diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index fdac1159253e45f24f0822f9520a40d23860bff0..9464e64529679c75c6e5066d0bba1e7f85f63284 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -724,6 +724,9 @@ struct net_device void (*poll_controller)(struct net_device *dev); #endif + u16 (*select_queue)(struct net_device *dev, + struct sk_buff *skb); + #ifdef CONFIG_NET_NS /* Network namespace this network device is inside */ struct net *nd_net; diff --git a/net/core/dev.c b/net/core/dev.c index f027a1ac4fbb6d485cdc6674f6013c1e82497113..7ca9564d2f44765a239760341f6fa4fbcfa10cac 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1670,6 +1670,9 @@ static struct netdev_queue *dev_pick_tx(struct net_device *dev, { u16 queue_index = 0; + if (dev->select_queue) + queue_index = dev->select_queue(dev, skb); + skb_set_queue_mapping(skb, queue_index); return netdev_get_tx_queue(dev, queue_index); } @@ -1710,14 +1713,14 @@ int dev_queue_xmit(struct sk_buff *skb) } gso: - txq = dev_pick_tx(dev, skb); - spin_lock_prefetch(&txq->lock); - /* Disable soft irqs for various locks below. Also * stops preemption for RCU. */ rcu_read_lock_bh(); + txq = dev_pick_tx(dev, skb); + spin_lock_prefetch(&txq->lock); + /* Updates of qdisc are serialized by queue->lock. * The struct Qdisc which is pointed to by qdisc is now a * rcu structure - it may be accessed without acquiring