Commit 739a91ef authored by Changli Gao's avatar Changli Gao Committed by David S. Miller

net_sched: cls_flow: add key rxhash

We can use rxhash to classify the traffic into flows. As rxhash maybe
supplied by NIC or RPS, it is cheaper.
Signed-off-by: default avatarChangli Gao <xiaosuo@gmail.com>
Acked-by: default avatarJamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 81ce790b
......@@ -332,6 +332,7 @@ enum {
FLOW_KEY_SKUID,
FLOW_KEY_SKGID,
FLOW_KEY_VLAN_TAG,
FLOW_KEY_RXHASH,
__FLOW_KEY_MAX,
};
......
......@@ -306,6 +306,11 @@ static u32 flow_get_vlan_tag(const struct sk_buff *skb)
return tag & VLAN_VID_MASK;
}
static u32 flow_get_rxhash(struct sk_buff *skb)
{
return skb_get_rxhash(skb);
}
static u32 flow_key_get(struct sk_buff *skb, int key)
{
switch (key) {
......@@ -343,6 +348,8 @@ static u32 flow_key_get(struct sk_buff *skb, int key)
return flow_get_skgid(skb);
case FLOW_KEY_VLAN_TAG:
return flow_get_vlan_tag(skb);
case FLOW_KEY_RXHASH:
return flow_get_rxhash(skb);
default:
WARN_ON(1);
return 0;
......
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