Lines Matching +full:four +full:- +full:lane
1 // SPDX-License-Identifier: GPL-2.0-only
4 * Copyright (c) 2014-2015, Intel Corporation.
18 #include <linux/backing-dev.h>
30 return &arena->nd_btt->dev; in to_dev()
35 return offset + nd_btt->initial_offset; in adjust_initial_offset()
41 struct nd_btt *nd_btt = arena->nd_btt; in arena_read_bytes()
42 struct nd_namespace_common *ndns = nd_btt->ndns; in arena_read_bytes()
52 struct nd_btt *nd_btt = arena->nd_btt; in arena_write_bytes()
53 struct nd_namespace_common *ndns = nd_btt->ndns; in arena_write_bytes()
69 dev_WARN_ONCE(to_dev(arena), !IS_ALIGNED(arena->infooff, 512), in btt_info_write()
70 "arena->infooff: %#llx is unaligned\n", arena->infooff); in btt_info_write()
71 dev_WARN_ONCE(to_dev(arena), !IS_ALIGNED(arena->info2off, 512), in btt_info_write()
72 "arena->info2off: %#llx is unaligned\n", arena->info2off); in btt_info_write()
74 ret = arena_write_bytes(arena, arena->info2off, super, in btt_info_write()
79 return arena_write_bytes(arena, arena->infooff, super, in btt_info_write()
85 return arena_read_bytes(arena, arena->infooff, super, in btt_info_read()
92 * mapping is in little-endian
98 u64 ns_off = arena->mapoff + (lba * MAP_ENT_SIZE); in __btt_map_write()
100 if (unlikely(lba >= arena->external_nlba)) in __btt_map_write()
103 __func__, lba, arena->external_nlba); in __btt_map_write()
144 return -EIO; in btt_map_write()
157 u64 ns_off = arena->mapoff + (lba * MAP_ENT_SIZE); in btt_map_read()
159 if (unlikely(lba >= arena->external_nlba)) in btt_map_read()
162 __func__, lba, arena->external_nlba); in btt_map_read()
196 return -EIO; in btt_map_read()
207 static int btt_log_group_read(struct arena_info *arena, u32 lane, in btt_log_group_read() argument
211 arena->logoff + (lane * LOG_GRP_SIZE), log, in btt_log_group_read()
231 a->debugfs_dir = d; in arena_debugfs_init()
233 debugfs_create_x64("size", S_IRUGO, d, &a->size); in arena_debugfs_init()
235 &a->external_lba_start); in arena_debugfs_init()
236 debugfs_create_x32("internal_nlba", S_IRUGO, d, &a->internal_nlba); in arena_debugfs_init()
238 &a->internal_lbasize); in arena_debugfs_init()
239 debugfs_create_x32("external_nlba", S_IRUGO, d, &a->external_nlba); in arena_debugfs_init()
241 &a->external_lbasize); in arena_debugfs_init()
242 debugfs_create_u32("nfree", S_IRUGO, d, &a->nfree); in arena_debugfs_init()
243 debugfs_create_u16("version_major", S_IRUGO, d, &a->version_major); in arena_debugfs_init()
244 debugfs_create_u16("version_minor", S_IRUGO, d, &a->version_minor); in arena_debugfs_init()
245 debugfs_create_x64("nextoff", S_IRUGO, d, &a->nextoff); in arena_debugfs_init()
246 debugfs_create_x64("infooff", S_IRUGO, d, &a->infooff); in arena_debugfs_init()
247 debugfs_create_x64("dataoff", S_IRUGO, d, &a->dataoff); in arena_debugfs_init()
248 debugfs_create_x64("mapoff", S_IRUGO, d, &a->mapoff); in arena_debugfs_init()
249 debugfs_create_x64("logoff", S_IRUGO, d, &a->logoff); in arena_debugfs_init()
250 debugfs_create_x64("info2off", S_IRUGO, d, &a->info2off); in arena_debugfs_init()
251 debugfs_create_x32("flags", S_IRUGO, d, &a->flags); in arena_debugfs_init()
252 debugfs_create_u32("log_index_0", S_IRUGO, d, &a->log_index[0]); in arena_debugfs_init()
253 debugfs_create_u32("log_index_1", S_IRUGO, d, &a->log_index[1]); in arena_debugfs_init()
261 btt->debugfs_dir = debugfs_create_dir(dev_name(&btt->nd_btt->dev), in btt_debugfs_init()
263 if (IS_ERR_OR_NULL(btt->debugfs_dir)) in btt_debugfs_init()
266 list_for_each_entry(arena, &btt->arena_list, list) { in btt_debugfs_init()
267 arena_debugfs_init(arena, btt->debugfs_dir, i); in btt_debugfs_init()
274 return le32_to_cpu(log->ent[log_idx].seq); in log_seq()
284 * TODO The logic feels a bit kludge-y. make it better..
288 int idx0 = a->log_index[0]; in btt_log_get_old()
289 int idx1 = a->log_index[1]; in btt_log_get_old()
298 log->ent[idx0].seq = cpu_to_le32(1); in btt_log_get_old()
303 return -EINVAL; in btt_log_get_old()
305 return -EINVAL; in btt_log_get_old()
308 if ((log_seq(log, idx1) - log_seq(log, idx0)) == 1) in btt_log_get_old()
313 if ((log_seq(log, idx0) - log_seq(log, idx1)) == 1) in btt_log_get_old()
324 * it is not NULL. It returns the sub-slot number (0 or 1)
328 static int btt_log_read(struct arena_info *arena, u32 lane, in btt_log_read() argument
335 ret = btt_log_group_read(arena, lane, &log); in btt_log_read()
337 return -EIO; in btt_log_read()
342 "log corruption (%d): lane %d seq [%d, %d]\n", in btt_log_read()
343 old_ent, lane, log.ent[arena->log_index[0]].seq, in btt_log_read()
344 log.ent[arena->log_index[1]].seq); in btt_log_read()
346 return -EIO; in btt_log_read()
349 ret_ent = (old_flag ? old_ent : (1 - old_ent)); in btt_log_read()
352 memcpy(ent, &log.ent[arena->log_index[ret_ent]], LOG_ENT_SIZE); in btt_log_read()
362 static int __btt_log_write(struct arena_info *arena, u32 lane, in __btt_log_write() argument
366 u32 group_slot = arena->log_index[sub]; in __btt_log_write()
371 ns_off = arena->logoff + (lane * LOG_GRP_SIZE) + in __btt_log_write()
383 static int btt_flog_write(struct arena_info *arena, u32 lane, u32 sub, in btt_flog_write() argument
388 ret = __btt_log_write(arena, lane, sub, ent, NVDIMM_IO_ATOMIC); in btt_flog_write()
393 arena->freelist[lane].sub = 1 - arena->freelist[lane].sub; in btt_flog_write()
394 if (++(arena->freelist[lane].seq) == 4) in btt_flog_write()
395 arena->freelist[lane].seq = 1; in btt_flog_write()
396 if (ent_e_flag(le32_to_cpu(ent->old_map))) in btt_flog_write()
397 arena->freelist[lane].has_err = 1; in btt_flog_write()
398 arena->freelist[lane].block = ent_lba(le32_to_cpu(ent->old_map)); in btt_flog_write()
405 * all-zeroes, and indicates an identity mapping
409 int ret = -EINVAL; in btt_map_init()
413 size_t mapsize = arena->logoff - arena->mapoff; in btt_map_init()
417 return -ENOMEM; in btt_map_init()
424 dev_WARN_ONCE(to_dev(arena), !IS_ALIGNED(arena->mapoff, 512), in btt_map_init()
425 "arena->mapoff: %#llx is unaligned\n", arena->mapoff); in btt_map_init()
432 ret = arena_write_bytes(arena, arena->mapoff + offset, zerobuf, in btt_map_init()
438 mapsize -= size; in btt_map_init()
453 size_t logsize = arena->info2off - arena->logoff; in btt_log_init()
462 return -ENOMEM; in btt_log_init()
468 dev_WARN_ONCE(to_dev(arena), !IS_ALIGNED(arena->logoff, 512), in btt_log_init()
469 "arena->logoff: %#llx is unaligned\n", arena->logoff); in btt_log_init()
476 ret = arena_write_bytes(arena, arena->logoff + offset, zerobuf, in btt_log_init()
482 logsize -= size; in btt_log_init()
486 for (i = 0; i < arena->nfree; i++) { in btt_log_init()
488 ent.old_map = cpu_to_le32(arena->external_nlba + i); in btt_log_init()
489 ent.new_map = cpu_to_le32(arena->external_nlba + i); in btt_log_init()
503 return arena->dataoff + ((u64)lba * arena->internal_lbasize); in to_namespace_offset()
506 static int arena_clear_freelist_error(struct arena_info *arena, u32 lane) in arena_clear_freelist_error() argument
510 if (arena->freelist[lane].has_err) { in arena_clear_freelist_error()
512 u32 lba = arena->freelist[lane].block; in arena_clear_freelist_error()
514 unsigned long len = arena->sector_size; in arena_clear_freelist_error()
516 mutex_lock(&arena->err_lock); in arena_clear_freelist_error()
525 len -= chunk; in arena_clear_freelist_error()
528 arena->freelist[lane].has_err = 0; in arena_clear_freelist_error()
530 mutex_unlock(&arena->err_lock); in arena_clear_freelist_error()
541 arena->freelist = kcalloc(arena->nfree, sizeof(struct free_entry), in btt_freelist_init()
543 if (!arena->freelist) in btt_freelist_init()
544 return -ENOMEM; in btt_freelist_init()
546 for (i = 0; i < arena->nfree; i++) { in btt_freelist_init()
556 arena->freelist[i].sub = 1 - new; in btt_freelist_init()
557 arena->freelist[i].seq = nd_inc_seq(le32_to_cpu(log_new.seq)); in btt_freelist_init()
558 arena->freelist[i].block = log_oldmap; in btt_freelist_init()
562 * the BTT read-only in btt_freelist_init()
566 arena->freelist[i].has_err = 1; in btt_freelist_init()
607 return (ent->lba == 0) && (ent->old_map == 0) && (ent->new_map == 0) in ent_is_padding()
608 && (ent->seq == 0); in ent_is_padding()
614 * four slots. We expect that a padding slot will be all-zeroes, and use this
618 * creation of this BTT layout, it will have three of the four slots with
627 int ret, log_index[2] = {-1, -1}; in log_set_indices()
632 for (i = 0; i < arena->nfree; i++) { in log_set_indices()
656 return -ENXIO; in log_set_indices()
668 return -ENXIO; in log_set_indices()
673 * lane never got used and it is still in log_set_indices()
680 return -ENXIO; in log_set_indices()
686 * non-padding entry, then the we are no longer in the in log_set_indices()
695 return -ENXIO; in log_set_indices()
712 return -ENXIO; in log_set_indices()
715 arena->log_index[0] = log_index[0]; in log_set_indices()
716 arena->log_index[1] = log_index[1]; in log_set_indices()
724 arena->rtt = kcalloc(arena->nfree, sizeof(u32), GFP_KERNEL); in btt_rtt_init()
725 if (arena->rtt == NULL) in btt_rtt_init()
726 return -ENOMEM; in btt_rtt_init()
735 arena->map_locks = kcalloc(arena->nfree, sizeof(struct aligned_lock), in btt_maplocks_init()
737 if (!arena->map_locks) in btt_maplocks_init()
738 return -ENOMEM; in btt_maplocks_init()
740 for (i = 0; i < arena->nfree; i++) in btt_maplocks_init()
741 spin_lock_init(&arena->map_locks[i].lock); in btt_maplocks_init()
756 arena->nd_btt = btt->nd_btt; in alloc_arena()
757 arena->sector_size = btt->sector_size; in alloc_arena()
758 mutex_init(&arena->err_lock); in alloc_arena()
763 arena->size = size; in alloc_arena()
764 arena->external_lba_start = start; in alloc_arena()
765 arena->external_lbasize = btt->lbasize; in alloc_arena()
766 arena->internal_lbasize = roundup(arena->external_lbasize, in alloc_arena()
768 arena->nfree = BTT_DEFAULT_NFREE; in alloc_arena()
769 arena->version_major = btt->nd_btt->version_major; in alloc_arena()
770 arena->version_minor = btt->nd_btt->version_minor; in alloc_arena()
773 available -= (available % BTT_PG_SIZE); in alloc_arena()
776 available -= 2 * BTT_PG_SIZE; in alloc_arena()
779 logsize = roundup(arena->nfree * LOG_GRP_SIZE, BTT_PG_SIZE); in alloc_arena()
780 available -= logsize; in alloc_arena()
783 arena->internal_nlba = div_u64(available - BTT_PG_SIZE, in alloc_arena()
784 arena->internal_lbasize + MAP_ENT_SIZE); in alloc_arena()
785 arena->external_nlba = arena->internal_nlba - arena->nfree; in alloc_arena()
787 mapsize = roundup((arena->external_nlba * MAP_ENT_SIZE), BTT_PG_SIZE); in alloc_arena()
788 datasize = available - mapsize; in alloc_arena()
791 arena->infooff = arena_off; in alloc_arena()
792 arena->dataoff = arena->infooff + BTT_PG_SIZE; in alloc_arena()
793 arena->mapoff = arena->dataoff + datasize; in alloc_arena()
794 arena->logoff = arena->mapoff + mapsize; in alloc_arena()
795 arena->info2off = arena->logoff + logsize; in alloc_arena()
798 arena->log_index[0] = 0; in alloc_arena()
799 arena->log_index[1] = 1; in alloc_arena()
807 list_for_each_entry_safe(arena, next, &btt->arena_list, list) { in free_arenas()
808 list_del(&arena->list); in free_arenas()
809 kfree(arena->rtt); in free_arenas()
810 kfree(arena->map_locks); in free_arenas()
811 kfree(arena->freelist); in free_arenas()
812 debugfs_remove_recursive(arena->debugfs_dir); in free_arenas()
824 arena->internal_nlba = le32_to_cpu(super->internal_nlba); in parse_arena_meta()
825 arena->internal_lbasize = le32_to_cpu(super->internal_lbasize); in parse_arena_meta()
826 arena->external_nlba = le32_to_cpu(super->external_nlba); in parse_arena_meta()
827 arena->external_lbasize = le32_to_cpu(super->external_lbasize); in parse_arena_meta()
828 arena->nfree = le32_to_cpu(super->nfree); in parse_arena_meta()
829 arena->version_major = le16_to_cpu(super->version_major); in parse_arena_meta()
830 arena->version_minor = le16_to_cpu(super->version_minor); in parse_arena_meta()
832 arena->nextoff = (super->nextoff == 0) ? 0 : (arena_off + in parse_arena_meta()
833 le64_to_cpu(super->nextoff)); in parse_arena_meta()
834 arena->infooff = arena_off; in parse_arena_meta()
835 arena->dataoff = arena_off + le64_to_cpu(super->dataoff); in parse_arena_meta()
836 arena->mapoff = arena_off + le64_to_cpu(super->mapoff); in parse_arena_meta()
837 arena->logoff = arena_off + le64_to_cpu(super->logoff); in parse_arena_meta()
838 arena->info2off = arena_off + le64_to_cpu(super->info2off); in parse_arena_meta()
840 arena->size = (le64_to_cpu(super->nextoff) > 0) in parse_arena_meta()
841 ? (le64_to_cpu(super->nextoff)) in parse_arena_meta()
842 : (arena->info2off - arena->infooff + BTT_PG_SIZE); in parse_arena_meta()
844 arena->flags = le32_to_cpu(super->flags); in parse_arena_meta()
851 size_t remaining = btt->rawsize; in discover_arenas()
858 return -ENOMEM; in discover_arenas()
864 return -ENOMEM; in discover_arenas()
866 arena->infooff = cur_off; in discover_arenas()
871 if (!nd_btt_arena_is_valid(btt->nd_btt, super)) { in discover_arenas()
872 if (remaining == btt->rawsize) { in discover_arenas()
873 btt->init_state = INIT_NOTFOUND; in discover_arenas()
879 ret = -ENODEV; in discover_arenas()
884 arena->external_lba_start = cur_nlba; in discover_arenas()
906 list_add_tail(&arena->list, &btt->arena_list); in discover_arenas()
908 remaining -= arena->size; in discover_arenas()
909 cur_off += arena->size; in discover_arenas()
910 cur_nlba += arena->external_nlba; in discover_arenas()
913 if (arena->nextoff == 0) in discover_arenas()
916 btt->num_arenas = num_arenas; in discover_arenas()
917 btt->nlba = cur_nlba; in discover_arenas()
918 btt->init_state = INIT_READY; in discover_arenas()
930 size_t remaining = btt->rawsize; in create_arenas()
937 remaining -= arena_size; in create_arenas()
941 arena = alloc_arena(btt, arena_size, btt->nlba, cur_off); in create_arenas()
944 return -ENOMEM; in create_arenas()
946 btt->nlba += arena->external_nlba; in create_arenas()
948 arena->nextoff = arena->size; in create_arenas()
950 arena->nextoff = 0; in create_arenas()
952 list_add_tail(&arena->list, &btt->arena_list); in create_arenas()
969 struct nd_btt *nd_btt = arena->nd_btt; in btt_arena_write_layout()
970 const uuid_t *parent_uuid = nd_dev_to_uuid(&nd_btt->ndns->dev); in btt_arena_write_layout()
982 return -ENOMEM; in btt_arena_write_layout()
984 strscpy(super->signature, BTT_SIG, sizeof(super->signature)); in btt_arena_write_layout()
985 export_uuid(super->uuid, nd_btt->uuid); in btt_arena_write_layout()
986 export_uuid(super->parent_uuid, parent_uuid); in btt_arena_write_layout()
987 super->flags = cpu_to_le32(arena->flags); in btt_arena_write_layout()
988 super->version_major = cpu_to_le16(arena->version_major); in btt_arena_write_layout()
989 super->version_minor = cpu_to_le16(arena->version_minor); in btt_arena_write_layout()
990 super->external_lbasize = cpu_to_le32(arena->external_lbasize); in btt_arena_write_layout()
991 super->external_nlba = cpu_to_le32(arena->external_nlba); in btt_arena_write_layout()
992 super->internal_lbasize = cpu_to_le32(arena->internal_lbasize); in btt_arena_write_layout()
993 super->internal_nlba = cpu_to_le32(arena->internal_nlba); in btt_arena_write_layout()
994 super->nfree = cpu_to_le32(arena->nfree); in btt_arena_write_layout()
995 super->infosize = cpu_to_le32(sizeof(struct btt_sb)); in btt_arena_write_layout()
996 super->nextoff = cpu_to_le64(arena->nextoff); in btt_arena_write_layout()
998 * Subtract arena->infooff (arena start) so numbers are relative in btt_arena_write_layout()
1001 super->dataoff = cpu_to_le64(arena->dataoff - arena->infooff); in btt_arena_write_layout()
1002 super->mapoff = cpu_to_le64(arena->mapoff - arena->infooff); in btt_arena_write_layout()
1003 super->logoff = cpu_to_le64(arena->logoff - arena->infooff); in btt_arena_write_layout()
1004 super->info2off = cpu_to_le64(arena->info2off - arena->infooff); in btt_arena_write_layout()
1006 super->flags = 0; in btt_arena_write_layout()
1008 super->checksum = cpu_to_le64(sum); in btt_arena_write_layout()
1025 mutex_lock(&btt->init_lock); in btt_meta_init()
1026 list_for_each_entry(arena, &btt->arena_list, list) { in btt_meta_init()
1044 btt->init_state = INIT_READY; in btt_meta_init()
1047 mutex_unlock(&btt->init_lock); in btt_meta_init()
1053 return btt->lbasize - btt->sector_size; in btt_meta_size()
1067 __u64 lba = div_u64(sector << SECTOR_SHIFT, btt->sector_size); in lba_to_arena()
1069 list_for_each_entry(arena_list, &btt->arena_list, list) { in lba_to_arena()
1070 if (lba < arena_list->external_nlba) { in lba_to_arena()
1075 lba -= arena_list->external_nlba; in lba_to_arena()
1078 return -EIO; in lba_to_arena()
1086 __acquires(&arena->map_locks[idx].lock) in lock_map()
1088 u32 idx = (premap * MAP_ENT_SIZE / L1_CACHE_BYTES) % arena->nfree; in lock_map()
1090 spin_lock(&arena->map_locks[idx].lock); in lock_map()
1094 __releases(&arena->map_locks[idx].lock) in unlock_map()
1096 u32 idx = (premap * MAP_ENT_SIZE / L1_CACHE_BYTES) % arena->nfree; in unlock_map()
1098 spin_unlock(&arena->map_locks[idx].lock); in unlock_map()
1146 meta_nsoff = to_namespace_offset(arena, postmap) + btt->sector_size; in btt_rw_integrity()
1153 bv = bvec_iter_bvec(bip->bip_vec, bip->bip_iter); in btt_rw_integrity()
1156 * .bv_offset already adjusted for iter->bi_bvec_done, and we in btt_rw_integrity()
1173 len -= cur_len; in btt_rw_integrity()
1175 if (!bvec_iter_advance(bip->bip_vec, &bip->bip_iter, cur_len)) in btt_rw_integrity()
1176 return -EIO; in btt_rw_integrity()
1197 u32 lane = 0, premap, postmap; in btt_read_pg() local
1202 lane = nd_region_acquire_lane(btt->nd_region); in btt_read_pg()
1208 cur_len = min(btt->sector_size, len); in btt_read_pg()
1230 ret = -EIO; in btt_read_pg()
1234 arena->rtt[lane] = RTT_VALID | postmap; in btt_read_pg()
1257 /* Media error - set the e_flag */ in btt_read_pg()
1271 arena->rtt[lane] = RTT_INVALID; in btt_read_pg()
1272 nd_region_release_lane(btt->nd_region, lane); in btt_read_pg()
1274 len -= cur_len; in btt_read_pg()
1276 sector += btt->sector_size >> SECTOR_SHIFT; in btt_read_pg()
1282 arena->rtt[lane] = RTT_INVALID; in btt_read_pg()
1284 nd_region_release_lane(btt->nd_region, lane); in btt_read_pg()
1296 u64 nsoff = adjust_initial_offset(arena->nd_btt, in btt_is_badblock()
1300 return is_bad_pmem(btt->phys_bb, phys_sector, arena->internal_lbasize); in btt_is_badblock()
1309 u32 premap = 0, old_postmap, new_postmap, lane = 0, i; in btt_write_pg() local
1318 lane = nd_region_acquire_lane(btt->nd_region); in btt_write_pg()
1323 cur_len = min(btt->sector_size, len); in btt_write_pg()
1325 if ((arena->flags & IB_FLAG_ERROR_MASK) != 0) { in btt_write_pg()
1326 ret = -EIO; in btt_write_pg()
1330 if (btt_is_badblock(btt, arena, arena->freelist[lane].block)) in btt_write_pg()
1331 arena->freelist[lane].has_err = 1; in btt_write_pg()
1333 if (mutex_is_locked(&arena->err_lock) in btt_write_pg()
1334 || arena->freelist[lane].has_err) { in btt_write_pg()
1335 nd_region_release_lane(btt->nd_region, lane); in btt_write_pg()
1337 ret = arena_clear_freelist_error(arena, lane); in btt_write_pg()
1341 /* OK to acquire a different lane/free block */ in btt_write_pg()
1345 new_postmap = arena->freelist[lane].block; in btt_write_pg()
1348 for (i = 0; i < arena->nfree; i++) in btt_write_pg()
1349 while (arena->rtt[i] == (RTT_VALID | new_postmap)) in btt_write_pg()
1353 if (new_postmap >= arena->internal_nlba) { in btt_write_pg()
1354 ret = -EIO; in btt_write_pg()
1374 if (old_postmap >= arena->internal_nlba) { in btt_write_pg()
1375 ret = -EIO; in btt_write_pg()
1384 log.seq = cpu_to_le32(arena->freelist[lane].seq); in btt_write_pg()
1385 sub = arena->freelist[lane].sub; in btt_write_pg()
1386 ret = btt_flog_write(arena, lane, sub, &log); in btt_write_pg()
1396 nd_region_release_lane(btt->nd_region, lane); in btt_write_pg()
1399 ret = arena_clear_freelist_error(arena, lane); in btt_write_pg()
1404 len -= cur_len; in btt_write_pg()
1406 sector += btt->sector_size >> SECTOR_SHIFT; in btt_write_pg()
1414 nd_region_release_lane(btt->nd_region, lane); in btt_write_pg()
1438 struct btt *btt = bio->bi_bdev->bd_disk->private_data; in btt_submit_bio()
1448 do_acct = blk_queue_io_stat(bio->bi_bdev->bd_disk->queue); in btt_submit_bio()
1454 if (len > PAGE_SIZE || len < btt->sector_size || in btt_submit_bio()
1455 len % btt->sector_size) { in btt_submit_bio()
1456 dev_err_ratelimited(&btt->nd_btt->dev, in btt_submit_bio()
1458 bio->bi_status = BLK_STS_IOERR; in btt_submit_bio()
1465 dev_err(&btt->nd_btt->dev, in btt_submit_bio()
1470 bio->bi_status = errno_to_blk_status(err); in btt_submit_bio()
1483 geo->heads = 1 << 6; in btt_getgeo()
1484 geo->sectors = 1 << 5; in btt_getgeo()
1485 geo->cylinders = get_capacity(bd->bd_disk) >> 11; in btt_getgeo()
1497 struct nd_btt *nd_btt = btt->nd_btt; in btt_blk_init()
1498 struct nd_namespace_common *ndns = nd_btt->ndns; in btt_blk_init()
1499 int rc = -ENOMEM; in btt_blk_init()
1501 btt->btt_disk = blk_alloc_disk(NUMA_NO_NODE); in btt_blk_init()
1502 if (!btt->btt_disk) in btt_blk_init()
1503 return -ENOMEM; in btt_blk_init()
1505 nvdimm_namespace_disk_name(ndns, btt->btt_disk->disk_name); in btt_blk_init()
1506 btt->btt_disk->first_minor = 0; in btt_blk_init()
1507 btt->btt_disk->fops = &btt_fops; in btt_blk_init()
1508 btt->btt_disk->private_data = btt; in btt_blk_init()
1510 blk_queue_logical_block_size(btt->btt_disk->queue, btt->sector_size); in btt_blk_init()
1511 blk_queue_max_hw_sectors(btt->btt_disk->queue, UINT_MAX); in btt_blk_init()
1512 blk_queue_flag_set(QUEUE_FLAG_NONROT, btt->btt_disk->queue); in btt_blk_init()
1513 blk_queue_flag_set(QUEUE_FLAG_SYNCHRONOUS, btt->btt_disk->queue); in btt_blk_init()
1516 rc = nd_integrity_init(btt->btt_disk, btt_meta_size(btt)); in btt_blk_init()
1521 set_capacity(btt->btt_disk, btt->nlba * btt->sector_size >> 9); in btt_blk_init()
1522 rc = device_add_disk(&btt->nd_btt->dev, btt->btt_disk, NULL); in btt_blk_init()
1526 btt->nd_btt->size = btt->nlba * (u64)btt->sector_size; in btt_blk_init()
1527 nvdimm_check_and_set_ro(btt->btt_disk); in btt_blk_init()
1532 put_disk(btt->btt_disk); in btt_blk_init()
1538 del_gendisk(btt->btt_disk); in btt_blk_cleanup()
1539 put_disk(btt->btt_disk); in btt_blk_cleanup()
1543 * btt_init - initialize a block translation table for the given device
1547 * @uuid: A uuid for the backing device - this is stored on media
1566 struct device *dev = &nd_btt->dev; in btt_init()
1572 btt->nd_btt = nd_btt; in btt_init()
1573 btt->rawsize = rawsize; in btt_init()
1574 btt->lbasize = lbasize; in btt_init()
1575 btt->sector_size = ((lbasize >= 4096) ? 4096 : 512); in btt_init()
1576 INIT_LIST_HEAD(&btt->arena_list); in btt_init()
1577 mutex_init(&btt->init_lock); in btt_init()
1578 btt->nd_region = nd_region; in btt_init()
1579 nsio = to_nd_namespace_io(&nd_btt->ndns->dev); in btt_init()
1580 btt->phys_bb = &nsio->bb; in btt_init()
1588 if (btt->init_state != INIT_READY && nd_region->ro) { in btt_init()
1589 dev_warn(dev, "%s is read-only, unable to init btt metadata\n", in btt_init()
1590 dev_name(&nd_region->dev)); in btt_init()
1592 } else if (btt->init_state != INIT_READY) { in btt_init()
1593 btt->num_arenas = (rawsize / ARENA_MAX_SIZE) + in btt_init()
1596 btt->num_arenas, rawsize); in btt_init()
1623 * btt_fini - de-initialize a BTT
1626 * De-initialize a Block Translation Table on device removal
1636 debugfs_remove_recursive(btt->debugfs_dir); in btt_fini()
1642 struct nd_btt *nd_btt = to_nd_btt(ndns->claim); in nvdimm_namespace_attach_btt()
1649 if (!nd_btt->uuid || !nd_btt->ndns || !nd_btt->lbasize) { in nvdimm_namespace_attach_btt()
1650 dev_dbg(&nd_btt->dev, "incomplete btt configuration\n"); in nvdimm_namespace_attach_btt()
1651 return -ENODEV; in nvdimm_namespace_attach_btt()
1654 btt_sb = devm_kzalloc(&nd_btt->dev, sizeof(*btt_sb), GFP_KERNEL); in nvdimm_namespace_attach_btt()
1656 return -ENOMEM; in nvdimm_namespace_attach_btt()
1659 rc = devm_namespace_enable(&nd_btt->dev, ndns, size); in nvdimm_namespace_attach_btt()
1671 rawsize = size - nd_btt->initial_offset; in nvdimm_namespace_attach_btt()
1673 dev_dbg(&nd_btt->dev, "%s must be at least %ld bytes\n", in nvdimm_namespace_attach_btt()
1674 dev_name(&ndns->dev), in nvdimm_namespace_attach_btt()
1675 ARENA_MIN_SIZE + nd_btt->initial_offset); in nvdimm_namespace_attach_btt()
1676 return -ENXIO; in nvdimm_namespace_attach_btt()
1678 nd_region = to_nd_region(nd_btt->dev.parent); in nvdimm_namespace_attach_btt()
1679 btt = btt_init(nd_btt, rawsize, nd_btt->lbasize, nd_btt->uuid, in nvdimm_namespace_attach_btt()
1682 return -ENOMEM; in nvdimm_namespace_attach_btt()
1683 nd_btt->btt = btt; in nvdimm_namespace_attach_btt()
1691 struct btt *btt = nd_btt->btt; in nvdimm_namespace_detach_btt()
1694 nd_btt->btt = NULL; in nvdimm_namespace_detach_btt()
1706 rc = -ENXIO; in nd_btt_init()