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| author | Javier González <javier@cnexlabs.com> | 2016-11-28 22:39:14 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-11-29 12:12:51 -0700 |
| commit | 333ba053d145d6f9152f6b0311a345b876f0fed1 (patch) | |
| tree | 5fe4cb83b1422aaa40a7ce5ff6a824fd3d323046 /include/linux/lightnvm.h | |
| parent | da2d7cb828ce2714c603827ac5a6e1c98a02e861 (diff) | |
| download | lwn-333ba053d145d6f9152f6b0311a345b876f0fed1.tar.gz lwn-333ba053d145d6f9152f6b0311a345b876f0fed1.zip | |
lightnvm: transform target get/set bad block
Since targets are given a virtual target device, it is necessary to
translate all communication between targets and the backend device.
Implement the translation layer for get/set bad block table.
Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux/lightnvm.h')
| -rw-r--r-- | include/linux/lightnvm.h | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h index e76f9c4aa49b..7c273bbc5351 100644 --- a/include/linux/lightnvm.h +++ b/include/linux/lightnvm.h @@ -496,8 +496,15 @@ typedef int (nvmm_submit_io_fn)(struct nvm_tgt_dev *, struct nvm_rq *); typedef int (nvmm_erase_blk_fn)(struct nvm_tgt_dev *, struct ppa_addr *, int); typedef int (nvmm_get_area_fn)(struct nvm_dev *, sector_t *, sector_t); typedef void (nvmm_put_area_fn)(struct nvm_dev *, sector_t); +typedef struct ppa_addr (nvmm_trans_ppa_fn)(struct nvm_tgt_dev *, + struct ppa_addr, int); typedef void (nvmm_part_to_tgt_fn)(struct nvm_dev *, sector_t*, int); +enum { + TRANS_TGT_TO_DEV = 0x0, + TRANS_DEV_TO_TGT = 0x1, +}; + struct nvmm_type { const char *name; unsigned int version[3]; @@ -514,6 +521,7 @@ struct nvmm_type { nvmm_get_area_fn *get_area; nvmm_put_area_fn *put_area; + nvmm_trans_ppa_fn *trans_ppa; nvmm_part_to_tgt_fn *part_to_tgt; struct list_head list; @@ -526,9 +534,9 @@ extern struct nvm_dev *nvm_alloc_dev(int); extern int nvm_register(struct nvm_dev *); extern void nvm_unregister(struct nvm_dev *); -extern int nvm_set_bb_tbl(struct nvm_dev *dev, struct ppa_addr *ppas, - int nr_ppas, int type); - +extern int nvm_set_bb_tbl(struct nvm_dev *, struct ppa_addr *, int, int); +extern int nvm_set_tgt_bb_tbl(struct nvm_tgt_dev *, struct ppa_addr *, + int, int); extern int nvm_max_phys_sects(struct nvm_tgt_dev *); extern int nvm_submit_io(struct nvm_tgt_dev *, struct nvm_rq *); extern void nvm_generic_to_addr_mode(struct nvm_dev *, struct nvm_rq *); @@ -549,6 +557,7 @@ extern int nvm_submit_ppa_list(struct nvm_dev *, struct ppa_addr *, int, int, int, void *, int); extern int nvm_bb_tbl_fold(struct nvm_dev *, u8 *, int); extern int nvm_get_bb_tbl(struct nvm_dev *, struct ppa_addr, u8 *); +extern int nvm_get_tgt_bb_tbl(struct nvm_tgt_dev *, struct ppa_addr, u8 *); /* sysblk.c */ #define NVM_SYSBLK_MAGIC 0x4E564D53 /* "NVMS" */ |