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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 | 43 | |
19482bcc AK |
44 | /* supports RAID0 */ |
45 | #define MPB_ATTRIB_RAID0 __cpu_to_le32(0x00000001) | |
46 | /* supports RAID1 */ | |
47 | #define MPB_ATTRIB_RAID1 __cpu_to_le32(0x00000002) | |
48 | /* supports RAID10 */ | |
49 | #define MPB_ATTRIB_RAID10 __cpu_to_le32(0x00000004) | |
50 | /* supports RAID1E */ | |
51 | #define MPB_ATTRIB_RAID1E __cpu_to_le32(0x00000008) | |
52 | /* supports RAID5 */ | |
53 | #define MPB_ATTRIB_RAID5 __cpu_to_le32(0x00000010) | |
54 | /* supports RAID CNG */ | |
55 | #define MPB_ATTRIB_RAIDCNG __cpu_to_le32(0x00000020) | |
56 | /* supports expanded stripe sizes of 256K, 512K and 1MB */ | |
57 | #define MPB_ATTRIB_EXP_STRIPE_SIZE __cpu_to_le32(0x00000040) | |
58 | ||
59 | /* The OROM Support RST Caching of Volumes */ | |
60 | #define MPB_ATTRIB_NVM __cpu_to_le32(0x02000000) | |
61 | /* The OROM supports creating disks greater than 2TB */ | |
62 | #define MPB_ATTRIB_2TB_DISK __cpu_to_le32(0x04000000) | |
63 | /* The OROM supports Bad Block Management */ | |
64 | #define MPB_ATTRIB_BBM __cpu_to_le32(0x08000000) | |
65 | ||
66 | /* THe OROM Supports NVM Caching of Volumes */ | |
67 | #define MPB_ATTRIB_NEVER_USE2 __cpu_to_le32(0x10000000) | |
68 | /* The OROM supports creating volumes greater than 2TB */ | |
69 | #define MPB_ATTRIB_2TB __cpu_to_le32(0x20000000) | |
70 | /* originally for PMP, now it's wasted b/c. Never use this bit! */ | |
71 | #define MPB_ATTRIB_NEVER_USE __cpu_to_le32(0x40000000) | |
72 | /* Verify MPB contents against checksum after reading MPB */ | |
73 | #define MPB_ATTRIB_CHECKSUM_VERIFY __cpu_to_le32(0x80000000) | |
74 | ||
75 | /* Define all supported attributes that have to be accepted by mdadm | |
76 | */ | |
77 | #define MPB_ATTRIB_SUPPORTED MPB_ATTRIB_CHECKSUM_VERIFY | \ | |
78 | MPB_ATTRIB_2TB | \ | |
79 | MPB_ATTRIB_2TB_DISK | \ | |
80 | MPB_ATTRIB_RAID0 | \ | |
81 | MPB_ATTRIB_RAID1 | \ | |
82 | MPB_ATTRIB_RAID10 | \ | |
83 | MPB_ATTRIB_RAID5 | \ | |
84 | MPB_ATTRIB_EXP_STRIPE_SIZE | |
fe7ed8cb | 85 | |
8e59f3d8 | 86 | #define MPB_SECTOR_CNT 2210 |
c2c087e6 | 87 | #define IMSM_RESERVED_SECTORS 4096 |
979d38be | 88 | #define SECT_PER_MB_SHIFT 11 |
cdddbdbc DW |
89 | |
90 | /* Disk configuration info. */ | |
91 | #define IMSM_MAX_DEVICES 255 | |
92 | struct imsm_disk { | |
93 | __u8 serial[MAX_RAID_SERIAL_LEN];/* 0xD8 - 0xE7 ascii serial number */ | |
94 | __u32 total_blocks; /* 0xE8 - 0xEB total blocks */ | |
95 | __u32 scsi_id; /* 0xEC - 0xEF scsi ID */ | |
f2f27e63 DW |
96 | #define SPARE_DISK __cpu_to_le32(0x01) /* Spare */ |
97 | #define CONFIGURED_DISK __cpu_to_le32(0x02) /* Member of some RaidDev */ | |
98 | #define FAILED_DISK __cpu_to_le32(0x04) /* Permanent failure */ | |
cdddbdbc | 99 | __u32 status; /* 0xF0 - 0xF3 */ |
fe7ed8cb DW |
100 | __u32 owner_cfg_num; /* which config 0,1,2... owns this disk */ |
101 | #define IMSM_DISK_FILLERS 4 | |
cdddbdbc DW |
102 | __u32 filler[IMSM_DISK_FILLERS]; /* 0xF4 - 0x107 MPB_DISK_FILLERS for future expansion */ |
103 | }; | |
104 | ||
105 | /* RAID map configuration infos. */ | |
106 | struct imsm_map { | |
107 | __u32 pba_of_lba0; /* start address of partition */ | |
108 | __u32 blocks_per_member;/* blocks per member */ | |
109 | __u32 num_data_stripes; /* number of data stripes */ | |
110 | __u16 blocks_per_strip; | |
111 | __u8 map_state; /* Normal, Uninitialized, Degraded, Failed */ | |
112 | #define IMSM_T_STATE_NORMAL 0 | |
113 | #define IMSM_T_STATE_UNINITIALIZED 1 | |
e3bba0e0 DW |
114 | #define IMSM_T_STATE_DEGRADED 2 |
115 | #define IMSM_T_STATE_FAILED 3 | |
cdddbdbc DW |
116 | __u8 raid_level; |
117 | #define IMSM_T_RAID0 0 | |
118 | #define IMSM_T_RAID1 1 | |
119 | #define IMSM_T_RAID5 5 /* since metadata version 1.2.02 ? */ | |
120 | __u8 num_members; /* number of member disks */ | |
fe7ed8cb DW |
121 | __u8 num_domains; /* number of parity domains */ |
122 | __u8 failed_disk_num; /* valid only when state is degraded */ | |
252d23c0 | 123 | __u8 ddf; |
cdddbdbc | 124 | __u32 filler[7]; /* expansion area */ |
7eef0453 | 125 | #define IMSM_ORD_REBUILD (1 << 24) |
cdddbdbc | 126 | __u32 disk_ord_tbl[1]; /* disk_ord_tbl[num_members], |
7eef0453 DW |
127 | * top byte contains some flags |
128 | */ | |
cdddbdbc DW |
129 | } __attribute__ ((packed)); |
130 | ||
131 | struct imsm_vol { | |
f8f603f1 | 132 | __u32 curr_migr_unit; |
fe7ed8cb | 133 | __u32 checkpoint_id; /* id to access curr_migr_unit */ |
cdddbdbc | 134 | __u8 migr_state; /* Normal or Migrating */ |
e3bba0e0 DW |
135 | #define MIGR_INIT 0 |
136 | #define MIGR_REBUILD 1 | |
137 | #define MIGR_VERIFY 2 /* analagous to echo check > sync_action */ | |
138 | #define MIGR_GEN_MIGR 3 | |
139 | #define MIGR_STATE_CHANGE 4 | |
1484e727 | 140 | #define MIGR_REPAIR 5 |
cdddbdbc DW |
141 | __u8 migr_type; /* Initializing, Rebuilding, ... */ |
142 | __u8 dirty; | |
fe7ed8cb DW |
143 | __u8 fs_state; /* fast-sync state for CnG (0xff == disabled) */ |
144 | __u16 verify_errors; /* number of mismatches */ | |
145 | __u16 bad_blocks; /* number of bad blocks during verify */ | |
146 | __u32 filler[4]; | |
cdddbdbc DW |
147 | struct imsm_map map[1]; |
148 | /* here comes another one if migr_state */ | |
149 | } __attribute__ ((packed)); | |
150 | ||
151 | struct imsm_dev { | |
fe7ed8cb | 152 | __u8 volume[MAX_RAID_SERIAL_LEN]; |
cdddbdbc DW |
153 | __u32 size_low; |
154 | __u32 size_high; | |
fe7ed8cb DW |
155 | #define DEV_BOOTABLE __cpu_to_le32(0x01) |
156 | #define DEV_BOOT_DEVICE __cpu_to_le32(0x02) | |
157 | #define DEV_READ_COALESCING __cpu_to_le32(0x04) | |
158 | #define DEV_WRITE_COALESCING __cpu_to_le32(0x08) | |
159 | #define DEV_LAST_SHUTDOWN_DIRTY __cpu_to_le32(0x10) | |
160 | #define DEV_HIDDEN_AT_BOOT __cpu_to_le32(0x20) | |
161 | #define DEV_CURRENTLY_HIDDEN __cpu_to_le32(0x40) | |
162 | #define DEV_VERIFY_AND_FIX __cpu_to_le32(0x80) | |
163 | #define DEV_MAP_STATE_UNINIT __cpu_to_le32(0x100) | |
164 | #define DEV_NO_AUTO_RECOVERY __cpu_to_le32(0x200) | |
165 | #define DEV_CLONE_N_GO __cpu_to_le32(0x400) | |
166 | #define DEV_CLONE_MAN_SYNC __cpu_to_le32(0x800) | |
167 | #define DEV_CNG_MASTER_DISK_NUM __cpu_to_le32(0x1000) | |
cdddbdbc DW |
168 | __u32 status; /* Persistent RaidDev status */ |
169 | __u32 reserved_blocks; /* Reserved blocks at beginning of volume */ | |
fe7ed8cb DW |
170 | __u8 migr_priority; |
171 | __u8 num_sub_vols; | |
172 | __u8 tid; | |
173 | __u8 cng_master_disk; | |
174 | __u16 cache_policy; | |
175 | __u8 cng_state; | |
176 | __u8 cng_sub_state; | |
177 | #define IMSM_DEV_FILLERS 10 | |
cdddbdbc DW |
178 | __u32 filler[IMSM_DEV_FILLERS]; |
179 | struct imsm_vol vol; | |
180 | } __attribute__ ((packed)); | |
181 | ||
182 | struct imsm_super { | |
183 | __u8 sig[MAX_SIGNATURE_LENGTH]; /* 0x00 - 0x1F */ | |
184 | __u32 check_sum; /* 0x20 - 0x23 MPB Checksum */ | |
185 | __u32 mpb_size; /* 0x24 - 0x27 Size of MPB */ | |
186 | __u32 family_num; /* 0x28 - 0x2B Checksum from first time this config was written */ | |
187 | __u32 generation_num; /* 0x2C - 0x2F Incremented each time this array's MPB is written */ | |
604b746f JD |
188 | __u32 error_log_size; /* 0x30 - 0x33 in bytes */ |
189 | __u32 attributes; /* 0x34 - 0x37 */ | |
cdddbdbc DW |
190 | __u8 num_disks; /* 0x38 Number of configured disks */ |
191 | __u8 num_raid_devs; /* 0x39 Number of configured volumes */ | |
604b746f JD |
192 | __u8 error_log_pos; /* 0x3A */ |
193 | __u8 fill[1]; /* 0x3B */ | |
194 | __u32 cache_size; /* 0x3c - 0x40 in mb */ | |
195 | __u32 orig_family_num; /* 0x40 - 0x43 original family num */ | |
196 | __u32 pwr_cycle_count; /* 0x44 - 0x47 simulated power cycle count for array */ | |
197 | __u32 bbm_log_size; /* 0x48 - 0x4B - size of bad Block Mgmt Log in bytes */ | |
198 | #define IMSM_FILLERS 35 | |
199 | __u32 filler[IMSM_FILLERS]; /* 0x4C - 0xD7 RAID_MPB_FILLERS */ | |
cdddbdbc DW |
200 | struct imsm_disk disk[1]; /* 0xD8 diskTbl[numDisks] */ |
201 | /* here comes imsm_dev[num_raid_devs] */ | |
604b746f | 202 | /* here comes BBM logs */ |
cdddbdbc DW |
203 | } __attribute__ ((packed)); |
204 | ||
604b746f JD |
205 | #define BBM_LOG_MAX_ENTRIES 254 |
206 | ||
207 | struct bbm_log_entry { | |
208 | __u64 defective_block_start; | |
209 | #define UNREADABLE 0xFFFFFFFF | |
210 | __u32 spare_block_offset; | |
211 | __u16 remapped_marked_count; | |
212 | __u16 disk_ordinal; | |
213 | } __attribute__ ((__packed__)); | |
214 | ||
215 | struct bbm_log { | |
216 | __u32 signature; /* 0xABADB10C */ | |
217 | __u32 entry_count; | |
218 | __u32 reserved_spare_block_count; /* 0 */ | |
219 | __u32 reserved; /* 0xFFFF */ | |
220 | __u64 first_spare_lba; | |
221 | struct bbm_log_entry mapped_block_entries[BBM_LOG_MAX_ENTRIES]; | |
222 | } __attribute__ ((__packed__)); | |
223 | ||
224 | ||
cdddbdbc DW |
225 | #ifndef MDASSEMBLE |
226 | static char *map_state_str[] = { "normal", "uninitialized", "degraded", "failed" }; | |
227 | #endif | |
228 | ||
8e59f3d8 AK |
229 | #define RAID_DISK_RESERVED_BLOCKS_IMSM_HI 2209 |
230 | ||
231 | #define GEN_MIGR_AREA_SIZE 2048 /* General Migration Copy Area size in blocks */ | |
232 | ||
233 | #define UNIT_SRC_NORMAL 0 /* Source data for curr_migr_unit must | |
234 | * be recovered using srcMap */ | |
235 | #define UNIT_SRC_IN_CP_AREA 1 /* Source data for curr_migr_unit has | |
236 | * already been migrated and must | |
237 | * be recovered from checkpoint area */ | |
238 | struct migr_record { | |
239 | __u32 rec_status; /* Status used to determine how to restart | |
240 | * migration in case it aborts | |
241 | * in some fashion */ | |
242 | __u32 curr_migr_unit; /* 0..numMigrUnits-1 */ | |
243 | __u32 family_num; /* Family number of MPB | |
244 | * containing the RaidDev | |
245 | * that is migrating */ | |
246 | __u32 ascending_migr; /* True if migrating in increasing | |
247 | * order of lbas */ | |
248 | __u32 blocks_per_unit; /* Num disk blocks per unit of operation */ | |
249 | __u32 dest_depth_per_unit; /* Num member blocks each destMap | |
250 | * member disk | |
251 | * advances per unit-of-operation */ | |
252 | __u32 ckpt_area_pba; /* Pba of first block of ckpt copy area */ | |
253 | __u32 dest_1st_member_lba; /* First member lba on first | |
254 | * stripe of destination */ | |
255 | __u32 num_migr_units; /* Total num migration units-of-op */ | |
256 | __u32 post_migr_vol_cap; /* Size of volume after | |
257 | * migration completes */ | |
258 | __u32 post_migr_vol_cap_hi; /* Expansion space for LBA64 */ | |
259 | __u32 ckpt_read_disk_num; /* Which member disk in destSubMap[0] the | |
260 | * migration ckpt record was read from | |
261 | * (for recovered migrations) */ | |
262 | } __attribute__ ((__packed__)); | |
263 | ||
1484e727 DW |
264 | static __u8 migr_type(struct imsm_dev *dev) |
265 | { | |
266 | if (dev->vol.migr_type == MIGR_VERIFY && | |
267 | dev->status & DEV_VERIFY_AND_FIX) | |
268 | return MIGR_REPAIR; | |
269 | else | |
270 | return dev->vol.migr_type; | |
271 | } | |
272 | ||
273 | static void set_migr_type(struct imsm_dev *dev, __u8 migr_type) | |
274 | { | |
275 | /* for compatibility with older oroms convert MIGR_REPAIR, into | |
276 | * MIGR_VERIFY w/ DEV_VERIFY_AND_FIX status | |
277 | */ | |
278 | if (migr_type == MIGR_REPAIR) { | |
279 | dev->vol.migr_type = MIGR_VERIFY; | |
280 | dev->status |= DEV_VERIFY_AND_FIX; | |
281 | } else { | |
282 | dev->vol.migr_type = migr_type; | |
283 | dev->status &= ~DEV_VERIFY_AND_FIX; | |
284 | } | |
285 | } | |
286 | ||
87eb16df | 287 | static unsigned int sector_count(__u32 bytes) |
cdddbdbc | 288 | { |
87eb16df DW |
289 | return ((bytes + (512-1)) & (~(512-1))) / 512; |
290 | } | |
cdddbdbc | 291 | |
87eb16df DW |
292 | static unsigned int mpb_sectors(struct imsm_super *mpb) |
293 | { | |
294 | return sector_count(__le32_to_cpu(mpb->mpb_size)); | |
cdddbdbc DW |
295 | } |
296 | ||
ba2de7ba DW |
297 | struct intel_dev { |
298 | struct imsm_dev *dev; | |
299 | struct intel_dev *next; | |
f21e18ca | 300 | unsigned index; |
ba2de7ba DW |
301 | }; |
302 | ||
88654014 LM |
303 | struct intel_hba { |
304 | enum sys_dev_type type; | |
305 | char *path; | |
306 | char *pci_id; | |
307 | struct intel_hba *next; | |
308 | }; | |
309 | ||
1a64be56 LM |
310 | enum action { |
311 | DISK_REMOVE = 1, | |
312 | DISK_ADD | |
313 | }; | |
cdddbdbc DW |
314 | /* internal representation of IMSM metadata */ |
315 | struct intel_super { | |
316 | union { | |
949c47a0 DW |
317 | void *buf; /* O_DIRECT buffer for reading/writing metadata */ |
318 | struct imsm_super *anchor; /* immovable parameters */ | |
cdddbdbc | 319 | }; |
8e59f3d8 AK |
320 | union { |
321 | void *migr_rec_buf; /* buffer for I/O operations */ | |
322 | struct migr_record *migr_rec; /* migration record */ | |
323 | }; | |
949c47a0 | 324 | size_t len; /* size of the 'buf' allocation */ |
4d7b1503 DW |
325 | void *next_buf; /* for realloc'ing buf from the manager */ |
326 | size_t next_len; | |
c2c087e6 | 327 | int updates_pending; /* count of pending updates for mdmon */ |
bf5a934a | 328 | int current_vol; /* index of raid device undergoing creation */ |
0dcecb2e | 329 | __u32 create_offset; /* common start for 'current_vol' */ |
148acb7b | 330 | __u32 random; /* random data for seeding new family numbers */ |
ba2de7ba | 331 | struct intel_dev *devlist; |
cdddbdbc DW |
332 | struct dl { |
333 | struct dl *next; | |
334 | int index; | |
335 | __u8 serial[MAX_RAID_SERIAL_LEN]; | |
336 | int major, minor; | |
337 | char *devname; | |
b9f594fe | 338 | struct imsm_disk disk; |
cdddbdbc | 339 | int fd; |
0dcecb2e DW |
340 | int extent_cnt; |
341 | struct extent *e; /* for determining freespace @ create */ | |
efb30e7f | 342 | int raiddisk; /* slot to fill in autolayout */ |
1a64be56 | 343 | enum action action; |
cdddbdbc | 344 | } *disks; |
1a64be56 LM |
345 | struct dl *disk_mgmt_list; /* list of disks to add/remove while mdmon |
346 | active */ | |
47ee5a45 | 347 | struct dl *missing; /* disks removed while we weren't looking */ |
43dad3d6 | 348 | struct bbm_log *bbm_log; |
88654014 | 349 | struct intel_hba *hba; /* device path of the raid controller for this metadata */ |
88c32bb1 | 350 | const struct imsm_orom *orom; /* platform firmware support */ |
a2b97981 DW |
351 | struct intel_super *next; /* (temp) list for disambiguating family_num */ |
352 | }; | |
353 | ||
354 | struct intel_disk { | |
355 | struct imsm_disk disk; | |
356 | #define IMSM_UNKNOWN_OWNER (-1) | |
357 | int owner; | |
358 | struct intel_disk *next; | |
cdddbdbc DW |
359 | }; |
360 | ||
c2c087e6 DW |
361 | struct extent { |
362 | unsigned long long start, size; | |
363 | }; | |
364 | ||
694575e7 KW |
365 | /* definitions of reshape process types */ |
366 | enum imsm_reshape_type { | |
367 | CH_TAKEOVER, | |
b5347799 | 368 | CH_MIGRATION, |
694575e7 KW |
369 | }; |
370 | ||
88758e9d DW |
371 | /* definition of messages passed to imsm_process_update */ |
372 | enum imsm_update_type { | |
373 | update_activate_spare, | |
8273f55e | 374 | update_create_array, |
33414a01 | 375 | update_kill_array, |
aa534678 | 376 | update_rename_array, |
1a64be56 | 377 | update_add_remove_disk, |
78b10e66 | 378 | update_reshape_container_disks, |
48c5303a | 379 | update_reshape_migration, |
2d40f3a1 AK |
380 | update_takeover, |
381 | update_general_migration_checkpoint, | |
88758e9d DW |
382 | }; |
383 | ||
384 | struct imsm_update_activate_spare { | |
385 | enum imsm_update_type type; | |
d23fe947 | 386 | struct dl *dl; |
88758e9d DW |
387 | int slot; |
388 | int array; | |
389 | struct imsm_update_activate_spare *next; | |
390 | }; | |
391 | ||
78b10e66 N |
392 | struct geo_params { |
393 | int dev_id; | |
394 | char *dev_name; | |
395 | long long size; | |
396 | int level; | |
397 | int layout; | |
398 | int chunksize; | |
399 | int raid_disks; | |
400 | }; | |
401 | ||
bb025c2f KW |
402 | enum takeover_direction { |
403 | R10_TO_R0, | |
404 | R0_TO_R10 | |
405 | }; | |
406 | struct imsm_update_takeover { | |
407 | enum imsm_update_type type; | |
408 | int subarray; | |
409 | enum takeover_direction direction; | |
410 | }; | |
78b10e66 N |
411 | |
412 | struct imsm_update_reshape { | |
413 | enum imsm_update_type type; | |
414 | int old_raid_disks; | |
415 | int new_raid_disks; | |
48c5303a PC |
416 | |
417 | int new_disks[1]; /* new_raid_disks - old_raid_disks makedev number */ | |
418 | }; | |
419 | ||
420 | struct imsm_update_reshape_migration { | |
421 | enum imsm_update_type type; | |
422 | int old_raid_disks; | |
423 | int new_raid_disks; | |
424 | /* fields for array migration changes | |
425 | */ | |
426 | int subdev; | |
427 | int new_level; | |
428 | int new_layout; | |
4bba0439 | 429 | int new_chunksize; |
48c5303a | 430 | |
d195167d | 431 | int new_disks[1]; /* new_raid_disks - old_raid_disks makedev number */ |
78b10e66 N |
432 | }; |
433 | ||
2d40f3a1 AK |
434 | struct imsm_update_general_migration_checkpoint { |
435 | enum imsm_update_type type; | |
436 | __u32 curr_migr_unit; | |
437 | }; | |
438 | ||
54c2c1ea DW |
439 | struct disk_info { |
440 | __u8 serial[MAX_RAID_SERIAL_LEN]; | |
441 | }; | |
442 | ||
8273f55e DW |
443 | struct imsm_update_create_array { |
444 | enum imsm_update_type type; | |
8273f55e | 445 | int dev_idx; |
6a3e913e | 446 | struct imsm_dev dev; |
8273f55e DW |
447 | }; |
448 | ||
33414a01 DW |
449 | struct imsm_update_kill_array { |
450 | enum imsm_update_type type; | |
451 | int dev_idx; | |
452 | }; | |
453 | ||
aa534678 DW |
454 | struct imsm_update_rename_array { |
455 | enum imsm_update_type type; | |
456 | __u8 name[MAX_RAID_SERIAL_LEN]; | |
457 | int dev_idx; | |
458 | }; | |
459 | ||
1a64be56 | 460 | struct imsm_update_add_remove_disk { |
43dad3d6 DW |
461 | enum imsm_update_type type; |
462 | }; | |
463 | ||
88654014 LM |
464 | |
465 | static const char *_sys_dev_type[] = { | |
466 | [SYS_DEV_UNKNOWN] = "Unknown", | |
467 | [SYS_DEV_SAS] = "SAS", | |
468 | [SYS_DEV_SATA] = "SATA" | |
469 | }; | |
470 | ||
471 | const char *get_sys_dev_type(enum sys_dev_type type) | |
472 | { | |
473 | if (type >= SYS_DEV_MAX) | |
474 | type = SYS_DEV_UNKNOWN; | |
475 | ||
476 | return _sys_dev_type[type]; | |
477 | } | |
478 | ||
479 | static struct intel_hba * alloc_intel_hba(struct sys_dev *device) | |
480 | { | |
481 | struct intel_hba *result = malloc(sizeof(*result)); | |
482 | if (result) { | |
483 | result->type = device->type; | |
484 | result->path = strdup(device->path); | |
485 | result->next = NULL; | |
486 | if (result->path && (result->pci_id = strrchr(result->path, '/')) != NULL) | |
487 | result->pci_id++; | |
488 | } | |
489 | return result; | |
490 | } | |
491 | ||
492 | static struct intel_hba * find_intel_hba(struct intel_hba *hba, struct sys_dev *device) | |
493 | { | |
494 | struct intel_hba *result=NULL; | |
495 | for (result = hba; result; result = result->next) { | |
496 | if (result->type == device->type && strcmp(result->path, device->path) == 0) | |
497 | break; | |
498 | } | |
499 | return result; | |
500 | } | |
501 | ||
b4cf4cba | 502 | static int attach_hba_to_super(struct intel_super *super, struct sys_dev *device) |
88654014 LM |
503 | { |
504 | struct intel_hba *hba; | |
505 | ||
506 | /* check if disk attached to Intel HBA */ | |
507 | hba = find_intel_hba(super->hba, device); | |
508 | if (hba != NULL) | |
509 | return 1; | |
510 | /* Check if HBA is already attached to super */ | |
511 | if (super->hba == NULL) { | |
512 | super->hba = alloc_intel_hba(device); | |
513 | return 1; | |
514 | } | |
515 | ||
516 | hba = super->hba; | |
517 | /* Intel metadata allows for all disks attached to the same type HBA. | |
518 | * Do not sypport odf HBA types mixing | |
519 | */ | |
520 | if (device->type != hba->type) | |
521 | return 2; | |
522 | ||
523 | while (hba->next) | |
524 | hba = hba->next; | |
525 | ||
526 | hba->next = alloc_intel_hba(device); | |
527 | return 1; | |
528 | } | |
529 | ||
530 | static struct sys_dev* find_disk_attached_hba(int fd, const char *devname) | |
531 | { | |
532 | struct sys_dev *list, *elem, *prev; | |
533 | char *disk_path; | |
534 | ||
535 | if ((list = find_intel_devices()) == NULL) | |
536 | return 0; | |
537 | ||
538 | if (fd < 0) | |
539 | disk_path = (char *) devname; | |
540 | else | |
541 | disk_path = diskfd_to_devpath(fd); | |
542 | ||
543 | if (!disk_path) { | |
544 | free_sys_dev(&list); | |
545 | return 0; | |
546 | } | |
547 | ||
548 | for (prev = NULL, elem = list; elem; prev = elem, elem = elem->next) { | |
549 | if (path_attached_to_hba(disk_path, elem->path)) { | |
550 | if (prev == NULL) | |
551 | list = list->next; | |
552 | else | |
553 | prev->next = elem->next; | |
554 | elem->next = NULL; | |
555 | if (disk_path != devname) | |
556 | free(disk_path); | |
557 | free_sys_dev(&list); | |
558 | return elem; | |
559 | } | |
560 | } | |
561 | if (disk_path != devname) | |
562 | free(disk_path); | |
563 | free_sys_dev(&list); | |
564 | ||
565 | return NULL; | |
566 | } | |
567 | ||
568 | ||
d424212e N |
569 | static int find_intel_hba_capability(int fd, struct intel_super *super, |
570 | char *devname); | |
f2f5c343 | 571 | |
cdddbdbc DW |
572 | static struct supertype *match_metadata_desc_imsm(char *arg) |
573 | { | |
574 | struct supertype *st; | |
575 | ||
576 | if (strcmp(arg, "imsm") != 0 && | |
577 | strcmp(arg, "default") != 0 | |
578 | ) | |
579 | return NULL; | |
580 | ||
581 | st = malloc(sizeof(*st)); | |
4e9d2186 AW |
582 | if (!st) |
583 | return NULL; | |
ef609477 | 584 | memset(st, 0, sizeof(*st)); |
d1d599ea | 585 | st->container_dev = NoMdDev; |
cdddbdbc DW |
586 | st->ss = &super_imsm; |
587 | st->max_devs = IMSM_MAX_DEVICES; | |
588 | st->minor_version = 0; | |
589 | st->sb = NULL; | |
590 | return st; | |
591 | } | |
592 | ||
0e600426 | 593 | #ifndef MDASSEMBLE |
cdddbdbc DW |
594 | static __u8 *get_imsm_version(struct imsm_super *mpb) |
595 | { | |
596 | return &mpb->sig[MPB_SIG_LEN]; | |
597 | } | |
9e2d750d | 598 | #endif |
cdddbdbc | 599 | |
949c47a0 DW |
600 | /* retrieve a disk directly from the anchor when the anchor is known to be |
601 | * up-to-date, currently only at load time | |
602 | */ | |
603 | static struct imsm_disk *__get_imsm_disk(struct imsm_super *mpb, __u8 index) | |
cdddbdbc | 604 | { |
949c47a0 | 605 | if (index >= mpb->num_disks) |
cdddbdbc DW |
606 | return NULL; |
607 | return &mpb->disk[index]; | |
608 | } | |
609 | ||
95d07a2c LM |
610 | /* retrieve the disk description based on a index of the disk |
611 | * in the sub-array | |
612 | */ | |
613 | static struct dl *get_imsm_dl_disk(struct intel_super *super, __u8 index) | |
949c47a0 | 614 | { |
b9f594fe DW |
615 | struct dl *d; |
616 | ||
617 | for (d = super->disks; d; d = d->next) | |
618 | if (d->index == index) | |
95d07a2c LM |
619 | return d; |
620 | ||
621 | return NULL; | |
622 | } | |
623 | /* retrieve a disk from the parsed metadata */ | |
624 | static struct imsm_disk *get_imsm_disk(struct intel_super *super, __u8 index) | |
625 | { | |
626 | struct dl *dl; | |
627 | ||
628 | dl = get_imsm_dl_disk(super, index); | |
629 | if (dl) | |
630 | return &dl->disk; | |
631 | ||
b9f594fe | 632 | return NULL; |
949c47a0 DW |
633 | } |
634 | ||
635 | /* generate a checksum directly from the anchor when the anchor is known to be | |
636 | * up-to-date, currently only at load or write_super after coalescing | |
637 | */ | |
638 | static __u32 __gen_imsm_checksum(struct imsm_super *mpb) | |
cdddbdbc DW |
639 | { |
640 | __u32 end = mpb->mpb_size / sizeof(end); | |
641 | __u32 *p = (__u32 *) mpb; | |
642 | __u32 sum = 0; | |
643 | ||
97f734fd N |
644 | while (end--) { |
645 | sum += __le32_to_cpu(*p); | |
646 | p++; | |
647 | } | |
cdddbdbc DW |
648 | |
649 | return sum - __le32_to_cpu(mpb->check_sum); | |
650 | } | |
651 | ||
a965f303 DW |
652 | static size_t sizeof_imsm_map(struct imsm_map *map) |
653 | { | |
654 | return sizeof(struct imsm_map) + sizeof(__u32) * (map->num_members - 1); | |
655 | } | |
656 | ||
657 | struct imsm_map *get_imsm_map(struct imsm_dev *dev, int second_map) | |
cdddbdbc | 658 | { |
5e7b0330 AK |
659 | /* A device can have 2 maps if it is in the middle of a migration. |
660 | * If second_map is: | |
661 | * 0 - we return the first map | |
662 | * 1 - we return the second map if it exists, else NULL | |
663 | * -1 - we return the second map if it exists, else the first | |
664 | */ | |
a965f303 DW |
665 | struct imsm_map *map = &dev->vol.map[0]; |
666 | ||
5e7b0330 | 667 | if (second_map == 1 && !dev->vol.migr_state) |
a965f303 | 668 | return NULL; |
5e7b0330 AK |
669 | else if (second_map == 1 || |
670 | (second_map < 0 && dev->vol.migr_state)) { | |
a965f303 DW |
671 | void *ptr = map; |
672 | ||
673 | return ptr + sizeof_imsm_map(map); | |
674 | } else | |
675 | return map; | |
5e7b0330 | 676 | |
a965f303 | 677 | } |
cdddbdbc | 678 | |
3393c6af DW |
679 | /* return the size of the device. |
680 | * migr_state increases the returned size if map[0] were to be duplicated | |
681 | */ | |
682 | static size_t sizeof_imsm_dev(struct imsm_dev *dev, int migr_state) | |
a965f303 DW |
683 | { |
684 | size_t size = sizeof(*dev) - sizeof(struct imsm_map) + | |
685 | sizeof_imsm_map(get_imsm_map(dev, 0)); | |
cdddbdbc DW |
686 | |
687 | /* migrating means an additional map */ | |
a965f303 DW |
688 | if (dev->vol.migr_state) |
689 | size += sizeof_imsm_map(get_imsm_map(dev, 1)); | |
3393c6af DW |
690 | else if (migr_state) |
691 | size += sizeof_imsm_map(get_imsm_map(dev, 0)); | |
cdddbdbc DW |
692 | |
693 | return size; | |
694 | } | |
695 | ||
54c2c1ea DW |
696 | #ifndef MDASSEMBLE |
697 | /* retrieve disk serial number list from a metadata update */ | |
698 | static struct disk_info *get_disk_info(struct imsm_update_create_array *update) | |
699 | { | |
700 | void *u = update; | |
701 | struct disk_info *inf; | |
702 | ||
703 | inf = u + sizeof(*update) - sizeof(struct imsm_dev) + | |
704 | sizeof_imsm_dev(&update->dev, 0); | |
705 | ||
706 | return inf; | |
707 | } | |
708 | #endif | |
709 | ||
949c47a0 | 710 | static struct imsm_dev *__get_imsm_dev(struct imsm_super *mpb, __u8 index) |
cdddbdbc DW |
711 | { |
712 | int offset; | |
713 | int i; | |
714 | void *_mpb = mpb; | |
715 | ||
949c47a0 | 716 | if (index >= mpb->num_raid_devs) |
cdddbdbc DW |
717 | return NULL; |
718 | ||
719 | /* devices start after all disks */ | |
720 | offset = ((void *) &mpb->disk[mpb->num_disks]) - _mpb; | |
721 | ||
722 | for (i = 0; i <= index; i++) | |
723 | if (i == index) | |
724 | return _mpb + offset; | |
725 | else | |
3393c6af | 726 | offset += sizeof_imsm_dev(_mpb + offset, 0); |
cdddbdbc DW |
727 | |
728 | return NULL; | |
729 | } | |
730 | ||
949c47a0 DW |
731 | static struct imsm_dev *get_imsm_dev(struct intel_super *super, __u8 index) |
732 | { | |
ba2de7ba DW |
733 | struct intel_dev *dv; |
734 | ||
949c47a0 DW |
735 | if (index >= super->anchor->num_raid_devs) |
736 | return NULL; | |
ba2de7ba DW |
737 | for (dv = super->devlist; dv; dv = dv->next) |
738 | if (dv->index == index) | |
739 | return dv->dev; | |
740 | return NULL; | |
949c47a0 DW |
741 | } |
742 | ||
98130f40 AK |
743 | /* |
744 | * for second_map: | |
745 | * == 0 get first map | |
746 | * == 1 get second map | |
747 | * == -1 than get map according to the current migr_state | |
748 | */ | |
749 | static __u32 get_imsm_ord_tbl_ent(struct imsm_dev *dev, | |
750 | int slot, | |
751 | int second_map) | |
7eef0453 DW |
752 | { |
753 | struct imsm_map *map; | |
754 | ||
5e7b0330 | 755 | map = get_imsm_map(dev, second_map); |
7eef0453 | 756 | |
ff077194 DW |
757 | /* top byte identifies disk under rebuild */ |
758 | return __le32_to_cpu(map->disk_ord_tbl[slot]); | |
759 | } | |
760 | ||
761 | #define ord_to_idx(ord) (((ord) << 8) >> 8) | |
98130f40 | 762 | static __u32 get_imsm_disk_idx(struct imsm_dev *dev, int slot, int second_map) |
ff077194 | 763 | { |
98130f40 | 764 | __u32 ord = get_imsm_ord_tbl_ent(dev, slot, second_map); |
ff077194 DW |
765 | |
766 | return ord_to_idx(ord); | |
7eef0453 DW |
767 | } |
768 | ||
be73972f DW |
769 | static void set_imsm_ord_tbl_ent(struct imsm_map *map, int slot, __u32 ord) |
770 | { | |
771 | map->disk_ord_tbl[slot] = __cpu_to_le32(ord); | |
772 | } | |
773 | ||
f21e18ca | 774 | static int get_imsm_disk_slot(struct imsm_map *map, unsigned idx) |
620b1713 DW |
775 | { |
776 | int slot; | |
777 | __u32 ord; | |
778 | ||
779 | for (slot = 0; slot < map->num_members; slot++) { | |
780 | ord = __le32_to_cpu(map->disk_ord_tbl[slot]); | |
781 | if (ord_to_idx(ord) == idx) | |
782 | return slot; | |
783 | } | |
784 | ||
785 | return -1; | |
786 | } | |
787 | ||
cdddbdbc DW |
788 | static int get_imsm_raid_level(struct imsm_map *map) |
789 | { | |
790 | if (map->raid_level == 1) { | |
791 | if (map->num_members == 2) | |
792 | return 1; | |
793 | else | |
794 | return 10; | |
795 | } | |
796 | ||
797 | return map->raid_level; | |
798 | } | |
799 | ||
c2c087e6 DW |
800 | static int cmp_extent(const void *av, const void *bv) |
801 | { | |
802 | const struct extent *a = av; | |
803 | const struct extent *b = bv; | |
804 | if (a->start < b->start) | |
805 | return -1; | |
806 | if (a->start > b->start) | |
807 | return 1; | |
808 | return 0; | |
809 | } | |
810 | ||
0dcecb2e | 811 | static int count_memberships(struct dl *dl, struct intel_super *super) |
c2c087e6 | 812 | { |
c2c087e6 | 813 | int memberships = 0; |
620b1713 | 814 | int i; |
c2c087e6 | 815 | |
949c47a0 DW |
816 | for (i = 0; i < super->anchor->num_raid_devs; i++) { |
817 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
a965f303 | 818 | struct imsm_map *map = get_imsm_map(dev, 0); |
c2c087e6 | 819 | |
620b1713 DW |
820 | if (get_imsm_disk_slot(map, dl->index) >= 0) |
821 | memberships++; | |
c2c087e6 | 822 | } |
0dcecb2e DW |
823 | |
824 | return memberships; | |
825 | } | |
826 | ||
827 | static struct extent *get_extents(struct intel_super *super, struct dl *dl) | |
828 | { | |
829 | /* find a list of used extents on the given physical device */ | |
830 | struct extent *rv, *e; | |
620b1713 | 831 | int i; |
0dcecb2e DW |
832 | int memberships = count_memberships(dl, super); |
833 | __u32 reservation = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
834 | ||
c2c087e6 DW |
835 | rv = malloc(sizeof(struct extent) * (memberships + 1)); |
836 | if (!rv) | |
837 | return NULL; | |
838 | e = rv; | |
839 | ||
949c47a0 DW |
840 | for (i = 0; i < super->anchor->num_raid_devs; i++) { |
841 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
a965f303 | 842 | struct imsm_map *map = get_imsm_map(dev, 0); |
c2c087e6 | 843 | |
620b1713 DW |
844 | if (get_imsm_disk_slot(map, dl->index) >= 0) { |
845 | e->start = __le32_to_cpu(map->pba_of_lba0); | |
846 | e->size = __le32_to_cpu(map->blocks_per_member); | |
847 | e++; | |
c2c087e6 DW |
848 | } |
849 | } | |
850 | qsort(rv, memberships, sizeof(*rv), cmp_extent); | |
851 | ||
14e8215b DW |
852 | /* determine the start of the metadata |
853 | * when no raid devices are defined use the default | |
854 | * ...otherwise allow the metadata to truncate the value | |
855 | * as is the case with older versions of imsm | |
856 | */ | |
857 | if (memberships) { | |
858 | struct extent *last = &rv[memberships - 1]; | |
859 | __u32 remainder; | |
860 | ||
861 | remainder = __le32_to_cpu(dl->disk.total_blocks) - | |
862 | (last->start + last->size); | |
dda5855f DW |
863 | /* round down to 1k block to satisfy precision of the kernel |
864 | * 'size' interface | |
865 | */ | |
866 | remainder &= ~1UL; | |
867 | /* make sure remainder is still sane */ | |
f21e18ca | 868 | if (remainder < (unsigned)ROUND_UP(super->len, 512) >> 9) |
dda5855f | 869 | remainder = ROUND_UP(super->len, 512) >> 9; |
14e8215b DW |
870 | if (reservation > remainder) |
871 | reservation = remainder; | |
872 | } | |
873 | e->start = __le32_to_cpu(dl->disk.total_blocks) - reservation; | |
c2c087e6 DW |
874 | e->size = 0; |
875 | return rv; | |
876 | } | |
877 | ||
14e8215b DW |
878 | /* try to determine how much space is reserved for metadata from |
879 | * the last get_extents() entry, otherwise fallback to the | |
880 | * default | |
881 | */ | |
882 | static __u32 imsm_reserved_sectors(struct intel_super *super, struct dl *dl) | |
883 | { | |
884 | struct extent *e; | |
885 | int i; | |
886 | __u32 rv; | |
887 | ||
888 | /* for spares just return a minimal reservation which will grow | |
889 | * once the spare is picked up by an array | |
890 | */ | |
891 | if (dl->index == -1) | |
892 | return MPB_SECTOR_CNT; | |
893 | ||
894 | e = get_extents(super, dl); | |
895 | if (!e) | |
896 | return MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
897 | ||
898 | /* scroll to last entry */ | |
899 | for (i = 0; e[i].size; i++) | |
900 | continue; | |
901 | ||
902 | rv = __le32_to_cpu(dl->disk.total_blocks) - e[i].start; | |
903 | ||
904 | free(e); | |
905 | ||
906 | return rv; | |
907 | } | |
908 | ||
25ed7e59 DW |
909 | static int is_spare(struct imsm_disk *disk) |
910 | { | |
911 | return (disk->status & SPARE_DISK) == SPARE_DISK; | |
912 | } | |
913 | ||
914 | static int is_configured(struct imsm_disk *disk) | |
915 | { | |
916 | return (disk->status & CONFIGURED_DISK) == CONFIGURED_DISK; | |
917 | } | |
918 | ||
919 | static int is_failed(struct imsm_disk *disk) | |
920 | { | |
921 | return (disk->status & FAILED_DISK) == FAILED_DISK; | |
922 | } | |
923 | ||
80e7f8c3 AC |
924 | /* Return minimum size of a spare that can be used in this array*/ |
925 | static unsigned long long min_acceptable_spare_size_imsm(struct supertype *st) | |
926 | { | |
927 | struct intel_super *super = st->sb; | |
928 | struct dl *dl; | |
929 | struct extent *e; | |
930 | int i; | |
931 | unsigned long long rv = 0; | |
932 | ||
933 | if (!super) | |
934 | return rv; | |
935 | /* find first active disk in array */ | |
936 | dl = super->disks; | |
937 | while (dl && (is_failed(&dl->disk) || dl->index == -1)) | |
938 | dl = dl->next; | |
939 | if (!dl) | |
940 | return rv; | |
941 | /* find last lba used by subarrays */ | |
942 | e = get_extents(super, dl); | |
943 | if (!e) | |
944 | return rv; | |
945 | for (i = 0; e[i].size; i++) | |
946 | continue; | |
947 | if (i > 0) | |
948 | rv = e[i-1].start + e[i-1].size; | |
949 | free(e); | |
950 | /* add the amount of space needed for metadata */ | |
951 | rv = rv + MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
952 | return rv * 512; | |
953 | } | |
954 | ||
1799c9e8 | 955 | #ifndef MDASSEMBLE |
c47b0ff6 AK |
956 | static __u64 blocks_per_migr_unit(struct intel_super *super, |
957 | struct imsm_dev *dev); | |
1e5c6983 | 958 | |
c47b0ff6 AK |
959 | static void print_imsm_dev(struct intel_super *super, |
960 | struct imsm_dev *dev, | |
961 | char *uuid, | |
962 | int disk_idx) | |
cdddbdbc DW |
963 | { |
964 | __u64 sz; | |
0d80bb2f | 965 | int slot, i; |
a965f303 | 966 | struct imsm_map *map = get_imsm_map(dev, 0); |
dd8bcb3b | 967 | struct imsm_map *map2 = get_imsm_map(dev, 1); |
b10b37b8 | 968 | __u32 ord; |
cdddbdbc DW |
969 | |
970 | printf("\n"); | |
1e7bc0ed | 971 | printf("[%.16s]:\n", dev->volume); |
44470971 | 972 | printf(" UUID : %s\n", uuid); |
dd8bcb3b AK |
973 | printf(" RAID Level : %d", get_imsm_raid_level(map)); |
974 | if (map2) | |
975 | printf(" <-- %d", get_imsm_raid_level(map2)); | |
976 | printf("\n"); | |
977 | printf(" Members : %d", map->num_members); | |
978 | if (map2) | |
979 | printf(" <-- %d", map2->num_members); | |
980 | printf("\n"); | |
0d80bb2f DW |
981 | printf(" Slots : ["); |
982 | for (i = 0; i < map->num_members; i++) { | |
dd8bcb3b | 983 | ord = get_imsm_ord_tbl_ent(dev, i, 0); |
0d80bb2f DW |
984 | printf("%s", ord & IMSM_ORD_REBUILD ? "_" : "U"); |
985 | } | |
dd8bcb3b AK |
986 | printf("]"); |
987 | if (map2) { | |
988 | printf(" <-- ["); | |
989 | for (i = 0; i < map2->num_members; i++) { | |
990 | ord = get_imsm_ord_tbl_ent(dev, i, 1); | |
991 | printf("%s", ord & IMSM_ORD_REBUILD ? "_" : "U"); | |
992 | } | |
993 | printf("]"); | |
994 | } | |
995 | printf("\n"); | |
7095bccb AK |
996 | printf(" Failed disk : "); |
997 | if (map->failed_disk_num == 0xff) | |
998 | printf("none"); | |
999 | else | |
1000 | printf("%i", map->failed_disk_num); | |
1001 | printf("\n"); | |
620b1713 DW |
1002 | slot = get_imsm_disk_slot(map, disk_idx); |
1003 | if (slot >= 0) { | |
98130f40 | 1004 | ord = get_imsm_ord_tbl_ent(dev, slot, -1); |
b10b37b8 DW |
1005 | printf(" This Slot : %d%s\n", slot, |
1006 | ord & IMSM_ORD_REBUILD ? " (out-of-sync)" : ""); | |
1007 | } else | |
cdddbdbc DW |
1008 | printf(" This Slot : ?\n"); |
1009 | sz = __le32_to_cpu(dev->size_high); | |
1010 | sz <<= 32; | |
1011 | sz += __le32_to_cpu(dev->size_low); | |
1012 | printf(" Array Size : %llu%s\n", (unsigned long long)sz, | |
1013 | human_size(sz * 512)); | |
1014 | sz = __le32_to_cpu(map->blocks_per_member); | |
1015 | printf(" Per Dev Size : %llu%s\n", (unsigned long long)sz, | |
1016 | human_size(sz * 512)); | |
1017 | printf(" Sector Offset : %u\n", | |
1018 | __le32_to_cpu(map->pba_of_lba0)); | |
1019 | printf(" Num Stripes : %u\n", | |
1020 | __le32_to_cpu(map->num_data_stripes)); | |
dd8bcb3b | 1021 | printf(" Chunk Size : %u KiB", |
cdddbdbc | 1022 | __le16_to_cpu(map->blocks_per_strip) / 2); |
dd8bcb3b AK |
1023 | if (map2) |
1024 | printf(" <-- %u KiB", | |
1025 | __le16_to_cpu(map2->blocks_per_strip) / 2); | |
1026 | printf("\n"); | |
cdddbdbc | 1027 | printf(" Reserved : %d\n", __le32_to_cpu(dev->reserved_blocks)); |
8655a7b1 | 1028 | printf(" Migrate State : "); |
1484e727 DW |
1029 | if (dev->vol.migr_state) { |
1030 | if (migr_type(dev) == MIGR_INIT) | |
8655a7b1 | 1031 | printf("initialize\n"); |
1484e727 | 1032 | else if (migr_type(dev) == MIGR_REBUILD) |
8655a7b1 | 1033 | printf("rebuild\n"); |
1484e727 | 1034 | else if (migr_type(dev) == MIGR_VERIFY) |
8655a7b1 | 1035 | printf("check\n"); |
1484e727 | 1036 | else if (migr_type(dev) == MIGR_GEN_MIGR) |
8655a7b1 | 1037 | printf("general migration\n"); |
1484e727 | 1038 | else if (migr_type(dev) == MIGR_STATE_CHANGE) |
8655a7b1 | 1039 | printf("state change\n"); |
1484e727 | 1040 | else if (migr_type(dev) == MIGR_REPAIR) |
8655a7b1 | 1041 | printf("repair\n"); |
1484e727 | 1042 | else |
8655a7b1 DW |
1043 | printf("<unknown:%d>\n", migr_type(dev)); |
1044 | } else | |
1045 | printf("idle\n"); | |
3393c6af DW |
1046 | printf(" Map State : %s", map_state_str[map->map_state]); |
1047 | if (dev->vol.migr_state) { | |
1048 | struct imsm_map *map = get_imsm_map(dev, 1); | |
1e5c6983 | 1049 | |
b10b37b8 | 1050 | printf(" <-- %s", map_state_str[map->map_state]); |
1e5c6983 DW |
1051 | printf("\n Checkpoint : %u (%llu)", |
1052 | __le32_to_cpu(dev->vol.curr_migr_unit), | |
c47b0ff6 | 1053 | (unsigned long long)blocks_per_migr_unit(super, dev)); |
3393c6af DW |
1054 | } |
1055 | printf("\n"); | |
cdddbdbc | 1056 | printf(" Dirty State : %s\n", dev->vol.dirty ? "dirty" : "clean"); |
cdddbdbc DW |
1057 | } |
1058 | ||
14e8215b | 1059 | static void print_imsm_disk(struct imsm_super *mpb, int index, __u32 reserved) |
cdddbdbc | 1060 | { |
949c47a0 | 1061 | struct imsm_disk *disk = __get_imsm_disk(mpb, index); |
1f24f035 | 1062 | char str[MAX_RAID_SERIAL_LEN + 1]; |
cdddbdbc DW |
1063 | __u64 sz; |
1064 | ||
d362da3d | 1065 | if (index < 0 || !disk) |
e9d82038 DW |
1066 | return; |
1067 | ||
cdddbdbc | 1068 | printf("\n"); |
1f24f035 | 1069 | snprintf(str, MAX_RAID_SERIAL_LEN + 1, "%s", disk->serial); |
cdddbdbc | 1070 | printf(" Disk%02d Serial : %s\n", index, str); |
25ed7e59 DW |
1071 | printf(" State :%s%s%s\n", is_spare(disk) ? " spare" : "", |
1072 | is_configured(disk) ? " active" : "", | |
1073 | is_failed(disk) ? " failed" : ""); | |
cdddbdbc | 1074 | printf(" Id : %08x\n", __le32_to_cpu(disk->scsi_id)); |
14e8215b | 1075 | sz = __le32_to_cpu(disk->total_blocks) - reserved; |
cdddbdbc DW |
1076 | printf(" Usable Size : %llu%s\n", (unsigned long long)sz, |
1077 | human_size(sz * 512)); | |
1078 | } | |
1079 | ||
520e69e2 AK |
1080 | static int is_gen_migration(struct imsm_dev *dev); |
1081 | ||
1082 | void examine_migr_rec_imsm(struct intel_super *super) | |
1083 | { | |
1084 | struct migr_record *migr_rec = super->migr_rec; | |
1085 | struct imsm_super *mpb = super->anchor; | |
1086 | int i; | |
1087 | ||
1088 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
1089 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
1090 | if (is_gen_migration(dev) == 0) | |
1091 | continue; | |
1092 | ||
1093 | printf("\nMigration Record Information:"); | |
1094 | if (super->disks->index > 1) { | |
1095 | printf(" Empty\n "); | |
1096 | printf("Examine one of first two disks in array\n"); | |
1097 | break; | |
1098 | } | |
1099 | printf("\n Status : "); | |
1100 | if (__le32_to_cpu(migr_rec->rec_status) == UNIT_SRC_NORMAL) | |
1101 | printf("Normal\n"); | |
1102 | else | |
1103 | printf("Contains Data\n"); | |
1104 | printf(" Current Unit : %u\n", | |
1105 | __le32_to_cpu(migr_rec->curr_migr_unit)); | |
1106 | printf(" Family : %u\n", | |
1107 | __le32_to_cpu(migr_rec->family_num)); | |
1108 | printf(" Ascending : %u\n", | |
1109 | __le32_to_cpu(migr_rec->ascending_migr)); | |
1110 | printf(" Blocks Per Unit : %u\n", | |
1111 | __le32_to_cpu(migr_rec->blocks_per_unit)); | |
1112 | printf(" Dest. Depth Per Unit : %u\n", | |
1113 | __le32_to_cpu(migr_rec->dest_depth_per_unit)); | |
1114 | printf(" Checkpoint Area pba : %u\n", | |
1115 | __le32_to_cpu(migr_rec->ckpt_area_pba)); | |
1116 | printf(" First member lba : %u\n", | |
1117 | __le32_to_cpu(migr_rec->dest_1st_member_lba)); | |
1118 | printf(" Total Number of Units : %u\n", | |
1119 | __le32_to_cpu(migr_rec->num_migr_units)); | |
1120 | printf(" Size of volume : %u\n", | |
1121 | __le32_to_cpu(migr_rec->post_migr_vol_cap)); | |
1122 | printf(" Expansion space for LBA64 : %u\n", | |
1123 | __le32_to_cpu(migr_rec->post_migr_vol_cap_hi)); | |
1124 | printf(" Record was read from : %u\n", | |
1125 | __le32_to_cpu(migr_rec->ckpt_read_disk_num)); | |
1126 | ||
1127 | break; | |
1128 | } | |
1129 | } | |
9e2d750d | 1130 | #endif /* MDASSEMBLE */ |
19482bcc AK |
1131 | /******************************************************************************* |
1132 | * function: imsm_check_attributes | |
1133 | * Description: Function checks if features represented by attributes flags | |
1134 | * are supported by mdadm. | |
1135 | * Parameters: | |
1136 | * attributes - Attributes read from metadata | |
1137 | * Returns: | |
1138 | * 0 - passed attributes contains unsupported features flags | |
1139 | * 1 - all features are supported | |
1140 | ******************************************************************************/ | |
1141 | static int imsm_check_attributes(__u32 attributes) | |
1142 | { | |
1143 | int ret_val = 1; | |
1144 | __u32 not_supported = (MPB_ATTRIB_SUPPORTED)^0xffffffff; | |
1145 | ||
1146 | not_supported &= attributes; | |
1147 | if (not_supported) { | |
1148 | fprintf(stderr, Name "(IMSM): Unsupported attributes : %x\n", not_supported); | |
1149 | if (not_supported & MPB_ATTRIB_CHECKSUM_VERIFY) { | |
1150 | dprintf("\t\tMPB_ATTRIB_CHECKSUM_VERIFY \n"); | |
1151 | not_supported ^= MPB_ATTRIB_CHECKSUM_VERIFY; | |
1152 | } | |
1153 | if (not_supported & MPB_ATTRIB_2TB) { | |
1154 | dprintf("\t\tMPB_ATTRIB_2TB\n"); | |
1155 | not_supported ^= MPB_ATTRIB_2TB; | |
1156 | } | |
1157 | if (not_supported & MPB_ATTRIB_RAID0) { | |
1158 | dprintf("\t\tMPB_ATTRIB_RAID0\n"); | |
1159 | not_supported ^= MPB_ATTRIB_RAID0; | |
1160 | } | |
1161 | if (not_supported & MPB_ATTRIB_RAID1) { | |
1162 | dprintf("\t\tMPB_ATTRIB_RAID1\n"); | |
1163 | not_supported ^= MPB_ATTRIB_RAID1; | |
1164 | } | |
1165 | if (not_supported & MPB_ATTRIB_RAID10) { | |
1166 | dprintf("\t\tMPB_ATTRIB_RAID10\n"); | |
1167 | not_supported ^= MPB_ATTRIB_RAID10; | |
1168 | } | |
1169 | if (not_supported & MPB_ATTRIB_RAID1E) { | |
1170 | dprintf("\t\tMPB_ATTRIB_RAID1E\n"); | |
1171 | not_supported ^= MPB_ATTRIB_RAID1E; | |
1172 | } | |
1173 | if (not_supported & MPB_ATTRIB_RAID5) { | |
1174 | dprintf("\t\tMPB_ATTRIB_RAID5\n"); | |
1175 | not_supported ^= MPB_ATTRIB_RAID5; | |
1176 | } | |
1177 | if (not_supported & MPB_ATTRIB_RAIDCNG) { | |
1178 | dprintf("\t\tMPB_ATTRIB_RAIDCNG\n"); | |
1179 | not_supported ^= MPB_ATTRIB_RAIDCNG; | |
1180 | } | |
1181 | if (not_supported & MPB_ATTRIB_BBM) { | |
1182 | dprintf("\t\tMPB_ATTRIB_BBM\n"); | |
1183 | not_supported ^= MPB_ATTRIB_BBM; | |
1184 | } | |
1185 | if (not_supported & MPB_ATTRIB_CHECKSUM_VERIFY) { | |
1186 | dprintf("\t\tMPB_ATTRIB_CHECKSUM_VERIFY (== MPB_ATTRIB_LEGACY)\n"); | |
1187 | not_supported ^= MPB_ATTRIB_CHECKSUM_VERIFY; | |
1188 | } | |
1189 | if (not_supported & MPB_ATTRIB_EXP_STRIPE_SIZE) { | |
1190 | dprintf("\t\tMPB_ATTRIB_EXP_STRIP_SIZE\n"); | |
1191 | not_supported ^= MPB_ATTRIB_EXP_STRIPE_SIZE; | |
1192 | } | |
1193 | if (not_supported & MPB_ATTRIB_2TB_DISK) { | |
1194 | dprintf("\t\tMPB_ATTRIB_2TB_DISK\n"); | |
1195 | not_supported ^= MPB_ATTRIB_2TB_DISK; | |
1196 | } | |
1197 | if (not_supported & MPB_ATTRIB_NEVER_USE2) { | |
1198 | dprintf("\t\tMPB_ATTRIB_NEVER_USE2\n"); | |
1199 | not_supported ^= MPB_ATTRIB_NEVER_USE2; | |
1200 | } | |
1201 | if (not_supported & MPB_ATTRIB_NEVER_USE) { | |
1202 | dprintf("\t\tMPB_ATTRIB_NEVER_USE\n"); | |
1203 | not_supported ^= MPB_ATTRIB_NEVER_USE; | |
1204 | } | |
1205 | ||
1206 | if (not_supported) | |
1207 | dprintf(Name "(IMSM): Unknown attributes : %x\n", not_supported); | |
1208 | ||
1209 | ret_val = 0; | |
1210 | } | |
1211 | ||
1212 | return ret_val; | |
1213 | } | |
1214 | ||
9e2d750d | 1215 | #ifndef MDASSEMBLE |
a5d85af7 | 1216 | static void getinfo_super_imsm(struct supertype *st, struct mdinfo *info, char *map); |
44470971 | 1217 | |
cdddbdbc DW |
1218 | static void examine_super_imsm(struct supertype *st, char *homehost) |
1219 | { | |
1220 | struct intel_super *super = st->sb; | |
949c47a0 | 1221 | struct imsm_super *mpb = super->anchor; |
cdddbdbc DW |
1222 | char str[MAX_SIGNATURE_LENGTH]; |
1223 | int i; | |
27fd6274 DW |
1224 | struct mdinfo info; |
1225 | char nbuf[64]; | |
cdddbdbc | 1226 | __u32 sum; |
14e8215b | 1227 | __u32 reserved = imsm_reserved_sectors(super, super->disks); |
94827db3 | 1228 | struct dl *dl; |
27fd6274 | 1229 | |
cdddbdbc DW |
1230 | snprintf(str, MPB_SIG_LEN, "%s", mpb->sig); |
1231 | printf(" Magic : %s\n", str); | |
1232 | snprintf(str, strlen(MPB_VERSION_RAID0), "%s", get_imsm_version(mpb)); | |
1233 | printf(" Version : %s\n", get_imsm_version(mpb)); | |
148acb7b | 1234 | printf(" Orig Family : %08x\n", __le32_to_cpu(mpb->orig_family_num)); |
cdddbdbc DW |
1235 | printf(" Family : %08x\n", __le32_to_cpu(mpb->family_num)); |
1236 | printf(" Generation : %08x\n", __le32_to_cpu(mpb->generation_num)); | |
19482bcc AK |
1237 | printf(" Attributes : "); |
1238 | if (imsm_check_attributes(mpb->attributes)) | |
1239 | printf("All supported\n"); | |
1240 | else | |
1241 | printf("not supported\n"); | |
a5d85af7 | 1242 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1243 | fname_from_uuid(st, &info, nbuf, ':'); |
27fd6274 | 1244 | printf(" UUID : %s\n", nbuf + 5); |
cdddbdbc DW |
1245 | sum = __le32_to_cpu(mpb->check_sum); |
1246 | printf(" Checksum : %08x %s\n", sum, | |
949c47a0 | 1247 | __gen_imsm_checksum(mpb) == sum ? "correct" : "incorrect"); |
87eb16df | 1248 | printf(" MPB Sectors : %d\n", mpb_sectors(mpb)); |
cdddbdbc DW |
1249 | printf(" Disks : %d\n", mpb->num_disks); |
1250 | printf(" RAID Devices : %d\n", mpb->num_raid_devs); | |
14e8215b | 1251 | print_imsm_disk(mpb, super->disks->index, reserved); |
604b746f JD |
1252 | if (super->bbm_log) { |
1253 | struct bbm_log *log = super->bbm_log; | |
1254 | ||
1255 | printf("\n"); | |
1256 | printf("Bad Block Management Log:\n"); | |
1257 | printf(" Log Size : %d\n", __le32_to_cpu(mpb->bbm_log_size)); | |
1258 | printf(" Signature : %x\n", __le32_to_cpu(log->signature)); | |
1259 | printf(" Entry Count : %d\n", __le32_to_cpu(log->entry_count)); | |
1260 | printf(" Spare Blocks : %d\n", __le32_to_cpu(log->reserved_spare_block_count)); | |
13a3b65d N |
1261 | printf(" First Spare : %llx\n", |
1262 | (unsigned long long) __le64_to_cpu(log->first_spare_lba)); | |
604b746f | 1263 | } |
44470971 DW |
1264 | for (i = 0; i < mpb->num_raid_devs; i++) { |
1265 | struct mdinfo info; | |
1266 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
1267 | ||
1268 | super->current_vol = i; | |
a5d85af7 | 1269 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1270 | fname_from_uuid(st, &info, nbuf, ':'); |
c47b0ff6 | 1271 | print_imsm_dev(super, dev, nbuf + 5, super->disks->index); |
44470971 | 1272 | } |
cdddbdbc DW |
1273 | for (i = 0; i < mpb->num_disks; i++) { |
1274 | if (i == super->disks->index) | |
1275 | continue; | |
14e8215b | 1276 | print_imsm_disk(mpb, i, reserved); |
cdddbdbc | 1277 | } |
94827db3 N |
1278 | for (dl = super->disks ; dl; dl = dl->next) { |
1279 | struct imsm_disk *disk; | |
1280 | char str[MAX_RAID_SERIAL_LEN + 1]; | |
1281 | __u64 sz; | |
1282 | ||
1283 | if (dl->index >= 0) | |
1284 | continue; | |
1285 | ||
1286 | disk = &dl->disk; | |
1287 | printf("\n"); | |
1288 | snprintf(str, MAX_RAID_SERIAL_LEN + 1, "%s", disk->serial); | |
1289 | printf(" Disk Serial : %s\n", str); | |
1290 | printf(" State :%s%s%s\n", is_spare(disk) ? " spare" : "", | |
1291 | is_configured(disk) ? " active" : "", | |
1292 | is_failed(disk) ? " failed" : ""); | |
1293 | printf(" Id : %08x\n", __le32_to_cpu(disk->scsi_id)); | |
1294 | sz = __le32_to_cpu(disk->total_blocks) - reserved; | |
1295 | printf(" Usable Size : %llu%s\n", (unsigned long long)sz, | |
1296 | human_size(sz * 512)); | |
1297 | } | |
520e69e2 AK |
1298 | |
1299 | examine_migr_rec_imsm(super); | |
cdddbdbc DW |
1300 | } |
1301 | ||
061f2c6a | 1302 | static void brief_examine_super_imsm(struct supertype *st, int verbose) |
cdddbdbc | 1303 | { |
27fd6274 | 1304 | /* We just write a generic IMSM ARRAY entry */ |
ff54de6e N |
1305 | struct mdinfo info; |
1306 | char nbuf[64]; | |
1e7bc0ed | 1307 | struct intel_super *super = st->sb; |
1e7bc0ed | 1308 | |
0d5a423f DW |
1309 | if (!super->anchor->num_raid_devs) { |
1310 | printf("ARRAY metadata=imsm\n"); | |
1e7bc0ed | 1311 | return; |
0d5a423f | 1312 | } |
ff54de6e | 1313 | |
a5d85af7 | 1314 | getinfo_super_imsm(st, &info, NULL); |
4737ae25 N |
1315 | fname_from_uuid(st, &info, nbuf, ':'); |
1316 | printf("ARRAY metadata=imsm UUID=%s\n", nbuf + 5); | |
1317 | } | |
1318 | ||
1319 | static void brief_examine_subarrays_imsm(struct supertype *st, int verbose) | |
1320 | { | |
1321 | /* We just write a generic IMSM ARRAY entry */ | |
1322 | struct mdinfo info; | |
1323 | char nbuf[64]; | |
1324 | char nbuf1[64]; | |
1325 | struct intel_super *super = st->sb; | |
1326 | int i; | |
1327 | ||
1328 | if (!super->anchor->num_raid_devs) | |
1329 | return; | |
1330 | ||
a5d85af7 | 1331 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1332 | fname_from_uuid(st, &info, nbuf, ':'); |
1e7bc0ed DW |
1333 | for (i = 0; i < super->anchor->num_raid_devs; i++) { |
1334 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
1335 | ||
1336 | super->current_vol = i; | |
a5d85af7 | 1337 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1338 | fname_from_uuid(st, &info, nbuf1, ':'); |
1124b3cf | 1339 | printf("ARRAY /dev/md/%.16s container=%s member=%d UUID=%s\n", |
cf8de691 | 1340 | dev->volume, nbuf + 5, i, nbuf1 + 5); |
1e7bc0ed | 1341 | } |
cdddbdbc DW |
1342 | } |
1343 | ||
9d84c8ea DW |
1344 | static void export_examine_super_imsm(struct supertype *st) |
1345 | { | |
1346 | struct intel_super *super = st->sb; | |
1347 | struct imsm_super *mpb = super->anchor; | |
1348 | struct mdinfo info; | |
1349 | char nbuf[64]; | |
1350 | ||
a5d85af7 | 1351 | getinfo_super_imsm(st, &info, NULL); |
9d84c8ea DW |
1352 | fname_from_uuid(st, &info, nbuf, ':'); |
1353 | printf("MD_METADATA=imsm\n"); | |
1354 | printf("MD_LEVEL=container\n"); | |
1355 | printf("MD_UUID=%s\n", nbuf+5); | |
1356 | printf("MD_DEVICES=%u\n", mpb->num_disks); | |
1357 | } | |
1358 | ||
cdddbdbc DW |
1359 | static void detail_super_imsm(struct supertype *st, char *homehost) |
1360 | { | |
3ebe00a1 DW |
1361 | struct mdinfo info; |
1362 | char nbuf[64]; | |
1363 | ||
a5d85af7 | 1364 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1365 | fname_from_uuid(st, &info, nbuf, ':'); |
3ebe00a1 | 1366 | printf("\n UUID : %s\n", nbuf + 5); |
cdddbdbc DW |
1367 | } |
1368 | ||
1369 | static void brief_detail_super_imsm(struct supertype *st) | |
1370 | { | |
ff54de6e N |
1371 | struct mdinfo info; |
1372 | char nbuf[64]; | |
a5d85af7 | 1373 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1374 | fname_from_uuid(st, &info, nbuf, ':'); |
ff54de6e | 1375 | printf(" UUID=%s", nbuf + 5); |
cdddbdbc | 1376 | } |
d665cc31 DW |
1377 | |
1378 | static int imsm_read_serial(int fd, char *devname, __u8 *serial); | |
1379 | static void fd2devname(int fd, char *name); | |
1380 | ||
120dc887 | 1381 | static int ahci_enumerate_ports(const char *hba_path, int port_count, int host_base, int verbose) |
d665cc31 | 1382 | { |
120dc887 LM |
1383 | /* dump an unsorted list of devices attached to AHCI Intel storage |
1384 | * controller, as well as non-connected ports | |
d665cc31 DW |
1385 | */ |
1386 | int hba_len = strlen(hba_path) + 1; | |
1387 | struct dirent *ent; | |
1388 | DIR *dir; | |
1389 | char *path = NULL; | |
1390 | int err = 0; | |
1391 | unsigned long port_mask = (1 << port_count) - 1; | |
1392 | ||
f21e18ca | 1393 | if (port_count > (int)sizeof(port_mask) * 8) { |
d665cc31 DW |
1394 | if (verbose) |
1395 | fprintf(stderr, Name ": port_count %d out of range\n", port_count); | |
1396 | return 2; | |
1397 | } | |
1398 | ||
1399 | /* scroll through /sys/dev/block looking for devices attached to | |
1400 | * this hba | |
1401 | */ | |
1402 | dir = opendir("/sys/dev/block"); | |
1403 | for (ent = dir ? readdir(dir) : NULL; ent; ent = readdir(dir)) { | |
1404 | int fd; | |
1405 | char model[64]; | |
1406 | char vendor[64]; | |
1407 | char buf[1024]; | |
1408 | int major, minor; | |
1409 | char *device; | |
1410 | char *c; | |
1411 | int port; | |
1412 | int type; | |
1413 | ||
1414 | if (sscanf(ent->d_name, "%d:%d", &major, &minor) != 2) | |
1415 | continue; | |
1416 | path = devt_to_devpath(makedev(major, minor)); | |
1417 | if (!path) | |
1418 | continue; | |
1419 | if (!path_attached_to_hba(path, hba_path)) { | |
1420 | free(path); | |
1421 | path = NULL; | |
1422 | continue; | |
1423 | } | |
1424 | ||
1425 | /* retrieve the scsi device type */ | |
1426 | if (asprintf(&device, "/sys/dev/block/%d:%d/device/xxxxxxx", major, minor) < 0) { | |
1427 | if (verbose) | |
1428 | fprintf(stderr, Name ": failed to allocate 'device'\n"); | |
1429 | err = 2; | |
1430 | break; | |
1431 | } | |
1432 | sprintf(device, "/sys/dev/block/%d:%d/device/type", major, minor); | |
1433 | if (load_sys(device, buf) != 0) { | |
1434 | if (verbose) | |
1435 | fprintf(stderr, Name ": failed to read device type for %s\n", | |
1436 | path); | |
1437 | err = 2; | |
1438 | free(device); | |
1439 | break; | |
1440 | } | |
1441 | type = strtoul(buf, NULL, 10); | |
1442 | ||
1443 | /* if it's not a disk print the vendor and model */ | |
1444 | if (!(type == 0 || type == 7 || type == 14)) { | |
1445 | vendor[0] = '\0'; | |
1446 | model[0] = '\0'; | |
1447 | sprintf(device, "/sys/dev/block/%d:%d/device/vendor", major, minor); | |
1448 | if (load_sys(device, buf) == 0) { | |
1449 | strncpy(vendor, buf, sizeof(vendor)); | |
1450 | vendor[sizeof(vendor) - 1] = '\0'; | |
1451 | c = (char *) &vendor[sizeof(vendor) - 1]; | |
1452 | while (isspace(*c) || *c == '\0') | |
1453 | *c-- = '\0'; | |
1454 | ||
1455 | } | |
1456 | sprintf(device, "/sys/dev/block/%d:%d/device/model", major, minor); | |
1457 | if (load_sys(device, buf) == 0) { | |
1458 | strncpy(model, buf, sizeof(model)); | |
1459 | model[sizeof(model) - 1] = '\0'; | |
1460 | c = (char *) &model[sizeof(model) - 1]; | |
1461 | while (isspace(*c) || *c == '\0') | |
1462 | *c-- = '\0'; | |
1463 | } | |
1464 | ||
1465 | if (vendor[0] && model[0]) | |
1466 | sprintf(buf, "%.64s %.64s", vendor, model); | |
1467 | else | |
1468 | switch (type) { /* numbers from hald/linux/device.c */ | |
1469 | case 1: sprintf(buf, "tape"); break; | |
1470 | case 2: sprintf(buf, "printer"); break; | |
1471 | case 3: sprintf(buf, "processor"); break; | |
1472 | case 4: | |
1473 | case 5: sprintf(buf, "cdrom"); break; | |
1474 | case 6: sprintf(buf, "scanner"); break; | |
1475 | case 8: sprintf(buf, "media_changer"); break; | |
1476 | case 9: sprintf(buf, "comm"); break; | |
1477 | case 12: sprintf(buf, "raid"); break; | |
1478 | default: sprintf(buf, "unknown"); | |
1479 | } | |
1480 | } else | |
1481 | buf[0] = '\0'; | |
1482 | free(device); | |
1483 | ||
1484 | /* chop device path to 'host%d' and calculate the port number */ | |
1485 | c = strchr(&path[hba_len], '/'); | |
4e5e717d AW |
1486 | if (!c) { |
1487 | if (verbose) | |
1488 | fprintf(stderr, Name ": %s - invalid path name\n", path + hba_len); | |
1489 | err = 2; | |
1490 | break; | |
1491 | } | |
d665cc31 DW |
1492 | *c = '\0'; |
1493 | if (sscanf(&path[hba_len], "host%d", &port) == 1) | |
1494 | port -= host_base; | |
1495 | else { | |
1496 | if (verbose) { | |
1497 | *c = '/'; /* repair the full string */ | |
1498 | fprintf(stderr, Name ": failed to determine port number for %s\n", | |
1499 | path); | |
1500 | } | |
1501 | err = 2; | |
1502 | break; | |
1503 | } | |
1504 | ||
1505 | /* mark this port as used */ | |
1506 | port_mask &= ~(1 << port); | |
1507 | ||
1508 | /* print out the device information */ | |
1509 | if (buf[0]) { | |
1510 | printf(" Port%d : - non-disk device (%s) -\n", port, buf); | |
1511 | continue; | |
1512 | } | |
1513 | ||
1514 | fd = dev_open(ent->d_name, O_RDONLY); | |
1515 | if (fd < 0) | |
1516 | printf(" Port%d : - disk info unavailable -\n", port); | |
1517 | else { | |
1518 | fd2devname(fd, buf); | |
1519 | printf(" Port%d : %s", port, buf); | |
1520 | if (imsm_read_serial(fd, NULL, (__u8 *) buf) == 0) | |
1521 | printf(" (%s)\n", buf); | |
1522 | else | |
1523 | printf("()\n"); | |
1524 | } | |
1525 | close(fd); | |
1526 | free(path); | |
1527 | path = NULL; | |
1528 | } | |
1529 | if (path) | |
1530 | free(path); | |
1531 | if (dir) | |
1532 | closedir(dir); | |
1533 | if (err == 0) { | |
1534 | int i; | |
1535 | ||
1536 | for (i = 0; i < port_count; i++) | |
1537 | if (port_mask & (1 << i)) | |
1538 | printf(" Port%d : - no device attached -\n", i); | |
1539 | } | |
1540 | ||
1541 | return err; | |
1542 | } | |
1543 | ||
120dc887 LM |
1544 | static void print_found_intel_controllers(struct sys_dev *elem) |
1545 | { | |
1546 | for (; elem; elem = elem->next) { | |
1547 | fprintf(stderr, Name ": found Intel(R) "); | |
1548 | if (elem->type == SYS_DEV_SATA) | |
1549 | fprintf(stderr, "SATA "); | |
155cbb4c LM |
1550 | else if (elem->type == SYS_DEV_SAS) |
1551 | fprintf(stderr, "SAS "); | |
120dc887 LM |
1552 | fprintf(stderr, "RAID controller"); |
1553 | if (elem->pci_id) | |
1554 | fprintf(stderr, " at %s", elem->pci_id); | |
1555 | fprintf(stderr, ".\n"); | |
1556 | } | |
1557 | fflush(stderr); | |
1558 | } | |
1559 | ||
120dc887 LM |
1560 | static int ahci_get_port_count(const char *hba_path, int *port_count) |
1561 | { | |
1562 | struct dirent *ent; | |
1563 | DIR *dir; | |
1564 | int host_base = -1; | |
1565 | ||
1566 | *port_count = 0; | |
1567 | if ((dir = opendir(hba_path)) == NULL) | |
1568 | return -1; | |
1569 | ||
1570 | for (ent = readdir(dir); ent; ent = readdir(dir)) { | |
1571 | int host; | |
1572 | ||
1573 | if (sscanf(ent->d_name, "host%d", &host) != 1) | |
1574 | continue; | |
1575 | if (*port_count == 0) | |
1576 | host_base = host; | |
1577 | else if (host < host_base) | |
1578 | host_base = host; | |
1579 | ||
1580 | if (host + 1 > *port_count + host_base) | |
1581 | *port_count = host + 1 - host_base; | |
1582 | } | |
1583 | closedir(dir); | |
1584 | return host_base; | |
1585 | } | |
1586 | ||
a891a3c2 LM |
1587 | static void print_imsm_capability(const struct imsm_orom *orom) |
1588 | { | |
1589 | printf(" Platform : Intel(R) Matrix Storage Manager\n"); | |
1590 | printf(" Version : %d.%d.%d.%d\n", orom->major_ver, orom->minor_ver, | |
1591 | orom->hotfix_ver, orom->build); | |
1592 | printf(" RAID Levels :%s%s%s%s%s\n", | |
1593 | imsm_orom_has_raid0(orom) ? " raid0" : "", | |
1594 | imsm_orom_has_raid1(orom) ? " raid1" : "", | |
1595 | imsm_orom_has_raid1e(orom) ? " raid1e" : "", | |
1596 | imsm_orom_has_raid10(orom) ? " raid10" : "", | |
1597 | imsm_orom_has_raid5(orom) ? " raid5" : ""); | |
1598 | printf(" Chunk Sizes :%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", | |
1599 | imsm_orom_has_chunk(orom, 2) ? " 2k" : "", | |
1600 | imsm_orom_has_chunk(orom, 4) ? " 4k" : "", | |
1601 | imsm_orom_has_chunk(orom, 8) ? " 8k" : "", | |
1602 | imsm_orom_has_chunk(orom, 16) ? " 16k" : "", | |
1603 | imsm_orom_has_chunk(orom, 32) ? " 32k" : "", | |
1604 | imsm_orom_has_chunk(orom, 64) ? " 64k" : "", | |
1605 | imsm_orom_has_chunk(orom, 128) ? " 128k" : "", | |
1606 | imsm_orom_has_chunk(orom, 256) ? " 256k" : "", | |
1607 | imsm_orom_has_chunk(orom, 512) ? " 512k" : "", | |
1608 | imsm_orom_has_chunk(orom, 1024*1) ? " 1M" : "", | |
1609 | imsm_orom_has_chunk(orom, 1024*2) ? " 2M" : "", | |
1610 | imsm_orom_has_chunk(orom, 1024*4) ? " 4M" : "", | |
1611 | imsm_orom_has_chunk(orom, 1024*8) ? " 8M" : "", | |
1612 | imsm_orom_has_chunk(orom, 1024*16) ? " 16M" : "", | |
1613 | imsm_orom_has_chunk(orom, 1024*32) ? " 32M" : "", | |
1614 | imsm_orom_has_chunk(orom, 1024*64) ? " 64M" : ""); | |
1615 | printf(" Max Disks : %d\n", orom->tds); | |
1616 | printf(" Max Volumes : %d\n", orom->vpa); | |
1617 | return; | |
1618 | } | |
1619 | ||
5615172f | 1620 | static int detail_platform_imsm(int verbose, int enumerate_only) |
d665cc31 DW |
1621 | { |
1622 | /* There are two components to imsm platform support, the ahci SATA | |
1623 | * controller and the option-rom. To find the SATA controller we | |
1624 | * simply look in /sys/bus/pci/drivers/ahci to see if an ahci | |
1625 | * controller with the Intel vendor id is present. This approach | |
1626 | * allows mdadm to leverage the kernel's ahci detection logic, with the | |
1627 | * caveat that if ahci.ko is not loaded mdadm will not be able to | |
1628 | * detect platform raid capabilities. The option-rom resides in a | |
1629 | * platform "Adapter ROM". We scan for its signature to retrieve the | |
1630 | * platform capabilities. If raid support is disabled in the BIOS the | |
1631 | * option-rom capability structure will not be available. | |
1632 | */ | |
1633 | const struct imsm_orom *orom; | |
1634 | struct sys_dev *list, *hba; | |
d665cc31 DW |
1635 | int host_base = 0; |
1636 | int port_count = 0; | |
120dc887 | 1637 | int result=0; |
d665cc31 | 1638 | |
5615172f | 1639 | if (enumerate_only) { |
a891a3c2 | 1640 | if (check_env("IMSM_NO_PLATFORM")) |
5615172f | 1641 | return 0; |
a891a3c2 LM |
1642 | list = find_intel_devices(); |
1643 | if (!list) | |
1644 | return 2; | |
1645 | for (hba = list; hba; hba = hba->next) { | |
1646 | orom = find_imsm_capability(hba->type); | |
1647 | if (!orom) { | |
1648 | result = 2; | |
1649 | break; | |
1650 | } | |
1651 | } | |
1652 | free_sys_dev(&list); | |
1653 | return result; | |
5615172f DW |
1654 | } |
1655 | ||
155cbb4c LM |
1656 | list = find_intel_devices(); |
1657 | if (!list) { | |
d665cc31 | 1658 | if (verbose) |
155cbb4c LM |
1659 | fprintf(stderr, Name ": no active Intel(R) RAID " |
1660 | "controller found.\n"); | |
d665cc31 DW |
1661 | free_sys_dev(&list); |
1662 | return 2; | |
1663 | } else if (verbose) | |
155cbb4c | 1664 | print_found_intel_controllers(list); |
d665cc31 | 1665 | |
a891a3c2 LM |
1666 | for (hba = list; hba; hba = hba->next) { |
1667 | orom = find_imsm_capability(hba->type); | |
1668 | if (!orom) | |
1669 | fprintf(stderr, Name ": imsm capabilities not found for controller: %s (type %s)\n", | |
1670 | hba->path, get_sys_dev_type(hba->type)); | |
1671 | else | |
1672 | print_imsm_capability(orom); | |
d665cc31 DW |
1673 | } |
1674 | ||
120dc887 LM |
1675 | for (hba = list; hba; hba = hba->next) { |
1676 | printf(" I/O Controller : %s (%s)\n", | |
1677 | hba->path, get_sys_dev_type(hba->type)); | |
d665cc31 | 1678 | |
120dc887 LM |
1679 | if (hba->type == SYS_DEV_SATA) { |
1680 | host_base = ahci_get_port_count(hba->path, &port_count); | |
1681 | if (ahci_enumerate_ports(hba->path, port_count, host_base, verbose)) { | |
1682 | if (verbose) | |
1683 | fprintf(stderr, Name ": failed to enumerate " | |
1684 | "ports on SATA controller at %s.", hba->pci_id); | |
1685 | result |= 2; | |
1686 | } | |
1687 | } | |
d665cc31 | 1688 | } |
155cbb4c | 1689 | |
120dc887 LM |
1690 | free_sys_dev(&list); |
1691 | return result; | |
d665cc31 | 1692 | } |
cdddbdbc DW |
1693 | #endif |
1694 | ||
1695 | static int match_home_imsm(struct supertype *st, char *homehost) | |
1696 | { | |
5115ca67 DW |
1697 | /* the imsm metadata format does not specify any host |
1698 | * identification information. We return -1 since we can never | |
1699 | * confirm nor deny whether a given array is "meant" for this | |
148acb7b | 1700 | * host. We rely on compare_super and the 'family_num' fields to |
5115ca67 DW |
1701 | * exclude member disks that do not belong, and we rely on |
1702 | * mdadm.conf to specify the arrays that should be assembled. | |
1703 | * Auto-assembly may still pick up "foreign" arrays. | |
1704 | */ | |
cdddbdbc | 1705 | |
9362c1c8 | 1706 | return -1; |
cdddbdbc DW |
1707 | } |
1708 | ||
1709 | static void uuid_from_super_imsm(struct supertype *st, int uuid[4]) | |
1710 | { | |
51006d85 N |
1711 | /* The uuid returned here is used for: |
1712 | * uuid to put into bitmap file (Create, Grow) | |
1713 | * uuid for backup header when saving critical section (Grow) | |
1714 | * comparing uuids when re-adding a device into an array | |
1715 | * In these cases the uuid required is that of the data-array, | |
1716 | * not the device-set. | |
1717 | * uuid to recognise same set when adding a missing device back | |
1718 | * to an array. This is a uuid for the device-set. | |
1719 | * | |
1720 | * For each of these we can make do with a truncated | |
1721 | * or hashed uuid rather than the original, as long as | |
1722 | * everyone agrees. | |
1723 | * In each case the uuid required is that of the data-array, | |
1724 | * not the device-set. | |
43dad3d6 | 1725 | */ |
51006d85 N |
1726 | /* imsm does not track uuid's so we synthesis one using sha1 on |
1727 | * - The signature (Which is constant for all imsm array, but no matter) | |
148acb7b | 1728 | * - the orig_family_num of the container |
51006d85 N |
1729 | * - the index number of the volume |
1730 | * - the 'serial' number of the volume. | |
1731 | * Hopefully these are all constant. | |
1732 | */ | |
1733 | struct intel_super *super = st->sb; | |
43dad3d6 | 1734 | |
51006d85 N |
1735 | char buf[20]; |
1736 | struct sha1_ctx ctx; | |
1737 | struct imsm_dev *dev = NULL; | |
148acb7b | 1738 | __u32 family_num; |
51006d85 | 1739 | |
148acb7b DW |
1740 | /* some mdadm versions failed to set ->orig_family_num, in which |
1741 | * case fall back to ->family_num. orig_family_num will be | |
1742 | * fixed up with the first metadata update. | |
1743 | */ | |
1744 | family_num = super->anchor->orig_family_num; | |
1745 | if (family_num == 0) | |
1746 | family_num = super->anchor->family_num; | |
51006d85 | 1747 | sha1_init_ctx(&ctx); |
92bd8f8d | 1748 | sha1_process_bytes(super->anchor->sig, MPB_SIG_LEN, &ctx); |
148acb7b | 1749 | sha1_process_bytes(&family_num, sizeof(__u32), &ctx); |
51006d85 N |
1750 | if (super->current_vol >= 0) |
1751 | dev = get_imsm_dev(super, super->current_vol); | |
1752 | if (dev) { | |
1753 | __u32 vol = super->current_vol; | |
1754 | sha1_process_bytes(&vol, sizeof(vol), &ctx); | |
1755 | sha1_process_bytes(dev->volume, MAX_RAID_SERIAL_LEN, &ctx); | |
1756 | } | |
1757 | sha1_finish_ctx(&ctx, buf); | |
1758 | memcpy(uuid, buf, 4*4); | |
cdddbdbc DW |
1759 | } |
1760 | ||
0d481d37 | 1761 | #if 0 |
4f5bc454 DW |
1762 | static void |
1763 | get_imsm_numerical_version(struct imsm_super *mpb, int *m, int *p) | |
cdddbdbc | 1764 | { |
cdddbdbc DW |
1765 | __u8 *v = get_imsm_version(mpb); |
1766 | __u8 *end = mpb->sig + MAX_SIGNATURE_LENGTH; | |
1767 | char major[] = { 0, 0, 0 }; | |
1768 | char minor[] = { 0 ,0, 0 }; | |
1769 | char patch[] = { 0, 0, 0 }; | |
1770 | char *ver_parse[] = { major, minor, patch }; | |
1771 | int i, j; | |
1772 | ||
1773 | i = j = 0; | |
1774 | while (*v != '\0' && v < end) { | |
1775 | if (*v != '.' && j < 2) | |
1776 | ver_parse[i][j++] = *v; | |
1777 | else { | |
1778 | i++; | |
1779 | j = 0; | |
1780 | } | |
1781 | v++; | |
1782 | } | |
1783 | ||
4f5bc454 DW |
1784 | *m = strtol(minor, NULL, 0); |
1785 | *p = strtol(patch, NULL, 0); | |
1786 | } | |
0d481d37 | 1787 | #endif |
4f5bc454 | 1788 | |
1e5c6983 DW |
1789 | static __u32 migr_strip_blocks_resync(struct imsm_dev *dev) |
1790 | { | |
1791 | /* migr_strip_size when repairing or initializing parity */ | |
1792 | struct imsm_map *map = get_imsm_map(dev, 0); | |
1793 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); | |
1794 | ||
1795 | switch (get_imsm_raid_level(map)) { | |
1796 | case 5: | |
1797 | case 10: | |
1798 | return chunk; | |
1799 | default: | |
1800 | return 128*1024 >> 9; | |
1801 | } | |
1802 | } | |
1803 | ||
1804 | static __u32 migr_strip_blocks_rebuild(struct imsm_dev *dev) | |
1805 | { | |
1806 | /* migr_strip_size when rebuilding a degraded disk, no idea why | |
1807 | * this is different than migr_strip_size_resync(), but it's good | |
1808 | * to be compatible | |
1809 | */ | |
1810 | struct imsm_map *map = get_imsm_map(dev, 1); | |
1811 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); | |
1812 | ||
1813 | switch (get_imsm_raid_level(map)) { | |
1814 | case 1: | |
1815 | case 10: | |
1816 | if (map->num_members % map->num_domains == 0) | |
1817 | return 128*1024 >> 9; | |
1818 | else | |
1819 | return chunk; | |
1820 | case 5: | |
1821 | return max((__u32) 64*1024 >> 9, chunk); | |
1822 | default: | |
1823 | return 128*1024 >> 9; | |
1824 | } | |
1825 | } | |
1826 | ||
1827 | static __u32 num_stripes_per_unit_resync(struct imsm_dev *dev) | |
1828 | { | |
1829 | struct imsm_map *lo = get_imsm_map(dev, 0); | |
1830 | struct imsm_map *hi = get_imsm_map(dev, 1); | |
1831 | __u32 lo_chunk = __le32_to_cpu(lo->blocks_per_strip); | |
1832 | __u32 hi_chunk = __le32_to_cpu(hi->blocks_per_strip); | |
1833 | ||
1834 | return max((__u32) 1, hi_chunk / lo_chunk); | |
1835 | } | |
1836 | ||
1837 | static __u32 num_stripes_per_unit_rebuild(struct imsm_dev *dev) | |
1838 | { | |
1839 | struct imsm_map *lo = get_imsm_map(dev, 0); | |
1840 | int level = get_imsm_raid_level(lo); | |
1841 | ||
1842 | if (level == 1 || level == 10) { | |
1843 | struct imsm_map *hi = get_imsm_map(dev, 1); | |
1844 | ||
1845 | return hi->num_domains; | |
1846 | } else | |
1847 | return num_stripes_per_unit_resync(dev); | |
1848 | } | |
1849 | ||
98130f40 | 1850 | static __u8 imsm_num_data_members(struct imsm_dev *dev, int second_map) |
1e5c6983 DW |
1851 | { |
1852 | /* named 'imsm_' because raid0, raid1 and raid10 | |
1853 | * counter-intuitively have the same number of data disks | |
1854 | */ | |
98130f40 | 1855 | struct imsm_map *map = get_imsm_map(dev, second_map); |
1e5c6983 DW |
1856 | |
1857 | switch (get_imsm_raid_level(map)) { | |
1858 | case 0: | |
1859 | case 1: | |
1860 | case 10: | |
1861 | return map->num_members; | |
1862 | case 5: | |
1863 | return map->num_members - 1; | |
1864 | default: | |
1865 | dprintf("%s: unsupported raid level\n", __func__); | |
1866 | return 0; | |
1867 | } | |
1868 | } | |
1869 | ||
1870 | static __u32 parity_segment_depth(struct imsm_dev *dev) | |
1871 | { | |
1872 | struct imsm_map *map = get_imsm_map(dev, 0); | |
1873 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); | |
1874 | ||
1875 | switch(get_imsm_raid_level(map)) { | |
1876 | case 1: | |
1877 | case 10: | |
1878 | return chunk * map->num_domains; | |
1879 | case 5: | |
1880 | return chunk * map->num_members; | |
1881 | default: | |
1882 | return chunk; | |
1883 | } | |
1884 | } | |
1885 | ||
1886 | static __u32 map_migr_block(struct imsm_dev *dev, __u32 block) | |
1887 | { | |
1888 | struct imsm_map *map = get_imsm_map(dev, 1); | |
1889 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); | |
1890 | __u32 strip = block / chunk; | |
1891 | ||
1892 | switch (get_imsm_raid_level(map)) { | |
1893 | case 1: | |
1894 | case 10: { | |
1895 | __u32 vol_strip = (strip * map->num_domains) + 1; | |
1896 | __u32 vol_stripe = vol_strip / map->num_members; | |
1897 | ||
1898 | return vol_stripe * chunk + block % chunk; | |
1899 | } case 5: { | |
1900 | __u32 stripe = strip / (map->num_members - 1); | |
1901 | ||
1902 | return stripe * chunk + block % chunk; | |
1903 | } | |
1904 | default: | |
1905 | return 0; | |
1906 | } | |
1907 | } | |
1908 | ||
c47b0ff6 AK |
1909 | static __u64 blocks_per_migr_unit(struct intel_super *super, |
1910 | struct imsm_dev *dev) | |
1e5c6983 DW |
1911 | { |
1912 | /* calculate the conversion factor between per member 'blocks' | |
1913 | * (md/{resync,rebuild}_start) and imsm migration units, return | |
1914 | * 0 for the 'not migrating' and 'unsupported migration' cases | |
1915 | */ | |
1916 | if (!dev->vol.migr_state) | |
1917 | return 0; | |
1918 | ||
1919 | switch (migr_type(dev)) { | |
c47b0ff6 AK |
1920 | case MIGR_GEN_MIGR: { |
1921 | struct migr_record *migr_rec = super->migr_rec; | |
1922 | return __le32_to_cpu(migr_rec->blocks_per_unit); | |
1923 | } | |
1e5c6983 DW |
1924 | case MIGR_VERIFY: |
1925 | case MIGR_REPAIR: | |
1926 | case MIGR_INIT: { | |
1927 | struct imsm_map *map = get_imsm_map(dev, 0); | |
1928 | __u32 stripes_per_unit; | |
1929 | __u32 blocks_per_unit; | |
1930 | __u32 parity_depth; | |
1931 | __u32 migr_chunk; | |
1932 | __u32 block_map; | |
1933 | __u32 block_rel; | |
1934 | __u32 segment; | |
1935 | __u32 stripe; | |
1936 | __u8 disks; | |
1937 | ||
1938 | /* yes, this is really the translation of migr_units to | |
1939 | * per-member blocks in the 'resync' case | |
1940 | */ | |
1941 | stripes_per_unit = num_stripes_per_unit_resync(dev); | |
1942 | migr_chunk = migr_strip_blocks_resync(dev); | |
98130f40 | 1943 | disks = imsm_num_data_members(dev, 0); |
1e5c6983 | 1944 | blocks_per_unit = stripes_per_unit * migr_chunk * disks; |
7b1ab482 | 1945 | stripe = __le16_to_cpu(map->blocks_per_strip) * disks; |
1e5c6983 DW |
1946 | segment = blocks_per_unit / stripe; |
1947 | block_rel = blocks_per_unit - segment * stripe; | |
1948 | parity_depth = parity_segment_depth(dev); | |
1949 | block_map = map_migr_block(dev, block_rel); | |
1950 | return block_map + parity_depth * segment; | |
1951 | } | |
1952 | case MIGR_REBUILD: { | |
1953 | __u32 stripes_per_unit; | |
1954 | __u32 migr_chunk; | |
1955 | ||
1956 | stripes_per_unit = num_stripes_per_unit_rebuild(dev); | |
1957 | migr_chunk = migr_strip_blocks_rebuild(dev); | |
1958 | return migr_chunk * stripes_per_unit; | |
1959 | } | |
1e5c6983 DW |
1960 | case MIGR_STATE_CHANGE: |
1961 | default: | |
1962 | return 0; | |
1963 | } | |
1964 | } | |
1965 | ||
c2c087e6 DW |
1966 | static int imsm_level_to_layout(int level) |
1967 | { | |
1968 | switch (level) { | |
1969 | case 0: | |
1970 | case 1: | |
1971 | return 0; | |
1972 | case 5: | |
1973 | case 6: | |
a380c027 | 1974 | return ALGORITHM_LEFT_ASYMMETRIC; |
c2c087e6 | 1975 | case 10: |
c92a2527 | 1976 | return 0x102; |
c2c087e6 | 1977 | } |
a18a888e | 1978 | return UnSet; |
c2c087e6 DW |
1979 | } |
1980 | ||
8e59f3d8 AK |
1981 | /******************************************************************************* |
1982 | * Function: read_imsm_migr_rec | |
1983 | * Description: Function reads imsm migration record from last sector of disk | |
1984 | * Parameters: | |
1985 | * fd : disk descriptor | |
1986 | * super : metadata info | |
1987 | * Returns: | |
1988 | * 0 : success, | |
1989 | * -1 : fail | |
1990 | ******************************************************************************/ | |
1991 | static int read_imsm_migr_rec(int fd, struct intel_super *super) | |
1992 | { | |
1993 | int ret_val = -1; | |
1994 | unsigned long long dsize; | |
1995 | ||
1996 | get_dev_size(fd, NULL, &dsize); | |
1997 | if (lseek64(fd, dsize - 512, SEEK_SET) < 0) { | |
1998 | fprintf(stderr, | |
1999 | Name ": Cannot seek to anchor block: %s\n", | |
2000 | strerror(errno)); | |
2001 | goto out; | |
2002 | } | |
2003 | if (read(fd, super->migr_rec_buf, 512) != 512) { | |
2004 | fprintf(stderr, | |
2005 | Name ": Cannot read migr record block: %s\n", | |
2006 | strerror(errno)); | |
2007 | goto out; | |
2008 | } | |
2009 | ret_val = 0; | |
2010 | ||
2011 | out: | |
2012 | return ret_val; | |
2013 | } | |
2014 | ||
2015 | /******************************************************************************* | |
2016 | * Function: load_imsm_migr_rec | |
2017 | * Description: Function reads imsm migration record (it is stored at the last | |
2018 | * sector of disk) | |
2019 | * Parameters: | |
2020 | * super : imsm internal array info | |
2021 | * info : general array info | |
2022 | * Returns: | |
2023 | * 0 : success | |
2024 | * -1 : fail | |
2025 | ******************************************************************************/ | |
2026 | static int load_imsm_migr_rec(struct intel_super *super, struct mdinfo *info) | |
2027 | { | |
2028 | struct mdinfo *sd; | |
2029 | struct dl *dl = NULL; | |
2030 | char nm[30]; | |
2031 | int retval = -1; | |
2032 | int fd = -1; | |
2033 | ||
2034 | if (info) { | |
2035 | for (sd = info->devs ; sd ; sd = sd->next) { | |
2036 | /* read only from one of the first two slots */ | |
2037 | if ((sd->disk.raid_disk > 1) || | |
2038 | (sd->disk.raid_disk < 0)) | |
2039 | continue; | |
2040 | sprintf(nm, "%d:%d", sd->disk.major, sd->disk.minor); | |
2041 | fd = dev_open(nm, O_RDONLY); | |
2042 | if (fd >= 0) | |
2043 | break; | |
2044 | } | |
2045 | } | |
2046 | if (fd < 0) { | |
2047 | for (dl = super->disks; dl; dl = dl->next) { | |
2048 | /* read only from one of the first two slots */ | |
2049 | if (dl->index > 1) | |
2050 | continue; | |
2051 | sprintf(nm, "%d:%d", dl->major, dl->minor); | |
2052 | fd = dev_open(nm, O_RDONLY); | |
2053 | if (fd >= 0) | |
2054 | break; | |
2055 | } | |
2056 | } | |
2057 | if (fd < 0) | |
2058 | goto out; | |
2059 | retval = read_imsm_migr_rec(fd, super); | |
2060 | ||
2061 | out: | |
2062 | if (fd >= 0) | |
2063 | close(fd); | |
2064 | return retval; | |
2065 | } | |
2066 | ||
9e2d750d | 2067 | #ifndef MDASSEMBLE |
c17608ea AK |
2068 | /******************************************************************************* |
2069 | * function: imsm_create_metadata_checkpoint_update | |
2070 | * Description: It creates update for checkpoint change. | |
2071 | * Parameters: | |
2072 | * super : imsm internal array info | |
2073 | * u : pointer to prepared update | |
2074 | * Returns: | |
2075 | * Uptate length. | |
2076 | * If length is equal to 0, input pointer u contains no update | |
2077 | ******************************************************************************/ | |
2078 | static int imsm_create_metadata_checkpoint_update( | |
2079 | struct intel_super *super, | |
2080 | struct imsm_update_general_migration_checkpoint **u) | |
2081 | { | |
2082 | ||
2083 | int update_memory_size = 0; | |
2084 | ||
2085 | dprintf("imsm_create_metadata_checkpoint_update(enter)\n"); | |
2086 | ||
2087 | if (u == NULL) | |
2088 | return 0; | |
2089 | *u = NULL; | |
2090 | ||
2091 | /* size of all update data without anchor */ | |
2092 | update_memory_size = | |
2093 | sizeof(struct imsm_update_general_migration_checkpoint); | |
2094 | ||
2095 | *u = calloc(1, update_memory_size); | |
2096 | if (*u == NULL) { | |
2097 | dprintf("error: cannot get memory for " | |
2098 | "imsm_create_metadata_checkpoint_update update\n"); | |
2099 | return 0; | |
2100 | } | |
2101 | (*u)->type = update_general_migration_checkpoint; | |
2102 | (*u)->curr_migr_unit = __le32_to_cpu(super->migr_rec->curr_migr_unit); | |
2103 | dprintf("imsm_create_metadata_checkpoint_update: prepared for %u\n", | |
2104 | (*u)->curr_migr_unit); | |
2105 | ||
2106 | return update_memory_size; | |
2107 | } | |
2108 | ||
2109 | ||
2110 | static void imsm_update_metadata_locally(struct supertype *st, | |
2111 | void *buf, int len); | |
2112 | ||
687629c2 AK |
2113 | /******************************************************************************* |
2114 | * Function: write_imsm_migr_rec | |
2115 | * Description: Function writes imsm migration record | |
2116 | * (at the last sector of disk) | |
2117 | * Parameters: | |
2118 | * super : imsm internal array info | |
2119 | * Returns: | |
2120 | * 0 : success | |
2121 | * -1 : if fail | |
2122 | ******************************************************************************/ | |
2123 | static int write_imsm_migr_rec(struct supertype *st) | |
2124 | { | |
2125 | struct intel_super *super = st->sb; | |
2126 | unsigned long long dsize; | |
2127 | char nm[30]; | |
2128 | int fd = -1; | |
2129 | int retval = -1; | |
2130 | struct dl *sd; | |
c17608ea AK |
2131 | int len; |
2132 | struct imsm_update_general_migration_checkpoint *u; | |
687629c2 AK |
2133 | |
2134 | for (sd = super->disks ; sd ; sd = sd->next) { | |
2135 | /* write to 2 first slots only */ | |
2136 | if ((sd->index < 0) || (sd->index > 1)) | |
2137 | continue; | |
2138 | sprintf(nm, "%d:%d", sd->major, sd->minor); | |
2139 | fd = dev_open(nm, O_RDWR); | |
2140 | if (fd < 0) | |
2141 | continue; | |
2142 | get_dev_size(fd, NULL, &dsize); | |
2143 | if (lseek64(fd, dsize - 512, SEEK_SET) < 0) { | |
2144 | fprintf(stderr, | |
2145 | Name ": Cannot seek to anchor block: %s\n", | |
2146 | strerror(errno)); | |
2147 | goto out; | |
2148 | } | |
2149 | if (write(fd, super->migr_rec_buf, 512) != 512) { | |
2150 | fprintf(stderr, | |
2151 | Name ": Cannot write migr record block: %s\n", | |
2152 | strerror(errno)); | |
2153 | goto out; | |
2154 | } | |
2155 | close(fd); | |
2156 | fd = -1; | |
2157 | } | |
c17608ea AK |
2158 | /* update checkpoint information in metadata */ |
2159 | len = imsm_create_metadata_checkpoint_update(super, &u); | |
2160 | ||
2161 | if (len <= 0) { | |
2162 | dprintf("imsm: Cannot prepare update\n"); | |
2163 | goto out; | |
2164 | } | |
2165 | /* update metadata locally */ | |
2166 | imsm_update_metadata_locally(st, u, len); | |
2167 | /* and possibly remotely */ | |
2168 | if (st->update_tail) { | |
2169 | append_metadata_update(st, u, len); | |
2170 | /* during reshape we do all work inside metadata handler | |
2171 | * manage_reshape(), so metadata update has to be triggered | |
2172 | * insida it | |
2173 | */ | |
2174 | flush_metadata_updates(st); | |
2175 | st->update_tail = &st->updates; | |
2176 | } else | |
2177 | free(u); | |
687629c2 AK |
2178 | |
2179 | retval = 0; | |
2180 | out: | |
2181 | if (fd >= 0) | |
2182 | close(fd); | |
2183 | return retval; | |
2184 | } | |
9e2d750d | 2185 | #endif /* MDASSEMBLE */ |
687629c2 | 2186 | |
a5d85af7 | 2187 | static void getinfo_super_imsm_volume(struct supertype *st, struct mdinfo *info, char *dmap) |
bf5a934a DW |
2188 | { |
2189 | struct intel_super *super = st->sb; | |
c47b0ff6 | 2190 | struct migr_record *migr_rec = super->migr_rec; |
949c47a0 | 2191 | struct imsm_dev *dev = get_imsm_dev(super, super->current_vol); |
a965f303 | 2192 | struct imsm_map *map = get_imsm_map(dev, 0); |
81ac8b4d | 2193 | struct imsm_map *prev_map = get_imsm_map(dev, 1); |
b335e593 | 2194 | struct imsm_map *map_to_analyse = map; |
efb30e7f | 2195 | struct dl *dl; |
e207da2f | 2196 | char *devname; |
139dae11 | 2197 | unsigned int component_size_alligment; |
a5d85af7 | 2198 | int map_disks = info->array.raid_disks; |
bf5a934a | 2199 | |
95eeceeb | 2200 | memset(info, 0, sizeof(*info)); |
b335e593 AK |
2201 | if (prev_map) |
2202 | map_to_analyse = prev_map; | |
2203 | ||
9894ec0d N |
2204 | dl = super->disks; |
2205 | ||
bf5a934a | 2206 | info->container_member = super->current_vol; |
cd0430a1 | 2207 | info->array.raid_disks = map->num_members; |
b335e593 | 2208 | info->array.level = get_imsm_raid_level(map_to_analyse); |
bf5a934a DW |
2209 | info->array.layout = imsm_level_to_layout(info->array.level); |
2210 | info->array.md_minor = -1; | |
2211 | info->array.ctime = 0; | |
2212 | info->array.utime = 0; | |
b335e593 AK |
2213 | info->array.chunk_size = |
2214 | __le16_to_cpu(map_to_analyse->blocks_per_strip) << 9; | |
301406c9 | 2215 | info->array.state = !dev->vol.dirty; |
da9b4a62 DW |
2216 | info->custom_array_size = __le32_to_cpu(dev->size_high); |
2217 | info->custom_array_size <<= 32; | |
2218 | info->custom_array_size |= __le32_to_cpu(dev->size_low); | |
3f83228a N |
2219 | if (prev_map && map->map_state == prev_map->map_state) { |
2220 | info->reshape_active = 1; | |
b335e593 AK |
2221 | info->new_level = get_imsm_raid_level(map); |
2222 | info->new_layout = imsm_level_to_layout(info->new_level); | |
2223 | info->new_chunk = __le16_to_cpu(map->blocks_per_strip) << 9; | |
3f83228a | 2224 | info->delta_disks = map->num_members - prev_map->num_members; |
493f5dd6 N |
2225 | if (info->delta_disks) { |
2226 | /* this needs to be applied to every array | |
2227 | * in the container. | |
2228 | */ | |
2229 | info->reshape_active = 2; | |
2230 | } | |
3f83228a N |
2231 | /* We shape information that we give to md might have to be |
2232 | * modify to cope with md's requirement for reshaping arrays. | |
2233 | * For example, when reshaping a RAID0, md requires it to be | |
2234 | * presented as a degraded RAID4. | |
2235 | * Also if a RAID0 is migrating to a RAID5 we need to specify | |
2236 | * the array as already being RAID5, but the 'before' layout | |
2237 | * is a RAID4-like layout. | |
2238 | */ | |
2239 | switch (info->array.level) { | |
2240 | case 0: | |
2241 | switch(info->new_level) { | |
2242 | case 0: | |
2243 | /* conversion is happening as RAID4 */ | |
2244 | info->array.level = 4; | |
2245 | info->array.raid_disks += 1; | |
2246 | break; | |
2247 | case 5: | |
2248 | /* conversion is happening as RAID5 */ | |
2249 | info->array.level = 5; | |
2250 | info->array.layout = ALGORITHM_PARITY_N; | |
3f83228a N |
2251 | info->delta_disks -= 1; |
2252 | break; | |
2253 | default: | |
2254 | /* FIXME error message */ | |
2255 | info->array.level = UnSet; | |
2256 | break; | |
2257 | } | |
2258 | break; | |
2259 | } | |
b335e593 AK |
2260 | } else { |
2261 | info->new_level = UnSet; | |
2262 | info->new_layout = UnSet; | |
2263 | info->new_chunk = info->array.chunk_size; | |
3f83228a | 2264 | info->delta_disks = 0; |
b335e593 | 2265 | } |
301406c9 DW |
2266 | info->disk.major = 0; |
2267 | info->disk.minor = 0; | |
efb30e7f DW |
2268 | if (dl) { |
2269 | info->disk.major = dl->major; | |
2270 | info->disk.minor = dl->minor; | |
2271 | } | |
bf5a934a | 2272 | |
b335e593 AK |
2273 | info->data_offset = __le32_to_cpu(map_to_analyse->pba_of_lba0); |
2274 | info->component_size = | |
2275 | __le32_to_cpu(map_to_analyse->blocks_per_member); | |
139dae11 AK |
2276 | |
2277 | /* check component size aligment | |
2278 | */ | |
2279 | component_size_alligment = | |
2280 | info->component_size % (info->array.chunk_size/512); | |
2281 | ||
2282 | if (component_size_alligment && | |
2283 | (info->array.level != 1) && (info->array.level != UnSet)) { | |
2284 | dprintf("imsm: reported component size alligned from %llu ", | |
2285 | info->component_size); | |
2286 | info->component_size -= component_size_alligment; | |
2287 | dprintf("to %llu (%i).\n", | |
2288 | info->component_size, component_size_alligment); | |
2289 | } | |
2290 | ||
301406c9 | 2291 | memset(info->uuid, 0, sizeof(info->uuid)); |
921d9e16 | 2292 | info->recovery_start = MaxSector; |
bf5a934a | 2293 | |
d2e6d5d6 | 2294 | info->reshape_progress = 0; |
b6796ce1 | 2295 | info->resync_start = MaxSector; |
b335e593 AK |
2296 | if (map_to_analyse->map_state == IMSM_T_STATE_UNINITIALIZED || |
2297 | dev->vol.dirty) { | |
301406c9 | 2298 | info->resync_start = 0; |
b6796ce1 AK |
2299 | } |
2300 | if (dev->vol.migr_state) { | |
1e5c6983 DW |
2301 | switch (migr_type(dev)) { |
2302 | case MIGR_REPAIR: | |
2303 | case MIGR_INIT: { | |
c47b0ff6 AK |
2304 | __u64 blocks_per_unit = blocks_per_migr_unit(super, |
2305 | dev); | |
1e5c6983 DW |
2306 | __u64 units = __le32_to_cpu(dev->vol.curr_migr_unit); |
2307 | ||
2308 | info->resync_start = blocks_per_unit * units; | |
2309 | break; | |
2310 | } | |
d2e6d5d6 | 2311 | case MIGR_GEN_MIGR: { |
c47b0ff6 AK |
2312 | __u64 blocks_per_unit = blocks_per_migr_unit(super, |
2313 | dev); | |
2314 | __u64 units = __le32_to_cpu(migr_rec->curr_migr_unit); | |
04fa9523 AK |
2315 | unsigned long long array_blocks; |
2316 | int used_disks; | |
d2e6d5d6 | 2317 | |
befb629b AK |
2318 | if (__le32_to_cpu(migr_rec->ascending_migr) && |
2319 | (units < | |
2320 | (__le32_to_cpu(migr_rec->num_migr_units)-1)) && | |
2321 | (super->migr_rec->rec_status == | |
2322 | __cpu_to_le32(UNIT_SRC_IN_CP_AREA))) | |
2323 | units++; | |
2324 | ||
d2e6d5d6 | 2325 | info->reshape_progress = blocks_per_unit * units; |
6289d1e0 | 2326 | |
d2e6d5d6 AK |
2327 | dprintf("IMSM: General Migration checkpoint : %llu " |
2328 | "(%llu) -> read reshape progress : %llu\n", | |
2329 | units, blocks_per_unit, info->reshape_progress); | |
75156c46 AK |
2330 | |
2331 | used_disks = imsm_num_data_members(dev, 1); | |
2332 | if (used_disks > 0) { | |
2333 | array_blocks = map->blocks_per_member * | |
2334 | used_disks; | |
2335 | /* round array size down to closest MB | |
2336 | */ | |
2337 | info->custom_array_size = (array_blocks | |
2338 | >> SECT_PER_MB_SHIFT) | |
2339 | << SECT_PER_MB_SHIFT; | |
2340 | } | |
d2e6d5d6 | 2341 | } |
1e5c6983 DW |
2342 | case MIGR_VERIFY: |
2343 | /* we could emulate the checkpointing of | |
2344 | * 'sync_action=check' migrations, but for now | |
2345 | * we just immediately complete them | |
2346 | */ | |
2347 | case MIGR_REBUILD: | |
2348 | /* this is handled by container_content_imsm() */ | |
1e5c6983 DW |
2349 | case MIGR_STATE_CHANGE: |
2350 | /* FIXME handle other migrations */ | |
2351 | default: | |
2352 | /* we are not dirty, so... */ | |
2353 | info->resync_start = MaxSector; | |
2354 | } | |
b6796ce1 | 2355 | } |
301406c9 DW |
2356 | |
2357 | strncpy(info->name, (char *) dev->volume, MAX_RAID_SERIAL_LEN); | |
2358 | info->name[MAX_RAID_SERIAL_LEN] = 0; | |
bf5a934a | 2359 | |
f35f2525 N |
2360 | info->array.major_version = -1; |
2361 | info->array.minor_version = -2; | |
e207da2f AW |
2362 | devname = devnum2devname(st->container_dev); |
2363 | *info->text_version = '\0'; | |
2364 | if (devname) | |
2365 | sprintf(info->text_version, "/%s/%d", devname, info->container_member); | |
2366 | free(devname); | |
a67dd8cc | 2367 | info->safe_mode_delay = 4000; /* 4 secs like the Matrix driver */ |
51006d85 | 2368 | uuid_from_super_imsm(st, info->uuid); |
a5d85af7 N |
2369 | |
2370 | if (dmap) { | |
2371 | int i, j; | |
2372 | for (i=0; i<map_disks; i++) { | |
2373 | dmap[i] = 0; | |
2374 | if (i < info->array.raid_disks) { | |
2375 | struct imsm_disk *dsk; | |
98130f40 | 2376 | j = get_imsm_disk_idx(dev, i, -1); |
a5d85af7 N |
2377 | dsk = get_imsm_disk(super, j); |
2378 | if (dsk && (dsk->status & CONFIGURED_DISK)) | |
2379 | dmap[i] = 1; | |
2380 | } | |
2381 | } | |
2382 | } | |
81ac8b4d | 2383 | } |
bf5a934a | 2384 | |
97b4d0e9 DW |
2385 | static __u8 imsm_check_degraded(struct intel_super *super, struct imsm_dev *dev, int failed); |
2386 | static int imsm_count_failed(struct intel_super *super, struct imsm_dev *dev); | |
2387 | ||
2388 | static struct imsm_disk *get_imsm_missing(struct intel_super *super, __u8 index) | |
2389 | { | |
2390 | struct dl *d; | |
2391 | ||
2392 | for (d = super->missing; d; d = d->next) | |
2393 | if (d->index == index) | |
2394 | return &d->disk; | |
2395 | return NULL; | |
2396 | } | |
2397 | ||
a5d85af7 | 2398 | static void getinfo_super_imsm(struct supertype *st, struct mdinfo *info, char *map) |
4f5bc454 DW |
2399 | { |
2400 | struct intel_super *super = st->sb; | |
4f5bc454 | 2401 | struct imsm_disk *disk; |
a5d85af7 | 2402 | int map_disks = info->array.raid_disks; |
ab3cb6b3 N |
2403 | int max_enough = -1; |
2404 | int i; | |
2405 | struct imsm_super *mpb; | |
4f5bc454 | 2406 | |
bf5a934a | 2407 | if (super->current_vol >= 0) { |
a5d85af7 | 2408 | getinfo_super_imsm_volume(st, info, map); |
bf5a934a DW |
2409 | return; |
2410 | } | |
95eeceeb | 2411 | memset(info, 0, sizeof(*info)); |
d23fe947 DW |
2412 | |
2413 | /* Set raid_disks to zero so that Assemble will always pull in valid | |
2414 | * spares | |
2415 | */ | |
2416 | info->array.raid_disks = 0; | |
cdddbdbc DW |
2417 | info->array.level = LEVEL_CONTAINER; |
2418 | info->array.layout = 0; | |
2419 | info->array.md_minor = -1; | |
c2c087e6 | 2420 | info->array.ctime = 0; /* N/A for imsm */ |
cdddbdbc DW |
2421 | info->array.utime = 0; |
2422 | info->array.chunk_size = 0; | |
2423 | ||
2424 | info->disk.major = 0; | |
2425 | info->disk.minor = 0; | |
cdddbdbc | 2426 | info->disk.raid_disk = -1; |
c2c087e6 | 2427 | info->reshape_active = 0; |
f35f2525 N |
2428 | info->array.major_version = -1; |
2429 | info->array.minor_version = -2; | |
c2c087e6 | 2430 | strcpy(info->text_version, "imsm"); |
a67dd8cc | 2431 | info->safe_mode_delay = 0; |
c2c087e6 DW |
2432 | info->disk.number = -1; |
2433 | info->disk.state = 0; | |
c5afc314 | 2434 | info->name[0] = 0; |
921d9e16 | 2435 | info->recovery_start = MaxSector; |
c2c087e6 | 2436 | |
97b4d0e9 | 2437 | /* do we have the all the insync disks that we expect? */ |
ab3cb6b3 | 2438 | mpb = super->anchor; |
97b4d0e9 | 2439 | |
ab3cb6b3 N |
2440 | for (i = 0; i < mpb->num_raid_devs; i++) { |
2441 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
2442 | int failed, enough, j, missing = 0; | |
2443 | struct imsm_map *map; | |
2444 | __u8 state; | |
97b4d0e9 | 2445 | |
ab3cb6b3 N |
2446 | failed = imsm_count_failed(super, dev); |
2447 | state = imsm_check_degraded(super, dev, failed); | |
2448 | map = get_imsm_map(dev, dev->vol.migr_state); | |
2449 | ||
2450 | /* any newly missing disks? | |
2451 | * (catches single-degraded vs double-degraded) | |
2452 | */ | |
2453 | for (j = 0; j < map->num_members; j++) { | |
98130f40 | 2454 | __u32 ord = get_imsm_ord_tbl_ent(dev, i, -1); |
ab3cb6b3 N |
2455 | __u32 idx = ord_to_idx(ord); |
2456 | ||
2457 | if (!(ord & IMSM_ORD_REBUILD) && | |
2458 | get_imsm_missing(super, idx)) { | |
2459 | missing = 1; | |
2460 | break; | |
2461 | } | |
97b4d0e9 | 2462 | } |
ab3cb6b3 N |
2463 | |
2464 | if (state == IMSM_T_STATE_FAILED) | |
2465 | enough = -1; | |
2466 | else if (state == IMSM_T_STATE_DEGRADED && | |
2467 | (state != map->map_state || missing)) | |
2468 | enough = 0; | |
2469 | else /* we're normal, or already degraded */ | |
2470 | enough = 1; | |
2471 | ||
2472 | /* in the missing/failed disk case check to see | |
2473 | * if at least one array is runnable | |
2474 | */ | |
2475 | max_enough = max(max_enough, enough); | |
2476 | } | |
2477 | dprintf("%s: enough: %d\n", __func__, max_enough); | |
2478 | info->container_enough = max_enough; | |
97b4d0e9 | 2479 | |
4a04ec6c | 2480 | if (super->disks) { |
14e8215b DW |
2481 | __u32 reserved = imsm_reserved_sectors(super, super->disks); |
2482 | ||
b9f594fe | 2483 | disk = &super->disks->disk; |
14e8215b DW |
2484 | info->data_offset = __le32_to_cpu(disk->total_blocks) - reserved; |
2485 | info->component_size = reserved; | |
25ed7e59 | 2486 | info->disk.state = is_configured(disk) ? (1 << MD_DISK_ACTIVE) : 0; |
df474657 DW |
2487 | /* we don't change info->disk.raid_disk here because |
2488 | * this state will be finalized in mdmon after we have | |
2489 | * found the 'most fresh' version of the metadata | |
2490 | */ | |
25ed7e59 DW |
2491 | info->disk.state |= is_failed(disk) ? (1 << MD_DISK_FAULTY) : 0; |
2492 | info->disk.state |= is_spare(disk) ? 0 : (1 << MD_DISK_SYNC); | |
cdddbdbc | 2493 | } |
a575e2a7 DW |
2494 | |
2495 | /* only call uuid_from_super_imsm when this disk is part of a populated container, | |
2496 | * ->compare_super may have updated the 'num_raid_devs' field for spares | |
2497 | */ | |
2498 | if (info->disk.state & (1 << MD_DISK_SYNC) || super->anchor->num_raid_devs) | |
36ba7d48 | 2499 | uuid_from_super_imsm(st, info->uuid); |
22e263f6 AC |
2500 | else |
2501 | memcpy(info->uuid, uuid_zero, sizeof(uuid_zero)); | |
a5d85af7 N |
2502 | |
2503 | /* I don't know how to compute 'map' on imsm, so use safe default */ | |
2504 | if (map) { | |
2505 | int i; | |
2506 | for (i = 0; i < map_disks; i++) | |
2507 | map[i] = 1; | |
2508 | } | |
2509 | ||
cdddbdbc DW |
2510 | } |
2511 | ||
5c4cd5da AC |
2512 | /* allocates memory and fills disk in mdinfo structure |
2513 | * for each disk in array */ | |
2514 | struct mdinfo *getinfo_super_disks_imsm(struct supertype *st) | |
2515 | { | |
2516 | struct mdinfo *mddev = NULL; | |
2517 | struct intel_super *super = st->sb; | |
2518 | struct imsm_disk *disk; | |
2519 | int count = 0; | |
2520 | struct dl *dl; | |
2521 | if (!super || !super->disks) | |
2522 | return NULL; | |
2523 | dl = super->disks; | |
2524 | mddev = malloc(sizeof(*mddev)); | |
2525 | if (!mddev) { | |
2526 | fprintf(stderr, Name ": Failed to allocate memory.\n"); | |
2527 | return NULL; | |
2528 | } | |
2529 | memset(mddev, 0, sizeof(*mddev)); | |
2530 | while (dl) { | |
2531 | struct mdinfo *tmp; | |
2532 | disk = &dl->disk; | |
2533 | tmp = malloc(sizeof(*tmp)); | |
2534 | if (!tmp) { | |
2535 | fprintf(stderr, Name ": Failed to allocate memory.\n"); | |
2536 | if (mddev) | |
2537 | sysfs_free(mddev); | |
2538 | return NULL; | |
2539 | } | |
2540 | memset(tmp, 0, sizeof(*tmp)); | |
2541 | if (mddev->devs) | |
2542 | tmp->next = mddev->devs; | |
2543 | mddev->devs = tmp; | |
2544 | tmp->disk.number = count++; | |
2545 | tmp->disk.major = dl->major; | |
2546 | tmp->disk.minor = dl->minor; | |
2547 | tmp->disk.state = is_configured(disk) ? | |
2548 | (1 << MD_DISK_ACTIVE) : 0; | |
2549 | tmp->disk.state |= is_failed(disk) ? (1 << MD_DISK_FAULTY) : 0; | |
2550 | tmp->disk.state |= is_spare(disk) ? 0 : (1 << MD_DISK_SYNC); | |
2551 | tmp->disk.raid_disk = -1; | |
2552 | dl = dl->next; | |
2553 | } | |
2554 | return mddev; | |
2555 | } | |
2556 | ||
cdddbdbc DW |
2557 | static int update_super_imsm(struct supertype *st, struct mdinfo *info, |
2558 | char *update, char *devname, int verbose, | |
2559 | int uuid_set, char *homehost) | |
2560 | { | |
f352c545 DW |
2561 | /* For 'assemble' and 'force' we need to return non-zero if any |
2562 | * change was made. For others, the return value is ignored. | |
2563 | * Update options are: | |
2564 | * force-one : This device looks a bit old but needs to be included, | |
2565 | * update age info appropriately. | |
2566 | * assemble: clear any 'faulty' flag to allow this device to | |
2567 | * be assembled. | |
2568 | * force-array: Array is degraded but being forced, mark it clean | |
2569 | * if that will be needed to assemble it. | |
2570 | * | |
2571 | * newdev: not used ???? | |
2572 | * grow: Array has gained a new device - this is currently for | |
2573 | * linear only | |
2574 | * resync: mark as dirty so a resync will happen. | |
2575 | * name: update the name - preserving the homehost | |
6e46bf34 | 2576 | * uuid: Change the uuid of the array to match watch is given |
f352c545 DW |
2577 | * |
2578 | * Following are not relevant for this imsm: | |
2579 | * sparc2.2 : update from old dodgey metadata | |
2580 | * super-minor: change the preferred_minor number | |
2581 | * summaries: update redundant counters. | |
f352c545 DW |
2582 | * homehost: update the recorded homehost |
2583 | * _reshape_progress: record new reshape_progress position. | |
2584 | */ | |
6e46bf34 DW |
2585 | int rv = 1; |
2586 | struct intel_super *super = st->sb; | |
2587 | struct imsm_super *mpb; | |
f352c545 | 2588 | |
6e46bf34 DW |
2589 | /* we can only update container info */ |
2590 | if (!super || super->current_vol >= 0 || !super->anchor) | |
2591 | return 1; | |
2592 | ||
2593 | mpb = super->anchor; | |
2594 | ||
2595 | if (strcmp(update, "uuid") == 0 && uuid_set && !info->update_private) | |
1e2b2765 | 2596 | rv = -1; |
6e46bf34 DW |
2597 | else if (strcmp(update, "uuid") == 0 && uuid_set && info->update_private) { |
2598 | mpb->orig_family_num = *((__u32 *) info->update_private); | |
2599 | rv = 0; | |
2600 | } else if (strcmp(update, "uuid") == 0) { | |
2601 | __u32 *new_family = malloc(sizeof(*new_family)); | |
2602 | ||
2603 | /* update orig_family_number with the incoming random | |
2604 | * data, report the new effective uuid, and store the | |
2605 | * new orig_family_num for future updates. | |
2606 | */ | |
2607 | if (new_family) { | |
2608 | memcpy(&mpb->orig_family_num, info->uuid, sizeof(__u32)); | |
2609 | uuid_from_super_imsm(st, info->uuid); | |
2610 | *new_family = mpb->orig_family_num; | |
2611 | info->update_private = new_family; | |
2612 | rv = 0; | |
2613 | } | |
2614 | } else if (strcmp(update, "assemble") == 0) | |
2615 | rv = 0; | |
2616 | else | |
1e2b2765 | 2617 | rv = -1; |
f352c545 | 2618 | |
6e46bf34 DW |
2619 | /* successful update? recompute checksum */ |
2620 | if (rv == 0) | |
2621 | mpb->check_sum = __le32_to_cpu(__gen_imsm_checksum(mpb)); | |
f352c545 DW |
2622 | |
2623 | return rv; | |
cdddbdbc DW |
2624 | } |
2625 | ||
c2c087e6 | 2626 | static size_t disks_to_mpb_size(int disks) |
cdddbdbc | 2627 | { |
c2c087e6 | 2628 | size_t size; |
cdddbdbc | 2629 | |
c2c087e6 DW |
2630 | size = sizeof(struct imsm_super); |
2631 | size += (disks - 1) * sizeof(struct imsm_disk); | |
2632 | size += 2 * sizeof(struct imsm_dev); | |
2633 | /* up to 2 maps per raid device (-2 for imsm_maps in imsm_dev */ | |
2634 | size += (4 - 2) * sizeof(struct imsm_map); | |
2635 | /* 4 possible disk_ord_tbl's */ | |
2636 | size += 4 * (disks - 1) * sizeof(__u32); | |
2637 | ||
2638 | return size; | |
2639 | } | |
2640 | ||
2641 | static __u64 avail_size_imsm(struct supertype *st, __u64 devsize) | |
2642 | { | |
2643 | if (devsize < (MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS)) | |
2644 | return 0; | |
2645 | ||
2646 | return devsize - (MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS); | |
cdddbdbc DW |
2647 | } |
2648 | ||
ba2de7ba DW |
2649 | static void free_devlist(struct intel_super *super) |
2650 | { | |
2651 | struct intel_dev *dv; | |
2652 | ||
2653 | while (super->devlist) { | |
2654 | dv = super->devlist->next; | |
2655 | free(super->devlist->dev); | |
2656 | free(super->devlist); | |
2657 | super->devlist = dv; | |
2658 | } | |
2659 | } | |
2660 | ||
2661 | static void imsm_copy_dev(struct imsm_dev *dest, struct imsm_dev *src) | |
2662 | { | |
2663 | memcpy(dest, src, sizeof_imsm_dev(src, 0)); | |
2664 | } | |
2665 | ||
cdddbdbc DW |
2666 | static int compare_super_imsm(struct supertype *st, struct supertype *tst) |
2667 | { | |
2668 | /* | |
2669 | * return: | |
2670 | * 0 same, or first was empty, and second was copied | |
2671 | * 1 second had wrong number | |
2672 | * 2 wrong uuid | |
2673 | * 3 wrong other info | |
2674 | */ | |
2675 | struct intel_super *first = st->sb; | |
2676 | struct intel_super *sec = tst->sb; | |
2677 | ||
2678 | if (!first) { | |
2679 | st->sb = tst->sb; | |
2680 | tst->sb = NULL; | |
2681 | return 0; | |
2682 | } | |
8603ea6f LM |
2683 | /* in platform dependent environment test if the disks |
2684 | * use the same Intel hba | |
2685 | */ | |
2686 | if (!check_env("IMSM_NO_PLATFORM")) { | |
ea2bc72b LM |
2687 | if (!first->hba || !sec->hba || |
2688 | (first->hba->type != sec->hba->type)) { | |
8603ea6f LM |
2689 | fprintf(stderr, |
2690 | "HBAs of devices does not match %s != %s\n", | |
ea2bc72b LM |
2691 | first->hba ? get_sys_dev_type(first->hba->type) : NULL, |
2692 | sec->hba ? get_sys_dev_type(sec->hba->type) : NULL); | |
8603ea6f LM |
2693 | return 3; |
2694 | } | |
2695 | } | |
cdddbdbc | 2696 | |
d23fe947 DW |
2697 | /* if an anchor does not have num_raid_devs set then it is a free |
2698 | * floating spare | |
2699 | */ | |
2700 | if (first->anchor->num_raid_devs > 0 && | |
2701 | sec->anchor->num_raid_devs > 0) { | |
a2b97981 DW |
2702 | /* Determine if these disks might ever have been |
2703 | * related. Further disambiguation can only take place | |
2704 | * in load_super_imsm_all | |
2705 | */ | |
2706 | __u32 first_family = first->anchor->orig_family_num; | |
2707 | __u32 sec_family = sec->anchor->orig_family_num; | |
2708 | ||
f796af5d DW |
2709 | if (memcmp(first->anchor->sig, sec->anchor->sig, |
2710 | MAX_SIGNATURE_LENGTH) != 0) | |
2711 | return 3; | |
2712 | ||
a2b97981 DW |
2713 | if (first_family == 0) |
2714 | first_family = first->anchor->family_num; | |
2715 | if (sec_family == 0) | |
2716 | sec_family = sec->anchor->family_num; | |
2717 | ||
2718 | if (first_family != sec_family) | |
d23fe947 | 2719 | return 3; |
f796af5d | 2720 | |
d23fe947 | 2721 | } |
cdddbdbc | 2722 | |
f796af5d | 2723 | |
3e372e5a DW |
2724 | /* if 'first' is a spare promote it to a populated mpb with sec's |
2725 | * family number | |
2726 | */ | |
2727 | if (first->anchor->num_raid_devs == 0 && | |
2728 | sec->anchor->num_raid_devs > 0) { | |
78d30f94 | 2729 | int i; |
ba2de7ba DW |
2730 | struct intel_dev *dv; |
2731 | struct imsm_dev *dev; | |
78d30f94 DW |
2732 | |
2733 | /* we need to copy raid device info from sec if an allocation | |
2734 | * fails here we don't associate the spare | |
2735 | */ | |
2736 | for (i = 0; i < sec->anchor->num_raid_devs; i++) { | |
ba2de7ba DW |
2737 | dv = malloc(sizeof(*dv)); |
2738 | if (!dv) | |
2739 | break; | |
2740 | dev = malloc(sizeof_imsm_dev(get_imsm_dev(sec, i), 1)); | |
2741 | if (!dev) { | |
2742 | free(dv); | |
2743 | break; | |
78d30f94 | 2744 | } |
ba2de7ba DW |
2745 | dv->dev = dev; |
2746 | dv->index = i; | |
2747 | dv->next = first->devlist; | |
2748 | first->devlist = dv; | |
78d30f94 | 2749 | } |
709743c5 | 2750 | if (i < sec->anchor->num_raid_devs) { |
ba2de7ba DW |
2751 | /* allocation failure */ |
2752 | free_devlist(first); | |
2753 | fprintf(stderr, "imsm: failed to associate spare\n"); | |
2754 | return 3; | |
78d30f94 | 2755 | } |
3e372e5a | 2756 | first->anchor->num_raid_devs = sec->anchor->num_raid_devs; |
148acb7b | 2757 | first->anchor->orig_family_num = sec->anchor->orig_family_num; |
3e372e5a | 2758 | first->anchor->family_num = sec->anchor->family_num; |
ac6449be | 2759 | memcpy(first->anchor->sig, sec->anchor->sig, MAX_SIGNATURE_LENGTH); |
709743c5 DW |
2760 | for (i = 0; i < sec->anchor->num_raid_devs; i++) |
2761 | imsm_copy_dev(get_imsm_dev(first, i), get_imsm_dev(sec, i)); | |
3e372e5a DW |
2762 | } |
2763 | ||
cdddbdbc DW |
2764 | return 0; |
2765 | } | |
2766 | ||
0030e8d6 DW |
2767 | static void fd2devname(int fd, char *name) |
2768 | { | |
2769 | struct stat st; | |
2770 | char path[256]; | |
33a6535d | 2771 | char dname[PATH_MAX]; |
0030e8d6 DW |
2772 | char *nm; |
2773 | int rv; | |
2774 | ||
2775 | name[0] = '\0'; | |
2776 | if (fstat(fd, &st) != 0) | |
2777 | return; | |
2778 | sprintf(path, "/sys/dev/block/%d:%d", | |
2779 | major(st.st_rdev), minor(st.st_rdev)); | |
2780 | ||
2781 | rv = readlink(path, dname, sizeof(dname)); | |
2782 | if (rv <= 0) | |
2783 | return; | |
2784 | ||
2785 | dname[rv] = '\0'; | |
2786 | nm = strrchr(dname, '/'); | |
2787 | nm++; | |
2788 | snprintf(name, MAX_RAID_SERIAL_LEN, "/dev/%s", nm); | |
2789 | } | |
2790 | ||
cdddbdbc DW |
2791 | extern int scsi_get_serial(int fd, void *buf, size_t buf_len); |
2792 | ||
2793 | static int imsm_read_serial(int fd, char *devname, | |
2794 | __u8 serial[MAX_RAID_SERIAL_LEN]) | |
2795 | { | |
2796 | unsigned char scsi_serial[255]; | |
cdddbdbc DW |
2797 | int rv; |
2798 | int rsp_len; | |
1f24f035 | 2799 | int len; |
316e2bf4 DW |
2800 | char *dest; |
2801 | char *src; | |
2802 | char *rsp_buf; | |
2803 | int i; | |
cdddbdbc DW |
2804 | |
2805 | memset(scsi_serial, 0, sizeof(scsi_serial)); | |
cdddbdbc | 2806 | |
f9ba0ff1 DW |
2807 | rv = scsi_get_serial(fd, scsi_serial, sizeof(scsi_serial)); |
2808 | ||
40ebbb9c | 2809 | if (rv && check_env("IMSM_DEVNAME_AS_SERIAL")) { |
f9ba0ff1 DW |
2810 | memset(serial, 0, MAX_RAID_SERIAL_LEN); |
2811 | fd2devname(fd, (char *) serial); | |
0030e8d6 DW |
2812 | return 0; |
2813 | } | |
2814 | ||
cdddbdbc DW |
2815 | if (rv != 0) { |
2816 | if (devname) | |
2817 | fprintf(stderr, | |
2818 | Name ": Failed to retrieve serial for %s\n", | |
2819 | devname); | |
2820 | return rv; | |
2821 | } | |
2822 | ||
2823 | rsp_len = scsi_serial[3]; | |
03cd4cc8 DW |
2824 | if (!rsp_len) { |
2825 | if (devname) | |
2826 | fprintf(stderr, | |
2827 | Name ": Failed to retrieve serial for %s\n", | |
2828 | devname); | |
2829 | return 2; | |
2830 | } | |
1f24f035 | 2831 | rsp_buf = (char *) &scsi_serial[4]; |
5c3db629 | 2832 | |
316e2bf4 DW |
2833 | /* trim all whitespace and non-printable characters and convert |
2834 | * ':' to ';' | |
2835 | */ | |
2836 | for (i = 0, dest = rsp_buf; i < rsp_len; i++) { | |
2837 | src = &rsp_buf[i]; | |
2838 | if (*src > 0x20) { | |
2839 | /* ':' is reserved for use in placeholder serial | |
2840 | * numbers for missing disks | |
2841 | */ | |
2842 | if (*src == ':') | |
2843 | *dest++ = ';'; | |
2844 | else | |
2845 | *dest++ = *src; | |
2846 | } | |
2847 | } | |
2848 | len = dest - rsp_buf; | |
2849 | dest = rsp_buf; | |
2850 | ||
2851 | /* truncate leading characters */ | |
2852 | if (len > MAX_RAID_SERIAL_LEN) { | |
2853 | dest += len - MAX_RAID_SERIAL_LEN; | |
1f24f035 | 2854 | len = MAX_RAID_SERIAL_LEN; |
316e2bf4 | 2855 | } |
5c3db629 | 2856 | |
5c3db629 | 2857 | memset(serial, 0, MAX_RAID_SERIAL_LEN); |
316e2bf4 | 2858 | memcpy(serial, dest, len); |
cdddbdbc DW |
2859 | |
2860 | return 0; | |
2861 | } | |
2862 | ||
1f24f035 DW |
2863 | static int serialcmp(__u8 *s1, __u8 *s2) |
2864 | { | |
2865 | return strncmp((char *) s1, (char *) s2, MAX_RAID_SERIAL_LEN); | |
2866 | } | |
2867 | ||
2868 | static void serialcpy(__u8 *dest, __u8 *src) | |
2869 | { | |
2870 | strncpy((char *) dest, (char *) src, MAX_RAID_SERIAL_LEN); | |
2871 | } | |
2872 | ||
1799c9e8 | 2873 | #ifndef MDASSEMBLE |
54c2c1ea DW |
2874 | static struct dl *serial_to_dl(__u8 *serial, struct intel_super *super) |
2875 | { | |
2876 | struct dl *dl; | |
2877 | ||
2878 | for (dl = super->disks; dl; dl = dl->next) | |
2879 | if (serialcmp(dl->serial, serial) == 0) | |
2880 | break; | |
2881 | ||
2882 | return dl; | |
2883 | } | |
1799c9e8 | 2884 | #endif |
54c2c1ea | 2885 | |
a2b97981 DW |
2886 | static struct imsm_disk * |
2887 | __serial_to_disk(__u8 *serial, struct imsm_super *mpb, int *idx) | |
2888 | { | |
2889 | int i; | |
2890 | ||
2891 | for (i = 0; i < mpb->num_disks; i++) { | |
2892 | struct imsm_disk *disk = __get_imsm_disk(mpb, i); | |
2893 | ||
2894 | if (serialcmp(disk->serial, serial) == 0) { | |
2895 | if (idx) | |
2896 | *idx = i; | |
2897 | return disk; | |
2898 | } | |
2899 | } | |
2900 | ||
2901 | return NULL; | |
2902 | } | |
2903 | ||
cdddbdbc DW |
2904 | static int |
2905 | load_imsm_disk(int fd, struct intel_super *super, char *devname, int keep_fd) | |
2906 | { | |
a2b97981 | 2907 | struct imsm_disk *disk; |
cdddbdbc DW |
2908 | struct dl *dl; |
2909 | struct stat stb; | |
cdddbdbc | 2910 | int rv; |
a2b97981 | 2911 | char name[40]; |
d23fe947 DW |
2912 | __u8 serial[MAX_RAID_SERIAL_LEN]; |
2913 | ||
2914 | rv = imsm_read_serial(fd, devname, serial); | |
2915 | ||
2916 | if (rv != 0) | |
2917 | return 2; | |
2918 | ||
a2b97981 | 2919 | dl = calloc(1, sizeof(*dl)); |
b9f594fe | 2920 | if (!dl) { |
cdddbdbc DW |
2921 | if (devname) |
2922 | fprintf(stderr, | |
2923 | Name ": failed to allocate disk buffer for %s\n", | |
2924 | devname); | |
2925 | return 2; | |
2926 | } | |
cdddbdbc | 2927 | |
a2b97981 DW |
2928 | fstat(fd, &stb); |
2929 | dl->major = major(stb.st_rdev); | |
2930 | dl->minor = minor(stb.st_rdev); | |
2931 | dl->next = super->disks; | |
2932 | dl->fd = keep_fd ? fd : -1; | |
2933 | assert(super->disks == NULL); | |
2934 | super->disks = dl; | |
2935 | serialcpy(dl->serial, serial); | |
2936 | dl->index = -2; | |
2937 | dl->e = NULL; | |
2938 | fd2devname(fd, name); | |
2939 | if (devname) | |
2940 | dl->devname = strdup(devname); | |
2941 | else | |
2942 | dl->devname = strdup(name); | |
cdddbdbc | 2943 | |
d23fe947 | 2944 | /* look up this disk's index in the current anchor */ |
a2b97981 DW |
2945 | disk = __serial_to_disk(dl->serial, super->anchor, &dl->index); |
2946 | if (disk) { | |
2947 | dl->disk = *disk; | |
2948 | /* only set index on disks that are a member of a | |
2949 | * populated contianer, i.e. one with raid_devs | |
2950 | */ | |
2951 | if (is_failed(&dl->disk)) | |
3f6efecc | 2952 | dl->index = -2; |
a2b97981 DW |
2953 | else if (is_spare(&dl->disk)) |
2954 | dl->index = -1; | |
3f6efecc DW |
2955 | } |
2956 | ||
949c47a0 DW |
2957 | return 0; |
2958 | } | |
2959 | ||
0e600426 | 2960 | #ifndef MDASSEMBLE |
0c046afd DW |
2961 | /* When migrating map0 contains the 'destination' state while map1 |
2962 | * contains the current state. When not migrating map0 contains the | |
2963 | * current state. This routine assumes that map[0].map_state is set to | |
2964 | * the current array state before being called. | |
2965 | * | |
2966 | * Migration is indicated by one of the following states | |
2967 | * 1/ Idle (migr_state=0 map0state=normal||unitialized||degraded||failed) | |
e3bba0e0 | 2968 | * 2/ Initialize (migr_state=1 migr_type=MIGR_INIT map0state=normal |
0c046afd | 2969 | * map1state=unitialized) |
1484e727 | 2970 | * 3/ Repair (Resync) (migr_state=1 migr_type=MIGR_REPAIR map0state=normal |
0c046afd | 2971 | * map1state=normal) |
e3bba0e0 | 2972 | * 4/ Rebuild (migr_state=1 migr_type=MIGR_REBUILD map0state=normal |
0c046afd | 2973 | * map1state=degraded) |
8e59f3d8 AK |
2974 | * 5/ Migration (mig_state=1 migr_type=MIGR_GEN_MIGR map0state=normal |
2975 | * map1state=normal) | |
0c046afd | 2976 | */ |
8e59f3d8 AK |
2977 | static void migrate(struct imsm_dev *dev, struct intel_super *super, |
2978 | __u8 to_state, int migr_type) | |
3393c6af | 2979 | { |
0c046afd | 2980 | struct imsm_map *dest; |
3393c6af DW |
2981 | struct imsm_map *src = get_imsm_map(dev, 0); |
2982 | ||
0c046afd | 2983 | dev->vol.migr_state = 1; |
1484e727 | 2984 | set_migr_type(dev, migr_type); |
f8f603f1 | 2985 | dev->vol.curr_migr_unit = 0; |
0c046afd DW |
2986 | dest = get_imsm_map(dev, 1); |
2987 | ||
0556e1a2 | 2988 | /* duplicate and then set the target end state in map[0] */ |
3393c6af | 2989 | memcpy(dest, src, sizeof_imsm_map(src)); |
28bce06f AK |
2990 | if ((migr_type == MIGR_REBUILD) || |
2991 | (migr_type == MIGR_GEN_MIGR)) { | |
0556e1a2 DW |
2992 | __u32 ord; |
2993 | int i; | |
2994 | ||
2995 | for (i = 0; i < src->num_members; i++) { | |
2996 | ord = __le32_to_cpu(src->disk_ord_tbl[i]); | |
2997 | set_imsm_ord_tbl_ent(src, i, ord_to_idx(ord)); | |
2998 | } | |
2999 | } | |
3000 | ||
8e59f3d8 AK |
3001 | if (migr_type == MIGR_GEN_MIGR) |
3002 | /* Clear migration record */ | |
3003 | memset(super->migr_rec, 0, sizeof(struct migr_record)); | |
3004 | ||
0c046afd | 3005 | src->map_state = to_state; |
949c47a0 | 3006 | } |
f8f603f1 DW |
3007 | |
3008 | static void end_migration(struct imsm_dev *dev, __u8 map_state) | |
3009 | { | |
3010 | struct imsm_map *map = get_imsm_map(dev, 0); | |
0556e1a2 | 3011 | struct imsm_map *prev = get_imsm_map(dev, dev->vol.migr_state); |
28bce06f | 3012 | int i, j; |
0556e1a2 DW |
3013 | |
3014 | /* merge any IMSM_ORD_REBUILD bits that were not successfully | |
3015 | * completed in the last migration. | |
3016 | * | |
28bce06f | 3017 | * FIXME add support for raid-level-migration |
0556e1a2 DW |
3018 | */ |
3019 | for (i = 0; i < prev->num_members; i++) | |
28bce06f AK |
3020 | for (j = 0; j < map->num_members; j++) |
3021 | /* during online capacity expansion | |
3022 | * disks position can be changed if takeover is used | |
3023 | */ | |
3024 | if (ord_to_idx(map->disk_ord_tbl[j]) == | |
3025 | ord_to_idx(prev->disk_ord_tbl[i])) { | |
3026 | map->disk_ord_tbl[j] |= prev->disk_ord_tbl[i]; | |
3027 | break; | |
3028 | } | |
f8f603f1 DW |
3029 | |
3030 | dev->vol.migr_state = 0; | |
28bce06f | 3031 | dev->vol.migr_type = 0; |
f8f603f1 DW |
3032 | dev->vol.curr_migr_unit = 0; |
3033 | map->map_state = map_state; | |
3034 | } | |
0e600426 | 3035 | #endif |
949c47a0 DW |
3036 | |
3037 | static int parse_raid_devices(struct intel_super *super) | |
3038 | { | |
3039 | int i; | |
3040 | struct imsm_dev *dev_new; | |
4d7b1503 | 3041 | size_t len, len_migr; |
401d313b | 3042 | size_t max_len = 0; |
4d7b1503 DW |
3043 | size_t space_needed = 0; |
3044 | struct imsm_super *mpb = super->anchor; | |
949c47a0 DW |
3045 | |
3046 | for (i = 0; i < super->anchor->num_raid_devs; i++) { | |
3047 | struct imsm_dev *dev_iter = __get_imsm_dev(super->anchor, i); | |
ba2de7ba | 3048 | struct intel_dev *dv; |
949c47a0 | 3049 | |
4d7b1503 DW |
3050 | len = sizeof_imsm_dev(dev_iter, 0); |
3051 | len_migr = sizeof_imsm_dev(dev_iter, 1); | |
3052 | if (len_migr > len) | |
3053 | space_needed += len_migr - len; | |
3054 | ||
ba2de7ba DW |
3055 | dv = malloc(sizeof(*dv)); |
3056 | if (!dv) | |
3057 | return 1; | |
401d313b AK |
3058 | if (max_len < len_migr) |
3059 | max_len = len_migr; | |
3060 | if (max_len > len_migr) | |
3061 | space_needed += max_len - len_migr; | |
3062 | dev_new = malloc(max_len); | |
ba2de7ba DW |
3063 | if (!dev_new) { |
3064 | free(dv); | |
949c47a0 | 3065 | return 1; |
ba2de7ba | 3066 | } |
949c47a0 | 3067 | imsm_copy_dev(dev_new, dev_iter); |
ba2de7ba DW |
3068 | dv->dev = dev_new; |
3069 | dv->index = i; | |
3070 | dv->next = super->devlist; | |
3071 | super->devlist = dv; | |
949c47a0 | 3072 | } |
cdddbdbc | 3073 | |
4d7b1503 DW |
3074 | /* ensure that super->buf is large enough when all raid devices |
3075 | * are migrating | |
3076 | */ | |
3077 | if (__le32_to_cpu(mpb->mpb_size) + space_needed > super->len) { | |
3078 | void *buf; | |
3079 | ||
3080 | len = ROUND_UP(__le32_to_cpu(mpb->mpb_size) + space_needed, 512); | |
3081 | if (posix_memalign(&buf, 512, len) != 0) | |
3082 | return 1; | |
3083 | ||
1f45a8ad DW |
3084 | memcpy(buf, super->buf, super->len); |
3085 | memset(buf + super->len, 0, len - super->len); | |
4d7b1503 DW |
3086 | free(super->buf); |
3087 | super->buf = buf; | |
3088 | super->len = len; | |
3089 | } | |
3090 | ||
cdddbdbc DW |
3091 | return 0; |
3092 | } | |
3093 | ||
604b746f JD |
3094 | /* retrieve a pointer to the bbm log which starts after all raid devices */ |
3095 | struct bbm_log *__get_imsm_bbm_log(struct imsm_super *mpb) | |
3096 | { | |
3097 | void *ptr = NULL; | |
3098 | ||
3099 | if (__le32_to_cpu(mpb->bbm_log_size)) { | |
3100 | ptr = mpb; | |
3101 | ptr += mpb->mpb_size - __le32_to_cpu(mpb->bbm_log_size); | |
3102 | } | |
3103 | ||
3104 | return ptr; | |
3105 | } | |
3106 | ||
e2f41b2c AK |
3107 | /******************************************************************************* |
3108 | * Function: check_mpb_migr_compatibility | |
3109 | * Description: Function checks for unsupported migration features: | |
3110 | * - migration optimization area (pba_of_lba0) | |
3111 | * - descending reshape (ascending_migr) | |
3112 | * Parameters: | |
3113 | * super : imsm metadata information | |
3114 | * Returns: | |
3115 | * 0 : migration is compatible | |
3116 | * -1 : migration is not compatible | |
3117 | ******************************************************************************/ | |
3118 | int check_mpb_migr_compatibility(struct intel_super *super) | |
3119 | { | |
3120 | struct imsm_map *map0, *map1; | |
3121 | struct migr_record *migr_rec = super->migr_rec; | |
3122 | int i; | |
3123 | ||
3124 | for (i = 0; i < super->anchor->num_raid_devs; i++) { | |
3125 | struct imsm_dev *dev_iter = __get_imsm_dev(super->anchor, i); | |
3126 | ||
3127 | if (dev_iter && | |
3128 | dev_iter->vol.migr_state == 1 && | |
3129 | dev_iter->vol.migr_type == MIGR_GEN_MIGR) { | |
3130 | /* This device is migrating */ | |
3131 | map0 = get_imsm_map(dev_iter, 0); | |
3132 | map1 = get_imsm_map(dev_iter, 1); | |
3133 | if (map0->pba_of_lba0 != map1->pba_of_lba0) | |
3134 | /* migration optimization area was used */ | |
3135 | return -1; | |
3136 | if (migr_rec->ascending_migr == 0 | |
3137 | && migr_rec->dest_depth_per_unit > 0) | |
3138 | /* descending reshape not supported yet */ | |
3139 | return -1; | |
3140 | } | |
3141 | } | |
3142 | return 0; | |
3143 | } | |
3144 | ||
d23fe947 | 3145 | static void __free_imsm(struct intel_super *super, int free_disks); |
9ca2c81c | 3146 | |
cdddbdbc | 3147 | /* load_imsm_mpb - read matrix metadata |
f2f5c343 | 3148 | * allocates super->mpb to be freed by free_imsm |
cdddbdbc DW |
3149 | */ |
3150 | static int load_imsm_mpb(int fd, struct intel_super *super, char *devname) | |
3151 | { | |
3152 | unsigned long long dsize; | |
cdddbdbc DW |
3153 | unsigned long long sectors; |
3154 | struct stat; | |
6416d527 | 3155 | struct imsm_super *anchor; |
cdddbdbc DW |
3156 | __u32 check_sum; |
3157 | ||
cdddbdbc | 3158 | get_dev_size(fd, NULL, &dsize); |
64436f06 N |
3159 | if (dsize < 1024) { |
3160 | if (devname) | |
3161 | fprintf(stderr, | |
3162 | Name ": %s: device to small for imsm\n", | |
3163 | devname); | |
3164 | return 1; | |
3165 | } | |
cdddbdbc DW |
3166 | |
3167 | if (lseek64(fd, dsize - (512 * 2), SEEK_SET) < 0) { | |
3168 | if (devname) | |
2e062e82 AK |
3169 | fprintf(stderr, Name |
3170 | ": Cannot seek to anchor block on %s: %s\n", | |
cdddbdbc DW |
3171 | devname, strerror(errno)); |
3172 | return 1; | |
3173 | } | |
3174 | ||
949c47a0 | 3175 | if (posix_memalign((void**)&anchor, 512, 512) != 0) { |
ad97895e DW |
3176 | if (devname) |
3177 | fprintf(stderr, | |
3178 | Name ": Failed to allocate imsm anchor buffer" | |
3179 | " on %s\n", devname); | |
3180 | return 1; | |
3181 | } | |
949c47a0 | 3182 | if (read(fd, anchor, 512) != 512) { |
cdddbdbc DW |
3183 | if (devname) |
3184 | fprintf(stderr, | |
3185 | Name ": Cannot read anchor block on %s: %s\n", | |
3186 | devname, strerror(errno)); | |
6416d527 | 3187 | free(anchor); |
cdddbdbc DW |
3188 | return 1; |
3189 | } | |
3190 | ||
6416d527 | 3191 | if (strncmp((char *) anchor->sig, MPB_SIGNATURE, MPB_SIG_LEN) != 0) { |
cdddbdbc DW |
3192 | if (devname) |
3193 | fprintf(stderr, | |
3194 | Name ": no IMSM anchor on %s\n", devname); | |
6416d527 | 3195 | free(anchor); |
cdddbdbc DW |
3196 | return 2; |
3197 | } | |
3198 | ||
d23fe947 | 3199 | __free_imsm(super, 0); |
f2f5c343 LM |
3200 | /* reload capability and hba */ |
3201 | ||
3202 | /* capability and hba must be updated with new super allocation */ | |
d424212e | 3203 | find_intel_hba_capability(fd, super, devname); |
949c47a0 DW |
3204 | super->len = ROUND_UP(anchor->mpb_size, 512); |
3205 | if (posix_memalign(&super->buf, 512, super->len) != 0) { | |
cdddbdbc DW |
3206 | if (devname) |
3207 | fprintf(stderr, | |
3208 | Name ": unable to allocate %zu byte mpb buffer\n", | |
949c47a0 | 3209 | super->len); |
6416d527 | 3210 | free(anchor); |
cdddbdbc DW |
3211 | return 2; |
3212 | } | |
949c47a0 | 3213 | memcpy(super->buf, anchor, 512); |
cdddbdbc | 3214 | |
6416d527 NB |
3215 | sectors = mpb_sectors(anchor) - 1; |
3216 | free(anchor); | |
8e59f3d8 AK |
3217 | |
3218 | if (posix_memalign(&super->migr_rec_buf, 512, 512) != 0) { | |
3219 | fprintf(stderr, Name | |
3220 | ": %s could not allocate migr_rec buffer\n", __func__); | |
3221 | free(super->buf); | |
3222 | return 2; | |
3223 | } | |
3224 | ||
949c47a0 | 3225 | if (!sectors) { |
ecf45690 DW |
3226 | check_sum = __gen_imsm_checksum(super->anchor); |
3227 | if (check_sum != __le32_to_cpu(super->anchor->check_sum)) { | |
3228 | if (devname) | |
3229 | fprintf(stderr, | |
3230 | Name ": IMSM checksum %x != %x on %s\n", | |
3231 | check_sum, | |
3232 | __le32_to_cpu(super->anchor->check_sum), | |
3233 | devname); | |
3234 | return 2; | |
3235 | } | |
3236 | ||
a2b97981 | 3237 | return 0; |
949c47a0 | 3238 | } |
cdddbdbc DW |
3239 | |
3240 | /* read the extended mpb */ | |
3241 | if (lseek64(fd, dsize - (512 * (2 + sectors)), SEEK_SET) < 0) { | |
3242 | if (devname) | |
3243 | fprintf(stderr, | |
3244 | Name ": Cannot seek to extended mpb on %s: %s\n", | |
3245 | devname, strerror(errno)); | |
3246 | return 1; | |
3247 | } | |
3248 | ||
f21e18ca | 3249 | if ((unsigned)read(fd, super->buf + 512, super->len - 512) != super->len - 512) { |
cdddbdbc DW |
3250 | if (devname) |
3251 | fprintf(stderr, | |
3252 | Name ": Cannot read extended mpb on %s: %s\n", | |
3253 | devname, strerror(errno)); | |
3254 | return 2; | |
3255 | } | |
3256 | ||
949c47a0 DW |
3257 | check_sum = __gen_imsm_checksum(super->anchor); |
3258 | if (check_sum != __le32_to_cpu(super->anchor->check_sum)) { | |
cdddbdbc DW |
3259 | if (devname) |
3260 | fprintf(stderr, | |
3261 | Name ": IMSM checksum %x != %x on %s\n", | |
949c47a0 | 3262 | check_sum, __le32_to_cpu(super->anchor->check_sum), |
cdddbdbc | 3263 | devname); |
db575f3b | 3264 | return 3; |
cdddbdbc DW |
3265 | } |
3266 | ||
604b746f JD |
3267 | /* FIXME the BBM log is disk specific so we cannot use this global |
3268 | * buffer for all disks. Ok for now since we only look at the global | |
3269 | * bbm_log_size parameter to gate assembly | |
3270 | */ | |
3271 | super->bbm_log = __get_imsm_bbm_log(super->anchor); | |
3272 | ||
a2b97981 DW |
3273 | return 0; |
3274 | } | |
3275 | ||
8e59f3d8 AK |
3276 | static int read_imsm_migr_rec(int fd, struct intel_super *super); |
3277 | ||
a2b97981 DW |
3278 | static int |
3279 | load_and_parse_mpb(int fd, struct intel_super *super, char *devname, int keep_fd) | |
3280 | { | |
3281 | int err; | |
3282 | ||
3283 | err = load_imsm_mpb(fd, super, devname); | |
3284 | if (err) | |
3285 | return err; | |
3286 | err = load_imsm_disk(fd, super, devname, keep_fd); | |
3287 | if (err) | |
3288 | return err; | |
3289 | err = parse_raid_devices(super); | |
4d7b1503 | 3290 | |
a2b97981 | 3291 | return err; |
cdddbdbc DW |
3292 | } |
3293 | ||
ae6aad82 DW |
3294 | static void __free_imsm_disk(struct dl *d) |
3295 | { | |
3296 | if (d->fd >= 0) | |
3297 | close(d->fd); | |
3298 | if (d->devname) | |
3299 | free(d->devname); | |
0dcecb2e DW |
3300 | if (d->e) |
3301 | free(d->e); | |
ae6aad82 DW |
3302 | free(d); |
3303 | ||
3304 | } | |
1a64be56 | 3305 | |
cdddbdbc DW |
3306 | static void free_imsm_disks(struct intel_super *super) |
3307 | { | |
47ee5a45 | 3308 | struct dl *d; |
cdddbdbc | 3309 | |
47ee5a45 DW |
3310 | while (super->disks) { |
3311 | d = super->disks; | |
cdddbdbc | 3312 | super->disks = d->next; |
ae6aad82 | 3313 | __free_imsm_disk(d); |
cdddbdbc | 3314 | } |
cb82edca AK |
3315 | while (super->disk_mgmt_list) { |
3316 | d = super->disk_mgmt_list; | |
3317 | super->disk_mgmt_list = d->next; | |
3318 | __free_imsm_disk(d); | |
3319 | } | |
47ee5a45 DW |
3320 | while (super->missing) { |
3321 | d = super->missing; | |
3322 | super->missing = d->next; | |
3323 | __free_imsm_disk(d); | |
3324 | } | |
3325 | ||
cdddbdbc DW |
3326 | } |
3327 | ||
9ca2c81c | 3328 | /* free all the pieces hanging off of a super pointer */ |
d23fe947 | 3329 | static void __free_imsm(struct intel_super *super, int free_disks) |
cdddbdbc | 3330 | { |
88654014 LM |
3331 | struct intel_hba *elem, *next; |
3332 | ||
9ca2c81c | 3333 | if (super->buf) { |
949c47a0 | 3334 | free(super->buf); |
9ca2c81c DW |
3335 | super->buf = NULL; |
3336 | } | |
f2f5c343 LM |
3337 | /* unlink capability description */ |
3338 | super->orom = NULL; | |
8e59f3d8 AK |
3339 | if (super->migr_rec_buf) { |
3340 | free(super->migr_rec_buf); | |
3341 | super->migr_rec_buf = NULL; | |
3342 | } | |
d23fe947 DW |
3343 | if (free_disks) |
3344 | free_imsm_disks(super); | |
ba2de7ba | 3345 | free_devlist(super); |
88654014 LM |
3346 | elem = super->hba; |
3347 | while (elem) { | |
3348 | if (elem->path) | |
3349 | free((void *)elem->path); | |
3350 | next = elem->next; | |
3351 | free(elem); | |
3352 | elem = next; | |
88c32bb1 | 3353 | } |
88654014 | 3354 | super->hba = NULL; |
cdddbdbc DW |
3355 | } |
3356 | ||
9ca2c81c DW |
3357 | static void free_imsm(struct intel_super *super) |
3358 | { | |
d23fe947 | 3359 | __free_imsm(super, 1); |
9ca2c81c DW |
3360 | free(super); |
3361 | } | |
cdddbdbc DW |
3362 | |
3363 | static void free_super_imsm(struct supertype *st) | |
3364 | { | |
3365 | struct intel_super *super = st->sb; | |
3366 | ||
3367 | if (!super) | |
3368 | return; | |
3369 | ||
3370 | free_imsm(super); | |
3371 | st->sb = NULL; | |
3372 | } | |
3373 | ||
49133e57 | 3374 | static struct intel_super *alloc_super(void) |
c2c087e6 DW |
3375 | { |
3376 | struct intel_super *super = malloc(sizeof(*super)); | |
3377 | ||
3378 | if (super) { | |
3379 | memset(super, 0, sizeof(*super)); | |
bf5a934a | 3380 | super->current_vol = -1; |
0dcecb2e | 3381 | super->create_offset = ~((__u32 ) 0); |
c2c087e6 | 3382 | } |
c2c087e6 DW |
3383 | return super; |
3384 | } | |
3385 | ||
f0f5a016 LM |
3386 | /* |
3387 | * find and allocate hba and OROM/EFI based on valid fd of RAID component device | |
3388 | */ | |
d424212e | 3389 | static int find_intel_hba_capability(int fd, struct intel_super *super, char *devname) |
f0f5a016 LM |
3390 | { |
3391 | struct sys_dev *hba_name; | |
3392 | int rv = 0; | |
3393 | ||
3394 | if ((fd < 0) || check_env("IMSM_NO_PLATFORM")) { | |
f2f5c343 | 3395 | super->orom = NULL; |
f0f5a016 LM |
3396 | super->hba = NULL; |
3397 | return 0; | |
3398 | } | |
3399 | hba_name = find_disk_attached_hba(fd, NULL); | |
3400 | if (!hba_name) { | |
d424212e | 3401 | if (devname) |
f0f5a016 LM |
3402 | fprintf(stderr, |
3403 | Name ": %s is not attached to Intel(R) RAID controller.\n", | |
d424212e | 3404 | devname); |
f0f5a016 LM |
3405 | return 1; |
3406 | } | |
3407 | rv = attach_hba_to_super(super, hba_name); | |
3408 | if (rv == 2) { | |
d424212e N |
3409 | if (devname) { |
3410 | struct intel_hba *hba = super->hba; | |
f0f5a016 | 3411 | |
f0f5a016 LM |
3412 | fprintf(stderr, Name ": %s is attached to Intel(R) %s RAID " |
3413 | "controller (%s),\n" | |
3414 | " but the container is assigned to Intel(R) " | |
3415 | "%s RAID controller (", | |
d424212e | 3416 | devname, |
f0f5a016 LM |
3417 | hba_name->path, |
3418 | hba_name->pci_id ? : "Err!", | |
3419 | get_sys_dev_type(hba_name->type)); | |
3420 | ||
f0f5a016 LM |
3421 | while (hba) { |
3422 | fprintf(stderr, "%s", hba->pci_id ? : "Err!"); | |
3423 | if (hba->next) | |
3424 | fprintf(stderr, ", "); | |
3425 | hba = hba->next; | |
3426 | } | |
3427 | ||
3428 | fprintf(stderr, ").\n" | |
3429 | " Mixing devices attached to different controllers " | |
3430 | "is not allowed.\n"); | |
3431 | } | |
3432 | free_sys_dev(&hba_name); | |
3433 | return 2; | |
3434 | } | |
f2f5c343 | 3435 | super->orom = find_imsm_capability(hba_name->type); |
f0f5a016 | 3436 | free_sys_dev(&hba_name); |
f2f5c343 LM |
3437 | if (!super->orom) |
3438 | return 3; | |
f0f5a016 LM |
3439 | return 0; |
3440 | } | |
3441 | ||
cdddbdbc | 3442 | #ifndef MDASSEMBLE |
47ee5a45 DW |
3443 | /* find_missing - helper routine for load_super_imsm_all that identifies |
3444 | * disks that have disappeared from the system. This routine relies on | |
3445 | * the mpb being uptodate, which it is at load time. | |
3446 | */ | |
3447 | static int find_missing(struct intel_super *super) | |
3448 | { | |
3449 | int i; | |
3450 | struct imsm_super *mpb = super->anchor; | |
3451 | struct dl *dl; | |
3452 | struct imsm_disk *disk; | |
47ee5a45 DW |
3453 | |
3454 | for (i = 0; i < mpb->num_disks; i++) { | |
3455 | disk = __get_imsm_disk(mpb, i); | |
54c2c1ea | 3456 | dl = serial_to_dl(disk->serial, super); |
47ee5a45 DW |
3457 | if (dl) |
3458 | continue; | |
47ee5a45 DW |
3459 | |
3460 | dl = malloc(sizeof(*dl)); | |
3461 | if (!dl) | |
3462 | return 1; | |
3463 | dl->major = 0; | |
3464 | dl->minor = 0; | |
3465 | dl->fd = -1; | |
3466 | dl->devname = strdup("missing"); | |
3467 | dl->index = i; | |
3468 | serialcpy(dl->serial, disk->serial); | |
3469 | dl->disk = *disk; | |
689c9bf3 | 3470 | dl->e = NULL; |
47ee5a45 DW |
3471 | dl->next = super->missing; |
3472 | super->missing = dl; | |
3473 | } | |
3474 | ||
3475 | return 0; | |
3476 | } | |
3477 | ||
a2b97981 DW |
3478 | static struct intel_disk *disk_list_get(__u8 *serial, struct intel_disk *disk_list) |
3479 | { | |
3480 | struct intel_disk *idisk = disk_list; | |
3481 | ||
3482 | while (idisk) { | |
3483 | if (serialcmp(idisk->disk.serial, serial) == 0) | |
3484 | break; | |
3485 | idisk = idisk->next; | |
3486 | } | |
3487 | ||
3488 | return idisk; | |
3489 | } | |
3490 | ||
3491 | static int __prep_thunderdome(struct intel_super **table, int tbl_size, | |
3492 | struct intel_super *super, | |
3493 | struct intel_disk **disk_list) | |
3494 | { | |
3495 | struct imsm_disk *d = &super->disks->disk; | |
3496 | struct imsm_super *mpb = super->anchor; | |
3497 | int i, j; | |
3498 | ||
3499 | for (i = 0; i < tbl_size; i++) { | |
3500 | struct imsm_super *tbl_mpb = table[i]->anchor; | |
3501 | struct imsm_disk *tbl_d = &table[i]->disks->disk; | |
3502 | ||
3503 | if (tbl_mpb->family_num == mpb->family_num) { | |
3504 | if (tbl_mpb->check_sum == mpb->check_sum) { | |
3505 | dprintf("%s: mpb from %d:%d matches %d:%d\n", | |
3506 | __func__, super->disks->major, | |
3507 | super->disks->minor, | |
3508 | table[i]->disks->major, | |
3509 | table[i]->disks->minor); | |
3510 | break; | |
3511 | } | |
3512 | ||
3513 | if (((is_configured(d) && !is_configured(tbl_d)) || | |
3514 | is_configured(d) == is_configured(tbl_d)) && | |
3515 | tbl_mpb->generation_num < mpb->generation_num) { | |
3516 | /* current version of the mpb is a | |
3517 | * better candidate than the one in | |
3518 | * super_table, but copy over "cross | |
3519 | * generational" status | |
3520 | */ | |
3521 | struct intel_disk *idisk; | |
3522 | ||
3523 | dprintf("%s: mpb from %d:%d replaces %d:%d\n", | |
3524 | __func__, super->disks->major, | |
3525 | super->disks->minor, | |
3526 | table[i]->disks->major, | |
3527 | table[i]->disks->minor); | |
3528 | ||
3529 | idisk = disk_list_get(tbl_d->serial, *disk_list); | |
3530 | if (idisk && is_failed(&idisk->disk)) | |
3531 | tbl_d->status |= FAILED_DISK; | |
3532 | break; | |
3533 | } else { | |
3534 | struct intel_disk *idisk; | |
3535 | struct imsm_disk *disk; | |
3536 | ||
3537 | /* tbl_mpb is more up to date, but copy | |
3538 | * over cross generational status before | |
3539 | * returning | |
3540 | */ | |
3541 | disk = __serial_to_disk(d->serial, mpb, NULL); | |
3542 | if (disk && is_failed(disk)) | |
3543 | d->status |= FAILED_DISK; | |
3544 | ||
3545 | idisk = disk_list_get(d->serial, *disk_list); | |
3546 | if (idisk) { | |
3547 | idisk->owner = i; | |
3548 | if (disk && is_configured(disk)) | |
3549 | idisk->disk.status |= CONFIGURED_DISK; | |
3550 | } | |
3551 | ||
3552 | dprintf("%s: mpb from %d:%d prefer %d:%d\n", | |
3553 | __func__, super->disks->major, | |
3554 | super->disks->minor, | |
3555 | table[i]->disks->major, | |
3556 | table[i]->disks->minor); | |
3557 | ||
3558 | return tbl_size; | |
3559 | } | |
3560 | } | |
3561 | } | |
3562 | ||
3563 | if (i >= tbl_size) | |
3564 | table[tbl_size++] = super; | |
3565 | else | |
3566 | table[i] = super; | |
3567 | ||
3568 | /* update/extend the merged list of imsm_disk records */ | |
3569 | for (j = 0; j < mpb->num_disks; j++) { | |
3570 | struct imsm_disk *disk = __get_imsm_disk(mpb, j); | |
3571 | struct intel_disk *idisk; | |
3572 | ||
3573 | idisk = disk_list_get(disk->serial, *disk_list); | |
3574 | if (idisk) { | |
3575 | idisk->disk.status |= disk->status; | |
3576 | if (is_configured(&idisk->disk) || | |
3577 | is_failed(&idisk->disk)) | |
3578 | idisk->disk.status &= ~(SPARE_DISK); | |
3579 | } else { | |
3580 | idisk = calloc(1, sizeof(*idisk)); | |
3581 | if (!idisk) | |
3582 | return -1; | |
3583 | idisk->owner = IMSM_UNKNOWN_OWNER; | |
3584 | idisk->disk = *disk; | |
3585 | idisk->next = *disk_list; | |
3586 | *disk_list = idisk; | |
3587 | } | |
3588 | ||
3589 | if (serialcmp(idisk->disk.serial, d->serial) == 0) | |
3590 | idisk->owner = i; | |
3591 | } | |
3592 | ||
3593 | return tbl_size; | |
3594 | } | |
3595 | ||
3596 | static struct intel_super * | |
3597 | validate_members(struct intel_super *super, struct intel_disk *disk_list, | |
3598 | const int owner) | |
3599 | { | |
3600 | struct imsm_super *mpb = super->anchor; | |
3601 | int ok_count = 0; | |
3602 | int i; | |
3603 | ||
3604 | for (i = 0; i < mpb->num_disks; i++) { | |
3605 | struct imsm_disk *disk = __get_imsm_disk(mpb, i); | |
3606 | struct intel_disk *idisk; | |
3607 | ||
3608 | idisk = disk_list_get(disk->serial, disk_list); | |
3609 | if (idisk) { | |
3610 | if (idisk->owner == owner || | |
3611 | idisk->owner == IMSM_UNKNOWN_OWNER) | |
3612 | ok_count++; | |
3613 | else | |
3614 | dprintf("%s: '%.16s' owner %d != %d\n", | |
3615 | __func__, disk->serial, idisk->owner, | |
3616 | owner); | |
3617 | } else { | |
3618 | dprintf("%s: unknown disk %x [%d]: %.16s\n", | |
3619 | __func__, __le32_to_cpu(mpb->family_num), i, | |
3620 | disk->serial); | |
3621 | break; | |
3622 | } | |
3623 | } | |
3624 | ||
3625 | if (ok_count == mpb->num_disks) | |
3626 | return super; | |
3627 | return NULL; | |
3628 | } | |
3629 | ||
3630 | static void show_conflicts(__u32 family_num, struct intel_super *super_list) | |
3631 | { | |
3632 | struct intel_super *s; | |
3633 | ||
3634 | for (s = super_list; s; s = s->next) { | |
3635 | if (family_num != s->anchor->family_num) | |
3636 | continue; | |
3637 | fprintf(stderr, "Conflict, offlining family %#x on '%s'\n", | |
3638 | __le32_to_cpu(family_num), s->disks->devname); | |
3639 | } | |
3640 | } | |
3641 | ||
3642 | static struct intel_super * | |
3643 | imsm_thunderdome(struct intel_super **super_list, int len) | |
3644 | { | |
3645 | struct intel_super *super_table[len]; | |
3646 | struct intel_disk *disk_list = NULL; | |
3647 | struct intel_super *champion, *spare; | |
3648 | struct intel_super *s, **del; | |
3649 | int tbl_size = 0; | |
3650 | int conflict; | |
3651 | int i; | |
3652 | ||
3653 | memset(super_table, 0, sizeof(super_table)); | |
3654 | for (s = *super_list; s; s = s->next) | |
3655 | tbl_size = __prep_thunderdome(super_table, tbl_size, s, &disk_list); | |
3656 | ||
3657 | for (i = 0; i < tbl_size; i++) { | |
3658 | struct imsm_disk *d; | |
3659 | struct intel_disk *idisk; | |
3660 | struct imsm_super *mpb = super_table[i]->anchor; | |
3661 | ||
3662 | s = super_table[i]; | |
3663 | d = &s->disks->disk; | |
3664 | ||
3665 | /* 'd' must appear in merged disk list for its | |
3666 | * configuration to be valid | |
3667 | */ | |
3668 | idisk = disk_list_get(d->serial, disk_list); | |
3669 | if (idisk && idisk->owner == i) | |
3670 | s = validate_members(s, disk_list, i); | |
3671 | else | |
3672 | s = NULL; | |
3673 | ||
3674 | if (!s) | |
3675 | dprintf("%s: marking family: %#x from %d:%d offline\n", | |
3676 | __func__, mpb->family_num, | |
3677 | super_table[i]->disks->major, | |
3678 | super_table[i]->disks->minor); | |
3679 | super_table[i] = s; | |
3680 | } | |
3681 | ||
3682 | /* This is where the mdadm implementation differs from the Windows | |
3683 | * driver which has no strict concept of a container. We can only | |
3684 | * assemble one family from a container, so when returning a prodigal | |
3685 | * array member to this system the code will not be able to disambiguate | |
3686 | * the container contents that should be assembled ("foreign" versus | |
3687 | * "local"). It requires user intervention to set the orig_family_num | |
3688 | * to a new value to establish a new container. The Windows driver in | |
3689 | * this situation fixes up the volume name in place and manages the | |
3690 | * foreign array as an independent entity. | |
3691 | */ | |
3692 | s = NULL; | |
3693 | spare = NULL; | |
3694 | conflict = 0; | |
3695 | for (i = 0; i < tbl_size; i++) { | |
3696 | struct intel_super *tbl_ent = super_table[i]; | |
3697 | int is_spare = 0; | |
3698 | ||
3699 | if (!tbl_ent) | |
3700 | continue; | |
3701 | ||
3702 | if (tbl_ent->anchor->num_raid_devs == 0) { | |
3703 | spare = tbl_ent; | |
3704 | is_spare = 1; | |
3705 | } | |
3706 | ||
3707 | if (s && !is_spare) { | |
3708 | show_conflicts(tbl_ent->anchor->family_num, *super_list); | |
3709 | conflict++; | |
3710 | } else if (!s && !is_spare) | |
3711 | s = tbl_ent; | |
3712 | } | |
3713 | ||
3714 | if (!s) | |
3715 | s = spare; | |
3716 | if (!s) { | |
3717 | champion = NULL; | |
3718 | goto out; | |
3719 | } | |
3720 | champion = s; | |
3721 | ||
3722 | if (conflict) | |
3723 | fprintf(stderr, "Chose family %#x on '%s', " | |
3724 | "assemble conflicts to new container with '--update=uuid'\n", | |
3725 | __le32_to_cpu(s->anchor->family_num), s->disks->devname); | |
3726 | ||
3727 | /* collect all dl's onto 'champion', and update them to | |
3728 | * champion's version of the status | |
3729 | */ | |
3730 | for (s = *super_list; s; s = s->next) { | |
3731 | struct imsm_super *mpb = champion->anchor; | |
3732 | struct dl *dl = s->disks; | |
3733 | ||
3734 | if (s == champion) | |
3735 | continue; | |
3736 | ||
3737 | for (i = 0; i < mpb->num_disks; i++) { | |
3738 | struct imsm_disk *disk; | |
3739 | ||
3740 | disk = __serial_to_disk(dl->serial, mpb, &dl->index); | |
3741 | if (disk) { | |
3742 | dl->disk = *disk; | |
3743 | /* only set index on disks that are a member of | |
3744 | * a populated contianer, i.e. one with | |
3745 | * raid_devs | |
3746 | */ | |
3747 | if (is_failed(&dl->disk)) | |
3748 | dl->index = -2; | |
3749 | else if (is_spare(&dl->disk)) | |
3750 | dl->index = -1; | |
3751 | break; | |
3752 | } | |
3753 | } | |
3754 | ||
3755 | if (i >= mpb->num_disks) { | |
3756 | struct intel_disk *idisk; | |
3757 | ||
3758 | idisk = disk_list_get(dl->serial, disk_list); | |
ecf408e9 | 3759 | if (idisk && is_spare(&idisk->disk) && |
a2b97981 DW |
3760 | !is_failed(&idisk->disk) && !is_configured(&idisk->disk)) |
3761 | dl->index = -1; | |
3762 | else { | |
3763 | dl->index = -2; | |
3764 | continue; | |
3765 | } | |
3766 | } | |
3767 | ||
3768 | dl->next = champion->disks; | |
3769 | champion->disks = dl; | |
3770 | s->disks = NULL; | |
3771 | } | |
3772 | ||
3773 | /* delete 'champion' from super_list */ | |
3774 | for (del = super_list; *del; ) { | |
3775 | if (*del == champion) { | |
3776 | *del = (*del)->next; | |
3777 | break; | |
3778 | } else | |
3779 | del = &(*del)->next; | |
3780 | } | |
3781 | champion->next = NULL; | |
3782 | ||
3783 | out: | |
3784 | while (disk_list) { | |
3785 | struct intel_disk *idisk = disk_list; | |
3786 | ||
3787 | disk_list = disk_list->next; | |
3788 | free(idisk); | |
3789 | } | |
3790 | ||
3791 | return champion; | |
3792 | } | |
3793 | ||
cdddbdbc | 3794 | static int load_super_imsm_all(struct supertype *st, int fd, void **sbp, |
e1902a7b | 3795 | char *devname) |
cdddbdbc DW |
3796 | { |
3797 | struct mdinfo *sra; | |
a2b97981 DW |
3798 | struct intel_super *super_list = NULL; |
3799 | struct intel_super *super = NULL; | |
db575f3b | 3800 | int devnum = fd2devnum(fd); |
a2b97981 | 3801 | struct mdinfo *sd; |
db575f3b | 3802 | int retry; |
a2b97981 DW |
3803 | int err = 0; |
3804 | int i; | |
dab4a513 DW |
3805 | |
3806 | /* check if 'fd' an opened container */ | |
b526e52d | 3807 | sra = sysfs_read(fd, 0, GET_LEVEL|GET_VERSION|GET_DEVS|GET_STATE); |
cdddbdbc DW |
3808 | if (!sra) |
3809 | return 1; | |
3810 | ||
3811 | if (sra->array.major_version != -1 || | |
3812 | sra->array.minor_version != -2 || | |
1602d52c AW |
3813 | strcmp(sra->text_version, "imsm") != 0) { |
3814 | err = 1; | |
3815 | goto error; | |
3816 | } | |
a2b97981 DW |
3817 | /* load all mpbs */ |
3818 | for (sd = sra->devs, i = 0; sd; sd = sd->next, i++) { | |
49133e57 | 3819 | struct intel_super *s = alloc_super(); |
7a6ecd55 | 3820 | char nm[32]; |
a2b97981 | 3821 | int dfd; |
f2f5c343 | 3822 | int rv; |
a2b97981 DW |
3823 | |
3824 | err = 1; | |
3825 | if (!s) | |
3826 | goto error; | |
3827 | s->next = super_list; | |
3828 | super_list = s; | |
cdddbdbc | 3829 | |
a2b97981 | 3830 | err = 2; |
cdddbdbc | 3831 | sprintf(nm, "%d:%d", sd->disk.major, sd->disk.minor); |
e1902a7b | 3832 | dfd = dev_open(nm, O_RDWR); |
a2b97981 DW |
3833 | if (dfd < 0) |
3834 | goto error; | |
3835 | ||
d424212e | 3836 | rv = find_intel_hba_capability(dfd, s, devname); |
f2f5c343 LM |
3837 | /* no orom/efi or non-intel hba of the disk */ |
3838 | if (rv != 0) | |
3839 | goto error; | |
3840 | ||
e1902a7b | 3841 | err = load_and_parse_mpb(dfd, s, NULL, 1); |
db575f3b DW |
3842 | |
3843 | /* retry the load if we might have raced against mdmon */ | |
a2b97981 | 3844 | if (err == 3 && mdmon_running(devnum)) |
db575f3b DW |
3845 | for (retry = 0; retry < 3; retry++) { |
3846 | usleep(3000); | |
e1902a7b | 3847 | err = load_and_parse_mpb(dfd, s, NULL, 1); |
a2b97981 | 3848 | if (err != 3) |
db575f3b DW |
3849 | break; |
3850 | } | |
a2b97981 DW |
3851 | if (err) |
3852 | goto error; | |
cdddbdbc DW |
3853 | } |
3854 | ||
a2b97981 DW |
3855 | /* all mpbs enter, maybe one leaves */ |
3856 | super = imsm_thunderdome(&super_list, i); | |
3857 | if (!super) { | |
3858 | err = 1; | |
3859 | goto error; | |
cdddbdbc DW |
3860 | } |
3861 | ||
47ee5a45 DW |
3862 | if (find_missing(super) != 0) { |
3863 | free_imsm(super); | |
a2b97981 DW |
3864 | err = 2; |
3865 | goto error; | |
47ee5a45 | 3866 | } |
8e59f3d8 AK |
3867 | |
3868 | /* load migration record */ | |
3869 | err = load_imsm_migr_rec(super, NULL); | |
3870 | if (err) { | |
3871 | err = 4; | |
3872 | goto error; | |
3873 | } | |
e2f41b2c AK |
3874 | |
3875 | /* Check migration compatibility */ | |
3876 | if (check_mpb_migr_compatibility(super) != 0) { | |
3877 | fprintf(stderr, Name ": Unsupported migration detected"); | |
3878 | if (devname) | |
3879 | fprintf(stderr, " on %s\n", devname); | |
3880 | else | |
3881 | fprintf(stderr, " (IMSM).\n"); | |
3882 | ||
3883 | err = 5; | |
3884 | goto error; | |
3885 | } | |
3886 | ||
a2b97981 DW |
3887 | err = 0; |
3888 | ||
3889 | error: | |
3890 | while (super_list) { | |
3891 | struct intel_super *s = super_list; | |
3892 | ||
3893 | super_list = super_list->next; | |
3894 | free_imsm(s); | |
3895 | } | |
1602d52c | 3896 | sysfs_free(sra); |
a2b97981 DW |
3897 | |
3898 | if (err) | |
3899 | return err; | |
f7e7067b | 3900 | |
cdddbdbc | 3901 | *sbp = super; |
db575f3b | 3902 | st->container_dev = devnum; |
a2b97981 | 3903 | if (err == 0 && st->ss == NULL) { |
bf5a934a | 3904 | st->ss = &super_imsm; |
cdddbdbc DW |
3905 | st->minor_version = 0; |
3906 | st->max_devs = IMSM_MAX_DEVICES; | |
3907 | } | |
cdddbdbc DW |
3908 | return 0; |
3909 | } | |
2b959fbf N |
3910 | |
3911 | static int load_container_imsm(struct supertype *st, int fd, char *devname) | |
3912 | { | |
3913 | return load_super_imsm_all(st, fd, &st->sb, devname); | |
3914 | } | |
cdddbdbc DW |
3915 | #endif |
3916 | ||
3917 | static int load_super_imsm(struct supertype *st, int fd, char *devname) | |
3918 | { | |
3919 | struct intel_super *super; | |
3920 | int rv; | |
3921 | ||
691c6ee1 N |
3922 | if (test_partition(fd)) |
3923 | /* IMSM not allowed on partitions */ | |
3924 | return 1; | |
3925 | ||
37424f13 DW |
3926 | free_super_imsm(st); |
3927 | ||
49133e57 | 3928 | super = alloc_super(); |
cdddbdbc DW |
3929 | if (!super) { |
3930 | fprintf(stderr, | |
3931 | Name ": malloc of %zu failed.\n", | |
3932 | sizeof(*super)); | |
3933 | return 1; | |
3934 | } | |
ea2bc72b LM |
3935 | /* Load hba and capabilities if they exist. |
3936 | * But do not preclude loading metadata in case capabilities or hba are | |
3937 | * non-compliant and ignore_hw_compat is set. | |
3938 | */ | |
d424212e | 3939 | rv = find_intel_hba_capability(fd, super, devname); |
f2f5c343 | 3940 | /* no orom/efi or non-intel hba of the disk */ |
ea2bc72b | 3941 | if ((rv != 0) && (st->ignore_hw_compat == 0)) { |
f2f5c343 LM |
3942 | if (devname) |
3943 | fprintf(stderr, | |
3944 | Name ": No OROM/EFI properties for %s\n", devname); | |
3945 | free_imsm(super); | |
3946 | return 2; | |
3947 | } | |
a2b97981 | 3948 | rv = load_and_parse_mpb(fd, super, devname, 0); |
cdddbdbc DW |
3949 | |
3950 | if (rv) { | |
3951 | if (devname) | |
3952 | fprintf(stderr, | |
3953 | Name ": Failed to load all information " | |
3954 | "sections on %s\n", devname); | |
3955 | free_imsm(super); | |
3956 | return rv; | |
3957 | } | |
3958 | ||
3959 | st->sb = super; | |
3960 | if (st->ss == NULL) { | |
3961 | st->ss = &super_imsm; | |
3962 | st->minor_version = 0; | |
3963 | st->max_devs = IMSM_MAX_DEVICES; | |
3964 | } | |
8e59f3d8 AK |
3965 | |
3966 | /* load migration record */ | |
2e062e82 AK |
3967 | if (load_imsm_migr_rec(super, NULL) == 0) { |
3968 | /* Check for unsupported migration features */ | |
3969 | if (check_mpb_migr_compatibility(super) != 0) { | |
3970 | fprintf(stderr, | |
3971 | Name ": Unsupported migration detected"); | |
3972 | if (devname) | |
3973 | fprintf(stderr, " on %s\n", devname); | |
3974 | else | |
3975 | fprintf(stderr, " (IMSM).\n"); | |
3976 | return 3; | |
3977 | } | |
e2f41b2c AK |
3978 | } |
3979 | ||
cdddbdbc DW |
3980 | return 0; |
3981 | } | |
3982 | ||
ef6ffade DW |
3983 | static __u16 info_to_blocks_per_strip(mdu_array_info_t *info) |
3984 | { | |
3985 | if (info->level == 1) | |
3986 | return 128; | |
3987 | return info->chunk_size >> 9; | |
3988 | } | |
3989 | ||
ff596308 | 3990 | static __u32 info_to_num_data_stripes(mdu_array_info_t *info, int num_domains) |
ef6ffade DW |
3991 | { |
3992 | __u32 num_stripes; | |
3993 | ||
3994 | num_stripes = (info->size * 2) / info_to_blocks_per_strip(info); | |
ff596308 | 3995 | num_stripes /= num_domains; |
ef6ffade DW |
3996 | |
3997 | return num_stripes; | |
3998 | } | |
3999 | ||
fcfd9599 DW |
4000 | static __u32 info_to_blocks_per_member(mdu_array_info_t *info) |
4001 | { | |
4025c288 DW |
4002 | if (info->level == 1) |
4003 | return info->size * 2; | |
4004 | else | |
4005 | return (info->size * 2) & ~(info_to_blocks_per_strip(info) - 1); | |
fcfd9599 DW |
4006 | } |
4007 | ||
4d1313e9 DW |
4008 | static void imsm_update_version_info(struct intel_super *super) |
4009 | { | |
4010 | /* update the version and attributes */ | |
4011 | struct imsm_super *mpb = super->anchor; | |
4012 | char *version; | |
4013 | struct imsm_dev *dev; | |
4014 | struct imsm_map *map; | |
4015 | int i; | |
4016 | ||
4017 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
4018 | dev = get_imsm_dev(super, i); | |
4019 | map = get_imsm_map(dev, 0); | |
4020 | if (__le32_to_cpu(dev->size_high) > 0) | |
4021 | mpb->attributes |= MPB_ATTRIB_2TB; | |
4022 | ||
4023 | /* FIXME detect when an array spans a port multiplier */ | |
4024 | #if 0 | |
4025 | mpb->attributes |= MPB_ATTRIB_PM; | |
4026 | #endif | |
4027 | ||
4028 | if (mpb->num_raid_devs > 1 || | |
4029 | mpb->attributes != MPB_ATTRIB_CHECKSUM_VERIFY) { | |
4030 | version = MPB_VERSION_ATTRIBS; | |
4031 | switch (get_imsm_raid_level(map)) { | |
4032 | case 0: mpb->attributes |= MPB_ATTRIB_RAID0; break; | |
4033 | case 1: mpb->attributes |= MPB_ATTRIB_RAID1; break; | |
4034 | case 10: mpb->attributes |= MPB_ATTRIB_RAID10; break; | |
4035 | case 5: mpb->attributes |= MPB_ATTRIB_RAID5; break; | |
4036 | } | |
4037 | } else { | |
4038 | if (map->num_members >= 5) | |
4039 | version = MPB_VERSION_5OR6_DISK_ARRAY; | |
4040 | else if (dev->status == DEV_CLONE_N_GO) | |
4041 | version = MPB_VERSION_CNG; | |
4042 | else if (get_imsm_raid_level(map) == 5) | |
4043 | version = MPB_VERSION_RAID5; | |
4044 | else if (map->num_members >= 3) | |
4045 | version = MPB_VERSION_3OR4_DISK_ARRAY; | |
4046 | else if (get_imsm_raid_level(map) == 1) | |
4047 | version = MPB_VERSION_RAID1; | |
4048 | else | |
4049 | version = MPB_VERSION_RAID0; | |
4050 | } | |
4051 | strcpy(((char *) mpb->sig) + strlen(MPB_SIGNATURE), version); | |
4052 | } | |
4053 | } | |
4054 | ||
aa534678 DW |
4055 | static int check_name(struct intel_super *super, char *name, int quiet) |
4056 | { | |
4057 | struct imsm_super *mpb = super->anchor; | |
4058 | char *reason = NULL; | |
4059 | int i; | |
4060 | ||
4061 | if (strlen(name) > MAX_RAID_SERIAL_LEN) | |
4062 | reason = "must be 16 characters or less"; | |
4063 | ||
4064 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
4065 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
4066 | ||
4067 | if (strncmp((char *) dev->volume, name, MAX_RAID_SERIAL_LEN) == 0) { | |
4068 | reason = "already exists"; | |
4069 | break; | |
4070 | } | |
4071 | } | |
4072 | ||
4073 | if (reason && !quiet) | |
4074 | fprintf(stderr, Name ": imsm volume name %s\n", reason); | |
4075 | ||
4076 | return !reason; | |
4077 | } | |
4078 | ||
8b353278 DW |
4079 | static int init_super_imsm_volume(struct supertype *st, mdu_array_info_t *info, |
4080 | unsigned long long size, char *name, | |
4081 | char *homehost, int *uuid) | |
cdddbdbc | 4082 | { |
c2c087e6 DW |
4083 | /* We are creating a volume inside a pre-existing container. |
4084 | * so st->sb is already set. | |
4085 | */ | |
4086 | struct intel_super *super = st->sb; | |
949c47a0 | 4087 | struct imsm_super *mpb = super->anchor; |
ba2de7ba | 4088 | struct intel_dev *dv; |
c2c087e6 DW |
4089 | struct imsm_dev *dev; |
4090 | struct imsm_vol *vol; | |
4091 | struct imsm_map *map; | |
4092 | int idx = mpb->num_raid_devs; | |
4093 | int i; | |
4094 | unsigned long long array_blocks; | |
2c092cad | 4095 | size_t size_old, size_new; |
ff596308 | 4096 | __u32 num_data_stripes; |
cdddbdbc | 4097 | |
88c32bb1 | 4098 | if (super->orom && mpb->num_raid_devs >= super->orom->vpa) { |
c2c087e6 | 4099 | fprintf(stderr, Name": This imsm-container already has the " |
88c32bb1 | 4100 | "maximum of %d volumes\n", super->orom->vpa); |
c2c087e6 DW |
4101 | return 0; |
4102 | } | |
4103 | ||
2c092cad DW |
4104 | /* ensure the mpb is large enough for the new data */ |
4105 | size_old = __le32_to_cpu(mpb->mpb_size); | |
4106 | size_new = disks_to_mpb_size(info->nr_disks); | |
4107 | if (size_new > size_old) { | |
4108 | void *mpb_new; | |
4109 | size_t size_round = ROUND_UP(size_new, 512); | |
4110 | ||
4111 | if (posix_memalign(&mpb_new, 512, size_round) != 0) { | |
4112 | fprintf(stderr, Name": could not allocate new mpb\n"); | |
4113 | return 0; | |
4114 | } | |
8e59f3d8 AK |
4115 | if (posix_memalign(&super->migr_rec_buf, 512, 512) != 0) { |
4116 | fprintf(stderr, Name | |
4117 | ": %s could not allocate migr_rec buffer\n", | |
4118 | __func__); | |
4119 | free(super->buf); | |
4120 | free(super); | |
4121 | return 0; | |
4122 | } | |
2c092cad DW |
4123 | memcpy(mpb_new, mpb, size_old); |
4124 | free(mpb); | |
4125 | mpb = mpb_new; | |
949c47a0 | 4126 | super->anchor = mpb_new; |
2c092cad DW |
4127 | mpb->mpb_size = __cpu_to_le32(size_new); |
4128 | memset(mpb_new + size_old, 0, size_round - size_old); | |
4129 | } | |
bf5a934a | 4130 | super->current_vol = idx; |
d23fe947 DW |
4131 | /* when creating the first raid device in this container set num_disks |
4132 | * to zero, i.e. delete this spare and add raid member devices in | |
4133 | * add_to_super_imsm_volume() | |
4134 | */ | |
4135 | if (super->current_vol == 0) | |
4136 | mpb->num_disks = 0; | |
5a038140 | 4137 | |
aa534678 DW |
4138 | if (!check_name(super, name, 0)) |
4139 | return 0; | |
ba2de7ba DW |
4140 | dv = malloc(sizeof(*dv)); |
4141 | if (!dv) { | |
4142 | fprintf(stderr, Name ": failed to allocate device list entry\n"); | |
4143 | return 0; | |
4144 | } | |
1a2487c2 | 4145 | dev = calloc(1, sizeof(*dev) + sizeof(__u32) * (info->raid_disks - 1)); |
949c47a0 | 4146 | if (!dev) { |
ba2de7ba | 4147 | free(dv); |
949c47a0 DW |
4148 | fprintf(stderr, Name": could not allocate raid device\n"); |
4149 | return 0; | |
4150 | } | |
1a2487c2 | 4151 | |
c2c087e6 | 4152 | strncpy((char *) dev->volume, name, MAX_RAID_SERIAL_LEN); |
03bcbc65 DW |
4153 | if (info->level == 1) |
4154 | array_blocks = info_to_blocks_per_member(info); | |
4155 | else | |
4156 | array_blocks = calc_array_size(info->level, info->raid_disks, | |
4157 | info->layout, info->chunk_size, | |
4158 | info->size*2); | |
979d38be DW |
4159 | /* round array size down to closest MB */ |
4160 | array_blocks = (array_blocks >> SECT_PER_MB_SHIFT) << SECT_PER_MB_SHIFT; | |
4161 | ||
c2c087e6 DW |
4162 | dev->size_low = __cpu_to_le32((__u32) array_blocks); |
4163 | dev->size_high = __cpu_to_le32((__u32) (array_blocks >> 32)); | |
1a2487c2 | 4164 | dev->status = (DEV_READ_COALESCING | DEV_WRITE_COALESCING); |
c2c087e6 DW |
4165 | vol = &dev->vol; |
4166 | vol->migr_state = 0; | |
1484e727 | 4167 | set_migr_type(dev, MIGR_INIT); |
c2c087e6 | 4168 | vol->dirty = 0; |
f8f603f1 | 4169 | vol->curr_migr_unit = 0; |
a965f303 | 4170 | map = get_imsm_map(dev, 0); |
0dcecb2e | 4171 | map->pba_of_lba0 = __cpu_to_le32(super->create_offset); |
fcfd9599 | 4172 | map->blocks_per_member = __cpu_to_le32(info_to_blocks_per_member(info)); |
ef6ffade | 4173 | map->blocks_per_strip = __cpu_to_le16(info_to_blocks_per_strip(info)); |
0556e1a2 | 4174 | map->failed_disk_num = ~0; |
c2c087e6 DW |
4175 | map->map_state = info->level ? IMSM_T_STATE_UNINITIALIZED : |
4176 | IMSM_T_STATE_NORMAL; | |
252d23c0 | 4177 | map->ddf = 1; |
ef6ffade DW |
4178 | |
4179 | if (info->level == 1 && info->raid_disks > 2) { | |
38950822 AW |
4180 | free(dev); |
4181 | free(dv); | |
ef6ffade DW |
4182 | fprintf(stderr, Name": imsm does not support more than 2 disks" |
4183 | "in a raid1 volume\n"); | |
4184 | return 0; | |
4185 | } | |
81062a36 DW |
4186 | |
4187 | map->raid_level = info->level; | |
4d1313e9 | 4188 | if (info->level == 10) { |
c2c087e6 | 4189 | map->raid_level = 1; |
4d1313e9 | 4190 | map->num_domains = info->raid_disks / 2; |
81062a36 DW |
4191 | } else if (info->level == 1) |
4192 | map->num_domains = info->raid_disks; | |
4193 | else | |
ff596308 | 4194 | map->num_domains = 1; |
81062a36 | 4195 | |
ff596308 DW |
4196 | num_data_stripes = info_to_num_data_stripes(info, map->num_domains); |
4197 | map->num_data_stripes = __cpu_to_le32(num_data_stripes); | |
ef6ffade | 4198 | |
c2c087e6 DW |
4199 | map->num_members = info->raid_disks; |
4200 | for (i = 0; i < map->num_members; i++) { | |
4201 | /* initialized in add_to_super */ | |
4eb26970 | 4202 | set_imsm_ord_tbl_ent(map, i, IMSM_ORD_REBUILD); |
c2c087e6 | 4203 | } |
949c47a0 | 4204 | mpb->num_raid_devs++; |
ba2de7ba DW |
4205 | |
4206 | dv->dev = dev; | |
4207 | dv->index = super->current_vol; | |
4208 | dv->next = super->devlist; | |
4209 | super->devlist = dv; | |
c2c087e6 | 4210 | |
4d1313e9 DW |
4211 | imsm_update_version_info(super); |
4212 | ||
c2c087e6 | 4213 | return 1; |
cdddbdbc DW |
4214 | } |
4215 | ||
bf5a934a DW |
4216 | static int init_super_imsm(struct supertype *st, mdu_array_info_t *info, |
4217 | unsigned long long size, char *name, | |
4218 | char *homehost, int *uuid) | |
4219 | { | |
4220 | /* This is primarily called by Create when creating a new array. | |
4221 | * We will then get add_to_super called for each component, and then | |
4222 | * write_init_super called to write it out to each device. | |
4223 | * For IMSM, Create can create on fresh devices or on a pre-existing | |
4224 | * array. | |
4225 | * To create on a pre-existing array a different method will be called. | |
4226 | * This one is just for fresh drives. | |
4227 | */ | |
4228 | struct intel_super *super; | |
4229 | struct imsm_super *mpb; | |
4230 | size_t mpb_size; | |
4d1313e9 | 4231 | char *version; |
bf5a934a | 4232 | |
bf5a934a | 4233 | if (st->sb) |
e683ca88 DW |
4234 | return init_super_imsm_volume(st, info, size, name, homehost, uuid); |
4235 | ||
4236 | if (info) | |
4237 | mpb_size = disks_to_mpb_size(info->nr_disks); | |
4238 | else | |
4239 | mpb_size = 512; | |
bf5a934a | 4240 | |
49133e57 | 4241 | super = alloc_super(); |
e683ca88 | 4242 | if (super && posix_memalign(&super->buf, 512, mpb_size) != 0) { |
bf5a934a | 4243 | free(super); |
e683ca88 DW |
4244 | super = NULL; |
4245 | } | |
4246 | if (!super) { | |
4247 | fprintf(stderr, Name | |
4248 | ": %s could not allocate superblock\n", __func__); | |
bf5a934a DW |
4249 | return 0; |
4250 | } | |
8e59f3d8 AK |
4251 | if (posix_memalign(&super->migr_rec_buf, 512, 512) != 0) { |
4252 | fprintf(stderr, Name | |
4253 | ": %s could not allocate migr_rec buffer\n", __func__); | |
4254 | free(super->buf); | |
4255 | free(super); | |
4256 | return 0; | |
4257 | } | |
e683ca88 | 4258 | memset(super->buf, 0, mpb_size); |
ef649044 | 4259 | mpb = super->buf; |
e683ca88 DW |
4260 | mpb->mpb_size = __cpu_to_le32(mpb_size); |
4261 | st->sb = super; | |
4262 | ||
4263 | if (info == NULL) { | |
4264 | /* zeroing superblock */ | |
4265 | return 0; | |
4266 | } | |
bf5a934a | 4267 | |
4d1313e9 DW |
4268 | mpb->attributes = MPB_ATTRIB_CHECKSUM_VERIFY; |
4269 | ||
4270 | version = (char *) mpb->sig; | |
4271 | strcpy(version, MPB_SIGNATURE); | |
4272 | version += strlen(MPB_SIGNATURE); | |
4273 | strcpy(version, MPB_VERSION_RAID0); | |
bf5a934a | 4274 | |
bf5a934a DW |
4275 | return 1; |
4276 | } | |
4277 | ||
0e600426 | 4278 | #ifndef MDASSEMBLE |
f20c3968 | 4279 | static int add_to_super_imsm_volume(struct supertype *st, mdu_disk_info_t *dk, |
bf5a934a DW |
4280 | int fd, char *devname) |
4281 | { | |
4282 | struct intel_super *super = st->sb; | |
d23fe947 | 4283 | struct imsm_super *mpb = super->anchor; |
bf5a934a DW |
4284 | struct dl *dl; |
4285 | struct imsm_dev *dev; | |
4286 | struct imsm_map *map; | |
4eb26970 | 4287 | int slot; |
bf5a934a | 4288 | |
949c47a0 | 4289 | dev = get_imsm_dev(super, super->current_vol); |
a965f303 | 4290 | map = get_imsm_map(dev, 0); |
bf5a934a | 4291 | |
208933a7 N |
4292 | if (! (dk->state & (1<<MD_DISK_SYNC))) { |
4293 | fprintf(stderr, Name ": %s: Cannot add spare devices to IMSM volume\n", | |
4294 | devname); | |
4295 | return 1; | |
4296 | } | |
4297 | ||
efb30e7f DW |
4298 | if (fd == -1) { |
4299 | /* we're doing autolayout so grab the pre-marked (in | |
4300 | * validate_geometry) raid_disk | |
4301 | */ | |
4302 | for (dl = super->disks; dl; dl = dl->next) | |
4303 | if (dl->raiddisk == dk->raid_disk) | |
4304 | break; | |
4305 | } else { | |
4306 | for (dl = super->disks; dl ; dl = dl->next) | |
4307 | if (dl->major == dk->major && | |
4308 | dl->minor == dk->minor) | |
4309 | break; | |
4310 | } | |
d23fe947 | 4311 | |
208933a7 N |
4312 | if (!dl) { |
4313 | fprintf(stderr, Name ": %s is not a member of the same container\n", devname); | |
f20c3968 | 4314 | return 1; |
208933a7 | 4315 | } |
bf5a934a | 4316 | |
d23fe947 DW |
4317 | /* add a pristine spare to the metadata */ |
4318 | if (dl->index < 0) { | |
4319 | dl->index = super->anchor->num_disks; | |
4320 | super->anchor->num_disks++; | |
4321 | } | |
4eb26970 DW |
4322 | /* Check the device has not already been added */ |
4323 | slot = get_imsm_disk_slot(map, dl->index); | |
4324 | if (slot >= 0 && | |
98130f40 | 4325 | (get_imsm_ord_tbl_ent(dev, slot, -1) & IMSM_ORD_REBUILD) == 0) { |
4eb26970 DW |
4326 | fprintf(stderr, Name ": %s has been included in this array twice\n", |
4327 | devname); | |
4328 | return 1; | |
4329 | } | |
be73972f | 4330 | set_imsm_ord_tbl_ent(map, dk->number, dl->index); |
ee5aad5a | 4331 | dl->disk.status = CONFIGURED_DISK; |
d23fe947 DW |
4332 | |
4333 | /* if we are creating the first raid device update the family number */ | |
4334 | if (super->current_vol == 0) { | |
4335 | __u32 sum; | |
4336 | struct imsm_dev *_dev = __get_imsm_dev(mpb, 0); | |
4337 | struct imsm_disk *_disk = __get_imsm_disk(mpb, dl->index); | |
4338 | ||
791b666a AW |
4339 | if (!_dev || !_disk) { |
4340 | fprintf(stderr, Name ": BUG mpb setup error\n"); | |
4341 | return 1; | |
4342 | } | |
d23fe947 DW |
4343 | *_dev = *dev; |
4344 | *_disk = dl->disk; | |
148acb7b DW |
4345 | sum = random32(); |
4346 | sum += __gen_imsm_checksum(mpb); | |
d23fe947 | 4347 | mpb->family_num = __cpu_to_le32(sum); |
148acb7b | 4348 | mpb->orig_family_num = mpb->family_num; |
d23fe947 | 4349 | } |
f20c3968 DW |
4350 | |
4351 | return 0; | |
bf5a934a DW |
4352 | } |
4353 | ||
88654014 | 4354 | |
f20c3968 | 4355 | static int add_to_super_imsm(struct supertype *st, mdu_disk_info_t *dk, |
88654014 | 4356 | int fd, char *devname) |
cdddbdbc | 4357 | { |
c2c087e6 | 4358 | struct intel_super *super = st->sb; |
c2c087e6 DW |
4359 | struct dl *dd; |
4360 | unsigned long long size; | |
f2f27e63 | 4361 | __u32 id; |
c2c087e6 DW |
4362 | int rv; |
4363 | struct stat stb; | |
4364 | ||
88654014 LM |
4365 | /* If we are on an RAID enabled platform check that the disk is |
4366 | * attached to the raid controller. | |
4367 | * We do not need to test disks attachment for container based additions, | |
4368 | * they shall be already tested when container was created/assembled. | |
88c32bb1 | 4369 | */ |
d424212e | 4370 | rv = find_intel_hba_capability(fd, super, devname); |
f2f5c343 | 4371 | /* no orom/efi or non-intel hba of the disk */ |
f0f5a016 LM |
4372 | if (rv != 0) { |
4373 | dprintf("capability: %p fd: %d ret: %d\n", | |
4374 | super->orom, fd, rv); | |
4375 | return 1; | |
88c32bb1 DW |
4376 | } |
4377 | ||
f20c3968 DW |
4378 | if (super->current_vol >= 0) |
4379 | return add_to_super_imsm_volume(st, dk, fd, devname); | |
bf5a934a | 4380 | |
c2c087e6 DW |
4381 | fstat(fd, &stb); |
4382 | dd = malloc(sizeof(*dd)); | |
b9f594fe | 4383 | if (!dd) { |
c2c087e6 DW |
4384 | fprintf(stderr, |
4385 | Name ": malloc failed %s:%d.\n", __func__, __LINE__); | |
f20c3968 | 4386 | return 1; |
c2c087e6 DW |
4387 | } |
4388 | memset(dd, 0, sizeof(*dd)); | |
4389 | dd->major = major(stb.st_rdev); | |
4390 | dd->minor = minor(stb.st_rdev); | |
b9f594fe | 4391 | dd->index = -1; |
c2c087e6 | 4392 | dd->devname = devname ? strdup(devname) : NULL; |
c2c087e6 | 4393 | dd->fd = fd; |
689c9bf3 | 4394 | dd->e = NULL; |
1a64be56 | 4395 | dd->action = DISK_ADD; |
c2c087e6 | 4396 | rv = imsm_read_serial(fd, devname, dd->serial); |
32ba9157 | 4397 | if (rv) { |
c2c087e6 | 4398 | fprintf(stderr, |
0030e8d6 | 4399 | Name ": failed to retrieve scsi serial, aborting\n"); |
949c47a0 | 4400 | free(dd); |
0030e8d6 | 4401 | abort(); |
c2c087e6 DW |
4402 | } |
4403 | ||
c2c087e6 DW |
4404 | get_dev_size(fd, NULL, &size); |
4405 | size /= 512; | |
1f24f035 | 4406 | serialcpy(dd->disk.serial, dd->serial); |
b9f594fe | 4407 | dd->disk.total_blocks = __cpu_to_le32(size); |
ee5aad5a | 4408 | dd->disk.status = SPARE_DISK; |
c2c087e6 | 4409 | if (sysfs_disk_to_scsi_id(fd, &id) == 0) |
b9f594fe | 4410 | dd->disk.scsi_id = __cpu_to_le32(id); |
c2c087e6 | 4411 | else |
b9f594fe | 4412 | dd->disk.scsi_id = __cpu_to_le32(0); |
43dad3d6 DW |
4413 | |
4414 | if (st->update_tail) { | |
1a64be56 LM |
4415 | dd->next = super->disk_mgmt_list; |
4416 | super->disk_mgmt_list = dd; | |
43dad3d6 DW |
4417 | } else { |
4418 | dd->next = super->disks; | |
4419 | super->disks = dd; | |
ceaf0ee1 | 4420 | super->updates_pending++; |
43dad3d6 | 4421 | } |
f20c3968 DW |
4422 | |
4423 | return 0; | |
cdddbdbc DW |
4424 | } |
4425 | ||
1a64be56 LM |
4426 | |
4427 | static int remove_from_super_imsm(struct supertype *st, mdu_disk_info_t *dk) | |
4428 | { | |
4429 | struct intel_super *super = st->sb; | |
4430 | struct dl *dd; | |
4431 | ||
4432 | /* remove from super works only in mdmon - for communication | |
4433 | * manager - monitor. Check if communication memory buffer | |
4434 | * is prepared. | |
4435 | */ | |
4436 | if (!st->update_tail) { | |
4437 | fprintf(stderr, | |
4438 | Name ": %s shall be used in mdmon context only" | |
4439 | "(line %d).\n", __func__, __LINE__); | |
4440 | return 1; | |
4441 | } | |
4442 | dd = malloc(sizeof(*dd)); | |
4443 | if (!dd) { | |
4444 | fprintf(stderr, | |
4445 | Name ": malloc failed %s:%d.\n", __func__, __LINE__); | |
4446 | return 1; | |
4447 | } | |
4448 | memset(dd, 0, sizeof(*dd)); | |
4449 | dd->major = dk->major; | |
4450 | dd->minor = dk->minor; | |
4451 | dd->index = -1; | |
4452 | dd->fd = -1; | |
4453 | dd->disk.status = SPARE_DISK; | |
4454 | dd->action = DISK_REMOVE; | |
4455 | ||
4456 | dd->next = super->disk_mgmt_list; | |
4457 | super->disk_mgmt_list = dd; | |
4458 | ||
4459 | ||
4460 | return 0; | |
4461 | } | |
4462 | ||
f796af5d DW |
4463 | static int store_imsm_mpb(int fd, struct imsm_super *mpb); |
4464 | ||
4465 | static union { | |
4466 | char buf[512]; | |
4467 | struct imsm_super anchor; | |
4468 | } spare_record __attribute__ ((aligned(512))); | |
c2c087e6 | 4469 | |
d23fe947 DW |
4470 | /* spare records have their own family number and do not have any defined raid |
4471 | * devices | |
4472 | */ | |
4473 | static int write_super_imsm_spares(struct intel_super *super, int doclose) | |
4474 | { | |
d23fe947 | 4475 | struct imsm_super *mpb = super->anchor; |
f796af5d | 4476 | struct imsm_super *spare = &spare_record.anchor; |
d23fe947 DW |
4477 | __u32 sum; |
4478 | struct dl *d; | |
4479 | ||
f796af5d DW |
4480 | spare->mpb_size = __cpu_to_le32(sizeof(struct imsm_super)), |
4481 | spare->generation_num = __cpu_to_le32(1UL), | |
4482 | spare->attributes = MPB_ATTRIB_CHECKSUM_VERIFY; | |
4483 | spare->num_disks = 1, | |
4484 | spare->num_raid_devs = 0, | |
4485 | spare->cache_size = mpb->cache_size, | |
4486 | spare->pwr_cycle_count = __cpu_to_le32(1), | |
4487 | ||
4488 | snprintf((char *) spare->sig, MAX_SIGNATURE_LENGTH, | |
4489 | MPB_SIGNATURE MPB_VERSION_RAID0); | |
d23fe947 DW |
4490 | |
4491 | for (d = super->disks; d; d = d->next) { | |
8796fdc4 | 4492 | if (d->index != -1) |
d23fe947 DW |
4493 | continue; |
4494 | ||
f796af5d DW |
4495 | spare->disk[0] = d->disk; |
4496 | sum = __gen_imsm_checksum(spare); | |
4497 | spare->family_num = __cpu_to_le32(sum); | |
4498 | spare->orig_family_num = 0; | |
4499 | sum = __gen_imsm_checksum(spare); | |
4500 | spare->check_sum = __cpu_to_le32(sum); | |
d23fe947 | 4501 | |
f796af5d | 4502 | if (store_imsm_mpb(d->fd, spare)) { |
d23fe947 DW |
4503 | fprintf(stderr, "%s: failed for device %d:%d %s\n", |
4504 | __func__, d->major, d->minor, strerror(errno)); | |
e74255d9 | 4505 | return 1; |
d23fe947 DW |
4506 | } |
4507 | if (doclose) { | |
4508 | close(d->fd); | |
4509 | d->fd = -1; | |
4510 | } | |
4511 | } | |
4512 | ||
e74255d9 | 4513 | return 0; |
d23fe947 DW |
4514 | } |
4515 | ||
36988a3d | 4516 | static int write_super_imsm(struct supertype *st, int doclose) |
cdddbdbc | 4517 | { |
36988a3d | 4518 | struct intel_super *super = st->sb; |
949c47a0 | 4519 | struct imsm_super *mpb = super->anchor; |
c2c087e6 DW |
4520 | struct dl *d; |
4521 | __u32 generation; | |
4522 | __u32 sum; | |
d23fe947 | 4523 | int spares = 0; |
949c47a0 | 4524 | int i; |
a48ac0a8 | 4525 | __u32 mpb_size = sizeof(struct imsm_super) - sizeof(struct imsm_disk); |
36988a3d | 4526 | int num_disks = 0; |
146c6260 | 4527 | int clear_migration_record = 1; |
cdddbdbc | 4528 | |
c2c087e6 DW |
4529 | /* 'generation' is incremented everytime the metadata is written */ |
4530 | generation = __le32_to_cpu(mpb->generation_num); | |
4531 | generation++; | |
4532 | mpb->generation_num = __cpu_to_le32(generation); | |
4533 | ||
148acb7b DW |
4534 | /* fix up cases where previous mdadm releases failed to set |
4535 | * orig_family_num | |
4536 | */ | |
4537 | if (mpb->orig_family_num == 0) | |
4538 | mpb->orig_family_num = mpb->family_num; | |
4539 | ||
d23fe947 | 4540 | for (d = super->disks; d; d = d->next) { |
8796fdc4 | 4541 | if (d->index == -1) |
d23fe947 | 4542 | spares++; |
36988a3d | 4543 | else { |
d23fe947 | 4544 | mpb->disk[d->index] = d->disk; |
36988a3d AK |
4545 | num_disks++; |
4546 | } | |
d23fe947 | 4547 | } |
36988a3d | 4548 | for (d = super->missing; d; d = d->next) { |
47ee5a45 | 4549 | mpb->disk[d->index] = d->disk; |
36988a3d AK |
4550 | num_disks++; |
4551 | } | |
4552 | mpb->num_disks = num_disks; | |
4553 | mpb_size += sizeof(struct imsm_disk) * mpb->num_disks; | |
b9f594fe | 4554 | |
949c47a0 DW |
4555 | for (i = 0; i < mpb->num_raid_devs; i++) { |
4556 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
36988a3d AK |
4557 | struct imsm_dev *dev2 = get_imsm_dev(super, i); |
4558 | if (dev && dev2) { | |
4559 | imsm_copy_dev(dev, dev2); | |
4560 | mpb_size += sizeof_imsm_dev(dev, 0); | |
4561 | } | |
146c6260 AK |
4562 | if (is_gen_migration(dev2)) |
4563 | clear_migration_record = 0; | |
949c47a0 | 4564 | } |
a48ac0a8 DW |
4565 | mpb_size += __le32_to_cpu(mpb->bbm_log_size); |
4566 | mpb->mpb_size = __cpu_to_le32(mpb_size); | |
949c47a0 | 4567 | |
c2c087e6 | 4568 | /* recalculate checksum */ |
949c47a0 | 4569 | sum = __gen_imsm_checksum(mpb); |
c2c087e6 DW |
4570 | mpb->check_sum = __cpu_to_le32(sum); |
4571 | ||
146c6260 AK |
4572 | if (clear_migration_record) |
4573 | memset(super->migr_rec_buf, 0, 512); | |
4574 | ||
d23fe947 | 4575 | /* write the mpb for disks that compose raid devices */ |
c2c087e6 | 4576 | for (d = super->disks; d ; d = d->next) { |
d23fe947 DW |
4577 | if (d->index < 0) |
4578 | continue; | |
f796af5d | 4579 | if (store_imsm_mpb(d->fd, mpb)) |
c2c087e6 DW |
4580 | fprintf(stderr, "%s: failed for device %d:%d %s\n", |
4581 | __func__, d->major, d->minor, strerror(errno)); | |
146c6260 AK |
4582 | if (clear_migration_record) { |
4583 | unsigned long long dsize; | |
4584 | ||
4585 | get_dev_size(d->fd, NULL, &dsize); | |
4586 | if (lseek64(d->fd, dsize - 512, SEEK_SET) >= 0) { | |
9e2d750d N |
4587 | if (write(d->fd, super->migr_rec_buf, 512) != 512) |
4588 | perror("Write migr_rec failed"); | |
146c6260 AK |
4589 | } |
4590 | } | |
c2c087e6 DW |
4591 | if (doclose) { |
4592 | close(d->fd); | |
4593 | d->fd = -1; | |
4594 | } | |
4595 | } | |
4596 | ||
d23fe947 DW |
4597 | if (spares) |
4598 | return write_super_imsm_spares(super, doclose); | |
4599 | ||
e74255d9 | 4600 | return 0; |
c2c087e6 DW |
4601 | } |
4602 | ||
0e600426 | 4603 | |
9b1fb677 | 4604 | static int create_array(struct supertype *st, int dev_idx) |
43dad3d6 DW |
4605 | { |
4606 | size_t len; | |
4607 | struct imsm_update_create_array *u; | |
4608 | struct intel_super *super = st->sb; | |
9b1fb677 | 4609 | struct imsm_dev *dev = get_imsm_dev(super, dev_idx); |
54c2c1ea DW |
4610 | struct imsm_map *map = get_imsm_map(dev, 0); |
4611 | struct disk_info *inf; | |
4612 | struct imsm_disk *disk; | |
4613 | int i; | |
43dad3d6 | 4614 | |
54c2c1ea DW |
4615 | len = sizeof(*u) - sizeof(*dev) + sizeof_imsm_dev(dev, 0) + |
4616 | sizeof(*inf) * map->num_members; | |
43dad3d6 DW |
4617 | u = malloc(len); |
4618 | if (!u) { | |
4619 | fprintf(stderr, "%s: failed to allocate update buffer\n", | |
4620 | __func__); | |
4621 | return 1; | |
4622 | } | |
4623 | ||
4624 | u->type = update_create_array; | |
9b1fb677 | 4625 | u->dev_idx = dev_idx; |
43dad3d6 | 4626 | imsm_copy_dev(&u->dev, dev); |
54c2c1ea DW |
4627 | inf = get_disk_info(u); |
4628 | for (i = 0; i < map->num_members; i++) { | |
98130f40 | 4629 | int idx = get_imsm_disk_idx(dev, i, -1); |
9b1fb677 | 4630 | |
54c2c1ea DW |
4631 | disk = get_imsm_disk(super, idx); |
4632 | serialcpy(inf[i].serial, disk->serial); | |
4633 | } | |
43dad3d6 DW |
4634 | append_metadata_update(st, u, len); |
4635 | ||
4636 | return 0; | |
4637 | } | |
4638 | ||
1a64be56 | 4639 | static int mgmt_disk(struct supertype *st) |
43dad3d6 DW |
4640 | { |
4641 | struct intel_super *super = st->sb; | |
4642 | size_t len; | |
1a64be56 | 4643 | struct imsm_update_add_remove_disk *u; |
43dad3d6 | 4644 | |
1a64be56 | 4645 | if (!super->disk_mgmt_list) |
43dad3d6 DW |
4646 | return 0; |
4647 | ||
4648 | len = sizeof(*u); | |
4649 | u = malloc(len); | |
4650 | if (!u) { | |
4651 | fprintf(stderr, "%s: failed to allocate update buffer\n", | |
4652 | __func__); | |
4653 | return 1; | |
4654 | } | |
4655 | ||
1a64be56 | 4656 | u->type = update_add_remove_disk; |
43dad3d6 DW |
4657 | append_metadata_update(st, u, len); |
4658 | ||
4659 | return 0; | |
4660 | } | |
4661 | ||
c2c087e6 DW |
4662 | static int write_init_super_imsm(struct supertype *st) |
4663 | { | |
9b1fb677 DW |
4664 | struct intel_super *super = st->sb; |
4665 | int current_vol = super->current_vol; | |
4666 | ||
4667 | /* we are done with current_vol reset it to point st at the container */ | |
4668 | super->current_vol = -1; | |
4669 | ||
8273f55e | 4670 | if (st->update_tail) { |
43dad3d6 DW |
4671 | /* queue the recently created array / added disk |
4672 | * as a metadata update */ | |
43dad3d6 | 4673 | int rv; |
8273f55e | 4674 | |
43dad3d6 | 4675 | /* determine if we are creating a volume or adding a disk */ |
9b1fb677 | 4676 | if (current_vol < 0) { |
1a64be56 LM |
4677 | /* in the mgmt (add/remove) disk case we are running |
4678 | * in mdmon context, so don't close fd's | |
43dad3d6 | 4679 | */ |
1a64be56 | 4680 | return mgmt_disk(st); |
43dad3d6 | 4681 | } else |
9b1fb677 | 4682 | rv = create_array(st, current_vol); |
8273f55e | 4683 | |
43dad3d6 | 4684 | return rv; |
d682f344 N |
4685 | } else { |
4686 | struct dl *d; | |
4687 | for (d = super->disks; d; d = d->next) | |
4688 | Kill(d->devname, NULL, 0, 1, 1); | |
36988a3d | 4689 | return write_super_imsm(st, 1); |
d682f344 | 4690 | } |
cdddbdbc | 4691 | } |
0e600426 | 4692 | #endif |
cdddbdbc | 4693 | |
e683ca88 | 4694 | static int store_super_imsm(struct supertype *st, int fd) |
cdddbdbc | 4695 | { |
e683ca88 DW |
4696 | struct intel_super *super = st->sb; |
4697 | struct imsm_super *mpb = super ? super->anchor : NULL; | |
551c80c1 | 4698 | |
e683ca88 | 4699 | if (!mpb) |
ad97895e DW |
4700 | return 1; |
4701 | ||
1799c9e8 | 4702 | #ifndef MDASSEMBLE |
e683ca88 | 4703 | return store_imsm_mpb(fd, mpb); |
1799c9e8 N |
4704 | #else |
4705 | return 1; | |
4706 | #endif | |
cdddbdbc DW |
4707 | } |
4708 | ||
0e600426 N |
4709 | static int imsm_bbm_log_size(struct imsm_super *mpb) |
4710 | { | |
4711 | return __le32_to_cpu(mpb->bbm_log_size); | |
4712 | } | |
4713 | ||
4714 | #ifndef MDASSEMBLE | |
cdddbdbc DW |
4715 | static int validate_geometry_imsm_container(struct supertype *st, int level, |
4716 | int layout, int raiddisks, int chunk, | |
c2c087e6 | 4717 | unsigned long long size, char *dev, |
2c514b71 NB |
4718 | unsigned long long *freesize, |
4719 | int verbose) | |
cdddbdbc | 4720 | { |
c2c087e6 DW |
4721 | int fd; |
4722 | unsigned long long ldsize; | |
f2f5c343 LM |
4723 | struct intel_super *super=NULL; |
4724 | int rv = 0; | |
cdddbdbc | 4725 | |
c2c087e6 DW |
4726 | if (level != LEVEL_CONTAINER) |
4727 | return 0; | |
4728 | if (!dev) | |
4729 | return 1; | |
4730 | ||
4731 | fd = open(dev, O_RDONLY|O_EXCL, 0); | |
4732 | if (fd < 0) { | |
2c514b71 NB |
4733 | if (verbose) |
4734 | fprintf(stderr, Name ": imsm: Cannot open %s: %s\n", | |
4735 | dev, strerror(errno)); | |
c2c087e6 DW |
4736 | return 0; |
4737 | } | |
4738 | if (!get_dev_size(fd, dev, &ldsize)) { | |
4739 | close(fd); | |
4740 | return 0; | |
4741 | } | |
f2f5c343 LM |
4742 | |
4743 | /* capabilities retrieve could be possible | |
4744 | * note that there is no fd for the disks in array. | |
4745 | */ | |
4746 | super = alloc_super(); | |
4747 | if (!super) { | |
4748 | fprintf(stderr, | |
4749 | Name ": malloc of %zu failed.\n", | |
4750 | sizeof(*super)); | |
4751 | close(fd); | |
4752 | return 0; | |
4753 | } | |
4754 | ||
d424212e | 4755 | rv = find_intel_hba_capability(fd, super, verbose ? dev : NULL); |
f2f5c343 LM |
4756 | if (rv != 0) { |
4757 | #if DEBUG | |
4758 | char str[256]; | |
4759 | fd2devname(fd, str); | |
4760 | dprintf("validate_geometry_imsm_container: fd: %d %s orom: %p rv: %d raiddisk: %d\n", | |
4761 | fd, str, super->orom, rv, raiddisks); | |
4762 | #endif | |
4763 | /* no orom/efi or non-intel hba of the disk */ | |
4764 | close(fd); | |
4765 | free_imsm(super); | |
4766 | return 0; | |
4767 | } | |
c2c087e6 | 4768 | close(fd); |
f2f5c343 LM |
4769 | if (super->orom && raiddisks > super->orom->tds) { |
4770 | if (verbose) | |
4771 | fprintf(stderr, Name ": %d exceeds maximum number of" | |
4772 | " platform supported disks: %d\n", | |
4773 | raiddisks, super->orom->tds); | |
4774 | ||
4775 | free_imsm(super); | |
4776 | return 0; | |
4777 | } | |
c2c087e6 DW |
4778 | |
4779 | *freesize = avail_size_imsm(st, ldsize >> 9); | |
f2f5c343 | 4780 | free_imsm(super); |
c2c087e6 DW |
4781 | |
4782 | return 1; | |
cdddbdbc DW |
4783 | } |
4784 | ||
0dcecb2e DW |
4785 | static unsigned long long find_size(struct extent *e, int *idx, int num_extents) |
4786 | { | |
4787 | const unsigned long long base_start = e[*idx].start; | |
4788 | unsigned long long end = base_start + e[*idx].size; | |
4789 | int i; | |
4790 | ||
4791 | if (base_start == end) | |
4792 | return 0; | |
4793 | ||
4794 | *idx = *idx + 1; | |
4795 | for (i = *idx; i < num_extents; i++) { | |
4796 | /* extend overlapping extents */ | |
4797 | if (e[i].start >= base_start && | |
4798 | e[i].start <= end) { | |
4799 | if (e[i].size == 0) | |
4800 | return 0; | |
4801 | if (e[i].start + e[i].size > end) | |
4802 | end = e[i].start + e[i].size; | |
4803 | } else if (e[i].start > end) { | |
4804 | *idx = i; | |
4805 | break; | |
4806 | } | |
4807 | } | |
4808 | ||
4809 | return end - base_start; | |
4810 | } | |
4811 | ||
4812 | static unsigned long long merge_extents(struct intel_super *super, int sum_extents) | |
4813 | { | |
4814 | /* build a composite disk with all known extents and generate a new | |
4815 | * 'maxsize' given the "all disks in an array must share a common start | |
4816 | * offset" constraint | |
4817 | */ | |
4818 | struct extent *e = calloc(sum_extents, sizeof(*e)); | |
4819 | struct dl *dl; | |
4820 | int i, j; | |
4821 | int start_extent; | |
4822 | unsigned long long pos; | |
b9d77223 | 4823 | unsigned long long start = 0; |
0dcecb2e DW |
4824 | unsigned long long maxsize; |
4825 | unsigned long reserve; | |
4826 | ||
4827 | if (!e) | |
a7dd165b | 4828 | return 0; |
0dcecb2e DW |
4829 | |
4830 | /* coalesce and sort all extents. also, check to see if we need to | |
4831 | * reserve space between member arrays | |
4832 | */ | |
4833 | j = 0; | |
4834 | for (dl = super->disks; dl; dl = dl->next) { | |
4835 | if (!dl->e) | |
4836 | continue; | |
4837 | for (i = 0; i < dl->extent_cnt; i++) | |
4838 | e[j++] = dl->e[i]; | |
4839 | } | |
4840 | qsort(e, sum_extents, sizeof(*e), cmp_extent); | |
4841 | ||
4842 | /* merge extents */ | |
4843 | i = 0; | |
4844 | j = 0; | |
4845 | while (i < sum_extents) { | |
4846 | e[j].start = e[i].start; | |
4847 | e[j].size = find_size(e, &i, sum_extents); | |
4848 | j++; | |
4849 | if (e[j-1].size == 0) | |
4850 | break; | |
4851 | } | |
4852 | ||
4853 | pos = 0; | |
4854 | maxsize = 0; | |
4855 | start_extent = 0; | |
4856 | i = 0; | |
4857 | do { | |
4858 | unsigned long long esize; | |
4859 | ||
4860 | esize = e[i].start - pos; | |
4861 | if (esize >= maxsize) { | |
4862 | maxsize = esize; | |
4863 | start = pos; | |
4864 | start_extent = i; | |
4865 | } | |
4866 | pos = e[i].start + e[i].size; | |
4867 | i++; | |
4868 | } while (e[i-1].size); | |
4869 | free(e); | |
4870 | ||
a7dd165b DW |
4871 | if (maxsize == 0) |
4872 | return 0; | |
4873 | ||
4874 | /* FIXME assumes volume at offset 0 is the first volume in a | |
4875 | * container | |
4876 | */ | |
0dcecb2e DW |
4877 | if (start_extent > 0) |
4878 | reserve = IMSM_RESERVED_SECTORS; /* gap between raid regions */ | |
4879 | else | |
4880 | reserve = 0; | |
4881 | ||
4882 | if (maxsize < reserve) | |
a7dd165b | 4883 | return 0; |
0dcecb2e DW |
4884 | |
4885 | super->create_offset = ~((__u32) 0); | |
4886 | if (start + reserve > super->create_offset) | |
a7dd165b | 4887 | return 0; /* start overflows create_offset */ |
0dcecb2e DW |
4888 | super->create_offset = start + reserve; |
4889 | ||
4890 | return maxsize - reserve; | |
4891 | } | |
4892 | ||
88c32bb1 DW |
4893 | static int is_raid_level_supported(const struct imsm_orom *orom, int level, int raiddisks) |
4894 | { | |
4895 | if (level < 0 || level == 6 || level == 4) | |
4896 | return 0; | |
4897 | ||
4898 | /* if we have an orom prevent invalid raid levels */ | |
4899 | if (orom) | |
4900 | switch (level) { | |
4901 | case 0: return imsm_orom_has_raid0(orom); | |
4902 | case 1: | |
4903 | if (raiddisks > 2) | |
4904 | return imsm_orom_has_raid1e(orom); | |
1c556e92 DW |
4905 | return imsm_orom_has_raid1(orom) && raiddisks == 2; |
4906 | case 10: return imsm_orom_has_raid10(orom) && raiddisks == 4; | |
4907 | case 5: return imsm_orom_has_raid5(orom) && raiddisks > 2; | |
88c32bb1 DW |
4908 | } |
4909 | else | |
4910 | return 1; /* not on an Intel RAID platform so anything goes */ | |
4911 | ||
4912 | return 0; | |
4913 | } | |
4914 | ||
73408129 | 4915 | |
35f81cbb | 4916 | #define pr_vrb(fmt, arg...) (void) (verbose && fprintf(stderr, Name fmt, ##arg)) |
73408129 LM |
4917 | /* |
4918 | * validate volume parameters with OROM/EFI capabilities | |
4919 | */ | |
6592ce37 DW |
4920 | static int |
4921 | validate_geometry_imsm_orom(struct intel_super *super, int level, int layout, | |
c21e737b | 4922 | int raiddisks, int *chunk, int verbose) |
6592ce37 | 4923 | { |
73408129 LM |
4924 | #if DEBUG |
4925 | verbose = 1; | |
4926 | #endif | |
4927 | /* validate container capabilities */ | |
4928 | if (super->orom && raiddisks > super->orom->tds) { | |
4929 | if (verbose) | |
4930 | fprintf(stderr, Name ": %d exceeds maximum number of" | |
4931 | " platform supported disks: %d\n", | |
4932 | raiddisks, super->orom->tds); | |
4933 | return 0; | |
4934 | } | |
4935 | ||
4936 | /* capabilities of OROM tested - copied from validate_geometry_imsm_volume */ | |
4937 | if (super->orom && (!is_raid_level_supported(super->orom, level, | |
4938 | raiddisks))) { | |
6592ce37 DW |
4939 | pr_vrb(": platform does not support raid%d with %d disk%s\n", |
4940 | level, raiddisks, raiddisks > 1 ? "s" : ""); | |
4941 | return 0; | |
4942 | } | |
c21e737b CA |
4943 | if (super->orom && level != 1) { |
4944 | if (chunk && (*chunk == 0 || *chunk == UnSet)) | |
4945 | *chunk = imsm_orom_default_chunk(super->orom); | |
4946 | else if (chunk && !imsm_orom_has_chunk(super->orom, *chunk)) { | |
4947 | pr_vrb(": platform does not support a chunk size of: " | |
4948 | "%d\n", *chunk); | |
4949 | return 0; | |
4950 | } | |
6592ce37 DW |
4951 | } |
4952 | if (layout != imsm_level_to_layout(level)) { | |
4953 | if (level == 5) | |
4954 | pr_vrb(": imsm raid 5 only supports the left-asymmetric layout\n"); | |
4955 | else if (level == 10) | |
4956 | pr_vrb(": imsm raid 10 only supports the n2 layout\n"); | |
4957 | else | |
4958 | pr_vrb(": imsm unknown layout %#x for this raid level %d\n", | |
4959 | layout, level); | |
4960 | return 0; | |
4961 | } | |
6592ce37 DW |
4962 | return 1; |
4963 | } | |
4964 | ||
c2c087e6 DW |
4965 | /* validate_geometry_imsm_volume - lifted from validate_geometry_ddf_bvd |
4966 | * FIX ME add ahci details | |
4967 | */ | |
8b353278 | 4968 | static int validate_geometry_imsm_volume(struct supertype *st, int level, |
c21e737b | 4969 | int layout, int raiddisks, int *chunk, |
c2c087e6 | 4970 | unsigned long long size, char *dev, |
2c514b71 NB |
4971 | unsigned long long *freesize, |
4972 | int verbose) | |
cdddbdbc | 4973 | { |
c2c087e6 DW |
4974 | struct stat stb; |
4975 | struct intel_super *super = st->sb; | |
a20d2ba5 | 4976 | struct imsm_super *mpb = super->anchor; |
c2c087e6 DW |
4977 | struct dl *dl; |
4978 | unsigned long long pos = 0; | |
4979 | unsigned long long maxsize; | |
4980 | struct extent *e; | |
4981 | int i; | |
cdddbdbc | 4982 | |
88c32bb1 DW |
4983 | /* We must have the container info already read in. */ |
4984 | if (!super) | |
c2c087e6 DW |
4985 | return 0; |
4986 | ||
d54559f0 LM |
4987 | if (!validate_geometry_imsm_orom(super, level, layout, raiddisks, chunk, verbose)) { |
4988 | fprintf(stderr, Name ": RAID gemetry validation failed. " | |
4989 | "Cannot proceed with the action(s).\n"); | |
c2c087e6 | 4990 | return 0; |
d54559f0 | 4991 | } |
c2c087e6 DW |
4992 | if (!dev) { |
4993 | /* General test: make sure there is space for | |
2da8544a DW |
4994 | * 'raiddisks' device extents of size 'size' at a given |
4995 | * offset | |
c2c087e6 | 4996 | */ |
e46273eb | 4997 | unsigned long long minsize = size; |
b7528a20 | 4998 | unsigned long long start_offset = MaxSector; |
c2c087e6 DW |
4999 | int dcnt = 0; |
5000 | if (minsize == 0) | |
5001 | minsize = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
5002 | for (dl = super->disks; dl ; dl = dl->next) { | |
5003 | int found = 0; | |
5004 | ||
bf5a934a | 5005 | pos = 0; |
c2c087e6 DW |
5006 | i = 0; |
5007 | e = get_extents(super, dl); | |
5008 | if (!e) continue; | |
5009 | do { | |
5010 | unsigned long long esize; | |
5011 | esize = e[i].start - pos; | |
5012 | if (esize >= minsize) | |
5013 | found = 1; | |
b7528a20 | 5014 | if (found && start_offset == MaxSector) { |
2da8544a DW |
5015 | start_offset = pos; |
5016 | break; | |
5017 | } else if (found && pos != start_offset) { | |
5018 | found = 0; | |
5019 | break; | |
5020 | } | |
c2c087e6 DW |
5021 | pos = e[i].start + e[i].size; |
5022 | i++; | |
5023 | } while (e[i-1].size); | |
5024 | if (found) | |
5025 | dcnt++; | |
5026 | free(e); | |
5027 | } | |
5028 | if (dcnt < raiddisks) { | |
2c514b71 NB |
5029 | if (verbose) |
5030 | fprintf(stderr, Name ": imsm: Not enough " | |
5031 | "devices with space for this array " | |
5032 | "(%d < %d)\n", | |
5033 | dcnt, raiddisks); | |
c2c087e6 DW |
5034 | return 0; |
5035 | } | |
5036 | return 1; | |
5037 | } | |
0dcecb2e | 5038 | |
c2c087e6 DW |
5039 | /* This device must be a member of the set */ |
5040 | if (stat(dev, &stb) < 0) | |
5041 | return 0; | |
5042 | if ((S_IFMT & stb.st_mode) != S_IFBLK) | |
5043 | return 0; | |
5044 | for (dl = super->disks ; dl ; dl = dl->next) { | |
f21e18ca N |
5045 | if (dl->major == (int)major(stb.st_rdev) && |
5046 | dl->minor == (int)minor(stb.st_rdev)) | |
c2c087e6 DW |
5047 | break; |
5048 | } | |
5049 | if (!dl) { | |
2c514b71 NB |
5050 | if (verbose) |
5051 | fprintf(stderr, Name ": %s is not in the " | |
5052 | "same imsm set\n", dev); | |
c2c087e6 | 5053 | return 0; |
a20d2ba5 DW |
5054 | } else if (super->orom && dl->index < 0 && mpb->num_raid_devs) { |
5055 | /* If a volume is present then the current creation attempt | |
5056 | * cannot incorporate new spares because the orom may not | |
5057 | * understand this configuration (all member disks must be | |
5058 | * members of each array in the container). | |
5059 | */ | |
5060 | fprintf(stderr, Name ": %s is a spare and a volume" | |
5061 | " is already defined for this container\n", dev); | |
5062 | fprintf(stderr, Name ": The option-rom requires all member" | |
5063 | " disks to be a member of all volumes\n"); | |
5064 | return 0; | |
c2c087e6 | 5065 | } |
0dcecb2e DW |
5066 | |
5067 | /* retrieve the largest free space block */ | |
c2c087e6 DW |
5068 | e = get_extents(super, dl); |
5069 | maxsize = 0; | |
5070 | i = 0; | |
0dcecb2e DW |
5071 | if (e) { |
5072 | do { | |
5073 | unsigned long long esize; | |
5074 | ||
5075 | esize = e[i].start - pos; | |
5076 | if (esize >= maxsize) | |
5077 | maxsize = esize; | |
5078 | pos = e[i].start + e[i].size; | |
5079 | i++; | |
5080 | } while (e[i-1].size); | |
5081 | dl->e = e; | |
5082 | dl->extent_cnt = i; | |
5083 | } else { | |
5084 | if (verbose) | |
5085 | fprintf(stderr, Name ": unable to determine free space for: %s\n", | |
5086 | dev); | |
5087 | return 0; | |
5088 | } | |
5089 | if (maxsize < size) { | |
5090 | if (verbose) | |
5091 | fprintf(stderr, Name ": %s not enough space (%llu < %llu)\n", | |
5092 | dev, maxsize, size); | |
5093 | return 0; | |
5094 | } | |
5095 | ||
5096 | /* count total number of extents for merge */ | |
5097 | i = 0; | |
5098 | for (dl = super->disks; dl; dl = dl->next) | |
5099 | if (dl->e) | |
5100 | i += dl->extent_cnt; | |
5101 | ||
5102 | maxsize = merge_extents(super, i); | |
a7dd165b | 5103 | if (maxsize < size || maxsize == 0) { |
0dcecb2e DW |
5104 | if (verbose) |
5105 | fprintf(stderr, Name ": not enough space after merge (%llu < %llu)\n", | |
5106 | maxsize, size); | |
5107 | return 0; | |
0dcecb2e DW |
5108 | } |
5109 | ||
c2c087e6 DW |
5110 | *freesize = maxsize; |
5111 | ||
5112 | return 1; | |
cdddbdbc DW |
5113 | } |
5114 | ||
efb30e7f DW |
5115 | static int reserve_space(struct supertype *st, int raiddisks, |
5116 | unsigned long long size, int chunk, | |
5117 | unsigned long long *freesize) | |
5118 | { | |
5119 | struct intel_super *super = st->sb; | |
5120 | struct imsm_super *mpb = super->anchor; | |
5121 | struct dl *dl; | |
5122 | int i; | |
5123 | int extent_cnt; | |
5124 | struct extent *e; | |
5125 | unsigned long long maxsize; | |
5126 | unsigned long long minsize; | |
5127 | int cnt; | |
5128 | int used; | |
5129 | ||
5130 | /* find the largest common start free region of the possible disks */ | |
5131 | used = 0; | |
5132 | extent_cnt = 0; | |
5133 | cnt = 0; | |
5134 | for (dl = super->disks; dl; dl = dl->next) { | |
5135 | dl->raiddisk = -1; | |
5136 | ||
5137 | if (dl->index >= 0) | |
5138 | used++; | |
5139 | ||
5140 | /* don't activate new spares if we are orom constrained | |
5141 | * and there is already a volume active in the container | |
5142 | */ | |
5143 | if (super->orom && dl->index < 0 && mpb->num_raid_devs) | |
5144 | continue; | |
5145 | ||
5146 | e = get_extents(super, dl); | |
5147 | if (!e) | |
5148 | continue; | |
5149 | for (i = 1; e[i-1].size; i++) | |
5150 | ; | |
5151 | dl->e = e; | |
5152 | dl->extent_cnt = i; | |
5153 | extent_cnt += i; | |
5154 | cnt++; | |
5155 | } | |
5156 | ||
5157 | maxsize = merge_extents(super, extent_cnt); | |
5158 | minsize = size; | |
5159 | if (size == 0) | |
612e59d8 CA |
5160 | /* chunk is in K */ |
5161 | minsize = chunk * 2; | |
efb30e7f DW |
5162 | |
5163 | if (cnt < raiddisks || | |
5164 | (super->orom && used && used != raiddisks) || | |
a7dd165b DW |
5165 | maxsize < minsize || |
5166 | maxsize == 0) { | |
efb30e7f DW |
5167 | fprintf(stderr, Name ": not enough devices with space to create array.\n"); |
5168 | return 0; /* No enough free spaces large enough */ | |
5169 | } | |
5170 | ||
5171 | if (size == 0) { | |
5172 | size = maxsize; | |
5173 | if (chunk) { | |
612e59d8 CA |
5174 | size /= 2 * chunk; |
5175 | size *= 2 * chunk; | |
efb30e7f DW |
5176 | } |
5177 | } | |
5178 | ||
5179 | cnt = 0; | |
5180 | for (dl = super->disks; dl; dl = dl->next) | |
5181 | if (dl->e) | |
5182 | dl->raiddisk = cnt++; | |
5183 | ||
5184 | *freesize = size; | |
5185 | ||
5186 | return 1; | |
5187 | } | |
5188 | ||
bf5a934a | 5189 | static int validate_geometry_imsm(struct supertype *st, int level, int layout, |
c21e737b | 5190 | int raiddisks, int *chunk, unsigned long long size, |
bf5a934a DW |
5191 | char *dev, unsigned long long *freesize, |
5192 | int verbose) | |
5193 | { | |
5194 | int fd, cfd; | |
5195 | struct mdinfo *sra; | |
20cbe8d2 | 5196 | int is_member = 0; |
bf5a934a | 5197 | |
d54559f0 LM |
5198 | /* load capability |
5199 | * if given unused devices create a container | |
bf5a934a DW |
5200 | * if given given devices in a container create a member volume |
5201 | */ | |
5202 | if (level == LEVEL_CONTAINER) { | |
5203 | /* Must be a fresh device to add to a container */ | |
5204 | return validate_geometry_imsm_container(st, level, layout, | |
c21e737b CA |
5205 | raiddisks, |
5206 | chunk?*chunk:0, size, | |
bf5a934a DW |
5207 | dev, freesize, |
5208 | verbose); | |
5209 | } | |
5210 | ||
8592f29d N |
5211 | if (!dev) { |
5212 | if (st->sb && freesize) { | |
efb30e7f DW |
5213 | /* we are being asked to automatically layout a |
5214 | * new volume based on the current contents of | |
5215 | * the container. If the the parameters can be | |
5216 | * satisfied reserve_space will record the disks, | |
5217 | * start offset, and size of the volume to be | |
5218 | * created. add_to_super and getinfo_super | |
5219 | * detect when autolayout is in progress. | |
5220 | */ | |
6592ce37 DW |
5221 | if (!validate_geometry_imsm_orom(st->sb, level, layout, |
5222 | raiddisks, chunk, | |
5223 | verbose)) | |
5224 | return 0; | |
c21e737b CA |
5225 | return reserve_space(st, raiddisks, size, |
5226 | chunk?*chunk:0, freesize); | |
8592f29d N |
5227 | } |
5228 | return 1; | |
5229 | } | |
bf5a934a DW |
5230 | if (st->sb) { |
5231 | /* creating in a given container */ | |
5232 | return validate_geometry_imsm_volume(st, level, layout, | |
5233 | raiddisks, chunk, size, | |
5234 | dev, freesize, verbose); | |
5235 | } | |
5236 | ||
bf5a934a DW |
5237 | /* This device needs to be a device in an 'imsm' container */ |
5238 | fd = open(dev, O_RDONLY|O_EXCL, 0); | |
5239 | if (fd >= 0) { | |
5240 | if (verbose) | |
5241 | fprintf(stderr, | |
5242 | Name ": Cannot create this array on device %s\n", | |
5243 | dev); | |
5244 | close(fd); | |
5245 | return 0; | |
5246 | } | |
5247 | if (errno != EBUSY || (fd = open(dev, O_RDONLY, 0)) < 0) { | |
5248 | if (verbose) | |
5249 | fprintf(stderr, Name ": Cannot open %s: %s\n", | |
5250 | dev, strerror(errno)); | |
5251 | return 0; | |
5252 | } | |
5253 | /* Well, it is in use by someone, maybe an 'imsm' container. */ | |
5254 | cfd = open_container(fd); | |
20cbe8d2 | 5255 | close(fd); |
bf5a934a | 5256 | if (cfd < 0) { |
bf5a934a DW |
5257 | if (verbose) |
5258 | fprintf(stderr, Name ": Cannot use %s: It is busy\n", | |
5259 | dev); | |
5260 | return 0; | |
5261 | } | |
5262 | sra = sysfs_read(cfd, 0, GET_VERSION); | |
bf5a934a | 5263 | if (sra && sra->array.major_version == -1 && |
20cbe8d2 AW |
5264 | strcmp(sra->text_version, "imsm") == 0) |
5265 | is_member = 1; | |
5266 | sysfs_free(sra); | |
5267 | if (is_member) { | |
bf5a934a DW |
5268 | /* This is a member of a imsm container. Load the container |
5269 | * and try to create a volume | |
5270 | */ | |
5271 | struct intel_super *super; | |
5272 | ||
e1902a7b | 5273 | if (load_super_imsm_all(st, cfd, (void **) &super, NULL) == 0) { |
bf5a934a DW |
5274 | st->sb = super; |
5275 | st->container_dev = fd2devnum(cfd); | |
5276 | close(cfd); | |
5277 | return validate_geometry_imsm_volume(st, level, layout, | |
5278 | raiddisks, chunk, | |
5279 | size, dev, | |
5280 | freesize, verbose); | |
5281 | } | |
20cbe8d2 | 5282 | } |
bf5a934a | 5283 | |
20cbe8d2 AW |
5284 | if (verbose) |
5285 | fprintf(stderr, Name ": failed container membership check\n"); | |
5286 | ||
5287 | close(cfd); | |
5288 | return 0; | |
bf5a934a | 5289 | } |
0bd16cf2 | 5290 | |
30f58b22 | 5291 | static void default_geometry_imsm(struct supertype *st, int *level, int *layout, int *chunk) |
0bd16cf2 DJ |
5292 | { |
5293 | struct intel_super *super = st->sb; | |
5294 | ||
30f58b22 DW |
5295 | if (level && *level == UnSet) |
5296 | *level = LEVEL_CONTAINER; | |
5297 | ||
5298 | if (level && layout && *layout == UnSet) | |
5299 | *layout = imsm_level_to_layout(*level); | |
0bd16cf2 | 5300 | |
1d54f286 N |
5301 | if (chunk && (*chunk == UnSet || *chunk == 0) && |
5302 | super && super->orom) | |
30f58b22 | 5303 | *chunk = imsm_orom_default_chunk(super->orom); |
0bd16cf2 DJ |
5304 | } |
5305 | ||
33414a01 DW |
5306 | static void handle_missing(struct intel_super *super, struct imsm_dev *dev); |
5307 | ||
5308 | static int kill_subarray_imsm(struct supertype *st) | |
5309 | { | |
5310 | /* remove the subarray currently referenced by ->current_vol */ | |
5311 | __u8 i; | |
5312 | struct intel_dev **dp; | |
5313 | struct intel_super *super = st->sb; | |
5314 | __u8 current_vol = super->current_vol; | |
5315 | struct imsm_super *mpb = super->anchor; | |
5316 | ||
5317 | if (super->current_vol < 0) | |
5318 | return 2; | |
5319 | super->current_vol = -1; /* invalidate subarray cursor */ | |
5320 | ||
5321 | /* block deletions that would change the uuid of active subarrays | |
5322 | * | |
5323 | * FIXME when immutable ids are available, but note that we'll | |
5324 | * also need to fixup the invalidated/active subarray indexes in | |
5325 | * mdstat | |
5326 | */ | |
5327 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
5328 | char subarray[4]; | |
5329 | ||
5330 | if (i < current_vol) | |
5331 | continue; | |
5332 | sprintf(subarray, "%u", i); | |
5333 | if (is_subarray_active(subarray, st->devname)) { | |
5334 | fprintf(stderr, | |
5335 | Name ": deleting subarray-%d would change the UUID of active subarray-%d, aborting\n", | |
5336 | current_vol, i); | |
5337 | ||
5338 | return 2; | |
5339 | } | |
5340 | } | |
5341 | ||
5342 | if (st->update_tail) { | |
5343 | struct imsm_update_kill_array *u = malloc(sizeof(*u)); | |
5344 | ||
5345 | if (!u) | |
5346 | return 2; | |
5347 | u->type = update_kill_array; | |
5348 | u->dev_idx = current_vol; | |
5349 | append_metadata_update(st, u, sizeof(*u)); | |
5350 | ||
5351 | return 0; | |
5352 | } | |
5353 | ||
5354 | for (dp = &super->devlist; *dp;) | |
5355 | if ((*dp)->index == current_vol) { | |
5356 | *dp = (*dp)->next; | |
5357 | } else { | |
5358 | handle_missing(super, (*dp)->dev); | |
5359 | if ((*dp)->index > current_vol) | |
5360 | (*dp)->index--; | |
5361 | dp = &(*dp)->next; | |
5362 | } | |
5363 | ||
5364 | /* no more raid devices, all active components are now spares, | |
5365 | * but of course failed are still failed | |
5366 | */ | |
5367 | if (--mpb->num_raid_devs == 0) { | |
5368 | struct dl *d; | |
5369 | ||
5370 | for (d = super->disks; d; d = d->next) | |
5371 | if (d->index > -2) { | |
5372 | d->index = -1; | |
5373 | d->disk.status = SPARE_DISK; | |
5374 | } | |
5375 | } | |
5376 | ||
5377 | super->updates_pending++; | |
5378 | ||
5379 | return 0; | |
5380 | } | |
aa534678 | 5381 | |
a951a4f7 | 5382 | static int update_subarray_imsm(struct supertype *st, char *subarray, |
fa56eddb | 5383 | char *update, struct mddev_ident *ident) |
aa534678 DW |
5384 | { |
5385 | /* update the subarray currently referenced by ->current_vol */ | |
5386 | struct intel_super *super = st->sb; | |
5387 | struct imsm_super *mpb = super->anchor; | |
5388 | ||
aa534678 DW |
5389 | if (strcmp(update, "name") == 0) { |
5390 | char *name = ident->name; | |
a951a4f7 N |
5391 | char *ep; |
5392 | int vol; | |
aa534678 | 5393 | |
a951a4f7 | 5394 | if (is_subarray_active(subarray, st->devname)) { |
aa534678 DW |
5395 | fprintf(stderr, |
5396 | Name ": Unable to update name of active subarray\n"); | |
5397 | return 2; | |
5398 | } | |
5399 | ||
5400 | if (!check_name(super, name, 0)) | |
5401 | return 2; | |
5402 | ||
a951a4f7 N |
5403 | vol = strtoul(subarray, &ep, 10); |
5404 | if (*ep != '\0' || vol >= super->anchor->num_raid_devs) | |
5405 | return 2; | |
5406 | ||
aa534678 DW |
5407 | if (st->update_tail) { |
5408 | struct imsm_update_rename_array *u = malloc(sizeof(*u)); | |
5409 | ||
5410 | if (!u) | |
5411 | return 2; | |
5412 | u->type = update_rename_array; | |
a951a4f7 | 5413 | u->dev_idx = vol; |
aa534678 DW |
5414 | snprintf((char *) u->name, MAX_RAID_SERIAL_LEN, "%s", name); |
5415 | append_metadata_update(st, u, sizeof(*u)); | |
5416 | } else { | |
5417 | struct imsm_dev *dev; | |
5418 | int i; | |
5419 | ||
a951a4f7 | 5420 | dev = get_imsm_dev(super, vol); |
aa534678 DW |
5421 | snprintf((char *) dev->volume, MAX_RAID_SERIAL_LEN, "%s", name); |
5422 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
5423 | dev = get_imsm_dev(super, i); | |
5424 | handle_missing(super, dev); | |
5425 | } | |
5426 | super->updates_pending++; | |
5427 | } | |
5428 | } else | |
5429 | return 2; | |
5430 | ||
5431 | return 0; | |
5432 | } | |
bf5a934a | 5433 | |
28bce06f AK |
5434 | static int is_gen_migration(struct imsm_dev *dev) |
5435 | { | |
7534230b AK |
5436 | if (dev == NULL) |
5437 | return 0; | |
5438 | ||
28bce06f AK |
5439 | if (!dev->vol.migr_state) |
5440 | return 0; | |
5441 | ||
5442 | if (migr_type(dev) == MIGR_GEN_MIGR) | |
5443 | return 1; | |
5444 | ||
5445 | return 0; | |
5446 | } | |
71204a50 | 5447 | #endif /* MDASSEMBLE */ |
28bce06f | 5448 | |
1e5c6983 DW |
5449 | static int is_rebuilding(struct imsm_dev *dev) |
5450 | { | |
5451 | struct imsm_map *migr_map; | |
5452 | ||
5453 | if (!dev->vol.migr_state) | |
5454 | return 0; | |
5455 | ||
5456 | if (migr_type(dev) != MIGR_REBUILD) | |
5457 | return 0; | |
5458 | ||
5459 | migr_map = get_imsm_map(dev, 1); | |
5460 | ||
5461 | if (migr_map->map_state == IMSM_T_STATE_DEGRADED) | |
5462 | return 1; | |
5463 | else | |
5464 | return 0; | |
5465 | } | |
5466 | ||
c47b0ff6 AK |
5467 | static void update_recovery_start(struct intel_super *super, |
5468 | struct imsm_dev *dev, | |
5469 | struct mdinfo *array) | |
1e5c6983 DW |
5470 | { |
5471 | struct mdinfo *rebuild = NULL; | |
5472 | struct mdinfo *d; | |
5473 | __u32 units; | |
5474 | ||
5475 | if (!is_rebuilding(dev)) | |
5476 | return; | |
5477 | ||
5478 | /* Find the rebuild target, but punt on the dual rebuild case */ | |
5479 | for (d = array->devs; d; d = d->next) | |
5480 | if (d->recovery_start == 0) { | |
5481 | if (rebuild) | |
5482 | return; | |
5483 | rebuild = d; | |
5484 | } | |
5485 | ||
4363fd80 DW |
5486 | if (!rebuild) { |
5487 | /* (?) none of the disks are marked with | |
5488 | * IMSM_ORD_REBUILD, so assume they are missing and the | |
5489 | * disk_ord_tbl was not correctly updated | |
5490 | */ | |
5491 | dprintf("%s: failed to locate out-of-sync disk\n", __func__); | |
5492 | return; | |
5493 | } | |
5494 | ||
1e5c6983 | 5495 | units = __le32_to_cpu(dev->vol.curr_migr_unit); |
c47b0ff6 | 5496 | rebuild->recovery_start = units * blocks_per_migr_unit(super, dev); |
1e5c6983 DW |
5497 | } |
5498 | ||
9e2d750d | 5499 | #ifndef MDASSEMBLE |
276d77db | 5500 | static int recover_backup_imsm(struct supertype *st, struct mdinfo *info); |
9e2d750d | 5501 | #endif |
1e5c6983 | 5502 | |
00bbdbda | 5503 | static struct mdinfo *container_content_imsm(struct supertype *st, char *subarray) |
cdddbdbc | 5504 | { |
4f5bc454 DW |
5505 | /* Given a container loaded by load_super_imsm_all, |
5506 | * extract information about all the arrays into | |
5507 | * an mdinfo tree. | |
00bbdbda | 5508 | * If 'subarray' is given, just extract info about that array. |
4f5bc454 DW |
5509 | * |
5510 | * For each imsm_dev create an mdinfo, fill it in, | |
5511 | * then look for matching devices in super->disks | |
5512 | * and create appropriate device mdinfo. | |
5513 | */ | |
5514 | struct intel_super *super = st->sb; | |
949c47a0 | 5515 | struct imsm_super *mpb = super->anchor; |
4f5bc454 | 5516 | struct mdinfo *rest = NULL; |
00bbdbda | 5517 | unsigned int i; |
a06d022d | 5518 | int bbm_errors = 0; |
abef11a3 AK |
5519 | struct dl *d; |
5520 | int spare_disks = 0; | |
cdddbdbc | 5521 | |
19482bcc AK |
5522 | /* do not assemble arrays when not all attributes are supported */ |
5523 | if (imsm_check_attributes(mpb->attributes) == 0) { | |
5524 | fprintf(stderr, Name ": IMSM metadata loading not allowed " | |
5525 | "due to attributes incompatibility.\n"); | |
5526 | return NULL; | |
5527 | } | |
5528 | ||
a06d022d KW |
5529 | /* check for bad blocks */ |
5530 | if (imsm_bbm_log_size(super->anchor)) | |
5531 | bbm_errors = 1; | |
604b746f | 5532 | |
abef11a3 AK |
5533 | /* count spare devices, not used in maps |
5534 | */ | |
5535 | for (d = super->disks; d; d = d->next) | |
5536 | if (d->index == -1) | |
5537 | spare_disks++; | |
5538 | ||
4f5bc454 | 5539 | for (i = 0; i < mpb->num_raid_devs; i++) { |
00bbdbda N |
5540 | struct imsm_dev *dev; |
5541 | struct imsm_map *map; | |
86e3692b | 5542 | struct imsm_map *map2; |
4f5bc454 | 5543 | struct mdinfo *this; |
2db86302 | 5544 | int slot, chunk; |
00bbdbda N |
5545 | char *ep; |
5546 | ||
5547 | if (subarray && | |
5548 | (i != strtoul(subarray, &ep, 10) || *ep != '\0')) | |
5549 | continue; | |
5550 | ||
5551 | dev = get_imsm_dev(super, i); | |
5552 | map = get_imsm_map(dev, 0); | |
86e3692b | 5553 | map2 = get_imsm_map(dev, 1); |
4f5bc454 | 5554 | |
1ce0101c DW |
5555 | /* do not publish arrays that are in the middle of an |
5556 | * unsupported migration | |
5557 | */ | |
5558 | if (dev->vol.migr_state && | |
28bce06f | 5559 | (migr_type(dev) == MIGR_STATE_CHANGE)) { |
1ce0101c DW |
5560 | fprintf(stderr, Name ": cannot assemble volume '%.16s':" |
5561 | " unsupported migration in progress\n", | |
5562 | dev->volume); | |
5563 | continue; | |
5564 | } | |
2db86302 LM |
5565 | /* do not publish arrays that are not support by controller's |
5566 | * OROM/EFI | |
5567 | */ | |
1ce0101c | 5568 | |
2db86302 | 5569 | chunk = __le16_to_cpu(map->blocks_per_strip) >> 1; |
7b0bbd0f | 5570 | #ifndef MDASSEMBLE |
2db86302 LM |
5571 | if (!validate_geometry_imsm_orom(super, |
5572 | get_imsm_raid_level(map), /* RAID level */ | |
5573 | imsm_level_to_layout(get_imsm_raid_level(map)), | |
5574 | map->num_members, /* raid disks */ | |
5575 | &chunk, | |
5576 | 1 /* verbose */)) { | |
5577 | fprintf(stderr, Name ": RAID gemetry validation failed. " | |
5578 | "Cannot proceed with the action(s).\n"); | |
5579 | continue; | |
5580 | } | |
7b0bbd0f | 5581 | #endif /* MDASSEMBLE */ |
4f5bc454 | 5582 | this = malloc(sizeof(*this)); |
0fbd635c | 5583 | if (!this) { |
cf1be220 | 5584 | fprintf(stderr, Name ": failed to allocate %zu bytes\n", |
0fbd635c AW |
5585 | sizeof(*this)); |
5586 | break; | |
5587 | } | |
4f5bc454 | 5588 | |
301406c9 | 5589 | super->current_vol = i; |
a5d85af7 | 5590 | getinfo_super_imsm_volume(st, this, NULL); |
9894ec0d | 5591 | this->next = rest; |
4f5bc454 | 5592 | for (slot = 0 ; slot < map->num_members; slot++) { |
1e5c6983 | 5593 | unsigned long long recovery_start; |
4f5bc454 DW |
5594 | struct mdinfo *info_d; |
5595 | struct dl *d; | |
5596 | int idx; | |
9a1608e5 | 5597 | int skip; |
7eef0453 | 5598 | __u32 ord; |
4f5bc454 | 5599 | |
9a1608e5 | 5600 | skip = 0; |
98130f40 | 5601 | idx = get_imsm_disk_idx(dev, slot, 0); |
196b0d44 | 5602 | ord = get_imsm_ord_tbl_ent(dev, slot, -1); |
4f5bc454 DW |
5603 | for (d = super->disks; d ; d = d->next) |
5604 | if (d->index == idx) | |
0fbd635c | 5605 | break; |
4f5bc454 | 5606 | |
1e5c6983 | 5607 | recovery_start = MaxSector; |
4f5bc454 | 5608 | if (d == NULL) |
9a1608e5 | 5609 | skip = 1; |
25ed7e59 | 5610 | if (d && is_failed(&d->disk)) |
9a1608e5 | 5611 | skip = 1; |
7eef0453 | 5612 | if (ord & IMSM_ORD_REBUILD) |
1e5c6983 | 5613 | recovery_start = 0; |
9a1608e5 DW |
5614 | |
5615 | /* | |
5616 | * if we skip some disks the array will be assmebled degraded; | |
1e5c6983 DW |
5617 | * reset resync start to avoid a dirty-degraded |
5618 | * situation when performing the intial sync | |
9a1608e5 DW |
5619 | * |
5620 | * FIXME handle dirty degraded | |
5621 | */ | |
1e5c6983 | 5622 | if ((skip || recovery_start == 0) && !dev->vol.dirty) |
b7528a20 | 5623 | this->resync_start = MaxSector; |
9a1608e5 DW |
5624 | if (skip) |
5625 | continue; | |
4f5bc454 | 5626 | |
1e5c6983 | 5627 | info_d = calloc(1, sizeof(*info_d)); |
9a1608e5 DW |
5628 | if (!info_d) { |
5629 | fprintf(stderr, Name ": failed to allocate disk" | |
1ce0101c | 5630 | " for volume %.16s\n", dev->volume); |
1e5c6983 DW |
5631 | info_d = this->devs; |
5632 | while (info_d) { | |
5633 | struct mdinfo *d = info_d->next; | |
5634 | ||
5635 | free(info_d); | |
5636 | info_d = d; | |
5637 | } | |
9a1608e5 DW |
5638 | free(this); |
5639 | this = rest; | |
5640 | break; | |
5641 | } | |
4f5bc454 DW |
5642 | info_d->next = this->devs; |
5643 | this->devs = info_d; | |
5644 | ||
4f5bc454 DW |
5645 | info_d->disk.number = d->index; |
5646 | info_d->disk.major = d->major; | |
5647 | info_d->disk.minor = d->minor; | |
5648 | info_d->disk.raid_disk = slot; | |
1e5c6983 | 5649 | info_d->recovery_start = recovery_start; |
86e3692b AK |
5650 | if (map2) { |
5651 | if (slot < map2->num_members) | |
5652 | info_d->disk.state = (1 << MD_DISK_ACTIVE); | |
04c3c514 AK |
5653 | else |
5654 | this->array.spare_disks++; | |
86e3692b AK |
5655 | } else { |
5656 | if (slot < map->num_members) | |
5657 | info_d->disk.state = (1 << MD_DISK_ACTIVE); | |
04c3c514 AK |
5658 | else |
5659 | this->array.spare_disks++; | |
86e3692b | 5660 | } |
1e5c6983 DW |
5661 | if (info_d->recovery_start == MaxSector) |
5662 | this->array.working_disks++; | |
4f5bc454 DW |
5663 | |
5664 | info_d->events = __le32_to_cpu(mpb->generation_num); | |
5665 | info_d->data_offset = __le32_to_cpu(map->pba_of_lba0); | |
5666 | info_d->component_size = __le32_to_cpu(map->blocks_per_member); | |
4f5bc454 | 5667 | } |
1e5c6983 | 5668 | /* now that the disk list is up-to-date fixup recovery_start */ |
c47b0ff6 | 5669 | update_recovery_start(super, dev, this); |
abef11a3 | 5670 | this->array.spare_disks += spare_disks; |
276d77db | 5671 | |
9e2d750d | 5672 | #ifndef MDASSEMBLE |
276d77db AK |
5673 | /* check for reshape */ |
5674 | if (this->reshape_active == 1) | |
5675 | recover_backup_imsm(st, this); | |
9e2d750d | 5676 | #endif |
9a1608e5 | 5677 | rest = this; |
4f5bc454 DW |
5678 | } |
5679 | ||
a06d022d KW |
5680 | /* if array has bad blocks, set suitable bit in array status */ |
5681 | if (bbm_errors) | |
5682 | rest->array.state |= (1<<MD_SB_BBM_ERRORS); | |
5683 | ||
4f5bc454 | 5684 | return rest; |
cdddbdbc DW |
5685 | } |
5686 | ||
845dea95 | 5687 | |
fb49eef2 | 5688 | static __u8 imsm_check_degraded(struct intel_super *super, struct imsm_dev *dev, int failed) |
c2a1e7da | 5689 | { |
a965f303 | 5690 | struct imsm_map *map = get_imsm_map(dev, 0); |
c2a1e7da DW |
5691 | |
5692 | if (!failed) | |
3393c6af DW |
5693 | return map->map_state == IMSM_T_STATE_UNINITIALIZED ? |
5694 | IMSM_T_STATE_UNINITIALIZED : IMSM_T_STATE_NORMAL; | |
c2a1e7da DW |
5695 | |
5696 | switch (get_imsm_raid_level(map)) { | |
5697 | case 0: | |
5698 | return IMSM_T_STATE_FAILED; | |
5699 | break; | |
5700 | case 1: | |
5701 | if (failed < map->num_members) | |
5702 | return IMSM_T_STATE_DEGRADED; | |
5703 | else | |
5704 | return IMSM_T_STATE_FAILED; | |
5705 | break; | |
5706 | case 10: | |
5707 | { | |
5708 | /** | |
c92a2527 DW |
5709 | * check to see if any mirrors have failed, otherwise we |
5710 | * are degraded. Even numbered slots are mirrored on | |
5711 | * slot+1 | |
c2a1e7da | 5712 | */ |
c2a1e7da | 5713 | int i; |
d9b420a5 N |
5714 | /* gcc -Os complains that this is unused */ |
5715 | int insync = insync; | |
c2a1e7da DW |
5716 | |
5717 | for (i = 0; i < map->num_members; i++) { | |
98130f40 | 5718 | __u32 ord = get_imsm_ord_tbl_ent(dev, i, -1); |
c92a2527 DW |
5719 | int idx = ord_to_idx(ord); |
5720 | struct imsm_disk *disk; | |
c2a1e7da | 5721 | |
c92a2527 DW |
5722 | /* reset the potential in-sync count on even-numbered |
5723 | * slots. num_copies is always 2 for imsm raid10 | |
5724 | */ | |
5725 | if ((i & 1) == 0) | |
5726 | insync = 2; | |
c2a1e7da | 5727 | |
c92a2527 | 5728 | disk = get_imsm_disk(super, idx); |
25ed7e59 | 5729 | if (!disk || is_failed(disk) || ord & IMSM_ORD_REBUILD) |
c92a2527 | 5730 | insync--; |
c2a1e7da | 5731 | |
c92a2527 DW |
5732 | /* no in-sync disks left in this mirror the |
5733 | * array has failed | |
5734 | */ | |
5735 | if (insync == 0) | |
5736 | return IMSM_T_STATE_FAILED; | |
c2a1e7da DW |
5737 | } |
5738 | ||
5739 | return IMSM_T_STATE_DEGRADED; | |
5740 | } | |
5741 | case 5: | |
5742 | if (failed < 2) | |
5743 | return IMSM_T_STATE_DEGRADED; | |
5744 | else | |
5745 | return IMSM_T_STATE_FAILED; | |
5746 | break; | |
5747 | default: | |
5748 | break; | |
5749 | } | |
5750 | ||
5751 | return map->map_state; | |
5752 | } | |
5753 | ||
ff077194 | 5754 | static int imsm_count_failed(struct intel_super *super, struct imsm_dev *dev) |
c2a1e7da DW |
5755 | { |
5756 | int i; | |
5757 | int failed = 0; | |
5758 | struct imsm_disk *disk; | |
ff077194 | 5759 | struct imsm_map *map = get_imsm_map(dev, 0); |
0556e1a2 DW |
5760 | struct imsm_map *prev = get_imsm_map(dev, dev->vol.migr_state); |
5761 | __u32 ord; | |
5762 | int idx; | |
c2a1e7da | 5763 | |
0556e1a2 DW |
5764 | /* at the beginning of migration we set IMSM_ORD_REBUILD on |
5765 | * disks that are being rebuilt. New failures are recorded to | |
5766 | * map[0]. So we look through all the disks we started with and | |
5767 | * see if any failures are still present, or if any new ones | |
5768 | * have arrived | |
5769 | * | |
5770 | * FIXME add support for online capacity expansion and | |
5771 | * raid-level-migration | |
5772 | */ | |
5773 | for (i = 0; i < prev->num_members; i++) { | |
5774 | ord = __le32_to_cpu(prev->disk_ord_tbl[i]); | |
5775 | ord |= __le32_to_cpu(map->disk_ord_tbl[i]); | |
5776 | idx = ord_to_idx(ord); | |
c2a1e7da | 5777 | |
949c47a0 | 5778 | disk = get_imsm_disk(super, idx); |
25ed7e59 | 5779 | if (!disk || is_failed(disk) || ord & IMSM_ORD_REBUILD) |
fcb84475 | 5780 | failed++; |
c2a1e7da DW |
5781 | } |
5782 | ||
5783 | return failed; | |
845dea95 NB |
5784 | } |
5785 | ||
97b4d0e9 DW |
5786 | #ifndef MDASSEMBLE |
5787 | static int imsm_open_new(struct supertype *c, struct active_array *a, | |
5788 | char *inst) | |
5789 | { | |
5790 | struct intel_super *super = c->sb; | |
5791 | struct imsm_super *mpb = super->anchor; | |
5792 | ||
5793 | if (atoi(inst) >= mpb->num_raid_devs) { | |
5794 | fprintf(stderr, "%s: subarry index %d, out of range\n", | |
5795 | __func__, atoi(inst)); | |
5796 | return -ENODEV; | |
5797 | } | |
5798 | ||
5799 | dprintf("imsm: open_new %s\n", inst); | |
5800 | a->info.container_member = atoi(inst); | |
5801 | return 0; | |
5802 | } | |
5803 | ||
0c046afd DW |
5804 | static int is_resyncing(struct imsm_dev *dev) |
5805 | { | |
5806 | struct imsm_map *migr_map; | |
5807 | ||
5808 | if (!dev->vol.migr_state) | |
5809 | return 0; | |
5810 | ||
1484e727 DW |
5811 | if (migr_type(dev) == MIGR_INIT || |
5812 | migr_type(dev) == MIGR_REPAIR) | |
0c046afd DW |
5813 | return 1; |
5814 | ||
4c9bc37b AK |
5815 | if (migr_type(dev) == MIGR_GEN_MIGR) |
5816 | return 0; | |
5817 | ||
0c046afd DW |
5818 | migr_map = get_imsm_map(dev, 1); |
5819 | ||
4c9bc37b AK |
5820 | if ((migr_map->map_state == IMSM_T_STATE_NORMAL) && |
5821 | (dev->vol.migr_type != MIGR_GEN_MIGR)) | |
0c046afd DW |
5822 | return 1; |
5823 | else | |
5824 | return 0; | |
5825 | } | |
5826 | ||
0556e1a2 DW |
5827 | /* return true if we recorded new information */ |
5828 | static int mark_failure(struct imsm_dev *dev, struct imsm_disk *disk, int idx) | |
47ee5a45 | 5829 | { |
0556e1a2 DW |
5830 | __u32 ord; |
5831 | int slot; | |
5832 | struct imsm_map *map; | |
5833 | ||
5834 | /* new failures are always set in map[0] */ | |
5835 | map = get_imsm_map(dev, 0); | |
5836 | ||
5837 | slot = get_imsm_disk_slot(map, idx); | |
5838 | if (slot < 0) | |
5839 | return 0; | |
5840 | ||
5841 | ord = __le32_to_cpu(map->disk_ord_tbl[slot]); | |
25ed7e59 | 5842 | if (is_failed(disk) && (ord & IMSM_ORD_REBUILD)) |
0556e1a2 DW |
5843 | return 0; |
5844 | ||
f2f27e63 | 5845 | disk->status |= FAILED_DISK; |
0556e1a2 | 5846 | set_imsm_ord_tbl_ent(map, slot, idx | IMSM_ORD_REBUILD); |
f21e18ca | 5847 | if (map->failed_disk_num == 0xff) |
0556e1a2 DW |
5848 | map->failed_disk_num = slot; |
5849 | return 1; | |
5850 | } | |
5851 | ||
5852 | static void mark_missing(struct imsm_dev *dev, struct imsm_disk *disk, int idx) | |
5853 | { | |
5854 | mark_failure(dev, disk, idx); | |
5855 | ||
5856 | if (disk->scsi_id == __cpu_to_le32(~(__u32)0)) | |
5857 | return; | |
5858 | ||
47ee5a45 DW |
5859 | disk->scsi_id = __cpu_to_le32(~(__u32)0); |
5860 | memmove(&disk->serial[0], &disk->serial[1], MAX_RAID_SERIAL_LEN - 1); | |
5861 | } | |
5862 | ||
33414a01 DW |
5863 | static void handle_missing(struct intel_super *super, struct imsm_dev *dev) |
5864 | { | |
5865 | __u8 map_state; | |
5866 | struct dl *dl; | |
5867 | int failed; | |
5868 | ||
5869 | if (!super->missing) | |
5870 | return; | |
5871 | failed = imsm_count_failed(super, dev); | |
5872 | map_state = imsm_check_degraded(super, dev, failed); | |
5873 | ||
5874 | dprintf("imsm: mark missing\n"); | |
5875 | end_migration(dev, map_state); | |
5876 | for (dl = super->missing; dl; dl = dl->next) | |
5877 | mark_missing(dev, &dl->disk, dl->index); | |
5878 | super->updates_pending++; | |
5879 | } | |
5880 | ||
70bdf0dc AK |
5881 | static unsigned long long imsm_set_array_size(struct imsm_dev *dev) |
5882 | { | |
5883 | int used_disks = imsm_num_data_members(dev, 0); | |
5884 | unsigned long long array_blocks; | |
5885 | struct imsm_map *map; | |
5886 | ||
5887 | if (used_disks == 0) { | |
5888 | /* when problems occures | |
5889 | * return current array_blocks value | |
5890 | */ | |
5891 | array_blocks = __le32_to_cpu(dev->size_high); | |
5892 | array_blocks = array_blocks << 32; | |
5893 | array_blocks += __le32_to_cpu(dev->size_low); | |
5894 | ||
5895 | return array_blocks; | |
5896 | } | |
5897 | ||
5898 | /* set array size in metadata | |
5899 | */ | |
5900 | map = get_imsm_map(dev, 0); | |
5901 | array_blocks = map->blocks_per_member * used_disks; | |
5902 | ||
5903 | /* round array size down to closest MB | |
5904 | */ | |
5905 | array_blocks = (array_blocks >> SECT_PER_MB_SHIFT) << SECT_PER_MB_SHIFT; | |
5906 | dev->size_low = __cpu_to_le32((__u32)array_blocks); | |
5907 | dev->size_high = __cpu_to_le32((__u32)(array_blocks >> 32)); | |
5908 | ||
5909 | return array_blocks; | |
5910 | } | |
5911 | ||
28bce06f AK |
5912 | static void imsm_set_disk(struct active_array *a, int n, int state); |
5913 | ||
0e2d1a4e AK |
5914 | static void imsm_progress_container_reshape(struct intel_super *super) |
5915 | { | |
5916 | /* if no device has a migr_state, but some device has a | |
5917 | * different number of members than the previous device, start | |
5918 | * changing the number of devices in this device to match | |
5919 | * previous. | |
5920 | */ | |
5921 | struct imsm_super *mpb = super->anchor; | |
5922 | int prev_disks = -1; | |
5923 | int i; | |
1dfaa380 | 5924 | int copy_map_size; |
0e2d1a4e AK |
5925 | |
5926 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
5927 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
5928 | struct imsm_map *map = get_imsm_map(dev, 0); | |
5929 | struct imsm_map *map2; | |
5930 | int prev_num_members; | |
0e2d1a4e AK |
5931 | |
5932 | if (dev->vol.migr_state) | |
5933 | return; | |
5934 | ||
5935 | if (prev_disks == -1) | |
5936 | prev_disks = map->num_members; | |
5937 | if (prev_disks == map->num_members) | |
5938 | continue; | |
5939 | ||
5940 | /* OK, this array needs to enter reshape mode. | |
5941 | * i.e it needs a migr_state | |
5942 | */ | |
5943 | ||
1dfaa380 | 5944 | copy_map_size = sizeof_imsm_map(map); |
0e2d1a4e AK |
5945 | prev_num_members = map->num_members; |
5946 | map->num_members = prev_disks; | |
5947 | dev->vol.migr_state = 1; | |
5948 | dev->vol.curr_migr_unit = 0; | |
5949 | dev->vol.migr_type = MIGR_GEN_MIGR; | |
5950 | for (i = prev_num_members; | |
5951 | i < map->num_members; i++) | |
5952 | set_imsm_ord_tbl_ent(map, i, i); | |
5953 | map2 = get_imsm_map(dev, 1); | |
5954 | /* Copy the current map */ | |
1dfaa380 | 5955 | memcpy(map2, map, copy_map_size); |
0e2d1a4e AK |
5956 | map2->num_members = prev_num_members; |
5957 | ||
70bdf0dc | 5958 | imsm_set_array_size(dev); |
0e2d1a4e AK |
5959 | super->updates_pending++; |
5960 | } | |
5961 | } | |
5962 | ||
aad6f216 | 5963 | /* Handle dirty -> clean transititions, resync and reshape. Degraded and rebuild |
0c046afd DW |
5964 | * states are handled in imsm_set_disk() with one exception, when a |
5965 | * resync is stopped due to a new failure this routine will set the | |
5966 | * 'degraded' state for the array. | |
5967 | */ | |
01f157d7 | 5968 | static int imsm_set_array_state(struct active_array *a, int consistent) |
a862209d DW |
5969 | { |
5970 | int inst = a->info.container_member; | |
5971 | struct intel_super *super = a->container->sb; | |
949c47a0 | 5972 | struct imsm_dev *dev = get_imsm_dev(super, inst); |
a965f303 | 5973 | struct imsm_map *map = get_imsm_map(dev, 0); |
0c046afd DW |
5974 | int failed = imsm_count_failed(super, dev); |
5975 | __u8 map_state = imsm_check_degraded(super, dev, failed); | |
1e5c6983 | 5976 | __u32 blocks_per_unit; |
a862209d | 5977 | |
1af97990 AK |
5978 | if (dev->vol.migr_state && |
5979 | dev->vol.migr_type == MIGR_GEN_MIGR) { | |
5980 | /* array state change is blocked due to reshape action | |
aad6f216 N |
5981 | * We might need to |
5982 | * - abort the reshape (if last_checkpoint is 0 and action!= reshape) | |
5983 | * - finish the reshape (if last_checkpoint is big and action != reshape) | |
5984 | * - update curr_migr_unit | |
1af97990 | 5985 | */ |
aad6f216 N |
5986 | if (a->curr_action == reshape) { |
5987 | /* still reshaping, maybe update curr_migr_unit */ | |
633b5610 | 5988 | goto mark_checkpoint; |
aad6f216 N |
5989 | } else { |
5990 | if (a->last_checkpoint == 0 && a->prev_action == reshape) { | |
5991 | /* for some reason we aborted the reshape. | |
b66e591b AK |
5992 | * |
5993 | * disable automatic metadata rollback | |
5994 | * user action is required to recover process | |
aad6f216 | 5995 | */ |
b66e591b | 5996 | if (0) { |
aad6f216 N |
5997 | struct imsm_map *map2 = get_imsm_map(dev, 1); |
5998 | dev->vol.migr_state = 0; | |
5999 | dev->vol.migr_type = 0; | |
6000 | dev->vol.curr_migr_unit = 0; | |
6001 | memcpy(map, map2, sizeof_imsm_map(map2)); | |
6002 | super->updates_pending++; | |
b66e591b | 6003 | } |
aad6f216 N |
6004 | } |
6005 | if (a->last_checkpoint >= a->info.component_size) { | |
6006 | unsigned long long array_blocks; | |
6007 | int used_disks; | |
e154ced3 | 6008 | struct mdinfo *mdi; |
aad6f216 | 6009 | |
9653001d | 6010 | used_disks = imsm_num_data_members(dev, 0); |
d55adef9 AK |
6011 | if (used_disks > 0) { |
6012 | array_blocks = | |
6013 | map->blocks_per_member * | |
6014 | used_disks; | |
6015 | /* round array size down to closest MB | |
6016 | */ | |
6017 | array_blocks = (array_blocks | |
6018 | >> SECT_PER_MB_SHIFT) | |
6019 | << SECT_PER_MB_SHIFT; | |
d55adef9 AK |
6020 | a->info.custom_array_size = array_blocks; |
6021 | /* encourage manager to update array | |
6022 | * size | |
6023 | */ | |
e154ced3 | 6024 | |
d55adef9 | 6025 | a->check_reshape = 1; |
633b5610 | 6026 | } |
e154ced3 AK |
6027 | /* finalize online capacity expansion/reshape */ |
6028 | for (mdi = a->info.devs; mdi; mdi = mdi->next) | |
6029 | imsm_set_disk(a, | |
6030 | mdi->disk.raid_disk, | |
6031 | mdi->curr_state); | |
6032 | ||
0e2d1a4e | 6033 | imsm_progress_container_reshape(super); |
e154ced3 | 6034 | } |
aad6f216 | 6035 | } |
1af97990 AK |
6036 | } |
6037 | ||
47ee5a45 | 6038 | /* before we activate this array handle any missing disks */ |
33414a01 DW |
6039 | if (consistent == 2) |
6040 | handle_missing(super, dev); | |
1e5c6983 | 6041 | |
0c046afd | 6042 | if (consistent == 2 && |
b7941fd6 | 6043 | (!is_resync_complete(&a->info) || |
0c046afd DW |
6044 | map_state != IMSM_T_STATE_NORMAL || |
6045 | dev->vol.migr_state)) | |
01f157d7 | 6046 | consistent = 0; |
272906ef | 6047 | |
b7941fd6 | 6048 | if (is_resync_complete(&a->info)) { |
0c046afd | 6049 | /* complete intialization / resync, |
0556e1a2 DW |
6050 | * recovery and interrupted recovery is completed in |
6051 | * ->set_disk | |
0c046afd DW |
6052 | */ |
6053 | if (is_resyncing(dev)) { | |
6054 | dprintf("imsm: mark resync done\n"); | |
f8f603f1 | 6055 | end_migration(dev, map_state); |
115c3803 | 6056 | super->updates_pending++; |
484240d8 | 6057 | a->last_checkpoint = 0; |
115c3803 | 6058 | } |
0c046afd DW |
6059 | } else if (!is_resyncing(dev) && !failed) { |
6060 | /* mark the start of the init process if nothing is failed */ | |
b7941fd6 | 6061 | dprintf("imsm: mark resync start\n"); |
1484e727 | 6062 | if (map->map_state == IMSM_T_STATE_UNINITIALIZED) |
8e59f3d8 | 6063 | migrate(dev, super, IMSM_T_STATE_NORMAL, MIGR_INIT); |
1484e727 | 6064 | else |
8e59f3d8 | 6065 | migrate(dev, super, IMSM_T_STATE_NORMAL, MIGR_REPAIR); |
3393c6af | 6066 | super->updates_pending++; |
115c3803 | 6067 | } |
a862209d | 6068 | |
633b5610 | 6069 | mark_checkpoint: |
5b83bacf AK |
6070 | /* skip checkpointing for general migration, |
6071 | * it is controlled in mdadm | |
6072 | */ | |
6073 | if (is_gen_migration(dev)) | |
6074 | goto skip_mark_checkpoint; | |
6075 | ||
1e5c6983 | 6076 | /* check if we can update curr_migr_unit from resync_start, recovery_start */ |
c47b0ff6 | 6077 | blocks_per_unit = blocks_per_migr_unit(super, dev); |
4f0a7acc | 6078 | if (blocks_per_unit) { |
1e5c6983 DW |
6079 | __u32 units32; |
6080 | __u64 units; | |
6081 | ||
4f0a7acc | 6082 | units = a->last_checkpoint / blocks_per_unit; |
1e5c6983 DW |
6083 | units32 = units; |
6084 | ||
6085 | /* check that we did not overflow 32-bits, and that | |
6086 | * curr_migr_unit needs updating | |
6087 | */ | |
6088 | if (units32 == units && | |
bfd80a56 | 6089 | units32 != 0 && |
1e5c6983 DW |
6090 | __le32_to_cpu(dev->vol.curr_migr_unit) != units32) { |
6091 | dprintf("imsm: mark checkpoint (%u)\n", units32); | |
6092 | dev->vol.curr_migr_unit = __cpu_to_le32(units32); | |
6093 | super->updates_pending++; | |
6094 | } | |
6095 | } | |
f8f603f1 | 6096 | |
5b83bacf | 6097 | skip_mark_checkpoint: |
3393c6af | 6098 | /* mark dirty / clean */ |
0c046afd | 6099 | if (dev->vol.dirty != !consistent) { |
b7941fd6 | 6100 | dprintf("imsm: mark '%s'\n", consistent ? "clean" : "dirty"); |
0c046afd DW |
6101 | if (consistent) |
6102 | dev->vol.dirty = 0; | |
6103 | else | |
6104 | dev->vol.dirty = 1; | |
a862209d DW |
6105 | super->updates_pending++; |
6106 | } | |
28bce06f | 6107 | |
01f157d7 | 6108 | return consistent; |
a862209d DW |
6109 | } |
6110 | ||
8d45d196 | 6111 | static void imsm_set_disk(struct active_array *a, int n, int state) |
845dea95 | 6112 | { |
8d45d196 DW |
6113 | int inst = a->info.container_member; |
6114 | struct intel_super *super = a->container->sb; | |
949c47a0 | 6115 | struct imsm_dev *dev = get_imsm_dev(super, inst); |
a965f303 | 6116 | struct imsm_map *map = get_imsm_map(dev, 0); |
8d45d196 | 6117 | struct imsm_disk *disk; |
0c046afd | 6118 | int failed; |
b10b37b8 | 6119 | __u32 ord; |
0c046afd | 6120 | __u8 map_state; |
8d45d196 DW |
6121 | |
6122 | if (n > map->num_members) | |
6123 | fprintf(stderr, "imsm: set_disk %d out of range 0..%d\n", | |
6124 | n, map->num_members - 1); | |
6125 | ||
6126 | if (n < 0) | |
6127 | return; | |
6128 | ||
4e6e574a | 6129 | dprintf("imsm: set_disk %d:%x\n", n, state); |
8d45d196 | 6130 | |
98130f40 | 6131 | ord = get_imsm_ord_tbl_ent(dev, n, -1); |
b10b37b8 | 6132 | disk = get_imsm_disk(super, ord_to_idx(ord)); |
8d45d196 | 6133 | |
5802a811 | 6134 | /* check for new failures */ |
0556e1a2 DW |
6135 | if (state & DS_FAULTY) { |
6136 | if (mark_failure(dev, disk, ord_to_idx(ord))) | |
6137 | super->updates_pending++; | |
8d45d196 | 6138 | } |
47ee5a45 | 6139 | |
19859edc | 6140 | /* check if in_sync */ |
0556e1a2 | 6141 | if (state & DS_INSYNC && ord & IMSM_ORD_REBUILD && is_rebuilding(dev)) { |
b10b37b8 DW |
6142 | struct imsm_map *migr_map = get_imsm_map(dev, 1); |
6143 | ||
6144 | set_imsm_ord_tbl_ent(migr_map, n, ord_to_idx(ord)); | |
19859edc DW |
6145 | super->updates_pending++; |
6146 | } | |
8d45d196 | 6147 | |
0c046afd DW |
6148 | failed = imsm_count_failed(super, dev); |
6149 | map_state = imsm_check_degraded(super, dev, failed); | |
5802a811 | 6150 | |
0c046afd DW |
6151 | /* check if recovery complete, newly degraded, or failed */ |
6152 | if (map_state == IMSM_T_STATE_NORMAL && is_rebuilding(dev)) { | |
f8f603f1 | 6153 | end_migration(dev, map_state); |
0556e1a2 DW |
6154 | map = get_imsm_map(dev, 0); |
6155 | map->failed_disk_num = ~0; | |
0c046afd | 6156 | super->updates_pending++; |
484240d8 | 6157 | a->last_checkpoint = 0; |
0c046afd DW |
6158 | } else if (map_state == IMSM_T_STATE_DEGRADED && |
6159 | map->map_state != map_state && | |
6160 | !dev->vol.migr_state) { | |
6161 | dprintf("imsm: mark degraded\n"); | |
6162 | map->map_state = map_state; | |
6163 | super->updates_pending++; | |
484240d8 | 6164 | a->last_checkpoint = 0; |
0c046afd DW |
6165 | } else if (map_state == IMSM_T_STATE_FAILED && |
6166 | map->map_state != map_state) { | |
6167 | dprintf("imsm: mark failed\n"); | |
f8f603f1 | 6168 | end_migration(dev, map_state); |
0c046afd | 6169 | super->updates_pending++; |
484240d8 | 6170 | a->last_checkpoint = 0; |
28bce06f AK |
6171 | } else if (is_gen_migration(dev)) { |
6172 | dprintf("imsm: Detected General Migration in state: "); | |
6173 | if (map_state == IMSM_T_STATE_NORMAL) { | |
6174 | end_migration(dev, map_state); | |
6175 | map = get_imsm_map(dev, 0); | |
6176 | map->failed_disk_num = ~0; | |
6177 | dprintf("normal\n"); | |
6178 | } else { | |
6179 | if (map_state == IMSM_T_STATE_DEGRADED) { | |
6180 | printf("degraded\n"); | |
6181 | end_migration(dev, map_state); | |
6182 | } else { | |
6183 | dprintf("failed\n"); | |
6184 | } | |
6185 | map->map_state = map_state; | |
6186 | } | |
6187 | super->updates_pending++; | |
5802a811 | 6188 | } |
845dea95 NB |
6189 | } |
6190 | ||
f796af5d | 6191 | static int store_imsm_mpb(int fd, struct imsm_super *mpb) |
c2a1e7da | 6192 | { |
f796af5d | 6193 | void *buf = mpb; |
c2a1e7da DW |
6194 | __u32 mpb_size = __le32_to_cpu(mpb->mpb_size); |
6195 | unsigned long long dsize; | |
6196 | unsigned long long sectors; | |
6197 | ||
6198 | get_dev_size(fd, NULL, &dsize); | |
6199 | ||
272f648f DW |
6200 | if (mpb_size > 512) { |
6201 | /* -1 to account for anchor */ | |
6202 | sectors = mpb_sectors(mpb) - 1; | |
c2a1e7da | 6203 | |
272f648f DW |
6204 | /* write the extended mpb to the sectors preceeding the anchor */ |
6205 | if (lseek64(fd, dsize - (512 * (2 + sectors)), SEEK_SET) < 0) | |
6206 | return 1; | |
c2a1e7da | 6207 | |
f21e18ca N |
6208 | if ((unsigned long long)write(fd, buf + 512, 512 * sectors) |
6209 | != 512 * sectors) | |
272f648f DW |
6210 | return 1; |
6211 | } | |
c2a1e7da | 6212 | |
272f648f DW |
6213 | /* first block is stored on second to last sector of the disk */ |
6214 | if (lseek64(fd, dsize - (512 * 2), SEEK_SET) < 0) | |
c2a1e7da DW |
6215 | return 1; |
6216 | ||
f796af5d | 6217 | if (write(fd, buf, 512) != 512) |
c2a1e7da DW |
6218 | return 1; |
6219 | ||
c2a1e7da DW |
6220 | return 0; |
6221 | } | |
6222 | ||
2e735d19 | 6223 | static void imsm_sync_metadata(struct supertype *container) |
845dea95 | 6224 | { |
2e735d19 | 6225 | struct intel_super *super = container->sb; |
c2a1e7da | 6226 | |
1a64be56 | 6227 | dprintf("sync metadata: %d\n", super->updates_pending); |
c2a1e7da DW |
6228 | if (!super->updates_pending) |
6229 | return; | |
6230 | ||
36988a3d | 6231 | write_super_imsm(container, 0); |
c2a1e7da DW |
6232 | |
6233 | super->updates_pending = 0; | |
845dea95 NB |
6234 | } |
6235 | ||
272906ef DW |
6236 | static struct dl *imsm_readd(struct intel_super *super, int idx, struct active_array *a) |
6237 | { | |
6238 | struct imsm_dev *dev = get_imsm_dev(super, a->info.container_member); | |
98130f40 | 6239 | int i = get_imsm_disk_idx(dev, idx, -1); |
272906ef DW |
6240 | struct dl *dl; |
6241 | ||
6242 | for (dl = super->disks; dl; dl = dl->next) | |
6243 | if (dl->index == i) | |
6244 | break; | |
6245 | ||
25ed7e59 | 6246 | if (dl && is_failed(&dl->disk)) |
272906ef DW |
6247 | dl = NULL; |
6248 | ||
6249 | if (dl) | |
6250 | dprintf("%s: found %x:%x\n", __func__, dl->major, dl->minor); | |
6251 | ||
6252 | return dl; | |
6253 | } | |
6254 | ||
a20d2ba5 | 6255 | static struct dl *imsm_add_spare(struct intel_super *super, int slot, |
8ba77d32 AK |
6256 | struct active_array *a, int activate_new, |
6257 | struct mdinfo *additional_test_list) | |
272906ef DW |
6258 | { |
6259 | struct imsm_dev *dev = get_imsm_dev(super, a->info.container_member); | |
98130f40 | 6260 | int idx = get_imsm_disk_idx(dev, slot, -1); |
a20d2ba5 DW |
6261 | struct imsm_super *mpb = super->anchor; |
6262 | struct imsm_map *map; | |
272906ef DW |
6263 | unsigned long long pos; |
6264 | struct mdinfo *d; | |
6265 | struct extent *ex; | |
a20d2ba5 | 6266 | int i, j; |
272906ef | 6267 | int found; |
569cc43f DW |
6268 | __u32 array_start = 0; |
6269 | __u32 array_end = 0; | |
272906ef | 6270 | struct dl *dl; |
6c932028 | 6271 | struct mdinfo *test_list; |
272906ef DW |
6272 | |
6273 | for (dl = super->disks; dl; dl = dl->next) { | |
6274 | /* If in this array, skip */ | |
6275 | for (d = a->info.devs ; d ; d = d->next) | |
e553d2a4 DW |
6276 | if (d->state_fd >= 0 && |
6277 | d->disk.major == dl->major && | |
272906ef | 6278 | d->disk.minor == dl->minor) { |
8ba77d32 AK |
6279 | dprintf("%x:%x already in array\n", |
6280 | dl->major, dl->minor); | |
272906ef DW |
6281 | break; |
6282 | } | |
6283 | if (d) | |
6284 | continue; | |
6c932028 AK |
6285 | test_list = additional_test_list; |
6286 | while (test_list) { | |
6287 | if (test_list->disk.major == dl->major && | |
6288 | test_list->disk.minor == dl->minor) { | |
8ba77d32 AK |
6289 | dprintf("%x:%x already in additional test list\n", |
6290 | dl->major, dl->minor); | |
6291 | break; | |
6292 | } | |
6c932028 | 6293 | test_list = test_list->next; |
8ba77d32 | 6294 | } |
6c932028 | 6295 | if (test_list) |
8ba77d32 | 6296 | continue; |
272906ef | 6297 | |
e553d2a4 | 6298 | /* skip in use or failed drives */ |
25ed7e59 | 6299 | if (is_failed(&dl->disk) || idx == dl->index || |
df474657 DW |
6300 | dl->index == -2) { |
6301 | dprintf("%x:%x status (failed: %d index: %d)\n", | |
25ed7e59 | 6302 | dl->major, dl->minor, is_failed(&dl->disk), idx); |
9a1608e5 DW |
6303 | continue; |
6304 | } | |
6305 | ||
a20d2ba5 DW |
6306 | /* skip pure spares when we are looking for partially |
6307 | * assimilated drives | |
6308 | */ | |
6309 | if (dl->index == -1 && !activate_new) | |
6310 | continue; | |
6311 | ||
272906ef | 6312 | /* Does this unused device have the requisite free space? |
a20d2ba5 | 6313 | * It needs to be able to cover all member volumes |
272906ef DW |
6314 | */ |
6315 | ex = get_extents(super, dl); | |
6316 | if (!ex) { | |
6317 | dprintf("cannot get extents\n"); | |
6318 | continue; | |
6319 | } | |
a20d2ba5 DW |
6320 | for (i = 0; i < mpb->num_raid_devs; i++) { |
6321 | dev = get_imsm_dev(super, i); | |
6322 | map = get_imsm_map(dev, 0); | |
272906ef | 6323 | |
a20d2ba5 DW |
6324 | /* check if this disk is already a member of |
6325 | * this array | |
272906ef | 6326 | */ |
620b1713 | 6327 | if (get_imsm_disk_slot(map, dl->index) >= 0) |
a20d2ba5 DW |
6328 | continue; |
6329 | ||
6330 | found = 0; | |
6331 | j = 0; | |
6332 | pos = 0; | |
6333 | array_start = __le32_to_cpu(map->pba_of_lba0); | |
329c8278 DW |
6334 | array_end = array_start + |
6335 | __le32_to_cpu(map->blocks_per_member) - 1; | |
a20d2ba5 DW |
6336 | |
6337 | do { | |
6338 | /* check that we can start at pba_of_lba0 with | |
6339 | * blocks_per_member of space | |
6340 | */ | |
329c8278 | 6341 | if (array_start >= pos && array_end < ex[j].start) { |
a20d2ba5 DW |
6342 | found = 1; |
6343 | break; | |
6344 | } | |
6345 | pos = ex[j].start + ex[j].size; | |
6346 | j++; | |
6347 | } while (ex[j-1].size); | |
6348 | ||
6349 | if (!found) | |
272906ef | 6350 | break; |
a20d2ba5 | 6351 | } |
272906ef DW |
6352 | |
6353 | free(ex); | |
a20d2ba5 | 6354 | if (i < mpb->num_raid_devs) { |
329c8278 DW |
6355 | dprintf("%x:%x does not have %u to %u available\n", |
6356 | dl->major, dl->minor, array_start, array_end); | |
272906ef DW |
6357 | /* No room */ |
6358 | continue; | |
a20d2ba5 DW |
6359 | } |
6360 | return dl; | |
272906ef DW |
6361 | } |
6362 | ||
6363 | return dl; | |
6364 | } | |
6365 | ||
95d07a2c LM |
6366 | |
6367 | static int imsm_rebuild_allowed(struct supertype *cont, int dev_idx, int failed) | |
6368 | { | |
6369 | struct imsm_dev *dev2; | |
6370 | struct imsm_map *map; | |
6371 | struct dl *idisk; | |
6372 | int slot; | |
6373 | int idx; | |
6374 | __u8 state; | |
6375 | ||
6376 | dev2 = get_imsm_dev(cont->sb, dev_idx); | |
6377 | if (dev2) { | |
6378 | state = imsm_check_degraded(cont->sb, dev2, failed); | |
6379 | if (state == IMSM_T_STATE_FAILED) { | |
6380 | map = get_imsm_map(dev2, 0); | |
6381 | if (!map) | |
6382 | return 1; | |
6383 | for (slot = 0; slot < map->num_members; slot++) { | |
6384 | /* | |
6385 | * Check if failed disks are deleted from intel | |
6386 | * disk list or are marked to be deleted | |
6387 | */ | |
98130f40 | 6388 | idx = get_imsm_disk_idx(dev2, slot, -1); |
95d07a2c LM |
6389 | idisk = get_imsm_dl_disk(cont->sb, idx); |
6390 | /* | |
6391 | * Do not rebuild the array if failed disks | |
6392 | * from failed sub-array are not removed from | |
6393 | * container. | |
6394 | */ | |
6395 | if (idisk && | |
6396 | is_failed(&idisk->disk) && | |
6397 | (idisk->action != DISK_REMOVE)) | |
6398 | return 0; | |
6399 | } | |
6400 | } | |
6401 | } | |
6402 | return 1; | |
6403 | } | |
6404 | ||
88758e9d DW |
6405 | static struct mdinfo *imsm_activate_spare(struct active_array *a, |
6406 | struct metadata_update **updates) | |
6407 | { | |
6408 | /** | |
d23fe947 DW |
6409 | * Find a device with unused free space and use it to replace a |
6410 | * failed/vacant region in an array. We replace failed regions one a | |
6411 | * array at a time. The result is that a new spare disk will be added | |
6412 | * to the first failed array and after the monitor has finished | |
6413 | * propagating failures the remainder will be consumed. | |
88758e9d | 6414 | * |
d23fe947 DW |
6415 | * FIXME add a capability for mdmon to request spares from another |
6416 | * container. | |
88758e9d DW |
6417 | */ |
6418 | ||
6419 | struct intel_super *super = a->container->sb; | |
88758e9d | 6420 | int inst = a->info.container_member; |
949c47a0 | 6421 | struct imsm_dev *dev = get_imsm_dev(super, inst); |
a965f303 | 6422 | struct imsm_map *map = get_imsm_map(dev, 0); |
88758e9d DW |
6423 | int failed = a->info.array.raid_disks; |
6424 | struct mdinfo *rv = NULL; | |
6425 | struct mdinfo *d; | |
6426 | struct mdinfo *di; | |
6427 | struct metadata_update *mu; | |
6428 | struct dl *dl; | |
6429 | struct imsm_update_activate_spare *u; | |
6430 | int num_spares = 0; | |
6431 | int i; | |
95d07a2c | 6432 | int allowed; |
88758e9d DW |
6433 | |
6434 | for (d = a->info.devs ; d ; d = d->next) { | |
6435 | if ((d->curr_state & DS_FAULTY) && | |
6436 | d->state_fd >= 0) | |
6437 | /* wait for Removal to happen */ | |
6438 | return NULL; | |
6439 | if (d->state_fd >= 0) | |
6440 | failed--; | |
6441 | } | |
6442 | ||
6443 | dprintf("imsm: activate spare: inst=%d failed=%d (%d) level=%d\n", | |
6444 | inst, failed, a->info.array.raid_disks, a->info.array.level); | |
1af97990 AK |
6445 | |
6446 | if (dev->vol.migr_state && | |
6447 | dev->vol.migr_type == MIGR_GEN_MIGR) | |
6448 | /* No repair during migration */ | |
6449 | return NULL; | |
6450 | ||
89c67882 AK |
6451 | if (a->info.array.level == 4) |
6452 | /* No repair for takeovered array | |
6453 | * imsm doesn't support raid4 | |
6454 | */ | |
6455 | return NULL; | |
6456 | ||
fb49eef2 | 6457 | if (imsm_check_degraded(super, dev, failed) != IMSM_T_STATE_DEGRADED) |
88758e9d DW |
6458 | return NULL; |
6459 | ||
95d07a2c LM |
6460 | /* |
6461 | * If there are any failed disks check state of the other volume. | |
6462 | * Block rebuild if the another one is failed until failed disks | |
6463 | * are removed from container. | |
6464 | */ | |
6465 | if (failed) { | |
6466 | dprintf("found failed disks in %s, check if there another" | |
6467 | "failed sub-array.\n", | |
6468 | dev->volume); | |
6469 | /* check if states of the other volumes allow for rebuild */ | |
6470 | for (i = 0; i < super->anchor->num_raid_devs; i++) { | |
6471 | if (i != inst) { | |
6472 | allowed = imsm_rebuild_allowed(a->container, | |
6473 | i, failed); | |
6474 | if (!allowed) | |
6475 | return NULL; | |
6476 | } | |
6477 | } | |
6478 | } | |
6479 | ||
88758e9d | 6480 | /* For each slot, if it is not working, find a spare */ |
88758e9d DW |
6481 | for (i = 0; i < a->info.array.raid_disks; i++) { |
6482 | for (d = a->info.devs ; d ; d = d->next) | |
6483 | if (d->disk.raid_disk == i) | |
6484 | break; | |
6485 | dprintf("found %d: %p %x\n", i, d, d?d->curr_state:0); | |
6486 | if (d && (d->state_fd >= 0)) | |
6487 | continue; | |
6488 | ||
272906ef | 6489 | /* |
a20d2ba5 DW |
6490 | * OK, this device needs recovery. Try to re-add the |
6491 | * previous occupant of this slot, if this fails see if | |
6492 | * we can continue the assimilation of a spare that was | |
6493 | * partially assimilated, finally try to activate a new | |
6494 | * spare. | |
272906ef DW |
6495 | */ |
6496 | dl = imsm_readd(super, i, a); | |
6497 | if (!dl) | |
8ba77d32 | 6498 | dl = imsm_add_spare(super, i, a, 0, NULL); |
a20d2ba5 | 6499 | if (!dl) |
8ba77d32 | 6500 | dl = imsm_add_spare(super, i, a, 1, NULL); |
272906ef DW |
6501 | if (!dl) |
6502 | continue; | |
6503 | ||
6504 | /* found a usable disk with enough space */ | |
6505 | di = malloc(sizeof(*di)); | |
79244939 DW |
6506 | if (!di) |
6507 | continue; | |
272906ef DW |
6508 | memset(di, 0, sizeof(*di)); |
6509 | ||
6510 | /* dl->index will be -1 in the case we are activating a | |
6511 | * pristine spare. imsm_process_update() will create a | |
6512 | * new index in this case. Once a disk is found to be | |
6513 | * failed in all member arrays it is kicked from the | |
6514 | * metadata | |
6515 | */ | |
6516 | di->disk.number = dl->index; | |
d23fe947 | 6517 | |
272906ef DW |
6518 | /* (ab)use di->devs to store a pointer to the device |
6519 | * we chose | |
6520 | */ | |
6521 | di->devs = (struct mdinfo *) dl; | |
6522 | ||
6523 | di->disk.raid_disk = i; | |
6524 | di->disk.major = dl->major; | |
6525 | di->disk.minor = dl->minor; | |
6526 | di->disk.state = 0; | |
d23534e4 | 6527 | di->recovery_start = 0; |
272906ef DW |
6528 | di->data_offset = __le32_to_cpu(map->pba_of_lba0); |
6529 | di->component_size = a->info.component_size; | |
6530 | di->container_member = inst; | |
148acb7b | 6531 | super->random = random32(); |
272906ef DW |
6532 | di->next = rv; |
6533 | rv = di; | |
6534 | num_spares++; | |
6535 | dprintf("%x:%x to be %d at %llu\n", dl->major, dl->minor, | |
6536 | i, di->data_offset); | |
88758e9d | 6537 | |
272906ef | 6538 | break; |
88758e9d DW |
6539 | } |
6540 | ||
6541 | if (!rv) | |
6542 | /* No spares found */ | |
6543 | return rv; | |
6544 | /* Now 'rv' has a list of devices to return. | |
6545 | * Create a metadata_update record to update the | |
6546 | * disk_ord_tbl for the array | |
6547 | */ | |
6548 | mu = malloc(sizeof(*mu)); | |
79244939 DW |
6549 | if (mu) { |
6550 | mu->buf = malloc(sizeof(struct imsm_update_activate_spare) * num_spares); | |
6551 | if (mu->buf == NULL) { | |
6552 | free(mu); | |
6553 | mu = NULL; | |
6554 | } | |
6555 | } | |
6556 | if (!mu) { | |
6557 | while (rv) { | |
6558 | struct mdinfo *n = rv->next; | |
6559 | ||
6560 | free(rv); | |
6561 | rv = n; | |
6562 | } | |
6563 | return NULL; | |
6564 | } | |
6565 | ||
88758e9d | 6566 | mu->space = NULL; |
cb23f1f4 | 6567 | mu->space_list = NULL; |
88758e9d DW |
6568 | mu->len = sizeof(struct imsm_update_activate_spare) * num_spares; |
6569 | mu->next = *updates; | |
6570 | u = (struct imsm_update_activate_spare *) mu->buf; | |
6571 | ||
6572 | for (di = rv ; di ; di = di->next) { | |
6573 | u->type = update_activate_spare; | |
d23fe947 DW |
6574 | u->dl = (struct dl *) di->devs; |
6575 | di->devs = NULL; | |
88758e9d DW |
6576 | u->slot = di->disk.raid_disk; |
6577 | u->array = inst; | |
6578 | u->next = u + 1; | |
6579 | u++; | |
6580 | } | |
6581 | (u-1)->next = NULL; | |
6582 | *updates = mu; | |
6583 | ||
6584 | return rv; | |
6585 | } | |
6586 | ||
54c2c1ea | 6587 | static int disks_overlap(struct intel_super *super, int idx, struct imsm_update_create_array *u) |
8273f55e | 6588 | { |
54c2c1ea DW |
6589 | struct imsm_dev *dev = get_imsm_dev(super, idx); |
6590 | struct imsm_map *map = get_imsm_map(dev, 0); | |
6591 | struct imsm_map *new_map = get_imsm_map(&u->dev, 0); | |
6592 | struct disk_info *inf = get_disk_info(u); | |
6593 | struct imsm_disk *disk; | |
8273f55e DW |
6594 | int i; |
6595 | int j; | |
8273f55e | 6596 | |
54c2c1ea | 6597 | for (i = 0; i < map->num_members; i++) { |
98130f40 | 6598 | disk = get_imsm_disk(super, get_imsm_disk_idx(dev, i, -1)); |
54c2c1ea DW |
6599 | for (j = 0; j < new_map->num_members; j++) |
6600 | if (serialcmp(disk->serial, inf[j].serial) == 0) | |
8273f55e DW |
6601 | return 1; |
6602 | } | |
6603 | ||
6604 | return 0; | |
6605 | } | |
6606 | ||
1a64be56 LM |
6607 | |
6608 | static struct dl *get_disk_super(struct intel_super *super, int major, int minor) | |
6609 | { | |
6610 | struct dl *dl = NULL; | |
6611 | for (dl = super->disks; dl; dl = dl->next) | |
6612 | if ((dl->major == major) && (dl->minor == minor)) | |
6613 | return dl; | |
6614 | return NULL; | |
6615 | } | |
6616 | ||
6617 | static int remove_disk_super(struct intel_super *super, int major, int minor) | |
6618 | { | |
6619 | struct dl *prev = NULL; | |
6620 | struct dl *dl; | |
6621 | ||
6622 | prev = NULL; | |
6623 | for (dl = super->disks; dl; dl = dl->next) { | |
6624 | if ((dl->major == major) && (dl->minor == minor)) { | |
6625 | /* remove */ | |
6626 | if (prev) | |
6627 | prev->next = dl->next; | |
6628 | else | |
6629 | super->disks = dl->next; | |
6630 | dl->next = NULL; | |
6631 | __free_imsm_disk(dl); | |
6632 | dprintf("%s: removed %x:%x\n", | |
6633 | __func__, major, minor); | |
6634 | break; | |
6635 | } | |
6636 | prev = dl; | |
6637 | } | |
6638 | return 0; | |
6639 | } | |
6640 | ||
f21e18ca | 6641 | static void imsm_delete(struct intel_super *super, struct dl **dlp, unsigned index); |
ae6aad82 | 6642 | |
1a64be56 LM |
6643 | static int add_remove_disk_update(struct intel_super *super) |
6644 | { | |
6645 | int check_degraded = 0; | |
6646 | struct dl *disk = NULL; | |
6647 | /* add/remove some spares to/from the metadata/contrainer */ | |
6648 | while (super->disk_mgmt_list) { | |
6649 | struct dl *disk_cfg; | |
6650 | ||
6651 | disk_cfg = super->disk_mgmt_list; | |
6652 | super->disk_mgmt_list = disk_cfg->next; | |
6653 | disk_cfg->next = NULL; | |
6654 | ||
6655 | if (disk_cfg->action == DISK_ADD) { | |
6656 | disk_cfg->next = super->disks; | |
6657 | super->disks = disk_cfg; | |
6658 | check_degraded = 1; | |
6659 | dprintf("%s: added %x:%x\n", | |
6660 | __func__, disk_cfg->major, | |
6661 | disk_cfg->minor); | |
6662 | } else if (disk_cfg->action == DISK_REMOVE) { | |
6663 | dprintf("Disk remove action processed: %x.%x\n", | |
6664 | disk_cfg->major, disk_cfg->minor); | |
6665 | disk = get_disk_super(super, | |
6666 | disk_cfg->major, | |
6667 | disk_cfg->minor); | |
6668 | if (disk) { | |
6669 | /* store action status */ | |
6670 | disk->action = DISK_REMOVE; | |
6671 | /* remove spare disks only */ | |
6672 | if (disk->index == -1) { | |
6673 | remove_disk_super(super, | |
6674 | disk_cfg->major, | |
6675 | disk_cfg->minor); | |
6676 | } | |
6677 | } | |
6678 | /* release allocate disk structure */ | |
6679 | __free_imsm_disk(disk_cfg); | |
6680 | } | |
6681 | } | |
6682 | return check_degraded; | |
6683 | } | |
6684 | ||
a29911da PC |
6685 | |
6686 | static int apply_reshape_migration_update(struct imsm_update_reshape_migration *u, | |
6687 | struct intel_super *super, | |
6688 | void ***space_list) | |
6689 | { | |
6690 | struct intel_dev *id; | |
6691 | void **tofree = NULL; | |
6692 | int ret_val = 0; | |
6693 | ||
6694 | dprintf("apply_reshape_migration_update()\n"); | |
6695 | if ((u->subdev < 0) || | |
6696 | (u->subdev > 1)) { | |
6697 | dprintf("imsm: Error: Wrong subdev: %i\n", u->subdev); | |
6698 | return ret_val; | |
6699 | } | |
6700 | if ((space_list == NULL) || (*space_list == NULL)) { | |
6701 | dprintf("imsm: Error: Memory is not allocated\n"); | |
6702 | return ret_val; | |
6703 | } | |
6704 | ||
6705 | for (id = super->devlist ; id; id = id->next) { | |
6706 | if (id->index == (unsigned)u->subdev) { | |
6707 | struct imsm_dev *dev = get_imsm_dev(super, u->subdev); | |
6708 | struct imsm_map *map; | |
6709 | struct imsm_dev *new_dev = | |
6710 | (struct imsm_dev *)*space_list; | |
6711 | struct imsm_map *migr_map = get_imsm_map(dev, 1); | |
6712 | int to_state; | |
6713 | struct dl *new_disk; | |
6714 | ||
6715 | if (new_dev == NULL) | |
6716 | return ret_val; | |
6717 | *space_list = **space_list; | |
6718 | memcpy(new_dev, dev, sizeof_imsm_dev(dev, 0)); | |
6719 | map = get_imsm_map(new_dev, 0); | |
6720 | if (migr_map) { | |
6721 | dprintf("imsm: Error: migration in progress"); | |
6722 | return ret_val; | |
6723 | } | |
6724 | ||
6725 | to_state = map->map_state; | |
6726 | if ((u->new_level == 5) && (map->raid_level == 0)) { | |
6727 | map->num_members++; | |
6728 | /* this should not happen */ | |
6729 | if (u->new_disks[0] < 0) { | |
6730 | map->failed_disk_num = | |
6731 | map->num_members - 1; | |
6732 | to_state = IMSM_T_STATE_DEGRADED; | |
6733 | } else | |
6734 | to_state = IMSM_T_STATE_NORMAL; | |
6735 | } | |
8e59f3d8 | 6736 | migrate(new_dev, super, to_state, MIGR_GEN_MIGR); |
a29911da PC |
6737 | if (u->new_level > -1) |
6738 | map->raid_level = u->new_level; | |
6739 | migr_map = get_imsm_map(new_dev, 1); | |
6740 | if ((u->new_level == 5) && | |
6741 | (migr_map->raid_level == 0)) { | |
6742 | int ord = map->num_members - 1; | |
6743 | migr_map->num_members--; | |
6744 | if (u->new_disks[0] < 0) | |
6745 | ord |= IMSM_ORD_REBUILD; | |
6746 | set_imsm_ord_tbl_ent(map, | |
6747 | map->num_members - 1, | |
6748 | ord); | |
6749 | } | |
6750 | id->dev = new_dev; | |
6751 | tofree = (void **)dev; | |
6752 | ||
4bba0439 PC |
6753 | /* update chunk size |
6754 | */ | |
6755 | if (u->new_chunksize > 0) | |
6756 | map->blocks_per_strip = | |
6757 | __cpu_to_le16(u->new_chunksize * 2); | |
6758 | ||
a29911da PC |
6759 | /* add disk |
6760 | */ | |
6761 | if ((u->new_level != 5) || | |
6762 | (migr_map->raid_level != 0) || | |
6763 | (migr_map->raid_level == map->raid_level)) | |
6764 | goto skip_disk_add; | |
6765 | ||
6766 | if (u->new_disks[0] >= 0) { | |
6767 | /* use passes spare | |
6768 | */ | |
6769 | new_disk = get_disk_super(super, | |
6770 | major(u->new_disks[0]), | |
6771 | minor(u->new_disks[0])); | |
6772 | dprintf("imsm: new disk for reshape is: %i:%i " | |
6773 | "(%p, index = %i)\n", | |
6774 | major(u->new_disks[0]), | |
6775 | minor(u->new_disks[0]), | |
6776 | new_disk, new_disk->index); | |
6777 | if (new_disk == NULL) | |
6778 | goto error_disk_add; | |
6779 | ||
6780 | new_disk->index = map->num_members - 1; | |
6781 | /* slot to fill in autolayout | |
6782 | */ | |
6783 | new_disk->raiddisk = new_disk->index; | |
6784 | new_disk->disk.status |= CONFIGURED_DISK; | |
6785 | new_disk->disk.status &= ~SPARE_DISK; | |
6786 | } else | |
6787 | goto error_disk_add; | |
6788 | ||
6789 | skip_disk_add: | |
6790 | *tofree = *space_list; | |
6791 | /* calculate new size | |
6792 | */ | |
6793 | imsm_set_array_size(new_dev); | |
6794 | ||
6795 | ret_val = 1; | |
6796 | } | |
6797 | } | |
6798 | ||
6799 | if (tofree) | |
6800 | *space_list = tofree; | |
6801 | return ret_val; | |
6802 | ||
6803 | error_disk_add: | |
6804 | dprintf("Error: imsm: Cannot find disk.\n"); | |
6805 | return ret_val; | |
6806 | } | |
6807 | ||
6808 | ||
2e5dc010 N |
6809 | static int apply_reshape_container_disks_update(struct imsm_update_reshape *u, |
6810 | struct intel_super *super, | |
6811 | void ***space_list) | |
6812 | { | |
6813 | struct dl *new_disk; | |
6814 | struct intel_dev *id; | |
6815 | int i; | |
6816 | int delta_disks = u->new_raid_disks - u->old_raid_disks; | |
ee4beede | 6817 | int disk_count = u->old_raid_disks; |
2e5dc010 N |
6818 | void **tofree = NULL; |
6819 | int devices_to_reshape = 1; | |
6820 | struct imsm_super *mpb = super->anchor; | |
6821 | int ret_val = 0; | |
d098291a | 6822 | unsigned int dev_id; |
2e5dc010 | 6823 | |
ed7333bd | 6824 | dprintf("imsm: apply_reshape_container_disks_update()\n"); |
2e5dc010 N |
6825 | |
6826 | /* enable spares to use in array */ | |
6827 | for (i = 0; i < delta_disks; i++) { | |
6828 | new_disk = get_disk_super(super, | |
6829 | major(u->new_disks[i]), | |
6830 | minor(u->new_disks[i])); | |
ed7333bd AK |
6831 | dprintf("imsm: new disk for reshape is: %i:%i " |
6832 | "(%p, index = %i)\n", | |
2e5dc010 N |
6833 | major(u->new_disks[i]), minor(u->new_disks[i]), |
6834 | new_disk, new_disk->index); | |
6835 | if ((new_disk == NULL) || | |
6836 | ((new_disk->index >= 0) && | |
6837 | (new_disk->index < u->old_raid_disks))) | |
6838 | goto update_reshape_exit; | |
ee4beede | 6839 | new_disk->index = disk_count++; |
2e5dc010 N |
6840 | /* slot to fill in autolayout |
6841 | */ | |
6842 | new_disk->raiddisk = new_disk->index; | |
6843 | new_disk->disk.status |= | |
6844 | CONFIGURED_DISK; | |
6845 | new_disk->disk.status &= ~SPARE_DISK; | |
6846 | } | |
6847 | ||
ed7333bd AK |
6848 | dprintf("imsm: volume set mpb->num_raid_devs = %i\n", |
6849 | mpb->num_raid_devs); | |
2e5dc010 N |
6850 | /* manage changes in volume |
6851 | */ | |
d098291a | 6852 | for (dev_id = 0; dev_id < mpb->num_raid_devs; dev_id++) { |
2e5dc010 N |
6853 | void **sp = *space_list; |
6854 | struct imsm_dev *newdev; | |
6855 | struct imsm_map *newmap, *oldmap; | |
6856 | ||
d098291a AK |
6857 | for (id = super->devlist ; id; id = id->next) { |
6858 | if (id->index == dev_id) | |
6859 | break; | |
6860 | } | |
6861 | if (id == NULL) | |
6862 | break; | |
2e5dc010 N |
6863 | if (!sp) |
6864 | continue; | |
6865 | *space_list = *sp; | |
6866 | newdev = (void*)sp; | |
6867 | /* Copy the dev, but not (all of) the map */ | |
6868 | memcpy(newdev, id->dev, sizeof(*newdev)); | |
6869 | oldmap = get_imsm_map(id->dev, 0); | |
6870 | newmap = get_imsm_map(newdev, 0); | |
6871 | /* Copy the current map */ | |
6872 | memcpy(newmap, oldmap, sizeof_imsm_map(oldmap)); | |
6873 | /* update one device only | |
6874 | */ | |
6875 | if (devices_to_reshape) { | |
ed7333bd AK |
6876 | dprintf("imsm: modifying subdev: %i\n", |
6877 | id->index); | |
2e5dc010 N |
6878 | devices_to_reshape--; |
6879 | newdev->vol.migr_state = 1; | |
6880 | newdev->vol.curr_migr_unit = 0; | |
6881 | newdev->vol.migr_type = MIGR_GEN_MIGR; | |
6882 | newmap->num_members = u->new_raid_disks; | |
6883 | for (i = 0; i < delta_disks; i++) { | |
6884 | set_imsm_ord_tbl_ent(newmap, | |
6885 | u->old_raid_disks + i, | |
6886 | u->old_raid_disks + i); | |
6887 | } | |
6888 | /* New map is correct, now need to save old map | |
6889 | */ | |
6890 | newmap = get_imsm_map(newdev, 1); | |
6891 | memcpy(newmap, oldmap, sizeof_imsm_map(oldmap)); | |
6892 | ||
70bdf0dc | 6893 | imsm_set_array_size(newdev); |
2e5dc010 N |
6894 | } |
6895 | ||
6896 | sp = (void **)id->dev; | |
6897 | id->dev = newdev; | |
6898 | *sp = tofree; | |
6899 | tofree = sp; | |
8e59f3d8 AK |
6900 | |
6901 | /* Clear migration record */ | |
6902 | memset(super->migr_rec, 0, sizeof(struct migr_record)); | |
2e5dc010 | 6903 | } |
819bc634 AK |
6904 | if (tofree) |
6905 | *space_list = tofree; | |
2e5dc010 N |
6906 | ret_val = 1; |
6907 | ||
6908 | update_reshape_exit: | |
6909 | ||
6910 | return ret_val; | |
6911 | } | |
6912 | ||
bb025c2f | 6913 | static int apply_takeover_update(struct imsm_update_takeover *u, |
8ca6df95 KW |
6914 | struct intel_super *super, |
6915 | void ***space_list) | |
bb025c2f KW |
6916 | { |
6917 | struct imsm_dev *dev = NULL; | |
8ca6df95 KW |
6918 | struct intel_dev *dv; |
6919 | struct imsm_dev *dev_new; | |
bb025c2f KW |
6920 | struct imsm_map *map; |
6921 | struct dl *dm, *du; | |
8ca6df95 | 6922 | int i; |
bb025c2f KW |
6923 | |
6924 | for (dv = super->devlist; dv; dv = dv->next) | |
6925 | if (dv->index == (unsigned int)u->subarray) { | |
6926 | dev = dv->dev; | |
6927 | break; | |
6928 | } | |
6929 | ||
6930 | if (dev == NULL) | |
6931 | return 0; | |
6932 | ||
6933 | map = get_imsm_map(dev, 0); | |
6934 | ||
6935 | if (u->direction == R10_TO_R0) { | |
43d5ec18 KW |
6936 | /* Number of failed disks must be half of initial disk number */ |
6937 | if (imsm_count_failed(super, dev) != (map->num_members / 2)) | |
6938 | return 0; | |
6939 | ||
bb025c2f KW |
6940 | /* iterate through devices to mark removed disks as spare */ |
6941 | for (dm = super->disks; dm; dm = dm->next) { | |
6942 | if (dm->disk.status & FAILED_DISK) { | |
6943 | int idx = dm->index; | |
6944 | /* update indexes on the disk list */ | |
6945 | /* FIXME this loop-with-the-loop looks wrong, I'm not convinced | |
6946 | the index values will end up being correct.... NB */ | |
6947 | for (du = super->disks; du; du = du->next) | |
6948 | if (du->index > idx) | |
6949 | du->index--; | |
6950 | /* mark as spare disk */ | |
6951 | dm->disk.status = SPARE_DISK; | |
6952 | dm->index = -1; | |
6953 | } | |
6954 | } | |
bb025c2f KW |
6955 | /* update map */ |
6956 | map->num_members = map->num_members / 2; | |
6957 | map->map_state = IMSM_T_STATE_NORMAL; | |
6958 | map->num_domains = 1; | |
6959 | map->raid_level = 0; | |
6960 | map->failed_disk_num = -1; | |
6961 | } | |
6962 | ||
8ca6df95 KW |
6963 | if (u->direction == R0_TO_R10) { |
6964 | void **space; | |
6965 | /* update slots in current disk list */ | |
6966 | for (dm = super->disks; dm; dm = dm->next) { | |
6967 | if (dm->index >= 0) | |
6968 | dm->index *= 2; | |
6969 | } | |
6970 | /* create new *missing* disks */ | |
6971 | for (i = 0; i < map->num_members; i++) { | |
6972 | space = *space_list; | |
6973 | if (!space) | |
6974 | continue; | |
6975 | *space_list = *space; | |
6976 | du = (void *)space; | |
6977 | memcpy(du, super->disks, sizeof(*du)); | |
8ca6df95 KW |
6978 | du->fd = -1; |
6979 | du->minor = 0; | |
6980 | du->major = 0; | |
6981 | du->index = (i * 2) + 1; | |
6982 | sprintf((char *)du->disk.serial, | |
6983 | " MISSING_%d", du->index); | |
6984 | sprintf((char *)du->serial, | |
6985 | "MISSING_%d", du->index); | |
6986 | du->next = super->missing; | |
6987 | super->missing = du; | |
6988 | } | |
6989 | /* create new dev and map */ | |
6990 | space = *space_list; | |
6991 | if (!space) | |
6992 | return 0; | |
6993 | *space_list = *space; | |
6994 | dev_new = (void *)space; | |
6995 | memcpy(dev_new, dev, sizeof(*dev)); | |
6996 | /* update new map */ | |
6997 | map = get_imsm_map(dev_new, 0); | |
8ca6df95 | 6998 | map->num_members = map->num_members * 2; |
1a2487c2 | 6999 | map->map_state = IMSM_T_STATE_DEGRADED; |
8ca6df95 KW |
7000 | map->num_domains = 2; |
7001 | map->raid_level = 1; | |
7002 | /* replace dev<->dev_new */ | |
7003 | dv->dev = dev_new; | |
7004 | } | |
bb025c2f KW |
7005 | /* update disk order table */ |
7006 | for (du = super->disks; du; du = du->next) | |
7007 | if (du->index >= 0) | |
7008 | set_imsm_ord_tbl_ent(map, du->index, du->index); | |
8ca6df95 | 7009 | for (du = super->missing; du; du = du->next) |
1a2487c2 KW |
7010 | if (du->index >= 0) { |
7011 | set_imsm_ord_tbl_ent(map, du->index, du->index); | |
e4c72d1d | 7012 | mark_missing(dv->dev, &du->disk, du->index); |
1a2487c2 | 7013 | } |
bb025c2f KW |
7014 | |
7015 | return 1; | |
7016 | } | |
7017 | ||
e8319a19 DW |
7018 | static void imsm_process_update(struct supertype *st, |
7019 | struct metadata_update *update) | |
7020 | { | |
7021 | /** | |
7022 | * crack open the metadata_update envelope to find the update record | |
7023 | * update can be one of: | |
d195167d AK |
7024 | * update_reshape_container_disks - all the arrays in the container |
7025 | * are being reshaped to have more devices. We need to mark | |
7026 | * the arrays for general migration and convert selected spares | |
7027 | * into active devices. | |
7028 | * update_activate_spare - a spare device has replaced a failed | |
e8319a19 DW |
7029 | * device in an array, update the disk_ord_tbl. If this disk is |
7030 | * present in all member arrays then also clear the SPARE_DISK | |
7031 | * flag | |
d195167d AK |
7032 | * update_create_array |
7033 | * update_kill_array | |
7034 | * update_rename_array | |
7035 | * update_add_remove_disk | |
e8319a19 DW |
7036 | */ |
7037 | struct intel_super *super = st->sb; | |
4d7b1503 | 7038 | struct imsm_super *mpb; |
e8319a19 DW |
7039 | enum imsm_update_type type = *(enum imsm_update_type *) update->buf; |
7040 | ||
4d7b1503 DW |
7041 | /* update requires a larger buf but the allocation failed */ |
7042 | if (super->next_len && !super->next_buf) { | |
7043 | super->next_len = 0; | |
7044 | return; | |
7045 | } | |
7046 | ||
7047 | if (super->next_buf) { | |
7048 | memcpy(super->next_buf, super->buf, super->len); | |
7049 | free(super->buf); | |
7050 | super->len = super->next_len; | |
7051 | super->buf = super->next_buf; | |
7052 | ||
7053 | super->next_len = 0; | |
7054 | super->next_buf = NULL; | |
7055 | } | |
7056 | ||
7057 | mpb = super->anchor; | |
7058 | ||
e8319a19 | 7059 | switch (type) { |
0ec5d470 AK |
7060 | case update_general_migration_checkpoint: { |
7061 | struct intel_dev *id; | |
7062 | struct imsm_update_general_migration_checkpoint *u = | |
7063 | (void *)update->buf; | |
7064 | ||
7065 | dprintf("imsm: process_update() " | |
7066 | "for update_general_migration_checkpoint called\n"); | |
7067 | ||
7068 | /* find device under general migration */ | |
7069 | for (id = super->devlist ; id; id = id->next) { | |
7070 | if (is_gen_migration(id->dev)) { | |
7071 | id->dev->vol.curr_migr_unit = | |
7072 | __cpu_to_le32(u->curr_migr_unit); | |
7073 | super->updates_pending++; | |
7074 | } | |
7075 | } | |
7076 | break; | |
7077 | } | |
bb025c2f KW |
7078 | case update_takeover: { |
7079 | struct imsm_update_takeover *u = (void *)update->buf; | |
1a2487c2 KW |
7080 | if (apply_takeover_update(u, super, &update->space_list)) { |
7081 | imsm_update_version_info(super); | |
bb025c2f | 7082 | super->updates_pending++; |
1a2487c2 | 7083 | } |
bb025c2f KW |
7084 | break; |
7085 | } | |
7086 | ||
78b10e66 | 7087 | case update_reshape_container_disks: { |
d195167d | 7088 | struct imsm_update_reshape *u = (void *)update->buf; |
2e5dc010 N |
7089 | if (apply_reshape_container_disks_update( |
7090 | u, super, &update->space_list)) | |
7091 | super->updates_pending++; | |
78b10e66 N |
7092 | break; |
7093 | } | |
48c5303a | 7094 | case update_reshape_migration: { |
a29911da PC |
7095 | struct imsm_update_reshape_migration *u = (void *)update->buf; |
7096 | if (apply_reshape_migration_update( | |
7097 | u, super, &update->space_list)) | |
7098 | super->updates_pending++; | |
48c5303a PC |
7099 | break; |
7100 | } | |
e8319a19 DW |
7101 | case update_activate_spare: { |
7102 | struct imsm_update_activate_spare *u = (void *) update->buf; | |
949c47a0 | 7103 | struct imsm_dev *dev = get_imsm_dev(super, u->array); |
a965f303 | 7104 | struct imsm_map *map = get_imsm_map(dev, 0); |
0c046afd | 7105 | struct imsm_map *migr_map; |
e8319a19 DW |
7106 | struct active_array *a; |
7107 | struct imsm_disk *disk; | |
0c046afd | 7108 | __u8 to_state; |
e8319a19 | 7109 | struct dl *dl; |
e8319a19 | 7110 | unsigned int found; |
0c046afd | 7111 | int failed; |
98130f40 | 7112 | int victim = get_imsm_disk_idx(dev, u->slot, -1); |
e8319a19 DW |
7113 | int i; |
7114 | ||
7115 | for (dl = super->disks; dl; dl = dl->next) | |
d23fe947 | 7116 | if (dl == u->dl) |
e8319a19 DW |
7117 | break; |
7118 | ||
7119 | if (!dl) { | |
7120 | fprintf(stderr, "error: imsm_activate_spare passed " | |
1f24f035 DW |
7121 | "an unknown disk (index: %d)\n", |
7122 | u->dl->index); | |
e8319a19 DW |
7123 | return; |
7124 | } | |
7125 | ||
7126 | super->updates_pending++; | |
0c046afd DW |
7127 | /* count failures (excluding rebuilds and the victim) |
7128 | * to determine map[0] state | |
7129 | */ | |
7130 | failed = 0; | |
7131 | for (i = 0; i < map->num_members; i++) { | |
7132 | if (i == u->slot) | |
7133 | continue; | |
98130f40 AK |
7134 | disk = get_imsm_disk(super, |
7135 | get_imsm_disk_idx(dev, i, -1)); | |
25ed7e59 | 7136 | if (!disk || is_failed(disk)) |
0c046afd DW |
7137 | failed++; |
7138 | } | |
7139 | ||
d23fe947 DW |
7140 | /* adding a pristine spare, assign a new index */ |
7141 | if (dl->index < 0) { | |
7142 | dl->index = super->anchor->num_disks; | |
7143 | super->anchor->num_disks++; | |
7144 | } | |
d23fe947 | 7145 | disk = &dl->disk; |
f2f27e63 DW |
7146 | disk->status |= CONFIGURED_DISK; |
7147 | disk->status &= ~SPARE_DISK; | |
e8319a19 | 7148 | |
0c046afd DW |
7149 | /* mark rebuild */ |
7150 | to_state = imsm_check_degraded(super, dev, failed); | |
7151 | map->map_state = IMSM_T_STATE_DEGRADED; | |
8e59f3d8 | 7152 | migrate(dev, super, to_state, MIGR_REBUILD); |
0c046afd DW |
7153 | migr_map = get_imsm_map(dev, 1); |
7154 | set_imsm_ord_tbl_ent(map, u->slot, dl->index); | |
7155 | set_imsm_ord_tbl_ent(migr_map, u->slot, dl->index | IMSM_ORD_REBUILD); | |
7156 | ||
148acb7b DW |
7157 | /* update the family_num to mark a new container |
7158 | * generation, being careful to record the existing | |
7159 | * family_num in orig_family_num to clean up after | |
7160 | * earlier mdadm versions that neglected to set it. | |
7161 | */ | |
7162 | if (mpb->orig_family_num == 0) | |
7163 | mpb->orig_family_num = mpb->family_num; | |
7164 | mpb->family_num += super->random; | |
7165 | ||
e8319a19 DW |
7166 | /* count arrays using the victim in the metadata */ |
7167 | found = 0; | |
7168 | for (a = st->arrays; a ; a = a->next) { | |
949c47a0 | 7169 | dev = get_imsm_dev(super, a->info.container_member); |
620b1713 DW |
7170 | map = get_imsm_map(dev, 0); |
7171 | ||
7172 | if (get_imsm_disk_slot(map, victim) >= 0) | |
7173 | found++; | |
e8319a19 DW |
7174 | } |
7175 | ||
24565c9a | 7176 | /* delete the victim if it is no longer being |
e8319a19 DW |
7177 | * utilized anywhere |
7178 | */ | |
e8319a19 | 7179 | if (!found) { |
ae6aad82 | 7180 | struct dl **dlp; |
24565c9a | 7181 | |
47ee5a45 DW |
7182 | /* We know that 'manager' isn't touching anything, |
7183 | * so it is safe to delete | |
7184 | */ | |
24565c9a | 7185 | for (dlp = &super->disks; *dlp; dlp = &(*dlp)->next) |
ae6aad82 DW |
7186 | if ((*dlp)->index == victim) |
7187 | break; | |
47ee5a45 DW |
7188 | |
7189 | /* victim may be on the missing list */ | |
7190 | if (!*dlp) | |
7191 | for (dlp = &super->missing; *dlp; dlp = &(*dlp)->next) | |
7192 | if ((*dlp)->index == victim) | |
7193 | break; | |
24565c9a | 7194 | imsm_delete(super, dlp, victim); |
e8319a19 | 7195 | } |
8273f55e DW |
7196 | break; |
7197 | } | |
7198 | case update_create_array: { | |
7199 | /* someone wants to create a new array, we need to be aware of | |
7200 | * a few races/collisions: | |
7201 | * 1/ 'Create' called by two separate instances of mdadm | |
7202 | * 2/ 'Create' versus 'activate_spare': mdadm has chosen | |
7203 | * devices that have since been assimilated via | |
7204 | * activate_spare. | |
7205 | * In the event this update can not be carried out mdadm will | |
7206 | * (FIX ME) notice that its update did not take hold. | |
7207 | */ | |
7208 | struct imsm_update_create_array *u = (void *) update->buf; | |
ba2de7ba | 7209 | struct intel_dev *dv; |
8273f55e DW |
7210 | struct imsm_dev *dev; |
7211 | struct imsm_map *map, *new_map; | |
7212 | unsigned long long start, end; | |
7213 | unsigned long long new_start, new_end; | |
7214 | int i; | |
54c2c1ea DW |
7215 | struct disk_info *inf; |
7216 | struct dl *dl; | |
8273f55e DW |
7217 | |
7218 | /* handle racing creates: first come first serve */ | |
7219 | if (u->dev_idx < mpb->num_raid_devs) { | |
7220 | dprintf("%s: subarray %d already defined\n", | |
7221 | __func__, u->dev_idx); | |
ba2de7ba | 7222 | goto create_error; |
8273f55e DW |
7223 | } |
7224 | ||
7225 | /* check update is next in sequence */ | |
7226 | if (u->dev_idx != mpb->num_raid_devs) { | |
6a3e913e DW |
7227 | dprintf("%s: can not create array %d expected index %d\n", |
7228 | __func__, u->dev_idx, mpb->num_raid_devs); | |
ba2de7ba | 7229 | goto create_error; |
8273f55e DW |
7230 | } |
7231 | ||
a965f303 | 7232 | new_map = get_imsm_map(&u->dev, 0); |
8273f55e DW |
7233 | new_start = __le32_to_cpu(new_map->pba_of_lba0); |
7234 | new_end = new_start + __le32_to_cpu(new_map->blocks_per_member); | |
54c2c1ea | 7235 | inf = get_disk_info(u); |
8273f55e DW |
7236 | |
7237 | /* handle activate_spare versus create race: | |
7238 | * check to make sure that overlapping arrays do not include | |
7239 | * overalpping disks | |
7240 | */ | |
7241 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
949c47a0 | 7242 | dev = get_imsm_dev(super, i); |
a965f303 | 7243 | map = get_imsm_map(dev, 0); |
8273f55e DW |
7244 | start = __le32_to_cpu(map->pba_of_lba0); |
7245 | end = start + __le32_to_cpu(map->blocks_per_member); | |
7246 | if ((new_start >= start && new_start <= end) || | |
7247 | (start >= new_start && start <= new_end)) | |
54c2c1ea DW |
7248 | /* overlap */; |
7249 | else | |
7250 | continue; | |
7251 | ||
7252 | if (disks_overlap(super, i, u)) { | |
8273f55e | 7253 | dprintf("%s: arrays overlap\n", __func__); |
ba2de7ba | 7254 | goto create_error; |
8273f55e DW |
7255 | } |
7256 | } | |
8273f55e | 7257 | |
949c47a0 DW |
7258 | /* check that prepare update was successful */ |
7259 | if (!update->space) { | |
7260 | dprintf("%s: prepare update failed\n", __func__); | |
ba2de7ba | 7261 | goto create_error; |
949c47a0 DW |
7262 | } |
7263 | ||
54c2c1ea DW |
7264 | /* check that all disks are still active before committing |
7265 | * changes. FIXME: could we instead handle this by creating a | |
7266 | * degraded array? That's probably not what the user expects, | |
7267 | * so better to drop this update on the floor. | |
7268 | */ | |
7269 | for (i = 0; i < new_map->num_members; i++) { | |
7270 | dl = serial_to_dl(inf[i].serial, super); | |
7271 | if (!dl) { | |
7272 | dprintf("%s: disk disappeared\n", __func__); | |
ba2de7ba | 7273 | goto create_error; |
54c2c1ea | 7274 | } |
949c47a0 DW |
7275 | } |
7276 | ||
8273f55e | 7277 | super->updates_pending++; |
54c2c1ea DW |
7278 | |
7279 | /* convert spares to members and fixup ord_tbl */ | |
7280 | for (i = 0; i < new_map->num_members; i++) { | |
7281 | dl = serial_to_dl(inf[i].serial, super); | |
7282 | if (dl->index == -1) { | |
7283 | dl->index = mpb->num_disks; | |
7284 | mpb->num_disks++; | |
7285 | dl->disk.status |= CONFIGURED_DISK; | |
7286 | dl->disk.status &= ~SPARE_DISK; | |
7287 | } | |
7288 | set_imsm_ord_tbl_ent(new_map, i, dl->index); | |
7289 | } | |
7290 | ||
ba2de7ba DW |
7291 | dv = update->space; |
7292 | dev = dv->dev; | |
949c47a0 DW |
7293 | update->space = NULL; |
7294 | imsm_copy_dev(dev, &u->dev); | |
ba2de7ba DW |
7295 | dv->index = u->dev_idx; |
7296 | dv->next = super->devlist; | |
7297 | super->devlist = dv; | |
8273f55e | 7298 | mpb->num_raid_devs++; |
8273f55e | 7299 | |
4d1313e9 | 7300 | imsm_update_version_info(super); |
8273f55e | 7301 | break; |
ba2de7ba DW |
7302 | create_error: |
7303 | /* mdmon knows how to release update->space, but not | |
7304 | * ((struct intel_dev *) update->space)->dev | |
7305 | */ | |
7306 | if (update->space) { | |
7307 | dv = update->space; | |
7308 | free(dv->dev); | |
7309 | } | |
8273f55e | 7310 | break; |
e8319a19 | 7311 | } |
33414a01 DW |
7312 | case update_kill_array: { |
7313 | struct imsm_update_kill_array *u = (void *) update->buf; | |
7314 | int victim = u->dev_idx; | |
7315 | struct active_array *a; | |
7316 | struct intel_dev **dp; | |
7317 | struct imsm_dev *dev; | |
7318 | ||
7319 | /* sanity check that we are not affecting the uuid of | |
7320 | * active arrays, or deleting an active array | |
7321 | * | |
7322 | * FIXME when immutable ids are available, but note that | |
7323 | * we'll also need to fixup the invalidated/active | |
7324 | * subarray indexes in mdstat | |
7325 | */ | |
7326 | for (a = st->arrays; a; a = a->next) | |
7327 | if (a->info.container_member >= victim) | |
7328 | break; | |
7329 | /* by definition if mdmon is running at least one array | |
7330 | * is active in the container, so checking | |
7331 | * mpb->num_raid_devs is just extra paranoia | |
7332 | */ | |
7333 | dev = get_imsm_dev(super, victim); | |
7334 | if (a || !dev || mpb->num_raid_devs == 1) { | |
7335 | dprintf("failed to delete subarray-%d\n", victim); | |
7336 | break; | |
7337 | } | |
7338 | ||
7339 | for (dp = &super->devlist; *dp;) | |
f21e18ca | 7340 | if ((*dp)->index == (unsigned)super->current_vol) { |
33414a01 DW |
7341 | *dp = (*dp)->next; |
7342 | } else { | |
f21e18ca | 7343 | if ((*dp)->index > (unsigned)victim) |
33414a01 DW |
7344 | (*dp)->index--; |
7345 | dp = &(*dp)->next; | |
7346 | } | |
7347 | mpb->num_raid_devs--; | |
7348 | super->updates_pending++; | |
7349 | break; | |
7350 | } | |
aa534678 DW |
7351 | case update_rename_array: { |
7352 | struct imsm_update_rename_array *u = (void *) update->buf; | |
7353 | char name[MAX_RAID_SERIAL_LEN+1]; | |
7354 | int target = u->dev_idx; | |
7355 | struct active_array *a; | |
7356 | struct imsm_dev *dev; | |
7357 | ||
7358 | /* sanity check that we are not affecting the uuid of | |
7359 | * an active array | |
7360 | */ | |
7361 | snprintf(name, MAX_RAID_SERIAL_LEN, "%s", (char *) u->name); | |
7362 | name[MAX_RAID_SERIAL_LEN] = '\0'; | |
7363 | for (a = st->arrays; a; a = a->next) | |
7364 | if (a->info.container_member == target) | |
7365 | break; | |
7366 | dev = get_imsm_dev(super, u->dev_idx); | |
7367 | if (a || !dev || !check_name(super, name, 1)) { | |
7368 | dprintf("failed to rename subarray-%d\n", target); | |
7369 | break; | |
7370 | } | |
7371 | ||
cdbe98cd | 7372 | snprintf((char *) dev->volume, MAX_RAID_SERIAL_LEN, "%s", name); |
aa534678 DW |
7373 | super->updates_pending++; |
7374 | break; | |
7375 | } | |
1a64be56 | 7376 | case update_add_remove_disk: { |
43dad3d6 | 7377 | /* we may be able to repair some arrays if disks are |
1a64be56 LM |
7378 | * being added, check teh status of add_remove_disk |
7379 | * if discs has been added. | |
7380 | */ | |
7381 | if (add_remove_disk_update(super)) { | |
43dad3d6 | 7382 | struct active_array *a; |
072b727f DW |
7383 | |
7384 | super->updates_pending++; | |
1a64be56 | 7385 | for (a = st->arrays; a; a = a->next) |
43dad3d6 DW |
7386 | a->check_degraded = 1; |
7387 | } | |
43dad3d6 | 7388 | break; |
e8319a19 | 7389 | } |
1a64be56 LM |
7390 | default: |
7391 | fprintf(stderr, "error: unsuported process update type:" | |
7392 | "(type: %d)\n", type); | |
7393 | } | |
e8319a19 | 7394 | } |
88758e9d | 7395 | |
bc0b9d34 PC |
7396 | static struct mdinfo *get_spares_for_grow(struct supertype *st); |
7397 | ||
8273f55e DW |
7398 | static void imsm_prepare_update(struct supertype *st, |
7399 | struct metadata_update *update) | |
7400 | { | |
949c47a0 | 7401 | /** |
4d7b1503 DW |
7402 | * Allocate space to hold new disk entries, raid-device entries or a new |
7403 | * mpb if necessary. The manager synchronously waits for updates to | |
7404 | * complete in the monitor, so new mpb buffers allocated here can be | |
7405 | * integrated by the monitor thread without worrying about live pointers | |
7406 | * in the manager thread. | |
8273f55e | 7407 | */ |
949c47a0 | 7408 | enum imsm_update_type type = *(enum imsm_update_type *) update->buf; |
4d7b1503 DW |
7409 | struct intel_super *super = st->sb; |
7410 | struct imsm_super *mpb = super->anchor; | |
7411 | size_t buf_len; | |
7412 | size_t len = 0; | |
949c47a0 DW |
7413 | |
7414 | switch (type) { | |
0ec5d470 AK |
7415 | case update_general_migration_checkpoint: |
7416 | dprintf("imsm: prepare_update() " | |
7417 | "for update_general_migration_checkpoint called\n"); | |
7418 | break; | |
abedf5fc KW |
7419 | case update_takeover: { |
7420 | struct imsm_update_takeover *u = (void *)update->buf; | |
7421 | if (u->direction == R0_TO_R10) { | |
7422 | void **tail = (void **)&update->space_list; | |
7423 | struct imsm_dev *dev = get_imsm_dev(super, u->subarray); | |
7424 | struct imsm_map *map = get_imsm_map(dev, 0); | |
7425 | int num_members = map->num_members; | |
7426 | void *space; | |
7427 | int size, i; | |
7428 | int err = 0; | |
7429 | /* allocate memory for added disks */ | |
7430 | for (i = 0; i < num_members; i++) { | |
7431 | size = sizeof(struct dl); | |
7432 | space = malloc(size); | |
7433 | if (!space) { | |
7434 | err++; | |
7435 | break; | |
7436 | } | |
7437 | *tail = space; | |
7438 | tail = space; | |
7439 | *tail = NULL; | |
7440 | } | |
7441 | /* allocate memory for new device */ | |
7442 | size = sizeof_imsm_dev(super->devlist->dev, 0) + | |
7443 | (num_members * sizeof(__u32)); | |
7444 | space = malloc(size); | |
7445 | if (!space) | |
7446 | err++; | |
7447 | else { | |
7448 | *tail = space; | |
7449 | tail = space; | |
7450 | *tail = NULL; | |
7451 | } | |
7452 | if (!err) { | |
7453 | len = disks_to_mpb_size(num_members * 2); | |
7454 | } else { | |
7455 | /* if allocation didn't success, free buffer */ | |
7456 | while (update->space_list) { | |
7457 | void **sp = update->space_list; | |
7458 | update->space_list = *sp; | |
7459 | free(sp); | |
7460 | } | |
7461 | } | |
7462 | } | |
7463 | ||
7464 | break; | |
7465 | } | |
78b10e66 | 7466 | case update_reshape_container_disks: { |
d195167d AK |
7467 | /* Every raid device in the container is about to |
7468 | * gain some more devices, and we will enter a | |
7469 | * reconfiguration. | |
7470 | * So each 'imsm_map' will be bigger, and the imsm_vol | |
7471 | * will now hold 2 of them. | |
7472 | * Thus we need new 'struct imsm_dev' allocations sized | |
7473 | * as sizeof_imsm_dev but with more devices in both maps. | |
7474 | */ | |
7475 | struct imsm_update_reshape *u = (void *)update->buf; | |
7476 | struct intel_dev *dl; | |
7477 | void **space_tail = (void**)&update->space_list; | |
7478 | ||
7479 | dprintf("imsm: imsm_prepare_update() for update_reshape\n"); | |
7480 | ||
7481 | for (dl = super->devlist; dl; dl = dl->next) { | |
7482 | int size = sizeof_imsm_dev(dl->dev, 1); | |
7483 | void *s; | |
d677e0b8 AK |
7484 | if (u->new_raid_disks > u->old_raid_disks) |
7485 | size += sizeof(__u32)*2* | |
7486 | (u->new_raid_disks - u->old_raid_disks); | |
d195167d AK |
7487 | s = malloc(size); |
7488 | if (!s) | |
7489 | break; | |
7490 | *space_tail = s; | |
7491 | space_tail = s; | |
7492 | *space_tail = NULL; | |
7493 | } | |
7494 | ||
7495 | len = disks_to_mpb_size(u->new_raid_disks); | |
7496 | dprintf("New anchor length is %llu\n", (unsigned long long)len); | |
78b10e66 N |
7497 | break; |
7498 | } | |
48c5303a | 7499 | case update_reshape_migration: { |
bc0b9d34 PC |
7500 | /* for migration level 0->5 we need to add disks |
7501 | * so the same as for container operation we will copy | |
7502 | * device to the bigger location. | |
7503 | * in memory prepared device and new disk area are prepared | |
7504 | * for usage in process update | |
7505 | */ | |
7506 | struct imsm_update_reshape_migration *u = (void *)update->buf; | |
7507 | struct intel_dev *id; | |
7508 | void **space_tail = (void **)&update->space_list; | |
7509 | int size; | |
7510 | void *s; | |
7511 | int current_level = -1; | |
7512 | ||
7513 | dprintf("imsm: imsm_prepare_update() for update_reshape\n"); | |
7514 | ||
7515 | /* add space for bigger array in update | |
7516 | */ | |
7517 | for (id = super->devlist; id; id = id->next) { | |
7518 | if (id->index == (unsigned)u->subdev) { | |
7519 | size = sizeof_imsm_dev(id->dev, 1); | |
7520 | if (u->new_raid_disks > u->old_raid_disks) | |
7521 | size += sizeof(__u32)*2* | |
7522 | (u->new_raid_disks - u->old_raid_disks); | |
7523 | s = malloc(size); | |
7524 | if (!s) | |
7525 | break; | |
7526 | *space_tail = s; | |
7527 | space_tail = s; | |
7528 | *space_tail = NULL; | |
7529 | break; | |
7530 | } | |
7531 | } | |
7532 | if (update->space_list == NULL) | |
7533 | break; | |
7534 | ||
7535 | /* add space for disk in update | |
7536 | */ | |
7537 | size = sizeof(struct dl); | |
7538 | s = malloc(size); | |
7539 | if (!s) { | |
7540 | free(update->space_list); | |
7541 | update->space_list = NULL; | |
7542 | break; | |
7543 | } | |
7544 | *space_tail = s; | |
7545 | space_tail = s; | |
7546 | *space_tail = NULL; | |
7547 | ||
7548 | /* add spare device to update | |
7549 | */ | |
7550 | for (id = super->devlist ; id; id = id->next) | |
7551 | if (id->index == (unsigned)u->subdev) { | |
7552 | struct imsm_dev *dev; | |
7553 | struct imsm_map *map; | |
7554 | ||
7555 | dev = get_imsm_dev(super, u->subdev); | |
7556 | map = get_imsm_map(dev, 0); | |
7557 | current_level = map->raid_level; | |
7558 | break; | |
7559 | } | |
7560 | if ((u->new_level == 5) && (u->new_level != current_level)) { | |
7561 | struct mdinfo *spares; | |
7562 | ||
7563 | spares = get_spares_for_grow(st); | |
7564 | if (spares) { | |
7565 | struct dl *dl; | |
7566 | struct mdinfo *dev; | |
7567 | ||
7568 | dev = spares->devs; | |
7569 | if (dev) { | |
7570 | u->new_disks[0] = | |
7571 | makedev(dev->disk.major, | |
7572 | dev->disk.minor); | |
7573 | dl = get_disk_super(super, | |
7574 | dev->disk.major, | |
7575 | dev->disk.minor); | |
7576 | dl->index = u->old_raid_disks; | |
7577 | dev = dev->next; | |
7578 | } | |
7579 | sysfs_free(spares); | |
7580 | } | |
7581 | } | |
7582 | len = disks_to_mpb_size(u->new_raid_disks); | |
7583 | dprintf("New anchor length is %llu\n", (unsigned long long)len); | |
48c5303a PC |
7584 | break; |
7585 | } | |
949c47a0 DW |
7586 | case update_create_array: { |
7587 | struct imsm_update_create_array *u = (void *) update->buf; | |
ba2de7ba | 7588 | struct intel_dev *dv; |
54c2c1ea DW |
7589 | struct imsm_dev *dev = &u->dev; |
7590 | struct imsm_map *map = get_imsm_map(dev, 0); | |
7591 | struct dl *dl; | |
7592 | struct disk_info *inf; | |
7593 | int i; | |
7594 | int activate = 0; | |
949c47a0 | 7595 | |
54c2c1ea DW |
7596 | inf = get_disk_info(u); |
7597 | len = sizeof_imsm_dev(dev, 1); | |
ba2de7ba DW |
7598 | /* allocate a new super->devlist entry */ |
7599 | dv = malloc(sizeof(*dv)); | |
7600 | if (dv) { | |
7601 | dv->dev = malloc(len); | |
7602 | if (dv->dev) | |
7603 | update->space = dv; | |
7604 | else { | |
7605 | free(dv); | |
7606 | update->space = NULL; | |
7607 | } | |
7608 | } | |
949c47a0 | 7609 | |
54c2c1ea DW |
7610 | /* count how many spares will be converted to members */ |
7611 | for (i = 0; i < map->num_members; i++) { | |
7612 | dl = serial_to_dl(inf[i].serial, super); | |
7613 | if (!dl) { | |
7614 | /* hmm maybe it failed?, nothing we can do about | |
7615 | * it here | |
7616 | */ | |
7617 | continue; | |
7618 | } | |
7619 | if (count_memberships(dl, super) == 0) | |
7620 | activate++; | |
7621 | } | |
7622 | len += activate * sizeof(struct imsm_disk); | |
949c47a0 DW |
7623 | break; |
7624 | default: | |
7625 | break; | |
7626 | } | |
7627 | } | |
8273f55e | 7628 | |
4d7b1503 DW |
7629 | /* check if we need a larger metadata buffer */ |
7630 | if (super->next_buf) | |
7631 | buf_len = super->next_len; | |
7632 | else | |
7633 | buf_len = super->len; | |
7634 | ||
7635 | if (__le32_to_cpu(mpb->mpb_size) + len > buf_len) { | |
7636 | /* ok we need a larger buf than what is currently allocated | |
7637 | * if this allocation fails process_update will notice that | |
7638 | * ->next_len is set and ->next_buf is NULL | |
7639 | */ | |
7640 | buf_len = ROUND_UP(__le32_to_cpu(mpb->mpb_size) + len, 512); | |
7641 | if (super->next_buf) | |
7642 | free(super->next_buf); | |
7643 | ||
7644 | super->next_len = buf_len; | |
1f45a8ad DW |
7645 | if (posix_memalign(&super->next_buf, 512, buf_len) == 0) |
7646 | memset(super->next_buf, 0, buf_len); | |
7647 | else | |
4d7b1503 DW |
7648 | super->next_buf = NULL; |
7649 | } | |
8273f55e DW |
7650 | } |
7651 | ||
ae6aad82 | 7652 | /* must be called while manager is quiesced */ |
f21e18ca | 7653 | static void imsm_delete(struct intel_super *super, struct dl **dlp, unsigned index) |
ae6aad82 DW |
7654 | { |
7655 | struct imsm_super *mpb = super->anchor; | |
ae6aad82 DW |
7656 | struct dl *iter; |
7657 | struct imsm_dev *dev; | |
7658 | struct imsm_map *map; | |
24565c9a DW |
7659 | int i, j, num_members; |
7660 | __u32 ord; | |
ae6aad82 | 7661 | |
24565c9a DW |
7662 | dprintf("%s: deleting device[%d] from imsm_super\n", |
7663 | __func__, index); | |
ae6aad82 DW |
7664 | |
7665 | /* shift all indexes down one */ | |
7666 | for (iter = super->disks; iter; iter = iter->next) | |
f21e18ca | 7667 | if (iter->index > (int)index) |
ae6aad82 | 7668 | iter->index--; |
47ee5a45 | 7669 | for (iter = super->missing; iter; iter = iter->next) |
f21e18ca | 7670 | if (iter->index > (int)index) |
47ee5a45 | 7671 | iter->index--; |
ae6aad82 DW |
7672 | |
7673 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
7674 | dev = get_imsm_dev(super, i); | |
7675 | map = get_imsm_map(dev, 0); | |
24565c9a DW |
7676 | num_members = map->num_members; |
7677 | for (j = 0; j < num_members; j++) { | |
7678 | /* update ord entries being careful not to propagate | |
7679 | * ord-flags to the first map | |
7680 | */ | |
98130f40 | 7681 | ord = get_imsm_ord_tbl_ent(dev, j, -1); |
ae6aad82 | 7682 | |
24565c9a DW |
7683 | if (ord_to_idx(ord) <= index) |
7684 | continue; | |
ae6aad82 | 7685 | |
24565c9a DW |
7686 | map = get_imsm_map(dev, 0); |
7687 | set_imsm_ord_tbl_ent(map, j, ord_to_idx(ord - 1)); | |
7688 | map = get_imsm_map(dev, 1); | |
7689 | if (map) | |
7690 | set_imsm_ord_tbl_ent(map, j, ord - 1); | |
ae6aad82 DW |
7691 | } |
7692 | } | |
7693 | ||
7694 | mpb->num_disks--; | |
7695 | super->updates_pending++; | |
24565c9a DW |
7696 | if (*dlp) { |
7697 | struct dl *dl = *dlp; | |
7698 | ||
7699 | *dlp = (*dlp)->next; | |
7700 | __free_imsm_disk(dl); | |
7701 | } | |
ae6aad82 | 7702 | } |
9e2d750d | 7703 | #endif /* MDASSEMBLE */ |
687629c2 AK |
7704 | /******************************************************************************* |
7705 | * Function: open_backup_targets | |
7706 | * Description: Function opens file descriptors for all devices given in | |
7707 | * info->devs | |
7708 | * Parameters: | |
7709 | * info : general array info | |
7710 | * raid_disks : number of disks | |
7711 | * raid_fds : table of device's file descriptors | |
7712 | * Returns: | |
7713 | * 0 : success | |
7714 | * -1 : fail | |
7715 | ******************************************************************************/ | |
7716 | int open_backup_targets(struct mdinfo *info, int raid_disks, int *raid_fds) | |
7717 | { | |
7718 | struct mdinfo *sd; | |
7719 | ||
7720 | for (sd = info->devs ; sd ; sd = sd->next) { | |
7721 | char *dn; | |
7722 | ||
7723 | if (sd->disk.state & (1<<MD_DISK_FAULTY)) { | |
7724 | dprintf("disk is faulty!!\n"); | |
7725 | continue; | |
7726 | } | |
7727 | ||
7728 | if ((sd->disk.raid_disk >= raid_disks) || | |
7729 | (sd->disk.raid_disk < 0)) | |
7730 | continue; | |
7731 | ||
7732 | dn = map_dev(sd->disk.major, | |
7733 | sd->disk.minor, 1); | |
7734 | raid_fds[sd->disk.raid_disk] = dev_open(dn, O_RDWR); | |
7735 | if (raid_fds[sd->disk.raid_disk] < 0) { | |
7736 | fprintf(stderr, "cannot open component\n"); | |
7737 | return -1; | |
7738 | } | |
7739 | } | |
7740 | return 0; | |
7741 | } | |
7742 | ||
9e2d750d | 7743 | #ifndef MDASSEMBLE |
687629c2 AK |
7744 | /******************************************************************************* |
7745 | * Function: init_migr_record_imsm | |
7746 | * Description: Function inits imsm migration record | |
7747 | * Parameters: | |
7748 | * super : imsm internal array info | |
7749 | * dev : device under migration | |
7750 | * info : general array info to find the smallest device | |
7751 | * Returns: | |
7752 | * none | |
7753 | ******************************************************************************/ | |
7754 | void init_migr_record_imsm(struct supertype *st, struct imsm_dev *dev, | |
7755 | struct mdinfo *info) | |
7756 | { | |
7757 | struct intel_super *super = st->sb; | |
7758 | struct migr_record *migr_rec = super->migr_rec; | |
7759 | int new_data_disks; | |
7760 | unsigned long long dsize, dev_sectors; | |
7761 | long long unsigned min_dev_sectors = -1LLU; | |
7762 | struct mdinfo *sd; | |
7763 | char nm[30]; | |
7764 | int fd; | |
7765 | struct imsm_map *map_dest = get_imsm_map(dev, 0); | |
7766 | struct imsm_map *map_src = get_imsm_map(dev, 1); | |
7767 | unsigned long long num_migr_units; | |
3ef4403c | 7768 | unsigned long long array_blocks; |
687629c2 AK |
7769 | |
7770 | memset(migr_rec, 0, sizeof(struct migr_record)); | |
7771 | migr_rec->family_num = __cpu_to_le32(super->anchor->family_num); | |
7772 | ||
7773 | /* only ascending reshape supported now */ | |
7774 | migr_rec->ascending_migr = __cpu_to_le32(1); | |
7775 | ||
7776 | migr_rec->dest_depth_per_unit = GEN_MIGR_AREA_SIZE / | |
7777 | max(map_dest->blocks_per_strip, map_src->blocks_per_strip); | |
7778 | migr_rec->dest_depth_per_unit *= map_dest->blocks_per_strip; | |
7779 | new_data_disks = imsm_num_data_members(dev, 0); | |
7780 | migr_rec->blocks_per_unit = | |
7781 | __cpu_to_le32(migr_rec->dest_depth_per_unit * new_data_disks); | |
7782 | migr_rec->dest_depth_per_unit = | |
7783 | __cpu_to_le32(migr_rec->dest_depth_per_unit); | |
3ef4403c | 7784 | array_blocks = info->component_size * new_data_disks; |
687629c2 AK |
7785 | num_migr_units = |
7786 | array_blocks / __le32_to_cpu(migr_rec->blocks_per_unit); | |
7787 | ||
7788 | if (array_blocks % __le32_to_cpu(migr_rec->blocks_per_unit)) | |
7789 | num_migr_units++; | |
7790 | migr_rec->num_migr_units = __cpu_to_le32(num_migr_units); | |
7791 | ||
7792 | migr_rec->post_migr_vol_cap = dev->size_low; | |
7793 | migr_rec->post_migr_vol_cap_hi = dev->size_high; | |
7794 | ||
7795 | ||
7796 | /* Find the smallest dev */ | |
7797 | for (sd = info->devs ; sd ; sd = sd->next) { | |
7798 | sprintf(nm, "%d:%d", sd->disk.major, sd->disk.minor); | |
7799 | fd = dev_open(nm, O_RDONLY); | |
7800 | if (fd < 0) | |
7801 | continue; | |
7802 | get_dev_size(fd, NULL, &dsize); | |
7803 | dev_sectors = dsize / 512; | |
7804 | if (dev_sectors < min_dev_sectors) | |
7805 | min_dev_sectors = dev_sectors; | |
7806 | close(fd); | |
7807 | } | |
7808 | migr_rec->ckpt_area_pba = __cpu_to_le32(min_dev_sectors - | |
7809 | RAID_DISK_RESERVED_BLOCKS_IMSM_HI); | |
7810 | ||
7811 | write_imsm_migr_rec(st); | |
7812 | ||
7813 | return; | |
7814 | } | |
7815 | ||
7816 | /******************************************************************************* | |
7817 | * Function: save_backup_imsm | |
7818 | * Description: Function saves critical data stripes to Migration Copy Area | |
7819 | * and updates the current migration unit status. | |
7820 | * Use restore_stripes() to form a destination stripe, | |
7821 | * and to write it to the Copy Area. | |
7822 | * Parameters: | |
7823 | * st : supertype information | |
aea93171 | 7824 | * dev : imsm device that backup is saved for |
687629c2 AK |
7825 | * info : general array info |
7826 | * buf : input buffer | |
687629c2 AK |
7827 | * length : length of data to backup (blocks_per_unit) |
7828 | * Returns: | |
7829 | * 0 : success | |
7830 | *, -1 : fail | |
7831 | ******************************************************************************/ | |
7832 | int save_backup_imsm(struct supertype *st, | |
7833 | struct imsm_dev *dev, | |
7834 | struct mdinfo *info, | |
7835 | void *buf, | |
687629c2 AK |
7836 | int length) |
7837 | { | |
7838 | int rv = -1; | |
7839 | struct intel_super *super = st->sb; | |
7840 | unsigned long long *target_offsets = NULL; | |
7841 | int *targets = NULL; | |
7842 | int i; | |
7843 | struct imsm_map *map_dest = get_imsm_map(dev, 0); | |
7844 | int new_disks = map_dest->num_members; | |
ab724b98 AK |
7845 | int dest_layout = 0; |
7846 | int dest_chunk; | |
d1877f69 AK |
7847 | unsigned long long start; |
7848 | int data_disks = imsm_num_data_members(dev, 0); | |
687629c2 AK |
7849 | |
7850 | targets = malloc(new_disks * sizeof(int)); | |
7851 | if (!targets) | |
7852 | goto abort; | |
7853 | ||
7e45b550 AK |
7854 | for (i = 0; i < new_disks; i++) |
7855 | targets[i] = -1; | |
7856 | ||
687629c2 AK |
7857 | target_offsets = malloc(new_disks * sizeof(unsigned long long)); |
7858 | if (!target_offsets) | |
7859 | goto abort; | |
7860 | ||
d1877f69 | 7861 | start = info->reshape_progress * 512; |
687629c2 | 7862 | for (i = 0; i < new_disks; i++) { |
687629c2 AK |
7863 | target_offsets[i] = (unsigned long long) |
7864 | __le32_to_cpu(super->migr_rec->ckpt_area_pba) * 512; | |
d1877f69 AK |
7865 | /* move back copy area adderss, it will be moved forward |
7866 | * in restore_stripes() using start input variable | |
7867 | */ | |
7868 | target_offsets[i] -= start/data_disks; | |
687629c2 AK |
7869 | } |
7870 | ||
7871 | if (open_backup_targets(info, new_disks, targets)) | |
7872 | goto abort; | |
7873 | ||
68eb8bc6 | 7874 | dest_layout = imsm_level_to_layout(map_dest->raid_level); |
ab724b98 AK |
7875 | dest_chunk = __le16_to_cpu(map_dest->blocks_per_strip) * 512; |
7876 | ||
687629c2 AK |
7877 | if (restore_stripes(targets, /* list of dest devices */ |
7878 | target_offsets, /* migration record offsets */ | |
7879 | new_disks, | |
ab724b98 AK |
7880 | dest_chunk, |
7881 | map_dest->raid_level, | |
7882 | dest_layout, | |
7883 | -1, /* source backup file descriptor */ | |
7884 | 0, /* input buf offset | |
7885 | * always 0 buf is already offseted */ | |
d1877f69 | 7886 | start, |
687629c2 AK |
7887 | length, |
7888 | buf) != 0) { | |
7889 | fprintf(stderr, Name ": Error restoring stripes\n"); | |
7890 | goto abort; | |
7891 | } | |
7892 | ||
7893 | rv = 0; | |
7894 | ||
7895 | abort: | |
7896 | if (targets) { | |
7897 | for (i = 0; i < new_disks; i++) | |
7898 | if (targets[i] >= 0) | |
7899 | close(targets[i]); | |
7900 | free(targets); | |
7901 | } | |
7902 | free(target_offsets); | |
7903 | ||
7904 | return rv; | |
7905 | } | |
7906 | ||
7907 | /******************************************************************************* | |
7908 | * Function: save_checkpoint_imsm | |
7909 | * Description: Function called for current unit status update | |
7910 | * in the migration record. It writes it to disk. | |
7911 | * Parameters: | |
7912 | * super : imsm internal array info | |
7913 | * info : general array info | |
7914 | * Returns: | |
7915 | * 0: success | |
7916 | * 1: failure | |
0228d92c AK |
7917 | * 2: failure, means no valid migration record |
7918 | * / no general migration in progress / | |
687629c2 AK |
7919 | ******************************************************************************/ |
7920 | int save_checkpoint_imsm(struct supertype *st, struct mdinfo *info, int state) | |
7921 | { | |
7922 | struct intel_super *super = st->sb; | |
f8b72ef5 AK |
7923 | unsigned long long blocks_per_unit; |
7924 | unsigned long long curr_migr_unit; | |
7925 | ||
2e062e82 AK |
7926 | if (load_imsm_migr_rec(super, info) != 0) { |
7927 | dprintf("imsm: ERROR: Cannot read migration record " | |
7928 | "for checkpoint save.\n"); | |
7929 | return 1; | |
7930 | } | |
7931 | ||
f8b72ef5 AK |
7932 | blocks_per_unit = __le32_to_cpu(super->migr_rec->blocks_per_unit); |
7933 | if (blocks_per_unit == 0) { | |
0228d92c AK |
7934 | dprintf("imsm: no migration in progress.\n"); |
7935 | return 2; | |
687629c2 | 7936 | } |
f8b72ef5 AK |
7937 | curr_migr_unit = info->reshape_progress / blocks_per_unit; |
7938 | /* check if array is alligned to copy area | |
7939 | * if it is not alligned, add one to current migration unit value | |
7940 | * this can happend on array reshape finish only | |
7941 | */ | |
7942 | if (info->reshape_progress % blocks_per_unit) | |
7943 | curr_migr_unit++; | |
687629c2 AK |
7944 | |
7945 | super->migr_rec->curr_migr_unit = | |
f8b72ef5 | 7946 | __cpu_to_le32(curr_migr_unit); |
687629c2 AK |
7947 | super->migr_rec->rec_status = __cpu_to_le32(state); |
7948 | super->migr_rec->dest_1st_member_lba = | |
f8b72ef5 AK |
7949 | __cpu_to_le32(curr_migr_unit * |
7950 | __le32_to_cpu(super->migr_rec->dest_depth_per_unit)); | |
687629c2 AK |
7951 | if (write_imsm_migr_rec(st) < 0) { |
7952 | dprintf("imsm: Cannot write migration record " | |
7953 | "outside backup area\n"); | |
7954 | return 1; | |
7955 | } | |
7956 | ||
7957 | return 0; | |
7958 | } | |
7959 | ||
276d77db AK |
7960 | /******************************************************************************* |
7961 | * Function: recover_backup_imsm | |
7962 | * Description: Function recovers critical data from the Migration Copy Area | |
7963 | * while assembling an array. | |
7964 | * Parameters: | |
7965 | * super : imsm internal array info | |
7966 | * info : general array info | |
7967 | * Returns: | |
7968 | * 0 : success (or there is no data to recover) | |
7969 | * 1 : fail | |
7970 | ******************************************************************************/ | |
7971 | int recover_backup_imsm(struct supertype *st, struct mdinfo *info) | |
7972 | { | |
7973 | struct intel_super *super = st->sb; | |
7974 | struct migr_record *migr_rec = super->migr_rec; | |
7975 | struct imsm_map *map_dest = NULL; | |
7976 | struct intel_dev *id = NULL; | |
7977 | unsigned long long read_offset; | |
7978 | unsigned long long write_offset; | |
7979 | unsigned unit_len; | |
7980 | int *targets = NULL; | |
7981 | int new_disks, i, err; | |
7982 | char *buf = NULL; | |
7983 | int retval = 1; | |
7984 | unsigned long curr_migr_unit = __le32_to_cpu(migr_rec->curr_migr_unit); | |
7985 | unsigned long num_migr_units = __le32_to_cpu(migr_rec->num_migr_units); | |
276d77db | 7986 | char buffer[20]; |
6c3560c0 AK |
7987 | int skipped_disks = 0; |
7988 | int max_degradation; | |
276d77db AK |
7989 | |
7990 | err = sysfs_get_str(info, NULL, "array_state", (char *)buffer, 20); | |
7991 | if (err < 1) | |
7992 | return 1; | |
7993 | ||
7994 | /* recover data only during assemblation */ | |
7995 | if (strncmp(buffer, "inactive", 8) != 0) | |
7996 | return 0; | |
7997 | /* no data to recover */ | |
7998 | if (__le32_to_cpu(migr_rec->rec_status) == UNIT_SRC_NORMAL) | |
7999 | return 0; | |
8000 | if (curr_migr_unit >= num_migr_units) | |
8001 | return 1; | |
8002 | ||
8003 | /* find device during reshape */ | |
8004 | for (id = super->devlist; id; id = id->next) | |
8005 | if (is_gen_migration(id->dev)) | |
8006 | break; | |
8007 | if (id == NULL) | |
8008 | return 1; | |
8009 | ||
8010 | map_dest = get_imsm_map(id->dev, 0); | |
8011 | new_disks = map_dest->num_members; | |
6c3560c0 | 8012 | max_degradation = new_disks - imsm_num_data_members(id->dev, 0); |
276d77db AK |
8013 | |
8014 | read_offset = (unsigned long long) | |
8015 | __le32_to_cpu(migr_rec->ckpt_area_pba) * 512; | |
8016 | ||
8017 | write_offset = ((unsigned long long) | |
8018 | __le32_to_cpu(migr_rec->dest_1st_member_lba) + | |
75b69ea4 | 8019 | __le32_to_cpu(map_dest->pba_of_lba0)) * 512; |
276d77db AK |
8020 | |
8021 | unit_len = __le32_to_cpu(migr_rec->dest_depth_per_unit) * 512; | |
8022 | if (posix_memalign((void **)&buf, 512, unit_len) != 0) | |
8023 | goto abort; | |
8024 | targets = malloc(new_disks * sizeof(int)); | |
8025 | if (!targets) | |
8026 | goto abort; | |
8027 | ||
8028 | open_backup_targets(info, new_disks, targets); | |
8029 | ||
8030 | for (i = 0; i < new_disks; i++) { | |
6c3560c0 AK |
8031 | if (targets[i] < 0) { |
8032 | skipped_disks++; | |
8033 | continue; | |
8034 | } | |
276d77db AK |
8035 | if (lseek64(targets[i], read_offset, SEEK_SET) < 0) { |
8036 | fprintf(stderr, | |
8037 | Name ": Cannot seek to block: %s\n", | |
8038 | strerror(errno)); | |
8039 | goto abort; | |
8040 | } | |
9ec11d1a | 8041 | if ((unsigned)read(targets[i], buf, unit_len) != unit_len) { |
276d77db AK |
8042 | fprintf(stderr, |
8043 | Name ": Cannot read copy area block: %s\n", | |
8044 | strerror(errno)); | |
8045 | goto abort; | |
8046 | } | |
8047 | if (lseek64(targets[i], write_offset, SEEK_SET) < 0) { | |
8048 | fprintf(stderr, | |
8049 | Name ": Cannot seek to block: %s\n", | |
8050 | strerror(errno)); | |
8051 | goto abort; | |
8052 | } | |
9ec11d1a | 8053 | if ((unsigned)write(targets[i], buf, unit_len) != unit_len) { |
276d77db AK |
8054 | fprintf(stderr, |
8055 | Name ": Cannot restore block: %s\n", | |
8056 | strerror(errno)); | |
8057 | goto abort; | |
8058 | } | |
8059 | } | |
8060 | ||
6c3560c0 AK |
8061 | if (skipped_disks > max_degradation) { |
8062 | fprintf(stderr, | |
8063 | Name ": Cannot restore data from backup." | |
8064 | " Too many failed disks\n"); | |
8065 | goto abort; | |
8066 | } | |
8067 | ||
befb629b AK |
8068 | if (save_checkpoint_imsm(st, info, UNIT_SRC_NORMAL)) { |
8069 | /* ignore error == 2, this can mean end of reshape here | |
8070 | */ | |
8071 | dprintf("imsm: Cannot write checkpoint to " | |
8072 | "migration record (UNIT_SRC_NORMAL) during restart\n"); | |
8073 | } else | |
276d77db | 8074 | retval = 0; |
276d77db AK |
8075 | |
8076 | abort: | |
8077 | if (targets) { | |
8078 | for (i = 0; i < new_disks; i++) | |
8079 | if (targets[i]) | |
8080 | close(targets[i]); | |
8081 | free(targets); | |
8082 | } | |
8083 | free(buf); | |
8084 | return retval; | |
8085 | } | |
8086 | ||
2cda7640 ML |
8087 | static char disk_by_path[] = "/dev/disk/by-path/"; |
8088 | ||
8089 | static const char *imsm_get_disk_controller_domain(const char *path) | |
8090 | { | |
2cda7640 | 8091 | char disk_path[PATH_MAX]; |
96234762 LM |
8092 | char *drv=NULL; |
8093 | struct stat st; | |
2cda7640 | 8094 | |
96234762 LM |
8095 | strncpy(disk_path, disk_by_path, PATH_MAX - 1); |
8096 | strncat(disk_path, path, PATH_MAX - strlen(disk_path) - 1); | |
8097 | if (stat(disk_path, &st) == 0) { | |
8098 | struct sys_dev* hba; | |
8099 | char *path=NULL; | |
8100 | ||
8101 | path = devt_to_devpath(st.st_rdev); | |
8102 | if (path == NULL) | |
8103 | return "unknown"; | |
8104 | hba = find_disk_attached_hba(-1, path); | |
8105 | if (hba && hba->type == SYS_DEV_SAS) | |
8106 | drv = "isci"; | |
8107 | else if (hba && hba->type == SYS_DEV_SATA) | |
8108 | drv = "ahci"; | |
8109 | else | |
8110 | drv = "unknown"; | |
8111 | dprintf("path: %s hba: %s attached: %s\n", | |
8112 | path, (hba) ? hba->path : "NULL", drv); | |
8113 | free(path); | |
8114 | if (hba) | |
8115 | free_sys_dev(&hba); | |
2cda7640 | 8116 | } |
96234762 | 8117 | return drv; |
2cda7640 ML |
8118 | } |
8119 | ||
78b10e66 N |
8120 | static int imsm_find_array_minor_by_subdev(int subdev, int container, int *minor) |
8121 | { | |
8122 | char subdev_name[20]; | |
8123 | struct mdstat_ent *mdstat; | |
8124 | ||
8125 | sprintf(subdev_name, "%d", subdev); | |
8126 | mdstat = mdstat_by_subdev(subdev_name, container); | |
8127 | if (!mdstat) | |
8128 | return -1; | |
8129 | ||
8130 | *minor = mdstat->devnum; | |
8131 | free_mdstat(mdstat); | |
8132 | return 0; | |
8133 | } | |
8134 | ||
8135 | static int imsm_reshape_is_allowed_on_container(struct supertype *st, | |
8136 | struct geo_params *geo, | |
8137 | int *old_raid_disks) | |
8138 | { | |
694575e7 KW |
8139 | /* currently we only support increasing the number of devices |
8140 | * for a container. This increases the number of device for each | |
8141 | * member array. They must all be RAID0 or RAID5. | |
8142 | */ | |
78b10e66 N |
8143 | int ret_val = 0; |
8144 | struct mdinfo *info, *member; | |
8145 | int devices_that_can_grow = 0; | |
8146 | ||
8147 | dprintf("imsm: imsm_reshape_is_allowed_on_container(ENTER): " | |
8148 | "st->devnum = (%i)\n", | |
8149 | st->devnum); | |
8150 | ||
8151 | if (geo->size != -1 || | |
8152 | geo->level != UnSet || | |
8153 | geo->layout != UnSet || | |
8154 | geo->chunksize != 0 || | |
8155 | geo->raid_disks == UnSet) { | |
8156 | dprintf("imsm: Container operation is allowed for " | |
8157 | "raid disks number change only.\n"); | |
8158 | return ret_val; | |
8159 | } | |
8160 | ||
8161 | info = container_content_imsm(st, NULL); | |
8162 | for (member = info; member; member = member->next) { | |
8163 | int result; | |
8164 | int minor; | |
8165 | ||
8166 | dprintf("imsm: checking device_num: %i\n", | |
8167 | member->container_member); | |
8168 | ||
d7d205bd | 8169 | if (geo->raid_disks <= member->array.raid_disks) { |
78b10e66 N |
8170 | /* we work on container for Online Capacity Expansion |
8171 | * only so raid_disks has to grow | |
8172 | */ | |
8173 | dprintf("imsm: for container operation raid disks " | |
8174 | "increase is required\n"); | |
8175 | break; | |
8176 | } | |
8177 | ||
8178 | if ((info->array.level != 0) && | |
8179 | (info->array.level != 5)) { | |
8180 | /* we cannot use this container with other raid level | |
8181 | */ | |
690aae1a | 8182 | dprintf("imsm: for container operation wrong" |
78b10e66 N |
8183 | " raid level (%i) detected\n", |
8184 | info->array.level); | |
8185 | break; | |
8186 | } else { | |
8187 | /* check for platform support | |
8188 | * for this raid level configuration | |
8189 | */ | |
8190 | struct intel_super *super = st->sb; | |
8191 | if (!is_raid_level_supported(super->orom, | |
8192 | member->array.level, | |
8193 | geo->raid_disks)) { | |
690aae1a | 8194 | dprintf("platform does not support raid%d with" |
78b10e66 N |
8195 | " %d disk%s\n", |
8196 | info->array.level, | |
8197 | geo->raid_disks, | |
8198 | geo->raid_disks > 1 ? "s" : ""); | |
8199 | break; | |
8200 | } | |
2a4a08e7 AK |
8201 | /* check if component size is aligned to chunk size |
8202 | */ | |
8203 | if (info->component_size % | |
8204 | (info->array.chunk_size/512)) { | |
8205 | dprintf("Component size is not aligned to " | |
8206 | "chunk size\n"); | |
8207 | break; | |
8208 | } | |
78b10e66 N |
8209 | } |
8210 | ||
8211 | if (*old_raid_disks && | |
8212 | info->array.raid_disks != *old_raid_disks) | |
8213 | break; | |
8214 | *old_raid_disks = info->array.raid_disks; | |
8215 | ||
8216 | /* All raid5 and raid0 volumes in container | |
8217 | * have to be ready for Online Capacity Expansion | |
8218 | * so they need to be assembled. We have already | |
8219 | * checked that no recovery etc is happening. | |
8220 | */ | |
8221 | result = imsm_find_array_minor_by_subdev(member->container_member, | |
8222 | st->container_dev, | |
8223 | &minor); | |
8224 | if (result < 0) { | |
8225 | dprintf("imsm: cannot find array\n"); | |
8226 | break; | |
8227 | } | |
8228 | devices_that_can_grow++; | |
8229 | } | |
8230 | sysfs_free(info); | |
8231 | if (!member && devices_that_can_grow) | |
8232 | ret_val = 1; | |
8233 | ||
8234 | if (ret_val) | |
8235 | dprintf("\tContainer operation allowed\n"); | |
8236 | else | |
8237 | dprintf("\tError: %i\n", ret_val); | |
8238 | ||
8239 | return ret_val; | |
8240 | } | |
8241 | ||
8242 | /* Function: get_spares_for_grow | |
8243 | * Description: Allocates memory and creates list of spare devices | |
8244 | * avaliable in container. Checks if spare drive size is acceptable. | |
8245 | * Parameters: Pointer to the supertype structure | |
8246 | * Returns: Pointer to the list of spare devices (mdinfo structure) on success, | |
8247 | * NULL if fail | |
8248 | */ | |
8249 | static struct mdinfo *get_spares_for_grow(struct supertype *st) | |
8250 | { | |
78b10e66 | 8251 | unsigned long long min_size = min_acceptable_spare_size_imsm(st); |
326727d9 | 8252 | return container_choose_spares(st, min_size, NULL, NULL, NULL, 0); |
78b10e66 N |
8253 | } |
8254 | ||
8255 | /****************************************************************************** | |
8256 | * function: imsm_create_metadata_update_for_reshape | |
8257 | * Function creates update for whole IMSM container. | |
8258 | * | |
8259 | ******************************************************************************/ | |
8260 | static int imsm_create_metadata_update_for_reshape( | |
8261 | struct supertype *st, | |
8262 | struct geo_params *geo, | |
8263 | int old_raid_disks, | |
8264 | struct imsm_update_reshape **updatep) | |
8265 | { | |
8266 | struct intel_super *super = st->sb; | |
8267 | struct imsm_super *mpb = super->anchor; | |
8268 | int update_memory_size = 0; | |
8269 | struct imsm_update_reshape *u = NULL; | |
8270 | struct mdinfo *spares = NULL; | |
8271 | int i; | |
8272 | int delta_disks = 0; | |
bbd24d86 | 8273 | struct mdinfo *dev; |
78b10e66 N |
8274 | |
8275 | dprintf("imsm_update_metadata_for_reshape(enter) raid_disks = %i\n", | |
8276 | geo->raid_disks); | |
8277 | ||
8278 | delta_disks = geo->raid_disks - old_raid_disks; | |
8279 | ||
8280 | /* size of all update data without anchor */ | |
8281 | update_memory_size = sizeof(struct imsm_update_reshape); | |
8282 | ||
8283 | /* now add space for spare disks that we need to add. */ | |
8284 | update_memory_size += sizeof(u->new_disks[0]) * (delta_disks - 1); | |
8285 | ||
8286 | u = calloc(1, update_memory_size); | |
8287 | if (u == NULL) { | |
8288 | dprintf("error: " | |
8289 | "cannot get memory for imsm_update_reshape update\n"); | |
8290 | return 0; | |
8291 | } | |
8292 | u->type = update_reshape_container_disks; | |
8293 | u->old_raid_disks = old_raid_disks; | |
8294 | u->new_raid_disks = geo->raid_disks; | |
8295 | ||
8296 | /* now get spare disks list | |
8297 | */ | |
8298 | spares = get_spares_for_grow(st); | |
8299 | ||
8300 | if (spares == NULL | |
8301 | || delta_disks > spares->array.spare_disks) { | |
e14e5960 KW |
8302 | fprintf(stderr, Name ": imsm: ERROR: Cannot get spare devices " |
8303 | "for %s.\n", geo->dev_name); | |
e4c72d1d | 8304 | i = -1; |
78b10e66 N |
8305 | goto abort; |
8306 | } | |
8307 | ||
8308 | /* we have got spares | |
8309 | * update disk list in imsm_disk list table in anchor | |
8310 | */ | |
8311 | dprintf("imsm: %i spares are available.\n\n", | |
8312 | spares->array.spare_disks); | |
8313 | ||
bbd24d86 | 8314 | dev = spares->devs; |
78b10e66 | 8315 | for (i = 0; i < delta_disks; i++) { |
78b10e66 N |
8316 | struct dl *dl; |
8317 | ||
bbd24d86 AK |
8318 | if (dev == NULL) |
8319 | break; | |
78b10e66 N |
8320 | u->new_disks[i] = makedev(dev->disk.major, |
8321 | dev->disk.minor); | |
8322 | dl = get_disk_super(super, dev->disk.major, dev->disk.minor); | |
ee4beede AK |
8323 | dl->index = mpb->num_disks; |
8324 | mpb->num_disks++; | |
bbd24d86 | 8325 | dev = dev->next; |
78b10e66 | 8326 | } |
78b10e66 N |
8327 | |
8328 | abort: | |
8329 | /* free spares | |
8330 | */ | |
8331 | sysfs_free(spares); | |
8332 | ||
d677e0b8 | 8333 | dprintf("imsm: reshape update preparation :"); |
78b10e66 | 8334 | if (i == delta_disks) { |
d677e0b8 | 8335 | dprintf(" OK\n"); |
78b10e66 N |
8336 | *updatep = u; |
8337 | return update_memory_size; | |
8338 | } | |
8339 | free(u); | |
d677e0b8 | 8340 | dprintf(" Error\n"); |
78b10e66 N |
8341 | |
8342 | return 0; | |
8343 | } | |
8344 | ||
48c5303a PC |
8345 | /****************************************************************************** |
8346 | * function: imsm_create_metadata_update_for_migration() | |
8347 | * Creates update for IMSM array. | |
8348 | * | |
8349 | ******************************************************************************/ | |
8350 | static int imsm_create_metadata_update_for_migration( | |
8351 | struct supertype *st, | |
8352 | struct geo_params *geo, | |
8353 | struct imsm_update_reshape_migration **updatep) | |
8354 | { | |
8355 | struct intel_super *super = st->sb; | |
8356 | int update_memory_size = 0; | |
8357 | struct imsm_update_reshape_migration *u = NULL; | |
8358 | struct imsm_dev *dev; | |
8359 | int previous_level = -1; | |
8360 | ||
8361 | dprintf("imsm_create_metadata_update_for_migration(enter)" | |
8362 | " New Level = %i\n", geo->level); | |
8363 | ||
8364 | /* size of all update data without anchor */ | |
8365 | update_memory_size = sizeof(struct imsm_update_reshape_migration); | |
8366 | ||
8367 | u = calloc(1, update_memory_size); | |
8368 | if (u == NULL) { | |
8369 | dprintf("error: cannot get memory for " | |
8370 | "imsm_create_metadata_update_for_migration\n"); | |
8371 | return 0; | |
8372 | } | |
8373 | u->type = update_reshape_migration; | |
8374 | u->subdev = super->current_vol; | |
8375 | u->new_level = geo->level; | |
8376 | u->new_layout = geo->layout; | |
8377 | u->new_raid_disks = u->old_raid_disks = geo->raid_disks; | |
8378 | u->new_disks[0] = -1; | |
4bba0439 | 8379 | u->new_chunksize = -1; |
48c5303a PC |
8380 | |
8381 | dev = get_imsm_dev(super, u->subdev); | |
8382 | if (dev) { | |
8383 | struct imsm_map *map; | |
8384 | ||
8385 | map = get_imsm_map(dev, 0); | |
4bba0439 PC |
8386 | if (map) { |
8387 | int current_chunk_size = | |
8388 | __le16_to_cpu(map->blocks_per_strip) / 2; | |
8389 | ||
8390 | if (geo->chunksize != current_chunk_size) { | |
8391 | u->new_chunksize = geo->chunksize / 1024; | |
8392 | dprintf("imsm: " | |
8393 | "chunk size change from %i to %i\n", | |
8394 | current_chunk_size, u->new_chunksize); | |
8395 | } | |
48c5303a | 8396 | previous_level = map->raid_level; |
4bba0439 | 8397 | } |
48c5303a PC |
8398 | } |
8399 | if ((geo->level == 5) && (previous_level == 0)) { | |
8400 | struct mdinfo *spares = NULL; | |
8401 | ||
8402 | u->new_raid_disks++; | |
8403 | spares = get_spares_for_grow(st); | |
8404 | if ((spares == NULL) || (spares->array.spare_disks < 1)) { | |
8405 | free(u); | |
8406 | sysfs_free(spares); | |
8407 | update_memory_size = 0; | |
8408 | dprintf("error: cannot get spare device " | |
8409 | "for requested migration"); | |
8410 | return 0; | |
8411 | } | |
8412 | sysfs_free(spares); | |
8413 | } | |
8414 | dprintf("imsm: reshape update preparation : OK\n"); | |
8415 | *updatep = u; | |
8416 | ||
8417 | return update_memory_size; | |
8418 | } | |
8419 | ||
8dd70bce AK |
8420 | static void imsm_update_metadata_locally(struct supertype *st, |
8421 | void *buf, int len) | |
8422 | { | |
8423 | struct metadata_update mu; | |
8424 | ||
8425 | mu.buf = buf; | |
8426 | mu.len = len; | |
8427 | mu.space = NULL; | |
8428 | mu.space_list = NULL; | |
8429 | mu.next = NULL; | |
8430 | imsm_prepare_update(st, &mu); | |
8431 | imsm_process_update(st, &mu); | |
8432 | ||
8433 | while (mu.space_list) { | |
8434 | void **space = mu.space_list; | |
8435 | mu.space_list = *space; | |
8436 | free(space); | |
8437 | } | |
8438 | } | |
78b10e66 | 8439 | |
471bceb6 | 8440 | /*************************************************************************** |
694575e7 | 8441 | * Function: imsm_analyze_change |
471bceb6 KW |
8442 | * Description: Function analyze change for single volume |
8443 | * and validate if transition is supported | |
694575e7 KW |
8444 | * Parameters: Geometry parameters, supertype structure |
8445 | * Returns: Operation type code on success, -1 if fail | |
471bceb6 KW |
8446 | ****************************************************************************/ |
8447 | enum imsm_reshape_type imsm_analyze_change(struct supertype *st, | |
8448 | struct geo_params *geo) | |
694575e7 | 8449 | { |
471bceb6 KW |
8450 | struct mdinfo info; |
8451 | int change = -1; | |
8452 | int check_devs = 0; | |
c21e737b | 8453 | int chunk; |
471bceb6 KW |
8454 | |
8455 | getinfo_super_imsm_volume(st, &info, NULL); | |
471bceb6 KW |
8456 | if ((geo->level != info.array.level) && |
8457 | (geo->level >= 0) && | |
8458 | (geo->level != UnSet)) { | |
8459 | switch (info.array.level) { | |
8460 | case 0: | |
8461 | if (geo->level == 5) { | |
b5347799 | 8462 | change = CH_MIGRATION; |
e13ce846 AK |
8463 | if (geo->layout != ALGORITHM_LEFT_ASYMMETRIC) { |
8464 | fprintf(stderr, | |
8465 | Name " Error. Requested Layout " | |
8466 | "not supported (left-asymmetric layout " | |
8467 | "is supported only)!\n"); | |
8468 | change = -1; | |
8469 | goto analyse_change_exit; | |
8470 | } | |
471bceb6 KW |
8471 | check_devs = 1; |
8472 | } | |
8473 | if (geo->level == 10) { | |
8474 | change = CH_TAKEOVER; | |
8475 | check_devs = 1; | |
8476 | } | |
dfe77a9e KW |
8477 | break; |
8478 | case 1: | |
8479 | if (geo->level == 0) { | |
8480 | change = CH_TAKEOVER; | |
8481 | check_devs = 1; | |
8482 | } | |
471bceb6 | 8483 | break; |
471bceb6 KW |
8484 | case 10: |
8485 | if (geo->level == 0) { | |
8486 | change = CH_TAKEOVER; | |
8487 | check_devs = 1; | |
8488 | } | |
8489 | break; | |
8490 | } | |
8491 | if (change == -1) { | |
8492 | fprintf(stderr, | |
8493 | Name " Error. Level Migration from %d to %d " | |
8494 | "not supported!\n", | |
8495 | info.array.level, geo->level); | |
8496 | goto analyse_change_exit; | |
8497 | } | |
8498 | } else | |
8499 | geo->level = info.array.level; | |
8500 | ||
8501 | if ((geo->layout != info.array.layout) | |
8502 | && ((geo->layout != UnSet) && (geo->layout != -1))) { | |
b5347799 | 8503 | change = CH_MIGRATION; |
471bceb6 KW |
8504 | if ((info.array.layout == 0) |
8505 | && (info.array.level == 5) | |
8506 | && (geo->layout == 5)) { | |
8507 | /* reshape 5 -> 4 */ | |
8508 | } else if ((info.array.layout == 5) | |
8509 | && (info.array.level == 5) | |
8510 | && (geo->layout == 0)) { | |
8511 | /* reshape 4 -> 5 */ | |
8512 | geo->layout = 0; | |
8513 | geo->level = 5; | |
8514 | } else { | |
8515 | fprintf(stderr, | |
8516 | Name " Error. Layout Migration from %d to %d " | |
8517 | "not supported!\n", | |
8518 | info.array.layout, geo->layout); | |
8519 | change = -1; | |
8520 | goto analyse_change_exit; | |
8521 | } | |
8522 | } else | |
8523 | geo->layout = info.array.layout; | |
8524 | ||
8525 | if ((geo->chunksize > 0) && (geo->chunksize != UnSet) | |
8526 | && (geo->chunksize != info.array.chunk_size)) | |
b5347799 | 8527 | change = CH_MIGRATION; |
471bceb6 KW |
8528 | else |
8529 | geo->chunksize = info.array.chunk_size; | |
8530 | ||
c21e737b | 8531 | chunk = geo->chunksize / 1024; |
471bceb6 KW |
8532 | if (!validate_geometry_imsm(st, |
8533 | geo->level, | |
8534 | geo->layout, | |
8535 | geo->raid_disks, | |
c21e737b | 8536 | &chunk, |
471bceb6 KW |
8537 | geo->size, |
8538 | 0, 0, 1)) | |
8539 | change = -1; | |
8540 | ||
8541 | if (check_devs) { | |
8542 | struct intel_super *super = st->sb; | |
8543 | struct imsm_super *mpb = super->anchor; | |
8544 | ||
8545 | if (mpb->num_raid_devs > 1) { | |
8546 | fprintf(stderr, | |
8547 | Name " Error. Cannot perform operation on %s" | |
8548 | "- for this operation it MUST be single " | |
8549 | "array in container\n", | |
8550 | geo->dev_name); | |
8551 | change = -1; | |
8552 | } | |
8553 | } | |
8554 | ||
8555 | analyse_change_exit: | |
8556 | ||
8557 | return change; | |
694575e7 KW |
8558 | } |
8559 | ||
bb025c2f KW |
8560 | int imsm_takeover(struct supertype *st, struct geo_params *geo) |
8561 | { | |
8562 | struct intel_super *super = st->sb; | |
8563 | struct imsm_update_takeover *u; | |
8564 | ||
8565 | u = malloc(sizeof(struct imsm_update_takeover)); | |
8566 | if (u == NULL) | |
8567 | return 1; | |
8568 | ||
8569 | u->type = update_takeover; | |
8570 | u->subarray = super->current_vol; | |
8571 | ||
8572 | /* 10->0 transition */ | |
8573 | if (geo->level == 0) | |
8574 | u->direction = R10_TO_R0; | |
8575 | ||
0529c688 KW |
8576 | /* 0->10 transition */ |
8577 | if (geo->level == 10) | |
8578 | u->direction = R0_TO_R10; | |
8579 | ||
bb025c2f KW |
8580 | /* update metadata locally */ |
8581 | imsm_update_metadata_locally(st, u, | |
8582 | sizeof(struct imsm_update_takeover)); | |
8583 | /* and possibly remotely */ | |
8584 | if (st->update_tail) | |
8585 | append_metadata_update(st, u, | |
8586 | sizeof(struct imsm_update_takeover)); | |
8587 | else | |
8588 | free(u); | |
8589 | ||
8590 | return 0; | |
8591 | } | |
8592 | ||
78b10e66 N |
8593 | static int imsm_reshape_super(struct supertype *st, long long size, int level, |
8594 | int layout, int chunksize, int raid_disks, | |
41784c88 AK |
8595 | int delta_disks, char *backup, char *dev, |
8596 | int verbose) | |
78b10e66 | 8597 | { |
78b10e66 N |
8598 | int ret_val = 1; |
8599 | struct geo_params geo; | |
8600 | ||
8601 | dprintf("imsm: reshape_super called.\n"); | |
8602 | ||
71204a50 | 8603 | memset(&geo, 0, sizeof(struct geo_params)); |
78b10e66 N |
8604 | |
8605 | geo.dev_name = dev; | |
694575e7 | 8606 | geo.dev_id = st->devnum; |
78b10e66 N |
8607 | geo.size = size; |
8608 | geo.level = level; | |
8609 | geo.layout = layout; | |
8610 | geo.chunksize = chunksize; | |
8611 | geo.raid_disks = raid_disks; | |
41784c88 AK |
8612 | if (delta_disks != UnSet) |
8613 | geo.raid_disks += delta_disks; | |
78b10e66 N |
8614 | |
8615 | dprintf("\tfor level : %i\n", geo.level); | |
8616 | dprintf("\tfor raid_disks : %i\n", geo.raid_disks); | |
8617 | ||
8618 | if (experimental() == 0) | |
8619 | return ret_val; | |
8620 | ||
78b10e66 | 8621 | if (st->container_dev == st->devnum) { |
694575e7 KW |
8622 | /* On container level we can only increase number of devices. */ |
8623 | dprintf("imsm: info: Container operation\n"); | |
78b10e66 | 8624 | int old_raid_disks = 0; |
6dc0be30 | 8625 | |
78b10e66 N |
8626 | if (imsm_reshape_is_allowed_on_container( |
8627 | st, &geo, &old_raid_disks)) { | |
8628 | struct imsm_update_reshape *u = NULL; | |
8629 | int len; | |
8630 | ||
8631 | len = imsm_create_metadata_update_for_reshape( | |
8632 | st, &geo, old_raid_disks, &u); | |
8633 | ||
ed08d51c AK |
8634 | if (len <= 0) { |
8635 | dprintf("imsm: Cannot prepare update\n"); | |
8636 | goto exit_imsm_reshape_super; | |
8637 | } | |
8638 | ||
8dd70bce AK |
8639 | ret_val = 0; |
8640 | /* update metadata locally */ | |
8641 | imsm_update_metadata_locally(st, u, len); | |
8642 | /* and possibly remotely */ | |
8643 | if (st->update_tail) | |
8644 | append_metadata_update(st, u, len); | |
8645 | else | |
ed08d51c | 8646 | free(u); |
8dd70bce | 8647 | |
694575e7 | 8648 | } else { |
e7ff7e40 AK |
8649 | fprintf(stderr, Name ": (imsm) Operation " |
8650 | "is not allowed on this container\n"); | |
694575e7 KW |
8651 | } |
8652 | } else { | |
8653 | /* On volume level we support following operations | |
471bceb6 KW |
8654 | * - takeover: raid10 -> raid0; raid0 -> raid10 |
8655 | * - chunk size migration | |
8656 | * - migration: raid5 -> raid0; raid0 -> raid5 | |
8657 | */ | |
8658 | struct intel_super *super = st->sb; | |
8659 | struct intel_dev *dev = super->devlist; | |
8660 | int change, devnum; | |
694575e7 | 8661 | dprintf("imsm: info: Volume operation\n"); |
471bceb6 KW |
8662 | /* find requested device */ |
8663 | while (dev) { | |
8664 | imsm_find_array_minor_by_subdev(dev->index, st->container_dev, &devnum); | |
8665 | if (devnum == geo.dev_id) | |
8666 | break; | |
8667 | dev = dev->next; | |
8668 | } | |
8669 | if (dev == NULL) { | |
8670 | fprintf(stderr, Name " Cannot find %s (%i) subarray\n", | |
8671 | geo.dev_name, geo.dev_id); | |
8672 | goto exit_imsm_reshape_super; | |
8673 | } | |
8674 | super->current_vol = dev->index; | |
694575e7 KW |
8675 | change = imsm_analyze_change(st, &geo); |
8676 | switch (change) { | |
471bceb6 | 8677 | case CH_TAKEOVER: |
bb025c2f | 8678 | ret_val = imsm_takeover(st, &geo); |
694575e7 | 8679 | break; |
48c5303a PC |
8680 | case CH_MIGRATION: { |
8681 | struct imsm_update_reshape_migration *u = NULL; | |
8682 | int len = | |
8683 | imsm_create_metadata_update_for_migration( | |
8684 | st, &geo, &u); | |
8685 | if (len < 1) { | |
8686 | dprintf("imsm: " | |
8687 | "Cannot prepare update\n"); | |
8688 | break; | |
8689 | } | |
471bceb6 | 8690 | ret_val = 0; |
48c5303a PC |
8691 | /* update metadata locally */ |
8692 | imsm_update_metadata_locally(st, u, len); | |
8693 | /* and possibly remotely */ | |
8694 | if (st->update_tail) | |
8695 | append_metadata_update(st, u, len); | |
8696 | else | |
8697 | free(u); | |
8698 | } | |
8699 | break; | |
471bceb6 KW |
8700 | default: |
8701 | ret_val = 1; | |
694575e7 | 8702 | } |
694575e7 | 8703 | } |
78b10e66 | 8704 | |
ed08d51c | 8705 | exit_imsm_reshape_super: |
78b10e66 N |
8706 | dprintf("imsm: reshape_super Exit code = %i\n", ret_val); |
8707 | return ret_val; | |
8708 | } | |
2cda7640 | 8709 | |
eee67a47 AK |
8710 | /******************************************************************************* |
8711 | * Function: wait_for_reshape_imsm | |
8712 | * Description: Function writes new sync_max value and waits until | |
8713 | * reshape process reach new position | |
8714 | * Parameters: | |
8715 | * sra : general array info | |
eee67a47 AK |
8716 | * ndata : number of disks in new array's layout |
8717 | * Returns: | |
8718 | * 0 : success, | |
8719 | * 1 : there is no reshape in progress, | |
8720 | * -1 : fail | |
8721 | ******************************************************************************/ | |
ae9f01f8 | 8722 | int wait_for_reshape_imsm(struct mdinfo *sra, int ndata) |
eee67a47 AK |
8723 | { |
8724 | int fd = sysfs_get_fd(sra, NULL, "reshape_position"); | |
8725 | unsigned long long completed; | |
ae9f01f8 AK |
8726 | /* to_complete : new sync_max position */ |
8727 | unsigned long long to_complete = sra->reshape_progress; | |
8728 | unsigned long long position_to_set = to_complete / ndata; | |
eee67a47 | 8729 | |
ae9f01f8 AK |
8730 | if (fd < 0) { |
8731 | dprintf("imsm: wait_for_reshape_imsm() " | |
8732 | "cannot open reshape_position\n"); | |
eee67a47 | 8733 | return 1; |
ae9f01f8 | 8734 | } |
eee67a47 | 8735 | |
ae9f01f8 AK |
8736 | if (sysfs_fd_get_ll(fd, &completed) < 0) { |
8737 | dprintf("imsm: wait_for_reshape_imsm() " | |
8738 | "cannot read reshape_position (no reshape in progres)\n"); | |
8739 | close(fd); | |
8740 | return 0; | |
8741 | } | |
eee67a47 | 8742 | |
ae9f01f8 AK |
8743 | if (completed > to_complete) { |
8744 | dprintf("imsm: wait_for_reshape_imsm() " | |
8745 | "wrong next position to set %llu (%llu)\n", | |
8746 | to_complete, completed); | |
8747 | close(fd); | |
8748 | return -1; | |
8749 | } | |
8750 | dprintf("Position set: %llu\n", position_to_set); | |
8751 | if (sysfs_set_num(sra, NULL, "sync_max", | |
8752 | position_to_set) != 0) { | |
8753 | dprintf("imsm: wait_for_reshape_imsm() " | |
8754 | "cannot set reshape position to %llu\n", | |
8755 | position_to_set); | |
8756 | close(fd); | |
8757 | return -1; | |
eee67a47 AK |
8758 | } |
8759 | ||
eee67a47 AK |
8760 | do { |
8761 | char action[20]; | |
8762 | fd_set rfds; | |
8763 | FD_ZERO(&rfds); | |
8764 | FD_SET(fd, &rfds); | |
a47e44fb AK |
8765 | select(fd+1, &rfds, NULL, NULL, NULL); |
8766 | if (sysfs_get_str(sra, NULL, "sync_action", | |
8767 | action, 20) > 0 && | |
8768 | strncmp(action, "reshape", 7) != 0) | |
8769 | break; | |
eee67a47 | 8770 | if (sysfs_fd_get_ll(fd, &completed) < 0) { |
ae9f01f8 AK |
8771 | dprintf("imsm: wait_for_reshape_imsm() " |
8772 | "cannot read reshape_position (in loop)\n"); | |
eee67a47 AK |
8773 | close(fd); |
8774 | return 1; | |
8775 | } | |
eee67a47 AK |
8776 | } while (completed < to_complete); |
8777 | close(fd); | |
8778 | return 0; | |
8779 | ||
8780 | } | |
8781 | ||
b915c95f AK |
8782 | /******************************************************************************* |
8783 | * Function: check_degradation_change | |
8784 | * Description: Check that array hasn't become failed. | |
8785 | * Parameters: | |
8786 | * info : for sysfs access | |
8787 | * sources : source disks descriptors | |
8788 | * degraded: previous degradation level | |
8789 | * Returns: | |
8790 | * degradation level | |
8791 | ******************************************************************************/ | |
8792 | int check_degradation_change(struct mdinfo *info, | |
8793 | int *sources, | |
8794 | int degraded) | |
8795 | { | |
8796 | unsigned long long new_degraded; | |
8797 | sysfs_get_ll(info, NULL, "degraded", &new_degraded); | |
8798 | if (new_degraded != (unsigned long long)degraded) { | |
8799 | /* check each device to ensure it is still working */ | |
8800 | struct mdinfo *sd; | |
8801 | new_degraded = 0; | |
8802 | for (sd = info->devs ; sd ; sd = sd->next) { | |
8803 | if (sd->disk.state & (1<<MD_DISK_FAULTY)) | |
8804 | continue; | |
8805 | if (sd->disk.state & (1<<MD_DISK_SYNC)) { | |
8806 | char sbuf[20]; | |
8807 | if (sysfs_get_str(info, | |
8808 | sd, "state", sbuf, 20) < 0 || | |
8809 | strstr(sbuf, "faulty") || | |
8810 | strstr(sbuf, "in_sync") == NULL) { | |
8811 | /* this device is dead */ | |
8812 | sd->disk.state = (1<<MD_DISK_FAULTY); | |
8813 | if (sd->disk.raid_disk >= 0 && | |
8814 | sources[sd->disk.raid_disk] >= 0) { | |
8815 | close(sources[ | |
8816 | sd->disk.raid_disk]); | |
8817 | sources[sd->disk.raid_disk] = | |
8818 | -1; | |
8819 | } | |
8820 | new_degraded++; | |
8821 | } | |
8822 | } | |
8823 | } | |
8824 | } | |
8825 | ||
8826 | return new_degraded; | |
8827 | } | |
8828 | ||
10f22854 AK |
8829 | /******************************************************************************* |
8830 | * Function: imsm_manage_reshape | |
8831 | * Description: Function finds array under reshape and it manages reshape | |
8832 | * process. It creates stripes backups (if required) and sets | |
8833 | * checheckpoits. | |
8834 | * Parameters: | |
8835 | * afd : Backup handle (nattive) - not used | |
8836 | * sra : general array info | |
8837 | * reshape : reshape parameters - not used | |
8838 | * st : supertype structure | |
8839 | * blocks : size of critical section [blocks] | |
8840 | * fds : table of source device descriptor | |
8841 | * offsets : start of array (offest per devices) | |
8842 | * dests : not used | |
8843 | * destfd : table of destination device descriptor | |
8844 | * destoffsets : table of destination offsets (per device) | |
8845 | * Returns: | |
8846 | * 1 : success, reshape is done | |
8847 | * 0 : fail | |
8848 | ******************************************************************************/ | |
999b4972 N |
8849 | static int imsm_manage_reshape( |
8850 | int afd, struct mdinfo *sra, struct reshape *reshape, | |
10f22854 | 8851 | struct supertype *st, unsigned long backup_blocks, |
999b4972 N |
8852 | int *fds, unsigned long long *offsets, |
8853 | int dests, int *destfd, unsigned long long *destoffsets) | |
8854 | { | |
10f22854 AK |
8855 | int ret_val = 0; |
8856 | struct intel_super *super = st->sb; | |
8857 | struct intel_dev *dv = NULL; | |
8858 | struct imsm_dev *dev = NULL; | |
a6b6d984 | 8859 | struct imsm_map *map_src; |
10f22854 AK |
8860 | int migr_vol_qan = 0; |
8861 | int ndata, odata; /* [bytes] */ | |
8862 | int chunk; /* [bytes] */ | |
8863 | struct migr_record *migr_rec; | |
8864 | char *buf = NULL; | |
8865 | unsigned int buf_size; /* [bytes] */ | |
8866 | unsigned long long max_position; /* array size [bytes] */ | |
8867 | unsigned long long next_step; /* [blocks]/[bytes] */ | |
8868 | unsigned long long old_data_stripe_length; | |
10f22854 AK |
8869 | unsigned long long start_src; /* [bytes] */ |
8870 | unsigned long long start; /* [bytes] */ | |
8871 | unsigned long long start_buf_shift; /* [bytes] */ | |
b915c95f | 8872 | int degraded = 0; |
ab724b98 | 8873 | int source_layout = 0; |
10f22854 | 8874 | |
1ab242d8 | 8875 | if (!fds || !offsets || !sra) |
10f22854 AK |
8876 | goto abort; |
8877 | ||
8878 | /* Find volume during the reshape */ | |
8879 | for (dv = super->devlist; dv; dv = dv->next) { | |
8880 | if (dv->dev->vol.migr_type == MIGR_GEN_MIGR | |
8881 | && dv->dev->vol.migr_state == 1) { | |
8882 | dev = dv->dev; | |
8883 | migr_vol_qan++; | |
8884 | } | |
8885 | } | |
8886 | /* Only one volume can migrate at the same time */ | |
8887 | if (migr_vol_qan != 1) { | |
8888 | fprintf(stderr, Name " : %s", migr_vol_qan ? | |
8889 | "Number of migrating volumes greater than 1\n" : | |
8890 | "There is no volume during migrationg\n"); | |
8891 | goto abort; | |
8892 | } | |
8893 | ||
8894 | map_src = get_imsm_map(dev, 1); | |
8895 | if (map_src == NULL) | |
8896 | goto abort; | |
10f22854 AK |
8897 | |
8898 | ndata = imsm_num_data_members(dev, 0); | |
8899 | odata = imsm_num_data_members(dev, 1); | |
8900 | ||
7b1ab482 | 8901 | chunk = __le16_to_cpu(map_src->blocks_per_strip) * 512; |
10f22854 AK |
8902 | old_data_stripe_length = odata * chunk; |
8903 | ||
8904 | migr_rec = super->migr_rec; | |
8905 | ||
10f22854 AK |
8906 | /* initialize migration record for start condition */ |
8907 | if (sra->reshape_progress == 0) | |
8908 | init_migr_record_imsm(st, dev, sra); | |
b2c59438 AK |
8909 | else { |
8910 | if (__le32_to_cpu(migr_rec->rec_status) != UNIT_SRC_NORMAL) { | |
8911 | dprintf("imsm: cannot restart migration when data " | |
8912 | "are present in copy area.\n"); | |
8913 | goto abort; | |
8914 | } | |
8915 | } | |
10f22854 AK |
8916 | |
8917 | /* size for data */ | |
8918 | buf_size = __le32_to_cpu(migr_rec->blocks_per_unit) * 512; | |
8919 | /* extend buffer size for parity disk */ | |
8920 | buf_size += __le32_to_cpu(migr_rec->dest_depth_per_unit) * 512; | |
8921 | /* add space for stripe aligment */ | |
8922 | buf_size += old_data_stripe_length; | |
8923 | if (posix_memalign((void **)&buf, 4096, buf_size)) { | |
8924 | dprintf("imsm: Cannot allocate checpoint buffer\n"); | |
8925 | goto abort; | |
8926 | } | |
8927 | ||
3ef4403c | 8928 | max_position = sra->component_size * ndata; |
68eb8bc6 | 8929 | source_layout = imsm_level_to_layout(map_src->raid_level); |
10f22854 AK |
8930 | |
8931 | while (__le32_to_cpu(migr_rec->curr_migr_unit) < | |
8932 | __le32_to_cpu(migr_rec->num_migr_units)) { | |
8933 | /* current reshape position [blocks] */ | |
8934 | unsigned long long current_position = | |
8935 | __le32_to_cpu(migr_rec->blocks_per_unit) | |
8936 | * __le32_to_cpu(migr_rec->curr_migr_unit); | |
8937 | unsigned long long border; | |
8938 | ||
b915c95f AK |
8939 | /* Check that array hasn't become failed. |
8940 | */ | |
8941 | degraded = check_degradation_change(sra, fds, degraded); | |
8942 | if (degraded > 1) { | |
8943 | dprintf("imsm: Abort reshape due to degradation" | |
8944 | " level (%i)\n", degraded); | |
8945 | goto abort; | |
8946 | } | |
8947 | ||
10f22854 AK |
8948 | next_step = __le32_to_cpu(migr_rec->blocks_per_unit); |
8949 | ||
8950 | if ((current_position + next_step) > max_position) | |
8951 | next_step = max_position - current_position; | |
8952 | ||
92144abf | 8953 | start = current_position * 512; |
10f22854 AK |
8954 | |
8955 | /* allign reading start to old geometry */ | |
8956 | start_buf_shift = start % old_data_stripe_length; | |
8957 | start_src = start - start_buf_shift; | |
8958 | ||
8959 | border = (start_src / odata) - (start / ndata); | |
8960 | border /= 512; | |
8961 | if (border <= __le32_to_cpu(migr_rec->dest_depth_per_unit)) { | |
8962 | /* save critical stripes to buf | |
8963 | * start - start address of current unit | |
8964 | * to backup [bytes] | |
8965 | * start_src - start address of current unit | |
8966 | * to backup alligned to source array | |
8967 | * [bytes] | |
8968 | */ | |
8969 | unsigned long long next_step_filler = 0; | |
8970 | unsigned long long copy_length = next_step * 512; | |
8971 | ||
8972 | /* allign copy area length to stripe in old geometry */ | |
8973 | next_step_filler = ((copy_length + start_buf_shift) | |
8974 | % old_data_stripe_length); | |
8975 | if (next_step_filler) | |
8976 | next_step_filler = (old_data_stripe_length | |
8977 | - next_step_filler); | |
8978 | dprintf("save_stripes() parameters: start = %llu," | |
8979 | "\tstart_src = %llu,\tnext_step*512 = %llu," | |
8980 | "\tstart_in_buf_shift = %llu," | |
8981 | "\tnext_step_filler = %llu\n", | |
8982 | start, start_src, copy_length, | |
8983 | start_buf_shift, next_step_filler); | |
8984 | ||
8985 | if (save_stripes(fds, offsets, map_src->num_members, | |
ab724b98 AK |
8986 | chunk, map_src->raid_level, |
8987 | source_layout, 0, NULL, start_src, | |
10f22854 AK |
8988 | copy_length + |
8989 | next_step_filler + start_buf_shift, | |
8990 | buf)) { | |
8991 | dprintf("imsm: Cannot save stripes" | |
8992 | " to buffer\n"); | |
8993 | goto abort; | |
8994 | } | |
8995 | /* Convert data to destination format and store it | |
8996 | * in backup general migration area | |
8997 | */ | |
8998 | if (save_backup_imsm(st, dev, sra, | |
aea93171 | 8999 | buf + start_buf_shift, copy_length)) { |
10f22854 AK |
9000 | dprintf("imsm: Cannot save stripes to " |
9001 | "target devices\n"); | |
9002 | goto abort; | |
9003 | } | |
9004 | if (save_checkpoint_imsm(st, sra, | |
9005 | UNIT_SRC_IN_CP_AREA)) { | |
9006 | dprintf("imsm: Cannot write checkpoint to " | |
9007 | "migration record (UNIT_SRC_IN_CP_AREA)\n"); | |
9008 | goto abort; | |
9009 | } | |
8016a6d4 AK |
9010 | } else { |
9011 | /* set next step to use whole border area */ | |
9012 | border /= next_step; | |
9013 | if (border > 1) | |
9014 | next_step *= border; | |
10f22854 AK |
9015 | } |
9016 | /* When data backed up, checkpoint stored, | |
9017 | * kick the kernel to reshape unit of data | |
9018 | */ | |
9019 | next_step = next_step + sra->reshape_progress; | |
8016a6d4 AK |
9020 | /* limit next step to array max position */ |
9021 | if (next_step > max_position) | |
9022 | next_step = max_position; | |
10f22854 AK |
9023 | sysfs_set_num(sra, NULL, "suspend_lo", sra->reshape_progress); |
9024 | sysfs_set_num(sra, NULL, "suspend_hi", next_step); | |
ae9f01f8 | 9025 | sra->reshape_progress = next_step; |
10f22854 AK |
9026 | |
9027 | /* wait until reshape finish */ | |
ae9f01f8 | 9028 | if (wait_for_reshape_imsm(sra, ndata) < 0) { |
c47b0ff6 AK |
9029 | dprintf("wait_for_reshape_imsm returned error!\n"); |
9030 | goto abort; | |
9031 | } | |
10f22854 | 9032 | |
0228d92c AK |
9033 | if (save_checkpoint_imsm(st, sra, UNIT_SRC_NORMAL) == 1) { |
9034 | /* ignore error == 2, this can mean end of reshape here | |
9035 | */ | |
10f22854 AK |
9036 | dprintf("imsm: Cannot write checkpoint to " |
9037 | "migration record (UNIT_SRC_NORMAL)\n"); | |
9038 | goto abort; | |
9039 | } | |
9040 | ||
9041 | } | |
9042 | ||
9043 | /* return '1' if done */ | |
9044 | ret_val = 1; | |
9045 | abort: | |
9046 | free(buf); | |
9047 | abort_reshape(sra); | |
9048 | ||
9049 | return ret_val; | |
999b4972 | 9050 | } |
71204a50 | 9051 | #endif /* MDASSEMBLE */ |
999b4972 | 9052 | |
cdddbdbc DW |
9053 | struct superswitch super_imsm = { |
9054 | #ifndef MDASSEMBLE | |
9055 | .examine_super = examine_super_imsm, | |
9056 | .brief_examine_super = brief_examine_super_imsm, | |
4737ae25 | 9057 | .brief_examine_subarrays = brief_examine_subarrays_imsm, |
9d84c8ea | 9058 | .export_examine_super = export_examine_super_imsm, |
cdddbdbc DW |
9059 | .detail_super = detail_super_imsm, |
9060 | .brief_detail_super = brief_detail_super_imsm, | |
bf5a934a | 9061 | .write_init_super = write_init_super_imsm, |
0e600426 N |
9062 | .validate_geometry = validate_geometry_imsm, |
9063 | .add_to_super = add_to_super_imsm, | |
1a64be56 | 9064 | .remove_from_super = remove_from_super_imsm, |
d665cc31 | 9065 | .detail_platform = detail_platform_imsm, |
33414a01 | 9066 | .kill_subarray = kill_subarray_imsm, |
aa534678 | 9067 | .update_subarray = update_subarray_imsm, |
2b959fbf | 9068 | .load_container = load_container_imsm, |
71204a50 N |
9069 | .default_geometry = default_geometry_imsm, |
9070 | .get_disk_controller_domain = imsm_get_disk_controller_domain, | |
9071 | .reshape_super = imsm_reshape_super, | |
9072 | .manage_reshape = imsm_manage_reshape, | |
9e2d750d | 9073 | .recover_backup = recover_backup_imsm, |
cdddbdbc DW |
9074 | #endif |
9075 | .match_home = match_home_imsm, | |
9076 | .uuid_from_super= uuid_from_super_imsm, | |
9077 | .getinfo_super = getinfo_super_imsm, | |
5c4cd5da | 9078 | .getinfo_super_disks = getinfo_super_disks_imsm, |
cdddbdbc DW |
9079 | .update_super = update_super_imsm, |
9080 | ||
9081 | .avail_size = avail_size_imsm, | |
80e7f8c3 | 9082 | .min_acceptable_spare_size = min_acceptable_spare_size_imsm, |
cdddbdbc DW |
9083 | |
9084 | .compare_super = compare_super_imsm, | |
9085 | ||
9086 | .load_super = load_super_imsm, | |
bf5a934a | 9087 | .init_super = init_super_imsm, |
e683ca88 | 9088 | .store_super = store_super_imsm, |
cdddbdbc DW |
9089 | .free_super = free_super_imsm, |
9090 | .match_metadata_desc = match_metadata_desc_imsm, | |
bf5a934a | 9091 | .container_content = container_content_imsm, |
cdddbdbc | 9092 | |
276d77db | 9093 | |
cdddbdbc | 9094 | .external = 1, |
4cce4069 | 9095 | .name = "imsm", |
845dea95 | 9096 | |
0e600426 | 9097 | #ifndef MDASSEMBLE |
845dea95 NB |
9098 | /* for mdmon */ |
9099 | .open_new = imsm_open_new, | |
ed9d66aa | 9100 | .set_array_state= imsm_set_array_state, |
845dea95 NB |
9101 | .set_disk = imsm_set_disk, |
9102 | .sync_metadata = imsm_sync_metadata, | |
88758e9d | 9103 | .activate_spare = imsm_activate_spare, |
e8319a19 | 9104 | .process_update = imsm_process_update, |
8273f55e | 9105 | .prepare_update = imsm_prepare_update, |
0e600426 | 9106 | #endif /* MDASSEMBLE */ |
cdddbdbc | 9107 | }; |