openvswitch: Use TCP flags in the flow key for stats.
We already extract the TCP flags for the key, might as well use that for stats. Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com> Acked-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: Jesse Gross <jesse@nicira.com>
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@ -69,14 +69,12 @@ void ovs_flow_stats_update(struct sw_flow *flow, struct sk_buff *skb)
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stats = rcu_dereference(flow->stats[node]);
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if ((flow->key.eth.type == htons(ETH_P_IP) ||
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flow->key.eth.type == htons(ETH_P_IPV6)) &&
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flow->key.ip.frag != OVS_FRAG_TYPE_LATER &&
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flow->key.ip.proto == IPPROTO_TCP &&
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likely(skb->len >= skb_transport_offset(skb) + sizeof(struct tcphdr))) {
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tcp_flags = TCP_FLAGS_BE16(tcp_hdr(skb));
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if (likely(flow->key.ip.proto == IPPROTO_TCP)) {
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if (likely(flow->key.eth.type == htons(ETH_P_IP)))
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tcp_flags = flow->key.ipv4.tp.flags;
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else if (likely(flow->key.eth.type == htons(ETH_P_IPV6)))
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tcp_flags = flow->key.ipv6.tp.flags;
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}
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/* Check if already have node-specific stats. */
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if (likely(stats)) {
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spin_lock(&stats->lock);
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