netdev - [PATCH] cnic: Shutdown iSCSI ring during uio

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Date:	Mon, 21 Sep 2009 18:39:37 -0700
From:	"Michael Chan" <mchan@...adcom.com>
To:	davem@...emloft.net
cc:	netdev@...r.kernel.org, michaelc@...wisc.edu,
	"Michael Chan" <mchan@...adcom.com>,
	"Benjamin Li" <benli@...adcom.com>
Subject: [PATCH] cnic: Shutdown iSCSI ring during uio_close.

The iSCSI ring should be shutdown during uio_close instead of uio_open
for proper operations.  This fixes the problem of the ring getting
stuck intermittently.

Signed-off-by: Michael Chan <mchan@...adcom.com>
Signed-off-by: Benjamin Li <benli@...adcom.com>
---
 drivers/net/cnic.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/cnic.c b/drivers/net/cnic.c
index d45eacb..211c8e9 100644
--- a/drivers/net/cnic.c
+++ b/drivers/net/cnic.c
@@ -85,8 +85,6 @@ static int cnic_uio_open(struct uio_info *uinfo, struct inode *inode)
 
 	cp->uio_dev = iminor(inode);
 
-	cnic_shutdown_bnx2_rx_ring(dev);
-
 	cnic_init_bnx2_tx_ring(dev);
 	cnic_init_bnx2_rx_ring(dev);
 
@@ -98,6 +96,8 @@ static int cnic_uio_close(struct uio_info *uinfo, struct inode *inode)
 	struct cnic_dev *dev = uinfo->priv;
 	struct cnic_local *cp = dev->cnic_priv;
 
+	cnic_shutdown_bnx2_rx_ring(dev);
+
 	cp->uio_dev = -1;
 	return 0;
 }
-- 
1.6.4.GIT


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