bnx2x: fix rx checksum validation for IPv6
authorMichal Schmidt <mschmidt@redhat.com>
Thu, 13 Sep 2012 12:59:44 +0000 (12:59 +0000)
committerDavid S. Miller <davem@davemloft.net>
Tue, 18 Sep 2012 20:13:46 +0000 (16:13 -0400)
commite488921f44765e8ab6c48ca35e3f6b78df9819df
tree828ab3039c520cca06e85f5e135385774e6ac28d
parentc25463722509fef0ed630b271576a8c9a70236f3
bnx2x: fix rx checksum validation for IPv6

Commit d6cb3e41 "bnx2x: fix checksum validation" caused a performance
regression for IPv6. Rx checksum offload does not work. IPv6 packets
are passed to the stack with CHECKSUM_NONE.

The hardware obviously cannot perform IP checksum validation for IPv6,
because there is no checksum in the IPv6 header. This should not prevent
us from setting CHECKSUM_UNNECESSARY.

Tested on BCM57711.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c