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authorKrishna Kumar <krkumar2@in.ibm.com>2009-10-19 23:50:07 +0000
committerDavid S. Miller <davem@davemloft.net>2009-10-20 18:55:47 -0700
commita4ee3ce3293dc931fab19beb472a8bde1295aebe (patch)
treeca93936887aaf70a0d6b2cd2152a56c9b93a075e /net/core
parentea94ff3b55188df157a8740bdf3976a87563d705 (diff)
net: Use sk_tx_queue_mapping for connected sockets
For connected sockets, the first run of dev_pick_tx saves the calculated txq in sk_tx_queue_mapping. This is not saved if either the device has a queue select or the socket is not connected. Next iterations of dev_pick_tx uses the cached value of sk_tx_queue_mapping. Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
-rw-r--r--net/core/dev.c24
1 files changed, 18 insertions, 6 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index 28b0b9e992a..fa88dcd476d 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1791,13 +1791,25 @@ EXPORT_SYMBOL(skb_tx_hash);
static struct netdev_queue *dev_pick_tx(struct net_device *dev,
struct sk_buff *skb)
{
- const struct net_device_ops *ops = dev->netdev_ops;
- u16 queue_index = 0;
+ u16 queue_index;
+ struct sock *sk = skb->sk;
+
+ if (sk_tx_queue_recorded(sk)) {
+ queue_index = sk_tx_queue_get(sk);
+ } else {
+ const struct net_device_ops *ops = dev->netdev_ops;
- if (ops->ndo_select_queue)
- queue_index = ops->ndo_select_queue(dev, skb);
- else if (dev->real_num_tx_queues > 1)
- queue_index = skb_tx_hash(dev, skb);
+ if (ops->ndo_select_queue) {
+ queue_index = ops->ndo_select_queue(dev, skb);
+ } else {
+ queue_index = 0;
+ if (dev->real_num_tx_queues > 1)
+ queue_index = skb_tx_hash(dev, skb);
+
+ if (sk && sk->sk_dst_cache)
+ sk_tx_queue_set(sk, queue_index);
+ }
+ }
skb_set_queue_mapping(skb, queue_index);
return netdev_get_tx_queue(dev, queue_index);