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| author | Stephen Hemminger <shemminger@linux-foundation.org> | 2007-06-27 09:47:37 +0200 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-07-11 07:15:52 +0200 |
| commit | d212f87b068c9d72065ef579d85b5ee6b8b59381 (patch) | |
| tree | a194d5c667c277c7ea5392c9cf97857a0cd1d321 /net/ipv4/af_inet.c | |
| parent | [XFRM]: Add module alias for transformation type. (diff) | |
| download | linux-d212f87b068c9d72065ef579d85b5ee6b8b59381.tar.xz linux-d212f87b068c9d72065ef579d85b5ee6b8b59381.zip | |
[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 <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/af_inet.c')
| -rw-r--r-- | net/ipv4/af_inet.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index 041fba3fa0aa..06c08e5740fb 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -1170,6 +1170,9 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb, int features) int ihl; int id; + if (!(features & NETIF_F_V4_CSUM)) + features &= ~NETIF_F_SG; + if (unlikely(skb_shinfo(skb)->gso_type & ~(SKB_GSO_TCPV4 | SKB_GSO_UDP | |