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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 | \ | |
418f9b36 N |
84 | MPB_ATTRIB_EXP_STRIPE_SIZE) |
85 | ||
86 | /* Define attributes that are unused but not harmful */ | |
87 | #define MPB_ATTRIB_IGNORED (MPB_ATTRIB_NEVER_USE) | |
fe7ed8cb | 88 | |
8e59f3d8 | 89 | #define MPB_SECTOR_CNT 2210 |
c2c087e6 | 90 | #define IMSM_RESERVED_SECTORS 4096 |
b81221b7 | 91 | #define NUM_BLOCKS_DIRTY_STRIPE_REGION 2056 |
979d38be | 92 | #define SECT_PER_MB_SHIFT 11 |
f36a9ecd | 93 | #define MAX_SECTOR_SIZE 4096 |
cdddbdbc DW |
94 | |
95 | /* Disk configuration info. */ | |
96 | #define IMSM_MAX_DEVICES 255 | |
97 | struct imsm_disk { | |
98 | __u8 serial[MAX_RAID_SERIAL_LEN];/* 0xD8 - 0xE7 ascii serial number */ | |
5551b113 | 99 | __u32 total_blocks_lo; /* 0xE8 - 0xEB total blocks lo */ |
cdddbdbc | 100 | __u32 scsi_id; /* 0xEC - 0xEF scsi ID */ |
f2f27e63 DW |
101 | #define SPARE_DISK __cpu_to_le32(0x01) /* Spare */ |
102 | #define CONFIGURED_DISK __cpu_to_le32(0x02) /* Member of some RaidDev */ | |
103 | #define FAILED_DISK __cpu_to_le32(0x04) /* Permanent failure */ | |
cdddbdbc | 104 | __u32 status; /* 0xF0 - 0xF3 */ |
1011e834 | 105 | __u32 owner_cfg_num; /* which config 0,1,2... owns this disk */ |
5551b113 CA |
106 | __u32 total_blocks_hi; /* 0xF4 - 0xF5 total blocks hi */ |
107 | #define IMSM_DISK_FILLERS 3 | |
108 | __u32 filler[IMSM_DISK_FILLERS]; /* 0xF5 - 0x107 MPB_DISK_FILLERS for future expansion */ | |
cdddbdbc DW |
109 | }; |
110 | ||
3b451610 AK |
111 | /* map selector for map managment |
112 | */ | |
238c0a71 AK |
113 | #define MAP_0 0 |
114 | #define MAP_1 1 | |
115 | #define MAP_X -1 | |
3b451610 | 116 | |
cdddbdbc DW |
117 | /* RAID map configuration infos. */ |
118 | struct imsm_map { | |
5551b113 CA |
119 | __u32 pba_of_lba0_lo; /* start address of partition */ |
120 | __u32 blocks_per_member_lo;/* blocks per member */ | |
121 | __u32 num_data_stripes_lo; /* number of data stripes */ | |
cdddbdbc DW |
122 | __u16 blocks_per_strip; |
123 | __u8 map_state; /* Normal, Uninitialized, Degraded, Failed */ | |
124 | #define IMSM_T_STATE_NORMAL 0 | |
125 | #define IMSM_T_STATE_UNINITIALIZED 1 | |
e3bba0e0 DW |
126 | #define IMSM_T_STATE_DEGRADED 2 |
127 | #define IMSM_T_STATE_FAILED 3 | |
cdddbdbc DW |
128 | __u8 raid_level; |
129 | #define IMSM_T_RAID0 0 | |
130 | #define IMSM_T_RAID1 1 | |
131 | #define IMSM_T_RAID5 5 /* since metadata version 1.2.02 ? */ | |
132 | __u8 num_members; /* number of member disks */ | |
fe7ed8cb DW |
133 | __u8 num_domains; /* number of parity domains */ |
134 | __u8 failed_disk_num; /* valid only when state is degraded */ | |
252d23c0 | 135 | __u8 ddf; |
5551b113 CA |
136 | __u32 pba_of_lba0_hi; |
137 | __u32 blocks_per_member_hi; | |
138 | __u32 num_data_stripes_hi; | |
139 | __u32 filler[4]; /* expansion area */ | |
7eef0453 | 140 | #define IMSM_ORD_REBUILD (1 << 24) |
cdddbdbc | 141 | __u32 disk_ord_tbl[1]; /* disk_ord_tbl[num_members], |
7eef0453 DW |
142 | * top byte contains some flags |
143 | */ | |
cdddbdbc DW |
144 | } __attribute__ ((packed)); |
145 | ||
146 | struct imsm_vol { | |
f8f603f1 | 147 | __u32 curr_migr_unit; |
fe7ed8cb | 148 | __u32 checkpoint_id; /* id to access curr_migr_unit */ |
cdddbdbc | 149 | __u8 migr_state; /* Normal or Migrating */ |
e3bba0e0 DW |
150 | #define MIGR_INIT 0 |
151 | #define MIGR_REBUILD 1 | |
152 | #define MIGR_VERIFY 2 /* analagous to echo check > sync_action */ | |
153 | #define MIGR_GEN_MIGR 3 | |
154 | #define MIGR_STATE_CHANGE 4 | |
1484e727 | 155 | #define MIGR_REPAIR 5 |
cdddbdbc DW |
156 | __u8 migr_type; /* Initializing, Rebuilding, ... */ |
157 | __u8 dirty; | |
fe7ed8cb DW |
158 | __u8 fs_state; /* fast-sync state for CnG (0xff == disabled) */ |
159 | __u16 verify_errors; /* number of mismatches */ | |
160 | __u16 bad_blocks; /* number of bad blocks during verify */ | |
161 | __u32 filler[4]; | |
cdddbdbc DW |
162 | struct imsm_map map[1]; |
163 | /* here comes another one if migr_state */ | |
164 | } __attribute__ ((packed)); | |
165 | ||
166 | struct imsm_dev { | |
fe7ed8cb | 167 | __u8 volume[MAX_RAID_SERIAL_LEN]; |
cdddbdbc DW |
168 | __u32 size_low; |
169 | __u32 size_high; | |
fe7ed8cb DW |
170 | #define DEV_BOOTABLE __cpu_to_le32(0x01) |
171 | #define DEV_BOOT_DEVICE __cpu_to_le32(0x02) | |
172 | #define DEV_READ_COALESCING __cpu_to_le32(0x04) | |
173 | #define DEV_WRITE_COALESCING __cpu_to_le32(0x08) | |
174 | #define DEV_LAST_SHUTDOWN_DIRTY __cpu_to_le32(0x10) | |
175 | #define DEV_HIDDEN_AT_BOOT __cpu_to_le32(0x20) | |
176 | #define DEV_CURRENTLY_HIDDEN __cpu_to_le32(0x40) | |
177 | #define DEV_VERIFY_AND_FIX __cpu_to_le32(0x80) | |
178 | #define DEV_MAP_STATE_UNINIT __cpu_to_le32(0x100) | |
179 | #define DEV_NO_AUTO_RECOVERY __cpu_to_le32(0x200) | |
180 | #define DEV_CLONE_N_GO __cpu_to_le32(0x400) | |
181 | #define DEV_CLONE_MAN_SYNC __cpu_to_le32(0x800) | |
182 | #define DEV_CNG_MASTER_DISK_NUM __cpu_to_le32(0x1000) | |
cdddbdbc DW |
183 | __u32 status; /* Persistent RaidDev status */ |
184 | __u32 reserved_blocks; /* Reserved blocks at beginning of volume */ | |
fe7ed8cb DW |
185 | __u8 migr_priority; |
186 | __u8 num_sub_vols; | |
187 | __u8 tid; | |
188 | __u8 cng_master_disk; | |
189 | __u16 cache_policy; | |
190 | __u8 cng_state; | |
191 | __u8 cng_sub_state; | |
192 | #define IMSM_DEV_FILLERS 10 | |
cdddbdbc DW |
193 | __u32 filler[IMSM_DEV_FILLERS]; |
194 | struct imsm_vol vol; | |
195 | } __attribute__ ((packed)); | |
196 | ||
197 | struct imsm_super { | |
198 | __u8 sig[MAX_SIGNATURE_LENGTH]; /* 0x00 - 0x1F */ | |
199 | __u32 check_sum; /* 0x20 - 0x23 MPB Checksum */ | |
200 | __u32 mpb_size; /* 0x24 - 0x27 Size of MPB */ | |
201 | __u32 family_num; /* 0x28 - 0x2B Checksum from first time this config was written */ | |
202 | __u32 generation_num; /* 0x2C - 0x2F Incremented each time this array's MPB is written */ | |
604b746f JD |
203 | __u32 error_log_size; /* 0x30 - 0x33 in bytes */ |
204 | __u32 attributes; /* 0x34 - 0x37 */ | |
cdddbdbc DW |
205 | __u8 num_disks; /* 0x38 Number of configured disks */ |
206 | __u8 num_raid_devs; /* 0x39 Number of configured volumes */ | |
604b746f JD |
207 | __u8 error_log_pos; /* 0x3A */ |
208 | __u8 fill[1]; /* 0x3B */ | |
209 | __u32 cache_size; /* 0x3c - 0x40 in mb */ | |
210 | __u32 orig_family_num; /* 0x40 - 0x43 original family num */ | |
211 | __u32 pwr_cycle_count; /* 0x44 - 0x47 simulated power cycle count for array */ | |
212 | __u32 bbm_log_size; /* 0x48 - 0x4B - size of bad Block Mgmt Log in bytes */ | |
213 | #define IMSM_FILLERS 35 | |
214 | __u32 filler[IMSM_FILLERS]; /* 0x4C - 0xD7 RAID_MPB_FILLERS */ | |
cdddbdbc DW |
215 | struct imsm_disk disk[1]; /* 0xD8 diskTbl[numDisks] */ |
216 | /* here comes imsm_dev[num_raid_devs] */ | |
604b746f | 217 | /* here comes BBM logs */ |
cdddbdbc DW |
218 | } __attribute__ ((packed)); |
219 | ||
604b746f | 220 | #define BBM_LOG_MAX_ENTRIES 254 |
8d67477f TM |
221 | #define BBM_LOG_MAX_LBA_ENTRY_VAL 256 /* Represents 256 LBAs */ |
222 | #define BBM_LOG_SIGNATURE 0xabadb10c | |
223 | ||
224 | struct bbm_log_block_addr { | |
225 | __u16 w1; | |
226 | __u32 dw1; | |
227 | } __attribute__ ((__packed__)); | |
604b746f JD |
228 | |
229 | struct bbm_log_entry { | |
8d67477f TM |
230 | __u8 marked_count; /* Number of blocks marked - 1 */ |
231 | __u8 disk_ordinal; /* Disk entry within the imsm_super */ | |
232 | struct bbm_log_block_addr defective_block_start; | |
604b746f JD |
233 | } __attribute__ ((__packed__)); |
234 | ||
235 | struct bbm_log { | |
236 | __u32 signature; /* 0xABADB10C */ | |
237 | __u32 entry_count; | |
8d67477f | 238 | struct bbm_log_entry marked_block_entries[BBM_LOG_MAX_ENTRIES]; |
604b746f JD |
239 | } __attribute__ ((__packed__)); |
240 | ||
cdddbdbc DW |
241 | #ifndef MDASSEMBLE |
242 | static char *map_state_str[] = { "normal", "uninitialized", "degraded", "failed" }; | |
243 | #endif | |
244 | ||
8e59f3d8 AK |
245 | #define RAID_DISK_RESERVED_BLOCKS_IMSM_HI 2209 |
246 | ||
247 | #define GEN_MIGR_AREA_SIZE 2048 /* General Migration Copy Area size in blocks */ | |
248 | ||
de44e46f PB |
249 | #define MIGR_REC_BUF_SECTORS 1 /* size of migr_record i/o buffer in sectors */ |
250 | #define MIGR_REC_SECTOR_POSITION 1 /* migr_record position offset on disk, | |
251 | * MIGR_REC_BUF_SECTORS <= MIGR_REC_SECTOR_POS | |
17a4eaf9 AK |
252 | */ |
253 | ||
8e59f3d8 AK |
254 | #define UNIT_SRC_NORMAL 0 /* Source data for curr_migr_unit must |
255 | * be recovered using srcMap */ | |
256 | #define UNIT_SRC_IN_CP_AREA 1 /* Source data for curr_migr_unit has | |
257 | * already been migrated and must | |
258 | * be recovered from checkpoint area */ | |
259 | struct migr_record { | |
260 | __u32 rec_status; /* Status used to determine how to restart | |
261 | * migration in case it aborts | |
262 | * in some fashion */ | |
263 | __u32 curr_migr_unit; /* 0..numMigrUnits-1 */ | |
264 | __u32 family_num; /* Family number of MPB | |
265 | * containing the RaidDev | |
266 | * that is migrating */ | |
267 | __u32 ascending_migr; /* True if migrating in increasing | |
268 | * order of lbas */ | |
269 | __u32 blocks_per_unit; /* Num disk blocks per unit of operation */ | |
270 | __u32 dest_depth_per_unit; /* Num member blocks each destMap | |
271 | * member disk | |
272 | * advances per unit-of-operation */ | |
273 | __u32 ckpt_area_pba; /* Pba of first block of ckpt copy area */ | |
274 | __u32 dest_1st_member_lba; /* First member lba on first | |
275 | * stripe of destination */ | |
276 | __u32 num_migr_units; /* Total num migration units-of-op */ | |
277 | __u32 post_migr_vol_cap; /* Size of volume after | |
278 | * migration completes */ | |
279 | __u32 post_migr_vol_cap_hi; /* Expansion space for LBA64 */ | |
280 | __u32 ckpt_read_disk_num; /* Which member disk in destSubMap[0] the | |
281 | * migration ckpt record was read from | |
282 | * (for recovered migrations) */ | |
283 | } __attribute__ ((__packed__)); | |
284 | ||
ec50f7b6 LM |
285 | struct md_list { |
286 | /* usage marker: | |
287 | * 1: load metadata | |
288 | * 2: metadata does not match | |
289 | * 4: already checked | |
290 | */ | |
291 | int used; | |
292 | char *devname; | |
293 | int found; | |
294 | int container; | |
295 | dev_t st_rdev; | |
296 | struct md_list *next; | |
297 | }; | |
298 | ||
e7b84f9d | 299 | #define pr_vrb(fmt, arg...) (void) (verbose && pr_err(fmt, ##arg)) |
ec50f7b6 | 300 | |
1484e727 DW |
301 | static __u8 migr_type(struct imsm_dev *dev) |
302 | { | |
303 | if (dev->vol.migr_type == MIGR_VERIFY && | |
304 | dev->status & DEV_VERIFY_AND_FIX) | |
305 | return MIGR_REPAIR; | |
306 | else | |
307 | return dev->vol.migr_type; | |
308 | } | |
309 | ||
310 | static void set_migr_type(struct imsm_dev *dev, __u8 migr_type) | |
311 | { | |
312 | /* for compatibility with older oroms convert MIGR_REPAIR, into | |
313 | * MIGR_VERIFY w/ DEV_VERIFY_AND_FIX status | |
314 | */ | |
315 | if (migr_type == MIGR_REPAIR) { | |
316 | dev->vol.migr_type = MIGR_VERIFY; | |
317 | dev->status |= DEV_VERIFY_AND_FIX; | |
318 | } else { | |
319 | dev->vol.migr_type = migr_type; | |
320 | dev->status &= ~DEV_VERIFY_AND_FIX; | |
321 | } | |
322 | } | |
323 | ||
f36a9ecd | 324 | static unsigned int sector_count(__u32 bytes, unsigned int sector_size) |
cdddbdbc | 325 | { |
f36a9ecd | 326 | return ROUND_UP(bytes, sector_size) / sector_size; |
87eb16df | 327 | } |
cdddbdbc | 328 | |
f36a9ecd PB |
329 | static unsigned int mpb_sectors(struct imsm_super *mpb, |
330 | unsigned int sector_size) | |
87eb16df | 331 | { |
f36a9ecd | 332 | return sector_count(__le32_to_cpu(mpb->mpb_size), sector_size); |
cdddbdbc DW |
333 | } |
334 | ||
ba2de7ba DW |
335 | struct intel_dev { |
336 | struct imsm_dev *dev; | |
337 | struct intel_dev *next; | |
f21e18ca | 338 | unsigned index; |
ba2de7ba DW |
339 | }; |
340 | ||
88654014 LM |
341 | struct intel_hba { |
342 | enum sys_dev_type type; | |
343 | char *path; | |
344 | char *pci_id; | |
345 | struct intel_hba *next; | |
346 | }; | |
347 | ||
1a64be56 LM |
348 | enum action { |
349 | DISK_REMOVE = 1, | |
350 | DISK_ADD | |
351 | }; | |
cdddbdbc DW |
352 | /* internal representation of IMSM metadata */ |
353 | struct intel_super { | |
354 | union { | |
949c47a0 DW |
355 | void *buf; /* O_DIRECT buffer for reading/writing metadata */ |
356 | struct imsm_super *anchor; /* immovable parameters */ | |
cdddbdbc | 357 | }; |
8e59f3d8 AK |
358 | union { |
359 | void *migr_rec_buf; /* buffer for I/O operations */ | |
360 | struct migr_record *migr_rec; /* migration record */ | |
361 | }; | |
51d83f5d AK |
362 | int clean_migration_record_by_mdmon; /* when reshape is switched to next |
363 | array, it indicates that mdmon is allowed to clean migration | |
364 | record */ | |
949c47a0 | 365 | size_t len; /* size of the 'buf' allocation */ |
4d7b1503 DW |
366 | void *next_buf; /* for realloc'ing buf from the manager */ |
367 | size_t next_len; | |
c2c087e6 | 368 | int updates_pending; /* count of pending updates for mdmon */ |
bf5a934a | 369 | int current_vol; /* index of raid device undergoing creation */ |
5551b113 | 370 | unsigned long long create_offset; /* common start for 'current_vol' */ |
148acb7b | 371 | __u32 random; /* random data for seeding new family numbers */ |
ba2de7ba | 372 | struct intel_dev *devlist; |
fa7bb6f8 | 373 | unsigned int sector_size; /* sector size of used member drives */ |
cdddbdbc DW |
374 | struct dl { |
375 | struct dl *next; | |
376 | int index; | |
377 | __u8 serial[MAX_RAID_SERIAL_LEN]; | |
378 | int major, minor; | |
379 | char *devname; | |
b9f594fe | 380 | struct imsm_disk disk; |
cdddbdbc | 381 | int fd; |
0dcecb2e DW |
382 | int extent_cnt; |
383 | struct extent *e; /* for determining freespace @ create */ | |
efb30e7f | 384 | int raiddisk; /* slot to fill in autolayout */ |
1a64be56 | 385 | enum action action; |
ca0748fa | 386 | } *disks, *current_disk; |
1a64be56 LM |
387 | struct dl *disk_mgmt_list; /* list of disks to add/remove while mdmon |
388 | active */ | |
47ee5a45 | 389 | struct dl *missing; /* disks removed while we weren't looking */ |
43dad3d6 | 390 | struct bbm_log *bbm_log; |
88654014 | 391 | struct intel_hba *hba; /* device path of the raid controller for this metadata */ |
88c32bb1 | 392 | const struct imsm_orom *orom; /* platform firmware support */ |
a2b97981 DW |
393 | struct intel_super *next; /* (temp) list for disambiguating family_num */ |
394 | }; | |
395 | ||
396 | struct intel_disk { | |
397 | struct imsm_disk disk; | |
398 | #define IMSM_UNKNOWN_OWNER (-1) | |
399 | int owner; | |
400 | struct intel_disk *next; | |
cdddbdbc DW |
401 | }; |
402 | ||
c2c087e6 DW |
403 | struct extent { |
404 | unsigned long long start, size; | |
405 | }; | |
406 | ||
694575e7 KW |
407 | /* definitions of reshape process types */ |
408 | enum imsm_reshape_type { | |
409 | CH_TAKEOVER, | |
b5347799 | 410 | CH_MIGRATION, |
7abc9871 | 411 | CH_ARRAY_SIZE, |
694575e7 KW |
412 | }; |
413 | ||
88758e9d DW |
414 | /* definition of messages passed to imsm_process_update */ |
415 | enum imsm_update_type { | |
416 | update_activate_spare, | |
8273f55e | 417 | update_create_array, |
33414a01 | 418 | update_kill_array, |
aa534678 | 419 | update_rename_array, |
1a64be56 | 420 | update_add_remove_disk, |
78b10e66 | 421 | update_reshape_container_disks, |
48c5303a | 422 | update_reshape_migration, |
2d40f3a1 AK |
423 | update_takeover, |
424 | update_general_migration_checkpoint, | |
f3871fdc | 425 | update_size_change, |
88758e9d DW |
426 | }; |
427 | ||
428 | struct imsm_update_activate_spare { | |
429 | enum imsm_update_type type; | |
d23fe947 | 430 | struct dl *dl; |
88758e9d DW |
431 | int slot; |
432 | int array; | |
433 | struct imsm_update_activate_spare *next; | |
434 | }; | |
435 | ||
78b10e66 | 436 | struct geo_params { |
4dd2df09 | 437 | char devnm[32]; |
78b10e66 | 438 | char *dev_name; |
d04f65f4 | 439 | unsigned long long size; |
78b10e66 N |
440 | int level; |
441 | int layout; | |
442 | int chunksize; | |
443 | int raid_disks; | |
444 | }; | |
445 | ||
bb025c2f KW |
446 | enum takeover_direction { |
447 | R10_TO_R0, | |
448 | R0_TO_R10 | |
449 | }; | |
450 | struct imsm_update_takeover { | |
451 | enum imsm_update_type type; | |
452 | int subarray; | |
453 | enum takeover_direction direction; | |
454 | }; | |
78b10e66 N |
455 | |
456 | struct imsm_update_reshape { | |
457 | enum imsm_update_type type; | |
458 | int old_raid_disks; | |
459 | int new_raid_disks; | |
48c5303a PC |
460 | |
461 | int new_disks[1]; /* new_raid_disks - old_raid_disks makedev number */ | |
462 | }; | |
463 | ||
464 | struct imsm_update_reshape_migration { | |
465 | enum imsm_update_type type; | |
466 | int old_raid_disks; | |
467 | int new_raid_disks; | |
468 | /* fields for array migration changes | |
469 | */ | |
470 | int subdev; | |
471 | int new_level; | |
472 | int new_layout; | |
4bba0439 | 473 | int new_chunksize; |
48c5303a | 474 | |
d195167d | 475 | int new_disks[1]; /* new_raid_disks - old_raid_disks makedev number */ |
78b10e66 N |
476 | }; |
477 | ||
f3871fdc AK |
478 | struct imsm_update_size_change { |
479 | enum imsm_update_type type; | |
480 | int subdev; | |
481 | long long new_size; | |
482 | }; | |
483 | ||
2d40f3a1 AK |
484 | struct imsm_update_general_migration_checkpoint { |
485 | enum imsm_update_type type; | |
486 | __u32 curr_migr_unit; | |
487 | }; | |
488 | ||
54c2c1ea DW |
489 | struct disk_info { |
490 | __u8 serial[MAX_RAID_SERIAL_LEN]; | |
491 | }; | |
492 | ||
8273f55e DW |
493 | struct imsm_update_create_array { |
494 | enum imsm_update_type type; | |
8273f55e | 495 | int dev_idx; |
6a3e913e | 496 | struct imsm_dev dev; |
8273f55e DW |
497 | }; |
498 | ||
33414a01 DW |
499 | struct imsm_update_kill_array { |
500 | enum imsm_update_type type; | |
501 | int dev_idx; | |
502 | }; | |
503 | ||
aa534678 DW |
504 | struct imsm_update_rename_array { |
505 | enum imsm_update_type type; | |
506 | __u8 name[MAX_RAID_SERIAL_LEN]; | |
507 | int dev_idx; | |
508 | }; | |
509 | ||
1a64be56 | 510 | struct imsm_update_add_remove_disk { |
43dad3d6 DW |
511 | enum imsm_update_type type; |
512 | }; | |
513 | ||
88654014 LM |
514 | static const char *_sys_dev_type[] = { |
515 | [SYS_DEV_UNKNOWN] = "Unknown", | |
516 | [SYS_DEV_SAS] = "SAS", | |
614902f6 | 517 | [SYS_DEV_SATA] = "SATA", |
60f0f54d PB |
518 | [SYS_DEV_NVME] = "NVMe", |
519 | [SYS_DEV_VMD] = "VMD" | |
88654014 LM |
520 | }; |
521 | ||
522 | const char *get_sys_dev_type(enum sys_dev_type type) | |
523 | { | |
524 | if (type >= SYS_DEV_MAX) | |
525 | type = SYS_DEV_UNKNOWN; | |
526 | ||
527 | return _sys_dev_type[type]; | |
528 | } | |
529 | ||
530 | static struct intel_hba * alloc_intel_hba(struct sys_dev *device) | |
531 | { | |
503975b9 N |
532 | struct intel_hba *result = xmalloc(sizeof(*result)); |
533 | ||
534 | result->type = device->type; | |
535 | result->path = xstrdup(device->path); | |
536 | result->next = NULL; | |
537 | if (result->path && (result->pci_id = strrchr(result->path, '/')) != NULL) | |
538 | result->pci_id++; | |
539 | ||
88654014 LM |
540 | return result; |
541 | } | |
542 | ||
543 | static struct intel_hba * find_intel_hba(struct intel_hba *hba, struct sys_dev *device) | |
544 | { | |
594dc1b8 JS |
545 | struct intel_hba *result; |
546 | ||
88654014 LM |
547 | for (result = hba; result; result = result->next) { |
548 | if (result->type == device->type && strcmp(result->path, device->path) == 0) | |
549 | break; | |
550 | } | |
551 | return result; | |
552 | } | |
553 | ||
b4cf4cba | 554 | static int attach_hba_to_super(struct intel_super *super, struct sys_dev *device) |
88654014 LM |
555 | { |
556 | struct intel_hba *hba; | |
557 | ||
558 | /* check if disk attached to Intel HBA */ | |
559 | hba = find_intel_hba(super->hba, device); | |
560 | if (hba != NULL) | |
561 | return 1; | |
562 | /* Check if HBA is already attached to super */ | |
563 | if (super->hba == NULL) { | |
564 | super->hba = alloc_intel_hba(device); | |
565 | return 1; | |
6b781d33 AP |
566 | } |
567 | ||
568 | hba = super->hba; | |
569 | /* Intel metadata allows for all disks attached to the same type HBA. | |
614902f6 | 570 | * Do not support HBA types mixing |
6b781d33 AP |
571 | */ |
572 | if (device->type != hba->type) | |
88654014 | 573 | return 2; |
6b781d33 AP |
574 | |
575 | /* Multiple same type HBAs can be used if they share the same OROM */ | |
576 | const struct imsm_orom *device_orom = get_orom_by_device_id(device->dev_id); | |
577 | ||
578 | if (device_orom != super->orom) | |
579 | return 2; | |
580 | ||
581 | while (hba->next) | |
582 | hba = hba->next; | |
583 | ||
584 | hba->next = alloc_intel_hba(device); | |
585 | return 1; | |
88654014 LM |
586 | } |
587 | ||
588 | static struct sys_dev* find_disk_attached_hba(int fd, const char *devname) | |
589 | { | |
9bc4ae77 | 590 | struct sys_dev *list, *elem; |
88654014 LM |
591 | char *disk_path; |
592 | ||
593 | if ((list = find_intel_devices()) == NULL) | |
594 | return 0; | |
595 | ||
596 | if (fd < 0) | |
597 | disk_path = (char *) devname; | |
598 | else | |
599 | disk_path = diskfd_to_devpath(fd); | |
600 | ||
9bc4ae77 | 601 | if (!disk_path) |
88654014 | 602 | return 0; |
88654014 | 603 | |
9bc4ae77 N |
604 | for (elem = list; elem; elem = elem->next) |
605 | if (path_attached_to_hba(disk_path, elem->path)) | |
88654014 | 606 | return elem; |
9bc4ae77 | 607 | |
88654014 LM |
608 | if (disk_path != devname) |
609 | free(disk_path); | |
88654014 LM |
610 | |
611 | return NULL; | |
612 | } | |
613 | ||
d424212e N |
614 | static int find_intel_hba_capability(int fd, struct intel_super *super, |
615 | char *devname); | |
f2f5c343 | 616 | |
cdddbdbc DW |
617 | static struct supertype *match_metadata_desc_imsm(char *arg) |
618 | { | |
619 | struct supertype *st; | |
620 | ||
621 | if (strcmp(arg, "imsm") != 0 && | |
622 | strcmp(arg, "default") != 0 | |
623 | ) | |
624 | return NULL; | |
625 | ||
503975b9 | 626 | st = xcalloc(1, sizeof(*st)); |
cdddbdbc DW |
627 | st->ss = &super_imsm; |
628 | st->max_devs = IMSM_MAX_DEVICES; | |
629 | st->minor_version = 0; | |
630 | st->sb = NULL; | |
631 | return st; | |
632 | } | |
633 | ||
0e600426 | 634 | #ifndef MDASSEMBLE |
cdddbdbc DW |
635 | static __u8 *get_imsm_version(struct imsm_super *mpb) |
636 | { | |
637 | return &mpb->sig[MPB_SIG_LEN]; | |
638 | } | |
9e2d750d | 639 | #endif |
cdddbdbc | 640 | |
949c47a0 DW |
641 | /* retrieve a disk directly from the anchor when the anchor is known to be |
642 | * up-to-date, currently only at load time | |
643 | */ | |
644 | static struct imsm_disk *__get_imsm_disk(struct imsm_super *mpb, __u8 index) | |
cdddbdbc | 645 | { |
949c47a0 | 646 | if (index >= mpb->num_disks) |
cdddbdbc DW |
647 | return NULL; |
648 | return &mpb->disk[index]; | |
649 | } | |
650 | ||
95d07a2c LM |
651 | /* retrieve the disk description based on a index of the disk |
652 | * in the sub-array | |
653 | */ | |
654 | static struct dl *get_imsm_dl_disk(struct intel_super *super, __u8 index) | |
949c47a0 | 655 | { |
b9f594fe DW |
656 | struct dl *d; |
657 | ||
658 | for (d = super->disks; d; d = d->next) | |
659 | if (d->index == index) | |
95d07a2c LM |
660 | return d; |
661 | ||
662 | return NULL; | |
663 | } | |
664 | /* retrieve a disk from the parsed metadata */ | |
665 | static struct imsm_disk *get_imsm_disk(struct intel_super *super, __u8 index) | |
666 | { | |
667 | struct dl *dl; | |
668 | ||
669 | dl = get_imsm_dl_disk(super, index); | |
670 | if (dl) | |
671 | return &dl->disk; | |
672 | ||
b9f594fe | 673 | return NULL; |
949c47a0 DW |
674 | } |
675 | ||
676 | /* generate a checksum directly from the anchor when the anchor is known to be | |
677 | * up-to-date, currently only at load or write_super after coalescing | |
678 | */ | |
679 | static __u32 __gen_imsm_checksum(struct imsm_super *mpb) | |
cdddbdbc DW |
680 | { |
681 | __u32 end = mpb->mpb_size / sizeof(end); | |
682 | __u32 *p = (__u32 *) mpb; | |
683 | __u32 sum = 0; | |
684 | ||
5d500228 N |
685 | while (end--) { |
686 | sum += __le32_to_cpu(*p); | |
97f734fd N |
687 | p++; |
688 | } | |
cdddbdbc | 689 | |
5d500228 | 690 | return sum - __le32_to_cpu(mpb->check_sum); |
cdddbdbc DW |
691 | } |
692 | ||
a965f303 DW |
693 | static size_t sizeof_imsm_map(struct imsm_map *map) |
694 | { | |
695 | return sizeof(struct imsm_map) + sizeof(__u32) * (map->num_members - 1); | |
696 | } | |
697 | ||
698 | struct imsm_map *get_imsm_map(struct imsm_dev *dev, int second_map) | |
cdddbdbc | 699 | { |
5e7b0330 AK |
700 | /* A device can have 2 maps if it is in the middle of a migration. |
701 | * If second_map is: | |
238c0a71 AK |
702 | * MAP_0 - we return the first map |
703 | * MAP_1 - we return the second map if it exists, else NULL | |
704 | * MAP_X - we return the second map if it exists, else the first | |
5e7b0330 | 705 | */ |
a965f303 | 706 | struct imsm_map *map = &dev->vol.map[0]; |
9535fc47 | 707 | struct imsm_map *map2 = NULL; |
a965f303 | 708 | |
9535fc47 AK |
709 | if (dev->vol.migr_state) |
710 | map2 = (void *)map + sizeof_imsm_map(map); | |
a965f303 | 711 | |
9535fc47 | 712 | switch (second_map) { |
3b451610 | 713 | case MAP_0: |
9535fc47 | 714 | break; |
3b451610 | 715 | case MAP_1: |
9535fc47 AK |
716 | map = map2; |
717 | break; | |
238c0a71 | 718 | case MAP_X: |
9535fc47 AK |
719 | if (map2) |
720 | map = map2; | |
721 | break; | |
9535fc47 AK |
722 | default: |
723 | map = NULL; | |
724 | } | |
725 | return map; | |
5e7b0330 | 726 | |
a965f303 | 727 | } |
cdddbdbc | 728 | |
3393c6af DW |
729 | /* return the size of the device. |
730 | * migr_state increases the returned size if map[0] were to be duplicated | |
731 | */ | |
732 | static size_t sizeof_imsm_dev(struct imsm_dev *dev, int migr_state) | |
a965f303 DW |
733 | { |
734 | size_t size = sizeof(*dev) - sizeof(struct imsm_map) + | |
238c0a71 | 735 | sizeof_imsm_map(get_imsm_map(dev, MAP_0)); |
cdddbdbc DW |
736 | |
737 | /* migrating means an additional map */ | |
a965f303 | 738 | if (dev->vol.migr_state) |
238c0a71 | 739 | size += sizeof_imsm_map(get_imsm_map(dev, MAP_1)); |
3393c6af | 740 | else if (migr_state) |
238c0a71 | 741 | size += sizeof_imsm_map(get_imsm_map(dev, MAP_0)); |
cdddbdbc DW |
742 | |
743 | return size; | |
744 | } | |
745 | ||
54c2c1ea DW |
746 | #ifndef MDASSEMBLE |
747 | /* retrieve disk serial number list from a metadata update */ | |
748 | static struct disk_info *get_disk_info(struct imsm_update_create_array *update) | |
749 | { | |
750 | void *u = update; | |
751 | struct disk_info *inf; | |
752 | ||
753 | inf = u + sizeof(*update) - sizeof(struct imsm_dev) + | |
754 | sizeof_imsm_dev(&update->dev, 0); | |
755 | ||
756 | return inf; | |
757 | } | |
758 | #endif | |
759 | ||
949c47a0 | 760 | static struct imsm_dev *__get_imsm_dev(struct imsm_super *mpb, __u8 index) |
cdddbdbc DW |
761 | { |
762 | int offset; | |
763 | int i; | |
764 | void *_mpb = mpb; | |
765 | ||
949c47a0 | 766 | if (index >= mpb->num_raid_devs) |
cdddbdbc DW |
767 | return NULL; |
768 | ||
769 | /* devices start after all disks */ | |
770 | offset = ((void *) &mpb->disk[mpb->num_disks]) - _mpb; | |
771 | ||
772 | for (i = 0; i <= index; i++) | |
773 | if (i == index) | |
774 | return _mpb + offset; | |
775 | else | |
3393c6af | 776 | offset += sizeof_imsm_dev(_mpb + offset, 0); |
cdddbdbc DW |
777 | |
778 | return NULL; | |
779 | } | |
780 | ||
949c47a0 DW |
781 | static struct imsm_dev *get_imsm_dev(struct intel_super *super, __u8 index) |
782 | { | |
ba2de7ba DW |
783 | struct intel_dev *dv; |
784 | ||
949c47a0 DW |
785 | if (index >= super->anchor->num_raid_devs) |
786 | return NULL; | |
ba2de7ba DW |
787 | for (dv = super->devlist; dv; dv = dv->next) |
788 | if (dv->index == index) | |
789 | return dv->dev; | |
790 | return NULL; | |
949c47a0 DW |
791 | } |
792 | ||
8d67477f TM |
793 | static inline unsigned long long __le48_to_cpu(const struct bbm_log_block_addr |
794 | *addr) | |
795 | { | |
796 | return ((((__u64)__le32_to_cpu(addr->dw1)) << 16) | | |
797 | __le16_to_cpu(addr->w1)); | |
798 | } | |
799 | ||
800 | static inline struct bbm_log_block_addr __cpu_to_le48(unsigned long long sec) | |
801 | { | |
802 | struct bbm_log_block_addr addr; | |
803 | ||
804 | addr.w1 = __cpu_to_le16((__u16)(sec & 0xffff)); | |
805 | addr.dw1 = __cpu_to_le32((__u32)(sec >> 16) & 0xffffffff); | |
806 | return addr; | |
807 | } | |
808 | ||
809 | #ifndef MDASSEMBLE | |
810 | /* get size of the bbm log */ | |
811 | static __u32 get_imsm_bbm_log_size(struct bbm_log *log) | |
812 | { | |
813 | if (!log || log->entry_count == 0) | |
814 | return 0; | |
815 | ||
816 | return sizeof(log->signature) + | |
817 | sizeof(log->entry_count) + | |
818 | log->entry_count * sizeof(struct bbm_log_entry); | |
819 | } | |
820 | #endif /* MDASSEMBLE */ | |
821 | ||
822 | /* allocate and load BBM log from metadata */ | |
823 | static int load_bbm_log(struct intel_super *super) | |
824 | { | |
825 | struct imsm_super *mpb = super->anchor; | |
826 | __u32 bbm_log_size = __le32_to_cpu(mpb->bbm_log_size); | |
827 | ||
828 | super->bbm_log = xcalloc(1, sizeof(struct bbm_log)); | |
829 | if (!super->bbm_log) | |
830 | return 1; | |
831 | ||
832 | if (bbm_log_size) { | |
833 | struct bbm_log *log = (void *)mpb + | |
834 | __le32_to_cpu(mpb->mpb_size) - bbm_log_size; | |
835 | ||
836 | __u32 entry_count; | |
837 | ||
838 | if (bbm_log_size < sizeof(log->signature) + | |
839 | sizeof(log->entry_count)) | |
840 | return 2; | |
841 | ||
842 | entry_count = __le32_to_cpu(log->entry_count); | |
843 | if ((__le32_to_cpu(log->signature) != BBM_LOG_SIGNATURE) || | |
844 | (entry_count > BBM_LOG_MAX_ENTRIES)) | |
845 | return 3; | |
846 | ||
847 | if (bbm_log_size != | |
848 | sizeof(log->signature) + sizeof(log->entry_count) + | |
849 | entry_count * sizeof(struct bbm_log_entry)) | |
850 | return 4; | |
851 | ||
852 | memcpy(super->bbm_log, log, bbm_log_size); | |
853 | } else { | |
854 | super->bbm_log->signature = __cpu_to_le32(BBM_LOG_SIGNATURE); | |
855 | super->bbm_log->entry_count = 0; | |
856 | } | |
857 | ||
858 | return 0; | |
859 | } | |
860 | ||
98130f40 AK |
861 | /* |
862 | * for second_map: | |
238c0a71 AK |
863 | * == MAP_0 get first map |
864 | * == MAP_1 get second map | |
865 | * == MAP_X than get map according to the current migr_state | |
98130f40 AK |
866 | */ |
867 | static __u32 get_imsm_ord_tbl_ent(struct imsm_dev *dev, | |
868 | int slot, | |
869 | int second_map) | |
7eef0453 DW |
870 | { |
871 | struct imsm_map *map; | |
872 | ||
5e7b0330 | 873 | map = get_imsm_map(dev, second_map); |
7eef0453 | 874 | |
ff077194 DW |
875 | /* top byte identifies disk under rebuild */ |
876 | return __le32_to_cpu(map->disk_ord_tbl[slot]); | |
877 | } | |
878 | ||
879 | #define ord_to_idx(ord) (((ord) << 8) >> 8) | |
98130f40 | 880 | static __u32 get_imsm_disk_idx(struct imsm_dev *dev, int slot, int second_map) |
ff077194 | 881 | { |
98130f40 | 882 | __u32 ord = get_imsm_ord_tbl_ent(dev, slot, second_map); |
ff077194 DW |
883 | |
884 | return ord_to_idx(ord); | |
7eef0453 DW |
885 | } |
886 | ||
be73972f DW |
887 | static void set_imsm_ord_tbl_ent(struct imsm_map *map, int slot, __u32 ord) |
888 | { | |
889 | map->disk_ord_tbl[slot] = __cpu_to_le32(ord); | |
890 | } | |
891 | ||
f21e18ca | 892 | static int get_imsm_disk_slot(struct imsm_map *map, unsigned idx) |
620b1713 DW |
893 | { |
894 | int slot; | |
895 | __u32 ord; | |
896 | ||
897 | for (slot = 0; slot < map->num_members; slot++) { | |
898 | ord = __le32_to_cpu(map->disk_ord_tbl[slot]); | |
899 | if (ord_to_idx(ord) == idx) | |
900 | return slot; | |
901 | } | |
902 | ||
903 | return -1; | |
904 | } | |
905 | ||
cdddbdbc DW |
906 | static int get_imsm_raid_level(struct imsm_map *map) |
907 | { | |
908 | if (map->raid_level == 1) { | |
909 | if (map->num_members == 2) | |
910 | return 1; | |
911 | else | |
912 | return 10; | |
913 | } | |
914 | ||
915 | return map->raid_level; | |
916 | } | |
917 | ||
c2c087e6 DW |
918 | static int cmp_extent(const void *av, const void *bv) |
919 | { | |
920 | const struct extent *a = av; | |
921 | const struct extent *b = bv; | |
922 | if (a->start < b->start) | |
923 | return -1; | |
924 | if (a->start > b->start) | |
925 | return 1; | |
926 | return 0; | |
927 | } | |
928 | ||
0dcecb2e | 929 | static int count_memberships(struct dl *dl, struct intel_super *super) |
c2c087e6 | 930 | { |
c2c087e6 | 931 | int memberships = 0; |
620b1713 | 932 | int i; |
c2c087e6 | 933 | |
949c47a0 DW |
934 | for (i = 0; i < super->anchor->num_raid_devs; i++) { |
935 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
238c0a71 | 936 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
c2c087e6 | 937 | |
620b1713 DW |
938 | if (get_imsm_disk_slot(map, dl->index) >= 0) |
939 | memberships++; | |
c2c087e6 | 940 | } |
0dcecb2e DW |
941 | |
942 | return memberships; | |
943 | } | |
944 | ||
b81221b7 CA |
945 | static __u32 imsm_min_reserved_sectors(struct intel_super *super); |
946 | ||
5551b113 CA |
947 | static int split_ull(unsigned long long n, __u32 *lo, __u32 *hi) |
948 | { | |
949 | if (lo == 0 || hi == 0) | |
950 | return 1; | |
951 | *lo = __le32_to_cpu((unsigned)n); | |
952 | *hi = __le32_to_cpu((unsigned)(n >> 32)); | |
953 | return 0; | |
954 | } | |
955 | ||
956 | static unsigned long long join_u32(__u32 lo, __u32 hi) | |
957 | { | |
958 | return (unsigned long long)__le32_to_cpu(lo) | | |
959 | (((unsigned long long)__le32_to_cpu(hi)) << 32); | |
960 | } | |
961 | ||
962 | static unsigned long long total_blocks(struct imsm_disk *disk) | |
963 | { | |
964 | if (disk == NULL) | |
965 | return 0; | |
966 | return join_u32(disk->total_blocks_lo, disk->total_blocks_hi); | |
967 | } | |
968 | ||
969 | static unsigned long long pba_of_lba0(struct imsm_map *map) | |
970 | { | |
971 | if (map == NULL) | |
972 | return 0; | |
973 | return join_u32(map->pba_of_lba0_lo, map->pba_of_lba0_hi); | |
974 | } | |
975 | ||
976 | static unsigned long long blocks_per_member(struct imsm_map *map) | |
977 | { | |
978 | if (map == NULL) | |
979 | return 0; | |
980 | return join_u32(map->blocks_per_member_lo, map->blocks_per_member_hi); | |
981 | } | |
982 | ||
983 | static unsigned long long num_data_stripes(struct imsm_map *map) | |
984 | { | |
985 | if (map == NULL) | |
986 | return 0; | |
987 | return join_u32(map->num_data_stripes_lo, map->num_data_stripes_hi); | |
988 | } | |
989 | ||
990 | static void set_total_blocks(struct imsm_disk *disk, unsigned long long n) | |
991 | { | |
992 | split_ull(n, &disk->total_blocks_lo, &disk->total_blocks_hi); | |
993 | } | |
994 | ||
995 | static void set_pba_of_lba0(struct imsm_map *map, unsigned long long n) | |
996 | { | |
997 | split_ull(n, &map->pba_of_lba0_lo, &map->pba_of_lba0_hi); | |
998 | } | |
999 | ||
1000 | static void set_blocks_per_member(struct imsm_map *map, unsigned long long n) | |
1001 | { | |
1002 | split_ull(n, &map->blocks_per_member_lo, &map->blocks_per_member_hi); | |
1003 | } | |
1004 | ||
1005 | static void set_num_data_stripes(struct imsm_map *map, unsigned long long n) | |
1006 | { | |
1007 | split_ull(n, &map->num_data_stripes_lo, &map->num_data_stripes_hi); | |
1008 | } | |
1009 | ||
0dcecb2e DW |
1010 | static struct extent *get_extents(struct intel_super *super, struct dl *dl) |
1011 | { | |
1012 | /* find a list of used extents on the given physical device */ | |
1013 | struct extent *rv, *e; | |
620b1713 | 1014 | int i; |
0dcecb2e | 1015 | int memberships = count_memberships(dl, super); |
b276dd33 DW |
1016 | __u32 reservation; |
1017 | ||
1018 | /* trim the reserved area for spares, so they can join any array | |
1019 | * regardless of whether the OROM has assigned sectors from the | |
1020 | * IMSM_RESERVED_SECTORS region | |
1021 | */ | |
1022 | if (dl->index == -1) | |
b81221b7 | 1023 | reservation = imsm_min_reserved_sectors(super); |
b276dd33 DW |
1024 | else |
1025 | reservation = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
0dcecb2e | 1026 | |
503975b9 | 1027 | rv = xcalloc(sizeof(struct extent), (memberships + 1)); |
c2c087e6 DW |
1028 | e = rv; |
1029 | ||
949c47a0 DW |
1030 | for (i = 0; i < super->anchor->num_raid_devs; i++) { |
1031 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
238c0a71 | 1032 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
c2c087e6 | 1033 | |
620b1713 | 1034 | if (get_imsm_disk_slot(map, dl->index) >= 0) { |
5551b113 CA |
1035 | e->start = pba_of_lba0(map); |
1036 | e->size = blocks_per_member(map); | |
620b1713 | 1037 | e++; |
c2c087e6 DW |
1038 | } |
1039 | } | |
1040 | qsort(rv, memberships, sizeof(*rv), cmp_extent); | |
1041 | ||
1011e834 | 1042 | /* determine the start of the metadata |
14e8215b DW |
1043 | * when no raid devices are defined use the default |
1044 | * ...otherwise allow the metadata to truncate the value | |
1045 | * as is the case with older versions of imsm | |
1046 | */ | |
1047 | if (memberships) { | |
1048 | struct extent *last = &rv[memberships - 1]; | |
5551b113 | 1049 | unsigned long long remainder; |
14e8215b | 1050 | |
5551b113 | 1051 | remainder = total_blocks(&dl->disk) - (last->start + last->size); |
dda5855f DW |
1052 | /* round down to 1k block to satisfy precision of the kernel |
1053 | * 'size' interface | |
1054 | */ | |
1055 | remainder &= ~1UL; | |
1056 | /* make sure remainder is still sane */ | |
f21e18ca | 1057 | if (remainder < (unsigned)ROUND_UP(super->len, 512) >> 9) |
dda5855f | 1058 | remainder = ROUND_UP(super->len, 512) >> 9; |
14e8215b DW |
1059 | if (reservation > remainder) |
1060 | reservation = remainder; | |
1061 | } | |
5551b113 | 1062 | e->start = total_blocks(&dl->disk) - reservation; |
c2c087e6 DW |
1063 | e->size = 0; |
1064 | return rv; | |
1065 | } | |
1066 | ||
14e8215b DW |
1067 | /* try to determine how much space is reserved for metadata from |
1068 | * the last get_extents() entry, otherwise fallback to the | |
1069 | * default | |
1070 | */ | |
1071 | static __u32 imsm_reserved_sectors(struct intel_super *super, struct dl *dl) | |
1072 | { | |
1073 | struct extent *e; | |
1074 | int i; | |
1075 | __u32 rv; | |
1076 | ||
1077 | /* for spares just return a minimal reservation which will grow | |
1078 | * once the spare is picked up by an array | |
1079 | */ | |
1080 | if (dl->index == -1) | |
1081 | return MPB_SECTOR_CNT; | |
1082 | ||
1083 | e = get_extents(super, dl); | |
1084 | if (!e) | |
1085 | return MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
1086 | ||
1087 | /* scroll to last entry */ | |
1088 | for (i = 0; e[i].size; i++) | |
1089 | continue; | |
1090 | ||
5551b113 | 1091 | rv = total_blocks(&dl->disk) - e[i].start; |
14e8215b DW |
1092 | |
1093 | free(e); | |
1094 | ||
1095 | return rv; | |
1096 | } | |
1097 | ||
25ed7e59 DW |
1098 | static int is_spare(struct imsm_disk *disk) |
1099 | { | |
1100 | return (disk->status & SPARE_DISK) == SPARE_DISK; | |
1101 | } | |
1102 | ||
1103 | static int is_configured(struct imsm_disk *disk) | |
1104 | { | |
1105 | return (disk->status & CONFIGURED_DISK) == CONFIGURED_DISK; | |
1106 | } | |
1107 | ||
1108 | static int is_failed(struct imsm_disk *disk) | |
1109 | { | |
1110 | return (disk->status & FAILED_DISK) == FAILED_DISK; | |
1111 | } | |
1112 | ||
b81221b7 CA |
1113 | /* try to determine how much space is reserved for metadata from |
1114 | * the last get_extents() entry on the smallest active disk, | |
1115 | * otherwise fallback to the default | |
1116 | */ | |
1117 | static __u32 imsm_min_reserved_sectors(struct intel_super *super) | |
1118 | { | |
1119 | struct extent *e; | |
1120 | int i; | |
5551b113 CA |
1121 | unsigned long long min_active; |
1122 | __u32 remainder; | |
b81221b7 CA |
1123 | __u32 rv = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; |
1124 | struct dl *dl, *dl_min = NULL; | |
1125 | ||
1126 | if (!super) | |
1127 | return rv; | |
1128 | ||
1129 | min_active = 0; | |
1130 | for (dl = super->disks; dl; dl = dl->next) { | |
1131 | if (dl->index < 0) | |
1132 | continue; | |
5551b113 CA |
1133 | unsigned long long blocks = total_blocks(&dl->disk); |
1134 | if (blocks < min_active || min_active == 0) { | |
b81221b7 | 1135 | dl_min = dl; |
5551b113 | 1136 | min_active = blocks; |
b81221b7 CA |
1137 | } |
1138 | } | |
1139 | if (!dl_min) | |
1140 | return rv; | |
1141 | ||
1142 | /* find last lba used by subarrays on the smallest active disk */ | |
1143 | e = get_extents(super, dl_min); | |
1144 | if (!e) | |
1145 | return rv; | |
1146 | for (i = 0; e[i].size; i++) | |
1147 | continue; | |
1148 | ||
1149 | remainder = min_active - e[i].start; | |
1150 | free(e); | |
1151 | ||
1152 | /* to give priority to recovery we should not require full | |
1153 | IMSM_RESERVED_SECTORS from the spare */ | |
1154 | rv = MPB_SECTOR_CNT + NUM_BLOCKS_DIRTY_STRIPE_REGION; | |
1155 | ||
1156 | /* if real reservation is smaller use that value */ | |
1157 | return (remainder < rv) ? remainder : rv; | |
1158 | } | |
1159 | ||
80e7f8c3 AC |
1160 | /* Return minimum size of a spare that can be used in this array*/ |
1161 | static unsigned long long min_acceptable_spare_size_imsm(struct supertype *st) | |
1162 | { | |
1163 | struct intel_super *super = st->sb; | |
1164 | struct dl *dl; | |
1165 | struct extent *e; | |
1166 | int i; | |
1167 | unsigned long long rv = 0; | |
1168 | ||
1169 | if (!super) | |
1170 | return rv; | |
1171 | /* find first active disk in array */ | |
1172 | dl = super->disks; | |
1173 | while (dl && (is_failed(&dl->disk) || dl->index == -1)) | |
1174 | dl = dl->next; | |
1175 | if (!dl) | |
1176 | return rv; | |
1177 | /* find last lba used by subarrays */ | |
1178 | e = get_extents(super, dl); | |
1179 | if (!e) | |
1180 | return rv; | |
1181 | for (i = 0; e[i].size; i++) | |
1182 | continue; | |
1183 | if (i > 0) | |
1184 | rv = e[i-1].start + e[i-1].size; | |
1185 | free(e); | |
b81221b7 | 1186 | |
80e7f8c3 | 1187 | /* add the amount of space needed for metadata */ |
b81221b7 CA |
1188 | rv = rv + imsm_min_reserved_sectors(super); |
1189 | ||
80e7f8c3 AC |
1190 | return rv * 512; |
1191 | } | |
1192 | ||
d1e02575 AK |
1193 | static int is_gen_migration(struct imsm_dev *dev); |
1194 | ||
f36a9ecd PB |
1195 | #define IMSM_4K_DIV 8 |
1196 | ||
1799c9e8 | 1197 | #ifndef MDASSEMBLE |
c47b0ff6 AK |
1198 | static __u64 blocks_per_migr_unit(struct intel_super *super, |
1199 | struct imsm_dev *dev); | |
1e5c6983 | 1200 | |
c47b0ff6 AK |
1201 | static void print_imsm_dev(struct intel_super *super, |
1202 | struct imsm_dev *dev, | |
1203 | char *uuid, | |
1204 | int disk_idx) | |
cdddbdbc DW |
1205 | { |
1206 | __u64 sz; | |
0d80bb2f | 1207 | int slot, i; |
238c0a71 AK |
1208 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
1209 | struct imsm_map *map2 = get_imsm_map(dev, MAP_1); | |
b10b37b8 | 1210 | __u32 ord; |
cdddbdbc DW |
1211 | |
1212 | printf("\n"); | |
1e7bc0ed | 1213 | printf("[%.16s]:\n", dev->volume); |
44470971 | 1214 | printf(" UUID : %s\n", uuid); |
dd8bcb3b AK |
1215 | printf(" RAID Level : %d", get_imsm_raid_level(map)); |
1216 | if (map2) | |
1217 | printf(" <-- %d", get_imsm_raid_level(map2)); | |
1218 | printf("\n"); | |
1219 | printf(" Members : %d", map->num_members); | |
1220 | if (map2) | |
1221 | printf(" <-- %d", map2->num_members); | |
1222 | printf("\n"); | |
0d80bb2f DW |
1223 | printf(" Slots : ["); |
1224 | for (i = 0; i < map->num_members; i++) { | |
238c0a71 | 1225 | ord = get_imsm_ord_tbl_ent(dev, i, MAP_0); |
0d80bb2f DW |
1226 | printf("%s", ord & IMSM_ORD_REBUILD ? "_" : "U"); |
1227 | } | |
dd8bcb3b AK |
1228 | printf("]"); |
1229 | if (map2) { | |
1230 | printf(" <-- ["); | |
1231 | for (i = 0; i < map2->num_members; i++) { | |
238c0a71 | 1232 | ord = get_imsm_ord_tbl_ent(dev, i, MAP_1); |
dd8bcb3b AK |
1233 | printf("%s", ord & IMSM_ORD_REBUILD ? "_" : "U"); |
1234 | } | |
1235 | printf("]"); | |
1236 | } | |
1237 | printf("\n"); | |
7095bccb AK |
1238 | printf(" Failed disk : "); |
1239 | if (map->failed_disk_num == 0xff) | |
1240 | printf("none"); | |
1241 | else | |
1242 | printf("%i", map->failed_disk_num); | |
1243 | printf("\n"); | |
620b1713 DW |
1244 | slot = get_imsm_disk_slot(map, disk_idx); |
1245 | if (slot >= 0) { | |
238c0a71 | 1246 | ord = get_imsm_ord_tbl_ent(dev, slot, MAP_X); |
b10b37b8 DW |
1247 | printf(" This Slot : %d%s\n", slot, |
1248 | ord & IMSM_ORD_REBUILD ? " (out-of-sync)" : ""); | |
1249 | } else | |
cdddbdbc DW |
1250 | printf(" This Slot : ?\n"); |
1251 | sz = __le32_to_cpu(dev->size_high); | |
1252 | sz <<= 32; | |
1253 | sz += __le32_to_cpu(dev->size_low); | |
1254 | printf(" Array Size : %llu%s\n", (unsigned long long)sz, | |
1255 | human_size(sz * 512)); | |
5551b113 | 1256 | sz = blocks_per_member(map); |
cdddbdbc DW |
1257 | printf(" Per Dev Size : %llu%s\n", (unsigned long long)sz, |
1258 | human_size(sz * 512)); | |
5551b113 CA |
1259 | printf(" Sector Offset : %llu\n", |
1260 | pba_of_lba0(map)); | |
1261 | printf(" Num Stripes : %llu\n", | |
1262 | num_data_stripes(map)); | |
dd8bcb3b | 1263 | printf(" Chunk Size : %u KiB", |
cdddbdbc | 1264 | __le16_to_cpu(map->blocks_per_strip) / 2); |
dd8bcb3b AK |
1265 | if (map2) |
1266 | printf(" <-- %u KiB", | |
1267 | __le16_to_cpu(map2->blocks_per_strip) / 2); | |
1268 | printf("\n"); | |
cdddbdbc | 1269 | printf(" Reserved : %d\n", __le32_to_cpu(dev->reserved_blocks)); |
8655a7b1 | 1270 | printf(" Migrate State : "); |
1484e727 DW |
1271 | if (dev->vol.migr_state) { |
1272 | if (migr_type(dev) == MIGR_INIT) | |
8655a7b1 | 1273 | printf("initialize\n"); |
1484e727 | 1274 | else if (migr_type(dev) == MIGR_REBUILD) |
8655a7b1 | 1275 | printf("rebuild\n"); |
1484e727 | 1276 | else if (migr_type(dev) == MIGR_VERIFY) |
8655a7b1 | 1277 | printf("check\n"); |
1484e727 | 1278 | else if (migr_type(dev) == MIGR_GEN_MIGR) |
8655a7b1 | 1279 | printf("general migration\n"); |
1484e727 | 1280 | else if (migr_type(dev) == MIGR_STATE_CHANGE) |
8655a7b1 | 1281 | printf("state change\n"); |
1484e727 | 1282 | else if (migr_type(dev) == MIGR_REPAIR) |
8655a7b1 | 1283 | printf("repair\n"); |
1484e727 | 1284 | else |
8655a7b1 DW |
1285 | printf("<unknown:%d>\n", migr_type(dev)); |
1286 | } else | |
1287 | printf("idle\n"); | |
3393c6af DW |
1288 | printf(" Map State : %s", map_state_str[map->map_state]); |
1289 | if (dev->vol.migr_state) { | |
238c0a71 | 1290 | struct imsm_map *map = get_imsm_map(dev, MAP_1); |
1e5c6983 | 1291 | |
b10b37b8 | 1292 | printf(" <-- %s", map_state_str[map->map_state]); |
464d40e8 LD |
1293 | printf("\n Checkpoint : %u ", |
1294 | __le32_to_cpu(dev->vol.curr_migr_unit)); | |
089f9d79 | 1295 | if (is_gen_migration(dev) && (slot > 1 || slot < 0)) |
464d40e8 LD |
1296 | printf("(N/A)"); |
1297 | else | |
1298 | printf("(%llu)", (unsigned long long) | |
1299 | blocks_per_migr_unit(super, dev)); | |
3393c6af DW |
1300 | } |
1301 | printf("\n"); | |
cdddbdbc | 1302 | printf(" Dirty State : %s\n", dev->vol.dirty ? "dirty" : "clean"); |
cdddbdbc DW |
1303 | } |
1304 | ||
0ec1f4e8 | 1305 | static void print_imsm_disk(struct imsm_disk *disk, int index, __u32 reserved) |
cdddbdbc | 1306 | { |
1f24f035 | 1307 | char str[MAX_RAID_SERIAL_LEN + 1]; |
cdddbdbc DW |
1308 | __u64 sz; |
1309 | ||
0ec1f4e8 | 1310 | if (index < -1 || !disk) |
e9d82038 DW |
1311 | return; |
1312 | ||
cdddbdbc | 1313 | printf("\n"); |
1f24f035 | 1314 | snprintf(str, MAX_RAID_SERIAL_LEN + 1, "%s", disk->serial); |
0ec1f4e8 DW |
1315 | if (index >= 0) |
1316 | printf(" Disk%02d Serial : %s\n", index, str); | |
1317 | else | |
1318 | printf(" Disk Serial : %s\n", str); | |
25ed7e59 DW |
1319 | printf(" State :%s%s%s\n", is_spare(disk) ? " spare" : "", |
1320 | is_configured(disk) ? " active" : "", | |
1321 | is_failed(disk) ? " failed" : ""); | |
cdddbdbc | 1322 | printf(" Id : %08x\n", __le32_to_cpu(disk->scsi_id)); |
5551b113 | 1323 | sz = total_blocks(disk) - reserved; |
cdddbdbc DW |
1324 | printf(" Usable Size : %llu%s\n", (unsigned long long)sz, |
1325 | human_size(sz * 512)); | |
1326 | } | |
1327 | ||
de44e46f PB |
1328 | void convert_to_4k_imsm_migr_rec(struct intel_super *super) |
1329 | { | |
1330 | struct migr_record *migr_rec = super->migr_rec; | |
1331 | ||
1332 | migr_rec->blocks_per_unit /= IMSM_4K_DIV; | |
1333 | migr_rec->ckpt_area_pba /= IMSM_4K_DIV; | |
1334 | migr_rec->dest_1st_member_lba /= IMSM_4K_DIV; | |
1335 | migr_rec->dest_depth_per_unit /= IMSM_4K_DIV; | |
1336 | split_ull((join_u32(migr_rec->post_migr_vol_cap, | |
1337 | migr_rec->post_migr_vol_cap_hi) / IMSM_4K_DIV), | |
1338 | &migr_rec->post_migr_vol_cap, &migr_rec->post_migr_vol_cap_hi); | |
1339 | } | |
1340 | ||
f36a9ecd PB |
1341 | void convert_to_4k_imsm_disk(struct imsm_disk *disk) |
1342 | { | |
1343 | set_total_blocks(disk, (total_blocks(disk)/IMSM_4K_DIV)); | |
1344 | } | |
1345 | ||
1346 | void convert_to_4k(struct intel_super *super) | |
1347 | { | |
1348 | struct imsm_super *mpb = super->anchor; | |
1349 | struct imsm_disk *disk; | |
1350 | int i; | |
1351 | ||
1352 | for (i = 0; i < mpb->num_disks ; i++) { | |
1353 | disk = __get_imsm_disk(mpb, i); | |
1354 | /* disk */ | |
1355 | convert_to_4k_imsm_disk(disk); | |
1356 | } | |
1357 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
1358 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
1359 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
1360 | /* dev */ | |
1361 | split_ull((join_u32(dev->size_low, dev->size_high)/IMSM_4K_DIV), | |
1362 | &dev->size_low, &dev->size_high); | |
1363 | dev->vol.curr_migr_unit /= IMSM_4K_DIV; | |
1364 | ||
1365 | /* map0 */ | |
1366 | set_blocks_per_member(map, blocks_per_member(map)/IMSM_4K_DIV); | |
1367 | map->blocks_per_strip /= IMSM_4K_DIV; | |
1368 | set_pba_of_lba0(map, pba_of_lba0(map)/IMSM_4K_DIV); | |
1369 | ||
1370 | if (dev->vol.migr_state) { | |
1371 | /* map1 */ | |
1372 | map = get_imsm_map(dev, MAP_1); | |
1373 | set_blocks_per_member(map, | |
1374 | blocks_per_member(map)/IMSM_4K_DIV); | |
1375 | map->blocks_per_strip /= IMSM_4K_DIV; | |
1376 | set_pba_of_lba0(map, pba_of_lba0(map)/IMSM_4K_DIV); | |
1377 | } | |
1378 | } | |
1379 | ||
1380 | mpb->check_sum = __gen_imsm_checksum(mpb); | |
1381 | } | |
1382 | ||
520e69e2 AK |
1383 | void examine_migr_rec_imsm(struct intel_super *super) |
1384 | { | |
1385 | struct migr_record *migr_rec = super->migr_rec; | |
1386 | struct imsm_super *mpb = super->anchor; | |
1387 | int i; | |
1388 | ||
1389 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
1390 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
3136abe5 | 1391 | struct imsm_map *map; |
b4ab44d8 | 1392 | int slot = -1; |
3136abe5 | 1393 | |
520e69e2 AK |
1394 | if (is_gen_migration(dev) == 0) |
1395 | continue; | |
1396 | ||
1397 | printf("\nMigration Record Information:"); | |
3136abe5 | 1398 | |
44bfe6df AK |
1399 | /* first map under migration */ |
1400 | map = get_imsm_map(dev, MAP_0); | |
3136abe5 AK |
1401 | if (map) |
1402 | slot = get_imsm_disk_slot(map, super->disks->index); | |
089f9d79 | 1403 | if (map == NULL || slot > 1 || slot < 0) { |
520e69e2 AK |
1404 | printf(" Empty\n "); |
1405 | printf("Examine one of first two disks in array\n"); | |
1406 | break; | |
1407 | } | |
1408 | printf("\n Status : "); | |
1409 | if (__le32_to_cpu(migr_rec->rec_status) == UNIT_SRC_NORMAL) | |
1410 | printf("Normal\n"); | |
1411 | else | |
1412 | printf("Contains Data\n"); | |
1413 | printf(" Current Unit : %u\n", | |
1414 | __le32_to_cpu(migr_rec->curr_migr_unit)); | |
1415 | printf(" Family : %u\n", | |
1416 | __le32_to_cpu(migr_rec->family_num)); | |
1417 | printf(" Ascending : %u\n", | |
1418 | __le32_to_cpu(migr_rec->ascending_migr)); | |
1419 | printf(" Blocks Per Unit : %u\n", | |
1420 | __le32_to_cpu(migr_rec->blocks_per_unit)); | |
1421 | printf(" Dest. Depth Per Unit : %u\n", | |
1422 | __le32_to_cpu(migr_rec->dest_depth_per_unit)); | |
1423 | printf(" Checkpoint Area pba : %u\n", | |
1424 | __le32_to_cpu(migr_rec->ckpt_area_pba)); | |
1425 | printf(" First member lba : %u\n", | |
1426 | __le32_to_cpu(migr_rec->dest_1st_member_lba)); | |
1427 | printf(" Total Number of Units : %u\n", | |
1428 | __le32_to_cpu(migr_rec->num_migr_units)); | |
1429 | printf(" Size of volume : %u\n", | |
1430 | __le32_to_cpu(migr_rec->post_migr_vol_cap)); | |
1431 | printf(" Expansion space for LBA64 : %u\n", | |
1432 | __le32_to_cpu(migr_rec->post_migr_vol_cap_hi)); | |
1433 | printf(" Record was read from : %u\n", | |
1434 | __le32_to_cpu(migr_rec->ckpt_read_disk_num)); | |
1435 | ||
1436 | break; | |
1437 | } | |
1438 | } | |
9e2d750d | 1439 | #endif /* MDASSEMBLE */ |
f36a9ecd | 1440 | |
de44e46f PB |
1441 | void convert_from_4k_imsm_migr_rec(struct intel_super *super) |
1442 | { | |
1443 | struct migr_record *migr_rec = super->migr_rec; | |
1444 | ||
1445 | migr_rec->blocks_per_unit *= IMSM_4K_DIV; | |
1446 | migr_rec->ckpt_area_pba *= IMSM_4K_DIV; | |
1447 | migr_rec->dest_1st_member_lba *= IMSM_4K_DIV; | |
1448 | migr_rec->dest_depth_per_unit *= IMSM_4K_DIV; | |
1449 | split_ull((join_u32(migr_rec->post_migr_vol_cap, | |
1450 | migr_rec->post_migr_vol_cap_hi) * IMSM_4K_DIV), | |
1451 | &migr_rec->post_migr_vol_cap, | |
1452 | &migr_rec->post_migr_vol_cap_hi); | |
1453 | } | |
1454 | ||
f36a9ecd PB |
1455 | void convert_from_4k(struct intel_super *super) |
1456 | { | |
1457 | struct imsm_super *mpb = super->anchor; | |
1458 | struct imsm_disk *disk; | |
1459 | int i; | |
1460 | ||
1461 | for (i = 0; i < mpb->num_disks ; i++) { | |
1462 | disk = __get_imsm_disk(mpb, i); | |
1463 | /* disk */ | |
1464 | set_total_blocks(disk, (total_blocks(disk)*IMSM_4K_DIV)); | |
1465 | } | |
1466 | ||
1467 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
1468 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
1469 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
1470 | /* dev */ | |
1471 | split_ull((join_u32(dev->size_low, dev->size_high)*IMSM_4K_DIV), | |
1472 | &dev->size_low, &dev->size_high); | |
1473 | dev->vol.curr_migr_unit *= IMSM_4K_DIV; | |
1474 | ||
1475 | /* map0 */ | |
1476 | set_blocks_per_member(map, blocks_per_member(map)*IMSM_4K_DIV); | |
1477 | map->blocks_per_strip *= IMSM_4K_DIV; | |
1478 | set_pba_of_lba0(map, pba_of_lba0(map)*IMSM_4K_DIV); | |
1479 | ||
1480 | if (dev->vol.migr_state) { | |
1481 | /* map1 */ | |
1482 | map = get_imsm_map(dev, MAP_1); | |
1483 | set_blocks_per_member(map, | |
1484 | blocks_per_member(map)*IMSM_4K_DIV); | |
1485 | map->blocks_per_strip *= IMSM_4K_DIV; | |
1486 | set_pba_of_lba0(map, pba_of_lba0(map)*IMSM_4K_DIV); | |
1487 | } | |
1488 | } | |
1489 | ||
1490 | mpb->check_sum = __gen_imsm_checksum(mpb); | |
1491 | } | |
1492 | ||
19482bcc AK |
1493 | /******************************************************************************* |
1494 | * function: imsm_check_attributes | |
1495 | * Description: Function checks if features represented by attributes flags | |
1011e834 | 1496 | * are supported by mdadm. |
19482bcc AK |
1497 | * Parameters: |
1498 | * attributes - Attributes read from metadata | |
1499 | * Returns: | |
1011e834 N |
1500 | * 0 - passed attributes contains unsupported features flags |
1501 | * 1 - all features are supported | |
19482bcc AK |
1502 | ******************************************************************************/ |
1503 | static int imsm_check_attributes(__u32 attributes) | |
1504 | { | |
1505 | int ret_val = 1; | |
418f9b36 N |
1506 | __u32 not_supported = MPB_ATTRIB_SUPPORTED^0xffffffff; |
1507 | ||
1508 | not_supported &= ~MPB_ATTRIB_IGNORED; | |
19482bcc AK |
1509 | |
1510 | not_supported &= attributes; | |
1511 | if (not_supported) { | |
e7b84f9d | 1512 | pr_err("(IMSM): Unsupported attributes : %x\n", |
418f9b36 | 1513 | (unsigned)__le32_to_cpu(not_supported)); |
19482bcc AK |
1514 | if (not_supported & MPB_ATTRIB_CHECKSUM_VERIFY) { |
1515 | dprintf("\t\tMPB_ATTRIB_CHECKSUM_VERIFY \n"); | |
1516 | not_supported ^= MPB_ATTRIB_CHECKSUM_VERIFY; | |
1517 | } | |
1518 | if (not_supported & MPB_ATTRIB_2TB) { | |
1519 | dprintf("\t\tMPB_ATTRIB_2TB\n"); | |
1520 | not_supported ^= MPB_ATTRIB_2TB; | |
1521 | } | |
1522 | if (not_supported & MPB_ATTRIB_RAID0) { | |
1523 | dprintf("\t\tMPB_ATTRIB_RAID0\n"); | |
1524 | not_supported ^= MPB_ATTRIB_RAID0; | |
1525 | } | |
1526 | if (not_supported & MPB_ATTRIB_RAID1) { | |
1527 | dprintf("\t\tMPB_ATTRIB_RAID1\n"); | |
1528 | not_supported ^= MPB_ATTRIB_RAID1; | |
1529 | } | |
1530 | if (not_supported & MPB_ATTRIB_RAID10) { | |
1531 | dprintf("\t\tMPB_ATTRIB_RAID10\n"); | |
1532 | not_supported ^= MPB_ATTRIB_RAID10; | |
1533 | } | |
1534 | if (not_supported & MPB_ATTRIB_RAID1E) { | |
1535 | dprintf("\t\tMPB_ATTRIB_RAID1E\n"); | |
1536 | not_supported ^= MPB_ATTRIB_RAID1E; | |
1537 | } | |
1538 | if (not_supported & MPB_ATTRIB_RAID5) { | |
1539 | dprintf("\t\tMPB_ATTRIB_RAID5\n"); | |
1540 | not_supported ^= MPB_ATTRIB_RAID5; | |
1541 | } | |
1542 | if (not_supported & MPB_ATTRIB_RAIDCNG) { | |
1543 | dprintf("\t\tMPB_ATTRIB_RAIDCNG\n"); | |
1544 | not_supported ^= MPB_ATTRIB_RAIDCNG; | |
1545 | } | |
1546 | if (not_supported & MPB_ATTRIB_BBM) { | |
1547 | dprintf("\t\tMPB_ATTRIB_BBM\n"); | |
1548 | not_supported ^= MPB_ATTRIB_BBM; | |
1549 | } | |
1550 | if (not_supported & MPB_ATTRIB_CHECKSUM_VERIFY) { | |
1551 | dprintf("\t\tMPB_ATTRIB_CHECKSUM_VERIFY (== MPB_ATTRIB_LEGACY)\n"); | |
1552 | not_supported ^= MPB_ATTRIB_CHECKSUM_VERIFY; | |
1553 | } | |
1554 | if (not_supported & MPB_ATTRIB_EXP_STRIPE_SIZE) { | |
1555 | dprintf("\t\tMPB_ATTRIB_EXP_STRIP_SIZE\n"); | |
1556 | not_supported ^= MPB_ATTRIB_EXP_STRIPE_SIZE; | |
1557 | } | |
1558 | if (not_supported & MPB_ATTRIB_2TB_DISK) { | |
1559 | dprintf("\t\tMPB_ATTRIB_2TB_DISK\n"); | |
1560 | not_supported ^= MPB_ATTRIB_2TB_DISK; | |
1561 | } | |
1562 | if (not_supported & MPB_ATTRIB_NEVER_USE2) { | |
1563 | dprintf("\t\tMPB_ATTRIB_NEVER_USE2\n"); | |
1564 | not_supported ^= MPB_ATTRIB_NEVER_USE2; | |
1565 | } | |
1566 | if (not_supported & MPB_ATTRIB_NEVER_USE) { | |
1567 | dprintf("\t\tMPB_ATTRIB_NEVER_USE\n"); | |
1568 | not_supported ^= MPB_ATTRIB_NEVER_USE; | |
1569 | } | |
1570 | ||
1571 | if (not_supported) | |
1ade5cc1 | 1572 | dprintf("(IMSM): Unknown attributes : %x\n", not_supported); |
19482bcc AK |
1573 | |
1574 | ret_val = 0; | |
1575 | } | |
1576 | ||
1577 | return ret_val; | |
1578 | } | |
1579 | ||
9e2d750d | 1580 | #ifndef MDASSEMBLE |
a5d85af7 | 1581 | static void getinfo_super_imsm(struct supertype *st, struct mdinfo *info, char *map); |
44470971 | 1582 | |
cdddbdbc DW |
1583 | static void examine_super_imsm(struct supertype *st, char *homehost) |
1584 | { | |
1585 | struct intel_super *super = st->sb; | |
949c47a0 | 1586 | struct imsm_super *mpb = super->anchor; |
cdddbdbc DW |
1587 | char str[MAX_SIGNATURE_LENGTH]; |
1588 | int i; | |
27fd6274 DW |
1589 | struct mdinfo info; |
1590 | char nbuf[64]; | |
cdddbdbc | 1591 | __u32 sum; |
14e8215b | 1592 | __u32 reserved = imsm_reserved_sectors(super, super->disks); |
94827db3 | 1593 | struct dl *dl; |
27fd6274 | 1594 | |
cdddbdbc DW |
1595 | snprintf(str, MPB_SIG_LEN, "%s", mpb->sig); |
1596 | printf(" Magic : %s\n", str); | |
1597 | snprintf(str, strlen(MPB_VERSION_RAID0), "%s", get_imsm_version(mpb)); | |
1598 | printf(" Version : %s\n", get_imsm_version(mpb)); | |
148acb7b | 1599 | printf(" Orig Family : %08x\n", __le32_to_cpu(mpb->orig_family_num)); |
cdddbdbc DW |
1600 | printf(" Family : %08x\n", __le32_to_cpu(mpb->family_num)); |
1601 | printf(" Generation : %08x\n", __le32_to_cpu(mpb->generation_num)); | |
19482bcc AK |
1602 | printf(" Attributes : "); |
1603 | if (imsm_check_attributes(mpb->attributes)) | |
1604 | printf("All supported\n"); | |
1605 | else | |
1606 | printf("not supported\n"); | |
a5d85af7 | 1607 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1608 | fname_from_uuid(st, &info, nbuf, ':'); |
27fd6274 | 1609 | printf(" UUID : %s\n", nbuf + 5); |
cdddbdbc DW |
1610 | sum = __le32_to_cpu(mpb->check_sum); |
1611 | printf(" Checksum : %08x %s\n", sum, | |
949c47a0 | 1612 | __gen_imsm_checksum(mpb) == sum ? "correct" : "incorrect"); |
f36a9ecd | 1613 | printf(" MPB Sectors : %d\n", mpb_sectors(mpb, super->sector_size)); |
cdddbdbc DW |
1614 | printf(" Disks : %d\n", mpb->num_disks); |
1615 | printf(" RAID Devices : %d\n", mpb->num_raid_devs); | |
0ec1f4e8 | 1616 | print_imsm_disk(__get_imsm_disk(mpb, super->disks->index), super->disks->index, reserved); |
8d67477f | 1617 | if (get_imsm_bbm_log_size(super->bbm_log)) { |
604b746f JD |
1618 | struct bbm_log *log = super->bbm_log; |
1619 | ||
1620 | printf("\n"); | |
1621 | printf("Bad Block Management Log:\n"); | |
1622 | printf(" Log Size : %d\n", __le32_to_cpu(mpb->bbm_log_size)); | |
1623 | printf(" Signature : %x\n", __le32_to_cpu(log->signature)); | |
1624 | printf(" Entry Count : %d\n", __le32_to_cpu(log->entry_count)); | |
604b746f | 1625 | } |
44470971 DW |
1626 | for (i = 0; i < mpb->num_raid_devs; i++) { |
1627 | struct mdinfo info; | |
1628 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
1629 | ||
1630 | super->current_vol = i; | |
a5d85af7 | 1631 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1632 | fname_from_uuid(st, &info, nbuf, ':'); |
c47b0ff6 | 1633 | print_imsm_dev(super, dev, nbuf + 5, super->disks->index); |
44470971 | 1634 | } |
cdddbdbc DW |
1635 | for (i = 0; i < mpb->num_disks; i++) { |
1636 | if (i == super->disks->index) | |
1637 | continue; | |
0ec1f4e8 | 1638 | print_imsm_disk(__get_imsm_disk(mpb, i), i, reserved); |
cdddbdbc | 1639 | } |
94827db3 | 1640 | |
0ec1f4e8 DW |
1641 | for (dl = super->disks; dl; dl = dl->next) |
1642 | if (dl->index == -1) | |
1643 | print_imsm_disk(&dl->disk, -1, reserved); | |
520e69e2 AK |
1644 | |
1645 | examine_migr_rec_imsm(super); | |
cdddbdbc DW |
1646 | } |
1647 | ||
061f2c6a | 1648 | static void brief_examine_super_imsm(struct supertype *st, int verbose) |
cdddbdbc | 1649 | { |
27fd6274 | 1650 | /* We just write a generic IMSM ARRAY entry */ |
ff54de6e N |
1651 | struct mdinfo info; |
1652 | char nbuf[64]; | |
1e7bc0ed | 1653 | struct intel_super *super = st->sb; |
1e7bc0ed | 1654 | |
0d5a423f DW |
1655 | if (!super->anchor->num_raid_devs) { |
1656 | printf("ARRAY metadata=imsm\n"); | |
1e7bc0ed | 1657 | return; |
0d5a423f | 1658 | } |
ff54de6e | 1659 | |
a5d85af7 | 1660 | getinfo_super_imsm(st, &info, NULL); |
4737ae25 N |
1661 | fname_from_uuid(st, &info, nbuf, ':'); |
1662 | printf("ARRAY metadata=imsm UUID=%s\n", nbuf + 5); | |
1663 | } | |
1664 | ||
1665 | static void brief_examine_subarrays_imsm(struct supertype *st, int verbose) | |
1666 | { | |
1667 | /* We just write a generic IMSM ARRAY entry */ | |
1668 | struct mdinfo info; | |
1669 | char nbuf[64]; | |
1670 | char nbuf1[64]; | |
1671 | struct intel_super *super = st->sb; | |
1672 | int i; | |
1673 | ||
1674 | if (!super->anchor->num_raid_devs) | |
1675 | return; | |
1676 | ||
a5d85af7 | 1677 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1678 | fname_from_uuid(st, &info, nbuf, ':'); |
1e7bc0ed DW |
1679 | for (i = 0; i < super->anchor->num_raid_devs; i++) { |
1680 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
1681 | ||
1682 | super->current_vol = i; | |
a5d85af7 | 1683 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1684 | fname_from_uuid(st, &info, nbuf1, ':'); |
1124b3cf | 1685 | printf("ARRAY /dev/md/%.16s container=%s member=%d UUID=%s\n", |
cf8de691 | 1686 | dev->volume, nbuf + 5, i, nbuf1 + 5); |
1e7bc0ed | 1687 | } |
cdddbdbc DW |
1688 | } |
1689 | ||
9d84c8ea DW |
1690 | static void export_examine_super_imsm(struct supertype *st) |
1691 | { | |
1692 | struct intel_super *super = st->sb; | |
1693 | struct imsm_super *mpb = super->anchor; | |
1694 | struct mdinfo info; | |
1695 | char nbuf[64]; | |
1696 | ||
a5d85af7 | 1697 | getinfo_super_imsm(st, &info, NULL); |
9d84c8ea DW |
1698 | fname_from_uuid(st, &info, nbuf, ':'); |
1699 | printf("MD_METADATA=imsm\n"); | |
1700 | printf("MD_LEVEL=container\n"); | |
1701 | printf("MD_UUID=%s\n", nbuf+5); | |
1702 | printf("MD_DEVICES=%u\n", mpb->num_disks); | |
1703 | } | |
1704 | ||
74db60b0 N |
1705 | static int copy_metadata_imsm(struct supertype *st, int from, int to) |
1706 | { | |
f36a9ecd | 1707 | /* The second last sector of the device contains |
74db60b0 N |
1708 | * the "struct imsm_super" metadata. |
1709 | * This contains mpb_size which is the size in bytes of the | |
1710 | * extended metadata. This is located immediately before | |
1711 | * the imsm_super. | |
1712 | * We want to read all that, plus the last sector which | |
1713 | * may contain a migration record, and write it all | |
1714 | * to the target. | |
1715 | */ | |
1716 | void *buf; | |
1717 | unsigned long long dsize, offset; | |
1718 | int sectors; | |
1719 | struct imsm_super *sb; | |
f36a9ecd PB |
1720 | struct intel_super *super = st->sb; |
1721 | unsigned int sector_size = super->sector_size; | |
1722 | unsigned int written = 0; | |
74db60b0 | 1723 | |
de44e46f | 1724 | if (posix_memalign(&buf, MAX_SECTOR_SIZE, MAX_SECTOR_SIZE) != 0) |
74db60b0 N |
1725 | return 1; |
1726 | ||
1727 | if (!get_dev_size(from, NULL, &dsize)) | |
1728 | goto err; | |
1729 | ||
f36a9ecd | 1730 | if (lseek64(from, dsize-(2*sector_size), 0) < 0) |
74db60b0 | 1731 | goto err; |
f36a9ecd | 1732 | if (read(from, buf, sector_size) != sector_size) |
74db60b0 N |
1733 | goto err; |
1734 | sb = buf; | |
1735 | if (strncmp((char*)sb->sig, MPB_SIGNATURE, MPB_SIG_LEN) != 0) | |
1736 | goto err; | |
1737 | ||
f36a9ecd PB |
1738 | sectors = mpb_sectors(sb, sector_size) + 2; |
1739 | offset = dsize - sectors * sector_size; | |
74db60b0 N |
1740 | if (lseek64(from, offset, 0) < 0 || |
1741 | lseek64(to, offset, 0) < 0) | |
1742 | goto err; | |
f36a9ecd PB |
1743 | while (written < sectors * sector_size) { |
1744 | int n = sectors*sector_size - written; | |
74db60b0 N |
1745 | if (n > 4096) |
1746 | n = 4096; | |
1747 | if (read(from, buf, n) != n) | |
1748 | goto err; | |
1749 | if (write(to, buf, n) != n) | |
1750 | goto err; | |
1751 | written += n; | |
1752 | } | |
1753 | free(buf); | |
1754 | return 0; | |
1755 | err: | |
1756 | free(buf); | |
1757 | return 1; | |
1758 | } | |
1759 | ||
cdddbdbc DW |
1760 | static void detail_super_imsm(struct supertype *st, char *homehost) |
1761 | { | |
3ebe00a1 DW |
1762 | struct mdinfo info; |
1763 | char nbuf[64]; | |
1764 | ||
a5d85af7 | 1765 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1766 | fname_from_uuid(st, &info, nbuf, ':'); |
3ebe00a1 | 1767 | printf("\n UUID : %s\n", nbuf + 5); |
cdddbdbc DW |
1768 | } |
1769 | ||
1770 | static void brief_detail_super_imsm(struct supertype *st) | |
1771 | { | |
ff54de6e N |
1772 | struct mdinfo info; |
1773 | char nbuf[64]; | |
a5d85af7 | 1774 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 1775 | fname_from_uuid(st, &info, nbuf, ':'); |
ff54de6e | 1776 | printf(" UUID=%s", nbuf + 5); |
cdddbdbc | 1777 | } |
d665cc31 DW |
1778 | |
1779 | static int imsm_read_serial(int fd, char *devname, __u8 *serial); | |
1780 | static void fd2devname(int fd, char *name); | |
1781 | ||
120dc887 | 1782 | static int ahci_enumerate_ports(const char *hba_path, int port_count, int host_base, int verbose) |
d665cc31 | 1783 | { |
120dc887 LM |
1784 | /* dump an unsorted list of devices attached to AHCI Intel storage |
1785 | * controller, as well as non-connected ports | |
d665cc31 DW |
1786 | */ |
1787 | int hba_len = strlen(hba_path) + 1; | |
1788 | struct dirent *ent; | |
1789 | DIR *dir; | |
1790 | char *path = NULL; | |
1791 | int err = 0; | |
1792 | unsigned long port_mask = (1 << port_count) - 1; | |
1793 | ||
f21e18ca | 1794 | if (port_count > (int)sizeof(port_mask) * 8) { |
ba728be7 | 1795 | if (verbose > 0) |
e7b84f9d | 1796 | pr_err("port_count %d out of range\n", port_count); |
d665cc31 DW |
1797 | return 2; |
1798 | } | |
1799 | ||
1800 | /* scroll through /sys/dev/block looking for devices attached to | |
1801 | * this hba | |
1802 | */ | |
1803 | dir = opendir("/sys/dev/block"); | |
1a6dd6b9 PB |
1804 | if (!dir) |
1805 | return 1; | |
1806 | ||
1807 | for (ent = readdir(dir); ent; ent = readdir(dir)) { | |
d665cc31 DW |
1808 | int fd; |
1809 | char model[64]; | |
1810 | char vendor[64]; | |
1811 | char buf[1024]; | |
1812 | int major, minor; | |
1813 | char *device; | |
1814 | char *c; | |
1815 | int port; | |
1816 | int type; | |
1817 | ||
1818 | if (sscanf(ent->d_name, "%d:%d", &major, &minor) != 2) | |
1819 | continue; | |
1820 | path = devt_to_devpath(makedev(major, minor)); | |
1821 | if (!path) | |
1822 | continue; | |
1823 | if (!path_attached_to_hba(path, hba_path)) { | |
1824 | free(path); | |
1825 | path = NULL; | |
1826 | continue; | |
1827 | } | |
1828 | ||
1829 | /* retrieve the scsi device type */ | |
1830 | if (asprintf(&device, "/sys/dev/block/%d:%d/device/xxxxxxx", major, minor) < 0) { | |
ba728be7 | 1831 | if (verbose > 0) |
e7b84f9d | 1832 | pr_err("failed to allocate 'device'\n"); |
d665cc31 DW |
1833 | err = 2; |
1834 | break; | |
1835 | } | |
1836 | sprintf(device, "/sys/dev/block/%d:%d/device/type", major, minor); | |
193b6c0b | 1837 | if (load_sys(device, buf, sizeof(buf)) != 0) { |
ba728be7 | 1838 | if (verbose > 0) |
e7b84f9d | 1839 | pr_err("failed to read device type for %s\n", |
d665cc31 DW |
1840 | path); |
1841 | err = 2; | |
1842 | free(device); | |
1843 | break; | |
1844 | } | |
1845 | type = strtoul(buf, NULL, 10); | |
1846 | ||
1847 | /* if it's not a disk print the vendor and model */ | |
1848 | if (!(type == 0 || type == 7 || type == 14)) { | |
1849 | vendor[0] = '\0'; | |
1850 | model[0] = '\0'; | |
1851 | sprintf(device, "/sys/dev/block/%d:%d/device/vendor", major, minor); | |
193b6c0b | 1852 | if (load_sys(device, buf, sizeof(buf)) == 0) { |
d665cc31 DW |
1853 | strncpy(vendor, buf, sizeof(vendor)); |
1854 | vendor[sizeof(vendor) - 1] = '\0'; | |
1855 | c = (char *) &vendor[sizeof(vendor) - 1]; | |
1856 | while (isspace(*c) || *c == '\0') | |
1857 | *c-- = '\0'; | |
1858 | ||
1859 | } | |
1860 | sprintf(device, "/sys/dev/block/%d:%d/device/model", major, minor); | |
193b6c0b | 1861 | if (load_sys(device, buf, sizeof(buf)) == 0) { |
d665cc31 DW |
1862 | strncpy(model, buf, sizeof(model)); |
1863 | model[sizeof(model) - 1] = '\0'; | |
1864 | c = (char *) &model[sizeof(model) - 1]; | |
1865 | while (isspace(*c) || *c == '\0') | |
1866 | *c-- = '\0'; | |
1867 | } | |
1868 | ||
1869 | if (vendor[0] && model[0]) | |
1870 | sprintf(buf, "%.64s %.64s", vendor, model); | |
1871 | else | |
1872 | switch (type) { /* numbers from hald/linux/device.c */ | |
1873 | case 1: sprintf(buf, "tape"); break; | |
1874 | case 2: sprintf(buf, "printer"); break; | |
1875 | case 3: sprintf(buf, "processor"); break; | |
1876 | case 4: | |
1877 | case 5: sprintf(buf, "cdrom"); break; | |
1878 | case 6: sprintf(buf, "scanner"); break; | |
1879 | case 8: sprintf(buf, "media_changer"); break; | |
1880 | case 9: sprintf(buf, "comm"); break; | |
1881 | case 12: sprintf(buf, "raid"); break; | |
1882 | default: sprintf(buf, "unknown"); | |
1883 | } | |
1884 | } else | |
1885 | buf[0] = '\0'; | |
1886 | free(device); | |
1887 | ||
1888 | /* chop device path to 'host%d' and calculate the port number */ | |
1889 | c = strchr(&path[hba_len], '/'); | |
4e5e717d | 1890 | if (!c) { |
ba728be7 | 1891 | if (verbose > 0) |
e7b84f9d | 1892 | pr_err("%s - invalid path name\n", path + hba_len); |
4e5e717d AW |
1893 | err = 2; |
1894 | break; | |
1895 | } | |
d665cc31 | 1896 | *c = '\0'; |
0858eccf AP |
1897 | if ((sscanf(&path[hba_len], "ata%d", &port) == 1) || |
1898 | ((sscanf(&path[hba_len], "host%d", &port) == 1))) | |
d665cc31 DW |
1899 | port -= host_base; |
1900 | else { | |
ba728be7 | 1901 | if (verbose > 0) { |
d665cc31 | 1902 | *c = '/'; /* repair the full string */ |
e7b84f9d | 1903 | pr_err("failed to determine port number for %s\n", |
d665cc31 DW |
1904 | path); |
1905 | } | |
1906 | err = 2; | |
1907 | break; | |
1908 | } | |
1909 | ||
1910 | /* mark this port as used */ | |
1911 | port_mask &= ~(1 << port); | |
1912 | ||
1913 | /* print out the device information */ | |
1914 | if (buf[0]) { | |
1915 | printf(" Port%d : - non-disk device (%s) -\n", port, buf); | |
1916 | continue; | |
1917 | } | |
1918 | ||
1919 | fd = dev_open(ent->d_name, O_RDONLY); | |
1920 | if (fd < 0) | |
1921 | printf(" Port%d : - disk info unavailable -\n", port); | |
1922 | else { | |
1923 | fd2devname(fd, buf); | |
1924 | printf(" Port%d : %s", port, buf); | |
1925 | if (imsm_read_serial(fd, NULL, (__u8 *) buf) == 0) | |
664d5325 | 1926 | printf(" (%.*s)\n", MAX_RAID_SERIAL_LEN, buf); |
d665cc31 | 1927 | else |
664d5325 | 1928 | printf(" ()\n"); |
4dab422a | 1929 | close(fd); |
d665cc31 | 1930 | } |
d665cc31 DW |
1931 | free(path); |
1932 | path = NULL; | |
1933 | } | |
1934 | if (path) | |
1935 | free(path); | |
1936 | if (dir) | |
1937 | closedir(dir); | |
1938 | if (err == 0) { | |
1939 | int i; | |
1940 | ||
1941 | for (i = 0; i < port_count; i++) | |
1942 | if (port_mask & (1 << i)) | |
1943 | printf(" Port%d : - no device attached -\n", i); | |
1944 | } | |
1945 | ||
1946 | return err; | |
1947 | } | |
1948 | ||
b5eece69 | 1949 | static int print_vmd_attached_devs(struct sys_dev *hba) |
60f0f54d PB |
1950 | { |
1951 | struct dirent *ent; | |
1952 | DIR *dir; | |
1953 | char path[292]; | |
1954 | char link[256]; | |
1955 | char *c, *rp; | |
1956 | ||
1957 | if (hba->type != SYS_DEV_VMD) | |
b5eece69 | 1958 | return 1; |
60f0f54d PB |
1959 | |
1960 | /* scroll through /sys/dev/block looking for devices attached to | |
1961 | * this hba | |
1962 | */ | |
1963 | dir = opendir("/sys/bus/pci/drivers/nvme"); | |
b9135011 | 1964 | if (!dir) |
b5eece69 | 1965 | return 1; |
b9135011 JS |
1966 | |
1967 | for (ent = readdir(dir); ent; ent = readdir(dir)) { | |
60f0f54d PB |
1968 | int n; |
1969 | ||
1970 | /* is 'ent' a device? check that the 'subsystem' link exists and | |
1971 | * that its target matches 'bus' | |
1972 | */ | |
1973 | sprintf(path, "/sys/bus/pci/drivers/nvme/%s/subsystem", | |
1974 | ent->d_name); | |
1975 | n = readlink(path, link, sizeof(link)); | |
1976 | if (n < 0 || n >= (int)sizeof(link)) | |
1977 | continue; | |
1978 | link[n] = '\0'; | |
1979 | c = strrchr(link, '/'); | |
1980 | if (!c) | |
1981 | continue; | |
1982 | if (strncmp("pci", c+1, strlen("pci")) != 0) | |
1983 | continue; | |
1984 | ||
1985 | sprintf(path, "/sys/bus/pci/drivers/nvme/%s", ent->d_name); | |
1986 | /* if not a intel NVMe - skip it*/ | |
1987 | if (devpath_to_vendor(path) != 0x8086) | |
1988 | continue; | |
1989 | ||
1990 | rp = realpath(path, NULL); | |
1991 | if (!rp) | |
1992 | continue; | |
1993 | ||
1994 | if (path_attached_to_hba(rp, hba->path)) { | |
1995 | printf(" NVMe under VMD : %s\n", rp); | |
1996 | } | |
1997 | free(rp); | |
1998 | } | |
1999 | ||
b9135011 | 2000 | closedir(dir); |
b5eece69 | 2001 | return 0; |
60f0f54d PB |
2002 | } |
2003 | ||
120dc887 LM |
2004 | static void print_found_intel_controllers(struct sys_dev *elem) |
2005 | { | |
2006 | for (; elem; elem = elem->next) { | |
e7b84f9d | 2007 | pr_err("found Intel(R) "); |
120dc887 LM |
2008 | if (elem->type == SYS_DEV_SATA) |
2009 | fprintf(stderr, "SATA "); | |
155cbb4c LM |
2010 | else if (elem->type == SYS_DEV_SAS) |
2011 | fprintf(stderr, "SAS "); | |
0858eccf AP |
2012 | else if (elem->type == SYS_DEV_NVME) |
2013 | fprintf(stderr, "NVMe "); | |
60f0f54d PB |
2014 | |
2015 | if (elem->type == SYS_DEV_VMD) | |
2016 | fprintf(stderr, "VMD domain"); | |
2017 | else | |
2018 | fprintf(stderr, "RAID controller"); | |
2019 | ||
120dc887 LM |
2020 | if (elem->pci_id) |
2021 | fprintf(stderr, " at %s", elem->pci_id); | |
2022 | fprintf(stderr, ".\n"); | |
2023 | } | |
2024 | fflush(stderr); | |
2025 | } | |
2026 | ||
120dc887 LM |
2027 | static int ahci_get_port_count(const char *hba_path, int *port_count) |
2028 | { | |
2029 | struct dirent *ent; | |
2030 | DIR *dir; | |
2031 | int host_base = -1; | |
2032 | ||
2033 | *port_count = 0; | |
2034 | if ((dir = opendir(hba_path)) == NULL) | |
2035 | return -1; | |
2036 | ||
2037 | for (ent = readdir(dir); ent; ent = readdir(dir)) { | |
2038 | int host; | |
2039 | ||
0858eccf AP |
2040 | if ((sscanf(ent->d_name, "ata%d", &host) != 1) && |
2041 | ((sscanf(ent->d_name, "host%d", &host) != 1))) | |
120dc887 LM |
2042 | continue; |
2043 | if (*port_count == 0) | |
2044 | host_base = host; | |
2045 | else if (host < host_base) | |
2046 | host_base = host; | |
2047 | ||
2048 | if (host + 1 > *port_count + host_base) | |
2049 | *port_count = host + 1 - host_base; | |
2050 | } | |
2051 | closedir(dir); | |
2052 | return host_base; | |
2053 | } | |
2054 | ||
a891a3c2 LM |
2055 | static void print_imsm_capability(const struct imsm_orom *orom) |
2056 | { | |
0858eccf AP |
2057 | printf(" Platform : Intel(R) "); |
2058 | if (orom->capabilities == 0 && orom->driver_features == 0) | |
2059 | printf("Matrix Storage Manager\n"); | |
2060 | else | |
2061 | printf("Rapid Storage Technology%s\n", | |
2062 | imsm_orom_is_enterprise(orom) ? " enterprise" : ""); | |
2063 | if (orom->major_ver || orom->minor_ver || orom->hotfix_ver || orom->build) | |
2064 | printf(" Version : %d.%d.%d.%d\n", orom->major_ver, | |
2065 | orom->minor_ver, orom->hotfix_ver, orom->build); | |
a891a3c2 LM |
2066 | printf(" RAID Levels :%s%s%s%s%s\n", |
2067 | imsm_orom_has_raid0(orom) ? " raid0" : "", | |
2068 | imsm_orom_has_raid1(orom) ? " raid1" : "", | |
2069 | imsm_orom_has_raid1e(orom) ? " raid1e" : "", | |
2070 | imsm_orom_has_raid10(orom) ? " raid10" : "", | |
2071 | imsm_orom_has_raid5(orom) ? " raid5" : ""); | |
2072 | printf(" Chunk Sizes :%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", | |
2073 | imsm_orom_has_chunk(orom, 2) ? " 2k" : "", | |
2074 | imsm_orom_has_chunk(orom, 4) ? " 4k" : "", | |
2075 | imsm_orom_has_chunk(orom, 8) ? " 8k" : "", | |
2076 | imsm_orom_has_chunk(orom, 16) ? " 16k" : "", | |
2077 | imsm_orom_has_chunk(orom, 32) ? " 32k" : "", | |
2078 | imsm_orom_has_chunk(orom, 64) ? " 64k" : "", | |
2079 | imsm_orom_has_chunk(orom, 128) ? " 128k" : "", | |
2080 | imsm_orom_has_chunk(orom, 256) ? " 256k" : "", | |
2081 | imsm_orom_has_chunk(orom, 512) ? " 512k" : "", | |
2082 | imsm_orom_has_chunk(orom, 1024*1) ? " 1M" : "", | |
2083 | imsm_orom_has_chunk(orom, 1024*2) ? " 2M" : "", | |
2084 | imsm_orom_has_chunk(orom, 1024*4) ? " 4M" : "", | |
2085 | imsm_orom_has_chunk(orom, 1024*8) ? " 8M" : "", | |
2086 | imsm_orom_has_chunk(orom, 1024*16) ? " 16M" : "", | |
2087 | imsm_orom_has_chunk(orom, 1024*32) ? " 32M" : "", | |
2088 | imsm_orom_has_chunk(orom, 1024*64) ? " 64M" : ""); | |
29cd0821 CA |
2089 | printf(" 2TB volumes :%s supported\n", |
2090 | (orom->attr & IMSM_OROM_ATTR_2TB)?"":" not"); | |
2091 | printf(" 2TB disks :%s supported\n", | |
2092 | (orom->attr & IMSM_OROM_ATTR_2TB_DISK)?"":" not"); | |
0e7f69a8 | 2093 | printf(" Max Disks : %d\n", orom->tds); |
0858eccf AP |
2094 | printf(" Max Volumes : %d per array, %d per %s\n", |
2095 | orom->vpa, orom->vphba, | |
2096 | imsm_orom_is_nvme(orom) ? "platform" : "controller"); | |
a891a3c2 LM |
2097 | return; |
2098 | } | |
2099 | ||
e50cf220 MN |
2100 | static void print_imsm_capability_export(const struct imsm_orom *orom) |
2101 | { | |
2102 | printf("MD_FIRMWARE_TYPE=imsm\n"); | |
0858eccf AP |
2103 | if (orom->major_ver || orom->minor_ver || orom->hotfix_ver || orom->build) |
2104 | printf("IMSM_VERSION=%d.%d.%d.%d\n", orom->major_ver, orom->minor_ver, | |
2105 | orom->hotfix_ver, orom->build); | |
e50cf220 MN |
2106 | printf("IMSM_SUPPORTED_RAID_LEVELS=%s%s%s%s%s\n", |
2107 | imsm_orom_has_raid0(orom) ? "raid0 " : "", | |
2108 | imsm_orom_has_raid1(orom) ? "raid1 " : "", | |
2109 | imsm_orom_has_raid1e(orom) ? "raid1e " : "", | |
2110 | imsm_orom_has_raid5(orom) ? "raid10 " : "", | |
2111 | imsm_orom_has_raid10(orom) ? "raid5 " : ""); | |
2112 | printf("IMSM_SUPPORTED_CHUNK_SIZES=%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", | |
2113 | imsm_orom_has_chunk(orom, 2) ? "2k " : "", | |
2114 | imsm_orom_has_chunk(orom, 4) ? "4k " : "", | |
2115 | imsm_orom_has_chunk(orom, 8) ? "8k " : "", | |
2116 | imsm_orom_has_chunk(orom, 16) ? "16k " : "", | |
2117 | imsm_orom_has_chunk(orom, 32) ? "32k " : "", | |
2118 | imsm_orom_has_chunk(orom, 64) ? "64k " : "", | |
2119 | imsm_orom_has_chunk(orom, 128) ? "128k " : "", | |
2120 | imsm_orom_has_chunk(orom, 256) ? "256k " : "", | |
2121 | imsm_orom_has_chunk(orom, 512) ? "512k " : "", | |
2122 | imsm_orom_has_chunk(orom, 1024*1) ? "1M " : "", | |
2123 | imsm_orom_has_chunk(orom, 1024*2) ? "2M " : "", | |
2124 | imsm_orom_has_chunk(orom, 1024*4) ? "4M " : "", | |
2125 | imsm_orom_has_chunk(orom, 1024*8) ? "8M " : "", | |
2126 | imsm_orom_has_chunk(orom, 1024*16) ? "16M " : "", | |
2127 | imsm_orom_has_chunk(orom, 1024*32) ? "32M " : "", | |
2128 | imsm_orom_has_chunk(orom, 1024*64) ? "64M " : ""); | |
2129 | printf("IMSM_2TB_VOLUMES=%s\n",(orom->attr & IMSM_OROM_ATTR_2TB) ? "yes" : "no"); | |
2130 | printf("IMSM_2TB_DISKS=%s\n",(orom->attr & IMSM_OROM_ATTR_2TB_DISK) ? "yes" : "no"); | |
2131 | printf("IMSM_MAX_DISKS=%d\n",orom->tds); | |
2132 | printf("IMSM_MAX_VOLUMES_PER_ARRAY=%d\n",orom->vpa); | |
2133 | printf("IMSM_MAX_VOLUMES_PER_CONTROLLER=%d\n",orom->vphba); | |
2134 | } | |
2135 | ||
9eafa1de | 2136 | static int detail_platform_imsm(int verbose, int enumerate_only, char *controller_path) |
d665cc31 DW |
2137 | { |
2138 | /* There are two components to imsm platform support, the ahci SATA | |
2139 | * controller and the option-rom. To find the SATA controller we | |
2140 | * simply look in /sys/bus/pci/drivers/ahci to see if an ahci | |
2141 | * controller with the Intel vendor id is present. This approach | |
2142 | * allows mdadm to leverage the kernel's ahci detection logic, with the | |
2143 | * caveat that if ahci.ko is not loaded mdadm will not be able to | |
2144 | * detect platform raid capabilities. The option-rom resides in a | |
2145 | * platform "Adapter ROM". We scan for its signature to retrieve the | |
2146 | * platform capabilities. If raid support is disabled in the BIOS the | |
2147 | * option-rom capability structure will not be available. | |
2148 | */ | |
d665cc31 | 2149 | struct sys_dev *list, *hba; |
d665cc31 DW |
2150 | int host_base = 0; |
2151 | int port_count = 0; | |
9eafa1de | 2152 | int result=1; |
d665cc31 | 2153 | |
5615172f | 2154 | if (enumerate_only) { |
a891a3c2 | 2155 | if (check_env("IMSM_NO_PLATFORM")) |
5615172f | 2156 | return 0; |
a891a3c2 LM |
2157 | list = find_intel_devices(); |
2158 | if (!list) | |
2159 | return 2; | |
2160 | for (hba = list; hba; hba = hba->next) { | |
6b781d33 AP |
2161 | if (find_imsm_capability(hba)) { |
2162 | result = 0; | |
a891a3c2 LM |
2163 | break; |
2164 | } | |
9eafa1de | 2165 | else |
6b781d33 | 2166 | result = 2; |
a891a3c2 | 2167 | } |
a891a3c2 | 2168 | return result; |
5615172f DW |
2169 | } |
2170 | ||
155cbb4c LM |
2171 | list = find_intel_devices(); |
2172 | if (!list) { | |
ba728be7 | 2173 | if (verbose > 0) |
7a862a02 | 2174 | pr_err("no active Intel(R) RAID controller found.\n"); |
d665cc31 | 2175 | return 2; |
ba728be7 | 2176 | } else if (verbose > 0) |
155cbb4c | 2177 | print_found_intel_controllers(list); |
d665cc31 | 2178 | |
a891a3c2 | 2179 | for (hba = list; hba; hba = hba->next) { |
0858eccf | 2180 | if (controller_path && (compare_paths(hba->path, controller_path) != 0)) |
9eafa1de | 2181 | continue; |
0858eccf | 2182 | if (!find_imsm_capability(hba)) { |
60f0f54d | 2183 | char buf[PATH_MAX]; |
e7b84f9d | 2184 | pr_err("imsm capabilities not found for controller: %s (type %s)\n", |
60f0f54d PB |
2185 | hba->type == SYS_DEV_VMD ? vmd_domain_to_controller(hba, buf) : hba->path, |
2186 | get_sys_dev_type(hba->type)); | |
0858eccf AP |
2187 | continue; |
2188 | } | |
2189 | result = 0; | |
2190 | } | |
2191 | ||
2192 | if (controller_path && result == 1) { | |
2193 | pr_err("no active Intel(R) RAID controller found under %s\n", | |
2194 | controller_path); | |
2195 | return result; | |
2196 | } | |
2197 | ||
5e1d6128 | 2198 | const struct orom_entry *entry; |
0858eccf | 2199 | |
5e1d6128 | 2200 | for (entry = orom_entries; entry; entry = entry->next) { |
60f0f54d | 2201 | if (entry->type == SYS_DEV_VMD) { |
07cb1e57 | 2202 | print_imsm_capability(&entry->orom); |
60f0f54d PB |
2203 | for (hba = list; hba; hba = hba->next) { |
2204 | if (hba->type == SYS_DEV_VMD) { | |
2205 | char buf[PATH_MAX]; | |
60f0f54d PB |
2206 | printf(" I/O Controller : %s (%s)\n", |
2207 | vmd_domain_to_controller(hba, buf), get_sys_dev_type(hba->type)); | |
b5eece69 PB |
2208 | if (print_vmd_attached_devs(hba)) { |
2209 | if (verbose > 0) | |
2210 | pr_err("failed to get devices attached to VMD domain.\n"); | |
2211 | result |= 2; | |
2212 | } | |
60f0f54d PB |
2213 | } |
2214 | } | |
07cb1e57 | 2215 | printf("\n"); |
60f0f54d PB |
2216 | continue; |
2217 | } | |
0858eccf | 2218 | |
60f0f54d PB |
2219 | print_imsm_capability(&entry->orom); |
2220 | if (entry->type == SYS_DEV_NVME) { | |
0858eccf AP |
2221 | for (hba = list; hba; hba = hba->next) { |
2222 | if (hba->type == SYS_DEV_NVME) | |
2223 | printf(" NVMe Device : %s\n", hba->path); | |
2224 | } | |
60f0f54d | 2225 | printf("\n"); |
0858eccf AP |
2226 | continue; |
2227 | } | |
2228 | ||
2229 | struct devid_list *devid; | |
5e1d6128 | 2230 | for (devid = entry->devid_list; devid; devid = devid->next) { |
0858eccf AP |
2231 | hba = device_by_id(devid->devid); |
2232 | if (!hba) | |
2233 | continue; | |
2234 | ||
9eafa1de MN |
2235 | printf(" I/O Controller : %s (%s)\n", |
2236 | hba->path, get_sys_dev_type(hba->type)); | |
2237 | if (hba->type == SYS_DEV_SATA) { | |
2238 | host_base = ahci_get_port_count(hba->path, &port_count); | |
2239 | if (ahci_enumerate_ports(hba->path, port_count, host_base, verbose)) { | |
2240 | if (verbose > 0) | |
7a862a02 | 2241 | pr_err("failed to enumerate ports on SATA controller at %s.\n", hba->pci_id); |
9eafa1de MN |
2242 | result |= 2; |
2243 | } | |
120dc887 LM |
2244 | } |
2245 | } | |
0858eccf | 2246 | printf("\n"); |
d665cc31 | 2247 | } |
155cbb4c | 2248 | |
120dc887 | 2249 | return result; |
d665cc31 | 2250 | } |
e50cf220 | 2251 | |
9eafa1de | 2252 | static int export_detail_platform_imsm(int verbose, char *controller_path) |
e50cf220 | 2253 | { |
e50cf220 MN |
2254 | struct sys_dev *list, *hba; |
2255 | int result=1; | |
2256 | ||
2257 | list = find_intel_devices(); | |
2258 | if (!list) { | |
2259 | if (verbose > 0) | |
2260 | pr_err("IMSM_DETAIL_PLATFORM_ERROR=NO_INTEL_DEVICES\n"); | |
2261 | result = 2; | |
e50cf220 MN |
2262 | return result; |
2263 | } | |
2264 | ||
2265 | for (hba = list; hba; hba = hba->next) { | |
9eafa1de MN |
2266 | if (controller_path && (compare_paths(hba->path,controller_path) != 0)) |
2267 | continue; | |
60f0f54d PB |
2268 | if (!find_imsm_capability(hba) && verbose > 0) { |
2269 | char buf[PATH_MAX]; | |
2270 | pr_err("IMSM_DETAIL_PLATFORM_ERROR=NO_IMSM_CAPABLE_DEVICE_UNDER_%s\n", | |
2271 | hba->type == SYS_DEV_VMD ? vmd_domain_to_controller(hba, buf) : hba->path); | |
2272 | } | |
0858eccf | 2273 | else |
e50cf220 | 2274 | result = 0; |
e50cf220 MN |
2275 | } |
2276 | ||
5e1d6128 | 2277 | const struct orom_entry *entry; |
0858eccf | 2278 | |
60f0f54d PB |
2279 | for (entry = orom_entries; entry; entry = entry->next) { |
2280 | if (entry->type == SYS_DEV_VMD) { | |
2281 | for (hba = list; hba; hba = hba->next) | |
2282 | print_imsm_capability_export(&entry->orom); | |
2283 | continue; | |
2284 | } | |
5e1d6128 | 2285 | print_imsm_capability_export(&entry->orom); |
60f0f54d | 2286 | } |
0858eccf | 2287 | |
e50cf220 MN |
2288 | return result; |
2289 | } | |
2290 | ||
cdddbdbc DW |
2291 | #endif |
2292 | ||
2293 | static int match_home_imsm(struct supertype *st, char *homehost) | |
2294 | { | |
5115ca67 DW |
2295 | /* the imsm metadata format does not specify any host |
2296 | * identification information. We return -1 since we can never | |
2297 | * confirm nor deny whether a given array is "meant" for this | |
148acb7b | 2298 | * host. We rely on compare_super and the 'family_num' fields to |
5115ca67 DW |
2299 | * exclude member disks that do not belong, and we rely on |
2300 | * mdadm.conf to specify the arrays that should be assembled. | |
2301 | * Auto-assembly may still pick up "foreign" arrays. | |
2302 | */ | |
cdddbdbc | 2303 | |
9362c1c8 | 2304 | return -1; |
cdddbdbc DW |
2305 | } |
2306 | ||
2307 | static void uuid_from_super_imsm(struct supertype *st, int uuid[4]) | |
2308 | { | |
51006d85 N |
2309 | /* The uuid returned here is used for: |
2310 | * uuid to put into bitmap file (Create, Grow) | |
2311 | * uuid for backup header when saving critical section (Grow) | |
2312 | * comparing uuids when re-adding a device into an array | |
2313 | * In these cases the uuid required is that of the data-array, | |
2314 | * not the device-set. | |
2315 | * uuid to recognise same set when adding a missing device back | |
2316 | * to an array. This is a uuid for the device-set. | |
1011e834 | 2317 | * |
51006d85 N |
2318 | * For each of these we can make do with a truncated |
2319 | * or hashed uuid rather than the original, as long as | |
2320 | * everyone agrees. | |
2321 | * In each case the uuid required is that of the data-array, | |
2322 | * not the device-set. | |
43dad3d6 | 2323 | */ |
51006d85 N |
2324 | /* imsm does not track uuid's so we synthesis one using sha1 on |
2325 | * - The signature (Which is constant for all imsm array, but no matter) | |
148acb7b | 2326 | * - the orig_family_num of the container |
51006d85 N |
2327 | * - the index number of the volume |
2328 | * - the 'serial' number of the volume. | |
2329 | * Hopefully these are all constant. | |
2330 | */ | |
2331 | struct intel_super *super = st->sb; | |
43dad3d6 | 2332 | |
51006d85 N |
2333 | char buf[20]; |
2334 | struct sha1_ctx ctx; | |
2335 | struct imsm_dev *dev = NULL; | |
148acb7b | 2336 | __u32 family_num; |
51006d85 | 2337 | |
148acb7b DW |
2338 | /* some mdadm versions failed to set ->orig_family_num, in which |
2339 | * case fall back to ->family_num. orig_family_num will be | |
2340 | * fixed up with the first metadata update. | |
2341 | */ | |
2342 | family_num = super->anchor->orig_family_num; | |
2343 | if (family_num == 0) | |
2344 | family_num = super->anchor->family_num; | |
51006d85 | 2345 | sha1_init_ctx(&ctx); |
92bd8f8d | 2346 | sha1_process_bytes(super->anchor->sig, MPB_SIG_LEN, &ctx); |
148acb7b | 2347 | sha1_process_bytes(&family_num, sizeof(__u32), &ctx); |
51006d85 N |
2348 | if (super->current_vol >= 0) |
2349 | dev = get_imsm_dev(super, super->current_vol); | |
2350 | if (dev) { | |
2351 | __u32 vol = super->current_vol; | |
2352 | sha1_process_bytes(&vol, sizeof(vol), &ctx); | |
2353 | sha1_process_bytes(dev->volume, MAX_RAID_SERIAL_LEN, &ctx); | |
2354 | } | |
2355 | sha1_finish_ctx(&ctx, buf); | |
2356 | memcpy(uuid, buf, 4*4); | |
cdddbdbc DW |
2357 | } |
2358 | ||
0d481d37 | 2359 | #if 0 |
4f5bc454 DW |
2360 | static void |
2361 | get_imsm_numerical_version(struct imsm_super *mpb, int *m, int *p) | |
cdddbdbc | 2362 | { |
cdddbdbc DW |
2363 | __u8 *v = get_imsm_version(mpb); |
2364 | __u8 *end = mpb->sig + MAX_SIGNATURE_LENGTH; | |
2365 | char major[] = { 0, 0, 0 }; | |
2366 | char minor[] = { 0 ,0, 0 }; | |
2367 | char patch[] = { 0, 0, 0 }; | |
2368 | char *ver_parse[] = { major, minor, patch }; | |
2369 | int i, j; | |
2370 | ||
2371 | i = j = 0; | |
2372 | while (*v != '\0' && v < end) { | |
2373 | if (*v != '.' && j < 2) | |
2374 | ver_parse[i][j++] = *v; | |
2375 | else { | |
2376 | i++; | |
2377 | j = 0; | |
2378 | } | |
2379 | v++; | |
2380 | } | |
2381 | ||
4f5bc454 DW |
2382 | *m = strtol(minor, NULL, 0); |
2383 | *p = strtol(patch, NULL, 0); | |
2384 | } | |
0d481d37 | 2385 | #endif |
4f5bc454 | 2386 | |
1e5c6983 DW |
2387 | static __u32 migr_strip_blocks_resync(struct imsm_dev *dev) |
2388 | { | |
2389 | /* migr_strip_size when repairing or initializing parity */ | |
238c0a71 | 2390 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
1e5c6983 DW |
2391 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); |
2392 | ||
2393 | switch (get_imsm_raid_level(map)) { | |
2394 | case 5: | |
2395 | case 10: | |
2396 | return chunk; | |
2397 | default: | |
2398 | return 128*1024 >> 9; | |
2399 | } | |
2400 | } | |
2401 | ||
2402 | static __u32 migr_strip_blocks_rebuild(struct imsm_dev *dev) | |
2403 | { | |
2404 | /* migr_strip_size when rebuilding a degraded disk, no idea why | |
2405 | * this is different than migr_strip_size_resync(), but it's good | |
2406 | * to be compatible | |
2407 | */ | |
238c0a71 | 2408 | struct imsm_map *map = get_imsm_map(dev, MAP_1); |
1e5c6983 DW |
2409 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); |
2410 | ||
2411 | switch (get_imsm_raid_level(map)) { | |
2412 | case 1: | |
2413 | case 10: | |
2414 | if (map->num_members % map->num_domains == 0) | |
2415 | return 128*1024 >> 9; | |
2416 | else | |
2417 | return chunk; | |
2418 | case 5: | |
2419 | return max((__u32) 64*1024 >> 9, chunk); | |
2420 | default: | |
2421 | return 128*1024 >> 9; | |
2422 | } | |
2423 | } | |
2424 | ||
2425 | static __u32 num_stripes_per_unit_resync(struct imsm_dev *dev) | |
2426 | { | |
238c0a71 AK |
2427 | struct imsm_map *lo = get_imsm_map(dev, MAP_0); |
2428 | struct imsm_map *hi = get_imsm_map(dev, MAP_1); | |
1e5c6983 DW |
2429 | __u32 lo_chunk = __le32_to_cpu(lo->blocks_per_strip); |
2430 | __u32 hi_chunk = __le32_to_cpu(hi->blocks_per_strip); | |
2431 | ||
2432 | return max((__u32) 1, hi_chunk / lo_chunk); | |
2433 | } | |
2434 | ||
2435 | static __u32 num_stripes_per_unit_rebuild(struct imsm_dev *dev) | |
2436 | { | |
238c0a71 | 2437 | struct imsm_map *lo = get_imsm_map(dev, MAP_0); |
1e5c6983 DW |
2438 | int level = get_imsm_raid_level(lo); |
2439 | ||
2440 | if (level == 1 || level == 10) { | |
238c0a71 | 2441 | struct imsm_map *hi = get_imsm_map(dev, MAP_1); |
1e5c6983 DW |
2442 | |
2443 | return hi->num_domains; | |
2444 | } else | |
2445 | return num_stripes_per_unit_resync(dev); | |
2446 | } | |
2447 | ||
98130f40 | 2448 | static __u8 imsm_num_data_members(struct imsm_dev *dev, int second_map) |
1e5c6983 DW |
2449 | { |
2450 | /* named 'imsm_' because raid0, raid1 and raid10 | |
2451 | * counter-intuitively have the same number of data disks | |
2452 | */ | |
98130f40 | 2453 | struct imsm_map *map = get_imsm_map(dev, second_map); |
1e5c6983 DW |
2454 | |
2455 | switch (get_imsm_raid_level(map)) { | |
2456 | case 0: | |
36fd8ccc AK |
2457 | return map->num_members; |
2458 | break; | |
1e5c6983 DW |
2459 | case 1: |
2460 | case 10: | |
36fd8ccc | 2461 | return map->num_members/2; |
1e5c6983 DW |
2462 | case 5: |
2463 | return map->num_members - 1; | |
2464 | default: | |
1ade5cc1 | 2465 | dprintf("unsupported raid level\n"); |
1e5c6983 DW |
2466 | return 0; |
2467 | } | |
2468 | } | |
2469 | ||
2470 | static __u32 parity_segment_depth(struct imsm_dev *dev) | |
2471 | { | |
238c0a71 | 2472 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
1e5c6983 DW |
2473 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); |
2474 | ||
2475 | switch(get_imsm_raid_level(map)) { | |
2476 | case 1: | |
2477 | case 10: | |
2478 | return chunk * map->num_domains; | |
2479 | case 5: | |
2480 | return chunk * map->num_members; | |
2481 | default: | |
2482 | return chunk; | |
2483 | } | |
2484 | } | |
2485 | ||
2486 | static __u32 map_migr_block(struct imsm_dev *dev, __u32 block) | |
2487 | { | |
238c0a71 | 2488 | struct imsm_map *map = get_imsm_map(dev, MAP_1); |
1e5c6983 DW |
2489 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); |
2490 | __u32 strip = block / chunk; | |
2491 | ||
2492 | switch (get_imsm_raid_level(map)) { | |
2493 | case 1: | |
2494 | case 10: { | |
2495 | __u32 vol_strip = (strip * map->num_domains) + 1; | |
2496 | __u32 vol_stripe = vol_strip / map->num_members; | |
2497 | ||
2498 | return vol_stripe * chunk + block % chunk; | |
2499 | } case 5: { | |
2500 | __u32 stripe = strip / (map->num_members - 1); | |
2501 | ||
2502 | return stripe * chunk + block % chunk; | |
2503 | } | |
2504 | default: | |
2505 | return 0; | |
2506 | } | |
2507 | } | |
2508 | ||
c47b0ff6 AK |
2509 | static __u64 blocks_per_migr_unit(struct intel_super *super, |
2510 | struct imsm_dev *dev) | |
1e5c6983 DW |
2511 | { |
2512 | /* calculate the conversion factor between per member 'blocks' | |
2513 | * (md/{resync,rebuild}_start) and imsm migration units, return | |
2514 | * 0 for the 'not migrating' and 'unsupported migration' cases | |
2515 | */ | |
2516 | if (!dev->vol.migr_state) | |
2517 | return 0; | |
2518 | ||
2519 | switch (migr_type(dev)) { | |
c47b0ff6 AK |
2520 | case MIGR_GEN_MIGR: { |
2521 | struct migr_record *migr_rec = super->migr_rec; | |
2522 | return __le32_to_cpu(migr_rec->blocks_per_unit); | |
2523 | } | |
1e5c6983 DW |
2524 | case MIGR_VERIFY: |
2525 | case MIGR_REPAIR: | |
2526 | case MIGR_INIT: { | |
238c0a71 | 2527 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
1e5c6983 DW |
2528 | __u32 stripes_per_unit; |
2529 | __u32 blocks_per_unit; | |
2530 | __u32 parity_depth; | |
2531 | __u32 migr_chunk; | |
2532 | __u32 block_map; | |
2533 | __u32 block_rel; | |
2534 | __u32 segment; | |
2535 | __u32 stripe; | |
2536 | __u8 disks; | |
2537 | ||
2538 | /* yes, this is really the translation of migr_units to | |
2539 | * per-member blocks in the 'resync' case | |
2540 | */ | |
2541 | stripes_per_unit = num_stripes_per_unit_resync(dev); | |
2542 | migr_chunk = migr_strip_blocks_resync(dev); | |
238c0a71 | 2543 | disks = imsm_num_data_members(dev, MAP_0); |
1e5c6983 | 2544 | blocks_per_unit = stripes_per_unit * migr_chunk * disks; |
7b1ab482 | 2545 | stripe = __le16_to_cpu(map->blocks_per_strip) * disks; |
1e5c6983 DW |
2546 | segment = blocks_per_unit / stripe; |
2547 | block_rel = blocks_per_unit - segment * stripe; | |
2548 | parity_depth = parity_segment_depth(dev); | |
2549 | block_map = map_migr_block(dev, block_rel); | |
2550 | return block_map + parity_depth * segment; | |
2551 | } | |
2552 | case MIGR_REBUILD: { | |
2553 | __u32 stripes_per_unit; | |
2554 | __u32 migr_chunk; | |
2555 | ||
2556 | stripes_per_unit = num_stripes_per_unit_rebuild(dev); | |
2557 | migr_chunk = migr_strip_blocks_rebuild(dev); | |
2558 | return migr_chunk * stripes_per_unit; | |
2559 | } | |
1e5c6983 DW |
2560 | case MIGR_STATE_CHANGE: |
2561 | default: | |
2562 | return 0; | |
2563 | } | |
2564 | } | |
2565 | ||
c2c087e6 DW |
2566 | static int imsm_level_to_layout(int level) |
2567 | { | |
2568 | switch (level) { | |
2569 | case 0: | |
2570 | case 1: | |
2571 | return 0; | |
2572 | case 5: | |
2573 | case 6: | |
a380c027 | 2574 | return ALGORITHM_LEFT_ASYMMETRIC; |
c2c087e6 | 2575 | case 10: |
c92a2527 | 2576 | return 0x102; |
c2c087e6 | 2577 | } |
a18a888e | 2578 | return UnSet; |
c2c087e6 DW |
2579 | } |
2580 | ||
8e59f3d8 AK |
2581 | /******************************************************************************* |
2582 | * Function: read_imsm_migr_rec | |
2583 | * Description: Function reads imsm migration record from last sector of disk | |
2584 | * Parameters: | |
2585 | * fd : disk descriptor | |
2586 | * super : metadata info | |
2587 | * Returns: | |
2588 | * 0 : success, | |
2589 | * -1 : fail | |
2590 | ******************************************************************************/ | |
2591 | static int read_imsm_migr_rec(int fd, struct intel_super *super) | |
2592 | { | |
2593 | int ret_val = -1; | |
de44e46f | 2594 | unsigned int sector_size = super->sector_size; |
8e59f3d8 AK |
2595 | unsigned long long dsize; |
2596 | ||
2597 | get_dev_size(fd, NULL, &dsize); | |
de44e46f PB |
2598 | if (lseek64(fd, dsize - (sector_size*MIGR_REC_SECTOR_POSITION), |
2599 | SEEK_SET) < 0) { | |
e7b84f9d N |
2600 | pr_err("Cannot seek to anchor block: %s\n", |
2601 | strerror(errno)); | |
8e59f3d8 AK |
2602 | goto out; |
2603 | } | |
de44e46f PB |
2604 | if (read(fd, super->migr_rec_buf, |
2605 | MIGR_REC_BUF_SECTORS*sector_size) != | |
2606 | MIGR_REC_BUF_SECTORS*sector_size) { | |
e7b84f9d N |
2607 | pr_err("Cannot read migr record block: %s\n", |
2608 | strerror(errno)); | |
8e59f3d8 AK |
2609 | goto out; |
2610 | } | |
2611 | ret_val = 0; | |
de44e46f PB |
2612 | if (sector_size == 4096) |
2613 | convert_from_4k_imsm_migr_rec(super); | |
8e59f3d8 AK |
2614 | |
2615 | out: | |
2616 | return ret_val; | |
2617 | } | |
2618 | ||
3136abe5 AK |
2619 | static struct imsm_dev *imsm_get_device_during_migration( |
2620 | struct intel_super *super) | |
2621 | { | |
2622 | ||
2623 | struct intel_dev *dv; | |
2624 | ||
2625 | for (dv = super->devlist; dv; dv = dv->next) { | |
2626 | if (is_gen_migration(dv->dev)) | |
2627 | return dv->dev; | |
2628 | } | |
2629 | return NULL; | |
2630 | } | |
2631 | ||
8e59f3d8 AK |
2632 | /******************************************************************************* |
2633 | * Function: load_imsm_migr_rec | |
2634 | * Description: Function reads imsm migration record (it is stored at the last | |
2635 | * sector of disk) | |
2636 | * Parameters: | |
2637 | * super : imsm internal array info | |
2638 | * info : general array info | |
2639 | * Returns: | |
2640 | * 0 : success | |
2641 | * -1 : fail | |
4c965cc9 | 2642 | * -2 : no migration in progress |
8e59f3d8 AK |
2643 | ******************************************************************************/ |
2644 | static int load_imsm_migr_rec(struct intel_super *super, struct mdinfo *info) | |
2645 | { | |
2646 | struct mdinfo *sd; | |
594dc1b8 | 2647 | struct dl *dl; |
8e59f3d8 AK |
2648 | char nm[30]; |
2649 | int retval = -1; | |
2650 | int fd = -1; | |
3136abe5 | 2651 | struct imsm_dev *dev; |
594dc1b8 | 2652 | struct imsm_map *map; |
b4ab44d8 | 2653 | int slot = -1; |
3136abe5 AK |
2654 | |
2655 | /* find map under migration */ | |
2656 | dev = imsm_get_device_during_migration(super); | |
2657 | /* nothing to load,no migration in progress? | |
2658 | */ | |
2659 | if (dev == NULL) | |
4c965cc9 | 2660 | return -2; |
8e59f3d8 AK |
2661 | |
2662 | if (info) { | |
2663 | for (sd = info->devs ; sd ; sd = sd->next) { | |
2664 | /* read only from one of the first two slots */ | |
12fe93e9 TM |
2665 | if ((sd->disk.raid_disk < 0) || |
2666 | (sd->disk.raid_disk > 1)) | |
8e59f3d8 | 2667 | continue; |
3136abe5 | 2668 | |
8e59f3d8 AK |
2669 | sprintf(nm, "%d:%d", sd->disk.major, sd->disk.minor); |
2670 | fd = dev_open(nm, O_RDONLY); | |
2671 | if (fd >= 0) | |
2672 | break; | |
2673 | } | |
2674 | } | |
2675 | if (fd < 0) { | |
12fe93e9 | 2676 | map = get_imsm_map(dev, MAP_0); |
8e59f3d8 | 2677 | for (dl = super->disks; dl; dl = dl->next) { |
3136abe5 AK |
2678 | /* skip spare and failed disks |
2679 | */ | |
2680 | if (dl->index < 0) | |
2681 | continue; | |
8e59f3d8 | 2682 | /* read only from one of the first two slots */ |
3136abe5 AK |
2683 | if (map) |
2684 | slot = get_imsm_disk_slot(map, dl->index); | |
089f9d79 | 2685 | if (map == NULL || slot > 1 || slot < 0) |
8e59f3d8 AK |
2686 | continue; |
2687 | sprintf(nm, "%d:%d", dl->major, dl->minor); | |
2688 | fd = dev_open(nm, O_RDONLY); | |
2689 | if (fd >= 0) | |
2690 | break; | |
2691 | } | |
2692 | } | |
2693 | if (fd < 0) | |
2694 | goto out; | |
2695 | retval = read_imsm_migr_rec(fd, super); | |
2696 | ||
2697 | out: | |
2698 | if (fd >= 0) | |
2699 | close(fd); | |
2700 | return retval; | |
2701 | } | |
2702 | ||
9e2d750d | 2703 | #ifndef MDASSEMBLE |
c17608ea AK |
2704 | /******************************************************************************* |
2705 | * function: imsm_create_metadata_checkpoint_update | |
2706 | * Description: It creates update for checkpoint change. | |
2707 | * Parameters: | |
2708 | * super : imsm internal array info | |
2709 | * u : pointer to prepared update | |
2710 | * Returns: | |
2711 | * Uptate length. | |
2712 | * If length is equal to 0, input pointer u contains no update | |
2713 | ******************************************************************************/ | |
2714 | static int imsm_create_metadata_checkpoint_update( | |
2715 | struct intel_super *super, | |
2716 | struct imsm_update_general_migration_checkpoint **u) | |
2717 | { | |
2718 | ||
2719 | int update_memory_size = 0; | |
2720 | ||
1ade5cc1 | 2721 | dprintf("(enter)\n"); |
c17608ea AK |
2722 | |
2723 | if (u == NULL) | |
2724 | return 0; | |
2725 | *u = NULL; | |
2726 | ||
2727 | /* size of all update data without anchor */ | |
2728 | update_memory_size = | |
2729 | sizeof(struct imsm_update_general_migration_checkpoint); | |
2730 | ||
503975b9 | 2731 | *u = xcalloc(1, update_memory_size); |
c17608ea | 2732 | if (*u == NULL) { |
1ade5cc1 | 2733 | dprintf("error: cannot get memory\n"); |
c17608ea AK |
2734 | return 0; |
2735 | } | |
2736 | (*u)->type = update_general_migration_checkpoint; | |
2737 | (*u)->curr_migr_unit = __le32_to_cpu(super->migr_rec->curr_migr_unit); | |
1ade5cc1 | 2738 | dprintf("prepared for %u\n", (*u)->curr_migr_unit); |
c17608ea AK |
2739 | |
2740 | return update_memory_size; | |
2741 | } | |
2742 | ||
c17608ea AK |
2743 | static void imsm_update_metadata_locally(struct supertype *st, |
2744 | void *buf, int len); | |
2745 | ||
687629c2 AK |
2746 | /******************************************************************************* |
2747 | * Function: write_imsm_migr_rec | |
2748 | * Description: Function writes imsm migration record | |
2749 | * (at the last sector of disk) | |
2750 | * Parameters: | |
2751 | * super : imsm internal array info | |
2752 | * Returns: | |
2753 | * 0 : success | |
2754 | * -1 : if fail | |
2755 | ******************************************************************************/ | |
2756 | static int write_imsm_migr_rec(struct supertype *st) | |
2757 | { | |
2758 | struct intel_super *super = st->sb; | |
de44e46f | 2759 | unsigned int sector_size = super->sector_size; |
687629c2 AK |
2760 | unsigned long long dsize; |
2761 | char nm[30]; | |
2762 | int fd = -1; | |
2763 | int retval = -1; | |
2764 | struct dl *sd; | |
c17608ea AK |
2765 | int len; |
2766 | struct imsm_update_general_migration_checkpoint *u; | |
3136abe5 | 2767 | struct imsm_dev *dev; |
594dc1b8 | 2768 | struct imsm_map *map; |
3136abe5 AK |
2769 | |
2770 | /* find map under migration */ | |
2771 | dev = imsm_get_device_during_migration(super); | |
2772 | /* if no migration, write buffer anyway to clear migr_record | |
2773 | * on disk based on first available device | |
2774 | */ | |
2775 | if (dev == NULL) | |
2776 | dev = get_imsm_dev(super, super->current_vol < 0 ? 0 : | |
2777 | super->current_vol); | |
2778 | ||
44bfe6df | 2779 | map = get_imsm_map(dev, MAP_0); |
687629c2 | 2780 | |
de44e46f PB |
2781 | if (sector_size == 4096) |
2782 | convert_to_4k_imsm_migr_rec(super); | |
687629c2 | 2783 | for (sd = super->disks ; sd ; sd = sd->next) { |
b4ab44d8 | 2784 | int slot = -1; |
3136abe5 AK |
2785 | |
2786 | /* skip failed and spare devices */ | |
2787 | if (sd->index < 0) | |
2788 | continue; | |
687629c2 | 2789 | /* write to 2 first slots only */ |
3136abe5 AK |
2790 | if (map) |
2791 | slot = get_imsm_disk_slot(map, sd->index); | |
089f9d79 | 2792 | if (map == NULL || slot > 1 || slot < 0) |
687629c2 | 2793 | continue; |
3136abe5 | 2794 | |
687629c2 AK |
2795 | sprintf(nm, "%d:%d", sd->major, sd->minor); |
2796 | fd = dev_open(nm, O_RDWR); | |
2797 | if (fd < 0) | |
2798 | continue; | |
2799 | get_dev_size(fd, NULL, &dsize); | |
de44e46f PB |
2800 | if (lseek64(fd, dsize - (MIGR_REC_SECTOR_POSITION*sector_size), |
2801 | SEEK_SET) < 0) { | |
e7b84f9d N |
2802 | pr_err("Cannot seek to anchor block: %s\n", |
2803 | strerror(errno)); | |
687629c2 AK |
2804 | goto out; |
2805 | } | |
de44e46f PB |
2806 | if (write(fd, super->migr_rec_buf, |
2807 | MIGR_REC_BUF_SECTORS*sector_size) != | |
2808 | MIGR_REC_BUF_SECTORS*sector_size) { | |
e7b84f9d N |
2809 | pr_err("Cannot write migr record block: %s\n", |
2810 | strerror(errno)); | |
687629c2 AK |
2811 | goto out; |
2812 | } | |
2813 | close(fd); | |
2814 | fd = -1; | |
2815 | } | |
de44e46f PB |
2816 | if (sector_size == 4096) |
2817 | convert_from_4k_imsm_migr_rec(super); | |
c17608ea AK |
2818 | /* update checkpoint information in metadata */ |
2819 | len = imsm_create_metadata_checkpoint_update(super, &u); | |
c17608ea AK |
2820 | if (len <= 0) { |
2821 | dprintf("imsm: Cannot prepare update\n"); | |
2822 | goto out; | |
2823 | } | |
2824 | /* update metadata locally */ | |
2825 | imsm_update_metadata_locally(st, u, len); | |
2826 | /* and possibly remotely */ | |
2827 | if (st->update_tail) { | |
2828 | append_metadata_update(st, u, len); | |
2829 | /* during reshape we do all work inside metadata handler | |
2830 | * manage_reshape(), so metadata update has to be triggered | |
2831 | * insida it | |
2832 | */ | |
2833 | flush_metadata_updates(st); | |
2834 | st->update_tail = &st->updates; | |
2835 | } else | |
2836 | free(u); | |
687629c2 AK |
2837 | |
2838 | retval = 0; | |
2839 | out: | |
2840 | if (fd >= 0) | |
2841 | close(fd); | |
2842 | return retval; | |
2843 | } | |
9e2d750d | 2844 | #endif /* MDASSEMBLE */ |
687629c2 | 2845 | |
e2962bfc AK |
2846 | /* spare/missing disks activations are not allowe when |
2847 | * array/container performs reshape operation, because | |
2848 | * all arrays in container works on the same disks set | |
2849 | */ | |
2850 | int imsm_reshape_blocks_arrays_changes(struct intel_super *super) | |
2851 | { | |
2852 | int rv = 0; | |
2853 | struct intel_dev *i_dev; | |
2854 | struct imsm_dev *dev; | |
2855 | ||
2856 | /* check whole container | |
2857 | */ | |
2858 | for (i_dev = super->devlist; i_dev; i_dev = i_dev->next) { | |
2859 | dev = i_dev->dev; | |
3ad25638 | 2860 | if (is_gen_migration(dev)) { |
e2962bfc AK |
2861 | /* No repair during any migration in container |
2862 | */ | |
2863 | rv = 1; | |
2864 | break; | |
2865 | } | |
2866 | } | |
2867 | return rv; | |
2868 | } | |
c41e00b2 AK |
2869 | static unsigned long long imsm_component_size_aligment_check(int level, |
2870 | int chunk_size, | |
f36a9ecd | 2871 | unsigned int sector_size, |
c41e00b2 AK |
2872 | unsigned long long component_size) |
2873 | { | |
2874 | unsigned int component_size_alligment; | |
2875 | ||
2876 | /* check component size aligment | |
2877 | */ | |
f36a9ecd | 2878 | component_size_alligment = component_size % (chunk_size/sector_size); |
c41e00b2 | 2879 | |
1ade5cc1 | 2880 | dprintf("(Level: %i, chunk_size = %i, component_size = %llu), component_size_alligment = %u\n", |
c41e00b2 AK |
2881 | level, chunk_size, component_size, |
2882 | component_size_alligment); | |
2883 | ||
2884 | if (component_size_alligment && (level != 1) && (level != UnSet)) { | |
2885 | dprintf("imsm: reported component size alligned from %llu ", | |
2886 | component_size); | |
2887 | component_size -= component_size_alligment; | |
1ade5cc1 | 2888 | dprintf_cont("to %llu (%i).\n", |
c41e00b2 AK |
2889 | component_size, component_size_alligment); |
2890 | } | |
2891 | ||
2892 | return component_size; | |
2893 | } | |
e2962bfc | 2894 | |
a5d85af7 | 2895 | static void getinfo_super_imsm_volume(struct supertype *st, struct mdinfo *info, char *dmap) |
bf5a934a DW |
2896 | { |
2897 | struct intel_super *super = st->sb; | |
c47b0ff6 | 2898 | struct migr_record *migr_rec = super->migr_rec; |
949c47a0 | 2899 | struct imsm_dev *dev = get_imsm_dev(super, super->current_vol); |
238c0a71 AK |
2900 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
2901 | struct imsm_map *prev_map = get_imsm_map(dev, MAP_1); | |
b335e593 | 2902 | struct imsm_map *map_to_analyse = map; |
efb30e7f | 2903 | struct dl *dl; |
a5d85af7 | 2904 | int map_disks = info->array.raid_disks; |
bf5a934a | 2905 | |
95eeceeb | 2906 | memset(info, 0, sizeof(*info)); |
b335e593 AK |
2907 | if (prev_map) |
2908 | map_to_analyse = prev_map; | |
2909 | ||
ca0748fa | 2910 | dl = super->current_disk; |
9894ec0d | 2911 | |
bf5a934a | 2912 | info->container_member = super->current_vol; |
cd0430a1 | 2913 | info->array.raid_disks = map->num_members; |
b335e593 | 2914 | info->array.level = get_imsm_raid_level(map_to_analyse); |
bf5a934a DW |
2915 | info->array.layout = imsm_level_to_layout(info->array.level); |
2916 | info->array.md_minor = -1; | |
2917 | info->array.ctime = 0; | |
2918 | info->array.utime = 0; | |
b335e593 AK |
2919 | info->array.chunk_size = |
2920 | __le16_to_cpu(map_to_analyse->blocks_per_strip) << 9; | |
301406c9 | 2921 | info->array.state = !dev->vol.dirty; |
da9b4a62 DW |
2922 | info->custom_array_size = __le32_to_cpu(dev->size_high); |
2923 | info->custom_array_size <<= 32; | |
2924 | info->custom_array_size |= __le32_to_cpu(dev->size_low); | |
3ad25638 AK |
2925 | info->recovery_blocked = imsm_reshape_blocks_arrays_changes(st->sb); |
2926 | ||
3f510843 | 2927 | if (is_gen_migration(dev)) { |
3f83228a | 2928 | info->reshape_active = 1; |
b335e593 AK |
2929 | info->new_level = get_imsm_raid_level(map); |
2930 | info->new_layout = imsm_level_to_layout(info->new_level); | |
2931 | info->new_chunk = __le16_to_cpu(map->blocks_per_strip) << 9; | |
3f83228a | 2932 | info->delta_disks = map->num_members - prev_map->num_members; |
493f5dd6 N |
2933 | if (info->delta_disks) { |
2934 | /* this needs to be applied to every array | |
2935 | * in the container. | |
2936 | */ | |
81219e70 | 2937 | info->reshape_active = CONTAINER_RESHAPE; |
493f5dd6 | 2938 | } |
3f83228a N |
2939 | /* We shape information that we give to md might have to be |
2940 | * modify to cope with md's requirement for reshaping arrays. | |
2941 | * For example, when reshaping a RAID0, md requires it to be | |
2942 | * presented as a degraded RAID4. | |
2943 | * Also if a RAID0 is migrating to a RAID5 we need to specify | |
2944 | * the array as already being RAID5, but the 'before' layout | |
2945 | * is a RAID4-like layout. | |
2946 | */ | |
2947 | switch (info->array.level) { | |
2948 | case 0: | |
2949 | switch(info->new_level) { | |
2950 | case 0: | |
2951 | /* conversion is happening as RAID4 */ | |
2952 | info->array.level = 4; | |
2953 | info->array.raid_disks += 1; | |
2954 | break; | |
2955 | case 5: | |
2956 | /* conversion is happening as RAID5 */ | |
2957 | info->array.level = 5; | |
2958 | info->array.layout = ALGORITHM_PARITY_N; | |
3f83228a N |
2959 | info->delta_disks -= 1; |
2960 | break; | |
2961 | default: | |
2962 | /* FIXME error message */ | |
2963 | info->array.level = UnSet; | |
2964 | break; | |
2965 | } | |
2966 | break; | |
2967 | } | |
b335e593 AK |
2968 | } else { |
2969 | info->new_level = UnSet; | |
2970 | info->new_layout = UnSet; | |
2971 | info->new_chunk = info->array.chunk_size; | |
3f83228a | 2972 | info->delta_disks = 0; |
b335e593 | 2973 | } |
ca0748fa | 2974 | |
efb30e7f DW |
2975 | if (dl) { |
2976 | info->disk.major = dl->major; | |
2977 | info->disk.minor = dl->minor; | |
ca0748fa | 2978 | info->disk.number = dl->index; |
656b6b5a N |
2979 | info->disk.raid_disk = get_imsm_disk_slot(map_to_analyse, |
2980 | dl->index); | |
efb30e7f | 2981 | } |
bf5a934a | 2982 | |
5551b113 | 2983 | info->data_offset = pba_of_lba0(map_to_analyse); |
06fb291a PB |
2984 | |
2985 | if (info->array.level == 5) { | |
2986 | info->component_size = num_data_stripes(map_to_analyse) * | |
2987 | map_to_analyse->blocks_per_strip; | |
2988 | } else { | |
2989 | info->component_size = blocks_per_member(map_to_analyse); | |
2990 | } | |
139dae11 | 2991 | |
c41e00b2 AK |
2992 | info->component_size = imsm_component_size_aligment_check( |
2993 | info->array.level, | |
2994 | info->array.chunk_size, | |
f36a9ecd | 2995 | super->sector_size, |
c41e00b2 | 2996 | info->component_size); |
139dae11 | 2997 | |
301406c9 | 2998 | memset(info->uuid, 0, sizeof(info->uuid)); |
921d9e16 | 2999 | info->recovery_start = MaxSector; |
bf5a934a | 3000 | |
d2e6d5d6 | 3001 | info->reshape_progress = 0; |
b6796ce1 | 3002 | info->resync_start = MaxSector; |
b9172665 AK |
3003 | if ((map_to_analyse->map_state == IMSM_T_STATE_UNINITIALIZED || |
3004 | dev->vol.dirty) && | |
3005 | imsm_reshape_blocks_arrays_changes(super) == 0) { | |
301406c9 | 3006 | info->resync_start = 0; |
b6796ce1 AK |
3007 | } |
3008 | if (dev->vol.migr_state) { | |
1e5c6983 DW |
3009 | switch (migr_type(dev)) { |
3010 | case MIGR_REPAIR: | |
3011 | case MIGR_INIT: { | |
c47b0ff6 AK |
3012 | __u64 blocks_per_unit = blocks_per_migr_unit(super, |
3013 | dev); | |
1e5c6983 DW |
3014 | __u64 units = __le32_to_cpu(dev->vol.curr_migr_unit); |
3015 | ||
3016 | info->resync_start = blocks_per_unit * units; | |
3017 | break; | |
3018 | } | |
d2e6d5d6 | 3019 | case MIGR_GEN_MIGR: { |
c47b0ff6 AK |
3020 | __u64 blocks_per_unit = blocks_per_migr_unit(super, |
3021 | dev); | |
3022 | __u64 units = __le32_to_cpu(migr_rec->curr_migr_unit); | |
04fa9523 AK |
3023 | unsigned long long array_blocks; |
3024 | int used_disks; | |
d2e6d5d6 | 3025 | |
befb629b AK |
3026 | if (__le32_to_cpu(migr_rec->ascending_migr) && |
3027 | (units < | |
3028 | (__le32_to_cpu(migr_rec->num_migr_units)-1)) && | |
3029 | (super->migr_rec->rec_status == | |
3030 | __cpu_to_le32(UNIT_SRC_IN_CP_AREA))) | |
3031 | units++; | |
3032 | ||
d2e6d5d6 | 3033 | info->reshape_progress = blocks_per_unit * units; |
6289d1e0 | 3034 | |
7a862a02 | 3035 | dprintf("IMSM: General Migration checkpoint : %llu (%llu) -> read reshape progress : %llu\n", |
19986c72 MB |
3036 | (unsigned long long)units, |
3037 | (unsigned long long)blocks_per_unit, | |
3038 | info->reshape_progress); | |
75156c46 | 3039 | |
238c0a71 | 3040 | used_disks = imsm_num_data_members(dev, MAP_1); |
75156c46 | 3041 | if (used_disks > 0) { |
5551b113 | 3042 | array_blocks = blocks_per_member(map) * |
75156c46 AK |
3043 | used_disks; |
3044 | /* round array size down to closest MB | |
3045 | */ | |
3046 | info->custom_array_size = (array_blocks | |
3047 | >> SECT_PER_MB_SHIFT) | |
3048 | << SECT_PER_MB_SHIFT; | |
3049 | } | |
d2e6d5d6 | 3050 | } |
1e5c6983 DW |
3051 | case MIGR_VERIFY: |
3052 | /* we could emulate the checkpointing of | |
3053 | * 'sync_action=check' migrations, but for now | |
3054 | * we just immediately complete them | |
3055 | */ | |
3056 | case MIGR_REBUILD: | |
3057 | /* this is handled by container_content_imsm() */ | |
1e5c6983 DW |
3058 | case MIGR_STATE_CHANGE: |
3059 | /* FIXME handle other migrations */ | |
3060 | default: | |
3061 | /* we are not dirty, so... */ | |
3062 | info->resync_start = MaxSector; | |
3063 | } | |
b6796ce1 | 3064 | } |
301406c9 DW |
3065 | |
3066 | strncpy(info->name, (char *) dev->volume, MAX_RAID_SERIAL_LEN); | |
3067 | info->name[MAX_RAID_SERIAL_LEN] = 0; | |
bf5a934a | 3068 | |
f35f2525 N |
3069 | info->array.major_version = -1; |
3070 | info->array.minor_version = -2; | |
4dd2df09 | 3071 | sprintf(info->text_version, "/%s/%d", st->container_devnm, info->container_member); |
a67dd8cc | 3072 | info->safe_mode_delay = 4000; /* 4 secs like the Matrix driver */ |
51006d85 | 3073 | uuid_from_super_imsm(st, info->uuid); |
a5d85af7 N |
3074 | |
3075 | if (dmap) { | |
3076 | int i, j; | |
3077 | for (i=0; i<map_disks; i++) { | |
3078 | dmap[i] = 0; | |
3079 | if (i < info->array.raid_disks) { | |
3080 | struct imsm_disk *dsk; | |
238c0a71 | 3081 | j = get_imsm_disk_idx(dev, i, MAP_X); |
a5d85af7 N |
3082 | dsk = get_imsm_disk(super, j); |
3083 | if (dsk && (dsk->status & CONFIGURED_DISK)) | |
3084 | dmap[i] = 1; | |
3085 | } | |
3086 | } | |
3087 | } | |
81ac8b4d | 3088 | } |
bf5a934a | 3089 | |
3b451610 AK |
3090 | static __u8 imsm_check_degraded(struct intel_super *super, struct imsm_dev *dev, |
3091 | int failed, int look_in_map); | |
3092 | ||
3093 | static int imsm_count_failed(struct intel_super *super, struct imsm_dev *dev, | |
3094 | int look_in_map); | |
3095 | ||
b4ab44d8 | 3096 | #ifndef MDASSEMBLE |
3b451610 AK |
3097 | static void manage_second_map(struct intel_super *super, struct imsm_dev *dev) |
3098 | { | |
3099 | if (is_gen_migration(dev)) { | |
3100 | int failed; | |
3101 | __u8 map_state; | |
3102 | struct imsm_map *map2 = get_imsm_map(dev, MAP_1); | |
3103 | ||
3104 | failed = imsm_count_failed(super, dev, MAP_1); | |
238c0a71 | 3105 | map_state = imsm_check_degraded(super, dev, failed, MAP_1); |
3b451610 AK |
3106 | if (map2->map_state != map_state) { |
3107 | map2->map_state = map_state; | |
3108 | super->updates_pending++; | |
3109 | } | |
3110 | } | |
3111 | } | |
b4ab44d8 | 3112 | #endif |
97b4d0e9 DW |
3113 | |
3114 | static struct imsm_disk *get_imsm_missing(struct intel_super *super, __u8 index) | |
3115 | { | |
3116 | struct dl *d; | |
3117 | ||
3118 | for (d = super->missing; d; d = d->next) | |
3119 | if (d->index == index) | |
3120 | return &d->disk; | |
3121 | return NULL; | |
3122 | } | |
3123 | ||
a5d85af7 | 3124 | static void getinfo_super_imsm(struct supertype *st, struct mdinfo *info, char *map) |
4f5bc454 DW |
3125 | { |
3126 | struct intel_super *super = st->sb; | |
4f5bc454 | 3127 | struct imsm_disk *disk; |
a5d85af7 | 3128 | int map_disks = info->array.raid_disks; |
ab3cb6b3 N |
3129 | int max_enough = -1; |
3130 | int i; | |
3131 | struct imsm_super *mpb; | |
4f5bc454 | 3132 | |
bf5a934a | 3133 | if (super->current_vol >= 0) { |
a5d85af7 | 3134 | getinfo_super_imsm_volume(st, info, map); |
bf5a934a DW |
3135 | return; |
3136 | } | |
95eeceeb | 3137 | memset(info, 0, sizeof(*info)); |
d23fe947 DW |
3138 | |
3139 | /* Set raid_disks to zero so that Assemble will always pull in valid | |
3140 | * spares | |
3141 | */ | |
3142 | info->array.raid_disks = 0; | |
cdddbdbc DW |
3143 | info->array.level = LEVEL_CONTAINER; |
3144 | info->array.layout = 0; | |
3145 | info->array.md_minor = -1; | |
1011e834 | 3146 | info->array.ctime = 0; /* N/A for imsm */ |
cdddbdbc DW |
3147 | info->array.utime = 0; |
3148 | info->array.chunk_size = 0; | |
3149 | ||
3150 | info->disk.major = 0; | |
3151 | info->disk.minor = 0; | |
cdddbdbc | 3152 | info->disk.raid_disk = -1; |
c2c087e6 | 3153 | info->reshape_active = 0; |
f35f2525 N |
3154 | info->array.major_version = -1; |
3155 | info->array.minor_version = -2; | |
c2c087e6 | 3156 | strcpy(info->text_version, "imsm"); |
a67dd8cc | 3157 | info->safe_mode_delay = 0; |
c2c087e6 DW |
3158 | info->disk.number = -1; |
3159 | info->disk.state = 0; | |
c5afc314 | 3160 | info->name[0] = 0; |
921d9e16 | 3161 | info->recovery_start = MaxSector; |
3ad25638 | 3162 | info->recovery_blocked = imsm_reshape_blocks_arrays_changes(st->sb); |
c2c087e6 | 3163 | |
97b4d0e9 | 3164 | /* do we have the all the insync disks that we expect? */ |
ab3cb6b3 | 3165 | mpb = super->anchor; |
97b4d0e9 | 3166 | |
ab3cb6b3 N |
3167 | for (i = 0; i < mpb->num_raid_devs; i++) { |
3168 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
3169 | int failed, enough, j, missing = 0; | |
3170 | struct imsm_map *map; | |
3171 | __u8 state; | |
97b4d0e9 | 3172 | |
3b451610 AK |
3173 | failed = imsm_count_failed(super, dev, MAP_0); |
3174 | state = imsm_check_degraded(super, dev, failed, MAP_0); | |
238c0a71 | 3175 | map = get_imsm_map(dev, MAP_0); |
ab3cb6b3 N |
3176 | |
3177 | /* any newly missing disks? | |
3178 | * (catches single-degraded vs double-degraded) | |
3179 | */ | |
3180 | for (j = 0; j < map->num_members; j++) { | |
238c0a71 | 3181 | __u32 ord = get_imsm_ord_tbl_ent(dev, j, MAP_0); |
ab3cb6b3 N |
3182 | __u32 idx = ord_to_idx(ord); |
3183 | ||
3184 | if (!(ord & IMSM_ORD_REBUILD) && | |
3185 | get_imsm_missing(super, idx)) { | |
3186 | missing = 1; | |
3187 | break; | |
3188 | } | |
97b4d0e9 | 3189 | } |
ab3cb6b3 N |
3190 | |
3191 | if (state == IMSM_T_STATE_FAILED) | |
3192 | enough = -1; | |
3193 | else if (state == IMSM_T_STATE_DEGRADED && | |
3194 | (state != map->map_state || missing)) | |
3195 | enough = 0; | |
3196 | else /* we're normal, or already degraded */ | |
3197 | enough = 1; | |
d2bde6d3 AK |
3198 | if (is_gen_migration(dev) && missing) { |
3199 | /* during general migration we need all disks | |
3200 | * that process is running on. | |
3201 | * No new missing disk is allowed. | |
3202 | */ | |
3203 | max_enough = -1; | |
3204 | enough = -1; | |
3205 | /* no more checks necessary | |
3206 | */ | |
3207 | break; | |
3208 | } | |
ab3cb6b3 N |
3209 | /* in the missing/failed disk case check to see |
3210 | * if at least one array is runnable | |
3211 | */ | |
3212 | max_enough = max(max_enough, enough); | |
3213 | } | |
1ade5cc1 | 3214 | dprintf("enough: %d\n", max_enough); |
ab3cb6b3 | 3215 | info->container_enough = max_enough; |
97b4d0e9 | 3216 | |
4a04ec6c | 3217 | if (super->disks) { |
14e8215b DW |
3218 | __u32 reserved = imsm_reserved_sectors(super, super->disks); |
3219 | ||
b9f594fe | 3220 | disk = &super->disks->disk; |
5551b113 | 3221 | info->data_offset = total_blocks(&super->disks->disk) - reserved; |
14e8215b | 3222 | info->component_size = reserved; |
25ed7e59 | 3223 | info->disk.state = is_configured(disk) ? (1 << MD_DISK_ACTIVE) : 0; |
df474657 DW |
3224 | /* we don't change info->disk.raid_disk here because |
3225 | * this state will be finalized in mdmon after we have | |
3226 | * found the 'most fresh' version of the metadata | |
3227 | */ | |
25ed7e59 DW |
3228 | info->disk.state |= is_failed(disk) ? (1 << MD_DISK_FAULTY) : 0; |
3229 | info->disk.state |= is_spare(disk) ? 0 : (1 << MD_DISK_SYNC); | |
cdddbdbc | 3230 | } |
a575e2a7 DW |
3231 | |
3232 | /* only call uuid_from_super_imsm when this disk is part of a populated container, | |
3233 | * ->compare_super may have updated the 'num_raid_devs' field for spares | |
3234 | */ | |
3235 | if (info->disk.state & (1 << MD_DISK_SYNC) || super->anchor->num_raid_devs) | |
36ba7d48 | 3236 | uuid_from_super_imsm(st, info->uuid); |
22e263f6 AC |
3237 | else |
3238 | memcpy(info->uuid, uuid_zero, sizeof(uuid_zero)); | |
a5d85af7 N |
3239 | |
3240 | /* I don't know how to compute 'map' on imsm, so use safe default */ | |
3241 | if (map) { | |
3242 | int i; | |
3243 | for (i = 0; i < map_disks; i++) | |
3244 | map[i] = 1; | |
3245 | } | |
3246 | ||
cdddbdbc DW |
3247 | } |
3248 | ||
5c4cd5da AC |
3249 | /* allocates memory and fills disk in mdinfo structure |
3250 | * for each disk in array */ | |
3251 | struct mdinfo *getinfo_super_disks_imsm(struct supertype *st) | |
3252 | { | |
594dc1b8 | 3253 | struct mdinfo *mddev; |
5c4cd5da AC |
3254 | struct intel_super *super = st->sb; |
3255 | struct imsm_disk *disk; | |
3256 | int count = 0; | |
3257 | struct dl *dl; | |
3258 | if (!super || !super->disks) | |
3259 | return NULL; | |
3260 | dl = super->disks; | |
503975b9 | 3261 | mddev = xcalloc(1, sizeof(*mddev)); |
5c4cd5da AC |
3262 | while (dl) { |
3263 | struct mdinfo *tmp; | |
3264 | disk = &dl->disk; | |
503975b9 | 3265 | tmp = xcalloc(1, sizeof(*tmp)); |
5c4cd5da AC |
3266 | if (mddev->devs) |
3267 | tmp->next = mddev->devs; | |
3268 | mddev->devs = tmp; | |
3269 | tmp->disk.number = count++; | |
3270 | tmp->disk.major = dl->major; | |
3271 | tmp->disk.minor = dl->minor; | |
3272 | tmp->disk.state = is_configured(disk) ? | |
3273 | (1 << MD_DISK_ACTIVE) : 0; | |
3274 | tmp->disk.state |= is_failed(disk) ? (1 << MD_DISK_FAULTY) : 0; | |
3275 | tmp->disk.state |= is_spare(disk) ? 0 : (1 << MD_DISK_SYNC); | |
3276 | tmp->disk.raid_disk = -1; | |
3277 | dl = dl->next; | |
3278 | } | |
3279 | return mddev; | |
3280 | } | |
3281 | ||
cdddbdbc DW |
3282 | static int update_super_imsm(struct supertype *st, struct mdinfo *info, |
3283 | char *update, char *devname, int verbose, | |
3284 | int uuid_set, char *homehost) | |
3285 | { | |
f352c545 DW |
3286 | /* For 'assemble' and 'force' we need to return non-zero if any |
3287 | * change was made. For others, the return value is ignored. | |
3288 | * Update options are: | |
3289 | * force-one : This device looks a bit old but needs to be included, | |
3290 | * update age info appropriately. | |
3291 | * assemble: clear any 'faulty' flag to allow this device to | |
3292 | * be assembled. | |
3293 | * force-array: Array is degraded but being forced, mark it clean | |
3294 | * if that will be needed to assemble it. | |
3295 | * | |
3296 | * newdev: not used ???? | |
3297 | * grow: Array has gained a new device - this is currently for | |
3298 | * linear only | |
3299 | * resync: mark as dirty so a resync will happen. | |
3300 | * name: update the name - preserving the homehost | |
6e46bf34 | 3301 | * uuid: Change the uuid of the array to match watch is given |
f352c545 DW |
3302 | * |
3303 | * Following are not relevant for this imsm: | |
3304 | * sparc2.2 : update from old dodgey metadata | |
3305 | * super-minor: change the preferred_minor number | |
3306 | * summaries: update redundant counters. | |
f352c545 DW |
3307 | * homehost: update the recorded homehost |
3308 | * _reshape_progress: record new reshape_progress position. | |
3309 | */ | |
6e46bf34 DW |
3310 | int rv = 1; |
3311 | struct intel_super *super = st->sb; | |
3312 | struct imsm_super *mpb; | |
f352c545 | 3313 | |
6e46bf34 DW |
3314 | /* we can only update container info */ |
3315 | if (!super || super->current_vol >= 0 || !super->anchor) | |
3316 | return 1; | |
3317 | ||
3318 | mpb = super->anchor; | |
3319 | ||
81a5b4f5 N |
3320 | if (strcmp(update, "uuid") == 0) { |
3321 | /* We take this to mean that the family_num should be updated. | |
3322 | * However that is much smaller than the uuid so we cannot really | |
3323 | * allow an explicit uuid to be given. And it is hard to reliably | |
3324 | * know if one was. | |
3325 | * So if !uuid_set we know the current uuid is random and just used | |
3326 | * the first 'int' and copy it to the other 3 positions. | |
3327 | * Otherwise we require the 4 'int's to be the same as would be the | |
3328 | * case if we are using a random uuid. So an explicit uuid will be | |
3329 | * accepted as long as all for ints are the same... which shouldn't hurt | |
6e46bf34 | 3330 | */ |
81a5b4f5 N |
3331 | if (!uuid_set) { |
3332 | info->uuid[1] = info->uuid[2] = info->uuid[3] = info->uuid[0]; | |
6e46bf34 | 3333 | rv = 0; |
81a5b4f5 N |
3334 | } else { |
3335 | if (info->uuid[0] != info->uuid[1] || | |
3336 | info->uuid[1] != info->uuid[2] || | |
3337 | info->uuid[2] != info->uuid[3]) | |
3338 | rv = -1; | |
3339 | else | |
3340 | rv = 0; | |
6e46bf34 | 3341 | } |
81a5b4f5 N |
3342 | if (rv == 0) |
3343 | mpb->orig_family_num = info->uuid[0]; | |
6e46bf34 DW |
3344 | } else if (strcmp(update, "assemble") == 0) |
3345 | rv = 0; | |
3346 | else | |
1e2b2765 | 3347 | rv = -1; |
f352c545 | 3348 | |
6e46bf34 DW |
3349 | /* successful update? recompute checksum */ |
3350 | if (rv == 0) | |
3351 | mpb->check_sum = __le32_to_cpu(__gen_imsm_checksum(mpb)); | |
f352c545 DW |
3352 | |
3353 | return rv; | |
cdddbdbc DW |
3354 | } |
3355 | ||
c2c087e6 | 3356 | static size_t disks_to_mpb_size(int disks) |
cdddbdbc | 3357 | { |
c2c087e6 | 3358 | size_t size; |
cdddbdbc | 3359 | |
c2c087e6 DW |
3360 | size = sizeof(struct imsm_super); |
3361 | size += (disks - 1) * sizeof(struct imsm_disk); | |
3362 | size += 2 * sizeof(struct imsm_dev); | |
3363 | /* up to 2 maps per raid device (-2 for imsm_maps in imsm_dev */ | |
3364 | size += (4 - 2) * sizeof(struct imsm_map); | |
3365 | /* 4 possible disk_ord_tbl's */ | |
3366 | size += 4 * (disks - 1) * sizeof(__u32); | |
3367 | ||
3368 | return size; | |
3369 | } | |
3370 | ||
387fcd59 N |
3371 | static __u64 avail_size_imsm(struct supertype *st, __u64 devsize, |
3372 | unsigned long long data_offset) | |
c2c087e6 DW |
3373 | { |
3374 | if (devsize < (MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS)) | |
3375 | return 0; | |
3376 | ||
3377 | return devsize - (MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS); | |
cdddbdbc DW |
3378 | } |
3379 | ||
ba2de7ba DW |
3380 | static void free_devlist(struct intel_super *super) |
3381 | { | |
3382 | struct intel_dev *dv; | |
3383 | ||
3384 | while (super->devlist) { | |
3385 | dv = super->devlist->next; | |
3386 | free(super->devlist->dev); | |
3387 | free(super->devlist); | |
3388 | super->devlist = dv; | |
3389 | } | |
3390 | } | |
3391 | ||
3392 | static void imsm_copy_dev(struct imsm_dev *dest, struct imsm_dev *src) | |
3393 | { | |
3394 | memcpy(dest, src, sizeof_imsm_dev(src, 0)); | |
3395 | } | |
3396 | ||
cdddbdbc DW |
3397 | static int compare_super_imsm(struct supertype *st, struct supertype *tst) |
3398 | { | |
3399 | /* | |
3400 | * return: | |
3401 | * 0 same, or first was empty, and second was copied | |
3402 | * 1 second had wrong number | |
3403 | * 2 wrong uuid | |
3404 | * 3 wrong other info | |
3405 | */ | |
3406 | struct intel_super *first = st->sb; | |
3407 | struct intel_super *sec = tst->sb; | |
3408 | ||
5d500228 N |
3409 | if (!first) { |
3410 | st->sb = tst->sb; | |
3411 | tst->sb = NULL; | |
3412 | return 0; | |
3413 | } | |
8603ea6f LM |
3414 | /* in platform dependent environment test if the disks |
3415 | * use the same Intel hba | |
cb8f6859 | 3416 | * If not on Intel hba at all, allow anything. |
8603ea6f | 3417 | */ |
6b781d33 AP |
3418 | if (!check_env("IMSM_NO_PLATFORM") && first->hba && sec->hba) { |
3419 | if (first->hba->type != sec->hba->type) { | |
8603ea6f | 3420 | fprintf(stderr, |
6b781d33 AP |
3421 | "HBAs of devices do not match %s != %s\n", |
3422 | get_sys_dev_type(first->hba->type), | |
3423 | get_sys_dev_type(sec->hba->type)); | |
3424 | return 3; | |
3425 | } | |
3426 | if (first->orom != sec->orom) { | |
3427 | fprintf(stderr, | |
3428 | "HBAs of devices do not match %s != %s\n", | |
3429 | first->hba->pci_id, sec->hba->pci_id); | |
8603ea6f LM |
3430 | return 3; |
3431 | } | |
3432 | } | |
cdddbdbc | 3433 | |
d23fe947 DW |
3434 | /* if an anchor does not have num_raid_devs set then it is a free |
3435 | * floating spare | |
3436 | */ | |
3437 | if (first->anchor->num_raid_devs > 0 && | |
3438 | sec->anchor->num_raid_devs > 0) { | |
a2b97981 DW |
3439 | /* Determine if these disks might ever have been |
3440 | * related. Further disambiguation can only take place | |
3441 | * in load_super_imsm_all | |
3442 | */ | |
3443 | __u32 first_family = first->anchor->orig_family_num; | |
3444 | __u32 sec_family = sec->anchor->orig_family_num; | |
3445 | ||
f796af5d DW |
3446 | if (memcmp(first->anchor->sig, sec->anchor->sig, |
3447 | MAX_SIGNATURE_LENGTH) != 0) | |
3448 | return 3; | |
3449 | ||
a2b97981 DW |
3450 | if (first_family == 0) |
3451 | first_family = first->anchor->family_num; | |
3452 | if (sec_family == 0) | |
3453 | sec_family = sec->anchor->family_num; | |
3454 | ||
3455 | if (first_family != sec_family) | |
d23fe947 | 3456 | return 3; |
f796af5d | 3457 | |
d23fe947 | 3458 | } |
cdddbdbc | 3459 | |
3e372e5a DW |
3460 | /* if 'first' is a spare promote it to a populated mpb with sec's |
3461 | * family number | |
3462 | */ | |
3463 | if (first->anchor->num_raid_devs == 0 && | |
3464 | sec->anchor->num_raid_devs > 0) { | |
78d30f94 | 3465 | int i; |
ba2de7ba DW |
3466 | struct intel_dev *dv; |
3467 | struct imsm_dev *dev; | |
78d30f94 DW |
3468 | |
3469 | /* we need to copy raid device info from sec if an allocation | |
3470 | * fails here we don't associate the spare | |
3471 | */ | |
3472 | for (i = 0; i < sec->anchor->num_raid_devs; i++) { | |
503975b9 N |
3473 | dv = xmalloc(sizeof(*dv)); |
3474 | dev = xmalloc(sizeof_imsm_dev(get_imsm_dev(sec, i), 1)); | |
ba2de7ba DW |
3475 | dv->dev = dev; |
3476 | dv->index = i; | |
3477 | dv->next = first->devlist; | |
3478 | first->devlist = dv; | |
78d30f94 | 3479 | } |
709743c5 | 3480 | if (i < sec->anchor->num_raid_devs) { |
ba2de7ba DW |
3481 | /* allocation failure */ |
3482 | free_devlist(first); | |
e12b3daa | 3483 | pr_err("imsm: failed to associate spare\n"); |
ba2de7ba | 3484 | return 3; |
78d30f94 | 3485 | } |
3e372e5a | 3486 | first->anchor->num_raid_devs = sec->anchor->num_raid_devs; |
148acb7b | 3487 | first->anchor->orig_family_num = sec->anchor->orig_family_num; |
3e372e5a | 3488 | first->anchor->family_num = sec->anchor->family_num; |
ac6449be | 3489 | memcpy(first->anchor->sig, sec->anchor->sig, MAX_SIGNATURE_LENGTH); |
709743c5 DW |
3490 | for (i = 0; i < sec->anchor->num_raid_devs; i++) |
3491 | imsm_copy_dev(get_imsm_dev(first, i), get_imsm_dev(sec, i)); | |
3e372e5a DW |
3492 | } |
3493 | ||
cdddbdbc DW |
3494 | return 0; |
3495 | } | |
3496 | ||
0030e8d6 DW |
3497 | static void fd2devname(int fd, char *name) |
3498 | { | |
3499 | struct stat st; | |
3500 | char path[256]; | |
33a6535d | 3501 | char dname[PATH_MAX]; |
0030e8d6 DW |
3502 | char *nm; |
3503 | int rv; | |
3504 | ||
3505 | name[0] = '\0'; | |
3506 | if (fstat(fd, &st) != 0) | |
3507 | return; | |
3508 | sprintf(path, "/sys/dev/block/%d:%d", | |
3509 | major(st.st_rdev), minor(st.st_rdev)); | |
3510 | ||
9cf014ec | 3511 | rv = readlink(path, dname, sizeof(dname)-1); |
0030e8d6 DW |
3512 | if (rv <= 0) |
3513 | return; | |
9587c373 | 3514 | |
0030e8d6 DW |
3515 | dname[rv] = '\0'; |
3516 | nm = strrchr(dname, '/'); | |
7897de29 JS |
3517 | if (nm) { |
3518 | nm++; | |
3519 | snprintf(name, MAX_RAID_SERIAL_LEN, "/dev/%s", nm); | |
3520 | } | |
0030e8d6 DW |
3521 | } |
3522 | ||
21e9380b AP |
3523 | static int nvme_get_serial(int fd, void *buf, size_t buf_len) |
3524 | { | |
3525 | char path[60]; | |
3526 | char *name = fd2kname(fd); | |
3527 | ||
3528 | if (!name) | |
3529 | return 1; | |
3530 | ||
3531 | if (strncmp(name, "nvme", 4) != 0) | |
3532 | return 1; | |
3533 | ||
3534 | snprintf(path, sizeof(path) - 1, "/sys/block/%s/device/serial", name); | |
3535 | ||
3536 | return load_sys(path, buf, buf_len); | |
3537 | } | |
3538 | ||
cdddbdbc DW |
3539 | extern int scsi_get_serial(int fd, void *buf, size_t buf_len); |
3540 | ||
3541 | static int imsm_read_serial(int fd, char *devname, | |
3542 | __u8 serial[MAX_RAID_SERIAL_LEN]) | |
3543 | { | |
21e9380b | 3544 | char buf[50]; |
cdddbdbc | 3545 | int rv; |
1f24f035 | 3546 | int len; |
316e2bf4 DW |
3547 | char *dest; |
3548 | char *src; | |
21e9380b AP |
3549 | unsigned int i; |
3550 | ||
3551 | memset(buf, 0, sizeof(buf)); | |
cdddbdbc | 3552 | |
21e9380b | 3553 | rv = nvme_get_serial(fd, buf, sizeof(buf)); |
cdddbdbc | 3554 | |
21e9380b AP |
3555 | if (rv) |
3556 | rv = scsi_get_serial(fd, buf, sizeof(buf)); | |
f9ba0ff1 | 3557 | |
40ebbb9c | 3558 | if (rv && check_env("IMSM_DEVNAME_AS_SERIAL")) { |
f9ba0ff1 DW |
3559 | memset(serial, 0, MAX_RAID_SERIAL_LEN); |
3560 | fd2devname(fd, (char *) serial); | |
0030e8d6 DW |
3561 | return 0; |
3562 | } | |
3563 | ||
cdddbdbc DW |
3564 | if (rv != 0) { |
3565 | if (devname) | |
e7b84f9d N |
3566 | pr_err("Failed to retrieve serial for %s\n", |
3567 | devname); | |
cdddbdbc DW |
3568 | return rv; |
3569 | } | |
3570 | ||
316e2bf4 DW |
3571 | /* trim all whitespace and non-printable characters and convert |
3572 | * ':' to ';' | |
3573 | */ | |
21e9380b AP |
3574 | for (i = 0, dest = buf; i < sizeof(buf) && buf[i]; i++) { |
3575 | src = &buf[i]; | |
316e2bf4 DW |
3576 | if (*src > 0x20) { |
3577 | /* ':' is reserved for use in placeholder serial | |
3578 | * numbers for missing disks | |
3579 | */ | |
3580 | if (*src == ':') | |
3581 | *dest++ = ';'; | |
3582 | else | |
3583 | *dest++ = *src; | |
3584 | } | |
3585 | } | |
21e9380b AP |
3586 | len = dest - buf; |
3587 | dest = buf; | |
316e2bf4 DW |
3588 | |
3589 | /* truncate leading characters */ | |
3590 | if (len > MAX_RAID_SERIAL_LEN) { | |
3591 | dest += len - MAX_RAID_SERIAL_LEN; | |
1f24f035 | 3592 | len = MAX_RAID_SERIAL_LEN; |
316e2bf4 | 3593 | } |
5c3db629 | 3594 | |
5c3db629 | 3595 | memset(serial, 0, MAX_RAID_SERIAL_LEN); |
316e2bf4 | 3596 | memcpy(serial, dest, len); |
cdddbdbc DW |
3597 | |
3598 | return 0; | |
3599 | } | |
3600 | ||
1f24f035 DW |
3601 | static int serialcmp(__u8 *s1, __u8 *s2) |
3602 | { | |
3603 | return strncmp((char *) s1, (char *) s2, MAX_RAID_SERIAL_LEN); | |
3604 | } | |
3605 | ||
3606 | static void serialcpy(__u8 *dest, __u8 *src) | |
3607 | { | |
3608 | strncpy((char *) dest, (char *) src, MAX_RAID_SERIAL_LEN); | |
3609 | } | |
3610 | ||
54c2c1ea DW |
3611 | static struct dl *serial_to_dl(__u8 *serial, struct intel_super *super) |
3612 | { | |
3613 | struct dl *dl; | |
3614 | ||
3615 | for (dl = super->disks; dl; dl = dl->next) | |
3616 | if (serialcmp(dl->serial, serial) == 0) | |
3617 | break; | |
3618 | ||
3619 | return dl; | |
3620 | } | |
3621 | ||
a2b97981 DW |
3622 | static struct imsm_disk * |
3623 | __serial_to_disk(__u8 *serial, struct imsm_super *mpb, int *idx) | |
3624 | { | |
3625 | int i; | |
3626 | ||
3627 | for (i = 0; i < mpb->num_disks; i++) { | |
3628 | struct imsm_disk *disk = __get_imsm_disk(mpb, i); | |
3629 | ||
3630 | if (serialcmp(disk->serial, serial) == 0) { | |
3631 | if (idx) | |
3632 | *idx = i; | |
3633 | return disk; | |
3634 | } | |
3635 | } | |
3636 | ||
3637 | return NULL; | |
3638 | } | |
3639 | ||
cdddbdbc DW |
3640 | static int |
3641 | load_imsm_disk(int fd, struct intel_super *super, char *devname, int keep_fd) | |
3642 | { | |
a2b97981 | 3643 | struct imsm_disk *disk; |
cdddbdbc DW |
3644 | struct dl *dl; |
3645 | struct stat stb; | |
cdddbdbc | 3646 | int rv; |
a2b97981 | 3647 | char name[40]; |
d23fe947 DW |
3648 | __u8 serial[MAX_RAID_SERIAL_LEN]; |
3649 | ||
3650 | rv = imsm_read_serial(fd, devname, serial); | |
3651 | ||
3652 | if (rv != 0) | |
3653 | return 2; | |
3654 | ||
503975b9 | 3655 | dl = xcalloc(1, sizeof(*dl)); |
cdddbdbc | 3656 | |
a2b97981 DW |
3657 | fstat(fd, &stb); |
3658 | dl->major = major(stb.st_rdev); | |
3659 | dl->minor = minor(stb.st_rdev); | |
3660 | dl->next = super->disks; | |
3661 | dl->fd = keep_fd ? fd : -1; | |
3662 | assert(super->disks == NULL); | |
3663 | super->disks = dl; | |
3664 | serialcpy(dl->serial, serial); | |
3665 | dl->index = -2; | |
3666 | dl->e = NULL; | |
3667 | fd2devname(fd, name); | |
3668 | if (devname) | |
503975b9 | 3669 | dl->devname = xstrdup(devname); |
a2b97981 | 3670 | else |
503975b9 | 3671 | dl->devname = xstrdup(name); |
cdddbdbc | 3672 | |
d23fe947 | 3673 | /* look up this disk's index in the current anchor */ |
a2b97981 DW |
3674 | disk = __serial_to_disk(dl->serial, super->anchor, &dl->index); |
3675 | if (disk) { | |
3676 | dl->disk = *disk; | |
3677 | /* only set index on disks that are a member of a | |
3678 | * populated contianer, i.e. one with raid_devs | |
3679 | */ | |
3680 | if (is_failed(&dl->disk)) | |
3f6efecc | 3681 | dl->index = -2; |
a2b97981 DW |
3682 | else if (is_spare(&dl->disk)) |
3683 | dl->index = -1; | |
3f6efecc DW |
3684 | } |
3685 | ||
949c47a0 DW |
3686 | return 0; |
3687 | } | |
3688 | ||
0e600426 | 3689 | #ifndef MDASSEMBLE |
0c046afd DW |
3690 | /* When migrating map0 contains the 'destination' state while map1 |
3691 | * contains the current state. When not migrating map0 contains the | |
3692 | * current state. This routine assumes that map[0].map_state is set to | |
3693 | * the current array state before being called. | |
3694 | * | |
3695 | * Migration is indicated by one of the following states | |
3696 | * 1/ Idle (migr_state=0 map0state=normal||unitialized||degraded||failed) | |
e3bba0e0 | 3697 | * 2/ Initialize (migr_state=1 migr_type=MIGR_INIT map0state=normal |
0c046afd | 3698 | * map1state=unitialized) |
1484e727 | 3699 | * 3/ Repair (Resync) (migr_state=1 migr_type=MIGR_REPAIR map0state=normal |
0c046afd | 3700 | * map1state=normal) |
e3bba0e0 | 3701 | * 4/ Rebuild (migr_state=1 migr_type=MIGR_REBUILD map0state=normal |
0c046afd | 3702 | * map1state=degraded) |
8e59f3d8 AK |
3703 | * 5/ Migration (mig_state=1 migr_type=MIGR_GEN_MIGR map0state=normal |
3704 | * map1state=normal) | |
0c046afd | 3705 | */ |
8e59f3d8 AK |
3706 | static void migrate(struct imsm_dev *dev, struct intel_super *super, |
3707 | __u8 to_state, int migr_type) | |
3393c6af | 3708 | { |
0c046afd | 3709 | struct imsm_map *dest; |
238c0a71 | 3710 | struct imsm_map *src = get_imsm_map(dev, MAP_0); |
3393c6af | 3711 | |
0c046afd | 3712 | dev->vol.migr_state = 1; |
1484e727 | 3713 | set_migr_type(dev, migr_type); |
f8f603f1 | 3714 | dev->vol.curr_migr_unit = 0; |
238c0a71 | 3715 | dest = get_imsm_map(dev, MAP_1); |
0c046afd | 3716 | |
0556e1a2 | 3717 | /* duplicate and then set the target end state in map[0] */ |
3393c6af | 3718 | memcpy(dest, src, sizeof_imsm_map(src)); |
089f9d79 | 3719 | if (migr_type == MIGR_REBUILD || migr_type == MIGR_GEN_MIGR) { |
0556e1a2 DW |
3720 | __u32 ord; |
3721 | int i; | |
3722 | ||
3723 | for (i = 0; i < src->num_members; i++) { | |
3724 | ord = __le32_to_cpu(src->disk_ord_tbl[i]); | |
3725 | set_imsm_ord_tbl_ent(src, i, ord_to_idx(ord)); | |
3726 | } | |
3727 | } | |
3728 | ||
8e59f3d8 AK |
3729 | if (migr_type == MIGR_GEN_MIGR) |
3730 | /* Clear migration record */ | |
3731 | memset(super->migr_rec, 0, sizeof(struct migr_record)); | |
3732 | ||
0c046afd | 3733 | src->map_state = to_state; |
949c47a0 | 3734 | } |
f8f603f1 | 3735 | |
809da78e AK |
3736 | static void end_migration(struct imsm_dev *dev, struct intel_super *super, |
3737 | __u8 map_state) | |
f8f603f1 | 3738 | { |
238c0a71 AK |
3739 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
3740 | struct imsm_map *prev = get_imsm_map(dev, dev->vol.migr_state == 0 ? | |
3741 | MAP_0 : MAP_1); | |
28bce06f | 3742 | int i, j; |
0556e1a2 DW |
3743 | |
3744 | /* merge any IMSM_ORD_REBUILD bits that were not successfully | |
3745 | * completed in the last migration. | |
3746 | * | |
28bce06f | 3747 | * FIXME add support for raid-level-migration |
0556e1a2 | 3748 | */ |
089f9d79 JS |
3749 | if (map_state != map->map_state && (is_gen_migration(dev) == 0) && |
3750 | prev->map_state != IMSM_T_STATE_UNINITIALIZED) { | |
809da78e AK |
3751 | /* when final map state is other than expected |
3752 | * merge maps (not for migration) | |
3753 | */ | |
3754 | int failed; | |
3755 | ||
3756 | for (i = 0; i < prev->num_members; i++) | |
3757 | for (j = 0; j < map->num_members; j++) | |
3758 | /* during online capacity expansion | |
3759 | * disks position can be changed | |
3760 | * if takeover is used | |
3761 | */ | |
3762 | if (ord_to_idx(map->disk_ord_tbl[j]) == | |
3763 | ord_to_idx(prev->disk_ord_tbl[i])) { | |
3764 | map->disk_ord_tbl[j] |= | |
3765 | prev->disk_ord_tbl[i]; | |
3766 | break; | |
3767 | } | |
3768 | failed = imsm_count_failed(super, dev, MAP_0); | |
3769 | map_state = imsm_check_degraded(super, dev, failed, MAP_0); | |
3770 | } | |
f8f603f1 DW |
3771 | |
3772 | dev->vol.migr_state = 0; | |
ea672ee1 | 3773 | set_migr_type(dev, 0); |
f8f603f1 DW |
3774 | dev->vol.curr_migr_unit = 0; |
3775 | map->map_state = map_state; | |
3776 | } | |
0e600426 | 3777 | #endif |
949c47a0 DW |
3778 | |
3779 | static int parse_raid_devices(struct intel_super *super) | |
3780 | { | |
3781 | int i; | |
3782 | struct imsm_dev *dev_new; | |
4d7b1503 | 3783 | size_t len, len_migr; |
401d313b | 3784 | size_t max_len = 0; |
4d7b1503 DW |
3785 | size_t space_needed = 0; |
3786 | struct imsm_super *mpb = super->anchor; | |
949c47a0 DW |
3787 | |
3788 | for (i = 0; i < super->anchor->num_raid_devs; i++) { | |
3789 | struct imsm_dev *dev_iter = __get_imsm_dev(super->anchor, i); | |
ba2de7ba | 3790 | struct intel_dev *dv; |
949c47a0 | 3791 | |
4d7b1503 DW |
3792 | len = sizeof_imsm_dev(dev_iter, 0); |
3793 | len_migr = sizeof_imsm_dev(dev_iter, 1); | |
3794 | if (len_migr > len) | |
3795 | space_needed += len_migr - len; | |
ca9de185 | 3796 | |
503975b9 | 3797 | dv = xmalloc(sizeof(*dv)); |
401d313b AK |
3798 | if (max_len < len_migr) |
3799 | max_len = len_migr; | |
3800 | if (max_len > len_migr) | |
3801 | space_needed += max_len - len_migr; | |
503975b9 | 3802 | dev_new = xmalloc(max_len); |
949c47a0 | 3803 | imsm_copy_dev(dev_new, dev_iter); |
ba2de7ba DW |
3804 | dv->dev = dev_new; |
3805 | dv->index = i; | |
3806 | dv->next = super->devlist; | |
3807 | super->devlist = dv; | |
949c47a0 | 3808 | } |
cdddbdbc | 3809 | |
4d7b1503 DW |
3810 | /* ensure that super->buf is large enough when all raid devices |
3811 | * are migrating | |
3812 | */ | |
3813 | if (__le32_to_cpu(mpb->mpb_size) + space_needed > super->len) { | |
3814 | void *buf; | |
3815 | ||
f36a9ecd PB |
3816 | len = ROUND_UP(__le32_to_cpu(mpb->mpb_size) + space_needed, |
3817 | super->sector_size); | |
3818 | if (posix_memalign(&buf, MAX_SECTOR_SIZE, len) != 0) | |
4d7b1503 DW |
3819 | return 1; |
3820 | ||
1f45a8ad DW |
3821 | memcpy(buf, super->buf, super->len); |
3822 | memset(buf + super->len, 0, len - super->len); | |
4d7b1503 DW |
3823 | free(super->buf); |
3824 | super->buf = buf; | |
3825 | super->len = len; | |
3826 | } | |
ca9de185 | 3827 | |
cdddbdbc DW |
3828 | return 0; |
3829 | } | |
3830 | ||
e2f41b2c AK |
3831 | /******************************************************************************* |
3832 | * Function: check_mpb_migr_compatibility | |
3833 | * Description: Function checks for unsupported migration features: | |
3834 | * - migration optimization area (pba_of_lba0) | |
3835 | * - descending reshape (ascending_migr) | |
3836 | * Parameters: | |
3837 | * super : imsm metadata information | |
3838 | * Returns: | |
3839 | * 0 : migration is compatible | |
3840 | * -1 : migration is not compatible | |
3841 | ******************************************************************************/ | |
3842 | int check_mpb_migr_compatibility(struct intel_super *super) | |
3843 | { | |
3844 | struct imsm_map *map0, *map1; | |
3845 | struct migr_record *migr_rec = super->migr_rec; | |
3846 | int i; | |
3847 | ||
3848 | for (i = 0; i < super->anchor->num_raid_devs; i++) { | |
3849 | struct imsm_dev *dev_iter = __get_imsm_dev(super->anchor, i); | |
3850 | ||
3851 | if (dev_iter && | |
3852 | dev_iter->vol.migr_state == 1 && | |
3853 | dev_iter->vol.migr_type == MIGR_GEN_MIGR) { | |
3854 | /* This device is migrating */ | |
238c0a71 AK |
3855 | map0 = get_imsm_map(dev_iter, MAP_0); |
3856 | map1 = get_imsm_map(dev_iter, MAP_1); | |
5551b113 | 3857 | if (pba_of_lba0(map0) != pba_of_lba0(map1)) |
e2f41b2c AK |
3858 | /* migration optimization area was used */ |
3859 | return -1; | |
3860 | if (migr_rec->ascending_migr == 0 | |
3861 | && migr_rec->dest_depth_per_unit > 0) | |
3862 | /* descending reshape not supported yet */ | |
3863 | return -1; | |
3864 | } | |
3865 | } | |
3866 | return 0; | |
3867 | } | |
3868 | ||
d23fe947 | 3869 | static void __free_imsm(struct intel_super *super, int free_disks); |
9ca2c81c | 3870 | |
cdddbdbc | 3871 | /* load_imsm_mpb - read matrix metadata |
f2f5c343 | 3872 | * allocates super->mpb to be freed by free_imsm |
cdddbdbc DW |
3873 | */ |
3874 | static int load_imsm_mpb(int fd, struct intel_super *super, char *devname) | |
3875 | { | |
3876 | unsigned long long dsize; | |
cdddbdbc | 3877 | unsigned long long sectors; |
f36a9ecd | 3878 | unsigned int sector_size = super->sector_size; |
cdddbdbc | 3879 | struct stat; |
6416d527 | 3880 | struct imsm_super *anchor; |
cdddbdbc DW |
3881 | __u32 check_sum; |
3882 | ||
cdddbdbc | 3883 | get_dev_size(fd, NULL, &dsize); |
f36a9ecd | 3884 | if (dsize < 2*sector_size) { |
64436f06 | 3885 | if (devname) |
e7b84f9d N |
3886 | pr_err("%s: device to small for imsm\n", |
3887 | devname); | |
64436f06 N |
3888 | return 1; |
3889 | } | |
cdddbdbc | 3890 | |
f36a9ecd | 3891 | if (lseek64(fd, dsize - (sector_size * 2), SEEK_SET) < 0) { |
cdddbdbc | 3892 | if (devname) |
e7b84f9d N |
3893 | pr_err("Cannot seek to anchor block on %s: %s\n", |
3894 | devname, strerror(errno)); | |
cdddbdbc DW |
3895 | return 1; |
3896 | } | |
3897 | ||
f36a9ecd | 3898 | if (posix_memalign((void **)&anchor, sector_size, sector_size) != 0) { |
ad97895e | 3899 | if (devname) |
7a862a02 | 3900 | pr_err("Failed to allocate imsm anchor buffer on %s\n", devname); |
ad97895e DW |
3901 | return 1; |
3902 | } | |
f36a9ecd | 3903 | if (read(fd, anchor, sector_size) != sector_size) { |
cdddbdbc | 3904 | if (devname) |
e7b84f9d N |
3905 | pr_err("Cannot read anchor block on %s: %s\n", |
3906 | devname, strerror(errno)); | |
6416d527 | 3907 | free(anchor); |
cdddbdbc DW |
3908 | return 1; |
3909 | } | |
3910 | ||
6416d527 | 3911 | if (strncmp((char *) anchor->sig, MPB_SIGNATURE, MPB_SIG_LEN) != 0) { |
cdddbdbc | 3912 | if (devname) |
e7b84f9d | 3913 | pr_err("no IMSM anchor on %s\n", devname); |
6416d527 | 3914 | free(anchor); |
cdddbdbc DW |
3915 | return 2; |
3916 | } | |
3917 | ||
d23fe947 | 3918 | __free_imsm(super, 0); |
f2f5c343 LM |
3919 | /* reload capability and hba */ |
3920 | ||
3921 | /* capability and hba must be updated with new super allocation */ | |
d424212e | 3922 | find_intel_hba_capability(fd, super, devname); |
f36a9ecd PB |
3923 | super->len = ROUND_UP(anchor->mpb_size, sector_size); |
3924 | if (posix_memalign(&super->buf, MAX_SECTOR_SIZE, super->len) != 0) { | |
cdddbdbc | 3925 | if (devname) |
e7b84f9d N |
3926 | pr_err("unable to allocate %zu byte mpb buffer\n", |
3927 | super->len); | |
6416d527 | 3928 | free(anchor); |
cdddbdbc DW |
3929 | return 2; |
3930 | } | |
f36a9ecd | 3931 | memcpy(super->buf, anchor, sector_size); |
cdddbdbc | 3932 | |
f36a9ecd | 3933 | sectors = mpb_sectors(anchor, sector_size) - 1; |
6416d527 | 3934 | free(anchor); |
8e59f3d8 | 3935 | |
de44e46f PB |
3936 | if (posix_memalign(&super->migr_rec_buf, sector_size, |
3937 | MIGR_REC_BUF_SECTORS*sector_size) != 0) { | |
1ade5cc1 | 3938 | pr_err("could not allocate migr_rec buffer\n"); |
8e59f3d8 AK |
3939 | free(super->buf); |
3940 | return 2; | |
3941 | } | |
51d83f5d | 3942 | super->clean_migration_record_by_mdmon = 0; |
8e59f3d8 | 3943 | |
949c47a0 | 3944 | if (!sectors) { |
ecf45690 DW |
3945 | check_sum = __gen_imsm_checksum(super->anchor); |
3946 | if (check_sum != __le32_to_cpu(super->anchor->check_sum)) { | |
3947 | if (devname) | |
e7b84f9d N |
3948 | pr_err("IMSM checksum %x != %x on %s\n", |
3949 | check_sum, | |
3950 | __le32_to_cpu(super->anchor->check_sum), | |
3951 | devname); | |
ecf45690 DW |
3952 | return 2; |
3953 | } | |
3954 | ||
a2b97981 | 3955 | return 0; |
949c47a0 | 3956 | } |
cdddbdbc DW |
3957 | |
3958 | /* read the extended mpb */ | |
f36a9ecd | 3959 | if (lseek64(fd, dsize - (sector_size * (2 + sectors)), SEEK_SET) < 0) { |
cdddbdbc | 3960 | if (devname) |
e7b84f9d N |
3961 | pr_err("Cannot seek to extended mpb on %s: %s\n", |
3962 | devname, strerror(errno)); | |
cdddbdbc DW |
3963 | return 1; |
3964 | } | |
3965 | ||
f36a9ecd PB |
3966 | if ((unsigned int)read(fd, super->buf + sector_size, |
3967 | super->len - sector_size) != super->len - sector_size) { | |
cdddbdbc | 3968 | if (devname) |
e7b84f9d N |
3969 | pr_err("Cannot read extended mpb on %s: %s\n", |
3970 | devname, strerror(errno)); | |
cdddbdbc DW |
3971 | return 2; |
3972 | } | |
3973 | ||
949c47a0 DW |
3974 | check_sum = __gen_imsm_checksum(super->anchor); |
3975 | if (check_sum != __le32_to_cpu(super->anchor->check_sum)) { | |
cdddbdbc | 3976 | if (devname) |
e7b84f9d N |
3977 | pr_err("IMSM checksum %x != %x on %s\n", |
3978 | check_sum, __le32_to_cpu(super->anchor->check_sum), | |
3979 | devname); | |
db575f3b | 3980 | return 3; |
cdddbdbc DW |
3981 | } |
3982 | ||
a2b97981 DW |
3983 | return 0; |
3984 | } | |
3985 | ||
8e59f3d8 AK |
3986 | static int read_imsm_migr_rec(int fd, struct intel_super *super); |
3987 | ||
97f81ee2 CA |
3988 | /* clears hi bits in metadata if MPB_ATTRIB_2TB_DISK not set */ |
3989 | static void clear_hi(struct intel_super *super) | |
3990 | { | |
3991 | struct imsm_super *mpb = super->anchor; | |
3992 | int i, n; | |
3993 | if (mpb->attributes & MPB_ATTRIB_2TB_DISK) | |
3994 | return; | |
3995 | for (i = 0; i < mpb->num_disks; ++i) { | |
3996 | struct imsm_disk *disk = &mpb->disk[i]; | |
3997 | disk->total_blocks_hi = 0; | |
3998 | } | |
3999 | for (i = 0; i < mpb->num_raid_devs; ++i) { | |
4000 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
4001 | if (!dev) | |
4002 | return; | |
4003 | for (n = 0; n < 2; ++n) { | |
4004 | struct imsm_map *map = get_imsm_map(dev, n); | |
4005 | if (!map) | |
4006 | continue; | |
4007 | map->pba_of_lba0_hi = 0; | |
4008 | map->blocks_per_member_hi = 0; | |
4009 | map->num_data_stripes_hi = 0; | |
4010 | } | |
4011 | } | |
4012 | } | |
4013 | ||
a2b97981 DW |
4014 | static int |
4015 | load_and_parse_mpb(int fd, struct intel_super *super, char *devname, int keep_fd) | |
4016 | { | |
4017 | int err; | |
4018 | ||
4019 | err = load_imsm_mpb(fd, super, devname); | |
4020 | if (err) | |
4021 | return err; | |
f36a9ecd PB |
4022 | if (super->sector_size == 4096) |
4023 | convert_from_4k(super); | |
a2b97981 DW |
4024 | err = load_imsm_disk(fd, super, devname, keep_fd); |
4025 | if (err) | |
4026 | return err; | |
4027 | err = parse_raid_devices(super); | |
8d67477f TM |
4028 | if (err) |
4029 | return err; | |
4030 | err = load_bbm_log(super); | |
97f81ee2 | 4031 | clear_hi(super); |
a2b97981 | 4032 | return err; |
cdddbdbc DW |
4033 | } |
4034 | ||
ae6aad82 DW |
4035 | static void __free_imsm_disk(struct dl *d) |
4036 | { | |
4037 | if (d->fd >= 0) | |
4038 | close(d->fd); | |
4039 | if (d->devname) | |
4040 | free(d->devname); | |
0dcecb2e DW |
4041 | if (d->e) |
4042 | free(d->e); | |
ae6aad82 DW |
4043 | free(d); |
4044 | ||
4045 | } | |
1a64be56 | 4046 | |
cdddbdbc DW |
4047 | static void free_imsm_disks(struct intel_super *super) |
4048 | { | |
47ee5a45 | 4049 | struct dl *d; |
cdddbdbc | 4050 | |
47ee5a45 DW |
4051 | while (super->disks) { |
4052 | d = super->disks; | |
cdddbdbc | 4053 | super->disks = d->next; |
ae6aad82 | 4054 | __free_imsm_disk(d); |
cdddbdbc | 4055 | } |
cb82edca AK |
4056 | while (super->disk_mgmt_list) { |
4057 | d = super->disk_mgmt_list; | |
4058 | super->disk_mgmt_list = d->next; | |
4059 | __free_imsm_disk(d); | |
4060 | } | |
47ee5a45 DW |
4061 | while (super->missing) { |
4062 | d = super->missing; | |
4063 | super->missing = d->next; | |
4064 | __free_imsm_disk(d); | |
4065 | } | |
4066 | ||
cdddbdbc DW |
4067 | } |
4068 | ||
9ca2c81c | 4069 | /* free all the pieces hanging off of a super pointer */ |
d23fe947 | 4070 | static void __free_imsm(struct intel_super *super, int free_disks) |
cdddbdbc | 4071 | { |
88654014 LM |
4072 | struct intel_hba *elem, *next; |
4073 | ||
9ca2c81c | 4074 | if (super->buf) { |
949c47a0 | 4075 | free(super->buf); |
9ca2c81c DW |
4076 | super->buf = NULL; |
4077 | } | |
f2f5c343 LM |
4078 | /* unlink capability description */ |
4079 | super->orom = NULL; | |
8e59f3d8 AK |
4080 | if (super->migr_rec_buf) { |
4081 | free(super->migr_rec_buf); | |
4082 | super->migr_rec_buf = NULL; | |
4083 | } | |
d23fe947 DW |
4084 | if (free_disks) |
4085 | free_imsm_disks(super); | |
ba2de7ba | 4086 | free_devlist(super); |
88654014 LM |
4087 | elem = super->hba; |
4088 | while (elem) { | |
4089 | if (elem->path) | |
4090 | free((void *)elem->path); | |
4091 | next = elem->next; | |
4092 | free(elem); | |
4093 | elem = next; | |
88c32bb1 | 4094 | } |
8d67477f TM |
4095 | if (super->bbm_log) |
4096 | free(super->bbm_log); | |
88654014 | 4097 | super->hba = NULL; |
cdddbdbc DW |
4098 | } |
4099 | ||
9ca2c81c DW |
4100 | static void free_imsm(struct intel_super *super) |
4101 | { | |
d23fe947 | 4102 | __free_imsm(super, 1); |
9ca2c81c DW |
4103 | free(super); |
4104 | } | |
cdddbdbc DW |
4105 | |
4106 | static void free_super_imsm(struct supertype *st) | |
4107 | { | |
4108 | struct intel_super *super = st->sb; | |
4109 | ||
4110 | if (!super) | |
4111 | return; | |
4112 | ||
4113 | free_imsm(super); | |
4114 | st->sb = NULL; | |
4115 | } | |
4116 | ||
49133e57 | 4117 | static struct intel_super *alloc_super(void) |
c2c087e6 | 4118 | { |
503975b9 | 4119 | struct intel_super *super = xcalloc(1, sizeof(*super)); |
c2c087e6 | 4120 | |
503975b9 N |
4121 | super->current_vol = -1; |
4122 | super->create_offset = ~((unsigned long long) 0); | |
c2c087e6 DW |
4123 | return super; |
4124 | } | |
4125 | ||
f0f5a016 LM |
4126 | /* |
4127 | * find and allocate hba and OROM/EFI based on valid fd of RAID component device | |
4128 | */ | |
d424212e | 4129 | static int find_intel_hba_capability(int fd, struct intel_super *super, char *devname) |
f0f5a016 LM |
4130 | { |
4131 | struct sys_dev *hba_name; | |
4132 | int rv = 0; | |
4133 | ||
089f9d79 | 4134 | if (fd < 0 || check_env("IMSM_NO_PLATFORM")) { |
f2f5c343 | 4135 | super->orom = NULL; |
f0f5a016 LM |
4136 | super->hba = NULL; |
4137 | return 0; | |
4138 | } | |
4139 | hba_name = find_disk_attached_hba(fd, NULL); | |
4140 | if (!hba_name) { | |
d424212e | 4141 | if (devname) |
e7b84f9d N |
4142 | pr_err("%s is not attached to Intel(R) RAID controller.\n", |
4143 | devname); | |
f0f5a016 LM |
4144 | return 1; |
4145 | } | |
4146 | rv = attach_hba_to_super(super, hba_name); | |
4147 | if (rv == 2) { | |
d424212e N |
4148 | if (devname) { |
4149 | struct intel_hba *hba = super->hba; | |
f0f5a016 | 4150 | |
60f0f54d PB |
4151 | pr_err("%s is attached to Intel(R) %s %s (%s),\n" |
4152 | " but the container is assigned to Intel(R) %s %s (", | |
d424212e | 4153 | devname, |
614902f6 | 4154 | get_sys_dev_type(hba_name->type), |
60f0f54d | 4155 | hba_name->type == SYS_DEV_VMD ? "domain" : "RAID controller", |
f0f5a016 | 4156 | hba_name->pci_id ? : "Err!", |
60f0f54d PB |
4157 | get_sys_dev_type(super->hba->type), |
4158 | hba->type == SYS_DEV_VMD ? "domain" : "RAID controller"); | |
f0f5a016 | 4159 | |
f0f5a016 LM |
4160 | while (hba) { |
4161 | fprintf(stderr, "%s", hba->pci_id ? : "Err!"); | |
4162 | if (hba->next) | |
4163 | fprintf(stderr, ", "); | |
4164 | hba = hba->next; | |
4165 | } | |
6b781d33 | 4166 | fprintf(stderr, ").\n" |
60f0f54d PB |
4167 | " Mixing devices attached to different %s is not allowed.\n", |
4168 | hba_name->type == SYS_DEV_VMD ? "VMD domains" : "controllers"); | |
f0f5a016 | 4169 | } |
f0f5a016 LM |
4170 | return 2; |
4171 | } | |
6b781d33 | 4172 | super->orom = find_imsm_capability(hba_name); |
f2f5c343 LM |
4173 | if (!super->orom) |
4174 | return 3; | |
614902f6 | 4175 | |
f0f5a016 LM |
4176 | return 0; |
4177 | } | |
4178 | ||
47ee5a45 DW |
4179 | /* find_missing - helper routine for load_super_imsm_all that identifies |
4180 | * disks that have disappeared from the system. This routine relies on | |
4181 | * the mpb being uptodate, which it is at load time. | |
4182 | */ | |
4183 | static int find_missing(struct intel_super *super) | |
4184 | { | |
4185 | int i; | |
4186 | struct imsm_super *mpb = super->anchor; | |
4187 | struct dl *dl; | |
4188 | struct imsm_disk *disk; | |
47ee5a45 DW |
4189 | |
4190 | for (i = 0; i < mpb->num_disks; i++) { | |
4191 | disk = __get_imsm_disk(mpb, i); | |
54c2c1ea | 4192 | dl = serial_to_dl(disk->serial, super); |
47ee5a45 DW |
4193 | if (dl) |
4194 | continue; | |
47ee5a45 | 4195 | |
503975b9 | 4196 | dl = xmalloc(sizeof(*dl)); |
47ee5a45 DW |
4197 | dl->major = 0; |
4198 | dl->minor = 0; | |
4199 | dl->fd = -1; | |
503975b9 | 4200 | dl->devname = xstrdup("missing"); |
47ee5a45 DW |
4201 | dl->index = i; |
4202 | serialcpy(dl->serial, disk->serial); | |
4203 | dl->disk = *disk; | |
689c9bf3 | 4204 | dl->e = NULL; |
47ee5a45 DW |
4205 | dl->next = super->missing; |
4206 | super->missing = dl; | |
4207 | } | |
4208 | ||
4209 | return 0; | |
4210 | } | |
4211 | ||
3960e579 | 4212 | #ifndef MDASSEMBLE |
a2b97981 DW |
4213 | static struct intel_disk *disk_list_get(__u8 *serial, struct intel_disk *disk_list) |
4214 | { | |
4215 | struct intel_disk *idisk = disk_list; | |
4216 | ||
4217 | while (idisk) { | |
4218 | if (serialcmp(idisk->disk.serial, serial) == 0) | |
4219 | break; | |
4220 | idisk = idisk->next; | |
4221 | } | |
4222 | ||
4223 | return idisk; | |
4224 | } | |
4225 | ||
4226 | static int __prep_thunderdome(struct intel_super **table, int tbl_size, | |
4227 | struct intel_super *super, | |
4228 | struct intel_disk **disk_list) | |
4229 | { | |
4230 | struct imsm_disk *d = &super->disks->disk; | |
4231 | struct imsm_super *mpb = super->anchor; | |
4232 | int i, j; | |
4233 | ||
4234 | for (i = 0; i < tbl_size; i++) { | |
4235 | struct imsm_super *tbl_mpb = table[i]->anchor; | |
4236 | struct imsm_disk *tbl_d = &table[i]->disks->disk; | |
4237 | ||
4238 | if (tbl_mpb->family_num == mpb->family_num) { | |
4239 | if (tbl_mpb->check_sum == mpb->check_sum) { | |
1ade5cc1 N |
4240 | dprintf("mpb from %d:%d matches %d:%d\n", |
4241 | super->disks->major, | |
a2b97981 DW |
4242 | super->disks->minor, |
4243 | table[i]->disks->major, | |
4244 | table[i]->disks->minor); | |
4245 | break; | |
4246 | } | |
4247 | ||
4248 | if (((is_configured(d) && !is_configured(tbl_d)) || | |
4249 | is_configured(d) == is_configured(tbl_d)) && | |
4250 | tbl_mpb->generation_num < mpb->generation_num) { | |
4251 | /* current version of the mpb is a | |
4252 | * better candidate than the one in | |
4253 | * super_table, but copy over "cross | |
4254 | * generational" status | |
4255 | */ | |
4256 | struct intel_disk *idisk; | |
4257 | ||
1ade5cc1 N |
4258 | dprintf("mpb from %d:%d replaces %d:%d\n", |
4259 | super->disks->major, | |
a2b97981 DW |
4260 | super->disks->minor, |
4261 | table[i]->disks->major, | |
4262 | table[i]->disks->minor); | |
4263 | ||
4264 | idisk = disk_list_get(tbl_d->serial, *disk_list); | |
4265 | if (idisk && is_failed(&idisk->disk)) | |
4266 | tbl_d->status |= FAILED_DISK; | |
4267 | break; | |
4268 | } else { | |
4269 | struct intel_disk *idisk; | |
4270 | struct imsm_disk *disk; | |
4271 | ||
4272 | /* tbl_mpb is more up to date, but copy | |
4273 | * over cross generational status before | |
4274 | * returning | |
4275 | */ | |
4276 | disk = __serial_to_disk(d->serial, mpb, NULL); | |
4277 | if (disk && is_failed(disk)) | |
4278 | d->status |= FAILED_DISK; | |
4279 | ||
4280 | idisk = disk_list_get(d->serial, *disk_list); | |
4281 | if (idisk) { | |
4282 | idisk->owner = i; | |
4283 | if (disk && is_configured(disk)) | |
4284 | idisk->disk.status |= CONFIGURED_DISK; | |
4285 | } | |
4286 | ||
1ade5cc1 N |
4287 | dprintf("mpb from %d:%d prefer %d:%d\n", |
4288 | super->disks->major, | |
a2b97981 DW |
4289 | super->disks->minor, |
4290 | table[i]->disks->major, | |
4291 | table[i]->disks->minor); | |
4292 | ||
4293 | return tbl_size; | |
4294 | } | |
4295 | } | |
4296 | } | |
4297 | ||
4298 | if (i >= tbl_size) | |
4299 | table[tbl_size++] = super; | |
4300 | else | |
4301 | table[i] = super; | |
4302 | ||
4303 | /* update/extend the merged list of imsm_disk records */ | |
4304 | for (j = 0; j < mpb->num_disks; j++) { | |
4305 | struct imsm_disk *disk = __get_imsm_disk(mpb, j); | |
4306 | struct intel_disk *idisk; | |
4307 | ||
4308 | idisk = disk_list_get(disk->serial, *disk_list); | |
4309 | if (idisk) { | |
4310 | idisk->disk.status |= disk->status; | |
4311 | if (is_configured(&idisk->disk) || | |
4312 | is_failed(&idisk->disk)) | |
4313 | idisk->disk.status &= ~(SPARE_DISK); | |
4314 | } else { | |
503975b9 | 4315 | idisk = xcalloc(1, sizeof(*idisk)); |
a2b97981 DW |
4316 | idisk->owner = IMSM_UNKNOWN_OWNER; |
4317 | idisk->disk = *disk; | |
4318 | idisk->next = *disk_list; | |
4319 | *disk_list = idisk; | |
4320 | } | |
4321 | ||
4322 | if (serialcmp(idisk->disk.serial, d->serial) == 0) | |
4323 | idisk->owner = i; | |
4324 | } | |
4325 | ||
4326 | return tbl_size; | |
4327 | } | |
4328 | ||
4329 | static struct intel_super * | |
4330 | validate_members(struct intel_super *super, struct intel_disk *disk_list, | |
4331 | const int owner) | |
4332 | { | |
4333 | struct imsm_super *mpb = super->anchor; | |
4334 | int ok_count = 0; | |
4335 | int i; | |
4336 | ||
4337 | for (i = 0; i < mpb->num_disks; i++) { | |
4338 | struct imsm_disk *disk = __get_imsm_disk(mpb, i); | |
4339 | struct intel_disk *idisk; | |
4340 | ||
4341 | idisk = disk_list_get(disk->serial, disk_list); | |
4342 | if (idisk) { | |
4343 | if (idisk->owner == owner || | |
4344 | idisk->owner == IMSM_UNKNOWN_OWNER) | |
4345 | ok_count++; | |
4346 | else | |
1ade5cc1 N |
4347 | dprintf("'%.16s' owner %d != %d\n", |
4348 | disk->serial, idisk->owner, | |
a2b97981 DW |
4349 | owner); |
4350 | } else { | |
1ade5cc1 N |
4351 | dprintf("unknown disk %x [%d]: %.16s\n", |
4352 | __le32_to_cpu(mpb->family_num), i, | |
a2b97981 DW |
4353 | disk->serial); |
4354 | break; | |
4355 | } | |
4356 | } | |
4357 | ||
4358 | if (ok_count == mpb->num_disks) | |
4359 | return super; | |
4360 | return NULL; | |
4361 | } | |
4362 | ||
4363 | static void show_conflicts(__u32 family_num, struct intel_super *super_list) | |
4364 | { | |
4365 | struct intel_super *s; | |
4366 | ||
4367 | for (s = super_list; s; s = s->next) { | |
4368 | if (family_num != s->anchor->family_num) | |
4369 | continue; | |
e12b3daa | 4370 | pr_err("Conflict, offlining family %#x on '%s'\n", |
a2b97981 DW |
4371 | __le32_to_cpu(family_num), s->disks->devname); |
4372 | } | |
4373 | } | |
4374 | ||
4375 | static struct intel_super * | |
4376 | imsm_thunderdome(struct intel_super **super_list, int len) | |
4377 | { | |
4378 | struct intel_super *super_table[len]; | |
4379 | struct intel_disk *disk_list = NULL; | |
4380 | struct intel_super *champion, *spare; | |
4381 | struct intel_super *s, **del; | |
4382 | int tbl_size = 0; | |
4383 | int conflict; | |
4384 | int i; | |
4385 | ||
4386 | memset(super_table, 0, sizeof(super_table)); | |
4387 | for (s = *super_list; s; s = s->next) | |
4388 | tbl_size = __prep_thunderdome(super_table, tbl_size, s, &disk_list); | |
4389 | ||
4390 | for (i = 0; i < tbl_size; i++) { | |
4391 | struct imsm_disk *d; | |
4392 | struct intel_disk *idisk; | |
4393 | struct imsm_super *mpb = super_table[i]->anchor; | |
4394 | ||
4395 | s = super_table[i]; | |
4396 | d = &s->disks->disk; | |
4397 | ||
4398 | /* 'd' must appear in merged disk list for its | |
4399 | * configuration to be valid | |
4400 | */ | |
4401 | idisk = disk_list_get(d->serial, disk_list); | |
4402 | if (idisk && idisk->owner == i) | |
4403 | s = validate_members(s, disk_list, i); | |
4404 | else | |
4405 | s = NULL; | |
4406 | ||
4407 | if (!s) | |
1ade5cc1 N |
4408 | dprintf("marking family: %#x from %d:%d offline\n", |
4409 | mpb->family_num, | |
a2b97981 DW |
4410 | super_table[i]->disks->major, |
4411 | super_table[i]->disks->minor); | |
4412 | super_table[i] = s; | |
4413 | } | |
4414 | ||
4415 | /* This is where the mdadm implementation differs from the Windows | |
4416 | * driver which has no strict concept of a container. We can only | |
4417 | * assemble one family from a container, so when returning a prodigal | |
4418 | * array member to this system the code will not be able to disambiguate | |
4419 | * the container contents that should be assembled ("foreign" versus | |
4420 | * "local"). It requires user intervention to set the orig_family_num | |
4421 | * to a new value to establish a new container. The Windows driver in | |
4422 | * this situation fixes up the volume name in place and manages the | |
4423 | * foreign array as an independent entity. | |
4424 | */ | |
4425 | s = NULL; | |
4426 | spare = NULL; | |
4427 | conflict = 0; | |
4428 | for (i = 0; i < tbl_size; i++) { | |
4429 | struct intel_super *tbl_ent = super_table[i]; | |
4430 | int is_spare = 0; | |
4431 | ||
4432 | if (!tbl_ent) | |
4433 | continue; | |
4434 | ||
4435 | if (tbl_ent->anchor->num_raid_devs == 0) { | |
4436 | spare = tbl_ent; | |
4437 | is_spare = 1; | |
4438 | } | |
4439 | ||
4440 | if (s && !is_spare) { | |
4441 | show_conflicts(tbl_ent->anchor->family_num, *super_list); | |
4442 | conflict++; | |
4443 | } else if (!s && !is_spare) | |
4444 | s = tbl_ent; | |
4445 | } | |
4446 | ||
4447 | if (!s) | |
4448 | s = spare; | |
4449 | if (!s) { | |
4450 | champion = NULL; | |
4451 | goto out; | |
4452 | } | |
4453 | champion = s; | |
4454 | ||
4455 | if (conflict) | |
7a862a02 | 4456 | pr_err("Chose family %#x on '%s', assemble conflicts to new container with '--update=uuid'\n", |
a2b97981 DW |
4457 | __le32_to_cpu(s->anchor->family_num), s->disks->devname); |
4458 | ||
4459 | /* collect all dl's onto 'champion', and update them to | |
4460 | * champion's version of the status | |
4461 | */ | |
4462 | for (s = *super_list; s; s = s->next) { | |
4463 | struct imsm_super *mpb = champion->anchor; | |
4464 | struct dl *dl = s->disks; | |
4465 | ||
4466 | if (s == champion) | |
4467 | continue; | |
4468 | ||
5d7b407a CA |
4469 | mpb->attributes |= s->anchor->attributes & MPB_ATTRIB_2TB_DISK; |
4470 | ||
a2b97981 DW |
4471 | for (i = 0; i < mpb->num_disks; i++) { |
4472 | struct imsm_disk *disk; | |
4473 | ||
4474 | disk = __serial_to_disk(dl->serial, mpb, &dl->index); | |
4475 | if (disk) { | |
4476 | dl->disk = *disk; | |
4477 | /* only set index on disks that are a member of | |
4478 | * a populated contianer, i.e. one with | |
4479 | * raid_devs | |
4480 | */ | |
4481 | if (is_failed(&dl->disk)) | |
4482 | dl->index = -2; | |
4483 | else if (is_spare(&dl->disk)) | |
4484 | dl->index = -1; | |
4485 | break; | |
4486 | } | |
4487 | } | |
4488 | ||
4489 | if (i >= mpb->num_disks) { | |
4490 | struct intel_disk *idisk; | |
4491 | ||
4492 | idisk = disk_list_get(dl->serial, disk_list); | |
ecf408e9 | 4493 | if (idisk && is_spare(&idisk->disk) && |
a2b97981 DW |
4494 | !is_failed(&idisk->disk) && !is_configured(&idisk->disk)) |
4495 | dl->index = -1; | |
4496 | else { | |
4497 | dl->index = -2; | |
4498 | continue; | |
4499 | } | |
4500 | } | |
4501 | ||
4502 | dl->next = champion->disks; | |
4503 | champion->disks = dl; | |
4504 | s->disks = NULL; | |
4505 | } | |
4506 | ||
4507 | /* delete 'champion' from super_list */ | |
4508 | for (del = super_list; *del; ) { | |
4509 | if (*del == champion) { | |
4510 | *del = (*del)->next; | |
4511 | break; | |
4512 | } else | |
4513 | del = &(*del)->next; | |
4514 | } | |
4515 | champion->next = NULL; | |
4516 | ||
4517 | out: | |
4518 | while (disk_list) { | |
4519 | struct intel_disk *idisk = disk_list; | |
4520 | ||
4521 | disk_list = disk_list->next; | |
4522 | free(idisk); | |
4523 | } | |
4524 | ||
4525 | return champion; | |
4526 | } | |
4527 | ||
9587c373 LM |
4528 | static int |
4529 | get_sra_super_block(int fd, struct intel_super **super_list, char *devname, int *max, int keep_fd); | |
4dd2df09 | 4530 | static int get_super_block(struct intel_super **super_list, char *devnm, char *devname, |
9587c373 | 4531 | int major, int minor, int keep_fd); |
ec50f7b6 LM |
4532 | static int |
4533 | get_devlist_super_block(struct md_list *devlist, struct intel_super **super_list, | |
4534 | int *max, int keep_fd); | |
4535 | ||
cdddbdbc | 4536 | static int load_super_imsm_all(struct supertype *st, int fd, void **sbp, |
ec50f7b6 LM |
4537 | char *devname, struct md_list *devlist, |
4538 | int keep_fd) | |
cdddbdbc | 4539 | { |
a2b97981 DW |
4540 | struct intel_super *super_list = NULL; |
4541 | struct intel_super *super = NULL; | |
a2b97981 | 4542 | int err = 0; |
9587c373 | 4543 | int i = 0; |
dab4a513 | 4544 | |
9587c373 LM |
4545 | if (fd >= 0) |
4546 | /* 'fd' is an opened container */ | |
4547 | err = get_sra_super_block(fd, &super_list, devname, &i, keep_fd); | |
4548 | else | |
ec50f7b6 LM |
4549 | /* get super block from devlist devices */ |
4550 | err = get_devlist_super_block(devlist, &super_list, &i, keep_fd); | |
9587c373 | 4551 | if (err) |
1602d52c | 4552 | goto error; |
a2b97981 DW |
4553 | /* all mpbs enter, maybe one leaves */ |
4554 | super = imsm_thunderdome(&super_list, i); | |
4555 | if (!super) { | |
4556 | err = 1; | |
4557 | goto error; | |
cdddbdbc DW |
4558 | } |
4559 | ||
47ee5a45 DW |
4560 | if (find_missing(super) != 0) { |
4561 | free_imsm(super); | |
a2b97981 DW |
4562 | err = 2; |
4563 | goto error; | |
47ee5a45 | 4564 | } |
8e59f3d8 AK |
4565 | |
4566 | /* load migration record */ | |
4567 | err = load_imsm_migr_rec(super, NULL); | |
4c965cc9 AK |
4568 | if (err == -1) { |
4569 | /* migration is in progress, | |
4570 | * but migr_rec cannot be loaded, | |
4571 | */ | |
8e59f3d8 AK |
4572 | err = 4; |
4573 | goto error; | |
4574 | } | |
e2f41b2c AK |
4575 | |
4576 | /* Check migration compatibility */ | |
089f9d79 | 4577 | if (err == 0 && check_mpb_migr_compatibility(super) != 0) { |
e7b84f9d | 4578 | pr_err("Unsupported migration detected"); |
e2f41b2c AK |
4579 | if (devname) |
4580 | fprintf(stderr, " on %s\n", devname); | |
4581 | else | |
4582 | fprintf(stderr, " (IMSM).\n"); | |
4583 | ||
4584 | err = 5; | |
4585 | goto error; | |
4586 | } | |
4587 | ||
a2b97981 DW |
4588 | err = 0; |
4589 | ||
4590 | error: | |
4591 | while (super_list) { | |
4592 | struct intel_super *s = super_list; | |
4593 | ||
4594 | super_list = super_list->next; | |
4595 | free_imsm(s); | |
4596 | } | |
9587c373 | 4597 | |
a2b97981 DW |
4598 | if (err) |
4599 | return err; | |
f7e7067b | 4600 | |
cdddbdbc | 4601 | *sbp = super; |
9587c373 | 4602 | if (fd >= 0) |
4dd2df09 | 4603 | strcpy(st->container_devnm, fd2devnm(fd)); |
9587c373 | 4604 | else |
4dd2df09 | 4605 | st->container_devnm[0] = 0; |
a2b97981 | 4606 | if (err == 0 && st->ss == NULL) { |
bf5a934a | 4607 | st->ss = &super_imsm; |
cdddbdbc DW |
4608 | st->minor_version = 0; |
4609 | st->max_devs = IMSM_MAX_DEVICES; | |
4610 | } | |
cdddbdbc DW |
4611 | return 0; |
4612 | } | |
2b959fbf | 4613 | |
ec50f7b6 LM |
4614 | static int |
4615 | get_devlist_super_block(struct md_list *devlist, struct intel_super **super_list, | |
4616 | int *max, int keep_fd) | |
4617 | { | |
4618 | struct md_list *tmpdev; | |
4619 | int err = 0; | |
4620 | int i = 0; | |
9587c373 | 4621 | |
ec50f7b6 LM |
4622 | for (i = 0, tmpdev = devlist; tmpdev; tmpdev = tmpdev->next) { |
4623 | if (tmpdev->used != 1) | |
4624 | continue; | |
4625 | if (tmpdev->container == 1) { | |
ca9de185 | 4626 | int lmax = 0; |
ec50f7b6 LM |
4627 | int fd = dev_open(tmpdev->devname, O_RDONLY|O_EXCL); |
4628 | if (fd < 0) { | |
e7b84f9d | 4629 | pr_err("cannot open device %s: %s\n", |
ec50f7b6 LM |
4630 | tmpdev->devname, strerror(errno)); |
4631 | err = 8; | |
4632 | goto error; | |
4633 | } | |
4634 | err = get_sra_super_block(fd, super_list, | |
4635 | tmpdev->devname, &lmax, | |
4636 | keep_fd); | |
4637 | i += lmax; | |
4638 | close(fd); | |
4639 | if (err) { | |
4640 | err = 7; | |
4641 | goto error; | |
4642 | } | |
4643 | } else { | |
4644 | int major = major(tmpdev->st_rdev); | |
4645 | int minor = minor(tmpdev->st_rdev); | |
4646 | err = get_super_block(super_list, | |
4dd2df09 | 4647 | NULL, |
ec50f7b6 LM |
4648 | tmpdev->devname, |
4649 | major, minor, | |
4650 | keep_fd); | |
4651 | i++; | |
4652 | if (err) { | |
4653 | err = 6; | |
4654 | goto error; | |
4655 | } | |
4656 | } | |
4657 | } | |
4658 | error: | |
4659 | *max = i; | |
4660 | return err; | |
4661 | } | |
9587c373 | 4662 | |
4dd2df09 | 4663 | static int get_super_block(struct intel_super **super_list, char *devnm, char *devname, |
9587c373 LM |
4664 | int major, int minor, int keep_fd) |
4665 | { | |
594dc1b8 | 4666 | struct intel_super *s; |
9587c373 LM |
4667 | char nm[32]; |
4668 | int dfd = -1; | |
9587c373 LM |
4669 | int err = 0; |
4670 | int retry; | |
4671 | ||
4672 | s = alloc_super(); | |
4673 | if (!s) { | |
4674 | err = 1; | |
4675 | goto error; | |
4676 | } | |
4677 | ||
4678 | sprintf(nm, "%d:%d", major, minor); | |
4679 | dfd = dev_open(nm, O_RDWR); | |
4680 | if (dfd < 0) { | |
4681 | err = 2; | |
4682 | goto error; | |
4683 | } | |
4684 | ||
fa7bb6f8 | 4685 | get_dev_sector_size(dfd, NULL, &s->sector_size); |
cb8f6859 | 4686 | find_intel_hba_capability(dfd, s, devname); |
9587c373 LM |
4687 | err = load_and_parse_mpb(dfd, s, NULL, keep_fd); |
4688 | ||
4689 | /* retry the load if we might have raced against mdmon */ | |
4dd2df09 | 4690 | if (err == 3 && devnm && mdmon_running(devnm)) |
9587c373 LM |
4691 | for (retry = 0; retry < 3; retry++) { |
4692 | usleep(3000); | |
4693 | err = load_and_parse_mpb(dfd, s, NULL, keep_fd); | |
4694 | if (err != 3) | |
4695 | break; | |
4696 | } | |
4697 | error: | |
4698 | if (!err) { | |
4699 | s->next = *super_list; | |
4700 | *super_list = s; | |
4701 | } else { | |
4702 | if (s) | |
8d67477f | 4703 | free_imsm(s); |
36614e95 | 4704 | if (dfd >= 0) |
9587c373 LM |
4705 | close(dfd); |
4706 | } | |
089f9d79 | 4707 | if (dfd >= 0 && !keep_fd) |
9587c373 LM |
4708 | close(dfd); |
4709 | return err; | |
4710 | ||
4711 | } | |
4712 | ||
4713 | static int | |
4714 | get_sra_super_block(int fd, struct intel_super **super_list, char *devname, int *max, int keep_fd) | |
4715 | { | |
4716 | struct mdinfo *sra; | |
4dd2df09 | 4717 | char *devnm; |
9587c373 LM |
4718 | struct mdinfo *sd; |
4719 | int err = 0; | |
4720 | int i = 0; | |
4dd2df09 | 4721 | sra = sysfs_read(fd, NULL, GET_LEVEL|GET_VERSION|GET_DEVS|GET_STATE); |
9587c373 LM |
4722 | if (!sra) |
4723 | return 1; | |
4724 | ||
4725 | if (sra->array.major_version != -1 || | |
4726 | sra->array.minor_version != -2 || | |
4727 | strcmp(sra->text_version, "imsm") != 0) { | |
4728 | err = 1; | |
4729 | goto error; | |
4730 | } | |
4731 | /* load all mpbs */ | |
4dd2df09 | 4732 | devnm = fd2devnm(fd); |
9587c373 | 4733 | for (sd = sra->devs, i = 0; sd; sd = sd->next, i++) { |
4dd2df09 | 4734 | if (get_super_block(super_list, devnm, devname, |
9587c373 LM |
4735 | sd->disk.major, sd->disk.minor, keep_fd) != 0) { |
4736 | err = 7; | |
4737 | goto error; | |
4738 | } | |
4739 | } | |
4740 | error: | |
4741 | sysfs_free(sra); | |
4742 | *max = i; | |
4743 | return err; | |
4744 | } | |
4745 | ||
2b959fbf N |
4746 | static int load_container_imsm(struct supertype *st, int fd, char *devname) |
4747 | { | |
ec50f7b6 | 4748 | return load_super_imsm_all(st, fd, &st->sb, devname, NULL, 1); |
2b959fbf | 4749 | } |
cdddbdbc DW |
4750 | #endif |
4751 | ||
4752 | static int load_super_imsm(struct supertype *st, int fd, char *devname) | |
4753 | { | |
4754 | struct intel_super *super; | |
4755 | int rv; | |
8a3544f8 | 4756 | int retry; |
cdddbdbc | 4757 | |
357ac106 | 4758 | if (test_partition(fd)) |
691c6ee1 N |
4759 | /* IMSM not allowed on partitions */ |
4760 | return 1; | |
4761 | ||
37424f13 DW |
4762 | free_super_imsm(st); |
4763 | ||
49133e57 | 4764 | super = alloc_super(); |
fa7bb6f8 | 4765 | get_dev_sector_size(fd, NULL, &super->sector_size); |
8d67477f TM |
4766 | if (!super) |
4767 | return 1; | |
ea2bc72b LM |
4768 | /* Load hba and capabilities if they exist. |
4769 | * But do not preclude loading metadata in case capabilities or hba are | |
4770 | * non-compliant and ignore_hw_compat is set. | |
4771 | */ | |
d424212e | 4772 | rv = find_intel_hba_capability(fd, super, devname); |
f2f5c343 | 4773 | /* no orom/efi or non-intel hba of the disk */ |
089f9d79 | 4774 | if (rv != 0 && st->ignore_hw_compat == 0) { |
f2f5c343 | 4775 | if (devname) |
e7b84f9d | 4776 | pr_err("No OROM/EFI properties for %s\n", devname); |
f2f5c343 LM |
4777 | free_imsm(super); |
4778 | return 2; | |
4779 | } | |
a2b97981 | 4780 | rv = load_and_parse_mpb(fd, super, devname, 0); |
cdddbdbc | 4781 | |
8a3544f8 AP |
4782 | /* retry the load if we might have raced against mdmon */ |
4783 | if (rv == 3) { | |
f96b1302 AP |
4784 | struct mdstat_ent *mdstat = NULL; |
4785 | char *name = fd2kname(fd); | |
4786 | ||
4787 | if (name) | |
4788 | mdstat = mdstat_by_component(name); | |
8a3544f8 AP |
4789 | |
4790 | if (mdstat && mdmon_running(mdstat->devnm) && getpid() != mdmon_pid(mdstat->devnm)) { | |
4791 | for (retry = 0; retry < 3; retry++) { | |
4792 | usleep(3000); | |
4793 | rv = load_and_parse_mpb(fd, super, devname, 0); | |
4794 | if (rv != 3) | |
4795 | break; | |
4796 | } | |
4797 | } | |
4798 | ||
4799 | free_mdstat(mdstat); | |
4800 | } | |
4801 | ||
cdddbdbc DW |
4802 | if (rv) { |
4803 | if (devname) | |
7a862a02 | 4804 | pr_err("Failed to load all information sections on %s\n", devname); |
cdddbdbc DW |
4805 | free_imsm(super); |
4806 | return rv; | |
4807 | } | |
4808 | ||
4809 | st->sb = super; | |
4810 | if (st->ss == NULL) { | |
4811 | st->ss = &super_imsm; | |
4812 | st->minor_version = 0; | |
4813 | st->max_devs = IMSM_MAX_DEVICES; | |
4814 | } | |
8e59f3d8 AK |
4815 | |
4816 | /* load migration record */ | |
2e062e82 AK |
4817 | if (load_imsm_migr_rec(super, NULL) == 0) { |
4818 | /* Check for unsupported migration features */ | |
4819 | if (check_mpb_migr_compatibility(super) != 0) { | |
e7b84f9d | 4820 | pr_err("Unsupported migration detected"); |
2e062e82 AK |
4821 | if (devname) |
4822 | fprintf(stderr, " on %s\n", devname); | |
4823 | else | |
4824 | fprintf(stderr, " (IMSM).\n"); | |
4825 | return 3; | |
4826 | } | |
e2f41b2c AK |
4827 | } |
4828 | ||
cdddbdbc DW |
4829 | return 0; |
4830 | } | |
4831 | ||
ef6ffade DW |
4832 | static __u16 info_to_blocks_per_strip(mdu_array_info_t *info) |
4833 | { | |
4834 | if (info->level == 1) | |
4835 | return 128; | |
4836 | return info->chunk_size >> 9; | |
4837 | } | |
4838 | ||
5551b113 CA |
4839 | static unsigned long long info_to_blocks_per_member(mdu_array_info_t *info, |
4840 | unsigned long long size) | |
fcfd9599 | 4841 | { |
4025c288 | 4842 | if (info->level == 1) |
5551b113 | 4843 | return size * 2; |
4025c288 | 4844 | else |
5551b113 | 4845 | return (size * 2) & ~(info_to_blocks_per_strip(info) - 1); |
fcfd9599 DW |
4846 | } |
4847 | ||
4d1313e9 DW |
4848 | static void imsm_update_version_info(struct intel_super *super) |
4849 | { | |
4850 | /* update the version and attributes */ | |
4851 | struct imsm_super *mpb = super->anchor; | |
4852 | char *version; | |
4853 | struct imsm_dev *dev; | |
4854 | struct imsm_map *map; | |
4855 | int i; | |
4856 | ||
4857 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
4858 | dev = get_imsm_dev(super, i); | |
238c0a71 | 4859 | map = get_imsm_map(dev, MAP_0); |
4d1313e9 DW |
4860 | if (__le32_to_cpu(dev->size_high) > 0) |
4861 | mpb->attributes |= MPB_ATTRIB_2TB; | |
4862 | ||
4863 | /* FIXME detect when an array spans a port multiplier */ | |
4864 | #if 0 | |
4865 | mpb->attributes |= MPB_ATTRIB_PM; | |
4866 | #endif | |
4867 | ||
4868 | if (mpb->num_raid_devs > 1 || | |
4869 | mpb->attributes != MPB_ATTRIB_CHECKSUM_VERIFY) { | |
4870 | version = MPB_VERSION_ATTRIBS; | |
4871 | switch (get_imsm_raid_level(map)) { | |
4872 | case 0: mpb->attributes |= MPB_ATTRIB_RAID0; break; | |
4873 | case 1: mpb->attributes |= MPB_ATTRIB_RAID1; break; | |
4874 | case 10: mpb->attributes |= MPB_ATTRIB_RAID10; break; | |
4875 | case 5: mpb->attributes |= MPB_ATTRIB_RAID5; break; | |
4876 | } | |
4877 | } else { | |
4878 | if (map->num_members >= 5) | |
4879 | version = MPB_VERSION_5OR6_DISK_ARRAY; | |
4880 | else if (dev->status == DEV_CLONE_N_GO) | |
4881 | version = MPB_VERSION_CNG; | |
4882 | else if (get_imsm_raid_level(map) == 5) | |
4883 | version = MPB_VERSION_RAID5; | |
4884 | else if (map->num_members >= 3) | |
4885 | version = MPB_VERSION_3OR4_DISK_ARRAY; | |
4886 | else if (get_imsm_raid_level(map) == 1) | |
4887 | version = MPB_VERSION_RAID1; | |
4888 | else | |
4889 | version = MPB_VERSION_RAID0; | |
4890 | } | |
4891 | strcpy(((char *) mpb->sig) + strlen(MPB_SIGNATURE), version); | |
4892 | } | |
4893 | } | |
4894 | ||
aa534678 DW |
4895 | static int check_name(struct intel_super *super, char *name, int quiet) |
4896 | { | |
4897 | struct imsm_super *mpb = super->anchor; | |
4898 | char *reason = NULL; | |
4899 | int i; | |
4900 | ||
4901 | if (strlen(name) > MAX_RAID_SERIAL_LEN) | |
4902 | reason = "must be 16 characters or less"; | |
4903 | ||
4904 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
4905 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
4906 | ||
4907 | if (strncmp((char *) dev->volume, name, MAX_RAID_SERIAL_LEN) == 0) { | |
4908 | reason = "already exists"; | |
4909 | break; | |
4910 | } | |
4911 | } | |
4912 | ||
4913 | if (reason && !quiet) | |
e7b84f9d | 4914 | pr_err("imsm volume name %s\n", reason); |
aa534678 DW |
4915 | |
4916 | return !reason; | |
4917 | } | |
4918 | ||
8b353278 DW |
4919 | static int init_super_imsm_volume(struct supertype *st, mdu_array_info_t *info, |
4920 | unsigned long long size, char *name, | |
83cd1e97 N |
4921 | char *homehost, int *uuid, |
4922 | long long data_offset) | |
cdddbdbc | 4923 | { |
c2c087e6 DW |
4924 | /* We are creating a volume inside a pre-existing container. |
4925 | * so st->sb is already set. | |
4926 | */ | |
4927 | struct intel_super *super = st->sb; | |
f36a9ecd | 4928 | unsigned int sector_size = super->sector_size; |
949c47a0 | 4929 | struct imsm_super *mpb = super->anchor; |
ba2de7ba | 4930 | struct intel_dev *dv; |
c2c087e6 DW |
4931 | struct imsm_dev *dev; |
4932 | struct imsm_vol *vol; | |
4933 | struct imsm_map *map; | |
4934 | int idx = mpb->num_raid_devs; | |
4935 | int i; | |
4936 | unsigned long long array_blocks; | |
2c092cad | 4937 | size_t size_old, size_new; |
5551b113 | 4938 | unsigned long long num_data_stripes; |
cdddbdbc | 4939 | |
88c32bb1 | 4940 | if (super->orom && mpb->num_raid_devs >= super->orom->vpa) { |
7a862a02 | 4941 | pr_err("This imsm-container already has the maximum of %d volumes\n", super->orom->vpa); |
c2c087e6 DW |
4942 | return 0; |
4943 | } | |
4944 | ||
2c092cad DW |
4945 | /* ensure the mpb is large enough for the new data */ |
4946 | size_old = __le32_to_cpu(mpb->mpb_size); | |
4947 | size_new = disks_to_mpb_size(info->nr_disks); | |
4948 | if (size_new > size_old) { | |
4949 | void *mpb_new; | |
f36a9ecd | 4950 | size_t size_round = ROUND_UP(size_new, sector_size); |
2c092cad | 4951 | |
f36a9ecd | 4952 | if (posix_memalign(&mpb_new, sector_size, size_round) != 0) { |
e7b84f9d | 4953 | pr_err("could not allocate new mpb\n"); |
2c092cad DW |
4954 | return 0; |
4955 | } | |
de44e46f PB |
4956 | if (posix_memalign(&super->migr_rec_buf, sector_size, |
4957 | MIGR_REC_BUF_SECTORS*sector_size) != 0) { | |
1ade5cc1 | 4958 | pr_err("could not allocate migr_rec buffer\n"); |
8e59f3d8 AK |
4959 | free(super->buf); |
4960 | free(super); | |
ea944c8f | 4961 | free(mpb_new); |
8e59f3d8 AK |
4962 | return 0; |
4963 | } | |
2c092cad DW |
4964 | memcpy(mpb_new, mpb, size_old); |
4965 | free(mpb); | |
4966 | mpb = mpb_new; | |
949c47a0 | 4967 | super->anchor = mpb_new; |
2c092cad DW |
4968 | mpb->mpb_size = __cpu_to_le32(size_new); |
4969 | memset(mpb_new + size_old, 0, size_round - size_old); | |
4970 | } | |
bf5a934a | 4971 | super->current_vol = idx; |
3960e579 DW |
4972 | |
4973 | /* handle 'failed_disks' by either: | |
4974 | * a) create dummy disk entries in the table if this the first | |
4975 | * volume in the array. We add them here as this is the only | |
4976 | * opportunity to add them. add_to_super_imsm_volume() | |
4977 | * handles the non-failed disks and continues incrementing | |
4978 | * mpb->num_disks. | |
4979 | * b) validate that 'failed_disks' matches the current number | |
4980 | * of missing disks if the container is populated | |
d23fe947 | 4981 | */ |
3960e579 | 4982 | if (super->current_vol == 0) { |
d23fe947 | 4983 | mpb->num_disks = 0; |
3960e579 DW |
4984 | for (i = 0; i < info->failed_disks; i++) { |
4985 | struct imsm_disk *disk; | |
4986 | ||
4987 | mpb->num_disks++; | |
4988 | disk = __get_imsm_disk(mpb, i); | |
4989 | disk->status = CONFIGURED_DISK | FAILED_DISK; | |
4990 | disk->scsi_id = __cpu_to_le32(~(__u32)0); | |
4991 | snprintf((char *) disk->serial, MAX_RAID_SERIAL_LEN, | |
4992 | "missing:%d", i); | |
4993 | } | |
4994 | find_missing(super); | |
4995 | } else { | |
4996 | int missing = 0; | |
4997 | struct dl *d; | |
4998 | ||
4999 | for (d = super->missing; d; d = d->next) | |
5000 | missing++; | |
5001 | if (info->failed_disks > missing) { | |
e7b84f9d | 5002 | pr_err("unable to add 'missing' disk to container\n"); |
3960e579 DW |
5003 | return 0; |
5004 | } | |
5005 | } | |
5a038140 | 5006 | |
aa534678 DW |
5007 | if (!check_name(super, name, 0)) |
5008 | return 0; | |
503975b9 N |
5009 | dv = xmalloc(sizeof(*dv)); |
5010 | dev = xcalloc(1, sizeof(*dev) + sizeof(__u32) * (info->raid_disks - 1)); | |
c2c087e6 | 5011 | strncpy((char *) dev->volume, name, MAX_RAID_SERIAL_LEN); |
e03640bd | 5012 | array_blocks = calc_array_size(info->level, info->raid_disks, |
03bcbc65 | 5013 | info->layout, info->chunk_size, |
5551b113 | 5014 | size * 2); |
979d38be DW |
5015 | /* round array size down to closest MB */ |
5016 | array_blocks = (array_blocks >> SECT_PER_MB_SHIFT) << SECT_PER_MB_SHIFT; | |
5017 | ||
c2c087e6 DW |
5018 | dev->size_low = __cpu_to_le32((__u32) array_blocks); |
5019 | dev->size_high = __cpu_to_le32((__u32) (array_blocks >> 32)); | |
1a2487c2 | 5020 | dev->status = (DEV_READ_COALESCING | DEV_WRITE_COALESCING); |
c2c087e6 DW |
5021 | vol = &dev->vol; |
5022 | vol->migr_state = 0; | |
1484e727 | 5023 | set_migr_type(dev, MIGR_INIT); |
3960e579 | 5024 | vol->dirty = !info->state; |
f8f603f1 | 5025 | vol->curr_migr_unit = 0; |
238c0a71 | 5026 | map = get_imsm_map(dev, MAP_0); |
5551b113 CA |
5027 | set_pba_of_lba0(map, super->create_offset); |
5028 | set_blocks_per_member(map, info_to_blocks_per_member(info, size)); | |
ef6ffade | 5029 | map->blocks_per_strip = __cpu_to_le16(info_to_blocks_per_strip(info)); |
0556e1a2 | 5030 | map->failed_disk_num = ~0; |
bf4442ab | 5031 | if (info->level > 0) |
fffaf1ff N |
5032 | map->map_state = (info->state ? IMSM_T_STATE_NORMAL |
5033 | : IMSM_T_STATE_UNINITIALIZED); | |
bf4442ab AK |
5034 | else |
5035 | map->map_state = info->failed_disks ? IMSM_T_STATE_FAILED : | |
5036 | IMSM_T_STATE_NORMAL; | |
252d23c0 | 5037 | map->ddf = 1; |
ef6ffade DW |
5038 | |
5039 | if (info->level == 1 && info->raid_disks > 2) { | |
38950822 AW |
5040 | free(dev); |
5041 | free(dv); | |
7a862a02 | 5042 | pr_err("imsm does not support more than 2 disksin a raid1 volume\n"); |
ef6ffade DW |
5043 | return 0; |
5044 | } | |
81062a36 DW |
5045 | |
5046 | map->raid_level = info->level; | |
4d1313e9 | 5047 | if (info->level == 10) { |
c2c087e6 | 5048 | map->raid_level = 1; |
4d1313e9 | 5049 | map->num_domains = info->raid_disks / 2; |
81062a36 DW |
5050 | } else if (info->level == 1) |
5051 | map->num_domains = info->raid_disks; | |
5052 | else | |
ff596308 | 5053 | map->num_domains = 1; |
81062a36 | 5054 | |
5551b113 CA |
5055 | /* info->size is only int so use the 'size' parameter instead */ |
5056 | num_data_stripes = (size * 2) / info_to_blocks_per_strip(info); | |
5057 | num_data_stripes /= map->num_domains; | |
5058 | set_num_data_stripes(map, num_data_stripes); | |
ef6ffade | 5059 | |
c2c087e6 DW |
5060 | map->num_members = info->raid_disks; |
5061 | for (i = 0; i < map->num_members; i++) { | |
5062 | /* initialized in add_to_super */ | |
4eb26970 | 5063 | set_imsm_ord_tbl_ent(map, i, IMSM_ORD_REBUILD); |
c2c087e6 | 5064 | } |
949c47a0 | 5065 | mpb->num_raid_devs++; |
ba2de7ba DW |
5066 | |
5067 | dv->dev = dev; | |
5068 | dv->index = super->current_vol; | |
5069 | dv->next = super->devlist; | |
5070 | super->devlist = dv; | |
c2c087e6 | 5071 | |
4d1313e9 DW |
5072 | imsm_update_version_info(super); |
5073 | ||
c2c087e6 | 5074 | return 1; |
cdddbdbc DW |
5075 | } |
5076 | ||
bf5a934a DW |
5077 | static int init_super_imsm(struct supertype *st, mdu_array_info_t *info, |
5078 | unsigned long long size, char *name, | |
83cd1e97 N |
5079 | char *homehost, int *uuid, |
5080 | unsigned long long data_offset) | |
bf5a934a DW |
5081 | { |
5082 | /* This is primarily called by Create when creating a new array. | |
5083 | * We will then get add_to_super called for each component, and then | |
5084 | * write_init_super called to write it out to each device. | |
5085 | * For IMSM, Create can create on fresh devices or on a pre-existing | |
5086 | * array. | |
5087 | * To create on a pre-existing array a different method will be called. | |
5088 | * This one is just for fresh drives. | |
5089 | */ | |
5090 | struct intel_super *super; | |
5091 | struct imsm_super *mpb; | |
5092 | size_t mpb_size; | |
4d1313e9 | 5093 | char *version; |
bf5a934a | 5094 | |
83cd1e97 | 5095 | if (data_offset != INVALID_SECTORS) { |
ed503f89 | 5096 | pr_err("data-offset not supported by imsm\n"); |
83cd1e97 N |
5097 | return 0; |
5098 | } | |
5099 | ||
bf5a934a | 5100 | if (st->sb) |
83cd1e97 N |
5101 | return init_super_imsm_volume(st, info, size, name, homehost, uuid, |
5102 | data_offset); | |
e683ca88 DW |
5103 | |
5104 | if (info) | |
5105 | mpb_size = disks_to_mpb_size(info->nr_disks); | |
5106 | else | |
f36a9ecd | 5107 | mpb_size = MAX_SECTOR_SIZE; |
bf5a934a | 5108 | |
49133e57 | 5109 | super = alloc_super(); |
f36a9ecd PB |
5110 | if (super && |
5111 | posix_memalign(&super->buf, MAX_SECTOR_SIZE, mpb_size) != 0) { | |
8d67477f | 5112 | free_imsm(super); |
e683ca88 DW |
5113 | super = NULL; |
5114 | } | |
5115 | if (!super) { | |
1ade5cc1 | 5116 | pr_err("could not allocate superblock\n"); |
bf5a934a DW |
5117 | return 0; |
5118 | } | |
de44e46f PB |
5119 | if (posix_memalign(&super->migr_rec_buf, MAX_SECTOR_SIZE, |
5120 | MIGR_REC_BUF_SECTORS*MAX_SECTOR_SIZE) != 0) { | |
1ade5cc1 | 5121 | pr_err("could not allocate migr_rec buffer\n"); |
8e59f3d8 | 5122 | free(super->buf); |
8d67477f | 5123 | free_imsm(super); |
8e59f3d8 AK |
5124 | return 0; |
5125 | } | |
e683ca88 | 5126 | memset(super->buf, 0, mpb_size); |
ef649044 | 5127 | mpb = super->buf; |
e683ca88 DW |
5128 | mpb->mpb_size = __cpu_to_le32(mpb_size); |
5129 | st->sb = super; | |
5130 | ||
5131 | if (info == NULL) { | |
5132 | /* zeroing superblock */ | |
5133 | return 0; | |
5134 | } | |
bf5a934a | 5135 | |
4d1313e9 DW |
5136 | mpb->attributes = MPB_ATTRIB_CHECKSUM_VERIFY; |
5137 | ||
5138 | version = (char *) mpb->sig; | |
5139 | strcpy(version, MPB_SIGNATURE); | |
5140 | version += strlen(MPB_SIGNATURE); | |
5141 | strcpy(version, MPB_VERSION_RAID0); | |
bf5a934a | 5142 | |
bf5a934a DW |
5143 | return 1; |
5144 | } | |
5145 | ||
0e600426 | 5146 | #ifndef MDASSEMBLE |
f20c3968 | 5147 | static int add_to_super_imsm_volume(struct supertype *st, mdu_disk_info_t *dk, |
bf5a934a DW |
5148 | int fd, char *devname) |
5149 | { | |
5150 | struct intel_super *super = st->sb; | |
d23fe947 | 5151 | struct imsm_super *mpb = super->anchor; |
3960e579 | 5152 | struct imsm_disk *_disk; |
bf5a934a DW |
5153 | struct imsm_dev *dev; |
5154 | struct imsm_map *map; | |
3960e579 | 5155 | struct dl *dl, *df; |
4eb26970 | 5156 | int slot; |
bf5a934a | 5157 | |
949c47a0 | 5158 | dev = get_imsm_dev(super, super->current_vol); |
238c0a71 | 5159 | map = get_imsm_map(dev, MAP_0); |
bf5a934a | 5160 | |
208933a7 | 5161 | if (! (dk->state & (1<<MD_DISK_SYNC))) { |
e7b84f9d | 5162 | pr_err("%s: Cannot add spare devices to IMSM volume\n", |
208933a7 N |
5163 | devname); |
5164 | return 1; | |
5165 | } | |
5166 | ||
efb30e7f DW |
5167 | if (fd == -1) { |
5168 | /* we're doing autolayout so grab the pre-marked (in | |
5169 | * validate_geometry) raid_disk | |
5170 | */ | |
5171 | for (dl = super->disks; dl; dl = dl->next) | |
5172 | if (dl->raiddisk == dk->raid_disk) | |
5173 | break; | |
5174 | } else { | |
5175 | for (dl = super->disks; dl ; dl = dl->next) | |
5176 | if (dl->major == dk->major && | |
5177 | dl->minor == dk->minor) | |
5178 | break; | |
5179 | } | |
d23fe947 | 5180 | |
208933a7 | 5181 | if (!dl) { |
e7b84f9d | 5182 | pr_err("%s is not a member of the same container\n", devname); |
f20c3968 | 5183 | return 1; |
208933a7 | 5184 | } |
bf5a934a | 5185 | |
d23fe947 DW |
5186 | /* add a pristine spare to the metadata */ |
5187 | if (dl->index < 0) { | |
5188 | dl->index = super->anchor->num_disks; | |
5189 | super->anchor->num_disks++; | |
5190 | } | |
4eb26970 DW |
5191 | /* Check the device has not already been added */ |
5192 | slot = get_imsm_disk_slot(map, dl->index); | |
5193 | if (slot >= 0 && | |
238c0a71 | 5194 | (get_imsm_ord_tbl_ent(dev, slot, MAP_X) & IMSM_ORD_REBUILD) == 0) { |
e7b84f9d | 5195 | pr_err("%s has been included in this array twice\n", |
4eb26970 DW |
5196 | devname); |
5197 | return 1; | |
5198 | } | |
656b6b5a | 5199 | set_imsm_ord_tbl_ent(map, dk->raid_disk, dl->index); |
ee5aad5a | 5200 | dl->disk.status = CONFIGURED_DISK; |
d23fe947 | 5201 | |
3960e579 DW |
5202 | /* update size of 'missing' disks to be at least as large as the |
5203 | * largest acitve member (we only have dummy missing disks when | |
5204 | * creating the first volume) | |
5205 | */ | |
5206 | if (super->current_vol == 0) { | |
5207 | for (df = super->missing; df; df = df->next) { | |
5551b113 CA |
5208 | if (total_blocks(&dl->disk) > total_blocks(&df->disk)) |
5209 | set_total_blocks(&df->disk, total_blocks(&dl->disk)); | |
3960e579 DW |
5210 | _disk = __get_imsm_disk(mpb, df->index); |
5211 | *_disk = df->disk; | |
5212 | } | |
5213 | } | |
5214 | ||
5215 | /* refresh unset/failed slots to point to valid 'missing' entries */ | |
5216 | for (df = super->missing; df; df = df->next) | |
5217 | for (slot = 0; slot < mpb->num_disks; slot++) { | |
238c0a71 | 5218 | __u32 ord = get_imsm_ord_tbl_ent(dev, slot, MAP_X); |
3960e579 DW |
5219 | |
5220 | if ((ord & IMSM_ORD_REBUILD) == 0) | |
5221 | continue; | |
5222 | set_imsm_ord_tbl_ent(map, slot, df->index | IMSM_ORD_REBUILD); | |
1ace8403 | 5223 | if (is_gen_migration(dev)) { |
238c0a71 AK |
5224 | struct imsm_map *map2 = get_imsm_map(dev, |
5225 | MAP_1); | |
0a108d63 | 5226 | int slot2 = get_imsm_disk_slot(map2, df->index); |
089f9d79 | 5227 | if (slot2 < map2->num_members && slot2 >= 0) { |
1ace8403 | 5228 | __u32 ord2 = get_imsm_ord_tbl_ent(dev, |
238c0a71 AK |
5229 | slot2, |
5230 | MAP_1); | |
1ace8403 AK |
5231 | if ((unsigned)df->index == |
5232 | ord_to_idx(ord2)) | |
5233 | set_imsm_ord_tbl_ent(map2, | |
0a108d63 | 5234 | slot2, |
1ace8403 AK |
5235 | df->index | |
5236 | IMSM_ORD_REBUILD); | |
5237 | } | |
5238 | } | |
3960e579 DW |
5239 | dprintf("set slot:%d to missing disk:%d\n", slot, df->index); |
5240 | break; | |
5241 | } | |
5242 | ||
d23fe947 DW |
5243 | /* if we are creating the first raid device update the family number */ |
5244 | if (super->current_vol == 0) { | |
5245 | __u32 sum; | |
5246 | struct imsm_dev *_dev = __get_imsm_dev(mpb, 0); | |
d23fe947 | 5247 | |
3960e579 | 5248 | _disk = __get_imsm_disk(mpb, dl->index); |
791b666a | 5249 | if (!_dev || !_disk) { |
e7b84f9d | 5250 | pr_err("BUG mpb setup error\n"); |
791b666a AW |
5251 | return 1; |
5252 | } | |
d23fe947 DW |
5253 | *_dev = *dev; |
5254 | *_disk = dl->disk; | |
148acb7b DW |
5255 | sum = random32(); |
5256 | sum += __gen_imsm_checksum(mpb); | |
d23fe947 | 5257 | mpb->family_num = __cpu_to_le32(sum); |
148acb7b | 5258 | mpb->orig_family_num = mpb->family_num; |
d23fe947 | 5259 | } |
ca0748fa | 5260 | super->current_disk = dl; |
f20c3968 | 5261 | return 0; |
bf5a934a DW |
5262 | } |
5263 | ||
a8619d23 AK |
5264 | /* mark_spare() |
5265 | * Function marks disk as spare and restores disk serial | |
5266 | * in case it was previously marked as failed by takeover operation | |
5267 | * reruns: | |
5268 | * -1 : critical error | |
5269 | * 0 : disk is marked as spare but serial is not set | |
5270 | * 1 : success | |
5271 | */ | |
5272 | int mark_spare(struct dl *disk) | |
5273 | { | |
5274 | __u8 serial[MAX_RAID_SERIAL_LEN]; | |
5275 | int ret_val = -1; | |
5276 | ||
5277 | if (!disk) | |
5278 | return ret_val; | |
5279 | ||
5280 | ret_val = 0; | |
5281 | if (!imsm_read_serial(disk->fd, NULL, serial)) { | |
5282 | /* Restore disk serial number, because takeover marks disk | |
5283 | * as failed and adds to serial ':0' before it becomes | |
5284 | * a spare disk. | |
5285 | */ | |
5286 | serialcpy(disk->serial, serial); | |
5287 | serialcpy(disk->disk.serial, serial); | |
5288 | ret_val = 1; | |
5289 | } | |
5290 | disk->disk.status = SPARE_DISK; | |
5291 | disk->index = -1; | |
5292 | ||
5293 | return ret_val; | |
5294 | } | |
88654014 | 5295 | |
f20c3968 | 5296 | static int add_to_super_imsm(struct supertype *st, mdu_disk_info_t *dk, |
72ca9bcf N |
5297 | int fd, char *devname, |
5298 | unsigned long long data_offset) | |
cdddbdbc | 5299 | { |
c2c087e6 | 5300 | struct intel_super *super = st->sb; |
c2c087e6 DW |
5301 | struct dl *dd; |
5302 | unsigned long long size; | |
fa7bb6f8 | 5303 | unsigned int member_sector_size; |
f2f27e63 | 5304 | __u32 id; |
c2c087e6 DW |
5305 | int rv; |
5306 | struct stat stb; | |
5307 | ||
88654014 LM |
5308 | /* If we are on an RAID enabled platform check that the disk is |
5309 | * attached to the raid controller. | |
5310 | * We do not need to test disks attachment for container based additions, | |
5311 | * they shall be already tested when container was created/assembled. | |
88c32bb1 | 5312 | */ |
d424212e | 5313 | rv = find_intel_hba_capability(fd, super, devname); |
f2f5c343 | 5314 | /* no orom/efi or non-intel hba of the disk */ |
f0f5a016 LM |
5315 | if (rv != 0) { |
5316 | dprintf("capability: %p fd: %d ret: %d\n", | |
5317 | super->orom, fd, rv); | |
5318 | return 1; | |
88c32bb1 DW |
5319 | } |
5320 | ||
f20c3968 DW |
5321 | if (super->current_vol >= 0) |
5322 | return add_to_super_imsm_volume(st, dk, fd, devname); | |
bf5a934a | 5323 | |
c2c087e6 | 5324 | fstat(fd, &stb); |
503975b9 | 5325 | dd = xcalloc(sizeof(*dd), 1); |
c2c087e6 DW |
5326 | dd->major = major(stb.st_rdev); |
5327 | dd->minor = minor(stb.st_rdev); | |
503975b9 | 5328 | dd->devname = devname ? xstrdup(devname) : NULL; |
c2c087e6 | 5329 | dd->fd = fd; |
689c9bf3 | 5330 | dd->e = NULL; |
1a64be56 | 5331 | dd->action = DISK_ADD; |
c2c087e6 | 5332 | rv = imsm_read_serial(fd, devname, dd->serial); |
32ba9157 | 5333 | if (rv) { |
e7b84f9d | 5334 | pr_err("failed to retrieve scsi serial, aborting\n"); |
20bee0f8 PB |
5335 | if (dd->devname) |
5336 | free(dd->devname); | |
949c47a0 | 5337 | free(dd); |
0030e8d6 | 5338 | abort(); |
c2c087e6 | 5339 | } |
20bee0f8 PB |
5340 | if (super->hba && ((super->hba->type == SYS_DEV_NVME) || |
5341 | (super->hba->type == SYS_DEV_VMD))) { | |
5342 | int i; | |
5343 | char *devpath = diskfd_to_devpath(fd); | |
5344 | char controller_path[PATH_MAX]; | |
5345 | ||
5346 | if (!devpath) { | |
5347 | pr_err("failed to get devpath, aborting\n"); | |
5348 | if (dd->devname) | |
5349 | free(dd->devname); | |
5350 | free(dd); | |
5351 | return 1; | |
5352 | } | |
5353 | ||
5354 | snprintf(controller_path, PATH_MAX-1, "%s/device", devpath); | |
5355 | free(devpath); | |
5356 | ||
5357 | if (devpath_to_vendor(controller_path) == 0x8086) { | |
5358 | /* | |
5359 | * If Intel's NVMe drive has serial ended with | |
5360 | * "-A","-B","-1" or "-2" it means that this is "x8" | |
5361 | * device (double drive on single PCIe card). | |
5362 | * User should be warned about potential data loss. | |
5363 | */ | |
5364 | for (i = MAX_RAID_SERIAL_LEN-1; i > 0; i--) { | |
5365 | /* Skip empty character at the end */ | |
5366 | if (dd->serial[i] == 0) | |
5367 | continue; | |
5368 | ||
5369 | if (((dd->serial[i] == 'A') || | |
5370 | (dd->serial[i] == 'B') || | |
5371 | (dd->serial[i] == '1') || | |
5372 | (dd->serial[i] == '2')) && | |
5373 | (dd->serial[i-1] == '-')) | |
5374 | pr_err("\tThe action you are about to take may put your data at risk.\n" | |
5375 | "\tPlease note that x8 devices may consist of two separate x4 devices " | |
5376 | "located on a single PCIe port.\n" | |
5377 | "\tRAID 0 is the only supported configuration for this type of x8 device.\n"); | |
5378 | break; | |
5379 | } | |
5380 | } | |
5381 | } | |
c2c087e6 | 5382 | |
c2c087e6 | 5383 | get_dev_size(fd, NULL, &size); |
fa7bb6f8 PB |
5384 | get_dev_sector_size(fd, NULL, &member_sector_size); |
5385 | ||
5386 | if (super->sector_size == 0) { | |
5387 | /* this a first device, so sector_size is not set yet */ | |
5388 | super->sector_size = member_sector_size; | |
5389 | } else if (member_sector_size != super->sector_size) { | |
5390 | pr_err("Mixing between different sector size is forbidden, aborting...\n"); | |
5391 | if (dd->devname) | |
5392 | free(dd->devname); | |
5393 | free(dd); | |
5394 | return 1; | |
5395 | } | |
5396 | ||
71e5411e | 5397 | /* clear migr_rec when adding disk to container */ |
de44e46f PB |
5398 | memset(super->migr_rec_buf, 0, MIGR_REC_BUF_SECTORS*super->sector_size); |
5399 | if (lseek64(fd, size - MIGR_REC_SECTOR_POSITION*super->sector_size, | |
5400 | SEEK_SET) >= 0) { | |
71e5411e | 5401 | if (write(fd, super->migr_rec_buf, |
de44e46f PB |
5402 | MIGR_REC_BUF_SECTORS*super->sector_size) != |
5403 | MIGR_REC_BUF_SECTORS*super->sector_size) | |
71e5411e PB |
5404 | perror("Write migr_rec failed"); |
5405 | } | |
5406 | ||
c2c087e6 | 5407 | size /= 512; |
1f24f035 | 5408 | serialcpy(dd->disk.serial, dd->serial); |
5551b113 CA |
5409 | set_total_blocks(&dd->disk, size); |
5410 | if (__le32_to_cpu(dd->disk.total_blocks_hi) > 0) { | |
5411 | struct imsm_super *mpb = super->anchor; | |
5412 | mpb->attributes |= MPB_ATTRIB_2TB_DISK; | |
5413 | } | |
a8619d23 | 5414 | mark_spare(dd); |
c2c087e6 | 5415 | if (sysfs_disk_to_scsi_id(fd, &id) == 0) |
b9f594fe | 5416 | dd->disk.scsi_id = __cpu_to_le32(id); |
c2c087e6 | 5417 | else |
b9f594fe | 5418 | dd->disk.scsi_id = __cpu_to_le32(0); |
43dad3d6 DW |
5419 | |
5420 | if (st->update_tail) { | |
1a64be56 LM |
5421 | dd->next = super->disk_mgmt_list; |
5422 | super->disk_mgmt_list = dd; | |
43dad3d6 DW |
5423 | } else { |
5424 | dd->next = super->disks; | |
5425 | super->disks = dd; | |
ceaf0ee1 | 5426 | super->updates_pending++; |
43dad3d6 | 5427 | } |
f20c3968 DW |
5428 | |
5429 | return 0; | |
cdddbdbc DW |
5430 | } |
5431 | ||
1a64be56 LM |
5432 | static int remove_from_super_imsm(struct supertype *st, mdu_disk_info_t *dk) |
5433 | { | |
5434 | struct intel_super *super = st->sb; | |
5435 | struct dl *dd; | |
5436 | ||
5437 | /* remove from super works only in mdmon - for communication | |
5438 | * manager - monitor. Check if communication memory buffer | |
5439 | * is prepared. | |
5440 | */ | |
5441 | if (!st->update_tail) { | |
1ade5cc1 | 5442 | pr_err("shall be used in mdmon context only\n"); |
1a64be56 LM |
5443 | return 1; |
5444 | } | |
503975b9 | 5445 | dd = xcalloc(1, sizeof(*dd)); |
1a64be56 LM |
5446 | dd->major = dk->major; |
5447 | dd->minor = dk->minor; | |
1a64be56 | 5448 | dd->fd = -1; |
a8619d23 | 5449 | mark_spare(dd); |
1a64be56 LM |
5450 | dd->action = DISK_REMOVE; |
5451 | ||
5452 | dd->next = super->disk_mgmt_list; | |
5453 | super->disk_mgmt_list = dd; | |
5454 | ||
1a64be56 LM |
5455 | return 0; |
5456 | } | |
5457 | ||
f796af5d DW |
5458 | static int store_imsm_mpb(int fd, struct imsm_super *mpb); |
5459 | ||
5460 | static union { | |
f36a9ecd | 5461 | char buf[MAX_SECTOR_SIZE]; |
f796af5d | 5462 | struct imsm_super anchor; |
f36a9ecd | 5463 | } spare_record __attribute__ ((aligned(MAX_SECTOR_SIZE))); |
c2c087e6 | 5464 | |
d23fe947 DW |
5465 | /* spare records have their own family number and do not have any defined raid |
5466 | * devices | |
5467 | */ | |
5468 | static int write_super_imsm_spares(struct intel_super *super, int doclose) | |
5469 | { | |
d23fe947 | 5470 | struct imsm_super *mpb = super->anchor; |
f796af5d | 5471 | struct imsm_super *spare = &spare_record.anchor; |
d23fe947 DW |
5472 | __u32 sum; |
5473 | struct dl *d; | |
5474 | ||
68641cdb JS |
5475 | spare->mpb_size = __cpu_to_le32(sizeof(struct imsm_super)); |
5476 | spare->generation_num = __cpu_to_le32(1UL); | |
f796af5d | 5477 | spare->attributes = MPB_ATTRIB_CHECKSUM_VERIFY; |
68641cdb JS |
5478 | spare->num_disks = 1; |
5479 | spare->num_raid_devs = 0; | |
5480 | spare->cache_size = mpb->cache_size; | |
5481 | spare->pwr_cycle_count = __cpu_to_le32(1); | |
f796af5d DW |
5482 | |
5483 | snprintf((char *) spare->sig, MAX_SIGNATURE_LENGTH, | |
5484 | MPB_SIGNATURE MPB_VERSION_RAID0); | |
d23fe947 DW |
5485 | |
5486 | for (d = super->disks; d; d = d->next) { | |
8796fdc4 | 5487 | if (d->index != -1) |
d23fe947 DW |
5488 | continue; |
5489 | ||
f796af5d | 5490 | spare->disk[0] = d->disk; |
027c374f CA |
5491 | if (__le32_to_cpu(d->disk.total_blocks_hi) > 0) |
5492 | spare->attributes |= MPB_ATTRIB_2TB_DISK; | |
5493 | ||
f36a9ecd PB |
5494 | if (super->sector_size == 4096) |
5495 | convert_to_4k_imsm_disk(&spare->disk[0]); | |
5496 | ||
f796af5d DW |
5497 | sum = __gen_imsm_checksum(spare); |
5498 | spare->family_num = __cpu_to_le32(sum); | |
5499 | spare->orig_family_num = 0; | |
5500 | sum = __gen_imsm_checksum(spare); | |
5501 | spare->check_sum = __cpu_to_le32(sum); | |
d23fe947 | 5502 | |
f796af5d | 5503 | if (store_imsm_mpb(d->fd, spare)) { |
1ade5cc1 N |
5504 | pr_err("failed for device %d:%d %s\n", |
5505 | d->major, d->minor, strerror(errno)); | |
e74255d9 | 5506 | return 1; |
d23fe947 DW |
5507 | } |
5508 | if (doclose) { | |
5509 | close(d->fd); | |
5510 | d->fd = -1; | |
5511 | } | |
5512 | } | |
5513 | ||
e74255d9 | 5514 | return 0; |
d23fe947 DW |
5515 | } |
5516 | ||
36988a3d | 5517 | static int write_super_imsm(struct supertype *st, int doclose) |
cdddbdbc | 5518 | { |
36988a3d | 5519 | struct intel_super *super = st->sb; |
f36a9ecd | 5520 | unsigned int sector_size = super->sector_size; |
949c47a0 | 5521 | struct imsm_super *mpb = super->anchor; |
c2c087e6 DW |
5522 | struct dl *d; |
5523 | __u32 generation; | |
5524 | __u32 sum; | |
d23fe947 | 5525 | int spares = 0; |
949c47a0 | 5526 | int i; |
a48ac0a8 | 5527 | __u32 mpb_size = sizeof(struct imsm_super) - sizeof(struct imsm_disk); |
36988a3d | 5528 | int num_disks = 0; |
146c6260 | 5529 | int clear_migration_record = 1; |
cdddbdbc | 5530 | |
c2c087e6 DW |
5531 | /* 'generation' is incremented everytime the metadata is written */ |
5532 | generation = __le32_to_cpu(mpb->generation_num); | |
5533 | generation++; | |
5534 | mpb->generation_num = __cpu_to_le32(generation); | |
5535 | ||
148acb7b DW |
5536 | /* fix up cases where previous mdadm releases failed to set |
5537 | * orig_family_num | |
5538 | */ | |
5539 | if (mpb->orig_family_num == 0) | |
5540 | mpb->orig_family_num = mpb->family_num; | |
5541 | ||
d23fe947 | 5542 | for (d = super->disks; d; d = d->next) { |
8796fdc4 | 5543 | if (d->index == -1) |
d23fe947 | 5544 | spares++; |
36988a3d | 5545 | else { |
d23fe947 | 5546 | mpb->disk[d->index] = d->disk; |
36988a3d AK |
5547 | num_disks++; |
5548 | } | |
d23fe947 | 5549 | } |
36988a3d | 5550 | for (d = super->missing; d; d = d->next) { |
47ee5a45 | 5551 | mpb->disk[d->index] = d->disk; |
36988a3d AK |
5552 | num_disks++; |
5553 | } | |
5554 | mpb->num_disks = num_disks; | |
5555 | mpb_size += sizeof(struct imsm_disk) * mpb->num_disks; | |
b9f594fe | 5556 | |
949c47a0 DW |
5557 | for (i = 0; i < mpb->num_raid_devs; i++) { |
5558 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
36988a3d AK |
5559 | struct imsm_dev *dev2 = get_imsm_dev(super, i); |
5560 | if (dev && dev2) { | |
5561 | imsm_copy_dev(dev, dev2); | |
5562 | mpb_size += sizeof_imsm_dev(dev, 0); | |
5563 | } | |
146c6260 AK |
5564 | if (is_gen_migration(dev2)) |
5565 | clear_migration_record = 0; | |
949c47a0 | 5566 | } |
a48ac0a8 DW |
5567 | mpb_size += __le32_to_cpu(mpb->bbm_log_size); |
5568 | mpb->mpb_size = __cpu_to_le32(mpb_size); | |
949c47a0 | 5569 | |
c2c087e6 | 5570 | /* recalculate checksum */ |
949c47a0 | 5571 | sum = __gen_imsm_checksum(mpb); |
c2c087e6 DW |
5572 | mpb->check_sum = __cpu_to_le32(sum); |
5573 | ||
51d83f5d AK |
5574 | if (super->clean_migration_record_by_mdmon) { |
5575 | clear_migration_record = 1; | |
5576 | super->clean_migration_record_by_mdmon = 0; | |
5577 | } | |
146c6260 | 5578 | if (clear_migration_record) |
de44e46f PB |
5579 | memset(super->migr_rec_buf, 0, |
5580 | MIGR_REC_BUF_SECTORS*sector_size); | |
146c6260 | 5581 | |
f36a9ecd PB |
5582 | if (sector_size == 4096) |
5583 | convert_to_4k(super); | |
5584 | ||
d23fe947 | 5585 | /* write the mpb for disks that compose raid devices */ |
c2c087e6 | 5586 | for (d = super->disks; d ; d = d->next) { |
86c54047 | 5587 | if (d->index < 0 || is_failed(&d->disk)) |
d23fe947 | 5588 | continue; |
30602f53 | 5589 | |
146c6260 AK |
5590 | if (clear_migration_record) { |
5591 | unsigned long long dsize; | |
5592 | ||
5593 | get_dev_size(d->fd, NULL, &dsize); | |
de44e46f PB |
5594 | if (lseek64(d->fd, dsize - sector_size, |
5595 | SEEK_SET) >= 0) { | |
17a4eaf9 | 5596 | if (write(d->fd, super->migr_rec_buf, |
de44e46f PB |
5597 | MIGR_REC_BUF_SECTORS*sector_size) != |
5598 | MIGR_REC_BUF_SECTORS*sector_size) | |
9e2d750d | 5599 | perror("Write migr_rec failed"); |
146c6260 AK |
5600 | } |
5601 | } | |
51d83f5d AK |
5602 | |
5603 | if (store_imsm_mpb(d->fd, mpb)) | |
5604 | fprintf(stderr, | |
1ade5cc1 N |
5605 | "failed for device %d:%d (fd: %d)%s\n", |
5606 | d->major, d->minor, | |
51d83f5d AK |
5607 | d->fd, strerror(errno)); |
5608 | ||
c2c087e6 DW |
5609 | if (doclose) { |
5610 | close(d->fd); | |
5611 | d->fd = -1; | |
5612 | } | |
5613 | } | |
5614 | ||
d23fe947 DW |
5615 | if (spares) |
5616 | return write_super_imsm_spares(super, doclose); | |
5617 | ||
e74255d9 | 5618 | return 0; |
c2c087e6 DW |
5619 | } |
5620 | ||
9b1fb677 | 5621 | static int create_array(struct supertype *st, int dev_idx) |
43dad3d6 DW |
5622 | { |
5623 | size_t len; | |
5624 | struct imsm_update_create_array *u; | |
5625 | struct intel_super *super = st->sb; | |
9b1fb677 | 5626 | struct imsm_dev *dev = get_imsm_dev(super, dev_idx); |
238c0a71 | 5627 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
54c2c1ea DW |
5628 | struct disk_info *inf; |
5629 | struct imsm_disk *disk; | |
5630 | int i; | |
43dad3d6 | 5631 | |
54c2c1ea DW |
5632 | len = sizeof(*u) - sizeof(*dev) + sizeof_imsm_dev(dev, 0) + |
5633 | sizeof(*inf) * map->num_members; | |
503975b9 | 5634 | u = xmalloc(len); |
43dad3d6 | 5635 | u->type = update_create_array; |
9b1fb677 | 5636 | u->dev_idx = dev_idx; |
43dad3d6 | 5637 | imsm_copy_dev(&u->dev, dev); |
54c2c1ea DW |
5638 | inf = get_disk_info(u); |
5639 | for (i = 0; i < map->num_members; i++) { | |
238c0a71 | 5640 | int idx = get_imsm_disk_idx(dev, i, MAP_X); |
9b1fb677 | 5641 | |
54c2c1ea | 5642 | disk = get_imsm_disk(super, idx); |
1ca5c8e0 N |
5643 | if (!disk) |
5644 | disk = get_imsm_missing(super, idx); | |
54c2c1ea DW |
5645 | serialcpy(inf[i].serial, disk->serial); |
5646 | } | |
43dad3d6 DW |
5647 | append_metadata_update(st, u, len); |
5648 | ||
5649 | return 0; | |
5650 | } | |
5651 | ||
1a64be56 | 5652 | static int mgmt_disk(struct supertype *st) |
43dad3d6 DW |
5653 | { |
5654 | struct intel_super *super = st->sb; | |
5655 | size_t len; | |
1a64be56 | 5656 | struct imsm_update_add_remove_disk *u; |
43dad3d6 | 5657 | |
1a64be56 | 5658 | if (!super->disk_mgmt_list) |
43dad3d6 DW |
5659 | return 0; |
5660 | ||
5661 | len = sizeof(*u); | |
503975b9 | 5662 | u = xmalloc(len); |
1a64be56 | 5663 | u->type = update_add_remove_disk; |
43dad3d6 DW |
5664 | append_metadata_update(st, u, len); |
5665 | ||
5666 | return 0; | |
5667 | } | |
5668 | ||
c2c087e6 DW |
5669 | static int write_init_super_imsm(struct supertype *st) |
5670 | { | |
9b1fb677 DW |
5671 | struct intel_super *super = st->sb; |
5672 | int current_vol = super->current_vol; | |
5673 | ||
5674 | /* we are done with current_vol reset it to point st at the container */ | |
5675 | super->current_vol = -1; | |
5676 | ||
8273f55e | 5677 | if (st->update_tail) { |
43dad3d6 DW |
5678 | /* queue the recently created array / added disk |
5679 | * as a metadata update */ | |
43dad3d6 | 5680 | int rv; |
8273f55e | 5681 | |
43dad3d6 | 5682 | /* determine if we are creating a volume or adding a disk */ |
9b1fb677 | 5683 | if (current_vol < 0) { |
1a64be56 LM |
5684 | /* in the mgmt (add/remove) disk case we are running |
5685 | * in mdmon context, so don't close fd's | |
43dad3d6 | 5686 | */ |
1a64be56 | 5687 | return mgmt_disk(st); |
43dad3d6 | 5688 | } else |
9b1fb677 | 5689 | rv = create_array(st, current_vol); |
8273f55e | 5690 | |
43dad3d6 | 5691 | return rv; |
d682f344 N |
5692 | } else { |
5693 | struct dl *d; | |
5694 | for (d = super->disks; d; d = d->next) | |
ba728be7 | 5695 | Kill(d->devname, NULL, 0, -1, 1); |
36988a3d | 5696 | return write_super_imsm(st, 1); |
d682f344 | 5697 | } |
cdddbdbc | 5698 | } |
0e600426 | 5699 | #endif |
cdddbdbc | 5700 | |
e683ca88 | 5701 | static int store_super_imsm(struct supertype *st, int fd) |
cdddbdbc | 5702 | { |
e683ca88 DW |
5703 | struct intel_super *super = st->sb; |
5704 | struct imsm_super *mpb = super ? super->anchor : NULL; | |
551c80c1 | 5705 | |
e683ca88 | 5706 | if (!mpb) |
ad97895e DW |
5707 | return 1; |
5708 | ||
1799c9e8 | 5709 | #ifndef MDASSEMBLE |
f36a9ecd PB |
5710 | if (super->sector_size == 4096) |
5711 | convert_to_4k(super); | |
e683ca88 | 5712 | return store_imsm_mpb(fd, mpb); |
1799c9e8 N |
5713 | #else |
5714 | return 1; | |
5715 | #endif | |
cdddbdbc DW |
5716 | } |
5717 | ||
0e600426 | 5718 | #ifndef MDASSEMBLE |
cdddbdbc DW |
5719 | static int validate_geometry_imsm_container(struct supertype *st, int level, |
5720 | int layout, int raiddisks, int chunk, | |
af4348dd N |
5721 | unsigned long long size, |
5722 | unsigned long long data_offset, | |
5723 | char *dev, | |
2c514b71 NB |
5724 | unsigned long long *freesize, |
5725 | int verbose) | |
cdddbdbc | 5726 | { |
c2c087e6 DW |
5727 | int fd; |
5728 | unsigned long long ldsize; | |
594dc1b8 | 5729 | struct intel_super *super; |
f2f5c343 | 5730 | int rv = 0; |
cdddbdbc | 5731 | |
c2c087e6 DW |
5732 | if (level != LEVEL_CONTAINER) |
5733 | return 0; | |
5734 | if (!dev) | |
5735 | return 1; | |
5736 | ||
5737 | fd = open(dev, O_RDONLY|O_EXCL, 0); | |
5738 | if (fd < 0) { | |
ba728be7 | 5739 | if (verbose > 0) |
e7b84f9d | 5740 | pr_err("imsm: Cannot open %s: %s\n", |
2c514b71 | 5741 | dev, strerror(errno)); |
c2c087e6 DW |
5742 | return 0; |
5743 | } | |
5744 | if (!get_dev_size(fd, dev, &ldsize)) { | |
5745 | close(fd); | |
5746 | return 0; | |
5747 | } | |
f2f5c343 LM |
5748 | |
5749 | /* capabilities retrieve could be possible | |
5750 | * note that there is no fd for the disks in array. | |
5751 | */ | |
5752 | super = alloc_super(); | |
8d67477f TM |
5753 | if (!super) { |
5754 | close(fd); | |
5755 | return 0; | |
5756 | } | |
fa7bb6f8 PB |
5757 | if (!get_dev_sector_size(fd, NULL, &super->sector_size)) { |
5758 | close(fd); | |
5759 | free_imsm(super); | |
5760 | return 0; | |
5761 | } | |
5762 | ||
ba728be7 | 5763 | rv = find_intel_hba_capability(fd, super, verbose > 0 ? dev : NULL); |
f2f5c343 LM |
5764 | if (rv != 0) { |
5765 | #if DEBUG | |
5766 | char str[256]; | |
5767 | fd2devname(fd, str); | |
1ade5cc1 | 5768 | dprintf("fd: %d %s orom: %p rv: %d raiddisk: %d\n", |
f2f5c343 LM |
5769 | fd, str, super->orom, rv, raiddisks); |
5770 | #endif | |
5771 | /* no orom/efi or non-intel hba of the disk */ | |
5772 | close(fd); | |
5773 | free_imsm(super); | |
5774 | return 0; | |
5775 | } | |
c2c087e6 | 5776 | close(fd); |
9126b9a8 CA |
5777 | if (super->orom) { |
5778 | if (raiddisks > super->orom->tds) { | |
5779 | if (verbose) | |
7a862a02 | 5780 | pr_err("%d exceeds maximum number of platform supported disks: %d\n", |
9126b9a8 CA |
5781 | raiddisks, super->orom->tds); |
5782 | free_imsm(super); | |
5783 | return 0; | |
5784 | } | |
5785 | if ((super->orom->attr & IMSM_OROM_ATTR_2TB_DISK) == 0 && | |
5786 | (ldsize >> 9) >> 32 > 0) { | |
5787 | if (verbose) | |
e7b84f9d | 5788 | pr_err("%s exceeds maximum platform supported size\n", dev); |
9126b9a8 CA |
5789 | free_imsm(super); |
5790 | return 0; | |
5791 | } | |
f2f5c343 | 5792 | } |
c2c087e6 | 5793 | |
af4348dd | 5794 | *freesize = avail_size_imsm(st, ldsize >> 9, data_offset); |
f2f5c343 | 5795 | free_imsm(super); |
c2c087e6 DW |
5796 | |
5797 | return 1; | |
cdddbdbc DW |
5798 | } |
5799 | ||
0dcecb2e DW |
5800 | static unsigned long long find_size(struct extent *e, int *idx, int num_extents) |
5801 | { | |
5802 | const unsigned long long base_start = e[*idx].start; | |
5803 | unsigned long long end = base_start + e[*idx].size; | |
5804 | int i; | |
5805 | ||
5806 | if (base_start == end) | |
5807 | return 0; | |
5808 | ||
5809 | *idx = *idx + 1; | |
5810 | for (i = *idx; i < num_extents; i++) { | |
5811 | /* extend overlapping extents */ | |
5812 | if (e[i].start >= base_start && | |
5813 | e[i].start <= end) { | |
5814 | if (e[i].size == 0) | |
5815 | return 0; | |
5816 | if (e[i].start + e[i].size > end) | |
5817 | end = e[i].start + e[i].size; | |
5818 | } else if (e[i].start > end) { | |
5819 | *idx = i; | |
5820 | break; | |
5821 | } | |
5822 | } | |
5823 | ||
5824 | return end - base_start; | |
5825 | } | |
5826 | ||
5827 | static unsigned long long merge_extents(struct intel_super *super, int sum_extents) | |
5828 | { | |
5829 | /* build a composite disk with all known extents and generate a new | |
5830 | * 'maxsize' given the "all disks in an array must share a common start | |
5831 | * offset" constraint | |
5832 | */ | |
503975b9 | 5833 | struct extent *e = xcalloc(sum_extents, sizeof(*e)); |
0dcecb2e DW |
5834 | struct dl *dl; |
5835 | int i, j; | |
5836 | int start_extent; | |
5837 | unsigned long long pos; | |
b9d77223 | 5838 | unsigned long long start = 0; |
0dcecb2e DW |
5839 | unsigned long long maxsize; |
5840 | unsigned long reserve; | |
5841 | ||
0dcecb2e DW |
5842 | /* coalesce and sort all extents. also, check to see if we need to |
5843 | * reserve space between member arrays | |
5844 | */ | |
5845 | j = 0; | |
5846 | for (dl = super->disks; dl; dl = dl->next) { | |
5847 | if (!dl->e) | |
5848 | continue; | |
5849 | for (i = 0; i < dl->extent_cnt; i++) | |
5850 | e[j++] = dl->e[i]; | |
5851 | } | |
5852 | qsort(e, sum_extents, sizeof(*e), cmp_extent); | |
5853 | ||
5854 | /* merge extents */ | |
5855 | i = 0; | |
5856 | j = 0; | |
5857 | while (i < sum_extents) { | |
5858 | e[j].start = e[i].start; | |
5859 | e[j].size = find_size(e, &i, sum_extents); | |
5860 | j++; | |
5861 | if (e[j-1].size == 0) | |
5862 | break; | |
5863 | } | |
5864 | ||
5865 | pos = 0; | |
5866 | maxsize = 0; | |
5867 | start_extent = 0; | |
5868 | i = 0; | |
5869 | do { | |
5870 | unsigned long long esize; | |
5871 | ||
5872 | esize = e[i].start - pos; | |
5873 | if (esize >= maxsize) { | |
5874 | maxsize = esize; | |
5875 | start = pos; | |
5876 | start_extent = i; | |
5877 | } | |
5878 | pos = e[i].start + e[i].size; | |
5879 | i++; | |
5880 | } while (e[i-1].size); | |
5881 | free(e); | |
5882 | ||
a7dd165b DW |
5883 | if (maxsize == 0) |
5884 | return 0; | |
5885 | ||
5886 | /* FIXME assumes volume at offset 0 is the first volume in a | |
5887 | * container | |
5888 | */ | |
0dcecb2e DW |
5889 | if (start_extent > 0) |
5890 | reserve = IMSM_RESERVED_SECTORS; /* gap between raid regions */ | |
5891 | else | |
5892 | reserve = 0; | |
5893 | ||
5894 | if (maxsize < reserve) | |
a7dd165b | 5895 | return 0; |
0dcecb2e | 5896 | |
5551b113 | 5897 | super->create_offset = ~((unsigned long long) 0); |
0dcecb2e | 5898 | if (start + reserve > super->create_offset) |
a7dd165b | 5899 | return 0; /* start overflows create_offset */ |
0dcecb2e DW |
5900 | super->create_offset = start + reserve; |
5901 | ||
5902 | return maxsize - reserve; | |
5903 | } | |
5904 | ||
88c32bb1 DW |
5905 | static int is_raid_level_supported(const struct imsm_orom *orom, int level, int raiddisks) |
5906 | { | |
5907 | if (level < 0 || level == 6 || level == 4) | |
5908 | return 0; | |
5909 | ||
5910 | /* if we have an orom prevent invalid raid levels */ | |
5911 | if (orom) | |
5912 | switch (level) { | |
5913 | case 0: return imsm_orom_has_raid0(orom); | |
5914 | case 1: | |
5915 | if (raiddisks > 2) | |
5916 | return imsm_orom_has_raid1e(orom); | |
1c556e92 DW |
5917 | return imsm_orom_has_raid1(orom) && raiddisks == 2; |
5918 | case 10: return imsm_orom_has_raid10(orom) && raiddisks == 4; | |
5919 | case 5: return imsm_orom_has_raid5(orom) && raiddisks > 2; | |
88c32bb1 DW |
5920 | } |
5921 | else | |
5922 | return 1; /* not on an Intel RAID platform so anything goes */ | |
5923 | ||
5924 | return 0; | |
5925 | } | |
5926 | ||
ca9de185 LM |
5927 | static int |
5928 | active_arrays_by_format(char *name, char* hba, struct md_list **devlist, | |
5929 | int dpa, int verbose) | |
5930 | { | |
5931 | struct mdstat_ent *mdstat = mdstat_read(0, 0); | |
594dc1b8 | 5932 | struct mdstat_ent *memb; |
ca9de185 LM |
5933 | int count = 0; |
5934 | int num = 0; | |
594dc1b8 | 5935 | struct md_list *dv; |
ca9de185 LM |
5936 | int found; |
5937 | ||
5938 | for (memb = mdstat ; memb ; memb = memb->next) { | |
5939 | if (memb->metadata_version && | |
5940 | (strncmp(memb->metadata_version, "external:", 9) == 0) && | |
5941 | (strcmp(&memb->metadata_version[9], name) == 0) && | |
5942 | !is_subarray(memb->metadata_version+9) && | |
5943 | memb->members) { | |
5944 | struct dev_member *dev = memb->members; | |
5945 | int fd = -1; | |
5946 | while(dev && (fd < 0)) { | |
503975b9 N |
5947 | char *path = xmalloc(strlen(dev->name) + strlen("/dev/") + 1); |
5948 | num = sprintf(path, "%s%s", "/dev/", dev->name); | |
5949 | if (num > 0) | |
5950 | fd = open(path, O_RDONLY, 0); | |
089f9d79 | 5951 | if (num <= 0 || fd < 0) { |
676e87a8 | 5952 | pr_vrb("Cannot open %s: %s\n", |
503975b9 | 5953 | dev->name, strerror(errno)); |
ca9de185 | 5954 | } |
503975b9 | 5955 | free(path); |
ca9de185 LM |
5956 | dev = dev->next; |
5957 | } | |
5958 | found = 0; | |
089f9d79 | 5959 | if (fd >= 0 && disk_attached_to_hba(fd, hba)) { |
ca9de185 LM |
5960 | struct mdstat_ent *vol; |
5961 | for (vol = mdstat ; vol ; vol = vol->next) { | |
089f9d79 | 5962 | if (vol->active > 0 && |
ca9de185 | 5963 | vol->metadata_version && |
9581efb1 | 5964 | is_container_member(vol, memb->devnm)) { |
ca9de185 LM |
5965 | found++; |
5966 | count++; | |
5967 | } | |
5968 | } | |
5969 | if (*devlist && (found < dpa)) { | |
503975b9 | 5970 | dv = xcalloc(1, sizeof(*dv)); |
9581efb1 N |
5971 | dv->devname = xmalloc(strlen(memb->devnm) + strlen("/dev/") + 1); |
5972 | sprintf(dv->devname, "%s%s", "/dev/", memb->devnm); | |
503975b9 N |
5973 | dv->found = found; |
5974 | dv->used = 0; | |
5975 | dv->next = *devlist; | |
5976 | *devlist = dv; | |
ca9de185 LM |
5977 | } |
5978 | } | |
5979 | if (fd >= 0) | |
5980 | close(fd); | |
5981 | } | |
5982 | } | |
5983 | free_mdstat(mdstat); | |
5984 | return count; | |
5985 | } | |
5986 | ||
5987 | #ifdef DEBUG_LOOP | |
5988 | static struct md_list* | |
5989 | get_loop_devices(void) | |
5990 | { | |
5991 | int i; | |
5992 | struct md_list *devlist = NULL; | |
594dc1b8 | 5993 | struct md_list *dv; |
ca9de185 LM |
5994 | |
5995 | for(i = 0; i < 12; i++) { | |
503975b9 N |
5996 | dv = xcalloc(1, sizeof(*dv)); |
5997 | dv->devname = xmalloc(40); | |
ca9de185 LM |
5998 | sprintf(dv->devname, "/dev/loop%d", i); |
5999 | dv->next = devlist; | |
6000 | devlist = dv; | |
6001 | } | |
6002 | return devlist; | |
6003 | } | |
6004 | #endif | |
6005 | ||
6006 | static struct md_list* | |
6007 | get_devices(const char *hba_path) | |
6008 | { | |
6009 | struct md_list *devlist = NULL; | |
594dc1b8 | 6010 | struct md_list *dv; |
ca9de185 LM |
6011 | struct dirent *ent; |
6012 | DIR *dir; | |
6013 | int err = 0; | |
6014 | ||
6015 | #if DEBUG_LOOP | |
6016 | devlist = get_loop_devices(); | |
6017 | return devlist; | |
6018 | #endif | |
6019 | /* scroll through /sys/dev/block looking for devices attached to | |
6020 | * this hba | |
6021 | */ | |
6022 | dir = opendir("/sys/dev/block"); | |
6023 | for (ent = dir ? readdir(dir) : NULL; ent; ent = readdir(dir)) { | |
6024 | int fd; | |
6025 | char buf[1024]; | |
6026 | int major, minor; | |
6027 | char *path = NULL; | |
6028 | if (sscanf(ent->d_name, "%d:%d", &major, &minor) != 2) | |
6029 | continue; | |
6030 | path = devt_to_devpath(makedev(major, minor)); | |
6031 | if (!path) | |
6032 | continue; | |
6033 | if (!path_attached_to_hba(path, hba_path)) { | |
6034 | free(path); | |
6035 | path = NULL; | |
6036 | continue; | |
6037 | } | |
6038 | free(path); | |
6039 | path = NULL; | |
6040 | fd = dev_open(ent->d_name, O_RDONLY); | |
6041 | if (fd >= 0) { | |
6042 | fd2devname(fd, buf); | |
6043 | close(fd); | |
6044 | } else { | |
e7b84f9d | 6045 | pr_err("cannot open device: %s\n", |
ca9de185 LM |
6046 | ent->d_name); |
6047 | continue; | |
6048 | } | |
6049 | ||
503975b9 N |
6050 | dv = xcalloc(1, sizeof(*dv)); |
6051 | dv->devname = xstrdup(buf); | |
ca9de185 LM |
6052 | dv->next = devlist; |
6053 | devlist = dv; | |
6054 | } | |
6055 | if (err) { | |
6056 | while(devlist) { | |
6057 | dv = devlist; | |
6058 | devlist = devlist->next; | |
6059 | free(dv->devname); | |
6060 | free(dv); | |
6061 | } | |
6062 | } | |
562aa102 | 6063 | closedir(dir); |
ca9de185 LM |
6064 | return devlist; |
6065 | } | |
6066 | ||
6067 | static int | |
6068 | count_volumes_list(struct md_list *devlist, char *homehost, | |
6069 | int verbose, int *found) | |
6070 | { | |
6071 | struct md_list *tmpdev; | |
6072 | int count = 0; | |
594dc1b8 | 6073 | struct supertype *st; |
ca9de185 LM |
6074 | |
6075 | /* first walk the list of devices to find a consistent set | |
6076 | * that match the criterea, if that is possible. | |
6077 | * We flag the ones we like with 'used'. | |
6078 | */ | |
6079 | *found = 0; | |
6080 | st = match_metadata_desc_imsm("imsm"); | |
6081 | if (st == NULL) { | |
676e87a8 | 6082 | pr_vrb("cannot allocate memory for imsm supertype\n"); |
ca9de185 LM |
6083 | return 0; |
6084 | } | |
6085 | ||
6086 | for (tmpdev = devlist; tmpdev; tmpdev = tmpdev->next) { | |
6087 | char *devname = tmpdev->devname; | |
6088 | struct stat stb; | |
6089 | struct supertype *tst; | |
6090 | int dfd; | |
6091 | if (tmpdev->used > 1) | |
6092 | continue; | |
6093 | tst = dup_super(st); | |
6094 | if (tst == NULL) { | |
676e87a8 | 6095 | pr_vrb("cannot allocate memory for imsm supertype\n"); |
ca9de185 LM |
6096 | goto err_1; |
6097 | } | |
6098 | tmpdev->container = 0; | |
6099 | dfd = dev_open(devname, O_RDONLY|O_EXCL); | |
6100 | if (dfd < 0) { | |
1ade5cc1 | 6101 | dprintf("cannot open device %s: %s\n", |
ca9de185 LM |
6102 | devname, strerror(errno)); |
6103 | tmpdev->used = 2; | |
6104 | } else if (fstat(dfd, &stb)< 0) { | |
6105 | /* Impossible! */ | |
1ade5cc1 | 6106 | dprintf("fstat failed for %s: %s\n", |
ca9de185 LM |
6107 | devname, strerror(errno)); |
6108 | tmpdev->used = 2; | |
6109 | } else if ((stb.st_mode & S_IFMT) != S_IFBLK) { | |
1ade5cc1 | 6110 | dprintf("%s is not a block device.\n", |
ca9de185 LM |
6111 | devname); |
6112 | tmpdev->used = 2; | |
6113 | } else if (must_be_container(dfd)) { | |
6114 | struct supertype *cst; | |
6115 | cst = super_by_fd(dfd, NULL); | |
6116 | if (cst == NULL) { | |
1ade5cc1 | 6117 | dprintf("cannot recognize container type %s\n", |
ca9de185 LM |
6118 | devname); |
6119 | tmpdev->used = 2; | |
6120 | } else if (tst->ss != st->ss) { | |
1ade5cc1 | 6121 | dprintf("non-imsm container - ignore it: %s\n", |
ca9de185 LM |
6122 | devname); |
6123 | tmpdev->used = 2; | |
6124 | } else if (!tst->ss->load_container || | |
6125 | tst->ss->load_container(tst, dfd, NULL)) | |
6126 | tmpdev->used = 2; | |
6127 | else { | |
6128 | tmpdev->container = 1; | |
6129 | } | |
6130 | if (cst) | |
6131 | cst->ss->free_super(cst); | |
6132 | } else { | |
6133 | tmpdev->st_rdev = stb.st_rdev; | |
6134 | if (tst->ss->load_super(tst,dfd, NULL)) { | |
1ade5cc1 | 6135 | dprintf("no RAID superblock on %s\n", |
ca9de185 LM |
6136 | devname); |
6137 | tmpdev->used = 2; | |
6138 | } else if (tst->ss->compare_super == NULL) { | |
1ade5cc1 | 6139 | dprintf("Cannot assemble %s metadata on %s\n", |
ca9de185 LM |
6140 | tst->ss->name, devname); |
6141 | tmpdev->used = 2; | |
6142 | } | |
6143 | } | |
6144 | if (dfd >= 0) | |
6145 | close(dfd); | |
6146 | if (tmpdev->used == 2 || tmpdev->used == 4) { | |
6147 | /* Ignore unrecognised devices during auto-assembly */ | |
6148 | goto loop; | |
6149 | } | |
6150 | else { | |
6151 | struct mdinfo info; | |
6152 | tst->ss->getinfo_super(tst, &info, NULL); | |
6153 | ||
6154 | if (st->minor_version == -1) | |
6155 | st->minor_version = tst->minor_version; | |
6156 | ||
6157 | if (memcmp(info.uuid, uuid_zero, | |
6158 | sizeof(int[4])) == 0) { | |
6159 | /* this is a floating spare. It cannot define | |
6160 | * an array unless there are no more arrays of | |
6161 | * this type to be found. It can be included | |
6162 | * in an array of this type though. | |
6163 | */ | |
6164 | tmpdev->used = 3; | |
6165 | goto loop; | |
6166 | } | |
6167 | ||
6168 | if (st->ss != tst->ss || | |
6169 | st->minor_version != tst->minor_version || | |
6170 | st->ss->compare_super(st, tst) != 0) { | |
6171 | /* Some mismatch. If exactly one array matches this host, | |
6172 | * we can resolve on that one. | |
6173 | * Or, if we are auto assembling, we just ignore the second | |
6174 | * for now. | |
6175 | */ | |
1ade5cc1 | 6176 | dprintf("superblock on %s doesn't match others - assembly aborted\n", |
ca9de185 LM |
6177 | devname); |
6178 | goto loop; | |
6179 | } | |
6180 | tmpdev->used = 1; | |
6181 | *found = 1; | |
6182 | dprintf("found: devname: %s\n", devname); | |
6183 | } | |
6184 | loop: | |
6185 | if (tst) | |
6186 | tst->ss->free_super(tst); | |
6187 | } | |
6188 | if (*found != 0) { | |
6189 | int err; | |
6190 | if ((err = load_super_imsm_all(st, -1, &st->sb, NULL, devlist, 0)) == 0) { | |
6191 | struct mdinfo *iter, *head = st->ss->container_content(st, NULL); | |
6192 | for (iter = head; iter; iter = iter->next) { | |
6193 | dprintf("content->text_version: %s vol\n", | |
6194 | iter->text_version); | |
6195 | if (iter->array.state & (1<<MD_SB_BLOCK_VOLUME)) { | |
6196 | /* do not assemble arrays with unsupported | |
6197 | configurations */ | |
1ade5cc1 | 6198 | dprintf("Cannot activate member %s.\n", |
ca9de185 LM |
6199 | iter->text_version); |
6200 | } else | |
6201 | count++; | |
6202 | } | |
6203 | sysfs_free(head); | |
6204 | ||
6205 | } else { | |
1ade5cc1 | 6206 | dprintf("No valid super block on device list: err: %d %p\n", |
ca9de185 LM |
6207 | err, st->sb); |
6208 | } | |
6209 | } else { | |
1ade5cc1 | 6210 | dprintf("no more devices to examine\n"); |
ca9de185 LM |
6211 | } |
6212 | ||
6213 | for (tmpdev = devlist; tmpdev; tmpdev = tmpdev->next) { | |
089f9d79 | 6214 | if (tmpdev->used == 1 && tmpdev->found) { |
ca9de185 LM |
6215 | if (count) { |
6216 | if (count < tmpdev->found) | |
6217 | count = 0; | |
6218 | else | |
6219 | count -= tmpdev->found; | |
6220 | } | |
6221 | } | |
6222 | if (tmpdev->used == 1) | |
6223 | tmpdev->used = 4; | |
6224 | } | |
6225 | err_1: | |
6226 | if (st) | |
6227 | st->ss->free_super(st); | |
6228 | return count; | |
6229 | } | |
6230 | ||
ca9de185 | 6231 | static int |
72a45777 | 6232 | count_volumes(struct intel_hba *hba, int dpa, int verbose) |
ca9de185 | 6233 | { |
72a45777 | 6234 | struct sys_dev *idev, *intel_devices = find_intel_devices(); |
ca9de185 | 6235 | int count = 0; |
72a45777 PB |
6236 | const struct orom_entry *entry; |
6237 | struct devid_list *dv, *devid_list; | |
ca9de185 | 6238 | |
72a45777 | 6239 | if (!hba || !hba->path) |
ca9de185 LM |
6240 | return 0; |
6241 | ||
72a45777 PB |
6242 | for (idev = intel_devices; idev; idev = idev->next) { |
6243 | if (strstr(idev->path, hba->path)) | |
6244 | break; | |
6245 | } | |
6246 | ||
6247 | if (!idev || !idev->dev_id) | |
ca9de185 | 6248 | return 0; |
72a45777 PB |
6249 | |
6250 | entry = get_orom_entry_by_device_id(idev->dev_id); | |
6251 | ||
6252 | if (!entry || !entry->devid_list) | |
6253 | return 0; | |
6254 | ||
6255 | devid_list = entry->devid_list; | |
6256 | for (dv = devid_list; dv; dv = dv->next) { | |
594dc1b8 | 6257 | struct md_list *devlist; |
72a45777 PB |
6258 | struct sys_dev *device = device_by_id(dv->devid); |
6259 | char *hba_path; | |
6260 | int found = 0; | |
6261 | ||
6262 | if (device) | |
6263 | hba_path = device->path; | |
6264 | else | |
6265 | return 0; | |
6266 | ||
6267 | devlist = get_devices(hba_path); | |
6268 | /* if no intel devices return zero volumes */ | |
6269 | if (devlist == NULL) | |
6270 | return 0; | |
6271 | ||
6272 | count += active_arrays_by_format("imsm", hba_path, &devlist, dpa, verbose); | |
6273 | dprintf("path: %s active arrays: %d\n", hba_path, count); | |
6274 | if (devlist == NULL) | |
6275 | return 0; | |
6276 | do { | |
6277 | found = 0; | |
6278 | count += count_volumes_list(devlist, | |
6279 | NULL, | |
6280 | verbose, | |
6281 | &found); | |
6282 | dprintf("found %d count: %d\n", found, count); | |
6283 | } while (found); | |
6284 | ||
6285 | dprintf("path: %s total number of volumes: %d\n", hba_path, count); | |
6286 | ||
6287 | while (devlist) { | |
6288 | struct md_list *dv = devlist; | |
6289 | devlist = devlist->next; | |
6290 | free(dv->devname); | |
6291 | free(dv); | |
6292 | } | |
ca9de185 LM |
6293 | } |
6294 | return count; | |
6295 | } | |
6296 | ||
cd9d1ac7 DW |
6297 | static int imsm_default_chunk(const struct imsm_orom *orom) |
6298 | { | |
6299 | /* up to 512 if the plaform supports it, otherwise the platform max. | |
6300 | * 128 if no platform detected | |
6301 | */ | |
6302 | int fs = max(7, orom ? fls(orom->sss) : 0); | |
6303 | ||
6304 | return min(512, (1 << fs)); | |
6305 | } | |
73408129 | 6306 | |
6592ce37 DW |
6307 | static int |
6308 | validate_geometry_imsm_orom(struct intel_super *super, int level, int layout, | |
2cc699af | 6309 | int raiddisks, int *chunk, unsigned long long size, int verbose) |
6592ce37 | 6310 | { |
660260d0 DW |
6311 | /* check/set platform and metadata limits/defaults */ |
6312 | if (super->orom && raiddisks > super->orom->dpa) { | |
676e87a8 | 6313 | pr_vrb("platform supports a maximum of %d disks per array\n", |
660260d0 | 6314 | super->orom->dpa); |
73408129 LM |
6315 | return 0; |
6316 | } | |
6317 | ||
5d500228 | 6318 | /* capabilities of OROM tested - copied from validate_geometry_imsm_volume */ |
660260d0 | 6319 | if (!is_raid_level_supported(super->orom, level, raiddisks)) { |
676e87a8 | 6320 | pr_vrb("platform does not support raid%d with %d disk%s\n", |
6592ce37 DW |
6321 | level, raiddisks, raiddisks > 1 ? "s" : ""); |
6322 | return 0; | |
6323 | } | |
cd9d1ac7 | 6324 | |
7ccc4cc4 | 6325 | if (*chunk == 0 || *chunk == UnSet) |
cd9d1ac7 DW |
6326 | *chunk = imsm_default_chunk(super->orom); |
6327 | ||
7ccc4cc4 | 6328 | if (super->orom && !imsm_orom_has_chunk(super->orom, *chunk)) { |
676e87a8 | 6329 | pr_vrb("platform does not support a chunk size of: %d\n", *chunk); |
cd9d1ac7 | 6330 | return 0; |
6592ce37 | 6331 | } |
cd9d1ac7 | 6332 | |
6592ce37 DW |
6333 | if (layout != imsm_level_to_layout(level)) { |
6334 | if (level == 5) | |
676e87a8 | 6335 | pr_vrb("imsm raid 5 only supports the left-asymmetric layout\n"); |
6592ce37 | 6336 | else if (level == 10) |
676e87a8 | 6337 | pr_vrb("imsm raid 10 only supports the n2 layout\n"); |
6592ce37 | 6338 | else |
676e87a8 | 6339 | pr_vrb("imsm unknown layout %#x for this raid level %d\n", |
6592ce37 DW |
6340 | layout, level); |
6341 | return 0; | |
6342 | } | |
2cc699af | 6343 | |
7ccc4cc4 | 6344 | if (super->orom && (super->orom->attr & IMSM_OROM_ATTR_2TB) == 0 && |
2cc699af | 6345 | (calc_array_size(level, raiddisks, layout, *chunk, size) >> 32) > 0) { |
676e87a8 | 6346 | pr_vrb("platform does not support a volume size over 2TB\n"); |
2cc699af CA |
6347 | return 0; |
6348 | } | |
614902f6 | 6349 | |
6592ce37 DW |
6350 | return 1; |
6351 | } | |
6352 | ||
1011e834 | 6353 | /* validate_geometry_imsm_volume - lifted from validate_geometry_ddf_bvd |
c2c087e6 DW |
6354 | * FIX ME add ahci details |
6355 | */ | |
8b353278 | 6356 | static int validate_geometry_imsm_volume(struct supertype *st, int level, |
c21e737b | 6357 | int layout, int raiddisks, int *chunk, |
af4348dd N |
6358 | unsigned long long size, |
6359 | unsigned long long data_offset, | |
6360 | char *dev, | |
2c514b71 NB |
6361 | unsigned long long *freesize, |
6362 | int verbose) | |
cdddbdbc | 6363 | { |
c2c087e6 DW |
6364 | struct stat stb; |
6365 | struct intel_super *super = st->sb; | |
b2916f25 | 6366 | struct imsm_super *mpb; |
c2c087e6 DW |
6367 | struct dl *dl; |
6368 | unsigned long long pos = 0; | |
6369 | unsigned long long maxsize; | |
6370 | struct extent *e; | |
6371 | int i; | |
cdddbdbc | 6372 | |
88c32bb1 DW |
6373 | /* We must have the container info already read in. */ |
6374 | if (!super) | |
c2c087e6 DW |
6375 | return 0; |
6376 | ||
b2916f25 JS |
6377 | mpb = super->anchor; |
6378 | ||
2cc699af | 6379 | if (!validate_geometry_imsm_orom(super, level, layout, raiddisks, chunk, size, verbose)) { |
7a862a02 | 6380 | pr_err("RAID gemetry validation failed. Cannot proceed with the action(s).\n"); |
c2c087e6 | 6381 | return 0; |
d54559f0 | 6382 | } |
c2c087e6 DW |
6383 | if (!dev) { |
6384 | /* General test: make sure there is space for | |
2da8544a DW |
6385 | * 'raiddisks' device extents of size 'size' at a given |
6386 | * offset | |
c2c087e6 | 6387 | */ |
e46273eb | 6388 | unsigned long long minsize = size; |
b7528a20 | 6389 | unsigned long long start_offset = MaxSector; |
c2c087e6 DW |
6390 | int dcnt = 0; |
6391 | if (minsize == 0) | |
6392 | minsize = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
6393 | for (dl = super->disks; dl ; dl = dl->next) { | |
6394 | int found = 0; | |
6395 | ||
bf5a934a | 6396 | pos = 0; |
c2c087e6 DW |
6397 | i = 0; |
6398 | e = get_extents(super, dl); | |
6399 | if (!e) continue; | |
6400 | do { | |
6401 | unsigned long long esize; | |
6402 | esize = e[i].start - pos; | |
6403 | if (esize >= minsize) | |
6404 | found = 1; | |
b7528a20 | 6405 | if (found && start_offset == MaxSector) { |
2da8544a DW |
6406 | start_offset = pos; |
6407 | break; | |
6408 | } else if (found && pos != start_offset) { | |
6409 | found = 0; | |
6410 | break; | |
6411 | } | |
c2c087e6 DW |
6412 | pos = e[i].start + e[i].size; |
6413 | i++; | |
6414 | } while (e[i-1].size); | |
6415 | if (found) | |
6416 | dcnt++; | |
6417 | free(e); | |
6418 | } | |
6419 | if (dcnt < raiddisks) { | |
2c514b71 | 6420 | if (verbose) |
7a862a02 | 6421 | pr_err("imsm: Not enough devices with space for this array (%d < %d)\n", |
2c514b71 | 6422 | dcnt, raiddisks); |
c2c087e6 DW |
6423 | return 0; |
6424 | } | |
6425 | return 1; | |
6426 | } | |
0dcecb2e | 6427 | |
c2c087e6 DW |
6428 | /* This device must be a member of the set */ |
6429 | if (stat(dev, &stb) < 0) | |
6430 | return 0; | |
6431 | if ((S_IFMT & stb.st_mode) != S_IFBLK) | |
6432 | return 0; | |
6433 | for (dl = super->disks ; dl ; dl = dl->next) { | |
f21e18ca N |
6434 | if (dl->major == (int)major(stb.st_rdev) && |
6435 | dl->minor == (int)minor(stb.st_rdev)) | |
c2c087e6 DW |
6436 | break; |
6437 | } | |
6438 | if (!dl) { | |
2c514b71 | 6439 | if (verbose) |
7a862a02 | 6440 | pr_err("%s is not in the same imsm set\n", dev); |
c2c087e6 | 6441 | return 0; |
a20d2ba5 DW |
6442 | } else if (super->orom && dl->index < 0 && mpb->num_raid_devs) { |
6443 | /* If a volume is present then the current creation attempt | |
6444 | * cannot incorporate new spares because the orom may not | |
6445 | * understand this configuration (all member disks must be | |
6446 | * members of each array in the container). | |
6447 | */ | |
7a862a02 N |
6448 | pr_err("%s is a spare and a volume is already defined for this container\n", dev); |
6449 | pr_err("The option-rom requires all member disks to be a member of all volumes\n"); | |
a20d2ba5 | 6450 | return 0; |
5fe62b94 WD |
6451 | } else if (super->orom && mpb->num_raid_devs > 0 && |
6452 | mpb->num_disks != raiddisks) { | |
7a862a02 | 6453 | pr_err("The option-rom requires all member disks to be a member of all volumes\n"); |
5fe62b94 | 6454 | return 0; |
c2c087e6 | 6455 | } |
0dcecb2e DW |
6456 | |
6457 | /* retrieve the largest free space block */ | |
c2c087e6 DW |
6458 | e = get_extents(super, dl); |
6459 | maxsize = 0; | |
6460 | i = 0; | |
0dcecb2e DW |
6461 | if (e) { |
6462 | do { | |
6463 | unsigned long long esize; | |
6464 | ||
6465 | esize = e[i].start - pos; | |
6466 | if (esize >= maxsize) | |
6467 | maxsize = esize; | |
6468 | pos = e[i].start + e[i].size; | |
6469 | i++; | |
6470 | } while (e[i-1].size); | |
6471 | dl->e = e; | |
6472 | dl->extent_cnt = i; | |
6473 | } else { | |
6474 | if (verbose) | |
e7b84f9d | 6475 | pr_err("unable to determine free space for: %s\n", |
0dcecb2e DW |
6476 | dev); |
6477 | return 0; | |
6478 | } | |
6479 | if (maxsize < size) { | |
6480 | if (verbose) | |
e7b84f9d | 6481 | pr_err("%s not enough space (%llu < %llu)\n", |
0dcecb2e DW |
6482 | dev, maxsize, size); |
6483 | return 0; | |
6484 | } | |
6485 | ||
6486 | /* count total number of extents for merge */ | |
6487 | i = 0; | |
6488 | for (dl = super->disks; dl; dl = dl->next) | |
6489 | if (dl->e) | |
6490 | i += dl->extent_cnt; | |
6491 | ||
6492 | maxsize = merge_extents(super, i); | |
3baa56ab LO |
6493 | |
6494 | if (!check_env("IMSM_NO_PLATFORM") && | |
6495 | mpb->num_raid_devs > 0 && size && size != maxsize) { | |
7a862a02 | 6496 | pr_err("attempting to create a second volume with size less then remaining space. Aborting...\n"); |
3baa56ab LO |
6497 | return 0; |
6498 | } | |
6499 | ||
a7dd165b | 6500 | if (maxsize < size || maxsize == 0) { |
b3071342 LD |
6501 | if (verbose) { |
6502 | if (maxsize == 0) | |
7a862a02 | 6503 | pr_err("no free space left on device. Aborting...\n"); |
b3071342 | 6504 | else |
7a862a02 | 6505 | pr_err("not enough space to create volume of given size (%llu < %llu). Aborting...\n", |
b3071342 LD |
6506 | maxsize, size); |
6507 | } | |
0dcecb2e | 6508 | return 0; |
0dcecb2e DW |
6509 | } |
6510 | ||
c2c087e6 DW |
6511 | *freesize = maxsize; |
6512 | ||
ca9de185 | 6513 | if (super->orom) { |
72a45777 | 6514 | int count = count_volumes(super->hba, |
ca9de185 LM |
6515 | super->orom->dpa, verbose); |
6516 | if (super->orom->vphba <= count) { | |
676e87a8 | 6517 | pr_vrb("platform does not support more than %d raid volumes.\n", |
ca9de185 LM |
6518 | super->orom->vphba); |
6519 | return 0; | |
6520 | } | |
6521 | } | |
c2c087e6 | 6522 | return 1; |
cdddbdbc DW |
6523 | } |
6524 | ||
13bcac90 | 6525 | static int imsm_get_free_size(struct supertype *st, int raiddisks, |
efb30e7f DW |
6526 | unsigned long long size, int chunk, |
6527 | unsigned long long *freesize) | |
6528 | { | |
6529 | struct intel_super *super = st->sb; | |
6530 | struct imsm_super *mpb = super->anchor; | |
6531 | struct dl *dl; | |
6532 | int i; | |
6533 | int extent_cnt; | |
6534 | struct extent *e; | |
6535 | unsigned long long maxsize; | |
6536 | unsigned long long minsize; | |
6537 | int cnt; | |
6538 | int used; | |
6539 | ||
6540 | /* find the largest common start free region of the possible disks */ | |
6541 | used = 0; | |
6542 | extent_cnt = 0; | |
6543 | cnt = 0; | |
6544 | for (dl = super->disks; dl; dl = dl->next) { | |
6545 | dl->raiddisk = -1; | |
6546 | ||
6547 | if (dl->index >= 0) | |
6548 | used++; | |
6549 | ||
6550 | /* don't activate new spares if we are orom constrained | |
6551 | * and there is already a volume active in the container | |
6552 | */ | |
6553 | if (super->orom && dl->index < 0 && mpb->num_raid_devs) | |
6554 | continue; | |
6555 | ||
6556 | e = get_extents(super, dl); | |
6557 | if (!e) | |
6558 | continue; | |
6559 | for (i = 1; e[i-1].size; i++) | |
6560 | ; | |
6561 | dl->e = e; | |
6562 | dl->extent_cnt = i; | |
6563 | extent_cnt += i; | |
6564 | cnt++; | |
6565 | } | |
6566 | ||
6567 | maxsize = merge_extents(super, extent_cnt); | |
6568 | minsize = size; | |
6569 | if (size == 0) | |
612e59d8 CA |
6570 | /* chunk is in K */ |
6571 | minsize = chunk * 2; | |
efb30e7f DW |
6572 | |
6573 | if (cnt < raiddisks || | |
6574 | (super->orom && used && used != raiddisks) || | |
a7dd165b DW |
6575 | maxsize < minsize || |
6576 | maxsize == 0) { | |
e7b84f9d | 6577 | pr_err("not enough devices with space to create array.\n"); |
efb30e7f DW |
6578 | return 0; /* No enough free spaces large enough */ |
6579 | } | |
6580 | ||
6581 | if (size == 0) { | |
6582 | size = maxsize; | |
6583 | if (chunk) { | |
612e59d8 CA |
6584 | size /= 2 * chunk; |
6585 | size *= 2 * chunk; | |
efb30e7f | 6586 | } |
f878b242 LM |
6587 | maxsize = size; |
6588 | } | |
6589 | if (!check_env("IMSM_NO_PLATFORM") && | |
6590 | mpb->num_raid_devs > 0 && size && size != maxsize) { | |
7a862a02 | 6591 | pr_err("attempting to create a second volume with size less then remaining space. Aborting...\n"); |
f878b242 | 6592 | return 0; |
efb30e7f | 6593 | } |
efb30e7f DW |
6594 | cnt = 0; |
6595 | for (dl = super->disks; dl; dl = dl->next) | |
6596 | if (dl->e) | |
6597 | dl->raiddisk = cnt++; | |
6598 | ||
6599 | *freesize = size; | |
6600 | ||
13bcac90 AK |
6601 | dprintf("imsm: imsm_get_free_size() returns : %llu\n", size); |
6602 | ||
efb30e7f DW |
6603 | return 1; |
6604 | } | |
6605 | ||
13bcac90 AK |
6606 | static int reserve_space(struct supertype *st, int raiddisks, |
6607 | unsigned long long size, int chunk, | |
6608 | unsigned long long *freesize) | |
6609 | { | |
6610 | struct intel_super *super = st->sb; | |
6611 | struct dl *dl; | |
6612 | int cnt; | |
6613 | int rv = 0; | |
6614 | ||
6615 | rv = imsm_get_free_size(st, raiddisks, size, chunk, freesize); | |
6616 | if (rv) { | |
6617 | cnt = 0; | |
6618 | for (dl = super->disks; dl; dl = dl->next) | |
6619 | if (dl->e) | |
6620 | dl->raiddisk = cnt++; | |
6621 | rv = 1; | |
6622 | } | |
6623 | ||
6624 | return rv; | |
6625 | } | |
6626 | ||
bf5a934a | 6627 | static int validate_geometry_imsm(struct supertype *st, int level, int layout, |
c21e737b | 6628 | int raiddisks, int *chunk, unsigned long long size, |
af4348dd | 6629 | unsigned long long data_offset, |
bf5a934a DW |
6630 | char *dev, unsigned long long *freesize, |
6631 | int verbose) | |
6632 | { | |
6633 | int fd, cfd; | |
6634 | struct mdinfo *sra; | |
20cbe8d2 | 6635 | int is_member = 0; |
bf5a934a | 6636 | |
d54559f0 LM |
6637 | /* load capability |
6638 | * if given unused devices create a container | |
bf5a934a DW |
6639 | * if given given devices in a container create a member volume |
6640 | */ | |
6641 | if (level == LEVEL_CONTAINER) { | |
6642 | /* Must be a fresh device to add to a container */ | |
6643 | return validate_geometry_imsm_container(st, level, layout, | |
c21e737b | 6644 | raiddisks, |
7ccc4cc4 | 6645 | *chunk, |
af4348dd | 6646 | size, data_offset, |
bf5a934a DW |
6647 | dev, freesize, |
6648 | verbose); | |
6649 | } | |
9587c373 | 6650 | |
8592f29d | 6651 | if (!dev) { |
e91a3bad | 6652 | if (st->sb) { |
ca9de185 | 6653 | struct intel_super *super = st->sb; |
e91a3bad | 6654 | if (!validate_geometry_imsm_orom(st->sb, level, layout, |
2cc699af | 6655 | raiddisks, chunk, size, |
e91a3bad LM |
6656 | verbose)) |
6657 | return 0; | |
efb30e7f DW |
6658 | /* we are being asked to automatically layout a |
6659 | * new volume based on the current contents of | |
6660 | * the container. If the the parameters can be | |
6661 | * satisfied reserve_space will record the disks, | |
6662 | * start offset, and size of the volume to be | |
6663 | * created. add_to_super and getinfo_super | |
6664 | * detect when autolayout is in progress. | |
6665 | */ | |
ca9de185 LM |
6666 | /* assuming that freesize is always given when array is |
6667 | created */ | |
6668 | if (super->orom && freesize) { | |
6669 | int count; | |
72a45777 | 6670 | count = count_volumes(super->hba, |
ca9de185 LM |
6671 | super->orom->dpa, verbose); |
6672 | if (super->orom->vphba <= count) { | |
676e87a8 | 6673 | pr_vrb("platform does not support more than %d raid volumes.\n", |
ca9de185 LM |
6674 | super->orom->vphba); |
6675 | return 0; | |
6676 | } | |
6677 | } | |
e91a3bad LM |
6678 | if (freesize) |
6679 | return reserve_space(st, raiddisks, size, | |
7ccc4cc4 | 6680 | *chunk, freesize); |
8592f29d N |
6681 | } |
6682 | return 1; | |
6683 | } | |
bf5a934a DW |
6684 | if (st->sb) { |
6685 | /* creating in a given container */ | |
6686 | return validate_geometry_imsm_volume(st, level, layout, | |
6687 | raiddisks, chunk, size, | |
af4348dd | 6688 | data_offset, |
bf5a934a DW |
6689 | dev, freesize, verbose); |
6690 | } | |
6691 | ||
bf5a934a DW |
6692 | /* This device needs to be a device in an 'imsm' container */ |
6693 | fd = open(dev, O_RDONLY|O_EXCL, 0); | |
6694 | if (fd >= 0) { | |
6695 | if (verbose) | |
e7b84f9d N |
6696 | pr_err("Cannot create this array on device %s\n", |
6697 | dev); | |
bf5a934a DW |
6698 | close(fd); |
6699 | return 0; | |
6700 | } | |
6701 | if (errno != EBUSY || (fd = open(dev, O_RDONLY, 0)) < 0) { | |
6702 | if (verbose) | |
e7b84f9d | 6703 | pr_err("Cannot open %s: %s\n", |
bf5a934a DW |
6704 | dev, strerror(errno)); |
6705 | return 0; | |
6706 | } | |
6707 | /* Well, it is in use by someone, maybe an 'imsm' container. */ | |
6708 | cfd = open_container(fd); | |
20cbe8d2 | 6709 | close(fd); |
bf5a934a | 6710 | if (cfd < 0) { |
bf5a934a | 6711 | if (verbose) |
e7b84f9d | 6712 | pr_err("Cannot use %s: It is busy\n", |
bf5a934a DW |
6713 | dev); |
6714 | return 0; | |
6715 | } | |
4dd2df09 | 6716 | sra = sysfs_read(cfd, NULL, GET_VERSION); |
bf5a934a | 6717 | if (sra && sra->array.major_version == -1 && |
20cbe8d2 AW |
6718 | strcmp(sra->text_version, "imsm") == 0) |
6719 | is_member = 1; | |
6720 | sysfs_free(sra); | |
6721 | if (is_member) { | |
bf5a934a DW |
6722 | /* This is a member of a imsm container. Load the container |
6723 | * and try to create a volume | |
6724 | */ | |
6725 | struct intel_super *super; | |
6726 | ||
ec50f7b6 | 6727 | if (load_super_imsm_all(st, cfd, (void **) &super, NULL, NULL, 1) == 0) { |
bf5a934a | 6728 | st->sb = super; |
4dd2df09 | 6729 | strcpy(st->container_devnm, fd2devnm(cfd)); |
bf5a934a DW |
6730 | close(cfd); |
6731 | return validate_geometry_imsm_volume(st, level, layout, | |
6732 | raiddisks, chunk, | |
af4348dd | 6733 | size, data_offset, dev, |
ecbd9e81 N |
6734 | freesize, 1) |
6735 | ? 1 : -1; | |
bf5a934a | 6736 | } |
20cbe8d2 | 6737 | } |
bf5a934a | 6738 | |
20cbe8d2 | 6739 | if (verbose) |
e7b84f9d | 6740 | pr_err("failed container membership check\n"); |
20cbe8d2 AW |
6741 | |
6742 | close(cfd); | |
6743 | return 0; | |
bf5a934a | 6744 | } |
0bd16cf2 | 6745 | |
30f58b22 | 6746 | static void default_geometry_imsm(struct supertype *st, int *level, int *layout, int *chunk) |
0bd16cf2 DJ |
6747 | { |
6748 | struct intel_super *super = st->sb; | |
6749 | ||
30f58b22 DW |
6750 | if (level && *level == UnSet) |
6751 | *level = LEVEL_CONTAINER; | |
6752 | ||
6753 | if (level && layout && *layout == UnSet) | |
6754 | *layout = imsm_level_to_layout(*level); | |
0bd16cf2 | 6755 | |
cd9d1ac7 DW |
6756 | if (chunk && (*chunk == UnSet || *chunk == 0)) |
6757 | *chunk = imsm_default_chunk(super->orom); | |
0bd16cf2 DJ |
6758 | } |
6759 | ||
33414a01 DW |
6760 | static void handle_missing(struct intel_super *super, struct imsm_dev *dev); |
6761 | ||
6762 | static int kill_subarray_imsm(struct supertype *st) | |
6763 | { | |
6764 | /* remove the subarray currently referenced by ->current_vol */ | |
6765 | __u8 i; | |
6766 | struct intel_dev **dp; | |
6767 | struct intel_super *super = st->sb; | |
6768 | __u8 current_vol = super->current_vol; | |
6769 | struct imsm_super *mpb = super->anchor; | |
6770 | ||
6771 | if (super->current_vol < 0) | |
6772 | return 2; | |
6773 | super->current_vol = -1; /* invalidate subarray cursor */ | |
6774 | ||
6775 | /* block deletions that would change the uuid of active subarrays | |
6776 | * | |
6777 | * FIXME when immutable ids are available, but note that we'll | |
6778 | * also need to fixup the invalidated/active subarray indexes in | |
6779 | * mdstat | |
6780 | */ | |
6781 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
6782 | char subarray[4]; | |
6783 | ||
6784 | if (i < current_vol) | |
6785 | continue; | |
6786 | sprintf(subarray, "%u", i); | |
4dd2df09 | 6787 | if (is_subarray_active(subarray, st->devnm)) { |
e7b84f9d N |
6788 | pr_err("deleting subarray-%d would change the UUID of active subarray-%d, aborting\n", |
6789 | current_vol, i); | |
33414a01 DW |
6790 | |
6791 | return 2; | |
6792 | } | |
6793 | } | |
6794 | ||
6795 | if (st->update_tail) { | |
503975b9 | 6796 | struct imsm_update_kill_array *u = xmalloc(sizeof(*u)); |
33414a01 | 6797 | |
33414a01 DW |
6798 | u->type = update_kill_array; |
6799 | u->dev_idx = current_vol; | |
6800 | append_metadata_update(st, u, sizeof(*u)); | |
6801 | ||
6802 | return 0; | |
6803 | } | |
6804 | ||
6805 | for (dp = &super->devlist; *dp;) | |
6806 | if ((*dp)->index == current_vol) { | |
6807 | *dp = (*dp)->next; | |
6808 | } else { | |
6809 | handle_missing(super, (*dp)->dev); | |
6810 | if ((*dp)->index > current_vol) | |
6811 | (*dp)->index--; | |
6812 | dp = &(*dp)->next; | |
6813 | } | |
6814 | ||
6815 | /* no more raid devices, all active components are now spares, | |
6816 | * but of course failed are still failed | |
6817 | */ | |
6818 | if (--mpb->num_raid_devs == 0) { | |
6819 | struct dl *d; | |
6820 | ||
6821 | for (d = super->disks; d; d = d->next) | |
a8619d23 AK |
6822 | if (d->index > -2) |
6823 | mark_spare(d); | |
33414a01 DW |
6824 | } |
6825 | ||
6826 | super->updates_pending++; | |
6827 | ||
6828 | return 0; | |
6829 | } | |
aa534678 | 6830 | |
a951a4f7 | 6831 | static int update_subarray_imsm(struct supertype *st, char *subarray, |
fa56eddb | 6832 | char *update, struct mddev_ident *ident) |
aa534678 DW |
6833 | { |
6834 | /* update the subarray currently referenced by ->current_vol */ | |
6835 | struct intel_super *super = st->sb; | |
6836 | struct imsm_super *mpb = super->anchor; | |
6837 | ||
aa534678 DW |
6838 | if (strcmp(update, "name") == 0) { |
6839 | char *name = ident->name; | |
a951a4f7 N |
6840 | char *ep; |
6841 | int vol; | |
aa534678 | 6842 | |
4dd2df09 | 6843 | if (is_subarray_active(subarray, st->devnm)) { |
e7b84f9d | 6844 | pr_err("Unable to update name of active subarray\n"); |
aa534678 DW |
6845 | return 2; |
6846 | } | |
6847 | ||
6848 | if (!check_name(super, name, 0)) | |
6849 | return 2; | |
6850 | ||
a951a4f7 N |
6851 | vol = strtoul(subarray, &ep, 10); |
6852 | if (*ep != '\0' || vol >= super->anchor->num_raid_devs) | |
6853 | return 2; | |
6854 | ||
aa534678 | 6855 | if (st->update_tail) { |
503975b9 | 6856 | struct imsm_update_rename_array *u = xmalloc(sizeof(*u)); |
aa534678 | 6857 | |
aa534678 | 6858 | u->type = update_rename_array; |
a951a4f7 | 6859 | u->dev_idx = vol; |
aa534678 DW |
6860 | snprintf((char *) u->name, MAX_RAID_SERIAL_LEN, "%s", name); |
6861 | append_metadata_update(st, u, sizeof(*u)); | |
6862 | } else { | |
6863 | struct imsm_dev *dev; | |
6864 | int i; | |
6865 | ||
a951a4f7 | 6866 | dev = get_imsm_dev(super, vol); |
aa534678 DW |
6867 | snprintf((char *) dev->volume, MAX_RAID_SERIAL_LEN, "%s", name); |
6868 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
6869 | dev = get_imsm_dev(super, i); | |
6870 | handle_missing(super, dev); | |
6871 | } | |
6872 | super->updates_pending++; | |
6873 | } | |
6874 | } else | |
6875 | return 2; | |
6876 | ||
6877 | return 0; | |
6878 | } | |
d1e02575 | 6879 | #endif /* MDASSEMBLE */ |
bf5a934a | 6880 | |
28bce06f AK |
6881 | static int is_gen_migration(struct imsm_dev *dev) |
6882 | { | |
7534230b AK |
6883 | if (dev == NULL) |
6884 | return 0; | |
6885 | ||
28bce06f AK |
6886 | if (!dev->vol.migr_state) |
6887 | return 0; | |
6888 | ||
6889 | if (migr_type(dev) == MIGR_GEN_MIGR) | |
6890 | return 1; | |
6891 | ||
6892 | return 0; | |
6893 | } | |
6894 | ||
1e5c6983 DW |
6895 | static int is_rebuilding(struct imsm_dev *dev) |
6896 | { | |
6897 | struct imsm_map *migr_map; | |
6898 | ||
6899 | if (!dev->vol.migr_state) | |
6900 | return 0; | |
6901 | ||
6902 | if (migr_type(dev) != MIGR_REBUILD) | |
6903 | return 0; | |
6904 | ||
238c0a71 | 6905 | migr_map = get_imsm_map(dev, MAP_1); |
1e5c6983 DW |
6906 | |
6907 | if (migr_map->map_state == IMSM_T_STATE_DEGRADED) | |
6908 | return 1; | |
6909 | else | |
6910 | return 0; | |
6911 | } | |
6912 | ||
b4ab44d8 | 6913 | #ifndef MDASSEMBLE |
6ce1fbf1 AK |
6914 | static int is_initializing(struct imsm_dev *dev) |
6915 | { | |
6916 | struct imsm_map *migr_map; | |
6917 | ||
6918 | if (!dev->vol.migr_state) | |
6919 | return 0; | |
6920 | ||
6921 | if (migr_type(dev) != MIGR_INIT) | |
6922 | return 0; | |
6923 | ||
238c0a71 | 6924 | migr_map = get_imsm_map(dev, MAP_1); |
6ce1fbf1 AK |
6925 | |
6926 | if (migr_map->map_state == IMSM_T_STATE_UNINITIALIZED) | |
6927 | return 1; | |
6928 | ||
6929 | return 0; | |
6ce1fbf1 | 6930 | } |
b4ab44d8 | 6931 | #endif |
6ce1fbf1 | 6932 | |
c47b0ff6 AK |
6933 | static void update_recovery_start(struct intel_super *super, |
6934 | struct imsm_dev *dev, | |
6935 | struct mdinfo *array) | |
1e5c6983 DW |
6936 | { |
6937 | struct mdinfo *rebuild = NULL; | |
6938 | struct mdinfo *d; | |
6939 | __u32 units; | |
6940 | ||
6941 | if (!is_rebuilding(dev)) | |
6942 | return; | |
6943 | ||
6944 | /* Find the rebuild target, but punt on the dual rebuild case */ | |
6945 | for (d = array->devs; d; d = d->next) | |
6946 | if (d->recovery_start == 0) { | |
6947 | if (rebuild) | |
6948 | return; | |
6949 | rebuild = d; | |
6950 | } | |
6951 | ||
4363fd80 DW |
6952 | if (!rebuild) { |
6953 | /* (?) none of the disks are marked with | |
6954 | * IMSM_ORD_REBUILD, so assume they are missing and the | |
6955 | * disk_ord_tbl was not correctly updated | |
6956 | */ | |
1ade5cc1 | 6957 | dprintf("failed to locate out-of-sync disk\n"); |
4363fd80 DW |
6958 | return; |
6959 | } | |
6960 | ||
1e5c6983 | 6961 | units = __le32_to_cpu(dev->vol.curr_migr_unit); |
c47b0ff6 | 6962 | rebuild->recovery_start = units * blocks_per_migr_unit(super, dev); |
1e5c6983 DW |
6963 | } |
6964 | ||
9e2d750d | 6965 | #ifndef MDASSEMBLE |
276d77db | 6966 | static int recover_backup_imsm(struct supertype *st, struct mdinfo *info); |
9e2d750d | 6967 | #endif |
1e5c6983 | 6968 | |
00bbdbda | 6969 | static struct mdinfo *container_content_imsm(struct supertype *st, char *subarray) |
cdddbdbc | 6970 | { |
4f5bc454 DW |
6971 | /* Given a container loaded by load_super_imsm_all, |
6972 | * extract information about all the arrays into | |
6973 | * an mdinfo tree. | |
00bbdbda | 6974 | * If 'subarray' is given, just extract info about that array. |
4f5bc454 DW |
6975 | * |
6976 | * For each imsm_dev create an mdinfo, fill it in, | |
6977 | * then look for matching devices in super->disks | |
6978 | * and create appropriate device mdinfo. | |
6979 | */ | |
6980 | struct intel_super *super = st->sb; | |
949c47a0 | 6981 | struct imsm_super *mpb = super->anchor; |
4f5bc454 | 6982 | struct mdinfo *rest = NULL; |
00bbdbda | 6983 | unsigned int i; |
81219e70 | 6984 | int sb_errors = 0; |
abef11a3 AK |
6985 | struct dl *d; |
6986 | int spare_disks = 0; | |
cdddbdbc | 6987 | |
19482bcc AK |
6988 | /* do not assemble arrays when not all attributes are supported */ |
6989 | if (imsm_check_attributes(mpb->attributes) == 0) { | |
81219e70 | 6990 | sb_errors = 1; |
7a862a02 | 6991 | pr_err("Unsupported attributes in IMSM metadata.Arrays activation is blocked.\n"); |
19482bcc AK |
6992 | } |
6993 | ||
abef11a3 AK |
6994 | /* count spare devices, not used in maps |
6995 | */ | |
6996 | for (d = super->disks; d; d = d->next) | |
6997 | if (d->index == -1) | |
6998 | spare_disks++; | |
6999 | ||
4f5bc454 | 7000 | for (i = 0; i < mpb->num_raid_devs; i++) { |
00bbdbda N |
7001 | struct imsm_dev *dev; |
7002 | struct imsm_map *map; | |
86e3692b | 7003 | struct imsm_map *map2; |
4f5bc454 | 7004 | struct mdinfo *this; |
a6482415 N |
7005 | int slot; |
7006 | #ifndef MDASSEMBLE | |
7007 | int chunk; | |
7008 | #endif | |
00bbdbda N |
7009 | char *ep; |
7010 | ||
7011 | if (subarray && | |
7012 | (i != strtoul(subarray, &ep, 10) || *ep != '\0')) | |
7013 | continue; | |
7014 | ||
7015 | dev = get_imsm_dev(super, i); | |
238c0a71 AK |
7016 | map = get_imsm_map(dev, MAP_0); |
7017 | map2 = get_imsm_map(dev, MAP_1); | |
4f5bc454 | 7018 | |
1ce0101c DW |
7019 | /* do not publish arrays that are in the middle of an |
7020 | * unsupported migration | |
7021 | */ | |
7022 | if (dev->vol.migr_state && | |
28bce06f | 7023 | (migr_type(dev) == MIGR_STATE_CHANGE)) { |
7a862a02 | 7024 | pr_err("cannot assemble volume '%.16s': unsupported migration in progress\n", |
1ce0101c DW |
7025 | dev->volume); |
7026 | continue; | |
7027 | } | |
2db86302 LM |
7028 | /* do not publish arrays that are not support by controller's |
7029 | * OROM/EFI | |
7030 | */ | |
1ce0101c | 7031 | |
503975b9 | 7032 | this = xmalloc(sizeof(*this)); |
4f5bc454 | 7033 | |
301406c9 | 7034 | super->current_vol = i; |
a5d85af7 | 7035 | getinfo_super_imsm_volume(st, this, NULL); |
9894ec0d | 7036 | this->next = rest; |
81219e70 | 7037 | #ifndef MDASSEMBLE |
a6482415 | 7038 | chunk = __le16_to_cpu(map->blocks_per_strip) >> 1; |
81219e70 LM |
7039 | /* mdadm does not support all metadata features- set the bit in all arrays state */ |
7040 | if (!validate_geometry_imsm_orom(super, | |
7041 | get_imsm_raid_level(map), /* RAID level */ | |
7042 | imsm_level_to_layout(get_imsm_raid_level(map)), | |
7043 | map->num_members, /* raid disks */ | |
2cc699af | 7044 | &chunk, join_u32(dev->size_low, dev->size_high), |
81219e70 | 7045 | 1 /* verbose */)) { |
7a862a02 | 7046 | pr_err("IMSM RAID geometry validation failed. Array %s activation is blocked.\n", |
81219e70 LM |
7047 | dev->volume); |
7048 | this->array.state |= | |
7049 | (1<<MD_SB_BLOCK_CONTAINER_RESHAPE) | | |
7050 | (1<<MD_SB_BLOCK_VOLUME); | |
7051 | } | |
7052 | #endif | |
7053 | ||
7054 | /* if array has bad blocks, set suitable bit in all arrays state */ | |
7055 | if (sb_errors) | |
7056 | this->array.state |= | |
7057 | (1<<MD_SB_BLOCK_CONTAINER_RESHAPE) | | |
7058 | (1<<MD_SB_BLOCK_VOLUME); | |
7059 | ||
4f5bc454 | 7060 | for (slot = 0 ; slot < map->num_members; slot++) { |
1e5c6983 | 7061 | unsigned long long recovery_start; |
4f5bc454 DW |
7062 | struct mdinfo *info_d; |
7063 | struct dl *d; | |
7064 | int idx; | |
9a1608e5 | 7065 | int skip; |
7eef0453 | 7066 | __u32 ord; |
4f5bc454 | 7067 | |
9a1608e5 | 7068 | skip = 0; |
238c0a71 AK |
7069 | idx = get_imsm_disk_idx(dev, slot, MAP_0); |
7070 | ord = get_imsm_ord_tbl_ent(dev, slot, MAP_X); | |
4f5bc454 DW |
7071 | for (d = super->disks; d ; d = d->next) |
7072 | if (d->index == idx) | |
0fbd635c | 7073 | break; |
4f5bc454 | 7074 | |
1e5c6983 | 7075 | recovery_start = MaxSector; |
4f5bc454 | 7076 | if (d == NULL) |
9a1608e5 | 7077 | skip = 1; |
25ed7e59 | 7078 | if (d && is_failed(&d->disk)) |
9a1608e5 | 7079 | skip = 1; |
7eef0453 | 7080 | if (ord & IMSM_ORD_REBUILD) |
1e5c6983 | 7081 | recovery_start = 0; |
9a1608e5 | 7082 | |
1011e834 | 7083 | /* |
9a1608e5 | 7084 | * if we skip some disks the array will be assmebled degraded; |
1e5c6983 DW |
7085 | * reset resync start to avoid a dirty-degraded |
7086 | * situation when performing the intial sync | |
9a1608e5 DW |
7087 | * |
7088 | * FIXME handle dirty degraded | |
7089 | */ | |
1e5c6983 | 7090 | if ((skip || recovery_start == 0) && !dev->vol.dirty) |
b7528a20 | 7091 | this->resync_start = MaxSector; |
9a1608e5 DW |
7092 | if (skip) |
7093 | continue; | |
4f5bc454 | 7094 | |
503975b9 | 7095 | info_d = xcalloc(1, sizeof(*info_d)); |
4f5bc454 DW |
7096 | info_d->next = this->devs; |
7097 | this->devs = info_d; | |
7098 | ||
4f5bc454 DW |
7099 | info_d->disk.number = d->index; |
7100 | info_d->disk.major = d->major; | |
7101 | info_d->disk.minor = d->minor; | |
7102 | info_d->disk.raid_disk = slot; | |
1e5c6983 | 7103 | info_d->recovery_start = recovery_start; |
86e3692b AK |
7104 | if (map2) { |
7105 | if (slot < map2->num_members) | |
7106 | info_d->disk.state = (1 << MD_DISK_ACTIVE); | |
04c3c514 AK |
7107 | else |
7108 | this->array.spare_disks++; | |
86e3692b AK |
7109 | } else { |
7110 | if (slot < map->num_members) | |
7111 | info_d->disk.state = (1 << MD_DISK_ACTIVE); | |
04c3c514 AK |
7112 | else |
7113 | this->array.spare_disks++; | |
86e3692b | 7114 | } |
1e5c6983 DW |
7115 | if (info_d->recovery_start == MaxSector) |
7116 | this->array.working_disks++; | |
4f5bc454 DW |
7117 | |
7118 | info_d->events = __le32_to_cpu(mpb->generation_num); | |
5551b113 | 7119 | info_d->data_offset = pba_of_lba0(map); |
06fb291a PB |
7120 | |
7121 | if (map->raid_level == 5) { | |
7122 | info_d->component_size = | |
7123 | num_data_stripes(map) * | |
7124 | map->blocks_per_strip; | |
7125 | } else { | |
7126 | info_d->component_size = blocks_per_member(map); | |
7127 | } | |
4f5bc454 | 7128 | } |
1e5c6983 | 7129 | /* now that the disk list is up-to-date fixup recovery_start */ |
c47b0ff6 | 7130 | update_recovery_start(super, dev, this); |
abef11a3 | 7131 | this->array.spare_disks += spare_disks; |
276d77db | 7132 | |
9e2d750d | 7133 | #ifndef MDASSEMBLE |
276d77db AK |
7134 | /* check for reshape */ |
7135 | if (this->reshape_active == 1) | |
7136 | recover_backup_imsm(st, this); | |
9e2d750d | 7137 | #endif |
9a1608e5 | 7138 | rest = this; |
4f5bc454 DW |
7139 | } |
7140 | ||
7141 | return rest; | |
cdddbdbc DW |
7142 | } |
7143 | ||
3b451610 AK |
7144 | static __u8 imsm_check_degraded(struct intel_super *super, struct imsm_dev *dev, |
7145 | int failed, int look_in_map) | |
c2a1e7da | 7146 | { |
3b451610 AK |
7147 | struct imsm_map *map; |
7148 | ||
7149 | map = get_imsm_map(dev, look_in_map); | |
c2a1e7da DW |
7150 | |
7151 | if (!failed) | |
1011e834 | 7152 | return map->map_state == IMSM_T_STATE_UNINITIALIZED ? |
3393c6af | 7153 | IMSM_T_STATE_UNINITIALIZED : IMSM_T_STATE_NORMAL; |
c2a1e7da DW |
7154 | |
7155 | switch (get_imsm_raid_level(map)) { | |
7156 | case 0: | |
7157 | return IMSM_T_STATE_FAILED; | |
7158 | break; | |
7159 | case 1: | |
7160 | if (failed < map->num_members) | |
7161 | return IMSM_T_STATE_DEGRADED; | |
7162 | else | |
7163 | return IMSM_T_STATE_FAILED; | |
7164 | break; | |
7165 | case 10: | |
7166 | { | |
7167 | /** | |
c92a2527 DW |
7168 | * check to see if any mirrors have failed, otherwise we |
7169 | * are degraded. Even numbered slots are mirrored on | |
7170 | * slot+1 | |
c2a1e7da | 7171 | */ |
c2a1e7da | 7172 | int i; |
d9b420a5 N |
7173 | /* gcc -Os complains that this is unused */ |
7174 | int insync = insync; | |
c2a1e7da DW |
7175 | |
7176 | for (i = 0; i < map->num_members; i++) { | |
238c0a71 | 7177 | __u32 ord = get_imsm_ord_tbl_ent(dev, i, MAP_X); |
c92a2527 DW |
7178 | int idx = ord_to_idx(ord); |
7179 | struct imsm_disk *disk; | |
c2a1e7da | 7180 | |
c92a2527 | 7181 | /* reset the potential in-sync count on even-numbered |
1011e834 | 7182 | * slots. num_copies is always 2 for imsm raid10 |
c92a2527 DW |
7183 | */ |
7184 | if ((i & 1) == 0) | |
7185 | insync = 2; | |
c2a1e7da | 7186 | |
c92a2527 | 7187 | disk = get_imsm_disk(super, idx); |
25ed7e59 | 7188 | if (!disk || is_failed(disk) || ord & IMSM_ORD_REBUILD) |
c92a2527 | 7189 | insync--; |
c2a1e7da | 7190 | |
c92a2527 DW |
7191 | /* no in-sync disks left in this mirror the |
7192 | * array has failed | |
7193 | */ | |
7194 | if (insync == 0) | |
7195 | return IMSM_T_STATE_FAILED; | |
c2a1e7da DW |
7196 | } |
7197 | ||
7198 | return IMSM_T_STATE_DEGRADED; | |
7199 | } | |
7200 | case 5: | |
7201 | if (failed < 2) | |
7202 | return IMSM_T_STATE_DEGRADED; | |
7203 | else | |
7204 | return IMSM_T_STATE_FAILED; | |
7205 | break; | |
7206 | default: | |
7207 | break; | |
7208 | } | |
7209 | ||
7210 | return map->map_state; | |
7211 | } | |
7212 | ||
3b451610 AK |
7213 | static int imsm_count_failed(struct intel_super *super, struct imsm_dev *dev, |
7214 | int look_in_map) | |
c2a1e7da DW |
7215 | { |
7216 | int i; | |
7217 | int failed = 0; | |
7218 | struct imsm_disk *disk; | |
d5985138 AK |
7219 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
7220 | struct imsm_map *prev = get_imsm_map(dev, MAP_1); | |
68fe4598 | 7221 | struct imsm_map *map_for_loop; |
0556e1a2 DW |
7222 | __u32 ord; |
7223 | int idx; | |
d5985138 | 7224 | int idx_1; |
c2a1e7da | 7225 | |
0556e1a2 DW |
7226 | /* at the beginning of migration we set IMSM_ORD_REBUILD on |
7227 | * disks that are being rebuilt. New failures are recorded to | |
7228 | * map[0]. So we look through all the disks we started with and | |
7229 | * see if any failures are still present, or if any new ones | |
7230 | * have arrived | |
0556e1a2 | 7231 | */ |
d5985138 AK |
7232 | map_for_loop = map; |
7233 | if (prev && (map->num_members < prev->num_members)) | |
7234 | map_for_loop = prev; | |
68fe4598 LD |
7235 | |
7236 | for (i = 0; i < map_for_loop->num_members; i++) { | |
d5985138 | 7237 | idx_1 = -255; |
238c0a71 AK |
7238 | /* when MAP_X is passed both maps failures are counted |
7239 | */ | |
d5985138 | 7240 | if (prev && |
089f9d79 JS |
7241 | (look_in_map == MAP_1 || look_in_map == MAP_X) && |
7242 | i < prev->num_members) { | |
d5985138 AK |
7243 | ord = __le32_to_cpu(prev->disk_ord_tbl[i]); |
7244 | idx_1 = ord_to_idx(ord); | |
c2a1e7da | 7245 | |
d5985138 AK |
7246 | disk = get_imsm_disk(super, idx_1); |
7247 | if (!disk || is_failed(disk) || ord & IMSM_ORD_REBUILD) | |
7248 | failed++; | |
7249 | } | |
089f9d79 JS |
7250 | if ((look_in_map == MAP_0 || look_in_map == MAP_X) && |
7251 | i < map->num_members) { | |
d5985138 AK |
7252 | ord = __le32_to_cpu(map->disk_ord_tbl[i]); |
7253 | idx = ord_to_idx(ord); | |
7254 | ||
7255 | if (idx != idx_1) { | |
7256 | disk = get_imsm_disk(super, idx); | |
7257 | if (!disk || is_failed(disk) || | |
7258 | ord & IMSM_ORD_REBUILD) | |
7259 | failed++; | |
7260 | } | |
7261 | } | |
c2a1e7da DW |
7262 | } |
7263 | ||
7264 | return failed; | |
845dea95 NB |
7265 | } |
7266 | ||
97b4d0e9 DW |
7267 | #ifndef MDASSEMBLE |
7268 | static int imsm_open_new(struct supertype *c, struct active_array *a, | |
7269 | char *inst) | |
7270 | { | |
7271 | struct intel_super *super = c->sb; | |
7272 | struct imsm_super *mpb = super->anchor; | |
9587c373 | 7273 | |
97b4d0e9 | 7274 | if (atoi(inst) >= mpb->num_raid_devs) { |
1ade5cc1 | 7275 | pr_err("subarry index %d, out of range\n", atoi(inst)); |
97b4d0e9 DW |
7276 | return -ENODEV; |
7277 | } | |
7278 | ||
7279 | dprintf("imsm: open_new %s\n", inst); | |
7280 | a->info.container_member = atoi(inst); | |
7281 | return 0; | |
7282 | } | |
7283 | ||
0c046afd DW |
7284 | static int is_resyncing(struct imsm_dev *dev) |
7285 | { | |
7286 | struct imsm_map *migr_map; | |
7287 | ||
7288 | if (!dev->vol.migr_state) | |
7289 | return 0; | |
7290 | ||
1484e727 DW |
7291 | if (migr_type(dev) == MIGR_INIT || |
7292 | migr_type(dev) == MIGR_REPAIR) | |
0c046afd DW |
7293 | return 1; |
7294 | ||
4c9bc37b AK |
7295 | if (migr_type(dev) == MIGR_GEN_MIGR) |
7296 | return 0; | |
7297 | ||
238c0a71 | 7298 | migr_map = get_imsm_map(dev, MAP_1); |
0c046afd | 7299 | |
089f9d79 JS |
7300 | if (migr_map->map_state == IMSM_T_STATE_NORMAL && |
7301 | dev->vol.migr_type != MIGR_GEN_MIGR) | |
0c046afd DW |
7302 | return 1; |
7303 | else | |
7304 | return 0; | |
7305 | } | |
7306 | ||
0556e1a2 DW |
7307 | /* return true if we recorded new information */ |
7308 | static int mark_failure(struct imsm_dev *dev, struct imsm_disk *disk, int idx) | |
47ee5a45 | 7309 | { |
0556e1a2 DW |
7310 | __u32 ord; |
7311 | int slot; | |
7312 | struct imsm_map *map; | |
86c54047 DW |
7313 | char buf[MAX_RAID_SERIAL_LEN+3]; |
7314 | unsigned int len, shift = 0; | |
0556e1a2 DW |
7315 | |
7316 | /* new failures are always set in map[0] */ | |
238c0a71 | 7317 | map = get_imsm_map(dev, MAP_0); |
0556e1a2 DW |
7318 | |
7319 | slot = get_imsm_disk_slot(map, idx); | |
7320 | if (slot < 0) | |
7321 | return 0; | |
7322 | ||
7323 | ord = __le32_to_cpu(map->disk_ord_tbl[slot]); | |
25ed7e59 | 7324 | if (is_failed(disk) && (ord & IMSM_ORD_REBUILD)) |
0556e1a2 DW |
7325 | return 0; |
7326 | ||
7d0c5e24 LD |
7327 | memcpy(buf, disk->serial, MAX_RAID_SERIAL_LEN); |
7328 | buf[MAX_RAID_SERIAL_LEN] = '\000'; | |
7329 | strcat(buf, ":0"); | |
86c54047 DW |
7330 | if ((len = strlen(buf)) >= MAX_RAID_SERIAL_LEN) |
7331 | shift = len - MAX_RAID_SERIAL_LEN + 1; | |
7332 | strncpy((char *)disk->serial, &buf[shift], MAX_RAID_SERIAL_LEN); | |
7333 | ||
f2f27e63 | 7334 | disk->status |= FAILED_DISK; |
0556e1a2 | 7335 | set_imsm_ord_tbl_ent(map, slot, idx | IMSM_ORD_REBUILD); |
17788994 AK |
7336 | /* mark failures in second map if second map exists and this disk |
7337 | * in this slot. | |
7338 | * This is valid for migration, initialization and rebuild | |
7339 | */ | |
7340 | if (dev->vol.migr_state) { | |
238c0a71 | 7341 | struct imsm_map *map2 = get_imsm_map(dev, MAP_1); |
0a108d63 AK |
7342 | int slot2 = get_imsm_disk_slot(map2, idx); |
7343 | ||
089f9d79 | 7344 | if (slot2 < map2->num_members && slot2 >= 0) |
0a108d63 | 7345 | set_imsm_ord_tbl_ent(map2, slot2, |
1ace8403 AK |
7346 | idx | IMSM_ORD_REBUILD); |
7347 | } | |
f21e18ca | 7348 | if (map->failed_disk_num == 0xff) |
0556e1a2 DW |
7349 | map->failed_disk_num = slot; |
7350 | return 1; | |
7351 | } | |
7352 | ||
7353 | static void mark_missing(struct imsm_dev *dev, struct imsm_disk *disk, int idx) | |
7354 | { | |
7355 | mark_failure(dev, disk, idx); | |
7356 | ||
7357 | if (disk->scsi_id == __cpu_to_le32(~(__u32)0)) | |
7358 | return; | |
7359 | ||
47ee5a45 DW |
7360 | disk->scsi_id = __cpu_to_le32(~(__u32)0); |
7361 | memmove(&disk->serial[0], &disk->serial[1], MAX_RAID_SERIAL_LEN - 1); | |
7362 | } | |
7363 | ||
33414a01 DW |
7364 | static void handle_missing(struct intel_super *super, struct imsm_dev *dev) |
7365 | { | |
33414a01 | 7366 | struct dl *dl; |
33414a01 DW |
7367 | |
7368 | if (!super->missing) | |
7369 | return; | |
33414a01 | 7370 | |
79b68f1b PC |
7371 | /* When orom adds replacement for missing disk it does |
7372 | * not remove entry of missing disk, but just updates map with | |
7373 | * new added disk. So it is not enough just to test if there is | |
7374 | * any missing disk, we have to look if there are any failed disks | |
7375 | * in map to stop migration */ | |
7376 | ||
33414a01 | 7377 | dprintf("imsm: mark missing\n"); |
3d59f0c0 AK |
7378 | /* end process for initialization and rebuild only |
7379 | */ | |
7380 | if (is_gen_migration(dev) == 0) { | |
7381 | __u8 map_state; | |
7382 | int failed; | |
7383 | ||
7384 | failed = imsm_count_failed(super, dev, MAP_0); | |
7385 | map_state = imsm_check_degraded(super, dev, failed, MAP_0); | |
7386 | ||
79b68f1b PC |
7387 | if (failed) |
7388 | end_migration(dev, super, map_state); | |
3d59f0c0 | 7389 | } |
33414a01 DW |
7390 | for (dl = super->missing; dl; dl = dl->next) |
7391 | mark_missing(dev, &dl->disk, dl->index); | |
7392 | super->updates_pending++; | |
7393 | } | |
7394 | ||
f3871fdc AK |
7395 | static unsigned long long imsm_set_array_size(struct imsm_dev *dev, |
7396 | long long new_size) | |
70bdf0dc | 7397 | { |
238c0a71 | 7398 | int used_disks = imsm_num_data_members(dev, MAP_0); |
70bdf0dc AK |
7399 | unsigned long long array_blocks; |
7400 | struct imsm_map *map; | |
7401 | ||
7402 | if (used_disks == 0) { | |
7403 | /* when problems occures | |
7404 | * return current array_blocks value | |
7405 | */ | |
7406 | array_blocks = __le32_to_cpu(dev->size_high); | |
7407 | array_blocks = array_blocks << 32; | |
7408 | array_blocks += __le32_to_cpu(dev->size_low); | |
7409 | ||
7410 | return array_blocks; | |
7411 | } | |
7412 | ||
7413 | /* set array size in metadata | |
7414 | */ | |
f3871fdc AK |
7415 | if (new_size <= 0) { |
7416 | /* OLCE size change is caused by added disks | |
7417 | */ | |
7418 | map = get_imsm_map(dev, MAP_0); | |
7419 | array_blocks = blocks_per_member(map) * used_disks; | |
7420 | } else { | |
7421 | /* Online Volume Size Change | |
7422 | * Using available free space | |
7423 | */ | |
7424 | array_blocks = new_size; | |
7425 | } | |
70bdf0dc AK |
7426 | |
7427 | /* round array size down to closest MB | |
7428 | */ | |
7429 | array_blocks = (array_blocks >> SECT_PER_MB_SHIFT) << SECT_PER_MB_SHIFT; | |
7430 | dev->size_low = __cpu_to_le32((__u32)array_blocks); | |
7431 | dev->size_high = __cpu_to_le32((__u32)(array_blocks >> 32)); | |
7432 | ||
7433 | return array_blocks; | |
7434 | } | |
7435 | ||
28bce06f AK |
7436 | static void imsm_set_disk(struct active_array *a, int n, int state); |
7437 | ||
0e2d1a4e AK |
7438 | static void imsm_progress_container_reshape(struct intel_super *super) |
7439 | { | |
7440 | /* if no device has a migr_state, but some device has a | |
7441 | * different number of members than the previous device, start | |
7442 | * changing the number of devices in this device to match | |
7443 | * previous. | |
7444 | */ | |
7445 | struct imsm_super *mpb = super->anchor; | |
7446 | int prev_disks = -1; | |
7447 | int i; | |
1dfaa380 | 7448 | int copy_map_size; |
0e2d1a4e AK |
7449 | |
7450 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
7451 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
238c0a71 | 7452 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
0e2d1a4e AK |
7453 | struct imsm_map *map2; |
7454 | int prev_num_members; | |
0e2d1a4e AK |
7455 | |
7456 | if (dev->vol.migr_state) | |
7457 | return; | |
7458 | ||
7459 | if (prev_disks == -1) | |
7460 | prev_disks = map->num_members; | |
7461 | if (prev_disks == map->num_members) | |
7462 | continue; | |
7463 | ||
7464 | /* OK, this array needs to enter reshape mode. | |
7465 | * i.e it needs a migr_state | |
7466 | */ | |
7467 | ||
1dfaa380 | 7468 | copy_map_size = sizeof_imsm_map(map); |
0e2d1a4e AK |
7469 | prev_num_members = map->num_members; |
7470 | map->num_members = prev_disks; | |
7471 | dev->vol.migr_state = 1; | |
7472 | dev->vol.curr_migr_unit = 0; | |
ea672ee1 | 7473 | set_migr_type(dev, MIGR_GEN_MIGR); |
0e2d1a4e AK |
7474 | for (i = prev_num_members; |
7475 | i < map->num_members; i++) | |
7476 | set_imsm_ord_tbl_ent(map, i, i); | |
238c0a71 | 7477 | map2 = get_imsm_map(dev, MAP_1); |
0e2d1a4e | 7478 | /* Copy the current map */ |
1dfaa380 | 7479 | memcpy(map2, map, copy_map_size); |
0e2d1a4e AK |
7480 | map2->num_members = prev_num_members; |
7481 | ||
f3871fdc | 7482 | imsm_set_array_size(dev, -1); |
51d83f5d | 7483 | super->clean_migration_record_by_mdmon = 1; |
0e2d1a4e AK |
7484 | super->updates_pending++; |
7485 | } | |
7486 | } | |
7487 | ||
aad6f216 | 7488 | /* Handle dirty -> clean transititions, resync and reshape. Degraded and rebuild |
0c046afd DW |
7489 | * states are handled in imsm_set_disk() with one exception, when a |
7490 | * resync is stopped due to a new failure this routine will set the | |
7491 | * 'degraded' state for the array. | |
7492 | */ | |
01f157d7 | 7493 | static int imsm_set_array_state(struct active_array *a, int consistent) |
a862209d DW |
7494 | { |
7495 | int inst = a->info.container_member; | |
7496 | struct intel_super *super = a->container->sb; | |
949c47a0 | 7497 | struct imsm_dev *dev = get_imsm_dev(super, inst); |
238c0a71 | 7498 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
3b451610 AK |
7499 | int failed = imsm_count_failed(super, dev, MAP_0); |
7500 | __u8 map_state = imsm_check_degraded(super, dev, failed, MAP_0); | |
1e5c6983 | 7501 | __u32 blocks_per_unit; |
a862209d | 7502 | |
1af97990 AK |
7503 | if (dev->vol.migr_state && |
7504 | dev->vol.migr_type == MIGR_GEN_MIGR) { | |
7505 | /* array state change is blocked due to reshape action | |
aad6f216 N |
7506 | * We might need to |
7507 | * - abort the reshape (if last_checkpoint is 0 and action!= reshape) | |
7508 | * - finish the reshape (if last_checkpoint is big and action != reshape) | |
7509 | * - update curr_migr_unit | |
1af97990 | 7510 | */ |
aad6f216 N |
7511 | if (a->curr_action == reshape) { |
7512 | /* still reshaping, maybe update curr_migr_unit */ | |
633b5610 | 7513 | goto mark_checkpoint; |
aad6f216 N |
7514 | } else { |
7515 | if (a->last_checkpoint == 0 && a->prev_action == reshape) { | |
7516 | /* for some reason we aborted the reshape. | |
b66e591b AK |
7517 | * |
7518 | * disable automatic metadata rollback | |
7519 | * user action is required to recover process | |
aad6f216 | 7520 | */ |
b66e591b | 7521 | if (0) { |
238c0a71 AK |
7522 | struct imsm_map *map2 = |
7523 | get_imsm_map(dev, MAP_1); | |
7524 | dev->vol.migr_state = 0; | |
7525 | set_migr_type(dev, 0); | |
7526 | dev->vol.curr_migr_unit = 0; | |
7527 | memcpy(map, map2, | |
7528 | sizeof_imsm_map(map2)); | |
7529 | super->updates_pending++; | |
b66e591b | 7530 | } |
aad6f216 N |
7531 | } |
7532 | if (a->last_checkpoint >= a->info.component_size) { | |
7533 | unsigned long long array_blocks; | |
7534 | int used_disks; | |
e154ced3 | 7535 | struct mdinfo *mdi; |
aad6f216 | 7536 | |
238c0a71 | 7537 | used_disks = imsm_num_data_members(dev, MAP_0); |
d55adef9 AK |
7538 | if (used_disks > 0) { |
7539 | array_blocks = | |
5551b113 | 7540 | blocks_per_member(map) * |
d55adef9 AK |
7541 | used_disks; |
7542 | /* round array size down to closest MB | |
7543 | */ | |
7544 | array_blocks = (array_blocks | |
7545 | >> SECT_PER_MB_SHIFT) | |
7546 | << SECT_PER_MB_SHIFT; | |
d55adef9 AK |
7547 | a->info.custom_array_size = array_blocks; |
7548 | /* encourage manager to update array | |
7549 | * size | |
7550 | */ | |
e154ced3 | 7551 | |
d55adef9 | 7552 | a->check_reshape = 1; |
633b5610 | 7553 | } |
e154ced3 AK |
7554 | /* finalize online capacity expansion/reshape */ |
7555 | for (mdi = a->info.devs; mdi; mdi = mdi->next) | |
7556 | imsm_set_disk(a, | |
7557 | mdi->disk.raid_disk, | |
7558 | mdi->curr_state); | |
7559 | ||
0e2d1a4e | 7560 | imsm_progress_container_reshape(super); |
e154ced3 | 7561 | } |
aad6f216 | 7562 | } |
1af97990 AK |
7563 | } |
7564 | ||
47ee5a45 | 7565 | /* before we activate this array handle any missing disks */ |
33414a01 DW |
7566 | if (consistent == 2) |
7567 | handle_missing(super, dev); | |
1e5c6983 | 7568 | |
0c046afd | 7569 | if (consistent == 2 && |
b7941fd6 | 7570 | (!is_resync_complete(&a->info) || |
0c046afd DW |
7571 | map_state != IMSM_T_STATE_NORMAL || |
7572 | dev->vol.migr_state)) | |
01f157d7 | 7573 | consistent = 0; |
272906ef | 7574 | |
b7941fd6 | 7575 | if (is_resync_complete(&a->info)) { |
0c046afd | 7576 | /* complete intialization / resync, |
0556e1a2 DW |
7577 | * recovery and interrupted recovery is completed in |
7578 | * ->set_disk | |
0c046afd DW |
7579 | */ |
7580 | if (is_resyncing(dev)) { | |
7581 | dprintf("imsm: mark resync done\n"); | |
809da78e | 7582 | end_migration(dev, super, map_state); |
115c3803 | 7583 | super->updates_pending++; |
484240d8 | 7584 | a->last_checkpoint = 0; |
115c3803 | 7585 | } |
b9172665 AK |
7586 | } else if ((!is_resyncing(dev) && !failed) && |
7587 | (imsm_reshape_blocks_arrays_changes(super) == 0)) { | |
0c046afd | 7588 | /* mark the start of the init process if nothing is failed */ |
b7941fd6 | 7589 | dprintf("imsm: mark resync start\n"); |
1484e727 | 7590 | if (map->map_state == IMSM_T_STATE_UNINITIALIZED) |
8e59f3d8 | 7591 | migrate(dev, super, IMSM_T_STATE_NORMAL, MIGR_INIT); |
1484e727 | 7592 | else |
8e59f3d8 | 7593 | migrate(dev, super, IMSM_T_STATE_NORMAL, MIGR_REPAIR); |
3393c6af | 7594 | super->updates_pending++; |
115c3803 | 7595 | } |
a862209d | 7596 | |
633b5610 | 7597 | mark_checkpoint: |
5b83bacf AK |
7598 | /* skip checkpointing for general migration, |
7599 | * it is controlled in mdadm | |
7600 | */ | |
7601 | if (is_gen_migration(dev)) | |
7602 | goto skip_mark_checkpoint; | |
7603 | ||
1e5c6983 | 7604 | /* check if we can update curr_migr_unit from resync_start, recovery_start */ |
c47b0ff6 | 7605 | blocks_per_unit = blocks_per_migr_unit(super, dev); |
4f0a7acc | 7606 | if (blocks_per_unit) { |
1e5c6983 DW |
7607 | __u32 units32; |
7608 | __u64 units; | |
7609 | ||
4f0a7acc | 7610 | units = a->last_checkpoint / blocks_per_unit; |
1e5c6983 DW |
7611 | units32 = units; |
7612 | ||
7613 | /* check that we did not overflow 32-bits, and that | |
7614 | * curr_migr_unit needs updating | |
7615 | */ | |
7616 | if (units32 == units && | |
bfd80a56 | 7617 | units32 != 0 && |
1e5c6983 DW |
7618 | __le32_to_cpu(dev->vol.curr_migr_unit) != units32) { |
7619 | dprintf("imsm: mark checkpoint (%u)\n", units32); | |
7620 | dev->vol.curr_migr_unit = __cpu_to_le32(units32); | |
7621 | super->updates_pending++; | |
7622 | } | |
7623 | } | |
f8f603f1 | 7624 | |
5b83bacf | 7625 | skip_mark_checkpoint: |
3393c6af | 7626 | /* mark dirty / clean */ |
0c046afd | 7627 | if (dev->vol.dirty != !consistent) { |
b7941fd6 | 7628 | dprintf("imsm: mark '%s'\n", consistent ? "clean" : "dirty"); |
0c046afd DW |
7629 | if (consistent) |
7630 | dev->vol.dirty = 0; | |
7631 | else | |
7632 | dev->vol.dirty = 1; | |
a862209d DW |
7633 | super->updates_pending++; |
7634 | } | |
28bce06f | 7635 | |
01f157d7 | 7636 | return consistent; |
a862209d DW |
7637 | } |
7638 | ||
8d45d196 | 7639 | static void imsm_set_disk(struct active_array *a, int n, int state) |
845dea95 | 7640 | { |
8d45d196 DW |
7641 | int inst = a->info.container_member; |
7642 | struct intel_super *super = a->container->sb; | |
949c47a0 | 7643 | struct imsm_dev *dev = get_imsm_dev(super, inst); |
238c0a71 | 7644 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
8d45d196 | 7645 | struct imsm_disk *disk; |
7ce05701 LD |
7646 | struct mdinfo *mdi; |
7647 | int recovery_not_finished = 0; | |
0c046afd | 7648 | int failed; |
b10b37b8 | 7649 | __u32 ord; |
0c046afd | 7650 | __u8 map_state; |
8d45d196 DW |
7651 | |
7652 | if (n > map->num_members) | |
e12b3daa | 7653 | pr_err("imsm: set_disk %d out of range 0..%d\n", |
8d45d196 DW |
7654 | n, map->num_members - 1); |
7655 | ||
7656 | if (n < 0) | |
7657 | return; | |
7658 | ||
4e6e574a | 7659 | dprintf("imsm: set_disk %d:%x\n", n, state); |
8d45d196 | 7660 | |
238c0a71 | 7661 | ord = get_imsm_ord_tbl_ent(dev, n, MAP_0); |
b10b37b8 | 7662 | disk = get_imsm_disk(super, ord_to_idx(ord)); |
8d45d196 | 7663 | |
5802a811 | 7664 | /* check for new failures */ |
0556e1a2 DW |
7665 | if (state & DS_FAULTY) { |
7666 | if (mark_failure(dev, disk, ord_to_idx(ord))) | |
7667 | super->updates_pending++; | |
8d45d196 | 7668 | } |
47ee5a45 | 7669 | |
19859edc | 7670 | /* check if in_sync */ |
0556e1a2 | 7671 | if (state & DS_INSYNC && ord & IMSM_ORD_REBUILD && is_rebuilding(dev)) { |
238c0a71 | 7672 | struct imsm_map *migr_map = get_imsm_map(dev, MAP_1); |
b10b37b8 DW |
7673 | |
7674 | set_imsm_ord_tbl_ent(migr_map, n, ord_to_idx(ord)); | |
19859edc DW |
7675 | super->updates_pending++; |
7676 | } | |
8d45d196 | 7677 | |
3b451610 AK |
7678 | failed = imsm_count_failed(super, dev, MAP_0); |
7679 | map_state = imsm_check_degraded(super, dev, failed, MAP_0); | |
5802a811 | 7680 | |
0c046afd | 7681 | /* check if recovery complete, newly degraded, or failed */ |
94002678 AK |
7682 | dprintf("imsm: Detected transition to state "); |
7683 | switch (map_state) { | |
7684 | case IMSM_T_STATE_NORMAL: /* transition to normal state */ | |
7685 | dprintf("normal: "); | |
7686 | if (is_rebuilding(dev)) { | |
1ade5cc1 | 7687 | dprintf_cont("while rebuilding"); |
7ce05701 LD |
7688 | /* check if recovery is really finished */ |
7689 | for (mdi = a->info.devs; mdi ; mdi = mdi->next) | |
7690 | if (mdi->recovery_start != MaxSector) { | |
7691 | recovery_not_finished = 1; | |
7692 | break; | |
7693 | } | |
7694 | if (recovery_not_finished) { | |
1ade5cc1 N |
7695 | dprintf_cont("\n"); |
7696 | dprintf("Rebuild has not finished yet, state not changed"); | |
7ce05701 LD |
7697 | if (a->last_checkpoint < mdi->recovery_start) { |
7698 | a->last_checkpoint = mdi->recovery_start; | |
7699 | super->updates_pending++; | |
7700 | } | |
7701 | break; | |
7702 | } | |
94002678 | 7703 | end_migration(dev, super, map_state); |
238c0a71 | 7704 | map = get_imsm_map(dev, MAP_0); |
94002678 AK |
7705 | map->failed_disk_num = ~0; |
7706 | super->updates_pending++; | |
7707 | a->last_checkpoint = 0; | |
7708 | break; | |
7709 | } | |
7710 | if (is_gen_migration(dev)) { | |
1ade5cc1 | 7711 | dprintf_cont("while general migration"); |
bf2f0071 | 7712 | if (a->last_checkpoint >= a->info.component_size) |
809da78e | 7713 | end_migration(dev, super, map_state); |
94002678 AK |
7714 | else |
7715 | map->map_state = map_state; | |
238c0a71 | 7716 | map = get_imsm_map(dev, MAP_0); |
28bce06f | 7717 | map->failed_disk_num = ~0; |
94002678 | 7718 | super->updates_pending++; |
bf2f0071 | 7719 | break; |
94002678 AK |
7720 | } |
7721 | break; | |
7722 | case IMSM_T_STATE_DEGRADED: /* transition to degraded state */ | |
1ade5cc1 | 7723 | dprintf_cont("degraded: "); |
089f9d79 | 7724 | if (map->map_state != map_state && !dev->vol.migr_state) { |
1ade5cc1 | 7725 | dprintf_cont("mark degraded"); |
94002678 AK |
7726 | map->map_state = map_state; |
7727 | super->updates_pending++; | |
7728 | a->last_checkpoint = 0; | |
7729 | break; | |
7730 | } | |
7731 | if (is_rebuilding(dev)) { | |
1ade5cc1 | 7732 | dprintf_cont("while rebuilding."); |
94002678 | 7733 | if (map->map_state != map_state) { |
1ade5cc1 | 7734 | dprintf_cont(" Map state change"); |
94002678 AK |
7735 | end_migration(dev, super, map_state); |
7736 | super->updates_pending++; | |
7737 | } | |
7738 | break; | |
7739 | } | |
7740 | if (is_gen_migration(dev)) { | |
1ade5cc1 | 7741 | dprintf_cont("while general migration"); |
bf2f0071 | 7742 | if (a->last_checkpoint >= a->info.component_size) |
809da78e | 7743 | end_migration(dev, super, map_state); |
94002678 AK |
7744 | else { |
7745 | map->map_state = map_state; | |
3b451610 | 7746 | manage_second_map(super, dev); |
94002678 AK |
7747 | } |
7748 | super->updates_pending++; | |
bf2f0071 | 7749 | break; |
28bce06f | 7750 | } |
6ce1fbf1 | 7751 | if (is_initializing(dev)) { |
1ade5cc1 | 7752 | dprintf_cont("while initialization."); |
6ce1fbf1 AK |
7753 | map->map_state = map_state; |
7754 | super->updates_pending++; | |
7755 | break; | |
7756 | } | |
94002678 AK |
7757 | break; |
7758 | case IMSM_T_STATE_FAILED: /* transition to failed state */ | |
1ade5cc1 | 7759 | dprintf_cont("failed: "); |
94002678 | 7760 | if (is_gen_migration(dev)) { |
1ade5cc1 | 7761 | dprintf_cont("while general migration"); |
94002678 AK |
7762 | map->map_state = map_state; |
7763 | super->updates_pending++; | |
7764 | break; | |
7765 | } | |
7766 | if (map->map_state != map_state) { | |
1ade5cc1 | 7767 | dprintf_cont("mark failed"); |
94002678 AK |
7768 | end_migration(dev, super, map_state); |
7769 | super->updates_pending++; | |
7770 | a->last_checkpoint = 0; | |
7771 | break; | |
7772 | } | |
7773 | break; | |
7774 | default: | |
1ade5cc1 | 7775 | dprintf_cont("state %i\n", map_state); |
5802a811 | 7776 | } |
1ade5cc1 | 7777 | dprintf_cont("\n"); |
845dea95 NB |
7778 | } |
7779 | ||
f796af5d | 7780 | static int store_imsm_mpb(int fd, struct imsm_super *mpb) |
c2a1e7da | 7781 | { |
f796af5d | 7782 | void *buf = mpb; |
c2a1e7da DW |
7783 | __u32 mpb_size = __le32_to_cpu(mpb->mpb_size); |
7784 | unsigned long long dsize; | |
7785 | unsigned long long sectors; | |
f36a9ecd | 7786 | unsigned int sector_size; |
c2a1e7da | 7787 | |
f36a9ecd | 7788 | get_dev_sector_size(fd, NULL, §or_size); |
c2a1e7da DW |
7789 | get_dev_size(fd, NULL, &dsize); |
7790 | ||
f36a9ecd | 7791 | if (mpb_size > sector_size) { |
272f648f | 7792 | /* -1 to account for anchor */ |
f36a9ecd | 7793 | sectors = mpb_sectors(mpb, sector_size) - 1; |
c2a1e7da | 7794 | |
272f648f | 7795 | /* write the extended mpb to the sectors preceeding the anchor */ |
f36a9ecd PB |
7796 | if (lseek64(fd, dsize - (sector_size * (2 + sectors)), |
7797 | SEEK_SET) < 0) | |
272f648f | 7798 | return 1; |
c2a1e7da | 7799 | |
f36a9ecd PB |
7800 | if ((unsigned long long)write(fd, buf + sector_size, |
7801 | sector_size * sectors) != sector_size * sectors) | |
272f648f DW |
7802 | return 1; |
7803 | } | |
c2a1e7da | 7804 | |
272f648f | 7805 | /* first block is stored on second to last sector of the disk */ |
f36a9ecd | 7806 | if (lseek64(fd, dsize - (sector_size * 2), SEEK_SET) < 0) |
c2a1e7da DW |
7807 | return 1; |
7808 | ||
f36a9ecd | 7809 | if (write(fd, buf, sector_size) != sector_size) |
c2a1e7da DW |
7810 | return 1; |
7811 | ||
c2a1e7da DW |
7812 | return 0; |
7813 | } | |
7814 | ||
2e735d19 | 7815 | static void imsm_sync_metadata(struct supertype *container) |
845dea95 | 7816 | { |
2e735d19 | 7817 | struct intel_super *super = container->sb; |
c2a1e7da | 7818 | |
1a64be56 | 7819 | dprintf("sync metadata: %d\n", super->updates_pending); |
c2a1e7da DW |
7820 | if (!super->updates_pending) |
7821 | return; | |
7822 | ||
36988a3d | 7823 | write_super_imsm(container, 0); |
c2a1e7da DW |
7824 | |
7825 | super->updates_pending = 0; | |
845dea95 NB |
7826 | } |
7827 | ||
272906ef DW |
7828 | static struct dl *imsm_readd(struct intel_super *super, int idx, struct active_array *a) |
7829 | { | |
7830 | struct imsm_dev *dev = get_imsm_dev(super, a->info.container_member); | |
238c0a71 | 7831 | int i = get_imsm_disk_idx(dev, idx, MAP_X); |
272906ef DW |
7832 | struct dl *dl; |
7833 | ||
7834 | for (dl = super->disks; dl; dl = dl->next) | |
7835 | if (dl->index == i) | |
7836 | break; | |
7837 | ||
25ed7e59 | 7838 | if (dl && is_failed(&dl->disk)) |
272906ef DW |
7839 | dl = NULL; |
7840 | ||
7841 | if (dl) | |
1ade5cc1 | 7842 | dprintf("found %x:%x\n", dl->major, dl->minor); |
272906ef DW |
7843 | |
7844 | return dl; | |
7845 | } | |
7846 | ||
a20d2ba5 | 7847 | static struct dl *imsm_add_spare(struct intel_super *super, int slot, |
8ba77d32 AK |
7848 | struct active_array *a, int activate_new, |
7849 | struct mdinfo *additional_test_list) | |
272906ef DW |
7850 | { |
7851 | struct imsm_dev *dev = get_imsm_dev(super, a->info.container_member); | |
238c0a71 | 7852 | int idx = get_imsm_disk_idx(dev, slot, MAP_X); |
a20d2ba5 DW |
7853 | struct imsm_super *mpb = super->anchor; |
7854 | struct imsm_map *map; | |
272906ef DW |
7855 | unsigned long long pos; |
7856 | struct mdinfo *d; | |
7857 | struct extent *ex; | |
a20d2ba5 | 7858 | int i, j; |
272906ef | 7859 | int found; |
569cc43f DW |
7860 | __u32 array_start = 0; |
7861 | __u32 array_end = 0; | |
272906ef | 7862 | struct dl *dl; |
6c932028 | 7863 | struct mdinfo *test_list; |
272906ef DW |
7864 | |
7865 | for (dl = super->disks; dl; dl = dl->next) { | |
7866 | /* If in this array, skip */ | |
7867 | for (d = a->info.devs ; d ; d = d->next) | |
e553d2a4 DW |
7868 | if (d->state_fd >= 0 && |
7869 | d->disk.major == dl->major && | |
272906ef | 7870 | d->disk.minor == dl->minor) { |
8ba77d32 AK |
7871 | dprintf("%x:%x already in array\n", |
7872 | dl->major, dl->minor); | |
272906ef DW |
7873 | break; |
7874 | } | |
7875 | if (d) | |
7876 | continue; | |
6c932028 AK |
7877 | test_list = additional_test_list; |
7878 | while (test_list) { | |
7879 | if (test_list->disk.major == dl->major && | |
7880 | test_list->disk.minor == dl->minor) { | |
8ba77d32 AK |
7881 | dprintf("%x:%x already in additional test list\n", |
7882 | dl->major, dl->minor); | |
7883 | break; | |
7884 | } | |
6c932028 | 7885 | test_list = test_list->next; |
8ba77d32 | 7886 | } |
6c932028 | 7887 | if (test_list) |
8ba77d32 | 7888 | continue; |
272906ef | 7889 | |
e553d2a4 | 7890 | /* skip in use or failed drives */ |
25ed7e59 | 7891 | if (is_failed(&dl->disk) || idx == dl->index || |
df474657 DW |
7892 | dl->index == -2) { |
7893 | dprintf("%x:%x status (failed: %d index: %d)\n", | |
25ed7e59 | 7894 | dl->major, dl->minor, is_failed(&dl->disk), idx); |
9a1608e5 DW |
7895 | continue; |
7896 | } | |
7897 | ||
a20d2ba5 DW |
7898 | /* skip pure spares when we are looking for partially |
7899 | * assimilated drives | |
7900 | */ | |
7901 | if (dl->index == -1 && !activate_new) | |
7902 | continue; | |
7903 | ||
272906ef | 7904 | /* Does this unused device have the requisite free space? |
a20d2ba5 | 7905 | * It needs to be able to cover all member volumes |
272906ef DW |
7906 | */ |
7907 | ex = get_extents(super, dl); | |
7908 | if (!ex) { | |
7909 | dprintf("cannot get extents\n"); | |
7910 | continue; | |
7911 | } | |
a20d2ba5 DW |
7912 | for (i = 0; i < mpb->num_raid_devs; i++) { |
7913 | dev = get_imsm_dev(super, i); | |
238c0a71 | 7914 | map = get_imsm_map(dev, MAP_0); |
272906ef | 7915 | |
a20d2ba5 DW |
7916 | /* check if this disk is already a member of |
7917 | * this array | |
272906ef | 7918 | */ |
620b1713 | 7919 | if (get_imsm_disk_slot(map, dl->index) >= 0) |
a20d2ba5 DW |
7920 | continue; |
7921 | ||
7922 | found = 0; | |
7923 | j = 0; | |
7924 | pos = 0; | |
5551b113 | 7925 | array_start = pba_of_lba0(map); |
329c8278 | 7926 | array_end = array_start + |
5551b113 | 7927 | blocks_per_member(map) - 1; |
a20d2ba5 DW |
7928 | |
7929 | do { | |
7930 | /* check that we can start at pba_of_lba0 with | |
7931 | * blocks_per_member of space | |
7932 | */ | |
329c8278 | 7933 | if (array_start >= pos && array_end < ex[j].start) { |
a20d2ba5 DW |
7934 | found = 1; |
7935 | break; | |
7936 | } | |
7937 | pos = ex[j].start + ex[j].size; | |
7938 | j++; | |
7939 | } while (ex[j-1].size); | |
7940 | ||
7941 | if (!found) | |
272906ef | 7942 | break; |
a20d2ba5 | 7943 | } |
272906ef DW |
7944 | |
7945 | free(ex); | |
a20d2ba5 | 7946 | if (i < mpb->num_raid_devs) { |
329c8278 DW |
7947 | dprintf("%x:%x does not have %u to %u available\n", |
7948 | dl->major, dl->minor, array_start, array_end); | |
272906ef DW |
7949 | /* No room */ |
7950 | continue; | |
a20d2ba5 DW |
7951 | } |
7952 | return dl; | |
272906ef DW |
7953 | } |
7954 | ||
7955 | return dl; | |
7956 | } | |
7957 | ||
95d07a2c LM |
7958 | static int imsm_rebuild_allowed(struct supertype *cont, int dev_idx, int failed) |
7959 | { | |
7960 | struct imsm_dev *dev2; | |
7961 | struct imsm_map *map; | |
7962 | struct dl *idisk; | |
7963 | int slot; | |
7964 | int idx; | |
7965 | __u8 state; | |
7966 | ||
7967 | dev2 = get_imsm_dev(cont->sb, dev_idx); | |
7968 | if (dev2) { | |
238c0a71 | 7969 | state = imsm_check_degraded(cont->sb, dev2, failed, MAP_0); |
95d07a2c | 7970 | if (state == IMSM_T_STATE_FAILED) { |
238c0a71 | 7971 | map = get_imsm_map(dev2, MAP_0); |
95d07a2c LM |
7972 | if (!map) |
7973 | return 1; | |
7974 | for (slot = 0; slot < map->num_members; slot++) { | |
7975 | /* | |
7976 | * Check if failed disks are deleted from intel | |
7977 | * disk list or are marked to be deleted | |
7978 | */ | |
238c0a71 | 7979 | idx = get_imsm_disk_idx(dev2, slot, MAP_X); |
95d07a2c LM |
7980 | idisk = get_imsm_dl_disk(cont->sb, idx); |
7981 | /* | |
7982 | * Do not rebuild the array if failed disks | |
7983 | * from failed sub-array are not removed from | |
7984 | * container. | |
7985 | */ | |
7986 | if (idisk && | |
7987 | is_failed(&idisk->disk) && | |
7988 | (idisk->action != DISK_REMOVE)) | |
7989 | return 0; | |
7990 | } | |
7991 | } | |
7992 | } | |
7993 | return 1; | |
7994 | } | |
7995 | ||
88758e9d DW |
7996 | static struct mdinfo *imsm_activate_spare(struct active_array *a, |
7997 | struct metadata_update **updates) | |
7998 | { | |
7999 | /** | |
d23fe947 DW |
8000 | * Find a device with unused free space and use it to replace a |
8001 | * failed/vacant region in an array. We replace failed regions one a | |
8002 | * array at a time. The result is that a new spare disk will be added | |
8003 | * to the first failed array and after the monitor has finished | |
8004 | * propagating failures the remainder will be consumed. | |
88758e9d | 8005 | * |
d23fe947 DW |
8006 | * FIXME add a capability for mdmon to request spares from another |
8007 | * container. | |
88758e9d DW |
8008 | */ |
8009 | ||
8010 | struct intel_super *super = a->container->sb; | |
88758e9d | 8011 | int inst = a->info.container_member; |
949c47a0 | 8012 | struct imsm_dev *dev = get_imsm_dev(super, inst); |
238c0a71 | 8013 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
88758e9d DW |
8014 | int failed = a->info.array.raid_disks; |
8015 | struct mdinfo *rv = NULL; | |
8016 | struct mdinfo *d; | |
8017 | struct mdinfo *di; | |
8018 | struct metadata_update *mu; | |
8019 | struct dl *dl; | |
8020 | struct imsm_update_activate_spare *u; | |
8021 | int num_spares = 0; | |
8022 | int i; | |
95d07a2c | 8023 | int allowed; |
88758e9d DW |
8024 | |
8025 | for (d = a->info.devs ; d ; d = d->next) { | |
8026 | if ((d->curr_state & DS_FAULTY) && | |
8027 | d->state_fd >= 0) | |
8028 | /* wait for Removal to happen */ | |
8029 | return NULL; | |
8030 | if (d->state_fd >= 0) | |
8031 | failed--; | |
8032 | } | |
8033 | ||
8034 | dprintf("imsm: activate spare: inst=%d failed=%d (%d) level=%d\n", | |
8035 | inst, failed, a->info.array.raid_disks, a->info.array.level); | |
1af97990 | 8036 | |
e2962bfc AK |
8037 | if (imsm_reshape_blocks_arrays_changes(super)) |
8038 | return NULL; | |
1af97990 | 8039 | |
fc8ca064 AK |
8040 | /* Cannot activate another spare if rebuild is in progress already |
8041 | */ | |
8042 | if (is_rebuilding(dev)) { | |
7a862a02 | 8043 | dprintf("imsm: No spare activation allowed. Rebuild in progress already.\n"); |
fc8ca064 AK |
8044 | return NULL; |
8045 | } | |
8046 | ||
89c67882 AK |
8047 | if (a->info.array.level == 4) |
8048 | /* No repair for takeovered array | |
8049 | * imsm doesn't support raid4 | |
8050 | */ | |
8051 | return NULL; | |
8052 | ||
3b451610 AK |
8053 | if (imsm_check_degraded(super, dev, failed, MAP_0) != |
8054 | IMSM_T_STATE_DEGRADED) | |
88758e9d DW |
8055 | return NULL; |
8056 | ||
83ca7d45 AP |
8057 | if (get_imsm_map(dev, MAP_0)->map_state == IMSM_T_STATE_UNINITIALIZED) { |
8058 | dprintf("imsm: No spare activation allowed. Volume is not initialized.\n"); | |
8059 | return NULL; | |
8060 | } | |
8061 | ||
95d07a2c LM |
8062 | /* |
8063 | * If there are any failed disks check state of the other volume. | |
8064 | * Block rebuild if the another one is failed until failed disks | |
8065 | * are removed from container. | |
8066 | */ | |
8067 | if (failed) { | |
7a862a02 | 8068 | dprintf("found failed disks in %.*s, check if there anotherfailed sub-array.\n", |
c4acd1e5 | 8069 | MAX_RAID_SERIAL_LEN, dev->volume); |
95d07a2c LM |
8070 | /* check if states of the other volumes allow for rebuild */ |
8071 | for (i = 0; i < super->anchor->num_raid_devs; i++) { | |
8072 | if (i != inst) { | |
8073 | allowed = imsm_rebuild_allowed(a->container, | |
8074 | i, failed); | |
8075 | if (!allowed) | |
8076 | return NULL; | |
8077 | } | |
8078 | } | |
8079 | } | |
8080 | ||
88758e9d | 8081 | /* For each slot, if it is not working, find a spare */ |
88758e9d DW |
8082 | for (i = 0; i < a->info.array.raid_disks; i++) { |
8083 | for (d = a->info.devs ; d ; d = d->next) | |
8084 | if (d->disk.raid_disk == i) | |
8085 | break; | |
8086 | dprintf("found %d: %p %x\n", i, d, d?d->curr_state:0); | |
8087 | if (d && (d->state_fd >= 0)) | |
8088 | continue; | |
8089 | ||
272906ef | 8090 | /* |
a20d2ba5 DW |
8091 | * OK, this device needs recovery. Try to re-add the |
8092 | * previous occupant of this slot, if this fails see if | |
8093 | * we can continue the assimilation of a spare that was | |
8094 | * partially assimilated, finally try to activate a new | |
8095 | * spare. | |
272906ef DW |
8096 | */ |
8097 | dl = imsm_readd(super, i, a); | |
8098 | if (!dl) | |
b303fe21 | 8099 | dl = imsm_add_spare(super, i, a, 0, rv); |
a20d2ba5 | 8100 | if (!dl) |
b303fe21 | 8101 | dl = imsm_add_spare(super, i, a, 1, rv); |
272906ef DW |
8102 | if (!dl) |
8103 | continue; | |
1011e834 | 8104 | |
272906ef | 8105 | /* found a usable disk with enough space */ |
503975b9 | 8106 | di = xcalloc(1, sizeof(*di)); |
272906ef DW |
8107 | |
8108 | /* dl->index will be -1 in the case we are activating a | |
8109 | * pristine spare. imsm_process_update() will create a | |
8110 | * new index in this case. Once a disk is found to be | |
8111 | * failed in all member arrays it is kicked from the | |
8112 | * metadata | |
8113 | */ | |
8114 | di->disk.number = dl->index; | |
d23fe947 | 8115 | |
272906ef DW |
8116 | /* (ab)use di->devs to store a pointer to the device |
8117 | * we chose | |
8118 | */ | |
8119 | di->devs = (struct mdinfo *) dl; | |
8120 | ||
8121 | di->disk.raid_disk = i; | |
8122 | di->disk.major = dl->major; | |
8123 | di->disk.minor = dl->minor; | |
8124 | di->disk.state = 0; | |
d23534e4 | 8125 | di->recovery_start = 0; |
5551b113 | 8126 | di->data_offset = pba_of_lba0(map); |
272906ef DW |
8127 | di->component_size = a->info.component_size; |
8128 | di->container_member = inst; | |
148acb7b | 8129 | super->random = random32(); |
272906ef DW |
8130 | di->next = rv; |
8131 | rv = di; | |
8132 | num_spares++; | |
8133 | dprintf("%x:%x to be %d at %llu\n", dl->major, dl->minor, | |
8134 | i, di->data_offset); | |
88758e9d DW |
8135 | } |
8136 | ||
8137 | if (!rv) | |
8138 | /* No spares found */ | |
8139 | return rv; | |
8140 | /* Now 'rv' has a list of devices to return. | |
8141 | * Create a metadata_update record to update the | |
8142 | * disk_ord_tbl for the array | |
8143 | */ | |
503975b9 | 8144 | mu = xmalloc(sizeof(*mu)); |
1011e834 | 8145 | mu->buf = xcalloc(num_spares, |
503975b9 | 8146 | sizeof(struct imsm_update_activate_spare)); |
88758e9d | 8147 | mu->space = NULL; |
cb23f1f4 | 8148 | mu->space_list = NULL; |
88758e9d DW |
8149 | mu->len = sizeof(struct imsm_update_activate_spare) * num_spares; |
8150 | mu->next = *updates; | |
8151 | u = (struct imsm_update_activate_spare *) mu->buf; | |
8152 | ||
8153 | for (di = rv ; di ; di = di->next) { | |
8154 | u->type = update_activate_spare; | |
d23fe947 DW |
8155 | u->dl = (struct dl *) di->devs; |
8156 | di->devs = NULL; | |
88758e9d DW |
8157 | u->slot = di->disk.raid_disk; |
8158 | u->array = inst; | |
8159 | u->next = u + 1; | |
8160 | u++; | |
8161 | } | |
8162 | (u-1)->next = NULL; | |
8163 | *updates = mu; | |
8164 | ||
8165 | return rv; | |
8166 | } | |
8167 | ||
54c2c1ea | 8168 | static int disks_overlap(struct intel_super *super, int idx, struct imsm_update_create_array *u) |
8273f55e | 8169 | { |
54c2c1ea | 8170 | struct imsm_dev *dev = get_imsm_dev(super, idx); |
238c0a71 AK |
8171 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
8172 | struct imsm_map *new_map = get_imsm_map(&u->dev, MAP_0); | |
54c2c1ea DW |
8173 | struct disk_info *inf = get_disk_info(u); |
8174 | struct imsm_disk *disk; | |
8273f55e DW |
8175 | int i; |
8176 | int j; | |
8273f55e | 8177 | |
54c2c1ea | 8178 | for (i = 0; i < map->num_members; i++) { |
238c0a71 | 8179 | disk = get_imsm_disk(super, get_imsm_disk_idx(dev, i, MAP_X)); |
54c2c1ea DW |
8180 | for (j = 0; j < new_map->num_members; j++) |
8181 | if (serialcmp(disk->serial, inf[j].serial) == 0) | |
8273f55e DW |
8182 | return 1; |
8183 | } | |
8184 | ||
8185 | return 0; | |
8186 | } | |
8187 | ||
1a64be56 LM |
8188 | static struct dl *get_disk_super(struct intel_super *super, int major, int minor) |
8189 | { | |
594dc1b8 JS |
8190 | struct dl *dl; |
8191 | ||
1a64be56 | 8192 | for (dl = super->disks; dl; dl = dl->next) |
089f9d79 | 8193 | if (dl->major == major && dl->minor == minor) |
1a64be56 LM |
8194 | return dl; |
8195 | return NULL; | |
8196 | } | |
8197 | ||
8198 | static int remove_disk_super(struct intel_super *super, int major, int minor) | |
8199 | { | |
594dc1b8 | 8200 | struct dl *prev; |
1a64be56 LM |
8201 | struct dl *dl; |
8202 | ||
8203 | prev = NULL; | |
8204 | for (dl = super->disks; dl; dl = dl->next) { | |
089f9d79 | 8205 | if (dl->major == major && dl->minor == minor) { |
1a64be56 LM |
8206 | /* remove */ |
8207 | if (prev) | |
8208 | prev->next = dl->next; | |
8209 | else | |
8210 | super->disks = dl->next; | |
8211 | dl->next = NULL; | |
8212 | __free_imsm_disk(dl); | |
1ade5cc1 | 8213 | dprintf("removed %x:%x\n", major, minor); |
1a64be56 LM |
8214 | break; |
8215 | } | |
8216 | prev = dl; | |
8217 | } | |
8218 | return 0; | |
8219 | } | |
8220 | ||
f21e18ca | 8221 | static void imsm_delete(struct intel_super *super, struct dl **dlp, unsigned index); |
ae6aad82 | 8222 | |
1a64be56 LM |
8223 | static int add_remove_disk_update(struct intel_super *super) |
8224 | { | |
8225 | int check_degraded = 0; | |
594dc1b8 JS |
8226 | struct dl *disk; |
8227 | ||
1a64be56 LM |
8228 | /* add/remove some spares to/from the metadata/contrainer */ |
8229 | while (super->disk_mgmt_list) { | |
8230 | struct dl *disk_cfg; | |
8231 | ||
8232 | disk_cfg = super->disk_mgmt_list; | |
8233 | super->disk_mgmt_list = disk_cfg->next; | |
8234 | disk_cfg->next = NULL; | |
8235 | ||
8236 | if (disk_cfg->action == DISK_ADD) { | |
8237 | disk_cfg->next = super->disks; | |
8238 | super->disks = disk_cfg; | |
8239 | check_degraded = 1; | |
1ade5cc1 N |
8240 | dprintf("added %x:%x\n", |
8241 | disk_cfg->major, disk_cfg->minor); | |
1a64be56 LM |
8242 | } else if (disk_cfg->action == DISK_REMOVE) { |
8243 | dprintf("Disk remove action processed: %x.%x\n", | |
8244 | disk_cfg->major, disk_cfg->minor); | |
8245 | disk = get_disk_super(super, | |
8246 | disk_cfg->major, | |
8247 | disk_cfg->minor); | |
8248 | if (disk) { | |
8249 | /* store action status */ | |
8250 | disk->action = DISK_REMOVE; | |
8251 | /* remove spare disks only */ | |
8252 | if (disk->index == -1) { | |
8253 | remove_disk_super(super, | |
8254 | disk_cfg->major, | |
8255 | disk_cfg->minor); | |
8256 | } | |
8257 | } | |
8258 | /* release allocate disk structure */ | |
8259 | __free_imsm_disk(disk_cfg); | |
8260 | } | |
8261 | } | |
8262 | return check_degraded; | |
8263 | } | |
8264 | ||
a29911da PC |
8265 | static int apply_reshape_migration_update(struct imsm_update_reshape_migration *u, |
8266 | struct intel_super *super, | |
8267 | void ***space_list) | |
8268 | { | |
8269 | struct intel_dev *id; | |
8270 | void **tofree = NULL; | |
8271 | int ret_val = 0; | |
8272 | ||
1ade5cc1 | 8273 | dprintf("(enter)\n"); |
089f9d79 | 8274 | if (u->subdev < 0 || u->subdev > 1) { |
a29911da PC |
8275 | dprintf("imsm: Error: Wrong subdev: %i\n", u->subdev); |
8276 | return ret_val; | |
8277 | } | |
089f9d79 | 8278 | if (space_list == NULL || *space_list == NULL) { |
a29911da PC |
8279 | dprintf("imsm: Error: Memory is not allocated\n"); |
8280 | return ret_val; | |
8281 | } | |
8282 | ||
8283 | for (id = super->devlist ; id; id = id->next) { | |
8284 | if (id->index == (unsigned)u->subdev) { | |
8285 | struct imsm_dev *dev = get_imsm_dev(super, u->subdev); | |
8286 | struct imsm_map *map; | |
8287 | struct imsm_dev *new_dev = | |
8288 | (struct imsm_dev *)*space_list; | |
238c0a71 | 8289 | struct imsm_map *migr_map = get_imsm_map(dev, MAP_1); |
a29911da PC |
8290 | int to_state; |
8291 | struct dl *new_disk; | |
8292 | ||
8293 | if (new_dev == NULL) | |
8294 | return ret_val; | |
8295 | *space_list = **space_list; | |
8296 | memcpy(new_dev, dev, sizeof_imsm_dev(dev, 0)); | |
238c0a71 | 8297 | map = get_imsm_map(new_dev, MAP_0); |
a29911da PC |
8298 | if (migr_map) { |
8299 | dprintf("imsm: Error: migration in progress"); | |
8300 | return ret_val; | |
8301 | } | |
8302 | ||
8303 | to_state = map->map_state; | |
8304 | if ((u->new_level == 5) && (map->raid_level == 0)) { | |
8305 | map->num_members++; | |
8306 | /* this should not happen */ | |
8307 | if (u->new_disks[0] < 0) { | |
8308 | map->failed_disk_num = | |
8309 | map->num_members - 1; | |
8310 | to_state = IMSM_T_STATE_DEGRADED; | |
8311 | } else | |
8312 | to_state = IMSM_T_STATE_NORMAL; | |
8313 | } | |
8e59f3d8 | 8314 | migrate(new_dev, super, to_state, MIGR_GEN_MIGR); |
a29911da PC |
8315 | if (u->new_level > -1) |
8316 | map->raid_level = u->new_level; | |
238c0a71 | 8317 | migr_map = get_imsm_map(new_dev, MAP_1); |
a29911da PC |
8318 | if ((u->new_level == 5) && |
8319 | (migr_map->raid_level == 0)) { | |
8320 | int ord = map->num_members - 1; | |
8321 | migr_map->num_members--; | |
8322 | if (u->new_disks[0] < 0) | |
8323 | ord |= IMSM_ORD_REBUILD; | |
8324 | set_imsm_ord_tbl_ent(map, | |
8325 | map->num_members - 1, | |
8326 | ord); | |
8327 | } | |
8328 | id->dev = new_dev; | |
8329 | tofree = (void **)dev; | |
8330 | ||
4bba0439 PC |
8331 | /* update chunk size |
8332 | */ | |
06fb291a PB |
8333 | if (u->new_chunksize > 0) { |
8334 | unsigned long long num_data_stripes; | |
8335 | int used_disks = | |
8336 | imsm_num_data_members(dev, MAP_0); | |
8337 | ||
8338 | if (used_disks == 0) | |
8339 | return ret_val; | |
8340 | ||
4bba0439 PC |
8341 | map->blocks_per_strip = |
8342 | __cpu_to_le16(u->new_chunksize * 2); | |
06fb291a PB |
8343 | num_data_stripes = |
8344 | (join_u32(dev->size_low, dev->size_high) | |
8345 | / used_disks); | |
8346 | num_data_stripes /= map->blocks_per_strip; | |
8347 | num_data_stripes /= map->num_domains; | |
8348 | set_num_data_stripes(map, num_data_stripes); | |
8349 | } | |
4bba0439 | 8350 | |
a29911da PC |
8351 | /* add disk |
8352 | */ | |
089f9d79 JS |
8353 | if (u->new_level != 5 || migr_map->raid_level != 0 || |
8354 | migr_map->raid_level == map->raid_level) | |
a29911da PC |
8355 | goto skip_disk_add; |
8356 | ||
8357 | if (u->new_disks[0] >= 0) { | |
8358 | /* use passes spare | |
8359 | */ | |
8360 | new_disk = get_disk_super(super, | |
8361 | major(u->new_disks[0]), | |
8362 | minor(u->new_disks[0])); | |
7a862a02 | 8363 | dprintf("imsm: new disk for reshape is: %i:%i (%p, index = %i)\n", |
a29911da PC |
8364 | major(u->new_disks[0]), |
8365 | minor(u->new_disks[0]), | |
8366 | new_disk, new_disk->index); | |
8367 | if (new_disk == NULL) | |
8368 | goto error_disk_add; | |
8369 | ||
8370 | new_disk->index = map->num_members - 1; | |
8371 | /* slot to fill in autolayout | |
8372 | */ | |
8373 | new_disk->raiddisk = new_disk->index; | |
8374 | new_disk->disk.status |= CONFIGURED_DISK; | |
8375 | new_disk->disk.status &= ~SPARE_DISK; | |
8376 | } else | |
8377 | goto error_disk_add; | |
8378 | ||
8379 | skip_disk_add: | |
8380 | *tofree = *space_list; | |
8381 | /* calculate new size | |
8382 | */ | |
f3871fdc | 8383 | imsm_set_array_size(new_dev, -1); |
a29911da PC |
8384 | |
8385 | ret_val = 1; | |
8386 | } | |
8387 | } | |
8388 | ||
8389 | if (tofree) | |
8390 | *space_list = tofree; | |
8391 | return ret_val; | |
8392 | ||
8393 | error_disk_add: | |
8394 | dprintf("Error: imsm: Cannot find disk.\n"); | |
8395 | return ret_val; | |
8396 | } | |
8397 | ||
f3871fdc AK |
8398 | static int apply_size_change_update(struct imsm_update_size_change *u, |
8399 | struct intel_super *super) | |
8400 | { | |
8401 | struct intel_dev *id; | |
8402 | int ret_val = 0; | |
8403 | ||
1ade5cc1 | 8404 | dprintf("(enter)\n"); |
089f9d79 | 8405 | if (u->subdev < 0 || u->subdev > 1) { |
f3871fdc AK |
8406 | dprintf("imsm: Error: Wrong subdev: %i\n", u->subdev); |
8407 | return ret_val; | |
8408 | } | |
8409 | ||
8410 | for (id = super->devlist ; id; id = id->next) { | |
8411 | if (id->index == (unsigned)u->subdev) { | |
8412 | struct imsm_dev *dev = get_imsm_dev(super, u->subdev); | |
8413 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
8414 | int used_disks = imsm_num_data_members(dev, MAP_0); | |
8415 | unsigned long long blocks_per_member; | |
06fb291a | 8416 | unsigned long long num_data_stripes; |
f3871fdc AK |
8417 | |
8418 | /* calculate new size | |
8419 | */ | |
8420 | blocks_per_member = u->new_size / used_disks; | |
06fb291a PB |
8421 | num_data_stripes = blocks_per_member / |
8422 | map->blocks_per_strip; | |
8423 | num_data_stripes /= map->num_domains; | |
8424 | dprintf("(size: %llu, blocks per member: %llu, num_data_stipes: %llu)\n", | |
8425 | u->new_size, blocks_per_member, | |
8426 | num_data_stripes); | |
f3871fdc | 8427 | set_blocks_per_member(map, blocks_per_member); |
06fb291a | 8428 | set_num_data_stripes(map, num_data_stripes); |
f3871fdc AK |
8429 | imsm_set_array_size(dev, u->new_size); |
8430 | ||
8431 | ret_val = 1; | |
8432 | break; | |
8433 | } | |
8434 | } | |
8435 | ||
8436 | return ret_val; | |
8437 | } | |
8438 | ||
061d7da3 | 8439 | static int apply_update_activate_spare(struct imsm_update_activate_spare *u, |
ca9de185 | 8440 | struct intel_super *super, |
061d7da3 LO |
8441 | struct active_array *active_array) |
8442 | { | |
8443 | struct imsm_super *mpb = super->anchor; | |
8444 | struct imsm_dev *dev = get_imsm_dev(super, u->array); | |
238c0a71 | 8445 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
061d7da3 LO |
8446 | struct imsm_map *migr_map; |
8447 | struct active_array *a; | |
8448 | struct imsm_disk *disk; | |
8449 | __u8 to_state; | |
8450 | struct dl *dl; | |
8451 | unsigned int found; | |
8452 | int failed; | |
5961eeec | 8453 | int victim; |
061d7da3 | 8454 | int i; |
5961eeec | 8455 | int second_map_created = 0; |
061d7da3 | 8456 | |
5961eeec | 8457 | for (; u; u = u->next) { |
238c0a71 | 8458 | victim = get_imsm_disk_idx(dev, u->slot, MAP_X); |
061d7da3 | 8459 | |
5961eeec | 8460 | if (victim < 0) |
8461 | return 0; | |
061d7da3 | 8462 | |
5961eeec | 8463 | for (dl = super->disks; dl; dl = dl->next) |
8464 | if (dl == u->dl) | |
8465 | break; | |
061d7da3 | 8466 | |
5961eeec | 8467 | if (!dl) { |
7a862a02 | 8468 | pr_err("error: imsm_activate_spare passed an unknown disk (index: %d)\n", |
5961eeec | 8469 | u->dl->index); |
8470 | return 0; | |
8471 | } | |
061d7da3 | 8472 | |
5961eeec | 8473 | /* count failures (excluding rebuilds and the victim) |
8474 | * to determine map[0] state | |
8475 | */ | |
8476 | failed = 0; | |
8477 | for (i = 0; i < map->num_members; i++) { | |
8478 | if (i == u->slot) | |
8479 | continue; | |
8480 | disk = get_imsm_disk(super, | |
238c0a71 | 8481 | get_imsm_disk_idx(dev, i, MAP_X)); |
5961eeec | 8482 | if (!disk || is_failed(disk)) |
8483 | failed++; | |
8484 | } | |
061d7da3 | 8485 | |
5961eeec | 8486 | /* adding a pristine spare, assign a new index */ |
8487 | if (dl->index < 0) { | |
8488 | dl->index = super->anchor->num_disks; | |
8489 | super->anchor->num_disks++; | |
8490 | } | |
8491 | disk = &dl->disk; | |
8492 | disk->status |= CONFIGURED_DISK; | |
8493 | disk->status &= ~SPARE_DISK; | |
8494 | ||
8495 | /* mark rebuild */ | |
238c0a71 | 8496 | to_state = imsm_check_degraded(super, dev, failed, MAP_0); |
5961eeec | 8497 | if (!second_map_created) { |
8498 | second_map_created = 1; | |
8499 | map->map_state = IMSM_T_STATE_DEGRADED; | |
8500 | migrate(dev, super, to_state, MIGR_REBUILD); | |
8501 | } else | |
8502 | map->map_state = to_state; | |
238c0a71 | 8503 | migr_map = get_imsm_map(dev, MAP_1); |
5961eeec | 8504 | set_imsm_ord_tbl_ent(map, u->slot, dl->index); |
8505 | set_imsm_ord_tbl_ent(migr_map, u->slot, | |
8506 | dl->index | IMSM_ORD_REBUILD); | |
8507 | ||
8508 | /* update the family_num to mark a new container | |
8509 | * generation, being careful to record the existing | |
8510 | * family_num in orig_family_num to clean up after | |
8511 | * earlier mdadm versions that neglected to set it. | |
8512 | */ | |
8513 | if (mpb->orig_family_num == 0) | |
8514 | mpb->orig_family_num = mpb->family_num; | |
8515 | mpb->family_num += super->random; | |
8516 | ||
8517 | /* count arrays using the victim in the metadata */ | |
8518 | found = 0; | |
8519 | for (a = active_array; a ; a = a->next) { | |
8520 | dev = get_imsm_dev(super, a->info.container_member); | |
238c0a71 | 8521 | map = get_imsm_map(dev, MAP_0); |
061d7da3 | 8522 | |
5961eeec | 8523 | if (get_imsm_disk_slot(map, victim) >= 0) |
8524 | found++; | |
8525 | } | |
061d7da3 | 8526 | |
5961eeec | 8527 | /* delete the victim if it is no longer being |
8528 | * utilized anywhere | |
061d7da3 | 8529 | */ |
5961eeec | 8530 | if (!found) { |
8531 | struct dl **dlp; | |
061d7da3 | 8532 | |
5961eeec | 8533 | /* We know that 'manager' isn't touching anything, |
8534 | * so it is safe to delete | |
8535 | */ | |
8536 | for (dlp = &super->disks; *dlp; dlp = &(*dlp)->next) | |
061d7da3 LO |
8537 | if ((*dlp)->index == victim) |
8538 | break; | |
5961eeec | 8539 | |
8540 | /* victim may be on the missing list */ | |
8541 | if (!*dlp) | |
8542 | for (dlp = &super->missing; *dlp; | |
8543 | dlp = &(*dlp)->next) | |
8544 | if ((*dlp)->index == victim) | |
8545 | break; | |
8546 | imsm_delete(super, dlp, victim); | |
8547 | } | |
061d7da3 LO |
8548 | } |
8549 | ||
8550 | return 1; | |
8551 | } | |
a29911da | 8552 | |
2e5dc010 N |
8553 | static int apply_reshape_container_disks_update(struct imsm_update_reshape *u, |
8554 | struct intel_super *super, | |
8555 | void ***space_list) | |
8556 | { | |
8557 | struct dl *new_disk; | |
8558 | struct intel_dev *id; | |
8559 | int i; | |
8560 | int delta_disks = u->new_raid_disks - u->old_raid_disks; | |
ee4beede | 8561 | int disk_count = u->old_raid_disks; |
2e5dc010 N |
8562 | void **tofree = NULL; |
8563 | int devices_to_reshape = 1; | |
8564 | struct imsm_super *mpb = super->anchor; | |
8565 | int ret_val = 0; | |
d098291a | 8566 | unsigned int dev_id; |
2e5dc010 | 8567 | |
1ade5cc1 | 8568 | dprintf("(enter)\n"); |
2e5dc010 N |
8569 | |
8570 | /* enable spares to use in array */ | |
8571 | for (i = 0; i < delta_disks; i++) { | |
8572 | new_disk = get_disk_super(super, | |
8573 | major(u->new_disks[i]), | |
8574 | minor(u->new_disks[i])); | |
7a862a02 | 8575 | dprintf("imsm: new disk for reshape is: %i:%i (%p, index = %i)\n", |
2e5dc010 N |
8576 | major(u->new_disks[i]), minor(u->new_disks[i]), |
8577 | new_disk, new_disk->index); | |
089f9d79 JS |
8578 | if (new_disk == NULL || |
8579 | (new_disk->index >= 0 && | |
8580 | new_disk->index < u->old_raid_disks)) | |
2e5dc010 | 8581 | goto update_reshape_exit; |
ee4beede | 8582 | new_disk->index = disk_count++; |
2e5dc010 N |
8583 | /* slot to fill in autolayout |
8584 | */ | |
8585 | new_disk->raiddisk = new_disk->index; | |
8586 | new_disk->disk.status |= | |
8587 | CONFIGURED_DISK; | |
8588 | new_disk->disk.status &= ~SPARE_DISK; | |
8589 | } | |
8590 | ||
ed7333bd AK |
8591 | dprintf("imsm: volume set mpb->num_raid_devs = %i\n", |
8592 | mpb->num_raid_devs); | |
2e5dc010 N |
8593 | /* manage changes in volume |
8594 | */ | |
d098291a | 8595 | for (dev_id = 0; dev_id < mpb->num_raid_devs; dev_id++) { |
2e5dc010 N |
8596 | void **sp = *space_list; |
8597 | struct imsm_dev *newdev; | |
8598 | struct imsm_map *newmap, *oldmap; | |
8599 | ||
d098291a AK |
8600 | for (id = super->devlist ; id; id = id->next) { |
8601 | if (id->index == dev_id) | |
8602 | break; | |
8603 | } | |
8604 | if (id == NULL) | |
8605 | break; | |
2e5dc010 N |
8606 | if (!sp) |
8607 | continue; | |
8608 | *space_list = *sp; | |
8609 | newdev = (void*)sp; | |
8610 | /* Copy the dev, but not (all of) the map */ | |
8611 | memcpy(newdev, id->dev, sizeof(*newdev)); | |
238c0a71 AK |
8612 | oldmap = get_imsm_map(id->dev, MAP_0); |
8613 | newmap = get_imsm_map(newdev, MAP_0); | |
2e5dc010 N |
8614 | /* Copy the current map */ |
8615 | memcpy(newmap, oldmap, sizeof_imsm_map(oldmap)); | |
8616 | /* update one device only | |
8617 | */ | |
8618 | if (devices_to_reshape) { | |
ed7333bd AK |
8619 | dprintf("imsm: modifying subdev: %i\n", |
8620 | id->index); | |
2e5dc010 N |
8621 | devices_to_reshape--; |
8622 | newdev->vol.migr_state = 1; | |
8623 | newdev->vol.curr_migr_unit = 0; | |
ea672ee1 | 8624 | set_migr_type(newdev, MIGR_GEN_MIGR); |
2e5dc010 N |
8625 | newmap->num_members = u->new_raid_disks; |
8626 | for (i = 0; i < delta_disks; i++) { | |
8627 | set_imsm_ord_tbl_ent(newmap, | |
8628 | u->old_raid_disks + i, | |
8629 | u->old_raid_disks + i); | |
8630 | } | |
8631 | /* New map is correct, now need to save old map | |
8632 | */ | |
238c0a71 | 8633 | newmap = get_imsm_map(newdev, MAP_1); |
2e5dc010 N |
8634 | memcpy(newmap, oldmap, sizeof_imsm_map(oldmap)); |
8635 | ||
f3871fdc | 8636 | imsm_set_array_size(newdev, -1); |
2e5dc010 N |
8637 | } |
8638 | ||
8639 | sp = (void **)id->dev; | |
8640 | id->dev = newdev; | |
8641 | *sp = tofree; | |
8642 | tofree = sp; | |
8e59f3d8 AK |
8643 | |
8644 | /* Clear migration record */ | |
8645 | memset(super->migr_rec, 0, sizeof(struct migr_record)); | |
2e5dc010 | 8646 | } |
819bc634 AK |
8647 | if (tofree) |
8648 | *space_list = tofree; | |
2e5dc010 N |
8649 | ret_val = 1; |
8650 | ||
8651 | update_reshape_exit: | |
8652 | ||
8653 | return ret_val; | |
8654 | } | |
8655 | ||
bb025c2f | 8656 | static int apply_takeover_update(struct imsm_update_takeover *u, |
8ca6df95 KW |
8657 | struct intel_super *super, |
8658 | void ***space_list) | |
bb025c2f KW |
8659 | { |
8660 | struct imsm_dev *dev = NULL; | |
8ca6df95 KW |
8661 | struct intel_dev *dv; |
8662 | struct imsm_dev *dev_new; | |
bb025c2f KW |
8663 | struct imsm_map *map; |
8664 | struct dl *dm, *du; | |
8ca6df95 | 8665 | int i; |
bb025c2f KW |
8666 | |
8667 | for (dv = super->devlist; dv; dv = dv->next) | |
8668 | if (dv->index == (unsigned int)u->subarray) { | |
8669 | dev = dv->dev; | |
8670 | break; | |
8671 | } | |
8672 | ||
8673 | if (dev == NULL) | |
8674 | return 0; | |
8675 | ||
238c0a71 | 8676 | map = get_imsm_map(dev, MAP_0); |
bb025c2f KW |
8677 | |
8678 | if (u->direction == R10_TO_R0) { | |
06fb291a PB |
8679 | unsigned long long num_data_stripes; |
8680 | ||
8681 | map->num_domains = 1; | |
8682 | num_data_stripes = blocks_per_member(map); | |
8683 | num_data_stripes /= map->blocks_per_strip; | |
8684 | num_data_stripes /= map->num_domains; | |
8685 | set_num_data_stripes(map, num_data_stripes); | |
8686 | ||
43d5ec18 | 8687 | /* Number of failed disks must be half of initial disk number */ |
3b451610 AK |
8688 | if (imsm_count_failed(super, dev, MAP_0) != |
8689 | (map->num_members / 2)) | |
43d5ec18 KW |
8690 | return 0; |
8691 | ||
bb025c2f KW |
8692 | /* iterate through devices to mark removed disks as spare */ |
8693 | for (dm = super->disks; dm; dm = dm->next) { | |
8694 | if (dm->disk.status & FAILED_DISK) { | |
8695 | int idx = dm->index; | |
8696 | /* update indexes on the disk list */ | |
8697 | /* FIXME this loop-with-the-loop looks wrong, I'm not convinced | |
8698 | the index values will end up being correct.... NB */ | |
8699 | for (du = super->disks; du; du = du->next) | |
8700 | if (du->index > idx) | |
8701 | du->index--; | |
8702 | /* mark as spare disk */ | |
a8619d23 | 8703 | mark_spare(dm); |
bb025c2f KW |
8704 | } |
8705 | } | |
bb025c2f KW |
8706 | /* update map */ |
8707 | map->num_members = map->num_members / 2; | |
8708 | map->map_state = IMSM_T_STATE_NORMAL; | |
8709 | map->num_domains = 1; | |
8710 | map->raid_level = 0; | |
8711 | map->failed_disk_num = -1; | |
8712 | } | |
8713 | ||
8ca6df95 KW |
8714 | if (u->direction == R0_TO_R10) { |
8715 | void **space; | |
8716 | /* update slots in current disk list */ | |
8717 | for (dm = super->disks; dm; dm = dm->next) { | |
8718 | if (dm->index >= 0) | |
8719 | dm->index *= 2; | |
8720 | } | |
8721 | /* create new *missing* disks */ | |
8722 | for (i = 0; i < map->num_members; i++) { | |
8723 | space = *space_list; | |
8724 | if (!space) | |
8725 | continue; | |
8726 | *space_list = *space; | |
8727 | du = (void *)space; | |
8728 | memcpy(du, super->disks, sizeof(*du)); | |
8ca6df95 KW |
8729 | du->fd = -1; |
8730 | du->minor = 0; | |
8731 | du->major = 0; | |
8732 | du->index = (i * 2) + 1; | |
8733 | sprintf((char *)du->disk.serial, | |
8734 | " MISSING_%d", du->index); | |
8735 | sprintf((char *)du->serial, | |
8736 | "MISSING_%d", du->index); | |
8737 | du->next = super->missing; | |
8738 | super->missing = du; | |
8739 | } | |
8740 | /* create new dev and map */ | |
8741 | space = *space_list; | |
8742 | if (!space) | |
8743 | return 0; | |
8744 | *space_list = *space; | |
8745 | dev_new = (void *)space; | |
8746 | memcpy(dev_new, dev, sizeof(*dev)); | |
8747 | /* update new map */ | |
238c0a71 | 8748 | map = get_imsm_map(dev_new, MAP_0); |
8ca6df95 | 8749 | map->num_members = map->num_members * 2; |
1a2487c2 | 8750 | map->map_state = IMSM_T_STATE_DEGRADED; |
8ca6df95 KW |
8751 | map->num_domains = 2; |
8752 | map->raid_level = 1; | |
8753 | /* replace dev<->dev_new */ | |
8754 | dv->dev = dev_new; | |
8755 | } | |
bb025c2f KW |
8756 | /* update disk order table */ |
8757 | for (du = super->disks; du; du = du->next) | |
8758 | if (du->index >= 0) | |
8759 | set_imsm_ord_tbl_ent(map, du->index, du->index); | |
8ca6df95 | 8760 | for (du = super->missing; du; du = du->next) |
1a2487c2 KW |
8761 | if (du->index >= 0) { |
8762 | set_imsm_ord_tbl_ent(map, du->index, du->index); | |
e4c72d1d | 8763 | mark_missing(dv->dev, &du->disk, du->index); |
1a2487c2 | 8764 | } |
bb025c2f KW |
8765 | |
8766 | return 1; | |
8767 | } | |
8768 | ||
e8319a19 DW |
8769 | static void imsm_process_update(struct supertype *st, |
8770 | struct metadata_update *update) | |
8771 | { | |
8772 | /** | |
8773 | * crack open the metadata_update envelope to find the update record | |
8774 | * update can be one of: | |
d195167d AK |
8775 | * update_reshape_container_disks - all the arrays in the container |
8776 | * are being reshaped to have more devices. We need to mark | |
8777 | * the arrays for general migration and convert selected spares | |
8778 | * into active devices. | |
8779 | * update_activate_spare - a spare device has replaced a failed | |
1011e834 N |
8780 | * device in an array, update the disk_ord_tbl. If this disk is |
8781 | * present in all member arrays then also clear the SPARE_DISK | |
8782 | * flag | |
d195167d AK |
8783 | * update_create_array |
8784 | * update_kill_array | |
8785 | * update_rename_array | |
8786 | * update_add_remove_disk | |
e8319a19 DW |
8787 | */ |
8788 | struct intel_super *super = st->sb; | |
4d7b1503 | 8789 | struct imsm_super *mpb; |
e8319a19 DW |
8790 | enum imsm_update_type type = *(enum imsm_update_type *) update->buf; |
8791 | ||
4d7b1503 DW |
8792 | /* update requires a larger buf but the allocation failed */ |
8793 | if (super->next_len && !super->next_buf) { | |
8794 | super->next_len = 0; | |
8795 | return; | |
8796 | } | |
8797 | ||
8798 | if (super->next_buf) { | |
8799 | memcpy(super->next_buf, super->buf, super->len); | |
8800 | free(super->buf); | |
8801 | super->len = super->next_len; | |
8802 | super->buf = super->next_buf; | |
8803 | ||
8804 | super->next_len = 0; | |
8805 | super->next_buf = NULL; | |
8806 | } | |
8807 | ||
8808 | mpb = super->anchor; | |
8809 | ||
e8319a19 | 8810 | switch (type) { |
0ec5d470 AK |
8811 | case update_general_migration_checkpoint: { |
8812 | struct intel_dev *id; | |
8813 | struct imsm_update_general_migration_checkpoint *u = | |
8814 | (void *)update->buf; | |
8815 | ||
1ade5cc1 | 8816 | dprintf("called for update_general_migration_checkpoint\n"); |
0ec5d470 AK |
8817 | |
8818 | /* find device under general migration */ | |
8819 | for (id = super->devlist ; id; id = id->next) { | |
8820 | if (is_gen_migration(id->dev)) { | |
8821 | id->dev->vol.curr_migr_unit = | |
8822 | __cpu_to_le32(u->curr_migr_unit); | |
8823 | super->updates_pending++; | |
8824 | } | |
8825 | } | |
8826 | break; | |
8827 | } | |
bb025c2f KW |
8828 | case update_takeover: { |
8829 | struct imsm_update_takeover *u = (void *)update->buf; | |
1a2487c2 KW |
8830 | if (apply_takeover_update(u, super, &update->space_list)) { |
8831 | imsm_update_version_info(super); | |
bb025c2f | 8832 | super->updates_pending++; |
1a2487c2 | 8833 | } |
bb025c2f KW |
8834 | break; |
8835 | } | |
8836 | ||
78b10e66 | 8837 | case update_reshape_container_disks: { |
d195167d | 8838 | struct imsm_update_reshape *u = (void *)update->buf; |
2e5dc010 N |
8839 | if (apply_reshape_container_disks_update( |
8840 | u, super, &update->space_list)) | |
8841 | super->updates_pending++; | |
78b10e66 N |
8842 | break; |
8843 | } | |
48c5303a | 8844 | case update_reshape_migration: { |
a29911da PC |
8845 | struct imsm_update_reshape_migration *u = (void *)update->buf; |
8846 | if (apply_reshape_migration_update( | |
8847 | u, super, &update->space_list)) | |
8848 | super->updates_pending++; | |
48c5303a PC |
8849 | break; |
8850 | } | |
f3871fdc AK |
8851 | case update_size_change: { |
8852 | struct imsm_update_size_change *u = (void *)update->buf; | |
8853 | if (apply_size_change_update(u, super)) | |
8854 | super->updates_pending++; | |
8855 | break; | |
8856 | } | |
e8319a19 | 8857 | case update_activate_spare: { |
1011e834 | 8858 | struct imsm_update_activate_spare *u = (void *) update->buf; |
061d7da3 LO |
8859 | if (apply_update_activate_spare(u, super, st->arrays)) |
8860 | super->updates_pending++; | |
8273f55e DW |
8861 | break; |
8862 | } | |
8863 | case update_create_array: { | |
8864 | /* someone wants to create a new array, we need to be aware of | |
8865 | * a few races/collisions: | |
8866 | * 1/ 'Create' called by two separate instances of mdadm | |
8867 | * 2/ 'Create' versus 'activate_spare': mdadm has chosen | |
8868 | * devices that have since been assimilated via | |
8869 | * activate_spare. | |
8870 | * In the event this update can not be carried out mdadm will | |
8871 | * (FIX ME) notice that its update did not take hold. | |
8872 | */ | |
8873 | struct imsm_update_create_array *u = (void *) update->buf; | |
ba2de7ba | 8874 | struct intel_dev *dv; |
8273f55e DW |
8875 | struct imsm_dev *dev; |
8876 | struct imsm_map *map, *new_map; | |
8877 | unsigned long long start, end; | |
8878 | unsigned long long new_start, new_end; | |
8879 | int i; | |
54c2c1ea DW |
8880 | struct disk_info *inf; |
8881 | struct dl *dl; | |
8273f55e DW |
8882 | |
8883 | /* handle racing creates: first come first serve */ | |
8884 | if (u->dev_idx < mpb->num_raid_devs) { | |
1ade5cc1 | 8885 | dprintf("subarray %d already defined\n", u->dev_idx); |
ba2de7ba | 8886 | goto create_error; |
8273f55e DW |
8887 | } |
8888 | ||
8889 | /* check update is next in sequence */ | |
8890 | if (u->dev_idx != mpb->num_raid_devs) { | |
1ade5cc1 N |
8891 | dprintf("can not create array %d expected index %d\n", |
8892 | u->dev_idx, mpb->num_raid_devs); | |
ba2de7ba | 8893 | goto create_error; |
8273f55e DW |
8894 | } |
8895 | ||
238c0a71 | 8896 | new_map = get_imsm_map(&u->dev, MAP_0); |
5551b113 CA |
8897 | new_start = pba_of_lba0(new_map); |
8898 | new_end = new_start + blocks_per_member(new_map); | |
54c2c1ea | 8899 | inf = get_disk_info(u); |
8273f55e DW |
8900 | |
8901 | /* handle activate_spare versus create race: | |
8902 | * check to make sure that overlapping arrays do not include | |
8903 | * overalpping disks | |
8904 | */ | |
8905 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
949c47a0 | 8906 | dev = get_imsm_dev(super, i); |
238c0a71 | 8907 | map = get_imsm_map(dev, MAP_0); |
5551b113 CA |
8908 | start = pba_of_lba0(map); |
8909 | end = start + blocks_per_member(map); | |
8273f55e DW |
8910 | if ((new_start >= start && new_start <= end) || |
8911 | (start >= new_start && start <= new_end)) | |
54c2c1ea DW |
8912 | /* overlap */; |
8913 | else | |
8914 | continue; | |
8915 | ||
8916 | if (disks_overlap(super, i, u)) { | |
1ade5cc1 | 8917 | dprintf("arrays overlap\n"); |
ba2de7ba | 8918 | goto create_error; |
8273f55e DW |
8919 | } |
8920 | } | |
8273f55e | 8921 | |
949c47a0 DW |
8922 | /* check that prepare update was successful */ |
8923 | if (!update->space) { | |
1ade5cc1 | 8924 | dprintf("prepare update failed\n"); |
ba2de7ba | 8925 | goto create_error; |
949c47a0 DW |
8926 | } |
8927 | ||
54c2c1ea DW |
8928 | /* check that all disks are still active before committing |
8929 | * changes. FIXME: could we instead handle this by creating a | |
8930 | * degraded array? That's probably not what the user expects, | |
8931 | * so better to drop this update on the floor. | |
8932 | */ | |
8933 | for (i = 0; i < new_map->num_members; i++) { | |
8934 | dl = serial_to_dl(inf[i].serial, super); | |
8935 | if (!dl) { | |
1ade5cc1 | 8936 | dprintf("disk disappeared\n"); |
ba2de7ba | 8937 | goto create_error; |
54c2c1ea | 8938 | } |
949c47a0 DW |
8939 | } |
8940 | ||
8273f55e | 8941 | super->updates_pending++; |
54c2c1ea DW |
8942 | |
8943 | /* convert spares to members and fixup ord_tbl */ | |
8944 | for (i = 0; i < new_map->num_members; i++) { | |
8945 | dl = serial_to_dl(inf[i].serial, super); | |
8946 | if (dl->index == -1) { | |
8947 | dl->index = mpb->num_disks; | |
8948 | mpb->num_disks++; | |
8949 | dl->disk.status |= CONFIGURED_DISK; | |
8950 | dl->disk.status &= ~SPARE_DISK; | |
8951 | } | |
8952 | set_imsm_ord_tbl_ent(new_map, i, dl->index); | |
8953 | } | |
8954 | ||
ba2de7ba DW |
8955 | dv = update->space; |
8956 | dev = dv->dev; | |
949c47a0 DW |
8957 | update->space = NULL; |
8958 | imsm_copy_dev(dev, &u->dev); | |
ba2de7ba DW |
8959 | dv->index = u->dev_idx; |
8960 | dv->next = super->devlist; | |
8961 | super->devlist = dv; | |
8273f55e | 8962 | mpb->num_raid_devs++; |
8273f55e | 8963 | |
4d1313e9 | 8964 | imsm_update_version_info(super); |
8273f55e | 8965 | break; |
ba2de7ba DW |
8966 | create_error: |
8967 | /* mdmon knows how to release update->space, but not | |
8968 | * ((struct intel_dev *) update->space)->dev | |
8969 | */ | |
8970 | if (update->space) { | |
8971 | dv = update->space; | |
8972 | free(dv->dev); | |
8973 | } | |
8273f55e | 8974 | break; |
e8319a19 | 8975 | } |
33414a01 DW |
8976 | case update_kill_array: { |
8977 | struct imsm_update_kill_array *u = (void *) update->buf; | |
8978 | int victim = u->dev_idx; | |
8979 | struct active_array *a; | |
8980 | struct intel_dev **dp; | |
8981 | struct imsm_dev *dev; | |
8982 | ||
8983 | /* sanity check that we are not affecting the uuid of | |
8984 | * active arrays, or deleting an active array | |
8985 | * | |
8986 | * FIXME when immutable ids are available, but note that | |
8987 | * we'll also need to fixup the invalidated/active | |
8988 | * subarray indexes in mdstat | |
8989 | */ | |
8990 | for (a = st->arrays; a; a = a->next) | |
8991 | if (a->info.container_member >= victim) | |
8992 | break; | |
8993 | /* by definition if mdmon is running at least one array | |
8994 | * is active in the container, so checking | |
8995 | * mpb->num_raid_devs is just extra paranoia | |
8996 | */ | |
8997 | dev = get_imsm_dev(super, victim); | |
8998 | if (a || !dev || mpb->num_raid_devs == 1) { | |
8999 | dprintf("failed to delete subarray-%d\n", victim); | |
9000 | break; | |
9001 | } | |
9002 | ||
9003 | for (dp = &super->devlist; *dp;) | |
f21e18ca | 9004 | if ((*dp)->index == (unsigned)super->current_vol) { |
33414a01 DW |
9005 | *dp = (*dp)->next; |
9006 | } else { | |
f21e18ca | 9007 | if ((*dp)->index > (unsigned)victim) |
33414a01 DW |
9008 | (*dp)->index--; |
9009 | dp = &(*dp)->next; | |
9010 | } | |
9011 | mpb->num_raid_devs--; | |
9012 | super->updates_pending++; | |
9013 | break; | |
9014 | } | |
aa534678 DW |
9015 | case update_rename_array: { |
9016 | struct imsm_update_rename_array *u = (void *) update->buf; | |
9017 | char name[MAX_RAID_SERIAL_LEN+1]; | |
9018 | int target = u->dev_idx; | |
9019 | struct active_array *a; | |
9020 | struct imsm_dev *dev; | |
9021 | ||
9022 | /* sanity check that we are not affecting the uuid of | |
9023 | * an active array | |
9024 | */ | |
9025 | snprintf(name, MAX_RAID_SERIAL_LEN, "%s", (char *) u->name); | |
9026 | name[MAX_RAID_SERIAL_LEN] = '\0'; | |
9027 | for (a = st->arrays; a; a = a->next) | |
9028 | if (a->info.container_member == target) | |
9029 | break; | |
9030 | dev = get_imsm_dev(super, u->dev_idx); | |
9031 | if (a || !dev || !check_name(super, name, 1)) { | |
9032 | dprintf("failed to rename subarray-%d\n", target); | |
9033 | break; | |
9034 | } | |
9035 | ||
cdbe98cd | 9036 | snprintf((char *) dev->volume, MAX_RAID_SERIAL_LEN, "%s", name); |
aa534678 DW |
9037 | super->updates_pending++; |
9038 | break; | |
9039 | } | |
1a64be56 | 9040 | case update_add_remove_disk: { |
43dad3d6 | 9041 | /* we may be able to repair some arrays if disks are |
095b8088 | 9042 | * being added, check the status of add_remove_disk |
1a64be56 LM |
9043 | * if discs has been added. |
9044 | */ | |
9045 | if (add_remove_disk_update(super)) { | |
43dad3d6 | 9046 | struct active_array *a; |
072b727f DW |
9047 | |
9048 | super->updates_pending++; | |
1a64be56 | 9049 | for (a = st->arrays; a; a = a->next) |
43dad3d6 DW |
9050 | a->check_degraded = 1; |
9051 | } | |
43dad3d6 | 9052 | break; |
e8319a19 | 9053 | } |
1a64be56 | 9054 | default: |
7a862a02 | 9055 | pr_err("error: unsuported process update type:(type: %d)\n", type); |
1a64be56 | 9056 | } |
e8319a19 | 9057 | } |
88758e9d | 9058 | |
bc0b9d34 PC |
9059 | static struct mdinfo *get_spares_for_grow(struct supertype *st); |
9060 | ||
5fe6f031 N |
9061 | static int imsm_prepare_update(struct supertype *st, |
9062 | struct metadata_update *update) | |
8273f55e | 9063 | { |
949c47a0 | 9064 | /** |
4d7b1503 DW |
9065 | * Allocate space to hold new disk entries, raid-device entries or a new |
9066 | * mpb if necessary. The manager synchronously waits for updates to | |
9067 | * complete in the monitor, so new mpb buffers allocated here can be | |
9068 | * integrated by the monitor thread without worrying about live pointers | |
9069 | * in the manager thread. | |
8273f55e | 9070 | */ |
095b8088 | 9071 | enum imsm_update_type type; |
4d7b1503 | 9072 | struct intel_super *super = st->sb; |
f36a9ecd | 9073 | unsigned int sector_size = super->sector_size; |
4d7b1503 DW |
9074 | struct imsm_super *mpb = super->anchor; |
9075 | size_t buf_len; | |
9076 | size_t len = 0; | |
949c47a0 | 9077 | |
095b8088 N |
9078 | if (update->len < (int)sizeof(type)) |
9079 | return 0; | |
9080 | ||
9081 | type = *(enum imsm_update_type *) update->buf; | |
9082 | ||
949c47a0 | 9083 | switch (type) { |
0ec5d470 | 9084 | case update_general_migration_checkpoint: |
095b8088 N |
9085 | if (update->len < (int)sizeof(struct imsm_update_general_migration_checkpoint)) |
9086 | return 0; | |
1ade5cc1 | 9087 | dprintf("called for update_general_migration_checkpoint\n"); |
0ec5d470 | 9088 | break; |
abedf5fc KW |
9089 | case update_takeover: { |
9090 | struct imsm_update_takeover *u = (void *)update->buf; | |
095b8088 N |
9091 | if (update->len < (int)sizeof(*u)) |
9092 | return 0; | |
abedf5fc KW |
9093 | if (u->direction == R0_TO_R10) { |
9094 | void **tail = (void **)&update->space_list; | |
9095 | struct imsm_dev *dev = get_imsm_dev(super, u->subarray); | |
238c0a71 | 9096 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
abedf5fc KW |
9097 | int num_members = map->num_members; |
9098 | void *space; | |
9099 | int size, i; | |
abedf5fc KW |
9100 | /* allocate memory for added disks */ |
9101 | for (i = 0; i < num_members; i++) { | |
9102 | size = sizeof(struct dl); | |
503975b9 | 9103 | space = xmalloc(size); |
abedf5fc KW |
9104 | *tail = space; |
9105 | tail = space; | |
9106 | *tail = NULL; | |
9107 | } | |
9108 | /* allocate memory for new device */ | |
9109 | size = sizeof_imsm_dev(super->devlist->dev, 0) + | |
9110 | (num_members * sizeof(__u32)); | |
503975b9 N |
9111 | space = xmalloc(size); |
9112 | *tail = space; | |
9113 | tail = space; | |
9114 | *tail = NULL; | |
9115 | len = disks_to_mpb_size(num_members * 2); | |
abedf5fc KW |
9116 | } |
9117 | ||
9118 | break; | |
9119 | } | |
78b10e66 | 9120 | case update_reshape_container_disks: { |
d195167d AK |
9121 | /* Every raid device in the container is about to |
9122 | * gain some more devices, and we will enter a | |
9123 | * reconfiguration. | |
9124 | * So each 'imsm_map' will be bigger, and the imsm_vol | |
9125 | * will now hold 2 of them. | |
9126 | * Thus we need new 'struct imsm_dev' allocations sized | |
9127 | * as sizeof_imsm_dev but with more devices in both maps. | |
9128 | */ | |
9129 | struct imsm_update_reshape *u = (void *)update->buf; | |
9130 | struct intel_dev *dl; | |
9131 | void **space_tail = (void**)&update->space_list; | |
9132 | ||
095b8088 N |
9133 | if (update->len < (int)sizeof(*u)) |
9134 | return 0; | |
9135 | ||
1ade5cc1 | 9136 | dprintf("for update_reshape\n"); |
d195167d AK |
9137 | |
9138 | for (dl = super->devlist; dl; dl = dl->next) { | |
9139 | int size = sizeof_imsm_dev(dl->dev, 1); | |
9140 | void *s; | |
d677e0b8 AK |
9141 | if (u->new_raid_disks > u->old_raid_disks) |
9142 | size += sizeof(__u32)*2* | |
9143 | (u->new_raid_disks - u->old_raid_disks); | |
503975b9 | 9144 | s = xmalloc(size); |
d195167d AK |
9145 | *space_tail = s; |
9146 | space_tail = s; | |
9147 | *space_tail = NULL; | |
9148 | } | |
9149 | ||
9150 | len = disks_to_mpb_size(u->new_raid_disks); | |
9151 | dprintf("New anchor length is %llu\n", (unsigned long long)len); | |
78b10e66 N |
9152 | break; |
9153 | } | |
48c5303a | 9154 | case update_reshape_migration: { |
bc0b9d34 PC |
9155 | /* for migration level 0->5 we need to add disks |
9156 | * so the same as for container operation we will copy | |
9157 | * device to the bigger location. | |
9158 | * in memory prepared device and new disk area are prepared | |
9159 | * for usage in process update | |
9160 | */ | |
9161 | struct imsm_update_reshape_migration *u = (void *)update->buf; | |
9162 | struct intel_dev *id; | |
9163 | void **space_tail = (void **)&update->space_list; | |
9164 | int size; | |
9165 | void *s; | |
9166 | int current_level = -1; | |
9167 | ||
095b8088 N |
9168 | if (update->len < (int)sizeof(*u)) |
9169 | return 0; | |
9170 | ||
1ade5cc1 | 9171 | dprintf("for update_reshape\n"); |
bc0b9d34 PC |
9172 | |
9173 | /* add space for bigger array in update | |
9174 | */ | |
9175 | for (id = super->devlist; id; id = id->next) { | |
9176 | if (id->index == (unsigned)u->subdev) { | |
9177 | size = sizeof_imsm_dev(id->dev, 1); | |
9178 | if (u->new_raid_disks > u->old_raid_disks) | |
9179 | size += sizeof(__u32)*2* | |
9180 | (u->new_raid_disks - u->old_raid_disks); | |
503975b9 | 9181 | s = xmalloc(size); |
bc0b9d34 PC |
9182 | *space_tail = s; |
9183 | space_tail = s; | |
9184 | *space_tail = NULL; | |
9185 | break; | |
9186 | } | |
9187 | } | |
9188 | if (update->space_list == NULL) | |
9189 | break; | |
9190 | ||
9191 | /* add space for disk in update | |
9192 | */ | |
9193 | size = sizeof(struct dl); | |
503975b9 | 9194 | s = xmalloc(size); |
bc0b9d34 PC |
9195 | *space_tail = s; |
9196 | space_tail = s; | |
9197 | *space_tail = NULL; | |
9198 | ||
9199 | /* add spare device to update | |
9200 | */ | |
9201 | for (id = super->devlist ; id; id = id->next) | |
9202 | if (id->index == (unsigned)u->subdev) { | |
9203 | struct imsm_dev *dev; | |
9204 | struct imsm_map *map; | |
9205 | ||
9206 | dev = get_imsm_dev(super, u->subdev); | |
238c0a71 | 9207 | map = get_imsm_map(dev, MAP_0); |
bc0b9d34 PC |
9208 | current_level = map->raid_level; |
9209 | break; | |
9210 | } | |
089f9d79 | 9211 | if (u->new_level == 5 && u->new_level != current_level) { |
bc0b9d34 PC |
9212 | struct mdinfo *spares; |
9213 | ||
9214 | spares = get_spares_for_grow(st); | |
9215 | if (spares) { | |
9216 | struct dl *dl; | |
9217 | struct mdinfo *dev; | |
9218 | ||
9219 | dev = spares->devs; | |
9220 | if (dev) { | |
9221 | u->new_disks[0] = | |
9222 | makedev(dev->disk.major, | |
9223 | dev->disk.minor); | |
9224 | dl = get_disk_super(super, | |
9225 | dev->disk.major, | |
9226 | dev->disk.minor); | |
9227 | dl->index = u->old_raid_disks; | |
9228 | dev = dev->next; | |
9229 | } | |
9230 | sysfs_free(spares); | |
9231 | } | |
9232 | } | |
9233 | len = disks_to_mpb_size(u->new_raid_disks); | |
9234 | dprintf("New anchor length is %llu\n", (unsigned long long)len); | |
48c5303a PC |
9235 | break; |
9236 | } | |
f3871fdc | 9237 | case update_size_change: { |
095b8088 N |
9238 | if (update->len < (int)sizeof(struct imsm_update_size_change)) |
9239 | return 0; | |
9240 | break; | |
9241 | } | |
9242 | case update_activate_spare: { | |
9243 | if (update->len < (int)sizeof(struct imsm_update_activate_spare)) | |
9244 | return 0; | |
f3871fdc AK |
9245 | break; |
9246 | } | |
949c47a0 DW |
9247 | case update_create_array: { |
9248 | struct imsm_update_create_array *u = (void *) update->buf; | |
ba2de7ba | 9249 | struct intel_dev *dv; |
54c2c1ea | 9250 | struct imsm_dev *dev = &u->dev; |
238c0a71 | 9251 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
54c2c1ea DW |
9252 | struct dl *dl; |
9253 | struct disk_info *inf; | |
9254 | int i; | |
9255 | int activate = 0; | |
949c47a0 | 9256 | |
095b8088 N |
9257 | if (update->len < (int)sizeof(*u)) |
9258 | return 0; | |
9259 | ||
54c2c1ea DW |
9260 | inf = get_disk_info(u); |
9261 | len = sizeof_imsm_dev(dev, 1); | |
ba2de7ba | 9262 | /* allocate a new super->devlist entry */ |
503975b9 N |
9263 | dv = xmalloc(sizeof(*dv)); |
9264 | dv->dev = xmalloc(len); | |
9265 | update->space = dv; | |
949c47a0 | 9266 | |
54c2c1ea DW |
9267 | /* count how many spares will be converted to members */ |
9268 | for (i = 0; i < map->num_members; i++) { | |
9269 | dl = serial_to_dl(inf[i].serial, super); | |
9270 | if (!dl) { | |
9271 | /* hmm maybe it failed?, nothing we can do about | |
9272 | * it here | |
9273 | */ | |
9274 | continue; | |
9275 | } | |
9276 | if (count_memberships(dl, super) == 0) | |
9277 | activate++; | |
9278 | } | |
9279 | len += activate * sizeof(struct imsm_disk); | |
949c47a0 | 9280 | break; |
095b8088 N |
9281 | } |
9282 | case update_kill_array: { | |
9283 | if (update->len < (int)sizeof(struct imsm_update_kill_array)) | |
9284 | return 0; | |
949c47a0 DW |
9285 | break; |
9286 | } | |
095b8088 N |
9287 | case update_rename_array: { |
9288 | if (update->len < (int)sizeof(struct imsm_update_rename_array)) | |
9289 | return 0; | |
9290 | break; | |
9291 | } | |
9292 | case update_add_remove_disk: | |
9293 | /* no update->len needed */ | |
9294 | break; | |
9295 | default: | |
9296 | return 0; | |
949c47a0 | 9297 | } |
8273f55e | 9298 | |
4d7b1503 DW |
9299 | /* check if we need a larger metadata buffer */ |
9300 | if (super->next_buf) | |
9301 | buf_len = super->next_len; | |
9302 | else | |
9303 | buf_len = super->len; | |
9304 | ||
9305 | if (__le32_to_cpu(mpb->mpb_size) + len > buf_len) { | |
9306 | /* ok we need a larger buf than what is currently allocated | |
9307 | * if this allocation fails process_update will notice that | |
9308 | * ->next_len is set and ->next_buf is NULL | |
9309 | */ | |
f36a9ecd PB |
9310 | buf_len = ROUND_UP(__le32_to_cpu(mpb->mpb_size) + len, |
9311 | sector_size); | |
4d7b1503 DW |
9312 | if (super->next_buf) |
9313 | free(super->next_buf); | |
9314 | ||
9315 | super->next_len = buf_len; | |
f36a9ecd | 9316 | if (posix_memalign(&super->next_buf, sector_size, buf_len) == 0) |
1f45a8ad DW |
9317 | memset(super->next_buf, 0, buf_len); |
9318 | else | |
4d7b1503 DW |
9319 | super->next_buf = NULL; |
9320 | } | |
5fe6f031 | 9321 | return 1; |
8273f55e DW |
9322 | } |
9323 | ||
ae6aad82 | 9324 | /* must be called while manager is quiesced */ |
f21e18ca | 9325 | static void imsm_delete(struct intel_super *super, struct dl **dlp, unsigned index) |
ae6aad82 DW |
9326 | { |
9327 | struct imsm_super *mpb = super->anchor; | |
ae6aad82 DW |
9328 | struct dl *iter; |
9329 | struct imsm_dev *dev; | |
9330 | struct imsm_map *map; | |
24565c9a DW |
9331 | int i, j, num_members; |
9332 | __u32 ord; | |
ae6aad82 | 9333 | |
1ade5cc1 | 9334 | dprintf("deleting device[%d] from imsm_super\n", index); |
ae6aad82 DW |
9335 | |
9336 | /* shift all indexes down one */ | |
9337 | for (iter = super->disks; iter; iter = iter->next) | |
f21e18ca | 9338 | if (iter->index > (int)index) |
ae6aad82 | 9339 | iter->index--; |
47ee5a45 | 9340 | for (iter = super->missing; iter; iter = iter->next) |
f21e18ca | 9341 | if (iter->index > (int)index) |
47ee5a45 | 9342 | iter->index--; |
ae6aad82 DW |
9343 | |
9344 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
9345 | dev = get_imsm_dev(super, i); | |
238c0a71 | 9346 | map = get_imsm_map(dev, MAP_0); |
24565c9a DW |
9347 | num_members = map->num_members; |
9348 | for (j = 0; j < num_members; j++) { | |
9349 | /* update ord entries being careful not to propagate | |
9350 | * ord-flags to the first map | |
9351 | */ | |
238c0a71 | 9352 | ord = get_imsm_ord_tbl_ent(dev, j, MAP_X); |
ae6aad82 | 9353 | |
24565c9a DW |
9354 | if (ord_to_idx(ord) <= index) |
9355 | continue; | |
ae6aad82 | 9356 | |
238c0a71 | 9357 | map = get_imsm_map(dev, MAP_0); |
24565c9a | 9358 | set_imsm_ord_tbl_ent(map, j, ord_to_idx(ord - 1)); |
238c0a71 | 9359 | map = get_imsm_map(dev, MAP_1); |
24565c9a DW |
9360 | if (map) |
9361 | set_imsm_ord_tbl_ent(map, j, ord - 1); | |
ae6aad82 DW |
9362 | } |
9363 | } | |
9364 | ||
9365 | mpb->num_disks--; | |
9366 | super->updates_pending++; | |
24565c9a DW |
9367 | if (*dlp) { |
9368 | struct dl *dl = *dlp; | |
9369 | ||
9370 | *dlp = (*dlp)->next; | |
9371 | __free_imsm_disk(dl); | |
9372 | } | |
ae6aad82 | 9373 | } |
9e2d750d | 9374 | #endif /* MDASSEMBLE */ |
9a717282 AK |
9375 | |
9376 | static void close_targets(int *targets, int new_disks) | |
9377 | { | |
9378 | int i; | |
9379 | ||
9380 | if (!targets) | |
9381 | return; | |
9382 | ||
9383 | for (i = 0; i < new_disks; i++) { | |
9384 | if (targets[i] >= 0) { | |
9385 | close(targets[i]); | |
9386 | targets[i] = -1; | |
9387 | } | |
9388 | } | |
9389 | } | |
9390 | ||
9391 | static int imsm_get_allowed_degradation(int level, int raid_disks, | |
9392 | struct intel_super *super, | |
9393 | struct imsm_dev *dev) | |
9394 | { | |
9395 | switch (level) { | |
bf5cf7c7 | 9396 | case 1: |
9a717282 AK |
9397 | case 10:{ |
9398 | int ret_val = 0; | |
9399 | struct imsm_map *map; | |
9400 | int i; | |
9401 | ||
9402 | ret_val = raid_disks/2; | |
9403 | /* check map if all disks pairs not failed | |
9404 | * in both maps | |
9405 | */ | |
238c0a71 | 9406 | map = get_imsm_map(dev, MAP_0); |
9a717282 AK |
9407 | for (i = 0; i < ret_val; i++) { |
9408 | int degradation = 0; | |
9409 | if (get_imsm_disk(super, i) == NULL) | |
9410 | degradation++; | |
9411 | if (get_imsm_disk(super, i + 1) == NULL) | |
9412 | degradation++; | |
9413 | if (degradation == 2) | |
9414 | return 0; | |
9415 | } | |
238c0a71 | 9416 | map = get_imsm_map(dev, MAP_1); |
9a717282 AK |
9417 | /* if there is no second map |
9418 | * result can be returned | |
9419 | */ | |
9420 | if (map == NULL) | |
9421 | return ret_val; | |
9422 | /* check degradation in second map | |
9423 | */ | |
9424 | for (i = 0; i < ret_val; i++) { | |
9425 | int degradation = 0; | |
9426 | if (get_imsm_disk(super, i) == NULL) | |
9427 | degradation++; | |
9428 | if (get_imsm_disk(super, i + 1) == NULL) | |
9429 | degradation++; | |
9430 | if (degradation == 2) | |
9431 | return 0; | |
9432 | } | |
9433 | return ret_val; | |
9434 | } | |
9435 | case 5: | |
9436 | return 1; | |
9437 | case 6: | |
9438 | return 2; | |
9439 | default: | |
9440 | return 0; | |
9441 | } | |
9442 | } | |
9443 | ||
687629c2 AK |
9444 | /******************************************************************************* |
9445 | * Function: open_backup_targets | |
9446 | * Description: Function opens file descriptors for all devices given in | |
9447 | * info->devs | |
9448 | * Parameters: | |
9449 | * info : general array info | |
9450 | * raid_disks : number of disks | |
9451 | * raid_fds : table of device's file descriptors | |
9a717282 AK |
9452 | * super : intel super for raid10 degradation check |
9453 | * dev : intel device for raid10 degradation check | |
687629c2 AK |
9454 | * Returns: |
9455 | * 0 : success | |
9456 | * -1 : fail | |
9457 | ******************************************************************************/ | |
9a717282 AK |
9458 | int open_backup_targets(struct mdinfo *info, int raid_disks, int *raid_fds, |
9459 | struct intel_super *super, struct imsm_dev *dev) | |
687629c2 AK |
9460 | { |
9461 | struct mdinfo *sd; | |
f627f5ad | 9462 | int i; |
9a717282 | 9463 | int opened = 0; |
f627f5ad AK |
9464 | |
9465 | for (i = 0; i < raid_disks; i++) | |
9466 | raid_fds[i] = -1; | |
687629c2 AK |
9467 | |
9468 | for (sd = info->devs ; sd ; sd = sd->next) { | |
9469 | char *dn; | |
9470 | ||
9471 | if (sd->disk.state & (1<<MD_DISK_FAULTY)) { | |
9472 | dprintf("disk is faulty!!\n"); | |
9473 | continue; | |
9474 | } | |
9475 | ||
089f9d79 | 9476 | if (sd->disk.raid_disk >= raid_disks || sd->disk.raid_disk < 0) |
687629c2 AK |
9477 | continue; |
9478 | ||
9479 | dn = map_dev(sd->disk.major, | |
9480 | sd->disk.minor, 1); | |
9481 | raid_fds[sd->disk.raid_disk] = dev_open(dn, O_RDWR); | |
9482 | if (raid_fds[sd->disk.raid_disk] < 0) { | |
e12b3daa | 9483 | pr_err("cannot open component\n"); |
9a717282 | 9484 | continue; |
687629c2 | 9485 | } |
9a717282 AK |
9486 | opened++; |
9487 | } | |
9488 | /* check if maximum array degradation level is not exceeded | |
9489 | */ | |
9490 | if ((raid_disks - opened) > | |
089f9d79 JS |
9491 | imsm_get_allowed_degradation(info->new_level, raid_disks, |
9492 | super, dev)) { | |
e12b3daa | 9493 | pr_err("Not enough disks can be opened.\n"); |
9a717282 AK |
9494 | close_targets(raid_fds, raid_disks); |
9495 | return -2; | |
687629c2 AK |
9496 | } |
9497 | return 0; | |
9498 | } | |
9499 | ||
d31ad643 PB |
9500 | /******************************************************************************* |
9501 | * Function: validate_container_imsm | |
9502 | * Description: This routine validates container after assemble, | |
9503 | * eg. if devices in container are under the same controller. | |
9504 | * | |
9505 | * Parameters: | |
9506 | * info : linked list with info about devices used in array | |
9507 | * Returns: | |
9508 | * 1 : HBA mismatch | |
9509 | * 0 : Success | |
9510 | ******************************************************************************/ | |
9511 | int validate_container_imsm(struct mdinfo *info) | |
9512 | { | |
6b781d33 AP |
9513 | if (check_env("IMSM_NO_PLATFORM")) |
9514 | return 0; | |
d31ad643 | 9515 | |
6b781d33 AP |
9516 | struct sys_dev *idev; |
9517 | struct sys_dev *hba = NULL; | |
9518 | struct sys_dev *intel_devices = find_intel_devices(); | |
9519 | char *dev_path = devt_to_devpath(makedev(info->disk.major, | |
9520 | info->disk.minor)); | |
9521 | ||
9522 | for (idev = intel_devices; idev; idev = idev->next) { | |
9523 | if (dev_path && strstr(dev_path, idev->path)) { | |
9524 | hba = idev; | |
9525 | break; | |
d31ad643 | 9526 | } |
6b781d33 AP |
9527 | } |
9528 | if (dev_path) | |
d31ad643 PB |
9529 | free(dev_path); |
9530 | ||
6b781d33 AP |
9531 | if (!hba) { |
9532 | pr_err("WARNING - Cannot detect HBA for device %s!\n", | |
9533 | devid2kname(makedev(info->disk.major, info->disk.minor))); | |
9534 | return 1; | |
9535 | } | |
9536 | ||
9537 | const struct imsm_orom *orom = get_orom_by_device_id(hba->dev_id); | |
9538 | struct mdinfo *dev; | |
9539 | ||
9540 | for (dev = info->next; dev; dev = dev->next) { | |
9541 | dev_path = devt_to_devpath(makedev(dev->disk.major, dev->disk.minor)); | |
9542 | ||
9543 | struct sys_dev *hba2 = NULL; | |
9544 | for (idev = intel_devices; idev; idev = idev->next) { | |
9545 | if (dev_path && strstr(dev_path, idev->path)) { | |
9546 | hba2 = idev; | |
9547 | break; | |
d31ad643 PB |
9548 | } |
9549 | } | |
6b781d33 AP |
9550 | if (dev_path) |
9551 | free(dev_path); | |
9552 | ||
9553 | const struct imsm_orom *orom2 = hba2 == NULL ? NULL : | |
9554 | get_orom_by_device_id(hba2->dev_id); | |
9555 | ||
9556 | if (hba2 && hba->type != hba2->type) { | |
9557 | pr_err("WARNING - HBAs of devices do not match %s != %s\n", | |
9558 | get_sys_dev_type(hba->type), get_sys_dev_type(hba2->type)); | |
9559 | return 1; | |
9560 | } | |
9561 | ||
07cb1e57 | 9562 | if (orom != orom2) { |
6b781d33 AP |
9563 | pr_err("WARNING - IMSM container assembled with disks under different HBAs!\n" |
9564 | " This operation is not supported and can lead to data loss.\n"); | |
9565 | return 1; | |
9566 | } | |
9567 | ||
9568 | if (!orom) { | |
9569 | pr_err("WARNING - IMSM container assembled with disks under HBAs without IMSM platform support!\n" | |
9570 | " This operation is not supported and can lead to data loss.\n"); | |
9571 | return 1; | |
9572 | } | |
d31ad643 | 9573 | } |
6b781d33 | 9574 | |
d31ad643 PB |
9575 | return 0; |
9576 | } | |
9e2d750d | 9577 | #ifndef MDASSEMBLE |
687629c2 AK |
9578 | /******************************************************************************* |
9579 | * Function: init_migr_record_imsm | |
9580 | * Description: Function inits imsm migration record | |
9581 | * Parameters: | |
9582 | * super : imsm internal array info | |
9583 | * dev : device under migration | |
9584 | * info : general array info to find the smallest device | |
9585 | * Returns: | |
9586 | * none | |
9587 | ******************************************************************************/ | |
9588 | void init_migr_record_imsm(struct supertype *st, struct imsm_dev *dev, | |
9589 | struct mdinfo *info) | |
9590 | { | |
9591 | struct intel_super *super = st->sb; | |
9592 | struct migr_record *migr_rec = super->migr_rec; | |
9593 | int new_data_disks; | |
9594 | unsigned long long dsize, dev_sectors; | |
9595 | long long unsigned min_dev_sectors = -1LLU; | |
9596 | struct mdinfo *sd; | |
9597 | char nm[30]; | |
9598 | int fd; | |
238c0a71 AK |
9599 | struct imsm_map *map_dest = get_imsm_map(dev, MAP_0); |
9600 | struct imsm_map *map_src = get_imsm_map(dev, MAP_1); | |
687629c2 | 9601 | unsigned long long num_migr_units; |
3ef4403c | 9602 | unsigned long long array_blocks; |
687629c2 AK |
9603 | |
9604 | memset(migr_rec, 0, sizeof(struct migr_record)); | |
9605 | migr_rec->family_num = __cpu_to_le32(super->anchor->family_num); | |
9606 | ||
9607 | /* only ascending reshape supported now */ | |
9608 | migr_rec->ascending_migr = __cpu_to_le32(1); | |
9609 | ||
9610 | migr_rec->dest_depth_per_unit = GEN_MIGR_AREA_SIZE / | |
9611 | max(map_dest->blocks_per_strip, map_src->blocks_per_strip); | |
e1742195 AK |
9612 | migr_rec->dest_depth_per_unit *= |
9613 | max(map_dest->blocks_per_strip, map_src->blocks_per_strip); | |
238c0a71 | 9614 | new_data_disks = imsm_num_data_members(dev, MAP_0); |
687629c2 AK |
9615 | migr_rec->blocks_per_unit = |
9616 | __cpu_to_le32(migr_rec->dest_depth_per_unit * new_data_disks); | |
9617 | migr_rec->dest_depth_per_unit = | |
9618 | __cpu_to_le32(migr_rec->dest_depth_per_unit); | |
3ef4403c | 9619 | array_blocks = info->component_size * new_data_disks; |
687629c2 AK |
9620 | num_migr_units = |
9621 | array_blocks / __le32_to_cpu(migr_rec->blocks_per_unit); | |
9622 | ||
9623 | if (array_blocks % __le32_to_cpu(migr_rec->blocks_per_unit)) | |
9624 | num_migr_units++; | |
9625 | migr_rec->num_migr_units = __cpu_to_le32(num_migr_units); | |
9626 | ||
9627 | migr_rec->post_migr_vol_cap = dev->size_low; | |
9628 | migr_rec->post_migr_vol_cap_hi = dev->size_high; | |
9629 | ||
687629c2 AK |
9630 | /* Find the smallest dev */ |
9631 | for (sd = info->devs ; sd ; sd = sd->next) { | |
9632 | sprintf(nm, "%d:%d", sd->disk.major, sd->disk.minor); | |
9633 | fd = dev_open(nm, O_RDONLY); | |
9634 | if (fd < 0) | |
9635 | continue; | |
9636 | get_dev_size(fd, NULL, &dsize); | |
9637 | dev_sectors = dsize / 512; | |
9638 | if (dev_sectors < min_dev_sectors) | |
9639 | min_dev_sectors = dev_sectors; | |
9640 | close(fd); | |
9641 | } | |
9642 | migr_rec->ckpt_area_pba = __cpu_to_le32(min_dev_sectors - | |
9643 | RAID_DISK_RESERVED_BLOCKS_IMSM_HI); | |
9644 | ||
9645 | write_imsm_migr_rec(st); | |
9646 | ||
9647 | return; | |
9648 | } | |
9649 | ||
9650 | /******************************************************************************* | |
9651 | * Function: save_backup_imsm | |
9652 | * Description: Function saves critical data stripes to Migration Copy Area | |
9653 | * and updates the current migration unit status. | |
9654 | * Use restore_stripes() to form a destination stripe, | |
9655 | * and to write it to the Copy Area. | |
9656 | * Parameters: | |
9657 | * st : supertype information | |
aea93171 | 9658 | * dev : imsm device that backup is saved for |
687629c2 AK |
9659 | * info : general array info |
9660 | * buf : input buffer | |
687629c2 AK |
9661 | * length : length of data to backup (blocks_per_unit) |
9662 | * Returns: | |
9663 | * 0 : success | |
9664 | *, -1 : fail | |
9665 | ******************************************************************************/ | |
9666 | int save_backup_imsm(struct supertype *st, | |
9667 | struct imsm_dev *dev, | |
9668 | struct mdinfo *info, | |
9669 | void *buf, | |
687629c2 AK |
9670 | int length) |
9671 | { | |
9672 | int rv = -1; | |
9673 | struct intel_super *super = st->sb; | |
594dc1b8 JS |
9674 | unsigned long long *target_offsets; |
9675 | int *targets; | |
687629c2 | 9676 | int i; |
238c0a71 | 9677 | struct imsm_map *map_dest = get_imsm_map(dev, MAP_0); |
687629c2 | 9678 | int new_disks = map_dest->num_members; |
ab724b98 AK |
9679 | int dest_layout = 0; |
9680 | int dest_chunk; | |
d1877f69 | 9681 | unsigned long long start; |
238c0a71 | 9682 | int data_disks = imsm_num_data_members(dev, MAP_0); |
687629c2 | 9683 | |
503975b9 | 9684 | targets = xmalloc(new_disks * sizeof(int)); |
687629c2 | 9685 | |
7e45b550 AK |
9686 | for (i = 0; i < new_disks; i++) |
9687 | targets[i] = -1; | |
9688 | ||
503975b9 | 9689 | target_offsets = xcalloc(new_disks, sizeof(unsigned long long)); |
687629c2 | 9690 | |
d1877f69 | 9691 | start = info->reshape_progress * 512; |
687629c2 | 9692 | for (i = 0; i < new_disks; i++) { |
687629c2 AK |
9693 | target_offsets[i] = (unsigned long long) |
9694 | __le32_to_cpu(super->migr_rec->ckpt_area_pba) * 512; | |
d1877f69 AK |
9695 | /* move back copy area adderss, it will be moved forward |
9696 | * in restore_stripes() using start input variable | |
9697 | */ | |
9698 | target_offsets[i] -= start/data_disks; | |
687629c2 AK |
9699 | } |
9700 | ||
9a717282 AK |
9701 | if (open_backup_targets(info, new_disks, targets, |
9702 | super, dev)) | |
687629c2 AK |
9703 | goto abort; |
9704 | ||
68eb8bc6 | 9705 | dest_layout = imsm_level_to_layout(map_dest->raid_level); |
ab724b98 AK |
9706 | dest_chunk = __le16_to_cpu(map_dest->blocks_per_strip) * 512; |
9707 | ||
687629c2 AK |
9708 | if (restore_stripes(targets, /* list of dest devices */ |
9709 | target_offsets, /* migration record offsets */ | |
9710 | new_disks, | |
ab724b98 AK |
9711 | dest_chunk, |
9712 | map_dest->raid_level, | |
9713 | dest_layout, | |
9714 | -1, /* source backup file descriptor */ | |
9715 | 0, /* input buf offset | |
9716 | * always 0 buf is already offseted */ | |
d1877f69 | 9717 | start, |
687629c2 AK |
9718 | length, |
9719 | buf) != 0) { | |
e7b84f9d | 9720 | pr_err("Error restoring stripes\n"); |
687629c2 AK |
9721 | goto abort; |
9722 | } | |
9723 | ||
9724 | rv = 0; | |
9725 | ||
9726 | abort: | |
9727 | if (targets) { | |
9a717282 | 9728 | close_targets(targets, new_disks); |
687629c2 AK |
9729 | free(targets); |
9730 | } | |
9731 | free(target_offsets); | |
9732 | ||
9733 | return rv; | |
9734 | } | |
9735 | ||
9736 | /******************************************************************************* | |
9737 | * Function: save_checkpoint_imsm | |
9738 | * Description: Function called for current unit status update | |
9739 | * in the migration record. It writes it to disk. | |
9740 | * Parameters: | |
9741 | * super : imsm internal array info | |
9742 | * info : general array info | |
9743 | * Returns: | |
9744 | * 0: success | |
9745 | * 1: failure | |
0228d92c AK |
9746 | * 2: failure, means no valid migration record |
9747 | * / no general migration in progress / | |
687629c2 AK |
9748 | ******************************************************************************/ |
9749 | int save_checkpoint_imsm(struct supertype *st, struct mdinfo *info, int state) | |
9750 | { | |
9751 | struct intel_super *super = st->sb; | |
f8b72ef5 AK |
9752 | unsigned long long blocks_per_unit; |
9753 | unsigned long long curr_migr_unit; | |
9754 | ||
2e062e82 | 9755 | if (load_imsm_migr_rec(super, info) != 0) { |
7a862a02 | 9756 | dprintf("imsm: ERROR: Cannot read migration record for checkpoint save.\n"); |
2e062e82 AK |
9757 | return 1; |
9758 | } | |
9759 | ||
f8b72ef5 AK |
9760 | blocks_per_unit = __le32_to_cpu(super->migr_rec->blocks_per_unit); |
9761 | if (blocks_per_unit == 0) { | |
0228d92c AK |
9762 | dprintf("imsm: no migration in progress.\n"); |
9763 | return 2; | |
687629c2 | 9764 | } |
f8b72ef5 AK |
9765 | curr_migr_unit = info->reshape_progress / blocks_per_unit; |
9766 | /* check if array is alligned to copy area | |
9767 | * if it is not alligned, add one to current migration unit value | |
9768 | * this can happend on array reshape finish only | |
9769 | */ | |
9770 | if (info->reshape_progress % blocks_per_unit) | |
9771 | curr_migr_unit++; | |
687629c2 AK |
9772 | |
9773 | super->migr_rec->curr_migr_unit = | |
f8b72ef5 | 9774 | __cpu_to_le32(curr_migr_unit); |
687629c2 AK |
9775 | super->migr_rec->rec_status = __cpu_to_le32(state); |
9776 | super->migr_rec->dest_1st_member_lba = | |
f8b72ef5 AK |
9777 | __cpu_to_le32(curr_migr_unit * |
9778 | __le32_to_cpu(super->migr_rec->dest_depth_per_unit)); | |
687629c2 | 9779 | if (write_imsm_migr_rec(st) < 0) { |
7a862a02 | 9780 | dprintf("imsm: Cannot write migration record outside backup area\n"); |
687629c2 AK |
9781 | return 1; |
9782 | } | |
9783 | ||
9784 | return 0; | |
9785 | } | |
9786 | ||
276d77db AK |
9787 | /******************************************************************************* |
9788 | * Function: recover_backup_imsm | |
9789 | * Description: Function recovers critical data from the Migration Copy Area | |
9790 | * while assembling an array. | |
9791 | * Parameters: | |
9792 | * super : imsm internal array info | |
9793 | * info : general array info | |
9794 | * Returns: | |
9795 | * 0 : success (or there is no data to recover) | |
9796 | * 1 : fail | |
9797 | ******************************************************************************/ | |
9798 | int recover_backup_imsm(struct supertype *st, struct mdinfo *info) | |
9799 | { | |
9800 | struct intel_super *super = st->sb; | |
9801 | struct migr_record *migr_rec = super->migr_rec; | |
594dc1b8 | 9802 | struct imsm_map *map_dest; |
276d77db AK |
9803 | struct intel_dev *id = NULL; |
9804 | unsigned long long read_offset; | |
9805 | unsigned long long write_offset; | |
9806 | unsigned unit_len; | |
9807 | int *targets = NULL; | |
9808 | int new_disks, i, err; | |
9809 | char *buf = NULL; | |
9810 | int retval = 1; | |
f36a9ecd | 9811 | unsigned int sector_size = super->sector_size; |
276d77db AK |
9812 | unsigned long curr_migr_unit = __le32_to_cpu(migr_rec->curr_migr_unit); |
9813 | unsigned long num_migr_units = __le32_to_cpu(migr_rec->num_migr_units); | |
276d77db | 9814 | char buffer[20]; |
6c3560c0 | 9815 | int skipped_disks = 0; |
276d77db AK |
9816 | |
9817 | err = sysfs_get_str(info, NULL, "array_state", (char *)buffer, 20); | |
9818 | if (err < 1) | |
9819 | return 1; | |
9820 | ||
9821 | /* recover data only during assemblation */ | |
9822 | if (strncmp(buffer, "inactive", 8) != 0) | |
9823 | return 0; | |
9824 | /* no data to recover */ | |
9825 | if (__le32_to_cpu(migr_rec->rec_status) == UNIT_SRC_NORMAL) | |
9826 | return 0; | |
9827 | if (curr_migr_unit >= num_migr_units) | |
9828 | return 1; | |
9829 | ||
9830 | /* find device during reshape */ | |
9831 | for (id = super->devlist; id; id = id->next) | |
9832 | if (is_gen_migration(id->dev)) | |
9833 | break; | |
9834 | if (id == NULL) | |
9835 | return 1; | |
9836 | ||
238c0a71 | 9837 | map_dest = get_imsm_map(id->dev, MAP_0); |
276d77db AK |
9838 | new_disks = map_dest->num_members; |
9839 | ||
9840 | read_offset = (unsigned long long) | |
9841 | __le32_to_cpu(migr_rec->ckpt_area_pba) * 512; | |
9842 | ||
9843 | write_offset = ((unsigned long long) | |
9844 | __le32_to_cpu(migr_rec->dest_1st_member_lba) + | |
5551b113 | 9845 | pba_of_lba0(map_dest)) * 512; |
276d77db AK |
9846 | |
9847 | unit_len = __le32_to_cpu(migr_rec->dest_depth_per_unit) * 512; | |
f36a9ecd | 9848 | if (posix_memalign((void **)&buf, sector_size, unit_len) != 0) |
276d77db | 9849 | goto abort; |
503975b9 | 9850 | targets = xcalloc(new_disks, sizeof(int)); |
276d77db | 9851 | |
9a717282 | 9852 | if (open_backup_targets(info, new_disks, targets, super, id->dev)) { |
e7b84f9d | 9853 | pr_err("Cannot open some devices belonging to array.\n"); |
f627f5ad AK |
9854 | goto abort; |
9855 | } | |
276d77db AK |
9856 | |
9857 | for (i = 0; i < new_disks; i++) { | |
6c3560c0 AK |
9858 | if (targets[i] < 0) { |
9859 | skipped_disks++; | |
9860 | continue; | |
9861 | } | |
276d77db | 9862 | if (lseek64(targets[i], read_offset, SEEK_SET) < 0) { |
e7b84f9d N |
9863 | pr_err("Cannot seek to block: %s\n", |
9864 | strerror(errno)); | |
137debce AK |
9865 | skipped_disks++; |
9866 | continue; | |
276d77db | 9867 | } |
9ec11d1a | 9868 | if ((unsigned)read(targets[i], buf, unit_len) != unit_len) { |
e7b84f9d N |
9869 | pr_err("Cannot read copy area block: %s\n", |
9870 | strerror(errno)); | |
137debce AK |
9871 | skipped_disks++; |
9872 | continue; | |
276d77db AK |
9873 | } |
9874 | if (lseek64(targets[i], write_offset, SEEK_SET) < 0) { | |
e7b84f9d N |
9875 | pr_err("Cannot seek to block: %s\n", |
9876 | strerror(errno)); | |
137debce AK |
9877 | skipped_disks++; |
9878 | continue; | |
276d77db | 9879 | } |
9ec11d1a | 9880 | if ((unsigned)write(targets[i], buf, unit_len) != unit_len) { |
e7b84f9d N |
9881 | pr_err("Cannot restore block: %s\n", |
9882 | strerror(errno)); | |
137debce AK |
9883 | skipped_disks++; |
9884 | continue; | |
276d77db AK |
9885 | } |
9886 | } | |
9887 | ||
137debce AK |
9888 | if (skipped_disks > imsm_get_allowed_degradation(info->new_level, |
9889 | new_disks, | |
9890 | super, | |
9891 | id->dev)) { | |
7a862a02 | 9892 | pr_err("Cannot restore data from backup. Too many failed disks\n"); |
6c3560c0 AK |
9893 | goto abort; |
9894 | } | |
9895 | ||
befb629b AK |
9896 | if (save_checkpoint_imsm(st, info, UNIT_SRC_NORMAL)) { |
9897 | /* ignore error == 2, this can mean end of reshape here | |
9898 | */ | |
7a862a02 | 9899 | dprintf("imsm: Cannot write checkpoint to migration record (UNIT_SRC_NORMAL) during restart\n"); |
befb629b | 9900 | } else |
276d77db | 9901 | retval = 0; |
276d77db AK |
9902 | |
9903 | abort: | |
9904 | if (targets) { | |
9905 | for (i = 0; i < new_disks; i++) | |
9906 | if (targets[i]) | |
9907 | close(targets[i]); | |
9908 | free(targets); | |
9909 | } | |
9910 | free(buf); | |
9911 | return retval; | |
9912 | } | |
9913 | ||
2cda7640 ML |
9914 | static char disk_by_path[] = "/dev/disk/by-path/"; |
9915 | ||
9916 | static const char *imsm_get_disk_controller_domain(const char *path) | |
9917 | { | |
2cda7640 | 9918 | char disk_path[PATH_MAX]; |
96234762 LM |
9919 | char *drv=NULL; |
9920 | struct stat st; | |
2cda7640 | 9921 | |
6d8d290a | 9922 | strcpy(disk_path, disk_by_path); |
96234762 LM |
9923 | strncat(disk_path, path, PATH_MAX - strlen(disk_path) - 1); |
9924 | if (stat(disk_path, &st) == 0) { | |
9925 | struct sys_dev* hba; | |
594dc1b8 | 9926 | char *path; |
96234762 LM |
9927 | |
9928 | path = devt_to_devpath(st.st_rdev); | |
9929 | if (path == NULL) | |
9930 | return "unknown"; | |
9931 | hba = find_disk_attached_hba(-1, path); | |
9932 | if (hba && hba->type == SYS_DEV_SAS) | |
9933 | drv = "isci"; | |
9934 | else if (hba && hba->type == SYS_DEV_SATA) | |
9935 | drv = "ahci"; | |
1011e834 | 9936 | else |
96234762 LM |
9937 | drv = "unknown"; |
9938 | dprintf("path: %s hba: %s attached: %s\n", | |
9939 | path, (hba) ? hba->path : "NULL", drv); | |
9940 | free(path); | |
2cda7640 | 9941 | } |
96234762 | 9942 | return drv; |
2cda7640 ML |
9943 | } |
9944 | ||
4dd2df09 | 9945 | static char *imsm_find_array_devnm_by_subdev(int subdev, char *container) |
78b10e66 | 9946 | { |
4dd2df09 | 9947 | static char devnm[32]; |
78b10e66 N |
9948 | char subdev_name[20]; |
9949 | struct mdstat_ent *mdstat; | |
9950 | ||
9951 | sprintf(subdev_name, "%d", subdev); | |
9952 | mdstat = mdstat_by_subdev(subdev_name, container); | |
9953 | if (!mdstat) | |
4dd2df09 | 9954 | return NULL; |
78b10e66 | 9955 | |
4dd2df09 | 9956 | strcpy(devnm, mdstat->devnm); |
78b10e66 | 9957 | free_mdstat(mdstat); |
4dd2df09 | 9958 | return devnm; |
78b10e66 N |
9959 | } |
9960 | ||
9961 | static int imsm_reshape_is_allowed_on_container(struct supertype *st, | |
9962 | struct geo_params *geo, | |
fbf3d202 AK |
9963 | int *old_raid_disks, |
9964 | int direction) | |
78b10e66 | 9965 | { |
694575e7 KW |
9966 | /* currently we only support increasing the number of devices |
9967 | * for a container. This increases the number of device for each | |
9968 | * member array. They must all be RAID0 or RAID5. | |
9969 | */ | |
78b10e66 N |
9970 | int ret_val = 0; |
9971 | struct mdinfo *info, *member; | |
9972 | int devices_that_can_grow = 0; | |
9973 | ||
7a862a02 | 9974 | dprintf("imsm: imsm_reshape_is_allowed_on_container(ENTER): st->devnm = (%s)\n", st->devnm); |
78b10e66 | 9975 | |
d04f65f4 | 9976 | if (geo->size > 0 || |
78b10e66 N |
9977 | geo->level != UnSet || |
9978 | geo->layout != UnSet || | |
9979 | geo->chunksize != 0 || | |
9980 | geo->raid_disks == UnSet) { | |
7a862a02 | 9981 | dprintf("imsm: Container operation is allowed for raid disks number change only.\n"); |
78b10e66 N |
9982 | return ret_val; |
9983 | } | |
9984 | ||
fbf3d202 | 9985 | if (direction == ROLLBACK_METADATA_CHANGES) { |
7a862a02 | 9986 | dprintf("imsm: Metadata changes rollback is not supported for container operation.\n"); |
fbf3d202 AK |
9987 | return ret_val; |
9988 | } | |
9989 | ||
78b10e66 N |
9990 | info = container_content_imsm(st, NULL); |
9991 | for (member = info; member; member = member->next) { | |
4dd2df09 | 9992 | char *result; |
78b10e66 N |
9993 | |
9994 | dprintf("imsm: checking device_num: %i\n", | |
9995 | member->container_member); | |
9996 | ||
d7d205bd | 9997 | if (geo->raid_disks <= member->array.raid_disks) { |
78b10e66 N |
9998 | /* we work on container for Online Capacity Expansion |
9999 | * only so raid_disks has to grow | |
10000 | */ | |
7a862a02 | 10001 | dprintf("imsm: for container operation raid disks increase is required\n"); |
78b10e66 N |
10002 | break; |
10003 | } | |
10004 | ||
089f9d79 | 10005 | if (info->array.level != 0 && info->array.level != 5) { |
78b10e66 N |
10006 | /* we cannot use this container with other raid level |
10007 | */ | |
7a862a02 | 10008 | dprintf("imsm: for container operation wrong raid level (%i) detected\n", |
78b10e66 N |
10009 | info->array.level); |
10010 | break; | |
10011 | } else { | |
10012 | /* check for platform support | |
10013 | * for this raid level configuration | |
10014 | */ | |
10015 | struct intel_super *super = st->sb; | |
10016 | if (!is_raid_level_supported(super->orom, | |
10017 | member->array.level, | |
10018 | geo->raid_disks)) { | |
7a862a02 | 10019 | dprintf("platform does not support raid%d with %d disk%s\n", |
78b10e66 N |
10020 | info->array.level, |
10021 | geo->raid_disks, | |
10022 | geo->raid_disks > 1 ? "s" : ""); | |
10023 | break; | |
10024 | } | |
2a4a08e7 AK |
10025 | /* check if component size is aligned to chunk size |
10026 | */ | |
10027 | if (info->component_size % | |
10028 | (info->array.chunk_size/512)) { | |
7a862a02 | 10029 | dprintf("Component size is not aligned to chunk size\n"); |
2a4a08e7 AK |
10030 | break; |
10031 | } | |
78b10e66 N |
10032 | } |
10033 | ||
10034 | if (*old_raid_disks && | |
10035 | info->array.raid_disks != *old_raid_disks) | |
10036 | break; | |
10037 | *old_raid_disks = info->array.raid_disks; | |
10038 | ||
10039 | /* All raid5 and raid0 volumes in container | |
10040 | * have to be ready for Online Capacity Expansion | |
10041 | * so they need to be assembled. We have already | |
10042 | * checked that no recovery etc is happening. | |
10043 | */ | |
4dd2df09 N |
10044 | result = imsm_find_array_devnm_by_subdev(member->container_member, |
10045 | st->container_devnm); | |
10046 | if (result == NULL) { | |
78b10e66 N |
10047 | dprintf("imsm: cannot find array\n"); |
10048 | break; | |
10049 | } | |
10050 | devices_that_can_grow++; | |
10051 | } | |
10052 | sysfs_free(info); | |
10053 | if (!member && devices_that_can_grow) | |
10054 | ret_val = 1; | |
10055 | ||
10056 | if (ret_val) | |
1ade5cc1 | 10057 | dprintf("Container operation allowed\n"); |
78b10e66 | 10058 | else |
1ade5cc1 | 10059 | dprintf("Error: %i\n", ret_val); |
78b10e66 N |
10060 | |
10061 | return ret_val; | |
10062 | } | |
10063 | ||
10064 | /* Function: get_spares_for_grow | |
10065 | * Description: Allocates memory and creates list of spare devices | |
1011e834 | 10066 | * avaliable in container. Checks if spare drive size is acceptable. |
78b10e66 N |
10067 | * Parameters: Pointer to the supertype structure |
10068 | * Returns: Pointer to the list of spare devices (mdinfo structure) on success, | |
1011e834 | 10069 | * NULL if fail |
78b10e66 N |
10070 | */ |
10071 | static struct mdinfo *get_spares_for_grow(struct supertype *st) | |
10072 | { | |
78b10e66 | 10073 | unsigned long long min_size = min_acceptable_spare_size_imsm(st); |
326727d9 | 10074 | return container_choose_spares(st, min_size, NULL, NULL, NULL, 0); |
78b10e66 N |
10075 | } |
10076 | ||
10077 | /****************************************************************************** | |
10078 | * function: imsm_create_metadata_update_for_reshape | |
10079 | * Function creates update for whole IMSM container. | |
10080 | * | |
10081 | ******************************************************************************/ | |
10082 | static int imsm_create_metadata_update_for_reshape( | |
10083 | struct supertype *st, | |
10084 | struct geo_params *geo, | |
10085 | int old_raid_disks, | |
10086 | struct imsm_update_reshape **updatep) | |
10087 | { | |
10088 | struct intel_super *super = st->sb; | |
10089 | struct imsm_super *mpb = super->anchor; | |
594dc1b8 JS |
10090 | int update_memory_size; |
10091 | struct imsm_update_reshape *u; | |
10092 | struct mdinfo *spares; | |
78b10e66 | 10093 | int i; |
594dc1b8 | 10094 | int delta_disks; |
bbd24d86 | 10095 | struct mdinfo *dev; |
78b10e66 | 10096 | |
1ade5cc1 | 10097 | dprintf("(enter) raid_disks = %i\n", geo->raid_disks); |
78b10e66 N |
10098 | |
10099 | delta_disks = geo->raid_disks - old_raid_disks; | |
10100 | ||
10101 | /* size of all update data without anchor */ | |
10102 | update_memory_size = sizeof(struct imsm_update_reshape); | |
10103 | ||
10104 | /* now add space for spare disks that we need to add. */ | |
10105 | update_memory_size += sizeof(u->new_disks[0]) * (delta_disks - 1); | |
10106 | ||
503975b9 | 10107 | u = xcalloc(1, update_memory_size); |
78b10e66 N |
10108 | u->type = update_reshape_container_disks; |
10109 | u->old_raid_disks = old_raid_disks; | |
10110 | u->new_raid_disks = geo->raid_disks; | |
10111 | ||
10112 | /* now get spare disks list | |
10113 | */ | |
10114 | spares = get_spares_for_grow(st); | |
10115 | ||
10116 | if (spares == NULL | |
10117 | || delta_disks > spares->array.spare_disks) { | |
7a862a02 | 10118 | pr_err("imsm: ERROR: Cannot get spare devices for %s.\n", geo->dev_name); |
e4c72d1d | 10119 | i = -1; |
78b10e66 N |
10120 | goto abort; |
10121 | } | |
10122 | ||
10123 | /* we have got spares | |
10124 | * update disk list in imsm_disk list table in anchor | |
10125 | */ | |
10126 | dprintf("imsm: %i spares are available.\n\n", | |
10127 | spares->array.spare_disks); | |
10128 | ||
bbd24d86 | 10129 | dev = spares->devs; |
78b10e66 | 10130 | for (i = 0; i < delta_disks; i++) { |
78b10e66 N |
10131 | struct dl *dl; |
10132 | ||
bbd24d86 AK |
10133 | if (dev == NULL) |
10134 | break; | |
78b10e66 N |
10135 | u->new_disks[i] = makedev(dev->disk.major, |
10136 | dev->disk.minor); | |
10137 | dl = get_disk_super(super, dev->disk.major, dev->disk.minor); | |
ee4beede AK |
10138 | dl->index = mpb->num_disks; |
10139 | mpb->num_disks++; | |
bbd24d86 | 10140 | dev = dev->next; |
78b10e66 | 10141 | } |
78b10e66 N |
10142 | |
10143 | abort: | |
10144 | /* free spares | |
10145 | */ | |
10146 | sysfs_free(spares); | |
10147 | ||
d677e0b8 | 10148 | dprintf("imsm: reshape update preparation :"); |
78b10e66 | 10149 | if (i == delta_disks) { |
1ade5cc1 | 10150 | dprintf_cont(" OK\n"); |
78b10e66 N |
10151 | *updatep = u; |
10152 | return update_memory_size; | |
10153 | } | |
10154 | free(u); | |
1ade5cc1 | 10155 | dprintf_cont(" Error\n"); |
78b10e66 N |
10156 | |
10157 | return 0; | |
10158 | } | |
10159 | ||
f3871fdc AK |
10160 | /****************************************************************************** |
10161 | * function: imsm_create_metadata_update_for_size_change() | |
10162 | * Creates update for IMSM array for array size change. | |
10163 | * | |
10164 | ******************************************************************************/ | |
10165 | static int imsm_create_metadata_update_for_size_change( | |
10166 | struct supertype *st, | |
10167 | struct geo_params *geo, | |
10168 | struct imsm_update_size_change **updatep) | |
10169 | { | |
10170 | struct intel_super *super = st->sb; | |
594dc1b8 JS |
10171 | int update_memory_size; |
10172 | struct imsm_update_size_change *u; | |
f3871fdc | 10173 | |
1ade5cc1 | 10174 | dprintf("(enter) New size = %llu\n", geo->size); |
f3871fdc AK |
10175 | |
10176 | /* size of all update data without anchor */ | |
10177 | update_memory_size = sizeof(struct imsm_update_size_change); | |
10178 | ||
503975b9 | 10179 | u = xcalloc(1, update_memory_size); |
f3871fdc AK |
10180 | u->type = update_size_change; |
10181 | u->subdev = super->current_vol; | |
10182 | u->new_size = geo->size; | |
10183 | ||
10184 | dprintf("imsm: reshape update preparation : OK\n"); | |
10185 | *updatep = u; | |
10186 | ||
10187 | return update_memory_size; | |
10188 | } | |
10189 | ||
48c5303a PC |
10190 | /****************************************************************************** |
10191 | * function: imsm_create_metadata_update_for_migration() | |
10192 | * Creates update for IMSM array. | |
10193 | * | |
10194 | ******************************************************************************/ | |
10195 | static int imsm_create_metadata_update_for_migration( | |
10196 | struct supertype *st, | |
10197 | struct geo_params *geo, | |
10198 | struct imsm_update_reshape_migration **updatep) | |
10199 | { | |
10200 | struct intel_super *super = st->sb; | |
594dc1b8 JS |
10201 | int update_memory_size; |
10202 | struct imsm_update_reshape_migration *u; | |
48c5303a PC |
10203 | struct imsm_dev *dev; |
10204 | int previous_level = -1; | |
10205 | ||
1ade5cc1 | 10206 | dprintf("(enter) New Level = %i\n", geo->level); |
48c5303a PC |
10207 | |
10208 | /* size of all update data without anchor */ | |
10209 | update_memory_size = sizeof(struct imsm_update_reshape_migration); | |
10210 | ||
503975b9 | 10211 | u = xcalloc(1, update_memory_size); |
48c5303a PC |
10212 | u->type = update_reshape_migration; |
10213 | u->subdev = super->current_vol; | |
10214 | u->new_level = geo->level; | |
10215 | u->new_layout = geo->layout; | |
10216 | u->new_raid_disks = u->old_raid_disks = geo->raid_disks; | |
10217 | u->new_disks[0] = -1; | |
4bba0439 | 10218 | u->new_chunksize = -1; |
48c5303a PC |
10219 | |
10220 | dev = get_imsm_dev(super, u->subdev); | |
10221 | if (dev) { | |
10222 | struct imsm_map *map; | |
10223 | ||
238c0a71 | 10224 | map = get_imsm_map(dev, MAP_0); |
4bba0439 PC |
10225 | if (map) { |
10226 | int current_chunk_size = | |
10227 | __le16_to_cpu(map->blocks_per_strip) / 2; | |
10228 | ||
10229 | if (geo->chunksize != current_chunk_size) { | |
10230 | u->new_chunksize = geo->chunksize / 1024; | |
7a862a02 | 10231 | dprintf("imsm: chunk size change from %i to %i\n", |
4bba0439 PC |
10232 | current_chunk_size, u->new_chunksize); |
10233 | } | |
48c5303a | 10234 | previous_level = map->raid_level; |
4bba0439 | 10235 | } |
48c5303a | 10236 | } |
089f9d79 | 10237 | if (geo->level == 5 && previous_level == 0) { |
48c5303a PC |
10238 | struct mdinfo *spares = NULL; |
10239 | ||
10240 | u->new_raid_disks++; | |
10241 | spares = get_spares_for_grow(st); | |
089f9d79 | 10242 | if (spares == NULL || spares->array.spare_disks < 1) { |
48c5303a PC |
10243 | free(u); |
10244 | sysfs_free(spares); | |
10245 | update_memory_size = 0; | |
7a862a02 | 10246 | dprintf("error: cannot get spare device for requested migration"); |
48c5303a PC |
10247 | return 0; |
10248 | } | |
10249 | sysfs_free(spares); | |
10250 | } | |
10251 | dprintf("imsm: reshape update preparation : OK\n"); | |
10252 | *updatep = u; | |
10253 | ||
10254 | return update_memory_size; | |
10255 | } | |
10256 | ||
8dd70bce AK |
10257 | static void imsm_update_metadata_locally(struct supertype *st, |
10258 | void *buf, int len) | |
10259 | { | |
10260 | struct metadata_update mu; | |
10261 | ||
10262 | mu.buf = buf; | |
10263 | mu.len = len; | |
10264 | mu.space = NULL; | |
10265 | mu.space_list = NULL; | |
10266 | mu.next = NULL; | |
5fe6f031 N |
10267 | if (imsm_prepare_update(st, &mu)) |
10268 | imsm_process_update(st, &mu); | |
8dd70bce AK |
10269 | |
10270 | while (mu.space_list) { | |
10271 | void **space = mu.space_list; | |
10272 | mu.space_list = *space; | |
10273 | free(space); | |
10274 | } | |
10275 | } | |
78b10e66 | 10276 | |
471bceb6 | 10277 | /*************************************************************************** |
694575e7 | 10278 | * Function: imsm_analyze_change |
471bceb6 | 10279 | * Description: Function analyze change for single volume |
1011e834 | 10280 | * and validate if transition is supported |
fbf3d202 AK |
10281 | * Parameters: Geometry parameters, supertype structure, |
10282 | * metadata change direction (apply/rollback) | |
694575e7 | 10283 | * Returns: Operation type code on success, -1 if fail |
471bceb6 KW |
10284 | ****************************************************************************/ |
10285 | enum imsm_reshape_type imsm_analyze_change(struct supertype *st, | |
fbf3d202 AK |
10286 | struct geo_params *geo, |
10287 | int direction) | |
694575e7 | 10288 | { |
471bceb6 KW |
10289 | struct mdinfo info; |
10290 | int change = -1; | |
10291 | int check_devs = 0; | |
c21e737b | 10292 | int chunk; |
67a2db32 AK |
10293 | /* number of added/removed disks in operation result */ |
10294 | int devNumChange = 0; | |
10295 | /* imsm compatible layout value for array geometry verification */ | |
10296 | int imsm_layout = -1; | |
7abc9871 AK |
10297 | int data_disks; |
10298 | struct imsm_dev *dev; | |
10299 | struct intel_super *super; | |
d04f65f4 | 10300 | unsigned long long current_size; |
65d38cca | 10301 | unsigned long long free_size; |
d04f65f4 | 10302 | unsigned long long max_size; |
65d38cca | 10303 | int rv; |
471bceb6 KW |
10304 | |
10305 | getinfo_super_imsm_volume(st, &info, NULL); | |
089f9d79 JS |
10306 | if (geo->level != info.array.level && geo->level >= 0 && |
10307 | geo->level != UnSet) { | |
471bceb6 KW |
10308 | switch (info.array.level) { |
10309 | case 0: | |
10310 | if (geo->level == 5) { | |
b5347799 | 10311 | change = CH_MIGRATION; |
e13ce846 | 10312 | if (geo->layout != ALGORITHM_LEFT_ASYMMETRIC) { |
7a862a02 | 10313 | pr_err("Error. Requested Layout not supported (left-asymmetric layout is supported only)!\n"); |
e13ce846 AK |
10314 | change = -1; |
10315 | goto analyse_change_exit; | |
10316 | } | |
67a2db32 | 10317 | imsm_layout = geo->layout; |
471bceb6 | 10318 | check_devs = 1; |
e91a3bad LM |
10319 | devNumChange = 1; /* parity disk added */ |
10320 | } else if (geo->level == 10) { | |
471bceb6 KW |
10321 | change = CH_TAKEOVER; |
10322 | check_devs = 1; | |
e91a3bad | 10323 | devNumChange = 2; /* two mirrors added */ |
67a2db32 | 10324 | imsm_layout = 0x102; /* imsm supported layout */ |
471bceb6 | 10325 | } |
dfe77a9e KW |
10326 | break; |
10327 | case 1: | |
471bceb6 KW |
10328 | case 10: |
10329 | if (geo->level == 0) { | |
10330 | change = CH_TAKEOVER; | |
10331 | check_devs = 1; | |
e91a3bad | 10332 | devNumChange = -(geo->raid_disks/2); |
67a2db32 | 10333 | imsm_layout = 0; /* imsm raid0 layout */ |
471bceb6 KW |
10334 | } |
10335 | break; | |
10336 | } | |
10337 | if (change == -1) { | |
7a862a02 | 10338 | pr_err("Error. Level Migration from %d to %d not supported!\n", |
e7b84f9d | 10339 | info.array.level, geo->level); |
471bceb6 KW |
10340 | goto analyse_change_exit; |
10341 | } | |
10342 | } else | |
10343 | geo->level = info.array.level; | |
10344 | ||
089f9d79 JS |
10345 | if (geo->layout != info.array.layout && |
10346 | (geo->layout != UnSet && geo->layout != -1)) { | |
b5347799 | 10347 | change = CH_MIGRATION; |
089f9d79 JS |
10348 | if (info.array.layout == 0 && info.array.level == 5 && |
10349 | geo->layout == 5) { | |
471bceb6 | 10350 | /* reshape 5 -> 4 */ |
089f9d79 JS |
10351 | } else if (info.array.layout == 5 && info.array.level == 5 && |
10352 | geo->layout == 0) { | |
471bceb6 KW |
10353 | /* reshape 4 -> 5 */ |
10354 | geo->layout = 0; | |
10355 | geo->level = 5; | |
10356 | } else { | |
7a862a02 | 10357 | pr_err("Error. Layout Migration from %d to %d not supported!\n", |
e7b84f9d | 10358 | info.array.layout, geo->layout); |
471bceb6 KW |
10359 | change = -1; |
10360 | goto analyse_change_exit; | |
10361 | } | |
67a2db32 | 10362 | } else { |
471bceb6 | 10363 | geo->layout = info.array.layout; |
67a2db32 AK |
10364 | if (imsm_layout == -1) |
10365 | imsm_layout = info.array.layout; | |
10366 | } | |
471bceb6 | 10367 | |
089f9d79 JS |
10368 | if (geo->chunksize > 0 && geo->chunksize != UnSet && |
10369 | geo->chunksize != info.array.chunk_size) { | |
2d2b0eb7 MD |
10370 | if (info.array.level == 10) { |
10371 | pr_err("Error. Chunk size change for RAID 10 is not supported.\n"); | |
10372 | change = -1; | |
10373 | goto analyse_change_exit; | |
10374 | } | |
b5347799 | 10375 | change = CH_MIGRATION; |
2d2b0eb7 | 10376 | } else { |
471bceb6 | 10377 | geo->chunksize = info.array.chunk_size; |
2d2b0eb7 | 10378 | } |
471bceb6 | 10379 | |
c21e737b | 10380 | chunk = geo->chunksize / 1024; |
7abc9871 AK |
10381 | |
10382 | super = st->sb; | |
10383 | dev = get_imsm_dev(super, super->current_vol); | |
10384 | data_disks = imsm_num_data_members(dev , MAP_0); | |
c41e00b2 | 10385 | /* compute current size per disk member |
7abc9871 | 10386 | */ |
c41e00b2 AK |
10387 | current_size = info.custom_array_size / data_disks; |
10388 | ||
089f9d79 | 10389 | if (geo->size > 0 && geo->size != MAX_SIZE) { |
c41e00b2 AK |
10390 | /* align component size |
10391 | */ | |
10392 | geo->size = imsm_component_size_aligment_check( | |
10393 | get_imsm_raid_level(dev->vol.map), | |
f36a9ecd | 10394 | chunk * 1024, super->sector_size, |
c41e00b2 | 10395 | geo->size * 2); |
65d0b4ce | 10396 | if (geo->size == 0) { |
7a862a02 | 10397 | pr_err("Error. Size expansion is supported only (current size is %llu, requested size /rounded/ is 0).\n", |
65d0b4ce LD |
10398 | current_size); |
10399 | goto analyse_change_exit; | |
10400 | } | |
c41e00b2 | 10401 | } |
7abc9871 | 10402 | |
089f9d79 | 10403 | if (current_size != geo->size && geo->size > 0) { |
7abc9871 | 10404 | if (change != -1) { |
7a862a02 | 10405 | pr_err("Error. Size change should be the only one at a time.\n"); |
7abc9871 AK |
10406 | change = -1; |
10407 | goto analyse_change_exit; | |
10408 | } | |
10409 | if ((super->current_vol + 1) != super->anchor->num_raid_devs) { | |
7a862a02 | 10410 | pr_err("Error. The last volume in container can be expanded only (%i/%s).\n", |
4dd2df09 | 10411 | super->current_vol, st->devnm); |
7abc9871 AK |
10412 | goto analyse_change_exit; |
10413 | } | |
65d38cca LD |
10414 | /* check the maximum available size |
10415 | */ | |
10416 | rv = imsm_get_free_size(st, dev->vol.map->num_members, | |
10417 | 0, chunk, &free_size); | |
10418 | if (rv == 0) | |
10419 | /* Cannot find maximum available space | |
10420 | */ | |
10421 | max_size = 0; | |
10422 | else { | |
10423 | max_size = free_size + current_size; | |
10424 | /* align component size | |
10425 | */ | |
10426 | max_size = imsm_component_size_aligment_check( | |
10427 | get_imsm_raid_level(dev->vol.map), | |
f36a9ecd | 10428 | chunk * 1024, super->sector_size, |
65d38cca LD |
10429 | max_size); |
10430 | } | |
d04f65f4 | 10431 | if (geo->size == MAX_SIZE) { |
b130333f AK |
10432 | /* requested size change to the maximum available size |
10433 | */ | |
65d38cca | 10434 | if (max_size == 0) { |
7a862a02 | 10435 | pr_err("Error. Cannot find maximum available space.\n"); |
b130333f AK |
10436 | change = -1; |
10437 | goto analyse_change_exit; | |
65d38cca LD |
10438 | } else |
10439 | geo->size = max_size; | |
c41e00b2 | 10440 | } |
b130333f | 10441 | |
681b7ae2 | 10442 | if (direction == ROLLBACK_METADATA_CHANGES) { |
fbf3d202 AK |
10443 | /* accept size for rollback only |
10444 | */ | |
10445 | } else { | |
10446 | /* round size due to metadata compatibility | |
10447 | */ | |
10448 | geo->size = (geo->size >> SECT_PER_MB_SHIFT) | |
10449 | << SECT_PER_MB_SHIFT; | |
10450 | dprintf("Prepare update for size change to %llu\n", | |
10451 | geo->size ); | |
10452 | if (current_size >= geo->size) { | |
7a862a02 | 10453 | pr_err("Error. Size expansion is supported only (current size is %llu, requested size /rounded/ is %llu).\n", |
e7b84f9d | 10454 | current_size, geo->size); |
fbf3d202 AK |
10455 | goto analyse_change_exit; |
10456 | } | |
65d38cca | 10457 | if (max_size && geo->size > max_size) { |
7a862a02 | 10458 | pr_err("Error. Requested size is larger than maximum available size (maximum available size is %llu, requested size /rounded/ is %llu).\n", |
e7b84f9d | 10459 | max_size, geo->size); |
65d38cca LD |
10460 | goto analyse_change_exit; |
10461 | } | |
7abc9871 AK |
10462 | } |
10463 | geo->size *= data_disks; | |
10464 | geo->raid_disks = dev->vol.map->num_members; | |
10465 | change = CH_ARRAY_SIZE; | |
10466 | } | |
471bceb6 KW |
10467 | if (!validate_geometry_imsm(st, |
10468 | geo->level, | |
67a2db32 | 10469 | imsm_layout, |
e91a3bad | 10470 | geo->raid_disks + devNumChange, |
c21e737b | 10471 | &chunk, |
af4348dd | 10472 | geo->size, INVALID_SECTORS, |
471bceb6 KW |
10473 | 0, 0, 1)) |
10474 | change = -1; | |
10475 | ||
10476 | if (check_devs) { | |
10477 | struct intel_super *super = st->sb; | |
10478 | struct imsm_super *mpb = super->anchor; | |
10479 | ||
10480 | if (mpb->num_raid_devs > 1) { | |
7a862a02 | 10481 | pr_err("Error. Cannot perform operation on %s- for this operation it MUST be single array in container\n", |
e7b84f9d | 10482 | geo->dev_name); |
471bceb6 KW |
10483 | change = -1; |
10484 | } | |
10485 | } | |
10486 | ||
10487 | analyse_change_exit: | |
089f9d79 JS |
10488 | if (direction == ROLLBACK_METADATA_CHANGES && |
10489 | (change == CH_MIGRATION || change == CH_TAKEOVER)) { | |
7a862a02 | 10490 | dprintf("imsm: Metadata changes rollback is not supported for migration and takeover operations.\n"); |
fbf3d202 AK |
10491 | change = -1; |
10492 | } | |
471bceb6 | 10493 | return change; |
694575e7 KW |
10494 | } |
10495 | ||
bb025c2f KW |
10496 | int imsm_takeover(struct supertype *st, struct geo_params *geo) |
10497 | { | |
10498 | struct intel_super *super = st->sb; | |
10499 | struct imsm_update_takeover *u; | |
10500 | ||
503975b9 | 10501 | u = xmalloc(sizeof(struct imsm_update_takeover)); |
bb025c2f KW |
10502 | |
10503 | u->type = update_takeover; | |
10504 | u->subarray = super->current_vol; | |
10505 | ||
10506 | /* 10->0 transition */ | |
10507 | if (geo->level == 0) | |
10508 | u->direction = R10_TO_R0; | |
10509 | ||
0529c688 KW |
10510 | /* 0->10 transition */ |
10511 | if (geo->level == 10) | |
10512 | u->direction = R0_TO_R10; | |
10513 | ||
bb025c2f KW |
10514 | /* update metadata locally */ |
10515 | imsm_update_metadata_locally(st, u, | |
10516 | sizeof(struct imsm_update_takeover)); | |
10517 | /* and possibly remotely */ | |
10518 | if (st->update_tail) | |
10519 | append_metadata_update(st, u, | |
10520 | sizeof(struct imsm_update_takeover)); | |
10521 | else | |
10522 | free(u); | |
10523 | ||
10524 | return 0; | |
10525 | } | |
10526 | ||
d04f65f4 N |
10527 | static int imsm_reshape_super(struct supertype *st, unsigned long long size, |
10528 | int level, | |
78b10e66 | 10529 | int layout, int chunksize, int raid_disks, |
41784c88 | 10530 | int delta_disks, char *backup, char *dev, |
016e00f5 | 10531 | int direction, int verbose) |
78b10e66 | 10532 | { |
78b10e66 N |
10533 | int ret_val = 1; |
10534 | struct geo_params geo; | |
10535 | ||
1ade5cc1 | 10536 | dprintf("(enter)\n"); |
78b10e66 | 10537 | |
71204a50 | 10538 | memset(&geo, 0, sizeof(struct geo_params)); |
78b10e66 N |
10539 | |
10540 | geo.dev_name = dev; | |
4dd2df09 | 10541 | strcpy(geo.devnm, st->devnm); |
78b10e66 N |
10542 | geo.size = size; |
10543 | geo.level = level; | |
10544 | geo.layout = layout; | |
10545 | geo.chunksize = chunksize; | |
10546 | geo.raid_disks = raid_disks; | |
41784c88 AK |
10547 | if (delta_disks != UnSet) |
10548 | geo.raid_disks += delta_disks; | |
78b10e66 | 10549 | |
1ade5cc1 N |
10550 | dprintf("for level : %i\n", geo.level); |
10551 | dprintf("for raid_disks : %i\n", geo.raid_disks); | |
78b10e66 N |
10552 | |
10553 | if (experimental() == 0) | |
10554 | return ret_val; | |
10555 | ||
4dd2df09 | 10556 | if (strcmp(st->container_devnm, st->devnm) == 0) { |
694575e7 KW |
10557 | /* On container level we can only increase number of devices. */ |
10558 | dprintf("imsm: info: Container operation\n"); | |
78b10e66 | 10559 | int old_raid_disks = 0; |
6dc0be30 | 10560 | |
78b10e66 | 10561 | if (imsm_reshape_is_allowed_on_container( |
fbf3d202 | 10562 | st, &geo, &old_raid_disks, direction)) { |
78b10e66 N |
10563 | struct imsm_update_reshape *u = NULL; |
10564 | int len; | |
10565 | ||
10566 | len = imsm_create_metadata_update_for_reshape( | |
10567 | st, &geo, old_raid_disks, &u); | |
10568 | ||
ed08d51c AK |
10569 | if (len <= 0) { |
10570 | dprintf("imsm: Cannot prepare update\n"); | |
10571 | goto exit_imsm_reshape_super; | |
10572 | } | |
10573 | ||
8dd70bce AK |
10574 | ret_val = 0; |
10575 | /* update metadata locally */ | |
10576 | imsm_update_metadata_locally(st, u, len); | |
10577 | /* and possibly remotely */ | |
10578 | if (st->update_tail) | |
10579 | append_metadata_update(st, u, len); | |
10580 | else | |
ed08d51c | 10581 | free(u); |
8dd70bce | 10582 | |
694575e7 | 10583 | } else { |
7a862a02 | 10584 | pr_err("(imsm) Operation is not allowed on this container\n"); |
694575e7 KW |
10585 | } |
10586 | } else { | |
10587 | /* On volume level we support following operations | |
471bceb6 KW |
10588 | * - takeover: raid10 -> raid0; raid0 -> raid10 |
10589 | * - chunk size migration | |
10590 | * - migration: raid5 -> raid0; raid0 -> raid5 | |
10591 | */ | |
10592 | struct intel_super *super = st->sb; | |
10593 | struct intel_dev *dev = super->devlist; | |
4dd2df09 | 10594 | int change; |
694575e7 | 10595 | dprintf("imsm: info: Volume operation\n"); |
471bceb6 KW |
10596 | /* find requested device */ |
10597 | while (dev) { | |
1011e834 | 10598 | char *devnm = |
4dd2df09 N |
10599 | imsm_find_array_devnm_by_subdev( |
10600 | dev->index, st->container_devnm); | |
10601 | if (devnm && strcmp(devnm, geo.devnm) == 0) | |
471bceb6 KW |
10602 | break; |
10603 | dev = dev->next; | |
10604 | } | |
10605 | if (dev == NULL) { | |
4dd2df09 N |
10606 | pr_err("Cannot find %s (%s) subarray\n", |
10607 | geo.dev_name, geo.devnm); | |
471bceb6 KW |
10608 | goto exit_imsm_reshape_super; |
10609 | } | |
10610 | super->current_vol = dev->index; | |
fbf3d202 | 10611 | change = imsm_analyze_change(st, &geo, direction); |
694575e7 | 10612 | switch (change) { |
471bceb6 | 10613 | case CH_TAKEOVER: |
bb025c2f | 10614 | ret_val = imsm_takeover(st, &geo); |
694575e7 | 10615 | break; |
48c5303a PC |
10616 | case CH_MIGRATION: { |
10617 | struct imsm_update_reshape_migration *u = NULL; | |
10618 | int len = | |
10619 | imsm_create_metadata_update_for_migration( | |
10620 | st, &geo, &u); | |
10621 | if (len < 1) { | |
7a862a02 | 10622 | dprintf("imsm: Cannot prepare update\n"); |
48c5303a PC |
10623 | break; |
10624 | } | |
471bceb6 | 10625 | ret_val = 0; |
48c5303a PC |
10626 | /* update metadata locally */ |
10627 | imsm_update_metadata_locally(st, u, len); | |
10628 | /* and possibly remotely */ | |
10629 | if (st->update_tail) | |
10630 | append_metadata_update(st, u, len); | |
10631 | else | |
10632 | free(u); | |
10633 | } | |
10634 | break; | |
7abc9871 | 10635 | case CH_ARRAY_SIZE: { |
f3871fdc AK |
10636 | struct imsm_update_size_change *u = NULL; |
10637 | int len = | |
10638 | imsm_create_metadata_update_for_size_change( | |
10639 | st, &geo, &u); | |
10640 | if (len < 1) { | |
7a862a02 | 10641 | dprintf("imsm: Cannot prepare update\n"); |
f3871fdc AK |
10642 | break; |
10643 | } | |
10644 | ret_val = 0; | |
10645 | /* update metadata locally */ | |
10646 | imsm_update_metadata_locally(st, u, len); | |
10647 | /* and possibly remotely */ | |
10648 | if (st->update_tail) | |
10649 | append_metadata_update(st, u, len); | |
10650 | else | |
10651 | free(u); | |
7abc9871 AK |
10652 | } |
10653 | break; | |
471bceb6 KW |
10654 | default: |
10655 | ret_val = 1; | |
694575e7 | 10656 | } |
694575e7 | 10657 | } |
78b10e66 | 10658 | |
ed08d51c | 10659 | exit_imsm_reshape_super: |
78b10e66 N |
10660 | dprintf("imsm: reshape_super Exit code = %i\n", ret_val); |
10661 | return ret_val; | |
10662 | } | |
2cda7640 | 10663 | |
0febb20c AO |
10664 | #define COMPLETED_OK 0 |
10665 | #define COMPLETED_NONE 1 | |
10666 | #define COMPLETED_DELAYED 2 | |
10667 | ||
10668 | static int read_completed(int fd, unsigned long long *val) | |
10669 | { | |
10670 | int ret; | |
10671 | char buf[50]; | |
10672 | ||
10673 | ret = sysfs_fd_get_str(fd, buf, 50); | |
10674 | if (ret < 0) | |
10675 | return ret; | |
10676 | ||
10677 | ret = COMPLETED_OK; | |
10678 | if (strncmp(buf, "none", 4) == 0) { | |
10679 | ret = COMPLETED_NONE; | |
10680 | } else if (strncmp(buf, "delayed", 7) == 0) { | |
10681 | ret = COMPLETED_DELAYED; | |
10682 | } else { | |
10683 | char *ep; | |
10684 | *val = strtoull(buf, &ep, 0); | |
10685 | if (ep == buf || (*ep != 0 && *ep != '\n' && *ep != ' ')) | |
10686 | ret = -1; | |
10687 | } | |
10688 | return ret; | |
10689 | } | |
10690 | ||
eee67a47 AK |
10691 | /******************************************************************************* |
10692 | * Function: wait_for_reshape_imsm | |
10693 | * Description: Function writes new sync_max value and waits until | |
10694 | * reshape process reach new position | |
10695 | * Parameters: | |
10696 | * sra : general array info | |
eee67a47 AK |
10697 | * ndata : number of disks in new array's layout |
10698 | * Returns: | |
10699 | * 0 : success, | |
10700 | * 1 : there is no reshape in progress, | |
10701 | * -1 : fail | |
10702 | ******************************************************************************/ | |
ae9f01f8 | 10703 | int wait_for_reshape_imsm(struct mdinfo *sra, int ndata) |
eee67a47 | 10704 | { |
85ca499c | 10705 | int fd = sysfs_get_fd(sra, NULL, "sync_completed"); |
df2647fa | 10706 | int retry = 3; |
eee67a47 | 10707 | unsigned long long completed; |
ae9f01f8 AK |
10708 | /* to_complete : new sync_max position */ |
10709 | unsigned long long to_complete = sra->reshape_progress; | |
10710 | unsigned long long position_to_set = to_complete / ndata; | |
eee67a47 | 10711 | |
ae9f01f8 | 10712 | if (fd < 0) { |
1ade5cc1 | 10713 | dprintf("cannot open reshape_position\n"); |
eee67a47 | 10714 | return 1; |
ae9f01f8 | 10715 | } |
eee67a47 | 10716 | |
df2647fa PB |
10717 | do { |
10718 | if (sysfs_fd_get_ll(fd, &completed) < 0) { | |
10719 | if (!retry) { | |
10720 | dprintf("cannot read reshape_position (no reshape in progres)\n"); | |
10721 | close(fd); | |
10722 | return 1; | |
10723 | } | |
10724 | usleep(30000); | |
10725 | } else | |
10726 | break; | |
10727 | } while (retry--); | |
eee67a47 | 10728 | |
85ca499c | 10729 | if (completed > position_to_set) { |
1ade5cc1 | 10730 | dprintf("wrong next position to set %llu (%llu)\n", |
85ca499c | 10731 | to_complete, position_to_set); |
ae9f01f8 AK |
10732 | close(fd); |
10733 | return -1; | |
10734 | } | |
10735 | dprintf("Position set: %llu\n", position_to_set); | |
10736 | if (sysfs_set_num(sra, NULL, "sync_max", | |
10737 | position_to_set) != 0) { | |
1ade5cc1 | 10738 | dprintf("cannot set reshape position to %llu\n", |
ae9f01f8 AK |
10739 | position_to_set); |
10740 | close(fd); | |
10741 | return -1; | |
eee67a47 AK |
10742 | } |
10743 | ||
eee67a47 | 10744 | do { |
0febb20c | 10745 | int rc; |
eee67a47 | 10746 | char action[20]; |
5ff3a780 | 10747 | int timeout = 3000; |
0febb20c | 10748 | |
5ff3a780 | 10749 | sysfs_wait(fd, &timeout); |
a47e44fb AK |
10750 | if (sysfs_get_str(sra, NULL, "sync_action", |
10751 | action, 20) > 0 && | |
d7d3809a | 10752 | strncmp(action, "reshape", 7) != 0) { |
b2be2b62 AO |
10753 | if (strncmp(action, "idle", 4) == 0) |
10754 | break; | |
d7d3809a AP |
10755 | close(fd); |
10756 | return -1; | |
10757 | } | |
0febb20c AO |
10758 | |
10759 | rc = read_completed(fd, &completed); | |
10760 | if (rc < 0) { | |
1ade5cc1 | 10761 | dprintf("cannot read reshape_position (in loop)\n"); |
eee67a47 AK |
10762 | close(fd); |
10763 | return 1; | |
0febb20c AO |
10764 | } else if (rc == COMPLETED_NONE) |
10765 | break; | |
85ca499c | 10766 | } while (completed < position_to_set); |
b2be2b62 | 10767 | |
eee67a47 AK |
10768 | close(fd); |
10769 | return 0; | |
eee67a47 AK |
10770 | } |
10771 | ||
b915c95f AK |
10772 | /******************************************************************************* |
10773 | * Function: check_degradation_change | |
10774 | * Description: Check that array hasn't become failed. | |
10775 | * Parameters: | |
10776 | * info : for sysfs access | |
10777 | * sources : source disks descriptors | |
10778 | * degraded: previous degradation level | |
10779 | * Returns: | |
10780 | * degradation level | |
10781 | ******************************************************************************/ | |
10782 | int check_degradation_change(struct mdinfo *info, | |
10783 | int *sources, | |
10784 | int degraded) | |
10785 | { | |
10786 | unsigned long long new_degraded; | |
e1993023 LD |
10787 | int rv; |
10788 | ||
10789 | rv = sysfs_get_ll(info, NULL, "degraded", &new_degraded); | |
089f9d79 | 10790 | if (rv == -1 || (new_degraded != (unsigned long long)degraded)) { |
b915c95f AK |
10791 | /* check each device to ensure it is still working */ |
10792 | struct mdinfo *sd; | |
10793 | new_degraded = 0; | |
10794 | for (sd = info->devs ; sd ; sd = sd->next) { | |
10795 | if (sd->disk.state & (1<<MD_DISK_FAULTY)) | |
10796 | continue; | |
10797 | if (sd->disk.state & (1<<MD_DISK_SYNC)) { | |
cf52eff5 TM |
10798 | char sbuf[100]; |
10799 | ||
b915c95f | 10800 | if (sysfs_get_str(info, |
cf52eff5 | 10801 | sd, "state", sbuf, sizeof(sbuf)) < 0 || |
b915c95f AK |
10802 | strstr(sbuf, "faulty") || |
10803 | strstr(sbuf, "in_sync") == NULL) { | |
10804 | /* this device is dead */ | |
10805 | sd->disk.state = (1<<MD_DISK_FAULTY); | |
10806 | if (sd->disk.raid_disk >= 0 && | |
10807 | sources[sd->disk.raid_disk] >= 0) { | |
10808 | close(sources[ | |
10809 | sd->disk.raid_disk]); | |
10810 | sources[sd->disk.raid_disk] = | |
10811 | -1; | |
10812 | } | |
10813 | new_degraded++; | |
10814 | } | |
10815 | } | |
10816 | } | |
10817 | } | |
10818 | ||
10819 | return new_degraded; | |
10820 | } | |
10821 | ||
10f22854 AK |
10822 | /******************************************************************************* |
10823 | * Function: imsm_manage_reshape | |
10824 | * Description: Function finds array under reshape and it manages reshape | |
10825 | * process. It creates stripes backups (if required) and sets | |
942e1cdb | 10826 | * checkpoints. |
10f22854 AK |
10827 | * Parameters: |
10828 | * afd : Backup handle (nattive) - not used | |
10829 | * sra : general array info | |
10830 | * reshape : reshape parameters - not used | |
10831 | * st : supertype structure | |
10832 | * blocks : size of critical section [blocks] | |
10833 | * fds : table of source device descriptor | |
10834 | * offsets : start of array (offest per devices) | |
10835 | * dests : not used | |
10836 | * destfd : table of destination device descriptor | |
10837 | * destoffsets : table of destination offsets (per device) | |
10838 | * Returns: | |
10839 | * 1 : success, reshape is done | |
10840 | * 0 : fail | |
10841 | ******************************************************************************/ | |
999b4972 N |
10842 | static int imsm_manage_reshape( |
10843 | int afd, struct mdinfo *sra, struct reshape *reshape, | |
10f22854 | 10844 | struct supertype *st, unsigned long backup_blocks, |
999b4972 N |
10845 | int *fds, unsigned long long *offsets, |
10846 | int dests, int *destfd, unsigned long long *destoffsets) | |
10847 | { | |
10f22854 AK |
10848 | int ret_val = 0; |
10849 | struct intel_super *super = st->sb; | |
594dc1b8 | 10850 | struct intel_dev *dv; |
de44e46f | 10851 | unsigned int sector_size = super->sector_size; |
10f22854 | 10852 | struct imsm_dev *dev = NULL; |
a6b6d984 | 10853 | struct imsm_map *map_src; |
10f22854 AK |
10854 | int migr_vol_qan = 0; |
10855 | int ndata, odata; /* [bytes] */ | |
10856 | int chunk; /* [bytes] */ | |
10857 | struct migr_record *migr_rec; | |
10858 | char *buf = NULL; | |
10859 | unsigned int buf_size; /* [bytes] */ | |
10860 | unsigned long long max_position; /* array size [bytes] */ | |
10861 | unsigned long long next_step; /* [blocks]/[bytes] */ | |
10862 | unsigned long long old_data_stripe_length; | |
10f22854 AK |
10863 | unsigned long long start_src; /* [bytes] */ |
10864 | unsigned long long start; /* [bytes] */ | |
10865 | unsigned long long start_buf_shift; /* [bytes] */ | |
b915c95f | 10866 | int degraded = 0; |
ab724b98 | 10867 | int source_layout = 0; |
10f22854 | 10868 | |
79a16a9b JS |
10869 | if (!sra) |
10870 | return ret_val; | |
10871 | ||
10872 | if (!fds || !offsets) | |
10f22854 AK |
10873 | goto abort; |
10874 | ||
10875 | /* Find volume during the reshape */ | |
10876 | for (dv = super->devlist; dv; dv = dv->next) { | |
10877 | if (dv->dev->vol.migr_type == MIGR_GEN_MIGR | |
10878 | && dv->dev->vol.migr_state == 1) { | |
10879 | dev = dv->dev; | |
10880 | migr_vol_qan++; | |
10881 | } | |
10882 | } | |
10883 | /* Only one volume can migrate at the same time */ | |
10884 | if (migr_vol_qan != 1) { | |
676e87a8 | 10885 | pr_err("%s", migr_vol_qan ? |
10f22854 AK |
10886 | "Number of migrating volumes greater than 1\n" : |
10887 | "There is no volume during migrationg\n"); | |
10888 | goto abort; | |
10889 | } | |
10890 | ||
238c0a71 | 10891 | map_src = get_imsm_map(dev, MAP_1); |
10f22854 AK |
10892 | if (map_src == NULL) |
10893 | goto abort; | |
10f22854 | 10894 | |
238c0a71 AK |
10895 | ndata = imsm_num_data_members(dev, MAP_0); |
10896 | odata = imsm_num_data_members(dev, MAP_1); | |
10f22854 | 10897 | |
7b1ab482 | 10898 | chunk = __le16_to_cpu(map_src->blocks_per_strip) * 512; |
10f22854 AK |
10899 | old_data_stripe_length = odata * chunk; |
10900 | ||
10901 | migr_rec = super->migr_rec; | |
10902 | ||
10f22854 AK |
10903 | /* initialize migration record for start condition */ |
10904 | if (sra->reshape_progress == 0) | |
10905 | init_migr_record_imsm(st, dev, sra); | |
b2c59438 AK |
10906 | else { |
10907 | if (__le32_to_cpu(migr_rec->rec_status) != UNIT_SRC_NORMAL) { | |
7a862a02 | 10908 | dprintf("imsm: cannot restart migration when data are present in copy area.\n"); |
b2c59438 AK |
10909 | goto abort; |
10910 | } | |
6a75c8ca AK |
10911 | /* Save checkpoint to update migration record for current |
10912 | * reshape position (in md). It can be farther than current | |
10913 | * reshape position in metadata. | |
10914 | */ | |
10915 | if (save_checkpoint_imsm(st, sra, UNIT_SRC_NORMAL) == 1) { | |
10916 | /* ignore error == 2, this can mean end of reshape here | |
10917 | */ | |
7a862a02 | 10918 | dprintf("imsm: Cannot write checkpoint to migration record (UNIT_SRC_NORMAL, initial save)\n"); |
6a75c8ca AK |
10919 | goto abort; |
10920 | } | |
b2c59438 | 10921 | } |
10f22854 AK |
10922 | |
10923 | /* size for data */ | |
10924 | buf_size = __le32_to_cpu(migr_rec->blocks_per_unit) * 512; | |
10925 | /* extend buffer size for parity disk */ | |
10926 | buf_size += __le32_to_cpu(migr_rec->dest_depth_per_unit) * 512; | |
10927 | /* add space for stripe aligment */ | |
10928 | buf_size += old_data_stripe_length; | |
de44e46f PB |
10929 | if (posix_memalign((void **)&buf, MAX_SECTOR_SIZE, buf_size)) { |
10930 | dprintf("imsm: Cannot allocate checkpoint buffer\n"); | |
10f22854 AK |
10931 | goto abort; |
10932 | } | |
10933 | ||
3ef4403c | 10934 | max_position = sra->component_size * ndata; |
68eb8bc6 | 10935 | source_layout = imsm_level_to_layout(map_src->raid_level); |
10f22854 AK |
10936 | |
10937 | while (__le32_to_cpu(migr_rec->curr_migr_unit) < | |
10938 | __le32_to_cpu(migr_rec->num_migr_units)) { | |
10939 | /* current reshape position [blocks] */ | |
10940 | unsigned long long current_position = | |
10941 | __le32_to_cpu(migr_rec->blocks_per_unit) | |
10942 | * __le32_to_cpu(migr_rec->curr_migr_unit); | |
10943 | unsigned long long border; | |
10944 | ||
b915c95f AK |
10945 | /* Check that array hasn't become failed. |
10946 | */ | |
10947 | degraded = check_degradation_change(sra, fds, degraded); | |
10948 | if (degraded > 1) { | |
7a862a02 | 10949 | dprintf("imsm: Abort reshape due to degradation level (%i)\n", degraded); |
b915c95f AK |
10950 | goto abort; |
10951 | } | |
10952 | ||
10f22854 AK |
10953 | next_step = __le32_to_cpu(migr_rec->blocks_per_unit); |
10954 | ||
10955 | if ((current_position + next_step) > max_position) | |
10956 | next_step = max_position - current_position; | |
10957 | ||
92144abf | 10958 | start = current_position * 512; |
10f22854 | 10959 | |
942e1cdb | 10960 | /* align reading start to old geometry */ |
10f22854 AK |
10961 | start_buf_shift = start % old_data_stripe_length; |
10962 | start_src = start - start_buf_shift; | |
10963 | ||
10964 | border = (start_src / odata) - (start / ndata); | |
10965 | border /= 512; | |
10966 | if (border <= __le32_to_cpu(migr_rec->dest_depth_per_unit)) { | |
10967 | /* save critical stripes to buf | |
10968 | * start - start address of current unit | |
10969 | * to backup [bytes] | |
10970 | * start_src - start address of current unit | |
10971 | * to backup alligned to source array | |
10972 | * [bytes] | |
10973 | */ | |
594dc1b8 | 10974 | unsigned long long next_step_filler; |
10f22854 AK |
10975 | unsigned long long copy_length = next_step * 512; |
10976 | ||
10977 | /* allign copy area length to stripe in old geometry */ | |
10978 | next_step_filler = ((copy_length + start_buf_shift) | |
10979 | % old_data_stripe_length); | |
10980 | if (next_step_filler) | |
10981 | next_step_filler = (old_data_stripe_length | |
10982 | - next_step_filler); | |
7a862a02 | 10983 | 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 |
10984 | start, start_src, copy_length, |
10985 | start_buf_shift, next_step_filler); | |
10986 | ||
10987 | if (save_stripes(fds, offsets, map_src->num_members, | |
ab724b98 AK |
10988 | chunk, map_src->raid_level, |
10989 | source_layout, 0, NULL, start_src, | |
10f22854 AK |
10990 | copy_length + |
10991 | next_step_filler + start_buf_shift, | |
10992 | buf)) { | |
7a862a02 | 10993 | dprintf("imsm: Cannot save stripes to buffer\n"); |
10f22854 AK |
10994 | goto abort; |
10995 | } | |
10996 | /* Convert data to destination format and store it | |
10997 | * in backup general migration area | |
10998 | */ | |
10999 | if (save_backup_imsm(st, dev, sra, | |
aea93171 | 11000 | buf + start_buf_shift, copy_length)) { |
7a862a02 | 11001 | dprintf("imsm: Cannot save stripes to target devices\n"); |
10f22854 AK |
11002 | goto abort; |
11003 | } | |
11004 | if (save_checkpoint_imsm(st, sra, | |
11005 | UNIT_SRC_IN_CP_AREA)) { | |
7a862a02 | 11006 | dprintf("imsm: Cannot write checkpoint to migration record (UNIT_SRC_IN_CP_AREA)\n"); |
10f22854 AK |
11007 | goto abort; |
11008 | } | |
8016a6d4 AK |
11009 | } else { |
11010 | /* set next step to use whole border area */ | |
11011 | border /= next_step; | |
11012 | if (border > 1) | |
11013 | next_step *= border; | |
10f22854 AK |
11014 | } |
11015 | /* When data backed up, checkpoint stored, | |
11016 | * kick the kernel to reshape unit of data | |
11017 | */ | |
11018 | next_step = next_step + sra->reshape_progress; | |
8016a6d4 AK |
11019 | /* limit next step to array max position */ |
11020 | if (next_step > max_position) | |
11021 | next_step = max_position; | |
10f22854 AK |
11022 | sysfs_set_num(sra, NULL, "suspend_lo", sra->reshape_progress); |
11023 | sysfs_set_num(sra, NULL, "suspend_hi", next_step); | |
ae9f01f8 | 11024 | sra->reshape_progress = next_step; |
10f22854 AK |
11025 | |
11026 | /* wait until reshape finish */ | |
c85338c6 | 11027 | if (wait_for_reshape_imsm(sra, ndata)) { |
c47b0ff6 AK |
11028 | dprintf("wait_for_reshape_imsm returned error!\n"); |
11029 | goto abort; | |
11030 | } | |
84d11e6c N |
11031 | if (sigterm) |
11032 | goto abort; | |
10f22854 | 11033 | |
0228d92c AK |
11034 | if (save_checkpoint_imsm(st, sra, UNIT_SRC_NORMAL) == 1) { |
11035 | /* ignore error == 2, this can mean end of reshape here | |
11036 | */ | |
7a862a02 | 11037 | dprintf("imsm: Cannot write checkpoint to migration record (UNIT_SRC_NORMAL)\n"); |
10f22854 AK |
11038 | goto abort; |
11039 | } | |
11040 | ||
11041 | } | |
11042 | ||
71e5411e PB |
11043 | /* clear migr_rec on disks after successful migration */ |
11044 | struct dl *d; | |
11045 | ||
de44e46f | 11046 | memset(super->migr_rec_buf, 0, MIGR_REC_BUF_SECTORS*sector_size); |
71e5411e PB |
11047 | for (d = super->disks; d; d = d->next) { |
11048 | if (d->index < 0 || is_failed(&d->disk)) | |
11049 | continue; | |
11050 | unsigned long long dsize; | |
11051 | ||
11052 | get_dev_size(d->fd, NULL, &dsize); | |
de44e46f | 11053 | if (lseek64(d->fd, dsize - MIGR_REC_SECTOR_POSITION*sector_size, |
71e5411e PB |
11054 | SEEK_SET) >= 0) { |
11055 | if (write(d->fd, super->migr_rec_buf, | |
de44e46f PB |
11056 | MIGR_REC_BUF_SECTORS*sector_size) != |
11057 | MIGR_REC_BUF_SECTORS*sector_size) | |
71e5411e PB |
11058 | perror("Write migr_rec failed"); |
11059 | } | |
11060 | } | |
11061 | ||
10f22854 AK |
11062 | /* return '1' if done */ |
11063 | ret_val = 1; | |
11064 | abort: | |
11065 | free(buf); | |
942e1cdb N |
11066 | /* See Grow.c: abort_reshape() for further explanation */ |
11067 | sysfs_set_num(sra, NULL, "suspend_lo", 0x7FFFFFFFFFFFFFFFULL); | |
11068 | sysfs_set_num(sra, NULL, "suspend_hi", 0); | |
11069 | sysfs_set_num(sra, NULL, "suspend_lo", 0); | |
10f22854 AK |
11070 | |
11071 | return ret_val; | |
999b4972 | 11072 | } |
0c21b485 | 11073 | |
71204a50 | 11074 | #endif /* MDASSEMBLE */ |
999b4972 | 11075 | |
cdddbdbc DW |
11076 | struct superswitch super_imsm = { |
11077 | #ifndef MDASSEMBLE | |
11078 | .examine_super = examine_super_imsm, | |
11079 | .brief_examine_super = brief_examine_super_imsm, | |
4737ae25 | 11080 | .brief_examine_subarrays = brief_examine_subarrays_imsm, |
9d84c8ea | 11081 | .export_examine_super = export_examine_super_imsm, |
cdddbdbc DW |
11082 | .detail_super = detail_super_imsm, |
11083 | .brief_detail_super = brief_detail_super_imsm, | |
bf5a934a | 11084 | .write_init_super = write_init_super_imsm, |
0e600426 N |
11085 | .validate_geometry = validate_geometry_imsm, |
11086 | .add_to_super = add_to_super_imsm, | |
1a64be56 | 11087 | .remove_from_super = remove_from_super_imsm, |
d665cc31 | 11088 | .detail_platform = detail_platform_imsm, |
e50cf220 | 11089 | .export_detail_platform = export_detail_platform_imsm, |
33414a01 | 11090 | .kill_subarray = kill_subarray_imsm, |
aa534678 | 11091 | .update_subarray = update_subarray_imsm, |
2b959fbf | 11092 | .load_container = load_container_imsm, |
71204a50 N |
11093 | .default_geometry = default_geometry_imsm, |
11094 | .get_disk_controller_domain = imsm_get_disk_controller_domain, | |
11095 | .reshape_super = imsm_reshape_super, | |
11096 | .manage_reshape = imsm_manage_reshape, | |
9e2d750d | 11097 | .recover_backup = recover_backup_imsm, |
74db60b0 | 11098 | .copy_metadata = copy_metadata_imsm, |
cdddbdbc DW |
11099 | #endif |
11100 | .match_home = match_home_imsm, | |
11101 | .uuid_from_super= uuid_from_super_imsm, | |
11102 | .getinfo_super = getinfo_super_imsm, | |
5c4cd5da | 11103 | .getinfo_super_disks = getinfo_super_disks_imsm, |
cdddbdbc DW |
11104 | .update_super = update_super_imsm, |
11105 | ||
11106 | .avail_size = avail_size_imsm, | |
80e7f8c3 | 11107 | .min_acceptable_spare_size = min_acceptable_spare_size_imsm, |
cdddbdbc DW |
11108 | |
11109 | .compare_super = compare_super_imsm, | |
11110 | ||
11111 | .load_super = load_super_imsm, | |
bf5a934a | 11112 | .init_super = init_super_imsm, |
e683ca88 | 11113 | .store_super = store_super_imsm, |
cdddbdbc DW |
11114 | .free_super = free_super_imsm, |
11115 | .match_metadata_desc = match_metadata_desc_imsm, | |
bf5a934a | 11116 | .container_content = container_content_imsm, |
0c21b485 | 11117 | .validate_container = validate_container_imsm, |
cdddbdbc | 11118 | |
cdddbdbc | 11119 | .external = 1, |
4cce4069 | 11120 | .name = "imsm", |
845dea95 | 11121 | |
0e600426 | 11122 | #ifndef MDASSEMBLE |
845dea95 NB |
11123 | /* for mdmon */ |
11124 | .open_new = imsm_open_new, | |
ed9d66aa | 11125 | .set_array_state= imsm_set_array_state, |
845dea95 NB |
11126 | .set_disk = imsm_set_disk, |
11127 | .sync_metadata = imsm_sync_metadata, | |
88758e9d | 11128 | .activate_spare = imsm_activate_spare, |
e8319a19 | 11129 | .process_update = imsm_process_update, |
8273f55e | 11130 | .prepare_update = imsm_prepare_update, |
0e600426 | 11131 | #endif /* MDASSEMBLE */ |
cdddbdbc | 11132 | }; |