]>
Commit | Line | Data |
---|---|---|
cdddbdbc DW |
1 | /* |
2 | * mdadm - Intel(R) Matrix Storage Manager Support | |
3 | * | |
a54d5262 | 4 | * Copyright (C) 2002-2008 Intel Corporation |
cdddbdbc DW |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify it | |
7 | * under the terms and conditions of the GNU General Public License, | |
8 | * version 2, as published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope it will be useful, but WITHOUT | |
11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
13 | * more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License along with | |
16 | * this program; if not, write to the Free Software Foundation, Inc., | |
17 | * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. | |
18 | */ | |
19 | ||
51006d85 | 20 | #define HAVE_STDINT_H 1 |
cdddbdbc | 21 | #include "mdadm.h" |
c2a1e7da | 22 | #include "mdmon.h" |
51006d85 | 23 | #include "sha1.h" |
88c32bb1 | 24 | #include "platform-intel.h" |
cdddbdbc DW |
25 | #include <values.h> |
26 | #include <scsi/sg.h> | |
27 | #include <ctype.h> | |
d665cc31 | 28 | #include <dirent.h> |
cdddbdbc DW |
29 | |
30 | /* MPB == Metadata Parameter Block */ | |
31 | #define MPB_SIGNATURE "Intel Raid ISM Cfg Sig. " | |
32 | #define MPB_SIG_LEN (strlen(MPB_SIGNATURE)) | |
33 | #define MPB_VERSION_RAID0 "1.0.00" | |
34 | #define MPB_VERSION_RAID1 "1.1.00" | |
fe7ed8cb DW |
35 | #define MPB_VERSION_MANY_VOLUMES_PER_ARRAY "1.2.00" |
36 | #define MPB_VERSION_3OR4_DISK_ARRAY "1.2.01" | |
cdddbdbc | 37 | #define MPB_VERSION_RAID5 "1.2.02" |
fe7ed8cb DW |
38 | #define MPB_VERSION_5OR6_DISK_ARRAY "1.2.04" |
39 | #define MPB_VERSION_CNG "1.2.06" | |
40 | #define MPB_VERSION_ATTRIBS "1.3.00" | |
cdddbdbc DW |
41 | #define MAX_SIGNATURE_LENGTH 32 |
42 | #define MAX_RAID_SERIAL_LEN 16 | |
fe7ed8cb | 43 | |
19482bcc AK |
44 | /* supports RAID0 */ |
45 | #define MPB_ATTRIB_RAID0 __cpu_to_le32(0x00000001) | |
46 | /* supports RAID1 */ | |
47 | #define MPB_ATTRIB_RAID1 __cpu_to_le32(0x00000002) | |
48 | /* supports RAID10 */ | |
49 | #define MPB_ATTRIB_RAID10 __cpu_to_le32(0x00000004) | |
50 | /* supports RAID1E */ | |
51 | #define MPB_ATTRIB_RAID1E __cpu_to_le32(0x00000008) | |
52 | /* supports RAID5 */ | |
53 | #define MPB_ATTRIB_RAID5 __cpu_to_le32(0x00000010) | |
54 | /* supports RAID CNG */ | |
55 | #define MPB_ATTRIB_RAIDCNG __cpu_to_le32(0x00000020) | |
56 | /* supports expanded stripe sizes of 256K, 512K and 1MB */ | |
57 | #define MPB_ATTRIB_EXP_STRIPE_SIZE __cpu_to_le32(0x00000040) | |
58 | ||
59 | /* The OROM Support RST Caching of Volumes */ | |
60 | #define MPB_ATTRIB_NVM __cpu_to_le32(0x02000000) | |
61 | /* The OROM supports creating disks greater than 2TB */ | |
62 | #define MPB_ATTRIB_2TB_DISK __cpu_to_le32(0x04000000) | |
63 | /* The OROM supports Bad Block Management */ | |
64 | #define MPB_ATTRIB_BBM __cpu_to_le32(0x08000000) | |
65 | ||
66 | /* THe OROM Supports NVM Caching of Volumes */ | |
67 | #define MPB_ATTRIB_NEVER_USE2 __cpu_to_le32(0x10000000) | |
68 | /* The OROM supports creating volumes greater than 2TB */ | |
69 | #define MPB_ATTRIB_2TB __cpu_to_le32(0x20000000) | |
70 | /* originally for PMP, now it's wasted b/c. Never use this bit! */ | |
71 | #define MPB_ATTRIB_NEVER_USE __cpu_to_le32(0x40000000) | |
72 | /* Verify MPB contents against checksum after reading MPB */ | |
73 | #define MPB_ATTRIB_CHECKSUM_VERIFY __cpu_to_le32(0x80000000) | |
74 | ||
75 | /* Define all supported attributes that have to be accepted by mdadm | |
76 | */ | |
418f9b36 | 77 | #define MPB_ATTRIB_SUPPORTED (MPB_ATTRIB_CHECKSUM_VERIFY | \ |
19482bcc AK |
78 | MPB_ATTRIB_2TB | \ |
79 | MPB_ATTRIB_2TB_DISK | \ | |
80 | MPB_ATTRIB_RAID0 | \ | |
81 | MPB_ATTRIB_RAID1 | \ | |
82 | MPB_ATTRIB_RAID10 | \ | |
83 | MPB_ATTRIB_RAID5 | \ | |
bbab0940 TM |
84 | MPB_ATTRIB_EXP_STRIPE_SIZE | \ |
85 | MPB_ATTRIB_BBM) | |
418f9b36 N |
86 | |
87 | /* Define attributes that are unused but not harmful */ | |
88 | #define MPB_ATTRIB_IGNORED (MPB_ATTRIB_NEVER_USE) | |
fe7ed8cb | 89 | |
8e59f3d8 | 90 | #define MPB_SECTOR_CNT 2210 |
611d9529 MD |
91 | #define IMSM_RESERVED_SECTORS 8192 |
92 | #define NUM_BLOCKS_DIRTY_STRIPE_REGION 2048 | |
979d38be | 93 | #define SECT_PER_MB_SHIFT 11 |
f36a9ecd | 94 | #define MAX_SECTOR_SIZE 4096 |
c2462068 PB |
95 | #define MULTIPLE_PPL_AREA_SIZE_IMSM (1024 * 1024) /* Size of the whole |
96 | * mutliple PPL area | |
97 | */ | |
cdddbdbc | 98 | |
761e3bd9 N |
99 | /* |
100 | * This macro let's us ensure that no-one accidentally | |
101 | * changes the size of a struct | |
102 | */ | |
103 | #define ASSERT_SIZE(_struct, size) \ | |
104 | static inline void __assert_size_##_struct(void) \ | |
105 | { \ | |
106 | switch (0) { \ | |
107 | case 0: break; \ | |
108 | case (sizeof(struct _struct) == size): break; \ | |
109 | } \ | |
110 | } | |
111 | ||
cdddbdbc DW |
112 | /* Disk configuration info. */ |
113 | #define IMSM_MAX_DEVICES 255 | |
114 | struct imsm_disk { | |
115 | __u8 serial[MAX_RAID_SERIAL_LEN];/* 0xD8 - 0xE7 ascii serial number */ | |
5551b113 | 116 | __u32 total_blocks_lo; /* 0xE8 - 0xEB total blocks lo */ |
cdddbdbc | 117 | __u32 scsi_id; /* 0xEC - 0xEF scsi ID */ |
f2f27e63 DW |
118 | #define SPARE_DISK __cpu_to_le32(0x01) /* Spare */ |
119 | #define CONFIGURED_DISK __cpu_to_le32(0x02) /* Member of some RaidDev */ | |
120 | #define FAILED_DISK __cpu_to_le32(0x04) /* Permanent failure */ | |
2432ce9b | 121 | #define JOURNAL_DISK __cpu_to_le32(0x2000000) /* Device marked as Journaling Drive */ |
cdddbdbc | 122 | __u32 status; /* 0xF0 - 0xF3 */ |
1011e834 | 123 | __u32 owner_cfg_num; /* which config 0,1,2... owns this disk */ |
5551b113 CA |
124 | __u32 total_blocks_hi; /* 0xF4 - 0xF5 total blocks hi */ |
125 | #define IMSM_DISK_FILLERS 3 | |
126 | __u32 filler[IMSM_DISK_FILLERS]; /* 0xF5 - 0x107 MPB_DISK_FILLERS for future expansion */ | |
cdddbdbc | 127 | }; |
761e3bd9 | 128 | ASSERT_SIZE(imsm_disk, 48) |
cdddbdbc | 129 | |
3b451610 AK |
130 | /* map selector for map managment |
131 | */ | |
238c0a71 AK |
132 | #define MAP_0 0 |
133 | #define MAP_1 1 | |
134 | #define MAP_X -1 | |
3b451610 | 135 | |
cdddbdbc DW |
136 | /* RAID map configuration infos. */ |
137 | struct imsm_map { | |
5551b113 CA |
138 | __u32 pba_of_lba0_lo; /* start address of partition */ |
139 | __u32 blocks_per_member_lo;/* blocks per member */ | |
140 | __u32 num_data_stripes_lo; /* number of data stripes */ | |
cdddbdbc DW |
141 | __u16 blocks_per_strip; |
142 | __u8 map_state; /* Normal, Uninitialized, Degraded, Failed */ | |
143 | #define IMSM_T_STATE_NORMAL 0 | |
144 | #define IMSM_T_STATE_UNINITIALIZED 1 | |
e3bba0e0 DW |
145 | #define IMSM_T_STATE_DEGRADED 2 |
146 | #define IMSM_T_STATE_FAILED 3 | |
cdddbdbc DW |
147 | __u8 raid_level; |
148 | #define IMSM_T_RAID0 0 | |
149 | #define IMSM_T_RAID1 1 | |
150 | #define IMSM_T_RAID5 5 /* since metadata version 1.2.02 ? */ | |
151 | __u8 num_members; /* number of member disks */ | |
fe7ed8cb DW |
152 | __u8 num_domains; /* number of parity domains */ |
153 | __u8 failed_disk_num; /* valid only when state is degraded */ | |
252d23c0 | 154 | __u8 ddf; |
5551b113 CA |
155 | __u32 pba_of_lba0_hi; |
156 | __u32 blocks_per_member_hi; | |
157 | __u32 num_data_stripes_hi; | |
158 | __u32 filler[4]; /* expansion area */ | |
7eef0453 | 159 | #define IMSM_ORD_REBUILD (1 << 24) |
cdddbdbc | 160 | __u32 disk_ord_tbl[1]; /* disk_ord_tbl[num_members], |
7eef0453 DW |
161 | * top byte contains some flags |
162 | */ | |
761e3bd9 N |
163 | }; |
164 | ASSERT_SIZE(imsm_map, 52) | |
cdddbdbc DW |
165 | |
166 | struct imsm_vol { | |
f8f603f1 | 167 | __u32 curr_migr_unit; |
fe7ed8cb | 168 | __u32 checkpoint_id; /* id to access curr_migr_unit */ |
cdddbdbc | 169 | __u8 migr_state; /* Normal or Migrating */ |
e3bba0e0 DW |
170 | #define MIGR_INIT 0 |
171 | #define MIGR_REBUILD 1 | |
172 | #define MIGR_VERIFY 2 /* analagous to echo check > sync_action */ | |
173 | #define MIGR_GEN_MIGR 3 | |
174 | #define MIGR_STATE_CHANGE 4 | |
1484e727 | 175 | #define MIGR_REPAIR 5 |
cdddbdbc | 176 | __u8 migr_type; /* Initializing, Rebuilding, ... */ |
2432ce9b AP |
177 | #define RAIDVOL_CLEAN 0 |
178 | #define RAIDVOL_DIRTY 1 | |
179 | #define RAIDVOL_DSRECORD_VALID 2 | |
cdddbdbc | 180 | __u8 dirty; |
fe7ed8cb DW |
181 | __u8 fs_state; /* fast-sync state for CnG (0xff == disabled) */ |
182 | __u16 verify_errors; /* number of mismatches */ | |
183 | __u16 bad_blocks; /* number of bad blocks during verify */ | |
184 | __u32 filler[4]; | |
cdddbdbc DW |
185 | struct imsm_map map[1]; |
186 | /* here comes another one if migr_state */ | |
761e3bd9 N |
187 | }; |
188 | ASSERT_SIZE(imsm_vol, 84) | |
cdddbdbc DW |
189 | |
190 | struct imsm_dev { | |
fe7ed8cb | 191 | __u8 volume[MAX_RAID_SERIAL_LEN]; |
cdddbdbc DW |
192 | __u32 size_low; |
193 | __u32 size_high; | |
fe7ed8cb DW |
194 | #define DEV_BOOTABLE __cpu_to_le32(0x01) |
195 | #define DEV_BOOT_DEVICE __cpu_to_le32(0x02) | |
196 | #define DEV_READ_COALESCING __cpu_to_le32(0x04) | |
197 | #define DEV_WRITE_COALESCING __cpu_to_le32(0x08) | |
198 | #define DEV_LAST_SHUTDOWN_DIRTY __cpu_to_le32(0x10) | |
199 | #define DEV_HIDDEN_AT_BOOT __cpu_to_le32(0x20) | |
200 | #define DEV_CURRENTLY_HIDDEN __cpu_to_le32(0x40) | |
201 | #define DEV_VERIFY_AND_FIX __cpu_to_le32(0x80) | |
202 | #define DEV_MAP_STATE_UNINIT __cpu_to_le32(0x100) | |
203 | #define DEV_NO_AUTO_RECOVERY __cpu_to_le32(0x200) | |
204 | #define DEV_CLONE_N_GO __cpu_to_le32(0x400) | |
205 | #define DEV_CLONE_MAN_SYNC __cpu_to_le32(0x800) | |
206 | #define DEV_CNG_MASTER_DISK_NUM __cpu_to_le32(0x1000) | |
cdddbdbc DW |
207 | __u32 status; /* Persistent RaidDev status */ |
208 | __u32 reserved_blocks; /* Reserved blocks at beginning of volume */ | |
fe7ed8cb DW |
209 | __u8 migr_priority; |
210 | __u8 num_sub_vols; | |
211 | __u8 tid; | |
212 | __u8 cng_master_disk; | |
213 | __u16 cache_policy; | |
214 | __u8 cng_state; | |
215 | __u8 cng_sub_state; | |
2432ce9b AP |
216 | __u16 my_vol_raid_dev_num; /* Used in Unique volume Id for this RaidDev */ |
217 | ||
218 | /* NVM_EN */ | |
219 | __u8 nv_cache_mode; | |
220 | __u8 nv_cache_flags; | |
221 | ||
222 | /* Unique Volume Id of the NvCache Volume associated with this volume */ | |
223 | __u32 nvc_vol_orig_family_num; | |
224 | __u16 nvc_vol_raid_dev_num; | |
225 | ||
226 | #define RWH_OFF 0 | |
227 | #define RWH_DISTRIBUTED 1 | |
228 | #define RWH_JOURNALING_DRIVE 2 | |
c2462068 PB |
229 | #define RWH_MULTIPLE_DISTRIBUTED 3 |
230 | #define RWH_MULTIPLE_PPLS_JOURNALING_DRIVE 4 | |
231 | #define RWH_MULTIPLE_OFF 5 | |
2432ce9b AP |
232 | __u8 rwh_policy; /* Raid Write Hole Policy */ |
233 | __u8 jd_serial[MAX_RAID_SERIAL_LEN]; /* Journal Drive serial number */ | |
234 | __u8 filler1; | |
235 | ||
236 | #define IMSM_DEV_FILLERS 3 | |
cdddbdbc DW |
237 | __u32 filler[IMSM_DEV_FILLERS]; |
238 | struct imsm_vol vol; | |
761e3bd9 N |
239 | }; |
240 | ASSERT_SIZE(imsm_dev, 164) | |
cdddbdbc DW |
241 | |
242 | struct imsm_super { | |
243 | __u8 sig[MAX_SIGNATURE_LENGTH]; /* 0x00 - 0x1F */ | |
244 | __u32 check_sum; /* 0x20 - 0x23 MPB Checksum */ | |
245 | __u32 mpb_size; /* 0x24 - 0x27 Size of MPB */ | |
246 | __u32 family_num; /* 0x28 - 0x2B Checksum from first time this config was written */ | |
247 | __u32 generation_num; /* 0x2C - 0x2F Incremented each time this array's MPB is written */ | |
604b746f JD |
248 | __u32 error_log_size; /* 0x30 - 0x33 in bytes */ |
249 | __u32 attributes; /* 0x34 - 0x37 */ | |
cdddbdbc DW |
250 | __u8 num_disks; /* 0x38 Number of configured disks */ |
251 | __u8 num_raid_devs; /* 0x39 Number of configured volumes */ | |
604b746f JD |
252 | __u8 error_log_pos; /* 0x3A */ |
253 | __u8 fill[1]; /* 0x3B */ | |
254 | __u32 cache_size; /* 0x3c - 0x40 in mb */ | |
255 | __u32 orig_family_num; /* 0x40 - 0x43 original family num */ | |
256 | __u32 pwr_cycle_count; /* 0x44 - 0x47 simulated power cycle count for array */ | |
257 | __u32 bbm_log_size; /* 0x48 - 0x4B - size of bad Block Mgmt Log in bytes */ | |
2a24dc1b PB |
258 | __u16 num_raid_devs_created; /* 0x4C - 0x4D Used for generating unique |
259 | * volume IDs for raid_dev created in this array | |
260 | * (starts at 1) | |
261 | */ | |
262 | __u16 filler1; /* 0x4E - 0x4F */ | |
e48aed3c AP |
263 | __u64 creation_time; /* 0x50 - 0x57 Array creation time */ |
264 | #define IMSM_FILLERS 32 | |
265 | __u32 filler[IMSM_FILLERS]; /* 0x58 - 0xD7 RAID_MPB_FILLERS */ | |
cdddbdbc DW |
266 | struct imsm_disk disk[1]; /* 0xD8 diskTbl[numDisks] */ |
267 | /* here comes imsm_dev[num_raid_devs] */ | |
604b746f | 268 | /* here comes BBM logs */ |
761e3bd9 N |
269 | }; |
270 | ASSERT_SIZE(imsm_super, 264) | |
cdddbdbc | 271 | |
604b746f | 272 | #define BBM_LOG_MAX_ENTRIES 254 |
8d67477f TM |
273 | #define BBM_LOG_MAX_LBA_ENTRY_VAL 256 /* Represents 256 LBAs */ |
274 | #define BBM_LOG_SIGNATURE 0xabadb10c | |
275 | ||
276 | struct bbm_log_block_addr { | |
277 | __u16 w1; | |
278 | __u32 dw1; | |
279 | } __attribute__ ((__packed__)); | |
604b746f JD |
280 | |
281 | struct bbm_log_entry { | |
8d67477f TM |
282 | __u8 marked_count; /* Number of blocks marked - 1 */ |
283 | __u8 disk_ordinal; /* Disk entry within the imsm_super */ | |
284 | struct bbm_log_block_addr defective_block_start; | |
604b746f JD |
285 | } __attribute__ ((__packed__)); |
286 | ||
287 | struct bbm_log { | |
288 | __u32 signature; /* 0xABADB10C */ | |
289 | __u32 entry_count; | |
8d67477f | 290 | struct bbm_log_entry marked_block_entries[BBM_LOG_MAX_ENTRIES]; |
761e3bd9 N |
291 | }; |
292 | ASSERT_SIZE(bbm_log, 2040) | |
604b746f | 293 | |
cdddbdbc | 294 | static char *map_state_str[] = { "normal", "uninitialized", "degraded", "failed" }; |
cdddbdbc | 295 | |
b53bfba6 TM |
296 | #define BLOCKS_PER_KB (1024/512) |
297 | ||
8e59f3d8 AK |
298 | #define RAID_DISK_RESERVED_BLOCKS_IMSM_HI 2209 |
299 | ||
300 | #define GEN_MIGR_AREA_SIZE 2048 /* General Migration Copy Area size in blocks */ | |
301 | ||
de44e46f PB |
302 | #define MIGR_REC_BUF_SECTORS 1 /* size of migr_record i/o buffer in sectors */ |
303 | #define MIGR_REC_SECTOR_POSITION 1 /* migr_record position offset on disk, | |
304 | * MIGR_REC_BUF_SECTORS <= MIGR_REC_SECTOR_POS | |
17a4eaf9 AK |
305 | */ |
306 | ||
8e59f3d8 AK |
307 | #define UNIT_SRC_NORMAL 0 /* Source data for curr_migr_unit must |
308 | * be recovered using srcMap */ | |
309 | #define UNIT_SRC_IN_CP_AREA 1 /* Source data for curr_migr_unit has | |
310 | * already been migrated and must | |
311 | * be recovered from checkpoint area */ | |
2432ce9b | 312 | |
c2462068 | 313 | #define PPL_ENTRY_SPACE (128 * 1024) /* Size of single PPL, without the header */ |
2432ce9b | 314 | |
8e59f3d8 AK |
315 | struct migr_record { |
316 | __u32 rec_status; /* Status used to determine how to restart | |
317 | * migration in case it aborts | |
318 | * in some fashion */ | |
9f421827 | 319 | __u32 curr_migr_unit_lo; /* 0..numMigrUnits-1 */ |
8e59f3d8 AK |
320 | __u32 family_num; /* Family number of MPB |
321 | * containing the RaidDev | |
322 | * that is migrating */ | |
323 | __u32 ascending_migr; /* True if migrating in increasing | |
324 | * order of lbas */ | |
325 | __u32 blocks_per_unit; /* Num disk blocks per unit of operation */ | |
326 | __u32 dest_depth_per_unit; /* Num member blocks each destMap | |
327 | * member disk | |
328 | * advances per unit-of-operation */ | |
9f421827 PB |
329 | __u32 ckpt_area_pba_lo; /* Pba of first block of ckpt copy area */ |
330 | __u32 dest_1st_member_lba_lo; /* First member lba on first | |
331 | * stripe of destination */ | |
332 | __u32 num_migr_units_lo; /* Total num migration units-of-op */ | |
8e59f3d8 AK |
333 | __u32 post_migr_vol_cap; /* Size of volume after |
334 | * migration completes */ | |
335 | __u32 post_migr_vol_cap_hi; /* Expansion space for LBA64 */ | |
336 | __u32 ckpt_read_disk_num; /* Which member disk in destSubMap[0] the | |
337 | * migration ckpt record was read from | |
338 | * (for recovered migrations) */ | |
9f421827 PB |
339 | __u32 curr_migr_unit_hi; /* 0..numMigrUnits-1 high order 32 bits */ |
340 | __u32 ckpt_area_pba_hi; /* Pba of first block of ckpt copy area | |
341 | * high order 32 bits */ | |
342 | __u32 dest_1st_member_lba_hi; /* First member lba on first stripe of | |
343 | * destination - high order 32 bits */ | |
344 | __u32 num_migr_units_hi; /* Total num migration units-of-op | |
345 | * high order 32 bits */ | |
761e3bd9 N |
346 | }; |
347 | ASSERT_SIZE(migr_record, 64) | |
8e59f3d8 | 348 | |
ec50f7b6 LM |
349 | struct md_list { |
350 | /* usage marker: | |
351 | * 1: load metadata | |
352 | * 2: metadata does not match | |
353 | * 4: already checked | |
354 | */ | |
355 | int used; | |
356 | char *devname; | |
357 | int found; | |
358 | int container; | |
359 | dev_t st_rdev; | |
360 | struct md_list *next; | |
361 | }; | |
362 | ||
e7b84f9d | 363 | #define pr_vrb(fmt, arg...) (void) (verbose && pr_err(fmt, ##arg)) |
ec50f7b6 | 364 | |
1484e727 DW |
365 | static __u8 migr_type(struct imsm_dev *dev) |
366 | { | |
367 | if (dev->vol.migr_type == MIGR_VERIFY && | |
368 | dev->status & DEV_VERIFY_AND_FIX) | |
369 | return MIGR_REPAIR; | |
370 | else | |
371 | return dev->vol.migr_type; | |
372 | } | |
373 | ||
374 | static void set_migr_type(struct imsm_dev *dev, __u8 migr_type) | |
375 | { | |
376 | /* for compatibility with older oroms convert MIGR_REPAIR, into | |
377 | * MIGR_VERIFY w/ DEV_VERIFY_AND_FIX status | |
378 | */ | |
379 | if (migr_type == MIGR_REPAIR) { | |
380 | dev->vol.migr_type = MIGR_VERIFY; | |
381 | dev->status |= DEV_VERIFY_AND_FIX; | |
382 | } else { | |
383 | dev->vol.migr_type = migr_type; | |
384 | dev->status &= ~DEV_VERIFY_AND_FIX; | |
385 | } | |
386 | } | |
387 | ||
f36a9ecd | 388 | static unsigned int sector_count(__u32 bytes, unsigned int sector_size) |
cdddbdbc | 389 | { |
f36a9ecd | 390 | return ROUND_UP(bytes, sector_size) / sector_size; |
87eb16df | 391 | } |
cdddbdbc | 392 | |
f36a9ecd PB |
393 | static unsigned int mpb_sectors(struct imsm_super *mpb, |
394 | unsigned int sector_size) | |
87eb16df | 395 | { |
f36a9ecd | 396 | return sector_count(__le32_to_cpu(mpb->mpb_size), sector_size); |
cdddbdbc DW |
397 | } |
398 | ||
ba2de7ba DW |
399 | struct intel_dev { |
400 | struct imsm_dev *dev; | |
401 | struct intel_dev *next; | |
f21e18ca | 402 | unsigned index; |
ba2de7ba DW |
403 | }; |
404 | ||
88654014 LM |
405 | struct intel_hba { |
406 | enum sys_dev_type type; | |
407 | char *path; | |
408 | char *pci_id; | |
409 | struct intel_hba *next; | |
410 | }; | |
411 | ||
1a64be56 LM |
412 | enum action { |
413 | DISK_REMOVE = 1, | |
414 | DISK_ADD | |
415 | }; | |
cdddbdbc DW |
416 | /* internal representation of IMSM metadata */ |
417 | struct intel_super { | |
418 | union { | |
949c47a0 DW |
419 | void *buf; /* O_DIRECT buffer for reading/writing metadata */ |
420 | struct imsm_super *anchor; /* immovable parameters */ | |
cdddbdbc | 421 | }; |
8e59f3d8 AK |
422 | union { |
423 | void *migr_rec_buf; /* buffer for I/O operations */ | |
424 | struct migr_record *migr_rec; /* migration record */ | |
425 | }; | |
51d83f5d AK |
426 | int clean_migration_record_by_mdmon; /* when reshape is switched to next |
427 | array, it indicates that mdmon is allowed to clean migration | |
428 | record */ | |
949c47a0 | 429 | size_t len; /* size of the 'buf' allocation */ |
bbab0940 | 430 | size_t extra_space; /* extra space in 'buf' that is not used yet */ |
4d7b1503 DW |
431 | void *next_buf; /* for realloc'ing buf from the manager */ |
432 | size_t next_len; | |
c2c087e6 | 433 | int updates_pending; /* count of pending updates for mdmon */ |
bf5a934a | 434 | int current_vol; /* index of raid device undergoing creation */ |
5551b113 | 435 | unsigned long long create_offset; /* common start for 'current_vol' */ |
148acb7b | 436 | __u32 random; /* random data for seeding new family numbers */ |
ba2de7ba | 437 | struct intel_dev *devlist; |
fa7bb6f8 | 438 | unsigned int sector_size; /* sector size of used member drives */ |
cdddbdbc DW |
439 | struct dl { |
440 | struct dl *next; | |
441 | int index; | |
442 | __u8 serial[MAX_RAID_SERIAL_LEN]; | |
443 | int major, minor; | |
444 | char *devname; | |
b9f594fe | 445 | struct imsm_disk disk; |
cdddbdbc | 446 | int fd; |
0dcecb2e DW |
447 | int extent_cnt; |
448 | struct extent *e; /* for determining freespace @ create */ | |
efb30e7f | 449 | int raiddisk; /* slot to fill in autolayout */ |
1a64be56 | 450 | enum action action; |
ca0748fa | 451 | } *disks, *current_disk; |
1a64be56 LM |
452 | struct dl *disk_mgmt_list; /* list of disks to add/remove while mdmon |
453 | active */ | |
47ee5a45 | 454 | struct dl *missing; /* disks removed while we weren't looking */ |
43dad3d6 | 455 | struct bbm_log *bbm_log; |
88654014 | 456 | struct intel_hba *hba; /* device path of the raid controller for this metadata */ |
88c32bb1 | 457 | const struct imsm_orom *orom; /* platform firmware support */ |
a2b97981 | 458 | struct intel_super *next; /* (temp) list for disambiguating family_num */ |
928f1424 | 459 | struct md_bb bb; /* memory for get_bad_blocks call */ |
a2b97981 DW |
460 | }; |
461 | ||
462 | struct intel_disk { | |
463 | struct imsm_disk disk; | |
464 | #define IMSM_UNKNOWN_OWNER (-1) | |
465 | int owner; | |
466 | struct intel_disk *next; | |
cdddbdbc DW |
467 | }; |
468 | ||
c2c087e6 DW |
469 | struct extent { |
470 | unsigned long long start, size; | |
471 | }; | |
472 | ||
694575e7 KW |
473 | /* definitions of reshape process types */ |
474 | enum imsm_reshape_type { | |
475 | CH_TAKEOVER, | |
b5347799 | 476 | CH_MIGRATION, |
7abc9871 | 477 | CH_ARRAY_SIZE, |
694575e7 KW |
478 | }; |
479 | ||
88758e9d DW |
480 | /* definition of messages passed to imsm_process_update */ |
481 | enum imsm_update_type { | |
482 | update_activate_spare, | |
8273f55e | 483 | update_create_array, |
33414a01 | 484 | update_kill_array, |
aa534678 | 485 | update_rename_array, |
1a64be56 | 486 | update_add_remove_disk, |
78b10e66 | 487 | update_reshape_container_disks, |
48c5303a | 488 | update_reshape_migration, |
2d40f3a1 AK |
489 | update_takeover, |
490 | update_general_migration_checkpoint, | |
f3871fdc | 491 | update_size_change, |
bbab0940 | 492 | update_prealloc_badblocks_mem, |
e6e9dd3f | 493 | update_rwh_policy, |
88758e9d DW |
494 | }; |
495 | ||
496 | struct imsm_update_activate_spare { | |
497 | enum imsm_update_type type; | |
d23fe947 | 498 | struct dl *dl; |
88758e9d DW |
499 | int slot; |
500 | int array; | |
501 | struct imsm_update_activate_spare *next; | |
502 | }; | |
503 | ||
78b10e66 | 504 | struct geo_params { |
4dd2df09 | 505 | char devnm[32]; |
78b10e66 | 506 | char *dev_name; |
d04f65f4 | 507 | unsigned long long size; |
78b10e66 N |
508 | int level; |
509 | int layout; | |
510 | int chunksize; | |
511 | int raid_disks; | |
512 | }; | |
513 | ||
bb025c2f KW |
514 | enum takeover_direction { |
515 | R10_TO_R0, | |
516 | R0_TO_R10 | |
517 | }; | |
518 | struct imsm_update_takeover { | |
519 | enum imsm_update_type type; | |
520 | int subarray; | |
521 | enum takeover_direction direction; | |
522 | }; | |
78b10e66 N |
523 | |
524 | struct imsm_update_reshape { | |
525 | enum imsm_update_type type; | |
526 | int old_raid_disks; | |
527 | int new_raid_disks; | |
48c5303a PC |
528 | |
529 | int new_disks[1]; /* new_raid_disks - old_raid_disks makedev number */ | |
530 | }; | |
531 | ||
532 | struct imsm_update_reshape_migration { | |
533 | enum imsm_update_type type; | |
534 | int old_raid_disks; | |
535 | int new_raid_disks; | |
536 | /* fields for array migration changes | |
537 | */ | |
538 | int subdev; | |
539 | int new_level; | |
540 | int new_layout; | |
4bba0439 | 541 | int new_chunksize; |
48c5303a | 542 | |
d195167d | 543 | int new_disks[1]; /* new_raid_disks - old_raid_disks makedev number */ |
78b10e66 N |
544 | }; |
545 | ||
f3871fdc AK |
546 | struct imsm_update_size_change { |
547 | enum imsm_update_type type; | |
548 | int subdev; | |
549 | long long new_size; | |
550 | }; | |
551 | ||
2d40f3a1 AK |
552 | struct imsm_update_general_migration_checkpoint { |
553 | enum imsm_update_type type; | |
554 | __u32 curr_migr_unit; | |
555 | }; | |
556 | ||
54c2c1ea DW |
557 | struct disk_info { |
558 | __u8 serial[MAX_RAID_SERIAL_LEN]; | |
559 | }; | |
560 | ||
8273f55e DW |
561 | struct imsm_update_create_array { |
562 | enum imsm_update_type type; | |
8273f55e | 563 | int dev_idx; |
6a3e913e | 564 | struct imsm_dev dev; |
8273f55e DW |
565 | }; |
566 | ||
33414a01 DW |
567 | struct imsm_update_kill_array { |
568 | enum imsm_update_type type; | |
569 | int dev_idx; | |
570 | }; | |
571 | ||
aa534678 DW |
572 | struct imsm_update_rename_array { |
573 | enum imsm_update_type type; | |
574 | __u8 name[MAX_RAID_SERIAL_LEN]; | |
575 | int dev_idx; | |
576 | }; | |
577 | ||
1a64be56 | 578 | struct imsm_update_add_remove_disk { |
43dad3d6 DW |
579 | enum imsm_update_type type; |
580 | }; | |
581 | ||
bbab0940 TM |
582 | struct imsm_update_prealloc_bb_mem { |
583 | enum imsm_update_type type; | |
584 | }; | |
585 | ||
e6e9dd3f AP |
586 | struct imsm_update_rwh_policy { |
587 | enum imsm_update_type type; | |
588 | int new_policy; | |
589 | int dev_idx; | |
590 | }; | |
591 | ||
88654014 LM |
592 | static const char *_sys_dev_type[] = { |
593 | [SYS_DEV_UNKNOWN] = "Unknown", | |
594 | [SYS_DEV_SAS] = "SAS", | |
614902f6 | 595 | [SYS_DEV_SATA] = "SATA", |
60f0f54d PB |
596 | [SYS_DEV_NVME] = "NVMe", |
597 | [SYS_DEV_VMD] = "VMD" | |
88654014 LM |
598 | }; |
599 | ||
600 | const char *get_sys_dev_type(enum sys_dev_type type) | |
601 | { | |
602 | if (type >= SYS_DEV_MAX) | |
603 | type = SYS_DEV_UNKNOWN; | |
604 | ||
605 | return _sys_dev_type[type]; | |
606 | } | |
607 | ||
608 | static struct intel_hba * alloc_intel_hba(struct sys_dev *device) | |
609 | { | |
503975b9 N |
610 | struct intel_hba *result = xmalloc(sizeof(*result)); |
611 | ||
612 | result->type = device->type; | |
613 | result->path = xstrdup(device->path); | |
614 | result->next = NULL; | |
615 | if (result->path && (result->pci_id = strrchr(result->path, '/')) != NULL) | |
616 | result->pci_id++; | |
617 | ||
88654014 LM |
618 | return result; |
619 | } | |
620 | ||
621 | static struct intel_hba * find_intel_hba(struct intel_hba *hba, struct sys_dev *device) | |
622 | { | |
594dc1b8 JS |
623 | struct intel_hba *result; |
624 | ||
88654014 LM |
625 | for (result = hba; result; result = result->next) { |
626 | if (result->type == device->type && strcmp(result->path, device->path) == 0) | |
627 | break; | |
628 | } | |
629 | return result; | |
630 | } | |
631 | ||
b4cf4cba | 632 | static int attach_hba_to_super(struct intel_super *super, struct sys_dev *device) |
88654014 LM |
633 | { |
634 | struct intel_hba *hba; | |
635 | ||
636 | /* check if disk attached to Intel HBA */ | |
637 | hba = find_intel_hba(super->hba, device); | |
638 | if (hba != NULL) | |
639 | return 1; | |
640 | /* Check if HBA is already attached to super */ | |
641 | if (super->hba == NULL) { | |
642 | super->hba = alloc_intel_hba(device); | |
643 | return 1; | |
6b781d33 AP |
644 | } |
645 | ||
646 | hba = super->hba; | |
647 | /* Intel metadata allows for all disks attached to the same type HBA. | |
614902f6 | 648 | * Do not support HBA types mixing |
6b781d33 AP |
649 | */ |
650 | if (device->type != hba->type) | |
88654014 | 651 | return 2; |
6b781d33 AP |
652 | |
653 | /* Multiple same type HBAs can be used if they share the same OROM */ | |
654 | const struct imsm_orom *device_orom = get_orom_by_device_id(device->dev_id); | |
655 | ||
656 | if (device_orom != super->orom) | |
657 | return 2; | |
658 | ||
659 | while (hba->next) | |
660 | hba = hba->next; | |
661 | ||
662 | hba->next = alloc_intel_hba(device); | |
663 | return 1; | |
88654014 LM |
664 | } |
665 | ||
666 | static struct sys_dev* find_disk_attached_hba(int fd, const char *devname) | |
667 | { | |
9bc4ae77 | 668 | struct sys_dev *list, *elem; |
88654014 LM |
669 | char *disk_path; |
670 | ||
671 | if ((list = find_intel_devices()) == NULL) | |
672 | return 0; | |
673 | ||
674 | if (fd < 0) | |
675 | disk_path = (char *) devname; | |
676 | else | |
677 | disk_path = diskfd_to_devpath(fd); | |
678 | ||
9bc4ae77 | 679 | if (!disk_path) |
88654014 | 680 | return 0; |
88654014 | 681 | |
9bc4ae77 N |
682 | for (elem = list; elem; elem = elem->next) |
683 | if (path_attached_to_hba(disk_path, elem->path)) | |
88654014 | 684 | return elem; |
9bc4ae77 | 685 | |
88654014 LM |
686 | if (disk_path != devname) |
687 | free(disk_path); | |
88654014 LM |
688 | |
689 | return NULL; | |
690 | } | |
691 | ||
d424212e N |
692 | static int find_intel_hba_capability(int fd, struct intel_super *super, |
693 | char *devname); | |
f2f5c343 | 694 | |
cdddbdbc DW |
695 | static struct supertype *match_metadata_desc_imsm(char *arg) |
696 | { | |
697 | struct supertype *st; | |
698 | ||
699 | if (strcmp(arg, "imsm") != 0 && | |
700 | strcmp(arg, "default") != 0 | |
701 | ) | |
702 | return NULL; | |
703 | ||
503975b9 | 704 | st = xcalloc(1, sizeof(*st)); |
cdddbdbc DW |
705 | st->ss = &super_imsm; |
706 | st->max_devs = IMSM_MAX_DEVICES; | |
707 | st->minor_version = 0; | |
708 | st->sb = NULL; | |
709 | return st; | |
710 | } | |
711 | ||
cdddbdbc DW |
712 | static __u8 *get_imsm_version(struct imsm_super *mpb) |
713 | { | |
714 | return &mpb->sig[MPB_SIG_LEN]; | |
715 | } | |
716 | ||
949c47a0 DW |
717 | /* retrieve a disk directly from the anchor when the anchor is known to be |
718 | * up-to-date, currently only at load time | |
719 | */ | |
720 | static struct imsm_disk *__get_imsm_disk(struct imsm_super *mpb, __u8 index) | |
cdddbdbc | 721 | { |
949c47a0 | 722 | if (index >= mpb->num_disks) |
cdddbdbc DW |
723 | return NULL; |
724 | return &mpb->disk[index]; | |
725 | } | |
726 | ||
95d07a2c LM |
727 | /* retrieve the disk description based on a index of the disk |
728 | * in the sub-array | |
729 | */ | |
730 | static struct dl *get_imsm_dl_disk(struct intel_super *super, __u8 index) | |
949c47a0 | 731 | { |
b9f594fe DW |
732 | struct dl *d; |
733 | ||
734 | for (d = super->disks; d; d = d->next) | |
735 | if (d->index == index) | |
95d07a2c LM |
736 | return d; |
737 | ||
738 | return NULL; | |
739 | } | |
740 | /* retrieve a disk from the parsed metadata */ | |
741 | static struct imsm_disk *get_imsm_disk(struct intel_super *super, __u8 index) | |
742 | { | |
743 | struct dl *dl; | |
744 | ||
745 | dl = get_imsm_dl_disk(super, index); | |
746 | if (dl) | |
747 | return &dl->disk; | |
748 | ||
b9f594fe | 749 | return NULL; |
949c47a0 DW |
750 | } |
751 | ||
752 | /* generate a checksum directly from the anchor when the anchor is known to be | |
753 | * up-to-date, currently only at load or write_super after coalescing | |
754 | */ | |
755 | static __u32 __gen_imsm_checksum(struct imsm_super *mpb) | |
cdddbdbc DW |
756 | { |
757 | __u32 end = mpb->mpb_size / sizeof(end); | |
758 | __u32 *p = (__u32 *) mpb; | |
759 | __u32 sum = 0; | |
760 | ||
5d500228 N |
761 | while (end--) { |
762 | sum += __le32_to_cpu(*p); | |
97f734fd N |
763 | p++; |
764 | } | |
cdddbdbc | 765 | |
5d500228 | 766 | return sum - __le32_to_cpu(mpb->check_sum); |
cdddbdbc DW |
767 | } |
768 | ||
a965f303 DW |
769 | static size_t sizeof_imsm_map(struct imsm_map *map) |
770 | { | |
771 | return sizeof(struct imsm_map) + sizeof(__u32) * (map->num_members - 1); | |
772 | } | |
773 | ||
774 | struct imsm_map *get_imsm_map(struct imsm_dev *dev, int second_map) | |
cdddbdbc | 775 | { |
5e7b0330 AK |
776 | /* A device can have 2 maps if it is in the middle of a migration. |
777 | * If second_map is: | |
238c0a71 AK |
778 | * MAP_0 - we return the first map |
779 | * MAP_1 - we return the second map if it exists, else NULL | |
780 | * MAP_X - we return the second map if it exists, else the first | |
5e7b0330 | 781 | */ |
a965f303 | 782 | struct imsm_map *map = &dev->vol.map[0]; |
9535fc47 | 783 | struct imsm_map *map2 = NULL; |
a965f303 | 784 | |
9535fc47 AK |
785 | if (dev->vol.migr_state) |
786 | map2 = (void *)map + sizeof_imsm_map(map); | |
a965f303 | 787 | |
9535fc47 | 788 | switch (second_map) { |
3b451610 | 789 | case MAP_0: |
9535fc47 | 790 | break; |
3b451610 | 791 | case MAP_1: |
9535fc47 AK |
792 | map = map2; |
793 | break; | |
238c0a71 | 794 | case MAP_X: |
9535fc47 AK |
795 | if (map2) |
796 | map = map2; | |
797 | break; | |
9535fc47 AK |
798 | default: |
799 | map = NULL; | |
800 | } | |
801 | return map; | |
5e7b0330 | 802 | |
a965f303 | 803 | } |
cdddbdbc | 804 | |
3393c6af DW |
805 | /* return the size of the device. |
806 | * migr_state increases the returned size if map[0] were to be duplicated | |
807 | */ | |
808 | static size_t sizeof_imsm_dev(struct imsm_dev *dev, int migr_state) | |
a965f303 DW |
809 | { |
810 | size_t size = sizeof(*dev) - sizeof(struct imsm_map) + | |
238c0a71 | 811 | sizeof_imsm_map(get_imsm_map(dev, MAP_0)); |
cdddbdbc DW |
812 | |
813 | /* migrating means an additional map */ | |
a965f303 | 814 | if (dev->vol.migr_state) |
238c0a71 | 815 | size += sizeof_imsm_map(get_imsm_map(dev, MAP_1)); |
3393c6af | 816 | else if (migr_state) |
238c0a71 | 817 | size += sizeof_imsm_map(get_imsm_map(dev, MAP_0)); |
cdddbdbc DW |
818 | |
819 | return size; | |
820 | } | |
821 | ||
54c2c1ea DW |
822 | /* retrieve disk serial number list from a metadata update */ |
823 | static struct disk_info *get_disk_info(struct imsm_update_create_array *update) | |
824 | { | |
825 | void *u = update; | |
826 | struct disk_info *inf; | |
827 | ||
828 | inf = u + sizeof(*update) - sizeof(struct imsm_dev) + | |
829 | sizeof_imsm_dev(&update->dev, 0); | |
830 | ||
831 | return inf; | |
832 | } | |
54c2c1ea | 833 | |
949c47a0 | 834 | static struct imsm_dev *__get_imsm_dev(struct imsm_super *mpb, __u8 index) |
cdddbdbc DW |
835 | { |
836 | int offset; | |
837 | int i; | |
838 | void *_mpb = mpb; | |
839 | ||
949c47a0 | 840 | if (index >= mpb->num_raid_devs) |
cdddbdbc DW |
841 | return NULL; |
842 | ||
843 | /* devices start after all disks */ | |
844 | offset = ((void *) &mpb->disk[mpb->num_disks]) - _mpb; | |
845 | ||
846 | for (i = 0; i <= index; i++) | |
847 | if (i == index) | |
848 | return _mpb + offset; | |
849 | else | |
3393c6af | 850 | offset += sizeof_imsm_dev(_mpb + offset, 0); |
cdddbdbc DW |
851 | |
852 | return NULL; | |
853 | } | |
854 | ||
949c47a0 DW |
855 | static struct imsm_dev *get_imsm_dev(struct intel_super *super, __u8 index) |
856 | { | |
ba2de7ba DW |
857 | struct intel_dev *dv; |
858 | ||
949c47a0 DW |
859 | if (index >= super->anchor->num_raid_devs) |
860 | return NULL; | |
ba2de7ba DW |
861 | for (dv = super->devlist; dv; dv = dv->next) |
862 | if (dv->index == index) | |
863 | return dv->dev; | |
864 | return NULL; | |
949c47a0 DW |
865 | } |
866 | ||
8d67477f TM |
867 | static inline unsigned long long __le48_to_cpu(const struct bbm_log_block_addr |
868 | *addr) | |
869 | { | |
870 | return ((((__u64)__le32_to_cpu(addr->dw1)) << 16) | | |
871 | __le16_to_cpu(addr->w1)); | |
872 | } | |
873 | ||
874 | static inline struct bbm_log_block_addr __cpu_to_le48(unsigned long long sec) | |
875 | { | |
876 | struct bbm_log_block_addr addr; | |
877 | ||
878 | addr.w1 = __cpu_to_le16((__u16)(sec & 0xffff)); | |
879 | addr.dw1 = __cpu_to_le32((__u32)(sec >> 16) & 0xffffffff); | |
880 | return addr; | |
881 | } | |
882 | ||
8d67477f TM |
883 | /* get size of the bbm log */ |
884 | static __u32 get_imsm_bbm_log_size(struct bbm_log *log) | |
885 | { | |
886 | if (!log || log->entry_count == 0) | |
887 | return 0; | |
888 | ||
889 | return sizeof(log->signature) + | |
890 | sizeof(log->entry_count) + | |
891 | log->entry_count * sizeof(struct bbm_log_entry); | |
892 | } | |
6f50473f TM |
893 | |
894 | /* check if bad block is not partially stored in bbm log */ | |
895 | static int is_stored_in_bbm(struct bbm_log *log, const __u8 idx, const unsigned | |
896 | long long sector, const int length, __u32 *pos) | |
897 | { | |
898 | __u32 i; | |
899 | ||
900 | for (i = *pos; i < log->entry_count; i++) { | |
901 | struct bbm_log_entry *entry = &log->marked_block_entries[i]; | |
902 | unsigned long long bb_start; | |
903 | unsigned long long bb_end; | |
904 | ||
905 | bb_start = __le48_to_cpu(&entry->defective_block_start); | |
906 | bb_end = bb_start + (entry->marked_count + 1); | |
907 | ||
908 | if ((entry->disk_ordinal == idx) && (bb_start >= sector) && | |
909 | (bb_end <= sector + length)) { | |
910 | *pos = i; | |
911 | return 1; | |
912 | } | |
913 | } | |
914 | return 0; | |
915 | } | |
916 | ||
917 | /* record new bad block in bbm log */ | |
918 | static int record_new_badblock(struct bbm_log *log, const __u8 idx, unsigned | |
919 | long long sector, int length) | |
920 | { | |
921 | int new_bb = 0; | |
922 | __u32 pos = 0; | |
923 | struct bbm_log_entry *entry = NULL; | |
924 | ||
925 | while (is_stored_in_bbm(log, idx, sector, length, &pos)) { | |
926 | struct bbm_log_entry *e = &log->marked_block_entries[pos]; | |
927 | ||
928 | if ((e->marked_count + 1 == BBM_LOG_MAX_LBA_ENTRY_VAL) && | |
929 | (__le48_to_cpu(&e->defective_block_start) == sector)) { | |
930 | sector += BBM_LOG_MAX_LBA_ENTRY_VAL; | |
931 | length -= BBM_LOG_MAX_LBA_ENTRY_VAL; | |
932 | pos = pos + 1; | |
933 | continue; | |
934 | } | |
935 | entry = e; | |
936 | break; | |
937 | } | |
938 | ||
939 | if (entry) { | |
940 | int cnt = (length <= BBM_LOG_MAX_LBA_ENTRY_VAL) ? length : | |
941 | BBM_LOG_MAX_LBA_ENTRY_VAL; | |
942 | entry->defective_block_start = __cpu_to_le48(sector); | |
943 | entry->marked_count = cnt - 1; | |
944 | if (cnt == length) | |
945 | return 1; | |
946 | sector += cnt; | |
947 | length -= cnt; | |
948 | } | |
949 | ||
950 | new_bb = ROUND_UP(length, BBM_LOG_MAX_LBA_ENTRY_VAL) / | |
951 | BBM_LOG_MAX_LBA_ENTRY_VAL; | |
952 | if (log->entry_count + new_bb > BBM_LOG_MAX_ENTRIES) | |
953 | return 0; | |
954 | ||
955 | while (length > 0) { | |
956 | int cnt = (length <= BBM_LOG_MAX_LBA_ENTRY_VAL) ? length : | |
957 | BBM_LOG_MAX_LBA_ENTRY_VAL; | |
958 | struct bbm_log_entry *entry = | |
959 | &log->marked_block_entries[log->entry_count]; | |
960 | ||
961 | entry->defective_block_start = __cpu_to_le48(sector); | |
962 | entry->marked_count = cnt - 1; | |
963 | entry->disk_ordinal = idx; | |
964 | ||
965 | sector += cnt; | |
966 | length -= cnt; | |
967 | ||
968 | log->entry_count++; | |
969 | } | |
970 | ||
971 | return new_bb; | |
972 | } | |
c07a5a4f | 973 | |
4c9e8c1e TM |
974 | /* clear all bad blocks for given disk */ |
975 | static void clear_disk_badblocks(struct bbm_log *log, const __u8 idx) | |
976 | { | |
977 | __u32 i = 0; | |
978 | ||
979 | while (i < log->entry_count) { | |
980 | struct bbm_log_entry *entries = log->marked_block_entries; | |
981 | ||
982 | if (entries[i].disk_ordinal == idx) { | |
983 | if (i < log->entry_count - 1) | |
984 | entries[i] = entries[log->entry_count - 1]; | |
985 | log->entry_count--; | |
986 | } else { | |
987 | i++; | |
988 | } | |
989 | } | |
990 | } | |
991 | ||
c07a5a4f TM |
992 | /* clear given bad block */ |
993 | static int clear_badblock(struct bbm_log *log, const __u8 idx, const unsigned | |
994 | long long sector, const int length) { | |
995 | __u32 i = 0; | |
996 | ||
997 | while (i < log->entry_count) { | |
998 | struct bbm_log_entry *entries = log->marked_block_entries; | |
999 | ||
1000 | if ((entries[i].disk_ordinal == idx) && | |
1001 | (__le48_to_cpu(&entries[i].defective_block_start) == | |
1002 | sector) && (entries[i].marked_count + 1 == length)) { | |
1003 | if (i < log->entry_count - 1) | |
1004 | entries[i] = entries[log->entry_count - 1]; | |
1005 | log->entry_count--; | |
1006 | break; | |
1007 | } | |
1008 | i++; | |
1009 | } | |
1010 | ||
1011 | return 1; | |
1012 | } | |
8d67477f TM |
1013 | |
1014 | /* allocate and load BBM log from metadata */ | |
1015 | static int load_bbm_log(struct intel_super *super) | |
1016 | { | |
1017 | struct imsm_super *mpb = super->anchor; | |
1018 | __u32 bbm_log_size = __le32_to_cpu(mpb->bbm_log_size); | |
1019 | ||
1020 | super->bbm_log = xcalloc(1, sizeof(struct bbm_log)); | |
1021 | if (!super->bbm_log) | |
1022 | return 1; | |
1023 | ||
1024 | if (bbm_log_size) { | |
1025 | struct bbm_log *log = (void *)mpb + | |
1026 | __le32_to_cpu(mpb->mpb_size) - bbm_log_size; | |
1027 | ||
1028 | __u32 entry_count; | |
1029 | ||
1030 | if (bbm_log_size < sizeof(log->signature) + | |
1031 | sizeof(log->entry_count)) | |
1032 | return 2; | |
1033 | ||
1034 | entry_count = __le32_to_cpu(log->entry_count); | |
1035 | if ((__le32_to_cpu(log->signature) != BBM_LOG_SIGNATURE) || | |
1036 | (entry_count > BBM_LOG_MAX_ENTRIES)) | |
1037 | return 3; | |
1038 | ||
1039 | if (bbm_log_size != | |
1040 | sizeof(log->signature) + sizeof(log->entry_count) + | |
1041 | entry_count * sizeof(struct bbm_log_entry)) | |
1042 | return 4; | |
1043 | ||
1044 | memcpy(super->bbm_log, log, bbm_log_size); | |
1045 | } else { | |
1046 | super->bbm_log->signature = __cpu_to_le32(BBM_LOG_SIGNATURE); | |
1047 | super->bbm_log->entry_count = 0; | |
1048 | } | |
1049 | ||
1050 | return 0; | |
1051 | } | |
1052 | ||
b12796be TM |
1053 | /* checks if bad block is within volume boundaries */ |
1054 | static int is_bad_block_in_volume(const struct bbm_log_entry *entry, | |
1055 | const unsigned long long start_sector, | |
1056 | const unsigned long long size) | |
1057 | { | |
1058 | unsigned long long bb_start; | |
1059 | unsigned long long bb_end; | |
1060 | ||
1061 | bb_start = __le48_to_cpu(&entry->defective_block_start); | |
1062 | bb_end = bb_start + (entry->marked_count + 1); | |
1063 | ||
1064 | if (((bb_start >= start_sector) && (bb_start < start_sector + size)) || | |
1065 | ((bb_end >= start_sector) && (bb_end <= start_sector + size))) | |
1066 | return 1; | |
1067 | ||
1068 | return 0; | |
1069 | } | |
1070 | ||
1071 | /* get list of bad blocks on a drive for a volume */ | |
1072 | static void get_volume_badblocks(const struct bbm_log *log, const __u8 idx, | |
1073 | const unsigned long long start_sector, | |
1074 | const unsigned long long size, | |
1075 | struct md_bb *bbs) | |
1076 | { | |
1077 | __u32 count = 0; | |
1078 | __u32 i; | |
1079 | ||
1080 | for (i = 0; i < log->entry_count; i++) { | |
1081 | const struct bbm_log_entry *ent = | |
1082 | &log->marked_block_entries[i]; | |
1083 | struct md_bb_entry *bb; | |
1084 | ||
1085 | if ((ent->disk_ordinal == idx) && | |
1086 | is_bad_block_in_volume(ent, start_sector, size)) { | |
1087 | ||
1088 | if (!bbs->entries) { | |
1089 | bbs->entries = xmalloc(BBM_LOG_MAX_ENTRIES * | |
1090 | sizeof(*bb)); | |
1091 | if (!bbs->entries) | |
1092 | break; | |
1093 | } | |
1094 | ||
1095 | bb = &bbs->entries[count++]; | |
1096 | bb->sector = __le48_to_cpu(&ent->defective_block_start); | |
1097 | bb->length = ent->marked_count + 1; | |
1098 | } | |
1099 | } | |
1100 | bbs->count = count; | |
1101 | } | |
1102 | ||
98130f40 AK |
1103 | /* |
1104 | * for second_map: | |
238c0a71 AK |
1105 | * == MAP_0 get first map |
1106 | * == MAP_1 get second map | |
1107 | * == MAP_X than get map according to the current migr_state | |
98130f40 AK |
1108 | */ |
1109 | static __u32 get_imsm_ord_tbl_ent(struct imsm_dev *dev, | |
1110 | int slot, | |
1111 | int second_map) | |
7eef0453 DW |
1112 | { |
1113 | struct imsm_map *map; | |
1114 | ||
5e7b0330 | 1115 | map = get_imsm_map(dev, second_map); |
7eef0453 | 1116 | |
ff077194 DW |
1117 | /* top byte identifies disk under rebuild */ |
1118 | return __le32_to_cpu(map->disk_ord_tbl[slot]); | |
1119 | } | |
1120 | ||
1121 | #define ord_to_idx(ord) (((ord) << 8) >> 8) | |
98130f40 | 1122 | static __u32 get_imsm_disk_idx(struct imsm_dev *dev, int slot, int second_map) |
ff077194 | 1123 | { |
98130f40 | 1124 | __u32 ord = get_imsm_ord_tbl_ent(dev, slot, second_map); |
ff077194 DW |
1125 | |
1126 | return ord_to_idx(ord); | |
7eef0453 DW |
1127 | } |
1128 | ||
be73972f DW |
1129 | static void set_imsm_ord_tbl_ent(struct imsm_map *map, int slot, __u32 ord) |
1130 | { | |
1131 | map->disk_ord_tbl[slot] = __cpu_to_le32(ord); | |
1132 | } | |
1133 | ||
f21e18ca | 1134 | static int get_imsm_disk_slot(struct imsm_map *map, unsigned idx) |
620b1713 DW |
1135 | { |
1136 | int slot; | |
1137 | __u32 ord; | |
1138 | ||
1139 | for (slot = 0; slot < map->num_members; slot++) { | |
1140 | ord = __le32_to_cpu(map->disk_ord_tbl[slot]); | |
1141 | if (ord_to_idx(ord) == idx) | |
1142 | return slot; | |
1143 | } | |
1144 | ||
1145 | return -1; | |
1146 | } | |
1147 | ||
cdddbdbc DW |
1148 | static int get_imsm_raid_level(struct imsm_map *map) |
1149 | { | |
1150 | if (map->raid_level == 1) { | |
1151 | if (map->num_members == 2) | |
1152 | return 1; | |
1153 | else | |
1154 | return 10; | |
1155 | } | |
1156 | ||
1157 | return map->raid_level; | |
1158 | } | |
1159 | ||
c2c087e6 DW |
1160 | static int cmp_extent(const void *av, const void *bv) |
1161 | { | |
1162 | const struct extent *a = av; | |
1163 | const struct extent *b = bv; | |
1164 | if (a->start < b->start) | |
1165 | return -1; | |
1166 | if (a->start > b->start) | |
1167 | return 1; | |
1168 | return 0; | |
1169 | } | |
1170 | ||
0dcecb2e | 1171 | static int count_memberships(struct dl *dl, struct intel_super *super) |
c2c087e6 | 1172 | { |
c2c087e6 | 1173 | int memberships = 0; |
620b1713 | 1174 | int i; |
c2c087e6 | 1175 | |
949c47a0 DW |
1176 | for (i = 0; i < super->anchor->num_raid_devs; i++) { |
1177 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
238c0a71 | 1178 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
c2c087e6 | 1179 | |
620b1713 DW |
1180 | if (get_imsm_disk_slot(map, dl->index) >= 0) |
1181 | memberships++; | |
c2c087e6 | 1182 | } |
0dcecb2e DW |
1183 | |
1184 | return memberships; | |
1185 | } | |
1186 | ||
b81221b7 CA |
1187 | static __u32 imsm_min_reserved_sectors(struct intel_super *super); |
1188 | ||
486720e0 | 1189 | static int split_ull(unsigned long long n, void *lo, void *hi) |
5551b113 CA |
1190 | { |
1191 | if (lo == 0 || hi == 0) | |
1192 | return 1; | |
486720e0 JS |
1193 | __put_unaligned32(__cpu_to_le32((__u32)n), lo); |
1194 | __put_unaligned32(__cpu_to_le32((n >> 32)), hi); | |
5551b113 CA |
1195 | return 0; |
1196 | } | |
1197 | ||
1198 | static unsigned long long join_u32(__u32 lo, __u32 hi) | |
1199 | { | |
1200 | return (unsigned long long)__le32_to_cpu(lo) | | |
1201 | (((unsigned long long)__le32_to_cpu(hi)) << 32); | |
1202 | } | |
1203 | ||
1204 | static unsigned long long total_blocks(struct imsm_disk *disk) | |
1205 | { | |
1206 | if (disk == NULL) | |
1207 | return 0; | |
1208 | return join_u32(disk->total_blocks_lo, disk->total_blocks_hi); | |
1209 | } | |
1210 | ||
1211 | static unsigned long long pba_of_lba0(struct imsm_map *map) | |
1212 | { | |
1213 | if (map == NULL) | |
1214 | return 0; | |
1215 | return join_u32(map->pba_of_lba0_lo, map->pba_of_lba0_hi); | |
1216 | } | |
1217 | ||
1218 | static unsigned long long blocks_per_member(struct imsm_map *map) | |
1219 | { | |
1220 | if (map == NULL) | |
1221 | return 0; | |
1222 | return join_u32(map->blocks_per_member_lo, map->blocks_per_member_hi); | |
1223 | } | |
1224 | ||
1225 | static unsigned long long num_data_stripes(struct imsm_map *map) | |
1226 | { | |
1227 | if (map == NULL) | |
1228 | return 0; | |
1229 | return join_u32(map->num_data_stripes_lo, map->num_data_stripes_hi); | |
1230 | } | |
1231 | ||
fcc2c9da MD |
1232 | static unsigned long long imsm_dev_size(struct imsm_dev *dev) |
1233 | { | |
1234 | if (dev == NULL) | |
1235 | return 0; | |
1236 | return join_u32(dev->size_low, dev->size_high); | |
1237 | } | |
1238 | ||
9f421827 PB |
1239 | static unsigned long long migr_chkp_area_pba(struct migr_record *migr_rec) |
1240 | { | |
1241 | if (migr_rec == NULL) | |
1242 | return 0; | |
1243 | return join_u32(migr_rec->ckpt_area_pba_lo, | |
1244 | migr_rec->ckpt_area_pba_hi); | |
1245 | } | |
1246 | ||
1247 | static unsigned long long current_migr_unit(struct migr_record *migr_rec) | |
1248 | { | |
1249 | if (migr_rec == NULL) | |
1250 | return 0; | |
1251 | return join_u32(migr_rec->curr_migr_unit_lo, | |
1252 | migr_rec->curr_migr_unit_hi); | |
1253 | } | |
1254 | ||
1255 | static unsigned long long migr_dest_1st_member_lba(struct migr_record *migr_rec) | |
1256 | { | |
1257 | if (migr_rec == NULL) | |
1258 | return 0; | |
1259 | return join_u32(migr_rec->dest_1st_member_lba_lo, | |
1260 | migr_rec->dest_1st_member_lba_hi); | |
1261 | } | |
1262 | ||
1263 | static unsigned long long get_num_migr_units(struct migr_record *migr_rec) | |
1264 | { | |
1265 | if (migr_rec == NULL) | |
1266 | return 0; | |
1267 | return join_u32(migr_rec->num_migr_units_lo, | |
1268 | migr_rec->num_migr_units_hi); | |
1269 | } | |
1270 | ||
5551b113 CA |
1271 | static void set_total_blocks(struct imsm_disk *disk, unsigned long long n) |
1272 | { | |
1273 | split_ull(n, &disk->total_blocks_lo, &disk->total_blocks_hi); | |
1274 | } | |
1275 | ||
1276 | static void set_pba_of_lba0(struct imsm_map *map, unsigned long long n) | |
1277 | { | |
1278 | split_ull(n, &map->pba_of_lba0_lo, &map->pba_of_lba0_hi); | |
1279 | } | |
1280 | ||
1281 | static void set_blocks_per_member(struct imsm_map *map, unsigned long long n) | |
1282 | { | |
1283 | split_ull(n, &map->blocks_per_member_lo, &map->blocks_per_member_hi); | |
1284 | } | |
1285 | ||
1286 | static void set_num_data_stripes(struct imsm_map *map, unsigned long long n) | |
1287 | { | |
1288 | split_ull(n, &map->num_data_stripes_lo, &map->num_data_stripes_hi); | |
1289 | } | |
1290 | ||
fcc2c9da MD |
1291 | static void set_imsm_dev_size(struct imsm_dev *dev, unsigned long long n) |
1292 | { | |
1293 | split_ull(n, &dev->size_low, &dev->size_high); | |
1294 | } | |
1295 | ||
9f421827 PB |
1296 | static void set_migr_chkp_area_pba(struct migr_record *migr_rec, |
1297 | unsigned long long n) | |
1298 | { | |
1299 | split_ull(n, &migr_rec->ckpt_area_pba_lo, &migr_rec->ckpt_area_pba_hi); | |
1300 | } | |
1301 | ||
1302 | static void set_current_migr_unit(struct migr_record *migr_rec, | |
1303 | unsigned long long n) | |
1304 | { | |
1305 | split_ull(n, &migr_rec->curr_migr_unit_lo, | |
1306 | &migr_rec->curr_migr_unit_hi); | |
1307 | } | |
1308 | ||
1309 | static void set_migr_dest_1st_member_lba(struct migr_record *migr_rec, | |
1310 | unsigned long long n) | |
1311 | { | |
1312 | split_ull(n, &migr_rec->dest_1st_member_lba_lo, | |
1313 | &migr_rec->dest_1st_member_lba_hi); | |
1314 | } | |
1315 | ||
1316 | static void set_num_migr_units(struct migr_record *migr_rec, | |
1317 | unsigned long long n) | |
1318 | { | |
1319 | split_ull(n, &migr_rec->num_migr_units_lo, | |
1320 | &migr_rec->num_migr_units_hi); | |
1321 | } | |
1322 | ||
44490938 MD |
1323 | static unsigned long long per_dev_array_size(struct imsm_map *map) |
1324 | { | |
1325 | unsigned long long array_size = 0; | |
1326 | ||
1327 | if (map == NULL) | |
1328 | return array_size; | |
1329 | ||
1330 | array_size = num_data_stripes(map) * map->blocks_per_strip; | |
1331 | if (get_imsm_raid_level(map) == 1 || get_imsm_raid_level(map) == 10) | |
1332 | array_size *= 2; | |
1333 | ||
1334 | return array_size; | |
1335 | } | |
1336 | ||
05501181 PB |
1337 | static struct extent *get_extents(struct intel_super *super, struct dl *dl, |
1338 | int get_minimal_reservation) | |
0dcecb2e DW |
1339 | { |
1340 | /* find a list of used extents on the given physical device */ | |
1341 | struct extent *rv, *e; | |
620b1713 | 1342 | int i; |
0dcecb2e | 1343 | int memberships = count_memberships(dl, super); |
b276dd33 DW |
1344 | __u32 reservation; |
1345 | ||
1346 | /* trim the reserved area for spares, so they can join any array | |
1347 | * regardless of whether the OROM has assigned sectors from the | |
1348 | * IMSM_RESERVED_SECTORS region | |
1349 | */ | |
05501181 | 1350 | if (dl->index == -1 || get_minimal_reservation) |
b81221b7 | 1351 | reservation = imsm_min_reserved_sectors(super); |
b276dd33 DW |
1352 | else |
1353 | reservation = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
0dcecb2e | 1354 | |
503975b9 | 1355 | rv = xcalloc(sizeof(struct extent), (memberships + 1)); |
c2c087e6 DW |
1356 | e = rv; |
1357 | ||
949c47a0 DW |
1358 | for (i = 0; i < super->anchor->num_raid_devs; i++) { |
1359 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
238c0a71 | 1360 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
c2c087e6 | 1361 | |
620b1713 | 1362 | if (get_imsm_disk_slot(map, dl->index) >= 0) { |
5551b113 | 1363 | e->start = pba_of_lba0(map); |
44490938 | 1364 | e->size = per_dev_array_size(map); |
620b1713 | 1365 | e++; |
c2c087e6 DW |
1366 | } |
1367 | } | |
1368 | qsort(rv, memberships, sizeof(*rv), cmp_extent); | |
1369 | ||
1011e834 | 1370 | /* determine the start of the metadata |
14e8215b DW |
1371 | * when no raid devices are defined use the default |
1372 | * ...otherwise allow the metadata to truncate the value | |
1373 | * as is the case with older versions of imsm | |
1374 | */ | |
1375 | if (memberships) { | |
1376 | struct extent *last = &rv[memberships - 1]; | |
5551b113 | 1377 | unsigned long long remainder; |
14e8215b | 1378 | |
5551b113 | 1379 | remainder = total_blocks(&dl->disk) - (last->start + last->size); |
dda5855f DW |
1380 | /* round down to 1k block to satisfy precision of the kernel |
1381 | * 'size' interface | |
1382 | */ | |
1383 | remainder &= ~1UL; | |
1384 | /* make sure remainder is still sane */ | |
f21e18ca | 1385 | if (remainder < (unsigned)ROUND_UP(super->len, 512) >> 9) |
dda5855f | 1386 | remainder = ROUND_UP(super->len, 512) >> 9; |
14e8215b DW |
1387 | if (reservation > remainder) |
1388 | reservation = remainder; | |
1389 | } | |
5551b113 | 1390 | e->start = total_blocks(&dl->disk) - reservation; |
c2c087e6 DW |
1391 | e->size = 0; |
1392 | return rv; | |
1393 | } | |
1394 | ||
14e8215b DW |
1395 | /* try to determine how much space is reserved for metadata from |
1396 | * the last get_extents() entry, otherwise fallback to the | |
1397 | * default | |
1398 | */ | |
1399 | static __u32 imsm_reserved_sectors(struct intel_super *super, struct dl *dl) | |
1400 | { | |
1401 | struct extent *e; | |
1402 | int i; | |
1403 | __u32 rv; | |
1404 | ||
1405 | /* for spares just return a minimal reservation which will grow | |
1406 | * once the spare is picked up by an array | |
1407 | */ | |
1408 | if (dl->index == -1) | |
1409 | return MPB_SECTOR_CNT; | |
1410 | ||
05501181 | 1411 | e = get_extents(super, dl, 0); |
14e8215b DW |
1412 | if (!e) |
1413 | return MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
1414 | ||
1415 | /* scroll to last entry */ | |
1416 | for (i = 0; e[i].size; i++) | |
1417 | continue; | |
1418 | ||
5551b113 | 1419 | rv = total_blocks(&dl->disk) - e[i].start; |
14e8215b DW |
1420 | |
1421 | free(e); | |
1422 | ||
1423 | return rv; | |
1424 | } | |
1425 | ||
25ed7e59 DW |
1426 | static int is_spare(struct imsm_disk *disk) |
1427 | { | |
1428 | return (disk->status & SPARE_DISK) == SPARE_DISK; | |
1429 | } | |
1430 | ||
1431 | static int is_configured(struct imsm_disk *disk) | |
1432 | { | |
1433 | return (disk->status & CONFIGURED_DISK) == CONFIGURED_DISK; | |
1434 | } | |
1435 | ||
1436 | static int is_failed(struct imsm_disk *disk) | |
1437 | { | |
1438 | return (disk->status & FAILED_DISK) == FAILED_DISK; | |
1439 | } | |
1440 | ||
2432ce9b AP |
1441 | static int is_journal(struct imsm_disk *disk) |
1442 | { | |
1443 | return (disk->status & JOURNAL_DISK) == JOURNAL_DISK; | |
1444 | } | |
1445 | ||
b53bfba6 TM |
1446 | /* round array size down to closest MB and ensure it splits evenly |
1447 | * between members | |
1448 | */ | |
1449 | static unsigned long long round_size_to_mb(unsigned long long size, unsigned int | |
1450 | disk_count) | |
1451 | { | |
1452 | size /= disk_count; | |
1453 | size = (size >> SECT_PER_MB_SHIFT) << SECT_PER_MB_SHIFT; | |
1454 | size *= disk_count; | |
1455 | ||
1456 | return size; | |
1457 | } | |
1458 | ||
8b9cd157 MK |
1459 | static int able_to_resync(int raid_level, int missing_disks) |
1460 | { | |
1461 | int max_missing_disks = 0; | |
1462 | ||
1463 | switch (raid_level) { | |
1464 | case 10: | |
1465 | max_missing_disks = 1; | |
1466 | break; | |
1467 | default: | |
1468 | max_missing_disks = 0; | |
1469 | } | |
1470 | return missing_disks <= max_missing_disks; | |
1471 | } | |
1472 | ||
b81221b7 CA |
1473 | /* try to determine how much space is reserved for metadata from |
1474 | * the last get_extents() entry on the smallest active disk, | |
1475 | * otherwise fallback to the default | |
1476 | */ | |
1477 | static __u32 imsm_min_reserved_sectors(struct intel_super *super) | |
1478 | { | |
1479 | struct extent *e; | |
1480 | int i; | |
5551b113 CA |
1481 | unsigned long long min_active; |
1482 | __u32 remainder; | |
b81221b7 CA |
1483 | __u32 rv = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; |
1484 | struct dl *dl, *dl_min = NULL; | |
1485 | ||
1486 | if (!super) | |
1487 | return rv; | |
1488 | ||
1489 | min_active = 0; | |
1490 | for (dl = super->disks; dl; dl = dl->next) { | |
1491 | if (dl->index < 0) | |
1492 | continue; | |
5551b113 CA |
1493 | unsigned long long blocks = total_blocks(&dl->disk); |
1494 | if (blocks < min_active || min_active == 0) { | |
b81221b7 | 1495 | dl_min = dl; |
5551b113 | 1496 | min_active = blocks; |
b81221b7 CA |
1497 | } |
1498 | } | |
1499 | if (!dl_min) | |
1500 | return rv; | |
1501 | ||
1502 | /* find last lba used by subarrays on the smallest active disk */ | |
05501181 | 1503 | e = get_extents(super, dl_min, 0); |
b81221b7 CA |
1504 | if (!e) |
1505 | return rv; | |
1506 | for (i = 0; e[i].size; i++) | |
1507 | continue; | |
1508 | ||
1509 | remainder = min_active - e[i].start; | |
1510 | free(e); | |
1511 | ||
1512 | /* to give priority to recovery we should not require full | |
1513 | IMSM_RESERVED_SECTORS from the spare */ | |
1514 | rv = MPB_SECTOR_CNT + NUM_BLOCKS_DIRTY_STRIPE_REGION; | |
1515 | ||
1516 | /* if real reservation is smaller use that value */ | |
1517 | return (remainder < rv) ? remainder : rv; | |
1518 | } | |
1519 | ||
fbfdcb06 AO |
1520 | /* |
1521 | * Return minimum size of a spare and sector size | |
1522 | * that can be used in this array | |
1523 | */ | |
1524 | int get_spare_criteria_imsm(struct supertype *st, struct spare_criteria *c) | |
80e7f8c3 AC |
1525 | { |
1526 | struct intel_super *super = st->sb; | |
1527 | struct dl *dl; | |
1528 | struct extent *e; | |
1529 | int i; | |
fbfdcb06 AO |
1530 | unsigned long long size = 0; |
1531 | ||
1532 | c->min_size = 0; | |
4b57ecf6 | 1533 | c->sector_size = 0; |
80e7f8c3 AC |
1534 | |
1535 | if (!super) | |
fbfdcb06 | 1536 | return -EINVAL; |
80e7f8c3 AC |
1537 | /* find first active disk in array */ |
1538 | dl = super->disks; | |
1539 | while (dl && (is_failed(&dl->disk) || dl->index == -1)) | |
1540 | dl = dl->next; | |
1541 | if (!dl) | |
fbfdcb06 | 1542 | return -EINVAL; |
80e7f8c3 | 1543 | /* find last lba used by subarrays */ |
05501181 | 1544 | e = get_extents(super, dl, 0); |
80e7f8c3 | 1545 | if (!e) |
fbfdcb06 | 1546 | return -EINVAL; |
80e7f8c3 AC |
1547 | for (i = 0; e[i].size; i++) |
1548 | continue; | |
1549 | if (i > 0) | |
fbfdcb06 | 1550 | size = e[i-1].start + e[i-1].size; |
80e7f8c3 | 1551 | free(e); |
b81221b7 | 1552 | |
80e7f8c3 | 1553 | /* add the amount of space needed for metadata */ |
fbfdcb06 AO |
1554 | size += imsm_min_reserved_sectors(super); |
1555 | ||
1556 | c->min_size = size * 512; | |
4b57ecf6 | 1557 | c->sector_size = super->sector_size; |
b81221b7 | 1558 | |
fbfdcb06 | 1559 | return 0; |
80e7f8c3 AC |
1560 | } |
1561 | ||
d1e02575 AK |
1562 | static int is_gen_migration(struct imsm_dev *dev); |
1563 | ||
f36a9ecd PB |
1564 | #define IMSM_4K_DIV 8 |
1565 | ||
c47b0ff6 AK |
1566 | static __u64 blocks_per_migr_unit(struct intel_super *super, |
1567 | struct imsm_dev *dev); | |
1e5c6983 | 1568 | |
c47b0ff6 AK |
1569 | static void print_imsm_dev(struct intel_super *super, |
1570 | struct imsm_dev *dev, | |
1571 | char *uuid, | |
1572 | int disk_idx) | |
cdddbdbc DW |
1573 | { |
1574 | __u64 sz; | |
0d80bb2f | 1575 | int slot, i; |
238c0a71 AK |
1576 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
1577 | struct imsm_map *map2 = get_imsm_map(dev, MAP_1); | |
b10b37b8 | 1578 | __u32 ord; |
cdddbdbc DW |
1579 | |
1580 | printf("\n"); | |
1e7bc0ed | 1581 | printf("[%.16s]:\n", dev->volume); |
ba1b3bc8 | 1582 | printf(" Subarray : %d\n", super->current_vol); |
44470971 | 1583 | printf(" UUID : %s\n", uuid); |
dd8bcb3b AK |
1584 | printf(" RAID Level : %d", get_imsm_raid_level(map)); |
1585 | if (map2) | |
1586 | printf(" <-- %d", get_imsm_raid_level(map2)); | |
1587 | printf("\n"); | |
1588 | printf(" Members : %d", map->num_members); | |
1589 | if (map2) | |
1590 | printf(" <-- %d", map2->num_members); | |
1591 | printf("\n"); | |
0d80bb2f DW |
1592 | printf(" Slots : ["); |
1593 | for (i = 0; i < map->num_members; i++) { | |
238c0a71 | 1594 | ord = get_imsm_ord_tbl_ent(dev, i, MAP_0); |
0d80bb2f DW |
1595 | printf("%s", ord & IMSM_ORD_REBUILD ? "_" : "U"); |
1596 | } | |
dd8bcb3b AK |
1597 | printf("]"); |
1598 | if (map2) { | |
1599 | printf(" <-- ["); | |
1600 | for (i = 0; i < map2->num_members; i++) { | |
238c0a71 | 1601 | ord = get_imsm_ord_tbl_ent(dev, i, MAP_1); |
dd8bcb3b AK |
1602 | printf("%s", ord & IMSM_ORD_REBUILD ? "_" : "U"); |
1603 | } | |
1604 | printf("]"); | |
1605 | } | |
1606 | printf("\n"); | |
7095bccb AK |
1607 | printf(" Failed disk : "); |
1608 | if (map->failed_disk_num == 0xff) | |
1609 | printf("none"); | |
1610 | else | |
1611 | printf("%i", map->failed_disk_num); | |
1612 | printf("\n"); | |
620b1713 DW |
1613 | slot = get_imsm_disk_slot(map, disk_idx); |
1614 | if (slot >= 0) { | |
238c0a71 | 1615 | ord = get_imsm_ord_tbl_ent(dev, slot, MAP_X); |
b10b37b8 DW |
1616 | printf(" This Slot : %d%s\n", slot, |
1617 | ord & IMSM_ORD_REBUILD ? " (out-of-sync)" : ""); | |
1618 | } else | |
cdddbdbc | 1619 | printf(" This Slot : ?\n"); |
84918897 | 1620 | printf(" Sector Size : %u\n", super->sector_size); |
fcc2c9da | 1621 | sz = imsm_dev_size(dev); |
84918897 MK |
1622 | printf(" Array Size : %llu%s\n", |
1623 | (unsigned long long)sz * 512 / super->sector_size, | |
cdddbdbc | 1624 | human_size(sz * 512)); |
5551b113 | 1625 | sz = blocks_per_member(map); |
84918897 MK |
1626 | printf(" Per Dev Size : %llu%s\n", |
1627 | (unsigned long long)sz * 512 / super->sector_size, | |
cdddbdbc | 1628 | human_size(sz * 512)); |
5551b113 CA |
1629 | printf(" Sector Offset : %llu\n", |
1630 | pba_of_lba0(map)); | |
1631 | printf(" Num Stripes : %llu\n", | |
1632 | num_data_stripes(map)); | |
dd8bcb3b | 1633 | printf(" Chunk Size : %u KiB", |
cdddbdbc | 1634 | __le16_to_cpu(map->blocks_per_strip) / 2); |
dd8bcb3b AK |
1635 | if (map2) |
1636 | printf(" <-- %u KiB", | |
1637 | __le16_to_cpu(map2->blocks_per_strip) / 2); | |
1638 | printf("\n"); | |
cdddbdbc | 1639 | printf(" Reserved : %d\n", __le32_to_cpu(dev->reserved_blocks)); |
8655a7b1 | 1640 | printf(" Migrate State : "); |
1484e727 DW |
1641 | if (dev->vol.migr_state) { |
1642 | if (migr_type(dev) == MIGR_INIT) | |
8655a7b1 | 1643 | printf("initialize\n"); |
1484e727 | 1644 | else if (migr_type(dev) == MIGR_REBUILD) |
8655a7b1 | 1645 | printf("rebuild\n"); |
1484e727 | 1646 | else if (migr_type(dev) == MIGR_VERIFY) |
8655a7b1 | 1647 | printf("check\n"); |
1484e727 | 1648 | else if (migr_type(dev) == MIGR_GEN_MIGR) |
8655a7b1 | 1649 | printf("general migration\n"); |
1484e727 | 1650 | else if (migr_type(dev) == MIGR_STATE_CHANGE) |
8655a7b1 | 1651 | printf("state change\n"); |
1484e727 | 1652 | else if (migr_type(dev) == MIGR_REPAIR) |
8655a7b1 | 1653 | printf("repair\n"); |
1484e727 | 1654 | else |
8655a7b1 DW |
1655 | printf("<unknown:%d>\n", migr_type(dev)); |
1656 | } else | |
1657 | printf("idle\n"); | |
3393c6af DW |
1658 | printf(" Map State : %s", map_state_str[map->map_state]); |
1659 | if (dev->vol.migr_state) { | |
238c0a71 | 1660 | struct imsm_map *map = get_imsm_map(dev, MAP_1); |
1e5c6983 | 1661 | |
b10b37b8 | 1662 | printf(" <-- %s", map_state_str[map->map_state]); |
464d40e8 LD |
1663 | printf("\n Checkpoint : %u ", |
1664 | __le32_to_cpu(dev->vol.curr_migr_unit)); | |
089f9d79 | 1665 | if (is_gen_migration(dev) && (slot > 1 || slot < 0)) |
464d40e8 LD |
1666 | printf("(N/A)"); |
1667 | else | |
1668 | printf("(%llu)", (unsigned long long) | |
1669 | blocks_per_migr_unit(super, dev)); | |
3393c6af DW |
1670 | } |
1671 | printf("\n"); | |
2432ce9b AP |
1672 | printf(" Dirty State : %s\n", (dev->vol.dirty & RAIDVOL_DIRTY) ? |
1673 | "dirty" : "clean"); | |
1674 | printf(" RWH Policy : "); | |
c2462068 | 1675 | if (dev->rwh_policy == RWH_OFF || dev->rwh_policy == RWH_MULTIPLE_OFF) |
2432ce9b AP |
1676 | printf("off\n"); |
1677 | else if (dev->rwh_policy == RWH_DISTRIBUTED) | |
1678 | printf("PPL distributed\n"); | |
1679 | else if (dev->rwh_policy == RWH_JOURNALING_DRIVE) | |
1680 | printf("PPL journaling drive\n"); | |
c2462068 PB |
1681 | else if (dev->rwh_policy == RWH_MULTIPLE_DISTRIBUTED) |
1682 | printf("Multiple distributed PPLs\n"); | |
1683 | else if (dev->rwh_policy == RWH_MULTIPLE_PPLS_JOURNALING_DRIVE) | |
1684 | printf("Multiple PPLs on journaling drive\n"); | |
2432ce9b AP |
1685 | else |
1686 | printf("<unknown:%d>\n", dev->rwh_policy); | |
ba1b3bc8 AP |
1687 | |
1688 | printf(" Volume ID : %u\n", dev->my_vol_raid_dev_num); | |
cdddbdbc DW |
1689 | } |
1690 | ||
ef5c214e MK |
1691 | static void print_imsm_disk(struct imsm_disk *disk, |
1692 | int index, | |
1693 | __u32 reserved, | |
1694 | unsigned int sector_size) { | |
1f24f035 | 1695 | char str[MAX_RAID_SERIAL_LEN + 1]; |
cdddbdbc DW |
1696 | __u64 sz; |
1697 | ||
0ec1f4e8 | 1698 | if (index < -1 || !disk) |
e9d82038 DW |
1699 | return; |
1700 | ||
cdddbdbc | 1701 | printf("\n"); |
1f24f035 | 1702 | snprintf(str, MAX_RAID_SERIAL_LEN + 1, "%s", disk->serial); |
0ec1f4e8 DW |
1703 | if (index >= 0) |
1704 | printf(" Disk%02d Serial : %s\n", index, str); | |
1705 | else | |
1706 | printf(" Disk Serial : %s\n", str); | |
2432ce9b AP |
1707 | printf(" State :%s%s%s%s\n", is_spare(disk) ? " spare" : "", |
1708 | is_configured(disk) ? " active" : "", | |
1709 | is_failed(disk) ? " failed" : "", | |
1710 | is_journal(disk) ? " journal" : ""); | |
cdddbdbc | 1711 | printf(" Id : %08x\n", __le32_to_cpu(disk->scsi_id)); |
5551b113 | 1712 | sz = total_blocks(disk) - reserved; |
ef5c214e MK |
1713 | printf(" Usable Size : %llu%s\n", |
1714 | (unsigned long long)sz * 512 / sector_size, | |
cdddbdbc DW |
1715 | human_size(sz * 512)); |
1716 | } | |
1717 | ||
de44e46f PB |
1718 | void convert_to_4k_imsm_migr_rec(struct intel_super *super) |
1719 | { | |
1720 | struct migr_record *migr_rec = super->migr_rec; | |
1721 | ||
1722 | migr_rec->blocks_per_unit /= IMSM_4K_DIV; | |
de44e46f PB |
1723 | migr_rec->dest_depth_per_unit /= IMSM_4K_DIV; |
1724 | split_ull((join_u32(migr_rec->post_migr_vol_cap, | |
1725 | migr_rec->post_migr_vol_cap_hi) / IMSM_4K_DIV), | |
1726 | &migr_rec->post_migr_vol_cap, &migr_rec->post_migr_vol_cap_hi); | |
9f421827 PB |
1727 | set_migr_chkp_area_pba(migr_rec, |
1728 | migr_chkp_area_pba(migr_rec) / IMSM_4K_DIV); | |
1729 | set_migr_dest_1st_member_lba(migr_rec, | |
1730 | migr_dest_1st_member_lba(migr_rec) / IMSM_4K_DIV); | |
de44e46f PB |
1731 | } |
1732 | ||
f36a9ecd PB |
1733 | void convert_to_4k_imsm_disk(struct imsm_disk *disk) |
1734 | { | |
1735 | set_total_blocks(disk, (total_blocks(disk)/IMSM_4K_DIV)); | |
1736 | } | |
1737 | ||
1738 | void convert_to_4k(struct intel_super *super) | |
1739 | { | |
1740 | struct imsm_super *mpb = super->anchor; | |
1741 | struct imsm_disk *disk; | |
1742 | int i; | |
e4467bc7 | 1743 | __u32 bbm_log_size = __le32_to_cpu(mpb->bbm_log_size); |
f36a9ecd PB |
1744 | |
1745 | for (i = 0; i < mpb->num_disks ; i++) { | |
1746 | disk = __get_imsm_disk(mpb, i); | |
1747 | /* disk */ | |
1748 | convert_to_4k_imsm_disk(disk); | |
1749 | } | |
1750 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
1751 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
1752 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
1753 | /* dev */ | |
fcc2c9da | 1754 | set_imsm_dev_size(dev, imsm_dev_size(dev)/IMSM_4K_DIV); |
f36a9ecd PB |
1755 | dev->vol.curr_migr_unit /= IMSM_4K_DIV; |
1756 | ||
1757 | /* map0 */ | |
1758 | set_blocks_per_member(map, blocks_per_member(map)/IMSM_4K_DIV); | |
1759 | map->blocks_per_strip /= IMSM_4K_DIV; | |
1760 | set_pba_of_lba0(map, pba_of_lba0(map)/IMSM_4K_DIV); | |
1761 | ||
1762 | if (dev->vol.migr_state) { | |
1763 | /* map1 */ | |
1764 | map = get_imsm_map(dev, MAP_1); | |
1765 | set_blocks_per_member(map, | |
1766 | blocks_per_member(map)/IMSM_4K_DIV); | |
1767 | map->blocks_per_strip /= IMSM_4K_DIV; | |
1768 | set_pba_of_lba0(map, pba_of_lba0(map)/IMSM_4K_DIV); | |
1769 | } | |
1770 | } | |
e4467bc7 TM |
1771 | if (bbm_log_size) { |
1772 | struct bbm_log *log = (void *)mpb + | |
1773 | __le32_to_cpu(mpb->mpb_size) - bbm_log_size; | |
1774 | __u32 i; | |
1775 | ||
1776 | for (i = 0; i < log->entry_count; i++) { | |
1777 | struct bbm_log_entry *entry = | |
1778 | &log->marked_block_entries[i]; | |
1779 | ||
1780 | __u8 count = entry->marked_count + 1; | |
1781 | unsigned long long sector = | |
1782 | __le48_to_cpu(&entry->defective_block_start); | |
1783 | ||
1784 | entry->defective_block_start = | |
1785 | __cpu_to_le48(sector/IMSM_4K_DIV); | |
1786 | entry->marked_count = max(count/IMSM_4K_DIV, 1) - 1; | |
1787 | } | |
1788 | } | |
f36a9ecd PB |
1789 | |
1790 | mpb->check_sum = __gen_imsm_checksum(mpb); | |
1791 | } | |
1792 | ||
520e69e2 AK |
1793 | void examine_migr_rec_imsm(struct intel_super *super) |
1794 | { | |
1795 | struct migr_record *migr_rec = super->migr_rec; | |
1796 | struct imsm_super *mpb = super->anchor; | |
1797 | int i; | |
1798 | ||
1799 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
1800 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
3136abe5 | 1801 | struct imsm_map *map; |
b4ab44d8 | 1802 | int slot = -1; |
3136abe5 | 1803 | |
520e69e2 AK |
1804 | if (is_gen_migration(dev) == 0) |
1805 | continue; | |
1806 | ||
1807 | printf("\nMigration Record Information:"); | |
3136abe5 | 1808 | |
44bfe6df AK |
1809 | /* first map under migration */ |
1810 | map = get_imsm_map(dev, MAP_0); | |
3136abe5 AK |
1811 | if (map) |
1812 | slot = get_imsm_disk_slot(map, super->disks->index); | |
089f9d79 | 1813 | if (map == NULL || slot > 1 || slot < 0) { |
520e69e2 AK |
1814 | printf(" Empty\n "); |
1815 | printf("Examine one of first two disks in array\n"); | |
1816 | break; | |
1817 | } | |
1818 | printf("\n Status : "); | |
1819 | if (__le32_to_cpu(migr_rec->rec_status) == UNIT_SRC_NORMAL) | |
1820 | printf("Normal\n"); | |
1821 | else | |
1822 | printf("Contains Data\n"); | |
9f421827 PB |
1823 | printf(" Current Unit : %llu\n", |
1824 | current_migr_unit(migr_rec)); | |
520e69e2 AK |
1825 | printf(" Family : %u\n", |
1826 | __le32_to_cpu(migr_rec->family_num)); | |
1827 | printf(" Ascending : %u\n", | |
1828 | __le32_to_cpu(migr_rec->ascending_migr)); | |
1829 | printf(" Blocks Per Unit : %u\n", | |
1830 | __le32_to_cpu(migr_rec->blocks_per_unit)); | |
1831 | printf(" Dest. Depth Per Unit : %u\n", | |
1832 | __le32_to_cpu(migr_rec->dest_depth_per_unit)); | |
9f421827 PB |
1833 | printf(" Checkpoint Area pba : %llu\n", |
1834 | migr_chkp_area_pba(migr_rec)); | |
1835 | printf(" First member lba : %llu\n", | |
1836 | migr_dest_1st_member_lba(migr_rec)); | |
1837 | printf(" Total Number of Units : %llu\n", | |
1838 | get_num_migr_units(migr_rec)); | |
1839 | printf(" Size of volume : %llu\n", | |
1840 | join_u32(migr_rec->post_migr_vol_cap, | |
1841 | migr_rec->post_migr_vol_cap_hi)); | |
520e69e2 AK |
1842 | printf(" Record was read from : %u\n", |
1843 | __le32_to_cpu(migr_rec->ckpt_read_disk_num)); | |
1844 | ||
1845 | break; | |
1846 | } | |
1847 | } | |
f36a9ecd | 1848 | |
de44e46f PB |
1849 | void convert_from_4k_imsm_migr_rec(struct intel_super *super) |
1850 | { | |
1851 | struct migr_record *migr_rec = super->migr_rec; | |
1852 | ||
1853 | migr_rec->blocks_per_unit *= IMSM_4K_DIV; | |
de44e46f PB |
1854 | migr_rec->dest_depth_per_unit *= IMSM_4K_DIV; |
1855 | split_ull((join_u32(migr_rec->post_migr_vol_cap, | |
1856 | migr_rec->post_migr_vol_cap_hi) * IMSM_4K_DIV), | |
1857 | &migr_rec->post_migr_vol_cap, | |
1858 | &migr_rec->post_migr_vol_cap_hi); | |
9f421827 PB |
1859 | set_migr_chkp_area_pba(migr_rec, |
1860 | migr_chkp_area_pba(migr_rec) * IMSM_4K_DIV); | |
1861 | set_migr_dest_1st_member_lba(migr_rec, | |
1862 | migr_dest_1st_member_lba(migr_rec) * IMSM_4K_DIV); | |
de44e46f PB |
1863 | } |
1864 | ||
f36a9ecd PB |
1865 | void convert_from_4k(struct intel_super *super) |
1866 | { | |
1867 | struct imsm_super *mpb = super->anchor; | |
1868 | struct imsm_disk *disk; | |
1869 | int i; | |
e4467bc7 | 1870 | __u32 bbm_log_size = __le32_to_cpu(mpb->bbm_log_size); |
f36a9ecd PB |
1871 | |
1872 | for (i = 0; i < mpb->num_disks ; i++) { | |
1873 | disk = __get_imsm_disk(mpb, i); | |
1874 | /* disk */ | |
1875 | set_total_blocks(disk, (total_blocks(disk)*IMSM_4K_DIV)); | |
1876 | } | |
1877 | ||
1878 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
1879 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
1880 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
1881 | /* dev */ | |
fcc2c9da | 1882 | set_imsm_dev_size(dev, imsm_dev_size(dev)*IMSM_4K_DIV); |
f36a9ecd PB |
1883 | dev->vol.curr_migr_unit *= IMSM_4K_DIV; |
1884 | ||
1885 | /* map0 */ | |
1886 | set_blocks_per_member(map, blocks_per_member(map)*IMSM_4K_DIV); | |
1887 | map->blocks_per_strip *= IMSM_4K_DIV; | |
1888 | set_pba_of_lba0(map, pba_of_lba0(map)*IMSM_4K_DIV); | |
1889 | ||
1890 | if (dev->vol.migr_state) { | |
1891 | /* map1 */ | |
1892 | map = get_imsm_map(dev, MAP_1); | |
1893 | set_blocks_per_member(map, | |
1894 | blocks_per_member(map)*IMSM_4K_DIV); | |
1895 | map->blocks_per_strip *= IMSM_4K_DIV; | |
1896 | set_pba_of_lba0(map, pba_of_lba0(map)*IMSM_4K_DIV); | |
1897 | } | |
1898 | } | |
e4467bc7 TM |
1899 | if (bbm_log_size) { |
1900 | struct bbm_log *log = (void *)mpb + | |
1901 | __le32_to_cpu(mpb->mpb_size) - bbm_log_size; | |
1902 | __u32 i; | |
1903 | ||
1904 | for (i = 0; i < log->entry_count; i++) { | |
1905 | struct bbm_log_entry *entry = | |
1906 | &log->marked_block_entries[i]; | |
1907 | ||
1908 | __u8 count = entry->marked_count + 1; | |
1909 | unsigned long long sector = | |
1910 | __le48_to_cpu(&entry->defective_block_start); | |
1911 | ||
1912 | entry->defective_block_start = | |
1913 | __cpu_to_le48(sector*IMSM_4K_DIV); | |
1914 | entry->marked_count = count*IMSM_4K_DIV - 1; | |
1915 | } | |
1916 | } | |
f36a9ecd PB |
1917 | |
1918 | mpb->check_sum = __gen_imsm_checksum(mpb); | |
1919 | } | |
1920 | ||
19482bcc AK |
1921 | /******************************************************************************* |
1922 | * function: imsm_check_attributes | |
1923 | * Description: Function checks if features represented by attributes flags | |
1011e834 | 1924 | * are supported by mdadm. |
19482bcc AK |
1925 | * Parameters: |
1926 | * attributes - Attributes read from metadata | |
1927 | * Returns: | |
1011e834 N |
1928 | * 0 - passed attributes contains unsupported features flags |
1929 | * 1 - all features are supported | |
19482bcc AK |
1930 | ******************************************************************************/ |
1931 | static int imsm_check_attributes(__u32 attributes) | |
1932 | { | |
1933 | int ret_val = 1; | |
418f9b36 N |
1934 | __u32 not_supported = MPB_ATTRIB_SUPPORTED^0xffffffff; |
1935 | ||
1936 | not_supported &= ~MPB_ATTRIB_IGNORED; | |
19482bcc AK |
1937 | |
1938 | not_supported &= attributes; | |
1939 | if (not_supported) { | |
e7b84f9d | 1940 | pr_err("(IMSM): Unsupported attributes : %x\n", |
418f9b36 | 1941 | (unsigned)__le32_to_cpu(not_supported)); |
19482bcc AK |
1942 | if (not_supported & MPB_ATTRIB_CHECKSUM_VERIFY) { |
1943 | dprintf("\t\tMPB_ATTRIB_CHECKSUM_VERIFY \n"); | |
1944 | not_supported ^= MPB_ATTRIB_CHECKSUM_VERIFY; | |
1945 | } | |
1946 | if (not_supported & MPB_ATTRIB_2TB) { | |
1947 | dprintf("\t\tMPB_ATTRIB_2TB\n"); | |
1948 | not_supported ^= MPB_ATTRIB_2TB; | |
1949 | } | |
1950 | if (not_supported & MPB_ATTRIB_RAID0) { | |
1951 | dprintf("\t\tMPB_ATTRIB_RAID0\n"); | |
1952 | not_supported ^= MPB_ATTRIB_RAID0; | |
1953 | } | |
1954 | if (not_supported & MPB_ATTRIB_RAID1) { | |
1955 | dprintf("\t\tMPB_ATTRIB_RAID1\n"); | |
1956 | not_supported ^= MPB_ATTRIB_RAID1; | |
1957 | } | |
1958 | if (not_supported & MPB_ATTRIB_RAID10) { | |
1959 | dprintf("\t\tMPB_ATTRIB_RAID10\n"); | |
1960 | not_supported ^= MPB_ATTRIB_RAID10; | |
1961 | } | |
1962 | if (not_supported & MPB_ATTRIB_RAID1E) { | |
1963 | dprintf("\t\tMPB_ATTRIB_RAID1E\n"); | |
1964 | not_supported ^= MPB_ATTRIB_RAID1E; | |
1965 | } | |
1966 | if (not_supported & MPB_ATTRIB_RAID5) { | |
1967 | dprintf("\t\tMPB_ATTRIB_RAID5\n"); | |
1968 | not_supported ^= MPB_ATTRIB_RAID5; | |
1969 | } | |
1970 | if (not_supported & MPB_ATTRIB_RAIDCNG) { | |
1971 | dprintf("\t\tMPB_ATTRIB_RAIDCNG\n"); | |
1972 | not_supported ^= MPB_ATTRIB_RAIDCNG; | |
1973 | } | |
1974 | if (not_supported & MPB_ATTRIB_BBM) { | |
1975 | dprintf("\t\tMPB_ATTRIB_BBM\n"); | |
1976 | not_supported ^= MPB_ATTRIB_BBM; | |
1977 | } | |
1978 | if (not_supported & MPB_ATTRIB_CHECKSUM_VERIFY) { | |
1979 | dprintf("\t\tMPB_ATTRIB_CHECKSUM_VERIFY (== MPB_ATTRIB_LEGACY)\n"); | |
1980 | not_supported ^= MPB_ATTRIB_CHECKSUM_VERIFY; | |
1981 | } | |
1982 | if (not_supported & MPB_ATTRIB_EXP_STRIPE_SIZE) { | |
1983 | dprintf("\t\tMPB_ATTRIB_EXP_STRIP_SIZE\n"); | |
1984 | not_supported ^= MPB_ATTRIB_EXP_STRIPE_SIZE; | |
1985 | } | |
1986 | if (not_supported & MPB_ATTRIB_2TB_DISK) { | |
1987 | dprintf("\t\tMPB_ATTRIB_2TB_DISK\n"); | |
1988 | not_supported ^= MPB_ATTRIB_2TB_DISK; | |
1989 | } | |
1990 | if (not_supported & MPB_ATTRIB_NEVER_USE2) { | |
1991 | dprintf("\t\tMPB_ATTRIB_NEVER_USE2\n"); | |
1992 | not_supported ^= MPB_ATTRIB_NEVER_USE2; | |
1993 | } | |
1994 | if (not_supported & MPB_ATTRIB_NEVER_USE) { | |
1995 | dprintf("\t\tMPB_ATTRIB_NEVER_USE\n"); | |
1996 | not_supported ^= MPB_ATTRIB_NEVER_USE; | |
1997 | } | |
1998 | ||
1999 | if (not_supported) | |
1ade5cc1 | 2000 | dprintf("(IMSM): Unknown attributes : %x\n", not_supported); |
19482bcc AK |
2001 | |
2002 | ret_val = 0; | |
2003 | } | |
2004 | ||
2005 | return ret_val; | |
2006 | } | |
2007 | ||
a5d85af7 | 2008 | static void getinfo_super_imsm(struct supertype *st, struct mdinfo *info, char *map); |
44470971 | 2009 | |
cdddbdbc DW |
2010 | static void examine_super_imsm(struct supertype *st, char *homehost) |
2011 | { | |
2012 | struct intel_super *super = st->sb; | |
949c47a0 | 2013 | struct imsm_super *mpb = super->anchor; |
cdddbdbc DW |
2014 | char str[MAX_SIGNATURE_LENGTH]; |
2015 | int i; | |
27fd6274 DW |
2016 | struct mdinfo info; |
2017 | char nbuf[64]; | |
cdddbdbc | 2018 | __u32 sum; |
14e8215b | 2019 | __u32 reserved = imsm_reserved_sectors(super, super->disks); |
94827db3 | 2020 | struct dl *dl; |
e48aed3c | 2021 | time_t creation_time; |
27fd6274 | 2022 | |
618f4e6d XN |
2023 | strncpy(str, (char *)mpb->sig, MPB_SIG_LEN); |
2024 | str[MPB_SIG_LEN-1] = '\0'; | |
cdddbdbc | 2025 | printf(" Magic : %s\n", str); |
cdddbdbc | 2026 | printf(" Version : %s\n", get_imsm_version(mpb)); |
148acb7b | 2027 | printf(" Orig Family : %08x\n", __le32_to_cpu(mpb->orig_family_num)); |
cdddbdbc DW |
2028 | printf(" Family : %08x\n", __le32_to_cpu(mpb->family_num)); |
2029 | printf(" Generation : %08x\n", __le32_to_cpu(mpb->generation_num)); | |
e48aed3c AP |
2030 | creation_time = __le64_to_cpu(mpb->creation_time); |
2031 | printf(" Creation Time : %.24s\n", | |
2032 | creation_time ? ctime(&creation_time) : "Unknown"); | |
19482bcc AK |
2033 | printf(" Attributes : "); |
2034 | if (imsm_check_attributes(mpb->attributes)) | |
2035 | printf("All supported\n"); | |
2036 | else | |
2037 | printf("not supported\n"); | |
a5d85af7 | 2038 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 2039 | fname_from_uuid(st, &info, nbuf, ':'); |
27fd6274 | 2040 | printf(" UUID : %s\n", nbuf + 5); |
cdddbdbc DW |
2041 | sum = __le32_to_cpu(mpb->check_sum); |
2042 | printf(" Checksum : %08x %s\n", sum, | |
949c47a0 | 2043 | __gen_imsm_checksum(mpb) == sum ? "correct" : "incorrect"); |
f36a9ecd | 2044 | printf(" MPB Sectors : %d\n", mpb_sectors(mpb, super->sector_size)); |
cdddbdbc DW |
2045 | printf(" Disks : %d\n", mpb->num_disks); |
2046 | printf(" RAID Devices : %d\n", mpb->num_raid_devs); | |
ef5c214e MK |
2047 | print_imsm_disk(__get_imsm_disk(mpb, super->disks->index), |
2048 | super->disks->index, reserved, super->sector_size); | |
8d67477f | 2049 | if (get_imsm_bbm_log_size(super->bbm_log)) { |
604b746f JD |
2050 | struct bbm_log *log = super->bbm_log; |
2051 | ||
2052 | printf("\n"); | |
2053 | printf("Bad Block Management Log:\n"); | |
2054 | printf(" Log Size : %d\n", __le32_to_cpu(mpb->bbm_log_size)); | |
2055 | printf(" Signature : %x\n", __le32_to_cpu(log->signature)); | |
2056 | printf(" Entry Count : %d\n", __le32_to_cpu(log->entry_count)); | |
604b746f | 2057 | } |
44470971 DW |
2058 | for (i = 0; i < mpb->num_raid_devs; i++) { |
2059 | struct mdinfo info; | |
2060 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
2061 | ||
2062 | super->current_vol = i; | |
a5d85af7 | 2063 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 2064 | fname_from_uuid(st, &info, nbuf, ':'); |
c47b0ff6 | 2065 | print_imsm_dev(super, dev, nbuf + 5, super->disks->index); |
44470971 | 2066 | } |
cdddbdbc DW |
2067 | for (i = 0; i < mpb->num_disks; i++) { |
2068 | if (i == super->disks->index) | |
2069 | continue; | |
ef5c214e MK |
2070 | print_imsm_disk(__get_imsm_disk(mpb, i), i, reserved, |
2071 | super->sector_size); | |
cdddbdbc | 2072 | } |
94827db3 | 2073 | |
0ec1f4e8 DW |
2074 | for (dl = super->disks; dl; dl = dl->next) |
2075 | if (dl->index == -1) | |
ef5c214e MK |
2076 | print_imsm_disk(&dl->disk, -1, reserved, |
2077 | super->sector_size); | |
520e69e2 AK |
2078 | |
2079 | examine_migr_rec_imsm(super); | |
cdddbdbc DW |
2080 | } |
2081 | ||
061f2c6a | 2082 | static void brief_examine_super_imsm(struct supertype *st, int verbose) |
cdddbdbc | 2083 | { |
27fd6274 | 2084 | /* We just write a generic IMSM ARRAY entry */ |
ff54de6e N |
2085 | struct mdinfo info; |
2086 | char nbuf[64]; | |
1e7bc0ed | 2087 | struct intel_super *super = st->sb; |
1e7bc0ed | 2088 | |
0d5a423f DW |
2089 | if (!super->anchor->num_raid_devs) { |
2090 | printf("ARRAY metadata=imsm\n"); | |
1e7bc0ed | 2091 | return; |
0d5a423f | 2092 | } |
ff54de6e | 2093 | |
a5d85af7 | 2094 | getinfo_super_imsm(st, &info, NULL); |
4737ae25 N |
2095 | fname_from_uuid(st, &info, nbuf, ':'); |
2096 | printf("ARRAY metadata=imsm UUID=%s\n", nbuf + 5); | |
2097 | } | |
2098 | ||
2099 | static void brief_examine_subarrays_imsm(struct supertype *st, int verbose) | |
2100 | { | |
2101 | /* We just write a generic IMSM ARRAY entry */ | |
2102 | struct mdinfo info; | |
2103 | char nbuf[64]; | |
2104 | char nbuf1[64]; | |
2105 | struct intel_super *super = st->sb; | |
2106 | int i; | |
2107 | ||
2108 | if (!super->anchor->num_raid_devs) | |
2109 | return; | |
2110 | ||
a5d85af7 | 2111 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 2112 | fname_from_uuid(st, &info, nbuf, ':'); |
1e7bc0ed DW |
2113 | for (i = 0; i < super->anchor->num_raid_devs; i++) { |
2114 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
2115 | ||
2116 | super->current_vol = i; | |
a5d85af7 | 2117 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 2118 | fname_from_uuid(st, &info, nbuf1, ':'); |
1124b3cf | 2119 | printf("ARRAY /dev/md/%.16s container=%s member=%d UUID=%s\n", |
cf8de691 | 2120 | dev->volume, nbuf + 5, i, nbuf1 + 5); |
1e7bc0ed | 2121 | } |
cdddbdbc DW |
2122 | } |
2123 | ||
9d84c8ea DW |
2124 | static void export_examine_super_imsm(struct supertype *st) |
2125 | { | |
2126 | struct intel_super *super = st->sb; | |
2127 | struct imsm_super *mpb = super->anchor; | |
2128 | struct mdinfo info; | |
2129 | char nbuf[64]; | |
2130 | ||
a5d85af7 | 2131 | getinfo_super_imsm(st, &info, NULL); |
9d84c8ea DW |
2132 | fname_from_uuid(st, &info, nbuf, ':'); |
2133 | printf("MD_METADATA=imsm\n"); | |
2134 | printf("MD_LEVEL=container\n"); | |
2135 | printf("MD_UUID=%s\n", nbuf+5); | |
2136 | printf("MD_DEVICES=%u\n", mpb->num_disks); | |
e48aed3c | 2137 | printf("MD_CREATION_TIME=%llu\n", __le64_to_cpu(mpb->creation_time)); |
9d84c8ea DW |
2138 | } |
2139 | ||
b771faef BK |
2140 | static void detail_super_imsm(struct supertype *st, char *homehost, |
2141 | char *subarray) | |
cdddbdbc | 2142 | { |
3ebe00a1 DW |
2143 | struct mdinfo info; |
2144 | char nbuf[64]; | |
b771faef BK |
2145 | struct intel_super *super = st->sb; |
2146 | int temp_vol = super->current_vol; | |
2147 | ||
2148 | if (subarray) | |
2149 | super->current_vol = strtoul(subarray, NULL, 10); | |
3ebe00a1 | 2150 | |
a5d85af7 | 2151 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 2152 | fname_from_uuid(st, &info, nbuf, ':'); |
65884368 | 2153 | printf("\n UUID : %s\n", nbuf + 5); |
b771faef BK |
2154 | |
2155 | super->current_vol = temp_vol; | |
cdddbdbc DW |
2156 | } |
2157 | ||
b771faef | 2158 | static void brief_detail_super_imsm(struct supertype *st, char *subarray) |
cdddbdbc | 2159 | { |
ff54de6e N |
2160 | struct mdinfo info; |
2161 | char nbuf[64]; | |
b771faef BK |
2162 | struct intel_super *super = st->sb; |
2163 | int temp_vol = super->current_vol; | |
2164 | ||
2165 | if (subarray) | |
2166 | super->current_vol = strtoul(subarray, NULL, 10); | |
2167 | ||
a5d85af7 | 2168 | getinfo_super_imsm(st, &info, NULL); |
ae2bfd4e | 2169 | fname_from_uuid(st, &info, nbuf, ':'); |
ff54de6e | 2170 | printf(" UUID=%s", nbuf + 5); |
b771faef BK |
2171 | |
2172 | super->current_vol = temp_vol; | |
cdddbdbc | 2173 | } |
d665cc31 | 2174 | |
6da53c0e BK |
2175 | static int imsm_read_serial(int fd, char *devname, __u8 *serial, |
2176 | size_t serial_buf_len); | |
d665cc31 DW |
2177 | static void fd2devname(int fd, char *name); |
2178 | ||
120dc887 | 2179 | static int ahci_enumerate_ports(const char *hba_path, int port_count, int host_base, int verbose) |
d665cc31 | 2180 | { |
120dc887 LM |
2181 | /* dump an unsorted list of devices attached to AHCI Intel storage |
2182 | * controller, as well as non-connected ports | |
d665cc31 DW |
2183 | */ |
2184 | int hba_len = strlen(hba_path) + 1; | |
2185 | struct dirent *ent; | |
2186 | DIR *dir; | |
2187 | char *path = NULL; | |
2188 | int err = 0; | |
2189 | unsigned long port_mask = (1 << port_count) - 1; | |
2190 | ||
f21e18ca | 2191 | if (port_count > (int)sizeof(port_mask) * 8) { |
ba728be7 | 2192 | if (verbose > 0) |
e7b84f9d | 2193 | pr_err("port_count %d out of range\n", port_count); |
d665cc31 DW |
2194 | return 2; |
2195 | } | |
2196 | ||
2197 | /* scroll through /sys/dev/block looking for devices attached to | |
2198 | * this hba | |
2199 | */ | |
2200 | dir = opendir("/sys/dev/block"); | |
1a6dd6b9 PB |
2201 | if (!dir) |
2202 | return 1; | |
2203 | ||
2204 | for (ent = readdir(dir); ent; ent = readdir(dir)) { | |
d665cc31 DW |
2205 | int fd; |
2206 | char model[64]; | |
2207 | char vendor[64]; | |
2208 | char buf[1024]; | |
2209 | int major, minor; | |
2210 | char *device; | |
2211 | char *c; | |
2212 | int port; | |
2213 | int type; | |
2214 | ||
2215 | if (sscanf(ent->d_name, "%d:%d", &major, &minor) != 2) | |
2216 | continue; | |
2217 | path = devt_to_devpath(makedev(major, minor)); | |
2218 | if (!path) | |
2219 | continue; | |
2220 | if (!path_attached_to_hba(path, hba_path)) { | |
2221 | free(path); | |
2222 | path = NULL; | |
2223 | continue; | |
2224 | } | |
2225 | ||
2226 | /* retrieve the scsi device type */ | |
2227 | if (asprintf(&device, "/sys/dev/block/%d:%d/device/xxxxxxx", major, minor) < 0) { | |
ba728be7 | 2228 | if (verbose > 0) |
e7b84f9d | 2229 | pr_err("failed to allocate 'device'\n"); |
d665cc31 DW |
2230 | err = 2; |
2231 | break; | |
2232 | } | |
2233 | sprintf(device, "/sys/dev/block/%d:%d/device/type", major, minor); | |
193b6c0b | 2234 | if (load_sys(device, buf, sizeof(buf)) != 0) { |
ba728be7 | 2235 | if (verbose > 0) |
e7b84f9d | 2236 | pr_err("failed to read device type for %s\n", |
d665cc31 DW |
2237 | path); |
2238 | err = 2; | |
2239 | free(device); | |
2240 | break; | |
2241 | } | |
2242 | type = strtoul(buf, NULL, 10); | |
2243 | ||
2244 | /* if it's not a disk print the vendor and model */ | |
2245 | if (!(type == 0 || type == 7 || type == 14)) { | |
2246 | vendor[0] = '\0'; | |
2247 | model[0] = '\0'; | |
2248 | sprintf(device, "/sys/dev/block/%d:%d/device/vendor", major, minor); | |
193b6c0b | 2249 | if (load_sys(device, buf, sizeof(buf)) == 0) { |
d665cc31 DW |
2250 | strncpy(vendor, buf, sizeof(vendor)); |
2251 | vendor[sizeof(vendor) - 1] = '\0'; | |
2252 | c = (char *) &vendor[sizeof(vendor) - 1]; | |
2253 | while (isspace(*c) || *c == '\0') | |
2254 | *c-- = '\0'; | |
2255 | ||
2256 | } | |
2257 | sprintf(device, "/sys/dev/block/%d:%d/device/model", major, minor); | |
193b6c0b | 2258 | if (load_sys(device, buf, sizeof(buf)) == 0) { |
d665cc31 DW |
2259 | strncpy(model, buf, sizeof(model)); |
2260 | model[sizeof(model) - 1] = '\0'; | |
2261 | c = (char *) &model[sizeof(model) - 1]; | |
2262 | while (isspace(*c) || *c == '\0') | |
2263 | *c-- = '\0'; | |
2264 | } | |
2265 | ||
2266 | if (vendor[0] && model[0]) | |
2267 | sprintf(buf, "%.64s %.64s", vendor, model); | |
2268 | else | |
2269 | switch (type) { /* numbers from hald/linux/device.c */ | |
2270 | case 1: sprintf(buf, "tape"); break; | |
2271 | case 2: sprintf(buf, "printer"); break; | |
2272 | case 3: sprintf(buf, "processor"); break; | |
2273 | case 4: | |
2274 | case 5: sprintf(buf, "cdrom"); break; | |
2275 | case 6: sprintf(buf, "scanner"); break; | |
2276 | case 8: sprintf(buf, "media_changer"); break; | |
2277 | case 9: sprintf(buf, "comm"); break; | |
2278 | case 12: sprintf(buf, "raid"); break; | |
2279 | default: sprintf(buf, "unknown"); | |
2280 | } | |
2281 | } else | |
2282 | buf[0] = '\0'; | |
2283 | free(device); | |
2284 | ||
2285 | /* chop device path to 'host%d' and calculate the port number */ | |
2286 | c = strchr(&path[hba_len], '/'); | |
4e5e717d | 2287 | if (!c) { |
ba728be7 | 2288 | if (verbose > 0) |
e7b84f9d | 2289 | pr_err("%s - invalid path name\n", path + hba_len); |
4e5e717d AW |
2290 | err = 2; |
2291 | break; | |
2292 | } | |
d665cc31 | 2293 | *c = '\0'; |
0858eccf AP |
2294 | if ((sscanf(&path[hba_len], "ata%d", &port) == 1) || |
2295 | ((sscanf(&path[hba_len], "host%d", &port) == 1))) | |
d665cc31 DW |
2296 | port -= host_base; |
2297 | else { | |
ba728be7 | 2298 | if (verbose > 0) { |
d665cc31 | 2299 | *c = '/'; /* repair the full string */ |
e7b84f9d | 2300 | pr_err("failed to determine port number for %s\n", |
d665cc31 DW |
2301 | path); |
2302 | } | |
2303 | err = 2; | |
2304 | break; | |
2305 | } | |
2306 | ||
2307 | /* mark this port as used */ | |
2308 | port_mask &= ~(1 << port); | |
2309 | ||
2310 | /* print out the device information */ | |
2311 | if (buf[0]) { | |
2312 | printf(" Port%d : - non-disk device (%s) -\n", port, buf); | |
2313 | continue; | |
2314 | } | |
2315 | ||
2316 | fd = dev_open(ent->d_name, O_RDONLY); | |
2317 | if (fd < 0) | |
2318 | printf(" Port%d : - disk info unavailable -\n", port); | |
2319 | else { | |
2320 | fd2devname(fd, buf); | |
2321 | printf(" Port%d : %s", port, buf); | |
6da53c0e BK |
2322 | if (imsm_read_serial(fd, NULL, (__u8 *)buf, |
2323 | sizeof(buf)) == 0) | |
2324 | printf(" (%s)\n", buf); | |
d665cc31 | 2325 | else |
664d5325 | 2326 | printf(" ()\n"); |
4dab422a | 2327 | close(fd); |
d665cc31 | 2328 | } |
d665cc31 DW |
2329 | free(path); |
2330 | path = NULL; | |
2331 | } | |
2332 | if (path) | |
2333 | free(path); | |
2334 | if (dir) | |
2335 | closedir(dir); | |
2336 | if (err == 0) { | |
2337 | int i; | |
2338 | ||
2339 | for (i = 0; i < port_count; i++) | |
2340 | if (port_mask & (1 << i)) | |
2341 | printf(" Port%d : - no device attached -\n", i); | |
2342 | } | |
2343 | ||
2344 | return err; | |
2345 | } | |
2346 | ||
6da53c0e | 2347 | static int print_nvme_info(struct sys_dev *hba) |
60f0f54d | 2348 | { |
6da53c0e | 2349 | char buf[1024]; |
60f0f54d PB |
2350 | struct dirent *ent; |
2351 | DIR *dir; | |
6da53c0e BK |
2352 | char *rp; |
2353 | int fd; | |
60f0f54d | 2354 | |
6da53c0e | 2355 | dir = opendir("/sys/block/"); |
b9135011 | 2356 | if (!dir) |
b5eece69 | 2357 | return 1; |
b9135011 JS |
2358 | |
2359 | for (ent = readdir(dir); ent; ent = readdir(dir)) { | |
6da53c0e BK |
2360 | if (strstr(ent->d_name, "nvme")) { |
2361 | sprintf(buf, "/sys/block/%s", ent->d_name); | |
2362 | rp = realpath(buf, NULL); | |
2363 | if (!rp) | |
2364 | continue; | |
2365 | if (path_attached_to_hba(rp, hba->path)) { | |
2366 | fd = open_dev(ent->d_name); | |
2367 | if (fd < 0) { | |
2368 | free(rp); | |
2369 | continue; | |
2370 | } | |
60f0f54d | 2371 | |
6da53c0e BK |
2372 | fd2devname(fd, buf); |
2373 | if (hba->type == SYS_DEV_VMD) | |
2374 | printf(" NVMe under VMD : %s", buf); | |
2375 | else if (hba->type == SYS_DEV_NVME) | |
2376 | printf(" NVMe Device : %s", buf); | |
2377 | if (!imsm_read_serial(fd, NULL, (__u8 *)buf, | |
2378 | sizeof(buf))) | |
2379 | printf(" (%s)\n", buf); | |
2380 | else | |
2381 | printf("()\n"); | |
2382 | close(fd); | |
2383 | } | |
2384 | free(rp); | |
60f0f54d | 2385 | } |
60f0f54d PB |
2386 | } |
2387 | ||
b9135011 | 2388 | closedir(dir); |
b5eece69 | 2389 | return 0; |
60f0f54d PB |
2390 | } |
2391 | ||
120dc887 LM |
2392 | static void print_found_intel_controllers(struct sys_dev *elem) |
2393 | { | |
2394 | for (; elem; elem = elem->next) { | |
e7b84f9d | 2395 | pr_err("found Intel(R) "); |
120dc887 LM |
2396 | if (elem->type == SYS_DEV_SATA) |
2397 | fprintf(stderr, "SATA "); | |
155cbb4c LM |
2398 | else if (elem->type == SYS_DEV_SAS) |
2399 | fprintf(stderr, "SAS "); | |
0858eccf AP |
2400 | else if (elem->type == SYS_DEV_NVME) |
2401 | fprintf(stderr, "NVMe "); | |
60f0f54d PB |
2402 | |
2403 | if (elem->type == SYS_DEV_VMD) | |
2404 | fprintf(stderr, "VMD domain"); | |
2405 | else | |
2406 | fprintf(stderr, "RAID controller"); | |
2407 | ||
120dc887 LM |
2408 | if (elem->pci_id) |
2409 | fprintf(stderr, " at %s", elem->pci_id); | |
2410 | fprintf(stderr, ".\n"); | |
2411 | } | |
2412 | fflush(stderr); | |
2413 | } | |
2414 | ||
120dc887 LM |
2415 | static int ahci_get_port_count(const char *hba_path, int *port_count) |
2416 | { | |
2417 | struct dirent *ent; | |
2418 | DIR *dir; | |
2419 | int host_base = -1; | |
2420 | ||
2421 | *port_count = 0; | |
2422 | if ((dir = opendir(hba_path)) == NULL) | |
2423 | return -1; | |
2424 | ||
2425 | for (ent = readdir(dir); ent; ent = readdir(dir)) { | |
2426 | int host; | |
2427 | ||
0858eccf AP |
2428 | if ((sscanf(ent->d_name, "ata%d", &host) != 1) && |
2429 | ((sscanf(ent->d_name, "host%d", &host) != 1))) | |
120dc887 LM |
2430 | continue; |
2431 | if (*port_count == 0) | |
2432 | host_base = host; | |
2433 | else if (host < host_base) | |
2434 | host_base = host; | |
2435 | ||
2436 | if (host + 1 > *port_count + host_base) | |
2437 | *port_count = host + 1 - host_base; | |
2438 | } | |
2439 | closedir(dir); | |
2440 | return host_base; | |
2441 | } | |
2442 | ||
a891a3c2 LM |
2443 | static void print_imsm_capability(const struct imsm_orom *orom) |
2444 | { | |
0858eccf AP |
2445 | printf(" Platform : Intel(R) "); |
2446 | if (orom->capabilities == 0 && orom->driver_features == 0) | |
2447 | printf("Matrix Storage Manager\n"); | |
ab0c6bb9 AP |
2448 | else if (imsm_orom_is_enterprise(orom) && orom->major_ver >= 6) |
2449 | printf("Virtual RAID on CPU\n"); | |
0858eccf AP |
2450 | else |
2451 | printf("Rapid Storage Technology%s\n", | |
2452 | imsm_orom_is_enterprise(orom) ? " enterprise" : ""); | |
2453 | if (orom->major_ver || orom->minor_ver || orom->hotfix_ver || orom->build) | |
2454 | printf(" Version : %d.%d.%d.%d\n", orom->major_ver, | |
2455 | orom->minor_ver, orom->hotfix_ver, orom->build); | |
a891a3c2 LM |
2456 | printf(" RAID Levels :%s%s%s%s%s\n", |
2457 | imsm_orom_has_raid0(orom) ? " raid0" : "", | |
2458 | imsm_orom_has_raid1(orom) ? " raid1" : "", | |
2459 | imsm_orom_has_raid1e(orom) ? " raid1e" : "", | |
2460 | imsm_orom_has_raid10(orom) ? " raid10" : "", | |
2461 | imsm_orom_has_raid5(orom) ? " raid5" : ""); | |
2462 | printf(" Chunk Sizes :%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", | |
2463 | imsm_orom_has_chunk(orom, 2) ? " 2k" : "", | |
2464 | imsm_orom_has_chunk(orom, 4) ? " 4k" : "", | |
2465 | imsm_orom_has_chunk(orom, 8) ? " 8k" : "", | |
2466 | imsm_orom_has_chunk(orom, 16) ? " 16k" : "", | |
2467 | imsm_orom_has_chunk(orom, 32) ? " 32k" : "", | |
2468 | imsm_orom_has_chunk(orom, 64) ? " 64k" : "", | |
2469 | imsm_orom_has_chunk(orom, 128) ? " 128k" : "", | |
2470 | imsm_orom_has_chunk(orom, 256) ? " 256k" : "", | |
2471 | imsm_orom_has_chunk(orom, 512) ? " 512k" : "", | |
2472 | imsm_orom_has_chunk(orom, 1024*1) ? " 1M" : "", | |
2473 | imsm_orom_has_chunk(orom, 1024*2) ? " 2M" : "", | |
2474 | imsm_orom_has_chunk(orom, 1024*4) ? " 4M" : "", | |
2475 | imsm_orom_has_chunk(orom, 1024*8) ? " 8M" : "", | |
2476 | imsm_orom_has_chunk(orom, 1024*16) ? " 16M" : "", | |
2477 | imsm_orom_has_chunk(orom, 1024*32) ? " 32M" : "", | |
2478 | imsm_orom_has_chunk(orom, 1024*64) ? " 64M" : ""); | |
29cd0821 CA |
2479 | printf(" 2TB volumes :%s supported\n", |
2480 | (orom->attr & IMSM_OROM_ATTR_2TB)?"":" not"); | |
2481 | printf(" 2TB disks :%s supported\n", | |
2482 | (orom->attr & IMSM_OROM_ATTR_2TB_DISK)?"":" not"); | |
0e7f69a8 | 2483 | printf(" Max Disks : %d\n", orom->tds); |
0858eccf AP |
2484 | printf(" Max Volumes : %d per array, %d per %s\n", |
2485 | orom->vpa, orom->vphba, | |
2486 | imsm_orom_is_nvme(orom) ? "platform" : "controller"); | |
a891a3c2 LM |
2487 | return; |
2488 | } | |
2489 | ||
e50cf220 MN |
2490 | static void print_imsm_capability_export(const struct imsm_orom *orom) |
2491 | { | |
2492 | printf("MD_FIRMWARE_TYPE=imsm\n"); | |
0858eccf AP |
2493 | if (orom->major_ver || orom->minor_ver || orom->hotfix_ver || orom->build) |
2494 | printf("IMSM_VERSION=%d.%d.%d.%d\n", orom->major_ver, orom->minor_ver, | |
2495 | orom->hotfix_ver, orom->build); | |
e50cf220 MN |
2496 | printf("IMSM_SUPPORTED_RAID_LEVELS=%s%s%s%s%s\n", |
2497 | imsm_orom_has_raid0(orom) ? "raid0 " : "", | |
2498 | imsm_orom_has_raid1(orom) ? "raid1 " : "", | |
2499 | imsm_orom_has_raid1e(orom) ? "raid1e " : "", | |
2500 | imsm_orom_has_raid5(orom) ? "raid10 " : "", | |
2501 | imsm_orom_has_raid10(orom) ? "raid5 " : ""); | |
2502 | printf("IMSM_SUPPORTED_CHUNK_SIZES=%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", | |
2503 | imsm_orom_has_chunk(orom, 2) ? "2k " : "", | |
2504 | imsm_orom_has_chunk(orom, 4) ? "4k " : "", | |
2505 | imsm_orom_has_chunk(orom, 8) ? "8k " : "", | |
2506 | imsm_orom_has_chunk(orom, 16) ? "16k " : "", | |
2507 | imsm_orom_has_chunk(orom, 32) ? "32k " : "", | |
2508 | imsm_orom_has_chunk(orom, 64) ? "64k " : "", | |
2509 | imsm_orom_has_chunk(orom, 128) ? "128k " : "", | |
2510 | imsm_orom_has_chunk(orom, 256) ? "256k " : "", | |
2511 | imsm_orom_has_chunk(orom, 512) ? "512k " : "", | |
2512 | imsm_orom_has_chunk(orom, 1024*1) ? "1M " : "", | |
2513 | imsm_orom_has_chunk(orom, 1024*2) ? "2M " : "", | |
2514 | imsm_orom_has_chunk(orom, 1024*4) ? "4M " : "", | |
2515 | imsm_orom_has_chunk(orom, 1024*8) ? "8M " : "", | |
2516 | imsm_orom_has_chunk(orom, 1024*16) ? "16M " : "", | |
2517 | imsm_orom_has_chunk(orom, 1024*32) ? "32M " : "", | |
2518 | imsm_orom_has_chunk(orom, 1024*64) ? "64M " : ""); | |
2519 | printf("IMSM_2TB_VOLUMES=%s\n",(orom->attr & IMSM_OROM_ATTR_2TB) ? "yes" : "no"); | |
2520 | printf("IMSM_2TB_DISKS=%s\n",(orom->attr & IMSM_OROM_ATTR_2TB_DISK) ? "yes" : "no"); | |
2521 | printf("IMSM_MAX_DISKS=%d\n",orom->tds); | |
2522 | printf("IMSM_MAX_VOLUMES_PER_ARRAY=%d\n",orom->vpa); | |
2523 | printf("IMSM_MAX_VOLUMES_PER_CONTROLLER=%d\n",orom->vphba); | |
2524 | } | |
2525 | ||
9eafa1de | 2526 | static int detail_platform_imsm(int verbose, int enumerate_only, char *controller_path) |
d665cc31 DW |
2527 | { |
2528 | /* There are two components to imsm platform support, the ahci SATA | |
2529 | * controller and the option-rom. To find the SATA controller we | |
2530 | * simply look in /sys/bus/pci/drivers/ahci to see if an ahci | |
2531 | * controller with the Intel vendor id is present. This approach | |
2532 | * allows mdadm to leverage the kernel's ahci detection logic, with the | |
2533 | * caveat that if ahci.ko is not loaded mdadm will not be able to | |
2534 | * detect platform raid capabilities. The option-rom resides in a | |
2535 | * platform "Adapter ROM". We scan for its signature to retrieve the | |
2536 | * platform capabilities. If raid support is disabled in the BIOS the | |
2537 | * option-rom capability structure will not be available. | |
2538 | */ | |
d665cc31 | 2539 | struct sys_dev *list, *hba; |
d665cc31 DW |
2540 | int host_base = 0; |
2541 | int port_count = 0; | |
9eafa1de | 2542 | int result=1; |
d665cc31 | 2543 | |
5615172f | 2544 | if (enumerate_only) { |
a891a3c2 | 2545 | if (check_env("IMSM_NO_PLATFORM")) |
5615172f | 2546 | return 0; |
a891a3c2 LM |
2547 | list = find_intel_devices(); |
2548 | if (!list) | |
2549 | return 2; | |
2550 | for (hba = list; hba; hba = hba->next) { | |
6b781d33 AP |
2551 | if (find_imsm_capability(hba)) { |
2552 | result = 0; | |
a891a3c2 LM |
2553 | break; |
2554 | } | |
9eafa1de | 2555 | else |
6b781d33 | 2556 | result = 2; |
a891a3c2 | 2557 | } |
a891a3c2 | 2558 | return result; |
5615172f DW |
2559 | } |
2560 | ||
155cbb4c LM |
2561 | list = find_intel_devices(); |
2562 | if (!list) { | |
ba728be7 | 2563 | if (verbose > 0) |
7a862a02 | 2564 | pr_err("no active Intel(R) RAID controller found.\n"); |
d665cc31 | 2565 | return 2; |
ba728be7 | 2566 | } else if (verbose > 0) |
155cbb4c | 2567 | print_found_intel_controllers(list); |
d665cc31 | 2568 | |
a891a3c2 | 2569 | for (hba = list; hba; hba = hba->next) { |
0858eccf | 2570 | if (controller_path && (compare_paths(hba->path, controller_path) != 0)) |
9eafa1de | 2571 | continue; |
0858eccf | 2572 | if (!find_imsm_capability(hba)) { |
60f0f54d | 2573 | char buf[PATH_MAX]; |
e7b84f9d | 2574 | pr_err("imsm capabilities not found for controller: %s (type %s)\n", |
60f0f54d PB |
2575 | hba->type == SYS_DEV_VMD ? vmd_domain_to_controller(hba, buf) : hba->path, |
2576 | get_sys_dev_type(hba->type)); | |
0858eccf AP |
2577 | continue; |
2578 | } | |
2579 | result = 0; | |
2580 | } | |
2581 | ||
2582 | if (controller_path && result == 1) { | |
2583 | pr_err("no active Intel(R) RAID controller found under %s\n", | |
2584 | controller_path); | |
2585 | return result; | |
2586 | } | |
2587 | ||
5e1d6128 | 2588 | const struct orom_entry *entry; |
0858eccf | 2589 | |
5e1d6128 | 2590 | for (entry = orom_entries; entry; entry = entry->next) { |
60f0f54d | 2591 | if (entry->type == SYS_DEV_VMD) { |
07cb1e57 | 2592 | print_imsm_capability(&entry->orom); |
32716c51 PB |
2593 | printf(" 3rd party NVMe :%s supported\n", |
2594 | imsm_orom_has_tpv_support(&entry->orom)?"":" not"); | |
60f0f54d PB |
2595 | for (hba = list; hba; hba = hba->next) { |
2596 | if (hba->type == SYS_DEV_VMD) { | |
2597 | char buf[PATH_MAX]; | |
60f0f54d PB |
2598 | printf(" I/O Controller : %s (%s)\n", |
2599 | vmd_domain_to_controller(hba, buf), get_sys_dev_type(hba->type)); | |
6da53c0e | 2600 | if (print_nvme_info(hba)) { |
b5eece69 PB |
2601 | if (verbose > 0) |
2602 | pr_err("failed to get devices attached to VMD domain.\n"); | |
2603 | result |= 2; | |
2604 | } | |
60f0f54d PB |
2605 | } |
2606 | } | |
07cb1e57 | 2607 | printf("\n"); |
60f0f54d PB |
2608 | continue; |
2609 | } | |
0858eccf | 2610 | |
60f0f54d PB |
2611 | print_imsm_capability(&entry->orom); |
2612 | if (entry->type == SYS_DEV_NVME) { | |
0858eccf AP |
2613 | for (hba = list; hba; hba = hba->next) { |
2614 | if (hba->type == SYS_DEV_NVME) | |
6da53c0e | 2615 | print_nvme_info(hba); |
0858eccf | 2616 | } |
60f0f54d | 2617 | printf("\n"); |
0858eccf AP |
2618 | continue; |
2619 | } | |
2620 | ||
2621 | struct devid_list *devid; | |
5e1d6128 | 2622 | for (devid = entry->devid_list; devid; devid = devid->next) { |
0858eccf AP |
2623 | hba = device_by_id(devid->devid); |
2624 | if (!hba) | |
2625 | continue; | |
2626 | ||
9eafa1de MN |
2627 | printf(" I/O Controller : %s (%s)\n", |
2628 | hba->path, get_sys_dev_type(hba->type)); | |
2629 | if (hba->type == SYS_DEV_SATA) { | |
2630 | host_base = ahci_get_port_count(hba->path, &port_count); | |
2631 | if (ahci_enumerate_ports(hba->path, port_count, host_base, verbose)) { | |
2632 | if (verbose > 0) | |
7a862a02 | 2633 | pr_err("failed to enumerate ports on SATA controller at %s.\n", hba->pci_id); |
9eafa1de MN |
2634 | result |= 2; |
2635 | } | |
120dc887 LM |
2636 | } |
2637 | } | |
0858eccf | 2638 | printf("\n"); |
d665cc31 | 2639 | } |
155cbb4c | 2640 | |
120dc887 | 2641 | return result; |
d665cc31 | 2642 | } |
e50cf220 | 2643 | |
9eafa1de | 2644 | static int export_detail_platform_imsm(int verbose, char *controller_path) |
e50cf220 | 2645 | { |
e50cf220 MN |
2646 | struct sys_dev *list, *hba; |
2647 | int result=1; | |
2648 | ||
2649 | list = find_intel_devices(); | |
2650 | if (!list) { | |
2651 | if (verbose > 0) | |
2652 | pr_err("IMSM_DETAIL_PLATFORM_ERROR=NO_INTEL_DEVICES\n"); | |
2653 | result = 2; | |
e50cf220 MN |
2654 | return result; |
2655 | } | |
2656 | ||
2657 | for (hba = list; hba; hba = hba->next) { | |
9eafa1de MN |
2658 | if (controller_path && (compare_paths(hba->path,controller_path) != 0)) |
2659 | continue; | |
60f0f54d PB |
2660 | if (!find_imsm_capability(hba) && verbose > 0) { |
2661 | char buf[PATH_MAX]; | |
2662 | pr_err("IMSM_DETAIL_PLATFORM_ERROR=NO_IMSM_CAPABLE_DEVICE_UNDER_%s\n", | |
2663 | hba->type == SYS_DEV_VMD ? vmd_domain_to_controller(hba, buf) : hba->path); | |
2664 | } | |
0858eccf | 2665 | else |
e50cf220 | 2666 | result = 0; |
e50cf220 MN |
2667 | } |
2668 | ||
5e1d6128 | 2669 | const struct orom_entry *entry; |
0858eccf | 2670 | |
60f0f54d PB |
2671 | for (entry = orom_entries; entry; entry = entry->next) { |
2672 | if (entry->type == SYS_DEV_VMD) { | |
2673 | for (hba = list; hba; hba = hba->next) | |
2674 | print_imsm_capability_export(&entry->orom); | |
2675 | continue; | |
2676 | } | |
5e1d6128 | 2677 | print_imsm_capability_export(&entry->orom); |
60f0f54d | 2678 | } |
0858eccf | 2679 | |
e50cf220 MN |
2680 | return result; |
2681 | } | |
2682 | ||
cdddbdbc DW |
2683 | static int match_home_imsm(struct supertype *st, char *homehost) |
2684 | { | |
5115ca67 DW |
2685 | /* the imsm metadata format does not specify any host |
2686 | * identification information. We return -1 since we can never | |
2687 | * confirm nor deny whether a given array is "meant" for this | |
148acb7b | 2688 | * host. We rely on compare_super and the 'family_num' fields to |
5115ca67 DW |
2689 | * exclude member disks that do not belong, and we rely on |
2690 | * mdadm.conf to specify the arrays that should be assembled. | |
2691 | * Auto-assembly may still pick up "foreign" arrays. | |
2692 | */ | |
cdddbdbc | 2693 | |
9362c1c8 | 2694 | return -1; |
cdddbdbc DW |
2695 | } |
2696 | ||
2697 | static void uuid_from_super_imsm(struct supertype *st, int uuid[4]) | |
2698 | { | |
51006d85 N |
2699 | /* The uuid returned here is used for: |
2700 | * uuid to put into bitmap file (Create, Grow) | |
2701 | * uuid for backup header when saving critical section (Grow) | |
2702 | * comparing uuids when re-adding a device into an array | |
2703 | * In these cases the uuid required is that of the data-array, | |
2704 | * not the device-set. | |
2705 | * uuid to recognise same set when adding a missing device back | |
2706 | * to an array. This is a uuid for the device-set. | |
1011e834 | 2707 | * |
51006d85 N |
2708 | * For each of these we can make do with a truncated |
2709 | * or hashed uuid rather than the original, as long as | |
2710 | * everyone agrees. | |
2711 | * In each case the uuid required is that of the data-array, | |
2712 | * not the device-set. | |
43dad3d6 | 2713 | */ |
51006d85 N |
2714 | /* imsm does not track uuid's so we synthesis one using sha1 on |
2715 | * - The signature (Which is constant for all imsm array, but no matter) | |
148acb7b | 2716 | * - the orig_family_num of the container |
51006d85 N |
2717 | * - the index number of the volume |
2718 | * - the 'serial' number of the volume. | |
2719 | * Hopefully these are all constant. | |
2720 | */ | |
2721 | struct intel_super *super = st->sb; | |
43dad3d6 | 2722 | |
51006d85 N |
2723 | char buf[20]; |
2724 | struct sha1_ctx ctx; | |
2725 | struct imsm_dev *dev = NULL; | |
148acb7b | 2726 | __u32 family_num; |
51006d85 | 2727 | |
148acb7b DW |
2728 | /* some mdadm versions failed to set ->orig_family_num, in which |
2729 | * case fall back to ->family_num. orig_family_num will be | |
2730 | * fixed up with the first metadata update. | |
2731 | */ | |
2732 | family_num = super->anchor->orig_family_num; | |
2733 | if (family_num == 0) | |
2734 | family_num = super->anchor->family_num; | |
51006d85 | 2735 | sha1_init_ctx(&ctx); |
92bd8f8d | 2736 | sha1_process_bytes(super->anchor->sig, MPB_SIG_LEN, &ctx); |
148acb7b | 2737 | sha1_process_bytes(&family_num, sizeof(__u32), &ctx); |
51006d85 N |
2738 | if (super->current_vol >= 0) |
2739 | dev = get_imsm_dev(super, super->current_vol); | |
2740 | if (dev) { | |
2741 | __u32 vol = super->current_vol; | |
2742 | sha1_process_bytes(&vol, sizeof(vol), &ctx); | |
2743 | sha1_process_bytes(dev->volume, MAX_RAID_SERIAL_LEN, &ctx); | |
2744 | } | |
2745 | sha1_finish_ctx(&ctx, buf); | |
2746 | memcpy(uuid, buf, 4*4); | |
cdddbdbc DW |
2747 | } |
2748 | ||
0d481d37 | 2749 | #if 0 |
4f5bc454 DW |
2750 | static void |
2751 | get_imsm_numerical_version(struct imsm_super *mpb, int *m, int *p) | |
cdddbdbc | 2752 | { |
cdddbdbc DW |
2753 | __u8 *v = get_imsm_version(mpb); |
2754 | __u8 *end = mpb->sig + MAX_SIGNATURE_LENGTH; | |
2755 | char major[] = { 0, 0, 0 }; | |
2756 | char minor[] = { 0 ,0, 0 }; | |
2757 | char patch[] = { 0, 0, 0 }; | |
2758 | char *ver_parse[] = { major, minor, patch }; | |
2759 | int i, j; | |
2760 | ||
2761 | i = j = 0; | |
2762 | while (*v != '\0' && v < end) { | |
2763 | if (*v != '.' && j < 2) | |
2764 | ver_parse[i][j++] = *v; | |
2765 | else { | |
2766 | i++; | |
2767 | j = 0; | |
2768 | } | |
2769 | v++; | |
2770 | } | |
2771 | ||
4f5bc454 DW |
2772 | *m = strtol(minor, NULL, 0); |
2773 | *p = strtol(patch, NULL, 0); | |
2774 | } | |
0d481d37 | 2775 | #endif |
4f5bc454 | 2776 | |
1e5c6983 DW |
2777 | static __u32 migr_strip_blocks_resync(struct imsm_dev *dev) |
2778 | { | |
2779 | /* migr_strip_size when repairing or initializing parity */ | |
238c0a71 | 2780 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
1e5c6983 DW |
2781 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); |
2782 | ||
2783 | switch (get_imsm_raid_level(map)) { | |
2784 | case 5: | |
2785 | case 10: | |
2786 | return chunk; | |
2787 | default: | |
2788 | return 128*1024 >> 9; | |
2789 | } | |
2790 | } | |
2791 | ||
2792 | static __u32 migr_strip_blocks_rebuild(struct imsm_dev *dev) | |
2793 | { | |
2794 | /* migr_strip_size when rebuilding a degraded disk, no idea why | |
2795 | * this is different than migr_strip_size_resync(), but it's good | |
2796 | * to be compatible | |
2797 | */ | |
238c0a71 | 2798 | struct imsm_map *map = get_imsm_map(dev, MAP_1); |
1e5c6983 DW |
2799 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); |
2800 | ||
2801 | switch (get_imsm_raid_level(map)) { | |
2802 | case 1: | |
2803 | case 10: | |
2804 | if (map->num_members % map->num_domains == 0) | |
2805 | return 128*1024 >> 9; | |
2806 | else | |
2807 | return chunk; | |
2808 | case 5: | |
2809 | return max((__u32) 64*1024 >> 9, chunk); | |
2810 | default: | |
2811 | return 128*1024 >> 9; | |
2812 | } | |
2813 | } | |
2814 | ||
2815 | static __u32 num_stripes_per_unit_resync(struct imsm_dev *dev) | |
2816 | { | |
238c0a71 AK |
2817 | struct imsm_map *lo = get_imsm_map(dev, MAP_0); |
2818 | struct imsm_map *hi = get_imsm_map(dev, MAP_1); | |
1e5c6983 DW |
2819 | __u32 lo_chunk = __le32_to_cpu(lo->blocks_per_strip); |
2820 | __u32 hi_chunk = __le32_to_cpu(hi->blocks_per_strip); | |
2821 | ||
2822 | return max((__u32) 1, hi_chunk / lo_chunk); | |
2823 | } | |
2824 | ||
2825 | static __u32 num_stripes_per_unit_rebuild(struct imsm_dev *dev) | |
2826 | { | |
238c0a71 | 2827 | struct imsm_map *lo = get_imsm_map(dev, MAP_0); |
1e5c6983 DW |
2828 | int level = get_imsm_raid_level(lo); |
2829 | ||
2830 | if (level == 1 || level == 10) { | |
238c0a71 | 2831 | struct imsm_map *hi = get_imsm_map(dev, MAP_1); |
1e5c6983 DW |
2832 | |
2833 | return hi->num_domains; | |
2834 | } else | |
2835 | return num_stripes_per_unit_resync(dev); | |
2836 | } | |
2837 | ||
9529d343 | 2838 | static __u8 imsm_num_data_members(struct imsm_map *map) |
1e5c6983 DW |
2839 | { |
2840 | /* named 'imsm_' because raid0, raid1 and raid10 | |
2841 | * counter-intuitively have the same number of data disks | |
2842 | */ | |
1e5c6983 DW |
2843 | switch (get_imsm_raid_level(map)) { |
2844 | case 0: | |
36fd8ccc AK |
2845 | return map->num_members; |
2846 | break; | |
1e5c6983 DW |
2847 | case 1: |
2848 | case 10: | |
36fd8ccc | 2849 | return map->num_members/2; |
1e5c6983 DW |
2850 | case 5: |
2851 | return map->num_members - 1; | |
2852 | default: | |
1ade5cc1 | 2853 | dprintf("unsupported raid level\n"); |
1e5c6983 DW |
2854 | return 0; |
2855 | } | |
2856 | } | |
2857 | ||
44490938 MD |
2858 | static unsigned long long calc_component_size(struct imsm_map *map, |
2859 | struct imsm_dev *dev) | |
2860 | { | |
2861 | unsigned long long component_size; | |
2862 | unsigned long long dev_size = imsm_dev_size(dev); | |
a4f7290c | 2863 | long long calc_dev_size = 0; |
44490938 MD |
2864 | unsigned int member_disks = imsm_num_data_members(map); |
2865 | ||
2866 | if (member_disks == 0) | |
2867 | return 0; | |
2868 | ||
2869 | component_size = per_dev_array_size(map); | |
2870 | calc_dev_size = component_size * member_disks; | |
2871 | ||
2872 | /* Component size is rounded to 1MB so difference between size from | |
2873 | * metadata and size calculated from num_data_stripes equals up to | |
2874 | * 2048 blocks per each device. If the difference is higher it means | |
2875 | * that array size was expanded and num_data_stripes was not updated. | |
2876 | */ | |
a4f7290c | 2877 | if (llabs(calc_dev_size - (long long)dev_size) > |
44490938 MD |
2878 | (1 << SECT_PER_MB_SHIFT) * member_disks) { |
2879 | component_size = dev_size / member_disks; | |
2880 | dprintf("Invalid num_data_stripes in metadata; expected=%llu, found=%llu\n", | |
2881 | component_size / map->blocks_per_strip, | |
2882 | num_data_stripes(map)); | |
2883 | } | |
2884 | ||
2885 | return component_size; | |
2886 | } | |
2887 | ||
1e5c6983 DW |
2888 | static __u32 parity_segment_depth(struct imsm_dev *dev) |
2889 | { | |
238c0a71 | 2890 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
1e5c6983 DW |
2891 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); |
2892 | ||
2893 | switch(get_imsm_raid_level(map)) { | |
2894 | case 1: | |
2895 | case 10: | |
2896 | return chunk * map->num_domains; | |
2897 | case 5: | |
2898 | return chunk * map->num_members; | |
2899 | default: | |
2900 | return chunk; | |
2901 | } | |
2902 | } | |
2903 | ||
2904 | static __u32 map_migr_block(struct imsm_dev *dev, __u32 block) | |
2905 | { | |
238c0a71 | 2906 | struct imsm_map *map = get_imsm_map(dev, MAP_1); |
1e5c6983 DW |
2907 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); |
2908 | __u32 strip = block / chunk; | |
2909 | ||
2910 | switch (get_imsm_raid_level(map)) { | |
2911 | case 1: | |
2912 | case 10: { | |
2913 | __u32 vol_strip = (strip * map->num_domains) + 1; | |
2914 | __u32 vol_stripe = vol_strip / map->num_members; | |
2915 | ||
2916 | return vol_stripe * chunk + block % chunk; | |
2917 | } case 5: { | |
2918 | __u32 stripe = strip / (map->num_members - 1); | |
2919 | ||
2920 | return stripe * chunk + block % chunk; | |
2921 | } | |
2922 | default: | |
2923 | return 0; | |
2924 | } | |
2925 | } | |
2926 | ||
c47b0ff6 AK |
2927 | static __u64 blocks_per_migr_unit(struct intel_super *super, |
2928 | struct imsm_dev *dev) | |
1e5c6983 DW |
2929 | { |
2930 | /* calculate the conversion factor between per member 'blocks' | |
2931 | * (md/{resync,rebuild}_start) and imsm migration units, return | |
2932 | * 0 for the 'not migrating' and 'unsupported migration' cases | |
2933 | */ | |
2934 | if (!dev->vol.migr_state) | |
2935 | return 0; | |
2936 | ||
2937 | switch (migr_type(dev)) { | |
c47b0ff6 AK |
2938 | case MIGR_GEN_MIGR: { |
2939 | struct migr_record *migr_rec = super->migr_rec; | |
2940 | return __le32_to_cpu(migr_rec->blocks_per_unit); | |
2941 | } | |
1e5c6983 DW |
2942 | case MIGR_VERIFY: |
2943 | case MIGR_REPAIR: | |
2944 | case MIGR_INIT: { | |
238c0a71 | 2945 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
1e5c6983 DW |
2946 | __u32 stripes_per_unit; |
2947 | __u32 blocks_per_unit; | |
2948 | __u32 parity_depth; | |
2949 | __u32 migr_chunk; | |
2950 | __u32 block_map; | |
2951 | __u32 block_rel; | |
2952 | __u32 segment; | |
2953 | __u32 stripe; | |
2954 | __u8 disks; | |
2955 | ||
2956 | /* yes, this is really the translation of migr_units to | |
2957 | * per-member blocks in the 'resync' case | |
2958 | */ | |
2959 | stripes_per_unit = num_stripes_per_unit_resync(dev); | |
2960 | migr_chunk = migr_strip_blocks_resync(dev); | |
9529d343 | 2961 | disks = imsm_num_data_members(map); |
1e5c6983 | 2962 | blocks_per_unit = stripes_per_unit * migr_chunk * disks; |
7b1ab482 | 2963 | stripe = __le16_to_cpu(map->blocks_per_strip) * disks; |
1e5c6983 DW |
2964 | segment = blocks_per_unit / stripe; |
2965 | block_rel = blocks_per_unit - segment * stripe; | |
2966 | parity_depth = parity_segment_depth(dev); | |
2967 | block_map = map_migr_block(dev, block_rel); | |
2968 | return block_map + parity_depth * segment; | |
2969 | } | |
2970 | case MIGR_REBUILD: { | |
2971 | __u32 stripes_per_unit; | |
2972 | __u32 migr_chunk; | |
2973 | ||
2974 | stripes_per_unit = num_stripes_per_unit_rebuild(dev); | |
2975 | migr_chunk = migr_strip_blocks_rebuild(dev); | |
2976 | return migr_chunk * stripes_per_unit; | |
2977 | } | |
1e5c6983 DW |
2978 | case MIGR_STATE_CHANGE: |
2979 | default: | |
2980 | return 0; | |
2981 | } | |
2982 | } | |
2983 | ||
c2c087e6 DW |
2984 | static int imsm_level_to_layout(int level) |
2985 | { | |
2986 | switch (level) { | |
2987 | case 0: | |
2988 | case 1: | |
2989 | return 0; | |
2990 | case 5: | |
2991 | case 6: | |
a380c027 | 2992 | return ALGORITHM_LEFT_ASYMMETRIC; |
c2c087e6 | 2993 | case 10: |
c92a2527 | 2994 | return 0x102; |
c2c087e6 | 2995 | } |
a18a888e | 2996 | return UnSet; |
c2c087e6 DW |
2997 | } |
2998 | ||
8e59f3d8 AK |
2999 | /******************************************************************************* |
3000 | * Function: read_imsm_migr_rec | |
3001 | * Description: Function reads imsm migration record from last sector of disk | |
3002 | * Parameters: | |
3003 | * fd : disk descriptor | |
3004 | * super : metadata info | |
3005 | * Returns: | |
3006 | * 0 : success, | |
3007 | * -1 : fail | |
3008 | ******************************************************************************/ | |
3009 | static int read_imsm_migr_rec(int fd, struct intel_super *super) | |
3010 | { | |
3011 | int ret_val = -1; | |
de44e46f | 3012 | unsigned int sector_size = super->sector_size; |
8e59f3d8 AK |
3013 | unsigned long long dsize; |
3014 | ||
3015 | get_dev_size(fd, NULL, &dsize); | |
de44e46f PB |
3016 | if (lseek64(fd, dsize - (sector_size*MIGR_REC_SECTOR_POSITION), |
3017 | SEEK_SET) < 0) { | |
e7b84f9d N |
3018 | pr_err("Cannot seek to anchor block: %s\n", |
3019 | strerror(errno)); | |
8e59f3d8 AK |
3020 | goto out; |
3021 | } | |
466070ad | 3022 | if ((unsigned int)read(fd, super->migr_rec_buf, |
de44e46f PB |
3023 | MIGR_REC_BUF_SECTORS*sector_size) != |
3024 | MIGR_REC_BUF_SECTORS*sector_size) { | |
e7b84f9d N |
3025 | pr_err("Cannot read migr record block: %s\n", |
3026 | strerror(errno)); | |
8e59f3d8 AK |
3027 | goto out; |
3028 | } | |
3029 | ret_val = 0; | |
de44e46f PB |
3030 | if (sector_size == 4096) |
3031 | convert_from_4k_imsm_migr_rec(super); | |
8e59f3d8 AK |
3032 | |
3033 | out: | |
3034 | return ret_val; | |
3035 | } | |
3036 | ||
3136abe5 AK |
3037 | static struct imsm_dev *imsm_get_device_during_migration( |
3038 | struct intel_super *super) | |
3039 | { | |
3040 | ||
3041 | struct intel_dev *dv; | |
3042 | ||
3043 | for (dv = super->devlist; dv; dv = dv->next) { | |
3044 | if (is_gen_migration(dv->dev)) | |
3045 | return dv->dev; | |
3046 | } | |
3047 | return NULL; | |
3048 | } | |
3049 | ||
8e59f3d8 AK |
3050 | /******************************************************************************* |
3051 | * Function: load_imsm_migr_rec | |
3052 | * Description: Function reads imsm migration record (it is stored at the last | |
3053 | * sector of disk) | |
3054 | * Parameters: | |
3055 | * super : imsm internal array info | |
3056 | * info : general array info | |
3057 | * Returns: | |
3058 | * 0 : success | |
3059 | * -1 : fail | |
4c965cc9 | 3060 | * -2 : no migration in progress |
8e59f3d8 AK |
3061 | ******************************************************************************/ |
3062 | static int load_imsm_migr_rec(struct intel_super *super, struct mdinfo *info) | |
3063 | { | |
3064 | struct mdinfo *sd; | |
594dc1b8 | 3065 | struct dl *dl; |
8e59f3d8 AK |
3066 | char nm[30]; |
3067 | int retval = -1; | |
3068 | int fd = -1; | |
3136abe5 | 3069 | struct imsm_dev *dev; |
594dc1b8 | 3070 | struct imsm_map *map; |
b4ab44d8 | 3071 | int slot = -1; |
3136abe5 AK |
3072 | |
3073 | /* find map under migration */ | |
3074 | dev = imsm_get_device_during_migration(super); | |
3075 | /* nothing to load,no migration in progress? | |
3076 | */ | |
3077 | if (dev == NULL) | |
4c965cc9 | 3078 | return -2; |
8e59f3d8 AK |
3079 | |
3080 | if (info) { | |
3081 | for (sd = info->devs ; sd ; sd = sd->next) { | |
3082 | /* read only from one of the first two slots */ | |
12fe93e9 TM |
3083 | if ((sd->disk.raid_disk < 0) || |
3084 | (sd->disk.raid_disk > 1)) | |
8e59f3d8 | 3085 | continue; |
3136abe5 | 3086 | |
8e59f3d8 AK |
3087 | sprintf(nm, "%d:%d", sd->disk.major, sd->disk.minor); |
3088 | fd = dev_open(nm, O_RDONLY); | |
3089 | if (fd >= 0) | |
3090 | break; | |
3091 | } | |
3092 | } | |
3093 | if (fd < 0) { | |
12fe93e9 | 3094 | map = get_imsm_map(dev, MAP_0); |
8e59f3d8 | 3095 | for (dl = super->disks; dl; dl = dl->next) { |
3136abe5 AK |
3096 | /* skip spare and failed disks |
3097 | */ | |
3098 | if (dl->index < 0) | |
3099 | continue; | |
8e59f3d8 | 3100 | /* read only from one of the first two slots */ |
3136abe5 AK |
3101 | if (map) |
3102 | slot = get_imsm_disk_slot(map, dl->index); | |
089f9d79 | 3103 | if (map == NULL || slot > 1 || slot < 0) |
8e59f3d8 AK |
3104 | continue; |
3105 | sprintf(nm, "%d:%d", dl->major, dl->minor); | |
3106 | fd = dev_open(nm, O_RDONLY); | |
3107 | if (fd >= 0) | |
3108 | break; | |
3109 | } | |
3110 | } | |
3111 | if (fd < 0) | |
3112 | goto out; | |
3113 | retval = read_imsm_migr_rec(fd, super); | |
3114 | ||
3115 | out: | |
3116 | if (fd >= 0) | |
3117 | close(fd); | |
3118 | return retval; | |
3119 | } | |
3120 | ||
c17608ea AK |
3121 | /******************************************************************************* |
3122 | * function: imsm_create_metadata_checkpoint_update | |
3123 | * Description: It creates update for checkpoint change. | |
3124 | * Parameters: | |
3125 | * super : imsm internal array info | |
3126 | * u : pointer to prepared update | |
3127 | * Returns: | |
3128 | * Uptate length. | |
3129 | * If length is equal to 0, input pointer u contains no update | |
3130 | ******************************************************************************/ | |
3131 | static int imsm_create_metadata_checkpoint_update( | |
3132 | struct intel_super *super, | |
3133 | struct imsm_update_general_migration_checkpoint **u) | |
3134 | { | |
3135 | ||
3136 | int update_memory_size = 0; | |
3137 | ||
1ade5cc1 | 3138 | dprintf("(enter)\n"); |
c17608ea AK |
3139 | |
3140 | if (u == NULL) | |
3141 | return 0; | |
3142 | *u = NULL; | |
3143 | ||
3144 | /* size of all update data without anchor */ | |
3145 | update_memory_size = | |
3146 | sizeof(struct imsm_update_general_migration_checkpoint); | |
3147 | ||
503975b9 | 3148 | *u = xcalloc(1, update_memory_size); |
c17608ea | 3149 | if (*u == NULL) { |
1ade5cc1 | 3150 | dprintf("error: cannot get memory\n"); |
c17608ea AK |
3151 | return 0; |
3152 | } | |
3153 | (*u)->type = update_general_migration_checkpoint; | |
9f421827 | 3154 | (*u)->curr_migr_unit = current_migr_unit(super->migr_rec); |
1ade5cc1 | 3155 | dprintf("prepared for %u\n", (*u)->curr_migr_unit); |
c17608ea AK |
3156 | |
3157 | return update_memory_size; | |
3158 | } | |
3159 | ||
c17608ea AK |
3160 | static void imsm_update_metadata_locally(struct supertype *st, |
3161 | void *buf, int len); | |
3162 | ||
687629c2 AK |
3163 | /******************************************************************************* |
3164 | * Function: write_imsm_migr_rec | |
3165 | * Description: Function writes imsm migration record | |
3166 | * (at the last sector of disk) | |
3167 | * Parameters: | |
3168 | * super : imsm internal array info | |
3169 | * Returns: | |
3170 | * 0 : success | |
3171 | * -1 : if fail | |
3172 | ******************************************************************************/ | |
3173 | static int write_imsm_migr_rec(struct supertype *st) | |
3174 | { | |
3175 | struct intel_super *super = st->sb; | |
de44e46f | 3176 | unsigned int sector_size = super->sector_size; |
687629c2 AK |
3177 | unsigned long long dsize; |
3178 | char nm[30]; | |
3179 | int fd = -1; | |
3180 | int retval = -1; | |
3181 | struct dl *sd; | |
c17608ea AK |
3182 | int len; |
3183 | struct imsm_update_general_migration_checkpoint *u; | |
3136abe5 | 3184 | struct imsm_dev *dev; |
594dc1b8 | 3185 | struct imsm_map *map; |
3136abe5 AK |
3186 | |
3187 | /* find map under migration */ | |
3188 | dev = imsm_get_device_during_migration(super); | |
3189 | /* if no migration, write buffer anyway to clear migr_record | |
3190 | * on disk based on first available device | |
3191 | */ | |
3192 | if (dev == NULL) | |
3193 | dev = get_imsm_dev(super, super->current_vol < 0 ? 0 : | |
3194 | super->current_vol); | |
3195 | ||
44bfe6df | 3196 | map = get_imsm_map(dev, MAP_0); |
687629c2 | 3197 | |
de44e46f PB |
3198 | if (sector_size == 4096) |
3199 | convert_to_4k_imsm_migr_rec(super); | |
687629c2 | 3200 | for (sd = super->disks ; sd ; sd = sd->next) { |
b4ab44d8 | 3201 | int slot = -1; |
3136abe5 AK |
3202 | |
3203 | /* skip failed and spare devices */ | |
3204 | if (sd->index < 0) | |
3205 | continue; | |
687629c2 | 3206 | /* write to 2 first slots only */ |
3136abe5 AK |
3207 | if (map) |
3208 | slot = get_imsm_disk_slot(map, sd->index); | |
089f9d79 | 3209 | if (map == NULL || slot > 1 || slot < 0) |
687629c2 | 3210 | continue; |
3136abe5 | 3211 | |
687629c2 AK |
3212 | sprintf(nm, "%d:%d", sd->major, sd->minor); |
3213 | fd = dev_open(nm, O_RDWR); | |
3214 | if (fd < 0) | |
3215 | continue; | |
3216 | get_dev_size(fd, NULL, &dsize); | |
de44e46f PB |
3217 | if (lseek64(fd, dsize - (MIGR_REC_SECTOR_POSITION*sector_size), |
3218 | SEEK_SET) < 0) { | |
e7b84f9d N |
3219 | pr_err("Cannot seek to anchor block: %s\n", |
3220 | strerror(errno)); | |
687629c2 AK |
3221 | goto out; |
3222 | } | |
466070ad | 3223 | if ((unsigned int)write(fd, super->migr_rec_buf, |
de44e46f PB |
3224 | MIGR_REC_BUF_SECTORS*sector_size) != |
3225 | MIGR_REC_BUF_SECTORS*sector_size) { | |
e7b84f9d N |
3226 | pr_err("Cannot write migr record block: %s\n", |
3227 | strerror(errno)); | |
687629c2 AK |
3228 | goto out; |
3229 | } | |
3230 | close(fd); | |
3231 | fd = -1; | |
3232 | } | |
de44e46f PB |
3233 | if (sector_size == 4096) |
3234 | convert_from_4k_imsm_migr_rec(super); | |
c17608ea AK |
3235 | /* update checkpoint information in metadata */ |
3236 | len = imsm_create_metadata_checkpoint_update(super, &u); | |
c17608ea AK |
3237 | if (len <= 0) { |
3238 | dprintf("imsm: Cannot prepare update\n"); | |
3239 | goto out; | |
3240 | } | |
3241 | /* update metadata locally */ | |
3242 | imsm_update_metadata_locally(st, u, len); | |
3243 | /* and possibly remotely */ | |
3244 | if (st->update_tail) { | |
3245 | append_metadata_update(st, u, len); | |
3246 | /* during reshape we do all work inside metadata handler | |
3247 | * manage_reshape(), so metadata update has to be triggered | |
3248 | * insida it | |
3249 | */ | |
3250 | flush_metadata_updates(st); | |
3251 | st->update_tail = &st->updates; | |
3252 | } else | |
3253 | free(u); | |
687629c2 AK |
3254 | |
3255 | retval = 0; | |
3256 | out: | |
3257 | if (fd >= 0) | |
3258 | close(fd); | |
3259 | return retval; | |
3260 | } | |
3261 | ||
e2962bfc AK |
3262 | /* spare/missing disks activations are not allowe when |
3263 | * array/container performs reshape operation, because | |
3264 | * all arrays in container works on the same disks set | |
3265 | */ | |
3266 | int imsm_reshape_blocks_arrays_changes(struct intel_super *super) | |
3267 | { | |
3268 | int rv = 0; | |
3269 | struct intel_dev *i_dev; | |
3270 | struct imsm_dev *dev; | |
3271 | ||
3272 | /* check whole container | |
3273 | */ | |
3274 | for (i_dev = super->devlist; i_dev; i_dev = i_dev->next) { | |
3275 | dev = i_dev->dev; | |
3ad25638 | 3276 | if (is_gen_migration(dev)) { |
e2962bfc AK |
3277 | /* No repair during any migration in container |
3278 | */ | |
3279 | rv = 1; | |
3280 | break; | |
3281 | } | |
3282 | } | |
3283 | return rv; | |
3284 | } | |
3e684231 | 3285 | static unsigned long long imsm_component_size_alignment_check(int level, |
c41e00b2 | 3286 | int chunk_size, |
f36a9ecd | 3287 | unsigned int sector_size, |
c41e00b2 AK |
3288 | unsigned long long component_size) |
3289 | { | |
3e684231 | 3290 | unsigned int component_size_alignment; |
c41e00b2 | 3291 | |
3e684231 | 3292 | /* check component size alignment |
c41e00b2 | 3293 | */ |
3e684231 | 3294 | component_size_alignment = component_size % (chunk_size/sector_size); |
c41e00b2 | 3295 | |
3e684231 | 3296 | dprintf("(Level: %i, chunk_size = %i, component_size = %llu), component_size_alignment = %u\n", |
c41e00b2 | 3297 | level, chunk_size, component_size, |
3e684231 | 3298 | component_size_alignment); |
c41e00b2 | 3299 | |
3e684231 MZ |
3300 | if (component_size_alignment && (level != 1) && (level != UnSet)) { |
3301 | dprintf("imsm: reported component size aligned from %llu ", | |
c41e00b2 | 3302 | component_size); |
3e684231 | 3303 | component_size -= component_size_alignment; |
1ade5cc1 | 3304 | dprintf_cont("to %llu (%i).\n", |
3e684231 | 3305 | component_size, component_size_alignment); |
c41e00b2 AK |
3306 | } |
3307 | ||
3308 | return component_size; | |
3309 | } | |
e2962bfc | 3310 | |
2432ce9b AP |
3311 | static unsigned long long get_ppl_sector(struct intel_super *super, int dev_idx) |
3312 | { | |
3313 | struct imsm_dev *dev = get_imsm_dev(super, dev_idx); | |
3314 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
3315 | ||
3316 | return pba_of_lba0(map) + | |
3317 | (num_data_stripes(map) * map->blocks_per_strip); | |
3318 | } | |
3319 | ||
a5d85af7 | 3320 | static void getinfo_super_imsm_volume(struct supertype *st, struct mdinfo *info, char *dmap) |
bf5a934a DW |
3321 | { |
3322 | struct intel_super *super = st->sb; | |
c47b0ff6 | 3323 | struct migr_record *migr_rec = super->migr_rec; |
949c47a0 | 3324 | struct imsm_dev *dev = get_imsm_dev(super, super->current_vol); |
238c0a71 AK |
3325 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
3326 | struct imsm_map *prev_map = get_imsm_map(dev, MAP_1); | |
b335e593 | 3327 | struct imsm_map *map_to_analyse = map; |
efb30e7f | 3328 | struct dl *dl; |
a5d85af7 | 3329 | int map_disks = info->array.raid_disks; |
bf5a934a | 3330 | |
95eeceeb | 3331 | memset(info, 0, sizeof(*info)); |
b335e593 AK |
3332 | if (prev_map) |
3333 | map_to_analyse = prev_map; | |
3334 | ||
ca0748fa | 3335 | dl = super->current_disk; |
9894ec0d | 3336 | |
bf5a934a | 3337 | info->container_member = super->current_vol; |
cd0430a1 | 3338 | info->array.raid_disks = map->num_members; |
b335e593 | 3339 | info->array.level = get_imsm_raid_level(map_to_analyse); |
bf5a934a DW |
3340 | info->array.layout = imsm_level_to_layout(info->array.level); |
3341 | info->array.md_minor = -1; | |
3342 | info->array.ctime = 0; | |
3343 | info->array.utime = 0; | |
b335e593 AK |
3344 | info->array.chunk_size = |
3345 | __le16_to_cpu(map_to_analyse->blocks_per_strip) << 9; | |
2432ce9b | 3346 | info->array.state = !(dev->vol.dirty & RAIDVOL_DIRTY); |
fcc2c9da | 3347 | info->custom_array_size = imsm_dev_size(dev); |
3ad25638 AK |
3348 | info->recovery_blocked = imsm_reshape_blocks_arrays_changes(st->sb); |
3349 | ||
3f510843 | 3350 | if (is_gen_migration(dev)) { |
3f83228a | 3351 | info->reshape_active = 1; |
b335e593 AK |
3352 | info->new_level = get_imsm_raid_level(map); |
3353 | info->new_layout = imsm_level_to_layout(info->new_level); | |
3354 | info->new_chunk = __le16_to_cpu(map->blocks_per_strip) << 9; | |
3f83228a | 3355 | info->delta_disks = map->num_members - prev_map->num_members; |
493f5dd6 N |
3356 | if (info->delta_disks) { |
3357 | /* this needs to be applied to every array | |
3358 | * in the container. | |
3359 | */ | |
81219e70 | 3360 | info->reshape_active = CONTAINER_RESHAPE; |
493f5dd6 | 3361 | } |
3f83228a N |
3362 | /* We shape information that we give to md might have to be |
3363 | * modify to cope with md's requirement for reshaping arrays. | |
3364 | * For example, when reshaping a RAID0, md requires it to be | |
3365 | * presented as a degraded RAID4. | |
3366 | * Also if a RAID0 is migrating to a RAID5 we need to specify | |
3367 | * the array as already being RAID5, but the 'before' layout | |
3368 | * is a RAID4-like layout. | |
3369 | */ | |
3370 | switch (info->array.level) { | |
3371 | case 0: | |
3372 | switch(info->new_level) { | |
3373 | case 0: | |
3374 | /* conversion is happening as RAID4 */ | |
3375 | info->array.level = 4; | |
3376 | info->array.raid_disks += 1; | |
3377 | break; | |
3378 | case 5: | |
3379 | /* conversion is happening as RAID5 */ | |
3380 | info->array.level = 5; | |
3381 | info->array.layout = ALGORITHM_PARITY_N; | |
3f83228a N |
3382 | info->delta_disks -= 1; |
3383 | break; | |
3384 | default: | |
3385 | /* FIXME error message */ | |
3386 | info->array.level = UnSet; | |
3387 | break; | |
3388 | } | |
3389 | break; | |
3390 | } | |
b335e593 AK |
3391 | } else { |
3392 | info->new_level = UnSet; | |
3393 | info->new_layout = UnSet; | |
3394 | info->new_chunk = info->array.chunk_size; | |
3f83228a | 3395 | info->delta_disks = 0; |
b335e593 | 3396 | } |
ca0748fa | 3397 | |
efb30e7f DW |
3398 | if (dl) { |
3399 | info->disk.major = dl->major; | |
3400 | info->disk.minor = dl->minor; | |
ca0748fa | 3401 | info->disk.number = dl->index; |
656b6b5a N |
3402 | info->disk.raid_disk = get_imsm_disk_slot(map_to_analyse, |
3403 | dl->index); | |
efb30e7f | 3404 | } |
bf5a934a | 3405 | |
5551b113 | 3406 | info->data_offset = pba_of_lba0(map_to_analyse); |
44490938 | 3407 | info->component_size = calc_component_size(map, dev); |
3e684231 | 3408 | info->component_size = imsm_component_size_alignment_check( |
c41e00b2 AK |
3409 | info->array.level, |
3410 | info->array.chunk_size, | |
f36a9ecd | 3411 | super->sector_size, |
c41e00b2 | 3412 | info->component_size); |
5e46202e | 3413 | info->bb.supported = 1; |
139dae11 | 3414 | |
301406c9 | 3415 | memset(info->uuid, 0, sizeof(info->uuid)); |
921d9e16 | 3416 | info->recovery_start = MaxSector; |
bf5a934a | 3417 | |
c2462068 PB |
3418 | if (info->array.level == 5 && |
3419 | (dev->rwh_policy == RWH_DISTRIBUTED || | |
3420 | dev->rwh_policy == RWH_MULTIPLE_DISTRIBUTED)) { | |
2432ce9b AP |
3421 | info->consistency_policy = CONSISTENCY_POLICY_PPL; |
3422 | info->ppl_sector = get_ppl_sector(super, super->current_vol); | |
c2462068 PB |
3423 | if (dev->rwh_policy == RWH_MULTIPLE_DISTRIBUTED) |
3424 | info->ppl_size = MULTIPLE_PPL_AREA_SIZE_IMSM >> 9; | |
3425 | else | |
3426 | info->ppl_size = (PPL_HEADER_SIZE + PPL_ENTRY_SPACE) | |
3427 | >> 9; | |
2432ce9b AP |
3428 | } else if (info->array.level <= 0) { |
3429 | info->consistency_policy = CONSISTENCY_POLICY_NONE; | |
3430 | } else { | |
3431 | info->consistency_policy = CONSISTENCY_POLICY_RESYNC; | |
3432 | } | |
3433 | ||
d2e6d5d6 | 3434 | info->reshape_progress = 0; |
b6796ce1 | 3435 | info->resync_start = MaxSector; |
b9172665 | 3436 | if ((map_to_analyse->map_state == IMSM_T_STATE_UNINITIALIZED || |
2432ce9b | 3437 | !(info->array.state & 1)) && |
b9172665 | 3438 | imsm_reshape_blocks_arrays_changes(super) == 0) { |
301406c9 | 3439 | info->resync_start = 0; |
b6796ce1 AK |
3440 | } |
3441 | if (dev->vol.migr_state) { | |
1e5c6983 DW |
3442 | switch (migr_type(dev)) { |
3443 | case MIGR_REPAIR: | |
3444 | case MIGR_INIT: { | |
c47b0ff6 AK |
3445 | __u64 blocks_per_unit = blocks_per_migr_unit(super, |
3446 | dev); | |
1e5c6983 DW |
3447 | __u64 units = __le32_to_cpu(dev->vol.curr_migr_unit); |
3448 | ||
3449 | info->resync_start = blocks_per_unit * units; | |
3450 | break; | |
3451 | } | |
d2e6d5d6 | 3452 | case MIGR_GEN_MIGR: { |
c47b0ff6 AK |
3453 | __u64 blocks_per_unit = blocks_per_migr_unit(super, |
3454 | dev); | |
9f421827 | 3455 | __u64 units = current_migr_unit(migr_rec); |
04fa9523 AK |
3456 | unsigned long long array_blocks; |
3457 | int used_disks; | |
d2e6d5d6 | 3458 | |
befb629b AK |
3459 | if (__le32_to_cpu(migr_rec->ascending_migr) && |
3460 | (units < | |
9f421827 | 3461 | (get_num_migr_units(migr_rec)-1)) && |
befb629b AK |
3462 | (super->migr_rec->rec_status == |
3463 | __cpu_to_le32(UNIT_SRC_IN_CP_AREA))) | |
3464 | units++; | |
3465 | ||
d2e6d5d6 | 3466 | info->reshape_progress = blocks_per_unit * units; |
6289d1e0 | 3467 | |
7a862a02 | 3468 | dprintf("IMSM: General Migration checkpoint : %llu (%llu) -> read reshape progress : %llu\n", |
19986c72 MB |
3469 | (unsigned long long)units, |
3470 | (unsigned long long)blocks_per_unit, | |
3471 | info->reshape_progress); | |
75156c46 | 3472 | |
9529d343 | 3473 | used_disks = imsm_num_data_members(prev_map); |
75156c46 | 3474 | if (used_disks > 0) { |
44490938 | 3475 | array_blocks = per_dev_array_size(map) * |
75156c46 | 3476 | used_disks; |
b53bfba6 TM |
3477 | info->custom_array_size = |
3478 | round_size_to_mb(array_blocks, | |
3479 | used_disks); | |
3480 | ||
75156c46 | 3481 | } |
d2e6d5d6 | 3482 | } |
1e5c6983 DW |
3483 | case MIGR_VERIFY: |
3484 | /* we could emulate the checkpointing of | |
3485 | * 'sync_action=check' migrations, but for now | |
3486 | * we just immediately complete them | |
3487 | */ | |
3488 | case MIGR_REBUILD: | |
3489 | /* this is handled by container_content_imsm() */ | |
1e5c6983 DW |
3490 | case MIGR_STATE_CHANGE: |
3491 | /* FIXME handle other migrations */ | |
3492 | default: | |
3493 | /* we are not dirty, so... */ | |
3494 | info->resync_start = MaxSector; | |
3495 | } | |
b6796ce1 | 3496 | } |
301406c9 DW |
3497 | |
3498 | strncpy(info->name, (char *) dev->volume, MAX_RAID_SERIAL_LEN); | |
3499 | info->name[MAX_RAID_SERIAL_LEN] = 0; | |
bf5a934a | 3500 | |
f35f2525 N |
3501 | info->array.major_version = -1; |
3502 | info->array.minor_version = -2; | |
4dd2df09 | 3503 | sprintf(info->text_version, "/%s/%d", st->container_devnm, info->container_member); |
a67dd8cc | 3504 | info->safe_mode_delay = 4000; /* 4 secs like the Matrix driver */ |
51006d85 | 3505 | uuid_from_super_imsm(st, info->uuid); |
a5d85af7 N |
3506 | |
3507 | if (dmap) { | |
3508 | int i, j; | |
3509 | for (i=0; i<map_disks; i++) { | |
3510 | dmap[i] = 0; | |
3511 | if (i < info->array.raid_disks) { | |
3512 | struct imsm_disk *dsk; | |
238c0a71 | 3513 | j = get_imsm_disk_idx(dev, i, MAP_X); |
a5d85af7 N |
3514 | dsk = get_imsm_disk(super, j); |
3515 | if (dsk && (dsk->status & CONFIGURED_DISK)) | |
3516 | dmap[i] = 1; | |
3517 | } | |
3518 | } | |
3519 | } | |
81ac8b4d | 3520 | } |
bf5a934a | 3521 | |
3b451610 AK |
3522 | static __u8 imsm_check_degraded(struct intel_super *super, struct imsm_dev *dev, |
3523 | int failed, int look_in_map); | |
3524 | ||
3525 | static int imsm_count_failed(struct intel_super *super, struct imsm_dev *dev, | |
3526 | int look_in_map); | |
3527 | ||
3528 | static void manage_second_map(struct intel_super *super, struct imsm_dev *dev) | |
3529 | { | |
3530 | if (is_gen_migration(dev)) { | |
3531 | int failed; | |
3532 | __u8 map_state; | |
3533 | struct imsm_map *map2 = get_imsm_map(dev, MAP_1); | |
3534 | ||
3535 | failed = imsm_count_failed(super, dev, MAP_1); | |
238c0a71 | 3536 | map_state = imsm_check_degraded(super, dev, failed, MAP_1); |
3b451610 AK |
3537 | if (map2->map_state != map_state) { |
3538 | map2->map_state = map_state; | |
3539 | super->updates_pending++; | |
3540 | } | |
3541 | } | |
3542 | } | |
97b4d0e9 DW |
3543 | |
3544 | static struct imsm_disk *get_imsm_missing(struct intel_super *super, __u8 index) | |
3545 | { | |
3546 | struct dl *d; | |
3547 | ||
3548 | for (d = super->missing; d; d = d->next) | |
3549 | if (d->index == index) | |
3550 | return &d->disk; | |
3551 | return NULL; | |
3552 | } | |
3553 | ||
a5d85af7 | 3554 | static void getinfo_super_imsm(struct supertype *st, struct mdinfo *info, char *map) |
4f5bc454 DW |
3555 | { |
3556 | struct intel_super *super = st->sb; | |
4f5bc454 | 3557 | struct imsm_disk *disk; |
a5d85af7 | 3558 | int map_disks = info->array.raid_disks; |
ab3cb6b3 N |
3559 | int max_enough = -1; |
3560 | int i; | |
3561 | struct imsm_super *mpb; | |
4f5bc454 | 3562 | |
bf5a934a | 3563 | if (super->current_vol >= 0) { |
a5d85af7 | 3564 | getinfo_super_imsm_volume(st, info, map); |
bf5a934a DW |
3565 | return; |
3566 | } | |
95eeceeb | 3567 | memset(info, 0, sizeof(*info)); |
d23fe947 DW |
3568 | |
3569 | /* Set raid_disks to zero so that Assemble will always pull in valid | |
3570 | * spares | |
3571 | */ | |
3572 | info->array.raid_disks = 0; | |
cdddbdbc DW |
3573 | info->array.level = LEVEL_CONTAINER; |
3574 | info->array.layout = 0; | |
3575 | info->array.md_minor = -1; | |
1011e834 | 3576 | info->array.ctime = 0; /* N/A for imsm */ |
cdddbdbc DW |
3577 | info->array.utime = 0; |
3578 | info->array.chunk_size = 0; | |
3579 | ||
3580 | info->disk.major = 0; | |
3581 | info->disk.minor = 0; | |
cdddbdbc | 3582 | info->disk.raid_disk = -1; |
c2c087e6 | 3583 | info->reshape_active = 0; |
f35f2525 N |
3584 | info->array.major_version = -1; |
3585 | info->array.minor_version = -2; | |
c2c087e6 | 3586 | strcpy(info->text_version, "imsm"); |
a67dd8cc | 3587 | info->safe_mode_delay = 0; |
c2c087e6 DW |
3588 | info->disk.number = -1; |
3589 | info->disk.state = 0; | |
c5afc314 | 3590 | info->name[0] = 0; |
921d9e16 | 3591 | info->recovery_start = MaxSector; |
3ad25638 | 3592 | info->recovery_blocked = imsm_reshape_blocks_arrays_changes(st->sb); |
5e46202e | 3593 | info->bb.supported = 1; |
c2c087e6 | 3594 | |
97b4d0e9 | 3595 | /* do we have the all the insync disks that we expect? */ |
ab3cb6b3 | 3596 | mpb = super->anchor; |
b7d81a38 | 3597 | info->events = __le32_to_cpu(mpb->generation_num); |
97b4d0e9 | 3598 | |
ab3cb6b3 N |
3599 | for (i = 0; i < mpb->num_raid_devs; i++) { |
3600 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
3601 | int failed, enough, j, missing = 0; | |
3602 | struct imsm_map *map; | |
3603 | __u8 state; | |
97b4d0e9 | 3604 | |
3b451610 AK |
3605 | failed = imsm_count_failed(super, dev, MAP_0); |
3606 | state = imsm_check_degraded(super, dev, failed, MAP_0); | |
238c0a71 | 3607 | map = get_imsm_map(dev, MAP_0); |
ab3cb6b3 N |
3608 | |
3609 | /* any newly missing disks? | |
3610 | * (catches single-degraded vs double-degraded) | |
3611 | */ | |
3612 | for (j = 0; j < map->num_members; j++) { | |
238c0a71 | 3613 | __u32 ord = get_imsm_ord_tbl_ent(dev, j, MAP_0); |
ab3cb6b3 N |
3614 | __u32 idx = ord_to_idx(ord); |
3615 | ||
20dc76d1 MT |
3616 | if (super->disks && super->disks->index == (int)idx) |
3617 | info->disk.raid_disk = j; | |
3618 | ||
ab3cb6b3 N |
3619 | if (!(ord & IMSM_ORD_REBUILD) && |
3620 | get_imsm_missing(super, idx)) { | |
3621 | missing = 1; | |
3622 | break; | |
3623 | } | |
97b4d0e9 | 3624 | } |
ab3cb6b3 N |
3625 | |
3626 | if (state == IMSM_T_STATE_FAILED) | |
3627 | enough = -1; | |
3628 | else if (state == IMSM_T_STATE_DEGRADED && | |
3629 | (state != map->map_state || missing)) | |
3630 | enough = 0; | |
3631 | else /* we're normal, or already degraded */ | |
3632 | enough = 1; | |
d2bde6d3 AK |
3633 | if (is_gen_migration(dev) && missing) { |
3634 | /* during general migration we need all disks | |
3635 | * that process is running on. | |
3636 | * No new missing disk is allowed. | |
3637 | */ | |
3638 | max_enough = -1; | |
3639 | enough = -1; | |
3640 | /* no more checks necessary | |
3641 | */ | |
3642 | break; | |
3643 | } | |
ab3cb6b3 N |
3644 | /* in the missing/failed disk case check to see |
3645 | * if at least one array is runnable | |
3646 | */ | |
3647 | max_enough = max(max_enough, enough); | |
3648 | } | |
1ade5cc1 | 3649 | dprintf("enough: %d\n", max_enough); |
ab3cb6b3 | 3650 | info->container_enough = max_enough; |
97b4d0e9 | 3651 | |
4a04ec6c | 3652 | if (super->disks) { |
14e8215b DW |
3653 | __u32 reserved = imsm_reserved_sectors(super, super->disks); |
3654 | ||
b9f594fe | 3655 | disk = &super->disks->disk; |
5551b113 | 3656 | info->data_offset = total_blocks(&super->disks->disk) - reserved; |
14e8215b | 3657 | info->component_size = reserved; |
25ed7e59 | 3658 | info->disk.state = is_configured(disk) ? (1 << MD_DISK_ACTIVE) : 0; |
df474657 DW |
3659 | /* we don't change info->disk.raid_disk here because |
3660 | * this state will be finalized in mdmon after we have | |
3661 | * found the 'most fresh' version of the metadata | |
3662 | */ | |
25ed7e59 | 3663 | info->disk.state |= is_failed(disk) ? (1 << MD_DISK_FAULTY) : 0; |
2432ce9b AP |
3664 | info->disk.state |= (is_spare(disk) || is_journal(disk)) ? |
3665 | 0 : (1 << MD_DISK_SYNC); | |
cdddbdbc | 3666 | } |
a575e2a7 DW |
3667 | |
3668 | /* only call uuid_from_super_imsm when this disk is part of a populated container, | |
3669 | * ->compare_super may have updated the 'num_raid_devs' field for spares | |
3670 | */ | |
3671 | if (info->disk.state & (1 << MD_DISK_SYNC) || super->anchor->num_raid_devs) | |
36ba7d48 | 3672 | uuid_from_super_imsm(st, info->uuid); |
22e263f6 AC |
3673 | else |
3674 | memcpy(info->uuid, uuid_zero, sizeof(uuid_zero)); | |
a5d85af7 N |
3675 | |
3676 | /* I don't know how to compute 'map' on imsm, so use safe default */ | |
3677 | if (map) { | |
3678 | int i; | |
3679 | for (i = 0; i < map_disks; i++) | |
3680 | map[i] = 1; | |
3681 | } | |
3682 | ||
cdddbdbc DW |
3683 | } |
3684 | ||
5c4cd5da AC |
3685 | /* allocates memory and fills disk in mdinfo structure |
3686 | * for each disk in array */ | |
3687 | struct mdinfo *getinfo_super_disks_imsm(struct supertype *st) | |
3688 | { | |
594dc1b8 | 3689 | struct mdinfo *mddev; |
5c4cd5da AC |
3690 | struct intel_super *super = st->sb; |
3691 | struct imsm_disk *disk; | |
3692 | int count = 0; | |
3693 | struct dl *dl; | |
3694 | if (!super || !super->disks) | |
3695 | return NULL; | |
3696 | dl = super->disks; | |
503975b9 | 3697 | mddev = xcalloc(1, sizeof(*mddev)); |
5c4cd5da AC |
3698 | while (dl) { |
3699 | struct mdinfo *tmp; | |
3700 | disk = &dl->disk; | |
503975b9 | 3701 | tmp = xcalloc(1, sizeof(*tmp)); |
5c4cd5da AC |
3702 | if (mddev->devs) |
3703 | tmp->next = mddev->devs; | |
3704 | mddev->devs = tmp; | |
3705 | tmp->disk.number = count++; | |
3706 | tmp->disk.major = dl->major; | |
3707 | tmp->disk.minor = dl->minor; | |
3708 | tmp->disk.state = is_configured(disk) ? | |
3709 | (1 << MD_DISK_ACTIVE) : 0; | |
3710 | tmp->disk.state |= is_failed(disk) ? (1 << MD_DISK_FAULTY) : 0; | |
3711 | tmp->disk.state |= is_spare(disk) ? 0 : (1 << MD_DISK_SYNC); | |
3712 | tmp->disk.raid_disk = -1; | |
3713 | dl = dl->next; | |
3714 | } | |
3715 | return mddev; | |
3716 | } | |
3717 | ||
cdddbdbc DW |
3718 | static int update_super_imsm(struct supertype *st, struct mdinfo *info, |
3719 | char *update, char *devname, int verbose, | |
3720 | int uuid_set, char *homehost) | |
3721 | { | |
f352c545 DW |
3722 | /* For 'assemble' and 'force' we need to return non-zero if any |
3723 | * change was made. For others, the return value is ignored. | |
3724 | * Update options are: | |
3725 | * force-one : This device looks a bit old but needs to be included, | |
3726 | * update age info appropriately. | |
3727 | * assemble: clear any 'faulty' flag to allow this device to | |
3728 | * be assembled. | |
3729 | * force-array: Array is degraded but being forced, mark it clean | |
3730 | * if that will be needed to assemble it. | |
3731 | * | |
3732 | * newdev: not used ???? | |
3733 | * grow: Array has gained a new device - this is currently for | |
3734 | * linear only | |
3735 | * resync: mark as dirty so a resync will happen. | |
3736 | * name: update the name - preserving the homehost | |
6e46bf34 | 3737 | * uuid: Change the uuid of the array to match watch is given |
f352c545 DW |
3738 | * |
3739 | * Following are not relevant for this imsm: | |
3740 | * sparc2.2 : update from old dodgey metadata | |
3741 | * super-minor: change the preferred_minor number | |
3742 | * summaries: update redundant counters. | |
f352c545 DW |
3743 | * homehost: update the recorded homehost |
3744 | * _reshape_progress: record new reshape_progress position. | |
3745 | */ | |
6e46bf34 DW |
3746 | int rv = 1; |
3747 | struct intel_super *super = st->sb; | |
3748 | struct imsm_super *mpb; | |
f352c545 | 3749 | |
6e46bf34 DW |
3750 | /* we can only update container info */ |
3751 | if (!super || super->current_vol >= 0 || !super->anchor) | |
3752 | return 1; | |
3753 | ||
3754 | mpb = super->anchor; | |
3755 | ||
81a5b4f5 N |
3756 | if (strcmp(update, "uuid") == 0) { |
3757 | /* We take this to mean that the family_num should be updated. | |
3758 | * However that is much smaller than the uuid so we cannot really | |
3759 | * allow an explicit uuid to be given. And it is hard to reliably | |
3760 | * know if one was. | |
3761 | * So if !uuid_set we know the current uuid is random and just used | |
3762 | * the first 'int' and copy it to the other 3 positions. | |
3763 | * Otherwise we require the 4 'int's to be the same as would be the | |
3764 | * case if we are using a random uuid. So an explicit uuid will be | |
3765 | * accepted as long as all for ints are the same... which shouldn't hurt | |
6e46bf34 | 3766 | */ |
81a5b4f5 N |
3767 | if (!uuid_set) { |
3768 | info->uuid[1] = info->uuid[2] = info->uuid[3] = info->uuid[0]; | |
6e46bf34 | 3769 | rv = 0; |
81a5b4f5 N |
3770 | } else { |
3771 | if (info->uuid[0] != info->uuid[1] || | |
3772 | info->uuid[1] != info->uuid[2] || | |
3773 | info->uuid[2] != info->uuid[3]) | |
3774 | rv = -1; | |
3775 | else | |
3776 | rv = 0; | |
6e46bf34 | 3777 | } |
81a5b4f5 N |
3778 | if (rv == 0) |
3779 | mpb->orig_family_num = info->uuid[0]; | |
6e46bf34 DW |
3780 | } else if (strcmp(update, "assemble") == 0) |
3781 | rv = 0; | |
3782 | else | |
1e2b2765 | 3783 | rv = -1; |
f352c545 | 3784 | |
6e46bf34 DW |
3785 | /* successful update? recompute checksum */ |
3786 | if (rv == 0) | |
3787 | mpb->check_sum = __le32_to_cpu(__gen_imsm_checksum(mpb)); | |
f352c545 DW |
3788 | |
3789 | return rv; | |
cdddbdbc DW |
3790 | } |
3791 | ||
c2c087e6 | 3792 | static size_t disks_to_mpb_size(int disks) |
cdddbdbc | 3793 | { |
c2c087e6 | 3794 | size_t size; |
cdddbdbc | 3795 | |
c2c087e6 DW |
3796 | size = sizeof(struct imsm_super); |
3797 | size += (disks - 1) * sizeof(struct imsm_disk); | |
3798 | size += 2 * sizeof(struct imsm_dev); | |
3799 | /* up to 2 maps per raid device (-2 for imsm_maps in imsm_dev */ | |
3800 | size += (4 - 2) * sizeof(struct imsm_map); | |
3801 | /* 4 possible disk_ord_tbl's */ | |
3802 | size += 4 * (disks - 1) * sizeof(__u32); | |
bbab0940 TM |
3803 | /* maximum bbm log */ |
3804 | size += sizeof(struct bbm_log); | |
c2c087e6 DW |
3805 | |
3806 | return size; | |
3807 | } | |
3808 | ||
387fcd59 N |
3809 | static __u64 avail_size_imsm(struct supertype *st, __u64 devsize, |
3810 | unsigned long long data_offset) | |
c2c087e6 DW |
3811 | { |
3812 | if (devsize < (MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS)) | |
3813 | return 0; | |
3814 | ||
3815 | return devsize - (MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS); | |
cdddbdbc DW |
3816 | } |
3817 | ||
ba2de7ba DW |
3818 | static void free_devlist(struct intel_super *super) |
3819 | { | |
3820 | struct intel_dev *dv; | |
3821 | ||
3822 | while (super->devlist) { | |
3823 | dv = super->devlist->next; | |
3824 | free(super->devlist->dev); | |
3825 | free(super->devlist); | |
3826 | super->devlist = dv; | |
3827 | } | |
3828 | } | |
3829 | ||
3830 | static void imsm_copy_dev(struct imsm_dev *dest, struct imsm_dev *src) | |
3831 | { | |
3832 | memcpy(dest, src, sizeof_imsm_dev(src, 0)); | |
3833 | } | |
3834 | ||
cdddbdbc DW |
3835 | static int compare_super_imsm(struct supertype *st, struct supertype *tst) |
3836 | { | |
3837 | /* | |
3838 | * return: | |
3839 | * 0 same, or first was empty, and second was copied | |
3840 | * 1 second had wrong number | |
3841 | * 2 wrong uuid | |
3842 | * 3 wrong other info | |
3843 | */ | |
3844 | struct intel_super *first = st->sb; | |
3845 | struct intel_super *sec = tst->sb; | |
3846 | ||
5d500228 N |
3847 | if (!first) { |
3848 | st->sb = tst->sb; | |
3849 | tst->sb = NULL; | |
3850 | return 0; | |
3851 | } | |
8603ea6f LM |
3852 | /* in platform dependent environment test if the disks |
3853 | * use the same Intel hba | |
cb8f6859 | 3854 | * If not on Intel hba at all, allow anything. |
8603ea6f | 3855 | */ |
6b781d33 AP |
3856 | if (!check_env("IMSM_NO_PLATFORM") && first->hba && sec->hba) { |
3857 | if (first->hba->type != sec->hba->type) { | |
8603ea6f | 3858 | fprintf(stderr, |
6b781d33 AP |
3859 | "HBAs of devices do not match %s != %s\n", |
3860 | get_sys_dev_type(first->hba->type), | |
3861 | get_sys_dev_type(sec->hba->type)); | |
3862 | return 3; | |
3863 | } | |
3864 | if (first->orom != sec->orom) { | |
3865 | fprintf(stderr, | |
3866 | "HBAs of devices do not match %s != %s\n", | |
3867 | first->hba->pci_id, sec->hba->pci_id); | |
8603ea6f LM |
3868 | return 3; |
3869 | } | |
3870 | } | |
cdddbdbc | 3871 | |
d23fe947 DW |
3872 | /* if an anchor does not have num_raid_devs set then it is a free |
3873 | * floating spare | |
3874 | */ | |
3875 | if (first->anchor->num_raid_devs > 0 && | |
3876 | sec->anchor->num_raid_devs > 0) { | |
a2b97981 DW |
3877 | /* Determine if these disks might ever have been |
3878 | * related. Further disambiguation can only take place | |
3879 | * in load_super_imsm_all | |
3880 | */ | |
3881 | __u32 first_family = first->anchor->orig_family_num; | |
3882 | __u32 sec_family = sec->anchor->orig_family_num; | |
3883 | ||
f796af5d DW |
3884 | if (memcmp(first->anchor->sig, sec->anchor->sig, |
3885 | MAX_SIGNATURE_LENGTH) != 0) | |
3886 | return 3; | |
3887 | ||
a2b97981 DW |
3888 | if (first_family == 0) |
3889 | first_family = first->anchor->family_num; | |
3890 | if (sec_family == 0) | |
3891 | sec_family = sec->anchor->family_num; | |
3892 | ||
3893 | if (first_family != sec_family) | |
d23fe947 | 3894 | return 3; |
f796af5d | 3895 | |
d23fe947 | 3896 | } |
cdddbdbc | 3897 | |
3e372e5a DW |
3898 | /* if 'first' is a spare promote it to a populated mpb with sec's |
3899 | * family number | |
3900 | */ | |
3901 | if (first->anchor->num_raid_devs == 0 && | |
3902 | sec->anchor->num_raid_devs > 0) { | |
78d30f94 | 3903 | int i; |
ba2de7ba DW |
3904 | struct intel_dev *dv; |
3905 | struct imsm_dev *dev; | |
78d30f94 DW |
3906 | |
3907 | /* we need to copy raid device info from sec if an allocation | |
3908 | * fails here we don't associate the spare | |
3909 | */ | |
3910 | for (i = 0; i < sec->anchor->num_raid_devs; i++) { | |
503975b9 N |
3911 | dv = xmalloc(sizeof(*dv)); |
3912 | dev = xmalloc(sizeof_imsm_dev(get_imsm_dev(sec, i), 1)); | |
ba2de7ba DW |
3913 | dv->dev = dev; |
3914 | dv->index = i; | |
3915 | dv->next = first->devlist; | |
3916 | first->devlist = dv; | |
78d30f94 | 3917 | } |
709743c5 | 3918 | if (i < sec->anchor->num_raid_devs) { |
ba2de7ba DW |
3919 | /* allocation failure */ |
3920 | free_devlist(first); | |
e12b3daa | 3921 | pr_err("imsm: failed to associate spare\n"); |
ba2de7ba | 3922 | return 3; |
78d30f94 | 3923 | } |
3e372e5a | 3924 | first->anchor->num_raid_devs = sec->anchor->num_raid_devs; |
148acb7b | 3925 | first->anchor->orig_family_num = sec->anchor->orig_family_num; |
3e372e5a | 3926 | first->anchor->family_num = sec->anchor->family_num; |
ac6449be | 3927 | memcpy(first->anchor->sig, sec->anchor->sig, MAX_SIGNATURE_LENGTH); |
709743c5 DW |
3928 | for (i = 0; i < sec->anchor->num_raid_devs; i++) |
3929 | imsm_copy_dev(get_imsm_dev(first, i), get_imsm_dev(sec, i)); | |
3e372e5a DW |
3930 | } |
3931 | ||
cdddbdbc DW |
3932 | return 0; |
3933 | } | |
3934 | ||
0030e8d6 DW |
3935 | static void fd2devname(int fd, char *name) |
3936 | { | |
3937 | struct stat st; | |
3938 | char path[256]; | |
33a6535d | 3939 | char dname[PATH_MAX]; |
0030e8d6 DW |
3940 | char *nm; |
3941 | int rv; | |
3942 | ||
3943 | name[0] = '\0'; | |
3944 | if (fstat(fd, &st) != 0) | |
3945 | return; | |
3946 | sprintf(path, "/sys/dev/block/%d:%d", | |
3947 | major(st.st_rdev), minor(st.st_rdev)); | |
3948 | ||
9cf014ec | 3949 | rv = readlink(path, dname, sizeof(dname)-1); |
0030e8d6 DW |
3950 | if (rv <= 0) |
3951 | return; | |
9587c373 | 3952 | |
0030e8d6 DW |
3953 | dname[rv] = '\0'; |
3954 | nm = strrchr(dname, '/'); | |
7897de29 JS |
3955 | if (nm) { |
3956 | nm++; | |
3957 | snprintf(name, MAX_RAID_SERIAL_LEN, "/dev/%s", nm); | |
3958 | } | |
0030e8d6 DW |
3959 | } |
3960 | ||
21e9380b AP |
3961 | static int nvme_get_serial(int fd, void *buf, size_t buf_len) |
3962 | { | |
3963 | char path[60]; | |
3964 | char *name = fd2kname(fd); | |
3965 | ||
3966 | if (!name) | |
3967 | return 1; | |
3968 | ||
3969 | if (strncmp(name, "nvme", 4) != 0) | |
3970 | return 1; | |
3971 | ||
3972 | snprintf(path, sizeof(path) - 1, "/sys/block/%s/device/serial", name); | |
3973 | ||
3974 | return load_sys(path, buf, buf_len); | |
3975 | } | |
3976 | ||
cdddbdbc DW |
3977 | extern int scsi_get_serial(int fd, void *buf, size_t buf_len); |
3978 | ||
3979 | static int imsm_read_serial(int fd, char *devname, | |
6da53c0e | 3980 | __u8 *serial, size_t serial_buf_len) |
cdddbdbc | 3981 | { |
21e9380b | 3982 | char buf[50]; |
cdddbdbc | 3983 | int rv; |
6da53c0e | 3984 | size_t len; |
316e2bf4 DW |
3985 | char *dest; |
3986 | char *src; | |
21e9380b AP |
3987 | unsigned int i; |
3988 | ||
3989 | memset(buf, 0, sizeof(buf)); | |
cdddbdbc | 3990 | |
21e9380b | 3991 | rv = nvme_get_serial(fd, buf, sizeof(buf)); |
cdddbdbc | 3992 | |
21e9380b AP |
3993 | if (rv) |
3994 | rv = scsi_get_serial(fd, buf, sizeof(buf)); | |
f9ba0ff1 | 3995 | |
40ebbb9c | 3996 | if (rv && check_env("IMSM_DEVNAME_AS_SERIAL")) { |
f9ba0ff1 DW |
3997 | memset(serial, 0, MAX_RAID_SERIAL_LEN); |
3998 | fd2devname(fd, (char *) serial); | |
0030e8d6 DW |
3999 | return 0; |
4000 | } | |
4001 | ||
cdddbdbc DW |
4002 | if (rv != 0) { |
4003 | if (devname) | |
e7b84f9d N |
4004 | pr_err("Failed to retrieve serial for %s\n", |
4005 | devname); | |
cdddbdbc DW |
4006 | return rv; |
4007 | } | |
4008 | ||
316e2bf4 DW |
4009 | /* trim all whitespace and non-printable characters and convert |
4010 | * ':' to ';' | |
4011 | */ | |
21e9380b AP |
4012 | for (i = 0, dest = buf; i < sizeof(buf) && buf[i]; i++) { |
4013 | src = &buf[i]; | |
316e2bf4 DW |
4014 | if (*src > 0x20) { |
4015 | /* ':' is reserved for use in placeholder serial | |
4016 | * numbers for missing disks | |
4017 | */ | |
4018 | if (*src == ':') | |
4019 | *dest++ = ';'; | |
4020 | else | |
4021 | *dest++ = *src; | |
4022 | } | |
4023 | } | |
21e9380b AP |
4024 | len = dest - buf; |
4025 | dest = buf; | |
316e2bf4 | 4026 | |
6da53c0e BK |
4027 | if (len > serial_buf_len) { |
4028 | /* truncate leading characters */ | |
4029 | dest += len - serial_buf_len; | |
4030 | len = serial_buf_len; | |
316e2bf4 | 4031 | } |
5c3db629 | 4032 | |
6da53c0e | 4033 | memset(serial, 0, serial_buf_len); |
316e2bf4 | 4034 | memcpy(serial, dest, len); |
cdddbdbc DW |
4035 | |
4036 | return 0; | |
4037 | } | |
4038 | ||
1f24f035 DW |
4039 | static int serialcmp(__u8 *s1, __u8 *s2) |
4040 | { | |
4041 | return strncmp((char *) s1, (char *) s2, MAX_RAID_SERIAL_LEN); | |
4042 | } | |
4043 | ||
4044 | static void serialcpy(__u8 *dest, __u8 *src) | |
4045 | { | |
4046 | strncpy((char *) dest, (char *) src, MAX_RAID_SERIAL_LEN); | |
4047 | } | |
4048 | ||
54c2c1ea DW |
4049 | static struct dl *serial_to_dl(__u8 *serial, struct intel_super *super) |
4050 | { | |
4051 | struct dl *dl; | |
4052 | ||
4053 | for (dl = super->disks; dl; dl = dl->next) | |
4054 | if (serialcmp(dl->serial, serial) == 0) | |
4055 | break; | |
4056 | ||
4057 | return dl; | |
4058 | } | |
4059 | ||
a2b97981 DW |
4060 | static struct imsm_disk * |
4061 | __serial_to_disk(__u8 *serial, struct imsm_super *mpb, int *idx) | |
4062 | { | |
4063 | int i; | |
4064 | ||
4065 | for (i = 0; i < mpb->num_disks; i++) { | |
4066 | struct imsm_disk *disk = __get_imsm_disk(mpb, i); | |
4067 | ||
4068 | if (serialcmp(disk->serial, serial) == 0) { | |
4069 | if (idx) | |
4070 | *idx = i; | |
4071 | return disk; | |
4072 | } | |
4073 | } | |
4074 | ||
4075 | return NULL; | |
4076 | } | |
4077 | ||
cdddbdbc DW |
4078 | static int |
4079 | load_imsm_disk(int fd, struct intel_super *super, char *devname, int keep_fd) | |
4080 | { | |
a2b97981 | 4081 | struct imsm_disk *disk; |
cdddbdbc DW |
4082 | struct dl *dl; |
4083 | struct stat stb; | |
cdddbdbc | 4084 | int rv; |
a2b97981 | 4085 | char name[40]; |
d23fe947 DW |
4086 | __u8 serial[MAX_RAID_SERIAL_LEN]; |
4087 | ||
6da53c0e | 4088 | rv = imsm_read_serial(fd, devname, serial, MAX_RAID_SERIAL_LEN); |
d23fe947 DW |
4089 | |
4090 | if (rv != 0) | |
4091 | return 2; | |
4092 | ||
503975b9 | 4093 | dl = xcalloc(1, sizeof(*dl)); |
cdddbdbc | 4094 | |
a2b97981 DW |
4095 | fstat(fd, &stb); |
4096 | dl->major = major(stb.st_rdev); | |
4097 | dl->minor = minor(stb.st_rdev); | |
4098 | dl->next = super->disks; | |
4099 | dl->fd = keep_fd ? fd : -1; | |
4100 | assert(super->disks == NULL); | |
4101 | super->disks = dl; | |
4102 | serialcpy(dl->serial, serial); | |
4103 | dl->index = -2; | |
4104 | dl->e = NULL; | |
4105 | fd2devname(fd, name); | |
4106 | if (devname) | |
503975b9 | 4107 | dl->devname = xstrdup(devname); |
a2b97981 | 4108 | else |
503975b9 | 4109 | dl->devname = xstrdup(name); |
cdddbdbc | 4110 | |
d23fe947 | 4111 | /* look up this disk's index in the current anchor */ |
a2b97981 DW |
4112 | disk = __serial_to_disk(dl->serial, super->anchor, &dl->index); |
4113 | if (disk) { | |
4114 | dl->disk = *disk; | |
4115 | /* only set index on disks that are a member of a | |
4116 | * populated contianer, i.e. one with raid_devs | |
4117 | */ | |
4118 | if (is_failed(&dl->disk)) | |
3f6efecc | 4119 | dl->index = -2; |
2432ce9b | 4120 | else if (is_spare(&dl->disk) || is_journal(&dl->disk)) |
a2b97981 | 4121 | dl->index = -1; |
3f6efecc DW |
4122 | } |
4123 | ||
949c47a0 DW |
4124 | return 0; |
4125 | } | |
4126 | ||
0c046afd DW |
4127 | /* When migrating map0 contains the 'destination' state while map1 |
4128 | * contains the current state. When not migrating map0 contains the | |
4129 | * current state. This routine assumes that map[0].map_state is set to | |
4130 | * the current array state before being called. | |
4131 | * | |
4132 | * Migration is indicated by one of the following states | |
4133 | * 1/ Idle (migr_state=0 map0state=normal||unitialized||degraded||failed) | |
e3bba0e0 | 4134 | * 2/ Initialize (migr_state=1 migr_type=MIGR_INIT map0state=normal |
0c046afd | 4135 | * map1state=unitialized) |
1484e727 | 4136 | * 3/ Repair (Resync) (migr_state=1 migr_type=MIGR_REPAIR map0state=normal |
0c046afd | 4137 | * map1state=normal) |
e3bba0e0 | 4138 | * 4/ Rebuild (migr_state=1 migr_type=MIGR_REBUILD map0state=normal |
0c046afd | 4139 | * map1state=degraded) |
8e59f3d8 AK |
4140 | * 5/ Migration (mig_state=1 migr_type=MIGR_GEN_MIGR map0state=normal |
4141 | * map1state=normal) | |
0c046afd | 4142 | */ |
8e59f3d8 AK |
4143 | static void migrate(struct imsm_dev *dev, struct intel_super *super, |
4144 | __u8 to_state, int migr_type) | |
3393c6af | 4145 | { |
0c046afd | 4146 | struct imsm_map *dest; |
238c0a71 | 4147 | struct imsm_map *src = get_imsm_map(dev, MAP_0); |
3393c6af | 4148 | |
0c046afd | 4149 | dev->vol.migr_state = 1; |
1484e727 | 4150 | set_migr_type(dev, migr_type); |
f8f603f1 | 4151 | dev->vol.curr_migr_unit = 0; |
238c0a71 | 4152 | dest = get_imsm_map(dev, MAP_1); |
0c046afd | 4153 | |
0556e1a2 | 4154 | /* duplicate and then set the target end state in map[0] */ |
3393c6af | 4155 | memcpy(dest, src, sizeof_imsm_map(src)); |
fb12a745 | 4156 | if (migr_type == MIGR_GEN_MIGR) { |
0556e1a2 DW |
4157 | __u32 ord; |
4158 | int i; | |
4159 | ||
4160 | for (i = 0; i < src->num_members; i++) { | |
4161 | ord = __le32_to_cpu(src->disk_ord_tbl[i]); | |
4162 | set_imsm_ord_tbl_ent(src, i, ord_to_idx(ord)); | |
4163 | } | |
4164 | } | |
4165 | ||
8e59f3d8 AK |
4166 | if (migr_type == MIGR_GEN_MIGR) |
4167 | /* Clear migration record */ | |
4168 | memset(super->migr_rec, 0, sizeof(struct migr_record)); | |
4169 | ||
0c046afd | 4170 | src->map_state = to_state; |
949c47a0 | 4171 | } |
f8f603f1 | 4172 | |
809da78e AK |
4173 | static void end_migration(struct imsm_dev *dev, struct intel_super *super, |
4174 | __u8 map_state) | |
f8f603f1 | 4175 | { |
238c0a71 AK |
4176 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
4177 | struct imsm_map *prev = get_imsm_map(dev, dev->vol.migr_state == 0 ? | |
4178 | MAP_0 : MAP_1); | |
28bce06f | 4179 | int i, j; |
0556e1a2 DW |
4180 | |
4181 | /* merge any IMSM_ORD_REBUILD bits that were not successfully | |
4182 | * completed in the last migration. | |
4183 | * | |
28bce06f | 4184 | * FIXME add support for raid-level-migration |
0556e1a2 | 4185 | */ |
089f9d79 JS |
4186 | if (map_state != map->map_state && (is_gen_migration(dev) == 0) && |
4187 | prev->map_state != IMSM_T_STATE_UNINITIALIZED) { | |
809da78e AK |
4188 | /* when final map state is other than expected |
4189 | * merge maps (not for migration) | |
4190 | */ | |
4191 | int failed; | |
4192 | ||
4193 | for (i = 0; i < prev->num_members; i++) | |
4194 | for (j = 0; j < map->num_members; j++) | |
4195 | /* during online capacity expansion | |
4196 | * disks position can be changed | |
4197 | * if takeover is used | |
4198 | */ | |
4199 | if (ord_to_idx(map->disk_ord_tbl[j]) == | |
4200 | ord_to_idx(prev->disk_ord_tbl[i])) { | |
4201 | map->disk_ord_tbl[j] |= | |
4202 | prev->disk_ord_tbl[i]; | |
4203 | break; | |
4204 | } | |
4205 | failed = imsm_count_failed(super, dev, MAP_0); | |
4206 | map_state = imsm_check_degraded(super, dev, failed, MAP_0); | |
4207 | } | |
f8f603f1 DW |
4208 | |
4209 | dev->vol.migr_state = 0; | |
ea672ee1 | 4210 | set_migr_type(dev, 0); |
f8f603f1 DW |
4211 | dev->vol.curr_migr_unit = 0; |
4212 | map->map_state = map_state; | |
4213 | } | |
949c47a0 DW |
4214 | |
4215 | static int parse_raid_devices(struct intel_super *super) | |
4216 | { | |
4217 | int i; | |
4218 | struct imsm_dev *dev_new; | |
4d7b1503 | 4219 | size_t len, len_migr; |
401d313b | 4220 | size_t max_len = 0; |
4d7b1503 DW |
4221 | size_t space_needed = 0; |
4222 | struct imsm_super *mpb = super->anchor; | |
949c47a0 DW |
4223 | |
4224 | for (i = 0; i < super->anchor->num_raid_devs; i++) { | |
4225 | struct imsm_dev *dev_iter = __get_imsm_dev(super->anchor, i); | |
ba2de7ba | 4226 | struct intel_dev *dv; |
949c47a0 | 4227 | |
4d7b1503 DW |
4228 | len = sizeof_imsm_dev(dev_iter, 0); |
4229 | len_migr = sizeof_imsm_dev(dev_iter, 1); | |
4230 | if (len_migr > len) | |
4231 | space_needed += len_migr - len; | |
ca9de185 | 4232 | |
503975b9 | 4233 | dv = xmalloc(sizeof(*dv)); |
401d313b AK |
4234 | if (max_len < len_migr) |
4235 | max_len = len_migr; | |
4236 | if (max_len > len_migr) | |
4237 | space_needed += max_len - len_migr; | |
503975b9 | 4238 | dev_new = xmalloc(max_len); |
949c47a0 | 4239 | imsm_copy_dev(dev_new, dev_iter); |
ba2de7ba DW |
4240 | dv->dev = dev_new; |
4241 | dv->index = i; | |
4242 | dv->next = super->devlist; | |
4243 | super->devlist = dv; | |
949c47a0 | 4244 | } |
cdddbdbc | 4245 | |
4d7b1503 DW |
4246 | /* ensure that super->buf is large enough when all raid devices |
4247 | * are migrating | |
4248 | */ | |
4249 | if (__le32_to_cpu(mpb->mpb_size) + space_needed > super->len) { | |
4250 | void *buf; | |
4251 | ||
f36a9ecd PB |
4252 | len = ROUND_UP(__le32_to_cpu(mpb->mpb_size) + space_needed, |
4253 | super->sector_size); | |
4254 | if (posix_memalign(&buf, MAX_SECTOR_SIZE, len) != 0) | |
4d7b1503 DW |
4255 | return 1; |
4256 | ||
1f45a8ad DW |
4257 | memcpy(buf, super->buf, super->len); |
4258 | memset(buf + super->len, 0, len - super->len); | |
4d7b1503 DW |
4259 | free(super->buf); |
4260 | super->buf = buf; | |
4261 | super->len = len; | |
4262 | } | |
ca9de185 | 4263 | |
bbab0940 TM |
4264 | super->extra_space += space_needed; |
4265 | ||
cdddbdbc DW |
4266 | return 0; |
4267 | } | |
4268 | ||
e2f41b2c AK |
4269 | /******************************************************************************* |
4270 | * Function: check_mpb_migr_compatibility | |
4271 | * Description: Function checks for unsupported migration features: | |
4272 | * - migration optimization area (pba_of_lba0) | |
4273 | * - descending reshape (ascending_migr) | |
4274 | * Parameters: | |
4275 | * super : imsm metadata information | |
4276 | * Returns: | |
4277 | * 0 : migration is compatible | |
4278 | * -1 : migration is not compatible | |
4279 | ******************************************************************************/ | |
4280 | int check_mpb_migr_compatibility(struct intel_super *super) | |
4281 | { | |
4282 | struct imsm_map *map0, *map1; | |
4283 | struct migr_record *migr_rec = super->migr_rec; | |
4284 | int i; | |
4285 | ||
4286 | for (i = 0; i < super->anchor->num_raid_devs; i++) { | |
4287 | struct imsm_dev *dev_iter = __get_imsm_dev(super->anchor, i); | |
4288 | ||
4289 | if (dev_iter && | |
4290 | dev_iter->vol.migr_state == 1 && | |
4291 | dev_iter->vol.migr_type == MIGR_GEN_MIGR) { | |
4292 | /* This device is migrating */ | |
238c0a71 AK |
4293 | map0 = get_imsm_map(dev_iter, MAP_0); |
4294 | map1 = get_imsm_map(dev_iter, MAP_1); | |
5551b113 | 4295 | if (pba_of_lba0(map0) != pba_of_lba0(map1)) |
e2f41b2c AK |
4296 | /* migration optimization area was used */ |
4297 | return -1; | |
fc54fe7a JS |
4298 | if (migr_rec->ascending_migr == 0 && |
4299 | migr_rec->dest_depth_per_unit > 0) | |
e2f41b2c AK |
4300 | /* descending reshape not supported yet */ |
4301 | return -1; | |
4302 | } | |
4303 | } | |
4304 | return 0; | |
4305 | } | |
4306 | ||
d23fe947 | 4307 | static void __free_imsm(struct intel_super *super, int free_disks); |
9ca2c81c | 4308 | |
cdddbdbc | 4309 | /* load_imsm_mpb - read matrix metadata |
f2f5c343 | 4310 | * allocates super->mpb to be freed by free_imsm |
cdddbdbc DW |
4311 | */ |
4312 | static int load_imsm_mpb(int fd, struct intel_super *super, char *devname) | |
4313 | { | |
4314 | unsigned long long dsize; | |
cdddbdbc | 4315 | unsigned long long sectors; |
f36a9ecd | 4316 | unsigned int sector_size = super->sector_size; |
cdddbdbc | 4317 | struct stat; |
6416d527 | 4318 | struct imsm_super *anchor; |
cdddbdbc DW |
4319 | __u32 check_sum; |
4320 | ||
cdddbdbc | 4321 | get_dev_size(fd, NULL, &dsize); |
f36a9ecd | 4322 | if (dsize < 2*sector_size) { |
64436f06 | 4323 | if (devname) |
e7b84f9d N |
4324 | pr_err("%s: device to small for imsm\n", |
4325 | devname); | |
64436f06 N |
4326 | return 1; |
4327 | } | |
cdddbdbc | 4328 | |
f36a9ecd | 4329 | if (lseek64(fd, dsize - (sector_size * 2), SEEK_SET) < 0) { |
cdddbdbc | 4330 | if (devname) |
e7b84f9d N |
4331 | pr_err("Cannot seek to anchor block on %s: %s\n", |
4332 | devname, strerror(errno)); | |
cdddbdbc DW |
4333 | return 1; |
4334 | } | |
4335 | ||
f36a9ecd | 4336 | if (posix_memalign((void **)&anchor, sector_size, sector_size) != 0) { |
ad97895e | 4337 | if (devname) |
7a862a02 | 4338 | pr_err("Failed to allocate imsm anchor buffer on %s\n", devname); |
ad97895e DW |
4339 | return 1; |
4340 | } | |
466070ad | 4341 | if ((unsigned int)read(fd, anchor, sector_size) != sector_size) { |
cdddbdbc | 4342 | if (devname) |
e7b84f9d N |
4343 | pr_err("Cannot read anchor block on %s: %s\n", |
4344 | devname, strerror(errno)); | |
6416d527 | 4345 | free(anchor); |
cdddbdbc DW |
4346 | return 1; |
4347 | } | |
4348 | ||
6416d527 | 4349 | if (strncmp((char *) anchor->sig, MPB_SIGNATURE, MPB_SIG_LEN) != 0) { |
cdddbdbc | 4350 | if (devname) |
e7b84f9d | 4351 | pr_err("no IMSM anchor on %s\n", devname); |
6416d527 | 4352 | free(anchor); |
cdddbdbc DW |
4353 | return 2; |
4354 | } | |
4355 | ||
d23fe947 | 4356 | __free_imsm(super, 0); |
f2f5c343 LM |
4357 | /* reload capability and hba */ |
4358 | ||
4359 | /* capability and hba must be updated with new super allocation */ | |
d424212e | 4360 | find_intel_hba_capability(fd, super, devname); |
f36a9ecd PB |
4361 | super->len = ROUND_UP(anchor->mpb_size, sector_size); |
4362 | if (posix_memalign(&super->buf, MAX_SECTOR_SIZE, super->len) != 0) { | |
cdddbdbc | 4363 | if (devname) |
e7b84f9d N |
4364 | pr_err("unable to allocate %zu byte mpb buffer\n", |
4365 | super->len); | |
6416d527 | 4366 | free(anchor); |
cdddbdbc DW |
4367 | return 2; |
4368 | } | |
f36a9ecd | 4369 | memcpy(super->buf, anchor, sector_size); |
cdddbdbc | 4370 | |
f36a9ecd | 4371 | sectors = mpb_sectors(anchor, sector_size) - 1; |
6416d527 | 4372 | free(anchor); |
8e59f3d8 | 4373 | |
85337573 AO |
4374 | if (posix_memalign(&super->migr_rec_buf, MAX_SECTOR_SIZE, |
4375 | MIGR_REC_BUF_SECTORS*MAX_SECTOR_SIZE) != 0) { | |
1ade5cc1 | 4376 | pr_err("could not allocate migr_rec buffer\n"); |
8e59f3d8 AK |
4377 | free(super->buf); |
4378 | return 2; | |
4379 | } | |
51d83f5d | 4380 | super->clean_migration_record_by_mdmon = 0; |
8e59f3d8 | 4381 | |
949c47a0 | 4382 | if (!sectors) { |
ecf45690 DW |
4383 | check_sum = __gen_imsm_checksum(super->anchor); |
4384 | if (check_sum != __le32_to_cpu(super->anchor->check_sum)) { | |
4385 | if (devname) | |
e7b84f9d N |
4386 | pr_err("IMSM checksum %x != %x on %s\n", |
4387 | check_sum, | |
4388 | __le32_to_cpu(super->anchor->check_sum), | |
4389 | devname); | |
ecf45690 DW |
4390 | return 2; |
4391 | } | |
4392 | ||
a2b97981 | 4393 | return 0; |
949c47a0 | 4394 | } |
cdddbdbc DW |
4395 | |
4396 | /* read the extended mpb */ | |
f36a9ecd | 4397 | if (lseek64(fd, dsize - (sector_size * (2 + sectors)), SEEK_SET) < 0) { |
cdddbdbc | 4398 | if (devname) |
e7b84f9d N |
4399 | pr_err("Cannot seek to extended mpb on %s: %s\n", |
4400 | devname, strerror(errno)); | |
cdddbdbc DW |
4401 | return 1; |
4402 | } | |
4403 | ||
f36a9ecd PB |
4404 | if ((unsigned int)read(fd, super->buf + sector_size, |
4405 | super->len - sector_size) != super->len - sector_size) { | |
cdddbdbc | 4406 | if (devname) |
e7b84f9d N |
4407 | pr_err("Cannot read extended mpb on %s: %s\n", |
4408 | devname, strerror(errno)); | |
cdddbdbc DW |
4409 | return 2; |
4410 | } | |
4411 | ||
949c47a0 DW |
4412 | check_sum = __gen_imsm_checksum(super->anchor); |
4413 | if (check_sum != __le32_to_cpu(super->anchor->check_sum)) { | |
cdddbdbc | 4414 | if (devname) |
e7b84f9d N |
4415 | pr_err("IMSM checksum %x != %x on %s\n", |
4416 | check_sum, __le32_to_cpu(super->anchor->check_sum), | |
4417 | devname); | |
db575f3b | 4418 | return 3; |
cdddbdbc DW |
4419 | } |
4420 | ||
a2b97981 DW |
4421 | return 0; |
4422 | } | |
4423 | ||
8e59f3d8 AK |
4424 | static int read_imsm_migr_rec(int fd, struct intel_super *super); |
4425 | ||
97f81ee2 CA |
4426 | /* clears hi bits in metadata if MPB_ATTRIB_2TB_DISK not set */ |
4427 | static void clear_hi(struct intel_super *super) | |
4428 | { | |
4429 | struct imsm_super *mpb = super->anchor; | |
4430 | int i, n; | |
4431 | if (mpb->attributes & MPB_ATTRIB_2TB_DISK) | |
4432 | return; | |
4433 | for (i = 0; i < mpb->num_disks; ++i) { | |
4434 | struct imsm_disk *disk = &mpb->disk[i]; | |
4435 | disk->total_blocks_hi = 0; | |
4436 | } | |
4437 | for (i = 0; i < mpb->num_raid_devs; ++i) { | |
4438 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
4439 | if (!dev) | |
4440 | return; | |
4441 | for (n = 0; n < 2; ++n) { | |
4442 | struct imsm_map *map = get_imsm_map(dev, n); | |
4443 | if (!map) | |
4444 | continue; | |
4445 | map->pba_of_lba0_hi = 0; | |
4446 | map->blocks_per_member_hi = 0; | |
4447 | map->num_data_stripes_hi = 0; | |
4448 | } | |
4449 | } | |
4450 | } | |
4451 | ||
a2b97981 DW |
4452 | static int |
4453 | load_and_parse_mpb(int fd, struct intel_super *super, char *devname, int keep_fd) | |
4454 | { | |
4455 | int err; | |
4456 | ||
4457 | err = load_imsm_mpb(fd, super, devname); | |
4458 | if (err) | |
4459 | return err; | |
f36a9ecd PB |
4460 | if (super->sector_size == 4096) |
4461 | convert_from_4k(super); | |
a2b97981 DW |
4462 | err = load_imsm_disk(fd, super, devname, keep_fd); |
4463 | if (err) | |
4464 | return err; | |
4465 | err = parse_raid_devices(super); | |
8d67477f TM |
4466 | if (err) |
4467 | return err; | |
4468 | err = load_bbm_log(super); | |
97f81ee2 | 4469 | clear_hi(super); |
a2b97981 | 4470 | return err; |
cdddbdbc DW |
4471 | } |
4472 | ||
ae6aad82 DW |
4473 | static void __free_imsm_disk(struct dl *d) |
4474 | { | |
4475 | if (d->fd >= 0) | |
4476 | close(d->fd); | |
4477 | if (d->devname) | |
4478 | free(d->devname); | |
0dcecb2e DW |
4479 | if (d->e) |
4480 | free(d->e); | |
ae6aad82 DW |
4481 | free(d); |
4482 | ||
4483 | } | |
1a64be56 | 4484 | |
cdddbdbc DW |
4485 | static void free_imsm_disks(struct intel_super *super) |
4486 | { | |
47ee5a45 | 4487 | struct dl *d; |
cdddbdbc | 4488 | |
47ee5a45 DW |
4489 | while (super->disks) { |
4490 | d = super->disks; | |
cdddbdbc | 4491 | super->disks = d->next; |
ae6aad82 | 4492 | __free_imsm_disk(d); |
cdddbdbc | 4493 | } |
cb82edca AK |
4494 | while (super->disk_mgmt_list) { |
4495 | d = super->disk_mgmt_list; | |
4496 | super->disk_mgmt_list = d->next; | |
4497 | __free_imsm_disk(d); | |
4498 | } | |
47ee5a45 DW |
4499 | while (super->missing) { |
4500 | d = super->missing; | |
4501 | super->missing = d->next; | |
4502 | __free_imsm_disk(d); | |
4503 | } | |
4504 | ||
cdddbdbc DW |
4505 | } |
4506 | ||
9ca2c81c | 4507 | /* free all the pieces hanging off of a super pointer */ |
d23fe947 | 4508 | static void __free_imsm(struct intel_super *super, int free_disks) |
cdddbdbc | 4509 | { |
88654014 LM |
4510 | struct intel_hba *elem, *next; |
4511 | ||
9ca2c81c | 4512 | if (super->buf) { |
949c47a0 | 4513 | free(super->buf); |
9ca2c81c DW |
4514 | super->buf = NULL; |
4515 | } | |
f2f5c343 LM |
4516 | /* unlink capability description */ |
4517 | super->orom = NULL; | |
8e59f3d8 AK |
4518 | if (super->migr_rec_buf) { |
4519 | free(super->migr_rec_buf); | |
4520 | super->migr_rec_buf = NULL; | |
4521 | } | |
d23fe947 DW |
4522 | if (free_disks) |
4523 | free_imsm_disks(super); | |
ba2de7ba | 4524 | free_devlist(super); |
88654014 LM |
4525 | elem = super->hba; |
4526 | while (elem) { | |
4527 | if (elem->path) | |
4528 | free((void *)elem->path); | |
4529 | next = elem->next; | |
4530 | free(elem); | |
4531 | elem = next; | |
88c32bb1 | 4532 | } |
8d67477f TM |
4533 | if (super->bbm_log) |
4534 | free(super->bbm_log); | |
88654014 | 4535 | super->hba = NULL; |
cdddbdbc DW |
4536 | } |
4537 | ||
9ca2c81c DW |
4538 | static void free_imsm(struct intel_super *super) |
4539 | { | |
d23fe947 | 4540 | __free_imsm(super, 1); |
928f1424 | 4541 | free(super->bb.entries); |
9ca2c81c DW |
4542 | free(super); |
4543 | } | |
cdddbdbc DW |
4544 | |
4545 | static void free_super_imsm(struct supertype *st) | |
4546 | { | |
4547 | struct intel_super *super = st->sb; | |
4548 | ||
4549 | if (!super) | |
4550 | return; | |
4551 | ||
4552 | free_imsm(super); | |
4553 | st->sb = NULL; | |
4554 | } | |
4555 | ||
49133e57 | 4556 | static struct intel_super *alloc_super(void) |
c2c087e6 | 4557 | { |
503975b9 | 4558 | struct intel_super *super = xcalloc(1, sizeof(*super)); |
c2c087e6 | 4559 | |
503975b9 N |
4560 | super->current_vol = -1; |
4561 | super->create_offset = ~((unsigned long long) 0); | |
928f1424 TM |
4562 | |
4563 | super->bb.entries = xmalloc(BBM_LOG_MAX_ENTRIES * | |
4564 | sizeof(struct md_bb_entry)); | |
4565 | if (!super->bb.entries) { | |
4566 | free(super); | |
4567 | return NULL; | |
4568 | } | |
4569 | ||
c2c087e6 DW |
4570 | return super; |
4571 | } | |
4572 | ||
f0f5a016 LM |
4573 | /* |
4574 | * find and allocate hba and OROM/EFI based on valid fd of RAID component device | |
4575 | */ | |
d424212e | 4576 | static int find_intel_hba_capability(int fd, struct intel_super *super, char *devname) |
f0f5a016 LM |
4577 | { |
4578 | struct sys_dev *hba_name; | |
4579 | int rv = 0; | |
4580 | ||
3a30e28e MT |
4581 | if (fd >= 0 && test_partition(fd)) { |
4582 | pr_err("imsm: %s is a partition, cannot be used in IMSM\n", | |
4583 | devname); | |
4584 | return 1; | |
4585 | } | |
089f9d79 | 4586 | if (fd < 0 || check_env("IMSM_NO_PLATFORM")) { |
f2f5c343 | 4587 | super->orom = NULL; |
f0f5a016 LM |
4588 | super->hba = NULL; |
4589 | return 0; | |
4590 | } | |
4591 | hba_name = find_disk_attached_hba(fd, NULL); | |
4592 | if (!hba_name) { | |
d424212e | 4593 | if (devname) |
e7b84f9d N |
4594 | pr_err("%s is not attached to Intel(R) RAID controller.\n", |
4595 | devname); | |
f0f5a016 LM |
4596 | return 1; |
4597 | } | |
4598 | rv = attach_hba_to_super(super, hba_name); | |
4599 | if (rv == 2) { | |
d424212e N |
4600 | if (devname) { |
4601 | struct intel_hba *hba = super->hba; | |
f0f5a016 | 4602 | |
60f0f54d PB |
4603 | pr_err("%s is attached to Intel(R) %s %s (%s),\n" |
4604 | " but the container is assigned to Intel(R) %s %s (", | |
d424212e | 4605 | devname, |
614902f6 | 4606 | get_sys_dev_type(hba_name->type), |
60f0f54d | 4607 | hba_name->type == SYS_DEV_VMD ? "domain" : "RAID controller", |
f0f5a016 | 4608 | hba_name->pci_id ? : "Err!", |
60f0f54d PB |
4609 | get_sys_dev_type(super->hba->type), |
4610 | hba->type == SYS_DEV_VMD ? "domain" : "RAID controller"); | |
f0f5a016 | 4611 | |
f0f5a016 LM |
4612 | while (hba) { |
4613 | fprintf(stderr, "%s", hba->pci_id ? : "Err!"); | |
4614 | if (hba->next) | |
4615 | fprintf(stderr, ", "); | |
4616 | hba = hba->next; | |
4617 | } | |
6b781d33 | 4618 | fprintf(stderr, ").\n" |
cca67208 | 4619 | " Mixing devices attached to different controllers is not allowed.\n"); |
f0f5a016 | 4620 | } |
f0f5a016 LM |
4621 | return 2; |
4622 | } | |
6b781d33 | 4623 | super->orom = find_imsm_capability(hba_name); |
f2f5c343 LM |
4624 | if (!super->orom) |
4625 | return 3; | |
614902f6 | 4626 | |
f0f5a016 LM |
4627 | return 0; |
4628 | } | |
4629 | ||
47ee5a45 DW |
4630 | /* find_missing - helper routine for load_super_imsm_all that identifies |
4631 | * disks that have disappeared from the system. This routine relies on | |
4632 | * the mpb being uptodate, which it is at load time. | |
4633 | */ | |
4634 | static int find_missing(struct intel_super *super) | |
4635 | { | |
4636 | int i; | |
4637 | struct imsm_super *mpb = super->anchor; | |
4638 | struct dl *dl; | |
4639 | struct imsm_disk *disk; | |
47ee5a45 DW |
4640 | |
4641 | for (i = 0; i < mpb->num_disks; i++) { | |
4642 | disk = __get_imsm_disk(mpb, i); | |
54c2c1ea | 4643 | dl = serial_to_dl(disk->serial, super); |
47ee5a45 DW |
4644 | if (dl) |
4645 | continue; | |
47ee5a45 | 4646 | |
503975b9 | 4647 | dl = xmalloc(sizeof(*dl)); |
47ee5a45 DW |
4648 | dl->major = 0; |
4649 | dl->minor = 0; | |
4650 | dl->fd = -1; | |
503975b9 | 4651 | dl->devname = xstrdup("missing"); |
47ee5a45 DW |
4652 | dl->index = i; |
4653 | serialcpy(dl->serial, disk->serial); | |
4654 | dl->disk = *disk; | |
689c9bf3 | 4655 | dl->e = NULL; |
47ee5a45 DW |
4656 | dl->next = super->missing; |
4657 | super->missing = dl; | |
4658 | } | |
4659 | ||
4660 | return 0; | |
4661 | } | |
4662 | ||
a2b97981 DW |
4663 | static struct intel_disk *disk_list_get(__u8 *serial, struct intel_disk *disk_list) |
4664 | { | |
4665 | struct intel_disk *idisk = disk_list; | |
4666 | ||
4667 | while (idisk) { | |
4668 | if (serialcmp(idisk->disk.serial, serial) == 0) | |
4669 | break; | |
4670 | idisk = idisk->next; | |
4671 | } | |
4672 | ||
4673 | return idisk; | |
4674 | } | |
4675 | ||
4676 | static int __prep_thunderdome(struct intel_super **table, int tbl_size, | |
4677 | struct intel_super *super, | |
4678 | struct intel_disk **disk_list) | |
4679 | { | |
4680 | struct imsm_disk *d = &super->disks->disk; | |
4681 | struct imsm_super *mpb = super->anchor; | |
4682 | int i, j; | |
4683 | ||
4684 | for (i = 0; i < tbl_size; i++) { | |
4685 | struct imsm_super *tbl_mpb = table[i]->anchor; | |
4686 | struct imsm_disk *tbl_d = &table[i]->disks->disk; | |
4687 | ||
4688 | if (tbl_mpb->family_num == mpb->family_num) { | |
4689 | if (tbl_mpb->check_sum == mpb->check_sum) { | |
1ade5cc1 N |
4690 | dprintf("mpb from %d:%d matches %d:%d\n", |
4691 | super->disks->major, | |
a2b97981 DW |
4692 | super->disks->minor, |
4693 | table[i]->disks->major, | |
4694 | table[i]->disks->minor); | |
4695 | break; | |
4696 | } | |
4697 | ||
4698 | if (((is_configured(d) && !is_configured(tbl_d)) || | |
4699 | is_configured(d) == is_configured(tbl_d)) && | |
4700 | tbl_mpb->generation_num < mpb->generation_num) { | |
4701 | /* current version of the mpb is a | |
4702 | * better candidate than the one in | |
4703 | * super_table, but copy over "cross | |
4704 | * generational" status | |
4705 | */ | |
4706 | struct intel_disk *idisk; | |
4707 | ||
1ade5cc1 N |
4708 | dprintf("mpb from %d:%d replaces %d:%d\n", |
4709 | super->disks->major, | |
a2b97981 DW |
4710 | super->disks->minor, |
4711 | table[i]->disks->major, | |
4712 | table[i]->disks->minor); | |
4713 | ||
4714 | idisk = disk_list_get(tbl_d->serial, *disk_list); | |
4715 | if (idisk && is_failed(&idisk->disk)) | |
4716 | tbl_d->status |= FAILED_DISK; | |
4717 | break; | |
4718 | } else { | |
4719 | struct intel_disk *idisk; | |
4720 | struct imsm_disk *disk; | |
4721 | ||
4722 | /* tbl_mpb is more up to date, but copy | |
4723 | * over cross generational status before | |
4724 | * returning | |
4725 | */ | |
4726 | disk = __serial_to_disk(d->serial, mpb, NULL); | |
4727 | if (disk && is_failed(disk)) | |
4728 | d->status |= FAILED_DISK; | |
4729 | ||
4730 | idisk = disk_list_get(d->serial, *disk_list); | |
4731 | if (idisk) { | |
4732 | idisk->owner = i; | |
4733 | if (disk && is_configured(disk)) | |
4734 | idisk->disk.status |= CONFIGURED_DISK; | |
4735 | } | |
4736 | ||
1ade5cc1 N |
4737 | dprintf("mpb from %d:%d prefer %d:%d\n", |
4738 | super->disks->major, | |
a2b97981 DW |
4739 | super->disks->minor, |
4740 | table[i]->disks->major, | |
4741 | table[i]->disks->minor); | |
4742 | ||
4743 | return tbl_size; | |
4744 | } | |
4745 | } | |
4746 | } | |
4747 | ||
4748 | if (i >= tbl_size) | |
4749 | table[tbl_size++] = super; | |
4750 | else | |
4751 | table[i] = super; | |
4752 | ||
4753 | /* update/extend the merged list of imsm_disk records */ | |
4754 | for (j = 0; j < mpb->num_disks; j++) { | |
4755 | struct imsm_disk *disk = __get_imsm_disk(mpb, j); | |
4756 | struct intel_disk *idisk; | |
4757 | ||
4758 | idisk = disk_list_get(disk->serial, *disk_list); | |
4759 | if (idisk) { | |
4760 | idisk->disk.status |= disk->status; | |
4761 | if (is_configured(&idisk->disk) || | |
4762 | is_failed(&idisk->disk)) | |
4763 | idisk->disk.status &= ~(SPARE_DISK); | |
4764 | } else { | |
503975b9 | 4765 | idisk = xcalloc(1, sizeof(*idisk)); |
a2b97981 DW |
4766 | idisk->owner = IMSM_UNKNOWN_OWNER; |
4767 | idisk->disk = *disk; | |
4768 | idisk->next = *disk_list; | |
4769 | *disk_list = idisk; | |
4770 | } | |
4771 | ||
4772 | if (serialcmp(idisk->disk.serial, d->serial) == 0) | |
4773 | idisk->owner = i; | |
4774 | } | |
4775 | ||
4776 | return tbl_size; | |
4777 | } | |
4778 | ||
4779 | static struct intel_super * | |
4780 | validate_members(struct intel_super *super, struct intel_disk *disk_list, | |
4781 | const int owner) | |
4782 | { | |
4783 | struct imsm_super *mpb = super->anchor; | |
4784 | int ok_count = 0; | |
4785 | int i; | |
4786 | ||
4787 | for (i = 0; i < mpb->num_disks; i++) { | |
4788 | struct imsm_disk *disk = __get_imsm_disk(mpb, i); | |
4789 | struct intel_disk *idisk; | |
4790 | ||
4791 | idisk = disk_list_get(disk->serial, disk_list); | |
4792 | if (idisk) { | |
4793 | if (idisk->owner == owner || | |
4794 | idisk->owner == IMSM_UNKNOWN_OWNER) | |
4795 | ok_count++; | |
4796 | else | |
1ade5cc1 N |
4797 | dprintf("'%.16s' owner %d != %d\n", |
4798 | disk->serial, idisk->owner, | |
a2b97981 DW |
4799 | owner); |
4800 | } else { | |
1ade5cc1 N |
4801 | dprintf("unknown disk %x [%d]: %.16s\n", |
4802 | __le32_to_cpu(mpb->family_num), i, | |
a2b97981 DW |
4803 | disk->serial); |
4804 | break; | |
4805 | } | |
4806 | } | |
4807 | ||
4808 | if (ok_count == mpb->num_disks) | |
4809 | return super; | |
4810 | return NULL; | |
4811 | } | |
4812 | ||
4813 | static void show_conflicts(__u32 family_num, struct intel_super *super_list) | |
4814 | { | |
4815 | struct intel_super *s; | |
4816 | ||
4817 | for (s = super_list; s; s = s->next) { | |
4818 | if (family_num != s->anchor->family_num) | |
4819 | continue; | |
e12b3daa | 4820 | pr_err("Conflict, offlining family %#x on '%s'\n", |
a2b97981 DW |
4821 | __le32_to_cpu(family_num), s->disks->devname); |
4822 | } | |
4823 | } | |
4824 | ||
4825 | static struct intel_super * | |
4826 | imsm_thunderdome(struct intel_super **super_list, int len) | |
4827 | { | |
4828 | struct intel_super *super_table[len]; | |
4829 | struct intel_disk *disk_list = NULL; | |
4830 | struct intel_super *champion, *spare; | |
4831 | struct intel_super *s, **del; | |
4832 | int tbl_size = 0; | |
4833 | int conflict; | |
4834 | int i; | |
4835 | ||
4836 | memset(super_table, 0, sizeof(super_table)); | |
4837 | for (s = *super_list; s; s = s->next) | |
4838 | tbl_size = __prep_thunderdome(super_table, tbl_size, s, &disk_list); | |
4839 | ||
4840 | for (i = 0; i < tbl_size; i++) { | |
4841 | struct imsm_disk *d; | |
4842 | struct intel_disk *idisk; | |
4843 | struct imsm_super *mpb = super_table[i]->anchor; | |
4844 | ||
4845 | s = super_table[i]; | |
4846 | d = &s->disks->disk; | |
4847 | ||
4848 | /* 'd' must appear in merged disk list for its | |
4849 | * configuration to be valid | |
4850 | */ | |
4851 | idisk = disk_list_get(d->serial, disk_list); | |
4852 | if (idisk && idisk->owner == i) | |
4853 | s = validate_members(s, disk_list, i); | |
4854 | else | |
4855 | s = NULL; | |
4856 | ||
4857 | if (!s) | |
1ade5cc1 N |
4858 | dprintf("marking family: %#x from %d:%d offline\n", |
4859 | mpb->family_num, | |
a2b97981 DW |
4860 | super_table[i]->disks->major, |
4861 | super_table[i]->disks->minor); | |
4862 | super_table[i] = s; | |
4863 | } | |
4864 | ||
4865 | /* This is where the mdadm implementation differs from the Windows | |
4866 | * driver which has no strict concept of a container. We can only | |
4867 | * assemble one family from a container, so when returning a prodigal | |
4868 | * array member to this system the code will not be able to disambiguate | |
4869 | * the container contents that should be assembled ("foreign" versus | |
4870 | * "local"). It requires user intervention to set the orig_family_num | |
4871 | * to a new value to establish a new container. The Windows driver in | |
4872 | * this situation fixes up the volume name in place and manages the | |
4873 | * foreign array as an independent entity. | |
4874 | */ | |
4875 | s = NULL; | |
4876 | spare = NULL; | |
4877 | conflict = 0; | |
4878 | for (i = 0; i < tbl_size; i++) { | |
4879 | struct intel_super *tbl_ent = super_table[i]; | |
4880 | int is_spare = 0; | |
4881 | ||
4882 | if (!tbl_ent) | |
4883 | continue; | |
4884 | ||
4885 | if (tbl_ent->anchor->num_raid_devs == 0) { | |
4886 | spare = tbl_ent; | |
4887 | is_spare = 1; | |
4888 | } | |
4889 | ||
4890 | if (s && !is_spare) { | |
4891 | show_conflicts(tbl_ent->anchor->family_num, *super_list); | |
4892 | conflict++; | |
4893 | } else if (!s && !is_spare) | |
4894 | s = tbl_ent; | |
4895 | } | |
4896 | ||
4897 | if (!s) | |
4898 | s = spare; | |
4899 | if (!s) { | |
4900 | champion = NULL; | |
4901 | goto out; | |
4902 | } | |
4903 | champion = s; | |
4904 | ||
4905 | if (conflict) | |
7a862a02 | 4906 | pr_err("Chose family %#x on '%s', assemble conflicts to new container with '--update=uuid'\n", |
a2b97981 DW |
4907 | __le32_to_cpu(s->anchor->family_num), s->disks->devname); |
4908 | ||
4909 | /* collect all dl's onto 'champion', and update them to | |
4910 | * champion's version of the status | |
4911 | */ | |
4912 | for (s = *super_list; s; s = s->next) { | |
4913 | struct imsm_super *mpb = champion->anchor; | |
4914 | struct dl *dl = s->disks; | |
4915 | ||
4916 | if (s == champion) | |
4917 | continue; | |
4918 | ||
5d7b407a CA |
4919 | mpb->attributes |= s->anchor->attributes & MPB_ATTRIB_2TB_DISK; |
4920 | ||
a2b97981 DW |
4921 | for (i = 0; i < mpb->num_disks; i++) { |
4922 | struct imsm_disk *disk; | |
4923 | ||
4924 | disk = __serial_to_disk(dl->serial, mpb, &dl->index); | |
4925 | if (disk) { | |
4926 | dl->disk = *disk; | |
4927 | /* only set index on disks that are a member of | |
4928 | * a populated contianer, i.e. one with | |
4929 | * raid_devs | |
4930 | */ | |
4931 | if (is_failed(&dl->disk)) | |
4932 | dl->index = -2; | |
4933 | else if (is_spare(&dl->disk)) | |
4934 | dl->index = -1; | |
4935 | break; | |
4936 | } | |
4937 | } | |
4938 | ||
4939 | if (i >= mpb->num_disks) { | |
4940 | struct intel_disk *idisk; | |
4941 | ||
4942 | idisk = disk_list_get(dl->serial, disk_list); | |
ecf408e9 | 4943 | if (idisk && is_spare(&idisk->disk) && |
a2b97981 DW |
4944 | !is_failed(&idisk->disk) && !is_configured(&idisk->disk)) |
4945 | dl->index = -1; | |
4946 | else { | |
4947 | dl->index = -2; | |
4948 | continue; | |
4949 | } | |
4950 | } | |
4951 | ||
4952 | dl->next = champion->disks; | |
4953 | champion->disks = dl; | |
4954 | s->disks = NULL; | |
4955 | } | |
4956 | ||
4957 | /* delete 'champion' from super_list */ | |
4958 | for (del = super_list; *del; ) { | |
4959 | if (*del == champion) { | |
4960 | *del = (*del)->next; | |
4961 | break; | |
4962 | } else | |
4963 | del = &(*del)->next; | |
4964 | } | |
4965 | champion->next = NULL; | |
4966 | ||
4967 | out: | |
4968 | while (disk_list) { | |
4969 | struct intel_disk *idisk = disk_list; | |
4970 | ||
4971 | disk_list = disk_list->next; | |
4972 | free(idisk); | |
4973 | } | |
4974 | ||
4975 | return champion; | |
4976 | } | |
4977 | ||
9587c373 LM |
4978 | static int |
4979 | get_sra_super_block(int fd, struct intel_super **super_list, char *devname, int *max, int keep_fd); | |
4dd2df09 | 4980 | static int get_super_block(struct intel_super **super_list, char *devnm, char *devname, |
9587c373 | 4981 | int major, int minor, int keep_fd); |
ec50f7b6 LM |
4982 | static int |
4983 | get_devlist_super_block(struct md_list *devlist, struct intel_super **super_list, | |
4984 | int *max, int keep_fd); | |
4985 | ||
cdddbdbc | 4986 | static int load_super_imsm_all(struct supertype *st, int fd, void **sbp, |
ec50f7b6 LM |
4987 | char *devname, struct md_list *devlist, |
4988 | int keep_fd) | |
cdddbdbc | 4989 | { |
a2b97981 DW |
4990 | struct intel_super *super_list = NULL; |
4991 | struct intel_super *super = NULL; | |
a2b97981 | 4992 | int err = 0; |
9587c373 | 4993 | int i = 0; |
dab4a513 | 4994 | |
9587c373 LM |
4995 | if (fd >= 0) |
4996 | /* 'fd' is an opened container */ | |
4997 | err = get_sra_super_block(fd, &super_list, devname, &i, keep_fd); | |
4998 | else | |
ec50f7b6 LM |
4999 | /* get super block from devlist devices */ |
5000 | err = get_devlist_super_block(devlist, &super_list, &i, keep_fd); | |
9587c373 | 5001 | if (err) |
1602d52c | 5002 | goto error; |
a2b97981 DW |
5003 | /* all mpbs enter, maybe one leaves */ |
5004 | super = imsm_thunderdome(&super_list, i); | |
5005 | if (!super) { | |
5006 | err = 1; | |
5007 | goto error; | |
cdddbdbc DW |
5008 | } |
5009 | ||
47ee5a45 DW |
5010 | if (find_missing(super) != 0) { |
5011 | free_imsm(super); | |
a2b97981 DW |
5012 | err = 2; |
5013 | goto error; | |
47ee5a45 | 5014 | } |
8e59f3d8 AK |
5015 | |
5016 | /* load migration record */ | |
5017 | err = load_imsm_migr_rec(super, NULL); | |
4c965cc9 AK |
5018 | if (err == -1) { |
5019 | /* migration is in progress, | |
5020 | * but migr_rec cannot be loaded, | |
5021 | */ | |
8e59f3d8 AK |
5022 | err = 4; |
5023 | goto error; | |
5024 | } | |
e2f41b2c AK |
5025 | |
5026 | /* Check migration compatibility */ | |
089f9d79 | 5027 | if (err == 0 && check_mpb_migr_compatibility(super) != 0) { |
e7b84f9d | 5028 | pr_err("Unsupported migration detected"); |
e2f41b2c AK |
5029 | if (devname) |
5030 | fprintf(stderr, " on %s\n", devname); | |
5031 | else | |
5032 | fprintf(stderr, " (IMSM).\n"); | |
5033 | ||
5034 | err = 5; | |
5035 | goto error; | |
5036 | } | |
5037 | ||
a2b97981 DW |
5038 | err = 0; |
5039 | ||
5040 | error: | |
5041 | while (super_list) { | |
5042 | struct intel_super *s = super_list; | |
5043 | ||
5044 | super_list = super_list->next; | |
5045 | free_imsm(s); | |
5046 | } | |
9587c373 | 5047 | |
a2b97981 DW |
5048 | if (err) |
5049 | return err; | |
f7e7067b | 5050 | |
cdddbdbc | 5051 | *sbp = super; |
9587c373 | 5052 | if (fd >= 0) |
4dd2df09 | 5053 | strcpy(st->container_devnm, fd2devnm(fd)); |
9587c373 | 5054 | else |
4dd2df09 | 5055 | st->container_devnm[0] = 0; |
a2b97981 | 5056 | if (err == 0 && st->ss == NULL) { |
bf5a934a | 5057 | st->ss = &super_imsm; |
cdddbdbc DW |
5058 | st->minor_version = 0; |
5059 | st->max_devs = IMSM_MAX_DEVICES; | |
5060 | } | |
cdddbdbc DW |
5061 | return 0; |
5062 | } | |
2b959fbf | 5063 | |
ec50f7b6 LM |
5064 | static int |
5065 | get_devlist_super_block(struct md_list *devlist, struct intel_super **super_list, | |
5066 | int *max, int keep_fd) | |
5067 | { | |
5068 | struct md_list *tmpdev; | |
5069 | int err = 0; | |
5070 | int i = 0; | |
9587c373 | 5071 | |
ec50f7b6 LM |
5072 | for (i = 0, tmpdev = devlist; tmpdev; tmpdev = tmpdev->next) { |
5073 | if (tmpdev->used != 1) | |
5074 | continue; | |
5075 | if (tmpdev->container == 1) { | |
ca9de185 | 5076 | int lmax = 0; |
ec50f7b6 LM |
5077 | int fd = dev_open(tmpdev->devname, O_RDONLY|O_EXCL); |
5078 | if (fd < 0) { | |
e7b84f9d | 5079 | pr_err("cannot open device %s: %s\n", |
ec50f7b6 LM |
5080 | tmpdev->devname, strerror(errno)); |
5081 | err = 8; | |
5082 | goto error; | |
5083 | } | |
5084 | err = get_sra_super_block(fd, super_list, | |
5085 | tmpdev->devname, &lmax, | |
5086 | keep_fd); | |
5087 | i += lmax; | |
5088 | close(fd); | |
5089 | if (err) { | |
5090 | err = 7; | |
5091 | goto error; | |
5092 | } | |
5093 | } else { | |
5094 | int major = major(tmpdev->st_rdev); | |
5095 | int minor = minor(tmpdev->st_rdev); | |
5096 | err = get_super_block(super_list, | |
4dd2df09 | 5097 | NULL, |
ec50f7b6 LM |
5098 | tmpdev->devname, |
5099 | major, minor, | |
5100 | keep_fd); | |
5101 | i++; | |
5102 | if (err) { | |
5103 | err = 6; | |
5104 | goto error; | |
5105 | } | |
5106 | } | |
5107 | } | |
5108 | error: | |
5109 | *max = i; | |
5110 | return err; | |
5111 | } | |
9587c373 | 5112 | |
4dd2df09 | 5113 | static int get_super_block(struct intel_super **super_list, char *devnm, char *devname, |
9587c373 LM |
5114 | int major, int minor, int keep_fd) |
5115 | { | |
594dc1b8 | 5116 | struct intel_super *s; |
9587c373 LM |
5117 | char nm[32]; |
5118 | int dfd = -1; | |
9587c373 LM |
5119 | int err = 0; |
5120 | int retry; | |
5121 | ||
5122 | s = alloc_super(); | |
5123 | if (!s) { | |
5124 | err = 1; | |
5125 | goto error; | |
5126 | } | |
5127 | ||
5128 | sprintf(nm, "%d:%d", major, minor); | |
5129 | dfd = dev_open(nm, O_RDWR); | |
5130 | if (dfd < 0) { | |
5131 | err = 2; | |
5132 | goto error; | |
5133 | } | |
5134 | ||
fa7bb6f8 | 5135 | get_dev_sector_size(dfd, NULL, &s->sector_size); |
cb8f6859 | 5136 | find_intel_hba_capability(dfd, s, devname); |
9587c373 LM |
5137 | err = load_and_parse_mpb(dfd, s, NULL, keep_fd); |
5138 | ||
5139 | /* retry the load if we might have raced against mdmon */ | |
4dd2df09 | 5140 | if (err == 3 && devnm && mdmon_running(devnm)) |
9587c373 LM |
5141 | for (retry = 0; retry < 3; retry++) { |
5142 | usleep(3000); | |
5143 | err = load_and_parse_mpb(dfd, s, NULL, keep_fd); | |
5144 | if (err != 3) | |
5145 | break; | |
5146 | } | |
5147 | error: | |
5148 | if (!err) { | |
5149 | s->next = *super_list; | |
5150 | *super_list = s; | |
5151 | } else { | |
5152 | if (s) | |
8d67477f | 5153 | free_imsm(s); |
36614e95 | 5154 | if (dfd >= 0) |
9587c373 LM |
5155 | close(dfd); |
5156 | } | |
089f9d79 | 5157 | if (dfd >= 0 && !keep_fd) |
9587c373 LM |
5158 | close(dfd); |
5159 | return err; | |
5160 | ||
5161 | } | |
5162 | ||
5163 | static int | |
5164 | get_sra_super_block(int fd, struct intel_super **super_list, char *devname, int *max, int keep_fd) | |
5165 | { | |
5166 | struct mdinfo *sra; | |
4dd2df09 | 5167 | char *devnm; |
9587c373 LM |
5168 | struct mdinfo *sd; |
5169 | int err = 0; | |
5170 | int i = 0; | |
4dd2df09 | 5171 | sra = sysfs_read(fd, NULL, GET_LEVEL|GET_VERSION|GET_DEVS|GET_STATE); |
9587c373 LM |
5172 | if (!sra) |
5173 | return 1; | |
5174 | ||
5175 | if (sra->array.major_version != -1 || | |
5176 | sra->array.minor_version != -2 || | |
5177 | strcmp(sra->text_version, "imsm") != 0) { | |
5178 | err = 1; | |
5179 | goto error; | |
5180 | } | |
5181 | /* load all mpbs */ | |
4dd2df09 | 5182 | devnm = fd2devnm(fd); |
9587c373 | 5183 | for (sd = sra->devs, i = 0; sd; sd = sd->next, i++) { |
4dd2df09 | 5184 | if (get_super_block(super_list, devnm, devname, |
9587c373 LM |
5185 | sd->disk.major, sd->disk.minor, keep_fd) != 0) { |
5186 | err = 7; | |
5187 | goto error; | |
5188 | } | |
5189 | } | |
5190 | error: | |
5191 | sysfs_free(sra); | |
5192 | *max = i; | |
5193 | return err; | |
5194 | } | |
5195 | ||
2b959fbf N |
5196 | static int load_container_imsm(struct supertype *st, int fd, char *devname) |
5197 | { | |
ec50f7b6 | 5198 | return load_super_imsm_all(st, fd, &st->sb, devname, NULL, 1); |
2b959fbf | 5199 | } |
cdddbdbc DW |
5200 | |
5201 | static int load_super_imsm(struct supertype *st, int fd, char *devname) | |
5202 | { | |
5203 | struct intel_super *super; | |
5204 | int rv; | |
8a3544f8 | 5205 | int retry; |
cdddbdbc | 5206 | |
357ac106 | 5207 | if (test_partition(fd)) |
691c6ee1 N |
5208 | /* IMSM not allowed on partitions */ |
5209 | return 1; | |
5210 | ||
37424f13 DW |
5211 | free_super_imsm(st); |
5212 | ||
49133e57 | 5213 | super = alloc_super(); |
fa7bb6f8 | 5214 | get_dev_sector_size(fd, NULL, &super->sector_size); |
8d67477f TM |
5215 | if (!super) |
5216 | return 1; | |
ea2bc72b LM |
5217 | /* Load hba and capabilities if they exist. |
5218 | * But do not preclude loading metadata in case capabilities or hba are | |
5219 | * non-compliant and ignore_hw_compat is set. | |
5220 | */ | |
d424212e | 5221 | rv = find_intel_hba_capability(fd, super, devname); |
f2f5c343 | 5222 | /* no orom/efi or non-intel hba of the disk */ |
089f9d79 | 5223 | if (rv != 0 && st->ignore_hw_compat == 0) { |
f2f5c343 | 5224 | if (devname) |
e7b84f9d | 5225 | pr_err("No OROM/EFI properties for %s\n", devname); |
f2f5c343 LM |
5226 | free_imsm(super); |
5227 | return 2; | |
5228 | } | |
a2b97981 | 5229 | rv = load_and_parse_mpb(fd, super, devname, 0); |
cdddbdbc | 5230 | |
8a3544f8 AP |
5231 | /* retry the load if we might have raced against mdmon */ |
5232 | if (rv == 3) { | |
f96b1302 AP |
5233 | struct mdstat_ent *mdstat = NULL; |
5234 | char *name = fd2kname(fd); | |
5235 | ||
5236 | if (name) | |
5237 | mdstat = mdstat_by_component(name); | |
8a3544f8 AP |
5238 | |
5239 | if (mdstat && mdmon_running(mdstat->devnm) && getpid() != mdmon_pid(mdstat->devnm)) { | |
5240 | for (retry = 0; retry < 3; retry++) { | |
5241 | usleep(3000); | |
5242 | rv = load_and_parse_mpb(fd, super, devname, 0); | |
5243 | if (rv != 3) | |
5244 | break; | |
5245 | } | |
5246 | } | |
5247 | ||
5248 | free_mdstat(mdstat); | |
5249 | } | |
5250 | ||
cdddbdbc DW |
5251 | if (rv) { |
5252 | if (devname) | |
7a862a02 | 5253 | pr_err("Failed to load all information sections on %s\n", devname); |
cdddbdbc DW |
5254 | free_imsm(super); |
5255 | return rv; | |
5256 | } | |
5257 | ||
5258 | st->sb = super; | |
5259 | if (st->ss == NULL) { | |
5260 | st->ss = &super_imsm; | |
5261 | st->minor_version = 0; | |
5262 | st->max_devs = IMSM_MAX_DEVICES; | |
5263 | } | |
8e59f3d8 AK |
5264 | |
5265 | /* load migration record */ | |
2e062e82 AK |
5266 | if (load_imsm_migr_rec(super, NULL) == 0) { |
5267 | /* Check for unsupported migration features */ | |
5268 | if (check_mpb_migr_compatibility(super) != 0) { | |
e7b84f9d | 5269 | pr_err("Unsupported migration detected"); |
2e062e82 AK |
5270 | if (devname) |
5271 | fprintf(stderr, " on %s\n", devname); | |
5272 | else | |
5273 | fprintf(stderr, " (IMSM).\n"); | |
5274 | return 3; | |
5275 | } | |
e2f41b2c AK |
5276 | } |
5277 | ||
cdddbdbc DW |
5278 | return 0; |
5279 | } | |
5280 | ||
ef6ffade DW |
5281 | static __u16 info_to_blocks_per_strip(mdu_array_info_t *info) |
5282 | { | |
5283 | if (info->level == 1) | |
5284 | return 128; | |
5285 | return info->chunk_size >> 9; | |
5286 | } | |
5287 | ||
5551b113 CA |
5288 | static unsigned long long info_to_blocks_per_member(mdu_array_info_t *info, |
5289 | unsigned long long size) | |
fcfd9599 | 5290 | { |
4025c288 | 5291 | if (info->level == 1) |
5551b113 | 5292 | return size * 2; |
4025c288 | 5293 | else |
5551b113 | 5294 | return (size * 2) & ~(info_to_blocks_per_strip(info) - 1); |
fcfd9599 DW |
5295 | } |
5296 | ||
4d1313e9 DW |
5297 | static void imsm_update_version_info(struct intel_super *super) |
5298 | { | |
5299 | /* update the version and attributes */ | |
5300 | struct imsm_super *mpb = super->anchor; | |
5301 | char *version; | |
5302 | struct imsm_dev *dev; | |
5303 | struct imsm_map *map; | |
5304 | int i; | |
5305 | ||
5306 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
5307 | dev = get_imsm_dev(super, i); | |
238c0a71 | 5308 | map = get_imsm_map(dev, MAP_0); |
4d1313e9 DW |
5309 | if (__le32_to_cpu(dev->size_high) > 0) |
5310 | mpb->attributes |= MPB_ATTRIB_2TB; | |
5311 | ||
5312 | /* FIXME detect when an array spans a port multiplier */ | |
5313 | #if 0 | |
5314 | mpb->attributes |= MPB_ATTRIB_PM; | |
5315 | #endif | |
5316 | ||
5317 | if (mpb->num_raid_devs > 1 || | |
5318 | mpb->attributes != MPB_ATTRIB_CHECKSUM_VERIFY) { | |
5319 | version = MPB_VERSION_ATTRIBS; | |
5320 | switch (get_imsm_raid_level(map)) { | |
5321 | case 0: mpb->attributes |= MPB_ATTRIB_RAID0; break; | |
5322 | case 1: mpb->attributes |= MPB_ATTRIB_RAID1; break; | |
5323 | case 10: mpb->attributes |= MPB_ATTRIB_RAID10; break; | |
5324 | case 5: mpb->attributes |= MPB_ATTRIB_RAID5; break; | |
5325 | } | |
5326 | } else { | |
5327 | if (map->num_members >= 5) | |
5328 | version = MPB_VERSION_5OR6_DISK_ARRAY; | |
5329 | else if (dev->status == DEV_CLONE_N_GO) | |
5330 | version = MPB_VERSION_CNG; | |
5331 | else if (get_imsm_raid_level(map) == 5) | |
5332 | version = MPB_VERSION_RAID5; | |
5333 | else if (map->num_members >= 3) | |
5334 | version = MPB_VERSION_3OR4_DISK_ARRAY; | |
5335 | else if (get_imsm_raid_level(map) == 1) | |
5336 | version = MPB_VERSION_RAID1; | |
5337 | else | |
5338 | version = MPB_VERSION_RAID0; | |
5339 | } | |
5340 | strcpy(((char *) mpb->sig) + strlen(MPB_SIGNATURE), version); | |
5341 | } | |
5342 | } | |
5343 | ||
aa534678 DW |
5344 | static int check_name(struct intel_super *super, char *name, int quiet) |
5345 | { | |
5346 | struct imsm_super *mpb = super->anchor; | |
5347 | char *reason = NULL; | |
9bd99a90 RS |
5348 | char *start = name; |
5349 | size_t len = strlen(name); | |
aa534678 DW |
5350 | int i; |
5351 | ||
9bd99a90 RS |
5352 | if (len > 0) { |
5353 | while (isspace(start[len - 1])) | |
5354 | start[--len] = 0; | |
5355 | while (*start && isspace(*start)) | |
5356 | ++start, --len; | |
5357 | memmove(name, start, len + 1); | |
5358 | } | |
5359 | ||
5360 | if (len > MAX_RAID_SERIAL_LEN) | |
aa534678 | 5361 | reason = "must be 16 characters or less"; |
9bd99a90 RS |
5362 | else if (len == 0) |
5363 | reason = "must be a non-empty string"; | |
aa534678 DW |
5364 | |
5365 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
5366 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
5367 | ||
5368 | if (strncmp((char *) dev->volume, name, MAX_RAID_SERIAL_LEN) == 0) { | |
5369 | reason = "already exists"; | |
5370 | break; | |
5371 | } | |
5372 | } | |
5373 | ||
5374 | if (reason && !quiet) | |
e7b84f9d | 5375 | pr_err("imsm volume name %s\n", reason); |
aa534678 DW |
5376 | |
5377 | return !reason; | |
5378 | } | |
5379 | ||
8b353278 | 5380 | static int init_super_imsm_volume(struct supertype *st, mdu_array_info_t *info, |
5308f117 | 5381 | struct shape *s, char *name, |
83cd1e97 N |
5382 | char *homehost, int *uuid, |
5383 | long long data_offset) | |
cdddbdbc | 5384 | { |
c2c087e6 DW |
5385 | /* We are creating a volume inside a pre-existing container. |
5386 | * so st->sb is already set. | |
5387 | */ | |
5388 | struct intel_super *super = st->sb; | |
f36a9ecd | 5389 | unsigned int sector_size = super->sector_size; |
949c47a0 | 5390 | struct imsm_super *mpb = super->anchor; |
ba2de7ba | 5391 | struct intel_dev *dv; |
c2c087e6 DW |
5392 | struct imsm_dev *dev; |
5393 | struct imsm_vol *vol; | |
5394 | struct imsm_map *map; | |
5395 | int idx = mpb->num_raid_devs; | |
5396 | int i; | |
760365f9 | 5397 | int namelen; |
c2c087e6 | 5398 | unsigned long long array_blocks; |
2c092cad | 5399 | size_t size_old, size_new; |
5551b113 | 5400 | unsigned long long num_data_stripes; |
b53bfba6 TM |
5401 | unsigned int data_disks; |
5402 | unsigned long long size_per_member; | |
cdddbdbc | 5403 | |
88c32bb1 | 5404 | if (super->orom && mpb->num_raid_devs >= super->orom->vpa) { |
7a862a02 | 5405 | pr_err("This imsm-container already has the maximum of %d volumes\n", super->orom->vpa); |
c2c087e6 DW |
5406 | return 0; |
5407 | } | |
5408 | ||
2c092cad DW |
5409 | /* ensure the mpb is large enough for the new data */ |
5410 | size_old = __le32_to_cpu(mpb->mpb_size); | |
5411 | size_new = disks_to_mpb_size(info->nr_disks); | |
5412 | if (size_new > size_old) { | |
5413 | void *mpb_new; | |
f36a9ecd | 5414 | size_t size_round = ROUND_UP(size_new, sector_size); |
2c092cad | 5415 | |
f36a9ecd | 5416 | if (posix_memalign(&mpb_new, sector_size, size_round) != 0) { |
e7b84f9d | 5417 | pr_err("could not allocate new mpb\n"); |
2c092cad DW |
5418 | return 0; |
5419 | } | |
85337573 AO |
5420 | if (posix_memalign(&super->migr_rec_buf, MAX_SECTOR_SIZE, |
5421 | MIGR_REC_BUF_SECTORS* | |
5422 | MAX_SECTOR_SIZE) != 0) { | |
1ade5cc1 | 5423 | pr_err("could not allocate migr_rec buffer\n"); |
8e59f3d8 AK |
5424 | free(super->buf); |
5425 | free(super); | |
ea944c8f | 5426 | free(mpb_new); |
8e59f3d8 AK |
5427 | return 0; |
5428 | } | |
2c092cad DW |
5429 | memcpy(mpb_new, mpb, size_old); |
5430 | free(mpb); | |
5431 | mpb = mpb_new; | |
949c47a0 | 5432 | super->anchor = mpb_new; |
2c092cad DW |
5433 | mpb->mpb_size = __cpu_to_le32(size_new); |
5434 | memset(mpb_new + size_old, 0, size_round - size_old); | |
bbab0940 | 5435 | super->len = size_round; |
2c092cad | 5436 | } |
bf5a934a | 5437 | super->current_vol = idx; |
3960e579 DW |
5438 | |
5439 | /* handle 'failed_disks' by either: | |
5440 | * a) create dummy disk entries in the table if this the first | |
5441 | * volume in the array. We add them here as this is the only | |
5442 | * opportunity to add them. add_to_super_imsm_volume() | |
5443 | * handles the non-failed disks and continues incrementing | |
5444 | * mpb->num_disks. | |
5445 | * b) validate that 'failed_disks' matches the current number | |
5446 | * of missing disks if the container is populated | |
d23fe947 | 5447 | */ |
3960e579 | 5448 | if (super->current_vol == 0) { |
d23fe947 | 5449 | mpb->num_disks = 0; |
3960e579 DW |
5450 | for (i = 0; i < info->failed_disks; i++) { |
5451 | struct imsm_disk *disk; | |
5452 | ||
5453 | mpb->num_disks++; | |
5454 | disk = __get_imsm_disk(mpb, i); | |
5455 | disk->status = CONFIGURED_DISK | FAILED_DISK; | |
5456 | disk->scsi_id = __cpu_to_le32(~(__u32)0); | |
5457 | snprintf((char *) disk->serial, MAX_RAID_SERIAL_LEN, | |
5b975129 | 5458 | "missing:%d", (__u8)i); |
3960e579 DW |
5459 | } |
5460 | find_missing(super); | |
5461 | } else { | |
5462 | int missing = 0; | |
5463 | struct dl *d; | |
5464 | ||
5465 | for (d = super->missing; d; d = d->next) | |
5466 | missing++; | |
5467 | if (info->failed_disks > missing) { | |
e7b84f9d | 5468 | pr_err("unable to add 'missing' disk to container\n"); |
3960e579 DW |
5469 | return 0; |
5470 | } | |
5471 | } | |
5a038140 | 5472 | |
aa534678 DW |
5473 | if (!check_name(super, name, 0)) |
5474 | return 0; | |
503975b9 N |
5475 | dv = xmalloc(sizeof(*dv)); |
5476 | dev = xcalloc(1, sizeof(*dev) + sizeof(__u32) * (info->raid_disks - 1)); | |
760365f9 JS |
5477 | /* |
5478 | * Explicitly allow truncating to not confuse gcc's | |
5479 | * -Werror=stringop-truncation | |
5480 | */ | |
5481 | namelen = min((int) strlen(name), MAX_RAID_SERIAL_LEN); | |
5482 | memcpy(dev->volume, name, namelen); | |
e03640bd | 5483 | array_blocks = calc_array_size(info->level, info->raid_disks, |
03bcbc65 | 5484 | info->layout, info->chunk_size, |
b53bfba6 TM |
5485 | s->size * BLOCKS_PER_KB); |
5486 | data_disks = get_data_disks(info->level, info->layout, | |
5487 | info->raid_disks); | |
5488 | array_blocks = round_size_to_mb(array_blocks, data_disks); | |
5489 | size_per_member = array_blocks / data_disks; | |
979d38be | 5490 | |
fcc2c9da | 5491 | set_imsm_dev_size(dev, array_blocks); |
1a2487c2 | 5492 | dev->status = (DEV_READ_COALESCING | DEV_WRITE_COALESCING); |
c2c087e6 DW |
5493 | vol = &dev->vol; |
5494 | vol->migr_state = 0; | |
1484e727 | 5495 | set_migr_type(dev, MIGR_INIT); |
3960e579 | 5496 | vol->dirty = !info->state; |
f8f603f1 | 5497 | vol->curr_migr_unit = 0; |
238c0a71 | 5498 | map = get_imsm_map(dev, MAP_0); |
5551b113 | 5499 | set_pba_of_lba0(map, super->create_offset); |
ef6ffade | 5500 | map->blocks_per_strip = __cpu_to_le16(info_to_blocks_per_strip(info)); |
0556e1a2 | 5501 | map->failed_disk_num = ~0; |
bf4442ab | 5502 | if (info->level > 0) |
fffaf1ff N |
5503 | map->map_state = (info->state ? IMSM_T_STATE_NORMAL |
5504 | : IMSM_T_STATE_UNINITIALIZED); | |
bf4442ab AK |
5505 | else |
5506 | map->map_state = info->failed_disks ? IMSM_T_STATE_FAILED : | |
5507 | IMSM_T_STATE_NORMAL; | |
252d23c0 | 5508 | map->ddf = 1; |
ef6ffade DW |
5509 | |
5510 | if (info->level == 1 && info->raid_disks > 2) { | |
38950822 AW |
5511 | free(dev); |
5512 | free(dv); | |
7a862a02 | 5513 | pr_err("imsm does not support more than 2 disksin a raid1 volume\n"); |
ef6ffade DW |
5514 | return 0; |
5515 | } | |
81062a36 DW |
5516 | |
5517 | map->raid_level = info->level; | |
4d1313e9 | 5518 | if (info->level == 10) { |
c2c087e6 | 5519 | map->raid_level = 1; |
4d1313e9 | 5520 | map->num_domains = info->raid_disks / 2; |
81062a36 DW |
5521 | } else if (info->level == 1) |
5522 | map->num_domains = info->raid_disks; | |
5523 | else | |
ff596308 | 5524 | map->num_domains = 1; |
81062a36 | 5525 | |
5551b113 | 5526 | /* info->size is only int so use the 'size' parameter instead */ |
b53bfba6 | 5527 | num_data_stripes = size_per_member / info_to_blocks_per_strip(info); |
5551b113 CA |
5528 | num_data_stripes /= map->num_domains; |
5529 | set_num_data_stripes(map, num_data_stripes); | |
ef6ffade | 5530 | |
44490938 MD |
5531 | size_per_member += NUM_BLOCKS_DIRTY_STRIPE_REGION; |
5532 | set_blocks_per_member(map, info_to_blocks_per_member(info, | |
5533 | size_per_member / | |
5534 | BLOCKS_PER_KB)); | |
5535 | ||
c2c087e6 DW |
5536 | map->num_members = info->raid_disks; |
5537 | for (i = 0; i < map->num_members; i++) { | |
5538 | /* initialized in add_to_super */ | |
4eb26970 | 5539 | set_imsm_ord_tbl_ent(map, i, IMSM_ORD_REBUILD); |
c2c087e6 | 5540 | } |
949c47a0 | 5541 | mpb->num_raid_devs++; |
2a24dc1b PB |
5542 | mpb->num_raid_devs_created++; |
5543 | dev->my_vol_raid_dev_num = mpb->num_raid_devs_created; | |
ba2de7ba | 5544 | |
b7580566 | 5545 | if (s->consistency_policy <= CONSISTENCY_POLICY_RESYNC) { |
c2462068 | 5546 | dev->rwh_policy = RWH_MULTIPLE_OFF; |
2432ce9b | 5547 | } else if (s->consistency_policy == CONSISTENCY_POLICY_PPL) { |
c2462068 | 5548 | dev->rwh_policy = RWH_MULTIPLE_DISTRIBUTED; |
2432ce9b AP |
5549 | } else { |
5550 | free(dev); | |
5551 | free(dv); | |
5552 | pr_err("imsm does not support consistency policy %s\n", | |
5553 | map_num(consistency_policies, s->consistency_policy)); | |
5554 | return 0; | |
5555 | } | |
5556 | ||
ba2de7ba DW |
5557 | dv->dev = dev; |
5558 | dv->index = super->current_vol; | |
5559 | dv->next = super->devlist; | |
5560 | super->devlist = dv; | |
c2c087e6 | 5561 | |
4d1313e9 DW |
5562 | imsm_update_version_info(super); |
5563 | ||
c2c087e6 | 5564 | return 1; |
cdddbdbc DW |
5565 | } |
5566 | ||
bf5a934a | 5567 | static int init_super_imsm(struct supertype *st, mdu_array_info_t *info, |
5308f117 | 5568 | struct shape *s, char *name, |
83cd1e97 N |
5569 | char *homehost, int *uuid, |
5570 | unsigned long long data_offset) | |
bf5a934a DW |
5571 | { |
5572 | /* This is primarily called by Create when creating a new array. | |
5573 | * We will then get add_to_super called for each component, and then | |
5574 | * write_init_super called to write it out to each device. | |
5575 | * For IMSM, Create can create on fresh devices or on a pre-existing | |
5576 | * array. | |
5577 | * To create on a pre-existing array a different method will be called. | |
5578 | * This one is just for fresh drives. | |
5579 | */ | |
5580 | struct intel_super *super; | |
5581 | struct imsm_super *mpb; | |
5582 | size_t mpb_size; | |
4d1313e9 | 5583 | char *version; |
bf5a934a | 5584 | |
83cd1e97 | 5585 | if (data_offset != INVALID_SECTORS) { |
ed503f89 | 5586 | pr_err("data-offset not supported by imsm\n"); |
83cd1e97 N |
5587 | return 0; |
5588 | } | |
5589 | ||
bf5a934a | 5590 | if (st->sb) |
5308f117 | 5591 | return init_super_imsm_volume(st, info, s, name, homehost, uuid, |
83cd1e97 | 5592 | data_offset); |
e683ca88 DW |
5593 | |
5594 | if (info) | |
5595 | mpb_size = disks_to_mpb_size(info->nr_disks); | |
5596 | else | |
f36a9ecd | 5597 | mpb_size = MAX_SECTOR_SIZE; |
bf5a934a | 5598 | |
49133e57 | 5599 | super = alloc_super(); |
f36a9ecd PB |
5600 | if (super && |
5601 | posix_memalign(&super->buf, MAX_SECTOR_SIZE, mpb_size) != 0) { | |
8d67477f | 5602 | free_imsm(super); |
e683ca88 DW |
5603 | super = NULL; |
5604 | } | |
5605 | if (!super) { | |
1ade5cc1 | 5606 | pr_err("could not allocate superblock\n"); |
bf5a934a DW |
5607 | return 0; |
5608 | } | |
de44e46f PB |
5609 | if (posix_memalign(&super->migr_rec_buf, MAX_SECTOR_SIZE, |
5610 | MIGR_REC_BUF_SECTORS*MAX_SECTOR_SIZE) != 0) { | |
1ade5cc1 | 5611 | pr_err("could not allocate migr_rec buffer\n"); |
8e59f3d8 | 5612 | free(super->buf); |
8d67477f | 5613 | free_imsm(super); |
8e59f3d8 AK |
5614 | return 0; |
5615 | } | |
e683ca88 | 5616 | memset(super->buf, 0, mpb_size); |
ef649044 | 5617 | mpb = super->buf; |
e683ca88 DW |
5618 | mpb->mpb_size = __cpu_to_le32(mpb_size); |
5619 | st->sb = super; | |
5620 | ||
5621 | if (info == NULL) { | |
5622 | /* zeroing superblock */ | |
5623 | return 0; | |
5624 | } | |
bf5a934a | 5625 | |
4d1313e9 DW |
5626 | mpb->attributes = MPB_ATTRIB_CHECKSUM_VERIFY; |
5627 | ||
5628 | version = (char *) mpb->sig; | |
5629 | strcpy(version, MPB_SIGNATURE); | |
5630 | version += strlen(MPB_SIGNATURE); | |
5631 | strcpy(version, MPB_VERSION_RAID0); | |
bf5a934a | 5632 | |
bf5a934a DW |
5633 | return 1; |
5634 | } | |
5635 | ||
f2cc4f7d AO |
5636 | static int drive_validate_sector_size(struct intel_super *super, struct dl *dl) |
5637 | { | |
5638 | unsigned int member_sector_size; | |
5639 | ||
5640 | if (dl->fd < 0) { | |
5641 | pr_err("Invalid file descriptor for %s\n", dl->devname); | |
5642 | return 0; | |
5643 | } | |
5644 | ||
5645 | if (!get_dev_sector_size(dl->fd, dl->devname, &member_sector_size)) | |
5646 | return 0; | |
5647 | if (member_sector_size != super->sector_size) | |
5648 | return 0; | |
5649 | return 1; | |
5650 | } | |
5651 | ||
f20c3968 | 5652 | static int add_to_super_imsm_volume(struct supertype *st, mdu_disk_info_t *dk, |
bf5a934a DW |
5653 | int fd, char *devname) |
5654 | { | |
5655 | struct intel_super *super = st->sb; | |
d23fe947 | 5656 | struct imsm_super *mpb = super->anchor; |
3960e579 | 5657 | struct imsm_disk *_disk; |
bf5a934a DW |
5658 | struct imsm_dev *dev; |
5659 | struct imsm_map *map; | |
3960e579 | 5660 | struct dl *dl, *df; |
4eb26970 | 5661 | int slot; |
bf5a934a | 5662 | |
949c47a0 | 5663 | dev = get_imsm_dev(super, super->current_vol); |
238c0a71 | 5664 | map = get_imsm_map(dev, MAP_0); |
bf5a934a | 5665 | |
208933a7 | 5666 | if (! (dk->state & (1<<MD_DISK_SYNC))) { |
e7b84f9d | 5667 | pr_err("%s: Cannot add spare devices to IMSM volume\n", |
208933a7 N |
5668 | devname); |
5669 | return 1; | |
5670 | } | |
5671 | ||
efb30e7f DW |
5672 | if (fd == -1) { |
5673 | /* we're doing autolayout so grab the pre-marked (in | |
5674 | * validate_geometry) raid_disk | |
5675 | */ | |
5676 | for (dl = super->disks; dl; dl = dl->next) | |
5677 | if (dl->raiddisk == dk->raid_disk) | |
5678 | break; | |
5679 | } else { | |
5680 | for (dl = super->disks; dl ; dl = dl->next) | |
5681 | if (dl->major == dk->major && | |
5682 | dl->minor == dk->minor) | |
5683 | break; | |
5684 | } | |
d23fe947 | 5685 | |
208933a7 | 5686 | if (!dl) { |
e7b84f9d | 5687 | pr_err("%s is not a member of the same container\n", devname); |
f20c3968 | 5688 | return 1; |
208933a7 | 5689 | } |
bf5a934a | 5690 | |
59632db9 MZ |
5691 | if (mpb->num_disks == 0) |
5692 | if (!get_dev_sector_size(dl->fd, dl->devname, | |
5693 | &super->sector_size)) | |
5694 | return 1; | |
5695 | ||
f2cc4f7d AO |
5696 | if (!drive_validate_sector_size(super, dl)) { |
5697 | pr_err("Combining drives of different sector size in one volume is not allowed\n"); | |
5698 | return 1; | |
5699 | } | |
5700 | ||
d23fe947 DW |
5701 | /* add a pristine spare to the metadata */ |
5702 | if (dl->index < 0) { | |
5703 | dl->index = super->anchor->num_disks; | |
5704 | super->anchor->num_disks++; | |
5705 | } | |
4eb26970 DW |
5706 | /* Check the device has not already been added */ |
5707 | slot = get_imsm_disk_slot(map, dl->index); | |
5708 | if (slot >= 0 && | |
238c0a71 | 5709 | (get_imsm_ord_tbl_ent(dev, slot, MAP_X) & IMSM_ORD_REBUILD) == 0) { |
e7b84f9d | 5710 | pr_err("%s has been included in this array twice\n", |
4eb26970 DW |
5711 | devname); |
5712 | return 1; | |
5713 | } | |
656b6b5a | 5714 | set_imsm_ord_tbl_ent(map, dk->raid_disk, dl->index); |
ee5aad5a | 5715 | dl->disk.status = CONFIGURED_DISK; |
d23fe947 | 5716 | |
3960e579 DW |
5717 | /* update size of 'missing' disks to be at least as large as the |
5718 | * largest acitve member (we only have dummy missing disks when | |
5719 | * creating the first volume) | |
5720 | */ | |
5721 | if (super->current_vol == 0) { | |
5722 | for (df = super->missing; df; df = df->next) { | |
5551b113 CA |
5723 | if (total_blocks(&dl->disk) > total_blocks(&df->disk)) |
5724 | set_total_blocks(&df->disk, total_blocks(&dl->disk)); | |
3960e579 DW |
5725 | _disk = __get_imsm_disk(mpb, df->index); |
5726 | *_disk = df->disk; | |
5727 | } | |
5728 | } | |
5729 | ||
5730 | /* refresh unset/failed slots to point to valid 'missing' entries */ | |
5731 | for (df = super->missing; df; df = df->next) | |
5732 | for (slot = 0; slot < mpb->num_disks; slot++) { | |
238c0a71 | 5733 | __u32 ord = get_imsm_ord_tbl_ent(dev, slot, MAP_X); |
3960e579 DW |
5734 | |
5735 | if ((ord & IMSM_ORD_REBUILD) == 0) | |
5736 | continue; | |
5737 | set_imsm_ord_tbl_ent(map, slot, df->index | IMSM_ORD_REBUILD); | |
1ace8403 | 5738 | if (is_gen_migration(dev)) { |
238c0a71 AK |
5739 | struct imsm_map *map2 = get_imsm_map(dev, |
5740 | MAP_1); | |
0a108d63 | 5741 | int slot2 = get_imsm_disk_slot(map2, df->index); |
089f9d79 | 5742 | if (slot2 < map2->num_members && slot2 >= 0) { |
1ace8403 | 5743 | __u32 ord2 = get_imsm_ord_tbl_ent(dev, |
238c0a71 AK |
5744 | slot2, |
5745 | MAP_1); | |
1ace8403 AK |
5746 | if ((unsigned)df->index == |
5747 | ord_to_idx(ord2)) | |
5748 | set_imsm_ord_tbl_ent(map2, | |
0a108d63 | 5749 | slot2, |
1ace8403 AK |
5750 | df->index | |
5751 | IMSM_ORD_REBUILD); | |
5752 | } | |
5753 | } | |
3960e579 DW |
5754 | dprintf("set slot:%d to missing disk:%d\n", slot, df->index); |
5755 | break; | |
5756 | } | |
5757 | ||
d23fe947 DW |
5758 | /* if we are creating the first raid device update the family number */ |
5759 | if (super->current_vol == 0) { | |
5760 | __u32 sum; | |
5761 | struct imsm_dev *_dev = __get_imsm_dev(mpb, 0); | |
d23fe947 | 5762 | |
3960e579 | 5763 | _disk = __get_imsm_disk(mpb, dl->index); |
791b666a | 5764 | if (!_dev || !_disk) { |
e7b84f9d | 5765 | pr_err("BUG mpb setup error\n"); |
791b666a AW |
5766 | return 1; |
5767 | } | |
d23fe947 DW |
5768 | *_dev = *dev; |
5769 | *_disk = dl->disk; | |
148acb7b DW |
5770 | sum = random32(); |
5771 | sum += __gen_imsm_checksum(mpb); | |
d23fe947 | 5772 | mpb->family_num = __cpu_to_le32(sum); |
148acb7b | 5773 | mpb->orig_family_num = mpb->family_num; |
e48aed3c | 5774 | mpb->creation_time = __cpu_to_le64((__u64)time(NULL)); |
d23fe947 | 5775 | } |
ca0748fa | 5776 | super->current_disk = dl; |
f20c3968 | 5777 | return 0; |
bf5a934a DW |
5778 | } |
5779 | ||
a8619d23 AK |
5780 | /* mark_spare() |
5781 | * Function marks disk as spare and restores disk serial | |
5782 | * in case it was previously marked as failed by takeover operation | |
5783 | * reruns: | |
5784 | * -1 : critical error | |
5785 | * 0 : disk is marked as spare but serial is not set | |
5786 | * 1 : success | |
5787 | */ | |
5788 | int mark_spare(struct dl *disk) | |
5789 | { | |
5790 | __u8 serial[MAX_RAID_SERIAL_LEN]; | |
5791 | int ret_val = -1; | |
5792 | ||
5793 | if (!disk) | |
5794 | return ret_val; | |
5795 | ||
5796 | ret_val = 0; | |
6da53c0e | 5797 | if (!imsm_read_serial(disk->fd, NULL, serial, MAX_RAID_SERIAL_LEN)) { |
a8619d23 AK |
5798 | /* Restore disk serial number, because takeover marks disk |
5799 | * as failed and adds to serial ':0' before it becomes | |
5800 | * a spare disk. | |
5801 | */ | |
5802 | serialcpy(disk->serial, serial); | |
5803 | serialcpy(disk->disk.serial, serial); | |
5804 | ret_val = 1; | |
5805 | } | |
5806 | disk->disk.status = SPARE_DISK; | |
5807 | disk->index = -1; | |
5808 | ||
5809 | return ret_val; | |
5810 | } | |
88654014 | 5811 | |
12724c01 TM |
5812 | |
5813 | static int write_super_imsm_spare(struct intel_super *super, struct dl *d); | |
5814 | ||
f20c3968 | 5815 | static int add_to_super_imsm(struct supertype *st, mdu_disk_info_t *dk, |
72ca9bcf N |
5816 | int fd, char *devname, |
5817 | unsigned long long data_offset) | |
cdddbdbc | 5818 | { |
c2c087e6 | 5819 | struct intel_super *super = st->sb; |
c2c087e6 DW |
5820 | struct dl *dd; |
5821 | unsigned long long size; | |
fa7bb6f8 | 5822 | unsigned int member_sector_size; |
f2f27e63 | 5823 | __u32 id; |
c2c087e6 DW |
5824 | int rv; |
5825 | struct stat stb; | |
5826 | ||
88654014 LM |
5827 | /* If we are on an RAID enabled platform check that the disk is |
5828 | * attached to the raid controller. | |
5829 | * We do not need to test disks attachment for container based additions, | |
5830 | * they shall be already tested when container was created/assembled. | |
88c32bb1 | 5831 | */ |
d424212e | 5832 | rv = find_intel_hba_capability(fd, super, devname); |
f2f5c343 | 5833 | /* no orom/efi or non-intel hba of the disk */ |
f0f5a016 LM |
5834 | if (rv != 0) { |
5835 | dprintf("capability: %p fd: %d ret: %d\n", | |
5836 | super->orom, fd, rv); | |
5837 | return 1; | |
88c32bb1 DW |
5838 | } |
5839 | ||
f20c3968 DW |
5840 | if (super->current_vol >= 0) |
5841 | return add_to_super_imsm_volume(st, dk, fd, devname); | |
bf5a934a | 5842 | |
c2c087e6 | 5843 | fstat(fd, &stb); |
503975b9 | 5844 | dd = xcalloc(sizeof(*dd), 1); |
c2c087e6 DW |
5845 | dd->major = major(stb.st_rdev); |
5846 | dd->minor = minor(stb.st_rdev); | |
503975b9 | 5847 | dd->devname = devname ? xstrdup(devname) : NULL; |
c2c087e6 | 5848 | dd->fd = fd; |
689c9bf3 | 5849 | dd->e = NULL; |
1a64be56 | 5850 | dd->action = DISK_ADD; |
6da53c0e | 5851 | rv = imsm_read_serial(fd, devname, dd->serial, MAX_RAID_SERIAL_LEN); |
32ba9157 | 5852 | if (rv) { |
e7b84f9d | 5853 | pr_err("failed to retrieve scsi serial, aborting\n"); |
20bee0f8 PB |
5854 | if (dd->devname) |
5855 | free(dd->devname); | |
949c47a0 | 5856 | free(dd); |
0030e8d6 | 5857 | abort(); |
c2c087e6 | 5858 | } |
20bee0f8 PB |
5859 | if (super->hba && ((super->hba->type == SYS_DEV_NVME) || |
5860 | (super->hba->type == SYS_DEV_VMD))) { | |
5861 | int i; | |
5862 | char *devpath = diskfd_to_devpath(fd); | |
5863 | char controller_path[PATH_MAX]; | |
5864 | ||
5865 | if (!devpath) { | |
5866 | pr_err("failed to get devpath, aborting\n"); | |
5867 | if (dd->devname) | |
5868 | free(dd->devname); | |
5869 | free(dd); | |
5870 | return 1; | |
5871 | } | |
5872 | ||
5873 | snprintf(controller_path, PATH_MAX-1, "%s/device", devpath); | |
5874 | free(devpath); | |
5875 | ||
5876 | if (devpath_to_vendor(controller_path) == 0x8086) { | |
5877 | /* | |
5878 | * If Intel's NVMe drive has serial ended with | |
5879 | * "-A","-B","-1" or "-2" it means that this is "x8" | |
5880 | * device (double drive on single PCIe card). | |
5881 | * User should be warned about potential data loss. | |
5882 | */ | |
5883 | for (i = MAX_RAID_SERIAL_LEN-1; i > 0; i--) { | |
5884 | /* Skip empty character at the end */ | |
5885 | if (dd->serial[i] == 0) | |
5886 | continue; | |
5887 | ||
5888 | if (((dd->serial[i] == 'A') || | |
5889 | (dd->serial[i] == 'B') || | |
5890 | (dd->serial[i] == '1') || | |
5891 | (dd->serial[i] == '2')) && | |
5892 | (dd->serial[i-1] == '-')) | |
5893 | pr_err("\tThe action you are about to take may put your data at risk.\n" | |
5894 | "\tPlease note that x8 devices may consist of two separate x4 devices " | |
5895 | "located on a single PCIe port.\n" | |
5896 | "\tRAID 0 is the only supported configuration for this type of x8 device.\n"); | |
5897 | break; | |
5898 | } | |
32716c51 PB |
5899 | } else if (super->hba->type == SYS_DEV_VMD && super->orom && |
5900 | !imsm_orom_has_tpv_support(super->orom)) { | |
5901 | pr_err("\tPlatform configuration does not support non-Intel NVMe drives.\n" | |
8b751247 | 5902 | "\tPlease refer to Intel(R) RSTe/VROC user guide.\n"); |
32716c51 PB |
5903 | free(dd->devname); |
5904 | free(dd); | |
5905 | return 1; | |
20bee0f8 PB |
5906 | } |
5907 | } | |
c2c087e6 | 5908 | |
c2c087e6 | 5909 | get_dev_size(fd, NULL, &size); |
fa7bb6f8 PB |
5910 | get_dev_sector_size(fd, NULL, &member_sector_size); |
5911 | ||
5912 | if (super->sector_size == 0) { | |
5913 | /* this a first device, so sector_size is not set yet */ | |
5914 | super->sector_size = member_sector_size; | |
fa7bb6f8 PB |
5915 | } |
5916 | ||
71e5411e | 5917 | /* clear migr_rec when adding disk to container */ |
85337573 AO |
5918 | memset(super->migr_rec_buf, 0, MIGR_REC_BUF_SECTORS*MAX_SECTOR_SIZE); |
5919 | if (lseek64(fd, size - MIGR_REC_SECTOR_POSITION*member_sector_size, | |
de44e46f | 5920 | SEEK_SET) >= 0) { |
466070ad | 5921 | if ((unsigned int)write(fd, super->migr_rec_buf, |
85337573 AO |
5922 | MIGR_REC_BUF_SECTORS*member_sector_size) != |
5923 | MIGR_REC_BUF_SECTORS*member_sector_size) | |
71e5411e PB |
5924 | perror("Write migr_rec failed"); |
5925 | } | |
5926 | ||
c2c087e6 | 5927 | size /= 512; |
1f24f035 | 5928 | serialcpy(dd->disk.serial, dd->serial); |
5551b113 CA |
5929 | set_total_blocks(&dd->disk, size); |
5930 | if (__le32_to_cpu(dd->disk.total_blocks_hi) > 0) { | |
5931 | struct imsm_super *mpb = super->anchor; | |
5932 | mpb->attributes |= MPB_ATTRIB_2TB_DISK; | |
5933 | } | |
a8619d23 | 5934 | mark_spare(dd); |
c2c087e6 | 5935 | if (sysfs_disk_to_scsi_id(fd, &id) == 0) |
b9f594fe | 5936 | dd->disk.scsi_id = __cpu_to_le32(id); |
c2c087e6 | 5937 | else |
b9f594fe | 5938 | dd->disk.scsi_id = __cpu_to_le32(0); |
43dad3d6 DW |
5939 | |
5940 | if (st->update_tail) { | |
1a64be56 LM |
5941 | dd->next = super->disk_mgmt_list; |
5942 | super->disk_mgmt_list = dd; | |
43dad3d6 | 5943 | } else { |
12724c01 TM |
5944 | /* this is called outside of mdmon |
5945 | * write initial spare metadata | |
5946 | * mdmon will overwrite it. | |
5947 | */ | |
43dad3d6 DW |
5948 | dd->next = super->disks; |
5949 | super->disks = dd; | |
12724c01 | 5950 | write_super_imsm_spare(super, dd); |
43dad3d6 | 5951 | } |
f20c3968 DW |
5952 | |
5953 | return 0; | |
cdddbdbc DW |
5954 | } |
5955 | ||
1a64be56 LM |
5956 | static int remove_from_super_imsm(struct supertype *st, mdu_disk_info_t *dk) |
5957 | { | |
5958 | struct intel_super *super = st->sb; | |
5959 | struct dl *dd; | |
5960 | ||
5961 | /* remove from super works only in mdmon - for communication | |
5962 | * manager - monitor. Check if communication memory buffer | |
5963 | * is prepared. | |
5964 | */ | |
5965 | if (!st->update_tail) { | |
1ade5cc1 | 5966 | pr_err("shall be used in mdmon context only\n"); |
1a64be56 LM |
5967 | return 1; |
5968 | } | |
503975b9 | 5969 | dd = xcalloc(1, sizeof(*dd)); |
1a64be56 LM |
5970 | dd->major = dk->major; |
5971 | dd->minor = dk->minor; | |
1a64be56 | 5972 | dd->fd = -1; |
a8619d23 | 5973 | mark_spare(dd); |
1a64be56 LM |
5974 | dd->action = DISK_REMOVE; |
5975 | ||
5976 | dd->next = super->disk_mgmt_list; | |
5977 | super->disk_mgmt_list = dd; | |
5978 | ||
1a64be56 LM |
5979 | return 0; |
5980 | } | |
5981 | ||
f796af5d DW |
5982 | static int store_imsm_mpb(int fd, struct imsm_super *mpb); |
5983 | ||
5984 | static union { | |
f36a9ecd | 5985 | char buf[MAX_SECTOR_SIZE]; |
f796af5d | 5986 | struct imsm_super anchor; |
f36a9ecd | 5987 | } spare_record __attribute__ ((aligned(MAX_SECTOR_SIZE))); |
c2c087e6 | 5988 | |
12724c01 TM |
5989 | |
5990 | static int write_super_imsm_spare(struct intel_super *super, struct dl *d) | |
d23fe947 | 5991 | { |
d23fe947 | 5992 | struct imsm_super *mpb = super->anchor; |
f796af5d | 5993 | struct imsm_super *spare = &spare_record.anchor; |
d23fe947 | 5994 | __u32 sum; |
12724c01 TM |
5995 | |
5996 | if (d->index != -1) | |
5997 | return 1; | |
d23fe947 | 5998 | |
68641cdb JS |
5999 | spare->mpb_size = __cpu_to_le32(sizeof(struct imsm_super)); |
6000 | spare->generation_num = __cpu_to_le32(1UL); | |
f796af5d | 6001 | spare->attributes = MPB_ATTRIB_CHECKSUM_VERIFY; |
68641cdb JS |
6002 | spare->num_disks = 1; |
6003 | spare->num_raid_devs = 0; | |
6004 | spare->cache_size = mpb->cache_size; | |
6005 | spare->pwr_cycle_count = __cpu_to_le32(1); | |
f796af5d DW |
6006 | |
6007 | snprintf((char *) spare->sig, MAX_SIGNATURE_LENGTH, | |
6008 | MPB_SIGNATURE MPB_VERSION_RAID0); | |
d23fe947 | 6009 | |
12724c01 TM |
6010 | spare->disk[0] = d->disk; |
6011 | if (__le32_to_cpu(d->disk.total_blocks_hi) > 0) | |
6012 | spare->attributes |= MPB_ATTRIB_2TB_DISK; | |
6013 | ||
6014 | if (super->sector_size == 4096) | |
6015 | convert_to_4k_imsm_disk(&spare->disk[0]); | |
d23fe947 | 6016 | |
12724c01 TM |
6017 | sum = __gen_imsm_checksum(spare); |
6018 | spare->family_num = __cpu_to_le32(sum); | |
6019 | spare->orig_family_num = 0; | |
6020 | sum = __gen_imsm_checksum(spare); | |
6021 | spare->check_sum = __cpu_to_le32(sum); | |
027c374f | 6022 | |
12724c01 TM |
6023 | if (store_imsm_mpb(d->fd, spare)) { |
6024 | pr_err("failed for device %d:%d %s\n", | |
6025 | d->major, d->minor, strerror(errno)); | |
6026 | return 1; | |
6027 | } | |
6028 | ||
6029 | return 0; | |
6030 | } | |
6031 | /* spare records have their own family number and do not have any defined raid | |
6032 | * devices | |
6033 | */ | |
6034 | static int write_super_imsm_spares(struct intel_super *super, int doclose) | |
6035 | { | |
6036 | struct dl *d; | |
f36a9ecd | 6037 | |
12724c01 TM |
6038 | for (d = super->disks; d; d = d->next) { |
6039 | if (d->index != -1) | |
6040 | continue; | |
d23fe947 | 6041 | |
12724c01 | 6042 | if (write_super_imsm_spare(super, d)) |
e74255d9 | 6043 | return 1; |
12724c01 | 6044 | |
d23fe947 DW |
6045 | if (doclose) { |
6046 | close(d->fd); | |
6047 | d->fd = -1; | |
6048 | } | |
6049 | } | |
6050 | ||
e74255d9 | 6051 | return 0; |
d23fe947 DW |
6052 | } |
6053 | ||
36988a3d | 6054 | static int write_super_imsm(struct supertype *st, int doclose) |
cdddbdbc | 6055 | { |
36988a3d | 6056 | struct intel_super *super = st->sb; |
f36a9ecd | 6057 | unsigned int sector_size = super->sector_size; |
949c47a0 | 6058 | struct imsm_super *mpb = super->anchor; |
c2c087e6 DW |
6059 | struct dl *d; |
6060 | __u32 generation; | |
6061 | __u32 sum; | |
d23fe947 | 6062 | int spares = 0; |
949c47a0 | 6063 | int i; |
a48ac0a8 | 6064 | __u32 mpb_size = sizeof(struct imsm_super) - sizeof(struct imsm_disk); |
36988a3d | 6065 | int num_disks = 0; |
146c6260 | 6066 | int clear_migration_record = 1; |
bbab0940 | 6067 | __u32 bbm_log_size; |
cdddbdbc | 6068 | |
c2c087e6 DW |
6069 | /* 'generation' is incremented everytime the metadata is written */ |
6070 | generation = __le32_to_cpu(mpb->generation_num); | |
6071 | generation++; | |
6072 | mpb->generation_num = __cpu_to_le32(generation); | |
6073 | ||
148acb7b DW |
6074 | /* fix up cases where previous mdadm releases failed to set |
6075 | * orig_family_num | |
6076 | */ | |
6077 | if (mpb->orig_family_num == 0) | |
6078 | mpb->orig_family_num = mpb->family_num; | |
6079 | ||
d23fe947 | 6080 | for (d = super->disks; d; d = d->next) { |
8796fdc4 | 6081 | if (d->index == -1) |
d23fe947 | 6082 | spares++; |
36988a3d | 6083 | else { |
d23fe947 | 6084 | mpb->disk[d->index] = d->disk; |
36988a3d AK |
6085 | num_disks++; |
6086 | } | |
d23fe947 | 6087 | } |
36988a3d | 6088 | for (d = super->missing; d; d = d->next) { |
47ee5a45 | 6089 | mpb->disk[d->index] = d->disk; |
36988a3d AK |
6090 | num_disks++; |
6091 | } | |
6092 | mpb->num_disks = num_disks; | |
6093 | mpb_size += sizeof(struct imsm_disk) * mpb->num_disks; | |
b9f594fe | 6094 | |
949c47a0 DW |
6095 | for (i = 0; i < mpb->num_raid_devs; i++) { |
6096 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
36988a3d AK |
6097 | struct imsm_dev *dev2 = get_imsm_dev(super, i); |
6098 | if (dev && dev2) { | |
6099 | imsm_copy_dev(dev, dev2); | |
6100 | mpb_size += sizeof_imsm_dev(dev, 0); | |
6101 | } | |
146c6260 AK |
6102 | if (is_gen_migration(dev2)) |
6103 | clear_migration_record = 0; | |
949c47a0 | 6104 | } |
bbab0940 TM |
6105 | |
6106 | bbm_log_size = get_imsm_bbm_log_size(super->bbm_log); | |
6107 | ||
6108 | if (bbm_log_size) { | |
6109 | memcpy((void *)mpb + mpb_size, super->bbm_log, bbm_log_size); | |
6110 | mpb->attributes |= MPB_ATTRIB_BBM; | |
6111 | } else | |
6112 | mpb->attributes &= ~MPB_ATTRIB_BBM; | |
6113 | ||
6114 | super->anchor->bbm_log_size = __cpu_to_le32(bbm_log_size); | |
6115 | mpb_size += bbm_log_size; | |
a48ac0a8 | 6116 | mpb->mpb_size = __cpu_to_le32(mpb_size); |
949c47a0 | 6117 | |
bbab0940 TM |
6118 | #ifdef DEBUG |
6119 | assert(super->len == 0 || mpb_size <= super->len); | |
6120 | #endif | |
6121 | ||
c2c087e6 | 6122 | /* recalculate checksum */ |
949c47a0 | 6123 | sum = __gen_imsm_checksum(mpb); |
c2c087e6 DW |
6124 | mpb->check_sum = __cpu_to_le32(sum); |
6125 | ||
51d83f5d AK |
6126 | if (super->clean_migration_record_by_mdmon) { |
6127 | clear_migration_record = 1; | |
6128 | super->clean_migration_record_by_mdmon = 0; | |
6129 | } | |
146c6260 | 6130 | if (clear_migration_record) |
de44e46f | 6131 | memset(super->migr_rec_buf, 0, |
85337573 | 6132 | MIGR_REC_BUF_SECTORS*MAX_SECTOR_SIZE); |
146c6260 | 6133 | |
f36a9ecd PB |
6134 | if (sector_size == 4096) |
6135 | convert_to_4k(super); | |
6136 | ||
d23fe947 | 6137 | /* write the mpb for disks that compose raid devices */ |
c2c087e6 | 6138 | for (d = super->disks; d ; d = d->next) { |
86c54047 | 6139 | if (d->index < 0 || is_failed(&d->disk)) |
d23fe947 | 6140 | continue; |
30602f53 | 6141 | |
146c6260 AK |
6142 | if (clear_migration_record) { |
6143 | unsigned long long dsize; | |
6144 | ||
6145 | get_dev_size(d->fd, NULL, &dsize); | |
de44e46f PB |
6146 | if (lseek64(d->fd, dsize - sector_size, |
6147 | SEEK_SET) >= 0) { | |
466070ad PB |
6148 | if ((unsigned int)write(d->fd, |
6149 | super->migr_rec_buf, | |
de44e46f PB |
6150 | MIGR_REC_BUF_SECTORS*sector_size) != |
6151 | MIGR_REC_BUF_SECTORS*sector_size) | |
9e2d750d | 6152 | perror("Write migr_rec failed"); |
146c6260 AK |
6153 | } |
6154 | } | |
51d83f5d AK |
6155 | |
6156 | if (store_imsm_mpb(d->fd, mpb)) | |
6157 | fprintf(stderr, | |
1ade5cc1 N |
6158 | "failed for device %d:%d (fd: %d)%s\n", |
6159 | d->major, d->minor, | |
51d83f5d AK |
6160 | d->fd, strerror(errno)); |
6161 | ||
c2c087e6 DW |
6162 | if (doclose) { |
6163 | close(d->fd); | |
6164 | d->fd = -1; | |
6165 | } | |
6166 | } | |
6167 | ||
d23fe947 DW |
6168 | if (spares) |
6169 | return write_super_imsm_spares(super, doclose); | |
6170 | ||
e74255d9 | 6171 | return 0; |
c2c087e6 DW |
6172 | } |
6173 | ||
9b1fb677 | 6174 | static int create_array(struct supertype *st, int dev_idx) |
43dad3d6 DW |
6175 | { |
6176 | size_t len; | |
6177 | struct imsm_update_create_array *u; | |
6178 | struct intel_super *super = st->sb; | |
9b1fb677 | 6179 | struct imsm_dev *dev = get_imsm_dev(super, dev_idx); |
238c0a71 | 6180 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
54c2c1ea DW |
6181 | struct disk_info *inf; |
6182 | struct imsm_disk *disk; | |
6183 | int i; | |
43dad3d6 | 6184 | |
54c2c1ea DW |
6185 | len = sizeof(*u) - sizeof(*dev) + sizeof_imsm_dev(dev, 0) + |
6186 | sizeof(*inf) * map->num_members; | |
503975b9 | 6187 | u = xmalloc(len); |
43dad3d6 | 6188 | u->type = update_create_array; |
9b1fb677 | 6189 | u->dev_idx = dev_idx; |
43dad3d6 | 6190 | imsm_copy_dev(&u->dev, dev); |
54c2c1ea DW |
6191 | inf = get_disk_info(u); |
6192 | for (i = 0; i < map->num_members; i++) { | |
238c0a71 | 6193 | int idx = get_imsm_disk_idx(dev, i, MAP_X); |
9b1fb677 | 6194 | |
54c2c1ea | 6195 | disk = get_imsm_disk(super, idx); |
1ca5c8e0 N |
6196 | if (!disk) |
6197 | disk = get_imsm_missing(super, idx); | |
54c2c1ea DW |
6198 | serialcpy(inf[i].serial, disk->serial); |
6199 | } | |
43dad3d6 DW |
6200 | append_metadata_update(st, u, len); |
6201 | ||
6202 | return 0; | |
6203 | } | |
6204 | ||
1a64be56 | 6205 | static int mgmt_disk(struct supertype *st) |
43dad3d6 DW |
6206 | { |
6207 | struct intel_super *super = st->sb; | |
6208 | size_t len; | |
1a64be56 | 6209 | struct imsm_update_add_remove_disk *u; |
43dad3d6 | 6210 | |
1a64be56 | 6211 | if (!super->disk_mgmt_list) |
43dad3d6 DW |
6212 | return 0; |
6213 | ||
6214 | len = sizeof(*u); | |
503975b9 | 6215 | u = xmalloc(len); |
1a64be56 | 6216 | u->type = update_add_remove_disk; |
43dad3d6 DW |
6217 | append_metadata_update(st, u, len); |
6218 | ||
6219 | return 0; | |
6220 | } | |
2432ce9b AP |
6221 | |
6222 | __u32 crc32c_le(__u32 crc, unsigned char const *p, size_t len); | |
6223 | ||
e397cefe AP |
6224 | static int write_ppl_header(unsigned long long ppl_sector, int fd, void *buf) |
6225 | { | |
6226 | struct ppl_header *ppl_hdr = buf; | |
6227 | int ret; | |
6228 | ||
6229 | ppl_hdr->checksum = __cpu_to_le32(~crc32c_le(~0, buf, PPL_HEADER_SIZE)); | |
6230 | ||
6231 | if (lseek64(fd, ppl_sector * 512, SEEK_SET) < 0) { | |
6232 | ret = -errno; | |
6233 | perror("Failed to seek to PPL header location"); | |
6234 | return ret; | |
6235 | } | |
6236 | ||
6237 | if (write(fd, buf, PPL_HEADER_SIZE) != PPL_HEADER_SIZE) { | |
6238 | ret = -errno; | |
6239 | perror("Write PPL header failed"); | |
6240 | return ret; | |
6241 | } | |
6242 | ||
6243 | fsync(fd); | |
6244 | ||
6245 | return 0; | |
6246 | } | |
6247 | ||
2432ce9b AP |
6248 | static int write_init_ppl_imsm(struct supertype *st, struct mdinfo *info, int fd) |
6249 | { | |
6250 | struct intel_super *super = st->sb; | |
6251 | void *buf; | |
6252 | struct ppl_header *ppl_hdr; | |
6253 | int ret; | |
6254 | ||
b2514242 PB |
6255 | /* first clear entire ppl space */ |
6256 | ret = zero_disk_range(fd, info->ppl_sector, info->ppl_size); | |
6257 | if (ret) | |
6258 | return ret; | |
6259 | ||
6260 | ret = posix_memalign(&buf, MAX_SECTOR_SIZE, PPL_HEADER_SIZE); | |
2432ce9b AP |
6261 | if (ret) { |
6262 | pr_err("Failed to allocate PPL header buffer\n"); | |
e397cefe | 6263 | return -ret; |
2432ce9b AP |
6264 | } |
6265 | ||
6266 | memset(buf, 0, PPL_HEADER_SIZE); | |
6267 | ppl_hdr = buf; | |
6268 | memset(ppl_hdr->reserved, 0xff, PPL_HDR_RESERVED); | |
6269 | ppl_hdr->signature = __cpu_to_le32(super->anchor->orig_family_num); | |
b23d0750 AP |
6270 | |
6271 | if (info->mismatch_cnt) { | |
6272 | /* | |
6273 | * We are overwriting an invalid ppl. Make one entry with wrong | |
6274 | * checksum to prevent the kernel from skipping resync. | |
6275 | */ | |
6276 | ppl_hdr->entries_count = __cpu_to_le32(1); | |
6277 | ppl_hdr->entries[0].checksum = ~0; | |
6278 | } | |
6279 | ||
e397cefe | 6280 | ret = write_ppl_header(info->ppl_sector, fd, buf); |
2432ce9b AP |
6281 | |
6282 | free(buf); | |
6283 | return ret; | |
6284 | } | |
6285 | ||
e397cefe AP |
6286 | static int is_rebuilding(struct imsm_dev *dev); |
6287 | ||
2432ce9b AP |
6288 | static int validate_ppl_imsm(struct supertype *st, struct mdinfo *info, |
6289 | struct mdinfo *disk) | |
6290 | { | |
6291 | struct intel_super *super = st->sb; | |
6292 | struct dl *d; | |
e397cefe | 6293 | void *buf_orig, *buf, *buf_prev = NULL; |
2432ce9b | 6294 | int ret = 0; |
e397cefe | 6295 | struct ppl_header *ppl_hdr = NULL; |
2432ce9b AP |
6296 | __u32 crc; |
6297 | struct imsm_dev *dev; | |
2432ce9b | 6298 | __u32 idx; |
44b6b876 PB |
6299 | unsigned int i; |
6300 | unsigned long long ppl_offset = 0; | |
6301 | unsigned long long prev_gen_num = 0; | |
2432ce9b AP |
6302 | |
6303 | if (disk->disk.raid_disk < 0) | |
6304 | return 0; | |
6305 | ||
2432ce9b | 6306 | dev = get_imsm_dev(super, info->container_member); |
2fc0fc63 | 6307 | idx = get_imsm_disk_idx(dev, disk->disk.raid_disk, MAP_0); |
2432ce9b AP |
6308 | d = get_imsm_dl_disk(super, idx); |
6309 | ||
6310 | if (!d || d->index < 0 || is_failed(&d->disk)) | |
e397cefe AP |
6311 | return 0; |
6312 | ||
6313 | if (posix_memalign(&buf_orig, MAX_SECTOR_SIZE, PPL_HEADER_SIZE * 2)) { | |
6314 | pr_err("Failed to allocate PPL header buffer\n"); | |
6315 | return -1; | |
6316 | } | |
6317 | buf = buf_orig; | |
2432ce9b | 6318 | |
44b6b876 PB |
6319 | ret = 1; |
6320 | while (ppl_offset < MULTIPLE_PPL_AREA_SIZE_IMSM) { | |
e397cefe AP |
6321 | void *tmp; |
6322 | ||
44b6b876 | 6323 | dprintf("Checking potential PPL at offset: %llu\n", ppl_offset); |
2432ce9b | 6324 | |
44b6b876 PB |
6325 | if (lseek64(d->fd, info->ppl_sector * 512 + ppl_offset, |
6326 | SEEK_SET) < 0) { | |
6327 | perror("Failed to seek to PPL header location"); | |
6328 | ret = -1; | |
e397cefe | 6329 | break; |
44b6b876 | 6330 | } |
2432ce9b | 6331 | |
44b6b876 PB |
6332 | if (read(d->fd, buf, PPL_HEADER_SIZE) != PPL_HEADER_SIZE) { |
6333 | perror("Read PPL header failed"); | |
6334 | ret = -1; | |
e397cefe | 6335 | break; |
44b6b876 | 6336 | } |
2432ce9b | 6337 | |
44b6b876 | 6338 | ppl_hdr = buf; |
2432ce9b | 6339 | |
44b6b876 PB |
6340 | crc = __le32_to_cpu(ppl_hdr->checksum); |
6341 | ppl_hdr->checksum = 0; | |
6342 | ||
6343 | if (crc != ~crc32c_le(~0, buf, PPL_HEADER_SIZE)) { | |
6344 | dprintf("Wrong PPL header checksum on %s\n", | |
6345 | d->devname); | |
e397cefe | 6346 | break; |
44b6b876 PB |
6347 | } |
6348 | ||
6349 | if (prev_gen_num > __le64_to_cpu(ppl_hdr->generation)) { | |
6350 | /* previous was newest, it was already checked */ | |
e397cefe | 6351 | break; |
44b6b876 PB |
6352 | } |
6353 | ||
6354 | if ((__le32_to_cpu(ppl_hdr->signature) != | |
6355 | super->anchor->orig_family_num)) { | |
6356 | dprintf("Wrong PPL header signature on %s\n", | |
6357 | d->devname); | |
6358 | ret = 1; | |
e397cefe | 6359 | break; |
44b6b876 PB |
6360 | } |
6361 | ||
6362 | ret = 0; | |
6363 | prev_gen_num = __le64_to_cpu(ppl_hdr->generation); | |
2432ce9b | 6364 | |
44b6b876 PB |
6365 | ppl_offset += PPL_HEADER_SIZE; |
6366 | for (i = 0; i < __le32_to_cpu(ppl_hdr->entries_count); i++) | |
6367 | ppl_offset += | |
6368 | __le32_to_cpu(ppl_hdr->entries[i].pp_size); | |
e397cefe AP |
6369 | |
6370 | if (!buf_prev) | |
6371 | buf_prev = buf + PPL_HEADER_SIZE; | |
6372 | tmp = buf_prev; | |
6373 | buf_prev = buf; | |
6374 | buf = tmp; | |
2432ce9b AP |
6375 | } |
6376 | ||
e397cefe AP |
6377 | if (buf_prev) { |
6378 | buf = buf_prev; | |
6379 | ppl_hdr = buf_prev; | |
6380 | } | |
2432ce9b | 6381 | |
54148aba PB |
6382 | /* |
6383 | * Update metadata to use mutliple PPLs area (1MB). | |
6384 | * This is done once for all RAID members | |
6385 | */ | |
6386 | if (info->consistency_policy == CONSISTENCY_POLICY_PPL && | |
6387 | info->ppl_size != (MULTIPLE_PPL_AREA_SIZE_IMSM >> 9)) { | |
6388 | char subarray[20]; | |
6389 | struct mdinfo *member_dev; | |
6390 | ||
6391 | sprintf(subarray, "%d", info->container_member); | |
6392 | ||
6393 | if (mdmon_running(st->container_devnm)) | |
6394 | st->update_tail = &st->updates; | |
6395 | ||
6396 | if (st->ss->update_subarray(st, subarray, "ppl", NULL)) { | |
6397 | pr_err("Failed to update subarray %s\n", | |
6398 | subarray); | |
6399 | } else { | |
6400 | if (st->update_tail) | |
6401 | flush_metadata_updates(st); | |
6402 | else | |
6403 | st->ss->sync_metadata(st); | |
6404 | info->ppl_size = (MULTIPLE_PPL_AREA_SIZE_IMSM >> 9); | |
6405 | for (member_dev = info->devs; member_dev; | |
6406 | member_dev = member_dev->next) | |
6407 | member_dev->ppl_size = | |
6408 | (MULTIPLE_PPL_AREA_SIZE_IMSM >> 9); | |
6409 | } | |
6410 | } | |
6411 | ||
b23d0750 | 6412 | if (ret == 1) { |
2fc0fc63 AP |
6413 | struct imsm_map *map = get_imsm_map(dev, MAP_X); |
6414 | ||
50b9c10d PB |
6415 | if (map->map_state == IMSM_T_STATE_UNINITIALIZED || |
6416 | (map->map_state == IMSM_T_STATE_NORMAL && | |
2ec9d182 | 6417 | !(dev->vol.dirty & RAIDVOL_DIRTY)) || |
e397cefe | 6418 | (is_rebuilding(dev) && |
2ec9d182 AP |
6419 | dev->vol.curr_migr_unit == 0 && |
6420 | get_imsm_disk_idx(dev, disk->disk.raid_disk, MAP_1) != idx)) | |
b23d0750 AP |
6421 | ret = st->ss->write_init_ppl(st, info, d->fd); |
6422 | else | |
6423 | info->mismatch_cnt++; | |
e397cefe AP |
6424 | } else if (ret == 0 && |
6425 | ppl_hdr->entries_count == 0 && | |
6426 | is_rebuilding(dev) && | |
6427 | info->resync_start == 0) { | |
6428 | /* | |
6429 | * The header has no entries - add a single empty entry and | |
6430 | * rewrite the header to prevent the kernel from going into | |
6431 | * resync after an interrupted rebuild. | |
6432 | */ | |
6433 | ppl_hdr->entries_count = __cpu_to_le32(1); | |
6434 | ret = write_ppl_header(info->ppl_sector, d->fd, buf); | |
b23d0750 | 6435 | } |
2432ce9b | 6436 | |
e397cefe AP |
6437 | free(buf_orig); |
6438 | ||
2432ce9b AP |
6439 | return ret; |
6440 | } | |
6441 | ||
2432ce9b AP |
6442 | static int write_init_ppl_imsm_all(struct supertype *st, struct mdinfo *info) |
6443 | { | |
6444 | struct intel_super *super = st->sb; | |
6445 | struct dl *d; | |
6446 | int ret = 0; | |
6447 | ||
6448 | if (info->consistency_policy != CONSISTENCY_POLICY_PPL || | |
6449 | info->array.level != 5) | |
6450 | return 0; | |
6451 | ||
6452 | for (d = super->disks; d ; d = d->next) { | |
6453 | if (d->index < 0 || is_failed(&d->disk)) | |
6454 | continue; | |
6455 | ||
6456 | ret = st->ss->write_init_ppl(st, info, d->fd); | |
6457 | if (ret) | |
6458 | break; | |
6459 | } | |
6460 | ||
6461 | return ret; | |
6462 | } | |
43dad3d6 | 6463 | |
c2c087e6 DW |
6464 | static int write_init_super_imsm(struct supertype *st) |
6465 | { | |
9b1fb677 DW |
6466 | struct intel_super *super = st->sb; |
6467 | int current_vol = super->current_vol; | |
2432ce9b AP |
6468 | int rv = 0; |
6469 | struct mdinfo info; | |
6470 | ||
6471 | getinfo_super_imsm(st, &info, NULL); | |
9b1fb677 DW |
6472 | |
6473 | /* we are done with current_vol reset it to point st at the container */ | |
6474 | super->current_vol = -1; | |
6475 | ||
8273f55e | 6476 | if (st->update_tail) { |
43dad3d6 DW |
6477 | /* queue the recently created array / added disk |
6478 | * as a metadata update */ | |
8273f55e | 6479 | |
43dad3d6 | 6480 | /* determine if we are creating a volume or adding a disk */ |
9b1fb677 | 6481 | if (current_vol < 0) { |
1a64be56 LM |
6482 | /* in the mgmt (add/remove) disk case we are running |
6483 | * in mdmon context, so don't close fd's | |
43dad3d6 | 6484 | */ |
2432ce9b AP |
6485 | rv = mgmt_disk(st); |
6486 | } else { | |
6487 | rv = write_init_ppl_imsm_all(st, &info); | |
6488 | if (!rv) | |
6489 | rv = create_array(st, current_vol); | |
6490 | } | |
d682f344 N |
6491 | } else { |
6492 | struct dl *d; | |
6493 | for (d = super->disks; d; d = d->next) | |
ba728be7 | 6494 | Kill(d->devname, NULL, 0, -1, 1); |
2432ce9b AP |
6495 | if (current_vol >= 0) |
6496 | rv = write_init_ppl_imsm_all(st, &info); | |
6497 | if (!rv) | |
6498 | rv = write_super_imsm(st, 1); | |
d682f344 | 6499 | } |
2432ce9b AP |
6500 | |
6501 | return rv; | |
cdddbdbc DW |
6502 | } |
6503 | ||
e683ca88 | 6504 | static int store_super_imsm(struct supertype *st, int fd) |
cdddbdbc | 6505 | { |
e683ca88 DW |
6506 | struct intel_super *super = st->sb; |
6507 | struct imsm_super *mpb = super ? super->anchor : NULL; | |
551c80c1 | 6508 | |
e683ca88 | 6509 | if (!mpb) |
ad97895e DW |
6510 | return 1; |
6511 | ||
f36a9ecd PB |
6512 | if (super->sector_size == 4096) |
6513 | convert_to_4k(super); | |
e683ca88 | 6514 | return store_imsm_mpb(fd, mpb); |
cdddbdbc DW |
6515 | } |
6516 | ||
cdddbdbc DW |
6517 | static int validate_geometry_imsm_container(struct supertype *st, int level, |
6518 | int layout, int raiddisks, int chunk, | |
af4348dd N |
6519 | unsigned long long size, |
6520 | unsigned long long data_offset, | |
6521 | char *dev, | |
2c514b71 NB |
6522 | unsigned long long *freesize, |
6523 | int verbose) | |
cdddbdbc | 6524 | { |
c2c087e6 DW |
6525 | int fd; |
6526 | unsigned long long ldsize; | |
594dc1b8 | 6527 | struct intel_super *super; |
f2f5c343 | 6528 | int rv = 0; |
cdddbdbc | 6529 | |
c2c087e6 DW |
6530 | if (level != LEVEL_CONTAINER) |
6531 | return 0; | |
6532 | if (!dev) | |
6533 | return 1; | |
6534 | ||
6535 | fd = open(dev, O_RDONLY|O_EXCL, 0); | |
6536 | if (fd < 0) { | |
ba728be7 | 6537 | if (verbose > 0) |
e7b84f9d | 6538 | pr_err("imsm: Cannot open %s: %s\n", |
2c514b71 | 6539 | dev, strerror(errno)); |
c2c087e6 DW |
6540 | return 0; |
6541 | } | |
6542 | if (!get_dev_size(fd, dev, &ldsize)) { | |
6543 | close(fd); | |
6544 | return 0; | |
6545 | } | |
f2f5c343 LM |
6546 | |
6547 | /* capabilities retrieve could be possible | |
6548 | * note that there is no fd for the disks in array. | |
6549 | */ | |
6550 | super = alloc_super(); | |
8d67477f TM |
6551 | if (!super) { |
6552 | close(fd); | |
6553 | return 0; | |
6554 | } | |
fa7bb6f8 PB |
6555 | if (!get_dev_sector_size(fd, NULL, &super->sector_size)) { |
6556 | close(fd); | |
6557 | free_imsm(super); | |
6558 | return 0; | |
6559 | } | |
6560 | ||
ba728be7 | 6561 | rv = find_intel_hba_capability(fd, super, verbose > 0 ? dev : NULL); |
f2f5c343 LM |
6562 | if (rv != 0) { |
6563 | #if DEBUG | |
6564 | char str[256]; | |
6565 | fd2devname(fd, str); | |
1ade5cc1 | 6566 | dprintf("fd: %d %s orom: %p rv: %d raiddisk: %d\n", |
f2f5c343 LM |
6567 | fd, str, super->orom, rv, raiddisks); |
6568 | #endif | |
6569 | /* no orom/efi or non-intel hba of the disk */ | |
6570 | close(fd); | |
6571 | free_imsm(super); | |
6572 | return 0; | |
6573 | } | |
c2c087e6 | 6574 | close(fd); |
9126b9a8 CA |
6575 | if (super->orom) { |
6576 | if (raiddisks > super->orom->tds) { | |
6577 | if (verbose) | |
7a862a02 | 6578 | pr_err("%d exceeds maximum number of platform supported disks: %d\n", |
9126b9a8 CA |
6579 | raiddisks, super->orom->tds); |
6580 | free_imsm(super); | |
6581 | return 0; | |
6582 | } | |
6583 | if ((super->orom->attr & IMSM_OROM_ATTR_2TB_DISK) == 0 && | |
6584 | (ldsize >> 9) >> 32 > 0) { | |
6585 | if (verbose) | |
e7b84f9d | 6586 | pr_err("%s exceeds maximum platform supported size\n", dev); |
9126b9a8 CA |
6587 | free_imsm(super); |
6588 | return 0; | |
6589 | } | |
f2f5c343 | 6590 | } |
c2c087e6 | 6591 | |
af4348dd | 6592 | *freesize = avail_size_imsm(st, ldsize >> 9, data_offset); |
f2f5c343 | 6593 | free_imsm(super); |
c2c087e6 DW |
6594 | |
6595 | return 1; | |
cdddbdbc DW |
6596 | } |
6597 | ||
0dcecb2e DW |
6598 | static unsigned long long find_size(struct extent *e, int *idx, int num_extents) |
6599 | { | |
6600 | const unsigned long long base_start = e[*idx].start; | |
6601 | unsigned long long end = base_start + e[*idx].size; | |
6602 | int i; | |
6603 | ||
6604 | if (base_start == end) | |
6605 | return 0; | |
6606 | ||
6607 | *idx = *idx + 1; | |
6608 | for (i = *idx; i < num_extents; i++) { | |
6609 | /* extend overlapping extents */ | |
6610 | if (e[i].start >= base_start && | |
6611 | e[i].start <= end) { | |
6612 | if (e[i].size == 0) | |
6613 | return 0; | |
6614 | if (e[i].start + e[i].size > end) | |
6615 | end = e[i].start + e[i].size; | |
6616 | } else if (e[i].start > end) { | |
6617 | *idx = i; | |
6618 | break; | |
6619 | } | |
6620 | } | |
6621 | ||
6622 | return end - base_start; | |
6623 | } | |
6624 | ||
6625 | static unsigned long long merge_extents(struct intel_super *super, int sum_extents) | |
6626 | { | |
6627 | /* build a composite disk with all known extents and generate a new | |
6628 | * 'maxsize' given the "all disks in an array must share a common start | |
6629 | * offset" constraint | |
6630 | */ | |
503975b9 | 6631 | struct extent *e = xcalloc(sum_extents, sizeof(*e)); |
0dcecb2e DW |
6632 | struct dl *dl; |
6633 | int i, j; | |
6634 | int start_extent; | |
6635 | unsigned long long pos; | |
b9d77223 | 6636 | unsigned long long start = 0; |
0dcecb2e DW |
6637 | unsigned long long maxsize; |
6638 | unsigned long reserve; | |
6639 | ||
0dcecb2e DW |
6640 | /* coalesce and sort all extents. also, check to see if we need to |
6641 | * reserve space between member arrays | |
6642 | */ | |
6643 | j = 0; | |
6644 | for (dl = super->disks; dl; dl = dl->next) { | |
6645 | if (!dl->e) | |
6646 | continue; | |
6647 | for (i = 0; i < dl->extent_cnt; i++) | |
6648 | e[j++] = dl->e[i]; | |
6649 | } | |
6650 | qsort(e, sum_extents, sizeof(*e), cmp_extent); | |
6651 | ||
6652 | /* merge extents */ | |
6653 | i = 0; | |
6654 | j = 0; | |
6655 | while (i < sum_extents) { | |
6656 | e[j].start = e[i].start; | |
6657 | e[j].size = find_size(e, &i, sum_extents); | |
6658 | j++; | |
6659 | if (e[j-1].size == 0) | |
6660 | break; | |
6661 | } | |
6662 | ||
6663 | pos = 0; | |
6664 | maxsize = 0; | |
6665 | start_extent = 0; | |
6666 | i = 0; | |
6667 | do { | |
6668 | unsigned long long esize; | |
6669 | ||
6670 | esize = e[i].start - pos; | |
6671 | if (esize >= maxsize) { | |
6672 | maxsize = esize; | |
6673 | start = pos; | |
6674 | start_extent = i; | |
6675 | } | |
6676 | pos = e[i].start + e[i].size; | |
6677 | i++; | |
6678 | } while (e[i-1].size); | |
6679 | free(e); | |
6680 | ||
a7dd165b DW |
6681 | if (maxsize == 0) |
6682 | return 0; | |
6683 | ||
6684 | /* FIXME assumes volume at offset 0 is the first volume in a | |
6685 | * container | |
6686 | */ | |
0dcecb2e DW |
6687 | if (start_extent > 0) |
6688 | reserve = IMSM_RESERVED_SECTORS; /* gap between raid regions */ | |
6689 | else | |
6690 | reserve = 0; | |
6691 | ||
6692 | if (maxsize < reserve) | |
a7dd165b | 6693 | return 0; |
0dcecb2e | 6694 | |
5551b113 | 6695 | super->create_offset = ~((unsigned long long) 0); |
0dcecb2e | 6696 | if (start + reserve > super->create_offset) |
a7dd165b | 6697 | return 0; /* start overflows create_offset */ |
0dcecb2e DW |
6698 | super->create_offset = start + reserve; |
6699 | ||
6700 | return maxsize - reserve; | |
6701 | } | |
6702 | ||
88c32bb1 DW |
6703 | static int is_raid_level_supported(const struct imsm_orom *orom, int level, int raiddisks) |
6704 | { | |
6705 | if (level < 0 || level == 6 || level == 4) | |
6706 | return 0; | |
6707 | ||
6708 | /* if we have an orom prevent invalid raid levels */ | |
6709 | if (orom) | |
6710 | switch (level) { | |
6711 | case 0: return imsm_orom_has_raid0(orom); | |
6712 | case 1: | |
6713 | if (raiddisks > 2) | |
6714 | return imsm_orom_has_raid1e(orom); | |
1c556e92 DW |
6715 | return imsm_orom_has_raid1(orom) && raiddisks == 2; |
6716 | case 10: return imsm_orom_has_raid10(orom) && raiddisks == 4; | |
6717 | case 5: return imsm_orom_has_raid5(orom) && raiddisks > 2; | |
88c32bb1 DW |
6718 | } |
6719 | else | |
6720 | return 1; /* not on an Intel RAID platform so anything goes */ | |
6721 | ||
6722 | return 0; | |
6723 | } | |
6724 | ||
ca9de185 LM |
6725 | static int |
6726 | active_arrays_by_format(char *name, char* hba, struct md_list **devlist, | |
6727 | int dpa, int verbose) | |
6728 | { | |
6729 | struct mdstat_ent *mdstat = mdstat_read(0, 0); | |
594dc1b8 | 6730 | struct mdstat_ent *memb; |
ca9de185 LM |
6731 | int count = 0; |
6732 | int num = 0; | |
594dc1b8 | 6733 | struct md_list *dv; |
ca9de185 LM |
6734 | int found; |
6735 | ||
6736 | for (memb = mdstat ; memb ; memb = memb->next) { | |
6737 | if (memb->metadata_version && | |
fc54fe7a | 6738 | (strncmp(memb->metadata_version, "external:", 9) == 0) && |
ca9de185 LM |
6739 | (strcmp(&memb->metadata_version[9], name) == 0) && |
6740 | !is_subarray(memb->metadata_version+9) && | |
6741 | memb->members) { | |
6742 | struct dev_member *dev = memb->members; | |
6743 | int fd = -1; | |
6744 | while(dev && (fd < 0)) { | |
503975b9 N |
6745 | char *path = xmalloc(strlen(dev->name) + strlen("/dev/") + 1); |
6746 | num = sprintf(path, "%s%s", "/dev/", dev->name); | |
6747 | if (num > 0) | |
6748 | fd = open(path, O_RDONLY, 0); | |
089f9d79 | 6749 | if (num <= 0 || fd < 0) { |
676e87a8 | 6750 | pr_vrb("Cannot open %s: %s\n", |
503975b9 | 6751 | dev->name, strerror(errno)); |
ca9de185 | 6752 | } |
503975b9 | 6753 | free(path); |
ca9de185 LM |
6754 | dev = dev->next; |
6755 | } | |
6756 | found = 0; | |
089f9d79 | 6757 | if (fd >= 0 && disk_attached_to_hba(fd, hba)) { |
ca9de185 LM |
6758 | struct mdstat_ent *vol; |
6759 | for (vol = mdstat ; vol ; vol = vol->next) { | |
089f9d79 | 6760 | if (vol->active > 0 && |
ca9de185 | 6761 | vol->metadata_version && |
9581efb1 | 6762 | is_container_member(vol, memb->devnm)) { |
ca9de185 LM |
6763 | found++; |
6764 | count++; | |
6765 | } | |
6766 | } | |
6767 | if (*devlist && (found < dpa)) { | |
503975b9 | 6768 | dv = xcalloc(1, sizeof(*dv)); |
9581efb1 N |
6769 | dv->devname = xmalloc(strlen(memb->devnm) + strlen("/dev/") + 1); |
6770 | sprintf(dv->devname, "%s%s", "/dev/", memb->devnm); | |
503975b9 N |
6771 | dv->found = found; |
6772 | dv->used = 0; | |
6773 | dv->next = *devlist; | |
6774 | *devlist = dv; | |
ca9de185 LM |
6775 | } |
6776 | } | |
6777 | if (fd >= 0) | |
6778 | close(fd); | |
6779 | } | |
6780 | } | |
6781 | free_mdstat(mdstat); | |
6782 | return count; | |
6783 | } | |
6784 | ||
6785 | #ifdef DEBUG_LOOP | |
6786 | static struct md_list* | |
6787 | get_loop_devices(void) | |
6788 | { | |
6789 | int i; | |
6790 | struct md_list *devlist = NULL; | |
594dc1b8 | 6791 | struct md_list *dv; |
ca9de185 LM |
6792 | |
6793 | for(i = 0; i < 12; i++) { | |
503975b9 N |
6794 | dv = xcalloc(1, sizeof(*dv)); |
6795 | dv->devname = xmalloc(40); | |
ca9de185 LM |
6796 | sprintf(dv->devname, "/dev/loop%d", i); |
6797 | dv->next = devlist; | |
6798 | devlist = dv; | |
6799 | } | |
6800 | return devlist; | |
6801 | } | |
6802 | #endif | |
6803 | ||
6804 | static struct md_list* | |
6805 | get_devices(const char *hba_path) | |
6806 | { | |
6807 | struct md_list *devlist = NULL; | |
594dc1b8 | 6808 | struct md_list *dv; |
ca9de185 LM |
6809 | struct dirent *ent; |
6810 | DIR *dir; | |
6811 | int err = 0; | |
6812 | ||
6813 | #if DEBUG_LOOP | |
6814 | devlist = get_loop_devices(); | |
6815 | return devlist; | |
6816 | #endif | |
6817 | /* scroll through /sys/dev/block looking for devices attached to | |
6818 | * this hba | |
6819 | */ | |
6820 | dir = opendir("/sys/dev/block"); | |
6821 | for (ent = dir ? readdir(dir) : NULL; ent; ent = readdir(dir)) { | |
6822 | int fd; | |
6823 | char buf[1024]; | |
6824 | int major, minor; | |
6825 | char *path = NULL; | |
6826 | if (sscanf(ent->d_name, "%d:%d", &major, &minor) != 2) | |
6827 | continue; | |
6828 | path = devt_to_devpath(makedev(major, minor)); | |
6829 | if (!path) | |
6830 | continue; | |
6831 | if (!path_attached_to_hba(path, hba_path)) { | |
6832 | free(path); | |
6833 | path = NULL; | |
6834 | continue; | |
6835 | } | |
6836 | free(path); | |
6837 | path = NULL; | |
6838 | fd = dev_open(ent->d_name, O_RDONLY); | |
6839 | if (fd >= 0) { | |
6840 | fd2devname(fd, buf); | |
6841 | close(fd); | |
6842 | } else { | |
e7b84f9d | 6843 | pr_err("cannot open device: %s\n", |
ca9de185 LM |
6844 | ent->d_name); |
6845 | continue; | |
6846 | } | |
6847 | ||
503975b9 N |
6848 | dv = xcalloc(1, sizeof(*dv)); |
6849 | dv->devname = xstrdup(buf); | |
ca9de185 LM |
6850 | dv->next = devlist; |
6851 | devlist = dv; | |
6852 | } | |
6853 | if (err) { | |
6854 | while(devlist) { | |
6855 | dv = devlist; | |
6856 | devlist = devlist->next; | |
6857 | free(dv->devname); | |
6858 | free(dv); | |
6859 | } | |
6860 | } | |
562aa102 | 6861 | closedir(dir); |
ca9de185 LM |
6862 | return devlist; |
6863 | } | |
6864 | ||
6865 | static int | |
6866 | count_volumes_list(struct md_list *devlist, char *homehost, | |
6867 | int verbose, int *found) | |
6868 | { | |
6869 | struct md_list *tmpdev; | |
6870 | int count = 0; | |
594dc1b8 | 6871 | struct supertype *st; |
ca9de185 LM |
6872 | |
6873 | /* first walk the list of devices to find a consistent set | |
6874 | * that match the criterea, if that is possible. | |
6875 | * We flag the ones we like with 'used'. | |
6876 | */ | |
6877 | *found = 0; | |
6878 | st = match_metadata_desc_imsm("imsm"); | |
6879 | if (st == NULL) { | |
676e87a8 | 6880 | pr_vrb("cannot allocate memory for imsm supertype\n"); |
ca9de185 LM |
6881 | return 0; |
6882 | } | |
6883 | ||
6884 | for (tmpdev = devlist; tmpdev; tmpdev = tmpdev->next) { | |
6885 | char *devname = tmpdev->devname; | |
0a6bff09 | 6886 | dev_t rdev; |
ca9de185 LM |
6887 | struct supertype *tst; |
6888 | int dfd; | |
6889 | if (tmpdev->used > 1) | |
6890 | continue; | |
6891 | tst = dup_super(st); | |
6892 | if (tst == NULL) { | |
676e87a8 | 6893 | pr_vrb("cannot allocate memory for imsm supertype\n"); |
ca9de185 LM |
6894 | goto err_1; |
6895 | } | |
6896 | tmpdev->container = 0; | |
6897 | dfd = dev_open(devname, O_RDONLY|O_EXCL); | |
6898 | if (dfd < 0) { | |
1ade5cc1 | 6899 | dprintf("cannot open device %s: %s\n", |
ca9de185 LM |
6900 | devname, strerror(errno)); |
6901 | tmpdev->used = 2; | |
0a6bff09 | 6902 | } else if (!fstat_is_blkdev(dfd, devname, &rdev)) { |
ca9de185 LM |
6903 | tmpdev->used = 2; |
6904 | } else if (must_be_container(dfd)) { | |
6905 | struct supertype *cst; | |
6906 | cst = super_by_fd(dfd, NULL); | |
6907 | if (cst == NULL) { | |
1ade5cc1 | 6908 | dprintf("cannot recognize container type %s\n", |
ca9de185 LM |
6909 | devname); |
6910 | tmpdev->used = 2; | |
6911 | } else if (tst->ss != st->ss) { | |
1ade5cc1 | 6912 | dprintf("non-imsm container - ignore it: %s\n", |
ca9de185 LM |
6913 | devname); |
6914 | tmpdev->used = 2; | |
6915 | } else if (!tst->ss->load_container || | |
6916 | tst->ss->load_container(tst, dfd, NULL)) | |
6917 | tmpdev->used = 2; | |
6918 | else { | |
6919 | tmpdev->container = 1; | |
6920 | } | |
6921 | if (cst) | |
6922 | cst->ss->free_super(cst); | |
6923 | } else { | |
0a6bff09 | 6924 | tmpdev->st_rdev = rdev; |
ca9de185 | 6925 | if (tst->ss->load_super(tst,dfd, NULL)) { |
1ade5cc1 | 6926 | dprintf("no RAID superblock on %s\n", |
ca9de185 LM |
6927 | devname); |
6928 | tmpdev->used = 2; | |
6929 | } else if (tst->ss->compare_super == NULL) { | |
1ade5cc1 | 6930 | dprintf("Cannot assemble %s metadata on %s\n", |
ca9de185 LM |
6931 | tst->ss->name, devname); |
6932 | tmpdev->used = 2; | |
6933 | } | |
6934 | } | |
6935 | if (dfd >= 0) | |
6936 | close(dfd); | |
6937 | if (tmpdev->used == 2 || tmpdev->used == 4) { | |
6938 | /* Ignore unrecognised devices during auto-assembly */ | |
6939 | goto loop; | |
6940 | } | |
6941 | else { | |
6942 | struct mdinfo info; | |
6943 | tst->ss->getinfo_super(tst, &info, NULL); | |
6944 | ||
6945 | if (st->minor_version == -1) | |
6946 | st->minor_version = tst->minor_version; | |
6947 | ||
6948 | if (memcmp(info.uuid, uuid_zero, | |
6949 | sizeof(int[4])) == 0) { | |
6950 | /* this is a floating spare. It cannot define | |
6951 | * an array unless there are no more arrays of | |
6952 | * this type to be found. It can be included | |
6953 | * in an array of this type though. | |
6954 | */ | |
6955 | tmpdev->used = 3; | |
6956 | goto loop; | |
6957 | } | |
6958 | ||
6959 | if (st->ss != tst->ss || | |
6960 | st->minor_version != tst->minor_version || | |
6961 | st->ss->compare_super(st, tst) != 0) { | |
6962 | /* Some mismatch. If exactly one array matches this host, | |
6963 | * we can resolve on that one. | |
6964 | * Or, if we are auto assembling, we just ignore the second | |
6965 | * for now. | |
6966 | */ | |
1ade5cc1 | 6967 | dprintf("superblock on %s doesn't match others - assembly aborted\n", |
ca9de185 LM |
6968 | devname); |
6969 | goto loop; | |
6970 | } | |
6971 | tmpdev->used = 1; | |
6972 | *found = 1; | |
6973 | dprintf("found: devname: %s\n", devname); | |
6974 | } | |
6975 | loop: | |
6976 | if (tst) | |
6977 | tst->ss->free_super(tst); | |
6978 | } | |
6979 | if (*found != 0) { | |
6980 | int err; | |
6981 | if ((err = load_super_imsm_all(st, -1, &st->sb, NULL, devlist, 0)) == 0) { | |
6982 | struct mdinfo *iter, *head = st->ss->container_content(st, NULL); | |
6983 | for (iter = head; iter; iter = iter->next) { | |
6984 | dprintf("content->text_version: %s vol\n", | |
6985 | iter->text_version); | |
6986 | if (iter->array.state & (1<<MD_SB_BLOCK_VOLUME)) { | |
6987 | /* do not assemble arrays with unsupported | |
6988 | configurations */ | |
1ade5cc1 | 6989 | dprintf("Cannot activate member %s.\n", |
ca9de185 LM |
6990 | iter->text_version); |
6991 | } else | |
6992 | count++; | |
6993 | } | |
6994 | sysfs_free(head); | |
6995 | ||
6996 | } else { | |
1ade5cc1 | 6997 | dprintf("No valid super block on device list: err: %d %p\n", |
ca9de185 LM |
6998 | err, st->sb); |
6999 | } | |
7000 | } else { | |
1ade5cc1 | 7001 | dprintf("no more devices to examine\n"); |
ca9de185 LM |
7002 | } |
7003 | ||
7004 | for (tmpdev = devlist; tmpdev; tmpdev = tmpdev->next) { | |
089f9d79 | 7005 | if (tmpdev->used == 1 && tmpdev->found) { |
ca9de185 LM |
7006 | if (count) { |
7007 | if (count < tmpdev->found) | |
7008 | count = 0; | |
7009 | else | |
7010 | count -= tmpdev->found; | |
7011 | } | |
7012 | } | |
7013 | if (tmpdev->used == 1) | |
7014 | tmpdev->used = 4; | |
7015 | } | |
7016 | err_1: | |
7017 | if (st) | |
7018 | st->ss->free_super(st); | |
7019 | return count; | |
7020 | } | |
7021 | ||
d3c11416 AO |
7022 | static int __count_volumes(char *hba_path, int dpa, int verbose, |
7023 | int cmp_hba_path) | |
ca9de185 | 7024 | { |
72a45777 | 7025 | struct sys_dev *idev, *intel_devices = find_intel_devices(); |
ca9de185 | 7026 | int count = 0; |
72a45777 PB |
7027 | const struct orom_entry *entry; |
7028 | struct devid_list *dv, *devid_list; | |
ca9de185 | 7029 | |
d3c11416 | 7030 | if (!hba_path) |
ca9de185 LM |
7031 | return 0; |
7032 | ||
72a45777 | 7033 | for (idev = intel_devices; idev; idev = idev->next) { |
d3c11416 AO |
7034 | if (strstr(idev->path, hba_path)) |
7035 | break; | |
72a45777 PB |
7036 | } |
7037 | ||
7038 | if (!idev || !idev->dev_id) | |
ca9de185 | 7039 | return 0; |
72a45777 PB |
7040 | |
7041 | entry = get_orom_entry_by_device_id(idev->dev_id); | |
7042 | ||
7043 | if (!entry || !entry->devid_list) | |
7044 | return 0; | |
7045 | ||
7046 | devid_list = entry->devid_list; | |
7047 | for (dv = devid_list; dv; dv = dv->next) { | |
594dc1b8 | 7048 | struct md_list *devlist; |
d3c11416 AO |
7049 | struct sys_dev *device = NULL; |
7050 | char *hpath; | |
72a45777 PB |
7051 | int found = 0; |
7052 | ||
d3c11416 AO |
7053 | if (cmp_hba_path) |
7054 | device = device_by_id_and_path(dv->devid, hba_path); | |
7055 | else | |
7056 | device = device_by_id(dv->devid); | |
7057 | ||
72a45777 | 7058 | if (device) |
d3c11416 | 7059 | hpath = device->path; |
72a45777 PB |
7060 | else |
7061 | return 0; | |
7062 | ||
d3c11416 | 7063 | devlist = get_devices(hpath); |
72a45777 PB |
7064 | /* if no intel devices return zero volumes */ |
7065 | if (devlist == NULL) | |
7066 | return 0; | |
7067 | ||
d3c11416 AO |
7068 | count += active_arrays_by_format("imsm", hpath, &devlist, dpa, |
7069 | verbose); | |
7070 | dprintf("path: %s active arrays: %d\n", hpath, count); | |
72a45777 PB |
7071 | if (devlist == NULL) |
7072 | return 0; | |
7073 | do { | |
7074 | found = 0; | |
7075 | count += count_volumes_list(devlist, | |
7076 | NULL, | |
7077 | verbose, | |
7078 | &found); | |
7079 | dprintf("found %d count: %d\n", found, count); | |
7080 | } while (found); | |
7081 | ||
d3c11416 | 7082 | dprintf("path: %s total number of volumes: %d\n", hpath, count); |
72a45777 PB |
7083 | |
7084 | while (devlist) { | |
7085 | struct md_list *dv = devlist; | |
7086 | devlist = devlist->next; | |
7087 | free(dv->devname); | |
7088 | free(dv); | |
7089 | } | |
ca9de185 LM |
7090 | } |
7091 | return count; | |
7092 | } | |
7093 | ||
d3c11416 AO |
7094 | static int count_volumes(struct intel_hba *hba, int dpa, int verbose) |
7095 | { | |
7096 | if (!hba) | |
7097 | return 0; | |
7098 | if (hba->type == SYS_DEV_VMD) { | |
7099 | struct sys_dev *dev; | |
7100 | int count = 0; | |
7101 | ||
7102 | for (dev = find_intel_devices(); dev; dev = dev->next) { | |
7103 | if (dev->type == SYS_DEV_VMD) | |
7104 | count += __count_volumes(dev->path, dpa, | |
7105 | verbose, 1); | |
7106 | } | |
7107 | return count; | |
7108 | } | |
7109 | return __count_volumes(hba->path, dpa, verbose, 0); | |
7110 | } | |
7111 | ||
cd9d1ac7 DW |
7112 | static int imsm_default_chunk(const struct imsm_orom *orom) |
7113 | { | |
7114 | /* up to 512 if the plaform supports it, otherwise the platform max. | |
7115 | * 128 if no platform detected | |
7116 | */ | |
7117 | int fs = max(7, orom ? fls(orom->sss) : 0); | |
7118 | ||
7119 | return min(512, (1 << fs)); | |
7120 | } | |
73408129 | 7121 | |
6592ce37 DW |
7122 | static int |
7123 | validate_geometry_imsm_orom(struct intel_super *super, int level, int layout, | |
2cc699af | 7124 | int raiddisks, int *chunk, unsigned long long size, int verbose) |
6592ce37 | 7125 | { |
660260d0 DW |
7126 | /* check/set platform and metadata limits/defaults */ |
7127 | if (super->orom && raiddisks > super->orom->dpa) { | |
676e87a8 | 7128 | pr_vrb("platform supports a maximum of %d disks per array\n", |
660260d0 | 7129 | super->orom->dpa); |
73408129 LM |
7130 | return 0; |
7131 | } | |
7132 | ||
5d500228 | 7133 | /* capabilities of OROM tested - copied from validate_geometry_imsm_volume */ |
660260d0 | 7134 | if (!is_raid_level_supported(super->orom, level, raiddisks)) { |
676e87a8 | 7135 | pr_vrb("platform does not support raid%d with %d disk%s\n", |
6592ce37 DW |
7136 | level, raiddisks, raiddisks > 1 ? "s" : ""); |
7137 | return 0; | |
7138 | } | |
cd9d1ac7 | 7139 | |
7ccc4cc4 | 7140 | if (*chunk == 0 || *chunk == UnSet) |
cd9d1ac7 DW |
7141 | *chunk = imsm_default_chunk(super->orom); |
7142 | ||
7ccc4cc4 | 7143 | if (super->orom && !imsm_orom_has_chunk(super->orom, *chunk)) { |
676e87a8 | 7144 | pr_vrb("platform does not support a chunk size of: %d\n", *chunk); |
cd9d1ac7 | 7145 | return 0; |
6592ce37 | 7146 | } |
cd9d1ac7 | 7147 | |
6592ce37 DW |
7148 | if (layout != imsm_level_to_layout(level)) { |
7149 | if (level == 5) | |
676e87a8 | 7150 | pr_vrb("imsm raid 5 only supports the left-asymmetric layout\n"); |
6592ce37 | 7151 | else if (level == 10) |
676e87a8 | 7152 | pr_vrb("imsm raid 10 only supports the n2 layout\n"); |
6592ce37 | 7153 | else |
676e87a8 | 7154 | pr_vrb("imsm unknown layout %#x for this raid level %d\n", |
6592ce37 DW |
7155 | layout, level); |
7156 | return 0; | |
7157 | } | |
2cc699af | 7158 | |
7ccc4cc4 | 7159 | if (super->orom && (super->orom->attr & IMSM_OROM_ATTR_2TB) == 0 && |
2cc699af | 7160 | (calc_array_size(level, raiddisks, layout, *chunk, size) >> 32) > 0) { |
676e87a8 | 7161 | pr_vrb("platform does not support a volume size over 2TB\n"); |
2cc699af CA |
7162 | return 0; |
7163 | } | |
614902f6 | 7164 | |
6592ce37 DW |
7165 | return 1; |
7166 | } | |
7167 | ||
1011e834 | 7168 | /* validate_geometry_imsm_volume - lifted from validate_geometry_ddf_bvd |
c2c087e6 DW |
7169 | * FIX ME add ahci details |
7170 | */ | |
8b353278 | 7171 | static int validate_geometry_imsm_volume(struct supertype *st, int level, |
c21e737b | 7172 | int layout, int raiddisks, int *chunk, |
af4348dd N |
7173 | unsigned long long size, |
7174 | unsigned long long data_offset, | |
7175 | char *dev, | |
2c514b71 NB |
7176 | unsigned long long *freesize, |
7177 | int verbose) | |
cdddbdbc | 7178 | { |
9e04ac1c | 7179 | dev_t rdev; |
c2c087e6 | 7180 | struct intel_super *super = st->sb; |
b2916f25 | 7181 | struct imsm_super *mpb; |
c2c087e6 DW |
7182 | struct dl *dl; |
7183 | unsigned long long pos = 0; | |
7184 | unsigned long long maxsize; | |
7185 | struct extent *e; | |
7186 | int i; | |
cdddbdbc | 7187 | |
88c32bb1 DW |
7188 | /* We must have the container info already read in. */ |
7189 | if (!super) | |
c2c087e6 DW |
7190 | return 0; |
7191 | ||
b2916f25 JS |
7192 | mpb = super->anchor; |
7193 | ||
2cc699af | 7194 | if (!validate_geometry_imsm_orom(super, level, layout, raiddisks, chunk, size, verbose)) { |
3e684231 | 7195 | pr_err("RAID geometry validation failed. Cannot proceed with the action(s).\n"); |
c2c087e6 | 7196 | return 0; |
d54559f0 | 7197 | } |
c2c087e6 DW |
7198 | if (!dev) { |
7199 | /* General test: make sure there is space for | |
2da8544a DW |
7200 | * 'raiddisks' device extents of size 'size' at a given |
7201 | * offset | |
c2c087e6 | 7202 | */ |
e46273eb | 7203 | unsigned long long minsize = size; |
b7528a20 | 7204 | unsigned long long start_offset = MaxSector; |
c2c087e6 DW |
7205 | int dcnt = 0; |
7206 | if (minsize == 0) | |
7207 | minsize = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
7208 | for (dl = super->disks; dl ; dl = dl->next) { | |
7209 | int found = 0; | |
7210 | ||
bf5a934a | 7211 | pos = 0; |
c2c087e6 | 7212 | i = 0; |
05501181 | 7213 | e = get_extents(super, dl, 0); |
c2c087e6 DW |
7214 | if (!e) continue; |
7215 | do { | |
7216 | unsigned long long esize; | |
7217 | esize = e[i].start - pos; | |
7218 | if (esize >= minsize) | |
7219 | found = 1; | |
b7528a20 | 7220 | if (found && start_offset == MaxSector) { |
2da8544a DW |
7221 | start_offset = pos; |
7222 | break; | |
7223 | } else if (found && pos != start_offset) { | |
7224 | found = 0; | |
7225 | break; | |
7226 | } | |
c2c087e6 DW |
7227 | pos = e[i].start + e[i].size; |
7228 | i++; | |
7229 | } while (e[i-1].size); | |
7230 | if (found) | |
7231 | dcnt++; | |
7232 | free(e); | |
7233 | } | |
7234 | if (dcnt < raiddisks) { | |
2c514b71 | 7235 | if (verbose) |
7a862a02 | 7236 | pr_err("imsm: Not enough devices with space for this array (%d < %d)\n", |
2c514b71 | 7237 | dcnt, raiddisks); |
c2c087e6 DW |
7238 | return 0; |
7239 | } | |
7240 | return 1; | |
7241 | } | |
0dcecb2e | 7242 | |
c2c087e6 | 7243 | /* This device must be a member of the set */ |
9e04ac1c | 7244 | if (!stat_is_blkdev(dev, &rdev)) |
c2c087e6 DW |
7245 | return 0; |
7246 | for (dl = super->disks ; dl ; dl = dl->next) { | |
9e04ac1c ZL |
7247 | if (dl->major == (int)major(rdev) && |
7248 | dl->minor == (int)minor(rdev)) | |
c2c087e6 DW |
7249 | break; |
7250 | } | |
7251 | if (!dl) { | |
2c514b71 | 7252 | if (verbose) |
7a862a02 | 7253 | pr_err("%s is not in the same imsm set\n", dev); |
c2c087e6 | 7254 | return 0; |
a20d2ba5 DW |
7255 | } else if (super->orom && dl->index < 0 && mpb->num_raid_devs) { |
7256 | /* If a volume is present then the current creation attempt | |
7257 | * cannot incorporate new spares because the orom may not | |
7258 | * understand this configuration (all member disks must be | |
7259 | * members of each array in the container). | |
7260 | */ | |
7a862a02 N |
7261 | pr_err("%s is a spare and a volume is already defined for this container\n", dev); |
7262 | pr_err("The option-rom requires all member disks to be a member of all volumes\n"); | |
a20d2ba5 | 7263 | return 0; |
5fe62b94 WD |
7264 | } else if (super->orom && mpb->num_raid_devs > 0 && |
7265 | mpb->num_disks != raiddisks) { | |
7a862a02 | 7266 | pr_err("The option-rom requires all member disks to be a member of all volumes\n"); |
5fe62b94 | 7267 | return 0; |
c2c087e6 | 7268 | } |
0dcecb2e DW |
7269 | |
7270 | /* retrieve the largest free space block */ | |
05501181 | 7271 | e = get_extents(super, dl, 0); |
c2c087e6 DW |
7272 | maxsize = 0; |
7273 | i = 0; | |
0dcecb2e DW |
7274 | if (e) { |
7275 | do { | |
7276 | unsigned long long esize; | |
7277 | ||
7278 | esize = e[i].start - pos; | |
7279 | if (esize >= maxsize) | |
7280 | maxsize = esize; | |
7281 | pos = e[i].start + e[i].size; | |
7282 | i++; | |
7283 | } while (e[i-1].size); | |
7284 | dl->e = e; | |
7285 | dl->extent_cnt = i; | |
7286 | } else { | |
7287 | if (verbose) | |
e7b84f9d | 7288 | pr_err("unable to determine free space for: %s\n", |
0dcecb2e DW |
7289 | dev); |
7290 | return 0; | |
7291 | } | |
7292 | if (maxsize < size) { | |
7293 | if (verbose) | |
e7b84f9d | 7294 | pr_err("%s not enough space (%llu < %llu)\n", |
0dcecb2e DW |
7295 | dev, maxsize, size); |
7296 | return 0; | |
7297 | } | |
7298 | ||
7299 | /* count total number of extents for merge */ | |
7300 | i = 0; | |
7301 | for (dl = super->disks; dl; dl = dl->next) | |
7302 | if (dl->e) | |
7303 | i += dl->extent_cnt; | |
7304 | ||
7305 | maxsize = merge_extents(super, i); | |
3baa56ab | 7306 | |
1a1ced1e KS |
7307 | if (mpb->num_raid_devs > 0 && size && size != maxsize) |
7308 | pr_err("attempting to create a second volume with size less then remaining space.\n"); | |
3baa56ab | 7309 | |
a7dd165b | 7310 | if (maxsize < size || maxsize == 0) { |
b3071342 LD |
7311 | if (verbose) { |
7312 | if (maxsize == 0) | |
7a862a02 | 7313 | pr_err("no free space left on device. Aborting...\n"); |
b3071342 | 7314 | else |
7a862a02 | 7315 | pr_err("not enough space to create volume of given size (%llu < %llu). Aborting...\n", |
b3071342 LD |
7316 | maxsize, size); |
7317 | } | |
0dcecb2e | 7318 | return 0; |
0dcecb2e DW |
7319 | } |
7320 | ||
c2c087e6 DW |
7321 | *freesize = maxsize; |
7322 | ||
ca9de185 | 7323 | if (super->orom) { |
72a45777 | 7324 | int count = count_volumes(super->hba, |
ca9de185 LM |
7325 | super->orom->dpa, verbose); |
7326 | if (super->orom->vphba <= count) { | |
676e87a8 | 7327 | pr_vrb("platform does not support more than %d raid volumes.\n", |
ca9de185 LM |
7328 | super->orom->vphba); |
7329 | return 0; | |
7330 | } | |
7331 | } | |
c2c087e6 | 7332 | return 1; |
cdddbdbc DW |
7333 | } |
7334 | ||
13bcac90 | 7335 | static int imsm_get_free_size(struct supertype *st, int raiddisks, |
efb30e7f DW |
7336 | unsigned long long size, int chunk, |
7337 | unsigned long long *freesize) | |
7338 | { | |
7339 | struct intel_super *super = st->sb; | |
7340 | struct imsm_super *mpb = super->anchor; | |
7341 | struct dl *dl; | |
7342 | int i; | |
7343 | int extent_cnt; | |
7344 | struct extent *e; | |
7345 | unsigned long long maxsize; | |
7346 | unsigned long long minsize; | |
7347 | int cnt; | |
7348 | int used; | |
7349 | ||
7350 | /* find the largest common start free region of the possible disks */ | |
7351 | used = 0; | |
7352 | extent_cnt = 0; | |
7353 | cnt = 0; | |
7354 | for (dl = super->disks; dl; dl = dl->next) { | |
7355 | dl->raiddisk = -1; | |
7356 | ||
7357 | if (dl->index >= 0) | |
7358 | used++; | |
7359 | ||
7360 | /* don't activate new spares if we are orom constrained | |
7361 | * and there is already a volume active in the container | |
7362 | */ | |
7363 | if (super->orom && dl->index < 0 && mpb->num_raid_devs) | |
7364 | continue; | |
7365 | ||
05501181 | 7366 | e = get_extents(super, dl, 0); |
efb30e7f DW |
7367 | if (!e) |
7368 | continue; | |
7369 | for (i = 1; e[i-1].size; i++) | |
7370 | ; | |
7371 | dl->e = e; | |
7372 | dl->extent_cnt = i; | |
7373 | extent_cnt += i; | |
7374 | cnt++; | |
7375 | } | |
7376 | ||
7377 | maxsize = merge_extents(super, extent_cnt); | |
7378 | minsize = size; | |
7379 | if (size == 0) | |
612e59d8 CA |
7380 | /* chunk is in K */ |
7381 | minsize = chunk * 2; | |
efb30e7f DW |
7382 | |
7383 | if (cnt < raiddisks || | |
7384 | (super->orom && used && used != raiddisks) || | |
a7dd165b DW |
7385 | maxsize < minsize || |
7386 | maxsize == 0) { | |
e7b84f9d | 7387 | pr_err("not enough devices with space to create array.\n"); |
efb30e7f DW |
7388 | return 0; /* No enough free spaces large enough */ |
7389 | } | |
7390 | ||
7391 | if (size == 0) { | |
7392 | size = maxsize; | |
7393 | if (chunk) { | |
612e59d8 CA |
7394 | size /= 2 * chunk; |
7395 | size *= 2 * chunk; | |
efb30e7f | 7396 | } |
f878b242 LM |
7397 | maxsize = size; |
7398 | } | |
1a1ced1e KS |
7399 | if (mpb->num_raid_devs > 0 && size && size != maxsize) |
7400 | pr_err("attempting to create a second volume with size less then remaining space.\n"); | |
efb30e7f DW |
7401 | cnt = 0; |
7402 | for (dl = super->disks; dl; dl = dl->next) | |
7403 | if (dl->e) | |
7404 | dl->raiddisk = cnt++; | |
7405 | ||
7406 | *freesize = size; | |
7407 | ||
13bcac90 AK |
7408 | dprintf("imsm: imsm_get_free_size() returns : %llu\n", size); |
7409 | ||
efb30e7f DW |
7410 | return 1; |
7411 | } | |
7412 | ||
13bcac90 AK |
7413 | static int reserve_space(struct supertype *st, int raiddisks, |
7414 | unsigned long long size, int chunk, | |
7415 | unsigned long long *freesize) | |
7416 | { | |
7417 | struct intel_super *super = st->sb; | |
7418 | struct dl *dl; | |
7419 | int cnt; | |
7420 | int rv = 0; | |
7421 | ||
7422 | rv = imsm_get_free_size(st, raiddisks, size, chunk, freesize); | |
7423 | if (rv) { | |
7424 | cnt = 0; | |
7425 | for (dl = super->disks; dl; dl = dl->next) | |
7426 | if (dl->e) | |
7427 | dl->raiddisk = cnt++; | |
7428 | rv = 1; | |
7429 | } | |
7430 | ||
7431 | return rv; | |
7432 | } | |
7433 | ||
bf5a934a | 7434 | static int validate_geometry_imsm(struct supertype *st, int level, int layout, |
c21e737b | 7435 | int raiddisks, int *chunk, unsigned long long size, |
af4348dd | 7436 | unsigned long long data_offset, |
bf5a934a | 7437 | char *dev, unsigned long long *freesize, |
5308f117 | 7438 | int consistency_policy, int verbose) |
bf5a934a DW |
7439 | { |
7440 | int fd, cfd; | |
7441 | struct mdinfo *sra; | |
20cbe8d2 | 7442 | int is_member = 0; |
bf5a934a | 7443 | |
d54559f0 LM |
7444 | /* load capability |
7445 | * if given unused devices create a container | |
bf5a934a DW |
7446 | * if given given devices in a container create a member volume |
7447 | */ | |
7448 | if (level == LEVEL_CONTAINER) { | |
7449 | /* Must be a fresh device to add to a container */ | |
7450 | return validate_geometry_imsm_container(st, level, layout, | |
c21e737b | 7451 | raiddisks, |
7ccc4cc4 | 7452 | *chunk, |
af4348dd | 7453 | size, data_offset, |
bf5a934a DW |
7454 | dev, freesize, |
7455 | verbose); | |
7456 | } | |
9587c373 | 7457 | |
06a6101c BK |
7458 | /* |
7459 | * Size is given in sectors. | |
7460 | */ | |
7461 | if (size && (size < 2048)) { | |
22dc741f | 7462 | pr_err("Given size must be greater than 1M.\n"); |
54865c30 RS |
7463 | /* Depends on algorithm in Create.c : |
7464 | * if container was given (dev == NULL) return -1, | |
7465 | * if block device was given ( dev != NULL) return 0. | |
7466 | */ | |
7467 | return dev ? -1 : 0; | |
7468 | } | |
7469 | ||
8592f29d | 7470 | if (!dev) { |
e91a3bad | 7471 | if (st->sb) { |
ca9de185 | 7472 | struct intel_super *super = st->sb; |
e91a3bad | 7473 | if (!validate_geometry_imsm_orom(st->sb, level, layout, |
2cc699af | 7474 | raiddisks, chunk, size, |
e91a3bad LM |
7475 | verbose)) |
7476 | return 0; | |
efb30e7f DW |
7477 | /* we are being asked to automatically layout a |
7478 | * new volume based on the current contents of | |
7479 | * the container. If the the parameters can be | |
7480 | * satisfied reserve_space will record the disks, | |
7481 | * start offset, and size of the volume to be | |
7482 | * created. add_to_super and getinfo_super | |
7483 | * detect when autolayout is in progress. | |
7484 | */ | |
ca9de185 LM |
7485 | /* assuming that freesize is always given when array is |
7486 | created */ | |
7487 | if (super->orom && freesize) { | |
7488 | int count; | |
72a45777 | 7489 | count = count_volumes(super->hba, |
ca9de185 LM |
7490 | super->orom->dpa, verbose); |
7491 | if (super->orom->vphba <= count) { | |
676e87a8 | 7492 | pr_vrb("platform does not support more than %d raid volumes.\n", |
ca9de185 LM |
7493 | super->orom->vphba); |
7494 | return 0; | |
7495 | } | |
7496 | } | |
e91a3bad LM |
7497 | if (freesize) |
7498 | return reserve_space(st, raiddisks, size, | |
7ccc4cc4 | 7499 | *chunk, freesize); |
8592f29d N |
7500 | } |
7501 | return 1; | |
7502 | } | |
bf5a934a DW |
7503 | if (st->sb) { |
7504 | /* creating in a given container */ | |
7505 | return validate_geometry_imsm_volume(st, level, layout, | |
7506 | raiddisks, chunk, size, | |
af4348dd | 7507 | data_offset, |
bf5a934a DW |
7508 | dev, freesize, verbose); |
7509 | } | |
7510 | ||
bf5a934a DW |
7511 | /* This device needs to be a device in an 'imsm' container */ |
7512 | fd = open(dev, O_RDONLY|O_EXCL, 0); | |
7513 | if (fd >= 0) { | |
7514 | if (verbose) | |
e7b84f9d N |
7515 | pr_err("Cannot create this array on device %s\n", |
7516 | dev); | |
bf5a934a DW |
7517 | close(fd); |
7518 | return 0; | |
7519 | } | |
7520 | if (errno != EBUSY || (fd = open(dev, O_RDONLY, 0)) < 0) { | |
7521 | if (verbose) | |
e7b84f9d | 7522 | pr_err("Cannot open %s: %s\n", |
bf5a934a DW |
7523 | dev, strerror(errno)); |
7524 | return 0; | |
7525 | } | |
7526 | /* Well, it is in use by someone, maybe an 'imsm' container. */ | |
7527 | cfd = open_container(fd); | |
20cbe8d2 | 7528 | close(fd); |
bf5a934a | 7529 | if (cfd < 0) { |
bf5a934a | 7530 | if (verbose) |
e7b84f9d | 7531 | pr_err("Cannot use %s: It is busy\n", |
bf5a934a DW |
7532 | dev); |
7533 | return 0; | |
7534 | } | |
4dd2df09 | 7535 | sra = sysfs_read(cfd, NULL, GET_VERSION); |
bf5a934a | 7536 | if (sra && sra->array.major_version == -1 && |
20cbe8d2 AW |
7537 | strcmp(sra->text_version, "imsm") == 0) |
7538 | is_member = 1; | |
7539 | sysfs_free(sra); | |
7540 | if (is_member) { | |
bf5a934a DW |
7541 | /* This is a member of a imsm container. Load the container |
7542 | * and try to create a volume | |
7543 | */ | |
7544 | struct intel_super *super; | |
7545 | ||
ec50f7b6 | 7546 | if (load_super_imsm_all(st, cfd, (void **) &super, NULL, NULL, 1) == 0) { |
bf5a934a | 7547 | st->sb = super; |
4dd2df09 | 7548 | strcpy(st->container_devnm, fd2devnm(cfd)); |
bf5a934a DW |
7549 | close(cfd); |
7550 | return validate_geometry_imsm_volume(st, level, layout, | |
7551 | raiddisks, chunk, | |
af4348dd | 7552 | size, data_offset, dev, |
ecbd9e81 N |
7553 | freesize, 1) |
7554 | ? 1 : -1; | |
bf5a934a | 7555 | } |
20cbe8d2 | 7556 | } |
bf5a934a | 7557 | |
20cbe8d2 | 7558 | if (verbose) |
e7b84f9d | 7559 | pr_err("failed container membership check\n"); |
20cbe8d2 AW |
7560 | |
7561 | close(cfd); | |
7562 | return 0; | |
bf5a934a | 7563 | } |
0bd16cf2 | 7564 | |
30f58b22 | 7565 | static void default_geometry_imsm(struct supertype *st, int *level, int *layout, int *chunk) |
0bd16cf2 DJ |
7566 | { |
7567 | struct intel_super *super = st->sb; | |
7568 | ||
30f58b22 DW |
7569 | if (level && *level == UnSet) |
7570 | *level = LEVEL_CONTAINER; | |
7571 | ||
7572 | if (level && layout && *layout == UnSet) | |
7573 | *layout = imsm_level_to_layout(*level); | |
0bd16cf2 | 7574 | |
cd9d1ac7 DW |
7575 | if (chunk && (*chunk == UnSet || *chunk == 0)) |
7576 | *chunk = imsm_default_chunk(super->orom); | |
0bd16cf2 DJ |
7577 | } |
7578 | ||
33414a01 DW |
7579 | static void handle_missing(struct intel_super *super, struct imsm_dev *dev); |
7580 | ||
3364781b | 7581 | static int kill_subarray_imsm(struct supertype *st, char *subarray_id) |
33414a01 | 7582 | { |
3364781b | 7583 | /* remove the subarray currently referenced by subarray_id */ |
33414a01 DW |
7584 | __u8 i; |
7585 | struct intel_dev **dp; | |
7586 | struct intel_super *super = st->sb; | |
3364781b | 7587 | __u8 current_vol = strtoul(subarray_id, NULL, 10); |
33414a01 DW |
7588 | struct imsm_super *mpb = super->anchor; |
7589 | ||
3364781b | 7590 | if (mpb->num_raid_devs == 0) |
33414a01 | 7591 | return 2; |
33414a01 DW |
7592 | |
7593 | /* block deletions that would change the uuid of active subarrays | |
7594 | * | |
7595 | * FIXME when immutable ids are available, but note that we'll | |
7596 | * also need to fixup the invalidated/active subarray indexes in | |
7597 | * mdstat | |
7598 | */ | |
7599 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
7600 | char subarray[4]; | |
7601 | ||
7602 | if (i < current_vol) | |
7603 | continue; | |
7604 | sprintf(subarray, "%u", i); | |
4dd2df09 | 7605 | if (is_subarray_active(subarray, st->devnm)) { |
e7b84f9d N |
7606 | pr_err("deleting subarray-%d would change the UUID of active subarray-%d, aborting\n", |
7607 | current_vol, i); | |
33414a01 DW |
7608 | |
7609 | return 2; | |
7610 | } | |
7611 | } | |
7612 | ||
7613 | if (st->update_tail) { | |
503975b9 | 7614 | struct imsm_update_kill_array *u = xmalloc(sizeof(*u)); |
33414a01 | 7615 | |
33414a01 DW |
7616 | u->type = update_kill_array; |
7617 | u->dev_idx = current_vol; | |
7618 | append_metadata_update(st, u, sizeof(*u)); | |
7619 | ||
7620 | return 0; | |
7621 | } | |
7622 | ||
7623 | for (dp = &super->devlist; *dp;) | |
7624 | if ((*dp)->index == current_vol) { | |
7625 | *dp = (*dp)->next; | |
7626 | } else { | |
7627 | handle_missing(super, (*dp)->dev); | |
7628 | if ((*dp)->index > current_vol) | |
7629 | (*dp)->index--; | |
7630 | dp = &(*dp)->next; | |
7631 | } | |
7632 | ||
7633 | /* no more raid devices, all active components are now spares, | |
7634 | * but of course failed are still failed | |
7635 | */ | |
7636 | if (--mpb->num_raid_devs == 0) { | |
7637 | struct dl *d; | |
7638 | ||
7639 | for (d = super->disks; d; d = d->next) | |
a8619d23 AK |
7640 | if (d->index > -2) |
7641 | mark_spare(d); | |
33414a01 DW |
7642 | } |
7643 | ||
7644 | super->updates_pending++; | |
7645 | ||
7646 | return 0; | |
7647 | } | |
aa534678 | 7648 | |
a951a4f7 | 7649 | static int update_subarray_imsm(struct supertype *st, char *subarray, |
fa56eddb | 7650 | char *update, struct mddev_ident *ident) |
aa534678 DW |
7651 | { |
7652 | /* update the subarray currently referenced by ->current_vol */ | |
7653 | struct intel_super *super = st->sb; | |
7654 | struct imsm_super *mpb = super->anchor; | |
7655 | ||
aa534678 DW |
7656 | if (strcmp(update, "name") == 0) { |
7657 | char *name = ident->name; | |
a951a4f7 N |
7658 | char *ep; |
7659 | int vol; | |
aa534678 | 7660 | |
4dd2df09 | 7661 | if (is_subarray_active(subarray, st->devnm)) { |
e7b84f9d | 7662 | pr_err("Unable to update name of active subarray\n"); |
aa534678 DW |
7663 | return 2; |
7664 | } | |
7665 | ||
7666 | if (!check_name(super, name, 0)) | |
7667 | return 2; | |
7668 | ||
a951a4f7 N |
7669 | vol = strtoul(subarray, &ep, 10); |
7670 | if (*ep != '\0' || vol >= super->anchor->num_raid_devs) | |
7671 | return 2; | |
7672 | ||
aa534678 | 7673 | if (st->update_tail) { |
503975b9 | 7674 | struct imsm_update_rename_array *u = xmalloc(sizeof(*u)); |
aa534678 | 7675 | |
aa534678 | 7676 | u->type = update_rename_array; |
a951a4f7 | 7677 | u->dev_idx = vol; |
618f4e6d XN |
7678 | strncpy((char *) u->name, name, MAX_RAID_SERIAL_LEN); |
7679 | u->name[MAX_RAID_SERIAL_LEN-1] = '\0'; | |
aa534678 DW |
7680 | append_metadata_update(st, u, sizeof(*u)); |
7681 | } else { | |
7682 | struct imsm_dev *dev; | |
ebad3af2 | 7683 | int i, namelen; |
aa534678 | 7684 | |
a951a4f7 | 7685 | dev = get_imsm_dev(super, vol); |
ebad3af2 JS |
7686 | memset(dev->volume, '\0', MAX_RAID_SERIAL_LEN); |
7687 | namelen = min((int)strlen(name), MAX_RAID_SERIAL_LEN); | |
7688 | memcpy(dev->volume, name, namelen); | |
aa534678 DW |
7689 | for (i = 0; i < mpb->num_raid_devs; i++) { |
7690 | dev = get_imsm_dev(super, i); | |
7691 | handle_missing(super, dev); | |
7692 | } | |
7693 | super->updates_pending++; | |
7694 | } | |
e6e9dd3f AP |
7695 | } else if (strcmp(update, "ppl") == 0 || |
7696 | strcmp(update, "no-ppl") == 0) { | |
7697 | int new_policy; | |
7698 | char *ep; | |
7699 | int vol = strtoul(subarray, &ep, 10); | |
7700 | ||
7701 | if (*ep != '\0' || vol >= super->anchor->num_raid_devs) | |
7702 | return 2; | |
7703 | ||
7704 | if (strcmp(update, "ppl") == 0) | |
c2462068 | 7705 | new_policy = RWH_MULTIPLE_DISTRIBUTED; |
e6e9dd3f | 7706 | else |
c2462068 | 7707 | new_policy = RWH_MULTIPLE_OFF; |
e6e9dd3f AP |
7708 | |
7709 | if (st->update_tail) { | |
7710 | struct imsm_update_rwh_policy *u = xmalloc(sizeof(*u)); | |
7711 | ||
7712 | u->type = update_rwh_policy; | |
7713 | u->dev_idx = vol; | |
7714 | u->new_policy = new_policy; | |
7715 | append_metadata_update(st, u, sizeof(*u)); | |
7716 | } else { | |
7717 | struct imsm_dev *dev; | |
7718 | ||
7719 | dev = get_imsm_dev(super, vol); | |
7720 | dev->rwh_policy = new_policy; | |
7721 | super->updates_pending++; | |
7722 | } | |
aa534678 DW |
7723 | } else |
7724 | return 2; | |
7725 | ||
7726 | return 0; | |
7727 | } | |
bf5a934a | 7728 | |
28bce06f AK |
7729 | static int is_gen_migration(struct imsm_dev *dev) |
7730 | { | |
7534230b AK |
7731 | if (dev == NULL) |
7732 | return 0; | |
7733 | ||
28bce06f AK |
7734 | if (!dev->vol.migr_state) |
7735 | return 0; | |
7736 | ||
7737 | if (migr_type(dev) == MIGR_GEN_MIGR) | |
7738 | return 1; | |
7739 | ||
7740 | return 0; | |
7741 | } | |
7742 | ||
1e5c6983 DW |
7743 | static int is_rebuilding(struct imsm_dev *dev) |
7744 | { | |
7745 | struct imsm_map *migr_map; | |
7746 | ||
7747 | if (!dev->vol.migr_state) | |
7748 | return 0; | |
7749 | ||
7750 | if (migr_type(dev) != MIGR_REBUILD) | |
7751 | return 0; | |
7752 | ||
238c0a71 | 7753 | migr_map = get_imsm_map(dev, MAP_1); |
1e5c6983 DW |
7754 | |
7755 | if (migr_map->map_state == IMSM_T_STATE_DEGRADED) | |
7756 | return 1; | |
7757 | else | |
7758 | return 0; | |
7759 | } | |
7760 | ||
6ce1fbf1 AK |
7761 | static int is_initializing(struct imsm_dev *dev) |
7762 | { | |
7763 | struct imsm_map *migr_map; | |
7764 | ||
7765 | if (!dev->vol.migr_state) | |
7766 | return 0; | |
7767 | ||
7768 | if (migr_type(dev) != MIGR_INIT) | |
7769 | return 0; | |
7770 | ||
238c0a71 | 7771 | migr_map = get_imsm_map(dev, MAP_1); |
6ce1fbf1 AK |
7772 | |
7773 | if (migr_map->map_state == IMSM_T_STATE_UNINITIALIZED) | |
7774 | return 1; | |
7775 | ||
7776 | return 0; | |
6ce1fbf1 AK |
7777 | } |
7778 | ||
c47b0ff6 AK |
7779 | static void update_recovery_start(struct intel_super *super, |
7780 | struct imsm_dev *dev, | |
7781 | struct mdinfo *array) | |
1e5c6983 DW |
7782 | { |
7783 | struct mdinfo *rebuild = NULL; | |
7784 | struct mdinfo *d; | |
7785 | __u32 units; | |
7786 | ||
7787 | if (!is_rebuilding(dev)) | |
7788 | return; | |
7789 | ||
7790 | /* Find the rebuild target, but punt on the dual rebuild case */ | |
7791 | for (d = array->devs; d; d = d->next) | |
7792 | if (d->recovery_start == 0) { | |
7793 | if (rebuild) | |
7794 | return; | |
7795 | rebuild = d; | |
7796 | } | |
7797 | ||
4363fd80 DW |
7798 | if (!rebuild) { |
7799 | /* (?) none of the disks are marked with | |
7800 | * IMSM_ORD_REBUILD, so assume they are missing and the | |
7801 | * disk_ord_tbl was not correctly updated | |
7802 | */ | |
1ade5cc1 | 7803 | dprintf("failed to locate out-of-sync disk\n"); |
4363fd80 DW |
7804 | return; |
7805 | } | |
7806 | ||
1e5c6983 | 7807 | units = __le32_to_cpu(dev->vol.curr_migr_unit); |
c47b0ff6 | 7808 | rebuild->recovery_start = units * blocks_per_migr_unit(super, dev); |
1e5c6983 DW |
7809 | } |
7810 | ||
276d77db | 7811 | static int recover_backup_imsm(struct supertype *st, struct mdinfo *info); |
1e5c6983 | 7812 | |
00bbdbda | 7813 | static struct mdinfo *container_content_imsm(struct supertype *st, char *subarray) |
cdddbdbc | 7814 | { |
4f5bc454 DW |
7815 | /* Given a container loaded by load_super_imsm_all, |
7816 | * extract information about all the arrays into | |
7817 | * an mdinfo tree. | |
00bbdbda | 7818 | * If 'subarray' is given, just extract info about that array. |
4f5bc454 DW |
7819 | * |
7820 | * For each imsm_dev create an mdinfo, fill it in, | |
7821 | * then look for matching devices in super->disks | |
7822 | * and create appropriate device mdinfo. | |
7823 | */ | |
7824 | struct intel_super *super = st->sb; | |
949c47a0 | 7825 | struct imsm_super *mpb = super->anchor; |
4f5bc454 | 7826 | struct mdinfo *rest = NULL; |
00bbdbda | 7827 | unsigned int i; |
81219e70 | 7828 | int sb_errors = 0; |
abef11a3 AK |
7829 | struct dl *d; |
7830 | int spare_disks = 0; | |
b6180160 | 7831 | int current_vol = super->current_vol; |
cdddbdbc | 7832 | |
19482bcc AK |
7833 | /* do not assemble arrays when not all attributes are supported */ |
7834 | if (imsm_check_attributes(mpb->attributes) == 0) { | |
81219e70 | 7835 | sb_errors = 1; |
7a862a02 | 7836 | pr_err("Unsupported attributes in IMSM metadata.Arrays activation is blocked.\n"); |
19482bcc AK |
7837 | } |
7838 | ||
abef11a3 AK |
7839 | /* count spare devices, not used in maps |
7840 | */ | |
7841 | for (d = super->disks; d; d = d->next) | |
7842 | if (d->index == -1) | |
7843 | spare_disks++; | |
7844 | ||
4f5bc454 | 7845 | for (i = 0; i < mpb->num_raid_devs; i++) { |
00bbdbda N |
7846 | struct imsm_dev *dev; |
7847 | struct imsm_map *map; | |
86e3692b | 7848 | struct imsm_map *map2; |
4f5bc454 | 7849 | struct mdinfo *this; |
a6482415 | 7850 | int slot; |
a6482415 | 7851 | int chunk; |
00bbdbda | 7852 | char *ep; |
8b9cd157 | 7853 | int level; |
00bbdbda N |
7854 | |
7855 | if (subarray && | |
7856 | (i != strtoul(subarray, &ep, 10) || *ep != '\0')) | |
7857 | continue; | |
7858 | ||
7859 | dev = get_imsm_dev(super, i); | |
238c0a71 AK |
7860 | map = get_imsm_map(dev, MAP_0); |
7861 | map2 = get_imsm_map(dev, MAP_1); | |
8b9cd157 | 7862 | level = get_imsm_raid_level(map); |
4f5bc454 | 7863 | |
1ce0101c DW |
7864 | /* do not publish arrays that are in the middle of an |
7865 | * unsupported migration | |
7866 | */ | |
7867 | if (dev->vol.migr_state && | |
28bce06f | 7868 | (migr_type(dev) == MIGR_STATE_CHANGE)) { |
7a862a02 | 7869 | pr_err("cannot assemble volume '%.16s': unsupported migration in progress\n", |
1ce0101c DW |
7870 | dev->volume); |
7871 | continue; | |
7872 | } | |
2db86302 LM |
7873 | /* do not publish arrays that are not support by controller's |
7874 | * OROM/EFI | |
7875 | */ | |
1ce0101c | 7876 | |
503975b9 | 7877 | this = xmalloc(sizeof(*this)); |
4f5bc454 | 7878 | |
301406c9 | 7879 | super->current_vol = i; |
a5d85af7 | 7880 | getinfo_super_imsm_volume(st, this, NULL); |
9894ec0d | 7881 | this->next = rest; |
a6482415 | 7882 | chunk = __le16_to_cpu(map->blocks_per_strip) >> 1; |
81219e70 LM |
7883 | /* mdadm does not support all metadata features- set the bit in all arrays state */ |
7884 | if (!validate_geometry_imsm_orom(super, | |
8b9cd157 MK |
7885 | level, /* RAID level */ |
7886 | imsm_level_to_layout(level), | |
81219e70 | 7887 | map->num_members, /* raid disks */ |
fcc2c9da | 7888 | &chunk, imsm_dev_size(dev), |
81219e70 | 7889 | 1 /* verbose */)) { |
7a862a02 | 7890 | pr_err("IMSM RAID geometry validation failed. Array %s activation is blocked.\n", |
81219e70 LM |
7891 | dev->volume); |
7892 | this->array.state |= | |
7893 | (1<<MD_SB_BLOCK_CONTAINER_RESHAPE) | | |
7894 | (1<<MD_SB_BLOCK_VOLUME); | |
7895 | } | |
81219e70 LM |
7896 | |
7897 | /* if array has bad blocks, set suitable bit in all arrays state */ | |
7898 | if (sb_errors) | |
7899 | this->array.state |= | |
7900 | (1<<MD_SB_BLOCK_CONTAINER_RESHAPE) | | |
7901 | (1<<MD_SB_BLOCK_VOLUME); | |
7902 | ||
4f5bc454 | 7903 | for (slot = 0 ; slot < map->num_members; slot++) { |
1e5c6983 | 7904 | unsigned long long recovery_start; |
4f5bc454 DW |
7905 | struct mdinfo *info_d; |
7906 | struct dl *d; | |
7907 | int idx; | |
9a1608e5 | 7908 | int skip; |
7eef0453 | 7909 | __u32 ord; |
8b9cd157 | 7910 | int missing = 0; |
4f5bc454 | 7911 | |
9a1608e5 | 7912 | skip = 0; |
238c0a71 AK |
7913 | idx = get_imsm_disk_idx(dev, slot, MAP_0); |
7914 | ord = get_imsm_ord_tbl_ent(dev, slot, MAP_X); | |
4f5bc454 DW |
7915 | for (d = super->disks; d ; d = d->next) |
7916 | if (d->index == idx) | |
0fbd635c | 7917 | break; |
4f5bc454 | 7918 | |
1e5c6983 | 7919 | recovery_start = MaxSector; |
4f5bc454 | 7920 | if (d == NULL) |
9a1608e5 | 7921 | skip = 1; |
25ed7e59 | 7922 | if (d && is_failed(&d->disk)) |
9a1608e5 | 7923 | skip = 1; |
8b9cd157 | 7924 | if (!skip && (ord & IMSM_ORD_REBUILD)) |
1e5c6983 | 7925 | recovery_start = 0; |
1e93d0d1 BK |
7926 | if (!(ord & IMSM_ORD_REBUILD)) |
7927 | this->array.working_disks++; | |
1011e834 | 7928 | /* |
9a1608e5 | 7929 | * if we skip some disks the array will be assmebled degraded; |
1e5c6983 DW |
7930 | * reset resync start to avoid a dirty-degraded |
7931 | * situation when performing the intial sync | |
9a1608e5 | 7932 | */ |
8b9cd157 MK |
7933 | if (skip) |
7934 | missing++; | |
7935 | ||
7936 | if (!(dev->vol.dirty & RAIDVOL_DIRTY)) { | |
7937 | if ((!able_to_resync(level, missing) || | |
7938 | recovery_start == 0)) | |
7939 | this->resync_start = MaxSector; | |
7940 | } else { | |
7941 | /* | |
7942 | * FIXME handle dirty degraded | |
7943 | */ | |
7944 | } | |
7945 | ||
9a1608e5 DW |
7946 | if (skip) |
7947 | continue; | |
4f5bc454 | 7948 | |
503975b9 | 7949 | info_d = xcalloc(1, sizeof(*info_d)); |
4f5bc454 DW |
7950 | info_d->next = this->devs; |
7951 | this->devs = info_d; | |
7952 | ||
4f5bc454 DW |
7953 | info_d->disk.number = d->index; |
7954 | info_d->disk.major = d->major; | |
7955 | info_d->disk.minor = d->minor; | |
7956 | info_d->disk.raid_disk = slot; | |
1e5c6983 | 7957 | info_d->recovery_start = recovery_start; |
86e3692b AK |
7958 | if (map2) { |
7959 | if (slot < map2->num_members) | |
7960 | info_d->disk.state = (1 << MD_DISK_ACTIVE); | |
04c3c514 AK |
7961 | else |
7962 | this->array.spare_disks++; | |
86e3692b AK |
7963 | } else { |
7964 | if (slot < map->num_members) | |
7965 | info_d->disk.state = (1 << MD_DISK_ACTIVE); | |
04c3c514 AK |
7966 | else |
7967 | this->array.spare_disks++; | |
86e3692b | 7968 | } |
4f5bc454 DW |
7969 | |
7970 | info_d->events = __le32_to_cpu(mpb->generation_num); | |
5551b113 | 7971 | info_d->data_offset = pba_of_lba0(map); |
44490938 | 7972 | info_d->component_size = calc_component_size(map, dev); |
06fb291a PB |
7973 | |
7974 | if (map->raid_level == 5) { | |
2432ce9b AP |
7975 | info_d->ppl_sector = this->ppl_sector; |
7976 | info_d->ppl_size = this->ppl_size; | |
98e96bdb AP |
7977 | if (this->consistency_policy == CONSISTENCY_POLICY_PPL && |
7978 | recovery_start == 0) | |
7979 | this->resync_start = 0; | |
06fb291a | 7980 | } |
b12796be | 7981 | |
5e46202e | 7982 | info_d->bb.supported = 1; |
b12796be TM |
7983 | get_volume_badblocks(super->bbm_log, ord_to_idx(ord), |
7984 | info_d->data_offset, | |
7985 | info_d->component_size, | |
7986 | &info_d->bb); | |
4f5bc454 | 7987 | } |
1e5c6983 | 7988 | /* now that the disk list is up-to-date fixup recovery_start */ |
c47b0ff6 | 7989 | update_recovery_start(super, dev, this); |
abef11a3 | 7990 | this->array.spare_disks += spare_disks; |
276d77db AK |
7991 | |
7992 | /* check for reshape */ | |
7993 | if (this->reshape_active == 1) | |
7994 | recover_backup_imsm(st, this); | |
9a1608e5 | 7995 | rest = this; |
4f5bc454 DW |
7996 | } |
7997 | ||
b6180160 | 7998 | super->current_vol = current_vol; |
4f5bc454 | 7999 | return rest; |
cdddbdbc DW |
8000 | } |
8001 | ||
3b451610 AK |
8002 | static __u8 imsm_check_degraded(struct intel_super *super, struct imsm_dev *dev, |
8003 | int failed, int look_in_map) | |
c2a1e7da | 8004 | { |
3b451610 AK |
8005 | struct imsm_map *map; |
8006 | ||
8007 | map = get_imsm_map(dev, look_in_map); | |
c2a1e7da DW |
8008 | |
8009 | if (!failed) | |
1011e834 | 8010 | return map->map_state == IMSM_T_STATE_UNINITIALIZED ? |
3393c6af | 8011 | IMSM_T_STATE_UNINITIALIZED : IMSM_T_STATE_NORMAL; |
c2a1e7da DW |
8012 | |
8013 | switch (get_imsm_raid_level(map)) { | |
8014 | case 0: | |
8015 | return IMSM_T_STATE_FAILED; | |
8016 | break; | |
8017 | case 1: | |
8018 | if (failed < map->num_members) | |
8019 | return IMSM_T_STATE_DEGRADED; | |
8020 | else | |
8021 | return IMSM_T_STATE_FAILED; | |
8022 | break; | |
8023 | case 10: | |
8024 | { | |
8025 | /** | |
c92a2527 DW |
8026 | * check to see if any mirrors have failed, otherwise we |
8027 | * are degraded. Even numbered slots are mirrored on | |
8028 | * slot+1 | |
c2a1e7da | 8029 | */ |
c2a1e7da | 8030 | int i; |
d9b420a5 N |
8031 | /* gcc -Os complains that this is unused */ |
8032 | int insync = insync; | |
c2a1e7da DW |
8033 | |
8034 | for (i = 0; i < map->num_members; i++) { | |
238c0a71 | 8035 | __u32 ord = get_imsm_ord_tbl_ent(dev, i, MAP_X); |
c92a2527 DW |
8036 | int idx = ord_to_idx(ord); |
8037 | struct imsm_disk *disk; | |
c2a1e7da | 8038 | |
c92a2527 | 8039 | /* reset the potential in-sync count on even-numbered |
1011e834 | 8040 | * slots. num_copies is always 2 for imsm raid10 |
c92a2527 DW |
8041 | */ |
8042 | if ((i & 1) == 0) | |
8043 | insync = 2; | |
c2a1e7da | 8044 | |
c92a2527 | 8045 | disk = get_imsm_disk(super, idx); |
25ed7e59 | 8046 | if (!disk || is_failed(disk) || ord & IMSM_ORD_REBUILD) |
c92a2527 | 8047 | insync--; |
c2a1e7da | 8048 | |
c92a2527 DW |
8049 | /* no in-sync disks left in this mirror the |
8050 | * array has failed | |
8051 | */ | |
8052 | if (insync == 0) | |
8053 | return IMSM_T_STATE_FAILED; | |
c2a1e7da DW |
8054 | } |
8055 | ||
8056 | return IMSM_T_STATE_DEGRADED; | |
8057 | } | |
8058 | case 5: | |
8059 | if (failed < 2) | |
8060 | return IMSM_T_STATE_DEGRADED; | |
8061 | else | |
8062 | return IMSM_T_STATE_FAILED; | |
8063 | break; | |
8064 | default: | |
8065 | break; | |
8066 | } | |
8067 | ||
8068 | return map->map_state; | |
8069 | } | |
8070 | ||
3b451610 AK |
8071 | static int imsm_count_failed(struct intel_super *super, struct imsm_dev *dev, |
8072 | int look_in_map) | |
c2a1e7da DW |
8073 | { |
8074 | int i; | |
8075 | int failed = 0; | |
8076 | struct imsm_disk *disk; | |
d5985138 AK |
8077 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
8078 | struct imsm_map *prev = get_imsm_map(dev, MAP_1); | |
68fe4598 | 8079 | struct imsm_map *map_for_loop; |
0556e1a2 DW |
8080 | __u32 ord; |
8081 | int idx; | |
d5985138 | 8082 | int idx_1; |
c2a1e7da | 8083 | |
0556e1a2 DW |
8084 | /* at the beginning of migration we set IMSM_ORD_REBUILD on |
8085 | * disks that are being rebuilt. New failures are recorded to | |
8086 | * map[0]. So we look through all the disks we started with and | |
8087 | * see if any failures are still present, or if any new ones | |
8088 | * have arrived | |
0556e1a2 | 8089 | */ |
d5985138 AK |
8090 | map_for_loop = map; |
8091 | if (prev && (map->num_members < prev->num_members)) | |
8092 | map_for_loop = prev; | |
68fe4598 LD |
8093 | |
8094 | for (i = 0; i < map_for_loop->num_members; i++) { | |
d5985138 | 8095 | idx_1 = -255; |
238c0a71 AK |
8096 | /* when MAP_X is passed both maps failures are counted |
8097 | */ | |
d5985138 | 8098 | if (prev && |
089f9d79 JS |
8099 | (look_in_map == MAP_1 || look_in_map == MAP_X) && |
8100 | i < prev->num_members) { | |
d5985138 AK |
8101 | ord = __le32_to_cpu(prev->disk_ord_tbl[i]); |
8102 | idx_1 = ord_to_idx(ord); | |
c2a1e7da | 8103 | |
d5985138 AK |
8104 | disk = get_imsm_disk(super, idx_1); |
8105 | if (!disk || is_failed(disk) || ord & IMSM_ORD_REBUILD) | |
8106 | failed++; | |
8107 | } | |
089f9d79 JS |
8108 | if ((look_in_map == MAP_0 || look_in_map == MAP_X) && |
8109 | i < map->num_members) { | |
d5985138 AK |
8110 | ord = __le32_to_cpu(map->disk_ord_tbl[i]); |
8111 | idx = ord_to_idx(ord); | |
8112 | ||
8113 | if (idx != idx_1) { | |
8114 | disk = get_imsm_disk(super, idx); | |
8115 | if (!disk || is_failed(disk) || | |
8116 | ord & IMSM_ORD_REBUILD) | |
8117 | failed++; | |
8118 | } | |
8119 | } | |
c2a1e7da DW |
8120 | } |
8121 | ||
8122 | return failed; | |
845dea95 NB |
8123 | } |
8124 | ||
97b4d0e9 DW |
8125 | static int imsm_open_new(struct supertype *c, struct active_array *a, |
8126 | char *inst) | |
8127 | { | |
8128 | struct intel_super *super = c->sb; | |
8129 | struct imsm_super *mpb = super->anchor; | |
bbab0940 | 8130 | struct imsm_update_prealloc_bb_mem u; |
9587c373 | 8131 | |
97b4d0e9 | 8132 | if (atoi(inst) >= mpb->num_raid_devs) { |
1ade5cc1 | 8133 | pr_err("subarry index %d, out of range\n", atoi(inst)); |
97b4d0e9 DW |
8134 | return -ENODEV; |
8135 | } | |
8136 | ||
8137 | dprintf("imsm: open_new %s\n", inst); | |
8138 | a->info.container_member = atoi(inst); | |
bbab0940 TM |
8139 | |
8140 | u.type = update_prealloc_badblocks_mem; | |
8141 | imsm_update_metadata_locally(c, &u, sizeof(u)); | |
8142 | ||
97b4d0e9 DW |
8143 | return 0; |
8144 | } | |
8145 | ||
0c046afd DW |
8146 | static int is_resyncing(struct imsm_dev *dev) |
8147 | { | |
8148 | struct imsm_map *migr_map; | |
8149 | ||
8150 | if (!dev->vol.migr_state) | |
8151 | return 0; | |
8152 | ||
1484e727 DW |
8153 | if (migr_type(dev) == MIGR_INIT || |
8154 | migr_type(dev) == MIGR_REPAIR) | |
0c046afd DW |
8155 | return 1; |
8156 | ||
4c9bc37b AK |
8157 | if (migr_type(dev) == MIGR_GEN_MIGR) |
8158 | return 0; | |
8159 | ||
238c0a71 | 8160 | migr_map = get_imsm_map(dev, MAP_1); |
0c046afd | 8161 | |
089f9d79 JS |
8162 | if (migr_map->map_state == IMSM_T_STATE_NORMAL && |
8163 | dev->vol.migr_type != MIGR_GEN_MIGR) | |
0c046afd DW |
8164 | return 1; |
8165 | else | |
8166 | return 0; | |
8167 | } | |
8168 | ||
0556e1a2 | 8169 | /* return true if we recorded new information */ |
4c9e8c1e TM |
8170 | static int mark_failure(struct intel_super *super, |
8171 | struct imsm_dev *dev, struct imsm_disk *disk, int idx) | |
47ee5a45 | 8172 | { |
0556e1a2 DW |
8173 | __u32 ord; |
8174 | int slot; | |
8175 | struct imsm_map *map; | |
86c54047 DW |
8176 | char buf[MAX_RAID_SERIAL_LEN+3]; |
8177 | unsigned int len, shift = 0; | |
0556e1a2 DW |
8178 | |
8179 | /* new failures are always set in map[0] */ | |
238c0a71 | 8180 | map = get_imsm_map(dev, MAP_0); |
0556e1a2 DW |
8181 | |
8182 | slot = get_imsm_disk_slot(map, idx); | |
8183 | if (slot < 0) | |
8184 | return 0; | |
8185 | ||
8186 | ord = __le32_to_cpu(map->disk_ord_tbl[slot]); | |
25ed7e59 | 8187 | if (is_failed(disk) && (ord & IMSM_ORD_REBUILD)) |
0556e1a2 DW |
8188 | return 0; |
8189 | ||
7d0c5e24 LD |
8190 | memcpy(buf, disk->serial, MAX_RAID_SERIAL_LEN); |
8191 | buf[MAX_RAID_SERIAL_LEN] = '\000'; | |
8192 | strcat(buf, ":0"); | |
86c54047 DW |
8193 | if ((len = strlen(buf)) >= MAX_RAID_SERIAL_LEN) |
8194 | shift = len - MAX_RAID_SERIAL_LEN + 1; | |
167d8bb8 | 8195 | memcpy(disk->serial, &buf[shift], len + 1 - shift); |
86c54047 | 8196 | |
f2f27e63 | 8197 | disk->status |= FAILED_DISK; |
0556e1a2 | 8198 | set_imsm_ord_tbl_ent(map, slot, idx | IMSM_ORD_REBUILD); |
17788994 AK |
8199 | /* mark failures in second map if second map exists and this disk |
8200 | * in this slot. | |
8201 | * This is valid for migration, initialization and rebuild | |
8202 | */ | |
8203 | if (dev->vol.migr_state) { | |
238c0a71 | 8204 | struct imsm_map *map2 = get_imsm_map(dev, MAP_1); |
0a108d63 AK |
8205 | int slot2 = get_imsm_disk_slot(map2, idx); |
8206 | ||
089f9d79 | 8207 | if (slot2 < map2->num_members && slot2 >= 0) |
0a108d63 | 8208 | set_imsm_ord_tbl_ent(map2, slot2, |
1ace8403 AK |
8209 | idx | IMSM_ORD_REBUILD); |
8210 | } | |
d7a1fda2 MT |
8211 | if (map->failed_disk_num == 0xff || |
8212 | (!is_rebuilding(dev) && map->failed_disk_num > slot)) | |
0556e1a2 | 8213 | map->failed_disk_num = slot; |
4c9e8c1e TM |
8214 | |
8215 | clear_disk_badblocks(super->bbm_log, ord_to_idx(ord)); | |
8216 | ||
0556e1a2 DW |
8217 | return 1; |
8218 | } | |
8219 | ||
4c9e8c1e TM |
8220 | static void mark_missing(struct intel_super *super, |
8221 | struct imsm_dev *dev, struct imsm_disk *disk, int idx) | |
0556e1a2 | 8222 | { |
4c9e8c1e | 8223 | mark_failure(super, dev, disk, idx); |
0556e1a2 DW |
8224 | |
8225 | if (disk->scsi_id == __cpu_to_le32(~(__u32)0)) | |
8226 | return; | |
8227 | ||
47ee5a45 DW |
8228 | disk->scsi_id = __cpu_to_le32(~(__u32)0); |
8229 | memmove(&disk->serial[0], &disk->serial[1], MAX_RAID_SERIAL_LEN - 1); | |
8230 | } | |
8231 | ||
33414a01 DW |
8232 | static void handle_missing(struct intel_super *super, struct imsm_dev *dev) |
8233 | { | |
33414a01 | 8234 | struct dl *dl; |
33414a01 DW |
8235 | |
8236 | if (!super->missing) | |
8237 | return; | |
33414a01 | 8238 | |
79b68f1b PC |
8239 | /* When orom adds replacement for missing disk it does |
8240 | * not remove entry of missing disk, but just updates map with | |
8241 | * new added disk. So it is not enough just to test if there is | |
8242 | * any missing disk, we have to look if there are any failed disks | |
8243 | * in map to stop migration */ | |
8244 | ||
33414a01 | 8245 | dprintf("imsm: mark missing\n"); |
3d59f0c0 AK |
8246 | /* end process for initialization and rebuild only |
8247 | */ | |
8248 | if (is_gen_migration(dev) == 0) { | |
fb12a745 | 8249 | int failed = imsm_count_failed(super, dev, MAP_0); |
3d59f0c0 | 8250 | |
fb12a745 TM |
8251 | if (failed) { |
8252 | __u8 map_state; | |
8253 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
8254 | struct imsm_map *map1; | |
8255 | int i, ord, ord_map1; | |
8256 | int rebuilt = 1; | |
3d59f0c0 | 8257 | |
fb12a745 TM |
8258 | for (i = 0; i < map->num_members; i++) { |
8259 | ord = get_imsm_ord_tbl_ent(dev, i, MAP_0); | |
8260 | if (!(ord & IMSM_ORD_REBUILD)) | |
8261 | continue; | |
8262 | ||
8263 | map1 = get_imsm_map(dev, MAP_1); | |
8264 | if (!map1) | |
8265 | continue; | |
8266 | ||
8267 | ord_map1 = __le32_to_cpu(map1->disk_ord_tbl[i]); | |
8268 | if (ord_map1 & IMSM_ORD_REBUILD) | |
8269 | rebuilt = 0; | |
8270 | } | |
8271 | ||
8272 | if (rebuilt) { | |
8273 | map_state = imsm_check_degraded(super, dev, | |
8274 | failed, MAP_0); | |
8275 | end_migration(dev, super, map_state); | |
8276 | } | |
8277 | } | |
3d59f0c0 | 8278 | } |
33414a01 | 8279 | for (dl = super->missing; dl; dl = dl->next) |
4c9e8c1e | 8280 | mark_missing(super, dev, &dl->disk, dl->index); |
33414a01 DW |
8281 | super->updates_pending++; |
8282 | } | |
8283 | ||
f3871fdc AK |
8284 | static unsigned long long imsm_set_array_size(struct imsm_dev *dev, |
8285 | long long new_size) | |
70bdf0dc | 8286 | { |
70bdf0dc | 8287 | unsigned long long array_blocks; |
9529d343 MD |
8288 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
8289 | int used_disks = imsm_num_data_members(map); | |
70bdf0dc AK |
8290 | |
8291 | if (used_disks == 0) { | |
8292 | /* when problems occures | |
8293 | * return current array_blocks value | |
8294 | */ | |
fcc2c9da | 8295 | array_blocks = imsm_dev_size(dev); |
70bdf0dc AK |
8296 | |
8297 | return array_blocks; | |
8298 | } | |
8299 | ||
8300 | /* set array size in metadata | |
8301 | */ | |
9529d343 | 8302 | if (new_size <= 0) |
f3871fdc AK |
8303 | /* OLCE size change is caused by added disks |
8304 | */ | |
44490938 | 8305 | array_blocks = per_dev_array_size(map) * used_disks; |
9529d343 | 8306 | else |
f3871fdc AK |
8307 | /* Online Volume Size Change |
8308 | * Using available free space | |
8309 | */ | |
8310 | array_blocks = new_size; | |
70bdf0dc | 8311 | |
b53bfba6 | 8312 | array_blocks = round_size_to_mb(array_blocks, used_disks); |
fcc2c9da | 8313 | set_imsm_dev_size(dev, array_blocks); |
70bdf0dc AK |
8314 | |
8315 | return array_blocks; | |
8316 | } | |
8317 | ||
28bce06f AK |
8318 | static void imsm_set_disk(struct active_array *a, int n, int state); |
8319 | ||
0e2d1a4e AK |
8320 | static void imsm_progress_container_reshape(struct intel_super *super) |
8321 | { | |
8322 | /* if no device has a migr_state, but some device has a | |
8323 | * different number of members than the previous device, start | |
8324 | * changing the number of devices in this device to match | |
8325 | * previous. | |
8326 | */ | |
8327 | struct imsm_super *mpb = super->anchor; | |
8328 | int prev_disks = -1; | |
8329 | int i; | |
1dfaa380 | 8330 | int copy_map_size; |
0e2d1a4e AK |
8331 | |
8332 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
8333 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
238c0a71 | 8334 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
0e2d1a4e AK |
8335 | struct imsm_map *map2; |
8336 | int prev_num_members; | |
0e2d1a4e AK |
8337 | |
8338 | if (dev->vol.migr_state) | |
8339 | return; | |
8340 | ||
8341 | if (prev_disks == -1) | |
8342 | prev_disks = map->num_members; | |
8343 | if (prev_disks == map->num_members) | |
8344 | continue; | |
8345 | ||
8346 | /* OK, this array needs to enter reshape mode. | |
8347 | * i.e it needs a migr_state | |
8348 | */ | |
8349 | ||
1dfaa380 | 8350 | copy_map_size = sizeof_imsm_map(map); |
0e2d1a4e AK |
8351 | prev_num_members = map->num_members; |
8352 | map->num_members = prev_disks; | |
8353 | dev->vol.migr_state = 1; | |
8354 | dev->vol.curr_migr_unit = 0; | |
ea672ee1 | 8355 | set_migr_type(dev, MIGR_GEN_MIGR); |
0e2d1a4e AK |
8356 | for (i = prev_num_members; |
8357 | i < map->num_members; i++) | |
8358 | set_imsm_ord_tbl_ent(map, i, i); | |
238c0a71 | 8359 | map2 = get_imsm_map(dev, MAP_1); |
0e2d1a4e | 8360 | /* Copy the current map */ |
1dfaa380 | 8361 | memcpy(map2, map, copy_map_size); |
0e2d1a4e AK |
8362 | map2->num_members = prev_num_members; |
8363 | ||
f3871fdc | 8364 | imsm_set_array_size(dev, -1); |
51d83f5d | 8365 | super->clean_migration_record_by_mdmon = 1; |
0e2d1a4e AK |
8366 | super->updates_pending++; |
8367 | } | |
8368 | } | |
8369 | ||
aad6f216 | 8370 | /* Handle dirty -> clean transititions, resync and reshape. Degraded and rebuild |
0c046afd DW |
8371 | * states are handled in imsm_set_disk() with one exception, when a |
8372 | * resync is stopped due to a new failure this routine will set the | |
8373 | * 'degraded' state for the array. | |
8374 | */ | |
01f157d7 | 8375 | static int imsm_set_array_state(struct active_array *a, int consistent) |
a862209d DW |
8376 | { |
8377 | int inst = a->info.container_member; | |
8378 | struct intel_super *super = a->container->sb; | |
949c47a0 | 8379 | struct imsm_dev *dev = get_imsm_dev(super, inst); |
238c0a71 | 8380 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
3b451610 AK |
8381 | int failed = imsm_count_failed(super, dev, MAP_0); |
8382 | __u8 map_state = imsm_check_degraded(super, dev, failed, MAP_0); | |
1e5c6983 | 8383 | __u32 blocks_per_unit; |
a862209d | 8384 | |
1af97990 AK |
8385 | if (dev->vol.migr_state && |
8386 | dev->vol.migr_type == MIGR_GEN_MIGR) { | |
8387 | /* array state change is blocked due to reshape action | |
aad6f216 N |
8388 | * We might need to |
8389 | * - abort the reshape (if last_checkpoint is 0 and action!= reshape) | |
8390 | * - finish the reshape (if last_checkpoint is big and action != reshape) | |
8391 | * - update curr_migr_unit | |
1af97990 | 8392 | */ |
aad6f216 N |
8393 | if (a->curr_action == reshape) { |
8394 | /* still reshaping, maybe update curr_migr_unit */ | |
633b5610 | 8395 | goto mark_checkpoint; |
aad6f216 N |
8396 | } else { |
8397 | if (a->last_checkpoint == 0 && a->prev_action == reshape) { | |
8398 | /* for some reason we aborted the reshape. | |
b66e591b AK |
8399 | * |
8400 | * disable automatic metadata rollback | |
8401 | * user action is required to recover process | |
aad6f216 | 8402 | */ |
b66e591b | 8403 | if (0) { |
238c0a71 AK |
8404 | struct imsm_map *map2 = |
8405 | get_imsm_map(dev, MAP_1); | |
8406 | dev->vol.migr_state = 0; | |
8407 | set_migr_type(dev, 0); | |
8408 | dev->vol.curr_migr_unit = 0; | |
8409 | memcpy(map, map2, | |
8410 | sizeof_imsm_map(map2)); | |
8411 | super->updates_pending++; | |
b66e591b | 8412 | } |
aad6f216 N |
8413 | } |
8414 | if (a->last_checkpoint >= a->info.component_size) { | |
8415 | unsigned long long array_blocks; | |
8416 | int used_disks; | |
e154ced3 | 8417 | struct mdinfo *mdi; |
aad6f216 | 8418 | |
9529d343 | 8419 | used_disks = imsm_num_data_members(map); |
d55adef9 AK |
8420 | if (used_disks > 0) { |
8421 | array_blocks = | |
44490938 | 8422 | per_dev_array_size(map) * |
d55adef9 | 8423 | used_disks; |
b53bfba6 TM |
8424 | array_blocks = |
8425 | round_size_to_mb(array_blocks, | |
8426 | used_disks); | |
d55adef9 AK |
8427 | a->info.custom_array_size = array_blocks; |
8428 | /* encourage manager to update array | |
8429 | * size | |
8430 | */ | |
e154ced3 | 8431 | |
d55adef9 | 8432 | a->check_reshape = 1; |
633b5610 | 8433 | } |
e154ced3 AK |
8434 | /* finalize online capacity expansion/reshape */ |
8435 | for (mdi = a->info.devs; mdi; mdi = mdi->next) | |
8436 | imsm_set_disk(a, | |
8437 | mdi->disk.raid_disk, | |
8438 | mdi->curr_state); | |
8439 | ||
0e2d1a4e | 8440 | imsm_progress_container_reshape(super); |
e154ced3 | 8441 | } |
aad6f216 | 8442 | } |
1af97990 AK |
8443 | } |
8444 | ||
47ee5a45 | 8445 | /* before we activate this array handle any missing disks */ |
33414a01 DW |
8446 | if (consistent == 2) |
8447 | handle_missing(super, dev); | |
1e5c6983 | 8448 | |
0c046afd | 8449 | if (consistent == 2 && |
b7941fd6 | 8450 | (!is_resync_complete(&a->info) || |
0c046afd DW |
8451 | map_state != IMSM_T_STATE_NORMAL || |
8452 | dev->vol.migr_state)) | |
01f157d7 | 8453 | consistent = 0; |
272906ef | 8454 | |
b7941fd6 | 8455 | if (is_resync_complete(&a->info)) { |
0c046afd | 8456 | /* complete intialization / resync, |
0556e1a2 DW |
8457 | * recovery and interrupted recovery is completed in |
8458 | * ->set_disk | |
0c046afd DW |
8459 | */ |
8460 | if (is_resyncing(dev)) { | |
8461 | dprintf("imsm: mark resync done\n"); | |
809da78e | 8462 | end_migration(dev, super, map_state); |
115c3803 | 8463 | super->updates_pending++; |
484240d8 | 8464 | a->last_checkpoint = 0; |
115c3803 | 8465 | } |
b9172665 AK |
8466 | } else if ((!is_resyncing(dev) && !failed) && |
8467 | (imsm_reshape_blocks_arrays_changes(super) == 0)) { | |
0c046afd | 8468 | /* mark the start of the init process if nothing is failed */ |
b7941fd6 | 8469 | dprintf("imsm: mark resync start\n"); |
1484e727 | 8470 | if (map->map_state == IMSM_T_STATE_UNINITIALIZED) |
8e59f3d8 | 8471 | migrate(dev, super, IMSM_T_STATE_NORMAL, MIGR_INIT); |
1484e727 | 8472 | else |
8e59f3d8 | 8473 | migrate(dev, super, IMSM_T_STATE_NORMAL, MIGR_REPAIR); |
3393c6af | 8474 | super->updates_pending++; |
115c3803 | 8475 | } |
a862209d | 8476 | |
633b5610 | 8477 | mark_checkpoint: |
5b83bacf AK |
8478 | /* skip checkpointing for general migration, |
8479 | * it is controlled in mdadm | |
8480 | */ | |
8481 | if (is_gen_migration(dev)) | |
8482 | goto skip_mark_checkpoint; | |
8483 | ||
1e5c6983 | 8484 | /* check if we can update curr_migr_unit from resync_start, recovery_start */ |
c47b0ff6 | 8485 | blocks_per_unit = blocks_per_migr_unit(super, dev); |
4f0a7acc | 8486 | if (blocks_per_unit) { |
1e5c6983 DW |
8487 | __u32 units32; |
8488 | __u64 units; | |
8489 | ||
4f0a7acc | 8490 | units = a->last_checkpoint / blocks_per_unit; |
1e5c6983 DW |
8491 | units32 = units; |
8492 | ||
8493 | /* check that we did not overflow 32-bits, and that | |
8494 | * curr_migr_unit needs updating | |
8495 | */ | |
8496 | if (units32 == units && | |
bfd80a56 | 8497 | units32 != 0 && |
1e5c6983 DW |
8498 | __le32_to_cpu(dev->vol.curr_migr_unit) != units32) { |
8499 | dprintf("imsm: mark checkpoint (%u)\n", units32); | |
8500 | dev->vol.curr_migr_unit = __cpu_to_le32(units32); | |
8501 | super->updates_pending++; | |
8502 | } | |
8503 | } | |
f8f603f1 | 8504 | |
5b83bacf | 8505 | skip_mark_checkpoint: |
3393c6af | 8506 | /* mark dirty / clean */ |
2432ce9b AP |
8507 | if (((dev->vol.dirty & RAIDVOL_DIRTY) && consistent) || |
8508 | (!(dev->vol.dirty & RAIDVOL_DIRTY) && !consistent)) { | |
b7941fd6 | 8509 | dprintf("imsm: mark '%s'\n", consistent ? "clean" : "dirty"); |
2432ce9b AP |
8510 | if (consistent) { |
8511 | dev->vol.dirty = RAIDVOL_CLEAN; | |
8512 | } else { | |
8513 | dev->vol.dirty = RAIDVOL_DIRTY; | |
c2462068 PB |
8514 | if (dev->rwh_policy == RWH_DISTRIBUTED || |
8515 | dev->rwh_policy == RWH_MULTIPLE_DISTRIBUTED) | |
2432ce9b AP |
8516 | dev->vol.dirty |= RAIDVOL_DSRECORD_VALID; |
8517 | } | |
a862209d DW |
8518 | super->updates_pending++; |
8519 | } | |
28bce06f | 8520 | |
01f157d7 | 8521 | return consistent; |
a862209d DW |
8522 | } |
8523 | ||
6f50473f TM |
8524 | static int imsm_disk_slot_to_ord(struct active_array *a, int slot) |
8525 | { | |
8526 | int inst = a->info.container_member; | |
8527 | struct intel_super *super = a->container->sb; | |
8528 | struct imsm_dev *dev = get_imsm_dev(super, inst); | |
8529 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
8530 | ||
8531 | if (slot > map->num_members) { | |
8532 | pr_err("imsm: imsm_disk_slot_to_ord %d out of range 0..%d\n", | |
8533 | slot, map->num_members - 1); | |
8534 | return -1; | |
8535 | } | |
8536 | ||
8537 | if (slot < 0) | |
8538 | return -1; | |
8539 | ||
8540 | return get_imsm_ord_tbl_ent(dev, slot, MAP_0); | |
8541 | } | |
8542 | ||
8d45d196 | 8543 | static void imsm_set_disk(struct active_array *a, int n, int state) |
845dea95 | 8544 | { |
8d45d196 DW |
8545 | int inst = a->info.container_member; |
8546 | struct intel_super *super = a->container->sb; | |
949c47a0 | 8547 | struct imsm_dev *dev = get_imsm_dev(super, inst); |
238c0a71 | 8548 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
8d45d196 | 8549 | struct imsm_disk *disk; |
7ce05701 LD |
8550 | struct mdinfo *mdi; |
8551 | int recovery_not_finished = 0; | |
0c046afd | 8552 | int failed; |
6f50473f | 8553 | int ord; |
0c046afd | 8554 | __u8 map_state; |
fb12a745 TM |
8555 | int rebuild_done = 0; |
8556 | int i; | |
8d45d196 | 8557 | |
fb12a745 | 8558 | ord = get_imsm_ord_tbl_ent(dev, n, MAP_X); |
6f50473f | 8559 | if (ord < 0) |
8d45d196 DW |
8560 | return; |
8561 | ||
4e6e574a | 8562 | dprintf("imsm: set_disk %d:%x\n", n, state); |
b10b37b8 | 8563 | disk = get_imsm_disk(super, ord_to_idx(ord)); |
8d45d196 | 8564 | |
5802a811 | 8565 | /* check for new failures */ |
ae7d61e3 | 8566 | if (disk && (state & DS_FAULTY)) { |
4c9e8c1e | 8567 | if (mark_failure(super, dev, disk, ord_to_idx(ord))) |
0556e1a2 | 8568 | super->updates_pending++; |
8d45d196 | 8569 | } |
47ee5a45 | 8570 | |
19859edc | 8571 | /* check if in_sync */ |
0556e1a2 | 8572 | if (state & DS_INSYNC && ord & IMSM_ORD_REBUILD && is_rebuilding(dev)) { |
238c0a71 | 8573 | struct imsm_map *migr_map = get_imsm_map(dev, MAP_1); |
b10b37b8 DW |
8574 | |
8575 | set_imsm_ord_tbl_ent(migr_map, n, ord_to_idx(ord)); | |
fb12a745 | 8576 | rebuild_done = 1; |
19859edc DW |
8577 | super->updates_pending++; |
8578 | } | |
8d45d196 | 8579 | |
3b451610 AK |
8580 | failed = imsm_count_failed(super, dev, MAP_0); |
8581 | map_state = imsm_check_degraded(super, dev, failed, MAP_0); | |
5802a811 | 8582 | |
0c046afd | 8583 | /* check if recovery complete, newly degraded, or failed */ |
94002678 AK |
8584 | dprintf("imsm: Detected transition to state "); |
8585 | switch (map_state) { | |
8586 | case IMSM_T_STATE_NORMAL: /* transition to normal state */ | |
8587 | dprintf("normal: "); | |
8588 | if (is_rebuilding(dev)) { | |
1ade5cc1 | 8589 | dprintf_cont("while rebuilding"); |
7ce05701 LD |
8590 | /* check if recovery is really finished */ |
8591 | for (mdi = a->info.devs; mdi ; mdi = mdi->next) | |
8592 | if (mdi->recovery_start != MaxSector) { | |
8593 | recovery_not_finished = 1; | |
8594 | break; | |
8595 | } | |
8596 | if (recovery_not_finished) { | |
1ade5cc1 N |
8597 | dprintf_cont("\n"); |
8598 | dprintf("Rebuild has not finished yet, state not changed"); | |
7ce05701 LD |
8599 | if (a->last_checkpoint < mdi->recovery_start) { |
8600 | a->last_checkpoint = mdi->recovery_start; | |
8601 | super->updates_pending++; | |
8602 | } | |
8603 | break; | |
8604 | } | |
94002678 | 8605 | end_migration(dev, super, map_state); |
238c0a71 | 8606 | map = get_imsm_map(dev, MAP_0); |
94002678 AK |
8607 | map->failed_disk_num = ~0; |
8608 | super->updates_pending++; | |
8609 | a->last_checkpoint = 0; | |
8610 | break; | |
8611 | } | |
8612 | if (is_gen_migration(dev)) { | |
1ade5cc1 | 8613 | dprintf_cont("while general migration"); |
bf2f0071 | 8614 | if (a->last_checkpoint >= a->info.component_size) |
809da78e | 8615 | end_migration(dev, super, map_state); |
94002678 AK |
8616 | else |
8617 | map->map_state = map_state; | |
238c0a71 | 8618 | map = get_imsm_map(dev, MAP_0); |
28bce06f | 8619 | map->failed_disk_num = ~0; |
94002678 | 8620 | super->updates_pending++; |
bf2f0071 | 8621 | break; |
94002678 AK |
8622 | } |
8623 | break; | |
8624 | case IMSM_T_STATE_DEGRADED: /* transition to degraded state */ | |
1ade5cc1 | 8625 | dprintf_cont("degraded: "); |
089f9d79 | 8626 | if (map->map_state != map_state && !dev->vol.migr_state) { |
1ade5cc1 | 8627 | dprintf_cont("mark degraded"); |
94002678 AK |
8628 | map->map_state = map_state; |
8629 | super->updates_pending++; | |
8630 | a->last_checkpoint = 0; | |
8631 | break; | |
8632 | } | |
8633 | if (is_rebuilding(dev)) { | |
d7a1fda2 | 8634 | dprintf_cont("while rebuilding "); |
a4e96fd8 MT |
8635 | if (state & DS_FAULTY) { |
8636 | dprintf_cont("removing failed drive "); | |
d7a1fda2 MT |
8637 | if (n == map->failed_disk_num) { |
8638 | dprintf_cont("end migration"); | |
8639 | end_migration(dev, super, map_state); | |
a4e96fd8 | 8640 | a->last_checkpoint = 0; |
d7a1fda2 | 8641 | } else { |
a4e96fd8 | 8642 | dprintf_cont("fail detected during rebuild, changing map state"); |
d7a1fda2 MT |
8643 | map->map_state = map_state; |
8644 | } | |
94002678 | 8645 | super->updates_pending++; |
fb12a745 TM |
8646 | } |
8647 | ||
a4e96fd8 MT |
8648 | if (!rebuild_done) |
8649 | break; | |
8650 | ||
fb12a745 TM |
8651 | /* check if recovery is really finished */ |
8652 | for (mdi = a->info.devs; mdi ; mdi = mdi->next) | |
8653 | if (mdi->recovery_start != MaxSector) { | |
8654 | recovery_not_finished = 1; | |
8655 | break; | |
8656 | } | |
8657 | if (recovery_not_finished) { | |
8658 | dprintf_cont("\n"); | |
a4e96fd8 | 8659 | dprintf_cont("Rebuild has not finished yet"); |
fb12a745 TM |
8660 | if (a->last_checkpoint < mdi->recovery_start) { |
8661 | a->last_checkpoint = | |
8662 | mdi->recovery_start; | |
8663 | super->updates_pending++; | |
8664 | } | |
8665 | break; | |
94002678 | 8666 | } |
fb12a745 TM |
8667 | |
8668 | dprintf_cont(" Rebuild done, still degraded"); | |
a4e96fd8 MT |
8669 | end_migration(dev, super, map_state); |
8670 | a->last_checkpoint = 0; | |
8671 | super->updates_pending++; | |
fb12a745 TM |
8672 | |
8673 | for (i = 0; i < map->num_members; i++) { | |
8674 | int idx = get_imsm_ord_tbl_ent(dev, i, MAP_0); | |
8675 | ||
8676 | if (idx & IMSM_ORD_REBUILD) | |
8677 | map->failed_disk_num = i; | |
8678 | } | |
8679 | super->updates_pending++; | |
94002678 AK |
8680 | break; |
8681 | } | |
8682 | if (is_gen_migration(dev)) { | |
1ade5cc1 | 8683 | dprintf_cont("while general migration"); |
bf2f0071 | 8684 | if (a->last_checkpoint >= a->info.component_size) |
809da78e | 8685 | end_migration(dev, super, map_state); |
94002678 AK |
8686 | else { |
8687 | map->map_state = map_state; | |
3b451610 | 8688 | manage_second_map(super, dev); |
94002678 AK |
8689 | } |
8690 | super->updates_pending++; | |
bf2f0071 | 8691 | break; |
28bce06f | 8692 | } |
6ce1fbf1 | 8693 | if (is_initializing(dev)) { |
1ade5cc1 | 8694 | dprintf_cont("while initialization."); |
6ce1fbf1 AK |
8695 | map->map_state = map_state; |
8696 | super->updates_pending++; | |
8697 | break; | |
8698 | } | |
94002678 AK |
8699 | break; |
8700 | case IMSM_T_STATE_FAILED: /* transition to failed state */ | |
1ade5cc1 | 8701 | dprintf_cont("failed: "); |
94002678 | 8702 | if (is_gen_migration(dev)) { |
1ade5cc1 | 8703 | dprintf_cont("while general migration"); |
94002678 AK |
8704 | map->map_state = map_state; |
8705 | super->updates_pending++; | |
8706 | break; | |
8707 | } | |
8708 | if (map->map_state != map_state) { | |
1ade5cc1 | 8709 | dprintf_cont("mark failed"); |
94002678 AK |
8710 | end_migration(dev, super, map_state); |
8711 | super->updates_pending++; | |
8712 | a->last_checkpoint = 0; | |
8713 | break; | |
8714 | } | |
8715 | break; | |
8716 | default: | |
1ade5cc1 | 8717 | dprintf_cont("state %i\n", map_state); |
5802a811 | 8718 | } |
1ade5cc1 | 8719 | dprintf_cont("\n"); |
845dea95 NB |
8720 | } |
8721 | ||
f796af5d | 8722 | static int store_imsm_mpb(int fd, struct imsm_super *mpb) |
c2a1e7da | 8723 | { |
f796af5d | 8724 | void *buf = mpb; |
c2a1e7da DW |
8725 | __u32 mpb_size = __le32_to_cpu(mpb->mpb_size); |
8726 | unsigned long long dsize; | |
8727 | unsigned long long sectors; | |
f36a9ecd | 8728 | unsigned int sector_size; |
c2a1e7da | 8729 | |
f36a9ecd | 8730 | get_dev_sector_size(fd, NULL, §or_size); |
c2a1e7da DW |
8731 | get_dev_size(fd, NULL, &dsize); |
8732 | ||
f36a9ecd | 8733 | if (mpb_size > sector_size) { |
272f648f | 8734 | /* -1 to account for anchor */ |
f36a9ecd | 8735 | sectors = mpb_sectors(mpb, sector_size) - 1; |
c2a1e7da | 8736 | |
272f648f | 8737 | /* write the extended mpb to the sectors preceeding the anchor */ |
f36a9ecd PB |
8738 | if (lseek64(fd, dsize - (sector_size * (2 + sectors)), |
8739 | SEEK_SET) < 0) | |
272f648f | 8740 | return 1; |
c2a1e7da | 8741 | |
f36a9ecd PB |
8742 | if ((unsigned long long)write(fd, buf + sector_size, |
8743 | sector_size * sectors) != sector_size * sectors) | |
272f648f DW |
8744 | return 1; |
8745 | } | |
c2a1e7da | 8746 | |
272f648f | 8747 | /* first block is stored on second to last sector of the disk */ |
f36a9ecd | 8748 | if (lseek64(fd, dsize - (sector_size * 2), SEEK_SET) < 0) |
c2a1e7da DW |
8749 | return 1; |
8750 | ||
466070ad | 8751 | if ((unsigned int)write(fd, buf, sector_size) != sector_size) |
c2a1e7da DW |
8752 | return 1; |
8753 | ||
c2a1e7da DW |
8754 | return 0; |
8755 | } | |
8756 | ||
2e735d19 | 8757 | static void imsm_sync_metadata(struct supertype *container) |
845dea95 | 8758 | { |
2e735d19 | 8759 | struct intel_super *super = container->sb; |
c2a1e7da | 8760 | |
1a64be56 | 8761 | dprintf("sync metadata: %d\n", super->updates_pending); |
c2a1e7da DW |
8762 | if (!super->updates_pending) |
8763 | return; | |
8764 | ||
36988a3d | 8765 | write_super_imsm(container, 0); |
c2a1e7da DW |
8766 | |
8767 | super->updates_pending = 0; | |
845dea95 NB |
8768 | } |
8769 | ||
272906ef DW |
8770 | static struct dl *imsm_readd(struct intel_super *super, int idx, struct active_array *a) |
8771 | { | |
8772 | struct imsm_dev *dev = get_imsm_dev(super, a->info.container_member); | |
238c0a71 | 8773 | int i = get_imsm_disk_idx(dev, idx, MAP_X); |
272906ef DW |
8774 | struct dl *dl; |
8775 | ||
8776 | for (dl = super->disks; dl; dl = dl->next) | |
8777 | if (dl->index == i) | |
8778 | break; | |
8779 | ||
25ed7e59 | 8780 | if (dl && is_failed(&dl->disk)) |
272906ef DW |
8781 | dl = NULL; |
8782 | ||
8783 | if (dl) | |
1ade5cc1 | 8784 | dprintf("found %x:%x\n", dl->major, dl->minor); |
272906ef DW |
8785 | |
8786 | return dl; | |
8787 | } | |
8788 | ||
a20d2ba5 | 8789 | static struct dl *imsm_add_spare(struct intel_super *super, int slot, |
8ba77d32 AK |
8790 | struct active_array *a, int activate_new, |
8791 | struct mdinfo *additional_test_list) | |
272906ef DW |
8792 | { |
8793 | struct imsm_dev *dev = get_imsm_dev(super, a->info.container_member); | |
238c0a71 | 8794 | int idx = get_imsm_disk_idx(dev, slot, MAP_X); |
a20d2ba5 DW |
8795 | struct imsm_super *mpb = super->anchor; |
8796 | struct imsm_map *map; | |
272906ef DW |
8797 | unsigned long long pos; |
8798 | struct mdinfo *d; | |
8799 | struct extent *ex; | |
a20d2ba5 | 8800 | int i, j; |
272906ef | 8801 | int found; |
569cc43f DW |
8802 | __u32 array_start = 0; |
8803 | __u32 array_end = 0; | |
272906ef | 8804 | struct dl *dl; |
6c932028 | 8805 | struct mdinfo *test_list; |
272906ef DW |
8806 | |
8807 | for (dl = super->disks; dl; dl = dl->next) { | |
8808 | /* If in this array, skip */ | |
8809 | for (d = a->info.devs ; d ; d = d->next) | |
e553d2a4 DW |
8810 | if (d->state_fd >= 0 && |
8811 | d->disk.major == dl->major && | |
272906ef | 8812 | d->disk.minor == dl->minor) { |
8ba77d32 AK |
8813 | dprintf("%x:%x already in array\n", |
8814 | dl->major, dl->minor); | |
272906ef DW |
8815 | break; |
8816 | } | |
8817 | if (d) | |
8818 | continue; | |
6c932028 AK |
8819 | test_list = additional_test_list; |
8820 | while (test_list) { | |
8821 | if (test_list->disk.major == dl->major && | |
8822 | test_list->disk.minor == dl->minor) { | |
8ba77d32 AK |
8823 | dprintf("%x:%x already in additional test list\n", |
8824 | dl->major, dl->minor); | |
8825 | break; | |
8826 | } | |
6c932028 | 8827 | test_list = test_list->next; |
8ba77d32 | 8828 | } |
6c932028 | 8829 | if (test_list) |
8ba77d32 | 8830 | continue; |
272906ef | 8831 | |
e553d2a4 | 8832 | /* skip in use or failed drives */ |
25ed7e59 | 8833 | if (is_failed(&dl->disk) || idx == dl->index || |
df474657 DW |
8834 | dl->index == -2) { |
8835 | dprintf("%x:%x status (failed: %d index: %d)\n", | |
25ed7e59 | 8836 | dl->major, dl->minor, is_failed(&dl->disk), idx); |
9a1608e5 DW |
8837 | continue; |
8838 | } | |
8839 | ||
a20d2ba5 DW |
8840 | /* skip pure spares when we are looking for partially |
8841 | * assimilated drives | |
8842 | */ | |
8843 | if (dl->index == -1 && !activate_new) | |
8844 | continue; | |
8845 | ||
f2cc4f7d AO |
8846 | if (!drive_validate_sector_size(super, dl)) |
8847 | continue; | |
8848 | ||
272906ef | 8849 | /* Does this unused device have the requisite free space? |
a20d2ba5 | 8850 | * It needs to be able to cover all member volumes |
272906ef | 8851 | */ |
05501181 | 8852 | ex = get_extents(super, dl, 1); |
272906ef DW |
8853 | if (!ex) { |
8854 | dprintf("cannot get extents\n"); | |
8855 | continue; | |
8856 | } | |
a20d2ba5 DW |
8857 | for (i = 0; i < mpb->num_raid_devs; i++) { |
8858 | dev = get_imsm_dev(super, i); | |
238c0a71 | 8859 | map = get_imsm_map(dev, MAP_0); |
272906ef | 8860 | |
a20d2ba5 DW |
8861 | /* check if this disk is already a member of |
8862 | * this array | |
272906ef | 8863 | */ |
620b1713 | 8864 | if (get_imsm_disk_slot(map, dl->index) >= 0) |
a20d2ba5 DW |
8865 | continue; |
8866 | ||
8867 | found = 0; | |
8868 | j = 0; | |
8869 | pos = 0; | |
5551b113 | 8870 | array_start = pba_of_lba0(map); |
329c8278 | 8871 | array_end = array_start + |
44490938 | 8872 | per_dev_array_size(map) - 1; |
a20d2ba5 DW |
8873 | |
8874 | do { | |
8875 | /* check that we can start at pba_of_lba0 with | |
44490938 | 8876 | * num_data_stripes*blocks_per_stripe of space |
a20d2ba5 | 8877 | */ |
329c8278 | 8878 | if (array_start >= pos && array_end < ex[j].start) { |
a20d2ba5 DW |
8879 | found = 1; |
8880 | break; | |
8881 | } | |
8882 | pos = ex[j].start + ex[j].size; | |
8883 | j++; | |
8884 | } while (ex[j-1].size); | |
8885 | ||
8886 | if (!found) | |
272906ef | 8887 | break; |
a20d2ba5 | 8888 | } |
272906ef DW |
8889 | |
8890 | free(ex); | |
a20d2ba5 | 8891 | if (i < mpb->num_raid_devs) { |
329c8278 DW |
8892 | dprintf("%x:%x does not have %u to %u available\n", |
8893 | dl->major, dl->minor, array_start, array_end); | |
272906ef DW |
8894 | /* No room */ |
8895 | continue; | |
a20d2ba5 DW |
8896 | } |
8897 | return dl; | |
272906ef DW |
8898 | } |
8899 | ||
8900 | return dl; | |
8901 | } | |
8902 | ||
95d07a2c LM |
8903 | static int imsm_rebuild_allowed(struct supertype *cont, int dev_idx, int failed) |
8904 | { | |
8905 | struct imsm_dev *dev2; | |
8906 | struct imsm_map *map; | |
8907 | struct dl *idisk; | |
8908 | int slot; | |
8909 | int idx; | |
8910 | __u8 state; | |
8911 | ||
8912 | dev2 = get_imsm_dev(cont->sb, dev_idx); | |
8913 | if (dev2) { | |
238c0a71 | 8914 | state = imsm_check_degraded(cont->sb, dev2, failed, MAP_0); |
95d07a2c | 8915 | if (state == IMSM_T_STATE_FAILED) { |
238c0a71 | 8916 | map = get_imsm_map(dev2, MAP_0); |
95d07a2c LM |
8917 | if (!map) |
8918 | return 1; | |
8919 | for (slot = 0; slot < map->num_members; slot++) { | |
8920 | /* | |
8921 | * Check if failed disks are deleted from intel | |
8922 | * disk list or are marked to be deleted | |
8923 | */ | |
238c0a71 | 8924 | idx = get_imsm_disk_idx(dev2, slot, MAP_X); |
95d07a2c LM |
8925 | idisk = get_imsm_dl_disk(cont->sb, idx); |
8926 | /* | |
8927 | * Do not rebuild the array if failed disks | |
8928 | * from failed sub-array are not removed from | |
8929 | * container. | |
8930 | */ | |
8931 | if (idisk && | |
8932 | is_failed(&idisk->disk) && | |
8933 | (idisk->action != DISK_REMOVE)) | |
8934 | return 0; | |
8935 | } | |
8936 | } | |
8937 | } | |
8938 | return 1; | |
8939 | } | |
8940 | ||
88758e9d DW |
8941 | static struct mdinfo *imsm_activate_spare(struct active_array *a, |
8942 | struct metadata_update **updates) | |
8943 | { | |
8944 | /** | |
d23fe947 DW |
8945 | * Find a device with unused free space and use it to replace a |
8946 | * failed/vacant region in an array. We replace failed regions one a | |
8947 | * array at a time. The result is that a new spare disk will be added | |
8948 | * to the first failed array and after the monitor has finished | |
8949 | * propagating failures the remainder will be consumed. | |
88758e9d | 8950 | * |
d23fe947 DW |
8951 | * FIXME add a capability for mdmon to request spares from another |
8952 | * container. | |
88758e9d DW |
8953 | */ |
8954 | ||
8955 | struct intel_super *super = a->container->sb; | |
88758e9d | 8956 | int inst = a->info.container_member; |
949c47a0 | 8957 | struct imsm_dev *dev = get_imsm_dev(super, inst); |
238c0a71 | 8958 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
88758e9d DW |
8959 | int failed = a->info.array.raid_disks; |
8960 | struct mdinfo *rv = NULL; | |
8961 | struct mdinfo *d; | |
8962 | struct mdinfo *di; | |
8963 | struct metadata_update *mu; | |
8964 | struct dl *dl; | |
8965 | struct imsm_update_activate_spare *u; | |
8966 | int num_spares = 0; | |
8967 | int i; | |
95d07a2c | 8968 | int allowed; |
88758e9d DW |
8969 | |
8970 | for (d = a->info.devs ; d ; d = d->next) { | |
8971 | if ((d->curr_state & DS_FAULTY) && | |
8972 | d->state_fd >= 0) | |
8973 | /* wait for Removal to happen */ | |
8974 | return NULL; | |
8975 | if (d->state_fd >= 0) | |
8976 | failed--; | |
8977 | } | |
8978 | ||
8979 | dprintf("imsm: activate spare: inst=%d failed=%d (%d) level=%d\n", | |
8980 | inst, failed, a->info.array.raid_disks, a->info.array.level); | |
1af97990 | 8981 | |
e2962bfc AK |
8982 | if (imsm_reshape_blocks_arrays_changes(super)) |
8983 | return NULL; | |
1af97990 | 8984 | |
fc8ca064 AK |
8985 | /* Cannot activate another spare if rebuild is in progress already |
8986 | */ | |
8987 | if (is_rebuilding(dev)) { | |
7a862a02 | 8988 | dprintf("imsm: No spare activation allowed. Rebuild in progress already.\n"); |
fc8ca064 AK |
8989 | return NULL; |
8990 | } | |
8991 | ||
89c67882 AK |
8992 | if (a->info.array.level == 4) |
8993 | /* No repair for takeovered array | |
8994 | * imsm doesn't support raid4 | |
8995 | */ | |
8996 | return NULL; | |
8997 | ||
3b451610 AK |
8998 | if (imsm_check_degraded(super, dev, failed, MAP_0) != |
8999 | IMSM_T_STATE_DEGRADED) | |
88758e9d DW |
9000 | return NULL; |
9001 | ||
83ca7d45 AP |
9002 | if (get_imsm_map(dev, MAP_0)->map_state == IMSM_T_STATE_UNINITIALIZED) { |
9003 | dprintf("imsm: No spare activation allowed. Volume is not initialized.\n"); | |
9004 | return NULL; | |
9005 | } | |
9006 | ||
95d07a2c LM |
9007 | /* |
9008 | * If there are any failed disks check state of the other volume. | |
9009 | * Block rebuild if the another one is failed until failed disks | |
9010 | * are removed from container. | |
9011 | */ | |
9012 | if (failed) { | |
7a862a02 | 9013 | dprintf("found failed disks in %.*s, check if there anotherfailed sub-array.\n", |
c4acd1e5 | 9014 | MAX_RAID_SERIAL_LEN, dev->volume); |
95d07a2c LM |
9015 | /* check if states of the other volumes allow for rebuild */ |
9016 | for (i = 0; i < super->anchor->num_raid_devs; i++) { | |
9017 | if (i != inst) { | |
9018 | allowed = imsm_rebuild_allowed(a->container, | |
9019 | i, failed); | |
9020 | if (!allowed) | |
9021 | return NULL; | |
9022 | } | |
9023 | } | |
9024 | } | |
9025 | ||
88758e9d | 9026 | /* For each slot, if it is not working, find a spare */ |
88758e9d DW |
9027 | for (i = 0; i < a->info.array.raid_disks; i++) { |
9028 | for (d = a->info.devs ; d ; d = d->next) | |
9029 | if (d->disk.raid_disk == i) | |
9030 | break; | |
9031 | dprintf("found %d: %p %x\n", i, d, d?d->curr_state:0); | |
9032 | if (d && (d->state_fd >= 0)) | |
9033 | continue; | |
9034 | ||
272906ef | 9035 | /* |
a20d2ba5 DW |
9036 | * OK, this device needs recovery. Try to re-add the |
9037 | * previous occupant of this slot, if this fails see if | |
9038 | * we can continue the assimilation of a spare that was | |
9039 | * partially assimilated, finally try to activate a new | |
9040 | * spare. | |
272906ef DW |
9041 | */ |
9042 | dl = imsm_readd(super, i, a); | |
9043 | if (!dl) | |
b303fe21 | 9044 | dl = imsm_add_spare(super, i, a, 0, rv); |
a20d2ba5 | 9045 | if (!dl) |
b303fe21 | 9046 | dl = imsm_add_spare(super, i, a, 1, rv); |
272906ef DW |
9047 | if (!dl) |
9048 | continue; | |
1011e834 | 9049 | |
272906ef | 9050 | /* found a usable disk with enough space */ |
503975b9 | 9051 | di = xcalloc(1, sizeof(*di)); |
272906ef DW |
9052 | |
9053 | /* dl->index will be -1 in the case we are activating a | |
9054 | * pristine spare. imsm_process_update() will create a | |
9055 | * new index in this case. Once a disk is found to be | |
9056 | * failed in all member arrays it is kicked from the | |
9057 | * metadata | |
9058 | */ | |
9059 | di->disk.number = dl->index; | |
d23fe947 | 9060 | |
272906ef DW |
9061 | /* (ab)use di->devs to store a pointer to the device |
9062 | * we chose | |
9063 | */ | |
9064 | di->devs = (struct mdinfo *) dl; | |
9065 | ||
9066 | di->disk.raid_disk = i; | |
9067 | di->disk.major = dl->major; | |
9068 | di->disk.minor = dl->minor; | |
9069 | di->disk.state = 0; | |
d23534e4 | 9070 | di->recovery_start = 0; |
5551b113 | 9071 | di->data_offset = pba_of_lba0(map); |
272906ef DW |
9072 | di->component_size = a->info.component_size; |
9073 | di->container_member = inst; | |
5e46202e | 9074 | di->bb.supported = 1; |
2c8890e9 | 9075 | if (a->info.consistency_policy == CONSISTENCY_POLICY_PPL) { |
2432ce9b | 9076 | di->ppl_sector = get_ppl_sector(super, inst); |
c2462068 | 9077 | di->ppl_size = MULTIPLE_PPL_AREA_SIZE_IMSM >> 9; |
2432ce9b | 9078 | } |
148acb7b | 9079 | super->random = random32(); |
272906ef DW |
9080 | di->next = rv; |
9081 | rv = di; | |
9082 | num_spares++; | |
9083 | dprintf("%x:%x to be %d at %llu\n", dl->major, dl->minor, | |
9084 | i, di->data_offset); | |
88758e9d DW |
9085 | } |
9086 | ||
9087 | if (!rv) | |
9088 | /* No spares found */ | |
9089 | return rv; | |
9090 | /* Now 'rv' has a list of devices to return. | |
9091 | * Create a metadata_update record to update the | |
9092 | * disk_ord_tbl for the array | |
9093 | */ | |
503975b9 | 9094 | mu = xmalloc(sizeof(*mu)); |
1011e834 | 9095 | mu->buf = xcalloc(num_spares, |
503975b9 | 9096 | sizeof(struct imsm_update_activate_spare)); |
88758e9d | 9097 | mu->space = NULL; |
cb23f1f4 | 9098 | mu->space_list = NULL; |
88758e9d DW |
9099 | mu->len = sizeof(struct imsm_update_activate_spare) * num_spares; |
9100 | mu->next = *updates; | |
9101 | u = (struct imsm_update_activate_spare *) mu->buf; | |
9102 | ||
9103 | for (di = rv ; di ; di = di->next) { | |
9104 | u->type = update_activate_spare; | |
d23fe947 DW |
9105 | u->dl = (struct dl *) di->devs; |
9106 | di->devs = NULL; | |
88758e9d DW |
9107 | u->slot = di->disk.raid_disk; |
9108 | u->array = inst; | |
9109 | u->next = u + 1; | |
9110 | u++; | |
9111 | } | |
9112 | (u-1)->next = NULL; | |
9113 | *updates = mu; | |
9114 | ||
9115 | return rv; | |
9116 | } | |
9117 | ||
54c2c1ea | 9118 | static int disks_overlap(struct intel_super *super, int idx, struct imsm_update_create_array *u) |
8273f55e | 9119 | { |
54c2c1ea | 9120 | struct imsm_dev *dev = get_imsm_dev(super, idx); |
238c0a71 AK |
9121 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
9122 | struct imsm_map *new_map = get_imsm_map(&u->dev, MAP_0); | |
54c2c1ea DW |
9123 | struct disk_info *inf = get_disk_info(u); |
9124 | struct imsm_disk *disk; | |
8273f55e DW |
9125 | int i; |
9126 | int j; | |
8273f55e | 9127 | |
54c2c1ea | 9128 | for (i = 0; i < map->num_members; i++) { |
238c0a71 | 9129 | disk = get_imsm_disk(super, get_imsm_disk_idx(dev, i, MAP_X)); |
54c2c1ea DW |
9130 | for (j = 0; j < new_map->num_members; j++) |
9131 | if (serialcmp(disk->serial, inf[j].serial) == 0) | |
8273f55e DW |
9132 | return 1; |
9133 | } | |
9134 | ||
9135 | return 0; | |
9136 | } | |
9137 | ||
1a64be56 LM |
9138 | static struct dl *get_disk_super(struct intel_super *super, int major, int minor) |
9139 | { | |
594dc1b8 JS |
9140 | struct dl *dl; |
9141 | ||
1a64be56 | 9142 | for (dl = super->disks; dl; dl = dl->next) |
089f9d79 | 9143 | if (dl->major == major && dl->minor == minor) |
1a64be56 LM |
9144 | return dl; |
9145 | return NULL; | |
9146 | } | |
9147 | ||
9148 | static int remove_disk_super(struct intel_super *super, int major, int minor) | |
9149 | { | |
594dc1b8 | 9150 | struct dl *prev; |
1a64be56 LM |
9151 | struct dl *dl; |
9152 | ||
9153 | prev = NULL; | |
9154 | for (dl = super->disks; dl; dl = dl->next) { | |
089f9d79 | 9155 | if (dl->major == major && dl->minor == minor) { |
1a64be56 LM |
9156 | /* remove */ |
9157 | if (prev) | |
9158 | prev->next = dl->next; | |
9159 | else | |
9160 | super->disks = dl->next; | |
9161 | dl->next = NULL; | |
9162 | __free_imsm_disk(dl); | |
1ade5cc1 | 9163 | dprintf("removed %x:%x\n", major, minor); |
1a64be56 LM |
9164 | break; |
9165 | } | |
9166 | prev = dl; | |
9167 | } | |
9168 | return 0; | |
9169 | } | |
9170 | ||
f21e18ca | 9171 | static void imsm_delete(struct intel_super *super, struct dl **dlp, unsigned index); |
ae6aad82 | 9172 | |
1a64be56 LM |
9173 | static int add_remove_disk_update(struct intel_super *super) |
9174 | { | |
9175 | int check_degraded = 0; | |
594dc1b8 JS |
9176 | struct dl *disk; |
9177 | ||
1a64be56 LM |
9178 | /* add/remove some spares to/from the metadata/contrainer */ |
9179 | while (super->disk_mgmt_list) { | |
9180 | struct dl *disk_cfg; | |
9181 | ||
9182 | disk_cfg = super->disk_mgmt_list; | |
9183 | super->disk_mgmt_list = disk_cfg->next; | |
9184 | disk_cfg->next = NULL; | |
9185 | ||
9186 | if (disk_cfg->action == DISK_ADD) { | |
9187 | disk_cfg->next = super->disks; | |
9188 | super->disks = disk_cfg; | |
9189 | check_degraded = 1; | |
1ade5cc1 N |
9190 | dprintf("added %x:%x\n", |
9191 | disk_cfg->major, disk_cfg->minor); | |
1a64be56 LM |
9192 | } else if (disk_cfg->action == DISK_REMOVE) { |
9193 | dprintf("Disk remove action processed: %x.%x\n", | |
9194 | disk_cfg->major, disk_cfg->minor); | |
9195 | disk = get_disk_super(super, | |
9196 | disk_cfg->major, | |
9197 | disk_cfg->minor); | |
9198 | if (disk) { | |
9199 | /* store action status */ | |
9200 | disk->action = DISK_REMOVE; | |
9201 | /* remove spare disks only */ | |
9202 | if (disk->index == -1) { | |
9203 | remove_disk_super(super, | |
9204 | disk_cfg->major, | |
9205 | disk_cfg->minor); | |
91c97c54 MT |
9206 | } else { |
9207 | disk_cfg->fd = disk->fd; | |
9208 | disk->fd = -1; | |
1a64be56 LM |
9209 | } |
9210 | } | |
9211 | /* release allocate disk structure */ | |
9212 | __free_imsm_disk(disk_cfg); | |
9213 | } | |
9214 | } | |
9215 | return check_degraded; | |
9216 | } | |
9217 | ||
a29911da PC |
9218 | static int apply_reshape_migration_update(struct imsm_update_reshape_migration *u, |
9219 | struct intel_super *super, | |
9220 | void ***space_list) | |
9221 | { | |
9222 | struct intel_dev *id; | |
9223 | void **tofree = NULL; | |
9224 | int ret_val = 0; | |
9225 | ||
1ade5cc1 | 9226 | dprintf("(enter)\n"); |
089f9d79 | 9227 | if (u->subdev < 0 || u->subdev > 1) { |
a29911da PC |
9228 | dprintf("imsm: Error: Wrong subdev: %i\n", u->subdev); |
9229 | return ret_val; | |
9230 | } | |
089f9d79 | 9231 | if (space_list == NULL || *space_list == NULL) { |
a29911da PC |
9232 | dprintf("imsm: Error: Memory is not allocated\n"); |
9233 | return ret_val; | |
9234 | } | |
9235 | ||
9236 | for (id = super->devlist ; id; id = id->next) { | |
9237 | if (id->index == (unsigned)u->subdev) { | |
9238 | struct imsm_dev *dev = get_imsm_dev(super, u->subdev); | |
9239 | struct imsm_map *map; | |
9240 | struct imsm_dev *new_dev = | |
9241 | (struct imsm_dev *)*space_list; | |
238c0a71 | 9242 | struct imsm_map *migr_map = get_imsm_map(dev, MAP_1); |
a29911da PC |
9243 | int to_state; |
9244 | struct dl *new_disk; | |
9245 | ||
9246 | if (new_dev == NULL) | |
9247 | return ret_val; | |
9248 | *space_list = **space_list; | |
9249 | memcpy(new_dev, dev, sizeof_imsm_dev(dev, 0)); | |
238c0a71 | 9250 | map = get_imsm_map(new_dev, MAP_0); |
a29911da PC |
9251 | if (migr_map) { |
9252 | dprintf("imsm: Error: migration in progress"); | |
9253 | return ret_val; | |
9254 | } | |
9255 | ||
9256 | to_state = map->map_state; | |
9257 | if ((u->new_level == 5) && (map->raid_level == 0)) { | |
9258 | map->num_members++; | |
9259 | /* this should not happen */ | |
9260 | if (u->new_disks[0] < 0) { | |
9261 | map->failed_disk_num = | |
9262 | map->num_members - 1; | |
9263 | to_state = IMSM_T_STATE_DEGRADED; | |
9264 | } else | |
9265 | to_state = IMSM_T_STATE_NORMAL; | |
9266 | } | |
8e59f3d8 | 9267 | migrate(new_dev, super, to_state, MIGR_GEN_MIGR); |
a29911da PC |
9268 | if (u->new_level > -1) |
9269 | map->raid_level = u->new_level; | |
238c0a71 | 9270 | migr_map = get_imsm_map(new_dev, MAP_1); |
a29911da PC |
9271 | if ((u->new_level == 5) && |
9272 | (migr_map->raid_level == 0)) { | |
9273 | int ord = map->num_members - 1; | |
9274 | migr_map->num_members--; | |
9275 | if (u->new_disks[0] < 0) | |
9276 | ord |= IMSM_ORD_REBUILD; | |
9277 | set_imsm_ord_tbl_ent(map, | |
9278 | map->num_members - 1, | |
9279 | ord); | |
9280 | } | |
9281 | id->dev = new_dev; | |
9282 | tofree = (void **)dev; | |
9283 | ||
4bba0439 PC |
9284 | /* update chunk size |
9285 | */ | |
06fb291a PB |
9286 | if (u->new_chunksize > 0) { |
9287 | unsigned long long num_data_stripes; | |
9529d343 MD |
9288 | struct imsm_map *dest_map = |
9289 | get_imsm_map(dev, MAP_0); | |
06fb291a | 9290 | int used_disks = |
9529d343 | 9291 | imsm_num_data_members(dest_map); |
06fb291a PB |
9292 | |
9293 | if (used_disks == 0) | |
9294 | return ret_val; | |
9295 | ||
4bba0439 PC |
9296 | map->blocks_per_strip = |
9297 | __cpu_to_le16(u->new_chunksize * 2); | |
06fb291a | 9298 | num_data_stripes = |
fcc2c9da | 9299 | imsm_dev_size(dev) / used_disks; |
06fb291a PB |
9300 | num_data_stripes /= map->blocks_per_strip; |
9301 | num_data_stripes /= map->num_domains; | |
9302 | set_num_data_stripes(map, num_data_stripes); | |
9303 | } | |
4bba0439 | 9304 | |
44490938 MD |
9305 | /* ensure blocks_per_member has valid value |
9306 | */ | |
9307 | set_blocks_per_member(map, | |
9308 | per_dev_array_size(map) + | |
9309 | NUM_BLOCKS_DIRTY_STRIPE_REGION); | |
9310 | ||
a29911da PC |
9311 | /* add disk |
9312 | */ | |
089f9d79 JS |
9313 | if (u->new_level != 5 || migr_map->raid_level != 0 || |
9314 | migr_map->raid_level == map->raid_level) | |
a29911da PC |
9315 | goto skip_disk_add; |
9316 | ||
9317 | if (u->new_disks[0] >= 0) { | |
9318 | /* use passes spare | |
9319 | */ | |
9320 | new_disk = get_disk_super(super, | |
9321 | major(u->new_disks[0]), | |
9322 | minor(u->new_disks[0])); | |
7a862a02 | 9323 | dprintf("imsm: new disk for reshape is: %i:%i (%p, index = %i)\n", |
a29911da PC |
9324 | major(u->new_disks[0]), |
9325 | minor(u->new_disks[0]), | |
9326 | new_disk, new_disk->index); | |
9327 | if (new_disk == NULL) | |
9328 | goto error_disk_add; | |
9329 | ||
9330 | new_disk->index = map->num_members - 1; | |
9331 | /* slot to fill in autolayout | |
9332 | */ | |
9333 | new_disk->raiddisk = new_disk->index; | |
9334 | new_disk->disk.status |= CONFIGURED_DISK; | |
9335 | new_disk->disk.status &= ~SPARE_DISK; | |
9336 | } else | |
9337 | goto error_disk_add; | |
9338 | ||
9339 | skip_disk_add: | |
9340 | *tofree = *space_list; | |
9341 | /* calculate new size | |
9342 | */ | |
f3871fdc | 9343 | imsm_set_array_size(new_dev, -1); |
a29911da PC |
9344 | |
9345 | ret_val = 1; | |
9346 | } | |
9347 | } | |
9348 | ||
9349 | if (tofree) | |
9350 | *space_list = tofree; | |
9351 | return ret_val; | |
9352 | ||
9353 | error_disk_add: | |
9354 | dprintf("Error: imsm: Cannot find disk.\n"); | |
9355 | return ret_val; | |
9356 | } | |
9357 | ||
f3871fdc AK |
9358 | static int apply_size_change_update(struct imsm_update_size_change *u, |
9359 | struct intel_super *super) | |
9360 | { | |
9361 | struct intel_dev *id; | |
9362 | int ret_val = 0; | |
9363 | ||
1ade5cc1 | 9364 | dprintf("(enter)\n"); |
089f9d79 | 9365 | if (u->subdev < 0 || u->subdev > 1) { |
f3871fdc AK |
9366 | dprintf("imsm: Error: Wrong subdev: %i\n", u->subdev); |
9367 | return ret_val; | |
9368 | } | |
9369 | ||
9370 | for (id = super->devlist ; id; id = id->next) { | |
9371 | if (id->index == (unsigned)u->subdev) { | |
9372 | struct imsm_dev *dev = get_imsm_dev(super, u->subdev); | |
9373 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
9529d343 | 9374 | int used_disks = imsm_num_data_members(map); |
f3871fdc | 9375 | unsigned long long blocks_per_member; |
06fb291a | 9376 | unsigned long long num_data_stripes; |
44490938 MD |
9377 | unsigned long long new_size_per_disk; |
9378 | ||
9379 | if (used_disks == 0) | |
9380 | return 0; | |
f3871fdc AK |
9381 | |
9382 | /* calculate new size | |
9383 | */ | |
44490938 MD |
9384 | new_size_per_disk = u->new_size / used_disks; |
9385 | blocks_per_member = new_size_per_disk + | |
9386 | NUM_BLOCKS_DIRTY_STRIPE_REGION; | |
9387 | num_data_stripes = new_size_per_disk / | |
06fb291a PB |
9388 | map->blocks_per_strip; |
9389 | num_data_stripes /= map->num_domains; | |
9390 | dprintf("(size: %llu, blocks per member: %llu, num_data_stipes: %llu)\n", | |
44490938 | 9391 | u->new_size, new_size_per_disk, |
06fb291a | 9392 | num_data_stripes); |
f3871fdc | 9393 | set_blocks_per_member(map, blocks_per_member); |
06fb291a | 9394 | set_num_data_stripes(map, num_data_stripes); |
f3871fdc AK |
9395 | imsm_set_array_size(dev, u->new_size); |
9396 | ||
9397 | ret_val = 1; | |
9398 | break; | |
9399 | } | |
9400 | } | |
9401 | ||
9402 | return ret_val; | |
9403 | } | |
9404 | ||
061d7da3 | 9405 | static int apply_update_activate_spare(struct imsm_update_activate_spare *u, |
ca9de185 | 9406 | struct intel_super *super, |
061d7da3 LO |
9407 | struct active_array *active_array) |
9408 | { | |
9409 | struct imsm_super *mpb = super->anchor; | |
9410 | struct imsm_dev *dev = get_imsm_dev(super, u->array); | |
238c0a71 | 9411 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
061d7da3 LO |
9412 | struct imsm_map *migr_map; |
9413 | struct active_array *a; | |
9414 | struct imsm_disk *disk; | |
9415 | __u8 to_state; | |
9416 | struct dl *dl; | |
9417 | unsigned int found; | |
9418 | int failed; | |
5961eeec | 9419 | int victim; |
061d7da3 | 9420 | int i; |
5961eeec | 9421 | int second_map_created = 0; |
061d7da3 | 9422 | |
5961eeec | 9423 | for (; u; u = u->next) { |
238c0a71 | 9424 | victim = get_imsm_disk_idx(dev, u->slot, MAP_X); |
061d7da3 | 9425 | |
5961eeec | 9426 | if (victim < 0) |
9427 | return 0; | |
061d7da3 | 9428 | |
5961eeec | 9429 | for (dl = super->disks; dl; dl = dl->next) |
9430 | if (dl == u->dl) | |
9431 | break; | |
061d7da3 | 9432 | |
5961eeec | 9433 | if (!dl) { |
7a862a02 | 9434 | pr_err("error: imsm_activate_spare passed an unknown disk (index: %d)\n", |
5961eeec | 9435 | u->dl->index); |
9436 | return 0; | |
9437 | } | |
061d7da3 | 9438 | |
5961eeec | 9439 | /* count failures (excluding rebuilds and the victim) |
9440 | * to determine map[0] state | |
9441 | */ | |
9442 | failed = 0; | |
9443 | for (i = 0; i < map->num_members; i++) { | |
9444 | if (i == u->slot) | |
9445 | continue; | |
9446 | disk = get_imsm_disk(super, | |
238c0a71 | 9447 | get_imsm_disk_idx(dev, i, MAP_X)); |
5961eeec | 9448 | if (!disk || is_failed(disk)) |
9449 | failed++; | |
9450 | } | |
061d7da3 | 9451 | |
5961eeec | 9452 | /* adding a pristine spare, assign a new index */ |
9453 | if (dl->index < 0) { | |
9454 | dl->index = super->anchor->num_disks; | |
9455 | super->anchor->num_disks++; | |
9456 | } | |
9457 | disk = &dl->disk; | |
9458 | disk->status |= CONFIGURED_DISK; | |
9459 | disk->status &= ~SPARE_DISK; | |
9460 | ||
9461 | /* mark rebuild */ | |
238c0a71 | 9462 | to_state = imsm_check_degraded(super, dev, failed, MAP_0); |
5961eeec | 9463 | if (!second_map_created) { |
9464 | second_map_created = 1; | |
9465 | map->map_state = IMSM_T_STATE_DEGRADED; | |
9466 | migrate(dev, super, to_state, MIGR_REBUILD); | |
9467 | } else | |
9468 | map->map_state = to_state; | |
238c0a71 | 9469 | migr_map = get_imsm_map(dev, MAP_1); |
5961eeec | 9470 | set_imsm_ord_tbl_ent(map, u->slot, dl->index); |
9471 | set_imsm_ord_tbl_ent(migr_map, u->slot, | |
9472 | dl->index | IMSM_ORD_REBUILD); | |
9473 | ||
9474 | /* update the family_num to mark a new container | |
9475 | * generation, being careful to record the existing | |
9476 | * family_num in orig_family_num to clean up after | |
9477 | * earlier mdadm versions that neglected to set it. | |
9478 | */ | |
9479 | if (mpb->orig_family_num == 0) | |
9480 | mpb->orig_family_num = mpb->family_num; | |
9481 | mpb->family_num += super->random; | |
9482 | ||
9483 | /* count arrays using the victim in the metadata */ | |
9484 | found = 0; | |
9485 | for (a = active_array; a ; a = a->next) { | |
9486 | dev = get_imsm_dev(super, a->info.container_member); | |
238c0a71 | 9487 | map = get_imsm_map(dev, MAP_0); |
061d7da3 | 9488 | |
5961eeec | 9489 | if (get_imsm_disk_slot(map, victim) >= 0) |
9490 | found++; | |
9491 | } | |
061d7da3 | 9492 | |
5961eeec | 9493 | /* delete the victim if it is no longer being |
9494 | * utilized anywhere | |
061d7da3 | 9495 | */ |
5961eeec | 9496 | if (!found) { |
9497 | struct dl **dlp; | |
061d7da3 | 9498 | |
5961eeec | 9499 | /* We know that 'manager' isn't touching anything, |
9500 | * so it is safe to delete | |
9501 | */ | |
9502 | for (dlp = &super->disks; *dlp; dlp = &(*dlp)->next) | |
061d7da3 LO |
9503 | if ((*dlp)->index == victim) |
9504 | break; | |
5961eeec | 9505 | |
9506 | /* victim may be on the missing list */ | |
9507 | if (!*dlp) | |
9508 | for (dlp = &super->missing; *dlp; | |
9509 | dlp = &(*dlp)->next) | |
9510 | if ((*dlp)->index == victim) | |
9511 | break; | |
9512 | imsm_delete(super, dlp, victim); | |
9513 | } | |
061d7da3 LO |
9514 | } |
9515 | ||
9516 | return 1; | |
9517 | } | |
a29911da | 9518 | |
2e5dc010 N |
9519 | static int apply_reshape_container_disks_update(struct imsm_update_reshape *u, |
9520 | struct intel_super *super, | |
9521 | void ***space_list) | |
9522 | { | |
9523 | struct dl *new_disk; | |
9524 | struct intel_dev *id; | |
9525 | int i; | |
9526 | int delta_disks = u->new_raid_disks - u->old_raid_disks; | |
ee4beede | 9527 | int disk_count = u->old_raid_disks; |
2e5dc010 N |
9528 | void **tofree = NULL; |
9529 | int devices_to_reshape = 1; | |
9530 | struct imsm_super *mpb = super->anchor; | |
9531 | int ret_val = 0; | |
d098291a | 9532 | unsigned int dev_id; |
2e5dc010 | 9533 | |
1ade5cc1 | 9534 | dprintf("(enter)\n"); |
2e5dc010 N |
9535 | |
9536 | /* enable spares to use in array */ | |
9537 | for (i = 0; i < delta_disks; i++) { | |
9538 | new_disk = get_disk_super(super, | |
9539 | major(u->new_disks[i]), | |
9540 | minor(u->new_disks[i])); | |
7a862a02 | 9541 | dprintf("imsm: new disk for reshape is: %i:%i (%p, index = %i)\n", |
2e5dc010 N |
9542 | major(u->new_disks[i]), minor(u->new_disks[i]), |
9543 | new_disk, new_disk->index); | |
089f9d79 JS |
9544 | if (new_disk == NULL || |
9545 | (new_disk->index >= 0 && | |
9546 | new_disk->index < u->old_raid_disks)) | |
2e5dc010 | 9547 | goto update_reshape_exit; |
ee4beede | 9548 | new_disk->index = disk_count++; |
2e5dc010 N |
9549 | /* slot to fill in autolayout |
9550 | */ | |
9551 | new_disk->raiddisk = new_disk->index; | |
9552 | new_disk->disk.status |= | |
9553 | CONFIGURED_DISK; | |
9554 | new_disk->disk.status &= ~SPARE_DISK; | |
9555 | } | |
9556 | ||
ed7333bd AK |
9557 | dprintf("imsm: volume set mpb->num_raid_devs = %i\n", |
9558 | mpb->num_raid_devs); | |
2e5dc010 N |
9559 | /* manage changes in volume |
9560 | */ | |
d098291a | 9561 | for (dev_id = 0; dev_id < mpb->num_raid_devs; dev_id++) { |
2e5dc010 N |
9562 | void **sp = *space_list; |
9563 | struct imsm_dev *newdev; | |
9564 | struct imsm_map *newmap, *oldmap; | |
9565 | ||
d098291a AK |
9566 | for (id = super->devlist ; id; id = id->next) { |
9567 | if (id->index == dev_id) | |
9568 | break; | |
9569 | } | |
9570 | if (id == NULL) | |
9571 | break; | |
2e5dc010 N |
9572 | if (!sp) |
9573 | continue; | |
9574 | *space_list = *sp; | |
9575 | newdev = (void*)sp; | |
9576 | /* Copy the dev, but not (all of) the map */ | |
9577 | memcpy(newdev, id->dev, sizeof(*newdev)); | |
238c0a71 AK |
9578 | oldmap = get_imsm_map(id->dev, MAP_0); |
9579 | newmap = get_imsm_map(newdev, MAP_0); | |
2e5dc010 N |
9580 | /* Copy the current map */ |
9581 | memcpy(newmap, oldmap, sizeof_imsm_map(oldmap)); | |
9582 | /* update one device only | |
9583 | */ | |
9584 | if (devices_to_reshape) { | |
ed7333bd AK |
9585 | dprintf("imsm: modifying subdev: %i\n", |
9586 | id->index); | |
2e5dc010 N |
9587 | devices_to_reshape--; |
9588 | newdev->vol.migr_state = 1; | |
9589 | newdev->vol.curr_migr_unit = 0; | |
ea672ee1 | 9590 | set_migr_type(newdev, MIGR_GEN_MIGR); |
2e5dc010 N |
9591 | newmap->num_members = u->new_raid_disks; |
9592 | for (i = 0; i < delta_disks; i++) { | |
9593 | set_imsm_ord_tbl_ent(newmap, | |
9594 | u->old_raid_disks + i, | |
9595 | u->old_raid_disks + i); | |
9596 | } | |
9597 | /* New map is correct, now need to save old map | |
9598 | */ | |
238c0a71 | 9599 | newmap = get_imsm_map(newdev, MAP_1); |
2e5dc010 N |
9600 | memcpy(newmap, oldmap, sizeof_imsm_map(oldmap)); |
9601 | ||
f3871fdc | 9602 | imsm_set_array_size(newdev, -1); |
2e5dc010 N |
9603 | } |
9604 | ||
9605 | sp = (void **)id->dev; | |
9606 | id->dev = newdev; | |
9607 | *sp = tofree; | |
9608 | tofree = sp; | |
8e59f3d8 AK |
9609 | |
9610 | /* Clear migration record */ | |
9611 | memset(super->migr_rec, 0, sizeof(struct migr_record)); | |
2e5dc010 | 9612 | } |
819bc634 AK |
9613 | if (tofree) |
9614 | *space_list = tofree; | |
2e5dc010 N |
9615 | ret_val = 1; |
9616 | ||
9617 | update_reshape_exit: | |
9618 | ||
9619 | return ret_val; | |
9620 | } | |
9621 | ||
bb025c2f | 9622 | static int apply_takeover_update(struct imsm_update_takeover *u, |
8ca6df95 KW |
9623 | struct intel_super *super, |
9624 | void ***space_list) | |
bb025c2f KW |
9625 | { |
9626 | struct imsm_dev *dev = NULL; | |
8ca6df95 KW |
9627 | struct intel_dev *dv; |
9628 | struct imsm_dev *dev_new; | |
bb025c2f KW |
9629 | struct imsm_map *map; |
9630 | struct dl *dm, *du; | |
8ca6df95 | 9631 | int i; |
bb025c2f KW |
9632 | |
9633 | for (dv = super->devlist; dv; dv = dv->next) | |
9634 | if (dv->index == (unsigned int)u->subarray) { | |
9635 | dev = dv->dev; | |
9636 | break; | |
9637 | } | |
9638 | ||
9639 | if (dev == NULL) | |
9640 | return 0; | |
9641 | ||
238c0a71 | 9642 | map = get_imsm_map(dev, MAP_0); |
bb025c2f KW |
9643 | |
9644 | if (u->direction == R10_TO_R0) { | |
06fb291a PB |
9645 | unsigned long long num_data_stripes; |
9646 | ||
43d5ec18 | 9647 | /* Number of failed disks must be half of initial disk number */ |
3b451610 AK |
9648 | if (imsm_count_failed(super, dev, MAP_0) != |
9649 | (map->num_members / 2)) | |
43d5ec18 KW |
9650 | return 0; |
9651 | ||
bb025c2f KW |
9652 | /* iterate through devices to mark removed disks as spare */ |
9653 | for (dm = super->disks; dm; dm = dm->next) { | |
9654 | if (dm->disk.status & FAILED_DISK) { | |
9655 | int idx = dm->index; | |
9656 | /* update indexes on the disk list */ | |
9657 | /* FIXME this loop-with-the-loop looks wrong, I'm not convinced | |
9658 | the index values will end up being correct.... NB */ | |
9659 | for (du = super->disks; du; du = du->next) | |
9660 | if (du->index > idx) | |
9661 | du->index--; | |
9662 | /* mark as spare disk */ | |
a8619d23 | 9663 | mark_spare(dm); |
bb025c2f KW |
9664 | } |
9665 | } | |
bb025c2f KW |
9666 | /* update map */ |
9667 | map->num_members = map->num_members / 2; | |
9668 | map->map_state = IMSM_T_STATE_NORMAL; | |
9669 | map->num_domains = 1; | |
9670 | map->raid_level = 0; | |
9671 | map->failed_disk_num = -1; | |
4a353e6e RS |
9672 | num_data_stripes = imsm_dev_size(dev) / 2; |
9673 | num_data_stripes /= map->blocks_per_strip; | |
9674 | set_num_data_stripes(map, num_data_stripes); | |
bb025c2f KW |
9675 | } |
9676 | ||
8ca6df95 KW |
9677 | if (u->direction == R0_TO_R10) { |
9678 | void **space; | |
4a353e6e RS |
9679 | unsigned long long num_data_stripes; |
9680 | ||
8ca6df95 KW |
9681 | /* update slots in current disk list */ |
9682 | for (dm = super->disks; dm; dm = dm->next) { | |
9683 | if (dm->index >= 0) | |
9684 | dm->index *= 2; | |
9685 | } | |
9686 | /* create new *missing* disks */ | |
9687 | for (i = 0; i < map->num_members; i++) { | |
9688 | space = *space_list; | |
9689 | if (!space) | |
9690 | continue; | |
9691 | *space_list = *space; | |
9692 | du = (void *)space; | |
9693 | memcpy(du, super->disks, sizeof(*du)); | |
8ca6df95 KW |
9694 | du->fd = -1; |
9695 | du->minor = 0; | |
9696 | du->major = 0; | |
9697 | du->index = (i * 2) + 1; | |
9698 | sprintf((char *)du->disk.serial, | |
9699 | " MISSING_%d", du->index); | |
9700 | sprintf((char *)du->serial, | |
9701 | "MISSING_%d", du->index); | |
9702 | du->next = super->missing; | |
9703 | super->missing = du; | |
9704 | } | |
9705 | /* create new dev and map */ | |
9706 | space = *space_list; | |
9707 | if (!space) | |
9708 | return 0; | |
9709 | *space_list = *space; | |
9710 | dev_new = (void *)space; | |
9711 | memcpy(dev_new, dev, sizeof(*dev)); | |
9712 | /* update new map */ | |
238c0a71 | 9713 | map = get_imsm_map(dev_new, MAP_0); |
8ca6df95 | 9714 | map->num_members = map->num_members * 2; |
1a2487c2 | 9715 | map->map_state = IMSM_T_STATE_DEGRADED; |
8ca6df95 KW |
9716 | map->num_domains = 2; |
9717 | map->raid_level = 1; | |
4a353e6e RS |
9718 | num_data_stripes = imsm_dev_size(dev) / 2; |
9719 | num_data_stripes /= map->blocks_per_strip; | |
9720 | num_data_stripes /= map->num_domains; | |
9721 | set_num_data_stripes(map, num_data_stripes); | |
9722 | ||
8ca6df95 KW |
9723 | /* replace dev<->dev_new */ |
9724 | dv->dev = dev_new; | |
9725 | } | |
bb025c2f KW |
9726 | /* update disk order table */ |
9727 | for (du = super->disks; du; du = du->next) | |
9728 | if (du->index >= 0) | |
9729 | set_imsm_ord_tbl_ent(map, du->index, du->index); | |
8ca6df95 | 9730 | for (du = super->missing; du; du = du->next) |
1a2487c2 KW |
9731 | if (du->index >= 0) { |
9732 | set_imsm_ord_tbl_ent(map, du->index, du->index); | |
4c9e8c1e | 9733 | mark_missing(super, dv->dev, &du->disk, du->index); |
1a2487c2 | 9734 | } |
bb025c2f KW |
9735 | |
9736 | return 1; | |
9737 | } | |
9738 | ||
e8319a19 DW |
9739 | static void imsm_process_update(struct supertype *st, |
9740 | struct metadata_update *update) | |
9741 | { | |
9742 | /** | |
9743 | * crack open the metadata_update envelope to find the update record | |
9744 | * update can be one of: | |
d195167d AK |
9745 | * update_reshape_container_disks - all the arrays in the container |
9746 | * are being reshaped to have more devices. We need to mark | |
9747 | * the arrays for general migration and convert selected spares | |
9748 | * into active devices. | |
9749 | * update_activate_spare - a spare device has replaced a failed | |
1011e834 N |
9750 | * device in an array, update the disk_ord_tbl. If this disk is |
9751 | * present in all member arrays then also clear the SPARE_DISK | |
9752 | * flag | |
d195167d AK |
9753 | * update_create_array |
9754 | * update_kill_array | |
9755 | * update_rename_array | |
9756 | * update_add_remove_disk | |
e8319a19 DW |
9757 | */ |
9758 | struct intel_super *super = st->sb; | |
4d7b1503 | 9759 | struct imsm_super *mpb; |
e8319a19 DW |
9760 | enum imsm_update_type type = *(enum imsm_update_type *) update->buf; |
9761 | ||
4d7b1503 DW |
9762 | /* update requires a larger buf but the allocation failed */ |
9763 | if (super->next_len && !super->next_buf) { | |
9764 | super->next_len = 0; | |
9765 | return; | |
9766 | } | |
9767 | ||
9768 | if (super->next_buf) { | |
9769 | memcpy(super->next_buf, super->buf, super->len); | |
9770 | free(super->buf); | |
9771 | super->len = super->next_len; | |
9772 | super->buf = super->next_buf; | |
9773 | ||
9774 | super->next_len = 0; | |
9775 | super->next_buf = NULL; | |
9776 | } | |
9777 | ||
9778 | mpb = super->anchor; | |
9779 | ||
e8319a19 | 9780 | switch (type) { |
0ec5d470 AK |
9781 | case update_general_migration_checkpoint: { |
9782 | struct intel_dev *id; | |
9783 | struct imsm_update_general_migration_checkpoint *u = | |
9784 | (void *)update->buf; | |
9785 | ||
1ade5cc1 | 9786 | dprintf("called for update_general_migration_checkpoint\n"); |
0ec5d470 AK |
9787 | |
9788 | /* find device under general migration */ | |
9789 | for (id = super->devlist ; id; id = id->next) { | |
9790 | if (is_gen_migration(id->dev)) { | |
9791 | id->dev->vol.curr_migr_unit = | |
9792 | __cpu_to_le32(u->curr_migr_unit); | |
9793 | super->updates_pending++; | |
9794 | } | |
9795 | } | |
9796 | break; | |
9797 | } | |
bb025c2f KW |
9798 | case update_takeover: { |
9799 | struct imsm_update_takeover *u = (void *)update->buf; | |
1a2487c2 KW |
9800 | if (apply_takeover_update(u, super, &update->space_list)) { |
9801 | imsm_update_version_info(super); | |
bb025c2f | 9802 | super->updates_pending++; |
1a2487c2 | 9803 | } |
bb025c2f KW |
9804 | break; |
9805 | } | |
9806 | ||
78b10e66 | 9807 | case update_reshape_container_disks: { |
d195167d | 9808 | struct imsm_update_reshape *u = (void *)update->buf; |
2e5dc010 N |
9809 | if (apply_reshape_container_disks_update( |
9810 | u, super, &update->space_list)) | |
9811 | super->updates_pending++; | |
78b10e66 N |
9812 | break; |
9813 | } | |
48c5303a | 9814 | case update_reshape_migration: { |
a29911da PC |
9815 | struct imsm_update_reshape_migration *u = (void *)update->buf; |
9816 | if (apply_reshape_migration_update( | |
9817 | u, super, &update->space_list)) | |
9818 | super->updates_pending++; | |
48c5303a PC |
9819 | break; |
9820 | } | |
f3871fdc AK |
9821 | case update_size_change: { |
9822 | struct imsm_update_size_change *u = (void *)update->buf; | |
9823 | if (apply_size_change_update(u, super)) | |
9824 | super->updates_pending++; | |
9825 | break; | |
9826 | } | |
e8319a19 | 9827 | case update_activate_spare: { |
1011e834 | 9828 | struct imsm_update_activate_spare *u = (void *) update->buf; |
061d7da3 LO |
9829 | if (apply_update_activate_spare(u, super, st->arrays)) |
9830 | super->updates_pending++; | |
8273f55e DW |
9831 | break; |
9832 | } | |
9833 | case update_create_array: { | |
9834 | /* someone wants to create a new array, we need to be aware of | |
9835 | * a few races/collisions: | |
9836 | * 1/ 'Create' called by two separate instances of mdadm | |
9837 | * 2/ 'Create' versus 'activate_spare': mdadm has chosen | |
9838 | * devices that have since been assimilated via | |
9839 | * activate_spare. | |
9840 | * In the event this update can not be carried out mdadm will | |
9841 | * (FIX ME) notice that its update did not take hold. | |
9842 | */ | |
9843 | struct imsm_update_create_array *u = (void *) update->buf; | |
ba2de7ba | 9844 | struct intel_dev *dv; |
8273f55e DW |
9845 | struct imsm_dev *dev; |
9846 | struct imsm_map *map, *new_map; | |
9847 | unsigned long long start, end; | |
9848 | unsigned long long new_start, new_end; | |
9849 | int i; | |
54c2c1ea DW |
9850 | struct disk_info *inf; |
9851 | struct dl *dl; | |
8273f55e DW |
9852 | |
9853 | /* handle racing creates: first come first serve */ | |
9854 | if (u->dev_idx < mpb->num_raid_devs) { | |
1ade5cc1 | 9855 | dprintf("subarray %d already defined\n", u->dev_idx); |
ba2de7ba | 9856 | goto create_error; |
8273f55e DW |
9857 | } |
9858 | ||
9859 | /* check update is next in sequence */ | |
9860 | if (u->dev_idx != mpb->num_raid_devs) { | |
1ade5cc1 N |
9861 | dprintf("can not create array %d expected index %d\n", |
9862 | u->dev_idx, mpb->num_raid_devs); | |
ba2de7ba | 9863 | goto create_error; |
8273f55e DW |
9864 | } |
9865 | ||
238c0a71 | 9866 | new_map = get_imsm_map(&u->dev, MAP_0); |
5551b113 | 9867 | new_start = pba_of_lba0(new_map); |
44490938 | 9868 | new_end = new_start + per_dev_array_size(new_map); |
54c2c1ea | 9869 | inf = get_disk_info(u); |
8273f55e DW |
9870 | |
9871 | /* handle activate_spare versus create race: | |
9872 | * check to make sure that overlapping arrays do not include | |
9873 | * overalpping disks | |
9874 | */ | |
9875 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
949c47a0 | 9876 | dev = get_imsm_dev(super, i); |
238c0a71 | 9877 | map = get_imsm_map(dev, MAP_0); |
5551b113 | 9878 | start = pba_of_lba0(map); |
44490938 | 9879 | end = start + per_dev_array_size(map); |
8273f55e DW |
9880 | if ((new_start >= start && new_start <= end) || |
9881 | (start >= new_start && start <= new_end)) | |
54c2c1ea DW |
9882 | /* overlap */; |
9883 | else | |
9884 | continue; | |
9885 | ||
9886 | if (disks_overlap(super, i, u)) { | |
1ade5cc1 | 9887 | dprintf("arrays overlap\n"); |
ba2de7ba | 9888 | goto create_error; |
8273f55e DW |
9889 | } |
9890 | } | |
8273f55e | 9891 | |
949c47a0 DW |
9892 | /* check that prepare update was successful */ |
9893 | if (!update->space) { | |
1ade5cc1 | 9894 | dprintf("prepare update failed\n"); |
ba2de7ba | 9895 | goto create_error; |
949c47a0 DW |
9896 | } |
9897 | ||
54c2c1ea DW |
9898 | /* check that all disks are still active before committing |
9899 | * changes. FIXME: could we instead handle this by creating a | |
9900 | * degraded array? That's probably not what the user expects, | |
9901 | * so better to drop this update on the floor. | |
9902 | */ | |
9903 | for (i = 0; i < new_map->num_members; i++) { | |
9904 | dl = serial_to_dl(inf[i].serial, super); | |
9905 | if (!dl) { | |
1ade5cc1 | 9906 | dprintf("disk disappeared\n"); |
ba2de7ba | 9907 | goto create_error; |
54c2c1ea | 9908 | } |
949c47a0 DW |
9909 | } |
9910 | ||
8273f55e | 9911 | super->updates_pending++; |
54c2c1ea DW |
9912 | |
9913 | /* convert spares to members and fixup ord_tbl */ | |
9914 | for (i = 0; i < new_map->num_members; i++) { | |
9915 | dl = serial_to_dl(inf[i].serial, super); | |
9916 | if (dl->index == -1) { | |
9917 | dl->index = mpb->num_disks; | |
9918 | mpb->num_disks++; | |
9919 | dl->disk.status |= CONFIGURED_DISK; | |
9920 | dl->disk.status &= ~SPARE_DISK; | |
9921 | } | |
9922 | set_imsm_ord_tbl_ent(new_map, i, dl->index); | |
9923 | } | |
9924 | ||
ba2de7ba DW |
9925 | dv = update->space; |
9926 | dev = dv->dev; | |
949c47a0 DW |
9927 | update->space = NULL; |
9928 | imsm_copy_dev(dev, &u->dev); | |
ba2de7ba DW |
9929 | dv->index = u->dev_idx; |
9930 | dv->next = super->devlist; | |
9931 | super->devlist = dv; | |
8273f55e | 9932 | mpb->num_raid_devs++; |
8273f55e | 9933 | |
4d1313e9 | 9934 | imsm_update_version_info(super); |
8273f55e | 9935 | break; |
ba2de7ba DW |
9936 | create_error: |
9937 | /* mdmon knows how to release update->space, but not | |
9938 | * ((struct intel_dev *) update->space)->dev | |
9939 | */ | |
9940 | if (update->space) { | |
9941 | dv = update->space; | |
9942 | free(dv->dev); | |
9943 | } | |
8273f55e | 9944 | break; |
e8319a19 | 9945 | } |
33414a01 DW |
9946 | case update_kill_array: { |
9947 | struct imsm_update_kill_array *u = (void *) update->buf; | |
9948 | int victim = u->dev_idx; | |
9949 | struct active_array *a; | |
9950 | struct intel_dev **dp; | |
9951 | struct imsm_dev *dev; | |
9952 | ||
9953 | /* sanity check that we are not affecting the uuid of | |
9954 | * active arrays, or deleting an active array | |
9955 | * | |
9956 | * FIXME when immutable ids are available, but note that | |
9957 | * we'll also need to fixup the invalidated/active | |
9958 | * subarray indexes in mdstat | |
9959 | */ | |
9960 | for (a = st->arrays; a; a = a->next) | |
9961 | if (a->info.container_member >= victim) | |
9962 | break; | |
9963 | /* by definition if mdmon is running at least one array | |
9964 | * is active in the container, so checking | |
9965 | * mpb->num_raid_devs is just extra paranoia | |
9966 | */ | |
9967 | dev = get_imsm_dev(super, victim); | |
9968 | if (a || !dev || mpb->num_raid_devs == 1) { | |
9969 | dprintf("failed to delete subarray-%d\n", victim); | |
9970 | break; | |
9971 | } | |
9972 | ||
9973 | for (dp = &super->devlist; *dp;) | |
f21e18ca | 9974 | if ((*dp)->index == (unsigned)super->current_vol) { |
33414a01 DW |
9975 | *dp = (*dp)->next; |
9976 | } else { | |
f21e18ca | 9977 | if ((*dp)->index > (unsigned)victim) |
33414a01 DW |
9978 | (*dp)->index--; |
9979 | dp = &(*dp)->next; | |
9980 | } | |
9981 | mpb->num_raid_devs--; | |
9982 | super->updates_pending++; | |
9983 | break; | |
9984 | } | |
aa534678 DW |
9985 | case update_rename_array: { |
9986 | struct imsm_update_rename_array *u = (void *) update->buf; | |
9987 | char name[MAX_RAID_SERIAL_LEN+1]; | |
9988 | int target = u->dev_idx; | |
9989 | struct active_array *a; | |
9990 | struct imsm_dev *dev; | |
9991 | ||
9992 | /* sanity check that we are not affecting the uuid of | |
9993 | * an active array | |
9994 | */ | |
40659392 | 9995 | memset(name, 0, sizeof(name)); |
aa534678 DW |
9996 | snprintf(name, MAX_RAID_SERIAL_LEN, "%s", (char *) u->name); |
9997 | name[MAX_RAID_SERIAL_LEN] = '\0'; | |
9998 | for (a = st->arrays; a; a = a->next) | |
9999 | if (a->info.container_member == target) | |
10000 | break; | |
10001 | dev = get_imsm_dev(super, u->dev_idx); | |
10002 | if (a || !dev || !check_name(super, name, 1)) { | |
10003 | dprintf("failed to rename subarray-%d\n", target); | |
10004 | break; | |
10005 | } | |
10006 | ||
40659392 | 10007 | memcpy(dev->volume, name, MAX_RAID_SERIAL_LEN); |
aa534678 DW |
10008 | super->updates_pending++; |
10009 | break; | |
10010 | } | |
1a64be56 | 10011 | case update_add_remove_disk: { |
43dad3d6 | 10012 | /* we may be able to repair some arrays if disks are |
095b8088 | 10013 | * being added, check the status of add_remove_disk |
1a64be56 LM |
10014 | * if discs has been added. |
10015 | */ | |
10016 | if (add_remove_disk_update(super)) { | |
43dad3d6 | 10017 | struct active_array *a; |
072b727f DW |
10018 | |
10019 | super->updates_pending++; | |
1a64be56 | 10020 | for (a = st->arrays; a; a = a->next) |
43dad3d6 DW |
10021 | a->check_degraded = 1; |
10022 | } | |
43dad3d6 | 10023 | break; |
e8319a19 | 10024 | } |
bbab0940 TM |
10025 | case update_prealloc_badblocks_mem: |
10026 | break; | |
e6e9dd3f AP |
10027 | case update_rwh_policy: { |
10028 | struct imsm_update_rwh_policy *u = (void *)update->buf; | |
10029 | int target = u->dev_idx; | |
10030 | struct imsm_dev *dev = get_imsm_dev(super, target); | |
10031 | if (!dev) { | |
10032 | dprintf("could not find subarray-%d\n", target); | |
10033 | break; | |
10034 | } | |
10035 | ||
10036 | if (dev->rwh_policy != u->new_policy) { | |
10037 | dev->rwh_policy = u->new_policy; | |
10038 | super->updates_pending++; | |
10039 | } | |
10040 | break; | |
10041 | } | |
1a64be56 | 10042 | default: |
ebf3be99 | 10043 | pr_err("error: unsupported process update type:(type: %d)\n", type); |
1a64be56 | 10044 | } |
e8319a19 | 10045 | } |
88758e9d | 10046 | |
bc0b9d34 PC |
10047 | static struct mdinfo *get_spares_for_grow(struct supertype *st); |
10048 | ||
5fe6f031 N |
10049 | static int imsm_prepare_update(struct supertype *st, |
10050 | struct metadata_update *update) | |
8273f55e | 10051 | { |
949c47a0 | 10052 | /** |
4d7b1503 DW |
10053 | * Allocate space to hold new disk entries, raid-device entries or a new |
10054 | * mpb if necessary. The manager synchronously waits for updates to | |
10055 | * complete in the monitor, so new mpb buffers allocated here can be | |
10056 | * integrated by the monitor thread without worrying about live pointers | |
10057 | * in the manager thread. | |
8273f55e | 10058 | */ |
095b8088 | 10059 | enum imsm_update_type type; |
4d7b1503 | 10060 | struct intel_super *super = st->sb; |
f36a9ecd | 10061 | unsigned int sector_size = super->sector_size; |
4d7b1503 DW |
10062 | struct imsm_super *mpb = super->anchor; |
10063 | size_t buf_len; | |
10064 | size_t len = 0; | |
949c47a0 | 10065 | |
095b8088 N |
10066 | if (update->len < (int)sizeof(type)) |
10067 | return 0; | |
10068 | ||
10069 | type = *(enum imsm_update_type *) update->buf; | |
10070 | ||
949c47a0 | 10071 | switch (type) { |
0ec5d470 | 10072 | case update_general_migration_checkpoint: |
095b8088 N |
10073 | if (update->len < (int)sizeof(struct imsm_update_general_migration_checkpoint)) |
10074 | return 0; | |
1ade5cc1 | 10075 | dprintf("called for update_general_migration_checkpoint\n"); |
0ec5d470 | 10076 | break; |
abedf5fc KW |
10077 | case update_takeover: { |
10078 | struct imsm_update_takeover *u = (void *)update->buf; | |
095b8088 N |
10079 | if (update->len < (int)sizeof(*u)) |
10080 | return 0; | |
abedf5fc KW |
10081 | if (u->direction == R0_TO_R10) { |
10082 | void **tail = (void **)&update->space_list; | |
10083 | struct imsm_dev *dev = get_imsm_dev(super, u->subarray); | |
238c0a71 | 10084 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
abedf5fc KW |
10085 | int num_members = map->num_members; |
10086 | void *space; | |
10087 | int size, i; | |
abedf5fc KW |
10088 | /* allocate memory for added disks */ |
10089 | for (i = 0; i < num_members; i++) { | |
10090 | size = sizeof(struct dl); | |
503975b9 | 10091 | space = xmalloc(size); |
abedf5fc KW |
10092 | *tail = space; |
10093 | tail = space; | |
10094 | *tail = NULL; | |
10095 | } | |
10096 | /* allocate memory for new device */ | |
10097 | size = sizeof_imsm_dev(super->devlist->dev, 0) + | |
10098 | (num_members * sizeof(__u32)); | |
503975b9 N |
10099 | space = xmalloc(size); |
10100 | *tail = space; | |
10101 | tail = space; | |
10102 | *tail = NULL; | |
10103 | len = disks_to_mpb_size(num_members * 2); | |
abedf5fc KW |
10104 | } |
10105 | ||
10106 | break; | |
10107 | } | |
78b10e66 | 10108 | case update_reshape_container_disks: { |
d195167d AK |
10109 | /* Every raid device in the container is about to |
10110 | * gain some more devices, and we will enter a | |
10111 | * reconfiguration. | |
10112 | * So each 'imsm_map' will be bigger, and the imsm_vol | |
10113 | * will now hold 2 of them. | |
10114 | * Thus we need new 'struct imsm_dev' allocations sized | |
10115 | * as sizeof_imsm_dev but with more devices in both maps. | |
10116 | */ | |
10117 | struct imsm_update_reshape *u = (void *)update->buf; | |
10118 | struct intel_dev *dl; | |
10119 | void **space_tail = (void**)&update->space_list; | |
10120 | ||
095b8088 N |
10121 | if (update->len < (int)sizeof(*u)) |
10122 | return 0; | |
10123 | ||
1ade5cc1 | 10124 | dprintf("for update_reshape\n"); |
d195167d AK |
10125 | |
10126 | for (dl = super->devlist; dl; dl = dl->next) { | |
10127 | int size = sizeof_imsm_dev(dl->dev, 1); | |
10128 | void *s; | |
d677e0b8 AK |
10129 | if (u->new_raid_disks > u->old_raid_disks) |
10130 | size += sizeof(__u32)*2* | |
10131 | (u->new_raid_disks - u->old_raid_disks); | |
503975b9 | 10132 | s = xmalloc(size); |
d195167d AK |
10133 | *space_tail = s; |
10134 | space_tail = s; | |
10135 | *space_tail = NULL; | |
10136 | } | |
10137 | ||
10138 | len = disks_to_mpb_size(u->new_raid_disks); | |
10139 | dprintf("New anchor length is %llu\n", (unsigned long long)len); | |
78b10e66 N |
10140 | break; |
10141 | } | |
48c5303a | 10142 | case update_reshape_migration: { |
bc0b9d34 PC |
10143 | /* for migration level 0->5 we need to add disks |
10144 | * so the same as for container operation we will copy | |
10145 | * device to the bigger location. | |
10146 | * in memory prepared device and new disk area are prepared | |
10147 | * for usage in process update | |
10148 | */ | |
10149 | struct imsm_update_reshape_migration *u = (void *)update->buf; | |
10150 | struct intel_dev *id; | |
10151 | void **space_tail = (void **)&update->space_list; | |
10152 | int size; | |
10153 | void *s; | |
10154 | int current_level = -1; | |
10155 | ||
095b8088 N |
10156 | if (update->len < (int)sizeof(*u)) |
10157 | return 0; | |
10158 | ||
1ade5cc1 | 10159 | dprintf("for update_reshape\n"); |
bc0b9d34 PC |
10160 | |
10161 | /* add space for bigger array in update | |
10162 | */ | |
10163 | for (id = super->devlist; id; id = id->next) { | |
10164 | if (id->index == (unsigned)u->subdev) { | |
10165 | size = sizeof_imsm_dev(id->dev, 1); | |
10166 | if (u->new_raid_disks > u->old_raid_disks) | |
10167 | size += sizeof(__u32)*2* | |
10168 | (u->new_raid_disks - u->old_raid_disks); | |
503975b9 | 10169 | s = xmalloc(size); |
bc0b9d34 PC |
10170 | *space_tail = s; |
10171 | space_tail = s; | |
10172 | *space_tail = NULL; | |
10173 | break; | |
10174 | } | |
10175 | } | |
10176 | if (update->space_list == NULL) | |
10177 | break; | |
10178 | ||
10179 | /* add space for disk in update | |
10180 | */ | |
10181 | size = sizeof(struct dl); | |
503975b9 | 10182 | s = xmalloc(size); |
bc0b9d34 PC |
10183 | *space_tail = s; |
10184 | space_tail = s; | |
10185 | *space_tail = NULL; | |
10186 | ||
10187 | /* add spare device to update | |
10188 | */ | |
10189 | for (id = super->devlist ; id; id = id->next) | |
10190 | if (id->index == (unsigned)u->subdev) { | |
10191 | struct imsm_dev *dev; | |
10192 | struct imsm_map *map; | |
10193 | ||
10194 | dev = get_imsm_dev(super, u->subdev); | |
238c0a71 | 10195 | map = get_imsm_map(dev, MAP_0); |
bc0b9d34 PC |
10196 | current_level = map->raid_level; |
10197 | break; | |
10198 | } | |
089f9d79 | 10199 | if (u->new_level == 5 && u->new_level != current_level) { |
bc0b9d34 PC |
10200 | struct mdinfo *spares; |
10201 | ||
10202 | spares = get_spares_for_grow(st); | |
10203 | if (spares) { | |
10204 | struct dl *dl; | |
10205 | struct mdinfo *dev; | |
10206 | ||
10207 | dev = spares->devs; | |
10208 | if (dev) { | |
10209 | u->new_disks[0] = | |
10210 | makedev(dev->disk.major, | |
10211 | dev->disk.minor); | |
10212 | dl = get_disk_super(super, | |
10213 | dev->disk.major, | |
10214 | dev->disk.minor); | |
10215 | dl->index = u->old_raid_disks; | |
10216 | dev = dev->next; | |
10217 | } | |
10218 | sysfs_free(spares); | |
10219 | } | |
10220 | } | |
10221 | len = disks_to_mpb_size(u->new_raid_disks); | |
10222 | dprintf("New anchor length is %llu\n", (unsigned long long)len); | |
48c5303a PC |
10223 | break; |
10224 | } | |
f3871fdc | 10225 | case update_size_change: { |
095b8088 N |
10226 | if (update->len < (int)sizeof(struct imsm_update_size_change)) |
10227 | return 0; | |
10228 | break; | |
10229 | } | |
10230 | case update_activate_spare: { | |
10231 | if (update->len < (int)sizeof(struct imsm_update_activate_spare)) | |
10232 | return 0; | |
f3871fdc AK |
10233 | break; |
10234 | } | |
949c47a0 DW |
10235 | case update_create_array: { |
10236 | struct imsm_update_create_array *u = (void *) update->buf; | |
ba2de7ba | 10237 | struct intel_dev *dv; |
54c2c1ea | 10238 | struct imsm_dev *dev = &u->dev; |
238c0a71 | 10239 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
54c2c1ea DW |
10240 | struct dl *dl; |
10241 | struct disk_info *inf; | |
10242 | int i; | |
10243 | int activate = 0; | |
949c47a0 | 10244 | |
095b8088 N |
10245 | if (update->len < (int)sizeof(*u)) |
10246 | return 0; | |
10247 | ||
54c2c1ea DW |
10248 | inf = get_disk_info(u); |
10249 | len = sizeof_imsm_dev(dev, 1); | |
ba2de7ba | 10250 | /* allocate a new super->devlist entry */ |
503975b9 N |
10251 | dv = xmalloc(sizeof(*dv)); |
10252 | dv->dev = xmalloc(len); | |
10253 | update->space = dv; | |
949c47a0 | 10254 | |
54c2c1ea DW |
10255 | /* count how many spares will be converted to members */ |
10256 | for (i = 0; i < map->num_members; i++) { | |
10257 | dl = serial_to_dl(inf[i].serial, super); | |
10258 | if (!dl) { | |
10259 | /* hmm maybe it failed?, nothing we can do about | |
10260 | * it here | |
10261 | */ | |
10262 | continue; | |
10263 | } | |
10264 | if (count_memberships(dl, super) == 0) | |
10265 | activate++; | |
10266 | } | |
10267 | len += activate * sizeof(struct imsm_disk); | |
949c47a0 | 10268 | break; |
095b8088 N |
10269 | } |
10270 | case update_kill_array: { | |
10271 | if (update->len < (int)sizeof(struct imsm_update_kill_array)) | |
10272 | return 0; | |
949c47a0 DW |
10273 | break; |
10274 | } | |
095b8088 N |
10275 | case update_rename_array: { |
10276 | if (update->len < (int)sizeof(struct imsm_update_rename_array)) | |
10277 | return 0; | |
10278 | break; | |
10279 | } | |
10280 | case update_add_remove_disk: | |
10281 | /* no update->len needed */ | |
10282 | break; | |
bbab0940 TM |
10283 | case update_prealloc_badblocks_mem: |
10284 | super->extra_space += sizeof(struct bbm_log) - | |
10285 | get_imsm_bbm_log_size(super->bbm_log); | |
10286 | break; | |
e6e9dd3f AP |
10287 | case update_rwh_policy: { |
10288 | if (update->len < (int)sizeof(struct imsm_update_rwh_policy)) | |
10289 | return 0; | |
10290 | break; | |
10291 | } | |
095b8088 N |
10292 | default: |
10293 | return 0; | |
949c47a0 | 10294 | } |
8273f55e | 10295 | |
4d7b1503 DW |
10296 | /* check if we need a larger metadata buffer */ |
10297 | if (super->next_buf) | |
10298 | buf_len = super->next_len; | |
10299 | else | |
10300 | buf_len = super->len; | |
10301 | ||
bbab0940 | 10302 | if (__le32_to_cpu(mpb->mpb_size) + super->extra_space + len > buf_len) { |
4d7b1503 DW |
10303 | /* ok we need a larger buf than what is currently allocated |
10304 | * if this allocation fails process_update will notice that | |
10305 | * ->next_len is set and ->next_buf is NULL | |
10306 | */ | |
bbab0940 TM |
10307 | buf_len = ROUND_UP(__le32_to_cpu(mpb->mpb_size) + |
10308 | super->extra_space + len, sector_size); | |
4d7b1503 DW |
10309 | if (super->next_buf) |
10310 | free(super->next_buf); | |
10311 | ||
10312 | super->next_len = buf_len; | |
f36a9ecd | 10313 | if (posix_memalign(&super->next_buf, sector_size, buf_len) == 0) |
1f45a8ad DW |
10314 | memset(super->next_buf, 0, buf_len); |
10315 | else | |
4d7b1503 DW |
10316 | super->next_buf = NULL; |
10317 | } | |
5fe6f031 | 10318 | return 1; |
8273f55e DW |
10319 | } |
10320 | ||
ae6aad82 | 10321 | /* must be called while manager is quiesced */ |
f21e18ca | 10322 | static void imsm_delete(struct intel_super *super, struct dl **dlp, unsigned index) |
ae6aad82 DW |
10323 | { |
10324 | struct imsm_super *mpb = super->anchor; | |
ae6aad82 DW |
10325 | struct dl *iter; |
10326 | struct imsm_dev *dev; | |
10327 | struct imsm_map *map; | |
4c9e8c1e | 10328 | unsigned int i, j, num_members; |
fb12a745 | 10329 | __u32 ord, ord_map0; |
4c9e8c1e | 10330 | struct bbm_log *log = super->bbm_log; |
ae6aad82 | 10331 | |
1ade5cc1 | 10332 | dprintf("deleting device[%d] from imsm_super\n", index); |
ae6aad82 DW |
10333 | |
10334 | /* shift all indexes down one */ | |
10335 | for (iter = super->disks; iter; iter = iter->next) | |
f21e18ca | 10336 | if (iter->index > (int)index) |
ae6aad82 | 10337 | iter->index--; |
47ee5a45 | 10338 | for (iter = super->missing; iter; iter = iter->next) |
f21e18ca | 10339 | if (iter->index > (int)index) |
47ee5a45 | 10340 | iter->index--; |
ae6aad82 DW |
10341 | |
10342 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
10343 | dev = get_imsm_dev(super, i); | |
238c0a71 | 10344 | map = get_imsm_map(dev, MAP_0); |
24565c9a DW |
10345 | num_members = map->num_members; |
10346 | for (j = 0; j < num_members; j++) { | |
10347 | /* update ord entries being careful not to propagate | |
10348 | * ord-flags to the first map | |
10349 | */ | |
238c0a71 | 10350 | ord = get_imsm_ord_tbl_ent(dev, j, MAP_X); |
fb12a745 | 10351 | ord_map0 = get_imsm_ord_tbl_ent(dev, j, MAP_0); |
ae6aad82 | 10352 | |
24565c9a DW |
10353 | if (ord_to_idx(ord) <= index) |
10354 | continue; | |
ae6aad82 | 10355 | |
238c0a71 | 10356 | map = get_imsm_map(dev, MAP_0); |
fb12a745 | 10357 | set_imsm_ord_tbl_ent(map, j, ord_map0 - 1); |
238c0a71 | 10358 | map = get_imsm_map(dev, MAP_1); |
24565c9a DW |
10359 | if (map) |
10360 | set_imsm_ord_tbl_ent(map, j, ord - 1); | |
ae6aad82 DW |
10361 | } |
10362 | } | |
10363 | ||
4c9e8c1e TM |
10364 | for (i = 0; i < log->entry_count; i++) { |
10365 | struct bbm_log_entry *entry = &log->marked_block_entries[i]; | |
10366 | ||
10367 | if (entry->disk_ordinal <= index) | |
10368 | continue; | |
10369 | entry->disk_ordinal--; | |
10370 | } | |
10371 | ||
ae6aad82 DW |
10372 | mpb->num_disks--; |
10373 | super->updates_pending++; | |
24565c9a DW |
10374 | if (*dlp) { |
10375 | struct dl *dl = *dlp; | |
10376 | ||
10377 | *dlp = (*dlp)->next; | |
10378 | __free_imsm_disk(dl); | |
10379 | } | |
ae6aad82 | 10380 | } |
9a717282 AK |
10381 | |
10382 | static void close_targets(int *targets, int new_disks) | |
10383 | { | |
10384 | int i; | |
10385 | ||
10386 | if (!targets) | |
10387 | return; | |
10388 | ||
10389 | for (i = 0; i < new_disks; i++) { | |
10390 | if (targets[i] >= 0) { | |
10391 | close(targets[i]); | |
10392 | targets[i] = -1; | |
10393 | } | |
10394 | } | |
10395 | } | |
10396 | ||
10397 | static int imsm_get_allowed_degradation(int level, int raid_disks, | |
10398 | struct intel_super *super, | |
10399 | struct imsm_dev *dev) | |
10400 | { | |
10401 | switch (level) { | |
bf5cf7c7 | 10402 | case 1: |
9a717282 AK |
10403 | case 10:{ |
10404 | int ret_val = 0; | |
10405 | struct imsm_map *map; | |
10406 | int i; | |
10407 | ||
10408 | ret_val = raid_disks/2; | |
10409 | /* check map if all disks pairs not failed | |
10410 | * in both maps | |
10411 | */ | |
238c0a71 | 10412 | map = get_imsm_map(dev, MAP_0); |
9a717282 AK |
10413 | for (i = 0; i < ret_val; i++) { |
10414 | int degradation = 0; | |
10415 | if (get_imsm_disk(super, i) == NULL) | |
10416 | degradation++; | |
10417 | if (get_imsm_disk(super, i + 1) == NULL) | |
10418 | degradation++; | |
10419 | if (degradation == 2) | |
10420 | return 0; | |
10421 | } | |
238c0a71 | 10422 | map = get_imsm_map(dev, MAP_1); |
9a717282 AK |
10423 | /* if there is no second map |
10424 | * result can be returned | |
10425 | */ | |
10426 | if (map == NULL) | |
10427 | return ret_val; | |
10428 | /* check degradation in second map | |
10429 | */ | |
10430 | for (i = 0; i < ret_val; i++) { | |
10431 | int degradation = 0; | |
10432 | if (get_imsm_disk(super, i) == NULL) | |
10433 | degradation++; | |
10434 | if (get_imsm_disk(super, i + 1) == NULL) | |
10435 | degradation++; | |
10436 | if (degradation == 2) | |
10437 | return 0; | |
10438 | } | |
10439 | return ret_val; | |
10440 | } | |
10441 | case 5: | |
10442 | return 1; | |
10443 | case 6: | |
10444 | return 2; | |
10445 | default: | |
10446 | return 0; | |
10447 | } | |
10448 | } | |
10449 | ||
687629c2 AK |
10450 | /******************************************************************************* |
10451 | * Function: open_backup_targets | |
10452 | * Description: Function opens file descriptors for all devices given in | |
10453 | * info->devs | |
10454 | * Parameters: | |
10455 | * info : general array info | |
10456 | * raid_disks : number of disks | |
10457 | * raid_fds : table of device's file descriptors | |
9a717282 AK |
10458 | * super : intel super for raid10 degradation check |
10459 | * dev : intel device for raid10 degradation check | |
687629c2 AK |
10460 | * Returns: |
10461 | * 0 : success | |
10462 | * -1 : fail | |
10463 | ******************************************************************************/ | |
9a717282 AK |
10464 | int open_backup_targets(struct mdinfo *info, int raid_disks, int *raid_fds, |
10465 | struct intel_super *super, struct imsm_dev *dev) | |
687629c2 AK |
10466 | { |
10467 | struct mdinfo *sd; | |
f627f5ad | 10468 | int i; |
9a717282 | 10469 | int opened = 0; |
f627f5ad AK |
10470 | |
10471 | for (i = 0; i < raid_disks; i++) | |
10472 | raid_fds[i] = -1; | |
687629c2 AK |
10473 | |
10474 | for (sd = info->devs ; sd ; sd = sd->next) { | |
10475 | char *dn; | |
10476 | ||
10477 | if (sd->disk.state & (1<<MD_DISK_FAULTY)) { | |
10478 | dprintf("disk is faulty!!\n"); | |
10479 | continue; | |
10480 | } | |
10481 | ||
089f9d79 | 10482 | if (sd->disk.raid_disk >= raid_disks || sd->disk.raid_disk < 0) |
687629c2 AK |
10483 | continue; |
10484 | ||
10485 | dn = map_dev(sd->disk.major, | |
10486 | sd->disk.minor, 1); | |
10487 | raid_fds[sd->disk.raid_disk] = dev_open(dn, O_RDWR); | |
10488 | if (raid_fds[sd->disk.raid_disk] < 0) { | |
e12b3daa | 10489 | pr_err("cannot open component\n"); |
9a717282 | 10490 | continue; |
687629c2 | 10491 | } |
9a717282 AK |
10492 | opened++; |
10493 | } | |
10494 | /* check if maximum array degradation level is not exceeded | |
10495 | */ | |
10496 | if ((raid_disks - opened) > | |
089f9d79 JS |
10497 | imsm_get_allowed_degradation(info->new_level, raid_disks, |
10498 | super, dev)) { | |
e12b3daa | 10499 | pr_err("Not enough disks can be opened.\n"); |
9a717282 AK |
10500 | close_targets(raid_fds, raid_disks); |
10501 | return -2; | |
687629c2 AK |
10502 | } |
10503 | return 0; | |
10504 | } | |
10505 | ||
d31ad643 PB |
10506 | /******************************************************************************* |
10507 | * Function: validate_container_imsm | |
10508 | * Description: This routine validates container after assemble, | |
10509 | * eg. if devices in container are under the same controller. | |
10510 | * | |
10511 | * Parameters: | |
10512 | * info : linked list with info about devices used in array | |
10513 | * Returns: | |
10514 | * 1 : HBA mismatch | |
10515 | * 0 : Success | |
10516 | ******************************************************************************/ | |
10517 | int validate_container_imsm(struct mdinfo *info) | |
10518 | { | |
6b781d33 AP |
10519 | if (check_env("IMSM_NO_PLATFORM")) |
10520 | return 0; | |
d31ad643 | 10521 | |
6b781d33 AP |
10522 | struct sys_dev *idev; |
10523 | struct sys_dev *hba = NULL; | |
10524 | struct sys_dev *intel_devices = find_intel_devices(); | |
10525 | char *dev_path = devt_to_devpath(makedev(info->disk.major, | |
10526 | info->disk.minor)); | |
10527 | ||
10528 | for (idev = intel_devices; idev; idev = idev->next) { | |
10529 | if (dev_path && strstr(dev_path, idev->path)) { | |
10530 | hba = idev; | |
10531 | break; | |
d31ad643 | 10532 | } |
6b781d33 AP |
10533 | } |
10534 | if (dev_path) | |
d31ad643 PB |
10535 | free(dev_path); |
10536 | ||
6b781d33 AP |
10537 | if (!hba) { |
10538 | pr_err("WARNING - Cannot detect HBA for device %s!\n", | |
10539 | devid2kname(makedev(info->disk.major, info->disk.minor))); | |
10540 | return 1; | |
10541 | } | |
10542 | ||
10543 | const struct imsm_orom *orom = get_orom_by_device_id(hba->dev_id); | |
10544 | struct mdinfo *dev; | |
10545 | ||
10546 | for (dev = info->next; dev; dev = dev->next) { | |
10547 | dev_path = devt_to_devpath(makedev(dev->disk.major, dev->disk.minor)); | |
10548 | ||
10549 | struct sys_dev *hba2 = NULL; | |
10550 | for (idev = intel_devices; idev; idev = idev->next) { | |
10551 | if (dev_path && strstr(dev_path, idev->path)) { | |
10552 | hba2 = idev; | |
10553 | break; | |
d31ad643 PB |
10554 | } |
10555 | } | |
6b781d33 AP |
10556 | if (dev_path) |
10557 | free(dev_path); | |
10558 | ||
10559 | const struct imsm_orom *orom2 = hba2 == NULL ? NULL : | |
10560 | get_orom_by_device_id(hba2->dev_id); | |
10561 | ||
10562 | if (hba2 && hba->type != hba2->type) { | |
10563 | pr_err("WARNING - HBAs of devices do not match %s != %s\n", | |
10564 | get_sys_dev_type(hba->type), get_sys_dev_type(hba2->type)); | |
10565 | return 1; | |
10566 | } | |
10567 | ||
07cb1e57 | 10568 | if (orom != orom2) { |
6b781d33 AP |
10569 | pr_err("WARNING - IMSM container assembled with disks under different HBAs!\n" |
10570 | " This operation is not supported and can lead to data loss.\n"); | |
10571 | return 1; | |
10572 | } | |
10573 | ||
10574 | if (!orom) { | |
10575 | pr_err("WARNING - IMSM container assembled with disks under HBAs without IMSM platform support!\n" | |
10576 | " This operation is not supported and can lead to data loss.\n"); | |
10577 | return 1; | |
10578 | } | |
d31ad643 | 10579 | } |
6b781d33 | 10580 | |
d31ad643 PB |
10581 | return 0; |
10582 | } | |
32141c17 | 10583 | |
6f50473f TM |
10584 | /******************************************************************************* |
10585 | * Function: imsm_record_badblock | |
10586 | * Description: This routine stores new bad block record in BBM log | |
10587 | * | |
10588 | * Parameters: | |
10589 | * a : array containing a bad block | |
10590 | * slot : disk number containing a bad block | |
10591 | * sector : bad block sector | |
10592 | * length : bad block sectors range | |
10593 | * Returns: | |
10594 | * 1 : Success | |
10595 | * 0 : Error | |
10596 | ******************************************************************************/ | |
10597 | static int imsm_record_badblock(struct active_array *a, int slot, | |
10598 | unsigned long long sector, int length) | |
10599 | { | |
10600 | struct intel_super *super = a->container->sb; | |
10601 | int ord; | |
10602 | int ret; | |
10603 | ||
10604 | ord = imsm_disk_slot_to_ord(a, slot); | |
10605 | if (ord < 0) | |
10606 | return 0; | |
10607 | ||
10608 | ret = record_new_badblock(super->bbm_log, ord_to_idx(ord), sector, | |
10609 | length); | |
10610 | if (ret) | |
10611 | super->updates_pending++; | |
10612 | ||
10613 | return ret; | |
10614 | } | |
c07a5a4f TM |
10615 | /******************************************************************************* |
10616 | * Function: imsm_clear_badblock | |
10617 | * Description: This routine clears bad block record from BBM log | |
10618 | * | |
10619 | * Parameters: | |
10620 | * a : array containing a bad block | |
10621 | * slot : disk number containing a bad block | |
10622 | * sector : bad block sector | |
10623 | * length : bad block sectors range | |
10624 | * Returns: | |
10625 | * 1 : Success | |
10626 | * 0 : Error | |
10627 | ******************************************************************************/ | |
10628 | static int imsm_clear_badblock(struct active_array *a, int slot, | |
10629 | unsigned long long sector, int length) | |
10630 | { | |
10631 | struct intel_super *super = a->container->sb; | |
10632 | int ord; | |
10633 | int ret; | |
10634 | ||
10635 | ord = imsm_disk_slot_to_ord(a, slot); | |
10636 | if (ord < 0) | |
10637 | return 0; | |
10638 | ||
10639 | ret = clear_badblock(super->bbm_log, ord_to_idx(ord), sector, length); | |
10640 | if (ret) | |
10641 | super->updates_pending++; | |
10642 | ||
10643 | return ret; | |
10644 | } | |
928f1424 TM |
10645 | /******************************************************************************* |
10646 | * Function: imsm_get_badblocks | |
10647 | * Description: This routine get list of bad blocks for an array | |
10648 | * | |
10649 | * Parameters: | |
10650 | * a : array | |
10651 | * slot : disk number | |
10652 | * Returns: | |
10653 | * bb : structure containing bad blocks | |
10654 | * NULL : error | |
10655 | ******************************************************************************/ | |
10656 | static struct md_bb *imsm_get_badblocks(struct active_array *a, int slot) | |
10657 | { | |
10658 | int inst = a->info.container_member; | |
10659 | struct intel_super *super = a->container->sb; | |
10660 | struct imsm_dev *dev = get_imsm_dev(super, inst); | |
10661 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
10662 | int ord; | |
10663 | ||
10664 | ord = imsm_disk_slot_to_ord(a, slot); | |
10665 | if (ord < 0) | |
10666 | return NULL; | |
10667 | ||
10668 | get_volume_badblocks(super->bbm_log, ord_to_idx(ord), pba_of_lba0(map), | |
44490938 | 10669 | per_dev_array_size(map), &super->bb); |
928f1424 TM |
10670 | |
10671 | return &super->bb; | |
10672 | } | |
27156a57 TM |
10673 | /******************************************************************************* |
10674 | * Function: examine_badblocks_imsm | |
10675 | * Description: Prints list of bad blocks on a disk to the standard output | |
10676 | * | |
10677 | * Parameters: | |
10678 | * st : metadata handler | |
10679 | * fd : open file descriptor for device | |
10680 | * devname : device name | |
10681 | * Returns: | |
10682 | * 0 : Success | |
10683 | * 1 : Error | |
10684 | ******************************************************************************/ | |
10685 | static int examine_badblocks_imsm(struct supertype *st, int fd, char *devname) | |
10686 | { | |
10687 | struct intel_super *super = st->sb; | |
10688 | struct bbm_log *log = super->bbm_log; | |
10689 | struct dl *d = NULL; | |
10690 | int any = 0; | |
10691 | ||
10692 | for (d = super->disks; d ; d = d->next) { | |
10693 | if (strcmp(d->devname, devname) == 0) | |
10694 | break; | |
10695 | } | |
10696 | ||
10697 | if ((d == NULL) || (d->index < 0)) { /* serial mismatch probably */ | |
10698 | pr_err("%s doesn't appear to be part of a raid array\n", | |
10699 | devname); | |
10700 | return 1; | |
10701 | } | |
10702 | ||
10703 | if (log != NULL) { | |
10704 | unsigned int i; | |
10705 | struct bbm_log_entry *entry = &log->marked_block_entries[0]; | |
10706 | ||
10707 | for (i = 0; i < log->entry_count; i++) { | |
10708 | if (entry[i].disk_ordinal == d->index) { | |
10709 | unsigned long long sector = __le48_to_cpu( | |
10710 | &entry[i].defective_block_start); | |
10711 | int cnt = entry[i].marked_count + 1; | |
10712 | ||
10713 | if (!any) { | |
10714 | printf("Bad-blocks on %s:\n", devname); | |
10715 | any = 1; | |
10716 | } | |
10717 | ||
10718 | printf("%20llu for %d sectors\n", sector, cnt); | |
10719 | } | |
10720 | } | |
10721 | } | |
10722 | ||
10723 | if (!any) | |
10724 | printf("No bad-blocks list configured on %s\n", devname); | |
10725 | ||
10726 | return 0; | |
10727 | } | |
687629c2 AK |
10728 | /******************************************************************************* |
10729 | * Function: init_migr_record_imsm | |
10730 | * Description: Function inits imsm migration record | |
10731 | * Parameters: | |
10732 | * super : imsm internal array info | |
10733 | * dev : device under migration | |
10734 | * info : general array info to find the smallest device | |
10735 | * Returns: | |
10736 | * none | |
10737 | ******************************************************************************/ | |
10738 | void init_migr_record_imsm(struct supertype *st, struct imsm_dev *dev, | |
10739 | struct mdinfo *info) | |
10740 | { | |
10741 | struct intel_super *super = st->sb; | |
10742 | struct migr_record *migr_rec = super->migr_rec; | |
10743 | int new_data_disks; | |
10744 | unsigned long long dsize, dev_sectors; | |
10745 | long long unsigned min_dev_sectors = -1LLU; | |
10746 | struct mdinfo *sd; | |
10747 | char nm[30]; | |
10748 | int fd; | |
238c0a71 AK |
10749 | struct imsm_map *map_dest = get_imsm_map(dev, MAP_0); |
10750 | struct imsm_map *map_src = get_imsm_map(dev, MAP_1); | |
687629c2 | 10751 | unsigned long long num_migr_units; |
3ef4403c | 10752 | unsigned long long array_blocks; |
687629c2 AK |
10753 | |
10754 | memset(migr_rec, 0, sizeof(struct migr_record)); | |
10755 | migr_rec->family_num = __cpu_to_le32(super->anchor->family_num); | |
10756 | ||
10757 | /* only ascending reshape supported now */ | |
10758 | migr_rec->ascending_migr = __cpu_to_le32(1); | |
10759 | ||
10760 | migr_rec->dest_depth_per_unit = GEN_MIGR_AREA_SIZE / | |
10761 | max(map_dest->blocks_per_strip, map_src->blocks_per_strip); | |
e1742195 AK |
10762 | migr_rec->dest_depth_per_unit *= |
10763 | max(map_dest->blocks_per_strip, map_src->blocks_per_strip); | |
9529d343 | 10764 | new_data_disks = imsm_num_data_members(map_dest); |
687629c2 AK |
10765 | migr_rec->blocks_per_unit = |
10766 | __cpu_to_le32(migr_rec->dest_depth_per_unit * new_data_disks); | |
10767 | migr_rec->dest_depth_per_unit = | |
10768 | __cpu_to_le32(migr_rec->dest_depth_per_unit); | |
3ef4403c | 10769 | array_blocks = info->component_size * new_data_disks; |
687629c2 AK |
10770 | num_migr_units = |
10771 | array_blocks / __le32_to_cpu(migr_rec->blocks_per_unit); | |
10772 | ||
10773 | if (array_blocks % __le32_to_cpu(migr_rec->blocks_per_unit)) | |
10774 | num_migr_units++; | |
9f421827 | 10775 | set_num_migr_units(migr_rec, num_migr_units); |
687629c2 AK |
10776 | |
10777 | migr_rec->post_migr_vol_cap = dev->size_low; | |
10778 | migr_rec->post_migr_vol_cap_hi = dev->size_high; | |
10779 | ||
687629c2 AK |
10780 | /* Find the smallest dev */ |
10781 | for (sd = info->devs ; sd ; sd = sd->next) { | |
10782 | sprintf(nm, "%d:%d", sd->disk.major, sd->disk.minor); | |
10783 | fd = dev_open(nm, O_RDONLY); | |
10784 | if (fd < 0) | |
10785 | continue; | |
10786 | get_dev_size(fd, NULL, &dsize); | |
10787 | dev_sectors = dsize / 512; | |
10788 | if (dev_sectors < min_dev_sectors) | |
10789 | min_dev_sectors = dev_sectors; | |
10790 | close(fd); | |
10791 | } | |
9f421827 | 10792 | set_migr_chkp_area_pba(migr_rec, min_dev_sectors - |
687629c2 AK |
10793 | RAID_DISK_RESERVED_BLOCKS_IMSM_HI); |
10794 | ||
10795 | write_imsm_migr_rec(st); | |
10796 | ||
10797 | return; | |
10798 | } | |
10799 | ||
10800 | /******************************************************************************* | |
10801 | * Function: save_backup_imsm | |
10802 | * Description: Function saves critical data stripes to Migration Copy Area | |
10803 | * and updates the current migration unit status. | |
10804 | * Use restore_stripes() to form a destination stripe, | |
10805 | * and to write it to the Copy Area. | |
10806 | * Parameters: | |
10807 | * st : supertype information | |
aea93171 | 10808 | * dev : imsm device that backup is saved for |
687629c2 AK |
10809 | * info : general array info |
10810 | * buf : input buffer | |
687629c2 AK |
10811 | * length : length of data to backup (blocks_per_unit) |
10812 | * Returns: | |
10813 | * 0 : success | |
10814 | *, -1 : fail | |
10815 | ******************************************************************************/ | |
10816 | int save_backup_imsm(struct supertype *st, | |
10817 | struct imsm_dev *dev, | |
10818 | struct mdinfo *info, | |
10819 | void *buf, | |
687629c2 AK |
10820 | int length) |
10821 | { | |
10822 | int rv = -1; | |
10823 | struct intel_super *super = st->sb; | |
594dc1b8 JS |
10824 | unsigned long long *target_offsets; |
10825 | int *targets; | |
687629c2 | 10826 | int i; |
238c0a71 | 10827 | struct imsm_map *map_dest = get_imsm_map(dev, MAP_0); |
687629c2 | 10828 | int new_disks = map_dest->num_members; |
ab724b98 AK |
10829 | int dest_layout = 0; |
10830 | int dest_chunk; | |
d1877f69 | 10831 | unsigned long long start; |
9529d343 | 10832 | int data_disks = imsm_num_data_members(map_dest); |
687629c2 | 10833 | |
503975b9 | 10834 | targets = xmalloc(new_disks * sizeof(int)); |
687629c2 | 10835 | |
7e45b550 AK |
10836 | for (i = 0; i < new_disks; i++) |
10837 | targets[i] = -1; | |
10838 | ||
503975b9 | 10839 | target_offsets = xcalloc(new_disks, sizeof(unsigned long long)); |
687629c2 | 10840 | |
d1877f69 | 10841 | start = info->reshape_progress * 512; |
687629c2 | 10842 | for (i = 0; i < new_disks; i++) { |
9f421827 | 10843 | target_offsets[i] = migr_chkp_area_pba(super->migr_rec) * 512; |
d1877f69 AK |
10844 | /* move back copy area adderss, it will be moved forward |
10845 | * in restore_stripes() using start input variable | |
10846 | */ | |
10847 | target_offsets[i] -= start/data_disks; | |
687629c2 AK |
10848 | } |
10849 | ||
9a717282 AK |
10850 | if (open_backup_targets(info, new_disks, targets, |
10851 | super, dev)) | |
687629c2 AK |
10852 | goto abort; |
10853 | ||
68eb8bc6 | 10854 | dest_layout = imsm_level_to_layout(map_dest->raid_level); |
ab724b98 AK |
10855 | dest_chunk = __le16_to_cpu(map_dest->blocks_per_strip) * 512; |
10856 | ||
687629c2 AK |
10857 | if (restore_stripes(targets, /* list of dest devices */ |
10858 | target_offsets, /* migration record offsets */ | |
10859 | new_disks, | |
ab724b98 AK |
10860 | dest_chunk, |
10861 | map_dest->raid_level, | |
10862 | dest_layout, | |
10863 | -1, /* source backup file descriptor */ | |
10864 | 0, /* input buf offset | |
10865 | * always 0 buf is already offseted */ | |
d1877f69 | 10866 | start, |
687629c2 AK |
10867 | length, |
10868 | buf) != 0) { | |
e7b84f9d | 10869 | pr_err("Error restoring stripes\n"); |
687629c2 AK |
10870 | goto abort; |
10871 | } | |
10872 | ||
10873 | rv = 0; | |
10874 | ||
10875 | abort: | |
10876 | if (targets) { | |
9a717282 | 10877 | close_targets(targets, new_disks); |
687629c2 AK |
10878 | free(targets); |
10879 | } | |
10880 | free(target_offsets); | |
10881 | ||
10882 | return rv; | |
10883 | } | |
10884 | ||
10885 | /******************************************************************************* | |
10886 | * Function: save_checkpoint_imsm | |
10887 | * Description: Function called for current unit status update | |
10888 | * in the migration record. It writes it to disk. | |
10889 | * Parameters: | |
10890 | * super : imsm internal array info | |
10891 | * info : general array info | |
10892 | * Returns: | |
10893 | * 0: success | |
10894 | * 1: failure | |
0228d92c AK |
10895 | * 2: failure, means no valid migration record |
10896 | * / no general migration in progress / | |
687629c2 AK |
10897 | ******************************************************************************/ |
10898 | int save_checkpoint_imsm(struct supertype *st, struct mdinfo *info, int state) | |
10899 | { | |
10900 | struct intel_super *super = st->sb; | |
f8b72ef5 AK |
10901 | unsigned long long blocks_per_unit; |
10902 | unsigned long long curr_migr_unit; | |
10903 | ||
2e062e82 | 10904 | if (load_imsm_migr_rec(super, info) != 0) { |
7a862a02 | 10905 | dprintf("imsm: ERROR: Cannot read migration record for checkpoint save.\n"); |
2e062e82 AK |
10906 | return 1; |
10907 | } | |
10908 | ||
f8b72ef5 AK |
10909 | blocks_per_unit = __le32_to_cpu(super->migr_rec->blocks_per_unit); |
10910 | if (blocks_per_unit == 0) { | |
0228d92c AK |
10911 | dprintf("imsm: no migration in progress.\n"); |
10912 | return 2; | |
687629c2 | 10913 | } |
f8b72ef5 AK |
10914 | curr_migr_unit = info->reshape_progress / blocks_per_unit; |
10915 | /* check if array is alligned to copy area | |
10916 | * if it is not alligned, add one to current migration unit value | |
10917 | * this can happend on array reshape finish only | |
10918 | */ | |
10919 | if (info->reshape_progress % blocks_per_unit) | |
10920 | curr_migr_unit++; | |
687629c2 | 10921 | |
9f421827 | 10922 | set_current_migr_unit(super->migr_rec, curr_migr_unit); |
687629c2 | 10923 | super->migr_rec->rec_status = __cpu_to_le32(state); |
9f421827 PB |
10924 | set_migr_dest_1st_member_lba(super->migr_rec, |
10925 | super->migr_rec->dest_depth_per_unit * curr_migr_unit); | |
10926 | ||
687629c2 | 10927 | if (write_imsm_migr_rec(st) < 0) { |
7a862a02 | 10928 | dprintf("imsm: Cannot write migration record outside backup area\n"); |
687629c2 AK |
10929 | return 1; |
10930 | } | |
10931 | ||
10932 | return 0; | |
10933 | } | |
10934 | ||
276d77db AK |
10935 | /******************************************************************************* |
10936 | * Function: recover_backup_imsm | |
10937 | * Description: Function recovers critical data from the Migration Copy Area | |
10938 | * while assembling an array. | |
10939 | * Parameters: | |
10940 | * super : imsm internal array info | |
10941 | * info : general array info | |
10942 | * Returns: | |
10943 | * 0 : success (or there is no data to recover) | |
10944 | * 1 : fail | |
10945 | ******************************************************************************/ | |
10946 | int recover_backup_imsm(struct supertype *st, struct mdinfo *info) | |
10947 | { | |
10948 | struct intel_super *super = st->sb; | |
10949 | struct migr_record *migr_rec = super->migr_rec; | |
594dc1b8 | 10950 | struct imsm_map *map_dest; |
276d77db AK |
10951 | struct intel_dev *id = NULL; |
10952 | unsigned long long read_offset; | |
10953 | unsigned long long write_offset; | |
10954 | unsigned unit_len; | |
10955 | int *targets = NULL; | |
10956 | int new_disks, i, err; | |
10957 | char *buf = NULL; | |
10958 | int retval = 1; | |
f36a9ecd | 10959 | unsigned int sector_size = super->sector_size; |
9f421827 PB |
10960 | unsigned long curr_migr_unit = current_migr_unit(migr_rec); |
10961 | unsigned long num_migr_units = get_num_migr_units(migr_rec); | |
276d77db | 10962 | char buffer[20]; |
6c3560c0 | 10963 | int skipped_disks = 0; |
276d77db AK |
10964 | |
10965 | err = sysfs_get_str(info, NULL, "array_state", (char *)buffer, 20); | |
10966 | if (err < 1) | |
10967 | return 1; | |
10968 | ||
10969 | /* recover data only during assemblation */ | |
10970 | if (strncmp(buffer, "inactive", 8) != 0) | |
10971 | return 0; | |
10972 | /* no data to recover */ | |
10973 | if (__le32_to_cpu(migr_rec->rec_status) == UNIT_SRC_NORMAL) | |
10974 | return 0; | |
10975 | if (curr_migr_unit >= num_migr_units) | |
10976 | return 1; | |
10977 | ||
10978 | /* find device during reshape */ | |
10979 | for (id = super->devlist; id; id = id->next) | |
10980 | if (is_gen_migration(id->dev)) | |
10981 | break; | |
10982 | if (id == NULL) | |
10983 | return 1; | |
10984 | ||
238c0a71 | 10985 | map_dest = get_imsm_map(id->dev, MAP_0); |
276d77db AK |
10986 | new_disks = map_dest->num_members; |
10987 | ||
9f421827 | 10988 | read_offset = migr_chkp_area_pba(migr_rec) * 512; |
276d77db | 10989 | |
9f421827 | 10990 | write_offset = (migr_dest_1st_member_lba(migr_rec) + |
5551b113 | 10991 | pba_of_lba0(map_dest)) * 512; |
276d77db AK |
10992 | |
10993 | unit_len = __le32_to_cpu(migr_rec->dest_depth_per_unit) * 512; | |
f36a9ecd | 10994 | if (posix_memalign((void **)&buf, sector_size, unit_len) != 0) |
276d77db | 10995 | goto abort; |
503975b9 | 10996 | targets = xcalloc(new_disks, sizeof(int)); |
276d77db | 10997 | |
9a717282 | 10998 | if (open_backup_targets(info, new_disks, targets, super, id->dev)) { |
e7b84f9d | 10999 | pr_err("Cannot open some devices belonging to array.\n"); |
f627f5ad AK |
11000 | goto abort; |
11001 | } | |
276d77db AK |
11002 | |
11003 | for (i = 0; i < new_disks; i++) { | |
6c3560c0 AK |
11004 | if (targets[i] < 0) { |
11005 | skipped_disks++; | |
11006 | continue; | |
11007 | } | |
276d77db | 11008 | if (lseek64(targets[i], read_offset, SEEK_SET) < 0) { |
e7b84f9d N |
11009 | pr_err("Cannot seek to block: %s\n", |
11010 | strerror(errno)); | |
137debce AK |
11011 | skipped_disks++; |
11012 | continue; | |
276d77db | 11013 | } |
9ec11d1a | 11014 | if ((unsigned)read(targets[i], buf, unit_len) != unit_len) { |
e7b84f9d N |
11015 | pr_err("Cannot read copy area block: %s\n", |
11016 | strerror(errno)); | |
137debce AK |
11017 | skipped_disks++; |
11018 | continue; | |
276d77db AK |
11019 | } |
11020 | if (lseek64(targets[i], write_offset, SEEK_SET) < 0) { | |
e7b84f9d N |
11021 | pr_err("Cannot seek to block: %s\n", |
11022 | strerror(errno)); | |
137debce AK |
11023 | skipped_disks++; |
11024 | continue; | |
276d77db | 11025 | } |
9ec11d1a | 11026 | if ((unsigned)write(targets[i], buf, unit_len) != unit_len) { |
e7b84f9d N |
11027 | pr_err("Cannot restore block: %s\n", |
11028 | strerror(errno)); | |
137debce AK |
11029 | skipped_disks++; |
11030 | continue; | |
276d77db AK |
11031 | } |
11032 | } | |
11033 | ||
137debce AK |
11034 | if (skipped_disks > imsm_get_allowed_degradation(info->new_level, |
11035 | new_disks, | |
11036 | super, | |
11037 | id->dev)) { | |
7a862a02 | 11038 | pr_err("Cannot restore data from backup. Too many failed disks\n"); |
6c3560c0 AK |
11039 | goto abort; |
11040 | } | |
11041 | ||
befb629b AK |
11042 | if (save_checkpoint_imsm(st, info, UNIT_SRC_NORMAL)) { |
11043 | /* ignore error == 2, this can mean end of reshape here | |
11044 | */ | |
7a862a02 | 11045 | dprintf("imsm: Cannot write checkpoint to migration record (UNIT_SRC_NORMAL) during restart\n"); |
befb629b | 11046 | } else |
276d77db | 11047 | retval = 0; |
276d77db AK |
11048 | |
11049 | abort: | |
11050 | if (targets) { | |
11051 | for (i = 0; i < new_disks; i++) | |
11052 | if (targets[i]) | |
11053 | close(targets[i]); | |
11054 | free(targets); | |
11055 | } | |
11056 | free(buf); | |
11057 | return retval; | |
11058 | } | |
11059 | ||
2cda7640 ML |
11060 | static char disk_by_path[] = "/dev/disk/by-path/"; |
11061 | ||
11062 | static const char *imsm_get_disk_controller_domain(const char *path) | |
11063 | { | |
2cda7640 | 11064 | char disk_path[PATH_MAX]; |
96234762 LM |
11065 | char *drv=NULL; |
11066 | struct stat st; | |
2cda7640 | 11067 | |
6d8d290a | 11068 | strcpy(disk_path, disk_by_path); |
96234762 LM |
11069 | strncat(disk_path, path, PATH_MAX - strlen(disk_path) - 1); |
11070 | if (stat(disk_path, &st) == 0) { | |
11071 | struct sys_dev* hba; | |
594dc1b8 | 11072 | char *path; |
96234762 LM |
11073 | |
11074 | path = devt_to_devpath(st.st_rdev); | |
11075 | if (path == NULL) | |
11076 | return "unknown"; | |
11077 | hba = find_disk_attached_hba(-1, path); | |
11078 | if (hba && hba->type == SYS_DEV_SAS) | |
11079 | drv = "isci"; | |
11080 | else if (hba && hba->type == SYS_DEV_SATA) | |
11081 | drv = "ahci"; | |
c6839718 MT |
11082 | else if (hba && hba->type == SYS_DEV_VMD) |
11083 | drv = "vmd"; | |
11084 | else if (hba && hba->type == SYS_DEV_NVME) | |
11085 | drv = "nvme"; | |
1011e834 | 11086 | else |
96234762 LM |
11087 | drv = "unknown"; |
11088 | dprintf("path: %s hba: %s attached: %s\n", | |
11089 | path, (hba) ? hba->path : "NULL", drv); | |
11090 | free(path); | |
2cda7640 | 11091 | } |
96234762 | 11092 | return drv; |
2cda7640 ML |
11093 | } |
11094 | ||
4dd2df09 | 11095 | static char *imsm_find_array_devnm_by_subdev(int subdev, char *container) |
78b10e66 | 11096 | { |
4dd2df09 | 11097 | static char devnm[32]; |
78b10e66 N |
11098 | char subdev_name[20]; |
11099 | struct mdstat_ent *mdstat; | |
11100 | ||
11101 | sprintf(subdev_name, "%d", subdev); | |
11102 | mdstat = mdstat_by_subdev(subdev_name, container); | |
11103 | if (!mdstat) | |
4dd2df09 | 11104 | return NULL; |
78b10e66 | 11105 | |
4dd2df09 | 11106 | strcpy(devnm, mdstat->devnm); |
78b10e66 | 11107 | free_mdstat(mdstat); |
4dd2df09 | 11108 | return devnm; |
78b10e66 N |
11109 | } |
11110 | ||
11111 | static int imsm_reshape_is_allowed_on_container(struct supertype *st, | |
11112 | struct geo_params *geo, | |
fbf3d202 AK |
11113 | int *old_raid_disks, |
11114 | int direction) | |
78b10e66 | 11115 | { |
694575e7 KW |
11116 | /* currently we only support increasing the number of devices |
11117 | * for a container. This increases the number of device for each | |
11118 | * member array. They must all be RAID0 or RAID5. | |
11119 | */ | |
78b10e66 N |
11120 | int ret_val = 0; |
11121 | struct mdinfo *info, *member; | |
11122 | int devices_that_can_grow = 0; | |
11123 | ||
7a862a02 | 11124 | dprintf("imsm: imsm_reshape_is_allowed_on_container(ENTER): st->devnm = (%s)\n", st->devnm); |
78b10e66 | 11125 | |
d04f65f4 | 11126 | if (geo->size > 0 || |
78b10e66 N |
11127 | geo->level != UnSet || |
11128 | geo->layout != UnSet || | |
11129 | geo->chunksize != 0 || | |
11130 | geo->raid_disks == UnSet) { | |
7a862a02 | 11131 | dprintf("imsm: Container operation is allowed for raid disks number change only.\n"); |
78b10e66 N |
11132 | return ret_val; |
11133 | } | |
11134 | ||
fbf3d202 | 11135 | if (direction == ROLLBACK_METADATA_CHANGES) { |
7a862a02 | 11136 | dprintf("imsm: Metadata changes rollback is not supported for container operation.\n"); |
fbf3d202 AK |
11137 | return ret_val; |
11138 | } | |
11139 | ||
78b10e66 N |
11140 | info = container_content_imsm(st, NULL); |
11141 | for (member = info; member; member = member->next) { | |
4dd2df09 | 11142 | char *result; |
78b10e66 N |
11143 | |
11144 | dprintf("imsm: checking device_num: %i\n", | |
11145 | member->container_member); | |
11146 | ||
d7d205bd | 11147 | if (geo->raid_disks <= member->array.raid_disks) { |
78b10e66 N |
11148 | /* we work on container for Online Capacity Expansion |
11149 | * only so raid_disks has to grow | |
11150 | */ | |
7a862a02 | 11151 | dprintf("imsm: for container operation raid disks increase is required\n"); |
78b10e66 N |
11152 | break; |
11153 | } | |
11154 | ||
089f9d79 | 11155 | if (info->array.level != 0 && info->array.level != 5) { |
78b10e66 N |
11156 | /* we cannot use this container with other raid level |
11157 | */ | |
7a862a02 | 11158 | dprintf("imsm: for container operation wrong raid level (%i) detected\n", |
78b10e66 N |
11159 | info->array.level); |
11160 | break; | |
11161 | } else { | |
11162 | /* check for platform support | |
11163 | * for this raid level configuration | |
11164 | */ | |
11165 | struct intel_super *super = st->sb; | |
11166 | if (!is_raid_level_supported(super->orom, | |
11167 | member->array.level, | |
11168 | geo->raid_disks)) { | |
7a862a02 | 11169 | dprintf("platform does not support raid%d with %d disk%s\n", |
78b10e66 N |
11170 | info->array.level, |
11171 | geo->raid_disks, | |
11172 | geo->raid_disks > 1 ? "s" : ""); | |
11173 | break; | |
11174 | } | |
2a4a08e7 AK |
11175 | /* check if component size is aligned to chunk size |
11176 | */ | |
11177 | if (info->component_size % | |
11178 | (info->array.chunk_size/512)) { | |
7a862a02 | 11179 | dprintf("Component size is not aligned to chunk size\n"); |
2a4a08e7 AK |
11180 | break; |
11181 | } | |
78b10e66 N |
11182 | } |
11183 | ||
11184 | if (*old_raid_disks && | |
11185 | info->array.raid_disks != *old_raid_disks) | |
11186 | break; | |
11187 | *old_raid_disks = info->array.raid_disks; | |
11188 | ||
11189 | /* All raid5 and raid0 volumes in container | |
11190 | * have to be ready for Online Capacity Expansion | |
11191 | * so they need to be assembled. We have already | |
11192 | * checked that no recovery etc is happening. | |
11193 | */ | |
4dd2df09 N |
11194 | result = imsm_find_array_devnm_by_subdev(member->container_member, |
11195 | st->container_devnm); | |
11196 | if (result == NULL) { | |
78b10e66 N |
11197 | dprintf("imsm: cannot find array\n"); |
11198 | break; | |
11199 | } | |
11200 | devices_that_can_grow++; | |
11201 | } | |
11202 | sysfs_free(info); | |
11203 | if (!member && devices_that_can_grow) | |
11204 | ret_val = 1; | |
11205 | ||
11206 | if (ret_val) | |
1ade5cc1 | 11207 | dprintf("Container operation allowed\n"); |
78b10e66 | 11208 | else |
1ade5cc1 | 11209 | dprintf("Error: %i\n", ret_val); |
78b10e66 N |
11210 | |
11211 | return ret_val; | |
11212 | } | |
11213 | ||
11214 | /* Function: get_spares_for_grow | |
11215 | * Description: Allocates memory and creates list of spare devices | |
1011e834 | 11216 | * avaliable in container. Checks if spare drive size is acceptable. |
78b10e66 N |
11217 | * Parameters: Pointer to the supertype structure |
11218 | * Returns: Pointer to the list of spare devices (mdinfo structure) on success, | |
1011e834 | 11219 | * NULL if fail |
78b10e66 N |
11220 | */ |
11221 | static struct mdinfo *get_spares_for_grow(struct supertype *st) | |
11222 | { | |
fbfdcb06 AO |
11223 | struct spare_criteria sc; |
11224 | ||
11225 | get_spare_criteria_imsm(st, &sc); | |
11226 | return container_choose_spares(st, &sc, NULL, NULL, NULL, 0); | |
78b10e66 N |
11227 | } |
11228 | ||
11229 | /****************************************************************************** | |
11230 | * function: imsm_create_metadata_update_for_reshape | |
11231 | * Function creates update for whole IMSM container. | |
11232 | * | |
11233 | ******************************************************************************/ | |
11234 | static int imsm_create_metadata_update_for_reshape( | |
11235 | struct supertype *st, | |
11236 | struct geo_params *geo, | |
11237 | int old_raid_disks, | |
11238 | struct imsm_update_reshape **updatep) | |
11239 | { | |
11240 | struct intel_super *super = st->sb; | |
11241 | struct imsm_super *mpb = super->anchor; | |
594dc1b8 JS |
11242 | int update_memory_size; |
11243 | struct imsm_update_reshape *u; | |
11244 | struct mdinfo *spares; | |
78b10e66 | 11245 | int i; |
594dc1b8 | 11246 | int delta_disks; |
bbd24d86 | 11247 | struct mdinfo *dev; |
78b10e66 | 11248 | |
1ade5cc1 | 11249 | dprintf("(enter) raid_disks = %i\n", geo->raid_disks); |
78b10e66 N |
11250 | |
11251 | delta_disks = geo->raid_disks - old_raid_disks; | |
11252 | ||
11253 | /* size of all update data without anchor */ | |
11254 | update_memory_size = sizeof(struct imsm_update_reshape); | |
11255 | ||
11256 | /* now add space for spare disks that we need to add. */ | |
11257 | update_memory_size += sizeof(u->new_disks[0]) * (delta_disks - 1); | |
11258 | ||
503975b9 | 11259 | u = xcalloc(1, update_memory_size); |
78b10e66 N |
11260 | u->type = update_reshape_container_disks; |
11261 | u->old_raid_disks = old_raid_disks; | |
11262 | u->new_raid_disks = geo->raid_disks; | |
11263 | ||
11264 | /* now get spare disks list | |
11265 | */ | |
11266 | spares = get_spares_for_grow(st); | |
11267 | ||
d7be7d87 | 11268 | if (spares == NULL || delta_disks > spares->array.spare_disks) { |
7a862a02 | 11269 | pr_err("imsm: ERROR: Cannot get spare devices for %s.\n", geo->dev_name); |
e4c72d1d | 11270 | i = -1; |
78b10e66 N |
11271 | goto abort; |
11272 | } | |
11273 | ||
11274 | /* we have got spares | |
11275 | * update disk list in imsm_disk list table in anchor | |
11276 | */ | |
11277 | dprintf("imsm: %i spares are available.\n\n", | |
11278 | spares->array.spare_disks); | |
11279 | ||
bbd24d86 | 11280 | dev = spares->devs; |
78b10e66 | 11281 | for (i = 0; i < delta_disks; i++) { |
78b10e66 N |
11282 | struct dl *dl; |
11283 | ||
bbd24d86 AK |
11284 | if (dev == NULL) |
11285 | break; | |
78b10e66 N |
11286 | u->new_disks[i] = makedev(dev->disk.major, |
11287 | dev->disk.minor); | |
11288 | dl = get_disk_super(super, dev->disk.major, dev->disk.minor); | |
ee4beede AK |
11289 | dl->index = mpb->num_disks; |
11290 | mpb->num_disks++; | |
bbd24d86 | 11291 | dev = dev->next; |
78b10e66 | 11292 | } |
78b10e66 N |
11293 | |
11294 | abort: | |
11295 | /* free spares | |
11296 | */ | |
11297 | sysfs_free(spares); | |
11298 | ||
d677e0b8 | 11299 | dprintf("imsm: reshape update preparation :"); |
78b10e66 | 11300 | if (i == delta_disks) { |
1ade5cc1 | 11301 | dprintf_cont(" OK\n"); |
78b10e66 N |
11302 | *updatep = u; |
11303 | return update_memory_size; | |
11304 | } | |
11305 | free(u); | |
1ade5cc1 | 11306 | dprintf_cont(" Error\n"); |
78b10e66 N |
11307 | |
11308 | return 0; | |
11309 | } | |
11310 | ||
f3871fdc AK |
11311 | /****************************************************************************** |
11312 | * function: imsm_create_metadata_update_for_size_change() | |
11313 | * Creates update for IMSM array for array size change. | |
11314 | * | |
11315 | ******************************************************************************/ | |
11316 | static int imsm_create_metadata_update_for_size_change( | |
11317 | struct supertype *st, | |
11318 | struct geo_params *geo, | |
11319 | struct imsm_update_size_change **updatep) | |
11320 | { | |
11321 | struct intel_super *super = st->sb; | |
594dc1b8 JS |
11322 | int update_memory_size; |
11323 | struct imsm_update_size_change *u; | |
f3871fdc | 11324 | |
1ade5cc1 | 11325 | dprintf("(enter) New size = %llu\n", geo->size); |
f3871fdc AK |
11326 | |
11327 | /* size of all update data without anchor */ | |
11328 | update_memory_size = sizeof(struct imsm_update_size_change); | |
11329 | ||
503975b9 | 11330 | u = xcalloc(1, update_memory_size); |
f3871fdc AK |
11331 | u->type = update_size_change; |
11332 | u->subdev = super->current_vol; | |
11333 | u->new_size = geo->size; | |
11334 | ||
11335 | dprintf("imsm: reshape update preparation : OK\n"); | |
11336 | *updatep = u; | |
11337 | ||
11338 | return update_memory_size; | |
11339 | } | |
11340 | ||
48c5303a PC |
11341 | /****************************************************************************** |
11342 | * function: imsm_create_metadata_update_for_migration() | |
11343 | * Creates update for IMSM array. | |
11344 | * | |
11345 | ******************************************************************************/ | |
11346 | static int imsm_create_metadata_update_for_migration( | |
11347 | struct supertype *st, | |
11348 | struct geo_params *geo, | |
11349 | struct imsm_update_reshape_migration **updatep) | |
11350 | { | |
11351 | struct intel_super *super = st->sb; | |
594dc1b8 JS |
11352 | int update_memory_size; |
11353 | struct imsm_update_reshape_migration *u; | |
48c5303a PC |
11354 | struct imsm_dev *dev; |
11355 | int previous_level = -1; | |
11356 | ||
1ade5cc1 | 11357 | dprintf("(enter) New Level = %i\n", geo->level); |
48c5303a PC |
11358 | |
11359 | /* size of all update data without anchor */ | |
11360 | update_memory_size = sizeof(struct imsm_update_reshape_migration); | |
11361 | ||
503975b9 | 11362 | u = xcalloc(1, update_memory_size); |
48c5303a PC |
11363 | u->type = update_reshape_migration; |
11364 | u->subdev = super->current_vol; | |
11365 | u->new_level = geo->level; | |
11366 | u->new_layout = geo->layout; | |
11367 | u->new_raid_disks = u->old_raid_disks = geo->raid_disks; | |
11368 | u->new_disks[0] = -1; | |
4bba0439 | 11369 | u->new_chunksize = -1; |
48c5303a PC |
11370 | |
11371 | dev = get_imsm_dev(super, u->subdev); | |
11372 | if (dev) { | |
11373 | struct imsm_map *map; | |
11374 | ||
238c0a71 | 11375 | map = get_imsm_map(dev, MAP_0); |
4bba0439 PC |
11376 | if (map) { |
11377 | int current_chunk_size = | |
11378 | __le16_to_cpu(map->blocks_per_strip) / 2; | |
11379 | ||
11380 | if (geo->chunksize != current_chunk_size) { | |
11381 | u->new_chunksize = geo->chunksize / 1024; | |
7a862a02 | 11382 | dprintf("imsm: chunk size change from %i to %i\n", |
4bba0439 PC |
11383 | current_chunk_size, u->new_chunksize); |
11384 | } | |
48c5303a | 11385 | previous_level = map->raid_level; |
4bba0439 | 11386 | } |
48c5303a | 11387 | } |
089f9d79 | 11388 | if (geo->level == 5 && previous_level == 0) { |
48c5303a PC |
11389 | struct mdinfo *spares = NULL; |
11390 | ||
11391 | u->new_raid_disks++; | |
11392 | spares = get_spares_for_grow(st); | |
089f9d79 | 11393 | if (spares == NULL || spares->array.spare_disks < 1) { |
48c5303a PC |
11394 | free(u); |
11395 | sysfs_free(spares); | |
11396 | update_memory_size = 0; | |
565cc99e | 11397 | pr_err("cannot get spare device for requested migration\n"); |
48c5303a PC |
11398 | return 0; |
11399 | } | |
11400 | sysfs_free(spares); | |
11401 | } | |
11402 | dprintf("imsm: reshape update preparation : OK\n"); | |
11403 | *updatep = u; | |
11404 | ||
11405 | return update_memory_size; | |
11406 | } | |
11407 | ||
8dd70bce AK |
11408 | static void imsm_update_metadata_locally(struct supertype *st, |
11409 | void *buf, int len) | |
11410 | { | |
11411 | struct metadata_update mu; | |
11412 | ||
11413 | mu.buf = buf; | |
11414 | mu.len = len; | |
11415 | mu.space = NULL; | |
11416 | mu.space_list = NULL; | |
11417 | mu.next = NULL; | |
5fe6f031 N |
11418 | if (imsm_prepare_update(st, &mu)) |
11419 | imsm_process_update(st, &mu); | |
8dd70bce AK |
11420 | |
11421 | while (mu.space_list) { | |
11422 | void **space = mu.space_list; | |
11423 | mu.space_list = *space; | |
11424 | free(space); | |
11425 | } | |
11426 | } | |
78b10e66 | 11427 | |
471bceb6 | 11428 | /*************************************************************************** |
694575e7 | 11429 | * Function: imsm_analyze_change |
471bceb6 | 11430 | * Description: Function analyze change for single volume |
1011e834 | 11431 | * and validate if transition is supported |
fbf3d202 AK |
11432 | * Parameters: Geometry parameters, supertype structure, |
11433 | * metadata change direction (apply/rollback) | |
694575e7 | 11434 | * Returns: Operation type code on success, -1 if fail |
471bceb6 KW |
11435 | ****************************************************************************/ |
11436 | enum imsm_reshape_type imsm_analyze_change(struct supertype *st, | |
fbf3d202 AK |
11437 | struct geo_params *geo, |
11438 | int direction) | |
694575e7 | 11439 | { |
471bceb6 KW |
11440 | struct mdinfo info; |
11441 | int change = -1; | |
11442 | int check_devs = 0; | |
c21e737b | 11443 | int chunk; |
67a2db32 AK |
11444 | /* number of added/removed disks in operation result */ |
11445 | int devNumChange = 0; | |
11446 | /* imsm compatible layout value for array geometry verification */ | |
11447 | int imsm_layout = -1; | |
7abc9871 AK |
11448 | int data_disks; |
11449 | struct imsm_dev *dev; | |
9529d343 | 11450 | struct imsm_map *map; |
7abc9871 | 11451 | struct intel_super *super; |
d04f65f4 | 11452 | unsigned long long current_size; |
65d38cca | 11453 | unsigned long long free_size; |
d04f65f4 | 11454 | unsigned long long max_size; |
65d38cca | 11455 | int rv; |
471bceb6 KW |
11456 | |
11457 | getinfo_super_imsm_volume(st, &info, NULL); | |
089f9d79 JS |
11458 | if (geo->level != info.array.level && geo->level >= 0 && |
11459 | geo->level != UnSet) { | |
471bceb6 KW |
11460 | switch (info.array.level) { |
11461 | case 0: | |
11462 | if (geo->level == 5) { | |
b5347799 | 11463 | change = CH_MIGRATION; |
e13ce846 | 11464 | if (geo->layout != ALGORITHM_LEFT_ASYMMETRIC) { |
7a862a02 | 11465 | pr_err("Error. Requested Layout not supported (left-asymmetric layout is supported only)!\n"); |
e13ce846 AK |
11466 | change = -1; |
11467 | goto analyse_change_exit; | |
11468 | } | |
67a2db32 | 11469 | imsm_layout = geo->layout; |
471bceb6 | 11470 | check_devs = 1; |
e91a3bad LM |
11471 | devNumChange = 1; /* parity disk added */ |
11472 | } else if (geo->level == 10) { | |
471bceb6 KW |
11473 | change = CH_TAKEOVER; |
11474 | check_devs = 1; | |
e91a3bad | 11475 | devNumChange = 2; /* two mirrors added */ |
67a2db32 | 11476 | imsm_layout = 0x102; /* imsm supported layout */ |
471bceb6 | 11477 | } |
dfe77a9e KW |
11478 | break; |
11479 | case 1: | |
471bceb6 KW |
11480 | case 10: |
11481 | if (geo->level == 0) { | |
11482 | change = CH_TAKEOVER; | |
11483 | check_devs = 1; | |
e91a3bad | 11484 | devNumChange = -(geo->raid_disks/2); |
67a2db32 | 11485 | imsm_layout = 0; /* imsm raid0 layout */ |
471bceb6 KW |
11486 | } |
11487 | break; | |
11488 | } | |
11489 | if (change == -1) { | |
7a862a02 | 11490 | pr_err("Error. Level Migration from %d to %d not supported!\n", |
e7b84f9d | 11491 | info.array.level, geo->level); |
471bceb6 KW |
11492 | goto analyse_change_exit; |
11493 | } | |
11494 | } else | |
11495 | geo->level = info.array.level; | |
11496 | ||
089f9d79 JS |
11497 | if (geo->layout != info.array.layout && |
11498 | (geo->layout != UnSet && geo->layout != -1)) { | |
b5347799 | 11499 | change = CH_MIGRATION; |
089f9d79 JS |
11500 | if (info.array.layout == 0 && info.array.level == 5 && |
11501 | geo->layout == 5) { | |
471bceb6 | 11502 | /* reshape 5 -> 4 */ |
089f9d79 JS |
11503 | } else if (info.array.layout == 5 && info.array.level == 5 && |
11504 | geo->layout == 0) { | |
471bceb6 KW |
11505 | /* reshape 4 -> 5 */ |
11506 | geo->layout = 0; | |
11507 | geo->level = 5; | |
11508 | } else { | |
7a862a02 | 11509 | pr_err("Error. Layout Migration from %d to %d not supported!\n", |
e7b84f9d | 11510 | info.array.layout, geo->layout); |
471bceb6 KW |
11511 | change = -1; |
11512 | goto analyse_change_exit; | |
11513 | } | |
67a2db32 | 11514 | } else { |
471bceb6 | 11515 | geo->layout = info.array.layout; |
67a2db32 AK |
11516 | if (imsm_layout == -1) |
11517 | imsm_layout = info.array.layout; | |
11518 | } | |
471bceb6 | 11519 | |
089f9d79 JS |
11520 | if (geo->chunksize > 0 && geo->chunksize != UnSet && |
11521 | geo->chunksize != info.array.chunk_size) { | |
2d2b0eb7 MD |
11522 | if (info.array.level == 10) { |
11523 | pr_err("Error. Chunk size change for RAID 10 is not supported.\n"); | |
11524 | change = -1; | |
11525 | goto analyse_change_exit; | |
1e9b2c3f PB |
11526 | } else if (info.component_size % (geo->chunksize/512)) { |
11527 | pr_err("New chunk size (%dK) does not evenly divide device size (%lluk). Aborting...\n", | |
11528 | geo->chunksize/1024, info.component_size/2); | |
11529 | change = -1; | |
11530 | goto analyse_change_exit; | |
2d2b0eb7 | 11531 | } |
b5347799 | 11532 | change = CH_MIGRATION; |
2d2b0eb7 | 11533 | } else { |
471bceb6 | 11534 | geo->chunksize = info.array.chunk_size; |
2d2b0eb7 | 11535 | } |
471bceb6 | 11536 | |
c21e737b | 11537 | chunk = geo->chunksize / 1024; |
7abc9871 AK |
11538 | |
11539 | super = st->sb; | |
11540 | dev = get_imsm_dev(super, super->current_vol); | |
9529d343 MD |
11541 | map = get_imsm_map(dev, MAP_0); |
11542 | data_disks = imsm_num_data_members(map); | |
c41e00b2 | 11543 | /* compute current size per disk member |
7abc9871 | 11544 | */ |
c41e00b2 AK |
11545 | current_size = info.custom_array_size / data_disks; |
11546 | ||
089f9d79 | 11547 | if (geo->size > 0 && geo->size != MAX_SIZE) { |
c41e00b2 AK |
11548 | /* align component size |
11549 | */ | |
3e684231 | 11550 | geo->size = imsm_component_size_alignment_check( |
c41e00b2 | 11551 | get_imsm_raid_level(dev->vol.map), |
f36a9ecd | 11552 | chunk * 1024, super->sector_size, |
c41e00b2 | 11553 | geo->size * 2); |
65d0b4ce | 11554 | if (geo->size == 0) { |
7a862a02 | 11555 | pr_err("Error. Size expansion is supported only (current size is %llu, requested size /rounded/ is 0).\n", |
65d0b4ce LD |
11556 | current_size); |
11557 | goto analyse_change_exit; | |
11558 | } | |
c41e00b2 | 11559 | } |
7abc9871 | 11560 | |
089f9d79 | 11561 | if (current_size != geo->size && geo->size > 0) { |
7abc9871 | 11562 | if (change != -1) { |
7a862a02 | 11563 | pr_err("Error. Size change should be the only one at a time.\n"); |
7abc9871 AK |
11564 | change = -1; |
11565 | goto analyse_change_exit; | |
11566 | } | |
11567 | if ((super->current_vol + 1) != super->anchor->num_raid_devs) { | |
7a862a02 | 11568 | pr_err("Error. The last volume in container can be expanded only (%i/%s).\n", |
4dd2df09 | 11569 | super->current_vol, st->devnm); |
7abc9871 AK |
11570 | goto analyse_change_exit; |
11571 | } | |
65d38cca LD |
11572 | /* check the maximum available size |
11573 | */ | |
11574 | rv = imsm_get_free_size(st, dev->vol.map->num_members, | |
11575 | 0, chunk, &free_size); | |
11576 | if (rv == 0) | |
11577 | /* Cannot find maximum available space | |
11578 | */ | |
11579 | max_size = 0; | |
11580 | else { | |
11581 | max_size = free_size + current_size; | |
11582 | /* align component size | |
11583 | */ | |
3e684231 | 11584 | max_size = imsm_component_size_alignment_check( |
65d38cca | 11585 | get_imsm_raid_level(dev->vol.map), |
f36a9ecd | 11586 | chunk * 1024, super->sector_size, |
65d38cca LD |
11587 | max_size); |
11588 | } | |
d04f65f4 | 11589 | if (geo->size == MAX_SIZE) { |
b130333f AK |
11590 | /* requested size change to the maximum available size |
11591 | */ | |
65d38cca | 11592 | if (max_size == 0) { |
7a862a02 | 11593 | pr_err("Error. Cannot find maximum available space.\n"); |
b130333f AK |
11594 | change = -1; |
11595 | goto analyse_change_exit; | |
65d38cca LD |
11596 | } else |
11597 | geo->size = max_size; | |
c41e00b2 | 11598 | } |
b130333f | 11599 | |
681b7ae2 | 11600 | if (direction == ROLLBACK_METADATA_CHANGES) { |
fbf3d202 AK |
11601 | /* accept size for rollback only |
11602 | */ | |
11603 | } else { | |
11604 | /* round size due to metadata compatibility | |
11605 | */ | |
11606 | geo->size = (geo->size >> SECT_PER_MB_SHIFT) | |
11607 | << SECT_PER_MB_SHIFT; | |
11608 | dprintf("Prepare update for size change to %llu\n", | |
11609 | geo->size ); | |
11610 | if (current_size >= geo->size) { | |
7a862a02 | 11611 | pr_err("Error. Size expansion is supported only (current size is %llu, requested size /rounded/ is %llu).\n", |
e7b84f9d | 11612 | current_size, geo->size); |
fbf3d202 AK |
11613 | goto analyse_change_exit; |
11614 | } | |
65d38cca | 11615 | if (max_size && geo->size > max_size) { |
7a862a02 | 11616 | pr_err("Error. Requested size is larger than maximum available size (maximum available size is %llu, requested size /rounded/ is %llu).\n", |
e7b84f9d | 11617 | max_size, geo->size); |
65d38cca LD |
11618 | goto analyse_change_exit; |
11619 | } | |
7abc9871 AK |
11620 | } |
11621 | geo->size *= data_disks; | |
11622 | geo->raid_disks = dev->vol.map->num_members; | |
11623 | change = CH_ARRAY_SIZE; | |
11624 | } | |
471bceb6 KW |
11625 | if (!validate_geometry_imsm(st, |
11626 | geo->level, | |
67a2db32 | 11627 | imsm_layout, |
e91a3bad | 11628 | geo->raid_disks + devNumChange, |
c21e737b | 11629 | &chunk, |
af4348dd | 11630 | geo->size, INVALID_SECTORS, |
5308f117 | 11631 | 0, 0, info.consistency_policy, 1)) |
471bceb6 KW |
11632 | change = -1; |
11633 | ||
11634 | if (check_devs) { | |
11635 | struct intel_super *super = st->sb; | |
11636 | struct imsm_super *mpb = super->anchor; | |
11637 | ||
11638 | if (mpb->num_raid_devs > 1) { | |
7a862a02 | 11639 | pr_err("Error. Cannot perform operation on %s- for this operation it MUST be single array in container\n", |
e7b84f9d | 11640 | geo->dev_name); |
471bceb6 KW |
11641 | change = -1; |
11642 | } | |
11643 | } | |
11644 | ||
11645 | analyse_change_exit: | |
089f9d79 JS |
11646 | if (direction == ROLLBACK_METADATA_CHANGES && |
11647 | (change == CH_MIGRATION || change == CH_TAKEOVER)) { | |
7a862a02 | 11648 | dprintf("imsm: Metadata changes rollback is not supported for migration and takeover operations.\n"); |
fbf3d202 AK |
11649 | change = -1; |
11650 | } | |
471bceb6 | 11651 | return change; |
694575e7 KW |
11652 | } |
11653 | ||
bb025c2f KW |
11654 | int imsm_takeover(struct supertype *st, struct geo_params *geo) |
11655 | { | |
11656 | struct intel_super *super = st->sb; | |
11657 | struct imsm_update_takeover *u; | |
11658 | ||
503975b9 | 11659 | u = xmalloc(sizeof(struct imsm_update_takeover)); |
bb025c2f KW |
11660 | |
11661 | u->type = update_takeover; | |
11662 | u->subarray = super->current_vol; | |
11663 | ||
11664 | /* 10->0 transition */ | |
11665 | if (geo->level == 0) | |
11666 | u->direction = R10_TO_R0; | |
11667 | ||
0529c688 KW |
11668 | /* 0->10 transition */ |
11669 | if (geo->level == 10) | |
11670 | u->direction = R0_TO_R10; | |
11671 | ||
bb025c2f KW |
11672 | /* update metadata locally */ |
11673 | imsm_update_metadata_locally(st, u, | |
11674 | sizeof(struct imsm_update_takeover)); | |
11675 | /* and possibly remotely */ | |
11676 | if (st->update_tail) | |
11677 | append_metadata_update(st, u, | |
11678 | sizeof(struct imsm_update_takeover)); | |
11679 | else | |
11680 | free(u); | |
11681 | ||
11682 | return 0; | |
11683 | } | |
11684 | ||
d04f65f4 N |
11685 | static int imsm_reshape_super(struct supertype *st, unsigned long long size, |
11686 | int level, | |
78b10e66 | 11687 | int layout, int chunksize, int raid_disks, |
41784c88 | 11688 | int delta_disks, char *backup, char *dev, |
016e00f5 | 11689 | int direction, int verbose) |
78b10e66 | 11690 | { |
78b10e66 N |
11691 | int ret_val = 1; |
11692 | struct geo_params geo; | |
11693 | ||
1ade5cc1 | 11694 | dprintf("(enter)\n"); |
78b10e66 | 11695 | |
71204a50 | 11696 | memset(&geo, 0, sizeof(struct geo_params)); |
78b10e66 N |
11697 | |
11698 | geo.dev_name = dev; | |
4dd2df09 | 11699 | strcpy(geo.devnm, st->devnm); |
78b10e66 N |
11700 | geo.size = size; |
11701 | geo.level = level; | |
11702 | geo.layout = layout; | |
11703 | geo.chunksize = chunksize; | |
11704 | geo.raid_disks = raid_disks; | |
41784c88 AK |
11705 | if (delta_disks != UnSet) |
11706 | geo.raid_disks += delta_disks; | |
78b10e66 | 11707 | |
1ade5cc1 N |
11708 | dprintf("for level : %i\n", geo.level); |
11709 | dprintf("for raid_disks : %i\n", geo.raid_disks); | |
78b10e66 | 11710 | |
4dd2df09 | 11711 | if (strcmp(st->container_devnm, st->devnm) == 0) { |
694575e7 KW |
11712 | /* On container level we can only increase number of devices. */ |
11713 | dprintf("imsm: info: Container operation\n"); | |
78b10e66 | 11714 | int old_raid_disks = 0; |
6dc0be30 | 11715 | |
78b10e66 | 11716 | if (imsm_reshape_is_allowed_on_container( |
fbf3d202 | 11717 | st, &geo, &old_raid_disks, direction)) { |
78b10e66 N |
11718 | struct imsm_update_reshape *u = NULL; |
11719 | int len; | |
11720 | ||
11721 | len = imsm_create_metadata_update_for_reshape( | |
11722 | st, &geo, old_raid_disks, &u); | |
11723 | ||
ed08d51c AK |
11724 | if (len <= 0) { |
11725 | dprintf("imsm: Cannot prepare update\n"); | |
11726 | goto exit_imsm_reshape_super; | |
11727 | } | |
11728 | ||
8dd70bce AK |
11729 | ret_val = 0; |
11730 | /* update metadata locally */ | |
11731 | imsm_update_metadata_locally(st, u, len); | |
11732 | /* and possibly remotely */ | |
11733 | if (st->update_tail) | |
11734 | append_metadata_update(st, u, len); | |
11735 | else | |
ed08d51c | 11736 | free(u); |
8dd70bce | 11737 | |
694575e7 | 11738 | } else { |
7a862a02 | 11739 | pr_err("(imsm) Operation is not allowed on this container\n"); |
694575e7 KW |
11740 | } |
11741 | } else { | |
11742 | /* On volume level we support following operations | |
471bceb6 KW |
11743 | * - takeover: raid10 -> raid0; raid0 -> raid10 |
11744 | * - chunk size migration | |
11745 | * - migration: raid5 -> raid0; raid0 -> raid5 | |
11746 | */ | |
11747 | struct intel_super *super = st->sb; | |
11748 | struct intel_dev *dev = super->devlist; | |
4dd2df09 | 11749 | int change; |
694575e7 | 11750 | dprintf("imsm: info: Volume operation\n"); |
471bceb6 KW |
11751 | /* find requested device */ |
11752 | while (dev) { | |
1011e834 | 11753 | char *devnm = |
4dd2df09 N |
11754 | imsm_find_array_devnm_by_subdev( |
11755 | dev->index, st->container_devnm); | |
11756 | if (devnm && strcmp(devnm, geo.devnm) == 0) | |
471bceb6 KW |
11757 | break; |
11758 | dev = dev->next; | |
11759 | } | |
11760 | if (dev == NULL) { | |
4dd2df09 N |
11761 | pr_err("Cannot find %s (%s) subarray\n", |
11762 | geo.dev_name, geo.devnm); | |
471bceb6 KW |
11763 | goto exit_imsm_reshape_super; |
11764 | } | |
11765 | super->current_vol = dev->index; | |
fbf3d202 | 11766 | change = imsm_analyze_change(st, &geo, direction); |
694575e7 | 11767 | switch (change) { |
471bceb6 | 11768 | case CH_TAKEOVER: |
bb025c2f | 11769 | ret_val = imsm_takeover(st, &geo); |
694575e7 | 11770 | break; |
48c5303a PC |
11771 | case CH_MIGRATION: { |
11772 | struct imsm_update_reshape_migration *u = NULL; | |
11773 | int len = | |
11774 | imsm_create_metadata_update_for_migration( | |
11775 | st, &geo, &u); | |
11776 | if (len < 1) { | |
7a862a02 | 11777 | dprintf("imsm: Cannot prepare update\n"); |
48c5303a PC |
11778 | break; |
11779 | } | |
471bceb6 | 11780 | ret_val = 0; |
48c5303a PC |
11781 | /* update metadata locally */ |
11782 | imsm_update_metadata_locally(st, u, len); | |
11783 | /* and possibly remotely */ | |
11784 | if (st->update_tail) | |
11785 | append_metadata_update(st, u, len); | |
11786 | else | |
11787 | free(u); | |
11788 | } | |
11789 | break; | |
7abc9871 | 11790 | case CH_ARRAY_SIZE: { |
f3871fdc AK |
11791 | struct imsm_update_size_change *u = NULL; |
11792 | int len = | |
11793 | imsm_create_metadata_update_for_size_change( | |
11794 | st, &geo, &u); | |
11795 | if (len < 1) { | |
7a862a02 | 11796 | dprintf("imsm: Cannot prepare update\n"); |
f3871fdc AK |
11797 | break; |
11798 | } | |
11799 | ret_val = 0; | |
11800 | /* update metadata locally */ | |
11801 | imsm_update_metadata_locally(st, u, len); | |
11802 | /* and possibly remotely */ | |
11803 | if (st->update_tail) | |
11804 | append_metadata_update(st, u, len); | |
11805 | else | |
11806 | free(u); | |
7abc9871 AK |
11807 | } |
11808 | break; | |
471bceb6 KW |
11809 | default: |
11810 | ret_val = 1; | |
694575e7 | 11811 | } |
694575e7 | 11812 | } |
78b10e66 | 11813 | |
ed08d51c | 11814 | exit_imsm_reshape_super: |
78b10e66 N |
11815 | dprintf("imsm: reshape_super Exit code = %i\n", ret_val); |
11816 | return ret_val; | |
11817 | } | |
2cda7640 | 11818 | |
0febb20c AO |
11819 | #define COMPLETED_OK 0 |
11820 | #define COMPLETED_NONE 1 | |
11821 | #define COMPLETED_DELAYED 2 | |
11822 | ||
11823 | static int read_completed(int fd, unsigned long long *val) | |
11824 | { | |
11825 | int ret; | |
11826 | char buf[50]; | |
11827 | ||
11828 | ret = sysfs_fd_get_str(fd, buf, 50); | |
11829 | if (ret < 0) | |
11830 | return ret; | |
11831 | ||
11832 | ret = COMPLETED_OK; | |
11833 | if (strncmp(buf, "none", 4) == 0) { | |
11834 | ret = COMPLETED_NONE; | |
11835 | } else if (strncmp(buf, "delayed", 7) == 0) { | |
11836 | ret = COMPLETED_DELAYED; | |
11837 | } else { | |
11838 | char *ep; | |
11839 | *val = strtoull(buf, &ep, 0); | |
11840 | if (ep == buf || (*ep != 0 && *ep != '\n' && *ep != ' ')) | |
11841 | ret = -1; | |
11842 | } | |
11843 | return ret; | |
11844 | } | |
11845 | ||
eee67a47 AK |
11846 | /******************************************************************************* |
11847 | * Function: wait_for_reshape_imsm | |
11848 | * Description: Function writes new sync_max value and waits until | |
11849 | * reshape process reach new position | |
11850 | * Parameters: | |
11851 | * sra : general array info | |
eee67a47 AK |
11852 | * ndata : number of disks in new array's layout |
11853 | * Returns: | |
11854 | * 0 : success, | |
11855 | * 1 : there is no reshape in progress, | |
11856 | * -1 : fail | |
11857 | ******************************************************************************/ | |
ae9f01f8 | 11858 | int wait_for_reshape_imsm(struct mdinfo *sra, int ndata) |
eee67a47 | 11859 | { |
85ca499c | 11860 | int fd = sysfs_get_fd(sra, NULL, "sync_completed"); |
df2647fa | 11861 | int retry = 3; |
eee67a47 | 11862 | unsigned long long completed; |
ae9f01f8 AK |
11863 | /* to_complete : new sync_max position */ |
11864 | unsigned long long to_complete = sra->reshape_progress; | |
11865 | unsigned long long position_to_set = to_complete / ndata; | |
eee67a47 | 11866 | |
ae9f01f8 | 11867 | if (fd < 0) { |
1ade5cc1 | 11868 | dprintf("cannot open reshape_position\n"); |
eee67a47 | 11869 | return 1; |
ae9f01f8 | 11870 | } |
eee67a47 | 11871 | |
df2647fa PB |
11872 | do { |
11873 | if (sysfs_fd_get_ll(fd, &completed) < 0) { | |
11874 | if (!retry) { | |
11875 | dprintf("cannot read reshape_position (no reshape in progres)\n"); | |
11876 | close(fd); | |
11877 | return 1; | |
11878 | } | |
11879 | usleep(30000); | |
11880 | } else | |
11881 | break; | |
11882 | } while (retry--); | |
eee67a47 | 11883 | |
85ca499c | 11884 | if (completed > position_to_set) { |
1ade5cc1 | 11885 | dprintf("wrong next position to set %llu (%llu)\n", |
85ca499c | 11886 | to_complete, position_to_set); |
ae9f01f8 AK |
11887 | close(fd); |
11888 | return -1; | |
11889 | } | |
11890 | dprintf("Position set: %llu\n", position_to_set); | |
11891 | if (sysfs_set_num(sra, NULL, "sync_max", | |
11892 | position_to_set) != 0) { | |
1ade5cc1 | 11893 | dprintf("cannot set reshape position to %llu\n", |
ae9f01f8 AK |
11894 | position_to_set); |
11895 | close(fd); | |
11896 | return -1; | |
eee67a47 AK |
11897 | } |
11898 | ||
eee67a47 | 11899 | do { |
0febb20c | 11900 | int rc; |
eee67a47 | 11901 | char action[20]; |
5ff3a780 | 11902 | int timeout = 3000; |
0febb20c | 11903 | |
5ff3a780 | 11904 | sysfs_wait(fd, &timeout); |
a47e44fb AK |
11905 | if (sysfs_get_str(sra, NULL, "sync_action", |
11906 | action, 20) > 0 && | |
d7d3809a | 11907 | strncmp(action, "reshape", 7) != 0) { |
b2be2b62 AO |
11908 | if (strncmp(action, "idle", 4) == 0) |
11909 | break; | |
d7d3809a AP |
11910 | close(fd); |
11911 | return -1; | |
11912 | } | |
0febb20c AO |
11913 | |
11914 | rc = read_completed(fd, &completed); | |
11915 | if (rc < 0) { | |
1ade5cc1 | 11916 | dprintf("cannot read reshape_position (in loop)\n"); |
eee67a47 AK |
11917 | close(fd); |
11918 | return 1; | |
0febb20c AO |
11919 | } else if (rc == COMPLETED_NONE) |
11920 | break; | |
85ca499c | 11921 | } while (completed < position_to_set); |
b2be2b62 | 11922 | |
eee67a47 AK |
11923 | close(fd); |
11924 | return 0; | |
eee67a47 AK |
11925 | } |
11926 | ||
b915c95f AK |
11927 | /******************************************************************************* |
11928 | * Function: check_degradation_change | |
11929 | * Description: Check that array hasn't become failed. | |
11930 | * Parameters: | |
11931 | * info : for sysfs access | |
11932 | * sources : source disks descriptors | |
11933 | * degraded: previous degradation level | |
11934 | * Returns: | |
11935 | * degradation level | |
11936 | ******************************************************************************/ | |
11937 | int check_degradation_change(struct mdinfo *info, | |
11938 | int *sources, | |
11939 | int degraded) | |
11940 | { | |
11941 | unsigned long long new_degraded; | |
e1993023 LD |
11942 | int rv; |
11943 | ||
11944 | rv = sysfs_get_ll(info, NULL, "degraded", &new_degraded); | |
089f9d79 | 11945 | if (rv == -1 || (new_degraded != (unsigned long long)degraded)) { |
b915c95f AK |
11946 | /* check each device to ensure it is still working */ |
11947 | struct mdinfo *sd; | |
11948 | new_degraded = 0; | |
11949 | for (sd = info->devs ; sd ; sd = sd->next) { | |
11950 | if (sd->disk.state & (1<<MD_DISK_FAULTY)) | |
11951 | continue; | |
11952 | if (sd->disk.state & (1<<MD_DISK_SYNC)) { | |
cf52eff5 TM |
11953 | char sbuf[100]; |
11954 | ||
b915c95f | 11955 | if (sysfs_get_str(info, |
cf52eff5 | 11956 | sd, "state", sbuf, sizeof(sbuf)) < 0 || |
b915c95f AK |
11957 | strstr(sbuf, "faulty") || |
11958 | strstr(sbuf, "in_sync") == NULL) { | |
11959 | /* this device is dead */ | |
11960 | sd->disk.state = (1<<MD_DISK_FAULTY); | |
11961 | if (sd->disk.raid_disk >= 0 && | |
11962 | sources[sd->disk.raid_disk] >= 0) { | |
11963 | close(sources[ | |
11964 | sd->disk.raid_disk]); | |
11965 | sources[sd->disk.raid_disk] = | |
11966 | -1; | |
11967 | } | |
11968 | new_degraded++; | |
11969 | } | |
11970 | } | |
11971 | } | |
11972 | } | |
11973 | ||
11974 | return new_degraded; | |
11975 | } | |
11976 | ||
10f22854 AK |
11977 | /******************************************************************************* |
11978 | * Function: imsm_manage_reshape | |
11979 | * Description: Function finds array under reshape and it manages reshape | |
11980 | * process. It creates stripes backups (if required) and sets | |
942e1cdb | 11981 | * checkpoints. |
10f22854 AK |
11982 | * Parameters: |
11983 | * afd : Backup handle (nattive) - not used | |
11984 | * sra : general array info | |
11985 | * reshape : reshape parameters - not used | |
11986 | * st : supertype structure | |
11987 | * blocks : size of critical section [blocks] | |
11988 | * fds : table of source device descriptor | |
11989 | * offsets : start of array (offest per devices) | |
11990 | * dests : not used | |
11991 | * destfd : table of destination device descriptor | |
11992 | * destoffsets : table of destination offsets (per device) | |
11993 | * Returns: | |
11994 | * 1 : success, reshape is done | |
11995 | * 0 : fail | |
11996 | ******************************************************************************/ | |
999b4972 N |
11997 | static int imsm_manage_reshape( |
11998 | int afd, struct mdinfo *sra, struct reshape *reshape, | |
10f22854 | 11999 | struct supertype *st, unsigned long backup_blocks, |
999b4972 N |
12000 | int *fds, unsigned long long *offsets, |
12001 | int dests, int *destfd, unsigned long long *destoffsets) | |
12002 | { | |
10f22854 AK |
12003 | int ret_val = 0; |
12004 | struct intel_super *super = st->sb; | |
594dc1b8 | 12005 | struct intel_dev *dv; |
de44e46f | 12006 | unsigned int sector_size = super->sector_size; |
10f22854 | 12007 | struct imsm_dev *dev = NULL; |
9529d343 | 12008 | struct imsm_map *map_src, *map_dest; |
10f22854 AK |
12009 | int migr_vol_qan = 0; |
12010 | int ndata, odata; /* [bytes] */ | |
12011 | int chunk; /* [bytes] */ | |
12012 | struct migr_record *migr_rec; | |
12013 | char *buf = NULL; | |
12014 | unsigned int buf_size; /* [bytes] */ | |
12015 | unsigned long long max_position; /* array size [bytes] */ | |
12016 | unsigned long long next_step; /* [blocks]/[bytes] */ | |
12017 | unsigned long long old_data_stripe_length; | |
10f22854 AK |
12018 | unsigned long long start_src; /* [bytes] */ |
12019 | unsigned long long start; /* [bytes] */ | |
12020 | unsigned long long start_buf_shift; /* [bytes] */ | |
b915c95f | 12021 | int degraded = 0; |
ab724b98 | 12022 | int source_layout = 0; |
10f22854 | 12023 | |
79a16a9b JS |
12024 | if (!sra) |
12025 | return ret_val; | |
12026 | ||
12027 | if (!fds || !offsets) | |
10f22854 AK |
12028 | goto abort; |
12029 | ||
12030 | /* Find volume during the reshape */ | |
12031 | for (dv = super->devlist; dv; dv = dv->next) { | |
fc54fe7a JS |
12032 | if (dv->dev->vol.migr_type == MIGR_GEN_MIGR && |
12033 | dv->dev->vol.migr_state == 1) { | |
10f22854 AK |
12034 | dev = dv->dev; |
12035 | migr_vol_qan++; | |
12036 | } | |
12037 | } | |
12038 | /* Only one volume can migrate at the same time */ | |
12039 | if (migr_vol_qan != 1) { | |
676e87a8 | 12040 | pr_err("%s", migr_vol_qan ? |
10f22854 AK |
12041 | "Number of migrating volumes greater than 1\n" : |
12042 | "There is no volume during migrationg\n"); | |
12043 | goto abort; | |
12044 | } | |
12045 | ||
9529d343 | 12046 | map_dest = get_imsm_map(dev, MAP_0); |
238c0a71 | 12047 | map_src = get_imsm_map(dev, MAP_1); |
10f22854 AK |
12048 | if (map_src == NULL) |
12049 | goto abort; | |
10f22854 | 12050 | |
9529d343 MD |
12051 | ndata = imsm_num_data_members(map_dest); |
12052 | odata = imsm_num_data_members(map_src); | |
10f22854 | 12053 | |
7b1ab482 | 12054 | chunk = __le16_to_cpu(map_src->blocks_per_strip) * 512; |
10f22854 AK |
12055 | old_data_stripe_length = odata * chunk; |
12056 | ||
12057 | migr_rec = super->migr_rec; | |
12058 | ||
10f22854 AK |
12059 | /* initialize migration record for start condition */ |
12060 | if (sra->reshape_progress == 0) | |
12061 | init_migr_record_imsm(st, dev, sra); | |
b2c59438 AK |
12062 | else { |
12063 | if (__le32_to_cpu(migr_rec->rec_status) != UNIT_SRC_NORMAL) { | |
7a862a02 | 12064 | dprintf("imsm: cannot restart migration when data are present in copy area.\n"); |
b2c59438 AK |
12065 | goto abort; |
12066 | } | |
6a75c8ca AK |
12067 | /* Save checkpoint to update migration record for current |
12068 | * reshape position (in md). It can be farther than current | |
12069 | * reshape position in metadata. | |
12070 | */ | |
12071 | if (save_checkpoint_imsm(st, sra, UNIT_SRC_NORMAL) == 1) { | |
12072 | /* ignore error == 2, this can mean end of reshape here | |
12073 | */ | |
7a862a02 | 12074 | dprintf("imsm: Cannot write checkpoint to migration record (UNIT_SRC_NORMAL, initial save)\n"); |
6a75c8ca AK |
12075 | goto abort; |
12076 | } | |
b2c59438 | 12077 | } |
10f22854 AK |
12078 | |
12079 | /* size for data */ | |
12080 | buf_size = __le32_to_cpu(migr_rec->blocks_per_unit) * 512; | |
12081 | /* extend buffer size for parity disk */ | |
12082 | buf_size += __le32_to_cpu(migr_rec->dest_depth_per_unit) * 512; | |
3e684231 | 12083 | /* add space for stripe alignment */ |
10f22854 | 12084 | buf_size += old_data_stripe_length; |
de44e46f PB |
12085 | if (posix_memalign((void **)&buf, MAX_SECTOR_SIZE, buf_size)) { |
12086 | dprintf("imsm: Cannot allocate checkpoint buffer\n"); | |
10f22854 AK |
12087 | goto abort; |
12088 | } | |
12089 | ||
3ef4403c | 12090 | max_position = sra->component_size * ndata; |
68eb8bc6 | 12091 | source_layout = imsm_level_to_layout(map_src->raid_level); |
10f22854 | 12092 | |
9f421827 PB |
12093 | while (current_migr_unit(migr_rec) < |
12094 | get_num_migr_units(migr_rec)) { | |
10f22854 AK |
12095 | /* current reshape position [blocks] */ |
12096 | unsigned long long current_position = | |
12097 | __le32_to_cpu(migr_rec->blocks_per_unit) | |
9f421827 | 12098 | * current_migr_unit(migr_rec); |
10f22854 AK |
12099 | unsigned long long border; |
12100 | ||
b915c95f AK |
12101 | /* Check that array hasn't become failed. |
12102 | */ | |
12103 | degraded = check_degradation_change(sra, fds, degraded); | |
12104 | if (degraded > 1) { | |
7a862a02 | 12105 | dprintf("imsm: Abort reshape due to degradation level (%i)\n", degraded); |
b915c95f AK |
12106 | goto abort; |
12107 | } | |
12108 | ||
10f22854 AK |
12109 | next_step = __le32_to_cpu(migr_rec->blocks_per_unit); |
12110 | ||
12111 | if ((current_position + next_step) > max_position) | |
12112 | next_step = max_position - current_position; | |
12113 | ||
92144abf | 12114 | start = current_position * 512; |
10f22854 | 12115 | |
942e1cdb | 12116 | /* align reading start to old geometry */ |
10f22854 AK |
12117 | start_buf_shift = start % old_data_stripe_length; |
12118 | start_src = start - start_buf_shift; | |
12119 | ||
12120 | border = (start_src / odata) - (start / ndata); | |
12121 | border /= 512; | |
12122 | if (border <= __le32_to_cpu(migr_rec->dest_depth_per_unit)) { | |
12123 | /* save critical stripes to buf | |
12124 | * start - start address of current unit | |
12125 | * to backup [bytes] | |
12126 | * start_src - start address of current unit | |
12127 | * to backup alligned to source array | |
12128 | * [bytes] | |
12129 | */ | |
594dc1b8 | 12130 | unsigned long long next_step_filler; |
10f22854 AK |
12131 | unsigned long long copy_length = next_step * 512; |
12132 | ||
12133 | /* allign copy area length to stripe in old geometry */ | |
12134 | next_step_filler = ((copy_length + start_buf_shift) | |
12135 | % old_data_stripe_length); | |
12136 | if (next_step_filler) | |
12137 | next_step_filler = (old_data_stripe_length | |
12138 | - next_step_filler); | |
7a862a02 | 12139 | 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 |
12140 | start, start_src, copy_length, |
12141 | start_buf_shift, next_step_filler); | |
12142 | ||
12143 | if (save_stripes(fds, offsets, map_src->num_members, | |
ab724b98 AK |
12144 | chunk, map_src->raid_level, |
12145 | source_layout, 0, NULL, start_src, | |
10f22854 AK |
12146 | copy_length + |
12147 | next_step_filler + start_buf_shift, | |
12148 | buf)) { | |
7a862a02 | 12149 | dprintf("imsm: Cannot save stripes to buffer\n"); |
10f22854 AK |
12150 | goto abort; |
12151 | } | |
12152 | /* Convert data to destination format and store it | |
12153 | * in backup general migration area | |
12154 | */ | |
12155 | if (save_backup_imsm(st, dev, sra, | |
aea93171 | 12156 | buf + start_buf_shift, copy_length)) { |
7a862a02 | 12157 | dprintf("imsm: Cannot save stripes to target devices\n"); |
10f22854 AK |
12158 | goto abort; |
12159 | } | |
12160 | if (save_checkpoint_imsm(st, sra, | |
12161 | UNIT_SRC_IN_CP_AREA)) { | |
7a862a02 | 12162 | dprintf("imsm: Cannot write checkpoint to migration record (UNIT_SRC_IN_CP_AREA)\n"); |
10f22854 AK |
12163 | goto abort; |
12164 | } | |
8016a6d4 AK |
12165 | } else { |
12166 | /* set next step to use whole border area */ | |
12167 | border /= next_step; | |
12168 | if (border > 1) | |
12169 | next_step *= border; | |
10f22854 AK |
12170 | } |
12171 | /* When data backed up, checkpoint stored, | |
12172 | * kick the kernel to reshape unit of data | |
12173 | */ | |
12174 | next_step = next_step + sra->reshape_progress; | |
8016a6d4 AK |
12175 | /* limit next step to array max position */ |
12176 | if (next_step > max_position) | |
12177 | next_step = max_position; | |
10f22854 AK |
12178 | sysfs_set_num(sra, NULL, "suspend_lo", sra->reshape_progress); |
12179 | sysfs_set_num(sra, NULL, "suspend_hi", next_step); | |
ae9f01f8 | 12180 | sra->reshape_progress = next_step; |
10f22854 AK |
12181 | |
12182 | /* wait until reshape finish */ | |
c85338c6 | 12183 | if (wait_for_reshape_imsm(sra, ndata)) { |
c47b0ff6 AK |
12184 | dprintf("wait_for_reshape_imsm returned error!\n"); |
12185 | goto abort; | |
12186 | } | |
84d11e6c N |
12187 | if (sigterm) |
12188 | goto abort; | |
10f22854 | 12189 | |
0228d92c AK |
12190 | if (save_checkpoint_imsm(st, sra, UNIT_SRC_NORMAL) == 1) { |
12191 | /* ignore error == 2, this can mean end of reshape here | |
12192 | */ | |
7a862a02 | 12193 | dprintf("imsm: Cannot write checkpoint to migration record (UNIT_SRC_NORMAL)\n"); |
10f22854 AK |
12194 | goto abort; |
12195 | } | |
12196 | ||
12197 | } | |
12198 | ||
71e5411e PB |
12199 | /* clear migr_rec on disks after successful migration */ |
12200 | struct dl *d; | |
12201 | ||
85337573 | 12202 | memset(super->migr_rec_buf, 0, MIGR_REC_BUF_SECTORS*MAX_SECTOR_SIZE); |
71e5411e PB |
12203 | for (d = super->disks; d; d = d->next) { |
12204 | if (d->index < 0 || is_failed(&d->disk)) | |
12205 | continue; | |
12206 | unsigned long long dsize; | |
12207 | ||
12208 | get_dev_size(d->fd, NULL, &dsize); | |
de44e46f | 12209 | if (lseek64(d->fd, dsize - MIGR_REC_SECTOR_POSITION*sector_size, |
71e5411e | 12210 | SEEK_SET) >= 0) { |
466070ad | 12211 | if ((unsigned int)write(d->fd, super->migr_rec_buf, |
de44e46f PB |
12212 | MIGR_REC_BUF_SECTORS*sector_size) != |
12213 | MIGR_REC_BUF_SECTORS*sector_size) | |
71e5411e PB |
12214 | perror("Write migr_rec failed"); |
12215 | } | |
12216 | } | |
12217 | ||
10f22854 AK |
12218 | /* return '1' if done */ |
12219 | ret_val = 1; | |
12220 | abort: | |
12221 | free(buf); | |
942e1cdb N |
12222 | /* See Grow.c: abort_reshape() for further explanation */ |
12223 | sysfs_set_num(sra, NULL, "suspend_lo", 0x7FFFFFFFFFFFFFFFULL); | |
12224 | sysfs_set_num(sra, NULL, "suspend_hi", 0); | |
12225 | sysfs_set_num(sra, NULL, "suspend_lo", 0); | |
10f22854 AK |
12226 | |
12227 | return ret_val; | |
999b4972 | 12228 | } |
0c21b485 | 12229 | |
cdddbdbc | 12230 | struct superswitch super_imsm = { |
cdddbdbc DW |
12231 | .examine_super = examine_super_imsm, |
12232 | .brief_examine_super = brief_examine_super_imsm, | |
4737ae25 | 12233 | .brief_examine_subarrays = brief_examine_subarrays_imsm, |
9d84c8ea | 12234 | .export_examine_super = export_examine_super_imsm, |
cdddbdbc DW |
12235 | .detail_super = detail_super_imsm, |
12236 | .brief_detail_super = brief_detail_super_imsm, | |
bf5a934a | 12237 | .write_init_super = write_init_super_imsm, |
0e600426 N |
12238 | .validate_geometry = validate_geometry_imsm, |
12239 | .add_to_super = add_to_super_imsm, | |
1a64be56 | 12240 | .remove_from_super = remove_from_super_imsm, |
d665cc31 | 12241 | .detail_platform = detail_platform_imsm, |
e50cf220 | 12242 | .export_detail_platform = export_detail_platform_imsm, |
33414a01 | 12243 | .kill_subarray = kill_subarray_imsm, |
aa534678 | 12244 | .update_subarray = update_subarray_imsm, |
2b959fbf | 12245 | .load_container = load_container_imsm, |
71204a50 N |
12246 | .default_geometry = default_geometry_imsm, |
12247 | .get_disk_controller_domain = imsm_get_disk_controller_domain, | |
12248 | .reshape_super = imsm_reshape_super, | |
12249 | .manage_reshape = imsm_manage_reshape, | |
9e2d750d | 12250 | .recover_backup = recover_backup_imsm, |
27156a57 | 12251 | .examine_badblocks = examine_badblocks_imsm, |
cdddbdbc DW |
12252 | .match_home = match_home_imsm, |
12253 | .uuid_from_super= uuid_from_super_imsm, | |
12254 | .getinfo_super = getinfo_super_imsm, | |
5c4cd5da | 12255 | .getinfo_super_disks = getinfo_super_disks_imsm, |
cdddbdbc DW |
12256 | .update_super = update_super_imsm, |
12257 | ||
12258 | .avail_size = avail_size_imsm, | |
fbfdcb06 | 12259 | .get_spare_criteria = get_spare_criteria_imsm, |
cdddbdbc DW |
12260 | |
12261 | .compare_super = compare_super_imsm, | |
12262 | ||
12263 | .load_super = load_super_imsm, | |
bf5a934a | 12264 | .init_super = init_super_imsm, |
e683ca88 | 12265 | .store_super = store_super_imsm, |
cdddbdbc DW |
12266 | .free_super = free_super_imsm, |
12267 | .match_metadata_desc = match_metadata_desc_imsm, | |
bf5a934a | 12268 | .container_content = container_content_imsm, |
0c21b485 | 12269 | .validate_container = validate_container_imsm, |
cdddbdbc | 12270 | |
2432ce9b AP |
12271 | .write_init_ppl = write_init_ppl_imsm, |
12272 | .validate_ppl = validate_ppl_imsm, | |
12273 | ||
cdddbdbc | 12274 | .external = 1, |
4cce4069 | 12275 | .name = "imsm", |
845dea95 NB |
12276 | |
12277 | /* for mdmon */ | |
12278 | .open_new = imsm_open_new, | |
ed9d66aa | 12279 | .set_array_state= imsm_set_array_state, |
845dea95 NB |
12280 | .set_disk = imsm_set_disk, |
12281 | .sync_metadata = imsm_sync_metadata, | |
88758e9d | 12282 | .activate_spare = imsm_activate_spare, |
e8319a19 | 12283 | .process_update = imsm_process_update, |
8273f55e | 12284 | .prepare_update = imsm_prepare_update, |
6f50473f | 12285 | .record_bad_block = imsm_record_badblock, |
c07a5a4f | 12286 | .clear_bad_block = imsm_clear_badblock, |
928f1424 | 12287 | .get_bad_blocks = imsm_get_badblocks, |
cdddbdbc | 12288 | }; |