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authorJason Wang <jasowang@redhat.com>2015-10-23 07:57:05 +0300
committerDavid S. Miller <davem@davemloft.net>2015-10-23 12:34:39 +0300
commitf23d538bc24a83c16127c2eb82c9cf1adc2b5149 (patch)
treef1611d6aabc191770c2d4d37c47a94dc55ee723a /drivers/net/macvtap.c
parentfc4099f17240767554ff3a73977acb78ef615404 (diff)
downloadlinux-f23d538bc24a83c16127c2eb82c9cf1adc2b5149.tar.xz
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>
Diffstat (limited to 'drivers/net/macvtap.c')
-rw-r--r--drivers/net/macvtap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 248478c6f6e4..197c93937c2d 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)
{