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path: root/drivers/lightnvm/pblk.h
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Diffstat (limited to 'drivers/lightnvm/pblk.h')
-rw-r--r--drivers/lightnvm/pblk.h163
1 files changed, 68 insertions, 95 deletions
diff --git a/drivers/lightnvm/pblk.h b/drivers/lightnvm/pblk.h
index 59a64d461a5d..8c357fb6538e 100644
--- a/drivers/lightnvm/pblk.h
+++ b/drivers/lightnvm/pblk.h
@@ -51,17 +51,16 @@
#define NR_PHY_IN_LOG (PBLK_EXPOSED_PAGE_SIZE / PBLK_SECTOR)
-#define pblk_for_each_lun(pblk, rlun, i) \
- for ((i) = 0, rlun = &(pblk)->luns[0]; \
- (i) < (pblk)->nr_luns; (i)++, rlun = &(pblk)->luns[(i)])
-
/* Static pool sizes */
#define PBLK_GEN_WS_POOL_SIZE (2)
+#define PBLK_DEFAULT_OP (11)
+
enum {
PBLK_READ = READ,
PBLK_WRITE = WRITE,/* Write from write buffer */
PBLK_WRITE_INT, /* Internal write - no write buffer */
+ PBLK_READ_RECOV, /* Recovery read - errors allowed */
PBLK_ERASE,
};
@@ -114,6 +113,7 @@ struct pblk_c_ctx {
/* read context */
struct pblk_g_ctx {
void *private;
+ unsigned long start_time;
u64 lba;
};
@@ -170,7 +170,7 @@ struct pblk_rb {
* the last submitted entry that has
* been successfully persisted to media
*/
- unsigned int sync_point; /* Sync point - last entry that must be
+ unsigned int flush_point; /* Sync point - last entry that must be
* flushed to the media. Used with
* REQ_FLUSH and REQ_FUA
*/
@@ -193,7 +193,7 @@ struct pblk_rb {
spinlock_t s_lock; /* Sync lock */
#ifdef CONFIG_NVM_DEBUG
- atomic_t inflight_sync_point; /* Not served REQ_FLUSH | REQ_FUA */
+ atomic_t inflight_flush_point; /* Not served REQ_FLUSH | REQ_FUA */
#endif
};
@@ -256,9 +256,6 @@ struct pblk_rl {
unsigned int high; /* Upper threshold for rate limiter (free run -
* user I/O rate limiter
*/
- unsigned int low; /* Lower threshold for rate limiter (user I/O
- * rate limiter - stall)
- */
unsigned int high_pw; /* High rounded up as a power of 2 */
#define PBLK_USER_HIGH_THRS 8 /* Begin write limit at 12% available blks */
@@ -292,7 +289,9 @@ struct pblk_rl {
unsigned long long nr_secs;
unsigned long total_blocks;
- atomic_t free_blocks;
+
+ atomic_t free_blocks; /* Total number of free blocks (+ OP) */
+ atomic_t free_user_blocks; /* Number of user free blocks (no OP) */
};
#define PBLK_LINE_EMPTY (~0U)
@@ -583,7 +582,9 @@ struct pblk {
*/
sector_t capacity; /* Device capacity when bad blocks are subtracted */
- int over_pct; /* Percentage of device used for over-provisioning */
+
+ int op; /* Percentage of device used for over-provisioning */
+ int op_blks; /* Number of blocks used for over-provisioning */
/* pblk provisioning values. Used by rate limiter */
struct pblk_rl rl;
@@ -691,7 +692,7 @@ unsigned int pblk_rb_sync_advance(struct pblk_rb *rb, unsigned int nr_entries);
struct pblk_rb_entry *pblk_rb_sync_scan_entry(struct pblk_rb *rb,
struct ppa_addr *ppa);
void pblk_rb_sync_end(struct pblk_rb *rb, unsigned long *flags);
-unsigned int pblk_rb_sync_point_count(struct pblk_rb *rb);
+unsigned int pblk_rb_flush_point_count(struct pblk_rb *rb);
unsigned int pblk_rb_read_count(struct pblk_rb *rb);
unsigned int pblk_rb_sync_count(struct pblk_rb *rb);
@@ -812,7 +813,7 @@ int pblk_submit_read_gc(struct pblk *pblk, struct pblk_gc_rq *gc_rq);
void pblk_submit_rec(struct work_struct *work);
struct pblk_line *pblk_recov_l2p(struct pblk *pblk);
int pblk_recov_pad(struct pblk *pblk);
-__le64 *pblk_recov_get_lba_list(struct pblk *pblk, struct line_emeta *emeta);
+int pblk_recov_check_emeta(struct pblk *pblk, struct line_emeta *emeta);
int pblk_recov_setup_rq(struct pblk *pblk, struct pblk_c_ctx *c_ctx,
struct pblk_rec_ctx *recovery, u64 *comp_bits,
unsigned int comp);
@@ -843,6 +844,7 @@ void pblk_rl_free(struct pblk_rl *rl);
void pblk_rl_update_rates(struct pblk_rl *rl);
int pblk_rl_high_thrs(struct pblk_rl *rl);
unsigned long pblk_rl_nr_free_blks(struct pblk_rl *rl);
+unsigned long pblk_rl_nr_user_free_blks(struct pblk_rl *rl);
int pblk_rl_user_may_insert(struct pblk_rl *rl, int nr_entries);
void pblk_rl_inserted(struct pblk_rl *rl, int nr_entries);
void pblk_rl_user_in(struct pblk_rl *rl, int nr_entries);
@@ -851,7 +853,8 @@ void pblk_rl_gc_in(struct pblk_rl *rl, int nr_entries);
void pblk_rl_out(struct pblk_rl *rl, int nr_user, int nr_gc);
int pblk_rl_max_io(struct pblk_rl *rl);
void pblk_rl_free_lines_inc(struct pblk_rl *rl, struct pblk_line *line);
-void pblk_rl_free_lines_dec(struct pblk_rl *rl, struct pblk_line *line);
+void pblk_rl_free_lines_dec(struct pblk_rl *rl, struct pblk_line *line,
+ bool used);
int pblk_rl_is_limit(struct pblk_rl *rl);
/*
@@ -907,28 +910,47 @@ static inline int pblk_pad_distance(struct pblk *pblk)
struct nvm_tgt_dev *dev = pblk->dev;
struct nvm_geo *geo = &dev->geo;
- return NVM_MEM_PAGE_WRITE * geo->nr_luns * geo->sec_per_pl;
+ return NVM_MEM_PAGE_WRITE * geo->all_luns * geo->sec_per_pl;
}
-static inline int pblk_dev_ppa_to_line(struct ppa_addr p)
+static inline int pblk_ppa_to_line(struct ppa_addr p)
{
return p.g.blk;
}
-static inline int pblk_tgt_ppa_to_line(struct ppa_addr p)
+static inline int pblk_ppa_to_pos(struct nvm_geo *geo, struct ppa_addr p)
{
- return p.g.blk;
+ return p.g.lun * geo->nr_chnls + p.g.ch;
}
-static inline int pblk_ppa_to_pos(struct nvm_geo *geo, struct ppa_addr p)
+static inline struct ppa_addr addr_to_gen_ppa(struct pblk *pblk, u64 paddr,
+ u64 line_id)
{
- return p.g.lun * geo->nr_chnls + p.g.ch;
+ struct ppa_addr ppa;
+
+ ppa.ppa = 0;
+ ppa.g.blk = line_id;
+ ppa.g.pg = (paddr & pblk->ppaf.pg_mask) >> pblk->ppaf.pg_offset;
+ ppa.g.lun = (paddr & pblk->ppaf.lun_mask) >> pblk->ppaf.lun_offset;
+ ppa.g.ch = (paddr & pblk->ppaf.ch_mask) >> pblk->ppaf.ch_offset;
+ ppa.g.pl = (paddr & pblk->ppaf.pln_mask) >> pblk->ppaf.pln_offset;
+ ppa.g.sec = (paddr & pblk->ppaf.sec_mask) >> pblk->ppaf.sec_offset;
+
+ return ppa;
}
-/* A block within a line corresponds to the lun */
-static inline int pblk_dev_ppa_to_pos(struct nvm_geo *geo, struct ppa_addr p)
+static inline u64 pblk_dev_ppa_to_line_addr(struct pblk *pblk,
+ struct ppa_addr p)
{
- return p.g.lun * geo->nr_chnls + p.g.ch;
+ u64 paddr;
+
+ paddr = (u64)p.g.pg << pblk->ppaf.pg_offset;
+ paddr |= (u64)p.g.lun << pblk->ppaf.lun_offset;
+ paddr |= (u64)p.g.ch << pblk->ppaf.ch_offset;
+ paddr |= (u64)p.g.pl << pblk->ppaf.pln_offset;
+ paddr |= (u64)p.g.sec << pblk->ppaf.sec_offset;
+
+ return paddr;
}
static inline struct ppa_addr pblk_ppa32_to_ppa64(struct pblk *pblk, u32 ppa32)
@@ -960,24 +982,6 @@ static inline struct ppa_addr pblk_ppa32_to_ppa64(struct pblk *pblk, u32 ppa32)
return ppa64;
}
-static inline struct ppa_addr pblk_trans_map_get(struct pblk *pblk,
- sector_t lba)
-{
- struct ppa_addr ppa;
-
- if (pblk->ppaf_bitsize < 32) {
- u32 *map = (u32 *)pblk->trans_map;
-
- ppa = pblk_ppa32_to_ppa64(pblk, map[lba]);
- } else {
- struct ppa_addr *map = (struct ppa_addr *)pblk->trans_map;
-
- ppa = map[lba];
- }
-
- return ppa;
-}
-
static inline u32 pblk_ppa64_to_ppa32(struct pblk *pblk, struct ppa_addr ppa64)
{
u32 ppa32 = 0;
@@ -999,33 +1003,36 @@ static inline u32 pblk_ppa64_to_ppa32(struct pblk *pblk, struct ppa_addr ppa64)
return ppa32;
}
-static inline void pblk_trans_map_set(struct pblk *pblk, sector_t lba,
- struct ppa_addr ppa)
+static inline struct ppa_addr pblk_trans_map_get(struct pblk *pblk,
+ sector_t lba)
{
+ struct ppa_addr ppa;
+
if (pblk->ppaf_bitsize < 32) {
u32 *map = (u32 *)pblk->trans_map;
- map[lba] = pblk_ppa64_to_ppa32(pblk, ppa);
+ ppa = pblk_ppa32_to_ppa64(pblk, map[lba]);
} else {
- u64 *map = (u64 *)pblk->trans_map;
+ struct ppa_addr *map = (struct ppa_addr *)pblk->trans_map;
- map[lba] = ppa.ppa;
+ ppa = map[lba];
}
+
+ return ppa;
}
-static inline u64 pblk_dev_ppa_to_line_addr(struct pblk *pblk,
- struct ppa_addr p)
+static inline void pblk_trans_map_set(struct pblk *pblk, sector_t lba,
+ struct ppa_addr ppa)
{
- u64 paddr;
+ if (pblk->ppaf_bitsize < 32) {
+ u32 *map = (u32 *)pblk->trans_map;
- paddr = 0;
- paddr |= (u64)p.g.pg << pblk->ppaf.pg_offset;
- paddr |= (u64)p.g.lun << pblk->ppaf.lun_offset;
- paddr |= (u64)p.g.ch << pblk->ppaf.ch_offset;
- paddr |= (u64)p.g.pl << pblk->ppaf.pln_offset;
- paddr |= (u64)p.g.sec << pblk->ppaf.sec_offset;
+ map[lba] = pblk_ppa64_to_ppa32(pblk, ppa);
+ } else {
+ u64 *map = (u64 *)pblk->trans_map;
- return paddr;
+ map[lba] = ppa.ppa;
+ }
}
static inline int pblk_ppa_empty(struct ppa_addr ppa_addr)
@@ -1040,10 +1047,7 @@ static inline void pblk_ppa_set_empty(struct ppa_addr *ppa_addr)
static inline bool pblk_ppa_comp(struct ppa_addr lppa, struct ppa_addr rppa)
{
- if (lppa.ppa == rppa.ppa)
- return true;
-
- return false;
+ return (lppa.ppa == rppa.ppa);
}
static inline int pblk_addr_in_cache(struct ppa_addr ppa)
@@ -1066,32 +1070,6 @@ static inline struct ppa_addr pblk_cacheline_to_addr(int addr)
return p;
}
-static inline struct ppa_addr addr_to_gen_ppa(struct pblk *pblk, u64 paddr,
- u64 line_id)
-{
- struct ppa_addr ppa;
-
- ppa.ppa = 0;
- ppa.g.blk = line_id;
- ppa.g.pg = (paddr & pblk->ppaf.pg_mask) >> pblk->ppaf.pg_offset;
- ppa.g.lun = (paddr & pblk->ppaf.lun_mask) >> pblk->ppaf.lun_offset;
- ppa.g.ch = (paddr & pblk->ppaf.ch_mask) >> pblk->ppaf.ch_offset;
- ppa.g.pl = (paddr & pblk->ppaf.pln_mask) >> pblk->ppaf.pln_offset;
- ppa.g.sec = (paddr & pblk->ppaf.sec_mask) >> pblk->ppaf.sec_offset;
-
- return ppa;
-}
-
-static inline struct ppa_addr addr_to_pblk_ppa(struct pblk *pblk, u64 paddr,
- u64 line_id)
-{
- struct ppa_addr ppa;
-
- ppa = addr_to_gen_ppa(pblk, paddr, line_id);
-
- return ppa;
-}
-
static inline u32 pblk_calc_meta_header_crc(struct pblk *pblk,
struct line_header *header)
{
@@ -1212,10 +1190,10 @@ static inline int pblk_boundary_ppa_checks(struct nvm_tgt_dev *tgt_dev,
if (!ppa->c.is_cached &&
ppa->g.ch < geo->nr_chnls &&
- ppa->g.lun < geo->luns_per_chnl &&
+ ppa->g.lun < geo->nr_luns &&
ppa->g.pl < geo->nr_planes &&
- ppa->g.blk < geo->blks_per_lun &&
- ppa->g.pg < geo->pgs_per_blk &&
+ ppa->g.blk < geo->nr_chks &&
+ ppa->g.pg < geo->ws_per_chk &&
ppa->g.sec < geo->sec_per_pg)
continue;
@@ -1245,7 +1223,7 @@ static inline int pblk_check_io(struct pblk *pblk, struct nvm_rq *rqd)
for (i = 0; i < rqd->nr_ppas; i++) {
ppa = ppa_list[i];
- line = &pblk->lines[pblk_dev_ppa_to_line(ppa)];
+ line = &pblk->lines[pblk_ppa_to_line(ppa)];
spin_lock(&line->lock);
if (line->state != PBLK_LINESTATE_OPEN) {
@@ -1288,11 +1266,6 @@ static inline unsigned int pblk_get_secs(struct bio *bio)
return bio->bi_iter.bi_size / PBLK_EXPOSED_PAGE_SIZE;
}
-static inline sector_t pblk_get_sector(sector_t lba)
-{
- return lba * NR_PHY_IN_LOG;
-}
-
static inline void pblk_setup_uuid(struct pblk *pblk)
{
uuid_le uuid;
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-11 12:11:49 +0300