From d212f87b068c9d72065ef579d85b5ee6b8b59381 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Wed, 27 Jun 2007 00:47:37 -0700 Subject: [NET]: IPV6 checksum offloading in network devices The existing model for checksum offload does not correctly handle devices that can offload IPV4 and IPV6 only. The NETIF_F_HW_CSUM flag implies device can do any arbitrary protocol. This patch: * adds NETIF_F_IPV6_CSUM for those devices * fixes bnx2 and tg3 devices that need it * add NETIF_F_IPV6_CSUM to ipv6 output (incl GSO) * fixes assumptions about NETIF_F_ALL_CSUM in nat * adjusts bridge union of checksumming computation Signed-off-by: David S. Miller --- net/ipv4/ip_output.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/ipv4/ip_output.c') diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index 34ea4547ebbe..a7dd343d3a03 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -837,7 +837,7 @@ int ip_append_data(struct sock *sk, */ if (transhdrlen && length + fragheaderlen <= mtu && - rt->u.dst.dev->features & NETIF_F_ALL_CSUM && + rt->u.dst.dev->features & NETIF_F_V4_CSUM && !exthdrlen) csummode = CHECKSUM_PARTIAL; -- cgit v1.2.3