From: Eric Dumazet Date: Sat, 26 Oct 2013 01:25:03 +0000 (-0700) Subject: veth: extend features to support tunneling X-Git-Tag: v3.13-rc1~105^2~121 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=82d8189826d54740607e6a240e602850ef62a07d;p=kernel%2Fkernel-generic.git veth: extend features to support tunneling While investigating on a recent vxlan regression, I found veth was using a zero features set for vxlan tunnels. We have to segment GSO frames, copy the payload, and do the checksum. This patch brings a ~200% performance increase We probably have to add hw_enc_features support on other virtual devices. Signed-off-by: Eric Dumazet Cc: Alexei Starovoitov Signed-off-by: David S. Miller --- diff --git a/drivers/net/veth.c b/drivers/net/veth.c index b2d0347..b24db7a 100644 --- a/drivers/net/veth.c +++ b/drivers/net/veth.c @@ -261,6 +261,8 @@ static const struct net_device_ops veth_netdev_ops = { #define VETH_FEATURES (NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \ NETIF_F_HW_CSUM | NETIF_F_RXCSUM | NETIF_F_HIGHDMA | \ + NETIF_F_GSO_GRE | NETIF_F_GSO_UDP_TUNNEL | \ + NETIF_F_GSO_IPIP | NETIF_F_GSO_SIT | NETIF_F_UFO | \ NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX | \ NETIF_F_HW_VLAN_STAG_TX | NETIF_F_HW_VLAN_STAG_RX ) @@ -279,6 +281,7 @@ static void veth_setup(struct net_device *dev) dev->destructor = veth_dev_free; dev->hw_features = VETH_FEATURES; + dev->hw_enc_features = VETH_FEATURES; } /*