Target devices do not have access to the device driver operations.
Introduce a helper function that exposes the max. number of physical
sectors supported by the underlying device.
Signed-off-by: Javier González <jav...@cnexlabs.com>
---
drivers/lightnvm/core.c | 8 ++++++++
include/linux/lightnvm.h | 1 +
2 files changed, 9 insertions(+)
diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c
index 69f261e..3d8eaac 100644
--- a/drivers/lightnvm/core.c
+++ b/drivers/lightnvm/core.c
@@ -203,6 +203,14 @@ int nvm_set_bb_tbl(struct nvm_dev *dev, struct ppa_addr
*ppas, int nr_ppas,
}
EXPORT_SYMBOL(nvm_set_bb_tbl);
+int nvm_max_phys_sects(struct nvm_tgt_dev *tgt_dev)
+{
+ struct nvm_dev *dev = tgt_dev->parent;
+
+ return dev->ops->max_phys_sect;
+}
+EXPORT_SYMBOL(nvm_max_phys_sects);
+
int nvm_submit_io(struct nvm_tgt_dev *tgt_dev, struct nvm_rq *rqd)
{
struct nvm_dev *dev = tgt_dev->parent;
diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h
index b3ca603..44780ef 100644
--- a/include/linux/lightnvm.h
+++ b/include/linux/lightnvm.h
@@ -529,6 +529,7 @@ extern void nvm_unregister(struct nvm_dev *);
extern int nvm_set_bb_tbl(struct nvm_dev *dev, struct ppa_addr *ppas,
int nr_ppas, int type);
+extern int nvm_max_phys_sects(struct nvm_tgt_dev *);
extern int nvm_submit_io(struct nvm_tgt_dev *, struct nvm_rq *);
extern void nvm_generic_to_addr_mode(struct nvm_dev *, struct nvm_rq *);
extern void nvm_addr_to_generic_mode(struct nvm_dev *, struct nvm_rq *);
--
2.7.4
