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| author | Changli Gao <xiaosuo@gmail.com> | 2011-08-18 22:07:54 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-08-18 22:07:54 -0700 |
| commit | 1ff1986fc94ee711df3cf19d45f2abf351436a6d (patch) | |
| tree | 8301dc9db8afac2dcd7cc864ac1abd56657d6f27 /net | |
| parent | 939cf3069d31a6e0e335eb5e08ef04895f2d013d (diff) | |
| download | linux-3.10-1ff1986fc94ee711df3cf19d45f2abf351436a6d.tar.gz linux-3.10-1ff1986fc94ee711df3cf19d45f2abf351436a6d.tar.bz2 linux-3.10-1ff1986fc94ee711df3cf19d45f2abf351436a6d.zip | |
net: rps: support 802.1Q
For the 802.1Q packets, if the NIC doesn't support hw-accel-vlan-rx, RPS
won't inspect the internal 4 tuples to generate skb->rxhash, so this kind
of traffic can't get any benefit from RPS.
This patch adds the support for 802.1Q to RPS.
Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/dev.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index ead0366ee1e..be7ee506f17 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2529,6 +2529,7 @@ void __skb_get_rxhash(struct sk_buff *skb) int nhoff, hash = 0, poff; const struct ipv6hdr *ip6; const struct iphdr *ip; + const struct vlan_hdr *vlan; u8 ip_proto; u32 addr1, addr2; u16 proto; @@ -2565,6 +2566,13 @@ again: addr2 = (__force u32) ip6->daddr.s6_addr32[3]; nhoff += 40; break; + case __constant_htons(ETH_P_8021Q): + if (!pskb_may_pull(skb, sizeof(*vlan) + nhoff)) + goto done; + vlan = (const struct vlan_hdr *) (skb->data + nhoff); + proto = vlan->h_vlan_encapsulated_proto; + nhoff += sizeof(*vlan); + goto again; default: goto done; } |