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lightnvm: pblk: implement get log report chunk

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In preparation of pblk supporting 2.0, implement the get log report
chunk in pblk. Also, define the chunk states as given in the 2.0 spec.

Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Javier González
2018-03-30 00:05:20 +02:00
committed by Jens Axboe
parent bb845ae45c
commit 32ef9412c1
4 changed files with 298 additions and 82 deletions
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7
drivers/lightnvm/pblk.h
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@@ -297,6 +297,7 @@ enum {
PBLK_LINETYPE_DATA = 2,
/* Line state */
PBLK_LINESTATE_NEW = 9,
PBLK_LINESTATE_FREE = 10,
PBLK_LINESTATE_OPEN = 11,
PBLK_LINESTATE_CLOSED = 12,
@@ -426,6 +427,8 @@ struct pblk_line {
unsigned long *lun_bitmap; /* Bitmap for LUNs mapped in line */
struct nvm_chk_meta *chks; /* Chunks forming line */
struct pblk_smeta *smeta; /* Start metadata */
struct pblk_emeta *emeta; /* End medatada */
@@ -729,6 +732,10 @@ void pblk_set_sec_per_write(struct pblk *pblk, int sec_per_write);
int pblk_setup_w_rec_rq(struct pblk *pblk, struct nvm_rq *rqd,
struct pblk_c_ctx *c_ctx);
void pblk_discard(struct pblk *pblk, struct bio *bio);
struct nvm_chk_meta *pblk_chunk_get_info(struct pblk *pblk);
struct nvm_chk_meta *pblk_chunk_get_off(struct pblk *pblk,
struct nvm_chk_meta *lp,
struct ppa_addr ppa);
void pblk_log_write_err(struct pblk *pblk, struct nvm_rq *rqd);
void pblk_log_read_err(struct pblk *pblk, struct nvm_rq *rqd);
int pblk_submit_io(struct pblk *pblk, struct nvm_rq *rqd);