netdev - [PATCH net-next] rps: support IPIP encapsulation

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Message-ID: <1314218479.2506.15.camel@edumazet-laptop>
Date:	Wed, 24 Aug 2011 22:41:19 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	netdev <netdev@...r.kernel.org>, Tom Herbert <therbert@...gle.com>
Subject: [PATCH net-next] rps: support IPIP encapsulation

Skip IPIP header to get proper layer-4 information.

Like GRE tunnels, this only works if rxhash is not already provided by
the device itself (ethtool -K ethX rxhash off), to allow kernel compute
a software rxhash.

Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>
---
A piece of cake ;)

 net/core/dev.c |    2 ++
 1 file changed, 2 insertions(+)
diff --git a/net/core/dev.c b/net/core/dev.c
index a4306f7..b668a3d 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2608,6 +2608,8 @@ again:
 			}
 		}
 		break;
+	case IPPROTO_IPIP:
+		goto again;
 	default:
 		break;
 	}


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