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Commit | Line | Data |
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cdddbdbc DW |
1 | /* |
2 | * mdadm - Intel(R) Matrix Storage Manager Support | |
3 | * | |
a54d5262 | 4 | * Copyright (C) 2002-2008 Intel Corporation |
cdddbdbc DW |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify it | |
7 | * under the terms and conditions of the GNU General Public License, | |
8 | * version 2, as published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope it will be useful, but WITHOUT | |
11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
13 | * more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License along with | |
16 | * this program; if not, write to the Free Software Foundation, Inc., | |
17 | * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. | |
18 | */ | |
19 | ||
51006d85 | 20 | #define HAVE_STDINT_H 1 |
cdddbdbc | 21 | #include "mdadm.h" |
c2a1e7da | 22 | #include "mdmon.h" |
51006d85 | 23 | #include "sha1.h" |
88c32bb1 | 24 | #include "platform-intel.h" |
cdddbdbc DW |
25 | #include <values.h> |
26 | #include <scsi/sg.h> | |
27 | #include <ctype.h> | |
d665cc31 | 28 | #include <dirent.h> |
cdddbdbc DW |
29 | |
30 | /* MPB == Metadata Parameter Block */ | |
31 | #define MPB_SIGNATURE "Intel Raid ISM Cfg Sig. " | |
32 | #define MPB_SIG_LEN (strlen(MPB_SIGNATURE)) | |
33 | #define MPB_VERSION_RAID0 "1.0.00" | |
34 | #define MPB_VERSION_RAID1 "1.1.00" | |
fe7ed8cb DW |
35 | #define MPB_VERSION_MANY_VOLUMES_PER_ARRAY "1.2.00" |
36 | #define MPB_VERSION_3OR4_DISK_ARRAY "1.2.01" | |
cdddbdbc | 37 | #define MPB_VERSION_RAID5 "1.2.02" |
fe7ed8cb DW |
38 | #define MPB_VERSION_5OR6_DISK_ARRAY "1.2.04" |
39 | #define MPB_VERSION_CNG "1.2.06" | |
40 | #define MPB_VERSION_ATTRIBS "1.3.00" | |
cdddbdbc DW |
41 | #define MAX_SIGNATURE_LENGTH 32 |
42 | #define MAX_RAID_SERIAL_LEN 16 | |
fe7ed8cb | 43 | |
19482bcc AK |
44 | /* supports RAID0 */ |
45 | #define MPB_ATTRIB_RAID0 __cpu_to_le32(0x00000001) | |
46 | /* supports RAID1 */ | |
47 | #define MPB_ATTRIB_RAID1 __cpu_to_le32(0x00000002) | |
48 | /* supports RAID10 */ | |
49 | #define MPB_ATTRIB_RAID10 __cpu_to_le32(0x00000004) | |
50 | /* supports RAID1E */ | |
51 | #define MPB_ATTRIB_RAID1E __cpu_to_le32(0x00000008) | |
52 | /* supports RAID5 */ | |
53 | #define MPB_ATTRIB_RAID5 __cpu_to_le32(0x00000010) | |
54 | /* supports RAID CNG */ | |
55 | #define MPB_ATTRIB_RAIDCNG __cpu_to_le32(0x00000020) | |
56 | /* supports expanded stripe sizes of 256K, 512K and 1MB */ | |
57 | #define MPB_ATTRIB_EXP_STRIPE_SIZE __cpu_to_le32(0x00000040) | |
58 | ||
59 | /* The OROM Support RST Caching of Volumes */ | |
60 | #define MPB_ATTRIB_NVM __cpu_to_le32(0x02000000) | |
61 | /* The OROM supports creating disks greater than 2TB */ | |
62 | #define MPB_ATTRIB_2TB_DISK __cpu_to_le32(0x04000000) | |
63 | /* The OROM supports Bad Block Management */ | |
64 | #define MPB_ATTRIB_BBM __cpu_to_le32(0x08000000) | |
65 | ||
66 | /* THe OROM Supports NVM Caching of Volumes */ | |
67 | #define MPB_ATTRIB_NEVER_USE2 __cpu_to_le32(0x10000000) | |
68 | /* The OROM supports creating volumes greater than 2TB */ | |
69 | #define MPB_ATTRIB_2TB __cpu_to_le32(0x20000000) | |
70 | /* originally for PMP, now it's wasted b/c. Never use this bit! */ | |
71 | #define MPB_ATTRIB_NEVER_USE __cpu_to_le32(0x40000000) | |
72 | /* Verify MPB contents against checksum after reading MPB */ | |
73 | #define MPB_ATTRIB_CHECKSUM_VERIFY __cpu_to_le32(0x80000000) | |
74 | ||
75 | /* Define all supported attributes that have to be accepted by mdadm | |
76 | */ | |
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 | \ | |
bbab0940 TM |
84 | MPB_ATTRIB_EXP_STRIPE_SIZE | \ |
85 | MPB_ATTRIB_BBM) | |
418f9b36 N |
86 | |
87 | /* Define attributes that are unused but not harmful */ | |
88 | #define MPB_ATTRIB_IGNORED (MPB_ATTRIB_NEVER_USE) | |
fe7ed8cb | 89 | |
8e59f3d8 | 90 | #define MPB_SECTOR_CNT 2210 |
c2c087e6 | 91 | #define IMSM_RESERVED_SECTORS 4096 |
b81221b7 | 92 | #define NUM_BLOCKS_DIRTY_STRIPE_REGION 2056 |
979d38be | 93 | #define SECT_PER_MB_SHIFT 11 |
f36a9ecd | 94 | #define MAX_SECTOR_SIZE 4096 |
cdddbdbc DW |
95 | |
96 | /* Disk configuration info. */ | |
97 | #define IMSM_MAX_DEVICES 255 | |
98 | struct imsm_disk { | |
99 | __u8 serial[MAX_RAID_SERIAL_LEN];/* 0xD8 - 0xE7 ascii serial number */ | |
5551b113 | 100 | __u32 total_blocks_lo; /* 0xE8 - 0xEB total blocks lo */ |
cdddbdbc | 101 | __u32 scsi_id; /* 0xEC - 0xEF scsi ID */ |
f2f27e63 DW |
102 | #define SPARE_DISK __cpu_to_le32(0x01) /* Spare */ |
103 | #define CONFIGURED_DISK __cpu_to_le32(0x02) /* Member of some RaidDev */ | |
104 | #define FAILED_DISK __cpu_to_le32(0x04) /* Permanent failure */ | |
cdddbdbc | 105 | __u32 status; /* 0xF0 - 0xF3 */ |
1011e834 | 106 | __u32 owner_cfg_num; /* which config 0,1,2... owns this disk */ |
5551b113 CA |
107 | __u32 total_blocks_hi; /* 0xF4 - 0xF5 total blocks hi */ |
108 | #define IMSM_DISK_FILLERS 3 | |
109 | __u32 filler[IMSM_DISK_FILLERS]; /* 0xF5 - 0x107 MPB_DISK_FILLERS for future expansion */ | |
cdddbdbc DW |
110 | }; |
111 | ||
3b451610 AK |
112 | /* map selector for map managment |
113 | */ | |
238c0a71 AK |
114 | #define MAP_0 0 |
115 | #define MAP_1 1 | |
116 | #define MAP_X -1 | |
3b451610 | 117 | |
cdddbdbc DW |
118 | /* RAID map configuration infos. */ |
119 | struct imsm_map { | |
5551b113 CA |
120 | __u32 pba_of_lba0_lo; /* start address of partition */ |
121 | __u32 blocks_per_member_lo;/* blocks per member */ | |
122 | __u32 num_data_stripes_lo; /* number of data stripes */ | |
cdddbdbc DW |
123 | __u16 blocks_per_strip; |
124 | __u8 map_state; /* Normal, Uninitialized, Degraded, Failed */ | |
125 | #define IMSM_T_STATE_NORMAL 0 | |
126 | #define IMSM_T_STATE_UNINITIALIZED 1 | |
e3bba0e0 DW |
127 | #define IMSM_T_STATE_DEGRADED 2 |
128 | #define IMSM_T_STATE_FAILED 3 | |
cdddbdbc DW |
129 | __u8 raid_level; |
130 | #define IMSM_T_RAID0 0 | |
131 | #define IMSM_T_RAID1 1 | |
132 | #define IMSM_T_RAID5 5 /* since metadata version 1.2.02 ? */ | |
133 | __u8 num_members; /* number of member disks */ | |
fe7ed8cb DW |
134 | __u8 num_domains; /* number of parity domains */ |
135 | __u8 failed_disk_num; /* valid only when state is degraded */ | |
252d23c0 | 136 | __u8 ddf; |
5551b113 CA |
137 | __u32 pba_of_lba0_hi; |
138 | __u32 blocks_per_member_hi; | |
139 | __u32 num_data_stripes_hi; | |
140 | __u32 filler[4]; /* expansion area */ | |
7eef0453 | 141 | #define IMSM_ORD_REBUILD (1 << 24) |
cdddbdbc | 142 | __u32 disk_ord_tbl[1]; /* disk_ord_tbl[num_members], |
7eef0453 DW |
143 | * top byte contains some flags |
144 | */ | |
cdddbdbc DW |
145 | } __attribute__ ((packed)); |
146 | ||
147 | struct imsm_vol { | |
f8f603f1 | 148 | __u32 curr_migr_unit; |
fe7ed8cb | 149 | __u32 checkpoint_id; /* id to access curr_migr_unit */ |
cdddbdbc | 150 | __u8 migr_state; /* Normal or Migrating */ |
e3bba0e0 DW |
151 | #define MIGR_INIT 0 |
152 | #define MIGR_REBUILD 1 | |
153 | #define MIGR_VERIFY 2 /* analagous to echo check > sync_action */ | |
154 | #define MIGR_GEN_MIGR 3 | |
155 | #define MIGR_STATE_CHANGE 4 | |
1484e727 | 156 | #define MIGR_REPAIR 5 |
cdddbdbc DW |
157 | __u8 migr_type; /* Initializing, Rebuilding, ... */ |
158 | __u8 dirty; | |
fe7ed8cb DW |
159 | __u8 fs_state; /* fast-sync state for CnG (0xff == disabled) */ |
160 | __u16 verify_errors; /* number of mismatches */ | |
161 | __u16 bad_blocks; /* number of bad blocks during verify */ | |
162 | __u32 filler[4]; | |
cdddbdbc DW |
163 | struct imsm_map map[1]; |
164 | /* here comes another one if migr_state */ | |
165 | } __attribute__ ((packed)); | |
166 | ||
167 | struct imsm_dev { | |
fe7ed8cb | 168 | __u8 volume[MAX_RAID_SERIAL_LEN]; |
cdddbdbc DW |
169 | __u32 size_low; |
170 | __u32 size_high; | |
fe7ed8cb DW |
171 | #define DEV_BOOTABLE __cpu_to_le32(0x01) |
172 | #define DEV_BOOT_DEVICE __cpu_to_le32(0x02) | |
173 | #define DEV_READ_COALESCING __cpu_to_le32(0x04) | |
174 | #define DEV_WRITE_COALESCING __cpu_to_le32(0x08) | |
175 | #define DEV_LAST_SHUTDOWN_DIRTY __cpu_to_le32(0x10) | |
176 | #define DEV_HIDDEN_AT_BOOT __cpu_to_le32(0x20) | |
177 | #define DEV_CURRENTLY_HIDDEN __cpu_to_le32(0x40) | |
178 | #define DEV_VERIFY_AND_FIX __cpu_to_le32(0x80) | |
179 | #define DEV_MAP_STATE_UNINIT __cpu_to_le32(0x100) | |
180 | #define DEV_NO_AUTO_RECOVERY __cpu_to_le32(0x200) | |
181 | #define DEV_CLONE_N_GO __cpu_to_le32(0x400) | |
182 | #define DEV_CLONE_MAN_SYNC __cpu_to_le32(0x800) | |
183 | #define DEV_CNG_MASTER_DISK_NUM __cpu_to_le32(0x1000) | |
cdddbdbc DW |
184 | __u32 status; /* Persistent RaidDev status */ |
185 | __u32 reserved_blocks; /* Reserved blocks at beginning of volume */ | |
fe7ed8cb DW |
186 | __u8 migr_priority; |
187 | __u8 num_sub_vols; | |
188 | __u8 tid; | |
189 | __u8 cng_master_disk; | |
190 | __u16 cache_policy; | |
191 | __u8 cng_state; | |
192 | __u8 cng_sub_state; | |
193 | #define IMSM_DEV_FILLERS 10 | |
cdddbdbc DW |
194 | __u32 filler[IMSM_DEV_FILLERS]; |
195 | struct imsm_vol vol; | |
196 | } __attribute__ ((packed)); | |
197 | ||
198 | struct imsm_super { | |
199 | __u8 sig[MAX_SIGNATURE_LENGTH]; /* 0x00 - 0x1F */ | |
200 | __u32 check_sum; /* 0x20 - 0x23 MPB Checksum */ | |
201 | __u32 mpb_size; /* 0x24 - 0x27 Size of MPB */ | |
202 | __u32 family_num; /* 0x28 - 0x2B Checksum from first time this config was written */ | |
203 | __u32 generation_num; /* 0x2C - 0x2F Incremented each time this array's MPB is written */ | |
604b746f JD |
204 | __u32 error_log_size; /* 0x30 - 0x33 in bytes */ |
205 | __u32 attributes; /* 0x34 - 0x37 */ | |
cdddbdbc DW |
206 | __u8 num_disks; /* 0x38 Number of configured disks */ |
207 | __u8 num_raid_devs; /* 0x39 Number of configured volumes */ | |
604b746f JD |
208 | __u8 error_log_pos; /* 0x3A */ |
209 | __u8 fill[1]; /* 0x3B */ | |
210 | __u32 cache_size; /* 0x3c - 0x40 in mb */ | |
211 | __u32 orig_family_num; /* 0x40 - 0x43 original family num */ | |
212 | __u32 pwr_cycle_count; /* 0x44 - 0x47 simulated power cycle count for array */ | |
213 | __u32 bbm_log_size; /* 0x48 - 0x4B - size of bad Block Mgmt Log in bytes */ | |
214 | #define IMSM_FILLERS 35 | |
215 | __u32 filler[IMSM_FILLERS]; /* 0x4C - 0xD7 RAID_MPB_FILLERS */ | |
cdddbdbc DW |
216 | struct imsm_disk disk[1]; /* 0xD8 diskTbl[numDisks] */ |
217 | /* here comes imsm_dev[num_raid_devs] */ | |
604b746f | 218 | /* here comes BBM logs */ |
cdddbdbc DW |
219 | } __attribute__ ((packed)); |
220 | ||
604b746f | 221 | #define BBM_LOG_MAX_ENTRIES 254 |
8d67477f TM |
222 | #define BBM_LOG_MAX_LBA_ENTRY_VAL 256 /* Represents 256 LBAs */ |
223 | #define BBM_LOG_SIGNATURE 0xabadb10c | |
224 | ||
225 | struct bbm_log_block_addr { | |
226 | __u16 w1; | |
227 | __u32 dw1; | |
228 | } __attribute__ ((__packed__)); | |
604b746f JD |
229 | |
230 | struct bbm_log_entry { | |
8d67477f TM |
231 | __u8 marked_count; /* Number of blocks marked - 1 */ |
232 | __u8 disk_ordinal; /* Disk entry within the imsm_super */ | |
233 | struct bbm_log_block_addr defective_block_start; | |
604b746f JD |
234 | } __attribute__ ((__packed__)); |
235 | ||
236 | struct bbm_log { | |
237 | __u32 signature; /* 0xABADB10C */ | |
238 | __u32 entry_count; | |
8d67477f | 239 | struct bbm_log_entry marked_block_entries[BBM_LOG_MAX_ENTRIES]; |
604b746f JD |
240 | } __attribute__ ((__packed__)); |
241 | ||
cdddbdbc DW |
242 | #ifndef MDASSEMBLE |
243 | static char *map_state_str[] = { "normal", "uninitialized", "degraded", "failed" }; | |
244 | #endif | |
245 | ||
8e59f3d8 AK |
246 | #define RAID_DISK_RESERVED_BLOCKS_IMSM_HI 2209 |
247 | ||
248 | #define GEN_MIGR_AREA_SIZE 2048 /* General Migration Copy Area size in blocks */ | |
249 | ||
de44e46f PB |
250 | #define MIGR_REC_BUF_SECTORS 1 /* size of migr_record i/o buffer in sectors */ |
251 | #define MIGR_REC_SECTOR_POSITION 1 /* migr_record position offset on disk, | |
252 | * MIGR_REC_BUF_SECTORS <= MIGR_REC_SECTOR_POS | |
17a4eaf9 AK |
253 | */ |
254 | ||
8e59f3d8 AK |
255 | #define UNIT_SRC_NORMAL 0 /* Source data for curr_migr_unit must |
256 | * be recovered using srcMap */ | |
257 | #define UNIT_SRC_IN_CP_AREA 1 /* Source data for curr_migr_unit has | |
258 | * already been migrated and must | |
259 | * be recovered from checkpoint area */ | |
260 | struct migr_record { | |
261 | __u32 rec_status; /* Status used to determine how to restart | |
262 | * migration in case it aborts | |
263 | * in some fashion */ | |
264 | __u32 curr_migr_unit; /* 0..numMigrUnits-1 */ | |
265 | __u32 family_num; /* Family number of MPB | |
266 | * containing the RaidDev | |
267 | * that is migrating */ | |
268 | __u32 ascending_migr; /* True if migrating in increasing | |
269 | * order of lbas */ | |
270 | __u32 blocks_per_unit; /* Num disk blocks per unit of operation */ | |
271 | __u32 dest_depth_per_unit; /* Num member blocks each destMap | |
272 | * member disk | |
273 | * advances per unit-of-operation */ | |
274 | __u32 ckpt_area_pba; /* Pba of first block of ckpt copy area */ | |
275 | __u32 dest_1st_member_lba; /* First member lba on first | |
276 | * stripe of destination */ | |
277 | __u32 num_migr_units; /* Total num migration units-of-op */ | |
278 | __u32 post_migr_vol_cap; /* Size of volume after | |
279 | * migration completes */ | |
280 | __u32 post_migr_vol_cap_hi; /* Expansion space for LBA64 */ | |
281 | __u32 ckpt_read_disk_num; /* Which member disk in destSubMap[0] the | |
282 | * migration ckpt record was read from | |
283 | * (for recovered migrations) */ | |
284 | } __attribute__ ((__packed__)); | |
285 | ||
ec50f7b6 LM |
286 | struct md_list { |
287 | /* usage marker: | |
288 | * 1: load metadata | |
289 | * 2: metadata does not match | |
290 | * 4: already checked | |
291 | */ | |
292 | int used; | |
293 | char *devname; | |
294 | int found; | |
295 | int container; | |
296 | dev_t st_rdev; | |
297 | struct md_list *next; | |
298 | }; | |
299 | ||
e7b84f9d | 300 | #define pr_vrb(fmt, arg...) (void) (verbose && pr_err(fmt, ##arg)) |
ec50f7b6 | 301 | |
1484e727 DW |
302 | static __u8 migr_type(struct imsm_dev *dev) |
303 | { | |
304 | if (dev->vol.migr_type == MIGR_VERIFY && | |
305 | dev->status & DEV_VERIFY_AND_FIX) | |
306 | return MIGR_REPAIR; | |
307 | else | |
308 | return dev->vol.migr_type; | |
309 | } | |
310 | ||
311 | static void set_migr_type(struct imsm_dev *dev, __u8 migr_type) | |
312 | { | |
313 | /* for compatibility with older oroms convert MIGR_REPAIR, into | |
314 | * MIGR_VERIFY w/ DEV_VERIFY_AND_FIX status | |
315 | */ | |
316 | if (migr_type == MIGR_REPAIR) { | |
317 | dev->vol.migr_type = MIGR_VERIFY; | |
318 | dev->status |= DEV_VERIFY_AND_FIX; | |
319 | } else { | |
320 | dev->vol.migr_type = migr_type; | |
321 | dev->status &= ~DEV_VERIFY_AND_FIX; | |
322 | } | |
323 | } | |
324 | ||
f36a9ecd | 325 | static unsigned int sector_count(__u32 bytes, unsigned int sector_size) |
cdddbdbc | 326 | { |
f36a9ecd | 327 | return ROUND_UP(bytes, sector_size) / sector_size; |
87eb16df | 328 | } |
cdddbdbc | 329 | |
f36a9ecd PB |
330 | static unsigned int mpb_sectors(struct imsm_super *mpb, |
331 | unsigned int sector_size) | |
87eb16df | 332 | { |
f36a9ecd | 333 | return sector_count(__le32_to_cpu(mpb->mpb_size), sector_size); |
cdddbdbc DW |
334 | } |
335 | ||
ba2de7ba DW |
336 | struct intel_dev { |
337 | struct imsm_dev *dev; | |
338 | struct intel_dev *next; | |
f21e18ca | 339 | unsigned index; |
ba2de7ba DW |
340 | }; |
341 | ||
88654014 LM |
342 | struct intel_hba { |
343 | enum sys_dev_type type; | |
344 | char *path; | |
345 | char *pci_id; | |
346 | struct intel_hba *next; | |
347 | }; | |
348 | ||
1a64be56 LM |
349 | enum action { |
350 | DISK_REMOVE = 1, | |
351 | DISK_ADD | |
352 | }; | |
cdddbdbc DW |
353 | /* internal representation of IMSM metadata */ |
354 | struct intel_super { | |
355 | union { | |
949c47a0 DW |
356 | void *buf; /* O_DIRECT buffer for reading/writing metadata */ |
357 | struct imsm_super *anchor; /* immovable parameters */ | |
cdddbdbc | 358 | }; |
8e59f3d8 AK |
359 | union { |
360 | void *migr_rec_buf; /* buffer for I/O operations */ | |
361 | struct migr_record *migr_rec; /* migration record */ | |
362 | }; | |
51d83f5d AK |
363 | int clean_migration_record_by_mdmon; /* when reshape is switched to next |
364 | array, it indicates that mdmon is allowed to clean migration | |
365 | record */ | |
949c47a0 | 366 | size_t len; /* size of the 'buf' allocation */ |
bbab0940 | 367 | size_t extra_space; /* extra space in 'buf' that is not used yet */ |
4d7b1503 DW |
368 | void *next_buf; /* for realloc'ing buf from the manager */ |
369 | size_t next_len; | |
c2c087e6 | 370 | int updates_pending; /* count of pending updates for mdmon */ |
bf5a934a | 371 | int current_vol; /* index of raid device undergoing creation */ |
5551b113 | 372 | unsigned long long create_offset; /* common start for 'current_vol' */ |
148acb7b | 373 | __u32 random; /* random data for seeding new family numbers */ |
ba2de7ba | 374 | struct intel_dev *devlist; |
fa7bb6f8 | 375 | unsigned int sector_size; /* sector size of used member drives */ |
cdddbdbc DW |
376 | struct dl { |
377 | struct dl *next; | |
378 | int index; | |
379 | __u8 serial[MAX_RAID_SERIAL_LEN]; | |
380 | int major, minor; | |
381 | char *devname; | |
b9f594fe | 382 | struct imsm_disk disk; |
cdddbdbc | 383 | int fd; |
0dcecb2e DW |
384 | int extent_cnt; |
385 | struct extent *e; /* for determining freespace @ create */ | |
efb30e7f | 386 | int raiddisk; /* slot to fill in autolayout */ |
1a64be56 | 387 | enum action action; |
ca0748fa | 388 | } *disks, *current_disk; |
1a64be56 LM |
389 | struct dl *disk_mgmt_list; /* list of disks to add/remove while mdmon |
390 | active */ | |
47ee5a45 | 391 | struct dl *missing; /* disks removed while we weren't looking */ |
43dad3d6 | 392 | struct bbm_log *bbm_log; |
88654014 | 393 | struct intel_hba *hba; /* device path of the raid controller for this metadata */ |
88c32bb1 | 394 | const struct imsm_orom *orom; /* platform firmware support */ |
a2b97981 DW |
395 | struct intel_super *next; /* (temp) list for disambiguating family_num */ |
396 | }; | |
397 | ||
398 | struct intel_disk { | |
399 | struct imsm_disk disk; | |
400 | #define IMSM_UNKNOWN_OWNER (-1) | |
401 | int owner; | |
402 | struct intel_disk *next; | |
cdddbdbc DW |
403 | }; |
404 | ||
c2c087e6 DW |
405 | struct extent { |
406 | unsigned long long start, size; | |
407 | }; | |
408 | ||
694575e7 KW |
409 | /* definitions of reshape process types */ |
410 | enum imsm_reshape_type { | |
411 | CH_TAKEOVER, | |
b5347799 | 412 | CH_MIGRATION, |
7abc9871 | 413 | CH_ARRAY_SIZE, |
694575e7 KW |
414 | }; |
415 | ||
88758e9d DW |
416 | /* definition of messages passed to imsm_process_update */ |
417 | enum imsm_update_type { | |
418 | update_activate_spare, | |
8273f55e | 419 | update_create_array, |
33414a01 | 420 | update_kill_array, |
aa534678 | 421 | update_rename_array, |
1a64be56 | 422 | update_add_remove_disk, |
78b10e66 | 423 | update_reshape_container_disks, |
48c5303a | 424 | update_reshape_migration, |
2d40f3a1 AK |
425 | update_takeover, |
426 | update_general_migration_checkpoint, | |
f3871fdc | 427 | update_size_change, |
bbab0940 | 428 | update_prealloc_badblocks_mem, |
88758e9d DW |
429 | }; |
430 | ||
431 | struct imsm_update_activate_spare { | |
432 | enum imsm_update_type type; | |
d23fe947 | 433 | struct dl *dl; |
88758e9d DW |
434 | int slot; |
435 | int array; | |
436 | struct imsm_update_activate_spare *next; | |
437 | }; | |
438 | ||
78b10e66 | 439 | struct geo_params { |
4dd2df09 | 440 | char devnm[32]; |
78b10e66 | 441 | char *dev_name; |
d04f65f4 | 442 | unsigned long long size; |
78b10e66 N |
443 | int level; |
444 | int layout; | |
445 | int chunksize; | |
446 | int raid_disks; | |
447 | }; | |
448 | ||
bb025c2f KW |
449 | enum takeover_direction { |
450 | R10_TO_R0, | |
451 | R0_TO_R10 | |
452 | }; | |
453 | struct imsm_update_takeover { | |
454 | enum imsm_update_type type; | |
455 | int subarray; | |
456 | enum takeover_direction direction; | |
457 | }; | |
78b10e66 N |
458 | |
459 | struct imsm_update_reshape { | |
460 | enum imsm_update_type type; | |
461 | int old_raid_disks; | |
462 | int new_raid_disks; | |
48c5303a PC |
463 | |
464 | int new_disks[1]; /* new_raid_disks - old_raid_disks makedev number */ | |
465 | }; | |
466 | ||
467 | struct imsm_update_reshape_migration { | |
468 | enum imsm_update_type type; | |
469 | int old_raid_disks; | |
470 | int new_raid_disks; | |
471 | /* fields for array migration changes | |
472 | */ | |
473 | int subdev; | |
474 | int new_level; | |
475 | int new_layout; | |
4bba0439 | 476 | int new_chunksize; |
48c5303a | 477 | |
d195167d | 478 | int new_disks[1]; /* new_raid_disks - old_raid_disks makedev number */ |
78b10e66 N |
479 | }; |
480 | ||
f3871fdc AK |
481 | struct imsm_update_size_change { |
482 | enum imsm_update_type type; | |
483 | int subdev; | |
484 | long long new_size; | |
485 | }; | |
486 | ||
2d40f3a1 AK |
487 | struct imsm_update_general_migration_checkpoint { |
488 | enum imsm_update_type type; | |
489 | __u32 curr_migr_unit; | |
490 | }; | |
491 | ||
54c2c1ea DW |
492 | struct disk_info { |
493 | __u8 serial[MAX_RAID_SERIAL_LEN]; | |
494 | }; | |
495 | ||
8273f55e DW |
496 | struct imsm_update_create_array { |
497 | enum imsm_update_type type; | |
8273f55e | 498 | int dev_idx; |
6a3e913e | 499 | struct imsm_dev dev; |
8273f55e DW |
500 | }; |
501 | ||
33414a01 DW |
502 | struct imsm_update_kill_array { |
503 | enum imsm_update_type type; | |
504 | int dev_idx; | |
505 | }; | |
506 | ||
aa534678 DW |
507 | struct imsm_update_rename_array { |
508 | enum imsm_update_type type; | |
509 | __u8 name[MAX_RAID_SERIAL_LEN]; | |
510 | int dev_idx; | |
511 | }; | |
512 | ||
1a64be56 | 513 | struct imsm_update_add_remove_disk { |
43dad3d6 DW |
514 | enum imsm_update_type type; |
515 | }; | |
516 | ||
bbab0940 TM |
517 | struct imsm_update_prealloc_bb_mem { |
518 | enum imsm_update_type type; | |
519 | }; | |
520 | ||
88654014 LM |
521 | static const char *_sys_dev_type[] = { |
522 | [SYS_DEV_UNKNOWN] = "Unknown", | |
523 | [SYS_DEV_SAS] = "SAS", | |
614902f6 | 524 | [SYS_DEV_SATA] = "SATA", |
60f0f54d PB |
525 | [SYS_DEV_NVME] = "NVMe", |
526 | [SYS_DEV_VMD] = "VMD" | |
88654014 LM |
527 | }; |
528 | ||
529 | const char *get_sys_dev_type(enum sys_dev_type type) | |
530 | { | |
531 | if (type >= SYS_DEV_MAX) | |
532 | type = SYS_DEV_UNKNOWN; | |
533 | ||
534 | return _sys_dev_type[type]; | |
535 | } | |
536 | ||
537 | static struct intel_hba * alloc_intel_hba(struct sys_dev *device) | |
538 | { | |
503975b9 N |
539 | struct intel_hba *result = xmalloc(sizeof(*result)); |
540 | ||
541 | result->type = device->type; | |
542 | result->path = xstrdup(device->path); | |
543 | result->next = NULL; | |
544 | if (result->path && (result->pci_id = strrchr(result->path, '/')) != NULL) | |
545 | result->pci_id++; | |
546 | ||
88654014 LM |
547 | return result; |
548 | } | |
549 | ||
550 | static struct intel_hba * find_intel_hba(struct intel_hba *hba, struct sys_dev *device) | |
551 | { | |
594dc1b8 JS |
552 | struct intel_hba *result; |
553 | ||
88654014 LM |
554 | for (result = hba; result; result = result->next) { |
555 | if (result->type == device->type && strcmp(result->path, device->path) == 0) | |
556 | break; | |
557 | } | |
558 | return result; | |
559 | } | |
560 | ||
b4cf4cba | 561 | static int attach_hba_to_super(struct intel_super *super, struct sys_dev *device) |
88654014 LM |
562 | { |
563 | struct intel_hba *hba; | |
564 | ||
565 | /* check if disk attached to Intel HBA */ | |
566 | hba = find_intel_hba(super->hba, device); | |
567 | if (hba != NULL) | |
568 | return 1; | |
569 | /* Check if HBA is already attached to super */ | |
570 | if (super->hba == NULL) { | |
571 | super->hba = alloc_intel_hba(device); | |
572 | return 1; | |
6b781d33 AP |
573 | } |
574 | ||
575 | hba = super->hba; | |
576 | /* Intel metadata allows for all disks attached to the same type HBA. | |
614902f6 | 577 | * Do not support HBA types mixing |
6b781d33 AP |
578 | */ |
579 | if (device->type != hba->type) | |
88654014 | 580 | return 2; |
6b781d33 AP |
581 | |
582 | /* Multiple same type HBAs can be used if they share the same OROM */ | |
583 | const struct imsm_orom *device_orom = get_orom_by_device_id(device->dev_id); | |
584 | ||
585 | if (device_orom != super->orom) | |
586 | return 2; | |
587 | ||
588 | while (hba->next) | |
589 | hba = hba->next; | |
590 | ||
591 | hba->next = alloc_intel_hba(device); | |
592 | return 1; | |
88654014 LM |
593 | } |
594 | ||
595 | static struct sys_dev* find_disk_attached_hba(int fd, const char *devname) | |
596 | { | |
9bc4ae77 | 597 | struct sys_dev *list, *elem; |
88654014 LM |
598 | char *disk_path; |
599 | ||
600 | if ((list = find_intel_devices()) == NULL) | |
601 | return 0; | |
602 | ||
603 | if (fd < 0) | |
604 | disk_path = (char *) devname; | |
605 | else | |
606 | disk_path = diskfd_to_devpath(fd); | |
607 | ||
9bc4ae77 | 608 | if (!disk_path) |
88654014 | 609 | return 0; |
88654014 | 610 | |
9bc4ae77 N |
611 | for (elem = list; elem; elem = elem->next) |
612 | if (path_attached_to_hba(disk_path, elem->path)) | |
88654014 | 613 | return elem; |
9bc4ae77 | 614 | |
88654014 LM |
615 | if (disk_path != devname) |
616 | free(disk_path); | |
88654014 LM |
617 | |
618 | return NULL; | |
619 | } | |
620 | ||
d424212e N |
621 | static int find_intel_hba_capability(int fd, struct intel_super *super, |
622 | char *devname); | |
f2f5c343 | 623 | |
cdddbdbc DW |
624 | static struct supertype *match_metadata_desc_imsm(char *arg) |
625 | { | |
626 | struct supertype *st; | |
627 | ||
628 | if (strcmp(arg, "imsm") != 0 && | |
629 | strcmp(arg, "default") != 0 | |
630 | ) | |
631 | return NULL; | |
632 | ||
503975b9 | 633 | st = xcalloc(1, sizeof(*st)); |
cdddbdbc DW |
634 | st->ss = &super_imsm; |
635 | st->max_devs = IMSM_MAX_DEVICES; | |
636 | st->minor_version = 0; | |
637 | st->sb = NULL; | |
638 | return st; | |
639 | } | |
640 | ||
0e600426 | 641 | #ifndef MDASSEMBLE |
cdddbdbc DW |
642 | static __u8 *get_imsm_version(struct imsm_super *mpb) |
643 | { | |
644 | return &mpb->sig[MPB_SIG_LEN]; | |
645 | } | |
9e2d750d | 646 | #endif |
cdddbdbc | 647 | |
949c47a0 DW |
648 | /* retrieve a disk directly from the anchor when the anchor is known to be |
649 | * up-to-date, currently only at load time | |
650 | */ | |
651 | static struct imsm_disk *__get_imsm_disk(struct imsm_super *mpb, __u8 index) | |
cdddbdbc | 652 | { |
949c47a0 | 653 | if (index >= mpb->num_disks) |
cdddbdbc DW |
654 | return NULL; |
655 | return &mpb->disk[index]; | |
656 | } | |
657 | ||
95d07a2c LM |
658 | /* retrieve the disk description based on a index of the disk |
659 | * in the sub-array | |
660 | */ | |
661 | static struct dl *get_imsm_dl_disk(struct intel_super *super, __u8 index) | |
949c47a0 | 662 | { |
b9f594fe DW |
663 | struct dl *d; |
664 | ||
665 | for (d = super->disks; d; d = d->next) | |
666 | if (d->index == index) | |
95d07a2c LM |
667 | return d; |
668 | ||
669 | return NULL; | |
670 | } | |
671 | /* retrieve a disk from the parsed metadata */ | |
672 | static struct imsm_disk *get_imsm_disk(struct intel_super *super, __u8 index) | |
673 | { | |
674 | struct dl *dl; | |
675 | ||
676 | dl = get_imsm_dl_disk(super, index); | |
677 | if (dl) | |
678 | return &dl->disk; | |
679 | ||
b9f594fe | 680 | return NULL; |
949c47a0 DW |
681 | } |
682 | ||
683 | /* generate a checksum directly from the anchor when the anchor is known to be | |
684 | * up-to-date, currently only at load or write_super after coalescing | |
685 | */ | |
686 | static __u32 __gen_imsm_checksum(struct imsm_super *mpb) | |
cdddbdbc DW |
687 | { |
688 | __u32 end = mpb->mpb_size / sizeof(end); | |
689 | __u32 *p = (__u32 *) mpb; | |
690 | __u32 sum = 0; | |
691 | ||
5d500228 N |
692 | while (end--) { |
693 | sum += __le32_to_cpu(*p); | |
97f734fd N |
694 | p++; |
695 | } | |
cdddbdbc | 696 | |
5d500228 | 697 | return sum - __le32_to_cpu(mpb->check_sum); |
cdddbdbc DW |
698 | } |
699 | ||
a965f303 DW |
700 | static size_t sizeof_imsm_map(struct imsm_map *map) |
701 | { | |
702 | return sizeof(struct imsm_map) + sizeof(__u32) * (map->num_members - 1); | |
703 | } | |
704 | ||
705 | struct imsm_map *get_imsm_map(struct imsm_dev *dev, int second_map) | |
cdddbdbc | 706 | { |
5e7b0330 AK |
707 | /* A device can have 2 maps if it is in the middle of a migration. |
708 | * If second_map is: | |
238c0a71 AK |
709 | * MAP_0 - we return the first map |
710 | * MAP_1 - we return the second map if it exists, else NULL | |
711 | * MAP_X - we return the second map if it exists, else the first | |
5e7b0330 | 712 | */ |
a965f303 | 713 | struct imsm_map *map = &dev->vol.map[0]; |
9535fc47 | 714 | struct imsm_map *map2 = NULL; |
a965f303 | 715 | |
9535fc47 AK |
716 | if (dev->vol.migr_state) |
717 | map2 = (void *)map + sizeof_imsm_map(map); | |
a965f303 | 718 | |
9535fc47 | 719 | switch (second_map) { |
3b451610 | 720 | case MAP_0: |
9535fc47 | 721 | break; |
3b451610 | 722 | case MAP_1: |
9535fc47 AK |
723 | map = map2; |
724 | break; | |
238c0a71 | 725 | case MAP_X: |
9535fc47 AK |
726 | if (map2) |
727 | map = map2; | |
728 | break; | |
9535fc47 AK |
729 | default: |
730 | map = NULL; | |
731 | } | |
732 | return map; | |
5e7b0330 | 733 | |
a965f303 | 734 | } |
cdddbdbc | 735 | |
3393c6af DW |
736 | /* return the size of the device. |
737 | * migr_state increases the returned size if map[0] were to be duplicated | |
738 | */ | |
739 | static size_t sizeof_imsm_dev(struct imsm_dev *dev, int migr_state) | |
a965f303 DW |
740 | { |
741 | size_t size = sizeof(*dev) - sizeof(struct imsm_map) + | |
238c0a71 | 742 | sizeof_imsm_map(get_imsm_map(dev, MAP_0)); |
cdddbdbc DW |
743 | |
744 | /* migrating means an additional map */ | |
a965f303 | 745 | if (dev->vol.migr_state) |
238c0a71 | 746 | size += sizeof_imsm_map(get_imsm_map(dev, MAP_1)); |
3393c6af | 747 | else if (migr_state) |
238c0a71 | 748 | size += sizeof_imsm_map(get_imsm_map(dev, MAP_0)); |
cdddbdbc DW |
749 | |
750 | return size; | |
751 | } | |
752 | ||
54c2c1ea DW |
753 | #ifndef MDASSEMBLE |
754 | /* retrieve disk serial number list from a metadata update */ | |
755 | static struct disk_info *get_disk_info(struct imsm_update_create_array *update) | |
756 | { | |
757 | void *u = update; | |
758 | struct disk_info *inf; | |
759 | ||
760 | inf = u + sizeof(*update) - sizeof(struct imsm_dev) + | |
761 | sizeof_imsm_dev(&update->dev, 0); | |
762 | ||
763 | return inf; | |
764 | } | |
765 | #endif | |
766 | ||
949c47a0 | 767 | static struct imsm_dev *__get_imsm_dev(struct imsm_super *mpb, __u8 index) |
cdddbdbc DW |
768 | { |
769 | int offset; | |
770 | int i; | |
771 | void *_mpb = mpb; | |
772 | ||
949c47a0 | 773 | if (index >= mpb->num_raid_devs) |
cdddbdbc DW |
774 | return NULL; |
775 | ||
776 | /* devices start after all disks */ | |
777 | offset = ((void *) &mpb->disk[mpb->num_disks]) - _mpb; | |
778 | ||
779 | for (i = 0; i <= index; i++) | |
780 | if (i == index) | |
781 | return _mpb + offset; | |
782 | else | |
3393c6af | 783 | offset += sizeof_imsm_dev(_mpb + offset, 0); |
cdddbdbc DW |
784 | |
785 | return NULL; | |
786 | } | |
787 | ||
949c47a0 DW |
788 | static struct imsm_dev *get_imsm_dev(struct intel_super *super, __u8 index) |
789 | { | |
ba2de7ba DW |
790 | struct intel_dev *dv; |
791 | ||
949c47a0 DW |
792 | if (index >= super->anchor->num_raid_devs) |
793 | return NULL; | |
ba2de7ba DW |
794 | for (dv = super->devlist; dv; dv = dv->next) |
795 | if (dv->index == index) | |
796 | return dv->dev; | |
797 | return NULL; | |
949c47a0 DW |
798 | } |
799 | ||
8d67477f TM |
800 | static inline unsigned long long __le48_to_cpu(const struct bbm_log_block_addr |
801 | *addr) | |
802 | { | |
803 | return ((((__u64)__le32_to_cpu(addr->dw1)) << 16) | | |
804 | __le16_to_cpu(addr->w1)); | |
805 | } | |
806 | ||
807 | static inline struct bbm_log_block_addr __cpu_to_le48(unsigned long long sec) | |
808 | { | |
809 | struct bbm_log_block_addr addr; | |
810 | ||
811 | addr.w1 = __cpu_to_le16((__u16)(sec & 0xffff)); | |
812 | addr.dw1 = __cpu_to_le32((__u32)(sec >> 16) & 0xffffffff); | |
813 | return addr; | |
814 | } | |
815 | ||
816 | #ifndef MDASSEMBLE | |
817 | /* get size of the bbm log */ | |
818 | static __u32 get_imsm_bbm_log_size(struct bbm_log *log) | |
819 | { | |
820 | if (!log || log->entry_count == 0) | |
821 | return 0; | |
822 | ||
823 | return sizeof(log->signature) + | |
824 | sizeof(log->entry_count) + | |
825 | log->entry_count * sizeof(struct bbm_log_entry); | |
826 | } | |
6f50473f TM |
827 | |
828 | /* check if bad block is not partially stored in bbm log */ | |
829 | static int is_stored_in_bbm(struct bbm_log *log, const __u8 idx, const unsigned | |
830 | long long sector, const int length, __u32 *pos) | |
831 | { | |
832 | __u32 i; | |
833 | ||
834 | for (i = *pos; i < log->entry_count; i++) { | |
835 | struct bbm_log_entry *entry = &log->marked_block_entries[i]; | |
836 | unsigned long long bb_start; | |
837 | unsigned long long bb_end; | |
838 | ||
839 | bb_start = __le48_to_cpu(&entry->defective_block_start); | |
840 | bb_end = bb_start + (entry->marked_count + 1); | |
841 | ||
842 | if ((entry->disk_ordinal == idx) && (bb_start >= sector) && | |
843 | (bb_end <= sector + length)) { | |
844 | *pos = i; | |
845 | return 1; | |
846 | } | |
847 | } | |
848 | return 0; | |
849 | } | |
850 | ||
851 | /* record new bad block in bbm log */ | |
852 | static int record_new_badblock(struct bbm_log *log, const __u8 idx, unsigned | |
853 | long long sector, int length) | |
854 | { | |
855 | int new_bb = 0; | |
856 | __u32 pos = 0; | |
857 | struct bbm_log_entry *entry = NULL; | |
858 | ||
859 | while (is_stored_in_bbm(log, idx, sector, length, &pos)) { | |
860 | struct bbm_log_entry *e = &log->marked_block_entries[pos]; | |
861 | ||
862 | if ((e->marked_count + 1 == BBM_LOG_MAX_LBA_ENTRY_VAL) && | |
863 | (__le48_to_cpu(&e->defective_block_start) == sector)) { | |
864 | sector += BBM_LOG_MAX_LBA_ENTRY_VAL; | |
865 | length -= BBM_LOG_MAX_LBA_ENTRY_VAL; | |
866 | pos = pos + 1; | |
867 | continue; | |
868 | } | |
869 | entry = e; | |
870 | break; | |
871 | } | |
872 | ||
873 | if (entry) { | |
874 | int cnt = (length <= BBM_LOG_MAX_LBA_ENTRY_VAL) ? length : | |
875 | BBM_LOG_MAX_LBA_ENTRY_VAL; | |
876 | entry->defective_block_start = __cpu_to_le48(sector); | |
877 | entry->marked_count = cnt - 1; | |
878 | if (cnt == length) | |
879 | return 1; | |
880 | sector += cnt; | |
881 | length -= cnt; | |
882 | } | |
883 | ||
884 | new_bb = ROUND_UP(length, BBM_LOG_MAX_LBA_ENTRY_VAL) / | |
885 | BBM_LOG_MAX_LBA_ENTRY_VAL; | |
886 | if (log->entry_count + new_bb > BBM_LOG_MAX_ENTRIES) | |
887 | return 0; | |
888 | ||
889 | while (length > 0) { | |
890 | int cnt = (length <= BBM_LOG_MAX_LBA_ENTRY_VAL) ? length : | |
891 | BBM_LOG_MAX_LBA_ENTRY_VAL; | |
892 | struct bbm_log_entry *entry = | |
893 | &log->marked_block_entries[log->entry_count]; | |
894 | ||
895 | entry->defective_block_start = __cpu_to_le48(sector); | |
896 | entry->marked_count = cnt - 1; | |
897 | entry->disk_ordinal = idx; | |
898 | ||
899 | sector += cnt; | |
900 | length -= cnt; | |
901 | ||
902 | log->entry_count++; | |
903 | } | |
904 | ||
905 | return new_bb; | |
906 | } | |
8d67477f TM |
907 | #endif /* MDASSEMBLE */ |
908 | ||
909 | /* allocate and load BBM log from metadata */ | |
910 | static int load_bbm_log(struct intel_super *super) | |
911 | { | |
912 | struct imsm_super *mpb = super->anchor; | |
913 | __u32 bbm_log_size = __le32_to_cpu(mpb->bbm_log_size); | |
914 | ||
915 | super->bbm_log = xcalloc(1, sizeof(struct bbm_log)); | |
916 | if (!super->bbm_log) | |
917 | return 1; | |
918 | ||
919 | if (bbm_log_size) { | |
920 | struct bbm_log *log = (void *)mpb + | |
921 | __le32_to_cpu(mpb->mpb_size) - bbm_log_size; | |
922 | ||
923 | __u32 entry_count; | |
924 | ||
925 | if (bbm_log_size < sizeof(log->signature) + | |
926 | sizeof(log->entry_count)) | |
927 | return 2; | |
928 | ||
929 | entry_count = __le32_to_cpu(log->entry_count); | |
930 | if ((__le32_to_cpu(log->signature) != BBM_LOG_SIGNATURE) || | |
931 | (entry_count > BBM_LOG_MAX_ENTRIES)) | |
932 | return 3; | |
933 | ||
934 | if (bbm_log_size != | |
935 | sizeof(log->signature) + sizeof(log->entry_count) + | |
936 | entry_count * sizeof(struct bbm_log_entry)) | |
937 | return 4; | |
938 | ||
939 | memcpy(super->bbm_log, log, bbm_log_size); | |
940 | } else { | |
941 | super->bbm_log->signature = __cpu_to_le32(BBM_LOG_SIGNATURE); | |
942 | super->bbm_log->entry_count = 0; | |
943 | } | |
944 | ||
945 | return 0; | |
946 | } | |
947 | ||
b12796be TM |
948 | /* checks if bad block is within volume boundaries */ |
949 | static int is_bad_block_in_volume(const struct bbm_log_entry *entry, | |
950 | const unsigned long long start_sector, | |
951 | const unsigned long long size) | |
952 | { | |
953 | unsigned long long bb_start; | |
954 | unsigned long long bb_end; | |
955 | ||
956 | bb_start = __le48_to_cpu(&entry->defective_block_start); | |
957 | bb_end = bb_start + (entry->marked_count + 1); | |
958 | ||
959 | if (((bb_start >= start_sector) && (bb_start < start_sector + size)) || | |
960 | ((bb_end >= start_sector) && (bb_end <= start_sector + size))) | |
961 | return 1; | |
962 | ||
963 | return 0; | |
964 | } | |
965 | ||
966 | /* get list of bad blocks on a drive for a volume */ | |
967 | static void get_volume_badblocks(const struct bbm_log *log, const __u8 idx, | |
968 | const unsigned long long start_sector, | |
969 | const unsigned long long size, | |
970 | struct md_bb *bbs) | |
971 | { | |
972 | __u32 count = 0; | |
973 | __u32 i; | |
974 | ||
975 | for (i = 0; i < log->entry_count; i++) { | |
976 | const struct bbm_log_entry *ent = | |
977 | &log->marked_block_entries[i]; | |
978 | struct md_bb_entry *bb; | |
979 | ||
980 | if ((ent->disk_ordinal == idx) && | |
981 | is_bad_block_in_volume(ent, start_sector, size)) { | |
982 | ||
983 | if (!bbs->entries) { | |
984 | bbs->entries = xmalloc(BBM_LOG_MAX_ENTRIES * | |
985 | sizeof(*bb)); | |
986 | if (!bbs->entries) | |
987 | break; | |
988 | } | |
989 | ||
990 | bb = &bbs->entries[count++]; | |
991 | bb->sector = __le48_to_cpu(&ent->defective_block_start); | |
992 | bb->length = ent->marked_count + 1; | |
993 | } | |
994 | } | |
995 | bbs->count = count; | |
996 | } | |
997 | ||
98130f40 AK |
998 | /* |
999 | * for second_map: | |
238c0a71 AK |
1000 | * == MAP_0 get first map |
1001 | * == MAP_1 get second map | |
1002 | * == MAP_X than get map according to the current migr_state | |
98130f40 AK |
1003 | */ |
1004 | static __u32 get_imsm_ord_tbl_ent(struct imsm_dev *dev, | |
1005 | int slot, | |
1006 | int second_map) | |
7eef0453 DW |
1007 | { |
1008 | struct imsm_map *map; | |
1009 | ||
5e7b0330 | 1010 | map = get_imsm_map(dev, second_map); |
7eef0453 | 1011 | |
ff077194 DW |
1012 | /* top byte identifies disk under rebuild */ |
1013 | return __le32_to_cpu(map->disk_ord_tbl[slot]); | |
1014 | } | |
1015 | ||
1016 | #define ord_to_idx(ord) (((ord) << 8) >> 8) | |
98130f40 | 1017 | static __u32 get_imsm_disk_idx(struct imsm_dev *dev, int slot, int second_map) |
ff077194 | 1018 | { |
98130f40 | 1019 | __u32 ord = get_imsm_ord_tbl_ent(dev, slot, second_map); |
ff077194 DW |
1020 | |
1021 | return ord_to_idx(ord); | |
7eef0453 DW |
1022 | } |
1023 | ||
be73972f DW |
1024 | static void set_imsm_ord_tbl_ent(struct imsm_map *map, int slot, __u32 ord) |
1025 | { | |
1026 | map->disk_ord_tbl[slot] = __cpu_to_le32(ord); | |
1027 | } | |
1028 | ||
f21e18ca | 1029 | static int get_imsm_disk_slot(struct imsm_map *map, unsigned idx) |
620b1713 DW |
1030 | { |
1031 | int slot; | |
1032 | __u32 ord; | |
1033 | ||
1034 | for (slot = 0; slot < map->num_members; slot++) { | |
1035 | ord = __le32_to_cpu(map->disk_ord_tbl[slot]); | |
1036 | if (ord_to_idx(ord) == idx) | |
1037 | return slot; | |
1038 | } | |
1039 | ||
1040 | return -1; | |
1041 | } | |
1042 | ||
cdddbdbc DW |
1043 | static int get_imsm_raid_level(struct imsm_map *map) |
1044 | { | |
1045 | if (map->raid_level == 1) { | |
1046 | if (map->num_members == 2) | |
1047 | return 1; | |
1048 | else | |
1049 | return 10; | |
1050 | } | |
1051 | ||
1052 | return map->raid_level; | |
1053 | } | |
1054 | ||
c2c087e6 DW |
1055 | static int cmp_extent(const void *av, const void *bv) |
1056 | { | |
1057 | const struct extent *a = av; | |
1058 | const struct extent *b = bv; | |
1059 | if (a->start < b->start) | |
1060 | return -1; | |
1061 | if (a->start > b->start) | |
1062 | return 1; | |
1063 | return 0; | |
1064 | } | |
1065 | ||
0dcecb2e | 1066 | static int count_memberships(struct dl *dl, struct intel_super *super) |
c2c087e6 | 1067 | { |
c2c087e6 | 1068 | int memberships = 0; |
620b1713 | 1069 | int i; |
c2c087e6 | 1070 | |
949c47a0 DW |
1071 | for (i = 0; i < super->anchor->num_raid_devs; i++) { |
1072 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
238c0a71 | 1073 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
c2c087e6 | 1074 | |
620b1713 DW |
1075 | if (get_imsm_disk_slot(map, dl->index) >= 0) |
1076 | memberships++; | |
c2c087e6 | 1077 | } |
0dcecb2e DW |
1078 | |
1079 | return memberships; | |
1080 | } | |
1081 | ||
b81221b7 CA |
1082 | static __u32 imsm_min_reserved_sectors(struct intel_super *super); |
1083 | ||
5551b113 CA |
1084 | static int split_ull(unsigned long long n, __u32 *lo, __u32 *hi) |
1085 | { | |
1086 | if (lo == 0 || hi == 0) | |
1087 | return 1; | |
1088 | *lo = __le32_to_cpu((unsigned)n); | |
1089 | *hi = __le32_to_cpu((unsigned)(n >> 32)); | |
1090 | return 0; | |
1091 | } | |
1092 | ||
1093 | static unsigned long long join_u32(__u32 lo, __u32 hi) | |
1094 | { | |
1095 | return (unsigned long long)__le32_to_cpu(lo) | | |
1096 | (((unsigned long long)__le32_to_cpu(hi)) << 32); | |
1097 | } | |
1098 | ||
1099 | static unsigned long long total_blocks(struct imsm_disk *disk) | |
1100 | { | |
1101 | if (disk == NULL) | |
1102 | return 0; | |
1103 | return join_u32(disk->total_blocks_lo, disk->total_blocks_hi); | |
1104 | } | |
1105 | ||
1106 | static unsigned long long pba_of_lba0(struct imsm_map *map) | |
1107 | { | |
1108 | if (map == NULL) | |
1109 | return 0; | |
1110 | return join_u32(map->pba_of_lba0_lo, map->pba_of_lba0_hi); | |
1111 | } | |
1112 | ||
1113 | static unsigned long long blocks_per_member(struct imsm_map *map) | |
1114 | { | |
1115 | if (map == NULL) | |
1116 | return 0; | |
1117 | return join_u32(map->blocks_per_member_lo, map->blocks_per_member_hi); | |
1118 | } | |
1119 | ||
1120 | static unsigned long long num_data_stripes(struct imsm_map *map) | |
1121 | { | |
1122 | if (map == NULL) | |
1123 | return 0; | |
1124 | return join_u32(map->num_data_stripes_lo, map->num_data_stripes_hi); | |
1125 | } | |
1126 | ||
1127 | static void set_total_blocks(struct imsm_disk *disk, unsigned long long n) | |
1128 | { | |
1129 | split_ull(n, &disk->total_blocks_lo, &disk->total_blocks_hi); | |
1130 | } | |
1131 | ||
1132 | static void set_pba_of_lba0(struct imsm_map *map, unsigned long long n) | |
1133 | { | |
1134 | split_ull(n, &map->pba_of_lba0_lo, &map->pba_of_lba0_hi); | |
1135 | } | |
1136 | ||
1137 | static void set_blocks_per_member(struct imsm_map *map, unsigned long long n) | |
1138 | { | |
1139 | split_ull(n, &map->blocks_per_member_lo, &map->blocks_per_member_hi); | |
1140 | } | |
1141 | ||
1142 | static void set_num_data_stripes(struct imsm_map *map, unsigned long long n) | |
1143 | { | |
1144 | split_ull(n, &map->num_data_stripes_lo, &map->num_data_stripes_hi); | |
1145 | } | |
1146 | ||
0dcecb2e DW |
1147 | static struct extent *get_extents(struct intel_super *super, struct dl *dl) |
1148 | { | |
1149 | /* find a list of used extents on the given physical device */ | |
1150 | struct extent *rv, *e; | |
620b1713 | 1151 | int i; |
0dcecb2e | 1152 | int memberships = count_memberships(dl, super); |
b276dd33 DW |
1153 | __u32 reservation; |
1154 | ||
1155 | /* trim the reserved area for spares, so they can join any array | |
1156 | * regardless of whether the OROM has assigned sectors from the | |
1157 | * IMSM_RESERVED_SECTORS region | |
1158 | */ | |
1159 | if (dl->index == -1) | |
b81221b7 | 1160 | reservation = imsm_min_reserved_sectors(super); |
b276dd33 DW |
1161 | else |
1162 | reservation = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
0dcecb2e | 1163 | |
503975b9 | 1164 | rv = xcalloc(sizeof(struct extent), (memberships + 1)); |
c2c087e6 DW |
1165 | e = rv; |
1166 | ||
949c47a0 DW |
1167 | for (i = 0; i < super->anchor->num_raid_devs; i++) { |
1168 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
238c0a71 | 1169 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
c2c087e6 | 1170 | |
620b1713 | 1171 | if (get_imsm_disk_slot(map, dl->index) >= 0) { |
5551b113 CA |
1172 | e->start = pba_of_lba0(map); |
1173 | e->size = blocks_per_member(map); | |
620b1713 | 1174 | e++; |
c2c087e6 DW |
1175 | } |
1176 | } | |
1177 | qsort(rv, memberships, sizeof(*rv), cmp_extent); | |
1178 | ||
1011e834 | 1179 | /* determine the start of the metadata |
14e8215b DW |
1180 | * when no raid devices are defined use the default |
1181 | * ...otherwise allow the metadata to truncate the value | |
1182 | * as is the case with older versions of imsm | |
1183 | */ | |
1184 | if (memberships) { | |
1185 | struct extent *last = &rv[memberships - 1]; | |
5551b113 | 1186 | unsigned long long remainder; |
14e8215b | 1187 | |
5551b113 | 1188 | remainder = total_blocks(&dl->disk) - (last->start + last->size); |
dda5855f DW |
1189 | /* round down to 1k block to satisfy precision of the kernel |
1190 | * 'size' interface | |
1191 | */ | |
1192 | remainder &= ~1UL; | |
1193 | /* make sure remainder is still sane */ | |
f21e18ca | 1194 | if (remainder < (unsigned)ROUND_UP(super->len, 512) >> 9) |
dda5855f | 1195 | remainder = ROUND_UP(super->len, 512) >> 9; |
14e8215b DW |
1196 | if (reservation > remainder) |
1197 | reservation = remainder; | |
1198 | } | |
5551b113 | 1199 | e->start = total_blocks(&dl->disk) - reservation; |
c2c087e6 DW |
1200 | e->size = 0; |
1201 | return rv; | |
1202 | } | |
1203 | ||
14e8215b DW |
1204 | /* try to determine how much space is reserved for metadata from |
1205 | * the last get_extents() entry, otherwise fallback to the | |
1206 | * default | |
1207 | */ | |
1208 | static __u32 imsm_reserved_sectors(struct intel_super *super, struct dl *dl) | |
1209 | { | |
1210 | struct extent *e; | |
1211 | int i; | |
1212 | __u32 rv; | |
1213 | ||
1214 | /* for spares just return a minimal reservation which will grow | |
1215 | * once the spare is picked up by an array | |
1216 | */ | |
1217 | if (dl->index == -1) | |
1218 | return MPB_SECTOR_CNT; | |
1219 | ||
1220 | e = get_extents(super, dl); | |
1221 | if (!e) | |
1222 | return MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
1223 | ||
1224 | /* scroll to last entry */ | |
1225 | for (i = 0; e[i].size; i++) | |
1226 | continue; | |
1227 | ||
5551b113 | 1228 | rv = total_blocks(&dl->disk) - e[i].start; |
14e8215b DW |
1229 | |
1230 | free(e); | |
1231 | ||
1232 | return rv; | |
1233 | } | |
1234 | ||
25ed7e59 DW |
1235 | static int is_spare(struct imsm_disk *disk) |
1236 | { | |
1237 | return (disk->status & SPARE_DISK) == SPARE_DISK; | |
1238 | } | |
1239 | ||
1240 | static int is_configured(struct imsm_disk *disk) | |
1241 | { | |
1242 | return (disk->status & CONFIGURED_DISK) == CONFIGURED_DISK; | |
1243 | } | |
1244 | ||
1245 | static int is_failed(struct imsm_disk *disk) | |
1246 | { | |
1247 | return (disk->status & FAILED_DISK) == FAILED_DISK; | |
1248 | } | |
1249 | ||
b81221b7 CA |
1250 | /* try to determine how much space is reserved for metadata from |
1251 | * the last get_extents() entry on the smallest active disk, | |
1252 | * otherwise fallback to the default | |
1253 | */ | |
1254 | static __u32 imsm_min_reserved_sectors(struct intel_super *super) | |
1255 | { | |
1256 | struct extent *e; | |
1257 | int i; | |
5551b113 CA |
1258 | unsigned long long min_active; |
1259 | __u32 remainder; | |
b81221b7 CA |
1260 | __u32 rv = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; |
1261 | struct dl *dl, *dl_min = NULL; | |
1262 | ||
1263 | if (!super) | |
1264 | return rv; | |
1265 | ||
1266 | min_active = 0; | |
1267 | for (dl = super->disks; dl; dl = dl->next) { | |
1268 | if (dl->index < 0) | |
1269 | continue; | |
5551b113 CA |
1270 | unsigned long long blocks = total_blocks(&dl->disk); |
1271 | if (blocks < min_active || min_active == 0) { | |
b81221b7 | 1272 | dl_min = dl; |
5551b113 | 1273 | min_active = blocks; |
b81221b7 CA |
1274 | } |
1275 | } | |
1276 | if (!dl_min) | |
1277 | return rv; | |
1278 | ||
1279 | /* find last lba used by subarrays on the smallest active disk */ | |
1280 | e = get_extents(super, dl_min); | |
1281 | if (!e) | |
1282 | return rv; | |
1283 | for (i = 0; e[i].size; i++) | |
1284 | continue; | |
1285 | ||
1286 | remainder = min_active - e[i].start; | |
1287 | free(e); | |
1288 | ||
1289 | /* to give priority to recovery we should not require full | |
1290 | IMSM_RESERVED_SECTORS from the spare */ | |
1291 | rv = MPB_SECTOR_CNT + NUM_BLOCKS_DIRTY_STRIPE_REGION; | |
1292 | ||
1293 | /* if real reservation is smaller use that value */ | |
1294 | return (remainder < rv) ? remainder : rv; | |
1295 | } | |
1296 | ||
80e7f8c3 AC |
1297 | /* Return minimum size of a spare that can be used in this array*/ |
1298 | static unsigned long long min_acceptable_spare_size_imsm(struct supertype *st) | |
1299 | { | |
1300 | struct intel_super *super = st->sb; | |
1301 | struct dl *dl; | |
1302 | struct extent *e; | |
1303 | int i; | |
1304 | unsigned long long rv = 0; | |
1305 | ||
1306 | if (!super) | |
1307 | return rv; | |
1308 | /* find first active disk in array */ | |
1309 | dl = super->disks; | |
1310 | while (dl && (is_failed(&dl->disk) || dl->index == -1)) | |
1311 | dl = dl->next; | |
1312 | if (!dl) | |
1313 | return rv; | |
1314 | /* find last lba used by subarrays */ | |
1315 | e = get_extents(super, dl); | |
1316 | if (!e) | |
1317 | return rv; | |
1318 | for (i = 0; e[i].size; i++) | |
1319 | continue; | |
1320 | if (i > 0) | |
1321 | rv = e[i-1].start + e[i-1].size; | |
1322 | free(e); | |
b81221b7 | 1323 | |
80e7f8c3 | 1324 | /* add the amount of space needed for metadata */ |
b81221b7 CA |
1325 | rv = rv + imsm_min_reserved_sectors(super); |
1326 | ||
80e7f8c3 AC |
1327 | return rv * 512; |
1328 | } | |
1329 | ||
d1e02575 AK |
1330 | static int is_gen_migration(struct imsm_dev *dev); |
1331 | ||
f36a9ecd PB |
1332 | #define IMSM_4K_DIV 8 |
1333 | ||
1799c9e8 | 1334 | #ifndef MDASSEMBLE |
c47b0ff6 AK |
1335 | static __u64 blocks_per_migr_unit(struct intel_super *super, |
1336 | struct imsm_dev *dev); | |
1e5c6983 | 1337 | |
c47b0ff6 AK |
1338 | static void print_imsm_dev(struct intel_super *super, |
1339 | struct imsm_dev *dev, | |
1340 | char *uuid, | |
1341 | int disk_idx) | |
cdddbdbc DW |
1342 | { |
1343 | __u64 sz; | |
0d80bb2f | 1344 | int slot, i; |
238c0a71 AK |
1345 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
1346 | struct imsm_map *map2 = get_imsm_map(dev, MAP_1); | |
b10b37b8 | 1347 | __u32 ord; |
cdddbdbc DW |
1348 | |
1349 | printf("\n"); | |
1e7bc0ed | 1350 | printf("[%.16s]:\n", dev->volume); |
44470971 | 1351 | printf(" UUID : %s\n", uuid); |
dd8bcb3b AK |
1352 | printf(" RAID Level : %d", get_imsm_raid_level(map)); |
1353 | if (map2) | |
1354 | printf(" <-- %d", get_imsm_raid_level(map2)); | |
1355 | printf("\n"); | |
1356 | printf(" Members : %d", map->num_members); | |
1357 | if (map2) | |
1358 | printf(" <-- %d", map2->num_members); | |
1359 | printf("\n"); | |
0d80bb2f DW |
1360 | printf(" Slots : ["); |
1361 | for (i = 0; i < map->num_members; i++) { | |
238c0a71 | 1362 | ord = get_imsm_ord_tbl_ent(dev, i, MAP_0); |
0d80bb2f DW |
1363 | printf("%s", ord & IMSM_ORD_REBUILD ? "_" : "U"); |
1364 | } | |
dd8bcb3b AK |
1365 | printf("]"); |
1366 | if (map2) { | |
1367 | printf(" <-- ["); | |
1368 | for (i = 0; i < map2->num_members; i++) { | |
238c0a71 | 1369 | ord = get_imsm_ord_tbl_ent(dev, i, MAP_1); |
dd8bcb3b AK |
1370 | printf("%s", ord & IMSM_ORD_REBUILD ? "_" : "U"); |
1371 | } | |
1372 | printf("]"); | |
1373 | } | |
1374 | printf("\n"); | |
7095bccb AK |
1375 | printf(" Failed disk : "); |
1376 | if (map->failed_disk_num == 0xff) | |
1377 | printf("none"); | |
1378 | else | |
1379 | printf("%i", map->failed_disk_num); | |
1380 | printf("\n"); | |
620b1713 DW |
1381 | slot = get_imsm_disk_slot(map, disk_idx); |
1382 | if (slot >= 0) { | |
238c0a71 | 1383 | ord = get_imsm_ord_tbl_ent(dev, slot, MAP_X); |
b10b37b8 DW |
1384 | printf(" This Slot : %d%s\n", slot, |
1385 | ord & IMSM_ORD_REBUILD ? " (out-of-sync)" : ""); | |
1386 | } else | |
cdddbdbc DW |
1387 | printf(" This Slot : ?\n"); |
1388 | sz = __le32_to_cpu(dev->size_high); | |
1389 | sz <<= 32; | |
1390 | sz += __le32_to_cpu(dev->size_low); | |
1391 | printf(" Array Size : %llu%s\n", (unsigned long long)sz, | |
1392 | human_size(sz * 512)); | |
5551b113 | 1393 | sz = blocks_per_member(map); |
cdddbdbc DW |
1394 | printf(" Per Dev Size : %llu%s\n", (unsigned long long)sz, |
1395 | human_size(sz * 512)); | |
5551b113 CA |
1396 | printf(" Sector Offset : %llu\n", |
1397 | pba_of_lba0(map)); | |
1398 | printf(" Num Stripes : %llu\n", | |
1399 | num_data_stripes(map)); | |
dd8bcb3b | 1400 | printf(" Chunk Size : %u KiB", |
cdddbdbc | 1401 | __le16_to_cpu(map->blocks_per_strip) / 2); |
dd8bcb3b AK |
1402 | if (map2) |
1403 | printf(" <-- %u KiB", | |
1404 | __le16_to_cpu(map2->blocks_per_strip) / 2); | |
1405 | printf("\n"); | |
cdddbdbc | 1406 | printf(" Reserved : %d\n", __le32_to_cpu(dev->reserved_blocks)); |
8655a7b1 | 1407 | printf(" Migrate State : "); |
1484e727 DW |
1408 | if (dev->vol.migr_state) { |
1409 | if (migr_type(dev) == MIGR_INIT) | |
8655a7b1 | 1410 | printf("initialize\n"); |
1484e727 | 1411 | else if (migr_type(dev) == MIGR_REBUILD) |
8655a7b1 | 1412 | printf("rebuild\n"); |
1484e727 | 1413 | else if (migr_type(dev) == MIGR_VERIFY) |
8655a7b1 | 1414 | printf("check\n"); |
1484e727 | 1415 | else if (migr_type(dev) == MIGR_GEN_MIGR) |
8655a7b1 | 1416 | printf("general migration\n"); |
1484e727 | 1417 | else if (migr_type(dev) == MIGR_STATE_CHANGE) |
8655a7b1 | 1418 | printf("state change\n"); |
1484e727 | 1419 | else if (migr_type(dev) == MIGR_REPAIR) |
8655a7b1 | 1420 | printf("repair\n"); |
1484e727 | 1421 | else |
8655a7b1 DW |
1422 | printf("<unknown:%d>\n", migr_type(dev)); |
1423 | } else | |
1424 | printf("idle\n"); | |
3393c6af DW |
1425 | printf(" Map State : %s", map_state_str[map->map_state]); |
1426 | if (dev->vol.migr_state) { | |
238c0a71 | 1427 | struct imsm_map *map = get_imsm_map(dev, MAP_1); |
1e5c6983 | 1428 | |
b10b37b8 | 1429 | printf(" <-- %s", map_state_str[map->map_state]); |
464d40e8 LD |
1430 | printf("\n Checkpoint : %u ", |
1431 | __le32_to_cpu(dev->vol.curr_migr_unit)); | |
089f9d79 | 1432 | if (is_gen_migration(dev) && (slot > 1 || slot < 0)) |
464d40e8 LD |
1433 | printf("(N/A)"); |
1434 | else | |
1435 | printf("(%llu)", (unsigned long long) | |
1436 | blocks_per_migr_unit(super, dev)); | |
3393c6af DW |
1437 | } |
1438 | printf("\n"); | |
cdddbdbc | 1439 | printf(" Dirty State : %s\n", dev->vol.dirty ? "dirty" : "clean"); |
cdddbdbc DW |
1440 | } |
1441 | ||
0ec1f4e8 | 1442 | static void print_imsm_disk(struct imsm_disk *disk, int index, __u32 reserved) |
cdddbdbc | 1443 | { |
1f24f035 | 1444 | char str[MAX_RAID_SERIAL_LEN + 1]; |
cdddbdbc DW |
1445 | __u64 sz; |
1446 | ||
0ec1f4e8 | 1447 | if (index < -1 || !disk) |
e9d82038 DW |
1448 | return; |
1449 | ||
cdddbdbc | 1450 | printf("\n"); |
1f24f035 | 1451 | snprintf(str, MAX_RAID_SERIAL_LEN + 1, "%s", disk->serial); |
0ec1f4e8 DW |
1452 | if (index >= 0) |
1453 | printf(" Disk%02d Serial : %s\n", index, str); | |
1454 | else | |
1455 | printf(" Disk Serial : %s\n", str); | |
25ed7e59 DW |
1456 | printf(" State :%s%s%s\n", is_spare(disk) ? " spare" : "", |
1457 | is_configured(disk) ? " active" : "", | |
1458 | is_failed(disk) ? " failed" : ""); | |
cdddbdbc | 1459 | printf(" Id : %08x\n", __le32_to_cpu(disk->scsi_id)); |
5551b113 | 1460 | sz = total_blocks(disk) - reserved; |
cdddbdbc DW |
1461 | printf(" Usable Size : %llu%s\n", (unsigned long long)sz, |
1462 | human_size(sz * 512)); | |
1463 | } | |
1464 | ||
de44e46f PB |
1465 | void convert_to_4k_imsm_migr_rec(struct intel_super *super) |
1466 | { | |
1467 | struct migr_record *migr_rec = super->migr_rec; | |
1468 | ||
1469 | migr_rec->blocks_per_unit /= IMSM_4K_DIV; | |
1470 | migr_rec->ckpt_area_pba /= IMSM_4K_DIV; | |
1471 | migr_rec->dest_1st_member_lba /= IMSM_4K_DIV; | |
1472 | migr_rec->dest_depth_per_unit /= IMSM_4K_DIV; | |
1473 | split_ull((join_u32(migr_rec->post_migr_vol_cap, | |
1474 | migr_rec->post_migr_vol_cap_hi) / IMSM_4K_DIV), | |
1475 | &migr_rec->post_migr_vol_cap, &migr_rec->post_migr_vol_cap_hi); | |
1476 | } | |
1477 | ||
f36a9ecd PB |
1478 | void convert_to_4k_imsm_disk(struct imsm_disk *disk) |
1479 | { | |
1480 | set_total_blocks(disk, (total_blocks(disk)/IMSM_4K_DIV)); | |
1481 | } | |
1482 | ||
1483 | void convert_to_4k(struct intel_super *super) | |
1484 | { | |
1485 | struct imsm_super *mpb = super->anchor; | |
1486 | struct imsm_disk *disk; | |
1487 | int i; | |
1488 | ||
1489 | for (i = 0; i < mpb->num_disks ; i++) { | |
1490 | disk = __get_imsm_disk(mpb, i); | |
1491 | /* disk */ | |
1492 | convert_to_4k_imsm_disk(disk); | |
1493 | } | |
1494 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
1495 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
1496 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
1497 | /* dev */ | |
1498 | split_ull((join_u32(dev->size_low, dev->size_high)/IMSM_4K_DIV), | |
1499 | &dev->size_low, &dev->size_high); | |
1500 | dev->vol.curr_migr_unit /= IMSM_4K_DIV; | |
1501 | ||
1502 | /* map0 */ | |
1503 | set_blocks_per_member(map, blocks_per_member(map)/IMSM_4K_DIV); | |
1504 | map->blocks_per_strip /= IMSM_4K_DIV; | |
1505 | set_pba_of_lba0(map, pba_of_lba0(map)/IMSM_4K_DIV); | |
1506 | ||
1507 | if (dev->vol.migr_state) { | |
1508 | /* map1 */ | |
1509 | map = get_imsm_map(dev, MAP_1); | |
1510 | set_blocks_per_member(map, | |
1511 | blocks_per_member(map)/IMSM_4K_DIV); | |
1512 | map->blocks_per_strip /= IMSM_4K_DIV; | |
1513 | set_pba_of_lba0(map, pba_of_lba0(map)/IMSM_4K_DIV); | |
1514 | } | |
1515 | } | |
1516 | ||
1517 | mpb->check_sum = __gen_imsm_checksum(mpb); | |
1518 | } | |
1519 | ||
520e69e2 AK |
1520 | void examine_migr_rec_imsm(struct intel_super *super) |
1521 | { | |
1522 | struct migr_record *migr_rec = super->migr_rec; | |
1523 | struct imsm_super *mpb = super->anchor; | |
1524 | int i; | |
1525 | ||
1526 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
1527 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
3136abe5 | 1528 | struct imsm_map *map; |
b4ab44d8 | 1529 | int slot = -1; |
3136abe5 | 1530 | |
520e69e2 AK |
1531 | if (is_gen_migration(dev) == 0) |
1532 | continue; | |
1533 | ||
1534 | printf("\nMigration Record Information:"); | |
3136abe5 | 1535 | |
44bfe6df AK |
1536 | /* first map under migration */ |
1537 | map = get_imsm_map(dev, MAP_0); | |
3136abe5 AK |
1538 | if (map) |
1539 | slot = get_imsm_disk_slot(map, super->disks->index); | |
089f9d79 | 1540 | if (map == NULL || slot > 1 || slot < 0) { |
520e69e2 AK |
1541 | printf(" Empty\n "); |
1542 | printf("Examine one of first two disks in array\n"); | |
1543 | break; | |
1544 | } | |
1545 | printf("\n Status : "); | |
1546 | if (__le32_to_cpu(migr_rec->rec_status) == UNIT_SRC_NORMAL) | |
1547 | printf("Normal\n"); | |
1548 | else | |
1549 | printf("Contains Data\n"); | |
1550 | printf(" Current Unit : %u\n", | |
1551 | __le32_to_cpu(migr_rec->curr_migr_unit)); | |
1552 | printf(" Family : %u\n", | |
1553 | __le32_to_cpu(migr_rec->family_num)); | |
1554 | printf(" Ascending : %u\n", | |
1555 | __le32_to_cpu(migr_rec->ascending_migr)); | |
1556 | printf(" Blocks Per Unit : %u\n", | |
1557 | __le32_to_cpu(migr_rec->blocks_per_unit)); | |
1558 | printf(" Dest. Depth Per Unit : %u\n", | |
1559 | __le32_to_cpu(migr_rec->dest_depth_per_unit)); | |
1560 | printf(" Checkpoint Area pba : %u\n", | |
1561 | __le32_to_cpu(migr_rec->ckpt_area_pba)); | |
1562 | printf(" First member lba : %u\n", | |
1563 | __le32_to_cpu(migr_rec->dest_1st_member_lba)); | |
1564 | printf(" Total Number of Units : %u\n", | |
1565 | __le32_to_cpu(migr_rec->num_migr_units)); | |
1566 | printf(" Size of volume : %u\n", | |
1567 | __le32_to_cpu(migr_rec->post_migr_vol_cap)); | |
1568 | printf(" Expansion space for LBA64 : %u\n", | |
1569 | __le32_to_cpu(migr_rec->post_migr_vol_cap_hi)); | |
1570 | printf(" Record was read from : %u\n", | |
1571 | __le32_to_cpu(migr_rec->ckpt_read_disk_num)); | |
1572 | ||
1573 | break; | |
1574 | } | |
1575 | } | |
9e2d750d | 1576 | #endif /* MDASSEMBLE */ |
f36a9ecd | 1577 | |
de44e46f PB |
1578 | void convert_from_4k_imsm_migr_rec(struct intel_super *super) |
1579 | { | |
1580 | struct migr_record *migr_rec = super->migr_rec; | |
1581 | ||
1582 | migr_rec->blocks_per_unit *= IMSM_4K_DIV; | |
1583 | migr_rec->ckpt_area_pba *= IMSM_4K_DIV; | |
1584 | migr_rec->dest_1st_member_lba *= IMSM_4K_DIV; | |
1585 | migr_rec->dest_depth_per_unit *= IMSM_4K_DIV; | |
1586 | split_ull((join_u32(migr_rec->post_migr_vol_cap, | |
1587 | migr_rec->post_migr_vol_cap_hi) * IMSM_4K_DIV), | |
1588 | &migr_rec->post_migr_vol_cap, | |
1589 | &migr_rec->post_migr_vol_cap_hi); | |
1590 | } | |
1591 | ||
f36a9ecd PB |
1592 | void convert_from_4k(struct intel_super *super) |
1593 | { | |
1594 | struct imsm_super *mpb = super->anchor; | |
1595 | struct imsm_disk *disk; | |
1596 | int i; | |
1597 | ||
1598 | for (i = 0; i < mpb->num_disks ; i++) { | |
1599 | disk = __get_imsm_disk(mpb, i); | |
1600 | /* disk */ | |
1601 | set_total_blocks(disk, (total_blocks(disk)*IMSM_4K_DIV)); | |
1602 | } | |
1603 | ||
1604 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
1605 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
1606 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
1607 | /* dev */ | |
1608 | split_ull((join_u32(dev->size_low, dev->size_high)*IMSM_4K_DIV), | |
1609 | &dev->size_low, &dev->size_high); | |
1610 | dev->vol.curr_migr_unit *= IMSM_4K_DIV; | |
1611 | ||
1612 | /* map0 */ | |
1613 | set_blocks_per_member(map, blocks_per_member(map)*IMSM_4K_DIV); | |
1614 | map->blocks_per_strip *= IMSM_4K_DIV; | |
1615 | set_pba_of_lba0(map, pba_of_lba0(map)*IMSM_4K_DIV); | |
1616 | ||
1617 | if (dev->vol.migr_state) { | |
1618 | /* map1 */ | |
1619 | map = get_imsm_map(dev, MAP_1); | |
1620 | set_blocks_per_member(map, | |
1621 | blocks_per_member(map)*IMSM_4K_DIV); | |
1622 | map->blocks_per_strip *= IMSM_4K_DIV; | |
1623 | set_pba_of_lba0(map, pba_of_lba0(map)*IMSM_4K_DIV); | |
1624 | } | |
1625 | } | |
1626 | ||
1627 | mpb->check_sum = __gen_imsm_checksum(mpb); | |
1628 | } | |
1629 | ||
19482bcc AK |
1630 | /******************************************************************************* |
1631 | * function: imsm_check_attributes | |
1632 | * Description: Function checks if features represented by attributes flags | |
1011e834 | 1633 | * are supported by mdadm. |
19482bcc AK |
1634 | * Parameters: |
1635 | * attributes - Attributes read from metadata | |
1636 | * Returns: | |
1011e834 N |
1637 | * 0 - passed attributes contains unsupported features flags |
1638 | * 1 - all features are supported | |
19482bcc AK |
1639 | ******************************************************************************/ |
1640 | static int imsm_check_attributes(__u32 attributes) | |
1641 | { | |
1642 | int ret_val = 1; | |
418f9b36 N |
1643 | __u32 not_supported = MPB_ATTRIB_SUPPORTED^0xffffffff; |
1644 | ||
1645 | not_supported &= ~MPB_ATTRIB_IGNORED; | |
19482bcc AK |
1646 | |
1647 | not_supported &= attributes; | |
1648 | if (not_supported) { | |
e7b84f9d | 1649 | pr_err("(IMSM): Unsupported attributes : %x\n", |
418f9b36 | 1650 | (unsigned)__le32_to_cpu(not_supported)); |
19482bcc AK |
1651 | if (not_supported & MPB_ATTRIB_CHECKSUM_VERIFY) { |
1652 | dprintf("\t\tMPB_ATTRIB_CHECKSUM_VERIFY \n"); | |
1653 | not_supported ^= MPB_ATTRIB_CHECKSUM_VERIFY; | |
1654 | } | |
1655 | if (not_supported & MPB_ATTRIB_2TB) { | |
1656 | dprintf("\t\tMPB_ATTRIB_2TB\n"); | |
1657 | not_supported ^= MPB_ATTRIB_2TB; | |
1658 | } | |
1659 | if (not_supported & MPB_ATTRIB_RAID0) { | |
1660 | dprintf("\t\tMPB_ATTRIB_RAID0\n"); | |
1661 | not_supported ^= MPB_ATTRIB_RAID0; | |
1662 | } | |
1663 | if (not_supported & MPB_ATTRIB_RAID1) { | |
1664 | dprintf("\t\tMPB_ATTRIB_RAID1\n"); | |
1665 | not_supported ^= MPB_ATTRIB_RAID1; | |
1666 | } | |
1667 | if (not_supported & MPB_ATTRIB_RAID10) { | |
1668 | dprintf("\t\tMPB_ATTRIB_RAID10\n"); | |
1669 | not_supported ^= MPB_ATTRIB_RAID10; | |
1670 | } | |
1671 | if (not_supported & MPB_ATTRIB_RAID1E) { | |
1672 | dprintf("\t\tMPB_ATTRIB_RAID1E\n"); | |
1673 | not_supported ^= MPB_ATTRIB_RAID1E; | |
1674 | } | |
1675 | if (not_supported & MPB_ATTRIB_RAID5) { | |
1676 | dprintf("\t\tMPB_ATTRIB_RAID5\n"); | |
1677 | not_supported ^= MPB_ATTRIB_RAID5; | |
1678 | } | |
1679 | if (not_supported & MPB_ATTRIB_RAIDCNG) { | |
1680 | dprintf("\t\tMPB_ATTRIB_RAIDCNG\n"); | |
1681 | not_supported ^= MPB_ATTRIB_RAIDCNG; | |
1682 | } | |
1683 | if (not_supported & MPB_ATTRIB_BBM) { | |
1684 | dprintf("\t\tMPB_ATTRIB_BBM\n"); | |
1685 | not_supported ^= MPB_ATTRIB_BBM; | |
1686 | } | |
1687 | if (not_supported & MPB_ATTRIB_CHECKSUM_VERIFY) { | |
1688 | dprintf("\t\tMPB_ATTRIB_CHECKSUM_VERIFY (== MPB_ATTRIB_LEGACY)\n"); | |
1689 | not_supported ^= MPB_ATTRIB_CHECKSUM_VERIFY; | |
1690 | } | |
1691 | if (not_supported & MPB_ATTRIB_EXP_STRIPE_SIZE) { | |
1692 | dprintf("\t\tMPB_ATTRIB_EXP_STRIP_SIZE\n"); | |
1693 | not_supported ^= MPB_ATTRIB_EXP_STRIPE_SIZE; | |
1694 | } | |
1695 | if (not_supported & MPB_ATTRIB_2TB_DISK) { | |
1696 | dprintf("\t\tMPB_ATTRIB_2TB_DISK\n"); | |
1697 | not_supported ^= MPB_ATTRIB_2TB_DISK; | |
1698 | } | |
1699 | if (not_supported & MPB_ATTRIB_NEVER_USE2) { | |
1700 | dprintf("\t\tMPB_ATTRIB_NEVER_USE2\n"); | |
1701 | not_supported ^= MPB_ATTRIB_NEVER_USE2; | |
1702 | } | |
1703 | if (not_supported & MPB_ATTRIB_NEVER_USE) { | |
1704 | dprintf("\t\tMPB_ATTRIB_NEVER_USE\n"); | |
1705 | not_supported ^= MPB_ATTRIB_NEVER_USE; | |
1706 | } | |
1707 | ||
1708 | if (not_supported) | |
1ade5cc1 | 1709 | dprintf("(IMSM): Unknown attributes : %x\n", not_supported); |
19482bcc AK |
1710 | |
1711 | ret_val = 0; | |
1712 | } | |
1713 | ||
1714 | return ret_val; | |
1715 | } | |
1716 | ||
9e2d750d | 1717 | #ifndef MDASSEMBLE |
a5d85af7 | 1718 | static void getinfo_super_imsm(struct supertype *st, struct mdinfo *info, char *map); |
44470971 | 1719 | |
cdddbdbc DW |
1720 | static void examine_super_imsm(struct supertype *st, char *homehost) |
1721 | { | |
1722 | struct intel_super *super = st->sb; | |
949c47a0 | 1723 | struct imsm_super *mpb = super->anchor; |
cdddbdbc DW |
1724 | char str[MAX_SIGNATURE_LENGTH]; |
1725 | int i; | |
27fd6274 DW |
1726 | struct mdinfo info; |
1727 | char nbuf[64]; | |
cdddbdbc | 1728 | __u32 sum; |
14e8215b | 1729 | __u32 reserved = imsm_reserved_sectors(super, super->disks); |
94827db3 | 1730 | struct dl *dl; |
27fd6274 | 1731 | |
cdddbdbc DW |
1732 | snprintf(str, MPB_SIG_LEN, "%s", mpb->sig); |
1733 | printf(" Magic : %s\n", str); | |
1734 | snprintf(str, strlen(MPB_VERSION_RAID0), "%s", get_imsm_version(mpb)); | |
1735 | printf(" Version : %s\n", get_imsm_version(mpb)); | |
148acb7b | 1736 | printf(" Orig Family : %08x\n", __le32_to_cpu(mpb->orig_family_num)); |
cdddbdbc DW |
1737 | printf(" Family : %08x\n", __le32_to_cpu(mpb->family_num)); |
1738 | printf(" Generation : %08x\n", __le32_to_cpu(mpb->generation_num)); | |
19482bcc AK |
1739 | printf(" Attributes : "); |
1740 | if (imsm_check_attributes(mpb->attributes)) | |
1741 | printf("All supported\n"); | |
1742 | else | |
1743 | printf("not supported\n"); | |
a5d85af7 | 1744 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1745 | fname_from_uuid(st, &info, nbuf, ':'); |
27fd6274 | 1746 | printf(" UUID : %s\n", nbuf + 5); |
cdddbdbc DW |
1747 | sum = __le32_to_cpu(mpb->check_sum); |
1748 | printf(" Checksum : %08x %s\n", sum, | |
949c47a0 | 1749 | __gen_imsm_checksum(mpb) == sum ? "correct" : "incorrect"); |
f36a9ecd | 1750 | printf(" MPB Sectors : %d\n", mpb_sectors(mpb, super->sector_size)); |
cdddbdbc DW |
1751 | printf(" Disks : %d\n", mpb->num_disks); |
1752 | printf(" RAID Devices : %d\n", mpb->num_raid_devs); | |
0ec1f4e8 | 1753 | print_imsm_disk(__get_imsm_disk(mpb, super->disks->index), super->disks->index, reserved); |
8d67477f | 1754 | if (get_imsm_bbm_log_size(super->bbm_log)) { |
604b746f JD |
1755 | struct bbm_log *log = super->bbm_log; |
1756 | ||
1757 | printf("\n"); | |
1758 | printf("Bad Block Management Log:\n"); | |
1759 | printf(" Log Size : %d\n", __le32_to_cpu(mpb->bbm_log_size)); | |
1760 | printf(" Signature : %x\n", __le32_to_cpu(log->signature)); | |
1761 | printf(" Entry Count : %d\n", __le32_to_cpu(log->entry_count)); | |
604b746f | 1762 | } |
44470971 DW |
1763 | for (i = 0; i < mpb->num_raid_devs; i++) { |
1764 | struct mdinfo info; | |
1765 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
1766 | ||
1767 | super->current_vol = i; | |
a5d85af7 | 1768 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1769 | fname_from_uuid(st, &info, nbuf, ':'); |
c47b0ff6 | 1770 | print_imsm_dev(super, dev, nbuf + 5, super->disks->index); |
44470971 | 1771 | } |
cdddbdbc DW |
1772 | for (i = 0; i < mpb->num_disks; i++) { |
1773 | if (i == super->disks->index) | |
1774 | continue; | |
0ec1f4e8 | 1775 | print_imsm_disk(__get_imsm_disk(mpb, i), i, reserved); |
cdddbdbc | 1776 | } |
94827db3 | 1777 | |
0ec1f4e8 DW |
1778 | for (dl = super->disks; dl; dl = dl->next) |
1779 | if (dl->index == -1) | |
1780 | print_imsm_disk(&dl->disk, -1, reserved); | |
520e69e2 AK |
1781 | |
1782 | examine_migr_rec_imsm(super); | |
cdddbdbc DW |
1783 | } |
1784 | ||
061f2c6a | 1785 | static void brief_examine_super_imsm(struct supertype *st, int verbose) |
cdddbdbc | 1786 | { |
27fd6274 | 1787 | /* We just write a generic IMSM ARRAY entry */ |
ff54de6e N |
1788 | struct mdinfo info; |
1789 | char nbuf[64]; | |
1e7bc0ed | 1790 | struct intel_super *super = st->sb; |
1e7bc0ed | 1791 | |
0d5a423f DW |
1792 | if (!super->anchor->num_raid_devs) { |
1793 | printf("ARRAY metadata=imsm\n"); | |
1e7bc0ed | 1794 | return; |
0d5a423f | 1795 | } |
ff54de6e | 1796 | |
a5d85af7 | 1797 | getinfo_super_imsm(st, &info, NULL); |
4737ae25 N |
1798 | fname_from_uuid(st, &info, nbuf, ':'); |
1799 | printf("ARRAY metadata=imsm UUID=%s\n", nbuf + 5); | |
1800 | } | |
1801 | ||
1802 | static void brief_examine_subarrays_imsm(struct supertype *st, int verbose) | |
1803 | { | |
1804 | /* We just write a generic IMSM ARRAY entry */ | |
1805 | struct mdinfo info; | |
1806 | char nbuf[64]; | |
1807 | char nbuf1[64]; | |
1808 | struct intel_super *super = st->sb; | |
1809 | int i; | |
1810 | ||
1811 | if (!super->anchor->num_raid_devs) | |
1812 | return; | |
1813 | ||
a5d85af7 | 1814 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1815 | fname_from_uuid(st, &info, nbuf, ':'); |
1e7bc0ed DW |
1816 | for (i = 0; i < super->anchor->num_raid_devs; i++) { |
1817 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
1818 | ||
1819 | super->current_vol = i; | |
a5d85af7 | 1820 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1821 | fname_from_uuid(st, &info, nbuf1, ':'); |
1124b3cf | 1822 | printf("ARRAY /dev/md/%.16s container=%s member=%d UUID=%s\n", |
cf8de691 | 1823 | dev->volume, nbuf + 5, i, nbuf1 + 5); |
1e7bc0ed | 1824 | } |
cdddbdbc DW |
1825 | } |
1826 | ||
9d84c8ea DW |
1827 | static void export_examine_super_imsm(struct supertype *st) |
1828 | { | |
1829 | struct intel_super *super = st->sb; | |
1830 | struct imsm_super *mpb = super->anchor; | |
1831 | struct mdinfo info; | |
1832 | char nbuf[64]; | |
1833 | ||
a5d85af7 | 1834 | getinfo_super_imsm(st, &info, NULL); |
9d84c8ea DW |
1835 | fname_from_uuid(st, &info, nbuf, ':'); |
1836 | printf("MD_METADATA=imsm\n"); | |
1837 | printf("MD_LEVEL=container\n"); | |
1838 | printf("MD_UUID=%s\n", nbuf+5); | |
1839 | printf("MD_DEVICES=%u\n", mpb->num_disks); | |
1840 | } | |
1841 | ||
74db60b0 N |
1842 | static int copy_metadata_imsm(struct supertype *st, int from, int to) |
1843 | { | |
f36a9ecd | 1844 | /* The second last sector of the device contains |
74db60b0 N |
1845 | * the "struct imsm_super" metadata. |
1846 | * This contains mpb_size which is the size in bytes of the | |
1847 | * extended metadata. This is located immediately before | |
1848 | * the imsm_super. | |
1849 | * We want to read all that, plus the last sector which | |
1850 | * may contain a migration record, and write it all | |
1851 | * to the target. | |
1852 | */ | |
1853 | void *buf; | |
1854 | unsigned long long dsize, offset; | |
1855 | int sectors; | |
1856 | struct imsm_super *sb; | |
f36a9ecd PB |
1857 | struct intel_super *super = st->sb; |
1858 | unsigned int sector_size = super->sector_size; | |
1859 | unsigned int written = 0; | |
74db60b0 | 1860 | |
de44e46f | 1861 | if (posix_memalign(&buf, MAX_SECTOR_SIZE, MAX_SECTOR_SIZE) != 0) |
74db60b0 N |
1862 | return 1; |
1863 | ||
1864 | if (!get_dev_size(from, NULL, &dsize)) | |
1865 | goto err; | |
1866 | ||
f36a9ecd | 1867 | if (lseek64(from, dsize-(2*sector_size), 0) < 0) |
74db60b0 | 1868 | goto err; |
f36a9ecd | 1869 | if (read(from, buf, sector_size) != sector_size) |
74db60b0 N |
1870 | goto err; |
1871 | sb = buf; | |
1872 | if (strncmp((char*)sb->sig, MPB_SIGNATURE, MPB_SIG_LEN) != 0) | |
1873 | goto err; | |
1874 | ||
f36a9ecd PB |
1875 | sectors = mpb_sectors(sb, sector_size) + 2; |
1876 | offset = dsize - sectors * sector_size; | |
74db60b0 N |
1877 | if (lseek64(from, offset, 0) < 0 || |
1878 | lseek64(to, offset, 0) < 0) | |
1879 | goto err; | |
f36a9ecd PB |
1880 | while (written < sectors * sector_size) { |
1881 | int n = sectors*sector_size - written; | |
74db60b0 N |
1882 | if (n > 4096) |
1883 | n = 4096; | |
1884 | if (read(from, buf, n) != n) | |
1885 | goto err; | |
1886 | if (write(to, buf, n) != n) | |
1887 | goto err; | |
1888 | written += n; | |
1889 | } | |
1890 | free(buf); | |
1891 | return 0; | |
1892 | err: | |
1893 | free(buf); | |
1894 | return 1; | |
1895 | } | |
1896 | ||
cdddbdbc DW |
1897 | static void detail_super_imsm(struct supertype *st, char *homehost) |
1898 | { | |
3ebe00a1 DW |
1899 | struct mdinfo info; |
1900 | char nbuf[64]; | |
1901 | ||
a5d85af7 | 1902 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1903 | fname_from_uuid(st, &info, nbuf, ':'); |
3ebe00a1 | 1904 | printf("\n UUID : %s\n", nbuf + 5); |
cdddbdbc DW |
1905 | } |
1906 | ||
1907 | static void brief_detail_super_imsm(struct supertype *st) | |
1908 | { | |
ff54de6e N |
1909 | struct mdinfo info; |
1910 | char nbuf[64]; | |
a5d85af7 | 1911 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1912 | fname_from_uuid(st, &info, nbuf, ':'); |
ff54de6e | 1913 | printf(" UUID=%s", nbuf + 5); |
cdddbdbc | 1914 | } |
d665cc31 DW |
1915 | |
1916 | static int imsm_read_serial(int fd, char *devname, __u8 *serial); | |
1917 | static void fd2devname(int fd, char *name); | |
1918 | ||
120dc887 | 1919 | static int ahci_enumerate_ports(const char *hba_path, int port_count, int host_base, int verbose) |
d665cc31 | 1920 | { |
120dc887 LM |
1921 | /* dump an unsorted list of devices attached to AHCI Intel storage |
1922 | * controller, as well as non-connected ports | |
d665cc31 DW |
1923 | */ |
1924 | int hba_len = strlen(hba_path) + 1; | |
1925 | struct dirent *ent; | |
1926 | DIR *dir; | |
1927 | char *path = NULL; | |
1928 | int err = 0; | |
1929 | unsigned long port_mask = (1 << port_count) - 1; | |
1930 | ||
f21e18ca | 1931 | if (port_count > (int)sizeof(port_mask) * 8) { |
ba728be7 | 1932 | if (verbose > 0) |
e7b84f9d | 1933 | pr_err("port_count %d out of range\n", port_count); |
d665cc31 DW |
1934 | return 2; |
1935 | } | |
1936 | ||
1937 | /* scroll through /sys/dev/block looking for devices attached to | |
1938 | * this hba | |
1939 | */ | |
1940 | dir = opendir("/sys/dev/block"); | |
1a6dd6b9 PB |
1941 | if (!dir) |
1942 | return 1; | |
1943 | ||
1944 | for (ent = readdir(dir); ent; ent = readdir(dir)) { | |
d665cc31 DW |
1945 | int fd; |
1946 | char model[64]; | |
1947 | char vendor[64]; | |
1948 | char buf[1024]; | |
1949 | int major, minor; | |
1950 | char *device; | |
1951 | char *c; | |
1952 | int port; | |
1953 | int type; | |
1954 | ||
1955 | if (sscanf(ent->d_name, "%d:%d", &major, &minor) != 2) | |
1956 | continue; | |
1957 | path = devt_to_devpath(makedev(major, minor)); | |
1958 | if (!path) | |
1959 | continue; | |
1960 | if (!path_attached_to_hba(path, hba_path)) { | |
1961 | free(path); | |
1962 | path = NULL; | |
1963 | continue; | |
1964 | } | |
1965 | ||
1966 | /* retrieve the scsi device type */ | |
1967 | if (asprintf(&device, "/sys/dev/block/%d:%d/device/xxxxxxx", major, minor) < 0) { | |
ba728be7 | 1968 | if (verbose > 0) |
e7b84f9d | 1969 | pr_err("failed to allocate 'device'\n"); |
d665cc31 DW |
1970 | err = 2; |
1971 | break; | |
1972 | } | |
1973 | sprintf(device, "/sys/dev/block/%d:%d/device/type", major, minor); | |
193b6c0b | 1974 | if (load_sys(device, buf, sizeof(buf)) != 0) { |
ba728be7 | 1975 | if (verbose > 0) |
e7b84f9d | 1976 | pr_err("failed to read device type for %s\n", |
d665cc31 DW |
1977 | path); |
1978 | err = 2; | |
1979 | free(device); | |
1980 | break; | |
1981 | } | |
1982 | type = strtoul(buf, NULL, 10); | |
1983 | ||
1984 | /* if it's not a disk print the vendor and model */ | |
1985 | if (!(type == 0 || type == 7 || type == 14)) { | |
1986 | vendor[0] = '\0'; | |
1987 | model[0] = '\0'; | |
1988 | sprintf(device, "/sys/dev/block/%d:%d/device/vendor", major, minor); | |
193b6c0b | 1989 | if (load_sys(device, buf, sizeof(buf)) == 0) { |
d665cc31 DW |
1990 | strncpy(vendor, buf, sizeof(vendor)); |
1991 | vendor[sizeof(vendor) - 1] = '\0'; | |
1992 | c = (char *) &vendor[sizeof(vendor) - 1]; | |
1993 | while (isspace(*c) || *c == '\0') | |
1994 | *c-- = '\0'; | |
1995 | ||
1996 | } | |
1997 | sprintf(device, "/sys/dev/block/%d:%d/device/model", major, minor); | |
193b6c0b | 1998 | if (load_sys(device, buf, sizeof(buf)) == 0) { |
d665cc31 DW |
1999 | strncpy(model, buf, sizeof(model)); |
2000 | model[sizeof(model) - 1] = '\0'; | |
2001 | c = (char *) &model[sizeof(model) - 1]; | |
2002 | while (isspace(*c) || *c == '\0') | |
2003 | *c-- = '\0'; | |
2004 | } | |
2005 | ||
2006 | if (vendor[0] && model[0]) | |
2007 | sprintf(buf, "%.64s %.64s", vendor, model); | |
2008 | else | |
2009 | switch (type) { /* numbers from hald/linux/device.c */ | |
2010 | case 1: sprintf(buf, "tape"); break; | |
2011 | case 2: sprintf(buf, "printer"); break; | |
2012 | case 3: sprintf(buf, "processor"); break; | |
2013 | case 4: | |
2014 | case 5: sprintf(buf, "cdrom"); break; | |
2015 | case 6: sprintf(buf, "scanner"); break; | |
2016 | case 8: sprintf(buf, "media_changer"); break; | |
2017 | case 9: sprintf(buf, "comm"); break; | |
2018 | case 12: sprintf(buf, "raid"); break; | |
2019 | default: sprintf(buf, "unknown"); | |
2020 | } | |
2021 | } else | |
2022 | buf[0] = '\0'; | |
2023 | free(device); | |
2024 | ||
2025 | /* chop device path to 'host%d' and calculate the port number */ | |
2026 | c = strchr(&path[hba_len], '/'); | |
4e5e717d | 2027 | if (!c) { |
ba728be7 | 2028 | if (verbose > 0) |
e7b84f9d | 2029 | pr_err("%s - invalid path name\n", path + hba_len); |
4e5e717d AW |
2030 | err = 2; |
2031 | break; | |
2032 | } | |
d665cc31 | 2033 | *c = '\0'; |
0858eccf AP |
2034 | if ((sscanf(&path[hba_len], "ata%d", &port) == 1) || |
2035 | ((sscanf(&path[hba_len], "host%d", &port) == 1))) | |
d665cc31 DW |
2036 | port -= host_base; |
2037 | else { | |
ba728be7 | 2038 | if (verbose > 0) { |
d665cc31 | 2039 | *c = '/'; /* repair the full string */ |
e7b84f9d | 2040 | pr_err("failed to determine port number for %s\n", |
d665cc31 DW |
2041 | path); |
2042 | } | |
2043 | err = 2; | |
2044 | break; | |
2045 | } | |
2046 | ||
2047 | /* mark this port as used */ | |
2048 | port_mask &= ~(1 << port); | |
2049 | ||
2050 | /* print out the device information */ | |
2051 | if (buf[0]) { | |
2052 | printf(" Port%d : - non-disk device (%s) -\n", port, buf); | |
2053 | continue; | |
2054 | } | |
2055 | ||
2056 | fd = dev_open(ent->d_name, O_RDONLY); | |
2057 | if (fd < 0) | |
2058 | printf(" Port%d : - disk info unavailable -\n", port); | |
2059 | else { | |
2060 | fd2devname(fd, buf); | |
2061 | printf(" Port%d : %s", port, buf); | |
2062 | if (imsm_read_serial(fd, NULL, (__u8 *) buf) == 0) | |
664d5325 | 2063 | printf(" (%.*s)\n", MAX_RAID_SERIAL_LEN, buf); |
d665cc31 | 2064 | else |
664d5325 | 2065 | printf(" ()\n"); |
4dab422a | 2066 | close(fd); |
d665cc31 | 2067 | } |
d665cc31 DW |
2068 | free(path); |
2069 | path = NULL; | |
2070 | } | |
2071 | if (path) | |
2072 | free(path); | |
2073 | if (dir) | |
2074 | closedir(dir); | |
2075 | if (err == 0) { | |
2076 | int i; | |
2077 | ||
2078 | for (i = 0; i < port_count; i++) | |
2079 | if (port_mask & (1 << i)) | |
2080 | printf(" Port%d : - no device attached -\n", i); | |
2081 | } | |
2082 | ||
2083 | return err; | |
2084 | } | |
2085 | ||
b5eece69 | 2086 | static int print_vmd_attached_devs(struct sys_dev *hba) |
60f0f54d PB |
2087 | { |
2088 | struct dirent *ent; | |
2089 | DIR *dir; | |
2090 | char path[292]; | |
2091 | char link[256]; | |
2092 | char *c, *rp; | |
2093 | ||
2094 | if (hba->type != SYS_DEV_VMD) | |
b5eece69 | 2095 | return 1; |
60f0f54d PB |
2096 | |
2097 | /* scroll through /sys/dev/block looking for devices attached to | |
2098 | * this hba | |
2099 | */ | |
2100 | dir = opendir("/sys/bus/pci/drivers/nvme"); | |
b9135011 | 2101 | if (!dir) |
b5eece69 | 2102 | return 1; |
b9135011 JS |
2103 | |
2104 | for (ent = readdir(dir); ent; ent = readdir(dir)) { | |
60f0f54d PB |
2105 | int n; |
2106 | ||
2107 | /* is 'ent' a device? check that the 'subsystem' link exists and | |
2108 | * that its target matches 'bus' | |
2109 | */ | |
2110 | sprintf(path, "/sys/bus/pci/drivers/nvme/%s/subsystem", | |
2111 | ent->d_name); | |
2112 | n = readlink(path, link, sizeof(link)); | |
2113 | if (n < 0 || n >= (int)sizeof(link)) | |
2114 | continue; | |
2115 | link[n] = '\0'; | |
2116 | c = strrchr(link, '/'); | |
2117 | if (!c) | |
2118 | continue; | |
2119 | if (strncmp("pci", c+1, strlen("pci")) != 0) | |
2120 | continue; | |
2121 | ||
2122 | sprintf(path, "/sys/bus/pci/drivers/nvme/%s", ent->d_name); | |
2123 | /* if not a intel NVMe - skip it*/ | |
2124 | if (devpath_to_vendor(path) != 0x8086) | |
2125 | continue; | |
2126 | ||
2127 | rp = realpath(path, NULL); | |
2128 | if (!rp) | |
2129 | continue; | |
2130 | ||
2131 | if (path_attached_to_hba(rp, hba->path)) { | |
2132 | printf(" NVMe under VMD : %s\n", rp); | |
2133 | } | |
2134 | free(rp); | |
2135 | } | |
2136 | ||
b9135011 | 2137 | closedir(dir); |
b5eece69 | 2138 | return 0; |
60f0f54d PB |
2139 | } |
2140 | ||
120dc887 LM |
2141 | static void print_found_intel_controllers(struct sys_dev *elem) |
2142 | { | |
2143 | for (; elem; elem = elem->next) { | |
e7b84f9d | 2144 | pr_err("found Intel(R) "); |
120dc887 LM |
2145 | if (elem->type == SYS_DEV_SATA) |
2146 | fprintf(stderr, "SATA "); | |
155cbb4c LM |
2147 | else if (elem->type == SYS_DEV_SAS) |
2148 | fprintf(stderr, "SAS "); | |
0858eccf AP |
2149 | else if (elem->type == SYS_DEV_NVME) |
2150 | fprintf(stderr, "NVMe "); | |
60f0f54d PB |
2151 | |
2152 | if (elem->type == SYS_DEV_VMD) | |
2153 | fprintf(stderr, "VMD domain"); | |
2154 | else | |
2155 | fprintf(stderr, "RAID controller"); | |
2156 | ||
120dc887 LM |
2157 | if (elem->pci_id) |
2158 | fprintf(stderr, " at %s", elem->pci_id); | |
2159 | fprintf(stderr, ".\n"); | |
2160 | } | |
2161 | fflush(stderr); | |
2162 | } | |
2163 | ||
120dc887 LM |
2164 | static int ahci_get_port_count(const char *hba_path, int *port_count) |
2165 | { | |
2166 | struct dirent *ent; | |
2167 | DIR *dir; | |
2168 | int host_base = -1; | |
2169 | ||
2170 | *port_count = 0; | |
2171 | if ((dir = opendir(hba_path)) == NULL) | |
2172 | return -1; | |
2173 | ||
2174 | for (ent = readdir(dir); ent; ent = readdir(dir)) { | |
2175 | int host; | |
2176 | ||
0858eccf AP |
2177 | if ((sscanf(ent->d_name, "ata%d", &host) != 1) && |
2178 | ((sscanf(ent->d_name, "host%d", &host) != 1))) | |
120dc887 LM |
2179 | continue; |
2180 | if (*port_count == 0) | |
2181 | host_base = host; | |
2182 | else if (host < host_base) | |
2183 | host_base = host; | |
2184 | ||
2185 | if (host + 1 > *port_count + host_base) | |
2186 | *port_count = host + 1 - host_base; | |
2187 | } | |
2188 | closedir(dir); | |
2189 | return host_base; | |
2190 | } | |
2191 | ||
a891a3c2 LM |
2192 | static void print_imsm_capability(const struct imsm_orom *orom) |
2193 | { | |
0858eccf AP |
2194 | printf(" Platform : Intel(R) "); |
2195 | if (orom->capabilities == 0 && orom->driver_features == 0) | |
2196 | printf("Matrix Storage Manager\n"); | |
2197 | else | |
2198 | printf("Rapid Storage Technology%s\n", | |
2199 | imsm_orom_is_enterprise(orom) ? " enterprise" : ""); | |
2200 | if (orom->major_ver || orom->minor_ver || orom->hotfix_ver || orom->build) | |
2201 | printf(" Version : %d.%d.%d.%d\n", orom->major_ver, | |
2202 | orom->minor_ver, orom->hotfix_ver, orom->build); | |
a891a3c2 LM |
2203 | printf(" RAID Levels :%s%s%s%s%s\n", |
2204 | imsm_orom_has_raid0(orom) ? " raid0" : "", | |
2205 | imsm_orom_has_raid1(orom) ? " raid1" : "", | |
2206 | imsm_orom_has_raid1e(orom) ? " raid1e" : "", | |
2207 | imsm_orom_has_raid10(orom) ? " raid10" : "", | |
2208 | imsm_orom_has_raid5(orom) ? " raid5" : ""); | |
2209 | printf(" Chunk Sizes :%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", | |
2210 | imsm_orom_has_chunk(orom, 2) ? " 2k" : "", | |
2211 | imsm_orom_has_chunk(orom, 4) ? " 4k" : "", | |
2212 | imsm_orom_has_chunk(orom, 8) ? " 8k" : "", | |
2213 | imsm_orom_has_chunk(orom, 16) ? " 16k" : "", | |
2214 | imsm_orom_has_chunk(orom, 32) ? " 32k" : "", | |
2215 | imsm_orom_has_chunk(orom, 64) ? " 64k" : "", | |
2216 | imsm_orom_has_chunk(orom, 128) ? " 128k" : "", | |
2217 | imsm_orom_has_chunk(orom, 256) ? " 256k" : "", | |
2218 | imsm_orom_has_chunk(orom, 512) ? " 512k" : "", | |
2219 | imsm_orom_has_chunk(orom, 1024*1) ? " 1M" : "", | |
2220 | imsm_orom_has_chunk(orom, 1024*2) ? " 2M" : "", | |
2221 | imsm_orom_has_chunk(orom, 1024*4) ? " 4M" : "", | |
2222 | imsm_orom_has_chunk(orom, 1024*8) ? " 8M" : "", | |
2223 | imsm_orom_has_chunk(orom, 1024*16) ? " 16M" : "", | |
2224 | imsm_orom_has_chunk(orom, 1024*32) ? " 32M" : "", | |
2225 | imsm_orom_has_chunk(orom, 1024*64) ? " 64M" : ""); | |
29cd0821 CA |
2226 | printf(" 2TB volumes :%s supported\n", |
2227 | (orom->attr & IMSM_OROM_ATTR_2TB)?"":" not"); | |
2228 | printf(" 2TB disks :%s supported\n", | |
2229 | (orom->attr & IMSM_OROM_ATTR_2TB_DISK)?"":" not"); | |
0e7f69a8 | 2230 | printf(" Max Disks : %d\n", orom->tds); |
0858eccf AP |
2231 | printf(" Max Volumes : %d per array, %d per %s\n", |
2232 | orom->vpa, orom->vphba, | |
2233 | imsm_orom_is_nvme(orom) ? "platform" : "controller"); | |
a891a3c2 LM |
2234 | return; |
2235 | } | |
2236 | ||
e50cf220 MN |
2237 | static void print_imsm_capability_export(const struct imsm_orom *orom) |
2238 | { | |
2239 | printf("MD_FIRMWARE_TYPE=imsm\n"); | |
0858eccf AP |
2240 | if (orom->major_ver || orom->minor_ver || orom->hotfix_ver || orom->build) |
2241 | printf("IMSM_VERSION=%d.%d.%d.%d\n", orom->major_ver, orom->minor_ver, | |
2242 | orom->hotfix_ver, orom->build); | |
e50cf220 MN |
2243 | printf("IMSM_SUPPORTED_RAID_LEVELS=%s%s%s%s%s\n", |
2244 | imsm_orom_has_raid0(orom) ? "raid0 " : "", | |
2245 | imsm_orom_has_raid1(orom) ? "raid1 " : "", | |
2246 | imsm_orom_has_raid1e(orom) ? "raid1e " : "", | |
2247 | imsm_orom_has_raid5(orom) ? "raid10 " : "", | |
2248 | imsm_orom_has_raid10(orom) ? "raid5 " : ""); | |
2249 | printf("IMSM_SUPPORTED_CHUNK_SIZES=%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", | |
2250 | imsm_orom_has_chunk(orom, 2) ? "2k " : "", | |
2251 | imsm_orom_has_chunk(orom, 4) ? "4k " : "", | |
2252 | imsm_orom_has_chunk(orom, 8) ? "8k " : "", | |
2253 | imsm_orom_has_chunk(orom, 16) ? "16k " : "", | |
2254 | imsm_orom_has_chunk(orom, 32) ? "32k " : "", | |
2255 | imsm_orom_has_chunk(orom, 64) ? "64k " : "", | |
2256 | imsm_orom_has_chunk(orom, 128) ? "128k " : "", | |
2257 | imsm_orom_has_chunk(orom, 256) ? "256k " : "", | |
2258 | imsm_orom_has_chunk(orom, 512) ? "512k " : "", | |
2259 | imsm_orom_has_chunk(orom, 1024*1) ? "1M " : "", | |
2260 | imsm_orom_has_chunk(orom, 1024*2) ? "2M " : "", | |
2261 | imsm_orom_has_chunk(orom, 1024*4) ? "4M " : "", | |
2262 | imsm_orom_has_chunk(orom, 1024*8) ? "8M " : "", | |
2263 | imsm_orom_has_chunk(orom, 1024*16) ? "16M " : "", | |
2264 | imsm_orom_has_chunk(orom, 1024*32) ? "32M " : "", | |
2265 | imsm_orom_has_chunk(orom, 1024*64) ? "64M " : ""); | |
2266 | printf("IMSM_2TB_VOLUMES=%s\n",(orom->attr & IMSM_OROM_ATTR_2TB) ? "yes" : "no"); | |
2267 | printf("IMSM_2TB_DISKS=%s\n",(orom->attr & IMSM_OROM_ATTR_2TB_DISK) ? "yes" : "no"); | |
2268 | printf("IMSM_MAX_DISKS=%d\n",orom->tds); | |
2269 | printf("IMSM_MAX_VOLUMES_PER_ARRAY=%d\n",orom->vpa); | |
2270 | printf("IMSM_MAX_VOLUMES_PER_CONTROLLER=%d\n",orom->vphba); | |
2271 | } | |
2272 | ||
9eafa1de | 2273 | static int detail_platform_imsm(int verbose, int enumerate_only, char *controller_path) |
d665cc31 DW |
2274 | { |
2275 | /* There are two components to imsm platform support, the ahci SATA | |
2276 | * controller and the option-rom. To find the SATA controller we | |
2277 | * simply look in /sys/bus/pci/drivers/ahci to see if an ahci | |
2278 | * controller with the Intel vendor id is present. This approach | |
2279 | * allows mdadm to leverage the kernel's ahci detection logic, with the | |
2280 | * caveat that if ahci.ko is not loaded mdadm will not be able to | |
2281 | * detect platform raid capabilities. The option-rom resides in a | |
2282 | * platform "Adapter ROM". We scan for its signature to retrieve the | |
2283 | * platform capabilities. If raid support is disabled in the BIOS the | |
2284 | * option-rom capability structure will not be available. | |
2285 | */ | |
d665cc31 | 2286 | struct sys_dev *list, *hba; |
d665cc31 DW |
2287 | int host_base = 0; |
2288 | int port_count = 0; | |
9eafa1de | 2289 | int result=1; |
d665cc31 | 2290 | |
5615172f | 2291 | if (enumerate_only) { |
a891a3c2 | 2292 | if (check_env("IMSM_NO_PLATFORM")) |
5615172f | 2293 | return 0; |
a891a3c2 LM |
2294 | list = find_intel_devices(); |
2295 | if (!list) | |
2296 | return 2; | |
2297 | for (hba = list; hba; hba = hba->next) { | |
6b781d33 AP |
2298 | if (find_imsm_capability(hba)) { |
2299 | result = 0; | |
a891a3c2 LM |
2300 | break; |
2301 | } | |
9eafa1de | 2302 | else |
6b781d33 | 2303 | result = 2; |
a891a3c2 | 2304 | } |
a891a3c2 | 2305 | return result; |
5615172f DW |
2306 | } |
2307 | ||
155cbb4c LM |
2308 | list = find_intel_devices(); |
2309 | if (!list) { | |
ba728be7 | 2310 | if (verbose > 0) |
7a862a02 | 2311 | pr_err("no active Intel(R) RAID controller found.\n"); |
d665cc31 | 2312 | return 2; |
ba728be7 | 2313 | } else if (verbose > 0) |
155cbb4c | 2314 | print_found_intel_controllers(list); |
d665cc31 | 2315 | |
a891a3c2 | 2316 | for (hba = list; hba; hba = hba->next) { |
0858eccf | 2317 | if (controller_path && (compare_paths(hba->path, controller_path) != 0)) |
9eafa1de | 2318 | continue; |
0858eccf | 2319 | if (!find_imsm_capability(hba)) { |
60f0f54d | 2320 | char buf[PATH_MAX]; |
e7b84f9d | 2321 | pr_err("imsm capabilities not found for controller: %s (type %s)\n", |
60f0f54d PB |
2322 | hba->type == SYS_DEV_VMD ? vmd_domain_to_controller(hba, buf) : hba->path, |
2323 | get_sys_dev_type(hba->type)); | |
0858eccf AP |
2324 | continue; |
2325 | } | |
2326 | result = 0; | |
2327 | } | |
2328 | ||
2329 | if (controller_path && result == 1) { | |
2330 | pr_err("no active Intel(R) RAID controller found under %s\n", | |
2331 | controller_path); | |
2332 | return result; | |
2333 | } | |
2334 | ||
5e1d6128 | 2335 | const struct orom_entry *entry; |
0858eccf | 2336 | |
5e1d6128 | 2337 | for (entry = orom_entries; entry; entry = entry->next) { |
60f0f54d | 2338 | if (entry->type == SYS_DEV_VMD) { |
07cb1e57 | 2339 | print_imsm_capability(&entry->orom); |
60f0f54d PB |
2340 | for (hba = list; hba; hba = hba->next) { |
2341 | if (hba->type == SYS_DEV_VMD) { | |
2342 | char buf[PATH_MAX]; | |
60f0f54d PB |
2343 | printf(" I/O Controller : %s (%s)\n", |
2344 | vmd_domain_to_controller(hba, buf), get_sys_dev_type(hba->type)); | |
b5eece69 PB |
2345 | if (print_vmd_attached_devs(hba)) { |
2346 | if (verbose > 0) | |
2347 | pr_err("failed to get devices attached to VMD domain.\n"); | |
2348 | result |= 2; | |
2349 | } | |
60f0f54d PB |
2350 | } |
2351 | } | |
07cb1e57 | 2352 | printf("\n"); |
60f0f54d PB |
2353 | continue; |
2354 | } | |
0858eccf | 2355 | |
60f0f54d PB |
2356 | print_imsm_capability(&entry->orom); |
2357 | if (entry->type == SYS_DEV_NVME) { | |
0858eccf AP |
2358 | for (hba = list; hba; hba = hba->next) { |
2359 | if (hba->type == SYS_DEV_NVME) | |
2360 | printf(" NVMe Device : %s\n", hba->path); | |
2361 | } | |
60f0f54d | 2362 | printf("\n"); |
0858eccf AP |
2363 | continue; |
2364 | } | |
2365 | ||
2366 | struct devid_list *devid; | |
5e1d6128 | 2367 | for (devid = entry->devid_list; devid; devid = devid->next) { |
0858eccf AP |
2368 | hba = device_by_id(devid->devid); |
2369 | if (!hba) | |
2370 | continue; | |
2371 | ||
9eafa1de MN |
2372 | printf(" I/O Controller : %s (%s)\n", |
2373 | hba->path, get_sys_dev_type(hba->type)); | |
2374 | if (hba->type == SYS_DEV_SATA) { | |
2375 | host_base = ahci_get_port_count(hba->path, &port_count); | |
2376 | if (ahci_enumerate_ports(hba->path, port_count, host_base, verbose)) { | |
2377 | if (verbose > 0) | |
7a862a02 | 2378 | pr_err("failed to enumerate ports on SATA controller at %s.\n", hba->pci_id); |
9eafa1de MN |
2379 | result |= 2; |
2380 | } | |
120dc887 LM |
2381 | } |
2382 | } | |
0858eccf | 2383 | printf("\n"); |
d665cc31 | 2384 | } |
155cbb4c | 2385 | |
120dc887 | 2386 | return result; |
d665cc31 | 2387 | } |
e50cf220 | 2388 | |
9eafa1de | 2389 | static int export_detail_platform_imsm(int verbose, char *controller_path) |
e50cf220 | 2390 | { |
e50cf220 MN |
2391 | struct sys_dev *list, *hba; |
2392 | int result=1; | |
2393 | ||
2394 | list = find_intel_devices(); | |
2395 | if (!list) { | |
2396 | if (verbose > 0) | |
2397 | pr_err("IMSM_DETAIL_PLATFORM_ERROR=NO_INTEL_DEVICES\n"); | |
2398 | result = 2; | |
e50cf220 MN |
2399 | return result; |
2400 | } | |
2401 | ||
2402 | for (hba = list; hba; hba = hba->next) { | |
9eafa1de MN |
2403 | if (controller_path && (compare_paths(hba->path,controller_path) != 0)) |
2404 | continue; | |
60f0f54d PB |
2405 | if (!find_imsm_capability(hba) && verbose > 0) { |
2406 | char buf[PATH_MAX]; | |
2407 | pr_err("IMSM_DETAIL_PLATFORM_ERROR=NO_IMSM_CAPABLE_DEVICE_UNDER_%s\n", | |
2408 | hba->type == SYS_DEV_VMD ? vmd_domain_to_controller(hba, buf) : hba->path); | |
2409 | } | |
0858eccf | 2410 | else |
e50cf220 | 2411 | result = 0; |
e50cf220 MN |
2412 | } |
2413 | ||
5e1d6128 | 2414 | const struct orom_entry *entry; |
0858eccf | 2415 | |
60f0f54d PB |
2416 | for (entry = orom_entries; entry; entry = entry->next) { |
2417 | if (entry->type == SYS_DEV_VMD) { | |
2418 | for (hba = list; hba; hba = hba->next) | |
2419 | print_imsm_capability_export(&entry->orom); | |
2420 | continue; | |
2421 | } | |
5e1d6128 | 2422 | print_imsm_capability_export(&entry->orom); |
60f0f54d | 2423 | } |
0858eccf | 2424 | |
e50cf220 MN |
2425 | return result; |
2426 | } | |
2427 | ||
cdddbdbc DW |
2428 | #endif |
2429 | ||
2430 | static int match_home_imsm(struct supertype *st, char *homehost) | |
2431 | { | |
5115ca67 DW |
2432 | /* the imsm metadata format does not specify any host |
2433 | * identification information. We return -1 since we can never | |
2434 | * confirm nor deny whether a given array is "meant" for this | |
148acb7b | 2435 | * host. We rely on compare_super and the 'family_num' fields to |
5115ca67 DW |
2436 | * exclude member disks that do not belong, and we rely on |
2437 | * mdadm.conf to specify the arrays that should be assembled. | |
2438 | * Auto-assembly may still pick up "foreign" arrays. | |
2439 | */ | |
cdddbdbc | 2440 | |
9362c1c8 | 2441 | return -1; |
cdddbdbc DW |
2442 | } |
2443 | ||
2444 | static void uuid_from_super_imsm(struct supertype *st, int uuid[4]) | |
2445 | { | |
51006d85 N |
2446 | /* The uuid returned here is used for: |
2447 | * uuid to put into bitmap file (Create, Grow) | |
2448 | * uuid for backup header when saving critical section (Grow) | |
2449 | * comparing uuids when re-adding a device into an array | |
2450 | * In these cases the uuid required is that of the data-array, | |
2451 | * not the device-set. | |
2452 | * uuid to recognise same set when adding a missing device back | |
2453 | * to an array. This is a uuid for the device-set. | |
1011e834 | 2454 | * |
51006d85 N |
2455 | * For each of these we can make do with a truncated |
2456 | * or hashed uuid rather than the original, as long as | |
2457 | * everyone agrees. | |
2458 | * In each case the uuid required is that of the data-array, | |
2459 | * not the device-set. | |
43dad3d6 | 2460 | */ |
51006d85 N |
2461 | /* imsm does not track uuid's so we synthesis one using sha1 on |
2462 | * - The signature (Which is constant for all imsm array, but no matter) | |
148acb7b | 2463 | * - the orig_family_num of the container |
51006d85 N |
2464 | * - the index number of the volume |
2465 | * - the 'serial' number of the volume. | |
2466 | * Hopefully these are all constant. | |
2467 | */ | |
2468 | struct intel_super *super = st->sb; | |
43dad3d6 | 2469 | |
51006d85 N |
2470 | char buf[20]; |
2471 | struct sha1_ctx ctx; | |
2472 | struct imsm_dev *dev = NULL; | |
148acb7b | 2473 | __u32 family_num; |
51006d85 | 2474 | |
148acb7b DW |
2475 | /* some mdadm versions failed to set ->orig_family_num, in which |
2476 | * case fall back to ->family_num. orig_family_num will be | |
2477 | * fixed up with the first metadata update. | |
2478 | */ | |
2479 | family_num = super->anchor->orig_family_num; | |
2480 | if (family_num == 0) | |
2481 | family_num = super->anchor->family_num; | |
51006d85 | 2482 | sha1_init_ctx(&ctx); |
92bd8f8d | 2483 | sha1_process_bytes(super->anchor->sig, MPB_SIG_LEN, &ctx); |
148acb7b | 2484 | sha1_process_bytes(&family_num, sizeof(__u32), &ctx); |
51006d85 N |
2485 | if (super->current_vol >= 0) |
2486 | dev = get_imsm_dev(super, super->current_vol); | |
2487 | if (dev) { | |
2488 | __u32 vol = super->current_vol; | |
2489 | sha1_process_bytes(&vol, sizeof(vol), &ctx); | |
2490 | sha1_process_bytes(dev->volume, MAX_RAID_SERIAL_LEN, &ctx); | |
2491 | } | |
2492 | sha1_finish_ctx(&ctx, buf); | |
2493 | memcpy(uuid, buf, 4*4); | |
cdddbdbc DW |
2494 | } |
2495 | ||
0d481d37 | 2496 | #if 0 |
4f5bc454 DW |
2497 | static void |
2498 | get_imsm_numerical_version(struct imsm_super *mpb, int *m, int *p) | |
cdddbdbc | 2499 | { |
cdddbdbc DW |
2500 | __u8 *v = get_imsm_version(mpb); |
2501 | __u8 *end = mpb->sig + MAX_SIGNATURE_LENGTH; | |
2502 | char major[] = { 0, 0, 0 }; | |
2503 | char minor[] = { 0 ,0, 0 }; | |
2504 | char patch[] = { 0, 0, 0 }; | |
2505 | char *ver_parse[] = { major, minor, patch }; | |
2506 | int i, j; | |
2507 | ||
2508 | i = j = 0; | |
2509 | while (*v != '\0' && v < end) { | |
2510 | if (*v != '.' && j < 2) | |
2511 | ver_parse[i][j++] = *v; | |
2512 | else { | |
2513 | i++; | |
2514 | j = 0; | |
2515 | } | |
2516 | v++; | |
2517 | } | |
2518 | ||
4f5bc454 DW |
2519 | *m = strtol(minor, NULL, 0); |
2520 | *p = strtol(patch, NULL, 0); | |
2521 | } | |
0d481d37 | 2522 | #endif |
4f5bc454 | 2523 | |
1e5c6983 DW |
2524 | static __u32 migr_strip_blocks_resync(struct imsm_dev *dev) |
2525 | { | |
2526 | /* migr_strip_size when repairing or initializing parity */ | |
238c0a71 | 2527 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
1e5c6983 DW |
2528 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); |
2529 | ||
2530 | switch (get_imsm_raid_level(map)) { | |
2531 | case 5: | |
2532 | case 10: | |
2533 | return chunk; | |
2534 | default: | |
2535 | return 128*1024 >> 9; | |
2536 | } | |
2537 | } | |
2538 | ||
2539 | static __u32 migr_strip_blocks_rebuild(struct imsm_dev *dev) | |
2540 | { | |
2541 | /* migr_strip_size when rebuilding a degraded disk, no idea why | |
2542 | * this is different than migr_strip_size_resync(), but it's good | |
2543 | * to be compatible | |
2544 | */ | |
238c0a71 | 2545 | struct imsm_map *map = get_imsm_map(dev, MAP_1); |
1e5c6983 DW |
2546 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); |
2547 | ||
2548 | switch (get_imsm_raid_level(map)) { | |
2549 | case 1: | |
2550 | case 10: | |
2551 | if (map->num_members % map->num_domains == 0) | |
2552 | return 128*1024 >> 9; | |
2553 | else | |
2554 | return chunk; | |
2555 | case 5: | |
2556 | return max((__u32) 64*1024 >> 9, chunk); | |
2557 | default: | |
2558 | return 128*1024 >> 9; | |
2559 | } | |
2560 | } | |
2561 | ||
2562 | static __u32 num_stripes_per_unit_resync(struct imsm_dev *dev) | |
2563 | { | |
238c0a71 AK |
2564 | struct imsm_map *lo = get_imsm_map(dev, MAP_0); |
2565 | struct imsm_map *hi = get_imsm_map(dev, MAP_1); | |
1e5c6983 DW |
2566 | __u32 lo_chunk = __le32_to_cpu(lo->blocks_per_strip); |
2567 | __u32 hi_chunk = __le32_to_cpu(hi->blocks_per_strip); | |
2568 | ||
2569 | return max((__u32) 1, hi_chunk / lo_chunk); | |
2570 | } | |
2571 | ||
2572 | static __u32 num_stripes_per_unit_rebuild(struct imsm_dev *dev) | |
2573 | { | |
238c0a71 | 2574 | struct imsm_map *lo = get_imsm_map(dev, MAP_0); |
1e5c6983 DW |
2575 | int level = get_imsm_raid_level(lo); |
2576 | ||
2577 | if (level == 1 || level == 10) { | |
238c0a71 | 2578 | struct imsm_map *hi = get_imsm_map(dev, MAP_1); |
1e5c6983 DW |
2579 | |
2580 | return hi->num_domains; | |
2581 | } else | |
2582 | return num_stripes_per_unit_resync(dev); | |
2583 | } | |
2584 | ||
98130f40 | 2585 | static __u8 imsm_num_data_members(struct imsm_dev *dev, int second_map) |
1e5c6983 DW |
2586 | { |
2587 | /* named 'imsm_' because raid0, raid1 and raid10 | |
2588 | * counter-intuitively have the same number of data disks | |
2589 | */ | |
98130f40 | 2590 | struct imsm_map *map = get_imsm_map(dev, second_map); |
1e5c6983 DW |
2591 | |
2592 | switch (get_imsm_raid_level(map)) { | |
2593 | case 0: | |
36fd8ccc AK |
2594 | return map->num_members; |
2595 | break; | |
1e5c6983 DW |
2596 | case 1: |
2597 | case 10: | |
36fd8ccc | 2598 | return map->num_members/2; |
1e5c6983 DW |
2599 | case 5: |
2600 | return map->num_members - 1; | |
2601 | default: | |
1ade5cc1 | 2602 | dprintf("unsupported raid level\n"); |
1e5c6983 DW |
2603 | return 0; |
2604 | } | |
2605 | } | |
2606 | ||
2607 | static __u32 parity_segment_depth(struct imsm_dev *dev) | |
2608 | { | |
238c0a71 | 2609 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
1e5c6983 DW |
2610 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); |
2611 | ||
2612 | switch(get_imsm_raid_level(map)) { | |
2613 | case 1: | |
2614 | case 10: | |
2615 | return chunk * map->num_domains; | |
2616 | case 5: | |
2617 | return chunk * map->num_members; | |
2618 | default: | |
2619 | return chunk; | |
2620 | } | |
2621 | } | |
2622 | ||
2623 | static __u32 map_migr_block(struct imsm_dev *dev, __u32 block) | |
2624 | { | |
238c0a71 | 2625 | struct imsm_map *map = get_imsm_map(dev, MAP_1); |
1e5c6983 DW |
2626 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); |
2627 | __u32 strip = block / chunk; | |
2628 | ||
2629 | switch (get_imsm_raid_level(map)) { | |
2630 | case 1: | |
2631 | case 10: { | |
2632 | __u32 vol_strip = (strip * map->num_domains) + 1; | |
2633 | __u32 vol_stripe = vol_strip / map->num_members; | |
2634 | ||
2635 | return vol_stripe * chunk + block % chunk; | |
2636 | } case 5: { | |
2637 | __u32 stripe = strip / (map->num_members - 1); | |
2638 | ||
2639 | return stripe * chunk + block % chunk; | |
2640 | } | |
2641 | default: | |
2642 | return 0; | |
2643 | } | |
2644 | } | |
2645 | ||
c47b0ff6 AK |
2646 | static __u64 blocks_per_migr_unit(struct intel_super *super, |
2647 | struct imsm_dev *dev) | |
1e5c6983 DW |
2648 | { |
2649 | /* calculate the conversion factor between per member 'blocks' | |
2650 | * (md/{resync,rebuild}_start) and imsm migration units, return | |
2651 | * 0 for the 'not migrating' and 'unsupported migration' cases | |
2652 | */ | |
2653 | if (!dev->vol.migr_state) | |
2654 | return 0; | |
2655 | ||
2656 | switch (migr_type(dev)) { | |
c47b0ff6 AK |
2657 | case MIGR_GEN_MIGR: { |
2658 | struct migr_record *migr_rec = super->migr_rec; | |
2659 | return __le32_to_cpu(migr_rec->blocks_per_unit); | |
2660 | } | |
1e5c6983 DW |
2661 | case MIGR_VERIFY: |
2662 | case MIGR_REPAIR: | |
2663 | case MIGR_INIT: { | |
238c0a71 | 2664 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
1e5c6983 DW |
2665 | __u32 stripes_per_unit; |
2666 | __u32 blocks_per_unit; | |
2667 | __u32 parity_depth; | |
2668 | __u32 migr_chunk; | |
2669 | __u32 block_map; | |
2670 | __u32 block_rel; | |
2671 | __u32 segment; | |
2672 | __u32 stripe; | |
2673 | __u8 disks; | |
2674 | ||
2675 | /* yes, this is really the translation of migr_units to | |
2676 | * per-member blocks in the 'resync' case | |
2677 | */ | |
2678 | stripes_per_unit = num_stripes_per_unit_resync(dev); | |
2679 | migr_chunk = migr_strip_blocks_resync(dev); | |
238c0a71 | 2680 | disks = imsm_num_data_members(dev, MAP_0); |
1e5c6983 | 2681 | blocks_per_unit = stripes_per_unit * migr_chunk * disks; |
7b1ab482 | 2682 | stripe = __le16_to_cpu(map->blocks_per_strip) * disks; |
1e5c6983 DW |
2683 | segment = blocks_per_unit / stripe; |
2684 | block_rel = blocks_per_unit - segment * stripe; | |
2685 | parity_depth = parity_segment_depth(dev); | |
2686 | block_map = map_migr_block(dev, block_rel); | |
2687 | return block_map + parity_depth * segment; | |
2688 | } | |
2689 | case MIGR_REBUILD: { | |
2690 | __u32 stripes_per_unit; | |
2691 | __u32 migr_chunk; | |
2692 | ||
2693 | stripes_per_unit = num_stripes_per_unit_rebuild(dev); | |
2694 | migr_chunk = migr_strip_blocks_rebuild(dev); | |
2695 | return migr_chunk * stripes_per_unit; | |
2696 | } | |
1e5c6983 DW |
2697 | case MIGR_STATE_CHANGE: |
2698 | default: | |
2699 | return 0; | |
2700 | } | |
2701 | } | |
2702 | ||
c2c087e6 DW |
2703 | static int imsm_level_to_layout(int level) |
2704 | { | |
2705 | switch (level) { | |
2706 | case 0: | |
2707 | case 1: | |
2708 | return 0; | |
2709 | case 5: | |
2710 | case 6: | |
a380c027 | 2711 | return ALGORITHM_LEFT_ASYMMETRIC; |
c2c087e6 | 2712 | case 10: |
c92a2527 | 2713 | return 0x102; |
c2c087e6 | 2714 | } |
a18a888e | 2715 | return UnSet; |
c2c087e6 DW |
2716 | } |
2717 | ||
8e59f3d8 AK |
2718 | /******************************************************************************* |
2719 | * Function: read_imsm_migr_rec | |
2720 | * Description: Function reads imsm migration record from last sector of disk | |
2721 | * Parameters: | |
2722 | * fd : disk descriptor | |
2723 | * super : metadata info | |
2724 | * Returns: | |
2725 | * 0 : success, | |
2726 | * -1 : fail | |
2727 | ******************************************************************************/ | |
2728 | static int read_imsm_migr_rec(int fd, struct intel_super *super) | |
2729 | { | |
2730 | int ret_val = -1; | |
de44e46f | 2731 | unsigned int sector_size = super->sector_size; |
8e59f3d8 AK |
2732 | unsigned long long dsize; |
2733 | ||
2734 | get_dev_size(fd, NULL, &dsize); | |
de44e46f PB |
2735 | if (lseek64(fd, dsize - (sector_size*MIGR_REC_SECTOR_POSITION), |
2736 | SEEK_SET) < 0) { | |
e7b84f9d N |
2737 | pr_err("Cannot seek to anchor block: %s\n", |
2738 | strerror(errno)); | |
8e59f3d8 AK |
2739 | goto out; |
2740 | } | |
de44e46f PB |
2741 | if (read(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 read migr record block: %s\n", |
2745 | strerror(errno)); | |
8e59f3d8 AK |
2746 | goto out; |
2747 | } | |
2748 | ret_val = 0; | |
de44e46f PB |
2749 | if (sector_size == 4096) |
2750 | convert_from_4k_imsm_migr_rec(super); | |
8e59f3d8 AK |
2751 | |
2752 | out: | |
2753 | return ret_val; | |
2754 | } | |
2755 | ||
3136abe5 AK |
2756 | static struct imsm_dev *imsm_get_device_during_migration( |
2757 | struct intel_super *super) | |
2758 | { | |
2759 | ||
2760 | struct intel_dev *dv; | |
2761 | ||
2762 | for (dv = super->devlist; dv; dv = dv->next) { | |
2763 | if (is_gen_migration(dv->dev)) | |
2764 | return dv->dev; | |
2765 | } | |
2766 | return NULL; | |
2767 | } | |
2768 | ||
8e59f3d8 AK |
2769 | /******************************************************************************* |
2770 | * Function: load_imsm_migr_rec | |
2771 | * Description: Function reads imsm migration record (it is stored at the last | |
2772 | * sector of disk) | |
2773 | * Parameters: | |
2774 | * super : imsm internal array info | |
2775 | * info : general array info | |
2776 | * Returns: | |
2777 | * 0 : success | |
2778 | * -1 : fail | |
4c965cc9 | 2779 | * -2 : no migration in progress |
8e59f3d8 AK |
2780 | ******************************************************************************/ |
2781 | static int load_imsm_migr_rec(struct intel_super *super, struct mdinfo *info) | |
2782 | { | |
2783 | struct mdinfo *sd; | |
594dc1b8 | 2784 | struct dl *dl; |
8e59f3d8 AK |
2785 | char nm[30]; |
2786 | int retval = -1; | |
2787 | int fd = -1; | |
3136abe5 | 2788 | struct imsm_dev *dev; |
594dc1b8 | 2789 | struct imsm_map *map; |
b4ab44d8 | 2790 | int slot = -1; |
3136abe5 AK |
2791 | |
2792 | /* find map under migration */ | |
2793 | dev = imsm_get_device_during_migration(super); | |
2794 | /* nothing to load,no migration in progress? | |
2795 | */ | |
2796 | if (dev == NULL) | |
4c965cc9 | 2797 | return -2; |
8e59f3d8 AK |
2798 | |
2799 | if (info) { | |
2800 | for (sd = info->devs ; sd ; sd = sd->next) { | |
2801 | /* read only from one of the first two slots */ | |
12fe93e9 TM |
2802 | if ((sd->disk.raid_disk < 0) || |
2803 | (sd->disk.raid_disk > 1)) | |
8e59f3d8 | 2804 | continue; |
3136abe5 | 2805 | |
8e59f3d8 AK |
2806 | sprintf(nm, "%d:%d", sd->disk.major, sd->disk.minor); |
2807 | fd = dev_open(nm, O_RDONLY); | |
2808 | if (fd >= 0) | |
2809 | break; | |
2810 | } | |
2811 | } | |
2812 | if (fd < 0) { | |
12fe93e9 | 2813 | map = get_imsm_map(dev, MAP_0); |
8e59f3d8 | 2814 | for (dl = super->disks; dl; dl = dl->next) { |
3136abe5 AK |
2815 | /* skip spare and failed disks |
2816 | */ | |
2817 | if (dl->index < 0) | |
2818 | continue; | |
8e59f3d8 | 2819 | /* read only from one of the first two slots */ |
3136abe5 AK |
2820 | if (map) |
2821 | slot = get_imsm_disk_slot(map, dl->index); | |
089f9d79 | 2822 | if (map == NULL || slot > 1 || slot < 0) |
8e59f3d8 AK |
2823 | continue; |
2824 | sprintf(nm, "%d:%d", dl->major, dl->minor); | |
2825 | fd = dev_open(nm, O_RDONLY); | |
2826 | if (fd >= 0) | |
2827 | break; | |
2828 | } | |
2829 | } | |
2830 | if (fd < 0) | |
2831 | goto out; | |
2832 | retval = read_imsm_migr_rec(fd, super); | |
2833 | ||
2834 | out: | |
2835 | if (fd >= 0) | |
2836 | close(fd); | |
2837 | return retval; | |
2838 | } | |
2839 | ||
9e2d750d | 2840 | #ifndef MDASSEMBLE |
c17608ea AK |
2841 | /******************************************************************************* |
2842 | * function: imsm_create_metadata_checkpoint_update | |
2843 | * Description: It creates update for checkpoint change. | |
2844 | * Parameters: | |
2845 | * super : imsm internal array info | |
2846 | * u : pointer to prepared update | |
2847 | * Returns: | |
2848 | * Uptate length. | |
2849 | * If length is equal to 0, input pointer u contains no update | |
2850 | ******************************************************************************/ | |
2851 | static int imsm_create_metadata_checkpoint_update( | |
2852 | struct intel_super *super, | |
2853 | struct imsm_update_general_migration_checkpoint **u) | |
2854 | { | |
2855 | ||
2856 | int update_memory_size = 0; | |
2857 | ||
1ade5cc1 | 2858 | dprintf("(enter)\n"); |
c17608ea AK |
2859 | |
2860 | if (u == NULL) | |
2861 | return 0; | |
2862 | *u = NULL; | |
2863 | ||
2864 | /* size of all update data without anchor */ | |
2865 | update_memory_size = | |
2866 | sizeof(struct imsm_update_general_migration_checkpoint); | |
2867 | ||
503975b9 | 2868 | *u = xcalloc(1, update_memory_size); |
c17608ea | 2869 | if (*u == NULL) { |
1ade5cc1 | 2870 | dprintf("error: cannot get memory\n"); |
c17608ea AK |
2871 | return 0; |
2872 | } | |
2873 | (*u)->type = update_general_migration_checkpoint; | |
2874 | (*u)->curr_migr_unit = __le32_to_cpu(super->migr_rec->curr_migr_unit); | |
1ade5cc1 | 2875 | dprintf("prepared for %u\n", (*u)->curr_migr_unit); |
c17608ea AK |
2876 | |
2877 | return update_memory_size; | |
2878 | } | |
2879 | ||
c17608ea AK |
2880 | static void imsm_update_metadata_locally(struct supertype *st, |
2881 | void *buf, int len); | |
2882 | ||
687629c2 AK |
2883 | /******************************************************************************* |
2884 | * Function: write_imsm_migr_rec | |
2885 | * Description: Function writes imsm migration record | |
2886 | * (at the last sector of disk) | |
2887 | * Parameters: | |
2888 | * super : imsm internal array info | |
2889 | * Returns: | |
2890 | * 0 : success | |
2891 | * -1 : if fail | |
2892 | ******************************************************************************/ | |
2893 | static int write_imsm_migr_rec(struct supertype *st) | |
2894 | { | |
2895 | struct intel_super *super = st->sb; | |
de44e46f | 2896 | unsigned int sector_size = super->sector_size; |
687629c2 AK |
2897 | unsigned long long dsize; |
2898 | char nm[30]; | |
2899 | int fd = -1; | |
2900 | int retval = -1; | |
2901 | struct dl *sd; | |
c17608ea AK |
2902 | int len; |
2903 | struct imsm_update_general_migration_checkpoint *u; | |
3136abe5 | 2904 | struct imsm_dev *dev; |
594dc1b8 | 2905 | struct imsm_map *map; |
3136abe5 AK |
2906 | |
2907 | /* find map under migration */ | |
2908 | dev = imsm_get_device_during_migration(super); | |
2909 | /* if no migration, write buffer anyway to clear migr_record | |
2910 | * on disk based on first available device | |
2911 | */ | |
2912 | if (dev == NULL) | |
2913 | dev = get_imsm_dev(super, super->current_vol < 0 ? 0 : | |
2914 | super->current_vol); | |
2915 | ||
44bfe6df | 2916 | map = get_imsm_map(dev, MAP_0); |
687629c2 | 2917 | |
de44e46f PB |
2918 | if (sector_size == 4096) |
2919 | convert_to_4k_imsm_migr_rec(super); | |
687629c2 | 2920 | for (sd = super->disks ; sd ; sd = sd->next) { |
b4ab44d8 | 2921 | int slot = -1; |
3136abe5 AK |
2922 | |
2923 | /* skip failed and spare devices */ | |
2924 | if (sd->index < 0) | |
2925 | continue; | |
687629c2 | 2926 | /* write to 2 first slots only */ |
3136abe5 AK |
2927 | if (map) |
2928 | slot = get_imsm_disk_slot(map, sd->index); | |
089f9d79 | 2929 | if (map == NULL || slot > 1 || slot < 0) |
687629c2 | 2930 | continue; |
3136abe5 | 2931 | |
687629c2 AK |
2932 | sprintf(nm, "%d:%d", sd->major, sd->minor); |
2933 | fd = dev_open(nm, O_RDWR); | |
2934 | if (fd < 0) | |
2935 | continue; | |
2936 | get_dev_size(fd, NULL, &dsize); | |
de44e46f PB |
2937 | if (lseek64(fd, dsize - (MIGR_REC_SECTOR_POSITION*sector_size), |
2938 | SEEK_SET) < 0) { | |
e7b84f9d N |
2939 | pr_err("Cannot seek to anchor block: %s\n", |
2940 | strerror(errno)); | |
687629c2 AK |
2941 | goto out; |
2942 | } | |
de44e46f PB |
2943 | if (write(fd, super->migr_rec_buf, |
2944 | MIGR_REC_BUF_SECTORS*sector_size) != | |
2945 | MIGR_REC_BUF_SECTORS*sector_size) { | |
e7b84f9d N |
2946 | pr_err("Cannot write migr record block: %s\n", |
2947 | strerror(errno)); | |
687629c2 AK |
2948 | goto out; |
2949 | } | |
2950 | close(fd); | |
2951 | fd = -1; | |
2952 | } | |
de44e46f PB |
2953 | if (sector_size == 4096) |
2954 | convert_from_4k_imsm_migr_rec(super); | |
c17608ea AK |
2955 | /* update checkpoint information in metadata */ |
2956 | len = imsm_create_metadata_checkpoint_update(super, &u); | |
c17608ea AK |
2957 | if (len <= 0) { |
2958 | dprintf("imsm: Cannot prepare update\n"); | |
2959 | goto out; | |
2960 | } | |
2961 | /* update metadata locally */ | |
2962 | imsm_update_metadata_locally(st, u, len); | |
2963 | /* and possibly remotely */ | |
2964 | if (st->update_tail) { | |
2965 | append_metadata_update(st, u, len); | |
2966 | /* during reshape we do all work inside metadata handler | |
2967 | * manage_reshape(), so metadata update has to be triggered | |
2968 | * insida it | |
2969 | */ | |
2970 | flush_metadata_updates(st); | |
2971 | st->update_tail = &st->updates; | |
2972 | } else | |
2973 | free(u); | |
687629c2 AK |
2974 | |
2975 | retval = 0; | |
2976 | out: | |
2977 | if (fd >= 0) | |
2978 | close(fd); | |
2979 | return retval; | |
2980 | } | |
9e2d750d | 2981 | #endif /* MDASSEMBLE */ |
687629c2 | 2982 | |
e2962bfc AK |
2983 | /* spare/missing disks activations are not allowe when |
2984 | * array/container performs reshape operation, because | |
2985 | * all arrays in container works on the same disks set | |
2986 | */ | |
2987 | int imsm_reshape_blocks_arrays_changes(struct intel_super *super) | |
2988 | { | |
2989 | int rv = 0; | |
2990 | struct intel_dev *i_dev; | |
2991 | struct imsm_dev *dev; | |
2992 | ||
2993 | /* check whole container | |
2994 | */ | |
2995 | for (i_dev = super->devlist; i_dev; i_dev = i_dev->next) { | |
2996 | dev = i_dev->dev; | |
3ad25638 | 2997 | if (is_gen_migration(dev)) { |
e2962bfc AK |
2998 | /* No repair during any migration in container |
2999 | */ | |
3000 | rv = 1; | |
3001 | break; | |
3002 | } | |
3003 | } | |
3004 | return rv; | |
3005 | } | |
c41e00b2 AK |
3006 | static unsigned long long imsm_component_size_aligment_check(int level, |
3007 | int chunk_size, | |
f36a9ecd | 3008 | unsigned int sector_size, |
c41e00b2 AK |
3009 | unsigned long long component_size) |
3010 | { | |
3011 | unsigned int component_size_alligment; | |
3012 | ||
3013 | /* check component size aligment | |
3014 | */ | |
f36a9ecd | 3015 | component_size_alligment = component_size % (chunk_size/sector_size); |
c41e00b2 | 3016 | |
1ade5cc1 | 3017 | dprintf("(Level: %i, chunk_size = %i, component_size = %llu), component_size_alligment = %u\n", |
c41e00b2 AK |
3018 | level, chunk_size, component_size, |
3019 | component_size_alligment); | |
3020 | ||
3021 | if (component_size_alligment && (level != 1) && (level != UnSet)) { | |
3022 | dprintf("imsm: reported component size alligned from %llu ", | |
3023 | component_size); | |
3024 | component_size -= component_size_alligment; | |
1ade5cc1 | 3025 | dprintf_cont("to %llu (%i).\n", |
c41e00b2 AK |
3026 | component_size, component_size_alligment); |
3027 | } | |
3028 | ||
3029 | return component_size; | |
3030 | } | |
e2962bfc | 3031 | |
a5d85af7 | 3032 | static void getinfo_super_imsm_volume(struct supertype *st, struct mdinfo *info, char *dmap) |
bf5a934a DW |
3033 | { |
3034 | struct intel_super *super = st->sb; | |
c47b0ff6 | 3035 | struct migr_record *migr_rec = super->migr_rec; |
949c47a0 | 3036 | struct imsm_dev *dev = get_imsm_dev(super, super->current_vol); |
238c0a71 AK |
3037 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
3038 | struct imsm_map *prev_map = get_imsm_map(dev, MAP_1); | |
b335e593 | 3039 | struct imsm_map *map_to_analyse = map; |
efb30e7f | 3040 | struct dl *dl; |
a5d85af7 | 3041 | int map_disks = info->array.raid_disks; |
bf5a934a | 3042 | |
95eeceeb | 3043 | memset(info, 0, sizeof(*info)); |
b335e593 AK |
3044 | if (prev_map) |
3045 | map_to_analyse = prev_map; | |
3046 | ||
ca0748fa | 3047 | dl = super->current_disk; |
9894ec0d | 3048 | |
bf5a934a | 3049 | info->container_member = super->current_vol; |
cd0430a1 | 3050 | info->array.raid_disks = map->num_members; |
b335e593 | 3051 | info->array.level = get_imsm_raid_level(map_to_analyse); |
bf5a934a DW |
3052 | info->array.layout = imsm_level_to_layout(info->array.level); |
3053 | info->array.md_minor = -1; | |
3054 | info->array.ctime = 0; | |
3055 | info->array.utime = 0; | |
b335e593 AK |
3056 | info->array.chunk_size = |
3057 | __le16_to_cpu(map_to_analyse->blocks_per_strip) << 9; | |
301406c9 | 3058 | info->array.state = !dev->vol.dirty; |
da9b4a62 DW |
3059 | info->custom_array_size = __le32_to_cpu(dev->size_high); |
3060 | info->custom_array_size <<= 32; | |
3061 | info->custom_array_size |= __le32_to_cpu(dev->size_low); | |
3ad25638 AK |
3062 | info->recovery_blocked = imsm_reshape_blocks_arrays_changes(st->sb); |
3063 | ||
3f510843 | 3064 | if (is_gen_migration(dev)) { |
3f83228a | 3065 | info->reshape_active = 1; |
b335e593 AK |
3066 | info->new_level = get_imsm_raid_level(map); |
3067 | info->new_layout = imsm_level_to_layout(info->new_level); | |
3068 | info->new_chunk = __le16_to_cpu(map->blocks_per_strip) << 9; | |
3f83228a | 3069 | info->delta_disks = map->num_members - prev_map->num_members; |
493f5dd6 N |
3070 | if (info->delta_disks) { |
3071 | /* this needs to be applied to every array | |
3072 | * in the container. | |
3073 | */ | |
81219e70 | 3074 | info->reshape_active = CONTAINER_RESHAPE; |
493f5dd6 | 3075 | } |
3f83228a N |
3076 | /* We shape information that we give to md might have to be |
3077 | * modify to cope with md's requirement for reshaping arrays. | |
3078 | * For example, when reshaping a RAID0, md requires it to be | |
3079 | * presented as a degraded RAID4. | |
3080 | * Also if a RAID0 is migrating to a RAID5 we need to specify | |
3081 | * the array as already being RAID5, but the 'before' layout | |
3082 | * is a RAID4-like layout. | |
3083 | */ | |
3084 | switch (info->array.level) { | |
3085 | case 0: | |
3086 | switch(info->new_level) { | |
3087 | case 0: | |
3088 | /* conversion is happening as RAID4 */ | |
3089 | info->array.level = 4; | |
3090 | info->array.raid_disks += 1; | |
3091 | break; | |
3092 | case 5: | |
3093 | /* conversion is happening as RAID5 */ | |
3094 | info->array.level = 5; | |
3095 | info->array.layout = ALGORITHM_PARITY_N; | |
3f83228a N |
3096 | info->delta_disks -= 1; |
3097 | break; | |
3098 | default: | |
3099 | /* FIXME error message */ | |
3100 | info->array.level = UnSet; | |
3101 | break; | |
3102 | } | |
3103 | break; | |
3104 | } | |
b335e593 AK |
3105 | } else { |
3106 | info->new_level = UnSet; | |
3107 | info->new_layout = UnSet; | |
3108 | info->new_chunk = info->array.chunk_size; | |
3f83228a | 3109 | info->delta_disks = 0; |
b335e593 | 3110 | } |
ca0748fa | 3111 | |
efb30e7f DW |
3112 | if (dl) { |
3113 | info->disk.major = dl->major; | |
3114 | info->disk.minor = dl->minor; | |
ca0748fa | 3115 | info->disk.number = dl->index; |
656b6b5a N |
3116 | info->disk.raid_disk = get_imsm_disk_slot(map_to_analyse, |
3117 | dl->index); | |
efb30e7f | 3118 | } |
bf5a934a | 3119 | |
5551b113 | 3120 | info->data_offset = pba_of_lba0(map_to_analyse); |
06fb291a PB |
3121 | |
3122 | if (info->array.level == 5) { | |
3123 | info->component_size = num_data_stripes(map_to_analyse) * | |
3124 | map_to_analyse->blocks_per_strip; | |
3125 | } else { | |
3126 | info->component_size = blocks_per_member(map_to_analyse); | |
3127 | } | |
139dae11 | 3128 | |
c41e00b2 AK |
3129 | info->component_size = imsm_component_size_aligment_check( |
3130 | info->array.level, | |
3131 | info->array.chunk_size, | |
f36a9ecd | 3132 | super->sector_size, |
c41e00b2 | 3133 | info->component_size); |
b12796be | 3134 | info->bb.supported = 0; |
139dae11 | 3135 | |
301406c9 | 3136 | memset(info->uuid, 0, sizeof(info->uuid)); |
921d9e16 | 3137 | info->recovery_start = MaxSector; |
bf5a934a | 3138 | |
d2e6d5d6 | 3139 | info->reshape_progress = 0; |
b6796ce1 | 3140 | info->resync_start = MaxSector; |
b9172665 AK |
3141 | if ((map_to_analyse->map_state == IMSM_T_STATE_UNINITIALIZED || |
3142 | dev->vol.dirty) && | |
3143 | imsm_reshape_blocks_arrays_changes(super) == 0) { | |
301406c9 | 3144 | info->resync_start = 0; |
b6796ce1 AK |
3145 | } |
3146 | if (dev->vol.migr_state) { | |
1e5c6983 DW |
3147 | switch (migr_type(dev)) { |
3148 | case MIGR_REPAIR: | |
3149 | case MIGR_INIT: { | |
c47b0ff6 AK |
3150 | __u64 blocks_per_unit = blocks_per_migr_unit(super, |
3151 | dev); | |
1e5c6983 DW |
3152 | __u64 units = __le32_to_cpu(dev->vol.curr_migr_unit); |
3153 | ||
3154 | info->resync_start = blocks_per_unit * units; | |
3155 | break; | |
3156 | } | |
d2e6d5d6 | 3157 | case MIGR_GEN_MIGR: { |
c47b0ff6 AK |
3158 | __u64 blocks_per_unit = blocks_per_migr_unit(super, |
3159 | dev); | |
3160 | __u64 units = __le32_to_cpu(migr_rec->curr_migr_unit); | |
04fa9523 AK |
3161 | unsigned long long array_blocks; |
3162 | int used_disks; | |
d2e6d5d6 | 3163 | |
befb629b AK |
3164 | if (__le32_to_cpu(migr_rec->ascending_migr) && |
3165 | (units < | |
3166 | (__le32_to_cpu(migr_rec->num_migr_units)-1)) && | |
3167 | (super->migr_rec->rec_status == | |
3168 | __cpu_to_le32(UNIT_SRC_IN_CP_AREA))) | |
3169 | units++; | |
3170 | ||
d2e6d5d6 | 3171 | info->reshape_progress = blocks_per_unit * units; |
6289d1e0 | 3172 | |
7a862a02 | 3173 | dprintf("IMSM: General Migration checkpoint : %llu (%llu) -> read reshape progress : %llu\n", |
19986c72 MB |
3174 | (unsigned long long)units, |
3175 | (unsigned long long)blocks_per_unit, | |
3176 | info->reshape_progress); | |
75156c46 | 3177 | |
238c0a71 | 3178 | used_disks = imsm_num_data_members(dev, MAP_1); |
75156c46 | 3179 | if (used_disks > 0) { |
5551b113 | 3180 | array_blocks = blocks_per_member(map) * |
75156c46 AK |
3181 | used_disks; |
3182 | /* round array size down to closest MB | |
3183 | */ | |
3184 | info->custom_array_size = (array_blocks | |
3185 | >> SECT_PER_MB_SHIFT) | |
3186 | << SECT_PER_MB_SHIFT; | |
3187 | } | |
d2e6d5d6 | 3188 | } |
1e5c6983 DW |
3189 | case MIGR_VERIFY: |
3190 | /* we could emulate the checkpointing of | |
3191 | * 'sync_action=check' migrations, but for now | |
3192 | * we just immediately complete them | |
3193 | */ | |
3194 | case MIGR_REBUILD: | |
3195 | /* this is handled by container_content_imsm() */ | |
1e5c6983 DW |
3196 | case MIGR_STATE_CHANGE: |
3197 | /* FIXME handle other migrations */ | |
3198 | default: | |
3199 | /* we are not dirty, so... */ | |
3200 | info->resync_start = MaxSector; | |
3201 | } | |
b6796ce1 | 3202 | } |
301406c9 DW |
3203 | |
3204 | strncpy(info->name, (char *) dev->volume, MAX_RAID_SERIAL_LEN); | |
3205 | info->name[MAX_RAID_SERIAL_LEN] = 0; | |
bf5a934a | 3206 | |
f35f2525 N |
3207 | info->array.major_version = -1; |
3208 | info->array.minor_version = -2; | |
4dd2df09 | 3209 | sprintf(info->text_version, "/%s/%d", st->container_devnm, info->container_member); |
a67dd8cc | 3210 | info->safe_mode_delay = 4000; /* 4 secs like the Matrix driver */ |
51006d85 | 3211 | uuid_from_super_imsm(st, info->uuid); |
a5d85af7 N |
3212 | |
3213 | if (dmap) { | |
3214 | int i, j; | |
3215 | for (i=0; i<map_disks; i++) { | |
3216 | dmap[i] = 0; | |
3217 | if (i < info->array.raid_disks) { | |
3218 | struct imsm_disk *dsk; | |
238c0a71 | 3219 | j = get_imsm_disk_idx(dev, i, MAP_X); |
a5d85af7 N |
3220 | dsk = get_imsm_disk(super, j); |
3221 | if (dsk && (dsk->status & CONFIGURED_DISK)) | |
3222 | dmap[i] = 1; | |
3223 | } | |
3224 | } | |
3225 | } | |
81ac8b4d | 3226 | } |
bf5a934a | 3227 | |
3b451610 AK |
3228 | static __u8 imsm_check_degraded(struct intel_super *super, struct imsm_dev *dev, |
3229 | int failed, int look_in_map); | |
3230 | ||
3231 | static int imsm_count_failed(struct intel_super *super, struct imsm_dev *dev, | |
3232 | int look_in_map); | |
3233 | ||
b4ab44d8 | 3234 | #ifndef MDASSEMBLE |
3b451610 AK |
3235 | static void manage_second_map(struct intel_super *super, struct imsm_dev *dev) |
3236 | { | |
3237 | if (is_gen_migration(dev)) { | |
3238 | int failed; | |
3239 | __u8 map_state; | |
3240 | struct imsm_map *map2 = get_imsm_map(dev, MAP_1); | |
3241 | ||
3242 | failed = imsm_count_failed(super, dev, MAP_1); | |
238c0a71 | 3243 | map_state = imsm_check_degraded(super, dev, failed, MAP_1); |
3b451610 AK |
3244 | if (map2->map_state != map_state) { |
3245 | map2->map_state = map_state; | |
3246 | super->updates_pending++; | |
3247 | } | |
3248 | } | |
3249 | } | |
b4ab44d8 | 3250 | #endif |
97b4d0e9 DW |
3251 | |
3252 | static struct imsm_disk *get_imsm_missing(struct intel_super *super, __u8 index) | |
3253 | { | |
3254 | struct dl *d; | |
3255 | ||
3256 | for (d = super->missing; d; d = d->next) | |
3257 | if (d->index == index) | |
3258 | return &d->disk; | |
3259 | return NULL; | |
3260 | } | |
3261 | ||
a5d85af7 | 3262 | static void getinfo_super_imsm(struct supertype *st, struct mdinfo *info, char *map) |
4f5bc454 DW |
3263 | { |
3264 | struct intel_super *super = st->sb; | |
4f5bc454 | 3265 | struct imsm_disk *disk; |
a5d85af7 | 3266 | int map_disks = info->array.raid_disks; |
ab3cb6b3 N |
3267 | int max_enough = -1; |
3268 | int i; | |
3269 | struct imsm_super *mpb; | |
4f5bc454 | 3270 | |
bf5a934a | 3271 | if (super->current_vol >= 0) { |
a5d85af7 | 3272 | getinfo_super_imsm_volume(st, info, map); |
bf5a934a DW |
3273 | return; |
3274 | } | |
95eeceeb | 3275 | memset(info, 0, sizeof(*info)); |
d23fe947 DW |
3276 | |
3277 | /* Set raid_disks to zero so that Assemble will always pull in valid | |
3278 | * spares | |
3279 | */ | |
3280 | info->array.raid_disks = 0; | |
cdddbdbc DW |
3281 | info->array.level = LEVEL_CONTAINER; |
3282 | info->array.layout = 0; | |
3283 | info->array.md_minor = -1; | |
1011e834 | 3284 | info->array.ctime = 0; /* N/A for imsm */ |
cdddbdbc DW |
3285 | info->array.utime = 0; |
3286 | info->array.chunk_size = 0; | |
3287 | ||
3288 | info->disk.major = 0; | |
3289 | info->disk.minor = 0; | |
cdddbdbc | 3290 | info->disk.raid_disk = -1; |
c2c087e6 | 3291 | info->reshape_active = 0; |
f35f2525 N |
3292 | info->array.major_version = -1; |
3293 | info->array.minor_version = -2; | |
c2c087e6 | 3294 | strcpy(info->text_version, "imsm"); |
a67dd8cc | 3295 | info->safe_mode_delay = 0; |
c2c087e6 DW |
3296 | info->disk.number = -1; |
3297 | info->disk.state = 0; | |
c5afc314 | 3298 | info->name[0] = 0; |
921d9e16 | 3299 | info->recovery_start = MaxSector; |
3ad25638 | 3300 | info->recovery_blocked = imsm_reshape_blocks_arrays_changes(st->sb); |
b12796be | 3301 | info->bb.supported = 0; |
c2c087e6 | 3302 | |
97b4d0e9 | 3303 | /* do we have the all the insync disks that we expect? */ |
ab3cb6b3 | 3304 | mpb = super->anchor; |
97b4d0e9 | 3305 | |
ab3cb6b3 N |
3306 | for (i = 0; i < mpb->num_raid_devs; i++) { |
3307 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
3308 | int failed, enough, j, missing = 0; | |
3309 | struct imsm_map *map; | |
3310 | __u8 state; | |
97b4d0e9 | 3311 | |
3b451610 AK |
3312 | failed = imsm_count_failed(super, dev, MAP_0); |
3313 | state = imsm_check_degraded(super, dev, failed, MAP_0); | |
238c0a71 | 3314 | map = get_imsm_map(dev, MAP_0); |
ab3cb6b3 N |
3315 | |
3316 | /* any newly missing disks? | |
3317 | * (catches single-degraded vs double-degraded) | |
3318 | */ | |
3319 | for (j = 0; j < map->num_members; j++) { | |
238c0a71 | 3320 | __u32 ord = get_imsm_ord_tbl_ent(dev, j, MAP_0); |
ab3cb6b3 N |
3321 | __u32 idx = ord_to_idx(ord); |
3322 | ||
3323 | if (!(ord & IMSM_ORD_REBUILD) && | |
3324 | get_imsm_missing(super, idx)) { | |
3325 | missing = 1; | |
3326 | break; | |
3327 | } | |
97b4d0e9 | 3328 | } |
ab3cb6b3 N |
3329 | |
3330 | if (state == IMSM_T_STATE_FAILED) | |
3331 | enough = -1; | |
3332 | else if (state == IMSM_T_STATE_DEGRADED && | |
3333 | (state != map->map_state || missing)) | |
3334 | enough = 0; | |
3335 | else /* we're normal, or already degraded */ | |
3336 | enough = 1; | |
d2bde6d3 AK |
3337 | if (is_gen_migration(dev) && missing) { |
3338 | /* during general migration we need all disks | |
3339 | * that process is running on. | |
3340 | * No new missing disk is allowed. | |
3341 | */ | |
3342 | max_enough = -1; | |
3343 | enough = -1; | |
3344 | /* no more checks necessary | |
3345 | */ | |
3346 | break; | |
3347 | } | |
ab3cb6b3 N |
3348 | /* in the missing/failed disk case check to see |
3349 | * if at least one array is runnable | |
3350 | */ | |
3351 | max_enough = max(max_enough, enough); | |
3352 | } | |
1ade5cc1 | 3353 | dprintf("enough: %d\n", max_enough); |
ab3cb6b3 | 3354 | info->container_enough = max_enough; |
97b4d0e9 | 3355 | |
4a04ec6c | 3356 | if (super->disks) { |
14e8215b DW |
3357 | __u32 reserved = imsm_reserved_sectors(super, super->disks); |
3358 | ||
b9f594fe | 3359 | disk = &super->disks->disk; |
5551b113 | 3360 | info->data_offset = total_blocks(&super->disks->disk) - reserved; |
14e8215b | 3361 | info->component_size = reserved; |
25ed7e59 | 3362 | info->disk.state = is_configured(disk) ? (1 << MD_DISK_ACTIVE) : 0; |
df474657 DW |
3363 | /* we don't change info->disk.raid_disk here because |
3364 | * this state will be finalized in mdmon after we have | |
3365 | * found the 'most fresh' version of the metadata | |
3366 | */ | |
25ed7e59 DW |
3367 | info->disk.state |= is_failed(disk) ? (1 << MD_DISK_FAULTY) : 0; |
3368 | info->disk.state |= is_spare(disk) ? 0 : (1 << MD_DISK_SYNC); | |
cdddbdbc | 3369 | } |
a575e2a7 DW |
3370 | |
3371 | /* only call uuid_from_super_imsm when this disk is part of a populated container, | |
3372 | * ->compare_super may have updated the 'num_raid_devs' field for spares | |
3373 | */ | |
3374 | if (info->disk.state & (1 << MD_DISK_SYNC) || super->anchor->num_raid_devs) | |
36ba7d48 | 3375 | uuid_from_super_imsm(st, info->uuid); |
22e263f6 AC |
3376 | else |
3377 | memcpy(info->uuid, uuid_zero, sizeof(uuid_zero)); | |
a5d85af7 N |
3378 | |
3379 | /* I don't know how to compute 'map' on imsm, so use safe default */ | |
3380 | if (map) { | |
3381 | int i; | |
3382 | for (i = 0; i < map_disks; i++) | |
3383 | map[i] = 1; | |
3384 | } | |
3385 | ||
cdddbdbc DW |
3386 | } |
3387 | ||
5c4cd5da AC |
3388 | /* allocates memory and fills disk in mdinfo structure |
3389 | * for each disk in array */ | |
3390 | struct mdinfo *getinfo_super_disks_imsm(struct supertype *st) | |
3391 | { | |
594dc1b8 | 3392 | struct mdinfo *mddev; |
5c4cd5da AC |
3393 | struct intel_super *super = st->sb; |
3394 | struct imsm_disk *disk; | |
3395 | int count = 0; | |
3396 | struct dl *dl; | |
3397 | if (!super || !super->disks) | |
3398 | return NULL; | |
3399 | dl = super->disks; | |
503975b9 | 3400 | mddev = xcalloc(1, sizeof(*mddev)); |
5c4cd5da AC |
3401 | while (dl) { |
3402 | struct mdinfo *tmp; | |
3403 | disk = &dl->disk; | |
503975b9 | 3404 | tmp = xcalloc(1, sizeof(*tmp)); |
5c4cd5da AC |
3405 | if (mddev->devs) |
3406 | tmp->next = mddev->devs; | |
3407 | mddev->devs = tmp; | |
3408 | tmp->disk.number = count++; | |
3409 | tmp->disk.major = dl->major; | |
3410 | tmp->disk.minor = dl->minor; | |
3411 | tmp->disk.state = is_configured(disk) ? | |
3412 | (1 << MD_DISK_ACTIVE) : 0; | |
3413 | tmp->disk.state |= is_failed(disk) ? (1 << MD_DISK_FAULTY) : 0; | |
3414 | tmp->disk.state |= is_spare(disk) ? 0 : (1 << MD_DISK_SYNC); | |
3415 | tmp->disk.raid_disk = -1; | |
3416 | dl = dl->next; | |
3417 | } | |
3418 | return mddev; | |
3419 | } | |
3420 | ||
cdddbdbc DW |
3421 | static int update_super_imsm(struct supertype *st, struct mdinfo *info, |
3422 | char *update, char *devname, int verbose, | |
3423 | int uuid_set, char *homehost) | |
3424 | { | |
f352c545 DW |
3425 | /* For 'assemble' and 'force' we need to return non-zero if any |
3426 | * change was made. For others, the return value is ignored. | |
3427 | * Update options are: | |
3428 | * force-one : This device looks a bit old but needs to be included, | |
3429 | * update age info appropriately. | |
3430 | * assemble: clear any 'faulty' flag to allow this device to | |
3431 | * be assembled. | |
3432 | * force-array: Array is degraded but being forced, mark it clean | |
3433 | * if that will be needed to assemble it. | |
3434 | * | |
3435 | * newdev: not used ???? | |
3436 | * grow: Array has gained a new device - this is currently for | |
3437 | * linear only | |
3438 | * resync: mark as dirty so a resync will happen. | |
3439 | * name: update the name - preserving the homehost | |
6e46bf34 | 3440 | * uuid: Change the uuid of the array to match watch is given |
f352c545 DW |
3441 | * |
3442 | * Following are not relevant for this imsm: | |
3443 | * sparc2.2 : update from old dodgey metadata | |
3444 | * super-minor: change the preferred_minor number | |
3445 | * summaries: update redundant counters. | |
f352c545 DW |
3446 | * homehost: update the recorded homehost |
3447 | * _reshape_progress: record new reshape_progress position. | |
3448 | */ | |
6e46bf34 DW |
3449 | int rv = 1; |
3450 | struct intel_super *super = st->sb; | |
3451 | struct imsm_super *mpb; | |
f352c545 | 3452 | |
6e46bf34 DW |
3453 | /* we can only update container info */ |
3454 | if (!super || super->current_vol >= 0 || !super->anchor) | |
3455 | return 1; | |
3456 | ||
3457 | mpb = super->anchor; | |
3458 | ||
81a5b4f5 N |
3459 | if (strcmp(update, "uuid") == 0) { |
3460 | /* We take this to mean that the family_num should be updated. | |
3461 | * However that is much smaller than the uuid so we cannot really | |
3462 | * allow an explicit uuid to be given. And it is hard to reliably | |
3463 | * know if one was. | |
3464 | * So if !uuid_set we know the current uuid is random and just used | |
3465 | * the first 'int' and copy it to the other 3 positions. | |
3466 | * Otherwise we require the 4 'int's to be the same as would be the | |
3467 | * case if we are using a random uuid. So an explicit uuid will be | |
3468 | * accepted as long as all for ints are the same... which shouldn't hurt | |
6e46bf34 | 3469 | */ |
81a5b4f5 N |
3470 | if (!uuid_set) { |
3471 | info->uuid[1] = info->uuid[2] = info->uuid[3] = info->uuid[0]; | |
6e46bf34 | 3472 | rv = 0; |
81a5b4f5 N |
3473 | } else { |
3474 | if (info->uuid[0] != info->uuid[1] || | |
3475 | info->uuid[1] != info->uuid[2] || | |
3476 | info->uuid[2] != info->uuid[3]) | |
3477 | rv = -1; | |
3478 | else | |
3479 | rv = 0; | |
6e46bf34 | 3480 | } |
81a5b4f5 N |
3481 | if (rv == 0) |
3482 | mpb->orig_family_num = info->uuid[0]; | |
6e46bf34 DW |
3483 | } else if (strcmp(update, "assemble") == 0) |
3484 | rv = 0; | |
3485 | else | |
1e2b2765 | 3486 | rv = -1; |
f352c545 | 3487 | |
6e46bf34 DW |
3488 | /* successful update? recompute checksum */ |
3489 | if (rv == 0) | |
3490 | mpb->check_sum = __le32_to_cpu(__gen_imsm_checksum(mpb)); | |
f352c545 DW |
3491 | |
3492 | return rv; | |
cdddbdbc DW |
3493 | } |
3494 | ||
c2c087e6 | 3495 | static size_t disks_to_mpb_size(int disks) |
cdddbdbc | 3496 | { |
c2c087e6 | 3497 | size_t size; |
cdddbdbc | 3498 | |
c2c087e6 DW |
3499 | size = sizeof(struct imsm_super); |
3500 | size += (disks - 1) * sizeof(struct imsm_disk); | |
3501 | size += 2 * sizeof(struct imsm_dev); | |
3502 | /* up to 2 maps per raid device (-2 for imsm_maps in imsm_dev */ | |
3503 | size += (4 - 2) * sizeof(struct imsm_map); | |
3504 | /* 4 possible disk_ord_tbl's */ | |
3505 | size += 4 * (disks - 1) * sizeof(__u32); | |
bbab0940 TM |
3506 | /* maximum bbm log */ |
3507 | size += sizeof(struct bbm_log); | |
c2c087e6 DW |
3508 | |
3509 | return size; | |
3510 | } | |
3511 | ||
387fcd59 N |
3512 | static __u64 avail_size_imsm(struct supertype *st, __u64 devsize, |
3513 | unsigned long long data_offset) | |
c2c087e6 DW |
3514 | { |
3515 | if (devsize < (MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS)) | |
3516 | return 0; | |
3517 | ||
3518 | return devsize - (MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS); | |
cdddbdbc DW |
3519 | } |
3520 | ||
ba2de7ba DW |
3521 | static void free_devlist(struct intel_super *super) |
3522 | { | |
3523 | struct intel_dev *dv; | |
3524 | ||
3525 | while (super->devlist) { | |
3526 | dv = super->devlist->next; | |
3527 | free(super->devlist->dev); | |
3528 | free(super->devlist); | |
3529 | super->devlist = dv; | |
3530 | } | |
3531 | } | |
3532 | ||
3533 | static void imsm_copy_dev(struct imsm_dev *dest, struct imsm_dev *src) | |
3534 | { | |
3535 | memcpy(dest, src, sizeof_imsm_dev(src, 0)); | |
3536 | } | |
3537 | ||
cdddbdbc DW |
3538 | static int compare_super_imsm(struct supertype *st, struct supertype *tst) |
3539 | { | |
3540 | /* | |
3541 | * return: | |
3542 | * 0 same, or first was empty, and second was copied | |
3543 | * 1 second had wrong number | |
3544 | * 2 wrong uuid | |
3545 | * 3 wrong other info | |
3546 | */ | |
3547 | struct intel_super *first = st->sb; | |
3548 | struct intel_super *sec = tst->sb; | |
3549 | ||
5d500228 N |
3550 | if (!first) { |
3551 | st->sb = tst->sb; | |
3552 | tst->sb = NULL; | |
3553 | return 0; | |
3554 | } | |
8603ea6f LM |
3555 | /* in platform dependent environment test if the disks |
3556 | * use the same Intel hba | |
cb8f6859 | 3557 | * If not on Intel hba at all, allow anything. |
8603ea6f | 3558 | */ |
6b781d33 AP |
3559 | if (!check_env("IMSM_NO_PLATFORM") && first->hba && sec->hba) { |
3560 | if (first->hba->type != sec->hba->type) { | |
8603ea6f | 3561 | fprintf(stderr, |
6b781d33 AP |
3562 | "HBAs of devices do not match %s != %s\n", |
3563 | get_sys_dev_type(first->hba->type), | |
3564 | get_sys_dev_type(sec->hba->type)); | |
3565 | return 3; | |
3566 | } | |
3567 | if (first->orom != sec->orom) { | |
3568 | fprintf(stderr, | |
3569 | "HBAs of devices do not match %s != %s\n", | |
3570 | first->hba->pci_id, sec->hba->pci_id); | |
8603ea6f LM |
3571 | return 3; |
3572 | } | |
3573 | } | |
cdddbdbc | 3574 | |
d23fe947 DW |
3575 | /* if an anchor does not have num_raid_devs set then it is a free |
3576 | * floating spare | |
3577 | */ | |
3578 | if (first->anchor->num_raid_devs > 0 && | |
3579 | sec->anchor->num_raid_devs > 0) { | |
a2b97981 DW |
3580 | /* Determine if these disks might ever have been |
3581 | * related. Further disambiguation can only take place | |
3582 | * in load_super_imsm_all | |
3583 | */ | |
3584 | __u32 first_family = first->anchor->orig_family_num; | |
3585 | __u32 sec_family = sec->anchor->orig_family_num; | |
3586 | ||
f796af5d DW |
3587 | if (memcmp(first->anchor->sig, sec->anchor->sig, |
3588 | MAX_SIGNATURE_LENGTH) != 0) | |
3589 | return 3; | |
3590 | ||
a2b97981 DW |
3591 | if (first_family == 0) |
3592 | first_family = first->anchor->family_num; | |
3593 | if (sec_family == 0) | |
3594 | sec_family = sec->anchor->family_num; | |
3595 | ||
3596 | if (first_family != sec_family) | |
d23fe947 | 3597 | return 3; |
f796af5d | 3598 | |
d23fe947 | 3599 | } |
cdddbdbc | 3600 | |
3e372e5a DW |
3601 | /* if 'first' is a spare promote it to a populated mpb with sec's |
3602 | * family number | |
3603 | */ | |
3604 | if (first->anchor->num_raid_devs == 0 && | |
3605 | sec->anchor->num_raid_devs > 0) { | |
78d30f94 | 3606 | int i; |
ba2de7ba DW |
3607 | struct intel_dev *dv; |
3608 | struct imsm_dev *dev; | |
78d30f94 DW |
3609 | |
3610 | /* we need to copy raid device info from sec if an allocation | |
3611 | * fails here we don't associate the spare | |
3612 | */ | |
3613 | for (i = 0; i < sec->anchor->num_raid_devs; i++) { | |
503975b9 N |
3614 | dv = xmalloc(sizeof(*dv)); |
3615 | dev = xmalloc(sizeof_imsm_dev(get_imsm_dev(sec, i), 1)); | |
ba2de7ba DW |
3616 | dv->dev = dev; |
3617 | dv->index = i; | |
3618 | dv->next = first->devlist; | |
3619 | first->devlist = dv; | |
78d30f94 | 3620 | } |
709743c5 | 3621 | if (i < sec->anchor->num_raid_devs) { |
ba2de7ba DW |
3622 | /* allocation failure */ |
3623 | free_devlist(first); | |
e12b3daa | 3624 | pr_err("imsm: failed to associate spare\n"); |
ba2de7ba | 3625 | return 3; |
78d30f94 | 3626 | } |
3e372e5a | 3627 | first->anchor->num_raid_devs = sec->anchor->num_raid_devs; |
148acb7b | 3628 | first->anchor->orig_family_num = sec->anchor->orig_family_num; |
3e372e5a | 3629 | first->anchor->family_num = sec->anchor->family_num; |
ac6449be | 3630 | memcpy(first->anchor->sig, sec->anchor->sig, MAX_SIGNATURE_LENGTH); |
709743c5 DW |
3631 | for (i = 0; i < sec->anchor->num_raid_devs; i++) |
3632 | imsm_copy_dev(get_imsm_dev(first, i), get_imsm_dev(sec, i)); | |
3e372e5a DW |
3633 | } |
3634 | ||
cdddbdbc DW |
3635 | return 0; |
3636 | } | |
3637 | ||
0030e8d6 DW |
3638 | static void fd2devname(int fd, char *name) |
3639 | { | |
3640 | struct stat st; | |
3641 | char path[256]; | |
33a6535d | 3642 | char dname[PATH_MAX]; |
0030e8d6 DW |
3643 | char *nm; |
3644 | int rv; | |
3645 | ||
3646 | name[0] = '\0'; | |
3647 | if (fstat(fd, &st) != 0) | |
3648 | return; | |
3649 | sprintf(path, "/sys/dev/block/%d:%d", | |
3650 | major(st.st_rdev), minor(st.st_rdev)); | |
3651 | ||
9cf014ec | 3652 | rv = readlink(path, dname, sizeof(dname)-1); |
0030e8d6 DW |
3653 | if (rv <= 0) |
3654 | return; | |
9587c373 | 3655 | |
0030e8d6 DW |
3656 | dname[rv] = '\0'; |
3657 | nm = strrchr(dname, '/'); | |
7897de29 JS |
3658 | if (nm) { |
3659 | nm++; | |
3660 | snprintf(name, MAX_RAID_SERIAL_LEN, "/dev/%s", nm); | |
3661 | } | |
0030e8d6 DW |
3662 | } |
3663 | ||
21e9380b AP |
3664 | static int nvme_get_serial(int fd, void *buf, size_t buf_len) |
3665 | { | |
3666 | char path[60]; | |
3667 | char *name = fd2kname(fd); | |
3668 | ||
3669 | if (!name) | |
3670 | return 1; | |
3671 | ||
3672 | if (strncmp(name, "nvme", 4) != 0) | |
3673 | return 1; | |
3674 | ||
3675 | snprintf(path, sizeof(path) - 1, "/sys/block/%s/device/serial", name); | |
3676 | ||
3677 | return load_sys(path, buf, buf_len); | |
3678 | } | |
3679 | ||
cdddbdbc DW |
3680 | extern int scsi_get_serial(int fd, void *buf, size_t buf_len); |
3681 | ||
3682 | static int imsm_read_serial(int fd, char *devname, | |
3683 | __u8 serial[MAX_RAID_SERIAL_LEN]) | |
3684 | { | |
21e9380b | 3685 | char buf[50]; |
cdddbdbc | 3686 | int rv; |
1f24f035 | 3687 | int len; |
316e2bf4 DW |
3688 | char *dest; |
3689 | char *src; | |
21e9380b AP |
3690 | unsigned int i; |
3691 | ||
3692 | memset(buf, 0, sizeof(buf)); | |
cdddbdbc | 3693 | |
21e9380b | 3694 | rv = nvme_get_serial(fd, buf, sizeof(buf)); |
cdddbdbc | 3695 | |
21e9380b AP |
3696 | if (rv) |
3697 | rv = scsi_get_serial(fd, buf, sizeof(buf)); | |
f9ba0ff1 | 3698 | |
40ebbb9c | 3699 | if (rv && check_env("IMSM_DEVNAME_AS_SERIAL")) { |
f9ba0ff1 DW |
3700 | memset(serial, 0, MAX_RAID_SERIAL_LEN); |
3701 | fd2devname(fd, (char *) serial); | |
0030e8d6 DW |
3702 | return 0; |
3703 | } | |
3704 | ||
cdddbdbc DW |
3705 | if (rv != 0) { |
3706 | if (devname) | |
e7b84f9d N |
3707 | pr_err("Failed to retrieve serial for %s\n", |
3708 | devname); | |
cdddbdbc DW |
3709 | return rv; |
3710 | } | |
3711 | ||
316e2bf4 DW |
3712 | /* trim all whitespace and non-printable characters and convert |
3713 | * ':' to ';' | |
3714 | */ | |
21e9380b AP |
3715 | for (i = 0, dest = buf; i < sizeof(buf) && buf[i]; i++) { |
3716 | src = &buf[i]; | |
316e2bf4 DW |
3717 | if (*src > 0x20) { |
3718 | /* ':' is reserved for use in placeholder serial | |
3719 | * numbers for missing disks | |
3720 | */ | |
3721 | if (*src == ':') | |
3722 | *dest++ = ';'; | |
3723 | else | |
3724 | *dest++ = *src; | |
3725 | } | |
3726 | } | |
21e9380b AP |
3727 | len = dest - buf; |
3728 | dest = buf; | |
316e2bf4 DW |
3729 | |
3730 | /* truncate leading characters */ | |
3731 | if (len > MAX_RAID_SERIAL_LEN) { | |
3732 | dest += len - MAX_RAID_SERIAL_LEN; | |
1f24f035 | 3733 | len = MAX_RAID_SERIAL_LEN; |
316e2bf4 | 3734 | } |
5c3db629 | 3735 | |
5c3db629 | 3736 | memset(serial, 0, MAX_RAID_SERIAL_LEN); |
316e2bf4 | 3737 | memcpy(serial, dest, len); |
cdddbdbc DW |
3738 | |
3739 | return 0; | |
3740 | } | |
3741 | ||
1f24f035 DW |
3742 | static int serialcmp(__u8 *s1, __u8 *s2) |
3743 | { | |
3744 | return strncmp((char *) s1, (char *) s2, MAX_RAID_SERIAL_LEN); | |
3745 | } | |
3746 | ||
3747 | static void serialcpy(__u8 *dest, __u8 *src) | |
3748 | { | |
3749 | strncpy((char *) dest, (char *) src, MAX_RAID_SERIAL_LEN); | |
3750 | } | |
3751 | ||
54c2c1ea DW |
3752 | static struct dl *serial_to_dl(__u8 *serial, struct intel_super *super) |
3753 | { | |
3754 | struct dl *dl; | |
3755 | ||
3756 | for (dl = super->disks; dl; dl = dl->next) | |
3757 | if (serialcmp(dl->serial, serial) == 0) | |
3758 | break; | |
3759 | ||
3760 | return dl; | |
3761 | } | |
3762 | ||
a2b97981 DW |
3763 | static struct imsm_disk * |
3764 | __serial_to_disk(__u8 *serial, struct imsm_super *mpb, int *idx) | |
3765 | { | |
3766 | int i; | |
3767 | ||
3768 | for (i = 0; i < mpb->num_disks; i++) { | |
3769 | struct imsm_disk *disk = __get_imsm_disk(mpb, i); | |
3770 | ||
3771 | if (serialcmp(disk->serial, serial) == 0) { | |
3772 | if (idx) | |
3773 | *idx = i; | |
3774 | return disk; | |
3775 | } | |
3776 | } | |
3777 | ||
3778 | return NULL; | |
3779 | } | |
3780 | ||
cdddbdbc DW |
3781 | static int |
3782 | load_imsm_disk(int fd, struct intel_super *super, char *devname, int keep_fd) | |
3783 | { | |
a2b97981 | 3784 | struct imsm_disk *disk; |
cdddbdbc DW |
3785 | struct dl *dl; |
3786 | struct stat stb; | |
cdddbdbc | 3787 | int rv; |
a2b97981 | 3788 | char name[40]; |
d23fe947 DW |
3789 | __u8 serial[MAX_RAID_SERIAL_LEN]; |
3790 | ||
3791 | rv = imsm_read_serial(fd, devname, serial); | |
3792 | ||
3793 | if (rv != 0) | |
3794 | return 2; | |
3795 | ||
503975b9 | 3796 | dl = xcalloc(1, sizeof(*dl)); |
cdddbdbc | 3797 | |
a2b97981 DW |
3798 | fstat(fd, &stb); |
3799 | dl->major = major(stb.st_rdev); | |
3800 | dl->minor = minor(stb.st_rdev); | |
3801 | dl->next = super->disks; | |
3802 | dl->fd = keep_fd ? fd : -1; | |
3803 | assert(super->disks == NULL); | |
3804 | super->disks = dl; | |
3805 | serialcpy(dl->serial, serial); | |
3806 | dl->index = -2; | |
3807 | dl->e = NULL; | |
3808 | fd2devname(fd, name); | |
3809 | if (devname) | |
503975b9 | 3810 | dl->devname = xstrdup(devname); |
a2b97981 | 3811 | else |
503975b9 | 3812 | dl->devname = xstrdup(name); |
cdddbdbc | 3813 | |
d23fe947 | 3814 | /* look up this disk's index in the current anchor */ |
a2b97981 DW |
3815 | disk = __serial_to_disk(dl->serial, super->anchor, &dl->index); |
3816 | if (disk) { | |
3817 | dl->disk = *disk; | |
3818 | /* only set index on disks that are a member of a | |
3819 | * populated contianer, i.e. one with raid_devs | |
3820 | */ | |
3821 | if (is_failed(&dl->disk)) | |
3f6efecc | 3822 | dl->index = -2; |
a2b97981 DW |
3823 | else if (is_spare(&dl->disk)) |
3824 | dl->index = -1; | |
3f6efecc DW |
3825 | } |
3826 | ||
949c47a0 DW |
3827 | return 0; |
3828 | } | |
3829 | ||
0e600426 | 3830 | #ifndef MDASSEMBLE |
0c046afd DW |
3831 | /* When migrating map0 contains the 'destination' state while map1 |
3832 | * contains the current state. When not migrating map0 contains the | |
3833 | * current state. This routine assumes that map[0].map_state is set to | |
3834 | * the current array state before being called. | |
3835 | * | |
3836 | * Migration is indicated by one of the following states | |
3837 | * 1/ Idle (migr_state=0 map0state=normal||unitialized||degraded||failed) | |
e3bba0e0 | 3838 | * 2/ Initialize (migr_state=1 migr_type=MIGR_INIT map0state=normal |
0c046afd | 3839 | * map1state=unitialized) |
1484e727 | 3840 | * 3/ Repair (Resync) (migr_state=1 migr_type=MIGR_REPAIR map0state=normal |
0c046afd | 3841 | * map1state=normal) |
e3bba0e0 | 3842 | * 4/ Rebuild (migr_state=1 migr_type=MIGR_REBUILD map0state=normal |
0c046afd | 3843 | * map1state=degraded) |
8e59f3d8 AK |
3844 | * 5/ Migration (mig_state=1 migr_type=MIGR_GEN_MIGR map0state=normal |
3845 | * map1state=normal) | |
0c046afd | 3846 | */ |
8e59f3d8 AK |
3847 | static void migrate(struct imsm_dev *dev, struct intel_super *super, |
3848 | __u8 to_state, int migr_type) | |
3393c6af | 3849 | { |
0c046afd | 3850 | struct imsm_map *dest; |
238c0a71 | 3851 | struct imsm_map *src = get_imsm_map(dev, MAP_0); |
3393c6af | 3852 | |
0c046afd | 3853 | dev->vol.migr_state = 1; |
1484e727 | 3854 | set_migr_type(dev, migr_type); |
f8f603f1 | 3855 | dev->vol.curr_migr_unit = 0; |
238c0a71 | 3856 | dest = get_imsm_map(dev, MAP_1); |
0c046afd | 3857 | |
0556e1a2 | 3858 | /* duplicate and then set the target end state in map[0] */ |
3393c6af | 3859 | memcpy(dest, src, sizeof_imsm_map(src)); |
089f9d79 | 3860 | if (migr_type == MIGR_REBUILD || migr_type == MIGR_GEN_MIGR) { |
0556e1a2 DW |
3861 | __u32 ord; |
3862 | int i; | |
3863 | ||
3864 | for (i = 0; i < src->num_members; i++) { | |
3865 | ord = __le32_to_cpu(src->disk_ord_tbl[i]); | |
3866 | set_imsm_ord_tbl_ent(src, i, ord_to_idx(ord)); | |
3867 | } | |
3868 | } | |
3869 | ||
8e59f3d8 AK |
3870 | if (migr_type == MIGR_GEN_MIGR) |
3871 | /* Clear migration record */ | |
3872 | memset(super->migr_rec, 0, sizeof(struct migr_record)); | |
3873 | ||
0c046afd | 3874 | src->map_state = to_state; |
949c47a0 | 3875 | } |
f8f603f1 | 3876 | |
809da78e AK |
3877 | static void end_migration(struct imsm_dev *dev, struct intel_super *super, |
3878 | __u8 map_state) | |
f8f603f1 | 3879 | { |
238c0a71 AK |
3880 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
3881 | struct imsm_map *prev = get_imsm_map(dev, dev->vol.migr_state == 0 ? | |
3882 | MAP_0 : MAP_1); | |
28bce06f | 3883 | int i, j; |
0556e1a2 DW |
3884 | |
3885 | /* merge any IMSM_ORD_REBUILD bits that were not successfully | |
3886 | * completed in the last migration. | |
3887 | * | |
28bce06f | 3888 | * FIXME add support for raid-level-migration |
0556e1a2 | 3889 | */ |
089f9d79 JS |
3890 | if (map_state != map->map_state && (is_gen_migration(dev) == 0) && |
3891 | prev->map_state != IMSM_T_STATE_UNINITIALIZED) { | |
809da78e AK |
3892 | /* when final map state is other than expected |
3893 | * merge maps (not for migration) | |
3894 | */ | |
3895 | int failed; | |
3896 | ||
3897 | for (i = 0; i < prev->num_members; i++) | |
3898 | for (j = 0; j < map->num_members; j++) | |
3899 | /* during online capacity expansion | |
3900 | * disks position can be changed | |
3901 | * if takeover is used | |
3902 | */ | |
3903 | if (ord_to_idx(map->disk_ord_tbl[j]) == | |
3904 | ord_to_idx(prev->disk_ord_tbl[i])) { | |
3905 | map->disk_ord_tbl[j] |= | |
3906 | prev->disk_ord_tbl[i]; | |
3907 | break; | |
3908 | } | |
3909 | failed = imsm_count_failed(super, dev, MAP_0); | |
3910 | map_state = imsm_check_degraded(super, dev, failed, MAP_0); | |
3911 | } | |
f8f603f1 DW |
3912 | |
3913 | dev->vol.migr_state = 0; | |
ea672ee1 | 3914 | set_migr_type(dev, 0); |
f8f603f1 DW |
3915 | dev->vol.curr_migr_unit = 0; |
3916 | map->map_state = map_state; | |
3917 | } | |
0e600426 | 3918 | #endif |
949c47a0 DW |
3919 | |
3920 | static int parse_raid_devices(struct intel_super *super) | |
3921 | { | |
3922 | int i; | |
3923 | struct imsm_dev *dev_new; | |
4d7b1503 | 3924 | size_t len, len_migr; |
401d313b | 3925 | size_t max_len = 0; |
4d7b1503 DW |
3926 | size_t space_needed = 0; |
3927 | struct imsm_super *mpb = super->anchor; | |
949c47a0 DW |
3928 | |
3929 | for (i = 0; i < super->anchor->num_raid_devs; i++) { | |
3930 | struct imsm_dev *dev_iter = __get_imsm_dev(super->anchor, i); | |
ba2de7ba | 3931 | struct intel_dev *dv; |
949c47a0 | 3932 | |
4d7b1503 DW |
3933 | len = sizeof_imsm_dev(dev_iter, 0); |
3934 | len_migr = sizeof_imsm_dev(dev_iter, 1); | |
3935 | if (len_migr > len) | |
3936 | space_needed += len_migr - len; | |
ca9de185 | 3937 | |
503975b9 | 3938 | dv = xmalloc(sizeof(*dv)); |
401d313b AK |
3939 | if (max_len < len_migr) |
3940 | max_len = len_migr; | |
3941 | if (max_len > len_migr) | |
3942 | space_needed += max_len - len_migr; | |
503975b9 | 3943 | dev_new = xmalloc(max_len); |
949c47a0 | 3944 | imsm_copy_dev(dev_new, dev_iter); |
ba2de7ba DW |
3945 | dv->dev = dev_new; |
3946 | dv->index = i; | |
3947 | dv->next = super->devlist; | |
3948 | super->devlist = dv; | |
949c47a0 | 3949 | } |
cdddbdbc | 3950 | |
4d7b1503 DW |
3951 | /* ensure that super->buf is large enough when all raid devices |
3952 | * are migrating | |
3953 | */ | |
3954 | if (__le32_to_cpu(mpb->mpb_size) + space_needed > super->len) { | |
3955 | void *buf; | |
3956 | ||
f36a9ecd PB |
3957 | len = ROUND_UP(__le32_to_cpu(mpb->mpb_size) + space_needed, |
3958 | super->sector_size); | |
3959 | if (posix_memalign(&buf, MAX_SECTOR_SIZE, len) != 0) | |
4d7b1503 DW |
3960 | return 1; |
3961 | ||
1f45a8ad DW |
3962 | memcpy(buf, super->buf, super->len); |
3963 | memset(buf + super->len, 0, len - super->len); | |
4d7b1503 DW |
3964 | free(super->buf); |
3965 | super->buf = buf; | |
3966 | super->len = len; | |
3967 | } | |
ca9de185 | 3968 | |
bbab0940 TM |
3969 | super->extra_space += space_needed; |
3970 | ||
cdddbdbc DW |
3971 | return 0; |
3972 | } | |
3973 | ||
e2f41b2c AK |
3974 | /******************************************************************************* |
3975 | * Function: check_mpb_migr_compatibility | |
3976 | * Description: Function checks for unsupported migration features: | |
3977 | * - migration optimization area (pba_of_lba0) | |
3978 | * - descending reshape (ascending_migr) | |
3979 | * Parameters: | |
3980 | * super : imsm metadata information | |
3981 | * Returns: | |
3982 | * 0 : migration is compatible | |
3983 | * -1 : migration is not compatible | |
3984 | ******************************************************************************/ | |
3985 | int check_mpb_migr_compatibility(struct intel_super *super) | |
3986 | { | |
3987 | struct imsm_map *map0, *map1; | |
3988 | struct migr_record *migr_rec = super->migr_rec; | |
3989 | int i; | |
3990 | ||
3991 | for (i = 0; i < super->anchor->num_raid_devs; i++) { | |
3992 | struct imsm_dev *dev_iter = __get_imsm_dev(super->anchor, i); | |
3993 | ||
3994 | if (dev_iter && | |
3995 | dev_iter->vol.migr_state == 1 && | |
3996 | dev_iter->vol.migr_type == MIGR_GEN_MIGR) { | |
3997 | /* This device is migrating */ | |
238c0a71 AK |
3998 | map0 = get_imsm_map(dev_iter, MAP_0); |
3999 | map1 = get_imsm_map(dev_iter, MAP_1); | |
5551b113 | 4000 | if (pba_of_lba0(map0) != pba_of_lba0(map1)) |
e2f41b2c AK |
4001 | /* migration optimization area was used */ |
4002 | return -1; | |
4003 | if (migr_rec->ascending_migr == 0 | |
4004 | && migr_rec->dest_depth_per_unit > 0) | |
4005 | /* descending reshape not supported yet */ | |
4006 | return -1; | |
4007 | } | |
4008 | } | |
4009 | return 0; | |
4010 | } | |
4011 | ||
d23fe947 | 4012 | static void __free_imsm(struct intel_super *super, int free_disks); |
9ca2c81c | 4013 | |
cdddbdbc | 4014 | /* load_imsm_mpb - read matrix metadata |
f2f5c343 | 4015 | * allocates super->mpb to be freed by free_imsm |
cdddbdbc DW |
4016 | */ |
4017 | static int load_imsm_mpb(int fd, struct intel_super *super, char *devname) | |
4018 | { | |
4019 | unsigned long long dsize; | |
cdddbdbc | 4020 | unsigned long long sectors; |
f36a9ecd | 4021 | unsigned int sector_size = super->sector_size; |
cdddbdbc | 4022 | struct stat; |
6416d527 | 4023 | struct imsm_super *anchor; |
cdddbdbc DW |
4024 | __u32 check_sum; |
4025 | ||
cdddbdbc | 4026 | get_dev_size(fd, NULL, &dsize); |
f36a9ecd | 4027 | if (dsize < 2*sector_size) { |
64436f06 | 4028 | if (devname) |
e7b84f9d N |
4029 | pr_err("%s: device to small for imsm\n", |
4030 | devname); | |
64436f06 N |
4031 | return 1; |
4032 | } | |
cdddbdbc | 4033 | |
f36a9ecd | 4034 | if (lseek64(fd, dsize - (sector_size * 2), SEEK_SET) < 0) { |
cdddbdbc | 4035 | if (devname) |
e7b84f9d N |
4036 | pr_err("Cannot seek to anchor block on %s: %s\n", |
4037 | devname, strerror(errno)); | |
cdddbdbc DW |
4038 | return 1; |
4039 | } | |
4040 | ||
f36a9ecd | 4041 | if (posix_memalign((void **)&anchor, sector_size, sector_size) != 0) { |
ad97895e | 4042 | if (devname) |
7a862a02 | 4043 | pr_err("Failed to allocate imsm anchor buffer on %s\n", devname); |
ad97895e DW |
4044 | return 1; |
4045 | } | |
f36a9ecd | 4046 | if (read(fd, anchor, sector_size) != sector_size) { |
cdddbdbc | 4047 | if (devname) |
e7b84f9d N |
4048 | pr_err("Cannot read anchor block on %s: %s\n", |
4049 | devname, strerror(errno)); | |
6416d527 | 4050 | free(anchor); |
cdddbdbc DW |
4051 | return 1; |
4052 | } | |
4053 | ||
6416d527 | 4054 | if (strncmp((char *) anchor->sig, MPB_SIGNATURE, MPB_SIG_LEN) != 0) { |
cdddbdbc | 4055 | if (devname) |
e7b84f9d | 4056 | pr_err("no IMSM anchor on %s\n", devname); |
6416d527 | 4057 | free(anchor); |
cdddbdbc DW |
4058 | return 2; |
4059 | } | |
4060 | ||
d23fe947 | 4061 | __free_imsm(super, 0); |
f2f5c343 LM |
4062 | /* reload capability and hba */ |
4063 | ||
4064 | /* capability and hba must be updated with new super allocation */ | |
d424212e | 4065 | find_intel_hba_capability(fd, super, devname); |
f36a9ecd PB |
4066 | super->len = ROUND_UP(anchor->mpb_size, sector_size); |
4067 | if (posix_memalign(&super->buf, MAX_SECTOR_SIZE, super->len) != 0) { | |
cdddbdbc | 4068 | if (devname) |
e7b84f9d N |
4069 | pr_err("unable to allocate %zu byte mpb buffer\n", |
4070 | super->len); | |
6416d527 | 4071 | free(anchor); |
cdddbdbc DW |
4072 | return 2; |
4073 | } | |
f36a9ecd | 4074 | memcpy(super->buf, anchor, sector_size); |
cdddbdbc | 4075 | |
f36a9ecd | 4076 | sectors = mpb_sectors(anchor, sector_size) - 1; |
6416d527 | 4077 | free(anchor); |
8e59f3d8 | 4078 | |
de44e46f PB |
4079 | if (posix_memalign(&super->migr_rec_buf, sector_size, |
4080 | MIGR_REC_BUF_SECTORS*sector_size) != 0) { | |
1ade5cc1 | 4081 | pr_err("could not allocate migr_rec buffer\n"); |
8e59f3d8 AK |
4082 | free(super->buf); |
4083 | return 2; | |
4084 | } | |
51d83f5d | 4085 | super->clean_migration_record_by_mdmon = 0; |
8e59f3d8 | 4086 | |
949c47a0 | 4087 | if (!sectors) { |
ecf45690 DW |
4088 | check_sum = __gen_imsm_checksum(super->anchor); |
4089 | if (check_sum != __le32_to_cpu(super->anchor->check_sum)) { | |
4090 | if (devname) | |
e7b84f9d N |
4091 | pr_err("IMSM checksum %x != %x on %s\n", |
4092 | check_sum, | |
4093 | __le32_to_cpu(super->anchor->check_sum), | |
4094 | devname); | |
ecf45690 DW |
4095 | return 2; |
4096 | } | |
4097 | ||
a2b97981 | 4098 | return 0; |
949c47a0 | 4099 | } |
cdddbdbc DW |
4100 | |
4101 | /* read the extended mpb */ | |
f36a9ecd | 4102 | if (lseek64(fd, dsize - (sector_size * (2 + sectors)), SEEK_SET) < 0) { |
cdddbdbc | 4103 | if (devname) |
e7b84f9d N |
4104 | pr_err("Cannot seek to extended mpb on %s: %s\n", |
4105 | devname, strerror(errno)); | |
cdddbdbc DW |
4106 | return 1; |
4107 | } | |
4108 | ||
f36a9ecd PB |
4109 | if ((unsigned int)read(fd, super->buf + sector_size, |
4110 | super->len - sector_size) != super->len - sector_size) { | |
cdddbdbc | 4111 | if (devname) |
e7b84f9d N |
4112 | pr_err("Cannot read extended mpb on %s: %s\n", |
4113 | devname, strerror(errno)); | |
cdddbdbc DW |
4114 | return 2; |
4115 | } | |
4116 | ||
949c47a0 DW |
4117 | check_sum = __gen_imsm_checksum(super->anchor); |
4118 | if (check_sum != __le32_to_cpu(super->anchor->check_sum)) { | |
cdddbdbc | 4119 | if (devname) |
e7b84f9d N |
4120 | pr_err("IMSM checksum %x != %x on %s\n", |
4121 | check_sum, __le32_to_cpu(super->anchor->check_sum), | |
4122 | devname); | |
db575f3b | 4123 | return 3; |
cdddbdbc DW |
4124 | } |
4125 | ||
a2b97981 DW |
4126 | return 0; |
4127 | } | |
4128 | ||
8e59f3d8 AK |
4129 | static int read_imsm_migr_rec(int fd, struct intel_super *super); |
4130 | ||
97f81ee2 CA |
4131 | /* clears hi bits in metadata if MPB_ATTRIB_2TB_DISK not set */ |
4132 | static void clear_hi(struct intel_super *super) | |
4133 | { | |
4134 | struct imsm_super *mpb = super->anchor; | |
4135 | int i, n; | |
4136 | if (mpb->attributes & MPB_ATTRIB_2TB_DISK) | |
4137 | return; | |
4138 | for (i = 0; i < mpb->num_disks; ++i) { | |
4139 | struct imsm_disk *disk = &mpb->disk[i]; | |
4140 | disk->total_blocks_hi = 0; | |
4141 | } | |
4142 | for (i = 0; i < mpb->num_raid_devs; ++i) { | |
4143 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
4144 | if (!dev) | |
4145 | return; | |
4146 | for (n = 0; n < 2; ++n) { | |
4147 | struct imsm_map *map = get_imsm_map(dev, n); | |
4148 | if (!map) | |
4149 | continue; | |
4150 | map->pba_of_lba0_hi = 0; | |
4151 | map->blocks_per_member_hi = 0; | |
4152 | map->num_data_stripes_hi = 0; | |
4153 | } | |
4154 | } | |
4155 | } | |
4156 | ||
a2b97981 DW |
4157 | static int |
4158 | load_and_parse_mpb(int fd, struct intel_super *super, char *devname, int keep_fd) | |
4159 | { | |
4160 | int err; | |
4161 | ||
4162 | err = load_imsm_mpb(fd, super, devname); | |
4163 | if (err) | |
4164 | return err; | |
f36a9ecd PB |
4165 | if (super->sector_size == 4096) |
4166 | convert_from_4k(super); | |
a2b97981 DW |
4167 | err = load_imsm_disk(fd, super, devname, keep_fd); |
4168 | if (err) | |
4169 | return err; | |
4170 | err = parse_raid_devices(super); | |
8d67477f TM |
4171 | if (err) |
4172 | return err; | |
4173 | err = load_bbm_log(super); | |
97f81ee2 | 4174 | clear_hi(super); |
a2b97981 | 4175 | return err; |
cdddbdbc DW |
4176 | } |
4177 | ||
ae6aad82 DW |
4178 | static void __free_imsm_disk(struct dl *d) |
4179 | { | |
4180 | if (d->fd >= 0) | |
4181 | close(d->fd); | |
4182 | if (d->devname) | |
4183 | free(d->devname); | |
0dcecb2e DW |
4184 | if (d->e) |
4185 | free(d->e); | |
ae6aad82 DW |
4186 | free(d); |
4187 | ||
4188 | } | |
1a64be56 | 4189 | |
cdddbdbc DW |
4190 | static void free_imsm_disks(struct intel_super *super) |
4191 | { | |
47ee5a45 | 4192 | struct dl *d; |
cdddbdbc | 4193 | |
47ee5a45 DW |
4194 | while (super->disks) { |
4195 | d = super->disks; | |
cdddbdbc | 4196 | super->disks = d->next; |
ae6aad82 | 4197 | __free_imsm_disk(d); |
cdddbdbc | 4198 | } |
cb82edca AK |
4199 | while (super->disk_mgmt_list) { |
4200 | d = super->disk_mgmt_list; | |
4201 | super->disk_mgmt_list = d->next; | |
4202 | __free_imsm_disk(d); | |
4203 | } | |
47ee5a45 DW |
4204 | while (super->missing) { |
4205 | d = super->missing; | |
4206 | super->missing = d->next; | |
4207 | __free_imsm_disk(d); | |
4208 | } | |
4209 | ||
cdddbdbc DW |
4210 | } |
4211 | ||
9ca2c81c | 4212 | /* free all the pieces hanging off of a super pointer */ |
d23fe947 | 4213 | static void __free_imsm(struct intel_super *super, int free_disks) |
cdddbdbc | 4214 | { |
88654014 LM |
4215 | struct intel_hba *elem, *next; |
4216 | ||
9ca2c81c | 4217 | if (super->buf) { |
949c47a0 | 4218 | free(super->buf); |
9ca2c81c DW |
4219 | super->buf = NULL; |
4220 | } | |
f2f5c343 LM |
4221 | /* unlink capability description */ |
4222 | super->orom = NULL; | |
8e59f3d8 AK |
4223 | if (super->migr_rec_buf) { |
4224 | free(super->migr_rec_buf); | |
4225 | super->migr_rec_buf = NULL; | |
4226 | } | |
d23fe947 DW |
4227 | if (free_disks) |
4228 | free_imsm_disks(super); | |
ba2de7ba | 4229 | free_devlist(super); |
88654014 LM |
4230 | elem = super->hba; |
4231 | while (elem) { | |
4232 | if (elem->path) | |
4233 | free((void *)elem->path); | |
4234 | next = elem->next; | |
4235 | free(elem); | |
4236 | elem = next; | |
88c32bb1 | 4237 | } |
8d67477f TM |
4238 | if (super->bbm_log) |
4239 | free(super->bbm_log); | |
88654014 | 4240 | super->hba = NULL; |
cdddbdbc DW |
4241 | } |
4242 | ||
9ca2c81c DW |
4243 | static void free_imsm(struct intel_super *super) |
4244 | { | |
d23fe947 | 4245 | __free_imsm(super, 1); |
9ca2c81c DW |
4246 | free(super); |
4247 | } | |
cdddbdbc DW |
4248 | |
4249 | static void free_super_imsm(struct supertype *st) | |
4250 | { | |
4251 | struct intel_super *super = st->sb; | |
4252 | ||
4253 | if (!super) | |
4254 | return; | |
4255 | ||
4256 | free_imsm(super); | |
4257 | st->sb = NULL; | |
4258 | } | |
4259 | ||
49133e57 | 4260 | static struct intel_super *alloc_super(void) |
c2c087e6 | 4261 | { |
503975b9 | 4262 | struct intel_super *super = xcalloc(1, sizeof(*super)); |
c2c087e6 | 4263 | |
503975b9 N |
4264 | super->current_vol = -1; |
4265 | super->create_offset = ~((unsigned long long) 0); | |
c2c087e6 DW |
4266 | return super; |
4267 | } | |
4268 | ||
f0f5a016 LM |
4269 | /* |
4270 | * find and allocate hba and OROM/EFI based on valid fd of RAID component device | |
4271 | */ | |
d424212e | 4272 | static int find_intel_hba_capability(int fd, struct intel_super *super, char *devname) |
f0f5a016 LM |
4273 | { |
4274 | struct sys_dev *hba_name; | |
4275 | int rv = 0; | |
4276 | ||
089f9d79 | 4277 | if (fd < 0 || check_env("IMSM_NO_PLATFORM")) { |
f2f5c343 | 4278 | super->orom = NULL; |
f0f5a016 LM |
4279 | super->hba = NULL; |
4280 | return 0; | |
4281 | } | |
4282 | hba_name = find_disk_attached_hba(fd, NULL); | |
4283 | if (!hba_name) { | |
d424212e | 4284 | if (devname) |
e7b84f9d N |
4285 | pr_err("%s is not attached to Intel(R) RAID controller.\n", |
4286 | devname); | |
f0f5a016 LM |
4287 | return 1; |
4288 | } | |
4289 | rv = attach_hba_to_super(super, hba_name); | |
4290 | if (rv == 2) { | |
d424212e N |
4291 | if (devname) { |
4292 | struct intel_hba *hba = super->hba; | |
f0f5a016 | 4293 | |
60f0f54d PB |
4294 | pr_err("%s is attached to Intel(R) %s %s (%s),\n" |
4295 | " but the container is assigned to Intel(R) %s %s (", | |
d424212e | 4296 | devname, |
614902f6 | 4297 | get_sys_dev_type(hba_name->type), |
60f0f54d | 4298 | hba_name->type == SYS_DEV_VMD ? "domain" : "RAID controller", |
f0f5a016 | 4299 | hba_name->pci_id ? : "Err!", |
60f0f54d PB |
4300 | get_sys_dev_type(super->hba->type), |
4301 | hba->type == SYS_DEV_VMD ? "domain" : "RAID controller"); | |
f0f5a016 | 4302 | |
f0f5a016 LM |
4303 | while (hba) { |
4304 | fprintf(stderr, "%s", hba->pci_id ? : "Err!"); | |
4305 | if (hba->next) | |
4306 | fprintf(stderr, ", "); | |
4307 | hba = hba->next; | |
4308 | } | |
6b781d33 | 4309 | fprintf(stderr, ").\n" |
60f0f54d PB |
4310 | " Mixing devices attached to different %s is not allowed.\n", |
4311 | hba_name->type == SYS_DEV_VMD ? "VMD domains" : "controllers"); | |
f0f5a016 | 4312 | } |
f0f5a016 LM |
4313 | return 2; |
4314 | } | |
6b781d33 | 4315 | super->orom = find_imsm_capability(hba_name); |
f2f5c343 LM |
4316 | if (!super->orom) |
4317 | return 3; | |
614902f6 | 4318 | |
f0f5a016 LM |
4319 | return 0; |
4320 | } | |
4321 | ||
47ee5a45 DW |
4322 | /* find_missing - helper routine for load_super_imsm_all that identifies |
4323 | * disks that have disappeared from the system. This routine relies on | |
4324 | * the mpb being uptodate, which it is at load time. | |
4325 | */ | |
4326 | static int find_missing(struct intel_super *super) | |
4327 | { | |
4328 | int i; | |
4329 | struct imsm_super *mpb = super->anchor; | |
4330 | struct dl *dl; | |
4331 | struct imsm_disk *disk; | |
47ee5a45 DW |
4332 | |
4333 | for (i = 0; i < mpb->num_disks; i++) { | |
4334 | disk = __get_imsm_disk(mpb, i); | |
54c2c1ea | 4335 | dl = serial_to_dl(disk->serial, super); |
47ee5a45 DW |
4336 | if (dl) |
4337 | continue; | |
47ee5a45 | 4338 | |
503975b9 | 4339 | dl = xmalloc(sizeof(*dl)); |
47ee5a45 DW |
4340 | dl->major = 0; |
4341 | dl->minor = 0; | |
4342 | dl->fd = -1; | |
503975b9 | 4343 | dl->devname = xstrdup("missing"); |
47ee5a45 DW |
4344 | dl->index = i; |
4345 | serialcpy(dl->serial, disk->serial); | |
4346 | dl->disk = *disk; | |
689c9bf3 | 4347 | dl->e = NULL; |
47ee5a45 DW |
4348 | dl->next = super->missing; |
4349 | super->missing = dl; | |
4350 | } | |
4351 | ||
4352 | return 0; | |
4353 | } | |
4354 | ||
3960e579 | 4355 | #ifndef MDASSEMBLE |
a2b97981 DW |
4356 | static struct intel_disk *disk_list_get(__u8 *serial, struct intel_disk *disk_list) |
4357 | { | |
4358 | struct intel_disk *idisk = disk_list; | |
4359 | ||
4360 | while (idisk) { | |
4361 | if (serialcmp(idisk->disk.serial, serial) == 0) | |
4362 | break; | |
4363 | idisk = idisk->next; | |
4364 | } | |
4365 | ||
4366 | return idisk; | |
4367 | } | |
4368 | ||
4369 | static int __prep_thunderdome(struct intel_super **table, int tbl_size, | |
4370 | struct intel_super *super, | |
4371 | struct intel_disk **disk_list) | |
4372 | { | |
4373 | struct imsm_disk *d = &super->disks->disk; | |
4374 | struct imsm_super *mpb = super->anchor; | |
4375 | int i, j; | |
4376 | ||
4377 | for (i = 0; i < tbl_size; i++) { | |
4378 | struct imsm_super *tbl_mpb = table[i]->anchor; | |
4379 | struct imsm_disk *tbl_d = &table[i]->disks->disk; | |
4380 | ||
4381 | if (tbl_mpb->family_num == mpb->family_num) { | |
4382 | if (tbl_mpb->check_sum == mpb->check_sum) { | |
1ade5cc1 N |
4383 | dprintf("mpb from %d:%d matches %d:%d\n", |
4384 | super->disks->major, | |
a2b97981 DW |
4385 | super->disks->minor, |
4386 | table[i]->disks->major, | |
4387 | table[i]->disks->minor); | |
4388 | break; | |
4389 | } | |
4390 | ||
4391 | if (((is_configured(d) && !is_configured(tbl_d)) || | |
4392 | is_configured(d) == is_configured(tbl_d)) && | |
4393 | tbl_mpb->generation_num < mpb->generation_num) { | |
4394 | /* current version of the mpb is a | |
4395 | * better candidate than the one in | |
4396 | * super_table, but copy over "cross | |
4397 | * generational" status | |
4398 | */ | |
4399 | struct intel_disk *idisk; | |
4400 | ||
1ade5cc1 N |
4401 | dprintf("mpb from %d:%d replaces %d:%d\n", |
4402 | super->disks->major, | |
a2b97981 DW |
4403 | super->disks->minor, |
4404 | table[i]->disks->major, | |
4405 | table[i]->disks->minor); | |
4406 | ||
4407 | idisk = disk_list_get(tbl_d->serial, *disk_list); | |
4408 | if (idisk && is_failed(&idisk->disk)) | |
4409 | tbl_d->status |= FAILED_DISK; | |
4410 | break; | |
4411 | } else { | |
4412 | struct intel_disk *idisk; | |
4413 | struct imsm_disk *disk; | |
4414 | ||
4415 | /* tbl_mpb is more up to date, but copy | |
4416 | * over cross generational status before | |
4417 | * returning | |
4418 | */ | |
4419 | disk = __serial_to_disk(d->serial, mpb, NULL); | |
4420 | if (disk && is_failed(disk)) | |
4421 | d->status |= FAILED_DISK; | |
4422 | ||
4423 | idisk = disk_list_get(d->serial, *disk_list); | |
4424 | if (idisk) { | |
4425 | idisk->owner = i; | |
4426 | if (disk && is_configured(disk)) | |
4427 | idisk->disk.status |= CONFIGURED_DISK; | |
4428 | } | |
4429 | ||
1ade5cc1 N |
4430 | dprintf("mpb from %d:%d prefer %d:%d\n", |
4431 | super->disks->major, | |
a2b97981 DW |
4432 | super->disks->minor, |
4433 | table[i]->disks->major, | |
4434 | table[i]->disks->minor); | |
4435 | ||
4436 | return tbl_size; | |
4437 | } | |
4438 | } | |
4439 | } | |
4440 | ||
4441 | if (i >= tbl_size) | |
4442 | table[tbl_size++] = super; | |
4443 | else | |
4444 | table[i] = super; | |
4445 | ||
4446 | /* update/extend the merged list of imsm_disk records */ | |
4447 | for (j = 0; j < mpb->num_disks; j++) { | |
4448 | struct imsm_disk *disk = __get_imsm_disk(mpb, j); | |
4449 | struct intel_disk *idisk; | |
4450 | ||
4451 | idisk = disk_list_get(disk->serial, *disk_list); | |
4452 | if (idisk) { | |
4453 | idisk->disk.status |= disk->status; | |
4454 | if (is_configured(&idisk->disk) || | |
4455 | is_failed(&idisk->disk)) | |
4456 | idisk->disk.status &= ~(SPARE_DISK); | |
4457 | } else { | |
503975b9 | 4458 | idisk = xcalloc(1, sizeof(*idisk)); |
a2b97981 DW |
4459 | idisk->owner = IMSM_UNKNOWN_OWNER; |
4460 | idisk->disk = *disk; | |
4461 | idisk->next = *disk_list; | |
4462 | *disk_list = idisk; | |
4463 | } | |
4464 | ||
4465 | if (serialcmp(idisk->disk.serial, d->serial) == 0) | |
4466 | idisk->owner = i; | |
4467 | } | |
4468 | ||
4469 | return tbl_size; | |
4470 | } | |
4471 | ||
4472 | static struct intel_super * | |
4473 | validate_members(struct intel_super *super, struct intel_disk *disk_list, | |
4474 | const int owner) | |
4475 | { | |
4476 | struct imsm_super *mpb = super->anchor; | |
4477 | int ok_count = 0; | |
4478 | int i; | |
4479 | ||
4480 | for (i = 0; i < mpb->num_disks; i++) { | |
4481 | struct imsm_disk *disk = __get_imsm_disk(mpb, i); | |
4482 | struct intel_disk *idisk; | |
4483 | ||
4484 | idisk = disk_list_get(disk->serial, disk_list); | |
4485 | if (idisk) { | |
4486 | if (idisk->owner == owner || | |
4487 | idisk->owner == IMSM_UNKNOWN_OWNER) | |
4488 | ok_count++; | |
4489 | else | |
1ade5cc1 N |
4490 | dprintf("'%.16s' owner %d != %d\n", |
4491 | disk->serial, idisk->owner, | |
a2b97981 DW |
4492 | owner); |
4493 | } else { | |
1ade5cc1 N |
4494 | dprintf("unknown disk %x [%d]: %.16s\n", |
4495 | __le32_to_cpu(mpb->family_num), i, | |
a2b97981 DW |
4496 | disk->serial); |
4497 | break; | |
4498 | } | |
4499 | } | |
4500 | ||
4501 | if (ok_count == mpb->num_disks) | |
4502 | return super; | |
4503 | return NULL; | |
4504 | } | |
4505 | ||
4506 | static void show_conflicts(__u32 family_num, struct intel_super *super_list) | |
4507 | { | |
4508 | struct intel_super *s; | |
4509 | ||
4510 | for (s = super_list; s; s = s->next) { | |
4511 | if (family_num != s->anchor->family_num) | |
4512 | continue; | |
e12b3daa | 4513 | pr_err("Conflict, offlining family %#x on '%s'\n", |
a2b97981 DW |
4514 | __le32_to_cpu(family_num), s->disks->devname); |
4515 | } | |
4516 | } | |
4517 | ||
4518 | static struct intel_super * | |
4519 | imsm_thunderdome(struct intel_super **super_list, int len) | |
4520 | { | |
4521 | struct intel_super *super_table[len]; | |
4522 | struct intel_disk *disk_list = NULL; | |
4523 | struct intel_super *champion, *spare; | |
4524 | struct intel_super *s, **del; | |
4525 | int tbl_size = 0; | |
4526 | int conflict; | |
4527 | int i; | |
4528 | ||
4529 | memset(super_table, 0, sizeof(super_table)); | |
4530 | for (s = *super_list; s; s = s->next) | |
4531 | tbl_size = __prep_thunderdome(super_table, tbl_size, s, &disk_list); | |
4532 | ||
4533 | for (i = 0; i < tbl_size; i++) { | |
4534 | struct imsm_disk *d; | |
4535 | struct intel_disk *idisk; | |
4536 | struct imsm_super *mpb = super_table[i]->anchor; | |
4537 | ||
4538 | s = super_table[i]; | |
4539 | d = &s->disks->disk; | |
4540 | ||
4541 | /* 'd' must appear in merged disk list for its | |
4542 | * configuration to be valid | |
4543 | */ | |
4544 | idisk = disk_list_get(d->serial, disk_list); | |
4545 | if (idisk && idisk->owner == i) | |
4546 | s = validate_members(s, disk_list, i); | |
4547 | else | |
4548 | s = NULL; | |
4549 | ||
4550 | if (!s) | |
1ade5cc1 N |
4551 | dprintf("marking family: %#x from %d:%d offline\n", |
4552 | mpb->family_num, | |
a2b97981 DW |
4553 | super_table[i]->disks->major, |
4554 | super_table[i]->disks->minor); | |
4555 | super_table[i] = s; | |
4556 | } | |
4557 | ||
4558 | /* This is where the mdadm implementation differs from the Windows | |
4559 | * driver which has no strict concept of a container. We can only | |
4560 | * assemble one family from a container, so when returning a prodigal | |
4561 | * array member to this system the code will not be able to disambiguate | |
4562 | * the container contents that should be assembled ("foreign" versus | |
4563 | * "local"). It requires user intervention to set the orig_family_num | |
4564 | * to a new value to establish a new container. The Windows driver in | |
4565 | * this situation fixes up the volume name in place and manages the | |
4566 | * foreign array as an independent entity. | |
4567 | */ | |
4568 | s = NULL; | |
4569 | spare = NULL; | |
4570 | conflict = 0; | |
4571 | for (i = 0; i < tbl_size; i++) { | |
4572 | struct intel_super *tbl_ent = super_table[i]; | |
4573 | int is_spare = 0; | |
4574 | ||
4575 | if (!tbl_ent) | |
4576 | continue; | |
4577 | ||
4578 | if (tbl_ent->anchor->num_raid_devs == 0) { | |
4579 | spare = tbl_ent; | |
4580 | is_spare = 1; | |
4581 | } | |
4582 | ||
4583 | if (s && !is_spare) { | |
4584 | show_conflicts(tbl_ent->anchor->family_num, *super_list); | |
4585 | conflict++; | |
4586 | } else if (!s && !is_spare) | |
4587 | s = tbl_ent; | |
4588 | } | |
4589 | ||
4590 | if (!s) | |
4591 | s = spare; | |
4592 | if (!s) { | |
4593 | champion = NULL; | |
4594 | goto out; | |
4595 | } | |
4596 | champion = s; | |
4597 | ||
4598 | if (conflict) | |
7a862a02 | 4599 | pr_err("Chose family %#x on '%s', assemble conflicts to new container with '--update=uuid'\n", |
a2b97981 DW |
4600 | __le32_to_cpu(s->anchor->family_num), s->disks->devname); |
4601 | ||
4602 | /* collect all dl's onto 'champion', and update them to | |
4603 | * champion's version of the status | |
4604 | */ | |
4605 | for (s = *super_list; s; s = s->next) { | |
4606 | struct imsm_super *mpb = champion->anchor; | |
4607 | struct dl *dl = s->disks; | |
4608 | ||
4609 | if (s == champion) | |
4610 | continue; | |
4611 | ||
5d7b407a CA |
4612 | mpb->attributes |= s->anchor->attributes & MPB_ATTRIB_2TB_DISK; |
4613 | ||
a2b97981 DW |
4614 | for (i = 0; i < mpb->num_disks; i++) { |
4615 | struct imsm_disk *disk; | |
4616 | ||
4617 | disk = __serial_to_disk(dl->serial, mpb, &dl->index); | |
4618 | if (disk) { | |
4619 | dl->disk = *disk; | |
4620 | /* only set index on disks that are a member of | |
4621 | * a populated contianer, i.e. one with | |
4622 | * raid_devs | |
4623 | */ | |
4624 | if (is_failed(&dl->disk)) | |
4625 | dl->index = -2; | |
4626 | else if (is_spare(&dl->disk)) | |
4627 | dl->index = -1; | |
4628 | break; | |
4629 | } | |
4630 | } | |
4631 | ||
4632 | if (i >= mpb->num_disks) { | |
4633 | struct intel_disk *idisk; | |
4634 | ||
4635 | idisk = disk_list_get(dl->serial, disk_list); | |
ecf408e9 | 4636 | if (idisk && is_spare(&idisk->disk) && |
a2b97981 DW |
4637 | !is_failed(&idisk->disk) && !is_configured(&idisk->disk)) |
4638 | dl->index = -1; | |
4639 | else { | |
4640 | dl->index = -2; | |
4641 | continue; | |
4642 | } | |
4643 | } | |
4644 | ||
4645 | dl->next = champion->disks; | |
4646 | champion->disks = dl; | |
4647 | s->disks = NULL; | |
4648 | } | |
4649 | ||
4650 | /* delete 'champion' from super_list */ | |
4651 | for (del = super_list; *del; ) { | |
4652 | if (*del == champion) { | |
4653 | *del = (*del)->next; | |
4654 | break; | |
4655 | } else | |
4656 | del = &(*del)->next; | |
4657 | } | |
4658 | champion->next = NULL; | |
4659 | ||
4660 | out: | |
4661 | while (disk_list) { | |
4662 | struct intel_disk *idisk = disk_list; | |
4663 | ||
4664 | disk_list = disk_list->next; | |
4665 | free(idisk); | |
4666 | } | |
4667 | ||
4668 | return champion; | |
4669 | } | |
4670 | ||
9587c373 LM |
4671 | static int |
4672 | get_sra_super_block(int fd, struct intel_super **super_list, char *devname, int *max, int keep_fd); | |
4dd2df09 | 4673 | static int get_super_block(struct intel_super **super_list, char *devnm, char *devname, |
9587c373 | 4674 | int major, int minor, int keep_fd); |
ec50f7b6 LM |
4675 | static int |
4676 | get_devlist_super_block(struct md_list *devlist, struct intel_super **super_list, | |
4677 | int *max, int keep_fd); | |
4678 | ||
cdddbdbc | 4679 | static int load_super_imsm_all(struct supertype *st, int fd, void **sbp, |
ec50f7b6 LM |
4680 | char *devname, struct md_list *devlist, |
4681 | int keep_fd) | |
cdddbdbc | 4682 | { |
a2b97981 DW |
4683 | struct intel_super *super_list = NULL; |
4684 | struct intel_super *super = NULL; | |
a2b97981 | 4685 | int err = 0; |
9587c373 | 4686 | int i = 0; |
dab4a513 | 4687 | |
9587c373 LM |
4688 | if (fd >= 0) |
4689 | /* 'fd' is an opened container */ | |
4690 | err = get_sra_super_block(fd, &super_list, devname, &i, keep_fd); | |
4691 | else | |
ec50f7b6 LM |
4692 | /* get super block from devlist devices */ |
4693 | err = get_devlist_super_block(devlist, &super_list, &i, keep_fd); | |
9587c373 | 4694 | if (err) |
1602d52c | 4695 | goto error; |
a2b97981 DW |
4696 | /* all mpbs enter, maybe one leaves */ |
4697 | super = imsm_thunderdome(&super_list, i); | |
4698 | if (!super) { | |
4699 | err = 1; | |
4700 | goto error; | |
cdddbdbc DW |
4701 | } |
4702 | ||
47ee5a45 DW |
4703 | if (find_missing(super) != 0) { |
4704 | free_imsm(super); | |
a2b97981 DW |
4705 | err = 2; |
4706 | goto error; | |
47ee5a45 | 4707 | } |
8e59f3d8 AK |
4708 | |
4709 | /* load migration record */ | |
4710 | err = load_imsm_migr_rec(super, NULL); | |
4c965cc9 AK |
4711 | if (err == -1) { |
4712 | /* migration is in progress, | |
4713 | * but migr_rec cannot be loaded, | |
4714 | */ | |
8e59f3d8 AK |
4715 | err = 4; |
4716 | goto error; | |
4717 | } | |
e2f41b2c AK |
4718 | |
4719 | /* Check migration compatibility */ | |
089f9d79 | 4720 | if (err == 0 && check_mpb_migr_compatibility(super) != 0) { |
e7b84f9d | 4721 | pr_err("Unsupported migration detected"); |
e2f41b2c AK |
4722 | if (devname) |
4723 | fprintf(stderr, " on %s\n", devname); | |
4724 | else | |
4725 | fprintf(stderr, " (IMSM).\n"); | |
4726 | ||
4727 | err = 5; | |
4728 | goto error; | |
4729 | } | |
4730 | ||
a2b97981 DW |
4731 | err = 0; |
4732 | ||
4733 | error: | |
4734 | while (super_list) { | |
4735 | struct intel_super *s = super_list; | |
4736 | ||
4737 | super_list = super_list->next; | |
4738 | free_imsm(s); | |
4739 | } | |
9587c373 | 4740 | |
a2b97981 DW |
4741 | if (err) |
4742 | return err; | |
f7e7067b | 4743 | |
cdddbdbc | 4744 | *sbp = super; |
9587c373 | 4745 | if (fd >= 0) |
4dd2df09 | 4746 | strcpy(st->container_devnm, fd2devnm(fd)); |
9587c373 | 4747 | else |
4dd2df09 | 4748 | st->container_devnm[0] = 0; |
a2b97981 | 4749 | if (err == 0 && st->ss == NULL) { |
bf5a934a | 4750 | st->ss = &super_imsm; |
cdddbdbc DW |
4751 | st->minor_version = 0; |
4752 | st->max_devs = IMSM_MAX_DEVICES; | |
4753 | } | |
cdddbdbc DW |
4754 | return 0; |
4755 | } | |
2b959fbf | 4756 | |
ec50f7b6 LM |
4757 | static int |
4758 | get_devlist_super_block(struct md_list *devlist, struct intel_super **super_list, | |
4759 | int *max, int keep_fd) | |
4760 | { | |
4761 | struct md_list *tmpdev; | |
4762 | int err = 0; | |
4763 | int i = 0; | |
9587c373 | 4764 | |
ec50f7b6 LM |
4765 | for (i = 0, tmpdev = devlist; tmpdev; tmpdev = tmpdev->next) { |
4766 | if (tmpdev->used != 1) | |
4767 | continue; | |
4768 | if (tmpdev->container == 1) { | |
ca9de185 | 4769 | int lmax = 0; |
ec50f7b6 LM |
4770 | int fd = dev_open(tmpdev->devname, O_RDONLY|O_EXCL); |
4771 | if (fd < 0) { | |
e7b84f9d | 4772 | pr_err("cannot open device %s: %s\n", |
ec50f7b6 LM |
4773 | tmpdev->devname, strerror(errno)); |
4774 | err = 8; | |
4775 | goto error; | |
4776 | } | |
4777 | err = get_sra_super_block(fd, super_list, | |
4778 | tmpdev->devname, &lmax, | |
4779 | keep_fd); | |
4780 | i += lmax; | |
4781 | close(fd); | |
4782 | if (err) { | |
4783 | err = 7; | |
4784 | goto error; | |
4785 | } | |
4786 | } else { | |
4787 | int major = major(tmpdev->st_rdev); | |
4788 | int minor = minor(tmpdev->st_rdev); | |
4789 | err = get_super_block(super_list, | |
4dd2df09 | 4790 | NULL, |
ec50f7b6 LM |
4791 | tmpdev->devname, |
4792 | major, minor, | |
4793 | keep_fd); | |
4794 | i++; | |
4795 | if (err) { | |
4796 | err = 6; | |
4797 | goto error; | |
4798 | } | |
4799 | } | |
4800 | } | |
4801 | error: | |
4802 | *max = i; | |
4803 | return err; | |
4804 | } | |
9587c373 | 4805 | |
4dd2df09 | 4806 | static int get_super_block(struct intel_super **super_list, char *devnm, char *devname, |
9587c373 LM |
4807 | int major, int minor, int keep_fd) |
4808 | { | |
594dc1b8 | 4809 | struct intel_super *s; |
9587c373 LM |
4810 | char nm[32]; |
4811 | int dfd = -1; | |
9587c373 LM |
4812 | int err = 0; |
4813 | int retry; | |
4814 | ||
4815 | s = alloc_super(); | |
4816 | if (!s) { | |
4817 | err = 1; | |
4818 | goto error; | |
4819 | } | |
4820 | ||
4821 | sprintf(nm, "%d:%d", major, minor); | |
4822 | dfd = dev_open(nm, O_RDWR); | |
4823 | if (dfd < 0) { | |
4824 | err = 2; | |
4825 | goto error; | |
4826 | } | |
4827 | ||
fa7bb6f8 | 4828 | get_dev_sector_size(dfd, NULL, &s->sector_size); |
cb8f6859 | 4829 | find_intel_hba_capability(dfd, s, devname); |
9587c373 LM |
4830 | err = load_and_parse_mpb(dfd, s, NULL, keep_fd); |
4831 | ||
4832 | /* retry the load if we might have raced against mdmon */ | |
4dd2df09 | 4833 | if (err == 3 && devnm && mdmon_running(devnm)) |
9587c373 LM |
4834 | for (retry = 0; retry < 3; retry++) { |
4835 | usleep(3000); | |
4836 | err = load_and_parse_mpb(dfd, s, NULL, keep_fd); | |
4837 | if (err != 3) | |
4838 | break; | |
4839 | } | |
4840 | error: | |
4841 | if (!err) { | |
4842 | s->next = *super_list; | |
4843 | *super_list = s; | |
4844 | } else { | |
4845 | if (s) | |
8d67477f | 4846 | free_imsm(s); |
36614e95 | 4847 | if (dfd >= 0) |
9587c373 LM |
4848 | close(dfd); |
4849 | } | |
089f9d79 | 4850 | if (dfd >= 0 && !keep_fd) |
9587c373 LM |
4851 | close(dfd); |
4852 | return err; | |
4853 | ||
4854 | } | |
4855 | ||
4856 | static int | |
4857 | get_sra_super_block(int fd, struct intel_super **super_list, char *devname, int *max, int keep_fd) | |
4858 | { | |
4859 | struct mdinfo *sra; | |
4dd2df09 | 4860 | char *devnm; |
9587c373 LM |
4861 | struct mdinfo *sd; |
4862 | int err = 0; | |
4863 | int i = 0; | |
4dd2df09 | 4864 | sra = sysfs_read(fd, NULL, GET_LEVEL|GET_VERSION|GET_DEVS|GET_STATE); |
9587c373 LM |
4865 | if (!sra) |
4866 | return 1; | |
4867 | ||
4868 | if (sra->array.major_version != -1 || | |
4869 | sra->array.minor_version != -2 || | |
4870 | strcmp(sra->text_version, "imsm") != 0) { | |
4871 | err = 1; | |
4872 | goto error; | |
4873 | } | |
4874 | /* load all mpbs */ | |
4dd2df09 | 4875 | devnm = fd2devnm(fd); |
9587c373 | 4876 | for (sd = sra->devs, i = 0; sd; sd = sd->next, i++) { |
4dd2df09 | 4877 | if (get_super_block(super_list, devnm, devname, |
9587c373 LM |
4878 | sd->disk.major, sd->disk.minor, keep_fd) != 0) { |
4879 | err = 7; | |
4880 | goto error; | |
4881 | } | |
4882 | } | |
4883 | error: | |
4884 | sysfs_free(sra); | |
4885 | *max = i; | |
4886 | return err; | |
4887 | } | |
4888 | ||
2b959fbf N |
4889 | static int load_container_imsm(struct supertype *st, int fd, char *devname) |
4890 | { | |
ec50f7b6 | 4891 | return load_super_imsm_all(st, fd, &st->sb, devname, NULL, 1); |
2b959fbf | 4892 | } |
cdddbdbc DW |
4893 | #endif |
4894 | ||
4895 | static int load_super_imsm(struct supertype *st, int fd, char *devname) | |
4896 | { | |
4897 | struct intel_super *super; | |
4898 | int rv; | |
8a3544f8 | 4899 | int retry; |
cdddbdbc | 4900 | |
357ac106 | 4901 | if (test_partition(fd)) |
691c6ee1 N |
4902 | /* IMSM not allowed on partitions */ |
4903 | return 1; | |
4904 | ||
37424f13 DW |
4905 | free_super_imsm(st); |
4906 | ||
49133e57 | 4907 | super = alloc_super(); |
fa7bb6f8 | 4908 | get_dev_sector_size(fd, NULL, &super->sector_size); |
8d67477f TM |
4909 | if (!super) |
4910 | return 1; | |
ea2bc72b LM |
4911 | /* Load hba and capabilities if they exist. |
4912 | * But do not preclude loading metadata in case capabilities or hba are | |
4913 | * non-compliant and ignore_hw_compat is set. | |
4914 | */ | |
d424212e | 4915 | rv = find_intel_hba_capability(fd, super, devname); |
f2f5c343 | 4916 | /* no orom/efi or non-intel hba of the disk */ |
089f9d79 | 4917 | if (rv != 0 && st->ignore_hw_compat == 0) { |
f2f5c343 | 4918 | if (devname) |
e7b84f9d | 4919 | pr_err("No OROM/EFI properties for %s\n", devname); |
f2f5c343 LM |
4920 | free_imsm(super); |
4921 | return 2; | |
4922 | } | |
a2b97981 | 4923 | rv = load_and_parse_mpb(fd, super, devname, 0); |
cdddbdbc | 4924 | |
8a3544f8 AP |
4925 | /* retry the load if we might have raced against mdmon */ |
4926 | if (rv == 3) { | |
f96b1302 AP |
4927 | struct mdstat_ent *mdstat = NULL; |
4928 | char *name = fd2kname(fd); | |
4929 | ||
4930 | if (name) | |
4931 | mdstat = mdstat_by_component(name); | |
8a3544f8 AP |
4932 | |
4933 | if (mdstat && mdmon_running(mdstat->devnm) && getpid() != mdmon_pid(mdstat->devnm)) { | |
4934 | for (retry = 0; retry < 3; retry++) { | |
4935 | usleep(3000); | |
4936 | rv = load_and_parse_mpb(fd, super, devname, 0); | |
4937 | if (rv != 3) | |
4938 | break; | |
4939 | } | |
4940 | } | |
4941 | ||
4942 | free_mdstat(mdstat); | |
4943 | } | |
4944 | ||
cdddbdbc DW |
4945 | if (rv) { |
4946 | if (devname) | |
7a862a02 | 4947 | pr_err("Failed to load all information sections on %s\n", devname); |
cdddbdbc DW |
4948 | free_imsm(super); |
4949 | return rv; | |
4950 | } | |
4951 | ||
4952 | st->sb = super; | |
4953 | if (st->ss == NULL) { | |
4954 | st->ss = &super_imsm; | |
4955 | st->minor_version = 0; | |
4956 | st->max_devs = IMSM_MAX_DEVICES; | |
4957 | } | |
8e59f3d8 AK |
4958 | |
4959 | /* load migration record */ | |
2e062e82 AK |
4960 | if (load_imsm_migr_rec(super, NULL) == 0) { |
4961 | /* Check for unsupported migration features */ | |
4962 | if (check_mpb_migr_compatibility(super) != 0) { | |
e7b84f9d | 4963 | pr_err("Unsupported migration detected"); |
2e062e82 AK |
4964 | if (devname) |
4965 | fprintf(stderr, " on %s\n", devname); | |
4966 | else | |
4967 | fprintf(stderr, " (IMSM).\n"); | |
4968 | return 3; | |
4969 | } | |
e2f41b2c AK |
4970 | } |
4971 | ||
cdddbdbc DW |
4972 | return 0; |
4973 | } | |
4974 | ||
ef6ffade DW |
4975 | static __u16 info_to_blocks_per_strip(mdu_array_info_t *info) |
4976 | { | |
4977 | if (info->level == 1) | |
4978 | return 128; | |
4979 | return info->chunk_size >> 9; | |
4980 | } | |
4981 | ||
5551b113 CA |
4982 | static unsigned long long info_to_blocks_per_member(mdu_array_info_t *info, |
4983 | unsigned long long size) | |
fcfd9599 | 4984 | { |
4025c288 | 4985 | if (info->level == 1) |
5551b113 | 4986 | return size * 2; |
4025c288 | 4987 | else |
5551b113 | 4988 | return (size * 2) & ~(info_to_blocks_per_strip(info) - 1); |
fcfd9599 DW |
4989 | } |
4990 | ||
4d1313e9 DW |
4991 | static void imsm_update_version_info(struct intel_super *super) |
4992 | { | |
4993 | /* update the version and attributes */ | |
4994 | struct imsm_super *mpb = super->anchor; | |
4995 | char *version; | |
4996 | struct imsm_dev *dev; | |
4997 | struct imsm_map *map; | |
4998 | int i; | |
4999 | ||
5000 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
5001 | dev = get_imsm_dev(super, i); | |
238c0a71 | 5002 | map = get_imsm_map(dev, MAP_0); |
4d1313e9 DW |
5003 | if (__le32_to_cpu(dev->size_high) > 0) |
5004 | mpb->attributes |= MPB_ATTRIB_2TB; | |
5005 | ||
5006 | /* FIXME detect when an array spans a port multiplier */ | |
5007 | #if 0 | |
5008 | mpb->attributes |= MPB_ATTRIB_PM; | |
5009 | #endif | |
5010 | ||
5011 | if (mpb->num_raid_devs > 1 || | |
5012 | mpb->attributes != MPB_ATTRIB_CHECKSUM_VERIFY) { | |
5013 | version = MPB_VERSION_ATTRIBS; | |
5014 | switch (get_imsm_raid_level(map)) { | |
5015 | case 0: mpb->attributes |= MPB_ATTRIB_RAID0; break; | |
5016 | case 1: mpb->attributes |= MPB_ATTRIB_RAID1; break; | |
5017 | case 10: mpb->attributes |= MPB_ATTRIB_RAID10; break; | |
5018 | case 5: mpb->attributes |= MPB_ATTRIB_RAID5; break; | |
5019 | } | |
5020 | } else { | |
5021 | if (map->num_members >= 5) | |
5022 | version = MPB_VERSION_5OR6_DISK_ARRAY; | |
5023 | else if (dev->status == DEV_CLONE_N_GO) | |
5024 | version = MPB_VERSION_CNG; | |
5025 | else if (get_imsm_raid_level(map) == 5) | |
5026 | version = MPB_VERSION_RAID5; | |
5027 | else if (map->num_members >= 3) | |
5028 | version = MPB_VERSION_3OR4_DISK_ARRAY; | |
5029 | else if (get_imsm_raid_level(map) == 1) | |
5030 | version = MPB_VERSION_RAID1; | |
5031 | else | |
5032 | version = MPB_VERSION_RAID0; | |
5033 | } | |
5034 | strcpy(((char *) mpb->sig) + strlen(MPB_SIGNATURE), version); | |
5035 | } | |
5036 | } | |
5037 | ||
aa534678 DW |
5038 | static int check_name(struct intel_super *super, char *name, int quiet) |
5039 | { | |
5040 | struct imsm_super *mpb = super->anchor; | |
5041 | char *reason = NULL; | |
5042 | int i; | |
5043 | ||
5044 | if (strlen(name) > MAX_RAID_SERIAL_LEN) | |
5045 | reason = "must be 16 characters or less"; | |
5046 | ||
5047 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
5048 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
5049 | ||
5050 | if (strncmp((char *) dev->volume, name, MAX_RAID_SERIAL_LEN) == 0) { | |
5051 | reason = "already exists"; | |
5052 | break; | |
5053 | } | |
5054 | } | |
5055 | ||
5056 | if (reason && !quiet) | |
e7b84f9d | 5057 | pr_err("imsm volume name %s\n", reason); |
aa534678 DW |
5058 | |
5059 | return !reason; | |
5060 | } | |
5061 | ||
8b353278 DW |
5062 | static int init_super_imsm_volume(struct supertype *st, mdu_array_info_t *info, |
5063 | unsigned long long size, char *name, | |
83cd1e97 N |
5064 | char *homehost, int *uuid, |
5065 | long long data_offset) | |
cdddbdbc | 5066 | { |
c2c087e6 DW |
5067 | /* We are creating a volume inside a pre-existing container. |
5068 | * so st->sb is already set. | |
5069 | */ | |
5070 | struct intel_super *super = st->sb; | |
f36a9ecd | 5071 | unsigned int sector_size = super->sector_size; |
949c47a0 | 5072 | struct imsm_super *mpb = super->anchor; |
ba2de7ba | 5073 | struct intel_dev *dv; |
c2c087e6 DW |
5074 | struct imsm_dev *dev; |
5075 | struct imsm_vol *vol; | |
5076 | struct imsm_map *map; | |
5077 | int idx = mpb->num_raid_devs; | |
5078 | int i; | |
5079 | unsigned long long array_blocks; | |
2c092cad | 5080 | size_t size_old, size_new; |
5551b113 | 5081 | unsigned long long num_data_stripes; |
cdddbdbc | 5082 | |
88c32bb1 | 5083 | if (super->orom && mpb->num_raid_devs >= super->orom->vpa) { |
7a862a02 | 5084 | pr_err("This imsm-container already has the maximum of %d volumes\n", super->orom->vpa); |
c2c087e6 DW |
5085 | return 0; |
5086 | } | |
5087 | ||
2c092cad DW |
5088 | /* ensure the mpb is large enough for the new data */ |
5089 | size_old = __le32_to_cpu(mpb->mpb_size); | |
5090 | size_new = disks_to_mpb_size(info->nr_disks); | |
5091 | if (size_new > size_old) { | |
5092 | void *mpb_new; | |
f36a9ecd | 5093 | size_t size_round = ROUND_UP(size_new, sector_size); |
2c092cad | 5094 | |
f36a9ecd | 5095 | if (posix_memalign(&mpb_new, sector_size, size_round) != 0) { |
e7b84f9d | 5096 | pr_err("could not allocate new mpb\n"); |
2c092cad DW |
5097 | return 0; |
5098 | } | |
de44e46f PB |
5099 | if (posix_memalign(&super->migr_rec_buf, sector_size, |
5100 | MIGR_REC_BUF_SECTORS*sector_size) != 0) { | |
1ade5cc1 | 5101 | pr_err("could not allocate migr_rec buffer\n"); |
8e59f3d8 AK |
5102 | free(super->buf); |
5103 | free(super); | |
ea944c8f | 5104 | free(mpb_new); |
8e59f3d8 AK |
5105 | return 0; |
5106 | } | |
2c092cad DW |
5107 | memcpy(mpb_new, mpb, size_old); |
5108 | free(mpb); | |
5109 | mpb = mpb_new; | |
949c47a0 | 5110 | super->anchor = mpb_new; |
2c092cad DW |
5111 | mpb->mpb_size = __cpu_to_le32(size_new); |
5112 | memset(mpb_new + size_old, 0, size_round - size_old); | |
bbab0940 | 5113 | super->len = size_round; |
2c092cad | 5114 | } |
bf5a934a | 5115 | super->current_vol = idx; |
3960e579 DW |
5116 | |
5117 | /* handle 'failed_disks' by either: | |
5118 | * a) create dummy disk entries in the table if this the first | |
5119 | * volume in the array. We add them here as this is the only | |
5120 | * opportunity to add them. add_to_super_imsm_volume() | |
5121 | * handles the non-failed disks and continues incrementing | |
5122 | * mpb->num_disks. | |
5123 | * b) validate that 'failed_disks' matches the current number | |
5124 | * of missing disks if the container is populated | |
d23fe947 | 5125 | */ |
3960e579 | 5126 | if (super->current_vol == 0) { |
d23fe947 | 5127 | mpb->num_disks = 0; |
3960e579 DW |
5128 | for (i = 0; i < info->failed_disks; i++) { |
5129 | struct imsm_disk *disk; | |
5130 | ||
5131 | mpb->num_disks++; | |
5132 | disk = __get_imsm_disk(mpb, i); | |
5133 | disk->status = CONFIGURED_DISK | FAILED_DISK; | |
5134 | disk->scsi_id = __cpu_to_le32(~(__u32)0); | |
5135 | snprintf((char *) disk->serial, MAX_RAID_SERIAL_LEN, | |
5136 | "missing:%d", i); | |
5137 | } | |
5138 | find_missing(super); | |
5139 | } else { | |
5140 | int missing = 0; | |
5141 | struct dl *d; | |
5142 | ||
5143 | for (d = super->missing; d; d = d->next) | |
5144 | missing++; | |
5145 | if (info->failed_disks > missing) { | |
e7b84f9d | 5146 | pr_err("unable to add 'missing' disk to container\n"); |
3960e579 DW |
5147 | return 0; |
5148 | } | |
5149 | } | |
5a038140 | 5150 | |
aa534678 DW |
5151 | if (!check_name(super, name, 0)) |
5152 | return 0; | |
503975b9 N |
5153 | dv = xmalloc(sizeof(*dv)); |
5154 | dev = xcalloc(1, sizeof(*dev) + sizeof(__u32) * (info->raid_disks - 1)); | |
c2c087e6 | 5155 | strncpy((char *) dev->volume, name, MAX_RAID_SERIAL_LEN); |
e03640bd | 5156 | array_blocks = calc_array_size(info->level, info->raid_disks, |
03bcbc65 | 5157 | info->layout, info->chunk_size, |
5551b113 | 5158 | size * 2); |
979d38be DW |
5159 | /* round array size down to closest MB */ |
5160 | array_blocks = (array_blocks >> SECT_PER_MB_SHIFT) << SECT_PER_MB_SHIFT; | |
5161 | ||
c2c087e6 DW |
5162 | dev->size_low = __cpu_to_le32((__u32) array_blocks); |
5163 | dev->size_high = __cpu_to_le32((__u32) (array_blocks >> 32)); | |
1a2487c2 | 5164 | dev->status = (DEV_READ_COALESCING | DEV_WRITE_COALESCING); |
c2c087e6 DW |
5165 | vol = &dev->vol; |
5166 | vol->migr_state = 0; | |
1484e727 | 5167 | set_migr_type(dev, MIGR_INIT); |
3960e579 | 5168 | vol->dirty = !info->state; |
f8f603f1 | 5169 | vol->curr_migr_unit = 0; |
238c0a71 | 5170 | map = get_imsm_map(dev, MAP_0); |
5551b113 CA |
5171 | set_pba_of_lba0(map, super->create_offset); |
5172 | set_blocks_per_member(map, info_to_blocks_per_member(info, size)); | |
ef6ffade | 5173 | map->blocks_per_strip = __cpu_to_le16(info_to_blocks_per_strip(info)); |
0556e1a2 | 5174 | map->failed_disk_num = ~0; |
bf4442ab | 5175 | if (info->level > 0) |
fffaf1ff N |
5176 | map->map_state = (info->state ? IMSM_T_STATE_NORMAL |
5177 | : IMSM_T_STATE_UNINITIALIZED); | |
bf4442ab AK |
5178 | else |
5179 | map->map_state = info->failed_disks ? IMSM_T_STATE_FAILED : | |
5180 | IMSM_T_STATE_NORMAL; | |
252d23c0 | 5181 | map->ddf = 1; |
ef6ffade DW |
5182 | |
5183 | if (info->level == 1 && info->raid_disks > 2) { | |
38950822 AW |
5184 | free(dev); |
5185 | free(dv); | |
7a862a02 | 5186 | pr_err("imsm does not support more than 2 disksin a raid1 volume\n"); |
ef6ffade DW |
5187 | return 0; |
5188 | } | |
81062a36 DW |
5189 | |
5190 | map->raid_level = info->level; | |
4d1313e9 | 5191 | if (info->level == 10) { |
c2c087e6 | 5192 | map->raid_level = 1; |
4d1313e9 | 5193 | map->num_domains = info->raid_disks / 2; |
81062a36 DW |
5194 | } else if (info->level == 1) |
5195 | map->num_domains = info->raid_disks; | |
5196 | else | |
ff596308 | 5197 | map->num_domains = 1; |
81062a36 | 5198 | |
5551b113 CA |
5199 | /* info->size is only int so use the 'size' parameter instead */ |
5200 | num_data_stripes = (size * 2) / info_to_blocks_per_strip(info); | |
5201 | num_data_stripes /= map->num_domains; | |
5202 | set_num_data_stripes(map, num_data_stripes); | |
ef6ffade | 5203 | |
c2c087e6 DW |
5204 | map->num_members = info->raid_disks; |
5205 | for (i = 0; i < map->num_members; i++) { | |
5206 | /* initialized in add_to_super */ | |
4eb26970 | 5207 | set_imsm_ord_tbl_ent(map, i, IMSM_ORD_REBUILD); |
c2c087e6 | 5208 | } |
949c47a0 | 5209 | mpb->num_raid_devs++; |
ba2de7ba DW |
5210 | |
5211 | dv->dev = dev; | |
5212 | dv->index = super->current_vol; | |
5213 | dv->next = super->devlist; | |
5214 | super->devlist = dv; | |
c2c087e6 | 5215 | |
4d1313e9 DW |
5216 | imsm_update_version_info(super); |
5217 | ||
c2c087e6 | 5218 | return 1; |
cdddbdbc DW |
5219 | } |
5220 | ||
bf5a934a DW |
5221 | static int init_super_imsm(struct supertype *st, mdu_array_info_t *info, |
5222 | unsigned long long size, char *name, | |
83cd1e97 N |
5223 | char *homehost, int *uuid, |
5224 | unsigned long long data_offset) | |
bf5a934a DW |
5225 | { |
5226 | /* This is primarily called by Create when creating a new array. | |
5227 | * We will then get add_to_super called for each component, and then | |
5228 | * write_init_super called to write it out to each device. | |
5229 | * For IMSM, Create can create on fresh devices or on a pre-existing | |
5230 | * array. | |
5231 | * To create on a pre-existing array a different method will be called. | |
5232 | * This one is just for fresh drives. | |
5233 | */ | |
5234 | struct intel_super *super; | |
5235 | struct imsm_super *mpb; | |
5236 | size_t mpb_size; | |
4d1313e9 | 5237 | char *version; |
bf5a934a | 5238 | |
83cd1e97 | 5239 | if (data_offset != INVALID_SECTORS) { |
ed503f89 | 5240 | pr_err("data-offset not supported by imsm\n"); |
83cd1e97 N |
5241 | return 0; |
5242 | } | |
5243 | ||
bf5a934a | 5244 | if (st->sb) |
83cd1e97 N |
5245 | return init_super_imsm_volume(st, info, size, name, homehost, uuid, |
5246 | data_offset); | |
e683ca88 DW |
5247 | |
5248 | if (info) | |
5249 | mpb_size = disks_to_mpb_size(info->nr_disks); | |
5250 | else | |
f36a9ecd | 5251 | mpb_size = MAX_SECTOR_SIZE; |
bf5a934a | 5252 | |
49133e57 | 5253 | super = alloc_super(); |
f36a9ecd PB |
5254 | if (super && |
5255 | posix_memalign(&super->buf, MAX_SECTOR_SIZE, mpb_size) != 0) { | |
8d67477f | 5256 | free_imsm(super); |
e683ca88 DW |
5257 | super = NULL; |
5258 | } | |
5259 | if (!super) { | |
1ade5cc1 | 5260 | pr_err("could not allocate superblock\n"); |
bf5a934a DW |
5261 | return 0; |
5262 | } | |
de44e46f PB |
5263 | if (posix_memalign(&super->migr_rec_buf, MAX_SECTOR_SIZE, |
5264 | MIGR_REC_BUF_SECTORS*MAX_SECTOR_SIZE) != 0) { | |
1ade5cc1 | 5265 | pr_err("could not allocate migr_rec buffer\n"); |
8e59f3d8 | 5266 | free(super->buf); |
8d67477f | 5267 | free_imsm(super); |
8e59f3d8 AK |
5268 | return 0; |
5269 | } | |
e683ca88 | 5270 | memset(super->buf, 0, mpb_size); |
ef649044 | 5271 | mpb = super->buf; |
e683ca88 DW |
5272 | mpb->mpb_size = __cpu_to_le32(mpb_size); |
5273 | st->sb = super; | |
5274 | ||
5275 | if (info == NULL) { | |
5276 | /* zeroing superblock */ | |
5277 | return 0; | |
5278 | } | |
bf5a934a | 5279 | |
4d1313e9 DW |
5280 | mpb->attributes = MPB_ATTRIB_CHECKSUM_VERIFY; |
5281 | ||
5282 | version = (char *) mpb->sig; | |
5283 | strcpy(version, MPB_SIGNATURE); | |
5284 | version += strlen(MPB_SIGNATURE); | |
5285 | strcpy(version, MPB_VERSION_RAID0); | |
bf5a934a | 5286 | |
bf5a934a DW |
5287 | return 1; |
5288 | } | |
5289 | ||
0e600426 | 5290 | #ifndef MDASSEMBLE |
f20c3968 | 5291 | static int add_to_super_imsm_volume(struct supertype *st, mdu_disk_info_t *dk, |
bf5a934a DW |
5292 | int fd, char *devname) |
5293 | { | |
5294 | struct intel_super *super = st->sb; | |
d23fe947 | 5295 | struct imsm_super *mpb = super->anchor; |
3960e579 | 5296 | struct imsm_disk *_disk; |
bf5a934a DW |
5297 | struct imsm_dev *dev; |
5298 | struct imsm_map *map; | |
3960e579 | 5299 | struct dl *dl, *df; |
4eb26970 | 5300 | int slot; |
bf5a934a | 5301 | |
949c47a0 | 5302 | dev = get_imsm_dev(super, super->current_vol); |
238c0a71 | 5303 | map = get_imsm_map(dev, MAP_0); |
bf5a934a | 5304 | |
208933a7 | 5305 | if (! (dk->state & (1<<MD_DISK_SYNC))) { |
e7b84f9d | 5306 | pr_err("%s: Cannot add spare devices to IMSM volume\n", |
208933a7 N |
5307 | devname); |
5308 | return 1; | |
5309 | } | |
5310 | ||
efb30e7f DW |
5311 | if (fd == -1) { |
5312 | /* we're doing autolayout so grab the pre-marked (in | |
5313 | * validate_geometry) raid_disk | |
5314 | */ | |
5315 | for (dl = super->disks; dl; dl = dl->next) | |
5316 | if (dl->raiddisk == dk->raid_disk) | |
5317 | break; | |
5318 | } else { | |
5319 | for (dl = super->disks; dl ; dl = dl->next) | |
5320 | if (dl->major == dk->major && | |
5321 | dl->minor == dk->minor) | |
5322 | break; | |
5323 | } | |
d23fe947 | 5324 | |
208933a7 | 5325 | if (!dl) { |
e7b84f9d | 5326 | pr_err("%s is not a member of the same container\n", devname); |
f20c3968 | 5327 | return 1; |
208933a7 | 5328 | } |
bf5a934a | 5329 | |
d23fe947 DW |
5330 | /* add a pristine spare to the metadata */ |
5331 | if (dl->index < 0) { | |
5332 | dl->index = super->anchor->num_disks; | |
5333 | super->anchor->num_disks++; | |
5334 | } | |
4eb26970 DW |
5335 | /* Check the device has not already been added */ |
5336 | slot = get_imsm_disk_slot(map, dl->index); | |
5337 | if (slot >= 0 && | |
238c0a71 | 5338 | (get_imsm_ord_tbl_ent(dev, slot, MAP_X) & IMSM_ORD_REBUILD) == 0) { |
e7b84f9d | 5339 | pr_err("%s has been included in this array twice\n", |
4eb26970 DW |
5340 | devname); |
5341 | return 1; | |
5342 | } | |
656b6b5a | 5343 | set_imsm_ord_tbl_ent(map, dk->raid_disk, dl->index); |
ee5aad5a | 5344 | dl->disk.status = CONFIGURED_DISK; |
d23fe947 | 5345 | |
3960e579 DW |
5346 | /* update size of 'missing' disks to be at least as large as the |
5347 | * largest acitve member (we only have dummy missing disks when | |
5348 | * creating the first volume) | |
5349 | */ | |
5350 | if (super->current_vol == 0) { | |
5351 | for (df = super->missing; df; df = df->next) { | |
5551b113 CA |
5352 | if (total_blocks(&dl->disk) > total_blocks(&df->disk)) |
5353 | set_total_blocks(&df->disk, total_blocks(&dl->disk)); | |
3960e579 DW |
5354 | _disk = __get_imsm_disk(mpb, df->index); |
5355 | *_disk = df->disk; | |
5356 | } | |
5357 | } | |
5358 | ||
5359 | /* refresh unset/failed slots to point to valid 'missing' entries */ | |
5360 | for (df = super->missing; df; df = df->next) | |
5361 | for (slot = 0; slot < mpb->num_disks; slot++) { | |
238c0a71 | 5362 | __u32 ord = get_imsm_ord_tbl_ent(dev, slot, MAP_X); |
3960e579 DW |
5363 | |
5364 | if ((ord & IMSM_ORD_REBUILD) == 0) | |
5365 | continue; | |
5366 | set_imsm_ord_tbl_ent(map, slot, df->index | IMSM_ORD_REBUILD); | |
1ace8403 | 5367 | if (is_gen_migration(dev)) { |
238c0a71 AK |
5368 | struct imsm_map *map2 = get_imsm_map(dev, |
5369 | MAP_1); | |
0a108d63 | 5370 | int slot2 = get_imsm_disk_slot(map2, df->index); |
089f9d79 | 5371 | if (slot2 < map2->num_members && slot2 >= 0) { |
1ace8403 | 5372 | __u32 ord2 = get_imsm_ord_tbl_ent(dev, |
238c0a71 AK |
5373 | slot2, |
5374 | MAP_1); | |
1ace8403 AK |
5375 | if ((unsigned)df->index == |
5376 | ord_to_idx(ord2)) | |
5377 | set_imsm_ord_tbl_ent(map2, | |
0a108d63 | 5378 | slot2, |
1ace8403 AK |
5379 | df->index | |
5380 | IMSM_ORD_REBUILD); | |
5381 | } | |
5382 | } | |
3960e579 DW |
5383 | dprintf("set slot:%d to missing disk:%d\n", slot, df->index); |
5384 | break; | |
5385 | } | |
5386 | ||
d23fe947 DW |
5387 | /* if we are creating the first raid device update the family number */ |
5388 | if (super->current_vol == 0) { | |
5389 | __u32 sum; | |
5390 | struct imsm_dev *_dev = __get_imsm_dev(mpb, 0); | |
d23fe947 | 5391 | |
3960e579 | 5392 | _disk = __get_imsm_disk(mpb, dl->index); |
791b666a | 5393 | if (!_dev || !_disk) { |
e7b84f9d | 5394 | pr_err("BUG mpb setup error\n"); |
791b666a AW |
5395 | return 1; |
5396 | } | |
d23fe947 DW |
5397 | *_dev = *dev; |
5398 | *_disk = dl->disk; | |
148acb7b DW |
5399 | sum = random32(); |
5400 | sum += __gen_imsm_checksum(mpb); | |
d23fe947 | 5401 | mpb->family_num = __cpu_to_le32(sum); |
148acb7b | 5402 | mpb->orig_family_num = mpb->family_num; |
d23fe947 | 5403 | } |
ca0748fa | 5404 | super->current_disk = dl; |
f20c3968 | 5405 | return 0; |
bf5a934a DW |
5406 | } |
5407 | ||
a8619d23 AK |
5408 | /* mark_spare() |
5409 | * Function marks disk as spare and restores disk serial | |
5410 | * in case it was previously marked as failed by takeover operation | |
5411 | * reruns: | |
5412 | * -1 : critical error | |
5413 | * 0 : disk is marked as spare but serial is not set | |
5414 | * 1 : success | |
5415 | */ | |
5416 | int mark_spare(struct dl *disk) | |
5417 | { | |
5418 | __u8 serial[MAX_RAID_SERIAL_LEN]; | |
5419 | int ret_val = -1; | |
5420 | ||
5421 | if (!disk) | |
5422 | return ret_val; | |
5423 | ||
5424 | ret_val = 0; | |
5425 | if (!imsm_read_serial(disk->fd, NULL, serial)) { | |
5426 | /* Restore disk serial number, because takeover marks disk | |
5427 | * as failed and adds to serial ':0' before it becomes | |
5428 | * a spare disk. | |
5429 | */ | |
5430 | serialcpy(disk->serial, serial); | |
5431 | serialcpy(disk->disk.serial, serial); | |
5432 | ret_val = 1; | |
5433 | } | |
5434 | disk->disk.status = SPARE_DISK; | |
5435 | disk->index = -1; | |
5436 | ||
5437 | return ret_val; | |
5438 | } | |
88654014 | 5439 | |
f20c3968 | 5440 | static int add_to_super_imsm(struct supertype *st, mdu_disk_info_t *dk, |
72ca9bcf N |
5441 | int fd, char *devname, |
5442 | unsigned long long data_offset) | |
cdddbdbc | 5443 | { |
c2c087e6 | 5444 | struct intel_super *super = st->sb; |
c2c087e6 DW |
5445 | struct dl *dd; |
5446 | unsigned long long size; | |
fa7bb6f8 | 5447 | unsigned int member_sector_size; |
f2f27e63 | 5448 | __u32 id; |
c2c087e6 DW |
5449 | int rv; |
5450 | struct stat stb; | |
5451 | ||
88654014 LM |
5452 | /* If we are on an RAID enabled platform check that the disk is |
5453 | * attached to the raid controller. | |
5454 | * We do not need to test disks attachment for container based additions, | |
5455 | * they shall be already tested when container was created/assembled. | |
88c32bb1 | 5456 | */ |
d424212e | 5457 | rv = find_intel_hba_capability(fd, super, devname); |
f2f5c343 | 5458 | /* no orom/efi or non-intel hba of the disk */ |
f0f5a016 LM |
5459 | if (rv != 0) { |
5460 | dprintf("capability: %p fd: %d ret: %d\n", | |
5461 | super->orom, fd, rv); | |
5462 | return 1; | |
88c32bb1 DW |
5463 | } |
5464 | ||
f20c3968 DW |
5465 | if (super->current_vol >= 0) |
5466 | return add_to_super_imsm_volume(st, dk, fd, devname); | |
bf5a934a | 5467 | |
c2c087e6 | 5468 | fstat(fd, &stb); |
503975b9 | 5469 | dd = xcalloc(sizeof(*dd), 1); |
c2c087e6 DW |
5470 | dd->major = major(stb.st_rdev); |
5471 | dd->minor = minor(stb.st_rdev); | |
503975b9 | 5472 | dd->devname = devname ? xstrdup(devname) : NULL; |
c2c087e6 | 5473 | dd->fd = fd; |
689c9bf3 | 5474 | dd->e = NULL; |
1a64be56 | 5475 | dd->action = DISK_ADD; |
c2c087e6 | 5476 | rv = imsm_read_serial(fd, devname, dd->serial); |
32ba9157 | 5477 | if (rv) { |
e7b84f9d | 5478 | pr_err("failed to retrieve scsi serial, aborting\n"); |
20bee0f8 PB |
5479 | if (dd->devname) |
5480 | free(dd->devname); | |
949c47a0 | 5481 | free(dd); |
0030e8d6 | 5482 | abort(); |
c2c087e6 | 5483 | } |
20bee0f8 PB |
5484 | if (super->hba && ((super->hba->type == SYS_DEV_NVME) || |
5485 | (super->hba->type == SYS_DEV_VMD))) { | |
5486 | int i; | |
5487 | char *devpath = diskfd_to_devpath(fd); | |
5488 | char controller_path[PATH_MAX]; | |
5489 | ||
5490 | if (!devpath) { | |
5491 | pr_err("failed to get devpath, aborting\n"); | |
5492 | if (dd->devname) | |
5493 | free(dd->devname); | |
5494 | free(dd); | |
5495 | return 1; | |
5496 | } | |
5497 | ||
5498 | snprintf(controller_path, PATH_MAX-1, "%s/device", devpath); | |
5499 | free(devpath); | |
5500 | ||
5501 | if (devpath_to_vendor(controller_path) == 0x8086) { | |
5502 | /* | |
5503 | * If Intel's NVMe drive has serial ended with | |
5504 | * "-A","-B","-1" or "-2" it means that this is "x8" | |
5505 | * device (double drive on single PCIe card). | |
5506 | * User should be warned about potential data loss. | |
5507 | */ | |
5508 | for (i = MAX_RAID_SERIAL_LEN-1; i > 0; i--) { | |
5509 | /* Skip empty character at the end */ | |
5510 | if (dd->serial[i] == 0) | |
5511 | continue; | |
5512 | ||
5513 | if (((dd->serial[i] == 'A') || | |
5514 | (dd->serial[i] == 'B') || | |
5515 | (dd->serial[i] == '1') || | |
5516 | (dd->serial[i] == '2')) && | |
5517 | (dd->serial[i-1] == '-')) | |
5518 | pr_err("\tThe action you are about to take may put your data at risk.\n" | |
5519 | "\tPlease note that x8 devices may consist of two separate x4 devices " | |
5520 | "located on a single PCIe port.\n" | |
5521 | "\tRAID 0 is the only supported configuration for this type of x8 device.\n"); | |
5522 | break; | |
5523 | } | |
5524 | } | |
5525 | } | |
c2c087e6 | 5526 | |
c2c087e6 | 5527 | get_dev_size(fd, NULL, &size); |
fa7bb6f8 PB |
5528 | get_dev_sector_size(fd, NULL, &member_sector_size); |
5529 | ||
5530 | if (super->sector_size == 0) { | |
5531 | /* this a first device, so sector_size is not set yet */ | |
5532 | super->sector_size = member_sector_size; | |
5533 | } else if (member_sector_size != super->sector_size) { | |
5534 | pr_err("Mixing between different sector size is forbidden, aborting...\n"); | |
5535 | if (dd->devname) | |
5536 | free(dd->devname); | |
5537 | free(dd); | |
5538 | return 1; | |
5539 | } | |
5540 | ||
71e5411e | 5541 | /* clear migr_rec when adding disk to container */ |
de44e46f PB |
5542 | memset(super->migr_rec_buf, 0, MIGR_REC_BUF_SECTORS*super->sector_size); |
5543 | if (lseek64(fd, size - MIGR_REC_SECTOR_POSITION*super->sector_size, | |
5544 | SEEK_SET) >= 0) { | |
71e5411e | 5545 | if (write(fd, super->migr_rec_buf, |
de44e46f PB |
5546 | MIGR_REC_BUF_SECTORS*super->sector_size) != |
5547 | MIGR_REC_BUF_SECTORS*super->sector_size) | |
71e5411e PB |
5548 | perror("Write migr_rec failed"); |
5549 | } | |
5550 | ||
c2c087e6 | 5551 | size /= 512; |
1f24f035 | 5552 | serialcpy(dd->disk.serial, dd->serial); |
5551b113 CA |
5553 | set_total_blocks(&dd->disk, size); |
5554 | if (__le32_to_cpu(dd->disk.total_blocks_hi) > 0) { | |
5555 | struct imsm_super *mpb = super->anchor; | |
5556 | mpb->attributes |= MPB_ATTRIB_2TB_DISK; | |
5557 | } | |
a8619d23 | 5558 | mark_spare(dd); |
c2c087e6 | 5559 | if (sysfs_disk_to_scsi_id(fd, &id) == 0) |
b9f594fe | 5560 | dd->disk.scsi_id = __cpu_to_le32(id); |
c2c087e6 | 5561 | else |
b9f594fe | 5562 | dd->disk.scsi_id = __cpu_to_le32(0); |
43dad3d6 DW |
5563 | |
5564 | if (st->update_tail) { | |
1a64be56 LM |
5565 | dd->next = super->disk_mgmt_list; |
5566 | super->disk_mgmt_list = dd; | |
43dad3d6 DW |
5567 | } else { |
5568 | dd->next = super->disks; | |
5569 | super->disks = dd; | |
ceaf0ee1 | 5570 | super->updates_pending++; |
43dad3d6 | 5571 | } |
f20c3968 DW |
5572 | |
5573 | return 0; | |
cdddbdbc DW |
5574 | } |
5575 | ||
1a64be56 LM |
5576 | static int remove_from_super_imsm(struct supertype *st, mdu_disk_info_t *dk) |
5577 | { | |
5578 | struct intel_super *super = st->sb; | |
5579 | struct dl *dd; | |
5580 | ||
5581 | /* remove from super works only in mdmon - for communication | |
5582 | * manager - monitor. Check if communication memory buffer | |
5583 | * is prepared. | |
5584 | */ | |
5585 | if (!st->update_tail) { | |
1ade5cc1 | 5586 | pr_err("shall be used in mdmon context only\n"); |
1a64be56 LM |
5587 | return 1; |
5588 | } | |
503975b9 | 5589 | dd = xcalloc(1, sizeof(*dd)); |
1a64be56 LM |
5590 | dd->major = dk->major; |
5591 | dd->minor = dk->minor; | |
1a64be56 | 5592 | dd->fd = -1; |
a8619d23 | 5593 | mark_spare(dd); |
1a64be56 LM |
5594 | dd->action = DISK_REMOVE; |
5595 | ||
5596 | dd->next = super->disk_mgmt_list; | |
5597 | super->disk_mgmt_list = dd; | |
5598 | ||
1a64be56 LM |
5599 | return 0; |
5600 | } | |
5601 | ||
f796af5d DW |
5602 | static int store_imsm_mpb(int fd, struct imsm_super *mpb); |
5603 | ||
5604 | static union { | |
f36a9ecd | 5605 | char buf[MAX_SECTOR_SIZE]; |
f796af5d | 5606 | struct imsm_super anchor; |
f36a9ecd | 5607 | } spare_record __attribute__ ((aligned(MAX_SECTOR_SIZE))); |
c2c087e6 | 5608 | |
d23fe947 DW |
5609 | /* spare records have their own family number and do not have any defined raid |
5610 | * devices | |
5611 | */ | |
5612 | static int write_super_imsm_spares(struct intel_super *super, int doclose) | |
5613 | { | |
d23fe947 | 5614 | struct imsm_super *mpb = super->anchor; |
f796af5d | 5615 | struct imsm_super *spare = &spare_record.anchor; |
d23fe947 DW |
5616 | __u32 sum; |
5617 | struct dl *d; | |
5618 | ||
68641cdb JS |
5619 | spare->mpb_size = __cpu_to_le32(sizeof(struct imsm_super)); |
5620 | spare->generation_num = __cpu_to_le32(1UL); | |
f796af5d | 5621 | spare->attributes = MPB_ATTRIB_CHECKSUM_VERIFY; |
68641cdb JS |
5622 | spare->num_disks = 1; |
5623 | spare->num_raid_devs = 0; | |
5624 | spare->cache_size = mpb->cache_size; | |
5625 | spare->pwr_cycle_count = __cpu_to_le32(1); | |
f796af5d DW |
5626 | |
5627 | snprintf((char *) spare->sig, MAX_SIGNATURE_LENGTH, | |
5628 | MPB_SIGNATURE MPB_VERSION_RAID0); | |
d23fe947 DW |
5629 | |
5630 | for (d = super->disks; d; d = d->next) { | |
8796fdc4 | 5631 | if (d->index != -1) |
d23fe947 DW |
5632 | continue; |
5633 | ||
f796af5d | 5634 | spare->disk[0] = d->disk; |
027c374f CA |
5635 | if (__le32_to_cpu(d->disk.total_blocks_hi) > 0) |
5636 | spare->attributes |= MPB_ATTRIB_2TB_DISK; | |
5637 | ||
f36a9ecd PB |
5638 | if (super->sector_size == 4096) |
5639 | convert_to_4k_imsm_disk(&spare->disk[0]); | |
5640 | ||
f796af5d DW |
5641 | sum = __gen_imsm_checksum(spare); |
5642 | spare->family_num = __cpu_to_le32(sum); | |
5643 | spare->orig_family_num = 0; | |
5644 | sum = __gen_imsm_checksum(spare); | |
5645 | spare->check_sum = __cpu_to_le32(sum); | |
d23fe947 | 5646 | |
f796af5d | 5647 | if (store_imsm_mpb(d->fd, spare)) { |
1ade5cc1 N |
5648 | pr_err("failed for device %d:%d %s\n", |
5649 | d->major, d->minor, strerror(errno)); | |
e74255d9 | 5650 | return 1; |
d23fe947 DW |
5651 | } |
5652 | if (doclose) { | |
5653 | close(d->fd); | |
5654 | d->fd = -1; | |
5655 | } | |
5656 | } | |
5657 | ||
e74255d9 | 5658 | return 0; |
d23fe947 DW |
5659 | } |
5660 | ||
36988a3d | 5661 | static int write_super_imsm(struct supertype *st, int doclose) |
cdddbdbc | 5662 | { |
36988a3d | 5663 | struct intel_super *super = st->sb; |
f36a9ecd | 5664 | unsigned int sector_size = super->sector_size; |
949c47a0 | 5665 | struct imsm_super *mpb = super->anchor; |
c2c087e6 DW |
5666 | struct dl *d; |
5667 | __u32 generation; | |
5668 | __u32 sum; | |
d23fe947 | 5669 | int spares = 0; |
949c47a0 | 5670 | int i; |
a48ac0a8 | 5671 | __u32 mpb_size = sizeof(struct imsm_super) - sizeof(struct imsm_disk); |
36988a3d | 5672 | int num_disks = 0; |
146c6260 | 5673 | int clear_migration_record = 1; |
bbab0940 | 5674 | __u32 bbm_log_size; |
cdddbdbc | 5675 | |
c2c087e6 DW |
5676 | /* 'generation' is incremented everytime the metadata is written */ |
5677 | generation = __le32_to_cpu(mpb->generation_num); | |
5678 | generation++; | |
5679 | mpb->generation_num = __cpu_to_le32(generation); | |
5680 | ||
148acb7b DW |
5681 | /* fix up cases where previous mdadm releases failed to set |
5682 | * orig_family_num | |
5683 | */ | |
5684 | if (mpb->orig_family_num == 0) | |
5685 | mpb->orig_family_num = mpb->family_num; | |
5686 | ||
d23fe947 | 5687 | for (d = super->disks; d; d = d->next) { |
8796fdc4 | 5688 | if (d->index == -1) |
d23fe947 | 5689 | spares++; |
36988a3d | 5690 | else { |
d23fe947 | 5691 | mpb->disk[d->index] = d->disk; |
36988a3d AK |
5692 | num_disks++; |
5693 | } | |
d23fe947 | 5694 | } |
36988a3d | 5695 | for (d = super->missing; d; d = d->next) { |
47ee5a45 | 5696 | mpb->disk[d->index] = d->disk; |
36988a3d AK |
5697 | num_disks++; |
5698 | } | |
5699 | mpb->num_disks = num_disks; | |
5700 | mpb_size += sizeof(struct imsm_disk) * mpb->num_disks; | |
b9f594fe | 5701 | |
949c47a0 DW |
5702 | for (i = 0; i < mpb->num_raid_devs; i++) { |
5703 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
36988a3d AK |
5704 | struct imsm_dev *dev2 = get_imsm_dev(super, i); |
5705 | if (dev && dev2) { | |
5706 | imsm_copy_dev(dev, dev2); | |
5707 | mpb_size += sizeof_imsm_dev(dev, 0); | |
5708 | } | |
146c6260 AK |
5709 | if (is_gen_migration(dev2)) |
5710 | clear_migration_record = 0; | |
949c47a0 | 5711 | } |
bbab0940 TM |
5712 | |
5713 | bbm_log_size = get_imsm_bbm_log_size(super->bbm_log); | |
5714 | ||
5715 | if (bbm_log_size) { | |
5716 | memcpy((void *)mpb + mpb_size, super->bbm_log, bbm_log_size); | |
5717 | mpb->attributes |= MPB_ATTRIB_BBM; | |
5718 | } else | |
5719 | mpb->attributes &= ~MPB_ATTRIB_BBM; | |
5720 | ||
5721 | super->anchor->bbm_log_size = __cpu_to_le32(bbm_log_size); | |
5722 | mpb_size += bbm_log_size; | |
a48ac0a8 | 5723 | mpb->mpb_size = __cpu_to_le32(mpb_size); |
949c47a0 | 5724 | |
bbab0940 TM |
5725 | #ifdef DEBUG |
5726 | assert(super->len == 0 || mpb_size <= super->len); | |
5727 | #endif | |
5728 | ||
c2c087e6 | 5729 | /* recalculate checksum */ |
949c47a0 | 5730 | sum = __gen_imsm_checksum(mpb); |
c2c087e6 DW |
5731 | mpb->check_sum = __cpu_to_le32(sum); |
5732 | ||
51d83f5d AK |
5733 | if (super->clean_migration_record_by_mdmon) { |
5734 | clear_migration_record = 1; | |
5735 | super->clean_migration_record_by_mdmon = 0; | |
5736 | } | |
146c6260 | 5737 | if (clear_migration_record) |
de44e46f PB |
5738 | memset(super->migr_rec_buf, 0, |
5739 | MIGR_REC_BUF_SECTORS*sector_size); | |
146c6260 | 5740 | |
f36a9ecd PB |
5741 | if (sector_size == 4096) |
5742 | convert_to_4k(super); | |
5743 | ||
d23fe947 | 5744 | /* write the mpb for disks that compose raid devices */ |
c2c087e6 | 5745 | for (d = super->disks; d ; d = d->next) { |
86c54047 | 5746 | if (d->index < 0 || is_failed(&d->disk)) |
d23fe947 | 5747 | continue; |
30602f53 | 5748 | |
146c6260 AK |
5749 | if (clear_migration_record) { |
5750 | unsigned long long dsize; | |
5751 | ||
5752 | get_dev_size(d->fd, NULL, &dsize); | |
de44e46f PB |
5753 | if (lseek64(d->fd, dsize - sector_size, |
5754 | SEEK_SET) >= 0) { | |
17a4eaf9 | 5755 | if (write(d->fd, super->migr_rec_buf, |
de44e46f PB |
5756 | MIGR_REC_BUF_SECTORS*sector_size) != |
5757 | MIGR_REC_BUF_SECTORS*sector_size) | |
9e2d750d | 5758 | perror("Write migr_rec failed"); |
146c6260 AK |
5759 | } |
5760 | } | |
51d83f5d AK |
5761 | |
5762 | if (store_imsm_mpb(d->fd, mpb)) | |
5763 | fprintf(stderr, | |
1ade5cc1 N |
5764 | "failed for device %d:%d (fd: %d)%s\n", |
5765 | d->major, d->minor, | |
51d83f5d AK |
5766 | d->fd, strerror(errno)); |
5767 | ||
c2c087e6 DW |
5768 | if (doclose) { |
5769 | close(d->fd); | |
5770 | d->fd = -1; | |
5771 | } | |
5772 | } | |
5773 | ||
d23fe947 DW |
5774 | if (spares) |
5775 | return write_super_imsm_spares(super, doclose); | |
5776 | ||
e74255d9 | 5777 | return 0; |
c2c087e6 DW |
5778 | } |
5779 | ||
9b1fb677 | 5780 | static int create_array(struct supertype *st, int dev_idx) |
43dad3d6 DW |
5781 | { |
5782 | size_t len; | |
5783 | struct imsm_update_create_array *u; | |
5784 | struct intel_super *super = st->sb; | |
9b1fb677 | 5785 | struct imsm_dev *dev = get_imsm_dev(super, dev_idx); |
238c0a71 | 5786 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
54c2c1ea DW |
5787 | struct disk_info *inf; |
5788 | struct imsm_disk *disk; | |
5789 | int i; | |
43dad3d6 | 5790 | |
54c2c1ea DW |
5791 | len = sizeof(*u) - sizeof(*dev) + sizeof_imsm_dev(dev, 0) + |
5792 | sizeof(*inf) * map->num_members; | |
503975b9 | 5793 | u = xmalloc(len); |
43dad3d6 | 5794 | u->type = update_create_array; |
9b1fb677 | 5795 | u->dev_idx = dev_idx; |
43dad3d6 | 5796 | imsm_copy_dev(&u->dev, dev); |
54c2c1ea DW |
5797 | inf = get_disk_info(u); |
5798 | for (i = 0; i < map->num_members; i++) { | |
238c0a71 | 5799 | int idx = get_imsm_disk_idx(dev, i, MAP_X); |
9b1fb677 | 5800 | |
54c2c1ea | 5801 | disk = get_imsm_disk(super, idx); |
1ca5c8e0 N |
5802 | if (!disk) |
5803 | disk = get_imsm_missing(super, idx); | |
54c2c1ea DW |
5804 | serialcpy(inf[i].serial, disk->serial); |
5805 | } | |
43dad3d6 DW |
5806 | append_metadata_update(st, u, len); |
5807 | ||
5808 | return 0; | |
5809 | } | |
5810 | ||
1a64be56 | 5811 | static int mgmt_disk(struct supertype *st) |
43dad3d6 DW |
5812 | { |
5813 | struct intel_super *super = st->sb; | |
5814 | size_t len; | |
1a64be56 | 5815 | struct imsm_update_add_remove_disk *u; |
43dad3d6 | 5816 | |
1a64be56 | 5817 | if (!super->disk_mgmt_list) |
43dad3d6 DW |
5818 | return 0; |
5819 | ||
5820 | len = sizeof(*u); | |
503975b9 | 5821 | u = xmalloc(len); |
1a64be56 | 5822 | u->type = update_add_remove_disk; |
43dad3d6 DW |
5823 | append_metadata_update(st, u, len); |
5824 | ||
5825 | return 0; | |
5826 | } | |
5827 | ||
c2c087e6 DW |
5828 | static int write_init_super_imsm(struct supertype *st) |
5829 | { | |
9b1fb677 DW |
5830 | struct intel_super *super = st->sb; |
5831 | int current_vol = super->current_vol; | |
5832 | ||
5833 | /* we are done with current_vol reset it to point st at the container */ | |
5834 | super->current_vol = -1; | |
5835 | ||
8273f55e | 5836 | if (st->update_tail) { |
43dad3d6 DW |
5837 | /* queue the recently created array / added disk |
5838 | * as a metadata update */ | |
43dad3d6 | 5839 | int rv; |
8273f55e | 5840 | |
43dad3d6 | 5841 | /* determine if we are creating a volume or adding a disk */ |
9b1fb677 | 5842 | if (current_vol < 0) { |
1a64be56 LM |
5843 | /* in the mgmt (add/remove) disk case we are running |
5844 | * in mdmon context, so don't close fd's | |
43dad3d6 | 5845 | */ |
1a64be56 | 5846 | return mgmt_disk(st); |
43dad3d6 | 5847 | } else |
9b1fb677 | 5848 | rv = create_array(st, current_vol); |
8273f55e | 5849 | |
43dad3d6 | 5850 | return rv; |
d682f344 N |
5851 | } else { |
5852 | struct dl *d; | |
5853 | for (d = super->disks; d; d = d->next) | |
ba728be7 | 5854 | Kill(d->devname, NULL, 0, -1, 1); |
36988a3d | 5855 | return write_super_imsm(st, 1); |
d682f344 | 5856 | } |
cdddbdbc | 5857 | } |
0e600426 | 5858 | #endif |
cdddbdbc | 5859 | |
e683ca88 | 5860 | static int store_super_imsm(struct supertype *st, int fd) |
cdddbdbc | 5861 | { |
e683ca88 DW |
5862 | struct intel_super *super = st->sb; |
5863 | struct imsm_super *mpb = super ? super->anchor : NULL; | |
551c80c1 | 5864 | |
e683ca88 | 5865 | if (!mpb) |
ad97895e DW |
5866 | return 1; |
5867 | ||
1799c9e8 | 5868 | #ifndef MDASSEMBLE |
f36a9ecd PB |
5869 | if (super->sector_size == 4096) |
5870 | convert_to_4k(super); | |
e683ca88 | 5871 | return store_imsm_mpb(fd, mpb); |
1799c9e8 N |
5872 | #else |
5873 | return 1; | |
5874 | #endif | |
cdddbdbc DW |
5875 | } |
5876 | ||
0e600426 | 5877 | #ifndef MDASSEMBLE |
cdddbdbc DW |
5878 | static int validate_geometry_imsm_container(struct supertype *st, int level, |
5879 | int layout, int raiddisks, int chunk, | |
af4348dd N |
5880 | unsigned long long size, |
5881 | unsigned long long data_offset, | |
5882 | char *dev, | |
2c514b71 NB |
5883 | unsigned long long *freesize, |
5884 | int verbose) | |
cdddbdbc | 5885 | { |
c2c087e6 DW |
5886 | int fd; |
5887 | unsigned long long ldsize; | |
594dc1b8 | 5888 | struct intel_super *super; |
f2f5c343 | 5889 | int rv = 0; |
cdddbdbc | 5890 | |
c2c087e6 DW |
5891 | if (level != LEVEL_CONTAINER) |
5892 | return 0; | |
5893 | if (!dev) | |
5894 | return 1; | |
5895 | ||
5896 | fd = open(dev, O_RDONLY|O_EXCL, 0); | |
5897 | if (fd < 0) { | |
ba728be7 | 5898 | if (verbose > 0) |
e7b84f9d | 5899 | pr_err("imsm: Cannot open %s: %s\n", |
2c514b71 | 5900 | dev, strerror(errno)); |
c2c087e6 DW |
5901 | return 0; |
5902 | } | |
5903 | if (!get_dev_size(fd, dev, &ldsize)) { | |
5904 | close(fd); | |
5905 | return 0; | |
5906 | } | |
f2f5c343 LM |
5907 | |
5908 | /* capabilities retrieve could be possible | |
5909 | * note that there is no fd for the disks in array. | |
5910 | */ | |
5911 | super = alloc_super(); | |
8d67477f TM |
5912 | if (!super) { |
5913 | close(fd); | |
5914 | return 0; | |
5915 | } | |
fa7bb6f8 PB |
5916 | if (!get_dev_sector_size(fd, NULL, &super->sector_size)) { |
5917 | close(fd); | |
5918 | free_imsm(super); | |
5919 | return 0; | |
5920 | } | |
5921 | ||
ba728be7 | 5922 | rv = find_intel_hba_capability(fd, super, verbose > 0 ? dev : NULL); |
f2f5c343 LM |
5923 | if (rv != 0) { |
5924 | #if DEBUG | |
5925 | char str[256]; | |
5926 | fd2devname(fd, str); | |
1ade5cc1 | 5927 | dprintf("fd: %d %s orom: %p rv: %d raiddisk: %d\n", |
f2f5c343 LM |
5928 | fd, str, super->orom, rv, raiddisks); |
5929 | #endif | |
5930 | /* no orom/efi or non-intel hba of the disk */ | |
5931 | close(fd); | |
5932 | free_imsm(super); | |
5933 | return 0; | |
5934 | } | |
c2c087e6 | 5935 | close(fd); |
9126b9a8 CA |
5936 | if (super->orom) { |
5937 | if (raiddisks > super->orom->tds) { | |
5938 | if (verbose) | |
7a862a02 | 5939 | pr_err("%d exceeds maximum number of platform supported disks: %d\n", |
9126b9a8 CA |
5940 | raiddisks, super->orom->tds); |
5941 | free_imsm(super); | |
5942 | return 0; | |
5943 | } | |
5944 | if ((super->orom->attr & IMSM_OROM_ATTR_2TB_DISK) == 0 && | |
5945 | (ldsize >> 9) >> 32 > 0) { | |
5946 | if (verbose) | |
e7b84f9d | 5947 | pr_err("%s exceeds maximum platform supported size\n", dev); |
9126b9a8 CA |
5948 | free_imsm(super); |
5949 | return 0; | |
5950 | } | |
f2f5c343 | 5951 | } |
c2c087e6 | 5952 | |
af4348dd | 5953 | *freesize = avail_size_imsm(st, ldsize >> 9, data_offset); |
f2f5c343 | 5954 | free_imsm(super); |
c2c087e6 DW |
5955 | |
5956 | return 1; | |
cdddbdbc DW |
5957 | } |
5958 | ||
0dcecb2e DW |
5959 | static unsigned long long find_size(struct extent *e, int *idx, int num_extents) |
5960 | { | |
5961 | const unsigned long long base_start = e[*idx].start; | |
5962 | unsigned long long end = base_start + e[*idx].size; | |
5963 | int i; | |
5964 | ||
5965 | if (base_start == end) | |
5966 | return 0; | |
5967 | ||
5968 | *idx = *idx + 1; | |
5969 | for (i = *idx; i < num_extents; i++) { | |
5970 | /* extend overlapping extents */ | |
5971 | if (e[i].start >= base_start && | |
5972 | e[i].start <= end) { | |
5973 | if (e[i].size == 0) | |
5974 | return 0; | |
5975 | if (e[i].start + e[i].size > end) | |
5976 | end = e[i].start + e[i].size; | |
5977 | } else if (e[i].start > end) { | |
5978 | *idx = i; | |
5979 | break; | |
5980 | } | |
5981 | } | |
5982 | ||
5983 | return end - base_start; | |
5984 | } | |
5985 | ||
5986 | static unsigned long long merge_extents(struct intel_super *super, int sum_extents) | |
5987 | { | |
5988 | /* build a composite disk with all known extents and generate a new | |
5989 | * 'maxsize' given the "all disks in an array must share a common start | |
5990 | * offset" constraint | |
5991 | */ | |
503975b9 | 5992 | struct extent *e = xcalloc(sum_extents, sizeof(*e)); |
0dcecb2e DW |
5993 | struct dl *dl; |
5994 | int i, j; | |
5995 | int start_extent; | |
5996 | unsigned long long pos; | |
b9d77223 | 5997 | unsigned long long start = 0; |
0dcecb2e DW |
5998 | unsigned long long maxsize; |
5999 | unsigned long reserve; | |
6000 | ||
0dcecb2e DW |
6001 | /* coalesce and sort all extents. also, check to see if we need to |
6002 | * reserve space between member arrays | |
6003 | */ | |
6004 | j = 0; | |
6005 | for (dl = super->disks; dl; dl = dl->next) { | |
6006 | if (!dl->e) | |
6007 | continue; | |
6008 | for (i = 0; i < dl->extent_cnt; i++) | |
6009 | e[j++] = dl->e[i]; | |
6010 | } | |
6011 | qsort(e, sum_extents, sizeof(*e), cmp_extent); | |
6012 | ||
6013 | /* merge extents */ | |
6014 | i = 0; | |
6015 | j = 0; | |
6016 | while (i < sum_extents) { | |
6017 | e[j].start = e[i].start; | |
6018 | e[j].size = find_size(e, &i, sum_extents); | |
6019 | j++; | |
6020 | if (e[j-1].size == 0) | |
6021 | break; | |
6022 | } | |
6023 | ||
6024 | pos = 0; | |
6025 | maxsize = 0; | |
6026 | start_extent = 0; | |
6027 | i = 0; | |
6028 | do { | |
6029 | unsigned long long esize; | |
6030 | ||
6031 | esize = e[i].start - pos; | |
6032 | if (esize >= maxsize) { | |
6033 | maxsize = esize; | |
6034 | start = pos; | |
6035 | start_extent = i; | |
6036 | } | |
6037 | pos = e[i].start + e[i].size; | |
6038 | i++; | |
6039 | } while (e[i-1].size); | |
6040 | free(e); | |
6041 | ||
a7dd165b DW |
6042 | if (maxsize == 0) |
6043 | return 0; | |
6044 | ||
6045 | /* FIXME assumes volume at offset 0 is the first volume in a | |
6046 | * container | |
6047 | */ | |
0dcecb2e DW |
6048 | if (start_extent > 0) |
6049 | reserve = IMSM_RESERVED_SECTORS; /* gap between raid regions */ | |
6050 | else | |
6051 | reserve = 0; | |
6052 | ||
6053 | if (maxsize < reserve) | |
a7dd165b | 6054 | return 0; |
0dcecb2e | 6055 | |
5551b113 | 6056 | super->create_offset = ~((unsigned long long) 0); |
0dcecb2e | 6057 | if (start + reserve > super->create_offset) |
a7dd165b | 6058 | return 0; /* start overflows create_offset */ |
0dcecb2e DW |
6059 | super->create_offset = start + reserve; |
6060 | ||
6061 | return maxsize - reserve; | |
6062 | } | |
6063 | ||
88c32bb1 DW |
6064 | static int is_raid_level_supported(const struct imsm_orom *orom, int level, int raiddisks) |
6065 | { | |
6066 | if (level < 0 || level == 6 || level == 4) | |
6067 | return 0; | |
6068 | ||
6069 | /* if we have an orom prevent invalid raid levels */ | |
6070 | if (orom) | |
6071 | switch (level) { | |
6072 | case 0: return imsm_orom_has_raid0(orom); | |
6073 | case 1: | |
6074 | if (raiddisks > 2) | |
6075 | return imsm_orom_has_raid1e(orom); | |
1c556e92 DW |
6076 | return imsm_orom_has_raid1(orom) && raiddisks == 2; |
6077 | case 10: return imsm_orom_has_raid10(orom) && raiddisks == 4; | |
6078 | case 5: return imsm_orom_has_raid5(orom) && raiddisks > 2; | |
88c32bb1 DW |
6079 | } |
6080 | else | |
6081 | return 1; /* not on an Intel RAID platform so anything goes */ | |
6082 | ||
6083 | return 0; | |
6084 | } | |
6085 | ||
ca9de185 LM |
6086 | static int |
6087 | active_arrays_by_format(char *name, char* hba, struct md_list **devlist, | |
6088 | int dpa, int verbose) | |
6089 | { | |
6090 | struct mdstat_ent *mdstat = mdstat_read(0, 0); | |
594dc1b8 | 6091 | struct mdstat_ent *memb; |
ca9de185 LM |
6092 | int count = 0; |
6093 | int num = 0; | |
594dc1b8 | 6094 | struct md_list *dv; |
ca9de185 LM |
6095 | int found; |
6096 | ||
6097 | for (memb = mdstat ; memb ; memb = memb->next) { | |
6098 | if (memb->metadata_version && | |
6099 | (strncmp(memb->metadata_version, "external:", 9) == 0) && | |
6100 | (strcmp(&memb->metadata_version[9], name) == 0) && | |
6101 | !is_subarray(memb->metadata_version+9) && | |
6102 | memb->members) { | |
6103 | struct dev_member *dev = memb->members; | |
6104 | int fd = -1; | |
6105 | while(dev && (fd < 0)) { | |
503975b9 N |
6106 | char *path = xmalloc(strlen(dev->name) + strlen("/dev/") + 1); |
6107 | num = sprintf(path, "%s%s", "/dev/", dev->name); | |
6108 | if (num > 0) | |
6109 | fd = open(path, O_RDONLY, 0); | |
089f9d79 | 6110 | if (num <= 0 || fd < 0) { |
676e87a8 | 6111 | pr_vrb("Cannot open %s: %s\n", |
503975b9 | 6112 | dev->name, strerror(errno)); |
ca9de185 | 6113 | } |
503975b9 | 6114 | free(path); |
ca9de185 LM |
6115 | dev = dev->next; |
6116 | } | |
6117 | found = 0; | |
089f9d79 | 6118 | if (fd >= 0 && disk_attached_to_hba(fd, hba)) { |
ca9de185 LM |
6119 | struct mdstat_ent *vol; |
6120 | for (vol = mdstat ; vol ; vol = vol->next) { | |
089f9d79 | 6121 | if (vol->active > 0 && |
ca9de185 | 6122 | vol->metadata_version && |
9581efb1 | 6123 | is_container_member(vol, memb->devnm)) { |
ca9de185 LM |
6124 | found++; |
6125 | count++; | |
6126 | } | |
6127 | } | |
6128 | if (*devlist && (found < dpa)) { | |
503975b9 | 6129 | dv = xcalloc(1, sizeof(*dv)); |
9581efb1 N |
6130 | dv->devname = xmalloc(strlen(memb->devnm) + strlen("/dev/") + 1); |
6131 | sprintf(dv->devname, "%s%s", "/dev/", memb->devnm); | |
503975b9 N |
6132 | dv->found = found; |
6133 | dv->used = 0; | |
6134 | dv->next = *devlist; | |
6135 | *devlist = dv; | |
ca9de185 LM |
6136 | } |
6137 | } | |
6138 | if (fd >= 0) | |
6139 | close(fd); | |
6140 | } | |
6141 | } | |
6142 | free_mdstat(mdstat); | |
6143 | return count; | |
6144 | } | |
6145 | ||
6146 | #ifdef DEBUG_LOOP | |
6147 | static struct md_list* | |
6148 | get_loop_devices(void) | |
6149 | { | |
6150 | int i; | |
6151 | struct md_list *devlist = NULL; | |
594dc1b8 | 6152 | struct md_list *dv; |
ca9de185 LM |
6153 | |
6154 | for(i = 0; i < 12; i++) { | |
503975b9 N |
6155 | dv = xcalloc(1, sizeof(*dv)); |
6156 | dv->devname = xmalloc(40); | |
ca9de185 LM |
6157 | sprintf(dv->devname, "/dev/loop%d", i); |
6158 | dv->next = devlist; | |
6159 | devlist = dv; | |
6160 | } | |
6161 | return devlist; | |
6162 | } | |
6163 | #endif | |
6164 | ||
6165 | static struct md_list* | |
6166 | get_devices(const char *hba_path) | |
6167 | { | |
6168 | struct md_list *devlist = NULL; | |
594dc1b8 | 6169 | struct md_list *dv; |
ca9de185 LM |
6170 | struct dirent *ent; |
6171 | DIR *dir; | |
6172 | int err = 0; | |
6173 | ||
6174 | #if DEBUG_LOOP | |
6175 | devlist = get_loop_devices(); | |
6176 | return devlist; | |
6177 | #endif | |
6178 | /* scroll through /sys/dev/block looking for devices attached to | |
6179 | * this hba | |
6180 | */ | |
6181 | dir = opendir("/sys/dev/block"); | |
6182 | for (ent = dir ? readdir(dir) : NULL; ent; ent = readdir(dir)) { | |
6183 | int fd; | |
6184 | char buf[1024]; | |
6185 | int major, minor; | |
6186 | char *path = NULL; | |
6187 | if (sscanf(ent->d_name, "%d:%d", &major, &minor) != 2) | |
6188 | continue; | |
6189 | path = devt_to_devpath(makedev(major, minor)); | |
6190 | if (!path) | |
6191 | continue; | |
6192 | if (!path_attached_to_hba(path, hba_path)) { | |
6193 | free(path); | |
6194 | path = NULL; | |
6195 | continue; | |
6196 | } | |
6197 | free(path); | |
6198 | path = NULL; | |
6199 | fd = dev_open(ent->d_name, O_RDONLY); | |
6200 | if (fd >= 0) { | |
6201 | fd2devname(fd, buf); | |
6202 | close(fd); | |
6203 | } else { | |
e7b84f9d | 6204 | pr_err("cannot open device: %s\n", |
ca9de185 LM |
6205 | ent->d_name); |
6206 | continue; | |
6207 | } | |
6208 | ||
503975b9 N |
6209 | dv = xcalloc(1, sizeof(*dv)); |
6210 | dv->devname = xstrdup(buf); | |
ca9de185 LM |
6211 | dv->next = devlist; |
6212 | devlist = dv; | |
6213 | } | |
6214 | if (err) { | |
6215 | while(devlist) { | |
6216 | dv = devlist; | |
6217 | devlist = devlist->next; | |
6218 | free(dv->devname); | |
6219 | free(dv); | |
6220 | } | |
6221 | } | |
562aa102 | 6222 | closedir(dir); |
ca9de185 LM |
6223 | return devlist; |
6224 | } | |
6225 | ||
6226 | static int | |
6227 | count_volumes_list(struct md_list *devlist, char *homehost, | |
6228 | int verbose, int *found) | |
6229 | { | |
6230 | struct md_list *tmpdev; | |
6231 | int count = 0; | |
594dc1b8 | 6232 | struct supertype *st; |
ca9de185 LM |
6233 | |
6234 | /* first walk the list of devices to find a consistent set | |
6235 | * that match the criterea, if that is possible. | |
6236 | * We flag the ones we like with 'used'. | |
6237 | */ | |
6238 | *found = 0; | |
6239 | st = match_metadata_desc_imsm("imsm"); | |
6240 | if (st == NULL) { | |
676e87a8 | 6241 | pr_vrb("cannot allocate memory for imsm supertype\n"); |
ca9de185 LM |
6242 | return 0; |
6243 | } | |
6244 | ||
6245 | for (tmpdev = devlist; tmpdev; tmpdev = tmpdev->next) { | |
6246 | char *devname = tmpdev->devname; | |
6247 | struct stat stb; | |
6248 | struct supertype *tst; | |
6249 | int dfd; | |
6250 | if (tmpdev->used > 1) | |
6251 | continue; | |
6252 | tst = dup_super(st); | |
6253 | if (tst == NULL) { | |
676e87a8 | 6254 | pr_vrb("cannot allocate memory for imsm supertype\n"); |
ca9de185 LM |
6255 | goto err_1; |
6256 | } | |
6257 | tmpdev->container = 0; | |
6258 | dfd = dev_open(devname, O_RDONLY|O_EXCL); | |
6259 | if (dfd < 0) { | |
1ade5cc1 | 6260 | dprintf("cannot open device %s: %s\n", |
ca9de185 LM |
6261 | devname, strerror(errno)); |
6262 | tmpdev->used = 2; | |
6263 | } else if (fstat(dfd, &stb)< 0) { | |
6264 | /* Impossible! */ | |
1ade5cc1 | 6265 | dprintf("fstat failed for %s: %s\n", |
ca9de185 LM |
6266 | devname, strerror(errno)); |
6267 | tmpdev->used = 2; | |
6268 | } else if ((stb.st_mode & S_IFMT) != S_IFBLK) { | |
1ade5cc1 | 6269 | dprintf("%s is not a block device.\n", |
ca9de185 LM |
6270 | devname); |
6271 | tmpdev->used = 2; | |
6272 | } else if (must_be_container(dfd)) { | |
6273 | struct supertype *cst; | |
6274 | cst = super_by_fd(dfd, NULL); | |
6275 | if (cst == NULL) { | |
1ade5cc1 | 6276 | dprintf("cannot recognize container type %s\n", |
ca9de185 LM |
6277 | devname); |
6278 | tmpdev->used = 2; | |
6279 | } else if (tst->ss != st->ss) { | |
1ade5cc1 | 6280 | dprintf("non-imsm container - ignore it: %s\n", |
ca9de185 LM |
6281 | devname); |
6282 | tmpdev->used = 2; | |
6283 | } else if (!tst->ss->load_container || | |
6284 | tst->ss->load_container(tst, dfd, NULL)) | |
6285 | tmpdev->used = 2; | |
6286 | else { | |
6287 | tmpdev->container = 1; | |
6288 | } | |
6289 | if (cst) | |
6290 | cst->ss->free_super(cst); | |
6291 | } else { | |
6292 | tmpdev->st_rdev = stb.st_rdev; | |
6293 | if (tst->ss->load_super(tst,dfd, NULL)) { | |
1ade5cc1 | 6294 | dprintf("no RAID superblock on %s\n", |
ca9de185 LM |
6295 | devname); |
6296 | tmpdev->used = 2; | |
6297 | } else if (tst->ss->compare_super == NULL) { | |
1ade5cc1 | 6298 | dprintf("Cannot assemble %s metadata on %s\n", |
ca9de185 LM |
6299 | tst->ss->name, devname); |
6300 | tmpdev->used = 2; | |
6301 | } | |
6302 | } | |
6303 | if (dfd >= 0) | |
6304 | close(dfd); | |
6305 | if (tmpdev->used == 2 || tmpdev->used == 4) { | |
6306 | /* Ignore unrecognised devices during auto-assembly */ | |
6307 | goto loop; | |
6308 | } | |
6309 | else { | |
6310 | struct mdinfo info; | |
6311 | tst->ss->getinfo_super(tst, &info, NULL); | |
6312 | ||
6313 | if (st->minor_version == -1) | |
6314 | st->minor_version = tst->minor_version; | |
6315 | ||
6316 | if (memcmp(info.uuid, uuid_zero, | |
6317 | sizeof(int[4])) == 0) { | |
6318 | /* this is a floating spare. It cannot define | |
6319 | * an array unless there are no more arrays of | |
6320 | * this type to be found. It can be included | |
6321 | * in an array of this type though. | |
6322 | */ | |
6323 | tmpdev->used = 3; | |
6324 | goto loop; | |
6325 | } | |
6326 | ||
6327 | if (st->ss != tst->ss || | |
6328 | st->minor_version != tst->minor_version || | |
6329 | st->ss->compare_super(st, tst) != 0) { | |
6330 | /* Some mismatch. If exactly one array matches this host, | |
6331 | * we can resolve on that one. | |
6332 | * Or, if we are auto assembling, we just ignore the second | |
6333 | * for now. | |
6334 | */ | |
1ade5cc1 | 6335 | dprintf("superblock on %s doesn't match others - assembly aborted\n", |
ca9de185 LM |
6336 | devname); |
6337 | goto loop; | |
6338 | } | |
6339 | tmpdev->used = 1; | |
6340 | *found = 1; | |
6341 | dprintf("found: devname: %s\n", devname); | |
6342 | } | |
6343 | loop: | |
6344 | if (tst) | |
6345 | tst->ss->free_super(tst); | |
6346 | } | |
6347 | if (*found != 0) { | |
6348 | int err; | |
6349 | if ((err = load_super_imsm_all(st, -1, &st->sb, NULL, devlist, 0)) == 0) { | |
6350 | struct mdinfo *iter, *head = st->ss->container_content(st, NULL); | |
6351 | for (iter = head; iter; iter = iter->next) { | |
6352 | dprintf("content->text_version: %s vol\n", | |
6353 | iter->text_version); | |
6354 | if (iter->array.state & (1<<MD_SB_BLOCK_VOLUME)) { | |
6355 | /* do not assemble arrays with unsupported | |
6356 | configurations */ | |
1ade5cc1 | 6357 | dprintf("Cannot activate member %s.\n", |
ca9de185 LM |
6358 | iter->text_version); |
6359 | } else | |
6360 | count++; | |
6361 | } | |
6362 | sysfs_free(head); | |
6363 | ||
6364 | } else { | |
1ade5cc1 | 6365 | dprintf("No valid super block on device list: err: %d %p\n", |
ca9de185 LM |
6366 | err, st->sb); |
6367 | } | |
6368 | } else { | |
1ade5cc1 | 6369 | dprintf("no more devices to examine\n"); |
ca9de185 LM |
6370 | } |
6371 | ||
6372 | for (tmpdev = devlist; tmpdev; tmpdev = tmpdev->next) { | |
089f9d79 | 6373 | if (tmpdev->used == 1 && tmpdev->found) { |
ca9de185 LM |
6374 | if (count) { |
6375 | if (count < tmpdev->found) | |
6376 | count = 0; | |
6377 | else | |
6378 | count -= tmpdev->found; | |
6379 | } | |
6380 | } | |
6381 | if (tmpdev->used == 1) | |
6382 | tmpdev->used = 4; | |
6383 | } | |
6384 | err_1: | |
6385 | if (st) | |
6386 | st->ss->free_super(st); | |
6387 | return count; | |
6388 | } | |
6389 | ||
ca9de185 | 6390 | static int |
72a45777 | 6391 | count_volumes(struct intel_hba *hba, int dpa, int verbose) |
ca9de185 | 6392 | { |
72a45777 | 6393 | struct sys_dev *idev, *intel_devices = find_intel_devices(); |
ca9de185 | 6394 | int count = 0; |
72a45777 PB |
6395 | const struct orom_entry *entry; |
6396 | struct devid_list *dv, *devid_list; | |
ca9de185 | 6397 | |
72a45777 | 6398 | if (!hba || !hba->path) |
ca9de185 LM |
6399 | return 0; |
6400 | ||
72a45777 PB |
6401 | for (idev = intel_devices; idev; idev = idev->next) { |
6402 | if (strstr(idev->path, hba->path)) | |
6403 | break; | |
6404 | } | |
6405 | ||
6406 | if (!idev || !idev->dev_id) | |
ca9de185 | 6407 | return 0; |
72a45777 PB |
6408 | |
6409 | entry = get_orom_entry_by_device_id(idev->dev_id); | |
6410 | ||
6411 | if (!entry || !entry->devid_list) | |
6412 | return 0; | |
6413 | ||
6414 | devid_list = entry->devid_list; | |
6415 | for (dv = devid_list; dv; dv = dv->next) { | |
594dc1b8 | 6416 | struct md_list *devlist; |
72a45777 PB |
6417 | struct sys_dev *device = device_by_id(dv->devid); |
6418 | char *hba_path; | |
6419 | int found = 0; | |
6420 | ||
6421 | if (device) | |
6422 | hba_path = device->path; | |
6423 | else | |
6424 | return 0; | |
6425 | ||
6426 | devlist = get_devices(hba_path); | |
6427 | /* if no intel devices return zero volumes */ | |
6428 | if (devlist == NULL) | |
6429 | return 0; | |
6430 | ||
6431 | count += active_arrays_by_format("imsm", hba_path, &devlist, dpa, verbose); | |
6432 | dprintf("path: %s active arrays: %d\n", hba_path, count); | |
6433 | if (devlist == NULL) | |
6434 | return 0; | |
6435 | do { | |
6436 | found = 0; | |
6437 | count += count_volumes_list(devlist, | |
6438 | NULL, | |
6439 | verbose, | |
6440 | &found); | |
6441 | dprintf("found %d count: %d\n", found, count); | |
6442 | } while (found); | |
6443 | ||
6444 | dprintf("path: %s total number of volumes: %d\n", hba_path, count); | |
6445 | ||
6446 | while (devlist) { | |
6447 | struct md_list *dv = devlist; | |
6448 | devlist = devlist->next; | |
6449 | free(dv->devname); | |
6450 | free(dv); | |
6451 | } | |
ca9de185 LM |
6452 | } |
6453 | return count; | |
6454 | } | |
6455 | ||
cd9d1ac7 DW |
6456 | static int imsm_default_chunk(const struct imsm_orom *orom) |
6457 | { | |
6458 | /* up to 512 if the plaform supports it, otherwise the platform max. | |
6459 | * 128 if no platform detected | |
6460 | */ | |
6461 | int fs = max(7, orom ? fls(orom->sss) : 0); | |
6462 | ||
6463 | return min(512, (1 << fs)); | |
6464 | } | |
73408129 | 6465 | |
6592ce37 DW |
6466 | static int |
6467 | validate_geometry_imsm_orom(struct intel_super *super, int level, int layout, | |
2cc699af | 6468 | int raiddisks, int *chunk, unsigned long long size, int verbose) |
6592ce37 | 6469 | { |
660260d0 DW |
6470 | /* check/set platform and metadata limits/defaults */ |
6471 | if (super->orom && raiddisks > super->orom->dpa) { | |
676e87a8 | 6472 | pr_vrb("platform supports a maximum of %d disks per array\n", |
660260d0 | 6473 | super->orom->dpa); |
73408129 LM |
6474 | return 0; |
6475 | } | |
6476 | ||
5d500228 | 6477 | /* capabilities of OROM tested - copied from validate_geometry_imsm_volume */ |
660260d0 | 6478 | if (!is_raid_level_supported(super->orom, level, raiddisks)) { |
676e87a8 | 6479 | pr_vrb("platform does not support raid%d with %d disk%s\n", |
6592ce37 DW |
6480 | level, raiddisks, raiddisks > 1 ? "s" : ""); |
6481 | return 0; | |
6482 | } | |
cd9d1ac7 | 6483 | |
7ccc4cc4 | 6484 | if (*chunk == 0 || *chunk == UnSet) |
cd9d1ac7 DW |
6485 | *chunk = imsm_default_chunk(super->orom); |
6486 | ||
7ccc4cc4 | 6487 | if (super->orom && !imsm_orom_has_chunk(super->orom, *chunk)) { |
676e87a8 | 6488 | pr_vrb("platform does not support a chunk size of: %d\n", *chunk); |
cd9d1ac7 | 6489 | return 0; |
6592ce37 | 6490 | } |
cd9d1ac7 | 6491 | |
6592ce37 DW |
6492 | if (layout != imsm_level_to_layout(level)) { |
6493 | if (level == 5) | |
676e87a8 | 6494 | pr_vrb("imsm raid 5 only supports the left-asymmetric layout\n"); |
6592ce37 | 6495 | else if (level == 10) |
676e87a8 | 6496 | pr_vrb("imsm raid 10 only supports the n2 layout\n"); |
6592ce37 | 6497 | else |
676e87a8 | 6498 | pr_vrb("imsm unknown layout %#x for this raid level %d\n", |
6592ce37 DW |
6499 | layout, level); |
6500 | return 0; | |
6501 | } | |
2cc699af | 6502 | |
7ccc4cc4 | 6503 | if (super->orom && (super->orom->attr & IMSM_OROM_ATTR_2TB) == 0 && |
2cc699af | 6504 | (calc_array_size(level, raiddisks, layout, *chunk, size) >> 32) > 0) { |
676e87a8 | 6505 | pr_vrb("platform does not support a volume size over 2TB\n"); |
2cc699af CA |
6506 | return 0; |
6507 | } | |
614902f6 | 6508 | |
6592ce37 DW |
6509 | return 1; |
6510 | } | |
6511 | ||
1011e834 | 6512 | /* validate_geometry_imsm_volume - lifted from validate_geometry_ddf_bvd |
c2c087e6 DW |
6513 | * FIX ME add ahci details |
6514 | */ | |
8b353278 | 6515 | static int validate_geometry_imsm_volume(struct supertype *st, int level, |
c21e737b | 6516 | int layout, int raiddisks, int *chunk, |
af4348dd N |
6517 | unsigned long long size, |
6518 | unsigned long long data_offset, | |
6519 | char *dev, | |
2c514b71 NB |
6520 | unsigned long long *freesize, |
6521 | int verbose) | |
cdddbdbc | 6522 | { |
c2c087e6 DW |
6523 | struct stat stb; |
6524 | struct intel_super *super = st->sb; | |
b2916f25 | 6525 | struct imsm_super *mpb; |
c2c087e6 DW |
6526 | struct dl *dl; |
6527 | unsigned long long pos = 0; | |
6528 | unsigned long long maxsize; | |
6529 | struct extent *e; | |
6530 | int i; | |
cdddbdbc | 6531 | |
88c32bb1 DW |
6532 | /* We must have the container info already read in. */ |
6533 | if (!super) | |
c2c087e6 DW |
6534 | return 0; |
6535 | ||
b2916f25 JS |
6536 | mpb = super->anchor; |
6537 | ||
2cc699af | 6538 | if (!validate_geometry_imsm_orom(super, level, layout, raiddisks, chunk, size, verbose)) { |
7a862a02 | 6539 | pr_err("RAID gemetry validation failed. Cannot proceed with the action(s).\n"); |
c2c087e6 | 6540 | return 0; |
d54559f0 | 6541 | } |
c2c087e6 DW |
6542 | if (!dev) { |
6543 | /* General test: make sure there is space for | |
2da8544a DW |
6544 | * 'raiddisks' device extents of size 'size' at a given |
6545 | * offset | |
c2c087e6 | 6546 | */ |
e46273eb | 6547 | unsigned long long minsize = size; |
b7528a20 | 6548 | unsigned long long start_offset = MaxSector; |
c2c087e6 DW |
6549 | int dcnt = 0; |
6550 | if (minsize == 0) | |
6551 | minsize = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
6552 | for (dl = super->disks; dl ; dl = dl->next) { | |
6553 | int found = 0; | |
6554 | ||
bf5a934a | 6555 | pos = 0; |
c2c087e6 DW |
6556 | i = 0; |
6557 | e = get_extents(super, dl); | |
6558 | if (!e) continue; | |
6559 | do { | |
6560 | unsigned long long esize; | |
6561 | esize = e[i].start - pos; | |
6562 | if (esize >= minsize) | |
6563 | found = 1; | |
b7528a20 | 6564 | if (found && start_offset == MaxSector) { |
2da8544a DW |
6565 | start_offset = pos; |
6566 | break; | |
6567 | } else if (found && pos != start_offset) { | |
6568 | found = 0; | |
6569 | break; | |
6570 | } | |
c2c087e6 DW |
6571 | pos = e[i].start + e[i].size; |
6572 | i++; | |
6573 | } while (e[i-1].size); | |
6574 | if (found) | |
6575 | dcnt++; | |
6576 | free(e); | |
6577 | } | |
6578 | if (dcnt < raiddisks) { | |
2c514b71 | 6579 | if (verbose) |
7a862a02 | 6580 | pr_err("imsm: Not enough devices with space for this array (%d < %d)\n", |
2c514b71 | 6581 | dcnt, raiddisks); |
c2c087e6 DW |
6582 | return 0; |
6583 | } | |
6584 | return 1; | |
6585 | } | |
0dcecb2e | 6586 | |
c2c087e6 DW |
6587 | /* This device must be a member of the set */ |
6588 | if (stat(dev, &stb) < 0) | |
6589 | return 0; | |
6590 | if ((S_IFMT & stb.st_mode) != S_IFBLK) | |
6591 | return 0; | |
6592 | for (dl = super->disks ; dl ; dl = dl->next) { | |
f21e18ca N |
6593 | if (dl->major == (int)major(stb.st_rdev) && |
6594 | dl->minor == (int)minor(stb.st_rdev)) | |
c2c087e6 DW |
6595 | break; |
6596 | } | |
6597 | if (!dl) { | |
2c514b71 | 6598 | if (verbose) |
7a862a02 | 6599 | pr_err("%s is not in the same imsm set\n", dev); |
c2c087e6 | 6600 | return 0; |
a20d2ba5 DW |
6601 | } else if (super->orom && dl->index < 0 && mpb->num_raid_devs) { |
6602 | /* If a volume is present then the current creation attempt | |
6603 | * cannot incorporate new spares because the orom may not | |
6604 | * understand this configuration (all member disks must be | |
6605 | * members of each array in the container). | |
6606 | */ | |
7a862a02 N |
6607 | pr_err("%s is a spare and a volume is already defined for this container\n", dev); |
6608 | pr_err("The option-rom requires all member disks to be a member of all volumes\n"); | |
a20d2ba5 | 6609 | return 0; |
5fe62b94 WD |
6610 | } else if (super->orom && mpb->num_raid_devs > 0 && |
6611 | mpb->num_disks != raiddisks) { | |
7a862a02 | 6612 | pr_err("The option-rom requires all member disks to be a member of all volumes\n"); |
5fe62b94 | 6613 | return 0; |
c2c087e6 | 6614 | } |
0dcecb2e DW |
6615 | |
6616 | /* retrieve the largest free space block */ | |
c2c087e6 DW |
6617 | e = get_extents(super, dl); |
6618 | maxsize = 0; | |
6619 | i = 0; | |
0dcecb2e DW |
6620 | if (e) { |
6621 | do { | |
6622 | unsigned long long esize; | |
6623 | ||
6624 | esize = e[i].start - pos; | |
6625 | if (esize >= maxsize) | |
6626 | maxsize = esize; | |
6627 | pos = e[i].start + e[i].size; | |
6628 | i++; | |
6629 | } while (e[i-1].size); | |
6630 | dl->e = e; | |
6631 | dl->extent_cnt = i; | |
6632 | } else { | |
6633 | if (verbose) | |
e7b84f9d | 6634 | pr_err("unable to determine free space for: %s\n", |
0dcecb2e DW |
6635 | dev); |
6636 | return 0; | |
6637 | } | |
6638 | if (maxsize < size) { | |
6639 | if (verbose) | |
e7b84f9d | 6640 | pr_err("%s not enough space (%llu < %llu)\n", |
0dcecb2e DW |
6641 | dev, maxsize, size); |
6642 | return 0; | |
6643 | } | |
6644 | ||
6645 | /* count total number of extents for merge */ | |
6646 | i = 0; | |
6647 | for (dl = super->disks; dl; dl = dl->next) | |
6648 | if (dl->e) | |
6649 | i += dl->extent_cnt; | |
6650 | ||
6651 | maxsize = merge_extents(super, i); | |
3baa56ab LO |
6652 | |
6653 | if (!check_env("IMSM_NO_PLATFORM") && | |
6654 | mpb->num_raid_devs > 0 && size && size != maxsize) { | |
7a862a02 | 6655 | pr_err("attempting to create a second volume with size less then remaining space. Aborting...\n"); |
3baa56ab LO |
6656 | return 0; |
6657 | } | |
6658 | ||
a7dd165b | 6659 | if (maxsize < size || maxsize == 0) { |
b3071342 LD |
6660 | if (verbose) { |
6661 | if (maxsize == 0) | |
7a862a02 | 6662 | pr_err("no free space left on device. Aborting...\n"); |
b3071342 | 6663 | else |
7a862a02 | 6664 | pr_err("not enough space to create volume of given size (%llu < %llu). Aborting...\n", |
b3071342 LD |
6665 | maxsize, size); |
6666 | } | |
0dcecb2e | 6667 | return 0; |
0dcecb2e DW |
6668 | } |
6669 | ||
c2c087e6 DW |
6670 | *freesize = maxsize; |
6671 | ||
ca9de185 | 6672 | if (super->orom) { |
72a45777 | 6673 | int count = count_volumes(super->hba, |
ca9de185 LM |
6674 | super->orom->dpa, verbose); |
6675 | if (super->orom->vphba <= count) { | |
676e87a8 | 6676 | pr_vrb("platform does not support more than %d raid volumes.\n", |
ca9de185 LM |
6677 | super->orom->vphba); |
6678 | return 0; | |
6679 | } | |
6680 | } | |
c2c087e6 | 6681 | return 1; |
cdddbdbc DW |
6682 | } |
6683 | ||
13bcac90 | 6684 | static int imsm_get_free_size(struct supertype *st, int raiddisks, |
efb30e7f DW |
6685 | unsigned long long size, int chunk, |
6686 | unsigned long long *freesize) | |
6687 | { | |
6688 | struct intel_super *super = st->sb; | |
6689 | struct imsm_super *mpb = super->anchor; | |
6690 | struct dl *dl; | |
6691 | int i; | |
6692 | int extent_cnt; | |
6693 | struct extent *e; | |
6694 | unsigned long long maxsize; | |
6695 | unsigned long long minsize; | |
6696 | int cnt; | |
6697 | int used; | |
6698 | ||
6699 | /* find the largest common start free region of the possible disks */ | |
6700 | used = 0; | |
6701 | extent_cnt = 0; | |
6702 | cnt = 0; | |
6703 | for (dl = super->disks; dl; dl = dl->next) { | |
6704 | dl->raiddisk = -1; | |
6705 | ||
6706 | if (dl->index >= 0) | |
6707 | used++; | |
6708 | ||
6709 | /* don't activate new spares if we are orom constrained | |
6710 | * and there is already a volume active in the container | |
6711 | */ | |
6712 | if (super->orom && dl->index < 0 && mpb->num_raid_devs) | |
6713 | continue; | |
6714 | ||
6715 | e = get_extents(super, dl); | |
6716 | if (!e) | |
6717 | continue; | |
6718 | for (i = 1; e[i-1].size; i++) | |
6719 | ; | |
6720 | dl->e = e; | |
6721 | dl->extent_cnt = i; | |
6722 | extent_cnt += i; | |
6723 | cnt++; | |
6724 | } | |
6725 | ||
6726 | maxsize = merge_extents(super, extent_cnt); | |
6727 | minsize = size; | |
6728 | if (size == 0) | |
612e59d8 CA |
6729 | /* chunk is in K */ |
6730 | minsize = chunk * 2; | |
efb30e7f DW |
6731 | |
6732 | if (cnt < raiddisks || | |
6733 | (super->orom && used && used != raiddisks) || | |
a7dd165b DW |
6734 | maxsize < minsize || |
6735 | maxsize == 0) { | |
e7b84f9d | 6736 | pr_err("not enough devices with space to create array.\n"); |
efb30e7f DW |
6737 | return 0; /* No enough free spaces large enough */ |
6738 | } | |
6739 | ||
6740 | if (size == 0) { | |
6741 | size = maxsize; | |
6742 | if (chunk) { | |
612e59d8 CA |
6743 | size /= 2 * chunk; |
6744 | size *= 2 * chunk; | |
efb30e7f | 6745 | } |
f878b242 LM |
6746 | maxsize = size; |
6747 | } | |
6748 | if (!check_env("IMSM_NO_PLATFORM") && | |
6749 | mpb->num_raid_devs > 0 && size && size != maxsize) { | |
7a862a02 | 6750 | pr_err("attempting to create a second volume with size less then remaining space. Aborting...\n"); |
f878b242 | 6751 | return 0; |
efb30e7f | 6752 | } |
efb30e7f DW |
6753 | cnt = 0; |
6754 | for (dl = super->disks; dl; dl = dl->next) | |
6755 | if (dl->e) | |
6756 | dl->raiddisk = cnt++; | |
6757 | ||
6758 | *freesize = size; | |
6759 | ||
13bcac90 AK |
6760 | dprintf("imsm: imsm_get_free_size() returns : %llu\n", size); |
6761 | ||
efb30e7f DW |
6762 | return 1; |
6763 | } | |
6764 | ||
13bcac90 AK |
6765 | static int reserve_space(struct supertype *st, int raiddisks, |
6766 | unsigned long long size, int chunk, | |
6767 | unsigned long long *freesize) | |
6768 | { | |
6769 | struct intel_super *super = st->sb; | |
6770 | struct dl *dl; | |
6771 | int cnt; | |
6772 | int rv = 0; | |
6773 | ||
6774 | rv = imsm_get_free_size(st, raiddisks, size, chunk, freesize); | |
6775 | if (rv) { | |
6776 | cnt = 0; | |
6777 | for (dl = super->disks; dl; dl = dl->next) | |
6778 | if (dl->e) | |
6779 | dl->raiddisk = cnt++; | |
6780 | rv = 1; | |
6781 | } | |
6782 | ||
6783 | return rv; | |
6784 | } | |
6785 | ||
bf5a934a | 6786 | static int validate_geometry_imsm(struct supertype *st, int level, int layout, |
c21e737b | 6787 | int raiddisks, int *chunk, unsigned long long size, |
af4348dd | 6788 | unsigned long long data_offset, |
bf5a934a DW |
6789 | char *dev, unsigned long long *freesize, |
6790 | int verbose) | |
6791 | { | |
6792 | int fd, cfd; | |
6793 | struct mdinfo *sra; | |
20cbe8d2 | 6794 | int is_member = 0; |
bf5a934a | 6795 | |
d54559f0 LM |
6796 | /* load capability |
6797 | * if given unused devices create a container | |
bf5a934a DW |
6798 | * if given given devices in a container create a member volume |
6799 | */ | |
6800 | if (level == LEVEL_CONTAINER) { | |
6801 | /* Must be a fresh device to add to a container */ | |
6802 | return validate_geometry_imsm_container(st, level, layout, | |
c21e737b | 6803 | raiddisks, |
7ccc4cc4 | 6804 | *chunk, |
af4348dd | 6805 | size, data_offset, |
bf5a934a DW |
6806 | dev, freesize, |
6807 | verbose); | |
6808 | } | |
9587c373 | 6809 | |
8592f29d | 6810 | if (!dev) { |
e91a3bad | 6811 | if (st->sb) { |
ca9de185 | 6812 | struct intel_super *super = st->sb; |
e91a3bad | 6813 | if (!validate_geometry_imsm_orom(st->sb, level, layout, |
2cc699af | 6814 | raiddisks, chunk, size, |
e91a3bad LM |
6815 | verbose)) |
6816 | return 0; | |
efb30e7f DW |
6817 | /* we are being asked to automatically layout a |
6818 | * new volume based on the current contents of | |
6819 | * the container. If the the parameters can be | |
6820 | * satisfied reserve_space will record the disks, | |
6821 | * start offset, and size of the volume to be | |
6822 | * created. add_to_super and getinfo_super | |
6823 | * detect when autolayout is in progress. | |
6824 | */ | |
ca9de185 LM |
6825 | /* assuming that freesize is always given when array is |
6826 | created */ | |
6827 | if (super->orom && freesize) { | |
6828 | int count; | |
72a45777 | 6829 | count = count_volumes(super->hba, |
ca9de185 LM |
6830 | super->orom->dpa, verbose); |
6831 | if (super->orom->vphba <= count) { | |
676e87a8 | 6832 | pr_vrb("platform does not support more than %d raid volumes.\n", |
ca9de185 LM |
6833 | super->orom->vphba); |
6834 | return 0; | |
6835 | } | |
6836 | } | |
e91a3bad LM |
6837 | if (freesize) |
6838 | return reserve_space(st, raiddisks, size, | |
7ccc4cc4 | 6839 | *chunk, freesize); |
8592f29d N |
6840 | } |
6841 | return 1; | |
6842 | } | |
bf5a934a DW |
6843 | if (st->sb) { |
6844 | /* creating in a given container */ | |
6845 | return validate_geometry_imsm_volume(st, level, layout, | |
6846 | raiddisks, chunk, size, | |
af4348dd | 6847 | data_offset, |
bf5a934a DW |
6848 | dev, freesize, verbose); |
6849 | } | |
6850 | ||
bf5a934a DW |
6851 | /* This device needs to be a device in an 'imsm' container */ |
6852 | fd = open(dev, O_RDONLY|O_EXCL, 0); | |
6853 | if (fd >= 0) { | |
6854 | if (verbose) | |
e7b84f9d N |
6855 | pr_err("Cannot create this array on device %s\n", |
6856 | dev); | |
bf5a934a DW |
6857 | close(fd); |
6858 | return 0; | |
6859 | } | |
6860 | if (errno != EBUSY || (fd = open(dev, O_RDONLY, 0)) < 0) { | |
6861 | if (verbose) | |
e7b84f9d | 6862 | pr_err("Cannot open %s: %s\n", |
bf5a934a DW |
6863 | dev, strerror(errno)); |
6864 | return 0; | |
6865 | } | |
6866 | /* Well, it is in use by someone, maybe an 'imsm' container. */ | |
6867 | cfd = open_container(fd); | |
20cbe8d2 | 6868 | close(fd); |
bf5a934a | 6869 | if (cfd < 0) { |
bf5a934a | 6870 | if (verbose) |
e7b84f9d | 6871 | pr_err("Cannot use %s: It is busy\n", |
bf5a934a DW |
6872 | dev); |
6873 | return 0; | |
6874 | } | |
4dd2df09 | 6875 | sra = sysfs_read(cfd, NULL, GET_VERSION); |
bf5a934a | 6876 | if (sra && sra->array.major_version == -1 && |
20cbe8d2 AW |
6877 | strcmp(sra->text_version, "imsm") == 0) |
6878 | is_member = 1; | |
6879 | sysfs_free(sra); | |
6880 | if (is_member) { | |
bf5a934a DW |
6881 | /* This is a member of a imsm container. Load the container |
6882 | * and try to create a volume | |
6883 | */ | |
6884 | struct intel_super *super; | |
6885 | ||
ec50f7b6 | 6886 | if (load_super_imsm_all(st, cfd, (void **) &super, NULL, NULL, 1) == 0) { |
bf5a934a | 6887 | st->sb = super; |
4dd2df09 | 6888 | strcpy(st->container_devnm, fd2devnm(cfd)); |
bf5a934a DW |
6889 | close(cfd); |
6890 | return validate_geometry_imsm_volume(st, level, layout, | |
6891 | raiddisks, chunk, | |
af4348dd | 6892 | size, data_offset, dev, |
ecbd9e81 N |
6893 | freesize, 1) |
6894 | ? 1 : -1; | |
bf5a934a | 6895 | } |
20cbe8d2 | 6896 | } |
bf5a934a | 6897 | |
20cbe8d2 | 6898 | if (verbose) |
e7b84f9d | 6899 | pr_err("failed container membership check\n"); |
20cbe8d2 AW |
6900 | |
6901 | close(cfd); | |
6902 | return 0; | |
bf5a934a | 6903 | } |
0bd16cf2 | 6904 | |
30f58b22 | 6905 | static void default_geometry_imsm(struct supertype *st, int *level, int *layout, int *chunk) |
0bd16cf2 DJ |
6906 | { |
6907 | struct intel_super *super = st->sb; | |
6908 | ||
30f58b22 DW |
6909 | if (level && *level == UnSet) |
6910 | *level = LEVEL_CONTAINER; | |
6911 | ||
6912 | if (level && layout && *layout == UnSet) | |
6913 | *layout = imsm_level_to_layout(*level); | |
0bd16cf2 | 6914 | |
cd9d1ac7 DW |
6915 | if (chunk && (*chunk == UnSet || *chunk == 0)) |
6916 | *chunk = imsm_default_chunk(super->orom); | |
0bd16cf2 DJ |
6917 | } |
6918 | ||
33414a01 DW |
6919 | static void handle_missing(struct intel_super *super, struct imsm_dev *dev); |
6920 | ||
6921 | static int kill_subarray_imsm(struct supertype *st) | |
6922 | { | |
6923 | /* remove the subarray currently referenced by ->current_vol */ | |
6924 | __u8 i; | |
6925 | struct intel_dev **dp; | |
6926 | struct intel_super *super = st->sb; | |
6927 | __u8 current_vol = super->current_vol; | |
6928 | struct imsm_super *mpb = super->anchor; | |
6929 | ||
6930 | if (super->current_vol < 0) | |
6931 | return 2; | |
6932 | super->current_vol = -1; /* invalidate subarray cursor */ | |
6933 | ||
6934 | /* block deletions that would change the uuid of active subarrays | |
6935 | * | |
6936 | * FIXME when immutable ids are available, but note that we'll | |
6937 | * also need to fixup the invalidated/active subarray indexes in | |
6938 | * mdstat | |
6939 | */ | |
6940 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
6941 | char subarray[4]; | |
6942 | ||
6943 | if (i < current_vol) | |
6944 | continue; | |
6945 | sprintf(subarray, "%u", i); | |
4dd2df09 | 6946 | if (is_subarray_active(subarray, st->devnm)) { |
e7b84f9d N |
6947 | pr_err("deleting subarray-%d would change the UUID of active subarray-%d, aborting\n", |
6948 | current_vol, i); | |
33414a01 DW |
6949 | |
6950 | return 2; | |
6951 | } | |
6952 | } | |
6953 | ||
6954 | if (st->update_tail) { | |
503975b9 | 6955 | struct imsm_update_kill_array *u = xmalloc(sizeof(*u)); |
33414a01 | 6956 | |
33414a01 DW |
6957 | u->type = update_kill_array; |
6958 | u->dev_idx = current_vol; | |
6959 | append_metadata_update(st, u, sizeof(*u)); | |
6960 | ||
6961 | return 0; | |
6962 | } | |
6963 | ||
6964 | for (dp = &super->devlist; *dp;) | |
6965 | if ((*dp)->index == current_vol) { | |
6966 | *dp = (*dp)->next; | |
6967 | } else { | |
6968 | handle_missing(super, (*dp)->dev); | |
6969 | if ((*dp)->index > current_vol) | |
6970 | (*dp)->index--; | |
6971 | dp = &(*dp)->next; | |
6972 | } | |
6973 | ||
6974 | /* no more raid devices, all active components are now spares, | |
6975 | * but of course failed are still failed | |
6976 | */ | |
6977 | if (--mpb->num_raid_devs == 0) { | |
6978 | struct dl *d; | |
6979 | ||
6980 | for (d = super->disks; d; d = d->next) | |
a8619d23 AK |
6981 | if (d->index > -2) |
6982 | mark_spare(d); | |
33414a01 DW |
6983 | } |
6984 | ||
6985 | super->updates_pending++; | |
6986 | ||
6987 | return 0; | |
6988 | } | |
aa534678 | 6989 | |
a951a4f7 | 6990 | static int update_subarray_imsm(struct supertype *st, char *subarray, |
fa56eddb | 6991 | char *update, struct mddev_ident *ident) |
aa534678 DW |
6992 | { |
6993 | /* update the subarray currently referenced by ->current_vol */ | |
6994 | struct intel_super *super = st->sb; | |
6995 | struct imsm_super *mpb = super->anchor; | |
6996 | ||
aa534678 DW |
6997 | if (strcmp(update, "name") == 0) { |
6998 | char *name = ident->name; | |
a951a4f7 N |
6999 | char *ep; |
7000 | int vol; | |
aa534678 | 7001 | |
4dd2df09 | 7002 | if (is_subarray_active(subarray, st->devnm)) { |
e7b84f9d | 7003 | pr_err("Unable to update name of active subarray\n"); |
aa534678 DW |
7004 | return 2; |
7005 | } | |
7006 | ||
7007 | if (!check_name(super, name, 0)) | |
7008 | return 2; | |
7009 | ||
a951a4f7 N |
7010 | vol = strtoul(subarray, &ep, 10); |
7011 | if (*ep != '\0' || vol >= super->anchor->num_raid_devs) | |
7012 | return 2; | |
7013 | ||
aa534678 | 7014 | if (st->update_tail) { |
503975b9 | 7015 | struct imsm_update_rename_array *u = xmalloc(sizeof(*u)); |
aa534678 | 7016 | |
aa534678 | 7017 | u->type = update_rename_array; |
a951a4f7 | 7018 | u->dev_idx = vol; |
aa534678 DW |
7019 | snprintf((char *) u->name, MAX_RAID_SERIAL_LEN, "%s", name); |
7020 | append_metadata_update(st, u, sizeof(*u)); | |
7021 | } else { | |
7022 | struct imsm_dev *dev; | |
7023 | int i; | |
7024 | ||
a951a4f7 | 7025 | dev = get_imsm_dev(super, vol); |
aa534678 DW |
7026 | snprintf((char *) dev->volume, MAX_RAID_SERIAL_LEN, "%s", name); |
7027 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
7028 | dev = get_imsm_dev(super, i); | |
7029 | handle_missing(super, dev); | |
7030 | } | |
7031 | super->updates_pending++; | |
7032 | } | |
7033 | } else | |
7034 | return 2; | |
7035 | ||
7036 | return 0; | |
7037 | } | |
d1e02575 | 7038 | #endif /* MDASSEMBLE */ |
bf5a934a | 7039 | |
28bce06f AK |
7040 | static int is_gen_migration(struct imsm_dev *dev) |
7041 | { | |
7534230b AK |
7042 | if (dev == NULL) |
7043 | return 0; | |
7044 | ||
28bce06f AK |
7045 | if (!dev->vol.migr_state) |
7046 | return 0; | |
7047 | ||
7048 | if (migr_type(dev) == MIGR_GEN_MIGR) | |
7049 | return 1; | |
7050 | ||
7051 | return 0; | |
7052 | } | |
7053 | ||
1e5c6983 DW |
7054 | static int is_rebuilding(struct imsm_dev *dev) |
7055 | { | |
7056 | struct imsm_map *migr_map; | |
7057 | ||
7058 | if (!dev->vol.migr_state) | |
7059 | return 0; | |
7060 | ||
7061 | if (migr_type(dev) != MIGR_REBUILD) | |
7062 | return 0; | |
7063 | ||
238c0a71 | 7064 | migr_map = get_imsm_map(dev, MAP_1); |
1e5c6983 DW |
7065 | |
7066 | if (migr_map->map_state == IMSM_T_STATE_DEGRADED) | |
7067 | return 1; | |
7068 | else | |
7069 | return 0; | |
7070 | } | |
7071 | ||
b4ab44d8 | 7072 | #ifndef MDASSEMBLE |
6ce1fbf1 AK |
7073 | static int is_initializing(struct imsm_dev *dev) |
7074 | { | |
7075 | struct imsm_map *migr_map; | |
7076 | ||
7077 | if (!dev->vol.migr_state) | |
7078 | return 0; | |
7079 | ||
7080 | if (migr_type(dev) != MIGR_INIT) | |
7081 | return 0; | |
7082 | ||
238c0a71 | 7083 | migr_map = get_imsm_map(dev, MAP_1); |
6ce1fbf1 AK |
7084 | |
7085 | if (migr_map->map_state == IMSM_T_STATE_UNINITIALIZED) | |
7086 | return 1; | |
7087 | ||
7088 | return 0; | |
6ce1fbf1 | 7089 | } |
b4ab44d8 | 7090 | #endif |
6ce1fbf1 | 7091 | |
c47b0ff6 AK |
7092 | static void update_recovery_start(struct intel_super *super, |
7093 | struct imsm_dev *dev, | |
7094 | struct mdinfo *array) | |
1e5c6983 DW |
7095 | { |
7096 | struct mdinfo *rebuild = NULL; | |
7097 | struct mdinfo *d; | |
7098 | __u32 units; | |
7099 | ||
7100 | if (!is_rebuilding(dev)) | |
7101 | return; | |
7102 | ||
7103 | /* Find the rebuild target, but punt on the dual rebuild case */ | |
7104 | for (d = array->devs; d; d = d->next) | |
7105 | if (d->recovery_start == 0) { | |
7106 | if (rebuild) | |
7107 | return; | |
7108 | rebuild = d; | |
7109 | } | |
7110 | ||
4363fd80 DW |
7111 | if (!rebuild) { |
7112 | /* (?) none of the disks are marked with | |
7113 | * IMSM_ORD_REBUILD, so assume they are missing and the | |
7114 | * disk_ord_tbl was not correctly updated | |
7115 | */ | |
1ade5cc1 | 7116 | dprintf("failed to locate out-of-sync disk\n"); |
4363fd80 DW |
7117 | return; |
7118 | } | |
7119 | ||
1e5c6983 | 7120 | units = __le32_to_cpu(dev->vol.curr_migr_unit); |
c47b0ff6 | 7121 | rebuild->recovery_start = units * blocks_per_migr_unit(super, dev); |
1e5c6983 DW |
7122 | } |
7123 | ||
9e2d750d | 7124 | #ifndef MDASSEMBLE |
276d77db | 7125 | static int recover_backup_imsm(struct supertype *st, struct mdinfo *info); |
9e2d750d | 7126 | #endif |
1e5c6983 | 7127 | |
00bbdbda | 7128 | static struct mdinfo *container_content_imsm(struct supertype *st, char *subarray) |
cdddbdbc | 7129 | { |
4f5bc454 DW |
7130 | /* Given a container loaded by load_super_imsm_all, |
7131 | * extract information about all the arrays into | |
7132 | * an mdinfo tree. | |
00bbdbda | 7133 | * If 'subarray' is given, just extract info about that array. |
4f5bc454 DW |
7134 | * |
7135 | * For each imsm_dev create an mdinfo, fill it in, | |
7136 | * then look for matching devices in super->disks | |
7137 | * and create appropriate device mdinfo. | |
7138 | */ | |
7139 | struct intel_super *super = st->sb; | |
949c47a0 | 7140 | struct imsm_super *mpb = super->anchor; |
4f5bc454 | 7141 | struct mdinfo *rest = NULL; |
00bbdbda | 7142 | unsigned int i; |
81219e70 | 7143 | int sb_errors = 0; |
abef11a3 AK |
7144 | struct dl *d; |
7145 | int spare_disks = 0; | |
cdddbdbc | 7146 | |
19482bcc AK |
7147 | /* do not assemble arrays when not all attributes are supported */ |
7148 | if (imsm_check_attributes(mpb->attributes) == 0) { | |
81219e70 | 7149 | sb_errors = 1; |
7a862a02 | 7150 | pr_err("Unsupported attributes in IMSM metadata.Arrays activation is blocked.\n"); |
19482bcc AK |
7151 | } |
7152 | ||
abef11a3 AK |
7153 | /* count spare devices, not used in maps |
7154 | */ | |
7155 | for (d = super->disks; d; d = d->next) | |
7156 | if (d->index == -1) | |
7157 | spare_disks++; | |
7158 | ||
4f5bc454 | 7159 | for (i = 0; i < mpb->num_raid_devs; i++) { |
00bbdbda N |
7160 | struct imsm_dev *dev; |
7161 | struct imsm_map *map; | |
86e3692b | 7162 | struct imsm_map *map2; |
4f5bc454 | 7163 | struct mdinfo *this; |
a6482415 N |
7164 | int slot; |
7165 | #ifndef MDASSEMBLE | |
7166 | int chunk; | |
7167 | #endif | |
00bbdbda N |
7168 | char *ep; |
7169 | ||
7170 | if (subarray && | |
7171 | (i != strtoul(subarray, &ep, 10) || *ep != '\0')) | |
7172 | continue; | |
7173 | ||
7174 | dev = get_imsm_dev(super, i); | |
238c0a71 AK |
7175 | map = get_imsm_map(dev, MAP_0); |
7176 | map2 = get_imsm_map(dev, MAP_1); | |
4f5bc454 | 7177 | |
1ce0101c DW |
7178 | /* do not publish arrays that are in the middle of an |
7179 | * unsupported migration | |
7180 | */ | |
7181 | if (dev->vol.migr_state && | |
28bce06f | 7182 | (migr_type(dev) == MIGR_STATE_CHANGE)) { |
7a862a02 | 7183 | pr_err("cannot assemble volume '%.16s': unsupported migration in progress\n", |
1ce0101c DW |
7184 | dev->volume); |
7185 | continue; | |
7186 | } | |
2db86302 LM |
7187 | /* do not publish arrays that are not support by controller's |
7188 | * OROM/EFI | |
7189 | */ | |
1ce0101c | 7190 | |
503975b9 | 7191 | this = xmalloc(sizeof(*this)); |
4f5bc454 | 7192 | |
301406c9 | 7193 | super->current_vol = i; |
a5d85af7 | 7194 | getinfo_super_imsm_volume(st, this, NULL); |
9894ec0d | 7195 | this->next = rest; |
81219e70 | 7196 | #ifndef MDASSEMBLE |
a6482415 | 7197 | chunk = __le16_to_cpu(map->blocks_per_strip) >> 1; |
81219e70 LM |
7198 | /* mdadm does not support all metadata features- set the bit in all arrays state */ |
7199 | if (!validate_geometry_imsm_orom(super, | |
7200 | get_imsm_raid_level(map), /* RAID level */ | |
7201 | imsm_level_to_layout(get_imsm_raid_level(map)), | |
7202 | map->num_members, /* raid disks */ | |
2cc699af | 7203 | &chunk, join_u32(dev->size_low, dev->size_high), |
81219e70 | 7204 | 1 /* verbose */)) { |
7a862a02 | 7205 | pr_err("IMSM RAID geometry validation failed. Array %s activation is blocked.\n", |
81219e70 LM |
7206 | dev->volume); |
7207 | this->array.state |= | |
7208 | (1<<MD_SB_BLOCK_CONTAINER_RESHAPE) | | |
7209 | (1<<MD_SB_BLOCK_VOLUME); | |
7210 | } | |
7211 | #endif | |
7212 | ||
7213 | /* if array has bad blocks, set suitable bit in all arrays state */ | |
7214 | if (sb_errors) | |
7215 | this->array.state |= | |
7216 | (1<<MD_SB_BLOCK_CONTAINER_RESHAPE) | | |
7217 | (1<<MD_SB_BLOCK_VOLUME); | |
7218 | ||
4f5bc454 | 7219 | for (slot = 0 ; slot < map->num_members; slot++) { |
1e5c6983 | 7220 | unsigned long long recovery_start; |
4f5bc454 DW |
7221 | struct mdinfo *info_d; |
7222 | struct dl *d; | |
7223 | int idx; | |
9a1608e5 | 7224 | int skip; |
7eef0453 | 7225 | __u32 ord; |
4f5bc454 | 7226 | |
9a1608e5 | 7227 | skip = 0; |
238c0a71 AK |
7228 | idx = get_imsm_disk_idx(dev, slot, MAP_0); |
7229 | ord = get_imsm_ord_tbl_ent(dev, slot, MAP_X); | |
4f5bc454 DW |
7230 | for (d = super->disks; d ; d = d->next) |
7231 | if (d->index == idx) | |
0fbd635c | 7232 | break; |
4f5bc454 | 7233 | |
1e5c6983 | 7234 | recovery_start = MaxSector; |
4f5bc454 | 7235 | if (d == NULL) |
9a1608e5 | 7236 | skip = 1; |
25ed7e59 | 7237 | if (d && is_failed(&d->disk)) |
9a1608e5 | 7238 | skip = 1; |
7eef0453 | 7239 | if (ord & IMSM_ORD_REBUILD) |
1e5c6983 | 7240 | recovery_start = 0; |
9a1608e5 | 7241 | |
1011e834 | 7242 | /* |
9a1608e5 | 7243 | * if we skip some disks the array will be assmebled degraded; |
1e5c6983 DW |
7244 | * reset resync start to avoid a dirty-degraded |
7245 | * situation when performing the intial sync | |
9a1608e5 DW |
7246 | * |
7247 | * FIXME handle dirty degraded | |
7248 | */ | |
1e5c6983 | 7249 | if ((skip || recovery_start == 0) && !dev->vol.dirty) |
b7528a20 | 7250 | this->resync_start = MaxSector; |
9a1608e5 DW |
7251 | if (skip) |
7252 | continue; | |
4f5bc454 | 7253 | |
503975b9 | 7254 | info_d = xcalloc(1, sizeof(*info_d)); |
4f5bc454 DW |
7255 | info_d->next = this->devs; |
7256 | this->devs = info_d; | |
7257 | ||
4f5bc454 DW |
7258 | info_d->disk.number = d->index; |
7259 | info_d->disk.major = d->major; | |
7260 | info_d->disk.minor = d->minor; | |
7261 | info_d->disk.raid_disk = slot; | |
1e5c6983 | 7262 | info_d->recovery_start = recovery_start; |
86e3692b AK |
7263 | if (map2) { |
7264 | if (slot < map2->num_members) | |
7265 | info_d->disk.state = (1 << MD_DISK_ACTIVE); | |
04c3c514 AK |
7266 | else |
7267 | this->array.spare_disks++; | |
86e3692b AK |
7268 | } else { |
7269 | if (slot < map->num_members) | |
7270 | info_d->disk.state = (1 << MD_DISK_ACTIVE); | |
04c3c514 AK |
7271 | else |
7272 | this->array.spare_disks++; | |
86e3692b | 7273 | } |
1e5c6983 DW |
7274 | if (info_d->recovery_start == MaxSector) |
7275 | this->array.working_disks++; | |
4f5bc454 DW |
7276 | |
7277 | info_d->events = __le32_to_cpu(mpb->generation_num); | |
5551b113 | 7278 | info_d->data_offset = pba_of_lba0(map); |
06fb291a PB |
7279 | |
7280 | if (map->raid_level == 5) { | |
7281 | info_d->component_size = | |
7282 | num_data_stripes(map) * | |
7283 | map->blocks_per_strip; | |
7284 | } else { | |
7285 | info_d->component_size = blocks_per_member(map); | |
7286 | } | |
b12796be TM |
7287 | |
7288 | info_d->bb.supported = 0; | |
7289 | get_volume_badblocks(super->bbm_log, ord_to_idx(ord), | |
7290 | info_d->data_offset, | |
7291 | info_d->component_size, | |
7292 | &info_d->bb); | |
4f5bc454 | 7293 | } |
1e5c6983 | 7294 | /* now that the disk list is up-to-date fixup recovery_start */ |
c47b0ff6 | 7295 | update_recovery_start(super, dev, this); |
abef11a3 | 7296 | this->array.spare_disks += spare_disks; |
276d77db | 7297 | |
9e2d750d | 7298 | #ifndef MDASSEMBLE |
276d77db AK |
7299 | /* check for reshape */ |
7300 | if (this->reshape_active == 1) | |
7301 | recover_backup_imsm(st, this); | |
9e2d750d | 7302 | #endif |
9a1608e5 | 7303 | rest = this; |
4f5bc454 DW |
7304 | } |
7305 | ||
7306 | return rest; | |
cdddbdbc DW |
7307 | } |
7308 | ||
3b451610 AK |
7309 | static __u8 imsm_check_degraded(struct intel_super *super, struct imsm_dev *dev, |
7310 | int failed, int look_in_map) | |
c2a1e7da | 7311 | { |
3b451610 AK |
7312 | struct imsm_map *map; |
7313 | ||
7314 | map = get_imsm_map(dev, look_in_map); | |
c2a1e7da DW |
7315 | |
7316 | if (!failed) | |
1011e834 | 7317 | return map->map_state == IMSM_T_STATE_UNINITIALIZED ? |
3393c6af | 7318 | IMSM_T_STATE_UNINITIALIZED : IMSM_T_STATE_NORMAL; |
c2a1e7da DW |
7319 | |
7320 | switch (get_imsm_raid_level(map)) { | |
7321 | case 0: | |
7322 | return IMSM_T_STATE_FAILED; | |
7323 | break; | |
7324 | case 1: | |
7325 | if (failed < map->num_members) | |
7326 | return IMSM_T_STATE_DEGRADED; | |
7327 | else | |
7328 | return IMSM_T_STATE_FAILED; | |
7329 | break; | |
7330 | case 10: | |
7331 | { | |
7332 | /** | |
c92a2527 DW |
7333 | * check to see if any mirrors have failed, otherwise we |
7334 | * are degraded. Even numbered slots are mirrored on | |
7335 | * slot+1 | |
c2a1e7da | 7336 | */ |
c2a1e7da | 7337 | int i; |
d9b420a5 N |
7338 | /* gcc -Os complains that this is unused */ |
7339 | int insync = insync; | |
c2a1e7da DW |
7340 | |
7341 | for (i = 0; i < map->num_members; i++) { | |
238c0a71 | 7342 | __u32 ord = get_imsm_ord_tbl_ent(dev, i, MAP_X); |
c92a2527 DW |
7343 | int idx = ord_to_idx(ord); |
7344 | struct imsm_disk *disk; | |
c2a1e7da | 7345 | |
c92a2527 | 7346 | /* reset the potential in-sync count on even-numbered |
1011e834 | 7347 | * slots. num_copies is always 2 for imsm raid10 |
c92a2527 DW |
7348 | */ |
7349 | if ((i & 1) == 0) | |
7350 | insync = 2; | |
c2a1e7da | 7351 | |
c92a2527 | 7352 | disk = get_imsm_disk(super, idx); |
25ed7e59 | 7353 | if (!disk || is_failed(disk) || ord & IMSM_ORD_REBUILD) |
c92a2527 | 7354 | insync--; |
c2a1e7da | 7355 | |
c92a2527 DW |
7356 | /* no in-sync disks left in this mirror the |
7357 | * array has failed | |
7358 | */ | |
7359 | if (insync == 0) | |
7360 | return IMSM_T_STATE_FAILED; | |
c2a1e7da DW |
7361 | } |
7362 | ||
7363 | return IMSM_T_STATE_DEGRADED; | |
7364 | } | |
7365 | case 5: | |
7366 | if (failed < 2) | |
7367 | return IMSM_T_STATE_DEGRADED; | |
7368 | else | |
7369 | return IMSM_T_STATE_FAILED; | |
7370 | break; | |
7371 | default: | |
7372 | break; | |
7373 | } | |
7374 | ||
7375 | return map->map_state; | |
7376 | } | |
7377 | ||
3b451610 AK |
7378 | static int imsm_count_failed(struct intel_super *super, struct imsm_dev *dev, |
7379 | int look_in_map) | |
c2a1e7da DW |
7380 | { |
7381 | int i; | |
7382 | int failed = 0; | |
7383 | struct imsm_disk *disk; | |
d5985138 AK |
7384 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
7385 | struct imsm_map *prev = get_imsm_map(dev, MAP_1); | |
68fe4598 | 7386 | struct imsm_map *map_for_loop; |
0556e1a2 DW |
7387 | __u32 ord; |
7388 | int idx; | |
d5985138 | 7389 | int idx_1; |
c2a1e7da | 7390 | |
0556e1a2 DW |
7391 | /* at the beginning of migration we set IMSM_ORD_REBUILD on |
7392 | * disks that are being rebuilt. New failures are recorded to | |
7393 | * map[0]. So we look through all the disks we started with and | |
7394 | * see if any failures are still present, or if any new ones | |
7395 | * have arrived | |
0556e1a2 | 7396 | */ |
d5985138 AK |
7397 | map_for_loop = map; |
7398 | if (prev && (map->num_members < prev->num_members)) | |
7399 | map_for_loop = prev; | |
68fe4598 LD |
7400 | |
7401 | for (i = 0; i < map_for_loop->num_members; i++) { | |
d5985138 | 7402 | idx_1 = -255; |
238c0a71 AK |
7403 | /* when MAP_X is passed both maps failures are counted |
7404 | */ | |
d5985138 | 7405 | if (prev && |
089f9d79 JS |
7406 | (look_in_map == MAP_1 || look_in_map == MAP_X) && |
7407 | i < prev->num_members) { | |
d5985138 AK |
7408 | ord = __le32_to_cpu(prev->disk_ord_tbl[i]); |
7409 | idx_1 = ord_to_idx(ord); | |
c2a1e7da | 7410 | |
d5985138 AK |
7411 | disk = get_imsm_disk(super, idx_1); |
7412 | if (!disk || is_failed(disk) || ord & IMSM_ORD_REBUILD) | |
7413 | failed++; | |
7414 | } | |
089f9d79 JS |
7415 | if ((look_in_map == MAP_0 || look_in_map == MAP_X) && |
7416 | i < map->num_members) { | |
d5985138 AK |
7417 | ord = __le32_to_cpu(map->disk_ord_tbl[i]); |
7418 | idx = ord_to_idx(ord); | |
7419 | ||
7420 | if (idx != idx_1) { | |
7421 | disk = get_imsm_disk(super, idx); | |
7422 | if (!disk || is_failed(disk) || | |
7423 | ord & IMSM_ORD_REBUILD) | |
7424 | failed++; | |
7425 | } | |
7426 | } | |
c2a1e7da DW |
7427 | } |
7428 | ||
7429 | return failed; | |
845dea95 NB |
7430 | } |
7431 | ||
97b4d0e9 DW |
7432 | #ifndef MDASSEMBLE |
7433 | static int imsm_open_new(struct supertype *c, struct active_array *a, | |
7434 | char *inst) | |
7435 | { | |
7436 | struct intel_super *super = c->sb; | |
7437 | struct imsm_super *mpb = super->anchor; | |
bbab0940 | 7438 | struct imsm_update_prealloc_bb_mem u; |
9587c373 | 7439 | |
97b4d0e9 | 7440 | if (atoi(inst) >= mpb->num_raid_devs) { |
1ade5cc1 | 7441 | pr_err("subarry index %d, out of range\n", atoi(inst)); |
97b4d0e9 DW |
7442 | return -ENODEV; |
7443 | } | |
7444 | ||
7445 | dprintf("imsm: open_new %s\n", inst); | |
7446 | a->info.container_member = atoi(inst); | |
bbab0940 TM |
7447 | |
7448 | u.type = update_prealloc_badblocks_mem; | |
7449 | imsm_update_metadata_locally(c, &u, sizeof(u)); | |
7450 | ||
97b4d0e9 DW |
7451 | return 0; |
7452 | } | |
7453 | ||
0c046afd DW |
7454 | static int is_resyncing(struct imsm_dev *dev) |
7455 | { | |
7456 | struct imsm_map *migr_map; | |
7457 | ||
7458 | if (!dev->vol.migr_state) | |
7459 | return 0; | |
7460 | ||
1484e727 DW |
7461 | if (migr_type(dev) == MIGR_INIT || |
7462 | migr_type(dev) == MIGR_REPAIR) | |
0c046afd DW |
7463 | return 1; |
7464 | ||
4c9bc37b AK |
7465 | if (migr_type(dev) == MIGR_GEN_MIGR) |
7466 | return 0; | |
7467 | ||
238c0a71 | 7468 | migr_map = get_imsm_map(dev, MAP_1); |
0c046afd | 7469 | |
089f9d79 JS |
7470 | if (migr_map->map_state == IMSM_T_STATE_NORMAL && |
7471 | dev->vol.migr_type != MIGR_GEN_MIGR) | |
0c046afd DW |
7472 | return 1; |
7473 | else | |
7474 | return 0; | |
7475 | } | |
7476 | ||
0556e1a2 DW |
7477 | /* return true if we recorded new information */ |
7478 | static int mark_failure(struct imsm_dev *dev, struct imsm_disk *disk, int idx) | |
47ee5a45 | 7479 | { |
0556e1a2 DW |
7480 | __u32 ord; |
7481 | int slot; | |
7482 | struct imsm_map *map; | |
86c54047 DW |
7483 | char buf[MAX_RAID_SERIAL_LEN+3]; |
7484 | unsigned int len, shift = 0; | |
0556e1a2 DW |
7485 | |
7486 | /* new failures are always set in map[0] */ | |
238c0a71 | 7487 | map = get_imsm_map(dev, MAP_0); |
0556e1a2 DW |
7488 | |
7489 | slot = get_imsm_disk_slot(map, idx); | |
7490 | if (slot < 0) | |
7491 | return 0; | |
7492 | ||
7493 | ord = __le32_to_cpu(map->disk_ord_tbl[slot]); | |
25ed7e59 | 7494 | if (is_failed(disk) && (ord & IMSM_ORD_REBUILD)) |
0556e1a2 DW |
7495 | return 0; |
7496 | ||
7d0c5e24 LD |
7497 | memcpy(buf, disk->serial, MAX_RAID_SERIAL_LEN); |
7498 | buf[MAX_RAID_SERIAL_LEN] = '\000'; | |
7499 | strcat(buf, ":0"); | |
86c54047 DW |
7500 | if ((len = strlen(buf)) >= MAX_RAID_SERIAL_LEN) |
7501 | shift = len - MAX_RAID_SERIAL_LEN + 1; | |
7502 | strncpy((char *)disk->serial, &buf[shift], MAX_RAID_SERIAL_LEN); | |
7503 | ||
f2f27e63 | 7504 | disk->status |= FAILED_DISK; |
0556e1a2 | 7505 | set_imsm_ord_tbl_ent(map, slot, idx | IMSM_ORD_REBUILD); |
17788994 AK |
7506 | /* mark failures in second map if second map exists and this disk |
7507 | * in this slot. | |
7508 | * This is valid for migration, initialization and rebuild | |
7509 | */ | |
7510 | if (dev->vol.migr_state) { | |
238c0a71 | 7511 | struct imsm_map *map2 = get_imsm_map(dev, MAP_1); |
0a108d63 AK |
7512 | int slot2 = get_imsm_disk_slot(map2, idx); |
7513 | ||
089f9d79 | 7514 | if (slot2 < map2->num_members && slot2 >= 0) |
0a108d63 | 7515 | set_imsm_ord_tbl_ent(map2, slot2, |
1ace8403 AK |
7516 | idx | IMSM_ORD_REBUILD); |
7517 | } | |
f21e18ca | 7518 | if (map->failed_disk_num == 0xff) |
0556e1a2 DW |
7519 | map->failed_disk_num = slot; |
7520 | return 1; | |
7521 | } | |
7522 | ||
7523 | static void mark_missing(struct imsm_dev *dev, struct imsm_disk *disk, int idx) | |
7524 | { | |
7525 | mark_failure(dev, disk, idx); | |
7526 | ||
7527 | if (disk->scsi_id == __cpu_to_le32(~(__u32)0)) | |
7528 | return; | |
7529 | ||
47ee5a45 DW |
7530 | disk->scsi_id = __cpu_to_le32(~(__u32)0); |
7531 | memmove(&disk->serial[0], &disk->serial[1], MAX_RAID_SERIAL_LEN - 1); | |
7532 | } | |
7533 | ||
33414a01 DW |
7534 | static void handle_missing(struct intel_super *super, struct imsm_dev *dev) |
7535 | { | |
33414a01 | 7536 | struct dl *dl; |
33414a01 DW |
7537 | |
7538 | if (!super->missing) | |
7539 | return; | |
33414a01 | 7540 | |
79b68f1b PC |
7541 | /* When orom adds replacement for missing disk it does |
7542 | * not remove entry of missing disk, but just updates map with | |
7543 | * new added disk. So it is not enough just to test if there is | |
7544 | * any missing disk, we have to look if there are any failed disks | |
7545 | * in map to stop migration */ | |
7546 | ||
33414a01 | 7547 | dprintf("imsm: mark missing\n"); |
3d59f0c0 AK |
7548 | /* end process for initialization and rebuild only |
7549 | */ | |
7550 | if (is_gen_migration(dev) == 0) { | |
7551 | __u8 map_state; | |
7552 | int failed; | |
7553 | ||
7554 | failed = imsm_count_failed(super, dev, MAP_0); | |
7555 | map_state = imsm_check_degraded(super, dev, failed, MAP_0); | |
7556 | ||
79b68f1b PC |
7557 | if (failed) |
7558 | end_migration(dev, super, map_state); | |
3d59f0c0 | 7559 | } |
33414a01 DW |
7560 | for (dl = super->missing; dl; dl = dl->next) |
7561 | mark_missing(dev, &dl->disk, dl->index); | |
7562 | super->updates_pending++; | |
7563 | } | |
7564 | ||
f3871fdc AK |
7565 | static unsigned long long imsm_set_array_size(struct imsm_dev *dev, |
7566 | long long new_size) | |
70bdf0dc | 7567 | { |
238c0a71 | 7568 | int used_disks = imsm_num_data_members(dev, MAP_0); |
70bdf0dc AK |
7569 | unsigned long long array_blocks; |
7570 | struct imsm_map *map; | |
7571 | ||
7572 | if (used_disks == 0) { | |
7573 | /* when problems occures | |
7574 | * return current array_blocks value | |
7575 | */ | |
7576 | array_blocks = __le32_to_cpu(dev->size_high); | |
7577 | array_blocks = array_blocks << 32; | |
7578 | array_blocks += __le32_to_cpu(dev->size_low); | |
7579 | ||
7580 | return array_blocks; | |
7581 | } | |
7582 | ||
7583 | /* set array size in metadata | |
7584 | */ | |
f3871fdc AK |
7585 | if (new_size <= 0) { |
7586 | /* OLCE size change is caused by added disks | |
7587 | */ | |
7588 | map = get_imsm_map(dev, MAP_0); | |
7589 | array_blocks = blocks_per_member(map) * used_disks; | |
7590 | } else { | |
7591 | /* Online Volume Size Change | |
7592 | * Using available free space | |
7593 | */ | |
7594 | array_blocks = new_size; | |
7595 | } | |
70bdf0dc AK |
7596 | |
7597 | /* round array size down to closest MB | |
7598 | */ | |
7599 | array_blocks = (array_blocks >> SECT_PER_MB_SHIFT) << SECT_PER_MB_SHIFT; | |
7600 | dev->size_low = __cpu_to_le32((__u32)array_blocks); | |
7601 | dev->size_high = __cpu_to_le32((__u32)(array_blocks >> 32)); | |
7602 | ||
7603 | return array_blocks; | |
7604 | } | |
7605 | ||
28bce06f AK |
7606 | static void imsm_set_disk(struct active_array *a, int n, int state); |
7607 | ||
0e2d1a4e AK |
7608 | static void imsm_progress_container_reshape(struct intel_super *super) |
7609 | { | |
7610 | /* if no device has a migr_state, but some device has a | |
7611 | * different number of members than the previous device, start | |
7612 | * changing the number of devices in this device to match | |
7613 | * previous. | |
7614 | */ | |
7615 | struct imsm_super *mpb = super->anchor; | |
7616 | int prev_disks = -1; | |
7617 | int i; | |
1dfaa380 | 7618 | int copy_map_size; |
0e2d1a4e AK |
7619 | |
7620 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
7621 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
238c0a71 | 7622 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
0e2d1a4e AK |
7623 | struct imsm_map *map2; |
7624 | int prev_num_members; | |
0e2d1a4e AK |
7625 | |
7626 | if (dev->vol.migr_state) | |
7627 | return; | |
7628 | ||
7629 | if (prev_disks == -1) | |
7630 | prev_disks = map->num_members; | |
7631 | if (prev_disks == map->num_members) | |
7632 | continue; | |
7633 | ||
7634 | /* OK, this array needs to enter reshape mode. | |
7635 | * i.e it needs a migr_state | |
7636 | */ | |
7637 | ||
1dfaa380 | 7638 | copy_map_size = sizeof_imsm_map(map); |
0e2d1a4e AK |
7639 | prev_num_members = map->num_members; |
7640 | map->num_members = prev_disks; | |
7641 | dev->vol.migr_state = 1; | |
7642 | dev->vol.curr_migr_unit = 0; | |
ea672ee1 | 7643 | set_migr_type(dev, MIGR_GEN_MIGR); |
0e2d1a4e AK |
7644 | for (i = prev_num_members; |
7645 | i < map->num_members; i++) | |
7646 | set_imsm_ord_tbl_ent(map, i, i); | |
238c0a71 | 7647 | map2 = get_imsm_map(dev, MAP_1); |
0e2d1a4e | 7648 | /* Copy the current map */ |
1dfaa380 | 7649 | memcpy(map2, map, copy_map_size); |
0e2d1a4e AK |
7650 | map2->num_members = prev_num_members; |
7651 | ||
f3871fdc | 7652 | imsm_set_array_size(dev, -1); |
51d83f5d | 7653 | super->clean_migration_record_by_mdmon = 1; |
0e2d1a4e AK |
7654 | super->updates_pending++; |
7655 | } | |
7656 | } | |
7657 | ||
aad6f216 | 7658 | /* Handle dirty -> clean transititions, resync and reshape. Degraded and rebuild |
0c046afd DW |
7659 | * states are handled in imsm_set_disk() with one exception, when a |
7660 | * resync is stopped due to a new failure this routine will set the | |
7661 | * 'degraded' state for the array. | |
7662 | */ | |
01f157d7 | 7663 | static int imsm_set_array_state(struct active_array *a, int consistent) |
a862209d DW |
7664 | { |
7665 | int inst = a->info.container_member; | |
7666 | struct intel_super *super = a->container->sb; | |
949c47a0 | 7667 | struct imsm_dev *dev = get_imsm_dev(super, inst); |
238c0a71 | 7668 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
3b451610 AK |
7669 | int failed = imsm_count_failed(super, dev, MAP_0); |
7670 | __u8 map_state = imsm_check_degraded(super, dev, failed, MAP_0); | |
1e5c6983 | 7671 | __u32 blocks_per_unit; |
a862209d | 7672 | |
1af97990 AK |
7673 | if (dev->vol.migr_state && |
7674 | dev->vol.migr_type == MIGR_GEN_MIGR) { | |
7675 | /* array state change is blocked due to reshape action | |
aad6f216 N |
7676 | * We might need to |
7677 | * - abort the reshape (if last_checkpoint is 0 and action!= reshape) | |
7678 | * - finish the reshape (if last_checkpoint is big and action != reshape) | |
7679 | * - update curr_migr_unit | |
1af97990 | 7680 | */ |
aad6f216 N |
7681 | if (a->curr_action == reshape) { |
7682 | /* still reshaping, maybe update curr_migr_unit */ | |
633b5610 | 7683 | goto mark_checkpoint; |
aad6f216 N |
7684 | } else { |
7685 | if (a->last_checkpoint == 0 && a->prev_action == reshape) { | |
7686 | /* for some reason we aborted the reshape. | |
b66e591b AK |
7687 | * |
7688 | * disable automatic metadata rollback | |
7689 | * user action is required to recover process | |
aad6f216 | 7690 | */ |
b66e591b | 7691 | if (0) { |
238c0a71 AK |
7692 | struct imsm_map *map2 = |
7693 | get_imsm_map(dev, MAP_1); | |
7694 | dev->vol.migr_state = 0; | |
7695 | set_migr_type(dev, 0); | |
7696 | dev->vol.curr_migr_unit = 0; | |
7697 | memcpy(map, map2, | |
7698 | sizeof_imsm_map(map2)); | |
7699 | super->updates_pending++; | |
b66e591b | 7700 | } |
aad6f216 N |
7701 | } |
7702 | if (a->last_checkpoint >= a->info.component_size) { | |
7703 | unsigned long long array_blocks; | |
7704 | int used_disks; | |
e154ced3 | 7705 | struct mdinfo *mdi; |
aad6f216 | 7706 | |
238c0a71 | 7707 | used_disks = imsm_num_data_members(dev, MAP_0); |
d55adef9 AK |
7708 | if (used_disks > 0) { |
7709 | array_blocks = | |
5551b113 | 7710 | blocks_per_member(map) * |
d55adef9 AK |
7711 | used_disks; |
7712 | /* round array size down to closest MB | |
7713 | */ | |
7714 | array_blocks = (array_blocks | |
7715 | >> SECT_PER_MB_SHIFT) | |
7716 | << SECT_PER_MB_SHIFT; | |
d55adef9 AK |
7717 | a->info.custom_array_size = array_blocks; |
7718 | /* encourage manager to update array | |
7719 | * size | |
7720 | */ | |
e154ced3 | 7721 | |
d55adef9 | 7722 | a->check_reshape = 1; |
633b5610 | 7723 | } |
e154ced3 AK |
7724 | /* finalize online capacity expansion/reshape */ |
7725 | for (mdi = a->info.devs; mdi; mdi = mdi->next) | |
7726 | imsm_set_disk(a, | |
7727 | mdi->disk.raid_disk, | |
7728 | mdi->curr_state); | |
7729 | ||
0e2d1a4e | 7730 | imsm_progress_container_reshape(super); |
e154ced3 | 7731 | } |
aad6f216 | 7732 | } |
1af97990 AK |
7733 | } |
7734 | ||
47ee5a45 | 7735 | /* before we activate this array handle any missing disks */ |
33414a01 DW |
7736 | if (consistent == 2) |
7737 | handle_missing(super, dev); | |
1e5c6983 | 7738 | |
0c046afd | 7739 | if (consistent == 2 && |
b7941fd6 | 7740 | (!is_resync_complete(&a->info) || |
0c046afd DW |
7741 | map_state != IMSM_T_STATE_NORMAL || |
7742 | dev->vol.migr_state)) | |
01f157d7 | 7743 | consistent = 0; |
272906ef | 7744 | |
b7941fd6 | 7745 | if (is_resync_complete(&a->info)) { |
0c046afd | 7746 | /* complete intialization / resync, |
0556e1a2 DW |
7747 | * recovery and interrupted recovery is completed in |
7748 | * ->set_disk | |
0c046afd DW |
7749 | */ |
7750 | if (is_resyncing(dev)) { | |
7751 | dprintf("imsm: mark resync done\n"); | |
809da78e | 7752 | end_migration(dev, super, map_state); |
115c3803 | 7753 | super->updates_pending++; |
484240d8 | 7754 | a->last_checkpoint = 0; |
115c3803 | 7755 | } |
b9172665 AK |
7756 | } else if ((!is_resyncing(dev) && !failed) && |
7757 | (imsm_reshape_blocks_arrays_changes(super) == 0)) { | |
0c046afd | 7758 | /* mark the start of the init process if nothing is failed */ |
b7941fd6 | 7759 | dprintf("imsm: mark resync start\n"); |
1484e727 | 7760 | if (map->map_state == IMSM_T_STATE_UNINITIALIZED) |
8e59f3d8 | 7761 | migrate(dev, super, IMSM_T_STATE_NORMAL, MIGR_INIT); |
1484e727 | 7762 | else |
8e59f3d8 | 7763 | migrate(dev, super, IMSM_T_STATE_NORMAL, MIGR_REPAIR); |
3393c6af | 7764 | super->updates_pending++; |
115c3803 | 7765 | } |
a862209d | 7766 | |
633b5610 | 7767 | mark_checkpoint: |
5b83bacf AK |
7768 | /* skip checkpointing for general migration, |
7769 | * it is controlled in mdadm | |
7770 | */ | |
7771 | if (is_gen_migration(dev)) | |
7772 | goto skip_mark_checkpoint; | |
7773 | ||
1e5c6983 | 7774 | /* check if we can update curr_migr_unit from resync_start, recovery_start */ |
c47b0ff6 | 7775 | blocks_per_unit = blocks_per_migr_unit(super, dev); |
4f0a7acc | 7776 | if (blocks_per_unit) { |
1e5c6983 DW |
7777 | __u32 units32; |
7778 | __u64 units; | |
7779 | ||
4f0a7acc | 7780 | units = a->last_checkpoint / blocks_per_unit; |
1e5c6983 DW |
7781 | units32 = units; |
7782 | ||
7783 | /* check that we did not overflow 32-bits, and that | |
7784 | * curr_migr_unit needs updating | |
7785 | */ | |
7786 | if (units32 == units && | |
bfd80a56 | 7787 | units32 != 0 && |
1e5c6983 DW |
7788 | __le32_to_cpu(dev->vol.curr_migr_unit) != units32) { |
7789 | dprintf("imsm: mark checkpoint (%u)\n", units32); | |
7790 | dev->vol.curr_migr_unit = __cpu_to_le32(units32); | |
7791 | super->updates_pending++; | |
7792 | } | |
7793 | } | |
f8f603f1 | 7794 | |
5b83bacf | 7795 | skip_mark_checkpoint: |
3393c6af | 7796 | /* mark dirty / clean */ |
0c046afd | 7797 | if (dev->vol.dirty != !consistent) { |
b7941fd6 | 7798 | dprintf("imsm: mark '%s'\n", consistent ? "clean" : "dirty"); |
0c046afd DW |
7799 | if (consistent) |
7800 | dev->vol.dirty = 0; | |
7801 | else | |
7802 | dev->vol.dirty = 1; | |
a862209d DW |
7803 | super->updates_pending++; |
7804 | } | |
28bce06f | 7805 | |
01f157d7 | 7806 | return consistent; |
a862209d DW |
7807 | } |
7808 | ||
6f50473f TM |
7809 | static int imsm_disk_slot_to_ord(struct active_array *a, int slot) |
7810 | { | |
7811 | int inst = a->info.container_member; | |
7812 | struct intel_super *super = a->container->sb; | |
7813 | struct imsm_dev *dev = get_imsm_dev(super, inst); | |
7814 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
7815 | ||
7816 | if (slot > map->num_members) { | |
7817 | pr_err("imsm: imsm_disk_slot_to_ord %d out of range 0..%d\n", | |
7818 | slot, map->num_members - 1); | |
7819 | return -1; | |
7820 | } | |
7821 | ||
7822 | if (slot < 0) | |
7823 | return -1; | |
7824 | ||
7825 | return get_imsm_ord_tbl_ent(dev, slot, MAP_0); | |
7826 | } | |
7827 | ||
8d45d196 | 7828 | static void imsm_set_disk(struct active_array *a, int n, int state) |
845dea95 | 7829 | { |
8d45d196 DW |
7830 | int inst = a->info.container_member; |
7831 | struct intel_super *super = a->container->sb; | |
949c47a0 | 7832 | struct imsm_dev *dev = get_imsm_dev(super, inst); |
238c0a71 | 7833 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
8d45d196 | 7834 | struct imsm_disk *disk; |
7ce05701 LD |
7835 | struct mdinfo *mdi; |
7836 | int recovery_not_finished = 0; | |
0c046afd | 7837 | int failed; |
6f50473f | 7838 | int ord; |
0c046afd | 7839 | __u8 map_state; |
8d45d196 | 7840 | |
6f50473f TM |
7841 | ord = imsm_disk_slot_to_ord(a, n); |
7842 | if (ord < 0) | |
8d45d196 DW |
7843 | return; |
7844 | ||
4e6e574a | 7845 | dprintf("imsm: set_disk %d:%x\n", n, state); |
b10b37b8 | 7846 | disk = get_imsm_disk(super, ord_to_idx(ord)); |
8d45d196 | 7847 | |
5802a811 | 7848 | /* check for new failures */ |
0556e1a2 DW |
7849 | if (state & DS_FAULTY) { |
7850 | if (mark_failure(dev, disk, ord_to_idx(ord))) | |
7851 | super->updates_pending++; | |
8d45d196 | 7852 | } |
47ee5a45 | 7853 | |
19859edc | 7854 | /* check if in_sync */ |
0556e1a2 | 7855 | if (state & DS_INSYNC && ord & IMSM_ORD_REBUILD && is_rebuilding(dev)) { |
238c0a71 | 7856 | struct imsm_map *migr_map = get_imsm_map(dev, MAP_1); |
b10b37b8 DW |
7857 | |
7858 | set_imsm_ord_tbl_ent(migr_map, n, ord_to_idx(ord)); | |
19859edc DW |
7859 | super->updates_pending++; |
7860 | } | |
8d45d196 | 7861 | |
3b451610 AK |
7862 | failed = imsm_count_failed(super, dev, MAP_0); |
7863 | map_state = imsm_check_degraded(super, dev, failed, MAP_0); | |
5802a811 | 7864 | |
0c046afd | 7865 | /* check if recovery complete, newly degraded, or failed */ |
94002678 AK |
7866 | dprintf("imsm: Detected transition to state "); |
7867 | switch (map_state) { | |
7868 | case IMSM_T_STATE_NORMAL: /* transition to normal state */ | |
7869 | dprintf("normal: "); | |
7870 | if (is_rebuilding(dev)) { | |
1ade5cc1 | 7871 | dprintf_cont("while rebuilding"); |
7ce05701 LD |
7872 | /* check if recovery is really finished */ |
7873 | for (mdi = a->info.devs; mdi ; mdi = mdi->next) | |
7874 | if (mdi->recovery_start != MaxSector) { | |
7875 | recovery_not_finished = 1; | |
7876 | break; | |
7877 | } | |
7878 | if (recovery_not_finished) { | |
1ade5cc1 N |
7879 | dprintf_cont("\n"); |
7880 | dprintf("Rebuild has not finished yet, state not changed"); | |
7ce05701 LD |
7881 | if (a->last_checkpoint < mdi->recovery_start) { |
7882 | a->last_checkpoint = mdi->recovery_start; | |
7883 | super->updates_pending++; | |
7884 | } | |
7885 | break; | |
7886 | } | |
94002678 | 7887 | end_migration(dev, super, map_state); |
238c0a71 | 7888 | map = get_imsm_map(dev, MAP_0); |
94002678 AK |
7889 | map->failed_disk_num = ~0; |
7890 | super->updates_pending++; | |
7891 | a->last_checkpoint = 0; | |
7892 | break; | |
7893 | } | |
7894 | if (is_gen_migration(dev)) { | |
1ade5cc1 | 7895 | dprintf_cont("while general migration"); |
bf2f0071 | 7896 | if (a->last_checkpoint >= a->info.component_size) |
809da78e | 7897 | end_migration(dev, super, map_state); |
94002678 AK |
7898 | else |
7899 | map->map_state = map_state; | |
238c0a71 | 7900 | map = get_imsm_map(dev, MAP_0); |
28bce06f | 7901 | map->failed_disk_num = ~0; |
94002678 | 7902 | super->updates_pending++; |
bf2f0071 | 7903 | break; |
94002678 AK |
7904 | } |
7905 | break; | |
7906 | case IMSM_T_STATE_DEGRADED: /* transition to degraded state */ | |
1ade5cc1 | 7907 | dprintf_cont("degraded: "); |
089f9d79 | 7908 | if (map->map_state != map_state && !dev->vol.migr_state) { |
1ade5cc1 | 7909 | dprintf_cont("mark degraded"); |
94002678 AK |
7910 | map->map_state = map_state; |
7911 | super->updates_pending++; | |
7912 | a->last_checkpoint = 0; | |
7913 | break; | |
7914 | } | |
7915 | if (is_rebuilding(dev)) { | |
1ade5cc1 | 7916 | dprintf_cont("while rebuilding."); |
94002678 | 7917 | if (map->map_state != map_state) { |
1ade5cc1 | 7918 | dprintf_cont(" Map state change"); |
94002678 AK |
7919 | end_migration(dev, super, map_state); |
7920 | super->updates_pending++; | |
7921 | } | |
7922 | break; | |
7923 | } | |
7924 | if (is_gen_migration(dev)) { | |
1ade5cc1 | 7925 | dprintf_cont("while general migration"); |
bf2f0071 | 7926 | if (a->last_checkpoint >= a->info.component_size) |
809da78e | 7927 | end_migration(dev, super, map_state); |
94002678 AK |
7928 | else { |
7929 | map->map_state = map_state; | |
3b451610 | 7930 | manage_second_map(super, dev); |
94002678 AK |
7931 | } |
7932 | super->updates_pending++; | |
bf2f0071 | 7933 | break; |
28bce06f | 7934 | } |
6ce1fbf1 | 7935 | if (is_initializing(dev)) { |
1ade5cc1 | 7936 | dprintf_cont("while initialization."); |
6ce1fbf1 AK |
7937 | map->map_state = map_state; |
7938 | super->updates_pending++; | |
7939 | break; | |
7940 | } | |
94002678 AK |
7941 | break; |
7942 | case IMSM_T_STATE_FAILED: /* transition to failed state */ | |
1ade5cc1 | 7943 | dprintf_cont("failed: "); |
94002678 | 7944 | if (is_gen_migration(dev)) { |
1ade5cc1 | 7945 | dprintf_cont("while general migration"); |
94002678 AK |
7946 | map->map_state = map_state; |
7947 | super->updates_pending++; | |
7948 | break; | |
7949 | } | |
7950 | if (map->map_state != map_state) { | |
1ade5cc1 | 7951 | dprintf_cont("mark failed"); |
94002678 AK |
7952 | end_migration(dev, super, map_state); |
7953 | super->updates_pending++; | |
7954 | a->last_checkpoint = 0; | |
7955 | break; | |
7956 | } | |
7957 | break; | |
7958 | default: | |
1ade5cc1 | 7959 | dprintf_cont("state %i\n", map_state); |
5802a811 | 7960 | } |
1ade5cc1 | 7961 | dprintf_cont("\n"); |
845dea95 NB |
7962 | } |
7963 | ||
f796af5d | 7964 | static int store_imsm_mpb(int fd, struct imsm_super *mpb) |
c2a1e7da | 7965 | { |
f796af5d | 7966 | void *buf = mpb; |
c2a1e7da DW |
7967 | __u32 mpb_size = __le32_to_cpu(mpb->mpb_size); |
7968 | unsigned long long dsize; | |
7969 | unsigned long long sectors; | |
f36a9ecd | 7970 | unsigned int sector_size; |
c2a1e7da | 7971 | |
f36a9ecd | 7972 | get_dev_sector_size(fd, NULL, §or_size); |
c2a1e7da DW |
7973 | get_dev_size(fd, NULL, &dsize); |
7974 | ||
f36a9ecd | 7975 | if (mpb_size > sector_size) { |
272f648f | 7976 | /* -1 to account for anchor */ |
f36a9ecd | 7977 | sectors = mpb_sectors(mpb, sector_size) - 1; |
c2a1e7da | 7978 | |
272f648f | 7979 | /* write the extended mpb to the sectors preceeding the anchor */ |
f36a9ecd PB |
7980 | if (lseek64(fd, dsize - (sector_size * (2 + sectors)), |
7981 | SEEK_SET) < 0) | |
272f648f | 7982 | return 1; |
c2a1e7da | 7983 | |
f36a9ecd PB |
7984 | if ((unsigned long long)write(fd, buf + sector_size, |
7985 | sector_size * sectors) != sector_size * sectors) | |
272f648f DW |
7986 | return 1; |
7987 | } | |
c2a1e7da | 7988 | |
272f648f | 7989 | /* first block is stored on second to last sector of the disk */ |
f36a9ecd | 7990 | if (lseek64(fd, dsize - (sector_size * 2), SEEK_SET) < 0) |
c2a1e7da DW |
7991 | return 1; |
7992 | ||
f36a9ecd | 7993 | if (write(fd, buf, sector_size) != sector_size) |
c2a1e7da DW |
7994 | return 1; |
7995 | ||
c2a1e7da DW |
7996 | return 0; |
7997 | } | |
7998 | ||
2e735d19 | 7999 | static void imsm_sync_metadata(struct supertype *container) |
845dea95 | 8000 | { |
2e735d19 | 8001 | struct intel_super *super = container->sb; |
c2a1e7da | 8002 | |
1a64be56 | 8003 | dprintf("sync metadata: %d\n", super->updates_pending); |
c2a1e7da DW |
8004 | if (!super->updates_pending) |
8005 | return; | |
8006 | ||
36988a3d | 8007 | write_super_imsm(container, 0); |
c2a1e7da DW |
8008 | |
8009 | super->updates_pending = 0; | |
845dea95 NB |
8010 | } |
8011 | ||
272906ef DW |
8012 | static struct dl *imsm_readd(struct intel_super *super, int idx, struct active_array *a) |
8013 | { | |
8014 | struct imsm_dev *dev = get_imsm_dev(super, a->info.container_member); | |
238c0a71 | 8015 | int i = get_imsm_disk_idx(dev, idx, MAP_X); |
272906ef DW |
8016 | struct dl *dl; |
8017 | ||
8018 | for (dl = super->disks; dl; dl = dl->next) | |
8019 | if (dl->index == i) | |
8020 | break; | |
8021 | ||
25ed7e59 | 8022 | if (dl && is_failed(&dl->disk)) |
272906ef DW |
8023 | dl = NULL; |
8024 | ||
8025 | if (dl) | |
1ade5cc1 | 8026 | dprintf("found %x:%x\n", dl->major, dl->minor); |
272906ef DW |
8027 | |
8028 | return dl; | |
8029 | } | |
8030 | ||
a20d2ba5 | 8031 | static struct dl *imsm_add_spare(struct intel_super *super, int slot, |
8ba77d32 AK |
8032 | struct active_array *a, int activate_new, |
8033 | struct mdinfo *additional_test_list) | |
272906ef DW |
8034 | { |
8035 | struct imsm_dev *dev = get_imsm_dev(super, a->info.container_member); | |
238c0a71 | 8036 | int idx = get_imsm_disk_idx(dev, slot, MAP_X); |
a20d2ba5 DW |
8037 | struct imsm_super *mpb = super->anchor; |
8038 | struct imsm_map *map; | |
272906ef DW |
8039 | unsigned long long pos; |
8040 | struct mdinfo *d; | |
8041 | struct extent *ex; | |
a20d2ba5 | 8042 | int i, j; |
272906ef | 8043 | int found; |
569cc43f DW |
8044 | __u32 array_start = 0; |
8045 | __u32 array_end = 0; | |
272906ef | 8046 | struct dl *dl; |
6c932028 | 8047 | struct mdinfo *test_list; |
272906ef DW |
8048 | |
8049 | for (dl = super->disks; dl; dl = dl->next) { | |
8050 | /* If in this array, skip */ | |
8051 | for (d = a->info.devs ; d ; d = d->next) | |
e553d2a4 DW |
8052 | if (d->state_fd >= 0 && |
8053 | d->disk.major == dl->major && | |
272906ef | 8054 | d->disk.minor == dl->minor) { |
8ba77d32 AK |
8055 | dprintf("%x:%x already in array\n", |
8056 | dl->major, dl->minor); | |
272906ef DW |
8057 | break; |
8058 | } | |
8059 | if (d) | |
8060 | continue; | |
6c932028 AK |
8061 | test_list = additional_test_list; |
8062 | while (test_list) { | |
8063 | if (test_list->disk.major == dl->major && | |
8064 | test_list->disk.minor == dl->minor) { | |
8ba77d32 AK |
8065 | dprintf("%x:%x already in additional test list\n", |
8066 | dl->major, dl->minor); | |
8067 | break; | |
8068 | } | |
6c932028 | 8069 | test_list = test_list->next; |
8ba77d32 | 8070 | } |
6c932028 | 8071 | if (test_list) |
8ba77d32 | 8072 | continue; |
272906ef | 8073 | |
e553d2a4 | 8074 | /* skip in use or failed drives */ |
25ed7e59 | 8075 | if (is_failed(&dl->disk) || idx == dl->index || |
df474657 DW |
8076 | dl->index == -2) { |
8077 | dprintf("%x:%x status (failed: %d index: %d)\n", | |
25ed7e59 | 8078 | dl->major, dl->minor, is_failed(&dl->disk), idx); |
9a1608e5 DW |
8079 | continue; |
8080 | } | |
8081 | ||
a20d2ba5 DW |
8082 | /* skip pure spares when we are looking for partially |
8083 | * assimilated drives | |
8084 | */ | |
8085 | if (dl->index == -1 && !activate_new) | |
8086 | continue; | |
8087 | ||
272906ef | 8088 | /* Does this unused device have the requisite free space? |
a20d2ba5 | 8089 | * It needs to be able to cover all member volumes |
272906ef DW |
8090 | */ |
8091 | ex = get_extents(super, dl); | |
8092 | if (!ex) { | |
8093 | dprintf("cannot get extents\n"); | |
8094 | continue; | |
8095 | } | |
a20d2ba5 DW |
8096 | for (i = 0; i < mpb->num_raid_devs; i++) { |
8097 | dev = get_imsm_dev(super, i); | |
238c0a71 | 8098 | map = get_imsm_map(dev, MAP_0); |
272906ef | 8099 | |
a20d2ba5 DW |
8100 | /* check if this disk is already a member of |
8101 | * this array | |
272906ef | 8102 | */ |
620b1713 | 8103 | if (get_imsm_disk_slot(map, dl->index) >= 0) |
a20d2ba5 DW |
8104 | continue; |
8105 | ||
8106 | found = 0; | |
8107 | j = 0; | |
8108 | pos = 0; | |
5551b113 | 8109 | array_start = pba_of_lba0(map); |
329c8278 | 8110 | array_end = array_start + |
5551b113 | 8111 | blocks_per_member(map) - 1; |
a20d2ba5 DW |
8112 | |
8113 | do { | |
8114 | /* check that we can start at pba_of_lba0 with | |
8115 | * blocks_per_member of space | |
8116 | */ | |
329c8278 | 8117 | if (array_start >= pos && array_end < ex[j].start) { |
a20d2ba5 DW |
8118 | found = 1; |
8119 | break; | |
8120 | } | |
8121 | pos = ex[j].start + ex[j].size; | |
8122 | j++; | |
8123 | } while (ex[j-1].size); | |
8124 | ||
8125 | if (!found) | |
272906ef | 8126 | break; |
a20d2ba5 | 8127 | } |
272906ef DW |
8128 | |
8129 | free(ex); | |
a20d2ba5 | 8130 | if (i < mpb->num_raid_devs) { |
329c8278 DW |
8131 | dprintf("%x:%x does not have %u to %u available\n", |
8132 | dl->major, dl->minor, array_start, array_end); | |
272906ef DW |
8133 | /* No room */ |
8134 | continue; | |
a20d2ba5 DW |
8135 | } |
8136 | return dl; | |
272906ef DW |
8137 | } |
8138 | ||
8139 | return dl; | |
8140 | } | |
8141 | ||
95d07a2c LM |
8142 | static int imsm_rebuild_allowed(struct supertype *cont, int dev_idx, int failed) |
8143 | { | |
8144 | struct imsm_dev *dev2; | |
8145 | struct imsm_map *map; | |
8146 | struct dl *idisk; | |
8147 | int slot; | |
8148 | int idx; | |
8149 | __u8 state; | |
8150 | ||
8151 | dev2 = get_imsm_dev(cont->sb, dev_idx); | |
8152 | if (dev2) { | |
238c0a71 | 8153 | state = imsm_check_degraded(cont->sb, dev2, failed, MAP_0); |
95d07a2c | 8154 | if (state == IMSM_T_STATE_FAILED) { |
238c0a71 | 8155 | map = get_imsm_map(dev2, MAP_0); |
95d07a2c LM |
8156 | if (!map) |
8157 | return 1; | |
8158 | for (slot = 0; slot < map->num_members; slot++) { | |
8159 | /* | |
8160 | * Check if failed disks are deleted from intel | |
8161 | * disk list or are marked to be deleted | |
8162 | */ | |
238c0a71 | 8163 | idx = get_imsm_disk_idx(dev2, slot, MAP_X); |
95d07a2c LM |
8164 | idisk = get_imsm_dl_disk(cont->sb, idx); |
8165 | /* | |
8166 | * Do not rebuild the array if failed disks | |
8167 | * from failed sub-array are not removed from | |
8168 | * container. | |
8169 | */ | |
8170 | if (idisk && | |
8171 | is_failed(&idisk->disk) && | |
8172 | (idisk->action != DISK_REMOVE)) | |
8173 | return 0; | |
8174 | } | |
8175 | } | |
8176 | } | |
8177 | return 1; | |
8178 | } | |
8179 | ||
88758e9d DW |
8180 | static struct mdinfo *imsm_activate_spare(struct active_array *a, |
8181 | struct metadata_update **updates) | |
8182 | { | |
8183 | /** | |
d23fe947 DW |
8184 | * Find a device with unused free space and use it to replace a |
8185 | * failed/vacant region in an array. We replace failed regions one a | |
8186 | * array at a time. The result is that a new spare disk will be added | |
8187 | * to the first failed array and after the monitor has finished | |
8188 | * propagating failures the remainder will be consumed. | |
88758e9d | 8189 | * |
d23fe947 DW |
8190 | * FIXME add a capability for mdmon to request spares from another |
8191 | * container. | |
88758e9d DW |
8192 | */ |
8193 | ||
8194 | struct intel_super *super = a->container->sb; | |
88758e9d | 8195 | int inst = a->info.container_member; |
949c47a0 | 8196 | struct imsm_dev *dev = get_imsm_dev(super, inst); |
238c0a71 | 8197 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
88758e9d DW |
8198 | int failed = a->info.array.raid_disks; |
8199 | struct mdinfo *rv = NULL; | |
8200 | struct mdinfo *d; | |
8201 | struct mdinfo *di; | |
8202 | struct metadata_update *mu; | |
8203 | struct dl *dl; | |
8204 | struct imsm_update_activate_spare *u; | |
8205 | int num_spares = 0; | |
8206 | int i; | |
95d07a2c | 8207 | int allowed; |
88758e9d DW |
8208 | |
8209 | for (d = a->info.devs ; d ; d = d->next) { | |
8210 | if ((d->curr_state & DS_FAULTY) && | |
8211 | d->state_fd >= 0) | |
8212 | /* wait for Removal to happen */ | |
8213 | return NULL; | |
8214 | if (d->state_fd >= 0) | |
8215 | failed--; | |
8216 | } | |
8217 | ||
8218 | dprintf("imsm: activate spare: inst=%d failed=%d (%d) level=%d\n", | |
8219 | inst, failed, a->info.array.raid_disks, a->info.array.level); | |
1af97990 | 8220 | |
e2962bfc AK |
8221 | if (imsm_reshape_blocks_arrays_changes(super)) |
8222 | return NULL; | |
1af97990 | 8223 | |
fc8ca064 AK |
8224 | /* Cannot activate another spare if rebuild is in progress already |
8225 | */ | |
8226 | if (is_rebuilding(dev)) { | |
7a862a02 | 8227 | dprintf("imsm: No spare activation allowed. Rebuild in progress already.\n"); |
fc8ca064 AK |
8228 | return NULL; |
8229 | } | |
8230 | ||
89c67882 AK |
8231 | if (a->info.array.level == 4) |
8232 | /* No repair for takeovered array | |
8233 | * imsm doesn't support raid4 | |
8234 | */ | |
8235 | return NULL; | |
8236 | ||
3b451610 AK |
8237 | if (imsm_check_degraded(super, dev, failed, MAP_0) != |
8238 | IMSM_T_STATE_DEGRADED) | |
88758e9d DW |
8239 | return NULL; |
8240 | ||
83ca7d45 AP |
8241 | if (get_imsm_map(dev, MAP_0)->map_state == IMSM_T_STATE_UNINITIALIZED) { |
8242 | dprintf("imsm: No spare activation allowed. Volume is not initialized.\n"); | |
8243 | return NULL; | |
8244 | } | |
8245 | ||
95d07a2c LM |
8246 | /* |
8247 | * If there are any failed disks check state of the other volume. | |
8248 | * Block rebuild if the another one is failed until failed disks | |
8249 | * are removed from container. | |
8250 | */ | |
8251 | if (failed) { | |
7a862a02 | 8252 | dprintf("found failed disks in %.*s, check if there anotherfailed sub-array.\n", |
c4acd1e5 | 8253 | MAX_RAID_SERIAL_LEN, dev->volume); |
95d07a2c LM |
8254 | /* check if states of the other volumes allow for rebuild */ |
8255 | for (i = 0; i < super->anchor->num_raid_devs; i++) { | |
8256 | if (i != inst) { | |
8257 | allowed = imsm_rebuild_allowed(a->container, | |
8258 | i, failed); | |
8259 | if (!allowed) | |
8260 | return NULL; | |
8261 | } | |
8262 | } | |
8263 | } | |
8264 | ||
88758e9d | 8265 | /* For each slot, if it is not working, find a spare */ |
88758e9d DW |
8266 | for (i = 0; i < a->info.array.raid_disks; i++) { |
8267 | for (d = a->info.devs ; d ; d = d->next) | |
8268 | if (d->disk.raid_disk == i) | |
8269 | break; | |
8270 | dprintf("found %d: %p %x\n", i, d, d?d->curr_state:0); | |
8271 | if (d && (d->state_fd >= 0)) | |
8272 | continue; | |
8273 | ||
272906ef | 8274 | /* |
a20d2ba5 DW |
8275 | * OK, this device needs recovery. Try to re-add the |
8276 | * previous occupant of this slot, if this fails see if | |
8277 | * we can continue the assimilation of a spare that was | |
8278 | * partially assimilated, finally try to activate a new | |
8279 | * spare. | |
272906ef DW |
8280 | */ |
8281 | dl = imsm_readd(super, i, a); | |
8282 | if (!dl) | |
b303fe21 | 8283 | dl = imsm_add_spare(super, i, a, 0, rv); |
a20d2ba5 | 8284 | if (!dl) |
b303fe21 | 8285 | dl = imsm_add_spare(super, i, a, 1, rv); |
272906ef DW |
8286 | if (!dl) |
8287 | continue; | |
1011e834 | 8288 | |
272906ef | 8289 | /* found a usable disk with enough space */ |
503975b9 | 8290 | di = xcalloc(1, sizeof(*di)); |
272906ef DW |
8291 | |
8292 | /* dl->index will be -1 in the case we are activating a | |
8293 | * pristine spare. imsm_process_update() will create a | |
8294 | * new index in this case. Once a disk is found to be | |
8295 | * failed in all member arrays it is kicked from the | |
8296 | * metadata | |
8297 | */ | |
8298 | di->disk.number = dl->index; | |
d23fe947 | 8299 | |
272906ef DW |
8300 | /* (ab)use di->devs to store a pointer to the device |
8301 | * we chose | |
8302 | */ | |
8303 | di->devs = (struct mdinfo *) dl; | |
8304 | ||
8305 | di->disk.raid_disk = i; | |
8306 | di->disk.major = dl->major; | |
8307 | di->disk.minor = dl->minor; | |
8308 | di->disk.state = 0; | |
d23534e4 | 8309 | di->recovery_start = 0; |
5551b113 | 8310 | di->data_offset = pba_of_lba0(map); |
272906ef DW |
8311 | di->component_size = a->info.component_size; |
8312 | di->container_member = inst; | |
b12796be | 8313 | di->bb.supported = 0; |
148acb7b | 8314 | super->random = random32(); |
272906ef DW |
8315 | di->next = rv; |
8316 | rv = di; | |
8317 | num_spares++; | |
8318 | dprintf("%x:%x to be %d at %llu\n", dl->major, dl->minor, | |
8319 | i, di->data_offset); | |
88758e9d DW |
8320 | } |
8321 | ||
8322 | if (!rv) | |
8323 | /* No spares found */ | |
8324 | return rv; | |
8325 | /* Now 'rv' has a list of devices to return. | |
8326 | * Create a metadata_update record to update the | |
8327 | * disk_ord_tbl for the array | |
8328 | */ | |
503975b9 | 8329 | mu = xmalloc(sizeof(*mu)); |
1011e834 | 8330 | mu->buf = xcalloc(num_spares, |
503975b9 | 8331 | sizeof(struct imsm_update_activate_spare)); |
88758e9d | 8332 | mu->space = NULL; |
cb23f1f4 | 8333 | mu->space_list = NULL; |
88758e9d DW |
8334 | mu->len = sizeof(struct imsm_update_activate_spare) * num_spares; |
8335 | mu->next = *updates; | |
8336 | u = (struct imsm_update_activate_spare *) mu->buf; | |
8337 | ||
8338 | for (di = rv ; di ; di = di->next) { | |
8339 | u->type = update_activate_spare; | |
d23fe947 DW |
8340 | u->dl = (struct dl *) di->devs; |
8341 | di->devs = NULL; | |
88758e9d DW |
8342 | u->slot = di->disk.raid_disk; |
8343 | u->array = inst; | |
8344 | u->next = u + 1; | |
8345 | u++; | |
8346 | } | |
8347 | (u-1)->next = NULL; | |
8348 | *updates = mu; | |
8349 | ||
8350 | return rv; | |
8351 | } | |
8352 | ||
54c2c1ea | 8353 | static int disks_overlap(struct intel_super *super, int idx, struct imsm_update_create_array *u) |
8273f55e | 8354 | { |
54c2c1ea | 8355 | struct imsm_dev *dev = get_imsm_dev(super, idx); |
238c0a71 AK |
8356 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
8357 | struct imsm_map *new_map = get_imsm_map(&u->dev, MAP_0); | |
54c2c1ea DW |
8358 | struct disk_info *inf = get_disk_info(u); |
8359 | struct imsm_disk *disk; | |
8273f55e DW |
8360 | int i; |
8361 | int j; | |
8273f55e | 8362 | |
54c2c1ea | 8363 | for (i = 0; i < map->num_members; i++) { |
238c0a71 | 8364 | disk = get_imsm_disk(super, get_imsm_disk_idx(dev, i, MAP_X)); |
54c2c1ea DW |
8365 | for (j = 0; j < new_map->num_members; j++) |
8366 | if (serialcmp(disk->serial, inf[j].serial) == 0) | |
8273f55e DW |
8367 | return 1; |
8368 | } | |
8369 | ||
8370 | return 0; | |
8371 | } | |
8372 | ||
1a64be56 LM |
8373 | static struct dl *get_disk_super(struct intel_super *super, int major, int minor) |
8374 | { | |
594dc1b8 JS |
8375 | struct dl *dl; |
8376 | ||
1a64be56 | 8377 | for (dl = super->disks; dl; dl = dl->next) |
089f9d79 | 8378 | if (dl->major == major && dl->minor == minor) |
1a64be56 LM |
8379 | return dl; |
8380 | return NULL; | |
8381 | } | |
8382 | ||
8383 | static int remove_disk_super(struct intel_super *super, int major, int minor) | |
8384 | { | |
594dc1b8 | 8385 | struct dl *prev; |
1a64be56 LM |
8386 | struct dl *dl; |
8387 | ||
8388 | prev = NULL; | |
8389 | for (dl = super->disks; dl; dl = dl->next) { | |
089f9d79 | 8390 | if (dl->major == major && dl->minor == minor) { |
1a64be56 LM |
8391 | /* remove */ |
8392 | if (prev) | |
8393 | prev->next = dl->next; | |
8394 | else | |
8395 | super->disks = dl->next; | |
8396 | dl->next = NULL; | |
8397 | __free_imsm_disk(dl); | |
1ade5cc1 | 8398 | dprintf("removed %x:%x\n", major, minor); |
1a64be56 LM |
8399 | break; |
8400 | } | |
8401 | prev = dl; | |
8402 | } | |
8403 | return 0; | |
8404 | } | |
8405 | ||
f21e18ca | 8406 | static void imsm_delete(struct intel_super *super, struct dl **dlp, unsigned index); |
ae6aad82 | 8407 | |
1a64be56 LM |
8408 | static int add_remove_disk_update(struct intel_super *super) |
8409 | { | |
8410 | int check_degraded = 0; | |
594dc1b8 JS |
8411 | struct dl *disk; |
8412 | ||
1a64be56 LM |
8413 | /* add/remove some spares to/from the metadata/contrainer */ |
8414 | while (super->disk_mgmt_list) { | |
8415 | struct dl *disk_cfg; | |
8416 | ||
8417 | disk_cfg = super->disk_mgmt_list; | |
8418 | super->disk_mgmt_list = disk_cfg->next; | |
8419 | disk_cfg->next = NULL; | |
8420 | ||
8421 | if (disk_cfg->action == DISK_ADD) { | |
8422 | disk_cfg->next = super->disks; | |
8423 | super->disks = disk_cfg; | |
8424 | check_degraded = 1; | |
1ade5cc1 N |
8425 | dprintf("added %x:%x\n", |
8426 | disk_cfg->major, disk_cfg->minor); | |
1a64be56 LM |
8427 | } else if (disk_cfg->action == DISK_REMOVE) { |
8428 | dprintf("Disk remove action processed: %x.%x\n", | |
8429 | disk_cfg->major, disk_cfg->minor); | |
8430 | disk = get_disk_super(super, | |
8431 | disk_cfg->major, | |
8432 | disk_cfg->minor); | |
8433 | if (disk) { | |
8434 | /* store action status */ | |
8435 | disk->action = DISK_REMOVE; | |
8436 | /* remove spare disks only */ | |
8437 | if (disk->index == -1) { | |
8438 | remove_disk_super(super, | |
8439 | disk_cfg->major, | |
8440 | disk_cfg->minor); | |
8441 | } | |
8442 | } | |
8443 | /* release allocate disk structure */ | |
8444 | __free_imsm_disk(disk_cfg); | |
8445 | } | |
8446 | } | |
8447 | return check_degraded; | |
8448 | } | |
8449 | ||
a29911da PC |
8450 | static int apply_reshape_migration_update(struct imsm_update_reshape_migration *u, |
8451 | struct intel_super *super, | |
8452 | void ***space_list) | |
8453 | { | |
8454 | struct intel_dev *id; | |
8455 | void **tofree = NULL; | |
8456 | int ret_val = 0; | |
8457 | ||
1ade5cc1 | 8458 | dprintf("(enter)\n"); |
089f9d79 | 8459 | if (u->subdev < 0 || u->subdev > 1) { |
a29911da PC |
8460 | dprintf("imsm: Error: Wrong subdev: %i\n", u->subdev); |
8461 | return ret_val; | |
8462 | } | |
089f9d79 | 8463 | if (space_list == NULL || *space_list == NULL) { |
a29911da PC |
8464 | dprintf("imsm: Error: Memory is not allocated\n"); |
8465 | return ret_val; | |
8466 | } | |
8467 | ||
8468 | for (id = super->devlist ; id; id = id->next) { | |
8469 | if (id->index == (unsigned)u->subdev) { | |
8470 | struct imsm_dev *dev = get_imsm_dev(super, u->subdev); | |
8471 | struct imsm_map *map; | |
8472 | struct imsm_dev *new_dev = | |
8473 | (struct imsm_dev *)*space_list; | |
238c0a71 | 8474 | struct imsm_map *migr_map = get_imsm_map(dev, MAP_1); |
a29911da PC |
8475 | int to_state; |
8476 | struct dl *new_disk; | |
8477 | ||
8478 | if (new_dev == NULL) | |
8479 | return ret_val; | |
8480 | *space_list = **space_list; | |
8481 | memcpy(new_dev, dev, sizeof_imsm_dev(dev, 0)); | |
238c0a71 | 8482 | map = get_imsm_map(new_dev, MAP_0); |
a29911da PC |
8483 | if (migr_map) { |
8484 | dprintf("imsm: Error: migration in progress"); | |
8485 | return ret_val; | |
8486 | } | |
8487 | ||
8488 | to_state = map->map_state; | |
8489 | if ((u->new_level == 5) && (map->raid_level == 0)) { | |
8490 | map->num_members++; | |
8491 | /* this should not happen */ | |
8492 | if (u->new_disks[0] < 0) { | |
8493 | map->failed_disk_num = | |
8494 | map->num_members - 1; | |
8495 | to_state = IMSM_T_STATE_DEGRADED; | |
8496 | } else | |
8497 | to_state = IMSM_T_STATE_NORMAL; | |
8498 | } | |
8e59f3d8 | 8499 | migrate(new_dev, super, to_state, MIGR_GEN_MIGR); |
a29911da PC |
8500 | if (u->new_level > -1) |
8501 | map->raid_level = u->new_level; | |
238c0a71 | 8502 | migr_map = get_imsm_map(new_dev, MAP_1); |
a29911da PC |
8503 | if ((u->new_level == 5) && |
8504 | (migr_map->raid_level == 0)) { | |
8505 | int ord = map->num_members - 1; | |
8506 | migr_map->num_members--; | |
8507 | if (u->new_disks[0] < 0) | |
8508 | ord |= IMSM_ORD_REBUILD; | |
8509 | set_imsm_ord_tbl_ent(map, | |
8510 | map->num_members - 1, | |
8511 | ord); | |
8512 | } | |
8513 | id->dev = new_dev; | |
8514 | tofree = (void **)dev; | |
8515 | ||
4bba0439 PC |
8516 | /* update chunk size |
8517 | */ | |
06fb291a PB |
8518 | if (u->new_chunksize > 0) { |
8519 | unsigned long long num_data_stripes; | |
8520 | int used_disks = | |
8521 | imsm_num_data_members(dev, MAP_0); | |
8522 | ||
8523 | if (used_disks == 0) | |
8524 | return ret_val; | |
8525 | ||
4bba0439 PC |
8526 | map->blocks_per_strip = |
8527 | __cpu_to_le16(u->new_chunksize * 2); | |
06fb291a PB |
8528 | num_data_stripes = |
8529 | (join_u32(dev->size_low, dev->size_high) | |
8530 | / used_disks); | |
8531 | num_data_stripes /= map->blocks_per_strip; | |
8532 | num_data_stripes /= map->num_domains; | |
8533 | set_num_data_stripes(map, num_data_stripes); | |
8534 | } | |
4bba0439 | 8535 | |
a29911da PC |
8536 | /* add disk |
8537 | */ | |
089f9d79 JS |
8538 | if (u->new_level != 5 || migr_map->raid_level != 0 || |
8539 | migr_map->raid_level == map->raid_level) | |
a29911da PC |
8540 | goto skip_disk_add; |
8541 | ||
8542 | if (u->new_disks[0] >= 0) { | |
8543 | /* use passes spare | |
8544 | */ | |
8545 | new_disk = get_disk_super(super, | |
8546 | major(u->new_disks[0]), | |
8547 | minor(u->new_disks[0])); | |
7a862a02 | 8548 | dprintf("imsm: new disk for reshape is: %i:%i (%p, index = %i)\n", |
a29911da PC |
8549 | major(u->new_disks[0]), |
8550 | minor(u->new_disks[0]), | |
8551 | new_disk, new_disk->index); | |
8552 | if (new_disk == NULL) | |
8553 | goto error_disk_add; | |
8554 | ||
8555 | new_disk->index = map->num_members - 1; | |
8556 | /* slot to fill in autolayout | |
8557 | */ | |
8558 | new_disk->raiddisk = new_disk->index; | |
8559 | new_disk->disk.status |= CONFIGURED_DISK; | |
8560 | new_disk->disk.status &= ~SPARE_DISK; | |
8561 | } else | |
8562 | goto error_disk_add; | |
8563 | ||
8564 | skip_disk_add: | |
8565 | *tofree = *space_list; | |
8566 | /* calculate new size | |
8567 | */ | |
f3871fdc | 8568 | imsm_set_array_size(new_dev, -1); |
a29911da PC |
8569 | |
8570 | ret_val = 1; | |
8571 | } | |
8572 | } | |
8573 | ||
8574 | if (tofree) | |
8575 | *space_list = tofree; | |
8576 | return ret_val; | |
8577 | ||
8578 | error_disk_add: | |
8579 | dprintf("Error: imsm: Cannot find disk.\n"); | |
8580 | return ret_val; | |
8581 | } | |
8582 | ||
f3871fdc AK |
8583 | static int apply_size_change_update(struct imsm_update_size_change *u, |
8584 | struct intel_super *super) | |
8585 | { | |
8586 | struct intel_dev *id; | |
8587 | int ret_val = 0; | |
8588 | ||
1ade5cc1 | 8589 | dprintf("(enter)\n"); |
089f9d79 | 8590 | if (u->subdev < 0 || u->subdev > 1) { |
f3871fdc AK |
8591 | dprintf("imsm: Error: Wrong subdev: %i\n", u->subdev); |
8592 | return ret_val; | |
8593 | } | |
8594 | ||
8595 | for (id = super->devlist ; id; id = id->next) { | |
8596 | if (id->index == (unsigned)u->subdev) { | |
8597 | struct imsm_dev *dev = get_imsm_dev(super, u->subdev); | |
8598 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
8599 | int used_disks = imsm_num_data_members(dev, MAP_0); | |
8600 | unsigned long long blocks_per_member; | |
06fb291a | 8601 | unsigned long long num_data_stripes; |
f3871fdc AK |
8602 | |
8603 | /* calculate new size | |
8604 | */ | |
8605 | blocks_per_member = u->new_size / used_disks; | |
06fb291a PB |
8606 | num_data_stripes = blocks_per_member / |
8607 | map->blocks_per_strip; | |
8608 | num_data_stripes /= map->num_domains; | |
8609 | dprintf("(size: %llu, blocks per member: %llu, num_data_stipes: %llu)\n", | |
8610 | u->new_size, blocks_per_member, | |
8611 | num_data_stripes); | |
f3871fdc | 8612 | set_blocks_per_member(map, blocks_per_member); |
06fb291a | 8613 | set_num_data_stripes(map, num_data_stripes); |
f3871fdc AK |
8614 | imsm_set_array_size(dev, u->new_size); |
8615 | ||
8616 | ret_val = 1; | |
8617 | break; | |
8618 | } | |
8619 | } | |
8620 | ||
8621 | return ret_val; | |
8622 | } | |
8623 | ||
061d7da3 | 8624 | static int apply_update_activate_spare(struct imsm_update_activate_spare *u, |
ca9de185 | 8625 | struct intel_super *super, |
061d7da3 LO |
8626 | struct active_array *active_array) |
8627 | { | |
8628 | struct imsm_super *mpb = super->anchor; | |
8629 | struct imsm_dev *dev = get_imsm_dev(super, u->array); | |
238c0a71 | 8630 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
061d7da3 LO |
8631 | struct imsm_map *migr_map; |
8632 | struct active_array *a; | |
8633 | struct imsm_disk *disk; | |
8634 | __u8 to_state; | |
8635 | struct dl *dl; | |
8636 | unsigned int found; | |
8637 | int failed; | |
5961eeec | 8638 | int victim; |
061d7da3 | 8639 | int i; |
5961eeec | 8640 | int second_map_created = 0; |
061d7da3 | 8641 | |
5961eeec | 8642 | for (; u; u = u->next) { |
238c0a71 | 8643 | victim = get_imsm_disk_idx(dev, u->slot, MAP_X); |
061d7da3 | 8644 | |
5961eeec | 8645 | if (victim < 0) |
8646 | return 0; | |
061d7da3 | 8647 | |
5961eeec | 8648 | for (dl = super->disks; dl; dl = dl->next) |
8649 | if (dl == u->dl) | |
8650 | break; | |
061d7da3 | 8651 | |
5961eeec | 8652 | if (!dl) { |
7a862a02 | 8653 | pr_err("error: imsm_activate_spare passed an unknown disk (index: %d)\n", |
5961eeec | 8654 | u->dl->index); |
8655 | return 0; | |
8656 | } | |
061d7da3 | 8657 | |
5961eeec | 8658 | /* count failures (excluding rebuilds and the victim) |
8659 | * to determine map[0] state | |
8660 | */ | |
8661 | failed = 0; | |
8662 | for (i = 0; i < map->num_members; i++) { | |
8663 | if (i == u->slot) | |
8664 | continue; | |
8665 | disk = get_imsm_disk(super, | |
238c0a71 | 8666 | get_imsm_disk_idx(dev, i, MAP_X)); |
5961eeec | 8667 | if (!disk || is_failed(disk)) |
8668 | failed++; | |
8669 | } | |
061d7da3 | 8670 | |
5961eeec | 8671 | /* adding a pristine spare, assign a new index */ |
8672 | if (dl->index < 0) { | |
8673 | dl->index = super->anchor->num_disks; | |
8674 | super->anchor->num_disks++; | |
8675 | } | |
8676 | disk = &dl->disk; | |
8677 | disk->status |= CONFIGURED_DISK; | |
8678 | disk->status &= ~SPARE_DISK; | |
8679 | ||
8680 | /* mark rebuild */ | |
238c0a71 | 8681 | to_state = imsm_check_degraded(super, dev, failed, MAP_0); |
5961eeec | 8682 | if (!second_map_created) { |
8683 | second_map_created = 1; | |
8684 | map->map_state = IMSM_T_STATE_DEGRADED; | |
8685 | migrate(dev, super, to_state, MIGR_REBUILD); | |
8686 | } else | |
8687 | map->map_state = to_state; | |
238c0a71 | 8688 | migr_map = get_imsm_map(dev, MAP_1); |
5961eeec | 8689 | set_imsm_ord_tbl_ent(map, u->slot, dl->index); |
8690 | set_imsm_ord_tbl_ent(migr_map, u->slot, | |
8691 | dl->index | IMSM_ORD_REBUILD); | |
8692 | ||
8693 | /* update the family_num to mark a new container | |
8694 | * generation, being careful to record the existing | |
8695 | * family_num in orig_family_num to clean up after | |
8696 | * earlier mdadm versions that neglected to set it. | |
8697 | */ | |
8698 | if (mpb->orig_family_num == 0) | |
8699 | mpb->orig_family_num = mpb->family_num; | |
8700 | mpb->family_num += super->random; | |
8701 | ||
8702 | /* count arrays using the victim in the metadata */ | |
8703 | found = 0; | |
8704 | for (a = active_array; a ; a = a->next) { | |
8705 | dev = get_imsm_dev(super, a->info.container_member); | |
238c0a71 | 8706 | map = get_imsm_map(dev, MAP_0); |
061d7da3 | 8707 | |
5961eeec | 8708 | if (get_imsm_disk_slot(map, victim) >= 0) |
8709 | found++; | |
8710 | } | |
061d7da3 | 8711 | |
5961eeec | 8712 | /* delete the victim if it is no longer being |
8713 | * utilized anywhere | |
061d7da3 | 8714 | */ |
5961eeec | 8715 | if (!found) { |
8716 | struct dl **dlp; | |
061d7da3 | 8717 | |
5961eeec | 8718 | /* We know that 'manager' isn't touching anything, |
8719 | * so it is safe to delete | |
8720 | */ | |
8721 | for (dlp = &super->disks; *dlp; dlp = &(*dlp)->next) | |
061d7da3 LO |
8722 | if ((*dlp)->index == victim) |
8723 | break; | |
5961eeec | 8724 | |
8725 | /* victim may be on the missing list */ | |
8726 | if (!*dlp) | |
8727 | for (dlp = &super->missing; *dlp; | |
8728 | dlp = &(*dlp)->next) | |
8729 | if ((*dlp)->index == victim) | |
8730 | break; | |
8731 | imsm_delete(super, dlp, victim); | |
8732 | } | |
061d7da3 LO |
8733 | } |
8734 | ||
8735 | return 1; | |
8736 | } | |
a29911da | 8737 | |
2e5dc010 N |
8738 | static int apply_reshape_container_disks_update(struct imsm_update_reshape *u, |
8739 | struct intel_super *super, | |
8740 | void ***space_list) | |
8741 | { | |
8742 | struct dl *new_disk; | |
8743 | struct intel_dev *id; | |
8744 | int i; | |
8745 | int delta_disks = u->new_raid_disks - u->old_raid_disks; | |
ee4beede | 8746 | int disk_count = u->old_raid_disks; |
2e5dc010 N |
8747 | void **tofree = NULL; |
8748 | int devices_to_reshape = 1; | |
8749 | struct imsm_super *mpb = super->anchor; | |
8750 | int ret_val = 0; | |
d098291a | 8751 | unsigned int dev_id; |
2e5dc010 | 8752 | |
1ade5cc1 | 8753 | dprintf("(enter)\n"); |
2e5dc010 N |
8754 | |
8755 | /* enable spares to use in array */ | |
8756 | for (i = 0; i < delta_disks; i++) { | |
8757 | new_disk = get_disk_super(super, | |
8758 | major(u->new_disks[i]), | |
8759 | minor(u->new_disks[i])); | |
7a862a02 | 8760 | dprintf("imsm: new disk for reshape is: %i:%i (%p, index = %i)\n", |
2e5dc010 N |
8761 | major(u->new_disks[i]), minor(u->new_disks[i]), |
8762 | new_disk, new_disk->index); | |
089f9d79 JS |
8763 | if (new_disk == NULL || |
8764 | (new_disk->index >= 0 && | |
8765 | new_disk->index < u->old_raid_disks)) | |
2e5dc010 | 8766 | goto update_reshape_exit; |
ee4beede | 8767 | new_disk->index = disk_count++; |
2e5dc010 N |
8768 | /* slot to fill in autolayout |
8769 | */ | |
8770 | new_disk->raiddisk = new_disk->index; | |
8771 | new_disk->disk.status |= | |
8772 | CONFIGURED_DISK; | |
8773 | new_disk->disk.status &= ~SPARE_DISK; | |
8774 | } | |
8775 | ||
ed7333bd AK |
8776 | dprintf("imsm: volume set mpb->num_raid_devs = %i\n", |
8777 | mpb->num_raid_devs); | |
2e5dc010 N |
8778 | /* manage changes in volume |
8779 | */ | |
d098291a | 8780 | for (dev_id = 0; dev_id < mpb->num_raid_devs; dev_id++) { |
2e5dc010 N |
8781 | void **sp = *space_list; |
8782 | struct imsm_dev *newdev; | |
8783 | struct imsm_map *newmap, *oldmap; | |
8784 | ||
d098291a AK |
8785 | for (id = super->devlist ; id; id = id->next) { |
8786 | if (id->index == dev_id) | |
8787 | break; | |
8788 | } | |
8789 | if (id == NULL) | |
8790 | break; | |
2e5dc010 N |
8791 | if (!sp) |
8792 | continue; | |
8793 | *space_list = *sp; | |
8794 | newdev = (void*)sp; | |
8795 | /* Copy the dev, but not (all of) the map */ | |
8796 | memcpy(newdev, id->dev, sizeof(*newdev)); | |
238c0a71 AK |
8797 | oldmap = get_imsm_map(id->dev, MAP_0); |
8798 | newmap = get_imsm_map(newdev, MAP_0); | |
2e5dc010 N |
8799 | /* Copy the current map */ |
8800 | memcpy(newmap, oldmap, sizeof_imsm_map(oldmap)); | |
8801 | /* update one device only | |
8802 | */ | |
8803 | if (devices_to_reshape) { | |
ed7333bd AK |
8804 | dprintf("imsm: modifying subdev: %i\n", |
8805 | id->index); | |
2e5dc010 N |
8806 | devices_to_reshape--; |
8807 | newdev->vol.migr_state = 1; | |
8808 | newdev->vol.curr_migr_unit = 0; | |
ea672ee1 | 8809 | set_migr_type(newdev, MIGR_GEN_MIGR); |
2e5dc010 N |
8810 | newmap->num_members = u->new_raid_disks; |
8811 | for (i = 0; i < delta_disks; i++) { | |
8812 | set_imsm_ord_tbl_ent(newmap, | |
8813 | u->old_raid_disks + i, | |
8814 | u->old_raid_disks + i); | |
8815 | } | |
8816 | /* New map is correct, now need to save old map | |
8817 | */ | |
238c0a71 | 8818 | newmap = get_imsm_map(newdev, MAP_1); |
2e5dc010 N |
8819 | memcpy(newmap, oldmap, sizeof_imsm_map(oldmap)); |
8820 | ||
f3871fdc | 8821 | imsm_set_array_size(newdev, -1); |
2e5dc010 N |
8822 | } |
8823 | ||
8824 | sp = (void **)id->dev; | |
8825 | id->dev = newdev; | |
8826 | *sp = tofree; | |
8827 | tofree = sp; | |
8e59f3d8 AK |
8828 | |
8829 | /* Clear migration record */ | |
8830 | memset(super->migr_rec, 0, sizeof(struct migr_record)); | |
2e5dc010 | 8831 | } |
819bc634 AK |
8832 | if (tofree) |
8833 | *space_list = tofree; | |
2e5dc010 N |
8834 | ret_val = 1; |
8835 | ||
8836 | update_reshape_exit: | |
8837 | ||
8838 | return ret_val; | |
8839 | } | |
8840 | ||
bb025c2f | 8841 | static int apply_takeover_update(struct imsm_update_takeover *u, |
8ca6df95 KW |
8842 | struct intel_super *super, |
8843 | void ***space_list) | |
bb025c2f KW |
8844 | { |
8845 | struct imsm_dev *dev = NULL; | |
8ca6df95 KW |
8846 | struct intel_dev *dv; |
8847 | struct imsm_dev *dev_new; | |
bb025c2f KW |
8848 | struct imsm_map *map; |
8849 | struct dl *dm, *du; | |
8ca6df95 | 8850 | int i; |
bb025c2f KW |
8851 | |
8852 | for (dv = super->devlist; dv; dv = dv->next) | |
8853 | if (dv->index == (unsigned int)u->subarray) { | |
8854 | dev = dv->dev; | |
8855 | break; | |
8856 | } | |
8857 | ||
8858 | if (dev == NULL) | |
8859 | return 0; | |
8860 | ||
238c0a71 | 8861 | map = get_imsm_map(dev, MAP_0); |
bb025c2f KW |
8862 | |
8863 | if (u->direction == R10_TO_R0) { | |
06fb291a PB |
8864 | unsigned long long num_data_stripes; |
8865 | ||
8866 | map->num_domains = 1; | |
8867 | num_data_stripes = blocks_per_member(map); | |
8868 | num_data_stripes /= map->blocks_per_strip; | |
8869 | num_data_stripes /= map->num_domains; | |
8870 | set_num_data_stripes(map, num_data_stripes); | |
8871 | ||
43d5ec18 | 8872 | /* Number of failed disks must be half of initial disk number */ |
3b451610 AK |
8873 | if (imsm_count_failed(super, dev, MAP_0) != |
8874 | (map->num_members / 2)) | |
43d5ec18 KW |
8875 | return 0; |
8876 | ||
bb025c2f KW |
8877 | /* iterate through devices to mark removed disks as spare */ |
8878 | for (dm = super->disks; dm; dm = dm->next) { | |
8879 | if (dm->disk.status & FAILED_DISK) { | |
8880 | int idx = dm->index; | |
8881 | /* update indexes on the disk list */ | |
8882 | /* FIXME this loop-with-the-loop looks wrong, I'm not convinced | |
8883 | the index values will end up being correct.... NB */ | |
8884 | for (du = super->disks; du; du = du->next) | |
8885 | if (du->index > idx) | |
8886 | du->index--; | |
8887 | /* mark as spare disk */ | |
a8619d23 | 8888 | mark_spare(dm); |
bb025c2f KW |
8889 | } |
8890 | } | |
bb025c2f KW |
8891 | /* update map */ |
8892 | map->num_members = map->num_members / 2; | |
8893 | map->map_state = IMSM_T_STATE_NORMAL; | |
8894 | map->num_domains = 1; | |
8895 | map->raid_level = 0; | |
8896 | map->failed_disk_num = -1; | |
8897 | } | |
8898 | ||
8ca6df95 KW |
8899 | if (u->direction == R0_TO_R10) { |
8900 | void **space; | |
8901 | /* update slots in current disk list */ | |
8902 | for (dm = super->disks; dm; dm = dm->next) { | |
8903 | if (dm->index >= 0) | |
8904 | dm->index *= 2; | |
8905 | } | |
8906 | /* create new *missing* disks */ | |
8907 | for (i = 0; i < map->num_members; i++) { | |
8908 | space = *space_list; | |
8909 | if (!space) | |
8910 | continue; | |
8911 | *space_list = *space; | |
8912 | du = (void *)space; | |
8913 | memcpy(du, super->disks, sizeof(*du)); | |
8ca6df95 KW |
8914 | du->fd = -1; |
8915 | du->minor = 0; | |
8916 | du->major = 0; | |
8917 | du->index = (i * 2) + 1; | |
8918 | sprintf((char *)du->disk.serial, | |
8919 | " MISSING_%d", du->index); | |
8920 | sprintf((char *)du->serial, | |
8921 | "MISSING_%d", du->index); | |
8922 | du->next = super->missing; | |
8923 | super->missing = du; | |
8924 | } | |
8925 | /* create new dev and map */ | |
8926 | space = *space_list; | |
8927 | if (!space) | |
8928 | return 0; | |
8929 | *space_list = *space; | |
8930 | dev_new = (void *)space; | |
8931 | memcpy(dev_new, dev, sizeof(*dev)); | |
8932 | /* update new map */ | |
238c0a71 | 8933 | map = get_imsm_map(dev_new, MAP_0); |
8ca6df95 | 8934 | map->num_members = map->num_members * 2; |
1a2487c2 | 8935 | map->map_state = IMSM_T_STATE_DEGRADED; |
8ca6df95 KW |
8936 | map->num_domains = 2; |
8937 | map->raid_level = 1; | |
8938 | /* replace dev<->dev_new */ | |
8939 | dv->dev = dev_new; | |
8940 | } | |
bb025c2f KW |
8941 | /* update disk order table */ |
8942 | for (du = super->disks; du; du = du->next) | |
8943 | if (du->index >= 0) | |
8944 | set_imsm_ord_tbl_ent(map, du->index, du->index); | |
8ca6df95 | 8945 | for (du = super->missing; du; du = du->next) |
1a2487c2 KW |
8946 | if (du->index >= 0) { |
8947 | set_imsm_ord_tbl_ent(map, du->index, du->index); | |
e4c72d1d | 8948 | mark_missing(dv->dev, &du->disk, du->index); |
1a2487c2 | 8949 | } |
bb025c2f KW |
8950 | |
8951 | return 1; | |
8952 | } | |
8953 | ||
e8319a19 DW |
8954 | static void imsm_process_update(struct supertype *st, |
8955 | struct metadata_update *update) | |
8956 | { | |
8957 | /** | |
8958 | * crack open the metadata_update envelope to find the update record | |
8959 | * update can be one of: | |
d195167d AK |
8960 | * update_reshape_container_disks - all the arrays in the container |
8961 | * are being reshaped to have more devices. We need to mark | |
8962 | * the arrays for general migration and convert selected spares | |
8963 | * into active devices. | |
8964 | * update_activate_spare - a spare device has replaced a failed | |
1011e834 N |
8965 | * device in an array, update the disk_ord_tbl. If this disk is |
8966 | * present in all member arrays then also clear the SPARE_DISK | |
8967 | * flag | |
d195167d AK |
8968 | * update_create_array |
8969 | * update_kill_array | |
8970 | * update_rename_array | |
8971 | * update_add_remove_disk | |
e8319a19 DW |
8972 | */ |
8973 | struct intel_super *super = st->sb; | |
4d7b1503 | 8974 | struct imsm_super *mpb; |
e8319a19 DW |
8975 | enum imsm_update_type type = *(enum imsm_update_type *) update->buf; |
8976 | ||
4d7b1503 DW |
8977 | /* update requires a larger buf but the allocation failed */ |
8978 | if (super->next_len && !super->next_buf) { | |
8979 | super->next_len = 0; | |
8980 | return; | |
8981 | } | |
8982 | ||
8983 | if (super->next_buf) { | |
8984 | memcpy(super->next_buf, super->buf, super->len); | |
8985 | free(super->buf); | |
8986 | super->len = super->next_len; | |
8987 | super->buf = super->next_buf; | |
8988 | ||
8989 | super->next_len = 0; | |
8990 | super->next_buf = NULL; | |
8991 | } | |
8992 | ||
8993 | mpb = super->anchor; | |
8994 | ||
e8319a19 | 8995 | switch (type) { |
0ec5d470 AK |
8996 | case update_general_migration_checkpoint: { |
8997 | struct intel_dev *id; | |
8998 | struct imsm_update_general_migration_checkpoint *u = | |
8999 | (void *)update->buf; | |
9000 | ||
1ade5cc1 | 9001 | dprintf("called for update_general_migration_checkpoint\n"); |
0ec5d470 AK |
9002 | |
9003 | /* find device under general migration */ | |
9004 | for (id = super->devlist ; id; id = id->next) { | |
9005 | if (is_gen_migration(id->dev)) { | |
9006 | id->dev->vol.curr_migr_unit = | |
9007 | __cpu_to_le32(u->curr_migr_unit); | |
9008 | super->updates_pending++; | |
9009 | } | |
9010 | } | |
9011 | break; | |
9012 | } | |
bb025c2f KW |
9013 | case update_takeover: { |
9014 | struct imsm_update_takeover *u = (void *)update->buf; | |
1a2487c2 KW |
9015 | if (apply_takeover_update(u, super, &update->space_list)) { |
9016 | imsm_update_version_info(super); | |
bb025c2f | 9017 | super->updates_pending++; |
1a2487c2 | 9018 | } |
bb025c2f KW |
9019 | break; |
9020 | } | |
9021 | ||
78b10e66 | 9022 | case update_reshape_container_disks: { |
d195167d | 9023 | struct imsm_update_reshape *u = (void *)update->buf; |
2e5dc010 N |
9024 | if (apply_reshape_container_disks_update( |
9025 | u, super, &update->space_list)) | |
9026 | super->updates_pending++; | |
78b10e66 N |
9027 | break; |
9028 | } | |
48c5303a | 9029 | case update_reshape_migration: { |
a29911da PC |
9030 | struct imsm_update_reshape_migration *u = (void *)update->buf; |
9031 | if (apply_reshape_migration_update( | |
9032 | u, super, &update->space_list)) | |
9033 | super->updates_pending++; | |
48c5303a PC |
9034 | break; |
9035 | } | |
f3871fdc AK |
9036 | case update_size_change: { |
9037 | struct imsm_update_size_change *u = (void *)update->buf; | |
9038 | if (apply_size_change_update(u, super)) | |
9039 | super->updates_pending++; | |
9040 | break; | |
9041 | } | |
e8319a19 | 9042 | case update_activate_spare: { |
1011e834 | 9043 | struct imsm_update_activate_spare *u = (void *) update->buf; |
061d7da3 LO |
9044 | if (apply_update_activate_spare(u, super, st->arrays)) |
9045 | super->updates_pending++; | |
8273f55e DW |
9046 | break; |
9047 | } | |
9048 | case update_create_array: { | |
9049 | /* someone wants to create a new array, we need to be aware of | |
9050 | * a few races/collisions: | |
9051 | * 1/ 'Create' called by two separate instances of mdadm | |
9052 | * 2/ 'Create' versus 'activate_spare': mdadm has chosen | |
9053 | * devices that have since been assimilated via | |
9054 | * activate_spare. | |
9055 | * In the event this update can not be carried out mdadm will | |
9056 | * (FIX ME) notice that its update did not take hold. | |
9057 | */ | |
9058 | struct imsm_update_create_array *u = (void *) update->buf; | |
ba2de7ba | 9059 | struct intel_dev *dv; |
8273f55e DW |
9060 | struct imsm_dev *dev; |
9061 | struct imsm_map *map, *new_map; | |
9062 | unsigned long long start, end; | |
9063 | unsigned long long new_start, new_end; | |
9064 | int i; | |
54c2c1ea DW |
9065 | struct disk_info *inf; |
9066 | struct dl *dl; | |
8273f55e DW |
9067 | |
9068 | /* handle racing creates: first come first serve */ | |
9069 | if (u->dev_idx < mpb->num_raid_devs) { | |
1ade5cc1 | 9070 | dprintf("subarray %d already defined\n", u->dev_idx); |
ba2de7ba | 9071 | goto create_error; |
8273f55e DW |
9072 | } |
9073 | ||
9074 | /* check update is next in sequence */ | |
9075 | if (u->dev_idx != mpb->num_raid_devs) { | |
1ade5cc1 N |
9076 | dprintf("can not create array %d expected index %d\n", |
9077 | u->dev_idx, mpb->num_raid_devs); | |
ba2de7ba | 9078 | goto create_error; |
8273f55e DW |
9079 | } |
9080 | ||
238c0a71 | 9081 | new_map = get_imsm_map(&u->dev, MAP_0); |
5551b113 CA |
9082 | new_start = pba_of_lba0(new_map); |
9083 | new_end = new_start + blocks_per_member(new_map); | |
54c2c1ea | 9084 | inf = get_disk_info(u); |
8273f55e DW |
9085 | |
9086 | /* handle activate_spare versus create race: | |
9087 | * check to make sure that overlapping arrays do not include | |
9088 | * overalpping disks | |
9089 | */ | |
9090 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
949c47a0 | 9091 | dev = get_imsm_dev(super, i); |
238c0a71 | 9092 | map = get_imsm_map(dev, MAP_0); |
5551b113 CA |
9093 | start = pba_of_lba0(map); |
9094 | end = start + blocks_per_member(map); | |
8273f55e DW |
9095 | if ((new_start >= start && new_start <= end) || |
9096 | (start >= new_start && start <= new_end)) | |
54c2c1ea DW |
9097 | /* overlap */; |
9098 | else | |
9099 | continue; | |
9100 | ||
9101 | if (disks_overlap(super, i, u)) { | |
1ade5cc1 | 9102 | dprintf("arrays overlap\n"); |
ba2de7ba | 9103 | goto create_error; |
8273f55e DW |
9104 | } |
9105 | } | |
8273f55e | 9106 | |
949c47a0 DW |
9107 | /* check that prepare update was successful */ |
9108 | if (!update->space) { | |
1ade5cc1 | 9109 | dprintf("prepare update failed\n"); |
ba2de7ba | 9110 | goto create_error; |
949c47a0 DW |
9111 | } |
9112 | ||
54c2c1ea DW |
9113 | /* check that all disks are still active before committing |
9114 | * changes. FIXME: could we instead handle this by creating a | |
9115 | * degraded array? That's probably not what the user expects, | |
9116 | * so better to drop this update on the floor. | |
9117 | */ | |
9118 | for (i = 0; i < new_map->num_members; i++) { | |
9119 | dl = serial_to_dl(inf[i].serial, super); | |
9120 | if (!dl) { | |
1ade5cc1 | 9121 | dprintf("disk disappeared\n"); |
ba2de7ba | 9122 | goto create_error; |
54c2c1ea | 9123 | } |
949c47a0 DW |
9124 | } |
9125 | ||
8273f55e | 9126 | super->updates_pending++; |
54c2c1ea DW |
9127 | |
9128 | /* convert spares to members and fixup ord_tbl */ | |
9129 | for (i = 0; i < new_map->num_members; i++) { | |
9130 | dl = serial_to_dl(inf[i].serial, super); | |
9131 | if (dl->index == -1) { | |
9132 | dl->index = mpb->num_disks; | |
9133 | mpb->num_disks++; | |
9134 | dl->disk.status |= CONFIGURED_DISK; | |
9135 | dl->disk.status &= ~SPARE_DISK; | |
9136 | } | |
9137 | set_imsm_ord_tbl_ent(new_map, i, dl->index); | |
9138 | } | |
9139 | ||
ba2de7ba DW |
9140 | dv = update->space; |
9141 | dev = dv->dev; | |
949c47a0 DW |
9142 | update->space = NULL; |
9143 | imsm_copy_dev(dev, &u->dev); | |
ba2de7ba DW |
9144 | dv->index = u->dev_idx; |
9145 | dv->next = super->devlist; | |
9146 | super->devlist = dv; | |
8273f55e | 9147 | mpb->num_raid_devs++; |
8273f55e | 9148 | |
4d1313e9 | 9149 | imsm_update_version_info(super); |
8273f55e | 9150 | break; |
ba2de7ba DW |
9151 | create_error: |
9152 | /* mdmon knows how to release update->space, but not | |
9153 | * ((struct intel_dev *) update->space)->dev | |
9154 | */ | |
9155 | if (update->space) { | |
9156 | dv = update->space; | |
9157 | free(dv->dev); | |
9158 | } | |
8273f55e | 9159 | break; |
e8319a19 | 9160 | } |
33414a01 DW |
9161 | case update_kill_array: { |
9162 | struct imsm_update_kill_array *u = (void *) update->buf; | |
9163 | int victim = u->dev_idx; | |
9164 | struct active_array *a; | |
9165 | struct intel_dev **dp; | |
9166 | struct imsm_dev *dev; | |
9167 | ||
9168 | /* sanity check that we are not affecting the uuid of | |
9169 | * active arrays, or deleting an active array | |
9170 | * | |
9171 | * FIXME when immutable ids are available, but note that | |
9172 | * we'll also need to fixup the invalidated/active | |
9173 | * subarray indexes in mdstat | |
9174 | */ | |
9175 | for (a = st->arrays; a; a = a->next) | |
9176 | if (a->info.container_member >= victim) | |
9177 | break; | |
9178 | /* by definition if mdmon is running at least one array | |
9179 | * is active in the container, so checking | |
9180 | * mpb->num_raid_devs is just extra paranoia | |
9181 | */ | |
9182 | dev = get_imsm_dev(super, victim); | |
9183 | if (a || !dev || mpb->num_raid_devs == 1) { | |
9184 | dprintf("failed to delete subarray-%d\n", victim); | |
9185 | break; | |
9186 | } | |
9187 | ||
9188 | for (dp = &super->devlist; *dp;) | |
f21e18ca | 9189 | if ((*dp)->index == (unsigned)super->current_vol) { |
33414a01 DW |
9190 | *dp = (*dp)->next; |
9191 | } else { | |
f21e18ca | 9192 | if ((*dp)->index > (unsigned)victim) |
33414a01 DW |
9193 | (*dp)->index--; |
9194 | dp = &(*dp)->next; | |
9195 | } | |
9196 | mpb->num_raid_devs--; | |
9197 | super->updates_pending++; | |
9198 | break; | |
9199 | } | |
aa534678 DW |
9200 | case update_rename_array: { |
9201 | struct imsm_update_rename_array *u = (void *) update->buf; | |
9202 | char name[MAX_RAID_SERIAL_LEN+1]; | |
9203 | int target = u->dev_idx; | |
9204 | struct active_array *a; | |
9205 | struct imsm_dev *dev; | |
9206 | ||
9207 | /* sanity check that we are not affecting the uuid of | |
9208 | * an active array | |
9209 | */ | |
9210 | snprintf(name, MAX_RAID_SERIAL_LEN, "%s", (char *) u->name); | |
9211 | name[MAX_RAID_SERIAL_LEN] = '\0'; | |
9212 | for (a = st->arrays; a; a = a->next) | |
9213 | if (a->info.container_member == target) | |
9214 | break; | |
9215 | dev = get_imsm_dev(super, u->dev_idx); | |
9216 | if (a || !dev || !check_name(super, name, 1)) { | |
9217 | dprintf("failed to rename subarray-%d\n", target); | |
9218 | break; | |
9219 | } | |
9220 | ||
cdbe98cd | 9221 | snprintf((char *) dev->volume, MAX_RAID_SERIAL_LEN, "%s", name); |
aa534678 DW |
9222 | super->updates_pending++; |
9223 | break; | |
9224 | } | |
1a64be56 | 9225 | case update_add_remove_disk: { |
43dad3d6 | 9226 | /* we may be able to repair some arrays if disks are |
095b8088 | 9227 | * being added, check the status of add_remove_disk |
1a64be56 LM |
9228 | * if discs has been added. |
9229 | */ | |
9230 | if (add_remove_disk_update(super)) { | |
43dad3d6 | 9231 | struct active_array *a; |
072b727f DW |
9232 | |
9233 | super->updates_pending++; | |
1a64be56 | 9234 | for (a = st->arrays; a; a = a->next) |
43dad3d6 DW |
9235 | a->check_degraded = 1; |
9236 | } | |
43dad3d6 | 9237 | break; |
e8319a19 | 9238 | } |
bbab0940 TM |
9239 | case update_prealloc_badblocks_mem: |
9240 | break; | |
1a64be56 | 9241 | default: |
7a862a02 | 9242 | pr_err("error: unsuported process update type:(type: %d)\n", type); |
1a64be56 | 9243 | } |
e8319a19 | 9244 | } |
88758e9d | 9245 | |
bc0b9d34 PC |
9246 | static struct mdinfo *get_spares_for_grow(struct supertype *st); |
9247 | ||
5fe6f031 N |
9248 | static int imsm_prepare_update(struct supertype *st, |
9249 | struct metadata_update *update) | |
8273f55e | 9250 | { |
949c47a0 | 9251 | /** |
4d7b1503 DW |
9252 | * Allocate space to hold new disk entries, raid-device entries or a new |
9253 | * mpb if necessary. The manager synchronously waits for updates to | |
9254 | * complete in the monitor, so new mpb buffers allocated here can be | |
9255 | * integrated by the monitor thread without worrying about live pointers | |
9256 | * in the manager thread. | |
8273f55e | 9257 | */ |
095b8088 | 9258 | enum imsm_update_type type; |
4d7b1503 | 9259 | struct intel_super *super = st->sb; |
f36a9ecd | 9260 | unsigned int sector_size = super->sector_size; |
4d7b1503 DW |
9261 | struct imsm_super *mpb = super->anchor; |
9262 | size_t buf_len; | |
9263 | size_t len = 0; | |
949c47a0 | 9264 | |
095b8088 N |
9265 | if (update->len < (int)sizeof(type)) |
9266 | return 0; | |
9267 | ||
9268 | type = *(enum imsm_update_type *) update->buf; | |
9269 | ||
949c47a0 | 9270 | switch (type) { |
0ec5d470 | 9271 | case update_general_migration_checkpoint: |
095b8088 N |
9272 | if (update->len < (int)sizeof(struct imsm_update_general_migration_checkpoint)) |
9273 | return 0; | |
1ade5cc1 | 9274 | dprintf("called for update_general_migration_checkpoint\n"); |
0ec5d470 | 9275 | break; |
abedf5fc KW |
9276 | case update_takeover: { |
9277 | struct imsm_update_takeover *u = (void *)update->buf; | |
095b8088 N |
9278 | if (update->len < (int)sizeof(*u)) |
9279 | return 0; | |
abedf5fc KW |
9280 | if (u->direction == R0_TO_R10) { |
9281 | void **tail = (void **)&update->space_list; | |
9282 | struct imsm_dev *dev = get_imsm_dev(super, u->subarray); | |
238c0a71 | 9283 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
abedf5fc KW |
9284 | int num_members = map->num_members; |
9285 | void *space; | |
9286 | int size, i; | |
abedf5fc KW |
9287 | /* allocate memory for added disks */ |
9288 | for (i = 0; i < num_members; i++) { | |
9289 | size = sizeof(struct dl); | |
503975b9 | 9290 | space = xmalloc(size); |
abedf5fc KW |
9291 | *tail = space; |
9292 | tail = space; | |
9293 | *tail = NULL; | |
9294 | } | |
9295 | /* allocate memory for new device */ | |
9296 | size = sizeof_imsm_dev(super->devlist->dev, 0) + | |
9297 | (num_members * sizeof(__u32)); | |
503975b9 N |
9298 | space = xmalloc(size); |
9299 | *tail = space; | |
9300 | tail = space; | |
9301 | *tail = NULL; | |
9302 | len = disks_to_mpb_size(num_members * 2); | |
abedf5fc KW |
9303 | } |
9304 | ||
9305 | break; | |
9306 | } | |
78b10e66 | 9307 | case update_reshape_container_disks: { |
d195167d AK |
9308 | /* Every raid device in the container is about to |
9309 | * gain some more devices, and we will enter a | |
9310 | * reconfiguration. | |
9311 | * So each 'imsm_map' will be bigger, and the imsm_vol | |
9312 | * will now hold 2 of them. | |
9313 | * Thus we need new 'struct imsm_dev' allocations sized | |
9314 | * as sizeof_imsm_dev but with more devices in both maps. | |
9315 | */ | |
9316 | struct imsm_update_reshape *u = (void *)update->buf; | |
9317 | struct intel_dev *dl; | |
9318 | void **space_tail = (void**)&update->space_list; | |
9319 | ||
095b8088 N |
9320 | if (update->len < (int)sizeof(*u)) |
9321 | return 0; | |
9322 | ||
1ade5cc1 | 9323 | dprintf("for update_reshape\n"); |
d195167d AK |
9324 | |
9325 | for (dl = super->devlist; dl; dl = dl->next) { | |
9326 | int size = sizeof_imsm_dev(dl->dev, 1); | |
9327 | void *s; | |
d677e0b8 AK |
9328 | if (u->new_raid_disks > u->old_raid_disks) |
9329 | size += sizeof(__u32)*2* | |
9330 | (u->new_raid_disks - u->old_raid_disks); | |
503975b9 | 9331 | s = xmalloc(size); |
d195167d AK |
9332 | *space_tail = s; |
9333 | space_tail = s; | |
9334 | *space_tail = NULL; | |
9335 | } | |
9336 | ||
9337 | len = disks_to_mpb_size(u->new_raid_disks); | |
9338 | dprintf("New anchor length is %llu\n", (unsigned long long)len); | |
78b10e66 N |
9339 | break; |
9340 | } | |
48c5303a | 9341 | case update_reshape_migration: { |
bc0b9d34 PC |
9342 | /* for migration level 0->5 we need to add disks |
9343 | * so the same as for container operation we will copy | |
9344 | * device to the bigger location. | |
9345 | * in memory prepared device and new disk area are prepared | |
9346 | * for usage in process update | |
9347 | */ | |
9348 | struct imsm_update_reshape_migration *u = (void *)update->buf; | |
9349 | struct intel_dev *id; | |
9350 | void **space_tail = (void **)&update->space_list; | |
9351 | int size; | |
9352 | void *s; | |
9353 | int current_level = -1; | |
9354 | ||
095b8088 N |
9355 | if (update->len < (int)sizeof(*u)) |
9356 | return 0; | |
9357 | ||
1ade5cc1 | 9358 | dprintf("for update_reshape\n"); |
bc0b9d34 PC |
9359 | |
9360 | /* add space for bigger array in update | |
9361 | */ | |
9362 | for (id = super->devlist; id; id = id->next) { | |
9363 | if (id->index == (unsigned)u->subdev) { | |
9364 | size = sizeof_imsm_dev(id->dev, 1); | |
9365 | if (u->new_raid_disks > u->old_raid_disks) | |
9366 | size += sizeof(__u32)*2* | |
9367 | (u->new_raid_disks - u->old_raid_disks); | |
503975b9 | 9368 | s = xmalloc(size); |
bc0b9d34 PC |
9369 | *space_tail = s; |
9370 | space_tail = s; | |
9371 | *space_tail = NULL; | |
9372 | break; | |
9373 | } | |
9374 | } | |
9375 | if (update->space_list == NULL) | |
9376 | break; | |
9377 | ||
9378 | /* add space for disk in update | |
9379 | */ | |
9380 | size = sizeof(struct dl); | |
503975b9 | 9381 | s = xmalloc(size); |
bc0b9d34 PC |
9382 | *space_tail = s; |
9383 | space_tail = s; | |
9384 | *space_tail = NULL; | |
9385 | ||
9386 | /* add spare device to update | |
9387 | */ | |
9388 | for (id = super->devlist ; id; id = id->next) | |
9389 | if (id->index == (unsigned)u->subdev) { | |
9390 | struct imsm_dev *dev; | |
9391 | struct imsm_map *map; | |
9392 | ||
9393 | dev = get_imsm_dev(super, u->subdev); | |
238c0a71 | 9394 | map = get_imsm_map(dev, MAP_0); |
bc0b9d34 PC |
9395 | current_level = map->raid_level; |
9396 | break; | |
9397 | } | |
089f9d79 | 9398 | if (u->new_level == 5 && u->new_level != current_level) { |
bc0b9d34 PC |
9399 | struct mdinfo *spares; |
9400 | ||
9401 | spares = get_spares_for_grow(st); | |
9402 | if (spares) { | |
9403 | struct dl *dl; | |
9404 | struct mdinfo *dev; | |
9405 | ||
9406 | dev = spares->devs; | |
9407 | if (dev) { | |
9408 | u->new_disks[0] = | |
9409 | makedev(dev->disk.major, | |
9410 | dev->disk.minor); | |
9411 | dl = get_disk_super(super, | |
9412 | dev->disk.major, | |
9413 | dev->disk.minor); | |
9414 | dl->index = u->old_raid_disks; | |
9415 | dev = dev->next; | |
9416 | } | |
9417 | sysfs_free(spares); | |
9418 | } | |
9419 | } | |
9420 | len = disks_to_mpb_size(u->new_raid_disks); | |
9421 | dprintf("New anchor length is %llu\n", (unsigned long long)len); | |
48c5303a PC |
9422 | break; |
9423 | } | |
f3871fdc | 9424 | case update_size_change: { |
095b8088 N |
9425 | if (update->len < (int)sizeof(struct imsm_update_size_change)) |
9426 | return 0; | |
9427 | break; | |
9428 | } | |
9429 | case update_activate_spare: { | |
9430 | if (update->len < (int)sizeof(struct imsm_update_activate_spare)) | |
9431 | return 0; | |
f3871fdc AK |
9432 | break; |
9433 | } | |
949c47a0 DW |
9434 | case update_create_array: { |
9435 | struct imsm_update_create_array *u = (void *) update->buf; | |
ba2de7ba | 9436 | struct intel_dev *dv; |
54c2c1ea | 9437 | struct imsm_dev *dev = &u->dev; |
238c0a71 | 9438 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
54c2c1ea DW |
9439 | struct dl *dl; |
9440 | struct disk_info *inf; | |
9441 | int i; | |
9442 | int activate = 0; | |
949c47a0 | 9443 | |
095b8088 N |
9444 | if (update->len < (int)sizeof(*u)) |
9445 | return 0; | |
9446 | ||
54c2c1ea DW |
9447 | inf = get_disk_info(u); |
9448 | len = sizeof_imsm_dev(dev, 1); | |
ba2de7ba | 9449 | /* allocate a new super->devlist entry */ |
503975b9 N |
9450 | dv = xmalloc(sizeof(*dv)); |
9451 | dv->dev = xmalloc(len); | |
9452 | update->space = dv; | |
949c47a0 | 9453 | |
54c2c1ea DW |
9454 | /* count how many spares will be converted to members */ |
9455 | for (i = 0; i < map->num_members; i++) { | |
9456 | dl = serial_to_dl(inf[i].serial, super); | |
9457 | if (!dl) { | |
9458 | /* hmm maybe it failed?, nothing we can do about | |
9459 | * it here | |
9460 | */ | |
9461 | continue; | |
9462 | } | |
9463 | if (count_memberships(dl, super) == 0) | |
9464 | activate++; | |
9465 | } | |
9466 | len += activate * sizeof(struct imsm_disk); | |
949c47a0 | 9467 | break; |
095b8088 N |
9468 | } |
9469 | case update_kill_array: { | |
9470 | if (update->len < (int)sizeof(struct imsm_update_kill_array)) | |
9471 | return 0; | |
949c47a0 DW |
9472 | break; |
9473 | } | |
095b8088 N |
9474 | case update_rename_array: { |
9475 | if (update->len < (int)sizeof(struct imsm_update_rename_array)) | |
9476 | return 0; | |
9477 | break; | |
9478 | } | |
9479 | case update_add_remove_disk: | |
9480 | /* no update->len needed */ | |
9481 | break; | |
bbab0940 TM |
9482 | case update_prealloc_badblocks_mem: |
9483 | super->extra_space += sizeof(struct bbm_log) - | |
9484 | get_imsm_bbm_log_size(super->bbm_log); | |
9485 | break; | |
095b8088 N |
9486 | default: |
9487 | return 0; | |
949c47a0 | 9488 | } |
8273f55e | 9489 | |
4d7b1503 DW |
9490 | /* check if we need a larger metadata buffer */ |
9491 | if (super->next_buf) | |
9492 | buf_len = super->next_len; | |
9493 | else | |
9494 | buf_len = super->len; | |
9495 | ||
bbab0940 | 9496 | if (__le32_to_cpu(mpb->mpb_size) + super->extra_space + len > buf_len) { |
4d7b1503 DW |
9497 | /* ok we need a larger buf than what is currently allocated |
9498 | * if this allocation fails process_update will notice that | |
9499 | * ->next_len is set and ->next_buf is NULL | |
9500 | */ | |
bbab0940 TM |
9501 | buf_len = ROUND_UP(__le32_to_cpu(mpb->mpb_size) + |
9502 | super->extra_space + len, sector_size); | |
4d7b1503 DW |
9503 | if (super->next_buf) |
9504 | free(super->next_buf); | |
9505 | ||
9506 | super->next_len = buf_len; | |
f36a9ecd | 9507 | if (posix_memalign(&super->next_buf, sector_size, buf_len) == 0) |
1f45a8ad DW |
9508 | memset(super->next_buf, 0, buf_len); |
9509 | else | |
4d7b1503 DW |
9510 | super->next_buf = NULL; |
9511 | } | |
5fe6f031 | 9512 | return 1; |
8273f55e DW |
9513 | } |
9514 | ||
ae6aad82 | 9515 | /* must be called while manager is quiesced */ |
f21e18ca | 9516 | static void imsm_delete(struct intel_super *super, struct dl **dlp, unsigned index) |
ae6aad82 DW |
9517 | { |
9518 | struct imsm_super *mpb = super->anchor; | |
ae6aad82 DW |
9519 | struct dl *iter; |
9520 | struct imsm_dev *dev; | |
9521 | struct imsm_map *map; | |
24565c9a DW |
9522 | int i, j, num_members; |
9523 | __u32 ord; | |
ae6aad82 | 9524 | |
1ade5cc1 | 9525 | dprintf("deleting device[%d] from imsm_super\n", index); |
ae6aad82 DW |
9526 | |
9527 | /* shift all indexes down one */ | |
9528 | for (iter = super->disks; iter; iter = iter->next) | |
f21e18ca | 9529 | if (iter->index > (int)index) |
ae6aad82 | 9530 | iter->index--; |
47ee5a45 | 9531 | for (iter = super->missing; iter; iter = iter->next) |
f21e18ca | 9532 | if (iter->index > (int)index) |
47ee5a45 | 9533 | iter->index--; |
ae6aad82 DW |
9534 | |
9535 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
9536 | dev = get_imsm_dev(super, i); | |
238c0a71 | 9537 | map = get_imsm_map(dev, MAP_0); |
24565c9a DW |
9538 | num_members = map->num_members; |
9539 | for (j = 0; j < num_members; j++) { | |
9540 | /* update ord entries being careful not to propagate | |
9541 | * ord-flags to the first map | |
9542 | */ | |
238c0a71 | 9543 | ord = get_imsm_ord_tbl_ent(dev, j, MAP_X); |
ae6aad82 | 9544 | |
24565c9a DW |
9545 | if (ord_to_idx(ord) <= index) |
9546 | continue; | |
ae6aad82 | 9547 | |
238c0a71 | 9548 | map = get_imsm_map(dev, MAP_0); |
24565c9a | 9549 | set_imsm_ord_tbl_ent(map, j, ord_to_idx(ord - 1)); |
238c0a71 | 9550 | map = get_imsm_map(dev, MAP_1); |
24565c9a DW |
9551 | if (map) |
9552 | set_imsm_ord_tbl_ent(map, j, ord - 1); | |
ae6aad82 DW |
9553 | } |
9554 | } | |
9555 | ||
9556 | mpb->num_disks--; | |
9557 | super->updates_pending++; | |
24565c9a DW |
9558 | if (*dlp) { |
9559 | struct dl *dl = *dlp; | |
9560 | ||
9561 | *dlp = (*dlp)->next; | |
9562 | __free_imsm_disk(dl); | |
9563 | } | |
ae6aad82 | 9564 | } |
9e2d750d | 9565 | #endif /* MDASSEMBLE */ |
9a717282 AK |
9566 | |
9567 | static void close_targets(int *targets, int new_disks) | |
9568 | { | |
9569 | int i; | |
9570 | ||
9571 | if (!targets) | |
9572 | return; | |
9573 | ||
9574 | for (i = 0; i < new_disks; i++) { | |
9575 | if (targets[i] >= 0) { | |
9576 | close(targets[i]); | |
9577 | targets[i] = -1; | |
9578 | } | |
9579 | } | |
9580 | } | |
9581 | ||
9582 | static int imsm_get_allowed_degradation(int level, int raid_disks, | |
9583 | struct intel_super *super, | |
9584 | struct imsm_dev *dev) | |
9585 | { | |
9586 | switch (level) { | |
bf5cf7c7 | 9587 | case 1: |
9a717282 AK |
9588 | case 10:{ |
9589 | int ret_val = 0; | |
9590 | struct imsm_map *map; | |
9591 | int i; | |
9592 | ||
9593 | ret_val = raid_disks/2; | |
9594 | /* check map if all disks pairs not failed | |
9595 | * in both maps | |
9596 | */ | |
238c0a71 | 9597 | map = get_imsm_map(dev, MAP_0); |
9a717282 AK |
9598 | for (i = 0; i < ret_val; i++) { |
9599 | int degradation = 0; | |
9600 | if (get_imsm_disk(super, i) == NULL) | |
9601 | degradation++; | |
9602 | if (get_imsm_disk(super, i + 1) == NULL) | |
9603 | degradation++; | |
9604 | if (degradation == 2) | |
9605 | return 0; | |
9606 | } | |
238c0a71 | 9607 | map = get_imsm_map(dev, MAP_1); |
9a717282 AK |
9608 | /* if there is no second map |
9609 | * result can be returned | |
9610 | */ | |
9611 | if (map == NULL) | |
9612 | return ret_val; | |
9613 | /* check degradation in second map | |
9614 | */ | |
9615 | for (i = 0; i < ret_val; i++) { | |
9616 | int degradation = 0; | |
9617 | if (get_imsm_disk(super, i) == NULL) | |
9618 | degradation++; | |
9619 | if (get_imsm_disk(super, i + 1) == NULL) | |
9620 | degradation++; | |
9621 | if (degradation == 2) | |
9622 | return 0; | |
9623 | } | |
9624 | return ret_val; | |
9625 | } | |
9626 | case 5: | |
9627 | return 1; | |
9628 | case 6: | |
9629 | return 2; | |
9630 | default: | |
9631 | return 0; | |
9632 | } | |
9633 | } | |
9634 | ||
687629c2 AK |
9635 | /******************************************************************************* |
9636 | * Function: open_backup_targets | |
9637 | * Description: Function opens file descriptors for all devices given in | |
9638 | * info->devs | |
9639 | * Parameters: | |
9640 | * info : general array info | |
9641 | * raid_disks : number of disks | |
9642 | * raid_fds : table of device's file descriptors | |
9a717282 AK |
9643 | * super : intel super for raid10 degradation check |
9644 | * dev : intel device for raid10 degradation check | |
687629c2 AK |
9645 | * Returns: |
9646 | * 0 : success | |
9647 | * -1 : fail | |
9648 | ******************************************************************************/ | |
9a717282 AK |
9649 | int open_backup_targets(struct mdinfo *info, int raid_disks, int *raid_fds, |
9650 | struct intel_super *super, struct imsm_dev *dev) | |
687629c2 AK |
9651 | { |
9652 | struct mdinfo *sd; | |
f627f5ad | 9653 | int i; |
9a717282 | 9654 | int opened = 0; |
f627f5ad AK |
9655 | |
9656 | for (i = 0; i < raid_disks; i++) | |
9657 | raid_fds[i] = -1; | |
687629c2 AK |
9658 | |
9659 | for (sd = info->devs ; sd ; sd = sd->next) { | |
9660 | char *dn; | |
9661 | ||
9662 | if (sd->disk.state & (1<<MD_DISK_FAULTY)) { | |
9663 | dprintf("disk is faulty!!\n"); | |
9664 | continue; | |
9665 | } | |
9666 | ||
089f9d79 | 9667 | if (sd->disk.raid_disk >= raid_disks || sd->disk.raid_disk < 0) |
687629c2 AK |
9668 | continue; |
9669 | ||
9670 | dn = map_dev(sd->disk.major, | |
9671 | sd->disk.minor, 1); | |
9672 | raid_fds[sd->disk.raid_disk] = dev_open(dn, O_RDWR); | |
9673 | if (raid_fds[sd->disk.raid_disk] < 0) { | |
e12b3daa | 9674 | pr_err("cannot open component\n"); |
9a717282 | 9675 | continue; |
687629c2 | 9676 | } |
9a717282 AK |
9677 | opened++; |
9678 | } | |
9679 | /* check if maximum array degradation level is not exceeded | |
9680 | */ | |
9681 | if ((raid_disks - opened) > | |
089f9d79 JS |
9682 | imsm_get_allowed_degradation(info->new_level, raid_disks, |
9683 | super, dev)) { | |
e12b3daa | 9684 | pr_err("Not enough disks can be opened.\n"); |
9a717282 AK |
9685 | close_targets(raid_fds, raid_disks); |
9686 | return -2; | |
687629c2 AK |
9687 | } |
9688 | return 0; | |
9689 | } | |
9690 | ||
d31ad643 PB |
9691 | /******************************************************************************* |
9692 | * Function: validate_container_imsm | |
9693 | * Description: This routine validates container after assemble, | |
9694 | * eg. if devices in container are under the same controller. | |
9695 | * | |
9696 | * Parameters: | |
9697 | * info : linked list with info about devices used in array | |
9698 | * Returns: | |
9699 | * 1 : HBA mismatch | |
9700 | * 0 : Success | |
9701 | ******************************************************************************/ | |
9702 | int validate_container_imsm(struct mdinfo *info) | |
9703 | { | |
6b781d33 AP |
9704 | if (check_env("IMSM_NO_PLATFORM")) |
9705 | return 0; | |
d31ad643 | 9706 | |
6b781d33 AP |
9707 | struct sys_dev *idev; |
9708 | struct sys_dev *hba = NULL; | |
9709 | struct sys_dev *intel_devices = find_intel_devices(); | |
9710 | char *dev_path = devt_to_devpath(makedev(info->disk.major, | |
9711 | info->disk.minor)); | |
9712 | ||
9713 | for (idev = intel_devices; idev; idev = idev->next) { | |
9714 | if (dev_path && strstr(dev_path, idev->path)) { | |
9715 | hba = idev; | |
9716 | break; | |
d31ad643 | 9717 | } |
6b781d33 AP |
9718 | } |
9719 | if (dev_path) | |
d31ad643 PB |
9720 | free(dev_path); |
9721 | ||
6b781d33 AP |
9722 | if (!hba) { |
9723 | pr_err("WARNING - Cannot detect HBA for device %s!\n", | |
9724 | devid2kname(makedev(info->disk.major, info->disk.minor))); | |
9725 | return 1; | |
9726 | } | |
9727 | ||
9728 | const struct imsm_orom *orom = get_orom_by_device_id(hba->dev_id); | |
9729 | struct mdinfo *dev; | |
9730 | ||
9731 | for (dev = info->next; dev; dev = dev->next) { | |
9732 | dev_path = devt_to_devpath(makedev(dev->disk.major, dev->disk.minor)); | |
9733 | ||
9734 | struct sys_dev *hba2 = NULL; | |
9735 | for (idev = intel_devices; idev; idev = idev->next) { | |
9736 | if (dev_path && strstr(dev_path, idev->path)) { | |
9737 | hba2 = idev; | |
9738 | break; | |
d31ad643 PB |
9739 | } |
9740 | } | |
6b781d33 AP |
9741 | if (dev_path) |
9742 | free(dev_path); | |
9743 | ||
9744 | const struct imsm_orom *orom2 = hba2 == NULL ? NULL : | |
9745 | get_orom_by_device_id(hba2->dev_id); | |
9746 | ||
9747 | if (hba2 && hba->type != hba2->type) { | |
9748 | pr_err("WARNING - HBAs of devices do not match %s != %s\n", | |
9749 | get_sys_dev_type(hba->type), get_sys_dev_type(hba2->type)); | |
9750 | return 1; | |
9751 | } | |
9752 | ||
07cb1e57 | 9753 | if (orom != orom2) { |
6b781d33 AP |
9754 | pr_err("WARNING - IMSM container assembled with disks under different HBAs!\n" |
9755 | " This operation is not supported and can lead to data loss.\n"); | |
9756 | return 1; | |
9757 | } | |
9758 | ||
9759 | if (!orom) { | |
9760 | pr_err("WARNING - IMSM container assembled with disks under HBAs without IMSM platform support!\n" | |
9761 | " This operation is not supported and can lead to data loss.\n"); | |
9762 | return 1; | |
9763 | } | |
d31ad643 | 9764 | } |
6b781d33 | 9765 | |
d31ad643 PB |
9766 | return 0; |
9767 | } | |
9e2d750d | 9768 | #ifndef MDASSEMBLE |
6f50473f TM |
9769 | /******************************************************************************* |
9770 | * Function: imsm_record_badblock | |
9771 | * Description: This routine stores new bad block record in BBM log | |
9772 | * | |
9773 | * Parameters: | |
9774 | * a : array containing a bad block | |
9775 | * slot : disk number containing a bad block | |
9776 | * sector : bad block sector | |
9777 | * length : bad block sectors range | |
9778 | * Returns: | |
9779 | * 1 : Success | |
9780 | * 0 : Error | |
9781 | ******************************************************************************/ | |
9782 | static int imsm_record_badblock(struct active_array *a, int slot, | |
9783 | unsigned long long sector, int length) | |
9784 | { | |
9785 | struct intel_super *super = a->container->sb; | |
9786 | int ord; | |
9787 | int ret; | |
9788 | ||
9789 | ord = imsm_disk_slot_to_ord(a, slot); | |
9790 | if (ord < 0) | |
9791 | return 0; | |
9792 | ||
9793 | ret = record_new_badblock(super->bbm_log, ord_to_idx(ord), sector, | |
9794 | length); | |
9795 | if (ret) | |
9796 | super->updates_pending++; | |
9797 | ||
9798 | return ret; | |
9799 | } | |
687629c2 AK |
9800 | /******************************************************************************* |
9801 | * Function: init_migr_record_imsm | |
9802 | * Description: Function inits imsm migration record | |
9803 | * Parameters: | |
9804 | * super : imsm internal array info | |
9805 | * dev : device under migration | |
9806 | * info : general array info to find the smallest device | |
9807 | * Returns: | |
9808 | * none | |
9809 | ******************************************************************************/ | |
9810 | void init_migr_record_imsm(struct supertype *st, struct imsm_dev *dev, | |
9811 | struct mdinfo *info) | |
9812 | { | |
9813 | struct intel_super *super = st->sb; | |
9814 | struct migr_record *migr_rec = super->migr_rec; | |
9815 | int new_data_disks; | |
9816 | unsigned long long dsize, dev_sectors; | |
9817 | long long unsigned min_dev_sectors = -1LLU; | |
9818 | struct mdinfo *sd; | |
9819 | char nm[30]; | |
9820 | int fd; | |
238c0a71 AK |
9821 | struct imsm_map *map_dest = get_imsm_map(dev, MAP_0); |
9822 | struct imsm_map *map_src = get_imsm_map(dev, MAP_1); | |
687629c2 | 9823 | unsigned long long num_migr_units; |
3ef4403c | 9824 | unsigned long long array_blocks; |
687629c2 AK |
9825 | |
9826 | memset(migr_rec, 0, sizeof(struct migr_record)); | |
9827 | migr_rec->family_num = __cpu_to_le32(super->anchor->family_num); | |
9828 | ||
9829 | /* only ascending reshape supported now */ | |
9830 | migr_rec->ascending_migr = __cpu_to_le32(1); | |
9831 | ||
9832 | migr_rec->dest_depth_per_unit = GEN_MIGR_AREA_SIZE / | |
9833 | max(map_dest->blocks_per_strip, map_src->blocks_per_strip); | |
e1742195 AK |
9834 | migr_rec->dest_depth_per_unit *= |
9835 | max(map_dest->blocks_per_strip, map_src->blocks_per_strip); | |
238c0a71 | 9836 | new_data_disks = imsm_num_data_members(dev, MAP_0); |
687629c2 AK |
9837 | migr_rec->blocks_per_unit = |
9838 | __cpu_to_le32(migr_rec->dest_depth_per_unit * new_data_disks); | |
9839 | migr_rec->dest_depth_per_unit = | |
9840 | __cpu_to_le32(migr_rec->dest_depth_per_unit); | |
3ef4403c | 9841 | array_blocks = info->component_size * new_data_disks; |
687629c2 AK |
9842 | num_migr_units = |
9843 | array_blocks / __le32_to_cpu(migr_rec->blocks_per_unit); | |
9844 | ||
9845 | if (array_blocks % __le32_to_cpu(migr_rec->blocks_per_unit)) | |
9846 | num_migr_units++; | |
9847 | migr_rec->num_migr_units = __cpu_to_le32(num_migr_units); | |
9848 | ||
9849 | migr_rec->post_migr_vol_cap = dev->size_low; | |
9850 | migr_rec->post_migr_vol_cap_hi = dev->size_high; | |
9851 | ||
687629c2 AK |
9852 | /* Find the smallest dev */ |
9853 | for (sd = info->devs ; sd ; sd = sd->next) { | |
9854 | sprintf(nm, "%d:%d", sd->disk.major, sd->disk.minor); | |
9855 | fd = dev_open(nm, O_RDONLY); | |
9856 | if (fd < 0) | |
9857 | continue; | |
9858 | get_dev_size(fd, NULL, &dsize); | |
9859 | dev_sectors = dsize / 512; | |
9860 | if (dev_sectors < min_dev_sectors) | |
9861 | min_dev_sectors = dev_sectors; | |
9862 | close(fd); | |
9863 | } | |
9864 | migr_rec->ckpt_area_pba = __cpu_to_le32(min_dev_sectors - | |
9865 | RAID_DISK_RESERVED_BLOCKS_IMSM_HI); | |
9866 | ||
9867 | write_imsm_migr_rec(st); | |
9868 | ||
9869 | return; | |
9870 | } | |
9871 | ||
9872 | /******************************************************************************* | |
9873 | * Function: save_backup_imsm | |
9874 | * Description: Function saves critical data stripes to Migration Copy Area | |
9875 | * and updates the current migration unit status. | |
9876 | * Use restore_stripes() to form a destination stripe, | |
9877 | * and to write it to the Copy Area. | |
9878 | * Parameters: | |
9879 | * st : supertype information | |
aea93171 | 9880 | * dev : imsm device that backup is saved for |
687629c2 AK |
9881 | * info : general array info |
9882 | * buf : input buffer | |
687629c2 AK |
9883 | * length : length of data to backup (blocks_per_unit) |
9884 | * Returns: | |
9885 | * 0 : success | |
9886 | *, -1 : fail | |
9887 | ******************************************************************************/ | |
9888 | int save_backup_imsm(struct supertype *st, | |
9889 | struct imsm_dev *dev, | |
9890 | struct mdinfo *info, | |
9891 | void *buf, | |
687629c2 AK |
9892 | int length) |
9893 | { | |
9894 | int rv = -1; | |
9895 | struct intel_super *super = st->sb; | |
594dc1b8 JS |
9896 | unsigned long long *target_offsets; |
9897 | int *targets; | |
687629c2 | 9898 | int i; |
238c0a71 | 9899 | struct imsm_map *map_dest = get_imsm_map(dev, MAP_0); |
687629c2 | 9900 | int new_disks = map_dest->num_members; |
ab724b98 AK |
9901 | int dest_layout = 0; |
9902 | int dest_chunk; | |
d1877f69 | 9903 | unsigned long long start; |
238c0a71 | 9904 | int data_disks = imsm_num_data_members(dev, MAP_0); |
687629c2 | 9905 | |
503975b9 | 9906 | targets = xmalloc(new_disks * sizeof(int)); |
687629c2 | 9907 | |
7e45b550 AK |
9908 | for (i = 0; i < new_disks; i++) |
9909 | targets[i] = -1; | |
9910 | ||
503975b9 | 9911 | target_offsets = xcalloc(new_disks, sizeof(unsigned long long)); |
687629c2 | 9912 | |
d1877f69 | 9913 | start = info->reshape_progress * 512; |
687629c2 | 9914 | for (i = 0; i < new_disks; i++) { |
687629c2 AK |
9915 | target_offsets[i] = (unsigned long long) |
9916 | __le32_to_cpu(super->migr_rec->ckpt_area_pba) * 512; | |
d1877f69 AK |
9917 | /* move back copy area adderss, it will be moved forward |
9918 | * in restore_stripes() using start input variable | |
9919 | */ | |
9920 | target_offsets[i] -= start/data_disks; | |
687629c2 AK |
9921 | } |
9922 | ||
9a717282 AK |
9923 | if (open_backup_targets(info, new_disks, targets, |
9924 | super, dev)) | |
687629c2 AK |
9925 | goto abort; |
9926 | ||
68eb8bc6 | 9927 | dest_layout = imsm_level_to_layout(map_dest->raid_level); |
ab724b98 AK |
9928 | dest_chunk = __le16_to_cpu(map_dest->blocks_per_strip) * 512; |
9929 | ||
687629c2 AK |
9930 | if (restore_stripes(targets, /* list of dest devices */ |
9931 | target_offsets, /* migration record offsets */ | |
9932 | new_disks, | |
ab724b98 AK |
9933 | dest_chunk, |
9934 | map_dest->raid_level, | |
9935 | dest_layout, | |
9936 | -1, /* source backup file descriptor */ | |
9937 | 0, /* input buf offset | |
9938 | * always 0 buf is already offseted */ | |
d1877f69 | 9939 | start, |
687629c2 AK |
9940 | length, |
9941 | buf) != 0) { | |
e7b84f9d | 9942 | pr_err("Error restoring stripes\n"); |
687629c2 AK |
9943 | goto abort; |
9944 | } | |
9945 | ||
9946 | rv = 0; | |
9947 | ||
9948 | abort: | |
9949 | if (targets) { | |
9a717282 | 9950 | close_targets(targets, new_disks); |
687629c2 AK |
9951 | free(targets); |
9952 | } | |
9953 | free(target_offsets); | |
9954 | ||
9955 | return rv; | |
9956 | } | |
9957 | ||
9958 | /******************************************************************************* | |
9959 | * Function: save_checkpoint_imsm | |
9960 | * Description: Function called for current unit status update | |
9961 | * in the migration record. It writes it to disk. | |
9962 | * Parameters: | |
9963 | * super : imsm internal array info | |
9964 | * info : general array info | |
9965 | * Returns: | |
9966 | * 0: success | |
9967 | * 1: failure | |
0228d92c AK |
9968 | * 2: failure, means no valid migration record |
9969 | * / no general migration in progress / | |
687629c2 AK |
9970 | ******************************************************************************/ |
9971 | int save_checkpoint_imsm(struct supertype *st, struct mdinfo *info, int state) | |
9972 | { | |
9973 | struct intel_super *super = st->sb; | |
f8b72ef5 AK |
9974 | unsigned long long blocks_per_unit; |
9975 | unsigned long long curr_migr_unit; | |
9976 | ||
2e062e82 | 9977 | if (load_imsm_migr_rec(super, info) != 0) { |
7a862a02 | 9978 | dprintf("imsm: ERROR: Cannot read migration record for checkpoint save.\n"); |
2e062e82 AK |
9979 | return 1; |
9980 | } | |
9981 | ||
f8b72ef5 AK |
9982 | blocks_per_unit = __le32_to_cpu(super->migr_rec->blocks_per_unit); |
9983 | if (blocks_per_unit == 0) { | |
0228d92c AK |
9984 | dprintf("imsm: no migration in progress.\n"); |
9985 | return 2; | |
687629c2 | 9986 | } |
f8b72ef5 AK |
9987 | curr_migr_unit = info->reshape_progress / blocks_per_unit; |
9988 | /* check if array is alligned to copy area | |
9989 | * if it is not alligned, add one to current migration unit value | |
9990 | * this can happend on array reshape finish only | |
9991 | */ | |
9992 | if (info->reshape_progress % blocks_per_unit) | |
9993 | curr_migr_unit++; | |
687629c2 AK |
9994 | |
9995 | super->migr_rec->curr_migr_unit = | |
f8b72ef5 | 9996 | __cpu_to_le32(curr_migr_unit); |
687629c2 AK |
9997 | super->migr_rec->rec_status = __cpu_to_le32(state); |
9998 | super->migr_rec->dest_1st_member_lba = | |
f8b72ef5 AK |
9999 | __cpu_to_le32(curr_migr_unit * |
10000 | __le32_to_cpu(super->migr_rec->dest_depth_per_unit)); | |
687629c2 | 10001 | if (write_imsm_migr_rec(st) < 0) { |
7a862a02 | 10002 | dprintf("imsm: Cannot write migration record outside backup area\n"); |
687629c2 AK |
10003 | return 1; |
10004 | } | |
10005 | ||
10006 | return 0; | |
10007 | } | |
10008 | ||
276d77db AK |
10009 | /******************************************************************************* |
10010 | * Function: recover_backup_imsm | |
10011 | * Description: Function recovers critical data from the Migration Copy Area | |
10012 | * while assembling an array. | |
10013 | * Parameters: | |
10014 | * super : imsm internal array info | |
10015 | * info : general array info | |
10016 | * Returns: | |
10017 | * 0 : success (or there is no data to recover) | |
10018 | * 1 : fail | |
10019 | ******************************************************************************/ | |
10020 | int recover_backup_imsm(struct supertype *st, struct mdinfo *info) | |
10021 | { | |
10022 | struct intel_super *super = st->sb; | |
10023 | struct migr_record *migr_rec = super->migr_rec; | |
594dc1b8 | 10024 | struct imsm_map *map_dest; |
276d77db AK |
10025 | struct intel_dev *id = NULL; |
10026 | unsigned long long read_offset; | |
10027 | unsigned long long write_offset; | |
10028 | unsigned unit_len; | |
10029 | int *targets = NULL; | |
10030 | int new_disks, i, err; | |
10031 | char *buf = NULL; | |
10032 | int retval = 1; | |
f36a9ecd | 10033 | unsigned int sector_size = super->sector_size; |
276d77db AK |
10034 | unsigned long curr_migr_unit = __le32_to_cpu(migr_rec->curr_migr_unit); |
10035 | unsigned long num_migr_units = __le32_to_cpu(migr_rec->num_migr_units); | |
276d77db | 10036 | char buffer[20]; |
6c3560c0 | 10037 | int skipped_disks = 0; |
276d77db AK |
10038 | |
10039 | err = sysfs_get_str(info, NULL, "array_state", (char *)buffer, 20); | |
10040 | if (err < 1) | |
10041 | return 1; | |
10042 | ||
10043 | /* recover data only during assemblation */ | |
10044 | if (strncmp(buffer, "inactive", 8) != 0) | |
10045 | return 0; | |
10046 | /* no data to recover */ | |
10047 | if (__le32_to_cpu(migr_rec->rec_status) == UNIT_SRC_NORMAL) | |
10048 | return 0; | |
10049 | if (curr_migr_unit >= num_migr_units) | |
10050 | return 1; | |
10051 | ||
10052 | /* find device during reshape */ | |
10053 | for (id = super->devlist; id; id = id->next) | |
10054 | if (is_gen_migration(id->dev)) | |
10055 | break; | |
10056 | if (id == NULL) | |
10057 | return 1; | |
10058 | ||
238c0a71 | 10059 | map_dest = get_imsm_map(id->dev, MAP_0); |
276d77db AK |
10060 | new_disks = map_dest->num_members; |
10061 | ||
10062 | read_offset = (unsigned long long) | |
10063 | __le32_to_cpu(migr_rec->ckpt_area_pba) * 512; | |
10064 | ||
10065 | write_offset = ((unsigned long long) | |
10066 | __le32_to_cpu(migr_rec->dest_1st_member_lba) + | |
5551b113 | 10067 | pba_of_lba0(map_dest)) * 512; |
276d77db AK |
10068 | |
10069 | unit_len = __le32_to_cpu(migr_rec->dest_depth_per_unit) * 512; | |
f36a9ecd | 10070 | if (posix_memalign((void **)&buf, sector_size, unit_len) != 0) |
276d77db | 10071 | goto abort; |
503975b9 | 10072 | targets = xcalloc(new_disks, sizeof(int)); |
276d77db | 10073 | |
9a717282 | 10074 | if (open_backup_targets(info, new_disks, targets, super, id->dev)) { |
e7b84f9d | 10075 | pr_err("Cannot open some devices belonging to array.\n"); |
f627f5ad AK |
10076 | goto abort; |
10077 | } | |
276d77db AK |
10078 | |
10079 | for (i = 0; i < new_disks; i++) { | |
6c3560c0 AK |
10080 | if (targets[i] < 0) { |
10081 | skipped_disks++; | |
10082 | continue; | |
10083 | } | |
276d77db | 10084 | if (lseek64(targets[i], read_offset, SEEK_SET) < 0) { |
e7b84f9d N |
10085 | pr_err("Cannot seek to block: %s\n", |
10086 | strerror(errno)); | |
137debce AK |
10087 | skipped_disks++; |
10088 | continue; | |
276d77db | 10089 | } |
9ec11d1a | 10090 | if ((unsigned)read(targets[i], buf, unit_len) != unit_len) { |
e7b84f9d N |
10091 | pr_err("Cannot read copy area block: %s\n", |
10092 | strerror(errno)); | |
137debce AK |
10093 | skipped_disks++; |
10094 | continue; | |
276d77db AK |
10095 | } |
10096 | if (lseek64(targets[i], write_offset, SEEK_SET) < 0) { | |
e7b84f9d N |
10097 | pr_err("Cannot seek to block: %s\n", |
10098 | strerror(errno)); | |
137debce AK |
10099 | skipped_disks++; |
10100 | continue; | |
276d77db | 10101 | } |
9ec11d1a | 10102 | if ((unsigned)write(targets[i], buf, unit_len) != unit_len) { |
e7b84f9d N |
10103 | pr_err("Cannot restore block: %s\n", |
10104 | strerror(errno)); | |
137debce AK |
10105 | skipped_disks++; |
10106 | continue; | |
276d77db AK |
10107 | } |
10108 | } | |
10109 | ||
137debce AK |
10110 | if (skipped_disks > imsm_get_allowed_degradation(info->new_level, |
10111 | new_disks, | |
10112 | super, | |
10113 | id->dev)) { | |
7a862a02 | 10114 | pr_err("Cannot restore data from backup. Too many failed disks\n"); |
6c3560c0 AK |
10115 | goto abort; |
10116 | } | |
10117 | ||
befb629b AK |
10118 | if (save_checkpoint_imsm(st, info, UNIT_SRC_NORMAL)) { |
10119 | /* ignore error == 2, this can mean end of reshape here | |
10120 | */ | |
7a862a02 | 10121 | dprintf("imsm: Cannot write checkpoint to migration record (UNIT_SRC_NORMAL) during restart\n"); |
befb629b | 10122 | } else |
276d77db | 10123 | retval = 0; |
276d77db AK |
10124 | |
10125 | abort: | |
10126 | if (targets) { | |
10127 | for (i = 0; i < new_disks; i++) | |
10128 | if (targets[i]) | |
10129 | close(targets[i]); | |
10130 | free(targets); | |
10131 | } | |
10132 | free(buf); | |
10133 | return retval; | |
10134 | } | |
10135 | ||
2cda7640 ML |
10136 | static char disk_by_path[] = "/dev/disk/by-path/"; |
10137 | ||
10138 | static const char *imsm_get_disk_controller_domain(const char *path) | |
10139 | { | |
2cda7640 | 10140 | char disk_path[PATH_MAX]; |
96234762 LM |
10141 | char *drv=NULL; |
10142 | struct stat st; | |
2cda7640 | 10143 | |
6d8d290a | 10144 | strcpy(disk_path, disk_by_path); |
96234762 LM |
10145 | strncat(disk_path, path, PATH_MAX - strlen(disk_path) - 1); |
10146 | if (stat(disk_path, &st) == 0) { | |
10147 | struct sys_dev* hba; | |
594dc1b8 | 10148 | char *path; |
96234762 LM |
10149 | |
10150 | path = devt_to_devpath(st.st_rdev); | |
10151 | if (path == NULL) | |
10152 | return "unknown"; | |
10153 | hba = find_disk_attached_hba(-1, path); | |
10154 | if (hba && hba->type == SYS_DEV_SAS) | |
10155 | drv = "isci"; | |
10156 | else if (hba && hba->type == SYS_DEV_SATA) | |
10157 | drv = "ahci"; | |
1011e834 | 10158 | else |
96234762 LM |
10159 | drv = "unknown"; |
10160 | dprintf("path: %s hba: %s attached: %s\n", | |
10161 | path, (hba) ? hba->path : "NULL", drv); | |
10162 | free(path); | |
2cda7640 | 10163 | } |
96234762 | 10164 | return drv; |
2cda7640 ML |
10165 | } |
10166 | ||
4dd2df09 | 10167 | static char *imsm_find_array_devnm_by_subdev(int subdev, char *container) |
78b10e66 | 10168 | { |
4dd2df09 | 10169 | static char devnm[32]; |
78b10e66 N |
10170 | char subdev_name[20]; |
10171 | struct mdstat_ent *mdstat; | |
10172 | ||
10173 | sprintf(subdev_name, "%d", subdev); | |
10174 | mdstat = mdstat_by_subdev(subdev_name, container); | |
10175 | if (!mdstat) | |
4dd2df09 | 10176 | return NULL; |
78b10e66 | 10177 | |
4dd2df09 | 10178 | strcpy(devnm, mdstat->devnm); |
78b10e66 | 10179 | free_mdstat(mdstat); |
4dd2df09 | 10180 | return devnm; |
78b10e66 N |
10181 | } |
10182 | ||
10183 | static int imsm_reshape_is_allowed_on_container(struct supertype *st, | |
10184 | struct geo_params *geo, | |
fbf3d202 AK |
10185 | int *old_raid_disks, |
10186 | int direction) | |
78b10e66 | 10187 | { |
694575e7 KW |
10188 | /* currently we only support increasing the number of devices |
10189 | * for a container. This increases the number of device for each | |
10190 | * member array. They must all be RAID0 or RAID5. | |
10191 | */ | |
78b10e66 N |
10192 | int ret_val = 0; |
10193 | struct mdinfo *info, *member; | |
10194 | int devices_that_can_grow = 0; | |
10195 | ||
7a862a02 | 10196 | dprintf("imsm: imsm_reshape_is_allowed_on_container(ENTER): st->devnm = (%s)\n", st->devnm); |
78b10e66 | 10197 | |
d04f65f4 | 10198 | if (geo->size > 0 || |
78b10e66 N |
10199 | geo->level != UnSet || |
10200 | geo->layout != UnSet || | |
10201 | geo->chunksize != 0 || | |
10202 | geo->raid_disks == UnSet) { | |
7a862a02 | 10203 | dprintf("imsm: Container operation is allowed for raid disks number change only.\n"); |
78b10e66 N |
10204 | return ret_val; |
10205 | } | |
10206 | ||
fbf3d202 | 10207 | if (direction == ROLLBACK_METADATA_CHANGES) { |
7a862a02 | 10208 | dprintf("imsm: Metadata changes rollback is not supported for container operation.\n"); |
fbf3d202 AK |
10209 | return ret_val; |
10210 | } | |
10211 | ||
78b10e66 N |
10212 | info = container_content_imsm(st, NULL); |
10213 | for (member = info; member; member = member->next) { | |
4dd2df09 | 10214 | char *result; |
78b10e66 N |
10215 | |
10216 | dprintf("imsm: checking device_num: %i\n", | |
10217 | member->container_member); | |
10218 | ||
d7d205bd | 10219 | if (geo->raid_disks <= member->array.raid_disks) { |
78b10e66 N |
10220 | /* we work on container for Online Capacity Expansion |
10221 | * only so raid_disks has to grow | |
10222 | */ | |
7a862a02 | 10223 | dprintf("imsm: for container operation raid disks increase is required\n"); |
78b10e66 N |
10224 | break; |
10225 | } | |
10226 | ||
089f9d79 | 10227 | if (info->array.level != 0 && info->array.level != 5) { |
78b10e66 N |
10228 | /* we cannot use this container with other raid level |
10229 | */ | |
7a862a02 | 10230 | dprintf("imsm: for container operation wrong raid level (%i) detected\n", |
78b10e66 N |
10231 | info->array.level); |
10232 | break; | |
10233 | } else { | |
10234 | /* check for platform support | |
10235 | * for this raid level configuration | |
10236 | */ | |
10237 | struct intel_super *super = st->sb; | |
10238 | if (!is_raid_level_supported(super->orom, | |
10239 | member->array.level, | |
10240 | geo->raid_disks)) { | |
7a862a02 | 10241 | dprintf("platform does not support raid%d with %d disk%s\n", |
78b10e66 N |
10242 | info->array.level, |
10243 | geo->raid_disks, | |
10244 | geo->raid_disks > 1 ? "s" : ""); | |
10245 | break; | |
10246 | } | |
2a4a08e7 AK |
10247 | /* check if component size is aligned to chunk size |
10248 | */ | |
10249 | if (info->component_size % | |
10250 | (info->array.chunk_size/512)) { | |
7a862a02 | 10251 | dprintf("Component size is not aligned to chunk size\n"); |
2a4a08e7 AK |
10252 | break; |
10253 | } | |
78b10e66 N |
10254 | } |
10255 | ||
10256 | if (*old_raid_disks && | |
10257 | info->array.raid_disks != *old_raid_disks) | |
10258 | break; | |
10259 | *old_raid_disks = info->array.raid_disks; | |
10260 | ||
10261 | /* All raid5 and raid0 volumes in container | |
10262 | * have to be ready for Online Capacity Expansion | |
10263 | * so they need to be assembled. We have already | |
10264 | * checked that no recovery etc is happening. | |
10265 | */ | |
4dd2df09 N |
10266 | result = imsm_find_array_devnm_by_subdev(member->container_member, |
10267 | st->container_devnm); | |
10268 | if (result == NULL) { | |
78b10e66 N |
10269 | dprintf("imsm: cannot find array\n"); |
10270 | break; | |
10271 | } | |
10272 | devices_that_can_grow++; | |
10273 | } | |
10274 | sysfs_free(info); | |
10275 | if (!member && devices_that_can_grow) | |
10276 | ret_val = 1; | |
10277 | ||
10278 | if (ret_val) | |
1ade5cc1 | 10279 | dprintf("Container operation allowed\n"); |
78b10e66 | 10280 | else |
1ade5cc1 | 10281 | dprintf("Error: %i\n", ret_val); |
78b10e66 N |
10282 | |
10283 | return ret_val; | |
10284 | } | |
10285 | ||
10286 | /* Function: get_spares_for_grow | |
10287 | * Description: Allocates memory and creates list of spare devices | |
1011e834 | 10288 | * avaliable in container. Checks if spare drive size is acceptable. |
78b10e66 N |
10289 | * Parameters: Pointer to the supertype structure |
10290 | * Returns: Pointer to the list of spare devices (mdinfo structure) on success, | |
1011e834 | 10291 | * NULL if fail |
78b10e66 N |
10292 | */ |
10293 | static struct mdinfo *get_spares_for_grow(struct supertype *st) | |
10294 | { | |
78b10e66 | 10295 | unsigned long long min_size = min_acceptable_spare_size_imsm(st); |
326727d9 | 10296 | return container_choose_spares(st, min_size, NULL, NULL, NULL, 0); |
78b10e66 N |
10297 | } |
10298 | ||
10299 | /****************************************************************************** | |
10300 | * function: imsm_create_metadata_update_for_reshape | |
10301 | * Function creates update for whole IMSM container. | |
10302 | * | |
10303 | ******************************************************************************/ | |
10304 | static int imsm_create_metadata_update_for_reshape( | |
10305 | struct supertype *st, | |
10306 | struct geo_params *geo, | |
10307 | int old_raid_disks, | |
10308 | struct imsm_update_reshape **updatep) | |
10309 | { | |
10310 | struct intel_super *super = st->sb; | |
10311 | struct imsm_super *mpb = super->anchor; | |
594dc1b8 JS |
10312 | int update_memory_size; |
10313 | struct imsm_update_reshape *u; | |
10314 | struct mdinfo *spares; | |
78b10e66 | 10315 | int i; |
594dc1b8 | 10316 | int delta_disks; |
bbd24d86 | 10317 | struct mdinfo *dev; |
78b10e66 | 10318 | |
1ade5cc1 | 10319 | dprintf("(enter) raid_disks = %i\n", geo->raid_disks); |
78b10e66 N |
10320 | |
10321 | delta_disks = geo->raid_disks - old_raid_disks; | |
10322 | ||
10323 | /* size of all update data without anchor */ | |
10324 | update_memory_size = sizeof(struct imsm_update_reshape); | |
10325 | ||
10326 | /* now add space for spare disks that we need to add. */ | |
10327 | update_memory_size += sizeof(u->new_disks[0]) * (delta_disks - 1); | |
10328 | ||
503975b9 | 10329 | u = xcalloc(1, update_memory_size); |
78b10e66 N |
10330 | u->type = update_reshape_container_disks; |
10331 | u->old_raid_disks = old_raid_disks; | |
10332 | u->new_raid_disks = geo->raid_disks; | |
10333 | ||
10334 | /* now get spare disks list | |
10335 | */ | |
10336 | spares = get_spares_for_grow(st); | |
10337 | ||
10338 | if (spares == NULL | |
10339 | || delta_disks > spares->array.spare_disks) { | |
7a862a02 | 10340 | pr_err("imsm: ERROR: Cannot get spare devices for %s.\n", geo->dev_name); |
e4c72d1d | 10341 | i = -1; |
78b10e66 N |
10342 | goto abort; |
10343 | } | |
10344 | ||
10345 | /* we have got spares | |
10346 | * update disk list in imsm_disk list table in anchor | |
10347 | */ | |
10348 | dprintf("imsm: %i spares are available.\n\n", | |
10349 | spares->array.spare_disks); | |
10350 | ||
bbd24d86 | 10351 | dev = spares->devs; |
78b10e66 | 10352 | for (i = 0; i < delta_disks; i++) { |
78b10e66 N |
10353 | struct dl *dl; |
10354 | ||
bbd24d86 AK |
10355 | if (dev == NULL) |
10356 | break; | |
78b10e66 N |
10357 | u->new_disks[i] = makedev(dev->disk.major, |
10358 | dev->disk.minor); | |
10359 | dl = get_disk_super(super, dev->disk.major, dev->disk.minor); | |
ee4beede AK |
10360 | dl->index = mpb->num_disks; |
10361 | mpb->num_disks++; | |
bbd24d86 | 10362 | dev = dev->next; |
78b10e66 | 10363 | } |
78b10e66 N |
10364 | |
10365 | abort: | |
10366 | /* free spares | |
10367 | */ | |
10368 | sysfs_free(spares); | |
10369 | ||
d677e0b8 | 10370 | dprintf("imsm: reshape update preparation :"); |
78b10e66 | 10371 | if (i == delta_disks) { |
1ade5cc1 | 10372 | dprintf_cont(" OK\n"); |
78b10e66 N |
10373 | *updatep = u; |
10374 | return update_memory_size; | |
10375 | } | |
10376 | free(u); | |
1ade5cc1 | 10377 | dprintf_cont(" Error\n"); |
78b10e66 N |
10378 | |
10379 | return 0; | |
10380 | } | |
10381 | ||
f3871fdc AK |
10382 | /****************************************************************************** |
10383 | * function: imsm_create_metadata_update_for_size_change() | |
10384 | * Creates update for IMSM array for array size change. | |
10385 | * | |
10386 | ******************************************************************************/ | |
10387 | static int imsm_create_metadata_update_for_size_change( | |
10388 | struct supertype *st, | |
10389 | struct geo_params *geo, | |
10390 | struct imsm_update_size_change **updatep) | |
10391 | { | |
10392 | struct intel_super *super = st->sb; | |
594dc1b8 JS |
10393 | int update_memory_size; |
10394 | struct imsm_update_size_change *u; | |
f3871fdc | 10395 | |
1ade5cc1 | 10396 | dprintf("(enter) New size = %llu\n", geo->size); |
f3871fdc AK |
10397 | |
10398 | /* size of all update data without anchor */ | |
10399 | update_memory_size = sizeof(struct imsm_update_size_change); | |
10400 | ||
503975b9 | 10401 | u = xcalloc(1, update_memory_size); |
f3871fdc AK |
10402 | u->type = update_size_change; |
10403 | u->subdev = super->current_vol; | |
10404 | u->new_size = geo->size; | |
10405 | ||
10406 | dprintf("imsm: reshape update preparation : OK\n"); | |
10407 | *updatep = u; | |
10408 | ||
10409 | return update_memory_size; | |
10410 | } | |
10411 | ||
48c5303a PC |
10412 | /****************************************************************************** |
10413 | * function: imsm_create_metadata_update_for_migration() | |
10414 | * Creates update for IMSM array. | |
10415 | * | |
10416 | ******************************************************************************/ | |
10417 | static int imsm_create_metadata_update_for_migration( | |
10418 | struct supertype *st, | |
10419 | struct geo_params *geo, | |
10420 | struct imsm_update_reshape_migration **updatep) | |
10421 | { | |
10422 | struct intel_super *super = st->sb; | |
594dc1b8 JS |
10423 | int update_memory_size; |
10424 | struct imsm_update_reshape_migration *u; | |
48c5303a PC |
10425 | struct imsm_dev *dev; |
10426 | int previous_level = -1; | |
10427 | ||
1ade5cc1 | 10428 | dprintf("(enter) New Level = %i\n", geo->level); |
48c5303a PC |
10429 | |
10430 | /* size of all update data without anchor */ | |
10431 | update_memory_size = sizeof(struct imsm_update_reshape_migration); | |
10432 | ||
503975b9 | 10433 | u = xcalloc(1, update_memory_size); |
48c5303a PC |
10434 | u->type = update_reshape_migration; |
10435 | u->subdev = super->current_vol; | |
10436 | u->new_level = geo->level; | |
10437 | u->new_layout = geo->layout; | |
10438 | u->new_raid_disks = u->old_raid_disks = geo->raid_disks; | |
10439 | u->new_disks[0] = -1; | |
4bba0439 | 10440 | u->new_chunksize = -1; |
48c5303a PC |
10441 | |
10442 | dev = get_imsm_dev(super, u->subdev); | |
10443 | if (dev) { | |
10444 | struct imsm_map *map; | |
10445 | ||
238c0a71 | 10446 | map = get_imsm_map(dev, MAP_0); |
4bba0439 PC |
10447 | if (map) { |
10448 | int current_chunk_size = | |
10449 | __le16_to_cpu(map->blocks_per_strip) / 2; | |
10450 | ||
10451 | if (geo->chunksize != current_chunk_size) { | |
10452 | u->new_chunksize = geo->chunksize / 1024; | |
7a862a02 | 10453 | dprintf("imsm: chunk size change from %i to %i\n", |
4bba0439 PC |
10454 | current_chunk_size, u->new_chunksize); |
10455 | } | |
48c5303a | 10456 | previous_level = map->raid_level; |
4bba0439 | 10457 | } |
48c5303a | 10458 | } |
089f9d79 | 10459 | if (geo->level == 5 && previous_level == 0) { |
48c5303a PC |
10460 | struct mdinfo *spares = NULL; |
10461 | ||
10462 | u->new_raid_disks++; | |
10463 | spares = get_spares_for_grow(st); | |
089f9d79 | 10464 | if (spares == NULL || spares->array.spare_disks < 1) { |
48c5303a PC |
10465 | free(u); |
10466 | sysfs_free(spares); | |
10467 | update_memory_size = 0; | |
7a862a02 | 10468 | dprintf("error: cannot get spare device for requested migration"); |
48c5303a PC |
10469 | return 0; |
10470 | } | |
10471 | sysfs_free(spares); | |
10472 | } | |
10473 | dprintf("imsm: reshape update preparation : OK\n"); | |
10474 | *updatep = u; | |
10475 | ||
10476 | return update_memory_size; | |
10477 | } | |
10478 | ||
8dd70bce AK |
10479 | static void imsm_update_metadata_locally(struct supertype *st, |
10480 | void *buf, int len) | |
10481 | { | |
10482 | struct metadata_update mu; | |
10483 | ||
10484 | mu.buf = buf; | |
10485 | mu.len = len; | |
10486 | mu.space = NULL; | |
10487 | mu.space_list = NULL; | |
10488 | mu.next = NULL; | |
5fe6f031 N |
10489 | if (imsm_prepare_update(st, &mu)) |
10490 | imsm_process_update(st, &mu); | |
8dd70bce AK |
10491 | |
10492 | while (mu.space_list) { | |
10493 | void **space = mu.space_list; | |
10494 | mu.space_list = *space; | |
10495 | free(space); | |
10496 | } | |
10497 | } | |
78b10e66 | 10498 | |
471bceb6 | 10499 | /*************************************************************************** |
694575e7 | 10500 | * Function: imsm_analyze_change |
471bceb6 | 10501 | * Description: Function analyze change for single volume |
1011e834 | 10502 | * and validate if transition is supported |
fbf3d202 AK |
10503 | * Parameters: Geometry parameters, supertype structure, |
10504 | * metadata change direction (apply/rollback) | |
694575e7 | 10505 | * Returns: Operation type code on success, -1 if fail |
471bceb6 KW |
10506 | ****************************************************************************/ |
10507 | enum imsm_reshape_type imsm_analyze_change(struct supertype *st, | |
fbf3d202 AK |
10508 | struct geo_params *geo, |
10509 | int direction) | |
694575e7 | 10510 | { |
471bceb6 KW |
10511 | struct mdinfo info; |
10512 | int change = -1; | |
10513 | int check_devs = 0; | |
c21e737b | 10514 | int chunk; |
67a2db32 AK |
10515 | /* number of added/removed disks in operation result */ |
10516 | int devNumChange = 0; | |
10517 | /* imsm compatible layout value for array geometry verification */ | |
10518 | int imsm_layout = -1; | |
7abc9871 AK |
10519 | int data_disks; |
10520 | struct imsm_dev *dev; | |
10521 | struct intel_super *super; | |
d04f65f4 | 10522 | unsigned long long current_size; |
65d38cca | 10523 | unsigned long long free_size; |
d04f65f4 | 10524 | unsigned long long max_size; |
65d38cca | 10525 | int rv; |
471bceb6 KW |
10526 | |
10527 | getinfo_super_imsm_volume(st, &info, NULL); | |
089f9d79 JS |
10528 | if (geo->level != info.array.level && geo->level >= 0 && |
10529 | geo->level != UnSet) { | |
471bceb6 KW |
10530 | switch (info.array.level) { |
10531 | case 0: | |
10532 | if (geo->level == 5) { | |
b5347799 | 10533 | change = CH_MIGRATION; |
e13ce846 | 10534 | if (geo->layout != ALGORITHM_LEFT_ASYMMETRIC) { |
7a862a02 | 10535 | pr_err("Error. Requested Layout not supported (left-asymmetric layout is supported only)!\n"); |
e13ce846 AK |
10536 | change = -1; |
10537 | goto analyse_change_exit; | |
10538 | } | |
67a2db32 | 10539 | imsm_layout = geo->layout; |
471bceb6 | 10540 | check_devs = 1; |
e91a3bad LM |
10541 | devNumChange = 1; /* parity disk added */ |
10542 | } else if (geo->level == 10) { | |
471bceb6 KW |
10543 | change = CH_TAKEOVER; |
10544 | check_devs = 1; | |
e91a3bad | 10545 | devNumChange = 2; /* two mirrors added */ |
67a2db32 | 10546 | imsm_layout = 0x102; /* imsm supported layout */ |
471bceb6 | 10547 | } |
dfe77a9e KW |
10548 | break; |
10549 | case 1: | |
471bceb6 KW |
10550 | case 10: |
10551 | if (geo->level == 0) { | |
10552 | change = CH_TAKEOVER; | |
10553 | check_devs = 1; | |
e91a3bad | 10554 | devNumChange = -(geo->raid_disks/2); |
67a2db32 | 10555 | imsm_layout = 0; /* imsm raid0 layout */ |
471bceb6 KW |
10556 | } |
10557 | break; | |
10558 | } | |
10559 | if (change == -1) { | |
7a862a02 | 10560 | pr_err("Error. Level Migration from %d to %d not supported!\n", |
e7b84f9d | 10561 | info.array.level, geo->level); |
471bceb6 KW |
10562 | goto analyse_change_exit; |
10563 | } | |
10564 | } else | |
10565 | geo->level = info.array.level; | |
10566 | ||
089f9d79 JS |
10567 | if (geo->layout != info.array.layout && |
10568 | (geo->layout != UnSet && geo->layout != -1)) { | |
b5347799 | 10569 | change = CH_MIGRATION; |
089f9d79 JS |
10570 | if (info.array.layout == 0 && info.array.level == 5 && |
10571 | geo->layout == 5) { | |
471bceb6 | 10572 | /* reshape 5 -> 4 */ |
089f9d79 JS |
10573 | } else if (info.array.layout == 5 && info.array.level == 5 && |
10574 | geo->layout == 0) { | |
471bceb6 KW |
10575 | /* reshape 4 -> 5 */ |
10576 | geo->layout = 0; | |
10577 | geo->level = 5; | |
10578 | } else { | |
7a862a02 | 10579 | pr_err("Error. Layout Migration from %d to %d not supported!\n", |
e7b84f9d | 10580 | info.array.layout, geo->layout); |
471bceb6 KW |
10581 | change = -1; |
10582 | goto analyse_change_exit; | |
10583 | } | |
67a2db32 | 10584 | } else { |
471bceb6 | 10585 | geo->layout = info.array.layout; |
67a2db32 AK |
10586 | if (imsm_layout == -1) |
10587 | imsm_layout = info.array.layout; | |
10588 | } | |
471bceb6 | 10589 | |
089f9d79 JS |
10590 | if (geo->chunksize > 0 && geo->chunksize != UnSet && |
10591 | geo->chunksize != info.array.chunk_size) { | |
2d2b0eb7 MD |
10592 | if (info.array.level == 10) { |
10593 | pr_err("Error. Chunk size change for RAID 10 is not supported.\n"); | |
10594 | change = -1; | |
10595 | goto analyse_change_exit; | |
10596 | } | |
b5347799 | 10597 | change = CH_MIGRATION; |
2d2b0eb7 | 10598 | } else { |
471bceb6 | 10599 | geo->chunksize = info.array.chunk_size; |
2d2b0eb7 | 10600 | } |
471bceb6 | 10601 | |
c21e737b | 10602 | chunk = geo->chunksize / 1024; |
7abc9871 AK |
10603 | |
10604 | super = st->sb; | |
10605 | dev = get_imsm_dev(super, super->current_vol); | |
10606 | data_disks = imsm_num_data_members(dev , MAP_0); | |
c41e00b2 | 10607 | /* compute current size per disk member |
7abc9871 | 10608 | */ |
c41e00b2 AK |
10609 | current_size = info.custom_array_size / data_disks; |
10610 | ||
089f9d79 | 10611 | if (geo->size > 0 && geo->size != MAX_SIZE) { |
c41e00b2 AK |
10612 | /* align component size |
10613 | */ | |
10614 | geo->size = imsm_component_size_aligment_check( | |
10615 | get_imsm_raid_level(dev->vol.map), | |
f36a9ecd | 10616 | chunk * 1024, super->sector_size, |
c41e00b2 | 10617 | geo->size * 2); |
65d0b4ce | 10618 | if (geo->size == 0) { |
7a862a02 | 10619 | pr_err("Error. Size expansion is supported only (current size is %llu, requested size /rounded/ is 0).\n", |
65d0b4ce LD |
10620 | current_size); |
10621 | goto analyse_change_exit; | |
10622 | } | |
c41e00b2 | 10623 | } |
7abc9871 | 10624 | |
089f9d79 | 10625 | if (current_size != geo->size && geo->size > 0) { |
7abc9871 | 10626 | if (change != -1) { |
7a862a02 | 10627 | pr_err("Error. Size change should be the only one at a time.\n"); |
7abc9871 AK |
10628 | change = -1; |
10629 | goto analyse_change_exit; | |
10630 | } | |
10631 | if ((super->current_vol + 1) != super->anchor->num_raid_devs) { | |
7a862a02 | 10632 | pr_err("Error. The last volume in container can be expanded only (%i/%s).\n", |
4dd2df09 | 10633 | super->current_vol, st->devnm); |
7abc9871 AK |
10634 | goto analyse_change_exit; |
10635 | } | |
65d38cca LD |
10636 | /* check the maximum available size |
10637 | */ | |
10638 | rv = imsm_get_free_size(st, dev->vol.map->num_members, | |
10639 | 0, chunk, &free_size); | |
10640 | if (rv == 0) | |
10641 | /* Cannot find maximum available space | |
10642 | */ | |
10643 | max_size = 0; | |
10644 | else { | |
10645 | max_size = free_size + current_size; | |
10646 | /* align component size | |
10647 | */ | |
10648 | max_size = imsm_component_size_aligment_check( | |
10649 | get_imsm_raid_level(dev->vol.map), | |
f36a9ecd | 10650 | chunk * 1024, super->sector_size, |
65d38cca LD |
10651 | max_size); |
10652 | } | |
d04f65f4 | 10653 | if (geo->size == MAX_SIZE) { |
b130333f AK |
10654 | /* requested size change to the maximum available size |
10655 | */ | |
65d38cca | 10656 | if (max_size == 0) { |
7a862a02 | 10657 | pr_err("Error. Cannot find maximum available space.\n"); |
b130333f AK |
10658 | change = -1; |
10659 | goto analyse_change_exit; | |
65d38cca LD |
10660 | } else |
10661 | geo->size = max_size; | |
c41e00b2 | 10662 | } |
b130333f | 10663 | |
681b7ae2 | 10664 | if (direction == ROLLBACK_METADATA_CHANGES) { |
fbf3d202 AK |
10665 | /* accept size for rollback only |
10666 | */ | |
10667 | } else { | |
10668 | /* round size due to metadata compatibility | |
10669 | */ | |
10670 | geo->size = (geo->size >> SECT_PER_MB_SHIFT) | |
10671 | << SECT_PER_MB_SHIFT; | |
10672 | dprintf("Prepare update for size change to %llu\n", | |
10673 | geo->size ); | |
10674 | if (current_size >= geo->size) { | |
7a862a02 | 10675 | pr_err("Error. Size expansion is supported only (current size is %llu, requested size /rounded/ is %llu).\n", |
e7b84f9d | 10676 | current_size, geo->size); |
fbf3d202 AK |
10677 | goto analyse_change_exit; |
10678 | } | |
65d38cca | 10679 | if (max_size && geo->size > max_size) { |
7a862a02 | 10680 | pr_err("Error. Requested size is larger than maximum available size (maximum available size is %llu, requested size /rounded/ is %llu).\n", |
e7b84f9d | 10681 | max_size, geo->size); |
65d38cca LD |
10682 | goto analyse_change_exit; |
10683 | } | |
7abc9871 AK |
10684 | } |
10685 | geo->size *= data_disks; | |
10686 | geo->raid_disks = dev->vol.map->num_members; | |
10687 | change = CH_ARRAY_SIZE; | |
10688 | } | |
471bceb6 KW |
10689 | if (!validate_geometry_imsm(st, |
10690 | geo->level, | |
67a2db32 | 10691 | imsm_layout, |
e91a3bad | 10692 | geo->raid_disks + devNumChange, |
c21e737b | 10693 | &chunk, |
af4348dd | 10694 | geo->size, INVALID_SECTORS, |
471bceb6 KW |
10695 | 0, 0, 1)) |
10696 | change = -1; | |
10697 | ||
10698 | if (check_devs) { | |
10699 | struct intel_super *super = st->sb; | |
10700 | struct imsm_super *mpb = super->anchor; | |
10701 | ||
10702 | if (mpb->num_raid_devs > 1) { | |
7a862a02 | 10703 | pr_err("Error. Cannot perform operation on %s- for this operation it MUST be single array in container\n", |
e7b84f9d | 10704 | geo->dev_name); |
471bceb6 KW |
10705 | change = -1; |
10706 | } | |
10707 | } | |
10708 | ||
10709 | analyse_change_exit: | |
089f9d79 JS |
10710 | if (direction == ROLLBACK_METADATA_CHANGES && |
10711 | (change == CH_MIGRATION || change == CH_TAKEOVER)) { | |
7a862a02 | 10712 | dprintf("imsm: Metadata changes rollback is not supported for migration and takeover operations.\n"); |
fbf3d202 AK |
10713 | change = -1; |
10714 | } | |
471bceb6 | 10715 | return change; |
694575e7 KW |
10716 | } |
10717 | ||
bb025c2f KW |
10718 | int imsm_takeover(struct supertype *st, struct geo_params *geo) |
10719 | { | |
10720 | struct intel_super *super = st->sb; | |
10721 | struct imsm_update_takeover *u; | |
10722 | ||
503975b9 | 10723 | u = xmalloc(sizeof(struct imsm_update_takeover)); |
bb025c2f KW |
10724 | |
10725 | u->type = update_takeover; | |
10726 | u->subarray = super->current_vol; | |
10727 | ||
10728 | /* 10->0 transition */ | |
10729 | if (geo->level == 0) | |
10730 | u->direction = R10_TO_R0; | |
10731 | ||
0529c688 KW |
10732 | /* 0->10 transition */ |
10733 | if (geo->level == 10) | |
10734 | u->direction = R0_TO_R10; | |
10735 | ||
bb025c2f KW |
10736 | /* update metadata locally */ |
10737 | imsm_update_metadata_locally(st, u, | |
10738 | sizeof(struct imsm_update_takeover)); | |
10739 | /* and possibly remotely */ | |
10740 | if (st->update_tail) | |
10741 | append_metadata_update(st, u, | |
10742 | sizeof(struct imsm_update_takeover)); | |
10743 | else | |
10744 | free(u); | |
10745 | ||
10746 | return 0; | |
10747 | } | |
10748 | ||
d04f65f4 N |
10749 | static int imsm_reshape_super(struct supertype *st, unsigned long long size, |
10750 | int level, | |
78b10e66 | 10751 | int layout, int chunksize, int raid_disks, |
41784c88 | 10752 | int delta_disks, char *backup, char *dev, |
016e00f5 | 10753 | int direction, int verbose) |
78b10e66 | 10754 | { |
78b10e66 N |
10755 | int ret_val = 1; |
10756 | struct geo_params geo; | |
10757 | ||
1ade5cc1 | 10758 | dprintf("(enter)\n"); |
78b10e66 | 10759 | |
71204a50 | 10760 | memset(&geo, 0, sizeof(struct geo_params)); |
78b10e66 N |
10761 | |
10762 | geo.dev_name = dev; | |
4dd2df09 | 10763 | strcpy(geo.devnm, st->devnm); |
78b10e66 N |
10764 | geo.size = size; |
10765 | geo.level = level; | |
10766 | geo.layout = layout; | |
10767 | geo.chunksize = chunksize; | |
10768 | geo.raid_disks = raid_disks; | |
41784c88 AK |
10769 | if (delta_disks != UnSet) |
10770 | geo.raid_disks += delta_disks; | |
78b10e66 | 10771 | |
1ade5cc1 N |
10772 | dprintf("for level : %i\n", geo.level); |
10773 | dprintf("for raid_disks : %i\n", geo.raid_disks); | |
78b10e66 N |
10774 | |
10775 | if (experimental() == 0) | |
10776 | return ret_val; | |
10777 | ||
4dd2df09 | 10778 | if (strcmp(st->container_devnm, st->devnm) == 0) { |
694575e7 KW |
10779 | /* On container level we can only increase number of devices. */ |
10780 | dprintf("imsm: info: Container operation\n"); | |
78b10e66 | 10781 | int old_raid_disks = 0; |
6dc0be30 | 10782 | |
78b10e66 | 10783 | if (imsm_reshape_is_allowed_on_container( |
fbf3d202 | 10784 | st, &geo, &old_raid_disks, direction)) { |
78b10e66 N |
10785 | struct imsm_update_reshape *u = NULL; |
10786 | int len; | |
10787 | ||
10788 | len = imsm_create_metadata_update_for_reshape( | |
10789 | st, &geo, old_raid_disks, &u); | |
10790 | ||
ed08d51c AK |
10791 | if (len <= 0) { |
10792 | dprintf("imsm: Cannot prepare update\n"); | |
10793 | goto exit_imsm_reshape_super; | |
10794 | } | |
10795 | ||
8dd70bce AK |
10796 | ret_val = 0; |
10797 | /* update metadata locally */ | |
10798 | imsm_update_metadata_locally(st, u, len); | |
10799 | /* and possibly remotely */ | |
10800 | if (st->update_tail) | |
10801 | append_metadata_update(st, u, len); | |
10802 | else | |
ed08d51c | 10803 | free(u); |
8dd70bce | 10804 | |
694575e7 | 10805 | } else { |
7a862a02 | 10806 | pr_err("(imsm) Operation is not allowed on this container\n"); |
694575e7 KW |
10807 | } |
10808 | } else { | |
10809 | /* On volume level we support following operations | |
471bceb6 KW |
10810 | * - takeover: raid10 -> raid0; raid0 -> raid10 |
10811 | * - chunk size migration | |
10812 | * - migration: raid5 -> raid0; raid0 -> raid5 | |
10813 | */ | |
10814 | struct intel_super *super = st->sb; | |
10815 | struct intel_dev *dev = super->devlist; | |
4dd2df09 | 10816 | int change; |
694575e7 | 10817 | dprintf("imsm: info: Volume operation\n"); |
471bceb6 KW |
10818 | /* find requested device */ |
10819 | while (dev) { | |
1011e834 | 10820 | char *devnm = |
4dd2df09 N |
10821 | imsm_find_array_devnm_by_subdev( |
10822 | dev->index, st->container_devnm); | |
10823 | if (devnm && strcmp(devnm, geo.devnm) == 0) | |
471bceb6 KW |
10824 | break; |
10825 | dev = dev->next; | |
10826 | } | |
10827 | if (dev == NULL) { | |
4dd2df09 N |
10828 | pr_err("Cannot find %s (%s) subarray\n", |
10829 | geo.dev_name, geo.devnm); | |
471bceb6 KW |
10830 | goto exit_imsm_reshape_super; |
10831 | } | |
10832 | super->current_vol = dev->index; | |
fbf3d202 | 10833 | change = imsm_analyze_change(st, &geo, direction); |
694575e7 | 10834 | switch (change) { |
471bceb6 | 10835 | case CH_TAKEOVER: |
bb025c2f | 10836 | ret_val = imsm_takeover(st, &geo); |
694575e7 | 10837 | break; |
48c5303a PC |
10838 | case CH_MIGRATION: { |
10839 | struct imsm_update_reshape_migration *u = NULL; | |
10840 | int len = | |
10841 | imsm_create_metadata_update_for_migration( | |
10842 | st, &geo, &u); | |
10843 | if (len < 1) { | |
7a862a02 | 10844 | dprintf("imsm: Cannot prepare update\n"); |
48c5303a PC |
10845 | break; |
10846 | } | |
471bceb6 | 10847 | ret_val = 0; |
48c5303a PC |
10848 | /* update metadata locally */ |
10849 | imsm_update_metadata_locally(st, u, len); | |
10850 | /* and possibly remotely */ | |
10851 | if (st->update_tail) | |
10852 | append_metadata_update(st, u, len); | |
10853 | else | |
10854 | free(u); | |
10855 | } | |
10856 | break; | |
7abc9871 | 10857 | case CH_ARRAY_SIZE: { |
f3871fdc AK |
10858 | struct imsm_update_size_change *u = NULL; |
10859 | int len = | |
10860 | imsm_create_metadata_update_for_size_change( | |
10861 | st, &geo, &u); | |
10862 | if (len < 1) { | |
7a862a02 | 10863 | dprintf("imsm: Cannot prepare update\n"); |
f3871fdc AK |
10864 | break; |
10865 | } | |
10866 | ret_val = 0; | |
10867 | /* update metadata locally */ | |
10868 | imsm_update_metadata_locally(st, u, len); | |
10869 | /* and possibly remotely */ | |
10870 | if (st->update_tail) | |
10871 | append_metadata_update(st, u, len); | |
10872 | else | |
10873 | free(u); | |
7abc9871 AK |
10874 | } |
10875 | break; | |
471bceb6 KW |
10876 | default: |
10877 | ret_val = 1; | |
694575e7 | 10878 | } |
694575e7 | 10879 | } |
78b10e66 | 10880 | |
ed08d51c | 10881 | exit_imsm_reshape_super: |
78b10e66 N |
10882 | dprintf("imsm: reshape_super Exit code = %i\n", ret_val); |
10883 | return ret_val; | |
10884 | } | |
2cda7640 | 10885 | |
0febb20c AO |
10886 | #define COMPLETED_OK 0 |
10887 | #define COMPLETED_NONE 1 | |
10888 | #define COMPLETED_DELAYED 2 | |
10889 | ||
10890 | static int read_completed(int fd, unsigned long long *val) | |
10891 | { | |
10892 | int ret; | |
10893 | char buf[50]; | |
10894 | ||
10895 | ret = sysfs_fd_get_str(fd, buf, 50); | |
10896 | if (ret < 0) | |
10897 | return ret; | |
10898 | ||
10899 | ret = COMPLETED_OK; | |
10900 | if (strncmp(buf, "none", 4) == 0) { | |
10901 | ret = COMPLETED_NONE; | |
10902 | } else if (strncmp(buf, "delayed", 7) == 0) { | |
10903 | ret = COMPLETED_DELAYED; | |
10904 | } else { | |
10905 | char *ep; | |
10906 | *val = strtoull(buf, &ep, 0); | |
10907 | if (ep == buf || (*ep != 0 && *ep != '\n' && *ep != ' ')) | |
10908 | ret = -1; | |
10909 | } | |
10910 | return ret; | |
10911 | } | |
10912 | ||
eee67a47 AK |
10913 | /******************************************************************************* |
10914 | * Function: wait_for_reshape_imsm | |
10915 | * Description: Function writes new sync_max value and waits until | |
10916 | * reshape process reach new position | |
10917 | * Parameters: | |
10918 | * sra : general array info | |
eee67a47 AK |
10919 | * ndata : number of disks in new array's layout |
10920 | * Returns: | |
10921 | * 0 : success, | |
10922 | * 1 : there is no reshape in progress, | |
10923 | * -1 : fail | |
10924 | ******************************************************************************/ | |
ae9f01f8 | 10925 | int wait_for_reshape_imsm(struct mdinfo *sra, int ndata) |
eee67a47 | 10926 | { |
85ca499c | 10927 | int fd = sysfs_get_fd(sra, NULL, "sync_completed"); |
df2647fa | 10928 | int retry = 3; |
eee67a47 | 10929 | unsigned long long completed; |
ae9f01f8 AK |
10930 | /* to_complete : new sync_max position */ |
10931 | unsigned long long to_complete = sra->reshape_progress; | |
10932 | unsigned long long position_to_set = to_complete / ndata; | |
eee67a47 | 10933 | |
ae9f01f8 | 10934 | if (fd < 0) { |
1ade5cc1 | 10935 | dprintf("cannot open reshape_position\n"); |
eee67a47 | 10936 | return 1; |
ae9f01f8 | 10937 | } |
eee67a47 | 10938 | |
df2647fa PB |
10939 | do { |
10940 | if (sysfs_fd_get_ll(fd, &completed) < 0) { | |
10941 | if (!retry) { | |
10942 | dprintf("cannot read reshape_position (no reshape in progres)\n"); | |
10943 | close(fd); | |
10944 | return 1; | |
10945 | } | |
10946 | usleep(30000); | |
10947 | } else | |
10948 | break; | |
10949 | } while (retry--); | |
eee67a47 | 10950 | |
85ca499c | 10951 | if (completed > position_to_set) { |
1ade5cc1 | 10952 | dprintf("wrong next position to set %llu (%llu)\n", |
85ca499c | 10953 | to_complete, position_to_set); |
ae9f01f8 AK |
10954 | close(fd); |
10955 | return -1; | |
10956 | } | |
10957 | dprintf("Position set: %llu\n", position_to_set); | |
10958 | if (sysfs_set_num(sra, NULL, "sync_max", | |
10959 | position_to_set) != 0) { | |
1ade5cc1 | 10960 | dprintf("cannot set reshape position to %llu\n", |
ae9f01f8 AK |
10961 | position_to_set); |
10962 | close(fd); | |
10963 | return -1; | |
eee67a47 AK |
10964 | } |
10965 | ||
eee67a47 | 10966 | do { |
0febb20c | 10967 | int rc; |
eee67a47 | 10968 | char action[20]; |
5ff3a780 | 10969 | int timeout = 3000; |
0febb20c | 10970 | |
5ff3a780 | 10971 | sysfs_wait(fd, &timeout); |
a47e44fb AK |
10972 | if (sysfs_get_str(sra, NULL, "sync_action", |
10973 | action, 20) > 0 && | |
d7d3809a | 10974 | strncmp(action, "reshape", 7) != 0) { |
b2be2b62 AO |
10975 | if (strncmp(action, "idle", 4) == 0) |
10976 | break; | |
d7d3809a AP |
10977 | close(fd); |
10978 | return -1; | |
10979 | } | |
0febb20c AO |
10980 | |
10981 | rc = read_completed(fd, &completed); | |
10982 | if (rc < 0) { | |
1ade5cc1 | 10983 | dprintf("cannot read reshape_position (in loop)\n"); |
eee67a47 AK |
10984 | close(fd); |
10985 | return 1; | |
0febb20c AO |
10986 | } else if (rc == COMPLETED_NONE) |
10987 | break; | |
85ca499c | 10988 | } while (completed < position_to_set); |
b2be2b62 | 10989 | |
eee67a47 AK |
10990 | close(fd); |
10991 | return 0; | |
eee67a47 AK |
10992 | } |
10993 | ||
b915c95f AK |
10994 | /******************************************************************************* |
10995 | * Function: check_degradation_change | |
10996 | * Description: Check that array hasn't become failed. | |
10997 | * Parameters: | |
10998 | * info : for sysfs access | |
10999 | * sources : source disks descriptors | |
11000 | * degraded: previous degradation level | |
11001 | * Returns: | |
11002 | * degradation level | |
11003 | ******************************************************************************/ | |
11004 | int check_degradation_change(struct mdinfo *info, | |
11005 | int *sources, | |
11006 | int degraded) | |
11007 | { | |
11008 | unsigned long long new_degraded; | |
e1993023 LD |
11009 | int rv; |
11010 | ||
11011 | rv = sysfs_get_ll(info, NULL, "degraded", &new_degraded); | |
089f9d79 | 11012 | if (rv == -1 || (new_degraded != (unsigned long long)degraded)) { |
b915c95f AK |
11013 | /* check each device to ensure it is still working */ |
11014 | struct mdinfo *sd; | |
11015 | new_degraded = 0; | |
11016 | for (sd = info->devs ; sd ; sd = sd->next) { | |
11017 | if (sd->disk.state & (1<<MD_DISK_FAULTY)) | |
11018 | continue; | |
11019 | if (sd->disk.state & (1<<MD_DISK_SYNC)) { | |
cf52eff5 TM |
11020 | char sbuf[100]; |
11021 | ||
b915c95f | 11022 | if (sysfs_get_str(info, |
cf52eff5 | 11023 | sd, "state", sbuf, sizeof(sbuf)) < 0 || |
b915c95f AK |
11024 | strstr(sbuf, "faulty") || |
11025 | strstr(sbuf, "in_sync") == NULL) { | |
11026 | /* this device is dead */ | |
11027 | sd->disk.state = (1<<MD_DISK_FAULTY); | |
11028 | if (sd->disk.raid_disk >= 0 && | |
11029 | sources[sd->disk.raid_disk] >= 0) { | |
11030 | close(sources[ | |
11031 | sd->disk.raid_disk]); | |
11032 | sources[sd->disk.raid_disk] = | |
11033 | -1; | |
11034 | } | |
11035 | new_degraded++; | |
11036 | } | |
11037 | } | |
11038 | } | |
11039 | } | |
11040 | ||
11041 | return new_degraded; | |
11042 | } | |
11043 | ||
10f22854 AK |
11044 | /******************************************************************************* |
11045 | * Function: imsm_manage_reshape | |
11046 | * Description: Function finds array under reshape and it manages reshape | |
11047 | * process. It creates stripes backups (if required) and sets | |
942e1cdb | 11048 | * checkpoints. |
10f22854 AK |
11049 | * Parameters: |
11050 | * afd : Backup handle (nattive) - not used | |
11051 | * sra : general array info | |
11052 | * reshape : reshape parameters - not used | |
11053 | * st : supertype structure | |
11054 | * blocks : size of critical section [blocks] | |
11055 | * fds : table of source device descriptor | |
11056 | * offsets : start of array (offest per devices) | |
11057 | * dests : not used | |
11058 | * destfd : table of destination device descriptor | |
11059 | * destoffsets : table of destination offsets (per device) | |
11060 | * Returns: | |
11061 | * 1 : success, reshape is done | |
11062 | * 0 : fail | |
11063 | ******************************************************************************/ | |
999b4972 N |
11064 | static int imsm_manage_reshape( |
11065 | int afd, struct mdinfo *sra, struct reshape *reshape, | |
10f22854 | 11066 | struct supertype *st, unsigned long backup_blocks, |
999b4972 N |
11067 | int *fds, unsigned long long *offsets, |
11068 | int dests, int *destfd, unsigned long long *destoffsets) | |
11069 | { | |
10f22854 AK |
11070 | int ret_val = 0; |
11071 | struct intel_super *super = st->sb; | |
594dc1b8 | 11072 | struct intel_dev *dv; |
de44e46f | 11073 | unsigned int sector_size = super->sector_size; |
10f22854 | 11074 | struct imsm_dev *dev = NULL; |
a6b6d984 | 11075 | struct imsm_map *map_src; |
10f22854 AK |
11076 | int migr_vol_qan = 0; |
11077 | int ndata, odata; /* [bytes] */ | |
11078 | int chunk; /* [bytes] */ | |
11079 | struct migr_record *migr_rec; | |
11080 | char *buf = NULL; | |
11081 | unsigned int buf_size; /* [bytes] */ | |
11082 | unsigned long long max_position; /* array size [bytes] */ | |
11083 | unsigned long long next_step; /* [blocks]/[bytes] */ | |
11084 | unsigned long long old_data_stripe_length; | |
10f22854 AK |
11085 | unsigned long long start_src; /* [bytes] */ |
11086 | unsigned long long start; /* [bytes] */ | |
11087 | unsigned long long start_buf_shift; /* [bytes] */ | |
b915c95f | 11088 | int degraded = 0; |
ab724b98 | 11089 | int source_layout = 0; |
10f22854 | 11090 | |
79a16a9b JS |
11091 | if (!sra) |
11092 | return ret_val; | |
11093 | ||
11094 | if (!fds || !offsets) | |
10f22854 AK |
11095 | goto abort; |
11096 | ||
11097 | /* Find volume during the reshape */ | |
11098 | for (dv = super->devlist; dv; dv = dv->next) { | |
11099 | if (dv->dev->vol.migr_type == MIGR_GEN_MIGR | |
11100 | && dv->dev->vol.migr_state == 1) { | |
11101 | dev = dv->dev; | |
11102 | migr_vol_qan++; | |
11103 | } | |
11104 | } | |
11105 | /* Only one volume can migrate at the same time */ | |
11106 | if (migr_vol_qan != 1) { | |
676e87a8 | 11107 | pr_err("%s", migr_vol_qan ? |
10f22854 AK |
11108 | "Number of migrating volumes greater than 1\n" : |
11109 | "There is no volume during migrationg\n"); | |
11110 | goto abort; | |
11111 | } | |
11112 | ||
238c0a71 | 11113 | map_src = get_imsm_map(dev, MAP_1); |
10f22854 AK |
11114 | if (map_src == NULL) |
11115 | goto abort; | |
10f22854 | 11116 | |
238c0a71 AK |
11117 | ndata = imsm_num_data_members(dev, MAP_0); |
11118 | odata = imsm_num_data_members(dev, MAP_1); | |
10f22854 | 11119 | |
7b1ab482 | 11120 | chunk = __le16_to_cpu(map_src->blocks_per_strip) * 512; |
10f22854 AK |
11121 | old_data_stripe_length = odata * chunk; |
11122 | ||
11123 | migr_rec = super->migr_rec; | |
11124 | ||
10f22854 AK |
11125 | /* initialize migration record for start condition */ |
11126 | if (sra->reshape_progress == 0) | |
11127 | init_migr_record_imsm(st, dev, sra); | |
b2c59438 AK |
11128 | else { |
11129 | if (__le32_to_cpu(migr_rec->rec_status) != UNIT_SRC_NORMAL) { | |
7a862a02 | 11130 | dprintf("imsm: cannot restart migration when data are present in copy area.\n"); |
b2c59438 AK |
11131 | goto abort; |
11132 | } | |
6a75c8ca AK |
11133 | /* Save checkpoint to update migration record for current |
11134 | * reshape position (in md). It can be farther than current | |
11135 | * reshape position in metadata. | |
11136 | */ | |
11137 | if (save_checkpoint_imsm(st, sra, UNIT_SRC_NORMAL) == 1) { | |
11138 | /* ignore error == 2, this can mean end of reshape here | |
11139 | */ | |
7a862a02 | 11140 | dprintf("imsm: Cannot write checkpoint to migration record (UNIT_SRC_NORMAL, initial save)\n"); |
6a75c8ca AK |
11141 | goto abort; |
11142 | } | |
b2c59438 | 11143 | } |
10f22854 AK |
11144 | |
11145 | /* size for data */ | |
11146 | buf_size = __le32_to_cpu(migr_rec->blocks_per_unit) * 512; | |
11147 | /* extend buffer size for parity disk */ | |
11148 | buf_size += __le32_to_cpu(migr_rec->dest_depth_per_unit) * 512; | |
11149 | /* add space for stripe aligment */ | |
11150 | buf_size += old_data_stripe_length; | |
de44e46f PB |
11151 | if (posix_memalign((void **)&buf, MAX_SECTOR_SIZE, buf_size)) { |
11152 | dprintf("imsm: Cannot allocate checkpoint buffer\n"); | |
10f22854 AK |
11153 | goto abort; |
11154 | } | |
11155 | ||
3ef4403c | 11156 | max_position = sra->component_size * ndata; |
68eb8bc6 | 11157 | source_layout = imsm_level_to_layout(map_src->raid_level); |
10f22854 AK |
11158 | |
11159 | while (__le32_to_cpu(migr_rec->curr_migr_unit) < | |
11160 | __le32_to_cpu(migr_rec->num_migr_units)) { | |
11161 | /* current reshape position [blocks] */ | |
11162 | unsigned long long current_position = | |
11163 | __le32_to_cpu(migr_rec->blocks_per_unit) | |
11164 | * __le32_to_cpu(migr_rec->curr_migr_unit); | |
11165 | unsigned long long border; | |
11166 | ||
b915c95f AK |
11167 | /* Check that array hasn't become failed. |
11168 | */ | |
11169 | degraded = check_degradation_change(sra, fds, degraded); | |
11170 | if (degraded > 1) { | |
7a862a02 | 11171 | dprintf("imsm: Abort reshape due to degradation level (%i)\n", degraded); |
b915c95f AK |
11172 | goto abort; |
11173 | } | |
11174 | ||
10f22854 AK |
11175 | next_step = __le32_to_cpu(migr_rec->blocks_per_unit); |
11176 | ||
11177 | if ((current_position + next_step) > max_position) | |
11178 | next_step = max_position - current_position; | |
11179 | ||
92144abf | 11180 | start = current_position * 512; |
10f22854 | 11181 | |
942e1cdb | 11182 | /* align reading start to old geometry */ |
10f22854 AK |
11183 | start_buf_shift = start % old_data_stripe_length; |
11184 | start_src = start - start_buf_shift; | |
11185 | ||
11186 | border = (start_src / odata) - (start / ndata); | |
11187 | border /= 512; | |
11188 | if (border <= __le32_to_cpu(migr_rec->dest_depth_per_unit)) { | |
11189 | /* save critical stripes to buf | |
11190 | * start - start address of current unit | |
11191 | * to backup [bytes] | |
11192 | * start_src - start address of current unit | |
11193 | * to backup alligned to source array | |
11194 | * [bytes] | |
11195 | */ | |
594dc1b8 | 11196 | unsigned long long next_step_filler; |
10f22854 AK |
11197 | unsigned long long copy_length = next_step * 512; |
11198 | ||
11199 | /* allign copy area length to stripe in old geometry */ | |
11200 | next_step_filler = ((copy_length + start_buf_shift) | |
11201 | % old_data_stripe_length); | |
11202 | if (next_step_filler) | |
11203 | next_step_filler = (old_data_stripe_length | |
11204 | - next_step_filler); | |
7a862a02 | 11205 | 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 |
11206 | start, start_src, copy_length, |
11207 | start_buf_shift, next_step_filler); | |
11208 | ||
11209 | if (save_stripes(fds, offsets, map_src->num_members, | |
ab724b98 AK |
11210 | chunk, map_src->raid_level, |
11211 | source_layout, 0, NULL, start_src, | |
10f22854 AK |
11212 | copy_length + |
11213 | next_step_filler + start_buf_shift, | |
11214 | buf)) { | |
7a862a02 | 11215 | dprintf("imsm: Cannot save stripes to buffer\n"); |
10f22854 AK |
11216 | goto abort; |
11217 | } | |
11218 | /* Convert data to destination format and store it | |
11219 | * in backup general migration area | |
11220 | */ | |
11221 | if (save_backup_imsm(st, dev, sra, | |
aea93171 | 11222 | buf + start_buf_shift, copy_length)) { |
7a862a02 | 11223 | dprintf("imsm: Cannot save stripes to target devices\n"); |
10f22854 AK |
11224 | goto abort; |
11225 | } | |
11226 | if (save_checkpoint_imsm(st, sra, | |
11227 | UNIT_SRC_IN_CP_AREA)) { | |
7a862a02 | 11228 | dprintf("imsm: Cannot write checkpoint to migration record (UNIT_SRC_IN_CP_AREA)\n"); |
10f22854 AK |
11229 | goto abort; |
11230 | } | |
8016a6d4 AK |
11231 | } else { |
11232 | /* set next step to use whole border area */ | |
11233 | border /= next_step; | |
11234 | if (border > 1) | |
11235 | next_step *= border; | |
10f22854 AK |
11236 | } |
11237 | /* When data backed up, checkpoint stored, | |
11238 | * kick the kernel to reshape unit of data | |
11239 | */ | |
11240 | next_step = next_step + sra->reshape_progress; | |
8016a6d4 AK |
11241 | /* limit next step to array max position */ |
11242 | if (next_step > max_position) | |
11243 | next_step = max_position; | |
10f22854 AK |
11244 | sysfs_set_num(sra, NULL, "suspend_lo", sra->reshape_progress); |
11245 | sysfs_set_num(sra, NULL, "suspend_hi", next_step); | |
ae9f01f8 | 11246 | sra->reshape_progress = next_step; |
10f22854 AK |
11247 | |
11248 | /* wait until reshape finish */ | |
c85338c6 | 11249 | if (wait_for_reshape_imsm(sra, ndata)) { |
c47b0ff6 AK |
11250 | dprintf("wait_for_reshape_imsm returned error!\n"); |
11251 | goto abort; | |
11252 | } | |
84d11e6c N |
11253 | if (sigterm) |
11254 | goto abort; | |
10f22854 | 11255 | |
0228d92c AK |
11256 | if (save_checkpoint_imsm(st, sra, UNIT_SRC_NORMAL) == 1) { |
11257 | /* ignore error == 2, this can mean end of reshape here | |
11258 | */ | |
7a862a02 | 11259 | dprintf("imsm: Cannot write checkpoint to migration record (UNIT_SRC_NORMAL)\n"); |
10f22854 AK |
11260 | goto abort; |
11261 | } | |
11262 | ||
11263 | } | |
11264 | ||
71e5411e PB |
11265 | /* clear migr_rec on disks after successful migration */ |
11266 | struct dl *d; | |
11267 | ||
de44e46f | 11268 | memset(super->migr_rec_buf, 0, MIGR_REC_BUF_SECTORS*sector_size); |
71e5411e PB |
11269 | for (d = super->disks; d; d = d->next) { |
11270 | if (d->index < 0 || is_failed(&d->disk)) | |
11271 | continue; | |
11272 | unsigned long long dsize; | |
11273 | ||
11274 | get_dev_size(d->fd, NULL, &dsize); | |
de44e46f | 11275 | if (lseek64(d->fd, dsize - MIGR_REC_SECTOR_POSITION*sector_size, |
71e5411e PB |
11276 | SEEK_SET) >= 0) { |
11277 | if (write(d->fd, super->migr_rec_buf, | |
de44e46f PB |
11278 | MIGR_REC_BUF_SECTORS*sector_size) != |
11279 | MIGR_REC_BUF_SECTORS*sector_size) | |
71e5411e PB |
11280 | perror("Write migr_rec failed"); |
11281 | } | |
11282 | } | |
11283 | ||
10f22854 AK |
11284 | /* return '1' if done */ |
11285 | ret_val = 1; | |
11286 | abort: | |
11287 | free(buf); | |
942e1cdb N |
11288 | /* See Grow.c: abort_reshape() for further explanation */ |
11289 | sysfs_set_num(sra, NULL, "suspend_lo", 0x7FFFFFFFFFFFFFFFULL); | |
11290 | sysfs_set_num(sra, NULL, "suspend_hi", 0); | |
11291 | sysfs_set_num(sra, NULL, "suspend_lo", 0); | |
10f22854 AK |
11292 | |
11293 | return ret_val; | |
999b4972 | 11294 | } |
0c21b485 | 11295 | |
71204a50 | 11296 | #endif /* MDASSEMBLE */ |
999b4972 | 11297 | |
cdddbdbc DW |
11298 | struct superswitch super_imsm = { |
11299 | #ifndef MDASSEMBLE | |
11300 | .examine_super = examine_super_imsm, | |
11301 | .brief_examine_super = brief_examine_super_imsm, | |
4737ae25 | 11302 | .brief_examine_subarrays = brief_examine_subarrays_imsm, |
9d84c8ea | 11303 | .export_examine_super = export_examine_super_imsm, |
cdddbdbc DW |
11304 | .detail_super = detail_super_imsm, |
11305 | .brief_detail_super = brief_detail_super_imsm, | |
bf5a934a | 11306 | .write_init_super = write_init_super_imsm, |
0e600426 N |
11307 | .validate_geometry = validate_geometry_imsm, |
11308 | .add_to_super = add_to_super_imsm, | |
1a64be56 | 11309 | .remove_from_super = remove_from_super_imsm, |
d665cc31 | 11310 | .detail_platform = detail_platform_imsm, |
e50cf220 | 11311 | .export_detail_platform = export_detail_platform_imsm, |
33414a01 | 11312 | .kill_subarray = kill_subarray_imsm, |
aa534678 | 11313 | .update_subarray = update_subarray_imsm, |
2b959fbf | 11314 | .load_container = load_container_imsm, |
71204a50 N |
11315 | .default_geometry = default_geometry_imsm, |
11316 | .get_disk_controller_domain = imsm_get_disk_controller_domain, | |
11317 | .reshape_super = imsm_reshape_super, | |
11318 | .manage_reshape = imsm_manage_reshape, | |
9e2d750d | 11319 | .recover_backup = recover_backup_imsm, |
74db60b0 | 11320 | .copy_metadata = copy_metadata_imsm, |
cdddbdbc DW |
11321 | #endif |
11322 | .match_home = match_home_imsm, | |
11323 | .uuid_from_super= uuid_from_super_imsm, | |
11324 | .getinfo_super = getinfo_super_imsm, | |
5c4cd5da | 11325 | .getinfo_super_disks = getinfo_super_disks_imsm, |
cdddbdbc DW |
11326 | .update_super = update_super_imsm, |
11327 | ||
11328 | .avail_size = avail_size_imsm, | |
80e7f8c3 | 11329 | .min_acceptable_spare_size = min_acceptable_spare_size_imsm, |
cdddbdbc DW |
11330 | |
11331 | .compare_super = compare_super_imsm, | |
11332 | ||
11333 | .load_super = load_super_imsm, | |
bf5a934a | 11334 | .init_super = init_super_imsm, |
e683ca88 | 11335 | .store_super = store_super_imsm, |
cdddbdbc DW |
11336 | .free_super = free_super_imsm, |
11337 | .match_metadata_desc = match_metadata_desc_imsm, | |
bf5a934a | 11338 | .container_content = container_content_imsm, |
0c21b485 | 11339 | .validate_container = validate_container_imsm, |
cdddbdbc | 11340 | |
cdddbdbc | 11341 | .external = 1, |
4cce4069 | 11342 | .name = "imsm", |
845dea95 | 11343 | |
0e600426 | 11344 | #ifndef MDASSEMBLE |
845dea95 NB |
11345 | /* for mdmon */ |
11346 | .open_new = imsm_open_new, | |
ed9d66aa | 11347 | .set_array_state= imsm_set_array_state, |
845dea95 NB |
11348 | .set_disk = imsm_set_disk, |
11349 | .sync_metadata = imsm_sync_metadata, | |
88758e9d | 11350 | .activate_spare = imsm_activate_spare, |
e8319a19 | 11351 | .process_update = imsm_process_update, |
8273f55e | 11352 | .prepare_update = imsm_prepare_update, |
6f50473f | 11353 | .record_bad_block = imsm_record_badblock, |
0e600426 | 11354 | #endif /* MDASSEMBLE */ |
cdddbdbc | 11355 | }; |