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[PATCH net] macvtap: unbreak receiving of gro skb with frag list

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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>
---
 drivers/net/macvtap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 248478c..197c939 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -137,7 +137,7 @@ static const struct proto_ops macvtap_socket_ops;
 #define TUN_OFFLOADS (NETIF_F_HW_CSUM | NETIF_F_TSO_ECN | NETIF_F_TSO | \
 		      NETIF_F_TSO6 | NETIF_F_UFO)
 #define RX_OFFLOADS (NETIF_F_GRO | NETIF_F_LRO)
-#define TAP_FEATURES (NETIF_F_GSO | NETIF_F_SG)
+#define TAP_FEATURES (NETIF_F_GSO | NETIF_F_SG | NETIF_F_FRAGLIST)
 
 static struct macvlan_dev *macvtap_get_vlan_rcu(const struct net_device *dev)
 {
-- 
1.8.3.1

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[PATCH net] macvtap: unbreak receiving of gro skb with frag list Jason Wang <jasowang@redhat.com> - 2015-10-23 07:00 +0200
  Re: [PATCH net] macvtap: unbreak receiving of gro skb with frag  list David Miller <davem@davemloft.net> - 2015-10-23 11:20 +0200
  Re: [PATCH net] macvtap: unbreak receiving of gro skb with frag list "Michael S. Tsirkin" <mst@redhat.com> - 2015-10-23 15:40 +0200
    Re: [PATCH net] macvtap: unbreak receiving of gro skb with frag list Jason Wang <jasowang@redhat.com> - 2015-10-26 04:20 +0100
      Re: [PATCH net] macvtap: unbreak receiving of gro skb with frag list "Michael S. Tsirkin" <mst@redhat.com> - 2015-10-26 07:10 +0100
        Re: [PATCH net] macvtap: unbreak receiving of gro skb with frag list Jason Wang <jasowang@redhat.com> - 2015-10-26 08:00 +0100
          Re: [PATCH net] macvtap: unbreak receiving of gro skb with frag list "Michael S. Tsirkin" <mst@redhat.com> - 2015-10-26 09:40 +0100
            Re: [PATCH net] macvtap: unbreak receiving of gro skb with frag list Jason Wang <jasowang@redhat.com> - 2015-10-27 04:00 +0100
              Re: [PATCH net] macvtap: unbreak receiving of gro skb with frag list "Michael S. Tsirkin" <mst@redhat.com> - 2015-10-27 10:10 +0100
                Re: [PATCH net] macvtap: unbreak receiving of gro skb with frag list Jason Wang <jasowang@redhat.com> - 2015-10-28 04:00 +0100

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