From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Wed, 24 Aug 2011 10:41:19 +0000 (+0000)
Subject: rps: support IPIP encapsulation
X-Git-Tag: v3.2-rc1~129^2~419
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ec5efe7946280d1e84603389a1030ccec0a767ae;p=platform%2Fkernel%2Flinux-exynos.git

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@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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;
 	}