diff options
Diffstat (limited to 'include/linux/lightnvm.h')
-rw-r--r-- | include/linux/lightnvm.h | 34 |
1 files changed, 16 insertions, 18 deletions
diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h index ef2c7d2e76c4..ba78b8306674 100644 --- a/include/linux/lightnvm.h +++ b/include/linux/lightnvm.h @@ -1,7 +1,9 @@ #ifndef NVM_H #define NVM_H +#include <linux/blkdev.h> #include <linux/types.h> +#include <uapi/linux/lightnvm.h> enum { NVM_IO_OK = 0, @@ -269,24 +271,15 @@ struct nvm_lun { int lun_id; int chnl_id; - /* It is up to the target to mark blocks as closed. If the target does - * not do it, all blocks are marked as open, and nr_open_blocks - * represents the number of blocks in use - */ - unsigned int nr_open_blocks; /* Number of used, writable blocks */ - unsigned int nr_closed_blocks; /* Number of used, read-only blocks */ - unsigned int nr_free_blocks; /* Number of unused blocks */ - unsigned int nr_bad_blocks; /* Number of bad blocks */ - spinlock_t lock; + unsigned int nr_free_blocks; /* Number of unused blocks */ struct nvm_block *blocks; }; enum { NVM_BLK_ST_FREE = 0x1, /* Free block */ - NVM_BLK_ST_OPEN = 0x2, /* Open block - read-write */ - NVM_BLK_ST_CLOSED = 0x4, /* Closed block - read-only */ + NVM_BLK_ST_TGT = 0x2, /* Block in use by target */ NVM_BLK_ST_BAD = 0x8, /* Bad block */ }; @@ -385,6 +378,7 @@ static inline struct ppa_addr dev_to_generic_addr(struct nvm_dev *dev, { struct ppa_addr l; + l.ppa = 0; /* * (r.ppa << X offset) & X len bitmask. X eq. blk, pg, etc. */ @@ -455,6 +449,8 @@ struct nvm_tgt_type { struct list_head list; }; +extern struct nvm_tgt_type *nvm_find_target_type(const char *, int); + extern int nvm_register_tgt_type(struct nvm_tgt_type *); extern void nvm_unregister_tgt_type(struct nvm_tgt_type *); @@ -463,6 +459,9 @@ extern void nvm_dev_dma_free(struct nvm_dev *, void *, dma_addr_t); typedef int (nvmm_register_fn)(struct nvm_dev *); typedef void (nvmm_unregister_fn)(struct nvm_dev *); + +typedef int (nvmm_create_tgt_fn)(struct nvm_dev *, struct nvm_ioctl_create *); +typedef int (nvmm_remove_tgt_fn)(struct nvm_dev *, struct nvm_ioctl_remove *); typedef struct nvm_block *(nvmm_get_blk_fn)(struct nvm_dev *, struct nvm_lun *, unsigned long); typedef void (nvmm_put_blk_fn)(struct nvm_dev *, struct nvm_block *); @@ -488,9 +487,10 @@ struct nvmm_type { nvmm_register_fn *register_mgr; nvmm_unregister_fn *unregister_mgr; + nvmm_create_tgt_fn *create_tgt; + nvmm_remove_tgt_fn *remove_tgt; + /* Block administration callbacks */ - nvmm_get_blk_fn *get_blk_unlocked; - nvmm_put_blk_fn *put_blk_unlocked; nvmm_get_blk_fn *get_blk; nvmm_put_blk_fn *put_blk; nvmm_open_blk_fn *open_blk; @@ -520,10 +520,6 @@ struct nvmm_type { extern int nvm_register_mgr(struct nvmm_type *); extern void nvm_unregister_mgr(struct nvmm_type *); -extern struct nvm_block *nvm_get_blk_unlocked(struct nvm_dev *, - struct nvm_lun *, unsigned long); -extern void nvm_put_blk_unlocked(struct nvm_dev *, struct nvm_block *); - extern struct nvm_block *nvm_get_blk(struct nvm_dev *, struct nvm_lun *, unsigned long); extern void nvm_put_blk(struct nvm_dev *, struct nvm_block *); @@ -532,11 +528,13 @@ extern int nvm_register(struct request_queue *, char *, struct nvm_dev_ops *); extern void nvm_unregister(char *); +void nvm_mark_blk(struct nvm_dev *dev, struct ppa_addr ppa, int type); + extern int nvm_submit_io(struct nvm_dev *, struct nvm_rq *); extern void nvm_generic_to_addr_mode(struct nvm_dev *, struct nvm_rq *); extern void nvm_addr_to_generic_mode(struct nvm_dev *, struct nvm_rq *); extern int nvm_set_rqd_ppalist(struct nvm_dev *, struct nvm_rq *, - struct ppa_addr *, int, int); + const struct ppa_addr *, int, int); extern void nvm_free_rqd_ppalist(struct nvm_dev *, struct nvm_rq *); extern int nvm_erase_ppa(struct nvm_dev *, struct ppa_addr *, int); extern int nvm_erase_blk(struct nvm_dev *, struct nvm_block *); |