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flow_dissector: support L2 GRE 

Add support for L2 GRE tunnels, so that RPS can be more effective.

Signed-off-by: Michael Dalton <mwdalton@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Michael Dalton 2013-03-11 06:52:28 +00:00 committed by David S. Miller
parent f4f3efdaf9
commit e1733de224
1 changed files with 11 additions and 0 deletions
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11
net/core/flow_dissector.c
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@ -119,6 +119,17 @@ ipv6:
nhoff += 4;
if (hdr->flags & GRE_SEQ)
nhoff += 4;
if (proto == htons(ETH_P_TEB)) {
const struct ethhdr *eth;
struct ethhdr _eth;
eth = skb_header_pointer(skb, nhoff,
sizeof(_eth), &_eth);
if (!eth)
return false;
proto = eth->h_proto;
nhoff += sizeof(*eth);
}
goto again;
}
break;