Commit e1733de2 authored by Michael Dalton's avatar Michael Dalton Committed by David S. Miller
Browse files

flow_dissector: support L2 GRE 



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

Signed-off-by: default avatarMichael Dalton <mwdalton@google.com>
Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent f4f3efda

net/core/flow_dissector.c

+11 −0
Original line number Diff line number Diff line
@@ -119,6 +119,17 @@ bool skb_flow_dissect(const struct sk_buff *skb, struct flow_keys *flow) 
				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;