From: "Javier González" <jg@lightnvm.io>
To: mb@lightnvm.io
Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
"Javier González" <javier@cnexlabs.com>
Subject: [PATCH 7/8] lightnvm: introduce max_phys_sects helper function
Date: Mon, 21 Nov 2016 13:10:36 +0100 [thread overview]
Message-ID: <1479730237-20797-8-git-send-email-javier@cnexlabs.com> (raw)
In-Reply-To: <1479730237-20797-1-git-send-email-javier@cnexlabs.com>
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 <javier@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
next prev parent reply other threads:[~2016-11-21 12:11 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-21 12:10 [PATCH 0/8] lightnvm: simplify media manager V2 Javier González
2016-11-21 12:10 ` [PATCH 1/8] lightnvm: move block provisioning to targets Javier González
2016-11-21 12:10 ` [PATCH 2/8] lightnvm: remove get_lun operation on gennvm Javier González
2016-11-21 12:10 ` [PATCH 3/8] lightnvm: remove debug lun statistics from gennvm Javier González
2016-11-21 12:10 ` [PATCH 4/8] lightnvm: eliminate nvm_block abstraction on mm Javier González
2016-11-21 12:10 ` [PATCH 5/8] lightnvm: eliminate nvm_lun abstraction in mm Javier González
2016-11-21 12:10 ` [PATCH 6/8] lightnvm: introduce helpers for generic ops in rrpc Javier González
2016-11-21 12:10 ` Javier González [this message]
2016-11-21 12:10 ` [PATCH 8/8] lightnvm: use target nvm on target-specific ops Javier González
2016-11-23 12:06 ` [PATCH 0/8] lightnvm: simplify media manager V2 Matias Bjørling
2016-11-23 12:08 ` Javier González
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