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bnx2: fixing a timout error due not refreshing TX timers correctly

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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>
This commit is contained in:
Breno Leitao 2009-12-18 20:35:34 -08:00 committed by David S. Miller
parent 4773a47d8a
commit e6bf95ffa8
1 changed files with 9 additions and 1 deletions
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10
drivers/net/bnx2.c
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@ -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;
}
}
}