]>
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" |
420dafcd | 23 | #include "dlink.h" |
51006d85 | 24 | #include "sha1.h" |
88c32bb1 | 25 | #include "platform-intel.h" |
cdddbdbc DW |
26 | #include <values.h> |
27 | #include <scsi/sg.h> | |
28 | #include <ctype.h> | |
d665cc31 | 29 | #include <dirent.h> |
cdddbdbc DW |
30 | |
31 | /* MPB == Metadata Parameter Block */ | |
32 | #define MPB_SIGNATURE "Intel Raid ISM Cfg Sig. " | |
33 | #define MPB_SIG_LEN (strlen(MPB_SIGNATURE)) | |
34 | #define MPB_VERSION_RAID0 "1.0.00" | |
35 | #define MPB_VERSION_RAID1 "1.1.00" | |
fe7ed8cb DW |
36 | #define MPB_VERSION_MANY_VOLUMES_PER_ARRAY "1.2.00" |
37 | #define MPB_VERSION_3OR4_DISK_ARRAY "1.2.01" | |
cdddbdbc | 38 | #define MPB_VERSION_RAID5 "1.2.02" |
fe7ed8cb DW |
39 | #define MPB_VERSION_5OR6_DISK_ARRAY "1.2.04" |
40 | #define MPB_VERSION_CNG "1.2.06" | |
41 | #define MPB_VERSION_ATTRIBS "1.3.00" | |
cdddbdbc DW |
42 | #define MAX_SIGNATURE_LENGTH 32 |
43 | #define MAX_RAID_SERIAL_LEN 16 | |
fe7ed8cb | 44 | |
19482bcc AK |
45 | /* supports RAID0 */ |
46 | #define MPB_ATTRIB_RAID0 __cpu_to_le32(0x00000001) | |
47 | /* supports RAID1 */ | |
48 | #define MPB_ATTRIB_RAID1 __cpu_to_le32(0x00000002) | |
49 | /* supports RAID10 */ | |
50 | #define MPB_ATTRIB_RAID10 __cpu_to_le32(0x00000004) | |
51 | /* supports RAID1E */ | |
52 | #define MPB_ATTRIB_RAID1E __cpu_to_le32(0x00000008) | |
53 | /* supports RAID5 */ | |
54 | #define MPB_ATTRIB_RAID5 __cpu_to_le32(0x00000010) | |
55 | /* supports RAID CNG */ | |
56 | #define MPB_ATTRIB_RAIDCNG __cpu_to_le32(0x00000020) | |
57 | /* supports expanded stripe sizes of 256K, 512K and 1MB */ | |
58 | #define MPB_ATTRIB_EXP_STRIPE_SIZE __cpu_to_le32(0x00000040) | |
59 | ||
60 | /* The OROM Support RST Caching of Volumes */ | |
61 | #define MPB_ATTRIB_NVM __cpu_to_le32(0x02000000) | |
62 | /* The OROM supports creating disks greater than 2TB */ | |
63 | #define MPB_ATTRIB_2TB_DISK __cpu_to_le32(0x04000000) | |
64 | /* The OROM supports Bad Block Management */ | |
65 | #define MPB_ATTRIB_BBM __cpu_to_le32(0x08000000) | |
66 | ||
67 | /* THe OROM Supports NVM Caching of Volumes */ | |
68 | #define MPB_ATTRIB_NEVER_USE2 __cpu_to_le32(0x10000000) | |
69 | /* The OROM supports creating volumes greater than 2TB */ | |
70 | #define MPB_ATTRIB_2TB __cpu_to_le32(0x20000000) | |
71 | /* originally for PMP, now it's wasted b/c. Never use this bit! */ | |
72 | #define MPB_ATTRIB_NEVER_USE __cpu_to_le32(0x40000000) | |
73 | /* Verify MPB contents against checksum after reading MPB */ | |
74 | #define MPB_ATTRIB_CHECKSUM_VERIFY __cpu_to_le32(0x80000000) | |
75 | ||
76 | /* Define all supported attributes that have to be accepted by mdadm | |
77 | */ | |
418f9b36 | 78 | #define MPB_ATTRIB_SUPPORTED (MPB_ATTRIB_CHECKSUM_VERIFY | \ |
19482bcc AK |
79 | MPB_ATTRIB_2TB | \ |
80 | MPB_ATTRIB_2TB_DISK | \ | |
81 | MPB_ATTRIB_RAID0 | \ | |
82 | MPB_ATTRIB_RAID1 | \ | |
83 | MPB_ATTRIB_RAID10 | \ | |
84 | MPB_ATTRIB_RAID5 | \ | |
bbab0940 TM |
85 | MPB_ATTRIB_EXP_STRIPE_SIZE | \ |
86 | MPB_ATTRIB_BBM) | |
418f9b36 N |
87 | |
88 | /* Define attributes that are unused but not harmful */ | |
89 | #define MPB_ATTRIB_IGNORED (MPB_ATTRIB_NEVER_USE) | |
fe7ed8cb | 90 | |
8e59f3d8 | 91 | #define MPB_SECTOR_CNT 2210 |
611d9529 MD |
92 | #define IMSM_RESERVED_SECTORS 8192 |
93 | #define NUM_BLOCKS_DIRTY_STRIPE_REGION 2048 | |
979d38be | 94 | #define SECT_PER_MB_SHIFT 11 |
f36a9ecd | 95 | #define MAX_SECTOR_SIZE 4096 |
c2462068 PB |
96 | #define MULTIPLE_PPL_AREA_SIZE_IMSM (1024 * 1024) /* Size of the whole |
97 | * mutliple PPL area | |
98 | */ | |
cdddbdbc | 99 | |
fbc42556 JR |
100 | /* |
101 | * Internal Write-intent bitmap is stored in the same area where PPL. | |
102 | * Both features are mutually exclusive, so it is not an issue. | |
103 | * The first 8KiB of the area are reserved and shall not be used. | |
104 | */ | |
105 | #define IMSM_BITMAP_AREA_RESERVED_SIZE 8192 | |
106 | ||
107 | #define IMSM_BITMAP_HEADER_OFFSET (IMSM_BITMAP_AREA_RESERVED_SIZE) | |
108 | #define IMSM_BITMAP_HEADER_SIZE MAX_SECTOR_SIZE | |
109 | ||
110 | #define IMSM_BITMAP_START_OFFSET (IMSM_BITMAP_HEADER_OFFSET + IMSM_BITMAP_HEADER_SIZE) | |
111 | #define IMSM_BITMAP_AREA_SIZE (MULTIPLE_PPL_AREA_SIZE_IMSM - IMSM_BITMAP_START_OFFSET) | |
112 | #define IMSM_BITMAP_AND_HEADER_SIZE (IMSM_BITMAP_AREA_SIZE + IMSM_BITMAP_HEADER_SIZE) | |
113 | ||
114 | #define IMSM_DEFAULT_BITMAP_CHUNKSIZE (64 * 1024 * 1024) | |
115 | #define IMSM_DEFAULT_BITMAP_DAEMON_SLEEP 5 | |
116 | ||
761e3bd9 N |
117 | /* |
118 | * This macro let's us ensure that no-one accidentally | |
119 | * changes the size of a struct | |
120 | */ | |
121 | #define ASSERT_SIZE(_struct, size) \ | |
122 | static inline void __assert_size_##_struct(void) \ | |
123 | { \ | |
124 | switch (0) { \ | |
125 | case 0: break; \ | |
126 | case (sizeof(struct _struct) == size): break; \ | |
127 | } \ | |
128 | } | |
129 | ||
cdddbdbc DW |
130 | /* Disk configuration info. */ |
131 | #define IMSM_MAX_DEVICES 255 | |
132 | struct imsm_disk { | |
133 | __u8 serial[MAX_RAID_SERIAL_LEN];/* 0xD8 - 0xE7 ascii serial number */ | |
5551b113 | 134 | __u32 total_blocks_lo; /* 0xE8 - 0xEB total blocks lo */ |
cdddbdbc | 135 | __u32 scsi_id; /* 0xEC - 0xEF scsi ID */ |
f2f27e63 DW |
136 | #define SPARE_DISK __cpu_to_le32(0x01) /* Spare */ |
137 | #define CONFIGURED_DISK __cpu_to_le32(0x02) /* Member of some RaidDev */ | |
138 | #define FAILED_DISK __cpu_to_le32(0x04) /* Permanent failure */ | |
2432ce9b | 139 | #define JOURNAL_DISK __cpu_to_le32(0x2000000) /* Device marked as Journaling Drive */ |
cdddbdbc | 140 | __u32 status; /* 0xF0 - 0xF3 */ |
1011e834 | 141 | __u32 owner_cfg_num; /* which config 0,1,2... owns this disk */ |
5551b113 CA |
142 | __u32 total_blocks_hi; /* 0xF4 - 0xF5 total blocks hi */ |
143 | #define IMSM_DISK_FILLERS 3 | |
144 | __u32 filler[IMSM_DISK_FILLERS]; /* 0xF5 - 0x107 MPB_DISK_FILLERS for future expansion */ | |
cdddbdbc | 145 | }; |
761e3bd9 | 146 | ASSERT_SIZE(imsm_disk, 48) |
cdddbdbc | 147 | |
3b451610 AK |
148 | /* map selector for map managment |
149 | */ | |
238c0a71 AK |
150 | #define MAP_0 0 |
151 | #define MAP_1 1 | |
152 | #define MAP_X -1 | |
3b451610 | 153 | |
cdddbdbc DW |
154 | /* RAID map configuration infos. */ |
155 | struct imsm_map { | |
5551b113 CA |
156 | __u32 pba_of_lba0_lo; /* start address of partition */ |
157 | __u32 blocks_per_member_lo;/* blocks per member */ | |
158 | __u32 num_data_stripes_lo; /* number of data stripes */ | |
cdddbdbc DW |
159 | __u16 blocks_per_strip; |
160 | __u8 map_state; /* Normal, Uninitialized, Degraded, Failed */ | |
161 | #define IMSM_T_STATE_NORMAL 0 | |
162 | #define IMSM_T_STATE_UNINITIALIZED 1 | |
e3bba0e0 DW |
163 | #define IMSM_T_STATE_DEGRADED 2 |
164 | #define IMSM_T_STATE_FAILED 3 | |
cdddbdbc DW |
165 | __u8 raid_level; |
166 | #define IMSM_T_RAID0 0 | |
167 | #define IMSM_T_RAID1 1 | |
168 | #define IMSM_T_RAID5 5 /* since metadata version 1.2.02 ? */ | |
169 | __u8 num_members; /* number of member disks */ | |
fe7ed8cb DW |
170 | __u8 num_domains; /* number of parity domains */ |
171 | __u8 failed_disk_num; /* valid only when state is degraded */ | |
252d23c0 | 172 | __u8 ddf; |
5551b113 CA |
173 | __u32 pba_of_lba0_hi; |
174 | __u32 blocks_per_member_hi; | |
175 | __u32 num_data_stripes_hi; | |
176 | __u32 filler[4]; /* expansion area */ | |
7eef0453 | 177 | #define IMSM_ORD_REBUILD (1 << 24) |
cdddbdbc | 178 | __u32 disk_ord_tbl[1]; /* disk_ord_tbl[num_members], |
7eef0453 DW |
179 | * top byte contains some flags |
180 | */ | |
761e3bd9 N |
181 | }; |
182 | ASSERT_SIZE(imsm_map, 52) | |
cdddbdbc DW |
183 | |
184 | struct imsm_vol { | |
4036e7ee | 185 | __u32 curr_migr_unit_lo; |
fe7ed8cb | 186 | __u32 checkpoint_id; /* id to access curr_migr_unit */ |
cdddbdbc | 187 | __u8 migr_state; /* Normal or Migrating */ |
e3bba0e0 DW |
188 | #define MIGR_INIT 0 |
189 | #define MIGR_REBUILD 1 | |
190 | #define MIGR_VERIFY 2 /* analagous to echo check > sync_action */ | |
191 | #define MIGR_GEN_MIGR 3 | |
192 | #define MIGR_STATE_CHANGE 4 | |
1484e727 | 193 | #define MIGR_REPAIR 5 |
cdddbdbc | 194 | __u8 migr_type; /* Initializing, Rebuilding, ... */ |
2432ce9b AP |
195 | #define RAIDVOL_CLEAN 0 |
196 | #define RAIDVOL_DIRTY 1 | |
197 | #define RAIDVOL_DSRECORD_VALID 2 | |
cdddbdbc | 198 | __u8 dirty; |
fe7ed8cb DW |
199 | __u8 fs_state; /* fast-sync state for CnG (0xff == disabled) */ |
200 | __u16 verify_errors; /* number of mismatches */ | |
201 | __u16 bad_blocks; /* number of bad blocks during verify */ | |
4036e7ee MT |
202 | __u32 curr_migr_unit_hi; |
203 | __u32 filler[3]; | |
cdddbdbc DW |
204 | struct imsm_map map[1]; |
205 | /* here comes another one if migr_state */ | |
761e3bd9 N |
206 | }; |
207 | ASSERT_SIZE(imsm_vol, 84) | |
cdddbdbc DW |
208 | |
209 | struct imsm_dev { | |
fe7ed8cb | 210 | __u8 volume[MAX_RAID_SERIAL_LEN]; |
cdddbdbc DW |
211 | __u32 size_low; |
212 | __u32 size_high; | |
fe7ed8cb DW |
213 | #define DEV_BOOTABLE __cpu_to_le32(0x01) |
214 | #define DEV_BOOT_DEVICE __cpu_to_le32(0x02) | |
215 | #define DEV_READ_COALESCING __cpu_to_le32(0x04) | |
216 | #define DEV_WRITE_COALESCING __cpu_to_le32(0x08) | |
217 | #define DEV_LAST_SHUTDOWN_DIRTY __cpu_to_le32(0x10) | |
218 | #define DEV_HIDDEN_AT_BOOT __cpu_to_le32(0x20) | |
219 | #define DEV_CURRENTLY_HIDDEN __cpu_to_le32(0x40) | |
220 | #define DEV_VERIFY_AND_FIX __cpu_to_le32(0x80) | |
221 | #define DEV_MAP_STATE_UNINIT __cpu_to_le32(0x100) | |
222 | #define DEV_NO_AUTO_RECOVERY __cpu_to_le32(0x200) | |
223 | #define DEV_CLONE_N_GO __cpu_to_le32(0x400) | |
224 | #define DEV_CLONE_MAN_SYNC __cpu_to_le32(0x800) | |
225 | #define DEV_CNG_MASTER_DISK_NUM __cpu_to_le32(0x1000) | |
cdddbdbc DW |
226 | __u32 status; /* Persistent RaidDev status */ |
227 | __u32 reserved_blocks; /* Reserved blocks at beginning of volume */ | |
fe7ed8cb DW |
228 | __u8 migr_priority; |
229 | __u8 num_sub_vols; | |
230 | __u8 tid; | |
231 | __u8 cng_master_disk; | |
232 | __u16 cache_policy; | |
233 | __u8 cng_state; | |
234 | __u8 cng_sub_state; | |
2432ce9b AP |
235 | __u16 my_vol_raid_dev_num; /* Used in Unique volume Id for this RaidDev */ |
236 | ||
237 | /* NVM_EN */ | |
238 | __u8 nv_cache_mode; | |
239 | __u8 nv_cache_flags; | |
240 | ||
241 | /* Unique Volume Id of the NvCache Volume associated with this volume */ | |
242 | __u32 nvc_vol_orig_family_num; | |
243 | __u16 nvc_vol_raid_dev_num; | |
244 | ||
245 | #define RWH_OFF 0 | |
246 | #define RWH_DISTRIBUTED 1 | |
247 | #define RWH_JOURNALING_DRIVE 2 | |
c2462068 PB |
248 | #define RWH_MULTIPLE_DISTRIBUTED 3 |
249 | #define RWH_MULTIPLE_PPLS_JOURNALING_DRIVE 4 | |
250 | #define RWH_MULTIPLE_OFF 5 | |
fbc42556 | 251 | #define RWH_BITMAP 6 |
2432ce9b AP |
252 | __u8 rwh_policy; /* Raid Write Hole Policy */ |
253 | __u8 jd_serial[MAX_RAID_SERIAL_LEN]; /* Journal Drive serial number */ | |
254 | __u8 filler1; | |
255 | ||
256 | #define IMSM_DEV_FILLERS 3 | |
cdddbdbc DW |
257 | __u32 filler[IMSM_DEV_FILLERS]; |
258 | struct imsm_vol vol; | |
761e3bd9 N |
259 | }; |
260 | ASSERT_SIZE(imsm_dev, 164) | |
cdddbdbc DW |
261 | |
262 | struct imsm_super { | |
263 | __u8 sig[MAX_SIGNATURE_LENGTH]; /* 0x00 - 0x1F */ | |
264 | __u32 check_sum; /* 0x20 - 0x23 MPB Checksum */ | |
265 | __u32 mpb_size; /* 0x24 - 0x27 Size of MPB */ | |
266 | __u32 family_num; /* 0x28 - 0x2B Checksum from first time this config was written */ | |
267 | __u32 generation_num; /* 0x2C - 0x2F Incremented each time this array's MPB is written */ | |
604b746f JD |
268 | __u32 error_log_size; /* 0x30 - 0x33 in bytes */ |
269 | __u32 attributes; /* 0x34 - 0x37 */ | |
cdddbdbc DW |
270 | __u8 num_disks; /* 0x38 Number of configured disks */ |
271 | __u8 num_raid_devs; /* 0x39 Number of configured volumes */ | |
604b746f JD |
272 | __u8 error_log_pos; /* 0x3A */ |
273 | __u8 fill[1]; /* 0x3B */ | |
274 | __u32 cache_size; /* 0x3c - 0x40 in mb */ | |
275 | __u32 orig_family_num; /* 0x40 - 0x43 original family num */ | |
276 | __u32 pwr_cycle_count; /* 0x44 - 0x47 simulated power cycle count for array */ | |
277 | __u32 bbm_log_size; /* 0x48 - 0x4B - size of bad Block Mgmt Log in bytes */ | |
2a24dc1b PB |
278 | __u16 num_raid_devs_created; /* 0x4C - 0x4D Used for generating unique |
279 | * volume IDs for raid_dev created in this array | |
280 | * (starts at 1) | |
281 | */ | |
282 | __u16 filler1; /* 0x4E - 0x4F */ | |
e48aed3c AP |
283 | __u64 creation_time; /* 0x50 - 0x57 Array creation time */ |
284 | #define IMSM_FILLERS 32 | |
285 | __u32 filler[IMSM_FILLERS]; /* 0x58 - 0xD7 RAID_MPB_FILLERS */ | |
cdddbdbc DW |
286 | struct imsm_disk disk[1]; /* 0xD8 diskTbl[numDisks] */ |
287 | /* here comes imsm_dev[num_raid_devs] */ | |
604b746f | 288 | /* here comes BBM logs */ |
761e3bd9 N |
289 | }; |
290 | ASSERT_SIZE(imsm_super, 264) | |
cdddbdbc | 291 | |
604b746f | 292 | #define BBM_LOG_MAX_ENTRIES 254 |
8d67477f TM |
293 | #define BBM_LOG_MAX_LBA_ENTRY_VAL 256 /* Represents 256 LBAs */ |
294 | #define BBM_LOG_SIGNATURE 0xabadb10c | |
295 | ||
296 | struct bbm_log_block_addr { | |
297 | __u16 w1; | |
298 | __u32 dw1; | |
299 | } __attribute__ ((__packed__)); | |
604b746f JD |
300 | |
301 | struct bbm_log_entry { | |
8d67477f TM |
302 | __u8 marked_count; /* Number of blocks marked - 1 */ |
303 | __u8 disk_ordinal; /* Disk entry within the imsm_super */ | |
304 | struct bbm_log_block_addr defective_block_start; | |
604b746f JD |
305 | } __attribute__ ((__packed__)); |
306 | ||
307 | struct bbm_log { | |
308 | __u32 signature; /* 0xABADB10C */ | |
309 | __u32 entry_count; | |
8d67477f | 310 | struct bbm_log_entry marked_block_entries[BBM_LOG_MAX_ENTRIES]; |
761e3bd9 N |
311 | }; |
312 | ASSERT_SIZE(bbm_log, 2040) | |
604b746f | 313 | |
cdddbdbc | 314 | static char *map_state_str[] = { "normal", "uninitialized", "degraded", "failed" }; |
cdddbdbc | 315 | |
b53bfba6 TM |
316 | #define BLOCKS_PER_KB (1024/512) |
317 | ||
8e59f3d8 AK |
318 | #define RAID_DISK_RESERVED_BLOCKS_IMSM_HI 2209 |
319 | ||
320 | #define GEN_MIGR_AREA_SIZE 2048 /* General Migration Copy Area size in blocks */ | |
321 | ||
de44e46f PB |
322 | #define MIGR_REC_BUF_SECTORS 1 /* size of migr_record i/o buffer in sectors */ |
323 | #define MIGR_REC_SECTOR_POSITION 1 /* migr_record position offset on disk, | |
324 | * MIGR_REC_BUF_SECTORS <= MIGR_REC_SECTOR_POS | |
17a4eaf9 AK |
325 | */ |
326 | ||
8e59f3d8 AK |
327 | #define UNIT_SRC_NORMAL 0 /* Source data for curr_migr_unit must |
328 | * be recovered using srcMap */ | |
329 | #define UNIT_SRC_IN_CP_AREA 1 /* Source data for curr_migr_unit has | |
330 | * already been migrated and must | |
331 | * be recovered from checkpoint area */ | |
2432ce9b | 332 | |
c2462068 | 333 | #define PPL_ENTRY_SPACE (128 * 1024) /* Size of single PPL, without the header */ |
2432ce9b | 334 | |
8e59f3d8 AK |
335 | struct migr_record { |
336 | __u32 rec_status; /* Status used to determine how to restart | |
337 | * migration in case it aborts | |
338 | * in some fashion */ | |
9f421827 | 339 | __u32 curr_migr_unit_lo; /* 0..numMigrUnits-1 */ |
8e59f3d8 AK |
340 | __u32 family_num; /* Family number of MPB |
341 | * containing the RaidDev | |
342 | * that is migrating */ | |
343 | __u32 ascending_migr; /* True if migrating in increasing | |
344 | * order of lbas */ | |
345 | __u32 blocks_per_unit; /* Num disk blocks per unit of operation */ | |
346 | __u32 dest_depth_per_unit; /* Num member blocks each destMap | |
347 | * member disk | |
348 | * advances per unit-of-operation */ | |
9f421827 PB |
349 | __u32 ckpt_area_pba_lo; /* Pba of first block of ckpt copy area */ |
350 | __u32 dest_1st_member_lba_lo; /* First member lba on first | |
351 | * stripe of destination */ | |
352 | __u32 num_migr_units_lo; /* Total num migration units-of-op */ | |
8e59f3d8 AK |
353 | __u32 post_migr_vol_cap; /* Size of volume after |
354 | * migration completes */ | |
355 | __u32 post_migr_vol_cap_hi; /* Expansion space for LBA64 */ | |
356 | __u32 ckpt_read_disk_num; /* Which member disk in destSubMap[0] the | |
357 | * migration ckpt record was read from | |
358 | * (for recovered migrations) */ | |
9f421827 PB |
359 | __u32 curr_migr_unit_hi; /* 0..numMigrUnits-1 high order 32 bits */ |
360 | __u32 ckpt_area_pba_hi; /* Pba of first block of ckpt copy area | |
361 | * high order 32 bits */ | |
362 | __u32 dest_1st_member_lba_hi; /* First member lba on first stripe of | |
363 | * destination - high order 32 bits */ | |
364 | __u32 num_migr_units_hi; /* Total num migration units-of-op | |
365 | * high order 32 bits */ | |
4036e7ee | 366 | __u32 filler[16]; |
761e3bd9 | 367 | }; |
4036e7ee | 368 | ASSERT_SIZE(migr_record, 128) |
8e59f3d8 | 369 | |
76c152ca MT |
370 | /** |
371 | * enum imsm_status - internal IMSM return values representation. | |
372 | * @STATUS_OK: function succeeded. | |
373 | * @STATUS_ERROR: General error ocurred (not specified). | |
374 | * | |
375 | * Typedefed to imsm_status_t. | |
376 | */ | |
377 | typedef enum imsm_status { | |
378 | IMSM_STATUS_ERROR = -1, | |
379 | IMSM_STATUS_OK = 0, | |
380 | } imsm_status_t; | |
381 | ||
ec50f7b6 LM |
382 | struct md_list { |
383 | /* usage marker: | |
384 | * 1: load metadata | |
385 | * 2: metadata does not match | |
386 | * 4: already checked | |
387 | */ | |
388 | int used; | |
389 | char *devname; | |
390 | int found; | |
391 | int container; | |
392 | dev_t st_rdev; | |
393 | struct md_list *next; | |
394 | }; | |
395 | ||
1484e727 DW |
396 | static __u8 migr_type(struct imsm_dev *dev) |
397 | { | |
398 | if (dev->vol.migr_type == MIGR_VERIFY && | |
399 | dev->status & DEV_VERIFY_AND_FIX) | |
400 | return MIGR_REPAIR; | |
401 | else | |
402 | return dev->vol.migr_type; | |
403 | } | |
404 | ||
405 | static void set_migr_type(struct imsm_dev *dev, __u8 migr_type) | |
406 | { | |
407 | /* for compatibility with older oroms convert MIGR_REPAIR, into | |
408 | * MIGR_VERIFY w/ DEV_VERIFY_AND_FIX status | |
409 | */ | |
410 | if (migr_type == MIGR_REPAIR) { | |
411 | dev->vol.migr_type = MIGR_VERIFY; | |
412 | dev->status |= DEV_VERIFY_AND_FIX; | |
413 | } else { | |
414 | dev->vol.migr_type = migr_type; | |
415 | dev->status &= ~DEV_VERIFY_AND_FIX; | |
416 | } | |
417 | } | |
418 | ||
f36a9ecd | 419 | static unsigned int sector_count(__u32 bytes, unsigned int sector_size) |
cdddbdbc | 420 | { |
f36a9ecd | 421 | return ROUND_UP(bytes, sector_size) / sector_size; |
87eb16df | 422 | } |
cdddbdbc | 423 | |
f36a9ecd PB |
424 | static unsigned int mpb_sectors(struct imsm_super *mpb, |
425 | unsigned int sector_size) | |
87eb16df | 426 | { |
f36a9ecd | 427 | return sector_count(__le32_to_cpu(mpb->mpb_size), sector_size); |
cdddbdbc DW |
428 | } |
429 | ||
ba2de7ba DW |
430 | struct intel_dev { |
431 | struct imsm_dev *dev; | |
432 | struct intel_dev *next; | |
f21e18ca | 433 | unsigned index; |
ba2de7ba DW |
434 | }; |
435 | ||
88654014 LM |
436 | struct intel_hba { |
437 | enum sys_dev_type type; | |
438 | char *path; | |
439 | char *pci_id; | |
440 | struct intel_hba *next; | |
441 | }; | |
442 | ||
1a64be56 LM |
443 | enum action { |
444 | DISK_REMOVE = 1, | |
445 | DISK_ADD | |
446 | }; | |
cdddbdbc DW |
447 | /* internal representation of IMSM metadata */ |
448 | struct intel_super { | |
449 | union { | |
949c47a0 DW |
450 | void *buf; /* O_DIRECT buffer for reading/writing metadata */ |
451 | struct imsm_super *anchor; /* immovable parameters */ | |
cdddbdbc | 452 | }; |
8e59f3d8 AK |
453 | union { |
454 | void *migr_rec_buf; /* buffer for I/O operations */ | |
455 | struct migr_record *migr_rec; /* migration record */ | |
456 | }; | |
51d83f5d AK |
457 | int clean_migration_record_by_mdmon; /* when reshape is switched to next |
458 | array, it indicates that mdmon is allowed to clean migration | |
459 | record */ | |
949c47a0 | 460 | size_t len; /* size of the 'buf' allocation */ |
bbab0940 | 461 | size_t extra_space; /* extra space in 'buf' that is not used yet */ |
4d7b1503 DW |
462 | void *next_buf; /* for realloc'ing buf from the manager */ |
463 | size_t next_len; | |
c2c087e6 | 464 | int updates_pending; /* count of pending updates for mdmon */ |
bf5a934a | 465 | int current_vol; /* index of raid device undergoing creation */ |
5551b113 | 466 | unsigned long long create_offset; /* common start for 'current_vol' */ |
148acb7b | 467 | __u32 random; /* random data for seeding new family numbers */ |
ba2de7ba | 468 | struct intel_dev *devlist; |
fa7bb6f8 | 469 | unsigned int sector_size; /* sector size of used member drives */ |
cdddbdbc DW |
470 | struct dl { |
471 | struct dl *next; | |
472 | int index; | |
473 | __u8 serial[MAX_RAID_SERIAL_LEN]; | |
474 | int major, minor; | |
475 | char *devname; | |
b9f594fe | 476 | struct imsm_disk disk; |
cdddbdbc | 477 | int fd; |
0dcecb2e DW |
478 | int extent_cnt; |
479 | struct extent *e; /* for determining freespace @ create */ | |
efb30e7f | 480 | int raiddisk; /* slot to fill in autolayout */ |
1a64be56 | 481 | enum action action; |
ca0748fa | 482 | } *disks, *current_disk; |
1a64be56 LM |
483 | struct dl *disk_mgmt_list; /* list of disks to add/remove while mdmon |
484 | active */ | |
47ee5a45 | 485 | struct dl *missing; /* disks removed while we weren't looking */ |
43dad3d6 | 486 | struct bbm_log *bbm_log; |
88654014 | 487 | struct intel_hba *hba; /* device path of the raid controller for this metadata */ |
88c32bb1 | 488 | const struct imsm_orom *orom; /* platform firmware support */ |
a2b97981 | 489 | struct intel_super *next; /* (temp) list for disambiguating family_num */ |
928f1424 | 490 | struct md_bb bb; /* memory for get_bad_blocks call */ |
a2b97981 DW |
491 | }; |
492 | ||
493 | struct intel_disk { | |
494 | struct imsm_disk disk; | |
495 | #define IMSM_UNKNOWN_OWNER (-1) | |
496 | int owner; | |
497 | struct intel_disk *next; | |
cdddbdbc DW |
498 | }; |
499 | ||
aa19fdd4 MT |
500 | /** |
501 | * struct extent - reserved space details. | |
502 | * @start: start offset. | |
503 | * @size: size of reservation, set to 0 for metadata reservation. | |
504 | * @vol: index of the volume, meaningful if &size is set. | |
505 | */ | |
c2c087e6 DW |
506 | struct extent { |
507 | unsigned long long start, size; | |
aa19fdd4 | 508 | int vol; |
c2c087e6 DW |
509 | }; |
510 | ||
694575e7 KW |
511 | /* definitions of reshape process types */ |
512 | enum imsm_reshape_type { | |
513 | CH_TAKEOVER, | |
b5347799 | 514 | CH_MIGRATION, |
7abc9871 | 515 | CH_ARRAY_SIZE, |
694575e7 KW |
516 | }; |
517 | ||
88758e9d DW |
518 | /* definition of messages passed to imsm_process_update */ |
519 | enum imsm_update_type { | |
520 | update_activate_spare, | |
8273f55e | 521 | update_create_array, |
33414a01 | 522 | update_kill_array, |
aa534678 | 523 | update_rename_array, |
1a64be56 | 524 | update_add_remove_disk, |
78b10e66 | 525 | update_reshape_container_disks, |
48c5303a | 526 | update_reshape_migration, |
2d40f3a1 AK |
527 | update_takeover, |
528 | update_general_migration_checkpoint, | |
f3871fdc | 529 | update_size_change, |
bbab0940 | 530 | update_prealloc_badblocks_mem, |
e6e9dd3f | 531 | update_rwh_policy, |
88758e9d DW |
532 | }; |
533 | ||
534 | struct imsm_update_activate_spare { | |
535 | enum imsm_update_type type; | |
d23fe947 | 536 | struct dl *dl; |
88758e9d DW |
537 | int slot; |
538 | int array; | |
539 | struct imsm_update_activate_spare *next; | |
540 | }; | |
541 | ||
78b10e66 | 542 | struct geo_params { |
4dd2df09 | 543 | char devnm[32]; |
78b10e66 | 544 | char *dev_name; |
d04f65f4 | 545 | unsigned long long size; |
78b10e66 N |
546 | int level; |
547 | int layout; | |
548 | int chunksize; | |
549 | int raid_disks; | |
550 | }; | |
551 | ||
bb025c2f KW |
552 | enum takeover_direction { |
553 | R10_TO_R0, | |
554 | R0_TO_R10 | |
555 | }; | |
556 | struct imsm_update_takeover { | |
557 | enum imsm_update_type type; | |
558 | int subarray; | |
559 | enum takeover_direction direction; | |
560 | }; | |
78b10e66 N |
561 | |
562 | struct imsm_update_reshape { | |
563 | enum imsm_update_type type; | |
564 | int old_raid_disks; | |
565 | int new_raid_disks; | |
48c5303a PC |
566 | |
567 | int new_disks[1]; /* new_raid_disks - old_raid_disks makedev number */ | |
568 | }; | |
569 | ||
570 | struct imsm_update_reshape_migration { | |
571 | enum imsm_update_type type; | |
572 | int old_raid_disks; | |
573 | int new_raid_disks; | |
574 | /* fields for array migration changes | |
575 | */ | |
576 | int subdev; | |
577 | int new_level; | |
578 | int new_layout; | |
4bba0439 | 579 | int new_chunksize; |
48c5303a | 580 | |
d195167d | 581 | int new_disks[1]; /* new_raid_disks - old_raid_disks makedev number */ |
78b10e66 N |
582 | }; |
583 | ||
f3871fdc AK |
584 | struct imsm_update_size_change { |
585 | enum imsm_update_type type; | |
586 | int subdev; | |
587 | long long new_size; | |
588 | }; | |
589 | ||
2d40f3a1 AK |
590 | struct imsm_update_general_migration_checkpoint { |
591 | enum imsm_update_type type; | |
4036e7ee | 592 | __u64 curr_migr_unit; |
2d40f3a1 AK |
593 | }; |
594 | ||
54c2c1ea DW |
595 | struct disk_info { |
596 | __u8 serial[MAX_RAID_SERIAL_LEN]; | |
597 | }; | |
598 | ||
8273f55e DW |
599 | struct imsm_update_create_array { |
600 | enum imsm_update_type type; | |
8273f55e | 601 | int dev_idx; |
6a3e913e | 602 | struct imsm_dev dev; |
8273f55e DW |
603 | }; |
604 | ||
33414a01 DW |
605 | struct imsm_update_kill_array { |
606 | enum imsm_update_type type; | |
607 | int dev_idx; | |
608 | }; | |
609 | ||
aa534678 DW |
610 | struct imsm_update_rename_array { |
611 | enum imsm_update_type type; | |
612 | __u8 name[MAX_RAID_SERIAL_LEN]; | |
613 | int dev_idx; | |
614 | }; | |
615 | ||
1a64be56 | 616 | struct imsm_update_add_remove_disk { |
43dad3d6 DW |
617 | enum imsm_update_type type; |
618 | }; | |
619 | ||
bbab0940 TM |
620 | struct imsm_update_prealloc_bb_mem { |
621 | enum imsm_update_type type; | |
622 | }; | |
623 | ||
e6e9dd3f AP |
624 | struct imsm_update_rwh_policy { |
625 | enum imsm_update_type type; | |
626 | int new_policy; | |
627 | int dev_idx; | |
628 | }; | |
629 | ||
88654014 LM |
630 | static const char *_sys_dev_type[] = { |
631 | [SYS_DEV_UNKNOWN] = "Unknown", | |
632 | [SYS_DEV_SAS] = "SAS", | |
614902f6 | 633 | [SYS_DEV_SATA] = "SATA", |
60f0f54d | 634 | [SYS_DEV_NVME] = "NVMe", |
75350d87 KF |
635 | [SYS_DEV_VMD] = "VMD", |
636 | [SYS_DEV_SATA_VMD] = "SATA VMD" | |
88654014 LM |
637 | }; |
638 | ||
420dafcd N |
639 | static int no_platform = -1; |
640 | ||
641 | static int check_no_platform(void) | |
642 | { | |
643 | static const char search[] = "mdadm.imsm.test=1"; | |
644 | FILE *fp; | |
645 | ||
646 | if (no_platform >= 0) | |
647 | return no_platform; | |
648 | ||
649 | if (check_env("IMSM_NO_PLATFORM")) { | |
650 | no_platform = 1; | |
651 | return 1; | |
652 | } | |
653 | fp = fopen("/proc/cmdline", "r"); | |
654 | if (fp) { | |
655 | char *l = conf_line(fp); | |
656 | char *w = l; | |
657 | ||
cf1577bf MG |
658 | if (l == NULL) { |
659 | fclose(fp); | |
660 | return 0; | |
661 | } | |
662 | ||
420dafcd N |
663 | do { |
664 | if (strcmp(w, search) == 0) | |
665 | no_platform = 1; | |
666 | w = dl_next(w); | |
667 | } while (w != l); | |
668 | free_line(l); | |
669 | fclose(fp); | |
670 | if (no_platform >= 0) | |
671 | return no_platform; | |
672 | } | |
673 | no_platform = 0; | |
674 | return 0; | |
675 | } | |
676 | ||
677 | void imsm_set_no_platform(int v) | |
678 | { | |
679 | no_platform = v; | |
680 | } | |
681 | ||
88654014 LM |
682 | const char *get_sys_dev_type(enum sys_dev_type type) |
683 | { | |
684 | if (type >= SYS_DEV_MAX) | |
685 | type = SYS_DEV_UNKNOWN; | |
686 | ||
687 | return _sys_dev_type[type]; | |
688 | } | |
689 | ||
690 | static struct intel_hba * alloc_intel_hba(struct sys_dev *device) | |
691 | { | |
503975b9 N |
692 | struct intel_hba *result = xmalloc(sizeof(*result)); |
693 | ||
694 | result->type = device->type; | |
695 | result->path = xstrdup(device->path); | |
696 | result->next = NULL; | |
697 | if (result->path && (result->pci_id = strrchr(result->path, '/')) != NULL) | |
698 | result->pci_id++; | |
699 | ||
88654014 LM |
700 | return result; |
701 | } | |
702 | ||
703 | static struct intel_hba * find_intel_hba(struct intel_hba *hba, struct sys_dev *device) | |
704 | { | |
594dc1b8 JS |
705 | struct intel_hba *result; |
706 | ||
88654014 LM |
707 | for (result = hba; result; result = result->next) { |
708 | if (result->type == device->type && strcmp(result->path, device->path) == 0) | |
709 | break; | |
710 | } | |
711 | return result; | |
712 | } | |
713 | ||
b4cf4cba | 714 | static int attach_hba_to_super(struct intel_super *super, struct sys_dev *device) |
88654014 LM |
715 | { |
716 | struct intel_hba *hba; | |
717 | ||
718 | /* check if disk attached to Intel HBA */ | |
719 | hba = find_intel_hba(super->hba, device); | |
720 | if (hba != NULL) | |
721 | return 1; | |
722 | /* Check if HBA is already attached to super */ | |
723 | if (super->hba == NULL) { | |
724 | super->hba = alloc_intel_hba(device); | |
725 | return 1; | |
6b781d33 AP |
726 | } |
727 | ||
728 | hba = super->hba; | |
729 | /* Intel metadata allows for all disks attached to the same type HBA. | |
614902f6 | 730 | * Do not support HBA types mixing |
6b781d33 AP |
731 | */ |
732 | if (device->type != hba->type) | |
88654014 | 733 | return 2; |
6b781d33 AP |
734 | |
735 | /* Multiple same type HBAs can be used if they share the same OROM */ | |
736 | const struct imsm_orom *device_orom = get_orom_by_device_id(device->dev_id); | |
737 | ||
738 | if (device_orom != super->orom) | |
739 | return 2; | |
740 | ||
741 | while (hba->next) | |
742 | hba = hba->next; | |
743 | ||
744 | hba->next = alloc_intel_hba(device); | |
745 | return 1; | |
88654014 LM |
746 | } |
747 | ||
748 | static struct sys_dev* find_disk_attached_hba(int fd, const char *devname) | |
749 | { | |
9bc4ae77 | 750 | struct sys_dev *list, *elem; |
88654014 LM |
751 | char *disk_path; |
752 | ||
753 | if ((list = find_intel_devices()) == NULL) | |
754 | return 0; | |
755 | ||
4389ce73 | 756 | if (!is_fd_valid(fd)) |
88654014 LM |
757 | disk_path = (char *) devname; |
758 | else | |
7c798f87 | 759 | disk_path = diskfd_to_devpath(fd, 1, NULL); |
88654014 | 760 | |
9bc4ae77 | 761 | if (!disk_path) |
88654014 | 762 | return 0; |
88654014 | 763 | |
9bc4ae77 N |
764 | for (elem = list; elem; elem = elem->next) |
765 | if (path_attached_to_hba(disk_path, elem->path)) | |
5d2434d1 | 766 | break; |
9bc4ae77 | 767 | |
88654014 LM |
768 | if (disk_path != devname) |
769 | free(disk_path); | |
88654014 | 770 | |
5d2434d1 | 771 | return elem; |
88654014 LM |
772 | } |
773 | ||
d424212e N |
774 | static int find_intel_hba_capability(int fd, struct intel_super *super, |
775 | char *devname); | |
f2f5c343 | 776 | |
cdddbdbc DW |
777 | static struct supertype *match_metadata_desc_imsm(char *arg) |
778 | { | |
779 | struct supertype *st; | |
780 | ||
781 | if (strcmp(arg, "imsm") != 0 && | |
782 | strcmp(arg, "default") != 0 | |
783 | ) | |
784 | return NULL; | |
785 | ||
503975b9 | 786 | st = xcalloc(1, sizeof(*st)); |
cdddbdbc DW |
787 | st->ss = &super_imsm; |
788 | st->max_devs = IMSM_MAX_DEVICES; | |
789 | st->minor_version = 0; | |
790 | st->sb = NULL; | |
791 | return st; | |
792 | } | |
793 | ||
cdddbdbc DW |
794 | static __u8 *get_imsm_version(struct imsm_super *mpb) |
795 | { | |
796 | return &mpb->sig[MPB_SIG_LEN]; | |
797 | } | |
798 | ||
949c47a0 DW |
799 | /* retrieve a disk directly from the anchor when the anchor is known to be |
800 | * up-to-date, currently only at load time | |
801 | */ | |
802 | static struct imsm_disk *__get_imsm_disk(struct imsm_super *mpb, __u8 index) | |
cdddbdbc | 803 | { |
949c47a0 | 804 | if (index >= mpb->num_disks) |
cdddbdbc DW |
805 | return NULL; |
806 | return &mpb->disk[index]; | |
807 | } | |
808 | ||
95d07a2c LM |
809 | /* retrieve the disk description based on a index of the disk |
810 | * in the sub-array | |
811 | */ | |
812 | static struct dl *get_imsm_dl_disk(struct intel_super *super, __u8 index) | |
949c47a0 | 813 | { |
b9f594fe DW |
814 | struct dl *d; |
815 | ||
816 | for (d = super->disks; d; d = d->next) | |
817 | if (d->index == index) | |
95d07a2c LM |
818 | return d; |
819 | ||
820 | return NULL; | |
821 | } | |
822 | /* retrieve a disk from the parsed metadata */ | |
823 | static struct imsm_disk *get_imsm_disk(struct intel_super *super, __u8 index) | |
824 | { | |
825 | struct dl *dl; | |
826 | ||
827 | dl = get_imsm_dl_disk(super, index); | |
828 | if (dl) | |
829 | return &dl->disk; | |
830 | ||
b9f594fe | 831 | return NULL; |
949c47a0 DW |
832 | } |
833 | ||
834 | /* generate a checksum directly from the anchor when the anchor is known to be | |
835 | * up-to-date, currently only at load or write_super after coalescing | |
836 | */ | |
837 | static __u32 __gen_imsm_checksum(struct imsm_super *mpb) | |
cdddbdbc DW |
838 | { |
839 | __u32 end = mpb->mpb_size / sizeof(end); | |
840 | __u32 *p = (__u32 *) mpb; | |
841 | __u32 sum = 0; | |
842 | ||
5d500228 N |
843 | while (end--) { |
844 | sum += __le32_to_cpu(*p); | |
97f734fd N |
845 | p++; |
846 | } | |
cdddbdbc | 847 | |
5d500228 | 848 | return sum - __le32_to_cpu(mpb->check_sum); |
cdddbdbc DW |
849 | } |
850 | ||
a965f303 DW |
851 | static size_t sizeof_imsm_map(struct imsm_map *map) |
852 | { | |
853 | return sizeof(struct imsm_map) + sizeof(__u32) * (map->num_members - 1); | |
854 | } | |
855 | ||
856 | struct imsm_map *get_imsm_map(struct imsm_dev *dev, int second_map) | |
cdddbdbc | 857 | { |
5e7b0330 AK |
858 | /* A device can have 2 maps if it is in the middle of a migration. |
859 | * If second_map is: | |
238c0a71 AK |
860 | * MAP_0 - we return the first map |
861 | * MAP_1 - we return the second map if it exists, else NULL | |
862 | * MAP_X - we return the second map if it exists, else the first | |
5e7b0330 | 863 | */ |
a965f303 | 864 | struct imsm_map *map = &dev->vol.map[0]; |
9535fc47 | 865 | struct imsm_map *map2 = NULL; |
a965f303 | 866 | |
9535fc47 AK |
867 | if (dev->vol.migr_state) |
868 | map2 = (void *)map + sizeof_imsm_map(map); | |
a965f303 | 869 | |
9535fc47 | 870 | switch (second_map) { |
3b451610 | 871 | case MAP_0: |
9535fc47 | 872 | break; |
3b451610 | 873 | case MAP_1: |
9535fc47 AK |
874 | map = map2; |
875 | break; | |
238c0a71 | 876 | case MAP_X: |
9535fc47 AK |
877 | if (map2) |
878 | map = map2; | |
879 | break; | |
9535fc47 AK |
880 | default: |
881 | map = NULL; | |
882 | } | |
883 | return map; | |
5e7b0330 | 884 | |
a965f303 | 885 | } |
cdddbdbc | 886 | |
3393c6af DW |
887 | /* return the size of the device. |
888 | * migr_state increases the returned size if map[0] were to be duplicated | |
889 | */ | |
890 | static size_t sizeof_imsm_dev(struct imsm_dev *dev, int migr_state) | |
a965f303 DW |
891 | { |
892 | size_t size = sizeof(*dev) - sizeof(struct imsm_map) + | |
238c0a71 | 893 | sizeof_imsm_map(get_imsm_map(dev, MAP_0)); |
cdddbdbc DW |
894 | |
895 | /* migrating means an additional map */ | |
a965f303 | 896 | if (dev->vol.migr_state) |
238c0a71 | 897 | size += sizeof_imsm_map(get_imsm_map(dev, MAP_1)); |
3393c6af | 898 | else if (migr_state) |
238c0a71 | 899 | size += sizeof_imsm_map(get_imsm_map(dev, MAP_0)); |
cdddbdbc DW |
900 | |
901 | return size; | |
902 | } | |
903 | ||
54c2c1ea DW |
904 | /* retrieve disk serial number list from a metadata update */ |
905 | static struct disk_info *get_disk_info(struct imsm_update_create_array *update) | |
906 | { | |
907 | void *u = update; | |
908 | struct disk_info *inf; | |
909 | ||
910 | inf = u + sizeof(*update) - sizeof(struct imsm_dev) + | |
911 | sizeof_imsm_dev(&update->dev, 0); | |
912 | ||
913 | return inf; | |
914 | } | |
54c2c1ea | 915 | |
756a15f3 MG |
916 | /** |
917 | * __get_imsm_dev() - Get device with index from imsm_super. | |
918 | * @mpb: &imsm_super pointer, not NULL. | |
919 | * @index: Device index. | |
920 | * | |
921 | * Function works as non-NULL, aborting in such a case, | |
922 | * when NULL would be returned. | |
923 | * | |
924 | * Device index should be in range 0 up to num_raid_devs. | |
925 | * Function assumes the index was already verified. | |
926 | * Index must be valid, otherwise abort() is called. | |
927 | * | |
928 | * Return: Pointer to corresponding imsm_dev. | |
929 | * | |
930 | */ | |
949c47a0 | 931 | static struct imsm_dev *__get_imsm_dev(struct imsm_super *mpb, __u8 index) |
cdddbdbc DW |
932 | { |
933 | int offset; | |
934 | int i; | |
935 | void *_mpb = mpb; | |
936 | ||
949c47a0 | 937 | if (index >= mpb->num_raid_devs) |
756a15f3 | 938 | goto error; |
cdddbdbc DW |
939 | |
940 | /* devices start after all disks */ | |
941 | offset = ((void *) &mpb->disk[mpb->num_disks]) - _mpb; | |
942 | ||
756a15f3 | 943 | for (i = 0; i <= index; i++, offset += sizeof_imsm_dev(_mpb + offset, 0)) |
cdddbdbc DW |
944 | if (i == index) |
945 | return _mpb + offset; | |
756a15f3 MG |
946 | error: |
947 | pr_err("cannot find imsm_dev with index %u in imsm_super\n", index); | |
948 | abort(); | |
cdddbdbc DW |
949 | } |
950 | ||
756a15f3 MG |
951 | /** |
952 | * get_imsm_dev() - Get device with index from intel_super. | |
953 | * @super: &intel_super pointer, not NULL. | |
954 | * @index: Device index. | |
955 | * | |
956 | * Function works as non-NULL, aborting in such a case, | |
957 | * when NULL would be returned. | |
958 | * | |
959 | * Device index should be in range 0 up to num_raid_devs. | |
960 | * Function assumes the index was already verified. | |
961 | * Index must be valid, otherwise abort() is called. | |
962 | * | |
963 | * Return: Pointer to corresponding imsm_dev. | |
964 | * | |
965 | */ | |
949c47a0 DW |
966 | static struct imsm_dev *get_imsm_dev(struct intel_super *super, __u8 index) |
967 | { | |
ba2de7ba DW |
968 | struct intel_dev *dv; |
969 | ||
949c47a0 | 970 | if (index >= super->anchor->num_raid_devs) |
756a15f3 MG |
971 | goto error; |
972 | ||
ba2de7ba DW |
973 | for (dv = super->devlist; dv; dv = dv->next) |
974 | if (dv->index == index) | |
975 | return dv->dev; | |
756a15f3 MG |
976 | error: |
977 | pr_err("cannot find imsm_dev with index %u in intel_super\n", index); | |
978 | abort(); | |
949c47a0 DW |
979 | } |
980 | ||
8d67477f TM |
981 | static inline unsigned long long __le48_to_cpu(const struct bbm_log_block_addr |
982 | *addr) | |
983 | { | |
984 | return ((((__u64)__le32_to_cpu(addr->dw1)) << 16) | | |
985 | __le16_to_cpu(addr->w1)); | |
986 | } | |
987 | ||
988 | static inline struct bbm_log_block_addr __cpu_to_le48(unsigned long long sec) | |
989 | { | |
990 | struct bbm_log_block_addr addr; | |
991 | ||
992 | addr.w1 = __cpu_to_le16((__u16)(sec & 0xffff)); | |
993 | addr.dw1 = __cpu_to_le32((__u32)(sec >> 16) & 0xffffffff); | |
994 | return addr; | |
995 | } | |
996 | ||
8d67477f TM |
997 | /* get size of the bbm log */ |
998 | static __u32 get_imsm_bbm_log_size(struct bbm_log *log) | |
999 | { | |
1000 | if (!log || log->entry_count == 0) | |
1001 | return 0; | |
1002 | ||
1003 | return sizeof(log->signature) + | |
1004 | sizeof(log->entry_count) + | |
1005 | log->entry_count * sizeof(struct bbm_log_entry); | |
1006 | } | |
6f50473f TM |
1007 | |
1008 | /* check if bad block is not partially stored in bbm log */ | |
1009 | static int is_stored_in_bbm(struct bbm_log *log, const __u8 idx, const unsigned | |
1010 | long long sector, const int length, __u32 *pos) | |
1011 | { | |
1012 | __u32 i; | |
1013 | ||
1014 | for (i = *pos; i < log->entry_count; i++) { | |
1015 | struct bbm_log_entry *entry = &log->marked_block_entries[i]; | |
1016 | unsigned long long bb_start; | |
1017 | unsigned long long bb_end; | |
1018 | ||
1019 | bb_start = __le48_to_cpu(&entry->defective_block_start); | |
1020 | bb_end = bb_start + (entry->marked_count + 1); | |
1021 | ||
1022 | if ((entry->disk_ordinal == idx) && (bb_start >= sector) && | |
1023 | (bb_end <= sector + length)) { | |
1024 | *pos = i; | |
1025 | return 1; | |
1026 | } | |
1027 | } | |
1028 | return 0; | |
1029 | } | |
1030 | ||
1031 | /* record new bad block in bbm log */ | |
1032 | static int record_new_badblock(struct bbm_log *log, const __u8 idx, unsigned | |
1033 | long long sector, int length) | |
1034 | { | |
1035 | int new_bb = 0; | |
1036 | __u32 pos = 0; | |
1037 | struct bbm_log_entry *entry = NULL; | |
1038 | ||
1039 | while (is_stored_in_bbm(log, idx, sector, length, &pos)) { | |
1040 | struct bbm_log_entry *e = &log->marked_block_entries[pos]; | |
1041 | ||
1042 | if ((e->marked_count + 1 == BBM_LOG_MAX_LBA_ENTRY_VAL) && | |
1043 | (__le48_to_cpu(&e->defective_block_start) == sector)) { | |
1044 | sector += BBM_LOG_MAX_LBA_ENTRY_VAL; | |
1045 | length -= BBM_LOG_MAX_LBA_ENTRY_VAL; | |
1046 | pos = pos + 1; | |
1047 | continue; | |
1048 | } | |
1049 | entry = e; | |
1050 | break; | |
1051 | } | |
1052 | ||
1053 | if (entry) { | |
1054 | int cnt = (length <= BBM_LOG_MAX_LBA_ENTRY_VAL) ? length : | |
1055 | BBM_LOG_MAX_LBA_ENTRY_VAL; | |
1056 | entry->defective_block_start = __cpu_to_le48(sector); | |
1057 | entry->marked_count = cnt - 1; | |
1058 | if (cnt == length) | |
1059 | return 1; | |
1060 | sector += cnt; | |
1061 | length -= cnt; | |
1062 | } | |
1063 | ||
1064 | new_bb = ROUND_UP(length, BBM_LOG_MAX_LBA_ENTRY_VAL) / | |
1065 | BBM_LOG_MAX_LBA_ENTRY_VAL; | |
1066 | if (log->entry_count + new_bb > BBM_LOG_MAX_ENTRIES) | |
1067 | return 0; | |
1068 | ||
1069 | while (length > 0) { | |
1070 | int cnt = (length <= BBM_LOG_MAX_LBA_ENTRY_VAL) ? length : | |
1071 | BBM_LOG_MAX_LBA_ENTRY_VAL; | |
1072 | struct bbm_log_entry *entry = | |
1073 | &log->marked_block_entries[log->entry_count]; | |
1074 | ||
1075 | entry->defective_block_start = __cpu_to_le48(sector); | |
1076 | entry->marked_count = cnt - 1; | |
1077 | entry->disk_ordinal = idx; | |
1078 | ||
1079 | sector += cnt; | |
1080 | length -= cnt; | |
1081 | ||
1082 | log->entry_count++; | |
1083 | } | |
1084 | ||
1085 | return new_bb; | |
1086 | } | |
c07a5a4f | 1087 | |
4c9e8c1e TM |
1088 | /* clear all bad blocks for given disk */ |
1089 | static void clear_disk_badblocks(struct bbm_log *log, const __u8 idx) | |
1090 | { | |
1091 | __u32 i = 0; | |
1092 | ||
1093 | while (i < log->entry_count) { | |
1094 | struct bbm_log_entry *entries = log->marked_block_entries; | |
1095 | ||
1096 | if (entries[i].disk_ordinal == idx) { | |
1097 | if (i < log->entry_count - 1) | |
1098 | entries[i] = entries[log->entry_count - 1]; | |
1099 | log->entry_count--; | |
1100 | } else { | |
1101 | i++; | |
1102 | } | |
1103 | } | |
1104 | } | |
1105 | ||
c07a5a4f TM |
1106 | /* clear given bad block */ |
1107 | static int clear_badblock(struct bbm_log *log, const __u8 idx, const unsigned | |
1108 | long long sector, const int length) { | |
1109 | __u32 i = 0; | |
1110 | ||
1111 | while (i < log->entry_count) { | |
1112 | struct bbm_log_entry *entries = log->marked_block_entries; | |
1113 | ||
1114 | if ((entries[i].disk_ordinal == idx) && | |
1115 | (__le48_to_cpu(&entries[i].defective_block_start) == | |
1116 | sector) && (entries[i].marked_count + 1 == length)) { | |
1117 | if (i < log->entry_count - 1) | |
1118 | entries[i] = entries[log->entry_count - 1]; | |
1119 | log->entry_count--; | |
1120 | break; | |
1121 | } | |
1122 | i++; | |
1123 | } | |
1124 | ||
1125 | return 1; | |
1126 | } | |
8d67477f TM |
1127 | |
1128 | /* allocate and load BBM log from metadata */ | |
1129 | static int load_bbm_log(struct intel_super *super) | |
1130 | { | |
1131 | struct imsm_super *mpb = super->anchor; | |
1132 | __u32 bbm_log_size = __le32_to_cpu(mpb->bbm_log_size); | |
1133 | ||
1134 | super->bbm_log = xcalloc(1, sizeof(struct bbm_log)); | |
1135 | if (!super->bbm_log) | |
1136 | return 1; | |
1137 | ||
1138 | if (bbm_log_size) { | |
1139 | struct bbm_log *log = (void *)mpb + | |
1140 | __le32_to_cpu(mpb->mpb_size) - bbm_log_size; | |
1141 | ||
1142 | __u32 entry_count; | |
1143 | ||
1144 | if (bbm_log_size < sizeof(log->signature) + | |
1145 | sizeof(log->entry_count)) | |
1146 | return 2; | |
1147 | ||
1148 | entry_count = __le32_to_cpu(log->entry_count); | |
1149 | if ((__le32_to_cpu(log->signature) != BBM_LOG_SIGNATURE) || | |
1150 | (entry_count > BBM_LOG_MAX_ENTRIES)) | |
1151 | return 3; | |
1152 | ||
1153 | if (bbm_log_size != | |
1154 | sizeof(log->signature) + sizeof(log->entry_count) + | |
1155 | entry_count * sizeof(struct bbm_log_entry)) | |
1156 | return 4; | |
1157 | ||
1158 | memcpy(super->bbm_log, log, bbm_log_size); | |
1159 | } else { | |
1160 | super->bbm_log->signature = __cpu_to_le32(BBM_LOG_SIGNATURE); | |
1161 | super->bbm_log->entry_count = 0; | |
1162 | } | |
1163 | ||
1164 | return 0; | |
1165 | } | |
1166 | ||
b12796be TM |
1167 | /* checks if bad block is within volume boundaries */ |
1168 | static int is_bad_block_in_volume(const struct bbm_log_entry *entry, | |
1169 | const unsigned long long start_sector, | |
1170 | const unsigned long long size) | |
1171 | { | |
1172 | unsigned long long bb_start; | |
1173 | unsigned long long bb_end; | |
1174 | ||
1175 | bb_start = __le48_to_cpu(&entry->defective_block_start); | |
1176 | bb_end = bb_start + (entry->marked_count + 1); | |
1177 | ||
1178 | if (((bb_start >= start_sector) && (bb_start < start_sector + size)) || | |
1179 | ((bb_end >= start_sector) && (bb_end <= start_sector + size))) | |
1180 | return 1; | |
1181 | ||
1182 | return 0; | |
1183 | } | |
1184 | ||
1185 | /* get list of bad blocks on a drive for a volume */ | |
1186 | static void get_volume_badblocks(const struct bbm_log *log, const __u8 idx, | |
1187 | const unsigned long long start_sector, | |
1188 | const unsigned long long size, | |
1189 | struct md_bb *bbs) | |
1190 | { | |
1191 | __u32 count = 0; | |
1192 | __u32 i; | |
1193 | ||
1194 | for (i = 0; i < log->entry_count; i++) { | |
1195 | const struct bbm_log_entry *ent = | |
1196 | &log->marked_block_entries[i]; | |
1197 | struct md_bb_entry *bb; | |
1198 | ||
1199 | if ((ent->disk_ordinal == idx) && | |
1200 | is_bad_block_in_volume(ent, start_sector, size)) { | |
1201 | ||
1202 | if (!bbs->entries) { | |
1203 | bbs->entries = xmalloc(BBM_LOG_MAX_ENTRIES * | |
1204 | sizeof(*bb)); | |
1205 | if (!bbs->entries) | |
1206 | break; | |
1207 | } | |
1208 | ||
1209 | bb = &bbs->entries[count++]; | |
1210 | bb->sector = __le48_to_cpu(&ent->defective_block_start); | |
1211 | bb->length = ent->marked_count + 1; | |
1212 | } | |
1213 | } | |
1214 | bbs->count = count; | |
1215 | } | |
1216 | ||
98130f40 AK |
1217 | /* |
1218 | * for second_map: | |
238c0a71 AK |
1219 | * == MAP_0 get first map |
1220 | * == MAP_1 get second map | |
1221 | * == MAP_X than get map according to the current migr_state | |
98130f40 AK |
1222 | */ |
1223 | static __u32 get_imsm_ord_tbl_ent(struct imsm_dev *dev, | |
1224 | int slot, | |
1225 | int second_map) | |
7eef0453 DW |
1226 | { |
1227 | struct imsm_map *map; | |
1228 | ||
5e7b0330 | 1229 | map = get_imsm_map(dev, second_map); |
7eef0453 | 1230 | |
ff077194 DW |
1231 | /* top byte identifies disk under rebuild */ |
1232 | return __le32_to_cpu(map->disk_ord_tbl[slot]); | |
1233 | } | |
1234 | ||
1235 | #define ord_to_idx(ord) (((ord) << 8) >> 8) | |
98130f40 | 1236 | static __u32 get_imsm_disk_idx(struct imsm_dev *dev, int slot, int second_map) |
ff077194 | 1237 | { |
98130f40 | 1238 | __u32 ord = get_imsm_ord_tbl_ent(dev, slot, second_map); |
ff077194 DW |
1239 | |
1240 | return ord_to_idx(ord); | |
7eef0453 DW |
1241 | } |
1242 | ||
be73972f DW |
1243 | static void set_imsm_ord_tbl_ent(struct imsm_map *map, int slot, __u32 ord) |
1244 | { | |
1245 | map->disk_ord_tbl[slot] = __cpu_to_le32(ord); | |
1246 | } | |
1247 | ||
76c152ca | 1248 | static int get_imsm_disk_slot(struct imsm_map *map, const unsigned int idx) |
620b1713 DW |
1249 | { |
1250 | int slot; | |
1251 | __u32 ord; | |
1252 | ||
1253 | for (slot = 0; slot < map->num_members; slot++) { | |
1254 | ord = __le32_to_cpu(map->disk_ord_tbl[slot]); | |
1255 | if (ord_to_idx(ord) == idx) | |
1256 | return slot; | |
1257 | } | |
1258 | ||
76c152ca | 1259 | return IMSM_STATUS_ERROR; |
620b1713 DW |
1260 | } |
1261 | ||
cdddbdbc DW |
1262 | static int get_imsm_raid_level(struct imsm_map *map) |
1263 | { | |
1264 | if (map->raid_level == 1) { | |
1265 | if (map->num_members == 2) | |
1266 | return 1; | |
1267 | else | |
1268 | return 10; | |
1269 | } | |
1270 | ||
1271 | return map->raid_level; | |
1272 | } | |
1273 | ||
76c152ca MT |
1274 | /** |
1275 | * get_disk_slot_in_dev() - retrieve disk slot from &imsm_dev. | |
1276 | * @super: &intel_super pointer, not NULL. | |
1277 | * @dev_idx: imsm device index. | |
1278 | * @idx: disk index. | |
1279 | * | |
1280 | * Return: Slot on success, IMSM_STATUS_ERROR otherwise. | |
1281 | */ | |
1282 | static int get_disk_slot_in_dev(struct intel_super *super, const __u8 dev_idx, | |
1283 | const unsigned int idx) | |
1284 | { | |
1285 | struct imsm_dev *dev = get_imsm_dev(super, dev_idx); | |
1286 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
1287 | ||
1288 | return get_imsm_disk_slot(map, idx); | |
1289 | } | |
1290 | ||
c2c087e6 DW |
1291 | static int cmp_extent(const void *av, const void *bv) |
1292 | { | |
1293 | const struct extent *a = av; | |
1294 | const struct extent *b = bv; | |
1295 | if (a->start < b->start) | |
1296 | return -1; | |
1297 | if (a->start > b->start) | |
1298 | return 1; | |
1299 | return 0; | |
1300 | } | |
1301 | ||
0dcecb2e | 1302 | static int count_memberships(struct dl *dl, struct intel_super *super) |
c2c087e6 | 1303 | { |
c2c087e6 | 1304 | int memberships = 0; |
620b1713 | 1305 | int i; |
c2c087e6 | 1306 | |
76c152ca MT |
1307 | for (i = 0; i < super->anchor->num_raid_devs; i++) |
1308 | if (get_disk_slot_in_dev(super, i, dl->index) >= 0) | |
620b1713 | 1309 | memberships++; |
0dcecb2e DW |
1310 | |
1311 | return memberships; | |
1312 | } | |
1313 | ||
b81221b7 CA |
1314 | static __u32 imsm_min_reserved_sectors(struct intel_super *super); |
1315 | ||
486720e0 | 1316 | static int split_ull(unsigned long long n, void *lo, void *hi) |
5551b113 CA |
1317 | { |
1318 | if (lo == 0 || hi == 0) | |
1319 | return 1; | |
486720e0 JS |
1320 | __put_unaligned32(__cpu_to_le32((__u32)n), lo); |
1321 | __put_unaligned32(__cpu_to_le32((n >> 32)), hi); | |
5551b113 CA |
1322 | return 0; |
1323 | } | |
1324 | ||
1325 | static unsigned long long join_u32(__u32 lo, __u32 hi) | |
1326 | { | |
1327 | return (unsigned long long)__le32_to_cpu(lo) | | |
1328 | (((unsigned long long)__le32_to_cpu(hi)) << 32); | |
1329 | } | |
1330 | ||
1331 | static unsigned long long total_blocks(struct imsm_disk *disk) | |
1332 | { | |
1333 | if (disk == NULL) | |
1334 | return 0; | |
1335 | return join_u32(disk->total_blocks_lo, disk->total_blocks_hi); | |
1336 | } | |
1337 | ||
1c275381 MT |
1338 | /** |
1339 | * imsm_num_data_members() - get data drives count for an array. | |
1340 | * @map: Map to analyze. | |
1341 | * | |
1342 | * num_data_members value represents minimal count of drives for level. | |
1343 | * The name of the property could be misleading for RAID5 with asymmetric layout | |
1344 | * because some data required to be calculated from parity. | |
1345 | * The property is extracted from level and num_members value. | |
1346 | * | |
1347 | * Return: num_data_members value on success, zero otherwise. | |
1348 | */ | |
1349 | static __u8 imsm_num_data_members(struct imsm_map *map) | |
1350 | { | |
1351 | switch (get_imsm_raid_level(map)) { | |
1352 | case 0: | |
1353 | return map->num_members; | |
1354 | case 1: | |
1355 | case 10: | |
1356 | return map->num_members / 2; | |
1357 | case 5: | |
1358 | return map->num_members - 1; | |
1359 | default: | |
1360 | dprintf("unsupported raid level\n"); | |
1361 | return 0; | |
1362 | } | |
1363 | } | |
1364 | ||
5551b113 CA |
1365 | static unsigned long long pba_of_lba0(struct imsm_map *map) |
1366 | { | |
1367 | if (map == NULL) | |
1368 | return 0; | |
1369 | return join_u32(map->pba_of_lba0_lo, map->pba_of_lba0_hi); | |
1370 | } | |
1371 | ||
1372 | static unsigned long long blocks_per_member(struct imsm_map *map) | |
1373 | { | |
1374 | if (map == NULL) | |
1375 | return 0; | |
1376 | return join_u32(map->blocks_per_member_lo, map->blocks_per_member_hi); | |
1377 | } | |
1378 | ||
1379 | static unsigned long long num_data_stripes(struct imsm_map *map) | |
1380 | { | |
1381 | if (map == NULL) | |
1382 | return 0; | |
1383 | return join_u32(map->num_data_stripes_lo, map->num_data_stripes_hi); | |
1384 | } | |
1385 | ||
4036e7ee MT |
1386 | static unsigned long long vol_curr_migr_unit(struct imsm_dev *dev) |
1387 | { | |
1388 | if (dev == NULL) | |
1389 | return 0; | |
1390 | ||
1391 | return join_u32(dev->vol.curr_migr_unit_lo, dev->vol.curr_migr_unit_hi); | |
1392 | } | |
1393 | ||
fcc2c9da MD |
1394 | static unsigned long long imsm_dev_size(struct imsm_dev *dev) |
1395 | { | |
1396 | if (dev == NULL) | |
1397 | return 0; | |
1398 | return join_u32(dev->size_low, dev->size_high); | |
1399 | } | |
1400 | ||
9f421827 PB |
1401 | static unsigned long long migr_chkp_area_pba(struct migr_record *migr_rec) |
1402 | { | |
1403 | if (migr_rec == NULL) | |
1404 | return 0; | |
1405 | return join_u32(migr_rec->ckpt_area_pba_lo, | |
1406 | migr_rec->ckpt_area_pba_hi); | |
1407 | } | |
1408 | ||
1409 | static unsigned long long current_migr_unit(struct migr_record *migr_rec) | |
1410 | { | |
1411 | if (migr_rec == NULL) | |
1412 | return 0; | |
1413 | return join_u32(migr_rec->curr_migr_unit_lo, | |
1414 | migr_rec->curr_migr_unit_hi); | |
1415 | } | |
1416 | ||
1417 | static unsigned long long migr_dest_1st_member_lba(struct migr_record *migr_rec) | |
1418 | { | |
1419 | if (migr_rec == NULL) | |
1420 | return 0; | |
1421 | return join_u32(migr_rec->dest_1st_member_lba_lo, | |
1422 | migr_rec->dest_1st_member_lba_hi); | |
1423 | } | |
1424 | ||
1425 | static unsigned long long get_num_migr_units(struct migr_record *migr_rec) | |
1426 | { | |
1427 | if (migr_rec == NULL) | |
1428 | return 0; | |
1429 | return join_u32(migr_rec->num_migr_units_lo, | |
1430 | migr_rec->num_migr_units_hi); | |
1431 | } | |
1432 | ||
5551b113 CA |
1433 | static void set_total_blocks(struct imsm_disk *disk, unsigned long long n) |
1434 | { | |
1435 | split_ull(n, &disk->total_blocks_lo, &disk->total_blocks_hi); | |
1436 | } | |
1437 | ||
1c275381 MT |
1438 | /** |
1439 | * set_num_domains() - Set number of domains for an array. | |
1440 | * @map: Map to be updated. | |
1441 | * | |
1442 | * num_domains property represents copies count of each data drive, thus make | |
1443 | * it meaningful only for RAID1 and RAID10. IMSM supports two domains for | |
1444 | * raid1 and raid10. | |
1445 | */ | |
1446 | static void set_num_domains(struct imsm_map *map) | |
1447 | { | |
1448 | int level = get_imsm_raid_level(map); | |
1449 | ||
1450 | if (level == 1 || level == 10) | |
1451 | map->num_domains = 2; | |
1452 | else | |
1453 | map->num_domains = 1; | |
1454 | } | |
1455 | ||
5551b113 CA |
1456 | static void set_pba_of_lba0(struct imsm_map *map, unsigned long long n) |
1457 | { | |
1458 | split_ull(n, &map->pba_of_lba0_lo, &map->pba_of_lba0_hi); | |
1459 | } | |
1460 | ||
1461 | static void set_blocks_per_member(struct imsm_map *map, unsigned long long n) | |
1462 | { | |
1463 | split_ull(n, &map->blocks_per_member_lo, &map->blocks_per_member_hi); | |
1464 | } | |
1465 | ||
1466 | static void set_num_data_stripes(struct imsm_map *map, unsigned long long n) | |
1467 | { | |
1468 | split_ull(n, &map->num_data_stripes_lo, &map->num_data_stripes_hi); | |
1469 | } | |
1470 | ||
1c275381 MT |
1471 | /** |
1472 | * update_num_data_stripes() - Calculate and update num_data_stripes value. | |
1473 | * @map: map to be updated. | |
1474 | * @dev_size: size of volume. | |
1475 | * | |
1476 | * num_data_stripes value is addictionally divided by num_domains, therefore for | |
1477 | * levels where num_domains is not 1, nds is a part of real value. | |
1478 | */ | |
1479 | static void update_num_data_stripes(struct imsm_map *map, | |
1480 | unsigned long long dev_size) | |
1481 | { | |
1482 | unsigned long long nds = dev_size / imsm_num_data_members(map); | |
1483 | ||
1484 | nds /= map->num_domains; | |
1485 | nds /= map->blocks_per_strip; | |
1486 | set_num_data_stripes(map, nds); | |
1487 | } | |
1488 | ||
4036e7ee MT |
1489 | static void set_vol_curr_migr_unit(struct imsm_dev *dev, unsigned long long n) |
1490 | { | |
1491 | if (dev == NULL) | |
1492 | return; | |
1493 | ||
1494 | split_ull(n, &dev->vol.curr_migr_unit_lo, &dev->vol.curr_migr_unit_hi); | |
1495 | } | |
1496 | ||
fcc2c9da MD |
1497 | static void set_imsm_dev_size(struct imsm_dev *dev, unsigned long long n) |
1498 | { | |
1499 | split_ull(n, &dev->size_low, &dev->size_high); | |
1500 | } | |
1501 | ||
9f421827 PB |
1502 | static void set_migr_chkp_area_pba(struct migr_record *migr_rec, |
1503 | unsigned long long n) | |
1504 | { | |
1505 | split_ull(n, &migr_rec->ckpt_area_pba_lo, &migr_rec->ckpt_area_pba_hi); | |
1506 | } | |
1507 | ||
1508 | static void set_current_migr_unit(struct migr_record *migr_rec, | |
1509 | unsigned long long n) | |
1510 | { | |
1511 | split_ull(n, &migr_rec->curr_migr_unit_lo, | |
1512 | &migr_rec->curr_migr_unit_hi); | |
1513 | } | |
1514 | ||
1515 | static void set_migr_dest_1st_member_lba(struct migr_record *migr_rec, | |
1516 | unsigned long long n) | |
1517 | { | |
1518 | split_ull(n, &migr_rec->dest_1st_member_lba_lo, | |
1519 | &migr_rec->dest_1st_member_lba_hi); | |
1520 | } | |
1521 | ||
1522 | static void set_num_migr_units(struct migr_record *migr_rec, | |
1523 | unsigned long long n) | |
1524 | { | |
1525 | split_ull(n, &migr_rec->num_migr_units_lo, | |
1526 | &migr_rec->num_migr_units_hi); | |
1527 | } | |
1528 | ||
44490938 MD |
1529 | static unsigned long long per_dev_array_size(struct imsm_map *map) |
1530 | { | |
1531 | unsigned long long array_size = 0; | |
1532 | ||
1533 | if (map == NULL) | |
1534 | return array_size; | |
1535 | ||
1536 | array_size = num_data_stripes(map) * map->blocks_per_strip; | |
1537 | if (get_imsm_raid_level(map) == 1 || get_imsm_raid_level(map) == 10) | |
1538 | array_size *= 2; | |
1539 | ||
1540 | return array_size; | |
1541 | } | |
1542 | ||
05501181 PB |
1543 | static struct extent *get_extents(struct intel_super *super, struct dl *dl, |
1544 | int get_minimal_reservation) | |
0dcecb2e DW |
1545 | { |
1546 | /* find a list of used extents on the given physical device */ | |
0dcecb2e | 1547 | int memberships = count_memberships(dl, super); |
aa19fdd4 MT |
1548 | struct extent *rv = xcalloc(memberships + 1, sizeof(struct extent)); |
1549 | struct extent *e = rv; | |
1550 | int i; | |
b276dd33 DW |
1551 | __u32 reservation; |
1552 | ||
1553 | /* trim the reserved area for spares, so they can join any array | |
1554 | * regardless of whether the OROM has assigned sectors from the | |
1555 | * IMSM_RESERVED_SECTORS region | |
1556 | */ | |
05501181 | 1557 | if (dl->index == -1 || get_minimal_reservation) |
b81221b7 | 1558 | reservation = imsm_min_reserved_sectors(super); |
b276dd33 DW |
1559 | else |
1560 | reservation = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
0dcecb2e | 1561 | |
949c47a0 DW |
1562 | for (i = 0; i < super->anchor->num_raid_devs; i++) { |
1563 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
238c0a71 | 1564 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
c2c087e6 | 1565 | |
620b1713 | 1566 | if (get_imsm_disk_slot(map, dl->index) >= 0) { |
5551b113 | 1567 | e->start = pba_of_lba0(map); |
44490938 | 1568 | e->size = per_dev_array_size(map); |
aa19fdd4 | 1569 | e->vol = i; |
620b1713 | 1570 | e++; |
c2c087e6 DW |
1571 | } |
1572 | } | |
1573 | qsort(rv, memberships, sizeof(*rv), cmp_extent); | |
1574 | ||
1011e834 | 1575 | /* determine the start of the metadata |
14e8215b DW |
1576 | * when no raid devices are defined use the default |
1577 | * ...otherwise allow the metadata to truncate the value | |
1578 | * as is the case with older versions of imsm | |
1579 | */ | |
1580 | if (memberships) { | |
1581 | struct extent *last = &rv[memberships - 1]; | |
5551b113 | 1582 | unsigned long long remainder; |
14e8215b | 1583 | |
5551b113 | 1584 | remainder = total_blocks(&dl->disk) - (last->start + last->size); |
dda5855f DW |
1585 | /* round down to 1k block to satisfy precision of the kernel |
1586 | * 'size' interface | |
1587 | */ | |
1588 | remainder &= ~1UL; | |
1589 | /* make sure remainder is still sane */ | |
f21e18ca | 1590 | if (remainder < (unsigned)ROUND_UP(super->len, 512) >> 9) |
dda5855f | 1591 | remainder = ROUND_UP(super->len, 512) >> 9; |
14e8215b DW |
1592 | if (reservation > remainder) |
1593 | reservation = remainder; | |
1594 | } | |
5551b113 | 1595 | e->start = total_blocks(&dl->disk) - reservation; |
c2c087e6 DW |
1596 | e->size = 0; |
1597 | return rv; | |
1598 | } | |
1599 | ||
14e8215b DW |
1600 | /* try to determine how much space is reserved for metadata from |
1601 | * the last get_extents() entry, otherwise fallback to the | |
1602 | * default | |
1603 | */ | |
1604 | static __u32 imsm_reserved_sectors(struct intel_super *super, struct dl *dl) | |
1605 | { | |
1606 | struct extent *e; | |
1607 | int i; | |
1608 | __u32 rv; | |
1609 | ||
1610 | /* for spares just return a minimal reservation which will grow | |
1611 | * once the spare is picked up by an array | |
1612 | */ | |
1613 | if (dl->index == -1) | |
1614 | return MPB_SECTOR_CNT; | |
1615 | ||
05501181 | 1616 | e = get_extents(super, dl, 0); |
14e8215b DW |
1617 | if (!e) |
1618 | return MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
1619 | ||
1620 | /* scroll to last entry */ | |
1621 | for (i = 0; e[i].size; i++) | |
1622 | continue; | |
1623 | ||
5551b113 | 1624 | rv = total_blocks(&dl->disk) - e[i].start; |
14e8215b DW |
1625 | |
1626 | free(e); | |
1627 | ||
1628 | return rv; | |
1629 | } | |
1630 | ||
25ed7e59 DW |
1631 | static int is_spare(struct imsm_disk *disk) |
1632 | { | |
1633 | return (disk->status & SPARE_DISK) == SPARE_DISK; | |
1634 | } | |
1635 | ||
1636 | static int is_configured(struct imsm_disk *disk) | |
1637 | { | |
1638 | return (disk->status & CONFIGURED_DISK) == CONFIGURED_DISK; | |
1639 | } | |
1640 | ||
1641 | static int is_failed(struct imsm_disk *disk) | |
1642 | { | |
1643 | return (disk->status & FAILED_DISK) == FAILED_DISK; | |
1644 | } | |
1645 | ||
2432ce9b AP |
1646 | static int is_journal(struct imsm_disk *disk) |
1647 | { | |
1648 | return (disk->status & JOURNAL_DISK) == JOURNAL_DISK; | |
1649 | } | |
1650 | ||
78c8028b MT |
1651 | /** |
1652 | * round_member_size_to_mb()- Round given size to closest MiB. | |
1653 | * @size: size to round in sectors. | |
b53bfba6 | 1654 | */ |
78c8028b | 1655 | static inline unsigned long long round_member_size_to_mb(unsigned long long size) |
b53bfba6 | 1656 | { |
78c8028b MT |
1657 | return (size >> SECT_PER_MB_SHIFT) << SECT_PER_MB_SHIFT; |
1658 | } | |
b53bfba6 | 1659 | |
78c8028b MT |
1660 | /** |
1661 | * round_size_to_mb()- Round given size. | |
1662 | * @array_size: size to round in sectors. | |
1663 | * @disk_count: count of data members. | |
1664 | * | |
1665 | * Get size per each data member and round it to closest MiB to ensure that data | |
1666 | * splits evenly between members. | |
1667 | * | |
1668 | * Return: Array size, rounded down. | |
1669 | */ | |
1670 | static inline unsigned long long round_size_to_mb(unsigned long long array_size, | |
1671 | unsigned int disk_count) | |
1672 | { | |
1673 | return round_member_size_to_mb(array_size / disk_count) * disk_count; | |
b53bfba6 TM |
1674 | } |
1675 | ||
8b9cd157 MK |
1676 | static int able_to_resync(int raid_level, int missing_disks) |
1677 | { | |
1678 | int max_missing_disks = 0; | |
1679 | ||
1680 | switch (raid_level) { | |
1681 | case 10: | |
1682 | max_missing_disks = 1; | |
1683 | break; | |
1684 | default: | |
1685 | max_missing_disks = 0; | |
1686 | } | |
1687 | return missing_disks <= max_missing_disks; | |
1688 | } | |
1689 | ||
b81221b7 CA |
1690 | /* try to determine how much space is reserved for metadata from |
1691 | * the last get_extents() entry on the smallest active disk, | |
1692 | * otherwise fallback to the default | |
1693 | */ | |
1694 | static __u32 imsm_min_reserved_sectors(struct intel_super *super) | |
1695 | { | |
1696 | struct extent *e; | |
1697 | int i; | |
5551b113 CA |
1698 | unsigned long long min_active; |
1699 | __u32 remainder; | |
b81221b7 CA |
1700 | __u32 rv = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; |
1701 | struct dl *dl, *dl_min = NULL; | |
1702 | ||
1703 | if (!super) | |
1704 | return rv; | |
1705 | ||
1706 | min_active = 0; | |
1707 | for (dl = super->disks; dl; dl = dl->next) { | |
1708 | if (dl->index < 0) | |
1709 | continue; | |
5551b113 CA |
1710 | unsigned long long blocks = total_blocks(&dl->disk); |
1711 | if (blocks < min_active || min_active == 0) { | |
b81221b7 | 1712 | dl_min = dl; |
5551b113 | 1713 | min_active = blocks; |
b81221b7 CA |
1714 | } |
1715 | } | |
1716 | if (!dl_min) | |
1717 | return rv; | |
1718 | ||
1719 | /* find last lba used by subarrays on the smallest active disk */ | |
05501181 | 1720 | e = get_extents(super, dl_min, 0); |
b81221b7 CA |
1721 | if (!e) |
1722 | return rv; | |
1723 | for (i = 0; e[i].size; i++) | |
1724 | continue; | |
1725 | ||
1726 | remainder = min_active - e[i].start; | |
1727 | free(e); | |
1728 | ||
1729 | /* to give priority to recovery we should not require full | |
1730 | IMSM_RESERVED_SECTORS from the spare */ | |
1731 | rv = MPB_SECTOR_CNT + NUM_BLOCKS_DIRTY_STRIPE_REGION; | |
1732 | ||
1733 | /* if real reservation is smaller use that value */ | |
1734 | return (remainder < rv) ? remainder : rv; | |
1735 | } | |
1736 | ||
195d1d76 | 1737 | static bool is_gen_migration(struct imsm_dev *dev); |
d1e02575 | 1738 | |
f36a9ecd PB |
1739 | #define IMSM_4K_DIV 8 |
1740 | ||
c47b0ff6 AK |
1741 | static __u64 blocks_per_migr_unit(struct intel_super *super, |
1742 | struct imsm_dev *dev); | |
1e5c6983 | 1743 | |
c47b0ff6 AK |
1744 | static void print_imsm_dev(struct intel_super *super, |
1745 | struct imsm_dev *dev, | |
1746 | char *uuid, | |
1747 | int disk_idx) | |
cdddbdbc DW |
1748 | { |
1749 | __u64 sz; | |
0d80bb2f | 1750 | int slot, i; |
238c0a71 AK |
1751 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
1752 | struct imsm_map *map2 = get_imsm_map(dev, MAP_1); | |
b10b37b8 | 1753 | __u32 ord; |
cdddbdbc DW |
1754 | |
1755 | printf("\n"); | |
1e7bc0ed | 1756 | printf("[%.16s]:\n", dev->volume); |
ba1b3bc8 | 1757 | printf(" Subarray : %d\n", super->current_vol); |
44470971 | 1758 | printf(" UUID : %s\n", uuid); |
dd8bcb3b AK |
1759 | printf(" RAID Level : %d", get_imsm_raid_level(map)); |
1760 | if (map2) | |
1761 | printf(" <-- %d", get_imsm_raid_level(map2)); | |
1762 | printf("\n"); | |
1763 | printf(" Members : %d", map->num_members); | |
1764 | if (map2) | |
1765 | printf(" <-- %d", map2->num_members); | |
1766 | printf("\n"); | |
0d80bb2f DW |
1767 | printf(" Slots : ["); |
1768 | for (i = 0; i < map->num_members; i++) { | |
238c0a71 | 1769 | ord = get_imsm_ord_tbl_ent(dev, i, MAP_0); |
0d80bb2f DW |
1770 | printf("%s", ord & IMSM_ORD_REBUILD ? "_" : "U"); |
1771 | } | |
dd8bcb3b AK |
1772 | printf("]"); |
1773 | if (map2) { | |
1774 | printf(" <-- ["); | |
1775 | for (i = 0; i < map2->num_members; i++) { | |
238c0a71 | 1776 | ord = get_imsm_ord_tbl_ent(dev, i, MAP_1); |
dd8bcb3b AK |
1777 | printf("%s", ord & IMSM_ORD_REBUILD ? "_" : "U"); |
1778 | } | |
1779 | printf("]"); | |
1780 | } | |
1781 | printf("\n"); | |
7095bccb AK |
1782 | printf(" Failed disk : "); |
1783 | if (map->failed_disk_num == 0xff) | |
b823c8f9 | 1784 | printf(STR_COMMON_NONE); |
7095bccb AK |
1785 | else |
1786 | printf("%i", map->failed_disk_num); | |
1787 | printf("\n"); | |
620b1713 DW |
1788 | slot = get_imsm_disk_slot(map, disk_idx); |
1789 | if (slot >= 0) { | |
238c0a71 | 1790 | ord = get_imsm_ord_tbl_ent(dev, slot, MAP_X); |
b10b37b8 DW |
1791 | printf(" This Slot : %d%s\n", slot, |
1792 | ord & IMSM_ORD_REBUILD ? " (out-of-sync)" : ""); | |
1793 | } else | |
cdddbdbc | 1794 | printf(" This Slot : ?\n"); |
84918897 | 1795 | printf(" Sector Size : %u\n", super->sector_size); |
fcc2c9da | 1796 | sz = imsm_dev_size(dev); |
84918897 MK |
1797 | printf(" Array Size : %llu%s\n", |
1798 | (unsigned long long)sz * 512 / super->sector_size, | |
cdddbdbc | 1799 | human_size(sz * 512)); |
5551b113 | 1800 | sz = blocks_per_member(map); |
84918897 MK |
1801 | printf(" Per Dev Size : %llu%s\n", |
1802 | (unsigned long long)sz * 512 / super->sector_size, | |
cdddbdbc | 1803 | human_size(sz * 512)); |
5551b113 | 1804 | printf(" Sector Offset : %llu\n", |
7d8935cb | 1805 | pba_of_lba0(map) * 512 / super->sector_size); |
5551b113 CA |
1806 | printf(" Num Stripes : %llu\n", |
1807 | num_data_stripes(map)); | |
dd8bcb3b | 1808 | printf(" Chunk Size : %u KiB", |
cdddbdbc | 1809 | __le16_to_cpu(map->blocks_per_strip) / 2); |
dd8bcb3b AK |
1810 | if (map2) |
1811 | printf(" <-- %u KiB", | |
1812 | __le16_to_cpu(map2->blocks_per_strip) / 2); | |
1813 | printf("\n"); | |
cdddbdbc | 1814 | printf(" Reserved : %d\n", __le32_to_cpu(dev->reserved_blocks)); |
8655a7b1 | 1815 | printf(" Migrate State : "); |
1484e727 DW |
1816 | if (dev->vol.migr_state) { |
1817 | if (migr_type(dev) == MIGR_INIT) | |
8655a7b1 | 1818 | printf("initialize\n"); |
1484e727 | 1819 | else if (migr_type(dev) == MIGR_REBUILD) |
8655a7b1 | 1820 | printf("rebuild\n"); |
1484e727 | 1821 | else if (migr_type(dev) == MIGR_VERIFY) |
8655a7b1 | 1822 | printf("check\n"); |
1484e727 | 1823 | else if (migr_type(dev) == MIGR_GEN_MIGR) |
8655a7b1 | 1824 | printf("general migration\n"); |
1484e727 | 1825 | else if (migr_type(dev) == MIGR_STATE_CHANGE) |
8655a7b1 | 1826 | printf("state change\n"); |
1484e727 | 1827 | else if (migr_type(dev) == MIGR_REPAIR) |
8655a7b1 | 1828 | printf("repair\n"); |
1484e727 | 1829 | else |
8655a7b1 DW |
1830 | printf("<unknown:%d>\n", migr_type(dev)); |
1831 | } else | |
1832 | printf("idle\n"); | |
3393c6af DW |
1833 | printf(" Map State : %s", map_state_str[map->map_state]); |
1834 | if (dev->vol.migr_state) { | |
238c0a71 | 1835 | struct imsm_map *map = get_imsm_map(dev, MAP_1); |
1e5c6983 | 1836 | |
b10b37b8 | 1837 | printf(" <-- %s", map_state_str[map->map_state]); |
4036e7ee | 1838 | printf("\n Checkpoint : %llu ", vol_curr_migr_unit(dev)); |
089f9d79 | 1839 | if (is_gen_migration(dev) && (slot > 1 || slot < 0)) |
464d40e8 LD |
1840 | printf("(N/A)"); |
1841 | else | |
1842 | printf("(%llu)", (unsigned long long) | |
1843 | blocks_per_migr_unit(super, dev)); | |
3393c6af DW |
1844 | } |
1845 | printf("\n"); | |
2432ce9b AP |
1846 | printf(" Dirty State : %s\n", (dev->vol.dirty & RAIDVOL_DIRTY) ? |
1847 | "dirty" : "clean"); | |
1848 | printf(" RWH Policy : "); | |
c2462068 | 1849 | if (dev->rwh_policy == RWH_OFF || dev->rwh_policy == RWH_MULTIPLE_OFF) |
2432ce9b AP |
1850 | printf("off\n"); |
1851 | else if (dev->rwh_policy == RWH_DISTRIBUTED) | |
1852 | printf("PPL distributed\n"); | |
1853 | else if (dev->rwh_policy == RWH_JOURNALING_DRIVE) | |
1854 | printf("PPL journaling drive\n"); | |
c2462068 PB |
1855 | else if (dev->rwh_policy == RWH_MULTIPLE_DISTRIBUTED) |
1856 | printf("Multiple distributed PPLs\n"); | |
1857 | else if (dev->rwh_policy == RWH_MULTIPLE_PPLS_JOURNALING_DRIVE) | |
1858 | printf("Multiple PPLs on journaling drive\n"); | |
fbc42556 JR |
1859 | else if (dev->rwh_policy == RWH_BITMAP) |
1860 | printf("Write-intent bitmap\n"); | |
2432ce9b AP |
1861 | else |
1862 | printf("<unknown:%d>\n", dev->rwh_policy); | |
ba1b3bc8 AP |
1863 | |
1864 | printf(" Volume ID : %u\n", dev->my_vol_raid_dev_num); | |
cdddbdbc DW |
1865 | } |
1866 | ||
ef5c214e MK |
1867 | static void print_imsm_disk(struct imsm_disk *disk, |
1868 | int index, | |
1869 | __u32 reserved, | |
1870 | unsigned int sector_size) { | |
1f24f035 | 1871 | char str[MAX_RAID_SERIAL_LEN + 1]; |
cdddbdbc DW |
1872 | __u64 sz; |
1873 | ||
0ec1f4e8 | 1874 | if (index < -1 || !disk) |
e9d82038 DW |
1875 | return; |
1876 | ||
cdddbdbc | 1877 | printf("\n"); |
1f24f035 | 1878 | snprintf(str, MAX_RAID_SERIAL_LEN + 1, "%s", disk->serial); |
0ec1f4e8 DW |
1879 | if (index >= 0) |
1880 | printf(" Disk%02d Serial : %s\n", index, str); | |
1881 | else | |
1882 | printf(" Disk Serial : %s\n", str); | |
2432ce9b AP |
1883 | printf(" State :%s%s%s%s\n", is_spare(disk) ? " spare" : "", |
1884 | is_configured(disk) ? " active" : "", | |
1885 | is_failed(disk) ? " failed" : "", | |
1886 | is_journal(disk) ? " journal" : ""); | |
cdddbdbc | 1887 | printf(" Id : %08x\n", __le32_to_cpu(disk->scsi_id)); |
5551b113 | 1888 | sz = total_blocks(disk) - reserved; |
ef5c214e MK |
1889 | printf(" Usable Size : %llu%s\n", |
1890 | (unsigned long long)sz * 512 / sector_size, | |
cdddbdbc DW |
1891 | human_size(sz * 512)); |
1892 | } | |
1893 | ||
de44e46f PB |
1894 | void convert_to_4k_imsm_migr_rec(struct intel_super *super) |
1895 | { | |
1896 | struct migr_record *migr_rec = super->migr_rec; | |
1897 | ||
1898 | migr_rec->blocks_per_unit /= IMSM_4K_DIV; | |
de44e46f PB |
1899 | migr_rec->dest_depth_per_unit /= IMSM_4K_DIV; |
1900 | split_ull((join_u32(migr_rec->post_migr_vol_cap, | |
1901 | migr_rec->post_migr_vol_cap_hi) / IMSM_4K_DIV), | |
1902 | &migr_rec->post_migr_vol_cap, &migr_rec->post_migr_vol_cap_hi); | |
9f421827 PB |
1903 | set_migr_chkp_area_pba(migr_rec, |
1904 | migr_chkp_area_pba(migr_rec) / IMSM_4K_DIV); | |
1905 | set_migr_dest_1st_member_lba(migr_rec, | |
1906 | migr_dest_1st_member_lba(migr_rec) / IMSM_4K_DIV); | |
de44e46f PB |
1907 | } |
1908 | ||
f36a9ecd PB |
1909 | void convert_to_4k_imsm_disk(struct imsm_disk *disk) |
1910 | { | |
1911 | set_total_blocks(disk, (total_blocks(disk)/IMSM_4K_DIV)); | |
1912 | } | |
1913 | ||
1914 | void convert_to_4k(struct intel_super *super) | |
1915 | { | |
1916 | struct imsm_super *mpb = super->anchor; | |
1917 | struct imsm_disk *disk; | |
1918 | int i; | |
e4467bc7 | 1919 | __u32 bbm_log_size = __le32_to_cpu(mpb->bbm_log_size); |
f36a9ecd PB |
1920 | |
1921 | for (i = 0; i < mpb->num_disks ; i++) { | |
1922 | disk = __get_imsm_disk(mpb, i); | |
1923 | /* disk */ | |
1924 | convert_to_4k_imsm_disk(disk); | |
1925 | } | |
1926 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
1927 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
1928 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
1929 | /* dev */ | |
fcc2c9da | 1930 | set_imsm_dev_size(dev, imsm_dev_size(dev)/IMSM_4K_DIV); |
4036e7ee MT |
1931 | set_vol_curr_migr_unit(dev, |
1932 | vol_curr_migr_unit(dev) / IMSM_4K_DIV); | |
f36a9ecd PB |
1933 | |
1934 | /* map0 */ | |
1935 | set_blocks_per_member(map, blocks_per_member(map)/IMSM_4K_DIV); | |
1936 | map->blocks_per_strip /= IMSM_4K_DIV; | |
1937 | set_pba_of_lba0(map, pba_of_lba0(map)/IMSM_4K_DIV); | |
1938 | ||
1939 | if (dev->vol.migr_state) { | |
1940 | /* map1 */ | |
1941 | map = get_imsm_map(dev, MAP_1); | |
1942 | set_blocks_per_member(map, | |
1943 | blocks_per_member(map)/IMSM_4K_DIV); | |
1944 | map->blocks_per_strip /= IMSM_4K_DIV; | |
1945 | set_pba_of_lba0(map, pba_of_lba0(map)/IMSM_4K_DIV); | |
1946 | } | |
1947 | } | |
e4467bc7 TM |
1948 | if (bbm_log_size) { |
1949 | struct bbm_log *log = (void *)mpb + | |
1950 | __le32_to_cpu(mpb->mpb_size) - bbm_log_size; | |
1951 | __u32 i; | |
1952 | ||
1953 | for (i = 0; i < log->entry_count; i++) { | |
1954 | struct bbm_log_entry *entry = | |
1955 | &log->marked_block_entries[i]; | |
1956 | ||
1957 | __u8 count = entry->marked_count + 1; | |
1958 | unsigned long long sector = | |
1959 | __le48_to_cpu(&entry->defective_block_start); | |
1960 | ||
1961 | entry->defective_block_start = | |
1962 | __cpu_to_le48(sector/IMSM_4K_DIV); | |
1963 | entry->marked_count = max(count/IMSM_4K_DIV, 1) - 1; | |
1964 | } | |
1965 | } | |
f36a9ecd PB |
1966 | |
1967 | mpb->check_sum = __gen_imsm_checksum(mpb); | |
1968 | } | |
1969 | ||
520e69e2 AK |
1970 | void examine_migr_rec_imsm(struct intel_super *super) |
1971 | { | |
1972 | struct migr_record *migr_rec = super->migr_rec; | |
1973 | struct imsm_super *mpb = super->anchor; | |
1974 | int i; | |
1975 | ||
1976 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
1977 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
3136abe5 | 1978 | struct imsm_map *map; |
b4ab44d8 | 1979 | int slot = -1; |
3136abe5 | 1980 | |
195d1d76 | 1981 | if (is_gen_migration(dev) == false) |
520e69e2 AK |
1982 | continue; |
1983 | ||
1984 | printf("\nMigration Record Information:"); | |
3136abe5 | 1985 | |
44bfe6df AK |
1986 | /* first map under migration */ |
1987 | map = get_imsm_map(dev, MAP_0); | |
76c152ca | 1988 | |
3136abe5 AK |
1989 | if (map) |
1990 | slot = get_imsm_disk_slot(map, super->disks->index); | |
089f9d79 | 1991 | if (map == NULL || slot > 1 || slot < 0) { |
520e69e2 AK |
1992 | printf(" Empty\n "); |
1993 | printf("Examine one of first two disks in array\n"); | |
1994 | break; | |
1995 | } | |
1996 | printf("\n Status : "); | |
1997 | if (__le32_to_cpu(migr_rec->rec_status) == UNIT_SRC_NORMAL) | |
1998 | printf("Normal\n"); | |
1999 | else | |
2000 | printf("Contains Data\n"); | |
9f421827 PB |
2001 | printf(" Current Unit : %llu\n", |
2002 | current_migr_unit(migr_rec)); | |
520e69e2 AK |
2003 | printf(" Family : %u\n", |
2004 | __le32_to_cpu(migr_rec->family_num)); | |
2005 | printf(" Ascending : %u\n", | |
2006 | __le32_to_cpu(migr_rec->ascending_migr)); | |
2007 | printf(" Blocks Per Unit : %u\n", | |
2008 | __le32_to_cpu(migr_rec->blocks_per_unit)); | |
2009 | printf(" Dest. Depth Per Unit : %u\n", | |
2010 | __le32_to_cpu(migr_rec->dest_depth_per_unit)); | |
9f421827 PB |
2011 | printf(" Checkpoint Area pba : %llu\n", |
2012 | migr_chkp_area_pba(migr_rec)); | |
2013 | printf(" First member lba : %llu\n", | |
2014 | migr_dest_1st_member_lba(migr_rec)); | |
2015 | printf(" Total Number of Units : %llu\n", | |
2016 | get_num_migr_units(migr_rec)); | |
2017 | printf(" Size of volume : %llu\n", | |
2018 | join_u32(migr_rec->post_migr_vol_cap, | |
2019 | migr_rec->post_migr_vol_cap_hi)); | |
520e69e2 AK |
2020 | printf(" Record was read from : %u\n", |
2021 | __le32_to_cpu(migr_rec->ckpt_read_disk_num)); | |
2022 | ||
2023 | break; | |
2024 | } | |
2025 | } | |
f36a9ecd | 2026 | |
de44e46f PB |
2027 | void convert_from_4k_imsm_migr_rec(struct intel_super *super) |
2028 | { | |
2029 | struct migr_record *migr_rec = super->migr_rec; | |
2030 | ||
2031 | migr_rec->blocks_per_unit *= IMSM_4K_DIV; | |
de44e46f PB |
2032 | migr_rec->dest_depth_per_unit *= IMSM_4K_DIV; |
2033 | split_ull((join_u32(migr_rec->post_migr_vol_cap, | |
2034 | migr_rec->post_migr_vol_cap_hi) * IMSM_4K_DIV), | |
2035 | &migr_rec->post_migr_vol_cap, | |
2036 | &migr_rec->post_migr_vol_cap_hi); | |
9f421827 PB |
2037 | set_migr_chkp_area_pba(migr_rec, |
2038 | migr_chkp_area_pba(migr_rec) * IMSM_4K_DIV); | |
2039 | set_migr_dest_1st_member_lba(migr_rec, | |
2040 | migr_dest_1st_member_lba(migr_rec) * IMSM_4K_DIV); | |
de44e46f PB |
2041 | } |
2042 | ||
f36a9ecd PB |
2043 | void convert_from_4k(struct intel_super *super) |
2044 | { | |
2045 | struct imsm_super *mpb = super->anchor; | |
2046 | struct imsm_disk *disk; | |
2047 | int i; | |
e4467bc7 | 2048 | __u32 bbm_log_size = __le32_to_cpu(mpb->bbm_log_size); |
f36a9ecd PB |
2049 | |
2050 | for (i = 0; i < mpb->num_disks ; i++) { | |
2051 | disk = __get_imsm_disk(mpb, i); | |
2052 | /* disk */ | |
2053 | set_total_blocks(disk, (total_blocks(disk)*IMSM_4K_DIV)); | |
2054 | } | |
2055 | ||
2056 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
2057 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
2058 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
2059 | /* dev */ | |
fcc2c9da | 2060 | set_imsm_dev_size(dev, imsm_dev_size(dev)*IMSM_4K_DIV); |
4036e7ee MT |
2061 | set_vol_curr_migr_unit(dev, |
2062 | vol_curr_migr_unit(dev) * IMSM_4K_DIV); | |
f36a9ecd PB |
2063 | |
2064 | /* map0 */ | |
2065 | set_blocks_per_member(map, blocks_per_member(map)*IMSM_4K_DIV); | |
2066 | map->blocks_per_strip *= IMSM_4K_DIV; | |
2067 | set_pba_of_lba0(map, pba_of_lba0(map)*IMSM_4K_DIV); | |
2068 | ||
2069 | if (dev->vol.migr_state) { | |
2070 | /* map1 */ | |
2071 | map = get_imsm_map(dev, MAP_1); | |
2072 | set_blocks_per_member(map, | |
2073 | blocks_per_member(map)*IMSM_4K_DIV); | |
2074 | map->blocks_per_strip *= IMSM_4K_DIV; | |
2075 | set_pba_of_lba0(map, pba_of_lba0(map)*IMSM_4K_DIV); | |
2076 | } | |
2077 | } | |
e4467bc7 TM |
2078 | if (bbm_log_size) { |
2079 | struct bbm_log *log = (void *)mpb + | |
2080 | __le32_to_cpu(mpb->mpb_size) - bbm_log_size; | |
2081 | __u32 i; | |
2082 | ||
2083 | for (i = 0; i < log->entry_count; i++) { | |
2084 | struct bbm_log_entry *entry = | |
2085 | &log->marked_block_entries[i]; | |
2086 | ||
2087 | __u8 count = entry->marked_count + 1; | |
2088 | unsigned long long sector = | |
2089 | __le48_to_cpu(&entry->defective_block_start); | |
2090 | ||
2091 | entry->defective_block_start = | |
2092 | __cpu_to_le48(sector*IMSM_4K_DIV); | |
2093 | entry->marked_count = count*IMSM_4K_DIV - 1; | |
2094 | } | |
2095 | } | |
f36a9ecd PB |
2096 | |
2097 | mpb->check_sum = __gen_imsm_checksum(mpb); | |
2098 | } | |
2099 | ||
19482bcc AK |
2100 | /******************************************************************************* |
2101 | * function: imsm_check_attributes | |
2102 | * Description: Function checks if features represented by attributes flags | |
1011e834 | 2103 | * are supported by mdadm. |
19482bcc AK |
2104 | * Parameters: |
2105 | * attributes - Attributes read from metadata | |
2106 | * Returns: | |
1011e834 N |
2107 | * 0 - passed attributes contains unsupported features flags |
2108 | * 1 - all features are supported | |
19482bcc AK |
2109 | ******************************************************************************/ |
2110 | static int imsm_check_attributes(__u32 attributes) | |
2111 | { | |
2112 | int ret_val = 1; | |
418f9b36 N |
2113 | __u32 not_supported = MPB_ATTRIB_SUPPORTED^0xffffffff; |
2114 | ||
2115 | not_supported &= ~MPB_ATTRIB_IGNORED; | |
19482bcc AK |
2116 | |
2117 | not_supported &= attributes; | |
2118 | if (not_supported) { | |
e7b84f9d | 2119 | pr_err("(IMSM): Unsupported attributes : %x\n", |
418f9b36 | 2120 | (unsigned)__le32_to_cpu(not_supported)); |
19482bcc AK |
2121 | if (not_supported & MPB_ATTRIB_CHECKSUM_VERIFY) { |
2122 | dprintf("\t\tMPB_ATTRIB_CHECKSUM_VERIFY \n"); | |
2123 | not_supported ^= MPB_ATTRIB_CHECKSUM_VERIFY; | |
2124 | } | |
2125 | if (not_supported & MPB_ATTRIB_2TB) { | |
2126 | dprintf("\t\tMPB_ATTRIB_2TB\n"); | |
2127 | not_supported ^= MPB_ATTRIB_2TB; | |
2128 | } | |
2129 | if (not_supported & MPB_ATTRIB_RAID0) { | |
2130 | dprintf("\t\tMPB_ATTRIB_RAID0\n"); | |
2131 | not_supported ^= MPB_ATTRIB_RAID0; | |
2132 | } | |
2133 | if (not_supported & MPB_ATTRIB_RAID1) { | |
2134 | dprintf("\t\tMPB_ATTRIB_RAID1\n"); | |
2135 | not_supported ^= MPB_ATTRIB_RAID1; | |
2136 | } | |
2137 | if (not_supported & MPB_ATTRIB_RAID10) { | |
2138 | dprintf("\t\tMPB_ATTRIB_RAID10\n"); | |
2139 | not_supported ^= MPB_ATTRIB_RAID10; | |
2140 | } | |
2141 | if (not_supported & MPB_ATTRIB_RAID1E) { | |
2142 | dprintf("\t\tMPB_ATTRIB_RAID1E\n"); | |
2143 | not_supported ^= MPB_ATTRIB_RAID1E; | |
2144 | } | |
2145 | if (not_supported & MPB_ATTRIB_RAID5) { | |
2146 | dprintf("\t\tMPB_ATTRIB_RAID5\n"); | |
2147 | not_supported ^= MPB_ATTRIB_RAID5; | |
2148 | } | |
2149 | if (not_supported & MPB_ATTRIB_RAIDCNG) { | |
2150 | dprintf("\t\tMPB_ATTRIB_RAIDCNG\n"); | |
2151 | not_supported ^= MPB_ATTRIB_RAIDCNG; | |
2152 | } | |
2153 | if (not_supported & MPB_ATTRIB_BBM) { | |
2154 | dprintf("\t\tMPB_ATTRIB_BBM\n"); | |
2155 | not_supported ^= MPB_ATTRIB_BBM; | |
2156 | } | |
2157 | if (not_supported & MPB_ATTRIB_CHECKSUM_VERIFY) { | |
2158 | dprintf("\t\tMPB_ATTRIB_CHECKSUM_VERIFY (== MPB_ATTRIB_LEGACY)\n"); | |
2159 | not_supported ^= MPB_ATTRIB_CHECKSUM_VERIFY; | |
2160 | } | |
2161 | if (not_supported & MPB_ATTRIB_EXP_STRIPE_SIZE) { | |
2162 | dprintf("\t\tMPB_ATTRIB_EXP_STRIP_SIZE\n"); | |
2163 | not_supported ^= MPB_ATTRIB_EXP_STRIPE_SIZE; | |
2164 | } | |
2165 | if (not_supported & MPB_ATTRIB_2TB_DISK) { | |
2166 | dprintf("\t\tMPB_ATTRIB_2TB_DISK\n"); | |
2167 | not_supported ^= MPB_ATTRIB_2TB_DISK; | |
2168 | } | |
2169 | if (not_supported & MPB_ATTRIB_NEVER_USE2) { | |
2170 | dprintf("\t\tMPB_ATTRIB_NEVER_USE2\n"); | |
2171 | not_supported ^= MPB_ATTRIB_NEVER_USE2; | |
2172 | } | |
2173 | if (not_supported & MPB_ATTRIB_NEVER_USE) { | |
2174 | dprintf("\t\tMPB_ATTRIB_NEVER_USE\n"); | |
2175 | not_supported ^= MPB_ATTRIB_NEVER_USE; | |
2176 | } | |
2177 | ||
2178 | if (not_supported) | |
1ade5cc1 | 2179 | dprintf("(IMSM): Unknown attributes : %x\n", not_supported); |
19482bcc AK |
2180 | |
2181 | ret_val = 0; | |
2182 | } | |
2183 | ||
2184 | return ret_val; | |
2185 | } | |
2186 | ||
a5d85af7 | 2187 | static void getinfo_super_imsm(struct supertype *st, struct mdinfo *info, char *map); |
44470971 | 2188 | |
cdddbdbc DW |
2189 | static void examine_super_imsm(struct supertype *st, char *homehost) |
2190 | { | |
2191 | struct intel_super *super = st->sb; | |
949c47a0 | 2192 | struct imsm_super *mpb = super->anchor; |
cdddbdbc DW |
2193 | char str[MAX_SIGNATURE_LENGTH]; |
2194 | int i; | |
27fd6274 DW |
2195 | struct mdinfo info; |
2196 | char nbuf[64]; | |
cdddbdbc | 2197 | __u32 sum; |
14e8215b | 2198 | __u32 reserved = imsm_reserved_sectors(super, super->disks); |
94827db3 | 2199 | struct dl *dl; |
e48aed3c | 2200 | time_t creation_time; |
27fd6274 | 2201 | |
618f4e6d XN |
2202 | strncpy(str, (char *)mpb->sig, MPB_SIG_LEN); |
2203 | str[MPB_SIG_LEN-1] = '\0'; | |
cdddbdbc | 2204 | printf(" Magic : %s\n", str); |
cdddbdbc | 2205 | printf(" Version : %s\n", get_imsm_version(mpb)); |
148acb7b | 2206 | printf(" Orig Family : %08x\n", __le32_to_cpu(mpb->orig_family_num)); |
cdddbdbc DW |
2207 | printf(" Family : %08x\n", __le32_to_cpu(mpb->family_num)); |
2208 | printf(" Generation : %08x\n", __le32_to_cpu(mpb->generation_num)); | |
e48aed3c AP |
2209 | creation_time = __le64_to_cpu(mpb->creation_time); |
2210 | printf(" Creation Time : %.24s\n", | |
2211 | creation_time ? ctime(&creation_time) : "Unknown"); | |
19482bcc AK |
2212 | printf(" Attributes : "); |
2213 | if (imsm_check_attributes(mpb->attributes)) | |
2214 | printf("All supported\n"); | |
2215 | else | |
2216 | printf("not supported\n"); | |
a5d85af7 | 2217 | getinfo_super_imsm(st, &info, NULL); |
ba65d917 | 2218 | fname_from_uuid(&info, nbuf); |
27fd6274 | 2219 | printf(" UUID : %s\n", nbuf + 5); |
cdddbdbc DW |
2220 | sum = __le32_to_cpu(mpb->check_sum); |
2221 | printf(" Checksum : %08x %s\n", sum, | |
949c47a0 | 2222 | __gen_imsm_checksum(mpb) == sum ? "correct" : "incorrect"); |
f36a9ecd | 2223 | printf(" MPB Sectors : %d\n", mpb_sectors(mpb, super->sector_size)); |
cdddbdbc DW |
2224 | printf(" Disks : %d\n", mpb->num_disks); |
2225 | printf(" RAID Devices : %d\n", mpb->num_raid_devs); | |
ef5c214e MK |
2226 | print_imsm_disk(__get_imsm_disk(mpb, super->disks->index), |
2227 | super->disks->index, reserved, super->sector_size); | |
8d67477f | 2228 | if (get_imsm_bbm_log_size(super->bbm_log)) { |
604b746f JD |
2229 | struct bbm_log *log = super->bbm_log; |
2230 | ||
2231 | printf("\n"); | |
2232 | printf("Bad Block Management Log:\n"); | |
2233 | printf(" Log Size : %d\n", __le32_to_cpu(mpb->bbm_log_size)); | |
2234 | printf(" Signature : %x\n", __le32_to_cpu(log->signature)); | |
2235 | printf(" Entry Count : %d\n", __le32_to_cpu(log->entry_count)); | |
604b746f | 2236 | } |
44470971 DW |
2237 | for (i = 0; i < mpb->num_raid_devs; i++) { |
2238 | struct mdinfo info; | |
2239 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
2240 | ||
2241 | super->current_vol = i; | |
a5d85af7 | 2242 | getinfo_super_imsm(st, &info, NULL); |
ba65d917 | 2243 | fname_from_uuid(&info, nbuf); |
c47b0ff6 | 2244 | print_imsm_dev(super, dev, nbuf + 5, super->disks->index); |
44470971 | 2245 | } |
cdddbdbc DW |
2246 | for (i = 0; i < mpb->num_disks; i++) { |
2247 | if (i == super->disks->index) | |
2248 | continue; | |
ef5c214e MK |
2249 | print_imsm_disk(__get_imsm_disk(mpb, i), i, reserved, |
2250 | super->sector_size); | |
cdddbdbc | 2251 | } |
94827db3 | 2252 | |
0ec1f4e8 DW |
2253 | for (dl = super->disks; dl; dl = dl->next) |
2254 | if (dl->index == -1) | |
ef5c214e MK |
2255 | print_imsm_disk(&dl->disk, -1, reserved, |
2256 | super->sector_size); | |
520e69e2 AK |
2257 | |
2258 | examine_migr_rec_imsm(super); | |
cdddbdbc DW |
2259 | } |
2260 | ||
061f2c6a | 2261 | static void brief_examine_super_imsm(struct supertype *st, int verbose) |
cdddbdbc | 2262 | { |
27fd6274 | 2263 | /* We just write a generic IMSM ARRAY entry */ |
ff54de6e N |
2264 | struct mdinfo info; |
2265 | char nbuf[64]; | |
2266 | ||
a5d85af7 | 2267 | getinfo_super_imsm(st, &info, NULL); |
ba65d917 | 2268 | fname_from_uuid(&info, nbuf); |
4737ae25 N |
2269 | printf("ARRAY metadata=imsm UUID=%s\n", nbuf + 5); |
2270 | } | |
2271 | ||
2272 | static void brief_examine_subarrays_imsm(struct supertype *st, int verbose) | |
2273 | { | |
2274 | /* We just write a generic IMSM ARRAY entry */ | |
2275 | struct mdinfo info; | |
2276 | char nbuf[64]; | |
2277 | char nbuf1[64]; | |
2278 | struct intel_super *super = st->sb; | |
2279 | int i; | |
2280 | ||
2281 | if (!super->anchor->num_raid_devs) | |
2282 | return; | |
2283 | ||
a5d85af7 | 2284 | getinfo_super_imsm(st, &info, NULL); |
ba65d917 | 2285 | fname_from_uuid(&info, nbuf); |
1e7bc0ed DW |
2286 | for (i = 0; i < super->anchor->num_raid_devs; i++) { |
2287 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
2288 | ||
2289 | super->current_vol = i; | |
a5d85af7 | 2290 | getinfo_super_imsm(st, &info, NULL); |
ba65d917 | 2291 | fname_from_uuid(&info, nbuf1); |
b9ce7ab0 | 2292 | printf("ARRAY " DEV_MD_DIR "%.16s container=%s member=%d UUID=%s\n", |
cf8de691 | 2293 | dev->volume, nbuf + 5, i, nbuf1 + 5); |
1e7bc0ed | 2294 | } |
cdddbdbc DW |
2295 | } |
2296 | ||
9d84c8ea DW |
2297 | static void export_examine_super_imsm(struct supertype *st) |
2298 | { | |
2299 | struct intel_super *super = st->sb; | |
2300 | struct imsm_super *mpb = super->anchor; | |
2301 | struct mdinfo info; | |
2302 | char nbuf[64]; | |
2303 | ||
a5d85af7 | 2304 | getinfo_super_imsm(st, &info, NULL); |
ba65d917 | 2305 | fname_from_uuid(&info, nbuf); |
9d84c8ea DW |
2306 | printf("MD_METADATA=imsm\n"); |
2307 | printf("MD_LEVEL=container\n"); | |
2308 | printf("MD_UUID=%s\n", nbuf+5); | |
2309 | printf("MD_DEVICES=%u\n", mpb->num_disks); | |
e48aed3c | 2310 | printf("MD_CREATION_TIME=%llu\n", __le64_to_cpu(mpb->creation_time)); |
9d84c8ea DW |
2311 | } |
2312 | ||
b771faef BK |
2313 | static void detail_super_imsm(struct supertype *st, char *homehost, |
2314 | char *subarray) | |
cdddbdbc | 2315 | { |
3ebe00a1 DW |
2316 | struct mdinfo info; |
2317 | char nbuf[64]; | |
b771faef BK |
2318 | struct intel_super *super = st->sb; |
2319 | int temp_vol = super->current_vol; | |
2320 | ||
2321 | if (subarray) | |
2322 | super->current_vol = strtoul(subarray, NULL, 10); | |
3ebe00a1 | 2323 | |
a5d85af7 | 2324 | getinfo_super_imsm(st, &info, NULL); |
ba65d917 | 2325 | fname_from_uuid(&info, nbuf); |
65884368 | 2326 | printf("\n UUID : %s\n", nbuf + 5); |
b771faef BK |
2327 | |
2328 | super->current_vol = temp_vol; | |
cdddbdbc DW |
2329 | } |
2330 | ||
b771faef | 2331 | static void brief_detail_super_imsm(struct supertype *st, char *subarray) |
cdddbdbc | 2332 | { |
ff54de6e N |
2333 | struct mdinfo info; |
2334 | char nbuf[64]; | |
b771faef BK |
2335 | struct intel_super *super = st->sb; |
2336 | int temp_vol = super->current_vol; | |
2337 | ||
2338 | if (subarray) | |
2339 | super->current_vol = strtoul(subarray, NULL, 10); | |
2340 | ||
a5d85af7 | 2341 | getinfo_super_imsm(st, &info, NULL); |
ba65d917 | 2342 | fname_from_uuid(&info, nbuf); |
ff54de6e | 2343 | printf(" UUID=%s", nbuf + 5); |
b771faef BK |
2344 | |
2345 | super->current_vol = temp_vol; | |
cdddbdbc | 2346 | } |
d665cc31 | 2347 | |
6da53c0e BK |
2348 | static int imsm_read_serial(int fd, char *devname, __u8 *serial, |
2349 | size_t serial_buf_len); | |
d665cc31 DW |
2350 | static void fd2devname(int fd, char *name); |
2351 | ||
120dc887 | 2352 | static int ahci_enumerate_ports(const char *hba_path, int port_count, int host_base, int verbose) |
d665cc31 | 2353 | { |
120dc887 LM |
2354 | /* dump an unsorted list of devices attached to AHCI Intel storage |
2355 | * controller, as well as non-connected ports | |
d665cc31 DW |
2356 | */ |
2357 | int hba_len = strlen(hba_path) + 1; | |
2358 | struct dirent *ent; | |
2359 | DIR *dir; | |
2360 | char *path = NULL; | |
2361 | int err = 0; | |
2362 | unsigned long port_mask = (1 << port_count) - 1; | |
2363 | ||
f21e18ca | 2364 | if (port_count > (int)sizeof(port_mask) * 8) { |
ba728be7 | 2365 | if (verbose > 0) |
e7b84f9d | 2366 | pr_err("port_count %d out of range\n", port_count); |
d665cc31 DW |
2367 | return 2; |
2368 | } | |
2369 | ||
2370 | /* scroll through /sys/dev/block looking for devices attached to | |
2371 | * this hba | |
2372 | */ | |
2373 | dir = opendir("/sys/dev/block"); | |
1a6dd6b9 PB |
2374 | if (!dir) |
2375 | return 1; | |
2376 | ||
2377 | for (ent = readdir(dir); ent; ent = readdir(dir)) { | |
d665cc31 DW |
2378 | int fd; |
2379 | char model[64]; | |
2380 | char vendor[64]; | |
2381 | char buf[1024]; | |
2382 | int major, minor; | |
fcebeb77 | 2383 | char device[PATH_MAX]; |
d665cc31 DW |
2384 | char *c; |
2385 | int port; | |
2386 | int type; | |
2387 | ||
2388 | if (sscanf(ent->d_name, "%d:%d", &major, &minor) != 2) | |
2389 | continue; | |
7c798f87 | 2390 | path = devt_to_devpath(makedev(major, minor), 1, NULL); |
d665cc31 DW |
2391 | if (!path) |
2392 | continue; | |
2393 | if (!path_attached_to_hba(path, hba_path)) { | |
2394 | free(path); | |
2395 | path = NULL; | |
2396 | continue; | |
2397 | } | |
2398 | ||
fcebeb77 MT |
2399 | /* retrieve the scsi device */ |
2400 | if (!devt_to_devpath(makedev(major, minor), 1, device)) { | |
ba728be7 | 2401 | if (verbose > 0) |
fcebeb77 | 2402 | pr_err("failed to get device\n"); |
d665cc31 DW |
2403 | err = 2; |
2404 | break; | |
2405 | } | |
fcebeb77 | 2406 | if (devpath_to_char(device, "type", buf, sizeof(buf), 0)) { |
d665cc31 | 2407 | err = 2; |
d665cc31 DW |
2408 | break; |
2409 | } | |
2410 | type = strtoul(buf, NULL, 10); | |
2411 | ||
2412 | /* if it's not a disk print the vendor and model */ | |
2413 | if (!(type == 0 || type == 7 || type == 14)) { | |
2414 | vendor[0] = '\0'; | |
2415 | model[0] = '\0'; | |
fcebeb77 MT |
2416 | |
2417 | if (devpath_to_char(device, "vendor", buf, | |
2418 | sizeof(buf), 0) == 0) { | |
d665cc31 DW |
2419 | strncpy(vendor, buf, sizeof(vendor)); |
2420 | vendor[sizeof(vendor) - 1] = '\0'; | |
2421 | c = (char *) &vendor[sizeof(vendor) - 1]; | |
2422 | while (isspace(*c) || *c == '\0') | |
2423 | *c-- = '\0'; | |
2424 | ||
2425 | } | |
fcebeb77 MT |
2426 | |
2427 | if (devpath_to_char(device, "model", buf, | |
2428 | sizeof(buf), 0) == 0) { | |
d665cc31 DW |
2429 | strncpy(model, buf, sizeof(model)); |
2430 | model[sizeof(model) - 1] = '\0'; | |
2431 | c = (char *) &model[sizeof(model) - 1]; | |
2432 | while (isspace(*c) || *c == '\0') | |
2433 | *c-- = '\0'; | |
2434 | } | |
2435 | ||
2436 | if (vendor[0] && model[0]) | |
2437 | sprintf(buf, "%.64s %.64s", vendor, model); | |
2438 | else | |
2439 | switch (type) { /* numbers from hald/linux/device.c */ | |
2440 | case 1: sprintf(buf, "tape"); break; | |
2441 | case 2: sprintf(buf, "printer"); break; | |
2442 | case 3: sprintf(buf, "processor"); break; | |
2443 | case 4: | |
2444 | case 5: sprintf(buf, "cdrom"); break; | |
2445 | case 6: sprintf(buf, "scanner"); break; | |
2446 | case 8: sprintf(buf, "media_changer"); break; | |
2447 | case 9: sprintf(buf, "comm"); break; | |
2448 | case 12: sprintf(buf, "raid"); break; | |
2449 | default: sprintf(buf, "unknown"); | |
2450 | } | |
2451 | } else | |
2452 | buf[0] = '\0'; | |
d665cc31 DW |
2453 | |
2454 | /* chop device path to 'host%d' and calculate the port number */ | |
2455 | c = strchr(&path[hba_len], '/'); | |
4e5e717d | 2456 | if (!c) { |
ba728be7 | 2457 | if (verbose > 0) |
e7b84f9d | 2458 | pr_err("%s - invalid path name\n", path + hba_len); |
4e5e717d AW |
2459 | err = 2; |
2460 | break; | |
2461 | } | |
d665cc31 | 2462 | *c = '\0'; |
0858eccf AP |
2463 | if ((sscanf(&path[hba_len], "ata%d", &port) == 1) || |
2464 | ((sscanf(&path[hba_len], "host%d", &port) == 1))) | |
d665cc31 DW |
2465 | port -= host_base; |
2466 | else { | |
ba728be7 | 2467 | if (verbose > 0) { |
d665cc31 | 2468 | *c = '/'; /* repair the full string */ |
e7b84f9d | 2469 | pr_err("failed to determine port number for %s\n", |
d665cc31 DW |
2470 | path); |
2471 | } | |
2472 | err = 2; | |
2473 | break; | |
2474 | } | |
2475 | ||
2476 | /* mark this port as used */ | |
2477 | port_mask &= ~(1 << port); | |
2478 | ||
2479 | /* print out the device information */ | |
2480 | if (buf[0]) { | |
2481 | printf(" Port%d : - non-disk device (%s) -\n", port, buf); | |
2482 | continue; | |
2483 | } | |
2484 | ||
2485 | fd = dev_open(ent->d_name, O_RDONLY); | |
4389ce73 | 2486 | if (!is_fd_valid(fd)) |
d665cc31 DW |
2487 | printf(" Port%d : - disk info unavailable -\n", port); |
2488 | else { | |
2489 | fd2devname(fd, buf); | |
2490 | printf(" Port%d : %s", port, buf); | |
6da53c0e BK |
2491 | if (imsm_read_serial(fd, NULL, (__u8 *)buf, |
2492 | sizeof(buf)) == 0) | |
2493 | printf(" (%s)\n", buf); | |
d665cc31 | 2494 | else |
664d5325 | 2495 | printf(" ()\n"); |
4dab422a | 2496 | close(fd); |
d665cc31 | 2497 | } |
d665cc31 DW |
2498 | free(path); |
2499 | path = NULL; | |
2500 | } | |
2501 | if (path) | |
2502 | free(path); | |
2503 | if (dir) | |
2504 | closedir(dir); | |
2505 | if (err == 0) { | |
2506 | int i; | |
2507 | ||
2508 | for (i = 0; i < port_count; i++) | |
2509 | if (port_mask & (1 << i)) | |
2510 | printf(" Port%d : - no device attached -\n", i); | |
2511 | } | |
2512 | ||
2513 | return err; | |
2514 | } | |
2515 | ||
6da53c0e | 2516 | static int print_nvme_info(struct sys_dev *hba) |
60f0f54d PB |
2517 | { |
2518 | struct dirent *ent; | |
2519 | DIR *dir; | |
60f0f54d | 2520 | |
6da53c0e | 2521 | dir = opendir("/sys/block/"); |
b9135011 | 2522 | if (!dir) |
b5eece69 | 2523 | return 1; |
b9135011 JS |
2524 | |
2525 | for (ent = readdir(dir); ent; ent = readdir(dir)) { | |
8662f92d MT |
2526 | char ns_path[PATH_MAX]; |
2527 | char cntrl_path[PATH_MAX]; | |
2528 | char buf[PATH_MAX]; | |
2529 | int fd = -1; | |
60f0f54d | 2530 | |
8662f92d MT |
2531 | if (!strstr(ent->d_name, "nvme")) |
2532 | goto skip; | |
d835518b | 2533 | |
8662f92d | 2534 | fd = open_dev(ent->d_name); |
4389ce73 | 2535 | if (!is_fd_valid(fd)) |
8662f92d | 2536 | goto skip; |
d835518b | 2537 | |
8662f92d MT |
2538 | if (!diskfd_to_devpath(fd, 0, ns_path) || |
2539 | !diskfd_to_devpath(fd, 1, cntrl_path)) | |
2540 | goto skip; | |
2541 | ||
2542 | if (!path_attached_to_hba(cntrl_path, hba->path)) | |
2543 | goto skip; | |
2544 | ||
2545 | if (!imsm_is_nvme_namespace_supported(fd, 0)) | |
2546 | goto skip; | |
2547 | ||
2548 | fd2devname(fd, buf); | |
2549 | if (hba->type == SYS_DEV_VMD) | |
2550 | printf(" NVMe under VMD : %s", buf); | |
2551 | else if (hba->type == SYS_DEV_NVME) | |
2552 | printf(" NVMe Device : %s", buf); | |
2553 | ||
2554 | if (!imsm_read_serial(fd, NULL, (__u8 *)buf, | |
2555 | sizeof(buf))) | |
2556 | printf(" (%s)\n", buf); | |
2557 | else | |
2558 | printf("()\n"); | |
2559 | ||
2560 | skip: | |
4389ce73 | 2561 | close_fd(&fd); |
60f0f54d PB |
2562 | } |
2563 | ||
b9135011 | 2564 | closedir(dir); |
b5eece69 | 2565 | return 0; |
60f0f54d PB |
2566 | } |
2567 | ||
120dc887 LM |
2568 | static void print_found_intel_controllers(struct sys_dev *elem) |
2569 | { | |
2570 | for (; elem; elem = elem->next) { | |
e7b84f9d | 2571 | pr_err("found Intel(R) "); |
120dc887 LM |
2572 | if (elem->type == SYS_DEV_SATA) |
2573 | fprintf(stderr, "SATA "); | |
155cbb4c LM |
2574 | else if (elem->type == SYS_DEV_SAS) |
2575 | fprintf(stderr, "SAS "); | |
0858eccf AP |
2576 | else if (elem->type == SYS_DEV_NVME) |
2577 | fprintf(stderr, "NVMe "); | |
60f0f54d PB |
2578 | |
2579 | if (elem->type == SYS_DEV_VMD) | |
2580 | fprintf(stderr, "VMD domain"); | |
75350d87 KF |
2581 | else if (elem->type == SYS_DEV_SATA_VMD) |
2582 | fprintf(stderr, "SATA VMD domain"); | |
60f0f54d PB |
2583 | else |
2584 | fprintf(stderr, "RAID controller"); | |
2585 | ||
120dc887 LM |
2586 | if (elem->pci_id) |
2587 | fprintf(stderr, " at %s", elem->pci_id); | |
2588 | fprintf(stderr, ".\n"); | |
2589 | } | |
2590 | fflush(stderr); | |
2591 | } | |
2592 | ||
120dc887 LM |
2593 | static int ahci_get_port_count(const char *hba_path, int *port_count) |
2594 | { | |
2595 | struct dirent *ent; | |
2596 | DIR *dir; | |
2597 | int host_base = -1; | |
2598 | ||
2599 | *port_count = 0; | |
2600 | if ((dir = opendir(hba_path)) == NULL) | |
2601 | return -1; | |
2602 | ||
2603 | for (ent = readdir(dir); ent; ent = readdir(dir)) { | |
2604 | int host; | |
2605 | ||
0858eccf AP |
2606 | if ((sscanf(ent->d_name, "ata%d", &host) != 1) && |
2607 | ((sscanf(ent->d_name, "host%d", &host) != 1))) | |
120dc887 LM |
2608 | continue; |
2609 | if (*port_count == 0) | |
2610 | host_base = host; | |
2611 | else if (host < host_base) | |
2612 | host_base = host; | |
2613 | ||
2614 | if (host + 1 > *port_count + host_base) | |
2615 | *port_count = host + 1 - host_base; | |
2616 | } | |
2617 | closedir(dir); | |
2618 | return host_base; | |
2619 | } | |
2620 | ||
a891a3c2 LM |
2621 | static void print_imsm_capability(const struct imsm_orom *orom) |
2622 | { | |
0858eccf AP |
2623 | printf(" Platform : Intel(R) "); |
2624 | if (orom->capabilities == 0 && orom->driver_features == 0) | |
2625 | printf("Matrix Storage Manager\n"); | |
ab0c6bb9 AP |
2626 | else if (imsm_orom_is_enterprise(orom) && orom->major_ver >= 6) |
2627 | printf("Virtual RAID on CPU\n"); | |
0858eccf AP |
2628 | else |
2629 | printf("Rapid Storage Technology%s\n", | |
2630 | imsm_orom_is_enterprise(orom) ? " enterprise" : ""); | |
8d1114be MG |
2631 | if (orom->major_ver || orom->minor_ver || orom->hotfix_ver || orom->build) { |
2632 | if (imsm_orom_is_vmd_without_efi(orom)) | |
2633 | printf(" Version : %d.%d\n", orom->major_ver, | |
2634 | orom->minor_ver); | |
2635 | else | |
2636 | printf(" Version : %d.%d.%d.%d\n", orom->major_ver, | |
2637 | orom->minor_ver, orom->hotfix_ver, orom->build); | |
2638 | } | |
a891a3c2 LM |
2639 | printf(" RAID Levels :%s%s%s%s%s\n", |
2640 | imsm_orom_has_raid0(orom) ? " raid0" : "", | |
2641 | imsm_orom_has_raid1(orom) ? " raid1" : "", | |
2642 | imsm_orom_has_raid1e(orom) ? " raid1e" : "", | |
2643 | imsm_orom_has_raid10(orom) ? " raid10" : "", | |
2644 | imsm_orom_has_raid5(orom) ? " raid5" : ""); | |
2645 | printf(" Chunk Sizes :%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", | |
2646 | imsm_orom_has_chunk(orom, 2) ? " 2k" : "", | |
2647 | imsm_orom_has_chunk(orom, 4) ? " 4k" : "", | |
2648 | imsm_orom_has_chunk(orom, 8) ? " 8k" : "", | |
2649 | imsm_orom_has_chunk(orom, 16) ? " 16k" : "", | |
2650 | imsm_orom_has_chunk(orom, 32) ? " 32k" : "", | |
2651 | imsm_orom_has_chunk(orom, 64) ? " 64k" : "", | |
2652 | imsm_orom_has_chunk(orom, 128) ? " 128k" : "", | |
2653 | imsm_orom_has_chunk(orom, 256) ? " 256k" : "", | |
2654 | imsm_orom_has_chunk(orom, 512) ? " 512k" : "", | |
2655 | imsm_orom_has_chunk(orom, 1024*1) ? " 1M" : "", | |
2656 | imsm_orom_has_chunk(orom, 1024*2) ? " 2M" : "", | |
2657 | imsm_orom_has_chunk(orom, 1024*4) ? " 4M" : "", | |
2658 | imsm_orom_has_chunk(orom, 1024*8) ? " 8M" : "", | |
2659 | imsm_orom_has_chunk(orom, 1024*16) ? " 16M" : "", | |
2660 | imsm_orom_has_chunk(orom, 1024*32) ? " 32M" : "", | |
2661 | imsm_orom_has_chunk(orom, 1024*64) ? " 64M" : ""); | |
29cd0821 CA |
2662 | printf(" 2TB volumes :%s supported\n", |
2663 | (orom->attr & IMSM_OROM_ATTR_2TB)?"":" not"); | |
2664 | printf(" 2TB disks :%s supported\n", | |
2665 | (orom->attr & IMSM_OROM_ATTR_2TB_DISK)?"":" not"); | |
0e7f69a8 | 2666 | printf(" Max Disks : %d\n", orom->tds); |
0858eccf AP |
2667 | printf(" Max Volumes : %d per array, %d per %s\n", |
2668 | orom->vpa, orom->vphba, | |
2669 | imsm_orom_is_nvme(orom) ? "platform" : "controller"); | |
a891a3c2 LM |
2670 | return; |
2671 | } | |
2672 | ||
e50cf220 MN |
2673 | static void print_imsm_capability_export(const struct imsm_orom *orom) |
2674 | { | |
2675 | printf("MD_FIRMWARE_TYPE=imsm\n"); | |
0858eccf AP |
2676 | if (orom->major_ver || orom->minor_ver || orom->hotfix_ver || orom->build) |
2677 | printf("IMSM_VERSION=%d.%d.%d.%d\n", orom->major_ver, orom->minor_ver, | |
2678 | orom->hotfix_ver, orom->build); | |
e50cf220 MN |
2679 | printf("IMSM_SUPPORTED_RAID_LEVELS=%s%s%s%s%s\n", |
2680 | imsm_orom_has_raid0(orom) ? "raid0 " : "", | |
2681 | imsm_orom_has_raid1(orom) ? "raid1 " : "", | |
2682 | imsm_orom_has_raid1e(orom) ? "raid1e " : "", | |
2683 | imsm_orom_has_raid5(orom) ? "raid10 " : "", | |
2684 | imsm_orom_has_raid10(orom) ? "raid5 " : ""); | |
2685 | printf("IMSM_SUPPORTED_CHUNK_SIZES=%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", | |
2686 | imsm_orom_has_chunk(orom, 2) ? "2k " : "", | |
2687 | imsm_orom_has_chunk(orom, 4) ? "4k " : "", | |
2688 | imsm_orom_has_chunk(orom, 8) ? "8k " : "", | |
2689 | imsm_orom_has_chunk(orom, 16) ? "16k " : "", | |
2690 | imsm_orom_has_chunk(orom, 32) ? "32k " : "", | |
2691 | imsm_orom_has_chunk(orom, 64) ? "64k " : "", | |
2692 | imsm_orom_has_chunk(orom, 128) ? "128k " : "", | |
2693 | imsm_orom_has_chunk(orom, 256) ? "256k " : "", | |
2694 | imsm_orom_has_chunk(orom, 512) ? "512k " : "", | |
2695 | imsm_orom_has_chunk(orom, 1024*1) ? "1M " : "", | |
2696 | imsm_orom_has_chunk(orom, 1024*2) ? "2M " : "", | |
2697 | imsm_orom_has_chunk(orom, 1024*4) ? "4M " : "", | |
2698 | imsm_orom_has_chunk(orom, 1024*8) ? "8M " : "", | |
2699 | imsm_orom_has_chunk(orom, 1024*16) ? "16M " : "", | |
2700 | imsm_orom_has_chunk(orom, 1024*32) ? "32M " : "", | |
2701 | imsm_orom_has_chunk(orom, 1024*64) ? "64M " : ""); | |
2702 | printf("IMSM_2TB_VOLUMES=%s\n",(orom->attr & IMSM_OROM_ATTR_2TB) ? "yes" : "no"); | |
2703 | printf("IMSM_2TB_DISKS=%s\n",(orom->attr & IMSM_OROM_ATTR_2TB_DISK) ? "yes" : "no"); | |
2704 | printf("IMSM_MAX_DISKS=%d\n",orom->tds); | |
2705 | printf("IMSM_MAX_VOLUMES_PER_ARRAY=%d\n",orom->vpa); | |
2706 | printf("IMSM_MAX_VOLUMES_PER_CONTROLLER=%d\n",orom->vphba); | |
2707 | } | |
2708 | ||
9eafa1de | 2709 | static int detail_platform_imsm(int verbose, int enumerate_only, char *controller_path) |
d665cc31 DW |
2710 | { |
2711 | /* There are two components to imsm platform support, the ahci SATA | |
2712 | * controller and the option-rom. To find the SATA controller we | |
2713 | * simply look in /sys/bus/pci/drivers/ahci to see if an ahci | |
2714 | * controller with the Intel vendor id is present. This approach | |
2715 | * allows mdadm to leverage the kernel's ahci detection logic, with the | |
2716 | * caveat that if ahci.ko is not loaded mdadm will not be able to | |
2717 | * detect platform raid capabilities. The option-rom resides in a | |
2718 | * platform "Adapter ROM". We scan for its signature to retrieve the | |
2719 | * platform capabilities. If raid support is disabled in the BIOS the | |
2720 | * option-rom capability structure will not be available. | |
2721 | */ | |
d665cc31 | 2722 | struct sys_dev *list, *hba; |
d665cc31 DW |
2723 | int host_base = 0; |
2724 | int port_count = 0; | |
9eafa1de | 2725 | int result=1; |
d665cc31 | 2726 | |
5615172f | 2727 | if (enumerate_only) { |
420dafcd | 2728 | if (check_no_platform()) |
5615172f | 2729 | return 0; |
a891a3c2 LM |
2730 | list = find_intel_devices(); |
2731 | if (!list) | |
2732 | return 2; | |
2733 | for (hba = list; hba; hba = hba->next) { | |
6b781d33 AP |
2734 | if (find_imsm_capability(hba)) { |
2735 | result = 0; | |
a891a3c2 LM |
2736 | break; |
2737 | } | |
9eafa1de | 2738 | else |
6b781d33 | 2739 | result = 2; |
a891a3c2 | 2740 | } |
a891a3c2 | 2741 | return result; |
5615172f DW |
2742 | } |
2743 | ||
155cbb4c LM |
2744 | list = find_intel_devices(); |
2745 | if (!list) { | |
ba728be7 | 2746 | if (verbose > 0) |
7a862a02 | 2747 | pr_err("no active Intel(R) RAID controller found.\n"); |
d665cc31 | 2748 | return 2; |
ba728be7 | 2749 | } else if (verbose > 0) |
155cbb4c | 2750 | print_found_intel_controllers(list); |
d665cc31 | 2751 | |
a891a3c2 | 2752 | for (hba = list; hba; hba = hba->next) { |
0858eccf | 2753 | if (controller_path && (compare_paths(hba->path, controller_path) != 0)) |
9eafa1de | 2754 | continue; |
0858eccf | 2755 | if (!find_imsm_capability(hba)) { |
60f0f54d | 2756 | char buf[PATH_MAX]; |
e7b84f9d | 2757 | pr_err("imsm capabilities not found for controller: %s (type %s)\n", |
75350d87 KF |
2758 | hba->type == SYS_DEV_VMD || hba->type == SYS_DEV_SATA_VMD ? |
2759 | vmd_domain_to_controller(hba, buf) : | |
2760 | hba->path, get_sys_dev_type(hba->type)); | |
0858eccf AP |
2761 | continue; |
2762 | } | |
2763 | result = 0; | |
2764 | } | |
2765 | ||
2766 | if (controller_path && result == 1) { | |
2767 | pr_err("no active Intel(R) RAID controller found under %s\n", | |
2768 | controller_path); | |
2769 | return result; | |
2770 | } | |
2771 | ||
5e1d6128 | 2772 | const struct orom_entry *entry; |
0858eccf | 2773 | |
5e1d6128 | 2774 | for (entry = orom_entries; entry; entry = entry->next) { |
60f0f54d | 2775 | if (entry->type == SYS_DEV_VMD) { |
07cb1e57 | 2776 | print_imsm_capability(&entry->orom); |
32716c51 PB |
2777 | printf(" 3rd party NVMe :%s supported\n", |
2778 | imsm_orom_has_tpv_support(&entry->orom)?"":" not"); | |
60f0f54d PB |
2779 | for (hba = list; hba; hba = hba->next) { |
2780 | if (hba->type == SYS_DEV_VMD) { | |
2781 | char buf[PATH_MAX]; | |
60f0f54d PB |
2782 | printf(" I/O Controller : %s (%s)\n", |
2783 | vmd_domain_to_controller(hba, buf), get_sys_dev_type(hba->type)); | |
6da53c0e | 2784 | if (print_nvme_info(hba)) { |
b5eece69 PB |
2785 | if (verbose > 0) |
2786 | pr_err("failed to get devices attached to VMD domain.\n"); | |
2787 | result |= 2; | |
2788 | } | |
60f0f54d PB |
2789 | } |
2790 | } | |
07cb1e57 | 2791 | printf("\n"); |
60f0f54d PB |
2792 | continue; |
2793 | } | |
0858eccf | 2794 | |
60f0f54d PB |
2795 | print_imsm_capability(&entry->orom); |
2796 | if (entry->type == SYS_DEV_NVME) { | |
0858eccf AP |
2797 | for (hba = list; hba; hba = hba->next) { |
2798 | if (hba->type == SYS_DEV_NVME) | |
6da53c0e | 2799 | print_nvme_info(hba); |
0858eccf | 2800 | } |
60f0f54d | 2801 | printf("\n"); |
0858eccf AP |
2802 | continue; |
2803 | } | |
2804 | ||
2805 | struct devid_list *devid; | |
5e1d6128 | 2806 | for (devid = entry->devid_list; devid; devid = devid->next) { |
0858eccf AP |
2807 | hba = device_by_id(devid->devid); |
2808 | if (!hba) | |
2809 | continue; | |
2810 | ||
9eafa1de MN |
2811 | printf(" I/O Controller : %s (%s)\n", |
2812 | hba->path, get_sys_dev_type(hba->type)); | |
75350d87 | 2813 | if (hba->type == SYS_DEV_SATA || hba->type == SYS_DEV_SATA_VMD) { |
9eafa1de MN |
2814 | host_base = ahci_get_port_count(hba->path, &port_count); |
2815 | if (ahci_enumerate_ports(hba->path, port_count, host_base, verbose)) { | |
2816 | if (verbose > 0) | |
75350d87 KF |
2817 | pr_err("failed to enumerate ports on %s controller at %s.\n", |
2818 | get_sys_dev_type(hba->type), hba->pci_id); | |
9eafa1de MN |
2819 | result |= 2; |
2820 | } | |
120dc887 LM |
2821 | } |
2822 | } | |
0858eccf | 2823 | printf("\n"); |
d665cc31 | 2824 | } |
155cbb4c | 2825 | |
120dc887 | 2826 | return result; |
d665cc31 | 2827 | } |
e50cf220 | 2828 | |
9eafa1de | 2829 | static int export_detail_platform_imsm(int verbose, char *controller_path) |
e50cf220 | 2830 | { |
e50cf220 MN |
2831 | struct sys_dev *list, *hba; |
2832 | int result=1; | |
2833 | ||
2834 | list = find_intel_devices(); | |
2835 | if (!list) { | |
2836 | if (verbose > 0) | |
2837 | pr_err("IMSM_DETAIL_PLATFORM_ERROR=NO_INTEL_DEVICES\n"); | |
2838 | result = 2; | |
e50cf220 MN |
2839 | return result; |
2840 | } | |
2841 | ||
2842 | for (hba = list; hba; hba = hba->next) { | |
9eafa1de MN |
2843 | if (controller_path && (compare_paths(hba->path,controller_path) != 0)) |
2844 | continue; | |
60f0f54d PB |
2845 | if (!find_imsm_capability(hba) && verbose > 0) { |
2846 | char buf[PATH_MAX]; | |
2847 | pr_err("IMSM_DETAIL_PLATFORM_ERROR=NO_IMSM_CAPABLE_DEVICE_UNDER_%s\n", | |
75350d87 KF |
2848 | hba->type == SYS_DEV_VMD || hba->type == SYS_DEV_SATA_VMD ? |
2849 | vmd_domain_to_controller(hba, buf) : hba->path); | |
60f0f54d | 2850 | } |
0858eccf | 2851 | else |
e50cf220 | 2852 | result = 0; |
e50cf220 MN |
2853 | } |
2854 | ||
5e1d6128 | 2855 | const struct orom_entry *entry; |
0858eccf | 2856 | |
60f0f54d | 2857 | for (entry = orom_entries; entry; entry = entry->next) { |
75350d87 | 2858 | if (entry->type == SYS_DEV_VMD || entry->type == SYS_DEV_SATA_VMD) { |
60f0f54d PB |
2859 | for (hba = list; hba; hba = hba->next) |
2860 | print_imsm_capability_export(&entry->orom); | |
2861 | continue; | |
2862 | } | |
5e1d6128 | 2863 | print_imsm_capability_export(&entry->orom); |
60f0f54d | 2864 | } |
0858eccf | 2865 | |
e50cf220 MN |
2866 | return result; |
2867 | } | |
2868 | ||
cdddbdbc DW |
2869 | static int match_home_imsm(struct supertype *st, char *homehost) |
2870 | { | |
5115ca67 DW |
2871 | /* the imsm metadata format does not specify any host |
2872 | * identification information. We return -1 since we can never | |
2873 | * confirm nor deny whether a given array is "meant" for this | |
148acb7b | 2874 | * host. We rely on compare_super and the 'family_num' fields to |
5115ca67 DW |
2875 | * exclude member disks that do not belong, and we rely on |
2876 | * mdadm.conf to specify the arrays that should be assembled. | |
2877 | * Auto-assembly may still pick up "foreign" arrays. | |
2878 | */ | |
cdddbdbc | 2879 | |
9362c1c8 | 2880 | return -1; |
cdddbdbc DW |
2881 | } |
2882 | ||
2883 | static void uuid_from_super_imsm(struct supertype *st, int uuid[4]) | |
2884 | { | |
51006d85 N |
2885 | /* The uuid returned here is used for: |
2886 | * uuid to put into bitmap file (Create, Grow) | |
2887 | * uuid for backup header when saving critical section (Grow) | |
2888 | * comparing uuids when re-adding a device into an array | |
2889 | * In these cases the uuid required is that of the data-array, | |
2890 | * not the device-set. | |
2891 | * uuid to recognise same set when adding a missing device back | |
2892 | * to an array. This is a uuid for the device-set. | |
1011e834 | 2893 | * |
51006d85 N |
2894 | * For each of these we can make do with a truncated |
2895 | * or hashed uuid rather than the original, as long as | |
2896 | * everyone agrees. | |
2897 | * In each case the uuid required is that of the data-array, | |
2898 | * not the device-set. | |
43dad3d6 | 2899 | */ |
51006d85 N |
2900 | /* imsm does not track uuid's so we synthesis one using sha1 on |
2901 | * - The signature (Which is constant for all imsm array, but no matter) | |
148acb7b | 2902 | * - the orig_family_num of the container |
51006d85 N |
2903 | * - the index number of the volume |
2904 | * - the 'serial' number of the volume. | |
2905 | * Hopefully these are all constant. | |
2906 | */ | |
2907 | struct intel_super *super = st->sb; | |
43dad3d6 | 2908 | |
51006d85 N |
2909 | char buf[20]; |
2910 | struct sha1_ctx ctx; | |
2911 | struct imsm_dev *dev = NULL; | |
148acb7b | 2912 | __u32 family_num; |
51006d85 | 2913 | |
148acb7b DW |
2914 | /* some mdadm versions failed to set ->orig_family_num, in which |
2915 | * case fall back to ->family_num. orig_family_num will be | |
2916 | * fixed up with the first metadata update. | |
2917 | */ | |
2918 | family_num = super->anchor->orig_family_num; | |
2919 | if (family_num == 0) | |
2920 | family_num = super->anchor->family_num; | |
51006d85 | 2921 | sha1_init_ctx(&ctx); |
92bd8f8d | 2922 | sha1_process_bytes(super->anchor->sig, MPB_SIG_LEN, &ctx); |
148acb7b | 2923 | sha1_process_bytes(&family_num, sizeof(__u32), &ctx); |
51006d85 N |
2924 | if (super->current_vol >= 0) |
2925 | dev = get_imsm_dev(super, super->current_vol); | |
2926 | if (dev) { | |
2927 | __u32 vol = super->current_vol; | |
2928 | sha1_process_bytes(&vol, sizeof(vol), &ctx); | |
2929 | sha1_process_bytes(dev->volume, MAX_RAID_SERIAL_LEN, &ctx); | |
2930 | } | |
2931 | sha1_finish_ctx(&ctx, buf); | |
2932 | memcpy(uuid, buf, 4*4); | |
cdddbdbc DW |
2933 | } |
2934 | ||
1e5c6983 DW |
2935 | static __u32 migr_strip_blocks_resync(struct imsm_dev *dev) |
2936 | { | |
2937 | /* migr_strip_size when repairing or initializing parity */ | |
238c0a71 | 2938 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
1e5c6983 DW |
2939 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); |
2940 | ||
2941 | switch (get_imsm_raid_level(map)) { | |
2942 | case 5: | |
2943 | case 10: | |
2944 | return chunk; | |
2945 | default: | |
2946 | return 128*1024 >> 9; | |
2947 | } | |
2948 | } | |
2949 | ||
2950 | static __u32 migr_strip_blocks_rebuild(struct imsm_dev *dev) | |
2951 | { | |
2952 | /* migr_strip_size when rebuilding a degraded disk, no idea why | |
2953 | * this is different than migr_strip_size_resync(), but it's good | |
2954 | * to be compatible | |
2955 | */ | |
238c0a71 | 2956 | struct imsm_map *map = get_imsm_map(dev, MAP_1); |
1e5c6983 DW |
2957 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); |
2958 | ||
2959 | switch (get_imsm_raid_level(map)) { | |
2960 | case 1: | |
2961 | case 10: | |
2962 | if (map->num_members % map->num_domains == 0) | |
2963 | return 128*1024 >> 9; | |
2964 | else | |
2965 | return chunk; | |
2966 | case 5: | |
2967 | return max((__u32) 64*1024 >> 9, chunk); | |
2968 | default: | |
2969 | return 128*1024 >> 9; | |
2970 | } | |
2971 | } | |
2972 | ||
2973 | static __u32 num_stripes_per_unit_resync(struct imsm_dev *dev) | |
2974 | { | |
238c0a71 AK |
2975 | struct imsm_map *lo = get_imsm_map(dev, MAP_0); |
2976 | struct imsm_map *hi = get_imsm_map(dev, MAP_1); | |
1e5c6983 DW |
2977 | __u32 lo_chunk = __le32_to_cpu(lo->blocks_per_strip); |
2978 | __u32 hi_chunk = __le32_to_cpu(hi->blocks_per_strip); | |
2979 | ||
2980 | return max((__u32) 1, hi_chunk / lo_chunk); | |
2981 | } | |
2982 | ||
2983 | static __u32 num_stripes_per_unit_rebuild(struct imsm_dev *dev) | |
2984 | { | |
238c0a71 | 2985 | struct imsm_map *lo = get_imsm_map(dev, MAP_0); |
1e5c6983 DW |
2986 | int level = get_imsm_raid_level(lo); |
2987 | ||
2988 | if (level == 1 || level == 10) { | |
238c0a71 | 2989 | struct imsm_map *hi = get_imsm_map(dev, MAP_1); |
1e5c6983 DW |
2990 | |
2991 | return hi->num_domains; | |
2992 | } else | |
2993 | return num_stripes_per_unit_resync(dev); | |
2994 | } | |
2995 | ||
44490938 MD |
2996 | static unsigned long long calc_component_size(struct imsm_map *map, |
2997 | struct imsm_dev *dev) | |
2998 | { | |
2999 | unsigned long long component_size; | |
3000 | unsigned long long dev_size = imsm_dev_size(dev); | |
a4f7290c | 3001 | long long calc_dev_size = 0; |
44490938 MD |
3002 | unsigned int member_disks = imsm_num_data_members(map); |
3003 | ||
3004 | if (member_disks == 0) | |
3005 | return 0; | |
3006 | ||
3007 | component_size = per_dev_array_size(map); | |
3008 | calc_dev_size = component_size * member_disks; | |
3009 | ||
3010 | /* Component size is rounded to 1MB so difference between size from | |
3011 | * metadata and size calculated from num_data_stripes equals up to | |
3012 | * 2048 blocks per each device. If the difference is higher it means | |
3013 | * that array size was expanded and num_data_stripes was not updated. | |
3014 | */ | |
a4f7290c | 3015 | if (llabs(calc_dev_size - (long long)dev_size) > |
44490938 MD |
3016 | (1 << SECT_PER_MB_SHIFT) * member_disks) { |
3017 | component_size = dev_size / member_disks; | |
3018 | dprintf("Invalid num_data_stripes in metadata; expected=%llu, found=%llu\n", | |
3019 | component_size / map->blocks_per_strip, | |
3020 | num_data_stripes(map)); | |
3021 | } | |
3022 | ||
3023 | return component_size; | |
3024 | } | |
3025 | ||
1e5c6983 DW |
3026 | static __u32 parity_segment_depth(struct imsm_dev *dev) |
3027 | { | |
238c0a71 | 3028 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
1e5c6983 DW |
3029 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); |
3030 | ||
3031 | switch(get_imsm_raid_level(map)) { | |
3032 | case 1: | |
3033 | case 10: | |
3034 | return chunk * map->num_domains; | |
3035 | case 5: | |
3036 | return chunk * map->num_members; | |
3037 | default: | |
3038 | return chunk; | |
3039 | } | |
3040 | } | |
3041 | ||
3042 | static __u32 map_migr_block(struct imsm_dev *dev, __u32 block) | |
3043 | { | |
238c0a71 | 3044 | struct imsm_map *map = get_imsm_map(dev, MAP_1); |
1e5c6983 DW |
3045 | __u32 chunk = __le32_to_cpu(map->blocks_per_strip); |
3046 | __u32 strip = block / chunk; | |
3047 | ||
3048 | switch (get_imsm_raid_level(map)) { | |
3049 | case 1: | |
3050 | case 10: { | |
3051 | __u32 vol_strip = (strip * map->num_domains) + 1; | |
3052 | __u32 vol_stripe = vol_strip / map->num_members; | |
3053 | ||
3054 | return vol_stripe * chunk + block % chunk; | |
3055 | } case 5: { | |
3056 | __u32 stripe = strip / (map->num_members - 1); | |
3057 | ||
3058 | return stripe * chunk + block % chunk; | |
3059 | } | |
3060 | default: | |
3061 | return 0; | |
3062 | } | |
3063 | } | |
3064 | ||
c47b0ff6 AK |
3065 | static __u64 blocks_per_migr_unit(struct intel_super *super, |
3066 | struct imsm_dev *dev) | |
1e5c6983 DW |
3067 | { |
3068 | /* calculate the conversion factor between per member 'blocks' | |
3069 | * (md/{resync,rebuild}_start) and imsm migration units, return | |
3070 | * 0 for the 'not migrating' and 'unsupported migration' cases | |
3071 | */ | |
3072 | if (!dev->vol.migr_state) | |
3073 | return 0; | |
3074 | ||
3075 | switch (migr_type(dev)) { | |
c47b0ff6 AK |
3076 | case MIGR_GEN_MIGR: { |
3077 | struct migr_record *migr_rec = super->migr_rec; | |
3078 | return __le32_to_cpu(migr_rec->blocks_per_unit); | |
3079 | } | |
1e5c6983 DW |
3080 | case MIGR_VERIFY: |
3081 | case MIGR_REPAIR: | |
3082 | case MIGR_INIT: { | |
238c0a71 | 3083 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
1e5c6983 DW |
3084 | __u32 stripes_per_unit; |
3085 | __u32 blocks_per_unit; | |
3086 | __u32 parity_depth; | |
3087 | __u32 migr_chunk; | |
3088 | __u32 block_map; | |
3089 | __u32 block_rel; | |
3090 | __u32 segment; | |
3091 | __u32 stripe; | |
3092 | __u8 disks; | |
3093 | ||
3094 | /* yes, this is really the translation of migr_units to | |
3095 | * per-member blocks in the 'resync' case | |
3096 | */ | |
3097 | stripes_per_unit = num_stripes_per_unit_resync(dev); | |
3098 | migr_chunk = migr_strip_blocks_resync(dev); | |
9529d343 | 3099 | disks = imsm_num_data_members(map); |
1e5c6983 | 3100 | blocks_per_unit = stripes_per_unit * migr_chunk * disks; |
7b1ab482 | 3101 | stripe = __le16_to_cpu(map->blocks_per_strip) * disks; |
1e5c6983 DW |
3102 | segment = blocks_per_unit / stripe; |
3103 | block_rel = blocks_per_unit - segment * stripe; | |
3104 | parity_depth = parity_segment_depth(dev); | |
3105 | block_map = map_migr_block(dev, block_rel); | |
3106 | return block_map + parity_depth * segment; | |
3107 | } | |
3108 | case MIGR_REBUILD: { | |
3109 | __u32 stripes_per_unit; | |
3110 | __u32 migr_chunk; | |
3111 | ||
3112 | stripes_per_unit = num_stripes_per_unit_rebuild(dev); | |
3113 | migr_chunk = migr_strip_blocks_rebuild(dev); | |
3114 | return migr_chunk * stripes_per_unit; | |
3115 | } | |
1e5c6983 DW |
3116 | case MIGR_STATE_CHANGE: |
3117 | default: | |
3118 | return 0; | |
3119 | } | |
3120 | } | |
3121 | ||
c2c087e6 DW |
3122 | static int imsm_level_to_layout(int level) |
3123 | { | |
3124 | switch (level) { | |
3125 | case 0: | |
3126 | case 1: | |
3127 | return 0; | |
3128 | case 5: | |
3129 | case 6: | |
a380c027 | 3130 | return ALGORITHM_LEFT_ASYMMETRIC; |
c2c087e6 | 3131 | case 10: |
c92a2527 | 3132 | return 0x102; |
c2c087e6 | 3133 | } |
a18a888e | 3134 | return UnSet; |
c2c087e6 DW |
3135 | } |
3136 | ||
8e59f3d8 AK |
3137 | /******************************************************************************* |
3138 | * Function: read_imsm_migr_rec | |
3139 | * Description: Function reads imsm migration record from last sector of disk | |
3140 | * Parameters: | |
3141 | * fd : disk descriptor | |
3142 | * super : metadata info | |
3143 | * Returns: | |
3144 | * 0 : success, | |
3145 | * -1 : fail | |
3146 | ******************************************************************************/ | |
3147 | static int read_imsm_migr_rec(int fd, struct intel_super *super) | |
3148 | { | |
3149 | int ret_val = -1; | |
de44e46f | 3150 | unsigned int sector_size = super->sector_size; |
8e59f3d8 AK |
3151 | unsigned long long dsize; |
3152 | ||
3153 | get_dev_size(fd, NULL, &dsize); | |
de44e46f PB |
3154 | if (lseek64(fd, dsize - (sector_size*MIGR_REC_SECTOR_POSITION), |
3155 | SEEK_SET) < 0) { | |
e7b84f9d N |
3156 | pr_err("Cannot seek to anchor block: %s\n", |
3157 | strerror(errno)); | |
8e59f3d8 AK |
3158 | goto out; |
3159 | } | |
466070ad | 3160 | if ((unsigned int)read(fd, super->migr_rec_buf, |
de44e46f PB |
3161 | MIGR_REC_BUF_SECTORS*sector_size) != |
3162 | MIGR_REC_BUF_SECTORS*sector_size) { | |
e7b84f9d N |
3163 | pr_err("Cannot read migr record block: %s\n", |
3164 | strerror(errno)); | |
8e59f3d8 AK |
3165 | goto out; |
3166 | } | |
3167 | ret_val = 0; | |
de44e46f PB |
3168 | if (sector_size == 4096) |
3169 | convert_from_4k_imsm_migr_rec(super); | |
8e59f3d8 AK |
3170 | |
3171 | out: | |
3172 | return ret_val; | |
3173 | } | |
3174 | ||
3136abe5 AK |
3175 | static struct imsm_dev *imsm_get_device_during_migration( |
3176 | struct intel_super *super) | |
3177 | { | |
3178 | ||
3179 | struct intel_dev *dv; | |
3180 | ||
3181 | for (dv = super->devlist; dv; dv = dv->next) { | |
3182 | if (is_gen_migration(dv->dev)) | |
3183 | return dv->dev; | |
3184 | } | |
3185 | return NULL; | |
3186 | } | |
3187 | ||
8e59f3d8 AK |
3188 | /******************************************************************************* |
3189 | * Function: load_imsm_migr_rec | |
3190 | * Description: Function reads imsm migration record (it is stored at the last | |
3191 | * sector of disk) | |
3192 | * Parameters: | |
3193 | * super : imsm internal array info | |
8e59f3d8 AK |
3194 | * Returns: |
3195 | * 0 : success | |
3196 | * -1 : fail | |
4c965cc9 | 3197 | * -2 : no migration in progress |
8e59f3d8 | 3198 | ******************************************************************************/ |
2f86fda3 | 3199 | static int load_imsm_migr_rec(struct intel_super *super) |
8e59f3d8 | 3200 | { |
594dc1b8 | 3201 | struct dl *dl; |
8e59f3d8 AK |
3202 | char nm[30]; |
3203 | int retval = -1; | |
3204 | int fd = -1; | |
3136abe5 | 3205 | struct imsm_dev *dev; |
594dc1b8 | 3206 | struct imsm_map *map; |
b4ab44d8 | 3207 | int slot = -1; |
2f86fda3 | 3208 | int keep_fd = 1; |
3136abe5 AK |
3209 | |
3210 | /* find map under migration */ | |
3211 | dev = imsm_get_device_during_migration(super); | |
3212 | /* nothing to load,no migration in progress? | |
3213 | */ | |
3214 | if (dev == NULL) | |
4c965cc9 | 3215 | return -2; |
8e59f3d8 | 3216 | |
2f86fda3 MT |
3217 | map = get_imsm_map(dev, MAP_0); |
3218 | if (!map) | |
3219 | return -1; | |
3136abe5 | 3220 | |
2f86fda3 MT |
3221 | for (dl = super->disks; dl; dl = dl->next) { |
3222 | /* skip spare and failed disks | |
3223 | */ | |
3224 | if (dl->index < 0) | |
3225 | continue; | |
3226 | /* read only from one of the first two slots | |
3227 | */ | |
3228 | slot = get_imsm_disk_slot(map, dl->index); | |
3229 | if (slot > 1 || slot < 0) | |
3230 | continue; | |
3231 | ||
4389ce73 | 3232 | if (!is_fd_valid(dl->fd)) { |
8e59f3d8 AK |
3233 | sprintf(nm, "%d:%d", dl->major, dl->minor); |
3234 | fd = dev_open(nm, O_RDONLY); | |
4389ce73 MT |
3235 | |
3236 | if (is_fd_valid(fd)) { | |
2f86fda3 | 3237 | keep_fd = 0; |
8e59f3d8 | 3238 | break; |
2f86fda3 MT |
3239 | } |
3240 | } else { | |
3241 | fd = dl->fd; | |
3242 | break; | |
8e59f3d8 AK |
3243 | } |
3244 | } | |
2f86fda3 | 3245 | |
4389ce73 | 3246 | if (!is_fd_valid(fd)) |
2f86fda3 | 3247 | return retval; |
8e59f3d8 | 3248 | retval = read_imsm_migr_rec(fd, super); |
2f86fda3 | 3249 | if (!keep_fd) |
8e59f3d8 | 3250 | close(fd); |
2f86fda3 | 3251 | |
8e59f3d8 AK |
3252 | return retval; |
3253 | } | |
3254 | ||
c17608ea AK |
3255 | /******************************************************************************* |
3256 | * function: imsm_create_metadata_checkpoint_update | |
3257 | * Description: It creates update for checkpoint change. | |
3258 | * Parameters: | |
3259 | * super : imsm internal array info | |
3260 | * u : pointer to prepared update | |
3261 | * Returns: | |
3262 | * Uptate length. | |
3263 | * If length is equal to 0, input pointer u contains no update | |
3264 | ******************************************************************************/ | |
3265 | static int imsm_create_metadata_checkpoint_update( | |
3266 | struct intel_super *super, | |
3267 | struct imsm_update_general_migration_checkpoint **u) | |
3268 | { | |
3269 | ||
3270 | int update_memory_size = 0; | |
3271 | ||
1ade5cc1 | 3272 | dprintf("(enter)\n"); |
c17608ea AK |
3273 | |
3274 | if (u == NULL) | |
3275 | return 0; | |
3276 | *u = NULL; | |
3277 | ||
3278 | /* size of all update data without anchor */ | |
3279 | update_memory_size = | |
3280 | sizeof(struct imsm_update_general_migration_checkpoint); | |
3281 | ||
503975b9 | 3282 | *u = xcalloc(1, update_memory_size); |
c17608ea | 3283 | if (*u == NULL) { |
1ade5cc1 | 3284 | dprintf("error: cannot get memory\n"); |
c17608ea AK |
3285 | return 0; |
3286 | } | |
3287 | (*u)->type = update_general_migration_checkpoint; | |
9f421827 | 3288 | (*u)->curr_migr_unit = current_migr_unit(super->migr_rec); |
83b3de77 | 3289 | dprintf("prepared for %llu\n", (unsigned long long)(*u)->curr_migr_unit); |
c17608ea AK |
3290 | |
3291 | return update_memory_size; | |
3292 | } | |
3293 | ||
c17608ea AK |
3294 | static void imsm_update_metadata_locally(struct supertype *st, |
3295 | void *buf, int len); | |
3296 | ||
687629c2 AK |
3297 | /******************************************************************************* |
3298 | * Function: write_imsm_migr_rec | |
3299 | * Description: Function writes imsm migration record | |
3300 | * (at the last sector of disk) | |
3301 | * Parameters: | |
3302 | * super : imsm internal array info | |
3303 | * Returns: | |
3304 | * 0 : success | |
3305 | * -1 : if fail | |
3306 | ******************************************************************************/ | |
3307 | static int write_imsm_migr_rec(struct supertype *st) | |
3308 | { | |
3309 | struct intel_super *super = st->sb; | |
de44e46f | 3310 | unsigned int sector_size = super->sector_size; |
687629c2 | 3311 | unsigned long long dsize; |
687629c2 AK |
3312 | int retval = -1; |
3313 | struct dl *sd; | |
c17608ea AK |
3314 | int len; |
3315 | struct imsm_update_general_migration_checkpoint *u; | |
3136abe5 | 3316 | struct imsm_dev *dev; |
594dc1b8 | 3317 | struct imsm_map *map; |
3136abe5 AK |
3318 | |
3319 | /* find map under migration */ | |
3320 | dev = imsm_get_device_during_migration(super); | |
3321 | /* if no migration, write buffer anyway to clear migr_record | |
3322 | * on disk based on first available device | |
3323 | */ | |
3324 | if (dev == NULL) | |
3325 | dev = get_imsm_dev(super, super->current_vol < 0 ? 0 : | |
3326 | super->current_vol); | |
3327 | ||
44bfe6df | 3328 | map = get_imsm_map(dev, MAP_0); |
687629c2 | 3329 | |
de44e46f PB |
3330 | if (sector_size == 4096) |
3331 | convert_to_4k_imsm_migr_rec(super); | |
687629c2 | 3332 | for (sd = super->disks ; sd ; sd = sd->next) { |
b4ab44d8 | 3333 | int slot = -1; |
3136abe5 AK |
3334 | |
3335 | /* skip failed and spare devices */ | |
3336 | if (sd->index < 0) | |
3337 | continue; | |
687629c2 | 3338 | /* write to 2 first slots only */ |
3136abe5 AK |
3339 | if (map) |
3340 | slot = get_imsm_disk_slot(map, sd->index); | |
089f9d79 | 3341 | if (map == NULL || slot > 1 || slot < 0) |
687629c2 | 3342 | continue; |
3136abe5 | 3343 | |
2f86fda3 MT |
3344 | get_dev_size(sd->fd, NULL, &dsize); |
3345 | if (lseek64(sd->fd, dsize - (MIGR_REC_SECTOR_POSITION * | |
3346 | sector_size), | |
de44e46f | 3347 | SEEK_SET) < 0) { |
e7b84f9d N |
3348 | pr_err("Cannot seek to anchor block: %s\n", |
3349 | strerror(errno)); | |
687629c2 AK |
3350 | goto out; |
3351 | } | |
2f86fda3 | 3352 | if ((unsigned int)write(sd->fd, super->migr_rec_buf, |
de44e46f PB |
3353 | MIGR_REC_BUF_SECTORS*sector_size) != |
3354 | MIGR_REC_BUF_SECTORS*sector_size) { | |
e7b84f9d N |
3355 | pr_err("Cannot write migr record block: %s\n", |
3356 | strerror(errno)); | |
687629c2 AK |
3357 | goto out; |
3358 | } | |
687629c2 | 3359 | } |
de44e46f PB |
3360 | if (sector_size == 4096) |
3361 | convert_from_4k_imsm_migr_rec(super); | |
c17608ea AK |
3362 | /* update checkpoint information in metadata */ |
3363 | len = imsm_create_metadata_checkpoint_update(super, &u); | |
c17608ea AK |
3364 | if (len <= 0) { |
3365 | dprintf("imsm: Cannot prepare update\n"); | |
3366 | goto out; | |
3367 | } | |
3368 | /* update metadata locally */ | |
3369 | imsm_update_metadata_locally(st, u, len); | |
3370 | /* and possibly remotely */ | |
3371 | if (st->update_tail) { | |
3372 | append_metadata_update(st, u, len); | |
3373 | /* during reshape we do all work inside metadata handler | |
3374 | * manage_reshape(), so metadata update has to be triggered | |
3375 | * insida it | |
3376 | */ | |
3377 | flush_metadata_updates(st); | |
3378 | st->update_tail = &st->updates; | |
3379 | } else | |
3380 | free(u); | |
687629c2 AK |
3381 | |
3382 | retval = 0; | |
3383 | out: | |
687629c2 AK |
3384 | return retval; |
3385 | } | |
3386 | ||
e2962bfc AK |
3387 | /* spare/missing disks activations are not allowe when |
3388 | * array/container performs reshape operation, because | |
3389 | * all arrays in container works on the same disks set | |
3390 | */ | |
3391 | int imsm_reshape_blocks_arrays_changes(struct intel_super *super) | |
3392 | { | |
3393 | int rv = 0; | |
3394 | struct intel_dev *i_dev; | |
3395 | struct imsm_dev *dev; | |
3396 | ||
3397 | /* check whole container | |
3398 | */ | |
3399 | for (i_dev = super->devlist; i_dev; i_dev = i_dev->next) { | |
3400 | dev = i_dev->dev; | |
3ad25638 | 3401 | if (is_gen_migration(dev)) { |
e2962bfc AK |
3402 | /* No repair during any migration in container |
3403 | */ | |
3404 | rv = 1; | |
3405 | break; | |
3406 | } | |
3407 | } | |
3408 | return rv; | |
3409 | } | |
3e684231 | 3410 | static unsigned long long imsm_component_size_alignment_check(int level, |
c41e00b2 | 3411 | int chunk_size, |
f36a9ecd | 3412 | unsigned int sector_size, |
c41e00b2 AK |
3413 | unsigned long long component_size) |
3414 | { | |
3e684231 | 3415 | unsigned int component_size_alignment; |
c41e00b2 | 3416 | |
3e684231 | 3417 | /* check component size alignment |
c41e00b2 | 3418 | */ |
3e684231 | 3419 | component_size_alignment = component_size % (chunk_size/sector_size); |
c41e00b2 | 3420 | |
3e684231 | 3421 | dprintf("(Level: %i, chunk_size = %i, component_size = %llu), component_size_alignment = %u\n", |
c41e00b2 | 3422 | level, chunk_size, component_size, |
3e684231 | 3423 | component_size_alignment); |
c41e00b2 | 3424 | |
3e684231 MZ |
3425 | if (component_size_alignment && (level != 1) && (level != UnSet)) { |
3426 | dprintf("imsm: reported component size aligned from %llu ", | |
c41e00b2 | 3427 | component_size); |
3e684231 | 3428 | component_size -= component_size_alignment; |
1ade5cc1 | 3429 | dprintf_cont("to %llu (%i).\n", |
3e684231 | 3430 | component_size, component_size_alignment); |
c41e00b2 AK |
3431 | } |
3432 | ||
3433 | return component_size; | |
3434 | } | |
e2962bfc | 3435 | |
fbc42556 JR |
3436 | /******************************************************************************* |
3437 | * Function: get_bitmap_header_sector | |
3438 | * Description: Returns the sector where the bitmap header is placed. | |
3439 | * Parameters: | |
3440 | * st : supertype information | |
3441 | * dev_idx : index of the device with bitmap | |
3442 | * | |
3443 | * Returns: | |
3444 | * The sector where the bitmap header is placed | |
3445 | ******************************************************************************/ | |
3446 | static unsigned long long get_bitmap_header_sector(struct intel_super *super, | |
3447 | int dev_idx) | |
3448 | { | |
3449 | struct imsm_dev *dev = get_imsm_dev(super, dev_idx); | |
3450 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
3451 | ||
3452 | if (!super->sector_size) { | |
3453 | dprintf("sector size is not set\n"); | |
3454 | return 0; | |
3455 | } | |
3456 | ||
3457 | return pba_of_lba0(map) + calc_component_size(map, dev) + | |
3458 | (IMSM_BITMAP_HEADER_OFFSET / super->sector_size); | |
3459 | } | |
3460 | ||
3461 | /******************************************************************************* | |
3462 | * Function: get_bitmap_sector | |
3463 | * Description: Returns the sector where the bitmap is placed. | |
3464 | * Parameters: | |
3465 | * st : supertype information | |
3466 | * dev_idx : index of the device with bitmap | |
3467 | * | |
3468 | * Returns: | |
3469 | * The sector where the bitmap is placed | |
3470 | ******************************************************************************/ | |
3471 | static unsigned long long get_bitmap_sector(struct intel_super *super, | |
3472 | int dev_idx) | |
3473 | { | |
3474 | if (!super->sector_size) { | |
3475 | dprintf("sector size is not set\n"); | |
3476 | return 0; | |
3477 | } | |
3478 | ||
3479 | return get_bitmap_header_sector(super, dev_idx) + | |
3480 | (IMSM_BITMAP_HEADER_SIZE / super->sector_size); | |
3481 | } | |
3482 | ||
2432ce9b AP |
3483 | static unsigned long long get_ppl_sector(struct intel_super *super, int dev_idx) |
3484 | { | |
3485 | struct imsm_dev *dev = get_imsm_dev(super, dev_idx); | |
3486 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
3487 | ||
3488 | return pba_of_lba0(map) + | |
3489 | (num_data_stripes(map) * map->blocks_per_strip); | |
3490 | } | |
3491 | ||
a5d85af7 | 3492 | static void getinfo_super_imsm_volume(struct supertype *st, struct mdinfo *info, char *dmap) |
bf5a934a DW |
3493 | { |
3494 | struct intel_super *super = st->sb; | |
c47b0ff6 | 3495 | struct migr_record *migr_rec = super->migr_rec; |
949c47a0 | 3496 | struct imsm_dev *dev = get_imsm_dev(super, super->current_vol); |
238c0a71 AK |
3497 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
3498 | struct imsm_map *prev_map = get_imsm_map(dev, MAP_1); | |
b335e593 | 3499 | struct imsm_map *map_to_analyse = map; |
efb30e7f | 3500 | struct dl *dl; |
a5d85af7 | 3501 | int map_disks = info->array.raid_disks; |
bf5a934a | 3502 | |
95eeceeb | 3503 | memset(info, 0, sizeof(*info)); |
b335e593 AK |
3504 | if (prev_map) |
3505 | map_to_analyse = prev_map; | |
3506 | ||
ca0748fa | 3507 | dl = super->current_disk; |
9894ec0d | 3508 | |
bf5a934a | 3509 | info->container_member = super->current_vol; |
cd0430a1 | 3510 | info->array.raid_disks = map->num_members; |
b335e593 | 3511 | info->array.level = get_imsm_raid_level(map_to_analyse); |
bf5a934a DW |
3512 | info->array.layout = imsm_level_to_layout(info->array.level); |
3513 | info->array.md_minor = -1; | |
3514 | info->array.ctime = 0; | |
3515 | info->array.utime = 0; | |
b335e593 AK |
3516 | info->array.chunk_size = |
3517 | __le16_to_cpu(map_to_analyse->blocks_per_strip) << 9; | |
2432ce9b | 3518 | info->array.state = !(dev->vol.dirty & RAIDVOL_DIRTY); |
fcc2c9da | 3519 | info->custom_array_size = imsm_dev_size(dev); |
3ad25638 AK |
3520 | info->recovery_blocked = imsm_reshape_blocks_arrays_changes(st->sb); |
3521 | ||
3f510843 | 3522 | if (is_gen_migration(dev)) { |
195d1d76 PP |
3523 | /* |
3524 | * device prev_map should be added if it is in the middle | |
3525 | * of migration | |
3526 | */ | |
3527 | assert(prev_map); | |
3528 | ||
3f83228a | 3529 | info->reshape_active = 1; |
b335e593 AK |
3530 | info->new_level = get_imsm_raid_level(map); |
3531 | info->new_layout = imsm_level_to_layout(info->new_level); | |
3532 | info->new_chunk = __le16_to_cpu(map->blocks_per_strip) << 9; | |
3f83228a | 3533 | info->delta_disks = map->num_members - prev_map->num_members; |
493f5dd6 N |
3534 | if (info->delta_disks) { |
3535 | /* this needs to be applied to every array | |
3536 | * in the container. | |
3537 | */ | |
81219e70 | 3538 | info->reshape_active = CONTAINER_RESHAPE; |
493f5dd6 | 3539 | } |
3f83228a N |
3540 | /* We shape information that we give to md might have to be |
3541 | * modify to cope with md's requirement for reshaping arrays. | |
3542 | * For example, when reshaping a RAID0, md requires it to be | |
3543 | * presented as a degraded RAID4. | |
3544 | * Also if a RAID0 is migrating to a RAID5 we need to specify | |
3545 | * the array as already being RAID5, but the 'before' layout | |
3546 | * is a RAID4-like layout. | |
3547 | */ | |
3548 | switch (info->array.level) { | |
3549 | case 0: | |
3550 | switch(info->new_level) { | |
3551 | case 0: | |
3552 | /* conversion is happening as RAID4 */ | |
3553 | info->array.level = 4; | |
3554 | info->array.raid_disks += 1; | |
3555 | break; | |
3556 | case 5: | |
3557 | /* conversion is happening as RAID5 */ | |
3558 | info->array.level = 5; | |
3559 | info->array.layout = ALGORITHM_PARITY_N; | |
3f83228a N |
3560 | info->delta_disks -= 1; |
3561 | break; | |
3562 | default: | |
3563 | /* FIXME error message */ | |
3564 | info->array.level = UnSet; | |
3565 | break; | |
3566 | } | |
3567 | break; | |
3568 | } | |
b335e593 AK |
3569 | } else { |
3570 | info->new_level = UnSet; | |
3571 | info->new_layout = UnSet; | |
3572 | info->new_chunk = info->array.chunk_size; | |
3f83228a | 3573 | info->delta_disks = 0; |
b335e593 | 3574 | } |
ca0748fa | 3575 | |
efb30e7f DW |
3576 | if (dl) { |
3577 | info->disk.major = dl->major; | |
3578 | info->disk.minor = dl->minor; | |
ca0748fa | 3579 | info->disk.number = dl->index; |
656b6b5a N |
3580 | info->disk.raid_disk = get_imsm_disk_slot(map_to_analyse, |
3581 | dl->index); | |
efb30e7f | 3582 | } |
bf5a934a | 3583 | |
5551b113 | 3584 | info->data_offset = pba_of_lba0(map_to_analyse); |
44490938 | 3585 | info->component_size = calc_component_size(map, dev); |
3e684231 | 3586 | info->component_size = imsm_component_size_alignment_check( |
c41e00b2 AK |
3587 | info->array.level, |
3588 | info->array.chunk_size, | |
f36a9ecd | 3589 | super->sector_size, |
c41e00b2 | 3590 | info->component_size); |
5e46202e | 3591 | info->bb.supported = 1; |
139dae11 | 3592 | |
301406c9 | 3593 | memset(info->uuid, 0, sizeof(info->uuid)); |
921d9e16 | 3594 | info->recovery_start = MaxSector; |
bf5a934a | 3595 | |
c2462068 PB |
3596 | if (info->array.level == 5 && |
3597 | (dev->rwh_policy == RWH_DISTRIBUTED || | |
3598 | dev->rwh_policy == RWH_MULTIPLE_DISTRIBUTED)) { | |
2432ce9b AP |
3599 | info->consistency_policy = CONSISTENCY_POLICY_PPL; |
3600 | info->ppl_sector = get_ppl_sector(super, super->current_vol); | |
c2462068 PB |
3601 | if (dev->rwh_policy == RWH_MULTIPLE_DISTRIBUTED) |
3602 | info->ppl_size = MULTIPLE_PPL_AREA_SIZE_IMSM >> 9; | |
3603 | else | |
3604 | info->ppl_size = (PPL_HEADER_SIZE + PPL_ENTRY_SPACE) | |
3605 | >> 9; | |
2432ce9b AP |
3606 | } else if (info->array.level <= 0) { |
3607 | info->consistency_policy = CONSISTENCY_POLICY_NONE; | |
3608 | } else { | |
fbc42556 JR |
3609 | if (dev->rwh_policy == RWH_BITMAP) { |
3610 | info->bitmap_offset = get_bitmap_sector(super, super->current_vol); | |
3611 | info->consistency_policy = CONSISTENCY_POLICY_BITMAP; | |
3612 | } else { | |
3613 | info->consistency_policy = CONSISTENCY_POLICY_RESYNC; | |
3614 | } | |
2432ce9b AP |
3615 | } |
3616 | ||
d2e6d5d6 | 3617 | info->reshape_progress = 0; |
b6796ce1 | 3618 | info->resync_start = MaxSector; |
b9172665 | 3619 | if ((map_to_analyse->map_state == IMSM_T_STATE_UNINITIALIZED || |
2432ce9b | 3620 | !(info->array.state & 1)) && |
b9172665 | 3621 | imsm_reshape_blocks_arrays_changes(super) == 0) { |
301406c9 | 3622 | info->resync_start = 0; |
b6796ce1 AK |
3623 | } |
3624 | if (dev->vol.migr_state) { | |
1e5c6983 DW |
3625 | switch (migr_type(dev)) { |
3626 | case MIGR_REPAIR: | |
3627 | case MIGR_INIT: { | |
c47b0ff6 AK |
3628 | __u64 blocks_per_unit = blocks_per_migr_unit(super, |
3629 | dev); | |
4036e7ee | 3630 | __u64 units = vol_curr_migr_unit(dev); |
1e5c6983 DW |
3631 | |
3632 | info->resync_start = blocks_per_unit * units; | |
3633 | break; | |
3634 | } | |
d2e6d5d6 | 3635 | case MIGR_GEN_MIGR: { |
c47b0ff6 AK |
3636 | __u64 blocks_per_unit = blocks_per_migr_unit(super, |
3637 | dev); | |
9f421827 | 3638 | __u64 units = current_migr_unit(migr_rec); |
04fa9523 | 3639 | int used_disks; |
d2e6d5d6 | 3640 | |
befb629b AK |
3641 | if (__le32_to_cpu(migr_rec->ascending_migr) && |
3642 | (units < | |
9f421827 | 3643 | (get_num_migr_units(migr_rec)-1)) && |
befb629b AK |
3644 | (super->migr_rec->rec_status == |
3645 | __cpu_to_le32(UNIT_SRC_IN_CP_AREA))) | |
3646 | units++; | |
3647 | ||
d2e6d5d6 | 3648 | info->reshape_progress = blocks_per_unit * units; |
6289d1e0 | 3649 | |
7a862a02 | 3650 | dprintf("IMSM: General Migration checkpoint : %llu (%llu) -> read reshape progress : %llu\n", |
19986c72 MB |
3651 | (unsigned long long)units, |
3652 | (unsigned long long)blocks_per_unit, | |
3653 | info->reshape_progress); | |
75156c46 | 3654 | |
9529d343 | 3655 | used_disks = imsm_num_data_members(prev_map); |
75156c46 | 3656 | if (used_disks > 0) { |
895ffd99 | 3657 | info->custom_array_size = per_dev_array_size(map) * |
75156c46 | 3658 | used_disks; |
75156c46 | 3659 | } |
d2e6d5d6 | 3660 | } |
1e5c6983 DW |
3661 | case MIGR_VERIFY: |
3662 | /* we could emulate the checkpointing of | |
3663 | * 'sync_action=check' migrations, but for now | |
3664 | * we just immediately complete them | |
3665 | */ | |
3666 | case MIGR_REBUILD: | |
3667 | /* this is handled by container_content_imsm() */ | |
1e5c6983 DW |
3668 | case MIGR_STATE_CHANGE: |
3669 | /* FIXME handle other migrations */ | |
3670 | default: | |
3671 | /* we are not dirty, so... */ | |
3672 | info->resync_start = MaxSector; | |
3673 | } | |
b6796ce1 | 3674 | } |
301406c9 DW |
3675 | |
3676 | strncpy(info->name, (char *) dev->volume, MAX_RAID_SERIAL_LEN); | |
3677 | info->name[MAX_RAID_SERIAL_LEN] = 0; | |
bf5a934a | 3678 | |
f35f2525 N |
3679 | info->array.major_version = -1; |
3680 | info->array.minor_version = -2; | |
4dd2df09 | 3681 | sprintf(info->text_version, "/%s/%d", st->container_devnm, info->container_member); |
a67dd8cc | 3682 | info->safe_mode_delay = 4000; /* 4 secs like the Matrix driver */ |
51006d85 | 3683 | uuid_from_super_imsm(st, info->uuid); |
a5d85af7 N |
3684 | |
3685 | if (dmap) { | |
3686 | int i, j; | |
3687 | for (i=0; i<map_disks; i++) { | |
3688 | dmap[i] = 0; | |
3689 | if (i < info->array.raid_disks) { | |
3690 | struct imsm_disk *dsk; | |
238c0a71 | 3691 | j = get_imsm_disk_idx(dev, i, MAP_X); |
a5d85af7 N |
3692 | dsk = get_imsm_disk(super, j); |
3693 | if (dsk && (dsk->status & CONFIGURED_DISK)) | |
3694 | dmap[i] = 1; | |
3695 | } | |
3696 | } | |
3697 | } | |
81ac8b4d | 3698 | } |
bf5a934a | 3699 | |
3b451610 AK |
3700 | static __u8 imsm_check_degraded(struct intel_super *super, struct imsm_dev *dev, |
3701 | int failed, int look_in_map); | |
3702 | ||
3703 | static int imsm_count_failed(struct intel_super *super, struct imsm_dev *dev, | |
3704 | int look_in_map); | |
3705 | ||
3706 | static void manage_second_map(struct intel_super *super, struct imsm_dev *dev) | |
3707 | { | |
3708 | if (is_gen_migration(dev)) { | |
3709 | int failed; | |
3710 | __u8 map_state; | |
3711 | struct imsm_map *map2 = get_imsm_map(dev, MAP_1); | |
3712 | ||
3713 | failed = imsm_count_failed(super, dev, MAP_1); | |
238c0a71 | 3714 | map_state = imsm_check_degraded(super, dev, failed, MAP_1); |
3b451610 AK |
3715 | if (map2->map_state != map_state) { |
3716 | map2->map_state = map_state; | |
3717 | super->updates_pending++; | |
3718 | } | |
3719 | } | |
3720 | } | |
97b4d0e9 DW |
3721 | |
3722 | static struct imsm_disk *get_imsm_missing(struct intel_super *super, __u8 index) | |
3723 | { | |
3724 | struct dl *d; | |
3725 | ||
3726 | for (d = super->missing; d; d = d->next) | |
3727 | if (d->index == index) | |
3728 | return &d->disk; | |
3729 | return NULL; | |
3730 | } | |
3731 | ||
a5d85af7 | 3732 | static void getinfo_super_imsm(struct supertype *st, struct mdinfo *info, char *map) |
4f5bc454 DW |
3733 | { |
3734 | struct intel_super *super = st->sb; | |
4f5bc454 | 3735 | struct imsm_disk *disk; |
a5d85af7 | 3736 | int map_disks = info->array.raid_disks; |
476b00bd | 3737 | int max_enough = -1; |
ab3cb6b3 N |
3738 | int i; |
3739 | struct imsm_super *mpb; | |
4f5bc454 | 3740 | |
bf5a934a | 3741 | if (super->current_vol >= 0) { |
a5d85af7 | 3742 | getinfo_super_imsm_volume(st, info, map); |
bf5a934a DW |
3743 | return; |
3744 | } | |
95eeceeb | 3745 | memset(info, 0, sizeof(*info)); |
d23fe947 DW |
3746 | |
3747 | /* Set raid_disks to zero so that Assemble will always pull in valid | |
3748 | * spares | |
3749 | */ | |
3750 | info->array.raid_disks = 0; | |
cdddbdbc DW |
3751 | info->array.level = LEVEL_CONTAINER; |
3752 | info->array.layout = 0; | |
3753 | info->array.md_minor = -1; | |
1011e834 | 3754 | info->array.ctime = 0; /* N/A for imsm */ |
cdddbdbc DW |
3755 | info->array.utime = 0; |
3756 | info->array.chunk_size = 0; | |
3757 | ||
3758 | info->disk.major = 0; | |
3759 | info->disk.minor = 0; | |
cdddbdbc | 3760 | info->disk.raid_disk = -1; |
c2c087e6 | 3761 | info->reshape_active = 0; |
f35f2525 N |
3762 | info->array.major_version = -1; |
3763 | info->array.minor_version = -2; | |
c2c087e6 | 3764 | strcpy(info->text_version, "imsm"); |
a67dd8cc | 3765 | info->safe_mode_delay = 0; |
c2c087e6 DW |
3766 | info->disk.number = -1; |
3767 | info->disk.state = 0; | |
c5afc314 | 3768 | info->name[0] = 0; |
921d9e16 | 3769 | info->recovery_start = MaxSector; |
3ad25638 | 3770 | info->recovery_blocked = imsm_reshape_blocks_arrays_changes(st->sb); |
5e46202e | 3771 | info->bb.supported = 1; |
c2c087e6 | 3772 | |
97b4d0e9 | 3773 | /* do we have the all the insync disks that we expect? */ |
ab3cb6b3 | 3774 | mpb = super->anchor; |
b7d81a38 | 3775 | info->events = __le32_to_cpu(mpb->generation_num); |
97b4d0e9 | 3776 | |
ab3cb6b3 N |
3777 | for (i = 0; i < mpb->num_raid_devs; i++) { |
3778 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
476b00bd | 3779 | int failed, enough, j, missing = 0; |
ab3cb6b3 | 3780 | struct imsm_map *map; |
476b00bd | 3781 | __u8 state; |
97b4d0e9 | 3782 | |
476b00bd MT |
3783 | failed = imsm_count_failed(super, dev, MAP_0); |
3784 | state = imsm_check_degraded(super, dev, failed, MAP_0); | |
238c0a71 | 3785 | map = get_imsm_map(dev, MAP_0); |
ab3cb6b3 N |
3786 | |
3787 | /* any newly missing disks? | |
3788 | * (catches single-degraded vs double-degraded) | |
3789 | */ | |
3790 | for (j = 0; j < map->num_members; j++) { | |
238c0a71 | 3791 | __u32 ord = get_imsm_ord_tbl_ent(dev, j, MAP_0); |
ab3cb6b3 N |
3792 | __u32 idx = ord_to_idx(ord); |
3793 | ||
20dc76d1 MT |
3794 | if (super->disks && super->disks->index == (int)idx) |
3795 | info->disk.raid_disk = j; | |
3796 | ||
ab3cb6b3 N |
3797 | if (!(ord & IMSM_ORD_REBUILD) && |
3798 | get_imsm_missing(super, idx)) { | |
476b00bd | 3799 | missing = 1; |
ab3cb6b3 N |
3800 | break; |
3801 | } | |
97b4d0e9 | 3802 | } |
476b00bd MT |
3803 | |
3804 | if (state == IMSM_T_STATE_FAILED) | |
3805 | enough = -1; | |
3806 | else if (state == IMSM_T_STATE_DEGRADED && | |
3807 | (state != map->map_state || missing)) | |
3808 | enough = 0; | |
3809 | else /* we're normal, or already degraded */ | |
3810 | enough = 1; | |
3811 | if (is_gen_migration(dev) && missing) { | |
3812 | /* during general migration we need all disks | |
3813 | * that process is running on. | |
3814 | * No new missing disk is allowed. | |
3815 | */ | |
3816 | max_enough = -1; | |
3817 | enough = -1; | |
3818 | /* no more checks necessary | |
3819 | */ | |
3820 | break; | |
3821 | } | |
3822 | /* in the missing/failed disk case check to see | |
3823 | * if at least one array is runnable | |
3824 | */ | |
3825 | max_enough = max(max_enough, enough); | |
ab3cb6b3 | 3826 | } |
97b4d0e9 | 3827 | |
476b00bd MT |
3828 | info->container_enough = max_enough; |
3829 | ||
4a04ec6c | 3830 | if (super->disks) { |
14e8215b DW |
3831 | __u32 reserved = imsm_reserved_sectors(super, super->disks); |
3832 | ||
b9f594fe | 3833 | disk = &super->disks->disk; |
5551b113 | 3834 | info->data_offset = total_blocks(&super->disks->disk) - reserved; |
14e8215b | 3835 | info->component_size = reserved; |
25ed7e59 | 3836 | info->disk.state = is_configured(disk) ? (1 << MD_DISK_ACTIVE) : 0; |
df474657 DW |
3837 | /* we don't change info->disk.raid_disk here because |
3838 | * this state will be finalized in mdmon after we have | |
3839 | * found the 'most fresh' version of the metadata | |
3840 | */ | |
25ed7e59 | 3841 | info->disk.state |= is_failed(disk) ? (1 << MD_DISK_FAULTY) : 0; |
2432ce9b AP |
3842 | info->disk.state |= (is_spare(disk) || is_journal(disk)) ? |
3843 | 0 : (1 << MD_DISK_SYNC); | |
cdddbdbc | 3844 | } |
a575e2a7 DW |
3845 | |
3846 | /* only call uuid_from_super_imsm when this disk is part of a populated container, | |
3847 | * ->compare_super may have updated the 'num_raid_devs' field for spares | |
3848 | */ | |
3849 | if (info->disk.state & (1 << MD_DISK_SYNC) || super->anchor->num_raid_devs) | |
36ba7d48 | 3850 | uuid_from_super_imsm(st, info->uuid); |
22e263f6 AC |
3851 | else |
3852 | memcpy(info->uuid, uuid_zero, sizeof(uuid_zero)); | |
a5d85af7 N |
3853 | |
3854 | /* I don't know how to compute 'map' on imsm, so use safe default */ | |
3855 | if (map) { | |
3856 | int i; | |
3857 | for (i = 0; i < map_disks; i++) | |
3858 | map[i] = 1; | |
3859 | } | |
3860 | ||
cdddbdbc DW |
3861 | } |
3862 | ||
5c4cd5da AC |
3863 | /* allocates memory and fills disk in mdinfo structure |
3864 | * for each disk in array */ | |
3865 | struct mdinfo *getinfo_super_disks_imsm(struct supertype *st) | |
3866 | { | |
594dc1b8 | 3867 | struct mdinfo *mddev; |
5c4cd5da AC |
3868 | struct intel_super *super = st->sb; |
3869 | struct imsm_disk *disk; | |
3870 | int count = 0; | |
3871 | struct dl *dl; | |
3872 | if (!super || !super->disks) | |
3873 | return NULL; | |
3874 | dl = super->disks; | |
503975b9 | 3875 | mddev = xcalloc(1, sizeof(*mddev)); |
5c4cd5da AC |
3876 | while (dl) { |
3877 | struct mdinfo *tmp; | |
3878 | disk = &dl->disk; | |
503975b9 | 3879 | tmp = xcalloc(1, sizeof(*tmp)); |
5c4cd5da AC |
3880 | if (mddev->devs) |
3881 | tmp->next = mddev->devs; | |
3882 | mddev->devs = tmp; | |
3883 | tmp->disk.number = count++; | |
3884 | tmp->disk.major = dl->major; | |
3885 | tmp->disk.minor = dl->minor; | |
3886 | tmp->disk.state = is_configured(disk) ? | |
3887 | (1 << MD_DISK_ACTIVE) : 0; | |
3888 | tmp->disk.state |= is_failed(disk) ? (1 << MD_DISK_FAULTY) : 0; | |
3889 | tmp->disk.state |= is_spare(disk) ? 0 : (1 << MD_DISK_SYNC); | |
3890 | tmp->disk.raid_disk = -1; | |
3891 | dl = dl->next; | |
3892 | } | |
3893 | return mddev; | |
3894 | } | |
3895 | ||
cdddbdbc | 3896 | static int update_super_imsm(struct supertype *st, struct mdinfo *info, |
03312b52 MK |
3897 | enum update_opt update, char *devname, |
3898 | int verbose, int uuid_set, char *homehost) | |
cdddbdbc | 3899 | { |
f352c545 DW |
3900 | /* For 'assemble' and 'force' we need to return non-zero if any |
3901 | * change was made. For others, the return value is ignored. | |
3902 | * Update options are: | |
3903 | * force-one : This device looks a bit old but needs to be included, | |
3904 | * update age info appropriately. | |
3905 | * assemble: clear any 'faulty' flag to allow this device to | |
3906 | * be assembled. | |
3907 | * force-array: Array is degraded but being forced, mark it clean | |
3908 | * if that will be needed to assemble it. | |
3909 | * | |
3910 | * newdev: not used ???? | |
3911 | * grow: Array has gained a new device - this is currently for | |
3912 | * linear only | |
3913 | * resync: mark as dirty so a resync will happen. | |
3914 | * name: update the name - preserving the homehost | |
6e46bf34 | 3915 | * uuid: Change the uuid of the array to match watch is given |
f352c545 DW |
3916 | * |
3917 | * Following are not relevant for this imsm: | |
3918 | * sparc2.2 : update from old dodgey metadata | |
3919 | * super-minor: change the preferred_minor number | |
3920 | * summaries: update redundant counters. | |
f352c545 DW |
3921 | * homehost: update the recorded homehost |
3922 | * _reshape_progress: record new reshape_progress position. | |
3923 | */ | |
6e46bf34 DW |
3924 | int rv = 1; |
3925 | struct intel_super *super = st->sb; | |
3926 | struct imsm_super *mpb; | |
f352c545 | 3927 | |
6e46bf34 DW |
3928 | /* we can only update container info */ |
3929 | if (!super || super->current_vol >= 0 || !super->anchor) | |
3930 | return 1; | |
3931 | ||
3932 | mpb = super->anchor; | |
3933 | ||
03312b52 | 3934 | switch (update) { |
4345e135 | 3935 | case UOPT_UUID: |
81a5b4f5 N |
3936 | /* We take this to mean that the family_num should be updated. |
3937 | * However that is much smaller than the uuid so we cannot really | |
3938 | * allow an explicit uuid to be given. And it is hard to reliably | |
3939 | * know if one was. | |
3940 | * So if !uuid_set we know the current uuid is random and just used | |
3941 | * the first 'int' and copy it to the other 3 positions. | |
3942 | * Otherwise we require the 4 'int's to be the same as would be the | |
3943 | * case if we are using a random uuid. So an explicit uuid will be | |
3944 | * accepted as long as all for ints are the same... which shouldn't hurt | |
6e46bf34 | 3945 | */ |
81a5b4f5 N |
3946 | if (!uuid_set) { |
3947 | info->uuid[1] = info->uuid[2] = info->uuid[3] = info->uuid[0]; | |
6e46bf34 | 3948 | rv = 0; |
81a5b4f5 N |
3949 | } else { |
3950 | if (info->uuid[0] != info->uuid[1] || | |
3951 | info->uuid[1] != info->uuid[2] || | |
3952 | info->uuid[2] != info->uuid[3]) | |
3953 | rv = -1; | |
3954 | else | |
3955 | rv = 0; | |
6e46bf34 | 3956 | } |
81a5b4f5 N |
3957 | if (rv == 0) |
3958 | mpb->orig_family_num = info->uuid[0]; | |
4345e135 MK |
3959 | break; |
3960 | case UOPT_SPEC_ASSEMBLE: | |
6e46bf34 | 3961 | rv = 0; |
4345e135 MK |
3962 | break; |
3963 | default: | |
1e2b2765 | 3964 | rv = -1; |
4345e135 MK |
3965 | break; |
3966 | } | |
f352c545 | 3967 | |
6e46bf34 DW |
3968 | /* successful update? recompute checksum */ |
3969 | if (rv == 0) | |
3970 | mpb->check_sum = __le32_to_cpu(__gen_imsm_checksum(mpb)); | |
f352c545 DW |
3971 | |
3972 | return rv; | |
cdddbdbc DW |
3973 | } |
3974 | ||
c2c087e6 | 3975 | static size_t disks_to_mpb_size(int disks) |
cdddbdbc | 3976 | { |
c2c087e6 | 3977 | size_t size; |
cdddbdbc | 3978 | |
c2c087e6 DW |
3979 | size = sizeof(struct imsm_super); |
3980 | size += (disks - 1) * sizeof(struct imsm_disk); | |
3981 | size += 2 * sizeof(struct imsm_dev); | |
3982 | /* up to 2 maps per raid device (-2 for imsm_maps in imsm_dev */ | |
3983 | size += (4 - 2) * sizeof(struct imsm_map); | |
3984 | /* 4 possible disk_ord_tbl's */ | |
3985 | size += 4 * (disks - 1) * sizeof(__u32); | |
bbab0940 TM |
3986 | /* maximum bbm log */ |
3987 | size += sizeof(struct bbm_log); | |
c2c087e6 DW |
3988 | |
3989 | return size; | |
3990 | } | |
3991 | ||
387fcd59 N |
3992 | static __u64 avail_size_imsm(struct supertype *st, __u64 devsize, |
3993 | unsigned long long data_offset) | |
c2c087e6 DW |
3994 | { |
3995 | if (devsize < (MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS)) | |
3996 | return 0; | |
3997 | ||
3998 | return devsize - (MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS); | |
cdddbdbc DW |
3999 | } |
4000 | ||
ba2de7ba DW |
4001 | static void free_devlist(struct intel_super *super) |
4002 | { | |
4003 | struct intel_dev *dv; | |
4004 | ||
4005 | while (super->devlist) { | |
4006 | dv = super->devlist->next; | |
4007 | free(super->devlist->dev); | |
4008 | free(super->devlist); | |
4009 | super->devlist = dv; | |
4010 | } | |
4011 | } | |
4012 | ||
4013 | static void imsm_copy_dev(struct imsm_dev *dest, struct imsm_dev *src) | |
4014 | { | |
4015 | memcpy(dest, src, sizeof_imsm_dev(src, 0)); | |
4016 | } | |
4017 | ||
c7b8547c MT |
4018 | static int compare_super_imsm(struct supertype *st, struct supertype *tst, |
4019 | int verbose) | |
cdddbdbc | 4020 | { |
601ffa78 | 4021 | /* return: |
cdddbdbc | 4022 | * 0 same, or first was empty, and second was copied |
601ffa78 | 4023 | * 1 sb are different |
cdddbdbc DW |
4024 | */ |
4025 | struct intel_super *first = st->sb; | |
4026 | struct intel_super *sec = tst->sb; | |
4027 | ||
5d500228 N |
4028 | if (!first) { |
4029 | st->sb = tst->sb; | |
4030 | tst->sb = NULL; | |
4031 | return 0; | |
4032 | } | |
601ffa78 | 4033 | |
8603ea6f LM |
4034 | /* in platform dependent environment test if the disks |
4035 | * use the same Intel hba | |
601ffa78 OS |
4036 | * if not on Intel hba at all, allow anything. |
4037 | * doesn't check HBAs if num_raid_devs is not set, as it means | |
4038 | * it is a free floating spare, and all spares regardless of HBA type | |
4039 | * will fall into separate container during the assembly | |
8603ea6f | 4040 | */ |
601ffa78 | 4041 | if (first->hba && sec->hba && first->anchor->num_raid_devs != 0) { |
6b781d33 | 4042 | if (first->hba->type != sec->hba->type) { |
c7b8547c MT |
4043 | if (verbose) |
4044 | pr_err("HBAs of devices do not match %s != %s\n", | |
4045 | get_sys_dev_type(first->hba->type), | |
4046 | get_sys_dev_type(sec->hba->type)); | |
601ffa78 | 4047 | return 1; |
6b781d33 AP |
4048 | } |
4049 | if (first->orom != sec->orom) { | |
c7b8547c MT |
4050 | if (verbose) |
4051 | pr_err("HBAs of devices do not match %s != %s\n", | |
4052 | first->hba->pci_id, sec->hba->pci_id); | |
601ffa78 | 4053 | return 1; |
8603ea6f LM |
4054 | } |
4055 | } | |
cdddbdbc | 4056 | |
d23fe947 DW |
4057 | if (first->anchor->num_raid_devs > 0 && |
4058 | sec->anchor->num_raid_devs > 0) { | |
a2b97981 DW |
4059 | /* Determine if these disks might ever have been |
4060 | * related. Further disambiguation can only take place | |
4061 | * in load_super_imsm_all | |
4062 | */ | |
4063 | __u32 first_family = first->anchor->orig_family_num; | |
4064 | __u32 sec_family = sec->anchor->orig_family_num; | |
4065 | ||
f796af5d DW |
4066 | if (memcmp(first->anchor->sig, sec->anchor->sig, |
4067 | MAX_SIGNATURE_LENGTH) != 0) | |
601ffa78 | 4068 | return 1; |
f796af5d | 4069 | |
a2b97981 DW |
4070 | if (first_family == 0) |
4071 | first_family = first->anchor->family_num; | |
4072 | if (sec_family == 0) | |
4073 | sec_family = sec->anchor->family_num; | |
4074 | ||
4075 | if (first_family != sec_family) | |
601ffa78 | 4076 | return 1; |
f796af5d | 4077 | |
d23fe947 | 4078 | } |
cdddbdbc | 4079 | |
601ffa78 OS |
4080 | /* if an anchor does not have num_raid_devs set then it is a free |
4081 | * floating spare. don't assosiate spare with any array, as during assembly | |
4082 | * spares shall fall into separate container, from which they can be moved | |
4083 | * when necessary | |
4084 | */ | |
4085 | if (first->anchor->num_raid_devs ^ sec->anchor->num_raid_devs) | |
4086 | return 1; | |
3e372e5a | 4087 | |
cdddbdbc DW |
4088 | return 0; |
4089 | } | |
4090 | ||
0030e8d6 DW |
4091 | static void fd2devname(int fd, char *name) |
4092 | { | |
0030e8d6 | 4093 | char *nm; |
0030e8d6 | 4094 | |
7c798f87 MT |
4095 | nm = fd2kname(fd); |
4096 | if (!nm) | |
0030e8d6 | 4097 | return; |
9587c373 | 4098 | |
7c798f87 | 4099 | snprintf(name, MAX_RAID_SERIAL_LEN, "/dev/%s", nm); |
0030e8d6 DW |
4100 | } |
4101 | ||
21e9380b AP |
4102 | static int nvme_get_serial(int fd, void *buf, size_t buf_len) |
4103 | { | |
fcebeb77 | 4104 | char path[PATH_MAX]; |
21e9380b AP |
4105 | char *name = fd2kname(fd); |
4106 | ||
4107 | if (!name) | |
4108 | return 1; | |
4109 | ||
4110 | if (strncmp(name, "nvme", 4) != 0) | |
4111 | return 1; | |
4112 | ||
fcebeb77 MT |
4113 | if (!diskfd_to_devpath(fd, 1, path)) |
4114 | return 1; | |
21e9380b | 4115 | |
fcebeb77 | 4116 | return devpath_to_char(path, "serial", buf, buf_len, 0); |
21e9380b AP |
4117 | } |
4118 | ||
cdddbdbc DW |
4119 | extern int scsi_get_serial(int fd, void *buf, size_t buf_len); |
4120 | ||
4121 | static int imsm_read_serial(int fd, char *devname, | |
6da53c0e | 4122 | __u8 *serial, size_t serial_buf_len) |
cdddbdbc | 4123 | { |
21e9380b | 4124 | char buf[50]; |
cdddbdbc | 4125 | int rv; |
6da53c0e | 4126 | size_t len; |
316e2bf4 DW |
4127 | char *dest; |
4128 | char *src; | |
21e9380b AP |
4129 | unsigned int i; |
4130 | ||
4131 | memset(buf, 0, sizeof(buf)); | |
cdddbdbc | 4132 | |
d1cd231a KT |
4133 | if (check_env("IMSM_DEVNAME_AS_SERIAL")) { |
4134 | memset(serial, 0, serial_buf_len); | |
4135 | fd2devname(fd, (char *) serial); | |
4136 | return 0; | |
4137 | } | |
4138 | ||
21e9380b | 4139 | rv = nvme_get_serial(fd, buf, sizeof(buf)); |
cdddbdbc | 4140 | |
21e9380b AP |
4141 | if (rv) |
4142 | rv = scsi_get_serial(fd, buf, sizeof(buf)); | |
f9ba0ff1 | 4143 | |
cdddbdbc DW |
4144 | if (rv != 0) { |
4145 | if (devname) | |
e7b84f9d N |
4146 | pr_err("Failed to retrieve serial for %s\n", |
4147 | devname); | |
cdddbdbc DW |
4148 | return rv; |
4149 | } | |
4150 | ||
316e2bf4 DW |
4151 | /* trim all whitespace and non-printable characters and convert |
4152 | * ':' to ';' | |
4153 | */ | |
21e9380b AP |
4154 | for (i = 0, dest = buf; i < sizeof(buf) && buf[i]; i++) { |
4155 | src = &buf[i]; | |
316e2bf4 DW |
4156 | if (*src > 0x20) { |
4157 | /* ':' is reserved for use in placeholder serial | |
4158 | * numbers for missing disks | |
4159 | */ | |
4160 | if (*src == ':') | |
4161 | *dest++ = ';'; | |
4162 | else | |
4163 | *dest++ = *src; | |
4164 | } | |
4165 | } | |
21e9380b AP |
4166 | len = dest - buf; |
4167 | dest = buf; | |
316e2bf4 | 4168 | |
6da53c0e BK |
4169 | if (len > serial_buf_len) { |
4170 | /* truncate leading characters */ | |
4171 | dest += len - serial_buf_len; | |
4172 | len = serial_buf_len; | |
316e2bf4 | 4173 | } |
5c3db629 | 4174 | |
6da53c0e | 4175 | memset(serial, 0, serial_buf_len); |
316e2bf4 | 4176 | memcpy(serial, dest, len); |
cdddbdbc DW |
4177 | |
4178 | return 0; | |
4179 | } | |
4180 | ||
1f24f035 DW |
4181 | static int serialcmp(__u8 *s1, __u8 *s2) |
4182 | { | |
4183 | return strncmp((char *) s1, (char *) s2, MAX_RAID_SERIAL_LEN); | |
4184 | } | |
4185 | ||
4186 | static void serialcpy(__u8 *dest, __u8 *src) | |
4187 | { | |
4188 | strncpy((char *) dest, (char *) src, MAX_RAID_SERIAL_LEN); | |
4189 | } | |
4190 | ||
54c2c1ea DW |
4191 | static struct dl *serial_to_dl(__u8 *serial, struct intel_super *super) |
4192 | { | |
4193 | struct dl *dl; | |
4194 | ||
4195 | for (dl = super->disks; dl; dl = dl->next) | |
4196 | if (serialcmp(dl->serial, serial) == 0) | |
4197 | break; | |
4198 | ||
4199 | return dl; | |
4200 | } | |
4201 | ||
a2b97981 DW |
4202 | static struct imsm_disk * |
4203 | __serial_to_disk(__u8 *serial, struct imsm_super *mpb, int *idx) | |
4204 | { | |
4205 | int i; | |
4206 | ||
4207 | for (i = 0; i < mpb->num_disks; i++) { | |
4208 | struct imsm_disk *disk = __get_imsm_disk(mpb, i); | |
4209 | ||
4210 | if (serialcmp(disk->serial, serial) == 0) { | |
4211 | if (idx) | |
4212 | *idx = i; | |
4213 | return disk; | |
4214 | } | |
4215 | } | |
4216 | ||
4217 | return NULL; | |
4218 | } | |
4219 | ||
cdddbdbc DW |
4220 | static int |
4221 | load_imsm_disk(int fd, struct intel_super *super, char *devname, int keep_fd) | |
4222 | { | |
a2b97981 | 4223 | struct imsm_disk *disk; |
cdddbdbc DW |
4224 | struct dl *dl; |
4225 | struct stat stb; | |
cdddbdbc | 4226 | int rv; |
a2b97981 | 4227 | char name[40]; |
d23fe947 DW |
4228 | __u8 serial[MAX_RAID_SERIAL_LEN]; |
4229 | ||
6da53c0e | 4230 | rv = imsm_read_serial(fd, devname, serial, MAX_RAID_SERIAL_LEN); |
d23fe947 DW |
4231 | |
4232 | if (rv != 0) | |
4233 | return 2; | |
4234 | ||
503975b9 | 4235 | dl = xcalloc(1, sizeof(*dl)); |
cdddbdbc | 4236 | |
a2b97981 DW |
4237 | fstat(fd, &stb); |
4238 | dl->major = major(stb.st_rdev); | |
4239 | dl->minor = minor(stb.st_rdev); | |
4240 | dl->next = super->disks; | |
4241 | dl->fd = keep_fd ? fd : -1; | |
4242 | assert(super->disks == NULL); | |
4243 | super->disks = dl; | |
4244 | serialcpy(dl->serial, serial); | |
4245 | dl->index = -2; | |
4246 | dl->e = NULL; | |
4247 | fd2devname(fd, name); | |
4248 | if (devname) | |
503975b9 | 4249 | dl->devname = xstrdup(devname); |
a2b97981 | 4250 | else |
503975b9 | 4251 | dl->devname = xstrdup(name); |
cdddbdbc | 4252 | |
d23fe947 | 4253 | /* look up this disk's index in the current anchor */ |
a2b97981 DW |
4254 | disk = __serial_to_disk(dl->serial, super->anchor, &dl->index); |
4255 | if (disk) { | |
4256 | dl->disk = *disk; | |
4257 | /* only set index on disks that are a member of a | |
4258 | * populated contianer, i.e. one with raid_devs | |
4259 | */ | |
4260 | if (is_failed(&dl->disk)) | |
3f6efecc | 4261 | dl->index = -2; |
2432ce9b | 4262 | else if (is_spare(&dl->disk) || is_journal(&dl->disk)) |
a2b97981 | 4263 | dl->index = -1; |
3f6efecc DW |
4264 | } |
4265 | ||
949c47a0 DW |
4266 | return 0; |
4267 | } | |
4268 | ||
0c046afd DW |
4269 | /* When migrating map0 contains the 'destination' state while map1 |
4270 | * contains the current state. When not migrating map0 contains the | |
4271 | * current state. This routine assumes that map[0].map_state is set to | |
4272 | * the current array state before being called. | |
4273 | * | |
4274 | * Migration is indicated by one of the following states | |
4275 | * 1/ Idle (migr_state=0 map0state=normal||unitialized||degraded||failed) | |
e3bba0e0 | 4276 | * 2/ Initialize (migr_state=1 migr_type=MIGR_INIT map0state=normal |
0c046afd | 4277 | * map1state=unitialized) |
1484e727 | 4278 | * 3/ Repair (Resync) (migr_state=1 migr_type=MIGR_REPAIR map0state=normal |
0c046afd | 4279 | * map1state=normal) |
e3bba0e0 | 4280 | * 4/ Rebuild (migr_state=1 migr_type=MIGR_REBUILD map0state=normal |
0c046afd | 4281 | * map1state=degraded) |
8e59f3d8 AK |
4282 | * 5/ Migration (mig_state=1 migr_type=MIGR_GEN_MIGR map0state=normal |
4283 | * map1state=normal) | |
0c046afd | 4284 | */ |
8e59f3d8 AK |
4285 | static void migrate(struct imsm_dev *dev, struct intel_super *super, |
4286 | __u8 to_state, int migr_type) | |
3393c6af | 4287 | { |
0c046afd | 4288 | struct imsm_map *dest; |
238c0a71 | 4289 | struct imsm_map *src = get_imsm_map(dev, MAP_0); |
3393c6af | 4290 | |
0c046afd | 4291 | dev->vol.migr_state = 1; |
1484e727 | 4292 | set_migr_type(dev, migr_type); |
4036e7ee | 4293 | set_vol_curr_migr_unit(dev, 0); |
238c0a71 | 4294 | dest = get_imsm_map(dev, MAP_1); |
0c046afd | 4295 | |
0556e1a2 | 4296 | /* duplicate and then set the target end state in map[0] */ |
3393c6af | 4297 | memcpy(dest, src, sizeof_imsm_map(src)); |
fb12a745 | 4298 | if (migr_type == MIGR_GEN_MIGR) { |
0556e1a2 DW |
4299 | __u32 ord; |
4300 | int i; | |
4301 | ||
4302 | for (i = 0; i < src->num_members; i++) { | |
4303 | ord = __le32_to_cpu(src->disk_ord_tbl[i]); | |
4304 | set_imsm_ord_tbl_ent(src, i, ord_to_idx(ord)); | |
4305 | } | |
4306 | } | |
4307 | ||
8e59f3d8 AK |
4308 | if (migr_type == MIGR_GEN_MIGR) |
4309 | /* Clear migration record */ | |
4310 | memset(super->migr_rec, 0, sizeof(struct migr_record)); | |
4311 | ||
0c046afd | 4312 | src->map_state = to_state; |
949c47a0 | 4313 | } |
f8f603f1 | 4314 | |
809da78e AK |
4315 | static void end_migration(struct imsm_dev *dev, struct intel_super *super, |
4316 | __u8 map_state) | |
f8f603f1 | 4317 | { |
238c0a71 AK |
4318 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
4319 | struct imsm_map *prev = get_imsm_map(dev, dev->vol.migr_state == 0 ? | |
4320 | MAP_0 : MAP_1); | |
28bce06f | 4321 | int i, j; |
0556e1a2 DW |
4322 | |
4323 | /* merge any IMSM_ORD_REBUILD bits that were not successfully | |
4324 | * completed in the last migration. | |
4325 | * | |
28bce06f | 4326 | * FIXME add support for raid-level-migration |
0556e1a2 | 4327 | */ |
195d1d76 | 4328 | if (map_state != map->map_state && (is_gen_migration(dev) == false) && |
089f9d79 | 4329 | prev->map_state != IMSM_T_STATE_UNINITIALIZED) { |
809da78e AK |
4330 | /* when final map state is other than expected |
4331 | * merge maps (not for migration) | |
4332 | */ | |
4333 | int failed; | |
4334 | ||
4335 | for (i = 0; i < prev->num_members; i++) | |
4336 | for (j = 0; j < map->num_members; j++) | |
4337 | /* during online capacity expansion | |
4338 | * disks position can be changed | |
4339 | * if takeover is used | |
4340 | */ | |
4341 | if (ord_to_idx(map->disk_ord_tbl[j]) == | |
4342 | ord_to_idx(prev->disk_ord_tbl[i])) { | |
4343 | map->disk_ord_tbl[j] |= | |
4344 | prev->disk_ord_tbl[i]; | |
4345 | break; | |
4346 | } | |
4347 | failed = imsm_count_failed(super, dev, MAP_0); | |
4348 | map_state = imsm_check_degraded(super, dev, failed, MAP_0); | |
4349 | } | |
f8f603f1 DW |
4350 | |
4351 | dev->vol.migr_state = 0; | |
ea672ee1 | 4352 | set_migr_type(dev, 0); |
4036e7ee | 4353 | set_vol_curr_migr_unit(dev, 0); |
f8f603f1 DW |
4354 | map->map_state = map_state; |
4355 | } | |
949c47a0 DW |
4356 | |
4357 | static int parse_raid_devices(struct intel_super *super) | |
4358 | { | |
4359 | int i; | |
4360 | struct imsm_dev *dev_new; | |
4d7b1503 | 4361 | size_t len, len_migr; |
401d313b | 4362 | size_t max_len = 0; |
4d7b1503 DW |
4363 | size_t space_needed = 0; |
4364 | struct imsm_super *mpb = super->anchor; | |
949c47a0 DW |
4365 | |
4366 | for (i = 0; i < super->anchor->num_raid_devs; i++) { | |
4367 | struct imsm_dev *dev_iter = __get_imsm_dev(super->anchor, i); | |
ba2de7ba | 4368 | struct intel_dev *dv; |
949c47a0 | 4369 | |
4d7b1503 DW |
4370 | len = sizeof_imsm_dev(dev_iter, 0); |
4371 | len_migr = sizeof_imsm_dev(dev_iter, 1); | |
4372 | if (len_migr > len) | |
4373 | space_needed += len_migr - len; | |
ca9de185 | 4374 | |
503975b9 | 4375 | dv = xmalloc(sizeof(*dv)); |
401d313b AK |
4376 | if (max_len < len_migr) |
4377 | max_len = len_migr; | |
4378 | if (max_len > len_migr) | |
4379 | space_needed += max_len - len_migr; | |
503975b9 | 4380 | dev_new = xmalloc(max_len); |
949c47a0 | 4381 | imsm_copy_dev(dev_new, dev_iter); |
ba2de7ba DW |
4382 | dv->dev = dev_new; |
4383 | dv->index = i; | |
4384 | dv->next = super->devlist; | |
4385 | super->devlist = dv; | |
949c47a0 | 4386 | } |
cdddbdbc | 4387 | |
4d7b1503 DW |
4388 | /* ensure that super->buf is large enough when all raid devices |
4389 | * are migrating | |
4390 | */ | |
4391 | if (__le32_to_cpu(mpb->mpb_size) + space_needed > super->len) { | |
4392 | void *buf; | |
4393 | ||
f36a9ecd PB |
4394 | len = ROUND_UP(__le32_to_cpu(mpb->mpb_size) + space_needed, |
4395 | super->sector_size); | |
4396 | if (posix_memalign(&buf, MAX_SECTOR_SIZE, len) != 0) | |
4d7b1503 DW |
4397 | return 1; |
4398 | ||
1f45a8ad DW |
4399 | memcpy(buf, super->buf, super->len); |
4400 | memset(buf + super->len, 0, len - super->len); | |
4d7b1503 DW |
4401 | free(super->buf); |
4402 | super->buf = buf; | |
4403 | super->len = len; | |
4404 | } | |
ca9de185 | 4405 | |
bbab0940 TM |
4406 | super->extra_space += space_needed; |
4407 | ||
cdddbdbc DW |
4408 | return 0; |
4409 | } | |
4410 | ||
e2f41b2c AK |
4411 | /******************************************************************************* |
4412 | * Function: check_mpb_migr_compatibility | |
4413 | * Description: Function checks for unsupported migration features: | |
4414 | * - migration optimization area (pba_of_lba0) | |
4415 | * - descending reshape (ascending_migr) | |
4416 | * Parameters: | |
4417 | * super : imsm metadata information | |
4418 | * Returns: | |
4419 | * 0 : migration is compatible | |
4420 | * -1 : migration is not compatible | |
4421 | ******************************************************************************/ | |
4422 | int check_mpb_migr_compatibility(struct intel_super *super) | |
4423 | { | |
4424 | struct imsm_map *map0, *map1; | |
4425 | struct migr_record *migr_rec = super->migr_rec; | |
4426 | int i; | |
4427 | ||
4428 | for (i = 0; i < super->anchor->num_raid_devs; i++) { | |
4429 | struct imsm_dev *dev_iter = __get_imsm_dev(super->anchor, i); | |
4430 | ||
756a15f3 | 4431 | if (dev_iter->vol.migr_state == 1 && |
e2f41b2c AK |
4432 | dev_iter->vol.migr_type == MIGR_GEN_MIGR) { |
4433 | /* This device is migrating */ | |
238c0a71 AK |
4434 | map0 = get_imsm_map(dev_iter, MAP_0); |
4435 | map1 = get_imsm_map(dev_iter, MAP_1); | |
5551b113 | 4436 | if (pba_of_lba0(map0) != pba_of_lba0(map1)) |
e2f41b2c AK |
4437 | /* migration optimization area was used */ |
4438 | return -1; | |
fc54fe7a JS |
4439 | if (migr_rec->ascending_migr == 0 && |
4440 | migr_rec->dest_depth_per_unit > 0) | |
e2f41b2c AK |
4441 | /* descending reshape not supported yet */ |
4442 | return -1; | |
4443 | } | |
4444 | } | |
4445 | return 0; | |
4446 | } | |
4447 | ||
d23fe947 | 4448 | static void __free_imsm(struct intel_super *super, int free_disks); |
9ca2c81c | 4449 | |
cdddbdbc | 4450 | /* load_imsm_mpb - read matrix metadata |
f2f5c343 | 4451 | * allocates super->mpb to be freed by free_imsm |
cdddbdbc DW |
4452 | */ |
4453 | static int load_imsm_mpb(int fd, struct intel_super *super, char *devname) | |
4454 | { | |
4455 | unsigned long long dsize; | |
cdddbdbc | 4456 | unsigned long long sectors; |
f36a9ecd | 4457 | unsigned int sector_size = super->sector_size; |
cdddbdbc | 4458 | struct stat; |
6416d527 | 4459 | struct imsm_super *anchor; |
cdddbdbc DW |
4460 | __u32 check_sum; |
4461 | ||
cdddbdbc | 4462 | get_dev_size(fd, NULL, &dsize); |
f36a9ecd | 4463 | if (dsize < 2*sector_size) { |
64436f06 | 4464 | if (devname) |
e7b84f9d N |
4465 | pr_err("%s: device to small for imsm\n", |
4466 | devname); | |
64436f06 N |
4467 | return 1; |
4468 | } | |
cdddbdbc | 4469 | |
f36a9ecd | 4470 | if (lseek64(fd, dsize - (sector_size * 2), SEEK_SET) < 0) { |
cdddbdbc | 4471 | if (devname) |
e7b84f9d N |
4472 | pr_err("Cannot seek to anchor block on %s: %s\n", |
4473 | devname, strerror(errno)); | |
cdddbdbc DW |
4474 | return 1; |
4475 | } | |
4476 | ||
f36a9ecd | 4477 | if (posix_memalign((void **)&anchor, sector_size, sector_size) != 0) { |
ad97895e | 4478 | if (devname) |
7a862a02 | 4479 | pr_err("Failed to allocate imsm anchor buffer on %s\n", devname); |
ad97895e DW |
4480 | return 1; |
4481 | } | |
466070ad | 4482 | if ((unsigned int)read(fd, anchor, sector_size) != sector_size) { |
cdddbdbc | 4483 | if (devname) |
e7b84f9d N |
4484 | pr_err("Cannot read anchor block on %s: %s\n", |
4485 | devname, strerror(errno)); | |
6416d527 | 4486 | free(anchor); |
cdddbdbc DW |
4487 | return 1; |
4488 | } | |
4489 | ||
6416d527 | 4490 | if (strncmp((char *) anchor->sig, MPB_SIGNATURE, MPB_SIG_LEN) != 0) { |
cdddbdbc | 4491 | if (devname) |
e7b84f9d | 4492 | pr_err("no IMSM anchor on %s\n", devname); |
6416d527 | 4493 | free(anchor); |
cdddbdbc DW |
4494 | return 2; |
4495 | } | |
4496 | ||
d23fe947 | 4497 | __free_imsm(super, 0); |
f2f5c343 LM |
4498 | /* reload capability and hba */ |
4499 | ||
4500 | /* capability and hba must be updated with new super allocation */ | |
d424212e | 4501 | find_intel_hba_capability(fd, super, devname); |
f36a9ecd PB |
4502 | super->len = ROUND_UP(anchor->mpb_size, sector_size); |
4503 | if (posix_memalign(&super->buf, MAX_SECTOR_SIZE, super->len) != 0) { | |
cdddbdbc | 4504 | if (devname) |
e7b84f9d N |
4505 | pr_err("unable to allocate %zu byte mpb buffer\n", |
4506 | super->len); | |
6416d527 | 4507 | free(anchor); |
cdddbdbc DW |
4508 | return 2; |
4509 | } | |
f36a9ecd | 4510 | memcpy(super->buf, anchor, sector_size); |
cdddbdbc | 4511 | |
f36a9ecd | 4512 | sectors = mpb_sectors(anchor, sector_size) - 1; |
6416d527 | 4513 | free(anchor); |
8e59f3d8 | 4514 | |
85337573 AO |
4515 | if (posix_memalign(&super->migr_rec_buf, MAX_SECTOR_SIZE, |
4516 | MIGR_REC_BUF_SECTORS*MAX_SECTOR_SIZE) != 0) { | |
1ade5cc1 | 4517 | pr_err("could not allocate migr_rec buffer\n"); |
8e59f3d8 | 4518 | free(super->buf); |
50cd06b4 | 4519 | super->buf = NULL; |
8e59f3d8 AK |
4520 | return 2; |
4521 | } | |
51d83f5d | 4522 | super->clean_migration_record_by_mdmon = 0; |
8e59f3d8 | 4523 | |
949c47a0 | 4524 | if (!sectors) { |
ecf45690 DW |
4525 | check_sum = __gen_imsm_checksum(super->anchor); |
4526 | if (check_sum != __le32_to_cpu(super->anchor->check_sum)) { | |
4527 | if (devname) | |
e7b84f9d N |
4528 | pr_err("IMSM checksum %x != %x on %s\n", |
4529 | check_sum, | |
4530 | __le32_to_cpu(super->anchor->check_sum), | |
4531 | devname); | |
ecf45690 DW |
4532 | return 2; |
4533 | } | |
4534 | ||
a2b97981 | 4535 | return 0; |
949c47a0 | 4536 | } |
cdddbdbc DW |
4537 | |
4538 | /* read the extended mpb */ | |
f36a9ecd | 4539 | if (lseek64(fd, dsize - (sector_size * (2 + sectors)), SEEK_SET) < 0) { |
cdddbdbc | 4540 | if (devname) |
e7b84f9d N |
4541 | pr_err("Cannot seek to extended mpb on %s: %s\n", |
4542 | devname, strerror(errno)); | |
cdddbdbc DW |
4543 | return 1; |
4544 | } | |
4545 | ||
f36a9ecd PB |
4546 | if ((unsigned int)read(fd, super->buf + sector_size, |
4547 | super->len - sector_size) != super->len - sector_size) { | |
cdddbdbc | 4548 | if (devname) |
e7b84f9d N |
4549 | pr_err("Cannot read extended mpb on %s: %s\n", |
4550 | devname, strerror(errno)); | |
cdddbdbc DW |
4551 | return 2; |
4552 | } | |
4553 | ||
949c47a0 DW |
4554 | check_sum = __gen_imsm_checksum(super->anchor); |
4555 | if (check_sum != __le32_to_cpu(super->anchor->check_sum)) { | |
cdddbdbc | 4556 | if (devname) |
e7b84f9d N |
4557 | pr_err("IMSM checksum %x != %x on %s\n", |
4558 | check_sum, __le32_to_cpu(super->anchor->check_sum), | |
4559 | devname); | |
db575f3b | 4560 | return 3; |
cdddbdbc DW |
4561 | } |
4562 | ||
a2b97981 DW |
4563 | return 0; |
4564 | } | |
4565 | ||
8e59f3d8 AK |
4566 | static int read_imsm_migr_rec(int fd, struct intel_super *super); |
4567 | ||
97f81ee2 CA |
4568 | /* clears hi bits in metadata if MPB_ATTRIB_2TB_DISK not set */ |
4569 | static void clear_hi(struct intel_super *super) | |
4570 | { | |
4571 | struct imsm_super *mpb = super->anchor; | |
4572 | int i, n; | |
4573 | if (mpb->attributes & MPB_ATTRIB_2TB_DISK) | |
4574 | return; | |
4575 | for (i = 0; i < mpb->num_disks; ++i) { | |
4576 | struct imsm_disk *disk = &mpb->disk[i]; | |
4577 | disk->total_blocks_hi = 0; | |
4578 | } | |
4579 | for (i = 0; i < mpb->num_raid_devs; ++i) { | |
4580 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
97f81ee2 CA |
4581 | for (n = 0; n < 2; ++n) { |
4582 | struct imsm_map *map = get_imsm_map(dev, n); | |
4583 | if (!map) | |
4584 | continue; | |
4585 | map->pba_of_lba0_hi = 0; | |
4586 | map->blocks_per_member_hi = 0; | |
4587 | map->num_data_stripes_hi = 0; | |
4588 | } | |
4589 | } | |
4590 | } | |
4591 | ||
a2b97981 DW |
4592 | static int |
4593 | load_and_parse_mpb(int fd, struct intel_super *super, char *devname, int keep_fd) | |
4594 | { | |
4595 | int err; | |
4596 | ||
4597 | err = load_imsm_mpb(fd, super, devname); | |
4598 | if (err) | |
4599 | return err; | |
f36a9ecd PB |
4600 | if (super->sector_size == 4096) |
4601 | convert_from_4k(super); | |
a2b97981 DW |
4602 | err = load_imsm_disk(fd, super, devname, keep_fd); |
4603 | if (err) | |
4604 | return err; | |
4605 | err = parse_raid_devices(super); | |
8d67477f TM |
4606 | if (err) |
4607 | return err; | |
4608 | err = load_bbm_log(super); | |
97f81ee2 | 4609 | clear_hi(super); |
a2b97981 | 4610 | return err; |
cdddbdbc DW |
4611 | } |
4612 | ||
4389ce73 | 4613 | static void __free_imsm_disk(struct dl *d, int do_close) |
ae6aad82 | 4614 | { |
4389ce73 MT |
4615 | if (do_close) |
4616 | close_fd(&d->fd); | |
ae6aad82 DW |
4617 | if (d->devname) |
4618 | free(d->devname); | |
0dcecb2e DW |
4619 | if (d->e) |
4620 | free(d->e); | |
ae6aad82 DW |
4621 | free(d); |
4622 | ||
4623 | } | |
1a64be56 | 4624 | |
cdddbdbc DW |
4625 | static void free_imsm_disks(struct intel_super *super) |
4626 | { | |
47ee5a45 | 4627 | struct dl *d; |
cdddbdbc | 4628 | |
47ee5a45 DW |
4629 | while (super->disks) { |
4630 | d = super->disks; | |
cdddbdbc | 4631 | super->disks = d->next; |
3a85bf0e | 4632 | __free_imsm_disk(d, 1); |
cdddbdbc | 4633 | } |
cb82edca AK |
4634 | while (super->disk_mgmt_list) { |
4635 | d = super->disk_mgmt_list; | |
4636 | super->disk_mgmt_list = d->next; | |
3a85bf0e | 4637 | __free_imsm_disk(d, 1); |
cb82edca | 4638 | } |
47ee5a45 DW |
4639 | while (super->missing) { |
4640 | d = super->missing; | |
4641 | super->missing = d->next; | |
3a85bf0e | 4642 | __free_imsm_disk(d, 1); |
47ee5a45 DW |
4643 | } |
4644 | ||
cdddbdbc DW |
4645 | } |
4646 | ||
9ca2c81c | 4647 | /* free all the pieces hanging off of a super pointer */ |
d23fe947 | 4648 | static void __free_imsm(struct intel_super *super, int free_disks) |
cdddbdbc | 4649 | { |
88654014 LM |
4650 | struct intel_hba *elem, *next; |
4651 | ||
9ca2c81c | 4652 | if (super->buf) { |
949c47a0 | 4653 | free(super->buf); |
9ca2c81c DW |
4654 | super->buf = NULL; |
4655 | } | |
f2f5c343 LM |
4656 | /* unlink capability description */ |
4657 | super->orom = NULL; | |
8e59f3d8 AK |
4658 | if (super->migr_rec_buf) { |
4659 | free(super->migr_rec_buf); | |
4660 | super->migr_rec_buf = NULL; | |
4661 | } | |
d23fe947 DW |
4662 | if (free_disks) |
4663 | free_imsm_disks(super); | |
ba2de7ba | 4664 | free_devlist(super); |
88654014 LM |
4665 | elem = super->hba; |
4666 | while (elem) { | |
4667 | if (elem->path) | |
4668 | free((void *)elem->path); | |
4669 | next = elem->next; | |
4670 | free(elem); | |
4671 | elem = next; | |
88c32bb1 | 4672 | } |
8d67477f TM |
4673 | if (super->bbm_log) |
4674 | free(super->bbm_log); | |
88654014 | 4675 | super->hba = NULL; |
cdddbdbc DW |
4676 | } |
4677 | ||
9ca2c81c DW |
4678 | static void free_imsm(struct intel_super *super) |
4679 | { | |
d23fe947 | 4680 | __free_imsm(super, 1); |
928f1424 | 4681 | free(super->bb.entries); |
9ca2c81c DW |
4682 | free(super); |
4683 | } | |
cdddbdbc DW |
4684 | |
4685 | static void free_super_imsm(struct supertype *st) | |
4686 | { | |
4687 | struct intel_super *super = st->sb; | |
4688 | ||
4689 | if (!super) | |
4690 | return; | |
4691 | ||
4692 | free_imsm(super); | |
4693 | st->sb = NULL; | |
4694 | } | |
4695 | ||
49133e57 | 4696 | static struct intel_super *alloc_super(void) |
c2c087e6 | 4697 | { |
503975b9 | 4698 | struct intel_super *super = xcalloc(1, sizeof(*super)); |
c2c087e6 | 4699 | |
503975b9 N |
4700 | super->current_vol = -1; |
4701 | super->create_offset = ~((unsigned long long) 0); | |
928f1424 TM |
4702 | |
4703 | super->bb.entries = xmalloc(BBM_LOG_MAX_ENTRIES * | |
4704 | sizeof(struct md_bb_entry)); | |
4705 | if (!super->bb.entries) { | |
4706 | free(super); | |
4707 | return NULL; | |
4708 | } | |
4709 | ||
c2c087e6 DW |
4710 | return super; |
4711 | } | |
4712 | ||
f0f5a016 LM |
4713 | /* |
4714 | * find and allocate hba and OROM/EFI based on valid fd of RAID component device | |
4715 | */ | |
d424212e | 4716 | static int find_intel_hba_capability(int fd, struct intel_super *super, char *devname) |
f0f5a016 LM |
4717 | { |
4718 | struct sys_dev *hba_name; | |
4719 | int rv = 0; | |
4720 | ||
4389ce73 | 4721 | if (is_fd_valid(fd) && test_partition(fd)) { |
3a30e28e MT |
4722 | pr_err("imsm: %s is a partition, cannot be used in IMSM\n", |
4723 | devname); | |
4724 | return 1; | |
4725 | } | |
420dafcd | 4726 | if (!is_fd_valid(fd) || check_no_platform()) { |
f2f5c343 | 4727 | super->orom = NULL; |
f0f5a016 LM |
4728 | super->hba = NULL; |
4729 | return 0; | |
4730 | } | |
4731 | hba_name = find_disk_attached_hba(fd, NULL); | |
4732 | if (!hba_name) { | |
d424212e | 4733 | if (devname) |
e7b84f9d N |
4734 | pr_err("%s is not attached to Intel(R) RAID controller.\n", |
4735 | devname); | |
f0f5a016 LM |
4736 | return 1; |
4737 | } | |
4738 | rv = attach_hba_to_super(super, hba_name); | |
4739 | if (rv == 2) { | |
d424212e N |
4740 | if (devname) { |
4741 | struct intel_hba *hba = super->hba; | |
f0f5a016 | 4742 | |
60f0f54d PB |
4743 | pr_err("%s is attached to Intel(R) %s %s (%s),\n" |
4744 | " but the container is assigned to Intel(R) %s %s (", | |
d424212e | 4745 | devname, |
614902f6 | 4746 | get_sys_dev_type(hba_name->type), |
75350d87 KF |
4747 | hba_name->type == SYS_DEV_VMD || hba_name->type == SYS_DEV_SATA_VMD ? |
4748 | "domain" : "RAID controller", | |
f0f5a016 | 4749 | hba_name->pci_id ? : "Err!", |
60f0f54d | 4750 | get_sys_dev_type(super->hba->type), |
75350d87 KF |
4751 | hba->type == SYS_DEV_VMD || hba_name->type == SYS_DEV_SATA_VMD ? |
4752 | "domain" : "RAID controller"); | |
f0f5a016 | 4753 | |
f0f5a016 LM |
4754 | while (hba) { |
4755 | fprintf(stderr, "%s", hba->pci_id ? : "Err!"); | |
4756 | if (hba->next) | |
4757 | fprintf(stderr, ", "); | |
4758 | hba = hba->next; | |
4759 | } | |
6b781d33 | 4760 | fprintf(stderr, ").\n" |
cca67208 | 4761 | " Mixing devices attached to different controllers is not allowed.\n"); |
f0f5a016 | 4762 | } |
f0f5a016 LM |
4763 | return 2; |
4764 | } | |
6b781d33 | 4765 | super->orom = find_imsm_capability(hba_name); |
f2f5c343 LM |
4766 | if (!super->orom) |
4767 | return 3; | |
614902f6 | 4768 | |
f0f5a016 LM |
4769 | return 0; |
4770 | } | |
4771 | ||
47ee5a45 DW |
4772 | /* find_missing - helper routine for load_super_imsm_all that identifies |
4773 | * disks that have disappeared from the system. This routine relies on | |
4774 | * the mpb being uptodate, which it is at load time. | |
4775 | */ | |
4776 | static int find_missing(struct intel_super *super) | |
4777 | { | |
4778 | int i; | |
4779 | struct imsm_super *mpb = super->anchor; | |
4780 | struct dl *dl; | |
4781 | struct imsm_disk *disk; | |
47ee5a45 DW |
4782 | |
4783 | for (i = 0; i < mpb->num_disks; i++) { | |
4784 | disk = __get_imsm_disk(mpb, i); | |
54c2c1ea | 4785 | dl = serial_to_dl(disk->serial, super); |
47ee5a45 DW |
4786 | if (dl) |
4787 | continue; | |
47ee5a45 | 4788 | |
503975b9 | 4789 | dl = xmalloc(sizeof(*dl)); |
47ee5a45 DW |
4790 | dl->major = 0; |
4791 | dl->minor = 0; | |
4792 | dl->fd = -1; | |
503975b9 | 4793 | dl->devname = xstrdup("missing"); |
47ee5a45 DW |
4794 | dl->index = i; |
4795 | serialcpy(dl->serial, disk->serial); | |
4796 | dl->disk = *disk; | |
689c9bf3 | 4797 | dl->e = NULL; |
47ee5a45 DW |
4798 | dl->next = super->missing; |
4799 | super->missing = dl; | |
4800 | } | |
4801 | ||
4802 | return 0; | |
4803 | } | |
4804 | ||
a2b97981 DW |
4805 | static struct intel_disk *disk_list_get(__u8 *serial, struct intel_disk *disk_list) |
4806 | { | |
4807 | struct intel_disk *idisk = disk_list; | |
4808 | ||
4809 | while (idisk) { | |
4810 | if (serialcmp(idisk->disk.serial, serial) == 0) | |
4811 | break; | |
4812 | idisk = idisk->next; | |
4813 | } | |
4814 | ||
4815 | return idisk; | |
4816 | } | |
4817 | ||
4818 | static int __prep_thunderdome(struct intel_super **table, int tbl_size, | |
4819 | struct intel_super *super, | |
4820 | struct intel_disk **disk_list) | |
4821 | { | |
4822 | struct imsm_disk *d = &super->disks->disk; | |
4823 | struct imsm_super *mpb = super->anchor; | |
4824 | int i, j; | |
4825 | ||
4826 | for (i = 0; i < tbl_size; i++) { | |
4827 | struct imsm_super *tbl_mpb = table[i]->anchor; | |
4828 | struct imsm_disk *tbl_d = &table[i]->disks->disk; | |
4829 | ||
4830 | if (tbl_mpb->family_num == mpb->family_num) { | |
4831 | if (tbl_mpb->check_sum == mpb->check_sum) { | |
1ade5cc1 N |
4832 | dprintf("mpb from %d:%d matches %d:%d\n", |
4833 | super->disks->major, | |
a2b97981 DW |
4834 | super->disks->minor, |
4835 | table[i]->disks->major, | |
4836 | table[i]->disks->minor); | |
4837 | break; | |
4838 | } | |
4839 | ||
4840 | if (((is_configured(d) && !is_configured(tbl_d)) || | |
4841 | is_configured(d) == is_configured(tbl_d)) && | |
4842 | tbl_mpb->generation_num < mpb->generation_num) { | |
4843 | /* current version of the mpb is a | |
4844 | * better candidate than the one in | |
4845 | * super_table, but copy over "cross | |
4846 | * generational" status | |
4847 | */ | |
4848 | struct intel_disk *idisk; | |
4849 | ||
1ade5cc1 N |
4850 | dprintf("mpb from %d:%d replaces %d:%d\n", |
4851 | super->disks->major, | |
a2b97981 DW |
4852 | super->disks->minor, |
4853 | table[i]->disks->major, | |
4854 | table[i]->disks->minor); | |
4855 | ||
4856 | idisk = disk_list_get(tbl_d->serial, *disk_list); | |
4857 | if (idisk && is_failed(&idisk->disk)) | |
4858 | tbl_d->status |= FAILED_DISK; | |
4859 | break; | |
4860 | } else { | |
4861 | struct intel_disk *idisk; | |
4862 | struct imsm_disk *disk; | |
4863 | ||
4864 | /* tbl_mpb is more up to date, but copy | |
4865 | * over cross generational status before | |
4866 | * returning | |
4867 | */ | |
4868 | disk = __serial_to_disk(d->serial, mpb, NULL); | |
4869 | if (disk && is_failed(disk)) | |
4870 | d->status |= FAILED_DISK; | |
4871 | ||
4872 | idisk = disk_list_get(d->serial, *disk_list); | |
4873 | if (idisk) { | |
4874 | idisk->owner = i; | |
4875 | if (disk && is_configured(disk)) | |
4876 | idisk->disk.status |= CONFIGURED_DISK; | |
4877 | } | |
4878 | ||
1ade5cc1 N |
4879 | dprintf("mpb from %d:%d prefer %d:%d\n", |
4880 | super->disks->major, | |
a2b97981 DW |
4881 | super->disks->minor, |
4882 | table[i]->disks->major, | |
4883 | table[i]->disks->minor); | |
4884 | ||
4885 | return tbl_size; | |
4886 | } | |
4887 | } | |
4888 | } | |
4889 | ||
4890 | if (i >= tbl_size) | |
4891 | table[tbl_size++] = super; | |
4892 | else | |
4893 | table[i] = super; | |
4894 | ||
4895 | /* update/extend the merged list of imsm_disk records */ | |
4896 | for (j = 0; j < mpb->num_disks; j++) { | |
4897 | struct imsm_disk *disk = __get_imsm_disk(mpb, j); | |
4898 | struct intel_disk *idisk; | |
4899 | ||
4900 | idisk = disk_list_get(disk->serial, *disk_list); | |
4901 | if (idisk) { | |
4902 | idisk->disk.status |= disk->status; | |
4903 | if (is_configured(&idisk->disk) || | |
4904 | is_failed(&idisk->disk)) | |
4905 | idisk->disk.status &= ~(SPARE_DISK); | |
4906 | } else { | |
503975b9 | 4907 | idisk = xcalloc(1, sizeof(*idisk)); |
a2b97981 DW |
4908 | idisk->owner = IMSM_UNKNOWN_OWNER; |
4909 | idisk->disk = *disk; | |
4910 | idisk->next = *disk_list; | |
4911 | *disk_list = idisk; | |
4912 | } | |
4913 | ||
4914 | if (serialcmp(idisk->disk.serial, d->serial) == 0) | |
4915 | idisk->owner = i; | |
4916 | } | |
4917 | ||
4918 | return tbl_size; | |
4919 | } | |
4920 | ||
4921 | static struct intel_super * | |
4922 | validate_members(struct intel_super *super, struct intel_disk *disk_list, | |
4923 | const int owner) | |
4924 | { | |
4925 | struct imsm_super *mpb = super->anchor; | |
4926 | int ok_count = 0; | |
4927 | int i; | |
4928 | ||
4929 | for (i = 0; i < mpb->num_disks; i++) { | |
4930 | struct imsm_disk *disk = __get_imsm_disk(mpb, i); | |
4931 | struct intel_disk *idisk; | |
4932 | ||
4933 | idisk = disk_list_get(disk->serial, disk_list); | |
4934 | if (idisk) { | |
4935 | if (idisk->owner == owner || | |
4936 | idisk->owner == IMSM_UNKNOWN_OWNER) | |
4937 | ok_count++; | |
4938 | else | |
1ade5cc1 N |
4939 | dprintf("'%.16s' owner %d != %d\n", |
4940 | disk->serial, idisk->owner, | |
a2b97981 DW |
4941 | owner); |
4942 | } else { | |
1ade5cc1 N |
4943 | dprintf("unknown disk %x [%d]: %.16s\n", |
4944 | __le32_to_cpu(mpb->family_num), i, | |
a2b97981 DW |
4945 | disk->serial); |
4946 | break; | |
4947 | } | |
4948 | } | |
4949 | ||
4950 | if (ok_count == mpb->num_disks) | |
4951 | return super; | |
4952 | return NULL; | |
4953 | } | |
4954 | ||
4955 | static void show_conflicts(__u32 family_num, struct intel_super *super_list) | |
4956 | { | |
4957 | struct intel_super *s; | |
4958 | ||
4959 | for (s = super_list; s; s = s->next) { | |
4960 | if (family_num != s->anchor->family_num) | |
4961 | continue; | |
e12b3daa | 4962 | pr_err("Conflict, offlining family %#x on '%s'\n", |
a2b97981 DW |
4963 | __le32_to_cpu(family_num), s->disks->devname); |
4964 | } | |
4965 | } | |
4966 | ||
4967 | static struct intel_super * | |
4968 | imsm_thunderdome(struct intel_super **super_list, int len) | |
4969 | { | |
4970 | struct intel_super *super_table[len]; | |
4971 | struct intel_disk *disk_list = NULL; | |
4972 | struct intel_super *champion, *spare; | |
4973 | struct intel_super *s, **del; | |
4974 | int tbl_size = 0; | |
4975 | int conflict; | |
4976 | int i; | |
4977 | ||
4978 | memset(super_table, 0, sizeof(super_table)); | |
4979 | for (s = *super_list; s; s = s->next) | |
4980 | tbl_size = __prep_thunderdome(super_table, tbl_size, s, &disk_list); | |
4981 | ||
4982 | for (i = 0; i < tbl_size; i++) { | |
4983 | struct imsm_disk *d; | |
4984 | struct intel_disk *idisk; | |
4985 | struct imsm_super *mpb = super_table[i]->anchor; | |
4986 | ||
4987 | s = super_table[i]; | |
4988 | d = &s->disks->disk; | |
4989 | ||
4990 | /* 'd' must appear in merged disk list for its | |
4991 | * configuration to be valid | |
4992 | */ | |
4993 | idisk = disk_list_get(d->serial, disk_list); | |
4994 | if (idisk && idisk->owner == i) | |
4995 | s = validate_members(s, disk_list, i); | |
4996 | else | |
4997 | s = NULL; | |
4998 | ||
4999 | if (!s) | |
1ade5cc1 N |
5000 | dprintf("marking family: %#x from %d:%d offline\n", |
5001 | mpb->family_num, | |
a2b97981 DW |
5002 | super_table[i]->disks->major, |
5003 | super_table[i]->disks->minor); | |
5004 | super_table[i] = s; | |
5005 | } | |
5006 | ||
5007 | /* This is where the mdadm implementation differs from the Windows | |
5008 | * driver which has no strict concept of a container. We can only | |
5009 | * assemble one family from a container, so when returning a prodigal | |
5010 | * array member to this system the code will not be able to disambiguate | |
5011 | * the container contents that should be assembled ("foreign" versus | |
5012 | * "local"). It requires user intervention to set the orig_family_num | |
5013 | * to a new value to establish a new container. The Windows driver in | |
5014 | * this situation fixes up the volume name in place and manages the | |
5015 | * foreign array as an independent entity. | |
5016 | */ | |
5017 | s = NULL; | |
5018 | spare = NULL; | |
5019 | conflict = 0; | |
5020 | for (i = 0; i < tbl_size; i++) { | |
5021 | struct intel_super *tbl_ent = super_table[i]; | |
5022 | int is_spare = 0; | |
5023 | ||
5024 | if (!tbl_ent) | |
5025 | continue; | |
5026 | ||
5027 | if (tbl_ent->anchor->num_raid_devs == 0) { | |
5028 | spare = tbl_ent; | |
5029 | is_spare = 1; | |
5030 | } | |
5031 | ||
5032 | if (s && !is_spare) { | |
5033 | show_conflicts(tbl_ent->anchor->family_num, *super_list); | |
5034 | conflict++; | |
5035 | } else if (!s && !is_spare) | |
5036 | s = tbl_ent; | |
5037 | } | |
5038 | ||
5039 | if (!s) | |
5040 | s = spare; | |
5041 | if (!s) { | |
5042 | champion = NULL; | |
5043 | goto out; | |
5044 | } | |
5045 | champion = s; | |
5046 | ||
5047 | if (conflict) | |
7a862a02 | 5048 | pr_err("Chose family %#x on '%s', assemble conflicts to new container with '--update=uuid'\n", |
a2b97981 DW |
5049 | __le32_to_cpu(s->anchor->family_num), s->disks->devname); |
5050 | ||
5051 | /* collect all dl's onto 'champion', and update them to | |
5052 | * champion's version of the status | |
5053 | */ | |
5054 | for (s = *super_list; s; s = s->next) { | |
5055 | struct imsm_super *mpb = champion->anchor; | |
5056 | struct dl *dl = s->disks; | |
5057 | ||
5058 | if (s == champion) | |
5059 | continue; | |
5060 | ||
5d7b407a CA |
5061 | mpb->attributes |= s->anchor->attributes & MPB_ATTRIB_2TB_DISK; |
5062 | ||
a2b97981 DW |
5063 | for (i = 0; i < mpb->num_disks; i++) { |
5064 | struct imsm_disk *disk; | |
5065 | ||
5066 | disk = __serial_to_disk(dl->serial, mpb, &dl->index); | |
5067 | if (disk) { | |
5068 | dl->disk = *disk; | |
5069 | /* only set index on disks that are a member of | |
5070 | * a populated contianer, i.e. one with | |
5071 | * raid_devs | |
5072 | */ | |
5073 | if (is_failed(&dl->disk)) | |
5074 | dl->index = -2; | |
5075 | else if (is_spare(&dl->disk)) | |
5076 | dl->index = -1; | |
5077 | break; | |
5078 | } | |
5079 | } | |
5080 | ||
5081 | if (i >= mpb->num_disks) { | |
5082 | struct intel_disk *idisk; | |
5083 | ||
5084 | idisk = disk_list_get(dl->serial, disk_list); | |
ecf408e9 | 5085 | if (idisk && is_spare(&idisk->disk) && |
a2b97981 DW |
5086 | !is_failed(&idisk->disk) && !is_configured(&idisk->disk)) |
5087 | dl->index = -1; | |
5088 | else { | |
5089 | dl->index = -2; | |
5090 | continue; | |
5091 | } | |
5092 | } | |
5093 | ||
5094 | dl->next = champion->disks; | |
5095 | champion->disks = dl; | |
5096 | s->disks = NULL; | |
5097 | } | |
5098 | ||
5099 | /* delete 'champion' from super_list */ | |
5100 | for (del = super_list; *del; ) { | |
5101 | if (*del == champion) { | |
5102 | *del = (*del)->next; | |
5103 | break; | |
5104 | } else | |
5105 | del = &(*del)->next; | |
5106 | } | |
5107 | champion->next = NULL; | |
5108 | ||
5109 | out: | |
5110 | while (disk_list) { | |
5111 | struct intel_disk *idisk = disk_list; | |
5112 | ||
5113 | disk_list = disk_list->next; | |
5114 | free(idisk); | |
5115 | } | |
5116 | ||
5117 | return champion; | |
5118 | } | |
5119 | ||
9587c373 LM |
5120 | static int |
5121 | get_sra_super_block(int fd, struct intel_super **super_list, char *devname, int *max, int keep_fd); | |
4dd2df09 | 5122 | static int get_super_block(struct intel_super **super_list, char *devnm, char *devname, |
9587c373 | 5123 | int major, int minor, int keep_fd); |
ec50f7b6 LM |
5124 | static int |
5125 | get_devlist_super_block(struct md_list *devlist, struct intel_super **super_list, | |
5126 | int *max, int keep_fd); | |
5127 | ||
cdddbdbc | 5128 | static int load_super_imsm_all(struct supertype *st, int fd, void **sbp, |
ec50f7b6 LM |
5129 | char *devname, struct md_list *devlist, |
5130 | int keep_fd) | |
cdddbdbc | 5131 | { |
a2b97981 DW |
5132 | struct intel_super *super_list = NULL; |
5133 | struct intel_super *super = NULL; | |
a2b97981 | 5134 | int err = 0; |
9587c373 | 5135 | int i = 0; |
dab4a513 | 5136 | |
4389ce73 | 5137 | if (is_fd_valid(fd)) |
9587c373 LM |
5138 | /* 'fd' is an opened container */ |
5139 | err = get_sra_super_block(fd, &super_list, devname, &i, keep_fd); | |
5140 | else | |
ec50f7b6 LM |
5141 | /* get super block from devlist devices */ |
5142 | err = get_devlist_super_block(devlist, &super_list, &i, keep_fd); | |
9587c373 | 5143 | if (err) |
1602d52c | 5144 | goto error; |
a2b97981 DW |
5145 | /* all mpbs enter, maybe one leaves */ |
5146 | super = imsm_thunderdome(&super_list, i); | |
5147 | if (!super) { | |
5148 | err = 1; | |
5149 | goto error; | |
cdddbdbc DW |
5150 | } |
5151 | ||
47ee5a45 DW |
5152 | if (find_missing(super) != 0) { |
5153 | free_imsm(super); | |
a2b97981 DW |
5154 | err = 2; |
5155 | goto error; | |
47ee5a45 | 5156 | } |
8e59f3d8 AK |
5157 | |
5158 | /* load migration record */ | |
2f86fda3 | 5159 | err = load_imsm_migr_rec(super); |
4c965cc9 AK |
5160 | if (err == -1) { |
5161 | /* migration is in progress, | |
5162 | * but migr_rec cannot be loaded, | |
5163 | */ | |
8e59f3d8 AK |
5164 | err = 4; |
5165 | goto error; | |
5166 | } | |
e2f41b2c AK |
5167 | |
5168 | /* Check migration compatibility */ | |
089f9d79 | 5169 | if (err == 0 && check_mpb_migr_compatibility(super) != 0) { |
e7b84f9d | 5170 | pr_err("Unsupported migration detected"); |
e2f41b2c AK |
5171 | if (devname) |
5172 | fprintf(stderr, " on %s\n", devname); | |
5173 | else | |
5174 | fprintf(stderr, " (IMSM).\n"); | |
5175 | ||
5176 | err = 5; | |
5177 | goto error; | |
5178 | } | |
5179 | ||
a2b97981 DW |
5180 | err = 0; |
5181 | ||
5182 | error: | |
5183 | while (super_list) { | |
5184 | struct intel_super *s = super_list; | |
5185 | ||
5186 | super_list = super_list->next; | |
5187 | free_imsm(s); | |
5188 | } | |
9587c373 | 5189 | |
a2b97981 DW |
5190 | if (err) |
5191 | return err; | |
f7e7067b | 5192 | |
cdddbdbc | 5193 | *sbp = super; |
4389ce73 | 5194 | if (is_fd_valid(fd)) |
4dd2df09 | 5195 | strcpy(st->container_devnm, fd2devnm(fd)); |
9587c373 | 5196 | else |
4dd2df09 | 5197 | st->container_devnm[0] = 0; |
a2b97981 | 5198 | if (err == 0 && st->ss == NULL) { |
bf5a934a | 5199 | st->ss = &super_imsm; |
cdddbdbc DW |
5200 | st->minor_version = 0; |
5201 | st->max_devs = IMSM_MAX_DEVICES; | |
5202 | } | |
cdddbdbc DW |
5203 | return 0; |
5204 | } | |
2b959fbf | 5205 | |
ec50f7b6 LM |
5206 | static int |
5207 | get_devlist_super_block(struct md_list *devlist, struct intel_super **super_list, | |
5208 | int *max, int keep_fd) | |
5209 | { | |
5210 | struct md_list *tmpdev; | |
5211 | int err = 0; | |
5212 | int i = 0; | |
9587c373 | 5213 | |
ec50f7b6 LM |
5214 | for (i = 0, tmpdev = devlist; tmpdev; tmpdev = tmpdev->next) { |
5215 | if (tmpdev->used != 1) | |
5216 | continue; | |
5217 | if (tmpdev->container == 1) { | |
ca9de185 | 5218 | int lmax = 0; |
ec50f7b6 | 5219 | int fd = dev_open(tmpdev->devname, O_RDONLY|O_EXCL); |
4389ce73 | 5220 | if (!is_fd_valid(fd)) { |
e7b84f9d | 5221 | pr_err("cannot open device %s: %s\n", |
ec50f7b6 LM |
5222 | tmpdev->devname, strerror(errno)); |
5223 | err = 8; | |
5224 | goto error; | |
5225 | } | |
5226 | err = get_sra_super_block(fd, super_list, | |
5227 | tmpdev->devname, &lmax, | |
5228 | keep_fd); | |
5229 | i += lmax; | |
5230 | close(fd); | |
5231 | if (err) { | |
5232 | err = 7; | |
5233 | goto error; | |
5234 | } | |
5235 | } else { | |
5236 | int major = major(tmpdev->st_rdev); | |
5237 | int minor = minor(tmpdev->st_rdev); | |
5238 | err = get_super_block(super_list, | |
4dd2df09 | 5239 | NULL, |
ec50f7b6 LM |
5240 | tmpdev->devname, |
5241 | major, minor, | |
5242 | keep_fd); | |
5243 | i++; | |
5244 | if (err) { | |
5245 | err = 6; | |
5246 | goto error; | |
5247 | } | |
5248 | } | |
5249 | } | |
5250 | error: | |
5251 | *max = i; | |
5252 | return err; | |
5253 | } | |
9587c373 | 5254 | |
4dd2df09 | 5255 | static int get_super_block(struct intel_super **super_list, char *devnm, char *devname, |
9587c373 LM |
5256 | int major, int minor, int keep_fd) |
5257 | { | |
594dc1b8 | 5258 | struct intel_super *s; |
9587c373 LM |
5259 | char nm[32]; |
5260 | int dfd = -1; | |
9587c373 LM |
5261 | int err = 0; |
5262 | int retry; | |
5263 | ||
5264 | s = alloc_super(); | |
5265 | if (!s) { | |
5266 | err = 1; | |
5267 | goto error; | |
5268 | } | |
5269 | ||
5270 | sprintf(nm, "%d:%d", major, minor); | |
5271 | dfd = dev_open(nm, O_RDWR); | |
4389ce73 | 5272 | if (!is_fd_valid(dfd)) { |
9587c373 LM |
5273 | err = 2; |
5274 | goto error; | |
5275 | } | |
5276 | ||
aec01630 JS |
5277 | if (!get_dev_sector_size(dfd, NULL, &s->sector_size)) { |
5278 | err = 2; | |
5279 | goto error; | |
5280 | } | |
cb8f6859 | 5281 | find_intel_hba_capability(dfd, s, devname); |
9587c373 LM |
5282 | err = load_and_parse_mpb(dfd, s, NULL, keep_fd); |
5283 | ||
5284 | /* retry the load if we might have raced against mdmon */ | |
4dd2df09 | 5285 | if (err == 3 && devnm && mdmon_running(devnm)) |
9587c373 | 5286 | for (retry = 0; retry < 3; retry++) { |
239b3cc0 | 5287 | sleep_for(0, MSEC_TO_NSEC(3), true); |
9587c373 LM |
5288 | err = load_and_parse_mpb(dfd, s, NULL, keep_fd); |
5289 | if (err != 3) | |
5290 | break; | |
5291 | } | |
5292 | error: | |
5293 | if (!err) { | |
5294 | s->next = *super_list; | |
5295 | *super_list = s; | |
5296 | } else { | |
5297 | if (s) | |
8d67477f | 5298 | free_imsm(s); |
4389ce73 | 5299 | close_fd(&dfd); |
9587c373 | 5300 | } |
4389ce73 MT |
5301 | if (!keep_fd) |
5302 | close_fd(&dfd); | |
9587c373 LM |
5303 | return err; |
5304 | ||
5305 | } | |
5306 | ||
5307 | static int | |
5308 | get_sra_super_block(int fd, struct intel_super **super_list, char *devname, int *max, int keep_fd) | |
5309 | { | |
5310 | struct mdinfo *sra; | |
4dd2df09 | 5311 | char *devnm; |
9587c373 LM |
5312 | struct mdinfo *sd; |
5313 | int err = 0; | |
5314 | int i = 0; | |
4dd2df09 | 5315 | sra = sysfs_read(fd, NULL, GET_LEVEL|GET_VERSION|GET_DEVS|GET_STATE); |
9587c373 LM |
5316 | if (!sra) |
5317 | return 1; | |
5318 | ||
5319 | if (sra->array.major_version != -1 || | |
5320 | sra->array.minor_version != -2 || | |
5321 | strcmp(sra->text_version, "imsm") != 0) { | |
5322 | err = 1; | |
5323 | goto error; | |
5324 | } | |
5325 | /* load all mpbs */ | |
4dd2df09 | 5326 | devnm = fd2devnm(fd); |
9587c373 | 5327 | for (sd = sra->devs, i = 0; sd; sd = sd->next, i++) { |
4dd2df09 | 5328 | if (get_super_block(super_list, devnm, devname, |
9587c373 LM |
5329 | sd->disk.major, sd->disk.minor, keep_fd) != 0) { |
5330 | err = 7; | |
5331 | goto error; | |
5332 | } | |
5333 | } | |
5334 | error: | |
5335 | sysfs_free(sra); | |
5336 | *max = i; | |
5337 | return err; | |
5338 | } | |
5339 | ||
2b959fbf N |
5340 | static int load_container_imsm(struct supertype *st, int fd, char *devname) |
5341 | { | |
ec50f7b6 | 5342 | return load_super_imsm_all(st, fd, &st->sb, devname, NULL, 1); |
2b959fbf | 5343 | } |
cdddbdbc DW |
5344 | |
5345 | static int load_super_imsm(struct supertype *st, int fd, char *devname) | |
5346 | { | |
5347 | struct intel_super *super; | |
5348 | int rv; | |
8a3544f8 | 5349 | int retry; |
cdddbdbc | 5350 | |
357ac106 | 5351 | if (test_partition(fd)) |
691c6ee1 N |
5352 | /* IMSM not allowed on partitions */ |
5353 | return 1; | |
5354 | ||
37424f13 DW |
5355 | free_super_imsm(st); |
5356 | ||
49133e57 | 5357 | super = alloc_super(); |
8d67477f TM |
5358 | if (!super) |
5359 | return 1; | |
3a85bf0e MG |
5360 | |
5361 | if (!get_dev_sector_size(fd, NULL, &super->sector_size)) { | |
5362 | free_imsm(super); | |
5363 | return 1; | |
5364 | } | |
ea2bc72b LM |
5365 | /* Load hba and capabilities if they exist. |
5366 | * But do not preclude loading metadata in case capabilities or hba are | |
5367 | * non-compliant and ignore_hw_compat is set. | |
5368 | */ | |
d424212e | 5369 | rv = find_intel_hba_capability(fd, super, devname); |
f2f5c343 | 5370 | /* no orom/efi or non-intel hba of the disk */ |
089f9d79 | 5371 | if (rv != 0 && st->ignore_hw_compat == 0) { |
f2f5c343 | 5372 | if (devname) |
e7b84f9d | 5373 | pr_err("No OROM/EFI properties for %s\n", devname); |
f2f5c343 LM |
5374 | free_imsm(super); |
5375 | return 2; | |
5376 | } | |
a2b97981 | 5377 | rv = load_and_parse_mpb(fd, super, devname, 0); |
cdddbdbc | 5378 | |
8a3544f8 AP |
5379 | /* retry the load if we might have raced against mdmon */ |
5380 | if (rv == 3) { | |
f96b1302 AP |
5381 | struct mdstat_ent *mdstat = NULL; |
5382 | char *name = fd2kname(fd); | |
5383 | ||
5384 | if (name) | |
5385 | mdstat = mdstat_by_component(name); | |
8a3544f8 AP |
5386 | |
5387 | if (mdstat && mdmon_running(mdstat->devnm) && getpid() != mdmon_pid(mdstat->devnm)) { | |
5388 | for (retry = 0; retry < 3; retry++) { | |
239b3cc0 | 5389 | sleep_for(0, MSEC_TO_NSEC(3), true); |
8a3544f8 AP |
5390 | rv = load_and_parse_mpb(fd, super, devname, 0); |
5391 | if (rv != 3) | |
5392 | break; | |
5393 | } | |
5394 | } | |
5395 | ||
5396 | free_mdstat(mdstat); | |
5397 | } | |
5398 | ||
cdddbdbc DW |
5399 | if (rv) { |
5400 | if (devname) | |
7a862a02 | 5401 | pr_err("Failed to load all information sections on %s\n", devname); |
cdddbdbc DW |
5402 | free_imsm(super); |
5403 | return rv; | |
5404 | } | |
5405 | ||
5406 | st->sb = super; | |
5407 | if (st->ss == NULL) { | |
5408 | st->ss = &super_imsm; | |
5409 | st->minor_version = 0; | |
5410 | st->max_devs = IMSM_MAX_DEVICES; | |
5411 | } | |
8e59f3d8 AK |
5412 | |
5413 | /* load migration record */ | |
2f86fda3 | 5414 | if (load_imsm_migr_rec(super) == 0) { |
2e062e82 AK |
5415 | /* Check for unsupported migration features */ |
5416 | if (check_mpb_migr_compatibility(super) != 0) { | |
e7b84f9d | 5417 | pr_err("Unsupported migration detected"); |
2e062e82 AK |
5418 | if (devname) |
5419 | fprintf(stderr, " on %s\n", devname); | |
5420 | else | |
5421 | fprintf(stderr, " (IMSM).\n"); | |
5422 | return 3; | |
5423 | } | |
e2f41b2c AK |
5424 | } |
5425 | ||
cdddbdbc DW |
5426 | return 0; |
5427 | } | |
5428 | ||
ef6ffade DW |
5429 | static __u16 info_to_blocks_per_strip(mdu_array_info_t *info) |
5430 | { | |
5431 | if (info->level == 1) | |
5432 | return 128; | |
5433 | return info->chunk_size >> 9; | |
5434 | } | |
5435 | ||
5551b113 CA |
5436 | static unsigned long long info_to_blocks_per_member(mdu_array_info_t *info, |
5437 | unsigned long long size) | |
fcfd9599 | 5438 | { |
4025c288 | 5439 | if (info->level == 1) |
5551b113 | 5440 | return size * 2; |
4025c288 | 5441 | else |
5551b113 | 5442 | return (size * 2) & ~(info_to_blocks_per_strip(info) - 1); |
fcfd9599 DW |
5443 | } |
5444 | ||
4d1313e9 DW |
5445 | static void imsm_update_version_info(struct intel_super *super) |
5446 | { | |
5447 | /* update the version and attributes */ | |
5448 | struct imsm_super *mpb = super->anchor; | |
5449 | char *version; | |
5450 | struct imsm_dev *dev; | |
5451 | struct imsm_map *map; | |
5452 | int i; | |
5453 | ||
5454 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
5455 | dev = get_imsm_dev(super, i); | |
238c0a71 | 5456 | map = get_imsm_map(dev, MAP_0); |
4d1313e9 DW |
5457 | if (__le32_to_cpu(dev->size_high) > 0) |
5458 | mpb->attributes |= MPB_ATTRIB_2TB; | |
5459 | ||
5460 | /* FIXME detect when an array spans a port multiplier */ | |
5461 | #if 0 | |
5462 | mpb->attributes |= MPB_ATTRIB_PM; | |
5463 | #endif | |
5464 | ||
5465 | if (mpb->num_raid_devs > 1 || | |
5466 | mpb->attributes != MPB_ATTRIB_CHECKSUM_VERIFY) { | |
5467 | version = MPB_VERSION_ATTRIBS; | |
5468 | switch (get_imsm_raid_level(map)) { | |
5469 | case 0: mpb->attributes |= MPB_ATTRIB_RAID0; break; | |
5470 | case 1: mpb->attributes |= MPB_ATTRIB_RAID1; break; | |
5471 | case 10: mpb->attributes |= MPB_ATTRIB_RAID10; break; | |
5472 | case 5: mpb->attributes |= MPB_ATTRIB_RAID5; break; | |
5473 | } | |
5474 | } else { | |
5475 | if (map->num_members >= 5) | |
5476 | version = MPB_VERSION_5OR6_DISK_ARRAY; | |
5477 | else if (dev->status == DEV_CLONE_N_GO) | |
5478 | version = MPB_VERSION_CNG; | |
5479 | else if (get_imsm_raid_level(map) == 5) | |
5480 | version = MPB_VERSION_RAID5; | |
5481 | else if (map->num_members >= 3) | |
5482 | version = MPB_VERSION_3OR4_DISK_ARRAY; | |
5483 | else if (get_imsm_raid_level(map) == 1) | |
5484 | version = MPB_VERSION_RAID1; | |
5485 | else | |
5486 | version = MPB_VERSION_RAID0; | |
5487 | } | |
5488 | strcpy(((char *) mpb->sig) + strlen(MPB_SIGNATURE), version); | |
5489 | } | |
5490 | } | |
5491 | ||
e2eb503b MT |
5492 | /** |
5493 | * imsm_check_name() - check imsm naming criteria. | |
5494 | * @super: &intel_super pointer, not NULL. | |
5495 | * @name: name to check. | |
5496 | * @verbose: verbose level. | |
5497 | * | |
5498 | * Name must be no longer than &MAX_RAID_SERIAL_LEN and must be unique across volumes. | |
5499 | * | |
5500 | * Returns: &true if @name matches, &false otherwise. | |
5501 | */ | |
5502 | static bool imsm_is_name_allowed(struct intel_super *super, const char * const name, | |
5503 | const int verbose) | |
aa534678 DW |
5504 | { |
5505 | struct imsm_super *mpb = super->anchor; | |
aa534678 DW |
5506 | int i; |
5507 | ||
e2eb503b MT |
5508 | if (is_string_lq(name, MAX_RAID_SERIAL_LEN + 1) == false) { |
5509 | pr_vrb("imsm: Name \"%s\" is too long\n", name); | |
5510 | return false; | |
9bd99a90 RS |
5511 | } |
5512 | ||
aa534678 DW |
5513 | for (i = 0; i < mpb->num_raid_devs; i++) { |
5514 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
5515 | ||
5516 | if (strncmp((char *) dev->volume, name, MAX_RAID_SERIAL_LEN) == 0) { | |
e2eb503b MT |
5517 | pr_vrb("imsm: Name \"%s\" already exists\n", name); |
5518 | return false; | |
aa534678 DW |
5519 | } |
5520 | } | |
5521 | ||
e2eb503b | 5522 | return true; |
aa534678 DW |
5523 | } |
5524 | ||
8b353278 | 5525 | static int init_super_imsm_volume(struct supertype *st, mdu_array_info_t *info, |
5308f117 | 5526 | struct shape *s, char *name, |
83cd1e97 N |
5527 | char *homehost, int *uuid, |
5528 | long long data_offset) | |
cdddbdbc | 5529 | { |
c2c087e6 DW |
5530 | /* We are creating a volume inside a pre-existing container. |
5531 | * so st->sb is already set. | |
5532 | */ | |
5533 | struct intel_super *super = st->sb; | |
f36a9ecd | 5534 | unsigned int sector_size = super->sector_size; |
949c47a0 | 5535 | struct imsm_super *mpb = super->anchor; |
ba2de7ba | 5536 | struct intel_dev *dv; |
c2c087e6 DW |
5537 | struct imsm_dev *dev; |
5538 | struct imsm_vol *vol; | |
5539 | struct imsm_map *map; | |
5540 | int idx = mpb->num_raid_devs; | |
5541 | int i; | |
760365f9 | 5542 | int namelen; |
c2c087e6 | 5543 | unsigned long long array_blocks; |
2c092cad | 5544 | size_t size_old, size_new; |
b53bfba6 TM |
5545 | unsigned int data_disks; |
5546 | unsigned long long size_per_member; | |
cdddbdbc | 5547 | |
88c32bb1 | 5548 | if (super->orom && mpb->num_raid_devs >= super->orom->vpa) { |
7a862a02 | 5549 | pr_err("This imsm-container already has the maximum of %d volumes\n", super->orom->vpa); |
c2c087e6 DW |
5550 | return 0; |
5551 | } | |
5552 | ||
2c092cad DW |
5553 | /* ensure the mpb is large enough for the new data */ |
5554 | size_old = __le32_to_cpu(mpb->mpb_size); | |
5555 | size_new = disks_to_mpb_size(info->nr_disks); | |
5556 | if (size_new > size_old) { | |
5557 | void *mpb_new; | |
f36a9ecd | 5558 | size_t size_round = ROUND_UP(size_new, sector_size); |
2c092cad | 5559 | |
f36a9ecd | 5560 | if (posix_memalign(&mpb_new, sector_size, size_round) != 0) { |
e7b84f9d | 5561 | pr_err("could not allocate new mpb\n"); |
2c092cad DW |
5562 | return 0; |
5563 | } | |
85337573 AO |
5564 | if (posix_memalign(&super->migr_rec_buf, MAX_SECTOR_SIZE, |
5565 | MIGR_REC_BUF_SECTORS* | |
5566 | MAX_SECTOR_SIZE) != 0) { | |
1ade5cc1 | 5567 | pr_err("could not allocate migr_rec buffer\n"); |
8e59f3d8 AK |
5568 | free(super->buf); |
5569 | free(super); | |
ea944c8f | 5570 | free(mpb_new); |
8e59f3d8 AK |
5571 | return 0; |
5572 | } | |
2c092cad DW |
5573 | memcpy(mpb_new, mpb, size_old); |
5574 | free(mpb); | |
5575 | mpb = mpb_new; | |
949c47a0 | 5576 | super->anchor = mpb_new; |
2c092cad DW |
5577 | mpb->mpb_size = __cpu_to_le32(size_new); |
5578 | memset(mpb_new + size_old, 0, size_round - size_old); | |
bbab0940 | 5579 | super->len = size_round; |
2c092cad | 5580 | } |
bf5a934a | 5581 | super->current_vol = idx; |
3960e579 DW |
5582 | |
5583 | /* handle 'failed_disks' by either: | |
5584 | * a) create dummy disk entries in the table if this the first | |
5585 | * volume in the array. We add them here as this is the only | |
5586 | * opportunity to add them. add_to_super_imsm_volume() | |
5587 | * handles the non-failed disks and continues incrementing | |
5588 | * mpb->num_disks. | |
5589 | * b) validate that 'failed_disks' matches the current number | |
5590 | * of missing disks if the container is populated | |
d23fe947 | 5591 | */ |
3960e579 | 5592 | if (super->current_vol == 0) { |
d23fe947 | 5593 | mpb->num_disks = 0; |
3960e579 DW |
5594 | for (i = 0; i < info->failed_disks; i++) { |
5595 | struct imsm_disk *disk; | |
5596 | ||
5597 | mpb->num_disks++; | |
5598 | disk = __get_imsm_disk(mpb, i); | |
5599 | disk->status = CONFIGURED_DISK | FAILED_DISK; | |
5600 | disk->scsi_id = __cpu_to_le32(~(__u32)0); | |
5601 | snprintf((char *) disk->serial, MAX_RAID_SERIAL_LEN, | |
5b975129 | 5602 | "missing:%d", (__u8)i); |
3960e579 DW |
5603 | } |
5604 | find_missing(super); | |
5605 | } else { | |
5606 | int missing = 0; | |
5607 | struct dl *d; | |
5608 | ||
5609 | for (d = super->missing; d; d = d->next) | |
5610 | missing++; | |
5611 | if (info->failed_disks > missing) { | |
e7b84f9d | 5612 | pr_err("unable to add 'missing' disk to container\n"); |
3960e579 DW |
5613 | return 0; |
5614 | } | |
5615 | } | |
5a038140 | 5616 | |
e2eb503b | 5617 | if (imsm_is_name_allowed(super, name, 1) == false) |
aa534678 | 5618 | return 0; |
e2eb503b | 5619 | |
503975b9 N |
5620 | dv = xmalloc(sizeof(*dv)); |
5621 | dev = xcalloc(1, sizeof(*dev) + sizeof(__u32) * (info->raid_disks - 1)); | |
760365f9 JS |
5622 | /* |
5623 | * Explicitly allow truncating to not confuse gcc's | |
5624 | * -Werror=stringop-truncation | |
5625 | */ | |
5626 | namelen = min((int) strlen(name), MAX_RAID_SERIAL_LEN); | |
5627 | memcpy(dev->volume, name, namelen); | |
e03640bd | 5628 | array_blocks = calc_array_size(info->level, info->raid_disks, |
03bcbc65 | 5629 | info->layout, info->chunk_size, |
b53bfba6 TM |
5630 | s->size * BLOCKS_PER_KB); |
5631 | data_disks = get_data_disks(info->level, info->layout, | |
5632 | info->raid_disks); | |
5633 | array_blocks = round_size_to_mb(array_blocks, data_disks); | |
5634 | size_per_member = array_blocks / data_disks; | |
979d38be | 5635 | |
fcc2c9da | 5636 | set_imsm_dev_size(dev, array_blocks); |
1a2487c2 | 5637 | dev->status = (DEV_READ_COALESCING | DEV_WRITE_COALESCING); |
c2c087e6 DW |
5638 | vol = &dev->vol; |
5639 | vol->migr_state = 0; | |
1484e727 | 5640 | set_migr_type(dev, MIGR_INIT); |
3960e579 | 5641 | vol->dirty = !info->state; |
4036e7ee | 5642 | set_vol_curr_migr_unit(dev, 0); |
238c0a71 | 5643 | map = get_imsm_map(dev, MAP_0); |
5551b113 | 5644 | set_pba_of_lba0(map, super->create_offset); |
ef6ffade | 5645 | map->blocks_per_strip = __cpu_to_le16(info_to_blocks_per_strip(info)); |
0556e1a2 | 5646 | map->failed_disk_num = ~0; |
bf4442ab | 5647 | if (info->level > 0) |
fffaf1ff N |
5648 | map->map_state = (info->state ? IMSM_T_STATE_NORMAL |
5649 | : IMSM_T_STATE_UNINITIALIZED); | |
bf4442ab AK |
5650 | else |
5651 | map->map_state = info->failed_disks ? IMSM_T_STATE_FAILED : | |
5652 | IMSM_T_STATE_NORMAL; | |
252d23c0 | 5653 | map->ddf = 1; |
ef6ffade DW |
5654 | |
5655 | if (info->level == 1 && info->raid_disks > 2) { | |
38950822 AW |
5656 | free(dev); |
5657 | free(dv); | |
7a862a02 | 5658 | pr_err("imsm does not support more than 2 disksin a raid1 volume\n"); |
ef6ffade DW |
5659 | return 0; |
5660 | } | |
81062a36 DW |
5661 | |
5662 | map->raid_level = info->level; | |
1c275381 | 5663 | if (info->level == 10) |
c2c087e6 | 5664 | map->raid_level = 1; |
1c275381 | 5665 | set_num_domains(map); |
ef6ffade | 5666 | |
44490938 MD |
5667 | size_per_member += NUM_BLOCKS_DIRTY_STRIPE_REGION; |
5668 | set_blocks_per_member(map, info_to_blocks_per_member(info, | |
5669 | size_per_member / | |
5670 | BLOCKS_PER_KB)); | |
5671 | ||
c2c087e6 | 5672 | map->num_members = info->raid_disks; |
1c275381 | 5673 | update_num_data_stripes(map, array_blocks); |
c2c087e6 DW |
5674 | for (i = 0; i < map->num_members; i++) { |
5675 | /* initialized in add_to_super */ | |
4eb26970 | 5676 | set_imsm_ord_tbl_ent(map, i, IMSM_ORD_REBUILD); |
c2c087e6 | 5677 | } |
949c47a0 | 5678 | mpb->num_raid_devs++; |
2a24dc1b PB |
5679 | mpb->num_raid_devs_created++; |
5680 | dev->my_vol_raid_dev_num = mpb->num_raid_devs_created; | |
ba2de7ba | 5681 | |
b7580566 | 5682 | if (s->consistency_policy <= CONSISTENCY_POLICY_RESYNC) { |
c2462068 | 5683 | dev->rwh_policy = RWH_MULTIPLE_OFF; |
2432ce9b | 5684 | } else if (s->consistency_policy == CONSISTENCY_POLICY_PPL) { |
c2462068 | 5685 | dev->rwh_policy = RWH_MULTIPLE_DISTRIBUTED; |
2432ce9b AP |
5686 | } else { |
5687 | free(dev); | |
5688 | free(dv); | |
5689 | pr_err("imsm does not support consistency policy %s\n", | |
5f21d674 | 5690 | map_num_s(consistency_policies, s->consistency_policy)); |
2432ce9b AP |
5691 | return 0; |
5692 | } | |
5693 | ||
ba2de7ba DW |
5694 | dv->dev = dev; |
5695 | dv->index = super->current_vol; | |
5696 | dv->next = super->devlist; | |
5697 | super->devlist = dv; | |
c2c087e6 | 5698 | |
4d1313e9 DW |
5699 | imsm_update_version_info(super); |
5700 | ||
c2c087e6 | 5701 | return 1; |
cdddbdbc DW |
5702 | } |
5703 | ||
bf5a934a | 5704 | static int init_super_imsm(struct supertype *st, mdu_array_info_t *info, |
5308f117 | 5705 | struct shape *s, char *name, |
83cd1e97 N |
5706 | char *homehost, int *uuid, |
5707 | unsigned long long data_offset) | |
bf5a934a DW |
5708 | { |
5709 | /* This is primarily called by Create when creating a new array. | |
5710 | * We will then get add_to_super called for each component, and then | |
5711 | * write_init_super called to write it out to each device. | |
5712 | * For IMSM, Create can create on fresh devices or on a pre-existing | |
5713 | * array. | |
5714 | * To create on a pre-existing array a different method will be called. | |
5715 | * This one is just for fresh drives. | |
5716 | */ | |
5717 | struct intel_super *super; | |
5718 | struct imsm_super *mpb; | |
5719 | size_t mpb_size; | |
4d1313e9 | 5720 | char *version; |
bf5a934a | 5721 | |
83cd1e97 | 5722 | if (data_offset != INVALID_SECTORS) { |
ed503f89 | 5723 | pr_err("data-offset not supported by imsm\n"); |
83cd1e97 N |
5724 | return 0; |
5725 | } | |
5726 | ||
bf5a934a | 5727 | if (st->sb) |
5308f117 | 5728 | return init_super_imsm_volume(st, info, s, name, homehost, uuid, |
83cd1e97 | 5729 | data_offset); |
e683ca88 DW |
5730 | |
5731 | if (info) | |
5732 | mpb_size = disks_to_mpb_size(info->nr_disks); | |
5733 | else | |
f36a9ecd | 5734 | mpb_size = MAX_SECTOR_SIZE; |
bf5a934a | 5735 | |
49133e57 | 5736 | super = alloc_super(); |
f36a9ecd PB |
5737 | if (super && |
5738 | posix_memalign(&super->buf, MAX_SECTOR_SIZE, mpb_size) != 0) { | |
8d67477f | 5739 | free_imsm(super); |
e683ca88 DW |
5740 | super = NULL; |
5741 | } | |
5742 | if (!super) { | |
1ade5cc1 | 5743 | pr_err("could not allocate superblock\n"); |
bf5a934a DW |
5744 | return 0; |
5745 | } | |
de44e46f PB |
5746 | if (posix_memalign(&super->migr_rec_buf, MAX_SECTOR_SIZE, |
5747 | MIGR_REC_BUF_SECTORS*MAX_SECTOR_SIZE) != 0) { | |
1ade5cc1 | 5748 | pr_err("could not allocate migr_rec buffer\n"); |
8e59f3d8 | 5749 | free(super->buf); |
8d67477f | 5750 | free_imsm(super); |
8e59f3d8 AK |
5751 | return 0; |
5752 | } | |
e683ca88 | 5753 | memset(super->buf, 0, mpb_size); |
ef649044 | 5754 | mpb = super->buf; |
e683ca88 DW |
5755 | mpb->mpb_size = __cpu_to_le32(mpb_size); |
5756 | st->sb = super; | |
5757 | ||
5758 | if (info == NULL) { | |
5759 | /* zeroing superblock */ | |
5760 | return 0; | |
5761 | } | |
bf5a934a | 5762 | |
4d1313e9 DW |
5763 | mpb->attributes = MPB_ATTRIB_CHECKSUM_VERIFY; |
5764 | ||
5765 | version = (char *) mpb->sig; | |
5766 | strcpy(version, MPB_SIGNATURE); | |
5767 | version += strlen(MPB_SIGNATURE); | |
5768 | strcpy(version, MPB_VERSION_RAID0); | |
bf5a934a | 5769 | |
bf5a934a DW |
5770 | return 1; |
5771 | } | |
5772 | ||
f2cc4f7d AO |
5773 | static int drive_validate_sector_size(struct intel_super *super, struct dl *dl) |
5774 | { | |
5775 | unsigned int member_sector_size; | |
5776 | ||
4389ce73 | 5777 | if (!is_fd_valid(dl->fd)) { |
f2cc4f7d AO |
5778 | pr_err("Invalid file descriptor for %s\n", dl->devname); |
5779 | return 0; | |
5780 | } | |
5781 | ||
5782 | if (!get_dev_sector_size(dl->fd, dl->devname, &member_sector_size)) | |
5783 | return 0; | |
5784 | if (member_sector_size != super->sector_size) | |
5785 | return 0; | |
5786 | return 1; | |
5787 | } | |
5788 | ||
f20c3968 | 5789 | static int add_to_super_imsm_volume(struct supertype *st, mdu_disk_info_t *dk, |
bf5a934a DW |
5790 | int fd, char *devname) |
5791 | { | |
5792 | struct intel_super *super = st->sb; | |
d23fe947 | 5793 | struct imsm_super *mpb = super->anchor; |
3960e579 | 5794 | struct imsm_disk *_disk; |
bf5a934a DW |
5795 | struct imsm_dev *dev; |
5796 | struct imsm_map *map; | |
3960e579 | 5797 | struct dl *dl, *df; |
4eb26970 | 5798 | int slot; |
9a7df595 MT |
5799 | int autolayout = 0; |
5800 | ||
5801 | if (!is_fd_valid(fd)) | |
5802 | autolayout = 1; | |
bf5a934a | 5803 | |
949c47a0 | 5804 | dev = get_imsm_dev(super, super->current_vol); |
238c0a71 | 5805 | map = get_imsm_map(dev, MAP_0); |
bf5a934a | 5806 | |
208933a7 | 5807 | if (! (dk->state & (1<<MD_DISK_SYNC))) { |
e7b84f9d | 5808 | pr_err("%s: Cannot add spare devices to IMSM volume\n", |
208933a7 N |
5809 | devname); |
5810 | return 1; | |
5811 | } | |
5812 | ||
9a7df595 MT |
5813 | for (dl = super->disks; dl ; dl = dl->next) { |
5814 | if (autolayout) { | |
efb30e7f DW |
5815 | if (dl->raiddisk == dk->raid_disk) |
5816 | break; | |
9a7df595 MT |
5817 | } else if (dl->major == dk->major && dl->minor == dk->minor) |
5818 | break; | |
efb30e7f | 5819 | } |
d23fe947 | 5820 | |
208933a7 | 5821 | if (!dl) { |
9a7df595 MT |
5822 | if (!autolayout) |
5823 | pr_err("%s is not a member of the same container.\n", | |
5824 | devname); | |
f20c3968 | 5825 | return 1; |
208933a7 | 5826 | } |
bf5a934a | 5827 | |
9a7df595 MT |
5828 | if (!autolayout && super->current_vol > 0) { |
5829 | int _slot = get_disk_slot_in_dev(super, 0, dl->index); | |
5830 | ||
5831 | if (_slot != dk->raid_disk) { | |
5832 | pr_err("Member %s is in %d slot for the first volume, but is in %d slot for a new volume.\n", | |
5833 | dl->devname, _slot, dk->raid_disk); | |
5834 | pr_err("Raid members are in different order than for the first volume, aborting.\n"); | |
5835 | return 1; | |
5836 | } | |
5837 | } | |
5838 | ||
59632db9 MZ |
5839 | if (mpb->num_disks == 0) |
5840 | if (!get_dev_sector_size(dl->fd, dl->devname, | |
5841 | &super->sector_size)) | |
5842 | return 1; | |
5843 | ||
f2cc4f7d AO |
5844 | if (!drive_validate_sector_size(super, dl)) { |
5845 | pr_err("Combining drives of different sector size in one volume is not allowed\n"); | |
5846 | return 1; | |
5847 | } | |
5848 | ||
d23fe947 DW |
5849 | /* add a pristine spare to the metadata */ |
5850 | if (dl->index < 0) { | |
5851 | dl->index = super->anchor->num_disks; | |
5852 | super->anchor->num_disks++; | |
5853 | } | |
4eb26970 DW |
5854 | /* Check the device has not already been added */ |
5855 | slot = get_imsm_disk_slot(map, dl->index); | |
5856 | if (slot >= 0 && | |
238c0a71 | 5857 | (get_imsm_ord_tbl_ent(dev, slot, MAP_X) & IMSM_ORD_REBUILD) == 0) { |
e7b84f9d | 5858 | pr_err("%s has been included in this array twice\n", |
4eb26970 DW |
5859 | devname); |
5860 | return 1; | |
5861 | } | |
656b6b5a | 5862 | set_imsm_ord_tbl_ent(map, dk->raid_disk, dl->index); |
ee5aad5a | 5863 | dl->disk.status = CONFIGURED_DISK; |
d23fe947 | 5864 | |
3960e579 DW |
5865 | /* update size of 'missing' disks to be at least as large as the |
5866 | * largest acitve member (we only have dummy missing disks when | |
5867 | * creating the first volume) | |
5868 | */ | |
5869 | if (super->current_vol == 0) { | |
5870 | for (df = super->missing; df; df = df->next) { | |
5551b113 CA |
5871 | if (total_blocks(&dl->disk) > total_blocks(&df->disk)) |
5872 | set_total_blocks(&df->disk, total_blocks(&dl->disk)); | |
3960e579 DW |
5873 | _disk = __get_imsm_disk(mpb, df->index); |
5874 | *_disk = df->disk; | |
5875 | } | |
5876 | } | |
5877 | ||
5878 | /* refresh unset/failed slots to point to valid 'missing' entries */ | |
5879 | for (df = super->missing; df; df = df->next) | |
5880 | for (slot = 0; slot < mpb->num_disks; slot++) { | |
238c0a71 | 5881 | __u32 ord = get_imsm_ord_tbl_ent(dev, slot, MAP_X); |
3960e579 DW |
5882 | |
5883 | if ((ord & IMSM_ORD_REBUILD) == 0) | |
5884 | continue; | |
5885 | set_imsm_ord_tbl_ent(map, slot, df->index | IMSM_ORD_REBUILD); | |
1ace8403 | 5886 | if (is_gen_migration(dev)) { |
238c0a71 AK |
5887 | struct imsm_map *map2 = get_imsm_map(dev, |
5888 | MAP_1); | |
0a108d63 | 5889 | int slot2 = get_imsm_disk_slot(map2, df->index); |
089f9d79 | 5890 | if (slot2 < map2->num_members && slot2 >= 0) { |
1ace8403 | 5891 | __u32 ord2 = get_imsm_ord_tbl_ent(dev, |
238c0a71 AK |
5892 | slot2, |
5893 | MAP_1); | |
1ace8403 AK |
5894 | if ((unsigned)df->index == |
5895 | ord_to_idx(ord2)) | |
5896 | set_imsm_ord_tbl_ent(map2, | |
0a108d63 | 5897 | slot2, |
1ace8403 AK |
5898 | df->index | |
5899 | IMSM_ORD_REBUILD); | |
5900 | } | |
5901 | } | |
3960e579 DW |
5902 | dprintf("set slot:%d to missing disk:%d\n", slot, df->index); |
5903 | break; | |
5904 | } | |
5905 | ||
d23fe947 DW |
5906 | /* if we are creating the first raid device update the family number */ |
5907 | if (super->current_vol == 0) { | |
5908 | __u32 sum; | |
5909 | struct imsm_dev *_dev = __get_imsm_dev(mpb, 0); | |
d23fe947 | 5910 | |
3960e579 | 5911 | _disk = __get_imsm_disk(mpb, dl->index); |
756a15f3 | 5912 | if (!_disk) { |
e7b84f9d | 5913 | pr_err("BUG mpb setup error\n"); |
791b666a AW |
5914 | return 1; |
5915 | } | |
d23fe947 DW |
5916 | *_dev = *dev; |
5917 | *_disk = dl->disk; | |
148acb7b DW |
5918 | sum = random32(); |
5919 | sum += __gen_imsm_checksum(mpb); | |
d23fe947 | 5920 | mpb->family_num = __cpu_to_le32(sum); |
148acb7b | 5921 | mpb->orig_family_num = mpb->family_num; |
e48aed3c | 5922 | mpb->creation_time = __cpu_to_le64((__u64)time(NULL)); |
d23fe947 | 5923 | } |
ca0748fa | 5924 | super->current_disk = dl; |
f20c3968 | 5925 | return 0; |
bf5a934a DW |
5926 | } |
5927 | ||
a8619d23 AK |
5928 | /* mark_spare() |
5929 | * Function marks disk as spare and restores disk serial | |
5930 | * in case it was previously marked as failed by takeover operation | |
5931 | * reruns: | |
5932 | * -1 : critical error | |
5933 | * 0 : disk is marked as spare but serial is not set | |
5934 | * 1 : success | |
5935 | */ | |
5936 | int mark_spare(struct dl *disk) | |
5937 | { | |
5938 | __u8 serial[MAX_RAID_SERIAL_LEN]; | |
5939 | int ret_val = -1; | |
5940 | ||
5941 | if (!disk) | |
5942 | return ret_val; | |
5943 | ||
5944 | ret_val = 0; | |
6da53c0e | 5945 | if (!imsm_read_serial(disk->fd, NULL, serial, MAX_RAID_SERIAL_LEN)) { |
a8619d23 AK |
5946 | /* Restore disk serial number, because takeover marks disk |
5947 | * as failed and adds to serial ':0' before it becomes | |
5948 | * a spare disk. | |
5949 | */ | |
5950 | serialcpy(disk->serial, serial); | |
5951 | serialcpy(disk->disk.serial, serial); | |
5952 | ret_val = 1; | |
5953 | } | |
5954 | disk->disk.status = SPARE_DISK; | |
5955 | disk->index = -1; | |
5956 | ||
5957 | return ret_val; | |
5958 | } | |
88654014 | 5959 | |
12724c01 TM |
5960 | |
5961 | static int write_super_imsm_spare(struct intel_super *super, struct dl *d); | |
5962 | ||
f20c3968 | 5963 | static int add_to_super_imsm(struct supertype *st, mdu_disk_info_t *dk, |
72ca9bcf N |
5964 | int fd, char *devname, |
5965 | unsigned long long data_offset) | |
cdddbdbc | 5966 | { |
c2c087e6 | 5967 | struct intel_super *super = st->sb; |
c2c087e6 DW |
5968 | struct dl *dd; |
5969 | unsigned long long size; | |
fa7bb6f8 | 5970 | unsigned int member_sector_size; |
f2f27e63 | 5971 | __u32 id; |
c2c087e6 DW |
5972 | int rv; |
5973 | struct stat stb; | |
5974 | ||
88654014 LM |
5975 | /* If we are on an RAID enabled platform check that the disk is |
5976 | * attached to the raid controller. | |
5977 | * We do not need to test disks attachment for container based additions, | |
5978 | * they shall be already tested when container was created/assembled. | |
88c32bb1 | 5979 | */ |
d424212e | 5980 | rv = find_intel_hba_capability(fd, super, devname); |
f2f5c343 | 5981 | /* no orom/efi or non-intel hba of the disk */ |
f0f5a016 LM |
5982 | if (rv != 0) { |
5983 | dprintf("capability: %p fd: %d ret: %d\n", | |
5984 | super->orom, fd, rv); | |
5985 | return 1; | |
88c32bb1 DW |
5986 | } |
5987 | ||
f20c3968 DW |
5988 | if (super->current_vol >= 0) |
5989 | return add_to_super_imsm_volume(st, dk, fd, devname); | |
bf5a934a | 5990 | |
c2c087e6 | 5991 | fstat(fd, &stb); |
503975b9 | 5992 | dd = xcalloc(sizeof(*dd), 1); |
c2c087e6 DW |
5993 | dd->major = major(stb.st_rdev); |
5994 | dd->minor = minor(stb.st_rdev); | |
503975b9 | 5995 | dd->devname = devname ? xstrdup(devname) : NULL; |
c2c087e6 | 5996 | dd->fd = fd; |
689c9bf3 | 5997 | dd->e = NULL; |
1a64be56 | 5998 | dd->action = DISK_ADD; |
6da53c0e | 5999 | rv = imsm_read_serial(fd, devname, dd->serial, MAX_RAID_SERIAL_LEN); |
32ba9157 | 6000 | if (rv) { |
e7b84f9d | 6001 | pr_err("failed to retrieve scsi serial, aborting\n"); |
3a85bf0e | 6002 | __free_imsm_disk(dd, 0); |
0030e8d6 | 6003 | abort(); |
c2c087e6 | 6004 | } |
7c798f87 | 6005 | |
20bee0f8 PB |
6006 | if (super->hba && ((super->hba->type == SYS_DEV_NVME) || |
6007 | (super->hba->type == SYS_DEV_VMD))) { | |
6008 | int i; | |
7c798f87 MT |
6009 | char cntrl_path[PATH_MAX]; |
6010 | char *cntrl_name; | |
6011 | char pci_dev_path[PATH_MAX]; | |
20bee0f8 | 6012 | |
7c798f87 MT |
6013 | if (!diskfd_to_devpath(fd, 2, pci_dev_path) || |
6014 | !diskfd_to_devpath(fd, 1, cntrl_path)) { | |
8662f92d | 6015 | pr_err("failed to get dev paths, aborting\n"); |
3a85bf0e | 6016 | __free_imsm_disk(dd, 0); |
a8f3cfd5 MT |
6017 | return 1; |
6018 | } | |
6019 | ||
7c798f87 MT |
6020 | cntrl_name = basename(cntrl_path); |
6021 | if (is_multipath_nvme(fd)) | |
6022 | pr_err("%s controller supports Multi-Path I/O, Intel (R) VROC does not support multipathing\n", | |
6023 | cntrl_name); | |
6024 | ||
6025 | if (devpath_to_vendor(pci_dev_path) == 0x8086) { | |
20bee0f8 PB |
6026 | /* |
6027 | * If Intel's NVMe drive has serial ended with | |
6028 | * "-A","-B","-1" or "-2" it means that this is "x8" | |
6029 | * device (double drive on single PCIe card). | |
6030 | * User should be warned about potential data loss. | |
6031 | */ | |
6032 | for (i = MAX_RAID_SERIAL_LEN-1; i > 0; i--) { | |
6033 | /* Skip empty character at the end */ | |
6034 | if (dd->serial[i] == 0) | |
6035 | continue; | |
6036 | ||
6037 | if (((dd->serial[i] == 'A') || | |
6038 | (dd->serial[i] == 'B') || | |
6039 | (dd->serial[i] == '1') || | |
6040 | (dd->serial[i] == '2')) && | |
6041 | (dd->serial[i-1] == '-')) | |
6042 | pr_err("\tThe action you are about to take may put your data at risk.\n" | |
6043 | "\tPlease note that x8 devices may consist of two separate x4 devices " | |
6044 | "located on a single PCIe port.\n" | |
6045 | "\tRAID 0 is the only supported configuration for this type of x8 device.\n"); | |
6046 | break; | |
6047 | } | |
32716c51 PB |
6048 | } else if (super->hba->type == SYS_DEV_VMD && super->orom && |
6049 | !imsm_orom_has_tpv_support(super->orom)) { | |
6050 | pr_err("\tPlatform configuration does not support non-Intel NVMe drives.\n" | |
8b751247 | 6051 | "\tPlease refer to Intel(R) RSTe/VROC user guide.\n"); |
3a85bf0e | 6052 | __free_imsm_disk(dd, 0); |
32716c51 | 6053 | return 1; |
20bee0f8 PB |
6054 | } |
6055 | } | |
c2c087e6 | 6056 | |
c2c087e6 | 6057 | get_dev_size(fd, NULL, &size); |
3a85bf0e MG |
6058 | if (!get_dev_sector_size(fd, NULL, &member_sector_size)) { |
6059 | __free_imsm_disk(dd, 0); | |
aec01630 | 6060 | return 1; |
3a85bf0e | 6061 | } |
fa7bb6f8 PB |
6062 | |
6063 | if (super->sector_size == 0) { | |
6064 | /* this a first device, so sector_size is not set yet */ | |
6065 | super->sector_size = member_sector_size; | |
fa7bb6f8 PB |
6066 | } |
6067 | ||
71e5411e | 6068 | /* clear migr_rec when adding disk to container */ |
85337573 AO |
6069 | memset(super->migr_rec_buf, 0, MIGR_REC_BUF_SECTORS*MAX_SECTOR_SIZE); |
6070 | if (lseek64(fd, size - MIGR_REC_SECTOR_POSITION*member_sector_size, | |
de44e46f | 6071 | SEEK_SET) >= 0) { |
466070ad | 6072 | if ((unsigned int)write(fd, super->migr_rec_buf, |
85337573 AO |
6073 | MIGR_REC_BUF_SECTORS*member_sector_size) != |
6074 | MIGR_REC_BUF_SECTORS*member_sector_size) | |
71e5411e PB |
6075 | perror("Write migr_rec failed"); |
6076 | } | |
6077 | ||
c2c087e6 | 6078 | size /= 512; |
1f24f035 | 6079 | serialcpy(dd->disk.serial, dd->serial); |
5551b113 CA |
6080 | set_total_blocks(&dd->disk, size); |
6081 | if (__le32_to_cpu(dd->disk.total_blocks_hi) > 0) { | |
6082 | struct imsm_super *mpb = super->anchor; | |
6083 | mpb->attributes |= MPB_ATTRIB_2TB_DISK; | |
6084 | } | |
a8619d23 | 6085 | mark_spare(dd); |
c2c087e6 | 6086 | if (sysfs_disk_to_scsi_id(fd, &id) == 0) |
b9f594fe | 6087 | dd->disk.scsi_id = __cpu_to_le32(id); |
c2c087e6 | 6088 | else |
b9f594fe | 6089 | dd->disk.scsi_id = __cpu_to_le32(0); |
43dad3d6 DW |
6090 | |
6091 | if (st->update_tail) { | |
1a64be56 LM |
6092 | dd->next = super->disk_mgmt_list; |
6093 | super->disk_mgmt_list = dd; | |
43dad3d6 | 6094 | } else { |
12724c01 TM |
6095 | /* this is called outside of mdmon |
6096 | * write initial spare metadata | |
6097 | * mdmon will overwrite it. | |
6098 | */ | |
43dad3d6 DW |
6099 | dd->next = super->disks; |
6100 | super->disks = dd; | |
12724c01 | 6101 | write_super_imsm_spare(super, dd); |
43dad3d6 | 6102 | } |
f20c3968 DW |
6103 | |
6104 | return 0; | |
cdddbdbc DW |
6105 | } |
6106 | ||
1a64be56 LM |
6107 | static int remove_from_super_imsm(struct supertype *st, mdu_disk_info_t *dk) |
6108 | { | |
6109 | struct intel_super *super = st->sb; | |
6110 | struct dl *dd; | |
6111 | ||
6112 | /* remove from super works only in mdmon - for communication | |
6113 | * manager - monitor. Check if communication memory buffer | |
6114 | * is prepared. | |
6115 | */ | |
6116 | if (!st->update_tail) { | |
1ade5cc1 | 6117 | pr_err("shall be used in mdmon context only\n"); |
1a64be56 LM |
6118 | return 1; |
6119 | } | |
503975b9 | 6120 | dd = xcalloc(1, sizeof(*dd)); |
1a64be56 LM |
6121 | dd->major = dk->major; |
6122 | dd->minor = dk->minor; | |
1a64be56 | 6123 | dd->fd = -1; |
a8619d23 | 6124 | mark_spare(dd); |
1a64be56 LM |
6125 | dd->action = DISK_REMOVE; |
6126 | ||
6127 | dd->next = super->disk_mgmt_list; | |
6128 | super->disk_mgmt_list = dd; | |
6129 | ||
1a64be56 LM |
6130 | return 0; |
6131 | } | |
6132 | ||
f796af5d DW |
6133 | static int store_imsm_mpb(int fd, struct imsm_super *mpb); |
6134 | ||
6135 | static union { | |
f36a9ecd | 6136 | char buf[MAX_SECTOR_SIZE]; |
f796af5d | 6137 | struct imsm_super anchor; |
f36a9ecd | 6138 | } spare_record __attribute__ ((aligned(MAX_SECTOR_SIZE))); |
c2c087e6 | 6139 | |
12724c01 TM |
6140 | |
6141 | static int write_super_imsm_spare(struct intel_super *super, struct dl *d) | |
d23fe947 | 6142 | { |
d23fe947 | 6143 | struct imsm_super *mpb = super->anchor; |
f796af5d | 6144 | struct imsm_super *spare = &spare_record.anchor; |
d23fe947 | 6145 | __u32 sum; |
12724c01 TM |
6146 | |
6147 | if (d->index != -1) | |
6148 | return 1; | |
d23fe947 | 6149 | |
68641cdb JS |
6150 | spare->mpb_size = __cpu_to_le32(sizeof(struct imsm_super)); |
6151 | spare->generation_num = __cpu_to_le32(1UL); | |
f796af5d | 6152 | spare->attributes = MPB_ATTRIB_CHECKSUM_VERIFY; |
68641cdb JS |
6153 | spare->num_disks = 1; |
6154 | spare->num_raid_devs = 0; | |
6155 | spare->cache_size = mpb->cache_size; | |
6156 | spare->pwr_cycle_count = __cpu_to_le32(1); | |
f796af5d DW |
6157 | |
6158 | snprintf((char *) spare->sig, MAX_SIGNATURE_LENGTH, | |
6159 | MPB_SIGNATURE MPB_VERSION_RAID0); | |
d23fe947 | 6160 | |
12724c01 TM |
6161 | spare->disk[0] = d->disk; |
6162 | if (__le32_to_cpu(d->disk.total_blocks_hi) > 0) | |
6163 | spare->attributes |= MPB_ATTRIB_2TB_DISK; | |
6164 | ||
6165 | if (super->sector_size == 4096) | |
6166 | convert_to_4k_imsm_disk(&spare->disk[0]); | |
d23fe947 | 6167 | |
12724c01 TM |
6168 | sum = __gen_imsm_checksum(spare); |
6169 | spare->family_num = __cpu_to_le32(sum); | |
6170 | spare->orig_family_num = 0; | |
6171 | sum = __gen_imsm_checksum(spare); | |
6172 | spare->check_sum = __cpu_to_le32(sum); | |
027c374f | 6173 | |
12724c01 TM |
6174 | if (store_imsm_mpb(d->fd, spare)) { |
6175 | pr_err("failed for device %d:%d %s\n", | |
6176 | d->major, d->minor, strerror(errno)); | |
6177 | return 1; | |
6178 | } | |
6179 | ||
6180 | return 0; | |
6181 | } | |
6182 | /* spare records have their own family number and do not have any defined raid | |
6183 | * devices | |
6184 | */ | |
6185 | static int write_super_imsm_spares(struct intel_super *super, int doclose) | |
6186 | { | |
6187 | struct dl *d; | |
f36a9ecd | 6188 | |
12724c01 TM |
6189 | for (d = super->disks; d; d = d->next) { |
6190 | if (d->index != -1) | |
6191 | continue; | |
d23fe947 | 6192 | |
12724c01 | 6193 | if (write_super_imsm_spare(super, d)) |
e74255d9 | 6194 | return 1; |
12724c01 | 6195 | |
4389ce73 MT |
6196 | if (doclose) |
6197 | close_fd(&d->fd); | |
d23fe947 DW |
6198 | } |
6199 | ||
e74255d9 | 6200 | return 0; |
d23fe947 DW |
6201 | } |
6202 | ||
36988a3d | 6203 | static int write_super_imsm(struct supertype *st, int doclose) |
cdddbdbc | 6204 | { |
36988a3d | 6205 | struct intel_super *super = st->sb; |
f36a9ecd | 6206 | unsigned int sector_size = super->sector_size; |
949c47a0 | 6207 | struct imsm_super *mpb = super->anchor; |
c2c087e6 DW |
6208 | struct dl *d; |
6209 | __u32 generation; | |
6210 | __u32 sum; | |
d23fe947 | 6211 | int spares = 0; |
949c47a0 | 6212 | int i; |
a48ac0a8 | 6213 | __u32 mpb_size = sizeof(struct imsm_super) - sizeof(struct imsm_disk); |
36988a3d | 6214 | int num_disks = 0; |
146c6260 | 6215 | int clear_migration_record = 1; |
bbab0940 | 6216 | __u32 bbm_log_size; |
cdddbdbc | 6217 | |
c2c087e6 DW |
6218 | /* 'generation' is incremented everytime the metadata is written */ |
6219 | generation = __le32_to_cpu(mpb->generation_num); | |
6220 | generation++; | |
6221 | mpb->generation_num = __cpu_to_le32(generation); | |
6222 | ||
148acb7b DW |
6223 | /* fix up cases where previous mdadm releases failed to set |
6224 | * orig_family_num | |
6225 | */ | |
6226 | if (mpb->orig_family_num == 0) | |
6227 | mpb->orig_family_num = mpb->family_num; | |
6228 | ||
d23fe947 | 6229 | for (d = super->disks; d; d = d->next) { |
8796fdc4 | 6230 | if (d->index == -1) |
d23fe947 | 6231 | spares++; |
36988a3d | 6232 | else { |
d23fe947 | 6233 | mpb->disk[d->index] = d->disk; |
36988a3d AK |
6234 | num_disks++; |
6235 | } | |
d23fe947 | 6236 | } |
36988a3d | 6237 | for (d = super->missing; d; d = d->next) { |
47ee5a45 | 6238 | mpb->disk[d->index] = d->disk; |
36988a3d AK |
6239 | num_disks++; |
6240 | } | |
6241 | mpb->num_disks = num_disks; | |
6242 | mpb_size += sizeof(struct imsm_disk) * mpb->num_disks; | |
b9f594fe | 6243 | |
949c47a0 DW |
6244 | for (i = 0; i < mpb->num_raid_devs; i++) { |
6245 | struct imsm_dev *dev = __get_imsm_dev(mpb, i); | |
36988a3d | 6246 | struct imsm_dev *dev2 = get_imsm_dev(super, i); |
756a15f3 MG |
6247 | |
6248 | imsm_copy_dev(dev, dev2); | |
6249 | mpb_size += sizeof_imsm_dev(dev, 0); | |
6250 | ||
146c6260 AK |
6251 | if (is_gen_migration(dev2)) |
6252 | clear_migration_record = 0; | |
949c47a0 | 6253 | } |
bbab0940 TM |
6254 | |
6255 | bbm_log_size = get_imsm_bbm_log_size(super->bbm_log); | |
6256 | ||
6257 | if (bbm_log_size) { | |
6258 | memcpy((void *)mpb + mpb_size, super->bbm_log, bbm_log_size); | |
6259 | mpb->attributes |= MPB_ATTRIB_BBM; | |
6260 | } else | |
6261 | mpb->attributes &= ~MPB_ATTRIB_BBM; | |
6262 | ||
6263 | super->anchor->bbm_log_size = __cpu_to_le32(bbm_log_size); | |
6264 | mpb_size += bbm_log_size; | |
a48ac0a8 | 6265 | mpb->mpb_size = __cpu_to_le32(mpb_size); |
949c47a0 | 6266 | |
bbab0940 TM |
6267 | #ifdef DEBUG |
6268 | assert(super->len == 0 || mpb_size <= super->len); | |
6269 | #endif | |
6270 | ||
c2c087e6 | 6271 | /* recalculate checksum */ |
949c47a0 | 6272 | sum = __gen_imsm_checksum(mpb); |
c2c087e6 DW |
6273 | mpb->check_sum = __cpu_to_le32(sum); |
6274 | ||
51d83f5d AK |
6275 | if (super->clean_migration_record_by_mdmon) { |
6276 | clear_migration_record = 1; | |
6277 | super->clean_migration_record_by_mdmon = 0; | |
6278 | } | |
146c6260 | 6279 | if (clear_migration_record) |
de44e46f | 6280 | memset(super->migr_rec_buf, 0, |
85337573 | 6281 | MIGR_REC_BUF_SECTORS*MAX_SECTOR_SIZE); |
146c6260 | 6282 | |
f36a9ecd PB |
6283 | if (sector_size == 4096) |
6284 | convert_to_4k(super); | |
6285 | ||
d23fe947 | 6286 | /* write the mpb for disks that compose raid devices */ |
c2c087e6 | 6287 | for (d = super->disks; d ; d = d->next) { |
86c54047 | 6288 | if (d->index < 0 || is_failed(&d->disk)) |
d23fe947 | 6289 | continue; |
30602f53 | 6290 | |
146c6260 AK |
6291 | if (clear_migration_record) { |
6292 | unsigned long long dsize; | |
6293 | ||
6294 | get_dev_size(d->fd, NULL, &dsize); | |
de44e46f PB |
6295 | if (lseek64(d->fd, dsize - sector_size, |
6296 | SEEK_SET) >= 0) { | |
466070ad PB |
6297 | if ((unsigned int)write(d->fd, |
6298 | super->migr_rec_buf, | |
de44e46f PB |
6299 | MIGR_REC_BUF_SECTORS*sector_size) != |
6300 | MIGR_REC_BUF_SECTORS*sector_size) | |
9e2d750d | 6301 | perror("Write migr_rec failed"); |
146c6260 AK |
6302 | } |
6303 | } | |
51d83f5d AK |
6304 | |
6305 | if (store_imsm_mpb(d->fd, mpb)) | |
6306 | fprintf(stderr, | |
1ade5cc1 N |
6307 | "failed for device %d:%d (fd: %d)%s\n", |
6308 | d->major, d->minor, | |
51d83f5d AK |
6309 | d->fd, strerror(errno)); |
6310 | ||
4389ce73 MT |
6311 | if (doclose) |
6312 | close_fd(&d->fd); | |
c2c087e6 DW |
6313 | } |
6314 | ||
d23fe947 DW |
6315 | if (spares) |
6316 | return write_super_imsm_spares(super, doclose); | |
6317 | ||
e74255d9 | 6318 | return 0; |
c2c087e6 DW |
6319 | } |
6320 | ||
9b1fb677 | 6321 | static int create_array(struct supertype *st, int dev_idx) |
43dad3d6 DW |
6322 | { |
6323 | size_t len; | |
6324 | struct imsm_update_create_array *u; | |
6325 | struct intel_super *super = st->sb; | |
9b1fb677 | 6326 | struct imsm_dev *dev = get_imsm_dev(super, dev_idx); |
238c0a71 | 6327 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
54c2c1ea DW |
6328 | struct disk_info *inf; |
6329 | struct imsm_disk *disk; | |
6330 | int i; | |
43dad3d6 | 6331 | |
54c2c1ea DW |
6332 | len = sizeof(*u) - sizeof(*dev) + sizeof_imsm_dev(dev, 0) + |
6333 | sizeof(*inf) * map->num_members; | |
503975b9 | 6334 | u = xmalloc(len); |
43dad3d6 | 6335 | u->type = update_create_array; |
9b1fb677 | 6336 | u->dev_idx = dev_idx; |
43dad3d6 | 6337 | imsm_copy_dev(&u->dev, dev); |
54c2c1ea DW |
6338 | inf = get_disk_info(u); |
6339 | for (i = 0; i < map->num_members; i++) { | |
238c0a71 | 6340 | int idx = get_imsm_disk_idx(dev, i, MAP_X); |
9b1fb677 | 6341 | |
54c2c1ea | 6342 | disk = get_imsm_disk(super, idx); |
1ca5c8e0 N |
6343 | if (!disk) |
6344 | disk = get_imsm_missing(super, idx); | |
54c2c1ea DW |
6345 | serialcpy(inf[i].serial, disk->serial); |
6346 | } | |
43dad3d6 DW |
6347 | append_metadata_update(st, u, len); |
6348 | ||
6349 | return 0; | |
6350 | } | |
6351 | ||
1a64be56 | 6352 | static int mgmt_disk(struct supertype *st) |
43dad3d6 DW |
6353 | { |
6354 | struct intel_super *super = st->sb; | |
6355 | size_t len; | |
1a64be56 | 6356 | struct imsm_update_add_remove_disk *u; |
43dad3d6 | 6357 | |
1a64be56 | 6358 | if (!super->disk_mgmt_list) |
43dad3d6 DW |
6359 | return 0; |
6360 | ||
6361 | len = sizeof(*u); | |
503975b9 | 6362 | u = xmalloc(len); |
1a64be56 | 6363 | u->type = update_add_remove_disk; |
43dad3d6 DW |
6364 | append_metadata_update(st, u, len); |
6365 | ||
6366 | return 0; | |
6367 | } | |
2432ce9b AP |
6368 | |
6369 | __u32 crc32c_le(__u32 crc, unsigned char const *p, size_t len); | |
6370 | ||
e397cefe AP |
6371 | static int write_ppl_header(unsigned long long ppl_sector, int fd, void *buf) |
6372 | { | |
6373 | struct ppl_header *ppl_hdr = buf; | |
6374 | int ret; | |
6375 | ||
6376 | ppl_hdr->checksum = __cpu_to_le32(~crc32c_le(~0, buf, PPL_HEADER_SIZE)); | |
6377 | ||
6378 | if (lseek64(fd, ppl_sector * 512, SEEK_SET) < 0) { | |
6379 | ret = -errno; | |
6380 | perror("Failed to seek to PPL header location"); | |
6381 | return ret; | |
6382 | } | |
6383 | ||
6384 | if (write(fd, buf, PPL_HEADER_SIZE) != PPL_HEADER_SIZE) { | |
6385 | ret = -errno; | |
6386 | perror("Write PPL header failed"); | |
6387 | return ret; | |
6388 | } | |
6389 | ||
6390 | fsync(fd); | |
6391 | ||
6392 | return 0; | |
6393 | } | |
6394 | ||
2432ce9b AP |
6395 | static int write_init_ppl_imsm(struct supertype *st, struct mdinfo *info, int fd) |
6396 | { | |
6397 | struct intel_super *super = st->sb; | |
6398 | void *buf; | |
6399 | struct ppl_header *ppl_hdr; | |
6400 | int ret; | |
6401 | ||
b2514242 PB |
6402 | /* first clear entire ppl space */ |
6403 | ret = zero_disk_range(fd, info->ppl_sector, info->ppl_size); | |
6404 | if (ret) | |
6405 | return ret; | |
6406 | ||
6407 | ret = posix_memalign(&buf, MAX_SECTOR_SIZE, PPL_HEADER_SIZE); | |
2432ce9b AP |
6408 | if (ret) { |
6409 | pr_err("Failed to allocate PPL header buffer\n"); | |
e397cefe | 6410 | return -ret; |
2432ce9b AP |
6411 | } |
6412 | ||
6413 | memset(buf, 0, PPL_HEADER_SIZE); | |
6414 | ppl_hdr = buf; | |
6415 | memset(ppl_hdr->reserved, 0xff, PPL_HDR_RESERVED); | |
6416 | ppl_hdr->signature = __cpu_to_le32(super->anchor->orig_family_num); | |
b23d0750 AP |
6417 | |
6418 | if (info->mismatch_cnt) { | |
6419 | /* | |
6420 | * We are overwriting an invalid ppl. Make one entry with wrong | |
6421 | * checksum to prevent the kernel from skipping resync. | |
6422 | */ | |
6423 | ppl_hdr->entries_count = __cpu_to_le32(1); | |
6424 | ppl_hdr->entries[0].checksum = ~0; | |
6425 | } | |
6426 | ||
e397cefe | 6427 | ret = write_ppl_header(info->ppl_sector, fd, buf); |
2432ce9b AP |
6428 | |
6429 | free(buf); | |
6430 | return ret; | |
6431 | } | |
6432 | ||
e397cefe AP |
6433 | static int is_rebuilding(struct imsm_dev *dev); |
6434 | ||
2432ce9b AP |
6435 | static int validate_ppl_imsm(struct supertype *st, struct mdinfo *info, |
6436 | struct mdinfo *disk) | |
6437 | { | |
6438 | struct intel_super *super = st->sb; | |
6439 | struct dl *d; | |
e397cefe | 6440 | void *buf_orig, *buf, *buf_prev = NULL; |
2432ce9b | 6441 | int ret = 0; |
e397cefe | 6442 | struct ppl_header *ppl_hdr = NULL; |
2432ce9b AP |
6443 | __u32 crc; |
6444 | struct imsm_dev *dev; | |
2432ce9b | 6445 | __u32 idx; |
44b6b876 PB |
6446 | unsigned int i; |
6447 | unsigned long long ppl_offset = 0; | |
6448 | unsigned long long prev_gen_num = 0; | |
2432ce9b AP |
6449 | |
6450 | if (disk->disk.raid_disk < 0) | |
6451 | return 0; | |
6452 | ||
2432ce9b | 6453 | dev = get_imsm_dev(super, info->container_member); |
2fc0fc63 | 6454 | idx = get_imsm_disk_idx(dev, disk->disk.raid_disk, MAP_0); |
2432ce9b AP |
6455 | d = get_imsm_dl_disk(super, idx); |
6456 | ||
6457 | if (!d || d->index < 0 || is_failed(&d->disk)) | |
e397cefe AP |
6458 | return 0; |
6459 | ||
6460 | if (posix_memalign(&buf_orig, MAX_SECTOR_SIZE, PPL_HEADER_SIZE * 2)) { | |
6461 | pr_err("Failed to allocate PPL header buffer\n"); | |
6462 | return -1; | |
6463 | } | |
6464 | buf = buf_orig; | |
2432ce9b | 6465 | |
44b6b876 PB |
6466 | ret = 1; |
6467 | while (ppl_offset < MULTIPLE_PPL_AREA_SIZE_IMSM) { | |
e397cefe AP |
6468 | void *tmp; |
6469 | ||
44b6b876 | 6470 | dprintf("Checking potential PPL at offset: %llu\n", ppl_offset); |
2432ce9b | 6471 | |
44b6b876 PB |
6472 | if (lseek64(d->fd, info->ppl_sector * 512 + ppl_offset, |
6473 | SEEK_SET) < 0) { | |
6474 | perror("Failed to seek to PPL header location"); | |
6475 | ret = -1; | |
e397cefe | 6476 | break; |
44b6b876 | 6477 | } |
2432ce9b | 6478 | |
44b6b876 PB |
6479 | if (read(d->fd, buf, PPL_HEADER_SIZE) != PPL_HEADER_SIZE) { |
6480 | perror("Read PPL header failed"); | |
6481 | ret = -1; | |
e397cefe | 6482 | break; |
44b6b876 | 6483 | } |
2432ce9b | 6484 | |
44b6b876 | 6485 | ppl_hdr = buf; |
2432ce9b | 6486 | |
44b6b876 PB |
6487 | crc = __le32_to_cpu(ppl_hdr->checksum); |
6488 | ppl_hdr->checksum = 0; | |
6489 | ||
6490 | if (crc != ~crc32c_le(~0, buf, PPL_HEADER_SIZE)) { | |
6491 | dprintf("Wrong PPL header checksum on %s\n", | |
6492 | d->devname); | |
e397cefe | 6493 | break; |
44b6b876 PB |
6494 | } |
6495 | ||
6496 | if (prev_gen_num > __le64_to_cpu(ppl_hdr->generation)) { | |
6497 | /* previous was newest, it was already checked */ | |
e397cefe | 6498 | break; |
44b6b876 PB |
6499 | } |
6500 | ||
6501 | if ((__le32_to_cpu(ppl_hdr->signature) != | |
6502 | super->anchor->orig_family_num)) { | |
6503 | dprintf("Wrong PPL header signature on %s\n", | |
6504 | d->devname); | |
6505 | ret = 1; | |
e397cefe | 6506 | break; |
44b6b876 PB |
6507 | } |
6508 | ||
6509 | ret = 0; | |
6510 | prev_gen_num = __le64_to_cpu(ppl_hdr->generation); | |
2432ce9b | 6511 | |
44b6b876 PB |
6512 | ppl_offset += PPL_HEADER_SIZE; |
6513 | for (i = 0; i < __le32_to_cpu(ppl_hdr->entries_count); i++) | |
6514 | ppl_offset += | |
6515 | __le32_to_cpu(ppl_hdr->entries[i].pp_size); | |
e397cefe AP |
6516 | |
6517 | if (!buf_prev) | |
6518 | buf_prev = buf + PPL_HEADER_SIZE; | |
6519 | tmp = buf_prev; | |
6520 | buf_prev = buf; | |
6521 | buf = tmp; | |
2432ce9b AP |
6522 | } |
6523 | ||
e397cefe AP |
6524 | if (buf_prev) { |
6525 | buf = buf_prev; | |
6526 | ppl_hdr = buf_prev; | |
6527 | } | |
2432ce9b | 6528 | |
54148aba PB |
6529 | /* |
6530 | * Update metadata to use mutliple PPLs area (1MB). | |
6531 | * This is done once for all RAID members | |
6532 | */ | |
6533 | if (info->consistency_policy == CONSISTENCY_POLICY_PPL && | |
6534 | info->ppl_size != (MULTIPLE_PPL_AREA_SIZE_IMSM >> 9)) { | |
6535 | char subarray[20]; | |
6536 | struct mdinfo *member_dev; | |
6537 | ||
6538 | sprintf(subarray, "%d", info->container_member); | |
6539 | ||
6540 | if (mdmon_running(st->container_devnm)) | |
6541 | st->update_tail = &st->updates; | |
6542 | ||
03312b52 | 6543 | if (st->ss->update_subarray(st, subarray, UOPT_PPL, NULL)) { |
54148aba PB |
6544 | pr_err("Failed to update subarray %s\n", |
6545 | subarray); | |
6546 | } else { | |
6547 | if (st->update_tail) | |
6548 | flush_metadata_updates(st); | |
6549 | else | |
6550 | st->ss->sync_metadata(st); | |
6551 | info->ppl_size = (MULTIPLE_PPL_AREA_SIZE_IMSM >> 9); | |
6552 | for (member_dev = info->devs; member_dev; | |
6553 | member_dev = member_dev->next) | |
6554 | member_dev->ppl_size = | |
6555 | (MULTIPLE_PPL_AREA_SIZE_IMSM >> 9); | |
6556 | } | |
6557 | } | |
6558 | ||
b23d0750 | 6559 | if (ret == 1) { |
2fc0fc63 AP |
6560 | struct imsm_map *map = get_imsm_map(dev, MAP_X); |
6561 | ||
50b9c10d PB |
6562 | if (map->map_state == IMSM_T_STATE_UNINITIALIZED || |
6563 | (map->map_state == IMSM_T_STATE_NORMAL && | |
2ec9d182 | 6564 | !(dev->vol.dirty & RAIDVOL_DIRTY)) || |
e397cefe | 6565 | (is_rebuilding(dev) && |
4036e7ee | 6566 | vol_curr_migr_unit(dev) == 0 && |
2ec9d182 | 6567 | get_imsm_disk_idx(dev, disk->disk.raid_disk, MAP_1) != idx)) |
b23d0750 AP |
6568 | ret = st->ss->write_init_ppl(st, info, d->fd); |
6569 | else | |
6570 | info->mismatch_cnt++; | |
e397cefe AP |
6571 | } else if (ret == 0 && |
6572 | ppl_hdr->entries_count == 0 && | |
6573 | is_rebuilding(dev) && | |
6574 | info->resync_start == 0) { | |
6575 | /* | |
6576 | * The header has no entries - add a single empty entry and | |
6577 | * rewrite the header to prevent the kernel from going into | |
6578 | * resync after an interrupted rebuild. | |
6579 | */ | |
6580 | ppl_hdr->entries_count = __cpu_to_le32(1); | |
6581 | ret = write_ppl_header(info->ppl_sector, d->fd, buf); | |
b23d0750 | 6582 | } |
2432ce9b | 6583 | |
e397cefe AP |
6584 | free(buf_orig); |
6585 | ||
2432ce9b AP |
6586 | return ret; |
6587 | } | |
6588 | ||
2432ce9b AP |
6589 | static int write_init_ppl_imsm_all(struct supertype *st, struct mdinfo *info) |
6590 | { | |
6591 | struct intel_super *super = st->sb; | |
6592 | struct dl *d; | |
6593 | int ret = 0; | |
6594 | ||
6595 | if (info->consistency_policy != CONSISTENCY_POLICY_PPL || | |
6596 | info->array.level != 5) | |
6597 | return 0; | |
6598 | ||
6599 | for (d = super->disks; d ; d = d->next) { | |
6600 | if (d->index < 0 || is_failed(&d->disk)) | |
6601 | continue; | |
6602 | ||
6603 | ret = st->ss->write_init_ppl(st, info, d->fd); | |
6604 | if (ret) | |
6605 | break; | |
6606 | } | |
6607 | ||
6608 | return ret; | |
6609 | } | |
43dad3d6 | 6610 | |
fbc42556 JR |
6611 | /******************************************************************************* |
6612 | * Function: write_init_bitmap_imsm_vol | |
6613 | * Description: Write a bitmap header and prepares the area for the bitmap. | |
6614 | * Parameters: | |
6615 | * st : supertype information | |
6616 | * vol_idx : the volume index to use | |
6617 | * | |
6618 | * Returns: | |
6619 | * 0 : success | |
6620 | * -1 : fail | |
6621 | ******************************************************************************/ | |
6622 | static int write_init_bitmap_imsm_vol(struct supertype *st, int vol_idx) | |
6623 | { | |
6624 | struct intel_super *super = st->sb; | |
6625 | int prev_current_vol = super->current_vol; | |
6626 | struct dl *d; | |
6627 | int ret = 0; | |
6628 | ||
6629 | super->current_vol = vol_idx; | |
6630 | for (d = super->disks; d; d = d->next) { | |
6631 | if (d->index < 0 || is_failed(&d->disk)) | |
6632 | continue; | |
6633 | ret = st->ss->write_bitmap(st, d->fd, NoUpdate); | |
6634 | if (ret) | |
6635 | break; | |
6636 | } | |
6637 | super->current_vol = prev_current_vol; | |
6638 | return ret; | |
6639 | } | |
6640 | ||
6641 | /******************************************************************************* | |
6642 | * Function: write_init_bitmap_imsm_all | |
6643 | * Description: Write a bitmap header and prepares the area for the bitmap. | |
6644 | * Operation is executed for volumes with CONSISTENCY_POLICY_BITMAP. | |
6645 | * Parameters: | |
6646 | * st : supertype information | |
6647 | * info : info about the volume where the bitmap should be written | |
6648 | * vol_idx : the volume index to use | |
6649 | * | |
6650 | * Returns: | |
6651 | * 0 : success | |
6652 | * -1 : fail | |
6653 | ******************************************************************************/ | |
6654 | static int write_init_bitmap_imsm_all(struct supertype *st, struct mdinfo *info, | |
6655 | int vol_idx) | |
6656 | { | |
6657 | int ret = 0; | |
6658 | ||
6659 | if (info && (info->consistency_policy == CONSISTENCY_POLICY_BITMAP)) | |
6660 | ret = write_init_bitmap_imsm_vol(st, vol_idx); | |
6661 | ||
6662 | return ret; | |
6663 | } | |
6664 | ||
c2c087e6 DW |
6665 | static int write_init_super_imsm(struct supertype *st) |
6666 | { | |
9b1fb677 DW |
6667 | struct intel_super *super = st->sb; |
6668 | int current_vol = super->current_vol; | |
2432ce9b AP |
6669 | int rv = 0; |
6670 | struct mdinfo info; | |
6671 | ||
6672 | getinfo_super_imsm(st, &info, NULL); | |
9b1fb677 DW |
6673 | |
6674 | /* we are done with current_vol reset it to point st at the container */ | |
6675 | super->current_vol = -1; | |
6676 | ||
8273f55e | 6677 | if (st->update_tail) { |
43dad3d6 DW |
6678 | /* queue the recently created array / added disk |
6679 | * as a metadata update */ | |
8273f55e | 6680 | |
43dad3d6 | 6681 | /* determine if we are creating a volume or adding a disk */ |
9b1fb677 | 6682 | if (current_vol < 0) { |
1a64be56 LM |
6683 | /* in the mgmt (add/remove) disk case we are running |
6684 | * in mdmon context, so don't close fd's | |
43dad3d6 | 6685 | */ |
2432ce9b AP |
6686 | rv = mgmt_disk(st); |
6687 | } else { | |
fbc42556 | 6688 | /* adding the second volume to the array */ |
2432ce9b | 6689 | rv = write_init_ppl_imsm_all(st, &info); |
fbc42556 JR |
6690 | if (!rv) |
6691 | rv = write_init_bitmap_imsm_all(st, &info, current_vol); | |
2432ce9b AP |
6692 | if (!rv) |
6693 | rv = create_array(st, current_vol); | |
6694 | } | |
d682f344 N |
6695 | } else { |
6696 | struct dl *d; | |
6697 | for (d = super->disks; d; d = d->next) | |
ba728be7 | 6698 | Kill(d->devname, NULL, 0, -1, 1); |
fbc42556 | 6699 | if (current_vol >= 0) { |
2432ce9b | 6700 | rv = write_init_ppl_imsm_all(st, &info); |
fbc42556 JR |
6701 | if (!rv) |
6702 | rv = write_init_bitmap_imsm_all(st, &info, current_vol); | |
6703 | } | |
6704 | ||
2432ce9b AP |
6705 | if (!rv) |
6706 | rv = write_super_imsm(st, 1); | |
d682f344 | 6707 | } |
2432ce9b AP |
6708 | |
6709 | return rv; | |
cdddbdbc DW |
6710 | } |
6711 | ||
e683ca88 | 6712 | static int store_super_imsm(struct supertype *st, int fd) |
cdddbdbc | 6713 | { |
e683ca88 DW |
6714 | struct intel_super *super = st->sb; |
6715 | struct imsm_super *mpb = super ? super->anchor : NULL; | |
551c80c1 | 6716 | |
e683ca88 | 6717 | if (!mpb) |
ad97895e DW |
6718 | return 1; |
6719 | ||
f36a9ecd PB |
6720 | if (super->sector_size == 4096) |
6721 | convert_to_4k(super); | |
e683ca88 | 6722 | return store_imsm_mpb(fd, mpb); |
cdddbdbc DW |
6723 | } |
6724 | ||
cdddbdbc | 6725 | static int validate_geometry_imsm_container(struct supertype *st, int level, |
1f5d54a0 | 6726 | int raiddisks, |
af4348dd N |
6727 | unsigned long long data_offset, |
6728 | char *dev, | |
2c514b71 NB |
6729 | unsigned long long *freesize, |
6730 | int verbose) | |
cdddbdbc | 6731 | { |
c2c087e6 DW |
6732 | int fd; |
6733 | unsigned long long ldsize; | |
8662f92d | 6734 | struct intel_super *super = NULL; |
f2f5c343 | 6735 | int rv = 0; |
cdddbdbc | 6736 | |
6f2af6a4 | 6737 | if (!is_container(level)) |
c2c087e6 DW |
6738 | return 0; |
6739 | if (!dev) | |
6740 | return 1; | |
6741 | ||
dca80fcd | 6742 | fd = dev_open(dev, O_RDONLY|O_EXCL); |
4389ce73 MT |
6743 | if (!is_fd_valid(fd)) { |
6744 | pr_vrb("imsm: Cannot open %s: %s\n", dev, strerror(errno)); | |
c2c087e6 DW |
6745 | return 0; |
6746 | } | |
8662f92d MT |
6747 | if (!get_dev_size(fd, dev, &ldsize)) |
6748 | goto exit; | |
f2f5c343 LM |
6749 | |
6750 | /* capabilities retrieve could be possible | |
6751 | * note that there is no fd for the disks in array. | |
6752 | */ | |
6753 | super = alloc_super(); | |
8662f92d MT |
6754 | if (!super) |
6755 | goto exit; | |
6756 | ||
6757 | if (!get_dev_sector_size(fd, NULL, &super->sector_size)) | |
6758 | goto exit; | |
fa7bb6f8 | 6759 | |
ba728be7 | 6760 | rv = find_intel_hba_capability(fd, super, verbose > 0 ? dev : NULL); |
f2f5c343 LM |
6761 | if (rv != 0) { |
6762 | #if DEBUG | |
6763 | char str[256]; | |
6764 | fd2devname(fd, str); | |
1ade5cc1 | 6765 | dprintf("fd: %d %s orom: %p rv: %d raiddisk: %d\n", |
f2f5c343 LM |
6766 | fd, str, super->orom, rv, raiddisks); |
6767 | #endif | |
6768 | /* no orom/efi or non-intel hba of the disk */ | |
8662f92d MT |
6769 | rv = 0; |
6770 | goto exit; | |
f2f5c343 | 6771 | } |
9126b9a8 CA |
6772 | if (super->orom) { |
6773 | if (raiddisks > super->orom->tds) { | |
6774 | if (verbose) | |
7a862a02 | 6775 | pr_err("%d exceeds maximum number of platform supported disks: %d\n", |
9126b9a8 | 6776 | raiddisks, super->orom->tds); |
8662f92d | 6777 | goto exit; |
9126b9a8 CA |
6778 | } |
6779 | if ((super->orom->attr & IMSM_OROM_ATTR_2TB_DISK) == 0 && | |
6780 | (ldsize >> 9) >> 32 > 0) { | |
6781 | if (verbose) | |
e7b84f9d | 6782 | pr_err("%s exceeds maximum platform supported size\n", dev); |
8662f92d MT |
6783 | goto exit; |
6784 | } | |
6785 | ||
6786 | if (super->hba->type == SYS_DEV_VMD || | |
6787 | super->hba->type == SYS_DEV_NVME) { | |
6788 | if (!imsm_is_nvme_namespace_supported(fd, 1)) { | |
6789 | if (verbose) | |
6790 | pr_err("NVMe namespace %s is not supported by IMSM\n", | |
6791 | basename(dev)); | |
6792 | goto exit; | |
6793 | } | |
9126b9a8 | 6794 | } |
f2f5c343 | 6795 | } |
1f5d54a0 MT |
6796 | if (freesize) |
6797 | *freesize = avail_size_imsm(st, ldsize >> 9, data_offset); | |
8662f92d MT |
6798 | rv = 1; |
6799 | exit: | |
6800 | if (super) | |
6801 | free_imsm(super); | |
6802 | close(fd); | |
c2c087e6 | 6803 | |
8662f92d | 6804 | return rv; |
cdddbdbc DW |
6805 | } |
6806 | ||
0dcecb2e DW |
6807 | static unsigned long long find_size(struct extent *e, int *idx, int num_extents) |
6808 | { | |
6809 | const unsigned long long base_start = e[*idx].start; | |
6810 | unsigned long long end = base_start + e[*idx].size; | |
6811 | int i; | |
6812 | ||
6813 | if (base_start == end) | |
6814 | return 0; | |
6815 | ||
6816 | *idx = *idx + 1; | |
6817 | for (i = *idx; i < num_extents; i++) { | |
6818 | /* extend overlapping extents */ | |
6819 | if (e[i].start >= base_start && | |
6820 | e[i].start <= end) { | |
6821 | if (e[i].size == 0) | |
6822 | return 0; | |
6823 | if (e[i].start + e[i].size > end) | |
6824 | end = e[i].start + e[i].size; | |
6825 | } else if (e[i].start > end) { | |
6826 | *idx = i; | |
6827 | break; | |
6828 | } | |
6829 | } | |
6830 | ||
6831 | return end - base_start; | |
6832 | } | |
6833 | ||
aa19fdd4 | 6834 | /** merge_extents() - analyze extents and get free size. |
9bc426fa | 6835 | * @super: Intel metadata, not NULL. |
aa19fdd4 | 6836 | * @expanding: if set, we are expanding &super->current_vol. |
9bc426fa | 6837 | * |
aa19fdd4 MT |
6838 | * Build a composite disk with all known extents and generate a size given the |
6839 | * "all disks in an array must share a common start offset" constraint. | |
6840 | * If a volume is expanded, then return free space after the volume. | |
9bc426fa | 6841 | * |
aa19fdd4 | 6842 | * Return: Free space or 0 on failure. |
9bc426fa | 6843 | */ |
aa19fdd4 | 6844 | static unsigned long long merge_extents(struct intel_super *super, const bool expanding) |
0dcecb2e | 6845 | { |
9bc426fa | 6846 | struct extent *e; |
0dcecb2e | 6847 | struct dl *dl; |
aa19fdd4 MT |
6848 | int i, j, pos_vol_idx = -1; |
6849 | int extent_idx = 0; | |
6850 | int sum_extents = 0; | |
6851 | unsigned long long pos = 0; | |
b9d77223 | 6852 | unsigned long long start = 0; |
1dea84ae MT |
6853 | unsigned long long free_size = 0; |
6854 | ||
6855 | unsigned long pre_reservation = 0; | |
6856 | unsigned long post_reservation = IMSM_RESERVED_SECTORS; | |
6857 | unsigned long reservation_size; | |
0dcecb2e | 6858 | |
9bc426fa MT |
6859 | for (dl = super->disks; dl; dl = dl->next) |
6860 | if (dl->e) | |
6861 | sum_extents += dl->extent_cnt; | |
6862 | e = xcalloc(sum_extents, sizeof(struct extent)); | |
6863 | ||
0dcecb2e DW |
6864 | /* coalesce and sort all extents. also, check to see if we need to |
6865 | * reserve space between member arrays | |
6866 | */ | |
6867 | j = 0; | |
6868 | for (dl = super->disks; dl; dl = dl->next) { | |
6869 | if (!dl->e) | |
6870 | continue; | |
6871 | for (i = 0; i < dl->extent_cnt; i++) | |
6872 | e[j++] = dl->e[i]; | |
6873 | } | |
6874 | qsort(e, sum_extents, sizeof(*e), cmp_extent); | |
6875 | ||
6876 | /* merge extents */ | |
6877 | i = 0; | |
6878 | j = 0; | |
6879 | while (i < sum_extents) { | |
6880 | e[j].start = e[i].start; | |
aa19fdd4 | 6881 | e[j].vol = e[i].vol; |
0dcecb2e DW |
6882 | e[j].size = find_size(e, &i, sum_extents); |
6883 | j++; | |
6884 | if (e[j-1].size == 0) | |
6885 | break; | |
6886 | } | |
6887 | ||
0dcecb2e DW |
6888 | i = 0; |
6889 | do { | |
aa19fdd4 | 6890 | unsigned long long esize = e[i].start - pos; |
0dcecb2e | 6891 | |
1dea84ae MT |
6892 | if (expanding ? pos_vol_idx == super->current_vol : esize >= free_size) { |
6893 | free_size = esize; | |
0dcecb2e | 6894 | start = pos; |
aa19fdd4 | 6895 | extent_idx = i; |
0dcecb2e | 6896 | } |
aa19fdd4 | 6897 | |
0dcecb2e | 6898 | pos = e[i].start + e[i].size; |
aa19fdd4 MT |
6899 | pos_vol_idx = e[i].vol; |
6900 | ||
0dcecb2e DW |
6901 | i++; |
6902 | } while (e[i-1].size); | |
0dcecb2e | 6903 | |
1dea84ae MT |
6904 | if (free_size == 0) { |
6905 | dprintf("imsm: Cannot find free size.\n"); | |
6906 | free(e); | |
a7dd165b | 6907 | return 0; |
1dea84ae | 6908 | } |
a7dd165b | 6909 | |
1dea84ae MT |
6910 | if (!expanding && extent_idx != 0) |
6911 | /* | |
6912 | * Not a real first volume in a container is created, pre_reservation is needed. | |
6913 | */ | |
6914 | pre_reservation = IMSM_RESERVED_SECTORS; | |
0dcecb2e | 6915 | |
1dea84ae MT |
6916 | if (e[extent_idx].size == 0) |
6917 | /* | |
6918 | * extent_idx points to the metadata, post_reservation is allready done. | |
6919 | */ | |
6920 | post_reservation = 0; | |
6921 | free(e); | |
0dcecb2e | 6922 | |
1dea84ae MT |
6923 | reservation_size = pre_reservation + post_reservation; |
6924 | ||
6925 | if (free_size < reservation_size) { | |
6926 | dprintf("imsm: Reservation size is greater than free space.\n"); | |
6927 | return 0; | |
6928 | } | |
0dcecb2e | 6929 | |
1dea84ae MT |
6930 | super->create_offset = start + pre_reservation; |
6931 | return free_size - reservation_size; | |
0dcecb2e DW |
6932 | } |
6933 | ||
88c32bb1 DW |
6934 | static int is_raid_level_supported(const struct imsm_orom *orom, int level, int raiddisks) |
6935 | { | |
6936 | if (level < 0 || level == 6 || level == 4) | |
6937 | return 0; | |
6938 | ||
6939 | /* if we have an orom prevent invalid raid levels */ | |
6940 | if (orom) | |
6941 | switch (level) { | |
6942 | case 0: return imsm_orom_has_raid0(orom); | |
6943 | case 1: | |
6944 | if (raiddisks > 2) | |
6945 | return imsm_orom_has_raid1e(orom); | |
1c556e92 DW |
6946 | return imsm_orom_has_raid1(orom) && raiddisks == 2; |
6947 | case 10: return imsm_orom_has_raid10(orom) && raiddisks == 4; | |
6948 | case 5: return imsm_orom_has_raid5(orom) && raiddisks > 2; | |
88c32bb1 DW |
6949 | } |
6950 | else | |
6951 | return 1; /* not on an Intel RAID platform so anything goes */ | |
6952 | ||
6953 | return 0; | |
6954 | } | |
6955 | ||
ca9de185 LM |
6956 | static int |
6957 | active_arrays_by_format(char *name, char* hba, struct md_list **devlist, | |
6958 | int dpa, int verbose) | |
6959 | { | |
6960 | struct mdstat_ent *mdstat = mdstat_read(0, 0); | |
594dc1b8 | 6961 | struct mdstat_ent *memb; |
ca9de185 LM |
6962 | int count = 0; |
6963 | int num = 0; | |
594dc1b8 | 6964 | struct md_list *dv; |
ca9de185 LM |
6965 | int found; |
6966 | ||
6967 | for (memb = mdstat ; memb ; memb = memb->next) { | |
6968 | if (memb->metadata_version && | |
fc54fe7a | 6969 | (strncmp(memb->metadata_version, "external:", 9) == 0) && |
ca9de185 LM |
6970 | (strcmp(&memb->metadata_version[9], name) == 0) && |
6971 | !is_subarray(memb->metadata_version+9) && | |
6972 | memb->members) { | |
6973 | struct dev_member *dev = memb->members; | |
6974 | int fd = -1; | |
4389ce73 | 6975 | while (dev && !is_fd_valid(fd)) { |
503975b9 | 6976 | char *path = xmalloc(strlen(dev->name) + strlen("/dev/") + 1); |
dd5ab402 | 6977 | num = snprintf(path, PATH_MAX, "%s%s", "/dev/", dev->name); |
503975b9 N |
6978 | if (num > 0) |
6979 | fd = open(path, O_RDONLY, 0); | |
4389ce73 | 6980 | if (num <= 0 || !is_fd_valid(fd)) { |
676e87a8 | 6981 | pr_vrb("Cannot open %s: %s\n", |
503975b9 | 6982 | dev->name, strerror(errno)); |
ca9de185 | 6983 | } |
503975b9 | 6984 | free(path); |
ca9de185 LM |
6985 | dev = dev->next; |
6986 | } | |
6987 | found = 0; | |
4389ce73 | 6988 | if (is_fd_valid(fd) && disk_attached_to_hba(fd, hba)) { |
ca9de185 LM |
6989 | struct mdstat_ent *vol; |
6990 | for (vol = mdstat ; vol ; vol = vol->next) { | |
089f9d79 | 6991 | if (vol->active > 0 && |
ca9de185 | 6992 | vol->metadata_version && |
9581efb1 | 6993 | is_container_member(vol, memb->devnm)) { |
ca9de185 LM |
6994 | found++; |
6995 | count++; | |
6996 | } | |
6997 | } | |
6998 | if (*devlist && (found < dpa)) { | |
503975b9 | 6999 | dv = xcalloc(1, sizeof(*dv)); |
9581efb1 N |
7000 | dv->devname = xmalloc(strlen(memb->devnm) + strlen("/dev/") + 1); |
7001 | sprintf(dv->devname, "%s%s", "/dev/", memb->devnm); | |
503975b9 N |
7002 | dv->found = found; |
7003 | dv->used = 0; | |
7004 | dv->next = *devlist; | |
7005 | *devlist = dv; | |
ca9de185 LM |
7006 | } |
7007 | } | |
4389ce73 | 7008 | close_fd(&fd); |
ca9de185 LM |
7009 | } |
7010 | } | |
7011 | free_mdstat(mdstat); | |
7012 | return count; | |
7013 | } | |
7014 | ||
7015 | #ifdef DEBUG_LOOP | |
7016 | static struct md_list* | |
7017 | get_loop_devices(void) | |
7018 | { | |
7019 | int i; | |
7020 | struct md_list *devlist = NULL; | |
594dc1b8 | 7021 | struct md_list *dv; |
ca9de185 LM |
7022 | |
7023 | for(i = 0; i < 12; i++) { | |
503975b9 N |
7024 | dv = xcalloc(1, sizeof(*dv)); |
7025 | dv->devname = xmalloc(40); | |
ca9de185 LM |
7026 | sprintf(dv->devname, "/dev/loop%d", i); |
7027 | dv->next = devlist; | |
7028 | devlist = dv; | |
7029 | } | |
7030 | return devlist; | |
7031 | } | |
7032 | #endif | |
7033 | ||
7034 | static struct md_list* | |
7035 | get_devices(const char *hba_path) | |
7036 | { | |
7037 | struct md_list *devlist = NULL; | |
594dc1b8 | 7038 | struct md_list *dv; |
ca9de185 LM |
7039 | struct dirent *ent; |
7040 | DIR *dir; | |
7041 | int err = 0; | |
7042 | ||
7043 | #if DEBUG_LOOP | |
7044 | devlist = get_loop_devices(); | |
7045 | return devlist; | |
7046 | #endif | |
7047 | /* scroll through /sys/dev/block looking for devices attached to | |
7048 | * this hba | |
7049 | */ | |
7050 | dir = opendir("/sys/dev/block"); | |
7051 | for (ent = dir ? readdir(dir) : NULL; ent; ent = readdir(dir)) { | |
7052 | int fd; | |
7053 | char buf[1024]; | |
7054 | int major, minor; | |
7055 | char *path = NULL; | |
7056 | if (sscanf(ent->d_name, "%d:%d", &major, &minor) != 2) | |
7057 | continue; | |
7c798f87 | 7058 | path = devt_to_devpath(makedev(major, minor), 1, NULL); |
ca9de185 LM |
7059 | if (!path) |
7060 | continue; | |
7061 | if (!path_attached_to_hba(path, hba_path)) { | |
7062 | free(path); | |
7063 | path = NULL; | |
7064 | continue; | |
7065 | } | |
7066 | free(path); | |
7067 | path = NULL; | |
7068 | fd = dev_open(ent->d_name, O_RDONLY); | |
4389ce73 | 7069 | if (is_fd_valid(fd)) { |
ca9de185 LM |
7070 | fd2devname(fd, buf); |
7071 | close(fd); | |
7072 | } else { | |
e7b84f9d | 7073 | pr_err("cannot open device: %s\n", |
ca9de185 LM |
7074 | ent->d_name); |
7075 | continue; | |
7076 | } | |
7077 | ||
503975b9 N |
7078 | dv = xcalloc(1, sizeof(*dv)); |
7079 | dv->devname = xstrdup(buf); | |
ca9de185 LM |
7080 | dv->next = devlist; |
7081 | devlist = dv; | |
7082 | } | |
7083 | if (err) { | |
7084 | while(devlist) { | |
7085 | dv = devlist; | |
7086 | devlist = devlist->next; | |
7087 | free(dv->devname); | |
7088 | free(dv); | |
7089 | } | |
7090 | } | |
562aa102 | 7091 | closedir(dir); |
ca9de185 LM |
7092 | return devlist; |
7093 | } | |
7094 | ||
7095 | static int | |
7096 | count_volumes_list(struct md_list *devlist, char *homehost, | |
7097 | int verbose, int *found) | |
7098 | { | |
7099 | struct md_list *tmpdev; | |
7100 | int count = 0; | |
594dc1b8 | 7101 | struct supertype *st; |
ca9de185 LM |
7102 | |
7103 | /* first walk the list of devices to find a consistent set | |
7104 | * that match the criterea, if that is possible. | |
7105 | * We flag the ones we like with 'used'. | |
7106 | */ | |
7107 | *found = 0; | |
7108 | st = match_metadata_desc_imsm("imsm"); | |
7109 | if (st == NULL) { | |
676e87a8 | 7110 | pr_vrb("cannot allocate memory for imsm supertype\n"); |
ca9de185 LM |
7111 | return 0; |
7112 | } | |
7113 | ||
7114 | for (tmpdev = devlist; tmpdev; tmpdev = tmpdev->next) { | |
7115 | char *devname = tmpdev->devname; | |
0a6bff09 | 7116 | dev_t rdev; |
ca9de185 LM |
7117 | struct supertype *tst; |
7118 | int dfd; | |
7119 | if (tmpdev->used > 1) | |
7120 | continue; | |
7121 | tst = dup_super(st); | |
7122 | if (tst == NULL) { | |
676e87a8 | 7123 | pr_vrb("cannot allocate memory for imsm supertype\n"); |
ca9de185 LM |
7124 | goto err_1; |
7125 | } | |
7126 | tmpdev->container = 0; | |
7127 | dfd = dev_open(devname, O_RDONLY|O_EXCL); | |
4389ce73 | 7128 | if (!is_fd_valid(dfd)) { |
1ade5cc1 | 7129 | dprintf("cannot open device %s: %s\n", |
ca9de185 LM |
7130 | devname, strerror(errno)); |
7131 | tmpdev->used = 2; | |
0a6bff09 | 7132 | } else if (!fstat_is_blkdev(dfd, devname, &rdev)) { |
ca9de185 LM |
7133 | tmpdev->used = 2; |
7134 | } else if (must_be_container(dfd)) { | |
7135 | struct supertype *cst; | |
7136 | cst = super_by_fd(dfd, NULL); | |
7137 | if (cst == NULL) { | |
1ade5cc1 | 7138 | dprintf("cannot recognize container type %s\n", |
ca9de185 LM |
7139 | devname); |
7140 | tmpdev->used = 2; | |
7141 | } else if (tst->ss != st->ss) { | |
1ade5cc1 | 7142 | dprintf("non-imsm container - ignore it: %s\n", |
ca9de185 LM |
7143 | devname); |
7144 | tmpdev->used = 2; | |
7145 | } else if (!tst->ss->load_container || | |
7146 | tst->ss->load_container(tst, dfd, NULL)) | |
7147 | tmpdev->used = 2; | |
7148 | else { | |
7149 | tmpdev->container = 1; | |
7150 | } | |
7151 | if (cst) | |
7152 | cst->ss->free_super(cst); | |
7153 | } else { | |
0a6bff09 | 7154 | tmpdev->st_rdev = rdev; |
ca9de185 | 7155 | if (tst->ss->load_super(tst,dfd, NULL)) { |
1ade5cc1 | 7156 | dprintf("no RAID superblock on %s\n", |
ca9de185 LM |
7157 | devname); |
7158 | tmpdev->used = 2; | |
7159 | } else if (tst->ss->compare_super == NULL) { | |
1ade5cc1 | 7160 | dprintf("Cannot assemble %s metadata on %s\n", |
ca9de185 LM |
7161 | tst->ss->name, devname); |
7162 | tmpdev->used = 2; | |
7163 | } | |
7164 | } | |
4389ce73 MT |
7165 | close_fd(&dfd); |
7166 | ||
ca9de185 LM |
7167 | if (tmpdev->used == 2 || tmpdev->used == 4) { |
7168 | /* Ignore unrecognised devices during auto-assembly */ | |
7169 | goto loop; | |
7170 | } | |
7171 | else { | |
7172 | struct mdinfo info; | |
7173 | tst->ss->getinfo_super(tst, &info, NULL); | |
7174 | ||
7175 | if (st->minor_version == -1) | |
7176 | st->minor_version = tst->minor_version; | |
7177 | ||
7178 | if (memcmp(info.uuid, uuid_zero, | |
7179 | sizeof(int[4])) == 0) { | |
7180 | /* this is a floating spare. It cannot define | |
7181 | * an array unless there are no more arrays of | |
7182 | * this type to be found. It can be included | |
7183 | * in an array of this type though. | |
7184 | */ | |
7185 | tmpdev->used = 3; | |
7186 | goto loop; | |
7187 | } | |
7188 | ||
7189 | if (st->ss != tst->ss || | |
7190 | st->minor_version != tst->minor_version || | |
c7b8547c | 7191 | st->ss->compare_super(st, tst, 1) != 0) { |
ca9de185 LM |
7192 | /* Some mismatch. If exactly one array matches this host, |
7193 | * we can resolve on that one. | |
7194 | * Or, if we are auto assembling, we just ignore the second | |
7195 | * for now. | |
7196 | */ | |
1ade5cc1 | 7197 | dprintf("superblock on %s doesn't match others - assembly aborted\n", |
ca9de185 LM |
7198 | devname); |
7199 | goto loop; | |
7200 | } | |
7201 | tmpdev->used = 1; | |
7202 | *found = 1; | |
7203 | dprintf("found: devname: %s\n", devname); | |
7204 | } | |
7205 | loop: | |
7206 | if (tst) | |
7207 | tst->ss->free_super(tst); | |
7208 | } | |
7209 | if (*found != 0) { | |
7210 | int err; | |
7211 | if ((err = load_super_imsm_all(st, -1, &st->sb, NULL, devlist, 0)) == 0) { | |
7212 | struct mdinfo *iter, *head = st->ss->container_content(st, NULL); | |
7213 | for (iter = head; iter; iter = iter->next) { | |
7214 | dprintf("content->text_version: %s vol\n", | |
7215 | iter->text_version); | |
7216 | if (iter->array.state & (1<<MD_SB_BLOCK_VOLUME)) { | |
7217 | /* do not assemble arrays with unsupported | |
7218 | configurations */ | |
1ade5cc1 | 7219 | dprintf("Cannot activate member %s.\n", |
ca9de185 LM |
7220 | iter->text_version); |
7221 | } else | |
7222 | count++; | |
7223 | } | |
7224 | sysfs_free(head); | |
7225 | ||
7226 | } else { | |
1ade5cc1 | 7227 | dprintf("No valid super block on device list: err: %d %p\n", |
ca9de185 LM |
7228 | err, st->sb); |
7229 | } | |
7230 | } else { | |
1ade5cc1 | 7231 | dprintf("no more devices to examine\n"); |
ca9de185 LM |
7232 | } |
7233 | ||
7234 | for (tmpdev = devlist; tmpdev; tmpdev = tmpdev->next) { | |
089f9d79 | 7235 | if (tmpdev->used == 1 && tmpdev->found) { |
ca9de185 LM |
7236 | if (count) { |
7237 | if (count < tmpdev->found) | |
7238 | count = 0; | |
7239 | else | |
7240 | count -= tmpdev->found; | |
7241 | } | |
7242 | } | |
7243 | if (tmpdev->used == 1) | |
7244 | tmpdev->used = 4; | |
7245 | } | |
7246 | err_1: | |
7247 | if (st) | |
7248 | st->ss->free_super(st); | |
7249 | return count; | |
7250 | } | |
7251 | ||
d3c11416 AO |
7252 | static int __count_volumes(char *hba_path, int dpa, int verbose, |
7253 | int cmp_hba_path) | |
ca9de185 | 7254 | { |
72a45777 | 7255 | struct sys_dev *idev, *intel_devices = find_intel_devices(); |
ca9de185 | 7256 | int count = 0; |
72a45777 PB |
7257 | const struct orom_entry *entry; |
7258 | struct devid_list *dv, *devid_list; | |
ca9de185 | 7259 | |
d3c11416 | 7260 | if (!hba_path) |
ca9de185 LM |
7261 | return 0; |
7262 | ||
72a45777 | 7263 | for (idev = intel_devices; idev; idev = idev->next) { |
d3c11416 AO |
7264 | if (strstr(idev->path, hba_path)) |
7265 | break; | |
72a45777 PB |
7266 | } |
7267 | ||
7268 | if (!idev || !idev->dev_id) | |
ca9de185 | 7269 | return 0; |
72a45777 PB |
7270 | |
7271 | entry = get_orom_entry_by_device_id(idev->dev_id); | |
7272 | ||
7273 | if (!entry || !entry->devid_list) | |
7274 | return 0; | |
7275 | ||
7276 | devid_list = entry->devid_list; | |
7277 | for (dv = devid_list; dv; dv = dv->next) { | |
594dc1b8 | 7278 | struct md_list *devlist; |
d3c11416 AO |
7279 | struct sys_dev *device = NULL; |
7280 | char *hpath; | |
72a45777 PB |
7281 | int found = 0; |
7282 | ||
d3c11416 AO |
7283 | if (cmp_hba_path) |
7284 | device = device_by_id_and_path(dv->devid, hba_path); | |
7285 | else | |
7286 | device = device_by_id(dv->devid); | |
7287 | ||
72a45777 | 7288 | if (device) |
d3c11416 | 7289 | hpath = device->path; |
72a45777 PB |
7290 | else |
7291 | return 0; | |
7292 | ||
d3c11416 | 7293 | devlist = get_devices(hpath); |
72a45777 PB |
7294 | /* if no intel devices return zero volumes */ |
7295 | if (devlist == NULL) | |
7296 | return 0; | |
7297 | ||
d3c11416 AO |
7298 | count += active_arrays_by_format("imsm", hpath, &devlist, dpa, |
7299 | verbose); | |
7300 | dprintf("path: %s active arrays: %d\n", hpath, count); | |
72a45777 PB |
7301 | if (devlist == NULL) |
7302 | return 0; | |
7303 | do { | |
7304 | found = 0; | |
7305 | count += count_volumes_list(devlist, | |
7306 | NULL, | |
7307 | verbose, | |
7308 | &found); | |
7309 | dprintf("found %d count: %d\n", found, count); | |
7310 | } while (found); | |
7311 | ||
d3c11416 | 7312 | dprintf("path: %s total number of volumes: %d\n", hpath, count); |
72a45777 PB |
7313 | |
7314 | while (devlist) { | |
7315 | struct md_list *dv = devlist; | |
7316 | devlist = devlist->next; | |
7317 | free(dv->devname); | |
7318 | free(dv); | |
7319 | } | |
ca9de185 LM |
7320 | } |
7321 | return count; | |
7322 | } | |
7323 | ||
d3c11416 AO |
7324 | static int count_volumes(struct intel_hba *hba, int dpa, int verbose) |
7325 | { | |
7326 | if (!hba) | |
7327 | return 0; | |
7328 | if (hba->type == SYS_DEV_VMD) { | |
7329 | struct sys_dev *dev; | |
7330 | int count = 0; | |
7331 | ||
7332 | for (dev = find_intel_devices(); dev; dev = dev->next) { | |
7333 | if (dev->type == SYS_DEV_VMD) | |
7334 | count += __count_volumes(dev->path, dpa, | |
7335 | verbose, 1); | |
7336 | } | |
7337 | return count; | |
7338 | } | |
7339 | return __count_volumes(hba->path, dpa, verbose, 0); | |
7340 | } | |
7341 | ||
cd9d1ac7 DW |
7342 | static int imsm_default_chunk(const struct imsm_orom *orom) |
7343 | { | |
7344 | /* up to 512 if the plaform supports it, otherwise the platform max. | |
7345 | * 128 if no platform detected | |
7346 | */ | |
7347 | int fs = max(7, orom ? fls(orom->sss) : 0); | |
7348 | ||
7349 | return min(512, (1 << fs)); | |
7350 | } | |
73408129 | 7351 | |
6592ce37 DW |
7352 | static int |
7353 | validate_geometry_imsm_orom(struct intel_super *super, int level, int layout, | |
2cc699af | 7354 | int raiddisks, int *chunk, unsigned long long size, int verbose) |
6592ce37 | 7355 | { |
660260d0 DW |
7356 | /* check/set platform and metadata limits/defaults */ |
7357 | if (super->orom && raiddisks > super->orom->dpa) { | |
676e87a8 | 7358 | pr_vrb("platform supports a maximum of %d disks per array\n", |
660260d0 | 7359 | super->orom->dpa); |
73408129 LM |
7360 | return 0; |
7361 | } | |
7362 | ||
5d500228 | 7363 | /* capabilities of OROM tested - copied from validate_geometry_imsm_volume */ |
660260d0 | 7364 | if (!is_raid_level_supported(super->orom, level, raiddisks)) { |
676e87a8 | 7365 | pr_vrb("platform does not support raid%d with %d disk%s\n", |
6592ce37 DW |
7366 | level, raiddisks, raiddisks > 1 ? "s" : ""); |
7367 | return 0; | |
7368 | } | |
cd9d1ac7 | 7369 | |
7ccc4cc4 | 7370 | if (*chunk == 0 || *chunk == UnSet) |
cd9d1ac7 DW |
7371 | *chunk = imsm_default_chunk(super->orom); |
7372 | ||
7ccc4cc4 | 7373 | if (super->orom && !imsm_orom_has_chunk(super->orom, *chunk)) { |
676e87a8 | 7374 | pr_vrb("platform does not support a chunk size of: %d\n", *chunk); |
cd9d1ac7 | 7375 | return 0; |
6592ce37 | 7376 | } |
cd9d1ac7 | 7377 | |
6592ce37 DW |
7378 | if (layout != imsm_level_to_layout(level)) { |
7379 | if (level == 5) | |
676e87a8 | 7380 | pr_vrb("imsm raid 5 only supports the left-asymmetric layout\n"); |
6592ce37 | 7381 | else if (level == 10) |
676e87a8 | 7382 | pr_vrb("imsm raid 10 only supports the n2 layout\n"); |
6592ce37 | 7383 | else |
676e87a8 | 7384 | pr_vrb("imsm unknown layout %#x for this raid level %d\n", |
6592ce37 DW |
7385 | layout, level); |
7386 | return 0; | |
7387 | } | |
2cc699af | 7388 | |
7ccc4cc4 | 7389 | if (super->orom && (super->orom->attr & IMSM_OROM_ATTR_2TB) == 0 && |
2cc699af | 7390 | (calc_array_size(level, raiddisks, layout, *chunk, size) >> 32) > 0) { |
676e87a8 | 7391 | pr_vrb("platform does not support a volume size over 2TB\n"); |
2cc699af CA |
7392 | return 0; |
7393 | } | |
614902f6 | 7394 | |
6592ce37 DW |
7395 | return 1; |
7396 | } | |
7397 | ||
1011e834 | 7398 | /* validate_geometry_imsm_volume - lifted from validate_geometry_ddf_bvd |
c2c087e6 DW |
7399 | * FIX ME add ahci details |
7400 | */ | |
8b353278 | 7401 | static int validate_geometry_imsm_volume(struct supertype *st, int level, |
c21e737b | 7402 | int layout, int raiddisks, int *chunk, |
af4348dd N |
7403 | unsigned long long size, |
7404 | unsigned long long data_offset, | |
7405 | char *dev, | |
2c514b71 NB |
7406 | unsigned long long *freesize, |
7407 | int verbose) | |
cdddbdbc | 7408 | { |
9e04ac1c | 7409 | dev_t rdev; |
c2c087e6 | 7410 | struct intel_super *super = st->sb; |
b2916f25 | 7411 | struct imsm_super *mpb; |
c2c087e6 DW |
7412 | struct dl *dl; |
7413 | unsigned long long pos = 0; | |
7414 | unsigned long long maxsize; | |
7415 | struct extent *e; | |
7416 | int i; | |
cdddbdbc | 7417 | |
88c32bb1 DW |
7418 | /* We must have the container info already read in. */ |
7419 | if (!super) | |
c2c087e6 DW |
7420 | return 0; |
7421 | ||
b2916f25 JS |
7422 | mpb = super->anchor; |
7423 | ||
2cc699af | 7424 | if (!validate_geometry_imsm_orom(super, level, layout, raiddisks, chunk, size, verbose)) { |
3e684231 | 7425 | pr_err("RAID geometry validation failed. Cannot proceed with the action(s).\n"); |
c2c087e6 | 7426 | return 0; |
d54559f0 | 7427 | } |
c2c087e6 DW |
7428 | if (!dev) { |
7429 | /* General test: make sure there is space for | |
2da8544a DW |
7430 | * 'raiddisks' device extents of size 'size' at a given |
7431 | * offset | |
c2c087e6 | 7432 | */ |
e46273eb | 7433 | unsigned long long minsize = size; |
b7528a20 | 7434 | unsigned long long start_offset = MaxSector; |
c2c087e6 DW |
7435 | int dcnt = 0; |
7436 | if (minsize == 0) | |
7437 | minsize = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; | |
7438 | for (dl = super->disks; dl ; dl = dl->next) { | |
7439 | int found = 0; | |
7440 | ||
bf5a934a | 7441 | pos = 0; |
c2c087e6 | 7442 | i = 0; |
05501181 | 7443 | e = get_extents(super, dl, 0); |
c2c087e6 DW |
7444 | if (!e) continue; |
7445 | do { | |
7446 | unsigned long long esize; | |
7447 | esize = e[i].start - pos; | |
7448 | if (esize >= minsize) | |
7449 | found = 1; | |
b7528a20 | 7450 | if (found && start_offset == MaxSector) { |
2da8544a DW |
7451 | start_offset = pos; |
7452 | break; | |
7453 | } else if (found && pos != start_offset) { | |
7454 | found = 0; | |
7455 | break; | |
7456 | } | |
c2c087e6 DW |
7457 | pos = e[i].start + e[i].size; |
7458 | i++; | |
7459 | } while (e[i-1].size); | |
7460 | if (found) | |
7461 | dcnt++; | |
7462 | free(e); | |
7463 | } | |
7464 | if (dcnt < raiddisks) { | |
2c514b71 | 7465 | if (verbose) |
7a862a02 | 7466 | pr_err("imsm: Not enough devices with space for this array (%d < %d)\n", |
2c514b71 | 7467 | dcnt, raiddisks); |
c2c087e6 DW |
7468 | return 0; |
7469 | } | |
7470 | return 1; | |
7471 | } | |
0dcecb2e | 7472 | |
c2c087e6 | 7473 | /* This device must be a member of the set */ |
9e04ac1c | 7474 | if (!stat_is_blkdev(dev, &rdev)) |
c2c087e6 DW |
7475 | return 0; |
7476 | for (dl = super->disks ; dl ; dl = dl->next) { | |
9e04ac1c ZL |
7477 | if (dl->major == (int)major(rdev) && |
7478 | dl->minor == (int)minor(rdev)) | |
c2c087e6 DW |
7479 | break; |
7480 | } | |
7481 | if (!dl) { | |
2c514b71 | 7482 | if (verbose) |
7a862a02 | 7483 | pr_err("%s is not in the same imsm set\n", dev); |
c2c087e6 | 7484 | return 0; |
a20d2ba5 DW |
7485 | } else if (super->orom && dl->index < 0 && mpb->num_raid_devs) { |
7486 | /* If a volume is present then the current creation attempt | |
7487 | * cannot incorporate new spares because the orom may not | |
7488 | * understand this configuration (all member disks must be | |
7489 | * members of each array in the container). | |
7490 | */ | |
7a862a02 N |
7491 | pr_err("%s is a spare and a volume is already defined for this container\n", dev); |
7492 | pr_err("The option-rom requires all member disks to be a member of all volumes\n"); | |
a20d2ba5 | 7493 | return 0; |
5fe62b94 WD |
7494 | } else if (super->orom && mpb->num_raid_devs > 0 && |
7495 | mpb->num_disks != raiddisks) { | |
7a862a02 | 7496 | pr_err("The option-rom requires all member disks to be a member of all volumes\n"); |
5fe62b94 | 7497 | return 0; |
c2c087e6 | 7498 | } |
0dcecb2e DW |
7499 | |
7500 | /* retrieve the largest free space block */ | |
05501181 | 7501 | e = get_extents(super, dl, 0); |
c2c087e6 DW |
7502 | maxsize = 0; |
7503 | i = 0; | |
0dcecb2e DW |
7504 | if (e) { |
7505 | do { | |
7506 | unsigned long long esize; | |
7507 | ||
7508 | esize = e[i].start - pos; | |
7509 | if (esize >= maxsize) | |
7510 | maxsize = esize; | |
7511 | pos = e[i].start + e[i].size; | |
7512 | i++; | |
7513 | } while (e[i-1].size); | |
7514 | dl->e = e; | |
7515 | dl->extent_cnt = i; | |
7516 | } else { | |
7517 | if (verbose) | |
e7b84f9d | 7518 | pr_err("unable to determine free space for: %s\n", |
0dcecb2e DW |
7519 | dev); |
7520 | return 0; | |
7521 | } | |
7522 | if (maxsize < size) { | |
7523 | if (verbose) | |
e7b84f9d | 7524 | pr_err("%s not enough space (%llu < %llu)\n", |
0dcecb2e DW |
7525 | dev, maxsize, size); |
7526 | return 0; | |
7527 | } | |
7528 | ||
aa19fdd4 | 7529 | maxsize = merge_extents(super, false); |
3baa56ab | 7530 | |
1a1ced1e KS |
7531 | if (mpb->num_raid_devs > 0 && size && size != maxsize) |
7532 | pr_err("attempting to create a second volume with size less then remaining space.\n"); | |
3baa56ab | 7533 | |
a7dd165b | 7534 | if (maxsize < size || maxsize == 0) { |
b3071342 LD |
7535 | if (verbose) { |
7536 | if (maxsize == 0) | |
7a862a02 | 7537 | pr_err("no free space left on device. Aborting...\n"); |
b3071342 | 7538 | else |
7a862a02 | 7539 | pr_err("not enough space to create volume of given size (%llu < %llu). Aborting...\n", |
b3071342 LD |
7540 | maxsize, size); |
7541 | } | |
0dcecb2e | 7542 | return 0; |
0dcecb2e DW |
7543 | } |
7544 | ||
c2c087e6 DW |
7545 | *freesize = maxsize; |
7546 | ||
ca9de185 | 7547 | if (super->orom) { |
72a45777 | 7548 | int count = count_volumes(super->hba, |
ca9de185 LM |
7549 | super->orom->dpa, verbose); |
7550 | if (super->orom->vphba <= count) { | |
676e87a8 | 7551 | pr_vrb("platform does not support more than %d raid volumes.\n", |
ca9de185 LM |
7552 | super->orom->vphba); |
7553 | return 0; | |
7554 | } | |
7555 | } | |
c2c087e6 | 7556 | return 1; |
cdddbdbc DW |
7557 | } |
7558 | ||
6d4d9ab2 MT |
7559 | /** |
7560 | * imsm_get_free_size() - get the biggest, common free space from members. | |
7561 | * @super: &intel_super pointer, not NULL. | |
7562 | * @raiddisks: number of raid disks. | |
7563 | * @size: requested size, could be 0 (means max size). | |
5f027b93 | 7564 | * @chunk: requested chunk size in KiB. |
6d4d9ab2 MT |
7565 | * @freesize: pointer for returned size value. |
7566 | * | |
7567 | * Return: &IMSM_STATUS_OK or &IMSM_STATUS_ERROR. | |
7568 | * | |
7569 | * @freesize is set to meaningful value, this can be @size, or calculated | |
7570 | * max free size. | |
7571 | * super->create_offset value is modified and set appropriately in | |
7572 | * merge_extends() for further creation. | |
7573 | */ | |
7574 | static imsm_status_t imsm_get_free_size(struct intel_super *super, | |
7575 | const int raiddisks, | |
7576 | unsigned long long size, | |
7577 | const int chunk, | |
aa19fdd4 MT |
7578 | unsigned long long *freesize, |
7579 | bool expanding) | |
efb30e7f | 7580 | { |
efb30e7f DW |
7581 | struct imsm_super *mpb = super->anchor; |
7582 | struct dl *dl; | |
7583 | int i; | |
efb30e7f | 7584 | struct extent *e; |
5f027b93 MT |
7585 | int cnt = 0; |
7586 | int used = 0; | |
efb30e7f | 7587 | unsigned long long maxsize; |
5f027b93 MT |
7588 | unsigned long long minsize = size; |
7589 | ||
7590 | if (minsize == 0) | |
7591 | minsize = chunk * 2; | |
efb30e7f DW |
7592 | |
7593 | /* find the largest common start free region of the possible disks */ | |
efb30e7f DW |
7594 | for (dl = super->disks; dl; dl = dl->next) { |
7595 | dl->raiddisk = -1; | |
7596 | ||
7597 | if (dl->index >= 0) | |
7598 | used++; | |
7599 | ||
7600 | /* don't activate new spares if we are orom constrained | |
7601 | * and there is already a volume active in the container | |
7602 | */ | |
7603 | if (super->orom && dl->index < 0 && mpb->num_raid_devs) | |
7604 | continue; | |
7605 | ||
05501181 | 7606 | e = get_extents(super, dl, 0); |
efb30e7f DW |
7607 | if (!e) |
7608 | continue; | |
7609 | for (i = 1; e[i-1].size; i++) | |
7610 | ; | |
7611 | dl->e = e; | |
7612 | dl->extent_cnt = i; | |
efb30e7f DW |
7613 | cnt++; |
7614 | } | |
7615 | ||
aa19fdd4 | 7616 | maxsize = merge_extents(super, expanding); |
5f027b93 MT |
7617 | if (maxsize < minsize) { |
7618 | pr_err("imsm: Free space is %llu but must be equal or larger than %llu.\n", | |
7619 | maxsize, minsize); | |
7620 | return IMSM_STATUS_ERROR; | |
7621 | } | |
efb30e7f | 7622 | |
5f027b93 MT |
7623 | if (cnt < raiddisks || (super->orom && used && used != raiddisks)) { |
7624 | pr_err("imsm: Not enough devices with space to create array.\n"); | |
6d4d9ab2 | 7625 | return IMSM_STATUS_ERROR; |
efb30e7f DW |
7626 | } |
7627 | ||
7628 | if (size == 0) { | |
7629 | size = maxsize; | |
7630 | if (chunk) { | |
612e59d8 CA |
7631 | size /= 2 * chunk; |
7632 | size *= 2 * chunk; | |
efb30e7f | 7633 | } |
f878b242 LM |
7634 | maxsize = size; |
7635 | } | |
1a1ced1e KS |
7636 | if (mpb->num_raid_devs > 0 && size && size != maxsize) |
7637 | pr_err("attempting to create a second volume with size less then remaining space.\n"); | |
efb30e7f DW |
7638 | *freesize = size; |
7639 | ||
13bcac90 AK |
7640 | dprintf("imsm: imsm_get_free_size() returns : %llu\n", size); |
7641 | ||
6d4d9ab2 | 7642 | return IMSM_STATUS_OK; |
efb30e7f DW |
7643 | } |
7644 | ||
6d4d9ab2 MT |
7645 | /** |
7646 | * autolayout_imsm() - automatically layout a new volume. | |
7647 | * @super: &intel_super pointer, not NULL. | |
7648 | * @raiddisks: number of raid disks. | |
7649 | * @size: requested size, could be 0 (means max size). | |
7650 | * @chunk: requested chunk. | |
7651 | * @freesize: pointer for returned size value. | |
7652 | * | |
7653 | * We are being asked to automatically layout a new volume based on the current | |
7654 | * contents of the container. If the parameters can be satisfied autolayout_imsm | |
7655 | * will record the disks, start offset, and will return size of the volume to | |
7656 | * be created. See imsm_get_free_size() for details. | |
7657 | * add_to_super() and getinfo_super() detect when autolayout is in progress. | |
7658 | * If first volume exists, slots are set consistently to it. | |
7659 | * | |
7660 | * Return: &IMSM_STATUS_OK on success, &IMSM_STATUS_ERROR otherwise. | |
7661 | * | |
7662 | * Disks are marked for creation via dl->raiddisk. | |
7663 | */ | |
7664 | static imsm_status_t autolayout_imsm(struct intel_super *super, | |
7665 | const int raiddisks, | |
7666 | unsigned long long size, const int chunk, | |
7667 | unsigned long long *freesize) | |
13bcac90 | 7668 | { |
6d4d9ab2 MT |
7669 | int curr_slot = 0; |
7670 | struct dl *disk; | |
7671 | int vol_cnt = super->anchor->num_raid_devs; | |
7672 | imsm_status_t rv; | |
13bcac90 | 7673 | |
aa19fdd4 | 7674 | rv = imsm_get_free_size(super, raiddisks, size, chunk, freesize, false); |
6d4d9ab2 MT |
7675 | if (rv != IMSM_STATUS_OK) |
7676 | return IMSM_STATUS_ERROR; | |
7677 | ||
7678 | for (disk = super->disks; disk; disk = disk->next) { | |
7679 | if (!disk->e) | |
7680 | continue; | |
7681 | ||
7682 | if (curr_slot == raiddisks) | |
7683 | break; | |
7684 | ||
7685 | if (vol_cnt == 0) { | |
7686 | disk->raiddisk = curr_slot; | |
7687 | } else { | |
7688 | int _slot = get_disk_slot_in_dev(super, 0, disk->index); | |
7689 | ||
7690 | if (_slot == -1) { | |
7691 | pr_err("Disk %s is not used in first volume, aborting\n", | |
7692 | disk->devname); | |
7693 | return IMSM_STATUS_ERROR; | |
7694 | } | |
7695 | disk->raiddisk = _slot; | |
7696 | } | |
7697 | curr_slot++; | |
13bcac90 AK |
7698 | } |
7699 | ||
6d4d9ab2 | 7700 | return IMSM_STATUS_OK; |
13bcac90 AK |
7701 | } |
7702 | ||
bf5a934a | 7703 | static int validate_geometry_imsm(struct supertype *st, int level, int layout, |
c21e737b | 7704 | int raiddisks, int *chunk, unsigned long long size, |
af4348dd | 7705 | unsigned long long data_offset, |
bf5a934a | 7706 | char *dev, unsigned long long *freesize, |
5308f117 | 7707 | int consistency_policy, int verbose) |
bf5a934a DW |
7708 | { |
7709 | int fd, cfd; | |
7710 | struct mdinfo *sra; | |
20cbe8d2 | 7711 | int is_member = 0; |
bf5a934a | 7712 | |
d54559f0 LM |
7713 | /* load capability |
7714 | * if given unused devices create a container | |
bf5a934a DW |
7715 | * if given given devices in a container create a member volume |
7716 | */ | |
6f2af6a4 | 7717 | if (is_container(level)) |
bf5a934a | 7718 | /* Must be a fresh device to add to a container */ |
1f5d54a0 MT |
7719 | return validate_geometry_imsm_container(st, level, raiddisks, |
7720 | data_offset, dev, | |
7721 | freesize, verbose); | |
9587c373 | 7722 | |
06a6101c BK |
7723 | /* |
7724 | * Size is given in sectors. | |
7725 | */ | |
7726 | if (size && (size < 2048)) { | |
22dc741f | 7727 | pr_err("Given size must be greater than 1M.\n"); |
54865c30 RS |
7728 | /* Depends on algorithm in Create.c : |
7729 | * if container was given (dev == NULL) return -1, | |
7730 | * if block device was given ( dev != NULL) return 0. | |
7731 | */ | |
7732 | return dev ? -1 : 0; | |
7733 | } | |
7734 | ||
8592f29d | 7735 | if (!dev) { |
6d4d9ab2 MT |
7736 | struct intel_super *super = st->sb; |
7737 | ||
7738 | /* | |
071f839e | 7739 | * Autolayout mode, st->sb must be set. |
6d4d9ab2 | 7740 | */ |
071f839e KT |
7741 | if (!super) { |
7742 | pr_vrb("superblock must be set for autolayout, aborting\n"); | |
7743 | return 0; | |
6d4d9ab2 MT |
7744 | } |
7745 | ||
7746 | if (!validate_geometry_imsm_orom(st->sb, level, layout, | |
7747 | raiddisks, chunk, size, | |
7748 | verbose)) | |
7749 | return 0; | |
7750 | ||
071f839e | 7751 | if (super->orom && freesize) { |
6d4d9ab2 MT |
7752 | imsm_status_t rv; |
7753 | int count = count_volumes(super->hba, super->orom->dpa, | |
7754 | verbose); | |
7755 | if (super->orom->vphba <= count) { | |
7756 | pr_vrb("platform does not support more than %d raid volumes.\n", | |
7757 | super->orom->vphba); | |
e91a3bad | 7758 | return 0; |
ca9de185 | 7759 | } |
6d4d9ab2 MT |
7760 | |
7761 | rv = autolayout_imsm(super, raiddisks, size, *chunk, | |
7762 | freesize); | |
7763 | if (rv != IMSM_STATUS_OK) | |
7764 | return 0; | |
8592f29d N |
7765 | } |
7766 | return 1; | |
7767 | } | |
bf5a934a DW |
7768 | if (st->sb) { |
7769 | /* creating in a given container */ | |
7770 | return validate_geometry_imsm_volume(st, level, layout, | |
7771 | raiddisks, chunk, size, | |
af4348dd | 7772 | data_offset, |
bf5a934a DW |
7773 | dev, freesize, verbose); |
7774 | } | |
7775 | ||
bf5a934a DW |
7776 | /* This device needs to be a device in an 'imsm' container */ |
7777 | fd = open(dev, O_RDONLY|O_EXCL, 0); | |
4389ce73 MT |
7778 | |
7779 | if (is_fd_valid(fd)) { | |
7780 | pr_vrb("Cannot create this array on device %s\n", dev); | |
bf5a934a DW |
7781 | close(fd); |
7782 | return 0; | |
7783 | } | |
4389ce73 MT |
7784 | if (errno == EBUSY) |
7785 | fd = open(dev, O_RDONLY, 0); | |
7786 | ||
7787 | if (!is_fd_valid(fd)) { | |
7788 | pr_vrb("Cannot open %s: %s\n", dev, strerror(errno)); | |
bf5a934a DW |
7789 | return 0; |
7790 | } | |
4389ce73 | 7791 | |
bf5a934a DW |
7792 | /* Well, it is in use by someone, maybe an 'imsm' container. */ |
7793 | cfd = open_container(fd); | |
4389ce73 MT |
7794 | close_fd(&fd); |
7795 | ||
7796 | if (!is_fd_valid(cfd)) { | |
7797 | pr_vrb("Cannot use %s: It is busy\n", dev); | |
bf5a934a DW |
7798 | return 0; |
7799 | } | |
4dd2df09 | 7800 | sra = sysfs_read(cfd, NULL, GET_VERSION); |
bf5a934a | 7801 | if (sra && sra->array.major_version == -1 && |
20cbe8d2 AW |
7802 | strcmp(sra->text_version, "imsm") == 0) |
7803 | is_member = 1; | |
7804 | sysfs_free(sra); | |
7805 | if (is_member) { | |
bf5a934a DW |
7806 | /* This is a member of a imsm container. Load the container |
7807 | * and try to create a volume | |
7808 | */ | |
7809 | struct intel_super *super; | |
7810 | ||
ec50f7b6 | 7811 | if (load_super_imsm_all(st, cfd, (void **) &super, NULL, NULL, 1) == 0) { |
bf5a934a | 7812 | st->sb = super; |
4dd2df09 | 7813 | strcpy(st->container_devnm, fd2devnm(cfd)); |
bf5a934a DW |
7814 | close(cfd); |
7815 | return validate_geometry_imsm_volume(st, level, layout, | |
7816 | raiddisks, chunk, | |
af4348dd | 7817 | size, data_offset, dev, |
ecbd9e81 N |
7818 | freesize, 1) |
7819 | ? 1 : -1; | |
bf5a934a | 7820 | } |
20cbe8d2 | 7821 | } |
bf5a934a | 7822 | |
20cbe8d2 | 7823 | if (verbose) |
e7b84f9d | 7824 | pr_err("failed container membership check\n"); |
20cbe8d2 AW |
7825 | |
7826 | close(cfd); | |
7827 | return 0; | |
bf5a934a | 7828 | } |
0bd16cf2 | 7829 | |
30f58b22 | 7830 | static void default_geometry_imsm(struct supertype *st, int *level, int *layout, int *chunk) |
0bd16cf2 DJ |
7831 | { |
7832 | struct intel_super *super = st->sb; | |
7833 | ||
30f58b22 DW |
7834 | if (level && *level == UnSet) |
7835 | *level = LEVEL_CONTAINER; | |
7836 | ||
7837 | if (level && layout && *layout == UnSet) | |
7838 | *layout = imsm_level_to_layout(*level); | |
0bd16cf2 | 7839 | |
cd9d1ac7 DW |
7840 | if (chunk && (*chunk == UnSet || *chunk == 0)) |
7841 | *chunk = imsm_default_chunk(super->orom); | |
0bd16cf2 DJ |
7842 | } |
7843 | ||
33414a01 DW |
7844 | static void handle_missing(struct intel_super *super, struct imsm_dev *dev); |
7845 | ||
3364781b | 7846 | static int kill_subarray_imsm(struct supertype *st, char *subarray_id) |
33414a01 | 7847 | { |
3364781b | 7848 | /* remove the subarray currently referenced by subarray_id */ |
33414a01 DW |
7849 | __u8 i; |
7850 | struct intel_dev **dp; | |
7851 | struct intel_super *super = st->sb; | |
3364781b | 7852 | __u8 current_vol = strtoul(subarray_id, NULL, 10); |
33414a01 DW |
7853 | struct imsm_super *mpb = super->anchor; |
7854 | ||
3364781b | 7855 | if (mpb->num_raid_devs == 0) |
33414a01 | 7856 | return 2; |
33414a01 DW |
7857 | |
7858 | /* block deletions that would change the uuid of active subarrays | |
7859 | * | |
7860 | * FIXME when immutable ids are available, but note that we'll | |
7861 | * also need to fixup the invalidated/active subarray indexes in | |
7862 | * mdstat | |
7863 | */ | |
7864 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
7865 | char subarray[4]; | |
7866 | ||
7867 | if (i < current_vol) | |
7868 | continue; | |
dd5ab402 | 7869 | snprintf(subarray, sizeof(subarray), "%u", i); |
4dd2df09 | 7870 | if (is_subarray_active(subarray, st->devnm)) { |
e7b84f9d N |
7871 | pr_err("deleting subarray-%d would change the UUID of active subarray-%d, aborting\n", |
7872 | current_vol, i); | |
33414a01 DW |
7873 | |
7874 | return 2; | |
7875 | } | |
7876 | } | |
7877 | ||
7878 | if (st->update_tail) { | |
503975b9 | 7879 | struct imsm_update_kill_array *u = xmalloc(sizeof(*u)); |
33414a01 | 7880 | |
33414a01 DW |
7881 | u->type = update_kill_array; |
7882 | u->dev_idx = current_vol; | |
7883 | append_metadata_update(st, u, sizeof(*u)); | |
7884 | ||
7885 | return 0; | |
7886 | } | |
7887 | ||
7888 | for (dp = &super->devlist; *dp;) | |
7889 | if ((*dp)->index == current_vol) { | |
7890 | *dp = (*dp)->next; | |
7891 | } else { | |
7892 | handle_missing(super, (*dp)->dev); | |
7893 | if ((*dp)->index > current_vol) | |
7894 | (*dp)->index--; | |
7895 | dp = &(*dp)->next; | |
7896 | } | |
7897 | ||
7898 | /* no more raid devices, all active components are now spares, | |
7899 | * but of course failed are still failed | |
7900 | */ | |
7901 | if (--mpb->num_raid_devs == 0) { | |
7902 | struct dl *d; | |
7903 | ||
7904 | for (d = super->disks; d; d = d->next) | |
a8619d23 AK |
7905 | if (d->index > -2) |
7906 | mark_spare(d); | |
33414a01 DW |
7907 | } |
7908 | ||
7909 | super->updates_pending++; | |
7910 | ||
7911 | return 0; | |
7912 | } | |
aa534678 | 7913 | |
4345e135 MK |
7914 | /** |
7915 | * get_rwh_policy_from_update() - Get the rwh policy for update option. | |
7916 | * @update: Update option. | |
7917 | */ | |
7918 | static int get_rwh_policy_from_update(enum update_opt update) | |
19ad203e | 7919 | { |
4345e135 MK |
7920 | switch (update) { |
7921 | case UOPT_PPL: | |
19ad203e | 7922 | return RWH_MULTIPLE_DISTRIBUTED; |
4345e135 | 7923 | case UOPT_NO_PPL: |
19ad203e | 7924 | return RWH_MULTIPLE_OFF; |
4345e135 | 7925 | case UOPT_BITMAP: |
19ad203e | 7926 | return RWH_BITMAP; |
4345e135 | 7927 | case UOPT_NO_BITMAP: |
19ad203e | 7928 | return RWH_OFF; |
4345e135 MK |
7929 | default: |
7930 | break; | |
7931 | } | |
7932 | return UOPT_UNDEFINED; | |
19ad203e JR |
7933 | } |
7934 | ||
a951a4f7 | 7935 | static int update_subarray_imsm(struct supertype *st, char *subarray, |
03312b52 | 7936 | enum update_opt update, struct mddev_ident *ident) |
aa534678 DW |
7937 | { |
7938 | /* update the subarray currently referenced by ->current_vol */ | |
7939 | struct intel_super *super = st->sb; | |
7940 | struct imsm_super *mpb = super->anchor; | |
7941 | ||
03312b52 | 7942 | if (update == UOPT_NAME) { |
aa534678 | 7943 | char *name = ident->name; |
a951a4f7 N |
7944 | char *ep; |
7945 | int vol; | |
aa534678 | 7946 | |
e2eb503b | 7947 | if (imsm_is_name_allowed(super, name, 1) == false) |
aa534678 DW |
7948 | return 2; |
7949 | ||
a951a4f7 N |
7950 | vol = strtoul(subarray, &ep, 10); |
7951 | if (*ep != '\0' || vol >= super->anchor->num_raid_devs) | |
7952 | return 2; | |
7953 | ||
aa534678 | 7954 | if (st->update_tail) { |
503975b9 | 7955 | struct imsm_update_rename_array *u = xmalloc(sizeof(*u)); |
aa534678 | 7956 | |
aa534678 | 7957 | u->type = update_rename_array; |
a951a4f7 | 7958 | u->dev_idx = vol; |
618f4e6d XN |
7959 | strncpy((char *) u->name, name, MAX_RAID_SERIAL_LEN); |
7960 | u->name[MAX_RAID_SERIAL_LEN-1] = '\0'; | |
aa534678 DW |
7961 | append_metadata_update(st, u, sizeof(*u)); |
7962 | } else { | |
7963 | struct imsm_dev *dev; | |
ebad3af2 | 7964 | int i, namelen; |
aa534678 | 7965 | |
a951a4f7 | 7966 | dev = get_imsm_dev(super, vol); |
ebad3af2 JS |
7967 | memset(dev->volume, '\0', MAX_RAID_SERIAL_LEN); |
7968 | namelen = min((int)strlen(name), MAX_RAID_SERIAL_LEN); | |
7969 | memcpy(dev->volume, name, namelen); | |
aa534678 DW |
7970 | for (i = 0; i < mpb->num_raid_devs; i++) { |
7971 | dev = get_imsm_dev(super, i); | |
7972 | handle_missing(super, dev); | |
7973 | } | |
7974 | super->updates_pending++; | |
7975 | } | |
03312b52 | 7976 | } else if (get_rwh_policy_from_update(update) != UOPT_UNDEFINED) { |
e6e9dd3f AP |
7977 | int new_policy; |
7978 | char *ep; | |
7979 | int vol = strtoul(subarray, &ep, 10); | |
7980 | ||
7981 | if (*ep != '\0' || vol >= super->anchor->num_raid_devs) | |
7982 | return 2; | |
7983 | ||
03312b52 | 7984 | new_policy = get_rwh_policy_from_update(update); |
e6e9dd3f AP |
7985 | |
7986 | if (st->update_tail) { | |
7987 | struct imsm_update_rwh_policy *u = xmalloc(sizeof(*u)); | |
7988 | ||
7989 | u->type = update_rwh_policy; | |
7990 | u->dev_idx = vol; | |
7991 | u->new_policy = new_policy; | |
7992 | append_metadata_update(st, u, sizeof(*u)); | |
7993 | } else { | |
7994 | struct imsm_dev *dev; | |
7995 | ||
7996 | dev = get_imsm_dev(super, vol); | |
7997 | dev->rwh_policy = new_policy; | |
7998 | super->updates_pending++; | |
7999 | } | |
19ad203e JR |
8000 | if (new_policy == RWH_BITMAP) |
8001 | return write_init_bitmap_imsm_vol(st, vol); | |
aa534678 DW |
8002 | } else |
8003 | return 2; | |
8004 | ||
8005 | return 0; | |
8006 | } | |
bf5a934a | 8007 | |
195d1d76 | 8008 | static bool is_gen_migration(struct imsm_dev *dev) |
28bce06f | 8009 | { |
195d1d76 PP |
8010 | if (dev && dev->vol.migr_state && |
8011 | migr_type(dev) == MIGR_GEN_MIGR) | |
8012 | return true; | |
28bce06f | 8013 | |
195d1d76 | 8014 | return false; |
28bce06f AK |
8015 | } |
8016 | ||
1e5c6983 DW |
8017 | static int is_rebuilding(struct imsm_dev *dev) |
8018 | { | |
8019 | struct imsm_map *migr_map; | |
8020 | ||
8021 | if (!dev->vol.migr_state) | |
8022 | return 0; | |
8023 | ||
8024 | if (migr_type(dev) != MIGR_REBUILD) | |
8025 | return 0; | |
8026 | ||
238c0a71 | 8027 | migr_map = get_imsm_map(dev, MAP_1); |
1e5c6983 DW |
8028 | |
8029 | if (migr_map->map_state == IMSM_T_STATE_DEGRADED) | |
8030 | return 1; | |
8031 | else | |
8032 | return 0; | |
8033 | } | |
8034 | ||
6ce1fbf1 AK |
8035 | static int is_initializing(struct imsm_dev *dev) |
8036 | { | |
8037 | struct imsm_map *migr_map; | |
8038 | ||
8039 | if (!dev->vol.migr_state) | |
8040 | return 0; | |
8041 | ||
8042 | if (migr_type(dev) != MIGR_INIT) | |
8043 | return 0; | |
8044 | ||
238c0a71 | 8045 | migr_map = get_imsm_map(dev, MAP_1); |
6ce1fbf1 AK |
8046 | |
8047 | if (migr_map->map_state == IMSM_T_STATE_UNINITIALIZED) | |
8048 | return 1; | |
8049 | ||
8050 | return 0; | |
6ce1fbf1 AK |
8051 | } |
8052 | ||
c47b0ff6 AK |
8053 | static void update_recovery_start(struct intel_super *super, |
8054 | struct imsm_dev *dev, | |
8055 | struct mdinfo *array) | |
1e5c6983 DW |
8056 | { |
8057 | struct mdinfo *rebuild = NULL; | |
8058 | struct mdinfo *d; | |
8059 | __u32 units; | |
8060 | ||
8061 | if (!is_rebuilding(dev)) | |
8062 | return; | |
8063 | ||
8064 | /* Find the rebuild target, but punt on the dual rebuild case */ | |
8065 | for (d = array->devs; d; d = d->next) | |
8066 | if (d->recovery_start == 0) { | |
8067 | if (rebuild) | |
8068 | return; | |
8069 | rebuild = d; | |
8070 | } | |
8071 | ||
4363fd80 DW |
8072 | if (!rebuild) { |
8073 | /* (?) none of the disks are marked with | |
8074 | * IMSM_ORD_REBUILD, so assume they are missing and the | |
8075 | * disk_ord_tbl was not correctly updated | |
8076 | */ | |
1ade5cc1 | 8077 | dprintf("failed to locate out-of-sync disk\n"); |
4363fd80 DW |
8078 | return; |
8079 | } | |
8080 | ||
4036e7ee | 8081 | units = vol_curr_migr_unit(dev); |
c47b0ff6 | 8082 | rebuild->recovery_start = units * blocks_per_migr_unit(super, dev); |
1e5c6983 DW |
8083 | } |
8084 | ||
276d77db | 8085 | static int recover_backup_imsm(struct supertype *st, struct mdinfo *info); |
1e5c6983 | 8086 | |
00bbdbda | 8087 | static struct mdinfo *container_content_imsm(struct supertype *st, char *subarray) |
cdddbdbc | 8088 | { |
4f5bc454 DW |
8089 | /* Given a container loaded by load_super_imsm_all, |
8090 | * extract information about all the arrays into | |
8091 | * an mdinfo tree. | |
00bbdbda | 8092 | * If 'subarray' is given, just extract info about that array. |
4f5bc454 DW |
8093 | * |
8094 | * For each imsm_dev create an mdinfo, fill it in, | |
8095 | * then look for matching devices in super->disks | |
8096 | * and create appropriate device mdinfo. | |
8097 | */ | |
8098 | struct intel_super *super = st->sb; | |
949c47a0 | 8099 | struct imsm_super *mpb = super->anchor; |
4f5bc454 | 8100 | struct mdinfo *rest = NULL; |
00bbdbda | 8101 | unsigned int i; |
81219e70 | 8102 | int sb_errors = 0; |
abef11a3 AK |
8103 | struct dl *d; |
8104 | int spare_disks = 0; | |
b6180160 | 8105 | int current_vol = super->current_vol; |
cdddbdbc | 8106 | |
19482bcc AK |
8107 | /* do not assemble arrays when not all attributes are supported */ |
8108 | if (imsm_check_attributes(mpb->attributes) == 0) { | |
81219e70 | 8109 | sb_errors = 1; |
7a862a02 | 8110 | pr_err("Unsupported attributes in IMSM metadata.Arrays activation is blocked.\n"); |
19482bcc AK |
8111 | } |
8112 | ||
abef11a3 AK |
8113 | /* count spare devices, not used in maps |
8114 | */ | |
8115 | for (d = super->disks; d; d = d->next) | |
8116 | if (d->index == -1) | |
8117 | spare_disks++; | |
8118 | ||
4f5bc454 | 8119 | for (i = 0; i < mpb->num_raid_devs; i++) { |
00bbdbda N |
8120 | struct imsm_dev *dev; |
8121 | struct imsm_map *map; | |
86e3692b | 8122 | struct imsm_map *map2; |
4f5bc454 | 8123 | struct mdinfo *this; |
a6482415 | 8124 | int slot; |
a6482415 | 8125 | int chunk; |
00bbdbda | 8126 | char *ep; |
8b9cd157 | 8127 | int level; |
00bbdbda N |
8128 | |
8129 | if (subarray && | |
8130 | (i != strtoul(subarray, &ep, 10) || *ep != '\0')) | |
8131 | continue; | |
8132 | ||
8133 | dev = get_imsm_dev(super, i); | |
238c0a71 AK |
8134 | map = get_imsm_map(dev, MAP_0); |
8135 | map2 = get_imsm_map(dev, MAP_1); | |
8b9cd157 | 8136 | level = get_imsm_raid_level(map); |
4f5bc454 | 8137 | |
1ce0101c DW |
8138 | /* do not publish arrays that are in the middle of an |
8139 | * unsupported migration | |
8140 | */ | |
8141 | if (dev->vol.migr_state && | |
28bce06f | 8142 | (migr_type(dev) == MIGR_STATE_CHANGE)) { |
7a862a02 | 8143 | pr_err("cannot assemble volume '%.16s': unsupported migration in progress\n", |
1ce0101c DW |
8144 | dev->volume); |
8145 | continue; | |
8146 | } | |
2db86302 LM |
8147 | /* do not publish arrays that are not support by controller's |
8148 | * OROM/EFI | |
8149 | */ | |
1ce0101c | 8150 | |
503975b9 | 8151 | this = xmalloc(sizeof(*this)); |
4f5bc454 | 8152 | |
301406c9 | 8153 | super->current_vol = i; |
a5d85af7 | 8154 | getinfo_super_imsm_volume(st, this, NULL); |
9894ec0d | 8155 | this->next = rest; |
a6482415 | 8156 | chunk = __le16_to_cpu(map->blocks_per_strip) >> 1; |
81219e70 LM |
8157 | /* mdadm does not support all metadata features- set the bit in all arrays state */ |
8158 | if (!validate_geometry_imsm_orom(super, | |
8b9cd157 MK |
8159 | level, /* RAID level */ |
8160 | imsm_level_to_layout(level), | |
81219e70 | 8161 | map->num_members, /* raid disks */ |
fcc2c9da | 8162 | &chunk, imsm_dev_size(dev), |
81219e70 | 8163 | 1 /* verbose */)) { |
7a862a02 | 8164 | pr_err("IMSM RAID geometry validation failed. Array %s activation is blocked.\n", |
81219e70 LM |
8165 | dev->volume); |
8166 | this->array.state |= | |
8167 | (1<<MD_SB_BLOCK_CONTAINER_RESHAPE) | | |
8168 | (1<<MD_SB_BLOCK_VOLUME); | |
8169 | } | |
81219e70 LM |
8170 | |
8171 | /* if array has bad blocks, set suitable bit in all arrays state */ | |
8172 | if (sb_errors) | |
8173 | this->array.state |= | |
8174 | (1<<MD_SB_BLOCK_CONTAINER_RESHAPE) | | |
8175 | (1<<MD_SB_BLOCK_VOLUME); | |
8176 | ||
4f5bc454 | 8177 | for (slot = 0 ; slot < map->num_members; slot++) { |
1e5c6983 | 8178 | unsigned long long recovery_start; |
4f5bc454 DW |
8179 | struct mdinfo *info_d; |
8180 | struct dl *d; | |
8181 | int idx; | |
9a1608e5 | 8182 | int skip; |
7eef0453 | 8183 | __u32 ord; |
8b9cd157 | 8184 | int missing = 0; |
4f5bc454 | 8185 | |
9a1608e5 | 8186 | skip = 0; |
238c0a71 AK |
8187 | idx = get_imsm_disk_idx(dev, slot, MAP_0); |
8188 | ord = get_imsm_ord_tbl_ent(dev, slot, MAP_X); | |
4f5bc454 DW |
8189 | for (d = super->disks; d ; d = d->next) |
8190 | if (d->index == idx) | |
0fbd635c | 8191 | break; |
4f5bc454 | 8192 | |
1e5c6983 | 8193 | recovery_start = MaxSector; |
4f5bc454 | 8194 | if (d == NULL) |
9a1608e5 | 8195 | skip = 1; |
25ed7e59 | 8196 | if (d && is_failed(&d->disk)) |
9a1608e5 | 8197 | skip = 1; |
8b9cd157 | 8198 | if (!skip && (ord & IMSM_ORD_REBUILD)) |
1e5c6983 | 8199 | recovery_start = 0; |
1e93d0d1 BK |
8200 | if (!(ord & IMSM_ORD_REBUILD)) |
8201 | this->array.working_disks++; | |
1011e834 | 8202 | /* |
9a1608e5 | 8203 | * if we skip some disks the array will be assmebled degraded; |
1e5c6983 DW |
8204 | * reset resync start to avoid a dirty-degraded |
8205 | * situation when performing the intial sync | |
9a1608e5 | 8206 | */ |
8b9cd157 MK |
8207 | if (skip) |
8208 | missing++; | |
8209 | ||
8210 | if (!(dev->vol.dirty & RAIDVOL_DIRTY)) { | |
8211 | if ((!able_to_resync(level, missing) || | |
8212 | recovery_start == 0)) | |
8213 | this->resync_start = MaxSector; | |
8b9cd157 MK |
8214 | } |
8215 | ||
9a1608e5 DW |
8216 | if (skip) |
8217 | continue; | |
4f5bc454 | 8218 | |
503975b9 | 8219 | info_d = xcalloc(1, sizeof(*info_d)); |
4f5bc454 DW |
8220 | info_d->next = this->devs; |
8221 | this->devs = info_d; | |
8222 | ||
4f5bc454 DW |
8223 | info_d->disk.number = d->index; |
8224 | info_d->disk.major = d->major; | |
8225 | info_d->disk.minor = d->minor; | |
8226 | info_d->disk.raid_disk = slot; | |
1e5c6983 | 8227 | info_d->recovery_start = recovery_start; |
86e3692b AK |
8228 | if (map2) { |
8229 | if (slot < map2->num_members) | |
8230 | info_d->disk.state = (1 << MD_DISK_ACTIVE); | |
04c3c514 AK |
8231 | else |
8232 | this->array.spare_disks++; | |
86e3692b AK |
8233 | } else { |
8234 | if (slot < map->num_members) | |
8235 | info_d->disk.state = (1 << MD_DISK_ACTIVE); | |
04c3c514 AK |
8236 | else |
8237 | this->array.spare_disks++; | |
86e3692b | 8238 | } |
4f5bc454 DW |
8239 | |
8240 | info_d->events = __le32_to_cpu(mpb->generation_num); | |
5551b113 | 8241 | info_d->data_offset = pba_of_lba0(map); |
44490938 | 8242 | info_d->component_size = calc_component_size(map, dev); |
06fb291a PB |
8243 | |
8244 | if (map->raid_level == 5) { | |
2432ce9b AP |
8245 | info_d->ppl_sector = this->ppl_sector; |
8246 | info_d->ppl_size = this->ppl_size; | |
98e96bdb AP |
8247 | if (this->consistency_policy == CONSISTENCY_POLICY_PPL && |
8248 | recovery_start == 0) | |
8249 | this->resync_start = 0; | |
06fb291a | 8250 | } |
b12796be | 8251 | |
5e46202e | 8252 | info_d->bb.supported = 1; |
b12796be TM |
8253 | get_volume_badblocks(super->bbm_log, ord_to_idx(ord), |
8254 | info_d->data_offset, | |
8255 | info_d->component_size, | |
8256 | &info_d->bb); | |
4f5bc454 | 8257 | } |
1e5c6983 | 8258 | /* now that the disk list is up-to-date fixup recovery_start */ |
c47b0ff6 | 8259 | update_recovery_start(super, dev, this); |
abef11a3 | 8260 | this->array.spare_disks += spare_disks; |
276d77db AK |
8261 | |
8262 | /* check for reshape */ | |
8263 | if (this->reshape_active == 1) | |
8264 | recover_backup_imsm(st, this); | |
9a1608e5 | 8265 | rest = this; |
4f5bc454 DW |
8266 | } |
8267 | ||
b6180160 | 8268 | super->current_vol = current_vol; |
4f5bc454 | 8269 | return rest; |
cdddbdbc DW |
8270 | } |
8271 | ||
3b451610 AK |
8272 | static __u8 imsm_check_degraded(struct intel_super *super, struct imsm_dev *dev, |
8273 | int failed, int look_in_map) | |
c2a1e7da | 8274 | { |
3b451610 AK |
8275 | struct imsm_map *map; |
8276 | ||
8277 | map = get_imsm_map(dev, look_in_map); | |
c2a1e7da DW |
8278 | |
8279 | if (!failed) | |
1011e834 | 8280 | return map->map_state == IMSM_T_STATE_UNINITIALIZED ? |
3393c6af | 8281 | IMSM_T_STATE_UNINITIALIZED : IMSM_T_STATE_NORMAL; |
c2a1e7da DW |
8282 | |
8283 | switch (get_imsm_raid_level(map)) { | |
8284 | case 0: | |
8285 | return IMSM_T_STATE_FAILED; | |
8286 | break; | |
8287 | case 1: | |
8288 | if (failed < map->num_members) | |
8289 | return IMSM_T_STATE_DEGRADED; | |
8290 | else | |
8291 | return IMSM_T_STATE_FAILED; | |
8292 | break; | |
8293 | case 10: | |
8294 | { | |
8295 | /** | |
c92a2527 DW |
8296 | * check to see if any mirrors have failed, otherwise we |
8297 | * are degraded. Even numbered slots are mirrored on | |
8298 | * slot+1 | |
c2a1e7da | 8299 | */ |
c2a1e7da | 8300 | int i; |
d9b420a5 N |
8301 | /* gcc -Os complains that this is unused */ |
8302 | int insync = insync; | |
c2a1e7da DW |
8303 | |
8304 | for (i = 0; i < map->num_members; i++) { | |
238c0a71 | 8305 | __u32 ord = get_imsm_ord_tbl_ent(dev, i, MAP_X); |
c92a2527 DW |
8306 | int idx = ord_to_idx(ord); |
8307 | struct imsm_disk *disk; | |
c2a1e7da | 8308 | |
c92a2527 | 8309 | /* reset the potential in-sync count on even-numbered |
1011e834 | 8310 | * slots. num_copies is always 2 for imsm raid10 |
c92a2527 DW |
8311 | */ |
8312 | if ((i & 1) == 0) | |
8313 | insync = 2; | |
c2a1e7da | 8314 | |
c92a2527 | 8315 | disk = get_imsm_disk(super, idx); |
25ed7e59 | 8316 | if (!disk || is_failed(disk) || ord & IMSM_ORD_REBUILD) |
c92a2527 | 8317 | insync--; |
c2a1e7da | 8318 | |
c92a2527 DW |
8319 | /* no in-sync disks left in this mirror the |
8320 | * array has failed | |
8321 | */ | |
8322 | if (insync == 0) | |
8323 | return IMSM_T_STATE_FAILED; | |
c2a1e7da DW |
8324 | } |
8325 | ||
8326 | return IMSM_T_STATE_DEGRADED; | |
8327 | } | |
8328 | case 5: | |
8329 | if (failed < 2) | |
8330 | return IMSM_T_STATE_DEGRADED; | |
8331 | else | |
8332 | return IMSM_T_STATE_FAILED; | |
8333 | break; | |
8334 | default: | |
8335 | break; | |
8336 | } | |
8337 | ||
8338 | return map->map_state; | |
8339 | } | |
8340 | ||
3b451610 AK |
8341 | static int imsm_count_failed(struct intel_super *super, struct imsm_dev *dev, |
8342 | int look_in_map) | |
c2a1e7da DW |
8343 | { |
8344 | int i; | |
8345 | int failed = 0; | |
8346 | struct imsm_disk *disk; | |
d5985138 AK |
8347 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
8348 | struct imsm_map *prev = get_imsm_map(dev, MAP_1); | |
68fe4598 | 8349 | struct imsm_map *map_for_loop; |
0556e1a2 DW |
8350 | __u32 ord; |
8351 | int idx; | |
d5985138 | 8352 | int idx_1; |
c2a1e7da | 8353 | |
0556e1a2 DW |
8354 | /* at the beginning of migration we set IMSM_ORD_REBUILD on |
8355 | * disks that are being rebuilt. New failures are recorded to | |
8356 | * map[0]. So we look through all the disks we started with and | |
8357 | * see if any failures are still present, or if any new ones | |
8358 | * have arrived | |
0556e1a2 | 8359 | */ |
d5985138 AK |
8360 | map_for_loop = map; |
8361 | if (prev && (map->num_members < prev->num_members)) | |
8362 | map_for_loop = prev; | |
68fe4598 LD |
8363 | |
8364 | for (i = 0; i < map_for_loop->num_members; i++) { | |
d5985138 | 8365 | idx_1 = -255; |
238c0a71 AK |
8366 | /* when MAP_X is passed both maps failures are counted |
8367 | */ | |
d5985138 | 8368 | if (prev && |
089f9d79 JS |
8369 | (look_in_map == MAP_1 || look_in_map == MAP_X) && |
8370 | i < prev->num_members) { | |
d5985138 AK |
8371 | ord = __le32_to_cpu(prev->disk_ord_tbl[i]); |
8372 | idx_1 = ord_to_idx(ord); | |
c2a1e7da | 8373 | |
d5985138 AK |
8374 | disk = get_imsm_disk(super, idx_1); |
8375 | if (!disk || is_failed(disk) || ord & IMSM_ORD_REBUILD) | |
8376 | failed++; | |
8377 | } | |
089f9d79 JS |
8378 | if ((look_in_map == MAP_0 || look_in_map == MAP_X) && |
8379 | i < map->num_members) { | |
d5985138 AK |
8380 | ord = __le32_to_cpu(map->disk_ord_tbl[i]); |
8381 | idx = ord_to_idx(ord); | |
8382 | ||
8383 | if (idx != idx_1) { | |
8384 | disk = get_imsm_disk(super, idx); | |
8385 | if (!disk || is_failed(disk) || | |
8386 | ord & IMSM_ORD_REBUILD) | |
8387 | failed++; | |
8388 | } | |
8389 | } | |
c2a1e7da DW |
8390 | } |
8391 | ||
8392 | return failed; | |
845dea95 NB |
8393 | } |
8394 | ||
97b4d0e9 | 8395 | static int imsm_open_new(struct supertype *c, struct active_array *a, |
60815698 | 8396 | int inst) |
97b4d0e9 DW |
8397 | { |
8398 | struct intel_super *super = c->sb; | |
8399 | struct imsm_super *mpb = super->anchor; | |
bbab0940 | 8400 | struct imsm_update_prealloc_bb_mem u; |
9587c373 | 8401 | |
60815698 MG |
8402 | if (inst >= mpb->num_raid_devs) { |
8403 | pr_err("subarry index %d, out of range\n", inst); | |
97b4d0e9 DW |
8404 | return -ENODEV; |
8405 | } | |
8406 | ||
60815698 MG |
8407 | dprintf("imsm: open_new %d\n", inst); |
8408 | a->info.container_member = inst; | |
bbab0940 TM |
8409 | |
8410 | u.type = update_prealloc_badblocks_mem; | |
8411 | imsm_update_metadata_locally(c, &u, sizeof(u)); | |
8412 | ||
97b4d0e9 DW |
8413 | return 0; |
8414 | } | |
8415 | ||
0c046afd DW |
8416 | static int is_resyncing(struct imsm_dev *dev) |
8417 | { | |
8418 | struct imsm_map *migr_map; | |
8419 | ||
8420 | if (!dev->vol.migr_state) | |
8421 | return 0; | |
8422 | ||
1484e727 DW |
8423 | if (migr_type(dev) == MIGR_INIT || |
8424 | migr_type(dev) == MIGR_REPAIR) | |
0c046afd DW |
8425 | return 1; |
8426 | ||
4c9bc37b AK |
8427 | if (migr_type(dev) == MIGR_GEN_MIGR) |
8428 | return 0; | |
8429 | ||
238c0a71 | 8430 | migr_map = get_imsm_map(dev, MAP_1); |
0c046afd | 8431 | |
089f9d79 JS |
8432 | if (migr_map->map_state == IMSM_T_STATE_NORMAL && |
8433 | dev->vol.migr_type != MIGR_GEN_MIGR) | |
0c046afd DW |
8434 | return 1; |
8435 | else | |
8436 | return 0; | |
8437 | } | |
8438 | ||
0556e1a2 | 8439 | /* return true if we recorded new information */ |
4c9e8c1e TM |
8440 | static int mark_failure(struct intel_super *super, |
8441 | struct imsm_dev *dev, struct imsm_disk *disk, int idx) | |
47ee5a45 | 8442 | { |
0556e1a2 DW |
8443 | __u32 ord; |
8444 | int slot; | |
8445 | struct imsm_map *map; | |
86c54047 DW |
8446 | char buf[MAX_RAID_SERIAL_LEN+3]; |
8447 | unsigned int len, shift = 0; | |
0556e1a2 DW |
8448 | |
8449 | /* new failures are always set in map[0] */ | |
238c0a71 | 8450 | map = get_imsm_map(dev, MAP_0); |
0556e1a2 DW |
8451 | |
8452 | slot = get_imsm_disk_slot(map, idx); | |
8453 | if (slot < 0) | |
8454 | return 0; | |
8455 | ||
8456 | ord = __le32_to_cpu(map->disk_ord_tbl[slot]); | |
25ed7e59 | 8457 | if (is_failed(disk) && (ord & IMSM_ORD_REBUILD)) |
0556e1a2 DW |
8458 | return 0; |
8459 | ||
7d0c5e24 LD |
8460 | memcpy(buf, disk->serial, MAX_RAID_SERIAL_LEN); |
8461 | buf[MAX_RAID_SERIAL_LEN] = '\000'; | |
8462 | strcat(buf, ":0"); | |
86c54047 DW |
8463 | if ((len = strlen(buf)) >= MAX_RAID_SERIAL_LEN) |
8464 | shift = len - MAX_RAID_SERIAL_LEN + 1; | |
167d8bb8 | 8465 | memcpy(disk->serial, &buf[shift], len + 1 - shift); |
86c54047 | 8466 | |
f2f27e63 | 8467 | disk->status |= FAILED_DISK; |
0556e1a2 | 8468 | set_imsm_ord_tbl_ent(map, slot, idx | IMSM_ORD_REBUILD); |
17788994 AK |
8469 | /* mark failures in second map if second map exists and this disk |
8470 | * in this slot. | |
8471 | * This is valid for migration, initialization and rebuild | |
8472 | */ | |
8473 | if (dev->vol.migr_state) { | |
238c0a71 | 8474 | struct imsm_map *map2 = get_imsm_map(dev, MAP_1); |
0a108d63 AK |
8475 | int slot2 = get_imsm_disk_slot(map2, idx); |
8476 | ||
089f9d79 | 8477 | if (slot2 < map2->num_members && slot2 >= 0) |
0a108d63 | 8478 | set_imsm_ord_tbl_ent(map2, slot2, |
1ace8403 AK |
8479 | idx | IMSM_ORD_REBUILD); |
8480 | } | |
d7a1fda2 MT |
8481 | if (map->failed_disk_num == 0xff || |
8482 | (!is_rebuilding(dev) && map->failed_disk_num > slot)) | |
0556e1a2 | 8483 | map->failed_disk_num = slot; |
4c9e8c1e TM |
8484 | |
8485 | clear_disk_badblocks(super->bbm_log, ord_to_idx(ord)); | |
8486 | ||
0556e1a2 DW |
8487 | return 1; |
8488 | } | |
8489 | ||
4c9e8c1e TM |
8490 | static void mark_missing(struct intel_super *super, |
8491 | struct imsm_dev *dev, struct imsm_disk *disk, int idx) | |
0556e1a2 | 8492 | { |
4c9e8c1e | 8493 | mark_failure(super, dev, disk, idx); |
0556e1a2 DW |
8494 | |
8495 | if (disk->scsi_id == __cpu_to_le32(~(__u32)0)) | |
8496 | return; | |
8497 | ||
47ee5a45 DW |
8498 | disk->scsi_id = __cpu_to_le32(~(__u32)0); |
8499 | memmove(&disk->serial[0], &disk->serial[1], MAX_RAID_SERIAL_LEN - 1); | |
8500 | } | |
8501 | ||
33414a01 DW |
8502 | static void handle_missing(struct intel_super *super, struct imsm_dev *dev) |
8503 | { | |
33414a01 | 8504 | struct dl *dl; |
33414a01 DW |
8505 | |
8506 | if (!super->missing) | |
8507 | return; | |
33414a01 | 8508 | |
79b68f1b PC |
8509 | /* When orom adds replacement for missing disk it does |
8510 | * not remove entry of missing disk, but just updates map with | |
8511 | * new added disk. So it is not enough just to test if there is | |
8512 | * any missing disk, we have to look if there are any failed disks | |
8513 | * in map to stop migration */ | |
8514 | ||
33414a01 | 8515 | dprintf("imsm: mark missing\n"); |
3d59f0c0 AK |
8516 | /* end process for initialization and rebuild only |
8517 | */ | |
195d1d76 | 8518 | if (is_gen_migration(dev) == false) { |
fb12a745 | 8519 | int failed = imsm_count_failed(super, dev, MAP_0); |
3d59f0c0 | 8520 | |
fb12a745 TM |
8521 | if (failed) { |
8522 | __u8 map_state; | |
8523 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
8524 | struct imsm_map *map1; | |
8525 | int i, ord, ord_map1; | |
8526 | int rebuilt = 1; | |
3d59f0c0 | 8527 | |
fb12a745 TM |
8528 | for (i = 0; i < map->num_members; i++) { |
8529 | ord = get_imsm_ord_tbl_ent(dev, i, MAP_0); | |
8530 | if (!(ord & IMSM_ORD_REBUILD)) | |
8531 | continue; | |
8532 | ||
8533 | map1 = get_imsm_map(dev, MAP_1); | |
8534 | if (!map1) | |
8535 | continue; | |
8536 | ||
8537 | ord_map1 = __le32_to_cpu(map1->disk_ord_tbl[i]); | |
8538 | if (ord_map1 & IMSM_ORD_REBUILD) | |
8539 | rebuilt = 0; | |
8540 | } | |
8541 | ||
8542 | if (rebuilt) { | |
8543 | map_state = imsm_check_degraded(super, dev, | |
8544 | failed, MAP_0); | |
8545 | end_migration(dev, super, map_state); | |
8546 | } | |
8547 | } | |
3d59f0c0 | 8548 | } |
33414a01 | 8549 | for (dl = super->missing; dl; dl = dl->next) |
4c9e8c1e | 8550 | mark_missing(super, dev, &dl->disk, dl->index); |
33414a01 DW |
8551 | super->updates_pending++; |
8552 | } | |
8553 | ||
f3871fdc AK |
8554 | static unsigned long long imsm_set_array_size(struct imsm_dev *dev, |
8555 | long long new_size) | |
70bdf0dc | 8556 | { |
70bdf0dc | 8557 | unsigned long long array_blocks; |
9529d343 MD |
8558 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
8559 | int used_disks = imsm_num_data_members(map); | |
70bdf0dc AK |
8560 | |
8561 | if (used_disks == 0) { | |
8562 | /* when problems occures | |
8563 | * return current array_blocks value | |
8564 | */ | |
fcc2c9da | 8565 | array_blocks = imsm_dev_size(dev); |
70bdf0dc AK |
8566 | |
8567 | return array_blocks; | |
8568 | } | |
8569 | ||
8570 | /* set array size in metadata | |
8571 | */ | |
9529d343 | 8572 | if (new_size <= 0) |
f3871fdc AK |
8573 | /* OLCE size change is caused by added disks |
8574 | */ | |
44490938 | 8575 | array_blocks = per_dev_array_size(map) * used_disks; |
9529d343 | 8576 | else |
f3871fdc AK |
8577 | /* Online Volume Size Change |
8578 | * Using available free space | |
8579 | */ | |
8580 | array_blocks = new_size; | |
70bdf0dc | 8581 | |
b53bfba6 | 8582 | array_blocks = round_size_to_mb(array_blocks, used_disks); |
fcc2c9da | 8583 | set_imsm_dev_size(dev, array_blocks); |
70bdf0dc AK |
8584 | |
8585 | return array_blocks; | |
8586 | } | |
8587 | ||
28bce06f AK |
8588 | static void imsm_set_disk(struct active_array *a, int n, int state); |
8589 | ||
0e2d1a4e AK |
8590 | static void imsm_progress_container_reshape(struct intel_super *super) |
8591 | { | |
8592 | /* if no device has a migr_state, but some device has a | |
8593 | * different number of members than the previous device, start | |
8594 | * changing the number of devices in this device to match | |
8595 | * previous. | |
8596 | */ | |
8597 | struct imsm_super *mpb = super->anchor; | |
8598 | int prev_disks = -1; | |
8599 | int i; | |
1dfaa380 | 8600 | int copy_map_size; |
0e2d1a4e AK |
8601 | |
8602 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
8603 | struct imsm_dev *dev = get_imsm_dev(super, i); | |
238c0a71 | 8604 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
0e2d1a4e AK |
8605 | struct imsm_map *map2; |
8606 | int prev_num_members; | |
0e2d1a4e AK |
8607 | |
8608 | if (dev->vol.migr_state) | |
8609 | return; | |
8610 | ||
8611 | if (prev_disks == -1) | |
8612 | prev_disks = map->num_members; | |
8613 | if (prev_disks == map->num_members) | |
8614 | continue; | |
8615 | ||
8616 | /* OK, this array needs to enter reshape mode. | |
8617 | * i.e it needs a migr_state | |
8618 | */ | |
8619 | ||
1dfaa380 | 8620 | copy_map_size = sizeof_imsm_map(map); |
0e2d1a4e AK |
8621 | prev_num_members = map->num_members; |
8622 | map->num_members = prev_disks; | |
8623 | dev->vol.migr_state = 1; | |
4036e7ee | 8624 | set_vol_curr_migr_unit(dev, 0); |
ea672ee1 | 8625 | set_migr_type(dev, MIGR_GEN_MIGR); |
0e2d1a4e AK |
8626 | for (i = prev_num_members; |
8627 | i < map->num_members; i++) | |
8628 | set_imsm_ord_tbl_ent(map, i, i); | |
238c0a71 | 8629 | map2 = get_imsm_map(dev, MAP_1); |
0e2d1a4e | 8630 | /* Copy the current map */ |
1dfaa380 | 8631 | memcpy(map2, map, copy_map_size); |
0e2d1a4e AK |
8632 | map2->num_members = prev_num_members; |
8633 | ||
f3871fdc | 8634 | imsm_set_array_size(dev, -1); |
51d83f5d | 8635 | super->clean_migration_record_by_mdmon = 1; |
0e2d1a4e AK |
8636 | super->updates_pending++; |
8637 | } | |
8638 | } | |
8639 | ||
aad6f216 | 8640 | /* Handle dirty -> clean transititions, resync and reshape. Degraded and rebuild |
0c046afd DW |
8641 | * states are handled in imsm_set_disk() with one exception, when a |
8642 | * resync is stopped due to a new failure this routine will set the | |
8643 | * 'degraded' state for the array. | |
8644 | */ | |
01f157d7 | 8645 | static int imsm_set_array_state(struct active_array *a, int consistent) |
a862209d DW |
8646 | { |
8647 | int inst = a->info.container_member; | |
8648 | struct intel_super *super = a->container->sb; | |
949c47a0 | 8649 | struct imsm_dev *dev = get_imsm_dev(super, inst); |
238c0a71 | 8650 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
3b451610 AK |
8651 | int failed = imsm_count_failed(super, dev, MAP_0); |
8652 | __u8 map_state = imsm_check_degraded(super, dev, failed, MAP_0); | |
1e5c6983 | 8653 | __u32 blocks_per_unit; |
a862209d | 8654 | |
1af97990 AK |
8655 | if (dev->vol.migr_state && |
8656 | dev->vol.migr_type == MIGR_GEN_MIGR) { | |
8657 | /* array state change is blocked due to reshape action | |
aad6f216 N |
8658 | * We might need to |
8659 | * - abort the reshape (if last_checkpoint is 0 and action!= reshape) | |
8660 | * - finish the reshape (if last_checkpoint is big and action != reshape) | |
4036e7ee | 8661 | * - update vol_curr_migr_unit |
1af97990 | 8662 | */ |
aad6f216 | 8663 | if (a->curr_action == reshape) { |
4036e7ee | 8664 | /* still reshaping, maybe update vol_curr_migr_unit */ |
633b5610 | 8665 | goto mark_checkpoint; |
aad6f216 | 8666 | } else { |
aad6f216 N |
8667 | if (a->last_checkpoint >= a->info.component_size) { |
8668 | unsigned long long array_blocks; | |
8669 | int used_disks; | |
e154ced3 | 8670 | struct mdinfo *mdi; |
aad6f216 | 8671 | |
9529d343 | 8672 | used_disks = imsm_num_data_members(map); |
d55adef9 AK |
8673 | if (used_disks > 0) { |
8674 | array_blocks = | |
44490938 | 8675 | per_dev_array_size(map) * |
d55adef9 | 8676 | used_disks; |
b53bfba6 TM |
8677 | array_blocks = |
8678 | round_size_to_mb(array_blocks, | |
8679 | used_disks); | |
d55adef9 AK |
8680 | a->info.custom_array_size = array_blocks; |
8681 | /* encourage manager to update array | |
8682 | * size | |
8683 | */ | |
e154ced3 | 8684 | |
d55adef9 | 8685 | a->check_reshape = 1; |
633b5610 | 8686 | } |
e154ced3 AK |
8687 | /* finalize online capacity expansion/reshape */ |
8688 | for (mdi = a->info.devs; mdi; mdi = mdi->next) | |
8689 | imsm_set_disk(a, | |
8690 | mdi->disk.raid_disk, | |
8691 | mdi->curr_state); | |
8692 | ||
0e2d1a4e | 8693 | imsm_progress_container_reshape(super); |
e154ced3 | 8694 | } |
aad6f216 | 8695 | } |
1af97990 AK |
8696 | } |
8697 | ||
47ee5a45 | 8698 | /* before we activate this array handle any missing disks */ |
33414a01 DW |
8699 | if (consistent == 2) |
8700 | handle_missing(super, dev); | |
1e5c6983 | 8701 | |
0c046afd | 8702 | if (consistent == 2 && |
b7941fd6 | 8703 | (!is_resync_complete(&a->info) || |
0c046afd DW |
8704 | map_state != IMSM_T_STATE_NORMAL || |
8705 | dev->vol.migr_state)) | |
01f157d7 | 8706 | consistent = 0; |
272906ef | 8707 | |
b7941fd6 | 8708 | if (is_resync_complete(&a->info)) { |
0c046afd | 8709 | /* complete intialization / resync, |
0556e1a2 DW |
8710 | * recovery and interrupted recovery is completed in |
8711 | * ->set_disk | |
0c046afd DW |
8712 | */ |
8713 | if (is_resyncing(dev)) { | |
8714 | dprintf("imsm: mark resync done\n"); | |
809da78e | 8715 | end_migration(dev, super, map_state); |
115c3803 | 8716 | super->updates_pending++; |
484240d8 | 8717 | a->last_checkpoint = 0; |
115c3803 | 8718 | } |
b9172665 AK |
8719 | } else if ((!is_resyncing(dev) && !failed) && |
8720 | (imsm_reshape_blocks_arrays_changes(super) == 0)) { | |
0c046afd | 8721 | /* mark the start of the init process if nothing is failed */ |
b7941fd6 | 8722 | dprintf("imsm: mark resync start\n"); |
1484e727 | 8723 | if (map->map_state == IMSM_T_STATE_UNINITIALIZED) |
8e59f3d8 | 8724 | migrate(dev, super, IMSM_T_STATE_NORMAL, MIGR_INIT); |
1484e727 | 8725 | else |
8e59f3d8 | 8726 | migrate(dev, super, IMSM_T_STATE_NORMAL, MIGR_REPAIR); |
3393c6af | 8727 | super->updates_pending++; |
115c3803 | 8728 | } |
a862209d | 8729 | |
fdb7e802 MK |
8730 | if (a->prev_action == idle) |
8731 | goto skip_mark_checkpoint; | |
8732 | ||
633b5610 | 8733 | mark_checkpoint: |
5b83bacf AK |
8734 | /* skip checkpointing for general migration, |
8735 | * it is controlled in mdadm | |
8736 | */ | |
8737 | if (is_gen_migration(dev)) | |
8738 | goto skip_mark_checkpoint; | |
8739 | ||
4036e7ee MT |
8740 | /* check if we can update vol_curr_migr_unit from resync_start, |
8741 | * recovery_start | |
8742 | */ | |
c47b0ff6 | 8743 | blocks_per_unit = blocks_per_migr_unit(super, dev); |
4f0a7acc | 8744 | if (blocks_per_unit) { |
4036e7ee MT |
8745 | set_vol_curr_migr_unit(dev, |
8746 | a->last_checkpoint / blocks_per_unit); | |
8747 | dprintf("imsm: mark checkpoint (%llu)\n", | |
8748 | vol_curr_migr_unit(dev)); | |
8749 | super->updates_pending++; | |
1e5c6983 | 8750 | } |
f8f603f1 | 8751 | |
5b83bacf | 8752 | skip_mark_checkpoint: |
3393c6af | 8753 | /* mark dirty / clean */ |
2432ce9b AP |
8754 | if (((dev->vol.dirty & RAIDVOL_DIRTY) && consistent) || |
8755 | (!(dev->vol.dirty & RAIDVOL_DIRTY) && !consistent)) { | |
b7941fd6 | 8756 | dprintf("imsm: mark '%s'\n", consistent ? "clean" : "dirty"); |
2432ce9b AP |
8757 | if (consistent) { |
8758 | dev->vol.dirty = RAIDVOL_CLEAN; | |
8759 | } else { | |
8760 | dev->vol.dirty = RAIDVOL_DIRTY; | |
c2462068 PB |
8761 | if (dev->rwh_policy == RWH_DISTRIBUTED || |
8762 | dev->rwh_policy == RWH_MULTIPLE_DISTRIBUTED) | |
2432ce9b AP |
8763 | dev->vol.dirty |= RAIDVOL_DSRECORD_VALID; |
8764 | } | |
a862209d DW |
8765 | super->updates_pending++; |
8766 | } | |
28bce06f | 8767 | |
01f157d7 | 8768 | return consistent; |
a862209d DW |
8769 | } |
8770 | ||
6f50473f TM |
8771 | static int imsm_disk_slot_to_ord(struct active_array *a, int slot) |
8772 | { | |
8773 | int inst = a->info.container_member; | |
8774 | struct intel_super *super = a->container->sb; | |
8775 | struct imsm_dev *dev = get_imsm_dev(super, inst); | |
8776 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
8777 | ||
8778 | if (slot > map->num_members) { | |
8779 | pr_err("imsm: imsm_disk_slot_to_ord %d out of range 0..%d\n", | |
8780 | slot, map->num_members - 1); | |
8781 | return -1; | |
8782 | } | |
8783 | ||
8784 | if (slot < 0) | |
8785 | return -1; | |
8786 | ||
8787 | return get_imsm_ord_tbl_ent(dev, slot, MAP_0); | |
8788 | } | |
8789 | ||
8d45d196 | 8790 | static void imsm_set_disk(struct active_array *a, int n, int state) |
845dea95 | 8791 | { |
8d45d196 DW |
8792 | int inst = a->info.container_member; |
8793 | struct intel_super *super = a->container->sb; | |
949c47a0 | 8794 | struct imsm_dev *dev = get_imsm_dev(super, inst); |
238c0a71 | 8795 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
8d45d196 | 8796 | struct imsm_disk *disk; |
7ce05701 LD |
8797 | struct mdinfo *mdi; |
8798 | int recovery_not_finished = 0; | |
0c046afd | 8799 | int failed; |
6f50473f | 8800 | int ord; |
0c046afd | 8801 | __u8 map_state; |
fb12a745 TM |
8802 | int rebuild_done = 0; |
8803 | int i; | |
8d45d196 | 8804 | |
fb12a745 | 8805 | ord = get_imsm_ord_tbl_ent(dev, n, MAP_X); |
6f50473f | 8806 | if (ord < 0) |
8d45d196 DW |
8807 | return; |
8808 | ||
4e6e574a | 8809 | dprintf("imsm: set_disk %d:%x\n", n, state); |
b10b37b8 | 8810 | disk = get_imsm_disk(super, ord_to_idx(ord)); |
8d45d196 | 8811 | |
5802a811 | 8812 | /* check for new failures */ |
ae7d61e3 | 8813 | if (disk && (state & DS_FAULTY)) { |
4c9e8c1e | 8814 | if (mark_failure(super, dev, disk, ord_to_idx(ord))) |
0556e1a2 | 8815 | super->updates_pending++; |
8d45d196 | 8816 | } |
47ee5a45 | 8817 | |
19859edc | 8818 | /* check if in_sync */ |
0556e1a2 | 8819 | if (state & DS_INSYNC && ord & IMSM_ORD_REBUILD && is_rebuilding(dev)) { |
238c0a71 | 8820 | struct imsm_map *migr_map = get_imsm_map(dev, MAP_1); |
b10b37b8 DW |
8821 | |
8822 | set_imsm_ord_tbl_ent(migr_map, n, ord_to_idx(ord)); | |
fb12a745 | 8823 | rebuild_done = 1; |
19859edc DW |
8824 | super->updates_pending++; |
8825 | } | |
8d45d196 | 8826 | |
3b451610 AK |
8827 | failed = imsm_count_failed(super, dev, MAP_0); |
8828 | map_state = imsm_check_degraded(super, dev, failed, MAP_0); | |
5802a811 | 8829 | |
0c046afd | 8830 | /* check if recovery complete, newly degraded, or failed */ |
94002678 AK |
8831 | dprintf("imsm: Detected transition to state "); |
8832 | switch (map_state) { | |
8833 | case IMSM_T_STATE_NORMAL: /* transition to normal state */ | |
8834 | dprintf("normal: "); | |
8835 | if (is_rebuilding(dev)) { | |
1ade5cc1 | 8836 | dprintf_cont("while rebuilding"); |
7ce05701 LD |
8837 | /* check if recovery is really finished */ |
8838 | for (mdi = a->info.devs; mdi ; mdi = mdi->next) | |
8839 | if (mdi->recovery_start != MaxSector) { | |
8840 | recovery_not_finished = 1; | |
8841 | break; | |
8842 | } | |
8843 | if (recovery_not_finished) { | |
1ade5cc1 N |
8844 | dprintf_cont("\n"); |
8845 | dprintf("Rebuild has not finished yet, state not changed"); | |
7ce05701 LD |
8846 | if (a->last_checkpoint < mdi->recovery_start) { |
8847 | a->last_checkpoint = mdi->recovery_start; | |
8848 | super->updates_pending++; | |
8849 | } | |
8850 | break; | |
8851 | } | |
94002678 | 8852 | end_migration(dev, super, map_state); |
94002678 AK |
8853 | map->failed_disk_num = ~0; |
8854 | super->updates_pending++; | |
8855 | a->last_checkpoint = 0; | |
8856 | break; | |
8857 | } | |
8858 | if (is_gen_migration(dev)) { | |
1ade5cc1 | 8859 | dprintf_cont("while general migration"); |
bf2f0071 | 8860 | if (a->last_checkpoint >= a->info.component_size) |
809da78e | 8861 | end_migration(dev, super, map_state); |
94002678 AK |
8862 | else |
8863 | map->map_state = map_state; | |
28bce06f | 8864 | map->failed_disk_num = ~0; |
94002678 | 8865 | super->updates_pending++; |
bf2f0071 | 8866 | break; |
94002678 AK |
8867 | } |
8868 | break; | |
8869 | case IMSM_T_STATE_DEGRADED: /* transition to degraded state */ | |
1ade5cc1 | 8870 | dprintf_cont("degraded: "); |
089f9d79 | 8871 | if (map->map_state != map_state && !dev->vol.migr_state) { |
1ade5cc1 | 8872 | dprintf_cont("mark degraded"); |
94002678 AK |
8873 | map->map_state = map_state; |
8874 | super->updates_pending++; | |
8875 | a->last_checkpoint = 0; | |
8876 | break; | |
8877 | } | |
8878 | if (is_rebuilding(dev)) { | |
d7a1fda2 | 8879 | dprintf_cont("while rebuilding "); |
a4e96fd8 MT |
8880 | if (state & DS_FAULTY) { |
8881 | dprintf_cont("removing failed drive "); | |
d7a1fda2 MT |
8882 | if (n == map->failed_disk_num) { |
8883 | dprintf_cont("end migration"); | |
8884 | end_migration(dev, super, map_state); | |
a4e96fd8 | 8885 | a->last_checkpoint = 0; |
d7a1fda2 | 8886 | } else { |
a4e96fd8 | 8887 | dprintf_cont("fail detected during rebuild, changing map state"); |
d7a1fda2 MT |
8888 | map->map_state = map_state; |
8889 | } | |
94002678 | 8890 | super->updates_pending++; |
fb12a745 TM |
8891 | } |
8892 | ||
a4e96fd8 MT |
8893 | if (!rebuild_done) |
8894 | break; | |
8895 | ||
fb12a745 TM |
8896 | /* check if recovery is really finished */ |
8897 | for (mdi = a->info.devs; mdi ; mdi = mdi->next) | |
8898 | if (mdi->recovery_start != MaxSector) { | |
8899 | recovery_not_finished = 1; | |
8900 | break; | |
8901 | } | |
8902 | if (recovery_not_finished) { | |
8903 | dprintf_cont("\n"); | |
a4e96fd8 | 8904 | dprintf_cont("Rebuild has not finished yet"); |
fb12a745 TM |
8905 | if (a->last_checkpoint < mdi->recovery_start) { |
8906 | a->last_checkpoint = | |
8907 | mdi->recovery_start; | |
8908 | super->updates_pending++; | |
8909 | } | |
8910 | break; | |
94002678 | 8911 | } |
fb12a745 TM |
8912 | |
8913 | dprintf_cont(" Rebuild done, still degraded"); | |
a4e96fd8 MT |
8914 | end_migration(dev, super, map_state); |
8915 | a->last_checkpoint = 0; | |
8916 | super->updates_pending++; | |
fb12a745 TM |
8917 | |
8918 | for (i = 0; i < map->num_members; i++) { | |
8919 | int idx = get_imsm_ord_tbl_ent(dev, i, MAP_0); | |
8920 | ||
8921 | if (idx & IMSM_ORD_REBUILD) | |
8922 | map->failed_disk_num = i; | |
8923 | } | |
8924 | super->updates_pending++; | |
94002678 AK |
8925 | break; |
8926 | } | |
8927 | if (is_gen_migration(dev)) { | |
1ade5cc1 | 8928 | dprintf_cont("while general migration"); |
bf2f0071 | 8929 | if (a->last_checkpoint >= a->info.component_size) |
809da78e | 8930 | end_migration(dev, super, map_state); |
94002678 AK |
8931 | else { |
8932 | map->map_state = map_state; | |
3b451610 | 8933 | manage_second_map(super, dev); |
94002678 AK |
8934 | } |
8935 | super->updates_pending++; | |
bf2f0071 | 8936 | break; |
28bce06f | 8937 | } |
6ce1fbf1 | 8938 | if (is_initializing(dev)) { |
1ade5cc1 | 8939 | dprintf_cont("while initialization."); |
6ce1fbf1 AK |
8940 | map->map_state = map_state; |
8941 | super->updates_pending++; | |
8942 | break; | |
8943 | } | |
94002678 AK |
8944 | break; |
8945 | case IMSM_T_STATE_FAILED: /* transition to failed state */ | |
1ade5cc1 | 8946 | dprintf_cont("failed: "); |
94002678 | 8947 | if (is_gen_migration(dev)) { |
1ade5cc1 | 8948 | dprintf_cont("while general migration"); |
94002678 AK |
8949 | map->map_state = map_state; |
8950 | super->updates_pending++; | |
8951 | break; | |
8952 | } | |
8953 | if (map->map_state != map_state) { | |
1ade5cc1 | 8954 | dprintf_cont("mark failed"); |
94002678 AK |
8955 | end_migration(dev, super, map_state); |
8956 | super->updates_pending++; | |
8957 | a->last_checkpoint = 0; | |
8958 | break; | |
8959 | } | |
8960 | break; | |
8961 | default: | |
1ade5cc1 | 8962 | dprintf_cont("state %i\n", map_state); |
5802a811 | 8963 | } |
1ade5cc1 | 8964 | dprintf_cont("\n"); |
845dea95 NB |
8965 | } |
8966 | ||
f796af5d | 8967 | static int store_imsm_mpb(int fd, struct imsm_super *mpb) |
c2a1e7da | 8968 | { |
f796af5d | 8969 | void *buf = mpb; |
c2a1e7da DW |
8970 | __u32 mpb_size = __le32_to_cpu(mpb->mpb_size); |
8971 | unsigned long long dsize; | |
8972 | unsigned long long sectors; | |
f36a9ecd | 8973 | unsigned int sector_size; |
c2a1e7da | 8974 | |
aec01630 JS |
8975 | if (!get_dev_sector_size(fd, NULL, §or_size)) |
8976 | return 1; | |
c2a1e7da DW |
8977 | get_dev_size(fd, NULL, &dsize); |
8978 | ||
f36a9ecd | 8979 | if (mpb_size > sector_size) { |
272f648f | 8980 | /* -1 to account for anchor */ |
f36a9ecd | 8981 | sectors = mpb_sectors(mpb, sector_size) - 1; |
c2a1e7da | 8982 | |
272f648f | 8983 | /* write the extended mpb to the sectors preceeding the anchor */ |
f36a9ecd PB |
8984 | if (lseek64(fd, dsize - (sector_size * (2 + sectors)), |
8985 | SEEK_SET) < 0) | |
272f648f | 8986 | return 1; |
c2a1e7da | 8987 | |
f36a9ecd PB |
8988 | if ((unsigned long long)write(fd, buf + sector_size, |
8989 | sector_size * sectors) != sector_size * sectors) | |
272f648f DW |
8990 | return 1; |
8991 | } | |
c2a1e7da | 8992 | |
272f648f | 8993 | /* first block is stored on second to last sector of the disk */ |
f36a9ecd | 8994 | if (lseek64(fd, dsize - (sector_size * 2), SEEK_SET) < 0) |
c2a1e7da DW |
8995 | return 1; |
8996 | ||
466070ad | 8997 | if ((unsigned int)write(fd, buf, sector_size) != sector_size) |
c2a1e7da DW |
8998 | return 1; |
8999 | ||
c2a1e7da DW |
9000 | return 0; |
9001 | } | |
9002 | ||
2e735d19 | 9003 | static void imsm_sync_metadata(struct supertype *container) |
845dea95 | 9004 | { |
2e735d19 | 9005 | struct intel_super *super = container->sb; |
c2a1e7da | 9006 | |
1a64be56 | 9007 | dprintf("sync metadata: %d\n", super->updates_pending); |
c2a1e7da DW |
9008 | if (!super->updates_pending) |
9009 | return; | |
9010 | ||
36988a3d | 9011 | write_super_imsm(container, 0); |
c2a1e7da DW |
9012 | |
9013 | super->updates_pending = 0; | |
845dea95 NB |
9014 | } |
9015 | ||
272906ef DW |
9016 | static struct dl *imsm_readd(struct intel_super *super, int idx, struct active_array *a) |
9017 | { | |
9018 | struct imsm_dev *dev = get_imsm_dev(super, a->info.container_member); | |
238c0a71 | 9019 | int i = get_imsm_disk_idx(dev, idx, MAP_X); |
272906ef DW |
9020 | struct dl *dl; |
9021 | ||
9022 | for (dl = super->disks; dl; dl = dl->next) | |
9023 | if (dl->index == i) | |
9024 | break; | |
9025 | ||
25ed7e59 | 9026 | if (dl && is_failed(&dl->disk)) |
272906ef DW |
9027 | dl = NULL; |
9028 | ||
9029 | if (dl) | |
1ade5cc1 | 9030 | dprintf("found %x:%x\n", dl->major, dl->minor); |
272906ef DW |
9031 | |
9032 | return dl; | |
9033 | } | |
9034 | ||
a20d2ba5 | 9035 | static struct dl *imsm_add_spare(struct intel_super *super, int slot, |
8ba77d32 AK |
9036 | struct active_array *a, int activate_new, |
9037 | struct mdinfo *additional_test_list) | |
272906ef DW |
9038 | { |
9039 | struct imsm_dev *dev = get_imsm_dev(super, a->info.container_member); | |
238c0a71 | 9040 | int idx = get_imsm_disk_idx(dev, slot, MAP_X); |
a20d2ba5 DW |
9041 | struct imsm_super *mpb = super->anchor; |
9042 | struct imsm_map *map; | |
272906ef DW |
9043 | unsigned long long pos; |
9044 | struct mdinfo *d; | |
9045 | struct extent *ex; | |
a20d2ba5 | 9046 | int i, j; |
272906ef | 9047 | int found; |
569cc43f DW |
9048 | __u32 array_start = 0; |
9049 | __u32 array_end = 0; | |
272906ef | 9050 | struct dl *dl; |
6c932028 | 9051 | struct mdinfo *test_list; |
272906ef DW |
9052 | |
9053 | for (dl = super->disks; dl; dl = dl->next) { | |
9054 | /* If in this array, skip */ | |
9055 | for (d = a->info.devs ; d ; d = d->next) | |
4389ce73 | 9056 | if (is_fd_valid(d->state_fd) && |
e553d2a4 | 9057 | d->disk.major == dl->major && |
272906ef | 9058 | d->disk.minor == dl->minor) { |
8ba77d32 AK |
9059 | dprintf("%x:%x already in array\n", |
9060 | dl->major, dl->minor); | |
272906ef DW |
9061 | break; |
9062 | } | |
9063 | if (d) | |
9064 | continue; | |
6c932028 AK |
9065 | test_list = additional_test_list; |
9066 | while (test_list) { | |
9067 | if (test_list->disk.major == dl->major && | |
9068 | test_list->disk.minor == dl->minor) { | |
8ba77d32 AK |
9069 | dprintf("%x:%x already in additional test list\n", |
9070 | dl->major, dl->minor); | |
9071 | break; | |
9072 | } | |
6c932028 | 9073 | test_list = test_list->next; |
8ba77d32 | 9074 | } |
6c932028 | 9075 | if (test_list) |
8ba77d32 | 9076 | continue; |
272906ef | 9077 | |
e553d2a4 | 9078 | /* skip in use or failed drives */ |
25ed7e59 | 9079 | if (is_failed(&dl->disk) || idx == dl->index || |
df474657 DW |
9080 | dl->index == -2) { |
9081 | dprintf("%x:%x status (failed: %d index: %d)\n", | |
25ed7e59 | 9082 | dl->major, dl->minor, is_failed(&dl->disk), idx); |
9a1608e5 DW |
9083 | continue; |
9084 | } | |
9085 | ||
a20d2ba5 DW |
9086 | /* skip pure spares when we are looking for partially |
9087 | * assimilated drives | |
9088 | */ | |
9089 | if (dl->index == -1 && !activate_new) | |
9090 | continue; | |
9091 | ||
f2cc4f7d AO |
9092 | if (!drive_validate_sector_size(super, dl)) |
9093 | continue; | |
9094 | ||
272906ef | 9095 | /* Does this unused device have the requisite free space? |
a20d2ba5 | 9096 | * It needs to be able to cover all member volumes |
272906ef | 9097 | */ |
05501181 | 9098 | ex = get_extents(super, dl, 1); |
272906ef DW |
9099 | if (!ex) { |
9100 | dprintf("cannot get extents\n"); | |
9101 | continue; | |
9102 | } | |
a20d2ba5 DW |
9103 | for (i = 0; i < mpb->num_raid_devs; i++) { |
9104 | dev = get_imsm_dev(super, i); | |
238c0a71 | 9105 | map = get_imsm_map(dev, MAP_0); |
272906ef | 9106 | |
a20d2ba5 DW |
9107 | /* check if this disk is already a member of |
9108 | * this array | |
272906ef | 9109 | */ |
620b1713 | 9110 | if (get_imsm_disk_slot(map, dl->index) >= 0) |
a20d2ba5 DW |
9111 | continue; |
9112 | ||
9113 | found = 0; | |
9114 | j = 0; | |
9115 | pos = 0; | |
5551b113 | 9116 | array_start = pba_of_lba0(map); |
329c8278 | 9117 | array_end = array_start + |
44490938 | 9118 | per_dev_array_size(map) - 1; |
a20d2ba5 DW |
9119 | |
9120 | do { | |
9121 | /* check that we can start at pba_of_lba0 with | |
44490938 | 9122 | * num_data_stripes*blocks_per_stripe of space |
a20d2ba5 | 9123 | */ |
329c8278 | 9124 | if (array_start >= pos && array_end < ex[j].start) { |
a20d2ba5 DW |
9125 | found = 1; |
9126 | break; | |
9127 | } | |
9128 | pos = ex[j].start + ex[j].size; | |
9129 | j++; | |
9130 | } while (ex[j-1].size); | |
9131 | ||
9132 | if (!found) | |
272906ef | 9133 | break; |
a20d2ba5 | 9134 | } |
272906ef DW |
9135 | |
9136 | free(ex); | |
a20d2ba5 | 9137 | if (i < mpb->num_raid_devs) { |
329c8278 DW |
9138 | dprintf("%x:%x does not have %u to %u available\n", |
9139 | dl->major, dl->minor, array_start, array_end); | |
272906ef DW |
9140 | /* No room */ |
9141 | continue; | |
a20d2ba5 DW |
9142 | } |
9143 | return dl; | |
272906ef DW |
9144 | } |
9145 | ||
9146 | return dl; | |
9147 | } | |
9148 | ||
95d07a2c LM |
9149 | static int imsm_rebuild_allowed(struct supertype *cont, int dev_idx, int failed) |
9150 | { | |
9151 | struct imsm_dev *dev2; | |
9152 | struct imsm_map *map; | |
9153 | struct dl *idisk; | |
9154 | int slot; | |
9155 | int idx; | |
9156 | __u8 state; | |
9157 | ||
9158 | dev2 = get_imsm_dev(cont->sb, dev_idx); | |
756a15f3 MG |
9159 | |
9160 | state = imsm_check_degraded(cont->sb, dev2, failed, MAP_0); | |
9161 | if (state == IMSM_T_STATE_FAILED) { | |
9162 | map = get_imsm_map(dev2, MAP_0); | |
9163 | for (slot = 0; slot < map->num_members; slot++) { | |
9164 | /* | |
9165 | * Check if failed disks are deleted from intel | |
9166 | * disk list or are marked to be deleted | |
9167 | */ | |
9168 | idx = get_imsm_disk_idx(dev2, slot, MAP_X); | |
9169 | idisk = get_imsm_dl_disk(cont->sb, idx); | |
9170 | /* | |
9171 | * Do not rebuild the array if failed disks | |
9172 | * from failed sub-array are not removed from | |
9173 | * container. | |
9174 | */ | |
9175 | if (idisk && | |
9176 | is_failed(&idisk->disk) && | |
9177 | (idisk->action != DISK_REMOVE)) | |
9178 | return 0; | |
95d07a2c LM |
9179 | } |
9180 | } | |
9181 | return 1; | |
9182 | } | |
9183 | ||
88758e9d DW |
9184 | static struct mdinfo *imsm_activate_spare(struct active_array *a, |
9185 | struct metadata_update **updates) | |
9186 | { | |
9187 | /** | |
d23fe947 DW |
9188 | * Find a device with unused free space and use it to replace a |
9189 | * failed/vacant region in an array. We replace failed regions one a | |
9190 | * array at a time. The result is that a new spare disk will be added | |
9191 | * to the first failed array and after the monitor has finished | |
9192 | * propagating failures the remainder will be consumed. | |
88758e9d | 9193 | * |
d23fe947 DW |
9194 | * FIXME add a capability for mdmon to request spares from another |
9195 | * container. | |
88758e9d DW |
9196 | */ |
9197 | ||
9198 | struct intel_super *super = a->container->sb; | |
88758e9d | 9199 | int inst = a->info.container_member; |
949c47a0 | 9200 | struct imsm_dev *dev = get_imsm_dev(super, inst); |
238c0a71 | 9201 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
88758e9d DW |
9202 | int failed = a->info.array.raid_disks; |
9203 | struct mdinfo *rv = NULL; | |
9204 | struct mdinfo *d; | |
9205 | struct mdinfo *di; | |
9206 | struct metadata_update *mu; | |
9207 | struct dl *dl; | |
9208 | struct imsm_update_activate_spare *u; | |
9209 | int num_spares = 0; | |
9210 | int i; | |
95d07a2c | 9211 | int allowed; |
88758e9d | 9212 | |
4389ce73 MT |
9213 | for (d = a->info.devs ; d; d = d->next) { |
9214 | if (!is_fd_valid(d->state_fd)) | |
9215 | continue; | |
9216 | ||
9217 | if (d->curr_state & DS_FAULTY) | |
88758e9d DW |
9218 | /* wait for Removal to happen */ |
9219 | return NULL; | |
4389ce73 MT |
9220 | |
9221 | failed--; | |
88758e9d DW |
9222 | } |
9223 | ||
9224 | dprintf("imsm: activate spare: inst=%d failed=%d (%d) level=%d\n", | |
9225 | inst, failed, a->info.array.raid_disks, a->info.array.level); | |
1af97990 | 9226 | |
e2962bfc AK |
9227 | if (imsm_reshape_blocks_arrays_changes(super)) |
9228 | return NULL; | |
1af97990 | 9229 | |
fc8ca064 AK |
9230 | /* Cannot activate another spare if rebuild is in progress already |
9231 | */ | |
9232 | if (is_rebuilding(dev)) { | |
7a862a02 | 9233 | dprintf("imsm: No spare activation allowed. Rebuild in progress already.\n"); |
fc8ca064 AK |
9234 | return NULL; |
9235 | } | |
9236 | ||
89c67882 AK |
9237 | if (a->info.array.level == 4) |
9238 | /* No repair for takeovered array | |
9239 | * imsm doesn't support raid4 | |
9240 | */ | |
9241 | return NULL; | |
9242 | ||
3b451610 AK |
9243 | if (imsm_check_degraded(super, dev, failed, MAP_0) != |
9244 | IMSM_T_STATE_DEGRADED) | |
88758e9d DW |
9245 | return NULL; |
9246 | ||
83ca7d45 AP |
9247 | if (get_imsm_map(dev, MAP_0)->map_state == IMSM_T_STATE_UNINITIALIZED) { |
9248 | dprintf("imsm: No spare activation allowed. Volume is not initialized.\n"); | |
9249 | return NULL; | |
9250 | } | |
9251 | ||
95d07a2c LM |
9252 | /* |
9253 | * If there are any failed disks check state of the other volume. | |
9254 | * Block rebuild if the another one is failed until failed disks | |
9255 | * are removed from container. | |
9256 | */ | |
9257 | if (failed) { | |
7a862a02 | 9258 | dprintf("found failed disks in %.*s, check if there anotherfailed sub-array.\n", |
c4acd1e5 | 9259 | MAX_RAID_SERIAL_LEN, dev->volume); |
95d07a2c LM |
9260 | /* check if states of the other volumes allow for rebuild */ |
9261 | for (i = 0; i < super->anchor->num_raid_devs; i++) { | |
9262 | if (i != inst) { | |
9263 | allowed = imsm_rebuild_allowed(a->container, | |
9264 | i, failed); | |
9265 | if (!allowed) | |
9266 | return NULL; | |
9267 | } | |
9268 | } | |
9269 | } | |
9270 | ||
88758e9d | 9271 | /* For each slot, if it is not working, find a spare */ |
88758e9d DW |
9272 | for (i = 0; i < a->info.array.raid_disks; i++) { |
9273 | for (d = a->info.devs ; d ; d = d->next) | |
9274 | if (d->disk.raid_disk == i) | |
9275 | break; | |
9276 | dprintf("found %d: %p %x\n", i, d, d?d->curr_state:0); | |
4389ce73 | 9277 | if (d && is_fd_valid(d->state_fd)) |
88758e9d DW |
9278 | continue; |
9279 | ||
272906ef | 9280 | /* |
a20d2ba5 DW |
9281 | * OK, this device needs recovery. Try to re-add the |
9282 | * previous occupant of this slot, if this fails see if | |
9283 | * we can continue the assimilation of a spare that was | |
9284 | * partially assimilated, finally try to activate a new | |
9285 | * spare. | |
272906ef DW |
9286 | */ |
9287 | dl = imsm_readd(super, i, a); | |
9288 | if (!dl) | |
b303fe21 | 9289 | dl = imsm_add_spare(super, i, a, 0, rv); |
a20d2ba5 | 9290 | if (!dl) |
b303fe21 | 9291 | dl = imsm_add_spare(super, i, a, 1, rv); |
272906ef DW |
9292 | if (!dl) |
9293 | continue; | |
1011e834 | 9294 | |
272906ef | 9295 | /* found a usable disk with enough space */ |
503975b9 | 9296 | di = xcalloc(1, sizeof(*di)); |
272906ef DW |
9297 | |
9298 | /* dl->index will be -1 in the case we are activating a | |
9299 | * pristine spare. imsm_process_update() will create a | |
9300 | * new index in this case. Once a disk is found to be | |
9301 | * failed in all member arrays it is kicked from the | |
9302 | * metadata | |
9303 | */ | |
9304 | di->disk.number = dl->index; | |
d23fe947 | 9305 | |
272906ef DW |
9306 | /* (ab)use di->devs to store a pointer to the device |
9307 | * we chose | |
9308 | */ | |
9309 | di->devs = (struct mdinfo *) dl; | |
9310 | ||
9311 | di->disk.raid_disk = i; | |
9312 | di->disk.major = dl->major; | |
9313 | di->disk.minor = dl->minor; | |
9314 | di->disk.state = 0; | |
d23534e4 | 9315 | di->recovery_start = 0; |
5551b113 | 9316 | di->data_offset = pba_of_lba0(map); |
272906ef DW |
9317 | di->component_size = a->info.component_size; |
9318 | di->container_member = inst; | |
5e46202e | 9319 | di->bb.supported = 1; |
2c8890e9 | 9320 | if (a->info.consistency_policy == CONSISTENCY_POLICY_PPL) { |
2432ce9b | 9321 | di->ppl_sector = get_ppl_sector(super, inst); |
c2462068 | 9322 | di->ppl_size = MULTIPLE_PPL_AREA_SIZE_IMSM >> 9; |
2432ce9b | 9323 | } |
148acb7b | 9324 | super->random = random32(); |
272906ef DW |
9325 | di->next = rv; |
9326 | rv = di; | |
9327 | num_spares++; | |
9328 | dprintf("%x:%x to be %d at %llu\n", dl->major, dl->minor, | |
9329 | i, di->data_offset); | |
88758e9d DW |
9330 | } |
9331 | ||
9332 | if (!rv) | |
9333 | /* No spares found */ | |
9334 | return rv; | |
9335 | /* Now 'rv' has a list of devices to return. | |
9336 | * Create a metadata_update record to update the | |
9337 | * disk_ord_tbl for the array | |
9338 | */ | |
503975b9 | 9339 | mu = xmalloc(sizeof(*mu)); |
1011e834 | 9340 | mu->buf = xcalloc(num_spares, |
503975b9 | 9341 | sizeof(struct imsm_update_activate_spare)); |
88758e9d | 9342 | mu->space = NULL; |
cb23f1f4 | 9343 | mu->space_list = NULL; |
88758e9d DW |
9344 | mu->len = sizeof(struct imsm_update_activate_spare) * num_spares; |
9345 | mu->next = *updates; | |
9346 | u = (struct imsm_update_activate_spare *) mu->buf; | |
9347 | ||
9348 | for (di = rv ; di ; di = di->next) { | |
9349 | u->type = update_activate_spare; | |
d23fe947 DW |
9350 | u->dl = (struct dl *) di->devs; |
9351 | di->devs = NULL; | |
88758e9d DW |
9352 | u->slot = di->disk.raid_disk; |
9353 | u->array = inst; | |
9354 | u->next = u + 1; | |
9355 | u++; | |
9356 | } | |
9357 | (u-1)->next = NULL; | |
9358 | *updates = mu; | |
9359 | ||
9360 | return rv; | |
9361 | } | |
9362 | ||
54c2c1ea | 9363 | static int disks_overlap(struct intel_super *super, int idx, struct imsm_update_create_array *u) |
8273f55e | 9364 | { |
54c2c1ea | 9365 | struct imsm_dev *dev = get_imsm_dev(super, idx); |
238c0a71 AK |
9366 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
9367 | struct imsm_map *new_map = get_imsm_map(&u->dev, MAP_0); | |
54c2c1ea DW |
9368 | struct disk_info *inf = get_disk_info(u); |
9369 | struct imsm_disk *disk; | |
8273f55e DW |
9370 | int i; |
9371 | int j; | |
8273f55e | 9372 | |
54c2c1ea | 9373 | for (i = 0; i < map->num_members; i++) { |
238c0a71 | 9374 | disk = get_imsm_disk(super, get_imsm_disk_idx(dev, i, MAP_X)); |
54c2c1ea DW |
9375 | for (j = 0; j < new_map->num_members; j++) |
9376 | if (serialcmp(disk->serial, inf[j].serial) == 0) | |
8273f55e DW |
9377 | return 1; |
9378 | } | |
9379 | ||
9380 | return 0; | |
9381 | } | |
9382 | ||
1a64be56 LM |
9383 | static struct dl *get_disk_super(struct intel_super *super, int major, int minor) |
9384 | { | |
594dc1b8 JS |
9385 | struct dl *dl; |
9386 | ||
1a64be56 | 9387 | for (dl = super->disks; dl; dl = dl->next) |
089f9d79 | 9388 | if (dl->major == major && dl->minor == minor) |
1a64be56 LM |
9389 | return dl; |
9390 | return NULL; | |
9391 | } | |
9392 | ||
9393 | static int remove_disk_super(struct intel_super *super, int major, int minor) | |
9394 | { | |
594dc1b8 | 9395 | struct dl *prev; |
1a64be56 LM |
9396 | struct dl *dl; |
9397 | ||
9398 | prev = NULL; | |
9399 | for (dl = super->disks; dl; dl = dl->next) { | |
089f9d79 | 9400 | if (dl->major == major && dl->minor == minor) { |
1a64be56 LM |
9401 | /* remove */ |
9402 | if (prev) | |
9403 | prev->next = dl->next; | |
9404 | else | |
9405 | super->disks = dl->next; | |
9406 | dl->next = NULL; | |
3a85bf0e | 9407 | __free_imsm_disk(dl, 1); |
1ade5cc1 | 9408 | dprintf("removed %x:%x\n", major, minor); |
1a64be56 LM |
9409 | break; |
9410 | } | |
9411 | prev = dl; | |
9412 | } | |
9413 | return 0; | |
9414 | } | |
9415 | ||
f21e18ca | 9416 | static void imsm_delete(struct intel_super *super, struct dl **dlp, unsigned index); |
ae6aad82 | 9417 | |
1a64be56 LM |
9418 | static int add_remove_disk_update(struct intel_super *super) |
9419 | { | |
9420 | int check_degraded = 0; | |
594dc1b8 JS |
9421 | struct dl *disk; |
9422 | ||
1a64be56 LM |
9423 | /* add/remove some spares to/from the metadata/contrainer */ |
9424 | while (super->disk_mgmt_list) { | |
9425 | struct dl *disk_cfg; | |
9426 | ||
9427 | disk_cfg = super->disk_mgmt_list; | |
9428 | super->disk_mgmt_list = disk_cfg->next; | |
9429 | disk_cfg->next = NULL; | |
9430 | ||
9431 | if (disk_cfg->action == DISK_ADD) { | |
9432 | disk_cfg->next = super->disks; | |
9433 | super->disks = disk_cfg; | |
9434 | check_degraded = 1; | |
1ade5cc1 N |
9435 | dprintf("added %x:%x\n", |
9436 | disk_cfg->major, disk_cfg->minor); | |
1a64be56 LM |
9437 | } else if (disk_cfg->action == DISK_REMOVE) { |
9438 | dprintf("Disk remove action processed: %x.%x\n", | |
9439 | disk_cfg->major, disk_cfg->minor); | |
9440 | disk = get_disk_super(super, | |
9441 | disk_cfg->major, | |
9442 | disk_cfg->minor); | |
9443 | if (disk) { | |
9444 | /* store action status */ | |
9445 | disk->action = DISK_REMOVE; | |
9446 | /* remove spare disks only */ | |
9447 | if (disk->index == -1) { | |
9448 | remove_disk_super(super, | |
9449 | disk_cfg->major, | |
9450 | disk_cfg->minor); | |
91c97c54 MT |
9451 | } else { |
9452 | disk_cfg->fd = disk->fd; | |
9453 | disk->fd = -1; | |
1a64be56 LM |
9454 | } |
9455 | } | |
9456 | /* release allocate disk structure */ | |
3a85bf0e | 9457 | __free_imsm_disk(disk_cfg, 1); |
1a64be56 LM |
9458 | } |
9459 | } | |
9460 | return check_degraded; | |
9461 | } | |
9462 | ||
a29911da PC |
9463 | static int apply_reshape_migration_update(struct imsm_update_reshape_migration *u, |
9464 | struct intel_super *super, | |
9465 | void ***space_list) | |
9466 | { | |
9467 | struct intel_dev *id; | |
9468 | void **tofree = NULL; | |
9469 | int ret_val = 0; | |
9470 | ||
1ade5cc1 | 9471 | dprintf("(enter)\n"); |
089f9d79 | 9472 | if (u->subdev < 0 || u->subdev > 1) { |
a29911da PC |
9473 | dprintf("imsm: Error: Wrong subdev: %i\n", u->subdev); |
9474 | return ret_val; | |
9475 | } | |
089f9d79 | 9476 | if (space_list == NULL || *space_list == NULL) { |
a29911da PC |
9477 | dprintf("imsm: Error: Memory is not allocated\n"); |
9478 | return ret_val; | |
9479 | } | |
9480 | ||
9481 | for (id = super->devlist ; id; id = id->next) { | |
9482 | if (id->index == (unsigned)u->subdev) { | |
9483 | struct imsm_dev *dev = get_imsm_dev(super, u->subdev); | |
9484 | struct imsm_map *map; | |
9485 | struct imsm_dev *new_dev = | |
9486 | (struct imsm_dev *)*space_list; | |
238c0a71 | 9487 | struct imsm_map *migr_map = get_imsm_map(dev, MAP_1); |
a29911da PC |
9488 | int to_state; |
9489 | struct dl *new_disk; | |
9490 | ||
9491 | if (new_dev == NULL) | |
9492 | return ret_val; | |
9493 | *space_list = **space_list; | |
9494 | memcpy(new_dev, dev, sizeof_imsm_dev(dev, 0)); | |
238c0a71 | 9495 | map = get_imsm_map(new_dev, MAP_0); |
a29911da PC |
9496 | if (migr_map) { |
9497 | dprintf("imsm: Error: migration in progress"); | |
9498 | return ret_val; | |
9499 | } | |
9500 | ||
9501 | to_state = map->map_state; | |
9502 | if ((u->new_level == 5) && (map->raid_level == 0)) { | |
9503 | map->num_members++; | |
9504 | /* this should not happen */ | |
9505 | if (u->new_disks[0] < 0) { | |
9506 | map->failed_disk_num = | |
9507 | map->num_members - 1; | |
9508 | to_state = IMSM_T_STATE_DEGRADED; | |
9509 | } else | |
9510 | to_state = IMSM_T_STATE_NORMAL; | |
9511 | } | |
8e59f3d8 | 9512 | migrate(new_dev, super, to_state, MIGR_GEN_MIGR); |
a29911da PC |
9513 | if (u->new_level > -1) |
9514 | map->raid_level = u->new_level; | |
238c0a71 | 9515 | migr_map = get_imsm_map(new_dev, MAP_1); |
a29911da PC |
9516 | if ((u->new_level == 5) && |
9517 | (migr_map->raid_level == 0)) { | |
9518 | int ord = map->num_members - 1; | |
9519 | migr_map->num_members--; | |
9520 | if (u->new_disks[0] < 0) | |
9521 | ord |= IMSM_ORD_REBUILD; | |
9522 | set_imsm_ord_tbl_ent(map, | |
9523 | map->num_members - 1, | |
9524 | ord); | |
9525 | } | |
9526 | id->dev = new_dev; | |
9527 | tofree = (void **)dev; | |
9528 | ||
4bba0439 PC |
9529 | /* update chunk size |
9530 | */ | |
06fb291a | 9531 | if (u->new_chunksize > 0) { |
9529d343 MD |
9532 | struct imsm_map *dest_map = |
9533 | get_imsm_map(dev, MAP_0); | |
06fb291a | 9534 | int used_disks = |
9529d343 | 9535 | imsm_num_data_members(dest_map); |
06fb291a PB |
9536 | |
9537 | if (used_disks == 0) | |
9538 | return ret_val; | |
9539 | ||
4bba0439 PC |
9540 | map->blocks_per_strip = |
9541 | __cpu_to_le16(u->new_chunksize * 2); | |
1c275381 | 9542 | update_num_data_stripes(map, imsm_dev_size(dev)); |
06fb291a | 9543 | } |
4bba0439 | 9544 | |
44490938 MD |
9545 | /* ensure blocks_per_member has valid value |
9546 | */ | |
9547 | set_blocks_per_member(map, | |
9548 | per_dev_array_size(map) + | |
9549 | NUM_BLOCKS_DIRTY_STRIPE_REGION); | |
9550 | ||
a29911da PC |
9551 | /* add disk |
9552 | */ | |
089f9d79 JS |
9553 | if (u->new_level != 5 || migr_map->raid_level != 0 || |
9554 | migr_map->raid_level == map->raid_level) | |
a29911da PC |
9555 | goto skip_disk_add; |
9556 | ||
9557 | if (u->new_disks[0] >= 0) { | |
9558 | /* use passes spare | |
9559 | */ | |
9560 | new_disk = get_disk_super(super, | |
9561 | major(u->new_disks[0]), | |
9562 | minor(u->new_disks[0])); | |
7a862a02 | 9563 | dprintf("imsm: new disk for reshape is: %i:%i (%p, index = %i)\n", |
a29911da PC |
9564 | major(u->new_disks[0]), |
9565 | minor(u->new_disks[0]), | |
9566 | new_disk, new_disk->index); | |
9567 | if (new_disk == NULL) | |
9568 | goto error_disk_add; | |
9569 | ||
9570 | new_disk->index = map->num_members - 1; | |
9571 | /* slot to fill in autolayout | |
9572 | */ | |
9573 | new_disk->raiddisk = new_disk->index; | |
9574 | new_disk->disk.status |= CONFIGURED_DISK; | |
9575 | new_disk->disk.status &= ~SPARE_DISK; | |
9576 | } else | |
9577 | goto error_disk_add; | |
9578 | ||
9579 | skip_disk_add: | |
9580 | *tofree = *space_list; | |
9581 | /* calculate new size | |
9582 | */ | |
f3871fdc | 9583 | imsm_set_array_size(new_dev, -1); |
a29911da PC |
9584 | |
9585 | ret_val = 1; | |
9586 | } | |
9587 | } | |
9588 | ||
9589 | if (tofree) | |
9590 | *space_list = tofree; | |
9591 | return ret_val; | |
9592 | ||
9593 | error_disk_add: | |
9594 | dprintf("Error: imsm: Cannot find disk.\n"); | |
9595 | return ret_val; | |
9596 | } | |
9597 | ||
f3871fdc AK |
9598 | static int apply_size_change_update(struct imsm_update_size_change *u, |
9599 | struct intel_super *super) | |
9600 | { | |
9601 | struct intel_dev *id; | |
9602 | int ret_val = 0; | |
9603 | ||
1ade5cc1 | 9604 | dprintf("(enter)\n"); |
089f9d79 | 9605 | if (u->subdev < 0 || u->subdev > 1) { |
f3871fdc AK |
9606 | dprintf("imsm: Error: Wrong subdev: %i\n", u->subdev); |
9607 | return ret_val; | |
9608 | } | |
9609 | ||
9610 | for (id = super->devlist ; id; id = id->next) { | |
9611 | if (id->index == (unsigned)u->subdev) { | |
9612 | struct imsm_dev *dev = get_imsm_dev(super, u->subdev); | |
9613 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
9529d343 | 9614 | int used_disks = imsm_num_data_members(map); |
f3871fdc | 9615 | unsigned long long blocks_per_member; |
44490938 MD |
9616 | unsigned long long new_size_per_disk; |
9617 | ||
9618 | if (used_disks == 0) | |
9619 | return 0; | |
f3871fdc AK |
9620 | |
9621 | /* calculate new size | |
9622 | */ | |
44490938 MD |
9623 | new_size_per_disk = u->new_size / used_disks; |
9624 | blocks_per_member = new_size_per_disk + | |
9625 | NUM_BLOCKS_DIRTY_STRIPE_REGION; | |
f3871fdc | 9626 | |
1c275381 MT |
9627 | imsm_set_array_size(dev, u->new_size); |
9628 | set_blocks_per_member(map, blocks_per_member); | |
9629 | update_num_data_stripes(map, u->new_size); | |
f3871fdc AK |
9630 | ret_val = 1; |
9631 | break; | |
9632 | } | |
9633 | } | |
9634 | ||
9635 | return ret_val; | |
9636 | } | |
9637 | ||
69d40de4 JR |
9638 | static int prepare_spare_to_activate(struct supertype *st, |
9639 | struct imsm_update_activate_spare *u) | |
9640 | { | |
9641 | struct intel_super *super = st->sb; | |
9642 | int prev_current_vol = super->current_vol; | |
9643 | struct active_array *a; | |
9644 | int ret = 1; | |
9645 | ||
9646 | for (a = st->arrays; a; a = a->next) | |
9647 | /* | |
9648 | * Additional initialization (adding bitmap header, filling | |
9649 | * the bitmap area with '1's to force initial rebuild for a whole | |
9650 | * data-area) is required when adding the spare to the volume | |
9651 | * with write-intent bitmap. | |
9652 | */ | |
9653 | if (a->info.container_member == u->array && | |
9654 | a->info.consistency_policy == CONSISTENCY_POLICY_BITMAP) { | |
9655 | struct dl *dl; | |
9656 | ||
9657 | for (dl = super->disks; dl; dl = dl->next) | |
9658 | if (dl == u->dl) | |
9659 | break; | |
9660 | if (!dl) | |
9661 | break; | |
9662 | ||
9663 | super->current_vol = u->array; | |
9664 | if (st->ss->write_bitmap(st, dl->fd, NoUpdate)) | |
9665 | ret = 0; | |
9666 | super->current_vol = prev_current_vol; | |
9667 | } | |
9668 | return ret; | |
9669 | } | |
9670 | ||
061d7da3 | 9671 | static int apply_update_activate_spare(struct imsm_update_activate_spare *u, |
ca9de185 | 9672 | struct intel_super *super, |
061d7da3 LO |
9673 | struct active_array *active_array) |
9674 | { | |
9675 | struct imsm_super *mpb = super->anchor; | |
9676 | struct imsm_dev *dev = get_imsm_dev(super, u->array); | |
238c0a71 | 9677 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
061d7da3 LO |
9678 | struct imsm_map *migr_map; |
9679 | struct active_array *a; | |
9680 | struct imsm_disk *disk; | |
9681 | __u8 to_state; | |
9682 | struct dl *dl; | |
9683 | unsigned int found; | |
9684 | int failed; | |
5961eeec | 9685 | int victim; |
061d7da3 | 9686 | int i; |
5961eeec | 9687 | int second_map_created = 0; |
061d7da3 | 9688 | |
5961eeec | 9689 | for (; u; u = u->next) { |
238c0a71 | 9690 | victim = get_imsm_disk_idx(dev, u->slot, MAP_X); |
061d7da3 | 9691 | |
5961eeec | 9692 | if (victim < 0) |
9693 | return 0; | |
061d7da3 | 9694 | |
5961eeec | 9695 | for (dl = super->disks; dl; dl = dl->next) |
9696 | if (dl == u->dl) | |
9697 | break; | |
061d7da3 | 9698 | |
5961eeec | 9699 | if (!dl) { |
7a862a02 | 9700 | pr_err("error: imsm_activate_spare passed an unknown disk (index: %d)\n", |
5961eeec | 9701 | u->dl->index); |
9702 | return 0; | |
9703 | } | |
061d7da3 | 9704 | |
5961eeec | 9705 | /* count failures (excluding rebuilds and the victim) |
9706 | * to determine map[0] state | |
9707 | */ | |
9708 | failed = 0; | |
9709 | for (i = 0; i < map->num_members; i++) { | |
9710 | if (i == u->slot) | |
9711 | continue; | |
9712 | disk = get_imsm_disk(super, | |
238c0a71 | 9713 | get_imsm_disk_idx(dev, i, MAP_X)); |
5961eeec | 9714 | if (!disk || is_failed(disk)) |
9715 | failed++; | |
9716 | } | |
061d7da3 | 9717 | |
5961eeec | 9718 | /* adding a pristine spare, assign a new index */ |
9719 | if (dl->index < 0) { | |
9720 | dl->index = super->anchor->num_disks; | |
9721 | super->anchor->num_disks++; | |
9722 | } | |
9723 | disk = &dl->disk; | |
9724 | disk->status |= CONFIGURED_DISK; | |
9725 | disk->status &= ~SPARE_DISK; | |
9726 | ||
9727 | /* mark rebuild */ | |
238c0a71 | 9728 | to_state = imsm_check_degraded(super, dev, failed, MAP_0); |
5961eeec | 9729 | if (!second_map_created) { |
9730 | second_map_created = 1; | |
9731 | map->map_state = IMSM_T_STATE_DEGRADED; | |
9732 | migrate(dev, super, to_state, MIGR_REBUILD); | |
9733 | } else | |
9734 | map->map_state = to_state; | |
238c0a71 | 9735 | migr_map = get_imsm_map(dev, MAP_1); |
5961eeec | 9736 | set_imsm_ord_tbl_ent(map, u->slot, dl->index); |
9737 | set_imsm_ord_tbl_ent(migr_map, u->slot, | |
9738 | dl->index | IMSM_ORD_REBUILD); | |
9739 | ||
9740 | /* update the family_num to mark a new container | |
9741 | * generation, being careful to record the existing | |
9742 | * family_num in orig_family_num to clean up after | |
9743 | * earlier mdadm versions that neglected to set it. | |
9744 | */ | |
9745 | if (mpb->orig_family_num == 0) | |
9746 | mpb->orig_family_num = mpb->family_num; | |
9747 | mpb->family_num += super->random; | |
9748 | ||
9749 | /* count arrays using the victim in the metadata */ | |
9750 | found = 0; | |
9751 | for (a = active_array; a ; a = a->next) { | |
76c152ca | 9752 | int dev_idx = a->info.container_member; |
061d7da3 | 9753 | |
76c152ca | 9754 | if (get_disk_slot_in_dev(super, dev_idx, victim) >= 0) |
5961eeec | 9755 | found++; |
9756 | } | |
061d7da3 | 9757 | |
5961eeec | 9758 | /* delete the victim if it is no longer being |
9759 | * utilized anywhere | |
061d7da3 | 9760 | */ |
5961eeec | 9761 | if (!found) { |
9762 | struct dl **dlp; | |
061d7da3 | 9763 | |
5961eeec | 9764 | /* We know that 'manager' isn't touching anything, |
9765 | * so it is safe to delete | |
9766 | */ | |
9767 | for (dlp = &super->disks; *dlp; dlp = &(*dlp)->next) | |
061d7da3 LO |
9768 | if ((*dlp)->index == victim) |
9769 | break; | |
5961eeec | 9770 | |
9771 | /* victim may be on the missing list */ | |
9772 | if (!*dlp) | |
9773 | for (dlp = &super->missing; *dlp; | |
9774 | dlp = &(*dlp)->next) | |
9775 | if ((*dlp)->index == victim) | |
9776 | break; | |
9777 | imsm_delete(super, dlp, victim); | |
9778 | } | |
061d7da3 LO |
9779 | } |
9780 | ||
9781 | return 1; | |
9782 | } | |
a29911da | 9783 | |
2e5dc010 N |
9784 | static int apply_reshape_container_disks_update(struct imsm_update_reshape *u, |
9785 | struct intel_super *super, | |
9786 | void ***space_list) | |
9787 | { | |
9788 | struct dl *new_disk; | |
9789 | struct intel_dev *id; | |
9790 | int i; | |
9791 | int delta_disks = u->new_raid_disks - u->old_raid_disks; | |
ee4beede | 9792 | int disk_count = u->old_raid_disks; |
2e5dc010 N |
9793 | void **tofree = NULL; |
9794 | int devices_to_reshape = 1; | |
9795 | struct imsm_super *mpb = super->anchor; | |
9796 | int ret_val = 0; | |
d098291a | 9797 | unsigned int dev_id; |
2e5dc010 | 9798 | |
1ade5cc1 | 9799 | dprintf("(enter)\n"); |
2e5dc010 N |
9800 | |
9801 | /* enable spares to use in array */ | |
9802 | for (i = 0; i < delta_disks; i++) { | |
9803 | new_disk = get_disk_super(super, | |
9804 | major(u->new_disks[i]), | |
9805 | minor(u->new_disks[i])); | |
7a862a02 | 9806 | dprintf("imsm: new disk for reshape is: %i:%i (%p, index = %i)\n", |
2e5dc010 N |
9807 | major(u->new_disks[i]), minor(u->new_disks[i]), |
9808 | new_disk, new_disk->index); | |
089f9d79 JS |
9809 | if (new_disk == NULL || |
9810 | (new_disk->index >= 0 && | |
9811 | new_disk->index < u->old_raid_disks)) | |
2e5dc010 | 9812 | goto update_reshape_exit; |
ee4beede | 9813 | new_disk->index = disk_count++; |
2e5dc010 N |
9814 | /* slot to fill in autolayout |
9815 | */ | |
9816 | new_disk->raiddisk = new_disk->index; | |
9817 | new_disk->disk.status |= | |
9818 | CONFIGURED_DISK; | |
9819 | new_disk->disk.status &= ~SPARE_DISK; | |
9820 | } | |
9821 | ||
ed7333bd AK |
9822 | dprintf("imsm: volume set mpb->num_raid_devs = %i\n", |
9823 | mpb->num_raid_devs); | |
2e5dc010 N |
9824 | /* manage changes in volume |
9825 | */ | |
d098291a | 9826 | for (dev_id = 0; dev_id < mpb->num_raid_devs; dev_id++) { |
2e5dc010 N |
9827 | void **sp = *space_list; |
9828 | struct imsm_dev *newdev; | |
9829 | struct imsm_map *newmap, *oldmap; | |
9830 | ||
d098291a AK |
9831 | for (id = super->devlist ; id; id = id->next) { |
9832 | if (id->index == dev_id) | |
9833 | break; | |
9834 | } | |
9835 | if (id == NULL) | |
9836 | break; | |
2e5dc010 N |
9837 | if (!sp) |
9838 | continue; | |
9839 | *space_list = *sp; | |
9840 | newdev = (void*)sp; | |
9841 | /* Copy the dev, but not (all of) the map */ | |
9842 | memcpy(newdev, id->dev, sizeof(*newdev)); | |
238c0a71 AK |
9843 | oldmap = get_imsm_map(id->dev, MAP_0); |
9844 | newmap = get_imsm_map(newdev, MAP_0); | |
2e5dc010 N |
9845 | /* Copy the current map */ |
9846 | memcpy(newmap, oldmap, sizeof_imsm_map(oldmap)); | |
9847 | /* update one device only | |
9848 | */ | |
9849 | if (devices_to_reshape) { | |
ed7333bd AK |
9850 | dprintf("imsm: modifying subdev: %i\n", |
9851 | id->index); | |
2e5dc010 N |
9852 | devices_to_reshape--; |
9853 | newdev->vol.migr_state = 1; | |
4036e7ee | 9854 | set_vol_curr_migr_unit(newdev, 0); |
ea672ee1 | 9855 | set_migr_type(newdev, MIGR_GEN_MIGR); |
2e5dc010 N |
9856 | newmap->num_members = u->new_raid_disks; |
9857 | for (i = 0; i < delta_disks; i++) { | |
9858 | set_imsm_ord_tbl_ent(newmap, | |
9859 | u->old_raid_disks + i, | |
9860 | u->old_raid_disks + i); | |
9861 | } | |
9862 | /* New map is correct, now need to save old map | |
9863 | */ | |
238c0a71 | 9864 | newmap = get_imsm_map(newdev, MAP_1); |
2e5dc010 N |
9865 | memcpy(newmap, oldmap, sizeof_imsm_map(oldmap)); |
9866 | ||
f3871fdc | 9867 | imsm_set_array_size(newdev, -1); |
2e5dc010 N |
9868 | } |
9869 | ||
9870 | sp = (void **)id->dev; | |
9871 | id->dev = newdev; | |
9872 | *sp = tofree; | |
9873 | tofree = sp; | |
8e59f3d8 AK |
9874 | |
9875 | /* Clear migration record */ | |
9876 | memset(super->migr_rec, 0, sizeof(struct migr_record)); | |
2e5dc010 | 9877 | } |
819bc634 AK |
9878 | if (tofree) |
9879 | *space_list = tofree; | |
2e5dc010 N |
9880 | ret_val = 1; |
9881 | ||
9882 | update_reshape_exit: | |
9883 | ||
9884 | return ret_val; | |
9885 | } | |
9886 | ||
bb025c2f | 9887 | static int apply_takeover_update(struct imsm_update_takeover *u, |
8ca6df95 KW |
9888 | struct intel_super *super, |
9889 | void ***space_list) | |
bb025c2f KW |
9890 | { |
9891 | struct imsm_dev *dev = NULL; | |
8ca6df95 KW |
9892 | struct intel_dev *dv; |
9893 | struct imsm_dev *dev_new; | |
bb025c2f KW |
9894 | struct imsm_map *map; |
9895 | struct dl *dm, *du; | |
8ca6df95 | 9896 | int i; |
bb025c2f KW |
9897 | |
9898 | for (dv = super->devlist; dv; dv = dv->next) | |
9899 | if (dv->index == (unsigned int)u->subarray) { | |
9900 | dev = dv->dev; | |
9901 | break; | |
9902 | } | |
9903 | ||
9904 | if (dev == NULL) | |
9905 | return 0; | |
9906 | ||
238c0a71 | 9907 | map = get_imsm_map(dev, MAP_0); |
bb025c2f KW |
9908 | |
9909 | if (u->direction == R10_TO_R0) { | |
43d5ec18 | 9910 | /* Number of failed disks must be half of initial disk number */ |
3b451610 AK |
9911 | if (imsm_count_failed(super, dev, MAP_0) != |
9912 | (map->num_members / 2)) | |
43d5ec18 KW |
9913 | return 0; |
9914 | ||
bb025c2f KW |
9915 | /* iterate through devices to mark removed disks as spare */ |
9916 | for (dm = super->disks; dm; dm = dm->next) { | |
9917 | if (dm->disk.status & FAILED_DISK) { | |
9918 | int idx = dm->index; | |
9919 | /* update indexes on the disk list */ | |
9920 | /* FIXME this loop-with-the-loop looks wrong, I'm not convinced | |
9921 | the index values will end up being correct.... NB */ | |
9922 | for (du = super->disks; du; du = du->next) | |
9923 | if (du->index > idx) | |
9924 | du->index--; | |
9925 | /* mark as spare disk */ | |
a8619d23 | 9926 | mark_spare(dm); |
bb025c2f KW |
9927 | } |
9928 | } | |
bb025c2f | 9929 | /* update map */ |
1c275381 | 9930 | map->num_members /= map->num_domains; |
bb025c2f | 9931 | map->map_state = IMSM_T_STATE_NORMAL; |
bb025c2f | 9932 | map->raid_level = 0; |
1c275381 MT |
9933 | set_num_domains(map); |
9934 | update_num_data_stripes(map, imsm_dev_size(dev)); | |
bb025c2f KW |
9935 | map->failed_disk_num = -1; |
9936 | } | |
9937 | ||
8ca6df95 KW |
9938 | if (u->direction == R0_TO_R10) { |
9939 | void **space; | |
4a353e6e | 9940 | |
8ca6df95 KW |
9941 | /* update slots in current disk list */ |
9942 | for (dm = super->disks; dm; dm = dm->next) { | |
9943 | if (dm->index >= 0) | |
9944 | dm->index *= 2; | |
9945 | } | |
9946 | /* create new *missing* disks */ | |
9947 | for (i = 0; i < map->num_members; i++) { | |
9948 | space = *space_list; | |
9949 | if (!space) | |
9950 | continue; | |
9951 | *space_list = *space; | |
9952 | du = (void *)space; | |
9953 | memcpy(du, super->disks, sizeof(*du)); | |
8ca6df95 KW |
9954 | du->fd = -1; |
9955 | du->minor = 0; | |
9956 | du->major = 0; | |
9957 | du->index = (i * 2) + 1; | |
9958 | sprintf((char *)du->disk.serial, | |
9959 | " MISSING_%d", du->index); | |
9960 | sprintf((char *)du->serial, | |
9961 | "MISSING_%d", du->index); | |
9962 | du->next = super->missing; | |
9963 | super->missing = du; | |
9964 | } | |
9965 | /* create new dev and map */ | |
9966 | space = *space_list; | |
9967 | if (!space) | |
9968 | return 0; | |
9969 | *space_list = *space; | |
9970 | dev_new = (void *)space; | |
9971 | memcpy(dev_new, dev, sizeof(*dev)); | |
9972 | /* update new map */ | |
238c0a71 | 9973 | map = get_imsm_map(dev_new, MAP_0); |
1c275381 | 9974 | |
1a2487c2 | 9975 | map->map_state = IMSM_T_STATE_DEGRADED; |
8ca6df95 | 9976 | map->raid_level = 1; |
1c275381 MT |
9977 | set_num_domains(map); |
9978 | map->num_members = map->num_members * map->num_domains; | |
9979 | update_num_data_stripes(map, imsm_dev_size(dev)); | |
4a353e6e | 9980 | |
8ca6df95 KW |
9981 | /* replace dev<->dev_new */ |
9982 | dv->dev = dev_new; | |
9983 | } | |
bb025c2f KW |
9984 | /* update disk order table */ |
9985 | for (du = super->disks; du; du = du->next) | |
9986 | if (du->index >= 0) | |
9987 | set_imsm_ord_tbl_ent(map, du->index, du->index); | |
8ca6df95 | 9988 | for (du = super->missing; du; du = du->next) |
1a2487c2 KW |
9989 | if (du->index >= 0) { |
9990 | set_imsm_ord_tbl_ent(map, du->index, du->index); | |
4c9e8c1e | 9991 | mark_missing(super, dv->dev, &du->disk, du->index); |
1a2487c2 | 9992 | } |
bb025c2f KW |
9993 | |
9994 | return 1; | |
9995 | } | |
9996 | ||
e8319a19 DW |
9997 | static void imsm_process_update(struct supertype *st, |
9998 | struct metadata_update *update) | |
9999 | { | |
10000 | /** | |
10001 | * crack open the metadata_update envelope to find the update record | |
10002 | * update can be one of: | |
d195167d AK |
10003 | * update_reshape_container_disks - all the arrays in the container |
10004 | * are being reshaped to have more devices. We need to mark | |
10005 | * the arrays for general migration and convert selected spares | |
10006 | * into active devices. | |
10007 | * update_activate_spare - a spare device has replaced a failed | |
1011e834 N |
10008 | * device in an array, update the disk_ord_tbl. If this disk is |
10009 | * present in all member arrays then also clear the SPARE_DISK | |
10010 | * flag | |
d195167d AK |
10011 | * update_create_array |
10012 | * update_kill_array | |
10013 | * update_rename_array | |
10014 | * update_add_remove_disk | |
e8319a19 DW |
10015 | */ |
10016 | struct intel_super *super = st->sb; | |
4d7b1503 | 10017 | struct imsm_super *mpb; |
e8319a19 DW |
10018 | enum imsm_update_type type = *(enum imsm_update_type *) update->buf; |
10019 | ||
4d7b1503 DW |
10020 | /* update requires a larger buf but the allocation failed */ |
10021 | if (super->next_len && !super->next_buf) { | |
10022 | super->next_len = 0; | |
10023 | return; | |
10024 | } | |
10025 | ||
10026 | if (super->next_buf) { | |
10027 | memcpy(super->next_buf, super->buf, super->len); | |
10028 | free(super->buf); | |
10029 | super->len = super->next_len; | |
10030 | super->buf = super->next_buf; | |
10031 | ||
10032 | super->next_len = 0; | |
10033 | super->next_buf = NULL; | |
10034 | } | |
10035 | ||
10036 | mpb = super->anchor; | |
10037 | ||
e8319a19 | 10038 | switch (type) { |
0ec5d470 AK |
10039 | case update_general_migration_checkpoint: { |
10040 | struct intel_dev *id; | |
10041 | struct imsm_update_general_migration_checkpoint *u = | |
10042 | (void *)update->buf; | |
10043 | ||
1ade5cc1 | 10044 | dprintf("called for update_general_migration_checkpoint\n"); |
0ec5d470 AK |
10045 | |
10046 | /* find device under general migration */ | |
10047 | for (id = super->devlist ; id; id = id->next) { | |
10048 | if (is_gen_migration(id->dev)) { | |
4036e7ee MT |
10049 | set_vol_curr_migr_unit(id->dev, |
10050 | u->curr_migr_unit); | |
0ec5d470 AK |
10051 | super->updates_pending++; |
10052 | } | |
10053 | } | |
10054 | break; | |
10055 | } | |
bb025c2f KW |
10056 | case update_takeover: { |
10057 | struct imsm_update_takeover *u = (void *)update->buf; | |
1a2487c2 KW |
10058 | if (apply_takeover_update(u, super, &update->space_list)) { |
10059 | imsm_update_version_info(super); | |
bb025c2f | 10060 | super->updates_pending++; |
1a2487c2 | 10061 | } |
bb025c2f KW |
10062 | break; |
10063 | } | |
10064 | ||
78b10e66 | 10065 | case update_reshape_container_disks: { |
d195167d | 10066 | struct imsm_update_reshape *u = (void *)update->buf; |
2e5dc010 N |
10067 | if (apply_reshape_container_disks_update( |
10068 | u, super, &update->space_list)) | |
10069 | super->updates_pending++; | |
78b10e66 N |
10070 | break; |
10071 | } | |
48c5303a | 10072 | case update_reshape_migration: { |
a29911da PC |
10073 | struct imsm_update_reshape_migration *u = (void *)update->buf; |
10074 | if (apply_reshape_migration_update( | |
10075 | u, super, &update->space_list)) | |
10076 | super->updates_pending++; | |
48c5303a PC |
10077 | break; |
10078 | } | |
f3871fdc AK |
10079 | case update_size_change: { |
10080 | struct imsm_update_size_change *u = (void *)update->buf; | |
10081 | if (apply_size_change_update(u, super)) | |
10082 | super->updates_pending++; | |
10083 | break; | |
10084 | } | |
e8319a19 | 10085 | case update_activate_spare: { |
1011e834 | 10086 | struct imsm_update_activate_spare *u = (void *) update->buf; |
69d40de4 JR |
10087 | |
10088 | if (prepare_spare_to_activate(st, u) && | |
10089 | apply_update_activate_spare(u, super, st->arrays)) | |
061d7da3 | 10090 | super->updates_pending++; |
8273f55e DW |
10091 | break; |
10092 | } | |
10093 | case update_create_array: { | |
10094 | /* someone wants to create a new array, we need to be aware of | |
10095 | * a few races/collisions: | |
10096 | * 1/ 'Create' called by two separate instances of mdadm | |
10097 | * 2/ 'Create' versus 'activate_spare': mdadm has chosen | |
10098 | * devices that have since been assimilated via | |
10099 | * activate_spare. | |
10100 | * In the event this update can not be carried out mdadm will | |
10101 | * (FIX ME) notice that its update did not take hold. | |
10102 | */ | |
10103 | struct imsm_update_create_array *u = (void *) update->buf; | |
ba2de7ba | 10104 | struct intel_dev *dv; |
8273f55e DW |
10105 | struct imsm_dev *dev; |
10106 | struct imsm_map *map, *new_map; | |
10107 | unsigned long long start, end; | |
10108 | unsigned long long new_start, new_end; | |
10109 | int i; | |
54c2c1ea DW |
10110 | struct disk_info *inf; |
10111 | struct dl *dl; | |
8273f55e DW |
10112 | |
10113 | /* handle racing creates: first come first serve */ | |
10114 | if (u->dev_idx < mpb->num_raid_devs) { | |
1ade5cc1 | 10115 | dprintf("subarray %d already defined\n", u->dev_idx); |
ba2de7ba | 10116 | goto create_error; |
8273f55e DW |
10117 | } |
10118 | ||
10119 | /* check update is next in sequence */ | |
10120 | if (u->dev_idx != mpb->num_raid_devs) { | |
1ade5cc1 N |
10121 | dprintf("can not create array %d expected index %d\n", |
10122 | u->dev_idx, mpb->num_raid_devs); | |
ba2de7ba | 10123 | goto create_error; |
8273f55e DW |
10124 | } |
10125 | ||
238c0a71 | 10126 | new_map = get_imsm_map(&u->dev, MAP_0); |
5551b113 | 10127 | new_start = pba_of_lba0(new_map); |
44490938 | 10128 | new_end = new_start + per_dev_array_size(new_map); |
54c2c1ea | 10129 | inf = get_disk_info(u); |
8273f55e DW |
10130 | |
10131 | /* handle activate_spare versus create race: | |
10132 | * check to make sure that overlapping arrays do not include | |
10133 | * overalpping disks | |
10134 | */ | |
10135 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
949c47a0 | 10136 | dev = get_imsm_dev(super, i); |
238c0a71 | 10137 | map = get_imsm_map(dev, MAP_0); |
5551b113 | 10138 | start = pba_of_lba0(map); |
44490938 | 10139 | end = start + per_dev_array_size(map); |
8273f55e DW |
10140 | if ((new_start >= start && new_start <= end) || |
10141 | (start >= new_start && start <= new_end)) | |
54c2c1ea DW |
10142 | /* overlap */; |
10143 | else | |
10144 | continue; | |
10145 | ||
10146 | if (disks_overlap(super, i, u)) { | |
1ade5cc1 | 10147 | dprintf("arrays overlap\n"); |
ba2de7ba | 10148 | goto create_error; |
8273f55e DW |
10149 | } |
10150 | } | |
8273f55e | 10151 | |
949c47a0 DW |
10152 | /* check that prepare update was successful */ |
10153 | if (!update->space) { | |
1ade5cc1 | 10154 | dprintf("prepare update failed\n"); |
ba2de7ba | 10155 | goto create_error; |
949c47a0 DW |
10156 | } |
10157 | ||
54c2c1ea DW |
10158 | /* check that all disks are still active before committing |
10159 | * changes. FIXME: could we instead handle this by creating a | |
10160 | * degraded array? That's probably not what the user expects, | |
10161 | * so better to drop this update on the floor. | |
10162 | */ | |
10163 | for (i = 0; i < new_map->num_members; i++) { | |
10164 | dl = serial_to_dl(inf[i].serial, super); | |
10165 | if (!dl) { | |
1ade5cc1 | 10166 | dprintf("disk disappeared\n"); |
ba2de7ba | 10167 | goto create_error; |
54c2c1ea | 10168 | } |
949c47a0 DW |
10169 | } |
10170 | ||
8273f55e | 10171 | super->updates_pending++; |
54c2c1ea DW |
10172 | |
10173 | /* convert spares to members and fixup ord_tbl */ | |
10174 | for (i = 0; i < new_map->num_members; i++) { | |
10175 | dl = serial_to_dl(inf[i].serial, super); | |
10176 | if (dl->index == -1) { | |
10177 | dl->index = mpb->num_disks; | |
10178 | mpb->num_disks++; | |
10179 | dl->disk.status |= CONFIGURED_DISK; | |
10180 | dl->disk.status &= ~SPARE_DISK; | |
10181 | } | |
10182 | set_imsm_ord_tbl_ent(new_map, i, dl->index); | |
10183 | } | |
10184 | ||
ba2de7ba DW |
10185 | dv = update->space; |
10186 | dev = dv->dev; | |
949c47a0 DW |
10187 | update->space = NULL; |
10188 | imsm_copy_dev(dev, &u->dev); | |
ba2de7ba DW |
10189 | dv->index = u->dev_idx; |
10190 | dv->next = super->devlist; | |
10191 | super->devlist = dv; | |
8273f55e | 10192 | mpb->num_raid_devs++; |
8273f55e | 10193 | |
4d1313e9 | 10194 | imsm_update_version_info(super); |
8273f55e | 10195 | break; |
ba2de7ba DW |
10196 | create_error: |
10197 | /* mdmon knows how to release update->space, but not | |
10198 | * ((struct intel_dev *) update->space)->dev | |
10199 | */ | |
10200 | if (update->space) { | |
10201 | dv = update->space; | |
10202 | free(dv->dev); | |
10203 | } | |
8273f55e | 10204 | break; |
e8319a19 | 10205 | } |
33414a01 DW |
10206 | case update_kill_array: { |
10207 | struct imsm_update_kill_array *u = (void *) update->buf; | |
10208 | int victim = u->dev_idx; | |
10209 | struct active_array *a; | |
10210 | struct intel_dev **dp; | |
33414a01 DW |
10211 | |
10212 | /* sanity check that we are not affecting the uuid of | |
10213 | * active arrays, or deleting an active array | |
10214 | * | |
10215 | * FIXME when immutable ids are available, but note that | |
10216 | * we'll also need to fixup the invalidated/active | |
10217 | * subarray indexes in mdstat | |
10218 | */ | |
10219 | for (a = st->arrays; a; a = a->next) | |
10220 | if (a->info.container_member >= victim) | |
10221 | break; | |
10222 | /* by definition if mdmon is running at least one array | |
10223 | * is active in the container, so checking | |
10224 | * mpb->num_raid_devs is just extra paranoia | |
10225 | */ | |
756a15f3 | 10226 | if (a || mpb->num_raid_devs == 1 || victim >= super->anchor->num_raid_devs) { |
33414a01 DW |
10227 | dprintf("failed to delete subarray-%d\n", victim); |
10228 | break; | |
10229 | } | |
10230 | ||
10231 | for (dp = &super->devlist; *dp;) | |
f21e18ca | 10232 | if ((*dp)->index == (unsigned)super->current_vol) { |
33414a01 DW |
10233 | *dp = (*dp)->next; |
10234 | } else { | |
f21e18ca | 10235 | if ((*dp)->index > (unsigned)victim) |
33414a01 DW |
10236 | (*dp)->index--; |
10237 | dp = &(*dp)->next; | |
10238 | } | |
10239 | mpb->num_raid_devs--; | |
10240 | super->updates_pending++; | |
10241 | break; | |
10242 | } | |
aa534678 DW |
10243 | case update_rename_array: { |
10244 | struct imsm_update_rename_array *u = (void *) update->buf; | |
10245 | char name[MAX_RAID_SERIAL_LEN+1]; | |
10246 | int target = u->dev_idx; | |
10247 | struct active_array *a; | |
10248 | struct imsm_dev *dev; | |
10249 | ||
10250 | /* sanity check that we are not affecting the uuid of | |
10251 | * an active array | |
10252 | */ | |
40659392 | 10253 | memset(name, 0, sizeof(name)); |
aa534678 DW |
10254 | snprintf(name, MAX_RAID_SERIAL_LEN, "%s", (char *) u->name); |
10255 | name[MAX_RAID_SERIAL_LEN] = '\0'; | |
10256 | for (a = st->arrays; a; a = a->next) | |
10257 | if (a->info.container_member == target) | |
10258 | break; | |
10259 | dev = get_imsm_dev(super, u->dev_idx); | |
e2eb503b MT |
10260 | |
10261 | if (a || !dev || imsm_is_name_allowed(super, name, 0) == false) { | |
aa534678 DW |
10262 | dprintf("failed to rename subarray-%d\n", target); |
10263 | break; | |
10264 | } | |
10265 | ||
40659392 | 10266 | memcpy(dev->volume, name, MAX_RAID_SERIAL_LEN); |
aa534678 DW |
10267 | super->updates_pending++; |
10268 | break; | |
10269 | } | |
1a64be56 | 10270 | case update_add_remove_disk: { |
43dad3d6 | 10271 | /* we may be able to repair some arrays if disks are |
095b8088 | 10272 | * being added, check the status of add_remove_disk |
1a64be56 LM |
10273 | * if discs has been added. |
10274 | */ | |
10275 | if (add_remove_disk_update(super)) { | |
43dad3d6 | 10276 | struct active_array *a; |
072b727f DW |
10277 | |
10278 | super->updates_pending++; | |
1a64be56 | 10279 | for (a = st->arrays; a; a = a->next) |
43dad3d6 DW |
10280 | a->check_degraded = 1; |
10281 | } | |
43dad3d6 | 10282 | break; |
e8319a19 | 10283 | } |
bbab0940 TM |
10284 | case update_prealloc_badblocks_mem: |
10285 | break; | |
e6e9dd3f AP |
10286 | case update_rwh_policy: { |
10287 | struct imsm_update_rwh_policy *u = (void *)update->buf; | |
10288 | int target = u->dev_idx; | |
10289 | struct imsm_dev *dev = get_imsm_dev(super, target); | |
e6e9dd3f AP |
10290 | |
10291 | if (dev->rwh_policy != u->new_policy) { | |
10292 | dev->rwh_policy = u->new_policy; | |
10293 | super->updates_pending++; | |
10294 | } | |
10295 | break; | |
10296 | } | |
1a64be56 | 10297 | default: |
ebf3be99 | 10298 | pr_err("error: unsupported process update type:(type: %d)\n", type); |
1a64be56 | 10299 | } |
e8319a19 | 10300 | } |
88758e9d | 10301 | |
bc0b9d34 PC |
10302 | static struct mdinfo *get_spares_for_grow(struct supertype *st); |
10303 | ||
5fe6f031 N |
10304 | static int imsm_prepare_update(struct supertype *st, |
10305 | struct metadata_update *update) | |
8273f55e | 10306 | { |
949c47a0 | 10307 | /** |
4d7b1503 DW |
10308 | * Allocate space to hold new disk entries, raid-device entries or a new |
10309 | * mpb if necessary. The manager synchronously waits for updates to | |
10310 | * complete in the monitor, so new mpb buffers allocated here can be | |
10311 | * integrated by the monitor thread without worrying about live pointers | |
10312 | * in the manager thread. | |
8273f55e | 10313 | */ |
095b8088 | 10314 | enum imsm_update_type type; |
4d7b1503 | 10315 | struct intel_super *super = st->sb; |
f36a9ecd | 10316 | unsigned int sector_size = super->sector_size; |
4d7b1503 DW |
10317 | struct imsm_super *mpb = super->anchor; |
10318 | size_t buf_len; | |
10319 | size_t len = 0; | |
949c47a0 | 10320 | |
095b8088 N |
10321 | if (update->len < (int)sizeof(type)) |
10322 | return 0; | |
10323 | ||
10324 | type = *(enum imsm_update_type *) update->buf; | |
10325 | ||
949c47a0 | 10326 | switch (type) { |
0ec5d470 | 10327 | case update_general_migration_checkpoint: |
095b8088 N |
10328 | if (update->len < (int)sizeof(struct imsm_update_general_migration_checkpoint)) |
10329 | return 0; | |
1ade5cc1 | 10330 | dprintf("called for update_general_migration_checkpoint\n"); |
0ec5d470 | 10331 | break; |
abedf5fc KW |
10332 | case update_takeover: { |
10333 | struct imsm_update_takeover *u = (void *)update->buf; | |
095b8088 N |
10334 | if (update->len < (int)sizeof(*u)) |
10335 | return 0; | |
abedf5fc KW |
10336 | if (u->direction == R0_TO_R10) { |
10337 | void **tail = (void **)&update->space_list; | |
10338 | struct imsm_dev *dev = get_imsm_dev(super, u->subarray); | |
238c0a71 | 10339 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
abedf5fc KW |
10340 | int num_members = map->num_members; |
10341 | void *space; | |
10342 | int size, i; | |
abedf5fc KW |
10343 | /* allocate memory for added disks */ |
10344 | for (i = 0; i < num_members; i++) { | |
10345 | size = sizeof(struct dl); | |
503975b9 | 10346 | space = xmalloc(size); |
abedf5fc KW |
10347 | *tail = space; |
10348 | tail = space; | |
10349 | *tail = NULL; | |
10350 | } | |
10351 | /* allocate memory for new device */ | |
10352 | size = sizeof_imsm_dev(super->devlist->dev, 0) + | |
10353 | (num_members * sizeof(__u32)); | |
503975b9 N |
10354 | space = xmalloc(size); |
10355 | *tail = space; | |
10356 | tail = space; | |
10357 | *tail = NULL; | |
10358 | len = disks_to_mpb_size(num_members * 2); | |
abedf5fc KW |
10359 | } |
10360 | ||
10361 | break; | |
10362 | } | |
78b10e66 | 10363 | case update_reshape_container_disks: { |
d195167d AK |
10364 | /* Every raid device in the container is about to |
10365 | * gain some more devices, and we will enter a | |
10366 | * reconfiguration. | |
10367 | * So each 'imsm_map' will be bigger, and the imsm_vol | |
10368 | * will now hold 2 of them. | |
10369 | * Thus we need new 'struct imsm_dev' allocations sized | |
10370 | * as sizeof_imsm_dev but with more devices in both maps. | |
10371 | */ | |
10372 | struct imsm_update_reshape *u = (void *)update->buf; | |
10373 | struct intel_dev *dl; | |
10374 | void **space_tail = (void**)&update->space_list; | |
10375 | ||
095b8088 N |
10376 | if (update->len < (int)sizeof(*u)) |
10377 | return 0; | |
10378 | ||
1ade5cc1 | 10379 | dprintf("for update_reshape\n"); |
d195167d AK |
10380 | |
10381 | for (dl = super->devlist; dl; dl = dl->next) { | |
10382 | int size = sizeof_imsm_dev(dl->dev, 1); | |
10383 | void *s; | |
d677e0b8 AK |
10384 | if (u->new_raid_disks > u->old_raid_disks) |
10385 | size += sizeof(__u32)*2* | |
10386 | (u->new_raid_disks - u->old_raid_disks); | |
503975b9 | 10387 | s = xmalloc(size); |
d195167d AK |
10388 | *space_tail = s; |
10389 | space_tail = s; | |
10390 | *space_tail = NULL; | |
10391 | } | |
10392 | ||
10393 | len = disks_to_mpb_size(u->new_raid_disks); | |
10394 | dprintf("New anchor length is %llu\n", (unsigned long long)len); | |
78b10e66 N |
10395 | break; |
10396 | } | |
48c5303a | 10397 | case update_reshape_migration: { |
bc0b9d34 PC |
10398 | /* for migration level 0->5 we need to add disks |
10399 | * so the same as for container operation we will copy | |
10400 | * device to the bigger location. | |
10401 | * in memory prepared device and new disk area are prepared | |
10402 | * for usage in process update | |
10403 | */ | |
10404 | struct imsm_update_reshape_migration *u = (void *)update->buf; | |
10405 | struct intel_dev *id; | |
10406 | void **space_tail = (void **)&update->space_list; | |
10407 | int size; | |
10408 | void *s; | |
10409 | int current_level = -1; | |
10410 | ||
095b8088 N |
10411 | if (update->len < (int)sizeof(*u)) |
10412 | return 0; | |
10413 | ||
1ade5cc1 | 10414 | dprintf("for update_reshape\n"); |
bc0b9d34 PC |
10415 | |
10416 | /* add space for bigger array in update | |
10417 | */ | |
10418 | for (id = super->devlist; id; id = id->next) { | |
10419 | if (id->index == (unsigned)u->subdev) { | |
10420 | size = sizeof_imsm_dev(id->dev, 1); | |
10421 | if (u->new_raid_disks > u->old_raid_disks) | |
10422 | size += sizeof(__u32)*2* | |
10423 | (u->new_raid_disks - u->old_raid_disks); | |
503975b9 | 10424 | s = xmalloc(size); |
bc0b9d34 PC |
10425 | *space_tail = s; |
10426 | space_tail = s; | |
10427 | *space_tail = NULL; | |
10428 | break; | |
10429 | } | |
10430 | } | |
10431 | if (update->space_list == NULL) | |
10432 | break; | |
10433 | ||
10434 | /* add space for disk in update | |
10435 | */ | |
10436 | size = sizeof(struct dl); | |
503975b9 | 10437 | s = xmalloc(size); |
bc0b9d34 PC |
10438 | *space_tail = s; |
10439 | space_tail = s; | |
10440 | *space_tail = NULL; | |
10441 | ||
10442 | /* add spare device to update | |
10443 | */ | |
10444 | for (id = super->devlist ; id; id = id->next) | |
10445 | if (id->index == (unsigned)u->subdev) { | |
10446 | struct imsm_dev *dev; | |
10447 | struct imsm_map *map; | |
10448 | ||
10449 | dev = get_imsm_dev(super, u->subdev); | |
238c0a71 | 10450 | map = get_imsm_map(dev, MAP_0); |
bc0b9d34 PC |
10451 | current_level = map->raid_level; |
10452 | break; | |
10453 | } | |
089f9d79 | 10454 | if (u->new_level == 5 && u->new_level != current_level) { |
bc0b9d34 PC |
10455 | struct mdinfo *spares; |
10456 | ||
10457 | spares = get_spares_for_grow(st); | |
10458 | if (spares) { | |
10459 | struct dl *dl; | |
10460 | struct mdinfo *dev; | |
10461 | ||
10462 | dev = spares->devs; | |
10463 | if (dev) { | |
10464 | u->new_disks[0] = | |
10465 | makedev(dev->disk.major, | |
10466 | dev->disk.minor); | |
10467 | dl = get_disk_super(super, | |
10468 | dev->disk.major, | |
10469 | dev->disk.minor); | |
10470 | dl->index = u->old_raid_disks; | |
10471 | dev = dev->next; | |
10472 | } | |
10473 | sysfs_free(spares); | |
10474 | } | |
10475 | } | |
10476 | len = disks_to_mpb_size(u->new_raid_disks); | |
10477 | dprintf("New anchor length is %llu\n", (unsigned long long)len); | |
48c5303a PC |
10478 | break; |
10479 | } | |
f3871fdc | 10480 | case update_size_change: { |
095b8088 N |
10481 | if (update->len < (int)sizeof(struct imsm_update_size_change)) |
10482 | return 0; | |
10483 | break; | |
10484 | } | |
10485 | case update_activate_spare: { | |
10486 | if (update->len < (int)sizeof(struct imsm_update_activate_spare)) | |
10487 | return 0; | |
f3871fdc AK |
10488 | break; |
10489 | } | |
949c47a0 DW |
10490 | case update_create_array: { |
10491 | struct imsm_update_create_array *u = (void *) update->buf; | |
ba2de7ba | 10492 | struct intel_dev *dv; |
54c2c1ea | 10493 | struct imsm_dev *dev = &u->dev; |
238c0a71 | 10494 | struct imsm_map *map = get_imsm_map(dev, MAP_0); |
54c2c1ea DW |
10495 | struct dl *dl; |
10496 | struct disk_info *inf; | |
10497 | int i; | |
10498 | int activate = 0; | |
949c47a0 | 10499 | |
095b8088 N |
10500 | if (update->len < (int)sizeof(*u)) |
10501 | return 0; | |
10502 | ||
54c2c1ea DW |
10503 | inf = get_disk_info(u); |
10504 | len = sizeof_imsm_dev(dev, 1); | |
ba2de7ba | 10505 | /* allocate a new super->devlist entry */ |
503975b9 N |
10506 | dv = xmalloc(sizeof(*dv)); |
10507 | dv->dev = xmalloc(len); | |
10508 | update->space = dv; | |
949c47a0 | 10509 | |
54c2c1ea DW |
10510 | /* count how many spares will be converted to members */ |
10511 | for (i = 0; i < map->num_members; i++) { | |
10512 | dl = serial_to_dl(inf[i].serial, super); | |
10513 | if (!dl) { | |
10514 | /* hmm maybe it failed?, nothing we can do about | |
10515 | * it here | |
10516 | */ | |
10517 | continue; | |
10518 | } | |
10519 | if (count_memberships(dl, super) == 0) | |
10520 | activate++; | |
10521 | } | |
10522 | len += activate * sizeof(struct imsm_disk); | |
949c47a0 | 10523 | break; |
095b8088 N |
10524 | } |
10525 | case update_kill_array: { | |
10526 | if (update->len < (int)sizeof(struct imsm_update_kill_array)) | |
10527 | return 0; | |
949c47a0 DW |
10528 | break; |
10529 | } | |
095b8088 N |
10530 | case update_rename_array: { |
10531 | if (update->len < (int)sizeof(struct imsm_update_rename_array)) | |
10532 | return 0; | |
10533 | break; | |
10534 | } | |
10535 | case update_add_remove_disk: | |
10536 | /* no update->len needed */ | |
10537 | break; | |
bbab0940 TM |
10538 | case update_prealloc_badblocks_mem: |
10539 | super->extra_space += sizeof(struct bbm_log) - | |
10540 | get_imsm_bbm_log_size(super->bbm_log); | |
10541 | break; | |
e6e9dd3f AP |
10542 | case update_rwh_policy: { |
10543 | if (update->len < (int)sizeof(struct imsm_update_rwh_policy)) | |
10544 | return 0; | |
10545 | break; | |
10546 | } | |
095b8088 N |
10547 | default: |
10548 | return 0; | |
949c47a0 | 10549 | } |
8273f55e | 10550 | |
4d7b1503 DW |
10551 | /* check if we need a larger metadata buffer */ |
10552 | if (super->next_buf) | |
10553 | buf_len = super->next_len; | |
10554 | else | |
10555 | buf_len = super->len; | |
10556 | ||
bbab0940 | 10557 | if (__le32_to_cpu(mpb->mpb_size) + super->extra_space + len > buf_len) { |
4d7b1503 DW |
10558 | /* ok we need a larger buf than what is currently allocated |
10559 | * if this allocation fails process_update will notice that | |
10560 | * ->next_len is set and ->next_buf is NULL | |
10561 | */ | |
bbab0940 TM |
10562 | buf_len = ROUND_UP(__le32_to_cpu(mpb->mpb_size) + |
10563 | super->extra_space + len, sector_size); | |
4d7b1503 DW |
10564 | if (super->next_buf) |
10565 | free(super->next_buf); | |
10566 | ||
10567 | super->next_len = buf_len; | |
f36a9ecd | 10568 | if (posix_memalign(&super->next_buf, sector_size, buf_len) == 0) |
1f45a8ad DW |
10569 | memset(super->next_buf, 0, buf_len); |
10570 | else | |
4d7b1503 DW |
10571 | super->next_buf = NULL; |
10572 | } | |
5fe6f031 | 10573 | return 1; |
8273f55e DW |
10574 | } |
10575 | ||
ae6aad82 | 10576 | /* must be called while manager is quiesced */ |
f21e18ca | 10577 | static void imsm_delete(struct intel_super *super, struct dl **dlp, unsigned index) |
ae6aad82 DW |
10578 | { |
10579 | struct imsm_super *mpb = super->anchor; | |
ae6aad82 DW |
10580 | struct dl *iter; |
10581 | struct imsm_dev *dev; | |
10582 | struct imsm_map *map; | |
4c9e8c1e | 10583 | unsigned int i, j, num_members; |
fb12a745 | 10584 | __u32 ord, ord_map0; |
4c9e8c1e | 10585 | struct bbm_log *log = super->bbm_log; |
ae6aad82 | 10586 | |
1ade5cc1 | 10587 | dprintf("deleting device[%d] from imsm_super\n", index); |
ae6aad82 DW |
10588 | |
10589 | /* shift all indexes down one */ | |
10590 | for (iter = super->disks; iter; iter = iter->next) | |
f21e18ca | 10591 | if (iter->index > (int)index) |
ae6aad82 | 10592 | iter->index--; |
47ee5a45 | 10593 | for (iter = super->missing; iter; iter = iter->next) |
f21e18ca | 10594 | if (iter->index > (int)index) |
47ee5a45 | 10595 | iter->index--; |
ae6aad82 DW |
10596 | |
10597 | for (i = 0; i < mpb->num_raid_devs; i++) { | |
10598 | dev = get_imsm_dev(super, i); | |
238c0a71 | 10599 | map = get_imsm_map(dev, MAP_0); |
24565c9a DW |
10600 | num_members = map->num_members; |
10601 | for (j = 0; j < num_members; j++) { | |
10602 | /* update ord entries being careful not to propagate | |
10603 | * ord-flags to the first map | |
10604 | */ | |
238c0a71 | 10605 | ord = get_imsm_ord_tbl_ent(dev, j, MAP_X); |
fb12a745 | 10606 | ord_map0 = get_imsm_ord_tbl_ent(dev, j, MAP_0); |
ae6aad82 | 10607 | |
24565c9a DW |
10608 | if (ord_to_idx(ord) <= index) |
10609 | continue; | |
ae6aad82 | 10610 | |
238c0a71 | 10611 | map = get_imsm_map(dev, MAP_0); |
fb12a745 | 10612 | set_imsm_ord_tbl_ent(map, j, ord_map0 - 1); |
238c0a71 | 10613 | map = get_imsm_map(dev, MAP_1); |
24565c9a DW |
10614 | if (map) |
10615 | set_imsm_ord_tbl_ent(map, j, ord - 1); | |
ae6aad82 DW |
10616 | } |
10617 | } | |
10618 | ||
4c9e8c1e TM |
10619 | for (i = 0; i < log->entry_count; i++) { |
10620 | struct bbm_log_entry *entry = &log->marked_block_entries[i]; | |
10621 | ||
10622 | if (entry->disk_ordinal <= index) | |
10623 | continue; | |
10624 | entry->disk_ordinal--; | |
10625 | } | |
10626 | ||
ae6aad82 DW |
10627 | mpb->num_disks--; |
10628 | super->updates_pending++; | |
24565c9a DW |
10629 | if (*dlp) { |
10630 | struct dl *dl = *dlp; | |
10631 | ||
10632 | *dlp = (*dlp)->next; | |
3a85bf0e | 10633 | __free_imsm_disk(dl, 1); |
24565c9a | 10634 | } |
ae6aad82 | 10635 | } |
9a717282 | 10636 | |
9a717282 AK |
10637 | static int imsm_get_allowed_degradation(int level, int raid_disks, |
10638 | struct intel_super *super, | |
10639 | struct imsm_dev *dev) | |
10640 | { | |
10641 | switch (level) { | |
bf5cf7c7 | 10642 | case 1: |
9a717282 AK |
10643 | case 10:{ |
10644 | int ret_val = 0; | |
10645 | struct imsm_map *map; | |
10646 | int i; | |
10647 | ||
10648 | ret_val = raid_disks/2; | |
10649 | /* check map if all disks pairs not failed | |
10650 | * in both maps | |
10651 | */ | |
238c0a71 | 10652 | map = get_imsm_map(dev, MAP_0); |
9a717282 AK |
10653 | for (i = 0; i < ret_val; i++) { |
10654 | int degradation = 0; | |
10655 | if (get_imsm_disk(super, i) == NULL) | |
10656 | degradation++; | |
10657 | if (get_imsm_disk(super, i + 1) == NULL) | |
10658 | degradation++; | |
10659 | if (degradation == 2) | |
10660 | return 0; | |
10661 | } | |
238c0a71 | 10662 | map = get_imsm_map(dev, MAP_1); |
9a717282 AK |
10663 | /* if there is no second map |
10664 | * result can be returned | |
10665 | */ | |
10666 | if (map == NULL) | |
10667 | return ret_val; | |
10668 | /* check degradation in second map | |
10669 | */ | |
10670 | for (i = 0; i < ret_val; i++) { | |
10671 | int degradation = 0; | |
10672 | if (get_imsm_disk(super, i) == NULL) | |
10673 | degradation++; | |
10674 | if (get_imsm_disk(super, i + 1) == NULL) | |
10675 | degradation++; | |
10676 | if (degradation == 2) | |
10677 | return 0; | |
10678 | } | |
10679 | return ret_val; | |
10680 | } | |
10681 | case 5: | |
10682 | return 1; | |
10683 | case 6: | |
10684 | return 2; | |
10685 | default: | |
10686 | return 0; | |
10687 | } | |
10688 | } | |
10689 | ||
d31ad643 PB |
10690 | /******************************************************************************* |
10691 | * Function: validate_container_imsm | |
10692 | * Description: This routine validates container after assemble, | |
10693 | * eg. if devices in container are under the same controller. | |
10694 | * | |
10695 | * Parameters: | |
10696 | * info : linked list with info about devices used in array | |
10697 | * Returns: | |
10698 | * 1 : HBA mismatch | |
10699 | * 0 : Success | |
10700 | ******************************************************************************/ | |
10701 | int validate_container_imsm(struct mdinfo *info) | |
10702 | { | |
420dafcd | 10703 | if (check_no_platform()) |
6b781d33 | 10704 | return 0; |
d31ad643 | 10705 | |
6b781d33 AP |
10706 | struct sys_dev *idev; |
10707 | struct sys_dev *hba = NULL; | |
10708 | struct sys_dev *intel_devices = find_intel_devices(); | |
10709 | char *dev_path = devt_to_devpath(makedev(info->disk.major, | |
7c798f87 | 10710 | info->disk.minor), 1, NULL); |
6b781d33 AP |
10711 | |
10712 | for (idev = intel_devices; idev; idev = idev->next) { | |
10713 | if (dev_path && strstr(dev_path, idev->path)) { | |
10714 | hba = idev; | |
10715 | break; | |
d31ad643 | 10716 | } |
6b781d33 AP |
10717 | } |
10718 | if (dev_path) | |
d31ad643 PB |
10719 | free(dev_path); |
10720 | ||
6b781d33 AP |
10721 | if (!hba) { |
10722 | pr_err("WARNING - Cannot detect HBA for device %s!\n", | |
10723 | devid2kname(makedev(info->disk.major, info->disk.minor))); | |
10724 | return 1; | |
10725 | } | |
10726 | ||
10727 | const struct imsm_orom *orom = get_orom_by_device_id(hba->dev_id); | |
10728 | struct mdinfo *dev; | |
10729 | ||
10730 | for (dev = info->next; dev; dev = dev->next) { | |
7c798f87 MT |
10731 | dev_path = devt_to_devpath(makedev(dev->disk.major, |
10732 | dev->disk.minor), 1, NULL); | |
6b781d33 AP |
10733 | |
10734 | struct sys_dev *hba2 = NULL; | |
10735 | for (idev = intel_devices; idev; idev = idev->next) { | |
10736 | if (dev_path && strstr(dev_path, idev->path)) { | |
10737 | hba2 = idev; | |
10738 | break; | |
d31ad643 PB |
10739 | } |
10740 | } | |
6b781d33 AP |
10741 | if (dev_path) |
10742 | free(dev_path); | |
10743 | ||
10744 | const struct imsm_orom *orom2 = hba2 == NULL ? NULL : | |
10745 | get_orom_by_device_id(hba2->dev_id); | |
10746 | ||
10747 | if (hba2 && hba->type != hba2->type) { | |
10748 | pr_err("WARNING - HBAs of devices do not match %s != %s\n", | |
10749 | get_sys_dev_type(hba->type), get_sys_dev_type(hba2->type)); | |
10750 | return 1; | |
10751 | } | |
10752 | ||
07cb1e57 | 10753 | if (orom != orom2) { |
6b781d33 AP |
10754 | pr_err("WARNING - IMSM container assembled with disks under different HBAs!\n" |
10755 | " This operation is not supported and can lead to data loss.\n"); | |
10756 | return 1; | |
10757 | } | |
10758 | ||
10759 | if (!orom) { | |
10760 | pr_err("WARNING - IMSM container assembled with disks under HBAs without IMSM platform support!\n" | |
10761 | " This operation is not supported and can lead to data loss.\n"); | |
10762 | return 1; | |
10763 | } | |
d31ad643 | 10764 | } |
6b781d33 | 10765 | |
d31ad643 PB |
10766 | return 0; |
10767 | } | |
32141c17 | 10768 | |
6f50473f TM |
10769 | /******************************************************************************* |
10770 | * Function: imsm_record_badblock | |
10771 | * Description: This routine stores new bad block record in BBM log | |
10772 | * | |
10773 | * Parameters: | |
10774 | * a : array containing a bad block | |
10775 | * slot : disk number containing a bad block | |
10776 | * sector : bad block sector | |
10777 | * length : bad block sectors range | |
10778 | * Returns: | |
10779 | * 1 : Success | |
10780 | * 0 : Error | |
10781 | ******************************************************************************/ | |
10782 | static int imsm_record_badblock(struct active_array *a, int slot, | |
10783 | unsigned long long sector, int length) | |
10784 | { | |
10785 | struct intel_super *super = a->container->sb; | |
10786 | int ord; | |
10787 | int ret; | |
10788 | ||
10789 | ord = imsm_disk_slot_to_ord(a, slot); | |
10790 | if (ord < 0) | |
10791 | return 0; | |
10792 | ||
10793 | ret = record_new_badblock(super->bbm_log, ord_to_idx(ord), sector, | |
10794 | length); | |
10795 | if (ret) | |
10796 | super->updates_pending++; | |
10797 | ||
10798 | return ret; | |
10799 | } | |
c07a5a4f TM |
10800 | /******************************************************************************* |
10801 | * Function: imsm_clear_badblock | |
10802 | * Description: This routine clears bad block record from BBM log | |
10803 | * | |
10804 | * Parameters: | |
10805 | * a : array containing a bad block | |
10806 | * slot : disk number containing a bad block | |
10807 | * sector : bad block sector | |
10808 | * length : bad block sectors range | |
10809 | * Returns: | |
10810 | * 1 : Success | |
10811 | * 0 : Error | |
10812 | ******************************************************************************/ | |
10813 | static int imsm_clear_badblock(struct active_array *a, int slot, | |
10814 | unsigned long long sector, int length) | |
10815 | { | |
10816 | struct intel_super *super = a->container->sb; | |
10817 | int ord; | |
10818 | int ret; | |
10819 | ||
10820 | ord = imsm_disk_slot_to_ord(a, slot); | |
10821 | if (ord < 0) | |
10822 | return 0; | |
10823 | ||
10824 | ret = clear_badblock(super->bbm_log, ord_to_idx(ord), sector, length); | |
10825 | if (ret) | |
10826 | super->updates_pending++; | |
10827 | ||
10828 | return ret; | |
10829 | } | |
928f1424 TM |
10830 | /******************************************************************************* |
10831 | * Function: imsm_get_badblocks | |
10832 | * Description: This routine get list of bad blocks for an array | |
10833 | * | |
10834 | * Parameters: | |
10835 | * a : array | |
10836 | * slot : disk number | |
10837 | * Returns: | |
10838 | * bb : structure containing bad blocks | |
10839 | * NULL : error | |
10840 | ******************************************************************************/ | |
10841 | static struct md_bb *imsm_get_badblocks(struct active_array *a, int slot) | |
10842 | { | |
10843 | int inst = a->info.container_member; | |
10844 | struct intel_super *super = a->container->sb; | |
10845 | struct imsm_dev *dev = get_imsm_dev(super, inst); | |
10846 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
10847 | int ord; | |
10848 | ||
10849 | ord = imsm_disk_slot_to_ord(a, slot); | |
10850 | if (ord < 0) | |
10851 | return NULL; | |
10852 | ||
10853 | get_volume_badblocks(super->bbm_log, ord_to_idx(ord), pba_of_lba0(map), | |
44490938 | 10854 | per_dev_array_size(map), &super->bb); |
928f1424 TM |
10855 | |
10856 | return &super->bb; | |
10857 | } | |
27156a57 TM |
10858 | /******************************************************************************* |
10859 | * Function: examine_badblocks_imsm | |
10860 | * Description: Prints list of bad blocks on a disk to the standard output | |
10861 | * | |
10862 | * Parameters: | |
10863 | * st : metadata handler | |
10864 | * fd : open file descriptor for device | |
10865 | * devname : device name | |
10866 | * Returns: | |
10867 | * 0 : Success | |
10868 | * 1 : Error | |
10869 | ******************************************************************************/ | |
10870 | static int examine_badblocks_imsm(struct supertype *st, int fd, char *devname) | |
10871 | { | |
10872 | struct intel_super *super = st->sb; | |
10873 | struct bbm_log *log = super->bbm_log; | |
10874 | struct dl *d = NULL; | |
10875 | int any = 0; | |
10876 | ||
10877 | for (d = super->disks; d ; d = d->next) { | |
10878 | if (strcmp(d->devname, devname) == 0) | |
10879 | break; | |
10880 | } | |
10881 | ||
10882 | if ((d == NULL) || (d->index < 0)) { /* serial mismatch probably */ | |
10883 | pr_err("%s doesn't appear to be part of a raid array\n", | |
10884 | devname); | |
10885 | return 1; | |
10886 | } | |
10887 | ||
10888 | if (log != NULL) { | |
10889 | unsigned int i; | |
10890 | struct bbm_log_entry *entry = &log->marked_block_entries[0]; | |
10891 | ||
10892 | for (i = 0; i < log->entry_count; i++) { | |
10893 | if (entry[i].disk_ordinal == d->index) { | |
10894 | unsigned long long sector = __le48_to_cpu( | |
10895 | &entry[i].defective_block_start); | |
10896 | int cnt = entry[i].marked_count + 1; | |
10897 | ||
10898 | if (!any) { | |
10899 | printf("Bad-blocks on %s:\n", devname); | |
10900 | any = 1; | |
10901 | } | |
10902 | ||
10903 | printf("%20llu for %d sectors\n", sector, cnt); | |
10904 | } | |
10905 | } | |
10906 | } | |
10907 | ||
10908 | if (!any) | |
10909 | printf("No bad-blocks list configured on %s\n", devname); | |
10910 | ||
10911 | return 0; | |
10912 | } | |
687629c2 AK |
10913 | /******************************************************************************* |
10914 | * Function: init_migr_record_imsm | |
10915 | * Description: Function inits imsm migration record | |
10916 | * Parameters: | |
10917 | * super : imsm internal array info | |
10918 | * dev : device under migration | |
10919 | * info : general array info to find the smallest device | |
10920 | * Returns: | |
10921 | * none | |
10922 | ******************************************************************************/ | |
10923 | void init_migr_record_imsm(struct supertype *st, struct imsm_dev *dev, | |
10924 | struct mdinfo *info) | |
10925 | { | |
10926 | struct intel_super *super = st->sb; | |
10927 | struct migr_record *migr_rec = super->migr_rec; | |
10928 | int new_data_disks; | |
10929 | unsigned long long dsize, dev_sectors; | |
10930 | long long unsigned min_dev_sectors = -1LLU; | |
238c0a71 AK |
10931 | struct imsm_map *map_dest = get_imsm_map(dev, MAP_0); |
10932 | struct imsm_map *map_src = get_imsm_map(dev, MAP_1); | |
687629c2 | 10933 | unsigned long long num_migr_units; |
3ef4403c | 10934 | unsigned long long array_blocks; |
2f86fda3 | 10935 | struct dl *dl_disk = NULL; |
687629c2 AK |
10936 | |
10937 | memset(migr_rec, 0, sizeof(struct migr_record)); | |
10938 | migr_rec->family_num = __cpu_to_le32(super->anchor->family_num); | |
10939 | ||
10940 | /* only ascending reshape supported now */ | |
10941 | migr_rec->ascending_migr = __cpu_to_le32(1); | |
10942 | ||
10943 | migr_rec->dest_depth_per_unit = GEN_MIGR_AREA_SIZE / | |
10944 | max(map_dest->blocks_per_strip, map_src->blocks_per_strip); | |
e1742195 AK |
10945 | migr_rec->dest_depth_per_unit *= |
10946 | max(map_dest->blocks_per_strip, map_src->blocks_per_strip); | |
9529d343 | 10947 | new_data_disks = imsm_num_data_members(map_dest); |
687629c2 AK |
10948 | migr_rec->blocks_per_unit = |
10949 | __cpu_to_le32(migr_rec->dest_depth_per_unit * new_data_disks); | |
10950 | migr_rec->dest_depth_per_unit = | |
10951 | __cpu_to_le32(migr_rec->dest_depth_per_unit); | |
3ef4403c | 10952 | array_blocks = info->component_size * new_data_disks; |
687629c2 AK |
10953 | num_migr_units = |
10954 | array_blocks / __le32_to_cpu(migr_rec->blocks_per_unit); | |
10955 | ||
10956 | if (array_blocks % __le32_to_cpu(migr_rec->blocks_per_unit)) | |
10957 | num_migr_units++; | |
9f421827 | 10958 | set_num_migr_units(migr_rec, num_migr_units); |
687629c2 AK |
10959 | |
10960 | migr_rec->post_migr_vol_cap = dev->size_low; | |
10961 | migr_rec->post_migr_vol_cap_hi = dev->size_high; | |
10962 | ||
687629c2 | 10963 | /* Find the smallest dev */ |
2f86fda3 MT |
10964 | for (dl_disk = super->disks; dl_disk ; dl_disk = dl_disk->next) { |
10965 | /* ignore spares in container */ | |
10966 | if (dl_disk->index < 0) | |
687629c2 | 10967 | continue; |
2f86fda3 | 10968 | get_dev_size(dl_disk->fd, NULL, &dsize); |
687629c2 AK |
10969 | dev_sectors = dsize / 512; |
10970 | if (dev_sectors < min_dev_sectors) | |
10971 | min_dev_sectors = dev_sectors; | |
687629c2 | 10972 | } |
9f421827 | 10973 | set_migr_chkp_area_pba(migr_rec, min_dev_sectors - |
687629c2 AK |
10974 | RAID_DISK_RESERVED_BLOCKS_IMSM_HI); |
10975 | ||
10976 | write_imsm_migr_rec(st); | |
10977 | ||
10978 | return; | |
10979 | } | |
10980 | ||
10981 | /******************************************************************************* | |
10982 | * Function: save_backup_imsm | |
10983 | * Description: Function saves critical data stripes to Migration Copy Area | |
10984 | * and updates the current migration unit status. | |
10985 | * Use restore_stripes() to form a destination stripe, | |
10986 | * and to write it to the Copy Area. | |
10987 | * Parameters: | |
10988 | * st : supertype information | |
aea93171 | 10989 | * dev : imsm device that backup is saved for |
687629c2 AK |
10990 | * info : general array info |
10991 | * buf : input buffer | |
687629c2 AK |
10992 | * length : length of data to backup (blocks_per_unit) |
10993 | * Returns: | |
10994 | * 0 : success | |
10995 | *, -1 : fail | |
10996 | ******************************************************************************/ | |
10997 | int save_backup_imsm(struct supertype *st, | |
10998 | struct imsm_dev *dev, | |
10999 | struct mdinfo *info, | |
11000 | void *buf, | |
687629c2 AK |
11001 | int length) |
11002 | { | |
11003 | int rv = -1; | |
11004 | struct intel_super *super = st->sb; | |
687629c2 | 11005 | int i; |
238c0a71 | 11006 | struct imsm_map *map_dest = get_imsm_map(dev, MAP_0); |
687629c2 | 11007 | int new_disks = map_dest->num_members; |
ab724b98 | 11008 | int dest_layout = 0; |
4389ce73 MT |
11009 | int dest_chunk, targets[new_disks]; |
11010 | unsigned long long start, target_offsets[new_disks]; | |
9529d343 | 11011 | int data_disks = imsm_num_data_members(map_dest); |
687629c2 | 11012 | |
2f86fda3 MT |
11013 | for (i = 0; i < new_disks; i++) { |
11014 | struct dl *dl_disk = get_imsm_dl_disk(super, i); | |
4389ce73 MT |
11015 | if (dl_disk && is_fd_valid(dl_disk->fd)) |
11016 | targets[i] = dl_disk->fd; | |
11017 | else | |
11018 | goto abort; | |
2f86fda3 | 11019 | } |
7e45b550 | 11020 | |
d1877f69 | 11021 | start = info->reshape_progress * 512; |
687629c2 | 11022 | for (i = 0; i < new_disks; i++) { |
9f421827 | 11023 | target_offsets[i] = migr_chkp_area_pba(super->migr_rec) * 512; |
d1877f69 AK |
11024 | /* move back copy area adderss, it will be moved forward |
11025 | * in restore_stripes() using start input variable | |
11026 | */ | |
11027 | target_offsets[i] -= start/data_disks; | |
687629c2 AK |
11028 | } |
11029 | ||
68eb8bc6 | 11030 | dest_layout = imsm_level_to_layout(map_dest->raid_level); |
ab724b98 AK |
11031 | dest_chunk = __le16_to_cpu(map_dest->blocks_per_strip) * 512; |
11032 | ||
687629c2 AK |
11033 | if (restore_stripes(targets, /* list of dest devices */ |
11034 | target_offsets, /* migration record offsets */ | |
11035 | new_disks, | |
ab724b98 AK |
11036 | dest_chunk, |
11037 | map_dest->raid_level, | |
11038 | dest_layout, | |
11039 | -1, /* source backup file descriptor */ | |
11040 | 0, /* input buf offset | |
11041 | * always 0 buf is already offseted */ | |
d1877f69 | 11042 | start, |
687629c2 AK |
11043 | length, |
11044 | buf) != 0) { | |
e7b84f9d | 11045 | pr_err("Error restoring stripes\n"); |
687629c2 AK |
11046 | goto abort; |
11047 | } | |
11048 | ||
11049 | rv = 0; | |
11050 | ||
11051 | abort: | |
687629c2 AK |
11052 | return rv; |
11053 | } | |
11054 | ||
11055 | /******************************************************************************* | |
11056 | * Function: save_checkpoint_imsm | |
11057 | * Description: Function called for current unit status update | |
11058 | * in the migration record. It writes it to disk. | |
11059 | * Parameters: | |
11060 | * super : imsm internal array info | |
11061 | * info : general array info | |
11062 | * Returns: | |
11063 | * 0: success | |
11064 | * 1: failure | |
0228d92c AK |
11065 | * 2: failure, means no valid migration record |
11066 | * / no general migration in progress / | |
687629c2 AK |
11067 | ******************************************************************************/ |
11068 | int save_checkpoint_imsm(struct supertype *st, struct mdinfo *info, int state) | |
11069 | { | |
11070 | struct intel_super *super = st->sb; | |
f8b72ef5 AK |
11071 | unsigned long long blocks_per_unit; |
11072 | unsigned long long curr_migr_unit; | |
11073 | ||
2f86fda3 | 11074 | if (load_imsm_migr_rec(super) != 0) { |
7a862a02 | 11075 | dprintf("imsm: ERROR: Cannot read migration record for checkpoint save.\n"); |
2e062e82 AK |
11076 | return 1; |
11077 | } | |
11078 | ||
f8b72ef5 AK |
11079 | blocks_per_unit = __le32_to_cpu(super->migr_rec->blocks_per_unit); |
11080 | if (blocks_per_unit == 0) { | |
0228d92c AK |
11081 | dprintf("imsm: no migration in progress.\n"); |
11082 | return 2; | |
687629c2 | 11083 | } |
f8b72ef5 AK |
11084 | curr_migr_unit = info->reshape_progress / blocks_per_unit; |
11085 | /* check if array is alligned to copy area | |
11086 | * if it is not alligned, add one to current migration unit value | |
11087 | * this can happend on array reshape finish only | |
11088 | */ | |
11089 | if (info->reshape_progress % blocks_per_unit) | |
11090 | curr_migr_unit++; | |
687629c2 | 11091 | |
9f421827 | 11092 | set_current_migr_unit(super->migr_rec, curr_migr_unit); |
687629c2 | 11093 | super->migr_rec->rec_status = __cpu_to_le32(state); |
9f421827 PB |
11094 | set_migr_dest_1st_member_lba(super->migr_rec, |
11095 | super->migr_rec->dest_depth_per_unit * curr_migr_unit); | |
11096 | ||
687629c2 | 11097 | if (write_imsm_migr_rec(st) < 0) { |
7a862a02 | 11098 | dprintf("imsm: Cannot write migration record outside backup area\n"); |
687629c2 AK |
11099 | return 1; |
11100 | } | |
11101 | ||
11102 | return 0; | |
11103 | } | |
11104 | ||
276d77db AK |
11105 | /******************************************************************************* |
11106 | * Function: recover_backup_imsm | |
11107 | * Description: Function recovers critical data from the Migration Copy Area | |
11108 | * while assembling an array. | |
11109 | * Parameters: | |
11110 | * super : imsm internal array info | |
11111 | * info : general array info | |
11112 | * Returns: | |
11113 | * 0 : success (or there is no data to recover) | |
11114 | * 1 : fail | |
11115 | ******************************************************************************/ | |
11116 | int recover_backup_imsm(struct supertype *st, struct mdinfo *info) | |
11117 | { | |
11118 | struct intel_super *super = st->sb; | |
11119 | struct migr_record *migr_rec = super->migr_rec; | |
594dc1b8 | 11120 | struct imsm_map *map_dest; |
276d77db AK |
11121 | struct intel_dev *id = NULL; |
11122 | unsigned long long read_offset; | |
11123 | unsigned long long write_offset; | |
11124 | unsigned unit_len; | |
2f86fda3 | 11125 | int new_disks, err; |
276d77db AK |
11126 | char *buf = NULL; |
11127 | int retval = 1; | |
f36a9ecd | 11128 | unsigned int sector_size = super->sector_size; |
4036e7ee MT |
11129 | unsigned long long curr_migr_unit = current_migr_unit(migr_rec); |
11130 | unsigned long long num_migr_units = get_num_migr_units(migr_rec); | |
90fd7001 | 11131 | char buffer[SYSFS_MAX_BUF_SIZE]; |
6c3560c0 | 11132 | int skipped_disks = 0; |
2f86fda3 | 11133 | struct dl *dl_disk; |
276d77db | 11134 | |
90fd7001 | 11135 | err = sysfs_get_str(info, NULL, "array_state", (char *)buffer, sizeof(buffer)); |
276d77db AK |
11136 | if (err < 1) |
11137 | return 1; | |
11138 | ||
11139 | /* recover data only during assemblation */ | |
11140 | if (strncmp(buffer, "inactive", 8) != 0) | |
11141 | return 0; | |
11142 | /* no data to recover */ | |
11143 | if (__le32_to_cpu(migr_rec->rec_status) == UNIT_SRC_NORMAL) | |
11144 | return 0; | |
11145 | if (curr_migr_unit >= num_migr_units) | |
11146 | return 1; | |
11147 | ||
11148 | /* find device during reshape */ | |
11149 | for (id = super->devlist; id; id = id->next) | |
11150 | if (is_gen_migration(id->dev)) | |
11151 | break; | |
11152 | if (id == NULL) | |
11153 | return 1; | |
11154 | ||
238c0a71 | 11155 | map_dest = get_imsm_map(id->dev, MAP_0); |
276d77db AK |
11156 | new_disks = map_dest->num_members; |
11157 | ||
9f421827 | 11158 | read_offset = migr_chkp_area_pba(migr_rec) * 512; |
276d77db | 11159 | |
9f421827 | 11160 | write_offset = (migr_dest_1st_member_lba(migr_rec) + |
5551b113 | 11161 | pba_of_lba0(map_dest)) * 512; |
276d77db AK |
11162 | |
11163 | unit_len = __le32_to_cpu(migr_rec->dest_depth_per_unit) * 512; | |
f36a9ecd | 11164 | if (posix_memalign((void **)&buf, sector_size, unit_len) != 0) |
276d77db | 11165 | goto abort; |
276d77db | 11166 | |
2f86fda3 MT |
11167 | for (dl_disk = super->disks; dl_disk; dl_disk = dl_disk->next) { |
11168 | if (dl_disk->index < 0) | |
11169 | continue; | |
276d77db | 11170 | |
4389ce73 | 11171 | if (!is_fd_valid(dl_disk->fd)) { |
6c3560c0 AK |
11172 | skipped_disks++; |
11173 | continue; | |
11174 | } | |
2f86fda3 | 11175 | if (lseek64(dl_disk->fd, read_offset, SEEK_SET) < 0) { |
e7b84f9d N |
11176 | pr_err("Cannot seek to block: %s\n", |
11177 | strerror(errno)); | |
137debce AK |
11178 | skipped_disks++; |
11179 | continue; | |
276d77db | 11180 | } |
83b3de77 | 11181 | if (read(dl_disk->fd, buf, unit_len) != (ssize_t)unit_len) { |
e7b84f9d N |
11182 | pr_err("Cannot read copy area block: %s\n", |
11183 | strerror(errno)); | |
137debce AK |
11184 | skipped_disks++; |
11185 | continue; | |
276d77db | 11186 | } |
2f86fda3 | 11187 | if (lseek64(dl_disk->fd, write_offset, SEEK_SET) < 0) { |
e7b84f9d N |
11188 | pr_err("Cannot seek to block: %s\n", |
11189 | strerror(errno)); | |
137debce AK |
11190 | skipped_disks++; |
11191 | continue; | |
276d77db | 11192 | } |
83b3de77 | 11193 | if (write(dl_disk->fd, buf, unit_len) != (ssize_t)unit_len) { |
e7b84f9d N |
11194 | pr_err("Cannot restore block: %s\n", |
11195 | strerror(errno)); | |
137debce AK |
11196 | skipped_disks++; |
11197 | continue; | |
276d77db AK |
11198 | } |
11199 | } | |
11200 | ||
137debce AK |
11201 | if (skipped_disks > imsm_get_allowed_degradation(info->new_level, |
11202 | new_disks, | |
11203 | super, | |
11204 | id->dev)) { | |
7a862a02 | 11205 | pr_err("Cannot restore data from backup. Too many failed disks\n"); |
6c3560c0 AK |
11206 | goto abort; |
11207 | } | |
11208 | ||
befb629b AK |
11209 | if (save_checkpoint_imsm(st, info, UNIT_SRC_NORMAL)) { |
11210 | /* ignore error == 2, this can mean end of reshape here | |
11211 | */ | |
7a862a02 | 11212 | dprintf("imsm: Cannot write checkpoint to migration record (UNIT_SRC_NORMAL) during restart\n"); |
befb629b | 11213 | } else |
276d77db | 11214 | retval = 0; |
276d77db AK |
11215 | |
11216 | abort: | |
276d77db AK |
11217 | free(buf); |
11218 | return retval; | |
11219 | } | |
11220 | ||
e21aea08 MT |
11221 | /** |
11222 | * test_and_add_drive_controller_policy_imsm() - add disk controller to policies list. | |
11223 | * @type: Policy type to search on list. | |
11224 | * @pols: List of currently recorded policies. | |
11225 | * @disk_fd: File descriptor of the device to check. | |
11226 | * @hba: The hba disk is attached, could be NULL if verification is disabled. | |
11227 | * @verbose: verbose flag. | |
11228 | * | |
11229 | * IMSM cares about drive physical placement. If @hba is not set, it adds unknown policy. | |
11230 | * If there is no controller policy on pols we are free to add first one. If there is a policy then, | |
11231 | * new must be the same - no controller mixing allowed. | |
11232 | */ | |
11233 | static mdadm_status_t | |
11234 | test_and_add_drive_controller_policy_imsm(const char * const type, dev_policy_t **pols, int disk_fd, | |
11235 | struct sys_dev *hba, const int verbose) | |
11236 | { | |
11237 | const char *controller_policy = get_sys_dev_type(SYS_DEV_UNKNOWN); | |
11238 | struct dev_policy *pol = pol_find(*pols, (char *)type); | |
11239 | char devname[MAX_RAID_SERIAL_LEN]; | |
11240 | ||
11241 | if (hba) | |
11242 | controller_policy = get_sys_dev_type(hba->type); | |
11243 | ||
11244 | if (!pol) { | |
11245 | pol_add(pols, (char *)type, (char *)controller_policy, "imsm"); | |
11246 | return MDADM_STATUS_SUCCESS; | |
2cda7640 | 11247 | } |
e21aea08 MT |
11248 | |
11249 | if (strcmp(pol->value, controller_policy) == 0) | |
11250 | return MDADM_STATUS_SUCCESS; | |
11251 | ||
11252 | fd2devname(disk_fd, devname); | |
11253 | pr_vrb("Intel(R) raid controller \"%s\" found for %s, but \"%s\" was detected earlier\n", | |
11254 | controller_policy, devname, pol->value); | |
11255 | pr_vrb("Disks under different controllers cannot be used, aborting\n"); | |
11256 | ||
11257 | return MDADM_STATUS_ERROR; | |
11258 | } | |
11259 | ||
11260 | struct imsm_drive_policy { | |
11261 | char *type; | |
11262 | mdadm_status_t (*test_and_add_drive_policy)(const char * const type, | |
11263 | struct dev_policy **pols, int disk_fd, | |
11264 | struct sys_dev *hba, const int verbose); | |
11265 | }; | |
11266 | ||
11267 | struct imsm_drive_policy imsm_policies[] = { | |
11268 | {"controller", test_and_add_drive_controller_policy_imsm}, | |
11269 | }; | |
11270 | ||
11271 | mdadm_status_t test_and_add_drive_policies_imsm(struct dev_policy **pols, int disk_fd, | |
11272 | const int verbose) | |
11273 | { | |
11274 | struct imsm_drive_policy *imsm_pol; | |
11275 | struct sys_dev *hba = NULL; | |
11276 | char path[PATH_MAX]; | |
11277 | mdadm_status_t ret; | |
11278 | unsigned int i; | |
11279 | ||
11280 | /* If imsm platform verification is disabled, do not search for hba. */ | |
11281 | if (check_no_platform() != 1) { | |
11282 | if (!diskfd_to_devpath(disk_fd, 1, path)) { | |
11283 | pr_vrb("IMSM: Failed to retrieve device path by file descriptor.\n"); | |
11284 | return MDADM_STATUS_ERROR; | |
11285 | } | |
11286 | ||
11287 | hba = find_disk_attached_hba(disk_fd, path); | |
11288 | if (!hba) { | |
11289 | pr_vrb("IMSM: Failed to find hba for %s\n", path); | |
11290 | return MDADM_STATUS_ERROR; | |
11291 | } | |
11292 | } | |
11293 | ||
11294 | for (i = 0; i < ARRAY_SIZE(imsm_policies); i++) { | |
11295 | imsm_pol = &imsm_policies[i]; | |
11296 | ||
11297 | ret = imsm_pol->test_and_add_drive_policy(imsm_pol->type, pols, disk_fd, hba, | |
11298 | verbose); | |
11299 | if (ret != MDADM_STATUS_SUCCESS) | |
11300 | /* Inherit error code */ | |
11301 | return ret; | |
11302 | } | |
11303 | ||
11304 | return MDADM_STATUS_SUCCESS; | |
2cda7640 ML |
11305 | } |
11306 | ||
f6562011 MT |
11307 | /** |
11308 | * get_spare_criteria_imsm() - set spare criteria. | |
11309 | * @st: supertype. | |
11310 | * @mddev_path: path to md device devnode, it must be container. | |
11311 | * @c: spare_criteria struct to fill, not NULL. | |
11312 | * | |
11313 | * If superblock is not loaded, use mddev_path to load_container. It must be given in this case. | |
11314 | * Filles size and sector size accordingly to superblock. | |
11315 | */ | |
11316 | mdadm_status_t get_spare_criteria_imsm(struct supertype *st, char *mddev_path, | |
11317 | struct spare_criteria *c) | |
11318 | { | |
11319 | mdadm_status_t ret = MDADM_STATUS_ERROR; | |
11320 | bool free_superblock = false; | |
11321 | unsigned long long size = 0; | |
11322 | struct intel_super *super; | |
11323 | struct extent *e; | |
11324 | struct dl *dl; | |
11325 | int i; | |
11326 | ||
11327 | /* If no superblock and no mddev_path, we cannot load superblock. */ | |
11328 | assert(st->sb || mddev_path); | |
11329 | ||
11330 | if (mddev_path) { | |
11331 | int fd = open(mddev_path, O_RDONLY); | |
e21aea08 | 11332 | mdadm_status_t rv; |
f6562011 MT |
11333 | |
11334 | if (!is_fd_valid(fd)) | |
11335 | return MDADM_STATUS_ERROR; | |
11336 | ||
11337 | if (!st->sb) { | |
11338 | if (load_container_imsm(st, fd, st->devnm)) { | |
11339 | close(fd); | |
11340 | return MDADM_STATUS_ERROR; | |
11341 | } | |
11342 | free_superblock = true; | |
11343 | } | |
e21aea08 MT |
11344 | |
11345 | rv = mddev_test_and_add_drive_policies(st, &c->pols, fd, 0); | |
f6562011 | 11346 | close(fd); |
e21aea08 MT |
11347 | |
11348 | if (rv != MDADM_STATUS_SUCCESS) | |
11349 | goto out; | |
f6562011 MT |
11350 | } |
11351 | ||
11352 | super = st->sb; | |
11353 | ||
11354 | /* find first active disk in array */ | |
11355 | dl = super->disks; | |
11356 | while (dl && (is_failed(&dl->disk) || dl->index == -1)) | |
11357 | dl = dl->next; | |
11358 | ||
11359 | if (!dl) | |
11360 | goto out; | |
11361 | ||
11362 | /* find last lba used by subarrays */ | |
11363 | e = get_extents(super, dl, 0); | |
11364 | if (!e) | |
11365 | goto out; | |
11366 | ||
11367 | for (i = 0; e[i].size; i++) | |
11368 | continue; | |
11369 | if (i > 0) | |
11370 | size = e[i - 1].start + e[i - 1].size; | |
11371 | free(e); | |
11372 | ||
11373 | /* add the amount of space needed for metadata */ | |
11374 | size += imsm_min_reserved_sectors(super); | |
11375 | ||
11376 | c->min_size = size * 512; | |
11377 | c->sector_size = super->sector_size; | |
11378 | c->criteria_set = true; | |
11379 | ret = MDADM_STATUS_SUCCESS; | |
11380 | ||
11381 | out: | |
11382 | if (free_superblock) | |
11383 | free_super_imsm(st); | |
11384 | ||
11385 | if (ret != MDADM_STATUS_SUCCESS) | |
11386 | c->criteria_set = false; | |
11387 | ||
11388 | return ret; | |
11389 | } | |
11390 | ||
4dd2df09 | 11391 | static char *imsm_find_array_devnm_by_subdev(int subdev, char *container) |
78b10e66 | 11392 | { |
4dd2df09 | 11393 | static char devnm[32]; |
78b10e66 N |
11394 | char subdev_name[20]; |
11395 | struct mdstat_ent *mdstat; | |
11396 | ||
11397 | sprintf(subdev_name, "%d", subdev); | |
11398 | mdstat = mdstat_by_subdev(subdev_name, container); | |
11399 | if (!mdstat) | |
4dd2df09 | 11400 | return NULL; |
78b10e66 | 11401 | |
4dd2df09 | 11402 | strcpy(devnm, mdstat->devnm); |
78b10e66 | 11403 | free_mdstat(mdstat); |
4dd2df09 | 11404 | return devnm; |
78b10e66 N |
11405 | } |
11406 | ||
11407 | static int imsm_reshape_is_allowed_on_container(struct supertype *st, | |
11408 | struct geo_params *geo, | |
fbf3d202 AK |
11409 | int *old_raid_disks, |
11410 | int direction) | |
78b10e66 | 11411 | { |
694575e7 KW |
11412 | /* currently we only support increasing the number of devices |
11413 | * for a container. This increases the number of device for each | |
11414 | * member array. They must all be RAID0 or RAID5. | |
11415 | */ | |
78b10e66 N |
11416 | int ret_val = 0; |
11417 | struct mdinfo *info, *member; | |
11418 | int devices_that_can_grow = 0; | |
11419 | ||
7a862a02 | 11420 | dprintf("imsm: imsm_reshape_is_allowed_on_container(ENTER): st->devnm = (%s)\n", st->devnm); |
78b10e66 | 11421 | |
d04f65f4 | 11422 | if (geo->size > 0 || |
78b10e66 N |
11423 | geo->level != UnSet || |
11424 | geo->layout != UnSet || | |
11425 | geo->chunksize != 0 || | |
11426 | geo->raid_disks == UnSet) { | |
7a862a02 | 11427 | dprintf("imsm: Container operation is allowed for raid disks number change only.\n"); |
78b10e66 N |
11428 | return ret_val; |
11429 | } | |
11430 | ||
fbf3d202 | 11431 | if (direction == ROLLBACK_METADATA_CHANGES) { |
7a862a02 | 11432 | dprintf("imsm: Metadata changes rollback is not supported for container operation.\n"); |
fbf3d202 AK |
11433 | return ret_val; |
11434 | } | |
11435 | ||
78b10e66 N |
11436 | info = container_content_imsm(st, NULL); |
11437 | for (member = info; member; member = member->next) { | |
4dd2df09 | 11438 | char *result; |
78b10e66 N |
11439 | |
11440 | dprintf("imsm: checking device_num: %i\n", | |
11441 | member->container_member); | |
11442 | ||
d7d205bd | 11443 | if (geo->raid_disks <= member->array.raid_disks) { |
78b10e66 N |
11444 | /* we work on container for Online Capacity Expansion |
11445 | * only so raid_disks has to grow | |
11446 | */ | |
7a862a02 | 11447 | dprintf("imsm: for container operation raid disks increase is required\n"); |
78b10e66 N |
11448 | break; |
11449 | } | |
11450 | ||
089f9d79 | 11451 | if (info->array.level != 0 && info->array.level != 5) { |
78b10e66 N |
11452 | /* we cannot use this container with other raid level |
11453 | */ | |
7a862a02 | 11454 | dprintf("imsm: for container operation wrong raid level (%i) detected\n", |
78b10e66 N |
11455 | info->array.level); |
11456 | break; | |
11457 | } else { | |
11458 | /* check for platform support | |
11459 | * for this raid level configuration | |
11460 | */ | |
11461 | struct intel_super *super = st->sb; | |
11462 | if (!is_raid_level_supported(super->orom, | |
11463 | member->array.level, | |
11464 | geo->raid_disks)) { | |
7a862a02 | 11465 | dprintf("platform does not support raid%d with %d disk%s\n", |
78b10e66 N |
11466 | info->array.level, |
11467 | geo->raid_disks, | |
11468 | geo->raid_disks > 1 ? "s" : ""); | |
11469 | break; | |
11470 | } | |
2a4a08e7 AK |
11471 | /* check if component size is aligned to chunk size |
11472 | */ | |
11473 | if (info->component_size % | |
11474 | (info->array.chunk_size/512)) { | |
7a862a02 | 11475 | dprintf("Component size is not aligned to chunk size\n"); |
2a4a08e7 AK |
11476 | break; |
11477 | } | |
78b10e66 N |
11478 | } |
11479 | ||
11480 | if (*old_raid_disks && | |
11481 | info->array.raid_disks != *old_raid_disks) | |
11482 | break; | |
11483 | *old_raid_disks = info->array.raid_disks; | |
11484 | ||
11485 | /* All raid5 and raid0 volumes in container | |
11486 | * have to be ready for Online Capacity Expansion | |
11487 | * so they need to be assembled. We have already | |
11488 | * checked that no recovery etc is happening. | |
11489 | */ | |
4dd2df09 N |
11490 | result = imsm_find_array_devnm_by_subdev(member->container_member, |
11491 | st->container_devnm); | |
11492 | if (result == NULL) { | |
78b10e66 N |
11493 | dprintf("imsm: cannot find array\n"); |
11494 | break; | |
11495 | } | |
11496 | devices_that_can_grow++; | |
11497 | } | |
11498 | sysfs_free(info); | |
11499 | if (!member && devices_that_can_grow) | |
11500 | ret_val = 1; | |
11501 | ||
11502 | if (ret_val) | |
1ade5cc1 | 11503 | dprintf("Container operation allowed\n"); |
78b10e66 | 11504 | else |
1ade5cc1 | 11505 | dprintf("Error: %i\n", ret_val); |
78b10e66 N |
11506 | |
11507 | return ret_val; | |
11508 | } | |
11509 | ||
11510 | /* Function: get_spares_for_grow | |
11511 | * Description: Allocates memory and creates list of spare devices | |
1011e834 | 11512 | * avaliable in container. Checks if spare drive size is acceptable. |
78b10e66 N |
11513 | * Parameters: Pointer to the supertype structure |
11514 | * Returns: Pointer to the list of spare devices (mdinfo structure) on success, | |
1011e834 | 11515 | * NULL if fail |
78b10e66 N |
11516 | */ |
11517 | static struct mdinfo *get_spares_for_grow(struct supertype *st) | |
11518 | { | |
ae996e81 MT |
11519 | struct spare_criteria sc = {0}; |
11520 | struct mdinfo *spares; | |
fbfdcb06 | 11521 | |
f6562011 | 11522 | get_spare_criteria_imsm(st, NULL, &sc); |
ae996e81 MT |
11523 | spares = container_choose_spares(st, &sc, NULL, NULL, NULL, 0); |
11524 | ||
11525 | dev_policy_free(sc.pols); | |
11526 | ||
11527 | return spares; | |
78b10e66 N |
11528 | } |
11529 | ||
11530 | /****************************************************************************** | |
11531 | * function: imsm_create_metadata_update_for_reshape | |
11532 | * Function creates update for whole IMSM container. | |
11533 | * | |
11534 | ******************************************************************************/ | |
11535 | static int imsm_create_metadata_update_for_reshape( | |
11536 | struct supertype *st, | |
11537 | struct geo_params *geo, | |
11538 | int old_raid_disks, | |
11539 | struct imsm_update_reshape **updatep) | |
11540 | { | |
11541 | struct intel_super *super = st->sb; | |
11542 | struct imsm_super *mpb = super->anchor; | |
594dc1b8 JS |
11543 | int update_memory_size; |
11544 | struct imsm_update_reshape *u; | |
11545 | struct mdinfo *spares; | |
78b10e66 | 11546 | int i; |
594dc1b8 | 11547 | int delta_disks; |
bbd24d86 | 11548 | struct mdinfo *dev; |
78b10e66 | 11549 | |
1ade5cc1 | 11550 | dprintf("(enter) raid_disks = %i\n", geo->raid_disks); |
78b10e66 N |
11551 | |
11552 | delta_disks = geo->raid_disks - old_raid_disks; | |
11553 | ||
11554 | /* size of all update data without anchor */ | |
11555 | update_memory_size = sizeof(struct imsm_update_reshape); | |
11556 | ||
11557 | /* now add space for spare disks that we need to add. */ | |
11558 | update_memory_size += sizeof(u->new_disks[0]) * (delta_disks - 1); | |
11559 | ||
503975b9 | 11560 | u = xcalloc(1, update_memory_size); |
78b10e66 N |
11561 | u->type = update_reshape_container_disks; |
11562 | u->old_raid_disks = old_raid_disks; | |
11563 | u->new_raid_disks = geo->raid_disks; | |
11564 | ||
11565 | /* now get spare disks list | |
11566 | */ | |
11567 | spares = get_spares_for_grow(st); | |
11568 | ||
d7be7d87 | 11569 | if (spares == NULL || delta_disks > spares->array.spare_disks) { |
7a862a02 | 11570 | pr_err("imsm: ERROR: Cannot get spare devices for %s.\n", geo->dev_name); |
e4c72d1d | 11571 | i = -1; |
78b10e66 N |
11572 | goto abort; |
11573 | } | |
11574 | ||
11575 | /* we have got spares | |
11576 | * update disk list in imsm_disk list table in anchor | |
11577 | */ | |
11578 | dprintf("imsm: %i spares are available.\n\n", | |
11579 | spares->array.spare_disks); | |
11580 | ||
bbd24d86 | 11581 | dev = spares->devs; |
78b10e66 | 11582 | for (i = 0; i < delta_disks; i++) { |
78b10e66 N |
11583 | struct dl *dl; |
11584 | ||
bbd24d86 AK |
11585 | if (dev == NULL) |
11586 | break; | |
78b10e66 N |
11587 | u->new_disks[i] = makedev(dev->disk.major, |
11588 | dev->disk.minor); | |
11589 | dl = get_disk_super(super, dev->disk.major, dev->disk.minor); | |
ee4beede AK |
11590 | dl->index = mpb->num_disks; |
11591 | mpb->num_disks++; | |
bbd24d86 | 11592 | dev = dev->next; |
78b10e66 | 11593 | } |
78b10e66 N |
11594 | |
11595 | abort: | |
11596 | /* free spares | |
11597 | */ | |
11598 | sysfs_free(spares); | |
11599 | ||
d677e0b8 | 11600 | dprintf("imsm: reshape update preparation :"); |
78b10e66 | 11601 | if (i == delta_disks) { |
1ade5cc1 | 11602 | dprintf_cont(" OK\n"); |
78b10e66 N |
11603 | *updatep = u; |
11604 | return update_memory_size; | |
11605 | } | |
11606 | free(u); | |
1ade5cc1 | 11607 | dprintf_cont(" Error\n"); |
78b10e66 N |
11608 | |
11609 | return 0; | |
11610 | } | |
11611 | ||
f3871fdc AK |
11612 | /****************************************************************************** |
11613 | * function: imsm_create_metadata_update_for_size_change() | |
11614 | * Creates update for IMSM array for array size change. | |
11615 | * | |
11616 | ******************************************************************************/ | |
11617 | static int imsm_create_metadata_update_for_size_change( | |
11618 | struct supertype *st, | |
11619 | struct geo_params *geo, | |
11620 | struct imsm_update_size_change **updatep) | |
11621 | { | |
11622 | struct intel_super *super = st->sb; | |
594dc1b8 JS |
11623 | int update_memory_size; |
11624 | struct imsm_update_size_change *u; | |
f3871fdc | 11625 | |
1ade5cc1 | 11626 | dprintf("(enter) New size = %llu\n", geo->size); |
f3871fdc AK |
11627 | |
11628 | /* size of all update data without anchor */ | |
11629 | update_memory_size = sizeof(struct imsm_update_size_change); | |
11630 | ||
503975b9 | 11631 | u = xcalloc(1, update_memory_size); |
f3871fdc AK |
11632 | u->type = update_size_change; |
11633 | u->subdev = super->current_vol; | |
11634 | u->new_size = geo->size; | |
11635 | ||
11636 | dprintf("imsm: reshape update preparation : OK\n"); | |
11637 | *updatep = u; | |
11638 | ||
11639 | return update_memory_size; | |
11640 | } | |
11641 | ||
48c5303a PC |
11642 | /****************************************************************************** |
11643 | * function: imsm_create_metadata_update_for_migration() | |
11644 | * Creates update for IMSM array. | |
11645 | * | |
11646 | ******************************************************************************/ | |
11647 | static int imsm_create_metadata_update_for_migration( | |
11648 | struct supertype *st, | |
11649 | struct geo_params *geo, | |
11650 | struct imsm_update_reshape_migration **updatep) | |
11651 | { | |
11652 | struct intel_super *super = st->sb; | |
594dc1b8 | 11653 | int update_memory_size; |
756a15f3 | 11654 | int current_chunk_size; |
594dc1b8 | 11655 | struct imsm_update_reshape_migration *u; |
756a15f3 MG |
11656 | struct imsm_dev *dev = get_imsm_dev(super, super->current_vol); |
11657 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
48c5303a PC |
11658 | int previous_level = -1; |
11659 | ||
1ade5cc1 | 11660 | dprintf("(enter) New Level = %i\n", geo->level); |
48c5303a PC |
11661 | |
11662 | /* size of all update data without anchor */ | |
11663 | update_memory_size = sizeof(struct imsm_update_reshape_migration); | |
11664 | ||
503975b9 | 11665 | u = xcalloc(1, update_memory_size); |
48c5303a PC |
11666 | u->type = update_reshape_migration; |
11667 | u->subdev = super->current_vol; | |
11668 | u->new_level = geo->level; | |
11669 | u->new_layout = geo->layout; | |
11670 | u->new_raid_disks = u->old_raid_disks = geo->raid_disks; | |
11671 | u->new_disks[0] = -1; | |
4bba0439 | 11672 | u->new_chunksize = -1; |
48c5303a | 11673 | |
756a15f3 | 11674 | current_chunk_size = __le16_to_cpu(map->blocks_per_strip) / 2; |
48c5303a | 11675 | |
756a15f3 MG |
11676 | if (geo->chunksize != current_chunk_size) { |
11677 | u->new_chunksize = geo->chunksize / 1024; | |
11678 | dprintf("imsm: chunk size change from %i to %i\n", | |
11679 | current_chunk_size, u->new_chunksize); | |
48c5303a | 11680 | } |
756a15f3 MG |
11681 | previous_level = map->raid_level; |
11682 | ||
089f9d79 | 11683 | if (geo->level == 5 && previous_level == 0) { |
48c5303a PC |
11684 | struct mdinfo *spares = NULL; |
11685 | ||
11686 | u->new_raid_disks++; | |
11687 | spares = get_spares_for_grow(st); | |
089f9d79 | 11688 | if (spares == NULL || spares->array.spare_disks < 1) { |
48c5303a PC |
11689 | free(u); |
11690 | sysfs_free(spares); | |
11691 | update_memory_size = 0; | |
565cc99e | 11692 | pr_err("cannot get spare device for requested migration\n"); |
48c5303a PC |
11693 | return 0; |
11694 | } | |
11695 | sysfs_free(spares); | |
11696 | } | |
11697 | dprintf("imsm: reshape update preparation : OK\n"); | |
11698 | *updatep = u; | |
11699 | ||
11700 | return update_memory_size; | |
11701 | } | |
11702 | ||
8dd70bce AK |
11703 | static void imsm_update_metadata_locally(struct supertype *st, |
11704 | void *buf, int len) | |
11705 | { | |
11706 | struct metadata_update mu; | |
11707 | ||
11708 | mu.buf = buf; | |
11709 | mu.len = len; | |
11710 | mu.space = NULL; | |
11711 | mu.space_list = NULL; | |
11712 | mu.next = NULL; | |
5fe6f031 N |
11713 | if (imsm_prepare_update(st, &mu)) |
11714 | imsm_process_update(st, &mu); | |
8dd70bce AK |
11715 | |
11716 | while (mu.space_list) { | |
11717 | void **space = mu.space_list; | |
11718 | mu.space_list = *space; | |
11719 | free(space); | |
11720 | } | |
11721 | } | |
78b10e66 | 11722 | |
cbaa7904 MT |
11723 | /** |
11724 | * imsm_analyze_expand() - check expand properties and calculate new size. | |
11725 | * @st: imsm supertype. | |
11726 | * @geo: new geometry params. | |
11727 | * @array: array info. | |
11728 | * @direction: reshape direction. | |
11729 | * | |
11730 | * Obtain free space after the &array and verify if expand to requested size is | |
11731 | * possible. If geo->size is set to %MAX_SIZE, assume that max free size is | |
11732 | * requested. | |
11733 | * | |
11734 | * Return: | |
11735 | * On success %IMSM_STATUS_OK is returned, geo->size and geo->raid_disks are | |
11736 | * updated. | |
11737 | * On error, %IMSM_STATUS_ERROR is returned. | |
11738 | */ | |
11739 | static imsm_status_t imsm_analyze_expand(struct supertype *st, | |
11740 | struct geo_params *geo, | |
11741 | struct mdinfo *array, | |
11742 | int direction) | |
11743 | { | |
11744 | struct intel_super *super = st->sb; | |
11745 | struct imsm_dev *dev = get_imsm_dev(super, super->current_vol); | |
11746 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
11747 | int data_disks = imsm_num_data_members(map); | |
11748 | ||
11749 | unsigned long long current_size; | |
11750 | unsigned long long free_size; | |
11751 | unsigned long long new_size; | |
11752 | unsigned long long max_size; | |
11753 | ||
11754 | const int chunk_kib = geo->chunksize / 1024; | |
11755 | imsm_status_t rv; | |
11756 | ||
11757 | if (direction == ROLLBACK_METADATA_CHANGES) { | |
11758 | /** | |
11759 | * Accept size for rollback only. | |
11760 | */ | |
11761 | new_size = geo->size * 2; | |
11762 | goto success; | |
11763 | } | |
11764 | ||
cbaa7904 MT |
11765 | if (data_disks == 0) { |
11766 | pr_err("imsm: Cannot retrieve data disks.\n"); | |
11767 | return IMSM_STATUS_ERROR; | |
11768 | } | |
11769 | current_size = array->custom_array_size / data_disks; | |
11770 | ||
aa19fdd4 | 11771 | rv = imsm_get_free_size(super, dev->vol.map->num_members, 0, chunk_kib, &free_size, true); |
cbaa7904 MT |
11772 | if (rv != IMSM_STATUS_OK) { |
11773 | pr_err("imsm: Cannot find free space for expand.\n"); | |
11774 | return IMSM_STATUS_ERROR; | |
11775 | } | |
11776 | max_size = round_member_size_to_mb(free_size + current_size); | |
11777 | ||
11778 | if (geo->size == MAX_SIZE) | |
11779 | new_size = max_size; | |
11780 | else | |
11781 | new_size = round_member_size_to_mb(geo->size * 2); | |
11782 | ||
11783 | if (new_size == 0) { | |
11784 | pr_err("imsm: Rounded requested size is 0.\n"); | |
11785 | return IMSM_STATUS_ERROR; | |
11786 | } | |
11787 | ||
11788 | if (new_size > max_size) { | |
11789 | pr_err("imsm: Rounded requested size (%llu) is larger than free space available (%llu).\n", | |
11790 | new_size, max_size); | |
11791 | return IMSM_STATUS_ERROR; | |
11792 | } | |
11793 | ||
11794 | if (new_size == current_size) { | |
11795 | pr_err("imsm: Rounded requested size (%llu) is same as current size (%llu).\n", | |
11796 | new_size, current_size); | |
11797 | return IMSM_STATUS_ERROR; | |
11798 | } | |
11799 | ||
11800 | if (new_size < current_size) { | |
11801 | pr_err("imsm: Size reduction is not supported, rounded requested size (%llu) is smaller than current (%llu).\n", | |
11802 | new_size, current_size); | |
11803 | return IMSM_STATUS_ERROR; | |
11804 | } | |
11805 | ||
11806 | success: | |
11807 | dprintf("imsm: New size per member is %llu.\n", new_size); | |
11808 | geo->size = data_disks * new_size; | |
11809 | geo->raid_disks = dev->vol.map->num_members; | |
11810 | return IMSM_STATUS_OK; | |
11811 | } | |
11812 | ||
471bceb6 | 11813 | /*************************************************************************** |
694575e7 | 11814 | * Function: imsm_analyze_change |
471bceb6 | 11815 | * Description: Function analyze change for single volume |
1011e834 | 11816 | * and validate if transition is supported |
fbf3d202 AK |
11817 | * Parameters: Geometry parameters, supertype structure, |
11818 | * metadata change direction (apply/rollback) | |
694575e7 | 11819 | * Returns: Operation type code on success, -1 if fail |
471bceb6 KW |
11820 | ****************************************************************************/ |
11821 | enum imsm_reshape_type imsm_analyze_change(struct supertype *st, | |
fbf3d202 AK |
11822 | struct geo_params *geo, |
11823 | int direction) | |
694575e7 | 11824 | { |
471bceb6 KW |
11825 | struct mdinfo info; |
11826 | int change = -1; | |
11827 | int check_devs = 0; | |
c21e737b | 11828 | int chunk; |
67a2db32 AK |
11829 | /* number of added/removed disks in operation result */ |
11830 | int devNumChange = 0; | |
11831 | /* imsm compatible layout value for array geometry verification */ | |
11832 | int imsm_layout = -1; | |
6d4d9ab2 | 11833 | imsm_status_t rv; |
471bceb6 KW |
11834 | |
11835 | getinfo_super_imsm_volume(st, &info, NULL); | |
089f9d79 JS |
11836 | if (geo->level != info.array.level && geo->level >= 0 && |
11837 | geo->level != UnSet) { | |
471bceb6 KW |
11838 | switch (info.array.level) { |
11839 | case 0: | |
11840 | if (geo->level == 5) { | |
b5347799 | 11841 | change = CH_MIGRATION; |
e13ce846 | 11842 | if (geo->layout != ALGORITHM_LEFT_ASYMMETRIC) { |
7a862a02 | 11843 | pr_err("Error. Requested Layout not supported (left-asymmetric layout is supported only)!\n"); |
e13ce846 AK |
11844 | change = -1; |
11845 | goto analyse_change_exit; | |
11846 | } | |
67a2db32 | 11847 | imsm_layout = geo->layout; |
471bceb6 | 11848 | check_devs = 1; |
e91a3bad LM |
11849 | devNumChange = 1; /* parity disk added */ |
11850 | } else if (geo->level == 10) { | |
471bceb6 KW |
11851 | change = CH_TAKEOVER; |
11852 | check_devs = 1; | |
e91a3bad | 11853 | devNumChange = 2; /* two mirrors added */ |
67a2db32 | 11854 | imsm_layout = 0x102; /* imsm supported layout */ |
471bceb6 | 11855 | } |
dfe77a9e KW |
11856 | break; |
11857 | case 1: | |
471bceb6 KW |
11858 | case 10: |
11859 | if (geo->level == 0) { | |
11860 | change = CH_TAKEOVER; | |
11861 | check_devs = 1; | |
e91a3bad | 11862 | devNumChange = -(geo->raid_disks/2); |
67a2db32 | 11863 | imsm_layout = 0; /* imsm raid0 layout */ |
471bceb6 KW |
11864 | } |
11865 | break; | |
11866 | } | |
11867 | if (change == -1) { | |
7a862a02 | 11868 | pr_err("Error. Level Migration from %d to %d not supported!\n", |
e7b84f9d | 11869 | info.array.level, geo->level); |
471bceb6 KW |
11870 | goto analyse_change_exit; |
11871 | } | |
11872 | } else | |
11873 | geo->level = info.array.level; | |
11874 | ||
089f9d79 JS |
11875 | if (geo->layout != info.array.layout && |
11876 | (geo->layout != UnSet && geo->layout != -1)) { | |
b5347799 | 11877 | change = CH_MIGRATION; |
089f9d79 JS |
11878 | if (info.array.layout == 0 && info.array.level == 5 && |
11879 | geo->layout == 5) { | |
471bceb6 | 11880 | /* reshape 5 -> 4 */ |
089f9d79 JS |
11881 | } else if (info.array.layout == 5 && info.array.level == 5 && |
11882 | geo->layout == 0) { | |
471bceb6 KW |
11883 | /* reshape 4 -> 5 */ |
11884 | geo->layout = 0; | |
11885 | geo->level = 5; | |
11886 | } else { | |
7a862a02 | 11887 | pr_err("Error. Layout Migration from %d to %d not supported!\n", |
e7b84f9d | 11888 | info.array.layout, geo->layout); |
471bceb6 KW |
11889 | change = -1; |
11890 | goto analyse_change_exit; | |
11891 | } | |
67a2db32 | 11892 | } else { |
471bceb6 | 11893 | geo->layout = info.array.layout; |
67a2db32 AK |
11894 | if (imsm_layout == -1) |
11895 | imsm_layout = info.array.layout; | |
11896 | } | |
471bceb6 | 11897 | |
089f9d79 JS |
11898 | if (geo->chunksize > 0 && geo->chunksize != UnSet && |
11899 | geo->chunksize != info.array.chunk_size) { | |
2d2b0eb7 MD |
11900 | if (info.array.level == 10) { |
11901 | pr_err("Error. Chunk size change for RAID 10 is not supported.\n"); | |
11902 | change = -1; | |
11903 | goto analyse_change_exit; | |
1e9b2c3f PB |
11904 | } else if (info.component_size % (geo->chunksize/512)) { |
11905 | pr_err("New chunk size (%dK) does not evenly divide device size (%lluk). Aborting...\n", | |
11906 | geo->chunksize/1024, info.component_size/2); | |
11907 | change = -1; | |
11908 | goto analyse_change_exit; | |
2d2b0eb7 | 11909 | } |
b5347799 | 11910 | change = CH_MIGRATION; |
2d2b0eb7 | 11911 | } else { |
471bceb6 | 11912 | geo->chunksize = info.array.chunk_size; |
2d2b0eb7 | 11913 | } |
471bceb6 | 11914 | |
cbaa7904 | 11915 | if (geo->size > 0) { |
7abc9871 | 11916 | if (change != -1) { |
7a862a02 | 11917 | pr_err("Error. Size change should be the only one at a time.\n"); |
7abc9871 AK |
11918 | change = -1; |
11919 | goto analyse_change_exit; | |
11920 | } | |
6d4d9ab2 | 11921 | |
cbaa7904 | 11922 | rv = imsm_analyze_expand(st, geo, &info, direction); |
6d4d9ab2 | 11923 | if (rv != IMSM_STATUS_OK) |
cbaa7904 | 11924 | goto analyse_change_exit; |
7abc9871 AK |
11925 | change = CH_ARRAY_SIZE; |
11926 | } | |
cbaa7904 MT |
11927 | |
11928 | chunk = geo->chunksize / 1024; | |
471bceb6 KW |
11929 | if (!validate_geometry_imsm(st, |
11930 | geo->level, | |
67a2db32 | 11931 | imsm_layout, |
e91a3bad | 11932 | geo->raid_disks + devNumChange, |
c21e737b | 11933 | &chunk, |
af4348dd | 11934 | geo->size, INVALID_SECTORS, |
5308f117 | 11935 | 0, 0, info.consistency_policy, 1)) |
471bceb6 KW |
11936 | change = -1; |
11937 | ||
11938 | if (check_devs) { | |
11939 | struct intel_super *super = st->sb; | |
11940 | struct imsm_super *mpb = super->anchor; | |
11941 | ||
11942 | if (mpb->num_raid_devs > 1) { | |
f1cc8ab9 LF |
11943 | pr_err("Error. Cannot perform operation on %s- for this operation " |
11944 | "it MUST be single array in container\n", geo->dev_name); | |
471bceb6 KW |
11945 | change = -1; |
11946 | } | |
11947 | } | |
11948 | ||
11949 | analyse_change_exit: | |
089f9d79 JS |
11950 | if (direction == ROLLBACK_METADATA_CHANGES && |
11951 | (change == CH_MIGRATION || change == CH_TAKEOVER)) { | |
7a862a02 | 11952 | dprintf("imsm: Metadata changes rollback is not supported for migration and takeover operations.\n"); |
fbf3d202 AK |
11953 | change = -1; |
11954 | } | |
471bceb6 | 11955 | return change; |
694575e7 KW |
11956 | } |
11957 | ||
bb025c2f KW |
11958 | int imsm_takeover(struct supertype *st, struct geo_params *geo) |
11959 | { | |
11960 | struct intel_super *super = st->sb; | |
11961 | struct imsm_update_takeover *u; | |
11962 | ||
503975b9 | 11963 | u = xmalloc(sizeof(struct imsm_update_takeover)); |
bb025c2f KW |
11964 | |
11965 | u->type = update_takeover; | |
11966 | u->subarray = super->current_vol; | |
11967 | ||
11968 | /* 10->0 transition */ | |
11969 | if (geo->level == 0) | |
11970 | u->direction = R10_TO_R0; | |
11971 | ||
0529c688 KW |
11972 | /* 0->10 transition */ |
11973 | if (geo->level == 10) | |
11974 | u->direction = R0_TO_R10; | |
11975 | ||
bb025c2f KW |
11976 | /* update metadata locally */ |
11977 | imsm_update_metadata_locally(st, u, | |
11978 | sizeof(struct imsm_update_takeover)); | |
11979 | /* and possibly remotely */ | |
11980 | if (st->update_tail) | |
11981 | append_metadata_update(st, u, | |
11982 | sizeof(struct imsm_update_takeover)); | |
11983 | else | |
11984 | free(u); | |
11985 | ||
11986 | return 0; | |
11987 | } | |
11988 | ||
895ffd99 MT |
11989 | /* Flush size update if size calculated by num_data_stripes is higher than |
11990 | * imsm_dev_size to eliminate differences during reshape. | |
11991 | * Mdmon will recalculate them correctly. | |
11992 | * If subarray index is not set then check whole container. | |
11993 | * Returns: | |
11994 | * 0 - no error occurred | |
11995 | * 1 - error detected | |
11996 | */ | |
11997 | static int imsm_fix_size_mismatch(struct supertype *st, int subarray_index) | |
11998 | { | |
11999 | struct intel_super *super = st->sb; | |
12000 | int tmp = super->current_vol; | |
12001 | int ret_val = 1; | |
12002 | int i; | |
12003 | ||
12004 | for (i = 0; i < super->anchor->num_raid_devs; i++) { | |
12005 | if (subarray_index >= 0 && i != subarray_index) | |
12006 | continue; | |
12007 | super->current_vol = i; | |
12008 | struct imsm_dev *dev = get_imsm_dev(super, super->current_vol); | |
12009 | struct imsm_map *map = get_imsm_map(dev, MAP_0); | |
12010 | unsigned int disc_count = imsm_num_data_members(map); | |
12011 | struct geo_params geo; | |
12012 | struct imsm_update_size_change *update; | |
12013 | unsigned long long calc_size = per_dev_array_size(map) * disc_count; | |
12014 | unsigned long long d_size = imsm_dev_size(dev); | |
12015 | int u_size; | |
12016 | ||
42e02e61 | 12017 | if (calc_size == d_size) |
895ffd99 MT |
12018 | continue; |
12019 | ||
ff904202 MT |
12020 | /* There is a difference, confirm that imsm_dev_size is |
12021 | * smaller and push update. | |
895ffd99 | 12022 | */ |
ff904202 MT |
12023 | if (d_size > calc_size) { |
12024 | pr_err("imsm: dev size of subarray %d is incorrect\n", | |
12025 | i); | |
895ffd99 MT |
12026 | goto exit; |
12027 | } | |
12028 | memset(&geo, 0, sizeof(struct geo_params)); | |
12029 | geo.size = d_size; | |
12030 | u_size = imsm_create_metadata_update_for_size_change(st, &geo, | |
12031 | &update); | |
895ffd99 MT |
12032 | imsm_update_metadata_locally(st, update, u_size); |
12033 | if (st->update_tail) { | |
12034 | append_metadata_update(st, update, u_size); | |
12035 | flush_metadata_updates(st); | |
12036 | st->update_tail = &st->updates; | |
12037 | } else { | |
12038 | imsm_sync_metadata(st); | |
5ce5a15f | 12039 | free(update); |
895ffd99 MT |
12040 | } |
12041 | } | |
12042 | ret_val = 0; | |
12043 | exit: | |
12044 | super->current_vol = tmp; | |
12045 | return ret_val; | |
12046 | } | |
12047 | ||
d04f65f4 N |
12048 | static int imsm_reshape_super(struct supertype *st, unsigned long long size, |
12049 | int level, | |
78b10e66 | 12050 | int layout, int chunksize, int raid_disks, |
41784c88 | 12051 | int delta_disks, char *backup, char *dev, |
016e00f5 | 12052 | int direction, int verbose) |
78b10e66 | 12053 | { |
78b10e66 N |
12054 | int ret_val = 1; |
12055 | struct geo_params geo; | |
12056 | ||
1ade5cc1 | 12057 | dprintf("(enter)\n"); |
78b10e66 | 12058 | |
71204a50 | 12059 | memset(&geo, 0, sizeof(struct geo_params)); |
78b10e66 N |
12060 | |
12061 | geo.dev_name = dev; | |
4dd2df09 | 12062 | strcpy(geo.devnm, st->devnm); |
78b10e66 N |
12063 | geo.size = size; |
12064 | geo.level = level; | |
12065 | geo.layout = layout; | |
12066 | geo.chunksize = chunksize; | |
12067 | geo.raid_disks = raid_disks; | |
41784c88 AK |
12068 | if (delta_disks != UnSet) |
12069 | geo.raid_disks += delta_disks; | |
78b10e66 | 12070 | |
1ade5cc1 N |
12071 | dprintf("for level : %i\n", geo.level); |
12072 | dprintf("for raid_disks : %i\n", geo.raid_disks); | |
78b10e66 | 12073 | |
4dd2df09 | 12074 | if (strcmp(st->container_devnm, st->devnm) == 0) { |
694575e7 KW |
12075 | /* On container level we can only increase number of devices. */ |
12076 | dprintf("imsm: info: Container operation\n"); | |
78b10e66 | 12077 | int old_raid_disks = 0; |
6dc0be30 | 12078 | |
78b10e66 | 12079 | if (imsm_reshape_is_allowed_on_container( |
fbf3d202 | 12080 | st, &geo, &old_raid_disks, direction)) { |
78b10e66 N |
12081 | struct imsm_update_reshape *u = NULL; |
12082 | int len; | |
12083 | ||
895ffd99 MT |
12084 | if (imsm_fix_size_mismatch(st, -1)) { |
12085 | dprintf("imsm: Cannot fix size mismatch\n"); | |
12086 | goto exit_imsm_reshape_super; | |
12087 | } | |
12088 | ||
78b10e66 N |
12089 | len = imsm_create_metadata_update_for_reshape( |
12090 | st, &geo, old_raid_disks, &u); | |
12091 | ||
ed08d51c AK |
12092 | if (len <= 0) { |
12093 | dprintf("imsm: Cannot prepare update\n"); | |
12094 | goto exit_imsm_reshape_super; | |
12095 | } | |
12096 | ||
8dd70bce AK |
12097 | ret_val = 0; |
12098 | /* update metadata locally */ | |
12099 | imsm_update_metadata_locally(st, u, len); | |
12100 | /* and possibly remotely */ | |
12101 | if (st->update_tail) | |
12102 | append_metadata_update(st, u, len); | |
12103 | else | |
ed08d51c | 12104 | free(u); |
8dd70bce | 12105 | |
694575e7 | 12106 | } else { |
7a862a02 | 12107 | pr_err("(imsm) Operation is not allowed on this container\n"); |
694575e7 KW |
12108 | } |
12109 | } else { | |
12110 | /* On volume level we support following operations | |
471bceb6 KW |
12111 | * - takeover: raid10 -> raid0; raid0 -> raid10 |
12112 | * - chunk size migration | |
12113 | * - migration: raid5 -> raid0; raid0 -> raid5 | |
12114 | */ | |
12115 | struct intel_super *super = st->sb; | |
12116 | struct intel_dev *dev = super->devlist; | |
4dd2df09 | 12117 | int change; |
694575e7 | 12118 | dprintf("imsm: info: Volume operation\n"); |
471bceb6 KW |
12119 | /* find requested device */ |
12120 | while (dev) { | |
1011e834 | 12121 | char *devnm = |
4dd2df09 N |
12122 | imsm_find_array_devnm_by_subdev( |
12123 | dev->index, st->container_devnm); | |
12124 | if (devnm && strcmp(devnm, geo.devnm) == 0) | |
471bceb6 KW |
12125 | break; |
12126 | dev = dev->next; | |
12127 | } | |
12128 | if (dev == NULL) { | |
4dd2df09 N |
12129 | pr_err("Cannot find %s (%s) subarray\n", |
12130 | geo.dev_name, geo.devnm); | |
471bceb6 KW |
12131 | goto exit_imsm_reshape_super; |
12132 | } | |
12133 | super->current_vol = dev->index; | |
fbf3d202 | 12134 | change = imsm_analyze_change(st, &geo, direction); |
694575e7 | 12135 | switch (change) { |
471bceb6 | 12136 | case CH_TAKEOVER: |
bb025c2f | 12137 | ret_val = imsm_takeover(st, &geo); |
694575e7 | 12138 | break; |
48c5303a PC |
12139 | case CH_MIGRATION: { |
12140 | struct imsm_update_reshape_migration *u = NULL; | |
12141 | int len = | |
12142 | imsm_create_metadata_update_for_migration( | |
12143 | st, &geo, &u); | |
12144 | if (len < 1) { | |
7a862a02 | 12145 | dprintf("imsm: Cannot prepare update\n"); |
48c5303a PC |
12146 | break; |
12147 | } | |
471bceb6 | 12148 | ret_val = 0; |
48c5303a PC |
12149 | /* update metadata locally */ |
12150 | imsm_update_metadata_locally(st, u, len); | |
12151 | /* and possibly remotely */ | |
12152 | if (st->update_tail) | |
12153 | append_metadata_update(st, u, len); | |
12154 | else | |
12155 | free(u); | |
12156 | } | |
12157 | break; | |
7abc9871 | 12158 | case CH_ARRAY_SIZE: { |
f3871fdc AK |
12159 | struct imsm_update_size_change *u = NULL; |
12160 | int len = | |
12161 | imsm_create_metadata_update_for_size_change( | |
12162 | st, &geo, &u); | |
12163 | if (len < 1) { | |
7a862a02 | 12164 | dprintf("imsm: Cannot prepare update\n"); |
f3871fdc AK |
12165 | break; |
12166 | } | |
12167 | ret_val = 0; | |
12168 | /* update metadata locally */ | |
12169 | imsm_update_metadata_locally(st, u, len); | |
12170 | /* and possibly remotely */ | |
12171 | if (st->update_tail) | |
12172 | append_metadata_update(st, u, len); | |
12173 | else | |
12174 | free(u); | |
7abc9871 AK |
12175 | } |
12176 | break; | |
471bceb6 KW |
12177 | default: |
12178 | ret_val = 1; | |
694575e7 | 12179 | } |
694575e7 | 12180 | } |
78b10e66 | 12181 | |
ed08d51c | 12182 | exit_imsm_reshape_super: |
78b10e66 N |
12183 | dprintf("imsm: reshape_super Exit code = %i\n", ret_val); |
12184 | return ret_val; | |
12185 | } | |
2cda7640 | 12186 | |
0febb20c AO |
12187 | #define COMPLETED_OK 0 |
12188 | #define COMPLETED_NONE 1 | |
12189 | #define COMPLETED_DELAYED 2 | |
12190 | ||
12191 | static int read_completed(int fd, unsigned long long *val) | |
12192 | { | |
12193 | int ret; | |
90fd7001 | 12194 | char buf[SYSFS_MAX_BUF_SIZE]; |
0febb20c | 12195 | |
90fd7001 | 12196 | ret = sysfs_fd_get_str(fd, buf, sizeof(buf)); |
0febb20c AO |
12197 | if (ret < 0) |
12198 | return ret; | |
12199 | ||
12200 | ret = COMPLETED_OK; | |
b823c8f9 | 12201 | if (str_is_none(buf) == true) { |
0febb20c AO |
12202 | ret = COMPLETED_NONE; |
12203 | } else if (strncmp(buf, "delayed", 7) == 0) { | |
12204 | ret = COMPLETED_DELAYED; | |
12205 | } else { | |
12206 | char *ep; | |
12207 | *val = strtoull(buf, &ep, 0); | |
12208 | if (ep == buf || (*ep != 0 && *ep != '\n' && *ep != ' ')) | |
12209 | ret = -1; | |
12210 | } | |
12211 | return ret; | |
12212 | } | |
12213 | ||
eee67a47 AK |
12214 | /******************************************************************************* |
12215 | * Function: wait_for_reshape_imsm | |
12216 | * Description: Function writes new sync_max value and waits until | |
12217 | * reshape process reach new position | |
12218 | * Parameters: | |
12219 | * sra : general array info | |
eee67a47 AK |
12220 | * ndata : number of disks in new array's layout |
12221 | * Returns: | |
12222 | * 0 : success, | |
12223 | * 1 : there is no reshape in progress, | |
12224 | * -1 : fail | |
12225 | ******************************************************************************/ | |
ae9f01f8 | 12226 | int wait_for_reshape_imsm(struct mdinfo *sra, int ndata) |
eee67a47 | 12227 | { |
85ca499c | 12228 | int fd = sysfs_get_fd(sra, NULL, "sync_completed"); |
df2647fa | 12229 | int retry = 3; |
eee67a47 | 12230 | unsigned long long completed; |
ae9f01f8 AK |
12231 | /* to_complete : new sync_max position */ |
12232 | unsigned long long to_complete = sra->reshape_progress; | |
12233 | unsigned long long position_to_set = to_complete / ndata; | |
eee67a47 | 12234 | |
4389ce73 | 12235 | if (!is_fd_valid(fd)) { |
1ade5cc1 | 12236 | dprintf("cannot open reshape_position\n"); |
eee67a47 | 12237 | return 1; |
ae9f01f8 | 12238 | } |
eee67a47 | 12239 | |
df2647fa PB |
12240 | do { |
12241 | if (sysfs_fd_get_ll(fd, &completed) < 0) { | |
12242 | if (!retry) { | |
12243 | dprintf("cannot read reshape_position (no reshape in progres)\n"); | |
12244 | close(fd); | |
12245 | return 1; | |
12246 | } | |
239b3cc0 | 12247 | sleep_for(0, MSEC_TO_NSEC(30), true); |
df2647fa PB |
12248 | } else |
12249 | break; | |
12250 | } while (retry--); | |
eee67a47 | 12251 | |
85ca499c | 12252 | if (completed > position_to_set) { |
1ade5cc1 | 12253 | dprintf("wrong next position to set %llu (%llu)\n", |
85ca499c | 12254 | to_complete, position_to_set); |
ae9f01f8 AK |
12255 | close(fd); |
12256 | return -1; | |
12257 | } | |
12258 | dprintf("Position set: %llu\n", position_to_set); | |
12259 | if (sysfs_set_num(sra, NULL, "sync_max", | |
12260 | position_to_set) != 0) { | |
1ade5cc1 | 12261 | dprintf("cannot set reshape position to %llu\n", |
ae9f01f8 AK |
12262 | position_to_set); |
12263 | close(fd); | |
12264 | return -1; | |
eee67a47 AK |
12265 | } |
12266 | ||
eee67a47 | 12267 | do { |
0febb20c | 12268 | int rc; |
90fd7001 | 12269 | char action[SYSFS_MAX_BUF_SIZE]; |
5ff3a780 | 12270 | int timeout = 3000; |
0febb20c | 12271 | |
5ff3a780 | 12272 | sysfs_wait(fd, &timeout); |
a47e44fb | 12273 | if (sysfs_get_str(sra, NULL, "sync_action", |
90fd7001 | 12274 | action, sizeof(action)) > 0 && |
d7d3809a | 12275 | strncmp(action, "reshape", 7) != 0) { |
b2be2b62 AO |
12276 | if (strncmp(action, "idle", 4) == 0) |
12277 | break; | |
d7d3809a AP |
12278 | close(fd); |
12279 | return -1; | |
12280 | } | |
0febb20c AO |
12281 | |
12282 | rc = read_completed(fd, &completed); | |
12283 | if (rc < 0) { | |
1ade5cc1 | 12284 | dprintf("cannot read reshape_position (in loop)\n"); |
eee67a47 AK |
12285 | close(fd); |
12286 | return 1; | |
0febb20c AO |
12287 | } else if (rc == COMPLETED_NONE) |
12288 | break; | |
85ca499c | 12289 | } while (completed < position_to_set); |
b2be2b62 | 12290 | |
eee67a47 AK |
12291 | close(fd); |
12292 | return 0; | |
eee67a47 AK |
12293 | } |
12294 | ||
b915c95f AK |
12295 | /******************************************************************************* |
12296 | * Function: check_degradation_change | |
12297 | * Description: Check that array hasn't become failed. | |
12298 | * Parameters: | |
12299 | * info : for sysfs access | |
12300 | * sources : source disks descriptors | |
12301 | * degraded: previous degradation level | |
12302 | * Returns: | |
12303 | * degradation level | |
12304 | ******************************************************************************/ | |
12305 | int check_degradation_change(struct mdinfo *info, | |
12306 | int *sources, | |
12307 | int degraded) | |
12308 | { | |
12309 | unsigned long long new_degraded; | |
e1993023 LD |
12310 | int rv; |
12311 | ||
12312 | rv = sysfs_get_ll(info, NULL, "degraded", &new_degraded); | |
089f9d79 | 12313 | if (rv == -1 || (new_degraded != (unsigned long long)degraded)) { |
b915c95f AK |
12314 | /* check each device to ensure it is still working */ |
12315 | struct mdinfo *sd; | |
12316 | new_degraded = 0; | |
12317 | for (sd = info->devs ; sd ; sd = sd->next) { | |
12318 | if (sd->disk.state & (1<<MD_DISK_FAULTY)) | |
12319 | continue; | |
12320 | if (sd->disk.state & (1<<MD_DISK_SYNC)) { | |
90fd7001 | 12321 | char sbuf[SYSFS_MAX_BUF_SIZE]; |
4389ce73 | 12322 | int raid_disk = sd->disk.raid_disk; |
cf52eff5 | 12323 | |
b915c95f | 12324 | if (sysfs_get_str(info, |
cf52eff5 | 12325 | sd, "state", sbuf, sizeof(sbuf)) < 0 || |
b915c95f AK |
12326 | strstr(sbuf, "faulty") || |
12327 | strstr(sbuf, "in_sync") == NULL) { | |
12328 | /* this device is dead */ | |
12329 | sd->disk.state = (1<<MD_DISK_FAULTY); | |
4389ce73 MT |
12330 | if (raid_disk >= 0) |
12331 | close_fd(&sources[raid_disk]); | |
b915c95f AK |
12332 | new_degraded++; |
12333 | } | |
12334 | } | |
12335 | } | |
12336 | } | |
12337 | ||
12338 | return new_degraded; | |
12339 | } | |
12340 | ||
10f22854 AK |
12341 | /******************************************************************************* |
12342 | * Function: imsm_manage_reshape | |
12343 | * Description: Function finds array under reshape and it manages reshape | |
12344 | * process. It creates stripes backups (if required) and sets | |
942e1cdb | 12345 | * checkpoints. |
10f22854 AK |
12346 | * Parameters: |
12347 | * afd : Backup handle (nattive) - not used | |
12348 | * sra : general array info | |
12349 | * reshape : reshape parameters - not used | |
12350 | * st : supertype structure | |
12351 | * blocks : size of critical section [blocks] | |
12352 | * fds : table of source device descriptor | |
12353 | * offsets : start of array (offest per devices) | |
12354 | * dests : not used | |
12355 | * destfd : table of destination device descriptor | |
12356 | * destoffsets : table of destination offsets (per device) | |
12357 | * Returns: | |
12358 | * 1 : success, reshape is done | |
12359 | * 0 : fail | |
12360 | ******************************************************************************/ | |
999b4972 N |
12361 | static int imsm_manage_reshape( |
12362 | int afd, struct mdinfo *sra, struct reshape *reshape, | |
10f22854 | 12363 | struct supertype *st, unsigned long backup_blocks, |
999b4972 N |
12364 | int *fds, unsigned long long *offsets, |
12365 | int dests, int *destfd, unsigned long long *destoffsets) | |
12366 | { | |
10f22854 AK |
12367 | int ret_val = 0; |
12368 | struct intel_super *super = st->sb; | |
594dc1b8 | 12369 | struct intel_dev *dv; |
de44e46f | 12370 | unsigned int sector_size = super->sector_size; |
10f22854 | 12371 | struct imsm_dev *dev = NULL; |
9529d343 | 12372 | struct imsm_map *map_src, *map_dest; |
10f22854 AK |
12373 | int migr_vol_qan = 0; |
12374 | int ndata, odata; /* [bytes] */ | |
12375 | int chunk; /* [bytes] */ | |
12376 | struct migr_record *migr_rec; | |
12377 | char *buf = NULL; | |
12378 | unsigned int buf_size; /* [bytes] */ | |
12379 | unsigned long long max_position; /* array size [bytes] */ | |
12380 | unsigned long long next_step; /* [blocks]/[bytes] */ | |
12381 | unsigned long long old_data_stripe_length; | |
10f22854 AK |
12382 | unsigned long long start_src; /* [bytes] */ |
12383 | unsigned long long start; /* [bytes] */ | |
12384 | unsigned long long start_buf_shift; /* [bytes] */ | |
b915c95f | 12385 | int degraded = 0; |
ab724b98 | 12386 | int source_layout = 0; |
895ffd99 | 12387 | int subarray_index = -1; |
10f22854 | 12388 | |
79a16a9b JS |
12389 | if (!sra) |
12390 | return ret_val; | |
12391 | ||
12392 | if (!fds || !offsets) | |
10f22854 AK |
12393 | goto abort; |
12394 | ||
12395 | /* Find volume during the reshape */ | |
12396 | for (dv = super->devlist; dv; dv = dv->next) { | |
fc54fe7a JS |
12397 | if (dv->dev->vol.migr_type == MIGR_GEN_MIGR && |
12398 | dv->dev->vol.migr_state == 1) { | |
10f22854 AK |
12399 | dev = dv->dev; |
12400 | migr_vol_qan++; | |
895ffd99 | 12401 | subarray_index = dv->index; |
10f22854 AK |
12402 | } |
12403 | } | |
12404 | /* Only one volume can migrate at the same time */ | |
12405 | if (migr_vol_qan != 1) { | |
676e87a8 | 12406 | pr_err("%s", migr_vol_qan ? |
10f22854 AK |
12407 | "Number of migrating volumes greater than 1\n" : |
12408 | "There is no volume during migrationg\n"); | |
12409 | goto abort; | |
12410 | } | |
12411 | ||
9529d343 | 12412 | map_dest = get_imsm_map(dev, MAP_0); |
238c0a71 | 12413 | map_src = get_imsm_map(dev, MAP_1); |
10f22854 AK |
12414 | if (map_src == NULL) |
12415 | goto abort; | |
10f22854 | 12416 | |
9529d343 MD |
12417 | ndata = imsm_num_data_members(map_dest); |
12418 | odata = imsm_num_data_members(map_src); | |
10f22854 | 12419 | |
7b1ab482 | 12420 | chunk = __le16_to_cpu(map_src->blocks_per_strip) * 512; |
10f22854 AK |
12421 | old_data_stripe_length = odata * chunk; |
12422 | ||
12423 | migr_rec = super->migr_rec; | |
12424 | ||
10f22854 AK |
12425 | /* initialize migration record for start condition */ |
12426 | if (sra->reshape_progress == 0) | |
12427 | init_migr_record_imsm(st, dev, sra); | |
b2c59438 AK |
12428 | else { |
12429 | if (__le32_to_cpu(migr_rec->rec_status) != UNIT_SRC_NORMAL) { | |
7a862a02 | 12430 | dprintf("imsm: cannot restart migration when data are present in copy area.\n"); |
b2c59438 AK |
12431 | goto abort; |
12432 | } | |
6a75c8ca AK |
12433 | /* Save checkpoint to update migration record for current |
12434 | * reshape position (in md). It can be farther than current | |
12435 | * reshape position in metadata. | |
12436 | */ | |
12437 | if (save_checkpoint_imsm(st, sra, UNIT_SRC_NORMAL) == 1) { | |
12438 | /* ignore error == 2, this can mean end of reshape here | |
12439 | */ | |
7a862a02 | 12440 | dprintf("imsm: Cannot write checkpoint to migration record (UNIT_SRC_NORMAL, initial save)\n"); |
6a75c8ca AK |
12441 | goto abort; |
12442 | } | |
b2c59438 | 12443 | } |
10f22854 AK |
12444 | |
12445 | /* size for data */ | |
12446 | buf_size = __le32_to_cpu(migr_rec->blocks_per_unit) * 512; | |
12447 | /* extend buffer size for parity disk */ | |
12448 | buf_size += __le32_to_cpu(migr_rec->dest_depth_per_unit) * 512; | |
3e684231 | 12449 | /* add space for stripe alignment */ |
10f22854 | 12450 | buf_size += old_data_stripe_length; |
de44e46f PB |
12451 | if (posix_memalign((void **)&buf, MAX_SECTOR_SIZE, buf_size)) { |
12452 | dprintf("imsm: Cannot allocate checkpoint buffer\n"); | |
10f22854 AK |
12453 | goto abort; |
12454 | } | |
12455 | ||
3ef4403c | 12456 | max_position = sra->component_size * ndata; |
68eb8bc6 | 12457 | source_layout = imsm_level_to_layout(map_src->raid_level); |
10f22854 | 12458 | |
9f421827 PB |
12459 | while (current_migr_unit(migr_rec) < |
12460 | get_num_migr_units(migr_rec)) { | |
10f22854 AK |
12461 | /* current reshape position [blocks] */ |
12462 | unsigned long long current_position = | |
12463 | __le32_to_cpu(migr_rec->blocks_per_unit) | |
9f421827 | 12464 | * current_migr_unit(migr_rec); |
10f22854 AK |
12465 | unsigned long long border; |
12466 | ||
b915c95f AK |
12467 | /* Check that array hasn't become failed. |
12468 | */ | |
12469 | degraded = check_degradation_change(sra, fds, degraded); | |
12470 | if (degraded > 1) { | |
7a862a02 | 12471 | dprintf("imsm: Abort reshape due to degradation level (%i)\n", degraded); |
b915c95f AK |
12472 | goto abort; |
12473 | } | |
12474 | ||
10f22854 AK |
12475 | next_step = __le32_to_cpu(migr_rec->blocks_per_unit); |
12476 | ||
12477 | if ((current_position + next_step) > max_position) | |
12478 | next_step = max_position - current_position; | |
12479 | ||
92144abf | 12480 | start = current_position * 512; |
10f22854 | 12481 | |
942e1cdb | 12482 | /* align reading start to old geometry */ |
10f22854 AK |
12483 | start_buf_shift = start % old_data_stripe_length; |
12484 | start_src = start - start_buf_shift; | |
12485 | ||
12486 | border = (start_src / odata) - (start / ndata); | |
12487 | border /= 512; | |
12488 | if (border <= __le32_to_cpu(migr_rec->dest_depth_per_unit)) { | |
12489 | /* save critical stripes to buf | |
12490 | * start - start address of current unit | |
12491 | * to backup [bytes] | |
12492 | * start_src - start address of current unit | |
12493 | * to backup alligned to source array | |
12494 | * [bytes] | |
12495 | */ | |
594dc1b8 | 12496 | unsigned long long next_step_filler; |
10f22854 AK |
12497 | unsigned long long copy_length = next_step * 512; |
12498 | ||
12499 | /* allign copy area length to stripe in old geometry */ | |
12500 | next_step_filler = ((copy_length + start_buf_shift) | |
12501 | % old_data_stripe_length); | |
12502 | if (next_step_filler) | |
12503 | next_step_filler = (old_data_stripe_length | |
12504 | - next_step_filler); | |
7a862a02 | 12505 | 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 |
12506 | start, start_src, copy_length, |
12507 | start_buf_shift, next_step_filler); | |
12508 | ||
12509 | if (save_stripes(fds, offsets, map_src->num_members, | |
ab724b98 AK |
12510 | chunk, map_src->raid_level, |
12511 | source_layout, 0, NULL, start_src, | |
10f22854 AK |
12512 | copy_length + |
12513 | next_step_filler + start_buf_shift, | |
12514 | buf)) { | |
7a862a02 | 12515 | dprintf("imsm: Cannot save stripes to buffer\n"); |
10f22854 AK |
12516 | goto abort; |
12517 | } | |
12518 | /* Convert data to destination format and store it | |
12519 | * in backup general migration area | |
12520 | */ | |
12521 | if (save_backup_imsm(st, dev, sra, | |
aea93171 | 12522 | buf + start_buf_shift, copy_length)) { |
7a862a02 | 12523 | dprintf("imsm: Cannot save stripes to target devices\n"); |
10f22854 AK |
12524 | goto abort; |
12525 | } | |
12526 | if (save_checkpoint_imsm(st, sra, | |
12527 | UNIT_SRC_IN_CP_AREA)) { | |
7a862a02 | 12528 | dprintf("imsm: Cannot write checkpoint to migration record (UNIT_SRC_IN_CP_AREA)\n"); |
10f22854 AK |
12529 | goto abort; |
12530 | } | |
8016a6d4 AK |
12531 | } else { |
12532 | /* set next step to use whole border area */ | |
12533 | border /= next_step; | |
12534 | if (border > 1) | |
12535 | next_step *= border; | |
10f22854 AK |
12536 | } |
12537 | /* When data backed up, checkpoint stored, | |
12538 | * kick the kernel to reshape unit of data | |
12539 | */ | |
12540 | next_step = next_step + sra->reshape_progress; | |
8016a6d4 AK |
12541 | /* limit next step to array max position */ |
12542 | if (next_step > max_position) | |
12543 | next_step = max_position; | |
10f22854 AK |
12544 | sysfs_set_num(sra, NULL, "suspend_lo", sra->reshape_progress); |
12545 | sysfs_set_num(sra, NULL, "suspend_hi", next_step); | |
ae9f01f8 | 12546 | sra->reshape_progress = next_step; |
10f22854 AK |
12547 | |
12548 | /* wait until reshape finish */ | |
c85338c6 | 12549 | if (wait_for_reshape_imsm(sra, ndata)) { |
c47b0ff6 AK |
12550 | dprintf("wait_for_reshape_imsm returned error!\n"); |
12551 | goto abort; | |
12552 | } | |
84d11e6c N |
12553 | if (sigterm) |
12554 | goto abort; | |
10f22854 | 12555 | |
0228d92c AK |
12556 | if (save_checkpoint_imsm(st, sra, UNIT_SRC_NORMAL) == 1) { |
12557 | /* ignore error == 2, this can mean end of reshape here | |
12558 | */ | |
7a862a02 | 12559 | dprintf("imsm: Cannot write checkpoint to migration record (UNIT_SRC_NORMAL)\n"); |
10f22854 AK |
12560 | goto abort; |
12561 | } | |
12562 | ||
12563 | } | |
12564 | ||
71e5411e PB |
12565 | /* clear migr_rec on disks after successful migration */ |
12566 | struct dl *d; | |
12567 | ||
85337573 | 12568 | memset(super->migr_rec_buf, 0, MIGR_REC_BUF_SECTORS*MAX_SECTOR_SIZE); |
71e5411e PB |
12569 | for (d = super->disks; d; d = d->next) { |
12570 | if (d->index < 0 || is_failed(&d->disk)) | |
12571 | continue; | |
12572 | unsigned long long dsize; | |
12573 | ||
12574 | get_dev_size(d->fd, NULL, &dsize); | |
de44e46f | 12575 | if (lseek64(d->fd, dsize - MIGR_REC_SECTOR_POSITION*sector_size, |
71e5411e | 12576 | SEEK_SET) >= 0) { |
466070ad | 12577 | if ((unsigned int)write(d->fd, super->migr_rec_buf, |
de44e46f PB |
12578 | MIGR_REC_BUF_SECTORS*sector_size) != |
12579 | MIGR_REC_BUF_SECTORS*sector_size) | |
71e5411e PB |
12580 | perror("Write migr_rec failed"); |
12581 | } | |
12582 | } | |
12583 | ||
10f22854 AK |
12584 | /* return '1' if done */ |
12585 | ret_val = 1; | |
895ffd99 MT |
12586 | |
12587 | /* After the reshape eliminate size mismatch in metadata. | |
12588 | * Don't update md/component_size here, volume hasn't | |
12589 | * to take whole space. It is allowed by kernel. | |
12590 | * md/component_size will be set propoperly after next assembly. | |
12591 | */ | |
12592 | imsm_fix_size_mismatch(st, subarray_index); | |
12593 | ||
10f22854 AK |
12594 | abort: |
12595 | free(buf); | |
942e1cdb N |
12596 | /* See Grow.c: abort_reshape() for further explanation */ |
12597 | sysfs_set_num(sra, NULL, "suspend_lo", 0x7FFFFFFFFFFFFFFFULL); | |
12598 | sysfs_set_num(sra, NULL, "suspend_hi", 0); | |
12599 | sysfs_set_num(sra, NULL, "suspend_lo", 0); | |
10f22854 AK |
12600 | |
12601 | return ret_val; | |
999b4972 | 12602 | } |
0c21b485 | 12603 | |
fbc42556 JR |
12604 | /******************************************************************************* |
12605 | * Function: calculate_bitmap_min_chunksize | |
12606 | * Description: Calculates the minimal valid bitmap chunk size | |
12607 | * Parameters: | |
12608 | * max_bits : indicate how many bits can be used for the bitmap | |
12609 | * data_area_size : the size of the data area covered by the bitmap | |
12610 | * | |
12611 | * Returns: | |
12612 | * The bitmap chunk size | |
12613 | ******************************************************************************/ | |
12614 | static unsigned long long | |
12615 | calculate_bitmap_min_chunksize(unsigned long long max_bits, | |
12616 | unsigned long long data_area_size) | |
12617 | { | |
12618 | unsigned long long min_chunk = | |
12619 | 4096; /* sub-page chunks don't work yet.. */ | |
12620 | unsigned long long bits = data_area_size / min_chunk + 1; | |
12621 | ||
12622 | while (bits > max_bits) { | |
12623 | min_chunk *= 2; | |
12624 | bits = (bits + 1) / 2; | |
12625 | } | |
12626 | return min_chunk; | |
12627 | } | |
12628 | ||
12629 | /******************************************************************************* | |
12630 | * Function: calculate_bitmap_chunksize | |
12631 | * Description: Calculates the bitmap chunk size for the given device | |
12632 | * Parameters: | |
12633 | * st : supertype information | |
12634 | * dev : device for the bitmap | |
12635 | * | |
12636 | * Returns: | |
12637 | * The bitmap chunk size | |
12638 | ******************************************************************************/ | |
12639 | static unsigned long long calculate_bitmap_chunksize(struct supertype *st, | |
12640 | struct imsm_dev *dev) | |
12641 | { | |
12642 | struct intel_super *super = st->sb; | |
12643 | unsigned long long min_chunksize; | |
12644 | unsigned long long result = IMSM_DEFAULT_BITMAP_CHUNKSIZE; | |
12645 | size_t dev_size = imsm_dev_size(dev); | |
12646 | ||
12647 | min_chunksize = calculate_bitmap_min_chunksize( | |
12648 | IMSM_BITMAP_AREA_SIZE * super->sector_size, dev_size); | |
12649 | ||
12650 | if (result < min_chunksize) | |
12651 | result = min_chunksize; | |
12652 | ||
12653 | return result; | |
12654 | } | |
12655 | ||
12656 | /******************************************************************************* | |
12657 | * Function: init_bitmap_header | |
12658 | * Description: Initialize the bitmap header structure | |
12659 | * Parameters: | |
12660 | * st : supertype information | |
12661 | * bms : bitmap header struct to initialize | |
12662 | * dev : device for the bitmap | |
12663 | * | |
12664 | * Returns: | |
12665 | * 0 : success | |
12666 | * -1 : fail | |
12667 | ******************************************************************************/ | |
12668 | static int init_bitmap_header(struct supertype *st, struct bitmap_super_s *bms, | |
12669 | struct imsm_dev *dev) | |
12670 | { | |
12671 | int vol_uuid[4]; | |
12672 | ||
12673 | if (!bms || !dev) | |
12674 | return -1; | |
12675 | ||
12676 | bms->magic = __cpu_to_le32(BITMAP_MAGIC); | |
12677 | bms->version = __cpu_to_le32(BITMAP_MAJOR_HI); | |
12678 | bms->daemon_sleep = __cpu_to_le32(IMSM_DEFAULT_BITMAP_DAEMON_SLEEP); | |
12679 | bms->sync_size = __cpu_to_le64(IMSM_BITMAP_AREA_SIZE); | |
12680 | bms->write_behind = __cpu_to_le32(0); | |
12681 | ||
12682 | uuid_from_super_imsm(st, vol_uuid); | |
12683 | memcpy(bms->uuid, vol_uuid, 16); | |
12684 | ||
12685 | bms->chunksize = calculate_bitmap_chunksize(st, dev); | |
12686 | ||
12687 | return 0; | |
12688 | } | |
12689 | ||
12690 | /******************************************************************************* | |
12691 | * Function: validate_internal_bitmap_for_drive | |
12692 | * Description: Verify if the bitmap header for a given drive. | |
12693 | * Parameters: | |
12694 | * st : supertype information | |
12695 | * offset : The offset from the beginning of the drive where to look for | |
12696 | * the bitmap header. | |
12697 | * d : the drive info | |
12698 | * | |
12699 | * Returns: | |
12700 | * 0 : success | |
12701 | * -1 : fail | |
12702 | ******************************************************************************/ | |
12703 | static int validate_internal_bitmap_for_drive(struct supertype *st, | |
12704 | unsigned long long offset, | |
12705 | struct dl *d) | |
12706 | { | |
12707 | struct intel_super *super = st->sb; | |
12708 | int ret = -1; | |
12709 | int vol_uuid[4]; | |
12710 | bitmap_super_t *bms; | |
12711 | int fd; | |
12712 | ||
12713 | if (!d) | |
12714 | return -1; | |
12715 | ||
12716 | void *read_buf; | |
12717 | ||
12718 | if (posix_memalign(&read_buf, MAX_SECTOR_SIZE, IMSM_BITMAP_HEADER_SIZE)) | |
12719 | return -1; | |
12720 | ||
12721 | fd = d->fd; | |
4389ce73 | 12722 | if (!is_fd_valid(fd)) { |
fbc42556 | 12723 | fd = open(d->devname, O_RDONLY, 0); |
4389ce73 MT |
12724 | |
12725 | if (!is_fd_valid(fd)) { | |
fbc42556 JR |
12726 | dprintf("cannot open the device %s\n", d->devname); |
12727 | goto abort; | |
12728 | } | |
12729 | } | |
12730 | ||
12731 | if (lseek64(fd, offset * super->sector_size, SEEK_SET) < 0) | |
12732 | goto abort; | |
12733 | if (read(fd, read_buf, IMSM_BITMAP_HEADER_SIZE) != | |
12734 | IMSM_BITMAP_HEADER_SIZE) | |
12735 | goto abort; | |
12736 | ||
12737 | uuid_from_super_imsm(st, vol_uuid); | |
12738 | ||
12739 | bms = read_buf; | |
12740 | if ((bms->magic != __cpu_to_le32(BITMAP_MAGIC)) || | |
12741 | (bms->version != __cpu_to_le32(BITMAP_MAJOR_HI)) || | |
12742 | (!same_uuid((int *)bms->uuid, vol_uuid, st->ss->swapuuid))) { | |
12743 | dprintf("wrong bitmap header detected\n"); | |
12744 | goto abort; | |
12745 | } | |
12746 | ||
12747 | ret = 0; | |
12748 | abort: | |
4389ce73 MT |
12749 | if (!is_fd_valid(d->fd)) |
12750 | close_fd(&fd); | |
12751 | ||
fbc42556 JR |
12752 | if (read_buf) |
12753 | free(read_buf); | |
12754 | ||
12755 | return ret; | |
12756 | } | |
12757 | ||
12758 | /******************************************************************************* | |
12759 | * Function: validate_internal_bitmap_imsm | |
12760 | * Description: Verify if the bitmap header is in place and with proper data. | |
12761 | * Parameters: | |
12762 | * st : supertype information | |
12763 | * | |
12764 | * Returns: | |
12765 | * 0 : success or device w/o RWH_BITMAP | |
12766 | * -1 : fail | |
12767 | ******************************************************************************/ | |
12768 | static int validate_internal_bitmap_imsm(struct supertype *st) | |
12769 | { | |
12770 | struct intel_super *super = st->sb; | |
12771 | struct imsm_dev *dev = get_imsm_dev(super, super->current_vol); | |
12772 | unsigned long long offset; | |
12773 | struct dl *d; | |
12774 | ||
fbc42556 JR |
12775 | if (dev->rwh_policy != RWH_BITMAP) |
12776 | return 0; | |
12777 | ||
12778 | offset = get_bitmap_header_sector(super, super->current_vol); | |
12779 | for (d = super->disks; d; d = d->next) { | |
12780 | if (d->index < 0 || is_failed(&d->disk)) | |
12781 | continue; | |
12782 | ||
12783 | if (validate_internal_bitmap_for_drive(st, offset, d)) { | |
12784 | pr_err("imsm: bitmap validation failed\n"); | |
12785 | return -1; | |
12786 | } | |
12787 | } | |
12788 | return 0; | |
12789 | } | |
12790 | ||
12791 | /******************************************************************************* | |
12792 | * Function: add_internal_bitmap_imsm | |
12793 | * Description: Mark the volume to use the bitmap and updates the chunk size value. | |
12794 | * Parameters: | |
12795 | * st : supertype information | |
12796 | * chunkp : bitmap chunk size | |
12797 | * delay : not used for imsm | |
12798 | * write_behind : not used for imsm | |
12799 | * size : not used for imsm | |
12800 | * may_change : not used for imsm | |
12801 | * amajor : not used for imsm | |
12802 | * | |
12803 | * Returns: | |
12804 | * 0 : success | |
12805 | * -1 : fail | |
12806 | ******************************************************************************/ | |
12807 | static int add_internal_bitmap_imsm(struct supertype *st, int *chunkp, | |
12808 | int delay, int write_behind, | |
12809 | unsigned long long size, int may_change, | |
12810 | int amajor) | |
12811 | { | |
12812 | struct intel_super *super = st->sb; | |
12813 | int vol_idx = super->current_vol; | |
12814 | struct imsm_dev *dev; | |
12815 | ||
12816 | if (!super->devlist || vol_idx == -1 || !chunkp) | |
12817 | return -1; | |
12818 | ||
12819 | dev = get_imsm_dev(super, vol_idx); | |
fbc42556 | 12820 | dev->rwh_policy = RWH_BITMAP; |
fbc42556 | 12821 | *chunkp = calculate_bitmap_chunksize(st, dev); |
fbc42556 JR |
12822 | return 0; |
12823 | } | |
12824 | ||
12825 | /******************************************************************************* | |
12826 | * Function: locate_bitmap_imsm | |
12827 | * Description: Seek 'fd' to start of write-intent-bitmap. | |
12828 | * Parameters: | |
12829 | * st : supertype information | |
12830 | * fd : file descriptor for the device | |
12831 | * node_num : not used for imsm | |
12832 | * | |
12833 | * Returns: | |
12834 | * 0 : success | |
12835 | * -1 : fail | |
12836 | ******************************************************************************/ | |
12837 | static int locate_bitmap_imsm(struct supertype *st, int fd, int node_num) | |
12838 | { | |
12839 | struct intel_super *super = st->sb; | |
12840 | unsigned long long offset; | |
12841 | int vol_idx = super->current_vol; | |
12842 | ||
12843 | if (!super->devlist || vol_idx == -1) | |
12844 | return -1; | |
12845 | ||
12846 | offset = get_bitmap_header_sector(super, super->current_vol); | |
12847 | dprintf("bitmap header offset is %llu\n", offset); | |
12848 | ||
12849 | lseek64(fd, offset << 9, 0); | |
12850 | ||
12851 | return 0; | |
12852 | } | |
12853 | ||
12854 | /******************************************************************************* | |
12855 | * Function: write_init_bitmap_imsm | |
12856 | * Description: Write a bitmap header and prepares the area for the bitmap. | |
12857 | * Parameters: | |
12858 | * st : supertype information | |
12859 | * fd : file descriptor for the device | |
12860 | * update : not used for imsm | |
12861 | * | |
12862 | * Returns: | |
12863 | * 0 : success | |
12864 | * -1 : fail | |
12865 | ******************************************************************************/ | |
12866 | static int write_init_bitmap_imsm(struct supertype *st, int fd, | |
12867 | enum bitmap_update update) | |
12868 | { | |
12869 | struct intel_super *super = st->sb; | |
12870 | int vol_idx = super->current_vol; | |
12871 | int ret = 0; | |
12872 | unsigned long long offset; | |
12873 | bitmap_super_t bms = { 0 }; | |
12874 | size_t written = 0; | |
12875 | size_t to_write; | |
12876 | ssize_t rv_num; | |
12877 | void *buf; | |
12878 | ||
12879 | if (!super->devlist || !super->sector_size || vol_idx == -1) | |
12880 | return -1; | |
12881 | ||
12882 | struct imsm_dev *dev = get_imsm_dev(super, vol_idx); | |
12883 | ||
12884 | /* first clear the space for bitmap header */ | |
12885 | unsigned long long bitmap_area_start = | |
12886 | get_bitmap_header_sector(super, vol_idx); | |
12887 | ||
12888 | dprintf("zeroing area start (%llu) and size (%u)\n", bitmap_area_start, | |
12889 | IMSM_BITMAP_AND_HEADER_SIZE / super->sector_size); | |
12890 | if (zero_disk_range(fd, bitmap_area_start, | |
12891 | IMSM_BITMAP_HEADER_SIZE / super->sector_size)) { | |
12892 | pr_err("imsm: cannot zeroing the space for the bitmap\n"); | |
12893 | return -1; | |
12894 | } | |
12895 | ||
12896 | /* The bitmap area should be filled with "1"s to perform initial | |
12897 | * synchronization. | |
12898 | */ | |
12899 | if (posix_memalign(&buf, MAX_SECTOR_SIZE, MAX_SECTOR_SIZE)) | |
12900 | return -1; | |
12901 | memset(buf, 0xFF, MAX_SECTOR_SIZE); | |
12902 | offset = get_bitmap_sector(super, vol_idx); | |
12903 | lseek64(fd, offset << 9, 0); | |
12904 | while (written < IMSM_BITMAP_AREA_SIZE) { | |
12905 | to_write = IMSM_BITMAP_AREA_SIZE - written; | |
12906 | if (to_write > MAX_SECTOR_SIZE) | |
12907 | to_write = MAX_SECTOR_SIZE; | |
12908 | rv_num = write(fd, buf, MAX_SECTOR_SIZE); | |
12909 | if (rv_num != MAX_SECTOR_SIZE) { | |
12910 | ret = -1; | |
12911 | dprintf("cannot initialize bitmap area\n"); | |
12912 | goto abort; | |
12913 | } | |
12914 | written += rv_num; | |
12915 | } | |
12916 | ||
12917 | /* write a bitmap header */ | |
12918 | init_bitmap_header(st, &bms, dev); | |
12919 | memset(buf, 0, MAX_SECTOR_SIZE); | |
12920 | memcpy(buf, &bms, sizeof(bitmap_super_t)); | |
12921 | if (locate_bitmap_imsm(st, fd, 0)) { | |
12922 | ret = -1; | |
12923 | dprintf("cannot locate the bitmap\n"); | |
12924 | goto abort; | |
12925 | } | |
12926 | if (write(fd, buf, MAX_SECTOR_SIZE) != MAX_SECTOR_SIZE) { | |
12927 | ret = -1; | |
12928 | dprintf("cannot write the bitmap header\n"); | |
12929 | goto abort; | |
12930 | } | |
12931 | fsync(fd); | |
12932 | ||
12933 | abort: | |
12934 | free(buf); | |
12935 | ||
12936 | return ret; | |
12937 | } | |
12938 | ||
12939 | /******************************************************************************* | |
12940 | * Function: is_vol_to_setup_bitmap | |
12941 | * Description: Checks if a bitmap should be activated on the dev. | |
12942 | * Parameters: | |
12943 | * info : info about the volume to setup the bitmap | |
12944 | * dev : the device to check against bitmap creation | |
12945 | * | |
12946 | * Returns: | |
12947 | * 0 : bitmap should be set up on the device | |
12948 | * -1 : otherwise | |
12949 | ******************************************************************************/ | |
12950 | static int is_vol_to_setup_bitmap(struct mdinfo *info, struct imsm_dev *dev) | |
12951 | { | |
12952 | if (!dev || !info) | |
12953 | return -1; | |
12954 | ||
12955 | if ((strcmp((char *)dev->volume, info->name) == 0) && | |
12956 | (dev->rwh_policy == RWH_BITMAP)) | |
12957 | return -1; | |
12958 | ||
12959 | return 0; | |
12960 | } | |
12961 | ||
12962 | /******************************************************************************* | |
12963 | * Function: set_bitmap_sysfs | |
12964 | * Description: Set the sysfs atributes of a given volume to activate the bitmap. | |
12965 | * Parameters: | |
12966 | * info : info about the volume where the bitmap should be setup | |
12967 | * chunksize : bitmap chunk size | |
12968 | * location : location of the bitmap | |
12969 | * | |
12970 | * Returns: | |
12971 | * 0 : success | |
12972 | * -1 : fail | |
12973 | ******************************************************************************/ | |
12974 | static int set_bitmap_sysfs(struct mdinfo *info, unsigned long long chunksize, | |
12975 | char *location) | |
12976 | { | |
12977 | /* The bitmap/metadata is set to external to allow changing of value for | |
12978 | * bitmap/location. When external is used, the kernel will treat an offset | |
12979 | * related to the device's first lba (in opposition to the "internal" case | |
12980 | * when this value is related to the beginning of the superblock). | |
12981 | */ | |
12982 | if (sysfs_set_str(info, NULL, "bitmap/metadata", "external")) { | |
12983 | dprintf("failed to set bitmap/metadata\n"); | |
12984 | return -1; | |
12985 | } | |
12986 | ||
12987 | /* It can only be changed when no bitmap is active. | |
12988 | * Should be bigger than 512 and must be power of 2. | |
12989 | * It is expecting the value in bytes. | |
12990 | */ | |
12991 | if (sysfs_set_num(info, NULL, "bitmap/chunksize", | |
12992 | __cpu_to_le32(chunksize))) { | |
12993 | dprintf("failed to set bitmap/chunksize\n"); | |
12994 | return -1; | |
12995 | } | |
12996 | ||
12997 | /* It is expecting the value in sectors. */ | |
12998 | if (sysfs_set_num(info, NULL, "bitmap/space", | |
12999 | __cpu_to_le64(IMSM_BITMAP_AREA_SIZE))) { | |
13000 | dprintf("failed to set bitmap/space\n"); | |
13001 | return -1; | |
13002 | } | |
13003 | ||
13004 | /* Determines the delay between the bitmap updates. | |
13005 | * It is expecting the value in seconds. | |
13006 | */ | |
13007 | if (sysfs_set_num(info, NULL, "bitmap/time_base", | |
13008 | __cpu_to_le64(IMSM_DEFAULT_BITMAP_DAEMON_SLEEP))) { | |
13009 | dprintf("failed to set bitmap/time_base\n"); | |
13010 | return -1; | |
13011 | } | |
13012 | ||
13013 | /* It is expecting the value in sectors with a sign at the beginning. */ | |
13014 | if (sysfs_set_str(info, NULL, "bitmap/location", location)) { | |
13015 | dprintf("failed to set bitmap/location\n"); | |
13016 | return -1; | |
13017 | } | |
13018 | ||
13019 | return 0; | |
13020 | } | |
13021 | ||
13022 | /******************************************************************************* | |
13023 | * Function: set_bitmap_imsm | |
13024 | * Description: Setup the bitmap for the given volume | |
13025 | * Parameters: | |
13026 | * st : supertype information | |
13027 | * info : info about the volume where the bitmap should be setup | |
13028 | * | |
13029 | * Returns: | |
13030 | * 0 : success | |
13031 | * -1 : fail | |
13032 | ******************************************************************************/ | |
13033 | static int set_bitmap_imsm(struct supertype *st, struct mdinfo *info) | |
13034 | { | |
13035 | struct intel_super *super = st->sb; | |
13036 | int prev_current_vol = super->current_vol; | |
13037 | struct imsm_dev *dev; | |
13038 | int ret = -1; | |
13039 | char location[16] = ""; | |
13040 | unsigned long long chunksize; | |
13041 | struct intel_dev *dev_it; | |
13042 | ||
13043 | for (dev_it = super->devlist; dev_it; dev_it = dev_it->next) { | |
13044 | super->current_vol = dev_it->index; | |
13045 | dev = get_imsm_dev(super, super->current_vol); | |
13046 | ||
13047 | if (is_vol_to_setup_bitmap(info, dev)) { | |
13048 | if (validate_internal_bitmap_imsm(st)) { | |
13049 | dprintf("bitmap header validation failed\n"); | |
13050 | goto abort; | |
13051 | } | |
13052 | ||
13053 | chunksize = calculate_bitmap_chunksize(st, dev); | |
13054 | dprintf("chunk size is %llu\n", chunksize); | |
13055 | ||
13056 | snprintf(location, sizeof(location), "+%llu", | |
13057 | get_bitmap_sector(super, super->current_vol)); | |
13058 | dprintf("bitmap offset is %s\n", location); | |
13059 | ||
13060 | if (set_bitmap_sysfs(info, chunksize, location)) { | |
13061 | dprintf("cannot setup the bitmap\n"); | |
13062 | goto abort; | |
13063 | } | |
13064 | } | |
13065 | } | |
13066 | ret = 0; | |
13067 | abort: | |
13068 | super->current_vol = prev_current_vol; | |
13069 | return ret; | |
13070 | } | |
13071 | ||
cdddbdbc | 13072 | struct superswitch super_imsm = { |
cdddbdbc DW |
13073 | .examine_super = examine_super_imsm, |
13074 | .brief_examine_super = brief_examine_super_imsm, | |
4737ae25 | 13075 | .brief_examine_subarrays = brief_examine_subarrays_imsm, |
9d84c8ea | 13076 | .export_examine_super = export_examine_super_imsm, |
cdddbdbc DW |
13077 | .detail_super = detail_super_imsm, |
13078 | .brief_detail_super = brief_detail_super_imsm, | |
bf5a934a | 13079 | .write_init_super = write_init_super_imsm, |
0e600426 N |
13080 | .validate_geometry = validate_geometry_imsm, |
13081 | .add_to_super = add_to_super_imsm, | |
1a64be56 | 13082 | .remove_from_super = remove_from_super_imsm, |
d665cc31 | 13083 | .detail_platform = detail_platform_imsm, |
e50cf220 | 13084 | .export_detail_platform = export_detail_platform_imsm, |
33414a01 | 13085 | .kill_subarray = kill_subarray_imsm, |
aa534678 | 13086 | .update_subarray = update_subarray_imsm, |
2b959fbf | 13087 | .load_container = load_container_imsm, |
71204a50 | 13088 | .default_geometry = default_geometry_imsm, |
e21aea08 | 13089 | .test_and_add_drive_policies = test_and_add_drive_policies_imsm, |
71204a50 N |
13090 | .reshape_super = imsm_reshape_super, |
13091 | .manage_reshape = imsm_manage_reshape, | |
9e2d750d | 13092 | .recover_backup = recover_backup_imsm, |
27156a57 | 13093 | .examine_badblocks = examine_badblocks_imsm, |
cdddbdbc DW |
13094 | .match_home = match_home_imsm, |
13095 | .uuid_from_super= uuid_from_super_imsm, | |
13096 | .getinfo_super = getinfo_super_imsm, | |
5c4cd5da | 13097 | .getinfo_super_disks = getinfo_super_disks_imsm, |
cdddbdbc DW |
13098 | .update_super = update_super_imsm, |
13099 | ||
13100 | .avail_size = avail_size_imsm, | |
fbfdcb06 | 13101 | .get_spare_criteria = get_spare_criteria_imsm, |
cdddbdbc DW |
13102 | |
13103 | .compare_super = compare_super_imsm, | |
13104 | ||
13105 | .load_super = load_super_imsm, | |
bf5a934a | 13106 | .init_super = init_super_imsm, |
e683ca88 | 13107 | .store_super = store_super_imsm, |
cdddbdbc DW |
13108 | .free_super = free_super_imsm, |
13109 | .match_metadata_desc = match_metadata_desc_imsm, | |
bf5a934a | 13110 | .container_content = container_content_imsm, |
0c21b485 | 13111 | .validate_container = validate_container_imsm, |
cdddbdbc | 13112 | |
fbc42556 JR |
13113 | .add_internal_bitmap = add_internal_bitmap_imsm, |
13114 | .locate_bitmap = locate_bitmap_imsm, | |
13115 | .write_bitmap = write_init_bitmap_imsm, | |
13116 | .set_bitmap = set_bitmap_imsm, | |
13117 | ||
2432ce9b AP |
13118 | .write_init_ppl = write_init_ppl_imsm, |
13119 | .validate_ppl = validate_ppl_imsm, | |
13120 | ||
cdddbdbc | 13121 | .external = 1, |
1c832795 | 13122 | .swapuuid = 0, |
4cce4069 | 13123 | .name = "imsm", |
845dea95 NB |
13124 | |
13125 | /* for mdmon */ | |
13126 | .open_new = imsm_open_new, | |
ed9d66aa | 13127 | .set_array_state= imsm_set_array_state, |
845dea95 NB |
13128 | .set_disk = imsm_set_disk, |
13129 | .sync_metadata = imsm_sync_metadata, | |
88758e9d | 13130 | .activate_spare = imsm_activate_spare, |
e8319a19 | 13131 | .process_update = imsm_process_update, |
8273f55e | 13132 | .prepare_update = imsm_prepare_update, |
6f50473f | 13133 | .record_bad_block = imsm_record_badblock, |
c07a5a4f | 13134 | .clear_bad_block = imsm_clear_badblock, |
928f1424 | 13135 | .get_bad_blocks = imsm_get_badblocks, |
cdddbdbc | 13136 | }; |