Lines Matching refs:btt
255 static void btt_debugfs_init(struct btt *btt) in btt_debugfs_init() argument
260 btt->debugfs_dir = debugfs_create_dir(dev_name(&btt->nd_btt->dev), in btt_debugfs_init()
262 if (IS_ERR_OR_NULL(btt->debugfs_dir)) in btt_debugfs_init()
265 list_for_each_entry(arena, &btt->arena_list, list) { in btt_debugfs_init()
266 arena_debugfs_init(arena, btt->debugfs_dir, i); in btt_debugfs_init()
745 static struct arena_info *alloc_arena(struct btt *btt, size_t size, in alloc_arena() argument
755 arena->nd_btt = btt->nd_btt; in alloc_arena()
756 arena->sector_size = btt->sector_size; in alloc_arena()
764 arena->external_lbasize = btt->lbasize; in alloc_arena()
768 arena->version_major = btt->nd_btt->version_major; in alloc_arena()
769 arena->version_minor = btt->nd_btt->version_minor; in alloc_arena()
802 static void free_arenas(struct btt *btt) in free_arenas() argument
806 list_for_each_entry_safe(arena, next, &btt->arena_list, list) { in free_arenas()
846 static int discover_arenas(struct btt *btt) in discover_arenas() argument
851 size_t remaining = btt->rawsize; in discover_arenas()
862 arena = alloc_arena(btt, 0, 0, 0); in discover_arenas()
873 if (!nd_btt_arena_is_valid(btt->nd_btt, super)) { in discover_arenas()
874 if (remaining == btt->rawsize) { in discover_arenas()
875 btt->init_state = INIT_NOTFOUND; in discover_arenas()
908 list_add_tail(&arena->list, &btt->arena_list); in discover_arenas()
918 btt->num_arenas = num_arenas; in discover_arenas()
919 btt->nlba = cur_nlba; in discover_arenas()
920 btt->init_state = INIT_READY; in discover_arenas()
927 free_arenas(btt); in discover_arenas()
933 static int create_arenas(struct btt *btt) in create_arenas() argument
935 size_t remaining = btt->rawsize; in create_arenas()
946 arena = alloc_arena(btt, arena_size, btt->nlba, cur_off); in create_arenas()
948 free_arenas(btt); in create_arenas()
951 btt->nlba += arena->external_nlba; in create_arenas()
957 list_add_tail(&arena->list, &btt->arena_list); in create_arenas()
1025 static int btt_meta_init(struct btt *btt) in btt_meta_init() argument
1030 mutex_lock(&btt->init_lock); in btt_meta_init()
1031 list_for_each_entry(arena, &btt->arena_list, list) { in btt_meta_init()
1049 btt->init_state = INIT_READY; in btt_meta_init()
1052 mutex_unlock(&btt->init_lock); in btt_meta_init()
1056 static u32 btt_meta_size(struct btt *btt) in btt_meta_size() argument
1058 return btt->lbasize - btt->sector_size; in btt_meta_size()
1068 static int lba_to_arena(struct btt *btt, sector_t sector, __u32 *premap, in lba_to_arena() argument
1072 __u64 lba = div_u64(sector << SECTOR_SHIFT, btt->sector_size); in lba_to_arena()
1074 list_for_each_entry(arena_list, &btt->arena_list, list) { in lba_to_arena()
1141 static int btt_rw_integrity(struct btt *btt, struct bio_integrity_payload *bip, in btt_rw_integrity() argument
1144 unsigned int len = btt_meta_size(btt); in btt_rw_integrity()
1151 meta_nsoff = to_namespace_offset(arena, postmap) + btt->sector_size; in btt_rw_integrity()
1188 static int btt_rw_integrity(struct btt *btt, struct bio_integrity_payload *bip, in btt_rw_integrity() argument
1195 static int btt_read_pg(struct btt *btt, struct bio_integrity_payload *bip, in btt_read_pg() argument
1207 lane = nd_region_acquire_lane(btt->nd_region); in btt_read_pg()
1209 ret = lba_to_arena(btt, sector, &premap, &arena); in btt_read_pg()
1213 cur_len = min(btt->sector_size, len); in btt_read_pg()
1271 ret = btt_rw_integrity(btt, bip, arena, postmap, READ); in btt_read_pg()
1277 nd_region_release_lane(btt->nd_region, lane); in btt_read_pg()
1281 sector += btt->sector_size >> SECTOR_SHIFT; in btt_read_pg()
1289 nd_region_release_lane(btt->nd_region, lane); in btt_read_pg()
1298 static bool btt_is_badblock(struct btt *btt, struct arena_info *arena, in btt_is_badblock() argument
1305 return is_bad_pmem(btt->phys_bb, phys_sector, arena->internal_lbasize); in btt_is_badblock()
1308 static int btt_write_pg(struct btt *btt, struct bio_integrity_payload *bip, in btt_write_pg() argument
1323 lane = nd_region_acquire_lane(btt->nd_region); in btt_write_pg()
1325 ret = lba_to_arena(btt, sector, &premap, &arena); in btt_write_pg()
1328 cur_len = min(btt->sector_size, len); in btt_write_pg()
1335 if (btt_is_badblock(btt, arena, arena->freelist[lane].block)) in btt_write_pg()
1340 nd_region_release_lane(btt->nd_region, lane); in btt_write_pg()
1368 ret = btt_rw_integrity(btt, bip, arena, new_postmap, in btt_write_pg()
1401 nd_region_release_lane(btt->nd_region, lane); in btt_write_pg()
1411 sector += btt->sector_size >> SECTOR_SHIFT; in btt_write_pg()
1419 nd_region_release_lane(btt->nd_region, lane); in btt_write_pg()
1423 static int btt_do_bvec(struct btt *btt, struct bio_integrity_payload *bip, in btt_do_bvec() argument
1430 ret = btt_read_pg(btt, bip, page, off, sector, len); in btt_do_bvec()
1434 ret = btt_write_pg(btt, bip, sector, page, off, len); in btt_do_bvec()
1443 struct btt *btt = bio->bi_bdev->bd_disk->private_data; in btt_submit_bio() local
1459 if (len > PAGE_SIZE || len < btt->sector_size || in btt_submit_bio()
1460 len % btt->sector_size) { in btt_submit_bio()
1461 dev_err_ratelimited(&btt->nd_btt->dev, in btt_submit_bio()
1467 err = btt_do_bvec(btt, bip, bvec.bv_page, len, bvec.bv_offset, in btt_submit_bio()
1470 dev_err(&btt->nd_btt->dev, in btt_submit_bio()
1500 static int btt_blk_init(struct btt *btt) in btt_blk_init() argument
1502 struct nd_btt *nd_btt = btt->nd_btt; in btt_blk_init()
1506 btt->btt_disk = blk_alloc_disk(NUMA_NO_NODE); in btt_blk_init()
1507 if (!btt->btt_disk) in btt_blk_init()
1510 nvdimm_namespace_disk_name(ndns, btt->btt_disk->disk_name); in btt_blk_init()
1511 btt->btt_disk->first_minor = 0; in btt_blk_init()
1512 btt->btt_disk->fops = &btt_fops; in btt_blk_init()
1513 btt->btt_disk->private_data = btt; in btt_blk_init()
1515 blk_queue_logical_block_size(btt->btt_disk->queue, btt->sector_size); in btt_blk_init()
1516 blk_queue_max_hw_sectors(btt->btt_disk->queue, UINT_MAX); in btt_blk_init()
1517 blk_queue_flag_set(QUEUE_FLAG_NONROT, btt->btt_disk->queue); in btt_blk_init()
1518 blk_queue_flag_set(QUEUE_FLAG_SYNCHRONOUS, btt->btt_disk->queue); in btt_blk_init()
1520 if (btt_meta_size(btt)) { in btt_blk_init()
1521 rc = nd_integrity_init(btt->btt_disk, btt_meta_size(btt)); in btt_blk_init()
1526 set_capacity(btt->btt_disk, btt->nlba * btt->sector_size >> 9); in btt_blk_init()
1527 rc = device_add_disk(&btt->nd_btt->dev, btt->btt_disk, NULL); in btt_blk_init()
1531 btt->nd_btt->size = btt->nlba * (u64)btt->sector_size; in btt_blk_init()
1532 nvdimm_check_and_set_ro(btt->btt_disk); in btt_blk_init()
1537 put_disk(btt->btt_disk); in btt_blk_init()
1541 static void btt_blk_cleanup(struct btt *btt) in btt_blk_cleanup() argument
1543 del_gendisk(btt->btt_disk); in btt_blk_cleanup()
1544 put_disk(btt->btt_disk); in btt_blk_cleanup()
1564 static struct btt *btt_init(struct nd_btt *nd_btt, unsigned long long rawsize, in btt_init()
1569 struct btt *btt; in btt_init() local
1573 btt = devm_kzalloc(dev, sizeof(struct btt), GFP_KERNEL); in btt_init()
1574 if (!btt) in btt_init()
1577 btt->nd_btt = nd_btt; in btt_init()
1578 btt->rawsize = rawsize; in btt_init()
1579 btt->lbasize = lbasize; in btt_init()
1580 btt->sector_size = ((lbasize >= 4096) ? 4096 : 512); in btt_init()
1581 INIT_LIST_HEAD(&btt->arena_list); in btt_init()
1582 mutex_init(&btt->init_lock); in btt_init()
1583 btt->nd_region = nd_region; in btt_init()
1585 btt->phys_bb = &nsio->bb; in btt_init()
1587 ret = discover_arenas(btt); in btt_init()
1593 if (btt->init_state != INIT_READY && nd_region->ro) { in btt_init()
1597 } else if (btt->init_state != INIT_READY) { in btt_init()
1598 btt->num_arenas = (rawsize / ARENA_MAX_SIZE) + in btt_init()
1601 btt->num_arenas, rawsize); in btt_init()
1603 ret = create_arenas(btt); in btt_init()
1609 ret = btt_meta_init(btt); in btt_init()
1616 ret = btt_blk_init(btt); in btt_init()
1622 btt_debugfs_init(btt); in btt_init()
1624 return btt; in btt_init()
1636 static void btt_fini(struct btt *btt) in btt_fini() argument
1638 if (btt) { in btt_fini()
1639 btt_blk_cleanup(btt); in btt_fini()
1640 free_arenas(btt); in btt_fini()
1641 debugfs_remove_recursive(btt->debugfs_dir); in btt_fini()
1650 struct btt *btt; in nvdimm_namespace_attach_btt() local
1684 btt = btt_init(nd_btt, rawsize, nd_btt->lbasize, nd_btt->uuid, in nvdimm_namespace_attach_btt()
1686 if (!btt) in nvdimm_namespace_attach_btt()
1688 nd_btt->btt = btt; in nvdimm_namespace_attach_btt()
1696 struct btt *btt = nd_btt->btt; in nvdimm_namespace_detach_btt() local
1698 btt_fini(btt); in nvdimm_namespace_detach_btt()
1699 nd_btt->btt = NULL; in nvdimm_namespace_detach_btt()