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net_sched: cls_flow: add key rxhash

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We can use rxhash to classify the traffic into flows. As rxhash maybe
supplied by NIC or RPS, it is cheaper.

Signed-off-by: Changli Gao <[email protected]>
Acked-by: Jamal Hadi Salim <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Changli Gao 2010-08-21 06:23:15 +00:00 • committed by David S. Miller
commit 739a91ef06
2 changed files with 8 additions and 0 deletions
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7
net/sched/cls_flow.c
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@ -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;