tree a194d5c667c277c7ea5392c9cf97857a0cd1d321
parent d3d6dd3adaaad71eae20902ed81808a66a40a5b9
author Stephen Hemminger <shemminger@linux-foundation.org> 1182930457 -0700
committer David S. Miller <davem@sunset.davemloft.net> 1184130952 -0700

[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>