]>
Commit | Line | Data |
---|---|---|
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 | */ | |
418f9b36 | 77 | #define MPB_ATTRIB_SUPPORTED (MPB_ATTRIB_CHECKSUM_VERIFY | \ |
19482bcc AK |
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 | \ | |
418f9b36 N |
84 | MPB_ATTRIB_EXP_STRIPE_SIZE) |
85 | ||
86 | /* Define attributes that are unused but not harmful */ | |
87 | #define MPB_ATTRIB_IGNORED (MPB_ATTRIB_NEVER_USE) | |
fe7ed8cb | 88 | |
8e59f3d8 | 89 | #define MPB_SECTOR_CNT 2210 |
c2c087e6 | 90 | #define IMSM_RESERVED_SECTORS 4096 |
b81221b7 | 91 | #define NUM_BLOCKS_DIRTY_STRIPE_REGION 2056 |
979d38be | 92 | #define SECT_PER_MB_SHIFT 11 |
cdddbdbc DW |
93 | |
94 | /* Disk configuration info. */ | |
95 | #define IMSM_MAX_DEVICES 255 | |
96 | struct imsm_disk { | |
97 | __u8 serial[MAX_RAID_SERIAL_LEN];/* 0xD8 - 0xE7 ascii serial number */ | |
98 | __u32 total_blocks; /* 0xE8 - 0xEB total blocks */ | |
99 | __u32 scsi_id; /* 0xEC - 0xEF scsi ID */ | |
f2f27e63 DW |
100 | #define SPARE_DISK __cpu_to_le32(0x01) /* Spare */ |
101 | #define CONFIGURED_DISK __cpu_to_le32(0x02) /* Member of some RaidDev */ | |
102 | #define FAILED_DISK __cpu_to_le32(0x04) /* Permanent failure */ | |
cdddbdbc | 103 | __u32 status; /* 0xF0 - 0xF3 */ |
fe7ed8cb DW |
104 | __u32 owner_cfg_num; /* which config 0,1,2... owns this disk */ |
105 | #define IMSM_DISK_FILLERS 4 | |
cdddbdbc DW |
106 | __u32 filler[IMSM_DISK_FILLERS]; /* 0xF4 - 0x107 MPB_DISK_FILLERS for future expansion */ |
107 | }; | |
108 | ||
109 | /* RAID map configuration infos. */ | |
110 | struct imsm_map { | |
111 | __u32 pba_of_lba0; /* start address of partition */ | |
112 | __u32 blocks_per_member;/* blocks per member */ | |
113 | __u32 num_data_stripes; /* number of data stripes */ | |
114 | __u16 blocks_per_strip; | |
115 | __u8 map_state; /* Normal, Uninitialized, Degraded, Failed */ | |
116 | #define IMSM_T_STATE_NORMAL 0 | |
117 | #define IMSM_T_STATE_UNINITIALIZED 1 | |
e3bba0e0 DW |
118 | #define IMSM_T_STATE_DEGRADED 2 |
119 | #define IMSM_T_STATE_FAILED 3 | |
cdddbdbc DW |
120 | __u8 raid_level; |
121 | #define IMSM_T_RAID0 0 | |
122 | #define IMSM_T_RAID1 1 | |
123 | #define IMSM_T_RAID5 5 /* since metadata version 1.2.02 ? */ | |
124 | __u8 num_members; /* number of member disks */ | |
fe7ed8cb DW |
125 | __u8 num_domains; /* number of parity domains */ |
126 | __u8 failed_disk_num; /* valid only when state is degraded */ | |
252d23c0 | 127 | __u8 ddf; |
cdddbdbc | 128 | __u32 filler[7]; /* expansion area */ |
7eef0453 | 129 | #define IMSM_ORD_REBUILD (1 << 24) |
cdddbdbc | 130 | __u32 disk_ord_tbl[1]; /* disk_ord_tbl[num_members], |
7eef0453 DW |
131 | * top byte contains some flags |
132 | */ | |
cdddbdbc DW |
133 | } __attribute__ ((packed)); |
134 | ||
135 | struct imsm_vol { | |
f8f603f1 | 136 | __u32 curr_migr_unit; |
fe7ed8cb | 137 | __u32 checkpoint_id; /* id to access curr_migr_unit */ |
cdddbdbc | 138 | __u8 migr_state; /* Normal or Migrating */ |
e3bba0e0 DW |
139 | #define MIGR_INIT 0 |
140 | #define MIGR_REBUILD 1 | |
141 | #define MIGR_VERIFY 2 /* analagous to echo check > sync_action */ | |
142 | #define MIGR_GEN_MIGR 3 | |
143 | #define MIGR_STATE_CHANGE 4 | |
1484e727 | 144 | #define MIGR_REPAIR 5 |
cdddbdbc DW |
145 | __u8 migr_type; /* Initializing, Rebuilding, ... */ |
146 | __u8 dirty; | |
fe7ed8cb DW |
147 | __u8 fs_state; /* fast-sync state for CnG (0xff == disabled) */ |
148 | __u16 verify_errors; /* number of mismatches */ | |
149 | __u16 bad_blocks; /* number of bad blocks during verify */ | |
150 | __u32 filler[4]; | |
cdddbdbc DW |
151 | struct imsm_map map[1]; |
152 | /* here comes another one if migr_state */ | |
153 | } __attribute__ ((packed)); | |
154 | ||
155 | struct imsm_dev { | |
fe7ed8cb | 156 | __u8 volume[MAX_RAID_SERIAL_LEN]; |
cdddbdbc DW |
157 | __u32 size_low; |
158 | __u32 size_high; | |
fe7ed8cb DW |
159 | #define DEV_BOOTABLE __cpu_to_le32(0x01) |
160 | #define DEV_BOOT_DEVICE __cpu_to_le32(0x02) | |
161 | #define DEV_READ_COALESCING __cpu_to_le32(0x04) | |
162 | #define DEV_WRITE_COALESCING __cpu_to_le32(0x08) | |
163 | #define DEV_LAST_SHUTDOWN_DIRTY __cpu_to_le32(0x10) | |
164 | #define DEV_HIDDEN_AT_BOOT __cpu_to_le32(0x20) | |
165 | #define DEV_CURRENTLY_HIDDEN __cpu_to_le32(0x40) | |
166 | #define DEV_VERIFY_AND_FIX __cpu_to_le32(0x80) | |
167 | #define DEV_MAP_STATE_UNINIT __cpu_to_le32(0x100) | |
168 | #define DEV_NO_AUTO_RECOVERY __cpu_to_le32(0x200) | |
169 | #define DEV_CLONE_N_GO __cpu_to_le32(0x400) | |
170 | #define DEV_CLONE_MAN_SYNC __cpu_to_le32(0x800) | |
171 | #define DEV_CNG_MASTER_DISK_NUM __cpu_to_le32(0x1000) | |
cdddbdbc DW |
172 | __u32 status; /* Persistent RaidDev status */ |
173 | __u32 reserved_blocks; /* Reserved blocks at beginning of volume */ | |
fe7ed8cb DW |
174 | __u8 migr_priority; |
175 | __u8 num_sub_vols; | |
176 | __u8 tid; | |
177 | __u8 cng_master_disk; | |
178 | __u16 cache_policy; | |
179 | __u8 cng_state; | |
180 | __u8 cng_sub_state; | |
181 | #define IMSM_DEV_FILLERS 10 | |
cdddbdbc DW |
182 | __u32 filler[IMSM_DEV_FILLERS]; |
183 | struct imsm_vol vol; | |
184 | } __attribute__ ((packed)); | |
185 | ||
186 | struct imsm_super { | |
187 | __u8 sig[MAX_SIGNATURE_LENGTH]; /* 0x00 - 0x1F */ | |
188 | __u32 check_sum; /* 0x20 - 0x23 MPB Checksum */ | |
189 | __u32 mpb_size; /* 0x24 - 0x27 Size of MPB */ | |
190 | __u32 family_num; /* 0x28 - 0x2B Checksum from first time this config was written */ | |
191 | __u32 generation_num; /* 0x2C - 0x2F Incremented each time this array's MPB is written */ | |
604b746f JD |
192 | __u32 error_log_size; /* 0x30 - 0x33 in bytes */ |
193 | __u32 attributes; /* 0x34 - 0x37 */ | |
cdddbdbc DW |
194 | __u8 num_disks; /* 0x38 Number of configured disks */ |
195 | __u8 num_raid_devs; /* 0x39 Number of configured volumes */ | |
604b746f JD |
196 | __u8 error_log_pos; /* 0x3A */ |
197 | __u8 fill[1]; /* 0x3B */ | |
198 | __u32 cache_size; /* 0x3c - 0x40 in mb */ | |
199 | __u32 orig_family_num; /* 0x40 - 0x43 original family num */ | |
200 | __u32 pwr_cycle_count; /* 0x44 - 0x47 simulated power cycle count for array */ | |
201 | __u32 bbm_log_size; /* 0x48 - 0x4B - size of bad Block Mgmt Log in bytes */ | |
202 | #define IMSM_FILLERS 35 | |
203 | __u32 filler[IMSM_FILLERS]; /* 0x4C - 0xD7 RAID_MPB_FILLERS */ | |
cdddbdbc DW |
204 | struct imsm_disk disk[1]; /* 0xD8 diskTbl[numDisks] */ |
205 | /* here comes imsm_dev[num_raid_devs] */ | |
604b746f | 206 | /* here comes BBM logs */ |
cdddbdbc DW |
207 | } __attribute__ ((packed)); |
208 | ||
604b746f JD |
209 | #define BBM_LOG_MAX_ENTRIES 254 |
210 | ||
211 | struct bbm_log_entry { | |
212 | __u64 defective_block_start; | |
213 | #define UNREADABLE 0xFFFFFFFF | |
214 | __u32 spare_block_offset; | |
215 | __u16 remapped_marked_count; | |
216 | __u16 disk_ordinal; | |
217 | } __attribute__ ((__packed__)); | |
218 | ||
219 | struct bbm_log { | |
220 | __u32 signature; /* 0xABADB10C */ | |
221 | __u32 entry_count; | |
222 | __u32 reserved_spare_block_count; /* 0 */ | |
223 | __u32 reserved; /* 0xFFFF */ | |
224 | __u64 first_spare_lba; | |
225 | struct bbm_log_entry mapped_block_entries[BBM_LOG_MAX_ENTRIES]; | |
226 | } __attribute__ ((__packed__)); | |
227 | ||
228 | ||
cdddbdbc DW |
229 | #ifndef MDASSEMBLE |
230 | static char *map_state_str[] = { "normal", "uninitialized", "degraded", "failed" }; | |
231 | #endif | |
232 | ||
8e59f3d8 AK |
233 | #define RAID_DISK_RESERVED_BLOCKS_IMSM_HI 2209 |
234 | ||
235 | #define GEN_MIGR_AREA_SIZE 2048 /* General Migration Copy Area size in blocks */ | |
236 | ||
237 | #define UNIT_SRC_NORMAL 0 /* Source data for curr_migr_unit must | |
238 | * be recovered using srcMap */ | |
239 | #define UNIT_SRC_IN_CP_AREA 1 /* Source data for curr_migr_unit has | |
240 | * already been migrated and must | |
241 | * be recovered from checkpoint area */ | |
242 | struct migr_record { | |
243 | __u32 rec_status; /* Status used to determine how to restart | |
244 | * migration in case it aborts | |
245 | * in some fashion */ | |
246 | __u32 curr_migr_unit; /* 0..numMigrUnits-1 */ | |
247 | __u32 family_num; /* Family number of MPB | |
248 | * containing the RaidDev | |
249 | * that is migrating */ | |
250 | __u32 ascending_migr; /* True if migrating in increasing | |
251 | * order of lbas */ | |
252 | __u32 blocks_per_unit; /* Num disk blocks per unit of operation */ | |
253 | __u32 dest_depth_per_unit; /* Num member blocks each destMap | |
254 | * member disk | |
255 | * advances per unit-of-operation */ | |
256 | __u32 ckpt_area_pba; /* Pba of first block of ckpt copy area */ | |
257 | __u32 dest_1st_member_lba; /* First member lba on first | |
258 | * stripe of destination */ | |
259 | __u32 num_migr_units; /* Total num migration units-of-op */ | |
260 | __u32 post_migr_vol_cap; /* Size of volume after | |
261 | * migration completes */ | |
262 | __u32 post_migr_vol_cap_hi; /* Expansion space for LBA64 */ | |
263 | __u32 ckpt_read_disk_num; /* Which member disk in destSubMap[0] the | |
264 | * migration ckpt record was read from | |
265 | * (for recovered migrations) */ | |
266 | } __attribute__ ((__packed__)); | |
267 | ||
1484e727 DW |
268 | static __u8 migr_type(struct imsm_dev *dev) |
269 | { | |
270 | if (dev->vol.migr_type == MIGR_VERIFY && | |
271 | dev->status & DEV_VERIFY_AND_FIX) | |
272 | return MIGR_REPAIR; | |
273 | else | |
274 | return dev->vol.migr_type; | |
275 | } | |
276 | ||
277 | static void set_migr_type(struct imsm_dev *dev, __u8 migr_type) | |
278 | { | |
279 | /* for compatibility with older oroms convert MIGR_REPAIR, into | |
280 | * MIGR_VERIFY w/ DEV_VERIFY_AND_FIX status | |
281 | */ | |
282 | if (migr_type == MIGR_REPAIR) { | |
283 | dev->vol.migr_type = MIGR_VERIFY; | |
284 | dev->status |= DEV_VERIFY_AND_FIX; | |
285 | } else { | |
286 | dev->vol.migr_type = migr_type; | |
287 | dev->status &= ~DEV_VERIFY_AND_FIX; | |
288 | } | |
289 | } | |
290 | ||
87eb16df | 291 | static unsigned int sector_count(__u32 bytes) |
cdddbdbc | 292 | { |
87eb16df DW |
293 | return ((bytes + (512-1)) & (~(512-1))) / 512; |
294 | } | |
cdddbdbc | 295 | |
87eb16df DW |
296 | static unsigned int mpb_sectors(struct imsm_super *mpb) |
297 | { | |
298 | return sector_count(__le32_to_cpu(mpb->mpb_size)); | |
cdddbdbc DW |
299 | } |
300 | ||
ba2de7ba DW |
301 | struct intel_dev { |
302 | struct imsm_dev *dev; | |
303 | struct intel_dev *next; | |
f21e18ca | 304 | unsigned index; |
ba2de7ba DW |
305 | }; |
306 | ||
88654014 LM |
307 | struct intel_hba { |
308 | enum sys_dev_type type; | |
309 | char *path; | |
310 | char *pci_id; | |
311 | struct intel_hba *next; | |
312 | }; | |
313 | ||
1a64be56 LM |
314 | enum action { |
315 | DISK_REMOVE = 1, | |
316 | DISK_ADD | |
317 | }; | |
cdddbdbc DW |
318 | /* internal representation of IMSM metadata */ |
319 | struct intel_super { | |
320 | union { | |
949c47a0 DW |
321 | void *buf; /* O_DIRECT buffer for reading/writing metadata */ |
322 | struct imsm_super *anchor; /* immovable parameters */ | |
cdddbdbc | 323 | }; |
8e59f3d8 AK |
324 | union { |
325 | void *migr_rec_buf; /* buffer for I/O operations */ | |
326 | struct migr_record *migr_rec; /* migration record */ | |
327 | }; | |
949c47a0 | 328 | size_t len; /* size of the 'buf' allocation */ |
4d7b1503 DW |
329 | void *next_buf; /* for realloc'ing buf from the manager */ |
330 | size_t next_len; | |
c2c087e6 | 331 | int updates_pending; /* count of pending updates for mdmon */ |
bf5a934a | 332 | int current_vol; /* index of raid device undergoing creation */ |
0dcecb2e | 333 | __u32 create_offset; /* common start for 'current_vol' */ |
148acb7b | 334 | __u32 random; /* random data for seeding new family numbers */ |
ba2de7ba | 335 | struct intel_dev *devlist; |
cdddbdbc DW |
336 | struct dl { |
337 | struct dl *next; | |
338 | int index; | |
339 | __u8 serial[MAX_RAID_SERIAL_LEN]; | |
340 | int major, minor; | |
341 | char *devname; | |
b9f594fe | 342 | struct imsm_disk disk; |
cdddbdbc | 343 | int fd; |
0dcecb2e DW |
344 | int extent_cnt; |
345 | struct extent *e; /* for determining freespace @ create */ | |
efb30e7f | 346 | int raiddisk; /* slot to fill in autolayout */ |
1a64be56 | 347 | enum action action; |
ca0748fa | 348 | } *disks, *current_disk; |
1a64be56 LM |
349 | struct dl *disk_mgmt_list; /* list of disks to add/remove while mdmon |
350 | active */ | |
47ee5a45 | 351 | struct dl *missing; /* disks removed while we weren't looking */ |
43dad3d6 | 352 | struct bbm_log *bbm_log; |
88654014 | 353 | struct intel_hba *hba; /* device path of the raid controller for this metadata */ |
88c32bb1 | 354 | const struct imsm_orom *orom; /* platform firmware support */ |
a2b97981 DW |
355 | struct intel_super *next; /* (temp) list for disambiguating family_num */ |
356 | }; | |
357 | ||
358 | struct intel_disk { | |
359 | struct imsm_disk disk; | |
360 | #define IMSM_UNKNOWN_OWNER (-1) | |
361 | int owner; | |
362 | struct intel_disk *next; | |
cdddbdbc DW |
363 | }; |
364 | ||
c2c087e6 DW |
365 | struct extent { |
366 | unsigned long long start, size; | |
367 | }; | |
368 | ||
694575e7 KW |
369 | /* definitions of reshape process types */ |
370 | enum imsm_reshape_type { | |
371 | CH_TAKEOVER, | |
b5347799 | 372 | CH_MIGRATION, |
694575e7 KW |
373 | }; |
374 | ||
88758e9d DW |
375 | /* definition of messages passed to imsm_process_update */ |
376 | enum imsm_update_type { | |
377 | update_activate_spare, | |
8273f55e | 378 | update_create_array, |
33414a01 | 379 | update_kill_array, |
aa534678 | 380 | update_rename_array, |
1a64be56 | 381 | update_add_remove_disk, |
78b10e66 | 382 | update_reshape_container_disks, |
48c5303a | 383 | update_reshape_migration, |
2d40f3a1 AK |
384 | update_takeover, |
385 | update_general_migration_checkpoint, | |
88758e9d DW |
386 | }; |
387 | ||
388 | struct imsm_update_activate_spare { | |
389 | enum imsm_update_type type; | |
d23fe947 | 390 | struct dl *dl; |
88758e9d DW |
391 | int slot; |
392 | int array; | |
393 | struct imsm_update_activate_spare *next; | |
394 | }; | |
395 | ||
78b10e66 N |
396 | struct geo_params { |
397 | int dev_id; | |
398 | char *dev_name; | |
399 | long long size; | |
400 | int level; | |
401 | int layout; | |
402 | int chunksize; | |
403 | int raid_disks; | |
404 | }; | |
405 | ||
bb025c2f KW |
406 | enum takeover_direction { |
407 | R10_TO_R0, | |
408 | R0_TO_R10 | |
409 | }; | |
410 | struct imsm_update_takeover { | |
411 | enum imsm_update_type type; | |
412 | int subarray; | |
413 | enum takeover_direction direction; | |
414 | }; | |
78b10e66 N |
415 | |
416 | struct imsm_update_reshape { | |
417 | enum imsm_update_type type; | |
418 | int old_raid_disks; | |
419 | int new_raid_disks; | |
48c5303a PC |
420 | |
421 | int new_disks[1]; /* new_raid_disks - old_raid_disks makedev number */ | |
422 | }; | |
423 | ||
424 | struct imsm_update_reshape_migration { | |
425 | enum imsm_update_type type; | |
426 | int old_raid_disks; | |
427 | int new_raid_disks; | |
428 | /* fields for array migration changes | |
429 | */ | |
430 | int subdev; | |
431 | int new_level; | |
432 | int new_layout; | |
4bba0439 | 433 | int new_chunksize; |
48c5303a | 434 | |
d195167d | 435 | int new_disks[1]; /* new_raid_disks - old_raid_disks makedev number */ |
78b10e66 N |
436 | }; |
437 | ||
2d40f3a1 AK |
438 | struct imsm_update_general_migration_checkpoint { |
439 | enum imsm_update_type type; | |
440 | __u32 curr_migr_unit; | |
441 | }; | |
442 | ||
54c2c1ea DW |
443 | struct disk_info { |
444 | __u8 serial[MAX_RAID_SERIAL_LEN]; | |
445 | }; | |
446 | ||
8273f55e DW |
447 | struct imsm_update_create_array { |
448 | enum imsm_update_type type; | |
8273f55e | 449 | int dev_idx; |
6a3e913e | 450 | struct imsm_dev dev; |
8273f55e DW |
451 | }; |
452 | ||
33414a01 DW |
453 | struct imsm_update_kill_array { |
454 | enum imsm_update_type type; | |
455 | int dev_idx; | |
456 | }; | |
457 | ||
aa534678 DW |
458 | struct imsm_update_rename_array { |
459 | enum imsm_update_type type; | |
460 | __u8 name[MAX_RAID_SERIAL_LEN]; | |
461 | int dev_idx; | |
462 | }; | |
463 | ||
1a64be56 | 464 | struct imsm_update_add_remove_disk { |
43dad3d6 DW |
465 | enum imsm_update_type type; |
466 | }; | |
467 | ||
88654014 LM |
468 | |
469 | static const char *_sys_dev_type[] = { | |
470 | [SYS_DEV_UNKNOWN] = "Unknown", | |
471 | [SYS_DEV_SAS] = "SAS", | |
472 | [SYS_DEV_SATA] = "SATA" | |
473 | }; | |
474 | ||
475 | const char *get_sys_dev_type(enum sys_dev_type type) | |
476 | { | |
477 | if (type >= SYS_DEV_MAX) | |
478 | type = SYS_DEV_UNKNOWN; | |
479 | ||
480 | return _sys_dev_type[type]; | |
481 | } | |
482 | ||
483 | static struct intel_hba * alloc_intel_hba(struct sys_dev *device) | |
484 | { | |
485 | struct intel_hba *result = malloc(sizeof(*result)); | |
486 | if (result) { | |
487 | result->type = device->type; | |
488 | result->path = strdup(device->path); | |
489 | result->next = NULL; | |
490 | if (result->path && (result->pci_id = strrchr(result->path, '/')) != NULL) | |
491 | result->pci_id++; | |
492 | } | |
493 | return result; | |
494 | } | |
495 | ||
496 | static struct intel_hba * find_intel_hba(struct intel_hba *hba, struct sys_dev *device) | |
497 | { | |
498 | struct intel_hba *result=NULL; | |
499 | for (result = hba; result; result = result->next) { | |
500 | if (result->type == device->type && strcmp(result->path, device->path) == 0) | |
501 | break; | |
502 | } | |
503 | return result; | |
504 | } | |
505 | ||
b4cf4cba | 506 | static int attach_hba_to_super(struct intel_super *super, struct sys_dev *device) |
88654014 LM |
507 | { |
508 | struct intel_hba *hba; | |
509 | ||
510 | /* check if disk attached to Intel HBA */ | |
511 | hba = find_intel_hba(super->hba, device); | |
512 | if (hba != NULL) | |
513 | return 1; | |
514 | /* Check if HBA is already attached to super */ | |
515 | if (super->hba == NULL) { | |
516 | super->hba = alloc_intel_hba(device); | |
517 | return 1; | |
518 | } | |
519 | ||
520 | hba = super->hba; | |
521 | /* Intel metadata allows for all disks attached to the same type HBA. | |
522 | * Do not sypport odf HBA types mixing | |
523 | */ | |
524 | if (device->type != hba->type) | |
525 | return 2; | |
526 | ||
527 | while (hba->next) | |
528 | hba = hba->next; | |
529 | ||
530 | hba->next = alloc_intel_hba(device); | |
531 | return 1; | |
532 | } | |
533 | ||
534 | static struct sys_dev* find_disk_attached_hba(int fd, const char *devname) | |
535 | { | |
536 | struct sys_dev *list, *elem, *prev; | |
537 | char *disk_path; | |
538 | ||
539 | if ((list = find_intel_devices()) == NULL) | |
540 | return 0; | |
541 | ||
542 | if (fd < 0) | |
543 | disk_path = (char *) devname; | |
544 | else | |
545 | disk_path = diskfd_to_devpath(fd); | |
546 | ||
547 | if (!disk_path) { | |
548 | free_sys_dev(&list); | |
549 | return 0; | |
550 | } | |
551 | ||
552 | for (prev = NULL, elem = list; elem; prev = elem, elem = elem->next) { | |
553 | if (path_attached_to_hba(disk_path, elem->path)) { | |
554 | if (prev == NULL) | |
555 | list = list->next; | |
556 | else | |
557 | prev->next = elem->next; | |
558 | elem->next = NULL; | |
559 | if (disk_path != devname) | |
560 | free(disk_path); | |
561 | free_sys_dev(&list); | |
562 | return elem; | |
563 | } | |
564 | } | |
565 | if (disk_path != devname) | |
566 | free(disk_path); | |
567 | free_sys_dev(&list); | |
568 | ||
569 | return NULL; | |
570 | } | |
571 | ||
572 | ||
d424212e N |
573 | static int find_intel_hba_capability(int fd, struct intel_super *super, |
574 | char *devname); | |
f2f5c343 | 575 | |
cdddbdbc DW |
576 | static struct supertype *match_metadata_desc_imsm(char *arg) |
577 | { | |
578 | struct supertype *st; | |
579 | ||
580 | if (strcmp(arg, "imsm") != 0 && | |
581 | strcmp(arg, "default") != 0 | |
582 | ) | |
583 | return NULL; | |
584 | ||
585 | st = malloc(sizeof(*st)); | |
4e9d2186 AW |
586 | if (!st) |
587 | return NULL; | |
ef609477 | 588 | memset(st, 0, sizeof(*st)); |
d1d599ea | 589 | st->container_dev = NoMdDev; |
cdddbdbc DW |
590 | st->ss = &super_imsm; |
591 | st->max_devs = IMSM_MAX_DEVICES; | |
592 | st->minor_version = 0; | |
593 | st->sb = NULL; | |
594 | return st; | |
595 | } | |
596 | ||
0e600426 | 597 | #ifndef MDASSEMBLE |
cdddbdbc DW |
598 | static __u8 *get_imsm_version(struct imsm_super *mpb) |
599 | { | |
600 | return &mpb->sig[MPB_SIG_LEN]; | |
601 | } | |
9e2d750d | 602 | #endif |
cdddbdbc | 603 | |
949c47a0 DW |
604 | /* retrieve a disk directly from the anchor when the anchor is known to be |
605 | * up-to-date, currently only at load time | |
606 | */ | |
607 | static struct imsm_disk *__get_imsm_disk(struct imsm_super *mpb, __u8 index) | |
cdddbdbc | 608 | { |
949c47a0 | 609 | if (index >= mpb->num_disks) |
cdddbdbc DW |
610 | return NULL; |
611 | return &mpb->disk[index]; | |
612 | } | |
613 | ||
95d07a2c LM |
614 | /* retrieve the disk description based on a index of the disk |
615 | * in the sub-array | |
616 | */ | |
617 | static struct dl *get_imsm_dl_disk(struct intel_super *super, __u8 index) | |
949c47a0 | 618 | { |
b9f594fe DW |
619 | struct dl *d; |
620 | ||
621 | for (d = super->disks; d; d = d->next) | |
622 | if (d->index == index) | |
95d07a2c LM |
623 | return d; |
624 | ||
625 | return NULL; | |
626 | } | |
627 | /* retrieve a disk from the parsed metadata */ | |
628 | static struct imsm_disk *get_imsm_disk(struct intel_super *super, __u8 index) | |
629 | { | |
630 | struct dl *dl; | |
631 | ||
632 | dl = get_imsm_dl_disk(super, index); | |
633 | if (dl) | |
634 | return &dl->disk; | |
635 | ||
b9f594fe | 636 | return NULL; |
949c47a0 DW |
637 | } |
638 | ||
639 | /* generate a checksum directly from the anchor when the anchor is known to be | |
640 | * up-to-date, currently only at load or write_super after coalescing | |
641 | */ | |
642 | static __u32 __gen_imsm_checksum(struct imsm_super *mpb) | |
cdddbdbc DW |
643 | { |
644 | __u32 end = mpb->mpb_size / sizeof(end); | |
645 | __u32 *p = (__u32 *) mpb; | |
646 | __u32 sum = 0; | |
647 | ||
97f734fd N |
648 | while (end--) { |
649 | sum += __le32_to_cpu(*p); | |
650 | p++; | |
651 | } | |
cdddbdbc DW |
652 | |
653 | return sum - __le32_to_cpu(mpb->check_sum); | |
654 | } | |
655 | ||
a965f303 DW |
656 | static size_t sizeof_imsm_map(struct imsm_map *map) |
657 | { | |
658 | return sizeof(struct imsm_map) + sizeof(__u32) * (map->num_members - 1); | |
659 | } | |
660 | ||
661 | struct imsm_map *get_imsm_map(struct imsm_dev *dev, int second_map) | |
cdddbdbc | 662 | { |
5e7b0330 AK |
663 | /* A device can have 2 maps if it is in the middle of a migration. |
664 | * If second_map is: | |
665 | * 0 - we return the first map | |
666 | * 1 - we return the second map if it exists, else NULL | |
667 | * -1 - we return the second map if it exists, else the first | |
9535fc47 | 668 | * -2 - we return longer map /excluding uninitialized state/ |
5e7b0330 | 669 | */ |
a965f303 | 670 | struct imsm_map *map = &dev->vol.map[0]; |
9535fc47 | 671 | struct imsm_map *map2 = NULL; |
a965f303 | 672 | |
9535fc47 AK |
673 | if (dev->vol.migr_state) |
674 | map2 = (void *)map + sizeof_imsm_map(map); | |
a965f303 | 675 | |
9535fc47 AK |
676 | switch (second_map) { |
677 | case 0: | |
678 | break; | |
679 | case 1: | |
680 | map = map2; | |
681 | break; | |
682 | case -1: | |
683 | if (map2) | |
684 | map = map2; | |
685 | break; | |
686 | case -2: | |
687 | if (map2 | |
688 | && map2->map_state != IMSM_T_STATE_UNINITIALIZED | |
689 | && map2->num_members > map->num_members) | |
690 | map = map2; | |
691 | break; | |
692 | default: | |
693 | map = NULL; | |
694 | } | |
695 | return map; | |
5e7b0330 | 696 | |
a965f303 | 697 | } |
cdddbdbc | 698 | |
3393c6af DW |
699 | /* return the size of the device. |
700 | * migr_state increases the returned size if map[0] were to be duplicated | |
701 | */ | |
702 | static size_t sizeof_imsm_dev(struct imsm_dev *dev, int migr_state) | |
a965f303 DW |
703 | { |
704 | size_t size = sizeof(*dev) - sizeof(struct imsm_map) + | |
705 | sizeof_imsm_map(get_imsm_map(dev, 0)); | |
cdddbdbc DW |
706 | |
707 | /* migrating means an additional map */ | |
a965f303 DW |
708 | if (dev->vol.migr_state) |
709 | size += sizeof_imsm_map(get_imsm_map(dev, 1)); | |
3393c6af DW |
710 | else if (migr_state) |
711 | size += sizeof_imsm_map(get_imsm_map(dev, 0)); | |
cdddbdbc DW |
712 | |
713 | return size; | |
714 | } | |
715 | ||
54c2c1ea DW |
716 | #ifndef MDASSEMBLE |
717 | /* retrieve disk serial number list from a metadata update */ | |
718 | static struct disk_info *get_disk_info(struct imsm_update_create_array *update) | |
719 | { | |
720 | void *u = update; | |
721 | struct disk_info *inf; | |
722 | ||
723 | inf = u + sizeof(*update) - sizeof(struct imsm_dev) + | |
724 | sizeof_imsm_dev(&update->dev, 0); | |
725 | ||
726 | return inf; | |
727 | } | |
728 | #endif | |
729 | ||
949c47a0 | 730 | static struct imsm_dev *__get_imsm_dev(struct imsm_super *mpb, __u8 index) |
cdddbdbc DW |
731 | { |
732 | int offset; | |
733 | int i; | |
734 | void *_mpb = mpb; | |
735 | ||
949c47a0 | 736 | if (index >= mpb->num_raid_devs) |
cdddbdbc DW |
737 | return NULL; |
738 | ||
739 | /* devices start after all disks */ | |
740 | offset = ((void *) &mpb->disk[mpb->num_disks]) - _mpb; | |
741 | ||
742 | for (i = 0; i <= index; i++) | |
743 | if (i == index) | |
744 | return _mpb + offset; | |
745 | else | |
3393c6af | 746 | offset += sizeof_imsm_dev(_mpb + offset, 0); |
cdddbdbc DW |
747 | |
748 | return NULL; | |
749 | } | |
750 | ||
949c47a0 DW |
751 | static struct imsm_dev *get_imsm_dev(struct intel_super *super, __u8 index) |
752 | { | |
ba2de7ba DW |
753 | struct intel_dev *dv; |
754 | ||
949c47a0 DW |
755 | if (index >= super->anchor->num_raid_devs) |
756 | return NULL; | |
ba2de7ba DW |
757 | for (dv = super->devlist; dv; dv = dv->next) |
758 | if (dv->index == index) | |
759 | return dv->dev; | |
760 | return NULL; | |
949c47a0 DW |
761 | } |
762 | ||
98130f40 AK |
763 | /* |
764 | * for second_map: | |
765 | * == 0 get first map | |
766 | * == 1 get second map | |
767 | * == -1 than get map according to the current migr_state | |
768 | */ | |
769 | static __u32 get_imsm_ord_tbl_ent(struct imsm_dev *dev, | |
770 | int slot, | |
771 | int second_map) | |
7eef0453 DW |
772 | { |
773 | struct imsm_map *map; | |
774 | ||
5e7b0330 | 775 | map = get_imsm_map(dev, second_map); |
7eef0453 | 776 | |
ff077194 DW |
777 | /* top byte identifies disk under rebuild */ |
778 | return __le32_to_cpu(map->disk_ord_tbl[slot]); | |
779 | } | |
780 | ||
781 | #define ord_to_idx(ord) (((ord) << 8) >> 8) | |
98130f40 | 782 | static __u32 get_imsm_disk_idx(struct imsm_dev *dev, int slot, int second_map) |
ff077194 | 783 | { |
98130f40 | 784 | __u32 ord = get_imsm_ord_tbl_ent(dev, slot, second_map); |
ff077194 DW |
785 | |
786 | return ord_to_idx(ord); | |
7eef0453 DW |
787 | } |
788 | ||
be73972f DW |
789 | static void set_imsm_ord_tbl_ent(struct imsm_map *map, int slot, __u32 ord) |
790 | { | |
791 | map->disk_ord_tbl[slot] = __cpu_to_le32(ord); | |
792 | } | |
793 | ||
f21e18ca | 794 | static int get_imsm_disk_slot(struct imsm_map *map, unsigned idx) |
620b1713 DW |
795 | { |
796 | int slot; | |
797 | __u32 ord; | |
798 | ||
799 | for (slot = 0; slot < map->num_members; slot++) { | |
800 | ord = __le32_to_cpu(map->disk_ord_tbl[slot]); | |
801 | if (ord_to_idx(ord) == idx) | |
802 | return slot; | |
803 | } | |
804 | ||
805 | return -1; | |
806 | } | |
807 | ||
cdddbdbc DW |
808 | static int get_imsm_raid_level(struct imsm_map *map) |
809 | { | |
810 | if (map->raid_level == 1) { | |
811 | if (map->num_members == 2) | |
812 | return 1; | |
813 | else | |
814 | return 10; | |
815 | } | |
816 | ||
817 | return map->raid_level; | |
818 | } | |
819 | ||
c2c087e6 DW |
820 | static int cmp_extent(const void *av, const void *bv) |
821 | { | |
822 | const struct extent *a = av; | |
823 | const struct extent *b = bv; | |
824 | if (a->start < b->start) | |
825 | return -1; | |
826 | if (a->start > b->start) | |
827 | return 1; | |
828 | return 0; | |
829 | } | |
830 | ||
0dcecb2e | 831 | static int count_memberships(struct dl *dl, struct intel_super *super) |
c2c087e6 | 832 | { |
c2c087e6 | 833 | int memberships = 0; |
620b1713 | 834 | int i; |
c2c087e6 | 835 | |
949c47a0 DW |
836 | for (i = 0; i < super->anchor->num_raid_devs; i++) { |
837 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
a965f303 | 838 | struct imsm_map *map = get_imsm_map(dev, 0); |
c2c087e6 | 839 | |
620b1713 DW |
840 | if (get_imsm_disk_slot(map, dl->index) >= 0) |
841 | memberships++; | |
c2c087e6 | 842 | } |
0dcecb2e DW |
843 | |
844 | return memberships; | |
845 | } | |
846 | ||
b81221b7 CA |
847 | static __u32 imsm_min_reserved_sectors(struct intel_super *super); |
848 | ||
0dcecb2e DW |
849 | static struct extent *get_extents(struct intel_super *super, struct dl *dl) |
850 | { | |
851 | /* find a list of used extents on the given physical device */ | |
852 | struct extent *rv, *e; | |
620b1713 | 853 | int i; |
0dcecb2e | 854 | int memberships = count_memberships(dl, super); |
b276dd33 DW |
855 | __u32 reservation; |
856 | ||
857 | /* trim the reserved area for spares, so they can join any array | |
858 | * regardless of whether the OROM has assigned sectors from the | |
859 | * IMSM_RESERVED_SECTORS region | |
860 | */ | |
861 | if (dl->index == -1) | |
b81221b7 | 862 | reservation = imsm_min_reserved_sectors(super); |
b276dd33 DW |
863 | else |
864 | reservation = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
0dcecb2e | 865 | |
c2c087e6 DW |
866 | rv = malloc(sizeof(struct extent) * (memberships + 1)); |
867 | if (!rv) | |
868 | return NULL; | |
869 | e = rv; | |
870 | ||
949c47a0 DW |
871 | for (i = 0; i < super->anchor->num_raid_devs; i++) { |
872 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
a965f303 | 873 | struct imsm_map *map = get_imsm_map(dev, 0); |
c2c087e6 | 874 | |
620b1713 DW |
875 | if (get_imsm_disk_slot(map, dl->index) >= 0) { |
876 | e->start = __le32_to_cpu(map->pba_of_lba0); | |
877 | e->size = __le32_to_cpu(map->blocks_per_member); | |
878 | e++; | |
c2c087e6 DW |
879 | } |
880 | } | |
881 | qsort(rv, memberships, sizeof(*rv), cmp_extent); | |
882 | ||
14e8215b DW |
883 | /* determine the start of the metadata |
884 | * when no raid devices are defined use the default | |
885 | * ...otherwise allow the metadata to truncate the value | |
886 | * as is the case with older versions of imsm | |
887 | */ | |
888 | if (memberships) { | |
889 | struct extent *last = &rv[memberships - 1]; | |
890 | __u32 remainder; | |
891 | ||
892 | remainder = __le32_to_cpu(dl->disk.total_blocks) - | |
893 | (last->start + last->size); | |
dda5855f DW |
894 | /* round down to 1k block to satisfy precision of the kernel |
895 | * 'size' interface | |
896 | */ | |
897 | remainder &= ~1UL; | |
898 | /* make sure remainder is still sane */ | |
f21e18ca | 899 | if (remainder < (unsigned)ROUND_UP(super->len, 512) >> 9) |
dda5855f | 900 | remainder = ROUND_UP(super->len, 512) >> 9; |
14e8215b DW |
901 | if (reservation > remainder) |
902 | reservation = remainder; | |
903 | } | |
904 | e->start = __le32_to_cpu(dl->disk.total_blocks) - reservation; | |
c2c087e6 DW |
905 | e->size = 0; |
906 | return rv; | |
907 | } | |
908 | ||
14e8215b DW |
909 | /* try to determine how much space is reserved for metadata from |
910 | * the last get_extents() entry, otherwise fallback to the | |
911 | * default | |
912 | */ | |
913 | static __u32 imsm_reserved_sectors(struct intel_super *super, struct dl *dl) | |
914 | { | |
915 | struct extent *e; | |
916 | int i; | |
917 | __u32 rv; | |
918 | ||
919 | /* for spares just return a minimal reservation which will grow | |
920 | * once the spare is picked up by an array | |
921 | */ | |
922 | if (dl->index == -1) | |
923 | return MPB_SECTOR_CNT; | |
924 | ||
925 | e = get_extents(super, dl); | |
926 | if (!e) | |
927 | return MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
928 | ||
929 | /* scroll to last entry */ | |
930 | for (i = 0; e[i].size; i++) | |
931 | continue; | |
932 | ||
933 | rv = __le32_to_cpu(dl->disk.total_blocks) - e[i].start; | |
934 | ||
935 | free(e); | |
936 | ||
937 | return rv; | |
938 | } | |
939 | ||
25ed7e59 DW |
940 | static int is_spare(struct imsm_disk *disk) |
941 | { | |
942 | return (disk->status & SPARE_DISK) == SPARE_DISK; | |
943 | } | |
944 | ||
945 | static int is_configured(struct imsm_disk *disk) | |
946 | { | |
947 | return (disk->status & CONFIGURED_DISK) == CONFIGURED_DISK; | |
948 | } | |
949 | ||
950 | static int is_failed(struct imsm_disk *disk) | |
951 | { | |
952 | return (disk->status & FAILED_DISK) == FAILED_DISK; | |
953 | } | |
954 | ||
b81221b7 CA |
955 | /* try to determine how much space is reserved for metadata from |
956 | * the last get_extents() entry on the smallest active disk, | |
957 | * otherwise fallback to the default | |
958 | */ | |
959 | static __u32 imsm_min_reserved_sectors(struct intel_super *super) | |
960 | { | |
961 | struct extent *e; | |
962 | int i; | |
963 | __u32 min_active, remainder; | |
964 | __u32 rv = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
965 | struct dl *dl, *dl_min = NULL; | |
966 | ||
967 | if (!super) | |
968 | return rv; | |
969 | ||
970 | min_active = 0; | |
971 | for (dl = super->disks; dl; dl = dl->next) { | |
972 | if (dl->index < 0) | |
973 | continue; | |
974 | if (dl->disk.total_blocks < min_active || min_active == 0) { | |
975 | dl_min = dl; | |
976 | min_active = dl->disk.total_blocks; | |
977 | } | |
978 | } | |
979 | if (!dl_min) | |
980 | return rv; | |
981 | ||
982 | /* find last lba used by subarrays on the smallest active disk */ | |
983 | e = get_extents(super, dl_min); | |
984 | if (!e) | |
985 | return rv; | |
986 | for (i = 0; e[i].size; i++) | |
987 | continue; | |
988 | ||
989 | remainder = min_active - e[i].start; | |
990 | free(e); | |
991 | ||
992 | /* to give priority to recovery we should not require full | |
993 | IMSM_RESERVED_SECTORS from the spare */ | |
994 | rv = MPB_SECTOR_CNT + NUM_BLOCKS_DIRTY_STRIPE_REGION; | |
995 | ||
996 | /* if real reservation is smaller use that value */ | |
997 | return (remainder < rv) ? remainder : rv; | |
998 | } | |
999 | ||
80e7f8c3 AC |
1000 | /* Return minimum size of a spare that can be used in this array*/ |
1001 | static unsigned long long min_acceptable_spare_size_imsm(struct supertype *st) | |
1002 | { | |
1003 | struct intel_super *super = st->sb; | |
1004 | struct dl *dl; | |
1005 | struct extent *e; | |
1006 | int i; | |
1007 | unsigned long long rv = 0; | |
1008 | ||
1009 | if (!super) | |
1010 | return rv; | |
1011 | /* find first active disk in array */ | |
1012 | dl = super->disks; | |
1013 | while (dl && (is_failed(&dl->disk) || dl->index == -1)) | |
1014 | dl = dl->next; | |
1015 | if (!dl) | |
1016 | return rv; | |
1017 | /* find last lba used by subarrays */ | |
1018 | e = get_extents(super, dl); | |
1019 | if (!e) | |
1020 | return rv; | |
1021 | for (i = 0; e[i].size; i++) | |
1022 | continue; | |
1023 | if (i > 0) | |
1024 | rv = e[i-1].start + e[i-1].size; | |
1025 | free(e); | |
b81221b7 | 1026 | |
80e7f8c3 | 1027 | /* add the amount of space needed for metadata */ |
b81221b7 CA |
1028 | rv = rv + imsm_min_reserved_sectors(super); |
1029 | ||
80e7f8c3 AC |
1030 | return rv * 512; |
1031 | } | |
1032 | ||
1799c9e8 | 1033 | #ifndef MDASSEMBLE |
c47b0ff6 AK |
1034 | static __u64 blocks_per_migr_unit(struct intel_super *super, |
1035 | struct imsm_dev *dev); | |
1e5c6983 | 1036 | |
464d40e8 LD |
1037 | static int is_gen_migration(struct imsm_dev *dev); |
1038 | ||
c47b0ff6 AK |
1039 | static void print_imsm_dev(struct intel_super *super, |
1040 | struct imsm_dev *dev, | |
1041 | char *uuid, | |
1042 | int disk_idx) | |
cdddbdbc DW |
1043 | { |
1044 | __u64 sz; | |
0d80bb2f | 1045 | int slot, i; |
a965f303 | 1046 | struct imsm_map *map = get_imsm_map(dev, 0); |
dd8bcb3b | 1047 | struct imsm_map *map2 = get_imsm_map(dev, 1); |
b10b37b8 | 1048 | __u32 ord; |
cdddbdbc DW |
1049 | |
1050 | printf("\n"); | |
1e7bc0ed | 1051 | printf("[%.16s]:\n", dev->volume); |
44470971 | 1052 | printf(" UUID : %s\n", uuid); |
dd8bcb3b AK |
1053 | printf(" RAID Level : %d", get_imsm_raid_level(map)); |
1054 | if (map2) | |
1055 | printf(" <-- %d", get_imsm_raid_level(map2)); | |
1056 | printf("\n"); | |
1057 | printf(" Members : %d", map->num_members); | |
1058 | if (map2) | |
1059 | printf(" <-- %d", map2->num_members); | |
1060 | printf("\n"); | |
0d80bb2f DW |
1061 | printf(" Slots : ["); |
1062 | for (i = 0; i < map->num_members; i++) { | |
dd8bcb3b | 1063 | ord = get_imsm_ord_tbl_ent(dev, i, 0); |
0d80bb2f DW |
1064 | printf("%s", ord & IMSM_ORD_REBUILD ? "_" : "U"); |
1065 | } | |
dd8bcb3b AK |
1066 | printf("]"); |
1067 | if (map2) { | |
1068 | printf(" <-- ["); | |
1069 | for (i = 0; i < map2->num_members; i++) { | |
1070 | ord = get_imsm_ord_tbl_ent(dev, i, 1); | |
1071 | printf("%s", ord & IMSM_ORD_REBUILD ? "_" : "U"); | |
1072 | } | |
1073 | printf("]"); | |
1074 | } | |
1075 | printf("\n"); | |
7095bccb AK |
1076 | printf(" Failed disk : "); |
1077 | if (map->failed_disk_num == 0xff) | |
1078 | printf("none"); | |
1079 | else | |
1080 | printf("%i", map->failed_disk_num); | |
1081 | printf("\n"); | |
620b1713 DW |
1082 | slot = get_imsm_disk_slot(map, disk_idx); |
1083 | if (slot >= 0) { | |
98130f40 | 1084 | ord = get_imsm_ord_tbl_ent(dev, slot, -1); |
b10b37b8 DW |
1085 | printf(" This Slot : %d%s\n", slot, |
1086 | ord & IMSM_ORD_REBUILD ? " (out-of-sync)" : ""); | |
1087 | } else | |
cdddbdbc DW |
1088 | printf(" This Slot : ?\n"); |
1089 | sz = __le32_to_cpu(dev->size_high); | |
1090 | sz <<= 32; | |
1091 | sz += __le32_to_cpu(dev->size_low); | |
1092 | printf(" Array Size : %llu%s\n", (unsigned long long)sz, | |
1093 | human_size(sz * 512)); | |
1094 | sz = __le32_to_cpu(map->blocks_per_member); | |
1095 | printf(" Per Dev Size : %llu%s\n", (unsigned long long)sz, | |
1096 | human_size(sz * 512)); | |
1097 | printf(" Sector Offset : %u\n", | |
1098 | __le32_to_cpu(map->pba_of_lba0)); | |
1099 | printf(" Num Stripes : %u\n", | |
1100 | __le32_to_cpu(map->num_data_stripes)); | |
dd8bcb3b | 1101 | printf(" Chunk Size : %u KiB", |
cdddbdbc | 1102 | __le16_to_cpu(map->blocks_per_strip) / 2); |
dd8bcb3b AK |
1103 | if (map2) |
1104 | printf(" <-- %u KiB", | |
1105 | __le16_to_cpu(map2->blocks_per_strip) / 2); | |
1106 | printf("\n"); | |
cdddbdbc | 1107 | printf(" Reserved : %d\n", __le32_to_cpu(dev->reserved_blocks)); |
8655a7b1 | 1108 | printf(" Migrate State : "); |
1484e727 DW |
1109 | if (dev->vol.migr_state) { |
1110 | if (migr_type(dev) == MIGR_INIT) | |
8655a7b1 | 1111 | printf("initialize\n"); |
1484e727 | 1112 | else if (migr_type(dev) == MIGR_REBUILD) |
8655a7b1 | 1113 | printf("rebuild\n"); |
1484e727 | 1114 | else if (migr_type(dev) == MIGR_VERIFY) |
8655a7b1 | 1115 | printf("check\n"); |
1484e727 | 1116 | else if (migr_type(dev) == MIGR_GEN_MIGR) |
8655a7b1 | 1117 | printf("general migration\n"); |
1484e727 | 1118 | else if (migr_type(dev) == MIGR_STATE_CHANGE) |
8655a7b1 | 1119 | printf("state change\n"); |
1484e727 | 1120 | else if (migr_type(dev) == MIGR_REPAIR) |
8655a7b1 | 1121 | printf("repair\n"); |
1484e727 | 1122 | else |
8655a7b1 DW |
1123 | printf("<unknown:%d>\n", migr_type(dev)); |
1124 | } else | |
1125 | printf("idle\n"); | |
3393c6af DW |
1126 | printf(" Map State : %s", map_state_str[map->map_state]); |
1127 | if (dev->vol.migr_state) { | |
1128 | struct imsm_map *map = get_imsm_map(dev, 1); | |
1e5c6983 | 1129 | |
b10b37b8 | 1130 | printf(" <-- %s", map_state_str[map->map_state]); |
464d40e8 LD |
1131 | printf("\n Checkpoint : %u ", |
1132 | __le32_to_cpu(dev->vol.curr_migr_unit)); | |
1133 | if ((is_gen_migration(dev)) && (super->disks->index > 1)) | |
1134 | printf("(N/A)"); | |
1135 | else | |
1136 | printf("(%llu)", (unsigned long long) | |
1137 | blocks_per_migr_unit(super, dev)); | |
3393c6af DW |
1138 | } |
1139 | printf("\n"); | |
cdddbdbc | 1140 | printf(" Dirty State : %s\n", dev->vol.dirty ? "dirty" : "clean"); |
cdddbdbc DW |
1141 | } |
1142 | ||
0ec1f4e8 | 1143 | static void print_imsm_disk(struct imsm_disk *disk, int index, __u32 reserved) |
cdddbdbc | 1144 | { |
1f24f035 | 1145 | char str[MAX_RAID_SERIAL_LEN + 1]; |
cdddbdbc DW |
1146 | __u64 sz; |
1147 | ||
0ec1f4e8 | 1148 | if (index < -1 || !disk) |
e9d82038 DW |
1149 | return; |
1150 | ||
cdddbdbc | 1151 | printf("\n"); |
1f24f035 | 1152 | snprintf(str, MAX_RAID_SERIAL_LEN + 1, "%s", disk->serial); |
0ec1f4e8 DW |
1153 | if (index >= 0) |
1154 | printf(" Disk%02d Serial : %s\n", index, str); | |
1155 | else | |
1156 | printf(" Disk Serial : %s\n", str); | |
25ed7e59 DW |
1157 | printf(" State :%s%s%s\n", is_spare(disk) ? " spare" : "", |
1158 | is_configured(disk) ? " active" : "", | |
1159 | is_failed(disk) ? " failed" : ""); | |
cdddbdbc | 1160 | printf(" Id : %08x\n", __le32_to_cpu(disk->scsi_id)); |
14e8215b | 1161 | sz = __le32_to_cpu(disk->total_blocks) - reserved; |
cdddbdbc DW |
1162 | printf(" Usable Size : %llu%s\n", (unsigned long long)sz, |
1163 | human_size(sz * 512)); | |
1164 | } | |
1165 | ||
520e69e2 AK |
1166 | void examine_migr_rec_imsm(struct intel_super *super) |
1167 | { | |
1168 | struct migr_record *migr_rec = super->migr_rec; | |
1169 | struct imsm_super *mpb = super->anchor; | |
1170 | int i; | |
1171 | ||
1172 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
1173 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
1174 | if (is_gen_migration(dev) == 0) | |
1175 | continue; | |
1176 | ||
1177 | printf("\nMigration Record Information:"); | |
1178 | if (super->disks->index > 1) { | |
1179 | printf(" Empty\n "); | |
1180 | printf("Examine one of first two disks in array\n"); | |
1181 | break; | |
1182 | } | |
1183 | printf("\n Status : "); | |
1184 | if (__le32_to_cpu(migr_rec->rec_status) == UNIT_SRC_NORMAL) | |
1185 | printf("Normal\n"); | |
1186 | else | |
1187 | printf("Contains Data\n"); | |
1188 | printf(" Current Unit : %u\n", | |
1189 | __le32_to_cpu(migr_rec->curr_migr_unit)); | |
1190 | printf(" Family : %u\n", | |
1191 | __le32_to_cpu(migr_rec->family_num)); | |
1192 | printf(" Ascending : %u\n", | |
1193 | __le32_to_cpu(migr_rec->ascending_migr)); | |
1194 | printf(" Blocks Per Unit : %u\n", | |
1195 | __le32_to_cpu(migr_rec->blocks_per_unit)); | |
1196 | printf(" Dest. Depth Per Unit : %u\n", | |
1197 | __le32_to_cpu(migr_rec->dest_depth_per_unit)); | |
1198 | printf(" Checkpoint Area pba : %u\n", | |
1199 | __le32_to_cpu(migr_rec->ckpt_area_pba)); | |
1200 | printf(" First member lba : %u\n", | |
1201 | __le32_to_cpu(migr_rec->dest_1st_member_lba)); | |
1202 | printf(" Total Number of Units : %u\n", | |
1203 | __le32_to_cpu(migr_rec->num_migr_units)); | |
1204 | printf(" Size of volume : %u\n", | |
1205 | __le32_to_cpu(migr_rec->post_migr_vol_cap)); | |
1206 | printf(" Expansion space for LBA64 : %u\n", | |
1207 | __le32_to_cpu(migr_rec->post_migr_vol_cap_hi)); | |
1208 | printf(" Record was read from : %u\n", | |
1209 | __le32_to_cpu(migr_rec->ckpt_read_disk_num)); | |
1210 | ||
1211 | break; | |
1212 | } | |
1213 | } | |
9e2d750d | 1214 | #endif /* MDASSEMBLE */ |
19482bcc AK |
1215 | /******************************************************************************* |
1216 | * function: imsm_check_attributes | |
1217 | * Description: Function checks if features represented by attributes flags | |
1218 | * are supported by mdadm. | |
1219 | * Parameters: | |
1220 | * attributes - Attributes read from metadata | |
1221 | * Returns: | |
1222 | * 0 - passed attributes contains unsupported features flags | |
1223 | * 1 - all features are supported | |
1224 | ******************************************************************************/ | |
1225 | static int imsm_check_attributes(__u32 attributes) | |
1226 | { | |
1227 | int ret_val = 1; | |
418f9b36 N |
1228 | __u32 not_supported = MPB_ATTRIB_SUPPORTED^0xffffffff; |
1229 | ||
1230 | not_supported &= ~MPB_ATTRIB_IGNORED; | |
19482bcc AK |
1231 | |
1232 | not_supported &= attributes; | |
1233 | if (not_supported) { | |
418f9b36 N |
1234 | fprintf(stderr, Name "(IMSM): Unsupported attributes : %x\n", |
1235 | (unsigned)__le32_to_cpu(not_supported)); | |
19482bcc AK |
1236 | if (not_supported & MPB_ATTRIB_CHECKSUM_VERIFY) { |
1237 | dprintf("\t\tMPB_ATTRIB_CHECKSUM_VERIFY \n"); | |
1238 | not_supported ^= MPB_ATTRIB_CHECKSUM_VERIFY; | |
1239 | } | |
1240 | if (not_supported & MPB_ATTRIB_2TB) { | |
1241 | dprintf("\t\tMPB_ATTRIB_2TB\n"); | |
1242 | not_supported ^= MPB_ATTRIB_2TB; | |
1243 | } | |
1244 | if (not_supported & MPB_ATTRIB_RAID0) { | |
1245 | dprintf("\t\tMPB_ATTRIB_RAID0\n"); | |
1246 | not_supported ^= MPB_ATTRIB_RAID0; | |
1247 | } | |
1248 | if (not_supported & MPB_ATTRIB_RAID1) { | |
1249 | dprintf("\t\tMPB_ATTRIB_RAID1\n"); | |
1250 | not_supported ^= MPB_ATTRIB_RAID1; | |
1251 | } | |
1252 | if (not_supported & MPB_ATTRIB_RAID10) { | |
1253 | dprintf("\t\tMPB_ATTRIB_RAID10\n"); | |
1254 | not_supported ^= MPB_ATTRIB_RAID10; | |
1255 | } | |
1256 | if (not_supported & MPB_ATTRIB_RAID1E) { | |
1257 | dprintf("\t\tMPB_ATTRIB_RAID1E\n"); | |
1258 | not_supported ^= MPB_ATTRIB_RAID1E; | |
1259 | } | |
1260 | if (not_supported & MPB_ATTRIB_RAID5) { | |
1261 | dprintf("\t\tMPB_ATTRIB_RAID5\n"); | |
1262 | not_supported ^= MPB_ATTRIB_RAID5; | |
1263 | } | |
1264 | if (not_supported & MPB_ATTRIB_RAIDCNG) { | |
1265 | dprintf("\t\tMPB_ATTRIB_RAIDCNG\n"); | |
1266 | not_supported ^= MPB_ATTRIB_RAIDCNG; | |
1267 | } | |
1268 | if (not_supported & MPB_ATTRIB_BBM) { | |
1269 | dprintf("\t\tMPB_ATTRIB_BBM\n"); | |
1270 | not_supported ^= MPB_ATTRIB_BBM; | |
1271 | } | |
1272 | if (not_supported & MPB_ATTRIB_CHECKSUM_VERIFY) { | |
1273 | dprintf("\t\tMPB_ATTRIB_CHECKSUM_VERIFY (== MPB_ATTRIB_LEGACY)\n"); | |
1274 | not_supported ^= MPB_ATTRIB_CHECKSUM_VERIFY; | |
1275 | } | |
1276 | if (not_supported & MPB_ATTRIB_EXP_STRIPE_SIZE) { | |
1277 | dprintf("\t\tMPB_ATTRIB_EXP_STRIP_SIZE\n"); | |
1278 | not_supported ^= MPB_ATTRIB_EXP_STRIPE_SIZE; | |
1279 | } | |
1280 | if (not_supported & MPB_ATTRIB_2TB_DISK) { | |
1281 | dprintf("\t\tMPB_ATTRIB_2TB_DISK\n"); | |
1282 | not_supported ^= MPB_ATTRIB_2TB_DISK; | |
1283 | } | |
1284 | if (not_supported & MPB_ATTRIB_NEVER_USE2) { | |
1285 | dprintf("\t\tMPB_ATTRIB_NEVER_USE2\n"); | |
1286 | not_supported ^= MPB_ATTRIB_NEVER_USE2; | |
1287 | } | |
1288 | if (not_supported & MPB_ATTRIB_NEVER_USE) { | |
1289 | dprintf("\t\tMPB_ATTRIB_NEVER_USE\n"); | |
1290 | not_supported ^= MPB_ATTRIB_NEVER_USE; | |
1291 | } | |
1292 | ||
1293 | if (not_supported) | |
1294 | dprintf(Name "(IMSM): Unknown attributes : %x\n", not_supported); | |
1295 | ||
1296 | ret_val = 0; | |
1297 | } | |
1298 | ||
1299 | return ret_val; | |
1300 | } | |
1301 | ||
9e2d750d | 1302 | #ifndef MDASSEMBLE |
a5d85af7 | 1303 | static void getinfo_super_imsm(struct supertype *st, struct mdinfo *info, char *map); |
44470971 | 1304 | |
cdddbdbc DW |
1305 | static void examine_super_imsm(struct supertype *st, char *homehost) |
1306 | { | |
1307 | struct intel_super *super = st->sb; | |
949c47a0 | 1308 | struct imsm_super *mpb = super->anchor; |
cdddbdbc DW |
1309 | char str[MAX_SIGNATURE_LENGTH]; |
1310 | int i; | |
27fd6274 DW |
1311 | struct mdinfo info; |
1312 | char nbuf[64]; | |
cdddbdbc | 1313 | __u32 sum; |
14e8215b | 1314 | __u32 reserved = imsm_reserved_sectors(super, super->disks); |
94827db3 | 1315 | struct dl *dl; |
27fd6274 | 1316 | |
cdddbdbc DW |
1317 | snprintf(str, MPB_SIG_LEN, "%s", mpb->sig); |
1318 | printf(" Magic : %s\n", str); | |
1319 | snprintf(str, strlen(MPB_VERSION_RAID0), "%s", get_imsm_version(mpb)); | |
1320 | printf(" Version : %s\n", get_imsm_version(mpb)); | |
148acb7b | 1321 | printf(" Orig Family : %08x\n", __le32_to_cpu(mpb->orig_family_num)); |
cdddbdbc DW |
1322 | printf(" Family : %08x\n", __le32_to_cpu(mpb->family_num)); |
1323 | printf(" Generation : %08x\n", __le32_to_cpu(mpb->generation_num)); | |
19482bcc AK |
1324 | printf(" Attributes : "); |
1325 | if (imsm_check_attributes(mpb->attributes)) | |
1326 | printf("All supported\n"); | |
1327 | else | |
1328 | printf("not supported\n"); | |
a5d85af7 | 1329 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1330 | fname_from_uuid(st, &info, nbuf, ':'); |
27fd6274 | 1331 | printf(" UUID : %s\n", nbuf + 5); |
cdddbdbc DW |
1332 | sum = __le32_to_cpu(mpb->check_sum); |
1333 | printf(" Checksum : %08x %s\n", sum, | |
949c47a0 | 1334 | __gen_imsm_checksum(mpb) == sum ? "correct" : "incorrect"); |
87eb16df | 1335 | printf(" MPB Sectors : %d\n", mpb_sectors(mpb)); |
cdddbdbc DW |
1336 | printf(" Disks : %d\n", mpb->num_disks); |
1337 | printf(" RAID Devices : %d\n", mpb->num_raid_devs); | |
0ec1f4e8 | 1338 | print_imsm_disk(__get_imsm_disk(mpb, super->disks->index), super->disks->index, reserved); |
604b746f JD |
1339 | if (super->bbm_log) { |
1340 | struct bbm_log *log = super->bbm_log; | |
1341 | ||
1342 | printf("\n"); | |
1343 | printf("Bad Block Management Log:\n"); | |
1344 | printf(" Log Size : %d\n", __le32_to_cpu(mpb->bbm_log_size)); | |
1345 | printf(" Signature : %x\n", __le32_to_cpu(log->signature)); | |
1346 | printf(" Entry Count : %d\n", __le32_to_cpu(log->entry_count)); | |
1347 | printf(" Spare Blocks : %d\n", __le32_to_cpu(log->reserved_spare_block_count)); | |
13a3b65d N |
1348 | printf(" First Spare : %llx\n", |
1349 | (unsigned long long) __le64_to_cpu(log->first_spare_lba)); | |
604b746f | 1350 | } |
44470971 DW |
1351 | for (i = 0; i < mpb->num_raid_devs; i++) { |
1352 | struct mdinfo info; | |
1353 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
1354 | ||
1355 | super->current_vol = i; | |
a5d85af7 | 1356 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1357 | fname_from_uuid(st, &info, nbuf, ':'); |
c47b0ff6 | 1358 | print_imsm_dev(super, dev, nbuf + 5, super->disks->index); |
44470971 | 1359 | } |
cdddbdbc DW |
1360 | for (i = 0; i < mpb->num_disks; i++) { |
1361 | if (i == super->disks->index) | |
1362 | continue; | |
0ec1f4e8 | 1363 | print_imsm_disk(__get_imsm_disk(mpb, i), i, reserved); |
cdddbdbc | 1364 | } |
94827db3 | 1365 | |
0ec1f4e8 DW |
1366 | for (dl = super->disks; dl; dl = dl->next) |
1367 | if (dl->index == -1) | |
1368 | print_imsm_disk(&dl->disk, -1, reserved); | |
520e69e2 AK |
1369 | |
1370 | examine_migr_rec_imsm(super); | |
cdddbdbc DW |
1371 | } |
1372 | ||
061f2c6a | 1373 | static void brief_examine_super_imsm(struct supertype *st, int verbose) |
cdddbdbc | 1374 | { |
27fd6274 | 1375 | /* We just write a generic IMSM ARRAY entry */ |
ff54de6e N |
1376 | struct mdinfo info; |
1377 | char nbuf[64]; | |
1e7bc0ed | 1378 | struct intel_super *super = st->sb; |
1e7bc0ed | 1379 | |
0d5a423f DW |
1380 | if (!super->anchor->num_raid_devs) { |
1381 | printf("ARRAY metadata=imsm\n"); | |
1e7bc0ed | 1382 | return; |
0d5a423f | 1383 | } |
ff54de6e | 1384 | |
a5d85af7 | 1385 | getinfo_super_imsm(st, &info, NULL); |
4737ae25 N |
1386 | fname_from_uuid(st, &info, nbuf, ':'); |
1387 | printf("ARRAY metadata=imsm UUID=%s\n", nbuf + 5); | |
1388 | } | |
1389 | ||
1390 | static void brief_examine_subarrays_imsm(struct supertype *st, int verbose) | |
1391 | { | |
1392 | /* We just write a generic IMSM ARRAY entry */ | |
1393 | struct mdinfo info; | |
1394 | char nbuf[64]; | |
1395 | char nbuf1[64]; | |
1396 | struct intel_super *super = st->sb; | |
1397 | int i; | |
1398 | ||
1399 | if (!super->anchor->num_raid_devs) | |
1400 | return; | |
1401 | ||
a5d85af7 | 1402 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1403 | fname_from_uuid(st, &info, nbuf, ':'); |
1e7bc0ed DW |
1404 | for (i = 0; i < super->anchor->num_raid_devs; i++) { |
1405 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
1406 | ||
1407 | super->current_vol = i; | |
a5d85af7 | 1408 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1409 | fname_from_uuid(st, &info, nbuf1, ':'); |
1124b3cf | 1410 | printf("ARRAY /dev/md/%.16s container=%s member=%d UUID=%s\n", |
cf8de691 | 1411 | dev->volume, nbuf + 5, i, nbuf1 + 5); |
1e7bc0ed | 1412 | } |
cdddbdbc DW |
1413 | } |
1414 | ||
9d84c8ea DW |
1415 | static void export_examine_super_imsm(struct supertype *st) |
1416 | { | |
1417 | struct intel_super *super = st->sb; | |
1418 | struct imsm_super *mpb = super->anchor; | |
1419 | struct mdinfo info; | |
1420 | char nbuf[64]; | |
1421 | ||
a5d85af7 | 1422 | getinfo_super_imsm(st, &info, NULL); |
9d84c8ea DW |
1423 | fname_from_uuid(st, &info, nbuf, ':'); |
1424 | printf("MD_METADATA=imsm\n"); | |
1425 | printf("MD_LEVEL=container\n"); | |
1426 | printf("MD_UUID=%s\n", nbuf+5); | |
1427 | printf("MD_DEVICES=%u\n", mpb->num_disks); | |
1428 | } | |
1429 | ||
cdddbdbc DW |
1430 | static void detail_super_imsm(struct supertype *st, char *homehost) |
1431 | { | |
3ebe00a1 DW |
1432 | struct mdinfo info; |
1433 | char nbuf[64]; | |
1434 | ||
a5d85af7 | 1435 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1436 | fname_from_uuid(st, &info, nbuf, ':'); |
3ebe00a1 | 1437 | printf("\n UUID : %s\n", nbuf + 5); |
cdddbdbc DW |
1438 | } |
1439 | ||
1440 | static void brief_detail_super_imsm(struct supertype *st) | |
1441 | { | |
ff54de6e N |
1442 | struct mdinfo info; |
1443 | char nbuf[64]; | |
a5d85af7 | 1444 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1445 | fname_from_uuid(st, &info, nbuf, ':'); |
ff54de6e | 1446 | printf(" UUID=%s", nbuf + 5); |
cdddbdbc | 1447 | } |
d665cc31 DW |
1448 | |
1449 | static int imsm_read_serial(int fd, char *devname, __u8 *serial); | |
1450 | static void fd2devname(int fd, char *name); | |
1451 | ||
120dc887 | 1452 | static int ahci_enumerate_ports(const char *hba_path, int port_count, int host_base, int verbose) |
d665cc31 | 1453 | { |
120dc887 LM |
1454 | /* dump an unsorted list of devices attached to AHCI Intel storage |
1455 | * controller, as well as non-connected ports | |
d665cc31 DW |
1456 | */ |
1457 | int hba_len = strlen(hba_path) + 1; | |
1458 | struct dirent *ent; | |
1459 | DIR *dir; | |
1460 | char *path = NULL; | |
1461 | int err = 0; | |
1462 | unsigned long port_mask = (1 << port_count) - 1; | |
1463 | ||
f21e18ca | 1464 | if (port_count > (int)sizeof(port_mask) * 8) { |
d665cc31 DW |
1465 | if (verbose) |
1466 | fprintf(stderr, Name ": port_count %d out of range\n", port_count); | |
1467 | return 2; | |
1468 | } | |
1469 | ||
1470 | /* scroll through /sys/dev/block looking for devices attached to | |
1471 | * this hba | |
1472 | */ | |
1473 | dir = opendir("/sys/dev/block"); | |
1474 | for (ent = dir ? readdir(dir) : NULL; ent; ent = readdir(dir)) { | |
1475 | int fd; | |
1476 | char model[64]; | |
1477 | char vendor[64]; | |
1478 | char buf[1024]; | |
1479 | int major, minor; | |
1480 | char *device; | |
1481 | char *c; | |
1482 | int port; | |
1483 | int type; | |
1484 | ||
1485 | if (sscanf(ent->d_name, "%d:%d", &major, &minor) != 2) | |
1486 | continue; | |
1487 | path = devt_to_devpath(makedev(major, minor)); | |
1488 | if (!path) | |
1489 | continue; | |
1490 | if (!path_attached_to_hba(path, hba_path)) { | |
1491 | free(path); | |
1492 | path = NULL; | |
1493 | continue; | |
1494 | } | |
1495 | ||
1496 | /* retrieve the scsi device type */ | |
1497 | if (asprintf(&device, "/sys/dev/block/%d:%d/device/xxxxxxx", major, minor) < 0) { | |
1498 | if (verbose) | |
1499 | fprintf(stderr, Name ": failed to allocate 'device'\n"); | |
1500 | err = 2; | |
1501 | break; | |
1502 | } | |
1503 | sprintf(device, "/sys/dev/block/%d:%d/device/type", major, minor); | |
1504 | if (load_sys(device, buf) != 0) { | |
1505 | if (verbose) | |
1506 | fprintf(stderr, Name ": failed to read device type for %s\n", | |
1507 | path); | |
1508 | err = 2; | |
1509 | free(device); | |
1510 | break; | |
1511 | } | |
1512 | type = strtoul(buf, NULL, 10); | |
1513 | ||
1514 | /* if it's not a disk print the vendor and model */ | |
1515 | if (!(type == 0 || type == 7 || type == 14)) { | |
1516 | vendor[0] = '\0'; | |
1517 | model[0] = '\0'; | |
1518 | sprintf(device, "/sys/dev/block/%d:%d/device/vendor", major, minor); | |
1519 | if (load_sys(device, buf) == 0) { | |
1520 | strncpy(vendor, buf, sizeof(vendor)); | |
1521 | vendor[sizeof(vendor) - 1] = '\0'; | |
1522 | c = (char *) &vendor[sizeof(vendor) - 1]; | |
1523 | while (isspace(*c) || *c == '\0') | |
1524 | *c-- = '\0'; | |
1525 | ||
1526 | } | |
1527 | sprintf(device, "/sys/dev/block/%d:%d/device/model", major, minor); | |
1528 | if (load_sys(device, buf) == 0) { | |
1529 | strncpy(model, buf, sizeof(model)); | |
1530 | model[sizeof(model) - 1] = '\0'; | |
1531 | c = (char *) &model[sizeof(model) - 1]; | |
1532 | while (isspace(*c) || *c == '\0') | |
1533 | *c-- = '\0'; | |
1534 | } | |
1535 | ||
1536 | if (vendor[0] && model[0]) | |
1537 | sprintf(buf, "%.64s %.64s", vendor, model); | |
1538 | else | |
1539 | switch (type) { /* numbers from hald/linux/device.c */ | |
1540 | case 1: sprintf(buf, "tape"); break; | |
1541 | case 2: sprintf(buf, "printer"); break; | |
1542 | case 3: sprintf(buf, "processor"); break; | |
1543 | case 4: | |
1544 | case 5: sprintf(buf, "cdrom"); break; | |
1545 | case 6: sprintf(buf, "scanner"); break; | |
1546 | case 8: sprintf(buf, "media_changer"); break; | |
1547 | case 9: sprintf(buf, "comm"); break; | |
1548 | case 12: sprintf(buf, "raid"); break; | |
1549 | default: sprintf(buf, "unknown"); | |
1550 | } | |
1551 | } else | |
1552 | buf[0] = '\0'; | |
1553 | free(device); | |
1554 | ||
1555 | /* chop device path to 'host%d' and calculate the port number */ | |
1556 | c = strchr(&path[hba_len], '/'); | |
4e5e717d AW |
1557 | if (!c) { |
1558 | if (verbose) | |
1559 | fprintf(stderr, Name ": %s - invalid path name\n", path + hba_len); | |
1560 | err = 2; | |
1561 | break; | |
1562 | } | |
d665cc31 DW |
1563 | *c = '\0'; |
1564 | if (sscanf(&path[hba_len], "host%d", &port) == 1) | |
1565 | port -= host_base; | |
1566 | else { | |
1567 | if (verbose) { | |
1568 | *c = '/'; /* repair the full string */ | |
1569 | fprintf(stderr, Name ": failed to determine port number for %s\n", | |
1570 | path); | |
1571 | } | |
1572 | err = 2; | |
1573 | break; | |
1574 | } | |
1575 | ||
1576 | /* mark this port as used */ | |
1577 | port_mask &= ~(1 << port); | |
1578 | ||
1579 | /* print out the device information */ | |
1580 | if (buf[0]) { | |
1581 | printf(" Port%d : - non-disk device (%s) -\n", port, buf); | |
1582 | continue; | |
1583 | } | |
1584 | ||
1585 | fd = dev_open(ent->d_name, O_RDONLY); | |
1586 | if (fd < 0) | |
1587 | printf(" Port%d : - disk info unavailable -\n", port); | |
1588 | else { | |
1589 | fd2devname(fd, buf); | |
1590 | printf(" Port%d : %s", port, buf); | |
1591 | if (imsm_read_serial(fd, NULL, (__u8 *) buf) == 0) | |
664d5325 | 1592 | printf(" (%.*s)\n", MAX_RAID_SERIAL_LEN, buf); |
d665cc31 | 1593 | else |
664d5325 | 1594 | printf(" ()\n"); |
4dab422a | 1595 | close(fd); |
d665cc31 | 1596 | } |
d665cc31 DW |
1597 | free(path); |
1598 | path = NULL; | |
1599 | } | |
1600 | if (path) | |
1601 | free(path); | |
1602 | if (dir) | |
1603 | closedir(dir); | |
1604 | if (err == 0) { | |
1605 | int i; | |
1606 | ||
1607 | for (i = 0; i < port_count; i++) | |
1608 | if (port_mask & (1 << i)) | |
1609 | printf(" Port%d : - no device attached -\n", i); | |
1610 | } | |
1611 | ||
1612 | return err; | |
1613 | } | |
1614 | ||
120dc887 LM |
1615 | static void print_found_intel_controllers(struct sys_dev *elem) |
1616 | { | |
1617 | for (; elem; elem = elem->next) { | |
1618 | fprintf(stderr, Name ": found Intel(R) "); | |
1619 | if (elem->type == SYS_DEV_SATA) | |
1620 | fprintf(stderr, "SATA "); | |
155cbb4c LM |
1621 | else if (elem->type == SYS_DEV_SAS) |
1622 | fprintf(stderr, "SAS "); | |
120dc887 LM |
1623 | fprintf(stderr, "RAID controller"); |
1624 | if (elem->pci_id) | |
1625 | fprintf(stderr, " at %s", elem->pci_id); | |
1626 | fprintf(stderr, ".\n"); | |
1627 | } | |
1628 | fflush(stderr); | |
1629 | } | |
1630 | ||
120dc887 LM |
1631 | static int ahci_get_port_count(const char *hba_path, int *port_count) |
1632 | { | |
1633 | struct dirent *ent; | |
1634 | DIR *dir; | |
1635 | int host_base = -1; | |
1636 | ||
1637 | *port_count = 0; | |
1638 | if ((dir = opendir(hba_path)) == NULL) | |
1639 | return -1; | |
1640 | ||
1641 | for (ent = readdir(dir); ent; ent = readdir(dir)) { | |
1642 | int host; | |
1643 | ||
1644 | if (sscanf(ent->d_name, "host%d", &host) != 1) | |
1645 | continue; | |
1646 | if (*port_count == 0) | |
1647 | host_base = host; | |
1648 | else if (host < host_base) | |
1649 | host_base = host; | |
1650 | ||
1651 | if (host + 1 > *port_count + host_base) | |
1652 | *port_count = host + 1 - host_base; | |
1653 | } | |
1654 | closedir(dir); | |
1655 | return host_base; | |
1656 | } | |
1657 | ||
a891a3c2 LM |
1658 | static void print_imsm_capability(const struct imsm_orom *orom) |
1659 | { | |
1660 | printf(" Platform : Intel(R) Matrix Storage Manager\n"); | |
1661 | printf(" Version : %d.%d.%d.%d\n", orom->major_ver, orom->minor_ver, | |
1662 | orom->hotfix_ver, orom->build); | |
1663 | printf(" RAID Levels :%s%s%s%s%s\n", | |
1664 | imsm_orom_has_raid0(orom) ? " raid0" : "", | |
1665 | imsm_orom_has_raid1(orom) ? " raid1" : "", | |
1666 | imsm_orom_has_raid1e(orom) ? " raid1e" : "", | |
1667 | imsm_orom_has_raid10(orom) ? " raid10" : "", | |
1668 | imsm_orom_has_raid5(orom) ? " raid5" : ""); | |
1669 | printf(" Chunk Sizes :%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", | |
1670 | imsm_orom_has_chunk(orom, 2) ? " 2k" : "", | |
1671 | imsm_orom_has_chunk(orom, 4) ? " 4k" : "", | |
1672 | imsm_orom_has_chunk(orom, 8) ? " 8k" : "", | |
1673 | imsm_orom_has_chunk(orom, 16) ? " 16k" : "", | |
1674 | imsm_orom_has_chunk(orom, 32) ? " 32k" : "", | |
1675 | imsm_orom_has_chunk(orom, 64) ? " 64k" : "", | |
1676 | imsm_orom_has_chunk(orom, 128) ? " 128k" : "", | |
1677 | imsm_orom_has_chunk(orom, 256) ? " 256k" : "", | |
1678 | imsm_orom_has_chunk(orom, 512) ? " 512k" : "", | |
1679 | imsm_orom_has_chunk(orom, 1024*1) ? " 1M" : "", | |
1680 | imsm_orom_has_chunk(orom, 1024*2) ? " 2M" : "", | |
1681 | imsm_orom_has_chunk(orom, 1024*4) ? " 4M" : "", | |
1682 | imsm_orom_has_chunk(orom, 1024*8) ? " 8M" : "", | |
1683 | imsm_orom_has_chunk(orom, 1024*16) ? " 16M" : "", | |
1684 | imsm_orom_has_chunk(orom, 1024*32) ? " 32M" : "", | |
1685 | imsm_orom_has_chunk(orom, 1024*64) ? " 64M" : ""); | |
1686 | printf(" Max Disks : %d\n", orom->tds); | |
1687 | printf(" Max Volumes : %d\n", orom->vpa); | |
1688 | return; | |
1689 | } | |
1690 | ||
5615172f | 1691 | static int detail_platform_imsm(int verbose, int enumerate_only) |
d665cc31 DW |
1692 | { |
1693 | /* There are two components to imsm platform support, the ahci SATA | |
1694 | * controller and the option-rom. To find the SATA controller we | |
1695 | * simply look in /sys/bus/pci/drivers/ahci to see if an ahci | |
1696 | * controller with the Intel vendor id is present. This approach | |
1697 | * allows mdadm to leverage the kernel's ahci detection logic, with the | |
1698 | * caveat that if ahci.ko is not loaded mdadm will not be able to | |
1699 | * detect platform raid capabilities. The option-rom resides in a | |
1700 | * platform "Adapter ROM". We scan for its signature to retrieve the | |
1701 | * platform capabilities. If raid support is disabled in the BIOS the | |
1702 | * option-rom capability structure will not be available. | |
1703 | */ | |
1704 | const struct imsm_orom *orom; | |
1705 | struct sys_dev *list, *hba; | |
d665cc31 DW |
1706 | int host_base = 0; |
1707 | int port_count = 0; | |
120dc887 | 1708 | int result=0; |
d665cc31 | 1709 | |
5615172f | 1710 | if (enumerate_only) { |
a891a3c2 | 1711 | if (check_env("IMSM_NO_PLATFORM")) |
5615172f | 1712 | return 0; |
a891a3c2 LM |
1713 | list = find_intel_devices(); |
1714 | if (!list) | |
1715 | return 2; | |
1716 | for (hba = list; hba; hba = hba->next) { | |
1717 | orom = find_imsm_capability(hba->type); | |
1718 | if (!orom) { | |
1719 | result = 2; | |
1720 | break; | |
1721 | } | |
1722 | } | |
1723 | free_sys_dev(&list); | |
1724 | return result; | |
5615172f DW |
1725 | } |
1726 | ||
155cbb4c LM |
1727 | list = find_intel_devices(); |
1728 | if (!list) { | |
d665cc31 | 1729 | if (verbose) |
155cbb4c LM |
1730 | fprintf(stderr, Name ": no active Intel(R) RAID " |
1731 | "controller found.\n"); | |
d665cc31 DW |
1732 | free_sys_dev(&list); |
1733 | return 2; | |
1734 | } else if (verbose) | |
155cbb4c | 1735 | print_found_intel_controllers(list); |
d665cc31 | 1736 | |
a891a3c2 LM |
1737 | for (hba = list; hba; hba = hba->next) { |
1738 | orom = find_imsm_capability(hba->type); | |
1739 | if (!orom) | |
1740 | fprintf(stderr, Name ": imsm capabilities not found for controller: %s (type %s)\n", | |
1741 | hba->path, get_sys_dev_type(hba->type)); | |
1742 | else | |
1743 | print_imsm_capability(orom); | |
d665cc31 DW |
1744 | } |
1745 | ||
120dc887 LM |
1746 | for (hba = list; hba; hba = hba->next) { |
1747 | printf(" I/O Controller : %s (%s)\n", | |
1748 | hba->path, get_sys_dev_type(hba->type)); | |
d665cc31 | 1749 | |
120dc887 LM |
1750 | if (hba->type == SYS_DEV_SATA) { |
1751 | host_base = ahci_get_port_count(hba->path, &port_count); | |
1752 | if (ahci_enumerate_ports(hba->path, port_count, host_base, verbose)) { | |
1753 | if (verbose) | |
1754 | fprintf(stderr, Name ": failed to enumerate " | |
1755 | "ports on SATA controller at %s.", hba->pci_id); | |
1756 | result |= 2; | |
1757 | } | |
1758 | } | |
d665cc31 | 1759 | } |
155cbb4c | 1760 | |
120dc887 LM |
1761 | free_sys_dev(&list); |
1762 | return result; | |
d665cc31 | 1763 | } |
cdddbdbc DW |
1764 | #endif |
1765 | ||
1766 | static int match_home_imsm(struct supertype *st, char *homehost) | |
1767 | { | |
5115ca67 DW |
1768 | /* the imsm metadata format does not specify any host |
1769 | * identification information. We return -1 since we can never | |
1770 | * confirm nor deny whether a given array is "meant" for this | |
148acb7b | 1771 | * host. We rely on compare_super and the 'family_num' fields to |
5115ca67 DW |
1772 | * exclude member disks that do not belong, and we rely on |
1773 | * mdadm.conf to specify the arrays that should be assembled. | |
1774 | * Auto-assembly may still pick up "foreign" arrays. | |
1775 | */ | |
cdddbdbc | 1776 | |
9362c1c8 | 1777 | return -1; |
cdddbdbc DW |
1778 | } |
1779 | ||
1780 | static void uuid_from_super_imsm(struct supertype *st, int uuid[4]) | |
1781 | { | |
51006d85 N |
1782 | /* The uuid returned here is used for: |
1783 | * uuid to put into bitmap file (Create, Grow) | |
1784 | * uuid for backup header when saving critical section (Grow) | |
1785 | * comparing uuids when re-adding a device into an array | |
1786 | * In these cases the uuid required is that of the data-array, | |
1787 | * not the device-set. | |
1788 | * uuid to recognise same set when adding a missing device back | |
1789 | * to an array. This is a uuid for the device-set. | |
1790 | * | |
1791 | * For each of these we can make do with a truncated | |
1792 | * or hashed uuid rather than the original, as long as | |
1793 | * everyone agrees. | |
1794 | * In each case the uuid required is that of the data-array, | |
1795 | * not the device-set. | |
43dad3d6 | 1796 | */ |
51006d85 N |
1797 | /* imsm does not track uuid's so we synthesis one using sha1 on |
1798 | * - The signature (Which is constant for all imsm array, but no matter) | |
148acb7b | 1799 | * - the orig_family_num of the container |
51006d85 N |
1800 | * - the index number of the volume |
1801 | * - the 'serial' number of the volume. | |
1802 | * Hopefully these are all constant. | |
1803 | */ | |
1804 | struct intel_super *super = st->sb; | |
43dad3d6 | 1805 | |
51006d85 N |
1806 | char buf[20]; |
1807 | struct sha1_ctx ctx; | |
1808 | struct imsm_dev *dev = NULL; | |
148acb7b | 1809 | __u32 family_num; |
51006d85 | 1810 | |
148acb7b DW |
1811 | /* some mdadm versions failed to set ->orig_family_num, in which |
1812 | * case fall back to ->family_num. orig_family_num will be | |
1813 | * fixed up with the first metadata update. | |
1814 | */ | |
1815 | family_num = super->anchor->orig_family_num; | |
1816 | if (family_num == 0) | |
1817 | family_num = super->anchor->family_num; | |
51006d85 | 1818 | sha1_init_ctx(&ctx); |
92bd8f8d | 1819 | sha1_process_bytes(super->anchor->sig, MPB_SIG_LEN, &ctx); |
148acb7b | 1820 | sha1_process_bytes(&family_num, sizeof(__u32), &ctx); |
51006d85 N |
1821 | if (super->current_vol >= 0) |
1822 | dev = get_imsm_dev(super, super->current_vol); | |
1823 | if (dev) { | |
1824 | __u32 vol = super->current_vol; | |
1825 | sha1_process_bytes(&vol, sizeof(vol), &ctx); | |
1826 | sha1_process_bytes(dev->volume, MAX_RAID_SERIAL_LEN, &ctx); | |
1827 | } | |
1828 | sha1_finish_ctx(&ctx, buf); | |
1829 | memcpy(uuid, buf, 4*4); | |
cdddbdbc DW |
1830 | } |
1831 | ||
0d481d37 | 1832 | #if 0 |
4f5bc454 DW |
1833 | static void |
1834 | get_imsm_numerical_version(struct imsm_super *mpb, int *m, int *p) | |
cdddbdbc | 1835 | { |
cdddbdbc DW |
1836 | __u8 *v = get_imsm_version(mpb); |
1837 | __u8 *end = mpb->sig + MAX_SIGNATURE_LENGTH; | |
1838 | char major[] = { 0, 0, 0 }; | |
1839 | char minor[] = { 0 ,0, 0 }; | |
1840 | char patch[] = { 0, 0, 0 }; | |
1841 | char *ver_parse[] = { major, minor, patch }; | |
1842 | int i, j; | |
1843 | ||
1844 | i = j = 0; | |
1845 | while (*v != '\0' && v < end) { | |
1846 | if (*v != '.' && j < 2) | |
1847 | ver_parse[i][j++] = *v; | |
1848 | else { | |
1849 | i++; | |
1850 | j = 0; | |
1851 | } | |
1852 | v++; | |
1853 | } | |
1854 | ||
4f5bc454 DW |
1855 | *m = strtol(minor, NULL, 0); |
1856 | *p = strtol(patch, NULL, 0); | |
1857 | } | |
0d481d37 | 1858 | #endif |
4f5bc454 | 1859 | |
1e5c6983 DW |
1860 | static __u32 migr_strip_blocks_resync(struct imsm_dev *dev) |
1861 | { | |
1862 | /* migr_strip_size when repairing or initializing parity */ | |
1863 | struct imsm_map *map = get_imsm_map(dev, 0); | |
1864 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); | |
1865 | ||
1866 | switch (get_imsm_raid_level(map)) { | |
1867 | case 5: | |
1868 | case 10: | |
1869 | return chunk; | |
1870 | default: | |
1871 | return 128*1024 >> 9; | |
1872 | } | |
1873 | } | |
1874 | ||
1875 | static __u32 migr_strip_blocks_rebuild(struct imsm_dev *dev) | |
1876 | { | |
1877 | /* migr_strip_size when rebuilding a degraded disk, no idea why | |
1878 | * this is different than migr_strip_size_resync(), but it's good | |
1879 | * to be compatible | |
1880 | */ | |
1881 | struct imsm_map *map = get_imsm_map(dev, 1); | |
1882 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); | |
1883 | ||
1884 | switch (get_imsm_raid_level(map)) { | |
1885 | case 1: | |
1886 | case 10: | |
1887 | if (map->num_members % map->num_domains == 0) | |
1888 | return 128*1024 >> 9; | |
1889 | else | |
1890 | return chunk; | |
1891 | case 5: | |
1892 | return max((__u32) 64*1024 >> 9, chunk); | |
1893 | default: | |
1894 | return 128*1024 >> 9; | |
1895 | } | |
1896 | } | |
1897 | ||
1898 | static __u32 num_stripes_per_unit_resync(struct imsm_dev *dev) | |
1899 | { | |
1900 | struct imsm_map *lo = get_imsm_map(dev, 0); | |
1901 | struct imsm_map *hi = get_imsm_map(dev, 1); | |
1902 | __u32 lo_chunk = __le32_to_cpu(lo->blocks_per_strip); | |
1903 | __u32 hi_chunk = __le32_to_cpu(hi->blocks_per_strip); | |
1904 | ||
1905 | return max((__u32) 1, hi_chunk / lo_chunk); | |
1906 | } | |
1907 | ||
1908 | static __u32 num_stripes_per_unit_rebuild(struct imsm_dev *dev) | |
1909 | { | |
1910 | struct imsm_map *lo = get_imsm_map(dev, 0); | |
1911 | int level = get_imsm_raid_level(lo); | |
1912 | ||
1913 | if (level == 1 || level == 10) { | |
1914 | struct imsm_map *hi = get_imsm_map(dev, 1); | |
1915 | ||
1916 | return hi->num_domains; | |
1917 | } else | |
1918 | return num_stripes_per_unit_resync(dev); | |
1919 | } | |
1920 | ||
98130f40 | 1921 | static __u8 imsm_num_data_members(struct imsm_dev *dev, int second_map) |
1e5c6983 DW |
1922 | { |
1923 | /* named 'imsm_' because raid0, raid1 and raid10 | |
1924 | * counter-intuitively have the same number of data disks | |
1925 | */ | |
98130f40 | 1926 | struct imsm_map *map = get_imsm_map(dev, second_map); |
1e5c6983 DW |
1927 | |
1928 | switch (get_imsm_raid_level(map)) { | |
1929 | case 0: | |
1930 | case 1: | |
1931 | case 10: | |
1932 | return map->num_members; | |
1933 | case 5: | |
1934 | return map->num_members - 1; | |
1935 | default: | |
1936 | dprintf("%s: unsupported raid level\n", __func__); | |
1937 | return 0; | |
1938 | } | |
1939 | } | |
1940 | ||
1941 | static __u32 parity_segment_depth(struct imsm_dev *dev) | |
1942 | { | |
1943 | struct imsm_map *map = get_imsm_map(dev, 0); | |
1944 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); | |
1945 | ||
1946 | switch(get_imsm_raid_level(map)) { | |
1947 | case 1: | |
1948 | case 10: | |
1949 | return chunk * map->num_domains; | |
1950 | case 5: | |
1951 | return chunk * map->num_members; | |
1952 | default: | |
1953 | return chunk; | |
1954 | } | |
1955 | } | |
1956 | ||
1957 | static __u32 map_migr_block(struct imsm_dev *dev, __u32 block) | |
1958 | { | |
1959 | struct imsm_map *map = get_imsm_map(dev, 1); | |
1960 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); | |
1961 | __u32 strip = block / chunk; | |
1962 | ||
1963 | switch (get_imsm_raid_level(map)) { | |
1964 | case 1: | |
1965 | case 10: { | |
1966 | __u32 vol_strip = (strip * map->num_domains) + 1; | |
1967 | __u32 vol_stripe = vol_strip / map->num_members; | |
1968 | ||
1969 | return vol_stripe * chunk + block % chunk; | |
1970 | } case 5: { | |
1971 | __u32 stripe = strip / (map->num_members - 1); | |
1972 | ||
1973 | return stripe * chunk + block % chunk; | |
1974 | } | |
1975 | default: | |
1976 | return 0; | |
1977 | } | |
1978 | } | |
1979 | ||
c47b0ff6 AK |
1980 | static __u64 blocks_per_migr_unit(struct intel_super *super, |
1981 | struct imsm_dev *dev) | |
1e5c6983 DW |
1982 | { |
1983 | /* calculate the conversion factor between per member 'blocks' | |
1984 | * (md/{resync,rebuild}_start) and imsm migration units, return | |
1985 | * 0 for the 'not migrating' and 'unsupported migration' cases | |
1986 | */ | |
1987 | if (!dev->vol.migr_state) | |
1988 | return 0; | |
1989 | ||
1990 | switch (migr_type(dev)) { | |
c47b0ff6 AK |
1991 | case MIGR_GEN_MIGR: { |
1992 | struct migr_record *migr_rec = super->migr_rec; | |
1993 | return __le32_to_cpu(migr_rec->blocks_per_unit); | |
1994 | } | |
1e5c6983 DW |
1995 | case MIGR_VERIFY: |
1996 | case MIGR_REPAIR: | |
1997 | case MIGR_INIT: { | |
1998 | struct imsm_map *map = get_imsm_map(dev, 0); | |
1999 | __u32 stripes_per_unit; | |
2000 | __u32 blocks_per_unit; | |
2001 | __u32 parity_depth; | |
2002 | __u32 migr_chunk; | |
2003 | __u32 block_map; | |
2004 | __u32 block_rel; | |
2005 | __u32 segment; | |
2006 | __u32 stripe; | |
2007 | __u8 disks; | |
2008 | ||
2009 | /* yes, this is really the translation of migr_units to | |
2010 | * per-member blocks in the 'resync' case | |
2011 | */ | |
2012 | stripes_per_unit = num_stripes_per_unit_resync(dev); | |
2013 | migr_chunk = migr_strip_blocks_resync(dev); | |
98130f40 | 2014 | disks = imsm_num_data_members(dev, 0); |
1e5c6983 | 2015 | blocks_per_unit = stripes_per_unit * migr_chunk * disks; |
7b1ab482 | 2016 | stripe = __le16_to_cpu(map->blocks_per_strip) * disks; |
1e5c6983 DW |
2017 | segment = blocks_per_unit / stripe; |
2018 | block_rel = blocks_per_unit - segment * stripe; | |
2019 | parity_depth = parity_segment_depth(dev); | |
2020 | block_map = map_migr_block(dev, block_rel); | |
2021 | return block_map + parity_depth * segment; | |
2022 | } | |
2023 | case MIGR_REBUILD: { | |
2024 | __u32 stripes_per_unit; | |
2025 | __u32 migr_chunk; | |
2026 | ||
2027 | stripes_per_unit = num_stripes_per_unit_rebuild(dev); | |
2028 | migr_chunk = migr_strip_blocks_rebuild(dev); | |
2029 | return migr_chunk * stripes_per_unit; | |
2030 | } | |
1e5c6983 DW |
2031 | case MIGR_STATE_CHANGE: |
2032 | default: | |
2033 | return 0; | |
2034 | } | |
2035 | } | |
2036 | ||
c2c087e6 DW |
2037 | static int imsm_level_to_layout(int level) |
2038 | { | |
2039 | switch (level) { | |
2040 | case 0: | |
2041 | case 1: | |
2042 | return 0; | |
2043 | case 5: | |
2044 | case 6: | |
a380c027 | 2045 | return ALGORITHM_LEFT_ASYMMETRIC; |
c2c087e6 | 2046 | case 10: |
c92a2527 | 2047 | return 0x102; |
c2c087e6 | 2048 | } |
a18a888e | 2049 | return UnSet; |
c2c087e6 DW |
2050 | } |
2051 | ||
8e59f3d8 AK |
2052 | /******************************************************************************* |
2053 | * Function: read_imsm_migr_rec | |
2054 | * Description: Function reads imsm migration record from last sector of disk | |
2055 | * Parameters: | |
2056 | * fd : disk descriptor | |
2057 | * super : metadata info | |
2058 | * Returns: | |
2059 | * 0 : success, | |
2060 | * -1 : fail | |
2061 | ******************************************************************************/ | |
2062 | static int read_imsm_migr_rec(int fd, struct intel_super *super) | |
2063 | { | |
2064 | int ret_val = -1; | |
2065 | unsigned long long dsize; | |
2066 | ||
2067 | get_dev_size(fd, NULL, &dsize); | |
2068 | if (lseek64(fd, dsize - 512, SEEK_SET) < 0) { | |
2069 | fprintf(stderr, | |
2070 | Name ": Cannot seek to anchor block: %s\n", | |
2071 | strerror(errno)); | |
2072 | goto out; | |
2073 | } | |
2074 | if (read(fd, super->migr_rec_buf, 512) != 512) { | |
2075 | fprintf(stderr, | |
2076 | Name ": Cannot read migr record block: %s\n", | |
2077 | strerror(errno)); | |
2078 | goto out; | |
2079 | } | |
2080 | ret_val = 0; | |
2081 | ||
2082 | out: | |
2083 | return ret_val; | |
2084 | } | |
2085 | ||
2086 | /******************************************************************************* | |
2087 | * Function: load_imsm_migr_rec | |
2088 | * Description: Function reads imsm migration record (it is stored at the last | |
2089 | * sector of disk) | |
2090 | * Parameters: | |
2091 | * super : imsm internal array info | |
2092 | * info : general array info | |
2093 | * Returns: | |
2094 | * 0 : success | |
2095 | * -1 : fail | |
2096 | ******************************************************************************/ | |
2097 | static int load_imsm_migr_rec(struct intel_super *super, struct mdinfo *info) | |
2098 | { | |
2099 | struct mdinfo *sd; | |
2100 | struct dl *dl = NULL; | |
2101 | char nm[30]; | |
2102 | int retval = -1; | |
2103 | int fd = -1; | |
2104 | ||
2105 | if (info) { | |
2106 | for (sd = info->devs ; sd ; sd = sd->next) { | |
2107 | /* read only from one of the first two slots */ | |
2108 | if ((sd->disk.raid_disk > 1) || | |
2109 | (sd->disk.raid_disk < 0)) | |
2110 | continue; | |
2111 | sprintf(nm, "%d:%d", sd->disk.major, sd->disk.minor); | |
2112 | fd = dev_open(nm, O_RDONLY); | |
2113 | if (fd >= 0) | |
2114 | break; | |
2115 | } | |
2116 | } | |
2117 | if (fd < 0) { | |
2118 | for (dl = super->disks; dl; dl = dl->next) { | |
2119 | /* read only from one of the first two slots */ | |
2120 | if (dl->index > 1) | |
2121 | continue; | |
2122 | sprintf(nm, "%d:%d", dl->major, dl->minor); | |
2123 | fd = dev_open(nm, O_RDONLY); | |
2124 | if (fd >= 0) | |
2125 | break; | |
2126 | } | |
2127 | } | |
2128 | if (fd < 0) | |
2129 | goto out; | |
2130 | retval = read_imsm_migr_rec(fd, super); | |
2131 | ||
2132 | out: | |
2133 | if (fd >= 0) | |
2134 | close(fd); | |
2135 | return retval; | |
2136 | } | |
2137 | ||
9e2d750d | 2138 | #ifndef MDASSEMBLE |
c17608ea AK |
2139 | /******************************************************************************* |
2140 | * function: imsm_create_metadata_checkpoint_update | |
2141 | * Description: It creates update for checkpoint change. | |
2142 | * Parameters: | |
2143 | * super : imsm internal array info | |
2144 | * u : pointer to prepared update | |
2145 | * Returns: | |
2146 | * Uptate length. | |
2147 | * If length is equal to 0, input pointer u contains no update | |
2148 | ******************************************************************************/ | |
2149 | static int imsm_create_metadata_checkpoint_update( | |
2150 | struct intel_super *super, | |
2151 | struct imsm_update_general_migration_checkpoint **u) | |
2152 | { | |
2153 | ||
2154 | int update_memory_size = 0; | |
2155 | ||
2156 | dprintf("imsm_create_metadata_checkpoint_update(enter)\n"); | |
2157 | ||
2158 | if (u == NULL) | |
2159 | return 0; | |
2160 | *u = NULL; | |
2161 | ||
2162 | /* size of all update data without anchor */ | |
2163 | update_memory_size = | |
2164 | sizeof(struct imsm_update_general_migration_checkpoint); | |
2165 | ||
2166 | *u = calloc(1, update_memory_size); | |
2167 | if (*u == NULL) { | |
2168 | dprintf("error: cannot get memory for " | |
2169 | "imsm_create_metadata_checkpoint_update update\n"); | |
2170 | return 0; | |
2171 | } | |
2172 | (*u)->type = update_general_migration_checkpoint; | |
2173 | (*u)->curr_migr_unit = __le32_to_cpu(super->migr_rec->curr_migr_unit); | |
2174 | dprintf("imsm_create_metadata_checkpoint_update: prepared for %u\n", | |
2175 | (*u)->curr_migr_unit); | |
2176 | ||
2177 | return update_memory_size; | |
2178 | } | |
2179 | ||
2180 | ||
2181 | static void imsm_update_metadata_locally(struct supertype *st, | |
2182 | void *buf, int len); | |
2183 | ||
687629c2 AK |
2184 | /******************************************************************************* |
2185 | * Function: write_imsm_migr_rec | |
2186 | * Description: Function writes imsm migration record | |
2187 | * (at the last sector of disk) | |
2188 | * Parameters: | |
2189 | * super : imsm internal array info | |
2190 | * Returns: | |
2191 | * 0 : success | |
2192 | * -1 : if fail | |
2193 | ******************************************************************************/ | |
2194 | static int write_imsm_migr_rec(struct supertype *st) | |
2195 | { | |
2196 | struct intel_super *super = st->sb; | |
2197 | unsigned long long dsize; | |
2198 | char nm[30]; | |
2199 | int fd = -1; | |
2200 | int retval = -1; | |
2201 | struct dl *sd; | |
c17608ea AK |
2202 | int len; |
2203 | struct imsm_update_general_migration_checkpoint *u; | |
687629c2 AK |
2204 | |
2205 | for (sd = super->disks ; sd ; sd = sd->next) { | |
2206 | /* write to 2 first slots only */ | |
2207 | if ((sd->index < 0) || (sd->index > 1)) | |
2208 | continue; | |
2209 | sprintf(nm, "%d:%d", sd->major, sd->minor); | |
2210 | fd = dev_open(nm, O_RDWR); | |
2211 | if (fd < 0) | |
2212 | continue; | |
2213 | get_dev_size(fd, NULL, &dsize); | |
2214 | if (lseek64(fd, dsize - 512, SEEK_SET) < 0) { | |
2215 | fprintf(stderr, | |
2216 | Name ": Cannot seek to anchor block: %s\n", | |
2217 | strerror(errno)); | |
2218 | goto out; | |
2219 | } | |
2220 | if (write(fd, super->migr_rec_buf, 512) != 512) { | |
2221 | fprintf(stderr, | |
2222 | Name ": Cannot write migr record block: %s\n", | |
2223 | strerror(errno)); | |
2224 | goto out; | |
2225 | } | |
2226 | close(fd); | |
2227 | fd = -1; | |
2228 | } | |
c17608ea AK |
2229 | /* update checkpoint information in metadata */ |
2230 | len = imsm_create_metadata_checkpoint_update(super, &u); | |
2231 | ||
2232 | if (len <= 0) { | |
2233 | dprintf("imsm: Cannot prepare update\n"); | |
2234 | goto out; | |
2235 | } | |
2236 | /* update metadata locally */ | |
2237 | imsm_update_metadata_locally(st, u, len); | |
2238 | /* and possibly remotely */ | |
2239 | if (st->update_tail) { | |
2240 | append_metadata_update(st, u, len); | |
2241 | /* during reshape we do all work inside metadata handler | |
2242 | * manage_reshape(), so metadata update has to be triggered | |
2243 | * insida it | |
2244 | */ | |
2245 | flush_metadata_updates(st); | |
2246 | st->update_tail = &st->updates; | |
2247 | } else | |
2248 | free(u); | |
687629c2 AK |
2249 | |
2250 | retval = 0; | |
2251 | out: | |
2252 | if (fd >= 0) | |
2253 | close(fd); | |
2254 | return retval; | |
2255 | } | |
9e2d750d | 2256 | #endif /* MDASSEMBLE */ |
687629c2 | 2257 | |
e2962bfc AK |
2258 | /* spare/missing disks activations are not allowe when |
2259 | * array/container performs reshape operation, because | |
2260 | * all arrays in container works on the same disks set | |
2261 | */ | |
2262 | int imsm_reshape_blocks_arrays_changes(struct intel_super *super) | |
2263 | { | |
2264 | int rv = 0; | |
2265 | struct intel_dev *i_dev; | |
2266 | struct imsm_dev *dev; | |
2267 | ||
2268 | /* check whole container | |
2269 | */ | |
2270 | for (i_dev = super->devlist; i_dev; i_dev = i_dev->next) { | |
2271 | dev = i_dev->dev; | |
3ad25638 | 2272 | if (is_gen_migration(dev)) { |
e2962bfc AK |
2273 | /* No repair during any migration in container |
2274 | */ | |
2275 | rv = 1; | |
2276 | break; | |
2277 | } | |
2278 | } | |
2279 | return rv; | |
2280 | } | |
2281 | ||
a5d85af7 | 2282 | static void getinfo_super_imsm_volume(struct supertype *st, struct mdinfo *info, char *dmap) |
bf5a934a DW |
2283 | { |
2284 | struct intel_super *super = st->sb; | |
c47b0ff6 | 2285 | struct migr_record *migr_rec = super->migr_rec; |
949c47a0 | 2286 | struct imsm_dev *dev = get_imsm_dev(super, super->current_vol); |
a965f303 | 2287 | struct imsm_map *map = get_imsm_map(dev, 0); |
81ac8b4d | 2288 | struct imsm_map *prev_map = get_imsm_map(dev, 1); |
b335e593 | 2289 | struct imsm_map *map_to_analyse = map; |
efb30e7f | 2290 | struct dl *dl; |
e207da2f | 2291 | char *devname; |
139dae11 | 2292 | unsigned int component_size_alligment; |
a5d85af7 | 2293 | int map_disks = info->array.raid_disks; |
bf5a934a | 2294 | |
95eeceeb | 2295 | memset(info, 0, sizeof(*info)); |
b335e593 AK |
2296 | if (prev_map) |
2297 | map_to_analyse = prev_map; | |
2298 | ||
ca0748fa | 2299 | dl = super->current_disk; |
9894ec0d | 2300 | |
bf5a934a | 2301 | info->container_member = super->current_vol; |
cd0430a1 | 2302 | info->array.raid_disks = map->num_members; |
b335e593 | 2303 | info->array.level = get_imsm_raid_level(map_to_analyse); |
bf5a934a DW |
2304 | info->array.layout = imsm_level_to_layout(info->array.level); |
2305 | info->array.md_minor = -1; | |
2306 | info->array.ctime = 0; | |
2307 | info->array.utime = 0; | |
b335e593 AK |
2308 | info->array.chunk_size = |
2309 | __le16_to_cpu(map_to_analyse->blocks_per_strip) << 9; | |
301406c9 | 2310 | info->array.state = !dev->vol.dirty; |
da9b4a62 DW |
2311 | info->custom_array_size = __le32_to_cpu(dev->size_high); |
2312 | info->custom_array_size <<= 32; | |
2313 | info->custom_array_size |= __le32_to_cpu(dev->size_low); | |
3ad25638 AK |
2314 | info->recovery_blocked = imsm_reshape_blocks_arrays_changes(st->sb); |
2315 | ||
3f510843 | 2316 | if (is_gen_migration(dev)) { |
3f83228a | 2317 | info->reshape_active = 1; |
b335e593 AK |
2318 | info->new_level = get_imsm_raid_level(map); |
2319 | info->new_layout = imsm_level_to_layout(info->new_level); | |
2320 | info->new_chunk = __le16_to_cpu(map->blocks_per_strip) << 9; | |
3f83228a | 2321 | info->delta_disks = map->num_members - prev_map->num_members; |
493f5dd6 N |
2322 | if (info->delta_disks) { |
2323 | /* this needs to be applied to every array | |
2324 | * in the container. | |
2325 | */ | |
81219e70 | 2326 | info->reshape_active = CONTAINER_RESHAPE; |
493f5dd6 | 2327 | } |
3f83228a N |
2328 | /* We shape information that we give to md might have to be |
2329 | * modify to cope with md's requirement for reshaping arrays. | |
2330 | * For example, when reshaping a RAID0, md requires it to be | |
2331 | * presented as a degraded RAID4. | |
2332 | * Also if a RAID0 is migrating to a RAID5 we need to specify | |
2333 | * the array as already being RAID5, but the 'before' layout | |
2334 | * is a RAID4-like layout. | |
2335 | */ | |
2336 | switch (info->array.level) { | |
2337 | case 0: | |
2338 | switch(info->new_level) { | |
2339 | case 0: | |
2340 | /* conversion is happening as RAID4 */ | |
2341 | info->array.level = 4; | |
2342 | info->array.raid_disks += 1; | |
2343 | break; | |
2344 | case 5: | |
2345 | /* conversion is happening as RAID5 */ | |
2346 | info->array.level = 5; | |
2347 | info->array.layout = ALGORITHM_PARITY_N; | |
3f83228a N |
2348 | info->delta_disks -= 1; |
2349 | break; | |
2350 | default: | |
2351 | /* FIXME error message */ | |
2352 | info->array.level = UnSet; | |
2353 | break; | |
2354 | } | |
2355 | break; | |
2356 | } | |
b335e593 AK |
2357 | } else { |
2358 | info->new_level = UnSet; | |
2359 | info->new_layout = UnSet; | |
2360 | info->new_chunk = info->array.chunk_size; | |
3f83228a | 2361 | info->delta_disks = 0; |
b335e593 | 2362 | } |
ca0748fa | 2363 | |
efb30e7f DW |
2364 | if (dl) { |
2365 | info->disk.major = dl->major; | |
2366 | info->disk.minor = dl->minor; | |
ca0748fa | 2367 | info->disk.number = dl->index; |
656b6b5a N |
2368 | info->disk.raid_disk = get_imsm_disk_slot(map_to_analyse, |
2369 | dl->index); | |
efb30e7f | 2370 | } |
bf5a934a | 2371 | |
b335e593 AK |
2372 | info->data_offset = __le32_to_cpu(map_to_analyse->pba_of_lba0); |
2373 | info->component_size = | |
2374 | __le32_to_cpu(map_to_analyse->blocks_per_member); | |
139dae11 AK |
2375 | |
2376 | /* check component size aligment | |
2377 | */ | |
2378 | component_size_alligment = | |
2379 | info->component_size % (info->array.chunk_size/512); | |
2380 | ||
2381 | if (component_size_alligment && | |
2382 | (info->array.level != 1) && (info->array.level != UnSet)) { | |
2383 | dprintf("imsm: reported component size alligned from %llu ", | |
2384 | info->component_size); | |
2385 | info->component_size -= component_size_alligment; | |
2386 | dprintf("to %llu (%i).\n", | |
2387 | info->component_size, component_size_alligment); | |
2388 | } | |
2389 | ||
301406c9 | 2390 | memset(info->uuid, 0, sizeof(info->uuid)); |
921d9e16 | 2391 | info->recovery_start = MaxSector; |
bf5a934a | 2392 | |
d2e6d5d6 | 2393 | info->reshape_progress = 0; |
b6796ce1 | 2394 | info->resync_start = MaxSector; |
b9172665 AK |
2395 | if ((map_to_analyse->map_state == IMSM_T_STATE_UNINITIALIZED || |
2396 | dev->vol.dirty) && | |
2397 | imsm_reshape_blocks_arrays_changes(super) == 0) { | |
301406c9 | 2398 | info->resync_start = 0; |
b6796ce1 AK |
2399 | } |
2400 | if (dev->vol.migr_state) { | |
1e5c6983 DW |
2401 | switch (migr_type(dev)) { |
2402 | case MIGR_REPAIR: | |
2403 | case MIGR_INIT: { | |
c47b0ff6 AK |
2404 | __u64 blocks_per_unit = blocks_per_migr_unit(super, |
2405 | dev); | |
1e5c6983 DW |
2406 | __u64 units = __le32_to_cpu(dev->vol.curr_migr_unit); |
2407 | ||
2408 | info->resync_start = blocks_per_unit * units; | |
2409 | break; | |
2410 | } | |
d2e6d5d6 | 2411 | case MIGR_GEN_MIGR: { |
c47b0ff6 AK |
2412 | __u64 blocks_per_unit = blocks_per_migr_unit(super, |
2413 | dev); | |
2414 | __u64 units = __le32_to_cpu(migr_rec->curr_migr_unit); | |
04fa9523 AK |
2415 | unsigned long long array_blocks; |
2416 | int used_disks; | |
d2e6d5d6 | 2417 | |
befb629b AK |
2418 | if (__le32_to_cpu(migr_rec->ascending_migr) && |
2419 | (units < | |
2420 | (__le32_to_cpu(migr_rec->num_migr_units)-1)) && | |
2421 | (super->migr_rec->rec_status == | |
2422 | __cpu_to_le32(UNIT_SRC_IN_CP_AREA))) | |
2423 | units++; | |
2424 | ||
d2e6d5d6 | 2425 | info->reshape_progress = blocks_per_unit * units; |
6289d1e0 | 2426 | |
d2e6d5d6 AK |
2427 | dprintf("IMSM: General Migration checkpoint : %llu " |
2428 | "(%llu) -> read reshape progress : %llu\n", | |
19986c72 MB |
2429 | (unsigned long long)units, |
2430 | (unsigned long long)blocks_per_unit, | |
2431 | info->reshape_progress); | |
75156c46 AK |
2432 | |
2433 | used_disks = imsm_num_data_members(dev, 1); | |
2434 | if (used_disks > 0) { | |
2435 | array_blocks = map->blocks_per_member * | |
2436 | used_disks; | |
2437 | /* round array size down to closest MB | |
2438 | */ | |
2439 | info->custom_array_size = (array_blocks | |
2440 | >> SECT_PER_MB_SHIFT) | |
2441 | << SECT_PER_MB_SHIFT; | |
2442 | } | |
d2e6d5d6 | 2443 | } |
1e5c6983 DW |
2444 | case MIGR_VERIFY: |
2445 | /* we could emulate the checkpointing of | |
2446 | * 'sync_action=check' migrations, but for now | |
2447 | * we just immediately complete them | |
2448 | */ | |
2449 | case MIGR_REBUILD: | |
2450 | /* this is handled by container_content_imsm() */ | |
1e5c6983 DW |
2451 | case MIGR_STATE_CHANGE: |
2452 | /* FIXME handle other migrations */ | |
2453 | default: | |
2454 | /* we are not dirty, so... */ | |
2455 | info->resync_start = MaxSector; | |
2456 | } | |
b6796ce1 | 2457 | } |
301406c9 DW |
2458 | |
2459 | strncpy(info->name, (char *) dev->volume, MAX_RAID_SERIAL_LEN); | |
2460 | info->name[MAX_RAID_SERIAL_LEN] = 0; | |
bf5a934a | 2461 | |
f35f2525 N |
2462 | info->array.major_version = -1; |
2463 | info->array.minor_version = -2; | |
e207da2f AW |
2464 | devname = devnum2devname(st->container_dev); |
2465 | *info->text_version = '\0'; | |
2466 | if (devname) | |
2467 | sprintf(info->text_version, "/%s/%d", devname, info->container_member); | |
2468 | free(devname); | |
a67dd8cc | 2469 | info->safe_mode_delay = 4000; /* 4 secs like the Matrix driver */ |
51006d85 | 2470 | uuid_from_super_imsm(st, info->uuid); |
a5d85af7 N |
2471 | |
2472 | if (dmap) { | |
2473 | int i, j; | |
2474 | for (i=0; i<map_disks; i++) { | |
2475 | dmap[i] = 0; | |
2476 | if (i < info->array.raid_disks) { | |
2477 | struct imsm_disk *dsk; | |
98130f40 | 2478 | j = get_imsm_disk_idx(dev, i, -1); |
a5d85af7 N |
2479 | dsk = get_imsm_disk(super, j); |
2480 | if (dsk && (dsk->status & CONFIGURED_DISK)) | |
2481 | dmap[i] = 1; | |
2482 | } | |
2483 | } | |
2484 | } | |
81ac8b4d | 2485 | } |
bf5a934a | 2486 | |
97b4d0e9 DW |
2487 | static __u8 imsm_check_degraded(struct intel_super *super, struct imsm_dev *dev, int failed); |
2488 | static int imsm_count_failed(struct intel_super *super, struct imsm_dev *dev); | |
2489 | ||
2490 | static struct imsm_disk *get_imsm_missing(struct intel_super *super, __u8 index) | |
2491 | { | |
2492 | struct dl *d; | |
2493 | ||
2494 | for (d = super->missing; d; d = d->next) | |
2495 | if (d->index == index) | |
2496 | return &d->disk; | |
2497 | return NULL; | |
2498 | } | |
2499 | ||
a5d85af7 | 2500 | static void getinfo_super_imsm(struct supertype *st, struct mdinfo *info, char *map) |
4f5bc454 DW |
2501 | { |
2502 | struct intel_super *super = st->sb; | |
4f5bc454 | 2503 | struct imsm_disk *disk; |
a5d85af7 | 2504 | int map_disks = info->array.raid_disks; |
ab3cb6b3 N |
2505 | int max_enough = -1; |
2506 | int i; | |
2507 | struct imsm_super *mpb; | |
4f5bc454 | 2508 | |
bf5a934a | 2509 | if (super->current_vol >= 0) { |
a5d85af7 | 2510 | getinfo_super_imsm_volume(st, info, map); |
bf5a934a DW |
2511 | return; |
2512 | } | |
95eeceeb | 2513 | memset(info, 0, sizeof(*info)); |
d23fe947 DW |
2514 | |
2515 | /* Set raid_disks to zero so that Assemble will always pull in valid | |
2516 | * spares | |
2517 | */ | |
2518 | info->array.raid_disks = 0; | |
cdddbdbc DW |
2519 | info->array.level = LEVEL_CONTAINER; |
2520 | info->array.layout = 0; | |
2521 | info->array.md_minor = -1; | |
c2c087e6 | 2522 | info->array.ctime = 0; /* N/A for imsm */ |
cdddbdbc DW |
2523 | info->array.utime = 0; |
2524 | info->array.chunk_size = 0; | |
2525 | ||
2526 | info->disk.major = 0; | |
2527 | info->disk.minor = 0; | |
cdddbdbc | 2528 | info->disk.raid_disk = -1; |
c2c087e6 | 2529 | info->reshape_active = 0; |
f35f2525 N |
2530 | info->array.major_version = -1; |
2531 | info->array.minor_version = -2; | |
c2c087e6 | 2532 | strcpy(info->text_version, "imsm"); |
a67dd8cc | 2533 | info->safe_mode_delay = 0; |
c2c087e6 DW |
2534 | info->disk.number = -1; |
2535 | info->disk.state = 0; | |
c5afc314 | 2536 | info->name[0] = 0; |
921d9e16 | 2537 | info->recovery_start = MaxSector; |
3ad25638 | 2538 | info->recovery_blocked = imsm_reshape_blocks_arrays_changes(st->sb); |
c2c087e6 | 2539 | |
97b4d0e9 | 2540 | /* do we have the all the insync disks that we expect? */ |
ab3cb6b3 | 2541 | mpb = super->anchor; |
97b4d0e9 | 2542 | |
ab3cb6b3 N |
2543 | for (i = 0; i < mpb->num_raid_devs; i++) { |
2544 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
2545 | int failed, enough, j, missing = 0; | |
2546 | struct imsm_map *map; | |
2547 | __u8 state; | |
97b4d0e9 | 2548 | |
ab3cb6b3 N |
2549 | failed = imsm_count_failed(super, dev); |
2550 | state = imsm_check_degraded(super, dev, failed); | |
a510b1c7 | 2551 | map = get_imsm_map(dev, 0); |
ab3cb6b3 N |
2552 | |
2553 | /* any newly missing disks? | |
2554 | * (catches single-degraded vs double-degraded) | |
2555 | */ | |
2556 | for (j = 0; j < map->num_members; j++) { | |
9645010f | 2557 | __u32 ord = get_imsm_ord_tbl_ent(dev, j, 0); |
ab3cb6b3 N |
2558 | __u32 idx = ord_to_idx(ord); |
2559 | ||
2560 | if (!(ord & IMSM_ORD_REBUILD) && | |
2561 | get_imsm_missing(super, idx)) { | |
2562 | missing = 1; | |
2563 | break; | |
2564 | } | |
97b4d0e9 | 2565 | } |
ab3cb6b3 N |
2566 | |
2567 | if (state == IMSM_T_STATE_FAILED) | |
2568 | enough = -1; | |
2569 | else if (state == IMSM_T_STATE_DEGRADED && | |
2570 | (state != map->map_state || missing)) | |
2571 | enough = 0; | |
2572 | else /* we're normal, or already degraded */ | |
2573 | enough = 1; | |
2574 | ||
2575 | /* in the missing/failed disk case check to see | |
2576 | * if at least one array is runnable | |
2577 | */ | |
2578 | max_enough = max(max_enough, enough); | |
2579 | } | |
2580 | dprintf("%s: enough: %d\n", __func__, max_enough); | |
2581 | info->container_enough = max_enough; | |
97b4d0e9 | 2582 | |
4a04ec6c | 2583 | if (super->disks) { |
14e8215b DW |
2584 | __u32 reserved = imsm_reserved_sectors(super, super->disks); |
2585 | ||
b9f594fe | 2586 | disk = &super->disks->disk; |
14e8215b DW |
2587 | info->data_offset = __le32_to_cpu(disk->total_blocks) - reserved; |
2588 | info->component_size = reserved; | |
25ed7e59 | 2589 | info->disk.state = is_configured(disk) ? (1 << MD_DISK_ACTIVE) : 0; |
df474657 DW |
2590 | /* we don't change info->disk.raid_disk here because |
2591 | * this state will be finalized in mdmon after we have | |
2592 | * found the 'most fresh' version of the metadata | |
2593 | */ | |
25ed7e59 DW |
2594 | info->disk.state |= is_failed(disk) ? (1 << MD_DISK_FAULTY) : 0; |
2595 | info->disk.state |= is_spare(disk) ? 0 : (1 << MD_DISK_SYNC); | |
cdddbdbc | 2596 | } |
a575e2a7 DW |
2597 | |
2598 | /* only call uuid_from_super_imsm when this disk is part of a populated container, | |
2599 | * ->compare_super may have updated the 'num_raid_devs' field for spares | |
2600 | */ | |
2601 | if (info->disk.state & (1 << MD_DISK_SYNC) || super->anchor->num_raid_devs) | |
36ba7d48 | 2602 | uuid_from_super_imsm(st, info->uuid); |
22e263f6 AC |
2603 | else |
2604 | memcpy(info->uuid, uuid_zero, sizeof(uuid_zero)); | |
a5d85af7 N |
2605 | |
2606 | /* I don't know how to compute 'map' on imsm, so use safe default */ | |
2607 | if (map) { | |
2608 | int i; | |
2609 | for (i = 0; i < map_disks; i++) | |
2610 | map[i] = 1; | |
2611 | } | |
2612 | ||
cdddbdbc DW |
2613 | } |
2614 | ||
5c4cd5da AC |
2615 | /* allocates memory and fills disk in mdinfo structure |
2616 | * for each disk in array */ | |
2617 | struct mdinfo *getinfo_super_disks_imsm(struct supertype *st) | |
2618 | { | |
2619 | struct mdinfo *mddev = NULL; | |
2620 | struct intel_super *super = st->sb; | |
2621 | struct imsm_disk *disk; | |
2622 | int count = 0; | |
2623 | struct dl *dl; | |
2624 | if (!super || !super->disks) | |
2625 | return NULL; | |
2626 | dl = super->disks; | |
2627 | mddev = malloc(sizeof(*mddev)); | |
2628 | if (!mddev) { | |
2629 | fprintf(stderr, Name ": Failed to allocate memory.\n"); | |
2630 | return NULL; | |
2631 | } | |
2632 | memset(mddev, 0, sizeof(*mddev)); | |
2633 | while (dl) { | |
2634 | struct mdinfo *tmp; | |
2635 | disk = &dl->disk; | |
2636 | tmp = malloc(sizeof(*tmp)); | |
2637 | if (!tmp) { | |
2638 | fprintf(stderr, Name ": Failed to allocate memory.\n"); | |
2639 | if (mddev) | |
2640 | sysfs_free(mddev); | |
2641 | return NULL; | |
2642 | } | |
2643 | memset(tmp, 0, sizeof(*tmp)); | |
2644 | if (mddev->devs) | |
2645 | tmp->next = mddev->devs; | |
2646 | mddev->devs = tmp; | |
2647 | tmp->disk.number = count++; | |
2648 | tmp->disk.major = dl->major; | |
2649 | tmp->disk.minor = dl->minor; | |
2650 | tmp->disk.state = is_configured(disk) ? | |
2651 | (1 << MD_DISK_ACTIVE) : 0; | |
2652 | tmp->disk.state |= is_failed(disk) ? (1 << MD_DISK_FAULTY) : 0; | |
2653 | tmp->disk.state |= is_spare(disk) ? 0 : (1 << MD_DISK_SYNC); | |
2654 | tmp->disk.raid_disk = -1; | |
2655 | dl = dl->next; | |
2656 | } | |
2657 | return mddev; | |
2658 | } | |
2659 | ||
cdddbdbc DW |
2660 | static int update_super_imsm(struct supertype *st, struct mdinfo *info, |
2661 | char *update, char *devname, int verbose, | |
2662 | int uuid_set, char *homehost) | |
2663 | { | |
f352c545 DW |
2664 | /* For 'assemble' and 'force' we need to return non-zero if any |
2665 | * change was made. For others, the return value is ignored. | |
2666 | * Update options are: | |
2667 | * force-one : This device looks a bit old but needs to be included, | |
2668 | * update age info appropriately. | |
2669 | * assemble: clear any 'faulty' flag to allow this device to | |
2670 | * be assembled. | |
2671 | * force-array: Array is degraded but being forced, mark it clean | |
2672 | * if that will be needed to assemble it. | |
2673 | * | |
2674 | * newdev: not used ???? | |
2675 | * grow: Array has gained a new device - this is currently for | |
2676 | * linear only | |
2677 | * resync: mark as dirty so a resync will happen. | |
2678 | * name: update the name - preserving the homehost | |
6e46bf34 | 2679 | * uuid: Change the uuid of the array to match watch is given |
f352c545 DW |
2680 | * |
2681 | * Following are not relevant for this imsm: | |
2682 | * sparc2.2 : update from old dodgey metadata | |
2683 | * super-minor: change the preferred_minor number | |
2684 | * summaries: update redundant counters. | |
f352c545 DW |
2685 | * homehost: update the recorded homehost |
2686 | * _reshape_progress: record new reshape_progress position. | |
2687 | */ | |
6e46bf34 DW |
2688 | int rv = 1; |
2689 | struct intel_super *super = st->sb; | |
2690 | struct imsm_super *mpb; | |
f352c545 | 2691 | |
6e46bf34 DW |
2692 | /* we can only update container info */ |
2693 | if (!super || super->current_vol >= 0 || !super->anchor) | |
2694 | return 1; | |
2695 | ||
2696 | mpb = super->anchor; | |
2697 | ||
2698 | if (strcmp(update, "uuid") == 0 && uuid_set && !info->update_private) | |
1e2b2765 | 2699 | rv = -1; |
6e46bf34 DW |
2700 | else if (strcmp(update, "uuid") == 0 && uuid_set && info->update_private) { |
2701 | mpb->orig_family_num = *((__u32 *) info->update_private); | |
2702 | rv = 0; | |
2703 | } else if (strcmp(update, "uuid") == 0) { | |
2704 | __u32 *new_family = malloc(sizeof(*new_family)); | |
2705 | ||
2706 | /* update orig_family_number with the incoming random | |
2707 | * data, report the new effective uuid, and store the | |
2708 | * new orig_family_num for future updates. | |
2709 | */ | |
2710 | if (new_family) { | |
2711 | memcpy(&mpb->orig_family_num, info->uuid, sizeof(__u32)); | |
2712 | uuid_from_super_imsm(st, info->uuid); | |
2713 | *new_family = mpb->orig_family_num; | |
2714 | info->update_private = new_family; | |
2715 | rv = 0; | |
2716 | } | |
2717 | } else if (strcmp(update, "assemble") == 0) | |
2718 | rv = 0; | |
2719 | else | |
1e2b2765 | 2720 | rv = -1; |
f352c545 | 2721 | |
6e46bf34 DW |
2722 | /* successful update? recompute checksum */ |
2723 | if (rv == 0) | |
2724 | mpb->check_sum = __le32_to_cpu(__gen_imsm_checksum(mpb)); | |
f352c545 DW |
2725 | |
2726 | return rv; | |
cdddbdbc DW |
2727 | } |
2728 | ||
c2c087e6 | 2729 | static size_t disks_to_mpb_size(int disks) |
cdddbdbc | 2730 | { |
c2c087e6 | 2731 | size_t size; |
cdddbdbc | 2732 | |
c2c087e6 DW |
2733 | size = sizeof(struct imsm_super); |
2734 | size += (disks - 1) * sizeof(struct imsm_disk); | |
2735 | size += 2 * sizeof(struct imsm_dev); | |
2736 | /* up to 2 maps per raid device (-2 for imsm_maps in imsm_dev */ | |
2737 | size += (4 - 2) * sizeof(struct imsm_map); | |
2738 | /* 4 possible disk_ord_tbl's */ | |
2739 | size += 4 * (disks - 1) * sizeof(__u32); | |
2740 | ||
2741 | return size; | |
2742 | } | |
2743 | ||
2744 | static __u64 avail_size_imsm(struct supertype *st, __u64 devsize) | |
2745 | { | |
2746 | if (devsize < (MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS)) | |
2747 | return 0; | |
2748 | ||
2749 | return devsize - (MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS); | |
cdddbdbc DW |
2750 | } |
2751 | ||
ba2de7ba DW |
2752 | static void free_devlist(struct intel_super *super) |
2753 | { | |
2754 | struct intel_dev *dv; | |
2755 | ||
2756 | while (super->devlist) { | |
2757 | dv = super->devlist->next; | |
2758 | free(super->devlist->dev); | |
2759 | free(super->devlist); | |
2760 | super->devlist = dv; | |
2761 | } | |
2762 | } | |
2763 | ||
2764 | static void imsm_copy_dev(struct imsm_dev *dest, struct imsm_dev *src) | |
2765 | { | |
2766 | memcpy(dest, src, sizeof_imsm_dev(src, 0)); | |
2767 | } | |
2768 | ||
cdddbdbc DW |
2769 | static int compare_super_imsm(struct supertype *st, struct supertype *tst) |
2770 | { | |
2771 | /* | |
2772 | * return: | |
2773 | * 0 same, or first was empty, and second was copied | |
2774 | * 1 second had wrong number | |
2775 | * 2 wrong uuid | |
2776 | * 3 wrong other info | |
2777 | */ | |
2778 | struct intel_super *first = st->sb; | |
2779 | struct intel_super *sec = tst->sb; | |
2780 | ||
2781 | if (!first) { | |
2782 | st->sb = tst->sb; | |
2783 | tst->sb = NULL; | |
2784 | return 0; | |
2785 | } | |
8603ea6f LM |
2786 | /* in platform dependent environment test if the disks |
2787 | * use the same Intel hba | |
2788 | */ | |
2789 | if (!check_env("IMSM_NO_PLATFORM")) { | |
ea2bc72b LM |
2790 | if (!first->hba || !sec->hba || |
2791 | (first->hba->type != sec->hba->type)) { | |
8603ea6f LM |
2792 | fprintf(stderr, |
2793 | "HBAs of devices does not match %s != %s\n", | |
ea2bc72b LM |
2794 | first->hba ? get_sys_dev_type(first->hba->type) : NULL, |
2795 | sec->hba ? get_sys_dev_type(sec->hba->type) : NULL); | |
8603ea6f LM |
2796 | return 3; |
2797 | } | |
2798 | } | |
cdddbdbc | 2799 | |
d23fe947 DW |
2800 | /* if an anchor does not have num_raid_devs set then it is a free |
2801 | * floating spare | |
2802 | */ | |
2803 | if (first->anchor->num_raid_devs > 0 && | |
2804 | sec->anchor->num_raid_devs > 0) { | |
a2b97981 DW |
2805 | /* Determine if these disks might ever have been |
2806 | * related. Further disambiguation can only take place | |
2807 | * in load_super_imsm_all | |
2808 | */ | |
2809 | __u32 first_family = first->anchor->orig_family_num; | |
2810 | __u32 sec_family = sec->anchor->orig_family_num; | |
2811 | ||
f796af5d DW |
2812 | if (memcmp(first->anchor->sig, sec->anchor->sig, |
2813 | MAX_SIGNATURE_LENGTH) != 0) | |
2814 | return 3; | |
2815 | ||
a2b97981 DW |
2816 | if (first_family == 0) |
2817 | first_family = first->anchor->family_num; | |
2818 | if (sec_family == 0) | |
2819 | sec_family = sec->anchor->family_num; | |
2820 | ||
2821 | if (first_family != sec_family) | |
d23fe947 | 2822 | return 3; |
f796af5d | 2823 | |
d23fe947 | 2824 | } |
cdddbdbc | 2825 | |
f796af5d | 2826 | |
3e372e5a DW |
2827 | /* if 'first' is a spare promote it to a populated mpb with sec's |
2828 | * family number | |
2829 | */ | |
2830 | if (first->anchor->num_raid_devs == 0 && | |
2831 | sec->anchor->num_raid_devs > 0) { | |
78d30f94 | 2832 | int i; |
ba2de7ba DW |
2833 | struct intel_dev *dv; |
2834 | struct imsm_dev *dev; | |
78d30f94 DW |
2835 | |
2836 | /* we need to copy raid device info from sec if an allocation | |
2837 | * fails here we don't associate the spare | |
2838 | */ | |
2839 | for (i = 0; i < sec->anchor->num_raid_devs; i++) { | |
ba2de7ba DW |
2840 | dv = malloc(sizeof(*dv)); |
2841 | if (!dv) | |
2842 | break; | |
2843 | dev = malloc(sizeof_imsm_dev(get_imsm_dev(sec, i), 1)); | |
2844 | if (!dev) { | |
2845 | free(dv); | |
2846 | break; | |
78d30f94 | 2847 | } |
ba2de7ba DW |
2848 | dv->dev = dev; |
2849 | dv->index = i; | |
2850 | dv->next = first->devlist; | |
2851 | first->devlist = dv; | |
78d30f94 | 2852 | } |
709743c5 | 2853 | if (i < sec->anchor->num_raid_devs) { |
ba2de7ba DW |
2854 | /* allocation failure */ |
2855 | free_devlist(first); | |
2856 | fprintf(stderr, "imsm: failed to associate spare\n"); | |
2857 | return 3; | |
78d30f94 | 2858 | } |
3e372e5a | 2859 | first->anchor->num_raid_devs = sec->anchor->num_raid_devs; |
148acb7b | 2860 | first->anchor->orig_family_num = sec->anchor->orig_family_num; |
3e372e5a | 2861 | first->anchor->family_num = sec->anchor->family_num; |
ac6449be | 2862 | memcpy(first->anchor->sig, sec->anchor->sig, MAX_SIGNATURE_LENGTH); |
709743c5 DW |
2863 | for (i = 0; i < sec->anchor->num_raid_devs; i++) |
2864 | imsm_copy_dev(get_imsm_dev(first, i), get_imsm_dev(sec, i)); | |
3e372e5a DW |
2865 | } |
2866 | ||
cdddbdbc DW |
2867 | return 0; |
2868 | } | |
2869 | ||
0030e8d6 DW |
2870 | static void fd2devname(int fd, char *name) |
2871 | { | |
2872 | struct stat st; | |
2873 | char path[256]; | |
33a6535d | 2874 | char dname[PATH_MAX]; |
0030e8d6 DW |
2875 | char *nm; |
2876 | int rv; | |
2877 | ||
2878 | name[0] = '\0'; | |
2879 | if (fstat(fd, &st) != 0) | |
2880 | return; | |
2881 | sprintf(path, "/sys/dev/block/%d:%d", | |
2882 | major(st.st_rdev), minor(st.st_rdev)); | |
2883 | ||
9cf014ec | 2884 | rv = readlink(path, dname, sizeof(dname)-1); |
0030e8d6 DW |
2885 | if (rv <= 0) |
2886 | return; | |
2887 | ||
2888 | dname[rv] = '\0'; | |
2889 | nm = strrchr(dname, '/'); | |
7897de29 JS |
2890 | if (nm) { |
2891 | nm++; | |
2892 | snprintf(name, MAX_RAID_SERIAL_LEN, "/dev/%s", nm); | |
2893 | } | |
0030e8d6 DW |
2894 | } |
2895 | ||
cdddbdbc DW |
2896 | extern int scsi_get_serial(int fd, void *buf, size_t buf_len); |
2897 | ||
2898 | static int imsm_read_serial(int fd, char *devname, | |
2899 | __u8 serial[MAX_RAID_SERIAL_LEN]) | |
2900 | { | |
2901 | unsigned char scsi_serial[255]; | |
cdddbdbc DW |
2902 | int rv; |
2903 | int rsp_len; | |
1f24f035 | 2904 | int len; |
316e2bf4 DW |
2905 | char *dest; |
2906 | char *src; | |
2907 | char *rsp_buf; | |
2908 | int i; | |
cdddbdbc DW |
2909 | |
2910 | memset(scsi_serial, 0, sizeof(scsi_serial)); | |
cdddbdbc | 2911 | |
f9ba0ff1 DW |
2912 | rv = scsi_get_serial(fd, scsi_serial, sizeof(scsi_serial)); |
2913 | ||
40ebbb9c | 2914 | if (rv && check_env("IMSM_DEVNAME_AS_SERIAL")) { |
f9ba0ff1 DW |
2915 | memset(serial, 0, MAX_RAID_SERIAL_LEN); |
2916 | fd2devname(fd, (char *) serial); | |
0030e8d6 DW |
2917 | return 0; |
2918 | } | |
2919 | ||
cdddbdbc DW |
2920 | if (rv != 0) { |
2921 | if (devname) | |
2922 | fprintf(stderr, | |
2923 | Name ": Failed to retrieve serial for %s\n", | |
2924 | devname); | |
2925 | return rv; | |
2926 | } | |
2927 | ||
2928 | rsp_len = scsi_serial[3]; | |
03cd4cc8 DW |
2929 | if (!rsp_len) { |
2930 | if (devname) | |
2931 | fprintf(stderr, | |
2932 | Name ": Failed to retrieve serial for %s\n", | |
2933 | devname); | |
2934 | return 2; | |
2935 | } | |
1f24f035 | 2936 | rsp_buf = (char *) &scsi_serial[4]; |
5c3db629 | 2937 | |
316e2bf4 DW |
2938 | /* trim all whitespace and non-printable characters and convert |
2939 | * ':' to ';' | |
2940 | */ | |
2941 | for (i = 0, dest = rsp_buf; i < rsp_len; i++) { | |
2942 | src = &rsp_buf[i]; | |
2943 | if (*src > 0x20) { | |
2944 | /* ':' is reserved for use in placeholder serial | |
2945 | * numbers for missing disks | |
2946 | */ | |
2947 | if (*src == ':') | |
2948 | *dest++ = ';'; | |
2949 | else | |
2950 | *dest++ = *src; | |
2951 | } | |
2952 | } | |
2953 | len = dest - rsp_buf; | |
2954 | dest = rsp_buf; | |
2955 | ||
2956 | /* truncate leading characters */ | |
2957 | if (len > MAX_RAID_SERIAL_LEN) { | |
2958 | dest += len - MAX_RAID_SERIAL_LEN; | |
1f24f035 | 2959 | len = MAX_RAID_SERIAL_LEN; |
316e2bf4 | 2960 | } |
5c3db629 | 2961 | |
5c3db629 | 2962 | memset(serial, 0, MAX_RAID_SERIAL_LEN); |
316e2bf4 | 2963 | memcpy(serial, dest, len); |
cdddbdbc DW |
2964 | |
2965 | return 0; | |
2966 | } | |
2967 | ||
1f24f035 DW |
2968 | static int serialcmp(__u8 *s1, __u8 *s2) |
2969 | { | |
2970 | return strncmp((char *) s1, (char *) s2, MAX_RAID_SERIAL_LEN); | |
2971 | } | |
2972 | ||
2973 | static void serialcpy(__u8 *dest, __u8 *src) | |
2974 | { | |
2975 | strncpy((char *) dest, (char *) src, MAX_RAID_SERIAL_LEN); | |
2976 | } | |
2977 | ||
54c2c1ea DW |
2978 | static struct dl *serial_to_dl(__u8 *serial, struct intel_super *super) |
2979 | { | |
2980 | struct dl *dl; | |
2981 | ||
2982 | for (dl = super->disks; dl; dl = dl->next) | |
2983 | if (serialcmp(dl->serial, serial) == 0) | |
2984 | break; | |
2985 | ||
2986 | return dl; | |
2987 | } | |
2988 | ||
a2b97981 DW |
2989 | static struct imsm_disk * |
2990 | __serial_to_disk(__u8 *serial, struct imsm_super *mpb, int *idx) | |
2991 | { | |
2992 | int i; | |
2993 | ||
2994 | for (i = 0; i < mpb->num_disks; i++) { | |
2995 | struct imsm_disk *disk = __get_imsm_disk(mpb, i); | |
2996 | ||
2997 | if (serialcmp(disk->serial, serial) == 0) { | |
2998 | if (idx) | |
2999 | *idx = i; | |
3000 | return disk; | |
3001 | } | |
3002 | } | |
3003 | ||
3004 | return NULL; | |
3005 | } | |
3006 | ||
cdddbdbc DW |
3007 | static int |
3008 | load_imsm_disk(int fd, struct intel_super *super, char *devname, int keep_fd) | |
3009 | { | |
a2b97981 | 3010 | struct imsm_disk *disk; |
cdddbdbc DW |
3011 | struct dl *dl; |
3012 | struct stat stb; | |
cdddbdbc | 3013 | int rv; |
a2b97981 | 3014 | char name[40]; |
d23fe947 DW |
3015 | __u8 serial[MAX_RAID_SERIAL_LEN]; |
3016 | ||
3017 | rv = imsm_read_serial(fd, devname, serial); | |
3018 | ||
3019 | if (rv != 0) | |
3020 | return 2; | |
3021 | ||
a2b97981 | 3022 | dl = calloc(1, sizeof(*dl)); |
b9f594fe | 3023 | if (!dl) { |
cdddbdbc DW |
3024 | if (devname) |
3025 | fprintf(stderr, | |
3026 | Name ": failed to allocate disk buffer for %s\n", | |
3027 | devname); | |
3028 | return 2; | |
3029 | } | |
cdddbdbc | 3030 | |
a2b97981 DW |
3031 | fstat(fd, &stb); |
3032 | dl->major = major(stb.st_rdev); | |
3033 | dl->minor = minor(stb.st_rdev); | |
3034 | dl->next = super->disks; | |
3035 | dl->fd = keep_fd ? fd : -1; | |
3036 | assert(super->disks == NULL); | |
3037 | super->disks = dl; | |
3038 | serialcpy(dl->serial, serial); | |
3039 | dl->index = -2; | |
3040 | dl->e = NULL; | |
3041 | fd2devname(fd, name); | |
3042 | if (devname) | |
3043 | dl->devname = strdup(devname); | |
3044 | else | |
3045 | dl->devname = strdup(name); | |
cdddbdbc | 3046 | |
d23fe947 | 3047 | /* look up this disk's index in the current anchor */ |
a2b97981 DW |
3048 | disk = __serial_to_disk(dl->serial, super->anchor, &dl->index); |
3049 | if (disk) { | |
3050 | dl->disk = *disk; | |
3051 | /* only set index on disks that are a member of a | |
3052 | * populated contianer, i.e. one with raid_devs | |
3053 | */ | |
3054 | if (is_failed(&dl->disk)) | |
3f6efecc | 3055 | dl->index = -2; |
a2b97981 DW |
3056 | else if (is_spare(&dl->disk)) |
3057 | dl->index = -1; | |
3f6efecc DW |
3058 | } |
3059 | ||
949c47a0 DW |
3060 | return 0; |
3061 | } | |
3062 | ||
0e600426 | 3063 | #ifndef MDASSEMBLE |
0c046afd DW |
3064 | /* When migrating map0 contains the 'destination' state while map1 |
3065 | * contains the current state. When not migrating map0 contains the | |
3066 | * current state. This routine assumes that map[0].map_state is set to | |
3067 | * the current array state before being called. | |
3068 | * | |
3069 | * Migration is indicated by one of the following states | |
3070 | * 1/ Idle (migr_state=0 map0state=normal||unitialized||degraded||failed) | |
e3bba0e0 | 3071 | * 2/ Initialize (migr_state=1 migr_type=MIGR_INIT map0state=normal |
0c046afd | 3072 | * map1state=unitialized) |
1484e727 | 3073 | * 3/ Repair (Resync) (migr_state=1 migr_type=MIGR_REPAIR map0state=normal |
0c046afd | 3074 | * map1state=normal) |
e3bba0e0 | 3075 | * 4/ Rebuild (migr_state=1 migr_type=MIGR_REBUILD map0state=normal |
0c046afd | 3076 | * map1state=degraded) |
8e59f3d8 AK |
3077 | * 5/ Migration (mig_state=1 migr_type=MIGR_GEN_MIGR map0state=normal |
3078 | * map1state=normal) | |
0c046afd | 3079 | */ |
8e59f3d8 AK |
3080 | static void migrate(struct imsm_dev *dev, struct intel_super *super, |
3081 | __u8 to_state, int migr_type) | |
3393c6af | 3082 | { |
0c046afd | 3083 | struct imsm_map *dest; |
3393c6af DW |
3084 | struct imsm_map *src = get_imsm_map(dev, 0); |
3085 | ||
0c046afd | 3086 | dev->vol.migr_state = 1; |
1484e727 | 3087 | set_migr_type(dev, migr_type); |
f8f603f1 | 3088 | dev->vol.curr_migr_unit = 0; |
0c046afd DW |
3089 | dest = get_imsm_map(dev, 1); |
3090 | ||
0556e1a2 | 3091 | /* duplicate and then set the target end state in map[0] */ |
3393c6af | 3092 | memcpy(dest, src, sizeof_imsm_map(src)); |
28bce06f AK |
3093 | if ((migr_type == MIGR_REBUILD) || |
3094 | (migr_type == MIGR_GEN_MIGR)) { | |
0556e1a2 DW |
3095 | __u32 ord; |
3096 | int i; | |
3097 | ||
3098 | for (i = 0; i < src->num_members; i++) { | |
3099 | ord = __le32_to_cpu(src->disk_ord_tbl[i]); | |
3100 | set_imsm_ord_tbl_ent(src, i, ord_to_idx(ord)); | |
3101 | } | |
3102 | } | |
3103 | ||
8e59f3d8 AK |
3104 | if (migr_type == MIGR_GEN_MIGR) |
3105 | /* Clear migration record */ | |
3106 | memset(super->migr_rec, 0, sizeof(struct migr_record)); | |
3107 | ||
0c046afd | 3108 | src->map_state = to_state; |
949c47a0 | 3109 | } |
f8f603f1 DW |
3110 | |
3111 | static void end_migration(struct imsm_dev *dev, __u8 map_state) | |
3112 | { | |
3113 | struct imsm_map *map = get_imsm_map(dev, 0); | |
0556e1a2 | 3114 | struct imsm_map *prev = get_imsm_map(dev, dev->vol.migr_state); |
28bce06f | 3115 | int i, j; |
0556e1a2 DW |
3116 | |
3117 | /* merge any IMSM_ORD_REBUILD bits that were not successfully | |
3118 | * completed in the last migration. | |
3119 | * | |
28bce06f | 3120 | * FIXME add support for raid-level-migration |
0556e1a2 DW |
3121 | */ |
3122 | for (i = 0; i < prev->num_members; i++) | |
28bce06f AK |
3123 | for (j = 0; j < map->num_members; j++) |
3124 | /* during online capacity expansion | |
3125 | * disks position can be changed if takeover is used | |
3126 | */ | |
3127 | if (ord_to_idx(map->disk_ord_tbl[j]) == | |
3128 | ord_to_idx(prev->disk_ord_tbl[i])) { | |
3129 | map->disk_ord_tbl[j] |= prev->disk_ord_tbl[i]; | |
3130 | break; | |
3131 | } | |
f8f603f1 DW |
3132 | |
3133 | dev->vol.migr_state = 0; | |
ea672ee1 | 3134 | set_migr_type(dev, 0); |
f8f603f1 DW |
3135 | dev->vol.curr_migr_unit = 0; |
3136 | map->map_state = map_state; | |
3137 | } | |
0e600426 | 3138 | #endif |
949c47a0 DW |
3139 | |
3140 | static int parse_raid_devices(struct intel_super *super) | |
3141 | { | |
3142 | int i; | |
3143 | struct imsm_dev *dev_new; | |
4d7b1503 | 3144 | size_t len, len_migr; |
401d313b | 3145 | size_t max_len = 0; |
4d7b1503 DW |
3146 | size_t space_needed = 0; |
3147 | struct imsm_super *mpb = super->anchor; | |
949c47a0 DW |
3148 | |
3149 | for (i = 0; i < super->anchor->num_raid_devs; i++) { | |
3150 | struct imsm_dev *dev_iter = __get_imsm_dev(super->anchor, i); | |
ba2de7ba | 3151 | struct intel_dev *dv; |
949c47a0 | 3152 | |
4d7b1503 DW |
3153 | len = sizeof_imsm_dev(dev_iter, 0); |
3154 | len_migr = sizeof_imsm_dev(dev_iter, 1); | |
3155 | if (len_migr > len) | |
3156 | space_needed += len_migr - len; | |
3157 | ||
ba2de7ba DW |
3158 | dv = malloc(sizeof(*dv)); |
3159 | if (!dv) | |
3160 | return 1; | |
401d313b AK |
3161 | if (max_len < len_migr) |
3162 | max_len = len_migr; | |
3163 | if (max_len > len_migr) | |
3164 | space_needed += max_len - len_migr; | |
3165 | dev_new = malloc(max_len); | |
ba2de7ba DW |
3166 | if (!dev_new) { |
3167 | free(dv); | |
949c47a0 | 3168 | return 1; |
ba2de7ba | 3169 | } |
949c47a0 | 3170 | imsm_copy_dev(dev_new, dev_iter); |
ba2de7ba DW |
3171 | dv->dev = dev_new; |
3172 | dv->index = i; | |
3173 | dv->next = super->devlist; | |
3174 | super->devlist = dv; | |
949c47a0 | 3175 | } |
cdddbdbc | 3176 | |
4d7b1503 DW |
3177 | /* ensure that super->buf is large enough when all raid devices |
3178 | * are migrating | |
3179 | */ | |
3180 | if (__le32_to_cpu(mpb->mpb_size) + space_needed > super->len) { | |
3181 | void *buf; | |
3182 | ||
3183 | len = ROUND_UP(__le32_to_cpu(mpb->mpb_size) + space_needed, 512); | |
3184 | if (posix_memalign(&buf, 512, len) != 0) | |
3185 | return 1; | |
3186 | ||
1f45a8ad DW |
3187 | memcpy(buf, super->buf, super->len); |
3188 | memset(buf + super->len, 0, len - super->len); | |
4d7b1503 DW |
3189 | free(super->buf); |
3190 | super->buf = buf; | |
3191 | super->len = len; | |
3192 | } | |
3193 | ||
cdddbdbc DW |
3194 | return 0; |
3195 | } | |
3196 | ||
604b746f JD |
3197 | /* retrieve a pointer to the bbm log which starts after all raid devices */ |
3198 | struct bbm_log *__get_imsm_bbm_log(struct imsm_super *mpb) | |
3199 | { | |
3200 | void *ptr = NULL; | |
3201 | ||
3202 | if (__le32_to_cpu(mpb->bbm_log_size)) { | |
3203 | ptr = mpb; | |
3204 | ptr += mpb->mpb_size - __le32_to_cpu(mpb->bbm_log_size); | |
3205 | } | |
3206 | ||
3207 | return ptr; | |
3208 | } | |
3209 | ||
e2f41b2c AK |
3210 | /******************************************************************************* |
3211 | * Function: check_mpb_migr_compatibility | |
3212 | * Description: Function checks for unsupported migration features: | |
3213 | * - migration optimization area (pba_of_lba0) | |
3214 | * - descending reshape (ascending_migr) | |
3215 | * Parameters: | |
3216 | * super : imsm metadata information | |
3217 | * Returns: | |
3218 | * 0 : migration is compatible | |
3219 | * -1 : migration is not compatible | |
3220 | ******************************************************************************/ | |
3221 | int check_mpb_migr_compatibility(struct intel_super *super) | |
3222 | { | |
3223 | struct imsm_map *map0, *map1; | |
3224 | struct migr_record *migr_rec = super->migr_rec; | |
3225 | int i; | |
3226 | ||
3227 | for (i = 0; i < super->anchor->num_raid_devs; i++) { | |
3228 | struct imsm_dev *dev_iter = __get_imsm_dev(super->anchor, i); | |
3229 | ||
3230 | if (dev_iter && | |
3231 | dev_iter->vol.migr_state == 1 && | |
3232 | dev_iter->vol.migr_type == MIGR_GEN_MIGR) { | |
3233 | /* This device is migrating */ | |
3234 | map0 = get_imsm_map(dev_iter, 0); | |
3235 | map1 = get_imsm_map(dev_iter, 1); | |
3236 | if (map0->pba_of_lba0 != map1->pba_of_lba0) | |
3237 | /* migration optimization area was used */ | |
3238 | return -1; | |
3239 | if (migr_rec->ascending_migr == 0 | |
3240 | && migr_rec->dest_depth_per_unit > 0) | |
3241 | /* descending reshape not supported yet */ | |
3242 | return -1; | |
3243 | } | |
3244 | } | |
3245 | return 0; | |
3246 | } | |
3247 | ||
d23fe947 | 3248 | static void __free_imsm(struct intel_super *super, int free_disks); |
9ca2c81c | 3249 | |
cdddbdbc | 3250 | /* load_imsm_mpb - read matrix metadata |
f2f5c343 | 3251 | * allocates super->mpb to be freed by free_imsm |
cdddbdbc DW |
3252 | */ |
3253 | static int load_imsm_mpb(int fd, struct intel_super *super, char *devname) | |
3254 | { | |
3255 | unsigned long long dsize; | |
cdddbdbc DW |
3256 | unsigned long long sectors; |
3257 | struct stat; | |
6416d527 | 3258 | struct imsm_super *anchor; |
cdddbdbc DW |
3259 | __u32 check_sum; |
3260 | ||
cdddbdbc | 3261 | get_dev_size(fd, NULL, &dsize); |
64436f06 N |
3262 | if (dsize < 1024) { |
3263 | if (devname) | |
3264 | fprintf(stderr, | |
3265 | Name ": %s: device to small for imsm\n", | |
3266 | devname); | |
3267 | return 1; | |
3268 | } | |
cdddbdbc DW |
3269 | |
3270 | if (lseek64(fd, dsize - (512 * 2), SEEK_SET) < 0) { | |
3271 | if (devname) | |
2e062e82 AK |
3272 | fprintf(stderr, Name |
3273 | ": Cannot seek to anchor block on %s: %s\n", | |
cdddbdbc DW |
3274 | devname, strerror(errno)); |
3275 | return 1; | |
3276 | } | |
3277 | ||
949c47a0 | 3278 | if (posix_memalign((void**)&anchor, 512, 512) != 0) { |
ad97895e DW |
3279 | if (devname) |
3280 | fprintf(stderr, | |
3281 | Name ": Failed to allocate imsm anchor buffer" | |
3282 | " on %s\n", devname); | |
3283 | return 1; | |
3284 | } | |
949c47a0 | 3285 | if (read(fd, anchor, 512) != 512) { |
cdddbdbc DW |
3286 | if (devname) |
3287 | fprintf(stderr, | |
3288 | Name ": Cannot read anchor block on %s: %s\n", | |
3289 | devname, strerror(errno)); | |
6416d527 | 3290 | free(anchor); |
cdddbdbc DW |
3291 | return 1; |
3292 | } | |
3293 | ||
6416d527 | 3294 | if (strncmp((char *) anchor->sig, MPB_SIGNATURE, MPB_SIG_LEN) != 0) { |
cdddbdbc DW |
3295 | if (devname) |
3296 | fprintf(stderr, | |
3297 | Name ": no IMSM anchor on %s\n", devname); | |
6416d527 | 3298 | free(anchor); |
cdddbdbc DW |
3299 | return 2; |
3300 | } | |
3301 | ||
d23fe947 | 3302 | __free_imsm(super, 0); |
f2f5c343 LM |
3303 | /* reload capability and hba */ |
3304 | ||
3305 | /* capability and hba must be updated with new super allocation */ | |
d424212e | 3306 | find_intel_hba_capability(fd, super, devname); |
949c47a0 DW |
3307 | super->len = ROUND_UP(anchor->mpb_size, 512); |
3308 | if (posix_memalign(&super->buf, 512, super->len) != 0) { | |
cdddbdbc DW |
3309 | if (devname) |
3310 | fprintf(stderr, | |
3311 | Name ": unable to allocate %zu byte mpb buffer\n", | |
949c47a0 | 3312 | super->len); |
6416d527 | 3313 | free(anchor); |
cdddbdbc DW |
3314 | return 2; |
3315 | } | |
949c47a0 | 3316 | memcpy(super->buf, anchor, 512); |
cdddbdbc | 3317 | |
6416d527 NB |
3318 | sectors = mpb_sectors(anchor) - 1; |
3319 | free(anchor); | |
8e59f3d8 AK |
3320 | |
3321 | if (posix_memalign(&super->migr_rec_buf, 512, 512) != 0) { | |
3322 | fprintf(stderr, Name | |
3323 | ": %s could not allocate migr_rec buffer\n", __func__); | |
3324 | free(super->buf); | |
3325 | return 2; | |
3326 | } | |
3327 | ||
949c47a0 | 3328 | if (!sectors) { |
ecf45690 DW |
3329 | check_sum = __gen_imsm_checksum(super->anchor); |
3330 | if (check_sum != __le32_to_cpu(super->anchor->check_sum)) { | |
3331 | if (devname) | |
3332 | fprintf(stderr, | |
3333 | Name ": IMSM checksum %x != %x on %s\n", | |
3334 | check_sum, | |
3335 | __le32_to_cpu(super->anchor->check_sum), | |
3336 | devname); | |
3337 | return 2; | |
3338 | } | |
3339 | ||
a2b97981 | 3340 | return 0; |
949c47a0 | 3341 | } |
cdddbdbc DW |
3342 | |
3343 | /* read the extended mpb */ | |
3344 | if (lseek64(fd, dsize - (512 * (2 + sectors)), SEEK_SET) < 0) { | |
3345 | if (devname) | |
3346 | fprintf(stderr, | |
3347 | Name ": Cannot seek to extended mpb on %s: %s\n", | |
3348 | devname, strerror(errno)); | |
3349 | return 1; | |
3350 | } | |
3351 | ||
f21e18ca | 3352 | if ((unsigned)read(fd, super->buf + 512, super->len - 512) != super->len - 512) { |
cdddbdbc DW |
3353 | if (devname) |
3354 | fprintf(stderr, | |
3355 | Name ": Cannot read extended mpb on %s: %s\n", | |
3356 | devname, strerror(errno)); | |
3357 | return 2; | |
3358 | } | |
3359 | ||
949c47a0 DW |
3360 | check_sum = __gen_imsm_checksum(super->anchor); |
3361 | if (check_sum != __le32_to_cpu(super->anchor->check_sum)) { | |
cdddbdbc DW |
3362 | if (devname) |
3363 | fprintf(stderr, | |
3364 | Name ": IMSM checksum %x != %x on %s\n", | |
949c47a0 | 3365 | check_sum, __le32_to_cpu(super->anchor->check_sum), |
cdddbdbc | 3366 | devname); |
db575f3b | 3367 | return 3; |
cdddbdbc DW |
3368 | } |
3369 | ||
604b746f JD |
3370 | /* FIXME the BBM log is disk specific so we cannot use this global |
3371 | * buffer for all disks. Ok for now since we only look at the global | |
3372 | * bbm_log_size parameter to gate assembly | |
3373 | */ | |
3374 | super->bbm_log = __get_imsm_bbm_log(super->anchor); | |
3375 | ||
a2b97981 DW |
3376 | return 0; |
3377 | } | |
3378 | ||
8e59f3d8 AK |
3379 | static int read_imsm_migr_rec(int fd, struct intel_super *super); |
3380 | ||
a2b97981 DW |
3381 | static int |
3382 | load_and_parse_mpb(int fd, struct intel_super *super, char *devname, int keep_fd) | |
3383 | { | |
3384 | int err; | |
3385 | ||
3386 | err = load_imsm_mpb(fd, super, devname); | |
3387 | if (err) | |
3388 | return err; | |
3389 | err = load_imsm_disk(fd, super, devname, keep_fd); | |
3390 | if (err) | |
3391 | return err; | |
3392 | err = parse_raid_devices(super); | |
4d7b1503 | 3393 | |
a2b97981 | 3394 | return err; |
cdddbdbc DW |
3395 | } |
3396 | ||
ae6aad82 DW |
3397 | static void __free_imsm_disk(struct dl *d) |
3398 | { | |
3399 | if (d->fd >= 0) | |
3400 | close(d->fd); | |
3401 | if (d->devname) | |
3402 | free(d->devname); | |
0dcecb2e DW |
3403 | if (d->e) |
3404 | free(d->e); | |
ae6aad82 DW |
3405 | free(d); |
3406 | ||
3407 | } | |
1a64be56 | 3408 | |
cdddbdbc DW |
3409 | static void free_imsm_disks(struct intel_super *super) |
3410 | { | |
47ee5a45 | 3411 | struct dl *d; |
cdddbdbc | 3412 | |
47ee5a45 DW |
3413 | while (super->disks) { |
3414 | d = super->disks; | |
cdddbdbc | 3415 | super->disks = d->next; |
ae6aad82 | 3416 | __free_imsm_disk(d); |
cdddbdbc | 3417 | } |
cb82edca AK |
3418 | while (super->disk_mgmt_list) { |
3419 | d = super->disk_mgmt_list; | |
3420 | super->disk_mgmt_list = d->next; | |
3421 | __free_imsm_disk(d); | |
3422 | } | |
47ee5a45 DW |
3423 | while (super->missing) { |
3424 | d = super->missing; | |
3425 | super->missing = d->next; | |
3426 | __free_imsm_disk(d); | |
3427 | } | |
3428 | ||
cdddbdbc DW |
3429 | } |
3430 | ||
9ca2c81c | 3431 | /* free all the pieces hanging off of a super pointer */ |
d23fe947 | 3432 | static void __free_imsm(struct intel_super *super, int free_disks) |
cdddbdbc | 3433 | { |
88654014 LM |
3434 | struct intel_hba *elem, *next; |
3435 | ||
9ca2c81c | 3436 | if (super->buf) { |
949c47a0 | 3437 | free(super->buf); |
9ca2c81c DW |
3438 | super->buf = NULL; |
3439 | } | |
f2f5c343 LM |
3440 | /* unlink capability description */ |
3441 | super->orom = NULL; | |
8e59f3d8 AK |
3442 | if (super->migr_rec_buf) { |
3443 | free(super->migr_rec_buf); | |
3444 | super->migr_rec_buf = NULL; | |
3445 | } | |
d23fe947 DW |
3446 | if (free_disks) |
3447 | free_imsm_disks(super); | |
ba2de7ba | 3448 | free_devlist(super); |
88654014 LM |
3449 | elem = super->hba; |
3450 | while (elem) { | |
3451 | if (elem->path) | |
3452 | free((void *)elem->path); | |
3453 | next = elem->next; | |
3454 | free(elem); | |
3455 | elem = next; | |
88c32bb1 | 3456 | } |
88654014 | 3457 | super->hba = NULL; |
cdddbdbc DW |
3458 | } |
3459 | ||
9ca2c81c DW |
3460 | static void free_imsm(struct intel_super *super) |
3461 | { | |
d23fe947 | 3462 | __free_imsm(super, 1); |
9ca2c81c DW |
3463 | free(super); |
3464 | } | |
cdddbdbc DW |
3465 | |
3466 | static void free_super_imsm(struct supertype *st) | |
3467 | { | |
3468 | struct intel_super *super = st->sb; | |
3469 | ||
3470 | if (!super) | |
3471 | return; | |
3472 | ||
3473 | free_imsm(super); | |
3474 | st->sb = NULL; | |
3475 | } | |
3476 | ||
49133e57 | 3477 | static struct intel_super *alloc_super(void) |
c2c087e6 DW |
3478 | { |
3479 | struct intel_super *super = malloc(sizeof(*super)); | |
3480 | ||
3481 | if (super) { | |
3482 | memset(super, 0, sizeof(*super)); | |
bf5a934a | 3483 | super->current_vol = -1; |
0dcecb2e | 3484 | super->create_offset = ~((__u32 ) 0); |
c2c087e6 | 3485 | } |
c2c087e6 DW |
3486 | return super; |
3487 | } | |
3488 | ||
f0f5a016 LM |
3489 | /* |
3490 | * find and allocate hba and OROM/EFI based on valid fd of RAID component device | |
3491 | */ | |
d424212e | 3492 | static int find_intel_hba_capability(int fd, struct intel_super *super, char *devname) |
f0f5a016 LM |
3493 | { |
3494 | struct sys_dev *hba_name; | |
3495 | int rv = 0; | |
3496 | ||
3497 | if ((fd < 0) || check_env("IMSM_NO_PLATFORM")) { | |
f2f5c343 | 3498 | super->orom = NULL; |
f0f5a016 LM |
3499 | super->hba = NULL; |
3500 | return 0; | |
3501 | } | |
3502 | hba_name = find_disk_attached_hba(fd, NULL); | |
3503 | if (!hba_name) { | |
d424212e | 3504 | if (devname) |
f0f5a016 LM |
3505 | fprintf(stderr, |
3506 | Name ": %s is not attached to Intel(R) RAID controller.\n", | |
d424212e | 3507 | devname); |
f0f5a016 LM |
3508 | return 1; |
3509 | } | |
3510 | rv = attach_hba_to_super(super, hba_name); | |
3511 | if (rv == 2) { | |
d424212e N |
3512 | if (devname) { |
3513 | struct intel_hba *hba = super->hba; | |
f0f5a016 | 3514 | |
f0f5a016 LM |
3515 | fprintf(stderr, Name ": %s is attached to Intel(R) %s RAID " |
3516 | "controller (%s),\n" | |
3517 | " but the container is assigned to Intel(R) " | |
3518 | "%s RAID controller (", | |
d424212e | 3519 | devname, |
f0f5a016 LM |
3520 | hba_name->path, |
3521 | hba_name->pci_id ? : "Err!", | |
3522 | get_sys_dev_type(hba_name->type)); | |
3523 | ||
f0f5a016 LM |
3524 | while (hba) { |
3525 | fprintf(stderr, "%s", hba->pci_id ? : "Err!"); | |
3526 | if (hba->next) | |
3527 | fprintf(stderr, ", "); | |
3528 | hba = hba->next; | |
3529 | } | |
3530 | ||
3531 | fprintf(stderr, ").\n" | |
3532 | " Mixing devices attached to different controllers " | |
3533 | "is not allowed.\n"); | |
3534 | } | |
3535 | free_sys_dev(&hba_name); | |
3536 | return 2; | |
3537 | } | |
f2f5c343 | 3538 | super->orom = find_imsm_capability(hba_name->type); |
f0f5a016 | 3539 | free_sys_dev(&hba_name); |
f2f5c343 LM |
3540 | if (!super->orom) |
3541 | return 3; | |
f0f5a016 LM |
3542 | return 0; |
3543 | } | |
3544 | ||
47ee5a45 DW |
3545 | /* find_missing - helper routine for load_super_imsm_all that identifies |
3546 | * disks that have disappeared from the system. This routine relies on | |
3547 | * the mpb being uptodate, which it is at load time. | |
3548 | */ | |
3549 | static int find_missing(struct intel_super *super) | |
3550 | { | |
3551 | int i; | |
3552 | struct imsm_super *mpb = super->anchor; | |
3553 | struct dl *dl; | |
3554 | struct imsm_disk *disk; | |
47ee5a45 DW |
3555 | |
3556 | for (i = 0; i < mpb->num_disks; i++) { | |
3557 | disk = __get_imsm_disk(mpb, i); | |
54c2c1ea | 3558 | dl = serial_to_dl(disk->serial, super); |
47ee5a45 DW |
3559 | if (dl) |
3560 | continue; | |
47ee5a45 DW |
3561 | |
3562 | dl = malloc(sizeof(*dl)); | |
3563 | if (!dl) | |
3564 | return 1; | |
3565 | dl->major = 0; | |
3566 | dl->minor = 0; | |
3567 | dl->fd = -1; | |
3568 | dl->devname = strdup("missing"); | |
3569 | dl->index = i; | |
3570 | serialcpy(dl->serial, disk->serial); | |
3571 | dl->disk = *disk; | |
689c9bf3 | 3572 | dl->e = NULL; |
47ee5a45 DW |
3573 | dl->next = super->missing; |
3574 | super->missing = dl; | |
3575 | } | |
3576 | ||
3577 | return 0; | |
3578 | } | |
3579 | ||
3960e579 | 3580 | #ifndef MDASSEMBLE |
a2b97981 DW |
3581 | static struct intel_disk *disk_list_get(__u8 *serial, struct intel_disk *disk_list) |
3582 | { | |
3583 | struct intel_disk *idisk = disk_list; | |
3584 | ||
3585 | while (idisk) { | |
3586 | if (serialcmp(idisk->disk.serial, serial) == 0) | |
3587 | break; | |
3588 | idisk = idisk->next; | |
3589 | } | |
3590 | ||
3591 | return idisk; | |
3592 | } | |
3593 | ||
3594 | static int __prep_thunderdome(struct intel_super **table, int tbl_size, | |
3595 | struct intel_super *super, | |
3596 | struct intel_disk **disk_list) | |
3597 | { | |
3598 | struct imsm_disk *d = &super->disks->disk; | |
3599 | struct imsm_super *mpb = super->anchor; | |
3600 | int i, j; | |
3601 | ||
3602 | for (i = 0; i < tbl_size; i++) { | |
3603 | struct imsm_super *tbl_mpb = table[i]->anchor; | |
3604 | struct imsm_disk *tbl_d = &table[i]->disks->disk; | |
3605 | ||
3606 | if (tbl_mpb->family_num == mpb->family_num) { | |
3607 | if (tbl_mpb->check_sum == mpb->check_sum) { | |
3608 | dprintf("%s: mpb from %d:%d matches %d:%d\n", | |
3609 | __func__, super->disks->major, | |
3610 | super->disks->minor, | |
3611 | table[i]->disks->major, | |
3612 | table[i]->disks->minor); | |
3613 | break; | |
3614 | } | |
3615 | ||
3616 | if (((is_configured(d) && !is_configured(tbl_d)) || | |
3617 | is_configured(d) == is_configured(tbl_d)) && | |
3618 | tbl_mpb->generation_num < mpb->generation_num) { | |
3619 | /* current version of the mpb is a | |
3620 | * better candidate than the one in | |
3621 | * super_table, but copy over "cross | |
3622 | * generational" status | |
3623 | */ | |
3624 | struct intel_disk *idisk; | |
3625 | ||
3626 | dprintf("%s: mpb from %d:%d replaces %d:%d\n", | |
3627 | __func__, super->disks->major, | |
3628 | super->disks->minor, | |
3629 | table[i]->disks->major, | |
3630 | table[i]->disks->minor); | |
3631 | ||
3632 | idisk = disk_list_get(tbl_d->serial, *disk_list); | |
3633 | if (idisk && is_failed(&idisk->disk)) | |
3634 | tbl_d->status |= FAILED_DISK; | |
3635 | break; | |
3636 | } else { | |
3637 | struct intel_disk *idisk; | |
3638 | struct imsm_disk *disk; | |
3639 | ||
3640 | /* tbl_mpb is more up to date, but copy | |
3641 | * over cross generational status before | |
3642 | * returning | |
3643 | */ | |
3644 | disk = __serial_to_disk(d->serial, mpb, NULL); | |
3645 | if (disk && is_failed(disk)) | |
3646 | d->status |= FAILED_DISK; | |
3647 | ||
3648 | idisk = disk_list_get(d->serial, *disk_list); | |
3649 | if (idisk) { | |
3650 | idisk->owner = i; | |
3651 | if (disk && is_configured(disk)) | |
3652 | idisk->disk.status |= CONFIGURED_DISK; | |
3653 | } | |
3654 | ||
3655 | dprintf("%s: mpb from %d:%d prefer %d:%d\n", | |
3656 | __func__, super->disks->major, | |
3657 | super->disks->minor, | |
3658 | table[i]->disks->major, | |
3659 | table[i]->disks->minor); | |
3660 | ||
3661 | return tbl_size; | |
3662 | } | |
3663 | } | |
3664 | } | |
3665 | ||
3666 | if (i >= tbl_size) | |
3667 | table[tbl_size++] = super; | |
3668 | else | |
3669 | table[i] = super; | |
3670 | ||
3671 | /* update/extend the merged list of imsm_disk records */ | |
3672 | for (j = 0; j < mpb->num_disks; j++) { | |
3673 | struct imsm_disk *disk = __get_imsm_disk(mpb, j); | |
3674 | struct intel_disk *idisk; | |
3675 | ||
3676 | idisk = disk_list_get(disk->serial, *disk_list); | |
3677 | if (idisk) { | |
3678 | idisk->disk.status |= disk->status; | |
3679 | if (is_configured(&idisk->disk) || | |
3680 | is_failed(&idisk->disk)) | |
3681 | idisk->disk.status &= ~(SPARE_DISK); | |
3682 | } else { | |
3683 | idisk = calloc(1, sizeof(*idisk)); | |
3684 | if (!idisk) | |
3685 | return -1; | |
3686 | idisk->owner = IMSM_UNKNOWN_OWNER; | |
3687 | idisk->disk = *disk; | |
3688 | idisk->next = *disk_list; | |
3689 | *disk_list = idisk; | |
3690 | } | |
3691 | ||
3692 | if (serialcmp(idisk->disk.serial, d->serial) == 0) | |
3693 | idisk->owner = i; | |
3694 | } | |
3695 | ||
3696 | return tbl_size; | |
3697 | } | |
3698 | ||
3699 | static struct intel_super * | |
3700 | validate_members(struct intel_super *super, struct intel_disk *disk_list, | |
3701 | const int owner) | |
3702 | { | |
3703 | struct imsm_super *mpb = super->anchor; | |
3704 | int ok_count = 0; | |
3705 | int i; | |
3706 | ||
3707 | for (i = 0; i < mpb->num_disks; i++) { | |
3708 | struct imsm_disk *disk = __get_imsm_disk(mpb, i); | |
3709 | struct intel_disk *idisk; | |
3710 | ||
3711 | idisk = disk_list_get(disk->serial, disk_list); | |
3712 | if (idisk) { | |
3713 | if (idisk->owner == owner || | |
3714 | idisk->owner == IMSM_UNKNOWN_OWNER) | |
3715 | ok_count++; | |
3716 | else | |
3717 | dprintf("%s: '%.16s' owner %d != %d\n", | |
3718 | __func__, disk->serial, idisk->owner, | |
3719 | owner); | |
3720 | } else { | |
3721 | dprintf("%s: unknown disk %x [%d]: %.16s\n", | |
3722 | __func__, __le32_to_cpu(mpb->family_num), i, | |
3723 | disk->serial); | |
3724 | break; | |
3725 | } | |
3726 | } | |
3727 | ||
3728 | if (ok_count == mpb->num_disks) | |
3729 | return super; | |
3730 | return NULL; | |
3731 | } | |
3732 | ||
3733 | static void show_conflicts(__u32 family_num, struct intel_super *super_list) | |
3734 | { | |
3735 | struct intel_super *s; | |
3736 | ||
3737 | for (s = super_list; s; s = s->next) { | |
3738 | if (family_num != s->anchor->family_num) | |
3739 | continue; | |
3740 | fprintf(stderr, "Conflict, offlining family %#x on '%s'\n", | |
3741 | __le32_to_cpu(family_num), s->disks->devname); | |
3742 | } | |
3743 | } | |
3744 | ||
3745 | static struct intel_super * | |
3746 | imsm_thunderdome(struct intel_super **super_list, int len) | |
3747 | { | |
3748 | struct intel_super *super_table[len]; | |
3749 | struct intel_disk *disk_list = NULL; | |
3750 | struct intel_super *champion, *spare; | |
3751 | struct intel_super *s, **del; | |
3752 | int tbl_size = 0; | |
3753 | int conflict; | |
3754 | int i; | |
3755 | ||
3756 | memset(super_table, 0, sizeof(super_table)); | |
3757 | for (s = *super_list; s; s = s->next) | |
3758 | tbl_size = __prep_thunderdome(super_table, tbl_size, s, &disk_list); | |
3759 | ||
3760 | for (i = 0; i < tbl_size; i++) { | |
3761 | struct imsm_disk *d; | |
3762 | struct intel_disk *idisk; | |
3763 | struct imsm_super *mpb = super_table[i]->anchor; | |
3764 | ||
3765 | s = super_table[i]; | |
3766 | d = &s->disks->disk; | |
3767 | ||
3768 | /* 'd' must appear in merged disk list for its | |
3769 | * configuration to be valid | |
3770 | */ | |
3771 | idisk = disk_list_get(d->serial, disk_list); | |
3772 | if (idisk && idisk->owner == i) | |
3773 | s = validate_members(s, disk_list, i); | |
3774 | else | |
3775 | s = NULL; | |
3776 | ||
3777 | if (!s) | |
3778 | dprintf("%s: marking family: %#x from %d:%d offline\n", | |
3779 | __func__, mpb->family_num, | |
3780 | super_table[i]->disks->major, | |
3781 | super_table[i]->disks->minor); | |
3782 | super_table[i] = s; | |
3783 | } | |
3784 | ||
3785 | /* This is where the mdadm implementation differs from the Windows | |
3786 | * driver which has no strict concept of a container. We can only | |
3787 | * assemble one family from a container, so when returning a prodigal | |
3788 | * array member to this system the code will not be able to disambiguate | |
3789 | * the container contents that should be assembled ("foreign" versus | |
3790 | * "local"). It requires user intervention to set the orig_family_num | |
3791 | * to a new value to establish a new container. The Windows driver in | |
3792 | * this situation fixes up the volume name in place and manages the | |
3793 | * foreign array as an independent entity. | |
3794 | */ | |
3795 | s = NULL; | |
3796 | spare = NULL; | |
3797 | conflict = 0; | |
3798 | for (i = 0; i < tbl_size; i++) { | |
3799 | struct intel_super *tbl_ent = super_table[i]; | |
3800 | int is_spare = 0; | |
3801 | ||
3802 | if (!tbl_ent) | |
3803 | continue; | |
3804 | ||
3805 | if (tbl_ent->anchor->num_raid_devs == 0) { | |
3806 | spare = tbl_ent; | |
3807 | is_spare = 1; | |
3808 | } | |
3809 | ||
3810 | if (s && !is_spare) { | |
3811 | show_conflicts(tbl_ent->anchor->family_num, *super_list); | |
3812 | conflict++; | |
3813 | } else if (!s && !is_spare) | |
3814 | s = tbl_ent; | |
3815 | } | |
3816 | ||
3817 | if (!s) | |
3818 | s = spare; | |
3819 | if (!s) { | |
3820 | champion = NULL; | |
3821 | goto out; | |
3822 | } | |
3823 | champion = s; | |
3824 | ||
3825 | if (conflict) | |
3826 | fprintf(stderr, "Chose family %#x on '%s', " | |
3827 | "assemble conflicts to new container with '--update=uuid'\n", | |
3828 | __le32_to_cpu(s->anchor->family_num), s->disks->devname); | |
3829 | ||
3830 | /* collect all dl's onto 'champion', and update them to | |
3831 | * champion's version of the status | |
3832 | */ | |
3833 | for (s = *super_list; s; s = s->next) { | |
3834 | struct imsm_super *mpb = champion->anchor; | |
3835 | struct dl *dl = s->disks; | |
3836 | ||
3837 | if (s == champion) | |
3838 | continue; | |
3839 | ||
3840 | for (i = 0; i < mpb->num_disks; i++) { | |
3841 | struct imsm_disk *disk; | |
3842 | ||
3843 | disk = __serial_to_disk(dl->serial, mpb, &dl->index); | |
3844 | if (disk) { | |
3845 | dl->disk = *disk; | |
3846 | /* only set index on disks that are a member of | |
3847 | * a populated contianer, i.e. one with | |
3848 | * raid_devs | |
3849 | */ | |
3850 | if (is_failed(&dl->disk)) | |
3851 | dl->index = -2; | |
3852 | else if (is_spare(&dl->disk)) | |
3853 | dl->index = -1; | |
3854 | break; | |
3855 | } | |
3856 | } | |
3857 | ||
3858 | if (i >= mpb->num_disks) { | |
3859 | struct intel_disk *idisk; | |
3860 | ||
3861 | idisk = disk_list_get(dl->serial, disk_list); | |
ecf408e9 | 3862 | if (idisk && is_spare(&idisk->disk) && |
a2b97981 DW |
3863 | !is_failed(&idisk->disk) && !is_configured(&idisk->disk)) |
3864 | dl->index = -1; | |
3865 | else { | |
3866 | dl->index = -2; | |
3867 | continue; | |
3868 | } | |
3869 | } | |
3870 | ||
3871 | dl->next = champion->disks; | |
3872 | champion->disks = dl; | |
3873 | s->disks = NULL; | |
3874 | } | |
3875 | ||
3876 | /* delete 'champion' from super_list */ | |
3877 | for (del = super_list; *del; ) { | |
3878 | if (*del == champion) { | |
3879 | *del = (*del)->next; | |
3880 | break; | |
3881 | } else | |
3882 | del = &(*del)->next; | |
3883 | } | |
3884 | champion->next = NULL; | |
3885 | ||
3886 | out: | |
3887 | while (disk_list) { | |
3888 | struct intel_disk *idisk = disk_list; | |
3889 | ||
3890 | disk_list = disk_list->next; | |
3891 | free(idisk); | |
3892 | } | |
3893 | ||
3894 | return champion; | |
3895 | } | |
3896 | ||
cdddbdbc | 3897 | static int load_super_imsm_all(struct supertype *st, int fd, void **sbp, |
e1902a7b | 3898 | char *devname) |
cdddbdbc DW |
3899 | { |
3900 | struct mdinfo *sra; | |
a2b97981 DW |
3901 | struct intel_super *super_list = NULL; |
3902 | struct intel_super *super = NULL; | |
db575f3b | 3903 | int devnum = fd2devnum(fd); |
a2b97981 | 3904 | struct mdinfo *sd; |
db575f3b | 3905 | int retry; |
a2b97981 DW |
3906 | int err = 0; |
3907 | int i; | |
dab4a513 DW |
3908 | |
3909 | /* check if 'fd' an opened container */ | |
b526e52d | 3910 | sra = sysfs_read(fd, 0, GET_LEVEL|GET_VERSION|GET_DEVS|GET_STATE); |
cdddbdbc DW |
3911 | if (!sra) |
3912 | return 1; | |
3913 | ||
3914 | if (sra->array.major_version != -1 || | |
3915 | sra->array.minor_version != -2 || | |
1602d52c AW |
3916 | strcmp(sra->text_version, "imsm") != 0) { |
3917 | err = 1; | |
3918 | goto error; | |
3919 | } | |
a2b97981 DW |
3920 | /* load all mpbs */ |
3921 | for (sd = sra->devs, i = 0; sd; sd = sd->next, i++) { | |
49133e57 | 3922 | struct intel_super *s = alloc_super(); |
7a6ecd55 | 3923 | char nm[32]; |
a2b97981 | 3924 | int dfd; |
f2f5c343 | 3925 | int rv; |
a2b97981 DW |
3926 | |
3927 | err = 1; | |
3928 | if (!s) | |
3929 | goto error; | |
3930 | s->next = super_list; | |
3931 | super_list = s; | |
cdddbdbc | 3932 | |
a2b97981 | 3933 | err = 2; |
cdddbdbc | 3934 | sprintf(nm, "%d:%d", sd->disk.major, sd->disk.minor); |
e1902a7b | 3935 | dfd = dev_open(nm, O_RDWR); |
a2b97981 DW |
3936 | if (dfd < 0) |
3937 | goto error; | |
3938 | ||
d424212e | 3939 | rv = find_intel_hba_capability(dfd, s, devname); |
f2f5c343 LM |
3940 | /* no orom/efi or non-intel hba of the disk */ |
3941 | if (rv != 0) | |
3942 | goto error; | |
3943 | ||
e1902a7b | 3944 | err = load_and_parse_mpb(dfd, s, NULL, 1); |
db575f3b DW |
3945 | |
3946 | /* retry the load if we might have raced against mdmon */ | |
a2b97981 | 3947 | if (err == 3 && mdmon_running(devnum)) |
db575f3b DW |
3948 | for (retry = 0; retry < 3; retry++) { |
3949 | usleep(3000); | |
e1902a7b | 3950 | err = load_and_parse_mpb(dfd, s, NULL, 1); |
a2b97981 | 3951 | if (err != 3) |
db575f3b DW |
3952 | break; |
3953 | } | |
a2b97981 DW |
3954 | if (err) |
3955 | goto error; | |
cdddbdbc DW |
3956 | } |
3957 | ||
a2b97981 DW |
3958 | /* all mpbs enter, maybe one leaves */ |
3959 | super = imsm_thunderdome(&super_list, i); | |
3960 | if (!super) { | |
3961 | err = 1; | |
3962 | goto error; | |
cdddbdbc DW |
3963 | } |
3964 | ||
47ee5a45 DW |
3965 | if (find_missing(super) != 0) { |
3966 | free_imsm(super); | |
a2b97981 DW |
3967 | err = 2; |
3968 | goto error; | |
47ee5a45 | 3969 | } |
8e59f3d8 AK |
3970 | |
3971 | /* load migration record */ | |
3972 | err = load_imsm_migr_rec(super, NULL); | |
3973 | if (err) { | |
3974 | err = 4; | |
3975 | goto error; | |
3976 | } | |
e2f41b2c AK |
3977 | |
3978 | /* Check migration compatibility */ | |
3979 | if (check_mpb_migr_compatibility(super) != 0) { | |
3980 | fprintf(stderr, Name ": Unsupported migration detected"); | |
3981 | if (devname) | |
3982 | fprintf(stderr, " on %s\n", devname); | |
3983 | else | |
3984 | fprintf(stderr, " (IMSM).\n"); | |
3985 | ||
3986 | err = 5; | |
3987 | goto error; | |
3988 | } | |
3989 | ||
a2b97981 DW |
3990 | err = 0; |
3991 | ||
3992 | error: | |
3993 | while (super_list) { | |
3994 | struct intel_super *s = super_list; | |
3995 | ||
3996 | super_list = super_list->next; | |
3997 | free_imsm(s); | |
3998 | } | |
1602d52c | 3999 | sysfs_free(sra); |
a2b97981 DW |
4000 | |
4001 | if (err) | |
4002 | return err; | |
f7e7067b | 4003 | |
cdddbdbc | 4004 | *sbp = super; |
db575f3b | 4005 | st->container_dev = devnum; |
a2b97981 | 4006 | if (err == 0 && st->ss == NULL) { |
bf5a934a | 4007 | st->ss = &super_imsm; |
cdddbdbc DW |
4008 | st->minor_version = 0; |
4009 | st->max_devs = IMSM_MAX_DEVICES; | |
4010 | } | |
cdddbdbc DW |
4011 | return 0; |
4012 | } | |
2b959fbf N |
4013 | |
4014 | static int load_container_imsm(struct supertype *st, int fd, char *devname) | |
4015 | { | |
4016 | return load_super_imsm_all(st, fd, &st->sb, devname); | |
4017 | } | |
cdddbdbc DW |
4018 | #endif |
4019 | ||
4020 | static int load_super_imsm(struct supertype *st, int fd, char *devname) | |
4021 | { | |
4022 | struct intel_super *super; | |
4023 | int rv; | |
4024 | ||
691c6ee1 N |
4025 | if (test_partition(fd)) |
4026 | /* IMSM not allowed on partitions */ | |
4027 | return 1; | |
4028 | ||
37424f13 DW |
4029 | free_super_imsm(st); |
4030 | ||
49133e57 | 4031 | super = alloc_super(); |
cdddbdbc DW |
4032 | if (!super) { |
4033 | fprintf(stderr, | |
4034 | Name ": malloc of %zu failed.\n", | |
4035 | sizeof(*super)); | |
4036 | return 1; | |
4037 | } | |
ea2bc72b LM |
4038 | /* Load hba and capabilities if they exist. |
4039 | * But do not preclude loading metadata in case capabilities or hba are | |
4040 | * non-compliant and ignore_hw_compat is set. | |
4041 | */ | |
d424212e | 4042 | rv = find_intel_hba_capability(fd, super, devname); |
f2f5c343 | 4043 | /* no orom/efi or non-intel hba of the disk */ |
ea2bc72b | 4044 | if ((rv != 0) && (st->ignore_hw_compat == 0)) { |
f2f5c343 LM |
4045 | if (devname) |
4046 | fprintf(stderr, | |
4047 | Name ": No OROM/EFI properties for %s\n", devname); | |
4048 | free_imsm(super); | |
4049 | return 2; | |
4050 | } | |
a2b97981 | 4051 | rv = load_and_parse_mpb(fd, super, devname, 0); |
cdddbdbc DW |
4052 | |
4053 | if (rv) { | |
4054 | if (devname) | |
4055 | fprintf(stderr, | |
4056 | Name ": Failed to load all information " | |
4057 | "sections on %s\n", devname); | |
4058 | free_imsm(super); | |
4059 | return rv; | |
4060 | } | |
4061 | ||
4062 | st->sb = super; | |
4063 | if (st->ss == NULL) { | |
4064 | st->ss = &super_imsm; | |
4065 | st->minor_version = 0; | |
4066 | st->max_devs = IMSM_MAX_DEVICES; | |
4067 | } | |
8e59f3d8 AK |
4068 | |
4069 | /* load migration record */ | |
2e062e82 AK |
4070 | if (load_imsm_migr_rec(super, NULL) == 0) { |
4071 | /* Check for unsupported migration features */ | |
4072 | if (check_mpb_migr_compatibility(super) != 0) { | |
4073 | fprintf(stderr, | |
4074 | Name ": Unsupported migration detected"); | |
4075 | if (devname) | |
4076 | fprintf(stderr, " on %s\n", devname); | |
4077 | else | |
4078 | fprintf(stderr, " (IMSM).\n"); | |
4079 | return 3; | |
4080 | } | |
e2f41b2c AK |
4081 | } |
4082 | ||
cdddbdbc DW |
4083 | return 0; |
4084 | } | |
4085 | ||
ef6ffade DW |
4086 | static __u16 info_to_blocks_per_strip(mdu_array_info_t *info) |
4087 | { | |
4088 | if (info->level == 1) | |
4089 | return 128; | |
4090 | return info->chunk_size >> 9; | |
4091 | } | |
4092 | ||
ff596308 | 4093 | static __u32 info_to_num_data_stripes(mdu_array_info_t *info, int num_domains) |
ef6ffade DW |
4094 | { |
4095 | __u32 num_stripes; | |
4096 | ||
4097 | num_stripes = (info->size * 2) / info_to_blocks_per_strip(info); | |
ff596308 | 4098 | num_stripes /= num_domains; |
ef6ffade DW |
4099 | |
4100 | return num_stripes; | |
4101 | } | |
4102 | ||
fcfd9599 DW |
4103 | static __u32 info_to_blocks_per_member(mdu_array_info_t *info) |
4104 | { | |
4025c288 DW |
4105 | if (info->level == 1) |
4106 | return info->size * 2; | |
4107 | else | |
4108 | return (info->size * 2) & ~(info_to_blocks_per_strip(info) - 1); | |
fcfd9599 DW |
4109 | } |
4110 | ||
4d1313e9 DW |
4111 | static void imsm_update_version_info(struct intel_super *super) |
4112 | { | |
4113 | /* update the version and attributes */ | |
4114 | struct imsm_super *mpb = super->anchor; | |
4115 | char *version; | |
4116 | struct imsm_dev *dev; | |
4117 | struct imsm_map *map; | |
4118 | int i; | |
4119 | ||
4120 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
4121 | dev = get_imsm_dev(super, i); | |
4122 | map = get_imsm_map(dev, 0); | |
4123 | if (__le32_to_cpu(dev->size_high) > 0) | |
4124 | mpb->attributes |= MPB_ATTRIB_2TB; | |
4125 | ||
4126 | /* FIXME detect when an array spans a port multiplier */ | |
4127 | #if 0 | |
4128 | mpb->attributes |= MPB_ATTRIB_PM; | |
4129 | #endif | |
4130 | ||
4131 | if (mpb->num_raid_devs > 1 || | |
4132 | mpb->attributes != MPB_ATTRIB_CHECKSUM_VERIFY) { | |
4133 | version = MPB_VERSION_ATTRIBS; | |
4134 | switch (get_imsm_raid_level(map)) { | |
4135 | case 0: mpb->attributes |= MPB_ATTRIB_RAID0; break; | |
4136 | case 1: mpb->attributes |= MPB_ATTRIB_RAID1; break; | |
4137 | case 10: mpb->attributes |= MPB_ATTRIB_RAID10; break; | |
4138 | case 5: mpb->attributes |= MPB_ATTRIB_RAID5; break; | |
4139 | } | |
4140 | } else { | |
4141 | if (map->num_members >= 5) | |
4142 | version = MPB_VERSION_5OR6_DISK_ARRAY; | |
4143 | else if (dev->status == DEV_CLONE_N_GO) | |
4144 | version = MPB_VERSION_CNG; | |
4145 | else if (get_imsm_raid_level(map) == 5) | |
4146 | version = MPB_VERSION_RAID5; | |
4147 | else if (map->num_members >= 3) | |
4148 | version = MPB_VERSION_3OR4_DISK_ARRAY; | |
4149 | else if (get_imsm_raid_level(map) == 1) | |
4150 | version = MPB_VERSION_RAID1; | |
4151 | else | |
4152 | version = MPB_VERSION_RAID0; | |
4153 | } | |
4154 | strcpy(((char *) mpb->sig) + strlen(MPB_SIGNATURE), version); | |
4155 | } | |
4156 | } | |
4157 | ||
aa534678 DW |
4158 | static int check_name(struct intel_super *super, char *name, int quiet) |
4159 | { | |
4160 | struct imsm_super *mpb = super->anchor; | |
4161 | char *reason = NULL; | |
4162 | int i; | |
4163 | ||
4164 | if (strlen(name) > MAX_RAID_SERIAL_LEN) | |
4165 | reason = "must be 16 characters or less"; | |
4166 | ||
4167 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
4168 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
4169 | ||
4170 | if (strncmp((char *) dev->volume, name, MAX_RAID_SERIAL_LEN) == 0) { | |
4171 | reason = "already exists"; | |
4172 | break; | |
4173 | } | |
4174 | } | |
4175 | ||
4176 | if (reason && !quiet) | |
4177 | fprintf(stderr, Name ": imsm volume name %s\n", reason); | |
4178 | ||
4179 | return !reason; | |
4180 | } | |
4181 | ||
8b353278 DW |
4182 | static int init_super_imsm_volume(struct supertype *st, mdu_array_info_t *info, |
4183 | unsigned long long size, char *name, | |
4184 | char *homehost, int *uuid) | |
cdddbdbc | 4185 | { |
c2c087e6 DW |
4186 | /* We are creating a volume inside a pre-existing container. |
4187 | * so st->sb is already set. | |
4188 | */ | |
4189 | struct intel_super *super = st->sb; | |
949c47a0 | 4190 | struct imsm_super *mpb = super->anchor; |
ba2de7ba | 4191 | struct intel_dev *dv; |
c2c087e6 DW |
4192 | struct imsm_dev *dev; |
4193 | struct imsm_vol *vol; | |
4194 | struct imsm_map *map; | |
4195 | int idx = mpb->num_raid_devs; | |
4196 | int i; | |
4197 | unsigned long long array_blocks; | |
2c092cad | 4198 | size_t size_old, size_new; |
ff596308 | 4199 | __u32 num_data_stripes; |
cdddbdbc | 4200 | |
88c32bb1 | 4201 | if (super->orom && mpb->num_raid_devs >= super->orom->vpa) { |
c2c087e6 | 4202 | fprintf(stderr, Name": This imsm-container already has the " |
88c32bb1 | 4203 | "maximum of %d volumes\n", super->orom->vpa); |
c2c087e6 DW |
4204 | return 0; |
4205 | } | |
4206 | ||
2c092cad DW |
4207 | /* ensure the mpb is large enough for the new data */ |
4208 | size_old = __le32_to_cpu(mpb->mpb_size); | |
4209 | size_new = disks_to_mpb_size(info->nr_disks); | |
4210 | if (size_new > size_old) { | |
4211 | void *mpb_new; | |
4212 | size_t size_round = ROUND_UP(size_new, 512); | |
4213 | ||
4214 | if (posix_memalign(&mpb_new, 512, size_round) != 0) { | |
4215 | fprintf(stderr, Name": could not allocate new mpb\n"); | |
4216 | return 0; | |
4217 | } | |
8e59f3d8 AK |
4218 | if (posix_memalign(&super->migr_rec_buf, 512, 512) != 0) { |
4219 | fprintf(stderr, Name | |
4220 | ": %s could not allocate migr_rec buffer\n", | |
4221 | __func__); | |
4222 | free(super->buf); | |
4223 | free(super); | |
ea944c8f | 4224 | free(mpb_new); |
8e59f3d8 AK |
4225 | return 0; |
4226 | } | |
2c092cad DW |
4227 | memcpy(mpb_new, mpb, size_old); |
4228 | free(mpb); | |
4229 | mpb = mpb_new; | |
949c47a0 | 4230 | super->anchor = mpb_new; |
2c092cad DW |
4231 | mpb->mpb_size = __cpu_to_le32(size_new); |
4232 | memset(mpb_new + size_old, 0, size_round - size_old); | |
4233 | } | |
bf5a934a | 4234 | super->current_vol = idx; |
3960e579 DW |
4235 | |
4236 | /* handle 'failed_disks' by either: | |
4237 | * a) create dummy disk entries in the table if this the first | |
4238 | * volume in the array. We add them here as this is the only | |
4239 | * opportunity to add them. add_to_super_imsm_volume() | |
4240 | * handles the non-failed disks and continues incrementing | |
4241 | * mpb->num_disks. | |
4242 | * b) validate that 'failed_disks' matches the current number | |
4243 | * of missing disks if the container is populated | |
d23fe947 | 4244 | */ |
3960e579 | 4245 | if (super->current_vol == 0) { |
d23fe947 | 4246 | mpb->num_disks = 0; |
3960e579 DW |
4247 | for (i = 0; i < info->failed_disks; i++) { |
4248 | struct imsm_disk *disk; | |
4249 | ||
4250 | mpb->num_disks++; | |
4251 | disk = __get_imsm_disk(mpb, i); | |
4252 | disk->status = CONFIGURED_DISK | FAILED_DISK; | |
4253 | disk->scsi_id = __cpu_to_le32(~(__u32)0); | |
4254 | snprintf((char *) disk->serial, MAX_RAID_SERIAL_LEN, | |
4255 | "missing:%d", i); | |
4256 | } | |
4257 | find_missing(super); | |
4258 | } else { | |
4259 | int missing = 0; | |
4260 | struct dl *d; | |
4261 | ||
4262 | for (d = super->missing; d; d = d->next) | |
4263 | missing++; | |
4264 | if (info->failed_disks > missing) { | |
4265 | fprintf(stderr, Name": unable to add 'missing' disk to container\n"); | |
4266 | return 0; | |
4267 | } | |
4268 | } | |
5a038140 | 4269 | |
aa534678 DW |
4270 | if (!check_name(super, name, 0)) |
4271 | return 0; | |
ba2de7ba DW |
4272 | dv = malloc(sizeof(*dv)); |
4273 | if (!dv) { | |
4274 | fprintf(stderr, Name ": failed to allocate device list entry\n"); | |
4275 | return 0; | |
4276 | } | |
1a2487c2 | 4277 | dev = calloc(1, sizeof(*dev) + sizeof(__u32) * (info->raid_disks - 1)); |
949c47a0 | 4278 | if (!dev) { |
ba2de7ba | 4279 | free(dv); |
949c47a0 DW |
4280 | fprintf(stderr, Name": could not allocate raid device\n"); |
4281 | return 0; | |
4282 | } | |
1a2487c2 | 4283 | |
c2c087e6 | 4284 | strncpy((char *) dev->volume, name, MAX_RAID_SERIAL_LEN); |
03bcbc65 DW |
4285 | if (info->level == 1) |
4286 | array_blocks = info_to_blocks_per_member(info); | |
4287 | else | |
4288 | array_blocks = calc_array_size(info->level, info->raid_disks, | |
4289 | info->layout, info->chunk_size, | |
4290 | info->size*2); | |
979d38be DW |
4291 | /* round array size down to closest MB */ |
4292 | array_blocks = (array_blocks >> SECT_PER_MB_SHIFT) << SECT_PER_MB_SHIFT; | |
4293 | ||
c2c087e6 DW |
4294 | dev->size_low = __cpu_to_le32((__u32) array_blocks); |
4295 | dev->size_high = __cpu_to_le32((__u32) (array_blocks >> 32)); | |
1a2487c2 | 4296 | dev->status = (DEV_READ_COALESCING | DEV_WRITE_COALESCING); |
c2c087e6 DW |
4297 | vol = &dev->vol; |
4298 | vol->migr_state = 0; | |
1484e727 | 4299 | set_migr_type(dev, MIGR_INIT); |
3960e579 | 4300 | vol->dirty = !info->state; |
f8f603f1 | 4301 | vol->curr_migr_unit = 0; |
a965f303 | 4302 | map = get_imsm_map(dev, 0); |
0dcecb2e | 4303 | map->pba_of_lba0 = __cpu_to_le32(super->create_offset); |
fcfd9599 | 4304 | map->blocks_per_member = __cpu_to_le32(info_to_blocks_per_member(info)); |
ef6ffade | 4305 | map->blocks_per_strip = __cpu_to_le16(info_to_blocks_per_strip(info)); |
0556e1a2 | 4306 | map->failed_disk_num = ~0; |
3960e579 | 4307 | map->map_state = info->failed_disks ? IMSM_T_STATE_DEGRADED : IMSM_T_STATE_NORMAL; |
252d23c0 | 4308 | map->ddf = 1; |
ef6ffade DW |
4309 | |
4310 | if (info->level == 1 && info->raid_disks > 2) { | |
38950822 AW |
4311 | free(dev); |
4312 | free(dv); | |
ef6ffade DW |
4313 | fprintf(stderr, Name": imsm does not support more than 2 disks" |
4314 | "in a raid1 volume\n"); | |
4315 | return 0; | |
4316 | } | |
81062a36 DW |
4317 | |
4318 | map->raid_level = info->level; | |
4d1313e9 | 4319 | if (info->level == 10) { |
c2c087e6 | 4320 | map->raid_level = 1; |
4d1313e9 | 4321 | map->num_domains = info->raid_disks / 2; |
81062a36 DW |
4322 | } else if (info->level == 1) |
4323 | map->num_domains = info->raid_disks; | |
4324 | else | |
ff596308 | 4325 | map->num_domains = 1; |
81062a36 | 4326 | |
ff596308 DW |
4327 | num_data_stripes = info_to_num_data_stripes(info, map->num_domains); |
4328 | map->num_data_stripes = __cpu_to_le32(num_data_stripes); | |
ef6ffade | 4329 | |
c2c087e6 DW |
4330 | map->num_members = info->raid_disks; |
4331 | for (i = 0; i < map->num_members; i++) { | |
4332 | /* initialized in add_to_super */ | |
4eb26970 | 4333 | set_imsm_ord_tbl_ent(map, i, IMSM_ORD_REBUILD); |
c2c087e6 | 4334 | } |
949c47a0 | 4335 | mpb->num_raid_devs++; |
ba2de7ba DW |
4336 | |
4337 | dv->dev = dev; | |
4338 | dv->index = super->current_vol; | |
4339 | dv->next = super->devlist; | |
4340 | super->devlist = dv; | |
c2c087e6 | 4341 | |
4d1313e9 DW |
4342 | imsm_update_version_info(super); |
4343 | ||
c2c087e6 | 4344 | return 1; |
cdddbdbc DW |
4345 | } |
4346 | ||
bf5a934a DW |
4347 | static int init_super_imsm(struct supertype *st, mdu_array_info_t *info, |
4348 | unsigned long long size, char *name, | |
4349 | char *homehost, int *uuid) | |
4350 | { | |
4351 | /* This is primarily called by Create when creating a new array. | |
4352 | * We will then get add_to_super called for each component, and then | |
4353 | * write_init_super called to write it out to each device. | |
4354 | * For IMSM, Create can create on fresh devices or on a pre-existing | |
4355 | * array. | |
4356 | * To create on a pre-existing array a different method will be called. | |
4357 | * This one is just for fresh drives. | |
4358 | */ | |
4359 | struct intel_super *super; | |
4360 | struct imsm_super *mpb; | |
4361 | size_t mpb_size; | |
4d1313e9 | 4362 | char *version; |
bf5a934a | 4363 | |
bf5a934a | 4364 | if (st->sb) |
e683ca88 DW |
4365 | return init_super_imsm_volume(st, info, size, name, homehost, uuid); |
4366 | ||
4367 | if (info) | |
4368 | mpb_size = disks_to_mpb_size(info->nr_disks); | |
4369 | else | |
4370 | mpb_size = 512; | |
bf5a934a | 4371 | |
49133e57 | 4372 | super = alloc_super(); |
e683ca88 | 4373 | if (super && posix_memalign(&super->buf, 512, mpb_size) != 0) { |
bf5a934a | 4374 | free(super); |
e683ca88 DW |
4375 | super = NULL; |
4376 | } | |
4377 | if (!super) { | |
4378 | fprintf(stderr, Name | |
4379 | ": %s could not allocate superblock\n", __func__); | |
bf5a934a DW |
4380 | return 0; |
4381 | } | |
8e59f3d8 AK |
4382 | if (posix_memalign(&super->migr_rec_buf, 512, 512) != 0) { |
4383 | fprintf(stderr, Name | |
4384 | ": %s could not allocate migr_rec buffer\n", __func__); | |
4385 | free(super->buf); | |
4386 | free(super); | |
4387 | return 0; | |
4388 | } | |
e683ca88 | 4389 | memset(super->buf, 0, mpb_size); |
ef649044 | 4390 | mpb = super->buf; |
e683ca88 DW |
4391 | mpb->mpb_size = __cpu_to_le32(mpb_size); |
4392 | st->sb = super; | |
4393 | ||
4394 | if (info == NULL) { | |
4395 | /* zeroing superblock */ | |
4396 | return 0; | |
4397 | } | |
bf5a934a | 4398 | |
4d1313e9 DW |
4399 | mpb->attributes = MPB_ATTRIB_CHECKSUM_VERIFY; |
4400 | ||
4401 | version = (char *) mpb->sig; | |
4402 | strcpy(version, MPB_SIGNATURE); | |
4403 | version += strlen(MPB_SIGNATURE); | |
4404 | strcpy(version, MPB_VERSION_RAID0); | |
bf5a934a | 4405 | |
bf5a934a DW |
4406 | return 1; |
4407 | } | |
4408 | ||
0e600426 | 4409 | #ifndef MDASSEMBLE |
f20c3968 | 4410 | static int add_to_super_imsm_volume(struct supertype *st, mdu_disk_info_t *dk, |
bf5a934a DW |
4411 | int fd, char *devname) |
4412 | { | |
4413 | struct intel_super *super = st->sb; | |
d23fe947 | 4414 | struct imsm_super *mpb = super->anchor; |
3960e579 | 4415 | struct imsm_disk *_disk; |
bf5a934a DW |
4416 | struct imsm_dev *dev; |
4417 | struct imsm_map *map; | |
3960e579 | 4418 | struct dl *dl, *df; |
4eb26970 | 4419 | int slot; |
bf5a934a | 4420 | |
949c47a0 | 4421 | dev = get_imsm_dev(super, super->current_vol); |
a965f303 | 4422 | map = get_imsm_map(dev, 0); |
bf5a934a | 4423 | |
208933a7 N |
4424 | if (! (dk->state & (1<<MD_DISK_SYNC))) { |
4425 | fprintf(stderr, Name ": %s: Cannot add spare devices to IMSM volume\n", | |
4426 | devname); | |
4427 | return 1; | |
4428 | } | |
4429 | ||
efb30e7f DW |
4430 | if (fd == -1) { |
4431 | /* we're doing autolayout so grab the pre-marked (in | |
4432 | * validate_geometry) raid_disk | |
4433 | */ | |
4434 | for (dl = super->disks; dl; dl = dl->next) | |
4435 | if (dl->raiddisk == dk->raid_disk) | |
4436 | break; | |
4437 | } else { | |
4438 | for (dl = super->disks; dl ; dl = dl->next) | |
4439 | if (dl->major == dk->major && | |
4440 | dl->minor == dk->minor) | |
4441 | break; | |
4442 | } | |
d23fe947 | 4443 | |
208933a7 N |
4444 | if (!dl) { |
4445 | fprintf(stderr, Name ": %s is not a member of the same container\n", devname); | |
f20c3968 | 4446 | return 1; |
208933a7 | 4447 | } |
bf5a934a | 4448 | |
d23fe947 DW |
4449 | /* add a pristine spare to the metadata */ |
4450 | if (dl->index < 0) { | |
4451 | dl->index = super->anchor->num_disks; | |
4452 | super->anchor->num_disks++; | |
4453 | } | |
4eb26970 DW |
4454 | /* Check the device has not already been added */ |
4455 | slot = get_imsm_disk_slot(map, dl->index); | |
4456 | if (slot >= 0 && | |
98130f40 | 4457 | (get_imsm_ord_tbl_ent(dev, slot, -1) & IMSM_ORD_REBUILD) == 0) { |
4eb26970 DW |
4458 | fprintf(stderr, Name ": %s has been included in this array twice\n", |
4459 | devname); | |
4460 | return 1; | |
4461 | } | |
656b6b5a | 4462 | set_imsm_ord_tbl_ent(map, dk->raid_disk, dl->index); |
ee5aad5a | 4463 | dl->disk.status = CONFIGURED_DISK; |
d23fe947 | 4464 | |
3960e579 DW |
4465 | /* update size of 'missing' disks to be at least as large as the |
4466 | * largest acitve member (we only have dummy missing disks when | |
4467 | * creating the first volume) | |
4468 | */ | |
4469 | if (super->current_vol == 0) { | |
4470 | for (df = super->missing; df; df = df->next) { | |
4471 | if (dl->disk.total_blocks > df->disk.total_blocks) | |
4472 | df->disk.total_blocks = dl->disk.total_blocks; | |
4473 | _disk = __get_imsm_disk(mpb, df->index); | |
4474 | *_disk = df->disk; | |
4475 | } | |
4476 | } | |
4477 | ||
4478 | /* refresh unset/failed slots to point to valid 'missing' entries */ | |
4479 | for (df = super->missing; df; df = df->next) | |
4480 | for (slot = 0; slot < mpb->num_disks; slot++) { | |
4481 | __u32 ord = get_imsm_ord_tbl_ent(dev, slot, -1); | |
4482 | ||
4483 | if ((ord & IMSM_ORD_REBUILD) == 0) | |
4484 | continue; | |
4485 | set_imsm_ord_tbl_ent(map, slot, df->index | IMSM_ORD_REBUILD); | |
1ace8403 AK |
4486 | if (is_gen_migration(dev)) { |
4487 | struct imsm_map *map2 = get_imsm_map(dev, 1); | |
4488 | if (slot < map2->num_members) { | |
4489 | __u32 ord2 = get_imsm_ord_tbl_ent(dev, | |
4490 | slot, | |
4491 | 1); | |
4492 | if ((unsigned)df->index == | |
4493 | ord_to_idx(ord2)) | |
4494 | set_imsm_ord_tbl_ent(map2, | |
4495 | slot, | |
4496 | df->index | | |
4497 | IMSM_ORD_REBUILD); | |
4498 | } | |
4499 | } | |
3960e579 DW |
4500 | dprintf("set slot:%d to missing disk:%d\n", slot, df->index); |
4501 | break; | |
4502 | } | |
4503 | ||
d23fe947 DW |
4504 | /* if we are creating the first raid device update the family number */ |
4505 | if (super->current_vol == 0) { | |
4506 | __u32 sum; | |
4507 | struct imsm_dev *_dev = __get_imsm_dev(mpb, 0); | |
d23fe947 | 4508 | |
3960e579 | 4509 | _disk = __get_imsm_disk(mpb, dl->index); |
791b666a AW |
4510 | if (!_dev || !_disk) { |
4511 | fprintf(stderr, Name ": BUG mpb setup error\n"); | |
4512 | return 1; | |
4513 | } | |
d23fe947 DW |
4514 | *_dev = *dev; |
4515 | *_disk = dl->disk; | |
148acb7b DW |
4516 | sum = random32(); |
4517 | sum += __gen_imsm_checksum(mpb); | |
d23fe947 | 4518 | mpb->family_num = __cpu_to_le32(sum); |
148acb7b | 4519 | mpb->orig_family_num = mpb->family_num; |
d23fe947 | 4520 | } |
ca0748fa | 4521 | super->current_disk = dl; |
f20c3968 | 4522 | return 0; |
bf5a934a DW |
4523 | } |
4524 | ||
a8619d23 AK |
4525 | /* mark_spare() |
4526 | * Function marks disk as spare and restores disk serial | |
4527 | * in case it was previously marked as failed by takeover operation | |
4528 | * reruns: | |
4529 | * -1 : critical error | |
4530 | * 0 : disk is marked as spare but serial is not set | |
4531 | * 1 : success | |
4532 | */ | |
4533 | int mark_spare(struct dl *disk) | |
4534 | { | |
4535 | __u8 serial[MAX_RAID_SERIAL_LEN]; | |
4536 | int ret_val = -1; | |
4537 | ||
4538 | if (!disk) | |
4539 | return ret_val; | |
4540 | ||
4541 | ret_val = 0; | |
4542 | if (!imsm_read_serial(disk->fd, NULL, serial)) { | |
4543 | /* Restore disk serial number, because takeover marks disk | |
4544 | * as failed and adds to serial ':0' before it becomes | |
4545 | * a spare disk. | |
4546 | */ | |
4547 | serialcpy(disk->serial, serial); | |
4548 | serialcpy(disk->disk.serial, serial); | |
4549 | ret_val = 1; | |
4550 | } | |
4551 | disk->disk.status = SPARE_DISK; | |
4552 | disk->index = -1; | |
4553 | ||
4554 | return ret_val; | |
4555 | } | |
88654014 | 4556 | |
f20c3968 | 4557 | static int add_to_super_imsm(struct supertype *st, mdu_disk_info_t *dk, |
88654014 | 4558 | int fd, char *devname) |
cdddbdbc | 4559 | { |
c2c087e6 | 4560 | struct intel_super *super = st->sb; |
c2c087e6 DW |
4561 | struct dl *dd; |
4562 | unsigned long long size; | |
f2f27e63 | 4563 | __u32 id; |
c2c087e6 DW |
4564 | int rv; |
4565 | struct stat stb; | |
4566 | ||
88654014 LM |
4567 | /* If we are on an RAID enabled platform check that the disk is |
4568 | * attached to the raid controller. | |
4569 | * We do not need to test disks attachment for container based additions, | |
4570 | * they shall be already tested when container was created/assembled. | |
88c32bb1 | 4571 | */ |
d424212e | 4572 | rv = find_intel_hba_capability(fd, super, devname); |
f2f5c343 | 4573 | /* no orom/efi or non-intel hba of the disk */ |
f0f5a016 LM |
4574 | if (rv != 0) { |
4575 | dprintf("capability: %p fd: %d ret: %d\n", | |
4576 | super->orom, fd, rv); | |
4577 | return 1; | |
88c32bb1 DW |
4578 | } |
4579 | ||
f20c3968 DW |
4580 | if (super->current_vol >= 0) |
4581 | return add_to_super_imsm_volume(st, dk, fd, devname); | |
bf5a934a | 4582 | |
c2c087e6 DW |
4583 | fstat(fd, &stb); |
4584 | dd = malloc(sizeof(*dd)); | |
b9f594fe | 4585 | if (!dd) { |
c2c087e6 DW |
4586 | fprintf(stderr, |
4587 | Name ": malloc failed %s:%d.\n", __func__, __LINE__); | |
f20c3968 | 4588 | return 1; |
c2c087e6 DW |
4589 | } |
4590 | memset(dd, 0, sizeof(*dd)); | |
4591 | dd->major = major(stb.st_rdev); | |
4592 | dd->minor = minor(stb.st_rdev); | |
c2c087e6 | 4593 | dd->devname = devname ? strdup(devname) : NULL; |
c2c087e6 | 4594 | dd->fd = fd; |
689c9bf3 | 4595 | dd->e = NULL; |
1a64be56 | 4596 | dd->action = DISK_ADD; |
c2c087e6 | 4597 | rv = imsm_read_serial(fd, devname, dd->serial); |
32ba9157 | 4598 | if (rv) { |
c2c087e6 | 4599 | fprintf(stderr, |
0030e8d6 | 4600 | Name ": failed to retrieve scsi serial, aborting\n"); |
949c47a0 | 4601 | free(dd); |
0030e8d6 | 4602 | abort(); |
c2c087e6 DW |
4603 | } |
4604 | ||
c2c087e6 DW |
4605 | get_dev_size(fd, NULL, &size); |
4606 | size /= 512; | |
1f24f035 | 4607 | serialcpy(dd->disk.serial, dd->serial); |
b9f594fe | 4608 | dd->disk.total_blocks = __cpu_to_le32(size); |
a8619d23 | 4609 | mark_spare(dd); |
c2c087e6 | 4610 | if (sysfs_disk_to_scsi_id(fd, &id) == 0) |
b9f594fe | 4611 | dd->disk.scsi_id = __cpu_to_le32(id); |
c2c087e6 | 4612 | else |
b9f594fe | 4613 | dd->disk.scsi_id = __cpu_to_le32(0); |
43dad3d6 DW |
4614 | |
4615 | if (st->update_tail) { | |
1a64be56 LM |
4616 | dd->next = super->disk_mgmt_list; |
4617 | super->disk_mgmt_list = dd; | |
43dad3d6 DW |
4618 | } else { |
4619 | dd->next = super->disks; | |
4620 | super->disks = dd; | |
ceaf0ee1 | 4621 | super->updates_pending++; |
43dad3d6 | 4622 | } |
f20c3968 DW |
4623 | |
4624 | return 0; | |
cdddbdbc DW |
4625 | } |
4626 | ||
1a64be56 LM |
4627 | |
4628 | static int remove_from_super_imsm(struct supertype *st, mdu_disk_info_t *dk) | |
4629 | { | |
4630 | struct intel_super *super = st->sb; | |
4631 | struct dl *dd; | |
4632 | ||
4633 | /* remove from super works only in mdmon - for communication | |
4634 | * manager - monitor. Check if communication memory buffer | |
4635 | * is prepared. | |
4636 | */ | |
4637 | if (!st->update_tail) { | |
4638 | fprintf(stderr, | |
4639 | Name ": %s shall be used in mdmon context only" | |
4640 | "(line %d).\n", __func__, __LINE__); | |
4641 | return 1; | |
4642 | } | |
4643 | dd = malloc(sizeof(*dd)); | |
4644 | if (!dd) { | |
4645 | fprintf(stderr, | |
4646 | Name ": malloc failed %s:%d.\n", __func__, __LINE__); | |
4647 | return 1; | |
4648 | } | |
4649 | memset(dd, 0, sizeof(*dd)); | |
4650 | dd->major = dk->major; | |
4651 | dd->minor = dk->minor; | |
1a64be56 | 4652 | dd->fd = -1; |
a8619d23 | 4653 | mark_spare(dd); |
1a64be56 LM |
4654 | dd->action = DISK_REMOVE; |
4655 | ||
4656 | dd->next = super->disk_mgmt_list; | |
4657 | super->disk_mgmt_list = dd; | |
4658 | ||
4659 | ||
4660 | return 0; | |
4661 | } | |
4662 | ||
f796af5d DW |
4663 | static int store_imsm_mpb(int fd, struct imsm_super *mpb); |
4664 | ||
4665 | static union { | |
4666 | char buf[512]; | |
4667 | struct imsm_super anchor; | |
4668 | } spare_record __attribute__ ((aligned(512))); | |
c2c087e6 | 4669 | |
d23fe947 DW |
4670 | /* spare records have their own family number and do not have any defined raid |
4671 | * devices | |
4672 | */ | |
4673 | static int write_super_imsm_spares(struct intel_super *super, int doclose) | |
4674 | { | |
d23fe947 | 4675 | struct imsm_super *mpb = super->anchor; |
f796af5d | 4676 | struct imsm_super *spare = &spare_record.anchor; |
d23fe947 DW |
4677 | __u32 sum; |
4678 | struct dl *d; | |
4679 | ||
f796af5d DW |
4680 | spare->mpb_size = __cpu_to_le32(sizeof(struct imsm_super)), |
4681 | spare->generation_num = __cpu_to_le32(1UL), | |
4682 | spare->attributes = MPB_ATTRIB_CHECKSUM_VERIFY; | |
4683 | spare->num_disks = 1, | |
4684 | spare->num_raid_devs = 0, | |
4685 | spare->cache_size = mpb->cache_size, | |
4686 | spare->pwr_cycle_count = __cpu_to_le32(1), | |
4687 | ||
4688 | snprintf((char *) spare->sig, MAX_SIGNATURE_LENGTH, | |
4689 | MPB_SIGNATURE MPB_VERSION_RAID0); | |
d23fe947 DW |
4690 | |
4691 | for (d = super->disks; d; d = d->next) { | |
8796fdc4 | 4692 | if (d->index != -1) |
d23fe947 DW |
4693 | continue; |
4694 | ||
f796af5d DW |
4695 | spare->disk[0] = d->disk; |
4696 | sum = __gen_imsm_checksum(spare); | |
4697 | spare->family_num = __cpu_to_le32(sum); | |
4698 | spare->orig_family_num = 0; | |
4699 | sum = __gen_imsm_checksum(spare); | |
4700 | spare->check_sum = __cpu_to_le32(sum); | |
d23fe947 | 4701 | |
f796af5d | 4702 | if (store_imsm_mpb(d->fd, spare)) { |
d23fe947 DW |
4703 | fprintf(stderr, "%s: failed for device %d:%d %s\n", |
4704 | __func__, d->major, d->minor, strerror(errno)); | |
e74255d9 | 4705 | return 1; |
d23fe947 DW |
4706 | } |
4707 | if (doclose) { | |
4708 | close(d->fd); | |
4709 | d->fd = -1; | |
4710 | } | |
4711 | } | |
4712 | ||
e74255d9 | 4713 | return 0; |
d23fe947 DW |
4714 | } |
4715 | ||
36988a3d | 4716 | static int write_super_imsm(struct supertype *st, int doclose) |
cdddbdbc | 4717 | { |
36988a3d | 4718 | struct intel_super *super = st->sb; |
949c47a0 | 4719 | struct imsm_super *mpb = super->anchor; |
c2c087e6 DW |
4720 | struct dl *d; |
4721 | __u32 generation; | |
4722 | __u32 sum; | |
d23fe947 | 4723 | int spares = 0; |
949c47a0 | 4724 | int i; |
a48ac0a8 | 4725 | __u32 mpb_size = sizeof(struct imsm_super) - sizeof(struct imsm_disk); |
36988a3d | 4726 | int num_disks = 0; |
146c6260 | 4727 | int clear_migration_record = 1; |
cdddbdbc | 4728 | |
c2c087e6 DW |
4729 | /* 'generation' is incremented everytime the metadata is written */ |
4730 | generation = __le32_to_cpu(mpb->generation_num); | |
4731 | generation++; | |
4732 | mpb->generation_num = __cpu_to_le32(generation); | |
4733 | ||
148acb7b DW |
4734 | /* fix up cases where previous mdadm releases failed to set |
4735 | * orig_family_num | |
4736 | */ | |
4737 | if (mpb->orig_family_num == 0) | |
4738 | mpb->orig_family_num = mpb->family_num; | |
4739 | ||
d23fe947 | 4740 | for (d = super->disks; d; d = d->next) { |
8796fdc4 | 4741 | if (d->index == -1) |
d23fe947 | 4742 | spares++; |
36988a3d | 4743 | else { |
d23fe947 | 4744 | mpb->disk[d->index] = d->disk; |
36988a3d AK |
4745 | num_disks++; |
4746 | } | |
d23fe947 | 4747 | } |
36988a3d | 4748 | for (d = super->missing; d; d = d->next) { |
47ee5a45 | 4749 | mpb->disk[d->index] = d->disk; |
36988a3d AK |
4750 | num_disks++; |
4751 | } | |
4752 | mpb->num_disks = num_disks; | |
4753 | mpb_size += sizeof(struct imsm_disk) * mpb->num_disks; | |
b9f594fe | 4754 | |
949c47a0 DW |
4755 | for (i = 0; i < mpb->num_raid_devs; i++) { |
4756 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
36988a3d AK |
4757 | struct imsm_dev *dev2 = get_imsm_dev(super, i); |
4758 | if (dev && dev2) { | |
4759 | imsm_copy_dev(dev, dev2); | |
4760 | mpb_size += sizeof_imsm_dev(dev, 0); | |
4761 | } | |
146c6260 AK |
4762 | if (is_gen_migration(dev2)) |
4763 | clear_migration_record = 0; | |
949c47a0 | 4764 | } |
a48ac0a8 DW |
4765 | mpb_size += __le32_to_cpu(mpb->bbm_log_size); |
4766 | mpb->mpb_size = __cpu_to_le32(mpb_size); | |
949c47a0 | 4767 | |
c2c087e6 | 4768 | /* recalculate checksum */ |
949c47a0 | 4769 | sum = __gen_imsm_checksum(mpb); |
c2c087e6 DW |
4770 | mpb->check_sum = __cpu_to_le32(sum); |
4771 | ||
146c6260 AK |
4772 | if (clear_migration_record) |
4773 | memset(super->migr_rec_buf, 0, 512); | |
4774 | ||
d23fe947 | 4775 | /* write the mpb for disks that compose raid devices */ |
c2c087e6 | 4776 | for (d = super->disks; d ; d = d->next) { |
86c54047 | 4777 | if (d->index < 0 || is_failed(&d->disk)) |
d23fe947 | 4778 | continue; |
f796af5d | 4779 | if (store_imsm_mpb(d->fd, mpb)) |
c2c087e6 DW |
4780 | fprintf(stderr, "%s: failed for device %d:%d %s\n", |
4781 | __func__, d->major, d->minor, strerror(errno)); | |
146c6260 AK |
4782 | if (clear_migration_record) { |
4783 | unsigned long long dsize; | |
4784 | ||
4785 | get_dev_size(d->fd, NULL, &dsize); | |
4786 | if (lseek64(d->fd, dsize - 512, SEEK_SET) >= 0) { | |
9e2d750d N |
4787 | if (write(d->fd, super->migr_rec_buf, 512) != 512) |
4788 | perror("Write migr_rec failed"); | |
146c6260 AK |
4789 | } |
4790 | } | |
c2c087e6 DW |
4791 | if (doclose) { |
4792 | close(d->fd); | |
4793 | d->fd = -1; | |
4794 | } | |
4795 | } | |
4796 | ||
d23fe947 DW |
4797 | if (spares) |
4798 | return write_super_imsm_spares(super, doclose); | |
4799 | ||
e74255d9 | 4800 | return 0; |
c2c087e6 DW |
4801 | } |
4802 | ||
0e600426 | 4803 | |
9b1fb677 | 4804 | static int create_array(struct supertype *st, int dev_idx) |
43dad3d6 DW |
4805 | { |
4806 | size_t len; | |
4807 | struct imsm_update_create_array *u; | |
4808 | struct intel_super *super = st->sb; | |
9b1fb677 | 4809 | struct imsm_dev *dev = get_imsm_dev(super, dev_idx); |
54c2c1ea DW |
4810 | struct imsm_map *map = get_imsm_map(dev, 0); |
4811 | struct disk_info *inf; | |
4812 | struct imsm_disk *disk; | |
4813 | int i; | |
43dad3d6 | 4814 | |
54c2c1ea DW |
4815 | len = sizeof(*u) - sizeof(*dev) + sizeof_imsm_dev(dev, 0) + |
4816 | sizeof(*inf) * map->num_members; | |
43dad3d6 DW |
4817 | u = malloc(len); |
4818 | if (!u) { | |
4819 | fprintf(stderr, "%s: failed to allocate update buffer\n", | |
4820 | __func__); | |
4821 | return 1; | |
4822 | } | |
4823 | ||
4824 | u->type = update_create_array; | |
9b1fb677 | 4825 | u->dev_idx = dev_idx; |
43dad3d6 | 4826 | imsm_copy_dev(&u->dev, dev); |
54c2c1ea DW |
4827 | inf = get_disk_info(u); |
4828 | for (i = 0; i < map->num_members; i++) { | |
98130f40 | 4829 | int idx = get_imsm_disk_idx(dev, i, -1); |
9b1fb677 | 4830 | |
54c2c1ea DW |
4831 | disk = get_imsm_disk(super, idx); |
4832 | serialcpy(inf[i].serial, disk->serial); | |
4833 | } | |
43dad3d6 DW |
4834 | append_metadata_update(st, u, len); |
4835 | ||
4836 | return 0; | |
4837 | } | |
4838 | ||
1a64be56 | 4839 | static int mgmt_disk(struct supertype *st) |
43dad3d6 DW |
4840 | { |
4841 | struct intel_super *super = st->sb; | |
4842 | size_t len; | |
1a64be56 | 4843 | struct imsm_update_add_remove_disk *u; |
43dad3d6 | 4844 | |
1a64be56 | 4845 | if (!super->disk_mgmt_list) |
43dad3d6 DW |
4846 | return 0; |
4847 | ||
4848 | len = sizeof(*u); | |
4849 | u = malloc(len); | |
4850 | if (!u) { | |
4851 | fprintf(stderr, "%s: failed to allocate update buffer\n", | |
4852 | __func__); | |
4853 | return 1; | |
4854 | } | |
4855 | ||
1a64be56 | 4856 | u->type = update_add_remove_disk; |
43dad3d6 DW |
4857 | append_metadata_update(st, u, len); |
4858 | ||
4859 | return 0; | |
4860 | } | |
4861 | ||
c2c087e6 DW |
4862 | static int write_init_super_imsm(struct supertype *st) |
4863 | { | |
9b1fb677 DW |
4864 | struct intel_super *super = st->sb; |
4865 | int current_vol = super->current_vol; | |
4866 | ||
4867 | /* we are done with current_vol reset it to point st at the container */ | |
4868 | super->current_vol = -1; | |
4869 | ||
8273f55e | 4870 | if (st->update_tail) { |
43dad3d6 DW |
4871 | /* queue the recently created array / added disk |
4872 | * as a metadata update */ | |
43dad3d6 | 4873 | int rv; |
8273f55e | 4874 | |
43dad3d6 | 4875 | /* determine if we are creating a volume or adding a disk */ |
9b1fb677 | 4876 | if (current_vol < 0) { |
1a64be56 LM |
4877 | /* in the mgmt (add/remove) disk case we are running |
4878 | * in mdmon context, so don't close fd's | |
43dad3d6 | 4879 | */ |
1a64be56 | 4880 | return mgmt_disk(st); |
43dad3d6 | 4881 | } else |
9b1fb677 | 4882 | rv = create_array(st, current_vol); |
8273f55e | 4883 | |
43dad3d6 | 4884 | return rv; |
d682f344 N |
4885 | } else { |
4886 | struct dl *d; | |
4887 | for (d = super->disks; d; d = d->next) | |
4888 | Kill(d->devname, NULL, 0, 1, 1); | |
36988a3d | 4889 | return write_super_imsm(st, 1); |
d682f344 | 4890 | } |
cdddbdbc | 4891 | } |
0e600426 | 4892 | #endif |
cdddbdbc | 4893 | |
e683ca88 | 4894 | static int store_super_imsm(struct supertype *st, int fd) |
cdddbdbc | 4895 | { |
e683ca88 DW |
4896 | struct intel_super *super = st->sb; |
4897 | struct imsm_super *mpb = super ? super->anchor : NULL; | |
551c80c1 | 4898 | |
e683ca88 | 4899 | if (!mpb) |
ad97895e DW |
4900 | return 1; |
4901 | ||
1799c9e8 | 4902 | #ifndef MDASSEMBLE |
e683ca88 | 4903 | return store_imsm_mpb(fd, mpb); |
1799c9e8 N |
4904 | #else |
4905 | return 1; | |
4906 | #endif | |
cdddbdbc DW |
4907 | } |
4908 | ||
0e600426 N |
4909 | static int imsm_bbm_log_size(struct imsm_super *mpb) |
4910 | { | |
4911 | return __le32_to_cpu(mpb->bbm_log_size); | |
4912 | } | |
4913 | ||
4914 | #ifndef MDASSEMBLE | |
cdddbdbc DW |
4915 | static int validate_geometry_imsm_container(struct supertype *st, int level, |
4916 | int layout, int raiddisks, int chunk, | |
c2c087e6 | 4917 | unsigned long long size, char *dev, |
2c514b71 NB |
4918 | unsigned long long *freesize, |
4919 | int verbose) | |
cdddbdbc | 4920 | { |
c2c087e6 DW |
4921 | int fd; |
4922 | unsigned long long ldsize; | |
f2f5c343 LM |
4923 | struct intel_super *super=NULL; |
4924 | int rv = 0; | |
cdddbdbc | 4925 | |
c2c087e6 DW |
4926 | if (level != LEVEL_CONTAINER) |
4927 | return 0; | |
4928 | if (!dev) | |
4929 | return 1; | |
4930 | ||
4931 | fd = open(dev, O_RDONLY|O_EXCL, 0); | |
4932 | if (fd < 0) { | |
2c514b71 NB |
4933 | if (verbose) |
4934 | fprintf(stderr, Name ": imsm: Cannot open %s: %s\n", | |
4935 | dev, strerror(errno)); | |
c2c087e6 DW |
4936 | return 0; |
4937 | } | |
4938 | if (!get_dev_size(fd, dev, &ldsize)) { | |
4939 | close(fd); | |
4940 | return 0; | |
4941 | } | |
f2f5c343 LM |
4942 | |
4943 | /* capabilities retrieve could be possible | |
4944 | * note that there is no fd for the disks in array. | |
4945 | */ | |
4946 | super = alloc_super(); | |
4947 | if (!super) { | |
4948 | fprintf(stderr, | |
4949 | Name ": malloc of %zu failed.\n", | |
4950 | sizeof(*super)); | |
4951 | close(fd); | |
4952 | return 0; | |
4953 | } | |
4954 | ||
d424212e | 4955 | rv = find_intel_hba_capability(fd, super, verbose ? dev : NULL); |
f2f5c343 LM |
4956 | if (rv != 0) { |
4957 | #if DEBUG | |
4958 | char str[256]; | |
4959 | fd2devname(fd, str); | |
4960 | dprintf("validate_geometry_imsm_container: fd: %d %s orom: %p rv: %d raiddisk: %d\n", | |
4961 | fd, str, super->orom, rv, raiddisks); | |
4962 | #endif | |
4963 | /* no orom/efi or non-intel hba of the disk */ | |
4964 | close(fd); | |
4965 | free_imsm(super); | |
4966 | return 0; | |
4967 | } | |
c2c087e6 | 4968 | close(fd); |
f2f5c343 LM |
4969 | if (super->orom && raiddisks > super->orom->tds) { |
4970 | if (verbose) | |
4971 | fprintf(stderr, Name ": %d exceeds maximum number of" | |
4972 | " platform supported disks: %d\n", | |
4973 | raiddisks, super->orom->tds); | |
4974 | ||
4975 | free_imsm(super); | |
4976 | return 0; | |
4977 | } | |
c2c087e6 DW |
4978 | |
4979 | *freesize = avail_size_imsm(st, ldsize >> 9); | |
f2f5c343 | 4980 | free_imsm(super); |
c2c087e6 DW |
4981 | |
4982 | return 1; | |
cdddbdbc DW |
4983 | } |
4984 | ||
0dcecb2e DW |
4985 | static unsigned long long find_size(struct extent *e, int *idx, int num_extents) |
4986 | { | |
4987 | const unsigned long long base_start = e[*idx].start; | |
4988 | unsigned long long end = base_start + e[*idx].size; | |
4989 | int i; | |
4990 | ||
4991 | if (base_start == end) | |
4992 | return 0; | |
4993 | ||
4994 | *idx = *idx + 1; | |
4995 | for (i = *idx; i < num_extents; i++) { | |
4996 | /* extend overlapping extents */ | |
4997 | if (e[i].start >= base_start && | |
4998 | e[i].start <= end) { | |
4999 | if (e[i].size == 0) | |
5000 | return 0; | |
5001 | if (e[i].start + e[i].size > end) | |
5002 | end = e[i].start + e[i].size; | |
5003 | } else if (e[i].start > end) { | |
5004 | *idx = i; | |
5005 | break; | |
5006 | } | |
5007 | } | |
5008 | ||
5009 | return end - base_start; | |
5010 | } | |
5011 | ||
5012 | static unsigned long long merge_extents(struct intel_super *super, int sum_extents) | |
5013 | { | |
5014 | /* build a composite disk with all known extents and generate a new | |
5015 | * 'maxsize' given the "all disks in an array must share a common start | |
5016 | * offset" constraint | |
5017 | */ | |
5018 | struct extent *e = calloc(sum_extents, sizeof(*e)); | |
5019 | struct dl *dl; | |
5020 | int i, j; | |
5021 | int start_extent; | |
5022 | unsigned long long pos; | |
b9d77223 | 5023 | unsigned long long start = 0; |
0dcecb2e DW |
5024 | unsigned long long maxsize; |
5025 | unsigned long reserve; | |
5026 | ||
5027 | if (!e) | |
a7dd165b | 5028 | return 0; |
0dcecb2e DW |
5029 | |
5030 | /* coalesce and sort all extents. also, check to see if we need to | |
5031 | * reserve space between member arrays | |
5032 | */ | |
5033 | j = 0; | |
5034 | for (dl = super->disks; dl; dl = dl->next) { | |
5035 | if (!dl->e) | |
5036 | continue; | |
5037 | for (i = 0; i < dl->extent_cnt; i++) | |
5038 | e[j++] = dl->e[i]; | |
5039 | } | |
5040 | qsort(e, sum_extents, sizeof(*e), cmp_extent); | |
5041 | ||
5042 | /* merge extents */ | |
5043 | i = 0; | |
5044 | j = 0; | |
5045 | while (i < sum_extents) { | |
5046 | e[j].start = e[i].start; | |
5047 | e[j].size = find_size(e, &i, sum_extents); | |
5048 | j++; | |
5049 | if (e[j-1].size == 0) | |
5050 | break; | |
5051 | } | |
5052 | ||
5053 | pos = 0; | |
5054 | maxsize = 0; | |
5055 | start_extent = 0; | |
5056 | i = 0; | |
5057 | do { | |
5058 | unsigned long long esize; | |
5059 | ||
5060 | esize = e[i].start - pos; | |
5061 | if (esize >= maxsize) { | |
5062 | maxsize = esize; | |
5063 | start = pos; | |
5064 | start_extent = i; | |
5065 | } | |
5066 | pos = e[i].start + e[i].size; | |
5067 | i++; | |
5068 | } while (e[i-1].size); | |
5069 | free(e); | |
5070 | ||
a7dd165b DW |
5071 | if (maxsize == 0) |
5072 | return 0; | |
5073 | ||
5074 | /* FIXME assumes volume at offset 0 is the first volume in a | |
5075 | * container | |
5076 | */ | |
0dcecb2e DW |
5077 | if (start_extent > 0) |
5078 | reserve = IMSM_RESERVED_SECTORS; /* gap between raid regions */ | |
5079 | else | |
5080 | reserve = 0; | |
5081 | ||
5082 | if (maxsize < reserve) | |
a7dd165b | 5083 | return 0; |
0dcecb2e DW |
5084 | |
5085 | super->create_offset = ~((__u32) 0); | |
5086 | if (start + reserve > super->create_offset) | |
a7dd165b | 5087 | return 0; /* start overflows create_offset */ |
0dcecb2e DW |
5088 | super->create_offset = start + reserve; |
5089 | ||
5090 | return maxsize - reserve; | |
5091 | } | |
5092 | ||
88c32bb1 DW |
5093 | static int is_raid_level_supported(const struct imsm_orom *orom, int level, int raiddisks) |
5094 | { | |
5095 | if (level < 0 || level == 6 || level == 4) | |
5096 | return 0; | |
5097 | ||
5098 | /* if we have an orom prevent invalid raid levels */ | |
5099 | if (orom) | |
5100 | switch (level) { | |
5101 | case 0: return imsm_orom_has_raid0(orom); | |
5102 | case 1: | |
5103 | if (raiddisks > 2) | |
5104 | return imsm_orom_has_raid1e(orom); | |
1c556e92 DW |
5105 | return imsm_orom_has_raid1(orom) && raiddisks == 2; |
5106 | case 10: return imsm_orom_has_raid10(orom) && raiddisks == 4; | |
5107 | case 5: return imsm_orom_has_raid5(orom) && raiddisks > 2; | |
88c32bb1 DW |
5108 | } |
5109 | else | |
5110 | return 1; /* not on an Intel RAID platform so anything goes */ | |
5111 | ||
5112 | return 0; | |
5113 | } | |
5114 | ||
cd9d1ac7 DW |
5115 | static int imsm_default_chunk(const struct imsm_orom *orom) |
5116 | { | |
5117 | /* up to 512 if the plaform supports it, otherwise the platform max. | |
5118 | * 128 if no platform detected | |
5119 | */ | |
5120 | int fs = max(7, orom ? fls(orom->sss) : 0); | |
5121 | ||
5122 | return min(512, (1 << fs)); | |
5123 | } | |
73408129 | 5124 | |
35f81cbb | 5125 | #define pr_vrb(fmt, arg...) (void) (verbose && fprintf(stderr, Name fmt, ##arg)) |
6592ce37 DW |
5126 | static int |
5127 | validate_geometry_imsm_orom(struct intel_super *super, int level, int layout, | |
c21e737b | 5128 | int raiddisks, int *chunk, int verbose) |
6592ce37 | 5129 | { |
660260d0 DW |
5130 | /* check/set platform and metadata limits/defaults */ |
5131 | if (super->orom && raiddisks > super->orom->dpa) { | |
5132 | pr_vrb(": platform supports a maximum of %d disks per array\n", | |
5133 | super->orom->dpa); | |
73408129 LM |
5134 | return 0; |
5135 | } | |
5136 | ||
5137 | /* capabilities of OROM tested - copied from validate_geometry_imsm_volume */ | |
660260d0 | 5138 | if (!is_raid_level_supported(super->orom, level, raiddisks)) { |
6592ce37 DW |
5139 | pr_vrb(": platform does not support raid%d with %d disk%s\n", |
5140 | level, raiddisks, raiddisks > 1 ? "s" : ""); | |
5141 | return 0; | |
5142 | } | |
cd9d1ac7 DW |
5143 | |
5144 | if (chunk && (*chunk == 0 || *chunk == UnSet)) | |
5145 | *chunk = imsm_default_chunk(super->orom); | |
5146 | ||
5147 | if (super->orom && chunk && !imsm_orom_has_chunk(super->orom, *chunk)) { | |
5148 | pr_vrb(": platform does not support a chunk size of: " | |
5149 | "%d\n", *chunk); | |
5150 | return 0; | |
6592ce37 | 5151 | } |
cd9d1ac7 | 5152 | |
6592ce37 DW |
5153 | if (layout != imsm_level_to_layout(level)) { |
5154 | if (level == 5) | |
5155 | pr_vrb(": imsm raid 5 only supports the left-asymmetric layout\n"); | |
5156 | else if (level == 10) | |
5157 | pr_vrb(": imsm raid 10 only supports the n2 layout\n"); | |
5158 | else | |
5159 | pr_vrb(": imsm unknown layout %#x for this raid level %d\n", | |
5160 | layout, level); | |
5161 | return 0; | |
5162 | } | |
6592ce37 DW |
5163 | return 1; |
5164 | } | |
5165 | ||
c2c087e6 DW |
5166 | /* validate_geometry_imsm_volume - lifted from validate_geometry_ddf_bvd |
5167 | * FIX ME add ahci details | |
5168 | */ | |
8b353278 | 5169 | static int validate_geometry_imsm_volume(struct supertype *st, int level, |
c21e737b | 5170 | int layout, int raiddisks, int *chunk, |
c2c087e6 | 5171 | unsigned long long size, char *dev, |
2c514b71 NB |
5172 | unsigned long long *freesize, |
5173 | int verbose) | |
cdddbdbc | 5174 | { |
c2c087e6 DW |
5175 | struct stat stb; |
5176 | struct intel_super *super = st->sb; | |
b2916f25 | 5177 | struct imsm_super *mpb; |
c2c087e6 DW |
5178 | struct dl *dl; |
5179 | unsigned long long pos = 0; | |
5180 | unsigned long long maxsize; | |
5181 | struct extent *e; | |
5182 | int i; | |
cdddbdbc | 5183 | |
88c32bb1 DW |
5184 | /* We must have the container info already read in. */ |
5185 | if (!super) | |
c2c087e6 DW |
5186 | return 0; |
5187 | ||
b2916f25 JS |
5188 | mpb = super->anchor; |
5189 | ||
e7cb06c8 LO |
5190 | if (mpb->num_raid_devs > 0 && mpb->num_disks != raiddisks) { |
5191 | fprintf(stderr, Name ": the option-rom requires all " | |
5192 | "member disks to be a member of all volumes.\n"); | |
5193 | return 0; | |
5194 | } | |
5195 | ||
d54559f0 LM |
5196 | if (!validate_geometry_imsm_orom(super, level, layout, raiddisks, chunk, verbose)) { |
5197 | fprintf(stderr, Name ": RAID gemetry validation failed. " | |
5198 | "Cannot proceed with the action(s).\n"); | |
c2c087e6 | 5199 | return 0; |
d54559f0 | 5200 | } |
c2c087e6 DW |
5201 | if (!dev) { |
5202 | /* General test: make sure there is space for | |
2da8544a DW |
5203 | * 'raiddisks' device extents of size 'size' at a given |
5204 | * offset | |
c2c087e6 | 5205 | */ |
e46273eb | 5206 | unsigned long long minsize = size; |
b7528a20 | 5207 | unsigned long long start_offset = MaxSector; |
c2c087e6 DW |
5208 | int dcnt = 0; |
5209 | if (minsize == 0) | |
5210 | minsize = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
5211 | for (dl = super->disks; dl ; dl = dl->next) { | |
5212 | int found = 0; | |
5213 | ||
bf5a934a | 5214 | pos = 0; |
c2c087e6 DW |
5215 | i = 0; |
5216 | e = get_extents(super, dl); | |
5217 | if (!e) continue; | |
5218 | do { | |
5219 | unsigned long long esize; | |
5220 | esize = e[i].start - pos; | |
5221 | if (esize >= minsize) | |
5222 | found = 1; | |
b7528a20 | 5223 | if (found && start_offset == MaxSector) { |
2da8544a DW |
5224 | start_offset = pos; |
5225 | break; | |
5226 | } else if (found && pos != start_offset) { | |
5227 | found = 0; | |
5228 | break; | |
5229 | } | |
c2c087e6 DW |
5230 | pos = e[i].start + e[i].size; |
5231 | i++; | |
5232 | } while (e[i-1].size); | |
5233 | if (found) | |
5234 | dcnt++; | |
5235 | free(e); | |
5236 | } | |
5237 | if (dcnt < raiddisks) { | |
2c514b71 NB |
5238 | if (verbose) |
5239 | fprintf(stderr, Name ": imsm: Not enough " | |
5240 | "devices with space for this array " | |
5241 | "(%d < %d)\n", | |
5242 | dcnt, raiddisks); | |
c2c087e6 DW |
5243 | return 0; |
5244 | } | |
5245 | return 1; | |
5246 | } | |
0dcecb2e | 5247 | |
c2c087e6 DW |
5248 | /* This device must be a member of the set */ |
5249 | if (stat(dev, &stb) < 0) | |
5250 | return 0; | |
5251 | if ((S_IFMT & stb.st_mode) != S_IFBLK) | |
5252 | return 0; | |
5253 | for (dl = super->disks ; dl ; dl = dl->next) { | |
f21e18ca N |
5254 | if (dl->major == (int)major(stb.st_rdev) && |
5255 | dl->minor == (int)minor(stb.st_rdev)) | |
c2c087e6 DW |
5256 | break; |
5257 | } | |
5258 | if (!dl) { | |
2c514b71 NB |
5259 | if (verbose) |
5260 | fprintf(stderr, Name ": %s is not in the " | |
5261 | "same imsm set\n", dev); | |
c2c087e6 | 5262 | return 0; |
a20d2ba5 DW |
5263 | } else if (super->orom && dl->index < 0 && mpb->num_raid_devs) { |
5264 | /* If a volume is present then the current creation attempt | |
5265 | * cannot incorporate new spares because the orom may not | |
5266 | * understand this configuration (all member disks must be | |
5267 | * members of each array in the container). | |
5268 | */ | |
5269 | fprintf(stderr, Name ": %s is a spare and a volume" | |
5270 | " is already defined for this container\n", dev); | |
5271 | fprintf(stderr, Name ": The option-rom requires all member" | |
5272 | " disks to be a member of all volumes\n"); | |
5273 | return 0; | |
c2c087e6 | 5274 | } |
0dcecb2e DW |
5275 | |
5276 | /* retrieve the largest free space block */ | |
c2c087e6 DW |
5277 | e = get_extents(super, dl); |
5278 | maxsize = 0; | |
5279 | i = 0; | |
0dcecb2e DW |
5280 | if (e) { |
5281 | do { | |
5282 | unsigned long long esize; | |
5283 | ||
5284 | esize = e[i].start - pos; | |
5285 | if (esize >= maxsize) | |
5286 | maxsize = esize; | |
5287 | pos = e[i].start + e[i].size; | |
5288 | i++; | |
5289 | } while (e[i-1].size); | |
5290 | dl->e = e; | |
5291 | dl->extent_cnt = i; | |
5292 | } else { | |
5293 | if (verbose) | |
5294 | fprintf(stderr, Name ": unable to determine free space for: %s\n", | |
5295 | dev); | |
5296 | return 0; | |
5297 | } | |
5298 | if (maxsize < size) { | |
5299 | if (verbose) | |
5300 | fprintf(stderr, Name ": %s not enough space (%llu < %llu)\n", | |
5301 | dev, maxsize, size); | |
5302 | return 0; | |
5303 | } | |
5304 | ||
5305 | /* count total number of extents for merge */ | |
5306 | i = 0; | |
5307 | for (dl = super->disks; dl; dl = dl->next) | |
5308 | if (dl->e) | |
5309 | i += dl->extent_cnt; | |
5310 | ||
5311 | maxsize = merge_extents(super, i); | |
3baa56ab LO |
5312 | |
5313 | if (!check_env("IMSM_NO_PLATFORM") && | |
5314 | mpb->num_raid_devs > 0 && size && size != maxsize) { | |
5315 | fprintf(stderr, Name ": attempting to create a second " | |
5316 | "volume with size less then remaining space. " | |
5317 | "Aborting...\n"); | |
5318 | return 0; | |
5319 | } | |
5320 | ||
a7dd165b | 5321 | if (maxsize < size || maxsize == 0) { |
0dcecb2e DW |
5322 | if (verbose) |
5323 | fprintf(stderr, Name ": not enough space after merge (%llu < %llu)\n", | |
5324 | maxsize, size); | |
5325 | return 0; | |
0dcecb2e DW |
5326 | } |
5327 | ||
c2c087e6 DW |
5328 | *freesize = maxsize; |
5329 | ||
5330 | return 1; | |
cdddbdbc DW |
5331 | } |
5332 | ||
efb30e7f DW |
5333 | static int reserve_space(struct supertype *st, int raiddisks, |
5334 | unsigned long long size, int chunk, | |
5335 | unsigned long long *freesize) | |
5336 | { | |
5337 | struct intel_super *super = st->sb; | |
5338 | struct imsm_super *mpb = super->anchor; | |
5339 | struct dl *dl; | |
5340 | int i; | |
5341 | int extent_cnt; | |
5342 | struct extent *e; | |
5343 | unsigned long long maxsize; | |
5344 | unsigned long long minsize; | |
5345 | int cnt; | |
5346 | int used; | |
5347 | ||
5348 | /* find the largest common start free region of the possible disks */ | |
5349 | used = 0; | |
5350 | extent_cnt = 0; | |
5351 | cnt = 0; | |
5352 | for (dl = super->disks; dl; dl = dl->next) { | |
5353 | dl->raiddisk = -1; | |
5354 | ||
5355 | if (dl->index >= 0) | |
5356 | used++; | |
5357 | ||
5358 | /* don't activate new spares if we are orom constrained | |
5359 | * and there is already a volume active in the container | |
5360 | */ | |
5361 | if (super->orom && dl->index < 0 && mpb->num_raid_devs) | |
5362 | continue; | |
5363 | ||
5364 | e = get_extents(super, dl); | |
5365 | if (!e) | |
5366 | continue; | |
5367 | for (i = 1; e[i-1].size; i++) | |
5368 | ; | |
5369 | dl->e = e; | |
5370 | dl->extent_cnt = i; | |
5371 | extent_cnt += i; | |
5372 | cnt++; | |
5373 | } | |
5374 | ||
5375 | maxsize = merge_extents(super, extent_cnt); | |
5376 | minsize = size; | |
5377 | if (size == 0) | |
612e59d8 CA |
5378 | /* chunk is in K */ |
5379 | minsize = chunk * 2; | |
efb30e7f DW |
5380 | |
5381 | if (cnt < raiddisks || | |
5382 | (super->orom && used && used != raiddisks) || | |
a7dd165b DW |
5383 | maxsize < minsize || |
5384 | maxsize == 0) { | |
efb30e7f DW |
5385 | fprintf(stderr, Name ": not enough devices with space to create array.\n"); |
5386 | return 0; /* No enough free spaces large enough */ | |
5387 | } | |
5388 | ||
5389 | if (size == 0) { | |
5390 | size = maxsize; | |
5391 | if (chunk) { | |
612e59d8 CA |
5392 | size /= 2 * chunk; |
5393 | size *= 2 * chunk; | |
efb30e7f DW |
5394 | } |
5395 | } | |
5396 | ||
5397 | cnt = 0; | |
5398 | for (dl = super->disks; dl; dl = dl->next) | |
5399 | if (dl->e) | |
5400 | dl->raiddisk = cnt++; | |
5401 | ||
5402 | *freesize = size; | |
5403 | ||
5404 | return 1; | |
5405 | } | |
5406 | ||
bf5a934a | 5407 | static int validate_geometry_imsm(struct supertype *st, int level, int layout, |
c21e737b | 5408 | int raiddisks, int *chunk, unsigned long long size, |
bf5a934a DW |
5409 | char *dev, unsigned long long *freesize, |
5410 | int verbose) | |
5411 | { | |
5412 | int fd, cfd; | |
5413 | struct mdinfo *sra; | |
20cbe8d2 | 5414 | int is_member = 0; |
bf5a934a | 5415 | |
d54559f0 LM |
5416 | /* load capability |
5417 | * if given unused devices create a container | |
bf5a934a DW |
5418 | * if given given devices in a container create a member volume |
5419 | */ | |
5420 | if (level == LEVEL_CONTAINER) { | |
5421 | /* Must be a fresh device to add to a container */ | |
5422 | return validate_geometry_imsm_container(st, level, layout, | |
c21e737b CA |
5423 | raiddisks, |
5424 | chunk?*chunk:0, size, | |
bf5a934a DW |
5425 | dev, freesize, |
5426 | verbose); | |
5427 | } | |
5428 | ||
8592f29d | 5429 | if (!dev) { |
e91a3bad LM |
5430 | if (st->sb) { |
5431 | if (!validate_geometry_imsm_orom(st->sb, level, layout, | |
5432 | raiddisks, chunk, | |
5433 | verbose)) | |
5434 | return 0; | |
efb30e7f DW |
5435 | /* we are being asked to automatically layout a |
5436 | * new volume based on the current contents of | |
5437 | * the container. If the the parameters can be | |
5438 | * satisfied reserve_space will record the disks, | |
5439 | * start offset, and size of the volume to be | |
5440 | * created. add_to_super and getinfo_super | |
5441 | * detect when autolayout is in progress. | |
5442 | */ | |
e91a3bad LM |
5443 | if (freesize) |
5444 | return reserve_space(st, raiddisks, size, | |
5445 | chunk?*chunk:0, freesize); | |
8592f29d N |
5446 | } |
5447 | return 1; | |
5448 | } | |
bf5a934a DW |
5449 | if (st->sb) { |
5450 | /* creating in a given container */ | |
5451 | return validate_geometry_imsm_volume(st, level, layout, | |
5452 | raiddisks, chunk, size, | |
5453 | dev, freesize, verbose); | |
5454 | } | |
5455 | ||
bf5a934a DW |
5456 | /* This device needs to be a device in an 'imsm' container */ |
5457 | fd = open(dev, O_RDONLY|O_EXCL, 0); | |
5458 | if (fd >= 0) { | |
5459 | if (verbose) | |
5460 | fprintf(stderr, | |
5461 | Name ": Cannot create this array on device %s\n", | |
5462 | dev); | |
5463 | close(fd); | |
5464 | return 0; | |
5465 | } | |
5466 | if (errno != EBUSY || (fd = open(dev, O_RDONLY, 0)) < 0) { | |
5467 | if (verbose) | |
5468 | fprintf(stderr, Name ": Cannot open %s: %s\n", | |
5469 | dev, strerror(errno)); | |
5470 | return 0; | |
5471 | } | |
5472 | /* Well, it is in use by someone, maybe an 'imsm' container. */ | |
5473 | cfd = open_container(fd); | |
20cbe8d2 | 5474 | close(fd); |
bf5a934a | 5475 | if (cfd < 0) { |
bf5a934a DW |
5476 | if (verbose) |
5477 | fprintf(stderr, Name ": Cannot use %s: It is busy\n", | |
5478 | dev); | |
5479 | return 0; | |
5480 | } | |
5481 | sra = sysfs_read(cfd, 0, GET_VERSION); | |
bf5a934a | 5482 | if (sra && sra->array.major_version == -1 && |
20cbe8d2 AW |
5483 | strcmp(sra->text_version, "imsm") == 0) |
5484 | is_member = 1; | |
5485 | sysfs_free(sra); | |
5486 | if (is_member) { | |
bf5a934a DW |
5487 | /* This is a member of a imsm container. Load the container |
5488 | * and try to create a volume | |
5489 | */ | |
5490 | struct intel_super *super; | |
5491 | ||
e1902a7b | 5492 | if (load_super_imsm_all(st, cfd, (void **) &super, NULL) == 0) { |
bf5a934a DW |
5493 | st->sb = super; |
5494 | st->container_dev = fd2devnum(cfd); | |
5495 | close(cfd); | |
5496 | return validate_geometry_imsm_volume(st, level, layout, | |
5497 | raiddisks, chunk, | |
5498 | size, dev, | |
ecbd9e81 N |
5499 | freesize, 1) |
5500 | ? 1 : -1; | |
bf5a934a | 5501 | } |
20cbe8d2 | 5502 | } |
bf5a934a | 5503 | |
20cbe8d2 AW |
5504 | if (verbose) |
5505 | fprintf(stderr, Name ": failed container membership check\n"); | |
5506 | ||
5507 | close(cfd); | |
5508 | return 0; | |
bf5a934a | 5509 | } |
0bd16cf2 | 5510 | |
30f58b22 | 5511 | static void default_geometry_imsm(struct supertype *st, int *level, int *layout, int *chunk) |
0bd16cf2 DJ |
5512 | { |
5513 | struct intel_super *super = st->sb; | |
5514 | ||
30f58b22 DW |
5515 | if (level && *level == UnSet) |
5516 | *level = LEVEL_CONTAINER; | |
5517 | ||
5518 | if (level && layout && *layout == UnSet) | |
5519 | *layout = imsm_level_to_layout(*level); | |
0bd16cf2 | 5520 | |
cd9d1ac7 DW |
5521 | if (chunk && (*chunk == UnSet || *chunk == 0)) |
5522 | *chunk = imsm_default_chunk(super->orom); | |
0bd16cf2 DJ |
5523 | } |
5524 | ||
33414a01 DW |
5525 | static void handle_missing(struct intel_super *super, struct imsm_dev *dev); |
5526 | ||
5527 | static int kill_subarray_imsm(struct supertype *st) | |
5528 | { | |
5529 | /* remove the subarray currently referenced by ->current_vol */ | |
5530 | __u8 i; | |
5531 | struct intel_dev **dp; | |
5532 | struct intel_super *super = st->sb; | |
5533 | __u8 current_vol = super->current_vol; | |
5534 | struct imsm_super *mpb = super->anchor; | |
5535 | ||
5536 | if (super->current_vol < 0) | |
5537 | return 2; | |
5538 | super->current_vol = -1; /* invalidate subarray cursor */ | |
5539 | ||
5540 | /* block deletions that would change the uuid of active subarrays | |
5541 | * | |
5542 | * FIXME when immutable ids are available, but note that we'll | |
5543 | * also need to fixup the invalidated/active subarray indexes in | |
5544 | * mdstat | |
5545 | */ | |
5546 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
5547 | char subarray[4]; | |
5548 | ||
5549 | if (i < current_vol) | |
5550 | continue; | |
5551 | sprintf(subarray, "%u", i); | |
5552 | if (is_subarray_active(subarray, st->devname)) { | |
5553 | fprintf(stderr, | |
5554 | Name ": deleting subarray-%d would change the UUID of active subarray-%d, aborting\n", | |
5555 | current_vol, i); | |
5556 | ||
5557 | return 2; | |
5558 | } | |
5559 | } | |
5560 | ||
5561 | if (st->update_tail) { | |
5562 | struct imsm_update_kill_array *u = malloc(sizeof(*u)); | |
5563 | ||
5564 | if (!u) | |
5565 | return 2; | |
5566 | u->type = update_kill_array; | |
5567 | u->dev_idx = current_vol; | |
5568 | append_metadata_update(st, u, sizeof(*u)); | |
5569 | ||
5570 | return 0; | |
5571 | } | |
5572 | ||
5573 | for (dp = &super->devlist; *dp;) | |
5574 | if ((*dp)->index == current_vol) { | |
5575 | *dp = (*dp)->next; | |
5576 | } else { | |
5577 | handle_missing(super, (*dp)->dev); | |
5578 | if ((*dp)->index > current_vol) | |
5579 | (*dp)->index--; | |
5580 | dp = &(*dp)->next; | |
5581 | } | |
5582 | ||
5583 | /* no more raid devices, all active components are now spares, | |
5584 | * but of course failed are still failed | |
5585 | */ | |
5586 | if (--mpb->num_raid_devs == 0) { | |
5587 | struct dl *d; | |
5588 | ||
5589 | for (d = super->disks; d; d = d->next) | |
a8619d23 AK |
5590 | if (d->index > -2) |
5591 | mark_spare(d); | |
33414a01 DW |
5592 | } |
5593 | ||
5594 | super->updates_pending++; | |
5595 | ||
5596 | return 0; | |
5597 | } | |
aa534678 | 5598 | |
a951a4f7 | 5599 | static int update_subarray_imsm(struct supertype *st, char *subarray, |
fa56eddb | 5600 | char *update, struct mddev_ident *ident) |
aa534678 DW |
5601 | { |
5602 | /* update the subarray currently referenced by ->current_vol */ | |
5603 | struct intel_super *super = st->sb; | |
5604 | struct imsm_super *mpb = super->anchor; | |
5605 | ||
aa534678 DW |
5606 | if (strcmp(update, "name") == 0) { |
5607 | char *name = ident->name; | |
a951a4f7 N |
5608 | char *ep; |
5609 | int vol; | |
aa534678 | 5610 | |
a951a4f7 | 5611 | if (is_subarray_active(subarray, st->devname)) { |
aa534678 DW |
5612 | fprintf(stderr, |
5613 | Name ": Unable to update name of active subarray\n"); | |
5614 | return 2; | |
5615 | } | |
5616 | ||
5617 | if (!check_name(super, name, 0)) | |
5618 | return 2; | |
5619 | ||
a951a4f7 N |
5620 | vol = strtoul(subarray, &ep, 10); |
5621 | if (*ep != '\0' || vol >= super->anchor->num_raid_devs) | |
5622 | return 2; | |
5623 | ||
aa534678 DW |
5624 | if (st->update_tail) { |
5625 | struct imsm_update_rename_array *u = malloc(sizeof(*u)); | |
5626 | ||
5627 | if (!u) | |
5628 | return 2; | |
5629 | u->type = update_rename_array; | |
a951a4f7 | 5630 | u->dev_idx = vol; |
aa534678 DW |
5631 | snprintf((char *) u->name, MAX_RAID_SERIAL_LEN, "%s", name); |
5632 | append_metadata_update(st, u, sizeof(*u)); | |
5633 | } else { | |
5634 | struct imsm_dev *dev; | |
5635 | int i; | |
5636 | ||
a951a4f7 | 5637 | dev = get_imsm_dev(super, vol); |
aa534678 DW |
5638 | snprintf((char *) dev->volume, MAX_RAID_SERIAL_LEN, "%s", name); |
5639 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
5640 | dev = get_imsm_dev(super, i); | |
5641 | handle_missing(super, dev); | |
5642 | } | |
5643 | super->updates_pending++; | |
5644 | } | |
5645 | } else | |
5646 | return 2; | |
5647 | ||
5648 | return 0; | |
5649 | } | |
bf5a934a | 5650 | |
28bce06f AK |
5651 | static int is_gen_migration(struct imsm_dev *dev) |
5652 | { | |
7534230b AK |
5653 | if (dev == NULL) |
5654 | return 0; | |
5655 | ||
28bce06f AK |
5656 | if (!dev->vol.migr_state) |
5657 | return 0; | |
5658 | ||
5659 | if (migr_type(dev) == MIGR_GEN_MIGR) | |
5660 | return 1; | |
5661 | ||
5662 | return 0; | |
5663 | } | |
71204a50 | 5664 | #endif /* MDASSEMBLE */ |
28bce06f | 5665 | |
1e5c6983 DW |
5666 | static int is_rebuilding(struct imsm_dev *dev) |
5667 | { | |
5668 | struct imsm_map *migr_map; | |
5669 | ||
5670 | if (!dev->vol.migr_state) | |
5671 | return 0; | |
5672 | ||
5673 | if (migr_type(dev) != MIGR_REBUILD) | |
5674 | return 0; | |
5675 | ||
5676 | migr_map = get_imsm_map(dev, 1); | |
5677 | ||
5678 | if (migr_map->map_state == IMSM_T_STATE_DEGRADED) | |
5679 | return 1; | |
5680 | else | |
5681 | return 0; | |
5682 | } | |
5683 | ||
c47b0ff6 AK |
5684 | static void update_recovery_start(struct intel_super *super, |
5685 | struct imsm_dev *dev, | |
5686 | struct mdinfo *array) | |
1e5c6983 DW |
5687 | { |
5688 | struct mdinfo *rebuild = NULL; | |
5689 | struct mdinfo *d; | |
5690 | __u32 units; | |
5691 | ||
5692 | if (!is_rebuilding(dev)) | |
5693 | return; | |
5694 | ||
5695 | /* Find the rebuild target, but punt on the dual rebuild case */ | |
5696 | for (d = array->devs; d; d = d->next) | |
5697 | if (d->recovery_start == 0) { | |
5698 | if (rebuild) | |
5699 | return; | |
5700 | rebuild = d; | |
5701 | } | |
5702 | ||
4363fd80 DW |
5703 | if (!rebuild) { |
5704 | /* (?) none of the disks are marked with | |
5705 | * IMSM_ORD_REBUILD, so assume they are missing and the | |
5706 | * disk_ord_tbl was not correctly updated | |
5707 | */ | |
5708 | dprintf("%s: failed to locate out-of-sync disk\n", __func__); | |
5709 | return; | |
5710 | } | |
5711 | ||
1e5c6983 | 5712 | units = __le32_to_cpu(dev->vol.curr_migr_unit); |
c47b0ff6 | 5713 | rebuild->recovery_start = units * blocks_per_migr_unit(super, dev); |
1e5c6983 DW |
5714 | } |
5715 | ||
9e2d750d | 5716 | #ifndef MDASSEMBLE |
276d77db | 5717 | static int recover_backup_imsm(struct supertype *st, struct mdinfo *info); |
9e2d750d | 5718 | #endif |
1e5c6983 | 5719 | |
00bbdbda | 5720 | static struct mdinfo *container_content_imsm(struct supertype *st, char *subarray) |
cdddbdbc | 5721 | { |
4f5bc454 DW |
5722 | /* Given a container loaded by load_super_imsm_all, |
5723 | * extract information about all the arrays into | |
5724 | * an mdinfo tree. | |
00bbdbda | 5725 | * If 'subarray' is given, just extract info about that array. |
4f5bc454 DW |
5726 | * |
5727 | * For each imsm_dev create an mdinfo, fill it in, | |
5728 | * then look for matching devices in super->disks | |
5729 | * and create appropriate device mdinfo. | |
5730 | */ | |
5731 | struct intel_super *super = st->sb; | |
949c47a0 | 5732 | struct imsm_super *mpb = super->anchor; |
4f5bc454 | 5733 | struct mdinfo *rest = NULL; |
00bbdbda | 5734 | unsigned int i; |
81219e70 | 5735 | int sb_errors = 0; |
abef11a3 AK |
5736 | struct dl *d; |
5737 | int spare_disks = 0; | |
cdddbdbc | 5738 | |
19482bcc AK |
5739 | /* do not assemble arrays when not all attributes are supported */ |
5740 | if (imsm_check_attributes(mpb->attributes) == 0) { | |
81219e70 LM |
5741 | sb_errors = 1; |
5742 | fprintf(stderr, Name ": Unsupported attributes in IMSM metadata." | |
5743 | "Arrays activation is blocked.\n"); | |
19482bcc AK |
5744 | } |
5745 | ||
a06d022d | 5746 | /* check for bad blocks */ |
81219e70 LM |
5747 | if (imsm_bbm_log_size(super->anchor)) { |
5748 | fprintf(stderr, Name ": BBM log found in IMSM metadata." | |
5749 | "Arrays activation is blocked.\n"); | |
5750 | sb_errors = 1; | |
5751 | } | |
5752 | ||
604b746f | 5753 | |
abef11a3 AK |
5754 | /* count spare devices, not used in maps |
5755 | */ | |
5756 | for (d = super->disks; d; d = d->next) | |
5757 | if (d->index == -1) | |
5758 | spare_disks++; | |
5759 | ||
4f5bc454 | 5760 | for (i = 0; i < mpb->num_raid_devs; i++) { |
00bbdbda N |
5761 | struct imsm_dev *dev; |
5762 | struct imsm_map *map; | |
86e3692b | 5763 | struct imsm_map *map2; |
4f5bc454 | 5764 | struct mdinfo *this; |
2db86302 | 5765 | int slot, chunk; |
00bbdbda N |
5766 | char *ep; |
5767 | ||
5768 | if (subarray && | |
5769 | (i != strtoul(subarray, &ep, 10) || *ep != '\0')) | |
5770 | continue; | |
5771 | ||
5772 | dev = get_imsm_dev(super, i); | |
5773 | map = get_imsm_map(dev, 0); | |
86e3692b | 5774 | map2 = get_imsm_map(dev, 1); |
4f5bc454 | 5775 | |
1ce0101c DW |
5776 | /* do not publish arrays that are in the middle of an |
5777 | * unsupported migration | |
5778 | */ | |
5779 | if (dev->vol.migr_state && | |
28bce06f | 5780 | (migr_type(dev) == MIGR_STATE_CHANGE)) { |
1ce0101c DW |
5781 | fprintf(stderr, Name ": cannot assemble volume '%.16s':" |
5782 | " unsupported migration in progress\n", | |
5783 | dev->volume); | |
5784 | continue; | |
5785 | } | |
2db86302 LM |
5786 | /* do not publish arrays that are not support by controller's |
5787 | * OROM/EFI | |
5788 | */ | |
1ce0101c | 5789 | |
2db86302 | 5790 | chunk = __le16_to_cpu(map->blocks_per_strip) >> 1; |
4f5bc454 | 5791 | this = malloc(sizeof(*this)); |
0fbd635c | 5792 | if (!this) { |
cf1be220 | 5793 | fprintf(stderr, Name ": failed to allocate %zu bytes\n", |
0fbd635c AW |
5794 | sizeof(*this)); |
5795 | break; | |
5796 | } | |
4f5bc454 | 5797 | |
301406c9 | 5798 | super->current_vol = i; |
a5d85af7 | 5799 | getinfo_super_imsm_volume(st, this, NULL); |
9894ec0d | 5800 | this->next = rest; |
81219e70 LM |
5801 | #ifndef MDASSEMBLE |
5802 | /* mdadm does not support all metadata features- set the bit in all arrays state */ | |
5803 | if (!validate_geometry_imsm_orom(super, | |
5804 | get_imsm_raid_level(map), /* RAID level */ | |
5805 | imsm_level_to_layout(get_imsm_raid_level(map)), | |
5806 | map->num_members, /* raid disks */ | |
5807 | &chunk, | |
5808 | 1 /* verbose */)) { | |
446894ea N |
5809 | fprintf(stderr, Name ": IMSM RAID geometry validation" |
5810 | " failed. Array %s activation is blocked.\n", | |
81219e70 LM |
5811 | dev->volume); |
5812 | this->array.state |= | |
5813 | (1<<MD_SB_BLOCK_CONTAINER_RESHAPE) | | |
5814 | (1<<MD_SB_BLOCK_VOLUME); | |
5815 | } | |
5816 | #endif | |
5817 | ||
5818 | /* if array has bad blocks, set suitable bit in all arrays state */ | |
5819 | if (sb_errors) | |
5820 | this->array.state |= | |
5821 | (1<<MD_SB_BLOCK_CONTAINER_RESHAPE) | | |
5822 | (1<<MD_SB_BLOCK_VOLUME); | |
5823 | ||
4f5bc454 | 5824 | for (slot = 0 ; slot < map->num_members; slot++) { |
1e5c6983 | 5825 | unsigned long long recovery_start; |
4f5bc454 DW |
5826 | struct mdinfo *info_d; |
5827 | struct dl *d; | |
5828 | int idx; | |
9a1608e5 | 5829 | int skip; |
7eef0453 | 5830 | __u32 ord; |
4f5bc454 | 5831 | |
9a1608e5 | 5832 | skip = 0; |
98130f40 | 5833 | idx = get_imsm_disk_idx(dev, slot, 0); |
196b0d44 | 5834 | ord = get_imsm_ord_tbl_ent(dev, slot, -1); |
4f5bc454 DW |
5835 | for (d = super->disks; d ; d = d->next) |
5836 | if (d->index == idx) | |
0fbd635c | 5837 | break; |
4f5bc454 | 5838 | |
1e5c6983 | 5839 | recovery_start = MaxSector; |
4f5bc454 | 5840 | if (d == NULL) |
9a1608e5 | 5841 | skip = 1; |
25ed7e59 | 5842 | if (d && is_failed(&d->disk)) |
9a1608e5 | 5843 | skip = 1; |
7eef0453 | 5844 | if (ord & IMSM_ORD_REBUILD) |
1e5c6983 | 5845 | recovery_start = 0; |
9a1608e5 DW |
5846 | |
5847 | /* | |
5848 | * if we skip some disks the array will be assmebled degraded; | |
1e5c6983 DW |
5849 | * reset resync start to avoid a dirty-degraded |
5850 | * situation when performing the intial sync | |
9a1608e5 DW |
5851 | * |
5852 | * FIXME handle dirty degraded | |
5853 | */ | |
1e5c6983 | 5854 | if ((skip || recovery_start == 0) && !dev->vol.dirty) |
b7528a20 | 5855 | this->resync_start = MaxSector; |
9a1608e5 DW |
5856 | if (skip) |
5857 | continue; | |
4f5bc454 | 5858 | |
1e5c6983 | 5859 | info_d = calloc(1, sizeof(*info_d)); |
9a1608e5 DW |
5860 | if (!info_d) { |
5861 | fprintf(stderr, Name ": failed to allocate disk" | |
1ce0101c | 5862 | " for volume %.16s\n", dev->volume); |
1e5c6983 DW |
5863 | info_d = this->devs; |
5864 | while (info_d) { | |
5865 | struct mdinfo *d = info_d->next; | |
5866 | ||
5867 | free(info_d); | |
5868 | info_d = d; | |
5869 | } | |
9a1608e5 DW |
5870 | free(this); |
5871 | this = rest; | |
5872 | break; | |
5873 | } | |
4f5bc454 DW |
5874 | info_d->next = this->devs; |
5875 | this->devs = info_d; | |
5876 | ||
4f5bc454 DW |
5877 | info_d->disk.number = d->index; |
5878 | info_d->disk.major = d->major; | |
5879 | info_d->disk.minor = d->minor; | |
5880 | info_d->disk.raid_disk = slot; | |
1e5c6983 | 5881 | info_d->recovery_start = recovery_start; |
86e3692b AK |
5882 | if (map2) { |
5883 | if (slot < map2->num_members) | |
5884 | info_d->disk.state = (1 << MD_DISK_ACTIVE); | |
04c3c514 AK |
5885 | else |
5886 | this->array.spare_disks++; | |
86e3692b AK |
5887 | } else { |
5888 | if (slot < map->num_members) | |
5889 | info_d->disk.state = (1 << MD_DISK_ACTIVE); | |
04c3c514 AK |
5890 | else |
5891 | this->array.spare_disks++; | |
86e3692b | 5892 | } |
1e5c6983 DW |
5893 | if (info_d->recovery_start == MaxSector) |
5894 | this->array.working_disks++; | |
4f5bc454 DW |
5895 | |
5896 | info_d->events = __le32_to_cpu(mpb->generation_num); | |
5897 | info_d->data_offset = __le32_to_cpu(map->pba_of_lba0); | |
5898 | info_d->component_size = __le32_to_cpu(map->blocks_per_member); | |
4f5bc454 | 5899 | } |
1e5c6983 | 5900 | /* now that the disk list is up-to-date fixup recovery_start */ |
c47b0ff6 | 5901 | update_recovery_start(super, dev, this); |
abef11a3 | 5902 | this->array.spare_disks += spare_disks; |
276d77db | 5903 | |
9e2d750d | 5904 | #ifndef MDASSEMBLE |
276d77db AK |
5905 | /* check for reshape */ |
5906 | if (this->reshape_active == 1) | |
5907 | recover_backup_imsm(st, this); | |
9e2d750d | 5908 | #endif |
9a1608e5 | 5909 | rest = this; |
4f5bc454 DW |
5910 | } |
5911 | ||
5912 | return rest; | |
cdddbdbc DW |
5913 | } |
5914 | ||
845dea95 | 5915 | |
fb49eef2 | 5916 | static __u8 imsm_check_degraded(struct intel_super *super, struct imsm_dev *dev, int failed) |
c2a1e7da | 5917 | { |
a965f303 | 5918 | struct imsm_map *map = get_imsm_map(dev, 0); |
c2a1e7da DW |
5919 | |
5920 | if (!failed) | |
3393c6af DW |
5921 | return map->map_state == IMSM_T_STATE_UNINITIALIZED ? |
5922 | IMSM_T_STATE_UNINITIALIZED : IMSM_T_STATE_NORMAL; | |
c2a1e7da DW |
5923 | |
5924 | switch (get_imsm_raid_level(map)) { | |
5925 | case 0: | |
5926 | return IMSM_T_STATE_FAILED; | |
5927 | break; | |
5928 | case 1: | |
5929 | if (failed < map->num_members) | |
5930 | return IMSM_T_STATE_DEGRADED; | |
5931 | else | |
5932 | return IMSM_T_STATE_FAILED; | |
5933 | break; | |
5934 | case 10: | |
5935 | { | |
5936 | /** | |
c92a2527 DW |
5937 | * check to see if any mirrors have failed, otherwise we |
5938 | * are degraded. Even numbered slots are mirrored on | |
5939 | * slot+1 | |
c2a1e7da | 5940 | */ |
c2a1e7da | 5941 | int i; |
d9b420a5 N |
5942 | /* gcc -Os complains that this is unused */ |
5943 | int insync = insync; | |
c2a1e7da DW |
5944 | |
5945 | for (i = 0; i < map->num_members; i++) { | |
98130f40 | 5946 | __u32 ord = get_imsm_ord_tbl_ent(dev, i, -1); |
c92a2527 DW |
5947 | int idx = ord_to_idx(ord); |
5948 | struct imsm_disk *disk; | |
c2a1e7da | 5949 | |
c92a2527 DW |
5950 | /* reset the potential in-sync count on even-numbered |
5951 | * slots. num_copies is always 2 for imsm raid10 | |
5952 | */ | |
5953 | if ((i & 1) == 0) | |
5954 | insync = 2; | |
c2a1e7da | 5955 | |
c92a2527 | 5956 | disk = get_imsm_disk(super, idx); |
25ed7e59 | 5957 | if (!disk || is_failed(disk) || ord & IMSM_ORD_REBUILD) |
c92a2527 | 5958 | insync--; |
c2a1e7da | 5959 | |
c92a2527 DW |
5960 | /* no in-sync disks left in this mirror the |
5961 | * array has failed | |
5962 | */ | |
5963 | if (insync == 0) | |
5964 | return IMSM_T_STATE_FAILED; | |
c2a1e7da DW |
5965 | } |
5966 | ||
5967 | return IMSM_T_STATE_DEGRADED; | |
5968 | } | |
5969 | case 5: | |
5970 | if (failed < 2) | |
5971 | return IMSM_T_STATE_DEGRADED; | |
5972 | else | |
5973 | return IMSM_T_STATE_FAILED; | |
5974 | break; | |
5975 | default: | |
5976 | break; | |
5977 | } | |
5978 | ||
5979 | return map->map_state; | |
5980 | } | |
5981 | ||
ff077194 | 5982 | static int imsm_count_failed(struct intel_super *super, struct imsm_dev *dev) |
c2a1e7da DW |
5983 | { |
5984 | int i; | |
5985 | int failed = 0; | |
5986 | struct imsm_disk *disk; | |
ff077194 | 5987 | struct imsm_map *map = get_imsm_map(dev, 0); |
0556e1a2 | 5988 | struct imsm_map *prev = get_imsm_map(dev, dev->vol.migr_state); |
68fe4598 | 5989 | struct imsm_map *map_for_loop; |
0556e1a2 DW |
5990 | __u32 ord; |
5991 | int idx; | |
c2a1e7da | 5992 | |
0556e1a2 DW |
5993 | /* at the beginning of migration we set IMSM_ORD_REBUILD on |
5994 | * disks that are being rebuilt. New failures are recorded to | |
5995 | * map[0]. So we look through all the disks we started with and | |
5996 | * see if any failures are still present, or if any new ones | |
5997 | * have arrived | |
0556e1a2 | 5998 | */ |
68fe4598 LD |
5999 | map_for_loop = prev; |
6000 | if (is_gen_migration(dev)) | |
6001 | if (prev && (map->num_members > prev->num_members)) | |
6002 | map_for_loop = map; | |
6003 | ||
6004 | for (i = 0; i < map_for_loop->num_members; i++) { | |
6005 | ord = 0; | |
6006 | if (i < prev->num_members) | |
6007 | ord |= __le32_to_cpu(prev->disk_ord_tbl[i]); | |
6008 | if (i < map->num_members) | |
6009 | ord |= __le32_to_cpu(map->disk_ord_tbl[i]); | |
0556e1a2 | 6010 | idx = ord_to_idx(ord); |
c2a1e7da | 6011 | |
949c47a0 | 6012 | disk = get_imsm_disk(super, idx); |
25ed7e59 | 6013 | if (!disk || is_failed(disk) || ord & IMSM_ORD_REBUILD) |
fcb84475 | 6014 | failed++; |
c2a1e7da DW |
6015 | } |
6016 | ||
6017 | return failed; | |
845dea95 NB |
6018 | } |
6019 | ||
97b4d0e9 DW |
6020 | #ifndef MDASSEMBLE |
6021 | static int imsm_open_new(struct supertype *c, struct active_array *a, | |
6022 | char *inst) | |
6023 | { | |
6024 | struct intel_super *super = c->sb; | |
6025 | struct imsm_super *mpb = super->anchor; | |
6026 | ||
6027 | if (atoi(inst) >= mpb->num_raid_devs) { | |
6028 | fprintf(stderr, "%s: subarry index %d, out of range\n", | |
6029 | __func__, atoi(inst)); | |
6030 | return -ENODEV; | |
6031 | } | |
6032 | ||
6033 | dprintf("imsm: open_new %s\n", inst); | |
6034 | a->info.container_member = atoi(inst); | |
6035 | return 0; | |
6036 | } | |
6037 | ||
0c046afd DW |
6038 | static int is_resyncing(struct imsm_dev *dev) |
6039 | { | |
6040 | struct imsm_map *migr_map; | |
6041 | ||
6042 | if (!dev->vol.migr_state) | |
6043 | return 0; | |
6044 | ||
1484e727 DW |
6045 | if (migr_type(dev) == MIGR_INIT || |
6046 | migr_type(dev) == MIGR_REPAIR) | |
0c046afd DW |
6047 | return 1; |
6048 | ||
4c9bc37b AK |
6049 | if (migr_type(dev) == MIGR_GEN_MIGR) |
6050 | return 0; | |
6051 | ||
0c046afd DW |
6052 | migr_map = get_imsm_map(dev, 1); |
6053 | ||
4c9bc37b AK |
6054 | if ((migr_map->map_state == IMSM_T_STATE_NORMAL) && |
6055 | (dev->vol.migr_type != MIGR_GEN_MIGR)) | |
0c046afd DW |
6056 | return 1; |
6057 | else | |
6058 | return 0; | |
6059 | } | |
6060 | ||
0556e1a2 DW |
6061 | /* return true if we recorded new information */ |
6062 | static int mark_failure(struct imsm_dev *dev, struct imsm_disk *disk, int idx) | |
47ee5a45 | 6063 | { |
0556e1a2 DW |
6064 | __u32 ord; |
6065 | int slot; | |
6066 | struct imsm_map *map; | |
86c54047 DW |
6067 | char buf[MAX_RAID_SERIAL_LEN+3]; |
6068 | unsigned int len, shift = 0; | |
0556e1a2 DW |
6069 | |
6070 | /* new failures are always set in map[0] */ | |
6071 | map = get_imsm_map(dev, 0); | |
6072 | ||
6073 | slot = get_imsm_disk_slot(map, idx); | |
6074 | if (slot < 0) | |
6075 | return 0; | |
6076 | ||
6077 | ord = __le32_to_cpu(map->disk_ord_tbl[slot]); | |
25ed7e59 | 6078 | if (is_failed(disk) && (ord & IMSM_ORD_REBUILD)) |
0556e1a2 DW |
6079 | return 0; |
6080 | ||
7d0c5e24 LD |
6081 | memcpy(buf, disk->serial, MAX_RAID_SERIAL_LEN); |
6082 | buf[MAX_RAID_SERIAL_LEN] = '\000'; | |
6083 | strcat(buf, ":0"); | |
86c54047 DW |
6084 | if ((len = strlen(buf)) >= MAX_RAID_SERIAL_LEN) |
6085 | shift = len - MAX_RAID_SERIAL_LEN + 1; | |
6086 | strncpy((char *)disk->serial, &buf[shift], MAX_RAID_SERIAL_LEN); | |
6087 | ||
f2f27e63 | 6088 | disk->status |= FAILED_DISK; |
0556e1a2 | 6089 | set_imsm_ord_tbl_ent(map, slot, idx | IMSM_ORD_REBUILD); |
1ace8403 AK |
6090 | if (is_gen_migration(dev)) { |
6091 | struct imsm_map *map2 = get_imsm_map(dev, 1); | |
6092 | if (slot < map2->num_members) | |
6093 | set_imsm_ord_tbl_ent(map2, slot, | |
6094 | idx | IMSM_ORD_REBUILD); | |
6095 | } | |
f21e18ca | 6096 | if (map->failed_disk_num == 0xff) |
0556e1a2 DW |
6097 | map->failed_disk_num = slot; |
6098 | return 1; | |
6099 | } | |
6100 | ||
6101 | static void mark_missing(struct imsm_dev *dev, struct imsm_disk *disk, int idx) | |
6102 | { | |
6103 | mark_failure(dev, disk, idx); | |
6104 | ||
6105 | if (disk->scsi_id == __cpu_to_le32(~(__u32)0)) | |
6106 | return; | |
6107 | ||
47ee5a45 DW |
6108 | disk->scsi_id = __cpu_to_le32(~(__u32)0); |
6109 | memmove(&disk->serial[0], &disk->serial[1], MAX_RAID_SERIAL_LEN - 1); | |
6110 | } | |
6111 | ||
33414a01 DW |
6112 | static void handle_missing(struct intel_super *super, struct imsm_dev *dev) |
6113 | { | |
33414a01 | 6114 | struct dl *dl; |
33414a01 DW |
6115 | |
6116 | if (!super->missing) | |
6117 | return; | |
33414a01 DW |
6118 | |
6119 | dprintf("imsm: mark missing\n"); | |
33414a01 DW |
6120 | for (dl = super->missing; dl; dl = dl->next) |
6121 | mark_missing(dev, &dl->disk, dl->index); | |
6122 | super->updates_pending++; | |
6123 | } | |
6124 | ||
70bdf0dc AK |
6125 | static unsigned long long imsm_set_array_size(struct imsm_dev *dev) |
6126 | { | |
6127 | int used_disks = imsm_num_data_members(dev, 0); | |
6128 | unsigned long long array_blocks; | |
6129 | struct imsm_map *map; | |
6130 | ||
6131 | if (used_disks == 0) { | |
6132 | /* when problems occures | |
6133 | * return current array_blocks value | |
6134 | */ | |
6135 | array_blocks = __le32_to_cpu(dev->size_high); | |
6136 | array_blocks = array_blocks << 32; | |
6137 | array_blocks += __le32_to_cpu(dev->size_low); | |
6138 | ||
6139 | return array_blocks; | |
6140 | } | |
6141 | ||
6142 | /* set array size in metadata | |
6143 | */ | |
6144 | map = get_imsm_map(dev, 0); | |
6145 | array_blocks = map->blocks_per_member * used_disks; | |
6146 | ||
6147 | /* round array size down to closest MB | |
6148 | */ | |
6149 | array_blocks = (array_blocks >> SECT_PER_MB_SHIFT) << SECT_PER_MB_SHIFT; | |
6150 | dev->size_low = __cpu_to_le32((__u32)array_blocks); | |
6151 | dev->size_high = __cpu_to_le32((__u32)(array_blocks >> 32)); | |
6152 | ||
6153 | return array_blocks; | |
6154 | } | |
6155 | ||
28bce06f AK |
6156 | static void imsm_set_disk(struct active_array *a, int n, int state); |
6157 | ||
0e2d1a4e AK |
6158 | static void imsm_progress_container_reshape(struct intel_super *super) |
6159 | { | |
6160 | /* if no device has a migr_state, but some device has a | |
6161 | * different number of members than the previous device, start | |
6162 | * changing the number of devices in this device to match | |
6163 | * previous. | |
6164 | */ | |
6165 | struct imsm_super *mpb = super->anchor; | |
6166 | int prev_disks = -1; | |
6167 | int i; | |
1dfaa380 | 6168 | int copy_map_size; |
0e2d1a4e AK |
6169 | |
6170 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
6171 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
6172 | struct imsm_map *map = get_imsm_map(dev, 0); | |
6173 | struct imsm_map *map2; | |
6174 | int prev_num_members; | |
0e2d1a4e AK |
6175 | |
6176 | if (dev->vol.migr_state) | |
6177 | return; | |
6178 | ||
6179 | if (prev_disks == -1) | |
6180 | prev_disks = map->num_members; | |
6181 | if (prev_disks == map->num_members) | |
6182 | continue; | |
6183 | ||
6184 | /* OK, this array needs to enter reshape mode. | |
6185 | * i.e it needs a migr_state | |
6186 | */ | |
6187 | ||
1dfaa380 | 6188 | copy_map_size = sizeof_imsm_map(map); |
0e2d1a4e AK |
6189 | prev_num_members = map->num_members; |
6190 | map->num_members = prev_disks; | |
6191 | dev->vol.migr_state = 1; | |
6192 | dev->vol.curr_migr_unit = 0; | |
ea672ee1 | 6193 | set_migr_type(dev, MIGR_GEN_MIGR); |
0e2d1a4e AK |
6194 | for (i = prev_num_members; |
6195 | i < map->num_members; i++) | |
6196 | set_imsm_ord_tbl_ent(map, i, i); | |
6197 | map2 = get_imsm_map(dev, 1); | |
6198 | /* Copy the current map */ | |
1dfaa380 | 6199 | memcpy(map2, map, copy_map_size); |
0e2d1a4e AK |
6200 | map2->num_members = prev_num_members; |
6201 | ||
70bdf0dc | 6202 | imsm_set_array_size(dev); |
0e2d1a4e AK |
6203 | super->updates_pending++; |
6204 | } | |
6205 | } | |
6206 | ||
aad6f216 | 6207 | /* Handle dirty -> clean transititions, resync and reshape. Degraded and rebuild |
0c046afd DW |
6208 | * states are handled in imsm_set_disk() with one exception, when a |
6209 | * resync is stopped due to a new failure this routine will set the | |
6210 | * 'degraded' state for the array. | |
6211 | */ | |
01f157d7 | 6212 | static int imsm_set_array_state(struct active_array *a, int consistent) |
a862209d DW |
6213 | { |
6214 | int inst = a->info.container_member; | |
6215 | struct intel_super *super = a->container->sb; | |
949c47a0 | 6216 | struct imsm_dev *dev = get_imsm_dev(super, inst); |
a965f303 | 6217 | struct imsm_map *map = get_imsm_map(dev, 0); |
0c046afd DW |
6218 | int failed = imsm_count_failed(super, dev); |
6219 | __u8 map_state = imsm_check_degraded(super, dev, failed); | |
1e5c6983 | 6220 | __u32 blocks_per_unit; |
a862209d | 6221 | |
1af97990 AK |
6222 | if (dev->vol.migr_state && |
6223 | dev->vol.migr_type == MIGR_GEN_MIGR) { | |
6224 | /* array state change is blocked due to reshape action | |
aad6f216 N |
6225 | * We might need to |
6226 | * - abort the reshape (if last_checkpoint is 0 and action!= reshape) | |
6227 | * - finish the reshape (if last_checkpoint is big and action != reshape) | |
6228 | * - update curr_migr_unit | |
1af97990 | 6229 | */ |
aad6f216 N |
6230 | if (a->curr_action == reshape) { |
6231 | /* still reshaping, maybe update curr_migr_unit */ | |
633b5610 | 6232 | goto mark_checkpoint; |
aad6f216 N |
6233 | } else { |
6234 | if (a->last_checkpoint == 0 && a->prev_action == reshape) { | |
6235 | /* for some reason we aborted the reshape. | |
b66e591b AK |
6236 | * |
6237 | * disable automatic metadata rollback | |
6238 | * user action is required to recover process | |
aad6f216 | 6239 | */ |
b66e591b | 6240 | if (0) { |
aad6f216 N |
6241 | struct imsm_map *map2 = get_imsm_map(dev, 1); |
6242 | dev->vol.migr_state = 0; | |
ea672ee1 | 6243 | set_migr_type(dev, 0); |
aad6f216 N |
6244 | dev->vol.curr_migr_unit = 0; |
6245 | memcpy(map, map2, sizeof_imsm_map(map2)); | |
6246 | super->updates_pending++; | |
b66e591b | 6247 | } |
aad6f216 N |
6248 | } |
6249 | if (a->last_checkpoint >= a->info.component_size) { | |
6250 | unsigned long long array_blocks; | |
6251 | int used_disks; | |
e154ced3 | 6252 | struct mdinfo *mdi; |
aad6f216 | 6253 | |
9653001d | 6254 | used_disks = imsm_num_data_members(dev, 0); |
d55adef9 AK |
6255 | if (used_disks > 0) { |
6256 | array_blocks = | |
6257 | map->blocks_per_member * | |
6258 | used_disks; | |
6259 | /* round array size down to closest MB | |
6260 | */ | |
6261 | array_blocks = (array_blocks | |
6262 | >> SECT_PER_MB_SHIFT) | |
6263 | << SECT_PER_MB_SHIFT; | |
d55adef9 AK |
6264 | a->info.custom_array_size = array_blocks; |
6265 | /* encourage manager to update array | |
6266 | * size | |
6267 | */ | |
e154ced3 | 6268 | |
d55adef9 | 6269 | a->check_reshape = 1; |
633b5610 | 6270 | } |
e154ced3 AK |
6271 | /* finalize online capacity expansion/reshape */ |
6272 | for (mdi = a->info.devs; mdi; mdi = mdi->next) | |
6273 | imsm_set_disk(a, | |
6274 | mdi->disk.raid_disk, | |
6275 | mdi->curr_state); | |
6276 | ||
0e2d1a4e | 6277 | imsm_progress_container_reshape(super); |
e154ced3 | 6278 | } |
aad6f216 | 6279 | } |
1af97990 AK |
6280 | } |
6281 | ||
47ee5a45 | 6282 | /* before we activate this array handle any missing disks */ |
33414a01 DW |
6283 | if (consistent == 2) |
6284 | handle_missing(super, dev); | |
1e5c6983 | 6285 | |
0c046afd | 6286 | if (consistent == 2 && |
b7941fd6 | 6287 | (!is_resync_complete(&a->info) || |
0c046afd DW |
6288 | map_state != IMSM_T_STATE_NORMAL || |
6289 | dev->vol.migr_state)) | |
01f157d7 | 6290 | consistent = 0; |
272906ef | 6291 | |
b7941fd6 | 6292 | if (is_resync_complete(&a->info)) { |
0c046afd | 6293 | /* complete intialization / resync, |
0556e1a2 DW |
6294 | * recovery and interrupted recovery is completed in |
6295 | * ->set_disk | |
0c046afd DW |
6296 | */ |
6297 | if (is_resyncing(dev)) { | |
6298 | dprintf("imsm: mark resync done\n"); | |
f8f603f1 | 6299 | end_migration(dev, map_state); |
115c3803 | 6300 | super->updates_pending++; |
484240d8 | 6301 | a->last_checkpoint = 0; |
115c3803 | 6302 | } |
b9172665 AK |
6303 | } else if ((!is_resyncing(dev) && !failed) && |
6304 | (imsm_reshape_blocks_arrays_changes(super) == 0)) { | |
0c046afd | 6305 | /* mark the start of the init process if nothing is failed */ |
b7941fd6 | 6306 | dprintf("imsm: mark resync start\n"); |
1484e727 | 6307 | if (map->map_state == IMSM_T_STATE_UNINITIALIZED) |
8e59f3d8 | 6308 | migrate(dev, super, IMSM_T_STATE_NORMAL, MIGR_INIT); |
1484e727 | 6309 | else |
8e59f3d8 | 6310 | migrate(dev, super, IMSM_T_STATE_NORMAL, MIGR_REPAIR); |
3393c6af | 6311 | super->updates_pending++; |
115c3803 | 6312 | } |
a862209d | 6313 | |
633b5610 | 6314 | mark_checkpoint: |
5b83bacf AK |
6315 | /* skip checkpointing for general migration, |
6316 | * it is controlled in mdadm | |
6317 | */ | |
6318 | if (is_gen_migration(dev)) | |
6319 | goto skip_mark_checkpoint; | |
6320 | ||
1e5c6983 | 6321 | /* check if we can update curr_migr_unit from resync_start, recovery_start */ |
c47b0ff6 | 6322 | blocks_per_unit = blocks_per_migr_unit(super, dev); |
4f0a7acc | 6323 | if (blocks_per_unit) { |
1e5c6983 DW |
6324 | __u32 units32; |
6325 | __u64 units; | |
6326 | ||
4f0a7acc | 6327 | units = a->last_checkpoint / blocks_per_unit; |
1e5c6983 DW |
6328 | units32 = units; |
6329 | ||
6330 | /* check that we did not overflow 32-bits, and that | |
6331 | * curr_migr_unit needs updating | |
6332 | */ | |
6333 | if (units32 == units && | |
bfd80a56 | 6334 | units32 != 0 && |
1e5c6983 DW |
6335 | __le32_to_cpu(dev->vol.curr_migr_unit) != units32) { |
6336 | dprintf("imsm: mark checkpoint (%u)\n", units32); | |
6337 | dev->vol.curr_migr_unit = __cpu_to_le32(units32); | |
6338 | super->updates_pending++; | |
6339 | } | |
6340 | } | |
f8f603f1 | 6341 | |
5b83bacf | 6342 | skip_mark_checkpoint: |
3393c6af | 6343 | /* mark dirty / clean */ |
0c046afd | 6344 | if (dev->vol.dirty != !consistent) { |
b7941fd6 | 6345 | dprintf("imsm: mark '%s'\n", consistent ? "clean" : "dirty"); |
0c046afd DW |
6346 | if (consistent) |
6347 | dev->vol.dirty = 0; | |
6348 | else | |
6349 | dev->vol.dirty = 1; | |
a862209d DW |
6350 | super->updates_pending++; |
6351 | } | |
28bce06f | 6352 | |
01f157d7 | 6353 | return consistent; |
a862209d DW |
6354 | } |
6355 | ||
8d45d196 | 6356 | static void imsm_set_disk(struct active_array *a, int n, int state) |
845dea95 | 6357 | { |
8d45d196 DW |
6358 | int inst = a->info.container_member; |
6359 | struct intel_super *super = a->container->sb; | |
949c47a0 | 6360 | struct imsm_dev *dev = get_imsm_dev(super, inst); |
a965f303 | 6361 | struct imsm_map *map = get_imsm_map(dev, 0); |
8d45d196 | 6362 | struct imsm_disk *disk; |
0c046afd | 6363 | int failed; |
b10b37b8 | 6364 | __u32 ord; |
0c046afd | 6365 | __u8 map_state; |
8d45d196 DW |
6366 | |
6367 | if (n > map->num_members) | |
6368 | fprintf(stderr, "imsm: set_disk %d out of range 0..%d\n", | |
6369 | n, map->num_members - 1); | |
6370 | ||
6371 | if (n < 0) | |
6372 | return; | |
6373 | ||
4e6e574a | 6374 | dprintf("imsm: set_disk %d:%x\n", n, state); |
8d45d196 | 6375 | |
9535fc47 | 6376 | ord = get_imsm_ord_tbl_ent(dev, n, -2); |
b10b37b8 | 6377 | disk = get_imsm_disk(super, ord_to_idx(ord)); |
8d45d196 | 6378 | |
5802a811 | 6379 | /* check for new failures */ |
0556e1a2 DW |
6380 | if (state & DS_FAULTY) { |
6381 | if (mark_failure(dev, disk, ord_to_idx(ord))) | |
6382 | super->updates_pending++; | |
8d45d196 | 6383 | } |
47ee5a45 | 6384 | |
19859edc | 6385 | /* check if in_sync */ |
0556e1a2 | 6386 | if (state & DS_INSYNC && ord & IMSM_ORD_REBUILD && is_rebuilding(dev)) { |
b10b37b8 DW |
6387 | struct imsm_map *migr_map = get_imsm_map(dev, 1); |
6388 | ||
6389 | set_imsm_ord_tbl_ent(migr_map, n, ord_to_idx(ord)); | |
19859edc DW |
6390 | super->updates_pending++; |
6391 | } | |
8d45d196 | 6392 | |
0c046afd DW |
6393 | failed = imsm_count_failed(super, dev); |
6394 | map_state = imsm_check_degraded(super, dev, failed); | |
5802a811 | 6395 | |
0c046afd DW |
6396 | /* check if recovery complete, newly degraded, or failed */ |
6397 | if (map_state == IMSM_T_STATE_NORMAL && is_rebuilding(dev)) { | |
f8f603f1 | 6398 | end_migration(dev, map_state); |
0556e1a2 DW |
6399 | map = get_imsm_map(dev, 0); |
6400 | map->failed_disk_num = ~0; | |
0c046afd | 6401 | super->updates_pending++; |
484240d8 | 6402 | a->last_checkpoint = 0; |
0c046afd DW |
6403 | } else if (map_state == IMSM_T_STATE_DEGRADED && |
6404 | map->map_state != map_state && | |
6405 | !dev->vol.migr_state) { | |
6406 | dprintf("imsm: mark degraded\n"); | |
6407 | map->map_state = map_state; | |
6408 | super->updates_pending++; | |
484240d8 | 6409 | a->last_checkpoint = 0; |
0c046afd DW |
6410 | } else if (map_state == IMSM_T_STATE_FAILED && |
6411 | map->map_state != map_state) { | |
6412 | dprintf("imsm: mark failed\n"); | |
f8f603f1 | 6413 | end_migration(dev, map_state); |
0c046afd | 6414 | super->updates_pending++; |
484240d8 | 6415 | a->last_checkpoint = 0; |
28bce06f AK |
6416 | } else if (is_gen_migration(dev)) { |
6417 | dprintf("imsm: Detected General Migration in state: "); | |
bf2f0071 AK |
6418 | |
6419 | switch (map_state) { | |
6420 | case IMSM_T_STATE_NORMAL: | |
6421 | dprintf("normal\n"); | |
6422 | if (a->last_checkpoint >= a->info.component_size) | |
6423 | end_migration(dev, map_state); | |
28bce06f AK |
6424 | map = get_imsm_map(dev, 0); |
6425 | map->failed_disk_num = ~0; | |
bf2f0071 AK |
6426 | break; |
6427 | case IMSM_T_STATE_DEGRADED: | |
6428 | dprintf("degraded\n"); | |
6429 | if (a->last_checkpoint >= a->info.component_size) | |
28bce06f | 6430 | end_migration(dev, map_state); |
bf2f0071 AK |
6431 | break; |
6432 | default: | |
6433 | dprintf("failed\n"); | |
28bce06f | 6434 | } |
bf2f0071 | 6435 | map->map_state = map_state; |
28bce06f | 6436 | super->updates_pending++; |
5802a811 | 6437 | } |
845dea95 NB |
6438 | } |
6439 | ||
f796af5d | 6440 | static int store_imsm_mpb(int fd, struct imsm_super *mpb) |
c2a1e7da | 6441 | { |
f796af5d | 6442 | void *buf = mpb; |
c2a1e7da DW |
6443 | __u32 mpb_size = __le32_to_cpu(mpb->mpb_size); |
6444 | unsigned long long dsize; | |
6445 | unsigned long long sectors; | |
6446 | ||
6447 | get_dev_size(fd, NULL, &dsize); | |
6448 | ||
272f648f DW |
6449 | if (mpb_size > 512) { |
6450 | /* -1 to account for anchor */ | |
6451 | sectors = mpb_sectors(mpb) - 1; | |
c2a1e7da | 6452 | |
272f648f DW |
6453 | /* write the extended mpb to the sectors preceeding the anchor */ |
6454 | if (lseek64(fd, dsize - (512 * (2 + sectors)), SEEK_SET) < 0) | |
6455 | return 1; | |
c2a1e7da | 6456 | |
f21e18ca N |
6457 | if ((unsigned long long)write(fd, buf + 512, 512 * sectors) |
6458 | != 512 * sectors) | |
272f648f DW |
6459 | return 1; |
6460 | } | |
c2a1e7da | 6461 | |
272f648f DW |
6462 | /* first block is stored on second to last sector of the disk */ |
6463 | if (lseek64(fd, dsize - (512 * 2), SEEK_SET) < 0) | |
c2a1e7da DW |
6464 | return 1; |
6465 | ||
f796af5d | 6466 | if (write(fd, buf, 512) != 512) |
c2a1e7da DW |
6467 | return 1; |
6468 | ||
c2a1e7da DW |
6469 | return 0; |
6470 | } | |
6471 | ||
2e735d19 | 6472 | static void imsm_sync_metadata(struct supertype *container) |
845dea95 | 6473 | { |
2e735d19 | 6474 | struct intel_super *super = container->sb; |
c2a1e7da | 6475 | |
1a64be56 | 6476 | dprintf("sync metadata: %d\n", super->updates_pending); |
c2a1e7da DW |
6477 | if (!super->updates_pending) |
6478 | return; | |
6479 | ||
36988a3d | 6480 | write_super_imsm(container, 0); |
c2a1e7da DW |
6481 | |
6482 | super->updates_pending = 0; | |
845dea95 NB |
6483 | } |
6484 | ||
272906ef DW |
6485 | static struct dl *imsm_readd(struct intel_super *super, int idx, struct active_array *a) |
6486 | { | |
6487 | struct imsm_dev *dev = get_imsm_dev(super, a->info.container_member); | |
98130f40 | 6488 | int i = get_imsm_disk_idx(dev, idx, -1); |
272906ef DW |
6489 | struct dl *dl; |
6490 | ||
6491 | for (dl = super->disks; dl; dl = dl->next) | |
6492 | if (dl->index == i) | |
6493 | break; | |
6494 | ||
25ed7e59 | 6495 | if (dl && is_failed(&dl->disk)) |
272906ef DW |
6496 | dl = NULL; |
6497 | ||
6498 | if (dl) | |
6499 | dprintf("%s: found %x:%x\n", __func__, dl->major, dl->minor); | |
6500 | ||
6501 | return dl; | |
6502 | } | |
6503 | ||
a20d2ba5 | 6504 | static struct dl *imsm_add_spare(struct intel_super *super, int slot, |
8ba77d32 AK |
6505 | struct active_array *a, int activate_new, |
6506 | struct mdinfo *additional_test_list) | |
272906ef DW |
6507 | { |
6508 | struct imsm_dev *dev = get_imsm_dev(super, a->info.container_member); | |
98130f40 | 6509 | int idx = get_imsm_disk_idx(dev, slot, -1); |
a20d2ba5 DW |
6510 | struct imsm_super *mpb = super->anchor; |
6511 | struct imsm_map *map; | |
272906ef DW |
6512 | unsigned long long pos; |
6513 | struct mdinfo *d; | |
6514 | struct extent *ex; | |
a20d2ba5 | 6515 | int i, j; |
272906ef | 6516 | int found; |
569cc43f DW |
6517 | __u32 array_start = 0; |
6518 | __u32 array_end = 0; | |
272906ef | 6519 | struct dl *dl; |
6c932028 | 6520 | struct mdinfo *test_list; |
272906ef DW |
6521 | |
6522 | for (dl = super->disks; dl; dl = dl->next) { | |
6523 | /* If in this array, skip */ | |
6524 | for (d = a->info.devs ; d ; d = d->next) | |
e553d2a4 DW |
6525 | if (d->state_fd >= 0 && |
6526 | d->disk.major == dl->major && | |
272906ef | 6527 | d->disk.minor == dl->minor) { |
8ba77d32 AK |
6528 | dprintf("%x:%x already in array\n", |
6529 | dl->major, dl->minor); | |
272906ef DW |
6530 | break; |
6531 | } | |
6532 | if (d) | |
6533 | continue; | |
6c932028 AK |
6534 | test_list = additional_test_list; |
6535 | while (test_list) { | |
6536 | if (test_list->disk.major == dl->major && | |
6537 | test_list->disk.minor == dl->minor) { | |
8ba77d32 AK |
6538 | dprintf("%x:%x already in additional test list\n", |
6539 | dl->major, dl->minor); | |
6540 | break; | |
6541 | } | |
6c932028 | 6542 | test_list = test_list->next; |
8ba77d32 | 6543 | } |
6c932028 | 6544 | if (test_list) |
8ba77d32 | 6545 | continue; |
272906ef | 6546 | |
e553d2a4 | 6547 | /* skip in use or failed drives */ |
25ed7e59 | 6548 | if (is_failed(&dl->disk) || idx == dl->index || |
df474657 DW |
6549 | dl->index == -2) { |
6550 | dprintf("%x:%x status (failed: %d index: %d)\n", | |
25ed7e59 | 6551 | dl->major, dl->minor, is_failed(&dl->disk), idx); |
9a1608e5 DW |
6552 | continue; |
6553 | } | |
6554 | ||
a20d2ba5 DW |
6555 | /* skip pure spares when we are looking for partially |
6556 | * assimilated drives | |
6557 | */ | |
6558 | if (dl->index == -1 && !activate_new) | |
6559 | continue; | |
6560 | ||
272906ef | 6561 | /* Does this unused device have the requisite free space? |
a20d2ba5 | 6562 | * It needs to be able to cover all member volumes |
272906ef DW |
6563 | */ |
6564 | ex = get_extents(super, dl); | |
6565 | if (!ex) { | |
6566 | dprintf("cannot get extents\n"); | |
6567 | continue; | |
6568 | } | |
a20d2ba5 DW |
6569 | for (i = 0; i < mpb->num_raid_devs; i++) { |
6570 | dev = get_imsm_dev(super, i); | |
6571 | map = get_imsm_map(dev, 0); | |
272906ef | 6572 | |
a20d2ba5 DW |
6573 | /* check if this disk is already a member of |
6574 | * this array | |
272906ef | 6575 | */ |
620b1713 | 6576 | if (get_imsm_disk_slot(map, dl->index) >= 0) |
a20d2ba5 DW |
6577 | continue; |
6578 | ||
6579 | found = 0; | |
6580 | j = 0; | |
6581 | pos = 0; | |
6582 | array_start = __le32_to_cpu(map->pba_of_lba0); | |
329c8278 DW |
6583 | array_end = array_start + |
6584 | __le32_to_cpu(map->blocks_per_member) - 1; | |
a20d2ba5 DW |
6585 | |
6586 | do { | |
6587 | /* check that we can start at pba_of_lba0 with | |
6588 | * blocks_per_member of space | |
6589 | */ | |
329c8278 | 6590 | if (array_start >= pos && array_end < ex[j].start) { |
a20d2ba5 DW |
6591 | found = 1; |
6592 | break; | |
6593 | } | |
6594 | pos = ex[j].start + ex[j].size; | |
6595 | j++; | |
6596 | } while (ex[j-1].size); | |
6597 | ||
6598 | if (!found) | |
272906ef | 6599 | break; |
a20d2ba5 | 6600 | } |
272906ef DW |
6601 | |
6602 | free(ex); | |
a20d2ba5 | 6603 | if (i < mpb->num_raid_devs) { |
329c8278 DW |
6604 | dprintf("%x:%x does not have %u to %u available\n", |
6605 | dl->major, dl->minor, array_start, array_end); | |
272906ef DW |
6606 | /* No room */ |
6607 | continue; | |
a20d2ba5 DW |
6608 | } |
6609 | return dl; | |
272906ef DW |
6610 | } |
6611 | ||
6612 | return dl; | |
6613 | } | |
6614 | ||
95d07a2c LM |
6615 | |
6616 | static int imsm_rebuild_allowed(struct supertype *cont, int dev_idx, int failed) | |
6617 | { | |
6618 | struct imsm_dev *dev2; | |
6619 | struct imsm_map *map; | |
6620 | struct dl *idisk; | |
6621 | int slot; | |
6622 | int idx; | |
6623 | __u8 state; | |
6624 | ||
6625 | dev2 = get_imsm_dev(cont->sb, dev_idx); | |
6626 | if (dev2) { | |
6627 | state = imsm_check_degraded(cont->sb, dev2, failed); | |
6628 | if (state == IMSM_T_STATE_FAILED) { | |
6629 | map = get_imsm_map(dev2, 0); | |
6630 | if (!map) | |
6631 | return 1; | |
6632 | for (slot = 0; slot < map->num_members; slot++) { | |
6633 | /* | |
6634 | * Check if failed disks are deleted from intel | |
6635 | * disk list or are marked to be deleted | |
6636 | */ | |
98130f40 | 6637 | idx = get_imsm_disk_idx(dev2, slot, -1); |
95d07a2c LM |
6638 | idisk = get_imsm_dl_disk(cont->sb, idx); |
6639 | /* | |
6640 | * Do not rebuild the array if failed disks | |
6641 | * from failed sub-array are not removed from | |
6642 | * container. | |
6643 | */ | |
6644 | if (idisk && | |
6645 | is_failed(&idisk->disk) && | |
6646 | (idisk->action != DISK_REMOVE)) | |
6647 | return 0; | |
6648 | } | |
6649 | } | |
6650 | } | |
6651 | return 1; | |
6652 | } | |
6653 | ||
88758e9d DW |
6654 | static struct mdinfo *imsm_activate_spare(struct active_array *a, |
6655 | struct metadata_update **updates) | |
6656 | { | |
6657 | /** | |
d23fe947 DW |
6658 | * Find a device with unused free space and use it to replace a |
6659 | * failed/vacant region in an array. We replace failed regions one a | |
6660 | * array at a time. The result is that a new spare disk will be added | |
6661 | * to the first failed array and after the monitor has finished | |
6662 | * propagating failures the remainder will be consumed. | |
88758e9d | 6663 | * |
d23fe947 DW |
6664 | * FIXME add a capability for mdmon to request spares from another |
6665 | * container. | |
88758e9d DW |
6666 | */ |
6667 | ||
6668 | struct intel_super *super = a->container->sb; | |
88758e9d | 6669 | int inst = a->info.container_member; |
949c47a0 | 6670 | struct imsm_dev *dev = get_imsm_dev(super, inst); |
a965f303 | 6671 | struct imsm_map *map = get_imsm_map(dev, 0); |
88758e9d DW |
6672 | int failed = a->info.array.raid_disks; |
6673 | struct mdinfo *rv = NULL; | |
6674 | struct mdinfo *d; | |
6675 | struct mdinfo *di; | |
6676 | struct metadata_update *mu; | |
6677 | struct dl *dl; | |
6678 | struct imsm_update_activate_spare *u; | |
6679 | int num_spares = 0; | |
6680 | int i; | |
95d07a2c | 6681 | int allowed; |
88758e9d DW |
6682 | |
6683 | for (d = a->info.devs ; d ; d = d->next) { | |
6684 | if ((d->curr_state & DS_FAULTY) && | |
6685 | d->state_fd >= 0) | |
6686 | /* wait for Removal to happen */ | |
6687 | return NULL; | |
6688 | if (d->state_fd >= 0) | |
6689 | failed--; | |
6690 | } | |
6691 | ||
6692 | dprintf("imsm: activate spare: inst=%d failed=%d (%d) level=%d\n", | |
6693 | inst, failed, a->info.array.raid_disks, a->info.array.level); | |
1af97990 | 6694 | |
e2962bfc AK |
6695 | if (imsm_reshape_blocks_arrays_changes(super)) |
6696 | return NULL; | |
1af97990 | 6697 | |
89c67882 AK |
6698 | if (a->info.array.level == 4) |
6699 | /* No repair for takeovered array | |
6700 | * imsm doesn't support raid4 | |
6701 | */ | |
6702 | return NULL; | |
6703 | ||
fb49eef2 | 6704 | if (imsm_check_degraded(super, dev, failed) != IMSM_T_STATE_DEGRADED) |
88758e9d DW |
6705 | return NULL; |
6706 | ||
95d07a2c LM |
6707 | /* |
6708 | * If there are any failed disks check state of the other volume. | |
6709 | * Block rebuild if the another one is failed until failed disks | |
6710 | * are removed from container. | |
6711 | */ | |
6712 | if (failed) { | |
c4acd1e5 | 6713 | dprintf("found failed disks in %.*s, check if there another" |
95d07a2c | 6714 | "failed sub-array.\n", |
c4acd1e5 | 6715 | MAX_RAID_SERIAL_LEN, dev->volume); |
95d07a2c LM |
6716 | /* check if states of the other volumes allow for rebuild */ |
6717 | for (i = 0; i < super->anchor->num_raid_devs; i++) { | |
6718 | if (i != inst) { | |
6719 | allowed = imsm_rebuild_allowed(a->container, | |
6720 | i, failed); | |
6721 | if (!allowed) | |
6722 | return NULL; | |
6723 | } | |
6724 | } | |
6725 | } | |
6726 | ||
88758e9d | 6727 | /* For each slot, if it is not working, find a spare */ |
88758e9d DW |
6728 | for (i = 0; i < a->info.array.raid_disks; i++) { |
6729 | for (d = a->info.devs ; d ; d = d->next) | |
6730 | if (d->disk.raid_disk == i) | |
6731 | break; | |
6732 | dprintf("found %d: %p %x\n", i, d, d?d->curr_state:0); | |
6733 | if (d && (d->state_fd >= 0)) | |
6734 | continue; | |
6735 | ||
272906ef | 6736 | /* |
a20d2ba5 DW |
6737 | * OK, this device needs recovery. Try to re-add the |
6738 | * previous occupant of this slot, if this fails see if | |
6739 | * we can continue the assimilation of a spare that was | |
6740 | * partially assimilated, finally try to activate a new | |
6741 | * spare. | |
272906ef DW |
6742 | */ |
6743 | dl = imsm_readd(super, i, a); | |
6744 | if (!dl) | |
b303fe21 | 6745 | dl = imsm_add_spare(super, i, a, 0, rv); |
a20d2ba5 | 6746 | if (!dl) |
b303fe21 | 6747 | dl = imsm_add_spare(super, i, a, 1, rv); |
272906ef DW |
6748 | if (!dl) |
6749 | continue; | |
6750 | ||
6751 | /* found a usable disk with enough space */ | |
6752 | di = malloc(sizeof(*di)); | |
79244939 DW |
6753 | if (!di) |
6754 | continue; | |
272906ef DW |
6755 | memset(di, 0, sizeof(*di)); |
6756 | ||
6757 | /* dl->index will be -1 in the case we are activating a | |
6758 | * pristine spare. imsm_process_update() will create a | |
6759 | * new index in this case. Once a disk is found to be | |
6760 | * failed in all member arrays it is kicked from the | |
6761 | * metadata | |
6762 | */ | |
6763 | di->disk.number = dl->index; | |
d23fe947 | 6764 | |
272906ef DW |
6765 | /* (ab)use di->devs to store a pointer to the device |
6766 | * we chose | |
6767 | */ | |
6768 | di->devs = (struct mdinfo *) dl; | |
6769 | ||
6770 | di->disk.raid_disk = i; | |
6771 | di->disk.major = dl->major; | |
6772 | di->disk.minor = dl->minor; | |
6773 | di->disk.state = 0; | |
d23534e4 | 6774 | di->recovery_start = 0; |
272906ef DW |
6775 | di->data_offset = __le32_to_cpu(map->pba_of_lba0); |
6776 | di->component_size = a->info.component_size; | |
6777 | di->container_member = inst; | |
148acb7b | 6778 | super->random = random32(); |
272906ef DW |
6779 | di->next = rv; |
6780 | rv = di; | |
6781 | num_spares++; | |
6782 | dprintf("%x:%x to be %d at %llu\n", dl->major, dl->minor, | |
6783 | i, di->data_offset); | |
88758e9d DW |
6784 | } |
6785 | ||
6786 | if (!rv) | |
6787 | /* No spares found */ | |
6788 | return rv; | |
6789 | /* Now 'rv' has a list of devices to return. | |
6790 | * Create a metadata_update record to update the | |
6791 | * disk_ord_tbl for the array | |
6792 | */ | |
6793 | mu = malloc(sizeof(*mu)); | |
79244939 DW |
6794 | if (mu) { |
6795 | mu->buf = malloc(sizeof(struct imsm_update_activate_spare) * num_spares); | |
6796 | if (mu->buf == NULL) { | |
6797 | free(mu); | |
6798 | mu = NULL; | |
6799 | } | |
6800 | } | |
6801 | if (!mu) { | |
6802 | while (rv) { | |
6803 | struct mdinfo *n = rv->next; | |
6804 | ||
6805 | free(rv); | |
6806 | rv = n; | |
6807 | } | |
6808 | return NULL; | |
6809 | } | |
6810 | ||
88758e9d | 6811 | mu->space = NULL; |
cb23f1f4 | 6812 | mu->space_list = NULL; |
88758e9d DW |
6813 | mu->len = sizeof(struct imsm_update_activate_spare) * num_spares; |
6814 | mu->next = *updates; | |
6815 | u = (struct imsm_update_activate_spare *) mu->buf; | |
6816 | ||
6817 | for (di = rv ; di ; di = di->next) { | |
6818 | u->type = update_activate_spare; | |
d23fe947 DW |
6819 | u->dl = (struct dl *) di->devs; |
6820 | di->devs = NULL; | |
88758e9d DW |
6821 | u->slot = di->disk.raid_disk; |
6822 | u->array = inst; | |
6823 | u->next = u + 1; | |
6824 | u++; | |
6825 | } | |
6826 | (u-1)->next = NULL; | |
6827 | *updates = mu; | |
6828 | ||
6829 | return rv; | |
6830 | } | |
6831 | ||
54c2c1ea | 6832 | static int disks_overlap(struct intel_super *super, int idx, struct imsm_update_create_array *u) |
8273f55e | 6833 | { |
54c2c1ea DW |
6834 | struct imsm_dev *dev = get_imsm_dev(super, idx); |
6835 | struct imsm_map *map = get_imsm_map(dev, 0); | |
6836 | struct imsm_map *new_map = get_imsm_map(&u->dev, 0); | |
6837 | struct disk_info *inf = get_disk_info(u); | |
6838 | struct imsm_disk *disk; | |
8273f55e DW |
6839 | int i; |
6840 | int j; | |
8273f55e | 6841 | |
54c2c1ea | 6842 | for (i = 0; i < map->num_members; i++) { |
98130f40 | 6843 | disk = get_imsm_disk(super, get_imsm_disk_idx(dev, i, -1)); |
54c2c1ea DW |
6844 | for (j = 0; j < new_map->num_members; j++) |
6845 | if (serialcmp(disk->serial, inf[j].serial) == 0) | |
8273f55e DW |
6846 | return 1; |
6847 | } | |
6848 | ||
6849 | return 0; | |
6850 | } | |
6851 | ||
1a64be56 LM |
6852 | |
6853 | static struct dl *get_disk_super(struct intel_super *super, int major, int minor) | |
6854 | { | |
6855 | struct dl *dl = NULL; | |
6856 | for (dl = super->disks; dl; dl = dl->next) | |
6857 | if ((dl->major == major) && (dl->minor == minor)) | |
6858 | return dl; | |
6859 | return NULL; | |
6860 | } | |
6861 | ||
6862 | static int remove_disk_super(struct intel_super *super, int major, int minor) | |
6863 | { | |
6864 | struct dl *prev = NULL; | |
6865 | struct dl *dl; | |
6866 | ||
6867 | prev = NULL; | |
6868 | for (dl = super->disks; dl; dl = dl->next) { | |
6869 | if ((dl->major == major) && (dl->minor == minor)) { | |
6870 | /* remove */ | |
6871 | if (prev) | |
6872 | prev->next = dl->next; | |
6873 | else | |
6874 | super->disks = dl->next; | |
6875 | dl->next = NULL; | |
6876 | __free_imsm_disk(dl); | |
6877 | dprintf("%s: removed %x:%x\n", | |
6878 | __func__, major, minor); | |
6879 | break; | |
6880 | } | |
6881 | prev = dl; | |
6882 | } | |
6883 | return 0; | |
6884 | } | |
6885 | ||
f21e18ca | 6886 | static void imsm_delete(struct intel_super *super, struct dl **dlp, unsigned index); |
ae6aad82 | 6887 | |
1a64be56 LM |
6888 | static int add_remove_disk_update(struct intel_super *super) |
6889 | { | |
6890 | int check_degraded = 0; | |
6891 | struct dl *disk = NULL; | |
6892 | /* add/remove some spares to/from the metadata/contrainer */ | |
6893 | while (super->disk_mgmt_list) { | |
6894 | struct dl *disk_cfg; | |
6895 | ||
6896 | disk_cfg = super->disk_mgmt_list; | |
6897 | super->disk_mgmt_list = disk_cfg->next; | |
6898 | disk_cfg->next = NULL; | |
6899 | ||
6900 | if (disk_cfg->action == DISK_ADD) { | |
6901 | disk_cfg->next = super->disks; | |
6902 | super->disks = disk_cfg; | |
6903 | check_degraded = 1; | |
6904 | dprintf("%s: added %x:%x\n", | |
6905 | __func__, disk_cfg->major, | |
6906 | disk_cfg->minor); | |
6907 | } else if (disk_cfg->action == DISK_REMOVE) { | |
6908 | dprintf("Disk remove action processed: %x.%x\n", | |
6909 | disk_cfg->major, disk_cfg->minor); | |
6910 | disk = get_disk_super(super, | |
6911 | disk_cfg->major, | |
6912 | disk_cfg->minor); | |
6913 | if (disk) { | |
6914 | /* store action status */ | |
6915 | disk->action = DISK_REMOVE; | |
6916 | /* remove spare disks only */ | |
6917 | if (disk->index == -1) { | |
6918 | remove_disk_super(super, | |
6919 | disk_cfg->major, | |
6920 | disk_cfg->minor); | |
6921 | } | |
6922 | } | |
6923 | /* release allocate disk structure */ | |
6924 | __free_imsm_disk(disk_cfg); | |
6925 | } | |
6926 | } | |
6927 | return check_degraded; | |
6928 | } | |
6929 | ||
a29911da PC |
6930 | |
6931 | static int apply_reshape_migration_update(struct imsm_update_reshape_migration *u, | |
6932 | struct intel_super *super, | |
6933 | void ***space_list) | |
6934 | { | |
6935 | struct intel_dev *id; | |
6936 | void **tofree = NULL; | |
6937 | int ret_val = 0; | |
6938 | ||
6939 | dprintf("apply_reshape_migration_update()\n"); | |
6940 | if ((u->subdev < 0) || | |
6941 | (u->subdev > 1)) { | |
6942 | dprintf("imsm: Error: Wrong subdev: %i\n", u->subdev); | |
6943 | return ret_val; | |
6944 | } | |
6945 | if ((space_list == NULL) || (*space_list == NULL)) { | |
6946 | dprintf("imsm: Error: Memory is not allocated\n"); | |
6947 | return ret_val; | |
6948 | } | |
6949 | ||
6950 | for (id = super->devlist ; id; id = id->next) { | |
6951 | if (id->index == (unsigned)u->subdev) { | |
6952 | struct imsm_dev *dev = get_imsm_dev(super, u->subdev); | |
6953 | struct imsm_map *map; | |
6954 | struct imsm_dev *new_dev = | |
6955 | (struct imsm_dev *)*space_list; | |
6956 | struct imsm_map *migr_map = get_imsm_map(dev, 1); | |
6957 | int to_state; | |
6958 | struct dl *new_disk; | |
6959 | ||
6960 | if (new_dev == NULL) | |
6961 | return ret_val; | |
6962 | *space_list = **space_list; | |
6963 | memcpy(new_dev, dev, sizeof_imsm_dev(dev, 0)); | |
6964 | map = get_imsm_map(new_dev, 0); | |
6965 | if (migr_map) { | |
6966 | dprintf("imsm: Error: migration in progress"); | |
6967 | return ret_val; | |
6968 | } | |
6969 | ||
6970 | to_state = map->map_state; | |
6971 | if ((u->new_level == 5) && (map->raid_level == 0)) { | |
6972 | map->num_members++; | |
6973 | /* this should not happen */ | |
6974 | if (u->new_disks[0] < 0) { | |
6975 | map->failed_disk_num = | |
6976 | map->num_members - 1; | |
6977 | to_state = IMSM_T_STATE_DEGRADED; | |
6978 | } else | |
6979 | to_state = IMSM_T_STATE_NORMAL; | |
6980 | } | |
8e59f3d8 | 6981 | migrate(new_dev, super, to_state, MIGR_GEN_MIGR); |
a29911da PC |
6982 | if (u->new_level > -1) |
6983 | map->raid_level = u->new_level; | |
6984 | migr_map = get_imsm_map(new_dev, 1); | |
6985 | if ((u->new_level == 5) && | |
6986 | (migr_map->raid_level == 0)) { | |
6987 | int ord = map->num_members - 1; | |
6988 | migr_map->num_members--; | |
6989 | if (u->new_disks[0] < 0) | |
6990 | ord |= IMSM_ORD_REBUILD; | |
6991 | set_imsm_ord_tbl_ent(map, | |
6992 | map->num_members - 1, | |
6993 | ord); | |
6994 | } | |
6995 | id->dev = new_dev; | |
6996 | tofree = (void **)dev; | |
6997 | ||
4bba0439 PC |
6998 | /* update chunk size |
6999 | */ | |
7000 | if (u->new_chunksize > 0) | |
7001 | map->blocks_per_strip = | |
7002 | __cpu_to_le16(u->new_chunksize * 2); | |
7003 | ||
a29911da PC |
7004 | /* add disk |
7005 | */ | |
7006 | if ((u->new_level != 5) || | |
7007 | (migr_map->raid_level != 0) || | |
7008 | (migr_map->raid_level == map->raid_level)) | |
7009 | goto skip_disk_add; | |
7010 | ||
7011 | if (u->new_disks[0] >= 0) { | |
7012 | /* use passes spare | |
7013 | */ | |
7014 | new_disk = get_disk_super(super, | |
7015 | major(u->new_disks[0]), | |
7016 | minor(u->new_disks[0])); | |
7017 | dprintf("imsm: new disk for reshape is: %i:%i " | |
7018 | "(%p, index = %i)\n", | |
7019 | major(u->new_disks[0]), | |
7020 | minor(u->new_disks[0]), | |
7021 | new_disk, new_disk->index); | |
7022 | if (new_disk == NULL) | |
7023 | goto error_disk_add; | |
7024 | ||
7025 | new_disk->index = map->num_members - 1; | |
7026 | /* slot to fill in autolayout | |
7027 | */ | |
7028 | new_disk->raiddisk = new_disk->index; | |
7029 | new_disk->disk.status |= CONFIGURED_DISK; | |
7030 | new_disk->disk.status &= ~SPARE_DISK; | |
7031 | } else | |
7032 | goto error_disk_add; | |
7033 | ||
7034 | skip_disk_add: | |
7035 | *tofree = *space_list; | |
7036 | /* calculate new size | |
7037 | */ | |
7038 | imsm_set_array_size(new_dev); | |
7039 | ||
7040 | ret_val = 1; | |
7041 | } | |
7042 | } | |
7043 | ||
7044 | if (tofree) | |
7045 | *space_list = tofree; | |
7046 | return ret_val; | |
7047 | ||
7048 | error_disk_add: | |
7049 | dprintf("Error: imsm: Cannot find disk.\n"); | |
7050 | return ret_val; | |
7051 | } | |
7052 | ||
061d7da3 LO |
7053 | static int apply_update_activate_spare(struct imsm_update_activate_spare *u, |
7054 | struct intel_super *super, | |
7055 | struct active_array *active_array) | |
7056 | { | |
7057 | struct imsm_super *mpb = super->anchor; | |
7058 | struct imsm_dev *dev = get_imsm_dev(super, u->array); | |
7059 | struct imsm_map *map = get_imsm_map(dev, 0); | |
7060 | struct imsm_map *migr_map; | |
7061 | struct active_array *a; | |
7062 | struct imsm_disk *disk; | |
7063 | __u8 to_state; | |
7064 | struct dl *dl; | |
7065 | unsigned int found; | |
7066 | int failed; | |
5961eeec | 7067 | int victim; |
061d7da3 | 7068 | int i; |
5961eeec | 7069 | int second_map_created = 0; |
061d7da3 | 7070 | |
5961eeec | 7071 | for (; u; u = u->next) { |
7072 | victim = get_imsm_disk_idx(dev, u->slot, -1); | |
061d7da3 | 7073 | |
5961eeec | 7074 | if (victim < 0) |
7075 | return 0; | |
061d7da3 | 7076 | |
5961eeec | 7077 | for (dl = super->disks; dl; dl = dl->next) |
7078 | if (dl == u->dl) | |
7079 | break; | |
061d7da3 | 7080 | |
5961eeec | 7081 | if (!dl) { |
7082 | fprintf(stderr, "error: imsm_activate_spare passed " | |
7083 | "an unknown disk (index: %d)\n", | |
7084 | u->dl->index); | |
7085 | return 0; | |
7086 | } | |
061d7da3 | 7087 | |
5961eeec | 7088 | /* count failures (excluding rebuilds and the victim) |
7089 | * to determine map[0] state | |
7090 | */ | |
7091 | failed = 0; | |
7092 | for (i = 0; i < map->num_members; i++) { | |
7093 | if (i == u->slot) | |
7094 | continue; | |
7095 | disk = get_imsm_disk(super, | |
7096 | get_imsm_disk_idx(dev, i, -1)); | |
7097 | if (!disk || is_failed(disk)) | |
7098 | failed++; | |
7099 | } | |
061d7da3 | 7100 | |
5961eeec | 7101 | /* adding a pristine spare, assign a new index */ |
7102 | if (dl->index < 0) { | |
7103 | dl->index = super->anchor->num_disks; | |
7104 | super->anchor->num_disks++; | |
7105 | } | |
7106 | disk = &dl->disk; | |
7107 | disk->status |= CONFIGURED_DISK; | |
7108 | disk->status &= ~SPARE_DISK; | |
7109 | ||
7110 | /* mark rebuild */ | |
7111 | to_state = imsm_check_degraded(super, dev, failed); | |
7112 | if (!second_map_created) { | |
7113 | second_map_created = 1; | |
7114 | map->map_state = IMSM_T_STATE_DEGRADED; | |
7115 | migrate(dev, super, to_state, MIGR_REBUILD); | |
7116 | } else | |
7117 | map->map_state = to_state; | |
7118 | migr_map = get_imsm_map(dev, 1); | |
7119 | set_imsm_ord_tbl_ent(map, u->slot, dl->index); | |
7120 | set_imsm_ord_tbl_ent(migr_map, u->slot, | |
7121 | dl->index | IMSM_ORD_REBUILD); | |
7122 | ||
7123 | /* update the family_num to mark a new container | |
7124 | * generation, being careful to record the existing | |
7125 | * family_num in orig_family_num to clean up after | |
7126 | * earlier mdadm versions that neglected to set it. | |
7127 | */ | |
7128 | if (mpb->orig_family_num == 0) | |
7129 | mpb->orig_family_num = mpb->family_num; | |
7130 | mpb->family_num += super->random; | |
7131 | ||
7132 | /* count arrays using the victim in the metadata */ | |
7133 | found = 0; | |
7134 | for (a = active_array; a ; a = a->next) { | |
7135 | dev = get_imsm_dev(super, a->info.container_member); | |
7136 | map = get_imsm_map(dev, 0); | |
061d7da3 | 7137 | |
5961eeec | 7138 | if (get_imsm_disk_slot(map, victim) >= 0) |
7139 | found++; | |
7140 | } | |
061d7da3 | 7141 | |
5961eeec | 7142 | /* delete the victim if it is no longer being |
7143 | * utilized anywhere | |
061d7da3 | 7144 | */ |
5961eeec | 7145 | if (!found) { |
7146 | struct dl **dlp; | |
061d7da3 | 7147 | |
5961eeec | 7148 | /* We know that 'manager' isn't touching anything, |
7149 | * so it is safe to delete | |
7150 | */ | |
7151 | for (dlp = &super->disks; *dlp; dlp = &(*dlp)->next) | |
061d7da3 LO |
7152 | if ((*dlp)->index == victim) |
7153 | break; | |
5961eeec | 7154 | |
7155 | /* victim may be on the missing list */ | |
7156 | if (!*dlp) | |
7157 | for (dlp = &super->missing; *dlp; | |
7158 | dlp = &(*dlp)->next) | |
7159 | if ((*dlp)->index == victim) | |
7160 | break; | |
7161 | imsm_delete(super, dlp, victim); | |
7162 | } | |
061d7da3 LO |
7163 | } |
7164 | ||
7165 | return 1; | |
7166 | } | |
a29911da | 7167 | |
2e5dc010 N |
7168 | static int apply_reshape_container_disks_update(struct imsm_update_reshape *u, |
7169 | struct intel_super *super, | |
7170 | void ***space_list) | |
7171 | { | |
7172 | struct dl *new_disk; | |
7173 | struct intel_dev *id; | |
7174 | int i; | |
7175 | int delta_disks = u->new_raid_disks - u->old_raid_disks; | |
ee4beede | 7176 | int disk_count = u->old_raid_disks; |
2e5dc010 N |
7177 | void **tofree = NULL; |
7178 | int devices_to_reshape = 1; | |
7179 | struct imsm_super *mpb = super->anchor; | |
7180 | int ret_val = 0; | |
d098291a | 7181 | unsigned int dev_id; |
2e5dc010 | 7182 | |
ed7333bd | 7183 | dprintf("imsm: apply_reshape_container_disks_update()\n"); |
2e5dc010 N |
7184 | |
7185 | /* enable spares to use in array */ | |
7186 | for (i = 0; i < delta_disks; i++) { | |
7187 | new_disk = get_disk_super(super, | |
7188 | major(u->new_disks[i]), | |
7189 | minor(u->new_disks[i])); | |
ed7333bd AK |
7190 | dprintf("imsm: new disk for reshape is: %i:%i " |
7191 | "(%p, index = %i)\n", | |
2e5dc010 N |
7192 | major(u->new_disks[i]), minor(u->new_disks[i]), |
7193 | new_disk, new_disk->index); | |
7194 | if ((new_disk == NULL) || | |
7195 | ((new_disk->index >= 0) && | |
7196 | (new_disk->index < u->old_raid_disks))) | |
7197 | goto update_reshape_exit; | |
ee4beede | 7198 | new_disk->index = disk_count++; |
2e5dc010 N |
7199 | /* slot to fill in autolayout |
7200 | */ | |
7201 | new_disk->raiddisk = new_disk->index; | |
7202 | new_disk->disk.status |= | |
7203 | CONFIGURED_DISK; | |
7204 | new_disk->disk.status &= ~SPARE_DISK; | |
7205 | } | |
7206 | ||
ed7333bd AK |
7207 | dprintf("imsm: volume set mpb->num_raid_devs = %i\n", |
7208 | mpb->num_raid_devs); | |
2e5dc010 N |
7209 | /* manage changes in volume |
7210 | */ | |
d098291a | 7211 | for (dev_id = 0; dev_id < mpb->num_raid_devs; dev_id++) { |
2e5dc010 N |
7212 | void **sp = *space_list; |
7213 | struct imsm_dev *newdev; | |
7214 | struct imsm_map *newmap, *oldmap; | |
7215 | ||
d098291a AK |
7216 | for (id = super->devlist ; id; id = id->next) { |
7217 | if (id->index == dev_id) | |
7218 | break; | |
7219 | } | |
7220 | if (id == NULL) | |
7221 | break; | |
2e5dc010 N |
7222 | if (!sp) |
7223 | continue; | |
7224 | *space_list = *sp; | |
7225 | newdev = (void*)sp; | |
7226 | /* Copy the dev, but not (all of) the map */ | |
7227 | memcpy(newdev, id->dev, sizeof(*newdev)); | |
7228 | oldmap = get_imsm_map(id->dev, 0); | |
7229 | newmap = get_imsm_map(newdev, 0); | |
7230 | /* Copy the current map */ | |
7231 | memcpy(newmap, oldmap, sizeof_imsm_map(oldmap)); | |
7232 | /* update one device only | |
7233 | */ | |
7234 | if (devices_to_reshape) { | |
ed7333bd AK |
7235 | dprintf("imsm: modifying subdev: %i\n", |
7236 | id->index); | |
2e5dc010 N |
7237 | devices_to_reshape--; |
7238 | newdev->vol.migr_state = 1; | |
7239 | newdev->vol.curr_migr_unit = 0; | |
ea672ee1 | 7240 | set_migr_type(newdev, MIGR_GEN_MIGR); |
2e5dc010 N |
7241 | newmap->num_members = u->new_raid_disks; |
7242 | for (i = 0; i < delta_disks; i++) { | |
7243 | set_imsm_ord_tbl_ent(newmap, | |
7244 | u->old_raid_disks + i, | |
7245 | u->old_raid_disks + i); | |
7246 | } | |
7247 | /* New map is correct, now need to save old map | |
7248 | */ | |
7249 | newmap = get_imsm_map(newdev, 1); | |
7250 | memcpy(newmap, oldmap, sizeof_imsm_map(oldmap)); | |
7251 | ||
70bdf0dc | 7252 | imsm_set_array_size(newdev); |
2e5dc010 N |
7253 | } |
7254 | ||
7255 | sp = (void **)id->dev; | |
7256 | id->dev = newdev; | |
7257 | *sp = tofree; | |
7258 | tofree = sp; | |
8e59f3d8 AK |
7259 | |
7260 | /* Clear migration record */ | |
7261 | memset(super->migr_rec, 0, sizeof(struct migr_record)); | |
2e5dc010 | 7262 | } |
819bc634 AK |
7263 | if (tofree) |
7264 | *space_list = tofree; | |
2e5dc010 N |
7265 | ret_val = 1; |
7266 | ||
7267 | update_reshape_exit: | |
7268 | ||
7269 | return ret_val; | |
7270 | } | |
7271 | ||
bb025c2f | 7272 | static int apply_takeover_update(struct imsm_update_takeover *u, |
8ca6df95 KW |
7273 | struct intel_super *super, |
7274 | void ***space_list) | |
bb025c2f KW |
7275 | { |
7276 | struct imsm_dev *dev = NULL; | |
8ca6df95 KW |
7277 | struct intel_dev *dv; |
7278 | struct imsm_dev *dev_new; | |
bb025c2f KW |
7279 | struct imsm_map *map; |
7280 | struct dl *dm, *du; | |
8ca6df95 | 7281 | int i; |
bb025c2f KW |
7282 | |
7283 | for (dv = super->devlist; dv; dv = dv->next) | |
7284 | if (dv->index == (unsigned int)u->subarray) { | |
7285 | dev = dv->dev; | |
7286 | break; | |
7287 | } | |
7288 | ||
7289 | if (dev == NULL) | |
7290 | return 0; | |
7291 | ||
7292 | map = get_imsm_map(dev, 0); | |
7293 | ||
7294 | if (u->direction == R10_TO_R0) { | |
43d5ec18 KW |
7295 | /* Number of failed disks must be half of initial disk number */ |
7296 | if (imsm_count_failed(super, dev) != (map->num_members / 2)) | |
7297 | return 0; | |
7298 | ||
bb025c2f KW |
7299 | /* iterate through devices to mark removed disks as spare */ |
7300 | for (dm = super->disks; dm; dm = dm->next) { | |
7301 | if (dm->disk.status & FAILED_DISK) { | |
7302 | int idx = dm->index; | |
7303 | /* update indexes on the disk list */ | |
7304 | /* FIXME this loop-with-the-loop looks wrong, I'm not convinced | |
7305 | the index values will end up being correct.... NB */ | |
7306 | for (du = super->disks; du; du = du->next) | |
7307 | if (du->index > idx) | |
7308 | du->index--; | |
7309 | /* mark as spare disk */ | |
a8619d23 | 7310 | mark_spare(dm); |
bb025c2f KW |
7311 | } |
7312 | } | |
bb025c2f KW |
7313 | /* update map */ |
7314 | map->num_members = map->num_members / 2; | |
7315 | map->map_state = IMSM_T_STATE_NORMAL; | |
7316 | map->num_domains = 1; | |
7317 | map->raid_level = 0; | |
7318 | map->failed_disk_num = -1; | |
7319 | } | |
7320 | ||
8ca6df95 KW |
7321 | if (u->direction == R0_TO_R10) { |
7322 | void **space; | |
7323 | /* update slots in current disk list */ | |
7324 | for (dm = super->disks; dm; dm = dm->next) { | |
7325 | if (dm->index >= 0) | |
7326 | dm->index *= 2; | |
7327 | } | |
7328 | /* create new *missing* disks */ | |
7329 | for (i = 0; i < map->num_members; i++) { | |
7330 | space = *space_list; | |
7331 | if (!space) | |
7332 | continue; | |
7333 | *space_list = *space; | |
7334 | du = (void *)space; | |
7335 | memcpy(du, super->disks, sizeof(*du)); | |
8ca6df95 KW |
7336 | du->fd = -1; |
7337 | du->minor = 0; | |
7338 | du->major = 0; | |
7339 | du->index = (i * 2) + 1; | |
7340 | sprintf((char *)du->disk.serial, | |
7341 | " MISSING_%d", du->index); | |
7342 | sprintf((char *)du->serial, | |
7343 | "MISSING_%d", du->index); | |
7344 | du->next = super->missing; | |
7345 | super->missing = du; | |
7346 | } | |
7347 | /* create new dev and map */ | |
7348 | space = *space_list; | |
7349 | if (!space) | |
7350 | return 0; | |
7351 | *space_list = *space; | |
7352 | dev_new = (void *)space; | |
7353 | memcpy(dev_new, dev, sizeof(*dev)); | |
7354 | /* update new map */ | |
7355 | map = get_imsm_map(dev_new, 0); | |
8ca6df95 | 7356 | map->num_members = map->num_members * 2; |
1a2487c2 | 7357 | map->map_state = IMSM_T_STATE_DEGRADED; |
8ca6df95 KW |
7358 | map->num_domains = 2; |
7359 | map->raid_level = 1; | |
7360 | /* replace dev<->dev_new */ | |
7361 | dv->dev = dev_new; | |
7362 | } | |
bb025c2f KW |
7363 | /* update disk order table */ |
7364 | for (du = super->disks; du; du = du->next) | |
7365 | if (du->index >= 0) | |
7366 | set_imsm_ord_tbl_ent(map, du->index, du->index); | |
8ca6df95 | 7367 | for (du = super->missing; du; du = du->next) |
1a2487c2 KW |
7368 | if (du->index >= 0) { |
7369 | set_imsm_ord_tbl_ent(map, du->index, du->index); | |
e4c72d1d | 7370 | mark_missing(dv->dev, &du->disk, du->index); |
1a2487c2 | 7371 | } |
bb025c2f KW |
7372 | |
7373 | return 1; | |
7374 | } | |
7375 | ||
e8319a19 DW |
7376 | static void imsm_process_update(struct supertype *st, |
7377 | struct metadata_update *update) | |
7378 | { | |
7379 | /** | |
7380 | * crack open the metadata_update envelope to find the update record | |
7381 | * update can be one of: | |
d195167d AK |
7382 | * update_reshape_container_disks - all the arrays in the container |
7383 | * are being reshaped to have more devices. We need to mark | |
7384 | * the arrays for general migration and convert selected spares | |
7385 | * into active devices. | |
7386 | * update_activate_spare - a spare device has replaced a failed | |
e8319a19 DW |
7387 | * device in an array, update the disk_ord_tbl. If this disk is |
7388 | * present in all member arrays then also clear the SPARE_DISK | |
7389 | * flag | |
d195167d AK |
7390 | * update_create_array |
7391 | * update_kill_array | |
7392 | * update_rename_array | |
7393 | * update_add_remove_disk | |
e8319a19 DW |
7394 | */ |
7395 | struct intel_super *super = st->sb; | |
4d7b1503 | 7396 | struct imsm_super *mpb; |
e8319a19 DW |
7397 | enum imsm_update_type type = *(enum imsm_update_type *) update->buf; |
7398 | ||
4d7b1503 DW |
7399 | /* update requires a larger buf but the allocation failed */ |
7400 | if (super->next_len && !super->next_buf) { | |
7401 | super->next_len = 0; | |
7402 | return; | |
7403 | } | |
7404 | ||
7405 | if (super->next_buf) { | |
7406 | memcpy(super->next_buf, super->buf, super->len); | |
7407 | free(super->buf); | |
7408 | super->len = super->next_len; | |
7409 | super->buf = super->next_buf; | |
7410 | ||
7411 | super->next_len = 0; | |
7412 | super->next_buf = NULL; | |
7413 | } | |
7414 | ||
7415 | mpb = super->anchor; | |
7416 | ||
e8319a19 | 7417 | switch (type) { |
0ec5d470 AK |
7418 | case update_general_migration_checkpoint: { |
7419 | struct intel_dev *id; | |
7420 | struct imsm_update_general_migration_checkpoint *u = | |
7421 | (void *)update->buf; | |
7422 | ||
7423 | dprintf("imsm: process_update() " | |
7424 | "for update_general_migration_checkpoint called\n"); | |
7425 | ||
7426 | /* find device under general migration */ | |
7427 | for (id = super->devlist ; id; id = id->next) { | |
7428 | if (is_gen_migration(id->dev)) { | |
7429 | id->dev->vol.curr_migr_unit = | |
7430 | __cpu_to_le32(u->curr_migr_unit); | |
7431 | super->updates_pending++; | |
7432 | } | |
7433 | } | |
7434 | break; | |
7435 | } | |
bb025c2f KW |
7436 | case update_takeover: { |
7437 | struct imsm_update_takeover *u = (void *)update->buf; | |
1a2487c2 KW |
7438 | if (apply_takeover_update(u, super, &update->space_list)) { |
7439 | imsm_update_version_info(super); | |
bb025c2f | 7440 | super->updates_pending++; |
1a2487c2 | 7441 | } |
bb025c2f KW |
7442 | break; |
7443 | } | |
7444 | ||
78b10e66 | 7445 | case update_reshape_container_disks: { |
d195167d | 7446 | struct imsm_update_reshape *u = (void *)update->buf; |
2e5dc010 N |
7447 | if (apply_reshape_container_disks_update( |
7448 | u, super, &update->space_list)) | |
7449 | super->updates_pending++; | |
78b10e66 N |
7450 | break; |
7451 | } | |
48c5303a | 7452 | case update_reshape_migration: { |
a29911da PC |
7453 | struct imsm_update_reshape_migration *u = (void *)update->buf; |
7454 | if (apply_reshape_migration_update( | |
7455 | u, super, &update->space_list)) | |
7456 | super->updates_pending++; | |
48c5303a PC |
7457 | break; |
7458 | } | |
e8319a19 DW |
7459 | case update_activate_spare: { |
7460 | struct imsm_update_activate_spare *u = (void *) update->buf; | |
061d7da3 LO |
7461 | if (apply_update_activate_spare(u, super, st->arrays)) |
7462 | super->updates_pending++; | |
8273f55e DW |
7463 | break; |
7464 | } | |
7465 | case update_create_array: { | |
7466 | /* someone wants to create a new array, we need to be aware of | |
7467 | * a few races/collisions: | |
7468 | * 1/ 'Create' called by two separate instances of mdadm | |
7469 | * 2/ 'Create' versus 'activate_spare': mdadm has chosen | |
7470 | * devices that have since been assimilated via | |
7471 | * activate_spare. | |
7472 | * In the event this update can not be carried out mdadm will | |
7473 | * (FIX ME) notice that its update did not take hold. | |
7474 | */ | |
7475 | struct imsm_update_create_array *u = (void *) update->buf; | |
ba2de7ba | 7476 | struct intel_dev *dv; |
8273f55e DW |
7477 | struct imsm_dev *dev; |
7478 | struct imsm_map *map, *new_map; | |
7479 | unsigned long long start, end; | |
7480 | unsigned long long new_start, new_end; | |
7481 | int i; | |
54c2c1ea DW |
7482 | struct disk_info *inf; |
7483 | struct dl *dl; | |
8273f55e DW |
7484 | |
7485 | /* handle racing creates: first come first serve */ | |
7486 | if (u->dev_idx < mpb->num_raid_devs) { | |
7487 | dprintf("%s: subarray %d already defined\n", | |
7488 | __func__, u->dev_idx); | |
ba2de7ba | 7489 | goto create_error; |
8273f55e DW |
7490 | } |
7491 | ||
7492 | /* check update is next in sequence */ | |
7493 | if (u->dev_idx != mpb->num_raid_devs) { | |
6a3e913e DW |
7494 | dprintf("%s: can not create array %d expected index %d\n", |
7495 | __func__, u->dev_idx, mpb->num_raid_devs); | |
ba2de7ba | 7496 | goto create_error; |
8273f55e DW |
7497 | } |
7498 | ||
a965f303 | 7499 | new_map = get_imsm_map(&u->dev, 0); |
8273f55e DW |
7500 | new_start = __le32_to_cpu(new_map->pba_of_lba0); |
7501 | new_end = new_start + __le32_to_cpu(new_map->blocks_per_member); | |
54c2c1ea | 7502 | inf = get_disk_info(u); |
8273f55e DW |
7503 | |
7504 | /* handle activate_spare versus create race: | |
7505 | * check to make sure that overlapping arrays do not include | |
7506 | * overalpping disks | |
7507 | */ | |
7508 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
949c47a0 | 7509 | dev = get_imsm_dev(super, i); |
a965f303 | 7510 | map = get_imsm_map(dev, 0); |
8273f55e DW |
7511 | start = __le32_to_cpu(map->pba_of_lba0); |
7512 | end = start + __le32_to_cpu(map->blocks_per_member); | |
7513 | if ((new_start >= start && new_start <= end) || | |
7514 | (start >= new_start && start <= new_end)) | |
54c2c1ea DW |
7515 | /* overlap */; |
7516 | else | |
7517 | continue; | |
7518 | ||
7519 | if (disks_overlap(super, i, u)) { | |
8273f55e | 7520 | dprintf("%s: arrays overlap\n", __func__); |
ba2de7ba | 7521 | goto create_error; |
8273f55e DW |
7522 | } |
7523 | } | |
8273f55e | 7524 | |
949c47a0 DW |
7525 | /* check that prepare update was successful */ |
7526 | if (!update->space) { | |
7527 | dprintf("%s: prepare update failed\n", __func__); | |
ba2de7ba | 7528 | goto create_error; |
949c47a0 DW |
7529 | } |
7530 | ||
54c2c1ea DW |
7531 | /* check that all disks are still active before committing |
7532 | * changes. FIXME: could we instead handle this by creating a | |
7533 | * degraded array? That's probably not what the user expects, | |
7534 | * so better to drop this update on the floor. | |
7535 | */ | |
7536 | for (i = 0; i < new_map->num_members; i++) { | |
7537 | dl = serial_to_dl(inf[i].serial, super); | |
7538 | if (!dl) { | |
7539 | dprintf("%s: disk disappeared\n", __func__); | |
ba2de7ba | 7540 | goto create_error; |
54c2c1ea | 7541 | } |
949c47a0 DW |
7542 | } |
7543 | ||
8273f55e | 7544 | super->updates_pending++; |
54c2c1ea DW |
7545 | |
7546 | /* convert spares to members and fixup ord_tbl */ | |
7547 | for (i = 0; i < new_map->num_members; i++) { | |
7548 | dl = serial_to_dl(inf[i].serial, super); | |
7549 | if (dl->index == -1) { | |
7550 | dl->index = mpb->num_disks; | |
7551 | mpb->num_disks++; | |
7552 | dl->disk.status |= CONFIGURED_DISK; | |
7553 | dl->disk.status &= ~SPARE_DISK; | |
7554 | } | |
7555 | set_imsm_ord_tbl_ent(new_map, i, dl->index); | |
7556 | } | |
7557 | ||
ba2de7ba DW |
7558 | dv = update->space; |
7559 | dev = dv->dev; | |
949c47a0 DW |
7560 | update->space = NULL; |
7561 | imsm_copy_dev(dev, &u->dev); | |
ba2de7ba DW |
7562 | dv->index = u->dev_idx; |
7563 | dv->next = super->devlist; | |
7564 | super->devlist = dv; | |
8273f55e | 7565 | mpb->num_raid_devs++; |
8273f55e | 7566 | |
4d1313e9 | 7567 | imsm_update_version_info(super); |
8273f55e | 7568 | break; |
ba2de7ba DW |
7569 | create_error: |
7570 | /* mdmon knows how to release update->space, but not | |
7571 | * ((struct intel_dev *) update->space)->dev | |
7572 | */ | |
7573 | if (update->space) { | |
7574 | dv = update->space; | |
7575 | free(dv->dev); | |
7576 | } | |
8273f55e | 7577 | break; |
e8319a19 | 7578 | } |
33414a01 DW |
7579 | case update_kill_array: { |
7580 | struct imsm_update_kill_array *u = (void *) update->buf; | |
7581 | int victim = u->dev_idx; | |
7582 | struct active_array *a; | |
7583 | struct intel_dev **dp; | |
7584 | struct imsm_dev *dev; | |
7585 | ||
7586 | /* sanity check that we are not affecting the uuid of | |
7587 | * active arrays, or deleting an active array | |
7588 | * | |
7589 | * FIXME when immutable ids are available, but note that | |
7590 | * we'll also need to fixup the invalidated/active | |
7591 | * subarray indexes in mdstat | |
7592 | */ | |
7593 | for (a = st->arrays; a; a = a->next) | |
7594 | if (a->info.container_member >= victim) | |
7595 | break; | |
7596 | /* by definition if mdmon is running at least one array | |
7597 | * is active in the container, so checking | |
7598 | * mpb->num_raid_devs is just extra paranoia | |
7599 | */ | |
7600 | dev = get_imsm_dev(super, victim); | |
7601 | if (a || !dev || mpb->num_raid_devs == 1) { | |
7602 | dprintf("failed to delete subarray-%d\n", victim); | |
7603 | break; | |
7604 | } | |
7605 | ||
7606 | for (dp = &super->devlist; *dp;) | |
f21e18ca | 7607 | if ((*dp)->index == (unsigned)super->current_vol) { |
33414a01 DW |
7608 | *dp = (*dp)->next; |
7609 | } else { | |
f21e18ca | 7610 | if ((*dp)->index > (unsigned)victim) |
33414a01 DW |
7611 | (*dp)->index--; |
7612 | dp = &(*dp)->next; | |
7613 | } | |
7614 | mpb->num_raid_devs--; | |
7615 | super->updates_pending++; | |
7616 | break; | |
7617 | } | |
aa534678 DW |
7618 | case update_rename_array: { |
7619 | struct imsm_update_rename_array *u = (void *) update->buf; | |
7620 | char name[MAX_RAID_SERIAL_LEN+1]; | |
7621 | int target = u->dev_idx; | |
7622 | struct active_array *a; | |
7623 | struct imsm_dev *dev; | |
7624 | ||
7625 | /* sanity check that we are not affecting the uuid of | |
7626 | * an active array | |
7627 | */ | |
7628 | snprintf(name, MAX_RAID_SERIAL_LEN, "%s", (char *) u->name); | |
7629 | name[MAX_RAID_SERIAL_LEN] = '\0'; | |
7630 | for (a = st->arrays; a; a = a->next) | |
7631 | if (a->info.container_member == target) | |
7632 | break; | |
7633 | dev = get_imsm_dev(super, u->dev_idx); | |
7634 | if (a || !dev || !check_name(super, name, 1)) { | |
7635 | dprintf("failed to rename subarray-%d\n", target); | |
7636 | break; | |
7637 | } | |
7638 | ||
cdbe98cd | 7639 | snprintf((char *) dev->volume, MAX_RAID_SERIAL_LEN, "%s", name); |
aa534678 DW |
7640 | super->updates_pending++; |
7641 | break; | |
7642 | } | |
1a64be56 | 7643 | case update_add_remove_disk: { |
43dad3d6 | 7644 | /* we may be able to repair some arrays if disks are |
1a64be56 LM |
7645 | * being added, check teh status of add_remove_disk |
7646 | * if discs has been added. | |
7647 | */ | |
7648 | if (add_remove_disk_update(super)) { | |
43dad3d6 | 7649 | struct active_array *a; |
072b727f DW |
7650 | |
7651 | super->updates_pending++; | |
1a64be56 | 7652 | for (a = st->arrays; a; a = a->next) |
43dad3d6 DW |
7653 | a->check_degraded = 1; |
7654 | } | |
43dad3d6 | 7655 | break; |
e8319a19 | 7656 | } |
1a64be56 LM |
7657 | default: |
7658 | fprintf(stderr, "error: unsuported process update type:" | |
7659 | "(type: %d)\n", type); | |
7660 | } | |
e8319a19 | 7661 | } |
88758e9d | 7662 | |
bc0b9d34 PC |
7663 | static struct mdinfo *get_spares_for_grow(struct supertype *st); |
7664 | ||
8273f55e DW |
7665 | static void imsm_prepare_update(struct supertype *st, |
7666 | struct metadata_update *update) | |
7667 | { | |
949c47a0 | 7668 | /** |
4d7b1503 DW |
7669 | * Allocate space to hold new disk entries, raid-device entries or a new |
7670 | * mpb if necessary. The manager synchronously waits for updates to | |
7671 | * complete in the monitor, so new mpb buffers allocated here can be | |
7672 | * integrated by the monitor thread without worrying about live pointers | |
7673 | * in the manager thread. | |
8273f55e | 7674 | */ |
949c47a0 | 7675 | enum imsm_update_type type = *(enum imsm_update_type *) update->buf; |
4d7b1503 DW |
7676 | struct intel_super *super = st->sb; |
7677 | struct imsm_super *mpb = super->anchor; | |
7678 | size_t buf_len; | |
7679 | size_t len = 0; | |
949c47a0 DW |
7680 | |
7681 | switch (type) { | |
0ec5d470 AK |
7682 | case update_general_migration_checkpoint: |
7683 | dprintf("imsm: prepare_update() " | |
7684 | "for update_general_migration_checkpoint called\n"); | |
7685 | break; | |
abedf5fc KW |
7686 | case update_takeover: { |
7687 | struct imsm_update_takeover *u = (void *)update->buf; | |
7688 | if (u->direction == R0_TO_R10) { | |
7689 | void **tail = (void **)&update->space_list; | |
7690 | struct imsm_dev *dev = get_imsm_dev(super, u->subarray); | |
7691 | struct imsm_map *map = get_imsm_map(dev, 0); | |
7692 | int num_members = map->num_members; | |
7693 | void *space; | |
7694 | int size, i; | |
7695 | int err = 0; | |
7696 | /* allocate memory for added disks */ | |
7697 | for (i = 0; i < num_members; i++) { | |
7698 | size = sizeof(struct dl); | |
7699 | space = malloc(size); | |
7700 | if (!space) { | |
7701 | err++; | |
7702 | break; | |
7703 | } | |
7704 | *tail = space; | |
7705 | tail = space; | |
7706 | *tail = NULL; | |
7707 | } | |
7708 | /* allocate memory for new device */ | |
7709 | size = sizeof_imsm_dev(super->devlist->dev, 0) + | |
7710 | (num_members * sizeof(__u32)); | |
7711 | space = malloc(size); | |
7712 | if (!space) | |
7713 | err++; | |
7714 | else { | |
7715 | *tail = space; | |
7716 | tail = space; | |
7717 | *tail = NULL; | |
7718 | } | |
7719 | if (!err) { | |
7720 | len = disks_to_mpb_size(num_members * 2); | |
7721 | } else { | |
7722 | /* if allocation didn't success, free buffer */ | |
7723 | while (update->space_list) { | |
7724 | void **sp = update->space_list; | |
7725 | update->space_list = *sp; | |
7726 | free(sp); | |
7727 | } | |
7728 | } | |
7729 | } | |
7730 | ||
7731 | break; | |
7732 | } | |
78b10e66 | 7733 | case update_reshape_container_disks: { |
d195167d AK |
7734 | /* Every raid device in the container is about to |
7735 | * gain some more devices, and we will enter a | |
7736 | * reconfiguration. | |
7737 | * So each 'imsm_map' will be bigger, and the imsm_vol | |
7738 | * will now hold 2 of them. | |
7739 | * Thus we need new 'struct imsm_dev' allocations sized | |
7740 | * as sizeof_imsm_dev but with more devices in both maps. | |
7741 | */ | |
7742 | struct imsm_update_reshape *u = (void *)update->buf; | |
7743 | struct intel_dev *dl; | |
7744 | void **space_tail = (void**)&update->space_list; | |
7745 | ||
7746 | dprintf("imsm: imsm_prepare_update() for update_reshape\n"); | |
7747 | ||
7748 | for (dl = super->devlist; dl; dl = dl->next) { | |
7749 | int size = sizeof_imsm_dev(dl->dev, 1); | |
7750 | void *s; | |
d677e0b8 AK |
7751 | if (u->new_raid_disks > u->old_raid_disks) |
7752 | size += sizeof(__u32)*2* | |
7753 | (u->new_raid_disks - u->old_raid_disks); | |
d195167d AK |
7754 | s = malloc(size); |
7755 | if (!s) | |
7756 | break; | |
7757 | *space_tail = s; | |
7758 | space_tail = s; | |
7759 | *space_tail = NULL; | |
7760 | } | |
7761 | ||
7762 | len = disks_to_mpb_size(u->new_raid_disks); | |
7763 | dprintf("New anchor length is %llu\n", (unsigned long long)len); | |
78b10e66 N |
7764 | break; |
7765 | } | |
48c5303a | 7766 | case update_reshape_migration: { |
bc0b9d34 PC |
7767 | /* for migration level 0->5 we need to add disks |
7768 | * so the same as for container operation we will copy | |
7769 | * device to the bigger location. | |
7770 | * in memory prepared device and new disk area are prepared | |
7771 | * for usage in process update | |
7772 | */ | |
7773 | struct imsm_update_reshape_migration *u = (void *)update->buf; | |
7774 | struct intel_dev *id; | |
7775 | void **space_tail = (void **)&update->space_list; | |
7776 | int size; | |
7777 | void *s; | |
7778 | int current_level = -1; | |
7779 | ||
7780 | dprintf("imsm: imsm_prepare_update() for update_reshape\n"); | |
7781 | ||
7782 | /* add space for bigger array in update | |
7783 | */ | |
7784 | for (id = super->devlist; id; id = id->next) { | |
7785 | if (id->index == (unsigned)u->subdev) { | |
7786 | size = sizeof_imsm_dev(id->dev, 1); | |
7787 | if (u->new_raid_disks > u->old_raid_disks) | |
7788 | size += sizeof(__u32)*2* | |
7789 | (u->new_raid_disks - u->old_raid_disks); | |
7790 | s = malloc(size); | |
7791 | if (!s) | |
7792 | break; | |
7793 | *space_tail = s; | |
7794 | space_tail = s; | |
7795 | *space_tail = NULL; | |
7796 | break; | |
7797 | } | |
7798 | } | |
7799 | if (update->space_list == NULL) | |
7800 | break; | |
7801 | ||
7802 | /* add space for disk in update | |
7803 | */ | |
7804 | size = sizeof(struct dl); | |
7805 | s = malloc(size); | |
7806 | if (!s) { | |
7807 | free(update->space_list); | |
7808 | update->space_list = NULL; | |
7809 | break; | |
7810 | } | |
7811 | *space_tail = s; | |
7812 | space_tail = s; | |
7813 | *space_tail = NULL; | |
7814 | ||
7815 | /* add spare device to update | |
7816 | */ | |
7817 | for (id = super->devlist ; id; id = id->next) | |
7818 | if (id->index == (unsigned)u->subdev) { | |
7819 | struct imsm_dev *dev; | |
7820 | struct imsm_map *map; | |
7821 | ||
7822 | dev = get_imsm_dev(super, u->subdev); | |
7823 | map = get_imsm_map(dev, 0); | |
7824 | current_level = map->raid_level; | |
7825 | break; | |
7826 | } | |
7827 | if ((u->new_level == 5) && (u->new_level != current_level)) { | |
7828 | struct mdinfo *spares; | |
7829 | ||
7830 | spares = get_spares_for_grow(st); | |
7831 | if (spares) { | |
7832 | struct dl *dl; | |
7833 | struct mdinfo *dev; | |
7834 | ||
7835 | dev = spares->devs; | |
7836 | if (dev) { | |
7837 | u->new_disks[0] = | |
7838 | makedev(dev->disk.major, | |
7839 | dev->disk.minor); | |
7840 | dl = get_disk_super(super, | |
7841 | dev->disk.major, | |
7842 | dev->disk.minor); | |
7843 | dl->index = u->old_raid_disks; | |
7844 | dev = dev->next; | |
7845 | } | |
7846 | sysfs_free(spares); | |
7847 | } | |
7848 | } | |
7849 | len = disks_to_mpb_size(u->new_raid_disks); | |
7850 | dprintf("New anchor length is %llu\n", (unsigned long long)len); | |
48c5303a PC |
7851 | break; |
7852 | } | |
949c47a0 DW |
7853 | case update_create_array: { |
7854 | struct imsm_update_create_array *u = (void *) update->buf; | |
ba2de7ba | 7855 | struct intel_dev *dv; |
54c2c1ea DW |
7856 | struct imsm_dev *dev = &u->dev; |
7857 | struct imsm_map *map = get_imsm_map(dev, 0); | |
7858 | struct dl *dl; | |
7859 | struct disk_info *inf; | |
7860 | int i; | |
7861 | int activate = 0; | |
949c47a0 | 7862 | |
54c2c1ea DW |
7863 | inf = get_disk_info(u); |
7864 | len = sizeof_imsm_dev(dev, 1); | |
ba2de7ba DW |
7865 | /* allocate a new super->devlist entry */ |
7866 | dv = malloc(sizeof(*dv)); | |
7867 | if (dv) { | |
7868 | dv->dev = malloc(len); | |
7869 | if (dv->dev) | |
7870 | update->space = dv; | |
7871 | else { | |
7872 | free(dv); | |
7873 | update->space = NULL; | |
7874 | } | |
7875 | } | |
949c47a0 | 7876 | |
54c2c1ea DW |
7877 | /* count how many spares will be converted to members */ |
7878 | for (i = 0; i < map->num_members; i++) { | |
7879 | dl = serial_to_dl(inf[i].serial, super); | |
7880 | if (!dl) { | |
7881 | /* hmm maybe it failed?, nothing we can do about | |
7882 | * it here | |
7883 | */ | |
7884 | continue; | |
7885 | } | |
7886 | if (count_memberships(dl, super) == 0) | |
7887 | activate++; | |
7888 | } | |
7889 | len += activate * sizeof(struct imsm_disk); | |
949c47a0 DW |
7890 | break; |
7891 | default: | |
7892 | break; | |
7893 | } | |
7894 | } | |
8273f55e | 7895 | |
4d7b1503 DW |
7896 | /* check if we need a larger metadata buffer */ |
7897 | if (super->next_buf) | |
7898 | buf_len = super->next_len; | |
7899 | else | |
7900 | buf_len = super->len; | |
7901 | ||
7902 | if (__le32_to_cpu(mpb->mpb_size) + len > buf_len) { | |
7903 | /* ok we need a larger buf than what is currently allocated | |
7904 | * if this allocation fails process_update will notice that | |
7905 | * ->next_len is set and ->next_buf is NULL | |
7906 | */ | |
7907 | buf_len = ROUND_UP(__le32_to_cpu(mpb->mpb_size) + len, 512); | |
7908 | if (super->next_buf) | |
7909 | free(super->next_buf); | |
7910 | ||
7911 | super->next_len = buf_len; | |
1f45a8ad DW |
7912 | if (posix_memalign(&super->next_buf, 512, buf_len) == 0) |
7913 | memset(super->next_buf, 0, buf_len); | |
7914 | else | |
4d7b1503 DW |
7915 | super->next_buf = NULL; |
7916 | } | |
8273f55e DW |
7917 | } |
7918 | ||
ae6aad82 | 7919 | /* must be called while manager is quiesced */ |
f21e18ca | 7920 | static void imsm_delete(struct intel_super *super, struct dl **dlp, unsigned index) |
ae6aad82 DW |
7921 | { |
7922 | struct imsm_super *mpb = super->anchor; | |
ae6aad82 DW |
7923 | struct dl *iter; |
7924 | struct imsm_dev *dev; | |
7925 | struct imsm_map *map; | |
24565c9a DW |
7926 | int i, j, num_members; |
7927 | __u32 ord; | |
ae6aad82 | 7928 | |
24565c9a DW |
7929 | dprintf("%s: deleting device[%d] from imsm_super\n", |
7930 | __func__, index); | |
ae6aad82 DW |
7931 | |
7932 | /* shift all indexes down one */ | |
7933 | for (iter = super->disks; iter; iter = iter->next) | |
f21e18ca | 7934 | if (iter->index > (int)index) |
ae6aad82 | 7935 | iter->index--; |
47ee5a45 | 7936 | for (iter = super->missing; iter; iter = iter->next) |
f21e18ca | 7937 | if (iter->index > (int)index) |
47ee5a45 | 7938 | iter->index--; |
ae6aad82 DW |
7939 | |
7940 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
7941 | dev = get_imsm_dev(super, i); | |
7942 | map = get_imsm_map(dev, 0); | |
24565c9a DW |
7943 | num_members = map->num_members; |
7944 | for (j = 0; j < num_members; j++) { | |
7945 | /* update ord entries being careful not to propagate | |
7946 | * ord-flags to the first map | |
7947 | */ | |
98130f40 | 7948 | ord = get_imsm_ord_tbl_ent(dev, j, -1); |
ae6aad82 | 7949 | |
24565c9a DW |
7950 | if (ord_to_idx(ord) <= index) |
7951 | continue; | |
ae6aad82 | 7952 | |
24565c9a DW |
7953 | map = get_imsm_map(dev, 0); |
7954 | set_imsm_ord_tbl_ent(map, j, ord_to_idx(ord - 1)); | |
7955 | map = get_imsm_map(dev, 1); | |
7956 | if (map) | |
7957 | set_imsm_ord_tbl_ent(map, j, ord - 1); | |
ae6aad82 DW |
7958 | } |
7959 | } | |
7960 | ||
7961 | mpb->num_disks--; | |
7962 | super->updates_pending++; | |
24565c9a DW |
7963 | if (*dlp) { |
7964 | struct dl *dl = *dlp; | |
7965 | ||
7966 | *dlp = (*dlp)->next; | |
7967 | __free_imsm_disk(dl); | |
7968 | } | |
ae6aad82 | 7969 | } |
9e2d750d | 7970 | #endif /* MDASSEMBLE */ |
687629c2 AK |
7971 | /******************************************************************************* |
7972 | * Function: open_backup_targets | |
7973 | * Description: Function opens file descriptors for all devices given in | |
7974 | * info->devs | |
7975 | * Parameters: | |
7976 | * info : general array info | |
7977 | * raid_disks : number of disks | |
7978 | * raid_fds : table of device's file descriptors | |
7979 | * Returns: | |
7980 | * 0 : success | |
7981 | * -1 : fail | |
7982 | ******************************************************************************/ | |
7983 | int open_backup_targets(struct mdinfo *info, int raid_disks, int *raid_fds) | |
7984 | { | |
7985 | struct mdinfo *sd; | |
f627f5ad AK |
7986 | int i; |
7987 | ||
7988 | for (i = 0; i < raid_disks; i++) | |
7989 | raid_fds[i] = -1; | |
687629c2 AK |
7990 | |
7991 | for (sd = info->devs ; sd ; sd = sd->next) { | |
7992 | char *dn; | |
7993 | ||
7994 | if (sd->disk.state & (1<<MD_DISK_FAULTY)) { | |
7995 | dprintf("disk is faulty!!\n"); | |
7996 | continue; | |
7997 | } | |
7998 | ||
7999 | if ((sd->disk.raid_disk >= raid_disks) || | |
8000 | (sd->disk.raid_disk < 0)) | |
8001 | continue; | |
8002 | ||
8003 | dn = map_dev(sd->disk.major, | |
8004 | sd->disk.minor, 1); | |
8005 | raid_fds[sd->disk.raid_disk] = dev_open(dn, O_RDWR); | |
8006 | if (raid_fds[sd->disk.raid_disk] < 0) { | |
8007 | fprintf(stderr, "cannot open component\n"); | |
8008 | return -1; | |
8009 | } | |
8010 | } | |
8011 | return 0; | |
8012 | } | |
8013 | ||
9e2d750d | 8014 | #ifndef MDASSEMBLE |
687629c2 AK |
8015 | /******************************************************************************* |
8016 | * Function: init_migr_record_imsm | |
8017 | * Description: Function inits imsm migration record | |
8018 | * Parameters: | |
8019 | * super : imsm internal array info | |
8020 | * dev : device under migration | |
8021 | * info : general array info to find the smallest device | |
8022 | * Returns: | |
8023 | * none | |
8024 | ******************************************************************************/ | |
8025 | void init_migr_record_imsm(struct supertype *st, struct imsm_dev *dev, | |
8026 | struct mdinfo *info) | |
8027 | { | |
8028 | struct intel_super *super = st->sb; | |
8029 | struct migr_record *migr_rec = super->migr_rec; | |
8030 | int new_data_disks; | |
8031 | unsigned long long dsize, dev_sectors; | |
8032 | long long unsigned min_dev_sectors = -1LLU; | |
8033 | struct mdinfo *sd; | |
8034 | char nm[30]; | |
8035 | int fd; | |
8036 | struct imsm_map *map_dest = get_imsm_map(dev, 0); | |
8037 | struct imsm_map *map_src = get_imsm_map(dev, 1); | |
8038 | unsigned long long num_migr_units; | |
3ef4403c | 8039 | unsigned long long array_blocks; |
687629c2 AK |
8040 | |
8041 | memset(migr_rec, 0, sizeof(struct migr_record)); | |
8042 | migr_rec->family_num = __cpu_to_le32(super->anchor->family_num); | |
8043 | ||
8044 | /* only ascending reshape supported now */ | |
8045 | migr_rec->ascending_migr = __cpu_to_le32(1); | |
8046 | ||
8047 | migr_rec->dest_depth_per_unit = GEN_MIGR_AREA_SIZE / | |
8048 | max(map_dest->blocks_per_strip, map_src->blocks_per_strip); | |
8049 | migr_rec->dest_depth_per_unit *= map_dest->blocks_per_strip; | |
8050 | new_data_disks = imsm_num_data_members(dev, 0); | |
8051 | migr_rec->blocks_per_unit = | |
8052 | __cpu_to_le32(migr_rec->dest_depth_per_unit * new_data_disks); | |
8053 | migr_rec->dest_depth_per_unit = | |
8054 | __cpu_to_le32(migr_rec->dest_depth_per_unit); | |
3ef4403c | 8055 | array_blocks = info->component_size * new_data_disks; |
687629c2 AK |
8056 | num_migr_units = |
8057 | array_blocks / __le32_to_cpu(migr_rec->blocks_per_unit); | |
8058 | ||
8059 | if (array_blocks % __le32_to_cpu(migr_rec->blocks_per_unit)) | |
8060 | num_migr_units++; | |
8061 | migr_rec->num_migr_units = __cpu_to_le32(num_migr_units); | |
8062 | ||
8063 | migr_rec->post_migr_vol_cap = dev->size_low; | |
8064 | migr_rec->post_migr_vol_cap_hi = dev->size_high; | |
8065 | ||
8066 | ||
8067 | /* Find the smallest dev */ | |
8068 | for (sd = info->devs ; sd ; sd = sd->next) { | |
8069 | sprintf(nm, "%d:%d", sd->disk.major, sd->disk.minor); | |
8070 | fd = dev_open(nm, O_RDONLY); | |
8071 | if (fd < 0) | |
8072 | continue; | |
8073 | get_dev_size(fd, NULL, &dsize); | |
8074 | dev_sectors = dsize / 512; | |
8075 | if (dev_sectors < min_dev_sectors) | |
8076 | min_dev_sectors = dev_sectors; | |
8077 | close(fd); | |
8078 | } | |
8079 | migr_rec->ckpt_area_pba = __cpu_to_le32(min_dev_sectors - | |
8080 | RAID_DISK_RESERVED_BLOCKS_IMSM_HI); | |
8081 | ||
8082 | write_imsm_migr_rec(st); | |
8083 | ||
8084 | return; | |
8085 | } | |
8086 | ||
8087 | /******************************************************************************* | |
8088 | * Function: save_backup_imsm | |
8089 | * Description: Function saves critical data stripes to Migration Copy Area | |
8090 | * and updates the current migration unit status. | |
8091 | * Use restore_stripes() to form a destination stripe, | |
8092 | * and to write it to the Copy Area. | |
8093 | * Parameters: | |
8094 | * st : supertype information | |
aea93171 | 8095 | * dev : imsm device that backup is saved for |
687629c2 AK |
8096 | * info : general array info |
8097 | * buf : input buffer | |
687629c2 AK |
8098 | * length : length of data to backup (blocks_per_unit) |
8099 | * Returns: | |
8100 | * 0 : success | |
8101 | *, -1 : fail | |
8102 | ******************************************************************************/ | |
8103 | int save_backup_imsm(struct supertype *st, | |
8104 | struct imsm_dev *dev, | |
8105 | struct mdinfo *info, | |
8106 | void *buf, | |
687629c2 AK |
8107 | int length) |
8108 | { | |
8109 | int rv = -1; | |
8110 | struct intel_super *super = st->sb; | |
8111 | unsigned long long *target_offsets = NULL; | |
8112 | int *targets = NULL; | |
8113 | int i; | |
8114 | struct imsm_map *map_dest = get_imsm_map(dev, 0); | |
8115 | int new_disks = map_dest->num_members; | |
ab724b98 AK |
8116 | int dest_layout = 0; |
8117 | int dest_chunk; | |
d1877f69 AK |
8118 | unsigned long long start; |
8119 | int data_disks = imsm_num_data_members(dev, 0); | |
687629c2 AK |
8120 | |
8121 | targets = malloc(new_disks * sizeof(int)); | |
8122 | if (!targets) | |
8123 | goto abort; | |
8124 | ||
7e45b550 AK |
8125 | for (i = 0; i < new_disks; i++) |
8126 | targets[i] = -1; | |
8127 | ||
687629c2 AK |
8128 | target_offsets = malloc(new_disks * sizeof(unsigned long long)); |
8129 | if (!target_offsets) | |
8130 | goto abort; | |
8131 | ||
d1877f69 | 8132 | start = info->reshape_progress * 512; |
687629c2 | 8133 | for (i = 0; i < new_disks; i++) { |
687629c2 AK |
8134 | target_offsets[i] = (unsigned long long) |
8135 | __le32_to_cpu(super->migr_rec->ckpt_area_pba) * 512; | |
d1877f69 AK |
8136 | /* move back copy area adderss, it will be moved forward |
8137 | * in restore_stripes() using start input variable | |
8138 | */ | |
8139 | target_offsets[i] -= start/data_disks; | |
687629c2 AK |
8140 | } |
8141 | ||
8142 | if (open_backup_targets(info, new_disks, targets)) | |
8143 | goto abort; | |
8144 | ||
68eb8bc6 | 8145 | dest_layout = imsm_level_to_layout(map_dest->raid_level); |
ab724b98 AK |
8146 | dest_chunk = __le16_to_cpu(map_dest->blocks_per_strip) * 512; |
8147 | ||
687629c2 AK |
8148 | if (restore_stripes(targets, /* list of dest devices */ |
8149 | target_offsets, /* migration record offsets */ | |
8150 | new_disks, | |
ab724b98 AK |
8151 | dest_chunk, |
8152 | map_dest->raid_level, | |
8153 | dest_layout, | |
8154 | -1, /* source backup file descriptor */ | |
8155 | 0, /* input buf offset | |
8156 | * always 0 buf is already offseted */ | |
d1877f69 | 8157 | start, |
687629c2 AK |
8158 | length, |
8159 | buf) != 0) { | |
8160 | fprintf(stderr, Name ": Error restoring stripes\n"); | |
8161 | goto abort; | |
8162 | } | |
8163 | ||
8164 | rv = 0; | |
8165 | ||
8166 | abort: | |
8167 | if (targets) { | |
8168 | for (i = 0; i < new_disks; i++) | |
8169 | if (targets[i] >= 0) | |
8170 | close(targets[i]); | |
8171 | free(targets); | |
8172 | } | |
8173 | free(target_offsets); | |
8174 | ||
8175 | return rv; | |
8176 | } | |
8177 | ||
8178 | /******************************************************************************* | |
8179 | * Function: save_checkpoint_imsm | |
8180 | * Description: Function called for current unit status update | |
8181 | * in the migration record. It writes it to disk. | |
8182 | * Parameters: | |
8183 | * super : imsm internal array info | |
8184 | * info : general array info | |
8185 | * Returns: | |
8186 | * 0: success | |
8187 | * 1: failure | |
0228d92c AK |
8188 | * 2: failure, means no valid migration record |
8189 | * / no general migration in progress / | |
687629c2 AK |
8190 | ******************************************************************************/ |
8191 | int save_checkpoint_imsm(struct supertype *st, struct mdinfo *info, int state) | |
8192 | { | |
8193 | struct intel_super *super = st->sb; | |
f8b72ef5 AK |
8194 | unsigned long long blocks_per_unit; |
8195 | unsigned long long curr_migr_unit; | |
8196 | ||
2e062e82 AK |
8197 | if (load_imsm_migr_rec(super, info) != 0) { |
8198 | dprintf("imsm: ERROR: Cannot read migration record " | |
8199 | "for checkpoint save.\n"); | |
8200 | return 1; | |
8201 | } | |
8202 | ||
f8b72ef5 AK |
8203 | blocks_per_unit = __le32_to_cpu(super->migr_rec->blocks_per_unit); |
8204 | if (blocks_per_unit == 0) { | |
0228d92c AK |
8205 | dprintf("imsm: no migration in progress.\n"); |
8206 | return 2; | |
687629c2 | 8207 | } |
f8b72ef5 AK |
8208 | curr_migr_unit = info->reshape_progress / blocks_per_unit; |
8209 | /* check if array is alligned to copy area | |
8210 | * if it is not alligned, add one to current migration unit value | |
8211 | * this can happend on array reshape finish only | |
8212 | */ | |
8213 | if (info->reshape_progress % blocks_per_unit) | |
8214 | curr_migr_unit++; | |
687629c2 AK |
8215 | |
8216 | super->migr_rec->curr_migr_unit = | |
f8b72ef5 | 8217 | __cpu_to_le32(curr_migr_unit); |
687629c2 AK |
8218 | super->migr_rec->rec_status = __cpu_to_le32(state); |
8219 | super->migr_rec->dest_1st_member_lba = | |
f8b72ef5 AK |
8220 | __cpu_to_le32(curr_migr_unit * |
8221 | __le32_to_cpu(super->migr_rec->dest_depth_per_unit)); | |
687629c2 AK |
8222 | if (write_imsm_migr_rec(st) < 0) { |
8223 | dprintf("imsm: Cannot write migration record " | |
8224 | "outside backup area\n"); | |
8225 | return 1; | |
8226 | } | |
8227 | ||
8228 | return 0; | |
8229 | } | |
8230 | ||
276d77db AK |
8231 | /******************************************************************************* |
8232 | * Function: recover_backup_imsm | |
8233 | * Description: Function recovers critical data from the Migration Copy Area | |
8234 | * while assembling an array. | |
8235 | * Parameters: | |
8236 | * super : imsm internal array info | |
8237 | * info : general array info | |
8238 | * Returns: | |
8239 | * 0 : success (or there is no data to recover) | |
8240 | * 1 : fail | |
8241 | ******************************************************************************/ | |
8242 | int recover_backup_imsm(struct supertype *st, struct mdinfo *info) | |
8243 | { | |
8244 | struct intel_super *super = st->sb; | |
8245 | struct migr_record *migr_rec = super->migr_rec; | |
8246 | struct imsm_map *map_dest = NULL; | |
8247 | struct intel_dev *id = NULL; | |
8248 | unsigned long long read_offset; | |
8249 | unsigned long long write_offset; | |
8250 | unsigned unit_len; | |
8251 | int *targets = NULL; | |
8252 | int new_disks, i, err; | |
8253 | char *buf = NULL; | |
8254 | int retval = 1; | |
8255 | unsigned long curr_migr_unit = __le32_to_cpu(migr_rec->curr_migr_unit); | |
8256 | unsigned long num_migr_units = __le32_to_cpu(migr_rec->num_migr_units); | |
276d77db | 8257 | char buffer[20]; |
6c3560c0 AK |
8258 | int skipped_disks = 0; |
8259 | int max_degradation; | |
276d77db AK |
8260 | |
8261 | err = sysfs_get_str(info, NULL, "array_state", (char *)buffer, 20); | |
8262 | if (err < 1) | |
8263 | return 1; | |
8264 | ||
8265 | /* recover data only during assemblation */ | |
8266 | if (strncmp(buffer, "inactive", 8) != 0) | |
8267 | return 0; | |
8268 | /* no data to recover */ | |
8269 | if (__le32_to_cpu(migr_rec->rec_status) == UNIT_SRC_NORMAL) | |
8270 | return 0; | |
8271 | if (curr_migr_unit >= num_migr_units) | |
8272 | return 1; | |
8273 | ||
8274 | /* find device during reshape */ | |
8275 | for (id = super->devlist; id; id = id->next) | |
8276 | if (is_gen_migration(id->dev)) | |
8277 | break; | |
8278 | if (id == NULL) | |
8279 | return 1; | |
8280 | ||
8281 | map_dest = get_imsm_map(id->dev, 0); | |
8282 | new_disks = map_dest->num_members; | |
6c3560c0 | 8283 | max_degradation = new_disks - imsm_num_data_members(id->dev, 0); |
276d77db AK |
8284 | |
8285 | read_offset = (unsigned long long) | |
8286 | __le32_to_cpu(migr_rec->ckpt_area_pba) * 512; | |
8287 | ||
8288 | write_offset = ((unsigned long long) | |
8289 | __le32_to_cpu(migr_rec->dest_1st_member_lba) + | |
75b69ea4 | 8290 | __le32_to_cpu(map_dest->pba_of_lba0)) * 512; |
276d77db AK |
8291 | |
8292 | unit_len = __le32_to_cpu(migr_rec->dest_depth_per_unit) * 512; | |
8293 | if (posix_memalign((void **)&buf, 512, unit_len) != 0) | |
8294 | goto abort; | |
8295 | targets = malloc(new_disks * sizeof(int)); | |
8296 | if (!targets) | |
8297 | goto abort; | |
8298 | ||
f627f5ad AK |
8299 | if (open_backup_targets(info, new_disks, targets)) { |
8300 | fprintf(stderr, | |
8301 | Name ": Cannot open some devices belonging to array.\n"); | |
8302 | goto abort; | |
8303 | } | |
276d77db AK |
8304 | |
8305 | for (i = 0; i < new_disks; i++) { | |
6c3560c0 AK |
8306 | if (targets[i] < 0) { |
8307 | skipped_disks++; | |
8308 | continue; | |
8309 | } | |
276d77db AK |
8310 | if (lseek64(targets[i], read_offset, SEEK_SET) < 0) { |
8311 | fprintf(stderr, | |
8312 | Name ": Cannot seek to block: %s\n", | |
8313 | strerror(errno)); | |
8314 | goto abort; | |
8315 | } | |
9ec11d1a | 8316 | if ((unsigned)read(targets[i], buf, unit_len) != unit_len) { |
276d77db AK |
8317 | fprintf(stderr, |
8318 | Name ": Cannot read copy area block: %s\n", | |
8319 | strerror(errno)); | |
8320 | goto abort; | |
8321 | } | |
8322 | if (lseek64(targets[i], write_offset, SEEK_SET) < 0) { | |
8323 | fprintf(stderr, | |
8324 | Name ": Cannot seek to block: %s\n", | |
8325 | strerror(errno)); | |
8326 | goto abort; | |
8327 | } | |
9ec11d1a | 8328 | if ((unsigned)write(targets[i], buf, unit_len) != unit_len) { |
276d77db AK |
8329 | fprintf(stderr, |
8330 | Name ": Cannot restore block: %s\n", | |
8331 | strerror(errno)); | |
8332 | goto abort; | |
8333 | } | |
8334 | } | |
8335 | ||
6c3560c0 AK |
8336 | if (skipped_disks > max_degradation) { |
8337 | fprintf(stderr, | |
8338 | Name ": Cannot restore data from backup." | |
8339 | " Too many failed disks\n"); | |
8340 | goto abort; | |
8341 | } | |
8342 | ||
befb629b AK |
8343 | if (save_checkpoint_imsm(st, info, UNIT_SRC_NORMAL)) { |
8344 | /* ignore error == 2, this can mean end of reshape here | |
8345 | */ | |
8346 | dprintf("imsm: Cannot write checkpoint to " | |
8347 | "migration record (UNIT_SRC_NORMAL) during restart\n"); | |
8348 | } else | |
276d77db | 8349 | retval = 0; |
276d77db AK |
8350 | |
8351 | abort: | |
8352 | if (targets) { | |
8353 | for (i = 0; i < new_disks; i++) | |
8354 | if (targets[i]) | |
8355 | close(targets[i]); | |
8356 | free(targets); | |
8357 | } | |
8358 | free(buf); | |
8359 | return retval; | |
8360 | } | |
8361 | ||
2cda7640 ML |
8362 | static char disk_by_path[] = "/dev/disk/by-path/"; |
8363 | ||
8364 | static const char *imsm_get_disk_controller_domain(const char *path) | |
8365 | { | |
2cda7640 | 8366 | char disk_path[PATH_MAX]; |
96234762 LM |
8367 | char *drv=NULL; |
8368 | struct stat st; | |
2cda7640 | 8369 | |
96234762 LM |
8370 | strncpy(disk_path, disk_by_path, PATH_MAX - 1); |
8371 | strncat(disk_path, path, PATH_MAX - strlen(disk_path) - 1); | |
8372 | if (stat(disk_path, &st) == 0) { | |
8373 | struct sys_dev* hba; | |
8374 | char *path=NULL; | |
8375 | ||
8376 | path = devt_to_devpath(st.st_rdev); | |
8377 | if (path == NULL) | |
8378 | return "unknown"; | |
8379 | hba = find_disk_attached_hba(-1, path); | |
8380 | if (hba && hba->type == SYS_DEV_SAS) | |
8381 | drv = "isci"; | |
8382 | else if (hba && hba->type == SYS_DEV_SATA) | |
8383 | drv = "ahci"; | |
8384 | else | |
8385 | drv = "unknown"; | |
8386 | dprintf("path: %s hba: %s attached: %s\n", | |
8387 | path, (hba) ? hba->path : "NULL", drv); | |
8388 | free(path); | |
8389 | if (hba) | |
8390 | free_sys_dev(&hba); | |
2cda7640 | 8391 | } |
96234762 | 8392 | return drv; |
2cda7640 ML |
8393 | } |
8394 | ||
78b10e66 N |
8395 | static int imsm_find_array_minor_by_subdev(int subdev, int container, int *minor) |
8396 | { | |
8397 | char subdev_name[20]; | |
8398 | struct mdstat_ent *mdstat; | |
8399 | ||
8400 | sprintf(subdev_name, "%d", subdev); | |
8401 | mdstat = mdstat_by_subdev(subdev_name, container); | |
8402 | if (!mdstat) | |
8403 | return -1; | |
8404 | ||
8405 | *minor = mdstat->devnum; | |
8406 | free_mdstat(mdstat); | |
8407 | return 0; | |
8408 | } | |
8409 | ||
8410 | static int imsm_reshape_is_allowed_on_container(struct supertype *st, | |
8411 | struct geo_params *geo, | |
8412 | int *old_raid_disks) | |
8413 | { | |
694575e7 KW |
8414 | /* currently we only support increasing the number of devices |
8415 | * for a container. This increases the number of device for each | |
8416 | * member array. They must all be RAID0 or RAID5. | |
8417 | */ | |
78b10e66 N |
8418 | int ret_val = 0; |
8419 | struct mdinfo *info, *member; | |
8420 | int devices_that_can_grow = 0; | |
8421 | ||
8422 | dprintf("imsm: imsm_reshape_is_allowed_on_container(ENTER): " | |
8423 | "st->devnum = (%i)\n", | |
8424 | st->devnum); | |
8425 | ||
8426 | if (geo->size != -1 || | |
8427 | geo->level != UnSet || | |
8428 | geo->layout != UnSet || | |
8429 | geo->chunksize != 0 || | |
8430 | geo->raid_disks == UnSet) { | |
8431 | dprintf("imsm: Container operation is allowed for " | |
8432 | "raid disks number change only.\n"); | |
8433 | return ret_val; | |
8434 | } | |
8435 | ||
8436 | info = container_content_imsm(st, NULL); | |
8437 | for (member = info; member; member = member->next) { | |
8438 | int result; | |
8439 | int minor; | |
8440 | ||
8441 | dprintf("imsm: checking device_num: %i\n", | |
8442 | member->container_member); | |
8443 | ||
d7d205bd | 8444 | if (geo->raid_disks <= member->array.raid_disks) { |
78b10e66 N |
8445 | /* we work on container for Online Capacity Expansion |
8446 | * only so raid_disks has to grow | |
8447 | */ | |
8448 | dprintf("imsm: for container operation raid disks " | |
8449 | "increase is required\n"); | |
8450 | break; | |
8451 | } | |
8452 | ||
8453 | if ((info->array.level != 0) && | |
8454 | (info->array.level != 5)) { | |
8455 | /* we cannot use this container with other raid level | |
8456 | */ | |
690aae1a | 8457 | dprintf("imsm: for container operation wrong" |
78b10e66 N |
8458 | " raid level (%i) detected\n", |
8459 | info->array.level); | |
8460 | break; | |
8461 | } else { | |
8462 | /* check for platform support | |
8463 | * for this raid level configuration | |
8464 | */ | |
8465 | struct intel_super *super = st->sb; | |
8466 | if (!is_raid_level_supported(super->orom, | |
8467 | member->array.level, | |
8468 | geo->raid_disks)) { | |
690aae1a | 8469 | dprintf("platform does not support raid%d with" |
78b10e66 N |
8470 | " %d disk%s\n", |
8471 | info->array.level, | |
8472 | geo->raid_disks, | |
8473 | geo->raid_disks > 1 ? "s" : ""); | |
8474 | break; | |
8475 | } | |
2a4a08e7 AK |
8476 | /* check if component size is aligned to chunk size |
8477 | */ | |
8478 | if (info->component_size % | |
8479 | (info->array.chunk_size/512)) { | |
8480 | dprintf("Component size is not aligned to " | |
8481 | "chunk size\n"); | |
8482 | break; | |
8483 | } | |
78b10e66 N |
8484 | } |
8485 | ||
8486 | if (*old_raid_disks && | |
8487 | info->array.raid_disks != *old_raid_disks) | |
8488 | break; | |
8489 | *old_raid_disks = info->array.raid_disks; | |
8490 | ||
8491 | /* All raid5 and raid0 volumes in container | |
8492 | * have to be ready for Online Capacity Expansion | |
8493 | * so they need to be assembled. We have already | |
8494 | * checked that no recovery etc is happening. | |
8495 | */ | |
8496 | result = imsm_find_array_minor_by_subdev(member->container_member, | |
8497 | st->container_dev, | |
8498 | &minor); | |
8499 | if (result < 0) { | |
8500 | dprintf("imsm: cannot find array\n"); | |
8501 | break; | |
8502 | } | |
8503 | devices_that_can_grow++; | |
8504 | } | |
8505 | sysfs_free(info); | |
8506 | if (!member && devices_that_can_grow) | |
8507 | ret_val = 1; | |
8508 | ||
8509 | if (ret_val) | |
8510 | dprintf("\tContainer operation allowed\n"); | |
8511 | else | |
8512 | dprintf("\tError: %i\n", ret_val); | |
8513 | ||
8514 | return ret_val; | |
8515 | } | |
8516 | ||
8517 | /* Function: get_spares_for_grow | |
8518 | * Description: Allocates memory and creates list of spare devices | |
8519 | * avaliable in container. Checks if spare drive size is acceptable. | |
8520 | * Parameters: Pointer to the supertype structure | |
8521 | * Returns: Pointer to the list of spare devices (mdinfo structure) on success, | |
8522 | * NULL if fail | |
8523 | */ | |
8524 | static struct mdinfo *get_spares_for_grow(struct supertype *st) | |
8525 | { | |
78b10e66 | 8526 | unsigned long long min_size = min_acceptable_spare_size_imsm(st); |
326727d9 | 8527 | return container_choose_spares(st, min_size, NULL, NULL, NULL, 0); |
78b10e66 N |
8528 | } |
8529 | ||
8530 | /****************************************************************************** | |
8531 | * function: imsm_create_metadata_update_for_reshape | |
8532 | * Function creates update for whole IMSM container. | |
8533 | * | |
8534 | ******************************************************************************/ | |
8535 | static int imsm_create_metadata_update_for_reshape( | |
8536 | struct supertype *st, | |
8537 | struct geo_params *geo, | |
8538 | int old_raid_disks, | |
8539 | struct imsm_update_reshape **updatep) | |
8540 | { | |
8541 | struct intel_super *super = st->sb; | |
8542 | struct imsm_super *mpb = super->anchor; | |
8543 | int update_memory_size = 0; | |
8544 | struct imsm_update_reshape *u = NULL; | |
8545 | struct mdinfo *spares = NULL; | |
8546 | int i; | |
8547 | int delta_disks = 0; | |
bbd24d86 | 8548 | struct mdinfo *dev; |
78b10e66 N |
8549 | |
8550 | dprintf("imsm_update_metadata_for_reshape(enter) raid_disks = %i\n", | |
8551 | geo->raid_disks); | |
8552 | ||
8553 | delta_disks = geo->raid_disks - old_raid_disks; | |
8554 | ||
8555 | /* size of all update data without anchor */ | |
8556 | update_memory_size = sizeof(struct imsm_update_reshape); | |
8557 | ||
8558 | /* now add space for spare disks that we need to add. */ | |
8559 | update_memory_size += sizeof(u->new_disks[0]) * (delta_disks - 1); | |
8560 | ||
8561 | u = calloc(1, update_memory_size); | |
8562 | if (u == NULL) { | |
8563 | dprintf("error: " | |
8564 | "cannot get memory for imsm_update_reshape update\n"); | |
8565 | return 0; | |
8566 | } | |
8567 | u->type = update_reshape_container_disks; | |
8568 | u->old_raid_disks = old_raid_disks; | |
8569 | u->new_raid_disks = geo->raid_disks; | |
8570 | ||
8571 | /* now get spare disks list | |
8572 | */ | |
8573 | spares = get_spares_for_grow(st); | |
8574 | ||
8575 | if (spares == NULL | |
8576 | || delta_disks > spares->array.spare_disks) { | |
e14e5960 KW |
8577 | fprintf(stderr, Name ": imsm: ERROR: Cannot get spare devices " |
8578 | "for %s.\n", geo->dev_name); | |
e4c72d1d | 8579 | i = -1; |
78b10e66 N |
8580 | goto abort; |
8581 | } | |
8582 | ||
8583 | /* we have got spares | |
8584 | * update disk list in imsm_disk list table in anchor | |
8585 | */ | |
8586 | dprintf("imsm: %i spares are available.\n\n", | |
8587 | spares->array.spare_disks); | |
8588 | ||
bbd24d86 | 8589 | dev = spares->devs; |
78b10e66 | 8590 | for (i = 0; i < delta_disks; i++) { |
78b10e66 N |
8591 | struct dl *dl; |
8592 | ||
bbd24d86 AK |
8593 | if (dev == NULL) |
8594 | break; | |
78b10e66 N |
8595 | u->new_disks[i] = makedev(dev->disk.major, |
8596 | dev->disk.minor); | |
8597 | dl = get_disk_super(super, dev->disk.major, dev->disk.minor); | |
ee4beede AK |
8598 | dl->index = mpb->num_disks; |
8599 | mpb->num_disks++; | |
bbd24d86 | 8600 | dev = dev->next; |
78b10e66 | 8601 | } |
78b10e66 N |
8602 | |
8603 | abort: | |
8604 | /* free spares | |
8605 | */ | |
8606 | sysfs_free(spares); | |
8607 | ||
d677e0b8 | 8608 | dprintf("imsm: reshape update preparation :"); |
78b10e66 | 8609 | if (i == delta_disks) { |
d677e0b8 | 8610 | dprintf(" OK\n"); |
78b10e66 N |
8611 | *updatep = u; |
8612 | return update_memory_size; | |
8613 | } | |
8614 | free(u); | |
d677e0b8 | 8615 | dprintf(" Error\n"); |
78b10e66 N |
8616 | |
8617 | return 0; | |
8618 | } | |
8619 | ||
48c5303a PC |
8620 | /****************************************************************************** |
8621 | * function: imsm_create_metadata_update_for_migration() | |
8622 | * Creates update for IMSM array. | |
8623 | * | |
8624 | ******************************************************************************/ | |
8625 | static int imsm_create_metadata_update_for_migration( | |
8626 | struct supertype *st, | |
8627 | struct geo_params *geo, | |
8628 | struct imsm_update_reshape_migration **updatep) | |
8629 | { | |
8630 | struct intel_super *super = st->sb; | |
8631 | int update_memory_size = 0; | |
8632 | struct imsm_update_reshape_migration *u = NULL; | |
8633 | struct imsm_dev *dev; | |
8634 | int previous_level = -1; | |
8635 | ||
8636 | dprintf("imsm_create_metadata_update_for_migration(enter)" | |
8637 | " New Level = %i\n", geo->level); | |
8638 | ||
8639 | /* size of all update data without anchor */ | |
8640 | update_memory_size = sizeof(struct imsm_update_reshape_migration); | |
8641 | ||
8642 | u = calloc(1, update_memory_size); | |
8643 | if (u == NULL) { | |
8644 | dprintf("error: cannot get memory for " | |
8645 | "imsm_create_metadata_update_for_migration\n"); | |
8646 | return 0; | |
8647 | } | |
8648 | u->type = update_reshape_migration; | |
8649 | u->subdev = super->current_vol; | |
8650 | u->new_level = geo->level; | |
8651 | u->new_layout = geo->layout; | |
8652 | u->new_raid_disks = u->old_raid_disks = geo->raid_disks; | |
8653 | u->new_disks[0] = -1; | |
4bba0439 | 8654 | u->new_chunksize = -1; |
48c5303a PC |
8655 | |
8656 | dev = get_imsm_dev(super, u->subdev); | |
8657 | if (dev) { | |
8658 | struct imsm_map *map; | |
8659 | ||
8660 | map = get_imsm_map(dev, 0); | |
4bba0439 PC |
8661 | if (map) { |
8662 | int current_chunk_size = | |
8663 | __le16_to_cpu(map->blocks_per_strip) / 2; | |
8664 | ||
8665 | if (geo->chunksize != current_chunk_size) { | |
8666 | u->new_chunksize = geo->chunksize / 1024; | |
8667 | dprintf("imsm: " | |
8668 | "chunk size change from %i to %i\n", | |
8669 | current_chunk_size, u->new_chunksize); | |
8670 | } | |
48c5303a | 8671 | previous_level = map->raid_level; |
4bba0439 | 8672 | } |
48c5303a PC |
8673 | } |
8674 | if ((geo->level == 5) && (previous_level == 0)) { | |
8675 | struct mdinfo *spares = NULL; | |
8676 | ||
8677 | u->new_raid_disks++; | |
8678 | spares = get_spares_for_grow(st); | |
8679 | if ((spares == NULL) || (spares->array.spare_disks < 1)) { | |
8680 | free(u); | |
8681 | sysfs_free(spares); | |
8682 | update_memory_size = 0; | |
8683 | dprintf("error: cannot get spare device " | |
8684 | "for requested migration"); | |
8685 | return 0; | |
8686 | } | |
8687 | sysfs_free(spares); | |
8688 | } | |
8689 | dprintf("imsm: reshape update preparation : OK\n"); | |
8690 | *updatep = u; | |
8691 | ||
8692 | return update_memory_size; | |
8693 | } | |
8694 | ||
8dd70bce AK |
8695 | static void imsm_update_metadata_locally(struct supertype *st, |
8696 | void *buf, int len) | |
8697 | { | |
8698 | struct metadata_update mu; | |
8699 | ||
8700 | mu.buf = buf; | |
8701 | mu.len = len; | |
8702 | mu.space = NULL; | |
8703 | mu.space_list = NULL; | |
8704 | mu.next = NULL; | |
8705 | imsm_prepare_update(st, &mu); | |
8706 | imsm_process_update(st, &mu); | |
8707 | ||
8708 | while (mu.space_list) { | |
8709 | void **space = mu.space_list; | |
8710 | mu.space_list = *space; | |
8711 | free(space); | |
8712 | } | |
8713 | } | |
78b10e66 | 8714 | |
471bceb6 | 8715 | /*************************************************************************** |
694575e7 | 8716 | * Function: imsm_analyze_change |
471bceb6 KW |
8717 | * Description: Function analyze change for single volume |
8718 | * and validate if transition is supported | |
694575e7 KW |
8719 | * Parameters: Geometry parameters, supertype structure |
8720 | * Returns: Operation type code on success, -1 if fail | |
471bceb6 KW |
8721 | ****************************************************************************/ |
8722 | enum imsm_reshape_type imsm_analyze_change(struct supertype *st, | |
8723 | struct geo_params *geo) | |
694575e7 | 8724 | { |
471bceb6 KW |
8725 | struct mdinfo info; |
8726 | int change = -1; | |
8727 | int check_devs = 0; | |
c21e737b | 8728 | int chunk; |
e91a3bad LM |
8729 | int devNumChange=0; |
8730 | int layout = -1; | |
471bceb6 KW |
8731 | |
8732 | getinfo_super_imsm_volume(st, &info, NULL); | |
471bceb6 KW |
8733 | if ((geo->level != info.array.level) && |
8734 | (geo->level >= 0) && | |
8735 | (geo->level != UnSet)) { | |
8736 | switch (info.array.level) { | |
8737 | case 0: | |
8738 | if (geo->level == 5) { | |
b5347799 | 8739 | change = CH_MIGRATION; |
e13ce846 AK |
8740 | if (geo->layout != ALGORITHM_LEFT_ASYMMETRIC) { |
8741 | fprintf(stderr, | |
8742 | Name " Error. Requested Layout " | |
8743 | "not supported (left-asymmetric layout " | |
8744 | "is supported only)!\n"); | |
8745 | change = -1; | |
8746 | goto analyse_change_exit; | |
8747 | } | |
e91a3bad | 8748 | layout = geo->layout; |
471bceb6 | 8749 | check_devs = 1; |
e91a3bad LM |
8750 | devNumChange = 1; /* parity disk added */ |
8751 | } else if (geo->level == 10) { | |
471bceb6 KW |
8752 | change = CH_TAKEOVER; |
8753 | check_devs = 1; | |
e91a3bad LM |
8754 | devNumChange = 2; /* two mirrors added */ |
8755 | layout = 0x102; /* imsm supported layout */ | |
471bceb6 | 8756 | } |
dfe77a9e KW |
8757 | break; |
8758 | case 1: | |
471bceb6 KW |
8759 | case 10: |
8760 | if (geo->level == 0) { | |
8761 | change = CH_TAKEOVER; | |
8762 | check_devs = 1; | |
e91a3bad LM |
8763 | devNumChange = -(geo->raid_disks/2); |
8764 | layout = 0; /* imsm raid0 layout */ | |
471bceb6 KW |
8765 | } |
8766 | break; | |
8767 | } | |
8768 | if (change == -1) { | |
8769 | fprintf(stderr, | |
8770 | Name " Error. Level Migration from %d to %d " | |
8771 | "not supported!\n", | |
8772 | info.array.level, geo->level); | |
8773 | goto analyse_change_exit; | |
8774 | } | |
8775 | } else | |
8776 | geo->level = info.array.level; | |
8777 | ||
8778 | if ((geo->layout != info.array.layout) | |
8779 | && ((geo->layout != UnSet) && (geo->layout != -1))) { | |
b5347799 | 8780 | change = CH_MIGRATION; |
471bceb6 KW |
8781 | if ((info.array.layout == 0) |
8782 | && (info.array.level == 5) | |
8783 | && (geo->layout == 5)) { | |
8784 | /* reshape 5 -> 4 */ | |
8785 | } else if ((info.array.layout == 5) | |
8786 | && (info.array.level == 5) | |
8787 | && (geo->layout == 0)) { | |
8788 | /* reshape 4 -> 5 */ | |
8789 | geo->layout = 0; | |
8790 | geo->level = 5; | |
8791 | } else { | |
8792 | fprintf(stderr, | |
8793 | Name " Error. Layout Migration from %d to %d " | |
8794 | "not supported!\n", | |
8795 | info.array.layout, geo->layout); | |
8796 | change = -1; | |
8797 | goto analyse_change_exit; | |
8798 | } | |
8799 | } else | |
8800 | geo->layout = info.array.layout; | |
8801 | ||
8802 | if ((geo->chunksize > 0) && (geo->chunksize != UnSet) | |
8803 | && (geo->chunksize != info.array.chunk_size)) | |
b5347799 | 8804 | change = CH_MIGRATION; |
471bceb6 KW |
8805 | else |
8806 | geo->chunksize = info.array.chunk_size; | |
8807 | ||
c21e737b | 8808 | chunk = geo->chunksize / 1024; |
471bceb6 KW |
8809 | if (!validate_geometry_imsm(st, |
8810 | geo->level, | |
e91a3bad LM |
8811 | layout, |
8812 | geo->raid_disks + devNumChange, | |
c21e737b | 8813 | &chunk, |
471bceb6 KW |
8814 | geo->size, |
8815 | 0, 0, 1)) | |
8816 | change = -1; | |
8817 | ||
8818 | if (check_devs) { | |
8819 | struct intel_super *super = st->sb; | |
8820 | struct imsm_super *mpb = super->anchor; | |
8821 | ||
8822 | if (mpb->num_raid_devs > 1) { | |
8823 | fprintf(stderr, | |
8824 | Name " Error. Cannot perform operation on %s" | |
8825 | "- for this operation it MUST be single " | |
8826 | "array in container\n", | |
8827 | geo->dev_name); | |
8828 | change = -1; | |
8829 | } | |
8830 | } | |
8831 | ||
8832 | analyse_change_exit: | |
8833 | ||
8834 | return change; | |
694575e7 KW |
8835 | } |
8836 | ||
bb025c2f KW |
8837 | int imsm_takeover(struct supertype *st, struct geo_params *geo) |
8838 | { | |
8839 | struct intel_super *super = st->sb; | |
8840 | struct imsm_update_takeover *u; | |
8841 | ||
8842 | u = malloc(sizeof(struct imsm_update_takeover)); | |
8843 | if (u == NULL) | |
8844 | return 1; | |
8845 | ||
8846 | u->type = update_takeover; | |
8847 | u->subarray = super->current_vol; | |
8848 | ||
8849 | /* 10->0 transition */ | |
8850 | if (geo->level == 0) | |
8851 | u->direction = R10_TO_R0; | |
8852 | ||
0529c688 KW |
8853 | /* 0->10 transition */ |
8854 | if (geo->level == 10) | |
8855 | u->direction = R0_TO_R10; | |
8856 | ||
bb025c2f KW |
8857 | /* update metadata locally */ |
8858 | imsm_update_metadata_locally(st, u, | |
8859 | sizeof(struct imsm_update_takeover)); | |
8860 | /* and possibly remotely */ | |
8861 | if (st->update_tail) | |
8862 | append_metadata_update(st, u, | |
8863 | sizeof(struct imsm_update_takeover)); | |
8864 | else | |
8865 | free(u); | |
8866 | ||
8867 | return 0; | |
8868 | } | |
8869 | ||
78b10e66 N |
8870 | static int imsm_reshape_super(struct supertype *st, long long size, int level, |
8871 | int layout, int chunksize, int raid_disks, | |
41784c88 AK |
8872 | int delta_disks, char *backup, char *dev, |
8873 | int verbose) | |
78b10e66 | 8874 | { |
78b10e66 N |
8875 | int ret_val = 1; |
8876 | struct geo_params geo; | |
8877 | ||
8878 | dprintf("imsm: reshape_super called.\n"); | |
8879 | ||
71204a50 | 8880 | memset(&geo, 0, sizeof(struct geo_params)); |
78b10e66 N |
8881 | |
8882 | geo.dev_name = dev; | |
694575e7 | 8883 | geo.dev_id = st->devnum; |
78b10e66 N |
8884 | geo.size = size; |
8885 | geo.level = level; | |
8886 | geo.layout = layout; | |
8887 | geo.chunksize = chunksize; | |
8888 | geo.raid_disks = raid_disks; | |
41784c88 AK |
8889 | if (delta_disks != UnSet) |
8890 | geo.raid_disks += delta_disks; | |
78b10e66 N |
8891 | |
8892 | dprintf("\tfor level : %i\n", geo.level); | |
8893 | dprintf("\tfor raid_disks : %i\n", geo.raid_disks); | |
8894 | ||
8895 | if (experimental() == 0) | |
8896 | return ret_val; | |
8897 | ||
78b10e66 | 8898 | if (st->container_dev == st->devnum) { |
694575e7 KW |
8899 | /* On container level we can only increase number of devices. */ |
8900 | dprintf("imsm: info: Container operation\n"); | |
78b10e66 | 8901 | int old_raid_disks = 0; |
6dc0be30 | 8902 | |
78b10e66 N |
8903 | if (imsm_reshape_is_allowed_on_container( |
8904 | st, &geo, &old_raid_disks)) { | |
8905 | struct imsm_update_reshape *u = NULL; | |
8906 | int len; | |
8907 | ||
8908 | len = imsm_create_metadata_update_for_reshape( | |
8909 | st, &geo, old_raid_disks, &u); | |
8910 | ||
ed08d51c AK |
8911 | if (len <= 0) { |
8912 | dprintf("imsm: Cannot prepare update\n"); | |
8913 | goto exit_imsm_reshape_super; | |
8914 | } | |
8915 | ||
8dd70bce AK |
8916 | ret_val = 0; |
8917 | /* update metadata locally */ | |
8918 | imsm_update_metadata_locally(st, u, len); | |
8919 | /* and possibly remotely */ | |
8920 | if (st->update_tail) | |
8921 | append_metadata_update(st, u, len); | |
8922 | else | |
ed08d51c | 8923 | free(u); |
8dd70bce | 8924 | |
694575e7 | 8925 | } else { |
e7ff7e40 AK |
8926 | fprintf(stderr, Name ": (imsm) Operation " |
8927 | "is not allowed on this container\n"); | |
694575e7 KW |
8928 | } |
8929 | } else { | |
8930 | /* On volume level we support following operations | |
471bceb6 KW |
8931 | * - takeover: raid10 -> raid0; raid0 -> raid10 |
8932 | * - chunk size migration | |
8933 | * - migration: raid5 -> raid0; raid0 -> raid5 | |
8934 | */ | |
8935 | struct intel_super *super = st->sb; | |
8936 | struct intel_dev *dev = super->devlist; | |
8937 | int change, devnum; | |
694575e7 | 8938 | dprintf("imsm: info: Volume operation\n"); |
471bceb6 KW |
8939 | /* find requested device */ |
8940 | while (dev) { | |
19986c72 MB |
8941 | if (imsm_find_array_minor_by_subdev( |
8942 | dev->index, st->container_dev, &devnum) == 0 | |
8943 | && devnum == geo.dev_id) | |
471bceb6 KW |
8944 | break; |
8945 | dev = dev->next; | |
8946 | } | |
8947 | if (dev == NULL) { | |
8948 | fprintf(stderr, Name " Cannot find %s (%i) subarray\n", | |
8949 | geo.dev_name, geo.dev_id); | |
8950 | goto exit_imsm_reshape_super; | |
8951 | } | |
8952 | super->current_vol = dev->index; | |
694575e7 KW |
8953 | change = imsm_analyze_change(st, &geo); |
8954 | switch (change) { | |
471bceb6 | 8955 | case CH_TAKEOVER: |
bb025c2f | 8956 | ret_val = imsm_takeover(st, &geo); |
694575e7 | 8957 | break; |
48c5303a PC |
8958 | case CH_MIGRATION: { |
8959 | struct imsm_update_reshape_migration *u = NULL; | |
8960 | int len = | |
8961 | imsm_create_metadata_update_for_migration( | |
8962 | st, &geo, &u); | |
8963 | if (len < 1) { | |
8964 | dprintf("imsm: " | |
8965 | "Cannot prepare update\n"); | |
8966 | break; | |
8967 | } | |
471bceb6 | 8968 | ret_val = 0; |
48c5303a PC |
8969 | /* update metadata locally */ |
8970 | imsm_update_metadata_locally(st, u, len); | |
8971 | /* and possibly remotely */ | |
8972 | if (st->update_tail) | |
8973 | append_metadata_update(st, u, len); | |
8974 | else | |
8975 | free(u); | |
8976 | } | |
8977 | break; | |
471bceb6 KW |
8978 | default: |
8979 | ret_val = 1; | |
694575e7 | 8980 | } |
694575e7 | 8981 | } |
78b10e66 | 8982 | |
ed08d51c | 8983 | exit_imsm_reshape_super: |
78b10e66 N |
8984 | dprintf("imsm: reshape_super Exit code = %i\n", ret_val); |
8985 | return ret_val; | |
8986 | } | |
2cda7640 | 8987 | |
eee67a47 AK |
8988 | /******************************************************************************* |
8989 | * Function: wait_for_reshape_imsm | |
8990 | * Description: Function writes new sync_max value and waits until | |
8991 | * reshape process reach new position | |
8992 | * Parameters: | |
8993 | * sra : general array info | |
eee67a47 AK |
8994 | * ndata : number of disks in new array's layout |
8995 | * Returns: | |
8996 | * 0 : success, | |
8997 | * 1 : there is no reshape in progress, | |
8998 | * -1 : fail | |
8999 | ******************************************************************************/ | |
ae9f01f8 | 9000 | int wait_for_reshape_imsm(struct mdinfo *sra, int ndata) |
eee67a47 AK |
9001 | { |
9002 | int fd = sysfs_get_fd(sra, NULL, "reshape_position"); | |
9003 | unsigned long long completed; | |
ae9f01f8 AK |
9004 | /* to_complete : new sync_max position */ |
9005 | unsigned long long to_complete = sra->reshape_progress; | |
9006 | unsigned long long position_to_set = to_complete / ndata; | |
eee67a47 | 9007 | |
ae9f01f8 AK |
9008 | if (fd < 0) { |
9009 | dprintf("imsm: wait_for_reshape_imsm() " | |
9010 | "cannot open reshape_position\n"); | |
eee67a47 | 9011 | return 1; |
ae9f01f8 | 9012 | } |
eee67a47 | 9013 | |
ae9f01f8 AK |
9014 | if (sysfs_fd_get_ll(fd, &completed) < 0) { |
9015 | dprintf("imsm: wait_for_reshape_imsm() " | |
9016 | "cannot read reshape_position (no reshape in progres)\n"); | |
9017 | close(fd); | |
9018 | return 0; | |
9019 | } | |
eee67a47 | 9020 | |
ae9f01f8 AK |
9021 | if (completed > to_complete) { |
9022 | dprintf("imsm: wait_for_reshape_imsm() " | |
9023 | "wrong next position to set %llu (%llu)\n", | |
9024 | to_complete, completed); | |
9025 | close(fd); | |
9026 | return -1; | |
9027 | } | |
9028 | dprintf("Position set: %llu\n", position_to_set); | |
9029 | if (sysfs_set_num(sra, NULL, "sync_max", | |
9030 | position_to_set) != 0) { | |
9031 | dprintf("imsm: wait_for_reshape_imsm() " | |
9032 | "cannot set reshape position to %llu\n", | |
9033 | position_to_set); | |
9034 | close(fd); | |
9035 | return -1; | |
eee67a47 AK |
9036 | } |
9037 | ||
eee67a47 AK |
9038 | do { |
9039 | char action[20]; | |
9040 | fd_set rfds; | |
9041 | FD_ZERO(&rfds); | |
9042 | FD_SET(fd, &rfds); | |
a47e44fb AK |
9043 | select(fd+1, &rfds, NULL, NULL, NULL); |
9044 | if (sysfs_get_str(sra, NULL, "sync_action", | |
9045 | action, 20) > 0 && | |
9046 | strncmp(action, "reshape", 7) != 0) | |
9047 | break; | |
eee67a47 | 9048 | if (sysfs_fd_get_ll(fd, &completed) < 0) { |
ae9f01f8 AK |
9049 | dprintf("imsm: wait_for_reshape_imsm() " |
9050 | "cannot read reshape_position (in loop)\n"); | |
eee67a47 AK |
9051 | close(fd); |
9052 | return 1; | |
9053 | } | |
eee67a47 AK |
9054 | } while (completed < to_complete); |
9055 | close(fd); | |
9056 | return 0; | |
9057 | ||
9058 | } | |
9059 | ||
b915c95f AK |
9060 | /******************************************************************************* |
9061 | * Function: check_degradation_change | |
9062 | * Description: Check that array hasn't become failed. | |
9063 | * Parameters: | |
9064 | * info : for sysfs access | |
9065 | * sources : source disks descriptors | |
9066 | * degraded: previous degradation level | |
9067 | * Returns: | |
9068 | * degradation level | |
9069 | ******************************************************************************/ | |
9070 | int check_degradation_change(struct mdinfo *info, | |
9071 | int *sources, | |
9072 | int degraded) | |
9073 | { | |
9074 | unsigned long long new_degraded; | |
9075 | sysfs_get_ll(info, NULL, "degraded", &new_degraded); | |
9076 | if (new_degraded != (unsigned long long)degraded) { | |
9077 | /* check each device to ensure it is still working */ | |
9078 | struct mdinfo *sd; | |
9079 | new_degraded = 0; | |
9080 | for (sd = info->devs ; sd ; sd = sd->next) { | |
9081 | if (sd->disk.state & (1<<MD_DISK_FAULTY)) | |
9082 | continue; | |
9083 | if (sd->disk.state & (1<<MD_DISK_SYNC)) { | |
9084 | char sbuf[20]; | |
9085 | if (sysfs_get_str(info, | |
9086 | sd, "state", sbuf, 20) < 0 || | |
9087 | strstr(sbuf, "faulty") || | |
9088 | strstr(sbuf, "in_sync") == NULL) { | |
9089 | /* this device is dead */ | |
9090 | sd->disk.state = (1<<MD_DISK_FAULTY); | |
9091 | if (sd->disk.raid_disk >= 0 && | |
9092 | sources[sd->disk.raid_disk] >= 0) { | |
9093 | close(sources[ | |
9094 | sd->disk.raid_disk]); | |
9095 | sources[sd->disk.raid_disk] = | |
9096 | -1; | |
9097 | } | |
9098 | new_degraded++; | |
9099 | } | |
9100 | } | |
9101 | } | |
9102 | } | |
9103 | ||
9104 | return new_degraded; | |
9105 | } | |
9106 | ||
10f22854 AK |
9107 | /******************************************************************************* |
9108 | * Function: imsm_manage_reshape | |
9109 | * Description: Function finds array under reshape and it manages reshape | |
9110 | * process. It creates stripes backups (if required) and sets | |
9111 | * checheckpoits. | |
9112 | * Parameters: | |
9113 | * afd : Backup handle (nattive) - not used | |
9114 | * sra : general array info | |
9115 | * reshape : reshape parameters - not used | |
9116 | * st : supertype structure | |
9117 | * blocks : size of critical section [blocks] | |
9118 | * fds : table of source device descriptor | |
9119 | * offsets : start of array (offest per devices) | |
9120 | * dests : not used | |
9121 | * destfd : table of destination device descriptor | |
9122 | * destoffsets : table of destination offsets (per device) | |
9123 | * Returns: | |
9124 | * 1 : success, reshape is done | |
9125 | * 0 : fail | |
9126 | ******************************************************************************/ | |
999b4972 N |
9127 | static int imsm_manage_reshape( |
9128 | int afd, struct mdinfo *sra, struct reshape *reshape, | |
10f22854 | 9129 | struct supertype *st, unsigned long backup_blocks, |
999b4972 N |
9130 | int *fds, unsigned long long *offsets, |
9131 | int dests, int *destfd, unsigned long long *destoffsets) | |
9132 | { | |
10f22854 AK |
9133 | int ret_val = 0; |
9134 | struct intel_super *super = st->sb; | |
9135 | struct intel_dev *dv = NULL; | |
9136 | struct imsm_dev *dev = NULL; | |
a6b6d984 | 9137 | struct imsm_map *map_src; |
10f22854 AK |
9138 | int migr_vol_qan = 0; |
9139 | int ndata, odata; /* [bytes] */ | |
9140 | int chunk; /* [bytes] */ | |
9141 | struct migr_record *migr_rec; | |
9142 | char *buf = NULL; | |
9143 | unsigned int buf_size; /* [bytes] */ | |
9144 | unsigned long long max_position; /* array size [bytes] */ | |
9145 | unsigned long long next_step; /* [blocks]/[bytes] */ | |
9146 | unsigned long long old_data_stripe_length; | |
10f22854 AK |
9147 | unsigned long long start_src; /* [bytes] */ |
9148 | unsigned long long start; /* [bytes] */ | |
9149 | unsigned long long start_buf_shift; /* [bytes] */ | |
b915c95f | 9150 | int degraded = 0; |
ab724b98 | 9151 | int source_layout = 0; |
10f22854 | 9152 | |
1ab242d8 | 9153 | if (!fds || !offsets || !sra) |
10f22854 AK |
9154 | goto abort; |
9155 | ||
9156 | /* Find volume during the reshape */ | |
9157 | for (dv = super->devlist; dv; dv = dv->next) { | |
9158 | if (dv->dev->vol.migr_type == MIGR_GEN_MIGR | |
9159 | && dv->dev->vol.migr_state == 1) { | |
9160 | dev = dv->dev; | |
9161 | migr_vol_qan++; | |
9162 | } | |
9163 | } | |
9164 | /* Only one volume can migrate at the same time */ | |
9165 | if (migr_vol_qan != 1) { | |
9166 | fprintf(stderr, Name " : %s", migr_vol_qan ? | |
9167 | "Number of migrating volumes greater than 1\n" : | |
9168 | "There is no volume during migrationg\n"); | |
9169 | goto abort; | |
9170 | } | |
9171 | ||
9172 | map_src = get_imsm_map(dev, 1); | |
9173 | if (map_src == NULL) | |
9174 | goto abort; | |
10f22854 AK |
9175 | |
9176 | ndata = imsm_num_data_members(dev, 0); | |
9177 | odata = imsm_num_data_members(dev, 1); | |
9178 | ||
7b1ab482 | 9179 | chunk = __le16_to_cpu(map_src->blocks_per_strip) * 512; |
10f22854 AK |
9180 | old_data_stripe_length = odata * chunk; |
9181 | ||
9182 | migr_rec = super->migr_rec; | |
9183 | ||
10f22854 AK |
9184 | /* initialize migration record for start condition */ |
9185 | if (sra->reshape_progress == 0) | |
9186 | init_migr_record_imsm(st, dev, sra); | |
b2c59438 AK |
9187 | else { |
9188 | if (__le32_to_cpu(migr_rec->rec_status) != UNIT_SRC_NORMAL) { | |
9189 | dprintf("imsm: cannot restart migration when data " | |
9190 | "are present in copy area.\n"); | |
9191 | goto abort; | |
9192 | } | |
9193 | } | |
10f22854 AK |
9194 | |
9195 | /* size for data */ | |
9196 | buf_size = __le32_to_cpu(migr_rec->blocks_per_unit) * 512; | |
9197 | /* extend buffer size for parity disk */ | |
9198 | buf_size += __le32_to_cpu(migr_rec->dest_depth_per_unit) * 512; | |
9199 | /* add space for stripe aligment */ | |
9200 | buf_size += old_data_stripe_length; | |
9201 | if (posix_memalign((void **)&buf, 4096, buf_size)) { | |
9202 | dprintf("imsm: Cannot allocate checpoint buffer\n"); | |
9203 | goto abort; | |
9204 | } | |
9205 | ||
3ef4403c | 9206 | max_position = sra->component_size * ndata; |
68eb8bc6 | 9207 | source_layout = imsm_level_to_layout(map_src->raid_level); |
10f22854 AK |
9208 | |
9209 | while (__le32_to_cpu(migr_rec->curr_migr_unit) < | |
9210 | __le32_to_cpu(migr_rec->num_migr_units)) { | |
9211 | /* current reshape position [blocks] */ | |
9212 | unsigned long long current_position = | |
9213 | __le32_to_cpu(migr_rec->blocks_per_unit) | |
9214 | * __le32_to_cpu(migr_rec->curr_migr_unit); | |
9215 | unsigned long long border; | |
9216 | ||
b915c95f AK |
9217 | /* Check that array hasn't become failed. |
9218 | */ | |
9219 | degraded = check_degradation_change(sra, fds, degraded); | |
9220 | if (degraded > 1) { | |
9221 | dprintf("imsm: Abort reshape due to degradation" | |
9222 | " level (%i)\n", degraded); | |
9223 | goto abort; | |
9224 | } | |
9225 | ||
10f22854 AK |
9226 | next_step = __le32_to_cpu(migr_rec->blocks_per_unit); |
9227 | ||
9228 | if ((current_position + next_step) > max_position) | |
9229 | next_step = max_position - current_position; | |
9230 | ||
92144abf | 9231 | start = current_position * 512; |
10f22854 AK |
9232 | |
9233 | /* allign reading start to old geometry */ | |
9234 | start_buf_shift = start % old_data_stripe_length; | |
9235 | start_src = start - start_buf_shift; | |
9236 | ||
9237 | border = (start_src / odata) - (start / ndata); | |
9238 | border /= 512; | |
9239 | if (border <= __le32_to_cpu(migr_rec->dest_depth_per_unit)) { | |
9240 | /* save critical stripes to buf | |
9241 | * start - start address of current unit | |
9242 | * to backup [bytes] | |
9243 | * start_src - start address of current unit | |
9244 | * to backup alligned to source array | |
9245 | * [bytes] | |
9246 | */ | |
9247 | unsigned long long next_step_filler = 0; | |
9248 | unsigned long long copy_length = next_step * 512; | |
9249 | ||
9250 | /* allign copy area length to stripe in old geometry */ | |
9251 | next_step_filler = ((copy_length + start_buf_shift) | |
9252 | % old_data_stripe_length); | |
9253 | if (next_step_filler) | |
9254 | next_step_filler = (old_data_stripe_length | |
9255 | - next_step_filler); | |
9256 | dprintf("save_stripes() parameters: start = %llu," | |
9257 | "\tstart_src = %llu,\tnext_step*512 = %llu," | |
9258 | "\tstart_in_buf_shift = %llu," | |
9259 | "\tnext_step_filler = %llu\n", | |
9260 | start, start_src, copy_length, | |
9261 | start_buf_shift, next_step_filler); | |
9262 | ||
9263 | if (save_stripes(fds, offsets, map_src->num_members, | |
ab724b98 AK |
9264 | chunk, map_src->raid_level, |
9265 | source_layout, 0, NULL, start_src, | |
10f22854 AK |
9266 | copy_length + |
9267 | next_step_filler + start_buf_shift, | |
9268 | buf)) { | |
9269 | dprintf("imsm: Cannot save stripes" | |
9270 | " to buffer\n"); | |
9271 | goto abort; | |
9272 | } | |
9273 | /* Convert data to destination format and store it | |
9274 | * in backup general migration area | |
9275 | */ | |
9276 | if (save_backup_imsm(st, dev, sra, | |
aea93171 | 9277 | buf + start_buf_shift, copy_length)) { |
10f22854 AK |
9278 | dprintf("imsm: Cannot save stripes to " |
9279 | "target devices\n"); | |
9280 | goto abort; | |
9281 | } | |
9282 | if (save_checkpoint_imsm(st, sra, | |
9283 | UNIT_SRC_IN_CP_AREA)) { | |
9284 | dprintf("imsm: Cannot write checkpoint to " | |
9285 | "migration record (UNIT_SRC_IN_CP_AREA)\n"); | |
9286 | goto abort; | |
9287 | } | |
8016a6d4 AK |
9288 | } else { |
9289 | /* set next step to use whole border area */ | |
9290 | border /= next_step; | |
9291 | if (border > 1) | |
9292 | next_step *= border; | |
10f22854 AK |
9293 | } |
9294 | /* When data backed up, checkpoint stored, | |
9295 | * kick the kernel to reshape unit of data | |
9296 | */ | |
9297 | next_step = next_step + sra->reshape_progress; | |
8016a6d4 AK |
9298 | /* limit next step to array max position */ |
9299 | if (next_step > max_position) | |
9300 | next_step = max_position; | |
10f22854 AK |
9301 | sysfs_set_num(sra, NULL, "suspend_lo", sra->reshape_progress); |
9302 | sysfs_set_num(sra, NULL, "suspend_hi", next_step); | |
ae9f01f8 | 9303 | sra->reshape_progress = next_step; |
10f22854 AK |
9304 | |
9305 | /* wait until reshape finish */ | |
ae9f01f8 | 9306 | if (wait_for_reshape_imsm(sra, ndata) < 0) { |
c47b0ff6 AK |
9307 | dprintf("wait_for_reshape_imsm returned error!\n"); |
9308 | goto abort; | |
9309 | } | |
10f22854 | 9310 | |
0228d92c AK |
9311 | if (save_checkpoint_imsm(st, sra, UNIT_SRC_NORMAL) == 1) { |
9312 | /* ignore error == 2, this can mean end of reshape here | |
9313 | */ | |
10f22854 AK |
9314 | dprintf("imsm: Cannot write checkpoint to " |
9315 | "migration record (UNIT_SRC_NORMAL)\n"); | |
9316 | goto abort; | |
9317 | } | |
9318 | ||
9319 | } | |
9320 | ||
9321 | /* return '1' if done */ | |
9322 | ret_val = 1; | |
9323 | abort: | |
9324 | free(buf); | |
9325 | abort_reshape(sra); | |
9326 | ||
9327 | return ret_val; | |
999b4972 | 9328 | } |
71204a50 | 9329 | #endif /* MDASSEMBLE */ |
999b4972 | 9330 | |
cdddbdbc DW |
9331 | struct superswitch super_imsm = { |
9332 | #ifndef MDASSEMBLE | |
9333 | .examine_super = examine_super_imsm, | |
9334 | .brief_examine_super = brief_examine_super_imsm, | |
4737ae25 | 9335 | .brief_examine_subarrays = brief_examine_subarrays_imsm, |
9d84c8ea | 9336 | .export_examine_super = export_examine_super_imsm, |
cdddbdbc DW |
9337 | .detail_super = detail_super_imsm, |
9338 | .brief_detail_super = brief_detail_super_imsm, | |
bf5a934a | 9339 | .write_init_super = write_init_super_imsm, |
0e600426 N |
9340 | .validate_geometry = validate_geometry_imsm, |
9341 | .add_to_super = add_to_super_imsm, | |
1a64be56 | 9342 | .remove_from_super = remove_from_super_imsm, |
d665cc31 | 9343 | .detail_platform = detail_platform_imsm, |
33414a01 | 9344 | .kill_subarray = kill_subarray_imsm, |
aa534678 | 9345 | .update_subarray = update_subarray_imsm, |
2b959fbf | 9346 | .load_container = load_container_imsm, |
71204a50 N |
9347 | .default_geometry = default_geometry_imsm, |
9348 | .get_disk_controller_domain = imsm_get_disk_controller_domain, | |
9349 | .reshape_super = imsm_reshape_super, | |
9350 | .manage_reshape = imsm_manage_reshape, | |
9e2d750d | 9351 | .recover_backup = recover_backup_imsm, |
cdddbdbc DW |
9352 | #endif |
9353 | .match_home = match_home_imsm, | |
9354 | .uuid_from_super= uuid_from_super_imsm, | |
9355 | .getinfo_super = getinfo_super_imsm, | |
5c4cd5da | 9356 | .getinfo_super_disks = getinfo_super_disks_imsm, |
cdddbdbc DW |
9357 | .update_super = update_super_imsm, |
9358 | ||
9359 | .avail_size = avail_size_imsm, | |
80e7f8c3 | 9360 | .min_acceptable_spare_size = min_acceptable_spare_size_imsm, |
cdddbdbc DW |
9361 | |
9362 | .compare_super = compare_super_imsm, | |
9363 | ||
9364 | .load_super = load_super_imsm, | |
bf5a934a | 9365 | .init_super = init_super_imsm, |
e683ca88 | 9366 | .store_super = store_super_imsm, |
cdddbdbc DW |
9367 | .free_super = free_super_imsm, |
9368 | .match_metadata_desc = match_metadata_desc_imsm, | |
bf5a934a | 9369 | .container_content = container_content_imsm, |
cdddbdbc | 9370 | |
276d77db | 9371 | |
cdddbdbc | 9372 | .external = 1, |
4cce4069 | 9373 | .name = "imsm", |
845dea95 | 9374 | |
0e600426 | 9375 | #ifndef MDASSEMBLE |
845dea95 NB |
9376 | /* for mdmon */ |
9377 | .open_new = imsm_open_new, | |
ed9d66aa | 9378 | .set_array_state= imsm_set_array_state, |
845dea95 NB |
9379 | .set_disk = imsm_set_disk, |
9380 | .sync_metadata = imsm_sync_metadata, | |
88758e9d | 9381 | .activate_spare = imsm_activate_spare, |
e8319a19 | 9382 | .process_update = imsm_process_update, |
8273f55e | 9383 | .prepare_update = imsm_prepare_update, |
0e600426 | 9384 | #endif /* MDASSEMBLE */ |
cdddbdbc | 9385 | }; |