diff options
| author | Javier González <javier@javigon.com> | 2018-10-09 13:11:41 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-10-09 08:25:06 -0600 |
| commit | 2cf99bbd106f89fc72f778e8ad9d5538f1ef939b (patch) | |
| tree | 52206e7eaf4361ae448f3ee3e37038299ad31a14 /drivers/lightnvm | |
| parent | ae14cc044b5988148d819c377fd0cc1c7504bc3c (diff) | |
| download | blackbird-obmc-linux-2cf99bbd106f89fc72f778e8ad9d5538f1ef939b.tar.gz blackbird-obmc-linux-2cf99bbd106f89fc72f778e8ad9d5538f1ef939b.zip | |
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 'drivers/lightnvm')
| -rw-r--r-- | drivers/lightnvm/pblk.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/lightnvm/pblk.h b/drivers/lightnvm/pblk.h index be67bbfa3d0a..f95fe75fef6e 100644 --- a/drivers/lightnvm/pblk.h +++ b/drivers/lightnvm/pblk.h @@ -1034,6 +1034,25 @@ static inline struct ppa_addr addr_to_gen_ppa(struct pblk *pblk, u64 paddr, return ppa; } +static inline struct nvm_chk_meta *pblk_dev_ppa_to_chunk(struct pblk *pblk, + struct ppa_addr p) +{ + struct nvm_tgt_dev *dev = pblk->dev; + struct nvm_geo *geo = &dev->geo; + struct pblk_line *line = &pblk->lines[pblk_ppa_to_line(p)]; + int pos = pblk_ppa_to_pos(geo, p); + + return &line->chks[pos]; +} + +static inline u64 pblk_dev_ppa_to_chunk_addr(struct pblk *pblk, + struct ppa_addr p) +{ + struct nvm_tgt_dev *dev = pblk->dev; + + return dev_to_chunk_addr(dev->parent, &pblk->addrf, p); +} + static inline u64 pblk_dev_ppa_to_line_addr(struct pblk *pblk, struct ppa_addr p) { |
