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[5/5] lightnvm: do not load L2P table if not supported

Message ID 1457014001-23561-6-git-send-email-m@bjorling.me (mailing list archive)
State Accepted, archived
Delegated to: Jens Axboe
Headers show

Commit Message

Matias Bjørling March 3, 2016, 2:06 p.m. UTC 
From: Javier González <jg@lightnvm.io>

An Open-Channel SSD can work on two modes: (i) hybrid mode, where the
L2P table is maintained both by the host and by the device; and (ii)
full host-based, where the L2P table is uniquely maintained by the host.

In the advent of a new target implementing the full host-based mode, do
not assume that the L2P table must be loaded on the generic media
manager; check device properties loaded on the identify command instead.

Signed-off-by: Javier González <javier@cnexlabs.com>
Moved into the following statement.
Signed-off-by: Matias Bjørling <m@bjorling.me>
---
 drivers/lightnvm/gennvm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox

Patch

diff --git a/drivers/lightnvm/gennvm.c b/drivers/lightnvm/gennvm.c
index 42c1c2a..72e124a 100644
--- a/drivers/lightnvm/gennvm.c
+++ b/drivers/lightnvm/gennvm.c
@@ -257,7 +257,7 @@  static int gennvm_blocks_init(struct nvm_dev *dev, struct gen_nvm *gn)
 		}
 	}
 
-	if (dev->ops->get_l2p_tbl) {
+	if ((dev->identity.dom & NVM_RSP_L2P) && dev->ops->get_l2p_tbl) {
 		ret = dev->ops->get_l2p_tbl(dev, 0, dev->total_secs,
 							gennvm_block_map, dev);
 		if (ret) {