From a279006afa3377493c4240395c70430f2a9b0d2b Mon Sep 17 00:00:00 2001 From: =?utf8?q?Javier=20Gonz=C3=A1lez?= Date: Mon, 28 Nov 2016 22:39:12 +0100 Subject: [PATCH] lightnvm: introduce max_phys_sects helper function MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe --- 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 69f261e650bc..3d8eaac99ba8 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 99cd1e70e451..96375317b479 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 *); -- 2.20.1