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macvtap: Fix macvtap_get_queue to use rxhash first 

It was reported that the macvtap device selects a
Acked-by: Michael S. Tsirkin <mst@redhat.com>

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Krishna Kumar 2011-11-23 22:17:14 +00:00 committed by David S. Miller
parent 89efea25cd
commit ef0002b577
1 changed files with 8 additions and 8 deletions
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16
drivers/net/macvtap.c
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@ -175,6 +175,14 @@ static struct macvtap_queue *macvtap_get_queue(struct net_device *dev,
if (!numvtaps) if (!numvtaps)
goto out; goto out;
/* Check if we can use flow to select a queue */
rxq = skb_get_rxhash(skb);
if (rxq) {
tap = rcu_dereference(vlan->taps[rxq % numvtaps]);
if (tap)
goto out;
}
if (likely(skb_rx_queue_recorded(skb))) { if (likely(skb_rx_queue_recorded(skb))) {
rxq = skb_get_rx_queue(skb); rxq = skb_get_rx_queue(skb);
@ -186,14 +194,6 @@ static struct macvtap_queue *macvtap_get_queue(struct net_device *dev,
goto out; goto out;
} }
/* Check if we can use flow to select a queue */
rxq = skb_get_rxhash(skb);
if (rxq) {
tap = rcu_dereference(vlan->taps[rxq % numvtaps]);
if (tap)
goto out;
}
/* Everything failed - find first available queue */ /* Everything failed - find first available queue */
for (rxq = 0; rxq < MAX_MACVTAP_QUEUES; rxq++) { for (rxq = 0; rxq < MAX_MACVTAP_QUEUES; rxq++) {
tap = rcu_dereference(vlan->taps[rxq]); tap = rcu_dereference(vlan->taps[rxq]);