]>
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 |
f36a9ecd | 93 | #define MAX_SECTOR_SIZE 4096 |
cdddbdbc DW |
94 | |
95 | /* Disk configuration info. */ | |
96 | #define IMSM_MAX_DEVICES 255 | |
97 | struct imsm_disk { | |
98 | __u8 serial[MAX_RAID_SERIAL_LEN];/* 0xD8 - 0xE7 ascii serial number */ | |
5551b113 | 99 | __u32 total_blocks_lo; /* 0xE8 - 0xEB total blocks lo */ |
cdddbdbc | 100 | __u32 scsi_id; /* 0xEC - 0xEF scsi ID */ |
f2f27e63 DW |
101 | #define SPARE_DISK __cpu_to_le32(0x01) /* Spare */ |
102 | #define CONFIGURED_DISK __cpu_to_le32(0x02) /* Member of some RaidDev */ | |
103 | #define FAILED_DISK __cpu_to_le32(0x04) /* Permanent failure */ | |
cdddbdbc | 104 | __u32 status; /* 0xF0 - 0xF3 */ |
1011e834 | 105 | __u32 owner_cfg_num; /* which config 0,1,2... owns this disk */ |
5551b113 CA |
106 | __u32 total_blocks_hi; /* 0xF4 - 0xF5 total blocks hi */ |
107 | #define IMSM_DISK_FILLERS 3 | |
108 | __u32 filler[IMSM_DISK_FILLERS]; /* 0xF5 - 0x107 MPB_DISK_FILLERS for future expansion */ | |
cdddbdbc DW |
109 | }; |
110 | ||
3b451610 AK |
111 | /* map selector for map managment |
112 | */ | |
238c0a71 AK |
113 | #define MAP_0 0 |
114 | #define MAP_1 1 | |
115 | #define MAP_X -1 | |
3b451610 | 116 | |
cdddbdbc DW |
117 | /* RAID map configuration infos. */ |
118 | struct imsm_map { | |
5551b113 CA |
119 | __u32 pba_of_lba0_lo; /* start address of partition */ |
120 | __u32 blocks_per_member_lo;/* blocks per member */ | |
121 | __u32 num_data_stripes_lo; /* number of data stripes */ | |
cdddbdbc DW |
122 | __u16 blocks_per_strip; |
123 | __u8 map_state; /* Normal, Uninitialized, Degraded, Failed */ | |
124 | #define IMSM_T_STATE_NORMAL 0 | |
125 | #define IMSM_T_STATE_UNINITIALIZED 1 | |
e3bba0e0 DW |
126 | #define IMSM_T_STATE_DEGRADED 2 |
127 | #define IMSM_T_STATE_FAILED 3 | |
cdddbdbc DW |
128 | __u8 raid_level; |
129 | #define IMSM_T_RAID0 0 | |
130 | #define IMSM_T_RAID1 1 | |
131 | #define IMSM_T_RAID5 5 /* since metadata version 1.2.02 ? */ | |
132 | __u8 num_members; /* number of member disks */ | |
fe7ed8cb DW |
133 | __u8 num_domains; /* number of parity domains */ |
134 | __u8 failed_disk_num; /* valid only when state is degraded */ | |
252d23c0 | 135 | __u8 ddf; |
5551b113 CA |
136 | __u32 pba_of_lba0_hi; |
137 | __u32 blocks_per_member_hi; | |
138 | __u32 num_data_stripes_hi; | |
139 | __u32 filler[4]; /* expansion area */ | |
7eef0453 | 140 | #define IMSM_ORD_REBUILD (1 << 24) |
cdddbdbc | 141 | __u32 disk_ord_tbl[1]; /* disk_ord_tbl[num_members], |
7eef0453 DW |
142 | * top byte contains some flags |
143 | */ | |
cdddbdbc DW |
144 | } __attribute__ ((packed)); |
145 | ||
146 | struct imsm_vol { | |
f8f603f1 | 147 | __u32 curr_migr_unit; |
fe7ed8cb | 148 | __u32 checkpoint_id; /* id to access curr_migr_unit */ |
cdddbdbc | 149 | __u8 migr_state; /* Normal or Migrating */ |
e3bba0e0 DW |
150 | #define MIGR_INIT 0 |
151 | #define MIGR_REBUILD 1 | |
152 | #define MIGR_VERIFY 2 /* analagous to echo check > sync_action */ | |
153 | #define MIGR_GEN_MIGR 3 | |
154 | #define MIGR_STATE_CHANGE 4 | |
1484e727 | 155 | #define MIGR_REPAIR 5 |
cdddbdbc DW |
156 | __u8 migr_type; /* Initializing, Rebuilding, ... */ |
157 | __u8 dirty; | |
fe7ed8cb DW |
158 | __u8 fs_state; /* fast-sync state for CnG (0xff == disabled) */ |
159 | __u16 verify_errors; /* number of mismatches */ | |
160 | __u16 bad_blocks; /* number of bad blocks during verify */ | |
161 | __u32 filler[4]; | |
cdddbdbc DW |
162 | struct imsm_map map[1]; |
163 | /* here comes another one if migr_state */ | |
164 | } __attribute__ ((packed)); | |
165 | ||
166 | struct imsm_dev { | |
fe7ed8cb | 167 | __u8 volume[MAX_RAID_SERIAL_LEN]; |
cdddbdbc DW |
168 | __u32 size_low; |
169 | __u32 size_high; | |
fe7ed8cb DW |
170 | #define DEV_BOOTABLE __cpu_to_le32(0x01) |
171 | #define DEV_BOOT_DEVICE __cpu_to_le32(0x02) | |
172 | #define DEV_READ_COALESCING __cpu_to_le32(0x04) | |
173 | #define DEV_WRITE_COALESCING __cpu_to_le32(0x08) | |
174 | #define DEV_LAST_SHUTDOWN_DIRTY __cpu_to_le32(0x10) | |
175 | #define DEV_HIDDEN_AT_BOOT __cpu_to_le32(0x20) | |
176 | #define DEV_CURRENTLY_HIDDEN __cpu_to_le32(0x40) | |
177 | #define DEV_VERIFY_AND_FIX __cpu_to_le32(0x80) | |
178 | #define DEV_MAP_STATE_UNINIT __cpu_to_le32(0x100) | |
179 | #define DEV_NO_AUTO_RECOVERY __cpu_to_le32(0x200) | |
180 | #define DEV_CLONE_N_GO __cpu_to_le32(0x400) | |
181 | #define DEV_CLONE_MAN_SYNC __cpu_to_le32(0x800) | |
182 | #define DEV_CNG_MASTER_DISK_NUM __cpu_to_le32(0x1000) | |
cdddbdbc DW |
183 | __u32 status; /* Persistent RaidDev status */ |
184 | __u32 reserved_blocks; /* Reserved blocks at beginning of volume */ | |
fe7ed8cb DW |
185 | __u8 migr_priority; |
186 | __u8 num_sub_vols; | |
187 | __u8 tid; | |
188 | __u8 cng_master_disk; | |
189 | __u16 cache_policy; | |
190 | __u8 cng_state; | |
191 | __u8 cng_sub_state; | |
192 | #define IMSM_DEV_FILLERS 10 | |
cdddbdbc DW |
193 | __u32 filler[IMSM_DEV_FILLERS]; |
194 | struct imsm_vol vol; | |
195 | } __attribute__ ((packed)); | |
196 | ||
197 | struct imsm_super { | |
198 | __u8 sig[MAX_SIGNATURE_LENGTH]; /* 0x00 - 0x1F */ | |
199 | __u32 check_sum; /* 0x20 - 0x23 MPB Checksum */ | |
200 | __u32 mpb_size; /* 0x24 - 0x27 Size of MPB */ | |
201 | __u32 family_num; /* 0x28 - 0x2B Checksum from first time this config was written */ | |
202 | __u32 generation_num; /* 0x2C - 0x2F Incremented each time this array's MPB is written */ | |
604b746f JD |
203 | __u32 error_log_size; /* 0x30 - 0x33 in bytes */ |
204 | __u32 attributes; /* 0x34 - 0x37 */ | |
cdddbdbc DW |
205 | __u8 num_disks; /* 0x38 Number of configured disks */ |
206 | __u8 num_raid_devs; /* 0x39 Number of configured volumes */ | |
604b746f JD |
207 | __u8 error_log_pos; /* 0x3A */ |
208 | __u8 fill[1]; /* 0x3B */ | |
209 | __u32 cache_size; /* 0x3c - 0x40 in mb */ | |
210 | __u32 orig_family_num; /* 0x40 - 0x43 original family num */ | |
211 | __u32 pwr_cycle_count; /* 0x44 - 0x47 simulated power cycle count for array */ | |
212 | __u32 bbm_log_size; /* 0x48 - 0x4B - size of bad Block Mgmt Log in bytes */ | |
213 | #define IMSM_FILLERS 35 | |
214 | __u32 filler[IMSM_FILLERS]; /* 0x4C - 0xD7 RAID_MPB_FILLERS */ | |
cdddbdbc DW |
215 | struct imsm_disk disk[1]; /* 0xD8 diskTbl[numDisks] */ |
216 | /* here comes imsm_dev[num_raid_devs] */ | |
604b746f | 217 | /* here comes BBM logs */ |
cdddbdbc DW |
218 | } __attribute__ ((packed)); |
219 | ||
604b746f JD |
220 | #define BBM_LOG_MAX_ENTRIES 254 |
221 | ||
222 | struct bbm_log_entry { | |
223 | __u64 defective_block_start; | |
224 | #define UNREADABLE 0xFFFFFFFF | |
225 | __u32 spare_block_offset; | |
226 | __u16 remapped_marked_count; | |
227 | __u16 disk_ordinal; | |
228 | } __attribute__ ((__packed__)); | |
229 | ||
230 | struct bbm_log { | |
231 | __u32 signature; /* 0xABADB10C */ | |
232 | __u32 entry_count; | |
233 | __u32 reserved_spare_block_count; /* 0 */ | |
234 | __u32 reserved; /* 0xFFFF */ | |
235 | __u64 first_spare_lba; | |
236 | struct bbm_log_entry mapped_block_entries[BBM_LOG_MAX_ENTRIES]; | |
237 | } __attribute__ ((__packed__)); | |
238 | ||
cdddbdbc DW |
239 | #ifndef MDASSEMBLE |
240 | static char *map_state_str[] = { "normal", "uninitialized", "degraded", "failed" }; | |
241 | #endif | |
242 | ||
8e59f3d8 AK |
243 | #define RAID_DISK_RESERVED_BLOCKS_IMSM_HI 2209 |
244 | ||
245 | #define GEN_MIGR_AREA_SIZE 2048 /* General Migration Copy Area size in blocks */ | |
246 | ||
de44e46f PB |
247 | #define MIGR_REC_BUF_SECTORS 1 /* size of migr_record i/o buffer in sectors */ |
248 | #define MIGR_REC_SECTOR_POSITION 1 /* migr_record position offset on disk, | |
249 | * MIGR_REC_BUF_SECTORS <= MIGR_REC_SECTOR_POS | |
17a4eaf9 AK |
250 | */ |
251 | ||
8e59f3d8 AK |
252 | #define UNIT_SRC_NORMAL 0 /* Source data for curr_migr_unit must |
253 | * be recovered using srcMap */ | |
254 | #define UNIT_SRC_IN_CP_AREA 1 /* Source data for curr_migr_unit has | |
255 | * already been migrated and must | |
256 | * be recovered from checkpoint area */ | |
257 | struct migr_record { | |
258 | __u32 rec_status; /* Status used to determine how to restart | |
259 | * migration in case it aborts | |
260 | * in some fashion */ | |
261 | __u32 curr_migr_unit; /* 0..numMigrUnits-1 */ | |
262 | __u32 family_num; /* Family number of MPB | |
263 | * containing the RaidDev | |
264 | * that is migrating */ | |
265 | __u32 ascending_migr; /* True if migrating in increasing | |
266 | * order of lbas */ | |
267 | __u32 blocks_per_unit; /* Num disk blocks per unit of operation */ | |
268 | __u32 dest_depth_per_unit; /* Num member blocks each destMap | |
269 | * member disk | |
270 | * advances per unit-of-operation */ | |
271 | __u32 ckpt_area_pba; /* Pba of first block of ckpt copy area */ | |
272 | __u32 dest_1st_member_lba; /* First member lba on first | |
273 | * stripe of destination */ | |
274 | __u32 num_migr_units; /* Total num migration units-of-op */ | |
275 | __u32 post_migr_vol_cap; /* Size of volume after | |
276 | * migration completes */ | |
277 | __u32 post_migr_vol_cap_hi; /* Expansion space for LBA64 */ | |
278 | __u32 ckpt_read_disk_num; /* Which member disk in destSubMap[0] the | |
279 | * migration ckpt record was read from | |
280 | * (for recovered migrations) */ | |
281 | } __attribute__ ((__packed__)); | |
282 | ||
ec50f7b6 LM |
283 | struct md_list { |
284 | /* usage marker: | |
285 | * 1: load metadata | |
286 | * 2: metadata does not match | |
287 | * 4: already checked | |
288 | */ | |
289 | int used; | |
290 | char *devname; | |
291 | int found; | |
292 | int container; | |
293 | dev_t st_rdev; | |
294 | struct md_list *next; | |
295 | }; | |
296 | ||
e7b84f9d | 297 | #define pr_vrb(fmt, arg...) (void) (verbose && pr_err(fmt, ##arg)) |
ec50f7b6 | 298 | |
1484e727 DW |
299 | static __u8 migr_type(struct imsm_dev *dev) |
300 | { | |
301 | if (dev->vol.migr_type == MIGR_VERIFY && | |
302 | dev->status & DEV_VERIFY_AND_FIX) | |
303 | return MIGR_REPAIR; | |
304 | else | |
305 | return dev->vol.migr_type; | |
306 | } | |
307 | ||
308 | static void set_migr_type(struct imsm_dev *dev, __u8 migr_type) | |
309 | { | |
310 | /* for compatibility with older oroms convert MIGR_REPAIR, into | |
311 | * MIGR_VERIFY w/ DEV_VERIFY_AND_FIX status | |
312 | */ | |
313 | if (migr_type == MIGR_REPAIR) { | |
314 | dev->vol.migr_type = MIGR_VERIFY; | |
315 | dev->status |= DEV_VERIFY_AND_FIX; | |
316 | } else { | |
317 | dev->vol.migr_type = migr_type; | |
318 | dev->status &= ~DEV_VERIFY_AND_FIX; | |
319 | } | |
320 | } | |
321 | ||
f36a9ecd | 322 | static unsigned int sector_count(__u32 bytes, unsigned int sector_size) |
cdddbdbc | 323 | { |
f36a9ecd | 324 | return ROUND_UP(bytes, sector_size) / sector_size; |
87eb16df | 325 | } |
cdddbdbc | 326 | |
f36a9ecd PB |
327 | static unsigned int mpb_sectors(struct imsm_super *mpb, |
328 | unsigned int sector_size) | |
87eb16df | 329 | { |
f36a9ecd | 330 | return sector_count(__le32_to_cpu(mpb->mpb_size), sector_size); |
cdddbdbc DW |
331 | } |
332 | ||
ba2de7ba DW |
333 | struct intel_dev { |
334 | struct imsm_dev *dev; | |
335 | struct intel_dev *next; | |
f21e18ca | 336 | unsigned index; |
ba2de7ba DW |
337 | }; |
338 | ||
88654014 LM |
339 | struct intel_hba { |
340 | enum sys_dev_type type; | |
341 | char *path; | |
342 | char *pci_id; | |
343 | struct intel_hba *next; | |
344 | }; | |
345 | ||
1a64be56 LM |
346 | enum action { |
347 | DISK_REMOVE = 1, | |
348 | DISK_ADD | |
349 | }; | |
cdddbdbc DW |
350 | /* internal representation of IMSM metadata */ |
351 | struct intel_super { | |
352 | union { | |
949c47a0 DW |
353 | void *buf; /* O_DIRECT buffer for reading/writing metadata */ |
354 | struct imsm_super *anchor; /* immovable parameters */ | |
cdddbdbc | 355 | }; |
8e59f3d8 AK |
356 | union { |
357 | void *migr_rec_buf; /* buffer for I/O operations */ | |
358 | struct migr_record *migr_rec; /* migration record */ | |
359 | }; | |
51d83f5d AK |
360 | int clean_migration_record_by_mdmon; /* when reshape is switched to next |
361 | array, it indicates that mdmon is allowed to clean migration | |
362 | record */ | |
949c47a0 | 363 | size_t len; /* size of the 'buf' allocation */ |
4d7b1503 DW |
364 | void *next_buf; /* for realloc'ing buf from the manager */ |
365 | size_t next_len; | |
c2c087e6 | 366 | int updates_pending; /* count of pending updates for mdmon */ |
bf5a934a | 367 | int current_vol; /* index of raid device undergoing creation */ |
5551b113 | 368 | unsigned long long create_offset; /* common start for 'current_vol' */ |
148acb7b | 369 | __u32 random; /* random data for seeding new family numbers */ |
ba2de7ba | 370 | struct intel_dev *devlist; |
fa7bb6f8 | 371 | unsigned int sector_size; /* sector size of used member drives */ |
cdddbdbc DW |
372 | struct dl { |
373 | struct dl *next; | |
374 | int index; | |
375 | __u8 serial[MAX_RAID_SERIAL_LEN]; | |
376 | int major, minor; | |
377 | char *devname; | |
b9f594fe | 378 | struct imsm_disk disk; |
cdddbdbc | 379 | int fd; |
0dcecb2e DW |
380 | int extent_cnt; |
381 | struct extent *e; /* for determining freespace @ create */ | |
efb30e7f | 382 | int raiddisk; /* slot to fill in autolayout */ |
1a64be56 | 383 | enum action action; |
ca0748fa | 384 | } *disks, *current_disk; |
1a64be56 LM |
385 | struct dl *disk_mgmt_list; /* list of disks to add/remove while mdmon |
386 | active */ | |
47ee5a45 | 387 | struct dl *missing; /* disks removed while we weren't looking */ |
43dad3d6 | 388 | struct bbm_log *bbm_log; |
88654014 | 389 | struct intel_hba *hba; /* device path of the raid controller for this metadata */ |
88c32bb1 | 390 | const struct imsm_orom *orom; /* platform firmware support */ |
a2b97981 DW |
391 | struct intel_super *next; /* (temp) list for disambiguating family_num */ |
392 | }; | |
393 | ||
394 | struct intel_disk { | |
395 | struct imsm_disk disk; | |
396 | #define IMSM_UNKNOWN_OWNER (-1) | |
397 | int owner; | |
398 | struct intel_disk *next; | |
cdddbdbc DW |
399 | }; |
400 | ||
c2c087e6 DW |
401 | struct extent { |
402 | unsigned long long start, size; | |
403 | }; | |
404 | ||
694575e7 KW |
405 | /* definitions of reshape process types */ |
406 | enum imsm_reshape_type { | |
407 | CH_TAKEOVER, | |
b5347799 | 408 | CH_MIGRATION, |
7abc9871 | 409 | CH_ARRAY_SIZE, |
694575e7 KW |
410 | }; |
411 | ||
88758e9d DW |
412 | /* definition of messages passed to imsm_process_update */ |
413 | enum imsm_update_type { | |
414 | update_activate_spare, | |
8273f55e | 415 | update_create_array, |
33414a01 | 416 | update_kill_array, |
aa534678 | 417 | update_rename_array, |
1a64be56 | 418 | update_add_remove_disk, |
78b10e66 | 419 | update_reshape_container_disks, |
48c5303a | 420 | update_reshape_migration, |
2d40f3a1 AK |
421 | update_takeover, |
422 | update_general_migration_checkpoint, | |
f3871fdc | 423 | update_size_change, |
88758e9d DW |
424 | }; |
425 | ||
426 | struct imsm_update_activate_spare { | |
427 | enum imsm_update_type type; | |
d23fe947 | 428 | struct dl *dl; |
88758e9d DW |
429 | int slot; |
430 | int array; | |
431 | struct imsm_update_activate_spare *next; | |
432 | }; | |
433 | ||
78b10e66 | 434 | struct geo_params { |
4dd2df09 | 435 | char devnm[32]; |
78b10e66 | 436 | char *dev_name; |
d04f65f4 | 437 | unsigned long long size; |
78b10e66 N |
438 | int level; |
439 | int layout; | |
440 | int chunksize; | |
441 | int raid_disks; | |
442 | }; | |
443 | ||
bb025c2f KW |
444 | enum takeover_direction { |
445 | R10_TO_R0, | |
446 | R0_TO_R10 | |
447 | }; | |
448 | struct imsm_update_takeover { | |
449 | enum imsm_update_type type; | |
450 | int subarray; | |
451 | enum takeover_direction direction; | |
452 | }; | |
78b10e66 N |
453 | |
454 | struct imsm_update_reshape { | |
455 | enum imsm_update_type type; | |
456 | int old_raid_disks; | |
457 | int new_raid_disks; | |
48c5303a PC |
458 | |
459 | int new_disks[1]; /* new_raid_disks - old_raid_disks makedev number */ | |
460 | }; | |
461 | ||
462 | struct imsm_update_reshape_migration { | |
463 | enum imsm_update_type type; | |
464 | int old_raid_disks; | |
465 | int new_raid_disks; | |
466 | /* fields for array migration changes | |
467 | */ | |
468 | int subdev; | |
469 | int new_level; | |
470 | int new_layout; | |
4bba0439 | 471 | int new_chunksize; |
48c5303a | 472 | |
d195167d | 473 | int new_disks[1]; /* new_raid_disks - old_raid_disks makedev number */ |
78b10e66 N |
474 | }; |
475 | ||
f3871fdc AK |
476 | struct imsm_update_size_change { |
477 | enum imsm_update_type type; | |
478 | int subdev; | |
479 | long long new_size; | |
480 | }; | |
481 | ||
2d40f3a1 AK |
482 | struct imsm_update_general_migration_checkpoint { |
483 | enum imsm_update_type type; | |
484 | __u32 curr_migr_unit; | |
485 | }; | |
486 | ||
54c2c1ea DW |
487 | struct disk_info { |
488 | __u8 serial[MAX_RAID_SERIAL_LEN]; | |
489 | }; | |
490 | ||
8273f55e DW |
491 | struct imsm_update_create_array { |
492 | enum imsm_update_type type; | |
8273f55e | 493 | int dev_idx; |
6a3e913e | 494 | struct imsm_dev dev; |
8273f55e DW |
495 | }; |
496 | ||
33414a01 DW |
497 | struct imsm_update_kill_array { |
498 | enum imsm_update_type type; | |
499 | int dev_idx; | |
500 | }; | |
501 | ||
aa534678 DW |
502 | struct imsm_update_rename_array { |
503 | enum imsm_update_type type; | |
504 | __u8 name[MAX_RAID_SERIAL_LEN]; | |
505 | int dev_idx; | |
506 | }; | |
507 | ||
1a64be56 | 508 | struct imsm_update_add_remove_disk { |
43dad3d6 DW |
509 | enum imsm_update_type type; |
510 | }; | |
511 | ||
88654014 LM |
512 | static const char *_sys_dev_type[] = { |
513 | [SYS_DEV_UNKNOWN] = "Unknown", | |
514 | [SYS_DEV_SAS] = "SAS", | |
614902f6 | 515 | [SYS_DEV_SATA] = "SATA", |
60f0f54d PB |
516 | [SYS_DEV_NVME] = "NVMe", |
517 | [SYS_DEV_VMD] = "VMD" | |
88654014 LM |
518 | }; |
519 | ||
520 | const char *get_sys_dev_type(enum sys_dev_type type) | |
521 | { | |
522 | if (type >= SYS_DEV_MAX) | |
523 | type = SYS_DEV_UNKNOWN; | |
524 | ||
525 | return _sys_dev_type[type]; | |
526 | } | |
527 | ||
528 | static struct intel_hba * alloc_intel_hba(struct sys_dev *device) | |
529 | { | |
503975b9 N |
530 | struct intel_hba *result = xmalloc(sizeof(*result)); |
531 | ||
532 | result->type = device->type; | |
533 | result->path = xstrdup(device->path); | |
534 | result->next = NULL; | |
535 | if (result->path && (result->pci_id = strrchr(result->path, '/')) != NULL) | |
536 | result->pci_id++; | |
537 | ||
88654014 LM |
538 | return result; |
539 | } | |
540 | ||
541 | static struct intel_hba * find_intel_hba(struct intel_hba *hba, struct sys_dev *device) | |
542 | { | |
594dc1b8 JS |
543 | struct intel_hba *result; |
544 | ||
88654014 LM |
545 | for (result = hba; result; result = result->next) { |
546 | if (result->type == device->type && strcmp(result->path, device->path) == 0) | |
547 | break; | |
548 | } | |
549 | return result; | |
550 | } | |
551 | ||
b4cf4cba | 552 | static int attach_hba_to_super(struct intel_super *super, struct sys_dev *device) |
88654014 LM |
553 | { |
554 | struct intel_hba *hba; | |
555 | ||
556 | /* check if disk attached to Intel HBA */ | |
557 | hba = find_intel_hba(super->hba, device); | |
558 | if (hba != NULL) | |
559 | return 1; | |
560 | /* Check if HBA is already attached to super */ | |
561 | if (super->hba == NULL) { | |
562 | super->hba = alloc_intel_hba(device); | |
563 | return 1; | |
6b781d33 AP |
564 | } |
565 | ||
566 | hba = super->hba; | |
567 | /* Intel metadata allows for all disks attached to the same type HBA. | |
614902f6 | 568 | * Do not support HBA types mixing |
6b781d33 AP |
569 | */ |
570 | if (device->type != hba->type) | |
88654014 | 571 | return 2; |
6b781d33 AP |
572 | |
573 | /* Multiple same type HBAs can be used if they share the same OROM */ | |
574 | const struct imsm_orom *device_orom = get_orom_by_device_id(device->dev_id); | |
575 | ||
576 | if (device_orom != super->orom) | |
577 | return 2; | |
578 | ||
579 | while (hba->next) | |
580 | hba = hba->next; | |
581 | ||
582 | hba->next = alloc_intel_hba(device); | |
583 | return 1; | |
88654014 LM |
584 | } |
585 | ||
586 | static struct sys_dev* find_disk_attached_hba(int fd, const char *devname) | |
587 | { | |
9bc4ae77 | 588 | struct sys_dev *list, *elem; |
88654014 LM |
589 | char *disk_path; |
590 | ||
591 | if ((list = find_intel_devices()) == NULL) | |
592 | return 0; | |
593 | ||
594 | if (fd < 0) | |
595 | disk_path = (char *) devname; | |
596 | else | |
597 | disk_path = diskfd_to_devpath(fd); | |
598 | ||
9bc4ae77 | 599 | if (!disk_path) |
88654014 | 600 | return 0; |
88654014 | 601 | |
9bc4ae77 N |
602 | for (elem = list; elem; elem = elem->next) |
603 | if (path_attached_to_hba(disk_path, elem->path)) | |
88654014 | 604 | return elem; |
9bc4ae77 | 605 | |
88654014 LM |
606 | if (disk_path != devname) |
607 | free(disk_path); | |
88654014 LM |
608 | |
609 | return NULL; | |
610 | } | |
611 | ||
d424212e N |
612 | static int find_intel_hba_capability(int fd, struct intel_super *super, |
613 | char *devname); | |
f2f5c343 | 614 | |
cdddbdbc DW |
615 | static struct supertype *match_metadata_desc_imsm(char *arg) |
616 | { | |
617 | struct supertype *st; | |
618 | ||
619 | if (strcmp(arg, "imsm") != 0 && | |
620 | strcmp(arg, "default") != 0 | |
621 | ) | |
622 | return NULL; | |
623 | ||
503975b9 | 624 | st = xcalloc(1, sizeof(*st)); |
cdddbdbc DW |
625 | st->ss = &super_imsm; |
626 | st->max_devs = IMSM_MAX_DEVICES; | |
627 | st->minor_version = 0; | |
628 | st->sb = NULL; | |
629 | return st; | |
630 | } | |
631 | ||
0e600426 | 632 | #ifndef MDASSEMBLE |
cdddbdbc DW |
633 | static __u8 *get_imsm_version(struct imsm_super *mpb) |
634 | { | |
635 | return &mpb->sig[MPB_SIG_LEN]; | |
636 | } | |
9e2d750d | 637 | #endif |
cdddbdbc | 638 | |
949c47a0 DW |
639 | /* retrieve a disk directly from the anchor when the anchor is known to be |
640 | * up-to-date, currently only at load time | |
641 | */ | |
642 | static struct imsm_disk *__get_imsm_disk(struct imsm_super *mpb, __u8 index) | |
cdddbdbc | 643 | { |
949c47a0 | 644 | if (index >= mpb->num_disks) |
cdddbdbc DW |
645 | return NULL; |
646 | return &mpb->disk[index]; | |
647 | } | |
648 | ||
95d07a2c LM |
649 | /* retrieve the disk description based on a index of the disk |
650 | * in the sub-array | |
651 | */ | |
652 | static struct dl *get_imsm_dl_disk(struct intel_super *super, __u8 index) | |
949c47a0 | 653 | { |
b9f594fe DW |
654 | struct dl *d; |
655 | ||
656 | for (d = super->disks; d; d = d->next) | |
657 | if (d->index == index) | |
95d07a2c LM |
658 | return d; |
659 | ||
660 | return NULL; | |
661 | } | |
662 | /* retrieve a disk from the parsed metadata */ | |
663 | static struct imsm_disk *get_imsm_disk(struct intel_super *super, __u8 index) | |
664 | { | |
665 | struct dl *dl; | |
666 | ||
667 | dl = get_imsm_dl_disk(super, index); | |
668 | if (dl) | |
669 | return &dl->disk; | |
670 | ||
b9f594fe | 671 | return NULL; |
949c47a0 DW |
672 | } |
673 | ||
674 | /* generate a checksum directly from the anchor when the anchor is known to be | |
675 | * up-to-date, currently only at load or write_super after coalescing | |
676 | */ | |
677 | static __u32 __gen_imsm_checksum(struct imsm_super *mpb) | |
cdddbdbc DW |
678 | { |
679 | __u32 end = mpb->mpb_size / sizeof(end); | |
680 | __u32 *p = (__u32 *) mpb; | |
681 | __u32 sum = 0; | |
682 | ||
5d500228 N |
683 | while (end--) { |
684 | sum += __le32_to_cpu(*p); | |
97f734fd N |
685 | p++; |
686 | } | |
cdddbdbc | 687 | |
5d500228 | 688 | return sum - __le32_to_cpu(mpb->check_sum); |
cdddbdbc DW |
689 | } |
690 | ||
a965f303 DW |
691 | static size_t sizeof_imsm_map(struct imsm_map *map) |
692 | { | |
693 | return sizeof(struct imsm_map) + sizeof(__u32) * (map->num_members - 1); | |
694 | } | |
695 | ||
696 | struct imsm_map *get_imsm_map(struct imsm_dev *dev, int second_map) | |
cdddbdbc | 697 | { |
5e7b0330 AK |
698 | /* A device can have 2 maps if it is in the middle of a migration. |
699 | * If second_map is: | |
238c0a71 AK |
700 | * MAP_0 - we return the first map |
701 | * MAP_1 - we return the second map if it exists, else NULL | |
702 | * MAP_X - we return the second map if it exists, else the first | |
5e7b0330 | 703 | */ |
a965f303 | 704 | struct imsm_map *map = &dev->vol.map[0]; |
9535fc47 | 705 | struct imsm_map *map2 = NULL; |
a965f303 | 706 | |
9535fc47 AK |
707 | if (dev->vol.migr_state) |
708 | map2 = (void *)map + sizeof_imsm_map(map); | |
a965f303 | 709 | |
9535fc47 | 710 | switch (second_map) { |
3b451610 | 711 | case MAP_0: |
9535fc47 | 712 | break; |
3b451610 | 713 | case MAP_1: |
9535fc47 AK |
714 | map = map2; |
715 | break; | |
238c0a71 | 716 | case MAP_X: |
9535fc47 AK |
717 | if (map2) |
718 | map = map2; | |
719 | break; | |
9535fc47 AK |
720 | default: |
721 | map = NULL; | |
722 | } | |
723 | return map; | |
5e7b0330 | 724 | |
a965f303 | 725 | } |
cdddbdbc | 726 | |
3393c6af DW |
727 | /* return the size of the device. |
728 | * migr_state increases the returned size if map[0] were to be duplicated | |
729 | */ | |
730 | static size_t sizeof_imsm_dev(struct imsm_dev *dev, int migr_state) | |
a965f303 DW |
731 | { |
732 | size_t size = sizeof(*dev) - sizeof(struct imsm_map) + | |
238c0a71 | 733 | sizeof_imsm_map(get_imsm_map(dev, MAP_0)); |
cdddbdbc DW |
734 | |
735 | /* migrating means an additional map */ | |
a965f303 | 736 | if (dev->vol.migr_state) |
238c0a71 | 737 | size += sizeof_imsm_map(get_imsm_map(dev, MAP_1)); |
3393c6af | 738 | else if (migr_state) |
238c0a71 | 739 | size += sizeof_imsm_map(get_imsm_map(dev, MAP_0)); |
cdddbdbc DW |
740 | |
741 | return size; | |
742 | } | |
743 | ||
54c2c1ea DW |
744 | #ifndef MDASSEMBLE |
745 | /* retrieve disk serial number list from a metadata update */ | |
746 | static struct disk_info *get_disk_info(struct imsm_update_create_array *update) | |
747 | { | |
748 | void *u = update; | |
749 | struct disk_info *inf; | |
750 | ||
751 | inf = u + sizeof(*update) - sizeof(struct imsm_dev) + | |
752 | sizeof_imsm_dev(&update->dev, 0); | |
753 | ||
754 | return inf; | |
755 | } | |
756 | #endif | |
757 | ||
949c47a0 | 758 | static struct imsm_dev *__get_imsm_dev(struct imsm_super *mpb, __u8 index) |
cdddbdbc DW |
759 | { |
760 | int offset; | |
761 | int i; | |
762 | void *_mpb = mpb; | |
763 | ||
949c47a0 | 764 | if (index >= mpb->num_raid_devs) |
cdddbdbc DW |
765 | return NULL; |
766 | ||
767 | /* devices start after all disks */ | |
768 | offset = ((void *) &mpb->disk[mpb->num_disks]) - _mpb; | |
769 | ||
770 | for (i = 0; i <= index; i++) | |
771 | if (i == index) | |
772 | return _mpb + offset; | |
773 | else | |
3393c6af | 774 | offset += sizeof_imsm_dev(_mpb + offset, 0); |
cdddbdbc DW |
775 | |
776 | return NULL; | |
777 | } | |
778 | ||
949c47a0 DW |
779 | static struct imsm_dev *get_imsm_dev(struct intel_super *super, __u8 index) |
780 | { | |
ba2de7ba DW |
781 | struct intel_dev *dv; |
782 | ||
949c47a0 DW |
783 | if (index >= super->anchor->num_raid_devs) |
784 | return NULL; | |
ba2de7ba DW |
785 | for (dv = super->devlist; dv; dv = dv->next) |
786 | if (dv->index == index) | |
787 | return dv->dev; | |
788 | return NULL; | |
949c47a0 DW |
789 | } |
790 | ||
98130f40 AK |
791 | /* |
792 | * for second_map: | |
238c0a71 AK |
793 | * == MAP_0 get first map |
794 | * == MAP_1 get second map | |
795 | * == MAP_X than get map according to the current migr_state | |
98130f40 AK |
796 | */ |
797 | static __u32 get_imsm_ord_tbl_ent(struct imsm_dev *dev, | |
798 | int slot, | |
799 | int second_map) | |
7eef0453 DW |
800 | { |
801 | struct imsm_map *map; | |
802 | ||
5e7b0330 | 803 | map = get_imsm_map(dev, second_map); |
7eef0453 | 804 | |
ff077194 DW |
805 | /* top byte identifies disk under rebuild */ |
806 | return __le32_to_cpu(map->disk_ord_tbl[slot]); | |
807 | } | |
808 | ||
809 | #define ord_to_idx(ord) (((ord) << 8) >> 8) | |
98130f40 | 810 | static __u32 get_imsm_disk_idx(struct imsm_dev *dev, int slot, int second_map) |
ff077194 | 811 | { |
98130f40 | 812 | __u32 ord = get_imsm_ord_tbl_ent(dev, slot, second_map); |
ff077194 DW |
813 | |
814 | return ord_to_idx(ord); | |
7eef0453 DW |
815 | } |
816 | ||
be73972f DW |
817 | static void set_imsm_ord_tbl_ent(struct imsm_map *map, int slot, __u32 ord) |
818 | { | |
819 | map->disk_ord_tbl[slot] = __cpu_to_le32(ord); | |
820 | } | |
821 | ||
f21e18ca | 822 | static int get_imsm_disk_slot(struct imsm_map *map, unsigned idx) |
620b1713 DW |
823 | { |
824 | int slot; | |
825 | __u32 ord; | |
826 | ||
827 | for (slot = 0; slot < map->num_members; slot++) { | |
828 | ord = __le32_to_cpu(map->disk_ord_tbl[slot]); | |
829 | if (ord_to_idx(ord) == idx) | |
830 | return slot; | |
831 | } | |
832 | ||
833 | return -1; | |
834 | } | |
835 | ||
cdddbdbc DW |
836 | static int get_imsm_raid_level(struct imsm_map *map) |
837 | { | |
838 | if (map->raid_level == 1) { | |
839 | if (map->num_members == 2) | |
840 | return 1; | |
841 | else | |
842 | return 10; | |
843 | } | |
844 | ||
845 | return map->raid_level; | |
846 | } | |
847 | ||
c2c087e6 DW |
848 | static int cmp_extent(const void *av, const void *bv) |
849 | { | |
850 | const struct extent *a = av; | |
851 | const struct extent *b = bv; | |
852 | if (a->start < b->start) | |
853 | return -1; | |
854 | if (a->start > b->start) | |
855 | return 1; | |
856 | return 0; | |
857 | } | |
858 | ||
0dcecb2e | 859 | static int count_memberships(struct dl *dl, struct intel_super *super) |
c2c087e6 | 860 | { |
c2c087e6 | 861 | int memberships = 0; |
620b1713 | 862 | int i; |
c2c087e6 | 863 | |
949c47a0 DW |
864 | for (i = 0; i < super->anchor->num_raid_devs; i++) { |
865 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
238c0a71 | 866 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
c2c087e6 | 867 | |
620b1713 DW |
868 | if (get_imsm_disk_slot(map, dl->index) >= 0) |
869 | memberships++; | |
c2c087e6 | 870 | } |
0dcecb2e DW |
871 | |
872 | return memberships; | |
873 | } | |
874 | ||
b81221b7 CA |
875 | static __u32 imsm_min_reserved_sectors(struct intel_super *super); |
876 | ||
5551b113 CA |
877 | static int split_ull(unsigned long long n, __u32 *lo, __u32 *hi) |
878 | { | |
879 | if (lo == 0 || hi == 0) | |
880 | return 1; | |
881 | *lo = __le32_to_cpu((unsigned)n); | |
882 | *hi = __le32_to_cpu((unsigned)(n >> 32)); | |
883 | return 0; | |
884 | } | |
885 | ||
886 | static unsigned long long join_u32(__u32 lo, __u32 hi) | |
887 | { | |
888 | return (unsigned long long)__le32_to_cpu(lo) | | |
889 | (((unsigned long long)__le32_to_cpu(hi)) << 32); | |
890 | } | |
891 | ||
892 | static unsigned long long total_blocks(struct imsm_disk *disk) | |
893 | { | |
894 | if (disk == NULL) | |
895 | return 0; | |
896 | return join_u32(disk->total_blocks_lo, disk->total_blocks_hi); | |
897 | } | |
898 | ||
899 | static unsigned long long pba_of_lba0(struct imsm_map *map) | |
900 | { | |
901 | if (map == NULL) | |
902 | return 0; | |
903 | return join_u32(map->pba_of_lba0_lo, map->pba_of_lba0_hi); | |
904 | } | |
905 | ||
906 | static unsigned long long blocks_per_member(struct imsm_map *map) | |
907 | { | |
908 | if (map == NULL) | |
909 | return 0; | |
910 | return join_u32(map->blocks_per_member_lo, map->blocks_per_member_hi); | |
911 | } | |
912 | ||
ae2416e7 | 913 | #ifndef MDASSEMBLE |
5551b113 CA |
914 | static unsigned long long num_data_stripes(struct imsm_map *map) |
915 | { | |
916 | if (map == NULL) | |
917 | return 0; | |
918 | return join_u32(map->num_data_stripes_lo, map->num_data_stripes_hi); | |
919 | } | |
f36a9ecd | 920 | #endif |
5551b113 CA |
921 | |
922 | static void set_total_blocks(struct imsm_disk *disk, unsigned long long n) | |
923 | { | |
924 | split_ull(n, &disk->total_blocks_lo, &disk->total_blocks_hi); | |
925 | } | |
926 | ||
927 | static void set_pba_of_lba0(struct imsm_map *map, unsigned long long n) | |
928 | { | |
929 | split_ull(n, &map->pba_of_lba0_lo, &map->pba_of_lba0_hi); | |
930 | } | |
931 | ||
932 | static void set_blocks_per_member(struct imsm_map *map, unsigned long long n) | |
933 | { | |
934 | split_ull(n, &map->blocks_per_member_lo, &map->blocks_per_member_hi); | |
935 | } | |
936 | ||
937 | static void set_num_data_stripes(struct imsm_map *map, unsigned long long n) | |
938 | { | |
939 | split_ull(n, &map->num_data_stripes_lo, &map->num_data_stripes_hi); | |
940 | } | |
941 | ||
0dcecb2e DW |
942 | static struct extent *get_extents(struct intel_super *super, struct dl *dl) |
943 | { | |
944 | /* find a list of used extents on the given physical device */ | |
945 | struct extent *rv, *e; | |
620b1713 | 946 | int i; |
0dcecb2e | 947 | int memberships = count_memberships(dl, super); |
b276dd33 DW |
948 | __u32 reservation; |
949 | ||
950 | /* trim the reserved area for spares, so they can join any array | |
951 | * regardless of whether the OROM has assigned sectors from the | |
952 | * IMSM_RESERVED_SECTORS region | |
953 | */ | |
954 | if (dl->index == -1) | |
b81221b7 | 955 | reservation = imsm_min_reserved_sectors(super); |
b276dd33 DW |
956 | else |
957 | reservation = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
0dcecb2e | 958 | |
503975b9 | 959 | rv = xcalloc(sizeof(struct extent), (memberships + 1)); |
c2c087e6 DW |
960 | e = rv; |
961 | ||
949c47a0 DW |
962 | for (i = 0; i < super->anchor->num_raid_devs; i++) { |
963 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
238c0a71 | 964 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
c2c087e6 | 965 | |
620b1713 | 966 | if (get_imsm_disk_slot(map, dl->index) >= 0) { |
5551b113 CA |
967 | e->start = pba_of_lba0(map); |
968 | e->size = blocks_per_member(map); | |
620b1713 | 969 | e++; |
c2c087e6 DW |
970 | } |
971 | } | |
972 | qsort(rv, memberships, sizeof(*rv), cmp_extent); | |
973 | ||
1011e834 | 974 | /* determine the start of the metadata |
14e8215b DW |
975 | * when no raid devices are defined use the default |
976 | * ...otherwise allow the metadata to truncate the value | |
977 | * as is the case with older versions of imsm | |
978 | */ | |
979 | if (memberships) { | |
980 | struct extent *last = &rv[memberships - 1]; | |
5551b113 | 981 | unsigned long long remainder; |
14e8215b | 982 | |
5551b113 | 983 | remainder = total_blocks(&dl->disk) - (last->start + last->size); |
dda5855f DW |
984 | /* round down to 1k block to satisfy precision of the kernel |
985 | * 'size' interface | |
986 | */ | |
987 | remainder &= ~1UL; | |
988 | /* make sure remainder is still sane */ | |
f21e18ca | 989 | if (remainder < (unsigned)ROUND_UP(super->len, 512) >> 9) |
dda5855f | 990 | remainder = ROUND_UP(super->len, 512) >> 9; |
14e8215b DW |
991 | if (reservation > remainder) |
992 | reservation = remainder; | |
993 | } | |
5551b113 | 994 | e->start = total_blocks(&dl->disk) - reservation; |
c2c087e6 DW |
995 | e->size = 0; |
996 | return rv; | |
997 | } | |
998 | ||
14e8215b DW |
999 | /* try to determine how much space is reserved for metadata from |
1000 | * the last get_extents() entry, otherwise fallback to the | |
1001 | * default | |
1002 | */ | |
1003 | static __u32 imsm_reserved_sectors(struct intel_super *super, struct dl *dl) | |
1004 | { | |
1005 | struct extent *e; | |
1006 | int i; | |
1007 | __u32 rv; | |
1008 | ||
1009 | /* for spares just return a minimal reservation which will grow | |
1010 | * once the spare is picked up by an array | |
1011 | */ | |
1012 | if (dl->index == -1) | |
1013 | return MPB_SECTOR_CNT; | |
1014 | ||
1015 | e = get_extents(super, dl); | |
1016 | if (!e) | |
1017 | return MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
1018 | ||
1019 | /* scroll to last entry */ | |
1020 | for (i = 0; e[i].size; i++) | |
1021 | continue; | |
1022 | ||
5551b113 | 1023 | rv = total_blocks(&dl->disk) - e[i].start; |
14e8215b DW |
1024 | |
1025 | free(e); | |
1026 | ||
1027 | return rv; | |
1028 | } | |
1029 | ||
25ed7e59 DW |
1030 | static int is_spare(struct imsm_disk *disk) |
1031 | { | |
1032 | return (disk->status & SPARE_DISK) == SPARE_DISK; | |
1033 | } | |
1034 | ||
1035 | static int is_configured(struct imsm_disk *disk) | |
1036 | { | |
1037 | return (disk->status & CONFIGURED_DISK) == CONFIGURED_DISK; | |
1038 | } | |
1039 | ||
1040 | static int is_failed(struct imsm_disk *disk) | |
1041 | { | |
1042 | return (disk->status & FAILED_DISK) == FAILED_DISK; | |
1043 | } | |
1044 | ||
b81221b7 CA |
1045 | /* try to determine how much space is reserved for metadata from |
1046 | * the last get_extents() entry on the smallest active disk, | |
1047 | * otherwise fallback to the default | |
1048 | */ | |
1049 | static __u32 imsm_min_reserved_sectors(struct intel_super *super) | |
1050 | { | |
1051 | struct extent *e; | |
1052 | int i; | |
5551b113 CA |
1053 | unsigned long long min_active; |
1054 | __u32 remainder; | |
b81221b7 CA |
1055 | __u32 rv = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; |
1056 | struct dl *dl, *dl_min = NULL; | |
1057 | ||
1058 | if (!super) | |
1059 | return rv; | |
1060 | ||
1061 | min_active = 0; | |
1062 | for (dl = super->disks; dl; dl = dl->next) { | |
1063 | if (dl->index < 0) | |
1064 | continue; | |
5551b113 CA |
1065 | unsigned long long blocks = total_blocks(&dl->disk); |
1066 | if (blocks < min_active || min_active == 0) { | |
b81221b7 | 1067 | dl_min = dl; |
5551b113 | 1068 | min_active = blocks; |
b81221b7 CA |
1069 | } |
1070 | } | |
1071 | if (!dl_min) | |
1072 | return rv; | |
1073 | ||
1074 | /* find last lba used by subarrays on the smallest active disk */ | |
1075 | e = get_extents(super, dl_min); | |
1076 | if (!e) | |
1077 | return rv; | |
1078 | for (i = 0; e[i].size; i++) | |
1079 | continue; | |
1080 | ||
1081 | remainder = min_active - e[i].start; | |
1082 | free(e); | |
1083 | ||
1084 | /* to give priority to recovery we should not require full | |
1085 | IMSM_RESERVED_SECTORS from the spare */ | |
1086 | rv = MPB_SECTOR_CNT + NUM_BLOCKS_DIRTY_STRIPE_REGION; | |
1087 | ||
1088 | /* if real reservation is smaller use that value */ | |
1089 | return (remainder < rv) ? remainder : rv; | |
1090 | } | |
1091 | ||
80e7f8c3 AC |
1092 | /* Return minimum size of a spare that can be used in this array*/ |
1093 | static unsigned long long min_acceptable_spare_size_imsm(struct supertype *st) | |
1094 | { | |
1095 | struct intel_super *super = st->sb; | |
1096 | struct dl *dl; | |
1097 | struct extent *e; | |
1098 | int i; | |
1099 | unsigned long long rv = 0; | |
1100 | ||
1101 | if (!super) | |
1102 | return rv; | |
1103 | /* find first active disk in array */ | |
1104 | dl = super->disks; | |
1105 | while (dl && (is_failed(&dl->disk) || dl->index == -1)) | |
1106 | dl = dl->next; | |
1107 | if (!dl) | |
1108 | return rv; | |
1109 | /* find last lba used by subarrays */ | |
1110 | e = get_extents(super, dl); | |
1111 | if (!e) | |
1112 | return rv; | |
1113 | for (i = 0; e[i].size; i++) | |
1114 | continue; | |
1115 | if (i > 0) | |
1116 | rv = e[i-1].start + e[i-1].size; | |
1117 | free(e); | |
b81221b7 | 1118 | |
80e7f8c3 | 1119 | /* add the amount of space needed for metadata */ |
b81221b7 CA |
1120 | rv = rv + imsm_min_reserved_sectors(super); |
1121 | ||
80e7f8c3 AC |
1122 | return rv * 512; |
1123 | } | |
1124 | ||
d1e02575 AK |
1125 | static int is_gen_migration(struct imsm_dev *dev); |
1126 | ||
f36a9ecd PB |
1127 | #define IMSM_4K_DIV 8 |
1128 | ||
1799c9e8 | 1129 | #ifndef MDASSEMBLE |
c47b0ff6 AK |
1130 | static __u64 blocks_per_migr_unit(struct intel_super *super, |
1131 | struct imsm_dev *dev); | |
1e5c6983 | 1132 | |
c47b0ff6 AK |
1133 | static void print_imsm_dev(struct intel_super *super, |
1134 | struct imsm_dev *dev, | |
1135 | char *uuid, | |
1136 | int disk_idx) | |
cdddbdbc DW |
1137 | { |
1138 | __u64 sz; | |
0d80bb2f | 1139 | int slot, i; |
238c0a71 AK |
1140 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
1141 | struct imsm_map *map2 = get_imsm_map(dev, MAP_1); | |
b10b37b8 | 1142 | __u32 ord; |
cdddbdbc DW |
1143 | |
1144 | printf("\n"); | |
1e7bc0ed | 1145 | printf("[%.16s]:\n", dev->volume); |
44470971 | 1146 | printf(" UUID : %s\n", uuid); |
dd8bcb3b AK |
1147 | printf(" RAID Level : %d", get_imsm_raid_level(map)); |
1148 | if (map2) | |
1149 | printf(" <-- %d", get_imsm_raid_level(map2)); | |
1150 | printf("\n"); | |
1151 | printf(" Members : %d", map->num_members); | |
1152 | if (map2) | |
1153 | printf(" <-- %d", map2->num_members); | |
1154 | printf("\n"); | |
0d80bb2f DW |
1155 | printf(" Slots : ["); |
1156 | for (i = 0; i < map->num_members; i++) { | |
238c0a71 | 1157 | ord = get_imsm_ord_tbl_ent(dev, i, MAP_0); |
0d80bb2f DW |
1158 | printf("%s", ord & IMSM_ORD_REBUILD ? "_" : "U"); |
1159 | } | |
dd8bcb3b AK |
1160 | printf("]"); |
1161 | if (map2) { | |
1162 | printf(" <-- ["); | |
1163 | for (i = 0; i < map2->num_members; i++) { | |
238c0a71 | 1164 | ord = get_imsm_ord_tbl_ent(dev, i, MAP_1); |
dd8bcb3b AK |
1165 | printf("%s", ord & IMSM_ORD_REBUILD ? "_" : "U"); |
1166 | } | |
1167 | printf("]"); | |
1168 | } | |
1169 | printf("\n"); | |
7095bccb AK |
1170 | printf(" Failed disk : "); |
1171 | if (map->failed_disk_num == 0xff) | |
1172 | printf("none"); | |
1173 | else | |
1174 | printf("%i", map->failed_disk_num); | |
1175 | printf("\n"); | |
620b1713 DW |
1176 | slot = get_imsm_disk_slot(map, disk_idx); |
1177 | if (slot >= 0) { | |
238c0a71 | 1178 | ord = get_imsm_ord_tbl_ent(dev, slot, MAP_X); |
b10b37b8 DW |
1179 | printf(" This Slot : %d%s\n", slot, |
1180 | ord & IMSM_ORD_REBUILD ? " (out-of-sync)" : ""); | |
1181 | } else | |
cdddbdbc DW |
1182 | printf(" This Slot : ?\n"); |
1183 | sz = __le32_to_cpu(dev->size_high); | |
1184 | sz <<= 32; | |
1185 | sz += __le32_to_cpu(dev->size_low); | |
1186 | printf(" Array Size : %llu%s\n", (unsigned long long)sz, | |
1187 | human_size(sz * 512)); | |
5551b113 | 1188 | sz = blocks_per_member(map); |
cdddbdbc DW |
1189 | printf(" Per Dev Size : %llu%s\n", (unsigned long long)sz, |
1190 | human_size(sz * 512)); | |
5551b113 CA |
1191 | printf(" Sector Offset : %llu\n", |
1192 | pba_of_lba0(map)); | |
1193 | printf(" Num Stripes : %llu\n", | |
1194 | num_data_stripes(map)); | |
dd8bcb3b | 1195 | printf(" Chunk Size : %u KiB", |
cdddbdbc | 1196 | __le16_to_cpu(map->blocks_per_strip) / 2); |
dd8bcb3b AK |
1197 | if (map2) |
1198 | printf(" <-- %u KiB", | |
1199 | __le16_to_cpu(map2->blocks_per_strip) / 2); | |
1200 | printf("\n"); | |
cdddbdbc | 1201 | printf(" Reserved : %d\n", __le32_to_cpu(dev->reserved_blocks)); |
8655a7b1 | 1202 | printf(" Migrate State : "); |
1484e727 DW |
1203 | if (dev->vol.migr_state) { |
1204 | if (migr_type(dev) == MIGR_INIT) | |
8655a7b1 | 1205 | printf("initialize\n"); |
1484e727 | 1206 | else if (migr_type(dev) == MIGR_REBUILD) |
8655a7b1 | 1207 | printf("rebuild\n"); |
1484e727 | 1208 | else if (migr_type(dev) == MIGR_VERIFY) |
8655a7b1 | 1209 | printf("check\n"); |
1484e727 | 1210 | else if (migr_type(dev) == MIGR_GEN_MIGR) |
8655a7b1 | 1211 | printf("general migration\n"); |
1484e727 | 1212 | else if (migr_type(dev) == MIGR_STATE_CHANGE) |
8655a7b1 | 1213 | printf("state change\n"); |
1484e727 | 1214 | else if (migr_type(dev) == MIGR_REPAIR) |
8655a7b1 | 1215 | printf("repair\n"); |
1484e727 | 1216 | else |
8655a7b1 DW |
1217 | printf("<unknown:%d>\n", migr_type(dev)); |
1218 | } else | |
1219 | printf("idle\n"); | |
3393c6af DW |
1220 | printf(" Map State : %s", map_state_str[map->map_state]); |
1221 | if (dev->vol.migr_state) { | |
238c0a71 | 1222 | struct imsm_map *map = get_imsm_map(dev, MAP_1); |
1e5c6983 | 1223 | |
b10b37b8 | 1224 | printf(" <-- %s", map_state_str[map->map_state]); |
464d40e8 LD |
1225 | printf("\n Checkpoint : %u ", |
1226 | __le32_to_cpu(dev->vol.curr_migr_unit)); | |
089f9d79 | 1227 | if (is_gen_migration(dev) && (slot > 1 || slot < 0)) |
464d40e8 LD |
1228 | printf("(N/A)"); |
1229 | else | |
1230 | printf("(%llu)", (unsigned long long) | |
1231 | blocks_per_migr_unit(super, dev)); | |
3393c6af DW |
1232 | } |
1233 | printf("\n"); | |
cdddbdbc | 1234 | printf(" Dirty State : %s\n", dev->vol.dirty ? "dirty" : "clean"); |
cdddbdbc DW |
1235 | } |
1236 | ||
0ec1f4e8 | 1237 | static void print_imsm_disk(struct imsm_disk *disk, int index, __u32 reserved) |
cdddbdbc | 1238 | { |
1f24f035 | 1239 | char str[MAX_RAID_SERIAL_LEN + 1]; |
cdddbdbc DW |
1240 | __u64 sz; |
1241 | ||
0ec1f4e8 | 1242 | if (index < -1 || !disk) |
e9d82038 DW |
1243 | return; |
1244 | ||
cdddbdbc | 1245 | printf("\n"); |
1f24f035 | 1246 | snprintf(str, MAX_RAID_SERIAL_LEN + 1, "%s", disk->serial); |
0ec1f4e8 DW |
1247 | if (index >= 0) |
1248 | printf(" Disk%02d Serial : %s\n", index, str); | |
1249 | else | |
1250 | printf(" Disk Serial : %s\n", str); | |
25ed7e59 DW |
1251 | printf(" State :%s%s%s\n", is_spare(disk) ? " spare" : "", |
1252 | is_configured(disk) ? " active" : "", | |
1253 | is_failed(disk) ? " failed" : ""); | |
cdddbdbc | 1254 | printf(" Id : %08x\n", __le32_to_cpu(disk->scsi_id)); |
5551b113 | 1255 | sz = total_blocks(disk) - reserved; |
cdddbdbc DW |
1256 | printf(" Usable Size : %llu%s\n", (unsigned long long)sz, |
1257 | human_size(sz * 512)); | |
1258 | } | |
1259 | ||
de44e46f PB |
1260 | void convert_to_4k_imsm_migr_rec(struct intel_super *super) |
1261 | { | |
1262 | struct migr_record *migr_rec = super->migr_rec; | |
1263 | ||
1264 | migr_rec->blocks_per_unit /= IMSM_4K_DIV; | |
1265 | migr_rec->ckpt_area_pba /= IMSM_4K_DIV; | |
1266 | migr_rec->dest_1st_member_lba /= IMSM_4K_DIV; | |
1267 | migr_rec->dest_depth_per_unit /= IMSM_4K_DIV; | |
1268 | split_ull((join_u32(migr_rec->post_migr_vol_cap, | |
1269 | migr_rec->post_migr_vol_cap_hi) / IMSM_4K_DIV), | |
1270 | &migr_rec->post_migr_vol_cap, &migr_rec->post_migr_vol_cap_hi); | |
1271 | } | |
1272 | ||
f36a9ecd PB |
1273 | void convert_to_4k_imsm_disk(struct imsm_disk *disk) |
1274 | { | |
1275 | set_total_blocks(disk, (total_blocks(disk)/IMSM_4K_DIV)); | |
1276 | } | |
1277 | ||
1278 | void convert_to_4k(struct intel_super *super) | |
1279 | { | |
1280 | struct imsm_super *mpb = super->anchor; | |
1281 | struct imsm_disk *disk; | |
1282 | int i; | |
1283 | ||
1284 | for (i = 0; i < mpb->num_disks ; i++) { | |
1285 | disk = __get_imsm_disk(mpb, i); | |
1286 | /* disk */ | |
1287 | convert_to_4k_imsm_disk(disk); | |
1288 | } | |
1289 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
1290 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
1291 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
1292 | /* dev */ | |
1293 | split_ull((join_u32(dev->size_low, dev->size_high)/IMSM_4K_DIV), | |
1294 | &dev->size_low, &dev->size_high); | |
1295 | dev->vol.curr_migr_unit /= IMSM_4K_DIV; | |
1296 | ||
1297 | /* map0 */ | |
1298 | set_blocks_per_member(map, blocks_per_member(map)/IMSM_4K_DIV); | |
1299 | map->blocks_per_strip /= IMSM_4K_DIV; | |
1300 | set_pba_of_lba0(map, pba_of_lba0(map)/IMSM_4K_DIV); | |
1301 | ||
1302 | if (dev->vol.migr_state) { | |
1303 | /* map1 */ | |
1304 | map = get_imsm_map(dev, MAP_1); | |
1305 | set_blocks_per_member(map, | |
1306 | blocks_per_member(map)/IMSM_4K_DIV); | |
1307 | map->blocks_per_strip /= IMSM_4K_DIV; | |
1308 | set_pba_of_lba0(map, pba_of_lba0(map)/IMSM_4K_DIV); | |
1309 | } | |
1310 | } | |
1311 | ||
1312 | mpb->check_sum = __gen_imsm_checksum(mpb); | |
1313 | } | |
1314 | ||
520e69e2 AK |
1315 | void examine_migr_rec_imsm(struct intel_super *super) |
1316 | { | |
1317 | struct migr_record *migr_rec = super->migr_rec; | |
1318 | struct imsm_super *mpb = super->anchor; | |
1319 | int i; | |
1320 | ||
1321 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
1322 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
3136abe5 | 1323 | struct imsm_map *map; |
b4ab44d8 | 1324 | int slot = -1; |
3136abe5 | 1325 | |
520e69e2 AK |
1326 | if (is_gen_migration(dev) == 0) |
1327 | continue; | |
1328 | ||
1329 | printf("\nMigration Record Information:"); | |
3136abe5 | 1330 | |
44bfe6df AK |
1331 | /* first map under migration */ |
1332 | map = get_imsm_map(dev, MAP_0); | |
3136abe5 AK |
1333 | if (map) |
1334 | slot = get_imsm_disk_slot(map, super->disks->index); | |
089f9d79 | 1335 | if (map == NULL || slot > 1 || slot < 0) { |
520e69e2 AK |
1336 | printf(" Empty\n "); |
1337 | printf("Examine one of first two disks in array\n"); | |
1338 | break; | |
1339 | } | |
1340 | printf("\n Status : "); | |
1341 | if (__le32_to_cpu(migr_rec->rec_status) == UNIT_SRC_NORMAL) | |
1342 | printf("Normal\n"); | |
1343 | else | |
1344 | printf("Contains Data\n"); | |
1345 | printf(" Current Unit : %u\n", | |
1346 | __le32_to_cpu(migr_rec->curr_migr_unit)); | |
1347 | printf(" Family : %u\n", | |
1348 | __le32_to_cpu(migr_rec->family_num)); | |
1349 | printf(" Ascending : %u\n", | |
1350 | __le32_to_cpu(migr_rec->ascending_migr)); | |
1351 | printf(" Blocks Per Unit : %u\n", | |
1352 | __le32_to_cpu(migr_rec->blocks_per_unit)); | |
1353 | printf(" Dest. Depth Per Unit : %u\n", | |
1354 | __le32_to_cpu(migr_rec->dest_depth_per_unit)); | |
1355 | printf(" Checkpoint Area pba : %u\n", | |
1356 | __le32_to_cpu(migr_rec->ckpt_area_pba)); | |
1357 | printf(" First member lba : %u\n", | |
1358 | __le32_to_cpu(migr_rec->dest_1st_member_lba)); | |
1359 | printf(" Total Number of Units : %u\n", | |
1360 | __le32_to_cpu(migr_rec->num_migr_units)); | |
1361 | printf(" Size of volume : %u\n", | |
1362 | __le32_to_cpu(migr_rec->post_migr_vol_cap)); | |
1363 | printf(" Expansion space for LBA64 : %u\n", | |
1364 | __le32_to_cpu(migr_rec->post_migr_vol_cap_hi)); | |
1365 | printf(" Record was read from : %u\n", | |
1366 | __le32_to_cpu(migr_rec->ckpt_read_disk_num)); | |
1367 | ||
1368 | break; | |
1369 | } | |
1370 | } | |
9e2d750d | 1371 | #endif /* MDASSEMBLE */ |
f36a9ecd | 1372 | |
de44e46f PB |
1373 | void convert_from_4k_imsm_migr_rec(struct intel_super *super) |
1374 | { | |
1375 | struct migr_record *migr_rec = super->migr_rec; | |
1376 | ||
1377 | migr_rec->blocks_per_unit *= IMSM_4K_DIV; | |
1378 | migr_rec->ckpt_area_pba *= IMSM_4K_DIV; | |
1379 | migr_rec->dest_1st_member_lba *= IMSM_4K_DIV; | |
1380 | migr_rec->dest_depth_per_unit *= IMSM_4K_DIV; | |
1381 | split_ull((join_u32(migr_rec->post_migr_vol_cap, | |
1382 | migr_rec->post_migr_vol_cap_hi) * IMSM_4K_DIV), | |
1383 | &migr_rec->post_migr_vol_cap, | |
1384 | &migr_rec->post_migr_vol_cap_hi); | |
1385 | } | |
1386 | ||
f36a9ecd PB |
1387 | void convert_from_4k(struct intel_super *super) |
1388 | { | |
1389 | struct imsm_super *mpb = super->anchor; | |
1390 | struct imsm_disk *disk; | |
1391 | int i; | |
1392 | ||
1393 | for (i = 0; i < mpb->num_disks ; i++) { | |
1394 | disk = __get_imsm_disk(mpb, i); | |
1395 | /* disk */ | |
1396 | set_total_blocks(disk, (total_blocks(disk)*IMSM_4K_DIV)); | |
1397 | } | |
1398 | ||
1399 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
1400 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
1401 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
1402 | /* dev */ | |
1403 | split_ull((join_u32(dev->size_low, dev->size_high)*IMSM_4K_DIV), | |
1404 | &dev->size_low, &dev->size_high); | |
1405 | dev->vol.curr_migr_unit *= IMSM_4K_DIV; | |
1406 | ||
1407 | /* map0 */ | |
1408 | set_blocks_per_member(map, blocks_per_member(map)*IMSM_4K_DIV); | |
1409 | map->blocks_per_strip *= IMSM_4K_DIV; | |
1410 | set_pba_of_lba0(map, pba_of_lba0(map)*IMSM_4K_DIV); | |
1411 | ||
1412 | if (dev->vol.migr_state) { | |
1413 | /* map1 */ | |
1414 | map = get_imsm_map(dev, MAP_1); | |
1415 | set_blocks_per_member(map, | |
1416 | blocks_per_member(map)*IMSM_4K_DIV); | |
1417 | map->blocks_per_strip *= IMSM_4K_DIV; | |
1418 | set_pba_of_lba0(map, pba_of_lba0(map)*IMSM_4K_DIV); | |
1419 | } | |
1420 | } | |
1421 | ||
1422 | mpb->check_sum = __gen_imsm_checksum(mpb); | |
1423 | } | |
1424 | ||
19482bcc AK |
1425 | /******************************************************************************* |
1426 | * function: imsm_check_attributes | |
1427 | * Description: Function checks if features represented by attributes flags | |
1011e834 | 1428 | * are supported by mdadm. |
19482bcc AK |
1429 | * Parameters: |
1430 | * attributes - Attributes read from metadata | |
1431 | * Returns: | |
1011e834 N |
1432 | * 0 - passed attributes contains unsupported features flags |
1433 | * 1 - all features are supported | |
19482bcc AK |
1434 | ******************************************************************************/ |
1435 | static int imsm_check_attributes(__u32 attributes) | |
1436 | { | |
1437 | int ret_val = 1; | |
418f9b36 N |
1438 | __u32 not_supported = MPB_ATTRIB_SUPPORTED^0xffffffff; |
1439 | ||
1440 | not_supported &= ~MPB_ATTRIB_IGNORED; | |
19482bcc AK |
1441 | |
1442 | not_supported &= attributes; | |
1443 | if (not_supported) { | |
e7b84f9d | 1444 | pr_err("(IMSM): Unsupported attributes : %x\n", |
418f9b36 | 1445 | (unsigned)__le32_to_cpu(not_supported)); |
19482bcc AK |
1446 | if (not_supported & MPB_ATTRIB_CHECKSUM_VERIFY) { |
1447 | dprintf("\t\tMPB_ATTRIB_CHECKSUM_VERIFY \n"); | |
1448 | not_supported ^= MPB_ATTRIB_CHECKSUM_VERIFY; | |
1449 | } | |
1450 | if (not_supported & MPB_ATTRIB_2TB) { | |
1451 | dprintf("\t\tMPB_ATTRIB_2TB\n"); | |
1452 | not_supported ^= MPB_ATTRIB_2TB; | |
1453 | } | |
1454 | if (not_supported & MPB_ATTRIB_RAID0) { | |
1455 | dprintf("\t\tMPB_ATTRIB_RAID0\n"); | |
1456 | not_supported ^= MPB_ATTRIB_RAID0; | |
1457 | } | |
1458 | if (not_supported & MPB_ATTRIB_RAID1) { | |
1459 | dprintf("\t\tMPB_ATTRIB_RAID1\n"); | |
1460 | not_supported ^= MPB_ATTRIB_RAID1; | |
1461 | } | |
1462 | if (not_supported & MPB_ATTRIB_RAID10) { | |
1463 | dprintf("\t\tMPB_ATTRIB_RAID10\n"); | |
1464 | not_supported ^= MPB_ATTRIB_RAID10; | |
1465 | } | |
1466 | if (not_supported & MPB_ATTRIB_RAID1E) { | |
1467 | dprintf("\t\tMPB_ATTRIB_RAID1E\n"); | |
1468 | not_supported ^= MPB_ATTRIB_RAID1E; | |
1469 | } | |
1470 | if (not_supported & MPB_ATTRIB_RAID5) { | |
1471 | dprintf("\t\tMPB_ATTRIB_RAID5\n"); | |
1472 | not_supported ^= MPB_ATTRIB_RAID5; | |
1473 | } | |
1474 | if (not_supported & MPB_ATTRIB_RAIDCNG) { | |
1475 | dprintf("\t\tMPB_ATTRIB_RAIDCNG\n"); | |
1476 | not_supported ^= MPB_ATTRIB_RAIDCNG; | |
1477 | } | |
1478 | if (not_supported & MPB_ATTRIB_BBM) { | |
1479 | dprintf("\t\tMPB_ATTRIB_BBM\n"); | |
1480 | not_supported ^= MPB_ATTRIB_BBM; | |
1481 | } | |
1482 | if (not_supported & MPB_ATTRIB_CHECKSUM_VERIFY) { | |
1483 | dprintf("\t\tMPB_ATTRIB_CHECKSUM_VERIFY (== MPB_ATTRIB_LEGACY)\n"); | |
1484 | not_supported ^= MPB_ATTRIB_CHECKSUM_VERIFY; | |
1485 | } | |
1486 | if (not_supported & MPB_ATTRIB_EXP_STRIPE_SIZE) { | |
1487 | dprintf("\t\tMPB_ATTRIB_EXP_STRIP_SIZE\n"); | |
1488 | not_supported ^= MPB_ATTRIB_EXP_STRIPE_SIZE; | |
1489 | } | |
1490 | if (not_supported & MPB_ATTRIB_2TB_DISK) { | |
1491 | dprintf("\t\tMPB_ATTRIB_2TB_DISK\n"); | |
1492 | not_supported ^= MPB_ATTRIB_2TB_DISK; | |
1493 | } | |
1494 | if (not_supported & MPB_ATTRIB_NEVER_USE2) { | |
1495 | dprintf("\t\tMPB_ATTRIB_NEVER_USE2\n"); | |
1496 | not_supported ^= MPB_ATTRIB_NEVER_USE2; | |
1497 | } | |
1498 | if (not_supported & MPB_ATTRIB_NEVER_USE) { | |
1499 | dprintf("\t\tMPB_ATTRIB_NEVER_USE\n"); | |
1500 | not_supported ^= MPB_ATTRIB_NEVER_USE; | |
1501 | } | |
1502 | ||
1503 | if (not_supported) | |
1ade5cc1 | 1504 | dprintf("(IMSM): Unknown attributes : %x\n", not_supported); |
19482bcc AK |
1505 | |
1506 | ret_val = 0; | |
1507 | } | |
1508 | ||
1509 | return ret_val; | |
1510 | } | |
1511 | ||
9e2d750d | 1512 | #ifndef MDASSEMBLE |
a5d85af7 | 1513 | static void getinfo_super_imsm(struct supertype *st, struct mdinfo *info, char *map); |
44470971 | 1514 | |
cdddbdbc DW |
1515 | static void examine_super_imsm(struct supertype *st, char *homehost) |
1516 | { | |
1517 | struct intel_super *super = st->sb; | |
949c47a0 | 1518 | struct imsm_super *mpb = super->anchor; |
cdddbdbc DW |
1519 | char str[MAX_SIGNATURE_LENGTH]; |
1520 | int i; | |
27fd6274 DW |
1521 | struct mdinfo info; |
1522 | char nbuf[64]; | |
cdddbdbc | 1523 | __u32 sum; |
14e8215b | 1524 | __u32 reserved = imsm_reserved_sectors(super, super->disks); |
94827db3 | 1525 | struct dl *dl; |
27fd6274 | 1526 | |
cdddbdbc DW |
1527 | snprintf(str, MPB_SIG_LEN, "%s", mpb->sig); |
1528 | printf(" Magic : %s\n", str); | |
1529 | snprintf(str, strlen(MPB_VERSION_RAID0), "%s", get_imsm_version(mpb)); | |
1530 | printf(" Version : %s\n", get_imsm_version(mpb)); | |
148acb7b | 1531 | printf(" Orig Family : %08x\n", __le32_to_cpu(mpb->orig_family_num)); |
cdddbdbc DW |
1532 | printf(" Family : %08x\n", __le32_to_cpu(mpb->family_num)); |
1533 | printf(" Generation : %08x\n", __le32_to_cpu(mpb->generation_num)); | |
19482bcc AK |
1534 | printf(" Attributes : "); |
1535 | if (imsm_check_attributes(mpb->attributes)) | |
1536 | printf("All supported\n"); | |
1537 | else | |
1538 | printf("not supported\n"); | |
a5d85af7 | 1539 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1540 | fname_from_uuid(st, &info, nbuf, ':'); |
27fd6274 | 1541 | printf(" UUID : %s\n", nbuf + 5); |
cdddbdbc DW |
1542 | sum = __le32_to_cpu(mpb->check_sum); |
1543 | printf(" Checksum : %08x %s\n", sum, | |
949c47a0 | 1544 | __gen_imsm_checksum(mpb) == sum ? "correct" : "incorrect"); |
f36a9ecd | 1545 | printf(" MPB Sectors : %d\n", mpb_sectors(mpb, super->sector_size)); |
cdddbdbc DW |
1546 | printf(" Disks : %d\n", mpb->num_disks); |
1547 | printf(" RAID Devices : %d\n", mpb->num_raid_devs); | |
0ec1f4e8 | 1548 | print_imsm_disk(__get_imsm_disk(mpb, super->disks->index), super->disks->index, reserved); |
604b746f JD |
1549 | if (super->bbm_log) { |
1550 | struct bbm_log *log = super->bbm_log; | |
1551 | ||
1552 | printf("\n"); | |
1553 | printf("Bad Block Management Log:\n"); | |
1554 | printf(" Log Size : %d\n", __le32_to_cpu(mpb->bbm_log_size)); | |
1555 | printf(" Signature : %x\n", __le32_to_cpu(log->signature)); | |
1556 | printf(" Entry Count : %d\n", __le32_to_cpu(log->entry_count)); | |
1557 | printf(" Spare Blocks : %d\n", __le32_to_cpu(log->reserved_spare_block_count)); | |
13a3b65d N |
1558 | printf(" First Spare : %llx\n", |
1559 | (unsigned long long) __le64_to_cpu(log->first_spare_lba)); | |
604b746f | 1560 | } |
44470971 DW |
1561 | for (i = 0; i < mpb->num_raid_devs; i++) { |
1562 | struct mdinfo info; | |
1563 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
1564 | ||
1565 | super->current_vol = i; | |
a5d85af7 | 1566 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1567 | fname_from_uuid(st, &info, nbuf, ':'); |
c47b0ff6 | 1568 | print_imsm_dev(super, dev, nbuf + 5, super->disks->index); |
44470971 | 1569 | } |
cdddbdbc DW |
1570 | for (i = 0; i < mpb->num_disks; i++) { |
1571 | if (i == super->disks->index) | |
1572 | continue; | |
0ec1f4e8 | 1573 | print_imsm_disk(__get_imsm_disk(mpb, i), i, reserved); |
cdddbdbc | 1574 | } |
94827db3 | 1575 | |
0ec1f4e8 DW |
1576 | for (dl = super->disks; dl; dl = dl->next) |
1577 | if (dl->index == -1) | |
1578 | print_imsm_disk(&dl->disk, -1, reserved); | |
520e69e2 AK |
1579 | |
1580 | examine_migr_rec_imsm(super); | |
cdddbdbc DW |
1581 | } |
1582 | ||
061f2c6a | 1583 | static void brief_examine_super_imsm(struct supertype *st, int verbose) |
cdddbdbc | 1584 | { |
27fd6274 | 1585 | /* We just write a generic IMSM ARRAY entry */ |
ff54de6e N |
1586 | struct mdinfo info; |
1587 | char nbuf[64]; | |
1e7bc0ed | 1588 | struct intel_super *super = st->sb; |
1e7bc0ed | 1589 | |
0d5a423f DW |
1590 | if (!super->anchor->num_raid_devs) { |
1591 | printf("ARRAY metadata=imsm\n"); | |
1e7bc0ed | 1592 | return; |
0d5a423f | 1593 | } |
ff54de6e | 1594 | |
a5d85af7 | 1595 | getinfo_super_imsm(st, &info, NULL); |
4737ae25 N |
1596 | fname_from_uuid(st, &info, nbuf, ':'); |
1597 | printf("ARRAY metadata=imsm UUID=%s\n", nbuf + 5); | |
1598 | } | |
1599 | ||
1600 | static void brief_examine_subarrays_imsm(struct supertype *st, int verbose) | |
1601 | { | |
1602 | /* We just write a generic IMSM ARRAY entry */ | |
1603 | struct mdinfo info; | |
1604 | char nbuf[64]; | |
1605 | char nbuf1[64]; | |
1606 | struct intel_super *super = st->sb; | |
1607 | int i; | |
1608 | ||
1609 | if (!super->anchor->num_raid_devs) | |
1610 | return; | |
1611 | ||
a5d85af7 | 1612 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1613 | fname_from_uuid(st, &info, nbuf, ':'); |
1e7bc0ed DW |
1614 | for (i = 0; i < super->anchor->num_raid_devs; i++) { |
1615 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
1616 | ||
1617 | super->current_vol = i; | |
a5d85af7 | 1618 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1619 | fname_from_uuid(st, &info, nbuf1, ':'); |
1124b3cf | 1620 | printf("ARRAY /dev/md/%.16s container=%s member=%d UUID=%s\n", |
cf8de691 | 1621 | dev->volume, nbuf + 5, i, nbuf1 + 5); |
1e7bc0ed | 1622 | } |
cdddbdbc DW |
1623 | } |
1624 | ||
9d84c8ea DW |
1625 | static void export_examine_super_imsm(struct supertype *st) |
1626 | { | |
1627 | struct intel_super *super = st->sb; | |
1628 | struct imsm_super *mpb = super->anchor; | |
1629 | struct mdinfo info; | |
1630 | char nbuf[64]; | |
1631 | ||
a5d85af7 | 1632 | getinfo_super_imsm(st, &info, NULL); |
9d84c8ea DW |
1633 | fname_from_uuid(st, &info, nbuf, ':'); |
1634 | printf("MD_METADATA=imsm\n"); | |
1635 | printf("MD_LEVEL=container\n"); | |
1636 | printf("MD_UUID=%s\n", nbuf+5); | |
1637 | printf("MD_DEVICES=%u\n", mpb->num_disks); | |
1638 | } | |
1639 | ||
74db60b0 N |
1640 | static int copy_metadata_imsm(struct supertype *st, int from, int to) |
1641 | { | |
f36a9ecd | 1642 | /* The second last sector of the device contains |
74db60b0 N |
1643 | * the "struct imsm_super" metadata. |
1644 | * This contains mpb_size which is the size in bytes of the | |
1645 | * extended metadata. This is located immediately before | |
1646 | * the imsm_super. | |
1647 | * We want to read all that, plus the last sector which | |
1648 | * may contain a migration record, and write it all | |
1649 | * to the target. | |
1650 | */ | |
1651 | void *buf; | |
1652 | unsigned long long dsize, offset; | |
1653 | int sectors; | |
1654 | struct imsm_super *sb; | |
f36a9ecd PB |
1655 | struct intel_super *super = st->sb; |
1656 | unsigned int sector_size = super->sector_size; | |
1657 | unsigned int written = 0; | |
74db60b0 | 1658 | |
de44e46f | 1659 | if (posix_memalign(&buf, MAX_SECTOR_SIZE, MAX_SECTOR_SIZE) != 0) |
74db60b0 N |
1660 | return 1; |
1661 | ||
1662 | if (!get_dev_size(from, NULL, &dsize)) | |
1663 | goto err; | |
1664 | ||
f36a9ecd | 1665 | if (lseek64(from, dsize-(2*sector_size), 0) < 0) |
74db60b0 | 1666 | goto err; |
f36a9ecd | 1667 | if (read(from, buf, sector_size) != sector_size) |
74db60b0 N |
1668 | goto err; |
1669 | sb = buf; | |
1670 | if (strncmp((char*)sb->sig, MPB_SIGNATURE, MPB_SIG_LEN) != 0) | |
1671 | goto err; | |
1672 | ||
f36a9ecd PB |
1673 | sectors = mpb_sectors(sb, sector_size) + 2; |
1674 | offset = dsize - sectors * sector_size; | |
74db60b0 N |
1675 | if (lseek64(from, offset, 0) < 0 || |
1676 | lseek64(to, offset, 0) < 0) | |
1677 | goto err; | |
f36a9ecd PB |
1678 | while (written < sectors * sector_size) { |
1679 | int n = sectors*sector_size - written; | |
74db60b0 N |
1680 | if (n > 4096) |
1681 | n = 4096; | |
1682 | if (read(from, buf, n) != n) | |
1683 | goto err; | |
1684 | if (write(to, buf, n) != n) | |
1685 | goto err; | |
1686 | written += n; | |
1687 | } | |
1688 | free(buf); | |
1689 | return 0; | |
1690 | err: | |
1691 | free(buf); | |
1692 | return 1; | |
1693 | } | |
1694 | ||
cdddbdbc DW |
1695 | static void detail_super_imsm(struct supertype *st, char *homehost) |
1696 | { | |
3ebe00a1 DW |
1697 | struct mdinfo info; |
1698 | char nbuf[64]; | |
1699 | ||
a5d85af7 | 1700 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1701 | fname_from_uuid(st, &info, nbuf, ':'); |
3ebe00a1 | 1702 | printf("\n UUID : %s\n", nbuf + 5); |
cdddbdbc DW |
1703 | } |
1704 | ||
1705 | static void brief_detail_super_imsm(struct supertype *st) | |
1706 | { | |
ff54de6e N |
1707 | struct mdinfo info; |
1708 | char nbuf[64]; | |
a5d85af7 | 1709 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1710 | fname_from_uuid(st, &info, nbuf, ':'); |
ff54de6e | 1711 | printf(" UUID=%s", nbuf + 5); |
cdddbdbc | 1712 | } |
d665cc31 DW |
1713 | |
1714 | static int imsm_read_serial(int fd, char *devname, __u8 *serial); | |
1715 | static void fd2devname(int fd, char *name); | |
1716 | ||
120dc887 | 1717 | static int ahci_enumerate_ports(const char *hba_path, int port_count, int host_base, int verbose) |
d665cc31 | 1718 | { |
120dc887 LM |
1719 | /* dump an unsorted list of devices attached to AHCI Intel storage |
1720 | * controller, as well as non-connected ports | |
d665cc31 DW |
1721 | */ |
1722 | int hba_len = strlen(hba_path) + 1; | |
1723 | struct dirent *ent; | |
1724 | DIR *dir; | |
1725 | char *path = NULL; | |
1726 | int err = 0; | |
1727 | unsigned long port_mask = (1 << port_count) - 1; | |
1728 | ||
f21e18ca | 1729 | if (port_count > (int)sizeof(port_mask) * 8) { |
ba728be7 | 1730 | if (verbose > 0) |
e7b84f9d | 1731 | pr_err("port_count %d out of range\n", port_count); |
d665cc31 DW |
1732 | return 2; |
1733 | } | |
1734 | ||
1735 | /* scroll through /sys/dev/block looking for devices attached to | |
1736 | * this hba | |
1737 | */ | |
1738 | dir = opendir("/sys/dev/block"); | |
1a6dd6b9 PB |
1739 | if (!dir) |
1740 | return 1; | |
1741 | ||
1742 | for (ent = readdir(dir); ent; ent = readdir(dir)) { | |
d665cc31 DW |
1743 | int fd; |
1744 | char model[64]; | |
1745 | char vendor[64]; | |
1746 | char buf[1024]; | |
1747 | int major, minor; | |
1748 | char *device; | |
1749 | char *c; | |
1750 | int port; | |
1751 | int type; | |
1752 | ||
1753 | if (sscanf(ent->d_name, "%d:%d", &major, &minor) != 2) | |
1754 | continue; | |
1755 | path = devt_to_devpath(makedev(major, minor)); | |
1756 | if (!path) | |
1757 | continue; | |
1758 | if (!path_attached_to_hba(path, hba_path)) { | |
1759 | free(path); | |
1760 | path = NULL; | |
1761 | continue; | |
1762 | } | |
1763 | ||
1764 | /* retrieve the scsi device type */ | |
1765 | if (asprintf(&device, "/sys/dev/block/%d:%d/device/xxxxxxx", major, minor) < 0) { | |
ba728be7 | 1766 | if (verbose > 0) |
e7b84f9d | 1767 | pr_err("failed to allocate 'device'\n"); |
d665cc31 DW |
1768 | err = 2; |
1769 | break; | |
1770 | } | |
1771 | sprintf(device, "/sys/dev/block/%d:%d/device/type", major, minor); | |
193b6c0b | 1772 | if (load_sys(device, buf, sizeof(buf)) != 0) { |
ba728be7 | 1773 | if (verbose > 0) |
e7b84f9d | 1774 | pr_err("failed to read device type for %s\n", |
d665cc31 DW |
1775 | path); |
1776 | err = 2; | |
1777 | free(device); | |
1778 | break; | |
1779 | } | |
1780 | type = strtoul(buf, NULL, 10); | |
1781 | ||
1782 | /* if it's not a disk print the vendor and model */ | |
1783 | if (!(type == 0 || type == 7 || type == 14)) { | |
1784 | vendor[0] = '\0'; | |
1785 | model[0] = '\0'; | |
1786 | sprintf(device, "/sys/dev/block/%d:%d/device/vendor", major, minor); | |
193b6c0b | 1787 | if (load_sys(device, buf, sizeof(buf)) == 0) { |
d665cc31 DW |
1788 | strncpy(vendor, buf, sizeof(vendor)); |
1789 | vendor[sizeof(vendor) - 1] = '\0'; | |
1790 | c = (char *) &vendor[sizeof(vendor) - 1]; | |
1791 | while (isspace(*c) || *c == '\0') | |
1792 | *c-- = '\0'; | |
1793 | ||
1794 | } | |
1795 | sprintf(device, "/sys/dev/block/%d:%d/device/model", major, minor); | |
193b6c0b | 1796 | if (load_sys(device, buf, sizeof(buf)) == 0) { |
d665cc31 DW |
1797 | strncpy(model, buf, sizeof(model)); |
1798 | model[sizeof(model) - 1] = '\0'; | |
1799 | c = (char *) &model[sizeof(model) - 1]; | |
1800 | while (isspace(*c) || *c == '\0') | |
1801 | *c-- = '\0'; | |
1802 | } | |
1803 | ||
1804 | if (vendor[0] && model[0]) | |
1805 | sprintf(buf, "%.64s %.64s", vendor, model); | |
1806 | else | |
1807 | switch (type) { /* numbers from hald/linux/device.c */ | |
1808 | case 1: sprintf(buf, "tape"); break; | |
1809 | case 2: sprintf(buf, "printer"); break; | |
1810 | case 3: sprintf(buf, "processor"); break; | |
1811 | case 4: | |
1812 | case 5: sprintf(buf, "cdrom"); break; | |
1813 | case 6: sprintf(buf, "scanner"); break; | |
1814 | case 8: sprintf(buf, "media_changer"); break; | |
1815 | case 9: sprintf(buf, "comm"); break; | |
1816 | case 12: sprintf(buf, "raid"); break; | |
1817 | default: sprintf(buf, "unknown"); | |
1818 | } | |
1819 | } else | |
1820 | buf[0] = '\0'; | |
1821 | free(device); | |
1822 | ||
1823 | /* chop device path to 'host%d' and calculate the port number */ | |
1824 | c = strchr(&path[hba_len], '/'); | |
4e5e717d | 1825 | if (!c) { |
ba728be7 | 1826 | if (verbose > 0) |
e7b84f9d | 1827 | pr_err("%s - invalid path name\n", path + hba_len); |
4e5e717d AW |
1828 | err = 2; |
1829 | break; | |
1830 | } | |
d665cc31 | 1831 | *c = '\0'; |
0858eccf AP |
1832 | if ((sscanf(&path[hba_len], "ata%d", &port) == 1) || |
1833 | ((sscanf(&path[hba_len], "host%d", &port) == 1))) | |
d665cc31 DW |
1834 | port -= host_base; |
1835 | else { | |
ba728be7 | 1836 | if (verbose > 0) { |
d665cc31 | 1837 | *c = '/'; /* repair the full string */ |
e7b84f9d | 1838 | pr_err("failed to determine port number for %s\n", |
d665cc31 DW |
1839 | path); |
1840 | } | |
1841 | err = 2; | |
1842 | break; | |
1843 | } | |
1844 | ||
1845 | /* mark this port as used */ | |
1846 | port_mask &= ~(1 << port); | |
1847 | ||
1848 | /* print out the device information */ | |
1849 | if (buf[0]) { | |
1850 | printf(" Port%d : - non-disk device (%s) -\n", port, buf); | |
1851 | continue; | |
1852 | } | |
1853 | ||
1854 | fd = dev_open(ent->d_name, O_RDONLY); | |
1855 | if (fd < 0) | |
1856 | printf(" Port%d : - disk info unavailable -\n", port); | |
1857 | else { | |
1858 | fd2devname(fd, buf); | |
1859 | printf(" Port%d : %s", port, buf); | |
1860 | if (imsm_read_serial(fd, NULL, (__u8 *) buf) == 0) | |
664d5325 | 1861 | printf(" (%.*s)\n", MAX_RAID_SERIAL_LEN, buf); |
d665cc31 | 1862 | else |
664d5325 | 1863 | printf(" ()\n"); |
4dab422a | 1864 | close(fd); |
d665cc31 | 1865 | } |
d665cc31 DW |
1866 | free(path); |
1867 | path = NULL; | |
1868 | } | |
1869 | if (path) | |
1870 | free(path); | |
1871 | if (dir) | |
1872 | closedir(dir); | |
1873 | if (err == 0) { | |
1874 | int i; | |
1875 | ||
1876 | for (i = 0; i < port_count; i++) | |
1877 | if (port_mask & (1 << i)) | |
1878 | printf(" Port%d : - no device attached -\n", i); | |
1879 | } | |
1880 | ||
1881 | return err; | |
1882 | } | |
1883 | ||
b5eece69 | 1884 | static int print_vmd_attached_devs(struct sys_dev *hba) |
60f0f54d PB |
1885 | { |
1886 | struct dirent *ent; | |
1887 | DIR *dir; | |
1888 | char path[292]; | |
1889 | char link[256]; | |
1890 | char *c, *rp; | |
1891 | ||
1892 | if (hba->type != SYS_DEV_VMD) | |
b5eece69 | 1893 | return 1; |
60f0f54d PB |
1894 | |
1895 | /* scroll through /sys/dev/block looking for devices attached to | |
1896 | * this hba | |
1897 | */ | |
1898 | dir = opendir("/sys/bus/pci/drivers/nvme"); | |
b9135011 | 1899 | if (!dir) |
b5eece69 | 1900 | return 1; |
b9135011 JS |
1901 | |
1902 | for (ent = readdir(dir); ent; ent = readdir(dir)) { | |
60f0f54d PB |
1903 | int n; |
1904 | ||
1905 | /* is 'ent' a device? check that the 'subsystem' link exists and | |
1906 | * that its target matches 'bus' | |
1907 | */ | |
1908 | sprintf(path, "/sys/bus/pci/drivers/nvme/%s/subsystem", | |
1909 | ent->d_name); | |
1910 | n = readlink(path, link, sizeof(link)); | |
1911 | if (n < 0 || n >= (int)sizeof(link)) | |
1912 | continue; | |
1913 | link[n] = '\0'; | |
1914 | c = strrchr(link, '/'); | |
1915 | if (!c) | |
1916 | continue; | |
1917 | if (strncmp("pci", c+1, strlen("pci")) != 0) | |
1918 | continue; | |
1919 | ||
1920 | sprintf(path, "/sys/bus/pci/drivers/nvme/%s", ent->d_name); | |
1921 | /* if not a intel NVMe - skip it*/ | |
1922 | if (devpath_to_vendor(path) != 0x8086) | |
1923 | continue; | |
1924 | ||
1925 | rp = realpath(path, NULL); | |
1926 | if (!rp) | |
1927 | continue; | |
1928 | ||
1929 | if (path_attached_to_hba(rp, hba->path)) { | |
1930 | printf(" NVMe under VMD : %s\n", rp); | |
1931 | } | |
1932 | free(rp); | |
1933 | } | |
1934 | ||
b9135011 | 1935 | closedir(dir); |
b5eece69 | 1936 | return 0; |
60f0f54d PB |
1937 | } |
1938 | ||
120dc887 LM |
1939 | static void print_found_intel_controllers(struct sys_dev *elem) |
1940 | { | |
1941 | for (; elem; elem = elem->next) { | |
e7b84f9d | 1942 | pr_err("found Intel(R) "); |
120dc887 LM |
1943 | if (elem->type == SYS_DEV_SATA) |
1944 | fprintf(stderr, "SATA "); | |
155cbb4c LM |
1945 | else if (elem->type == SYS_DEV_SAS) |
1946 | fprintf(stderr, "SAS "); | |
0858eccf AP |
1947 | else if (elem->type == SYS_DEV_NVME) |
1948 | fprintf(stderr, "NVMe "); | |
60f0f54d PB |
1949 | |
1950 | if (elem->type == SYS_DEV_VMD) | |
1951 | fprintf(stderr, "VMD domain"); | |
1952 | else | |
1953 | fprintf(stderr, "RAID controller"); | |
1954 | ||
120dc887 LM |
1955 | if (elem->pci_id) |
1956 | fprintf(stderr, " at %s", elem->pci_id); | |
1957 | fprintf(stderr, ".\n"); | |
1958 | } | |
1959 | fflush(stderr); | |
1960 | } | |
1961 | ||
120dc887 LM |
1962 | static int ahci_get_port_count(const char *hba_path, int *port_count) |
1963 | { | |
1964 | struct dirent *ent; | |
1965 | DIR *dir; | |
1966 | int host_base = -1; | |
1967 | ||
1968 | *port_count = 0; | |
1969 | if ((dir = opendir(hba_path)) == NULL) | |
1970 | return -1; | |
1971 | ||
1972 | for (ent = readdir(dir); ent; ent = readdir(dir)) { | |
1973 | int host; | |
1974 | ||
0858eccf AP |
1975 | if ((sscanf(ent->d_name, "ata%d", &host) != 1) && |
1976 | ((sscanf(ent->d_name, "host%d", &host) != 1))) | |
120dc887 LM |
1977 | continue; |
1978 | if (*port_count == 0) | |
1979 | host_base = host; | |
1980 | else if (host < host_base) | |
1981 | host_base = host; | |
1982 | ||
1983 | if (host + 1 > *port_count + host_base) | |
1984 | *port_count = host + 1 - host_base; | |
1985 | } | |
1986 | closedir(dir); | |
1987 | return host_base; | |
1988 | } | |
1989 | ||
a891a3c2 LM |
1990 | static void print_imsm_capability(const struct imsm_orom *orom) |
1991 | { | |
0858eccf AP |
1992 | printf(" Platform : Intel(R) "); |
1993 | if (orom->capabilities == 0 && orom->driver_features == 0) | |
1994 | printf("Matrix Storage Manager\n"); | |
1995 | else | |
1996 | printf("Rapid Storage Technology%s\n", | |
1997 | imsm_orom_is_enterprise(orom) ? " enterprise" : ""); | |
1998 | if (orom->major_ver || orom->minor_ver || orom->hotfix_ver || orom->build) | |
1999 | printf(" Version : %d.%d.%d.%d\n", orom->major_ver, | |
2000 | orom->minor_ver, orom->hotfix_ver, orom->build); | |
a891a3c2 LM |
2001 | printf(" RAID Levels :%s%s%s%s%s\n", |
2002 | imsm_orom_has_raid0(orom) ? " raid0" : "", | |
2003 | imsm_orom_has_raid1(orom) ? " raid1" : "", | |
2004 | imsm_orom_has_raid1e(orom) ? " raid1e" : "", | |
2005 | imsm_orom_has_raid10(orom) ? " raid10" : "", | |
2006 | imsm_orom_has_raid5(orom) ? " raid5" : ""); | |
2007 | printf(" Chunk Sizes :%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", | |
2008 | imsm_orom_has_chunk(orom, 2) ? " 2k" : "", | |
2009 | imsm_orom_has_chunk(orom, 4) ? " 4k" : "", | |
2010 | imsm_orom_has_chunk(orom, 8) ? " 8k" : "", | |
2011 | imsm_orom_has_chunk(orom, 16) ? " 16k" : "", | |
2012 | imsm_orom_has_chunk(orom, 32) ? " 32k" : "", | |
2013 | imsm_orom_has_chunk(orom, 64) ? " 64k" : "", | |
2014 | imsm_orom_has_chunk(orom, 128) ? " 128k" : "", | |
2015 | imsm_orom_has_chunk(orom, 256) ? " 256k" : "", | |
2016 | imsm_orom_has_chunk(orom, 512) ? " 512k" : "", | |
2017 | imsm_orom_has_chunk(orom, 1024*1) ? " 1M" : "", | |
2018 | imsm_orom_has_chunk(orom, 1024*2) ? " 2M" : "", | |
2019 | imsm_orom_has_chunk(orom, 1024*4) ? " 4M" : "", | |
2020 | imsm_orom_has_chunk(orom, 1024*8) ? " 8M" : "", | |
2021 | imsm_orom_has_chunk(orom, 1024*16) ? " 16M" : "", | |
2022 | imsm_orom_has_chunk(orom, 1024*32) ? " 32M" : "", | |
2023 | imsm_orom_has_chunk(orom, 1024*64) ? " 64M" : ""); | |
29cd0821 CA |
2024 | printf(" 2TB volumes :%s supported\n", |
2025 | (orom->attr & IMSM_OROM_ATTR_2TB)?"":" not"); | |
2026 | printf(" 2TB disks :%s supported\n", | |
2027 | (orom->attr & IMSM_OROM_ATTR_2TB_DISK)?"":" not"); | |
0e7f69a8 | 2028 | printf(" Max Disks : %d\n", orom->tds); |
0858eccf AP |
2029 | printf(" Max Volumes : %d per array, %d per %s\n", |
2030 | orom->vpa, orom->vphba, | |
2031 | imsm_orom_is_nvme(orom) ? "platform" : "controller"); | |
a891a3c2 LM |
2032 | return; |
2033 | } | |
2034 | ||
e50cf220 MN |
2035 | static void print_imsm_capability_export(const struct imsm_orom *orom) |
2036 | { | |
2037 | printf("MD_FIRMWARE_TYPE=imsm\n"); | |
0858eccf AP |
2038 | if (orom->major_ver || orom->minor_ver || orom->hotfix_ver || orom->build) |
2039 | printf("IMSM_VERSION=%d.%d.%d.%d\n", orom->major_ver, orom->minor_ver, | |
2040 | orom->hotfix_ver, orom->build); | |
e50cf220 MN |
2041 | printf("IMSM_SUPPORTED_RAID_LEVELS=%s%s%s%s%s\n", |
2042 | imsm_orom_has_raid0(orom) ? "raid0 " : "", | |
2043 | imsm_orom_has_raid1(orom) ? "raid1 " : "", | |
2044 | imsm_orom_has_raid1e(orom) ? "raid1e " : "", | |
2045 | imsm_orom_has_raid5(orom) ? "raid10 " : "", | |
2046 | imsm_orom_has_raid10(orom) ? "raid5 " : ""); | |
2047 | printf("IMSM_SUPPORTED_CHUNK_SIZES=%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", | |
2048 | imsm_orom_has_chunk(orom, 2) ? "2k " : "", | |
2049 | imsm_orom_has_chunk(orom, 4) ? "4k " : "", | |
2050 | imsm_orom_has_chunk(orom, 8) ? "8k " : "", | |
2051 | imsm_orom_has_chunk(orom, 16) ? "16k " : "", | |
2052 | imsm_orom_has_chunk(orom, 32) ? "32k " : "", | |
2053 | imsm_orom_has_chunk(orom, 64) ? "64k " : "", | |
2054 | imsm_orom_has_chunk(orom, 128) ? "128k " : "", | |
2055 | imsm_orom_has_chunk(orom, 256) ? "256k " : "", | |
2056 | imsm_orom_has_chunk(orom, 512) ? "512k " : "", | |
2057 | imsm_orom_has_chunk(orom, 1024*1) ? "1M " : "", | |
2058 | imsm_orom_has_chunk(orom, 1024*2) ? "2M " : "", | |
2059 | imsm_orom_has_chunk(orom, 1024*4) ? "4M " : "", | |
2060 | imsm_orom_has_chunk(orom, 1024*8) ? "8M " : "", | |
2061 | imsm_orom_has_chunk(orom, 1024*16) ? "16M " : "", | |
2062 | imsm_orom_has_chunk(orom, 1024*32) ? "32M " : "", | |
2063 | imsm_orom_has_chunk(orom, 1024*64) ? "64M " : ""); | |
2064 | printf("IMSM_2TB_VOLUMES=%s\n",(orom->attr & IMSM_OROM_ATTR_2TB) ? "yes" : "no"); | |
2065 | printf("IMSM_2TB_DISKS=%s\n",(orom->attr & IMSM_OROM_ATTR_2TB_DISK) ? "yes" : "no"); | |
2066 | printf("IMSM_MAX_DISKS=%d\n",orom->tds); | |
2067 | printf("IMSM_MAX_VOLUMES_PER_ARRAY=%d\n",orom->vpa); | |
2068 | printf("IMSM_MAX_VOLUMES_PER_CONTROLLER=%d\n",orom->vphba); | |
2069 | } | |
2070 | ||
9eafa1de | 2071 | static int detail_platform_imsm(int verbose, int enumerate_only, char *controller_path) |
d665cc31 DW |
2072 | { |
2073 | /* There are two components to imsm platform support, the ahci SATA | |
2074 | * controller and the option-rom. To find the SATA controller we | |
2075 | * simply look in /sys/bus/pci/drivers/ahci to see if an ahci | |
2076 | * controller with the Intel vendor id is present. This approach | |
2077 | * allows mdadm to leverage the kernel's ahci detection logic, with the | |
2078 | * caveat that if ahci.ko is not loaded mdadm will not be able to | |
2079 | * detect platform raid capabilities. The option-rom resides in a | |
2080 | * platform "Adapter ROM". We scan for its signature to retrieve the | |
2081 | * platform capabilities. If raid support is disabled in the BIOS the | |
2082 | * option-rom capability structure will not be available. | |
2083 | */ | |
d665cc31 | 2084 | struct sys_dev *list, *hba; |
d665cc31 DW |
2085 | int host_base = 0; |
2086 | int port_count = 0; | |
9eafa1de | 2087 | int result=1; |
d665cc31 | 2088 | |
5615172f | 2089 | if (enumerate_only) { |
a891a3c2 | 2090 | if (check_env("IMSM_NO_PLATFORM")) |
5615172f | 2091 | return 0; |
a891a3c2 LM |
2092 | list = find_intel_devices(); |
2093 | if (!list) | |
2094 | return 2; | |
2095 | for (hba = list; hba; hba = hba->next) { | |
6b781d33 AP |
2096 | if (find_imsm_capability(hba)) { |
2097 | result = 0; | |
a891a3c2 LM |
2098 | break; |
2099 | } | |
9eafa1de | 2100 | else |
6b781d33 | 2101 | result = 2; |
a891a3c2 | 2102 | } |
a891a3c2 | 2103 | return result; |
5615172f DW |
2104 | } |
2105 | ||
155cbb4c LM |
2106 | list = find_intel_devices(); |
2107 | if (!list) { | |
ba728be7 | 2108 | if (verbose > 0) |
7a862a02 | 2109 | pr_err("no active Intel(R) RAID controller found.\n"); |
d665cc31 | 2110 | return 2; |
ba728be7 | 2111 | } else if (verbose > 0) |
155cbb4c | 2112 | print_found_intel_controllers(list); |
d665cc31 | 2113 | |
a891a3c2 | 2114 | for (hba = list; hba; hba = hba->next) { |
0858eccf | 2115 | if (controller_path && (compare_paths(hba->path, controller_path) != 0)) |
9eafa1de | 2116 | continue; |
0858eccf | 2117 | if (!find_imsm_capability(hba)) { |
60f0f54d | 2118 | char buf[PATH_MAX]; |
e7b84f9d | 2119 | pr_err("imsm capabilities not found for controller: %s (type %s)\n", |
60f0f54d PB |
2120 | hba->type == SYS_DEV_VMD ? vmd_domain_to_controller(hba, buf) : hba->path, |
2121 | get_sys_dev_type(hba->type)); | |
0858eccf AP |
2122 | continue; |
2123 | } | |
2124 | result = 0; | |
2125 | } | |
2126 | ||
2127 | if (controller_path && result == 1) { | |
2128 | pr_err("no active Intel(R) RAID controller found under %s\n", | |
2129 | controller_path); | |
2130 | return result; | |
2131 | } | |
2132 | ||
5e1d6128 | 2133 | const struct orom_entry *entry; |
0858eccf | 2134 | |
5e1d6128 | 2135 | for (entry = orom_entries; entry; entry = entry->next) { |
60f0f54d | 2136 | if (entry->type == SYS_DEV_VMD) { |
07cb1e57 | 2137 | print_imsm_capability(&entry->orom); |
60f0f54d PB |
2138 | for (hba = list; hba; hba = hba->next) { |
2139 | if (hba->type == SYS_DEV_VMD) { | |
2140 | char buf[PATH_MAX]; | |
60f0f54d PB |
2141 | printf(" I/O Controller : %s (%s)\n", |
2142 | vmd_domain_to_controller(hba, buf), get_sys_dev_type(hba->type)); | |
b5eece69 PB |
2143 | if (print_vmd_attached_devs(hba)) { |
2144 | if (verbose > 0) | |
2145 | pr_err("failed to get devices attached to VMD domain.\n"); | |
2146 | result |= 2; | |
2147 | } | |
60f0f54d PB |
2148 | } |
2149 | } | |
07cb1e57 | 2150 | printf("\n"); |
60f0f54d PB |
2151 | continue; |
2152 | } | |
0858eccf | 2153 | |
60f0f54d PB |
2154 | print_imsm_capability(&entry->orom); |
2155 | if (entry->type == SYS_DEV_NVME) { | |
0858eccf AP |
2156 | for (hba = list; hba; hba = hba->next) { |
2157 | if (hba->type == SYS_DEV_NVME) | |
2158 | printf(" NVMe Device : %s\n", hba->path); | |
2159 | } | |
60f0f54d | 2160 | printf("\n"); |
0858eccf AP |
2161 | continue; |
2162 | } | |
2163 | ||
2164 | struct devid_list *devid; | |
5e1d6128 | 2165 | for (devid = entry->devid_list; devid; devid = devid->next) { |
0858eccf AP |
2166 | hba = device_by_id(devid->devid); |
2167 | if (!hba) | |
2168 | continue; | |
2169 | ||
9eafa1de MN |
2170 | printf(" I/O Controller : %s (%s)\n", |
2171 | hba->path, get_sys_dev_type(hba->type)); | |
2172 | if (hba->type == SYS_DEV_SATA) { | |
2173 | host_base = ahci_get_port_count(hba->path, &port_count); | |
2174 | if (ahci_enumerate_ports(hba->path, port_count, host_base, verbose)) { | |
2175 | if (verbose > 0) | |
7a862a02 | 2176 | pr_err("failed to enumerate ports on SATA controller at %s.\n", hba->pci_id); |
9eafa1de MN |
2177 | result |= 2; |
2178 | } | |
120dc887 LM |
2179 | } |
2180 | } | |
0858eccf | 2181 | printf("\n"); |
d665cc31 | 2182 | } |
155cbb4c | 2183 | |
120dc887 | 2184 | return result; |
d665cc31 | 2185 | } |
e50cf220 | 2186 | |
9eafa1de | 2187 | static int export_detail_platform_imsm(int verbose, char *controller_path) |
e50cf220 | 2188 | { |
e50cf220 MN |
2189 | struct sys_dev *list, *hba; |
2190 | int result=1; | |
2191 | ||
2192 | list = find_intel_devices(); | |
2193 | if (!list) { | |
2194 | if (verbose > 0) | |
2195 | pr_err("IMSM_DETAIL_PLATFORM_ERROR=NO_INTEL_DEVICES\n"); | |
2196 | result = 2; | |
e50cf220 MN |
2197 | return result; |
2198 | } | |
2199 | ||
2200 | for (hba = list; hba; hba = hba->next) { | |
9eafa1de MN |
2201 | if (controller_path && (compare_paths(hba->path,controller_path) != 0)) |
2202 | continue; | |
60f0f54d PB |
2203 | if (!find_imsm_capability(hba) && verbose > 0) { |
2204 | char buf[PATH_MAX]; | |
2205 | pr_err("IMSM_DETAIL_PLATFORM_ERROR=NO_IMSM_CAPABLE_DEVICE_UNDER_%s\n", | |
2206 | hba->type == SYS_DEV_VMD ? vmd_domain_to_controller(hba, buf) : hba->path); | |
2207 | } | |
0858eccf | 2208 | else |
e50cf220 | 2209 | result = 0; |
e50cf220 MN |
2210 | } |
2211 | ||
5e1d6128 | 2212 | const struct orom_entry *entry; |
0858eccf | 2213 | |
60f0f54d PB |
2214 | for (entry = orom_entries; entry; entry = entry->next) { |
2215 | if (entry->type == SYS_DEV_VMD) { | |
2216 | for (hba = list; hba; hba = hba->next) | |
2217 | print_imsm_capability_export(&entry->orom); | |
2218 | continue; | |
2219 | } | |
5e1d6128 | 2220 | print_imsm_capability_export(&entry->orom); |
60f0f54d | 2221 | } |
0858eccf | 2222 | |
e50cf220 MN |
2223 | return result; |
2224 | } | |
2225 | ||
cdddbdbc DW |
2226 | #endif |
2227 | ||
2228 | static int match_home_imsm(struct supertype *st, char *homehost) | |
2229 | { | |
5115ca67 DW |
2230 | /* the imsm metadata format does not specify any host |
2231 | * identification information. We return -1 since we can never | |
2232 | * confirm nor deny whether a given array is "meant" for this | |
148acb7b | 2233 | * host. We rely on compare_super and the 'family_num' fields to |
5115ca67 DW |
2234 | * exclude member disks that do not belong, and we rely on |
2235 | * mdadm.conf to specify the arrays that should be assembled. | |
2236 | * Auto-assembly may still pick up "foreign" arrays. | |
2237 | */ | |
cdddbdbc | 2238 | |
9362c1c8 | 2239 | return -1; |
cdddbdbc DW |
2240 | } |
2241 | ||
2242 | static void uuid_from_super_imsm(struct supertype *st, int uuid[4]) | |
2243 | { | |
51006d85 N |
2244 | /* The uuid returned here is used for: |
2245 | * uuid to put into bitmap file (Create, Grow) | |
2246 | * uuid for backup header when saving critical section (Grow) | |
2247 | * comparing uuids when re-adding a device into an array | |
2248 | * In these cases the uuid required is that of the data-array, | |
2249 | * not the device-set. | |
2250 | * uuid to recognise same set when adding a missing device back | |
2251 | * to an array. This is a uuid for the device-set. | |
1011e834 | 2252 | * |
51006d85 N |
2253 | * For each of these we can make do with a truncated |
2254 | * or hashed uuid rather than the original, as long as | |
2255 | * everyone agrees. | |
2256 | * In each case the uuid required is that of the data-array, | |
2257 | * not the device-set. | |
43dad3d6 | 2258 | */ |
51006d85 N |
2259 | /* imsm does not track uuid's so we synthesis one using sha1 on |
2260 | * - The signature (Which is constant for all imsm array, but no matter) | |
148acb7b | 2261 | * - the orig_family_num of the container |
51006d85 N |
2262 | * - the index number of the volume |
2263 | * - the 'serial' number of the volume. | |
2264 | * Hopefully these are all constant. | |
2265 | */ | |
2266 | struct intel_super *super = st->sb; | |
43dad3d6 | 2267 | |
51006d85 N |
2268 | char buf[20]; |
2269 | struct sha1_ctx ctx; | |
2270 | struct imsm_dev *dev = NULL; | |
148acb7b | 2271 | __u32 family_num; |
51006d85 | 2272 | |
148acb7b DW |
2273 | /* some mdadm versions failed to set ->orig_family_num, in which |
2274 | * case fall back to ->family_num. orig_family_num will be | |
2275 | * fixed up with the first metadata update. | |
2276 | */ | |
2277 | family_num = super->anchor->orig_family_num; | |
2278 | if (family_num == 0) | |
2279 | family_num = super->anchor->family_num; | |
51006d85 | 2280 | sha1_init_ctx(&ctx); |
92bd8f8d | 2281 | sha1_process_bytes(super->anchor->sig, MPB_SIG_LEN, &ctx); |
148acb7b | 2282 | sha1_process_bytes(&family_num, sizeof(__u32), &ctx); |
51006d85 N |
2283 | if (super->current_vol >= 0) |
2284 | dev = get_imsm_dev(super, super->current_vol); | |
2285 | if (dev) { | |
2286 | __u32 vol = super->current_vol; | |
2287 | sha1_process_bytes(&vol, sizeof(vol), &ctx); | |
2288 | sha1_process_bytes(dev->volume, MAX_RAID_SERIAL_LEN, &ctx); | |
2289 | } | |
2290 | sha1_finish_ctx(&ctx, buf); | |
2291 | memcpy(uuid, buf, 4*4); | |
cdddbdbc DW |
2292 | } |
2293 | ||
0d481d37 | 2294 | #if 0 |
4f5bc454 DW |
2295 | static void |
2296 | get_imsm_numerical_version(struct imsm_super *mpb, int *m, int *p) | |
cdddbdbc | 2297 | { |
cdddbdbc DW |
2298 | __u8 *v = get_imsm_version(mpb); |
2299 | __u8 *end = mpb->sig + MAX_SIGNATURE_LENGTH; | |
2300 | char major[] = { 0, 0, 0 }; | |
2301 | char minor[] = { 0 ,0, 0 }; | |
2302 | char patch[] = { 0, 0, 0 }; | |
2303 | char *ver_parse[] = { major, minor, patch }; | |
2304 | int i, j; | |
2305 | ||
2306 | i = j = 0; | |
2307 | while (*v != '\0' && v < end) { | |
2308 | if (*v != '.' && j < 2) | |
2309 | ver_parse[i][j++] = *v; | |
2310 | else { | |
2311 | i++; | |
2312 | j = 0; | |
2313 | } | |
2314 | v++; | |
2315 | } | |
2316 | ||
4f5bc454 DW |
2317 | *m = strtol(minor, NULL, 0); |
2318 | *p = strtol(patch, NULL, 0); | |
2319 | } | |
0d481d37 | 2320 | #endif |
4f5bc454 | 2321 | |
1e5c6983 DW |
2322 | static __u32 migr_strip_blocks_resync(struct imsm_dev *dev) |
2323 | { | |
2324 | /* migr_strip_size when repairing or initializing parity */ | |
238c0a71 | 2325 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
1e5c6983 DW |
2326 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); |
2327 | ||
2328 | switch (get_imsm_raid_level(map)) { | |
2329 | case 5: | |
2330 | case 10: | |
2331 | return chunk; | |
2332 | default: | |
2333 | return 128*1024 >> 9; | |
2334 | } | |
2335 | } | |
2336 | ||
2337 | static __u32 migr_strip_blocks_rebuild(struct imsm_dev *dev) | |
2338 | { | |
2339 | /* migr_strip_size when rebuilding a degraded disk, no idea why | |
2340 | * this is different than migr_strip_size_resync(), but it's good | |
2341 | * to be compatible | |
2342 | */ | |
238c0a71 | 2343 | struct imsm_map *map = get_imsm_map(dev, MAP_1); |
1e5c6983 DW |
2344 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); |
2345 | ||
2346 | switch (get_imsm_raid_level(map)) { | |
2347 | case 1: | |
2348 | case 10: | |
2349 | if (map->num_members % map->num_domains == 0) | |
2350 | return 128*1024 >> 9; | |
2351 | else | |
2352 | return chunk; | |
2353 | case 5: | |
2354 | return max((__u32) 64*1024 >> 9, chunk); | |
2355 | default: | |
2356 | return 128*1024 >> 9; | |
2357 | } | |
2358 | } | |
2359 | ||
2360 | static __u32 num_stripes_per_unit_resync(struct imsm_dev *dev) | |
2361 | { | |
238c0a71 AK |
2362 | struct imsm_map *lo = get_imsm_map(dev, MAP_0); |
2363 | struct imsm_map *hi = get_imsm_map(dev, MAP_1); | |
1e5c6983 DW |
2364 | __u32 lo_chunk = __le32_to_cpu(lo->blocks_per_strip); |
2365 | __u32 hi_chunk = __le32_to_cpu(hi->blocks_per_strip); | |
2366 | ||
2367 | return max((__u32) 1, hi_chunk / lo_chunk); | |
2368 | } | |
2369 | ||
2370 | static __u32 num_stripes_per_unit_rebuild(struct imsm_dev *dev) | |
2371 | { | |
238c0a71 | 2372 | struct imsm_map *lo = get_imsm_map(dev, MAP_0); |
1e5c6983 DW |
2373 | int level = get_imsm_raid_level(lo); |
2374 | ||
2375 | if (level == 1 || level == 10) { | |
238c0a71 | 2376 | struct imsm_map *hi = get_imsm_map(dev, MAP_1); |
1e5c6983 DW |
2377 | |
2378 | return hi->num_domains; | |
2379 | } else | |
2380 | return num_stripes_per_unit_resync(dev); | |
2381 | } | |
2382 | ||
98130f40 | 2383 | static __u8 imsm_num_data_members(struct imsm_dev *dev, int second_map) |
1e5c6983 DW |
2384 | { |
2385 | /* named 'imsm_' because raid0, raid1 and raid10 | |
2386 | * counter-intuitively have the same number of data disks | |
2387 | */ | |
98130f40 | 2388 | struct imsm_map *map = get_imsm_map(dev, second_map); |
1e5c6983 DW |
2389 | |
2390 | switch (get_imsm_raid_level(map)) { | |
2391 | case 0: | |
36fd8ccc AK |
2392 | return map->num_members; |
2393 | break; | |
1e5c6983 DW |
2394 | case 1: |
2395 | case 10: | |
36fd8ccc | 2396 | return map->num_members/2; |
1e5c6983 DW |
2397 | case 5: |
2398 | return map->num_members - 1; | |
2399 | default: | |
1ade5cc1 | 2400 | dprintf("unsupported raid level\n"); |
1e5c6983 DW |
2401 | return 0; |
2402 | } | |
2403 | } | |
2404 | ||
2405 | static __u32 parity_segment_depth(struct imsm_dev *dev) | |
2406 | { | |
238c0a71 | 2407 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
1e5c6983 DW |
2408 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); |
2409 | ||
2410 | switch(get_imsm_raid_level(map)) { | |
2411 | case 1: | |
2412 | case 10: | |
2413 | return chunk * map->num_domains; | |
2414 | case 5: | |
2415 | return chunk * map->num_members; | |
2416 | default: | |
2417 | return chunk; | |
2418 | } | |
2419 | } | |
2420 | ||
2421 | static __u32 map_migr_block(struct imsm_dev *dev, __u32 block) | |
2422 | { | |
238c0a71 | 2423 | struct imsm_map *map = get_imsm_map(dev, MAP_1); |
1e5c6983 DW |
2424 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); |
2425 | __u32 strip = block / chunk; | |
2426 | ||
2427 | switch (get_imsm_raid_level(map)) { | |
2428 | case 1: | |
2429 | case 10: { | |
2430 | __u32 vol_strip = (strip * map->num_domains) + 1; | |
2431 | __u32 vol_stripe = vol_strip / map->num_members; | |
2432 | ||
2433 | return vol_stripe * chunk + block % chunk; | |
2434 | } case 5: { | |
2435 | __u32 stripe = strip / (map->num_members - 1); | |
2436 | ||
2437 | return stripe * chunk + block % chunk; | |
2438 | } | |
2439 | default: | |
2440 | return 0; | |
2441 | } | |
2442 | } | |
2443 | ||
c47b0ff6 AK |
2444 | static __u64 blocks_per_migr_unit(struct intel_super *super, |
2445 | struct imsm_dev *dev) | |
1e5c6983 DW |
2446 | { |
2447 | /* calculate the conversion factor between per member 'blocks' | |
2448 | * (md/{resync,rebuild}_start) and imsm migration units, return | |
2449 | * 0 for the 'not migrating' and 'unsupported migration' cases | |
2450 | */ | |
2451 | if (!dev->vol.migr_state) | |
2452 | return 0; | |
2453 | ||
2454 | switch (migr_type(dev)) { | |
c47b0ff6 AK |
2455 | case MIGR_GEN_MIGR: { |
2456 | struct migr_record *migr_rec = super->migr_rec; | |
2457 | return __le32_to_cpu(migr_rec->blocks_per_unit); | |
2458 | } | |
1e5c6983 DW |
2459 | case MIGR_VERIFY: |
2460 | case MIGR_REPAIR: | |
2461 | case MIGR_INIT: { | |
238c0a71 | 2462 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
1e5c6983 DW |
2463 | __u32 stripes_per_unit; |
2464 | __u32 blocks_per_unit; | |
2465 | __u32 parity_depth; | |
2466 | __u32 migr_chunk; | |
2467 | __u32 block_map; | |
2468 | __u32 block_rel; | |
2469 | __u32 segment; | |
2470 | __u32 stripe; | |
2471 | __u8 disks; | |
2472 | ||
2473 | /* yes, this is really the translation of migr_units to | |
2474 | * per-member blocks in the 'resync' case | |
2475 | */ | |
2476 | stripes_per_unit = num_stripes_per_unit_resync(dev); | |
2477 | migr_chunk = migr_strip_blocks_resync(dev); | |
238c0a71 | 2478 | disks = imsm_num_data_members(dev, MAP_0); |
1e5c6983 | 2479 | blocks_per_unit = stripes_per_unit * migr_chunk * disks; |
7b1ab482 | 2480 | stripe = __le16_to_cpu(map->blocks_per_strip) * disks; |
1e5c6983 DW |
2481 | segment = blocks_per_unit / stripe; |
2482 | block_rel = blocks_per_unit - segment * stripe; | |
2483 | parity_depth = parity_segment_depth(dev); | |
2484 | block_map = map_migr_block(dev, block_rel); | |
2485 | return block_map + parity_depth * segment; | |
2486 | } | |
2487 | case MIGR_REBUILD: { | |
2488 | __u32 stripes_per_unit; | |
2489 | __u32 migr_chunk; | |
2490 | ||
2491 | stripes_per_unit = num_stripes_per_unit_rebuild(dev); | |
2492 | migr_chunk = migr_strip_blocks_rebuild(dev); | |
2493 | return migr_chunk * stripes_per_unit; | |
2494 | } | |
1e5c6983 DW |
2495 | case MIGR_STATE_CHANGE: |
2496 | default: | |
2497 | return 0; | |
2498 | } | |
2499 | } | |
2500 | ||
c2c087e6 DW |
2501 | static int imsm_level_to_layout(int level) |
2502 | { | |
2503 | switch (level) { | |
2504 | case 0: | |
2505 | case 1: | |
2506 | return 0; | |
2507 | case 5: | |
2508 | case 6: | |
a380c027 | 2509 | return ALGORITHM_LEFT_ASYMMETRIC; |
c2c087e6 | 2510 | case 10: |
c92a2527 | 2511 | return 0x102; |
c2c087e6 | 2512 | } |
a18a888e | 2513 | return UnSet; |
c2c087e6 DW |
2514 | } |
2515 | ||
8e59f3d8 AK |
2516 | /******************************************************************************* |
2517 | * Function: read_imsm_migr_rec | |
2518 | * Description: Function reads imsm migration record from last sector of disk | |
2519 | * Parameters: | |
2520 | * fd : disk descriptor | |
2521 | * super : metadata info | |
2522 | * Returns: | |
2523 | * 0 : success, | |
2524 | * -1 : fail | |
2525 | ******************************************************************************/ | |
2526 | static int read_imsm_migr_rec(int fd, struct intel_super *super) | |
2527 | { | |
2528 | int ret_val = -1; | |
de44e46f | 2529 | unsigned int sector_size = super->sector_size; |
8e59f3d8 AK |
2530 | unsigned long long dsize; |
2531 | ||
2532 | get_dev_size(fd, NULL, &dsize); | |
de44e46f PB |
2533 | if (lseek64(fd, dsize - (sector_size*MIGR_REC_SECTOR_POSITION), |
2534 | SEEK_SET) < 0) { | |
e7b84f9d N |
2535 | pr_err("Cannot seek to anchor block: %s\n", |
2536 | strerror(errno)); | |
8e59f3d8 AK |
2537 | goto out; |
2538 | } | |
de44e46f PB |
2539 | if (read(fd, super->migr_rec_buf, |
2540 | MIGR_REC_BUF_SECTORS*sector_size) != | |
2541 | MIGR_REC_BUF_SECTORS*sector_size) { | |
e7b84f9d N |
2542 | pr_err("Cannot read migr record block: %s\n", |
2543 | strerror(errno)); | |
8e59f3d8 AK |
2544 | goto out; |
2545 | } | |
2546 | ret_val = 0; | |
de44e46f PB |
2547 | if (sector_size == 4096) |
2548 | convert_from_4k_imsm_migr_rec(super); | |
8e59f3d8 AK |
2549 | |
2550 | out: | |
2551 | return ret_val; | |
2552 | } | |
2553 | ||
3136abe5 AK |
2554 | static struct imsm_dev *imsm_get_device_during_migration( |
2555 | struct intel_super *super) | |
2556 | { | |
2557 | ||
2558 | struct intel_dev *dv; | |
2559 | ||
2560 | for (dv = super->devlist; dv; dv = dv->next) { | |
2561 | if (is_gen_migration(dv->dev)) | |
2562 | return dv->dev; | |
2563 | } | |
2564 | return NULL; | |
2565 | } | |
2566 | ||
8e59f3d8 AK |
2567 | /******************************************************************************* |
2568 | * Function: load_imsm_migr_rec | |
2569 | * Description: Function reads imsm migration record (it is stored at the last | |
2570 | * sector of disk) | |
2571 | * Parameters: | |
2572 | * super : imsm internal array info | |
2573 | * info : general array info | |
2574 | * Returns: | |
2575 | * 0 : success | |
2576 | * -1 : fail | |
4c965cc9 | 2577 | * -2 : no migration in progress |
8e59f3d8 AK |
2578 | ******************************************************************************/ |
2579 | static int load_imsm_migr_rec(struct intel_super *super, struct mdinfo *info) | |
2580 | { | |
2581 | struct mdinfo *sd; | |
594dc1b8 | 2582 | struct dl *dl; |
8e59f3d8 AK |
2583 | char nm[30]; |
2584 | int retval = -1; | |
2585 | int fd = -1; | |
3136abe5 | 2586 | struct imsm_dev *dev; |
594dc1b8 | 2587 | struct imsm_map *map; |
b4ab44d8 | 2588 | int slot = -1; |
3136abe5 AK |
2589 | |
2590 | /* find map under migration */ | |
2591 | dev = imsm_get_device_during_migration(super); | |
2592 | /* nothing to load,no migration in progress? | |
2593 | */ | |
2594 | if (dev == NULL) | |
4c965cc9 | 2595 | return -2; |
8e59f3d8 AK |
2596 | |
2597 | if (info) { | |
2598 | for (sd = info->devs ; sd ; sd = sd->next) { | |
2599 | /* read only from one of the first two slots */ | |
12fe93e9 TM |
2600 | if ((sd->disk.raid_disk < 0) || |
2601 | (sd->disk.raid_disk > 1)) | |
8e59f3d8 | 2602 | continue; |
3136abe5 | 2603 | |
8e59f3d8 AK |
2604 | sprintf(nm, "%d:%d", sd->disk.major, sd->disk.minor); |
2605 | fd = dev_open(nm, O_RDONLY); | |
2606 | if (fd >= 0) | |
2607 | break; | |
2608 | } | |
2609 | } | |
2610 | if (fd < 0) { | |
12fe93e9 | 2611 | map = get_imsm_map(dev, MAP_0); |
8e59f3d8 | 2612 | for (dl = super->disks; dl; dl = dl->next) { |
3136abe5 AK |
2613 | /* skip spare and failed disks |
2614 | */ | |
2615 | if (dl->index < 0) | |
2616 | continue; | |
8e59f3d8 | 2617 | /* read only from one of the first two slots */ |
3136abe5 AK |
2618 | if (map) |
2619 | slot = get_imsm_disk_slot(map, dl->index); | |
089f9d79 | 2620 | if (map == NULL || slot > 1 || slot < 0) |
8e59f3d8 AK |
2621 | continue; |
2622 | sprintf(nm, "%d:%d", dl->major, dl->minor); | |
2623 | fd = dev_open(nm, O_RDONLY); | |
2624 | if (fd >= 0) | |
2625 | break; | |
2626 | } | |
2627 | } | |
2628 | if (fd < 0) | |
2629 | goto out; | |
2630 | retval = read_imsm_migr_rec(fd, super); | |
2631 | ||
2632 | out: | |
2633 | if (fd >= 0) | |
2634 | close(fd); | |
2635 | return retval; | |
2636 | } | |
2637 | ||
9e2d750d | 2638 | #ifndef MDASSEMBLE |
c17608ea AK |
2639 | /******************************************************************************* |
2640 | * function: imsm_create_metadata_checkpoint_update | |
2641 | * Description: It creates update for checkpoint change. | |
2642 | * Parameters: | |
2643 | * super : imsm internal array info | |
2644 | * u : pointer to prepared update | |
2645 | * Returns: | |
2646 | * Uptate length. | |
2647 | * If length is equal to 0, input pointer u contains no update | |
2648 | ******************************************************************************/ | |
2649 | static int imsm_create_metadata_checkpoint_update( | |
2650 | struct intel_super *super, | |
2651 | struct imsm_update_general_migration_checkpoint **u) | |
2652 | { | |
2653 | ||
2654 | int update_memory_size = 0; | |
2655 | ||
1ade5cc1 | 2656 | dprintf("(enter)\n"); |
c17608ea AK |
2657 | |
2658 | if (u == NULL) | |
2659 | return 0; | |
2660 | *u = NULL; | |
2661 | ||
2662 | /* size of all update data without anchor */ | |
2663 | update_memory_size = | |
2664 | sizeof(struct imsm_update_general_migration_checkpoint); | |
2665 | ||
503975b9 | 2666 | *u = xcalloc(1, update_memory_size); |
c17608ea | 2667 | if (*u == NULL) { |
1ade5cc1 | 2668 | dprintf("error: cannot get memory\n"); |
c17608ea AK |
2669 | return 0; |
2670 | } | |
2671 | (*u)->type = update_general_migration_checkpoint; | |
2672 | (*u)->curr_migr_unit = __le32_to_cpu(super->migr_rec->curr_migr_unit); | |
1ade5cc1 | 2673 | dprintf("prepared for %u\n", (*u)->curr_migr_unit); |
c17608ea AK |
2674 | |
2675 | return update_memory_size; | |
2676 | } | |
2677 | ||
c17608ea AK |
2678 | static void imsm_update_metadata_locally(struct supertype *st, |
2679 | void *buf, int len); | |
2680 | ||
687629c2 AK |
2681 | /******************************************************************************* |
2682 | * Function: write_imsm_migr_rec | |
2683 | * Description: Function writes imsm migration record | |
2684 | * (at the last sector of disk) | |
2685 | * Parameters: | |
2686 | * super : imsm internal array info | |
2687 | * Returns: | |
2688 | * 0 : success | |
2689 | * -1 : if fail | |
2690 | ******************************************************************************/ | |
2691 | static int write_imsm_migr_rec(struct supertype *st) | |
2692 | { | |
2693 | struct intel_super *super = st->sb; | |
de44e46f | 2694 | unsigned int sector_size = super->sector_size; |
687629c2 AK |
2695 | unsigned long long dsize; |
2696 | char nm[30]; | |
2697 | int fd = -1; | |
2698 | int retval = -1; | |
2699 | struct dl *sd; | |
c17608ea AK |
2700 | int len; |
2701 | struct imsm_update_general_migration_checkpoint *u; | |
3136abe5 | 2702 | struct imsm_dev *dev; |
594dc1b8 | 2703 | struct imsm_map *map; |
3136abe5 AK |
2704 | |
2705 | /* find map under migration */ | |
2706 | dev = imsm_get_device_during_migration(super); | |
2707 | /* if no migration, write buffer anyway to clear migr_record | |
2708 | * on disk based on first available device | |
2709 | */ | |
2710 | if (dev == NULL) | |
2711 | dev = get_imsm_dev(super, super->current_vol < 0 ? 0 : | |
2712 | super->current_vol); | |
2713 | ||
44bfe6df | 2714 | map = get_imsm_map(dev, MAP_0); |
687629c2 | 2715 | |
de44e46f PB |
2716 | if (sector_size == 4096) |
2717 | convert_to_4k_imsm_migr_rec(super); | |
687629c2 | 2718 | for (sd = super->disks ; sd ; sd = sd->next) { |
b4ab44d8 | 2719 | int slot = -1; |
3136abe5 AK |
2720 | |
2721 | /* skip failed and spare devices */ | |
2722 | if (sd->index < 0) | |
2723 | continue; | |
687629c2 | 2724 | /* write to 2 first slots only */ |
3136abe5 AK |
2725 | if (map) |
2726 | slot = get_imsm_disk_slot(map, sd->index); | |
089f9d79 | 2727 | if (map == NULL || slot > 1 || slot < 0) |
687629c2 | 2728 | continue; |
3136abe5 | 2729 | |
687629c2 AK |
2730 | sprintf(nm, "%d:%d", sd->major, sd->minor); |
2731 | fd = dev_open(nm, O_RDWR); | |
2732 | if (fd < 0) | |
2733 | continue; | |
2734 | get_dev_size(fd, NULL, &dsize); | |
de44e46f PB |
2735 | if (lseek64(fd, dsize - (MIGR_REC_SECTOR_POSITION*sector_size), |
2736 | SEEK_SET) < 0) { | |
e7b84f9d N |
2737 | pr_err("Cannot seek to anchor block: %s\n", |
2738 | strerror(errno)); | |
687629c2 AK |
2739 | goto out; |
2740 | } | |
de44e46f PB |
2741 | if (write(fd, super->migr_rec_buf, |
2742 | MIGR_REC_BUF_SECTORS*sector_size) != | |
2743 | MIGR_REC_BUF_SECTORS*sector_size) { | |
e7b84f9d N |
2744 | pr_err("Cannot write migr record block: %s\n", |
2745 | strerror(errno)); | |
687629c2 AK |
2746 | goto out; |
2747 | } | |
2748 | close(fd); | |
2749 | fd = -1; | |
2750 | } | |
de44e46f PB |
2751 | if (sector_size == 4096) |
2752 | convert_from_4k_imsm_migr_rec(super); | |
c17608ea AK |
2753 | /* update checkpoint information in metadata */ |
2754 | len = imsm_create_metadata_checkpoint_update(super, &u); | |
c17608ea AK |
2755 | if (len <= 0) { |
2756 | dprintf("imsm: Cannot prepare update\n"); | |
2757 | goto out; | |
2758 | } | |
2759 | /* update metadata locally */ | |
2760 | imsm_update_metadata_locally(st, u, len); | |
2761 | /* and possibly remotely */ | |
2762 | if (st->update_tail) { | |
2763 | append_metadata_update(st, u, len); | |
2764 | /* during reshape we do all work inside metadata handler | |
2765 | * manage_reshape(), so metadata update has to be triggered | |
2766 | * insida it | |
2767 | */ | |
2768 | flush_metadata_updates(st); | |
2769 | st->update_tail = &st->updates; | |
2770 | } else | |
2771 | free(u); | |
687629c2 AK |
2772 | |
2773 | retval = 0; | |
2774 | out: | |
2775 | if (fd >= 0) | |
2776 | close(fd); | |
2777 | return retval; | |
2778 | } | |
9e2d750d | 2779 | #endif /* MDASSEMBLE */ |
687629c2 | 2780 | |
e2962bfc AK |
2781 | /* spare/missing disks activations are not allowe when |
2782 | * array/container performs reshape operation, because | |
2783 | * all arrays in container works on the same disks set | |
2784 | */ | |
2785 | int imsm_reshape_blocks_arrays_changes(struct intel_super *super) | |
2786 | { | |
2787 | int rv = 0; | |
2788 | struct intel_dev *i_dev; | |
2789 | struct imsm_dev *dev; | |
2790 | ||
2791 | /* check whole container | |
2792 | */ | |
2793 | for (i_dev = super->devlist; i_dev; i_dev = i_dev->next) { | |
2794 | dev = i_dev->dev; | |
3ad25638 | 2795 | if (is_gen_migration(dev)) { |
e2962bfc AK |
2796 | /* No repair during any migration in container |
2797 | */ | |
2798 | rv = 1; | |
2799 | break; | |
2800 | } | |
2801 | } | |
2802 | return rv; | |
2803 | } | |
c41e00b2 AK |
2804 | static unsigned long long imsm_component_size_aligment_check(int level, |
2805 | int chunk_size, | |
f36a9ecd | 2806 | unsigned int sector_size, |
c41e00b2 AK |
2807 | unsigned long long component_size) |
2808 | { | |
2809 | unsigned int component_size_alligment; | |
2810 | ||
2811 | /* check component size aligment | |
2812 | */ | |
f36a9ecd | 2813 | component_size_alligment = component_size % (chunk_size/sector_size); |
c41e00b2 | 2814 | |
1ade5cc1 | 2815 | dprintf("(Level: %i, chunk_size = %i, component_size = %llu), component_size_alligment = %u\n", |
c41e00b2 AK |
2816 | level, chunk_size, component_size, |
2817 | component_size_alligment); | |
2818 | ||
2819 | if (component_size_alligment && (level != 1) && (level != UnSet)) { | |
2820 | dprintf("imsm: reported component size alligned from %llu ", | |
2821 | component_size); | |
2822 | component_size -= component_size_alligment; | |
1ade5cc1 | 2823 | dprintf_cont("to %llu (%i).\n", |
c41e00b2 AK |
2824 | component_size, component_size_alligment); |
2825 | } | |
2826 | ||
2827 | return component_size; | |
2828 | } | |
e2962bfc | 2829 | |
a5d85af7 | 2830 | static void getinfo_super_imsm_volume(struct supertype *st, struct mdinfo *info, char *dmap) |
bf5a934a DW |
2831 | { |
2832 | struct intel_super *super = st->sb; | |
c47b0ff6 | 2833 | struct migr_record *migr_rec = super->migr_rec; |
949c47a0 | 2834 | struct imsm_dev *dev = get_imsm_dev(super, super->current_vol); |
238c0a71 AK |
2835 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
2836 | struct imsm_map *prev_map = get_imsm_map(dev, MAP_1); | |
b335e593 | 2837 | struct imsm_map *map_to_analyse = map; |
efb30e7f | 2838 | struct dl *dl; |
a5d85af7 | 2839 | int map_disks = info->array.raid_disks; |
bf5a934a | 2840 | |
95eeceeb | 2841 | memset(info, 0, sizeof(*info)); |
b335e593 AK |
2842 | if (prev_map) |
2843 | map_to_analyse = prev_map; | |
2844 | ||
ca0748fa | 2845 | dl = super->current_disk; |
9894ec0d | 2846 | |
bf5a934a | 2847 | info->container_member = super->current_vol; |
cd0430a1 | 2848 | info->array.raid_disks = map->num_members; |
b335e593 | 2849 | info->array.level = get_imsm_raid_level(map_to_analyse); |
bf5a934a DW |
2850 | info->array.layout = imsm_level_to_layout(info->array.level); |
2851 | info->array.md_minor = -1; | |
2852 | info->array.ctime = 0; | |
2853 | info->array.utime = 0; | |
b335e593 AK |
2854 | info->array.chunk_size = |
2855 | __le16_to_cpu(map_to_analyse->blocks_per_strip) << 9; | |
301406c9 | 2856 | info->array.state = !dev->vol.dirty; |
da9b4a62 DW |
2857 | info->custom_array_size = __le32_to_cpu(dev->size_high); |
2858 | info->custom_array_size <<= 32; | |
2859 | info->custom_array_size |= __le32_to_cpu(dev->size_low); | |
3ad25638 AK |
2860 | info->recovery_blocked = imsm_reshape_blocks_arrays_changes(st->sb); |
2861 | ||
3f510843 | 2862 | if (is_gen_migration(dev)) { |
3f83228a | 2863 | info->reshape_active = 1; |
b335e593 AK |
2864 | info->new_level = get_imsm_raid_level(map); |
2865 | info->new_layout = imsm_level_to_layout(info->new_level); | |
2866 | info->new_chunk = __le16_to_cpu(map->blocks_per_strip) << 9; | |
3f83228a | 2867 | info->delta_disks = map->num_members - prev_map->num_members; |
493f5dd6 N |
2868 | if (info->delta_disks) { |
2869 | /* this needs to be applied to every array | |
2870 | * in the container. | |
2871 | */ | |
81219e70 | 2872 | info->reshape_active = CONTAINER_RESHAPE; |
493f5dd6 | 2873 | } |
3f83228a N |
2874 | /* We shape information that we give to md might have to be |
2875 | * modify to cope with md's requirement for reshaping arrays. | |
2876 | * For example, when reshaping a RAID0, md requires it to be | |
2877 | * presented as a degraded RAID4. | |
2878 | * Also if a RAID0 is migrating to a RAID5 we need to specify | |
2879 | * the array as already being RAID5, but the 'before' layout | |
2880 | * is a RAID4-like layout. | |
2881 | */ | |
2882 | switch (info->array.level) { | |
2883 | case 0: | |
2884 | switch(info->new_level) { | |
2885 | case 0: | |
2886 | /* conversion is happening as RAID4 */ | |
2887 | info->array.level = 4; | |
2888 | info->array.raid_disks += 1; | |
2889 | break; | |
2890 | case 5: | |
2891 | /* conversion is happening as RAID5 */ | |
2892 | info->array.level = 5; | |
2893 | info->array.layout = ALGORITHM_PARITY_N; | |
3f83228a N |
2894 | info->delta_disks -= 1; |
2895 | break; | |
2896 | default: | |
2897 | /* FIXME error message */ | |
2898 | info->array.level = UnSet; | |
2899 | break; | |
2900 | } | |
2901 | break; | |
2902 | } | |
b335e593 AK |
2903 | } else { |
2904 | info->new_level = UnSet; | |
2905 | info->new_layout = UnSet; | |
2906 | info->new_chunk = info->array.chunk_size; | |
3f83228a | 2907 | info->delta_disks = 0; |
b335e593 | 2908 | } |
ca0748fa | 2909 | |
efb30e7f DW |
2910 | if (dl) { |
2911 | info->disk.major = dl->major; | |
2912 | info->disk.minor = dl->minor; | |
ca0748fa | 2913 | info->disk.number = dl->index; |
656b6b5a N |
2914 | info->disk.raid_disk = get_imsm_disk_slot(map_to_analyse, |
2915 | dl->index); | |
efb30e7f | 2916 | } |
bf5a934a | 2917 | |
5551b113 CA |
2918 | info->data_offset = pba_of_lba0(map_to_analyse); |
2919 | info->component_size = blocks_per_member(map_to_analyse); | |
139dae11 | 2920 | |
c41e00b2 AK |
2921 | info->component_size = imsm_component_size_aligment_check( |
2922 | info->array.level, | |
2923 | info->array.chunk_size, | |
f36a9ecd | 2924 | super->sector_size, |
c41e00b2 | 2925 | info->component_size); |
139dae11 | 2926 | |
301406c9 | 2927 | memset(info->uuid, 0, sizeof(info->uuid)); |
921d9e16 | 2928 | info->recovery_start = MaxSector; |
bf5a934a | 2929 | |
d2e6d5d6 | 2930 | info->reshape_progress = 0; |
b6796ce1 | 2931 | info->resync_start = MaxSector; |
b9172665 AK |
2932 | if ((map_to_analyse->map_state == IMSM_T_STATE_UNINITIALIZED || |
2933 | dev->vol.dirty) && | |
2934 | imsm_reshape_blocks_arrays_changes(super) == 0) { | |
301406c9 | 2935 | info->resync_start = 0; |
b6796ce1 AK |
2936 | } |
2937 | if (dev->vol.migr_state) { | |
1e5c6983 DW |
2938 | switch (migr_type(dev)) { |
2939 | case MIGR_REPAIR: | |
2940 | case MIGR_INIT: { | |
c47b0ff6 AK |
2941 | __u64 blocks_per_unit = blocks_per_migr_unit(super, |
2942 | dev); | |
1e5c6983 DW |
2943 | __u64 units = __le32_to_cpu(dev->vol.curr_migr_unit); |
2944 | ||
2945 | info->resync_start = blocks_per_unit * units; | |
2946 | break; | |
2947 | } | |
d2e6d5d6 | 2948 | case MIGR_GEN_MIGR: { |
c47b0ff6 AK |
2949 | __u64 blocks_per_unit = blocks_per_migr_unit(super, |
2950 | dev); | |
2951 | __u64 units = __le32_to_cpu(migr_rec->curr_migr_unit); | |
04fa9523 AK |
2952 | unsigned long long array_blocks; |
2953 | int used_disks; | |
d2e6d5d6 | 2954 | |
befb629b AK |
2955 | if (__le32_to_cpu(migr_rec->ascending_migr) && |
2956 | (units < | |
2957 | (__le32_to_cpu(migr_rec->num_migr_units)-1)) && | |
2958 | (super->migr_rec->rec_status == | |
2959 | __cpu_to_le32(UNIT_SRC_IN_CP_AREA))) | |
2960 | units++; | |
2961 | ||
d2e6d5d6 | 2962 | info->reshape_progress = blocks_per_unit * units; |
6289d1e0 | 2963 | |
7a862a02 | 2964 | dprintf("IMSM: General Migration checkpoint : %llu (%llu) -> read reshape progress : %llu\n", |
19986c72 MB |
2965 | (unsigned long long)units, |
2966 | (unsigned long long)blocks_per_unit, | |
2967 | info->reshape_progress); | |
75156c46 | 2968 | |
238c0a71 | 2969 | used_disks = imsm_num_data_members(dev, MAP_1); |
75156c46 | 2970 | if (used_disks > 0) { |
5551b113 | 2971 | array_blocks = blocks_per_member(map) * |
75156c46 AK |
2972 | used_disks; |
2973 | /* round array size down to closest MB | |
2974 | */ | |
2975 | info->custom_array_size = (array_blocks | |
2976 | >> SECT_PER_MB_SHIFT) | |
2977 | << SECT_PER_MB_SHIFT; | |
2978 | } | |
d2e6d5d6 | 2979 | } |
1e5c6983 DW |
2980 | case MIGR_VERIFY: |
2981 | /* we could emulate the checkpointing of | |
2982 | * 'sync_action=check' migrations, but for now | |
2983 | * we just immediately complete them | |
2984 | */ | |
2985 | case MIGR_REBUILD: | |
2986 | /* this is handled by container_content_imsm() */ | |
1e5c6983 DW |
2987 | case MIGR_STATE_CHANGE: |
2988 | /* FIXME handle other migrations */ | |
2989 | default: | |
2990 | /* we are not dirty, so... */ | |
2991 | info->resync_start = MaxSector; | |
2992 | } | |
b6796ce1 | 2993 | } |
301406c9 DW |
2994 | |
2995 | strncpy(info->name, (char *) dev->volume, MAX_RAID_SERIAL_LEN); | |
2996 | info->name[MAX_RAID_SERIAL_LEN] = 0; | |
bf5a934a | 2997 | |
f35f2525 N |
2998 | info->array.major_version = -1; |
2999 | info->array.minor_version = -2; | |
4dd2df09 | 3000 | sprintf(info->text_version, "/%s/%d", st->container_devnm, info->container_member); |
a67dd8cc | 3001 | info->safe_mode_delay = 4000; /* 4 secs like the Matrix driver */ |
51006d85 | 3002 | uuid_from_super_imsm(st, info->uuid); |
a5d85af7 N |
3003 | |
3004 | if (dmap) { | |
3005 | int i, j; | |
3006 | for (i=0; i<map_disks; i++) { | |
3007 | dmap[i] = 0; | |
3008 | if (i < info->array.raid_disks) { | |
3009 | struct imsm_disk *dsk; | |
238c0a71 | 3010 | j = get_imsm_disk_idx(dev, i, MAP_X); |
a5d85af7 N |
3011 | dsk = get_imsm_disk(super, j); |
3012 | if (dsk && (dsk->status & CONFIGURED_DISK)) | |
3013 | dmap[i] = 1; | |
3014 | } | |
3015 | } | |
3016 | } | |
81ac8b4d | 3017 | } |
bf5a934a | 3018 | |
3b451610 AK |
3019 | static __u8 imsm_check_degraded(struct intel_super *super, struct imsm_dev *dev, |
3020 | int failed, int look_in_map); | |
3021 | ||
3022 | static int imsm_count_failed(struct intel_super *super, struct imsm_dev *dev, | |
3023 | int look_in_map); | |
3024 | ||
b4ab44d8 | 3025 | #ifndef MDASSEMBLE |
3b451610 AK |
3026 | static void manage_second_map(struct intel_super *super, struct imsm_dev *dev) |
3027 | { | |
3028 | if (is_gen_migration(dev)) { | |
3029 | int failed; | |
3030 | __u8 map_state; | |
3031 | struct imsm_map *map2 = get_imsm_map(dev, MAP_1); | |
3032 | ||
3033 | failed = imsm_count_failed(super, dev, MAP_1); | |
238c0a71 | 3034 | map_state = imsm_check_degraded(super, dev, failed, MAP_1); |
3b451610 AK |
3035 | if (map2->map_state != map_state) { |
3036 | map2->map_state = map_state; | |
3037 | super->updates_pending++; | |
3038 | } | |
3039 | } | |
3040 | } | |
b4ab44d8 | 3041 | #endif |
97b4d0e9 DW |
3042 | |
3043 | static struct imsm_disk *get_imsm_missing(struct intel_super *super, __u8 index) | |
3044 | { | |
3045 | struct dl *d; | |
3046 | ||
3047 | for (d = super->missing; d; d = d->next) | |
3048 | if (d->index == index) | |
3049 | return &d->disk; | |
3050 | return NULL; | |
3051 | } | |
3052 | ||
a5d85af7 | 3053 | static void getinfo_super_imsm(struct supertype *st, struct mdinfo *info, char *map) |
4f5bc454 DW |
3054 | { |
3055 | struct intel_super *super = st->sb; | |
4f5bc454 | 3056 | struct imsm_disk *disk; |
a5d85af7 | 3057 | int map_disks = info->array.raid_disks; |
ab3cb6b3 N |
3058 | int max_enough = -1; |
3059 | int i; | |
3060 | struct imsm_super *mpb; | |
4f5bc454 | 3061 | |
bf5a934a | 3062 | if (super->current_vol >= 0) { |
a5d85af7 | 3063 | getinfo_super_imsm_volume(st, info, map); |
bf5a934a DW |
3064 | return; |
3065 | } | |
95eeceeb | 3066 | memset(info, 0, sizeof(*info)); |
d23fe947 DW |
3067 | |
3068 | /* Set raid_disks to zero so that Assemble will always pull in valid | |
3069 | * spares | |
3070 | */ | |
3071 | info->array.raid_disks = 0; | |
cdddbdbc DW |
3072 | info->array.level = LEVEL_CONTAINER; |
3073 | info->array.layout = 0; | |
3074 | info->array.md_minor = -1; | |
1011e834 | 3075 | info->array.ctime = 0; /* N/A for imsm */ |
cdddbdbc DW |
3076 | info->array.utime = 0; |
3077 | info->array.chunk_size = 0; | |
3078 | ||
3079 | info->disk.major = 0; | |
3080 | info->disk.minor = 0; | |
cdddbdbc | 3081 | info->disk.raid_disk = -1; |
c2c087e6 | 3082 | info->reshape_active = 0; |
f35f2525 N |
3083 | info->array.major_version = -1; |
3084 | info->array.minor_version = -2; | |
c2c087e6 | 3085 | strcpy(info->text_version, "imsm"); |
a67dd8cc | 3086 | info->safe_mode_delay = 0; |
c2c087e6 DW |
3087 | info->disk.number = -1; |
3088 | info->disk.state = 0; | |
c5afc314 | 3089 | info->name[0] = 0; |
921d9e16 | 3090 | info->recovery_start = MaxSector; |
3ad25638 | 3091 | info->recovery_blocked = imsm_reshape_blocks_arrays_changes(st->sb); |
c2c087e6 | 3092 | |
97b4d0e9 | 3093 | /* do we have the all the insync disks that we expect? */ |
ab3cb6b3 | 3094 | mpb = super->anchor; |
97b4d0e9 | 3095 | |
ab3cb6b3 N |
3096 | for (i = 0; i < mpb->num_raid_devs; i++) { |
3097 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
3098 | int failed, enough, j, missing = 0; | |
3099 | struct imsm_map *map; | |
3100 | __u8 state; | |
97b4d0e9 | 3101 | |
3b451610 AK |
3102 | failed = imsm_count_failed(super, dev, MAP_0); |
3103 | state = imsm_check_degraded(super, dev, failed, MAP_0); | |
238c0a71 | 3104 | map = get_imsm_map(dev, MAP_0); |
ab3cb6b3 N |
3105 | |
3106 | /* any newly missing disks? | |
3107 | * (catches single-degraded vs double-degraded) | |
3108 | */ | |
3109 | for (j = 0; j < map->num_members; j++) { | |
238c0a71 | 3110 | __u32 ord = get_imsm_ord_tbl_ent(dev, j, MAP_0); |
ab3cb6b3 N |
3111 | __u32 idx = ord_to_idx(ord); |
3112 | ||
3113 | if (!(ord & IMSM_ORD_REBUILD) && | |
3114 | get_imsm_missing(super, idx)) { | |
3115 | missing = 1; | |
3116 | break; | |
3117 | } | |
97b4d0e9 | 3118 | } |
ab3cb6b3 N |
3119 | |
3120 | if (state == IMSM_T_STATE_FAILED) | |
3121 | enough = -1; | |
3122 | else if (state == IMSM_T_STATE_DEGRADED && | |
3123 | (state != map->map_state || missing)) | |
3124 | enough = 0; | |
3125 | else /* we're normal, or already degraded */ | |
3126 | enough = 1; | |
d2bde6d3 AK |
3127 | if (is_gen_migration(dev) && missing) { |
3128 | /* during general migration we need all disks | |
3129 | * that process is running on. | |
3130 | * No new missing disk is allowed. | |
3131 | */ | |
3132 | max_enough = -1; | |
3133 | enough = -1; | |
3134 | /* no more checks necessary | |
3135 | */ | |
3136 | break; | |
3137 | } | |
ab3cb6b3 N |
3138 | /* in the missing/failed disk case check to see |
3139 | * if at least one array is runnable | |
3140 | */ | |
3141 | max_enough = max(max_enough, enough); | |
3142 | } | |
1ade5cc1 | 3143 | dprintf("enough: %d\n", max_enough); |
ab3cb6b3 | 3144 | info->container_enough = max_enough; |
97b4d0e9 | 3145 | |
4a04ec6c | 3146 | if (super->disks) { |
14e8215b DW |
3147 | __u32 reserved = imsm_reserved_sectors(super, super->disks); |
3148 | ||
b9f594fe | 3149 | disk = &super->disks->disk; |
5551b113 | 3150 | info->data_offset = total_blocks(&super->disks->disk) - reserved; |
14e8215b | 3151 | info->component_size = reserved; |
25ed7e59 | 3152 | info->disk.state = is_configured(disk) ? (1 << MD_DISK_ACTIVE) : 0; |
df474657 DW |
3153 | /* we don't change info->disk.raid_disk here because |
3154 | * this state will be finalized in mdmon after we have | |
3155 | * found the 'most fresh' version of the metadata | |
3156 | */ | |
25ed7e59 DW |
3157 | info->disk.state |= is_failed(disk) ? (1 << MD_DISK_FAULTY) : 0; |
3158 | info->disk.state |= is_spare(disk) ? 0 : (1 << MD_DISK_SYNC); | |
cdddbdbc | 3159 | } |
a575e2a7 DW |
3160 | |
3161 | /* only call uuid_from_super_imsm when this disk is part of a populated container, | |
3162 | * ->compare_super may have updated the 'num_raid_devs' field for spares | |
3163 | */ | |
3164 | if (info->disk.state & (1 << MD_DISK_SYNC) || super->anchor->num_raid_devs) | |
36ba7d48 | 3165 | uuid_from_super_imsm(st, info->uuid); |
22e263f6 AC |
3166 | else |
3167 | memcpy(info->uuid, uuid_zero, sizeof(uuid_zero)); | |
a5d85af7 N |
3168 | |
3169 | /* I don't know how to compute 'map' on imsm, so use safe default */ | |
3170 | if (map) { | |
3171 | int i; | |
3172 | for (i = 0; i < map_disks; i++) | |
3173 | map[i] = 1; | |
3174 | } | |
3175 | ||
cdddbdbc DW |
3176 | } |
3177 | ||
5c4cd5da AC |
3178 | /* allocates memory and fills disk in mdinfo structure |
3179 | * for each disk in array */ | |
3180 | struct mdinfo *getinfo_super_disks_imsm(struct supertype *st) | |
3181 | { | |
594dc1b8 | 3182 | struct mdinfo *mddev; |
5c4cd5da AC |
3183 | struct intel_super *super = st->sb; |
3184 | struct imsm_disk *disk; | |
3185 | int count = 0; | |
3186 | struct dl *dl; | |
3187 | if (!super || !super->disks) | |
3188 | return NULL; | |
3189 | dl = super->disks; | |
503975b9 | 3190 | mddev = xcalloc(1, sizeof(*mddev)); |
5c4cd5da AC |
3191 | while (dl) { |
3192 | struct mdinfo *tmp; | |
3193 | disk = &dl->disk; | |
503975b9 | 3194 | tmp = xcalloc(1, sizeof(*tmp)); |
5c4cd5da AC |
3195 | if (mddev->devs) |
3196 | tmp->next = mddev->devs; | |
3197 | mddev->devs = tmp; | |
3198 | tmp->disk.number = count++; | |
3199 | tmp->disk.major = dl->major; | |
3200 | tmp->disk.minor = dl->minor; | |
3201 | tmp->disk.state = is_configured(disk) ? | |
3202 | (1 << MD_DISK_ACTIVE) : 0; | |
3203 | tmp->disk.state |= is_failed(disk) ? (1 << MD_DISK_FAULTY) : 0; | |
3204 | tmp->disk.state |= is_spare(disk) ? 0 : (1 << MD_DISK_SYNC); | |
3205 | tmp->disk.raid_disk = -1; | |
3206 | dl = dl->next; | |
3207 | } | |
3208 | return mddev; | |
3209 | } | |
3210 | ||
cdddbdbc DW |
3211 | static int update_super_imsm(struct supertype *st, struct mdinfo *info, |
3212 | char *update, char *devname, int verbose, | |
3213 | int uuid_set, char *homehost) | |
3214 | { | |
f352c545 DW |
3215 | /* For 'assemble' and 'force' we need to return non-zero if any |
3216 | * change was made. For others, the return value is ignored. | |
3217 | * Update options are: | |
3218 | * force-one : This device looks a bit old but needs to be included, | |
3219 | * update age info appropriately. | |
3220 | * assemble: clear any 'faulty' flag to allow this device to | |
3221 | * be assembled. | |
3222 | * force-array: Array is degraded but being forced, mark it clean | |
3223 | * if that will be needed to assemble it. | |
3224 | * | |
3225 | * newdev: not used ???? | |
3226 | * grow: Array has gained a new device - this is currently for | |
3227 | * linear only | |
3228 | * resync: mark as dirty so a resync will happen. | |
3229 | * name: update the name - preserving the homehost | |
6e46bf34 | 3230 | * uuid: Change the uuid of the array to match watch is given |
f352c545 DW |
3231 | * |
3232 | * Following are not relevant for this imsm: | |
3233 | * sparc2.2 : update from old dodgey metadata | |
3234 | * super-minor: change the preferred_minor number | |
3235 | * summaries: update redundant counters. | |
f352c545 DW |
3236 | * homehost: update the recorded homehost |
3237 | * _reshape_progress: record new reshape_progress position. | |
3238 | */ | |
6e46bf34 DW |
3239 | int rv = 1; |
3240 | struct intel_super *super = st->sb; | |
3241 | struct imsm_super *mpb; | |
f352c545 | 3242 | |
6e46bf34 DW |
3243 | /* we can only update container info */ |
3244 | if (!super || super->current_vol >= 0 || !super->anchor) | |
3245 | return 1; | |
3246 | ||
3247 | mpb = super->anchor; | |
3248 | ||
81a5b4f5 N |
3249 | if (strcmp(update, "uuid") == 0) { |
3250 | /* We take this to mean that the family_num should be updated. | |
3251 | * However that is much smaller than the uuid so we cannot really | |
3252 | * allow an explicit uuid to be given. And it is hard to reliably | |
3253 | * know if one was. | |
3254 | * So if !uuid_set we know the current uuid is random and just used | |
3255 | * the first 'int' and copy it to the other 3 positions. | |
3256 | * Otherwise we require the 4 'int's to be the same as would be the | |
3257 | * case if we are using a random uuid. So an explicit uuid will be | |
3258 | * accepted as long as all for ints are the same... which shouldn't hurt | |
6e46bf34 | 3259 | */ |
81a5b4f5 N |
3260 | if (!uuid_set) { |
3261 | info->uuid[1] = info->uuid[2] = info->uuid[3] = info->uuid[0]; | |
6e46bf34 | 3262 | rv = 0; |
81a5b4f5 N |
3263 | } else { |
3264 | if (info->uuid[0] != info->uuid[1] || | |
3265 | info->uuid[1] != info->uuid[2] || | |
3266 | info->uuid[2] != info->uuid[3]) | |
3267 | rv = -1; | |
3268 | else | |
3269 | rv = 0; | |
6e46bf34 | 3270 | } |
81a5b4f5 N |
3271 | if (rv == 0) |
3272 | mpb->orig_family_num = info->uuid[0]; | |
6e46bf34 DW |
3273 | } else if (strcmp(update, "assemble") == 0) |
3274 | rv = 0; | |
3275 | else | |
1e2b2765 | 3276 | rv = -1; |
f352c545 | 3277 | |
6e46bf34 DW |
3278 | /* successful update? recompute checksum */ |
3279 | if (rv == 0) | |
3280 | mpb->check_sum = __le32_to_cpu(__gen_imsm_checksum(mpb)); | |
f352c545 DW |
3281 | |
3282 | return rv; | |
cdddbdbc DW |
3283 | } |
3284 | ||
c2c087e6 | 3285 | static size_t disks_to_mpb_size(int disks) |
cdddbdbc | 3286 | { |
c2c087e6 | 3287 | size_t size; |
cdddbdbc | 3288 | |
c2c087e6 DW |
3289 | size = sizeof(struct imsm_super); |
3290 | size += (disks - 1) * sizeof(struct imsm_disk); | |
3291 | size += 2 * sizeof(struct imsm_dev); | |
3292 | /* up to 2 maps per raid device (-2 for imsm_maps in imsm_dev */ | |
3293 | size += (4 - 2) * sizeof(struct imsm_map); | |
3294 | /* 4 possible disk_ord_tbl's */ | |
3295 | size += 4 * (disks - 1) * sizeof(__u32); | |
3296 | ||
3297 | return size; | |
3298 | } | |
3299 | ||
387fcd59 N |
3300 | static __u64 avail_size_imsm(struct supertype *st, __u64 devsize, |
3301 | unsigned long long data_offset) | |
c2c087e6 DW |
3302 | { |
3303 | if (devsize < (MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS)) | |
3304 | return 0; | |
3305 | ||
3306 | return devsize - (MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS); | |
cdddbdbc DW |
3307 | } |
3308 | ||
ba2de7ba DW |
3309 | static void free_devlist(struct intel_super *super) |
3310 | { | |
3311 | struct intel_dev *dv; | |
3312 | ||
3313 | while (super->devlist) { | |
3314 | dv = super->devlist->next; | |
3315 | free(super->devlist->dev); | |
3316 | free(super->devlist); | |
3317 | super->devlist = dv; | |
3318 | } | |
3319 | } | |
3320 | ||
3321 | static void imsm_copy_dev(struct imsm_dev *dest, struct imsm_dev *src) | |
3322 | { | |
3323 | memcpy(dest, src, sizeof_imsm_dev(src, 0)); | |
3324 | } | |
3325 | ||
cdddbdbc DW |
3326 | static int compare_super_imsm(struct supertype *st, struct supertype *tst) |
3327 | { | |
3328 | /* | |
3329 | * return: | |
3330 | * 0 same, or first was empty, and second was copied | |
3331 | * 1 second had wrong number | |
3332 | * 2 wrong uuid | |
3333 | * 3 wrong other info | |
3334 | */ | |
3335 | struct intel_super *first = st->sb; | |
3336 | struct intel_super *sec = tst->sb; | |
3337 | ||
5d500228 N |
3338 | if (!first) { |
3339 | st->sb = tst->sb; | |
3340 | tst->sb = NULL; | |
3341 | return 0; | |
3342 | } | |
8603ea6f LM |
3343 | /* in platform dependent environment test if the disks |
3344 | * use the same Intel hba | |
cb8f6859 | 3345 | * If not on Intel hba at all, allow anything. |
8603ea6f | 3346 | */ |
6b781d33 AP |
3347 | if (!check_env("IMSM_NO_PLATFORM") && first->hba && sec->hba) { |
3348 | if (first->hba->type != sec->hba->type) { | |
8603ea6f | 3349 | fprintf(stderr, |
6b781d33 AP |
3350 | "HBAs of devices do not match %s != %s\n", |
3351 | get_sys_dev_type(first->hba->type), | |
3352 | get_sys_dev_type(sec->hba->type)); | |
3353 | return 3; | |
3354 | } | |
3355 | if (first->orom != sec->orom) { | |
3356 | fprintf(stderr, | |
3357 | "HBAs of devices do not match %s != %s\n", | |
3358 | first->hba->pci_id, sec->hba->pci_id); | |
8603ea6f LM |
3359 | return 3; |
3360 | } | |
3361 | } | |
cdddbdbc | 3362 | |
d23fe947 DW |
3363 | /* if an anchor does not have num_raid_devs set then it is a free |
3364 | * floating spare | |
3365 | */ | |
3366 | if (first->anchor->num_raid_devs > 0 && | |
3367 | sec->anchor->num_raid_devs > 0) { | |
a2b97981 DW |
3368 | /* Determine if these disks might ever have been |
3369 | * related. Further disambiguation can only take place | |
3370 | * in load_super_imsm_all | |
3371 | */ | |
3372 | __u32 first_family = first->anchor->orig_family_num; | |
3373 | __u32 sec_family = sec->anchor->orig_family_num; | |
3374 | ||
f796af5d DW |
3375 | if (memcmp(first->anchor->sig, sec->anchor->sig, |
3376 | MAX_SIGNATURE_LENGTH) != 0) | |
3377 | return 3; | |
3378 | ||
a2b97981 DW |
3379 | if (first_family == 0) |
3380 | first_family = first->anchor->family_num; | |
3381 | if (sec_family == 0) | |
3382 | sec_family = sec->anchor->family_num; | |
3383 | ||
3384 | if (first_family != sec_family) | |
d23fe947 | 3385 | return 3; |
f796af5d | 3386 | |
d23fe947 | 3387 | } |
cdddbdbc | 3388 | |
3e372e5a DW |
3389 | /* if 'first' is a spare promote it to a populated mpb with sec's |
3390 | * family number | |
3391 | */ | |
3392 | if (first->anchor->num_raid_devs == 0 && | |
3393 | sec->anchor->num_raid_devs > 0) { | |
78d30f94 | 3394 | int i; |
ba2de7ba DW |
3395 | struct intel_dev *dv; |
3396 | struct imsm_dev *dev; | |
78d30f94 DW |
3397 | |
3398 | /* we need to copy raid device info from sec if an allocation | |
3399 | * fails here we don't associate the spare | |
3400 | */ | |
3401 | for (i = 0; i < sec->anchor->num_raid_devs; i++) { | |
503975b9 N |
3402 | dv = xmalloc(sizeof(*dv)); |
3403 | dev = xmalloc(sizeof_imsm_dev(get_imsm_dev(sec, i), 1)); | |
ba2de7ba DW |
3404 | dv->dev = dev; |
3405 | dv->index = i; | |
3406 | dv->next = first->devlist; | |
3407 | first->devlist = dv; | |
78d30f94 | 3408 | } |
709743c5 | 3409 | if (i < sec->anchor->num_raid_devs) { |
ba2de7ba DW |
3410 | /* allocation failure */ |
3411 | free_devlist(first); | |
e12b3daa | 3412 | pr_err("imsm: failed to associate spare\n"); |
ba2de7ba | 3413 | return 3; |
78d30f94 | 3414 | } |
3e372e5a | 3415 | first->anchor->num_raid_devs = sec->anchor->num_raid_devs; |
148acb7b | 3416 | first->anchor->orig_family_num = sec->anchor->orig_family_num; |
3e372e5a | 3417 | first->anchor->family_num = sec->anchor->family_num; |
ac6449be | 3418 | memcpy(first->anchor->sig, sec->anchor->sig, MAX_SIGNATURE_LENGTH); |
709743c5 DW |
3419 | for (i = 0; i < sec->anchor->num_raid_devs; i++) |
3420 | imsm_copy_dev(get_imsm_dev(first, i), get_imsm_dev(sec, i)); | |
3e372e5a DW |
3421 | } |
3422 | ||
cdddbdbc DW |
3423 | return 0; |
3424 | } | |
3425 | ||
0030e8d6 DW |
3426 | static void fd2devname(int fd, char *name) |
3427 | { | |
3428 | struct stat st; | |
3429 | char path[256]; | |
33a6535d | 3430 | char dname[PATH_MAX]; |
0030e8d6 DW |
3431 | char *nm; |
3432 | int rv; | |
3433 | ||
3434 | name[0] = '\0'; | |
3435 | if (fstat(fd, &st) != 0) | |
3436 | return; | |
3437 | sprintf(path, "/sys/dev/block/%d:%d", | |
3438 | major(st.st_rdev), minor(st.st_rdev)); | |
3439 | ||
9cf014ec | 3440 | rv = readlink(path, dname, sizeof(dname)-1); |
0030e8d6 DW |
3441 | if (rv <= 0) |
3442 | return; | |
9587c373 | 3443 | |
0030e8d6 DW |
3444 | dname[rv] = '\0'; |
3445 | nm = strrchr(dname, '/'); | |
7897de29 JS |
3446 | if (nm) { |
3447 | nm++; | |
3448 | snprintf(name, MAX_RAID_SERIAL_LEN, "/dev/%s", nm); | |
3449 | } | |
0030e8d6 DW |
3450 | } |
3451 | ||
21e9380b AP |
3452 | static int nvme_get_serial(int fd, void *buf, size_t buf_len) |
3453 | { | |
3454 | char path[60]; | |
3455 | char *name = fd2kname(fd); | |
3456 | ||
3457 | if (!name) | |
3458 | return 1; | |
3459 | ||
3460 | if (strncmp(name, "nvme", 4) != 0) | |
3461 | return 1; | |
3462 | ||
3463 | snprintf(path, sizeof(path) - 1, "/sys/block/%s/device/serial", name); | |
3464 | ||
3465 | return load_sys(path, buf, buf_len); | |
3466 | } | |
3467 | ||
cdddbdbc DW |
3468 | extern int scsi_get_serial(int fd, void *buf, size_t buf_len); |
3469 | ||
3470 | static int imsm_read_serial(int fd, char *devname, | |
3471 | __u8 serial[MAX_RAID_SERIAL_LEN]) | |
3472 | { | |
21e9380b | 3473 | char buf[50]; |
cdddbdbc | 3474 | int rv; |
1f24f035 | 3475 | int len; |
316e2bf4 DW |
3476 | char *dest; |
3477 | char *src; | |
21e9380b AP |
3478 | unsigned int i; |
3479 | ||
3480 | memset(buf, 0, sizeof(buf)); | |
cdddbdbc | 3481 | |
21e9380b | 3482 | rv = nvme_get_serial(fd, buf, sizeof(buf)); |
cdddbdbc | 3483 | |
21e9380b AP |
3484 | if (rv) |
3485 | rv = scsi_get_serial(fd, buf, sizeof(buf)); | |
f9ba0ff1 | 3486 | |
40ebbb9c | 3487 | if (rv && check_env("IMSM_DEVNAME_AS_SERIAL")) { |
f9ba0ff1 DW |
3488 | memset(serial, 0, MAX_RAID_SERIAL_LEN); |
3489 | fd2devname(fd, (char *) serial); | |
0030e8d6 DW |
3490 | return 0; |
3491 | } | |
3492 | ||
cdddbdbc DW |
3493 | if (rv != 0) { |
3494 | if (devname) | |
e7b84f9d N |
3495 | pr_err("Failed to retrieve serial for %s\n", |
3496 | devname); | |
cdddbdbc DW |
3497 | return rv; |
3498 | } | |
3499 | ||
316e2bf4 DW |
3500 | /* trim all whitespace and non-printable characters and convert |
3501 | * ':' to ';' | |
3502 | */ | |
21e9380b AP |
3503 | for (i = 0, dest = buf; i < sizeof(buf) && buf[i]; i++) { |
3504 | src = &buf[i]; | |
316e2bf4 DW |
3505 | if (*src > 0x20) { |
3506 | /* ':' is reserved for use in placeholder serial | |
3507 | * numbers for missing disks | |
3508 | */ | |
3509 | if (*src == ':') | |
3510 | *dest++ = ';'; | |
3511 | else | |
3512 | *dest++ = *src; | |
3513 | } | |
3514 | } | |
21e9380b AP |
3515 | len = dest - buf; |
3516 | dest = buf; | |
316e2bf4 DW |
3517 | |
3518 | /* truncate leading characters */ | |
3519 | if (len > MAX_RAID_SERIAL_LEN) { | |
3520 | dest += len - MAX_RAID_SERIAL_LEN; | |
1f24f035 | 3521 | len = MAX_RAID_SERIAL_LEN; |
316e2bf4 | 3522 | } |
5c3db629 | 3523 | |
5c3db629 | 3524 | memset(serial, 0, MAX_RAID_SERIAL_LEN); |
316e2bf4 | 3525 | memcpy(serial, dest, len); |
cdddbdbc DW |
3526 | |
3527 | return 0; | |
3528 | } | |
3529 | ||
1f24f035 DW |
3530 | static int serialcmp(__u8 *s1, __u8 *s2) |
3531 | { | |
3532 | return strncmp((char *) s1, (char *) s2, MAX_RAID_SERIAL_LEN); | |
3533 | } | |
3534 | ||
3535 | static void serialcpy(__u8 *dest, __u8 *src) | |
3536 | { | |
3537 | strncpy((char *) dest, (char *) src, MAX_RAID_SERIAL_LEN); | |
3538 | } | |
3539 | ||
54c2c1ea DW |
3540 | static struct dl *serial_to_dl(__u8 *serial, struct intel_super *super) |
3541 | { | |
3542 | struct dl *dl; | |
3543 | ||
3544 | for (dl = super->disks; dl; dl = dl->next) | |
3545 | if (serialcmp(dl->serial, serial) == 0) | |
3546 | break; | |
3547 | ||
3548 | return dl; | |
3549 | } | |
3550 | ||
a2b97981 DW |
3551 | static struct imsm_disk * |
3552 | __serial_to_disk(__u8 *serial, struct imsm_super *mpb, int *idx) | |
3553 | { | |
3554 | int i; | |
3555 | ||
3556 | for (i = 0; i < mpb->num_disks; i++) { | |
3557 | struct imsm_disk *disk = __get_imsm_disk(mpb, i); | |
3558 | ||
3559 | if (serialcmp(disk->serial, serial) == 0) { | |
3560 | if (idx) | |
3561 | *idx = i; | |
3562 | return disk; | |
3563 | } | |
3564 | } | |
3565 | ||
3566 | return NULL; | |
3567 | } | |
3568 | ||
cdddbdbc DW |
3569 | static int |
3570 | load_imsm_disk(int fd, struct intel_super *super, char *devname, int keep_fd) | |
3571 | { | |
a2b97981 | 3572 | struct imsm_disk *disk; |
cdddbdbc DW |
3573 | struct dl *dl; |
3574 | struct stat stb; | |
cdddbdbc | 3575 | int rv; |
a2b97981 | 3576 | char name[40]; |
d23fe947 DW |
3577 | __u8 serial[MAX_RAID_SERIAL_LEN]; |
3578 | ||
3579 | rv = imsm_read_serial(fd, devname, serial); | |
3580 | ||
3581 | if (rv != 0) | |
3582 | return 2; | |
3583 | ||
503975b9 | 3584 | dl = xcalloc(1, sizeof(*dl)); |
cdddbdbc | 3585 | |
a2b97981 DW |
3586 | fstat(fd, &stb); |
3587 | dl->major = major(stb.st_rdev); | |
3588 | dl->minor = minor(stb.st_rdev); | |
3589 | dl->next = super->disks; | |
3590 | dl->fd = keep_fd ? fd : -1; | |
3591 | assert(super->disks == NULL); | |
3592 | super->disks = dl; | |
3593 | serialcpy(dl->serial, serial); | |
3594 | dl->index = -2; | |
3595 | dl->e = NULL; | |
3596 | fd2devname(fd, name); | |
3597 | if (devname) | |
503975b9 | 3598 | dl->devname = xstrdup(devname); |
a2b97981 | 3599 | else |
503975b9 | 3600 | dl->devname = xstrdup(name); |
cdddbdbc | 3601 | |
d23fe947 | 3602 | /* look up this disk's index in the current anchor */ |
a2b97981 DW |
3603 | disk = __serial_to_disk(dl->serial, super->anchor, &dl->index); |
3604 | if (disk) { | |
3605 | dl->disk = *disk; | |
3606 | /* only set index on disks that are a member of a | |
3607 | * populated contianer, i.e. one with raid_devs | |
3608 | */ | |
3609 | if (is_failed(&dl->disk)) | |
3f6efecc | 3610 | dl->index = -2; |
a2b97981 DW |
3611 | else if (is_spare(&dl->disk)) |
3612 | dl->index = -1; | |
3f6efecc DW |
3613 | } |
3614 | ||
949c47a0 DW |
3615 | return 0; |
3616 | } | |
3617 | ||
0e600426 | 3618 | #ifndef MDASSEMBLE |
0c046afd DW |
3619 | /* When migrating map0 contains the 'destination' state while map1 |
3620 | * contains the current state. When not migrating map0 contains the | |
3621 | * current state. This routine assumes that map[0].map_state is set to | |
3622 | * the current array state before being called. | |
3623 | * | |
3624 | * Migration is indicated by one of the following states | |
3625 | * 1/ Idle (migr_state=0 map0state=normal||unitialized||degraded||failed) | |
e3bba0e0 | 3626 | * 2/ Initialize (migr_state=1 migr_type=MIGR_INIT map0state=normal |
0c046afd | 3627 | * map1state=unitialized) |
1484e727 | 3628 | * 3/ Repair (Resync) (migr_state=1 migr_type=MIGR_REPAIR map0state=normal |
0c046afd | 3629 | * map1state=normal) |
e3bba0e0 | 3630 | * 4/ Rebuild (migr_state=1 migr_type=MIGR_REBUILD map0state=normal |
0c046afd | 3631 | * map1state=degraded) |
8e59f3d8 AK |
3632 | * 5/ Migration (mig_state=1 migr_type=MIGR_GEN_MIGR map0state=normal |
3633 | * map1state=normal) | |
0c046afd | 3634 | */ |
8e59f3d8 AK |
3635 | static void migrate(struct imsm_dev *dev, struct intel_super *super, |
3636 | __u8 to_state, int migr_type) | |
3393c6af | 3637 | { |
0c046afd | 3638 | struct imsm_map *dest; |
238c0a71 | 3639 | struct imsm_map *src = get_imsm_map(dev, MAP_0); |
3393c6af | 3640 | |
0c046afd | 3641 | dev->vol.migr_state = 1; |
1484e727 | 3642 | set_migr_type(dev, migr_type); |
f8f603f1 | 3643 | dev->vol.curr_migr_unit = 0; |
238c0a71 | 3644 | dest = get_imsm_map(dev, MAP_1); |
0c046afd | 3645 | |
0556e1a2 | 3646 | /* duplicate and then set the target end state in map[0] */ |
3393c6af | 3647 | memcpy(dest, src, sizeof_imsm_map(src)); |
089f9d79 | 3648 | if (migr_type == MIGR_REBUILD || migr_type == MIGR_GEN_MIGR) { |
0556e1a2 DW |
3649 | __u32 ord; |
3650 | int i; | |
3651 | ||
3652 | for (i = 0; i < src->num_members; i++) { | |
3653 | ord = __le32_to_cpu(src->disk_ord_tbl[i]); | |
3654 | set_imsm_ord_tbl_ent(src, i, ord_to_idx(ord)); | |
3655 | } | |
3656 | } | |
3657 | ||
8e59f3d8 AK |
3658 | if (migr_type == MIGR_GEN_MIGR) |
3659 | /* Clear migration record */ | |
3660 | memset(super->migr_rec, 0, sizeof(struct migr_record)); | |
3661 | ||
0c046afd | 3662 | src->map_state = to_state; |
949c47a0 | 3663 | } |
f8f603f1 | 3664 | |
809da78e AK |
3665 | static void end_migration(struct imsm_dev *dev, struct intel_super *super, |
3666 | __u8 map_state) | |
f8f603f1 | 3667 | { |
238c0a71 AK |
3668 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
3669 | struct imsm_map *prev = get_imsm_map(dev, dev->vol.migr_state == 0 ? | |
3670 | MAP_0 : MAP_1); | |
28bce06f | 3671 | int i, j; |
0556e1a2 DW |
3672 | |
3673 | /* merge any IMSM_ORD_REBUILD bits that were not successfully | |
3674 | * completed in the last migration. | |
3675 | * | |
28bce06f | 3676 | * FIXME add support for raid-level-migration |
0556e1a2 | 3677 | */ |
089f9d79 JS |
3678 | if (map_state != map->map_state && (is_gen_migration(dev) == 0) && |
3679 | prev->map_state != IMSM_T_STATE_UNINITIALIZED) { | |
809da78e AK |
3680 | /* when final map state is other than expected |
3681 | * merge maps (not for migration) | |
3682 | */ | |
3683 | int failed; | |
3684 | ||
3685 | for (i = 0; i < prev->num_members; i++) | |
3686 | for (j = 0; j < map->num_members; j++) | |
3687 | /* during online capacity expansion | |
3688 | * disks position can be changed | |
3689 | * if takeover is used | |
3690 | */ | |
3691 | if (ord_to_idx(map->disk_ord_tbl[j]) == | |
3692 | ord_to_idx(prev->disk_ord_tbl[i])) { | |
3693 | map->disk_ord_tbl[j] |= | |
3694 | prev->disk_ord_tbl[i]; | |
3695 | break; | |
3696 | } | |
3697 | failed = imsm_count_failed(super, dev, MAP_0); | |
3698 | map_state = imsm_check_degraded(super, dev, failed, MAP_0); | |
3699 | } | |
f8f603f1 DW |
3700 | |
3701 | dev->vol.migr_state = 0; | |
ea672ee1 | 3702 | set_migr_type(dev, 0); |
f8f603f1 DW |
3703 | dev->vol.curr_migr_unit = 0; |
3704 | map->map_state = map_state; | |
3705 | } | |
0e600426 | 3706 | #endif |
949c47a0 DW |
3707 | |
3708 | static int parse_raid_devices(struct intel_super *super) | |
3709 | { | |
3710 | int i; | |
3711 | struct imsm_dev *dev_new; | |
4d7b1503 | 3712 | size_t len, len_migr; |
401d313b | 3713 | size_t max_len = 0; |
4d7b1503 DW |
3714 | size_t space_needed = 0; |
3715 | struct imsm_super *mpb = super->anchor; | |
949c47a0 DW |
3716 | |
3717 | for (i = 0; i < super->anchor->num_raid_devs; i++) { | |
3718 | struct imsm_dev *dev_iter = __get_imsm_dev(super->anchor, i); | |
ba2de7ba | 3719 | struct intel_dev *dv; |
949c47a0 | 3720 | |
4d7b1503 DW |
3721 | len = sizeof_imsm_dev(dev_iter, 0); |
3722 | len_migr = sizeof_imsm_dev(dev_iter, 1); | |
3723 | if (len_migr > len) | |
3724 | space_needed += len_migr - len; | |
ca9de185 | 3725 | |
503975b9 | 3726 | dv = xmalloc(sizeof(*dv)); |
401d313b AK |
3727 | if (max_len < len_migr) |
3728 | max_len = len_migr; | |
3729 | if (max_len > len_migr) | |
3730 | space_needed += max_len - len_migr; | |
503975b9 | 3731 | dev_new = xmalloc(max_len); |
949c47a0 | 3732 | imsm_copy_dev(dev_new, dev_iter); |
ba2de7ba DW |
3733 | dv->dev = dev_new; |
3734 | dv->index = i; | |
3735 | dv->next = super->devlist; | |
3736 | super->devlist = dv; | |
949c47a0 | 3737 | } |
cdddbdbc | 3738 | |
4d7b1503 DW |
3739 | /* ensure that super->buf is large enough when all raid devices |
3740 | * are migrating | |
3741 | */ | |
3742 | if (__le32_to_cpu(mpb->mpb_size) + space_needed > super->len) { | |
3743 | void *buf; | |
3744 | ||
f36a9ecd PB |
3745 | len = ROUND_UP(__le32_to_cpu(mpb->mpb_size) + space_needed, |
3746 | super->sector_size); | |
3747 | if (posix_memalign(&buf, MAX_SECTOR_SIZE, len) != 0) | |
4d7b1503 DW |
3748 | return 1; |
3749 | ||
1f45a8ad DW |
3750 | memcpy(buf, super->buf, super->len); |
3751 | memset(buf + super->len, 0, len - super->len); | |
4d7b1503 DW |
3752 | free(super->buf); |
3753 | super->buf = buf; | |
3754 | super->len = len; | |
3755 | } | |
ca9de185 | 3756 | |
cdddbdbc DW |
3757 | return 0; |
3758 | } | |
3759 | ||
604b746f JD |
3760 | /* retrieve a pointer to the bbm log which starts after all raid devices */ |
3761 | struct bbm_log *__get_imsm_bbm_log(struct imsm_super *mpb) | |
3762 | { | |
3763 | void *ptr = NULL; | |
3764 | ||
3765 | if (__le32_to_cpu(mpb->bbm_log_size)) { | |
3766 | ptr = mpb; | |
3767 | ptr += mpb->mpb_size - __le32_to_cpu(mpb->bbm_log_size); | |
1011e834 | 3768 | } |
604b746f JD |
3769 | |
3770 | return ptr; | |
3771 | } | |
3772 | ||
e2f41b2c AK |
3773 | /******************************************************************************* |
3774 | * Function: check_mpb_migr_compatibility | |
3775 | * Description: Function checks for unsupported migration features: | |
3776 | * - migration optimization area (pba_of_lba0) | |
3777 | * - descending reshape (ascending_migr) | |
3778 | * Parameters: | |
3779 | * super : imsm metadata information | |
3780 | * Returns: | |
3781 | * 0 : migration is compatible | |
3782 | * -1 : migration is not compatible | |
3783 | ******************************************************************************/ | |
3784 | int check_mpb_migr_compatibility(struct intel_super *super) | |
3785 | { | |
3786 | struct imsm_map *map0, *map1; | |
3787 | struct migr_record *migr_rec = super->migr_rec; | |
3788 | int i; | |
3789 | ||
3790 | for (i = 0; i < super->anchor->num_raid_devs; i++) { | |
3791 | struct imsm_dev *dev_iter = __get_imsm_dev(super->anchor, i); | |
3792 | ||
3793 | if (dev_iter && | |
3794 | dev_iter->vol.migr_state == 1 && | |
3795 | dev_iter->vol.migr_type == MIGR_GEN_MIGR) { | |
3796 | /* This device is migrating */ | |
238c0a71 AK |
3797 | map0 = get_imsm_map(dev_iter, MAP_0); |
3798 | map1 = get_imsm_map(dev_iter, MAP_1); | |
5551b113 | 3799 | if (pba_of_lba0(map0) != pba_of_lba0(map1)) |
e2f41b2c AK |
3800 | /* migration optimization area was used */ |
3801 | return -1; | |
3802 | if (migr_rec->ascending_migr == 0 | |
3803 | && migr_rec->dest_depth_per_unit > 0) | |
3804 | /* descending reshape not supported yet */ | |
3805 | return -1; | |
3806 | } | |
3807 | } | |
3808 | return 0; | |
3809 | } | |
3810 | ||
d23fe947 | 3811 | static void __free_imsm(struct intel_super *super, int free_disks); |
9ca2c81c | 3812 | |
cdddbdbc | 3813 | /* load_imsm_mpb - read matrix metadata |
f2f5c343 | 3814 | * allocates super->mpb to be freed by free_imsm |
cdddbdbc DW |
3815 | */ |
3816 | static int load_imsm_mpb(int fd, struct intel_super *super, char *devname) | |
3817 | { | |
3818 | unsigned long long dsize; | |
cdddbdbc | 3819 | unsigned long long sectors; |
f36a9ecd | 3820 | unsigned int sector_size = super->sector_size; |
cdddbdbc | 3821 | struct stat; |
6416d527 | 3822 | struct imsm_super *anchor; |
cdddbdbc DW |
3823 | __u32 check_sum; |
3824 | ||
cdddbdbc | 3825 | get_dev_size(fd, NULL, &dsize); |
f36a9ecd | 3826 | if (dsize < 2*sector_size) { |
64436f06 | 3827 | if (devname) |
e7b84f9d N |
3828 | pr_err("%s: device to small for imsm\n", |
3829 | devname); | |
64436f06 N |
3830 | return 1; |
3831 | } | |
cdddbdbc | 3832 | |
f36a9ecd | 3833 | if (lseek64(fd, dsize - (sector_size * 2), SEEK_SET) < 0) { |
cdddbdbc | 3834 | if (devname) |
e7b84f9d N |
3835 | pr_err("Cannot seek to anchor block on %s: %s\n", |
3836 | devname, strerror(errno)); | |
cdddbdbc DW |
3837 | return 1; |
3838 | } | |
3839 | ||
f36a9ecd | 3840 | if (posix_memalign((void **)&anchor, sector_size, sector_size) != 0) { |
ad97895e | 3841 | if (devname) |
7a862a02 | 3842 | pr_err("Failed to allocate imsm anchor buffer on %s\n", devname); |
ad97895e DW |
3843 | return 1; |
3844 | } | |
f36a9ecd | 3845 | if (read(fd, anchor, sector_size) != sector_size) { |
cdddbdbc | 3846 | if (devname) |
e7b84f9d N |
3847 | pr_err("Cannot read anchor block on %s: %s\n", |
3848 | devname, strerror(errno)); | |
6416d527 | 3849 | free(anchor); |
cdddbdbc DW |
3850 | return 1; |
3851 | } | |
3852 | ||
6416d527 | 3853 | if (strncmp((char *) anchor->sig, MPB_SIGNATURE, MPB_SIG_LEN) != 0) { |
cdddbdbc | 3854 | if (devname) |
e7b84f9d | 3855 | pr_err("no IMSM anchor on %s\n", devname); |
6416d527 | 3856 | free(anchor); |
cdddbdbc DW |
3857 | return 2; |
3858 | } | |
3859 | ||
d23fe947 | 3860 | __free_imsm(super, 0); |
f2f5c343 LM |
3861 | /* reload capability and hba */ |
3862 | ||
3863 | /* capability and hba must be updated with new super allocation */ | |
d424212e | 3864 | find_intel_hba_capability(fd, super, devname); |
f36a9ecd PB |
3865 | super->len = ROUND_UP(anchor->mpb_size, sector_size); |
3866 | if (posix_memalign(&super->buf, MAX_SECTOR_SIZE, super->len) != 0) { | |
cdddbdbc | 3867 | if (devname) |
e7b84f9d N |
3868 | pr_err("unable to allocate %zu byte mpb buffer\n", |
3869 | super->len); | |
6416d527 | 3870 | free(anchor); |
cdddbdbc DW |
3871 | return 2; |
3872 | } | |
f36a9ecd | 3873 | memcpy(super->buf, anchor, sector_size); |
cdddbdbc | 3874 | |
f36a9ecd | 3875 | sectors = mpb_sectors(anchor, sector_size) - 1; |
6416d527 | 3876 | free(anchor); |
8e59f3d8 | 3877 | |
de44e46f PB |
3878 | if (posix_memalign(&super->migr_rec_buf, sector_size, |
3879 | MIGR_REC_BUF_SECTORS*sector_size) != 0) { | |
1ade5cc1 | 3880 | pr_err("could not allocate migr_rec buffer\n"); |
8e59f3d8 AK |
3881 | free(super->buf); |
3882 | return 2; | |
3883 | } | |
51d83f5d | 3884 | super->clean_migration_record_by_mdmon = 0; |
8e59f3d8 | 3885 | |
949c47a0 | 3886 | if (!sectors) { |
ecf45690 DW |
3887 | check_sum = __gen_imsm_checksum(super->anchor); |
3888 | if (check_sum != __le32_to_cpu(super->anchor->check_sum)) { | |
3889 | if (devname) | |
e7b84f9d N |
3890 | pr_err("IMSM checksum %x != %x on %s\n", |
3891 | check_sum, | |
3892 | __le32_to_cpu(super->anchor->check_sum), | |
3893 | devname); | |
ecf45690 DW |
3894 | return 2; |
3895 | } | |
3896 | ||
a2b97981 | 3897 | return 0; |
949c47a0 | 3898 | } |
cdddbdbc DW |
3899 | |
3900 | /* read the extended mpb */ | |
f36a9ecd | 3901 | if (lseek64(fd, dsize - (sector_size * (2 + sectors)), SEEK_SET) < 0) { |
cdddbdbc | 3902 | if (devname) |
e7b84f9d N |
3903 | pr_err("Cannot seek to extended mpb on %s: %s\n", |
3904 | devname, strerror(errno)); | |
cdddbdbc DW |
3905 | return 1; |
3906 | } | |
3907 | ||
f36a9ecd PB |
3908 | if ((unsigned int)read(fd, super->buf + sector_size, |
3909 | super->len - sector_size) != super->len - sector_size) { | |
cdddbdbc | 3910 | if (devname) |
e7b84f9d N |
3911 | pr_err("Cannot read extended mpb on %s: %s\n", |
3912 | devname, strerror(errno)); | |
cdddbdbc DW |
3913 | return 2; |
3914 | } | |
3915 | ||
949c47a0 DW |
3916 | check_sum = __gen_imsm_checksum(super->anchor); |
3917 | if (check_sum != __le32_to_cpu(super->anchor->check_sum)) { | |
cdddbdbc | 3918 | if (devname) |
e7b84f9d N |
3919 | pr_err("IMSM checksum %x != %x on %s\n", |
3920 | check_sum, __le32_to_cpu(super->anchor->check_sum), | |
3921 | devname); | |
db575f3b | 3922 | return 3; |
cdddbdbc DW |
3923 | } |
3924 | ||
604b746f JD |
3925 | /* FIXME the BBM log is disk specific so we cannot use this global |
3926 | * buffer for all disks. Ok for now since we only look at the global | |
3927 | * bbm_log_size parameter to gate assembly | |
3928 | */ | |
3929 | super->bbm_log = __get_imsm_bbm_log(super->anchor); | |
3930 | ||
a2b97981 DW |
3931 | return 0; |
3932 | } | |
3933 | ||
8e59f3d8 AK |
3934 | static int read_imsm_migr_rec(int fd, struct intel_super *super); |
3935 | ||
97f81ee2 CA |
3936 | /* clears hi bits in metadata if MPB_ATTRIB_2TB_DISK not set */ |
3937 | static void clear_hi(struct intel_super *super) | |
3938 | { | |
3939 | struct imsm_super *mpb = super->anchor; | |
3940 | int i, n; | |
3941 | if (mpb->attributes & MPB_ATTRIB_2TB_DISK) | |
3942 | return; | |
3943 | for (i = 0; i < mpb->num_disks; ++i) { | |
3944 | struct imsm_disk *disk = &mpb->disk[i]; | |
3945 | disk->total_blocks_hi = 0; | |
3946 | } | |
3947 | for (i = 0; i < mpb->num_raid_devs; ++i) { | |
3948 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
3949 | if (!dev) | |
3950 | return; | |
3951 | for (n = 0; n < 2; ++n) { | |
3952 | struct imsm_map *map = get_imsm_map(dev, n); | |
3953 | if (!map) | |
3954 | continue; | |
3955 | map->pba_of_lba0_hi = 0; | |
3956 | map->blocks_per_member_hi = 0; | |
3957 | map->num_data_stripes_hi = 0; | |
3958 | } | |
3959 | } | |
3960 | } | |
3961 | ||
a2b97981 DW |
3962 | static int |
3963 | load_and_parse_mpb(int fd, struct intel_super *super, char *devname, int keep_fd) | |
3964 | { | |
3965 | int err; | |
3966 | ||
3967 | err = load_imsm_mpb(fd, super, devname); | |
3968 | if (err) | |
3969 | return err; | |
f36a9ecd PB |
3970 | if (super->sector_size == 4096) |
3971 | convert_from_4k(super); | |
a2b97981 DW |
3972 | err = load_imsm_disk(fd, super, devname, keep_fd); |
3973 | if (err) | |
3974 | return err; | |
3975 | err = parse_raid_devices(super); | |
97f81ee2 | 3976 | clear_hi(super); |
a2b97981 | 3977 | return err; |
cdddbdbc DW |
3978 | } |
3979 | ||
ae6aad82 DW |
3980 | static void __free_imsm_disk(struct dl *d) |
3981 | { | |
3982 | if (d->fd >= 0) | |
3983 | close(d->fd); | |
3984 | if (d->devname) | |
3985 | free(d->devname); | |
0dcecb2e DW |
3986 | if (d->e) |
3987 | free(d->e); | |
ae6aad82 DW |
3988 | free(d); |
3989 | ||
3990 | } | |
1a64be56 | 3991 | |
cdddbdbc DW |
3992 | static void free_imsm_disks(struct intel_super *super) |
3993 | { | |
47ee5a45 | 3994 | struct dl *d; |
cdddbdbc | 3995 | |
47ee5a45 DW |
3996 | while (super->disks) { |
3997 | d = super->disks; | |
cdddbdbc | 3998 | super->disks = d->next; |
ae6aad82 | 3999 | __free_imsm_disk(d); |
cdddbdbc | 4000 | } |
cb82edca AK |
4001 | while (super->disk_mgmt_list) { |
4002 | d = super->disk_mgmt_list; | |
4003 | super->disk_mgmt_list = d->next; | |
4004 | __free_imsm_disk(d); | |
4005 | } | |
47ee5a45 DW |
4006 | while (super->missing) { |
4007 | d = super->missing; | |
4008 | super->missing = d->next; | |
4009 | __free_imsm_disk(d); | |
4010 | } | |
4011 | ||
cdddbdbc DW |
4012 | } |
4013 | ||
9ca2c81c | 4014 | /* free all the pieces hanging off of a super pointer */ |
d23fe947 | 4015 | static void __free_imsm(struct intel_super *super, int free_disks) |
cdddbdbc | 4016 | { |
88654014 LM |
4017 | struct intel_hba *elem, *next; |
4018 | ||
9ca2c81c | 4019 | if (super->buf) { |
949c47a0 | 4020 | free(super->buf); |
9ca2c81c DW |
4021 | super->buf = NULL; |
4022 | } | |
f2f5c343 LM |
4023 | /* unlink capability description */ |
4024 | super->orom = NULL; | |
8e59f3d8 AK |
4025 | if (super->migr_rec_buf) { |
4026 | free(super->migr_rec_buf); | |
4027 | super->migr_rec_buf = NULL; | |
4028 | } | |
d23fe947 DW |
4029 | if (free_disks) |
4030 | free_imsm_disks(super); | |
ba2de7ba | 4031 | free_devlist(super); |
88654014 LM |
4032 | elem = super->hba; |
4033 | while (elem) { | |
4034 | if (elem->path) | |
4035 | free((void *)elem->path); | |
4036 | next = elem->next; | |
4037 | free(elem); | |
4038 | elem = next; | |
88c32bb1 | 4039 | } |
88654014 | 4040 | super->hba = NULL; |
cdddbdbc DW |
4041 | } |
4042 | ||
9ca2c81c DW |
4043 | static void free_imsm(struct intel_super *super) |
4044 | { | |
d23fe947 | 4045 | __free_imsm(super, 1); |
9ca2c81c DW |
4046 | free(super); |
4047 | } | |
cdddbdbc DW |
4048 | |
4049 | static void free_super_imsm(struct supertype *st) | |
4050 | { | |
4051 | struct intel_super *super = st->sb; | |
4052 | ||
4053 | if (!super) | |
4054 | return; | |
4055 | ||
4056 | free_imsm(super); | |
4057 | st->sb = NULL; | |
4058 | } | |
4059 | ||
49133e57 | 4060 | static struct intel_super *alloc_super(void) |
c2c087e6 | 4061 | { |
503975b9 | 4062 | struct intel_super *super = xcalloc(1, sizeof(*super)); |
c2c087e6 | 4063 | |
503975b9 N |
4064 | super->current_vol = -1; |
4065 | super->create_offset = ~((unsigned long long) 0); | |
c2c087e6 DW |
4066 | return super; |
4067 | } | |
4068 | ||
f0f5a016 LM |
4069 | /* |
4070 | * find and allocate hba and OROM/EFI based on valid fd of RAID component device | |
4071 | */ | |
d424212e | 4072 | static int find_intel_hba_capability(int fd, struct intel_super *super, char *devname) |
f0f5a016 LM |
4073 | { |
4074 | struct sys_dev *hba_name; | |
4075 | int rv = 0; | |
4076 | ||
089f9d79 | 4077 | if (fd < 0 || check_env("IMSM_NO_PLATFORM")) { |
f2f5c343 | 4078 | super->orom = NULL; |
f0f5a016 LM |
4079 | super->hba = NULL; |
4080 | return 0; | |
4081 | } | |
4082 | hba_name = find_disk_attached_hba(fd, NULL); | |
4083 | if (!hba_name) { | |
d424212e | 4084 | if (devname) |
e7b84f9d N |
4085 | pr_err("%s is not attached to Intel(R) RAID controller.\n", |
4086 | devname); | |
f0f5a016 LM |
4087 | return 1; |
4088 | } | |
4089 | rv = attach_hba_to_super(super, hba_name); | |
4090 | if (rv == 2) { | |
d424212e N |
4091 | if (devname) { |
4092 | struct intel_hba *hba = super->hba; | |
f0f5a016 | 4093 | |
60f0f54d PB |
4094 | pr_err("%s is attached to Intel(R) %s %s (%s),\n" |
4095 | " but the container is assigned to Intel(R) %s %s (", | |
d424212e | 4096 | devname, |
614902f6 | 4097 | get_sys_dev_type(hba_name->type), |
60f0f54d | 4098 | hba_name->type == SYS_DEV_VMD ? "domain" : "RAID controller", |
f0f5a016 | 4099 | hba_name->pci_id ? : "Err!", |
60f0f54d PB |
4100 | get_sys_dev_type(super->hba->type), |
4101 | hba->type == SYS_DEV_VMD ? "domain" : "RAID controller"); | |
f0f5a016 | 4102 | |
f0f5a016 LM |
4103 | while (hba) { |
4104 | fprintf(stderr, "%s", hba->pci_id ? : "Err!"); | |
4105 | if (hba->next) | |
4106 | fprintf(stderr, ", "); | |
4107 | hba = hba->next; | |
4108 | } | |
6b781d33 | 4109 | fprintf(stderr, ").\n" |
60f0f54d PB |
4110 | " Mixing devices attached to different %s is not allowed.\n", |
4111 | hba_name->type == SYS_DEV_VMD ? "VMD domains" : "controllers"); | |
f0f5a016 | 4112 | } |
f0f5a016 LM |
4113 | return 2; |
4114 | } | |
6b781d33 | 4115 | super->orom = find_imsm_capability(hba_name); |
f2f5c343 LM |
4116 | if (!super->orom) |
4117 | return 3; | |
614902f6 | 4118 | |
f0f5a016 LM |
4119 | return 0; |
4120 | } | |
4121 | ||
47ee5a45 DW |
4122 | /* find_missing - helper routine for load_super_imsm_all that identifies |
4123 | * disks that have disappeared from the system. This routine relies on | |
4124 | * the mpb being uptodate, which it is at load time. | |
4125 | */ | |
4126 | static int find_missing(struct intel_super *super) | |
4127 | { | |
4128 | int i; | |
4129 | struct imsm_super *mpb = super->anchor; | |
4130 | struct dl *dl; | |
4131 | struct imsm_disk *disk; | |
47ee5a45 DW |
4132 | |
4133 | for (i = 0; i < mpb->num_disks; i++) { | |
4134 | disk = __get_imsm_disk(mpb, i); | |
54c2c1ea | 4135 | dl = serial_to_dl(disk->serial, super); |
47ee5a45 DW |
4136 | if (dl) |
4137 | continue; | |
47ee5a45 | 4138 | |
503975b9 | 4139 | dl = xmalloc(sizeof(*dl)); |
47ee5a45 DW |
4140 | dl->major = 0; |
4141 | dl->minor = 0; | |
4142 | dl->fd = -1; | |
503975b9 | 4143 | dl->devname = xstrdup("missing"); |
47ee5a45 DW |
4144 | dl->index = i; |
4145 | serialcpy(dl->serial, disk->serial); | |
4146 | dl->disk = *disk; | |
689c9bf3 | 4147 | dl->e = NULL; |
47ee5a45 DW |
4148 | dl->next = super->missing; |
4149 | super->missing = dl; | |
4150 | } | |
4151 | ||
4152 | return 0; | |
4153 | } | |
4154 | ||
3960e579 | 4155 | #ifndef MDASSEMBLE |
a2b97981 DW |
4156 | static struct intel_disk *disk_list_get(__u8 *serial, struct intel_disk *disk_list) |
4157 | { | |
4158 | struct intel_disk *idisk = disk_list; | |
4159 | ||
4160 | while (idisk) { | |
4161 | if (serialcmp(idisk->disk.serial, serial) == 0) | |
4162 | break; | |
4163 | idisk = idisk->next; | |
4164 | } | |
4165 | ||
4166 | return idisk; | |
4167 | } | |
4168 | ||
4169 | static int __prep_thunderdome(struct intel_super **table, int tbl_size, | |
4170 | struct intel_super *super, | |
4171 | struct intel_disk **disk_list) | |
4172 | { | |
4173 | struct imsm_disk *d = &super->disks->disk; | |
4174 | struct imsm_super *mpb = super->anchor; | |
4175 | int i, j; | |
4176 | ||
4177 | for (i = 0; i < tbl_size; i++) { | |
4178 | struct imsm_super *tbl_mpb = table[i]->anchor; | |
4179 | struct imsm_disk *tbl_d = &table[i]->disks->disk; | |
4180 | ||
4181 | if (tbl_mpb->family_num == mpb->family_num) { | |
4182 | if (tbl_mpb->check_sum == mpb->check_sum) { | |
1ade5cc1 N |
4183 | dprintf("mpb from %d:%d matches %d:%d\n", |
4184 | super->disks->major, | |
a2b97981 DW |
4185 | super->disks->minor, |
4186 | table[i]->disks->major, | |
4187 | table[i]->disks->minor); | |
4188 | break; | |
4189 | } | |
4190 | ||
4191 | if (((is_configured(d) && !is_configured(tbl_d)) || | |
4192 | is_configured(d) == is_configured(tbl_d)) && | |
4193 | tbl_mpb->generation_num < mpb->generation_num) { | |
4194 | /* current version of the mpb is a | |
4195 | * better candidate than the one in | |
4196 | * super_table, but copy over "cross | |
4197 | * generational" status | |
4198 | */ | |
4199 | struct intel_disk *idisk; | |
4200 | ||
1ade5cc1 N |
4201 | dprintf("mpb from %d:%d replaces %d:%d\n", |
4202 | super->disks->major, | |
a2b97981 DW |
4203 | super->disks->minor, |
4204 | table[i]->disks->major, | |
4205 | table[i]->disks->minor); | |
4206 | ||
4207 | idisk = disk_list_get(tbl_d->serial, *disk_list); | |
4208 | if (idisk && is_failed(&idisk->disk)) | |
4209 | tbl_d->status |= FAILED_DISK; | |
4210 | break; | |
4211 | } else { | |
4212 | struct intel_disk *idisk; | |
4213 | struct imsm_disk *disk; | |
4214 | ||
4215 | /* tbl_mpb is more up to date, but copy | |
4216 | * over cross generational status before | |
4217 | * returning | |
4218 | */ | |
4219 | disk = __serial_to_disk(d->serial, mpb, NULL); | |
4220 | if (disk && is_failed(disk)) | |
4221 | d->status |= FAILED_DISK; | |
4222 | ||
4223 | idisk = disk_list_get(d->serial, *disk_list); | |
4224 | if (idisk) { | |
4225 | idisk->owner = i; | |
4226 | if (disk && is_configured(disk)) | |
4227 | idisk->disk.status |= CONFIGURED_DISK; | |
4228 | } | |
4229 | ||
1ade5cc1 N |
4230 | dprintf("mpb from %d:%d prefer %d:%d\n", |
4231 | super->disks->major, | |
a2b97981 DW |
4232 | super->disks->minor, |
4233 | table[i]->disks->major, | |
4234 | table[i]->disks->minor); | |
4235 | ||
4236 | return tbl_size; | |
4237 | } | |
4238 | } | |
4239 | } | |
4240 | ||
4241 | if (i >= tbl_size) | |
4242 | table[tbl_size++] = super; | |
4243 | else | |
4244 | table[i] = super; | |
4245 | ||
4246 | /* update/extend the merged list of imsm_disk records */ | |
4247 | for (j = 0; j < mpb->num_disks; j++) { | |
4248 | struct imsm_disk *disk = __get_imsm_disk(mpb, j); | |
4249 | struct intel_disk *idisk; | |
4250 | ||
4251 | idisk = disk_list_get(disk->serial, *disk_list); | |
4252 | if (idisk) { | |
4253 | idisk->disk.status |= disk->status; | |
4254 | if (is_configured(&idisk->disk) || | |
4255 | is_failed(&idisk->disk)) | |
4256 | idisk->disk.status &= ~(SPARE_DISK); | |
4257 | } else { | |
503975b9 | 4258 | idisk = xcalloc(1, sizeof(*idisk)); |
a2b97981 DW |
4259 | idisk->owner = IMSM_UNKNOWN_OWNER; |
4260 | idisk->disk = *disk; | |
4261 | idisk->next = *disk_list; | |
4262 | *disk_list = idisk; | |
4263 | } | |
4264 | ||
4265 | if (serialcmp(idisk->disk.serial, d->serial) == 0) | |
4266 | idisk->owner = i; | |
4267 | } | |
4268 | ||
4269 | return tbl_size; | |
4270 | } | |
4271 | ||
4272 | static struct intel_super * | |
4273 | validate_members(struct intel_super *super, struct intel_disk *disk_list, | |
4274 | const int owner) | |
4275 | { | |
4276 | struct imsm_super *mpb = super->anchor; | |
4277 | int ok_count = 0; | |
4278 | int i; | |
4279 | ||
4280 | for (i = 0; i < mpb->num_disks; i++) { | |
4281 | struct imsm_disk *disk = __get_imsm_disk(mpb, i); | |
4282 | struct intel_disk *idisk; | |
4283 | ||
4284 | idisk = disk_list_get(disk->serial, disk_list); | |
4285 | if (idisk) { | |
4286 | if (idisk->owner == owner || | |
4287 | idisk->owner == IMSM_UNKNOWN_OWNER) | |
4288 | ok_count++; | |
4289 | else | |
1ade5cc1 N |
4290 | dprintf("'%.16s' owner %d != %d\n", |
4291 | disk->serial, idisk->owner, | |
a2b97981 DW |
4292 | owner); |
4293 | } else { | |
1ade5cc1 N |
4294 | dprintf("unknown disk %x [%d]: %.16s\n", |
4295 | __le32_to_cpu(mpb->family_num), i, | |
a2b97981 DW |
4296 | disk->serial); |
4297 | break; | |
4298 | } | |
4299 | } | |
4300 | ||
4301 | if (ok_count == mpb->num_disks) | |
4302 | return super; | |
4303 | return NULL; | |
4304 | } | |
4305 | ||
4306 | static void show_conflicts(__u32 family_num, struct intel_super *super_list) | |
4307 | { | |
4308 | struct intel_super *s; | |
4309 | ||
4310 | for (s = super_list; s; s = s->next) { | |
4311 | if (family_num != s->anchor->family_num) | |
4312 | continue; | |
e12b3daa | 4313 | pr_err("Conflict, offlining family %#x on '%s'\n", |
a2b97981 DW |
4314 | __le32_to_cpu(family_num), s->disks->devname); |
4315 | } | |
4316 | } | |
4317 | ||
4318 | static struct intel_super * | |
4319 | imsm_thunderdome(struct intel_super **super_list, int len) | |
4320 | { | |
4321 | struct intel_super *super_table[len]; | |
4322 | struct intel_disk *disk_list = NULL; | |
4323 | struct intel_super *champion, *spare; | |
4324 | struct intel_super *s, **del; | |
4325 | int tbl_size = 0; | |
4326 | int conflict; | |
4327 | int i; | |
4328 | ||
4329 | memset(super_table, 0, sizeof(super_table)); | |
4330 | for (s = *super_list; s; s = s->next) | |
4331 | tbl_size = __prep_thunderdome(super_table, tbl_size, s, &disk_list); | |
4332 | ||
4333 | for (i = 0; i < tbl_size; i++) { | |
4334 | struct imsm_disk *d; | |
4335 | struct intel_disk *idisk; | |
4336 | struct imsm_super *mpb = super_table[i]->anchor; | |
4337 | ||
4338 | s = super_table[i]; | |
4339 | d = &s->disks->disk; | |
4340 | ||
4341 | /* 'd' must appear in merged disk list for its | |
4342 | * configuration to be valid | |
4343 | */ | |
4344 | idisk = disk_list_get(d->serial, disk_list); | |
4345 | if (idisk && idisk->owner == i) | |
4346 | s = validate_members(s, disk_list, i); | |
4347 | else | |
4348 | s = NULL; | |
4349 | ||
4350 | if (!s) | |
1ade5cc1 N |
4351 | dprintf("marking family: %#x from %d:%d offline\n", |
4352 | mpb->family_num, | |
a2b97981 DW |
4353 | super_table[i]->disks->major, |
4354 | super_table[i]->disks->minor); | |
4355 | super_table[i] = s; | |
4356 | } | |
4357 | ||
4358 | /* This is where the mdadm implementation differs from the Windows | |
4359 | * driver which has no strict concept of a container. We can only | |
4360 | * assemble one family from a container, so when returning a prodigal | |
4361 | * array member to this system the code will not be able to disambiguate | |
4362 | * the container contents that should be assembled ("foreign" versus | |
4363 | * "local"). It requires user intervention to set the orig_family_num | |
4364 | * to a new value to establish a new container. The Windows driver in | |
4365 | * this situation fixes up the volume name in place and manages the | |
4366 | * foreign array as an independent entity. | |
4367 | */ | |
4368 | s = NULL; | |
4369 | spare = NULL; | |
4370 | conflict = 0; | |
4371 | for (i = 0; i < tbl_size; i++) { | |
4372 | struct intel_super *tbl_ent = super_table[i]; | |
4373 | int is_spare = 0; | |
4374 | ||
4375 | if (!tbl_ent) | |
4376 | continue; | |
4377 | ||
4378 | if (tbl_ent->anchor->num_raid_devs == 0) { | |
4379 | spare = tbl_ent; | |
4380 | is_spare = 1; | |
4381 | } | |
4382 | ||
4383 | if (s && !is_spare) { | |
4384 | show_conflicts(tbl_ent->anchor->family_num, *super_list); | |
4385 | conflict++; | |
4386 | } else if (!s && !is_spare) | |
4387 | s = tbl_ent; | |
4388 | } | |
4389 | ||
4390 | if (!s) | |
4391 | s = spare; | |
4392 | if (!s) { | |
4393 | champion = NULL; | |
4394 | goto out; | |
4395 | } | |
4396 | champion = s; | |
4397 | ||
4398 | if (conflict) | |
7a862a02 | 4399 | pr_err("Chose family %#x on '%s', assemble conflicts to new container with '--update=uuid'\n", |
a2b97981 DW |
4400 | __le32_to_cpu(s->anchor->family_num), s->disks->devname); |
4401 | ||
4402 | /* collect all dl's onto 'champion', and update them to | |
4403 | * champion's version of the status | |
4404 | */ | |
4405 | for (s = *super_list; s; s = s->next) { | |
4406 | struct imsm_super *mpb = champion->anchor; | |
4407 | struct dl *dl = s->disks; | |
4408 | ||
4409 | if (s == champion) | |
4410 | continue; | |
4411 | ||
5d7b407a CA |
4412 | mpb->attributes |= s->anchor->attributes & MPB_ATTRIB_2TB_DISK; |
4413 | ||
a2b97981 DW |
4414 | for (i = 0; i < mpb->num_disks; i++) { |
4415 | struct imsm_disk *disk; | |
4416 | ||
4417 | disk = __serial_to_disk(dl->serial, mpb, &dl->index); | |
4418 | if (disk) { | |
4419 | dl->disk = *disk; | |
4420 | /* only set index on disks that are a member of | |
4421 | * a populated contianer, i.e. one with | |
4422 | * raid_devs | |
4423 | */ | |
4424 | if (is_failed(&dl->disk)) | |
4425 | dl->index = -2; | |
4426 | else if (is_spare(&dl->disk)) | |
4427 | dl->index = -1; | |
4428 | break; | |
4429 | } | |
4430 | } | |
4431 | ||
4432 | if (i >= mpb->num_disks) { | |
4433 | struct intel_disk *idisk; | |
4434 | ||
4435 | idisk = disk_list_get(dl->serial, disk_list); | |
ecf408e9 | 4436 | if (idisk && is_spare(&idisk->disk) && |
a2b97981 DW |
4437 | !is_failed(&idisk->disk) && !is_configured(&idisk->disk)) |
4438 | dl->index = -1; | |
4439 | else { | |
4440 | dl->index = -2; | |
4441 | continue; | |
4442 | } | |
4443 | } | |
4444 | ||
4445 | dl->next = champion->disks; | |
4446 | champion->disks = dl; | |
4447 | s->disks = NULL; | |
4448 | } | |
4449 | ||
4450 | /* delete 'champion' from super_list */ | |
4451 | for (del = super_list; *del; ) { | |
4452 | if (*del == champion) { | |
4453 | *del = (*del)->next; | |
4454 | break; | |
4455 | } else | |
4456 | del = &(*del)->next; | |
4457 | } | |
4458 | champion->next = NULL; | |
4459 | ||
4460 | out: | |
4461 | while (disk_list) { | |
4462 | struct intel_disk *idisk = disk_list; | |
4463 | ||
4464 | disk_list = disk_list->next; | |
4465 | free(idisk); | |
4466 | } | |
4467 | ||
4468 | return champion; | |
4469 | } | |
4470 | ||
9587c373 LM |
4471 | static int |
4472 | get_sra_super_block(int fd, struct intel_super **super_list, char *devname, int *max, int keep_fd); | |
4dd2df09 | 4473 | static int get_super_block(struct intel_super **super_list, char *devnm, char *devname, |
9587c373 | 4474 | int major, int minor, int keep_fd); |
ec50f7b6 LM |
4475 | static int |
4476 | get_devlist_super_block(struct md_list *devlist, struct intel_super **super_list, | |
4477 | int *max, int keep_fd); | |
4478 | ||
cdddbdbc | 4479 | static int load_super_imsm_all(struct supertype *st, int fd, void **sbp, |
ec50f7b6 LM |
4480 | char *devname, struct md_list *devlist, |
4481 | int keep_fd) | |
cdddbdbc | 4482 | { |
a2b97981 DW |
4483 | struct intel_super *super_list = NULL; |
4484 | struct intel_super *super = NULL; | |
a2b97981 | 4485 | int err = 0; |
9587c373 | 4486 | int i = 0; |
dab4a513 | 4487 | |
9587c373 LM |
4488 | if (fd >= 0) |
4489 | /* 'fd' is an opened container */ | |
4490 | err = get_sra_super_block(fd, &super_list, devname, &i, keep_fd); | |
4491 | else | |
ec50f7b6 LM |
4492 | /* get super block from devlist devices */ |
4493 | err = get_devlist_super_block(devlist, &super_list, &i, keep_fd); | |
9587c373 | 4494 | if (err) |
1602d52c | 4495 | goto error; |
a2b97981 DW |
4496 | /* all mpbs enter, maybe one leaves */ |
4497 | super = imsm_thunderdome(&super_list, i); | |
4498 | if (!super) { | |
4499 | err = 1; | |
4500 | goto error; | |
cdddbdbc DW |
4501 | } |
4502 | ||
47ee5a45 DW |
4503 | if (find_missing(super) != 0) { |
4504 | free_imsm(super); | |
a2b97981 DW |
4505 | err = 2; |
4506 | goto error; | |
47ee5a45 | 4507 | } |
8e59f3d8 AK |
4508 | |
4509 | /* load migration record */ | |
4510 | err = load_imsm_migr_rec(super, NULL); | |
4c965cc9 AK |
4511 | if (err == -1) { |
4512 | /* migration is in progress, | |
4513 | * but migr_rec cannot be loaded, | |
4514 | */ | |
8e59f3d8 AK |
4515 | err = 4; |
4516 | goto error; | |
4517 | } | |
e2f41b2c AK |
4518 | |
4519 | /* Check migration compatibility */ | |
089f9d79 | 4520 | if (err == 0 && check_mpb_migr_compatibility(super) != 0) { |
e7b84f9d | 4521 | pr_err("Unsupported migration detected"); |
e2f41b2c AK |
4522 | if (devname) |
4523 | fprintf(stderr, " on %s\n", devname); | |
4524 | else | |
4525 | fprintf(stderr, " (IMSM).\n"); | |
4526 | ||
4527 | err = 5; | |
4528 | goto error; | |
4529 | } | |
4530 | ||
a2b97981 DW |
4531 | err = 0; |
4532 | ||
4533 | error: | |
4534 | while (super_list) { | |
4535 | struct intel_super *s = super_list; | |
4536 | ||
4537 | super_list = super_list->next; | |
4538 | free_imsm(s); | |
4539 | } | |
9587c373 | 4540 | |
a2b97981 DW |
4541 | if (err) |
4542 | return err; | |
f7e7067b | 4543 | |
cdddbdbc | 4544 | *sbp = super; |
9587c373 | 4545 | if (fd >= 0) |
4dd2df09 | 4546 | strcpy(st->container_devnm, fd2devnm(fd)); |
9587c373 | 4547 | else |
4dd2df09 | 4548 | st->container_devnm[0] = 0; |
a2b97981 | 4549 | if (err == 0 && st->ss == NULL) { |
bf5a934a | 4550 | st->ss = &super_imsm; |
cdddbdbc DW |
4551 | st->minor_version = 0; |
4552 | st->max_devs = IMSM_MAX_DEVICES; | |
4553 | } | |
cdddbdbc DW |
4554 | return 0; |
4555 | } | |
2b959fbf | 4556 | |
ec50f7b6 LM |
4557 | static int |
4558 | get_devlist_super_block(struct md_list *devlist, struct intel_super **super_list, | |
4559 | int *max, int keep_fd) | |
4560 | { | |
4561 | struct md_list *tmpdev; | |
4562 | int err = 0; | |
4563 | int i = 0; | |
9587c373 | 4564 | |
ec50f7b6 LM |
4565 | for (i = 0, tmpdev = devlist; tmpdev; tmpdev = tmpdev->next) { |
4566 | if (tmpdev->used != 1) | |
4567 | continue; | |
4568 | if (tmpdev->container == 1) { | |
ca9de185 | 4569 | int lmax = 0; |
ec50f7b6 LM |
4570 | int fd = dev_open(tmpdev->devname, O_RDONLY|O_EXCL); |
4571 | if (fd < 0) { | |
e7b84f9d | 4572 | pr_err("cannot open device %s: %s\n", |
ec50f7b6 LM |
4573 | tmpdev->devname, strerror(errno)); |
4574 | err = 8; | |
4575 | goto error; | |
4576 | } | |
4577 | err = get_sra_super_block(fd, super_list, | |
4578 | tmpdev->devname, &lmax, | |
4579 | keep_fd); | |
4580 | i += lmax; | |
4581 | close(fd); | |
4582 | if (err) { | |
4583 | err = 7; | |
4584 | goto error; | |
4585 | } | |
4586 | } else { | |
4587 | int major = major(tmpdev->st_rdev); | |
4588 | int minor = minor(tmpdev->st_rdev); | |
4589 | err = get_super_block(super_list, | |
4dd2df09 | 4590 | NULL, |
ec50f7b6 LM |
4591 | tmpdev->devname, |
4592 | major, minor, | |
4593 | keep_fd); | |
4594 | i++; | |
4595 | if (err) { | |
4596 | err = 6; | |
4597 | goto error; | |
4598 | } | |
4599 | } | |
4600 | } | |
4601 | error: | |
4602 | *max = i; | |
4603 | return err; | |
4604 | } | |
9587c373 | 4605 | |
4dd2df09 | 4606 | static int get_super_block(struct intel_super **super_list, char *devnm, char *devname, |
9587c373 LM |
4607 | int major, int minor, int keep_fd) |
4608 | { | |
594dc1b8 | 4609 | struct intel_super *s; |
9587c373 LM |
4610 | char nm[32]; |
4611 | int dfd = -1; | |
9587c373 LM |
4612 | int err = 0; |
4613 | int retry; | |
4614 | ||
4615 | s = alloc_super(); | |
4616 | if (!s) { | |
4617 | err = 1; | |
4618 | goto error; | |
4619 | } | |
4620 | ||
4621 | sprintf(nm, "%d:%d", major, minor); | |
4622 | dfd = dev_open(nm, O_RDWR); | |
4623 | if (dfd < 0) { | |
4624 | err = 2; | |
4625 | goto error; | |
4626 | } | |
4627 | ||
fa7bb6f8 | 4628 | get_dev_sector_size(dfd, NULL, &s->sector_size); |
cb8f6859 | 4629 | find_intel_hba_capability(dfd, s, devname); |
9587c373 LM |
4630 | err = load_and_parse_mpb(dfd, s, NULL, keep_fd); |
4631 | ||
4632 | /* retry the load if we might have raced against mdmon */ | |
4dd2df09 | 4633 | if (err == 3 && devnm && mdmon_running(devnm)) |
9587c373 LM |
4634 | for (retry = 0; retry < 3; retry++) { |
4635 | usleep(3000); | |
4636 | err = load_and_parse_mpb(dfd, s, NULL, keep_fd); | |
4637 | if (err != 3) | |
4638 | break; | |
4639 | } | |
4640 | error: | |
4641 | if (!err) { | |
4642 | s->next = *super_list; | |
4643 | *super_list = s; | |
4644 | } else { | |
4645 | if (s) | |
4646 | free(s); | |
36614e95 | 4647 | if (dfd >= 0) |
9587c373 LM |
4648 | close(dfd); |
4649 | } | |
089f9d79 | 4650 | if (dfd >= 0 && !keep_fd) |
9587c373 LM |
4651 | close(dfd); |
4652 | return err; | |
4653 | ||
4654 | } | |
4655 | ||
4656 | static int | |
4657 | get_sra_super_block(int fd, struct intel_super **super_list, char *devname, int *max, int keep_fd) | |
4658 | { | |
4659 | struct mdinfo *sra; | |
4dd2df09 | 4660 | char *devnm; |
9587c373 LM |
4661 | struct mdinfo *sd; |
4662 | int err = 0; | |
4663 | int i = 0; | |
4dd2df09 | 4664 | sra = sysfs_read(fd, NULL, GET_LEVEL|GET_VERSION|GET_DEVS|GET_STATE); |
9587c373 LM |
4665 | if (!sra) |
4666 | return 1; | |
4667 | ||
4668 | if (sra->array.major_version != -1 || | |
4669 | sra->array.minor_version != -2 || | |
4670 | strcmp(sra->text_version, "imsm") != 0) { | |
4671 | err = 1; | |
4672 | goto error; | |
4673 | } | |
4674 | /* load all mpbs */ | |
4dd2df09 | 4675 | devnm = fd2devnm(fd); |
9587c373 | 4676 | for (sd = sra->devs, i = 0; sd; sd = sd->next, i++) { |
4dd2df09 | 4677 | if (get_super_block(super_list, devnm, devname, |
9587c373 LM |
4678 | sd->disk.major, sd->disk.minor, keep_fd) != 0) { |
4679 | err = 7; | |
4680 | goto error; | |
4681 | } | |
4682 | } | |
4683 | error: | |
4684 | sysfs_free(sra); | |
4685 | *max = i; | |
4686 | return err; | |
4687 | } | |
4688 | ||
2b959fbf N |
4689 | static int load_container_imsm(struct supertype *st, int fd, char *devname) |
4690 | { | |
ec50f7b6 | 4691 | return load_super_imsm_all(st, fd, &st->sb, devname, NULL, 1); |
2b959fbf | 4692 | } |
cdddbdbc DW |
4693 | #endif |
4694 | ||
4695 | static int load_super_imsm(struct supertype *st, int fd, char *devname) | |
4696 | { | |
4697 | struct intel_super *super; | |
4698 | int rv; | |
8a3544f8 | 4699 | int retry; |
cdddbdbc | 4700 | |
357ac106 | 4701 | if (test_partition(fd)) |
691c6ee1 N |
4702 | /* IMSM not allowed on partitions */ |
4703 | return 1; | |
4704 | ||
37424f13 DW |
4705 | free_super_imsm(st); |
4706 | ||
49133e57 | 4707 | super = alloc_super(); |
fa7bb6f8 | 4708 | get_dev_sector_size(fd, NULL, &super->sector_size); |
ea2bc72b LM |
4709 | /* Load hba and capabilities if they exist. |
4710 | * But do not preclude loading metadata in case capabilities or hba are | |
4711 | * non-compliant and ignore_hw_compat is set. | |
4712 | */ | |
d424212e | 4713 | rv = find_intel_hba_capability(fd, super, devname); |
f2f5c343 | 4714 | /* no orom/efi or non-intel hba of the disk */ |
089f9d79 | 4715 | if (rv != 0 && st->ignore_hw_compat == 0) { |
f2f5c343 | 4716 | if (devname) |
e7b84f9d | 4717 | pr_err("No OROM/EFI properties for %s\n", devname); |
f2f5c343 LM |
4718 | free_imsm(super); |
4719 | return 2; | |
4720 | } | |
a2b97981 | 4721 | rv = load_and_parse_mpb(fd, super, devname, 0); |
cdddbdbc | 4722 | |
8a3544f8 AP |
4723 | /* retry the load if we might have raced against mdmon */ |
4724 | if (rv == 3) { | |
f96b1302 AP |
4725 | struct mdstat_ent *mdstat = NULL; |
4726 | char *name = fd2kname(fd); | |
4727 | ||
4728 | if (name) | |
4729 | mdstat = mdstat_by_component(name); | |
8a3544f8 AP |
4730 | |
4731 | if (mdstat && mdmon_running(mdstat->devnm) && getpid() != mdmon_pid(mdstat->devnm)) { | |
4732 | for (retry = 0; retry < 3; retry++) { | |
4733 | usleep(3000); | |
4734 | rv = load_and_parse_mpb(fd, super, devname, 0); | |
4735 | if (rv != 3) | |
4736 | break; | |
4737 | } | |
4738 | } | |
4739 | ||
4740 | free_mdstat(mdstat); | |
4741 | } | |
4742 | ||
cdddbdbc DW |
4743 | if (rv) { |
4744 | if (devname) | |
7a862a02 | 4745 | pr_err("Failed to load all information sections on %s\n", devname); |
cdddbdbc DW |
4746 | free_imsm(super); |
4747 | return rv; | |
4748 | } | |
4749 | ||
4750 | st->sb = super; | |
4751 | if (st->ss == NULL) { | |
4752 | st->ss = &super_imsm; | |
4753 | st->minor_version = 0; | |
4754 | st->max_devs = IMSM_MAX_DEVICES; | |
4755 | } | |
8e59f3d8 AK |
4756 | |
4757 | /* load migration record */ | |
2e062e82 AK |
4758 | if (load_imsm_migr_rec(super, NULL) == 0) { |
4759 | /* Check for unsupported migration features */ | |
4760 | if (check_mpb_migr_compatibility(super) != 0) { | |
e7b84f9d | 4761 | pr_err("Unsupported migration detected"); |
2e062e82 AK |
4762 | if (devname) |
4763 | fprintf(stderr, " on %s\n", devname); | |
4764 | else | |
4765 | fprintf(stderr, " (IMSM).\n"); | |
4766 | return 3; | |
4767 | } | |
e2f41b2c AK |
4768 | } |
4769 | ||
cdddbdbc DW |
4770 | return 0; |
4771 | } | |
4772 | ||
ef6ffade DW |
4773 | static __u16 info_to_blocks_per_strip(mdu_array_info_t *info) |
4774 | { | |
4775 | if (info->level == 1) | |
4776 | return 128; | |
4777 | return info->chunk_size >> 9; | |
4778 | } | |
4779 | ||
5551b113 CA |
4780 | static unsigned long long info_to_blocks_per_member(mdu_array_info_t *info, |
4781 | unsigned long long size) | |
fcfd9599 | 4782 | { |
4025c288 | 4783 | if (info->level == 1) |
5551b113 | 4784 | return size * 2; |
4025c288 | 4785 | else |
5551b113 | 4786 | return (size * 2) & ~(info_to_blocks_per_strip(info) - 1); |
fcfd9599 DW |
4787 | } |
4788 | ||
4d1313e9 DW |
4789 | static void imsm_update_version_info(struct intel_super *super) |
4790 | { | |
4791 | /* update the version and attributes */ | |
4792 | struct imsm_super *mpb = super->anchor; | |
4793 | char *version; | |
4794 | struct imsm_dev *dev; | |
4795 | struct imsm_map *map; | |
4796 | int i; | |
4797 | ||
4798 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
4799 | dev = get_imsm_dev(super, i); | |
238c0a71 | 4800 | map = get_imsm_map(dev, MAP_0); |
4d1313e9 DW |
4801 | if (__le32_to_cpu(dev->size_high) > 0) |
4802 | mpb->attributes |= MPB_ATTRIB_2TB; | |
4803 | ||
4804 | /* FIXME detect when an array spans a port multiplier */ | |
4805 | #if 0 | |
4806 | mpb->attributes |= MPB_ATTRIB_PM; | |
4807 | #endif | |
4808 | ||
4809 | if (mpb->num_raid_devs > 1 || | |
4810 | mpb->attributes != MPB_ATTRIB_CHECKSUM_VERIFY) { | |
4811 | version = MPB_VERSION_ATTRIBS; | |
4812 | switch (get_imsm_raid_level(map)) { | |
4813 | case 0: mpb->attributes |= MPB_ATTRIB_RAID0; break; | |
4814 | case 1: mpb->attributes |= MPB_ATTRIB_RAID1; break; | |
4815 | case 10: mpb->attributes |= MPB_ATTRIB_RAID10; break; | |
4816 | case 5: mpb->attributes |= MPB_ATTRIB_RAID5; break; | |
4817 | } | |
4818 | } else { | |
4819 | if (map->num_members >= 5) | |
4820 | version = MPB_VERSION_5OR6_DISK_ARRAY; | |
4821 | else if (dev->status == DEV_CLONE_N_GO) | |
4822 | version = MPB_VERSION_CNG; | |
4823 | else if (get_imsm_raid_level(map) == 5) | |
4824 | version = MPB_VERSION_RAID5; | |
4825 | else if (map->num_members >= 3) | |
4826 | version = MPB_VERSION_3OR4_DISK_ARRAY; | |
4827 | else if (get_imsm_raid_level(map) == 1) | |
4828 | version = MPB_VERSION_RAID1; | |
4829 | else | |
4830 | version = MPB_VERSION_RAID0; | |
4831 | } | |
4832 | strcpy(((char *) mpb->sig) + strlen(MPB_SIGNATURE), version); | |
4833 | } | |
4834 | } | |
4835 | ||
aa534678 DW |
4836 | static int check_name(struct intel_super *super, char *name, int quiet) |
4837 | { | |
4838 | struct imsm_super *mpb = super->anchor; | |
4839 | char *reason = NULL; | |
4840 | int i; | |
4841 | ||
4842 | if (strlen(name) > MAX_RAID_SERIAL_LEN) | |
4843 | reason = "must be 16 characters or less"; | |
4844 | ||
4845 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
4846 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
4847 | ||
4848 | if (strncmp((char *) dev->volume, name, MAX_RAID_SERIAL_LEN) == 0) { | |
4849 | reason = "already exists"; | |
4850 | break; | |
4851 | } | |
4852 | } | |
4853 | ||
4854 | if (reason && !quiet) | |
e7b84f9d | 4855 | pr_err("imsm volume name %s\n", reason); |
aa534678 DW |
4856 | |
4857 | return !reason; | |
4858 | } | |
4859 | ||
8b353278 DW |
4860 | static int init_super_imsm_volume(struct supertype *st, mdu_array_info_t *info, |
4861 | unsigned long long size, char *name, | |
83cd1e97 N |
4862 | char *homehost, int *uuid, |
4863 | long long data_offset) | |
cdddbdbc | 4864 | { |
c2c087e6 DW |
4865 | /* We are creating a volume inside a pre-existing container. |
4866 | * so st->sb is already set. | |
4867 | */ | |
4868 | struct intel_super *super = st->sb; | |
f36a9ecd | 4869 | unsigned int sector_size = super->sector_size; |
949c47a0 | 4870 | struct imsm_super *mpb = super->anchor; |
ba2de7ba | 4871 | struct intel_dev *dv; |
c2c087e6 DW |
4872 | struct imsm_dev *dev; |
4873 | struct imsm_vol *vol; | |
4874 | struct imsm_map *map; | |
4875 | int idx = mpb->num_raid_devs; | |
4876 | int i; | |
4877 | unsigned long long array_blocks; | |
2c092cad | 4878 | size_t size_old, size_new; |
5551b113 | 4879 | unsigned long long num_data_stripes; |
cdddbdbc | 4880 | |
88c32bb1 | 4881 | if (super->orom && mpb->num_raid_devs >= super->orom->vpa) { |
7a862a02 | 4882 | pr_err("This imsm-container already has the maximum of %d volumes\n", super->orom->vpa); |
c2c087e6 DW |
4883 | return 0; |
4884 | } | |
4885 | ||
2c092cad DW |
4886 | /* ensure the mpb is large enough for the new data */ |
4887 | size_old = __le32_to_cpu(mpb->mpb_size); | |
4888 | size_new = disks_to_mpb_size(info->nr_disks); | |
4889 | if (size_new > size_old) { | |
4890 | void *mpb_new; | |
f36a9ecd | 4891 | size_t size_round = ROUND_UP(size_new, sector_size); |
2c092cad | 4892 | |
f36a9ecd | 4893 | if (posix_memalign(&mpb_new, sector_size, size_round) != 0) { |
e7b84f9d | 4894 | pr_err("could not allocate new mpb\n"); |
2c092cad DW |
4895 | return 0; |
4896 | } | |
de44e46f PB |
4897 | if (posix_memalign(&super->migr_rec_buf, sector_size, |
4898 | MIGR_REC_BUF_SECTORS*sector_size) != 0) { | |
1ade5cc1 | 4899 | pr_err("could not allocate migr_rec buffer\n"); |
8e59f3d8 AK |
4900 | free(super->buf); |
4901 | free(super); | |
ea944c8f | 4902 | free(mpb_new); |
8e59f3d8 AK |
4903 | return 0; |
4904 | } | |
2c092cad DW |
4905 | memcpy(mpb_new, mpb, size_old); |
4906 | free(mpb); | |
4907 | mpb = mpb_new; | |
949c47a0 | 4908 | super->anchor = mpb_new; |
2c092cad DW |
4909 | mpb->mpb_size = __cpu_to_le32(size_new); |
4910 | memset(mpb_new + size_old, 0, size_round - size_old); | |
4911 | } | |
bf5a934a | 4912 | super->current_vol = idx; |
3960e579 DW |
4913 | |
4914 | /* handle 'failed_disks' by either: | |
4915 | * a) create dummy disk entries in the table if this the first | |
4916 | * volume in the array. We add them here as this is the only | |
4917 | * opportunity to add them. add_to_super_imsm_volume() | |
4918 | * handles the non-failed disks and continues incrementing | |
4919 | * mpb->num_disks. | |
4920 | * b) validate that 'failed_disks' matches the current number | |
4921 | * of missing disks if the container is populated | |
d23fe947 | 4922 | */ |
3960e579 | 4923 | if (super->current_vol == 0) { |
d23fe947 | 4924 | mpb->num_disks = 0; |
3960e579 DW |
4925 | for (i = 0; i < info->failed_disks; i++) { |
4926 | struct imsm_disk *disk; | |
4927 | ||
4928 | mpb->num_disks++; | |
4929 | disk = __get_imsm_disk(mpb, i); | |
4930 | disk->status = CONFIGURED_DISK | FAILED_DISK; | |
4931 | disk->scsi_id = __cpu_to_le32(~(__u32)0); | |
4932 | snprintf((char *) disk->serial, MAX_RAID_SERIAL_LEN, | |
4933 | "missing:%d", i); | |
4934 | } | |
4935 | find_missing(super); | |
4936 | } else { | |
4937 | int missing = 0; | |
4938 | struct dl *d; | |
4939 | ||
4940 | for (d = super->missing; d; d = d->next) | |
4941 | missing++; | |
4942 | if (info->failed_disks > missing) { | |
e7b84f9d | 4943 | pr_err("unable to add 'missing' disk to container\n"); |
3960e579 DW |
4944 | return 0; |
4945 | } | |
4946 | } | |
5a038140 | 4947 | |
aa534678 DW |
4948 | if (!check_name(super, name, 0)) |
4949 | return 0; | |
503975b9 N |
4950 | dv = xmalloc(sizeof(*dv)); |
4951 | dev = xcalloc(1, sizeof(*dev) + sizeof(__u32) * (info->raid_disks - 1)); | |
c2c087e6 | 4952 | strncpy((char *) dev->volume, name, MAX_RAID_SERIAL_LEN); |
e03640bd | 4953 | array_blocks = calc_array_size(info->level, info->raid_disks, |
03bcbc65 | 4954 | info->layout, info->chunk_size, |
5551b113 | 4955 | size * 2); |
979d38be DW |
4956 | /* round array size down to closest MB */ |
4957 | array_blocks = (array_blocks >> SECT_PER_MB_SHIFT) << SECT_PER_MB_SHIFT; | |
4958 | ||
c2c087e6 DW |
4959 | dev->size_low = __cpu_to_le32((__u32) array_blocks); |
4960 | dev->size_high = __cpu_to_le32((__u32) (array_blocks >> 32)); | |
1a2487c2 | 4961 | dev->status = (DEV_READ_COALESCING | DEV_WRITE_COALESCING); |
c2c087e6 DW |
4962 | vol = &dev->vol; |
4963 | vol->migr_state = 0; | |
1484e727 | 4964 | set_migr_type(dev, MIGR_INIT); |
3960e579 | 4965 | vol->dirty = !info->state; |
f8f603f1 | 4966 | vol->curr_migr_unit = 0; |
238c0a71 | 4967 | map = get_imsm_map(dev, MAP_0); |
5551b113 CA |
4968 | set_pba_of_lba0(map, super->create_offset); |
4969 | set_blocks_per_member(map, info_to_blocks_per_member(info, size)); | |
ef6ffade | 4970 | map->blocks_per_strip = __cpu_to_le16(info_to_blocks_per_strip(info)); |
0556e1a2 | 4971 | map->failed_disk_num = ~0; |
bf4442ab | 4972 | if (info->level > 0) |
fffaf1ff N |
4973 | map->map_state = (info->state ? IMSM_T_STATE_NORMAL |
4974 | : IMSM_T_STATE_UNINITIALIZED); | |
bf4442ab AK |
4975 | else |
4976 | map->map_state = info->failed_disks ? IMSM_T_STATE_FAILED : | |
4977 | IMSM_T_STATE_NORMAL; | |
252d23c0 | 4978 | map->ddf = 1; |
ef6ffade DW |
4979 | |
4980 | if (info->level == 1 && info->raid_disks > 2) { | |
38950822 AW |
4981 | free(dev); |
4982 | free(dv); | |
7a862a02 | 4983 | pr_err("imsm does not support more than 2 disksin a raid1 volume\n"); |
ef6ffade DW |
4984 | return 0; |
4985 | } | |
81062a36 DW |
4986 | |
4987 | map->raid_level = info->level; | |
4d1313e9 | 4988 | if (info->level == 10) { |
c2c087e6 | 4989 | map->raid_level = 1; |
4d1313e9 | 4990 | map->num_domains = info->raid_disks / 2; |
81062a36 DW |
4991 | } else if (info->level == 1) |
4992 | map->num_domains = info->raid_disks; | |
4993 | else | |
ff596308 | 4994 | map->num_domains = 1; |
81062a36 | 4995 | |
5551b113 CA |
4996 | /* info->size is only int so use the 'size' parameter instead */ |
4997 | num_data_stripes = (size * 2) / info_to_blocks_per_strip(info); | |
4998 | num_data_stripes /= map->num_domains; | |
4999 | set_num_data_stripes(map, num_data_stripes); | |
ef6ffade | 5000 | |
c2c087e6 DW |
5001 | map->num_members = info->raid_disks; |
5002 | for (i = 0; i < map->num_members; i++) { | |
5003 | /* initialized in add_to_super */ | |
4eb26970 | 5004 | set_imsm_ord_tbl_ent(map, i, IMSM_ORD_REBUILD); |
c2c087e6 | 5005 | } |
949c47a0 | 5006 | mpb->num_raid_devs++; |
ba2de7ba DW |
5007 | |
5008 | dv->dev = dev; | |
5009 | dv->index = super->current_vol; | |
5010 | dv->next = super->devlist; | |
5011 | super->devlist = dv; | |
c2c087e6 | 5012 | |
4d1313e9 DW |
5013 | imsm_update_version_info(super); |
5014 | ||
c2c087e6 | 5015 | return 1; |
cdddbdbc DW |
5016 | } |
5017 | ||
bf5a934a DW |
5018 | static int init_super_imsm(struct supertype *st, mdu_array_info_t *info, |
5019 | unsigned long long size, char *name, | |
83cd1e97 N |
5020 | char *homehost, int *uuid, |
5021 | unsigned long long data_offset) | |
bf5a934a DW |
5022 | { |
5023 | /* This is primarily called by Create when creating a new array. | |
5024 | * We will then get add_to_super called for each component, and then | |
5025 | * write_init_super called to write it out to each device. | |
5026 | * For IMSM, Create can create on fresh devices or on a pre-existing | |
5027 | * array. | |
5028 | * To create on a pre-existing array a different method will be called. | |
5029 | * This one is just for fresh drives. | |
5030 | */ | |
5031 | struct intel_super *super; | |
5032 | struct imsm_super *mpb; | |
5033 | size_t mpb_size; | |
4d1313e9 | 5034 | char *version; |
bf5a934a | 5035 | |
83cd1e97 | 5036 | if (data_offset != INVALID_SECTORS) { |
ed503f89 | 5037 | pr_err("data-offset not supported by imsm\n"); |
83cd1e97 N |
5038 | return 0; |
5039 | } | |
5040 | ||
bf5a934a | 5041 | if (st->sb) |
83cd1e97 N |
5042 | return init_super_imsm_volume(st, info, size, name, homehost, uuid, |
5043 | data_offset); | |
e683ca88 DW |
5044 | |
5045 | if (info) | |
5046 | mpb_size = disks_to_mpb_size(info->nr_disks); | |
5047 | else | |
f36a9ecd | 5048 | mpb_size = MAX_SECTOR_SIZE; |
bf5a934a | 5049 | |
49133e57 | 5050 | super = alloc_super(); |
f36a9ecd PB |
5051 | if (super && |
5052 | posix_memalign(&super->buf, MAX_SECTOR_SIZE, mpb_size) != 0) { | |
bf5a934a | 5053 | free(super); |
e683ca88 DW |
5054 | super = NULL; |
5055 | } | |
5056 | if (!super) { | |
1ade5cc1 | 5057 | pr_err("could not allocate superblock\n"); |
bf5a934a DW |
5058 | return 0; |
5059 | } | |
de44e46f PB |
5060 | if (posix_memalign(&super->migr_rec_buf, MAX_SECTOR_SIZE, |
5061 | MIGR_REC_BUF_SECTORS*MAX_SECTOR_SIZE) != 0) { | |
1ade5cc1 | 5062 | pr_err("could not allocate migr_rec buffer\n"); |
8e59f3d8 AK |
5063 | free(super->buf); |
5064 | free(super); | |
5065 | return 0; | |
5066 | } | |
e683ca88 | 5067 | memset(super->buf, 0, mpb_size); |
ef649044 | 5068 | mpb = super->buf; |
e683ca88 DW |
5069 | mpb->mpb_size = __cpu_to_le32(mpb_size); |
5070 | st->sb = super; | |
5071 | ||
5072 | if (info == NULL) { | |
5073 | /* zeroing superblock */ | |
5074 | return 0; | |
5075 | } | |
bf5a934a | 5076 | |
4d1313e9 DW |
5077 | mpb->attributes = MPB_ATTRIB_CHECKSUM_VERIFY; |
5078 | ||
5079 | version = (char *) mpb->sig; | |
5080 | strcpy(version, MPB_SIGNATURE); | |
5081 | version += strlen(MPB_SIGNATURE); | |
5082 | strcpy(version, MPB_VERSION_RAID0); | |
bf5a934a | 5083 | |
bf5a934a DW |
5084 | return 1; |
5085 | } | |
5086 | ||
0e600426 | 5087 | #ifndef MDASSEMBLE |
f20c3968 | 5088 | static int add_to_super_imsm_volume(struct supertype *st, mdu_disk_info_t *dk, |
bf5a934a DW |
5089 | int fd, char *devname) |
5090 | { | |
5091 | struct intel_super *super = st->sb; | |
d23fe947 | 5092 | struct imsm_super *mpb = super->anchor; |
3960e579 | 5093 | struct imsm_disk *_disk; |
bf5a934a DW |
5094 | struct imsm_dev *dev; |
5095 | struct imsm_map *map; | |
3960e579 | 5096 | struct dl *dl, *df; |
4eb26970 | 5097 | int slot; |
bf5a934a | 5098 | |
949c47a0 | 5099 | dev = get_imsm_dev(super, super->current_vol); |
238c0a71 | 5100 | map = get_imsm_map(dev, MAP_0); |
bf5a934a | 5101 | |
208933a7 | 5102 | if (! (dk->state & (1<<MD_DISK_SYNC))) { |
e7b84f9d | 5103 | pr_err("%s: Cannot add spare devices to IMSM volume\n", |
208933a7 N |
5104 | devname); |
5105 | return 1; | |
5106 | } | |
5107 | ||
efb30e7f DW |
5108 | if (fd == -1) { |
5109 | /* we're doing autolayout so grab the pre-marked (in | |
5110 | * validate_geometry) raid_disk | |
5111 | */ | |
5112 | for (dl = super->disks; dl; dl = dl->next) | |
5113 | if (dl->raiddisk == dk->raid_disk) | |
5114 | break; | |
5115 | } else { | |
5116 | for (dl = super->disks; dl ; dl = dl->next) | |
5117 | if (dl->major == dk->major && | |
5118 | dl->minor == dk->minor) | |
5119 | break; | |
5120 | } | |
d23fe947 | 5121 | |
208933a7 | 5122 | if (!dl) { |
e7b84f9d | 5123 | pr_err("%s is not a member of the same container\n", devname); |
f20c3968 | 5124 | return 1; |
208933a7 | 5125 | } |
bf5a934a | 5126 | |
d23fe947 DW |
5127 | /* add a pristine spare to the metadata */ |
5128 | if (dl->index < 0) { | |
5129 | dl->index = super->anchor->num_disks; | |
5130 | super->anchor->num_disks++; | |
5131 | } | |
4eb26970 DW |
5132 | /* Check the device has not already been added */ |
5133 | slot = get_imsm_disk_slot(map, dl->index); | |
5134 | if (slot >= 0 && | |
238c0a71 | 5135 | (get_imsm_ord_tbl_ent(dev, slot, MAP_X) & IMSM_ORD_REBUILD) == 0) { |
e7b84f9d | 5136 | pr_err("%s has been included in this array twice\n", |
4eb26970 DW |
5137 | devname); |
5138 | return 1; | |
5139 | } | |
656b6b5a | 5140 | set_imsm_ord_tbl_ent(map, dk->raid_disk, dl->index); |
ee5aad5a | 5141 | dl->disk.status = CONFIGURED_DISK; |
d23fe947 | 5142 | |
3960e579 DW |
5143 | /* update size of 'missing' disks to be at least as large as the |
5144 | * largest acitve member (we only have dummy missing disks when | |
5145 | * creating the first volume) | |
5146 | */ | |
5147 | if (super->current_vol == 0) { | |
5148 | for (df = super->missing; df; df = df->next) { | |
5551b113 CA |
5149 | if (total_blocks(&dl->disk) > total_blocks(&df->disk)) |
5150 | set_total_blocks(&df->disk, total_blocks(&dl->disk)); | |
3960e579 DW |
5151 | _disk = __get_imsm_disk(mpb, df->index); |
5152 | *_disk = df->disk; | |
5153 | } | |
5154 | } | |
5155 | ||
5156 | /* refresh unset/failed slots to point to valid 'missing' entries */ | |
5157 | for (df = super->missing; df; df = df->next) | |
5158 | for (slot = 0; slot < mpb->num_disks; slot++) { | |
238c0a71 | 5159 | __u32 ord = get_imsm_ord_tbl_ent(dev, slot, MAP_X); |
3960e579 DW |
5160 | |
5161 | if ((ord & IMSM_ORD_REBUILD) == 0) | |
5162 | continue; | |
5163 | set_imsm_ord_tbl_ent(map, slot, df->index | IMSM_ORD_REBUILD); | |
1ace8403 | 5164 | if (is_gen_migration(dev)) { |
238c0a71 AK |
5165 | struct imsm_map *map2 = get_imsm_map(dev, |
5166 | MAP_1); | |
0a108d63 | 5167 | int slot2 = get_imsm_disk_slot(map2, df->index); |
089f9d79 | 5168 | if (slot2 < map2->num_members && slot2 >= 0) { |
1ace8403 | 5169 | __u32 ord2 = get_imsm_ord_tbl_ent(dev, |
238c0a71 AK |
5170 | slot2, |
5171 | MAP_1); | |
1ace8403 AK |
5172 | if ((unsigned)df->index == |
5173 | ord_to_idx(ord2)) | |
5174 | set_imsm_ord_tbl_ent(map2, | |
0a108d63 | 5175 | slot2, |
1ace8403 AK |
5176 | df->index | |
5177 | IMSM_ORD_REBUILD); | |
5178 | } | |
5179 | } | |
3960e579 DW |
5180 | dprintf("set slot:%d to missing disk:%d\n", slot, df->index); |
5181 | break; | |
5182 | } | |
5183 | ||
d23fe947 DW |
5184 | /* if we are creating the first raid device update the family number */ |
5185 | if (super->current_vol == 0) { | |
5186 | __u32 sum; | |
5187 | struct imsm_dev *_dev = __get_imsm_dev(mpb, 0); | |
d23fe947 | 5188 | |
3960e579 | 5189 | _disk = __get_imsm_disk(mpb, dl->index); |
791b666a | 5190 | if (!_dev || !_disk) { |
e7b84f9d | 5191 | pr_err("BUG mpb setup error\n"); |
791b666a AW |
5192 | return 1; |
5193 | } | |
d23fe947 DW |
5194 | *_dev = *dev; |
5195 | *_disk = dl->disk; | |
148acb7b DW |
5196 | sum = random32(); |
5197 | sum += __gen_imsm_checksum(mpb); | |
d23fe947 | 5198 | mpb->family_num = __cpu_to_le32(sum); |
148acb7b | 5199 | mpb->orig_family_num = mpb->family_num; |
d23fe947 | 5200 | } |
ca0748fa | 5201 | super->current_disk = dl; |
f20c3968 | 5202 | return 0; |
bf5a934a DW |
5203 | } |
5204 | ||
a8619d23 AK |
5205 | /* mark_spare() |
5206 | * Function marks disk as spare and restores disk serial | |
5207 | * in case it was previously marked as failed by takeover operation | |
5208 | * reruns: | |
5209 | * -1 : critical error | |
5210 | * 0 : disk is marked as spare but serial is not set | |
5211 | * 1 : success | |
5212 | */ | |
5213 | int mark_spare(struct dl *disk) | |
5214 | { | |
5215 | __u8 serial[MAX_RAID_SERIAL_LEN]; | |
5216 | int ret_val = -1; | |
5217 | ||
5218 | if (!disk) | |
5219 | return ret_val; | |
5220 | ||
5221 | ret_val = 0; | |
5222 | if (!imsm_read_serial(disk->fd, NULL, serial)) { | |
5223 | /* Restore disk serial number, because takeover marks disk | |
5224 | * as failed and adds to serial ':0' before it becomes | |
5225 | * a spare disk. | |
5226 | */ | |
5227 | serialcpy(disk->serial, serial); | |
5228 | serialcpy(disk->disk.serial, serial); | |
5229 | ret_val = 1; | |
5230 | } | |
5231 | disk->disk.status = SPARE_DISK; | |
5232 | disk->index = -1; | |
5233 | ||
5234 | return ret_val; | |
5235 | } | |
88654014 | 5236 | |
f20c3968 | 5237 | static int add_to_super_imsm(struct supertype *st, mdu_disk_info_t *dk, |
72ca9bcf N |
5238 | int fd, char *devname, |
5239 | unsigned long long data_offset) | |
cdddbdbc | 5240 | { |
c2c087e6 | 5241 | struct intel_super *super = st->sb; |
c2c087e6 DW |
5242 | struct dl *dd; |
5243 | unsigned long long size; | |
fa7bb6f8 | 5244 | unsigned int member_sector_size; |
f2f27e63 | 5245 | __u32 id; |
c2c087e6 DW |
5246 | int rv; |
5247 | struct stat stb; | |
5248 | ||
88654014 LM |
5249 | /* If we are on an RAID enabled platform check that the disk is |
5250 | * attached to the raid controller. | |
5251 | * We do not need to test disks attachment for container based additions, | |
5252 | * they shall be already tested when container was created/assembled. | |
88c32bb1 | 5253 | */ |
d424212e | 5254 | rv = find_intel_hba_capability(fd, super, devname); |
f2f5c343 | 5255 | /* no orom/efi or non-intel hba of the disk */ |
f0f5a016 LM |
5256 | if (rv != 0) { |
5257 | dprintf("capability: %p fd: %d ret: %d\n", | |
5258 | super->orom, fd, rv); | |
5259 | return 1; | |
88c32bb1 DW |
5260 | } |
5261 | ||
f20c3968 DW |
5262 | if (super->current_vol >= 0) |
5263 | return add_to_super_imsm_volume(st, dk, fd, devname); | |
bf5a934a | 5264 | |
c2c087e6 | 5265 | fstat(fd, &stb); |
503975b9 | 5266 | dd = xcalloc(sizeof(*dd), 1); |
c2c087e6 DW |
5267 | dd->major = major(stb.st_rdev); |
5268 | dd->minor = minor(stb.st_rdev); | |
503975b9 | 5269 | dd->devname = devname ? xstrdup(devname) : NULL; |
c2c087e6 | 5270 | dd->fd = fd; |
689c9bf3 | 5271 | dd->e = NULL; |
1a64be56 | 5272 | dd->action = DISK_ADD; |
c2c087e6 | 5273 | rv = imsm_read_serial(fd, devname, dd->serial); |
32ba9157 | 5274 | if (rv) { |
e7b84f9d | 5275 | pr_err("failed to retrieve scsi serial, aborting\n"); |
20bee0f8 PB |
5276 | if (dd->devname) |
5277 | free(dd->devname); | |
949c47a0 | 5278 | free(dd); |
0030e8d6 | 5279 | abort(); |
c2c087e6 | 5280 | } |
20bee0f8 PB |
5281 | if (super->hba && ((super->hba->type == SYS_DEV_NVME) || |
5282 | (super->hba->type == SYS_DEV_VMD))) { | |
5283 | int i; | |
5284 | char *devpath = diskfd_to_devpath(fd); | |
5285 | char controller_path[PATH_MAX]; | |
5286 | ||
5287 | if (!devpath) { | |
5288 | pr_err("failed to get devpath, aborting\n"); | |
5289 | if (dd->devname) | |
5290 | free(dd->devname); | |
5291 | free(dd); | |
5292 | return 1; | |
5293 | } | |
5294 | ||
5295 | snprintf(controller_path, PATH_MAX-1, "%s/device", devpath); | |
5296 | free(devpath); | |
5297 | ||
5298 | if (devpath_to_vendor(controller_path) == 0x8086) { | |
5299 | /* | |
5300 | * If Intel's NVMe drive has serial ended with | |
5301 | * "-A","-B","-1" or "-2" it means that this is "x8" | |
5302 | * device (double drive on single PCIe card). | |
5303 | * User should be warned about potential data loss. | |
5304 | */ | |
5305 | for (i = MAX_RAID_SERIAL_LEN-1; i > 0; i--) { | |
5306 | /* Skip empty character at the end */ | |
5307 | if (dd->serial[i] == 0) | |
5308 | continue; | |
5309 | ||
5310 | if (((dd->serial[i] == 'A') || | |
5311 | (dd->serial[i] == 'B') || | |
5312 | (dd->serial[i] == '1') || | |
5313 | (dd->serial[i] == '2')) && | |
5314 | (dd->serial[i-1] == '-')) | |
5315 | pr_err("\tThe action you are about to take may put your data at risk.\n" | |
5316 | "\tPlease note that x8 devices may consist of two separate x4 devices " | |
5317 | "located on a single PCIe port.\n" | |
5318 | "\tRAID 0 is the only supported configuration for this type of x8 device.\n"); | |
5319 | break; | |
5320 | } | |
5321 | } | |
5322 | } | |
c2c087e6 | 5323 | |
c2c087e6 | 5324 | get_dev_size(fd, NULL, &size); |
fa7bb6f8 PB |
5325 | get_dev_sector_size(fd, NULL, &member_sector_size); |
5326 | ||
5327 | if (super->sector_size == 0) { | |
5328 | /* this a first device, so sector_size is not set yet */ | |
5329 | super->sector_size = member_sector_size; | |
5330 | } else if (member_sector_size != super->sector_size) { | |
5331 | pr_err("Mixing between different sector size is forbidden, aborting...\n"); | |
5332 | if (dd->devname) | |
5333 | free(dd->devname); | |
5334 | free(dd); | |
5335 | return 1; | |
5336 | } | |
5337 | ||
71e5411e | 5338 | /* clear migr_rec when adding disk to container */ |
de44e46f PB |
5339 | memset(super->migr_rec_buf, 0, MIGR_REC_BUF_SECTORS*super->sector_size); |
5340 | if (lseek64(fd, size - MIGR_REC_SECTOR_POSITION*super->sector_size, | |
5341 | SEEK_SET) >= 0) { | |
71e5411e | 5342 | if (write(fd, super->migr_rec_buf, |
de44e46f PB |
5343 | MIGR_REC_BUF_SECTORS*super->sector_size) != |
5344 | MIGR_REC_BUF_SECTORS*super->sector_size) | |
71e5411e PB |
5345 | perror("Write migr_rec failed"); |
5346 | } | |
5347 | ||
c2c087e6 | 5348 | size /= 512; |
1f24f035 | 5349 | serialcpy(dd->disk.serial, dd->serial); |
5551b113 CA |
5350 | set_total_blocks(&dd->disk, size); |
5351 | if (__le32_to_cpu(dd->disk.total_blocks_hi) > 0) { | |
5352 | struct imsm_super *mpb = super->anchor; | |
5353 | mpb->attributes |= MPB_ATTRIB_2TB_DISK; | |
5354 | } | |
a8619d23 | 5355 | mark_spare(dd); |
c2c087e6 | 5356 | if (sysfs_disk_to_scsi_id(fd, &id) == 0) |
b9f594fe | 5357 | dd->disk.scsi_id = __cpu_to_le32(id); |
c2c087e6 | 5358 | else |
b9f594fe | 5359 | dd->disk.scsi_id = __cpu_to_le32(0); |
43dad3d6 DW |
5360 | |
5361 | if (st->update_tail) { | |
1a64be56 LM |
5362 | dd->next = super->disk_mgmt_list; |
5363 | super->disk_mgmt_list = dd; | |
43dad3d6 DW |
5364 | } else { |
5365 | dd->next = super->disks; | |
5366 | super->disks = dd; | |
ceaf0ee1 | 5367 | super->updates_pending++; |
43dad3d6 | 5368 | } |
f20c3968 DW |
5369 | |
5370 | return 0; | |
cdddbdbc DW |
5371 | } |
5372 | ||
1a64be56 LM |
5373 | static int remove_from_super_imsm(struct supertype *st, mdu_disk_info_t *dk) |
5374 | { | |
5375 | struct intel_super *super = st->sb; | |
5376 | struct dl *dd; | |
5377 | ||
5378 | /* remove from super works only in mdmon - for communication | |
5379 | * manager - monitor. Check if communication memory buffer | |
5380 | * is prepared. | |
5381 | */ | |
5382 | if (!st->update_tail) { | |
1ade5cc1 | 5383 | pr_err("shall be used in mdmon context only\n"); |
1a64be56 LM |
5384 | return 1; |
5385 | } | |
503975b9 | 5386 | dd = xcalloc(1, sizeof(*dd)); |
1a64be56 LM |
5387 | dd->major = dk->major; |
5388 | dd->minor = dk->minor; | |
1a64be56 | 5389 | dd->fd = -1; |
a8619d23 | 5390 | mark_spare(dd); |
1a64be56 LM |
5391 | dd->action = DISK_REMOVE; |
5392 | ||
5393 | dd->next = super->disk_mgmt_list; | |
5394 | super->disk_mgmt_list = dd; | |
5395 | ||
1a64be56 LM |
5396 | return 0; |
5397 | } | |
5398 | ||
f796af5d DW |
5399 | static int store_imsm_mpb(int fd, struct imsm_super *mpb); |
5400 | ||
5401 | static union { | |
f36a9ecd | 5402 | char buf[MAX_SECTOR_SIZE]; |
f796af5d | 5403 | struct imsm_super anchor; |
f36a9ecd | 5404 | } spare_record __attribute__ ((aligned(MAX_SECTOR_SIZE))); |
c2c087e6 | 5405 | |
d23fe947 DW |
5406 | /* spare records have their own family number and do not have any defined raid |
5407 | * devices | |
5408 | */ | |
5409 | static int write_super_imsm_spares(struct intel_super *super, int doclose) | |
5410 | { | |
d23fe947 | 5411 | struct imsm_super *mpb = super->anchor; |
f796af5d | 5412 | struct imsm_super *spare = &spare_record.anchor; |
d23fe947 DW |
5413 | __u32 sum; |
5414 | struct dl *d; | |
5415 | ||
68641cdb JS |
5416 | spare->mpb_size = __cpu_to_le32(sizeof(struct imsm_super)); |
5417 | spare->generation_num = __cpu_to_le32(1UL); | |
f796af5d | 5418 | spare->attributes = MPB_ATTRIB_CHECKSUM_VERIFY; |
68641cdb JS |
5419 | spare->num_disks = 1; |
5420 | spare->num_raid_devs = 0; | |
5421 | spare->cache_size = mpb->cache_size; | |
5422 | spare->pwr_cycle_count = __cpu_to_le32(1); | |
f796af5d DW |
5423 | |
5424 | snprintf((char *) spare->sig, MAX_SIGNATURE_LENGTH, | |
5425 | MPB_SIGNATURE MPB_VERSION_RAID0); | |
d23fe947 DW |
5426 | |
5427 | for (d = super->disks; d; d = d->next) { | |
8796fdc4 | 5428 | if (d->index != -1) |
d23fe947 DW |
5429 | continue; |
5430 | ||
f796af5d | 5431 | spare->disk[0] = d->disk; |
027c374f CA |
5432 | if (__le32_to_cpu(d->disk.total_blocks_hi) > 0) |
5433 | spare->attributes |= MPB_ATTRIB_2TB_DISK; | |
5434 | ||
f36a9ecd PB |
5435 | if (super->sector_size == 4096) |
5436 | convert_to_4k_imsm_disk(&spare->disk[0]); | |
5437 | ||
f796af5d DW |
5438 | sum = __gen_imsm_checksum(spare); |
5439 | spare->family_num = __cpu_to_le32(sum); | |
5440 | spare->orig_family_num = 0; | |
5441 | sum = __gen_imsm_checksum(spare); | |
5442 | spare->check_sum = __cpu_to_le32(sum); | |
d23fe947 | 5443 | |
f796af5d | 5444 | if (store_imsm_mpb(d->fd, spare)) { |
1ade5cc1 N |
5445 | pr_err("failed for device %d:%d %s\n", |
5446 | d->major, d->minor, strerror(errno)); | |
e74255d9 | 5447 | return 1; |
d23fe947 DW |
5448 | } |
5449 | if (doclose) { | |
5450 | close(d->fd); | |
5451 | d->fd = -1; | |
5452 | } | |
5453 | } | |
5454 | ||
e74255d9 | 5455 | return 0; |
d23fe947 DW |
5456 | } |
5457 | ||
36988a3d | 5458 | static int write_super_imsm(struct supertype *st, int doclose) |
cdddbdbc | 5459 | { |
36988a3d | 5460 | struct intel_super *super = st->sb; |
f36a9ecd | 5461 | unsigned int sector_size = super->sector_size; |
949c47a0 | 5462 | struct imsm_super *mpb = super->anchor; |
c2c087e6 DW |
5463 | struct dl *d; |
5464 | __u32 generation; | |
5465 | __u32 sum; | |
d23fe947 | 5466 | int spares = 0; |
949c47a0 | 5467 | int i; |
a48ac0a8 | 5468 | __u32 mpb_size = sizeof(struct imsm_super) - sizeof(struct imsm_disk); |
36988a3d | 5469 | int num_disks = 0; |
146c6260 | 5470 | int clear_migration_record = 1; |
cdddbdbc | 5471 | |
c2c087e6 DW |
5472 | /* 'generation' is incremented everytime the metadata is written */ |
5473 | generation = __le32_to_cpu(mpb->generation_num); | |
5474 | generation++; | |
5475 | mpb->generation_num = __cpu_to_le32(generation); | |
5476 | ||
148acb7b DW |
5477 | /* fix up cases where previous mdadm releases failed to set |
5478 | * orig_family_num | |
5479 | */ | |
5480 | if (mpb->orig_family_num == 0) | |
5481 | mpb->orig_family_num = mpb->family_num; | |
5482 | ||
d23fe947 | 5483 | for (d = super->disks; d; d = d->next) { |
8796fdc4 | 5484 | if (d->index == -1) |
d23fe947 | 5485 | spares++; |
36988a3d | 5486 | else { |
d23fe947 | 5487 | mpb->disk[d->index] = d->disk; |
36988a3d AK |
5488 | num_disks++; |
5489 | } | |
d23fe947 | 5490 | } |
36988a3d | 5491 | for (d = super->missing; d; d = d->next) { |
47ee5a45 | 5492 | mpb->disk[d->index] = d->disk; |
36988a3d AK |
5493 | num_disks++; |
5494 | } | |
5495 | mpb->num_disks = num_disks; | |
5496 | mpb_size += sizeof(struct imsm_disk) * mpb->num_disks; | |
b9f594fe | 5497 | |
949c47a0 DW |
5498 | for (i = 0; i < mpb->num_raid_devs; i++) { |
5499 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
36988a3d AK |
5500 | struct imsm_dev *dev2 = get_imsm_dev(super, i); |
5501 | if (dev && dev2) { | |
5502 | imsm_copy_dev(dev, dev2); | |
5503 | mpb_size += sizeof_imsm_dev(dev, 0); | |
5504 | } | |
146c6260 AK |
5505 | if (is_gen_migration(dev2)) |
5506 | clear_migration_record = 0; | |
949c47a0 | 5507 | } |
a48ac0a8 DW |
5508 | mpb_size += __le32_to_cpu(mpb->bbm_log_size); |
5509 | mpb->mpb_size = __cpu_to_le32(mpb_size); | |
949c47a0 | 5510 | |
c2c087e6 | 5511 | /* recalculate checksum */ |
949c47a0 | 5512 | sum = __gen_imsm_checksum(mpb); |
c2c087e6 DW |
5513 | mpb->check_sum = __cpu_to_le32(sum); |
5514 | ||
51d83f5d AK |
5515 | if (super->clean_migration_record_by_mdmon) { |
5516 | clear_migration_record = 1; | |
5517 | super->clean_migration_record_by_mdmon = 0; | |
5518 | } | |
146c6260 | 5519 | if (clear_migration_record) |
de44e46f PB |
5520 | memset(super->migr_rec_buf, 0, |
5521 | MIGR_REC_BUF_SECTORS*sector_size); | |
146c6260 | 5522 | |
f36a9ecd PB |
5523 | if (sector_size == 4096) |
5524 | convert_to_4k(super); | |
5525 | ||
d23fe947 | 5526 | /* write the mpb for disks that compose raid devices */ |
c2c087e6 | 5527 | for (d = super->disks; d ; d = d->next) { |
86c54047 | 5528 | if (d->index < 0 || is_failed(&d->disk)) |
d23fe947 | 5529 | continue; |
30602f53 | 5530 | |
146c6260 AK |
5531 | if (clear_migration_record) { |
5532 | unsigned long long dsize; | |
5533 | ||
5534 | get_dev_size(d->fd, NULL, &dsize); | |
de44e46f PB |
5535 | if (lseek64(d->fd, dsize - sector_size, |
5536 | SEEK_SET) >= 0) { | |
17a4eaf9 | 5537 | if (write(d->fd, super->migr_rec_buf, |
de44e46f PB |
5538 | MIGR_REC_BUF_SECTORS*sector_size) != |
5539 | MIGR_REC_BUF_SECTORS*sector_size) | |
9e2d750d | 5540 | perror("Write migr_rec failed"); |
146c6260 AK |
5541 | } |
5542 | } | |
51d83f5d AK |
5543 | |
5544 | if (store_imsm_mpb(d->fd, mpb)) | |
5545 | fprintf(stderr, | |
1ade5cc1 N |
5546 | "failed for device %d:%d (fd: %d)%s\n", |
5547 | d->major, d->minor, | |
51d83f5d AK |
5548 | d->fd, strerror(errno)); |
5549 | ||
c2c087e6 DW |
5550 | if (doclose) { |
5551 | close(d->fd); | |
5552 | d->fd = -1; | |
5553 | } | |
5554 | } | |
5555 | ||
d23fe947 DW |
5556 | if (spares) |
5557 | return write_super_imsm_spares(super, doclose); | |
5558 | ||
e74255d9 | 5559 | return 0; |
c2c087e6 DW |
5560 | } |
5561 | ||
9b1fb677 | 5562 | static int create_array(struct supertype *st, int dev_idx) |
43dad3d6 DW |
5563 | { |
5564 | size_t len; | |
5565 | struct imsm_update_create_array *u; | |
5566 | struct intel_super *super = st->sb; | |
9b1fb677 | 5567 | struct imsm_dev *dev = get_imsm_dev(super, dev_idx); |
238c0a71 | 5568 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
54c2c1ea DW |
5569 | struct disk_info *inf; |
5570 | struct imsm_disk *disk; | |
5571 | int i; | |
43dad3d6 | 5572 | |
54c2c1ea DW |
5573 | len = sizeof(*u) - sizeof(*dev) + sizeof_imsm_dev(dev, 0) + |
5574 | sizeof(*inf) * map->num_members; | |
503975b9 | 5575 | u = xmalloc(len); |
43dad3d6 | 5576 | u->type = update_create_array; |
9b1fb677 | 5577 | u->dev_idx = dev_idx; |
43dad3d6 | 5578 | imsm_copy_dev(&u->dev, dev); |
54c2c1ea DW |
5579 | inf = get_disk_info(u); |
5580 | for (i = 0; i < map->num_members; i++) { | |
238c0a71 | 5581 | int idx = get_imsm_disk_idx(dev, i, MAP_X); |
9b1fb677 | 5582 | |
54c2c1ea | 5583 | disk = get_imsm_disk(super, idx); |
1ca5c8e0 N |
5584 | if (!disk) |
5585 | disk = get_imsm_missing(super, idx); | |
54c2c1ea DW |
5586 | serialcpy(inf[i].serial, disk->serial); |
5587 | } | |
43dad3d6 DW |
5588 | append_metadata_update(st, u, len); |
5589 | ||
5590 | return 0; | |
5591 | } | |
5592 | ||
1a64be56 | 5593 | static int mgmt_disk(struct supertype *st) |
43dad3d6 DW |
5594 | { |
5595 | struct intel_super *super = st->sb; | |
5596 | size_t len; | |
1a64be56 | 5597 | struct imsm_update_add_remove_disk *u; |
43dad3d6 | 5598 | |
1a64be56 | 5599 | if (!super->disk_mgmt_list) |
43dad3d6 DW |
5600 | return 0; |
5601 | ||
5602 | len = sizeof(*u); | |
503975b9 | 5603 | u = xmalloc(len); |
1a64be56 | 5604 | u->type = update_add_remove_disk; |
43dad3d6 DW |
5605 | append_metadata_update(st, u, len); |
5606 | ||
5607 | return 0; | |
5608 | } | |
5609 | ||
c2c087e6 DW |
5610 | static int write_init_super_imsm(struct supertype *st) |
5611 | { | |
9b1fb677 DW |
5612 | struct intel_super *super = st->sb; |
5613 | int current_vol = super->current_vol; | |
5614 | ||
5615 | /* we are done with current_vol reset it to point st at the container */ | |
5616 | super->current_vol = -1; | |
5617 | ||
8273f55e | 5618 | if (st->update_tail) { |
43dad3d6 DW |
5619 | /* queue the recently created array / added disk |
5620 | * as a metadata update */ | |
43dad3d6 | 5621 | int rv; |
8273f55e | 5622 | |
43dad3d6 | 5623 | /* determine if we are creating a volume or adding a disk */ |
9b1fb677 | 5624 | if (current_vol < 0) { |
1a64be56 LM |
5625 | /* in the mgmt (add/remove) disk case we are running |
5626 | * in mdmon context, so don't close fd's | |
43dad3d6 | 5627 | */ |
1a64be56 | 5628 | return mgmt_disk(st); |
43dad3d6 | 5629 | } else |
9b1fb677 | 5630 | rv = create_array(st, current_vol); |
8273f55e | 5631 | |
43dad3d6 | 5632 | return rv; |
d682f344 N |
5633 | } else { |
5634 | struct dl *d; | |
5635 | for (d = super->disks; d; d = d->next) | |
ba728be7 | 5636 | Kill(d->devname, NULL, 0, -1, 1); |
36988a3d | 5637 | return write_super_imsm(st, 1); |
d682f344 | 5638 | } |
cdddbdbc | 5639 | } |
0e600426 | 5640 | #endif |
cdddbdbc | 5641 | |
e683ca88 | 5642 | static int store_super_imsm(struct supertype *st, int fd) |
cdddbdbc | 5643 | { |
e683ca88 DW |
5644 | struct intel_super *super = st->sb; |
5645 | struct imsm_super *mpb = super ? super->anchor : NULL; | |
551c80c1 | 5646 | |
e683ca88 | 5647 | if (!mpb) |
ad97895e DW |
5648 | return 1; |
5649 | ||
1799c9e8 | 5650 | #ifndef MDASSEMBLE |
f36a9ecd PB |
5651 | if (super->sector_size == 4096) |
5652 | convert_to_4k(super); | |
e683ca88 | 5653 | return store_imsm_mpb(fd, mpb); |
1799c9e8 N |
5654 | #else |
5655 | return 1; | |
5656 | #endif | |
cdddbdbc DW |
5657 | } |
5658 | ||
0e600426 N |
5659 | static int imsm_bbm_log_size(struct imsm_super *mpb) |
5660 | { | |
5661 | return __le32_to_cpu(mpb->bbm_log_size); | |
5662 | } | |
5663 | ||
5664 | #ifndef MDASSEMBLE | |
cdddbdbc DW |
5665 | static int validate_geometry_imsm_container(struct supertype *st, int level, |
5666 | int layout, int raiddisks, int chunk, | |
af4348dd N |
5667 | unsigned long long size, |
5668 | unsigned long long data_offset, | |
5669 | char *dev, | |
2c514b71 NB |
5670 | unsigned long long *freesize, |
5671 | int verbose) | |
cdddbdbc | 5672 | { |
c2c087e6 DW |
5673 | int fd; |
5674 | unsigned long long ldsize; | |
594dc1b8 | 5675 | struct intel_super *super; |
f2f5c343 | 5676 | int rv = 0; |
cdddbdbc | 5677 | |
c2c087e6 DW |
5678 | if (level != LEVEL_CONTAINER) |
5679 | return 0; | |
5680 | if (!dev) | |
5681 | return 1; | |
5682 | ||
5683 | fd = open(dev, O_RDONLY|O_EXCL, 0); | |
5684 | if (fd < 0) { | |
ba728be7 | 5685 | if (verbose > 0) |
e7b84f9d | 5686 | pr_err("imsm: Cannot open %s: %s\n", |
2c514b71 | 5687 | dev, strerror(errno)); |
c2c087e6 DW |
5688 | return 0; |
5689 | } | |
5690 | if (!get_dev_size(fd, dev, &ldsize)) { | |
5691 | close(fd); | |
5692 | return 0; | |
5693 | } | |
f2f5c343 LM |
5694 | |
5695 | /* capabilities retrieve could be possible | |
5696 | * note that there is no fd for the disks in array. | |
5697 | */ | |
5698 | super = alloc_super(); | |
fa7bb6f8 PB |
5699 | if (!get_dev_sector_size(fd, NULL, &super->sector_size)) { |
5700 | close(fd); | |
5701 | free_imsm(super); | |
5702 | return 0; | |
5703 | } | |
5704 | ||
ba728be7 | 5705 | rv = find_intel_hba_capability(fd, super, verbose > 0 ? dev : NULL); |
f2f5c343 LM |
5706 | if (rv != 0) { |
5707 | #if DEBUG | |
5708 | char str[256]; | |
5709 | fd2devname(fd, str); | |
1ade5cc1 | 5710 | dprintf("fd: %d %s orom: %p rv: %d raiddisk: %d\n", |
f2f5c343 LM |
5711 | fd, str, super->orom, rv, raiddisks); |
5712 | #endif | |
5713 | /* no orom/efi or non-intel hba of the disk */ | |
5714 | close(fd); | |
5715 | free_imsm(super); | |
5716 | return 0; | |
5717 | } | |
c2c087e6 | 5718 | close(fd); |
9126b9a8 CA |
5719 | if (super->orom) { |
5720 | if (raiddisks > super->orom->tds) { | |
5721 | if (verbose) | |
7a862a02 | 5722 | pr_err("%d exceeds maximum number of platform supported disks: %d\n", |
9126b9a8 CA |
5723 | raiddisks, super->orom->tds); |
5724 | free_imsm(super); | |
5725 | return 0; | |
5726 | } | |
5727 | if ((super->orom->attr & IMSM_OROM_ATTR_2TB_DISK) == 0 && | |
5728 | (ldsize >> 9) >> 32 > 0) { | |
5729 | if (verbose) | |
e7b84f9d | 5730 | pr_err("%s exceeds maximum platform supported size\n", dev); |
9126b9a8 CA |
5731 | free_imsm(super); |
5732 | return 0; | |
5733 | } | |
f2f5c343 | 5734 | } |
c2c087e6 | 5735 | |
af4348dd | 5736 | *freesize = avail_size_imsm(st, ldsize >> 9, data_offset); |
f2f5c343 | 5737 | free_imsm(super); |
c2c087e6 DW |
5738 | |
5739 | return 1; | |
cdddbdbc DW |
5740 | } |
5741 | ||
0dcecb2e DW |
5742 | static unsigned long long find_size(struct extent *e, int *idx, int num_extents) |
5743 | { | |
5744 | const unsigned long long base_start = e[*idx].start; | |
5745 | unsigned long long end = base_start + e[*idx].size; | |
5746 | int i; | |
5747 | ||
5748 | if (base_start == end) | |
5749 | return 0; | |
5750 | ||
5751 | *idx = *idx + 1; | |
5752 | for (i = *idx; i < num_extents; i++) { | |
5753 | /* extend overlapping extents */ | |
5754 | if (e[i].start >= base_start && | |
5755 | e[i].start <= end) { | |
5756 | if (e[i].size == 0) | |
5757 | return 0; | |
5758 | if (e[i].start + e[i].size > end) | |
5759 | end = e[i].start + e[i].size; | |
5760 | } else if (e[i].start > end) { | |
5761 | *idx = i; | |
5762 | break; | |
5763 | } | |
5764 | } | |
5765 | ||
5766 | return end - base_start; | |
5767 | } | |
5768 | ||
5769 | static unsigned long long merge_extents(struct intel_super *super, int sum_extents) | |
5770 | { | |
5771 | /* build a composite disk with all known extents and generate a new | |
5772 | * 'maxsize' given the "all disks in an array must share a common start | |
5773 | * offset" constraint | |
5774 | */ | |
503975b9 | 5775 | struct extent *e = xcalloc(sum_extents, sizeof(*e)); |
0dcecb2e DW |
5776 | struct dl *dl; |
5777 | int i, j; | |
5778 | int start_extent; | |
5779 | unsigned long long pos; | |
b9d77223 | 5780 | unsigned long long start = 0; |
0dcecb2e DW |
5781 | unsigned long long maxsize; |
5782 | unsigned long reserve; | |
5783 | ||
0dcecb2e DW |
5784 | /* coalesce and sort all extents. also, check to see if we need to |
5785 | * reserve space between member arrays | |
5786 | */ | |
5787 | j = 0; | |
5788 | for (dl = super->disks; dl; dl = dl->next) { | |
5789 | if (!dl->e) | |
5790 | continue; | |
5791 | for (i = 0; i < dl->extent_cnt; i++) | |
5792 | e[j++] = dl->e[i]; | |
5793 | } | |
5794 | qsort(e, sum_extents, sizeof(*e), cmp_extent); | |
5795 | ||
5796 | /* merge extents */ | |
5797 | i = 0; | |
5798 | j = 0; | |
5799 | while (i < sum_extents) { | |
5800 | e[j].start = e[i].start; | |
5801 | e[j].size = find_size(e, &i, sum_extents); | |
5802 | j++; | |
5803 | if (e[j-1].size == 0) | |
5804 | break; | |
5805 | } | |
5806 | ||
5807 | pos = 0; | |
5808 | maxsize = 0; | |
5809 | start_extent = 0; | |
5810 | i = 0; | |
5811 | do { | |
5812 | unsigned long long esize; | |
5813 | ||
5814 | esize = e[i].start - pos; | |
5815 | if (esize >= maxsize) { | |
5816 | maxsize = esize; | |
5817 | start = pos; | |
5818 | start_extent = i; | |
5819 | } | |
5820 | pos = e[i].start + e[i].size; | |
5821 | i++; | |
5822 | } while (e[i-1].size); | |
5823 | free(e); | |
5824 | ||
a7dd165b DW |
5825 | if (maxsize == 0) |
5826 | return 0; | |
5827 | ||
5828 | /* FIXME assumes volume at offset 0 is the first volume in a | |
5829 | * container | |
5830 | */ | |
0dcecb2e DW |
5831 | if (start_extent > 0) |
5832 | reserve = IMSM_RESERVED_SECTORS; /* gap between raid regions */ | |
5833 | else | |
5834 | reserve = 0; | |
5835 | ||
5836 | if (maxsize < reserve) | |
a7dd165b | 5837 | return 0; |
0dcecb2e | 5838 | |
5551b113 | 5839 | super->create_offset = ~((unsigned long long) 0); |
0dcecb2e | 5840 | if (start + reserve > super->create_offset) |
a7dd165b | 5841 | return 0; /* start overflows create_offset */ |
0dcecb2e DW |
5842 | super->create_offset = start + reserve; |
5843 | ||
5844 | return maxsize - reserve; | |
5845 | } | |
5846 | ||
88c32bb1 DW |
5847 | static int is_raid_level_supported(const struct imsm_orom *orom, int level, int raiddisks) |
5848 | { | |
5849 | if (level < 0 || level == 6 || level == 4) | |
5850 | return 0; | |
5851 | ||
5852 | /* if we have an orom prevent invalid raid levels */ | |
5853 | if (orom) | |
5854 | switch (level) { | |
5855 | case 0: return imsm_orom_has_raid0(orom); | |
5856 | case 1: | |
5857 | if (raiddisks > 2) | |
5858 | return imsm_orom_has_raid1e(orom); | |
1c556e92 DW |
5859 | return imsm_orom_has_raid1(orom) && raiddisks == 2; |
5860 | case 10: return imsm_orom_has_raid10(orom) && raiddisks == 4; | |
5861 | case 5: return imsm_orom_has_raid5(orom) && raiddisks > 2; | |
88c32bb1 DW |
5862 | } |
5863 | else | |
5864 | return 1; /* not on an Intel RAID platform so anything goes */ | |
5865 | ||
5866 | return 0; | |
5867 | } | |
5868 | ||
ca9de185 LM |
5869 | static int |
5870 | active_arrays_by_format(char *name, char* hba, struct md_list **devlist, | |
5871 | int dpa, int verbose) | |
5872 | { | |
5873 | struct mdstat_ent *mdstat = mdstat_read(0, 0); | |
594dc1b8 | 5874 | struct mdstat_ent *memb; |
ca9de185 LM |
5875 | int count = 0; |
5876 | int num = 0; | |
594dc1b8 | 5877 | struct md_list *dv; |
ca9de185 LM |
5878 | int found; |
5879 | ||
5880 | for (memb = mdstat ; memb ; memb = memb->next) { | |
5881 | if (memb->metadata_version && | |
5882 | (strncmp(memb->metadata_version, "external:", 9) == 0) && | |
5883 | (strcmp(&memb->metadata_version[9], name) == 0) && | |
5884 | !is_subarray(memb->metadata_version+9) && | |
5885 | memb->members) { | |
5886 | struct dev_member *dev = memb->members; | |
5887 | int fd = -1; | |
5888 | while(dev && (fd < 0)) { | |
503975b9 N |
5889 | char *path = xmalloc(strlen(dev->name) + strlen("/dev/") + 1); |
5890 | num = sprintf(path, "%s%s", "/dev/", dev->name); | |
5891 | if (num > 0) | |
5892 | fd = open(path, O_RDONLY, 0); | |
089f9d79 | 5893 | if (num <= 0 || fd < 0) { |
676e87a8 | 5894 | pr_vrb("Cannot open %s: %s\n", |
503975b9 | 5895 | dev->name, strerror(errno)); |
ca9de185 | 5896 | } |
503975b9 | 5897 | free(path); |
ca9de185 LM |
5898 | dev = dev->next; |
5899 | } | |
5900 | found = 0; | |
089f9d79 | 5901 | if (fd >= 0 && disk_attached_to_hba(fd, hba)) { |
ca9de185 LM |
5902 | struct mdstat_ent *vol; |
5903 | for (vol = mdstat ; vol ; vol = vol->next) { | |
089f9d79 | 5904 | if (vol->active > 0 && |
ca9de185 | 5905 | vol->metadata_version && |
9581efb1 | 5906 | is_container_member(vol, memb->devnm)) { |
ca9de185 LM |
5907 | found++; |
5908 | count++; | |
5909 | } | |
5910 | } | |
5911 | if (*devlist && (found < dpa)) { | |
503975b9 | 5912 | dv = xcalloc(1, sizeof(*dv)); |
9581efb1 N |
5913 | dv->devname = xmalloc(strlen(memb->devnm) + strlen("/dev/") + 1); |
5914 | sprintf(dv->devname, "%s%s", "/dev/", memb->devnm); | |
503975b9 N |
5915 | dv->found = found; |
5916 | dv->used = 0; | |
5917 | dv->next = *devlist; | |
5918 | *devlist = dv; | |
ca9de185 LM |
5919 | } |
5920 | } | |
5921 | if (fd >= 0) | |
5922 | close(fd); | |
5923 | } | |
5924 | } | |
5925 | free_mdstat(mdstat); | |
5926 | return count; | |
5927 | } | |
5928 | ||
5929 | #ifdef DEBUG_LOOP | |
5930 | static struct md_list* | |
5931 | get_loop_devices(void) | |
5932 | { | |
5933 | int i; | |
5934 | struct md_list *devlist = NULL; | |
594dc1b8 | 5935 | struct md_list *dv; |
ca9de185 LM |
5936 | |
5937 | for(i = 0; i < 12; i++) { | |
503975b9 N |
5938 | dv = xcalloc(1, sizeof(*dv)); |
5939 | dv->devname = xmalloc(40); | |
ca9de185 LM |
5940 | sprintf(dv->devname, "/dev/loop%d", i); |
5941 | dv->next = devlist; | |
5942 | devlist = dv; | |
5943 | } | |
5944 | return devlist; | |
5945 | } | |
5946 | #endif | |
5947 | ||
5948 | static struct md_list* | |
5949 | get_devices(const char *hba_path) | |
5950 | { | |
5951 | struct md_list *devlist = NULL; | |
594dc1b8 | 5952 | struct md_list *dv; |
ca9de185 LM |
5953 | struct dirent *ent; |
5954 | DIR *dir; | |
5955 | int err = 0; | |
5956 | ||
5957 | #if DEBUG_LOOP | |
5958 | devlist = get_loop_devices(); | |
5959 | return devlist; | |
5960 | #endif | |
5961 | /* scroll through /sys/dev/block looking for devices attached to | |
5962 | * this hba | |
5963 | */ | |
5964 | dir = opendir("/sys/dev/block"); | |
5965 | for (ent = dir ? readdir(dir) : NULL; ent; ent = readdir(dir)) { | |
5966 | int fd; | |
5967 | char buf[1024]; | |
5968 | int major, minor; | |
5969 | char *path = NULL; | |
5970 | if (sscanf(ent->d_name, "%d:%d", &major, &minor) != 2) | |
5971 | continue; | |
5972 | path = devt_to_devpath(makedev(major, minor)); | |
5973 | if (!path) | |
5974 | continue; | |
5975 | if (!path_attached_to_hba(path, hba_path)) { | |
5976 | free(path); | |
5977 | path = NULL; | |
5978 | continue; | |
5979 | } | |
5980 | free(path); | |
5981 | path = NULL; | |
5982 | fd = dev_open(ent->d_name, O_RDONLY); | |
5983 | if (fd >= 0) { | |
5984 | fd2devname(fd, buf); | |
5985 | close(fd); | |
5986 | } else { | |
e7b84f9d | 5987 | pr_err("cannot open device: %s\n", |
ca9de185 LM |
5988 | ent->d_name); |
5989 | continue; | |
5990 | } | |
5991 | ||
503975b9 N |
5992 | dv = xcalloc(1, sizeof(*dv)); |
5993 | dv->devname = xstrdup(buf); | |
ca9de185 LM |
5994 | dv->next = devlist; |
5995 | devlist = dv; | |
5996 | } | |
5997 | if (err) { | |
5998 | while(devlist) { | |
5999 | dv = devlist; | |
6000 | devlist = devlist->next; | |
6001 | free(dv->devname); | |
6002 | free(dv); | |
6003 | } | |
6004 | } | |
562aa102 | 6005 | closedir(dir); |
ca9de185 LM |
6006 | return devlist; |
6007 | } | |
6008 | ||
6009 | static int | |
6010 | count_volumes_list(struct md_list *devlist, char *homehost, | |
6011 | int verbose, int *found) | |
6012 | { | |
6013 | struct md_list *tmpdev; | |
6014 | int count = 0; | |
594dc1b8 | 6015 | struct supertype *st; |
ca9de185 LM |
6016 | |
6017 | /* first walk the list of devices to find a consistent set | |
6018 | * that match the criterea, if that is possible. | |
6019 | * We flag the ones we like with 'used'. | |
6020 | */ | |
6021 | *found = 0; | |
6022 | st = match_metadata_desc_imsm("imsm"); | |
6023 | if (st == NULL) { | |
676e87a8 | 6024 | pr_vrb("cannot allocate memory for imsm supertype\n"); |
ca9de185 LM |
6025 | return 0; |
6026 | } | |
6027 | ||
6028 | for (tmpdev = devlist; tmpdev; tmpdev = tmpdev->next) { | |
6029 | char *devname = tmpdev->devname; | |
6030 | struct stat stb; | |
6031 | struct supertype *tst; | |
6032 | int dfd; | |
6033 | if (tmpdev->used > 1) | |
6034 | continue; | |
6035 | tst = dup_super(st); | |
6036 | if (tst == NULL) { | |
676e87a8 | 6037 | pr_vrb("cannot allocate memory for imsm supertype\n"); |
ca9de185 LM |
6038 | goto err_1; |
6039 | } | |
6040 | tmpdev->container = 0; | |
6041 | dfd = dev_open(devname, O_RDONLY|O_EXCL); | |
6042 | if (dfd < 0) { | |
1ade5cc1 | 6043 | dprintf("cannot open device %s: %s\n", |
ca9de185 LM |
6044 | devname, strerror(errno)); |
6045 | tmpdev->used = 2; | |
6046 | } else if (fstat(dfd, &stb)< 0) { | |
6047 | /* Impossible! */ | |
1ade5cc1 | 6048 | dprintf("fstat failed for %s: %s\n", |
ca9de185 LM |
6049 | devname, strerror(errno)); |
6050 | tmpdev->used = 2; | |
6051 | } else if ((stb.st_mode & S_IFMT) != S_IFBLK) { | |
1ade5cc1 | 6052 | dprintf("%s is not a block device.\n", |
ca9de185 LM |
6053 | devname); |
6054 | tmpdev->used = 2; | |
6055 | } else if (must_be_container(dfd)) { | |
6056 | struct supertype *cst; | |
6057 | cst = super_by_fd(dfd, NULL); | |
6058 | if (cst == NULL) { | |
1ade5cc1 | 6059 | dprintf("cannot recognize container type %s\n", |
ca9de185 LM |
6060 | devname); |
6061 | tmpdev->used = 2; | |
6062 | } else if (tst->ss != st->ss) { | |
1ade5cc1 | 6063 | dprintf("non-imsm container - ignore it: %s\n", |
ca9de185 LM |
6064 | devname); |
6065 | tmpdev->used = 2; | |
6066 | } else if (!tst->ss->load_container || | |
6067 | tst->ss->load_container(tst, dfd, NULL)) | |
6068 | tmpdev->used = 2; | |
6069 | else { | |
6070 | tmpdev->container = 1; | |
6071 | } | |
6072 | if (cst) | |
6073 | cst->ss->free_super(cst); | |
6074 | } else { | |
6075 | tmpdev->st_rdev = stb.st_rdev; | |
6076 | if (tst->ss->load_super(tst,dfd, NULL)) { | |
1ade5cc1 | 6077 | dprintf("no RAID superblock on %s\n", |
ca9de185 LM |
6078 | devname); |
6079 | tmpdev->used = 2; | |
6080 | } else if (tst->ss->compare_super == NULL) { | |
1ade5cc1 | 6081 | dprintf("Cannot assemble %s metadata on %s\n", |
ca9de185 LM |
6082 | tst->ss->name, devname); |
6083 | tmpdev->used = 2; | |
6084 | } | |
6085 | } | |
6086 | if (dfd >= 0) | |
6087 | close(dfd); | |
6088 | if (tmpdev->used == 2 || tmpdev->used == 4) { | |
6089 | /* Ignore unrecognised devices during auto-assembly */ | |
6090 | goto loop; | |
6091 | } | |
6092 | else { | |
6093 | struct mdinfo info; | |
6094 | tst->ss->getinfo_super(tst, &info, NULL); | |
6095 | ||
6096 | if (st->minor_version == -1) | |
6097 | st->minor_version = tst->minor_version; | |
6098 | ||
6099 | if (memcmp(info.uuid, uuid_zero, | |
6100 | sizeof(int[4])) == 0) { | |
6101 | /* this is a floating spare. It cannot define | |
6102 | * an array unless there are no more arrays of | |
6103 | * this type to be found. It can be included | |
6104 | * in an array of this type though. | |
6105 | */ | |
6106 | tmpdev->used = 3; | |
6107 | goto loop; | |
6108 | } | |
6109 | ||
6110 | if (st->ss != tst->ss || | |
6111 | st->minor_version != tst->minor_version || | |
6112 | st->ss->compare_super(st, tst) != 0) { | |
6113 | /* Some mismatch. If exactly one array matches this host, | |
6114 | * we can resolve on that one. | |
6115 | * Or, if we are auto assembling, we just ignore the second | |
6116 | * for now. | |
6117 | */ | |
1ade5cc1 | 6118 | dprintf("superblock on %s doesn't match others - assembly aborted\n", |
ca9de185 LM |
6119 | devname); |
6120 | goto loop; | |
6121 | } | |
6122 | tmpdev->used = 1; | |
6123 | *found = 1; | |
6124 | dprintf("found: devname: %s\n", devname); | |
6125 | } | |
6126 | loop: | |
6127 | if (tst) | |
6128 | tst->ss->free_super(tst); | |
6129 | } | |
6130 | if (*found != 0) { | |
6131 | int err; | |
6132 | if ((err = load_super_imsm_all(st, -1, &st->sb, NULL, devlist, 0)) == 0) { | |
6133 | struct mdinfo *iter, *head = st->ss->container_content(st, NULL); | |
6134 | for (iter = head; iter; iter = iter->next) { | |
6135 | dprintf("content->text_version: %s vol\n", | |
6136 | iter->text_version); | |
6137 | if (iter->array.state & (1<<MD_SB_BLOCK_VOLUME)) { | |
6138 | /* do not assemble arrays with unsupported | |
6139 | configurations */ | |
1ade5cc1 | 6140 | dprintf("Cannot activate member %s.\n", |
ca9de185 LM |
6141 | iter->text_version); |
6142 | } else | |
6143 | count++; | |
6144 | } | |
6145 | sysfs_free(head); | |
6146 | ||
6147 | } else { | |
1ade5cc1 | 6148 | dprintf("No valid super block on device list: err: %d %p\n", |
ca9de185 LM |
6149 | err, st->sb); |
6150 | } | |
6151 | } else { | |
1ade5cc1 | 6152 | dprintf("no more devices to examine\n"); |
ca9de185 LM |
6153 | } |
6154 | ||
6155 | for (tmpdev = devlist; tmpdev; tmpdev = tmpdev->next) { | |
089f9d79 | 6156 | if (tmpdev->used == 1 && tmpdev->found) { |
ca9de185 LM |
6157 | if (count) { |
6158 | if (count < tmpdev->found) | |
6159 | count = 0; | |
6160 | else | |
6161 | count -= tmpdev->found; | |
6162 | } | |
6163 | } | |
6164 | if (tmpdev->used == 1) | |
6165 | tmpdev->used = 4; | |
6166 | } | |
6167 | err_1: | |
6168 | if (st) | |
6169 | st->ss->free_super(st); | |
6170 | return count; | |
6171 | } | |
6172 | ||
ca9de185 | 6173 | static int |
72a45777 | 6174 | count_volumes(struct intel_hba *hba, int dpa, int verbose) |
ca9de185 | 6175 | { |
72a45777 | 6176 | struct sys_dev *idev, *intel_devices = find_intel_devices(); |
ca9de185 | 6177 | int count = 0; |
72a45777 PB |
6178 | const struct orom_entry *entry; |
6179 | struct devid_list *dv, *devid_list; | |
ca9de185 | 6180 | |
72a45777 | 6181 | if (!hba || !hba->path) |
ca9de185 LM |
6182 | return 0; |
6183 | ||
72a45777 PB |
6184 | for (idev = intel_devices; idev; idev = idev->next) { |
6185 | if (strstr(idev->path, hba->path)) | |
6186 | break; | |
6187 | } | |
6188 | ||
6189 | if (!idev || !idev->dev_id) | |
ca9de185 | 6190 | return 0; |
72a45777 PB |
6191 | |
6192 | entry = get_orom_entry_by_device_id(idev->dev_id); | |
6193 | ||
6194 | if (!entry || !entry->devid_list) | |
6195 | return 0; | |
6196 | ||
6197 | devid_list = entry->devid_list; | |
6198 | for (dv = devid_list; dv; dv = dv->next) { | |
594dc1b8 | 6199 | struct md_list *devlist; |
72a45777 PB |
6200 | struct sys_dev *device = device_by_id(dv->devid); |
6201 | char *hba_path; | |
6202 | int found = 0; | |
6203 | ||
6204 | if (device) | |
6205 | hba_path = device->path; | |
6206 | else | |
6207 | return 0; | |
6208 | ||
6209 | devlist = get_devices(hba_path); | |
6210 | /* if no intel devices return zero volumes */ | |
6211 | if (devlist == NULL) | |
6212 | return 0; | |
6213 | ||
6214 | count += active_arrays_by_format("imsm", hba_path, &devlist, dpa, verbose); | |
6215 | dprintf("path: %s active arrays: %d\n", hba_path, count); | |
6216 | if (devlist == NULL) | |
6217 | return 0; | |
6218 | do { | |
6219 | found = 0; | |
6220 | count += count_volumes_list(devlist, | |
6221 | NULL, | |
6222 | verbose, | |
6223 | &found); | |
6224 | dprintf("found %d count: %d\n", found, count); | |
6225 | } while (found); | |
6226 | ||
6227 | dprintf("path: %s total number of volumes: %d\n", hba_path, count); | |
6228 | ||
6229 | while (devlist) { | |
6230 | struct md_list *dv = devlist; | |
6231 | devlist = devlist->next; | |
6232 | free(dv->devname); | |
6233 | free(dv); | |
6234 | } | |
ca9de185 LM |
6235 | } |
6236 | return count; | |
6237 | } | |
6238 | ||
cd9d1ac7 DW |
6239 | static int imsm_default_chunk(const struct imsm_orom *orom) |
6240 | { | |
6241 | /* up to 512 if the plaform supports it, otherwise the platform max. | |
6242 | * 128 if no platform detected | |
6243 | */ | |
6244 | int fs = max(7, orom ? fls(orom->sss) : 0); | |
6245 | ||
6246 | return min(512, (1 << fs)); | |
6247 | } | |
73408129 | 6248 | |
6592ce37 DW |
6249 | static int |
6250 | validate_geometry_imsm_orom(struct intel_super *super, int level, int layout, | |
2cc699af | 6251 | int raiddisks, int *chunk, unsigned long long size, int verbose) |
6592ce37 | 6252 | { |
660260d0 DW |
6253 | /* check/set platform and metadata limits/defaults */ |
6254 | if (super->orom && raiddisks > super->orom->dpa) { | |
676e87a8 | 6255 | pr_vrb("platform supports a maximum of %d disks per array\n", |
660260d0 | 6256 | super->orom->dpa); |
73408129 LM |
6257 | return 0; |
6258 | } | |
6259 | ||
5d500228 | 6260 | /* capabilities of OROM tested - copied from validate_geometry_imsm_volume */ |
660260d0 | 6261 | if (!is_raid_level_supported(super->orom, level, raiddisks)) { |
676e87a8 | 6262 | pr_vrb("platform does not support raid%d with %d disk%s\n", |
6592ce37 DW |
6263 | level, raiddisks, raiddisks > 1 ? "s" : ""); |
6264 | return 0; | |
6265 | } | |
cd9d1ac7 | 6266 | |
7ccc4cc4 | 6267 | if (*chunk == 0 || *chunk == UnSet) |
cd9d1ac7 DW |
6268 | *chunk = imsm_default_chunk(super->orom); |
6269 | ||
7ccc4cc4 | 6270 | if (super->orom && !imsm_orom_has_chunk(super->orom, *chunk)) { |
676e87a8 | 6271 | pr_vrb("platform does not support a chunk size of: %d\n", *chunk); |
cd9d1ac7 | 6272 | return 0; |
6592ce37 | 6273 | } |
cd9d1ac7 | 6274 | |
6592ce37 DW |
6275 | if (layout != imsm_level_to_layout(level)) { |
6276 | if (level == 5) | |
676e87a8 | 6277 | pr_vrb("imsm raid 5 only supports the left-asymmetric layout\n"); |
6592ce37 | 6278 | else if (level == 10) |
676e87a8 | 6279 | pr_vrb("imsm raid 10 only supports the n2 layout\n"); |
6592ce37 | 6280 | else |
676e87a8 | 6281 | pr_vrb("imsm unknown layout %#x for this raid level %d\n", |
6592ce37 DW |
6282 | layout, level); |
6283 | return 0; | |
6284 | } | |
2cc699af | 6285 | |
7ccc4cc4 | 6286 | if (super->orom && (super->orom->attr & IMSM_OROM_ATTR_2TB) == 0 && |
2cc699af | 6287 | (calc_array_size(level, raiddisks, layout, *chunk, size) >> 32) > 0) { |
676e87a8 | 6288 | pr_vrb("platform does not support a volume size over 2TB\n"); |
2cc699af CA |
6289 | return 0; |
6290 | } | |
614902f6 | 6291 | |
6592ce37 DW |
6292 | return 1; |
6293 | } | |
6294 | ||
1011e834 | 6295 | /* validate_geometry_imsm_volume - lifted from validate_geometry_ddf_bvd |
c2c087e6 DW |
6296 | * FIX ME add ahci details |
6297 | */ | |
8b353278 | 6298 | static int validate_geometry_imsm_volume(struct supertype *st, int level, |
c21e737b | 6299 | int layout, int raiddisks, int *chunk, |
af4348dd N |
6300 | unsigned long long size, |
6301 | unsigned long long data_offset, | |
6302 | char *dev, | |
2c514b71 NB |
6303 | unsigned long long *freesize, |
6304 | int verbose) | |
cdddbdbc | 6305 | { |
c2c087e6 DW |
6306 | struct stat stb; |
6307 | struct intel_super *super = st->sb; | |
b2916f25 | 6308 | struct imsm_super *mpb; |
c2c087e6 DW |
6309 | struct dl *dl; |
6310 | unsigned long long pos = 0; | |
6311 | unsigned long long maxsize; | |
6312 | struct extent *e; | |
6313 | int i; | |
cdddbdbc | 6314 | |
88c32bb1 DW |
6315 | /* We must have the container info already read in. */ |
6316 | if (!super) | |
c2c087e6 DW |
6317 | return 0; |
6318 | ||
b2916f25 JS |
6319 | mpb = super->anchor; |
6320 | ||
2cc699af | 6321 | if (!validate_geometry_imsm_orom(super, level, layout, raiddisks, chunk, size, verbose)) { |
7a862a02 | 6322 | pr_err("RAID gemetry validation failed. Cannot proceed with the action(s).\n"); |
c2c087e6 | 6323 | return 0; |
d54559f0 | 6324 | } |
c2c087e6 DW |
6325 | if (!dev) { |
6326 | /* General test: make sure there is space for | |
2da8544a DW |
6327 | * 'raiddisks' device extents of size 'size' at a given |
6328 | * offset | |
c2c087e6 | 6329 | */ |
e46273eb | 6330 | unsigned long long minsize = size; |
b7528a20 | 6331 | unsigned long long start_offset = MaxSector; |
c2c087e6 DW |
6332 | int dcnt = 0; |
6333 | if (minsize == 0) | |
6334 | minsize = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
6335 | for (dl = super->disks; dl ; dl = dl->next) { | |
6336 | int found = 0; | |
6337 | ||
bf5a934a | 6338 | pos = 0; |
c2c087e6 DW |
6339 | i = 0; |
6340 | e = get_extents(super, dl); | |
6341 | if (!e) continue; | |
6342 | do { | |
6343 | unsigned long long esize; | |
6344 | esize = e[i].start - pos; | |
6345 | if (esize >= minsize) | |
6346 | found = 1; | |
b7528a20 | 6347 | if (found && start_offset == MaxSector) { |
2da8544a DW |
6348 | start_offset = pos; |
6349 | break; | |
6350 | } else if (found && pos != start_offset) { | |
6351 | found = 0; | |
6352 | break; | |
6353 | } | |
c2c087e6 DW |
6354 | pos = e[i].start + e[i].size; |
6355 | i++; | |
6356 | } while (e[i-1].size); | |
6357 | if (found) | |
6358 | dcnt++; | |
6359 | free(e); | |
6360 | } | |
6361 | if (dcnt < raiddisks) { | |
2c514b71 | 6362 | if (verbose) |
7a862a02 | 6363 | pr_err("imsm: Not enough devices with space for this array (%d < %d)\n", |
2c514b71 | 6364 | dcnt, raiddisks); |
c2c087e6 DW |
6365 | return 0; |
6366 | } | |
6367 | return 1; | |
6368 | } | |
0dcecb2e | 6369 | |
c2c087e6 DW |
6370 | /* This device must be a member of the set */ |
6371 | if (stat(dev, &stb) < 0) | |
6372 | return 0; | |
6373 | if ((S_IFMT & stb.st_mode) != S_IFBLK) | |
6374 | return 0; | |
6375 | for (dl = super->disks ; dl ; dl = dl->next) { | |
f21e18ca N |
6376 | if (dl->major == (int)major(stb.st_rdev) && |
6377 | dl->minor == (int)minor(stb.st_rdev)) | |
c2c087e6 DW |
6378 | break; |
6379 | } | |
6380 | if (!dl) { | |
2c514b71 | 6381 | if (verbose) |
7a862a02 | 6382 | pr_err("%s is not in the same imsm set\n", dev); |
c2c087e6 | 6383 | return 0; |
a20d2ba5 DW |
6384 | } else if (super->orom && dl->index < 0 && mpb->num_raid_devs) { |
6385 | /* If a volume is present then the current creation attempt | |
6386 | * cannot incorporate new spares because the orom may not | |
6387 | * understand this configuration (all member disks must be | |
6388 | * members of each array in the container). | |
6389 | */ | |
7a862a02 N |
6390 | pr_err("%s is a spare and a volume is already defined for this container\n", dev); |
6391 | pr_err("The option-rom requires all member disks to be a member of all volumes\n"); | |
a20d2ba5 | 6392 | return 0; |
5fe62b94 WD |
6393 | } else if (super->orom && mpb->num_raid_devs > 0 && |
6394 | mpb->num_disks != raiddisks) { | |
7a862a02 | 6395 | pr_err("The option-rom requires all member disks to be a member of all volumes\n"); |
5fe62b94 | 6396 | return 0; |
c2c087e6 | 6397 | } |
0dcecb2e DW |
6398 | |
6399 | /* retrieve the largest free space block */ | |
c2c087e6 DW |
6400 | e = get_extents(super, dl); |
6401 | maxsize = 0; | |
6402 | i = 0; | |
0dcecb2e DW |
6403 | if (e) { |
6404 | do { | |
6405 | unsigned long long esize; | |
6406 | ||
6407 | esize = e[i].start - pos; | |
6408 | if (esize >= maxsize) | |
6409 | maxsize = esize; | |
6410 | pos = e[i].start + e[i].size; | |
6411 | i++; | |
6412 | } while (e[i-1].size); | |
6413 | dl->e = e; | |
6414 | dl->extent_cnt = i; | |
6415 | } else { | |
6416 | if (verbose) | |
e7b84f9d | 6417 | pr_err("unable to determine free space for: %s\n", |
0dcecb2e DW |
6418 | dev); |
6419 | return 0; | |
6420 | } | |
6421 | if (maxsize < size) { | |
6422 | if (verbose) | |
e7b84f9d | 6423 | pr_err("%s not enough space (%llu < %llu)\n", |
0dcecb2e DW |
6424 | dev, maxsize, size); |
6425 | return 0; | |
6426 | } | |
6427 | ||
6428 | /* count total number of extents for merge */ | |
6429 | i = 0; | |
6430 | for (dl = super->disks; dl; dl = dl->next) | |
6431 | if (dl->e) | |
6432 | i += dl->extent_cnt; | |
6433 | ||
6434 | maxsize = merge_extents(super, i); | |
3baa56ab LO |
6435 | |
6436 | if (!check_env("IMSM_NO_PLATFORM") && | |
6437 | mpb->num_raid_devs > 0 && size && size != maxsize) { | |
7a862a02 | 6438 | pr_err("attempting to create a second volume with size less then remaining space. Aborting...\n"); |
3baa56ab LO |
6439 | return 0; |
6440 | } | |
6441 | ||
a7dd165b | 6442 | if (maxsize < size || maxsize == 0) { |
b3071342 LD |
6443 | if (verbose) { |
6444 | if (maxsize == 0) | |
7a862a02 | 6445 | pr_err("no free space left on device. Aborting...\n"); |
b3071342 | 6446 | else |
7a862a02 | 6447 | pr_err("not enough space to create volume of given size (%llu < %llu). Aborting...\n", |
b3071342 LD |
6448 | maxsize, size); |
6449 | } | |
0dcecb2e | 6450 | return 0; |
0dcecb2e DW |
6451 | } |
6452 | ||
c2c087e6 DW |
6453 | *freesize = maxsize; |
6454 | ||
ca9de185 | 6455 | if (super->orom) { |
72a45777 | 6456 | int count = count_volumes(super->hba, |
ca9de185 LM |
6457 | super->orom->dpa, verbose); |
6458 | if (super->orom->vphba <= count) { | |
676e87a8 | 6459 | pr_vrb("platform does not support more than %d raid volumes.\n", |
ca9de185 LM |
6460 | super->orom->vphba); |
6461 | return 0; | |
6462 | } | |
6463 | } | |
c2c087e6 | 6464 | return 1; |
cdddbdbc DW |
6465 | } |
6466 | ||
13bcac90 | 6467 | static int imsm_get_free_size(struct supertype *st, int raiddisks, |
efb30e7f DW |
6468 | unsigned long long size, int chunk, |
6469 | unsigned long long *freesize) | |
6470 | { | |
6471 | struct intel_super *super = st->sb; | |
6472 | struct imsm_super *mpb = super->anchor; | |
6473 | struct dl *dl; | |
6474 | int i; | |
6475 | int extent_cnt; | |
6476 | struct extent *e; | |
6477 | unsigned long long maxsize; | |
6478 | unsigned long long minsize; | |
6479 | int cnt; | |
6480 | int used; | |
6481 | ||
6482 | /* find the largest common start free region of the possible disks */ | |
6483 | used = 0; | |
6484 | extent_cnt = 0; | |
6485 | cnt = 0; | |
6486 | for (dl = super->disks; dl; dl = dl->next) { | |
6487 | dl->raiddisk = -1; | |
6488 | ||
6489 | if (dl->index >= 0) | |
6490 | used++; | |
6491 | ||
6492 | /* don't activate new spares if we are orom constrained | |
6493 | * and there is already a volume active in the container | |
6494 | */ | |
6495 | if (super->orom && dl->index < 0 && mpb->num_raid_devs) | |
6496 | continue; | |
6497 | ||
6498 | e = get_extents(super, dl); | |
6499 | if (!e) | |
6500 | continue; | |
6501 | for (i = 1; e[i-1].size; i++) | |
6502 | ; | |
6503 | dl->e = e; | |
6504 | dl->extent_cnt = i; | |
6505 | extent_cnt += i; | |
6506 | cnt++; | |
6507 | } | |
6508 | ||
6509 | maxsize = merge_extents(super, extent_cnt); | |
6510 | minsize = size; | |
6511 | if (size == 0) | |
612e59d8 CA |
6512 | /* chunk is in K */ |
6513 | minsize = chunk * 2; | |
efb30e7f DW |
6514 | |
6515 | if (cnt < raiddisks || | |
6516 | (super->orom && used && used != raiddisks) || | |
a7dd165b DW |
6517 | maxsize < minsize || |
6518 | maxsize == 0) { | |
e7b84f9d | 6519 | pr_err("not enough devices with space to create array.\n"); |
efb30e7f DW |
6520 | return 0; /* No enough free spaces large enough */ |
6521 | } | |
6522 | ||
6523 | if (size == 0) { | |
6524 | size = maxsize; | |
6525 | if (chunk) { | |
612e59d8 CA |
6526 | size /= 2 * chunk; |
6527 | size *= 2 * chunk; | |
efb30e7f | 6528 | } |
f878b242 LM |
6529 | maxsize = size; |
6530 | } | |
6531 | if (!check_env("IMSM_NO_PLATFORM") && | |
6532 | mpb->num_raid_devs > 0 && size && size != maxsize) { | |
7a862a02 | 6533 | pr_err("attempting to create a second volume with size less then remaining space. Aborting...\n"); |
f878b242 | 6534 | return 0; |
efb30e7f | 6535 | } |
efb30e7f DW |
6536 | cnt = 0; |
6537 | for (dl = super->disks; dl; dl = dl->next) | |
6538 | if (dl->e) | |
6539 | dl->raiddisk = cnt++; | |
6540 | ||
6541 | *freesize = size; | |
6542 | ||
13bcac90 AK |
6543 | dprintf("imsm: imsm_get_free_size() returns : %llu\n", size); |
6544 | ||
efb30e7f DW |
6545 | return 1; |
6546 | } | |
6547 | ||
13bcac90 AK |
6548 | static int reserve_space(struct supertype *st, int raiddisks, |
6549 | unsigned long long size, int chunk, | |
6550 | unsigned long long *freesize) | |
6551 | { | |
6552 | struct intel_super *super = st->sb; | |
6553 | struct dl *dl; | |
6554 | int cnt; | |
6555 | int rv = 0; | |
6556 | ||
6557 | rv = imsm_get_free_size(st, raiddisks, size, chunk, freesize); | |
6558 | if (rv) { | |
6559 | cnt = 0; | |
6560 | for (dl = super->disks; dl; dl = dl->next) | |
6561 | if (dl->e) | |
6562 | dl->raiddisk = cnt++; | |
6563 | rv = 1; | |
6564 | } | |
6565 | ||
6566 | return rv; | |
6567 | } | |
6568 | ||
bf5a934a | 6569 | static int validate_geometry_imsm(struct supertype *st, int level, int layout, |
c21e737b | 6570 | int raiddisks, int *chunk, unsigned long long size, |
af4348dd | 6571 | unsigned long long data_offset, |
bf5a934a DW |
6572 | char *dev, unsigned long long *freesize, |
6573 | int verbose) | |
6574 | { | |
6575 | int fd, cfd; | |
6576 | struct mdinfo *sra; | |
20cbe8d2 | 6577 | int is_member = 0; |
bf5a934a | 6578 | |
d54559f0 LM |
6579 | /* load capability |
6580 | * if given unused devices create a container | |
bf5a934a DW |
6581 | * if given given devices in a container create a member volume |
6582 | */ | |
6583 | if (level == LEVEL_CONTAINER) { | |
6584 | /* Must be a fresh device to add to a container */ | |
6585 | return validate_geometry_imsm_container(st, level, layout, | |
c21e737b | 6586 | raiddisks, |
7ccc4cc4 | 6587 | *chunk, |
af4348dd | 6588 | size, data_offset, |
bf5a934a DW |
6589 | dev, freesize, |
6590 | verbose); | |
6591 | } | |
9587c373 | 6592 | |
8592f29d | 6593 | if (!dev) { |
e91a3bad | 6594 | if (st->sb) { |
ca9de185 | 6595 | struct intel_super *super = st->sb; |
e91a3bad | 6596 | if (!validate_geometry_imsm_orom(st->sb, level, layout, |
2cc699af | 6597 | raiddisks, chunk, size, |
e91a3bad LM |
6598 | verbose)) |
6599 | return 0; | |
efb30e7f DW |
6600 | /* we are being asked to automatically layout a |
6601 | * new volume based on the current contents of | |
6602 | * the container. If the the parameters can be | |
6603 | * satisfied reserve_space will record the disks, | |
6604 | * start offset, and size of the volume to be | |
6605 | * created. add_to_super and getinfo_super | |
6606 | * detect when autolayout is in progress. | |
6607 | */ | |
ca9de185 LM |
6608 | /* assuming that freesize is always given when array is |
6609 | created */ | |
6610 | if (super->orom && freesize) { | |
6611 | int count; | |
72a45777 | 6612 | count = count_volumes(super->hba, |
ca9de185 LM |
6613 | super->orom->dpa, verbose); |
6614 | if (super->orom->vphba <= count) { | |
676e87a8 | 6615 | pr_vrb("platform does not support more than %d raid volumes.\n", |
ca9de185 LM |
6616 | super->orom->vphba); |
6617 | return 0; | |
6618 | } | |
6619 | } | |
e91a3bad LM |
6620 | if (freesize) |
6621 | return reserve_space(st, raiddisks, size, | |
7ccc4cc4 | 6622 | *chunk, freesize); |
8592f29d N |
6623 | } |
6624 | return 1; | |
6625 | } | |
bf5a934a DW |
6626 | if (st->sb) { |
6627 | /* creating in a given container */ | |
6628 | return validate_geometry_imsm_volume(st, level, layout, | |
6629 | raiddisks, chunk, size, | |
af4348dd | 6630 | data_offset, |
bf5a934a DW |
6631 | dev, freesize, verbose); |
6632 | } | |
6633 | ||
bf5a934a DW |
6634 | /* This device needs to be a device in an 'imsm' container */ |
6635 | fd = open(dev, O_RDONLY|O_EXCL, 0); | |
6636 | if (fd >= 0) { | |
6637 | if (verbose) | |
e7b84f9d N |
6638 | pr_err("Cannot create this array on device %s\n", |
6639 | dev); | |
bf5a934a DW |
6640 | close(fd); |
6641 | return 0; | |
6642 | } | |
6643 | if (errno != EBUSY || (fd = open(dev, O_RDONLY, 0)) < 0) { | |
6644 | if (verbose) | |
e7b84f9d | 6645 | pr_err("Cannot open %s: %s\n", |
bf5a934a DW |
6646 | dev, strerror(errno)); |
6647 | return 0; | |
6648 | } | |
6649 | /* Well, it is in use by someone, maybe an 'imsm' container. */ | |
6650 | cfd = open_container(fd); | |
20cbe8d2 | 6651 | close(fd); |
bf5a934a | 6652 | if (cfd < 0) { |
bf5a934a | 6653 | if (verbose) |
e7b84f9d | 6654 | pr_err("Cannot use %s: It is busy\n", |
bf5a934a DW |
6655 | dev); |
6656 | return 0; | |
6657 | } | |
4dd2df09 | 6658 | sra = sysfs_read(cfd, NULL, GET_VERSION); |
bf5a934a | 6659 | if (sra && sra->array.major_version == -1 && |
20cbe8d2 AW |
6660 | strcmp(sra->text_version, "imsm") == 0) |
6661 | is_member = 1; | |
6662 | sysfs_free(sra); | |
6663 | if (is_member) { | |
bf5a934a DW |
6664 | /* This is a member of a imsm container. Load the container |
6665 | * and try to create a volume | |
6666 | */ | |
6667 | struct intel_super *super; | |
6668 | ||
ec50f7b6 | 6669 | if (load_super_imsm_all(st, cfd, (void **) &super, NULL, NULL, 1) == 0) { |
bf5a934a | 6670 | st->sb = super; |
4dd2df09 | 6671 | strcpy(st->container_devnm, fd2devnm(cfd)); |
bf5a934a DW |
6672 | close(cfd); |
6673 | return validate_geometry_imsm_volume(st, level, layout, | |
6674 | raiddisks, chunk, | |
af4348dd | 6675 | size, data_offset, dev, |
ecbd9e81 N |
6676 | freesize, 1) |
6677 | ? 1 : -1; | |
bf5a934a | 6678 | } |
20cbe8d2 | 6679 | } |
bf5a934a | 6680 | |
20cbe8d2 | 6681 | if (verbose) |
e7b84f9d | 6682 | pr_err("failed container membership check\n"); |
20cbe8d2 AW |
6683 | |
6684 | close(cfd); | |
6685 | return 0; | |
bf5a934a | 6686 | } |
0bd16cf2 | 6687 | |
30f58b22 | 6688 | static void default_geometry_imsm(struct supertype *st, int *level, int *layout, int *chunk) |
0bd16cf2 DJ |
6689 | { |
6690 | struct intel_super *super = st->sb; | |
6691 | ||
30f58b22 DW |
6692 | if (level && *level == UnSet) |
6693 | *level = LEVEL_CONTAINER; | |
6694 | ||
6695 | if (level && layout && *layout == UnSet) | |
6696 | *layout = imsm_level_to_layout(*level); | |
0bd16cf2 | 6697 | |
cd9d1ac7 DW |
6698 | if (chunk && (*chunk == UnSet || *chunk == 0)) |
6699 | *chunk = imsm_default_chunk(super->orom); | |
0bd16cf2 DJ |
6700 | } |
6701 | ||
33414a01 DW |
6702 | static void handle_missing(struct intel_super *super, struct imsm_dev *dev); |
6703 | ||
6704 | static int kill_subarray_imsm(struct supertype *st) | |
6705 | { | |
6706 | /* remove the subarray currently referenced by ->current_vol */ | |
6707 | __u8 i; | |
6708 | struct intel_dev **dp; | |
6709 | struct intel_super *super = st->sb; | |
6710 | __u8 current_vol = super->current_vol; | |
6711 | struct imsm_super *mpb = super->anchor; | |
6712 | ||
6713 | if (super->current_vol < 0) | |
6714 | return 2; | |
6715 | super->current_vol = -1; /* invalidate subarray cursor */ | |
6716 | ||
6717 | /* block deletions that would change the uuid of active subarrays | |
6718 | * | |
6719 | * FIXME when immutable ids are available, but note that we'll | |
6720 | * also need to fixup the invalidated/active subarray indexes in | |
6721 | * mdstat | |
6722 | */ | |
6723 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
6724 | char subarray[4]; | |
6725 | ||
6726 | if (i < current_vol) | |
6727 | continue; | |
6728 | sprintf(subarray, "%u", i); | |
4dd2df09 | 6729 | if (is_subarray_active(subarray, st->devnm)) { |
e7b84f9d N |
6730 | pr_err("deleting subarray-%d would change the UUID of active subarray-%d, aborting\n", |
6731 | current_vol, i); | |
33414a01 DW |
6732 | |
6733 | return 2; | |
6734 | } | |
6735 | } | |
6736 | ||
6737 | if (st->update_tail) { | |
503975b9 | 6738 | struct imsm_update_kill_array *u = xmalloc(sizeof(*u)); |
33414a01 | 6739 | |
33414a01 DW |
6740 | u->type = update_kill_array; |
6741 | u->dev_idx = current_vol; | |
6742 | append_metadata_update(st, u, sizeof(*u)); | |
6743 | ||
6744 | return 0; | |
6745 | } | |
6746 | ||
6747 | for (dp = &super->devlist; *dp;) | |
6748 | if ((*dp)->index == current_vol) { | |
6749 | *dp = (*dp)->next; | |
6750 | } else { | |
6751 | handle_missing(super, (*dp)->dev); | |
6752 | if ((*dp)->index > current_vol) | |
6753 | (*dp)->index--; | |
6754 | dp = &(*dp)->next; | |
6755 | } | |
6756 | ||
6757 | /* no more raid devices, all active components are now spares, | |
6758 | * but of course failed are still failed | |
6759 | */ | |
6760 | if (--mpb->num_raid_devs == 0) { | |
6761 | struct dl *d; | |
6762 | ||
6763 | for (d = super->disks; d; d = d->next) | |
a8619d23 AK |
6764 | if (d->index > -2) |
6765 | mark_spare(d); | |
33414a01 DW |
6766 | } |
6767 | ||
6768 | super->updates_pending++; | |
6769 | ||
6770 | return 0; | |
6771 | } | |
aa534678 | 6772 | |
a951a4f7 | 6773 | static int update_subarray_imsm(struct supertype *st, char *subarray, |
fa56eddb | 6774 | char *update, struct mddev_ident *ident) |
aa534678 DW |
6775 | { |
6776 | /* update the subarray currently referenced by ->current_vol */ | |
6777 | struct intel_super *super = st->sb; | |
6778 | struct imsm_super *mpb = super->anchor; | |
6779 | ||
aa534678 DW |
6780 | if (strcmp(update, "name") == 0) { |
6781 | char *name = ident->name; | |
a951a4f7 N |
6782 | char *ep; |
6783 | int vol; | |
aa534678 | 6784 | |
4dd2df09 | 6785 | if (is_subarray_active(subarray, st->devnm)) { |
e7b84f9d | 6786 | pr_err("Unable to update name of active subarray\n"); |
aa534678 DW |
6787 | return 2; |
6788 | } | |
6789 | ||
6790 | if (!check_name(super, name, 0)) | |
6791 | return 2; | |
6792 | ||
a951a4f7 N |
6793 | vol = strtoul(subarray, &ep, 10); |
6794 | if (*ep != '\0' || vol >= super->anchor->num_raid_devs) | |
6795 | return 2; | |
6796 | ||
aa534678 | 6797 | if (st->update_tail) { |
503975b9 | 6798 | struct imsm_update_rename_array *u = xmalloc(sizeof(*u)); |
aa534678 | 6799 | |
aa534678 | 6800 | u->type = update_rename_array; |
a951a4f7 | 6801 | u->dev_idx = vol; |
aa534678 DW |
6802 | snprintf((char *) u->name, MAX_RAID_SERIAL_LEN, "%s", name); |
6803 | append_metadata_update(st, u, sizeof(*u)); | |
6804 | } else { | |
6805 | struct imsm_dev *dev; | |
6806 | int i; | |
6807 | ||
a951a4f7 | 6808 | dev = get_imsm_dev(super, vol); |
aa534678 DW |
6809 | snprintf((char *) dev->volume, MAX_RAID_SERIAL_LEN, "%s", name); |
6810 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
6811 | dev = get_imsm_dev(super, i); | |
6812 | handle_missing(super, dev); | |
6813 | } | |
6814 | super->updates_pending++; | |
6815 | } | |
6816 | } else | |
6817 | return 2; | |
6818 | ||
6819 | return 0; | |
6820 | } | |
d1e02575 | 6821 | #endif /* MDASSEMBLE */ |
bf5a934a | 6822 | |
28bce06f AK |
6823 | static int is_gen_migration(struct imsm_dev *dev) |
6824 | { | |
7534230b AK |
6825 | if (dev == NULL) |
6826 | return 0; | |
6827 | ||
28bce06f AK |
6828 | if (!dev->vol.migr_state) |
6829 | return 0; | |
6830 | ||
6831 | if (migr_type(dev) == MIGR_GEN_MIGR) | |
6832 | return 1; | |
6833 | ||
6834 | return 0; | |
6835 | } | |
6836 | ||
1e5c6983 DW |
6837 | static int is_rebuilding(struct imsm_dev *dev) |
6838 | { | |
6839 | struct imsm_map *migr_map; | |
6840 | ||
6841 | if (!dev->vol.migr_state) | |
6842 | return 0; | |
6843 | ||
6844 | if (migr_type(dev) != MIGR_REBUILD) | |
6845 | return 0; | |
6846 | ||
238c0a71 | 6847 | migr_map = get_imsm_map(dev, MAP_1); |
1e5c6983 DW |
6848 | |
6849 | if (migr_map->map_state == IMSM_T_STATE_DEGRADED) | |
6850 | return 1; | |
6851 | else | |
6852 | return 0; | |
6853 | } | |
6854 | ||
b4ab44d8 | 6855 | #ifndef MDASSEMBLE |
6ce1fbf1 AK |
6856 | static int is_initializing(struct imsm_dev *dev) |
6857 | { | |
6858 | struct imsm_map *migr_map; | |
6859 | ||
6860 | if (!dev->vol.migr_state) | |
6861 | return 0; | |
6862 | ||
6863 | if (migr_type(dev) != MIGR_INIT) | |
6864 | return 0; | |
6865 | ||
238c0a71 | 6866 | migr_map = get_imsm_map(dev, MAP_1); |
6ce1fbf1 AK |
6867 | |
6868 | if (migr_map->map_state == IMSM_T_STATE_UNINITIALIZED) | |
6869 | return 1; | |
6870 | ||
6871 | return 0; | |
6ce1fbf1 | 6872 | } |
b4ab44d8 | 6873 | #endif |
6ce1fbf1 | 6874 | |
c47b0ff6 AK |
6875 | static void update_recovery_start(struct intel_super *super, |
6876 | struct imsm_dev *dev, | |
6877 | struct mdinfo *array) | |
1e5c6983 DW |
6878 | { |
6879 | struct mdinfo *rebuild = NULL; | |
6880 | struct mdinfo *d; | |
6881 | __u32 units; | |
6882 | ||
6883 | if (!is_rebuilding(dev)) | |
6884 | return; | |
6885 | ||
6886 | /* Find the rebuild target, but punt on the dual rebuild case */ | |
6887 | for (d = array->devs; d; d = d->next) | |
6888 | if (d->recovery_start == 0) { | |
6889 | if (rebuild) | |
6890 | return; | |
6891 | rebuild = d; | |
6892 | } | |
6893 | ||
4363fd80 DW |
6894 | if (!rebuild) { |
6895 | /* (?) none of the disks are marked with | |
6896 | * IMSM_ORD_REBUILD, so assume they are missing and the | |
6897 | * disk_ord_tbl was not correctly updated | |
6898 | */ | |
1ade5cc1 | 6899 | dprintf("failed to locate out-of-sync disk\n"); |
4363fd80 DW |
6900 | return; |
6901 | } | |
6902 | ||
1e5c6983 | 6903 | units = __le32_to_cpu(dev->vol.curr_migr_unit); |
c47b0ff6 | 6904 | rebuild->recovery_start = units * blocks_per_migr_unit(super, dev); |
1e5c6983 DW |
6905 | } |
6906 | ||
9e2d750d | 6907 | #ifndef MDASSEMBLE |
276d77db | 6908 | static int recover_backup_imsm(struct supertype *st, struct mdinfo *info); |
9e2d750d | 6909 | #endif |
1e5c6983 | 6910 | |
00bbdbda | 6911 | static struct mdinfo *container_content_imsm(struct supertype *st, char *subarray) |
cdddbdbc | 6912 | { |
4f5bc454 DW |
6913 | /* Given a container loaded by load_super_imsm_all, |
6914 | * extract information about all the arrays into | |
6915 | * an mdinfo tree. | |
00bbdbda | 6916 | * If 'subarray' is given, just extract info about that array. |
4f5bc454 DW |
6917 | * |
6918 | * For each imsm_dev create an mdinfo, fill it in, | |
6919 | * then look for matching devices in super->disks | |
6920 | * and create appropriate device mdinfo. | |
6921 | */ | |
6922 | struct intel_super *super = st->sb; | |
949c47a0 | 6923 | struct imsm_super *mpb = super->anchor; |
4f5bc454 | 6924 | struct mdinfo *rest = NULL; |
00bbdbda | 6925 | unsigned int i; |
81219e70 | 6926 | int sb_errors = 0; |
abef11a3 AK |
6927 | struct dl *d; |
6928 | int spare_disks = 0; | |
cdddbdbc | 6929 | |
19482bcc AK |
6930 | /* do not assemble arrays when not all attributes are supported */ |
6931 | if (imsm_check_attributes(mpb->attributes) == 0) { | |
81219e70 | 6932 | sb_errors = 1; |
7a862a02 | 6933 | pr_err("Unsupported attributes in IMSM metadata.Arrays activation is blocked.\n"); |
19482bcc AK |
6934 | } |
6935 | ||
a06d022d | 6936 | /* check for bad blocks */ |
81219e70 | 6937 | if (imsm_bbm_log_size(super->anchor)) { |
7a862a02 | 6938 | pr_err("BBM log found in IMSM metadata.Arrays activation is blocked.\n"); |
81219e70 LM |
6939 | sb_errors = 1; |
6940 | } | |
6941 | ||
abef11a3 AK |
6942 | /* count spare devices, not used in maps |
6943 | */ | |
6944 | for (d = super->disks; d; d = d->next) | |
6945 | if (d->index == -1) | |
6946 | spare_disks++; | |
6947 | ||
4f5bc454 | 6948 | for (i = 0; i < mpb->num_raid_devs; i++) { |
00bbdbda N |
6949 | struct imsm_dev *dev; |
6950 | struct imsm_map *map; | |
86e3692b | 6951 | struct imsm_map *map2; |
4f5bc454 | 6952 | struct mdinfo *this; |
a6482415 N |
6953 | int slot; |
6954 | #ifndef MDASSEMBLE | |
6955 | int chunk; | |
6956 | #endif | |
00bbdbda N |
6957 | char *ep; |
6958 | ||
6959 | if (subarray && | |
6960 | (i != strtoul(subarray, &ep, 10) || *ep != '\0')) | |
6961 | continue; | |
6962 | ||
6963 | dev = get_imsm_dev(super, i); | |
238c0a71 AK |
6964 | map = get_imsm_map(dev, MAP_0); |
6965 | map2 = get_imsm_map(dev, MAP_1); | |
4f5bc454 | 6966 | |
1ce0101c DW |
6967 | /* do not publish arrays that are in the middle of an |
6968 | * unsupported migration | |
6969 | */ | |
6970 | if (dev->vol.migr_state && | |
28bce06f | 6971 | (migr_type(dev) == MIGR_STATE_CHANGE)) { |
7a862a02 | 6972 | pr_err("cannot assemble volume '%.16s': unsupported migration in progress\n", |
1ce0101c DW |
6973 | dev->volume); |
6974 | continue; | |
6975 | } | |
2db86302 LM |
6976 | /* do not publish arrays that are not support by controller's |
6977 | * OROM/EFI | |
6978 | */ | |
1ce0101c | 6979 | |
503975b9 | 6980 | this = xmalloc(sizeof(*this)); |
4f5bc454 | 6981 | |
301406c9 | 6982 | super->current_vol = i; |
a5d85af7 | 6983 | getinfo_super_imsm_volume(st, this, NULL); |
9894ec0d | 6984 | this->next = rest; |
81219e70 | 6985 | #ifndef MDASSEMBLE |
a6482415 | 6986 | chunk = __le16_to_cpu(map->blocks_per_strip) >> 1; |
81219e70 LM |
6987 | /* mdadm does not support all metadata features- set the bit in all arrays state */ |
6988 | if (!validate_geometry_imsm_orom(super, | |
6989 | get_imsm_raid_level(map), /* RAID level */ | |
6990 | imsm_level_to_layout(get_imsm_raid_level(map)), | |
6991 | map->num_members, /* raid disks */ | |
2cc699af | 6992 | &chunk, join_u32(dev->size_low, dev->size_high), |
81219e70 | 6993 | 1 /* verbose */)) { |
7a862a02 | 6994 | pr_err("IMSM RAID geometry validation failed. Array %s activation is blocked.\n", |
81219e70 LM |
6995 | dev->volume); |
6996 | this->array.state |= | |
6997 | (1<<MD_SB_BLOCK_CONTAINER_RESHAPE) | | |
6998 | (1<<MD_SB_BLOCK_VOLUME); | |
6999 | } | |
7000 | #endif | |
7001 | ||
7002 | /* if array has bad blocks, set suitable bit in all arrays state */ | |
7003 | if (sb_errors) | |
7004 | this->array.state |= | |
7005 | (1<<MD_SB_BLOCK_CONTAINER_RESHAPE) | | |
7006 | (1<<MD_SB_BLOCK_VOLUME); | |
7007 | ||
4f5bc454 | 7008 | for (slot = 0 ; slot < map->num_members; slot++) { |
1e5c6983 | 7009 | unsigned long long recovery_start; |
4f5bc454 DW |
7010 | struct mdinfo *info_d; |
7011 | struct dl *d; | |
7012 | int idx; | |
9a1608e5 | 7013 | int skip; |
7eef0453 | 7014 | __u32 ord; |
4f5bc454 | 7015 | |
9a1608e5 | 7016 | skip = 0; |
238c0a71 AK |
7017 | idx = get_imsm_disk_idx(dev, slot, MAP_0); |
7018 | ord = get_imsm_ord_tbl_ent(dev, slot, MAP_X); | |
4f5bc454 DW |
7019 | for (d = super->disks; d ; d = d->next) |
7020 | if (d->index == idx) | |
0fbd635c | 7021 | break; |
4f5bc454 | 7022 | |
1e5c6983 | 7023 | recovery_start = MaxSector; |
4f5bc454 | 7024 | if (d == NULL) |
9a1608e5 | 7025 | skip = 1; |
25ed7e59 | 7026 | if (d && is_failed(&d->disk)) |
9a1608e5 | 7027 | skip = 1; |
7eef0453 | 7028 | if (ord & IMSM_ORD_REBUILD) |
1e5c6983 | 7029 | recovery_start = 0; |
9a1608e5 | 7030 | |
1011e834 | 7031 | /* |
9a1608e5 | 7032 | * if we skip some disks the array will be assmebled degraded; |
1e5c6983 DW |
7033 | * reset resync start to avoid a dirty-degraded |
7034 | * situation when performing the intial sync | |
9a1608e5 DW |
7035 | * |
7036 | * FIXME handle dirty degraded | |
7037 | */ | |
1e5c6983 | 7038 | if ((skip || recovery_start == 0) && !dev->vol.dirty) |
b7528a20 | 7039 | this->resync_start = MaxSector; |
9a1608e5 DW |
7040 | if (skip) |
7041 | continue; | |
4f5bc454 | 7042 | |
503975b9 | 7043 | info_d = xcalloc(1, sizeof(*info_d)); |
4f5bc454 DW |
7044 | info_d->next = this->devs; |
7045 | this->devs = info_d; | |
7046 | ||
4f5bc454 DW |
7047 | info_d->disk.number = d->index; |
7048 | info_d->disk.major = d->major; | |
7049 | info_d->disk.minor = d->minor; | |
7050 | info_d->disk.raid_disk = slot; | |
1e5c6983 | 7051 | info_d->recovery_start = recovery_start; |
86e3692b AK |
7052 | if (map2) { |
7053 | if (slot < map2->num_members) | |
7054 | info_d->disk.state = (1 << MD_DISK_ACTIVE); | |
04c3c514 AK |
7055 | else |
7056 | this->array.spare_disks++; | |
86e3692b AK |
7057 | } else { |
7058 | if (slot < map->num_members) | |
7059 | info_d->disk.state = (1 << MD_DISK_ACTIVE); | |
04c3c514 AK |
7060 | else |
7061 | this->array.spare_disks++; | |
86e3692b | 7062 | } |
1e5c6983 DW |
7063 | if (info_d->recovery_start == MaxSector) |
7064 | this->array.working_disks++; | |
4f5bc454 DW |
7065 | |
7066 | info_d->events = __le32_to_cpu(mpb->generation_num); | |
5551b113 CA |
7067 | info_d->data_offset = pba_of_lba0(map); |
7068 | info_d->component_size = blocks_per_member(map); | |
4f5bc454 | 7069 | } |
1e5c6983 | 7070 | /* now that the disk list is up-to-date fixup recovery_start */ |
c47b0ff6 | 7071 | update_recovery_start(super, dev, this); |
abef11a3 | 7072 | this->array.spare_disks += spare_disks; |
276d77db | 7073 | |
9e2d750d | 7074 | #ifndef MDASSEMBLE |
276d77db AK |
7075 | /* check for reshape */ |
7076 | if (this->reshape_active == 1) | |
7077 | recover_backup_imsm(st, this); | |
9e2d750d | 7078 | #endif |
9a1608e5 | 7079 | rest = this; |
4f5bc454 DW |
7080 | } |
7081 | ||
7082 | return rest; | |
cdddbdbc DW |
7083 | } |
7084 | ||
3b451610 AK |
7085 | static __u8 imsm_check_degraded(struct intel_super *super, struct imsm_dev *dev, |
7086 | int failed, int look_in_map) | |
c2a1e7da | 7087 | { |
3b451610 AK |
7088 | struct imsm_map *map; |
7089 | ||
7090 | map = get_imsm_map(dev, look_in_map); | |
c2a1e7da DW |
7091 | |
7092 | if (!failed) | |
1011e834 | 7093 | return map->map_state == IMSM_T_STATE_UNINITIALIZED ? |
3393c6af | 7094 | IMSM_T_STATE_UNINITIALIZED : IMSM_T_STATE_NORMAL; |
c2a1e7da DW |
7095 | |
7096 | switch (get_imsm_raid_level(map)) { | |
7097 | case 0: | |
7098 | return IMSM_T_STATE_FAILED; | |
7099 | break; | |
7100 | case 1: | |
7101 | if (failed < map->num_members) | |
7102 | return IMSM_T_STATE_DEGRADED; | |
7103 | else | |
7104 | return IMSM_T_STATE_FAILED; | |
7105 | break; | |
7106 | case 10: | |
7107 | { | |
7108 | /** | |
c92a2527 DW |
7109 | * check to see if any mirrors have failed, otherwise we |
7110 | * are degraded. Even numbered slots are mirrored on | |
7111 | * slot+1 | |
c2a1e7da | 7112 | */ |
c2a1e7da | 7113 | int i; |
d9b420a5 N |
7114 | /* gcc -Os complains that this is unused */ |
7115 | int insync = insync; | |
c2a1e7da DW |
7116 | |
7117 | for (i = 0; i < map->num_members; i++) { | |
238c0a71 | 7118 | __u32 ord = get_imsm_ord_tbl_ent(dev, i, MAP_X); |
c92a2527 DW |
7119 | int idx = ord_to_idx(ord); |
7120 | struct imsm_disk *disk; | |
c2a1e7da | 7121 | |
c92a2527 | 7122 | /* reset the potential in-sync count on even-numbered |
1011e834 | 7123 | * slots. num_copies is always 2 for imsm raid10 |
c92a2527 DW |
7124 | */ |
7125 | if ((i & 1) == 0) | |
7126 | insync = 2; | |
c2a1e7da | 7127 | |
c92a2527 | 7128 | disk = get_imsm_disk(super, idx); |
25ed7e59 | 7129 | if (!disk || is_failed(disk) || ord & IMSM_ORD_REBUILD) |
c92a2527 | 7130 | insync--; |
c2a1e7da | 7131 | |
c92a2527 DW |
7132 | /* no in-sync disks left in this mirror the |
7133 | * array has failed | |
7134 | */ | |
7135 | if (insync == 0) | |
7136 | return IMSM_T_STATE_FAILED; | |
c2a1e7da DW |
7137 | } |
7138 | ||
7139 | return IMSM_T_STATE_DEGRADED; | |
7140 | } | |
7141 | case 5: | |
7142 | if (failed < 2) | |
7143 | return IMSM_T_STATE_DEGRADED; | |
7144 | else | |
7145 | return IMSM_T_STATE_FAILED; | |
7146 | break; | |
7147 | default: | |
7148 | break; | |
7149 | } | |
7150 | ||
7151 | return map->map_state; | |
7152 | } | |
7153 | ||
3b451610 AK |
7154 | static int imsm_count_failed(struct intel_super *super, struct imsm_dev *dev, |
7155 | int look_in_map) | |
c2a1e7da DW |
7156 | { |
7157 | int i; | |
7158 | int failed = 0; | |
7159 | struct imsm_disk *disk; | |
d5985138 AK |
7160 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
7161 | struct imsm_map *prev = get_imsm_map(dev, MAP_1); | |
68fe4598 | 7162 | struct imsm_map *map_for_loop; |
0556e1a2 DW |
7163 | __u32 ord; |
7164 | int idx; | |
d5985138 | 7165 | int idx_1; |
c2a1e7da | 7166 | |
0556e1a2 DW |
7167 | /* at the beginning of migration we set IMSM_ORD_REBUILD on |
7168 | * disks that are being rebuilt. New failures are recorded to | |
7169 | * map[0]. So we look through all the disks we started with and | |
7170 | * see if any failures are still present, or if any new ones | |
7171 | * have arrived | |
0556e1a2 | 7172 | */ |
d5985138 AK |
7173 | map_for_loop = map; |
7174 | if (prev && (map->num_members < prev->num_members)) | |
7175 | map_for_loop = prev; | |
68fe4598 LD |
7176 | |
7177 | for (i = 0; i < map_for_loop->num_members; i++) { | |
d5985138 | 7178 | idx_1 = -255; |
238c0a71 AK |
7179 | /* when MAP_X is passed both maps failures are counted |
7180 | */ | |
d5985138 | 7181 | if (prev && |
089f9d79 JS |
7182 | (look_in_map == MAP_1 || look_in_map == MAP_X) && |
7183 | i < prev->num_members) { | |
d5985138 AK |
7184 | ord = __le32_to_cpu(prev->disk_ord_tbl[i]); |
7185 | idx_1 = ord_to_idx(ord); | |
c2a1e7da | 7186 | |
d5985138 AK |
7187 | disk = get_imsm_disk(super, idx_1); |
7188 | if (!disk || is_failed(disk) || ord & IMSM_ORD_REBUILD) | |
7189 | failed++; | |
7190 | } | |
089f9d79 JS |
7191 | if ((look_in_map == MAP_0 || look_in_map == MAP_X) && |
7192 | i < map->num_members) { | |
d5985138 AK |
7193 | ord = __le32_to_cpu(map->disk_ord_tbl[i]); |
7194 | idx = ord_to_idx(ord); | |
7195 | ||
7196 | if (idx != idx_1) { | |
7197 | disk = get_imsm_disk(super, idx); | |
7198 | if (!disk || is_failed(disk) || | |
7199 | ord & IMSM_ORD_REBUILD) | |
7200 | failed++; | |
7201 | } | |
7202 | } | |
c2a1e7da DW |
7203 | } |
7204 | ||
7205 | return failed; | |
845dea95 NB |
7206 | } |
7207 | ||
97b4d0e9 DW |
7208 | #ifndef MDASSEMBLE |
7209 | static int imsm_open_new(struct supertype *c, struct active_array *a, | |
7210 | char *inst) | |
7211 | { | |
7212 | struct intel_super *super = c->sb; | |
7213 | struct imsm_super *mpb = super->anchor; | |
9587c373 | 7214 | |
97b4d0e9 | 7215 | if (atoi(inst) >= mpb->num_raid_devs) { |
1ade5cc1 | 7216 | pr_err("subarry index %d, out of range\n", atoi(inst)); |
97b4d0e9 DW |
7217 | return -ENODEV; |
7218 | } | |
7219 | ||
7220 | dprintf("imsm: open_new %s\n", inst); | |
7221 | a->info.container_member = atoi(inst); | |
7222 | return 0; | |
7223 | } | |
7224 | ||
0c046afd DW |
7225 | static int is_resyncing(struct imsm_dev *dev) |
7226 | { | |
7227 | struct imsm_map *migr_map; | |
7228 | ||
7229 | if (!dev->vol.migr_state) | |
7230 | return 0; | |
7231 | ||
1484e727 DW |
7232 | if (migr_type(dev) == MIGR_INIT || |
7233 | migr_type(dev) == MIGR_REPAIR) | |
0c046afd DW |
7234 | return 1; |
7235 | ||
4c9bc37b AK |
7236 | if (migr_type(dev) == MIGR_GEN_MIGR) |
7237 | return 0; | |
7238 | ||
238c0a71 | 7239 | migr_map = get_imsm_map(dev, MAP_1); |
0c046afd | 7240 | |
089f9d79 JS |
7241 | if (migr_map->map_state == IMSM_T_STATE_NORMAL && |
7242 | dev->vol.migr_type != MIGR_GEN_MIGR) | |
0c046afd DW |
7243 | return 1; |
7244 | else | |
7245 | return 0; | |
7246 | } | |
7247 | ||
0556e1a2 DW |
7248 | /* return true if we recorded new information */ |
7249 | static int mark_failure(struct imsm_dev *dev, struct imsm_disk *disk, int idx) | |
47ee5a45 | 7250 | { |
0556e1a2 DW |
7251 | __u32 ord; |
7252 | int slot; | |
7253 | struct imsm_map *map; | |
86c54047 DW |
7254 | char buf[MAX_RAID_SERIAL_LEN+3]; |
7255 | unsigned int len, shift = 0; | |
0556e1a2 DW |
7256 | |
7257 | /* new failures are always set in map[0] */ | |
238c0a71 | 7258 | map = get_imsm_map(dev, MAP_0); |
0556e1a2 DW |
7259 | |
7260 | slot = get_imsm_disk_slot(map, idx); | |
7261 | if (slot < 0) | |
7262 | return 0; | |
7263 | ||
7264 | ord = __le32_to_cpu(map->disk_ord_tbl[slot]); | |
25ed7e59 | 7265 | if (is_failed(disk) && (ord & IMSM_ORD_REBUILD)) |
0556e1a2 DW |
7266 | return 0; |
7267 | ||
7d0c5e24 LD |
7268 | memcpy(buf, disk->serial, MAX_RAID_SERIAL_LEN); |
7269 | buf[MAX_RAID_SERIAL_LEN] = '\000'; | |
7270 | strcat(buf, ":0"); | |
86c54047 DW |
7271 | if ((len = strlen(buf)) >= MAX_RAID_SERIAL_LEN) |
7272 | shift = len - MAX_RAID_SERIAL_LEN + 1; | |
7273 | strncpy((char *)disk->serial, &buf[shift], MAX_RAID_SERIAL_LEN); | |
7274 | ||
f2f27e63 | 7275 | disk->status |= FAILED_DISK; |
0556e1a2 | 7276 | set_imsm_ord_tbl_ent(map, slot, idx | IMSM_ORD_REBUILD); |
17788994 AK |
7277 | /* mark failures in second map if second map exists and this disk |
7278 | * in this slot. | |
7279 | * This is valid for migration, initialization and rebuild | |
7280 | */ | |
7281 | if (dev->vol.migr_state) { | |
238c0a71 | 7282 | struct imsm_map *map2 = get_imsm_map(dev, MAP_1); |
0a108d63 AK |
7283 | int slot2 = get_imsm_disk_slot(map2, idx); |
7284 | ||
089f9d79 | 7285 | if (slot2 < map2->num_members && slot2 >= 0) |
0a108d63 | 7286 | set_imsm_ord_tbl_ent(map2, slot2, |
1ace8403 AK |
7287 | idx | IMSM_ORD_REBUILD); |
7288 | } | |
f21e18ca | 7289 | if (map->failed_disk_num == 0xff) |
0556e1a2 DW |
7290 | map->failed_disk_num = slot; |
7291 | return 1; | |
7292 | } | |
7293 | ||
7294 | static void mark_missing(struct imsm_dev *dev, struct imsm_disk *disk, int idx) | |
7295 | { | |
7296 | mark_failure(dev, disk, idx); | |
7297 | ||
7298 | if (disk->scsi_id == __cpu_to_le32(~(__u32)0)) | |
7299 | return; | |
7300 | ||
47ee5a45 DW |
7301 | disk->scsi_id = __cpu_to_le32(~(__u32)0); |
7302 | memmove(&disk->serial[0], &disk->serial[1], MAX_RAID_SERIAL_LEN - 1); | |
7303 | } | |
7304 | ||
33414a01 DW |
7305 | static void handle_missing(struct intel_super *super, struct imsm_dev *dev) |
7306 | { | |
33414a01 | 7307 | struct dl *dl; |
33414a01 DW |
7308 | |
7309 | if (!super->missing) | |
7310 | return; | |
33414a01 | 7311 | |
79b68f1b PC |
7312 | /* When orom adds replacement for missing disk it does |
7313 | * not remove entry of missing disk, but just updates map with | |
7314 | * new added disk. So it is not enough just to test if there is | |
7315 | * any missing disk, we have to look if there are any failed disks | |
7316 | * in map to stop migration */ | |
7317 | ||
33414a01 | 7318 | dprintf("imsm: mark missing\n"); |
3d59f0c0 AK |
7319 | /* end process for initialization and rebuild only |
7320 | */ | |
7321 | if (is_gen_migration(dev) == 0) { | |
7322 | __u8 map_state; | |
7323 | int failed; | |
7324 | ||
7325 | failed = imsm_count_failed(super, dev, MAP_0); | |
7326 | map_state = imsm_check_degraded(super, dev, failed, MAP_0); | |
7327 | ||
79b68f1b PC |
7328 | if (failed) |
7329 | end_migration(dev, super, map_state); | |
3d59f0c0 | 7330 | } |
33414a01 DW |
7331 | for (dl = super->missing; dl; dl = dl->next) |
7332 | mark_missing(dev, &dl->disk, dl->index); | |
7333 | super->updates_pending++; | |
7334 | } | |
7335 | ||
f3871fdc AK |
7336 | static unsigned long long imsm_set_array_size(struct imsm_dev *dev, |
7337 | long long new_size) | |
70bdf0dc | 7338 | { |
238c0a71 | 7339 | int used_disks = imsm_num_data_members(dev, MAP_0); |
70bdf0dc AK |
7340 | unsigned long long array_blocks; |
7341 | struct imsm_map *map; | |
7342 | ||
7343 | if (used_disks == 0) { | |
7344 | /* when problems occures | |
7345 | * return current array_blocks value | |
7346 | */ | |
7347 | array_blocks = __le32_to_cpu(dev->size_high); | |
7348 | array_blocks = array_blocks << 32; | |
7349 | array_blocks += __le32_to_cpu(dev->size_low); | |
7350 | ||
7351 | return array_blocks; | |
7352 | } | |
7353 | ||
7354 | /* set array size in metadata | |
7355 | */ | |
f3871fdc AK |
7356 | if (new_size <= 0) { |
7357 | /* OLCE size change is caused by added disks | |
7358 | */ | |
7359 | map = get_imsm_map(dev, MAP_0); | |
7360 | array_blocks = blocks_per_member(map) * used_disks; | |
7361 | } else { | |
7362 | /* Online Volume Size Change | |
7363 | * Using available free space | |
7364 | */ | |
7365 | array_blocks = new_size; | |
7366 | } | |
70bdf0dc AK |
7367 | |
7368 | /* round array size down to closest MB | |
7369 | */ | |
7370 | array_blocks = (array_blocks >> SECT_PER_MB_SHIFT) << SECT_PER_MB_SHIFT; | |
7371 | dev->size_low = __cpu_to_le32((__u32)array_blocks); | |
7372 | dev->size_high = __cpu_to_le32((__u32)(array_blocks >> 32)); | |
7373 | ||
7374 | return array_blocks; | |
7375 | } | |
7376 | ||
28bce06f AK |
7377 | static void imsm_set_disk(struct active_array *a, int n, int state); |
7378 | ||
0e2d1a4e AK |
7379 | static void imsm_progress_container_reshape(struct intel_super *super) |
7380 | { | |
7381 | /* if no device has a migr_state, but some device has a | |
7382 | * different number of members than the previous device, start | |
7383 | * changing the number of devices in this device to match | |
7384 | * previous. | |
7385 | */ | |
7386 | struct imsm_super *mpb = super->anchor; | |
7387 | int prev_disks = -1; | |
7388 | int i; | |
1dfaa380 | 7389 | int copy_map_size; |
0e2d1a4e AK |
7390 | |
7391 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
7392 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
238c0a71 | 7393 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
0e2d1a4e AK |
7394 | struct imsm_map *map2; |
7395 | int prev_num_members; | |
0e2d1a4e AK |
7396 | |
7397 | if (dev->vol.migr_state) | |
7398 | return; | |
7399 | ||
7400 | if (prev_disks == -1) | |
7401 | prev_disks = map->num_members; | |
7402 | if (prev_disks == map->num_members) | |
7403 | continue; | |
7404 | ||
7405 | /* OK, this array needs to enter reshape mode. | |
7406 | * i.e it needs a migr_state | |
7407 | */ | |
7408 | ||
1dfaa380 | 7409 | copy_map_size = sizeof_imsm_map(map); |
0e2d1a4e AK |
7410 | prev_num_members = map->num_members; |
7411 | map->num_members = prev_disks; | |
7412 | dev->vol.migr_state = 1; | |
7413 | dev->vol.curr_migr_unit = 0; | |
ea672ee1 | 7414 | set_migr_type(dev, MIGR_GEN_MIGR); |
0e2d1a4e AK |
7415 | for (i = prev_num_members; |
7416 | i < map->num_members; i++) | |
7417 | set_imsm_ord_tbl_ent(map, i, i); | |
238c0a71 | 7418 | map2 = get_imsm_map(dev, MAP_1); |
0e2d1a4e | 7419 | /* Copy the current map */ |
1dfaa380 | 7420 | memcpy(map2, map, copy_map_size); |
0e2d1a4e AK |
7421 | map2->num_members = prev_num_members; |
7422 | ||
f3871fdc | 7423 | imsm_set_array_size(dev, -1); |
51d83f5d | 7424 | super->clean_migration_record_by_mdmon = 1; |
0e2d1a4e AK |
7425 | super->updates_pending++; |
7426 | } | |
7427 | } | |
7428 | ||
aad6f216 | 7429 | /* Handle dirty -> clean transititions, resync and reshape. Degraded and rebuild |
0c046afd DW |
7430 | * states are handled in imsm_set_disk() with one exception, when a |
7431 | * resync is stopped due to a new failure this routine will set the | |
7432 | * 'degraded' state for the array. | |
7433 | */ | |
01f157d7 | 7434 | static int imsm_set_array_state(struct active_array *a, int consistent) |
a862209d DW |
7435 | { |
7436 | int inst = a->info.container_member; | |
7437 | struct intel_super *super = a->container->sb; | |
949c47a0 | 7438 | struct imsm_dev *dev = get_imsm_dev(super, inst); |
238c0a71 | 7439 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
3b451610 AK |
7440 | int failed = imsm_count_failed(super, dev, MAP_0); |
7441 | __u8 map_state = imsm_check_degraded(super, dev, failed, MAP_0); | |
1e5c6983 | 7442 | __u32 blocks_per_unit; |
a862209d | 7443 | |
1af97990 AK |
7444 | if (dev->vol.migr_state && |
7445 | dev->vol.migr_type == MIGR_GEN_MIGR) { | |
7446 | /* array state change is blocked due to reshape action | |
aad6f216 N |
7447 | * We might need to |
7448 | * - abort the reshape (if last_checkpoint is 0 and action!= reshape) | |
7449 | * - finish the reshape (if last_checkpoint is big and action != reshape) | |
7450 | * - update curr_migr_unit | |
1af97990 | 7451 | */ |
aad6f216 N |
7452 | if (a->curr_action == reshape) { |
7453 | /* still reshaping, maybe update curr_migr_unit */ | |
633b5610 | 7454 | goto mark_checkpoint; |
aad6f216 N |
7455 | } else { |
7456 | if (a->last_checkpoint == 0 && a->prev_action == reshape) { | |
7457 | /* for some reason we aborted the reshape. | |
b66e591b AK |
7458 | * |
7459 | * disable automatic metadata rollback | |
7460 | * user action is required to recover process | |
aad6f216 | 7461 | */ |
b66e591b | 7462 | if (0) { |
238c0a71 AK |
7463 | struct imsm_map *map2 = |
7464 | get_imsm_map(dev, MAP_1); | |
7465 | dev->vol.migr_state = 0; | |
7466 | set_migr_type(dev, 0); | |
7467 | dev->vol.curr_migr_unit = 0; | |
7468 | memcpy(map, map2, | |
7469 | sizeof_imsm_map(map2)); | |
7470 | super->updates_pending++; | |
b66e591b | 7471 | } |
aad6f216 N |
7472 | } |
7473 | if (a->last_checkpoint >= a->info.component_size) { | |
7474 | unsigned long long array_blocks; | |
7475 | int used_disks; | |
e154ced3 | 7476 | struct mdinfo *mdi; |
aad6f216 | 7477 | |
238c0a71 | 7478 | used_disks = imsm_num_data_members(dev, MAP_0); |
d55adef9 AK |
7479 | if (used_disks > 0) { |
7480 | array_blocks = | |
5551b113 | 7481 | blocks_per_member(map) * |
d55adef9 AK |
7482 | used_disks; |
7483 | /* round array size down to closest MB | |
7484 | */ | |
7485 | array_blocks = (array_blocks | |
7486 | >> SECT_PER_MB_SHIFT) | |
7487 | << SECT_PER_MB_SHIFT; | |
d55adef9 AK |
7488 | a->info.custom_array_size = array_blocks; |
7489 | /* encourage manager to update array | |
7490 | * size | |
7491 | */ | |
e154ced3 | 7492 | |
d55adef9 | 7493 | a->check_reshape = 1; |
633b5610 | 7494 | } |
e154ced3 AK |
7495 | /* finalize online capacity expansion/reshape */ |
7496 | for (mdi = a->info.devs; mdi; mdi = mdi->next) | |
7497 | imsm_set_disk(a, | |
7498 | mdi->disk.raid_disk, | |
7499 | mdi->curr_state); | |
7500 | ||
0e2d1a4e | 7501 | imsm_progress_container_reshape(super); |
e154ced3 | 7502 | } |
aad6f216 | 7503 | } |
1af97990 AK |
7504 | } |
7505 | ||
47ee5a45 | 7506 | /* before we activate this array handle any missing disks */ |
33414a01 DW |
7507 | if (consistent == 2) |
7508 | handle_missing(super, dev); | |
1e5c6983 | 7509 | |
0c046afd | 7510 | if (consistent == 2 && |
b7941fd6 | 7511 | (!is_resync_complete(&a->info) || |
0c046afd DW |
7512 | map_state != IMSM_T_STATE_NORMAL || |
7513 | dev->vol.migr_state)) | |
01f157d7 | 7514 | consistent = 0; |
272906ef | 7515 | |
b7941fd6 | 7516 | if (is_resync_complete(&a->info)) { |
0c046afd | 7517 | /* complete intialization / resync, |
0556e1a2 DW |
7518 | * recovery and interrupted recovery is completed in |
7519 | * ->set_disk | |
0c046afd DW |
7520 | */ |
7521 | if (is_resyncing(dev)) { | |
7522 | dprintf("imsm: mark resync done\n"); | |
809da78e | 7523 | end_migration(dev, super, map_state); |
115c3803 | 7524 | super->updates_pending++; |
484240d8 | 7525 | a->last_checkpoint = 0; |
115c3803 | 7526 | } |
b9172665 AK |
7527 | } else if ((!is_resyncing(dev) && !failed) && |
7528 | (imsm_reshape_blocks_arrays_changes(super) == 0)) { | |
0c046afd | 7529 | /* mark the start of the init process if nothing is failed */ |
b7941fd6 | 7530 | dprintf("imsm: mark resync start\n"); |
1484e727 | 7531 | if (map->map_state == IMSM_T_STATE_UNINITIALIZED) |
8e59f3d8 | 7532 | migrate(dev, super, IMSM_T_STATE_NORMAL, MIGR_INIT); |
1484e727 | 7533 | else |
8e59f3d8 | 7534 | migrate(dev, super, IMSM_T_STATE_NORMAL, MIGR_REPAIR); |
3393c6af | 7535 | super->updates_pending++; |
115c3803 | 7536 | } |
a862209d | 7537 | |
633b5610 | 7538 | mark_checkpoint: |
5b83bacf AK |
7539 | /* skip checkpointing for general migration, |
7540 | * it is controlled in mdadm | |
7541 | */ | |
7542 | if (is_gen_migration(dev)) | |
7543 | goto skip_mark_checkpoint; | |
7544 | ||
1e5c6983 | 7545 | /* check if we can update curr_migr_unit from resync_start, recovery_start */ |
c47b0ff6 | 7546 | blocks_per_unit = blocks_per_migr_unit(super, dev); |
4f0a7acc | 7547 | if (blocks_per_unit) { |
1e5c6983 DW |
7548 | __u32 units32; |
7549 | __u64 units; | |
7550 | ||
4f0a7acc | 7551 | units = a->last_checkpoint / blocks_per_unit; |
1e5c6983 DW |
7552 | units32 = units; |
7553 | ||
7554 | /* check that we did not overflow 32-bits, and that | |
7555 | * curr_migr_unit needs updating | |
7556 | */ | |
7557 | if (units32 == units && | |
bfd80a56 | 7558 | units32 != 0 && |
1e5c6983 DW |
7559 | __le32_to_cpu(dev->vol.curr_migr_unit) != units32) { |
7560 | dprintf("imsm: mark checkpoint (%u)\n", units32); | |
7561 | dev->vol.curr_migr_unit = __cpu_to_le32(units32); | |
7562 | super->updates_pending++; | |
7563 | } | |
7564 | } | |
f8f603f1 | 7565 | |
5b83bacf | 7566 | skip_mark_checkpoint: |
3393c6af | 7567 | /* mark dirty / clean */ |
0c046afd | 7568 | if (dev->vol.dirty != !consistent) { |
b7941fd6 | 7569 | dprintf("imsm: mark '%s'\n", consistent ? "clean" : "dirty"); |
0c046afd DW |
7570 | if (consistent) |
7571 | dev->vol.dirty = 0; | |
7572 | else | |
7573 | dev->vol.dirty = 1; | |
a862209d DW |
7574 | super->updates_pending++; |
7575 | } | |
28bce06f | 7576 | |
01f157d7 | 7577 | return consistent; |
a862209d DW |
7578 | } |
7579 | ||
8d45d196 | 7580 | static void imsm_set_disk(struct active_array *a, int n, int state) |
845dea95 | 7581 | { |
8d45d196 DW |
7582 | int inst = a->info.container_member; |
7583 | struct intel_super *super = a->container->sb; | |
949c47a0 | 7584 | struct imsm_dev *dev = get_imsm_dev(super, inst); |
238c0a71 | 7585 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
8d45d196 | 7586 | struct imsm_disk *disk; |
7ce05701 LD |
7587 | struct mdinfo *mdi; |
7588 | int recovery_not_finished = 0; | |
0c046afd | 7589 | int failed; |
b10b37b8 | 7590 | __u32 ord; |
0c046afd | 7591 | __u8 map_state; |
8d45d196 DW |
7592 | |
7593 | if (n > map->num_members) | |
e12b3daa | 7594 | pr_err("imsm: set_disk %d out of range 0..%d\n", |
8d45d196 DW |
7595 | n, map->num_members - 1); |
7596 | ||
7597 | if (n < 0) | |
7598 | return; | |
7599 | ||
4e6e574a | 7600 | dprintf("imsm: set_disk %d:%x\n", n, state); |
8d45d196 | 7601 | |
238c0a71 | 7602 | ord = get_imsm_ord_tbl_ent(dev, n, MAP_0); |
b10b37b8 | 7603 | disk = get_imsm_disk(super, ord_to_idx(ord)); |
8d45d196 | 7604 | |
5802a811 | 7605 | /* check for new failures */ |
0556e1a2 DW |
7606 | if (state & DS_FAULTY) { |
7607 | if (mark_failure(dev, disk, ord_to_idx(ord))) | |
7608 | super->updates_pending++; | |
8d45d196 | 7609 | } |
47ee5a45 | 7610 | |
19859edc | 7611 | /* check if in_sync */ |
0556e1a2 | 7612 | if (state & DS_INSYNC && ord & IMSM_ORD_REBUILD && is_rebuilding(dev)) { |
238c0a71 | 7613 | struct imsm_map *migr_map = get_imsm_map(dev, MAP_1); |
b10b37b8 DW |
7614 | |
7615 | set_imsm_ord_tbl_ent(migr_map, n, ord_to_idx(ord)); | |
19859edc DW |
7616 | super->updates_pending++; |
7617 | } | |
8d45d196 | 7618 | |
3b451610 AK |
7619 | failed = imsm_count_failed(super, dev, MAP_0); |
7620 | map_state = imsm_check_degraded(super, dev, failed, MAP_0); | |
5802a811 | 7621 | |
0c046afd | 7622 | /* check if recovery complete, newly degraded, or failed */ |
94002678 AK |
7623 | dprintf("imsm: Detected transition to state "); |
7624 | switch (map_state) { | |
7625 | case IMSM_T_STATE_NORMAL: /* transition to normal state */ | |
7626 | dprintf("normal: "); | |
7627 | if (is_rebuilding(dev)) { | |
1ade5cc1 | 7628 | dprintf_cont("while rebuilding"); |
7ce05701 LD |
7629 | /* check if recovery is really finished */ |
7630 | for (mdi = a->info.devs; mdi ; mdi = mdi->next) | |
7631 | if (mdi->recovery_start != MaxSector) { | |
7632 | recovery_not_finished = 1; | |
7633 | break; | |
7634 | } | |
7635 | if (recovery_not_finished) { | |
1ade5cc1 N |
7636 | dprintf_cont("\n"); |
7637 | dprintf("Rebuild has not finished yet, state not changed"); | |
7ce05701 LD |
7638 | if (a->last_checkpoint < mdi->recovery_start) { |
7639 | a->last_checkpoint = mdi->recovery_start; | |
7640 | super->updates_pending++; | |
7641 | } | |
7642 | break; | |
7643 | } | |
94002678 | 7644 | end_migration(dev, super, map_state); |
238c0a71 | 7645 | map = get_imsm_map(dev, MAP_0); |
94002678 AK |
7646 | map->failed_disk_num = ~0; |
7647 | super->updates_pending++; | |
7648 | a->last_checkpoint = 0; | |
7649 | break; | |
7650 | } | |
7651 | if (is_gen_migration(dev)) { | |
1ade5cc1 | 7652 | dprintf_cont("while general migration"); |
bf2f0071 | 7653 | if (a->last_checkpoint >= a->info.component_size) |
809da78e | 7654 | end_migration(dev, super, map_state); |
94002678 AK |
7655 | else |
7656 | map->map_state = map_state; | |
238c0a71 | 7657 | map = get_imsm_map(dev, MAP_0); |
28bce06f | 7658 | map->failed_disk_num = ~0; |
94002678 | 7659 | super->updates_pending++; |
bf2f0071 | 7660 | break; |
94002678 AK |
7661 | } |
7662 | break; | |
7663 | case IMSM_T_STATE_DEGRADED: /* transition to degraded state */ | |
1ade5cc1 | 7664 | dprintf_cont("degraded: "); |
089f9d79 | 7665 | if (map->map_state != map_state && !dev->vol.migr_state) { |
1ade5cc1 | 7666 | dprintf_cont("mark degraded"); |
94002678 AK |
7667 | map->map_state = map_state; |
7668 | super->updates_pending++; | |
7669 | a->last_checkpoint = 0; | |
7670 | break; | |
7671 | } | |
7672 | if (is_rebuilding(dev)) { | |
1ade5cc1 | 7673 | dprintf_cont("while rebuilding."); |
94002678 | 7674 | if (map->map_state != map_state) { |
1ade5cc1 | 7675 | dprintf_cont(" Map state change"); |
94002678 AK |
7676 | end_migration(dev, super, map_state); |
7677 | super->updates_pending++; | |
7678 | } | |
7679 | break; | |
7680 | } | |
7681 | if (is_gen_migration(dev)) { | |
1ade5cc1 | 7682 | dprintf_cont("while general migration"); |
bf2f0071 | 7683 | if (a->last_checkpoint >= a->info.component_size) |
809da78e | 7684 | end_migration(dev, super, map_state); |
94002678 AK |
7685 | else { |
7686 | map->map_state = map_state; | |
3b451610 | 7687 | manage_second_map(super, dev); |
94002678 AK |
7688 | } |
7689 | super->updates_pending++; | |
bf2f0071 | 7690 | break; |
28bce06f | 7691 | } |
6ce1fbf1 | 7692 | if (is_initializing(dev)) { |
1ade5cc1 | 7693 | dprintf_cont("while initialization."); |
6ce1fbf1 AK |
7694 | map->map_state = map_state; |
7695 | super->updates_pending++; | |
7696 | break; | |
7697 | } | |
94002678 AK |
7698 | break; |
7699 | case IMSM_T_STATE_FAILED: /* transition to failed state */ | |
1ade5cc1 | 7700 | dprintf_cont("failed: "); |
94002678 | 7701 | if (is_gen_migration(dev)) { |
1ade5cc1 | 7702 | dprintf_cont("while general migration"); |
94002678 AK |
7703 | map->map_state = map_state; |
7704 | super->updates_pending++; | |
7705 | break; | |
7706 | } | |
7707 | if (map->map_state != map_state) { | |
1ade5cc1 | 7708 | dprintf_cont("mark failed"); |
94002678 AK |
7709 | end_migration(dev, super, map_state); |
7710 | super->updates_pending++; | |
7711 | a->last_checkpoint = 0; | |
7712 | break; | |
7713 | } | |
7714 | break; | |
7715 | default: | |
1ade5cc1 | 7716 | dprintf_cont("state %i\n", map_state); |
5802a811 | 7717 | } |
1ade5cc1 | 7718 | dprintf_cont("\n"); |
845dea95 NB |
7719 | } |
7720 | ||
f796af5d | 7721 | static int store_imsm_mpb(int fd, struct imsm_super *mpb) |
c2a1e7da | 7722 | { |
f796af5d | 7723 | void *buf = mpb; |
c2a1e7da DW |
7724 | __u32 mpb_size = __le32_to_cpu(mpb->mpb_size); |
7725 | unsigned long long dsize; | |
7726 | unsigned long long sectors; | |
f36a9ecd | 7727 | unsigned int sector_size; |
c2a1e7da | 7728 | |
f36a9ecd | 7729 | get_dev_sector_size(fd, NULL, §or_size); |
c2a1e7da DW |
7730 | get_dev_size(fd, NULL, &dsize); |
7731 | ||
f36a9ecd | 7732 | if (mpb_size > sector_size) { |
272f648f | 7733 | /* -1 to account for anchor */ |
f36a9ecd | 7734 | sectors = mpb_sectors(mpb, sector_size) - 1; |
c2a1e7da | 7735 | |
272f648f | 7736 | /* write the extended mpb to the sectors preceeding the anchor */ |
f36a9ecd PB |
7737 | if (lseek64(fd, dsize - (sector_size * (2 + sectors)), |
7738 | SEEK_SET) < 0) | |
272f648f | 7739 | return 1; |
c2a1e7da | 7740 | |
f36a9ecd PB |
7741 | if ((unsigned long long)write(fd, buf + sector_size, |
7742 | sector_size * sectors) != sector_size * sectors) | |
272f648f DW |
7743 | return 1; |
7744 | } | |
c2a1e7da | 7745 | |
272f648f | 7746 | /* first block is stored on second to last sector of the disk */ |
f36a9ecd | 7747 | if (lseek64(fd, dsize - (sector_size * 2), SEEK_SET) < 0) |
c2a1e7da DW |
7748 | return 1; |
7749 | ||
f36a9ecd | 7750 | if (write(fd, buf, sector_size) != sector_size) |
c2a1e7da DW |
7751 | return 1; |
7752 | ||
c2a1e7da DW |
7753 | return 0; |
7754 | } | |
7755 | ||
2e735d19 | 7756 | static void imsm_sync_metadata(struct supertype *container) |
845dea95 | 7757 | { |
2e735d19 | 7758 | struct intel_super *super = container->sb; |
c2a1e7da | 7759 | |
1a64be56 | 7760 | dprintf("sync metadata: %d\n", super->updates_pending); |
c2a1e7da DW |
7761 | if (!super->updates_pending) |
7762 | return; | |
7763 | ||
36988a3d | 7764 | write_super_imsm(container, 0); |
c2a1e7da DW |
7765 | |
7766 | super->updates_pending = 0; | |
845dea95 NB |
7767 | } |
7768 | ||
272906ef DW |
7769 | static struct dl *imsm_readd(struct intel_super *super, int idx, struct active_array *a) |
7770 | { | |
7771 | struct imsm_dev *dev = get_imsm_dev(super, a->info.container_member); | |
238c0a71 | 7772 | int i = get_imsm_disk_idx(dev, idx, MAP_X); |
272906ef DW |
7773 | struct dl *dl; |
7774 | ||
7775 | for (dl = super->disks; dl; dl = dl->next) | |
7776 | if (dl->index == i) | |
7777 | break; | |
7778 | ||
25ed7e59 | 7779 | if (dl && is_failed(&dl->disk)) |
272906ef DW |
7780 | dl = NULL; |
7781 | ||
7782 | if (dl) | |
1ade5cc1 | 7783 | dprintf("found %x:%x\n", dl->major, dl->minor); |
272906ef DW |
7784 | |
7785 | return dl; | |
7786 | } | |
7787 | ||
a20d2ba5 | 7788 | static struct dl *imsm_add_spare(struct intel_super *super, int slot, |
8ba77d32 AK |
7789 | struct active_array *a, int activate_new, |
7790 | struct mdinfo *additional_test_list) | |
272906ef DW |
7791 | { |
7792 | struct imsm_dev *dev = get_imsm_dev(super, a->info.container_member); | |
238c0a71 | 7793 | int idx = get_imsm_disk_idx(dev, slot, MAP_X); |
a20d2ba5 DW |
7794 | struct imsm_super *mpb = super->anchor; |
7795 | struct imsm_map *map; | |
272906ef DW |
7796 | unsigned long long pos; |
7797 | struct mdinfo *d; | |
7798 | struct extent *ex; | |
a20d2ba5 | 7799 | int i, j; |
272906ef | 7800 | int found; |
569cc43f DW |
7801 | __u32 array_start = 0; |
7802 | __u32 array_end = 0; | |
272906ef | 7803 | struct dl *dl; |
6c932028 | 7804 | struct mdinfo *test_list; |
272906ef DW |
7805 | |
7806 | for (dl = super->disks; dl; dl = dl->next) { | |
7807 | /* If in this array, skip */ | |
7808 | for (d = a->info.devs ; d ; d = d->next) | |
e553d2a4 DW |
7809 | if (d->state_fd >= 0 && |
7810 | d->disk.major == dl->major && | |
272906ef | 7811 | d->disk.minor == dl->minor) { |
8ba77d32 AK |
7812 | dprintf("%x:%x already in array\n", |
7813 | dl->major, dl->minor); | |
272906ef DW |
7814 | break; |
7815 | } | |
7816 | if (d) | |
7817 | continue; | |
6c932028 AK |
7818 | test_list = additional_test_list; |
7819 | while (test_list) { | |
7820 | if (test_list->disk.major == dl->major && | |
7821 | test_list->disk.minor == dl->minor) { | |
8ba77d32 AK |
7822 | dprintf("%x:%x already in additional test list\n", |
7823 | dl->major, dl->minor); | |
7824 | break; | |
7825 | } | |
6c932028 | 7826 | test_list = test_list->next; |
8ba77d32 | 7827 | } |
6c932028 | 7828 | if (test_list) |
8ba77d32 | 7829 | continue; |
272906ef | 7830 | |
e553d2a4 | 7831 | /* skip in use or failed drives */ |
25ed7e59 | 7832 | if (is_failed(&dl->disk) || idx == dl->index || |
df474657 DW |
7833 | dl->index == -2) { |
7834 | dprintf("%x:%x status (failed: %d index: %d)\n", | |
25ed7e59 | 7835 | dl->major, dl->minor, is_failed(&dl->disk), idx); |
9a1608e5 DW |
7836 | continue; |
7837 | } | |
7838 | ||
a20d2ba5 DW |
7839 | /* skip pure spares when we are looking for partially |
7840 | * assimilated drives | |
7841 | */ | |
7842 | if (dl->index == -1 && !activate_new) | |
7843 | continue; | |
7844 | ||
272906ef | 7845 | /* Does this unused device have the requisite free space? |
a20d2ba5 | 7846 | * It needs to be able to cover all member volumes |
272906ef DW |
7847 | */ |
7848 | ex = get_extents(super, dl); | |
7849 | if (!ex) { | |
7850 | dprintf("cannot get extents\n"); | |
7851 | continue; | |
7852 | } | |
a20d2ba5 DW |
7853 | for (i = 0; i < mpb->num_raid_devs; i++) { |
7854 | dev = get_imsm_dev(super, i); | |
238c0a71 | 7855 | map = get_imsm_map(dev, MAP_0); |
272906ef | 7856 | |
a20d2ba5 DW |
7857 | /* check if this disk is already a member of |
7858 | * this array | |
272906ef | 7859 | */ |
620b1713 | 7860 | if (get_imsm_disk_slot(map, dl->index) >= 0) |
a20d2ba5 DW |
7861 | continue; |
7862 | ||
7863 | found = 0; | |
7864 | j = 0; | |
7865 | pos = 0; | |
5551b113 | 7866 | array_start = pba_of_lba0(map); |
329c8278 | 7867 | array_end = array_start + |
5551b113 | 7868 | blocks_per_member(map) - 1; |
a20d2ba5 DW |
7869 | |
7870 | do { | |
7871 | /* check that we can start at pba_of_lba0 with | |
7872 | * blocks_per_member of space | |
7873 | */ | |
329c8278 | 7874 | if (array_start >= pos && array_end < ex[j].start) { |
a20d2ba5 DW |
7875 | found = 1; |
7876 | break; | |
7877 | } | |
7878 | pos = ex[j].start + ex[j].size; | |
7879 | j++; | |
7880 | } while (ex[j-1].size); | |
7881 | ||
7882 | if (!found) | |
272906ef | 7883 | break; |
a20d2ba5 | 7884 | } |
272906ef DW |
7885 | |
7886 | free(ex); | |
a20d2ba5 | 7887 | if (i < mpb->num_raid_devs) { |
329c8278 DW |
7888 | dprintf("%x:%x does not have %u to %u available\n", |
7889 | dl->major, dl->minor, array_start, array_end); | |
272906ef DW |
7890 | /* No room */ |
7891 | continue; | |
a20d2ba5 DW |
7892 | } |
7893 | return dl; | |
272906ef DW |
7894 | } |
7895 | ||
7896 | return dl; | |
7897 | } | |
7898 | ||
95d07a2c LM |
7899 | static int imsm_rebuild_allowed(struct supertype *cont, int dev_idx, int failed) |
7900 | { | |
7901 | struct imsm_dev *dev2; | |
7902 | struct imsm_map *map; | |
7903 | struct dl *idisk; | |
7904 | int slot; | |
7905 | int idx; | |
7906 | __u8 state; | |
7907 | ||
7908 | dev2 = get_imsm_dev(cont->sb, dev_idx); | |
7909 | if (dev2) { | |
238c0a71 | 7910 | state = imsm_check_degraded(cont->sb, dev2, failed, MAP_0); |
95d07a2c | 7911 | if (state == IMSM_T_STATE_FAILED) { |
238c0a71 | 7912 | map = get_imsm_map(dev2, MAP_0); |
95d07a2c LM |
7913 | if (!map) |
7914 | return 1; | |
7915 | for (slot = 0; slot < map->num_members; slot++) { | |
7916 | /* | |
7917 | * Check if failed disks are deleted from intel | |
7918 | * disk list or are marked to be deleted | |
7919 | */ | |
238c0a71 | 7920 | idx = get_imsm_disk_idx(dev2, slot, MAP_X); |
95d07a2c LM |
7921 | idisk = get_imsm_dl_disk(cont->sb, idx); |
7922 | /* | |
7923 | * Do not rebuild the array if failed disks | |
7924 | * from failed sub-array are not removed from | |
7925 | * container. | |
7926 | */ | |
7927 | if (idisk && | |
7928 | is_failed(&idisk->disk) && | |
7929 | (idisk->action != DISK_REMOVE)) | |
7930 | return 0; | |
7931 | } | |
7932 | } | |
7933 | } | |
7934 | return 1; | |
7935 | } | |
7936 | ||
88758e9d DW |
7937 | static struct mdinfo *imsm_activate_spare(struct active_array *a, |
7938 | struct metadata_update **updates) | |
7939 | { | |
7940 | /** | |
d23fe947 DW |
7941 | * Find a device with unused free space and use it to replace a |
7942 | * failed/vacant region in an array. We replace failed regions one a | |
7943 | * array at a time. The result is that a new spare disk will be added | |
7944 | * to the first failed array and after the monitor has finished | |
7945 | * propagating failures the remainder will be consumed. | |
88758e9d | 7946 | * |
d23fe947 DW |
7947 | * FIXME add a capability for mdmon to request spares from another |
7948 | * container. | |
88758e9d DW |
7949 | */ |
7950 | ||
7951 | struct intel_super *super = a->container->sb; | |
88758e9d | 7952 | int inst = a->info.container_member; |
949c47a0 | 7953 | struct imsm_dev *dev = get_imsm_dev(super, inst); |
238c0a71 | 7954 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
88758e9d DW |
7955 | int failed = a->info.array.raid_disks; |
7956 | struct mdinfo *rv = NULL; | |
7957 | struct mdinfo *d; | |
7958 | struct mdinfo *di; | |
7959 | struct metadata_update *mu; | |
7960 | struct dl *dl; | |
7961 | struct imsm_update_activate_spare *u; | |
7962 | int num_spares = 0; | |
7963 | int i; | |
95d07a2c | 7964 | int allowed; |
88758e9d DW |
7965 | |
7966 | for (d = a->info.devs ; d ; d = d->next) { | |
7967 | if ((d->curr_state & DS_FAULTY) && | |
7968 | d->state_fd >= 0) | |
7969 | /* wait for Removal to happen */ | |
7970 | return NULL; | |
7971 | if (d->state_fd >= 0) | |
7972 | failed--; | |
7973 | } | |
7974 | ||
7975 | dprintf("imsm: activate spare: inst=%d failed=%d (%d) level=%d\n", | |
7976 | inst, failed, a->info.array.raid_disks, a->info.array.level); | |
1af97990 | 7977 | |
e2962bfc AK |
7978 | if (imsm_reshape_blocks_arrays_changes(super)) |
7979 | return NULL; | |
1af97990 | 7980 | |
fc8ca064 AK |
7981 | /* Cannot activate another spare if rebuild is in progress already |
7982 | */ | |
7983 | if (is_rebuilding(dev)) { | |
7a862a02 | 7984 | dprintf("imsm: No spare activation allowed. Rebuild in progress already.\n"); |
fc8ca064 AK |
7985 | return NULL; |
7986 | } | |
7987 | ||
89c67882 AK |
7988 | if (a->info.array.level == 4) |
7989 | /* No repair for takeovered array | |
7990 | * imsm doesn't support raid4 | |
7991 | */ | |
7992 | return NULL; | |
7993 | ||
3b451610 AK |
7994 | if (imsm_check_degraded(super, dev, failed, MAP_0) != |
7995 | IMSM_T_STATE_DEGRADED) | |
88758e9d DW |
7996 | return NULL; |
7997 | ||
83ca7d45 AP |
7998 | if (get_imsm_map(dev, MAP_0)->map_state == IMSM_T_STATE_UNINITIALIZED) { |
7999 | dprintf("imsm: No spare activation allowed. Volume is not initialized.\n"); | |
8000 | return NULL; | |
8001 | } | |
8002 | ||
95d07a2c LM |
8003 | /* |
8004 | * If there are any failed disks check state of the other volume. | |
8005 | * Block rebuild if the another one is failed until failed disks | |
8006 | * are removed from container. | |
8007 | */ | |
8008 | if (failed) { | |
7a862a02 | 8009 | dprintf("found failed disks in %.*s, check if there anotherfailed sub-array.\n", |
c4acd1e5 | 8010 | MAX_RAID_SERIAL_LEN, dev->volume); |
95d07a2c LM |
8011 | /* check if states of the other volumes allow for rebuild */ |
8012 | for (i = 0; i < super->anchor->num_raid_devs; i++) { | |
8013 | if (i != inst) { | |
8014 | allowed = imsm_rebuild_allowed(a->container, | |
8015 | i, failed); | |
8016 | if (!allowed) | |
8017 | return NULL; | |
8018 | } | |
8019 | } | |
8020 | } | |
8021 | ||
88758e9d | 8022 | /* For each slot, if it is not working, find a spare */ |
88758e9d DW |
8023 | for (i = 0; i < a->info.array.raid_disks; i++) { |
8024 | for (d = a->info.devs ; d ; d = d->next) | |
8025 | if (d->disk.raid_disk == i) | |
8026 | break; | |
8027 | dprintf("found %d: %p %x\n", i, d, d?d->curr_state:0); | |
8028 | if (d && (d->state_fd >= 0)) | |
8029 | continue; | |
8030 | ||
272906ef | 8031 | /* |
a20d2ba5 DW |
8032 | * OK, this device needs recovery. Try to re-add the |
8033 | * previous occupant of this slot, if this fails see if | |
8034 | * we can continue the assimilation of a spare that was | |
8035 | * partially assimilated, finally try to activate a new | |
8036 | * spare. | |
272906ef DW |
8037 | */ |
8038 | dl = imsm_readd(super, i, a); | |
8039 | if (!dl) | |
b303fe21 | 8040 | dl = imsm_add_spare(super, i, a, 0, rv); |
a20d2ba5 | 8041 | if (!dl) |
b303fe21 | 8042 | dl = imsm_add_spare(super, i, a, 1, rv); |
272906ef DW |
8043 | if (!dl) |
8044 | continue; | |
1011e834 | 8045 | |
272906ef | 8046 | /* found a usable disk with enough space */ |
503975b9 | 8047 | di = xcalloc(1, sizeof(*di)); |
272906ef DW |
8048 | |
8049 | /* dl->index will be -1 in the case we are activating a | |
8050 | * pristine spare. imsm_process_update() will create a | |
8051 | * new index in this case. Once a disk is found to be | |
8052 | * failed in all member arrays it is kicked from the | |
8053 | * metadata | |
8054 | */ | |
8055 | di->disk.number = dl->index; | |
d23fe947 | 8056 | |
272906ef DW |
8057 | /* (ab)use di->devs to store a pointer to the device |
8058 | * we chose | |
8059 | */ | |
8060 | di->devs = (struct mdinfo *) dl; | |
8061 | ||
8062 | di->disk.raid_disk = i; | |
8063 | di->disk.major = dl->major; | |
8064 | di->disk.minor = dl->minor; | |
8065 | di->disk.state = 0; | |
d23534e4 | 8066 | di->recovery_start = 0; |
5551b113 | 8067 | di->data_offset = pba_of_lba0(map); |
272906ef DW |
8068 | di->component_size = a->info.component_size; |
8069 | di->container_member = inst; | |
148acb7b | 8070 | super->random = random32(); |
272906ef DW |
8071 | di->next = rv; |
8072 | rv = di; | |
8073 | num_spares++; | |
8074 | dprintf("%x:%x to be %d at %llu\n", dl->major, dl->minor, | |
8075 | i, di->data_offset); | |
88758e9d DW |
8076 | } |
8077 | ||
8078 | if (!rv) | |
8079 | /* No spares found */ | |
8080 | return rv; | |
8081 | /* Now 'rv' has a list of devices to return. | |
8082 | * Create a metadata_update record to update the | |
8083 | * disk_ord_tbl for the array | |
8084 | */ | |
503975b9 | 8085 | mu = xmalloc(sizeof(*mu)); |
1011e834 | 8086 | mu->buf = xcalloc(num_spares, |
503975b9 | 8087 | sizeof(struct imsm_update_activate_spare)); |
88758e9d | 8088 | mu->space = NULL; |
cb23f1f4 | 8089 | mu->space_list = NULL; |
88758e9d DW |
8090 | mu->len = sizeof(struct imsm_update_activate_spare) * num_spares; |
8091 | mu->next = *updates; | |
8092 | u = (struct imsm_update_activate_spare *) mu->buf; | |
8093 | ||
8094 | for (di = rv ; di ; di = di->next) { | |
8095 | u->type = update_activate_spare; | |
d23fe947 DW |
8096 | u->dl = (struct dl *) di->devs; |
8097 | di->devs = NULL; | |
88758e9d DW |
8098 | u->slot = di->disk.raid_disk; |
8099 | u->array = inst; | |
8100 | u->next = u + 1; | |
8101 | u++; | |
8102 | } | |
8103 | (u-1)->next = NULL; | |
8104 | *updates = mu; | |
8105 | ||
8106 | return rv; | |
8107 | } | |
8108 | ||
54c2c1ea | 8109 | static int disks_overlap(struct intel_super *super, int idx, struct imsm_update_create_array *u) |
8273f55e | 8110 | { |
54c2c1ea | 8111 | struct imsm_dev *dev = get_imsm_dev(super, idx); |
238c0a71 AK |
8112 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
8113 | struct imsm_map *new_map = get_imsm_map(&u->dev, MAP_0); | |
54c2c1ea DW |
8114 | struct disk_info *inf = get_disk_info(u); |
8115 | struct imsm_disk *disk; | |
8273f55e DW |
8116 | int i; |
8117 | int j; | |
8273f55e | 8118 | |
54c2c1ea | 8119 | for (i = 0; i < map->num_members; i++) { |
238c0a71 | 8120 | disk = get_imsm_disk(super, get_imsm_disk_idx(dev, i, MAP_X)); |
54c2c1ea DW |
8121 | for (j = 0; j < new_map->num_members; j++) |
8122 | if (serialcmp(disk->serial, inf[j].serial) == 0) | |
8273f55e DW |
8123 | return 1; |
8124 | } | |
8125 | ||
8126 | return 0; | |
8127 | } | |
8128 | ||
1a64be56 LM |
8129 | static struct dl *get_disk_super(struct intel_super *super, int major, int minor) |
8130 | { | |
594dc1b8 JS |
8131 | struct dl *dl; |
8132 | ||
1a64be56 | 8133 | for (dl = super->disks; dl; dl = dl->next) |
089f9d79 | 8134 | if (dl->major == major && dl->minor == minor) |
1a64be56 LM |
8135 | return dl; |
8136 | return NULL; | |
8137 | } | |
8138 | ||
8139 | static int remove_disk_super(struct intel_super *super, int major, int minor) | |
8140 | { | |
594dc1b8 | 8141 | struct dl *prev; |
1a64be56 LM |
8142 | struct dl *dl; |
8143 | ||
8144 | prev = NULL; | |
8145 | for (dl = super->disks; dl; dl = dl->next) { | |
089f9d79 | 8146 | if (dl->major == major && dl->minor == minor) { |
1a64be56 LM |
8147 | /* remove */ |
8148 | if (prev) | |
8149 | prev->next = dl->next; | |
8150 | else | |
8151 | super->disks = dl->next; | |
8152 | dl->next = NULL; | |
8153 | __free_imsm_disk(dl); | |
1ade5cc1 | 8154 | dprintf("removed %x:%x\n", major, minor); |
1a64be56 LM |
8155 | break; |
8156 | } | |
8157 | prev = dl; | |
8158 | } | |
8159 | return 0; | |
8160 | } | |
8161 | ||
f21e18ca | 8162 | static void imsm_delete(struct intel_super *super, struct dl **dlp, unsigned index); |
ae6aad82 | 8163 | |
1a64be56 LM |
8164 | static int add_remove_disk_update(struct intel_super *super) |
8165 | { | |
8166 | int check_degraded = 0; | |
594dc1b8 JS |
8167 | struct dl *disk; |
8168 | ||
1a64be56 LM |
8169 | /* add/remove some spares to/from the metadata/contrainer */ |
8170 | while (super->disk_mgmt_list) { | |
8171 | struct dl *disk_cfg; | |
8172 | ||
8173 | disk_cfg = super->disk_mgmt_list; | |
8174 | super->disk_mgmt_list = disk_cfg->next; | |
8175 | disk_cfg->next = NULL; | |
8176 | ||
8177 | if (disk_cfg->action == DISK_ADD) { | |
8178 | disk_cfg->next = super->disks; | |
8179 | super->disks = disk_cfg; | |
8180 | check_degraded = 1; | |
1ade5cc1 N |
8181 | dprintf("added %x:%x\n", |
8182 | disk_cfg->major, disk_cfg->minor); | |
1a64be56 LM |
8183 | } else if (disk_cfg->action == DISK_REMOVE) { |
8184 | dprintf("Disk remove action processed: %x.%x\n", | |
8185 | disk_cfg->major, disk_cfg->minor); | |
8186 | disk = get_disk_super(super, | |
8187 | disk_cfg->major, | |
8188 | disk_cfg->minor); | |
8189 | if (disk) { | |
8190 | /* store action status */ | |
8191 | disk->action = DISK_REMOVE; | |
8192 | /* remove spare disks only */ | |
8193 | if (disk->index == -1) { | |
8194 | remove_disk_super(super, | |
8195 | disk_cfg->major, | |
8196 | disk_cfg->minor); | |
8197 | } | |
8198 | } | |
8199 | /* release allocate disk structure */ | |
8200 | __free_imsm_disk(disk_cfg); | |
8201 | } | |
8202 | } | |
8203 | return check_degraded; | |
8204 | } | |
8205 | ||
a29911da PC |
8206 | static int apply_reshape_migration_update(struct imsm_update_reshape_migration *u, |
8207 | struct intel_super *super, | |
8208 | void ***space_list) | |
8209 | { | |
8210 | struct intel_dev *id; | |
8211 | void **tofree = NULL; | |
8212 | int ret_val = 0; | |
8213 | ||
1ade5cc1 | 8214 | dprintf("(enter)\n"); |
089f9d79 | 8215 | if (u->subdev < 0 || u->subdev > 1) { |
a29911da PC |
8216 | dprintf("imsm: Error: Wrong subdev: %i\n", u->subdev); |
8217 | return ret_val; | |
8218 | } | |
089f9d79 | 8219 | if (space_list == NULL || *space_list == NULL) { |
a29911da PC |
8220 | dprintf("imsm: Error: Memory is not allocated\n"); |
8221 | return ret_val; | |
8222 | } | |
8223 | ||
8224 | for (id = super->devlist ; id; id = id->next) { | |
8225 | if (id->index == (unsigned)u->subdev) { | |
8226 | struct imsm_dev *dev = get_imsm_dev(super, u->subdev); | |
8227 | struct imsm_map *map; | |
8228 | struct imsm_dev *new_dev = | |
8229 | (struct imsm_dev *)*space_list; | |
238c0a71 | 8230 | struct imsm_map *migr_map = get_imsm_map(dev, MAP_1); |
a29911da PC |
8231 | int to_state; |
8232 | struct dl *new_disk; | |
8233 | ||
8234 | if (new_dev == NULL) | |
8235 | return ret_val; | |
8236 | *space_list = **space_list; | |
8237 | memcpy(new_dev, dev, sizeof_imsm_dev(dev, 0)); | |
238c0a71 | 8238 | map = get_imsm_map(new_dev, MAP_0); |
a29911da PC |
8239 | if (migr_map) { |
8240 | dprintf("imsm: Error: migration in progress"); | |
8241 | return ret_val; | |
8242 | } | |
8243 | ||
8244 | to_state = map->map_state; | |
8245 | if ((u->new_level == 5) && (map->raid_level == 0)) { | |
8246 | map->num_members++; | |
8247 | /* this should not happen */ | |
8248 | if (u->new_disks[0] < 0) { | |
8249 | map->failed_disk_num = | |
8250 | map->num_members - 1; | |
8251 | to_state = IMSM_T_STATE_DEGRADED; | |
8252 | } else | |
8253 | to_state = IMSM_T_STATE_NORMAL; | |
8254 | } | |
8e59f3d8 | 8255 | migrate(new_dev, super, to_state, MIGR_GEN_MIGR); |
a29911da PC |
8256 | if (u->new_level > -1) |
8257 | map->raid_level = u->new_level; | |
238c0a71 | 8258 | migr_map = get_imsm_map(new_dev, MAP_1); |
a29911da PC |
8259 | if ((u->new_level == 5) && |
8260 | (migr_map->raid_level == 0)) { | |
8261 | int ord = map->num_members - 1; | |
8262 | migr_map->num_members--; | |
8263 | if (u->new_disks[0] < 0) | |
8264 | ord |= IMSM_ORD_REBUILD; | |
8265 | set_imsm_ord_tbl_ent(map, | |
8266 | map->num_members - 1, | |
8267 | ord); | |
8268 | } | |
8269 | id->dev = new_dev; | |
8270 | tofree = (void **)dev; | |
8271 | ||
4bba0439 PC |
8272 | /* update chunk size |
8273 | */ | |
8274 | if (u->new_chunksize > 0) | |
8275 | map->blocks_per_strip = | |
8276 | __cpu_to_le16(u->new_chunksize * 2); | |
8277 | ||
a29911da PC |
8278 | /* add disk |
8279 | */ | |
089f9d79 JS |
8280 | if (u->new_level != 5 || migr_map->raid_level != 0 || |
8281 | migr_map->raid_level == map->raid_level) | |
a29911da PC |
8282 | goto skip_disk_add; |
8283 | ||
8284 | if (u->new_disks[0] >= 0) { | |
8285 | /* use passes spare | |
8286 | */ | |
8287 | new_disk = get_disk_super(super, | |
8288 | major(u->new_disks[0]), | |
8289 | minor(u->new_disks[0])); | |
7a862a02 | 8290 | dprintf("imsm: new disk for reshape is: %i:%i (%p, index = %i)\n", |
a29911da PC |
8291 | major(u->new_disks[0]), |
8292 | minor(u->new_disks[0]), | |
8293 | new_disk, new_disk->index); | |
8294 | if (new_disk == NULL) | |
8295 | goto error_disk_add; | |
8296 | ||
8297 | new_disk->index = map->num_members - 1; | |
8298 | /* slot to fill in autolayout | |
8299 | */ | |
8300 | new_disk->raiddisk = new_disk->index; | |
8301 | new_disk->disk.status |= CONFIGURED_DISK; | |
8302 | new_disk->disk.status &= ~SPARE_DISK; | |
8303 | } else | |
8304 | goto error_disk_add; | |
8305 | ||
8306 | skip_disk_add: | |
8307 | *tofree = *space_list; | |
8308 | /* calculate new size | |
8309 | */ | |
f3871fdc | 8310 | imsm_set_array_size(new_dev, -1); |
a29911da PC |
8311 | |
8312 | ret_val = 1; | |
8313 | } | |
8314 | } | |
8315 | ||
8316 | if (tofree) | |
8317 | *space_list = tofree; | |
8318 | return ret_val; | |
8319 | ||
8320 | error_disk_add: | |
8321 | dprintf("Error: imsm: Cannot find disk.\n"); | |
8322 | return ret_val; | |
8323 | } | |
8324 | ||
f3871fdc AK |
8325 | static int apply_size_change_update(struct imsm_update_size_change *u, |
8326 | struct intel_super *super) | |
8327 | { | |
8328 | struct intel_dev *id; | |
8329 | int ret_val = 0; | |
8330 | ||
1ade5cc1 | 8331 | dprintf("(enter)\n"); |
089f9d79 | 8332 | if (u->subdev < 0 || u->subdev > 1) { |
f3871fdc AK |
8333 | dprintf("imsm: Error: Wrong subdev: %i\n", u->subdev); |
8334 | return ret_val; | |
8335 | } | |
8336 | ||
8337 | for (id = super->devlist ; id; id = id->next) { | |
8338 | if (id->index == (unsigned)u->subdev) { | |
8339 | struct imsm_dev *dev = get_imsm_dev(super, u->subdev); | |
8340 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
8341 | int used_disks = imsm_num_data_members(dev, MAP_0); | |
8342 | unsigned long long blocks_per_member; | |
8343 | ||
8344 | /* calculate new size | |
8345 | */ | |
8346 | blocks_per_member = u->new_size / used_disks; | |
1ade5cc1 | 8347 | dprintf("(size: %llu, blocks per member: %llu)\n", |
f3871fdc AK |
8348 | u->new_size, blocks_per_member); |
8349 | set_blocks_per_member(map, blocks_per_member); | |
8350 | imsm_set_array_size(dev, u->new_size); | |
8351 | ||
8352 | ret_val = 1; | |
8353 | break; | |
8354 | } | |
8355 | } | |
8356 | ||
8357 | return ret_val; | |
8358 | } | |
8359 | ||
061d7da3 | 8360 | static int apply_update_activate_spare(struct imsm_update_activate_spare *u, |
ca9de185 | 8361 | struct intel_super *super, |
061d7da3 LO |
8362 | struct active_array *active_array) |
8363 | { | |
8364 | struct imsm_super *mpb = super->anchor; | |
8365 | struct imsm_dev *dev = get_imsm_dev(super, u->array); | |
238c0a71 | 8366 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
061d7da3 LO |
8367 | struct imsm_map *migr_map; |
8368 | struct active_array *a; | |
8369 | struct imsm_disk *disk; | |
8370 | __u8 to_state; | |
8371 | struct dl *dl; | |
8372 | unsigned int found; | |
8373 | int failed; | |
5961eeec | 8374 | int victim; |
061d7da3 | 8375 | int i; |
5961eeec | 8376 | int second_map_created = 0; |
061d7da3 | 8377 | |
5961eeec | 8378 | for (; u; u = u->next) { |
238c0a71 | 8379 | victim = get_imsm_disk_idx(dev, u->slot, MAP_X); |
061d7da3 | 8380 | |
5961eeec | 8381 | if (victim < 0) |
8382 | return 0; | |
061d7da3 | 8383 | |
5961eeec | 8384 | for (dl = super->disks; dl; dl = dl->next) |
8385 | if (dl == u->dl) | |
8386 | break; | |
061d7da3 | 8387 | |
5961eeec | 8388 | if (!dl) { |
7a862a02 | 8389 | pr_err("error: imsm_activate_spare passed an unknown disk (index: %d)\n", |
5961eeec | 8390 | u->dl->index); |
8391 | return 0; | |
8392 | } | |
061d7da3 | 8393 | |
5961eeec | 8394 | /* count failures (excluding rebuilds and the victim) |
8395 | * to determine map[0] state | |
8396 | */ | |
8397 | failed = 0; | |
8398 | for (i = 0; i < map->num_members; i++) { | |
8399 | if (i == u->slot) | |
8400 | continue; | |
8401 | disk = get_imsm_disk(super, | |
238c0a71 | 8402 | get_imsm_disk_idx(dev, i, MAP_X)); |
5961eeec | 8403 | if (!disk || is_failed(disk)) |
8404 | failed++; | |
8405 | } | |
061d7da3 | 8406 | |
5961eeec | 8407 | /* adding a pristine spare, assign a new index */ |
8408 | if (dl->index < 0) { | |
8409 | dl->index = super->anchor->num_disks; | |
8410 | super->anchor->num_disks++; | |
8411 | } | |
8412 | disk = &dl->disk; | |
8413 | disk->status |= CONFIGURED_DISK; | |
8414 | disk->status &= ~SPARE_DISK; | |
8415 | ||
8416 | /* mark rebuild */ | |
238c0a71 | 8417 | to_state = imsm_check_degraded(super, dev, failed, MAP_0); |
5961eeec | 8418 | if (!second_map_created) { |
8419 | second_map_created = 1; | |
8420 | map->map_state = IMSM_T_STATE_DEGRADED; | |
8421 | migrate(dev, super, to_state, MIGR_REBUILD); | |
8422 | } else | |
8423 | map->map_state = to_state; | |
238c0a71 | 8424 | migr_map = get_imsm_map(dev, MAP_1); |
5961eeec | 8425 | set_imsm_ord_tbl_ent(map, u->slot, dl->index); |
8426 | set_imsm_ord_tbl_ent(migr_map, u->slot, | |
8427 | dl->index | IMSM_ORD_REBUILD); | |
8428 | ||
8429 | /* update the family_num to mark a new container | |
8430 | * generation, being careful to record the existing | |
8431 | * family_num in orig_family_num to clean up after | |
8432 | * earlier mdadm versions that neglected to set it. | |
8433 | */ | |
8434 | if (mpb->orig_family_num == 0) | |
8435 | mpb->orig_family_num = mpb->family_num; | |
8436 | mpb->family_num += super->random; | |
8437 | ||
8438 | /* count arrays using the victim in the metadata */ | |
8439 | found = 0; | |
8440 | for (a = active_array; a ; a = a->next) { | |
8441 | dev = get_imsm_dev(super, a->info.container_member); | |
238c0a71 | 8442 | map = get_imsm_map(dev, MAP_0); |
061d7da3 | 8443 | |
5961eeec | 8444 | if (get_imsm_disk_slot(map, victim) >= 0) |
8445 | found++; | |
8446 | } | |
061d7da3 | 8447 | |
5961eeec | 8448 | /* delete the victim if it is no longer being |
8449 | * utilized anywhere | |
061d7da3 | 8450 | */ |
5961eeec | 8451 | if (!found) { |
8452 | struct dl **dlp; | |
061d7da3 | 8453 | |
5961eeec | 8454 | /* We know that 'manager' isn't touching anything, |
8455 | * so it is safe to delete | |
8456 | */ | |
8457 | for (dlp = &super->disks; *dlp; dlp = &(*dlp)->next) | |
061d7da3 LO |
8458 | if ((*dlp)->index == victim) |
8459 | break; | |
5961eeec | 8460 | |
8461 | /* victim may be on the missing list */ | |
8462 | if (!*dlp) | |
8463 | for (dlp = &super->missing; *dlp; | |
8464 | dlp = &(*dlp)->next) | |
8465 | if ((*dlp)->index == victim) | |
8466 | break; | |
8467 | imsm_delete(super, dlp, victim); | |
8468 | } | |
061d7da3 LO |
8469 | } |
8470 | ||
8471 | return 1; | |
8472 | } | |
a29911da | 8473 | |
2e5dc010 N |
8474 | static int apply_reshape_container_disks_update(struct imsm_update_reshape *u, |
8475 | struct intel_super *super, | |
8476 | void ***space_list) | |
8477 | { | |
8478 | struct dl *new_disk; | |
8479 | struct intel_dev *id; | |
8480 | int i; | |
8481 | int delta_disks = u->new_raid_disks - u->old_raid_disks; | |
ee4beede | 8482 | int disk_count = u->old_raid_disks; |
2e5dc010 N |
8483 | void **tofree = NULL; |
8484 | int devices_to_reshape = 1; | |
8485 | struct imsm_super *mpb = super->anchor; | |
8486 | int ret_val = 0; | |
d098291a | 8487 | unsigned int dev_id; |
2e5dc010 | 8488 | |
1ade5cc1 | 8489 | dprintf("(enter)\n"); |
2e5dc010 N |
8490 | |
8491 | /* enable spares to use in array */ | |
8492 | for (i = 0; i < delta_disks; i++) { | |
8493 | new_disk = get_disk_super(super, | |
8494 | major(u->new_disks[i]), | |
8495 | minor(u->new_disks[i])); | |
7a862a02 | 8496 | dprintf("imsm: new disk for reshape is: %i:%i (%p, index = %i)\n", |
2e5dc010 N |
8497 | major(u->new_disks[i]), minor(u->new_disks[i]), |
8498 | new_disk, new_disk->index); | |
089f9d79 JS |
8499 | if (new_disk == NULL || |
8500 | (new_disk->index >= 0 && | |
8501 | new_disk->index < u->old_raid_disks)) | |
2e5dc010 | 8502 | goto update_reshape_exit; |
ee4beede | 8503 | new_disk->index = disk_count++; |
2e5dc010 N |
8504 | /* slot to fill in autolayout |
8505 | */ | |
8506 | new_disk->raiddisk = new_disk->index; | |
8507 | new_disk->disk.status |= | |
8508 | CONFIGURED_DISK; | |
8509 | new_disk->disk.status &= ~SPARE_DISK; | |
8510 | } | |
8511 | ||
ed7333bd AK |
8512 | dprintf("imsm: volume set mpb->num_raid_devs = %i\n", |
8513 | mpb->num_raid_devs); | |
2e5dc010 N |
8514 | /* manage changes in volume |
8515 | */ | |
d098291a | 8516 | for (dev_id = 0; dev_id < mpb->num_raid_devs; dev_id++) { |
2e5dc010 N |
8517 | void **sp = *space_list; |
8518 | struct imsm_dev *newdev; | |
8519 | struct imsm_map *newmap, *oldmap; | |
8520 | ||
d098291a AK |
8521 | for (id = super->devlist ; id; id = id->next) { |
8522 | if (id->index == dev_id) | |
8523 | break; | |
8524 | } | |
8525 | if (id == NULL) | |
8526 | break; | |
2e5dc010 N |
8527 | if (!sp) |
8528 | continue; | |
8529 | *space_list = *sp; | |
8530 | newdev = (void*)sp; | |
8531 | /* Copy the dev, but not (all of) the map */ | |
8532 | memcpy(newdev, id->dev, sizeof(*newdev)); | |
238c0a71 AK |
8533 | oldmap = get_imsm_map(id->dev, MAP_0); |
8534 | newmap = get_imsm_map(newdev, MAP_0); | |
2e5dc010 N |
8535 | /* Copy the current map */ |
8536 | memcpy(newmap, oldmap, sizeof_imsm_map(oldmap)); | |
8537 | /* update one device only | |
8538 | */ | |
8539 | if (devices_to_reshape) { | |
ed7333bd AK |
8540 | dprintf("imsm: modifying subdev: %i\n", |
8541 | id->index); | |
2e5dc010 N |
8542 | devices_to_reshape--; |
8543 | newdev->vol.migr_state = 1; | |
8544 | newdev->vol.curr_migr_unit = 0; | |
ea672ee1 | 8545 | set_migr_type(newdev, MIGR_GEN_MIGR); |
2e5dc010 N |
8546 | newmap->num_members = u->new_raid_disks; |
8547 | for (i = 0; i < delta_disks; i++) { | |
8548 | set_imsm_ord_tbl_ent(newmap, | |
8549 | u->old_raid_disks + i, | |
8550 | u->old_raid_disks + i); | |
8551 | } | |
8552 | /* New map is correct, now need to save old map | |
8553 | */ | |
238c0a71 | 8554 | newmap = get_imsm_map(newdev, MAP_1); |
2e5dc010 N |
8555 | memcpy(newmap, oldmap, sizeof_imsm_map(oldmap)); |
8556 | ||
f3871fdc | 8557 | imsm_set_array_size(newdev, -1); |
2e5dc010 N |
8558 | } |
8559 | ||
8560 | sp = (void **)id->dev; | |
8561 | id->dev = newdev; | |
8562 | *sp = tofree; | |
8563 | tofree = sp; | |
8e59f3d8 AK |
8564 | |
8565 | /* Clear migration record */ | |
8566 | memset(super->migr_rec, 0, sizeof(struct migr_record)); | |
2e5dc010 | 8567 | } |
819bc634 AK |
8568 | if (tofree) |
8569 | *space_list = tofree; | |
2e5dc010 N |
8570 | ret_val = 1; |
8571 | ||
8572 | update_reshape_exit: | |
8573 | ||
8574 | return ret_val; | |
8575 | } | |
8576 | ||
bb025c2f | 8577 | static int apply_takeover_update(struct imsm_update_takeover *u, |
8ca6df95 KW |
8578 | struct intel_super *super, |
8579 | void ***space_list) | |
bb025c2f KW |
8580 | { |
8581 | struct imsm_dev *dev = NULL; | |
8ca6df95 KW |
8582 | struct intel_dev *dv; |
8583 | struct imsm_dev *dev_new; | |
bb025c2f KW |
8584 | struct imsm_map *map; |
8585 | struct dl *dm, *du; | |
8ca6df95 | 8586 | int i; |
bb025c2f KW |
8587 | |
8588 | for (dv = super->devlist; dv; dv = dv->next) | |
8589 | if (dv->index == (unsigned int)u->subarray) { | |
8590 | dev = dv->dev; | |
8591 | break; | |
8592 | } | |
8593 | ||
8594 | if (dev == NULL) | |
8595 | return 0; | |
8596 | ||
238c0a71 | 8597 | map = get_imsm_map(dev, MAP_0); |
bb025c2f KW |
8598 | |
8599 | if (u->direction == R10_TO_R0) { | |
43d5ec18 | 8600 | /* Number of failed disks must be half of initial disk number */ |
3b451610 AK |
8601 | if (imsm_count_failed(super, dev, MAP_0) != |
8602 | (map->num_members / 2)) | |
43d5ec18 KW |
8603 | return 0; |
8604 | ||
bb025c2f KW |
8605 | /* iterate through devices to mark removed disks as spare */ |
8606 | for (dm = super->disks; dm; dm = dm->next) { | |
8607 | if (dm->disk.status & FAILED_DISK) { | |
8608 | int idx = dm->index; | |
8609 | /* update indexes on the disk list */ | |
8610 | /* FIXME this loop-with-the-loop looks wrong, I'm not convinced | |
8611 | the index values will end up being correct.... NB */ | |
8612 | for (du = super->disks; du; du = du->next) | |
8613 | if (du->index > idx) | |
8614 | du->index--; | |
8615 | /* mark as spare disk */ | |
a8619d23 | 8616 | mark_spare(dm); |
bb025c2f KW |
8617 | } |
8618 | } | |
bb025c2f KW |
8619 | /* update map */ |
8620 | map->num_members = map->num_members / 2; | |
8621 | map->map_state = IMSM_T_STATE_NORMAL; | |
8622 | map->num_domains = 1; | |
8623 | map->raid_level = 0; | |
8624 | map->failed_disk_num = -1; | |
8625 | } | |
8626 | ||
8ca6df95 KW |
8627 | if (u->direction == R0_TO_R10) { |
8628 | void **space; | |
8629 | /* update slots in current disk list */ | |
8630 | for (dm = super->disks; dm; dm = dm->next) { | |
8631 | if (dm->index >= 0) | |
8632 | dm->index *= 2; | |
8633 | } | |
8634 | /* create new *missing* disks */ | |
8635 | for (i = 0; i < map->num_members; i++) { | |
8636 | space = *space_list; | |
8637 | if (!space) | |
8638 | continue; | |
8639 | *space_list = *space; | |
8640 | du = (void *)space; | |
8641 | memcpy(du, super->disks, sizeof(*du)); | |
8ca6df95 KW |
8642 | du->fd = -1; |
8643 | du->minor = 0; | |
8644 | du->major = 0; | |
8645 | du->index = (i * 2) + 1; | |
8646 | sprintf((char *)du->disk.serial, | |
8647 | " MISSING_%d", du->index); | |
8648 | sprintf((char *)du->serial, | |
8649 | "MISSING_%d", du->index); | |
8650 | du->next = super->missing; | |
8651 | super->missing = du; | |
8652 | } | |
8653 | /* create new dev and map */ | |
8654 | space = *space_list; | |
8655 | if (!space) | |
8656 | return 0; | |
8657 | *space_list = *space; | |
8658 | dev_new = (void *)space; | |
8659 | memcpy(dev_new, dev, sizeof(*dev)); | |
8660 | /* update new map */ | |
238c0a71 | 8661 | map = get_imsm_map(dev_new, MAP_0); |
8ca6df95 | 8662 | map->num_members = map->num_members * 2; |
1a2487c2 | 8663 | map->map_state = IMSM_T_STATE_DEGRADED; |
8ca6df95 KW |
8664 | map->num_domains = 2; |
8665 | map->raid_level = 1; | |
8666 | /* replace dev<->dev_new */ | |
8667 | dv->dev = dev_new; | |
8668 | } | |
bb025c2f KW |
8669 | /* update disk order table */ |
8670 | for (du = super->disks; du; du = du->next) | |
8671 | if (du->index >= 0) | |
8672 | set_imsm_ord_tbl_ent(map, du->index, du->index); | |
8ca6df95 | 8673 | for (du = super->missing; du; du = du->next) |
1a2487c2 KW |
8674 | if (du->index >= 0) { |
8675 | set_imsm_ord_tbl_ent(map, du->index, du->index); | |
e4c72d1d | 8676 | mark_missing(dv->dev, &du->disk, du->index); |
1a2487c2 | 8677 | } |
bb025c2f KW |
8678 | |
8679 | return 1; | |
8680 | } | |
8681 | ||
e8319a19 DW |
8682 | static void imsm_process_update(struct supertype *st, |
8683 | struct metadata_update *update) | |
8684 | { | |
8685 | /** | |
8686 | * crack open the metadata_update envelope to find the update record | |
8687 | * update can be one of: | |
d195167d AK |
8688 | * update_reshape_container_disks - all the arrays in the container |
8689 | * are being reshaped to have more devices. We need to mark | |
8690 | * the arrays for general migration and convert selected spares | |
8691 | * into active devices. | |
8692 | * update_activate_spare - a spare device has replaced a failed | |
1011e834 N |
8693 | * device in an array, update the disk_ord_tbl. If this disk is |
8694 | * present in all member arrays then also clear the SPARE_DISK | |
8695 | * flag | |
d195167d AK |
8696 | * update_create_array |
8697 | * update_kill_array | |
8698 | * update_rename_array | |
8699 | * update_add_remove_disk | |
e8319a19 DW |
8700 | */ |
8701 | struct intel_super *super = st->sb; | |
4d7b1503 | 8702 | struct imsm_super *mpb; |
e8319a19 DW |
8703 | enum imsm_update_type type = *(enum imsm_update_type *) update->buf; |
8704 | ||
4d7b1503 DW |
8705 | /* update requires a larger buf but the allocation failed */ |
8706 | if (super->next_len && !super->next_buf) { | |
8707 | super->next_len = 0; | |
8708 | return; | |
8709 | } | |
8710 | ||
8711 | if (super->next_buf) { | |
8712 | memcpy(super->next_buf, super->buf, super->len); | |
8713 | free(super->buf); | |
8714 | super->len = super->next_len; | |
8715 | super->buf = super->next_buf; | |
8716 | ||
8717 | super->next_len = 0; | |
8718 | super->next_buf = NULL; | |
8719 | } | |
8720 | ||
8721 | mpb = super->anchor; | |
8722 | ||
e8319a19 | 8723 | switch (type) { |
0ec5d470 AK |
8724 | case update_general_migration_checkpoint: { |
8725 | struct intel_dev *id; | |
8726 | struct imsm_update_general_migration_checkpoint *u = | |
8727 | (void *)update->buf; | |
8728 | ||
1ade5cc1 | 8729 | dprintf("called for update_general_migration_checkpoint\n"); |
0ec5d470 AK |
8730 | |
8731 | /* find device under general migration */ | |
8732 | for (id = super->devlist ; id; id = id->next) { | |
8733 | if (is_gen_migration(id->dev)) { | |
8734 | id->dev->vol.curr_migr_unit = | |
8735 | __cpu_to_le32(u->curr_migr_unit); | |
8736 | super->updates_pending++; | |
8737 | } | |
8738 | } | |
8739 | break; | |
8740 | } | |
bb025c2f KW |
8741 | case update_takeover: { |
8742 | struct imsm_update_takeover *u = (void *)update->buf; | |
1a2487c2 KW |
8743 | if (apply_takeover_update(u, super, &update->space_list)) { |
8744 | imsm_update_version_info(super); | |
bb025c2f | 8745 | super->updates_pending++; |
1a2487c2 | 8746 | } |
bb025c2f KW |
8747 | break; |
8748 | } | |
8749 | ||
78b10e66 | 8750 | case update_reshape_container_disks: { |
d195167d | 8751 | struct imsm_update_reshape *u = (void *)update->buf; |
2e5dc010 N |
8752 | if (apply_reshape_container_disks_update( |
8753 | u, super, &update->space_list)) | |
8754 | super->updates_pending++; | |
78b10e66 N |
8755 | break; |
8756 | } | |
48c5303a | 8757 | case update_reshape_migration: { |
a29911da PC |
8758 | struct imsm_update_reshape_migration *u = (void *)update->buf; |
8759 | if (apply_reshape_migration_update( | |
8760 | u, super, &update->space_list)) | |
8761 | super->updates_pending++; | |
48c5303a PC |
8762 | break; |
8763 | } | |
f3871fdc AK |
8764 | case update_size_change: { |
8765 | struct imsm_update_size_change *u = (void *)update->buf; | |
8766 | if (apply_size_change_update(u, super)) | |
8767 | super->updates_pending++; | |
8768 | break; | |
8769 | } | |
e8319a19 | 8770 | case update_activate_spare: { |
1011e834 | 8771 | struct imsm_update_activate_spare *u = (void *) update->buf; |
061d7da3 LO |
8772 | if (apply_update_activate_spare(u, super, st->arrays)) |
8773 | super->updates_pending++; | |
8273f55e DW |
8774 | break; |
8775 | } | |
8776 | case update_create_array: { | |
8777 | /* someone wants to create a new array, we need to be aware of | |
8778 | * a few races/collisions: | |
8779 | * 1/ 'Create' called by two separate instances of mdadm | |
8780 | * 2/ 'Create' versus 'activate_spare': mdadm has chosen | |
8781 | * devices that have since been assimilated via | |
8782 | * activate_spare. | |
8783 | * In the event this update can not be carried out mdadm will | |
8784 | * (FIX ME) notice that its update did not take hold. | |
8785 | */ | |
8786 | struct imsm_update_create_array *u = (void *) update->buf; | |
ba2de7ba | 8787 | struct intel_dev *dv; |
8273f55e DW |
8788 | struct imsm_dev *dev; |
8789 | struct imsm_map *map, *new_map; | |
8790 | unsigned long long start, end; | |
8791 | unsigned long long new_start, new_end; | |
8792 | int i; | |
54c2c1ea DW |
8793 | struct disk_info *inf; |
8794 | struct dl *dl; | |
8273f55e DW |
8795 | |
8796 | /* handle racing creates: first come first serve */ | |
8797 | if (u->dev_idx < mpb->num_raid_devs) { | |
1ade5cc1 | 8798 | dprintf("subarray %d already defined\n", u->dev_idx); |
ba2de7ba | 8799 | goto create_error; |
8273f55e DW |
8800 | } |
8801 | ||
8802 | /* check update is next in sequence */ | |
8803 | if (u->dev_idx != mpb->num_raid_devs) { | |
1ade5cc1 N |
8804 | dprintf("can not create array %d expected index %d\n", |
8805 | u->dev_idx, mpb->num_raid_devs); | |
ba2de7ba | 8806 | goto create_error; |
8273f55e DW |
8807 | } |
8808 | ||
238c0a71 | 8809 | new_map = get_imsm_map(&u->dev, MAP_0); |
5551b113 CA |
8810 | new_start = pba_of_lba0(new_map); |
8811 | new_end = new_start + blocks_per_member(new_map); | |
54c2c1ea | 8812 | inf = get_disk_info(u); |
8273f55e DW |
8813 | |
8814 | /* handle activate_spare versus create race: | |
8815 | * check to make sure that overlapping arrays do not include | |
8816 | * overalpping disks | |
8817 | */ | |
8818 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
949c47a0 | 8819 | dev = get_imsm_dev(super, i); |
238c0a71 | 8820 | map = get_imsm_map(dev, MAP_0); |
5551b113 CA |
8821 | start = pba_of_lba0(map); |
8822 | end = start + blocks_per_member(map); | |
8273f55e DW |
8823 | if ((new_start >= start && new_start <= end) || |
8824 | (start >= new_start && start <= new_end)) | |
54c2c1ea DW |
8825 | /* overlap */; |
8826 | else | |
8827 | continue; | |
8828 | ||
8829 | if (disks_overlap(super, i, u)) { | |
1ade5cc1 | 8830 | dprintf("arrays overlap\n"); |
ba2de7ba | 8831 | goto create_error; |
8273f55e DW |
8832 | } |
8833 | } | |
8273f55e | 8834 | |
949c47a0 DW |
8835 | /* check that prepare update was successful */ |
8836 | if (!update->space) { | |
1ade5cc1 | 8837 | dprintf("prepare update failed\n"); |
ba2de7ba | 8838 | goto create_error; |
949c47a0 DW |
8839 | } |
8840 | ||
54c2c1ea DW |
8841 | /* check that all disks are still active before committing |
8842 | * changes. FIXME: could we instead handle this by creating a | |
8843 | * degraded array? That's probably not what the user expects, | |
8844 | * so better to drop this update on the floor. | |
8845 | */ | |
8846 | for (i = 0; i < new_map->num_members; i++) { | |
8847 | dl = serial_to_dl(inf[i].serial, super); | |
8848 | if (!dl) { | |
1ade5cc1 | 8849 | dprintf("disk disappeared\n"); |
ba2de7ba | 8850 | goto create_error; |
54c2c1ea | 8851 | } |
949c47a0 DW |
8852 | } |
8853 | ||
8273f55e | 8854 | super->updates_pending++; |
54c2c1ea DW |
8855 | |
8856 | /* convert spares to members and fixup ord_tbl */ | |
8857 | for (i = 0; i < new_map->num_members; i++) { | |
8858 | dl = serial_to_dl(inf[i].serial, super); | |
8859 | if (dl->index == -1) { | |
8860 | dl->index = mpb->num_disks; | |
8861 | mpb->num_disks++; | |
8862 | dl->disk.status |= CONFIGURED_DISK; | |
8863 | dl->disk.status &= ~SPARE_DISK; | |
8864 | } | |
8865 | set_imsm_ord_tbl_ent(new_map, i, dl->index); | |
8866 | } | |
8867 | ||
ba2de7ba DW |
8868 | dv = update->space; |
8869 | dev = dv->dev; | |
949c47a0 DW |
8870 | update->space = NULL; |
8871 | imsm_copy_dev(dev, &u->dev); | |
ba2de7ba DW |
8872 | dv->index = u->dev_idx; |
8873 | dv->next = super->devlist; | |
8874 | super->devlist = dv; | |
8273f55e | 8875 | mpb->num_raid_devs++; |
8273f55e | 8876 | |
4d1313e9 | 8877 | imsm_update_version_info(super); |
8273f55e | 8878 | break; |
ba2de7ba DW |
8879 | create_error: |
8880 | /* mdmon knows how to release update->space, but not | |
8881 | * ((struct intel_dev *) update->space)->dev | |
8882 | */ | |
8883 | if (update->space) { | |
8884 | dv = update->space; | |
8885 | free(dv->dev); | |
8886 | } | |
8273f55e | 8887 | break; |
e8319a19 | 8888 | } |
33414a01 DW |
8889 | case update_kill_array: { |
8890 | struct imsm_update_kill_array *u = (void *) update->buf; | |
8891 | int victim = u->dev_idx; | |
8892 | struct active_array *a; | |
8893 | struct intel_dev **dp; | |
8894 | struct imsm_dev *dev; | |
8895 | ||
8896 | /* sanity check that we are not affecting the uuid of | |
8897 | * active arrays, or deleting an active array | |
8898 | * | |
8899 | * FIXME when immutable ids are available, but note that | |
8900 | * we'll also need to fixup the invalidated/active | |
8901 | * subarray indexes in mdstat | |
8902 | */ | |
8903 | for (a = st->arrays; a; a = a->next) | |
8904 | if (a->info.container_member >= victim) | |
8905 | break; | |
8906 | /* by definition if mdmon is running at least one array | |
8907 | * is active in the container, so checking | |
8908 | * mpb->num_raid_devs is just extra paranoia | |
8909 | */ | |
8910 | dev = get_imsm_dev(super, victim); | |
8911 | if (a || !dev || mpb->num_raid_devs == 1) { | |
8912 | dprintf("failed to delete subarray-%d\n", victim); | |
8913 | break; | |
8914 | } | |
8915 | ||
8916 | for (dp = &super->devlist; *dp;) | |
f21e18ca | 8917 | if ((*dp)->index == (unsigned)super->current_vol) { |
33414a01 DW |
8918 | *dp = (*dp)->next; |
8919 | } else { | |
f21e18ca | 8920 | if ((*dp)->index > (unsigned)victim) |
33414a01 DW |
8921 | (*dp)->index--; |
8922 | dp = &(*dp)->next; | |
8923 | } | |
8924 | mpb->num_raid_devs--; | |
8925 | super->updates_pending++; | |
8926 | break; | |
8927 | } | |
aa534678 DW |
8928 | case update_rename_array: { |
8929 | struct imsm_update_rename_array *u = (void *) update->buf; | |
8930 | char name[MAX_RAID_SERIAL_LEN+1]; | |
8931 | int target = u->dev_idx; | |
8932 | struct active_array *a; | |
8933 | struct imsm_dev *dev; | |
8934 | ||
8935 | /* sanity check that we are not affecting the uuid of | |
8936 | * an active array | |
8937 | */ | |
8938 | snprintf(name, MAX_RAID_SERIAL_LEN, "%s", (char *) u->name); | |
8939 | name[MAX_RAID_SERIAL_LEN] = '\0'; | |
8940 | for (a = st->arrays; a; a = a->next) | |
8941 | if (a->info.container_member == target) | |
8942 | break; | |
8943 | dev = get_imsm_dev(super, u->dev_idx); | |
8944 | if (a || !dev || !check_name(super, name, 1)) { | |
8945 | dprintf("failed to rename subarray-%d\n", target); | |
8946 | break; | |
8947 | } | |
8948 | ||
cdbe98cd | 8949 | snprintf((char *) dev->volume, MAX_RAID_SERIAL_LEN, "%s", name); |
aa534678 DW |
8950 | super->updates_pending++; |
8951 | break; | |
8952 | } | |
1a64be56 | 8953 | case update_add_remove_disk: { |
43dad3d6 | 8954 | /* we may be able to repair some arrays if disks are |
095b8088 | 8955 | * being added, check the status of add_remove_disk |
1a64be56 LM |
8956 | * if discs has been added. |
8957 | */ | |
8958 | if (add_remove_disk_update(super)) { | |
43dad3d6 | 8959 | struct active_array *a; |
072b727f DW |
8960 | |
8961 | super->updates_pending++; | |
1a64be56 | 8962 | for (a = st->arrays; a; a = a->next) |
43dad3d6 DW |
8963 | a->check_degraded = 1; |
8964 | } | |
43dad3d6 | 8965 | break; |
e8319a19 | 8966 | } |
1a64be56 | 8967 | default: |
7a862a02 | 8968 | pr_err("error: unsuported process update type:(type: %d)\n", type); |
1a64be56 | 8969 | } |
e8319a19 | 8970 | } |
88758e9d | 8971 | |
bc0b9d34 PC |
8972 | static struct mdinfo *get_spares_for_grow(struct supertype *st); |
8973 | ||
5fe6f031 N |
8974 | static int imsm_prepare_update(struct supertype *st, |
8975 | struct metadata_update *update) | |
8273f55e | 8976 | { |
949c47a0 | 8977 | /** |
4d7b1503 DW |
8978 | * Allocate space to hold new disk entries, raid-device entries or a new |
8979 | * mpb if necessary. The manager synchronously waits for updates to | |
8980 | * complete in the monitor, so new mpb buffers allocated here can be | |
8981 | * integrated by the monitor thread without worrying about live pointers | |
8982 | * in the manager thread. | |
8273f55e | 8983 | */ |
095b8088 | 8984 | enum imsm_update_type type; |
4d7b1503 | 8985 | struct intel_super *super = st->sb; |
f36a9ecd | 8986 | unsigned int sector_size = super->sector_size; |
4d7b1503 DW |
8987 | struct imsm_super *mpb = super->anchor; |
8988 | size_t buf_len; | |
8989 | size_t len = 0; | |
949c47a0 | 8990 | |
095b8088 N |
8991 | if (update->len < (int)sizeof(type)) |
8992 | return 0; | |
8993 | ||
8994 | type = *(enum imsm_update_type *) update->buf; | |
8995 | ||
949c47a0 | 8996 | switch (type) { |
0ec5d470 | 8997 | case update_general_migration_checkpoint: |
095b8088 N |
8998 | if (update->len < (int)sizeof(struct imsm_update_general_migration_checkpoint)) |
8999 | return 0; | |
1ade5cc1 | 9000 | dprintf("called for update_general_migration_checkpoint\n"); |
0ec5d470 | 9001 | break; |
abedf5fc KW |
9002 | case update_takeover: { |
9003 | struct imsm_update_takeover *u = (void *)update->buf; | |
095b8088 N |
9004 | if (update->len < (int)sizeof(*u)) |
9005 | return 0; | |
abedf5fc KW |
9006 | if (u->direction == R0_TO_R10) { |
9007 | void **tail = (void **)&update->space_list; | |
9008 | struct imsm_dev *dev = get_imsm_dev(super, u->subarray); | |
238c0a71 | 9009 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
abedf5fc KW |
9010 | int num_members = map->num_members; |
9011 | void *space; | |
9012 | int size, i; | |
abedf5fc KW |
9013 | /* allocate memory for added disks */ |
9014 | for (i = 0; i < num_members; i++) { | |
9015 | size = sizeof(struct dl); | |
503975b9 | 9016 | space = xmalloc(size); |
abedf5fc KW |
9017 | *tail = space; |
9018 | tail = space; | |
9019 | *tail = NULL; | |
9020 | } | |
9021 | /* allocate memory for new device */ | |
9022 | size = sizeof_imsm_dev(super->devlist->dev, 0) + | |
9023 | (num_members * sizeof(__u32)); | |
503975b9 N |
9024 | space = xmalloc(size); |
9025 | *tail = space; | |
9026 | tail = space; | |
9027 | *tail = NULL; | |
9028 | len = disks_to_mpb_size(num_members * 2); | |
abedf5fc KW |
9029 | } |
9030 | ||
9031 | break; | |
9032 | } | |
78b10e66 | 9033 | case update_reshape_container_disks: { |
d195167d AK |
9034 | /* Every raid device in the container is about to |
9035 | * gain some more devices, and we will enter a | |
9036 | * reconfiguration. | |
9037 | * So each 'imsm_map' will be bigger, and the imsm_vol | |
9038 | * will now hold 2 of them. | |
9039 | * Thus we need new 'struct imsm_dev' allocations sized | |
9040 | * as sizeof_imsm_dev but with more devices in both maps. | |
9041 | */ | |
9042 | struct imsm_update_reshape *u = (void *)update->buf; | |
9043 | struct intel_dev *dl; | |
9044 | void **space_tail = (void**)&update->space_list; | |
9045 | ||
095b8088 N |
9046 | if (update->len < (int)sizeof(*u)) |
9047 | return 0; | |
9048 | ||
1ade5cc1 | 9049 | dprintf("for update_reshape\n"); |
d195167d AK |
9050 | |
9051 | for (dl = super->devlist; dl; dl = dl->next) { | |
9052 | int size = sizeof_imsm_dev(dl->dev, 1); | |
9053 | void *s; | |
d677e0b8 AK |
9054 | if (u->new_raid_disks > u->old_raid_disks) |
9055 | size += sizeof(__u32)*2* | |
9056 | (u->new_raid_disks - u->old_raid_disks); | |
503975b9 | 9057 | s = xmalloc(size); |
d195167d AK |
9058 | *space_tail = s; |
9059 | space_tail = s; | |
9060 | *space_tail = NULL; | |
9061 | } | |
9062 | ||
9063 | len = disks_to_mpb_size(u->new_raid_disks); | |
9064 | dprintf("New anchor length is %llu\n", (unsigned long long)len); | |
78b10e66 N |
9065 | break; |
9066 | } | |
48c5303a | 9067 | case update_reshape_migration: { |
bc0b9d34 PC |
9068 | /* for migration level 0->5 we need to add disks |
9069 | * so the same as for container operation we will copy | |
9070 | * device to the bigger location. | |
9071 | * in memory prepared device and new disk area are prepared | |
9072 | * for usage in process update | |
9073 | */ | |
9074 | struct imsm_update_reshape_migration *u = (void *)update->buf; | |
9075 | struct intel_dev *id; | |
9076 | void **space_tail = (void **)&update->space_list; | |
9077 | int size; | |
9078 | void *s; | |
9079 | int current_level = -1; | |
9080 | ||
095b8088 N |
9081 | if (update->len < (int)sizeof(*u)) |
9082 | return 0; | |
9083 | ||
1ade5cc1 | 9084 | dprintf("for update_reshape\n"); |
bc0b9d34 PC |
9085 | |
9086 | /* add space for bigger array in update | |
9087 | */ | |
9088 | for (id = super->devlist; id; id = id->next) { | |
9089 | if (id->index == (unsigned)u->subdev) { | |
9090 | size = sizeof_imsm_dev(id->dev, 1); | |
9091 | if (u->new_raid_disks > u->old_raid_disks) | |
9092 | size += sizeof(__u32)*2* | |
9093 | (u->new_raid_disks - u->old_raid_disks); | |
503975b9 | 9094 | s = xmalloc(size); |
bc0b9d34 PC |
9095 | *space_tail = s; |
9096 | space_tail = s; | |
9097 | *space_tail = NULL; | |
9098 | break; | |
9099 | } | |
9100 | } | |
9101 | if (update->space_list == NULL) | |
9102 | break; | |
9103 | ||
9104 | /* add space for disk in update | |
9105 | */ | |
9106 | size = sizeof(struct dl); | |
503975b9 | 9107 | s = xmalloc(size); |
bc0b9d34 PC |
9108 | *space_tail = s; |
9109 | space_tail = s; | |
9110 | *space_tail = NULL; | |
9111 | ||
9112 | /* add spare device to update | |
9113 | */ | |
9114 | for (id = super->devlist ; id; id = id->next) | |
9115 | if (id->index == (unsigned)u->subdev) { | |
9116 | struct imsm_dev *dev; | |
9117 | struct imsm_map *map; | |
9118 | ||
9119 | dev = get_imsm_dev(super, u->subdev); | |
238c0a71 | 9120 | map = get_imsm_map(dev, MAP_0); |
bc0b9d34 PC |
9121 | current_level = map->raid_level; |
9122 | break; | |
9123 | } | |
089f9d79 | 9124 | if (u->new_level == 5 && u->new_level != current_level) { |
bc0b9d34 PC |
9125 | struct mdinfo *spares; |
9126 | ||
9127 | spares = get_spares_for_grow(st); | |
9128 | if (spares) { | |
9129 | struct dl *dl; | |
9130 | struct mdinfo *dev; | |
9131 | ||
9132 | dev = spares->devs; | |
9133 | if (dev) { | |
9134 | u->new_disks[0] = | |
9135 | makedev(dev->disk.major, | |
9136 | dev->disk.minor); | |
9137 | dl = get_disk_super(super, | |
9138 | dev->disk.major, | |
9139 | dev->disk.minor); | |
9140 | dl->index = u->old_raid_disks; | |
9141 | dev = dev->next; | |
9142 | } | |
9143 | sysfs_free(spares); | |
9144 | } | |
9145 | } | |
9146 | len = disks_to_mpb_size(u->new_raid_disks); | |
9147 | dprintf("New anchor length is %llu\n", (unsigned long long)len); | |
48c5303a PC |
9148 | break; |
9149 | } | |
f3871fdc | 9150 | case update_size_change: { |
095b8088 N |
9151 | if (update->len < (int)sizeof(struct imsm_update_size_change)) |
9152 | return 0; | |
9153 | break; | |
9154 | } | |
9155 | case update_activate_spare: { | |
9156 | if (update->len < (int)sizeof(struct imsm_update_activate_spare)) | |
9157 | return 0; | |
f3871fdc AK |
9158 | break; |
9159 | } | |
949c47a0 DW |
9160 | case update_create_array: { |
9161 | struct imsm_update_create_array *u = (void *) update->buf; | |
ba2de7ba | 9162 | struct intel_dev *dv; |
54c2c1ea | 9163 | struct imsm_dev *dev = &u->dev; |
238c0a71 | 9164 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
54c2c1ea DW |
9165 | struct dl *dl; |
9166 | struct disk_info *inf; | |
9167 | int i; | |
9168 | int activate = 0; | |
949c47a0 | 9169 | |
095b8088 N |
9170 | if (update->len < (int)sizeof(*u)) |
9171 | return 0; | |
9172 | ||
54c2c1ea DW |
9173 | inf = get_disk_info(u); |
9174 | len = sizeof_imsm_dev(dev, 1); | |
ba2de7ba | 9175 | /* allocate a new super->devlist entry */ |
503975b9 N |
9176 | dv = xmalloc(sizeof(*dv)); |
9177 | dv->dev = xmalloc(len); | |
9178 | update->space = dv; | |
949c47a0 | 9179 | |
54c2c1ea DW |
9180 | /* count how many spares will be converted to members */ |
9181 | for (i = 0; i < map->num_members; i++) { | |
9182 | dl = serial_to_dl(inf[i].serial, super); | |
9183 | if (!dl) { | |
9184 | /* hmm maybe it failed?, nothing we can do about | |
9185 | * it here | |
9186 | */ | |
9187 | continue; | |
9188 | } | |
9189 | if (count_memberships(dl, super) == 0) | |
9190 | activate++; | |
9191 | } | |
9192 | len += activate * sizeof(struct imsm_disk); | |
949c47a0 | 9193 | break; |
095b8088 N |
9194 | } |
9195 | case update_kill_array: { | |
9196 | if (update->len < (int)sizeof(struct imsm_update_kill_array)) | |
9197 | return 0; | |
949c47a0 DW |
9198 | break; |
9199 | } | |
095b8088 N |
9200 | case update_rename_array: { |
9201 | if (update->len < (int)sizeof(struct imsm_update_rename_array)) | |
9202 | return 0; | |
9203 | break; | |
9204 | } | |
9205 | case update_add_remove_disk: | |
9206 | /* no update->len needed */ | |
9207 | break; | |
9208 | default: | |
9209 | return 0; | |
949c47a0 | 9210 | } |
8273f55e | 9211 | |
4d7b1503 DW |
9212 | /* check if we need a larger metadata buffer */ |
9213 | if (super->next_buf) | |
9214 | buf_len = super->next_len; | |
9215 | else | |
9216 | buf_len = super->len; | |
9217 | ||
9218 | if (__le32_to_cpu(mpb->mpb_size) + len > buf_len) { | |
9219 | /* ok we need a larger buf than what is currently allocated | |
9220 | * if this allocation fails process_update will notice that | |
9221 | * ->next_len is set and ->next_buf is NULL | |
9222 | */ | |
f36a9ecd PB |
9223 | buf_len = ROUND_UP(__le32_to_cpu(mpb->mpb_size) + len, |
9224 | sector_size); | |
4d7b1503 DW |
9225 | if (super->next_buf) |
9226 | free(super->next_buf); | |
9227 | ||
9228 | super->next_len = buf_len; | |
f36a9ecd | 9229 | if (posix_memalign(&super->next_buf, sector_size, buf_len) == 0) |
1f45a8ad DW |
9230 | memset(super->next_buf, 0, buf_len); |
9231 | else | |
4d7b1503 DW |
9232 | super->next_buf = NULL; |
9233 | } | |
5fe6f031 | 9234 | return 1; |
8273f55e DW |
9235 | } |
9236 | ||
ae6aad82 | 9237 | /* must be called while manager is quiesced */ |
f21e18ca | 9238 | static void imsm_delete(struct intel_super *super, struct dl **dlp, unsigned index) |
ae6aad82 DW |
9239 | { |
9240 | struct imsm_super *mpb = super->anchor; | |
ae6aad82 DW |
9241 | struct dl *iter; |
9242 | struct imsm_dev *dev; | |
9243 | struct imsm_map *map; | |
24565c9a DW |
9244 | int i, j, num_members; |
9245 | __u32 ord; | |
ae6aad82 | 9246 | |
1ade5cc1 | 9247 | dprintf("deleting device[%d] from imsm_super\n", index); |
ae6aad82 DW |
9248 | |
9249 | /* shift all indexes down one */ | |
9250 | for (iter = super->disks; iter; iter = iter->next) | |
f21e18ca | 9251 | if (iter->index > (int)index) |
ae6aad82 | 9252 | iter->index--; |
47ee5a45 | 9253 | for (iter = super->missing; iter; iter = iter->next) |
f21e18ca | 9254 | if (iter->index > (int)index) |
47ee5a45 | 9255 | iter->index--; |
ae6aad82 DW |
9256 | |
9257 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
9258 | dev = get_imsm_dev(super, i); | |
238c0a71 | 9259 | map = get_imsm_map(dev, MAP_0); |
24565c9a DW |
9260 | num_members = map->num_members; |
9261 | for (j = 0; j < num_members; j++) { | |
9262 | /* update ord entries being careful not to propagate | |
9263 | * ord-flags to the first map | |
9264 | */ | |
238c0a71 | 9265 | ord = get_imsm_ord_tbl_ent(dev, j, MAP_X); |
ae6aad82 | 9266 | |
24565c9a DW |
9267 | if (ord_to_idx(ord) <= index) |
9268 | continue; | |
ae6aad82 | 9269 | |
238c0a71 | 9270 | map = get_imsm_map(dev, MAP_0); |
24565c9a | 9271 | set_imsm_ord_tbl_ent(map, j, ord_to_idx(ord - 1)); |
238c0a71 | 9272 | map = get_imsm_map(dev, MAP_1); |
24565c9a DW |
9273 | if (map) |
9274 | set_imsm_ord_tbl_ent(map, j, ord - 1); | |
ae6aad82 DW |
9275 | } |
9276 | } | |
9277 | ||
9278 | mpb->num_disks--; | |
9279 | super->updates_pending++; | |
24565c9a DW |
9280 | if (*dlp) { |
9281 | struct dl *dl = *dlp; | |
9282 | ||
9283 | *dlp = (*dlp)->next; | |
9284 | __free_imsm_disk(dl); | |
9285 | } | |
ae6aad82 | 9286 | } |
9e2d750d | 9287 | #endif /* MDASSEMBLE */ |
9a717282 AK |
9288 | |
9289 | static void close_targets(int *targets, int new_disks) | |
9290 | { | |
9291 | int i; | |
9292 | ||
9293 | if (!targets) | |
9294 | return; | |
9295 | ||
9296 | for (i = 0; i < new_disks; i++) { | |
9297 | if (targets[i] >= 0) { | |
9298 | close(targets[i]); | |
9299 | targets[i] = -1; | |
9300 | } | |
9301 | } | |
9302 | } | |
9303 | ||
9304 | static int imsm_get_allowed_degradation(int level, int raid_disks, | |
9305 | struct intel_super *super, | |
9306 | struct imsm_dev *dev) | |
9307 | { | |
9308 | switch (level) { | |
bf5cf7c7 | 9309 | case 1: |
9a717282 AK |
9310 | case 10:{ |
9311 | int ret_val = 0; | |
9312 | struct imsm_map *map; | |
9313 | int i; | |
9314 | ||
9315 | ret_val = raid_disks/2; | |
9316 | /* check map if all disks pairs not failed | |
9317 | * in both maps | |
9318 | */ | |
238c0a71 | 9319 | map = get_imsm_map(dev, MAP_0); |
9a717282 AK |
9320 | for (i = 0; i < ret_val; i++) { |
9321 | int degradation = 0; | |
9322 | if (get_imsm_disk(super, i) == NULL) | |
9323 | degradation++; | |
9324 | if (get_imsm_disk(super, i + 1) == NULL) | |
9325 | degradation++; | |
9326 | if (degradation == 2) | |
9327 | return 0; | |
9328 | } | |
238c0a71 | 9329 | map = get_imsm_map(dev, MAP_1); |
9a717282 AK |
9330 | /* if there is no second map |
9331 | * result can be returned | |
9332 | */ | |
9333 | if (map == NULL) | |
9334 | return ret_val; | |
9335 | /* check degradation in second map | |
9336 | */ | |
9337 | for (i = 0; i < ret_val; i++) { | |
9338 | int degradation = 0; | |
9339 | if (get_imsm_disk(super, i) == NULL) | |
9340 | degradation++; | |
9341 | if (get_imsm_disk(super, i + 1) == NULL) | |
9342 | degradation++; | |
9343 | if (degradation == 2) | |
9344 | return 0; | |
9345 | } | |
9346 | return ret_val; | |
9347 | } | |
9348 | case 5: | |
9349 | return 1; | |
9350 | case 6: | |
9351 | return 2; | |
9352 | default: | |
9353 | return 0; | |
9354 | } | |
9355 | } | |
9356 | ||
687629c2 AK |
9357 | /******************************************************************************* |
9358 | * Function: open_backup_targets | |
9359 | * Description: Function opens file descriptors for all devices given in | |
9360 | * info->devs | |
9361 | * Parameters: | |
9362 | * info : general array info | |
9363 | * raid_disks : number of disks | |
9364 | * raid_fds : table of device's file descriptors | |
9a717282 AK |
9365 | * super : intel super for raid10 degradation check |
9366 | * dev : intel device for raid10 degradation check | |
687629c2 AK |
9367 | * Returns: |
9368 | * 0 : success | |
9369 | * -1 : fail | |
9370 | ******************************************************************************/ | |
9a717282 AK |
9371 | int open_backup_targets(struct mdinfo *info, int raid_disks, int *raid_fds, |
9372 | struct intel_super *super, struct imsm_dev *dev) | |
687629c2 AK |
9373 | { |
9374 | struct mdinfo *sd; | |
f627f5ad | 9375 | int i; |
9a717282 | 9376 | int opened = 0; |
f627f5ad AK |
9377 | |
9378 | for (i = 0; i < raid_disks; i++) | |
9379 | raid_fds[i] = -1; | |
687629c2 AK |
9380 | |
9381 | for (sd = info->devs ; sd ; sd = sd->next) { | |
9382 | char *dn; | |
9383 | ||
9384 | if (sd->disk.state & (1<<MD_DISK_FAULTY)) { | |
9385 | dprintf("disk is faulty!!\n"); | |
9386 | continue; | |
9387 | } | |
9388 | ||
089f9d79 | 9389 | if (sd->disk.raid_disk >= raid_disks || sd->disk.raid_disk < 0) |
687629c2 AK |
9390 | continue; |
9391 | ||
9392 | dn = map_dev(sd->disk.major, | |
9393 | sd->disk.minor, 1); | |
9394 | raid_fds[sd->disk.raid_disk] = dev_open(dn, O_RDWR); | |
9395 | if (raid_fds[sd->disk.raid_disk] < 0) { | |
e12b3daa | 9396 | pr_err("cannot open component\n"); |
9a717282 | 9397 | continue; |
687629c2 | 9398 | } |
9a717282 AK |
9399 | opened++; |
9400 | } | |
9401 | /* check if maximum array degradation level is not exceeded | |
9402 | */ | |
9403 | if ((raid_disks - opened) > | |
089f9d79 JS |
9404 | imsm_get_allowed_degradation(info->new_level, raid_disks, |
9405 | super, dev)) { | |
e12b3daa | 9406 | pr_err("Not enough disks can be opened.\n"); |
9a717282 AK |
9407 | close_targets(raid_fds, raid_disks); |
9408 | return -2; | |
687629c2 AK |
9409 | } |
9410 | return 0; | |
9411 | } | |
9412 | ||
d31ad643 PB |
9413 | /******************************************************************************* |
9414 | * Function: validate_container_imsm | |
9415 | * Description: This routine validates container after assemble, | |
9416 | * eg. if devices in container are under the same controller. | |
9417 | * | |
9418 | * Parameters: | |
9419 | * info : linked list with info about devices used in array | |
9420 | * Returns: | |
9421 | * 1 : HBA mismatch | |
9422 | * 0 : Success | |
9423 | ******************************************************************************/ | |
9424 | int validate_container_imsm(struct mdinfo *info) | |
9425 | { | |
6b781d33 AP |
9426 | if (check_env("IMSM_NO_PLATFORM")) |
9427 | return 0; | |
d31ad643 | 9428 | |
6b781d33 AP |
9429 | struct sys_dev *idev; |
9430 | struct sys_dev *hba = NULL; | |
9431 | struct sys_dev *intel_devices = find_intel_devices(); | |
9432 | char *dev_path = devt_to_devpath(makedev(info->disk.major, | |
9433 | info->disk.minor)); | |
9434 | ||
9435 | for (idev = intel_devices; idev; idev = idev->next) { | |
9436 | if (dev_path && strstr(dev_path, idev->path)) { | |
9437 | hba = idev; | |
9438 | break; | |
d31ad643 | 9439 | } |
6b781d33 AP |
9440 | } |
9441 | if (dev_path) | |
d31ad643 PB |
9442 | free(dev_path); |
9443 | ||
6b781d33 AP |
9444 | if (!hba) { |
9445 | pr_err("WARNING - Cannot detect HBA for device %s!\n", | |
9446 | devid2kname(makedev(info->disk.major, info->disk.minor))); | |
9447 | return 1; | |
9448 | } | |
9449 | ||
9450 | const struct imsm_orom *orom = get_orom_by_device_id(hba->dev_id); | |
9451 | struct mdinfo *dev; | |
9452 | ||
9453 | for (dev = info->next; dev; dev = dev->next) { | |
9454 | dev_path = devt_to_devpath(makedev(dev->disk.major, dev->disk.minor)); | |
9455 | ||
9456 | struct sys_dev *hba2 = NULL; | |
9457 | for (idev = intel_devices; idev; idev = idev->next) { | |
9458 | if (dev_path && strstr(dev_path, idev->path)) { | |
9459 | hba2 = idev; | |
9460 | break; | |
d31ad643 PB |
9461 | } |
9462 | } | |
6b781d33 AP |
9463 | if (dev_path) |
9464 | free(dev_path); | |
9465 | ||
9466 | const struct imsm_orom *orom2 = hba2 == NULL ? NULL : | |
9467 | get_orom_by_device_id(hba2->dev_id); | |
9468 | ||
9469 | if (hba2 && hba->type != hba2->type) { | |
9470 | pr_err("WARNING - HBAs of devices do not match %s != %s\n", | |
9471 | get_sys_dev_type(hba->type), get_sys_dev_type(hba2->type)); | |
9472 | return 1; | |
9473 | } | |
9474 | ||
07cb1e57 | 9475 | if (orom != orom2) { |
6b781d33 AP |
9476 | pr_err("WARNING - IMSM container assembled with disks under different HBAs!\n" |
9477 | " This operation is not supported and can lead to data loss.\n"); | |
9478 | return 1; | |
9479 | } | |
9480 | ||
9481 | if (!orom) { | |
9482 | pr_err("WARNING - IMSM container assembled with disks under HBAs without IMSM platform support!\n" | |
9483 | " This operation is not supported and can lead to data loss.\n"); | |
9484 | return 1; | |
9485 | } | |
d31ad643 | 9486 | } |
6b781d33 | 9487 | |
d31ad643 PB |
9488 | return 0; |
9489 | } | |
9e2d750d | 9490 | #ifndef MDASSEMBLE |
687629c2 AK |
9491 | /******************************************************************************* |
9492 | * Function: init_migr_record_imsm | |
9493 | * Description: Function inits imsm migration record | |
9494 | * Parameters: | |
9495 | * super : imsm internal array info | |
9496 | * dev : device under migration | |
9497 | * info : general array info to find the smallest device | |
9498 | * Returns: | |
9499 | * none | |
9500 | ******************************************************************************/ | |
9501 | void init_migr_record_imsm(struct supertype *st, struct imsm_dev *dev, | |
9502 | struct mdinfo *info) | |
9503 | { | |
9504 | struct intel_super *super = st->sb; | |
9505 | struct migr_record *migr_rec = super->migr_rec; | |
9506 | int new_data_disks; | |
9507 | unsigned long long dsize, dev_sectors; | |
9508 | long long unsigned min_dev_sectors = -1LLU; | |
9509 | struct mdinfo *sd; | |
9510 | char nm[30]; | |
9511 | int fd; | |
238c0a71 AK |
9512 | struct imsm_map *map_dest = get_imsm_map(dev, MAP_0); |
9513 | struct imsm_map *map_src = get_imsm_map(dev, MAP_1); | |
687629c2 | 9514 | unsigned long long num_migr_units; |
3ef4403c | 9515 | unsigned long long array_blocks; |
687629c2 AK |
9516 | |
9517 | memset(migr_rec, 0, sizeof(struct migr_record)); | |
9518 | migr_rec->family_num = __cpu_to_le32(super->anchor->family_num); | |
9519 | ||
9520 | /* only ascending reshape supported now */ | |
9521 | migr_rec->ascending_migr = __cpu_to_le32(1); | |
9522 | ||
9523 | migr_rec->dest_depth_per_unit = GEN_MIGR_AREA_SIZE / | |
9524 | max(map_dest->blocks_per_strip, map_src->blocks_per_strip); | |
e1742195 AK |
9525 | migr_rec->dest_depth_per_unit *= |
9526 | max(map_dest->blocks_per_strip, map_src->blocks_per_strip); | |
238c0a71 | 9527 | new_data_disks = imsm_num_data_members(dev, MAP_0); |
687629c2 AK |
9528 | migr_rec->blocks_per_unit = |
9529 | __cpu_to_le32(migr_rec->dest_depth_per_unit * new_data_disks); | |
9530 | migr_rec->dest_depth_per_unit = | |
9531 | __cpu_to_le32(migr_rec->dest_depth_per_unit); | |
3ef4403c | 9532 | array_blocks = info->component_size * new_data_disks; |
687629c2 AK |
9533 | num_migr_units = |
9534 | array_blocks / __le32_to_cpu(migr_rec->blocks_per_unit); | |
9535 | ||
9536 | if (array_blocks % __le32_to_cpu(migr_rec->blocks_per_unit)) | |
9537 | num_migr_units++; | |
9538 | migr_rec->num_migr_units = __cpu_to_le32(num_migr_units); | |
9539 | ||
9540 | migr_rec->post_migr_vol_cap = dev->size_low; | |
9541 | migr_rec->post_migr_vol_cap_hi = dev->size_high; | |
9542 | ||
687629c2 AK |
9543 | /* Find the smallest dev */ |
9544 | for (sd = info->devs ; sd ; sd = sd->next) { | |
9545 | sprintf(nm, "%d:%d", sd->disk.major, sd->disk.minor); | |
9546 | fd = dev_open(nm, O_RDONLY); | |
9547 | if (fd < 0) | |
9548 | continue; | |
9549 | get_dev_size(fd, NULL, &dsize); | |
9550 | dev_sectors = dsize / 512; | |
9551 | if (dev_sectors < min_dev_sectors) | |
9552 | min_dev_sectors = dev_sectors; | |
9553 | close(fd); | |
9554 | } | |
9555 | migr_rec->ckpt_area_pba = __cpu_to_le32(min_dev_sectors - | |
9556 | RAID_DISK_RESERVED_BLOCKS_IMSM_HI); | |
9557 | ||
9558 | write_imsm_migr_rec(st); | |
9559 | ||
9560 | return; | |
9561 | } | |
9562 | ||
9563 | /******************************************************************************* | |
9564 | * Function: save_backup_imsm | |
9565 | * Description: Function saves critical data stripes to Migration Copy Area | |
9566 | * and updates the current migration unit status. | |
9567 | * Use restore_stripes() to form a destination stripe, | |
9568 | * and to write it to the Copy Area. | |
9569 | * Parameters: | |
9570 | * st : supertype information | |
aea93171 | 9571 | * dev : imsm device that backup is saved for |
687629c2 AK |
9572 | * info : general array info |
9573 | * buf : input buffer | |
687629c2 AK |
9574 | * length : length of data to backup (blocks_per_unit) |
9575 | * Returns: | |
9576 | * 0 : success | |
9577 | *, -1 : fail | |
9578 | ******************************************************************************/ | |
9579 | int save_backup_imsm(struct supertype *st, | |
9580 | struct imsm_dev *dev, | |
9581 | struct mdinfo *info, | |
9582 | void *buf, | |
687629c2 AK |
9583 | int length) |
9584 | { | |
9585 | int rv = -1; | |
9586 | struct intel_super *super = st->sb; | |
594dc1b8 JS |
9587 | unsigned long long *target_offsets; |
9588 | int *targets; | |
687629c2 | 9589 | int i; |
238c0a71 | 9590 | struct imsm_map *map_dest = get_imsm_map(dev, MAP_0); |
687629c2 | 9591 | int new_disks = map_dest->num_members; |
ab724b98 AK |
9592 | int dest_layout = 0; |
9593 | int dest_chunk; | |
d1877f69 | 9594 | unsigned long long start; |
238c0a71 | 9595 | int data_disks = imsm_num_data_members(dev, MAP_0); |
687629c2 | 9596 | |
503975b9 | 9597 | targets = xmalloc(new_disks * sizeof(int)); |
687629c2 | 9598 | |
7e45b550 AK |
9599 | for (i = 0; i < new_disks; i++) |
9600 | targets[i] = -1; | |
9601 | ||
503975b9 | 9602 | target_offsets = xcalloc(new_disks, sizeof(unsigned long long)); |
687629c2 | 9603 | |
d1877f69 | 9604 | start = info->reshape_progress * 512; |
687629c2 | 9605 | for (i = 0; i < new_disks; i++) { |
687629c2 AK |
9606 | target_offsets[i] = (unsigned long long) |
9607 | __le32_to_cpu(super->migr_rec->ckpt_area_pba) * 512; | |
d1877f69 AK |
9608 | /* move back copy area adderss, it will be moved forward |
9609 | * in restore_stripes() using start input variable | |
9610 | */ | |
9611 | target_offsets[i] -= start/data_disks; | |
687629c2 AK |
9612 | } |
9613 | ||
9a717282 AK |
9614 | if (open_backup_targets(info, new_disks, targets, |
9615 | super, dev)) | |
687629c2 AK |
9616 | goto abort; |
9617 | ||
68eb8bc6 | 9618 | dest_layout = imsm_level_to_layout(map_dest->raid_level); |
ab724b98 AK |
9619 | dest_chunk = __le16_to_cpu(map_dest->blocks_per_strip) * 512; |
9620 | ||
687629c2 AK |
9621 | if (restore_stripes(targets, /* list of dest devices */ |
9622 | target_offsets, /* migration record offsets */ | |
9623 | new_disks, | |
ab724b98 AK |
9624 | dest_chunk, |
9625 | map_dest->raid_level, | |
9626 | dest_layout, | |
9627 | -1, /* source backup file descriptor */ | |
9628 | 0, /* input buf offset | |
9629 | * always 0 buf is already offseted */ | |
d1877f69 | 9630 | start, |
687629c2 AK |
9631 | length, |
9632 | buf) != 0) { | |
e7b84f9d | 9633 | pr_err("Error restoring stripes\n"); |
687629c2 AK |
9634 | goto abort; |
9635 | } | |
9636 | ||
9637 | rv = 0; | |
9638 | ||
9639 | abort: | |
9640 | if (targets) { | |
9a717282 | 9641 | close_targets(targets, new_disks); |
687629c2 AK |
9642 | free(targets); |
9643 | } | |
9644 | free(target_offsets); | |
9645 | ||
9646 | return rv; | |
9647 | } | |
9648 | ||
9649 | /******************************************************************************* | |
9650 | * Function: save_checkpoint_imsm | |
9651 | * Description: Function called for current unit status update | |
9652 | * in the migration record. It writes it to disk. | |
9653 | * Parameters: | |
9654 | * super : imsm internal array info | |
9655 | * info : general array info | |
9656 | * Returns: | |
9657 | * 0: success | |
9658 | * 1: failure | |
0228d92c AK |
9659 | * 2: failure, means no valid migration record |
9660 | * / no general migration in progress / | |
687629c2 AK |
9661 | ******************************************************************************/ |
9662 | int save_checkpoint_imsm(struct supertype *st, struct mdinfo *info, int state) | |
9663 | { | |
9664 | struct intel_super *super = st->sb; | |
f8b72ef5 AK |
9665 | unsigned long long blocks_per_unit; |
9666 | unsigned long long curr_migr_unit; | |
9667 | ||
2e062e82 | 9668 | if (load_imsm_migr_rec(super, info) != 0) { |
7a862a02 | 9669 | dprintf("imsm: ERROR: Cannot read migration record for checkpoint save.\n"); |
2e062e82 AK |
9670 | return 1; |
9671 | } | |
9672 | ||
f8b72ef5 AK |
9673 | blocks_per_unit = __le32_to_cpu(super->migr_rec->blocks_per_unit); |
9674 | if (blocks_per_unit == 0) { | |
0228d92c AK |
9675 | dprintf("imsm: no migration in progress.\n"); |
9676 | return 2; | |
687629c2 | 9677 | } |
f8b72ef5 AK |
9678 | curr_migr_unit = info->reshape_progress / blocks_per_unit; |
9679 | /* check if array is alligned to copy area | |
9680 | * if it is not alligned, add one to current migration unit value | |
9681 | * this can happend on array reshape finish only | |
9682 | */ | |
9683 | if (info->reshape_progress % blocks_per_unit) | |
9684 | curr_migr_unit++; | |
687629c2 AK |
9685 | |
9686 | super->migr_rec->curr_migr_unit = | |
f8b72ef5 | 9687 | __cpu_to_le32(curr_migr_unit); |
687629c2 AK |
9688 | super->migr_rec->rec_status = __cpu_to_le32(state); |
9689 | super->migr_rec->dest_1st_member_lba = | |
f8b72ef5 AK |
9690 | __cpu_to_le32(curr_migr_unit * |
9691 | __le32_to_cpu(super->migr_rec->dest_depth_per_unit)); | |
687629c2 | 9692 | if (write_imsm_migr_rec(st) < 0) { |
7a862a02 | 9693 | dprintf("imsm: Cannot write migration record outside backup area\n"); |
687629c2 AK |
9694 | return 1; |
9695 | } | |
9696 | ||
9697 | return 0; | |
9698 | } | |
9699 | ||
276d77db AK |
9700 | /******************************************************************************* |
9701 | * Function: recover_backup_imsm | |
9702 | * Description: Function recovers critical data from the Migration Copy Area | |
9703 | * while assembling an array. | |
9704 | * Parameters: | |
9705 | * super : imsm internal array info | |
9706 | * info : general array info | |
9707 | * Returns: | |
9708 | * 0 : success (or there is no data to recover) | |
9709 | * 1 : fail | |
9710 | ******************************************************************************/ | |
9711 | int recover_backup_imsm(struct supertype *st, struct mdinfo *info) | |
9712 | { | |
9713 | struct intel_super *super = st->sb; | |
9714 | struct migr_record *migr_rec = super->migr_rec; | |
594dc1b8 | 9715 | struct imsm_map *map_dest; |
276d77db AK |
9716 | struct intel_dev *id = NULL; |
9717 | unsigned long long read_offset; | |
9718 | unsigned long long write_offset; | |
9719 | unsigned unit_len; | |
9720 | int *targets = NULL; | |
9721 | int new_disks, i, err; | |
9722 | char *buf = NULL; | |
9723 | int retval = 1; | |
f36a9ecd | 9724 | unsigned int sector_size = super->sector_size; |
276d77db AK |
9725 | unsigned long curr_migr_unit = __le32_to_cpu(migr_rec->curr_migr_unit); |
9726 | unsigned long num_migr_units = __le32_to_cpu(migr_rec->num_migr_units); | |
276d77db | 9727 | char buffer[20]; |
6c3560c0 | 9728 | int skipped_disks = 0; |
276d77db AK |
9729 | |
9730 | err = sysfs_get_str(info, NULL, "array_state", (char *)buffer, 20); | |
9731 | if (err < 1) | |
9732 | return 1; | |
9733 | ||
9734 | /* recover data only during assemblation */ | |
9735 | if (strncmp(buffer, "inactive", 8) != 0) | |
9736 | return 0; | |
9737 | /* no data to recover */ | |
9738 | if (__le32_to_cpu(migr_rec->rec_status) == UNIT_SRC_NORMAL) | |
9739 | return 0; | |
9740 | if (curr_migr_unit >= num_migr_units) | |
9741 | return 1; | |
9742 | ||
9743 | /* find device during reshape */ | |
9744 | for (id = super->devlist; id; id = id->next) | |
9745 | if (is_gen_migration(id->dev)) | |
9746 | break; | |
9747 | if (id == NULL) | |
9748 | return 1; | |
9749 | ||
238c0a71 | 9750 | map_dest = get_imsm_map(id->dev, MAP_0); |
276d77db AK |
9751 | new_disks = map_dest->num_members; |
9752 | ||
9753 | read_offset = (unsigned long long) | |
9754 | __le32_to_cpu(migr_rec->ckpt_area_pba) * 512; | |
9755 | ||
9756 | write_offset = ((unsigned long long) | |
9757 | __le32_to_cpu(migr_rec->dest_1st_member_lba) + | |
5551b113 | 9758 | pba_of_lba0(map_dest)) * 512; |
276d77db AK |
9759 | |
9760 | unit_len = __le32_to_cpu(migr_rec->dest_depth_per_unit) * 512; | |
f36a9ecd | 9761 | if (posix_memalign((void **)&buf, sector_size, unit_len) != 0) |
276d77db | 9762 | goto abort; |
503975b9 | 9763 | targets = xcalloc(new_disks, sizeof(int)); |
276d77db | 9764 | |
9a717282 | 9765 | if (open_backup_targets(info, new_disks, targets, super, id->dev)) { |
e7b84f9d | 9766 | pr_err("Cannot open some devices belonging to array.\n"); |
f627f5ad AK |
9767 | goto abort; |
9768 | } | |
276d77db AK |
9769 | |
9770 | for (i = 0; i < new_disks; i++) { | |
6c3560c0 AK |
9771 | if (targets[i] < 0) { |
9772 | skipped_disks++; | |
9773 | continue; | |
9774 | } | |
276d77db | 9775 | if (lseek64(targets[i], read_offset, SEEK_SET) < 0) { |
e7b84f9d N |
9776 | pr_err("Cannot seek to block: %s\n", |
9777 | strerror(errno)); | |
137debce AK |
9778 | skipped_disks++; |
9779 | continue; | |
276d77db | 9780 | } |
9ec11d1a | 9781 | if ((unsigned)read(targets[i], buf, unit_len) != unit_len) { |
e7b84f9d N |
9782 | pr_err("Cannot read copy area block: %s\n", |
9783 | strerror(errno)); | |
137debce AK |
9784 | skipped_disks++; |
9785 | continue; | |
276d77db AK |
9786 | } |
9787 | if (lseek64(targets[i], write_offset, SEEK_SET) < 0) { | |
e7b84f9d N |
9788 | pr_err("Cannot seek to block: %s\n", |
9789 | strerror(errno)); | |
137debce AK |
9790 | skipped_disks++; |
9791 | continue; | |
276d77db | 9792 | } |
9ec11d1a | 9793 | if ((unsigned)write(targets[i], buf, unit_len) != unit_len) { |
e7b84f9d N |
9794 | pr_err("Cannot restore block: %s\n", |
9795 | strerror(errno)); | |
137debce AK |
9796 | skipped_disks++; |
9797 | continue; | |
276d77db AK |
9798 | } |
9799 | } | |
9800 | ||
137debce AK |
9801 | if (skipped_disks > imsm_get_allowed_degradation(info->new_level, |
9802 | new_disks, | |
9803 | super, | |
9804 | id->dev)) { | |
7a862a02 | 9805 | pr_err("Cannot restore data from backup. Too many failed disks\n"); |
6c3560c0 AK |
9806 | goto abort; |
9807 | } | |
9808 | ||
befb629b AK |
9809 | if (save_checkpoint_imsm(st, info, UNIT_SRC_NORMAL)) { |
9810 | /* ignore error == 2, this can mean end of reshape here | |
9811 | */ | |
7a862a02 | 9812 | dprintf("imsm: Cannot write checkpoint to migration record (UNIT_SRC_NORMAL) during restart\n"); |
befb629b | 9813 | } else |
276d77db | 9814 | retval = 0; |
276d77db AK |
9815 | |
9816 | abort: | |
9817 | if (targets) { | |
9818 | for (i = 0; i < new_disks; i++) | |
9819 | if (targets[i]) | |
9820 | close(targets[i]); | |
9821 | free(targets); | |
9822 | } | |
9823 | free(buf); | |
9824 | return retval; | |
9825 | } | |
9826 | ||
2cda7640 ML |
9827 | static char disk_by_path[] = "/dev/disk/by-path/"; |
9828 | ||
9829 | static const char *imsm_get_disk_controller_domain(const char *path) | |
9830 | { | |
2cda7640 | 9831 | char disk_path[PATH_MAX]; |
96234762 LM |
9832 | char *drv=NULL; |
9833 | struct stat st; | |
2cda7640 | 9834 | |
6d8d290a | 9835 | strcpy(disk_path, disk_by_path); |
96234762 LM |
9836 | strncat(disk_path, path, PATH_MAX - strlen(disk_path) - 1); |
9837 | if (stat(disk_path, &st) == 0) { | |
9838 | struct sys_dev* hba; | |
594dc1b8 | 9839 | char *path; |
96234762 LM |
9840 | |
9841 | path = devt_to_devpath(st.st_rdev); | |
9842 | if (path == NULL) | |
9843 | return "unknown"; | |
9844 | hba = find_disk_attached_hba(-1, path); | |
9845 | if (hba && hba->type == SYS_DEV_SAS) | |
9846 | drv = "isci"; | |
9847 | else if (hba && hba->type == SYS_DEV_SATA) | |
9848 | drv = "ahci"; | |
1011e834 | 9849 | else |
96234762 LM |
9850 | drv = "unknown"; |
9851 | dprintf("path: %s hba: %s attached: %s\n", | |
9852 | path, (hba) ? hba->path : "NULL", drv); | |
9853 | free(path); | |
2cda7640 | 9854 | } |
96234762 | 9855 | return drv; |
2cda7640 ML |
9856 | } |
9857 | ||
4dd2df09 | 9858 | static char *imsm_find_array_devnm_by_subdev(int subdev, char *container) |
78b10e66 | 9859 | { |
4dd2df09 | 9860 | static char devnm[32]; |
78b10e66 N |
9861 | char subdev_name[20]; |
9862 | struct mdstat_ent *mdstat; | |
9863 | ||
9864 | sprintf(subdev_name, "%d", subdev); | |
9865 | mdstat = mdstat_by_subdev(subdev_name, container); | |
9866 | if (!mdstat) | |
4dd2df09 | 9867 | return NULL; |
78b10e66 | 9868 | |
4dd2df09 | 9869 | strcpy(devnm, mdstat->devnm); |
78b10e66 | 9870 | free_mdstat(mdstat); |
4dd2df09 | 9871 | return devnm; |
78b10e66 N |
9872 | } |
9873 | ||
9874 | static int imsm_reshape_is_allowed_on_container(struct supertype *st, | |
9875 | struct geo_params *geo, | |
fbf3d202 AK |
9876 | int *old_raid_disks, |
9877 | int direction) | |
78b10e66 | 9878 | { |
694575e7 KW |
9879 | /* currently we only support increasing the number of devices |
9880 | * for a container. This increases the number of device for each | |
9881 | * member array. They must all be RAID0 or RAID5. | |
9882 | */ | |
78b10e66 N |
9883 | int ret_val = 0; |
9884 | struct mdinfo *info, *member; | |
9885 | int devices_that_can_grow = 0; | |
9886 | ||
7a862a02 | 9887 | dprintf("imsm: imsm_reshape_is_allowed_on_container(ENTER): st->devnm = (%s)\n", st->devnm); |
78b10e66 | 9888 | |
d04f65f4 | 9889 | if (geo->size > 0 || |
78b10e66 N |
9890 | geo->level != UnSet || |
9891 | geo->layout != UnSet || | |
9892 | geo->chunksize != 0 || | |
9893 | geo->raid_disks == UnSet) { | |
7a862a02 | 9894 | dprintf("imsm: Container operation is allowed for raid disks number change only.\n"); |
78b10e66 N |
9895 | return ret_val; |
9896 | } | |
9897 | ||
fbf3d202 | 9898 | if (direction == ROLLBACK_METADATA_CHANGES) { |
7a862a02 | 9899 | dprintf("imsm: Metadata changes rollback is not supported for container operation.\n"); |
fbf3d202 AK |
9900 | return ret_val; |
9901 | } | |
9902 | ||
78b10e66 N |
9903 | info = container_content_imsm(st, NULL); |
9904 | for (member = info; member; member = member->next) { | |
4dd2df09 | 9905 | char *result; |
78b10e66 N |
9906 | |
9907 | dprintf("imsm: checking device_num: %i\n", | |
9908 | member->container_member); | |
9909 | ||
d7d205bd | 9910 | if (geo->raid_disks <= member->array.raid_disks) { |
78b10e66 N |
9911 | /* we work on container for Online Capacity Expansion |
9912 | * only so raid_disks has to grow | |
9913 | */ | |
7a862a02 | 9914 | dprintf("imsm: for container operation raid disks increase is required\n"); |
78b10e66 N |
9915 | break; |
9916 | } | |
9917 | ||
089f9d79 | 9918 | if (info->array.level != 0 && info->array.level != 5) { |
78b10e66 N |
9919 | /* we cannot use this container with other raid level |
9920 | */ | |
7a862a02 | 9921 | dprintf("imsm: for container operation wrong raid level (%i) detected\n", |
78b10e66 N |
9922 | info->array.level); |
9923 | break; | |
9924 | } else { | |
9925 | /* check for platform support | |
9926 | * for this raid level configuration | |
9927 | */ | |
9928 | struct intel_super *super = st->sb; | |
9929 | if (!is_raid_level_supported(super->orom, | |
9930 | member->array.level, | |
9931 | geo->raid_disks)) { | |
7a862a02 | 9932 | dprintf("platform does not support raid%d with %d disk%s\n", |
78b10e66 N |
9933 | info->array.level, |
9934 | geo->raid_disks, | |
9935 | geo->raid_disks > 1 ? "s" : ""); | |
9936 | break; | |
9937 | } | |
2a4a08e7 AK |
9938 | /* check if component size is aligned to chunk size |
9939 | */ | |
9940 | if (info->component_size % | |
9941 | (info->array.chunk_size/512)) { | |
7a862a02 | 9942 | dprintf("Component size is not aligned to chunk size\n"); |
2a4a08e7 AK |
9943 | break; |
9944 | } | |
78b10e66 N |
9945 | } |
9946 | ||
9947 | if (*old_raid_disks && | |
9948 | info->array.raid_disks != *old_raid_disks) | |
9949 | break; | |
9950 | *old_raid_disks = info->array.raid_disks; | |
9951 | ||
9952 | /* All raid5 and raid0 volumes in container | |
9953 | * have to be ready for Online Capacity Expansion | |
9954 | * so they need to be assembled. We have already | |
9955 | * checked that no recovery etc is happening. | |
9956 | */ | |
4dd2df09 N |
9957 | result = imsm_find_array_devnm_by_subdev(member->container_member, |
9958 | st->container_devnm); | |
9959 | if (result == NULL) { | |
78b10e66 N |
9960 | dprintf("imsm: cannot find array\n"); |
9961 | break; | |
9962 | } | |
9963 | devices_that_can_grow++; | |
9964 | } | |
9965 | sysfs_free(info); | |
9966 | if (!member && devices_that_can_grow) | |
9967 | ret_val = 1; | |
9968 | ||
9969 | if (ret_val) | |
1ade5cc1 | 9970 | dprintf("Container operation allowed\n"); |
78b10e66 | 9971 | else |
1ade5cc1 | 9972 | dprintf("Error: %i\n", ret_val); |
78b10e66 N |
9973 | |
9974 | return ret_val; | |
9975 | } | |
9976 | ||
9977 | /* Function: get_spares_for_grow | |
9978 | * Description: Allocates memory and creates list of spare devices | |
1011e834 | 9979 | * avaliable in container. Checks if spare drive size is acceptable. |
78b10e66 N |
9980 | * Parameters: Pointer to the supertype structure |
9981 | * Returns: Pointer to the list of spare devices (mdinfo structure) on success, | |
1011e834 | 9982 | * NULL if fail |
78b10e66 N |
9983 | */ |
9984 | static struct mdinfo *get_spares_for_grow(struct supertype *st) | |
9985 | { | |
78b10e66 | 9986 | unsigned long long min_size = min_acceptable_spare_size_imsm(st); |
326727d9 | 9987 | return container_choose_spares(st, min_size, NULL, NULL, NULL, 0); |
78b10e66 N |
9988 | } |
9989 | ||
9990 | /****************************************************************************** | |
9991 | * function: imsm_create_metadata_update_for_reshape | |
9992 | * Function creates update for whole IMSM container. | |
9993 | * | |
9994 | ******************************************************************************/ | |
9995 | static int imsm_create_metadata_update_for_reshape( | |
9996 | struct supertype *st, | |
9997 | struct geo_params *geo, | |
9998 | int old_raid_disks, | |
9999 | struct imsm_update_reshape **updatep) | |
10000 | { | |
10001 | struct intel_super *super = st->sb; | |
10002 | struct imsm_super *mpb = super->anchor; | |
594dc1b8 JS |
10003 | int update_memory_size; |
10004 | struct imsm_update_reshape *u; | |
10005 | struct mdinfo *spares; | |
78b10e66 | 10006 | int i; |
594dc1b8 | 10007 | int delta_disks; |
bbd24d86 | 10008 | struct mdinfo *dev; |
78b10e66 | 10009 | |
1ade5cc1 | 10010 | dprintf("(enter) raid_disks = %i\n", geo->raid_disks); |
78b10e66 N |
10011 | |
10012 | delta_disks = geo->raid_disks - old_raid_disks; | |
10013 | ||
10014 | /* size of all update data without anchor */ | |
10015 | update_memory_size = sizeof(struct imsm_update_reshape); | |
10016 | ||
10017 | /* now add space for spare disks that we need to add. */ | |
10018 | update_memory_size += sizeof(u->new_disks[0]) * (delta_disks - 1); | |
10019 | ||
503975b9 | 10020 | u = xcalloc(1, update_memory_size); |
78b10e66 N |
10021 | u->type = update_reshape_container_disks; |
10022 | u->old_raid_disks = old_raid_disks; | |
10023 | u->new_raid_disks = geo->raid_disks; | |
10024 | ||
10025 | /* now get spare disks list | |
10026 | */ | |
10027 | spares = get_spares_for_grow(st); | |
10028 | ||
10029 | if (spares == NULL | |
10030 | || delta_disks > spares->array.spare_disks) { | |
7a862a02 | 10031 | pr_err("imsm: ERROR: Cannot get spare devices for %s.\n", geo->dev_name); |
e4c72d1d | 10032 | i = -1; |
78b10e66 N |
10033 | goto abort; |
10034 | } | |
10035 | ||
10036 | /* we have got spares | |
10037 | * update disk list in imsm_disk list table in anchor | |
10038 | */ | |
10039 | dprintf("imsm: %i spares are available.\n\n", | |
10040 | spares->array.spare_disks); | |
10041 | ||
bbd24d86 | 10042 | dev = spares->devs; |
78b10e66 | 10043 | for (i = 0; i < delta_disks; i++) { |
78b10e66 N |
10044 | struct dl *dl; |
10045 | ||
bbd24d86 AK |
10046 | if (dev == NULL) |
10047 | break; | |
78b10e66 N |
10048 | u->new_disks[i] = makedev(dev->disk.major, |
10049 | dev->disk.minor); | |
10050 | dl = get_disk_super(super, dev->disk.major, dev->disk.minor); | |
ee4beede AK |
10051 | dl->index = mpb->num_disks; |
10052 | mpb->num_disks++; | |
bbd24d86 | 10053 | dev = dev->next; |
78b10e66 | 10054 | } |
78b10e66 N |
10055 | |
10056 | abort: | |
10057 | /* free spares | |
10058 | */ | |
10059 | sysfs_free(spares); | |
10060 | ||
d677e0b8 | 10061 | dprintf("imsm: reshape update preparation :"); |
78b10e66 | 10062 | if (i == delta_disks) { |
1ade5cc1 | 10063 | dprintf_cont(" OK\n"); |
78b10e66 N |
10064 | *updatep = u; |
10065 | return update_memory_size; | |
10066 | } | |
10067 | free(u); | |
1ade5cc1 | 10068 | dprintf_cont(" Error\n"); |
78b10e66 N |
10069 | |
10070 | return 0; | |
10071 | } | |
10072 | ||
f3871fdc AK |
10073 | /****************************************************************************** |
10074 | * function: imsm_create_metadata_update_for_size_change() | |
10075 | * Creates update for IMSM array for array size change. | |
10076 | * | |
10077 | ******************************************************************************/ | |
10078 | static int imsm_create_metadata_update_for_size_change( | |
10079 | struct supertype *st, | |
10080 | struct geo_params *geo, | |
10081 | struct imsm_update_size_change **updatep) | |
10082 | { | |
10083 | struct intel_super *super = st->sb; | |
594dc1b8 JS |
10084 | int update_memory_size; |
10085 | struct imsm_update_size_change *u; | |
f3871fdc | 10086 | |
1ade5cc1 | 10087 | dprintf("(enter) New size = %llu\n", geo->size); |
f3871fdc AK |
10088 | |
10089 | /* size of all update data without anchor */ | |
10090 | update_memory_size = sizeof(struct imsm_update_size_change); | |
10091 | ||
503975b9 | 10092 | u = xcalloc(1, update_memory_size); |
f3871fdc AK |
10093 | u->type = update_size_change; |
10094 | u->subdev = super->current_vol; | |
10095 | u->new_size = geo->size; | |
10096 | ||
10097 | dprintf("imsm: reshape update preparation : OK\n"); | |
10098 | *updatep = u; | |
10099 | ||
10100 | return update_memory_size; | |
10101 | } | |
10102 | ||
48c5303a PC |
10103 | /****************************************************************************** |
10104 | * function: imsm_create_metadata_update_for_migration() | |
10105 | * Creates update for IMSM array. | |
10106 | * | |
10107 | ******************************************************************************/ | |
10108 | static int imsm_create_metadata_update_for_migration( | |
10109 | struct supertype *st, | |
10110 | struct geo_params *geo, | |
10111 | struct imsm_update_reshape_migration **updatep) | |
10112 | { | |
10113 | struct intel_super *super = st->sb; | |
594dc1b8 JS |
10114 | int update_memory_size; |
10115 | struct imsm_update_reshape_migration *u; | |
48c5303a PC |
10116 | struct imsm_dev *dev; |
10117 | int previous_level = -1; | |
10118 | ||
1ade5cc1 | 10119 | dprintf("(enter) New Level = %i\n", geo->level); |
48c5303a PC |
10120 | |
10121 | /* size of all update data without anchor */ | |
10122 | update_memory_size = sizeof(struct imsm_update_reshape_migration); | |
10123 | ||
503975b9 | 10124 | u = xcalloc(1, update_memory_size); |
48c5303a PC |
10125 | u->type = update_reshape_migration; |
10126 | u->subdev = super->current_vol; | |
10127 | u->new_level = geo->level; | |
10128 | u->new_layout = geo->layout; | |
10129 | u->new_raid_disks = u->old_raid_disks = geo->raid_disks; | |
10130 | u->new_disks[0] = -1; | |
4bba0439 | 10131 | u->new_chunksize = -1; |
48c5303a PC |
10132 | |
10133 | dev = get_imsm_dev(super, u->subdev); | |
10134 | if (dev) { | |
10135 | struct imsm_map *map; | |
10136 | ||
238c0a71 | 10137 | map = get_imsm_map(dev, MAP_0); |
4bba0439 PC |
10138 | if (map) { |
10139 | int current_chunk_size = | |
10140 | __le16_to_cpu(map->blocks_per_strip) / 2; | |
10141 | ||
10142 | if (geo->chunksize != current_chunk_size) { | |
10143 | u->new_chunksize = geo->chunksize / 1024; | |
7a862a02 | 10144 | dprintf("imsm: chunk size change from %i to %i\n", |
4bba0439 PC |
10145 | current_chunk_size, u->new_chunksize); |
10146 | } | |
48c5303a | 10147 | previous_level = map->raid_level; |
4bba0439 | 10148 | } |
48c5303a | 10149 | } |
089f9d79 | 10150 | if (geo->level == 5 && previous_level == 0) { |
48c5303a PC |
10151 | struct mdinfo *spares = NULL; |
10152 | ||
10153 | u->new_raid_disks++; | |
10154 | spares = get_spares_for_grow(st); | |
089f9d79 | 10155 | if (spares == NULL || spares->array.spare_disks < 1) { |
48c5303a PC |
10156 | free(u); |
10157 | sysfs_free(spares); | |
10158 | update_memory_size = 0; | |
7a862a02 | 10159 | dprintf("error: cannot get spare device for requested migration"); |
48c5303a PC |
10160 | return 0; |
10161 | } | |
10162 | sysfs_free(spares); | |
10163 | } | |
10164 | dprintf("imsm: reshape update preparation : OK\n"); | |
10165 | *updatep = u; | |
10166 | ||
10167 | return update_memory_size; | |
10168 | } | |
10169 | ||
8dd70bce AK |
10170 | static void imsm_update_metadata_locally(struct supertype *st, |
10171 | void *buf, int len) | |
10172 | { | |
10173 | struct metadata_update mu; | |
10174 | ||
10175 | mu.buf = buf; | |
10176 | mu.len = len; | |
10177 | mu.space = NULL; | |
10178 | mu.space_list = NULL; | |
10179 | mu.next = NULL; | |
5fe6f031 N |
10180 | if (imsm_prepare_update(st, &mu)) |
10181 | imsm_process_update(st, &mu); | |
8dd70bce AK |
10182 | |
10183 | while (mu.space_list) { | |
10184 | void **space = mu.space_list; | |
10185 | mu.space_list = *space; | |
10186 | free(space); | |
10187 | } | |
10188 | } | |
78b10e66 | 10189 | |
471bceb6 | 10190 | /*************************************************************************** |
694575e7 | 10191 | * Function: imsm_analyze_change |
471bceb6 | 10192 | * Description: Function analyze change for single volume |
1011e834 | 10193 | * and validate if transition is supported |
fbf3d202 AK |
10194 | * Parameters: Geometry parameters, supertype structure, |
10195 | * metadata change direction (apply/rollback) | |
694575e7 | 10196 | * Returns: Operation type code on success, -1 if fail |
471bceb6 KW |
10197 | ****************************************************************************/ |
10198 | enum imsm_reshape_type imsm_analyze_change(struct supertype *st, | |
fbf3d202 AK |
10199 | struct geo_params *geo, |
10200 | int direction) | |
694575e7 | 10201 | { |
471bceb6 KW |
10202 | struct mdinfo info; |
10203 | int change = -1; | |
10204 | int check_devs = 0; | |
c21e737b | 10205 | int chunk; |
67a2db32 AK |
10206 | /* number of added/removed disks in operation result */ |
10207 | int devNumChange = 0; | |
10208 | /* imsm compatible layout value for array geometry verification */ | |
10209 | int imsm_layout = -1; | |
7abc9871 AK |
10210 | int data_disks; |
10211 | struct imsm_dev *dev; | |
10212 | struct intel_super *super; | |
d04f65f4 | 10213 | unsigned long long current_size; |
65d38cca | 10214 | unsigned long long free_size; |
d04f65f4 | 10215 | unsigned long long max_size; |
65d38cca | 10216 | int rv; |
471bceb6 KW |
10217 | |
10218 | getinfo_super_imsm_volume(st, &info, NULL); | |
089f9d79 JS |
10219 | if (geo->level != info.array.level && geo->level >= 0 && |
10220 | geo->level != UnSet) { | |
471bceb6 KW |
10221 | switch (info.array.level) { |
10222 | case 0: | |
10223 | if (geo->level == 5) { | |
b5347799 | 10224 | change = CH_MIGRATION; |
e13ce846 | 10225 | if (geo->layout != ALGORITHM_LEFT_ASYMMETRIC) { |
7a862a02 | 10226 | pr_err("Error. Requested Layout not supported (left-asymmetric layout is supported only)!\n"); |
e13ce846 AK |
10227 | change = -1; |
10228 | goto analyse_change_exit; | |
10229 | } | |
67a2db32 | 10230 | imsm_layout = geo->layout; |
471bceb6 | 10231 | check_devs = 1; |
e91a3bad LM |
10232 | devNumChange = 1; /* parity disk added */ |
10233 | } else if (geo->level == 10) { | |
471bceb6 KW |
10234 | change = CH_TAKEOVER; |
10235 | check_devs = 1; | |
e91a3bad | 10236 | devNumChange = 2; /* two mirrors added */ |
67a2db32 | 10237 | imsm_layout = 0x102; /* imsm supported layout */ |
471bceb6 | 10238 | } |
dfe77a9e KW |
10239 | break; |
10240 | case 1: | |
471bceb6 KW |
10241 | case 10: |
10242 | if (geo->level == 0) { | |
10243 | change = CH_TAKEOVER; | |
10244 | check_devs = 1; | |
e91a3bad | 10245 | devNumChange = -(geo->raid_disks/2); |
67a2db32 | 10246 | imsm_layout = 0; /* imsm raid0 layout */ |
471bceb6 KW |
10247 | } |
10248 | break; | |
10249 | } | |
10250 | if (change == -1) { | |
7a862a02 | 10251 | pr_err("Error. Level Migration from %d to %d not supported!\n", |
e7b84f9d | 10252 | info.array.level, geo->level); |
471bceb6 KW |
10253 | goto analyse_change_exit; |
10254 | } | |
10255 | } else | |
10256 | geo->level = info.array.level; | |
10257 | ||
089f9d79 JS |
10258 | if (geo->layout != info.array.layout && |
10259 | (geo->layout != UnSet && geo->layout != -1)) { | |
b5347799 | 10260 | change = CH_MIGRATION; |
089f9d79 JS |
10261 | if (info.array.layout == 0 && info.array.level == 5 && |
10262 | geo->layout == 5) { | |
471bceb6 | 10263 | /* reshape 5 -> 4 */ |
089f9d79 JS |
10264 | } else if (info.array.layout == 5 && info.array.level == 5 && |
10265 | geo->layout == 0) { | |
471bceb6 KW |
10266 | /* reshape 4 -> 5 */ |
10267 | geo->layout = 0; | |
10268 | geo->level = 5; | |
10269 | } else { | |
7a862a02 | 10270 | pr_err("Error. Layout Migration from %d to %d not supported!\n", |
e7b84f9d | 10271 | info.array.layout, geo->layout); |
471bceb6 KW |
10272 | change = -1; |
10273 | goto analyse_change_exit; | |
10274 | } | |
67a2db32 | 10275 | } else { |
471bceb6 | 10276 | geo->layout = info.array.layout; |
67a2db32 AK |
10277 | if (imsm_layout == -1) |
10278 | imsm_layout = info.array.layout; | |
10279 | } | |
471bceb6 | 10280 | |
089f9d79 JS |
10281 | if (geo->chunksize > 0 && geo->chunksize != UnSet && |
10282 | geo->chunksize != info.array.chunk_size) { | |
2d2b0eb7 MD |
10283 | if (info.array.level == 10) { |
10284 | pr_err("Error. Chunk size change for RAID 10 is not supported.\n"); | |
10285 | change = -1; | |
10286 | goto analyse_change_exit; | |
10287 | } | |
b5347799 | 10288 | change = CH_MIGRATION; |
2d2b0eb7 | 10289 | } else { |
471bceb6 | 10290 | geo->chunksize = info.array.chunk_size; |
2d2b0eb7 | 10291 | } |
471bceb6 | 10292 | |
c21e737b | 10293 | chunk = geo->chunksize / 1024; |
7abc9871 AK |
10294 | |
10295 | super = st->sb; | |
10296 | dev = get_imsm_dev(super, super->current_vol); | |
10297 | data_disks = imsm_num_data_members(dev , MAP_0); | |
c41e00b2 | 10298 | /* compute current size per disk member |
7abc9871 | 10299 | */ |
c41e00b2 AK |
10300 | current_size = info.custom_array_size / data_disks; |
10301 | ||
089f9d79 | 10302 | if (geo->size > 0 && geo->size != MAX_SIZE) { |
c41e00b2 AK |
10303 | /* align component size |
10304 | */ | |
10305 | geo->size = imsm_component_size_aligment_check( | |
10306 | get_imsm_raid_level(dev->vol.map), | |
f36a9ecd | 10307 | chunk * 1024, super->sector_size, |
c41e00b2 | 10308 | geo->size * 2); |
65d0b4ce | 10309 | if (geo->size == 0) { |
7a862a02 | 10310 | pr_err("Error. Size expansion is supported only (current size is %llu, requested size /rounded/ is 0).\n", |
65d0b4ce LD |
10311 | current_size); |
10312 | goto analyse_change_exit; | |
10313 | } | |
c41e00b2 | 10314 | } |
7abc9871 | 10315 | |
089f9d79 | 10316 | if (current_size != geo->size && geo->size > 0) { |
7abc9871 | 10317 | if (change != -1) { |
7a862a02 | 10318 | pr_err("Error. Size change should be the only one at a time.\n"); |
7abc9871 AK |
10319 | change = -1; |
10320 | goto analyse_change_exit; | |
10321 | } | |
10322 | if ((super->current_vol + 1) != super->anchor->num_raid_devs) { | |
7a862a02 | 10323 | pr_err("Error. The last volume in container can be expanded only (%i/%s).\n", |
4dd2df09 | 10324 | super->current_vol, st->devnm); |
7abc9871 AK |
10325 | goto analyse_change_exit; |
10326 | } | |
65d38cca LD |
10327 | /* check the maximum available size |
10328 | */ | |
10329 | rv = imsm_get_free_size(st, dev->vol.map->num_members, | |
10330 | 0, chunk, &free_size); | |
10331 | if (rv == 0) | |
10332 | /* Cannot find maximum available space | |
10333 | */ | |
10334 | max_size = 0; | |
10335 | else { | |
10336 | max_size = free_size + current_size; | |
10337 | /* align component size | |
10338 | */ | |
10339 | max_size = imsm_component_size_aligment_check( | |
10340 | get_imsm_raid_level(dev->vol.map), | |
f36a9ecd | 10341 | chunk * 1024, super->sector_size, |
65d38cca LD |
10342 | max_size); |
10343 | } | |
d04f65f4 | 10344 | if (geo->size == MAX_SIZE) { |
b130333f AK |
10345 | /* requested size change to the maximum available size |
10346 | */ | |
65d38cca | 10347 | if (max_size == 0) { |
7a862a02 | 10348 | pr_err("Error. Cannot find maximum available space.\n"); |
b130333f AK |
10349 | change = -1; |
10350 | goto analyse_change_exit; | |
65d38cca LD |
10351 | } else |
10352 | geo->size = max_size; | |
c41e00b2 | 10353 | } |
b130333f | 10354 | |
681b7ae2 | 10355 | if (direction == ROLLBACK_METADATA_CHANGES) { |
fbf3d202 AK |
10356 | /* accept size for rollback only |
10357 | */ | |
10358 | } else { | |
10359 | /* round size due to metadata compatibility | |
10360 | */ | |
10361 | geo->size = (geo->size >> SECT_PER_MB_SHIFT) | |
10362 | << SECT_PER_MB_SHIFT; | |
10363 | dprintf("Prepare update for size change to %llu\n", | |
10364 | geo->size ); | |
10365 | if (current_size >= geo->size) { | |
7a862a02 | 10366 | pr_err("Error. Size expansion is supported only (current size is %llu, requested size /rounded/ is %llu).\n", |
e7b84f9d | 10367 | current_size, geo->size); |
fbf3d202 AK |
10368 | goto analyse_change_exit; |
10369 | } | |
65d38cca | 10370 | if (max_size && geo->size > max_size) { |
7a862a02 | 10371 | pr_err("Error. Requested size is larger than maximum available size (maximum available size is %llu, requested size /rounded/ is %llu).\n", |
e7b84f9d | 10372 | max_size, geo->size); |
65d38cca LD |
10373 | goto analyse_change_exit; |
10374 | } | |
7abc9871 AK |
10375 | } |
10376 | geo->size *= data_disks; | |
10377 | geo->raid_disks = dev->vol.map->num_members; | |
10378 | change = CH_ARRAY_SIZE; | |
10379 | } | |
471bceb6 KW |
10380 | if (!validate_geometry_imsm(st, |
10381 | geo->level, | |
67a2db32 | 10382 | imsm_layout, |
e91a3bad | 10383 | geo->raid_disks + devNumChange, |
c21e737b | 10384 | &chunk, |
af4348dd | 10385 | geo->size, INVALID_SECTORS, |
471bceb6 KW |
10386 | 0, 0, 1)) |
10387 | change = -1; | |
10388 | ||
10389 | if (check_devs) { | |
10390 | struct intel_super *super = st->sb; | |
10391 | struct imsm_super *mpb = super->anchor; | |
10392 | ||
10393 | if (mpb->num_raid_devs > 1) { | |
7a862a02 | 10394 | pr_err("Error. Cannot perform operation on %s- for this operation it MUST be single array in container\n", |
e7b84f9d | 10395 | geo->dev_name); |
471bceb6 KW |
10396 | change = -1; |
10397 | } | |
10398 | } | |
10399 | ||
10400 | analyse_change_exit: | |
089f9d79 JS |
10401 | if (direction == ROLLBACK_METADATA_CHANGES && |
10402 | (change == CH_MIGRATION || change == CH_TAKEOVER)) { | |
7a862a02 | 10403 | dprintf("imsm: Metadata changes rollback is not supported for migration and takeover operations.\n"); |
fbf3d202 AK |
10404 | change = -1; |
10405 | } | |
471bceb6 | 10406 | return change; |
694575e7 KW |
10407 | } |
10408 | ||
bb025c2f KW |
10409 | int imsm_takeover(struct supertype *st, struct geo_params *geo) |
10410 | { | |
10411 | struct intel_super *super = st->sb; | |
10412 | struct imsm_update_takeover *u; | |
10413 | ||
503975b9 | 10414 | u = xmalloc(sizeof(struct imsm_update_takeover)); |
bb025c2f KW |
10415 | |
10416 | u->type = update_takeover; | |
10417 | u->subarray = super->current_vol; | |
10418 | ||
10419 | /* 10->0 transition */ | |
10420 | if (geo->level == 0) | |
10421 | u->direction = R10_TO_R0; | |
10422 | ||
0529c688 KW |
10423 | /* 0->10 transition */ |
10424 | if (geo->level == 10) | |
10425 | u->direction = R0_TO_R10; | |
10426 | ||
bb025c2f KW |
10427 | /* update metadata locally */ |
10428 | imsm_update_metadata_locally(st, u, | |
10429 | sizeof(struct imsm_update_takeover)); | |
10430 | /* and possibly remotely */ | |
10431 | if (st->update_tail) | |
10432 | append_metadata_update(st, u, | |
10433 | sizeof(struct imsm_update_takeover)); | |
10434 | else | |
10435 | free(u); | |
10436 | ||
10437 | return 0; | |
10438 | } | |
10439 | ||
d04f65f4 N |
10440 | static int imsm_reshape_super(struct supertype *st, unsigned long long size, |
10441 | int level, | |
78b10e66 | 10442 | int layout, int chunksize, int raid_disks, |
41784c88 | 10443 | int delta_disks, char *backup, char *dev, |
016e00f5 | 10444 | int direction, int verbose) |
78b10e66 | 10445 | { |
78b10e66 N |
10446 | int ret_val = 1; |
10447 | struct geo_params geo; | |
10448 | ||
1ade5cc1 | 10449 | dprintf("(enter)\n"); |
78b10e66 | 10450 | |
71204a50 | 10451 | memset(&geo, 0, sizeof(struct geo_params)); |
78b10e66 N |
10452 | |
10453 | geo.dev_name = dev; | |
4dd2df09 | 10454 | strcpy(geo.devnm, st->devnm); |
78b10e66 N |
10455 | geo.size = size; |
10456 | geo.level = level; | |
10457 | geo.layout = layout; | |
10458 | geo.chunksize = chunksize; | |
10459 | geo.raid_disks = raid_disks; | |
41784c88 AK |
10460 | if (delta_disks != UnSet) |
10461 | geo.raid_disks += delta_disks; | |
78b10e66 | 10462 | |
1ade5cc1 N |
10463 | dprintf("for level : %i\n", geo.level); |
10464 | dprintf("for raid_disks : %i\n", geo.raid_disks); | |
78b10e66 N |
10465 | |
10466 | if (experimental() == 0) | |
10467 | return ret_val; | |
10468 | ||
4dd2df09 | 10469 | if (strcmp(st->container_devnm, st->devnm) == 0) { |
694575e7 KW |
10470 | /* On container level we can only increase number of devices. */ |
10471 | dprintf("imsm: info: Container operation\n"); | |
78b10e66 | 10472 | int old_raid_disks = 0; |
6dc0be30 | 10473 | |
78b10e66 | 10474 | if (imsm_reshape_is_allowed_on_container( |
fbf3d202 | 10475 | st, &geo, &old_raid_disks, direction)) { |
78b10e66 N |
10476 | struct imsm_update_reshape *u = NULL; |
10477 | int len; | |
10478 | ||
10479 | len = imsm_create_metadata_update_for_reshape( | |
10480 | st, &geo, old_raid_disks, &u); | |
10481 | ||
ed08d51c AK |
10482 | if (len <= 0) { |
10483 | dprintf("imsm: Cannot prepare update\n"); | |
10484 | goto exit_imsm_reshape_super; | |
10485 | } | |
10486 | ||
8dd70bce AK |
10487 | ret_val = 0; |
10488 | /* update metadata locally */ | |
10489 | imsm_update_metadata_locally(st, u, len); | |
10490 | /* and possibly remotely */ | |
10491 | if (st->update_tail) | |
10492 | append_metadata_update(st, u, len); | |
10493 | else | |
ed08d51c | 10494 | free(u); |
8dd70bce | 10495 | |
694575e7 | 10496 | } else { |
7a862a02 | 10497 | pr_err("(imsm) Operation is not allowed on this container\n"); |
694575e7 KW |
10498 | } |
10499 | } else { | |
10500 | /* On volume level we support following operations | |
471bceb6 KW |
10501 | * - takeover: raid10 -> raid0; raid0 -> raid10 |
10502 | * - chunk size migration | |
10503 | * - migration: raid5 -> raid0; raid0 -> raid5 | |
10504 | */ | |
10505 | struct intel_super *super = st->sb; | |
10506 | struct intel_dev *dev = super->devlist; | |
4dd2df09 | 10507 | int change; |
694575e7 | 10508 | dprintf("imsm: info: Volume operation\n"); |
471bceb6 KW |
10509 | /* find requested device */ |
10510 | while (dev) { | |
1011e834 | 10511 | char *devnm = |
4dd2df09 N |
10512 | imsm_find_array_devnm_by_subdev( |
10513 | dev->index, st->container_devnm); | |
10514 | if (devnm && strcmp(devnm, geo.devnm) == 0) | |
471bceb6 KW |
10515 | break; |
10516 | dev = dev->next; | |
10517 | } | |
10518 | if (dev == NULL) { | |
4dd2df09 N |
10519 | pr_err("Cannot find %s (%s) subarray\n", |
10520 | geo.dev_name, geo.devnm); | |
471bceb6 KW |
10521 | goto exit_imsm_reshape_super; |
10522 | } | |
10523 | super->current_vol = dev->index; | |
fbf3d202 | 10524 | change = imsm_analyze_change(st, &geo, direction); |
694575e7 | 10525 | switch (change) { |
471bceb6 | 10526 | case CH_TAKEOVER: |
bb025c2f | 10527 | ret_val = imsm_takeover(st, &geo); |
694575e7 | 10528 | break; |
48c5303a PC |
10529 | case CH_MIGRATION: { |
10530 | struct imsm_update_reshape_migration *u = NULL; | |
10531 | int len = | |
10532 | imsm_create_metadata_update_for_migration( | |
10533 | st, &geo, &u); | |
10534 | if (len < 1) { | |
7a862a02 | 10535 | dprintf("imsm: Cannot prepare update\n"); |
48c5303a PC |
10536 | break; |
10537 | } | |
471bceb6 | 10538 | ret_val = 0; |
48c5303a PC |
10539 | /* update metadata locally */ |
10540 | imsm_update_metadata_locally(st, u, len); | |
10541 | /* and possibly remotely */ | |
10542 | if (st->update_tail) | |
10543 | append_metadata_update(st, u, len); | |
10544 | else | |
10545 | free(u); | |
10546 | } | |
10547 | break; | |
7abc9871 | 10548 | case CH_ARRAY_SIZE: { |
f3871fdc AK |
10549 | struct imsm_update_size_change *u = NULL; |
10550 | int len = | |
10551 | imsm_create_metadata_update_for_size_change( | |
10552 | st, &geo, &u); | |
10553 | if (len < 1) { | |
7a862a02 | 10554 | dprintf("imsm: Cannot prepare update\n"); |
f3871fdc AK |
10555 | break; |
10556 | } | |
10557 | ret_val = 0; | |
10558 | /* update metadata locally */ | |
10559 | imsm_update_metadata_locally(st, u, len); | |
10560 | /* and possibly remotely */ | |
10561 | if (st->update_tail) | |
10562 | append_metadata_update(st, u, len); | |
10563 | else | |
10564 | free(u); | |
7abc9871 AK |
10565 | } |
10566 | break; | |
471bceb6 KW |
10567 | default: |
10568 | ret_val = 1; | |
694575e7 | 10569 | } |
694575e7 | 10570 | } |
78b10e66 | 10571 | |
ed08d51c | 10572 | exit_imsm_reshape_super: |
78b10e66 N |
10573 | dprintf("imsm: reshape_super Exit code = %i\n", ret_val); |
10574 | return ret_val; | |
10575 | } | |
2cda7640 | 10576 | |
0febb20c AO |
10577 | #define COMPLETED_OK 0 |
10578 | #define COMPLETED_NONE 1 | |
10579 | #define COMPLETED_DELAYED 2 | |
10580 | ||
10581 | static int read_completed(int fd, unsigned long long *val) | |
10582 | { | |
10583 | int ret; | |
10584 | char buf[50]; | |
10585 | ||
10586 | ret = sysfs_fd_get_str(fd, buf, 50); | |
10587 | if (ret < 0) | |
10588 | return ret; | |
10589 | ||
10590 | ret = COMPLETED_OK; | |
10591 | if (strncmp(buf, "none", 4) == 0) { | |
10592 | ret = COMPLETED_NONE; | |
10593 | } else if (strncmp(buf, "delayed", 7) == 0) { | |
10594 | ret = COMPLETED_DELAYED; | |
10595 | } else { | |
10596 | char *ep; | |
10597 | *val = strtoull(buf, &ep, 0); | |
10598 | if (ep == buf || (*ep != 0 && *ep != '\n' && *ep != ' ')) | |
10599 | ret = -1; | |
10600 | } | |
10601 | return ret; | |
10602 | } | |
10603 | ||
eee67a47 AK |
10604 | /******************************************************************************* |
10605 | * Function: wait_for_reshape_imsm | |
10606 | * Description: Function writes new sync_max value and waits until | |
10607 | * reshape process reach new position | |
10608 | * Parameters: | |
10609 | * sra : general array info | |
eee67a47 AK |
10610 | * ndata : number of disks in new array's layout |
10611 | * Returns: | |
10612 | * 0 : success, | |
10613 | * 1 : there is no reshape in progress, | |
10614 | * -1 : fail | |
10615 | ******************************************************************************/ | |
ae9f01f8 | 10616 | int wait_for_reshape_imsm(struct mdinfo *sra, int ndata) |
eee67a47 | 10617 | { |
85ca499c | 10618 | int fd = sysfs_get_fd(sra, NULL, "sync_completed"); |
df2647fa | 10619 | int retry = 3; |
eee67a47 | 10620 | unsigned long long completed; |
ae9f01f8 AK |
10621 | /* to_complete : new sync_max position */ |
10622 | unsigned long long to_complete = sra->reshape_progress; | |
10623 | unsigned long long position_to_set = to_complete / ndata; | |
eee67a47 | 10624 | |
ae9f01f8 | 10625 | if (fd < 0) { |
1ade5cc1 | 10626 | dprintf("cannot open reshape_position\n"); |
eee67a47 | 10627 | return 1; |
ae9f01f8 | 10628 | } |
eee67a47 | 10629 | |
df2647fa PB |
10630 | do { |
10631 | if (sysfs_fd_get_ll(fd, &completed) < 0) { | |
10632 | if (!retry) { | |
10633 | dprintf("cannot read reshape_position (no reshape in progres)\n"); | |
10634 | close(fd); | |
10635 | return 1; | |
10636 | } | |
10637 | usleep(30000); | |
10638 | } else | |
10639 | break; | |
10640 | } while (retry--); | |
eee67a47 | 10641 | |
85ca499c | 10642 | if (completed > position_to_set) { |
1ade5cc1 | 10643 | dprintf("wrong next position to set %llu (%llu)\n", |
85ca499c | 10644 | to_complete, position_to_set); |
ae9f01f8 AK |
10645 | close(fd); |
10646 | return -1; | |
10647 | } | |
10648 | dprintf("Position set: %llu\n", position_to_set); | |
10649 | if (sysfs_set_num(sra, NULL, "sync_max", | |
10650 | position_to_set) != 0) { | |
1ade5cc1 | 10651 | dprintf("cannot set reshape position to %llu\n", |
ae9f01f8 AK |
10652 | position_to_set); |
10653 | close(fd); | |
10654 | return -1; | |
eee67a47 AK |
10655 | } |
10656 | ||
eee67a47 | 10657 | do { |
0febb20c | 10658 | int rc; |
eee67a47 | 10659 | char action[20]; |
5ff3a780 | 10660 | int timeout = 3000; |
0febb20c | 10661 | |
5ff3a780 | 10662 | sysfs_wait(fd, &timeout); |
a47e44fb AK |
10663 | if (sysfs_get_str(sra, NULL, "sync_action", |
10664 | action, 20) > 0 && | |
d7d3809a | 10665 | strncmp(action, "reshape", 7) != 0) { |
b2be2b62 AO |
10666 | if (strncmp(action, "idle", 4) == 0) |
10667 | break; | |
d7d3809a AP |
10668 | close(fd); |
10669 | return -1; | |
10670 | } | |
0febb20c AO |
10671 | |
10672 | rc = read_completed(fd, &completed); | |
10673 | if (rc < 0) { | |
1ade5cc1 | 10674 | dprintf("cannot read reshape_position (in loop)\n"); |
eee67a47 AK |
10675 | close(fd); |
10676 | return 1; | |
0febb20c AO |
10677 | } else if (rc == COMPLETED_NONE) |
10678 | break; | |
85ca499c | 10679 | } while (completed < position_to_set); |
b2be2b62 | 10680 | |
eee67a47 AK |
10681 | close(fd); |
10682 | return 0; | |
eee67a47 AK |
10683 | } |
10684 | ||
b915c95f AK |
10685 | /******************************************************************************* |
10686 | * Function: check_degradation_change | |
10687 | * Description: Check that array hasn't become failed. | |
10688 | * Parameters: | |
10689 | * info : for sysfs access | |
10690 | * sources : source disks descriptors | |
10691 | * degraded: previous degradation level | |
10692 | * Returns: | |
10693 | * degradation level | |
10694 | ******************************************************************************/ | |
10695 | int check_degradation_change(struct mdinfo *info, | |
10696 | int *sources, | |
10697 | int degraded) | |
10698 | { | |
10699 | unsigned long long new_degraded; | |
e1993023 LD |
10700 | int rv; |
10701 | ||
10702 | rv = sysfs_get_ll(info, NULL, "degraded", &new_degraded); | |
089f9d79 | 10703 | if (rv == -1 || (new_degraded != (unsigned long long)degraded)) { |
b915c95f AK |
10704 | /* check each device to ensure it is still working */ |
10705 | struct mdinfo *sd; | |
10706 | new_degraded = 0; | |
10707 | for (sd = info->devs ; sd ; sd = sd->next) { | |
10708 | if (sd->disk.state & (1<<MD_DISK_FAULTY)) | |
10709 | continue; | |
10710 | if (sd->disk.state & (1<<MD_DISK_SYNC)) { | |
cf52eff5 TM |
10711 | char sbuf[100]; |
10712 | ||
b915c95f | 10713 | if (sysfs_get_str(info, |
cf52eff5 | 10714 | sd, "state", sbuf, sizeof(sbuf)) < 0 || |
b915c95f AK |
10715 | strstr(sbuf, "faulty") || |
10716 | strstr(sbuf, "in_sync") == NULL) { | |
10717 | /* this device is dead */ | |
10718 | sd->disk.state = (1<<MD_DISK_FAULTY); | |
10719 | if (sd->disk.raid_disk >= 0 && | |
10720 | sources[sd->disk.raid_disk] >= 0) { | |
10721 | close(sources[ | |
10722 | sd->disk.raid_disk]); | |
10723 | sources[sd->disk.raid_disk] = | |
10724 | -1; | |
10725 | } | |
10726 | new_degraded++; | |
10727 | } | |
10728 | } | |
10729 | } | |
10730 | } | |
10731 | ||
10732 | return new_degraded; | |
10733 | } | |
10734 | ||
10f22854 AK |
10735 | /******************************************************************************* |
10736 | * Function: imsm_manage_reshape | |
10737 | * Description: Function finds array under reshape and it manages reshape | |
10738 | * process. It creates stripes backups (if required) and sets | |
942e1cdb | 10739 | * checkpoints. |
10f22854 AK |
10740 | * Parameters: |
10741 | * afd : Backup handle (nattive) - not used | |
10742 | * sra : general array info | |
10743 | * reshape : reshape parameters - not used | |
10744 | * st : supertype structure | |
10745 | * blocks : size of critical section [blocks] | |
10746 | * fds : table of source device descriptor | |
10747 | * offsets : start of array (offest per devices) | |
10748 | * dests : not used | |
10749 | * destfd : table of destination device descriptor | |
10750 | * destoffsets : table of destination offsets (per device) | |
10751 | * Returns: | |
10752 | * 1 : success, reshape is done | |
10753 | * 0 : fail | |
10754 | ******************************************************************************/ | |
999b4972 N |
10755 | static int imsm_manage_reshape( |
10756 | int afd, struct mdinfo *sra, struct reshape *reshape, | |
10f22854 | 10757 | struct supertype *st, unsigned long backup_blocks, |
999b4972 N |
10758 | int *fds, unsigned long long *offsets, |
10759 | int dests, int *destfd, unsigned long long *destoffsets) | |
10760 | { | |
10f22854 AK |
10761 | int ret_val = 0; |
10762 | struct intel_super *super = st->sb; | |
594dc1b8 | 10763 | struct intel_dev *dv; |
de44e46f | 10764 | unsigned int sector_size = super->sector_size; |
10f22854 | 10765 | struct imsm_dev *dev = NULL; |
a6b6d984 | 10766 | struct imsm_map *map_src; |
10f22854 AK |
10767 | int migr_vol_qan = 0; |
10768 | int ndata, odata; /* [bytes] */ | |
10769 | int chunk; /* [bytes] */ | |
10770 | struct migr_record *migr_rec; | |
10771 | char *buf = NULL; | |
10772 | unsigned int buf_size; /* [bytes] */ | |
10773 | unsigned long long max_position; /* array size [bytes] */ | |
10774 | unsigned long long next_step; /* [blocks]/[bytes] */ | |
10775 | unsigned long long old_data_stripe_length; | |
10f22854 AK |
10776 | unsigned long long start_src; /* [bytes] */ |
10777 | unsigned long long start; /* [bytes] */ | |
10778 | unsigned long long start_buf_shift; /* [bytes] */ | |
b915c95f | 10779 | int degraded = 0; |
ab724b98 | 10780 | int source_layout = 0; |
10f22854 | 10781 | |
79a16a9b JS |
10782 | if (!sra) |
10783 | return ret_val; | |
10784 | ||
10785 | if (!fds || !offsets) | |
10f22854 AK |
10786 | goto abort; |
10787 | ||
10788 | /* Find volume during the reshape */ | |
10789 | for (dv = super->devlist; dv; dv = dv->next) { | |
10790 | if (dv->dev->vol.migr_type == MIGR_GEN_MIGR | |
10791 | && dv->dev->vol.migr_state == 1) { | |
10792 | dev = dv->dev; | |
10793 | migr_vol_qan++; | |
10794 | } | |
10795 | } | |
10796 | /* Only one volume can migrate at the same time */ | |
10797 | if (migr_vol_qan != 1) { | |
676e87a8 | 10798 | pr_err("%s", migr_vol_qan ? |
10f22854 AK |
10799 | "Number of migrating volumes greater than 1\n" : |
10800 | "There is no volume during migrationg\n"); | |
10801 | goto abort; | |
10802 | } | |
10803 | ||
238c0a71 | 10804 | map_src = get_imsm_map(dev, MAP_1); |
10f22854 AK |
10805 | if (map_src == NULL) |
10806 | goto abort; | |
10f22854 | 10807 | |
238c0a71 AK |
10808 | ndata = imsm_num_data_members(dev, MAP_0); |
10809 | odata = imsm_num_data_members(dev, MAP_1); | |
10f22854 | 10810 | |
7b1ab482 | 10811 | chunk = __le16_to_cpu(map_src->blocks_per_strip) * 512; |
10f22854 AK |
10812 | old_data_stripe_length = odata * chunk; |
10813 | ||
10814 | migr_rec = super->migr_rec; | |
10815 | ||
10f22854 AK |
10816 | /* initialize migration record for start condition */ |
10817 | if (sra->reshape_progress == 0) | |
10818 | init_migr_record_imsm(st, dev, sra); | |
b2c59438 AK |
10819 | else { |
10820 | if (__le32_to_cpu(migr_rec->rec_status) != UNIT_SRC_NORMAL) { | |
7a862a02 | 10821 | dprintf("imsm: cannot restart migration when data are present in copy area.\n"); |
b2c59438 AK |
10822 | goto abort; |
10823 | } | |
6a75c8ca AK |
10824 | /* Save checkpoint to update migration record for current |
10825 | * reshape position (in md). It can be farther than current | |
10826 | * reshape position in metadata. | |
10827 | */ | |
10828 | if (save_checkpoint_imsm(st, sra, UNIT_SRC_NORMAL) == 1) { | |
10829 | /* ignore error == 2, this can mean end of reshape here | |
10830 | */ | |
7a862a02 | 10831 | dprintf("imsm: Cannot write checkpoint to migration record (UNIT_SRC_NORMAL, initial save)\n"); |
6a75c8ca AK |
10832 | goto abort; |
10833 | } | |
b2c59438 | 10834 | } |
10f22854 AK |
10835 | |
10836 | /* size for data */ | |
10837 | buf_size = __le32_to_cpu(migr_rec->blocks_per_unit) * 512; | |
10838 | /* extend buffer size for parity disk */ | |
10839 | buf_size += __le32_to_cpu(migr_rec->dest_depth_per_unit) * 512; | |
10840 | /* add space for stripe aligment */ | |
10841 | buf_size += old_data_stripe_length; | |
de44e46f PB |
10842 | if (posix_memalign((void **)&buf, MAX_SECTOR_SIZE, buf_size)) { |
10843 | dprintf("imsm: Cannot allocate checkpoint buffer\n"); | |
10f22854 AK |
10844 | goto abort; |
10845 | } | |
10846 | ||
3ef4403c | 10847 | max_position = sra->component_size * ndata; |
68eb8bc6 | 10848 | source_layout = imsm_level_to_layout(map_src->raid_level); |
10f22854 AK |
10849 | |
10850 | while (__le32_to_cpu(migr_rec->curr_migr_unit) < | |
10851 | __le32_to_cpu(migr_rec->num_migr_units)) { | |
10852 | /* current reshape position [blocks] */ | |
10853 | unsigned long long current_position = | |
10854 | __le32_to_cpu(migr_rec->blocks_per_unit) | |
10855 | * __le32_to_cpu(migr_rec->curr_migr_unit); | |
10856 | unsigned long long border; | |
10857 | ||
b915c95f AK |
10858 | /* Check that array hasn't become failed. |
10859 | */ | |
10860 | degraded = check_degradation_change(sra, fds, degraded); | |
10861 | if (degraded > 1) { | |
7a862a02 | 10862 | dprintf("imsm: Abort reshape due to degradation level (%i)\n", degraded); |
b915c95f AK |
10863 | goto abort; |
10864 | } | |
10865 | ||
10f22854 AK |
10866 | next_step = __le32_to_cpu(migr_rec->blocks_per_unit); |
10867 | ||
10868 | if ((current_position + next_step) > max_position) | |
10869 | next_step = max_position - current_position; | |
10870 | ||
92144abf | 10871 | start = current_position * 512; |
10f22854 | 10872 | |
942e1cdb | 10873 | /* align reading start to old geometry */ |
10f22854 AK |
10874 | start_buf_shift = start % old_data_stripe_length; |
10875 | start_src = start - start_buf_shift; | |
10876 | ||
10877 | border = (start_src / odata) - (start / ndata); | |
10878 | border /= 512; | |
10879 | if (border <= __le32_to_cpu(migr_rec->dest_depth_per_unit)) { | |
10880 | /* save critical stripes to buf | |
10881 | * start - start address of current unit | |
10882 | * to backup [bytes] | |
10883 | * start_src - start address of current unit | |
10884 | * to backup alligned to source array | |
10885 | * [bytes] | |
10886 | */ | |
594dc1b8 | 10887 | unsigned long long next_step_filler; |
10f22854 AK |
10888 | unsigned long long copy_length = next_step * 512; |
10889 | ||
10890 | /* allign copy area length to stripe in old geometry */ | |
10891 | next_step_filler = ((copy_length + start_buf_shift) | |
10892 | % old_data_stripe_length); | |
10893 | if (next_step_filler) | |
10894 | next_step_filler = (old_data_stripe_length | |
10895 | - next_step_filler); | |
7a862a02 | 10896 | dprintf("save_stripes() parameters: start = %llu,\tstart_src = %llu,\tnext_step*512 = %llu,\tstart_in_buf_shift = %llu,\tnext_step_filler = %llu\n", |
10f22854 AK |
10897 | start, start_src, copy_length, |
10898 | start_buf_shift, next_step_filler); | |
10899 | ||
10900 | if (save_stripes(fds, offsets, map_src->num_members, | |
ab724b98 AK |
10901 | chunk, map_src->raid_level, |
10902 | source_layout, 0, NULL, start_src, | |
10f22854 AK |
10903 | copy_length + |
10904 | next_step_filler + start_buf_shift, | |
10905 | buf)) { | |
7a862a02 | 10906 | dprintf("imsm: Cannot save stripes to buffer\n"); |
10f22854 AK |
10907 | goto abort; |
10908 | } | |
10909 | /* Convert data to destination format and store it | |
10910 | * in backup general migration area | |
10911 | */ | |
10912 | if (save_backup_imsm(st, dev, sra, | |
aea93171 | 10913 | buf + start_buf_shift, copy_length)) { |
7a862a02 | 10914 | dprintf("imsm: Cannot save stripes to target devices\n"); |
10f22854 AK |
10915 | goto abort; |
10916 | } | |
10917 | if (save_checkpoint_imsm(st, sra, | |
10918 | UNIT_SRC_IN_CP_AREA)) { | |
7a862a02 | 10919 | dprintf("imsm: Cannot write checkpoint to migration record (UNIT_SRC_IN_CP_AREA)\n"); |
10f22854 AK |
10920 | goto abort; |
10921 | } | |
8016a6d4 AK |
10922 | } else { |
10923 | /* set next step to use whole border area */ | |
10924 | border /= next_step; | |
10925 | if (border > 1) | |
10926 | next_step *= border; | |
10f22854 AK |
10927 | } |
10928 | /* When data backed up, checkpoint stored, | |
10929 | * kick the kernel to reshape unit of data | |
10930 | */ | |
10931 | next_step = next_step + sra->reshape_progress; | |
8016a6d4 AK |
10932 | /* limit next step to array max position */ |
10933 | if (next_step > max_position) | |
10934 | next_step = max_position; | |
10f22854 AK |
10935 | sysfs_set_num(sra, NULL, "suspend_lo", sra->reshape_progress); |
10936 | sysfs_set_num(sra, NULL, "suspend_hi", next_step); | |
ae9f01f8 | 10937 | sra->reshape_progress = next_step; |
10f22854 AK |
10938 | |
10939 | /* wait until reshape finish */ | |
c85338c6 | 10940 | if (wait_for_reshape_imsm(sra, ndata)) { |
c47b0ff6 AK |
10941 | dprintf("wait_for_reshape_imsm returned error!\n"); |
10942 | goto abort; | |
10943 | } | |
84d11e6c N |
10944 | if (sigterm) |
10945 | goto abort; | |
10f22854 | 10946 | |
0228d92c AK |
10947 | if (save_checkpoint_imsm(st, sra, UNIT_SRC_NORMAL) == 1) { |
10948 | /* ignore error == 2, this can mean end of reshape here | |
10949 | */ | |
7a862a02 | 10950 | dprintf("imsm: Cannot write checkpoint to migration record (UNIT_SRC_NORMAL)\n"); |
10f22854 AK |
10951 | goto abort; |
10952 | } | |
10953 | ||
10954 | } | |
10955 | ||
71e5411e PB |
10956 | /* clear migr_rec on disks after successful migration */ |
10957 | struct dl *d; | |
10958 | ||
de44e46f | 10959 | memset(super->migr_rec_buf, 0, MIGR_REC_BUF_SECTORS*sector_size); |
71e5411e PB |
10960 | for (d = super->disks; d; d = d->next) { |
10961 | if (d->index < 0 || is_failed(&d->disk)) | |
10962 | continue; | |
10963 | unsigned long long dsize; | |
10964 | ||
10965 | get_dev_size(d->fd, NULL, &dsize); | |
de44e46f | 10966 | if (lseek64(d->fd, dsize - MIGR_REC_SECTOR_POSITION*sector_size, |
71e5411e PB |
10967 | SEEK_SET) >= 0) { |
10968 | if (write(d->fd, super->migr_rec_buf, | |
de44e46f PB |
10969 | MIGR_REC_BUF_SECTORS*sector_size) != |
10970 | MIGR_REC_BUF_SECTORS*sector_size) | |
71e5411e PB |
10971 | perror("Write migr_rec failed"); |
10972 | } | |
10973 | } | |
10974 | ||
10f22854 AK |
10975 | /* return '1' if done */ |
10976 | ret_val = 1; | |
10977 | abort: | |
10978 | free(buf); | |
942e1cdb N |
10979 | /* See Grow.c: abort_reshape() for further explanation */ |
10980 | sysfs_set_num(sra, NULL, "suspend_lo", 0x7FFFFFFFFFFFFFFFULL); | |
10981 | sysfs_set_num(sra, NULL, "suspend_hi", 0); | |
10982 | sysfs_set_num(sra, NULL, "suspend_lo", 0); | |
10f22854 AK |
10983 | |
10984 | return ret_val; | |
999b4972 | 10985 | } |
0c21b485 | 10986 | |
71204a50 | 10987 | #endif /* MDASSEMBLE */ |
999b4972 | 10988 | |
cdddbdbc DW |
10989 | struct superswitch super_imsm = { |
10990 | #ifndef MDASSEMBLE | |
10991 | .examine_super = examine_super_imsm, | |
10992 | .brief_examine_super = brief_examine_super_imsm, | |
4737ae25 | 10993 | .brief_examine_subarrays = brief_examine_subarrays_imsm, |
9d84c8ea | 10994 | .export_examine_super = export_examine_super_imsm, |
cdddbdbc DW |
10995 | .detail_super = detail_super_imsm, |
10996 | .brief_detail_super = brief_detail_super_imsm, | |
bf5a934a | 10997 | .write_init_super = write_init_super_imsm, |
0e600426 N |
10998 | .validate_geometry = validate_geometry_imsm, |
10999 | .add_to_super = add_to_super_imsm, | |
1a64be56 | 11000 | .remove_from_super = remove_from_super_imsm, |
d665cc31 | 11001 | .detail_platform = detail_platform_imsm, |
e50cf220 | 11002 | .export_detail_platform = export_detail_platform_imsm, |
33414a01 | 11003 | .kill_subarray = kill_subarray_imsm, |
aa534678 | 11004 | .update_subarray = update_subarray_imsm, |
2b959fbf | 11005 | .load_container = load_container_imsm, |
71204a50 N |
11006 | .default_geometry = default_geometry_imsm, |
11007 | .get_disk_controller_domain = imsm_get_disk_controller_domain, | |
11008 | .reshape_super = imsm_reshape_super, | |
11009 | .manage_reshape = imsm_manage_reshape, | |
9e2d750d | 11010 | .recover_backup = recover_backup_imsm, |
74db60b0 | 11011 | .copy_metadata = copy_metadata_imsm, |
cdddbdbc DW |
11012 | #endif |
11013 | .match_home = match_home_imsm, | |
11014 | .uuid_from_super= uuid_from_super_imsm, | |
11015 | .getinfo_super = getinfo_super_imsm, | |
5c4cd5da | 11016 | .getinfo_super_disks = getinfo_super_disks_imsm, |
cdddbdbc DW |
11017 | .update_super = update_super_imsm, |
11018 | ||
11019 | .avail_size = avail_size_imsm, | |
80e7f8c3 | 11020 | .min_acceptable_spare_size = min_acceptable_spare_size_imsm, |
cdddbdbc DW |
11021 | |
11022 | .compare_super = compare_super_imsm, | |
11023 | ||
11024 | .load_super = load_super_imsm, | |
bf5a934a | 11025 | .init_super = init_super_imsm, |
e683ca88 | 11026 | .store_super = store_super_imsm, |
cdddbdbc DW |
11027 | .free_super = free_super_imsm, |
11028 | .match_metadata_desc = match_metadata_desc_imsm, | |
bf5a934a | 11029 | .container_content = container_content_imsm, |
0c21b485 | 11030 | .validate_container = validate_container_imsm, |
cdddbdbc | 11031 | |
cdddbdbc | 11032 | .external = 1, |
4cce4069 | 11033 | .name = "imsm", |
845dea95 | 11034 | |
0e600426 | 11035 | #ifndef MDASSEMBLE |
845dea95 NB |
11036 | /* for mdmon */ |
11037 | .open_new = imsm_open_new, | |
ed9d66aa | 11038 | .set_array_state= imsm_set_array_state, |
845dea95 NB |
11039 | .set_disk = imsm_set_disk, |
11040 | .sync_metadata = imsm_sync_metadata, | |
88758e9d | 11041 | .activate_spare = imsm_activate_spare, |
e8319a19 | 11042 | .process_update = imsm_process_update, |
8273f55e | 11043 | .prepare_update = imsm_prepare_update, |
0e600426 | 11044 | #endif /* MDASSEMBLE */ |
cdddbdbc | 11045 | }; |