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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 19/20] lightnvm: introduce max_phys_sects helper function
Date: Fri, 18 Nov 2016 15:43:41 +0100	[thread overview]
Message-ID: <1479480222-18790-20-git-send-email-javier@cnexlabs.com> (raw)
In-Reply-To: <1479480222-18790-1-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

  parent reply	other threads:[~2016-11-18 14:50 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-18 14:43 [PATCH 00/20] lightnvm: simplify media manager Javier González
2016-11-18 14:43 ` [PATCH 01/20] lightnvm: enable to send hint to erase command Javier González
2016-11-18 14:43 ` [PATCH 02/20] lightnvm: do not protect block 0 Javier González
2016-11-18 14:43 ` [PATCH 03/20] lightnvm: export set bad block table Javier González
2016-11-18 14:43 ` [PATCH 04/20] lightnvm: add ECC error codes Javier González
2016-11-18 14:43 ` [PATCH 05/20] lightnvm: rrpc: split bios of size > 256kb Javier González
2016-11-18 14:43 ` [PATCH 06/20] lightnvm: remove sysfs configuration interface Javier González
2016-11-18 14:43 ` [PATCH 07/20] lightnvm: cleanup unused target operations Javier González
2016-11-18 14:43 ` [PATCH 08/20] lightnvm: make address conversion functions global Javier González
2016-11-18 14:43 ` [PATCH 09/20] lightnvm: remove unnecessary variables in rrpc Javier González
2016-11-18 14:43 ` [PATCH 10/20] lightnvm: use constant name instead of value Javier González
2016-11-18 14:43 ` [PATCH 11/20] lightnvm: remove gen_lun abstraction Javier González
2016-11-18 14:43 ` [PATCH 12/20] lightnvm: manage lun partitions internally in mm Javier González
2016-11-18 14:43 ` [PATCH 13/20] lightnvm: move block provisioning to targets Javier González
2016-11-18 18:20   ` kbuild test robot
2016-11-18 14:43 ` [PATCH 14/20] lightnvm: remove get_lun operation on gennvm Javier González
2016-11-18 14:43 ` [PATCH 15/20] lightnvm: remove debug lun statistics from gennvm Javier González
2016-11-18 14:43 ` [PATCH 16/20] lightnvm: eliminate nvm_block abstraction on mm Javier González
2016-11-18 18:45   ` kbuild test robot
2016-11-18 14:43 ` [PATCH 17/20] lightnvm: eliminate nvm_lun abstraction in mm Javier González
2016-11-18 14:43 ` [PATCH 18/20] lightnvm: introduce helpers for generic ops in rrpc Javier González
2016-11-18 14:43 ` Javier González [this message]
2016-11-18 14:43 ` [PATCH 20/20] lightnvm: use target nvm on target-specific ops Javier González
2016-11-21 11:29 ` [PATCH 00/20] lightnvm: simplify media manager Matias Bjørling

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