From 2cf99bbd106f89fc72f778e8ad9d5538f1ef939b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Javier=20Gonz=C3=A1lez?= Date: Tue, 9 Oct 2018 13:11:41 +0200 Subject: lightnvm: pblk: add helpers for chunk addresses MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe --- drivers/lightnvm/pblk.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'drivers/lightnvm') 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) { -- cgit v1.2.3