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| author | Javier González <javier@cnexlabs.com> | 2016-11-28 22:39:14 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-11-29 12:12:51 -0700 |
| commit | 333ba053d145d6f9152f6b0311a345b876f0fed1 (patch) | |
| tree | 5fe4cb83b1422aaa40a7ce5ff6a824fd3d323046 /drivers/lightnvm/gennvm.c | |
| parent | da2d7cb828ce2714c603827ac5a6e1c98a02e861 (diff) | |
| download | op-kernel-dev-333ba053d145d6f9152f6b0311a345b876f0fed1.zip op-kernel-dev-333ba053d145d6f9152f6b0311a345b876f0fed1.tar.gz | |
lightnvm: transform target get/set bad block
Since targets are given a virtual target device, it is necessary to
translate all communication between targets and the backend device.
Implement the translation layer for get/set bad block table.
Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/lightnvm/gennvm.c')
| -rw-r--r-- | drivers/lightnvm/gennvm.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/drivers/lightnvm/gennvm.c b/drivers/lightnvm/gennvm.c index befa828..ca78800 100644 --- a/drivers/lightnvm/gennvm.c +++ b/drivers/lightnvm/gennvm.c @@ -482,12 +482,6 @@ static void gen_unregister(struct nvm_dev *dev) module_put(THIS_MODULE); } -enum { - TRANS_TGT_TO_DEV = 0x0, - TRANS_DEV_TO_TGT = 0x1, -}; - - static int gen_map_to_dev(struct nvm_tgt_dev *tgt_dev, struct ppa_addr *p) { struct gen_dev_map *dev_map = tgt_dev->map; @@ -584,6 +578,18 @@ static int gen_erase_blk(struct nvm_tgt_dev *tgt_dev, struct ppa_addr *p, return nvm_erase_ppa(tgt_dev->parent, p, 1, flags); } +static struct ppa_addr gen_trans_ppa(struct nvm_tgt_dev *tgt_dev, + struct ppa_addr p, int direction) +{ + gen_trans_fn *f; + struct ppa_addr ppa = p; + + f = (direction == TRANS_TGT_TO_DEV) ? gen_map_to_dev : gen_map_to_tgt; + f(tgt_dev, &ppa); + + return ppa; +} + static void gen_part_to_tgt(struct nvm_dev *dev, sector_t *entries, int len) { @@ -631,6 +637,7 @@ static struct nvmm_type gen = { .get_area = gen_get_area, .put_area = gen_put_area, + .trans_ppa = gen_trans_ppa, .part_to_tgt = gen_part_to_tgt, }; |
