From 739a91ef0625e0e4a40b835f4f891313c47915df Mon Sep 17 00:00:00 2001 From: Changli Gao Date: Sat, 21 Aug 2010 06:23:15 +0000 Subject: [PATCH] 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: Changli Gao Acked-by: Jamal Hadi Salim Signed-off-by: David S. Miller --- include/linux/pkt_cls.h | 1 + net/sched/cls_flow.c | 7 +++++++ 2 files changed, 8 insertions(+) diff --git a/include/linux/pkt_cls.h b/include/linux/pkt_cls.h index 7f6ba8658abe..defbde203d07 100644 --- a/include/linux/pkt_cls.h +++ b/include/linux/pkt_cls.h @@ -332,6 +332,7 @@ enum { FLOW_KEY_SKUID, FLOW_KEY_SKGID, FLOW_KEY_VLAN_TAG, + FLOW_KEY_RXHASH, __FLOW_KEY_MAX, }; diff --git a/net/sched/cls_flow.c b/net/sched/cls_flow.c index cd709f1294df..5b271a18bc3a 100644 --- a/net/sched/cls_flow.c +++ b/net/sched/cls_flow.c @@ -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; -- 2.30.2