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>
diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c
index 07bf989..7622e3d 100644
--- a/drivers/lightnvm/core.c
+++ b/drivers/lightnvm/core.c
@@ -175,6 +175,26 @@ static struct nvm_dev *nvm_find_nvm_dev(const char *name)
return NULL;
}
+static void nvm_tgt_generic_to_addr_mode(struct nvm_tgt_dev *tgt_dev,
+ struct nvm_rq *rqd)
+{
+ struct nvm_dev *dev = tgt_dev->parent;
+ int i;
+
+ if (rqd->nr_ppas > 1) {
+ for (i = 0; i < rqd->nr_ppas; i++) {
+ rqd->ppa_list[i] = dev->mt->trans_ppa(tgt_dev,
+ rqd->ppa_list[i], TRANS_TGT_TO_DEV);
+ rqd->ppa_list[i] = generic_to_dev_addr(dev,
+ rqd->ppa_list[i]);
+ }
+ } else {
+ rqd->ppa_addr = dev->mt->trans_ppa(tgt_dev, rqd->ppa_addr,
+ TRANS_TGT_TO_DEV);
+ rqd->ppa_addr = generic_to_dev_addr(dev, rqd->ppa_addr);
+ }
+}
+
int nvm_set_bb_tbl(struct nvm_dev *dev, struct ppa_addr *ppas, int nr_ppas,
int type)
{
@@ -202,6 +222,34 @@ int nvm_set_bb_tbl(struct nvm_dev *dev, struct ppa_addr *ppas, int nr_ppas,
}
EXPORT_SYMBOL(nvm_set_bb_tbl);
+int nvm_set_tgt_bb_tbl(struct nvm_tgt_dev *tgt_dev, struct ppa_addr *ppas,
+ int nr_ppas, int type)
+{
+ struct nvm_dev *dev = tgt_dev->parent;
+ struct nvm_rq rqd;
+ int ret;
+
+ if (nr_ppas > dev->ops->max_phys_sect) {
+ pr_err("nvm: unable to update all blocks atomically\n");
+ return -EINVAL;
+ }
+
+ memset(&rqd, 0, sizeof(struct nvm_rq));
+
+ nvm_set_rqd_ppalist(dev, &rqd, ppas, nr_ppas, 1);
+ nvm_tgt_generic_to_addr_mode(tgt_dev, &rqd);
+
+ ret = dev->ops->set_bb_tbl(dev, &rqd.ppa_addr, rqd.nr_ppas, type);
+ nvm_free_rqd_ppalist(dev, &rqd);
+ if (ret) {
+ pr_err("nvm: sysblk failed bb mark\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(nvm_set_tgt_bb_tbl);
+
int nvm_max_phys_sects(struct nvm_tgt_dev *tgt_dev)
{
struct nvm_dev *dev = tgt_dev->parent;
@@ -519,6 +567,16 @@ int nvm_get_bb_tbl(struct nvm_dev *dev, struct ppa_addr ppa, u8 *blks)
}
EXPORT_SYMBOL(nvm_get_bb_tbl);
+int nvm_get_tgt_bb_tbl(struct nvm_tgt_dev *tgt_dev, struct ppa_addr ppa,
+ u8 *blks)
+{
+ struct nvm_dev *dev = tgt_dev->parent;
+
+ ppa = dev->mt->trans_ppa(tgt_dev, ppa, TRANS_TGT_TO_DEV);
+ return nvm_get_bb_tbl(dev, ppa, blks);
+}
+EXPORT_SYMBOL(nvm_get_tgt_bb_tbl);
+
static int nvm_init_slc_tbl(struct nvm_dev *dev, struct nvm_id_group *grp)
{
struct nvm_geo *geo = &dev->geo;
