lightnvm: export set bad block table

Bad blocks should be managed by block owners. This would be either
targets for data blocks or sysblk for system blocks.

In order to support this, export two functions: One to mark a block as
an specific type (e.g., bad block) and another to update the bad block
table on the device.

Move bad block management to rrpc.

Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>

1 files changed, 27 insertions, 0 deletions

diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c
index 8664fe09cc82..6527cf6862fa 100644
--- a/drivers/lightnvm/core.c
+++ b/drivers/lightnvm/core.c
@@ -196,6 +196,33 @@ void nvm_mark_blk(struct nvm_dev *dev, struct ppa_addr ppa, int type)
 }
 EXPORT_SYMBOL(nvm_mark_blk);
 
+int nvm_set_bb_tbl(struct nvm_dev *dev, struct ppa_addr *ppas, int nr_ppas,
+                                                                int type)
+{
+        struct nvm_rq rqd;
+        int ret;
+
+        if (nr_ppas > dev->ops->max_phys_sect) {
+                pr_err("nvm: unable to update all sysblocks atomically\n");
+                return -EINVAL;
+        }
+
+        memset(&rqd, 0, sizeof(struct nvm_rq));
+
+        nvm_set_rqd_ppalist(dev, &rqd, ppas, nr_ppas, 1);
+        nvm_generic_to_addr_mode(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_bb_tbl);
+
 int nvm_submit_io(struct nvm_dev *dev, struct nvm_rq *rqd)
 {
         return dev->mt->submit_io(dev, rqd);