]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
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)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 9 Dec 2015 19:31:03 +0000 (14:31 -0500)
commitbd71bc5efc6ee83c4aa2f2515ad72430c84a9c00
tree110e2d6155dab6cfa2bcc1dbc7f210c57c93621e
parent7eaa9188e51d5d1584ba58bcdfa4395ae371aeed
macvtap: unbreak receiving of gro skb with frag list

[ Upstream commit f23d538bc24a83c16127c2eb82c9cf1adc2b5149 ]

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/net/macvtap.c