imsm_map(map); | |
583 | } else | |
584 | return map; | |
5e7b0330 | 585 | |
a965f303 | 586 | } |
cdddbdbc | 587 | |
3393c6af DW |
588 | /* return the size of the device. |
589 | * migr_state increases the returned size if map[0] were to be duplicated | |
590 | */ | |
591 | static size_t sizeof_imsm_dev(struct imsm_dev *dev, int migr_state) | |
a965f303 DW |
592 | { |
593 | size_t size = sizeof(*dev) - sizeof(struct imsm_map) + | |
594 | sizeof_imsm_map(get_imsm_map(dev, 0)); | |
cdddbdbc DW |
595 | |
596 | /* migrating means an additional map */ | |
a965f303 DW |
597 | if (dev->vol.migr_state) |
598 | size += sizeof_imsm_map(get_imsm_map(dev, 1)); | |
3393c6af DW |
599 | else if (migr_state) |
600 | size += sizeof_imsm_map(get_imsm_map(dev, 0)); | |
cdddbdbc DW |
601 | |
602 | return size; | |
603 | } | |
604 | ||
54c2c1ea DW |
605 | #ifndef MDASSEMBLE |
606 | /* retrieve disk serial number list from a metadata update */ | |
607 | static struct disk_info *get_disk_info(struct imsm_update_create_array *update) | |
608 | { | |
609 | void *u = update; | |
610 | struct disk_info *inf; | |
611 | ||
612 | inf = u + sizeof(*update) - sizeof(struct imsm_dev) + | |
613 | sizeof_imsm_dev(&update->dev, 0); | |
614 | ||
615 | return inf; | |
616 | } | |
617 | #endif | |
618 | ||
949c47a0 | 619 | static struct imsm_dev *__get_imsm_dev(struct imsm_super *mpb, __u8 index) |
cdddbdbc DW |
620 | { |
621 | int offset; | |
622 | int i; | |
623 | void *_mpb = mpb; | |
624 | ||
949c47a0 | 625 | if (index >= mpb->num_raid_devs) |
cdddbdbc DW |
626 | return NULL; |
627 | ||
628 | /* devices start after all disks */ | |
629 | offset = ((void *) &mpb->disk[mpb->num_disks]) - _mpb; | |
630 | ||
631 | for (i = 0; i <= index; i++) | |
632 | if (i == index) | |
633 | return _mpb + offset; | |
634 | else | |
3393c6af | 635 | offset += sizeof_imsm_dev(_mpb + offset, 0); |
cdddbdbc DW |
636 | |
637 | return NULL; | |
638 | } | |
639 | ||
949c47a0 DW |
640 | static struct imsm_dev *get_imsm_dev(struct intel_super *super, __u8 index) |
641 | { | |
ba2de7ba DW |
642 | struct intel_dev *dv; |
643 | ||
949c47a0 DW |
644 | if (index >= super->anchor->num_raid_devs) |
645 | return NULL; | |
ba2de7ba DW |
646 | for (dv = super->devlist; dv; dv = dv->next) |
647 | if (dv->index == index) | |
648 | return dv->dev; | |
649 | return NULL; | |
949c47a0 DW |
650 | } |
651 | ||
98130f40 AK |
652 | /* |
653 | * for second_map: | |
654 | * == 0 get first map | |
655 | * == 1 get second map | |
656 | * == -1 than get map according to the current migr_state | |
657 | */ | |
658 | static __u32 get_imsm_ord_tbl_ent(struct imsm_dev *dev, | |
659 | int slot, | |
660 | int second_map) | |
7eef0453 DW |
661 | { |
662 | struct imsm_map *map; | |
663 | ||
5e7b0330 | 664 | map = get_imsm_map(dev, second_map); |
7eef0453 | 665 | |
ff077194 DW |
666 | /* top byte identifies disk under rebuild */ |
667 | return __le32_to_cpu(map->disk_ord_tbl[slot]); | |
668 | } | |
669 | ||
670 | #define ord_to_idx(ord) (((ord) << 8) >> 8) | |
98130f40 | 671 | static __u32 get_imsm_disk_idx(struct imsm_dev *dev, int slot, int second_map) |
ff077194 | 672 | { |
98130f40 | 673 | __u32 ord = get_imsm_ord_tbl_ent(dev, slot, second_map); |
ff077194 DW |
674 | |
675 | return ord_to_idx(ord); | |
7eef0453 DW |
676 | } |
677 | ||
be73972f DW |
678 | static void set_imsm_ord_tbl_ent(struct imsm_map *map, int slot, __u32 ord) |
679 | { | |
680 | map->disk_ord_tbl[slot] = __cpu_to_le32(ord); | |
681 | } | |
682 | ||
f21e18ca | 683 | static int get_imsm_disk_slot(struct imsm_map *map, unsigned idx) |
620b1713 DW |
684 | { |
685 | int slot; | |
686 | __u32 ord; | |
687 | ||
688 | for (slot = 0; slot < map->num_members; slot++) { | |
689 | ord = __le32_to_cpu(map->disk_ord_tbl[slot]); | |
690 | if (ord_to_idx(ord) == idx) | |
691 | return slot; | |
692 | } | |
693 | ||
694 | return -1; | |
695 | } | |
696 | ||
cdddbdbc DW |
697 | static int get_imsm_raid_level(struct imsm_map *map) |
698 | { | |
699 | if (map->raid_level == 1) { | |
700 | if (map->num_members == 2) | |
701 | return 1; | |
702 | else | |
703 | return 10; | |
704 | } | |
705 | ||
706 | return map->raid_level; | |
707 | } | |
708 | ||
c2c087e6 DW |
709 | static int cmp_extent(const void *av, const void *bv) |
710 | { | |
711 | const struct extent *a = av; | |
712 | const struct extent *b = bv; | |
713 | if (a->start < b->start) | |
714 | return -1; | |
715 | if (a->start > b->start) | |
716 | return 1; | |
717 | return 0; | |
718 | } | |
719 | ||
0dcecb2e | 720 | static int count_memberships(struct dl *dl, struct intel_super *super) |
c2c087e6 | 721 | { |
c2c087e6 | 722 | int memberships = 0; |
620b1713 | 723 | int i; |
c2c087e6 | 724 | |
949c47a0 DW |
725 | for (i = 0; i < super->anchor->num_raid_devs; i++) { |
726 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
a965f303 | 727 | struct imsm_map *map = get_imsm_map(dev, 0); |
c2c087e6 | 728 | |
620b1713 DW |
729 | if (get_imsm_disk_slot(map, dl->index) >= 0) |
730 | memberships++; | |
c2c087e6 | 731 | } |
0dcecb2e DW |
732 | |
733 | return memberships; | |
734 | } | |
735 | ||
736 | static struct extent *get_extents(struct intel_super *super, struct dl *dl) | |
737 | { | |
738 | /* find a list of used extents on the given physical device */ | |
739 | struct extent *rv, *e; | |
620b1713 | 740 | int i; |
0dcecb2e DW |
741 | int memberships = count_memberships(dl, super); |
742 | __u32 reservation = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
743 | ||
c2c087e6 DW |
744 | rv = malloc(sizeof(struct extent) * (memberships + 1)); |
745 | if (!rv) | |
746 | return NULL; | |
747 | e = rv; | |
748 | ||
949c47a0 DW |
749 | for (i = 0; i < super->anchor->num_raid_devs; i++) { |
750 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
a965f303 | 751 | struct imsm_map *map = get_imsm_map(dev, 0); |
c2c087e6 | 752 | |
620b1713 DW |
753 | if (get_imsm_disk_slot(map, dl->index) >= 0) { |
754 | e->start = __le32_to_cpu(map->pba_of_lba0); | |
755 | e->size = __le32_to_cpu(map->blocks_per_member); | |
756 | e++; | |
c2c087e6 DW |
757 | } |
758 | } | |
759 | qsort(rv, memberships, sizeof(*rv), cmp_extent); | |
760 | ||
14e8215b DW |
761 | /* determine the start of the metadata |
762 | * when no raid devices are defined use the default | |
763 | * ...otherwise allow the metadata to truncate the value | |
764 | * as is the case with older versions of imsm | |
765 | */ | |
766 | if (memberships) { | |
767 | struct extent *last = &rv[memberships - 1]; | |
768 | __u32 remainder; | |
769 | ||
770 | remainder = __le32_to_cpu(dl->disk.total_blocks) - | |
771 | (last->start + last->size); | |
dda5855f DW |
772 | /* round down to 1k block to satisfy precision of the kernel |
773 | * 'size' interface | |
774 | */ | |
775 | remainder &= ~1UL; | |
776 | /* make sure remainder is still sane */ | |
f21e18ca | 777 | if (remainder < (unsigned)ROUND_UP(super->len, 512) >> 9) |
dda5855f | 778 | remainder = ROUND_UP(super->len, 512) >> 9; |
14e8215b DW |
779 | if (reservation > remainder) |
780 | reservation = remainder; | |
781 | } | |
782 | e->start = __le32_to_cpu(dl->disk.total_blocks) - reservation; | |
c2c087e6 DW |
783 | e->size = 0; |
784 | return rv; | |
785 | } | |
786 | ||
14e8215b DW |
787 | /* try to determine how much space is reserved for metadata from |
788 | * the last get_extents() entry, otherwise fallback to the | |
789 | * default | |
790 | */ | |
791 | static __u32 imsm_reserved_sectors(struct intel_super *super, struct dl *dl) | |
792 | { | |
793 | struct extent *e; | |
794 | int i; | |
795 | __u32 rv; | |
796 | ||
797 | /* for spares just return a minimal reservation which will grow | |
798 | * once the spare is picked up by an array | |
799 | */ | |
800 | if (dl->index == -1) | |
801 | return MPB_SECTOR_CNT; | |
802 | ||
803 | e = get_extents(super, dl); | |
804 | if (!e) | |
805 | return MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
806 | ||
807 | /* scroll to last entry */ | |
808 | for (i = 0; e[i].size; i++) | |
809 | continue; | |
810 | ||
811 | rv = __le32_to_cpu(dl->disk.total_blocks) - e[i].start; | |
812 | ||
813 | free(e); | |
814 | ||
815 | return rv; | |
816 | } | |
817 | ||
25ed7e59 DW |
818 | static int is_spare(struct imsm_disk *disk) |
819 | { | |
820 | return (disk->status & SPARE_DISK) == SPARE_DISK; | |
821 | } | |
822 | ||
823 | static int is_configured(struct imsm_disk *disk) | |
824 | { | |
825 | return (disk->status & CONFIGURED_DISK) == CONFIGURED_DISK; | |
826 | } | |
827 | ||
828 | static int is_failed(struct imsm_disk *disk) | |
829 | { | |
830 | return (disk->status & FAILED_DISK) == FAILED_DISK; | |
831 | } | |
832 | ||
80e7f8c3 AC |
833 | /* Return minimum size of a spare that can be used in this array*/ |
834 | static unsigned long long min_acceptable_spare_size_imsm(struct supertype *st) | |
835 | { | |
836 | struct intel_super *super = st->sb; | |
837 | struct dl *dl; | |
838 | struct extent *e; | |
839 | int i; | |
840 | unsigned long long rv = 0; | |
841 | ||
842 | if (!super) | |
843 | return rv; | |
844 | /* find first active disk in array */ | |
845 | dl = super->disks; | |
846 | while (dl && (is_failed(&dl->disk) || dl->index == -1)) | |
847 | dl = dl->next; | |
848 | if (!dl) | |
849 | return rv; | |
850 | /* find last lba used by subarrays */ | |
851 | e = get_extents(super, dl); | |
852 | if (!e) | |
853 | return rv; | |
854 | for (i = 0; e[i].size; i++) | |
855 | continue; | |
856 | if (i > 0) | |
857 | rv = e[i-1].start + e[i-1].size; | |
858 | free(e); | |
859 | /* add the amount of space needed for metadata */ | |
860 | rv = rv + MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
861 | return rv * 512; | |
862 | } | |
863 | ||
1799c9e8 | 864 | #ifndef MDASSEMBLE |
1e5c6983 DW |
865 | static __u64 blocks_per_migr_unit(struct imsm_dev *dev); |
866 | ||
44470971 | 867 | static void print_imsm_dev(struct imsm_dev *dev, char *uuid, int disk_idx) |
cdddbdbc DW |
868 | { |
869 | __u64 sz; | |
0d80bb2f | 870 | int slot, i; |
a965f303 | 871 | struct imsm_map *map = get_imsm_map(dev, 0); |
dd8bcb3b | 872 | struct imsm_map *map2 = get_imsm_map(dev, 1); |
b10b37b8 | 873 | __u32 ord; |
cdddbdbc DW |
874 | |
875 | printf("\n"); | |
1e7bc0ed | 876 | printf("[%.16s]:\n", dev->volume); |
44470971 | 877 | printf(" UUID : %s\n", uuid); |
dd8bcb3b AK |
878 | printf(" RAID Level : %d", get_imsm_raid_level(map)); |
879 | if (map2) | |
880 | printf(" <-- %d", get_imsm_raid_level(map2)); | |
881 | printf("\n"); | |
882 | printf(" Members : %d", map->num_members); | |
883 | if (map2) | |
884 | printf(" <-- %d", map2->num_members); | |
885 | printf("\n"); | |
0d80bb2f DW |
886 | printf(" Slots : ["); |
887 | for (i = 0; i < map->num_members; i++) { | |
dd8bcb3b | 888 | ord = get_imsm_ord_tbl_ent(dev, i, 0); |
0d80bb2f DW |
889 | printf("%s", ord & IMSM_ORD_REBUILD ? "_" : "U"); |
890 | } | |
dd8bcb3b AK |
891 | printf("]"); |
892 | if (map2) { | |
893 | printf(" <-- ["); | |
894 | for (i = 0; i < map2->num_members; i++) { | |
895 | ord = get_imsm_ord_tbl_ent(dev, i, 1); | |
896 | printf("%s", ord & IMSM_ORD_REBUILD ? "_" : "U"); | |
897 | } | |
898 | printf("]"); | |
899 | } | |
900 | printf("\n"); | |
620b1713 DW |
901 | slot = get_imsm_disk_slot(map, disk_idx); |
902 | if (slot >= 0) { | |
98130f40 | 903 | ord = get_imsm_ord_tbl_ent(dev, slot, -1); |
b10b37b8 DW |
904 | printf(" This Slot : %d%s\n", slot, |
905 | ord & IMSM_ORD_REBUILD ? " (out-of-sync)" : ""); | |
906 | } else | |
cdddbdbc DW |
907 | printf(" This Slot : ?\n"); |
908 | sz = __le32_to_cpu(dev->size_high); | |
909 | sz <<= 32; | |
910 | sz += __le32_to_cpu(dev->size_low); | |
911 | printf(" Array Size : %llu%s\n", (unsigned long long)sz, | |
912 | human_size(sz * 512)); | |
913 | sz = __le32_to_cpu(map->blocks_per_member); | |
914 | printf(" Per Dev Size : %llu%s\n", (unsigned long long)sz, | |
915 | human_size(sz * 512)); | |
916 | printf(" Sector Offset : %u\n", | |
917 | __le32_to_cpu(map->pba_of_lba0)); | |
918 | printf(" Num Stripes : %u\n", | |
919 | __le32_to_cpu(map->num_data_stripes)); | |
dd8bcb3b | 920 | printf(" Chunk Size : %u KiB", |
cdddbdbc | 921 | __le16_to_cpu(map->blocks_per_strip) / 2); |
dd8bcb3b AK |
922 | if (map2) |
923 | printf(" <-- %u KiB", | |
924 | __le16_to_cpu(map2->blocks_per_strip) / 2); | |
925 | printf("\n"); | |
cdddbdbc | 926 | printf(" Reserved : %d\n", __le32_to_cpu(dev->reserved_blocks)); |
8655a7b1 | 927 | printf(" Migrate State : "); |
1484e727 DW |
928 | if (dev->vol.migr_state) { |
929 | if (migr_type(dev) == MIGR_INIT) | |
8655a7b1 | 930 | printf("initialize\n"); |
1484e727 | 931 | else if (migr_type(dev) == MIGR_REBUILD) |
8655a7b1 | 932 | printf("rebuild\n"); |
1484e727 | 933 | else if (migr_type(dev) == MIGR_VERIFY) |
8655a7b1 | 934 | printf("check\n"); |
1484e727 | 935 | else if (migr_type(dev) == MIGR_GEN_MIGR) |
8655a7b1 | 936 | printf("general migration\n"); |
1484e727 | 937 | else if (migr_type(dev) == MIGR_STATE_CHANGE) |
8655a7b1 | 938 | printf("state change\n"); |
1484e727 | 939 | else if (migr_type(dev) == MIGR_REPAIR) |
8655a7b1 | 940 | printf("repair\n"); |
1484e727 | 941 | else |
8655a7b1 DW |
942 | printf("<unknown:%d>\n", migr_type(dev)); |
943 | } else | |
944 | printf("idle\n"); | |
3393c6af DW |
945 | printf(" Map State : %s", map_state_str[map->map_state]); |
946 | if (dev->vol.migr_state) { | |
947 | struct imsm_map *map = get_imsm_map(dev, 1); | |
1e5c6983 | 948 | |
b10b37b8 | 949 | printf(" <-- %s", map_state_str[map->map_state]); |
1e5c6983 DW |
950 | printf("\n Checkpoint : %u (%llu)", |
951 | __le32_to_cpu(dev->vol.curr_migr_unit), | |
94fcb80a | 952 | (unsigned long long)blocks_per_migr_unit(dev)); |
3393c6af DW |
953 | } |
954 | printf("\n"); | |
cdddbdbc | 955 | printf(" Dirty State : %s\n", dev->vol.dirty ? "dirty" : "clean"); |
cdddbdbc DW |
956 | } |
957 | ||
14e8215b | 958 | static void print_imsm_disk(struct imsm_super *mpb, int index, __u32 reserved) |
cdddbdbc | 959 | { |
949c47a0 | 960 | struct imsm_disk *disk = __get_imsm_disk(mpb, index); |
1f24f035 | 961 | char str[MAX_RAID_SERIAL_LEN + 1]; |
cdddbdbc DW |
962 | __u64 sz; |
963 | ||
d362da3d | 964 | if (index < 0 || !disk) |
e9d82038 DW |
965 | return; |
966 | ||
cdddbdbc | 967 | printf("\n"); |
1f24f035 | 968 | snprintf(str, MAX_RAID_SERIAL_LEN + 1, "%s", disk->serial); |
cdddbdbc | 969 | printf(" Disk%02d Serial : %s\n", index, str); |
25ed7e59 DW |
970 | printf(" State :%s%s%s\n", is_spare(disk) ? " spare" : "", |
971 | is_configured(disk) ? " active" : "", | |
972 | is_failed(disk) ? " failed" : ""); | |
cdddbdbc | 973 | printf(" Id : %08x\n", __le32_to_cpu(disk->scsi_id)); |
14e8215b | 974 | sz = __le32_to_cpu(disk->total_blocks) - reserved; |
cdddbdbc DW |
975 | printf(" Usable Size : %llu%s\n", (unsigned long long)sz, |
976 | human_size(sz * 512)); | |
977 | } | |
978 | ||
a5d85af7 | 979 | static void getinfo_super_imsm(struct supertype *st, struct mdinfo *info, char *map); |
44470971 | 980 | |
cdddbdbc DW |
981 | static void examine_super_imsm(struct supertype *st, char *homehost) |
982 | { | |
983 | struct intel_super *super = st->sb; | |
949c47a0 | 984 | struct imsm_super *mpb = super->anchor; |
cdddbdbc DW |
985 | char str[MAX_SIGNATURE_LENGTH]; |
986 | int i; | |
27fd6274 DW |
987 | struct mdinfo info; |
988 | char nbuf[64]; | |
cdddbdbc | 989 | __u32 sum; |
14e8215b | 990 | __u32 reserved = imsm_reserved_sectors(super, super->disks); |
94827db3 | 991 | struct dl *dl; |
27fd6274 | 992 | |
cdddbdbc DW |
993 | snprintf(str, MPB_SIG_LEN, "%s", mpb->sig); |
994 | printf(" Magic : %s\n", str); | |
995 | snprintf(str, strlen(MPB_VERSION_RAID0), "%s", get_imsm_version(mpb)); | |
996 | printf(" Version : %s\n", get_imsm_version(mpb)); | |
148acb7b | 997 | printf(" Orig Family : %08x\n", __le32_to_cpu(mpb->orig_family_num)); |
cdddbdbc DW |
998 | printf(" Family : %08x\n", __le32_to_cpu(mpb->family_num)); |
999 | printf(" Generation : %08x\n", __le32_to_cpu(mpb->generation_num)); | |
a5d85af7 | 1000 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1001 | fname_from_uuid(st, &info, nbuf, ':'); |
27fd6274 | 1002 | printf(" UUID : %s\n", nbuf + 5); |
cdddbdbc DW |
1003 | sum = __le32_to_cpu(mpb->check_sum); |
1004 | printf(" Checksum : %08x %s\n", sum, | |
949c47a0 | 1005 | __gen_imsm_checksum(mpb) == sum ? "correct" : "incorrect"); |
87eb16df | 1006 | printf(" MPB Sectors : %d\n", mpb_sectors(mpb)); |
cdddbdbc DW |
1007 | printf(" Disks : %d\n", mpb->num_disks); |
1008 | printf(" RAID Devices : %d\n", mpb->num_raid_devs); | |
14e8215b | 1009 | print_imsm_disk(mpb, super->disks->index, reserved); |
604b746f JD |
1010 | if (super->bbm_log) { |
1011 | struct bbm_log *log = super->bbm_log; | |
1012 | ||
1013 | printf("\n"); | |
1014 | printf("Bad Block Management Log:\n"); | |
1015 | printf(" Log Size : %d\n", __le32_to_cpu(mpb->bbm_log_size)); | |
1016 | printf(" Signature : %x\n", __le32_to_cpu(log->signature)); | |
1017 | printf(" Entry Count : %d\n", __le32_to_cpu(log->entry_count)); | |
1018 | printf(" Spare Blocks : %d\n", __le32_to_cpu(log->reserved_spare_block_count)); | |
13a3b65d N |
1019 | printf(" First Spare : %llx\n", |
1020 | (unsigned long long) __le64_to_cpu(log->first_spare_lba)); | |
604b746f | 1021 | } |
44470971 DW |
1022 | for (i = 0; i < mpb->num_raid_devs; i++) { |
1023 | struct mdinfo info; | |
1024 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
1025 | ||
1026 | super->current_vol = i; | |
a5d85af7 | 1027 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1028 | fname_from_uuid(st, &info, nbuf, ':'); |
44470971 DW |
1029 | print_imsm_dev(dev, nbuf + 5, super->disks->index); |
1030 | } | |
cdddbdbc DW |
1031 | for (i = 0; i < mpb->num_disks; i++) { |
1032 | if (i == super->disks->index) | |
1033 | continue; | |
14e8215b | 1034 | print_imsm_disk(mpb, i, reserved); |
cdddbdbc | 1035 | } |
94827db3 N |
1036 | for (dl = super->disks ; dl; dl = dl->next) { |
1037 | struct imsm_disk *disk; | |
1038 | char str[MAX_RAID_SERIAL_LEN + 1]; | |
1039 | __u64 sz; | |
1040 | ||
1041 | if (dl->index >= 0) | |
1042 | continue; | |
1043 | ||
1044 | disk = &dl->disk; | |
1045 | printf("\n"); | |
1046 | snprintf(str, MAX_RAID_SERIAL_LEN + 1, "%s", disk->serial); | |
1047 | printf(" Disk Serial : %s\n", str); | |
1048 | printf(" State :%s%s%s\n", is_spare(disk) ? " spare" : "", | |
1049 | is_configured(disk) ? " active" : "", | |
1050 | is_failed(disk) ? " failed" : ""); | |
1051 | printf(" Id : %08x\n", __le32_to_cpu(disk->scsi_id)); | |
1052 | sz = __le32_to_cpu(disk->total_blocks) - reserved; | |
1053 | printf(" Usable Size : %llu%s\n", (unsigned long long)sz, | |
1054 | human_size(sz * 512)); | |
1055 | } | |
cdddbdbc DW |
1056 | } |
1057 | ||
061f2c6a | 1058 | static void brief_examine_super_imsm(struct supertype *st, int verbose) |
cdddbdbc | 1059 | { |
27fd6274 | 1060 | /* We just write a generic IMSM ARRAY entry */ |
ff54de6e N |
1061 | struct mdinfo info; |
1062 | char nbuf[64]; | |
1e7bc0ed | 1063 | struct intel_super *super = st->sb; |
1e7bc0ed | 1064 | |
0d5a423f DW |
1065 | if (!super->anchor->num_raid_devs) { |
1066 | printf("ARRAY metadata=imsm\n"); | |
1e7bc0ed | 1067 | return; |
0d5a423f | 1068 | } |
ff54de6e | 1069 | |
a5d85af7 | 1070 | getinfo_super_imsm(st, &info, NULL); |
4737ae25 N |
1071 | fname_from_uuid(st, &info, nbuf, ':'); |
1072 | printf("ARRAY metadata=imsm UUID=%s\n", nbuf + 5); | |
1073 | } | |
1074 | ||
1075 | static void brief_examine_subarrays_imsm(struct supertype *st, int verbose) | |
1076 | { | |
1077 | /* We just write a generic IMSM ARRAY entry */ | |
1078 | struct mdinfo info; | |
1079 | char nbuf[64]; | |
1080 | char nbuf1[64]; | |
1081 | struct intel_super *super = st->sb; | |
1082 | int i; | |
1083 | ||
1084 | if (!super->anchor->num_raid_devs) | |
1085 | return; | |
1086 | ||
a5d85af7 | 1087 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1088 | fname_from_uuid(st, &info, nbuf, ':'); |
1e7bc0ed DW |
1089 | for (i = 0; i < super->anchor->num_raid_devs; i++) { |
1090 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
1091 | ||
1092 | super->current_vol = i; | |
a5d85af7 | 1093 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1094 | fname_from_uuid(st, &info, nbuf1, ':'); |
1124b3cf | 1095 | printf("ARRAY /dev/md/%.16s container=%s member=%d UUID=%s\n", |
cf8de691 | 1096 | dev->volume, nbuf + 5, i, nbuf1 + 5); |
1e7bc0ed | 1097 | } |
cdddbdbc DW |
1098 | } |
1099 | ||
9d84c8ea DW |
1100 | static void export_examine_super_imsm(struct supertype *st) |
1101 | { | |
1102 | struct intel_super *super = st->sb; | |
1103 | struct imsm_super *mpb = super->anchor; | |
1104 | struct mdinfo info; | |
1105 | char nbuf[64]; | |
1106 | ||
a5d85af7 | 1107 | getinfo_super_imsm(st, &info, NULL); |
9d84c8ea DW |
1108 | fname_from_uuid(st, &info, nbuf, ':'); |
1109 | printf("MD_METADATA=imsm\n"); | |
1110 | printf("MD_LEVEL=container\n"); | |
1111 | printf("MD_UUID=%s\n", nbuf+5); | |
1112 | printf("MD_DEVICES=%u\n", mpb->num_disks); | |
1113 | } | |
1114 | ||
cdddbdbc DW |
1115 | static void detail_super_imsm(struct supertype *st, char *homehost) |
1116 | { | |
3ebe00a1 DW |
1117 | struct mdinfo info; |
1118 | char nbuf[64]; | |
1119 | ||
a5d85af7 | 1120 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1121 | fname_from_uuid(st, &info, nbuf, ':'); |
3ebe00a1 | 1122 | printf("\n UUID : %s\n", nbuf + 5); |
cdddbdbc DW |
1123 | } |
1124 | ||
1125 | static void brief_detail_super_imsm(struct supertype *st) | |
1126 | { | |
ff54de6e N |
1127 | struct mdinfo info; |
1128 | char nbuf[64]; | |
a5d85af7 | 1129 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1130 | fname_from_uuid(st, &info, nbuf, ':'); |
ff54de6e | 1131 | printf(" UUID=%s", nbuf + 5); |
cdddbdbc | 1132 | } |
d665cc31 DW |
1133 | |
1134 | static int imsm_read_serial(int fd, char *devname, __u8 *serial); | |
1135 | static void fd2devname(int fd, char *name); | |
1136 | ||
120dc887 | 1137 | static int ahci_enumerate_ports(const char *hba_path, int port_count, int host_base, int verbose) |
d665cc31 | 1138 | { |
120dc887 LM |
1139 | /* dump an unsorted list of devices attached to AHCI Intel storage |
1140 | * controller, as well as non-connected ports | |
d665cc31 DW |
1141 | */ |
1142 | int hba_len = strlen(hba_path) + 1; | |
1143 | struct dirent *ent; | |
1144 | DIR *dir; | |
1145 | char *path = NULL; | |
1146 | int err = 0; | |
1147 | unsigned long port_mask = (1 << port_count) - 1; | |
1148 | ||
f21e18ca | 1149 | if (port_count > (int)sizeof(port_mask) * 8) { |
d665cc31 DW |
1150 | if (verbose) |
1151 | fprintf(stderr, Name ": port_count %d out of range\n", port_count); | |
1152 | return 2; | |
1153 | } | |
1154 | ||
1155 | /* scroll through /sys/dev/block looking for devices attached to | |
1156 | * this hba | |
1157 | */ | |
1158 | dir = opendir("/sys/dev/block"); | |
1159 | for (ent = dir ? readdir(dir) : NULL; ent; ent = readdir(dir)) { | |
1160 | int fd; | |
1161 | char model[64]; | |
1162 | char vendor[64]; | |
1163 | char buf[1024]; | |
1164 | int major, minor; | |
1165 | char *device; | |
1166 | char *c; | |
1167 | int port; | |
1168 | int type; | |
1169 | ||
1170 | if (sscanf(ent->d_name, "%d:%d", &major, &minor) != 2) | |
1171 | continue; | |
1172 | path = devt_to_devpath(makedev(major, minor)); | |
1173 | if (!path) | |
1174 | continue; | |
1175 | if (!path_attached_to_hba(path, hba_path)) { | |
1176 | free(path); | |
1177 | path = NULL; | |
1178 | continue; | |
1179 | } | |
1180 | ||
1181 | /* retrieve the scsi device type */ | |
1182 | if (asprintf(&device, "/sys/dev/block/%d:%d/device/xxxxxxx", major, minor) < 0) { | |
1183 | if (verbose) | |
1184 | fprintf(stderr, Name ": failed to allocate 'device'\n"); | |
1185 | err = 2; | |
1186 | break; | |
1187 | } | |
1188 | sprintf(device, "/sys/dev/block/%d:%d/device/type", major, minor); | |
1189 | if (load_sys(device, buf) != 0) { | |
1190 | if (verbose) | |
1191 | fprintf(stderr, Name ": failed to read device type for %s\n", | |
1192 | path); | |
1193 | err = 2; | |
1194 | free(device); | |
1195 | break; | |
1196 | } | |
1197 | type = strtoul(buf, NULL, 10); | |
1198 | ||
1199 | /* if it's not a disk print the vendor and model */ | |
1200 | if (!(type == 0 || type == 7 || type == 14)) { | |
1201 | vendor[0] = '\0'; | |
1202 | model[0] = '\0'; | |
1203 | sprintf(device, "/sys/dev/block/%d:%d/device/vendor", major, minor); | |
1204 | if (load_sys(device, buf) == 0) { | |
1205 | strncpy(vendor, buf, sizeof(vendor)); | |
1206 | vendor[sizeof(vendor) - 1] = '\0'; | |
1207 | c = (char *) &vendor[sizeof(vendor) - 1]; | |
1208 | while (isspace(*c) || *c == '\0') | |
1209 | *c-- = '\0'; | |
1210 | ||
1211 | } | |
1212 | sprintf(device, "/sys/dev/block/%d:%d/device/model", major, minor); | |
1213 | if (load_sys(device, buf) == 0) { | |
1214 | strncpy(model, buf, sizeof(model)); | |
1215 | model[sizeof(model) - 1] = '\0'; | |
1216 | c = (char *) &model[sizeof(model) - 1]; | |
1217 | while (isspace(*c) || *c == '\0') | |
1218 | *c-- = '\0'; | |
1219 | } | |
1220 | ||
1221 | if (vendor[0] && model[0]) | |
1222 | sprintf(buf, "%.64s %.64s", vendor, model); | |
1223 | else | |
1224 | switch (type) { /* numbers from hald/linux/device.c */ | |
1225 | case 1: sprintf(buf, "tape"); break; | |
1226 | case 2: sprintf(buf, "printer"); break; | |
1227 | case 3: sprintf(buf, "processor"); break; | |
1228 | case 4: | |
1229 | case 5: sprintf(buf, "cdrom"); break; | |
1230 | case 6: sprintf(buf, "scanner"); break; | |
1231 | case 8: sprintf(buf, "media_changer"); break; | |
1232 | case 9: sprintf(buf, "comm"); break; | |
1233 | case 12: sprintf(buf, "raid"); break; | |
1234 | default: sprintf(buf, "unknown"); | |
1235 | } | |
1236 | } else | |
1237 | buf[0] = '\0'; | |
1238 | free(device); | |
1239 | ||
1240 | /* chop device path to 'host%d' and calculate the port number */ | |
1241 | c = strchr(&path[hba_len], '/'); | |
4e5e717d AW |
1242 | if (!c) { |
1243 | if (verbose) | |
1244 | fprintf(stderr, Name ": %s - invalid path name\n", path + hba_len); | |
1245 | err = 2; | |
1246 | break; | |
1247 | } | |
d665cc31 DW |
1248 | *c = '\0'; |
1249 | if (sscanf(&path[hba_len], "host%d", &port) == 1) | |
1250 | port -= host_base; | |
1251 | else { | |
1252 | if (verbose) { | |
1253 | *c = '/'; /* repair the full string */ | |
1254 | fprintf(stderr, Name ": failed to determine port number for %s\n", | |
1255 | path); | |
1256 | } | |
1257 | err = 2; | |
1258 | break; | |
1259 | } | |
1260 | ||
1261 | /* mark this port as used */ | |
1262 | port_mask &= ~(1 << port); | |
1263 | ||
1264 | /* print out the device information */ | |
1265 | if (buf[0]) { | |
1266 | printf(" Port%d : - non-disk device (%s) -\n", port, buf); | |
1267 | continue; | |
1268 | } | |
1269 | ||
1270 | fd = dev_open(ent->d_name, O_RDONLY); | |
1271 | if (fd < 0) | |
1272 | printf(" Port%d : - disk info unavailable -\n", port); | |
1273 | else { | |
1274 | fd2devname(fd, buf); | |
1275 | printf(" Port%d : %s", port, buf); | |
1276 | if (imsm_read_serial(fd, NULL, (__u8 *) buf) == 0) | |
1277 | printf(" (%s)\n", buf); | |
1278 | else | |
1279 | printf("()\n"); | |
1280 | } | |
1281 | close(fd); | |
1282 | free(path); | |
1283 | path = NULL; | |
1284 | } | |
1285 | if (path) | |
1286 | free(path); | |
1287 | if (dir) | |
1288 | closedir(dir); | |
1289 | if (err == 0) { | |
1290 | int i; | |
1291 | ||
1292 | for (i = 0; i < port_count; i++) | |
1293 | if (port_mask & (1 << i)) | |
1294 | printf(" Port%d : - no device attached -\n", i); | |
1295 | } | |
1296 | ||
1297 | return err; | |
1298 | } | |
1299 | ||
120dc887 | 1300 | |
155cbb4c | 1301 | |
120dc887 LM |
1302 | static void print_found_intel_controllers(struct sys_dev *elem) |
1303 | { | |
1304 | for (; elem; elem = elem->next) { | |
1305 | fprintf(stderr, Name ": found Intel(R) "); | |
1306 | if (elem->type == SYS_DEV_SATA) | |
1307 | fprintf(stderr, "SATA "); | |
155cbb4c LM |
1308 | else if (elem->type == SYS_DEV_SAS) |
1309 | fprintf(stderr, "SAS "); | |
120dc887 LM |
1310 | fprintf(stderr, "RAID controller"); |
1311 | if (elem->pci_id) | |
1312 | fprintf(stderr, " at %s", elem->pci_id); | |
1313 | fprintf(stderr, ".\n"); | |
1314 | } | |
1315 | fflush(stderr); | |
1316 | } | |
1317 | ||
120dc887 LM |
1318 | static int ahci_get_port_count(const char *hba_path, int *port_count) |
1319 | { | |
1320 | struct dirent *ent; | |
1321 | DIR *dir; | |
1322 | int host_base = -1; | |
1323 | ||
1324 | *port_count = 0; | |
1325 | if ((dir = opendir(hba_path)) == NULL) | |
1326 | return -1; | |
1327 | ||
1328 | for (ent = readdir(dir); ent; ent = readdir(dir)) { | |
1329 | int host; | |
1330 | ||
1331 | if (sscanf(ent->d_name, "host%d", &host) != 1) | |
1332 | continue; | |
1333 | if (*port_count == 0) | |
1334 | host_base = host; | |
1335 | else if (host < host_base) | |
1336 | host_base = host; | |
1337 | ||
1338 | if (host + 1 > *port_count + host_base) | |
1339 | *port_count = host + 1 - host_base; | |
1340 | } | |
1341 | closedir(dir); | |
1342 | return host_base; | |
1343 | } | |
1344 | ||
5615172f | 1345 | static int detail_platform_imsm(int verbose, int enumerate_only) |
d665cc31 DW |
1346 | { |
1347 | /* There are two components to imsm platform support, the ahci SATA | |
1348 | * controller and the option-rom. To find the SATA controller we | |
1349 | * simply look in /sys/bus/pci/drivers/ahci to see if an ahci | |
1350 | * controller with the Intel vendor id is present. This approach | |
1351 | * allows mdadm to leverage the kernel's ahci detection logic, with the | |
1352 | * caveat that if ahci.ko is not loaded mdadm will not be able to | |
1353 | * detect platform raid capabilities. The option-rom resides in a | |
1354 | * platform "Adapter ROM". We scan for its signature to retrieve the | |
1355 | * platform capabilities. If raid support is disabled in the BIOS the | |
1356 | * option-rom capability structure will not be available. | |
1357 | */ | |
1358 | const struct imsm_orom *orom; | |
1359 | struct sys_dev *list, *hba; | |
d665cc31 DW |
1360 | int host_base = 0; |
1361 | int port_count = 0; | |
120dc887 | 1362 | int result=0; |
d665cc31 | 1363 | |
5615172f DW |
1364 | if (enumerate_only) { |
1365 | if (check_env("IMSM_NO_PLATFORM") || find_imsm_orom()) | |
1366 | return 0; | |
1367 | return 2; | |
1368 | } | |
1369 | ||
155cbb4c LM |
1370 | list = find_intel_devices(); |
1371 | if (!list) { | |
d665cc31 | 1372 | if (verbose) |
155cbb4c LM |
1373 | fprintf(stderr, Name ": no active Intel(R) RAID " |
1374 | "controller found.\n"); | |
d665cc31 DW |
1375 | free_sys_dev(&list); |
1376 | return 2; | |
1377 | } else if (verbose) | |
155cbb4c | 1378 | print_found_intel_controllers(list); |
d665cc31 DW |
1379 | |
1380 | orom = find_imsm_orom(); | |
1381 | if (!orom) { | |
155cbb4c | 1382 | free_sys_dev(&list); |
d665cc31 DW |
1383 | if (verbose) |
1384 | fprintf(stderr, Name ": imsm option-rom not found\n"); | |
1385 | return 2; | |
1386 | } | |
1387 | ||
1388 | printf(" Platform : Intel(R) Matrix Storage Manager\n"); | |
1389 | printf(" Version : %d.%d.%d.%d\n", orom->major_ver, orom->minor_ver, | |
1390 | orom->hotfix_ver, orom->build); | |
1391 | printf(" RAID Levels :%s%s%s%s%s\n", | |
1392 | imsm_orom_has_raid0(orom) ? " raid0" : "", | |
1393 | imsm_orom_has_raid1(orom) ? " raid1" : "", | |
1394 | imsm_orom_has_raid1e(orom) ? " raid1e" : "", | |
1395 | imsm_orom_has_raid10(orom) ? " raid10" : "", | |
1396 | imsm_orom_has_raid5(orom) ? " raid5" : ""); | |
8be094f0 DW |
1397 | printf(" Chunk Sizes :%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", |
1398 | imsm_orom_has_chunk(orom, 2) ? " 2k" : "", | |
1399 | imsm_orom_has_chunk(orom, 4) ? " 4k" : "", | |
1400 | imsm_orom_has_chunk(orom, 8) ? " 8k" : "", | |
1401 | imsm_orom_has_chunk(orom, 16) ? " 16k" : "", | |
1402 | imsm_orom_has_chunk(orom, 32) ? " 32k" : "", | |
1403 | imsm_orom_has_chunk(orom, 64) ? " 64k" : "", | |
1404 | imsm_orom_has_chunk(orom, 128) ? " 128k" : "", | |
1405 | imsm_orom_has_chunk(orom, 256) ? " 256k" : "", | |
1406 | imsm_orom_has_chunk(orom, 512) ? " 512k" : "", | |
1407 | imsm_orom_has_chunk(orom, 1024*1) ? " 1M" : "", | |
1408 | imsm_orom_has_chunk(orom, 1024*2) ? " 2M" : "", | |
1409 | imsm_orom_has_chunk(orom, 1024*4) ? " 4M" : "", | |
1410 | imsm_orom_has_chunk(orom, 1024*8) ? " 8M" : "", | |
1411 | imsm_orom_has_chunk(orom, 1024*16) ? " 16M" : "", | |
1412 | imsm_orom_has_chunk(orom, 1024*32) ? " 32M" : "", | |
1413 | imsm_orom_has_chunk(orom, 1024*64) ? " 64M" : ""); | |
d665cc31 DW |
1414 | printf(" Max Disks : %d\n", orom->tds); |
1415 | printf(" Max Volumes : %d\n", orom->vpa); | |
d665cc31 | 1416 | |
120dc887 LM |
1417 | for (hba = list; hba; hba = hba->next) { |
1418 | printf(" I/O Controller : %s (%s)\n", | |
1419 | hba->path, get_sys_dev_type(hba->type)); | |
d665cc31 | 1420 | |
120dc887 LM |
1421 | if (hba->type == SYS_DEV_SATA) { |
1422 | host_base = ahci_get_port_count(hba->path, &port_count); | |
1423 | if (ahci_enumerate_ports(hba->path, port_count, host_base, verbose)) { | |
1424 | if (verbose) | |
1425 | fprintf(stderr, Name ": failed to enumerate " | |
1426 | "ports on SATA controller at %s.", hba->pci_id); | |
1427 | result |= 2; | |
1428 | } | |
155cbb4c LM |
1429 | } else if (hba->type == SYS_DEV_SAS) { |
1430 | if (verbose) | |
1431 | fprintf(stderr, Name ": failed to enumerate " | |
1432 | "devices on SAS controller at %s.", hba->pci_id); | |
1433 | result |= 2; | |
120dc887 | 1434 | } |
d665cc31 | 1435 | } |
155cbb4c | 1436 | |
120dc887 LM |
1437 | free_sys_dev(&list); |
1438 | return result; | |
d665cc31 | 1439 | } |
cdddbdbc DW |
1440 | #endif |
1441 | ||
1442 | static int match_home_imsm(struct supertype *st, char *homehost) | |
1443 | { | |
5115ca67 DW |
1444 | /* the imsm metadata format does not specify any host |
1445 | * identification information. We return -1 since we can never | |
1446 | * confirm nor deny whether a given array is "meant" for this | |
148acb7b | 1447 | * host. We rely on compare_super and the 'family_num' fields to |
5115ca67 DW |
1448 | * exclude member disks that do not belong, and we rely on |
1449 | * mdadm.conf to specify the arrays that should be assembled. | |
1450 | * Auto-assembly may still pick up "foreign" arrays. | |
1451 | */ | |
cdddbdbc | 1452 | |
9362c1c8 | 1453 | return -1; |
cdddbdbc DW |
1454 | } |
1455 | ||
1456 | static void uuid_from_super_imsm(struct supertype *st, int uuid[4]) | |
1457 | { | |
51006d85 N |
1458 | /* The uuid returned here is used for: |
1459 | * uuid to put into bitmap file (Create, Grow) | |
1460 | * uuid for backup header when saving critical section (Grow) | |
1461 | * comparing uuids when re-adding a device into an array | |
1462 | * In these cases the uuid required is that of the data-array, | |
1463 | * not the device-set. | |
1464 | * uuid to recognise same set when adding a missing device back | |
1465 | * to an array. This is a uuid for the device-set. | |
1466 | * | |
1467 | * For each of these we can make do with a truncated | |
1468 | * or hashed uuid rather than the original, as long as | |
1469 | * everyone agrees. | |
1470 | * In each case the uuid required is that of the data-array, | |
1471 | * not the device-set. | |
43dad3d6 | 1472 | */ |
51006d85 N |
1473 | /* imsm does not track uuid's so we synthesis one using sha1 on |
1474 | * - The signature (Which is constant for all imsm array, but no matter) | |
148acb7b | 1475 | * - the orig_family_num of the container |
51006d85 N |
1476 | * - the index number of the volume |
1477 | * - the 'serial' number of the volume. | |
1478 | * Hopefully these are all constant. | |
1479 | */ | |
1480 | struct intel_super *super = st->sb; | |
43dad3d6 | 1481 | |
51006d85 N |
1482 | char buf[20]; |
1483 | struct sha1_ctx ctx; | |
1484 | struct imsm_dev *dev = NULL; | |
148acb7b | 1485 | __u32 family_num; |
51006d85 | 1486 | |
148acb7b DW |
1487 | /* some mdadm versions failed to set ->orig_family_num, in which |
1488 | * case fall back to ->family_num. orig_family_num will be | |
1489 | * fixed up with the first metadata update. | |
1490 | */ | |
1491 | family_num = super->anchor->orig_family_num; | |
1492 | if (family_num == 0) | |
1493 | family_num = super->anchor->family_num; | |
51006d85 | 1494 | sha1_init_ctx(&ctx); |
92bd8f8d | 1495 | sha1_process_bytes(super->anchor->sig, MPB_SIG_LEN, &ctx); |
148acb7b | 1496 | sha1_process_bytes(&family_num, sizeof(__u32), &ctx); |
51006d85 N |
1497 | if (super->current_vol >= 0) |
1498 | dev = get_imsm_dev(super, super->current_vol); | |
1499 | if (dev) { | |
1500 | __u32 vol = super->current_vol; | |
1501 | sha1_process_bytes(&vol, sizeof(vol), &ctx); | |
1502 | sha1_process_bytes(dev->volume, MAX_RAID_SERIAL_LEN, &ctx); | |
1503 | } | |
1504 | sha1_finish_ctx(&ctx, buf); | |
1505 | memcpy(uuid, buf, 4*4); | |
cdddbdbc DW |
1506 | } |
1507 | ||
0d481d37 | 1508 | #if 0 |
4f5bc454 DW |
1509 | static void |
1510 | get_imsm_numerical_version(struct imsm_super *mpb, int *m, int *p) | |
cdddbdbc | 1511 | { |
cdddbdbc DW |
1512 | __u8 *v = get_imsm_version(mpb); |
1513 | __u8 *end = mpb->sig + MAX_SIGNATURE_LENGTH; | |
1514 | char major[] = { 0, 0, 0 }; | |
1515 | char minor[] = { 0 ,0, 0 }; | |
1516 | char patch[] = { 0, 0, 0 }; | |
1517 | char *ver_parse[] = { major, minor, patch }; | |
1518 | int i, j; | |
1519 | ||
1520 | i = j = 0; | |
1521 | while (*v != '\0' && v < end) { | |
1522 | if (*v != '.' && j < 2) | |
1523 | ver_parse[i][j++] = *v; | |
1524 | else { | |
1525 | i++; | |
1526 | j = 0; | |
1527 | } | |
1528 | v++; | |
1529 | } | |
1530 | ||
4f5bc454 DW |
1531 | *m = strtol(minor, NULL, 0); |
1532 | *p = strtol(patch, NULL, 0); | |
1533 | } | |
0d481d37 | 1534 | #endif |
4f5bc454 | 1535 | |
1e5c6983 DW |
1536 | static __u32 migr_strip_blocks_resync(struct imsm_dev *dev) |
1537 | { | |
1538 | /* migr_strip_size when repairing or initializing parity */ | |
1539 | struct imsm_map *map = get_imsm_map(dev, 0); | |
1540 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); | |
1541 | ||
1542 | switch (get_imsm_raid_level(map)) { | |
1543 | case 5: | |
1544 | case 10: | |
1545 | return chunk; | |
1546 | default: | |
1547 | return 128*1024 >> 9; | |
1548 | } | |
1549 | } | |
1550 | ||
1551 | static __u32 migr_strip_blocks_rebuild(struct imsm_dev *dev) | |
1552 | { | |
1553 | /* migr_strip_size when rebuilding a degraded disk, no idea why | |
1554 | * this is different than migr_strip_size_resync(), but it's good | |
1555 | * to be compatible | |
1556 | */ | |
1557 | struct imsm_map *map = get_imsm_map(dev, 1); | |
1558 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); | |
1559 | ||
1560 | switch (get_imsm_raid_level(map)) { | |
1561 | case 1: | |
1562 | case 10: | |
1563 | if (map->num_members % map->num_domains == 0) | |
1564 | return 128*1024 >> 9; | |
1565 | else | |
1566 | return chunk; | |
1567 | case 5: | |
1568 | return max((__u32) 64*1024 >> 9, chunk); | |
1569 | default: | |
1570 | return 128*1024 >> 9; | |
1571 | } | |
1572 | } | |
1573 | ||
1574 | static __u32 num_stripes_per_unit_resync(struct imsm_dev *dev) | |
1575 | { | |
1576 | struct imsm_map *lo = get_imsm_map(dev, 0); | |
1577 | struct imsm_map *hi = get_imsm_map(dev, 1); | |
1578 | __u32 lo_chunk = __le32_to_cpu(lo->blocks_per_strip); | |
1579 | __u32 hi_chunk = __le32_to_cpu(hi->blocks_per_strip); | |
1580 | ||
1581 | return max((__u32) 1, hi_chunk / lo_chunk); | |
1582 | } | |
1583 | ||
1584 | static __u32 num_stripes_per_unit_rebuild(struct imsm_dev *dev) | |
1585 | { | |
1586 | struct imsm_map *lo = get_imsm_map(dev, 0); | |
1587 | int level = get_imsm_raid_level(lo); | |
1588 | ||
1589 | if (level == 1 || level == 10) { | |
1590 | struct imsm_map *hi = get_imsm_map(dev, 1); | |
1591 | ||
1592 | return hi->num_domains; | |
1593 | } else | |
1594 | return num_stripes_per_unit_resync(dev); | |
1595 | } | |
1596 | ||
98130f40 | 1597 | static __u8 imsm_num_data_members(struct imsm_dev *dev, int second_map) |
1e5c6983 DW |
1598 | { |
1599 | /* named 'imsm_' because raid0, raid1 and raid10 | |
1600 | * counter-intuitively have the same number of data disks | |
1601 | */ | |
98130f40 | 1602 | struct imsm_map *map = get_imsm_map(dev, second_map); |
1e5c6983 DW |
1603 | |
1604 | switch (get_imsm_raid_level(map)) { | |
1605 | case 0: | |
1606 | case 1: | |
1607 | case 10: | |
1608 | return map->num_members; | |
1609 | case 5: | |
1610 | return map->num_members - 1; | |
1611 | default: | |
1612 | dprintf("%s: unsupported raid level\n", __func__); | |
1613 | return 0; | |
1614 | } | |
1615 | } | |
1616 | ||
1617 | static __u32 parity_segment_depth(struct imsm_dev *dev) | |
1618 | { | |
1619 | struct imsm_map *map = get_imsm_map(dev, 0); | |
1620 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); | |
1621 | ||
1622 | switch(get_imsm_raid_level(map)) { | |
1623 | case 1: | |
1624 | case 10: | |
1625 | return chunk * map->num_domains; | |
1626 | case 5: | |
1627 | return chunk * map->num_members; | |
1628 | default: | |
1629 | return chunk; | |
1630 | } | |
1631 | } | |
1632 | ||
1633 | static __u32 map_migr_block(struct imsm_dev *dev, __u32 block) | |
1634 | { | |
1635 | struct imsm_map *map = get_imsm_map(dev, 1); | |
1636 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); | |
1637 | __u32 strip = block / chunk; | |
1638 | ||
1639 | switch (get_imsm_raid_level(map)) { | |
1640 | case 1: | |
1641 | case 10: { | |
1642 | __u32 vol_strip = (strip * map->num_domains) + 1; | |
1643 | __u32 vol_stripe = vol_strip / map->num_members; | |
1644 | ||
1645 | return vol_stripe * chunk + block % chunk; | |
1646 | } case 5: { | |
1647 | __u32 stripe = strip / (map->num_members - 1); | |
1648 | ||
1649 | return stripe * chunk + block % chunk; | |
1650 | } | |
1651 | default: | |
1652 | return 0; | |
1653 | } | |
1654 | } | |
1655 | ||
1656 | static __u64 blocks_per_migr_unit(struct imsm_dev *dev) | |
1657 | { | |
1658 | /* calculate the conversion factor between per member 'blocks' | |
1659 | * (md/{resync,rebuild}_start) and imsm migration units, return | |
1660 | * 0 for the 'not migrating' and 'unsupported migration' cases | |
1661 | */ | |
1662 | if (!dev->vol.migr_state) | |
1663 | return 0; | |
1664 | ||
1665 | switch (migr_type(dev)) { | |
6345120e | 1666 | case MIGR_GEN_MIGR: |
1e5c6983 DW |
1667 | case MIGR_VERIFY: |
1668 | case MIGR_REPAIR: | |
1669 | case MIGR_INIT: { | |
1670 | struct imsm_map *map = get_imsm_map(dev, 0); | |
1671 | __u32 stripes_per_unit; | |
1672 | __u32 blocks_per_unit; | |
1673 | __u32 parity_depth; | |
1674 | __u32 migr_chunk; | |
1675 | __u32 block_map; | |
1676 | __u32 block_rel; | |
1677 | __u32 segment; | |
1678 | __u32 stripe; | |
1679 | __u8 disks; | |
1680 | ||
1681 | /* yes, this is really the translation of migr_units to | |
1682 | * per-member blocks in the 'resync' case | |
1683 | */ | |
1684 | stripes_per_unit = num_stripes_per_unit_resync(dev); | |
1685 | migr_chunk = migr_strip_blocks_resync(dev); | |
98130f40 | 1686 | disks = imsm_num_data_members(dev, 0); |
1e5c6983 DW |
1687 | blocks_per_unit = stripes_per_unit * migr_chunk * disks; |
1688 | stripe = __le32_to_cpu(map->blocks_per_strip) * disks; | |
1689 | segment = blocks_per_unit / stripe; | |
1690 | block_rel = blocks_per_unit - segment * stripe; | |
1691 | parity_depth = parity_segment_depth(dev); | |
1692 | block_map = map_migr_block(dev, block_rel); | |
1693 | return block_map + parity_depth * segment; | |
1694 | } | |
1695 | case MIGR_REBUILD: { | |
1696 | __u32 stripes_per_unit; | |
1697 | __u32 migr_chunk; | |
1698 | ||
1699 | stripes_per_unit = num_stripes_per_unit_rebuild(dev); | |
1700 | migr_chunk = migr_strip_blocks_rebuild(dev); | |
1701 | return migr_chunk * stripes_per_unit; | |
1702 | } | |
1e5c6983 DW |
1703 | case MIGR_STATE_CHANGE: |
1704 | default: | |
1705 | return 0; | |
1706 | } | |
1707 | } | |
1708 | ||
c2c087e6 DW |
1709 | static int imsm_level_to_layout(int level) |
1710 | { | |
1711 | switch (level) { | |
1712 | case 0: | |
1713 | case 1: | |
1714 | return 0; | |
1715 | case 5: | |
1716 | case 6: | |
a380c027 | 1717 | return ALGORITHM_LEFT_ASYMMETRIC; |
c2c087e6 | 1718 | case 10: |
c92a2527 | 1719 | return 0x102; |
c2c087e6 | 1720 | } |
a18a888e | 1721 | return UnSet; |
c2c087e6 DW |
1722 | } |
1723 | ||
a5d85af7 | 1724 | static void getinfo_super_imsm_volume(struct supertype *st, struct mdinfo *info, char *dmap) |
bf5a934a DW |
1725 | { |
1726 | struct intel_super *super = st->sb; | |
949c47a0 | 1727 | struct imsm_dev *dev = get_imsm_dev(super, super->current_vol); |
a965f303 | 1728 | struct imsm_map *map = get_imsm_map(dev, 0); |
81ac8b4d | 1729 | struct imsm_map *prev_map = get_imsm_map(dev, 1); |
b335e593 | 1730 | struct imsm_map *map_to_analyse = map; |
efb30e7f | 1731 | struct dl *dl; |
e207da2f | 1732 | char *devname; |
a5d85af7 | 1733 | int map_disks = info->array.raid_disks; |
bf5a934a | 1734 | |
b335e593 AK |
1735 | if (prev_map) |
1736 | map_to_analyse = prev_map; | |
1737 | ||
efb30e7f DW |
1738 | for (dl = super->disks; dl; dl = dl->next) |
1739 | if (dl->raiddisk == info->disk.raid_disk) | |
1740 | break; | |
bf5a934a | 1741 | info->container_member = super->current_vol; |
b335e593 AK |
1742 | info->array.raid_disks = map_to_analyse->num_members; |
1743 | info->array.level = get_imsm_raid_level(map_to_analyse); | |
bf5a934a DW |
1744 | info->array.layout = imsm_level_to_layout(info->array.level); |
1745 | info->array.md_minor = -1; | |
1746 | info->array.ctime = 0; | |
1747 | info->array.utime = 0; | |
b335e593 AK |
1748 | info->array.chunk_size = |
1749 | __le16_to_cpu(map_to_analyse->blocks_per_strip) << 9; | |
301406c9 | 1750 | info->array.state = !dev->vol.dirty; |
da9b4a62 DW |
1751 | info->custom_array_size = __le32_to_cpu(dev->size_high); |
1752 | info->custom_array_size <<= 32; | |
1753 | info->custom_array_size |= __le32_to_cpu(dev->size_low); | |
b335e593 AK |
1754 | if (prev_map) { |
1755 | info->new_level = get_imsm_raid_level(map); | |
1756 | info->new_layout = imsm_level_to_layout(info->new_level); | |
1757 | info->new_chunk = __le16_to_cpu(map->blocks_per_strip) << 9; | |
1758 | } else { | |
1759 | info->new_level = UnSet; | |
1760 | info->new_layout = UnSet; | |
1761 | info->new_chunk = info->array.chunk_size; | |
1762 | } | |
301406c9 DW |
1763 | info->disk.major = 0; |
1764 | info->disk.minor = 0; | |
efb30e7f DW |
1765 | if (dl) { |
1766 | info->disk.major = dl->major; | |
1767 | info->disk.minor = dl->minor; | |
1768 | } | |
bf5a934a | 1769 | |
b335e593 AK |
1770 | info->data_offset = __le32_to_cpu(map_to_analyse->pba_of_lba0); |
1771 | info->component_size = | |
1772 | __le32_to_cpu(map_to_analyse->blocks_per_member); | |
301406c9 | 1773 | memset(info->uuid, 0, sizeof(info->uuid)); |
921d9e16 | 1774 | info->recovery_start = MaxSector; |
81ac8b4d AK |
1775 | info->reshape_active = (prev_map != NULL); |
1776 | if (info->reshape_active) | |
1777 | info->delta_disks = map->num_members - prev_map->num_members; | |
1778 | else | |
1779 | info->delta_disks = 0; | |
bf5a934a | 1780 | |
b335e593 AK |
1781 | if (map_to_analyse->map_state == IMSM_T_STATE_UNINITIALIZED || |
1782 | dev->vol.dirty) { | |
301406c9 | 1783 | info->resync_start = 0; |
1e5c6983 DW |
1784 | } else if (dev->vol.migr_state) { |
1785 | switch (migr_type(dev)) { | |
1786 | case MIGR_REPAIR: | |
1787 | case MIGR_INIT: { | |
1788 | __u64 blocks_per_unit = blocks_per_migr_unit(dev); | |
1789 | __u64 units = __le32_to_cpu(dev->vol.curr_migr_unit); | |
1790 | ||
1791 | info->resync_start = blocks_per_unit * units; | |
1792 | break; | |
1793 | } | |
1794 | case MIGR_VERIFY: | |
1795 | /* we could emulate the checkpointing of | |
1796 | * 'sync_action=check' migrations, but for now | |
1797 | * we just immediately complete them | |
1798 | */ | |
1799 | case MIGR_REBUILD: | |
1800 | /* this is handled by container_content_imsm() */ | |
1801 | case MIGR_GEN_MIGR: | |
1802 | case MIGR_STATE_CHANGE: | |
1803 | /* FIXME handle other migrations */ | |
1804 | default: | |
1805 | /* we are not dirty, so... */ | |
1806 | info->resync_start = MaxSector; | |
1807 | } | |
1808 | } else | |
b7528a20 | 1809 | info->resync_start = MaxSector; |
301406c9 DW |
1810 | |
1811 | strncpy(info->name, (char *) dev->volume, MAX_RAID_SERIAL_LEN); | |
1812 | info->name[MAX_RAID_SERIAL_LEN] = 0; | |
bf5a934a | 1813 | |
f35f2525 N |
1814 | info->array.major_version = -1; |
1815 | info->array.minor_version = -2; | |
e207da2f AW |
1816 | devname = devnum2devname(st->container_dev); |
1817 | *info->text_version = '\0'; | |
1818 | if (devname) | |
1819 | sprintf(info->text_version, "/%s/%d", devname, info->container_member); | |
1820 | free(devname); | |
a67dd8cc | 1821 | info->safe_mode_delay = 4000; /* 4 secs like the Matrix driver */ |
51006d85 | 1822 | uuid_from_super_imsm(st, info->uuid); |
a5d85af7 N |
1823 | |
1824 | if (dmap) { | |
1825 | int i, j; | |
1826 | for (i=0; i<map_disks; i++) { | |
1827 | dmap[i] = 0; | |
1828 | if (i < info->array.raid_disks) { | |
1829 | struct imsm_disk *dsk; | |
98130f40 | 1830 | j = get_imsm_disk_idx(dev, i, -1); |
a5d85af7 N |
1831 | dsk = get_imsm_disk(super, j); |
1832 | if (dsk && (dsk->status & CONFIGURED_DISK)) | |
1833 | dmap[i] = 1; | |
1834 | } | |
1835 | } | |
1836 | } | |
81ac8b4d | 1837 | } |
bf5a934a | 1838 | |
97b4d0e9 DW |
1839 | static __u8 imsm_check_degraded(struct intel_super *super, struct imsm_dev *dev, int failed); |
1840 | static int imsm_count_failed(struct intel_super *super, struct imsm_dev *dev); | |
1841 | ||
1842 | static struct imsm_disk *get_imsm_missing(struct intel_super *super, __u8 index) | |
1843 | { | |
1844 | struct dl *d; | |
1845 | ||
1846 | for (d = super->missing; d; d = d->next) | |
1847 | if (d->index == index) | |
1848 | return &d->disk; | |
1849 | return NULL; | |
1850 | } | |
1851 | ||
a5d85af7 | 1852 | static void getinfo_super_imsm(struct supertype *st, struct mdinfo *info, char *map) |
4f5bc454 DW |
1853 | { |
1854 | struct intel_super *super = st->sb; | |
4f5bc454 | 1855 | struct imsm_disk *disk; |
a5d85af7 | 1856 | int map_disks = info->array.raid_disks; |
ab3cb6b3 N |
1857 | int max_enough = -1; |
1858 | int i; | |
1859 | struct imsm_super *mpb; | |
4f5bc454 | 1860 | |
bf5a934a | 1861 | if (super->current_vol >= 0) { |
a5d85af7 | 1862 | getinfo_super_imsm_volume(st, info, map); |
bf5a934a DW |
1863 | return; |
1864 | } | |
d23fe947 DW |
1865 | |
1866 | /* Set raid_disks to zero so that Assemble will always pull in valid | |
1867 | * spares | |
1868 | */ | |
1869 | info->array.raid_disks = 0; | |
cdddbdbc DW |
1870 | info->array.level = LEVEL_CONTAINER; |
1871 | info->array.layout = 0; | |
1872 | info->array.md_minor = -1; | |
c2c087e6 | 1873 | info->array.ctime = 0; /* N/A for imsm */ |
cdddbdbc DW |
1874 | info->array.utime = 0; |
1875 | info->array.chunk_size = 0; | |
1876 | ||
1877 | info->disk.major = 0; | |
1878 | info->disk.minor = 0; | |
cdddbdbc | 1879 | info->disk.raid_disk = -1; |
c2c087e6 | 1880 | info->reshape_active = 0; |
f35f2525 N |
1881 | info->array.major_version = -1; |
1882 | info->array.minor_version = -2; | |
c2c087e6 | 1883 | strcpy(info->text_version, "imsm"); |
a67dd8cc | 1884 | info->safe_mode_delay = 0; |
c2c087e6 DW |
1885 | info->disk.number = -1; |
1886 | info->disk.state = 0; | |
c5afc314 | 1887 | info->name[0] = 0; |
921d9e16 | 1888 | info->recovery_start = MaxSector; |
c2c087e6 | 1889 | |
97b4d0e9 | 1890 | /* do we have the all the insync disks that we expect? */ |
ab3cb6b3 | 1891 | mpb = super->anchor; |
97b4d0e9 | 1892 | |
ab3cb6b3 N |
1893 | for (i = 0; i < mpb->num_raid_devs; i++) { |
1894 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
1895 | int failed, enough, j, missing = 0; | |
1896 | struct imsm_map *map; | |
1897 | __u8 state; | |
97b4d0e9 | 1898 | |
ab3cb6b3 N |
1899 | failed = imsm_count_failed(super, dev); |
1900 | state = imsm_check_degraded(super, dev, failed); | |
1901 | map = get_imsm_map(dev, dev->vol.migr_state); | |
1902 | ||
1903 | /* any newly missing disks? | |
1904 | * (catches single-degraded vs double-degraded) | |
1905 | */ | |
1906 | for (j = 0; j < map->num_members; j++) { | |
98130f40 | 1907 | __u32 ord = get_imsm_ord_tbl_ent(dev, i, -1); |
ab3cb6b3 N |
1908 | __u32 idx = ord_to_idx(ord); |
1909 | ||
1910 | if (!(ord & IMSM_ORD_REBUILD) && | |
1911 | get_imsm_missing(super, idx)) { | |
1912 | missing = 1; | |
1913 | break; | |
1914 | } | |
97b4d0e9 | 1915 | } |
ab3cb6b3 N |
1916 | |
1917 | if (state == IMSM_T_STATE_FAILED) | |
1918 | enough = -1; | |
1919 | else if (state == IMSM_T_STATE_DEGRADED && | |
1920 | (state != map->map_state || missing)) | |
1921 | enough = 0; | |
1922 | else /* we're normal, or already degraded */ | |
1923 | enough = 1; | |
1924 | ||
1925 | /* in the missing/failed disk case check to see | |
1926 | * if at least one array is runnable | |
1927 | */ | |
1928 | max_enough = max(max_enough, enough); | |
1929 | } | |
1930 | dprintf("%s: enough: %d\n", __func__, max_enough); | |
1931 | info->container_enough = max_enough; | |
97b4d0e9 | 1932 | |
4a04ec6c | 1933 | if (super->disks) { |
14e8215b DW |
1934 | __u32 reserved = imsm_reserved_sectors(super, super->disks); |
1935 | ||
b9f594fe | 1936 | disk = &super->disks->disk; |
14e8215b DW |
1937 | info->data_offset = __le32_to_cpu(disk->total_blocks) - reserved; |
1938 | info->component_size = reserved; | |
25ed7e59 | 1939 | info->disk.state = is_configured(disk) ? (1 << MD_DISK_ACTIVE) : 0; |
df474657 DW |
1940 | /* we don't change info->disk.raid_disk here because |
1941 | * this state will be finalized in mdmon after we have | |
1942 | * found the 'most fresh' version of the metadata | |
1943 | */ | |
25ed7e59 DW |
1944 | info->disk.state |= is_failed(disk) ? (1 << MD_DISK_FAULTY) : 0; |
1945 | info->disk.state |= is_spare(disk) ? 0 : (1 << MD_DISK_SYNC); | |
cdddbdbc | 1946 | } |
a575e2a7 DW |
1947 | |
1948 | /* only call uuid_from_super_imsm when this disk is part of a populated container, | |
1949 | * ->compare_super may have updated the 'num_raid_devs' field for spares | |
1950 | */ | |
1951 | if (info->disk.state & (1 << MD_DISK_SYNC) || super->anchor->num_raid_devs) | |
36ba7d48 | 1952 | uuid_from_super_imsm(st, info->uuid); |
22e263f6 AC |
1953 | else |
1954 | memcpy(info->uuid, uuid_zero, sizeof(uuid_zero)); | |
a5d85af7 N |
1955 | |
1956 | /* I don't know how to compute 'map' on imsm, so use safe default */ | |
1957 | if (map) { | |
1958 | int i; | |
1959 | for (i = 0; i < map_disks; i++) | |
1960 | map[i] = 1; | |
1961 | } | |
1962 | ||
cdddbdbc DW |
1963 | } |
1964 | ||
5c4cd5da AC |
1965 | /* allocates memory and fills disk in mdinfo structure |
1966 | * for each disk in array */ | |
1967 | struct mdinfo *getinfo_super_disks_imsm(struct supertype *st) | |
1968 | { | |
1969 | struct mdinfo *mddev = NULL; | |
1970 | struct intel_super *super = st->sb; | |
1971 | struct imsm_disk *disk; | |
1972 | int count = 0; | |
1973 | struct dl *dl; | |
1974 | if (!super || !super->disks) | |
1975 | return NULL; | |
1976 | dl = super->disks; | |
1977 | mddev = malloc(sizeof(*mddev)); | |
1978 | if (!mddev) { | |
1979 | fprintf(stderr, Name ": Failed to allocate memory.\n"); | |
1980 | return NULL; | |
1981 | } | |
1982 | memset(mddev, 0, sizeof(*mddev)); | |
1983 | while (dl) { | |
1984 | struct mdinfo *tmp; | |
1985 | disk = &dl->disk; | |
1986 | tmp = malloc(sizeof(*tmp)); | |
1987 | if (!tmp) { | |
1988 | fprintf(stderr, Name ": Failed to allocate memory.\n"); | |
1989 | if (mddev) | |
1990 | sysfs_free(mddev); | |
1991 | return NULL; | |
1992 | } | |
1993 | memset(tmp, 0, sizeof(*tmp)); | |
1994 | if (mddev->devs) | |
1995 | tmp->next = mddev->devs; | |
1996 | mddev->devs = tmp; | |
1997 | tmp->disk.number = count++; | |
1998 | tmp->disk.major = dl->major; | |
1999 | tmp->disk.minor = dl->minor; | |
2000 | tmp->disk.state = is_configured(disk) ? | |
2001 | (1 << MD_DISK_ACTIVE) : 0; | |
2002 | tmp->disk.state |= is_failed(disk) ? (1 << MD_DISK_FAULTY) : 0; | |
2003 | tmp->disk.state |= is_spare(disk) ? 0 : (1 << MD_DISK_SYNC); | |
2004 | tmp->disk.raid_disk = -1; | |
2005 | dl = dl->next; | |
2006 | } | |
2007 | return mddev; | |
2008 | } | |
2009 | ||
cdddbdbc DW |
2010 | static int update_super_imsm(struct supertype *st, struct mdinfo *info, |
2011 | char *update, char *devname, int verbose, | |
2012 | int uuid_set, char *homehost) | |
2013 | { | |
f352c545 DW |
2014 | /* For 'assemble' and 'force' we need to return non-zero if any |
2015 | * change was made. For others, the return value is ignored. | |
2016 | * Update options are: | |
2017 | * force-one : This device looks a bit old but needs to be included, | |
2018 | * update age info appropriately. | |
2019 | * assemble: clear any 'faulty' flag to allow this device to | |
2020 | * be assembled. | |
2021 | * force-array: Array is degraded but being forced, mark it clean | |
2022 | * if that will be needed to assemble it. | |
2023 | * | |
2024 | * newdev: not used ???? | |
2025 | * grow: Array has gained a new device - this is currently for | |
2026 | * linear only | |
2027 | * resync: mark as dirty so a resync will happen. | |
2028 | * name: update the name - preserving the homehost | |
6e46bf34 | 2029 | * uuid: Change the uuid of the array to match watch is given |
f352c545 DW |
2030 | * |
2031 | * Following are not relevant for this imsm: | |
2032 | * sparc2.2 : update from old dodgey metadata | |
2033 | * super-minor: change the preferred_minor number | |
2034 | * summaries: update redundant counters. | |
f352c545 DW |
2035 | * homehost: update the recorded homehost |
2036 | * _reshape_progress: record new reshape_progress position. | |
2037 | */ | |
6e46bf34 DW |
2038 | int rv = 1; |
2039 | struct intel_super *super = st->sb; | |
2040 | struct imsm_super *mpb; | |
f352c545 | 2041 | |
6e46bf34 DW |
2042 | /* we can only update container info */ |
2043 | if (!super || super->current_vol >= 0 || !super->anchor) | |
2044 | return 1; | |
2045 | ||
2046 | mpb = super->anchor; | |
2047 | ||
2048 | if (strcmp(update, "uuid") == 0 && uuid_set && !info->update_private) | |
1e2b2765 | 2049 | rv = -1; |
6e46bf34 DW |
2050 | else if (strcmp(update, "uuid") == 0 && uuid_set && info->update_private) { |
2051 | mpb->orig_family_num = *((__u32 *) info->update_private); | |
2052 | rv = 0; | |
2053 | } else if (strcmp(update, "uuid") == 0) { | |
2054 | __u32 *new_family = malloc(sizeof(*new_family)); | |
2055 | ||
2056 | /* update orig_family_number with the incoming random | |
2057 | * data, report the new effective uuid, and store the | |
2058 | * new orig_family_num for future updates. | |
2059 | */ | |
2060 | if (new_family) { | |
2061 | memcpy(&mpb->orig_family_num, info->uuid, sizeof(__u32)); | |
2062 | uuid_from_super_imsm(st, info->uuid); | |
2063 | *new_family = mpb->orig_family_num; | |
2064 | info->update_private = new_family; | |
2065 | rv = 0; | |
2066 | } | |
2067 | } else if (strcmp(update, "assemble") == 0) | |
2068 | rv = 0; | |
2069 | else | |
1e2b2765 | 2070 | rv = -1; |
f352c545 | 2071 | |
6e46bf34 DW |
2072 | /* successful update? recompute checksum */ |
2073 | if (rv == 0) | |
2074 | mpb->check_sum = __le32_to_cpu(__gen_imsm_checksum(mpb)); | |
f352c545 DW |
2075 | |
2076 | return rv; | |
cdddbdbc DW |
2077 | } |
2078 | ||
c2c087e6 | 2079 | static size_t disks_to_mpb_size(int disks) |
cdddbdbc | 2080 | { |
c2c087e6 | 2081 | size_t size; |
cdddbdbc | 2082 | |
c2c087e6 DW |
2083 | size = sizeof(struct imsm_super); |
2084 | size += (disks - 1) * sizeof(struct imsm_disk); | |
2085 | size += 2 * sizeof(struct imsm_dev); | |
2086 | /* up to 2 maps per raid device (-2 for imsm_maps in imsm_dev */ | |
2087 | size += (4 - 2) * sizeof(struct imsm_map); | |
2088 | /* 4 possible disk_ord_tbl's */ | |
2089 | size += 4 * (disks - 1) * sizeof(__u32); | |
2090 | ||
2091 | return size; | |
2092 | } | |
2093 | ||
2094 | static __u64 avail_size_imsm(struct supertype *st, __u64 devsize) | |
2095 | { | |
2096 | if (devsize < (MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS)) | |
2097 | return 0; | |
2098 | ||
2099 | return devsize - (MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS); | |
cdddbdbc DW |
2100 | } |
2101 | ||
ba2de7ba DW |
2102 | static void free_devlist(struct intel_super *super) |
2103 | { | |
2104 | struct intel_dev *dv; | |
2105 | ||
2106 | while (super->devlist) { | |
2107 | dv = super->devlist->next; | |
2108 | free(super->devlist->dev); | |
2109 | free(super->devlist); | |
2110 | super->devlist = dv; | |
2111 | } | |
2112 | } | |
2113 | ||
2114 | static void imsm_copy_dev(struct imsm_dev *dest, struct imsm_dev *src) | |
2115 | { | |
2116 | memcpy(dest, src, sizeof_imsm_dev(src, 0)); | |
2117 | } | |
2118 | ||
cdddbdbc DW |
2119 | static int compare_super_imsm(struct supertype *st, struct supertype *tst) |
2120 | { | |
2121 | /* | |
2122 | * return: | |
2123 | * 0 same, or first was empty, and second was copied | |
2124 | * 1 second had wrong number | |
2125 | * 2 wrong uuid | |
2126 | * 3 wrong other info | |
2127 | */ | |
2128 | struct intel_super *first = st->sb; | |
2129 | struct intel_super *sec = tst->sb; | |
2130 | ||
2131 | if (!first) { | |
2132 | st->sb = tst->sb; | |
2133 | tst->sb = NULL; | |
2134 | return 0; | |
2135 | } | |
2136 | ||
d23fe947 DW |
2137 | /* if an anchor does not have num_raid_devs set then it is a free |
2138 | * floating spare | |
2139 | */ | |
2140 | if (first->anchor->num_raid_devs > 0 && | |
2141 | sec->anchor->num_raid_devs > 0) { | |
a2b97981 DW |
2142 | /* Determine if these disks might ever have been |
2143 | * related. Further disambiguation can only take place | |
2144 | * in load_super_imsm_all | |
2145 | */ | |
2146 | __u32 first_family = first->anchor->orig_family_num; | |
2147 | __u32 sec_family = sec->anchor->orig_family_num; | |
2148 | ||
f796af5d DW |
2149 | if (memcmp(first->anchor->sig, sec->anchor->sig, |
2150 | MAX_SIGNATURE_LENGTH) != 0) | |
2151 | return 3; | |
2152 | ||
a2b97981 DW |
2153 | if (first_family == 0) |
2154 | first_family = first->anchor->family_num; | |
2155 | if (sec_family == 0) | |
2156 | sec_family = sec->anchor->family_num; | |
2157 | ||
2158 | if (first_family != sec_family) | |
d23fe947 | 2159 | return 3; |
f796af5d | 2160 | |
d23fe947 | 2161 | } |
cdddbdbc | 2162 | |
f796af5d | 2163 | |
3e372e5a DW |
2164 | /* if 'first' is a spare promote it to a populated mpb with sec's |
2165 | * family number | |
2166 | */ | |
2167 | if (first->anchor->num_raid_devs == 0 && | |
2168 | sec->anchor->num_raid_devs > 0) { | |
78d30f94 | 2169 | int i; |
ba2de7ba DW |
2170 | struct intel_dev *dv; |
2171 | struct imsm_dev *dev; | |
78d30f94 DW |
2172 | |
2173 | /* we need to copy raid device info from sec if an allocation | |
2174 | * fails here we don't associate the spare | |
2175 | */ | |
2176 | for (i = 0; i < sec->anchor->num_raid_devs; i++) { | |
ba2de7ba DW |
2177 | dv = malloc(sizeof(*dv)); |
2178 | if (!dv) | |
2179 | break; | |
2180 | dev = malloc(sizeof_imsm_dev(get_imsm_dev(sec, i), 1)); | |
2181 | if (!dev) { | |
2182 | free(dv); | |
2183 | break; | |
78d30f94 | 2184 | } |
ba2de7ba DW |
2185 | dv->dev = dev; |
2186 | dv->index = i; | |
2187 | dv->next = first->devlist; | |
2188 | first->devlist = dv; | |
78d30f94 | 2189 | } |
709743c5 | 2190 | if (i < sec->anchor->num_raid_devs) { |
ba2de7ba DW |
2191 | /* allocation failure */ |
2192 | free_devlist(first); | |
2193 | fprintf(stderr, "imsm: failed to associate spare\n"); | |
2194 | return 3; | |
78d30f94 | 2195 | } |
3e372e5a | 2196 | first->anchor->num_raid_devs = sec->anchor->num_raid_devs; |
148acb7b | 2197 | first->anchor->orig_family_num = sec->anchor->orig_family_num; |
3e372e5a | 2198 | first->anchor->family_num = sec->anchor->family_num; |
ac6449be | 2199 | memcpy(first->anchor->sig, sec->anchor->sig, MAX_SIGNATURE_LENGTH); |
709743c5 DW |
2200 | for (i = 0; i < sec->anchor->num_raid_devs; i++) |
2201 | imsm_copy_dev(get_imsm_dev(first, i), get_imsm_dev(sec, i)); | |
3e372e5a DW |
2202 | } |
2203 | ||
cdddbdbc DW |
2204 | return 0; |
2205 | } | |
2206 | ||
0030e8d6 DW |
2207 | static void fd2devname(int fd, char *name) |
2208 | { | |
2209 | struct stat st; | |
2210 | char path[256]; | |
33a6535d | 2211 | char dname[PATH_MAX]; |
0030e8d6 DW |
2212 | char *nm; |
2213 | int rv; | |
2214 | ||
2215 | name[0] = '\0'; | |
2216 | if (fstat(fd, &st) != 0) | |
2217 | return; | |
2218 | sprintf(path, "/sys/dev/block/%d:%d", | |
2219 | major(st.st_rdev), minor(st.st_rdev)); | |
2220 | ||
2221 | rv = readlink(path, dname, sizeof(dname)); | |
2222 | if (rv <= 0) | |
2223 | return; | |
2224 | ||
2225 | dname[rv] = '\0'; | |
2226 | nm = strrchr(dname, '/'); | |
2227 | nm++; | |
2228 | snprintf(name, MAX_RAID_SERIAL_LEN, "/dev/%s", nm); | |
2229 | } | |
2230 | ||
cdddbdbc DW |
2231 | extern int scsi_get_serial(int fd, void *buf, size_t buf_len); |
2232 | ||
2233 | static int imsm_read_serial(int fd, char *devname, | |
2234 | __u8 serial[MAX_RAID_SERIAL_LEN]) | |
2235 | { | |
2236 | unsigned char scsi_serial[255]; | |
cdddbdbc DW |
2237 | int rv; |
2238 | int rsp_len; | |
1f24f035 | 2239 | int len; |
316e2bf4 DW |
2240 | char *dest; |
2241 | char *src; | |
2242 | char *rsp_buf; | |
2243 | int i; | |
cdddbdbc DW |
2244 | |
2245 | memset(scsi_serial, 0, sizeof(scsi_serial)); | |
cdddbdbc | 2246 | |
f9ba0ff1 DW |
2247 | rv = scsi_get_serial(fd, scsi_serial, sizeof(scsi_serial)); |
2248 | ||
40ebbb9c | 2249 | if (rv && check_env("IMSM_DEVNAME_AS_SERIAL")) { |
f9ba0ff1 DW |
2250 | memset(serial, 0, MAX_RAID_SERIAL_LEN); |
2251 | fd2devname(fd, (char *) serial); | |
0030e8d6 DW |
2252 | return 0; |
2253 | } | |
2254 | ||
cdddbdbc DW |
2255 | if (rv != 0) { |
2256 | if (devname) | |
2257 | fprintf(stderr, | |
2258 | Name ": Failed to retrieve serial for %s\n", | |
2259 | devname); | |
2260 | return rv; | |
2261 | } | |
2262 | ||
2263 | rsp_len = scsi_serial[3]; | |
03cd4cc8 DW |
2264 | if (!rsp_len) { |
2265 | if (devname) | |
2266 | fprintf(stderr, | |
2267 | Name ": Failed to retrieve serial for %s\n", | |
2268 | devname); | |
2269 | return 2; | |
2270 | } | |
1f24f035 | 2271 | rsp_buf = (char *) &scsi_serial[4]; |
5c3db629 | 2272 | |
316e2bf4 DW |
2273 | /* trim all whitespace and non-printable characters and convert |
2274 | * ':' to ';' | |
2275 | */ | |
2276 | for (i = 0, dest = rsp_buf; i < rsp_len; i++) { | |
2277 | src = &rsp_buf[i]; | |
2278 | if (*src > 0x20) { | |
2279 | /* ':' is reserved for use in placeholder serial | |
2280 | * numbers for missing disks | |
2281 | */ | |
2282 | if (*src == ':') | |
2283 | *dest++ = ';'; | |
2284 | else | |
2285 | *dest++ = *src; | |
2286 | } | |
2287 | } | |
2288 | len = dest - rsp_buf; | |
2289 | dest = rsp_buf; | |
2290 | ||
2291 | /* truncate leading characters */ | |
2292 | if (len > MAX_RAID_SERIAL_LEN) { | |
2293 | dest += len - MAX_RAID_SERIAL_LEN; | |
1f24f035 | 2294 | len = MAX_RAID_SERIAL_LEN; |
316e2bf4 | 2295 | } |
5c3db629 | 2296 | |
5c3db629 | 2297 | memset(serial, 0, MAX_RAID_SERIAL_LEN); |
316e2bf4 | 2298 | memcpy(serial, dest, len); |
cdddbdbc DW |
2299 | |
2300 | return 0; | |
2301 | } | |
2302 | ||
1f24f035 DW |
2303 | static int serialcmp(__u8 *s1, __u8 *s2) |
2304 | { | |
2305 | return strncmp((char *) s1, (char *) s2, MAX_RAID_SERIAL_LEN); | |
2306 | } | |
2307 | ||
2308 | static void serialcpy(__u8 *dest, __u8 *src) | |
2309 | { | |
2310 | strncpy((char *) dest, (char *) src, MAX_RAID_SERIAL_LEN); | |
2311 | } | |
2312 | ||
1799c9e8 | 2313 | #ifndef MDASSEMBLE |
54c2c1ea DW |
2314 | static struct dl *serial_to_dl(__u8 *serial, struct intel_super *super) |
2315 | { | |
2316 | struct dl *dl; | |
2317 | ||
2318 | for (dl = super->disks; dl; dl = dl->next) | |
2319 | if (serialcmp(dl->serial, serial) == 0) | |
2320 | break; | |
2321 | ||
2322 | return dl; | |
2323 | } | |
1799c9e8 | 2324 | #endif |
54c2c1ea | 2325 | |
a2b97981 DW |
2326 | static struct imsm_disk * |
2327 | __serial_to_disk(__u8 *serial, struct imsm_super *mpb, int *idx) | |
2328 | { | |
2329 | int i; | |
2330 | ||
2331 | for (i = 0; i < mpb->num_disks; i++) { | |
2332 | struct imsm_disk *disk = __get_imsm_disk(mpb, i); | |
2333 | ||
2334 | if (serialcmp(disk->serial, serial) == 0) { | |
2335 | if (idx) | |
2336 | *idx = i; | |
2337 | return disk; | |
2338 | } | |
2339 | } | |
2340 | ||
2341 | return NULL; | |
2342 | } | |
2343 | ||
cdddbdbc DW |
2344 | static int |
2345 | load_imsm_disk(int fd, struct intel_super *super, char *devname, int keep_fd) | |
2346 | { | |
a2b97981 | 2347 | struct imsm_disk *disk; |
cdddbdbc DW |
2348 | struct dl *dl; |
2349 | struct stat stb; | |
cdddbdbc | 2350 | int rv; |
a2b97981 | 2351 | char name[40]; |
d23fe947 DW |
2352 | __u8 serial[MAX_RAID_SERIAL_LEN]; |
2353 | ||
2354 | rv = imsm_read_serial(fd, devname, serial); | |
2355 | ||
2356 | if (rv != 0) | |
2357 | return 2; | |
2358 | ||
a2b97981 | 2359 | dl = calloc(1, sizeof(*dl)); |
b9f594fe | 2360 | if (!dl) { |
cdddbdbc DW |
2361 | if (devname) |
2362 | fprintf(stderr, | |
2363 | Name ": failed to allocate disk buffer for %s\n", | |
2364 | devname); | |
2365 | return 2; | |
2366 | } | |
cdddbdbc | 2367 | |
a2b97981 DW |
2368 | fstat(fd, &stb); |
2369 | dl->major = major(stb.st_rdev); | |
2370 | dl->minor = minor(stb.st_rdev); | |
2371 | dl->next = super->disks; | |
2372 | dl->fd = keep_fd ? fd : -1; | |
2373 | assert(super->disks == NULL); | |
2374 | super->disks = dl; | |
2375 | serialcpy(dl->serial, serial); | |
2376 | dl->index = -2; | |
2377 | dl->e = NULL; | |
2378 | fd2devname(fd, name); | |
2379 | if (devname) | |
2380 | dl->devname = strdup(devname); | |
2381 | else | |
2382 | dl->devname = strdup(name); | |
cdddbdbc | 2383 | |
d23fe947 | 2384 | /* look up this disk's index in the current anchor */ |
a2b97981 DW |
2385 | disk = __serial_to_disk(dl->serial, super->anchor, &dl->index); |
2386 | if (disk) { | |
2387 | dl->disk = *disk; | |
2388 | /* only set index on disks that are a member of a | |
2389 | * populated contianer, i.e. one with raid_devs | |
2390 | */ | |
2391 | if (is_failed(&dl->disk)) | |
3f6efecc | 2392 | dl->index = -2; |
a2b97981 DW |
2393 | else if (is_spare(&dl->disk)) |
2394 | dl->index = -1; | |
3f6efecc DW |
2395 | } |
2396 | ||
949c47a0 DW |
2397 | return 0; |
2398 | } | |
2399 | ||
0e600426 | 2400 | #ifndef MDASSEMBLE |
0c046afd DW |
2401 | /* When migrating map0 contains the 'destination' state while map1 |
2402 | * contains the current state. When not migrating map0 contains the | |
2403 | * current state. This routine assumes that map[0].map_state is set to | |
2404 | * the current array state before being called. | |
2405 | * | |
2406 | * Migration is indicated by one of the following states | |
2407 | * 1/ Idle (migr_state=0 map0state=normal||unitialized||degraded||failed) | |
e3bba0e0 | 2408 | * 2/ Initialize (migr_state=1 migr_type=MIGR_INIT map0state=normal |
0c046afd | 2409 | * map1state=unitialized) |
1484e727 | 2410 | * 3/ Repair (Resync) (migr_state=1 migr_type=MIGR_REPAIR map0state=normal |
0c046afd | 2411 | * map1state=normal) |
e3bba0e0 | 2412 | * 4/ Rebuild (migr_state=1 migr_type=MIGR_REBUILD map0state=normal |
0c046afd DW |
2413 | * map1state=degraded) |
2414 | */ | |
0556e1a2 | 2415 | static void migrate(struct imsm_dev *dev, __u8 to_state, int migr_type) |
3393c6af | 2416 | { |
0c046afd | 2417 | struct imsm_map *dest; |
3393c6af DW |
2418 | struct imsm_map *src = get_imsm_map(dev, 0); |
2419 | ||
0c046afd | 2420 | dev->vol.migr_state = 1; |
1484e727 | 2421 | set_migr_type(dev, migr_type); |
f8f603f1 | 2422 | dev->vol.curr_migr_unit = 0; |
0c046afd DW |
2423 | dest = get_imsm_map(dev, 1); |
2424 | ||
0556e1a2 | 2425 | /* duplicate and then set the target end state in map[0] */ |
3393c6af | 2426 | memcpy(dest, src, sizeof_imsm_map(src)); |
28bce06f AK |
2427 | if ((migr_type == MIGR_REBUILD) || |
2428 | (migr_type == MIGR_GEN_MIGR)) { | |
0556e1a2 DW |
2429 | __u32 ord; |
2430 | int i; | |
2431 | ||
2432 | for (i = 0; i < src->num_members; i++) { | |
2433 | ord = __le32_to_cpu(src->disk_ord_tbl[i]); | |
2434 | set_imsm_ord_tbl_ent(src, i, ord_to_idx(ord)); | |
2435 | } | |
2436 | } | |
2437 | ||
0c046afd | 2438 | src->map_state = to_state; |
949c47a0 | 2439 | } |
f8f603f1 DW |
2440 | |
2441 | static void end_migration(struct imsm_dev *dev, __u8 map_state) | |
2442 | { | |
2443 | struct imsm_map *map = get_imsm_map(dev, 0); | |
0556e1a2 | 2444 | struct imsm_map *prev = get_imsm_map(dev, dev->vol.migr_state); |
28bce06f | 2445 | int i, j; |
0556e1a2 DW |
2446 | |
2447 | /* merge any IMSM_ORD_REBUILD bits that were not successfully | |
2448 | * completed in the last migration. | |
2449 | * | |
28bce06f | 2450 | * FIXME add support for raid-level-migration |
0556e1a2 DW |
2451 | */ |
2452 | for (i = 0; i < prev->num_members; i++) | |
28bce06f AK |
2453 | for (j = 0; j < map->num_members; j++) |
2454 | /* during online capacity expansion | |
2455 | * disks position can be changed if takeover is used | |
2456 | */ | |
2457 | if (ord_to_idx(map->disk_ord_tbl[j]) == | |
2458 | ord_to_idx(prev->disk_ord_tbl[i])) { | |
2459 | map->disk_ord_tbl[j] |= prev->disk_ord_tbl[i]; | |
2460 | break; | |
2461 | } | |
f8f603f1 DW |
2462 | |
2463 | dev->vol.migr_state = 0; | |
28bce06f | 2464 | dev->vol.migr_type = 0; |
f8f603f1 DW |
2465 | dev->vol.curr_migr_unit = 0; |
2466 | map->map_state = map_state; | |
2467 | } | |
0e600426 | 2468 | #endif |
949c47a0 DW |
2469 | |
2470 | static int parse_raid_devices(struct intel_super *super) | |
2471 | { | |
2472 | int i; | |
2473 | struct imsm_dev *dev_new; | |
4d7b1503 | 2474 | size_t len, len_migr; |
401d313b | 2475 | size_t max_len = 0; |
4d7b1503 DW |
2476 | size_t space_needed = 0; |
2477 | struct imsm_super *mpb = super->anchor; | |
949c47a0 DW |
2478 | |
2479 | for (i = 0; i < super->anchor->num_raid_devs; i++) { | |
2480 | struct imsm_dev *dev_iter = __get_imsm_dev(super->anchor, i); | |
ba2de7ba | 2481 | struct intel_dev *dv; |
949c47a0 | 2482 | |
4d7b1503 DW |
2483 | len = sizeof_imsm_dev(dev_iter, 0); |
2484 | len_migr = sizeof_imsm_dev(dev_iter, 1); | |
2485 | if (len_migr > len) | |
2486 | space_needed += len_migr - len; | |
2487 | ||
ba2de7ba DW |
2488 | dv = malloc(sizeof(*dv)); |
2489 | if (!dv) | |
2490 | return 1; | |
401d313b AK |
2491 | if (max_len < len_migr) |
2492 | max_len = len_migr; | |
2493 | if (max_len > len_migr) | |
2494 | space_needed += max_len - len_migr; | |
2495 | dev_new = malloc(max_len); | |
ba2de7ba DW |
2496 | if (!dev_new) { |
2497 | free(dv); | |
949c47a0 | 2498 | return 1; |
ba2de7ba | 2499 | } |
949c47a0 | 2500 | imsm_copy_dev(dev_new, dev_iter); |
ba2de7ba DW |
2501 | dv->dev = dev_new; |
2502 | dv->index = i; | |
2503 | dv->next = super->devlist; | |
2504 | super->devlist = dv; | |
949c47a0 | 2505 | } |
cdddbdbc | 2506 | |
4d7b1503 DW |
2507 | /* ensure that super->buf is large enough when all raid devices |
2508 | * are migrating | |
2509 | */ | |
2510 | if (__le32_to_cpu(mpb->mpb_size) + space_needed > super->len) { | |
2511 | void *buf; | |
2512 | ||
2513 | len = ROUND_UP(__le32_to_cpu(mpb->mpb_size) + space_needed, 512); | |
2514 | if (posix_memalign(&buf, 512, len) != 0) | |
2515 | return 1; | |
2516 | ||
1f45a8ad DW |
2517 | memcpy(buf, super->buf, super->len); |
2518 | memset(buf + super->len, 0, len - super->len); | |
4d7b1503 DW |
2519 | free(super->buf); |
2520 | super->buf = buf; | |
2521 | super->len = len; | |
2522 | } | |
2523 | ||
cdddbdbc DW |
2524 | return 0; |
2525 | } | |
2526 | ||
604b746f JD |
2527 | /* retrieve a pointer to the bbm log which starts after all raid devices */ |
2528 | struct bbm_log *__get_imsm_bbm_log(struct imsm_super *mpb) | |
2529 | { | |
2530 | void *ptr = NULL; | |
2531 | ||
2532 | if (__le32_to_cpu(mpb->bbm_log_size)) { | |
2533 | ptr = mpb; | |
2534 | ptr += mpb->mpb_size - __le32_to_cpu(mpb->bbm_log_size); | |
2535 | } | |
2536 | ||
2537 | return ptr; | |
2538 | } | |
2539 | ||
d23fe947 | 2540 | static void __free_imsm(struct intel_super *super, int free_disks); |
9ca2c81c | 2541 | |
cdddbdbc DW |
2542 | /* load_imsm_mpb - read matrix metadata |
2543 | * allocates super->mpb to be freed by free_super | |
2544 | */ | |
2545 | static int load_imsm_mpb(int fd, struct intel_super *super, char *devname) | |
2546 | { | |
2547 | unsigned long long dsize; | |
cdddbdbc DW |
2548 | unsigned long long sectors; |
2549 | struct stat; | |
6416d527 | 2550 | struct imsm_super *anchor; |
cdddbdbc DW |
2551 | __u32 check_sum; |
2552 | ||
cdddbdbc | 2553 | get_dev_size(fd, NULL, &dsize); |
64436f06 N |
2554 | if (dsize < 1024) { |
2555 | if (devname) | |
2556 | fprintf(stderr, | |
2557 | Name ": %s: device to small for imsm\n", | |
2558 | devname); | |
2559 | return 1; | |
2560 | } | |
cdddbdbc DW |
2561 | |
2562 | if (lseek64(fd, dsize - (512 * 2), SEEK_SET) < 0) { | |
2563 | if (devname) | |
2564 | fprintf(stderr, | |
2565 | Name ": Cannot seek to anchor block on %s: %s\n", | |
2566 | devname, strerror(errno)); | |
2567 | return 1; | |
2568 | } | |
2569 | ||
949c47a0 | 2570 | if (posix_memalign((void**)&anchor, 512, 512) != 0) { |
ad97895e DW |
2571 | if (devname) |
2572 | fprintf(stderr, | |
2573 | Name ": Failed to allocate imsm anchor buffer" | |
2574 | " on %s\n", devname); | |
2575 | return 1; | |
2576 | } | |
949c47a0 | 2577 | if (read(fd, anchor, 512) != 512) { |
cdddbdbc DW |
2578 | if (devname) |
2579 | fprintf(stderr, | |
2580 | Name ": Cannot read anchor block on %s: %s\n", | |
2581 | devname, strerror(errno)); | |
6416d527 | 2582 | free(anchor); |
cdddbdbc DW |
2583 | return 1; |
2584 | } | |
2585 | ||
6416d527 | 2586 | if (strncmp((char *) anchor->sig, MPB_SIGNATURE, MPB_SIG_LEN) != 0) { |
cdddbdbc DW |
2587 | if (devname) |
2588 | fprintf(stderr, | |
2589 | Name ": no IMSM anchor on %s\n", devname); | |
6416d527 | 2590 | free(anchor); |
cdddbdbc DW |
2591 | return 2; |
2592 | } | |
2593 | ||
d23fe947 | 2594 | __free_imsm(super, 0); |
949c47a0 DW |
2595 | super->len = ROUND_UP(anchor->mpb_size, 512); |
2596 | if (posix_memalign(&super->buf, 512, super->len) != 0) { | |
cdddbdbc DW |
2597 | if (devname) |
2598 | fprintf(stderr, | |
2599 | Name ": unable to allocate %zu byte mpb buffer\n", | |
949c47a0 | 2600 | super->len); |
6416d527 | 2601 | free(anchor); |
cdddbdbc DW |
2602 | return 2; |
2603 | } | |
949c47a0 | 2604 | memcpy(super->buf, anchor, 512); |
cdddbdbc | 2605 | |
6416d527 NB |
2606 | sectors = mpb_sectors(anchor) - 1; |
2607 | free(anchor); | |
949c47a0 | 2608 | if (!sectors) { |
ecf45690 DW |
2609 | check_sum = __gen_imsm_checksum(super->anchor); |
2610 | if (check_sum != __le32_to_cpu(super->anchor->check_sum)) { | |
2611 | if (devname) | |
2612 | fprintf(stderr, | |
2613 | Name ": IMSM checksum %x != %x on %s\n", | |
2614 | check_sum, | |
2615 | __le32_to_cpu(super->anchor->check_sum), | |
2616 | devname); | |
2617 | return 2; | |
2618 | } | |
2619 | ||
a2b97981 | 2620 | return 0; |
949c47a0 | 2621 | } |
cdddbdbc DW |
2622 | |
2623 | /* read the extended mpb */ | |
2624 | if (lseek64(fd, dsize - (512 * (2 + sectors)), SEEK_SET) < 0) { | |
2625 | if (devname) | |
2626 | fprintf(stderr, | |
2627 | Name ": Cannot seek to extended mpb on %s: %s\n", | |
2628 | devname, strerror(errno)); | |
2629 | return 1; | |
2630 | } | |
2631 | ||
f21e18ca | 2632 | if ((unsigned)read(fd, super->buf + 512, super->len - 512) != super->len - 512) { |
cdddbdbc DW |
2633 | if (devname) |
2634 | fprintf(stderr, | |
2635 | Name ": Cannot read extended mpb on %s: %s\n", | |
2636 | devname, strerror(errno)); | |
2637 | return 2; | |
2638 | } | |
2639 | ||
949c47a0 DW |
2640 | check_sum = __gen_imsm_checksum(super->anchor); |
2641 | if (check_sum != __le32_to_cpu(super->anchor->check_sum)) { | |
cdddbdbc DW |
2642 | if (devname) |
2643 | fprintf(stderr, | |
2644 | Name ": IMSM checksum %x != %x on %s\n", | |
949c47a0 | 2645 | check_sum, __le32_to_cpu(super->anchor->check_sum), |
cdddbdbc | 2646 | devname); |
db575f3b | 2647 | return 3; |
cdddbdbc DW |
2648 | } |
2649 | ||
604b746f JD |
2650 | /* FIXME the BBM log is disk specific so we cannot use this global |
2651 | * buffer for all disks. Ok for now since we only look at the global | |
2652 | * bbm_log_size parameter to gate assembly | |
2653 | */ | |
2654 | super->bbm_log = __get_imsm_bbm_log(super->anchor); | |
2655 | ||
a2b97981 DW |
2656 | return 0; |
2657 | } | |
2658 | ||
2659 | static int | |
2660 | load_and_parse_mpb(int fd, struct intel_super *super, char *devname, int keep_fd) | |
2661 | { | |
2662 | int err; | |
2663 | ||
2664 | err = load_imsm_mpb(fd, super, devname); | |
2665 | if (err) | |
2666 | return err; | |
2667 | err = load_imsm_disk(fd, super, devname, keep_fd); | |
2668 | if (err) | |
2669 | return err; | |
2670 | err = parse_raid_devices(super); | |
4d7b1503 | 2671 | |
a2b97981 | 2672 | return err; |
cdddbdbc DW |
2673 | } |
2674 | ||
ae6aad82 DW |
2675 | static void __free_imsm_disk(struct dl *d) |
2676 | { | |
2677 | if (d->fd >= 0) | |
2678 | close(d->fd); | |
2679 | if (d->devname) | |
2680 | free(d->devname); | |
0dcecb2e DW |
2681 | if (d->e) |
2682 | free(d->e); | |
ae6aad82 DW |
2683 | free(d); |
2684 | ||
2685 | } | |
1a64be56 | 2686 | |
cdddbdbc DW |
2687 | static void free_imsm_disks(struct intel_super *super) |
2688 | { | |
47ee5a45 | 2689 | struct dl *d; |
cdddbdbc | 2690 | |
47ee5a45 DW |
2691 | while (super->disks) { |
2692 | d = super->disks; | |
cdddbdbc | 2693 | super->disks = d->next; |
ae6aad82 | 2694 | __free_imsm_disk(d); |
cdddbdbc | 2695 | } |
cb82edca AK |
2696 | while (super->disk_mgmt_list) { |
2697 | d = super->disk_mgmt_list; | |
2698 | super->disk_mgmt_list = d->next; | |
2699 | __free_imsm_disk(d); | |
2700 | } | |
47ee5a45 DW |
2701 | while (super->missing) { |
2702 | d = super->missing; | |
2703 | super->missing = d->next; | |
2704 | __free_imsm_disk(d); | |
2705 | } | |
2706 | ||
cdddbdbc DW |
2707 | } |
2708 | ||
9ca2c81c | 2709 | /* free all the pieces hanging off of a super pointer */ |
d23fe947 | 2710 | static void __free_imsm(struct intel_super *super, int free_disks) |
cdddbdbc | 2711 | { |
88654014 LM |
2712 | struct intel_hba *elem, *next; |
2713 | ||
9ca2c81c | 2714 | if (super->buf) { |
949c47a0 | 2715 | free(super->buf); |
9ca2c81c DW |
2716 | super->buf = NULL; |
2717 | } | |
d23fe947 DW |
2718 | if (free_disks) |
2719 | free_imsm_disks(super); | |
ba2de7ba | 2720 | free_devlist(super); |
88654014 LM |
2721 | elem = super->hba; |
2722 | while (elem) { | |
2723 | if (elem->path) | |
2724 | free((void *)elem->path); | |
2725 | next = elem->next; | |
2726 | free(elem); | |
2727 | elem = next; | |
88c32bb1 | 2728 | } |
88654014 | 2729 | super->hba = NULL; |
cdddbdbc DW |
2730 | } |
2731 | ||
9ca2c81c DW |
2732 | static void free_imsm(struct intel_super *super) |
2733 | { | |
d23fe947 | 2734 | __free_imsm(super, 1); |
9ca2c81c DW |
2735 | free(super); |
2736 | } | |
cdddbdbc DW |
2737 | |
2738 | static void free_super_imsm(struct supertype *st) | |
2739 | { | |
2740 | struct intel_super *super = st->sb; | |
2741 | ||
2742 | if (!super) | |
2743 | return; | |
2744 | ||
2745 | free_imsm(super); | |
2746 | st->sb = NULL; | |
2747 | } | |
2748 | ||
49133e57 | 2749 | static struct intel_super *alloc_super(void) |
c2c087e6 DW |
2750 | { |
2751 | struct intel_super *super = malloc(sizeof(*super)); | |
2752 | ||
2753 | if (super) { | |
2754 | memset(super, 0, sizeof(*super)); | |
bf5a934a | 2755 | super->current_vol = -1; |
0dcecb2e | 2756 | super->create_offset = ~((__u32 ) 0); |
88c32bb1 DW |
2757 | if (!check_env("IMSM_NO_PLATFORM")) |
2758 | super->orom = find_imsm_orom(); | |
c2c087e6 DW |
2759 | } |
2760 | ||
2761 | return super; | |
2762 | } | |
2763 | ||
cdddbdbc | 2764 | #ifndef MDASSEMBLE |
47ee5a45 DW |
2765 | /* find_missing - helper routine for load_super_imsm_all that identifies |
2766 | * disks that have disappeared from the system. This routine relies on | |
2767 | * the mpb being uptodate, which it is at load time. | |
2768 | */ | |
2769 | static int find_missing(struct intel_super *super) | |
2770 | { | |
2771 | int i; | |
2772 | struct imsm_super *mpb = super->anchor; | |
2773 | struct dl *dl; | |
2774 | struct imsm_disk *disk; | |
47ee5a45 DW |
2775 | |
2776 | for (i = 0; i < mpb->num_disks; i++) { | |
2777 | disk = __get_imsm_disk(mpb, i); | |
54c2c1ea | 2778 | dl = serial_to_dl(disk->serial, super); |
47ee5a45 DW |
2779 | if (dl) |
2780 | continue; | |
47ee5a45 DW |
2781 | |
2782 | dl = malloc(sizeof(*dl)); | |
2783 | if (!dl) | |
2784 | return 1; | |
2785 | dl->major = 0; | |
2786 | dl->minor = 0; | |
2787 | dl->fd = -1; | |
2788 | dl->devname = strdup("missing"); | |
2789 | dl->index = i; | |
2790 | serialcpy(dl->serial, disk->serial); | |
2791 | dl->disk = *disk; | |
689c9bf3 | 2792 | dl->e = NULL; |
47ee5a45 DW |
2793 | dl->next = super->missing; |
2794 | super->missing = dl; | |
2795 | } | |
2796 | ||
2797 | return 0; | |
2798 | } | |
2799 | ||
a2b97981 DW |
2800 | static struct intel_disk *disk_list_get(__u8 *serial, struct intel_disk *disk_list) |
2801 | { | |
2802 | struct intel_disk *idisk = disk_list; | |
2803 | ||
2804 | while (idisk) { | |
2805 | if (serialcmp(idisk->disk.serial, serial) == 0) | |
2806 | break; | |
2807 | idisk = idisk->next; | |
2808 | } | |
2809 | ||
2810 | return idisk; | |
2811 | } | |
2812 | ||
2813 | static int __prep_thunderdome(struct intel_super **table, int tbl_size, | |
2814 | struct intel_super *super, | |
2815 | struct intel_disk **disk_list) | |
2816 | { | |
2817 | struct imsm_disk *d = &super->disks->disk; | |
2818 | struct imsm_super *mpb = super->anchor; | |
2819 | int i, j; | |
2820 | ||
2821 | for (i = 0; i < tbl_size; i++) { | |
2822 | struct imsm_super *tbl_mpb = table[i]->anchor; | |
2823 | struct imsm_disk *tbl_d = &table[i]->disks->disk; | |
2824 | ||
2825 | if (tbl_mpb->family_num == mpb->family_num) { | |
2826 | if (tbl_mpb->check_sum == mpb->check_sum) { | |
2827 | dprintf("%s: mpb from %d:%d matches %d:%d\n", | |
2828 | __func__, super->disks->major, | |
2829 | super->disks->minor, | |
2830 | table[i]->disks->major, | |
2831 | table[i]->disks->minor); | |
2832 | break; | |
2833 | } | |
2834 | ||
2835 | if (((is_configured(d) && !is_configured(tbl_d)) || | |
2836 | is_configured(d) == is_configured(tbl_d)) && | |
2837 | tbl_mpb->generation_num < mpb->generation_num) { | |
2838 | /* current version of the mpb is a | |
2839 | * better candidate than the one in | |
2840 | * super_table, but copy over "cross | |
2841 | * generational" status | |
2842 | */ | |
2843 | struct intel_disk *idisk; | |
2844 | ||
2845 | dprintf("%s: mpb from %d:%d replaces %d:%d\n", | |
2846 | __func__, super->disks->major, | |
2847 | super->disks->minor, | |
2848 | table[i]->disks->major, | |
2849 | table[i]->disks->minor); | |
2850 | ||
2851 | idisk = disk_list_get(tbl_d->serial, *disk_list); | |
2852 | if (idisk && is_failed(&idisk->disk)) | |
2853 | tbl_d->status |= FAILED_DISK; | |
2854 | break; | |
2855 | } else { | |
2856 | struct intel_disk *idisk; | |
2857 | struct imsm_disk *disk; | |
2858 | ||
2859 | /* tbl_mpb is more up to date, but copy | |
2860 | * over cross generational status before | |
2861 | * returning | |
2862 | */ | |
2863 | disk = __serial_to_disk(d->serial, mpb, NULL); | |
2864 | if (disk && is_failed(disk)) | |
2865 | d->status |= FAILED_DISK; | |
2866 | ||
2867 | idisk = disk_list_get(d->serial, *disk_list); | |
2868 | if (idisk) { | |
2869 | idisk->owner = i; | |
2870 | if (disk && is_configured(disk)) | |
2871 | idisk->disk.status |= CONFIGURED_DISK; | |
2872 | } | |
2873 | ||
2874 | dprintf("%s: mpb from %d:%d prefer %d:%d\n", | |
2875 | __func__, super->disks->major, | |
2876 | super->disks->minor, | |
2877 | table[i]->disks->major, | |
2878 | table[i]->disks->minor); | |
2879 | ||
2880 | return tbl_size; | |
2881 | } | |
2882 | } | |
2883 | } | |
2884 | ||
2885 | if (i >= tbl_size) | |
2886 | table[tbl_size++] = super; | |
2887 | else | |
2888 | table[i] = super; | |
2889 | ||
2890 | /* update/extend the merged list of imsm_disk records */ | |
2891 | for (j = 0; j < mpb->num_disks; j++) { | |
2892 | struct imsm_disk *disk = __get_imsm_disk(mpb, j); | |
2893 | struct intel_disk *idisk; | |
2894 | ||
2895 | idisk = disk_list_get(disk->serial, *disk_list); | |
2896 | if (idisk) { | |
2897 | idisk->disk.status |= disk->status; | |
2898 | if (is_configured(&idisk->disk) || | |
2899 | is_failed(&idisk->disk)) | |
2900 | idisk->disk.status &= ~(SPARE_DISK); | |
2901 | } else { | |
2902 | idisk = calloc(1, sizeof(*idisk)); | |
2903 | if (!idisk) | |
2904 | return -1; | |
2905 | idisk->owner = IMSM_UNKNOWN_OWNER; | |
2906 | idisk->disk = *disk; | |
2907 | idisk->next = *disk_list; | |
2908 | *disk_list = idisk; | |
2909 | } | |
2910 | ||
2911 | if (serialcmp(idisk->disk.serial, d->serial) == 0) | |
2912 | idisk->owner = i; | |
2913 | } | |
2914 | ||
2915 | return tbl_size; | |
2916 | } | |
2917 | ||
2918 | static struct intel_super * | |
2919 | validate_members(struct intel_super *super, struct intel_disk *disk_list, | |
2920 | const int owner) | |
2921 | { | |
2922 | struct imsm_super *mpb = super->anchor; | |
2923 | int ok_count = 0; | |
2924 | int i; | |
2925 | ||
2926 | for (i = 0; i < mpb->num_disks; i++) { | |
2927 | struct imsm_disk *disk = __get_imsm_disk(mpb, i); | |
2928 | struct intel_disk *idisk; | |
2929 | ||
2930 | idisk = disk_list_get(disk->serial, disk_list); | |
2931 | if (idisk) { | |
2932 | if (idisk->owner == owner || | |
2933 | idisk->owner == IMSM_UNKNOWN_OWNER) | |
2934 | ok_count++; | |
2935 | else | |
2936 | dprintf("%s: '%.16s' owner %d != %d\n", | |
2937 | __func__, disk->serial, idisk->owner, | |
2938 | owner); | |
2939 | } else { | |
2940 | dprintf("%s: unknown disk %x [%d]: %.16s\n", | |
2941 | __func__, __le32_to_cpu(mpb->family_num), i, | |
2942 | disk->serial); | |
2943 | break; | |
2944 | } | |
2945 | } | |
2946 | ||
2947 | if (ok_count == mpb->num_disks) | |
2948 | return super; | |
2949 | return NULL; | |
2950 | } | |
2951 | ||
2952 | static void show_conflicts(__u32 family_num, struct intel_super *super_list) | |
2953 | { | |
2954 | struct intel_super *s; | |
2955 | ||
2956 | for (s = super_list; s; s = s->next) { | |
2957 | if (family_num != s->anchor->family_num) | |
2958 | continue; | |
2959 | fprintf(stderr, "Conflict, offlining family %#x on '%s'\n", | |
2960 | __le32_to_cpu(family_num), s->disks->devname); | |
2961 | } | |
2962 | } | |
2963 | ||
2964 | static struct intel_super * | |
2965 | imsm_thunderdome(struct intel_super **super_list, int len) | |
2966 | { | |
2967 | struct intel_super *super_table[len]; | |
2968 | struct intel_disk *disk_list = NULL; | |
2969 | struct intel_super *champion, *spare; | |
2970 | struct intel_super *s, **del; | |
2971 | int tbl_size = 0; | |
2972 | int conflict; | |
2973 | int i; | |
2974 | ||
2975 | memset(super_table, 0, sizeof(super_table)); | |
2976 | for (s = *super_list; s; s = s->next) | |
2977 | tbl_size = __prep_thunderdome(super_table, tbl_size, s, &disk_list); | |
2978 | ||
2979 | for (i = 0; i < tbl_size; i++) { | |
2980 | struct imsm_disk *d; | |
2981 | struct intel_disk *idisk; | |
2982 | struct imsm_super *mpb = super_table[i]->anchor; | |
2983 | ||
2984 | s = super_table[i]; | |
2985 | d = &s->disks->disk; | |
2986 | ||
2987 | /* 'd' must appear in merged disk list for its | |
2988 | * configuration to be valid | |
2989 | */ | |
2990 | idisk = disk_list_get(d->serial, disk_list); | |
2991 | if (idisk && idisk->owner == i) | |
2992 | s = validate_members(s, disk_list, i); | |
2993 | else | |
2994 | s = NULL; | |
2995 | ||
2996 | if (!s) | |
2997 | dprintf("%s: marking family: %#x from %d:%d offline\n", | |
2998 | __func__, mpb->family_num, | |
2999 | super_table[i]->disks->major, | |
3000 | super_table[i]->disks->minor); | |
3001 | super_table[i] = s; | |
3002 | } | |
3003 | ||
3004 | /* This is where the mdadm implementation differs from the Windows | |
3005 | * driver which has no strict concept of a container. We can only | |
3006 | * assemble one family from a container, so when returning a prodigal | |
3007 | * array member to this system the code will not be able to disambiguate | |
3008 | * the container contents that should be assembled ("foreign" versus | |
3009 | * "local"). It requires user intervention to set the orig_family_num | |
3010 | * to a new value to establish a new container. The Windows driver in | |
3011 | * this situation fixes up the volume name in place and manages the | |
3012 | * foreign array as an independent entity. | |
3013 | */ | |
3014 | s = NULL; | |
3015 | spare = NULL; | |
3016 | conflict = 0; | |
3017 | for (i = 0; i < tbl_size; i++) { | |
3018 | struct intel_super *tbl_ent = super_table[i]; | |
3019 | int is_spare = 0; | |
3020 | ||
3021 | if (!tbl_ent) | |
3022 | continue; | |
3023 | ||
3024 | if (tbl_ent->anchor->num_raid_devs == 0) { | |
3025 | spare = tbl_ent; | |
3026 | is_spare = 1; | |
3027 | } | |
3028 | ||
3029 | if (s && !is_spare) { | |
3030 | show_conflicts(tbl_ent->anchor->family_num, *super_list); | |
3031 | conflict++; | |
3032 | } else if (!s && !is_spare) | |
3033 | s = tbl_ent; | |
3034 | } | |
3035 | ||
3036 | if (!s) | |
3037 | s = spare; | |
3038 | if (!s) { | |
3039 | champion = NULL; | |
3040 | goto out; | |
3041 | } | |
3042 | champion = s; | |
3043 | ||
3044 | if (conflict) | |
3045 | fprintf(stderr, "Chose family %#x on '%s', " | |
3046 | "assemble conflicts to new container with '--update=uuid'\n", | |
3047 | __le32_to_cpu(s->anchor->family_num), s->disks->devname); | |
3048 | ||
3049 | /* collect all dl's onto 'champion', and update them to | |
3050 | * champion's version of the status | |
3051 | */ | |
3052 | for (s = *super_list; s; s = s->next) { | |
3053 | struct imsm_super *mpb = champion->anchor; | |
3054 | struct dl *dl = s->disks; | |
3055 | ||
3056 | if (s == champion) | |
3057 | continue; | |
3058 | ||
3059 | for (i = 0; i < mpb->num_disks; i++) { | |
3060 | struct imsm_disk *disk; | |
3061 | ||
3062 | disk = __serial_to_disk(dl->serial, mpb, &dl->index); | |
3063 | if (disk) { | |
3064 | dl->disk = *disk; | |
3065 | /* only set index on disks that are a member of | |
3066 | * a populated contianer, i.e. one with | |
3067 | * raid_devs | |
3068 | */ | |
3069 | if (is_failed(&dl->disk)) | |
3070 | dl->index = -2; | |
3071 | else if (is_spare(&dl->disk)) | |
3072 | dl->index = -1; | |
3073 | break; | |
3074 | } | |
3075 | } | |
3076 | ||
3077 | if (i >= mpb->num_disks) { | |
3078 | struct intel_disk *idisk; | |
3079 | ||
3080 | idisk = disk_list_get(dl->serial, disk_list); | |
ecf408e9 | 3081 | if (idisk && is_spare(&idisk->disk) && |
a2b97981 DW |
3082 | !is_failed(&idisk->disk) && !is_configured(&idisk->disk)) |
3083 | dl->index = -1; | |
3084 | else { | |
3085 | dl->index = -2; | |
3086 | continue; | |
3087 | } | |
3088 | } | |
3089 | ||
3090 | dl->next = champion->disks; | |
3091 | champion->disks = dl; | |
3092 | s->disks = NULL; | |
3093 | } | |
3094 | ||
3095 | /* delete 'champion' from super_list */ | |
3096 | for (del = super_list; *del; ) { | |
3097 | if (*del == champion) { | |
3098 | *del = (*del)->next; | |
3099 | break; | |
3100 | } else | |
3101 | del = &(*del)->next; | |
3102 | } | |
3103 | champion->next = NULL; | |
3104 | ||
3105 | out: | |
3106 | while (disk_list) { | |
3107 | struct intel_disk *idisk = disk_list; | |
3108 | ||
3109 | disk_list = disk_list->next; | |
3110 | free(idisk); | |
3111 | } | |
3112 | ||
3113 | return champion; | |
3114 | } | |
3115 | ||
cdddbdbc | 3116 | static int load_super_imsm_all(struct supertype *st, int fd, void **sbp, |
e1902a7b | 3117 | char *devname) |
cdddbdbc DW |
3118 | { |
3119 | struct mdinfo *sra; | |
a2b97981 DW |
3120 | struct intel_super *super_list = NULL; |
3121 | struct intel_super *super = NULL; | |
db575f3b | 3122 | int devnum = fd2devnum(fd); |
a2b97981 | 3123 | struct mdinfo *sd; |
db575f3b | 3124 | int retry; |
a2b97981 DW |
3125 | int err = 0; |
3126 | int i; | |
dab4a513 DW |
3127 | |
3128 | /* check if 'fd' an opened container */ | |
b526e52d | 3129 | sra = sysfs_read(fd, 0, GET_LEVEL|GET_VERSION|GET_DEVS|GET_STATE); |
cdddbdbc DW |
3130 | if (!sra) |
3131 | return 1; | |
3132 | ||
3133 | if (sra->array.major_version != -1 || | |
3134 | sra->array.minor_version != -2 || | |
1602d52c AW |
3135 | strcmp(sra->text_version, "imsm") != 0) { |
3136 | err = 1; | |
3137 | goto error; | |
3138 | } | |
a2b97981 DW |
3139 | /* load all mpbs */ |
3140 | for (sd = sra->devs, i = 0; sd; sd = sd->next, i++) { | |
49133e57 | 3141 | struct intel_super *s = alloc_super(); |
7a6ecd55 | 3142 | char nm[32]; |
a2b97981 DW |
3143 | int dfd; |
3144 | ||
3145 | err = 1; | |
3146 | if (!s) | |
3147 | goto error; | |
3148 | s->next = super_list; | |
3149 | super_list = s; | |
cdddbdbc | 3150 | |
a2b97981 | 3151 | err = 2; |
cdddbdbc | 3152 | sprintf(nm, "%d:%d", sd->disk.major, sd->disk.minor); |
e1902a7b | 3153 | dfd = dev_open(nm, O_RDWR); |
a2b97981 DW |
3154 | if (dfd < 0) |
3155 | goto error; | |
3156 | ||
e1902a7b | 3157 | err = load_and_parse_mpb(dfd, s, NULL, 1); |
db575f3b DW |
3158 | |
3159 | /* retry the load if we might have raced against mdmon */ | |
a2b97981 | 3160 | if (err == 3 && mdmon_running(devnum)) |
db575f3b DW |
3161 | for (retry = 0; retry < 3; retry++) { |
3162 | usleep(3000); | |
e1902a7b | 3163 | err = load_and_parse_mpb(dfd, s, NULL, 1); |
a2b97981 | 3164 | if (err != 3) |
db575f3b DW |
3165 | break; |
3166 | } | |
a2b97981 DW |
3167 | if (err) |
3168 | goto error; | |
cdddbdbc DW |
3169 | } |
3170 | ||
a2b97981 DW |
3171 | /* all mpbs enter, maybe one leaves */ |
3172 | super = imsm_thunderdome(&super_list, i); | |
3173 | if (!super) { | |
3174 | err = 1; | |
3175 | goto error; | |
cdddbdbc DW |
3176 | } |
3177 | ||
47ee5a45 DW |
3178 | if (find_missing(super) != 0) { |
3179 | free_imsm(super); | |
a2b97981 DW |
3180 | err = 2; |
3181 | goto error; | |
47ee5a45 | 3182 | } |
a2b97981 DW |
3183 | err = 0; |
3184 | ||
3185 | error: | |
3186 | while (super_list) { | |
3187 | struct intel_super *s = super_list; | |
3188 | ||
3189 | super_list = super_list->next; | |
3190 | free_imsm(s); | |
3191 | } | |
1602d52c | 3192 | sysfs_free(sra); |
a2b97981 DW |
3193 | |
3194 | if (err) | |
3195 | return err; | |
f7e7067b | 3196 | |
cdddbdbc | 3197 | *sbp = super; |
db575f3b | 3198 | st->container_dev = devnum; |
a2b97981 | 3199 | if (err == 0 && st->ss == NULL) { |
bf5a934a | 3200 | st->ss = &super_imsm; |
cdddbdbc DW |
3201 | st->minor_version = 0; |
3202 | st->max_devs = IMSM_MAX_DEVICES; | |
3203 | } | |
cdddbdbc DW |
3204 | return 0; |
3205 | } | |
2b959fbf N |
3206 | |
3207 | static int load_container_imsm(struct supertype *st, int fd, char *devname) | |
3208 | { | |
3209 | return load_super_imsm_all(st, fd, &st->sb, devname); | |
3210 | } | |
cdddbdbc DW |
3211 | #endif |
3212 | ||
3213 | static int load_super_imsm(struct supertype *st, int fd, char *devname) | |
3214 | { | |
3215 | struct intel_super *super; | |
3216 | int rv; | |
3217 | ||
691c6ee1 N |
3218 | if (test_partition(fd)) |
3219 | /* IMSM not allowed on partitions */ | |
3220 | return 1; | |
3221 | ||
37424f13 DW |
3222 | free_super_imsm(st); |
3223 | ||
49133e57 | 3224 | super = alloc_super(); |
cdddbdbc DW |
3225 | if (!super) { |
3226 | fprintf(stderr, | |
3227 | Name ": malloc of %zu failed.\n", | |
3228 | sizeof(*super)); | |
3229 | return 1; | |
3230 | } | |
3231 | ||
a2b97981 | 3232 | rv = load_and_parse_mpb(fd, super, devname, 0); |
cdddbdbc DW |
3233 | |
3234 | if (rv) { | |
3235 | if (devname) | |
3236 | fprintf(stderr, | |
3237 | Name ": Failed to load all information " | |
3238 | "sections on %s\n", devname); | |
3239 | free_imsm(super); | |
3240 | return rv; | |
3241 | } | |
3242 | ||
3243 | st->sb = super; | |
3244 | if (st->ss == NULL) { | |
3245 | st->ss = &super_imsm; | |
3246 | st->minor_version = 0; | |
3247 | st->max_devs = IMSM_MAX_DEVICES; | |
3248 | } | |
cdddbdbc DW |
3249 | return 0; |
3250 | } | |
3251 | ||
ef6ffade DW |
3252 | static __u16 info_to_blocks_per_strip(mdu_array_info_t *info) |
3253 | { | |
3254 | if (info->level == 1) | |
3255 | return 128; | |
3256 | return info->chunk_size >> 9; | |
3257 | } | |
3258 | ||
ff596308 | 3259 | static __u32 info_to_num_data_stripes(mdu_array_info_t *info, int num_domains) |
ef6ffade DW |
3260 | { |
3261 | __u32 num_stripes; | |
3262 | ||
3263 | num_stripes = (info->size * 2) / info_to_blocks_per_strip(info); | |
ff596308 | 3264 | num_stripes /= num_domains; |
ef6ffade DW |
3265 | |
3266 | return num_stripes; | |
3267 | } | |
3268 | ||
fcfd9599 DW |
3269 | static __u32 info_to_blocks_per_member(mdu_array_info_t *info) |
3270 | { | |
4025c288 DW |
3271 | if (info->level == 1) |
3272 | return info->size * 2; | |
3273 | else | |
3274 | return (info->size * 2) & ~(info_to_blocks_per_strip(info) - 1); | |
fcfd9599 DW |
3275 | } |
3276 | ||
4d1313e9 DW |
3277 | static void imsm_update_version_info(struct intel_super *super) |
3278 | { | |
3279 | /* update the version and attributes */ | |
3280 | struct imsm_super *mpb = super->anchor; | |
3281 | char *version; | |
3282 | struct imsm_dev *dev; | |
3283 | struct imsm_map *map; | |
3284 | int i; | |
3285 | ||
3286 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
3287 | dev = get_imsm_dev(super, i); | |
3288 | map = get_imsm_map(dev, 0); | |
3289 | if (__le32_to_cpu(dev->size_high) > 0) | |
3290 | mpb->attributes |= MPB_ATTRIB_2TB; | |
3291 | ||
3292 | /* FIXME detect when an array spans a port multiplier */ | |
3293 | #if 0 | |
3294 | mpb->attributes |= MPB_ATTRIB_PM; | |
3295 | #endif | |
3296 | ||
3297 | if (mpb->num_raid_devs > 1 || | |
3298 | mpb->attributes != MPB_ATTRIB_CHECKSUM_VERIFY) { | |
3299 | version = MPB_VERSION_ATTRIBS; | |
3300 | switch (get_imsm_raid_level(map)) { | |
3301 | case 0: mpb->attributes |= MPB_ATTRIB_RAID0; break; | |
3302 | case 1: mpb->attributes |= MPB_ATTRIB_RAID1; break; | |
3303 | case 10: mpb->attributes |= MPB_ATTRIB_RAID10; break; | |
3304 | case 5: mpb->attributes |= MPB_ATTRIB_RAID5; break; | |
3305 | } | |
3306 | } else { | |
3307 | if (map->num_members >= 5) | |
3308 | version = MPB_VERSION_5OR6_DISK_ARRAY; | |
3309 | else if (dev->status == DEV_CLONE_N_GO) | |
3310 | version = MPB_VERSION_CNG; | |
3311 | else if (get_imsm_raid_level(map) == 5) | |
3312 | version = MPB_VERSION_RAID5; | |
3313 | else if (map->num_members >= 3) | |
3314 | version = MPB_VERSION_3OR4_DISK_ARRAY; | |
3315 | else if (get_imsm_raid_level(map) == 1) | |
3316 | version = MPB_VERSION_RAID1; | |
3317 | else | |
3318 | version = MPB_VERSION_RAID0; | |
3319 | } | |
3320 | strcpy(((char *) mpb->sig) + strlen(MPB_SIGNATURE), version); | |
3321 | } | |
3322 | } | |
3323 | ||
aa534678 DW |
3324 | static int check_name(struct intel_super *super, char *name, int quiet) |
3325 | { | |
3326 | struct imsm_super *mpb = super->anchor; | |
3327 | char *reason = NULL; | |
3328 | int i; | |
3329 | ||
3330 | if (strlen(name) > MAX_RAID_SERIAL_LEN) | |
3331 | reason = "must be 16 characters or less"; | |
3332 | ||
3333 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
3334 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
3335 | ||
3336 | if (strncmp((char *) dev->volume, name, MAX_RAID_SERIAL_LEN) == 0) { | |
3337 | reason = "already exists"; | |
3338 | break; | |
3339 | } | |
3340 | } | |
3341 | ||
3342 | if (reason && !quiet) | |
3343 | fprintf(stderr, Name ": imsm volume name %s\n", reason); | |
3344 | ||
3345 | return !reason; | |
3346 | } | |
3347 | ||
8b353278 DW |
3348 | static int init_super_imsm_volume(struct supertype *st, mdu_array_info_t *info, |
3349 | unsigned long long size, char *name, | |
3350 | char *homehost, int *uuid) | |
cdddbdbc | 3351 | { |
c2c087e6 DW |
3352 | /* We are creating a volume inside a pre-existing container. |
3353 | * so st->sb is already set. | |
3354 | */ | |
3355 | struct intel_super *super = st->sb; | |
949c47a0 | 3356 | struct imsm_super *mpb = super->anchor; |
ba2de7ba | 3357 | struct intel_dev *dv; |
c2c087e6 DW |
3358 | struct imsm_dev *dev; |
3359 | struct imsm_vol *vol; | |
3360 | struct imsm_map *map; | |
3361 | int idx = mpb->num_raid_devs; | |
3362 | int i; | |
3363 | unsigned long long array_blocks; | |
2c092cad | 3364 | size_t size_old, size_new; |
ff596308 | 3365 | __u32 num_data_stripes; |
cdddbdbc | 3366 | |
88c32bb1 | 3367 | if (super->orom && mpb->num_raid_devs >= super->orom->vpa) { |
c2c087e6 | 3368 | fprintf(stderr, Name": This imsm-container already has the " |
88c32bb1 | 3369 | "maximum of %d volumes\n", super->orom->vpa); |
c2c087e6 DW |
3370 | return 0; |
3371 | } | |
3372 | ||
2c092cad DW |
3373 | /* ensure the mpb is large enough for the new data */ |
3374 | size_old = __le32_to_cpu(mpb->mpb_size); | |
3375 | size_new = disks_to_mpb_size(info->nr_disks); | |
3376 | if (size_new > size_old) { | |
3377 | void *mpb_new; | |
3378 | size_t size_round = ROUND_UP(size_new, 512); | |
3379 | ||
3380 | if (posix_memalign(&mpb_new, 512, size_round) != 0) { | |
3381 | fprintf(stderr, Name": could not allocate new mpb\n"); | |
3382 | return 0; | |
3383 | } | |
3384 | memcpy(mpb_new, mpb, size_old); | |
3385 | free(mpb); | |
3386 | mpb = mpb_new; | |
949c47a0 | 3387 | super->anchor = mpb_new; |
2c092cad DW |
3388 | mpb->mpb_size = __cpu_to_le32(size_new); |
3389 | memset(mpb_new + size_old, 0, size_round - size_old); | |
3390 | } | |
bf5a934a | 3391 | super->current_vol = idx; |
d23fe947 DW |
3392 | /* when creating the first raid device in this container set num_disks |
3393 | * to zero, i.e. delete this spare and add raid member devices in | |
3394 | * add_to_super_imsm_volume() | |
3395 | */ | |
3396 | if (super->current_vol == 0) | |
3397 | mpb->num_disks = 0; | |
5a038140 | 3398 | |
aa534678 DW |
3399 | if (!check_name(super, name, 0)) |
3400 | return 0; | |
ba2de7ba DW |
3401 | dv = malloc(sizeof(*dv)); |
3402 | if (!dv) { | |
3403 | fprintf(stderr, Name ": failed to allocate device list entry\n"); | |
3404 | return 0; | |
3405 | } | |
949c47a0 DW |
3406 | dev = malloc(sizeof(*dev) + sizeof(__u32) * (info->raid_disks - 1)); |
3407 | if (!dev) { | |
ba2de7ba | 3408 | free(dv); |
949c47a0 DW |
3409 | fprintf(stderr, Name": could not allocate raid device\n"); |
3410 | return 0; | |
3411 | } | |
c2c087e6 | 3412 | strncpy((char *) dev->volume, name, MAX_RAID_SERIAL_LEN); |
03bcbc65 DW |
3413 | if (info->level == 1) |
3414 | array_blocks = info_to_blocks_per_member(info); | |
3415 | else | |
3416 | array_blocks = calc_array_size(info->level, info->raid_disks, | |
3417 | info->layout, info->chunk_size, | |
3418 | info->size*2); | |
979d38be DW |
3419 | /* round array size down to closest MB */ |
3420 | array_blocks = (array_blocks >> SECT_PER_MB_SHIFT) << SECT_PER_MB_SHIFT; | |
3421 | ||
c2c087e6 DW |
3422 | dev->size_low = __cpu_to_le32((__u32) array_blocks); |
3423 | dev->size_high = __cpu_to_le32((__u32) (array_blocks >> 32)); | |
3424 | dev->status = __cpu_to_le32(0); | |
3425 | dev->reserved_blocks = __cpu_to_le32(0); | |
3426 | vol = &dev->vol; | |
3427 | vol->migr_state = 0; | |
1484e727 | 3428 | set_migr_type(dev, MIGR_INIT); |
c2c087e6 | 3429 | vol->dirty = 0; |
f8f603f1 | 3430 | vol->curr_migr_unit = 0; |
a965f303 | 3431 | map = get_imsm_map(dev, 0); |
0dcecb2e | 3432 | map->pba_of_lba0 = __cpu_to_le32(super->create_offset); |
fcfd9599 | 3433 | map->blocks_per_member = __cpu_to_le32(info_to_blocks_per_member(info)); |
ef6ffade | 3434 | map->blocks_per_strip = __cpu_to_le16(info_to_blocks_per_strip(info)); |
0556e1a2 | 3435 | map->failed_disk_num = ~0; |
c2c087e6 DW |
3436 | map->map_state = info->level ? IMSM_T_STATE_UNINITIALIZED : |
3437 | IMSM_T_STATE_NORMAL; | |
252d23c0 | 3438 | map->ddf = 1; |
ef6ffade DW |
3439 | |
3440 | if (info->level == 1 && info->raid_disks > 2) { | |
38950822 AW |
3441 | free(dev); |
3442 | free(dv); | |
ef6ffade DW |
3443 | fprintf(stderr, Name": imsm does not support more than 2 disks" |
3444 | "in a raid1 volume\n"); | |
3445 | return 0; | |
3446 | } | |
81062a36 DW |
3447 | |
3448 | map->raid_level = info->level; | |
4d1313e9 | 3449 | if (info->level == 10) { |
c2c087e6 | 3450 | map->raid_level = 1; |
4d1313e9 | 3451 | map->num_domains = info->raid_disks / 2; |
81062a36 DW |
3452 | } else if (info->level == 1) |
3453 | map->num_domains = info->raid_disks; | |
3454 | else | |
ff596308 | 3455 | map->num_domains = 1; |
81062a36 | 3456 | |
ff596308 DW |
3457 | num_data_stripes = info_to_num_data_stripes(info, map->num_domains); |
3458 | map->num_data_stripes = __cpu_to_le32(num_data_stripes); | |
ef6ffade | 3459 | |
c2c087e6 DW |
3460 | map->num_members = info->raid_disks; |
3461 | for (i = 0; i < map->num_members; i++) { | |
3462 | /* initialized in add_to_super */ | |
4eb26970 | 3463 | set_imsm_ord_tbl_ent(map, i, IMSM_ORD_REBUILD); |
c2c087e6 | 3464 | } |
949c47a0 | 3465 | mpb->num_raid_devs++; |
ba2de7ba DW |
3466 | |
3467 | dv->dev = dev; | |
3468 | dv->index = super->current_vol; | |
3469 | dv->next = super->devlist; | |
3470 | super->devlist = dv; | |
c2c087e6 | 3471 | |
4d1313e9 DW |
3472 | imsm_update_version_info(super); |
3473 | ||
c2c087e6 | 3474 | return 1; |
cdddbdbc DW |
3475 | } |
3476 | ||
bf5a934a DW |
3477 | static int init_super_imsm(struct supertype *st, mdu_array_info_t *info, |
3478 | unsigned long long size, char *name, | |
3479 | char *homehost, int *uuid) | |
3480 | { | |
3481 | /* This is primarily called by Create when creating a new array. | |
3482 | * We will then get add_to_super called for each component, and then | |
3483 | * write_init_super called to write it out to each device. | |
3484 | * For IMSM, Create can create on fresh devices or on a pre-existing | |
3485 | * array. | |
3486 | * To create on a pre-existing array a different method will be called. | |
3487 | * This one is just for fresh drives. | |
3488 | */ | |
3489 | struct intel_super *super; | |
3490 | struct imsm_super *mpb; | |
3491 | size_t mpb_size; | |
4d1313e9 | 3492 | char *version; |
bf5a934a | 3493 | |
bf5a934a | 3494 | if (st->sb) |
e683ca88 DW |
3495 | return init_super_imsm_volume(st, info, size, name, homehost, uuid); |
3496 | ||
3497 | if (info) | |
3498 | mpb_size = disks_to_mpb_size(info->nr_disks); | |
3499 | else | |
3500 | mpb_size = 512; | |
bf5a934a | 3501 | |
49133e57 | 3502 | super = alloc_super(); |
e683ca88 | 3503 | if (super && posix_memalign(&super->buf, 512, mpb_size) != 0) { |
bf5a934a | 3504 | free(super); |
e683ca88 DW |
3505 | super = NULL; |
3506 | } | |
3507 | if (!super) { | |
3508 | fprintf(stderr, Name | |
3509 | ": %s could not allocate superblock\n", __func__); | |
bf5a934a DW |
3510 | return 0; |
3511 | } | |
e683ca88 | 3512 | memset(super->buf, 0, mpb_size); |
ef649044 | 3513 | mpb = super->buf; |
e683ca88 DW |
3514 | mpb->mpb_size = __cpu_to_le32(mpb_size); |
3515 | st->sb = super; | |
3516 | ||
3517 | if (info == NULL) { | |
3518 | /* zeroing superblock */ | |
3519 | return 0; | |
3520 | } | |
bf5a934a | 3521 | |
4d1313e9 DW |
3522 | mpb->attributes = MPB_ATTRIB_CHECKSUM_VERIFY; |
3523 | ||
3524 | version = (char *) mpb->sig; | |
3525 | strcpy(version, MPB_SIGNATURE); | |
3526 | version += strlen(MPB_SIGNATURE); | |
3527 | strcpy(version, MPB_VERSION_RAID0); | |
bf5a934a | 3528 | |
bf5a934a DW |
3529 | return 1; |
3530 | } | |
3531 | ||
0e600426 | 3532 | #ifndef MDASSEMBLE |
f20c3968 | 3533 | static int add_to_super_imsm_volume(struct supertype *st, mdu_disk_info_t *dk, |
bf5a934a DW |
3534 | int fd, char *devname) |
3535 | { | |
3536 | struct intel_super *super = st->sb; | |
d23fe947 | 3537 | struct imsm_super *mpb = super->anchor; |
bf5a934a DW |
3538 | struct dl *dl; |
3539 | struct imsm_dev *dev; | |
3540 | struct imsm_map *map; | |
4eb26970 | 3541 | int slot; |
bf5a934a | 3542 | |
949c47a0 | 3543 | dev = get_imsm_dev(super, super->current_vol); |
a965f303 | 3544 | map = get_imsm_map(dev, 0); |
bf5a934a | 3545 | |
208933a7 N |
3546 | if (! (dk->state & (1<<MD_DISK_SYNC))) { |
3547 | fprintf(stderr, Name ": %s: Cannot add spare devices to IMSM volume\n", | |
3548 | devname); | |
3549 | return 1; | |
3550 | } | |
3551 | ||
efb30e7f DW |
3552 | if (fd == -1) { |
3553 | /* we're doing autolayout so grab the pre-marked (in | |
3554 | * validate_geometry) raid_disk | |
3555 | */ | |
3556 | for (dl = super->disks; dl; dl = dl->next) | |
3557 | if (dl->raiddisk == dk->raid_disk) | |
3558 | break; | |
3559 | } else { | |
3560 | for (dl = super->disks; dl ; dl = dl->next) | |
3561 | if (dl->major == dk->major && | |
3562 | dl->minor == dk->minor) | |
3563 | break; | |
3564 | } | |
d23fe947 | 3565 | |
208933a7 N |
3566 | if (!dl) { |
3567 | fprintf(stderr, Name ": %s is not a member of the same container\n", devname); | |
f20c3968 | 3568 | return 1; |
208933a7 | 3569 | } |
bf5a934a | 3570 | |
d23fe947 DW |
3571 | /* add a pristine spare to the metadata */ |
3572 | if (dl->index < 0) { | |
3573 | dl->index = super->anchor->num_disks; | |
3574 | super->anchor->num_disks++; | |
3575 | } | |
4eb26970 DW |
3576 | /* Check the device has not already been added */ |
3577 | slot = get_imsm_disk_slot(map, dl->index); | |
3578 | if (slot >= 0 && | |
98130f40 | 3579 | (get_imsm_ord_tbl_ent(dev, slot, -1) & IMSM_ORD_REBUILD) == 0) { |
4eb26970 DW |
3580 | fprintf(stderr, Name ": %s has been included in this array twice\n", |
3581 | devname); | |
3582 | return 1; | |
3583 | } | |
be73972f | 3584 | set_imsm_ord_tbl_ent(map, dk->number, dl->index); |
ee5aad5a | 3585 | dl->disk.status = CONFIGURED_DISK; |
d23fe947 DW |
3586 | |
3587 | /* if we are creating the first raid device update the family number */ | |
3588 | if (super->current_vol == 0) { | |
3589 | __u32 sum; | |
3590 | struct imsm_dev *_dev = __get_imsm_dev(mpb, 0); | |
3591 | struct imsm_disk *_disk = __get_imsm_disk(mpb, dl->index); | |
3592 | ||
791b666a AW |
3593 | if (!_dev || !_disk) { |
3594 | fprintf(stderr, Name ": BUG mpb setup error\n"); | |
3595 | return 1; | |
3596 | } | |
d23fe947 DW |
3597 | *_dev = *dev; |
3598 | *_disk = dl->disk; | |
148acb7b DW |
3599 | sum = random32(); |
3600 | sum += __gen_imsm_checksum(mpb); | |
d23fe947 | 3601 | mpb->family_num = __cpu_to_le32(sum); |
148acb7b | 3602 | mpb->orig_family_num = mpb->family_num; |
d23fe947 | 3603 | } |
f20c3968 DW |
3604 | |
3605 | return 0; | |
bf5a934a DW |
3606 | } |
3607 | ||
88654014 | 3608 | |
f20c3968 | 3609 | static int add_to_super_imsm(struct supertype *st, mdu_disk_info_t *dk, |
88654014 | 3610 | int fd, char *devname) |
cdddbdbc | 3611 | { |
c2c087e6 | 3612 | struct intel_super *super = st->sb; |
c2c087e6 DW |
3613 | struct dl *dd; |
3614 | unsigned long long size; | |
f2f27e63 | 3615 | __u32 id; |
c2c087e6 DW |
3616 | int rv; |
3617 | struct stat stb; | |
3618 | ||
88654014 LM |
3619 | /* If we are on an RAID enabled platform check that the disk is |
3620 | * attached to the raid controller. | |
3621 | * We do not need to test disks attachment for container based additions, | |
3622 | * they shall be already tested when container was created/assembled. | |
88c32bb1 | 3623 | */ |
88654014 LM |
3624 | if ((fd != -1) && !check_env("IMSM_NO_PLATFORM")) { |
3625 | struct sys_dev *hba_name; | |
3626 | struct intel_hba *hba; | |
3627 | ||
3628 | hba_name = find_disk_attached_hba(fd, NULL); | |
3629 | if (!hba_name) { | |
3630 | fprintf(stderr, | |
3631 | Name ": %s is not attached to Intel(R) RAID controller.\n", | |
3632 | devname ? : "disk"); | |
3633 | return 1; | |
3634 | } | |
3635 | rv = attach_hba_to_super(super, hba_name, devname); | |
3636 | switch (rv) { | |
3637 | case 2: | |
3638 | fprintf(stderr, Name ": %s is attached to Intel(R) %s RAID " | |
3639 | "controller (%s),\n but the container is assigned to Intel(R) " | |
3640 | "%s RAID controller (", | |
3641 | devname, | |
3642 | get_sys_dev_type(hba_name->type), | |
3643 | hba_name->pci_id ? : "Err!", | |
3644 | get_sys_dev_type(hba_name->type)); | |
3645 | ||
3646 | hba = super->hba; | |
3647 | while (hba) { | |
3648 | fprintf(stderr, "%s", hba->pci_id ? : "Err!"); | |
3649 | if (hba->next) | |
3650 | fprintf(stderr, ", "); | |
3651 | hba = hba->next; | |
3652 | } | |
3653 | ||
3654 | fprintf(stderr, ").\n" | |
3655 | " Mixing devices attached to different controllers " | |
3656 | "is not allowed.\n"); | |
3657 | free_sys_dev(&hba_name); | |
3658 | return 1; | |
3659 | } | |
3660 | free_sys_dev(&hba_name); | |
88c32bb1 DW |
3661 | } |
3662 | ||
f20c3968 DW |
3663 | if (super->current_vol >= 0) |
3664 | return add_to_super_imsm_volume(st, dk, fd, devname); | |
bf5a934a | 3665 | |
c2c087e6 DW |
3666 | fstat(fd, &stb); |
3667 | dd = malloc(sizeof(*dd)); | |
b9f594fe | 3668 | if (!dd) { |
c2c087e6 DW |
3669 | fprintf(stderr, |
3670 | Name ": malloc failed %s:%d.\n", __func__, __LINE__); | |
f20c3968 | 3671 | return 1; |
c2c087e6 DW |
3672 | } |
3673 | memset(dd, 0, sizeof(*dd)); | |
3674 | dd->major = major(stb.st_rdev); | |
3675 | dd->minor = minor(stb.st_rdev); | |
b9f594fe | 3676 | dd->index = -1; |
c2c087e6 | 3677 | dd->devname = devname ? strdup(devname) : NULL; |
c2c087e6 | 3678 | dd->fd = fd; |
689c9bf3 | 3679 | dd->e = NULL; |
1a64be56 | 3680 | dd->action = DISK_ADD; |
c2c087e6 | 3681 | rv = imsm_read_serial(fd, devname, dd->serial); |
32ba9157 | 3682 | if (rv) { |
c2c087e6 | 3683 | fprintf(stderr, |
0030e8d6 | 3684 | Name ": failed to retrieve scsi serial, aborting\n"); |
949c47a0 | 3685 | free(dd); |
0030e8d6 | 3686 | abort(); |
c2c087e6 DW |
3687 | } |
3688 | ||
c2c087e6 DW |
3689 | get_dev_size(fd, NULL, &size); |
3690 | size /= 512; | |
1f24f035 | 3691 | serialcpy(dd->disk.serial, dd->serial); |
b9f594fe | 3692 | dd->disk.total_blocks = __cpu_to_le32(size); |
ee5aad5a | 3693 | dd->disk.status = SPARE_DISK; |
c2c087e6 | 3694 | if (sysfs_disk_to_scsi_id(fd, &id) == 0) |
b9f594fe | 3695 | dd->disk.scsi_id = __cpu_to_le32(id); |
c2c087e6 | 3696 | else |
b9f594fe | 3697 | dd->disk.scsi_id = __cpu_to_le32(0); |
43dad3d6 DW |
3698 | |
3699 | if (st->update_tail) { | |
1a64be56 LM |
3700 | dd->next = super->disk_mgmt_list; |
3701 | super->disk_mgmt_list = dd; | |
43dad3d6 DW |
3702 | } else { |
3703 | dd->next = super->disks; | |
3704 | super->disks = dd; | |
3705 | } | |
f20c3968 DW |
3706 | |
3707 | return 0; | |
cdddbdbc DW |
3708 | } |
3709 | ||
1a64be56 LM |
3710 | |
3711 | static int remove_from_super_imsm(struct supertype *st, mdu_disk_info_t *dk) | |
3712 | { | |
3713 | struct intel_super *super = st->sb; | |
3714 | struct dl *dd; | |
3715 | ||
3716 | /* remove from super works only in mdmon - for communication | |
3717 | * manager - monitor. Check if communication memory buffer | |
3718 | * is prepared. | |
3719 | */ | |
3720 | if (!st->update_tail) { | |
3721 | fprintf(stderr, | |
3722 | Name ": %s shall be used in mdmon context only" | |
3723 | "(line %d).\n", __func__, __LINE__); | |
3724 | return 1; | |
3725 | } | |
3726 | dd = malloc(sizeof(*dd)); | |
3727 | if (!dd) { | |
3728 | fprintf(stderr, | |
3729 | Name ": malloc failed %s:%d.\n", __func__, __LINE__); | |
3730 | return 1; | |
3731 | } | |
3732 | memset(dd, 0, sizeof(*dd)); | |
3733 | dd->major = dk->major; | |
3734 | dd->minor = dk->minor; | |
3735 | dd->index = -1; | |
3736 | dd->fd = -1; | |
3737 | dd->disk.status = SPARE_DISK; | |
3738 | dd->action = DISK_REMOVE; | |
3739 | ||
3740 | dd->next = super->disk_mgmt_list; | |
3741 | super->disk_mgmt_list = dd; | |
3742 | ||
3743 | ||
3744 | return 0; | |
3745 | } | |
3746 | ||
f796af5d DW |
3747 | static int store_imsm_mpb(int fd, struct imsm_super *mpb); |
3748 | ||
3749 | static union { | |
3750 | char buf[512]; | |
3751 | struct imsm_super anchor; | |
3752 | } spare_record __attribute__ ((aligned(512))); | |
c2c087e6 | 3753 | |
d23fe947 DW |
3754 | /* spare records have their own family number and do not have any defined raid |
3755 | * devices | |
3756 | */ | |
3757 | static int write_super_imsm_spares(struct intel_super *super, int doclose) | |
3758 | { | |
d23fe947 | 3759 | struct imsm_super *mpb = super->anchor; |
f796af5d | 3760 | struct imsm_super *spare = &spare_record.anchor; |
d23fe947 DW |
3761 | __u32 sum; |
3762 | struct dl *d; | |
3763 | ||
f796af5d DW |
3764 | spare->mpb_size = __cpu_to_le32(sizeof(struct imsm_super)), |
3765 | spare->generation_num = __cpu_to_le32(1UL), | |
3766 | spare->attributes = MPB_ATTRIB_CHECKSUM_VERIFY; | |
3767 | spare->num_disks = 1, | |
3768 | spare->num_raid_devs = 0, | |
3769 | spare->cache_size = mpb->cache_size, | |
3770 | spare->pwr_cycle_count = __cpu_to_le32(1), | |
3771 | ||
3772 | snprintf((char *) spare->sig, MAX_SIGNATURE_LENGTH, | |
3773 | MPB_SIGNATURE MPB_VERSION_RAID0); | |
d23fe947 DW |
3774 | |
3775 | for (d = super->disks; d; d = d->next) { | |
8796fdc4 | 3776 | if (d->index != -1) |
d23fe947 DW |
3777 | continue; |
3778 | ||
f796af5d DW |
3779 | spare->disk[0] = d->disk; |
3780 | sum = __gen_imsm_checksum(spare); | |
3781 | spare->family_num = __cpu_to_le32(sum); | |
3782 | spare->orig_family_num = 0; | |
3783 | sum = __gen_imsm_checksum(spare); | |
3784 | spare->check_sum = __cpu_to_le32(sum); | |
d23fe947 | 3785 | |
f796af5d | 3786 | if (store_imsm_mpb(d->fd, spare)) { |
d23fe947 DW |
3787 | fprintf(stderr, "%s: failed for device %d:%d %s\n", |
3788 | __func__, d->major, d->minor, strerror(errno)); | |
e74255d9 | 3789 | return 1; |
d23fe947 DW |
3790 | } |
3791 | if (doclose) { | |
3792 | close(d->fd); | |
3793 | d->fd = -1; | |
3794 | } | |
3795 | } | |
3796 | ||
e74255d9 | 3797 | return 0; |
d23fe947 DW |
3798 | } |
3799 | ||
36988a3d | 3800 | static int write_super_imsm(struct supertype *st, int doclose) |
cdddbdbc | 3801 | { |
36988a3d | 3802 | struct intel_super *super = st->sb; |
949c47a0 | 3803 | struct imsm_super *mpb = super->anchor; |
c2c087e6 DW |
3804 | struct dl *d; |
3805 | __u32 generation; | |
3806 | __u32 sum; | |
d23fe947 | 3807 | int spares = 0; |
949c47a0 | 3808 | int i; |
a48ac0a8 | 3809 | __u32 mpb_size = sizeof(struct imsm_super) - sizeof(struct imsm_disk); |
36988a3d | 3810 | int num_disks = 0; |
cdddbdbc | 3811 | |
c2c087e6 DW |
3812 | /* 'generation' is incremented everytime the metadata is written */ |
3813 | generation = __le32_to_cpu(mpb->generation_num); | |
3814 | generation++; | |
3815 | mpb->generation_num = __cpu_to_le32(generation); | |
3816 | ||
148acb7b DW |
3817 | /* fix up cases where previous mdadm releases failed to set |
3818 | * orig_family_num | |
3819 | */ | |
3820 | if (mpb->orig_family_num == 0) | |
3821 | mpb->orig_family_num = mpb->family_num; | |
3822 | ||
d23fe947 | 3823 | for (d = super->disks; d; d = d->next) { |
8796fdc4 | 3824 | if (d->index == -1) |
d23fe947 | 3825 | spares++; |
36988a3d | 3826 | else { |
d23fe947 | 3827 | mpb->disk[d->index] = d->disk; |
36988a3d AK |
3828 | num_disks++; |
3829 | } | |
d23fe947 | 3830 | } |
36988a3d | 3831 | for (d = super->missing; d; d = d->next) { |
47ee5a45 | 3832 | mpb->disk[d->index] = d->disk; |
36988a3d AK |
3833 | num_disks++; |
3834 | } | |
3835 | mpb->num_disks = num_disks; | |
3836 | mpb_size += sizeof(struct imsm_disk) * mpb->num_disks; | |
b9f594fe | 3837 | |
949c47a0 DW |
3838 | for (i = 0; i < mpb->num_raid_devs; i++) { |
3839 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
36988a3d AK |
3840 | struct imsm_dev *dev2 = get_imsm_dev(super, i); |
3841 | if (dev && dev2) { | |
3842 | imsm_copy_dev(dev, dev2); | |
3843 | mpb_size += sizeof_imsm_dev(dev, 0); | |
3844 | } | |
949c47a0 | 3845 | } |
a48ac0a8 DW |
3846 | mpb_size += __le32_to_cpu(mpb->bbm_log_size); |
3847 | mpb->mpb_size = __cpu_to_le32(mpb_size); | |
949c47a0 | 3848 | |
c2c087e6 | 3849 | /* recalculate checksum */ |
949c47a0 | 3850 | sum = __gen_imsm_checksum(mpb); |
c2c087e6 DW |
3851 | mpb->check_sum = __cpu_to_le32(sum); |
3852 | ||
d23fe947 | 3853 | /* write the mpb for disks that compose raid devices */ |
c2c087e6 | 3854 | for (d = super->disks; d ; d = d->next) { |
d23fe947 DW |
3855 | if (d->index < 0) |
3856 | continue; | |
f796af5d | 3857 | if (store_imsm_mpb(d->fd, mpb)) |
c2c087e6 DW |
3858 | fprintf(stderr, "%s: failed for device %d:%d %s\n", |
3859 | __func__, d->major, d->minor, strerror(errno)); | |
c2c087e6 DW |
3860 | if (doclose) { |
3861 | close(d->fd); | |
3862 | d->fd = -1; | |
3863 | } | |
3864 | } | |
3865 | ||
d23fe947 DW |
3866 | if (spares) |
3867 | return write_super_imsm_spares(super, doclose); | |
3868 | ||
e74255d9 | 3869 | return 0; |
c2c087e6 DW |
3870 | } |
3871 | ||
0e600426 | 3872 | |
9b1fb677 | 3873 | static int create_array(struct supertype *st, int dev_idx) |
43dad3d6 DW |
3874 | { |
3875 | size_t len; | |
3876 | struct imsm_update_create_array *u; | |
3877 | struct intel_super *super = st->sb; | |
9b1fb677 | 3878 | struct imsm_dev *dev = get_imsm_dev(super, dev_idx); |
54c2c1ea DW |
3879 | struct imsm_map *map = get_imsm_map(dev, 0); |
3880 | struct disk_info *inf; | |
3881 | struct imsm_disk *disk; | |
3882 | int i; | |
43dad3d6 | 3883 | |
54c2c1ea DW |
3884 | len = sizeof(*u) - sizeof(*dev) + sizeof_imsm_dev(dev, 0) + |
3885 | sizeof(*inf) * map->num_members; | |
43dad3d6 DW |
3886 | u = malloc(len); |
3887 | if (!u) { | |
3888 | fprintf(stderr, "%s: failed to allocate update buffer\n", | |
3889 | __func__); | |
3890 | return 1; | |
3891 | } | |
3892 | ||
3893 | u->type = update_create_array; | |
9b1fb677 | 3894 | u->dev_idx = dev_idx; |
43dad3d6 | 3895 | imsm_copy_dev(&u->dev, dev); |
54c2c1ea DW |
3896 | inf = get_disk_info(u); |
3897 | for (i = 0; i < map->num_members; i++) { | |
98130f40 | 3898 | int idx = get_imsm_disk_idx(dev, i, -1); |
9b1fb677 | 3899 | |
54c2c1ea DW |
3900 | disk = get_imsm_disk(super, idx); |
3901 | serialcpy(inf[i].serial, disk->serial); | |
3902 | } | |
43dad3d6 DW |
3903 | append_metadata_update(st, u, len); |
3904 | ||
3905 | return 0; | |
3906 | } | |
3907 | ||
1a64be56 | 3908 | static int mgmt_disk(struct supertype *st) |
43dad3d6 DW |
3909 | { |
3910 | struct intel_super *super = st->sb; | |
3911 | size_t len; | |
1a64be56 | 3912 | struct imsm_update_add_remove_disk *u; |
43dad3d6 | 3913 | |
1a64be56 | 3914 | if (!super->disk_mgmt_list) |
43dad3d6 DW |
3915 | return 0; |
3916 | ||
3917 | len = sizeof(*u); | |
3918 | u = malloc(len); | |
3919 | if (!u) { | |
3920 | fprintf(stderr, "%s: failed to allocate update buffer\n", | |
3921 | __func__); | |
3922 | return 1; | |
3923 | } | |
3924 | ||
1a64be56 | 3925 | u->type = update_add_remove_disk; |
43dad3d6 DW |
3926 | append_metadata_update(st, u, len); |
3927 | ||
3928 | return 0; | |
3929 | } | |
3930 | ||
c2c087e6 DW |
3931 | static int write_init_super_imsm(struct supertype *st) |
3932 | { | |
9b1fb677 DW |
3933 | struct intel_super *super = st->sb; |
3934 | int current_vol = super->current_vol; | |
3935 | ||
3936 | /* we are done with current_vol reset it to point st at the container */ | |
3937 | super->current_vol = -1; | |
3938 | ||
8273f55e | 3939 | if (st->update_tail) { |
43dad3d6 DW |
3940 | /* queue the recently created array / added disk |
3941 | * as a metadata update */ | |
43dad3d6 | 3942 | int rv; |
8273f55e | 3943 | |
43dad3d6 | 3944 | /* determine if we are creating a volume or adding a disk */ |
9b1fb677 | 3945 | if (current_vol < 0) { |
1a64be56 LM |
3946 | /* in the mgmt (add/remove) disk case we are running |
3947 | * in mdmon context, so don't close fd's | |
43dad3d6 | 3948 | */ |
1a64be56 | 3949 | return mgmt_disk(st); |
43dad3d6 | 3950 | } else |
9b1fb677 | 3951 | rv = create_array(st, current_vol); |
8273f55e | 3952 | |
43dad3d6 | 3953 | return rv; |
d682f344 N |
3954 | } else { |
3955 | struct dl *d; | |
3956 | for (d = super->disks; d; d = d->next) | |
3957 | Kill(d->devname, NULL, 0, 1, 1); | |
36988a3d | 3958 | return write_super_imsm(st, 1); |
d682f344 | 3959 | } |
cdddbdbc | 3960 | } |
0e600426 | 3961 | #endif |
cdddbdbc | 3962 | |
e683ca88 | 3963 | static int store_super_imsm(struct supertype *st, int fd) |
cdddbdbc | 3964 | { |
e683ca88 DW |
3965 | struct intel_super *super = st->sb; |
3966 | struct imsm_super *mpb = super ? super->anchor : NULL; | |
551c80c1 | 3967 | |
e683ca88 | 3968 | if (!mpb) |
ad97895e DW |
3969 | return 1; |
3970 | ||
1799c9e8 | 3971 | #ifndef MDASSEMBLE |
e683ca88 | 3972 | return store_imsm_mpb(fd, mpb); |
1799c9e8 N |
3973 | #else |
3974 | return 1; | |
3975 | #endif | |
cdddbdbc DW |
3976 | } |
3977 | ||
0e600426 N |
3978 | static int imsm_bbm_log_size(struct imsm_super *mpb) |
3979 | { | |
3980 | return __le32_to_cpu(mpb->bbm_log_size); | |
3981 | } | |
3982 | ||
3983 | #ifndef MDASSEMBLE | |
cdddbdbc DW |
3984 | static int validate_geometry_imsm_container(struct supertype *st, int level, |
3985 | int layout, int raiddisks, int chunk, | |
c2c087e6 | 3986 | unsigned long long size, char *dev, |
2c514b71 NB |
3987 | unsigned long long *freesize, |
3988 | int verbose) | |
cdddbdbc | 3989 | { |
c2c087e6 DW |
3990 | int fd; |
3991 | unsigned long long ldsize; | |
88c32bb1 | 3992 | const struct imsm_orom *orom; |
cdddbdbc | 3993 | |
c2c087e6 DW |
3994 | if (level != LEVEL_CONTAINER) |
3995 | return 0; | |
3996 | if (!dev) | |
3997 | return 1; | |
3998 | ||
88c32bb1 DW |
3999 | if (check_env("IMSM_NO_PLATFORM")) |
4000 | orom = NULL; | |
4001 | else | |
4002 | orom = find_imsm_orom(); | |
4003 | if (orom && raiddisks > orom->tds) { | |
4004 | if (verbose) | |
4005 | fprintf(stderr, Name ": %d exceeds maximum number of" | |
4006 | " platform supported disks: %d\n", | |
4007 | raiddisks, orom->tds); | |
4008 | return 0; | |
4009 | } | |
4010 | ||
c2c087e6 DW |
4011 | fd = open(dev, O_RDONLY|O_EXCL, 0); |
4012 | if (fd < 0) { | |
2c514b71 NB |
4013 | if (verbose) |
4014 | fprintf(stderr, Name ": imsm: Cannot open %s: %s\n", | |
4015 | dev, strerror(errno)); | |
c2c087e6 DW |
4016 | return 0; |
4017 | } | |
4018 | if (!get_dev_size(fd, dev, &ldsize)) { | |
4019 | close(fd); | |
4020 | return 0; | |
4021 | } | |
4022 | close(fd); | |
4023 | ||
4024 | *freesize = avail_size_imsm(st, ldsize >> 9); | |
4025 | ||
4026 | return 1; | |
cdddbdbc DW |
4027 | } |
4028 | ||
0dcecb2e DW |
4029 | static unsigned long long find_size(struct extent *e, int *idx, int num_extents) |
4030 | { | |
4031 | const unsigned long long base_start = e[*idx].start; | |
4032 | unsigned long long end = base_start + e[*idx].size; | |
4033 | int i; | |
4034 | ||
4035 | if (base_start == end) | |
4036 | return 0; | |
4037 | ||
4038 | *idx = *idx + 1; | |
4039 | for (i = *idx; i < num_extents; i++) { | |
4040 | /* extend overlapping extents */ | |
4041 | if (e[i].start >= base_start && | |
4042 | e[i].start <= end) { | |
4043 | if (e[i].size == 0) | |
4044 | return 0; | |
4045 | if (e[i].start + e[i].size > end) | |
4046 | end = e[i].start + e[i].size; | |
4047 | } else if (e[i].start > end) { | |
4048 | *idx = i; | |
4049 | break; | |
4050 | } | |
4051 | } | |
4052 | ||
4053 | return end - base_start; | |
4054 | } | |
4055 | ||
4056 | static unsigned long long merge_extents(struct intel_super *super, int sum_extents) | |
4057 | { | |
4058 | /* build a composite disk with all known extents and generate a new | |
4059 | * 'maxsize' given the "all disks in an array must share a common start | |
4060 | * offset" constraint | |
4061 | */ | |
4062 | struct extent *e = calloc(sum_extents, sizeof(*e)); | |
4063 | struct dl *dl; | |
4064 | int i, j; | |
4065 | int start_extent; | |
4066 | unsigned long long pos; | |
b9d77223 | 4067 | unsigned long long start = 0; |
0dcecb2e DW |
4068 | unsigned long long maxsize; |
4069 | unsigned long reserve; | |
4070 | ||
4071 | if (!e) | |
a7dd165b | 4072 | return 0; |
0dcecb2e DW |
4073 | |
4074 | /* coalesce and sort all extents. also, check to see if we need to | |
4075 | * reserve space between member arrays | |
4076 | */ | |
4077 | j = 0; | |
4078 | for (dl = super->disks; dl; dl = dl->next) { | |
4079 | if (!dl->e) | |
4080 | continue; | |
4081 | for (i = 0; i < dl->extent_cnt; i++) | |
4082 | e[j++] = dl->e[i]; | |
4083 | } | |
4084 | qsort(e, sum_extents, sizeof(*e), cmp_extent); | |
4085 | ||
4086 | /* merge extents */ | |
4087 | i = 0; | |
4088 | j = 0; | |
4089 | while (i < sum_extents) { | |
4090 | e[j].start = e[i].start; | |
4091 | e[j].size = find_size(e, &i, sum_extents); | |
4092 | j++; | |
4093 | if (e[j-1].size == 0) | |
4094 | break; | |
4095 | } | |
4096 | ||
4097 | pos = 0; | |
4098 | maxsize = 0; | |
4099 | start_extent = 0; | |
4100 | i = 0; | |
4101 | do { | |
4102 | unsigned long long esize; | |
4103 | ||
4104 | esize = e[i].start - pos; | |
4105 | if (esize >= maxsize) { | |
4106 | maxsize = esize; | |
4107 | start = pos; | |
4108 | start_extent = i; | |
4109 | } | |
4110 | pos = e[i].start + e[i].size; | |
4111 | i++; | |
4112 | } while (e[i-1].size); | |
4113 | free(e); | |
4114 | ||
a7dd165b DW |
4115 | if (maxsize == 0) |
4116 | return 0; | |
4117 | ||
4118 | /* FIXME assumes volume at offset 0 is the first volume in a | |
4119 | * container | |
4120 | */ | |
0dcecb2e DW |
4121 | if (start_extent > 0) |
4122 | reserve = IMSM_RESERVED_SECTORS; /* gap between raid regions */ | |
4123 | else | |
4124 | reserve = 0; | |
4125 | ||
4126 | if (maxsize < reserve) | |
a7dd165b | 4127 | return 0; |
0dcecb2e DW |
4128 | |
4129 | super->create_offset = ~((__u32) 0); | |
4130 | if (start + reserve > super->create_offset) | |
a7dd165b | 4131 | return 0; /* start overflows create_offset */ |
0dcecb2e DW |
4132 | super->create_offset = start + reserve; |
4133 | ||
4134 | return maxsize - reserve; | |
4135 | } | |
4136 | ||
88c32bb1 DW |
4137 | static int is_raid_level_supported(const struct imsm_orom *orom, int level, int raiddisks) |
4138 | { | |
4139 | if (level < 0 || level == 6 || level == 4) | |
4140 | return 0; | |
4141 | ||
4142 | /* if we have an orom prevent invalid raid levels */ | |
4143 | if (orom) | |
4144 | switch (level) { | |
4145 | case 0: return imsm_orom_has_raid0(orom); | |
4146 | case 1: | |
4147 | if (raiddisks > 2) | |
4148 | return imsm_orom_has_raid1e(orom); | |
1c556e92 DW |
4149 | return imsm_orom_has_raid1(orom) && raiddisks == 2; |
4150 | case 10: return imsm_orom_has_raid10(orom) && raiddisks == 4; | |
4151 | case 5: return imsm_orom_has_raid5(orom) && raiddisks > 2; | |
88c32bb1 DW |
4152 | } |
4153 | else | |
4154 | return 1; /* not on an Intel RAID platform so anything goes */ | |
4155 | ||
4156 | return 0; | |
4157 | } | |
4158 | ||
35f81cbb | 4159 | #define pr_vrb(fmt, arg...) (void) (verbose && fprintf(stderr, Name fmt, ##arg)) |
6592ce37 DW |
4160 | static int |
4161 | validate_geometry_imsm_orom(struct intel_super *super, int level, int layout, | |
4162 | int raiddisks, int chunk, int verbose) | |
4163 | { | |
4164 | if (!is_raid_level_supported(super->orom, level, raiddisks)) { | |
4165 | pr_vrb(": platform does not support raid%d with %d disk%s\n", | |
4166 | level, raiddisks, raiddisks > 1 ? "s" : ""); | |
4167 | return 0; | |
4168 | } | |
4169 | if (super->orom && level != 1 && | |
4170 | !imsm_orom_has_chunk(super->orom, chunk)) { | |
4171 | pr_vrb(": platform does not support a chunk size of: %d\n", chunk); | |
4172 | return 0; | |
4173 | } | |
4174 | if (layout != imsm_level_to_layout(level)) { | |
4175 | if (level == 5) | |
4176 | pr_vrb(": imsm raid 5 only supports the left-asymmetric layout\n"); | |
4177 | else if (level == 10) | |
4178 | pr_vrb(": imsm raid 10 only supports the n2 layout\n"); | |
4179 | else | |
4180 | pr_vrb(": imsm unknown layout %#x for this raid level %d\n", | |
4181 | layout, level); | |
4182 | return 0; | |
4183 | } | |
4184 | ||
4185 | return 1; | |
4186 | } | |
4187 | ||
c2c087e6 DW |
4188 | /* validate_geometry_imsm_volume - lifted from validate_geometry_ddf_bvd |
4189 | * FIX ME add ahci details | |
4190 | */ | |
8b353278 DW |
4191 | static int validate_geometry_imsm_volume(struct supertype *st, int level, |
4192 | int layout, int raiddisks, int chunk, | |
c2c087e6 | 4193 | unsigned long long size, char *dev, |
2c514b71 NB |
4194 | unsigned long long *freesize, |
4195 | int verbose) | |
cdddbdbc | 4196 | { |
c2c087e6 DW |
4197 | struct stat stb; |
4198 | struct intel_super *super = st->sb; | |
a20d2ba5 | 4199 | struct imsm_super *mpb = super->anchor; |
c2c087e6 DW |
4200 | struct dl *dl; |
4201 | unsigned long long pos = 0; | |
4202 | unsigned long long maxsize; | |
4203 | struct extent *e; | |
4204 | int i; | |
cdddbdbc | 4205 | |
88c32bb1 DW |
4206 | /* We must have the container info already read in. */ |
4207 | if (!super) | |
c2c087e6 DW |
4208 | return 0; |
4209 | ||
6592ce37 | 4210 | if (!validate_geometry_imsm_orom(super, level, layout, raiddisks, chunk, verbose)) |
c2c087e6 | 4211 | return 0; |
c2c087e6 DW |
4212 | |
4213 | if (!dev) { | |
4214 | /* General test: make sure there is space for | |
2da8544a DW |
4215 | * 'raiddisks' device extents of size 'size' at a given |
4216 | * offset | |
c2c087e6 | 4217 | */ |
e46273eb | 4218 | unsigned long long minsize = size; |
b7528a20 | 4219 | unsigned long long start_offset = MaxSector; |
c2c087e6 DW |
4220 | int dcnt = 0; |
4221 | if (minsize == 0) | |
4222 | minsize = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
4223 | for (dl = super->disks; dl ; dl = dl->next) { | |
4224 | int found = 0; | |
4225 | ||
bf5a934a | 4226 | pos = 0; |
c2c087e6 DW |
4227 | i = 0; |
4228 | e = get_extents(super, dl); | |
4229 | if (!e) continue; | |
4230 | do { | |
4231 | unsigned long long esize; | |
4232 | esize = e[i].start - pos; | |
4233 | if (esize >= minsize) | |
4234 | found = 1; | |
b7528a20 | 4235 | if (found && start_offset == MaxSector) { |
2da8544a DW |
4236 | start_offset = pos; |
4237 | break; | |
4238 | } else if (found && pos != start_offset) { | |
4239 | found = 0; | |
4240 | break; | |
4241 | } | |
c2c087e6 DW |
4242 | pos = e[i].start + e[i].size; |
4243 | i++; | |
4244 | } while (e[i-1].size); | |
4245 | if (found) | |
4246 | dcnt++; | |
4247 | free(e); | |
4248 | } | |
4249 | if (dcnt < raiddisks) { | |
2c514b71 NB |
4250 | if (verbose) |
4251 | fprintf(stderr, Name ": imsm: Not enough " | |
4252 | "devices with space for this array " | |
4253 | "(%d < %d)\n", | |
4254 | dcnt, raiddisks); | |
c2c087e6 DW |
4255 | return 0; |
4256 | } | |
4257 | return 1; | |
4258 | } | |
0dcecb2e | 4259 | |
c2c087e6 DW |
4260 | /* This device must be a member of the set */ |
4261 | if (stat(dev, &stb) < 0) | |
4262 | return 0; | |
4263 | if ((S_IFMT & stb.st_mode) != S_IFBLK) | |
4264 | return 0; | |
4265 | for (dl = super->disks ; dl ; dl = dl->next) { | |
f21e18ca N |
4266 | if (dl->major == (int)major(stb.st_rdev) && |
4267 | dl->minor == (int)minor(stb.st_rdev)) | |
c2c087e6 DW |
4268 | break; |
4269 | } | |
4270 | if (!dl) { | |
2c514b71 NB |
4271 | if (verbose) |
4272 | fprintf(stderr, Name ": %s is not in the " | |
4273 | "same imsm set\n", dev); | |
c2c087e6 | 4274 | return 0; |
a20d2ba5 DW |
4275 | } else if (super->orom && dl->index < 0 && mpb->num_raid_devs) { |
4276 | /* If a volume is present then the current creation attempt | |
4277 | * cannot incorporate new spares because the orom may not | |
4278 | * understand this configuration (all member disks must be | |
4279 | * members of each array in the container). | |
4280 | */ | |
4281 | fprintf(stderr, Name ": %s is a spare and a volume" | |
4282 | " is already defined for this container\n", dev); | |
4283 | fprintf(stderr, Name ": The option-rom requires all member" | |
4284 | " disks to be a member of all volumes\n"); | |
4285 | return 0; | |
c2c087e6 | 4286 | } |
0dcecb2e DW |
4287 | |
4288 | /* retrieve the largest free space block */ | |
c2c087e6 DW |
4289 | e = get_extents(super, dl); |
4290 | maxsize = 0; | |
4291 | i = 0; | |
0dcecb2e DW |
4292 | if (e) { |
4293 | do { | |
4294 | unsigned long long esize; | |
4295 | ||
4296 | esize = e[i].start - pos; | |
4297 | if (esize >= maxsize) | |
4298 | maxsize = esize; | |
4299 | pos = e[i].start + e[i].size; | |
4300 | i++; | |
4301 | } while (e[i-1].size); | |
4302 | dl->e = e; | |
4303 | dl->extent_cnt = i; | |
4304 | } else { | |
4305 | if (verbose) | |
4306 | fprintf(stderr, Name ": unable to determine free space for: %s\n", | |
4307 | dev); | |
4308 | return 0; | |
4309 | } | |
4310 | if (maxsize < size) { | |
4311 | if (verbose) | |
4312 | fprintf(stderr, Name ": %s not enough space (%llu < %llu)\n", | |
4313 | dev, maxsize, size); | |
4314 | return 0; | |
4315 | } | |
4316 | ||
4317 | /* count total number of extents for merge */ | |
4318 | i = 0; | |
4319 | for (dl = super->disks; dl; dl = dl->next) | |
4320 | if (dl->e) | |
4321 | i += dl->extent_cnt; | |
4322 | ||
4323 | maxsize = merge_extents(super, i); | |
a7dd165b | 4324 | if (maxsize < size || maxsize == 0) { |
0dcecb2e DW |
4325 | if (verbose) |
4326 | fprintf(stderr, Name ": not enough space after merge (%llu < %llu)\n", | |
4327 | maxsize, size); | |
4328 | return 0; | |
0dcecb2e DW |
4329 | } |
4330 | ||
c2c087e6 DW |
4331 | *freesize = maxsize; |
4332 | ||
4333 | return 1; | |
cdddbdbc DW |
4334 | } |
4335 | ||
efb30e7f DW |
4336 | static int reserve_space(struct supertype *st, int raiddisks, |
4337 | unsigned long long size, int chunk, | |
4338 | unsigned long long *freesize) | |
4339 | { | |
4340 | struct intel_super *super = st->sb; | |
4341 | struct imsm_super *mpb = super->anchor; | |
4342 | struct dl *dl; | |
4343 | int i; | |
4344 | int extent_cnt; | |
4345 | struct extent *e; | |
4346 | unsigned long long maxsize; | |
4347 | unsigned long long minsize; | |
4348 | int cnt; | |
4349 | int used; | |
4350 | ||
4351 | /* find the largest common start free region of the possible disks */ | |
4352 | used = 0; | |
4353 | extent_cnt = 0; | |
4354 | cnt = 0; | |
4355 | for (dl = super->disks; dl; dl = dl->next) { | |
4356 | dl->raiddisk = -1; | |
4357 | ||
4358 | if (dl->index >= 0) | |
4359 | used++; | |
4360 | ||
4361 | /* don't activate new spares if we are orom constrained | |
4362 | * and there is already a volume active in the container | |
4363 | */ | |
4364 | if (super->orom && dl->index < 0 && mpb->num_raid_devs) | |
4365 | continue; | |
4366 | ||
4367 | e = get_extents(super, dl); | |
4368 | if (!e) | |
4369 | continue; | |
4370 | for (i = 1; e[i-1].size; i++) | |
4371 | ; | |
4372 | dl->e = e; | |
4373 | dl->extent_cnt = i; | |
4374 | extent_cnt += i; | |
4375 | cnt++; | |
4376 | } | |
4377 | ||
4378 | maxsize = merge_extents(super, extent_cnt); | |
4379 | minsize = size; | |
4380 | if (size == 0) | |
4381 | minsize = chunk; | |
4382 | ||
4383 | if (cnt < raiddisks || | |
4384 | (super->orom && used && used != raiddisks) || | |
a7dd165b DW |
4385 | maxsize < minsize || |
4386 | maxsize == 0) { | |
efb30e7f DW |
4387 | fprintf(stderr, Name ": not enough devices with space to create array.\n"); |
4388 | return 0; /* No enough free spaces large enough */ | |
4389 | } | |
4390 | ||
4391 | if (size == 0) { | |
4392 | size = maxsize; | |
4393 | if (chunk) { | |
4394 | size /= chunk; | |
4395 | size *= chunk; | |
4396 | } | |
4397 | } | |
4398 | ||
4399 | cnt = 0; | |
4400 | for (dl = super->disks; dl; dl = dl->next) | |
4401 | if (dl->e) | |
4402 | dl->raiddisk = cnt++; | |
4403 | ||
4404 | *freesize = size; | |
4405 | ||
4406 | return 1; | |
4407 | } | |
4408 | ||
bf5a934a DW |
4409 | static int validate_geometry_imsm(struct supertype *st, int level, int layout, |
4410 | int raiddisks, int chunk, unsigned long long size, | |
4411 | char *dev, unsigned long long *freesize, | |
4412 | int verbose) | |
4413 | { | |
4414 | int fd, cfd; | |
4415 | struct mdinfo *sra; | |
20cbe8d2 | 4416 | int is_member = 0; |
bf5a934a DW |
4417 | |
4418 | /* if given unused devices create a container | |
4419 | * if given given devices in a container create a member volume | |
4420 | */ | |
4421 | if (level == LEVEL_CONTAINER) { | |
4422 | /* Must be a fresh device to add to a container */ | |
4423 | return validate_geometry_imsm_container(st, level, layout, | |
4424 | raiddisks, chunk, size, | |
4425 | dev, freesize, | |
4426 | verbose); | |
4427 | } | |
4428 | ||
8592f29d N |
4429 | if (!dev) { |
4430 | if (st->sb && freesize) { | |
efb30e7f DW |
4431 | /* we are being asked to automatically layout a |
4432 | * new volume based on the current contents of | |
4433 | * the container. If the the parameters can be | |
4434 | * satisfied reserve_space will record the disks, | |
4435 | * start offset, and size of the volume to be | |
4436 | * created. add_to_super and getinfo_super | |
4437 | * detect when autolayout is in progress. | |
4438 | */ | |
6592ce37 DW |
4439 | if (!validate_geometry_imsm_orom(st->sb, level, layout, |
4440 | raiddisks, chunk, | |
4441 | verbose)) | |
4442 | return 0; | |
efb30e7f | 4443 | return reserve_space(st, raiddisks, size, chunk, freesize); |
8592f29d N |
4444 | } |
4445 | return 1; | |
4446 | } | |
bf5a934a DW |
4447 | if (st->sb) { |
4448 | /* creating in a given container */ | |
4449 | return validate_geometry_imsm_volume(st, level, layout, | |
4450 | raiddisks, chunk, size, | |
4451 | dev, freesize, verbose); | |
4452 | } | |
4453 | ||
bf5a934a DW |
4454 | /* This device needs to be a device in an 'imsm' container */ |
4455 | fd = open(dev, O_RDONLY|O_EXCL, 0); | |
4456 | if (fd >= 0) { | |
4457 | if (verbose) | |
4458 | fprintf(stderr, | |
4459 | Name ": Cannot create this array on device %s\n", | |
4460 | dev); | |
4461 | close(fd); | |
4462 | return 0; | |
4463 | } | |
4464 | if (errno != EBUSY || (fd = open(dev, O_RDONLY, 0)) < 0) { | |
4465 | if (verbose) | |
4466 | fprintf(stderr, Name ": Cannot open %s: %s\n", | |
4467 | dev, strerror(errno)); | |
4468 | return 0; | |
4469 | } | |
4470 | /* Well, it is in use by someone, maybe an 'imsm' container. */ | |
4471 | cfd = open_container(fd); | |
20cbe8d2 | 4472 | close(fd); |
bf5a934a | 4473 | if (cfd < 0) { |
bf5a934a DW |
4474 | if (verbose) |
4475 | fprintf(stderr, Name ": Cannot use %s: It is busy\n", | |
4476 | dev); | |
4477 | return 0; | |
4478 | } | |
4479 | sra = sysfs_read(cfd, 0, GET_VERSION); | |
bf5a934a | 4480 | if (sra && sra->array.major_version == -1 && |
20cbe8d2 AW |
4481 | strcmp(sra->text_version, "imsm") == 0) |
4482 | is_member = 1; | |
4483 | sysfs_free(sra); | |
4484 | if (is_member) { | |
bf5a934a DW |
4485 | /* This is a member of a imsm container. Load the container |
4486 | * and try to create a volume | |
4487 | */ | |
4488 | struct intel_super *super; | |
4489 | ||
e1902a7b | 4490 | if (load_super_imsm_all(st, cfd, (void **) &super, NULL) == 0) { |
bf5a934a DW |
4491 | st->sb = super; |
4492 | st->container_dev = fd2devnum(cfd); | |
4493 | close(cfd); | |
4494 | return validate_geometry_imsm_volume(st, level, layout, | |
4495 | raiddisks, chunk, | |
4496 | size, dev, | |
4497 | freesize, verbose); | |
4498 | } | |
20cbe8d2 | 4499 | } |
bf5a934a | 4500 | |
20cbe8d2 AW |
4501 | if (verbose) |
4502 | fprintf(stderr, Name ": failed container membership check\n"); | |
4503 | ||
4504 | close(cfd); | |
4505 | return 0; | |
bf5a934a | 4506 | } |
0bd16cf2 | 4507 | |
30f58b22 | 4508 | static void default_geometry_imsm(struct supertype *st, int *level, int *layout, int *chunk) |
0bd16cf2 DJ |
4509 | { |
4510 | struct intel_super *super = st->sb; | |
4511 | ||
30f58b22 DW |
4512 | if (level && *level == UnSet) |
4513 | *level = LEVEL_CONTAINER; | |
4514 | ||
4515 | if (level && layout && *layout == UnSet) | |
4516 | *layout = imsm_level_to_layout(*level); | |
0bd16cf2 | 4517 | |
1d54f286 N |
4518 | if (chunk && (*chunk == UnSet || *chunk == 0) && |
4519 | super && super->orom) | |
30f58b22 | 4520 | *chunk = imsm_orom_default_chunk(super->orom); |
0bd16cf2 DJ |
4521 | } |
4522 | ||
33414a01 DW |
4523 | static void handle_missing(struct intel_super *super, struct imsm_dev *dev); |
4524 | ||
4525 | static int kill_subarray_imsm(struct supertype *st) | |
4526 | { | |
4527 | /* remove the subarray currently referenced by ->current_vol */ | |
4528 | __u8 i; | |
4529 | struct intel_dev **dp; | |
4530 | struct intel_super *super = st->sb; | |
4531 | __u8 current_vol = super->current_vol; | |
4532 | struct imsm_super *mpb = super->anchor; | |
4533 | ||
4534 | if (super->current_vol < 0) | |
4535 | return 2; | |
4536 | super->current_vol = -1; /* invalidate subarray cursor */ | |
4537 | ||
4538 | /* block deletions that would change the uuid of active subarrays | |
4539 | * | |
4540 | * FIXME when immutable ids are available, but note that we'll | |
4541 | * also need to fixup the invalidated/active subarray indexes in | |
4542 | * mdstat | |
4543 | */ | |
4544 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
4545 | char subarray[4]; | |
4546 | ||
4547 | if (i < current_vol) | |
4548 | continue; | |
4549 | sprintf(subarray, "%u", i); | |
4550 | if (is_subarray_active(subarray, st->devname)) { | |
4551 | fprintf(stderr, | |
4552 | Name ": deleting subarray-%d would change the UUID of active subarray-%d, aborting\n", | |
4553 | current_vol, i); | |
4554 | ||
4555 | return 2; | |
4556 | } | |
4557 | } | |
4558 | ||
4559 | if (st->update_tail) { | |
4560 | struct imsm_update_kill_array *u = malloc(sizeof(*u)); | |
4561 | ||
4562 | if (!u) | |
4563 | return 2; | |
4564 | u->type = update_kill_array; | |
4565 | u->dev_idx = current_vol; | |
4566 | append_metadata_update(st, u, sizeof(*u)); | |
4567 | ||
4568 | return 0; | |
4569 | } | |
4570 | ||
4571 | for (dp = &super->devlist; *dp;) | |
4572 | if ((*dp)->index == current_vol) { | |
4573 | *dp = (*dp)->next; | |
4574 | } else { | |
4575 | handle_missing(super, (*dp)->dev); | |
4576 | if ((*dp)->index > current_vol) | |
4577 | (*dp)->index--; | |
4578 | dp = &(*dp)->next; | |
4579 | } | |
4580 | ||
4581 | /* no more raid devices, all active components are now spares, | |
4582 | * but of course failed are still failed | |
4583 | */ | |
4584 | if (--mpb->num_raid_devs == 0) { | |
4585 | struct dl *d; | |
4586 | ||
4587 | for (d = super->disks; d; d = d->next) | |
4588 | if (d->index > -2) { | |
4589 | d->index = -1; | |
4590 | d->disk.status = SPARE_DISK; | |
4591 | } | |
4592 | } | |
4593 | ||
4594 | super->updates_pending++; | |
4595 | ||
4596 | return 0; | |
4597 | } | |
aa534678 | 4598 | |
a951a4f7 | 4599 | static int update_subarray_imsm(struct supertype *st, char *subarray, |
fa56eddb | 4600 | char *update, struct mddev_ident *ident) |
aa534678 DW |
4601 | { |
4602 | /* update the subarray currently referenced by ->current_vol */ | |
4603 | struct intel_super *super = st->sb; | |
4604 | struct imsm_super *mpb = super->anchor; | |
4605 | ||
aa534678 DW |
4606 | if (strcmp(update, "name") == 0) { |
4607 | char *name = ident->name; | |
a951a4f7 N |
4608 | char *ep; |
4609 | int vol; | |
aa534678 | 4610 | |
a951a4f7 | 4611 | if (is_subarray_active(subarray, st->devname)) { |
aa534678 DW |
4612 | fprintf(stderr, |
4613 | Name ": Unable to update name of active subarray\n"); | |
4614 | return 2; | |
4615 | } | |
4616 | ||
4617 | if (!check_name(super, name, 0)) | |
4618 | return 2; | |
4619 | ||
a951a4f7 N |
4620 | vol = strtoul(subarray, &ep, 10); |
4621 | if (*ep != '\0' || vol >= super->anchor->num_raid_devs) | |
4622 | return 2; | |
4623 | ||
aa534678 DW |
4624 | if (st->update_tail) { |
4625 | struct imsm_update_rename_array *u = malloc(sizeof(*u)); | |
4626 | ||
4627 | if (!u) | |
4628 | return 2; | |
4629 | u->type = update_rename_array; | |
a951a4f7 | 4630 | u->dev_idx = vol; |
aa534678 DW |
4631 | snprintf((char *) u->name, MAX_RAID_SERIAL_LEN, "%s", name); |
4632 | append_metadata_update(st, u, sizeof(*u)); | |
4633 | } else { | |
4634 | struct imsm_dev *dev; | |
4635 | int i; | |
4636 | ||
a951a4f7 | 4637 | dev = get_imsm_dev(super, vol); |
aa534678 DW |
4638 | snprintf((char *) dev->volume, MAX_RAID_SERIAL_LEN, "%s", name); |
4639 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
4640 | dev = get_imsm_dev(super, i); | |
4641 | handle_missing(super, dev); | |
4642 | } | |
4643 | super->updates_pending++; | |
4644 | } | |
4645 | } else | |
4646 | return 2; | |
4647 | ||
4648 | return 0; | |
4649 | } | |
bf5a934a | 4650 | |
28bce06f AK |
4651 | static int is_gen_migration(struct imsm_dev *dev) |
4652 | { | |
4653 | if (!dev->vol.migr_state) | |
4654 | return 0; | |
4655 | ||
4656 | if (migr_type(dev) == MIGR_GEN_MIGR) | |
4657 | return 1; | |
4658 | ||
4659 | return 0; | |
4660 | } | |
71204a50 | 4661 | #endif /* MDASSEMBLE */ |
28bce06f | 4662 | |
1e5c6983 DW |
4663 | static int is_rebuilding(struct imsm_dev *dev) |
4664 | { | |
4665 | struct imsm_map *migr_map; | |
4666 | ||
4667 | if (!dev->vol.migr_state) | |
4668 | return 0; | |
4669 | ||
4670 | if (migr_type(dev) != MIGR_REBUILD) | |
4671 | return 0; | |
4672 | ||
4673 | migr_map = get_imsm_map(dev, 1); | |
4674 | ||
4675 | if (migr_map->map_state == IMSM_T_STATE_DEGRADED) | |
4676 | return 1; | |
4677 | else | |
4678 | return 0; | |
4679 | } | |
4680 | ||
4681 | static void update_recovery_start(struct imsm_dev *dev, struct mdinfo *array) | |
4682 | { | |
4683 | struct mdinfo *rebuild = NULL; | |
4684 | struct mdinfo *d; | |
4685 | __u32 units; | |
4686 | ||
4687 | if (!is_rebuilding(dev)) | |
4688 | return; | |
4689 | ||
4690 | /* Find the rebuild target, but punt on the dual rebuild case */ | |
4691 | for (d = array->devs; d; d = d->next) | |
4692 | if (d->recovery_start == 0) { | |
4693 | if (rebuild) | |
4694 | return; | |
4695 | rebuild = d; | |
4696 | } | |
4697 | ||
4363fd80 DW |
4698 | if (!rebuild) { |
4699 | /* (?) none of the disks are marked with | |
4700 | * IMSM_ORD_REBUILD, so assume they are missing and the | |
4701 | * disk_ord_tbl was not correctly updated | |
4702 | */ | |
4703 | dprintf("%s: failed to locate out-of-sync disk\n", __func__); | |
4704 | return; | |
4705 | } | |
4706 | ||
1e5c6983 DW |
4707 | units = __le32_to_cpu(dev->vol.curr_migr_unit); |
4708 | rebuild->recovery_start = units * blocks_per_migr_unit(dev); | |
4709 | } | |
4710 | ||
4711 | ||
00bbdbda | 4712 | static struct mdinfo *container_content_imsm(struct supertype *st, char *subarray) |
cdddbdbc | 4713 | { |
4f5bc454 DW |
4714 | /* Given a container loaded by load_super_imsm_all, |
4715 | * extract information about all the arrays into | |
4716 | * an mdinfo tree. | |
00bbdbda | 4717 | * If 'subarray' is given, just extract info about that array. |
4f5bc454 DW |
4718 | * |
4719 | * For each imsm_dev create an mdinfo, fill it in, | |
4720 | * then look for matching devices in super->disks | |
4721 | * and create appropriate device mdinfo. | |
4722 | */ | |
4723 | struct intel_super *super = st->sb; | |
949c47a0 | 4724 | struct imsm_super *mpb = super->anchor; |
4f5bc454 | 4725 | struct mdinfo *rest = NULL; |
00bbdbda | 4726 | unsigned int i; |
a06d022d | 4727 | int bbm_errors = 0; |
cdddbdbc | 4728 | |
a06d022d KW |
4729 | /* check for bad blocks */ |
4730 | if (imsm_bbm_log_size(super->anchor)) | |
4731 | bbm_errors = 1; | |
604b746f | 4732 | |
4f5bc454 | 4733 | for (i = 0; i < mpb->num_raid_devs; i++) { |
00bbdbda N |
4734 | struct imsm_dev *dev; |
4735 | struct imsm_map *map; | |
86e3692b | 4736 | struct imsm_map *map2; |
4f5bc454 | 4737 | struct mdinfo *this; |
4f5bc454 | 4738 | int slot; |
00bbdbda N |
4739 | char *ep; |
4740 | ||
4741 | if (subarray && | |
4742 | (i != strtoul(subarray, &ep, 10) || *ep != '\0')) | |
4743 | continue; | |
4744 | ||
4745 | dev = get_imsm_dev(super, i); | |
4746 | map = get_imsm_map(dev, 0); | |
86e3692b | 4747 | map2 = get_imsm_map(dev, 1); |
4f5bc454 | 4748 | |
1ce0101c DW |
4749 | /* do not publish arrays that are in the middle of an |
4750 | * unsupported migration | |
4751 | */ | |
4752 | if (dev->vol.migr_state && | |
28bce06f | 4753 | (migr_type(dev) == MIGR_STATE_CHANGE)) { |
1ce0101c DW |
4754 | fprintf(stderr, Name ": cannot assemble volume '%.16s':" |
4755 | " unsupported migration in progress\n", | |
4756 | dev->volume); | |
4757 | continue; | |
4758 | } | |
4759 | ||
4f5bc454 | 4760 | this = malloc(sizeof(*this)); |
0fbd635c | 4761 | if (!this) { |
cf1be220 | 4762 | fprintf(stderr, Name ": failed to allocate %zu bytes\n", |
0fbd635c AW |
4763 | sizeof(*this)); |
4764 | break; | |
4765 | } | |
4f5bc454 DW |
4766 | memset(this, 0, sizeof(*this)); |
4767 | this->next = rest; | |
4f5bc454 | 4768 | |
301406c9 | 4769 | super->current_vol = i; |
a5d85af7 | 4770 | getinfo_super_imsm_volume(st, this, NULL); |
4f5bc454 | 4771 | for (slot = 0 ; slot < map->num_members; slot++) { |
1e5c6983 | 4772 | unsigned long long recovery_start; |
4f5bc454 DW |
4773 | struct mdinfo *info_d; |
4774 | struct dl *d; | |
4775 | int idx; | |
9a1608e5 | 4776 | int skip; |
7eef0453 | 4777 | __u32 ord; |
4f5bc454 | 4778 | |
9a1608e5 | 4779 | skip = 0; |
98130f40 AK |
4780 | idx = get_imsm_disk_idx(dev, slot, 0); |
4781 | ord = get_imsm_ord_tbl_ent(dev, slot, 0); | |
4f5bc454 DW |
4782 | for (d = super->disks; d ; d = d->next) |
4783 | if (d->index == idx) | |
0fbd635c | 4784 | break; |
4f5bc454 | 4785 | |
1e5c6983 | 4786 | recovery_start = MaxSector; |
4f5bc454 | 4787 | if (d == NULL) |
9a1608e5 | 4788 | skip = 1; |
25ed7e59 | 4789 | if (d && is_failed(&d->disk)) |
9a1608e5 | 4790 | skip = 1; |
7eef0453 | 4791 | if (ord & IMSM_ORD_REBUILD) |
1e5c6983 | 4792 | recovery_start = 0; |
9a1608e5 DW |
4793 | |
4794 | /* | |
4795 | * if we skip some disks the array will be assmebled degraded; | |
1e5c6983 DW |
4796 | * reset resync start to avoid a dirty-degraded |
4797 | * situation when performing the intial sync | |
9a1608e5 DW |
4798 | * |
4799 | * FIXME handle dirty degraded | |
4800 | */ | |
1e5c6983 | 4801 | if ((skip || recovery_start == 0) && !dev->vol.dirty) |
b7528a20 | 4802 | this->resync_start = MaxSector; |
9a1608e5 DW |
4803 | if (skip) |
4804 | continue; | |
4f5bc454 | 4805 | |
1e5c6983 | 4806 | info_d = calloc(1, sizeof(*info_d)); |
9a1608e5 DW |
4807 | if (!info_d) { |
4808 | fprintf(stderr, Name ": failed to allocate disk" | |
1ce0101c | 4809 | " for volume %.16s\n", dev->volume); |
1e5c6983 DW |
4810 | info_d = this->devs; |
4811 | while (info_d) { | |
4812 | struct mdinfo *d = info_d->next; | |
4813 | ||
4814 | free(info_d); | |
4815 | info_d = d; | |
4816 | } | |
9a1608e5 DW |
4817 | free(this); |
4818 | this = rest; | |
4819 | break; | |
4820 | } | |
4f5bc454 DW |
4821 | info_d->next = this->devs; |
4822 | this->devs = info_d; | |
4823 | ||
4f5bc454 DW |
4824 | info_d->disk.number = d->index; |
4825 | info_d->disk.major = d->major; | |
4826 | info_d->disk.minor = d->minor; | |
4827 | info_d->disk.raid_disk = slot; | |
1e5c6983 | 4828 | info_d->recovery_start = recovery_start; |
86e3692b AK |
4829 | if (map2) { |
4830 | if (slot < map2->num_members) | |
4831 | info_d->disk.state = (1 << MD_DISK_ACTIVE); | |
04c3c514 AK |
4832 | else |
4833 | this->array.spare_disks++; | |
86e3692b AK |
4834 | } else { |
4835 | if (slot < map->num_members) | |
4836 | info_d->disk.state = (1 << MD_DISK_ACTIVE); | |
04c3c514 AK |
4837 | else |
4838 | this->array.spare_disks++; | |
86e3692b | 4839 | } |
1e5c6983 DW |
4840 | if (info_d->recovery_start == MaxSector) |
4841 | this->array.working_disks++; | |
4f5bc454 DW |
4842 | |
4843 | info_d->events = __le32_to_cpu(mpb->generation_num); | |
4844 | info_d->data_offset = __le32_to_cpu(map->pba_of_lba0); | |
4845 | info_d->component_size = __le32_to_cpu(map->blocks_per_member); | |
4f5bc454 | 4846 | } |
1e5c6983 DW |
4847 | /* now that the disk list is up-to-date fixup recovery_start */ |
4848 | update_recovery_start(dev, this); | |
9a1608e5 | 4849 | rest = this; |
4f5bc454 DW |
4850 | } |
4851 | ||
a06d022d KW |
4852 | /* if array has bad blocks, set suitable bit in array status */ |
4853 | if (bbm_errors) | |
4854 | rest->array.state |= (1<<MD_SB_BBM_ERRORS); | |
4855 | ||
4f5bc454 | 4856 | return rest; |
cdddbdbc DW |
4857 | } |
4858 | ||
845dea95 | 4859 | |
fb49eef2 | 4860 | static __u8 imsm_check_degraded(struct intel_super *super, struct imsm_dev *dev, int failed) |
c2a1e7da | 4861 | { |
a965f303 | 4862 | struct imsm_map *map = get_imsm_map(dev, 0); |
c2a1e7da DW |
4863 | |
4864 | if (!failed) | |
3393c6af DW |
4865 | return map->map_state == IMSM_T_STATE_UNINITIALIZED ? |
4866 | IMSM_T_STATE_UNINITIALIZED : IMSM_T_STATE_NORMAL; | |
c2a1e7da DW |
4867 | |
4868 | switch (get_imsm_raid_level(map)) { | |
4869 | case 0: | |
4870 | return IMSM_T_STATE_FAILED; | |
4871 | break; | |
4872 | case 1: | |
4873 | if (failed < map->num_members) | |
4874 | return IMSM_T_STATE_DEGRADED; | |
4875 | else | |
4876 | return IMSM_T_STATE_FAILED; | |
4877 | break; | |
4878 | case 10: | |
4879 | { | |
4880 | /** | |
c92a2527 DW |
4881 | * check to see if any mirrors have failed, otherwise we |
4882 | * are degraded. Even numbered slots are mirrored on | |
4883 | * slot+1 | |
c2a1e7da | 4884 | */ |
c2a1e7da | 4885 | int i; |
d9b420a5 N |
4886 | /* gcc -Os complains that this is unused */ |
4887 | int insync = insync; | |
c2a1e7da DW |
4888 | |
4889 | for (i = 0; i < map->num_members; i++) { | |
98130f40 | 4890 | __u32 ord = get_imsm_ord_tbl_ent(dev, i, -1); |
c92a2527 DW |
4891 | int idx = ord_to_idx(ord); |
4892 | struct imsm_disk *disk; | |
c2a1e7da | 4893 | |
c92a2527 DW |
4894 | /* reset the potential in-sync count on even-numbered |
4895 | * slots. num_copies is always 2 for imsm raid10 | |
4896 | */ | |
4897 | if ((i & 1) == 0) | |
4898 | insync = 2; | |
c2a1e7da | 4899 | |
c92a2527 | 4900 | disk = get_imsm_disk(super, idx); |
25ed7e59 | 4901 | if (!disk || is_failed(disk) || ord & IMSM_ORD_REBUILD) |
c92a2527 | 4902 | insync--; |
c2a1e7da | 4903 | |
c92a2527 DW |
4904 | /* no in-sync disks left in this mirror the |
4905 | * array has failed | |
4906 | */ | |
4907 | if (insync == 0) | |
4908 | return IMSM_T_STATE_FAILED; | |
c2a1e7da DW |
4909 | } |
4910 | ||
4911 | return IMSM_T_STATE_DEGRADED; | |
4912 | } | |
4913 | case 5: | |
4914 | if (failed < 2) | |
4915 | return IMSM_T_STATE_DEGRADED; | |
4916 | else | |
4917 | return IMSM_T_STATE_FAILED; | |
4918 | break; | |
4919 | default: | |
4920 | break; | |
4921 | } | |
4922 | ||
4923 | return map->map_state; | |
4924 | } | |
4925 | ||
ff077194 | 4926 | static int imsm_count_failed(struct intel_super *super, struct imsm_dev *dev) |
c2a1e7da DW |
4927 | { |
4928 | int i; | |
4929 | int failed = 0; | |
4930 | struct imsm_disk *disk; | |
ff077194 | 4931 | struct imsm_map *map = get_imsm_map(dev, 0); |
0556e1a2 DW |
4932 | struct imsm_map *prev = get_imsm_map(dev, dev->vol.migr_state); |
4933 | __u32 ord; | |
4934 | int idx; | |
c2a1e7da | 4935 | |
0556e1a2 DW |
4936 | /* at the beginning of migration we set IMSM_ORD_REBUILD on |
4937 | * disks that are being rebuilt. New failures are recorded to | |
4938 | * map[0]. So we look through all the disks we started with and | |
4939 | * see if any failures are still present, or if any new ones | |
4940 | * have arrived | |
4941 | * | |
4942 | * FIXME add support for online capacity expansion and | |
4943 | * raid-level-migration | |
4944 | */ | |
4945 | for (i = 0; i < prev->num_members; i++) { | |
4946 | ord = __le32_to_cpu(prev->disk_ord_tbl[i]); | |
4947 | ord |= __le32_to_cpu(map->disk_ord_tbl[i]); | |
4948 | idx = ord_to_idx(ord); | |
c2a1e7da | 4949 | |
949c47a0 | 4950 | disk = get_imsm_disk(super, idx); |
25ed7e59 | 4951 | if (!disk || is_failed(disk) || ord & IMSM_ORD_REBUILD) |
fcb84475 | 4952 | failed++; |
c2a1e7da DW |
4953 | } |
4954 | ||
4955 | return failed; | |
845dea95 NB |
4956 | } |
4957 | ||
97b4d0e9 DW |
4958 | #ifndef MDASSEMBLE |
4959 | static int imsm_open_new(struct supertype *c, struct active_array *a, | |
4960 | char *inst) | |
4961 | { | |
4962 | struct intel_super *super = c->sb; | |
4963 | struct imsm_super *mpb = super->anchor; | |
4964 | ||
4965 | if (atoi(inst) >= mpb->num_raid_devs) { | |
4966 | fprintf(stderr, "%s: subarry index %d, out of range\n", | |
4967 | __func__, atoi(inst)); | |
4968 | return -ENODEV; | |
4969 | } | |
4970 | ||
4971 | dprintf("imsm: open_new %s\n", inst); | |
4972 | a->info.container_member = atoi(inst); | |
4973 | return 0; | |
4974 | } | |
4975 | ||
0c046afd DW |
4976 | static int is_resyncing(struct imsm_dev *dev) |
4977 | { | |
4978 | struct imsm_map *migr_map; | |
4979 | ||
4980 | if (!dev->vol.migr_state) | |
4981 | return 0; | |
4982 | ||
1484e727 DW |
4983 | if (migr_type(dev) == MIGR_INIT || |
4984 | migr_type(dev) == MIGR_REPAIR) | |
0c046afd DW |
4985 | return 1; |
4986 | ||
4c9bc37b AK |
4987 | if (migr_type(dev) == MIGR_GEN_MIGR) |
4988 | return 0; | |
4989 | ||
0c046afd DW |
4990 | migr_map = get_imsm_map(dev, 1); |
4991 | ||
4c9bc37b AK |
4992 | if ((migr_map->map_state == IMSM_T_STATE_NORMAL) && |
4993 | (dev->vol.migr_type != MIGR_GEN_MIGR)) | |
0c046afd DW |
4994 | return 1; |
4995 | else | |
4996 | return 0; | |
4997 | } | |
4998 | ||
0556e1a2 DW |
4999 | /* return true if we recorded new information */ |
5000 | static int mark_failure(struct imsm_dev *dev, struct imsm_disk *disk, int idx) | |
47ee5a45 | 5001 | { |
0556e1a2 DW |
5002 | __u32 ord; |
5003 | int slot; | |
5004 | struct imsm_map *map; | |
5005 | ||
5006 | /* new failures are always set in map[0] */ | |
5007 | map = get_imsm_map(dev, 0); | |
5008 | ||
5009 | slot = get_imsm_disk_slot(map, idx); | |
5010 | if (slot < 0) | |
5011 | return 0; | |
5012 | ||
5013 | ord = __le32_to_cpu(map->disk_ord_tbl[slot]); | |
25ed7e59 | 5014 | if (is_failed(disk) && (ord & IMSM_ORD_REBUILD)) |
0556e1a2 DW |
5015 | return 0; |
5016 | ||
f2f27e63 | 5017 | disk->status |= FAILED_DISK; |
cf53434e | 5018 | disk->status &= ~CONFIGURED_DISK; |
0556e1a2 | 5019 | set_imsm_ord_tbl_ent(map, slot, idx | IMSM_ORD_REBUILD); |
f21e18ca | 5020 | if (map->failed_disk_num == 0xff) |
0556e1a2 DW |
5021 | map->failed_disk_num = slot; |
5022 | return 1; | |
5023 | } | |
5024 | ||
5025 | static void mark_missing(struct imsm_dev *dev, struct imsm_disk *disk, int idx) | |
5026 | { | |
5027 | mark_failure(dev, disk, idx); | |
5028 | ||
5029 | if (disk->scsi_id == __cpu_to_le32(~(__u32)0)) | |
5030 | return; | |
5031 | ||
47ee5a45 DW |
5032 | disk->scsi_id = __cpu_to_le32(~(__u32)0); |
5033 | memmove(&disk->serial[0], &disk->serial[1], MAX_RAID_SERIAL_LEN - 1); | |
5034 | } | |
5035 | ||
33414a01 DW |
5036 | static void handle_missing(struct intel_super *super, struct imsm_dev *dev) |
5037 | { | |
5038 | __u8 map_state; | |
5039 | struct dl *dl; | |
5040 | int failed; | |
5041 | ||
5042 | if (!super->missing) | |
5043 | return; | |
5044 | failed = imsm_count_failed(super, dev); | |
5045 | map_state = imsm_check_degraded(super, dev, failed); | |
5046 | ||
5047 | dprintf("imsm: mark missing\n"); | |
5048 | end_migration(dev, map_state); | |
5049 | for (dl = super->missing; dl; dl = dl->next) | |
5050 | mark_missing(dev, &dl->disk, dl->index); | |
5051 | super->updates_pending++; | |
5052 | } | |
5053 | ||
70bdf0dc AK |
5054 | static unsigned long long imsm_set_array_size(struct imsm_dev *dev) |
5055 | { | |
5056 | int used_disks = imsm_num_data_members(dev, 0); | |
5057 | unsigned long long array_blocks; | |
5058 | struct imsm_map *map; | |
5059 | ||
5060 | if (used_disks == 0) { | |
5061 | /* when problems occures | |
5062 | * return current array_blocks value | |
5063 | */ | |
5064 | array_blocks = __le32_to_cpu(dev->size_high); | |
5065 | array_blocks = array_blocks << 32; | |
5066 | array_blocks += __le32_to_cpu(dev->size_low); | |
5067 | ||
5068 | return array_blocks; | |
5069 | } | |
5070 | ||
5071 | /* set array size in metadata | |
5072 | */ | |
5073 | map = get_imsm_map(dev, 0); | |
5074 | array_blocks = map->blocks_per_member * used_disks; | |
5075 | ||
5076 | /* round array size down to closest MB | |
5077 | */ | |
5078 | array_blocks = (array_blocks >> SECT_PER_MB_SHIFT) << SECT_PER_MB_SHIFT; | |
5079 | dev->size_low = __cpu_to_le32((__u32)array_blocks); | |
5080 | dev->size_high = __cpu_to_le32((__u32)(array_blocks >> 32)); | |
5081 | ||
5082 | return array_blocks; | |
5083 | } | |
5084 | ||
28bce06f AK |
5085 | static void imsm_set_disk(struct active_array *a, int n, int state); |
5086 | ||
0e2d1a4e AK |
5087 | static void imsm_progress_container_reshape(struct intel_super *super) |
5088 | { | |
5089 | /* if no device has a migr_state, but some device has a | |
5090 | * different number of members than the previous device, start | |
5091 | * changing the number of devices in this device to match | |
5092 | * previous. | |
5093 | */ | |
5094 | struct imsm_super *mpb = super->anchor; | |
5095 | int prev_disks = -1; | |
5096 | int i; | |
1dfaa380 | 5097 | int copy_map_size; |
0e2d1a4e AK |
5098 | |
5099 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
5100 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
5101 | struct imsm_map *map = get_imsm_map(dev, 0); | |
5102 | struct imsm_map *map2; | |
5103 | int prev_num_members; | |
0e2d1a4e AK |
5104 | |
5105 | if (dev->vol.migr_state) | |
5106 | return; | |
5107 | ||
5108 | if (prev_disks == -1) | |
5109 | prev_disks = map->num_members; | |
5110 | if (prev_disks == map->num_members) | |
5111 | continue; | |
5112 | ||
5113 | /* OK, this array needs to enter reshape mode. | |
5114 | * i.e it needs a migr_state | |
5115 | */ | |
5116 | ||
1dfaa380 | 5117 | copy_map_size = sizeof_imsm_map(map); |
0e2d1a4e AK |
5118 | prev_num_members = map->num_members; |
5119 | map->num_members = prev_disks; | |
5120 | dev->vol.migr_state = 1; | |
5121 | dev->vol.curr_migr_unit = 0; | |
5122 | dev->vol.migr_type = MIGR_GEN_MIGR; | |
5123 | for (i = prev_num_members; | |
5124 | i < map->num_members; i++) | |
5125 | set_imsm_ord_tbl_ent(map, i, i); | |
5126 | map2 = get_imsm_map(dev, 1); | |
5127 | /* Copy the current map */ | |
1dfaa380 | 5128 | memcpy(map2, map, copy_map_size); |
0e2d1a4e AK |
5129 | map2->num_members = prev_num_members; |
5130 | ||
70bdf0dc | 5131 | imsm_set_array_size(dev); |
0e2d1a4e AK |
5132 | super->updates_pending++; |
5133 | } | |
5134 | } | |
5135 | ||
aad6f216 | 5136 | /* Handle dirty -> clean transititions, resync and reshape. Degraded and rebuild |
0c046afd DW |
5137 | * states are handled in imsm_set_disk() with one exception, when a |
5138 | * resync is stopped due to a new failure this routine will set the | |
5139 | * 'degraded' state for the array. | |
5140 | */ | |
01f157d7 | 5141 | static int imsm_set_array_state(struct active_array *a, int consistent) |
a862209d DW |
5142 | { |
5143 | int inst = a->info.container_member; | |
5144 | struct intel_super *super = a->container->sb; | |
949c47a0 | 5145 | struct imsm_dev *dev = get_imsm_dev(super, inst); |
a965f303 | 5146 | struct imsm_map *map = get_imsm_map(dev, 0); |
0c046afd DW |
5147 | int failed = imsm_count_failed(super, dev); |
5148 | __u8 map_state = imsm_check_degraded(super, dev, failed); | |
1e5c6983 | 5149 | __u32 blocks_per_unit; |
a862209d | 5150 | |
1af97990 AK |
5151 | if (dev->vol.migr_state && |
5152 | dev->vol.migr_type == MIGR_GEN_MIGR) { | |
5153 | /* array state change is blocked due to reshape action | |
aad6f216 N |
5154 | * We might need to |
5155 | * - abort the reshape (if last_checkpoint is 0 and action!= reshape) | |
5156 | * - finish the reshape (if last_checkpoint is big and action != reshape) | |
5157 | * - update curr_migr_unit | |
1af97990 | 5158 | */ |
aad6f216 N |
5159 | if (a->curr_action == reshape) { |
5160 | /* still reshaping, maybe update curr_migr_unit */ | |
5161 | long long blocks_per_unit = blocks_per_migr_unit(dev); | |
5162 | long long unit = a->last_checkpoint; | |
6345120e AK |
5163 | if (blocks_per_unit) { |
5164 | unit /= blocks_per_unit; | |
5165 | if (unit > | |
5166 | __le32_to_cpu(dev->vol.curr_migr_unit)) { | |
5167 | dev->vol.curr_migr_unit = | |
5168 | __cpu_to_le32(unit); | |
5169 | super->updates_pending++; | |
5170 | } | |
aad6f216 | 5171 | } |
a4546b61 | 5172 | return 0; |
aad6f216 N |
5173 | } else { |
5174 | if (a->last_checkpoint == 0 && a->prev_action == reshape) { | |
5175 | /* for some reason we aborted the reshape. | |
5176 | * Better clean up | |
5177 | */ | |
5178 | struct imsm_map *map2 = get_imsm_map(dev, 1); | |
5179 | dev->vol.migr_state = 0; | |
5180 | dev->vol.migr_type = 0; | |
5181 | dev->vol.curr_migr_unit = 0; | |
5182 | memcpy(map, map2, sizeof_imsm_map(map2)); | |
5183 | super->updates_pending++; | |
5184 | } | |
5185 | if (a->last_checkpoint >= a->info.component_size) { | |
5186 | unsigned long long array_blocks; | |
5187 | int used_disks; | |
e154ced3 | 5188 | struct mdinfo *mdi; |
aad6f216 | 5189 | |
98130f40 | 5190 | used_disks = imsm_num_data_members(dev, -1); |
d55adef9 AK |
5191 | if (used_disks > 0) { |
5192 | array_blocks = | |
5193 | map->blocks_per_member * | |
5194 | used_disks; | |
5195 | /* round array size down to closest MB | |
5196 | */ | |
5197 | array_blocks = (array_blocks | |
5198 | >> SECT_PER_MB_SHIFT) | |
5199 | << SECT_PER_MB_SHIFT; | |
5200 | dev->size_low = __cpu_to_le32( | |
5201 | (__u32) array_blocks); | |
5202 | dev->size_high = __cpu_to_le32( | |
5203 | (__u32) (array_blocks >> 32)); | |
5204 | a->info.custom_array_size = array_blocks; | |
5205 | /* encourage manager to update array | |
5206 | * size | |
5207 | */ | |
5208 | super->updates_pending++; | |
e154ced3 | 5209 | |
d55adef9 AK |
5210 | a->check_reshape = 1; |
5211 | } | |
e154ced3 AK |
5212 | /* finalize online capacity expansion/reshape */ |
5213 | for (mdi = a->info.devs; mdi; mdi = mdi->next) | |
5214 | imsm_set_disk(a, | |
5215 | mdi->disk.raid_disk, | |
5216 | mdi->curr_state); | |
5217 | ||
0e2d1a4e | 5218 | imsm_progress_container_reshape(super); |
e154ced3 | 5219 | } |
aad6f216 | 5220 | } |
1af97990 AK |
5221 | } |
5222 | ||
47ee5a45 | 5223 | /* before we activate this array handle any missing disks */ |
33414a01 DW |
5224 | if (consistent == 2) |
5225 | handle_missing(super, dev); | |
1e5c6983 | 5226 | |
0c046afd | 5227 | if (consistent == 2 && |
b7941fd6 | 5228 | (!is_resync_complete(&a->info) || |
0c046afd DW |
5229 | map_state != IMSM_T_STATE_NORMAL || |
5230 | dev->vol.migr_state)) | |
01f157d7 | 5231 | consistent = 0; |
272906ef | 5232 | |
b7941fd6 | 5233 | if (is_resync_complete(&a->info)) { |
0c046afd | 5234 | /* complete intialization / resync, |
0556e1a2 DW |
5235 | * recovery and interrupted recovery is completed in |
5236 | * ->set_disk | |
0c046afd DW |
5237 | */ |
5238 | if (is_resyncing(dev)) { | |
5239 | dprintf("imsm: mark resync done\n"); | |
f8f603f1 | 5240 | end_migration(dev, map_state); |
115c3803 | 5241 | super->updates_pending++; |
484240d8 | 5242 | a->last_checkpoint = 0; |
115c3803 | 5243 | } |
0c046afd DW |
5244 | } else if (!is_resyncing(dev) && !failed) { |
5245 | /* mark the start of the init process if nothing is failed */ | |
b7941fd6 | 5246 | dprintf("imsm: mark resync start\n"); |
1484e727 | 5247 | if (map->map_state == IMSM_T_STATE_UNINITIALIZED) |
e3bba0e0 | 5248 | migrate(dev, IMSM_T_STATE_NORMAL, MIGR_INIT); |
1484e727 DW |
5249 | else |
5250 | migrate(dev, IMSM_T_STATE_NORMAL, MIGR_REPAIR); | |
3393c6af | 5251 | super->updates_pending++; |
115c3803 | 5252 | } |
a862209d | 5253 | |
1e5c6983 DW |
5254 | /* check if we can update curr_migr_unit from resync_start, recovery_start */ |
5255 | blocks_per_unit = blocks_per_migr_unit(dev); | |
4f0a7acc | 5256 | if (blocks_per_unit) { |
1e5c6983 DW |
5257 | __u32 units32; |
5258 | __u64 units; | |
5259 | ||
4f0a7acc | 5260 | units = a->last_checkpoint / blocks_per_unit; |
1e5c6983 DW |
5261 | units32 = units; |
5262 | ||
5263 | /* check that we did not overflow 32-bits, and that | |
5264 | * curr_migr_unit needs updating | |
5265 | */ | |
5266 | if (units32 == units && | |
5267 | __le32_to_cpu(dev->vol.curr_migr_unit) != units32) { | |
5268 | dprintf("imsm: mark checkpoint (%u)\n", units32); | |
5269 | dev->vol.curr_migr_unit = __cpu_to_le32(units32); | |
5270 | super->updates_pending++; | |
5271 | } | |
5272 | } | |
f8f603f1 | 5273 | |
3393c6af | 5274 | /* mark dirty / clean */ |
0c046afd | 5275 | if (dev->vol.dirty != !consistent) { |
b7941fd6 | 5276 | dprintf("imsm: mark '%s'\n", consistent ? "clean" : "dirty"); |
0c046afd DW |
5277 | if (consistent) |
5278 | dev->vol.dirty = 0; | |
5279 | else | |
5280 | dev->vol.dirty = 1; | |
a862209d DW |
5281 | super->updates_pending++; |
5282 | } | |
28bce06f | 5283 | |
01f157d7 | 5284 | return consistent; |
a862209d DW |
5285 | } |
5286 | ||
8d45d196 | 5287 | static void imsm_set_disk(struct active_array *a, int n, int state) |
845dea95 | 5288 | { |
8d45d196 DW |
5289 | int inst = a->info.container_member; |
5290 | struct intel_super *super = a->container->sb; | |
949c47a0 | 5291 | struct imsm_dev *dev = get_imsm_dev(super, inst); |
a965f303 | 5292 | struct imsm_map *map = get_imsm_map(dev, 0); |
8d45d196 | 5293 | struct imsm_disk *disk; |
0c046afd | 5294 | int failed; |
b10b37b8 | 5295 | __u32 ord; |
0c046afd | 5296 | __u8 map_state; |
8d45d196 DW |
5297 | |
5298 | if (n > map->num_members) | |
5299 | fprintf(stderr, "imsm: set_disk %d out of range 0..%d\n", | |
5300 | n, map->num_members - 1); | |
5301 | ||
5302 | if (n < 0) | |
5303 | return; | |
5304 | ||
4e6e574a | 5305 | dprintf("imsm: set_disk %d:%x\n", n, state); |
8d45d196 | 5306 | |
98130f40 | 5307 | ord = get_imsm_ord_tbl_ent(dev, n, -1); |
b10b37b8 | 5308 | disk = get_imsm_disk(super, ord_to_idx(ord)); |
8d45d196 | 5309 | |
5802a811 | 5310 | /* check for new failures */ |
0556e1a2 DW |
5311 | if (state & DS_FAULTY) { |
5312 | if (mark_failure(dev, disk, ord_to_idx(ord))) | |
5313 | super->updates_pending++; | |
8d45d196 | 5314 | } |
47ee5a45 | 5315 | |
19859edc | 5316 | /* check if in_sync */ |
0556e1a2 | 5317 | if (state & DS_INSYNC && ord & IMSM_ORD_REBUILD && is_rebuilding(dev)) { |
b10b37b8 DW |
5318 | struct imsm_map *migr_map = get_imsm_map(dev, 1); |
5319 | ||
5320 | set_imsm_ord_tbl_ent(migr_map, n, ord_to_idx(ord)); | |
19859edc DW |
5321 | super->updates_pending++; |
5322 | } | |
8d45d196 | 5323 | |
0c046afd DW |
5324 | failed = imsm_count_failed(super, dev); |
5325 | map_state = imsm_check_degraded(super, dev, failed); | |
5802a811 | 5326 | |
0c046afd DW |
5327 | /* check if recovery complete, newly degraded, or failed */ |
5328 | if (map_state == IMSM_T_STATE_NORMAL && is_rebuilding(dev)) { | |
f8f603f1 | 5329 | end_migration(dev, map_state); |
0556e1a2 DW |
5330 | map = get_imsm_map(dev, 0); |
5331 | map->failed_disk_num = ~0; | |
0c046afd | 5332 | super->updates_pending++; |
484240d8 | 5333 | a->last_checkpoint = 0; |
0c046afd DW |
5334 | } else if (map_state == IMSM_T_STATE_DEGRADED && |
5335 | map->map_state != map_state && | |
5336 | !dev->vol.migr_state) { | |
5337 | dprintf("imsm: mark degraded\n"); | |
5338 | map->map_state = map_state; | |
5339 | super->updates_pending++; | |
484240d8 | 5340 | a->last_checkpoint = 0; |
0c046afd DW |
5341 | } else if (map_state == IMSM_T_STATE_FAILED && |
5342 | map->map_state != map_state) { | |
5343 | dprintf("imsm: mark failed\n"); | |
f8f603f1 | 5344 | end_migration(dev, map_state); |
0c046afd | 5345 | super->updates_pending++; |
484240d8 | 5346 | a->last_checkpoint = 0; |
28bce06f AK |
5347 | } else if (is_gen_migration(dev)) { |
5348 | dprintf("imsm: Detected General Migration in state: "); | |
5349 | if (map_state == IMSM_T_STATE_NORMAL) { | |
5350 | end_migration(dev, map_state); | |
5351 | map = get_imsm_map(dev, 0); | |
5352 | map->failed_disk_num = ~0; | |
5353 | dprintf("normal\n"); | |
5354 | } else { | |
5355 | if (map_state == IMSM_T_STATE_DEGRADED) { | |
5356 | printf("degraded\n"); | |
5357 | end_migration(dev, map_state); | |
5358 | } else { | |
5359 | dprintf("failed\n"); | |
5360 | } | |
5361 | map->map_state = map_state; | |
5362 | } | |
5363 | super->updates_pending++; | |
5802a811 | 5364 | } |
845dea95 NB |
5365 | } |
5366 | ||
f796af5d | 5367 | static int store_imsm_mpb(int fd, struct imsm_super *mpb) |
c2a1e7da | 5368 | { |
f796af5d | 5369 | void *buf = mpb; |
c2a1e7da DW |
5370 | __u32 mpb_size = __le32_to_cpu(mpb->mpb_size); |
5371 | unsigned long long dsize; | |
5372 | unsigned long long sectors; | |
5373 | ||
5374 | get_dev_size(fd, NULL, &dsize); | |
5375 | ||
272f648f DW |
5376 | if (mpb_size > 512) { |
5377 | /* -1 to account for anchor */ | |
5378 | sectors = mpb_sectors(mpb) - 1; | |
c2a1e7da | 5379 | |
272f648f DW |
5380 | /* write the extended mpb to the sectors preceeding the anchor */ |
5381 | if (lseek64(fd, dsize - (512 * (2 + sectors)), SEEK_SET) < 0) | |
5382 | return 1; | |
c2a1e7da | 5383 | |
f21e18ca N |
5384 | if ((unsigned long long)write(fd, buf + 512, 512 * sectors) |
5385 | != 512 * sectors) | |
272f648f DW |
5386 | return 1; |
5387 | } | |
c2a1e7da | 5388 | |
272f648f DW |
5389 | /* first block is stored on second to last sector of the disk */ |
5390 | if (lseek64(fd, dsize - (512 * 2), SEEK_SET) < 0) | |
c2a1e7da DW |
5391 | return 1; |
5392 | ||
f796af5d | 5393 | if (write(fd, buf, 512) != 512) |
c2a1e7da DW |
5394 | return 1; |
5395 | ||
c2a1e7da DW |
5396 | return 0; |
5397 | } | |
5398 | ||
2e735d19 | 5399 | static void imsm_sync_metadata(struct supertype *container) |
845dea95 | 5400 | { |
2e735d19 | 5401 | struct intel_super *super = container->sb; |
c2a1e7da | 5402 | |
1a64be56 | 5403 | dprintf("sync metadata: %d\n", super->updates_pending); |
c2a1e7da DW |
5404 | if (!super->updates_pending) |
5405 | return; | |
5406 | ||
36988a3d | 5407 | write_super_imsm(container, 0); |
c2a1e7da DW |
5408 | |
5409 | super->updates_pending = 0; | |
845dea95 NB |
5410 | } |
5411 | ||
272906ef DW |
5412 | static struct dl *imsm_readd(struct intel_super *super, int idx, struct active_array *a) |
5413 | { | |
5414 | struct imsm_dev *dev = get_imsm_dev(super, a->info.container_member); | |
98130f40 | 5415 | int i = get_imsm_disk_idx(dev, idx, -1); |
272906ef DW |
5416 | struct dl *dl; |
5417 | ||
5418 | for (dl = super->disks; dl; dl = dl->next) | |
5419 | if (dl->index == i) | |
5420 | break; | |
5421 | ||
25ed7e59 | 5422 | if (dl && is_failed(&dl->disk)) |
272906ef DW |
5423 | dl = NULL; |
5424 | ||
5425 | if (dl) | |
5426 | dprintf("%s: found %x:%x\n", __func__, dl->major, dl->minor); | |
5427 | ||
5428 | return dl; | |
5429 | } | |
5430 | ||
a20d2ba5 | 5431 | static struct dl *imsm_add_spare(struct intel_super *super, int slot, |
8ba77d32 AK |
5432 | struct active_array *a, int activate_new, |
5433 | struct mdinfo *additional_test_list) | |
272906ef DW |
5434 | { |
5435 | struct imsm_dev *dev = get_imsm_dev(super, a->info.container_member); | |
98130f40 | 5436 | int idx = get_imsm_disk_idx(dev, slot, -1); |
a20d2ba5 DW |
5437 | struct imsm_super *mpb = super->anchor; |
5438 | struct imsm_map *map; | |
272906ef DW |
5439 | unsigned long long pos; |
5440 | struct mdinfo *d; | |
5441 | struct extent *ex; | |
a20d2ba5 | 5442 | int i, j; |
272906ef | 5443 | int found; |
569cc43f DW |
5444 | __u32 array_start = 0; |
5445 | __u32 array_end = 0; | |
272906ef | 5446 | struct dl *dl; |
6c932028 | 5447 | struct mdinfo *test_list; |
272906ef DW |
5448 | |
5449 | for (dl = super->disks; dl; dl = dl->next) { | |
5450 | /* If in this array, skip */ | |
5451 | for (d = a->info.devs ; d ; d = d->next) | |
e553d2a4 DW |
5452 | if (d->state_fd >= 0 && |
5453 | d->disk.major == dl->major && | |
272906ef | 5454 | d->disk.minor == dl->minor) { |
8ba77d32 AK |
5455 | dprintf("%x:%x already in array\n", |
5456 | dl->major, dl->minor); | |
272906ef DW |
5457 | break; |
5458 | } | |
5459 | if (d) | |
5460 | continue; | |
6c932028 AK |
5461 | test_list = additional_test_list; |
5462 | while (test_list) { | |
5463 | if (test_list->disk.major == dl->major && | |
5464 | test_list->disk.minor == dl->minor) { | |
8ba77d32 AK |
5465 | dprintf("%x:%x already in additional test list\n", |
5466 | dl->major, dl->minor); | |
5467 | break; | |
5468 | } | |
6c932028 | 5469 | test_list = test_list->next; |
8ba77d32 | 5470 | } |
6c932028 | 5471 | if (test_list) |
8ba77d32 | 5472 | continue; |
272906ef | 5473 | |
e553d2a4 | 5474 | /* skip in use or failed drives */ |
25ed7e59 | 5475 | if (is_failed(&dl->disk) || idx == dl->index || |
df474657 DW |
5476 | dl->index == -2) { |
5477 | dprintf("%x:%x status (failed: %d index: %d)\n", | |
25ed7e59 | 5478 | dl->major, dl->minor, is_failed(&dl->disk), idx); |
9a1608e5 DW |
5479 | continue; |
5480 | } | |
5481 | ||
a20d2ba5 DW |
5482 | /* skip pure spares when we are looking for partially |
5483 | * assimilated drives | |
5484 | */ | |
5485 | if (dl->index == -1 && !activate_new) | |
5486 | continue; | |
5487 | ||
272906ef | 5488 | /* Does this unused device have the requisite free space? |
a20d2ba5 | 5489 | * It needs to be able to cover all member volumes |
272906ef DW |
5490 | */ |
5491 | ex = get_extents(super, dl); | |
5492 | if (!ex) { | |
5493 | dprintf("cannot get extents\n"); | |
5494 | continue; | |
5495 | } | |
a20d2ba5 DW |
5496 | for (i = 0; i < mpb->num_raid_devs; i++) { |
5497 | dev = get_imsm_dev(super, i); | |
5498 | map = get_imsm_map(dev, 0); | |
272906ef | 5499 | |
a20d2ba5 DW |
5500 | /* check if this disk is already a member of |
5501 | * this array | |
272906ef | 5502 | */ |
620b1713 | 5503 | if (get_imsm_disk_slot(map, dl->index) >= 0) |
a20d2ba5 DW |
5504 | continue; |
5505 | ||
5506 | found = 0; | |
5507 | j = 0; | |
5508 | pos = 0; | |
5509 | array_start = __le32_to_cpu(map->pba_of_lba0); | |
329c8278 DW |
5510 | array_end = array_start + |
5511 | __le32_to_cpu(map->blocks_per_member) - 1; | |
a20d2ba5 DW |
5512 | |
5513 | do { | |
5514 | /* check that we can start at pba_of_lba0 with | |
5515 | * blocks_per_member of space | |
5516 | */ | |
329c8278 | 5517 | if (array_start >= pos && array_end < ex[j].start) { |
a20d2ba5 DW |
5518 | found = 1; |
5519 | break; | |
5520 | } | |
5521 | pos = ex[j].start + ex[j].size; | |
5522 | j++; | |
5523 | } while (ex[j-1].size); | |
5524 | ||
5525 | if (!found) | |
272906ef | 5526 | break; |
a20d2ba5 | 5527 | } |
272906ef DW |
5528 | |
5529 | free(ex); | |
a20d2ba5 | 5530 | if (i < mpb->num_raid_devs) { |
329c8278 DW |
5531 | dprintf("%x:%x does not have %u to %u available\n", |
5532 | dl->major, dl->minor, array_start, array_end); | |
272906ef DW |
5533 | /* No room */ |
5534 | continue; | |
a20d2ba5 DW |
5535 | } |
5536 | return dl; | |
272906ef DW |
5537 | } |
5538 | ||
5539 | return dl; | |
5540 | } | |
5541 | ||
95d07a2c LM |
5542 | |
5543 | static int imsm_rebuild_allowed(struct supertype *cont, int dev_idx, int failed) | |
5544 | { | |
5545 | struct imsm_dev *dev2; | |
5546 | struct imsm_map *map; | |
5547 | struct dl *idisk; | |
5548 | int slot; | |
5549 | int idx; | |
5550 | __u8 state; | |
5551 | ||
5552 | dev2 = get_imsm_dev(cont->sb, dev_idx); | |
5553 | if (dev2) { | |
5554 | state = imsm_check_degraded(cont->sb, dev2, failed); | |
5555 | if (state == IMSM_T_STATE_FAILED) { | |
5556 | map = get_imsm_map(dev2, 0); | |
5557 | if (!map) | |
5558 | return 1; | |
5559 | for (slot = 0; slot < map->num_members; slot++) { | |
5560 | /* | |
5561 | * Check if failed disks are deleted from intel | |
5562 | * disk list or are marked to be deleted | |
5563 | */ | |
98130f40 | 5564 | idx = get_imsm_disk_idx(dev2, slot, -1); |
95d07a2c LM |
5565 | idisk = get_imsm_dl_disk(cont->sb, idx); |
5566 | /* | |
5567 | * Do not rebuild the array if failed disks | |
5568 | * from failed sub-array are not removed from | |
5569 | * container. | |
5570 | */ | |
5571 | if (idisk && | |
5572 | is_failed(&idisk->disk) && | |
5573 | (idisk->action != DISK_REMOVE)) | |
5574 | return 0; | |
5575 | } | |
5576 | } | |
5577 | } | |
5578 | return 1; | |
5579 | } | |
5580 | ||
88758e9d DW |
5581 | static struct mdinfo *imsm_activate_spare(struct active_array *a, |
5582 | struct metadata_update **updates) | |
5583 | { | |
5584 | /** | |
d23fe947 DW |
5585 | * Find a device with unused free space and use it to replace a |
5586 | * failed/vacant region in an array. We replace failed regions one a | |
5587 | * array at a time. The result is that a new spare disk will be added | |
5588 | * to the first failed array and after the monitor has finished | |
5589 | * propagating failures the remainder will be consumed. | |
88758e9d | 5590 | * |
d23fe947 DW |
5591 | * FIXME add a capability for mdmon to request spares from another |
5592 | * container. | |
88758e9d DW |
5593 | */ |
5594 | ||
5595 | struct intel_super *super = a->container->sb; | |
88758e9d | 5596 | int inst = a->info.container_member; |
949c47a0 | 5597 | struct imsm_dev *dev = get_imsm_dev(super, inst); |
a965f303 | 5598 | struct imsm_map *map = get_imsm_map(dev, 0); |
88758e9d DW |
5599 | int failed = a->info.array.raid_disks; |
5600 | struct mdinfo *rv = NULL; | |
5601 | struct mdinfo *d; | |
5602 | struct mdinfo *di; | |
5603 | struct metadata_update *mu; | |
5604 | struct dl *dl; | |
5605 | struct imsm_update_activate_spare *u; | |
5606 | int num_spares = 0; | |
5607 | int i; | |
95d07a2c | 5608 | int allowed; |
88758e9d DW |
5609 | |
5610 | for (d = a->info.devs ; d ; d = d->next) { | |
5611 | if ((d->curr_state & DS_FAULTY) && | |
5612 | d->state_fd >= 0) | |
5613 | /* wait for Removal to happen */ | |
5614 | return NULL; | |
5615 | if (d->state_fd >= 0) | |
5616 | failed--; | |
5617 | } | |
5618 | ||
5619 | dprintf("imsm: activate spare: inst=%d failed=%d (%d) level=%d\n", | |
5620 | inst, failed, a->info.array.raid_disks, a->info.array.level); | |
1af97990 AK |
5621 | |
5622 | if (dev->vol.migr_state && | |
5623 | dev->vol.migr_type == MIGR_GEN_MIGR) | |
5624 | /* No repair during migration */ | |
5625 | return NULL; | |
5626 | ||
89c67882 AK |
5627 | if (a->info.array.level == 4) |
5628 | /* No repair for takeovered array | |
5629 | * imsm doesn't support raid4 | |
5630 | */ | |
5631 | return NULL; | |
5632 | ||
fb49eef2 | 5633 | if (imsm_check_degraded(super, dev, failed) != IMSM_T_STATE_DEGRADED) |
88758e9d DW |
5634 | return NULL; |
5635 | ||
95d07a2c LM |
5636 | /* |
5637 | * If there are any failed disks check state of the other volume. | |
5638 | * Block rebuild if the another one is failed until failed disks | |
5639 | * are removed from container. | |
5640 | */ | |
5641 | if (failed) { | |
5642 | dprintf("found failed disks in %s, check if there another" | |
5643 | "failed sub-array.\n", | |
5644 | dev->volume); | |
5645 | /* check if states of the other volumes allow for rebuild */ | |
5646 | for (i = 0; i < super->anchor->num_raid_devs; i++) { | |
5647 | if (i != inst) { | |
5648 | allowed = imsm_rebuild_allowed(a->container, | |
5649 | i, failed); | |
5650 | if (!allowed) | |
5651 | return NULL; | |
5652 | } | |
5653 | } | |
5654 | } | |
5655 | ||
88758e9d | 5656 | /* For each slot, if it is not working, find a spare */ |
88758e9d DW |
5657 | for (i = 0; i < a->info.array.raid_disks; i++) { |
5658 | for (d = a->info.devs ; d ; d = d->next) | |
5659 | if (d->disk.raid_disk == i) | |
5660 | break; | |
5661 | dprintf("found %d: %p %x\n", i, d, d?d->curr_state:0); | |
5662 | if (d && (d->state_fd >= 0)) | |
5663 | continue; | |
5664 | ||
272906ef | 5665 | /* |
a20d2ba5 DW |
5666 | * OK, this device needs recovery. Try to re-add the |
5667 | * previous occupant of this slot, if this fails see if | |
5668 | * we can continue the assimilation of a spare that was | |
5669 | * partially assimilated, finally try to activate a new | |
5670 | * spare. | |
272906ef DW |
5671 | */ |
5672 | dl = imsm_readd(super, i, a); | |
5673 | if (!dl) | |
8ba77d32 | 5674 | dl = imsm_add_spare(super, i, a, 0, NULL); |
a20d2ba5 | 5675 | if (!dl) |
8ba77d32 | 5676 | dl = imsm_add_spare(super, i, a, 1, NULL); |
272906ef DW |
5677 | if (!dl) |
5678 | continue; | |
5679 | ||
5680 | /* found a usable disk with enough space */ | |
5681 | di = malloc(sizeof(*di)); | |
79244939 DW |
5682 | if (!di) |
5683 | continue; | |
272906ef DW |
5684 | memset(di, 0, sizeof(*di)); |
5685 | ||
5686 | /* dl->index will be -1 in the case we are activating a | |
5687 | * pristine spare. imsm_process_update() will create a | |
5688 | * new index in this case. Once a disk is found to be | |
5689 | * failed in all member arrays it is kicked from the | |
5690 | * metadata | |
5691 | */ | |
5692 | di->disk.number = dl->index; | |
d23fe947 | 5693 | |
272906ef DW |
5694 | /* (ab)use di->devs to store a pointer to the device |
5695 | * we chose | |
5696 | */ | |
5697 | di->devs = (struct mdinfo *) dl; | |
5698 | ||
5699 | di->disk.raid_disk = i; | |
5700 | di->disk.major = dl->major; | |
5701 | di->disk.minor = dl->minor; | |
5702 | di->disk.state = 0; | |
d23534e4 | 5703 | di->recovery_start = 0; |
272906ef DW |
5704 | di->data_offset = __le32_to_cpu(map->pba_of_lba0); |
5705 | di->component_size = a->info.component_size; | |
5706 | di->container_member = inst; | |
148acb7b | 5707 | super->random = random32(); |
272906ef DW |
5708 | di->next = rv; |
5709 | rv = di; | |
5710 | num_spares++; | |
5711 | dprintf("%x:%x to be %d at %llu\n", dl->major, dl->minor, | |
5712 | i, di->data_offset); | |
88758e9d | 5713 | |
272906ef | 5714 | break; |
88758e9d DW |
5715 | } |
5716 | ||
5717 | if (!rv) | |
5718 | /* No spares found */ | |
5719 | return rv; | |
5720 | /* Now 'rv' has a list of devices to return. | |
5721 | * Create a metadata_update record to update the | |
5722 | * disk_ord_tbl for the array | |
5723 | */ | |
5724 | mu = malloc(sizeof(*mu)); | |
79244939 DW |
5725 | if (mu) { |
5726 | mu->buf = malloc(sizeof(struct imsm_update_activate_spare) * num_spares); | |
5727 | if (mu->buf == NULL) { | |
5728 | free(mu); | |
5729 | mu = NULL; | |
5730 | } | |
5731 | } | |
5732 | if (!mu) { | |
5733 | while (rv) { | |
5734 | struct mdinfo *n = rv->next; | |
5735 | ||
5736 | free(rv); | |
5737 | rv = n; | |
5738 | } | |
5739 | return NULL; | |
5740 | } | |
5741 | ||
88758e9d | 5742 | mu->space = NULL; |
cb23f1f4 | 5743 | mu->space_list = NULL; |
88758e9d DW |
5744 | mu->len = sizeof(struct imsm_update_activate_spare) * num_spares; |
5745 | mu->next = *updates; | |
5746 | u = (struct imsm_update_activate_spare *) mu->buf; | |
5747 | ||
5748 | for (di = rv ; di ; di = di->next) { | |
5749 | u->type = update_activate_spare; | |
d23fe947 DW |
5750 | u->dl = (struct dl *) di->devs; |
5751 | di->devs = NULL; | |
88758e9d DW |
5752 | u->slot = di->disk.raid_disk; |
5753 | u->array = inst; | |
5754 | u->next = u + 1; | |
5755 | u++; | |
5756 | } | |
5757 | (u-1)->next = NULL; | |
5758 | *updates = mu; | |
5759 | ||
5760 | return rv; | |
5761 | } | |
5762 | ||
54c2c1ea | 5763 | static int disks_overlap(struct intel_super *super, int idx, struct imsm_update_create_array *u) |
8273f55e | 5764 | { |
54c2c1ea DW |
5765 | struct imsm_dev *dev = get_imsm_dev(super, idx); |
5766 | struct imsm_map *map = get_imsm_map(dev, 0); | |
5767 | struct imsm_map *new_map = get_imsm_map(&u->dev, 0); | |
5768 | struct disk_info *inf = get_disk_info(u); | |
5769 | struct imsm_disk *disk; | |
8273f55e DW |
5770 | int i; |
5771 | int j; | |
8273f55e | 5772 | |
54c2c1ea | 5773 | for (i = 0; i < map->num_members; i++) { |
98130f40 | 5774 | disk = get_imsm_disk(super, get_imsm_disk_idx(dev, i, -1)); |
54c2c1ea DW |
5775 | for (j = 0; j < new_map->num_members; j++) |
5776 | if (serialcmp(disk->serial, inf[j].serial) == 0) | |
8273f55e DW |
5777 | return 1; |
5778 | } | |
5779 | ||
5780 | return 0; | |
5781 | } | |
5782 | ||
1a64be56 LM |
5783 | |
5784 | static struct dl *get_disk_super(struct intel_super *super, int major, int minor) | |
5785 | { | |
5786 | struct dl *dl = NULL; | |
5787 | for (dl = super->disks; dl; dl = dl->next) | |
5788 | if ((dl->major == major) && (dl->minor == minor)) | |
5789 | return dl; | |
5790 | return NULL; | |
5791 | } | |
5792 | ||
5793 | static int remove_disk_super(struct intel_super *super, int major, int minor) | |
5794 | { | |
5795 | struct dl *prev = NULL; | |
5796 | struct dl *dl; | |
5797 | ||
5798 | prev = NULL; | |
5799 | for (dl = super->disks; dl; dl = dl->next) { | |
5800 | if ((dl->major == major) && (dl->minor == minor)) { | |
5801 | /* remove */ | |
5802 | if (prev) | |
5803 | prev->next = dl->next; | |
5804 | else | |
5805 | super->disks = dl->next; | |
5806 | dl->next = NULL; | |
5807 | __free_imsm_disk(dl); | |
5808 | dprintf("%s: removed %x:%x\n", | |
5809 | __func__, major, minor); | |
5810 | break; | |
5811 | } | |
5812 | prev = dl; | |
5813 | } | |
5814 | return 0; | |
5815 | } | |
5816 | ||
f21e18ca | 5817 | static void imsm_delete(struct intel_super *super, struct dl **dlp, unsigned index); |
ae6aad82 | 5818 | |
1a64be56 LM |
5819 | static int add_remove_disk_update(struct intel_super *super) |
5820 | { | |
5821 | int check_degraded = 0; | |
5822 | struct dl *disk = NULL; | |
5823 | /* add/remove some spares to/from the metadata/contrainer */ | |
5824 | while (super->disk_mgmt_list) { | |
5825 | struct dl *disk_cfg; | |
5826 | ||
5827 | disk_cfg = super->disk_mgmt_list; | |
5828 | super->disk_mgmt_list = disk_cfg->next; | |
5829 | disk_cfg->next = NULL; | |
5830 | ||
5831 | if (disk_cfg->action == DISK_ADD) { | |
5832 | disk_cfg->next = super->disks; | |
5833 | super->disks = disk_cfg; | |
5834 | check_degraded = 1; | |
5835 | dprintf("%s: added %x:%x\n", | |
5836 | __func__, disk_cfg->major, | |
5837 | disk_cfg->minor); | |
5838 | } else if (disk_cfg->action == DISK_REMOVE) { | |
5839 | dprintf("Disk remove action processed: %x.%x\n", | |
5840 | disk_cfg->major, disk_cfg->minor); | |
5841 | disk = get_disk_super(super, | |
5842 | disk_cfg->major, | |
5843 | disk_cfg->minor); | |
5844 | if (disk) { | |
5845 | /* store action status */ | |
5846 | disk->action = DISK_REMOVE; | |
5847 | /* remove spare disks only */ | |
5848 | if (disk->index == -1) { | |
5849 | remove_disk_super(super, | |
5850 | disk_cfg->major, | |
5851 | disk_cfg->minor); | |
5852 | } | |
5853 | } | |
5854 | /* release allocate disk structure */ | |
5855 | __free_imsm_disk(disk_cfg); | |
5856 | } | |
5857 | } | |
5858 | return check_degraded; | |
5859 | } | |
5860 | ||
2e5dc010 N |
5861 | static int apply_reshape_container_disks_update(struct imsm_update_reshape *u, |
5862 | struct intel_super *super, | |
5863 | void ***space_list) | |
5864 | { | |
5865 | struct dl *new_disk; | |
5866 | struct intel_dev *id; | |
5867 | int i; | |
5868 | int delta_disks = u->new_raid_disks - u->old_raid_disks; | |
ee4beede | 5869 | int disk_count = u->old_raid_disks; |
2e5dc010 N |
5870 | void **tofree = NULL; |
5871 | int devices_to_reshape = 1; | |
5872 | struct imsm_super *mpb = super->anchor; | |
5873 | int ret_val = 0; | |
d098291a | 5874 | unsigned int dev_id; |
2e5dc010 | 5875 | |
ed7333bd | 5876 | dprintf("imsm: apply_reshape_container_disks_update()\n"); |
2e5dc010 N |
5877 | |
5878 | /* enable spares to use in array */ | |
5879 | for (i = 0; i < delta_disks; i++) { | |
5880 | new_disk = get_disk_super(super, | |
5881 | major(u->new_disks[i]), | |
5882 | minor(u->new_disks[i])); | |
ed7333bd AK |
5883 | dprintf("imsm: new disk for reshape is: %i:%i " |
5884 | "(%p, index = %i)\n", | |
2e5dc010 N |
5885 | major(u->new_disks[i]), minor(u->new_disks[i]), |
5886 | new_disk, new_disk->index); | |
5887 | if ((new_disk == NULL) || | |
5888 | ((new_disk->index >= 0) && | |
5889 | (new_disk->index < u->old_raid_disks))) | |
5890 | goto update_reshape_exit; | |
ee4beede | 5891 | new_disk->index = disk_count++; |
2e5dc010 N |
5892 | /* slot to fill in autolayout |
5893 | */ | |
5894 | new_disk->raiddisk = new_disk->index; | |
5895 | new_disk->disk.status |= | |
5896 | CONFIGURED_DISK; | |
5897 | new_disk->disk.status &= ~SPARE_DISK; | |
5898 | } | |
5899 | ||
ed7333bd AK |
5900 | dprintf("imsm: volume set mpb->num_raid_devs = %i\n", |
5901 | mpb->num_raid_devs); | |
2e5dc010 N |
5902 | /* manage changes in volume |
5903 | */ | |
d098291a | 5904 | for (dev_id = 0; dev_id < mpb->num_raid_devs; dev_id++) { |
2e5dc010 N |
5905 | void **sp = *space_list; |
5906 | struct imsm_dev *newdev; | |
5907 | struct imsm_map *newmap, *oldmap; | |
5908 | ||
d098291a AK |
5909 | for (id = super->devlist ; id; id = id->next) { |
5910 | if (id->index == dev_id) | |
5911 | break; | |
5912 | } | |
5913 | if (id == NULL) | |
5914 | break; | |
2e5dc010 N |
5915 | if (!sp) |
5916 | continue; | |
5917 | *space_list = *sp; | |
5918 | newdev = (void*)sp; | |
5919 | /* Copy the dev, but not (all of) the map */ | |
5920 | memcpy(newdev, id->dev, sizeof(*newdev)); | |
5921 | oldmap = get_imsm_map(id->dev, 0); | |
5922 | newmap = get_imsm_map(newdev, 0); | |
5923 | /* Copy the current map */ | |
5924 | memcpy(newmap, oldmap, sizeof_imsm_map(oldmap)); | |
5925 | /* update one device only | |
5926 | */ | |
5927 | if (devices_to_reshape) { | |
ed7333bd AK |
5928 | dprintf("imsm: modifying subdev: %i\n", |
5929 | id->index); | |
2e5dc010 N |
5930 | devices_to_reshape--; |
5931 | newdev->vol.migr_state = 1; | |
5932 | newdev->vol.curr_migr_unit = 0; | |
5933 | newdev->vol.migr_type = MIGR_GEN_MIGR; | |
5934 | newmap->num_members = u->new_raid_disks; | |
5935 | for (i = 0; i < delta_disks; i++) { | |
5936 | set_imsm_ord_tbl_ent(newmap, | |
5937 | u->old_raid_disks + i, | |
5938 | u->old_raid_disks + i); | |
5939 | } | |
5940 | /* New map is correct, now need to save old map | |
5941 | */ | |
5942 | newmap = get_imsm_map(newdev, 1); | |
5943 | memcpy(newmap, oldmap, sizeof_imsm_map(oldmap)); | |
5944 | ||
70bdf0dc | 5945 | imsm_set_array_size(newdev); |
2e5dc010 N |
5946 | } |
5947 | ||
5948 | sp = (void **)id->dev; | |
5949 | id->dev = newdev; | |
5950 | *sp = tofree; | |
5951 | tofree = sp; | |
5952 | } | |
819bc634 AK |
5953 | if (tofree) |
5954 | *space_list = tofree; | |
2e5dc010 N |
5955 | ret_val = 1; |
5956 | ||
5957 | update_reshape_exit: | |
5958 | ||
5959 | return ret_val; | |
5960 | } | |
5961 | ||
bb025c2f | 5962 | static int apply_takeover_update(struct imsm_update_takeover *u, |
8ca6df95 KW |
5963 | struct intel_super *super, |
5964 | void ***space_list) | |
bb025c2f KW |
5965 | { |
5966 | struct imsm_dev *dev = NULL; | |
8ca6df95 KW |
5967 | struct intel_dev *dv; |
5968 | struct imsm_dev *dev_new; | |
bb025c2f KW |
5969 | struct imsm_map *map; |
5970 | struct dl *dm, *du; | |
8ca6df95 | 5971 | int i; |
bb025c2f KW |
5972 | |
5973 | for (dv = super->devlist; dv; dv = dv->next) | |
5974 | if (dv->index == (unsigned int)u->subarray) { | |
5975 | dev = dv->dev; | |
5976 | break; | |
5977 | } | |
5978 | ||
5979 | if (dev == NULL) | |
5980 | return 0; | |
5981 | ||
5982 | map = get_imsm_map(dev, 0); | |
5983 | ||
5984 | if (u->direction == R10_TO_R0) { | |
43d5ec18 KW |
5985 | /* Number of failed disks must be half of initial disk number */ |
5986 | if (imsm_count_failed(super, dev) != (map->num_members / 2)) | |
5987 | return 0; | |
5988 | ||
bb025c2f KW |
5989 | /* iterate through devices to mark removed disks as spare */ |
5990 | for (dm = super->disks; dm; dm = dm->next) { | |
5991 | if (dm->disk.status & FAILED_DISK) { | |
5992 | int idx = dm->index; | |
5993 | /* update indexes on the disk list */ | |
5994 | /* FIXME this loop-with-the-loop looks wrong, I'm not convinced | |
5995 | the index values will end up being correct.... NB */ | |
5996 | for (du = super->disks; du; du = du->next) | |
5997 | if (du->index > idx) | |
5998 | du->index--; | |
5999 | /* mark as spare disk */ | |
6000 | dm->disk.status = SPARE_DISK; | |
6001 | dm->index = -1; | |
6002 | } | |
6003 | } | |
bb025c2f KW |
6004 | /* update map */ |
6005 | map->num_members = map->num_members / 2; | |
6006 | map->map_state = IMSM_T_STATE_NORMAL; | |
6007 | map->num_domains = 1; | |
6008 | map->raid_level = 0; | |
6009 | map->failed_disk_num = -1; | |
6010 | } | |
6011 | ||
8ca6df95 KW |
6012 | if (u->direction == R0_TO_R10) { |
6013 | void **space; | |
6014 | /* update slots in current disk list */ | |
6015 | for (dm = super->disks; dm; dm = dm->next) { | |
6016 | if (dm->index >= 0) | |
6017 | dm->index *= 2; | |
6018 | } | |
6019 | /* create new *missing* disks */ | |
6020 | for (i = 0; i < map->num_members; i++) { | |
6021 | space = *space_list; | |
6022 | if (!space) | |
6023 | continue; | |
6024 | *space_list = *space; | |
6025 | du = (void *)space; | |
6026 | memcpy(du, super->disks, sizeof(*du)); | |
6027 | du->disk.status = FAILED_DISK; | |
6028 | du->disk.scsi_id = 0; | |
6029 | du->fd = -1; | |
6030 | du->minor = 0; | |
6031 | du->major = 0; | |
6032 | du->index = (i * 2) + 1; | |
6033 | sprintf((char *)du->disk.serial, | |
6034 | " MISSING_%d", du->index); | |
6035 | sprintf((char *)du->serial, | |
6036 | "MISSING_%d", du->index); | |
6037 | du->next = super->missing; | |
6038 | super->missing = du; | |
6039 | } | |
6040 | /* create new dev and map */ | |
6041 | space = *space_list; | |
6042 | if (!space) | |
6043 | return 0; | |
6044 | *space_list = *space; | |
6045 | dev_new = (void *)space; | |
6046 | memcpy(dev_new, dev, sizeof(*dev)); | |
6047 | /* update new map */ | |
6048 | map = get_imsm_map(dev_new, 0); | |
6049 | map->failed_disk_num = map->num_members; | |
6050 | map->num_members = map->num_members * 2; | |
6051 | map->map_state = IMSM_T_STATE_NORMAL; | |
6052 | map->num_domains = 2; | |
6053 | map->raid_level = 1; | |
6054 | /* replace dev<->dev_new */ | |
6055 | dv->dev = dev_new; | |
6056 | } | |
bb025c2f KW |
6057 | /* update disk order table */ |
6058 | for (du = super->disks; du; du = du->next) | |
6059 | if (du->index >= 0) | |
6060 | set_imsm_ord_tbl_ent(map, du->index, du->index); | |
8ca6df95 KW |
6061 | for (du = super->missing; du; du = du->next) |
6062 | if (du->index >= 0) | |
6063 | set_imsm_ord_tbl_ent(map, du->index, | |
6064 | du->index | IMSM_ORD_REBUILD); | |
bb025c2f KW |
6065 | |
6066 | return 1; | |
6067 | } | |
6068 | ||
e8319a19 DW |
6069 | static void imsm_process_update(struct supertype *st, |
6070 | struct metadata_update *update) | |
6071 | { | |
6072 | /** | |
6073 | * crack open the metadata_update envelope to find the update record | |
6074 | * update can be one of: | |
d195167d AK |
6075 | * update_reshape_container_disks - all the arrays in the container |
6076 | * are being reshaped to have more devices. We need to mark | |
6077 | * the arrays for general migration and convert selected spares | |
6078 | * into active devices. | |
6079 | * update_activate_spare - a spare device has replaced a failed | |
e8319a19 DW |
6080 | * device in an array, update the disk_ord_tbl. If this disk is |
6081 | * present in all member arrays then also clear the SPARE_DISK | |
6082 | * flag | |
d195167d AK |
6083 | * update_create_array |
6084 | * update_kill_array | |
6085 | * update_rename_array | |
6086 | * update_add_remove_disk | |
e8319a19 DW |
6087 | */ |
6088 | struct intel_super *super = st->sb; | |
4d7b1503 | 6089 | struct imsm_super *mpb; |
e8319a19 DW |
6090 | enum imsm_update_type type = *(enum imsm_update_type *) update->buf; |
6091 | ||
4d7b1503 DW |
6092 | /* update requires a larger buf but the allocation failed */ |
6093 | if (super->next_len && !super->next_buf) { | |
6094 | super->next_len = 0; | |
6095 | return; | |
6096 | } | |
6097 | ||
6098 | if (super->next_buf) { | |
6099 | memcpy(super->next_buf, super->buf, super->len); | |
6100 | free(super->buf); | |
6101 | super->len = super->next_len; | |
6102 | super->buf = super->next_buf; | |
6103 | ||
6104 | super->next_len = 0; | |
6105 | super->next_buf = NULL; | |
6106 | } | |
6107 | ||
6108 | mpb = super->anchor; | |
6109 | ||
e8319a19 | 6110 | switch (type) { |
bb025c2f KW |
6111 | case update_takeover: { |
6112 | struct imsm_update_takeover *u = (void *)update->buf; | |
8ca6df95 | 6113 | if (apply_takeover_update(u, super, &update->space_list)) |
bb025c2f KW |
6114 | super->updates_pending++; |
6115 | break; | |
6116 | } | |
6117 | ||
78b10e66 | 6118 | case update_reshape_container_disks: { |
d195167d | 6119 | struct imsm_update_reshape *u = (void *)update->buf; |
2e5dc010 N |
6120 | if (apply_reshape_container_disks_update( |
6121 | u, super, &update->space_list)) | |
6122 | super->updates_pending++; | |
78b10e66 N |
6123 | break; |
6124 | } | |
e8319a19 DW |
6125 | case update_activate_spare: { |
6126 | struct imsm_update_activate_spare *u = (void *) update->buf; | |
949c47a0 | 6127 | struct imsm_dev *dev = get_imsm_dev(super, u->array); |
a965f303 | 6128 | struct imsm_map *map = get_imsm_map(dev, 0); |
0c046afd | 6129 | struct imsm_map *migr_map; |
e8319a19 DW |
6130 | struct active_array *a; |
6131 | struct imsm_disk *disk; | |
0c046afd | 6132 | __u8 to_state; |
e8319a19 | 6133 | struct dl *dl; |
e8319a19 | 6134 | unsigned int found; |
0c046afd | 6135 | int failed; |
98130f40 | 6136 | int victim = get_imsm_disk_idx(dev, u->slot, -1); |
e8319a19 DW |
6137 | int i; |
6138 | ||
6139 | for (dl = super->disks; dl; dl = dl->next) | |
d23fe947 | 6140 | if (dl == u->dl) |
e8319a19 DW |
6141 | break; |
6142 | ||
6143 | if (!dl) { | |
6144 | fprintf(stderr, "error: imsm_activate_spare passed " | |
1f24f035 DW |
6145 | "an unknown disk (index: %d)\n", |
6146 | u->dl->index); | |
e8319a19 DW |
6147 | return; |
6148 | } | |
6149 | ||
6150 | super->updates_pending++; | |
6151 | ||
0c046afd DW |
6152 | /* count failures (excluding rebuilds and the victim) |
6153 | * to determine map[0] state | |
6154 | */ | |
6155 | failed = 0; | |
6156 | for (i = 0; i < map->num_members; i++) { | |
6157 | if (i == u->slot) | |
6158 | continue; | |
98130f40 AK |
6159 | disk = get_imsm_disk(super, |
6160 | get_imsm_disk_idx(dev, i, -1)); | |
25ed7e59 | 6161 | if (!disk || is_failed(disk)) |
0c046afd DW |
6162 | failed++; |
6163 | } | |
6164 | ||
d23fe947 DW |
6165 | /* adding a pristine spare, assign a new index */ |
6166 | if (dl->index < 0) { | |
6167 | dl->index = super->anchor->num_disks; | |
6168 | super->anchor->num_disks++; | |
6169 | } | |
d23fe947 | 6170 | disk = &dl->disk; |
f2f27e63 DW |
6171 | disk->status |= CONFIGURED_DISK; |
6172 | disk->status &= ~SPARE_DISK; | |
e8319a19 | 6173 | |
0c046afd DW |
6174 | /* mark rebuild */ |
6175 | to_state = imsm_check_degraded(super, dev, failed); | |
6176 | map->map_state = IMSM_T_STATE_DEGRADED; | |
e3bba0e0 | 6177 | migrate(dev, to_state, MIGR_REBUILD); |
0c046afd DW |
6178 | migr_map = get_imsm_map(dev, 1); |
6179 | set_imsm_ord_tbl_ent(map, u->slot, dl->index); | |
6180 | set_imsm_ord_tbl_ent(migr_map, u->slot, dl->index | IMSM_ORD_REBUILD); | |
6181 | ||
148acb7b DW |
6182 | /* update the family_num to mark a new container |
6183 | * generation, being careful to record the existing | |
6184 | * family_num in orig_family_num to clean up after | |
6185 | * earlier mdadm versions that neglected to set it. | |
6186 | */ | |
6187 | if (mpb->orig_family_num == 0) | |
6188 | mpb->orig_family_num = mpb->family_num; | |
6189 | mpb->family_num += super->random; | |
6190 | ||
e8319a19 DW |
6191 | /* count arrays using the victim in the metadata */ |
6192 | found = 0; | |
6193 | for (a = st->arrays; a ; a = a->next) { | |
949c47a0 | 6194 | dev = get_imsm_dev(super, a->info.container_member); |
620b1713 DW |
6195 | map = get_imsm_map(dev, 0); |
6196 | ||
6197 | if (get_imsm_disk_slot(map, victim) >= 0) | |
6198 | found++; | |
e8319a19 DW |
6199 | } |
6200 | ||
24565c9a | 6201 | /* delete the victim if it is no longer being |
e8319a19 DW |
6202 | * utilized anywhere |
6203 | */ | |
e8319a19 | 6204 | if (!found) { |
ae6aad82 | 6205 | struct dl **dlp; |
24565c9a | 6206 | |
47ee5a45 DW |
6207 | /* We know that 'manager' isn't touching anything, |
6208 | * so it is safe to delete | |
6209 | */ | |
24565c9a | 6210 | for (dlp = &super->disks; *dlp; dlp = &(*dlp)->next) |
ae6aad82 DW |
6211 | if ((*dlp)->index == victim) |
6212 | break; | |
47ee5a45 DW |
6213 | |
6214 | /* victim may be on the missing list */ | |
6215 | if (!*dlp) | |
6216 | for (dlp = &super->missing; *dlp; dlp = &(*dlp)->next) | |
6217 | if ((*dlp)->index == victim) | |
6218 | break; | |
24565c9a | 6219 | imsm_delete(super, dlp, victim); |
e8319a19 | 6220 | } |
8273f55e DW |
6221 | break; |
6222 | } | |
6223 | case update_create_array: { | |
6224 | /* someone wants to create a new array, we need to be aware of | |
6225 | * a few races/collisions: | |
6226 | * 1/ 'Create' called by two separate instances of mdadm | |
6227 | * 2/ 'Create' versus 'activate_spare': mdadm has chosen | |
6228 | * devices that have since been assimilated via | |
6229 | * activate_spare. | |
6230 | * In the event this update can not be carried out mdadm will | |
6231 | * (FIX ME) notice that its update did not take hold. | |
6232 | */ | |
6233 | struct imsm_update_create_array *u = (void *) update->buf; | |
ba2de7ba | 6234 | struct intel_dev *dv; |
8273f55e DW |
6235 | struct imsm_dev *dev; |
6236 | struct imsm_map *map, *new_map; | |
6237 | unsigned long long start, end; | |
6238 | unsigned long long new_start, new_end; | |
6239 | int i; | |
54c2c1ea DW |
6240 | struct disk_info *inf; |
6241 | struct dl *dl; | |
8273f55e DW |
6242 | |
6243 | /* handle racing creates: first come first serve */ | |
6244 | if (u->dev_idx < mpb->num_raid_devs) { | |
6245 | dprintf("%s: subarray %d already defined\n", | |
6246 | __func__, u->dev_idx); | |
ba2de7ba | 6247 | goto create_error; |
8273f55e DW |
6248 | } |
6249 | ||
6250 | /* check update is next in sequence */ | |
6251 | if (u->dev_idx != mpb->num_raid_devs) { | |
6a3e913e DW |
6252 | dprintf("%s: can not create array %d expected index %d\n", |
6253 | __func__, u->dev_idx, mpb->num_raid_devs); | |
ba2de7ba | 6254 | goto create_error; |
8273f55e DW |
6255 | } |
6256 | ||
a965f303 | 6257 | new_map = get_imsm_map(&u->dev, 0); |
8273f55e DW |
6258 | new_start = __le32_to_cpu(new_map->pba_of_lba0); |
6259 | new_end = new_start + __le32_to_cpu(new_map->blocks_per_member); | |
54c2c1ea | 6260 | inf = get_disk_info(u); |
8273f55e DW |
6261 | |
6262 | /* handle activate_spare versus create race: | |
6263 | * check to make sure that overlapping arrays do not include | |
6264 | * overalpping disks | |
6265 | */ | |
6266 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
949c47a0 | 6267 | dev = get_imsm_dev(super, i); |
a965f303 | 6268 | map = get_imsm_map(dev, 0); |
8273f55e DW |
6269 | start = __le32_to_cpu(map->pba_of_lba0); |
6270 | end = start + __le32_to_cpu(map->blocks_per_member); | |
6271 | if ((new_start >= start && new_start <= end) || | |
6272 | (start >= new_start && start <= new_end)) | |
54c2c1ea DW |
6273 | /* overlap */; |
6274 | else | |
6275 | continue; | |
6276 | ||
6277 | if (disks_overlap(super, i, u)) { | |
8273f55e | 6278 | dprintf("%s: arrays overlap\n", __func__); |
ba2de7ba | 6279 | goto create_error; |
8273f55e DW |
6280 | } |
6281 | } | |
8273f55e | 6282 | |
949c47a0 DW |
6283 | /* check that prepare update was successful */ |
6284 | if (!update->space) { | |
6285 | dprintf("%s: prepare update failed\n", __func__); | |
ba2de7ba | 6286 | goto create_error; |
949c47a0 DW |
6287 | } |
6288 | ||
54c2c1ea DW |
6289 | /* check that all disks are still active before committing |
6290 | * changes. FIXME: could we instead handle this by creating a | |
6291 | * degraded array? That's probably not what the user expects, | |
6292 | * so better to drop this update on the floor. | |
6293 | */ | |
6294 | for (i = 0; i < new_map->num_members; i++) { | |
6295 | dl = serial_to_dl(inf[i].serial, super); | |
6296 | if (!dl) { | |
6297 | dprintf("%s: disk disappeared\n", __func__); | |
ba2de7ba | 6298 | goto create_error; |
54c2c1ea | 6299 | } |
949c47a0 DW |
6300 | } |
6301 | ||
8273f55e | 6302 | super->updates_pending++; |
54c2c1ea DW |
6303 | |
6304 | /* convert spares to members and fixup ord_tbl */ | |
6305 | for (i = 0; i < new_map->num_members; i++) { | |
6306 | dl = serial_to_dl(inf[i].serial, super); | |
6307 | if (dl->index == -1) { | |
6308 | dl->index = mpb->num_disks; | |
6309 | mpb->num_disks++; | |
6310 | dl->disk.status |= CONFIGURED_DISK; | |
6311 | dl->disk.status &= ~SPARE_DISK; | |
6312 | } | |
6313 | set_imsm_ord_tbl_ent(new_map, i, dl->index); | |
6314 | } | |
6315 | ||
ba2de7ba DW |
6316 | dv = update->space; |
6317 | dev = dv->dev; | |
949c47a0 DW |
6318 | update->space = NULL; |
6319 | imsm_copy_dev(dev, &u->dev); | |
ba2de7ba DW |
6320 | dv->index = u->dev_idx; |
6321 | dv->next = super->devlist; | |
6322 | super->devlist = dv; | |
8273f55e | 6323 | mpb->num_raid_devs++; |
8273f55e | 6324 | |
4d1313e9 | 6325 | imsm_update_version_info(super); |
8273f55e | 6326 | break; |
ba2de7ba DW |
6327 | create_error: |
6328 | /* mdmon knows how to release update->space, but not | |
6329 | * ((struct intel_dev *) update->space)->dev | |
6330 | */ | |
6331 | if (update->space) { | |
6332 | dv = update->space; | |
6333 | free(dv->dev); | |
6334 | } | |
8273f55e | 6335 | break; |
e8319a19 | 6336 | } |
33414a01 DW |
6337 | case update_kill_array: { |
6338 | struct imsm_update_kill_array *u = (void *) update->buf; | |
6339 | int victim = u->dev_idx; | |
6340 | struct active_array *a; | |
6341 | struct intel_dev **dp; | |
6342 | struct imsm_dev *dev; | |
6343 | ||
6344 | /* sanity check that we are not affecting the uuid of | |
6345 | * active arrays, or deleting an active array | |
6346 | * | |
6347 | * FIXME when immutable ids are available, but note that | |
6348 | * we'll also need to fixup the invalidated/active | |
6349 | * subarray indexes in mdstat | |
6350 | */ | |
6351 | for (a = st->arrays; a; a = a->next) | |
6352 | if (a->info.container_member >= victim) | |
6353 | break; | |
6354 | /* by definition if mdmon is running at least one array | |
6355 | * is active in the container, so checking | |
6356 | * mpb->num_raid_devs is just extra paranoia | |
6357 | */ | |
6358 | dev = get_imsm_dev(super, victim); | |
6359 | if (a || !dev || mpb->num_raid_devs == 1) { | |
6360 | dprintf("failed to delete subarray-%d\n", victim); | |
6361 | break; | |
6362 | } | |
6363 | ||
6364 | for (dp = &super->devlist; *dp;) | |
f21e18ca | 6365 | if ((*dp)->index == (unsigned)super->current_vol) { |
33414a01 DW |
6366 | *dp = (*dp)->next; |
6367 | } else { | |
f21e18ca | 6368 | if ((*dp)->index > (unsigned)victim) |
33414a01 DW |
6369 | (*dp)->index--; |
6370 | dp = &(*dp)->next; | |
6371 | } | |
6372 | mpb->num_raid_devs--; | |
6373 | super->updates_pending++; | |
6374 | break; | |
6375 | } | |
aa534678 DW |
6376 | case update_rename_array: { |
6377 | struct imsm_update_rename_array *u = (void *) update->buf; | |
6378 | char name[MAX_RAID_SERIAL_LEN+1]; | |
6379 | int target = u->dev_idx; | |
6380 | struct active_array *a; | |
6381 | struct imsm_dev *dev; | |
6382 | ||
6383 | /* sanity check that we are not affecting the uuid of | |
6384 | * an active array | |
6385 | */ | |
6386 | snprintf(name, MAX_RAID_SERIAL_LEN, "%s", (char *) u->name); | |
6387 | name[MAX_RAID_SERIAL_LEN] = '\0'; | |
6388 | for (a = st->arrays; a; a = a->next) | |
6389 | if (a->info.container_member == target) | |
6390 | break; | |
6391 | dev = get_imsm_dev(super, u->dev_idx); | |
6392 | if (a || !dev || !check_name(super, name, 1)) { | |
6393 | dprintf("failed to rename subarray-%d\n", target); | |
6394 | break; | |
6395 | } | |
6396 | ||
cdbe98cd | 6397 | snprintf((char *) dev->volume, MAX_RAID_SERIAL_LEN, "%s", name); |
aa534678 DW |
6398 | super->updates_pending++; |
6399 | break; | |
6400 | } | |
1a64be56 | 6401 | case update_add_remove_disk: { |
43dad3d6 | 6402 | /* we may be able to repair some arrays if disks are |
1a64be56 LM |
6403 | * being added, check teh status of add_remove_disk |
6404 | * if discs has been added. | |
6405 | */ | |
6406 | if (add_remove_disk_update(super)) { | |
43dad3d6 | 6407 | struct active_array *a; |
072b727f DW |
6408 | |
6409 | super->updates_pending++; | |
1a64be56 | 6410 | for (a = st->arrays; a; a = a->next) |
43dad3d6 DW |
6411 | a->check_degraded = 1; |
6412 | } | |
43dad3d6 | 6413 | break; |
e8319a19 | 6414 | } |
1a64be56 LM |
6415 | default: |
6416 | fprintf(stderr, "error: unsuported process update type:" | |
6417 | "(type: %d)\n", type); | |
6418 | } | |
e8319a19 | 6419 | } |
88758e9d | 6420 | |
8273f55e DW |
6421 | static void imsm_prepare_update(struct supertype *st, |
6422 | struct metadata_update *update) | |
6423 | { | |
949c47a0 | 6424 | /** |
4d7b1503 DW |
6425 | * Allocate space to hold new disk entries, raid-device entries or a new |
6426 | * mpb if necessary. The manager synchronously waits for updates to | |
6427 | * complete in the monitor, so new mpb buffers allocated here can be | |
6428 | * integrated by the monitor thread without worrying about live pointers | |
6429 | * in the manager thread. | |
8273f55e | 6430 | */ |
949c47a0 | 6431 | enum imsm_update_type type = *(enum imsm_update_type *) update->buf; |
4d7b1503 DW |
6432 | struct intel_super *super = st->sb; |
6433 | struct imsm_super *mpb = super->anchor; | |
6434 | size_t buf_len; | |
6435 | size_t len = 0; | |
949c47a0 DW |
6436 | |
6437 | switch (type) { | |
abedf5fc KW |
6438 | case update_takeover: { |
6439 | struct imsm_update_takeover *u = (void *)update->buf; | |
6440 | if (u->direction == R0_TO_R10) { | |
6441 | void **tail = (void **)&update->space_list; | |
6442 | struct imsm_dev *dev = get_imsm_dev(super, u->subarray); | |
6443 | struct imsm_map *map = get_imsm_map(dev, 0); | |
6444 | int num_members = map->num_members; | |
6445 | void *space; | |
6446 | int size, i; | |
6447 | int err = 0; | |
6448 | /* allocate memory for added disks */ | |
6449 | for (i = 0; i < num_members; i++) { | |
6450 | size = sizeof(struct dl); | |
6451 | space = malloc(size); | |
6452 | if (!space) { | |
6453 | err++; | |
6454 | break; | |
6455 | } | |
6456 | *tail = space; | |
6457 | tail = space; | |
6458 | *tail = NULL; | |
6459 | } | |
6460 | /* allocate memory for new device */ | |
6461 | size = sizeof_imsm_dev(super->devlist->dev, 0) + | |
6462 | (num_members * sizeof(__u32)); | |
6463 | space = malloc(size); | |
6464 | if (!space) | |
6465 | err++; | |
6466 | else { | |
6467 | *tail = space; | |
6468 | tail = space; | |
6469 | *tail = NULL; | |
6470 | } | |
6471 | if (!err) { | |
6472 | len = disks_to_mpb_size(num_members * 2); | |
6473 | } else { | |
6474 | /* if allocation didn't success, free buffer */ | |
6475 | while (update->space_list) { | |
6476 | void **sp = update->space_list; | |
6477 | update->space_list = *sp; | |
6478 | free(sp); | |
6479 | } | |
6480 | } | |
6481 | } | |
6482 | ||
6483 | break; | |
6484 | } | |
78b10e66 | 6485 | case update_reshape_container_disks: { |
d195167d AK |
6486 | /* Every raid device in the container is about to |
6487 | * gain some more devices, and we will enter a | |
6488 | * reconfiguration. | |
6489 | * So each 'imsm_map' will be bigger, and the imsm_vol | |
6490 | * will now hold 2 of them. | |
6491 | * Thus we need new 'struct imsm_dev' allocations sized | |
6492 | * as sizeof_imsm_dev but with more devices in both maps. | |
6493 | */ | |
6494 | struct imsm_update_reshape *u = (void *)update->buf; | |
6495 | struct intel_dev *dl; | |
6496 | void **space_tail = (void**)&update->space_list; | |
6497 | ||
6498 | dprintf("imsm: imsm_prepare_update() for update_reshape\n"); | |
6499 | ||
6500 | for (dl = super->devlist; dl; dl = dl->next) { | |
6501 | int size = sizeof_imsm_dev(dl->dev, 1); | |
6502 | void *s; | |
d677e0b8 AK |
6503 | if (u->new_raid_disks > u->old_raid_disks) |
6504 | size += sizeof(__u32)*2* | |
6505 | (u->new_raid_disks - u->old_raid_disks); | |
d195167d AK |
6506 | s = malloc(size); |
6507 | if (!s) | |
6508 | break; | |
6509 | *space_tail = s; | |
6510 | space_tail = s; | |
6511 | *space_tail = NULL; | |
6512 | } | |
6513 | ||
6514 | len = disks_to_mpb_size(u->new_raid_disks); | |
6515 | dprintf("New anchor length is %llu\n", (unsigned long long)len); | |
78b10e66 N |
6516 | break; |
6517 | } | |
949c47a0 DW |
6518 | case update_create_array: { |
6519 | struct imsm_update_create_array *u = (void *) update->buf; | |
ba2de7ba | 6520 | struct intel_dev *dv; |
54c2c1ea DW |
6521 | struct imsm_dev *dev = &u->dev; |
6522 | struct imsm_map *map = get_imsm_map(dev, 0); | |
6523 | struct dl *dl; | |
6524 | struct disk_info *inf; | |
6525 | int i; | |
6526 | int activate = 0; | |
949c47a0 | 6527 | |
54c2c1ea DW |
6528 | inf = get_disk_info(u); |
6529 | len = sizeof_imsm_dev(dev, 1); | |
ba2de7ba DW |
6530 | /* allocate a new super->devlist entry */ |
6531 | dv = malloc(sizeof(*dv)); | |
6532 | if (dv) { | |
6533 | dv->dev = malloc(len); | |
6534 | if (dv->dev) | |
6535 | update->space = dv; | |
6536 | else { | |
6537 | free(dv); | |
6538 | update->space = NULL; | |
6539 | } | |
6540 | } | |
949c47a0 | 6541 | |
54c2c1ea DW |
6542 | /* count how many spares will be converted to members */ |
6543 | for (i = 0; i < map->num_members; i++) { | |
6544 | dl = serial_to_dl(inf[i].serial, super); | |
6545 | if (!dl) { | |
6546 | /* hmm maybe it failed?, nothing we can do about | |
6547 | * it here | |
6548 | */ | |
6549 | continue; | |
6550 | } | |
6551 | if (count_memberships(dl, super) == 0) | |
6552 | activate++; | |
6553 | } | |
6554 | len += activate * sizeof(struct imsm_disk); | |
949c47a0 DW |
6555 | break; |
6556 | default: | |
6557 | break; | |
6558 | } | |
6559 | } | |
8273f55e | 6560 | |
4d7b1503 DW |
6561 | /* check if we need a larger metadata buffer */ |
6562 | if (super->next_buf) | |
6563 | buf_len = super->next_len; | |
6564 | else | |
6565 | buf_len = super->len; | |
6566 | ||
6567 | if (__le32_to_cpu(mpb->mpb_size) + len > buf_len) { | |
6568 | /* ok we need a larger buf than what is currently allocated | |
6569 | * if this allocation fails process_update will notice that | |
6570 | * ->next_len is set and ->next_buf is NULL | |
6571 | */ | |
6572 | buf_len = ROUND_UP(__le32_to_cpu(mpb->mpb_size) + len, 512); | |
6573 | if (super->next_buf) | |
6574 | free(super->next_buf); | |
6575 | ||
6576 | super->next_len = buf_len; | |
1f45a8ad DW |
6577 | if (posix_memalign(&super->next_buf, 512, buf_len) == 0) |
6578 | memset(super->next_buf, 0, buf_len); | |
6579 | else | |
4d7b1503 DW |
6580 | super->next_buf = NULL; |
6581 | } | |
8273f55e DW |
6582 | } |
6583 | ||
ae6aad82 | 6584 | /* must be called while manager is quiesced */ |
f21e18ca | 6585 | static void imsm_delete(struct intel_super *super, struct dl **dlp, unsigned index) |
ae6aad82 DW |
6586 | { |
6587 | struct imsm_super *mpb = super->anchor; | |
ae6aad82 DW |
6588 | struct dl *iter; |
6589 | struct imsm_dev *dev; | |
6590 | struct imsm_map *map; | |
24565c9a DW |
6591 | int i, j, num_members; |
6592 | __u32 ord; | |
ae6aad82 | 6593 | |
24565c9a DW |
6594 | dprintf("%s: deleting device[%d] from imsm_super\n", |
6595 | __func__, index); | |
ae6aad82 DW |
6596 | |
6597 | /* shift all indexes down one */ | |
6598 | for (iter = super->disks; iter; iter = iter->next) | |
f21e18ca | 6599 | if (iter->index > (int)index) |
ae6aad82 | 6600 | iter->index--; |
47ee5a45 | 6601 | for (iter = super->missing; iter; iter = iter->next) |
f21e18ca | 6602 | if (iter->index > (int)index) |
47ee5a45 | 6603 | iter->index--; |
ae6aad82 DW |
6604 | |
6605 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
6606 | dev = get_imsm_dev(super, i); | |
6607 | map = get_imsm_map(dev, 0); | |
24565c9a DW |
6608 | num_members = map->num_members; |
6609 | for (j = 0; j < num_members; j++) { | |
6610 | /* update ord entries being careful not to propagate | |
6611 | * ord-flags to the first map | |
6612 | */ | |
98130f40 | 6613 | ord = get_imsm_ord_tbl_ent(dev, j, -1); |
ae6aad82 | 6614 | |
24565c9a DW |
6615 | if (ord_to_idx(ord) <= index) |
6616 | continue; | |
ae6aad82 | 6617 | |
24565c9a DW |
6618 | map = get_imsm_map(dev, 0); |
6619 | set_imsm_ord_tbl_ent(map, j, ord_to_idx(ord - 1)); | |
6620 | map = get_imsm_map(dev, 1); | |
6621 | if (map) | |
6622 | set_imsm_ord_tbl_ent(map, j, ord - 1); | |
ae6aad82 DW |
6623 | } |
6624 | } | |
6625 | ||
6626 | mpb->num_disks--; | |
6627 | super->updates_pending++; | |
24565c9a DW |
6628 | if (*dlp) { |
6629 | struct dl *dl = *dlp; | |
6630 | ||
6631 | *dlp = (*dlp)->next; | |
6632 | __free_imsm_disk(dl); | |
6633 | } | |
ae6aad82 DW |
6634 | } |
6635 | ||
2cda7640 ML |
6636 | static char disk_by_path[] = "/dev/disk/by-path/"; |
6637 | ||
6638 | static const char *imsm_get_disk_controller_domain(const char *path) | |
6639 | { | |
2cda7640 | 6640 | char disk_path[PATH_MAX]; |
96234762 LM |
6641 | char *drv=NULL; |
6642 | struct stat st; | |
2cda7640 | 6643 | |
96234762 LM |
6644 | strncpy(disk_path, disk_by_path, PATH_MAX - 1); |
6645 | strncat(disk_path, path, PATH_MAX - strlen(disk_path) - 1); | |
6646 | if (stat(disk_path, &st) == 0) { | |
6647 | struct sys_dev* hba; | |
6648 | char *path=NULL; | |
6649 | ||
6650 | path = devt_to_devpath(st.st_rdev); | |
6651 | if (path == NULL) | |
6652 | return "unknown"; | |
6653 | hba = find_disk_attached_hba(-1, path); | |
6654 | if (hba && hba->type == SYS_DEV_SAS) | |
6655 | drv = "isci"; | |
6656 | else if (hba && hba->type == SYS_DEV_SATA) | |
6657 | drv = "ahci"; | |
6658 | else | |
6659 | drv = "unknown"; | |
6660 | dprintf("path: %s hba: %s attached: %s\n", | |
6661 | path, (hba) ? hba->path : "NULL", drv); | |
6662 | free(path); | |
6663 | if (hba) | |
6664 | free_sys_dev(&hba); | |
2cda7640 | 6665 | } |
96234762 | 6666 | return drv; |
2cda7640 ML |
6667 | } |
6668 | ||
78b10e66 N |
6669 | static int imsm_find_array_minor_by_subdev(int subdev, int container, int *minor) |
6670 | { | |
6671 | char subdev_name[20]; | |
6672 | struct mdstat_ent *mdstat; | |
6673 | ||
6674 | sprintf(subdev_name, "%d", subdev); | |
6675 | mdstat = mdstat_by_subdev(subdev_name, container); | |
6676 | if (!mdstat) | |
6677 | return -1; | |
6678 | ||
6679 | *minor = mdstat->devnum; | |
6680 | free_mdstat(mdstat); | |
6681 | return 0; | |
6682 | } | |
6683 | ||
6684 | static int imsm_reshape_is_allowed_on_container(struct supertype *st, | |
6685 | struct geo_params *geo, | |
6686 | int *old_raid_disks) | |
6687 | { | |
694575e7 KW |
6688 | /* currently we only support increasing the number of devices |
6689 | * for a container. This increases the number of device for each | |
6690 | * member array. They must all be RAID0 or RAID5. | |
6691 | */ | |
78b10e66 N |
6692 | int ret_val = 0; |
6693 | struct mdinfo *info, *member; | |
6694 | int devices_that_can_grow = 0; | |
6695 | ||
6696 | dprintf("imsm: imsm_reshape_is_allowed_on_container(ENTER): " | |
6697 | "st->devnum = (%i)\n", | |
6698 | st->devnum); | |
6699 | ||
6700 | if (geo->size != -1 || | |
6701 | geo->level != UnSet || | |
6702 | geo->layout != UnSet || | |
6703 | geo->chunksize != 0 || | |
6704 | geo->raid_disks == UnSet) { | |
6705 | dprintf("imsm: Container operation is allowed for " | |
6706 | "raid disks number change only.\n"); | |
6707 | return ret_val; | |
6708 | } | |
6709 | ||
6710 | info = container_content_imsm(st, NULL); | |
6711 | for (member = info; member; member = member->next) { | |
6712 | int result; | |
6713 | int minor; | |
6714 | ||
6715 | dprintf("imsm: checking device_num: %i\n", | |
6716 | member->container_member); | |
6717 | ||
d7d205bd | 6718 | if (geo->raid_disks <= member->array.raid_disks) { |
78b10e66 N |
6719 | /* we work on container for Online Capacity Expansion |
6720 | * only so raid_disks has to grow | |
6721 | */ | |
6722 | dprintf("imsm: for container operation raid disks " | |
6723 | "increase is required\n"); | |
6724 | break; | |
6725 | } | |
6726 | ||
6727 | if ((info->array.level != 0) && | |
6728 | (info->array.level != 5)) { | |
6729 | /* we cannot use this container with other raid level | |
6730 | */ | |
690aae1a | 6731 | dprintf("imsm: for container operation wrong" |
78b10e66 N |
6732 | " raid level (%i) detected\n", |
6733 | info->array.level); | |
6734 | break; | |
6735 | } else { | |
6736 | /* check for platform support | |
6737 | * for this raid level configuration | |
6738 | */ | |
6739 | struct intel_super *super = st->sb; | |
6740 | if (!is_raid_level_supported(super->orom, | |
6741 | member->array.level, | |
6742 | geo->raid_disks)) { | |
690aae1a | 6743 | dprintf("platform does not support raid%d with" |
78b10e66 N |
6744 | " %d disk%s\n", |
6745 | info->array.level, | |
6746 | geo->raid_disks, | |
6747 | geo->raid_disks > 1 ? "s" : ""); | |
6748 | break; | |
6749 | } | |
6750 | } | |
6751 | ||
6752 | if (*old_raid_disks && | |
6753 | info->array.raid_disks != *old_raid_disks) | |
6754 | break; | |
6755 | *old_raid_disks = info->array.raid_disks; | |
6756 | ||
6757 | /* All raid5 and raid0 volumes in container | |
6758 | * have to be ready for Online Capacity Expansion | |
6759 | * so they need to be assembled. We have already | |
6760 | * checked that no recovery etc is happening. | |
6761 | */ | |
6762 | result = imsm_find_array_minor_by_subdev(member->container_member, | |
6763 | st->container_dev, | |
6764 | &minor); | |
6765 | if (result < 0) { | |
6766 | dprintf("imsm: cannot find array\n"); | |
6767 | break; | |
6768 | } | |
6769 | devices_that_can_grow++; | |
6770 | } | |
6771 | sysfs_free(info); | |
6772 | if (!member && devices_that_can_grow) | |
6773 | ret_val = 1; | |
6774 | ||
6775 | if (ret_val) | |
6776 | dprintf("\tContainer operation allowed\n"); | |
6777 | else | |
6778 | dprintf("\tError: %i\n", ret_val); | |
6779 | ||
6780 | return ret_val; | |
6781 | } | |
6782 | ||
6783 | /* Function: get_spares_for_grow | |
6784 | * Description: Allocates memory and creates list of spare devices | |
6785 | * avaliable in container. Checks if spare drive size is acceptable. | |
6786 | * Parameters: Pointer to the supertype structure | |
6787 | * Returns: Pointer to the list of spare devices (mdinfo structure) on success, | |
6788 | * NULL if fail | |
6789 | */ | |
6790 | static struct mdinfo *get_spares_for_grow(struct supertype *st) | |
6791 | { | |
78b10e66 | 6792 | unsigned long long min_size = min_acceptable_spare_size_imsm(st); |
326727d9 | 6793 | return container_choose_spares(st, min_size, NULL, NULL, NULL, 0); |
78b10e66 N |
6794 | } |
6795 | ||
6796 | /****************************************************************************** | |
6797 | * function: imsm_create_metadata_update_for_reshape | |
6798 | * Function creates update for whole IMSM container. | |
6799 | * | |
6800 | ******************************************************************************/ | |
6801 | static int imsm_create_metadata_update_for_reshape( | |
6802 | struct supertype *st, | |
6803 | struct geo_params *geo, | |
6804 | int old_raid_disks, | |
6805 | struct imsm_update_reshape **updatep) | |
6806 | { | |
6807 | struct intel_super *super = st->sb; | |
6808 | struct imsm_super *mpb = super->anchor; | |
6809 | int update_memory_size = 0; | |
6810 | struct imsm_update_reshape *u = NULL; | |
6811 | struct mdinfo *spares = NULL; | |
6812 | int i; | |
6813 | int delta_disks = 0; | |
bbd24d86 | 6814 | struct mdinfo *dev; |
78b10e66 N |
6815 | |
6816 | dprintf("imsm_update_metadata_for_reshape(enter) raid_disks = %i\n", | |
6817 | geo->raid_disks); | |
6818 | ||
6819 | delta_disks = geo->raid_disks - old_raid_disks; | |
6820 | ||
6821 | /* size of all update data without anchor */ | |
6822 | update_memory_size = sizeof(struct imsm_update_reshape); | |
6823 | ||
6824 | /* now add space for spare disks that we need to add. */ | |
6825 | update_memory_size += sizeof(u->new_disks[0]) * (delta_disks - 1); | |
6826 | ||
6827 | u = calloc(1, update_memory_size); | |
6828 | if (u == NULL) { | |
6829 | dprintf("error: " | |
6830 | "cannot get memory for imsm_update_reshape update\n"); | |
6831 | return 0; | |
6832 | } | |
6833 | u->type = update_reshape_container_disks; | |
6834 | u->old_raid_disks = old_raid_disks; | |
6835 | u->new_raid_disks = geo->raid_disks; | |
6836 | ||
6837 | /* now get spare disks list | |
6838 | */ | |
6839 | spares = get_spares_for_grow(st); | |
6840 | ||
6841 | if (spares == NULL | |
6842 | || delta_disks > spares->array.spare_disks) { | |
6843 | dprintf("imsm: ERROR: Cannot get spare devices.\n"); | |
6844 | goto abort; | |
6845 | } | |
6846 | ||
6847 | /* we have got spares | |
6848 | * update disk list in imsm_disk list table in anchor | |
6849 | */ | |
6850 | dprintf("imsm: %i spares are available.\n\n", | |
6851 | spares->array.spare_disks); | |
6852 | ||
bbd24d86 | 6853 | dev = spares->devs; |
78b10e66 | 6854 | for (i = 0; i < delta_disks; i++) { |
78b10e66 N |
6855 | struct dl *dl; |
6856 | ||
bbd24d86 AK |
6857 | if (dev == NULL) |
6858 | break; | |
78b10e66 N |
6859 | u->new_disks[i] = makedev(dev->disk.major, |
6860 | dev->disk.minor); | |
6861 | dl = get_disk_super(super, dev->disk.major, dev->disk.minor); | |
ee4beede AK |
6862 | dl->index = mpb->num_disks; |
6863 | mpb->num_disks++; | |
bbd24d86 | 6864 | dev = dev->next; |
78b10e66 | 6865 | } |
78b10e66 N |
6866 | |
6867 | abort: | |
6868 | /* free spares | |
6869 | */ | |
6870 | sysfs_free(spares); | |
6871 | ||
d677e0b8 | 6872 | dprintf("imsm: reshape update preparation :"); |
78b10e66 | 6873 | if (i == delta_disks) { |
d677e0b8 | 6874 | dprintf(" OK\n"); |
78b10e66 N |
6875 | *updatep = u; |
6876 | return update_memory_size; | |
6877 | } | |
6878 | free(u); | |
d677e0b8 | 6879 | dprintf(" Error\n"); |
78b10e66 N |
6880 | |
6881 | return 0; | |
6882 | } | |
6883 | ||
8dd70bce AK |
6884 | static void imsm_update_metadata_locally(struct supertype *st, |
6885 | void *buf, int len) | |
6886 | { | |
6887 | struct metadata_update mu; | |
6888 | ||
6889 | mu.buf = buf; | |
6890 | mu.len = len; | |
6891 | mu.space = NULL; | |
6892 | mu.space_list = NULL; | |
6893 | mu.next = NULL; | |
6894 | imsm_prepare_update(st, &mu); | |
6895 | imsm_process_update(st, &mu); | |
6896 | ||
6897 | while (mu.space_list) { | |
6898 | void **space = mu.space_list; | |
6899 | mu.space_list = *space; | |
6900 | free(space); | |
6901 | } | |
6902 | } | |
78b10e66 | 6903 | |
471bceb6 | 6904 | /*************************************************************************** |
694575e7 | 6905 | * Function: imsm_analyze_change |
471bceb6 KW |
6906 | * Description: Function analyze change for single volume |
6907 | * and validate if transition is supported | |
694575e7 KW |
6908 | * Parameters: Geometry parameters, supertype structure |
6909 | * Returns: Operation type code on success, -1 if fail | |
471bceb6 KW |
6910 | ****************************************************************************/ |
6911 | enum imsm_reshape_type imsm_analyze_change(struct supertype *st, | |
6912 | struct geo_params *geo) | |
694575e7 | 6913 | { |
471bceb6 KW |
6914 | struct mdinfo info; |
6915 | int change = -1; | |
6916 | int check_devs = 0; | |
6917 | ||
6918 | getinfo_super_imsm_volume(st, &info, NULL); | |
6919 | ||
6920 | if ((geo->level != info.array.level) && | |
6921 | (geo->level >= 0) && | |
6922 | (geo->level != UnSet)) { | |
6923 | switch (info.array.level) { | |
6924 | case 0: | |
6925 | if (geo->level == 5) { | |
6926 | change = CH_LEVEL_MIGRATION; | |
6927 | check_devs = 1; | |
6928 | } | |
6929 | if (geo->level == 10) { | |
6930 | change = CH_TAKEOVER; | |
6931 | check_devs = 1; | |
6932 | } | |
dfe77a9e KW |
6933 | break; |
6934 | case 1: | |
6935 | if (geo->level == 0) { | |
6936 | change = CH_TAKEOVER; | |
6937 | check_devs = 1; | |
6938 | } | |
471bceb6 KW |
6939 | break; |
6940 | case 5: | |
6941 | if (geo->level != 0) | |
6942 | change = CH_LEVEL_MIGRATION; | |
6943 | break; | |
6944 | case 10: | |
6945 | if (geo->level == 0) { | |
6946 | change = CH_TAKEOVER; | |
6947 | check_devs = 1; | |
6948 | } | |
6949 | break; | |
6950 | } | |
6951 | if (change == -1) { | |
6952 | fprintf(stderr, | |
6953 | Name " Error. Level Migration from %d to %d " | |
6954 | "not supported!\n", | |
6955 | info.array.level, geo->level); | |
6956 | goto analyse_change_exit; | |
6957 | } | |
6958 | } else | |
6959 | geo->level = info.array.level; | |
6960 | ||
6961 | if ((geo->layout != info.array.layout) | |
6962 | && ((geo->layout != UnSet) && (geo->layout != -1))) { | |
6963 | change = CH_LEVEL_MIGRATION; | |
6964 | if ((info.array.layout == 0) | |
6965 | && (info.array.level == 5) | |
6966 | && (geo->layout == 5)) { | |
6967 | /* reshape 5 -> 4 */ | |
6968 | } else if ((info.array.layout == 5) | |
6969 | && (info.array.level == 5) | |
6970 | && (geo->layout == 0)) { | |
6971 | /* reshape 4 -> 5 */ | |
6972 | geo->layout = 0; | |
6973 | geo->level = 5; | |
6974 | } else { | |
6975 | fprintf(stderr, | |
6976 | Name " Error. Layout Migration from %d to %d " | |
6977 | "not supported!\n", | |
6978 | info.array.layout, geo->layout); | |
6979 | change = -1; | |
6980 | goto analyse_change_exit; | |
6981 | } | |
6982 | } else | |
6983 | geo->layout = info.array.layout; | |
6984 | ||
6985 | if ((geo->chunksize > 0) && (geo->chunksize != UnSet) | |
6986 | && (geo->chunksize != info.array.chunk_size)) | |
6987 | change = CH_CHUNK_MIGR; | |
6988 | else | |
6989 | geo->chunksize = info.array.chunk_size; | |
6990 | ||
6991 | if (!validate_geometry_imsm(st, | |
6992 | geo->level, | |
6993 | geo->layout, | |
6994 | geo->raid_disks, | |
6995 | (geo->chunksize / 1024), | |
6996 | geo->size, | |
6997 | 0, 0, 1)) | |
6998 | change = -1; | |
6999 | ||
7000 | if (check_devs) { | |
7001 | struct intel_super *super = st->sb; | |
7002 | struct imsm_super *mpb = super->anchor; | |
7003 | ||
7004 | if (mpb->num_raid_devs > 1) { | |
7005 | fprintf(stderr, | |
7006 | Name " Error. Cannot perform operation on %s" | |
7007 | "- for this operation it MUST be single " | |
7008 | "array in container\n", | |
7009 | geo->dev_name); | |
7010 | change = -1; | |
7011 | } | |
7012 | } | |
7013 | ||
7014 | analyse_change_exit: | |
7015 | ||
7016 | return change; | |
694575e7 KW |
7017 | } |
7018 | ||
bb025c2f KW |
7019 | int imsm_takeover(struct supertype *st, struct geo_params *geo) |
7020 | { | |
7021 | struct intel_super *super = st->sb; | |
7022 | struct imsm_update_takeover *u; | |
7023 | ||
7024 | u = malloc(sizeof(struct imsm_update_takeover)); | |
7025 | if (u == NULL) | |
7026 | return 1; | |
7027 | ||
7028 | u->type = update_takeover; | |
7029 | u->subarray = super->current_vol; | |
7030 | ||
7031 | /* 10->0 transition */ | |
7032 | if (geo->level == 0) | |
7033 | u->direction = R10_TO_R0; | |
7034 | ||
0529c688 KW |
7035 | /* 0->10 transition */ |
7036 | if (geo->level == 10) | |
7037 | u->direction = R0_TO_R10; | |
7038 | ||
bb025c2f KW |
7039 | /* update metadata locally */ |
7040 | imsm_update_metadata_locally(st, u, | |
7041 | sizeof(struct imsm_update_takeover)); | |
7042 | /* and possibly remotely */ | |
7043 | if (st->update_tail) | |
7044 | append_metadata_update(st, u, | |
7045 | sizeof(struct imsm_update_takeover)); | |
7046 | else | |
7047 | free(u); | |
7048 | ||
7049 | return 0; | |
7050 | } | |
7051 | ||
78b10e66 N |
7052 | static int imsm_reshape_super(struct supertype *st, long long size, int level, |
7053 | int layout, int chunksize, int raid_disks, | |
690aae1a | 7054 | char *backup, char *dev, int verbose) |
78b10e66 | 7055 | { |
78b10e66 N |
7056 | int ret_val = 1; |
7057 | struct geo_params geo; | |
7058 | ||
7059 | dprintf("imsm: reshape_super called.\n"); | |
7060 | ||
71204a50 | 7061 | memset(&geo, 0, sizeof(struct geo_params)); |
78b10e66 N |
7062 | |
7063 | geo.dev_name = dev; | |
694575e7 | 7064 | geo.dev_id = st->devnum; |
78b10e66 N |
7065 | geo.size = size; |
7066 | geo.level = level; | |
7067 | geo.layout = layout; | |
7068 | geo.chunksize = chunksize; | |
7069 | geo.raid_disks = raid_disks; | |
7070 | ||
7071 | dprintf("\tfor level : %i\n", geo.level); | |
7072 | dprintf("\tfor raid_disks : %i\n", geo.raid_disks); | |
7073 | ||
7074 | if (experimental() == 0) | |
7075 | return ret_val; | |
7076 | ||
78b10e66 | 7077 | if (st->container_dev == st->devnum) { |
694575e7 KW |
7078 | /* On container level we can only increase number of devices. */ |
7079 | dprintf("imsm: info: Container operation\n"); | |
78b10e66 N |
7080 | int old_raid_disks = 0; |
7081 | if (imsm_reshape_is_allowed_on_container( | |
7082 | st, &geo, &old_raid_disks)) { | |
7083 | struct imsm_update_reshape *u = NULL; | |
7084 | int len; | |
7085 | ||
7086 | len = imsm_create_metadata_update_for_reshape( | |
7087 | st, &geo, old_raid_disks, &u); | |
7088 | ||
ed08d51c AK |
7089 | if (len <= 0) { |
7090 | dprintf("imsm: Cannot prepare update\n"); | |
7091 | goto exit_imsm_reshape_super; | |
7092 | } | |
7093 | ||
8dd70bce AK |
7094 | ret_val = 0; |
7095 | /* update metadata locally */ | |
7096 | imsm_update_metadata_locally(st, u, len); | |
7097 | /* and possibly remotely */ | |
7098 | if (st->update_tail) | |
7099 | append_metadata_update(st, u, len); | |
7100 | else | |
ed08d51c | 7101 | free(u); |
8dd70bce | 7102 | |
694575e7 | 7103 | } else { |
690aae1a | 7104 | fprintf(stderr, Name "imsm: Operation is not allowed " |
78b10e66 | 7105 | "on this container\n"); |
694575e7 KW |
7106 | } |
7107 | } else { | |
7108 | /* On volume level we support following operations | |
471bceb6 KW |
7109 | * - takeover: raid10 -> raid0; raid0 -> raid10 |
7110 | * - chunk size migration | |
7111 | * - migration: raid5 -> raid0; raid0 -> raid5 | |
7112 | */ | |
7113 | struct intel_super *super = st->sb; | |
7114 | struct intel_dev *dev = super->devlist; | |
7115 | int change, devnum; | |
694575e7 | 7116 | dprintf("imsm: info: Volume operation\n"); |
471bceb6 KW |
7117 | /* find requested device */ |
7118 | while (dev) { | |
7119 | imsm_find_array_minor_by_subdev(dev->index, st->container_dev, &devnum); | |
7120 | if (devnum == geo.dev_id) | |
7121 | break; | |
7122 | dev = dev->next; | |
7123 | } | |
7124 | if (dev == NULL) { | |
7125 | fprintf(stderr, Name " Cannot find %s (%i) subarray\n", | |
7126 | geo.dev_name, geo.dev_id); | |
7127 | goto exit_imsm_reshape_super; | |
7128 | } | |
7129 | super->current_vol = dev->index; | |
694575e7 KW |
7130 | change = imsm_analyze_change(st, &geo); |
7131 | switch (change) { | |
471bceb6 | 7132 | case CH_TAKEOVER: |
bb025c2f | 7133 | ret_val = imsm_takeover(st, &geo); |
694575e7 | 7134 | break; |
471bceb6 KW |
7135 | case CH_CHUNK_MIGR: |
7136 | ret_val = 0; | |
694575e7 | 7137 | break; |
471bceb6 KW |
7138 | case CH_LEVEL_MIGRATION: |
7139 | ret_val = 0; | |
694575e7 | 7140 | break; |
471bceb6 KW |
7141 | default: |
7142 | ret_val = 1; | |
694575e7 | 7143 | } |
694575e7 | 7144 | } |
78b10e66 | 7145 | |
ed08d51c | 7146 | exit_imsm_reshape_super: |
78b10e66 N |
7147 | dprintf("imsm: reshape_super Exit code = %i\n", ret_val); |
7148 | return ret_val; | |
7149 | } | |
2cda7640 | 7150 | |
999b4972 N |
7151 | static int imsm_manage_reshape( |
7152 | int afd, struct mdinfo *sra, struct reshape *reshape, | |
7153 | struct supertype *st, unsigned long stripes, | |
7154 | int *fds, unsigned long long *offsets, | |
7155 | int dests, int *destfd, unsigned long long *destoffsets) | |
7156 | { | |
7157 | /* Just use child_monitor for now */ | |
7158 | return child_monitor( | |
7159 | afd, sra, reshape, st, stripes, | |
7160 | fds, offsets, dests, destfd, destoffsets); | |
7161 | } | |
71204a50 | 7162 | #endif /* MDASSEMBLE */ |
999b4972 | 7163 | |
cdddbdbc DW |
7164 | struct superswitch super_imsm = { |
7165 | #ifndef MDASSEMBLE | |
7166 | .examine_super = examine_super_imsm, | |
7167 | .brief_examine_super = brief_examine_super_imsm, | |
4737ae25 | 7168 | .brief_examine_subarrays = brief_examine_subarrays_imsm, |
9d84c8ea | 7169 | .export_examine_super = export_examine_super_imsm, |
cdddbdbc DW |
7170 | .detail_super = detail_super_imsm, |
7171 | .brief_detail_super = brief_detail_super_imsm, | |
bf5a934a | 7172 | .write_init_super = write_init_super_imsm, |
0e600426 N |
7173 | .validate_geometry = validate_geometry_imsm, |
7174 | .add_to_super = add_to_super_imsm, | |
1a64be56 | 7175 | .remove_from_super = remove_from_super_imsm, |
d665cc31 | 7176 | .detail_platform = detail_platform_imsm, |
33414a01 | 7177 | .kill_subarray = kill_subarray_imsm, |
aa534678 | 7178 | .update_subarray = update_subarray_imsm, |
2b959fbf | 7179 | .load_container = load_container_imsm, |
71204a50 N |
7180 | .default_geometry = default_geometry_imsm, |
7181 | .get_disk_controller_domain = imsm_get_disk_controller_domain, | |
7182 | .reshape_super = imsm_reshape_super, | |
7183 | .manage_reshape = imsm_manage_reshape, | |
cdddbdbc DW |
7184 | #endif |
7185 | .match_home = match_home_imsm, | |
7186 | .uuid_from_super= uuid_from_super_imsm, | |
7187 | .getinfo_super = getinfo_super_imsm, | |
5c4cd5da | 7188 | .getinfo_super_disks = getinfo_super_disks_imsm, |
cdddbdbc DW |
7189 | .update_super = update_super_imsm, |
7190 | ||
7191 | .avail_size = avail_size_imsm, | |
80e7f8c3 | 7192 | .min_acceptable_spare_size = min_acceptable_spare_size_imsm, |
cdddbdbc DW |
7193 | |
7194 | .compare_super = compare_super_imsm, | |
7195 | ||
7196 | .load_super = load_super_imsm, | |
bf5a934a | 7197 | .init_super = init_super_imsm, |
e683ca88 | 7198 | .store_super = store_super_imsm, |
cdddbdbc DW |
7199 | .free_super = free_super_imsm, |
7200 | .match_metadata_desc = match_metadata_desc_imsm, | |
bf5a934a | 7201 | .container_content = container_content_imsm, |
cdddbdbc | 7202 | |
cdddbdbc | 7203 | .external = 1, |
4cce4069 | 7204 | .name = "imsm", |
845dea95 | 7205 | |
0e600426 | 7206 | #ifndef MDASSEMBLE |
845dea95 NB |
7207 | /* for mdmon */ |
7208 | .open_new = imsm_open_new, | |
ed9d66aa | 7209 | .set_array_state= imsm_set_array_state, |
845dea95 NB |
7210 | .set_disk = imsm_set_disk, |
7211 | .sync_metadata = imsm_sync_metadata, | |
88758e9d | 7212 | .activate_spare = imsm_activate_spare, |
e8319a19 | 7213 | .process_update = imsm_process_update, |
8273f55e | 7214 | .prepare_update = imsm_prepare_update, |
0e600426 | 7215 | #endif /* MDASSEMBLE */ |
cdddbdbc | 7216 | }; |