diff options
| author | Javier González <javier@javigon.com> | 2018-10-09 14:11:41 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-10-09 17:25:06 +0300 |
| commit | 2cf99bbd106f89fc72f778e8ad9d5538f1ef939b (patch) | |
| tree | 52206e7eaf4361ae448f3ee3e37038299ad31a14 /include/linux/lightnvm.h | |
| parent | ae14cc044b5988148d819c377fd0cc1c7504bc3c (diff) | |
| download | linux-2cf99bbd106f89fc72f778e8ad9d5538f1ef939b.tar.xz | |
lightnvm: pblk: add helpers for chunk addresses
Implement helpers to go from ppas to a chunk within a line and an
address within a chunk.
These helpers will be used on the patches adding trace support in pblk,
which will be sent in this window.
Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/lightnvm.h')
| -rw-r--r-- | include/linux/lightnvm.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h index 0106984400bc..77743a02ec0d 100644 --- a/include/linux/lightnvm.h +++ b/include/linux/lightnvm.h @@ -487,6 +487,25 @@ static inline struct ppa_addr dev_to_generic_addr(struct nvm_dev *dev, return l; } +static inline u64 dev_to_chunk_addr(struct nvm_dev *dev, void *addrf, + struct ppa_addr p) +{ + struct nvm_geo *geo = &dev->geo; + u64 caddr; + + if (geo->version == NVM_OCSSD_SPEC_12) { + struct nvm_addrf_12 *ppaf = (struct nvm_addrf_12 *)addrf; + + caddr = (u64)p.g.pg << ppaf->pg_offset; + caddr |= (u64)p.g.pl << ppaf->pln_offset; + caddr |= (u64)p.g.sec << ppaf->sec_offset; + } else { + caddr = p.m.sec; + } + + return caddr; +} + typedef blk_qc_t (nvm_tgt_make_rq_fn)(struct request_queue *, struct bio *); typedef sector_t (nvm_tgt_capacity_fn)(void *); typedef void *(nvm_tgt_init_fn)(struct nvm_tgt_dev *, struct gendisk *, |