From 333ba053d145d6f9152f6b0311a345b876f0fed1 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Javier=20Gonz=C3=A1lez?= Date: Mon, 28 Nov 2016 22:39:14 +0100 Subject: lightnvm: transform target get/set bad block MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe --- drivers/lightnvm/gennvm.c | 19 +++++++++++++------ 1 file changed, 13 insertions(+), 6 deletions(-) (limited to 'drivers/lightnvm/gennvm.c') diff --git a/drivers/lightnvm/gennvm.c b/drivers/lightnvm/gennvm.c index befa8281ab3f..ca7880082d80 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, }; -- cgit v1.2.3