diff options
Diffstat (limited to 'drivers/lightnvm/pblk.h')
| -rw-r--r-- | drivers/lightnvm/pblk.h | 43 |
1 files changed, 38 insertions, 5 deletions
diff --git a/drivers/lightnvm/pblk.h b/drivers/lightnvm/pblk.h index 02bb2e98f8a9..85e38ed62f85 100644 --- a/drivers/lightnvm/pblk.h +++ b/drivers/lightnvm/pblk.h @@ -104,7 +104,6 @@ enum { PBLK_RL_LOW = 4 }; -#define pblk_dma_meta_size (sizeof(struct pblk_sec_meta) * NVM_MAX_VLBA) #define pblk_dma_ppa_size (sizeof(u64) * NVM_MAX_VLBA) /* write buffer completion context */ @@ -132,6 +131,8 @@ struct pblk_pr_ctx { unsigned int bio_init_idx; void *ppa_ptr; dma_addr_t dma_ppa_list; + __le64 lba_list_mem[NVM_MAX_VLBA]; + __le64 lba_list_media[NVM_MAX_VLBA]; }; /* Pad context */ @@ -631,7 +632,9 @@ struct pblk { int state; /* pblk line state */ int min_write_pgs; /* Minimum amount of pages required by controller */ + int min_write_pgs_data; /* Minimum amount of payload pages */ int max_write_pgs; /* Maximum amount of pages supported by controller */ + int oob_meta_size; /* Size of OOB sector metadata */ sector_t capacity; /* Device capacity when bad blocks are subtracted */ @@ -836,7 +839,7 @@ void pblk_dealloc_page(struct pblk *pblk, struct pblk_line *line, int nr_secs); u64 pblk_alloc_page(struct pblk *pblk, struct pblk_line *line, int nr_secs); u64 __pblk_alloc_page(struct pblk *pblk, struct pblk_line *line, int nr_secs); int pblk_calc_secs(struct pblk *pblk, unsigned long secs_avail, - unsigned long secs_to_flush); + unsigned long secs_to_flush, bool skip_meta); void pblk_down_rq(struct pblk *pblk, struct ppa_addr ppa, unsigned long *lun_bitmap); void pblk_down_chunk(struct pblk *pblk, struct ppa_addr ppa); @@ -860,6 +863,8 @@ void pblk_lookup_l2p_rand(struct pblk *pblk, struct ppa_addr *ppas, u64 *lba_list, int nr_secs); void pblk_lookup_l2p_seq(struct pblk *pblk, struct ppa_addr *ppas, sector_t blba, int nr_secs); +void *pblk_get_meta_for_writes(struct pblk *pblk, struct nvm_rq *rqd); +void pblk_get_packed_meta(struct pblk *pblk, struct nvm_rq *rqd); /* * pblk user I/O write path @@ -871,10 +876,10 @@ int pblk_write_gc_to_cache(struct pblk *pblk, struct pblk_gc_rq *gc_rq); /* * pblk map */ -void pblk_map_erase_rq(struct pblk *pblk, struct nvm_rq *rqd, +int pblk_map_erase_rq(struct pblk *pblk, struct nvm_rq *rqd, unsigned int sentry, unsigned long *lun_bitmap, unsigned int valid_secs, struct ppa_addr *erase_ppa); -void pblk_map_rq(struct pblk *pblk, struct nvm_rq *rqd, unsigned int sentry, +int pblk_map_rq(struct pblk *pblk, struct nvm_rq *rqd, unsigned int sentry, unsigned long *lun_bitmap, unsigned int valid_secs, unsigned int off); @@ -905,7 +910,6 @@ int pblk_recov_check_emeta(struct pblk *pblk, struct line_emeta *emeta); #define PBLK_GC_MAX_READERS 8 /* Max number of outstanding GC reader jobs */ #define PBLK_GC_RQ_QD 128 /* Queue depth for inflight GC requests */ #define PBLK_GC_L_QD 4 /* Queue depth for inflight GC lines */ -#define PBLK_GC_RSV_LINE 1 /* Reserved lines for GC */ int pblk_gc_init(struct pblk *pblk); void pblk_gc_exit(struct pblk *pblk, bool graceful); @@ -1370,4 +1374,33 @@ static inline char *pblk_disk_name(struct pblk *pblk) return disk->disk_name; } + +static inline unsigned int pblk_get_min_chks(struct pblk *pblk) +{ + struct pblk_line_meta *lm = &pblk->lm; + /* In a worst-case scenario every line will have OP invalid sectors. + * We will then need a minimum of 1/OP lines to free up a single line + */ + + return DIV_ROUND_UP(100, pblk->op) * lm->blk_per_line; +} + +static inline struct pblk_sec_meta *pblk_get_meta(struct pblk *pblk, + void *meta, int index) +{ + return meta + + max_t(int, sizeof(struct pblk_sec_meta), pblk->oob_meta_size) + * index; +} + +static inline int pblk_dma_meta_size(struct pblk *pblk) +{ + return max_t(int, sizeof(struct pblk_sec_meta), pblk->oob_meta_size) + * NVM_MAX_VLBA; +} + +static inline int pblk_is_oob_meta_supported(struct pblk *pblk) +{ + return pblk->oob_meta_size >= sizeof(struct pblk_sec_meta); +} #endif /* PBLK_H_ */ |