macvtap: unbreak receiving of gro skb with frag list
authorJason Wang <jasowang@redhat.com>
Fri, 23 Oct 2015 04:57:05 +0000 (00:57 -0400)
committerDavid S. Miller <davem@davemloft.net>
Fri, 23 Oct 2015 09:34:39 +0000 (02:34 -0700)
commitf23d538bc24a83c16127c2eb82c9cf1adc2b5149
treef1611d6aabc191770c2d4d37c47a94dc55ee723a
parentfc4099f17240767554ff3a73977acb78ef615404
macvtap: unbreak receiving of gro skb with frag list

We don't have fraglist support in TAP_FEATURES. This will lead
software segmentation of gro skb with frag list. Fixes by having
frag list support in TAP_FEATURES.

With this patch single session of netperf receiving were restored from
about 5Gb/s to about 12Gb/s on mlx4.

Fixes a567dd6252 ("macvtap: simplify usage of tap_features")
Cc: Vlad Yasevich <vyasevic@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/macvtap.c