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authorBreno Leitao <leitao@linux.vnet.ibm.com>2009-12-18 20:35:34 -0800
committerDavid S. Miller <davem@davemloft.net>2009-12-18 20:35:34 -0800
commite6bf95ffa8d6f8f4b7ee33ea01490d95b0bbeb6e (patch)
tree6a361fa1fde7ac2ce613d5ad88ff9b688c02f5ad /drivers
parent4773a47d8a564633cd80b94df397e91e946893e2 (diff)
downloadlinux-e6bf95ffa8d6f8f4b7ee33ea01490d95b0bbeb6e.tar.gz
bnx2: fixing a timout error due not refreshing TX timers correctly
When running the following script on an active bnx2 interface:

while(true); do ifconfig ethX mtu 9000; ifconfig ethX mtu 1500; done

A timeout error appears and dumps the following stack:

NETDEV WATCHDOG: eth4 (bnx2): transmit queue 0 timed out
------------[ cut here ]------------
Badness at net/sched/sch_generic.c:261
<snip>

This patch just fixes the way that ->trans_start is refreshed.

Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com>
Acked-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/bnx2.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index c3e2b279fca0..f38764ec02c3 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -654,9 +654,17 @@ bnx2_netif_stop(struct bnx2 *bp)
 {
 	bnx2_cnic_stop(bp);
 	if (netif_running(bp->dev)) {
+		int i;
+
 		bnx2_napi_disable(bp);
 		netif_tx_disable(bp->dev);
-		bp->dev->trans_start = jiffies;	/* prevent tx timeout */
+		/* prevent tx timeout */
+		for (i = 0; i <  bp->dev->num_tx_queues; i++) {
+			struct netdev_queue *txq;
+
+			txq = netdev_get_tx_queue(bp->dev, i);
+			txq->trans_start = jiffies;
+		}
 	}
 }