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lightnvm: generalize rrpc ppa calculations

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In rrpc, some calculations assume a certain configuration (e.g., 1 LUN,
1 sector per page). The reason behind this was that LightNVM used a
simple configuration with QEMU to test core features in the beginning.
This patch relaxes these assumptions and generalizes calculation,
allowing multiple luns to be used.

Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Javier González
2016-03-03 14:47:53 -07:00
committed by Jens Axboe
parent ed2a92a6b4
commit afb18e0ed8
2 changed files with 40 additions and 17 deletions
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9
drivers/lightnvm/rrpc.h
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@@ -156,6 +156,15 @@ struct rrpc_rev_addr {
u64 addr;
};
static inline struct rrpc_block *rrpc_get_rblk(struct rrpc_lun *rlun,
int blk_id)
{
struct rrpc *rrpc = rlun->rrpc;
int lun_blk = blk_id % rrpc->dev->blks_per_lun;
return &rlun->blocks[lun_blk];
}
static inline sector_t rrpc_get_laddr(struct bio *bio)
{
return bio->bi_iter.bi_sector / NR_PHY_IN_LOG;