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| author | Eric Dumazet <edumazet@google.com> | 2013-10-25 18:25:03 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-10-28 00:57:29 -0400 |
| commit | 82d8189826d54740607e6a240e602850ef62a07d (patch) | |
| tree | 239b1362fbe115628cc48af3d6b5ee73132964c4 /drivers/net/veth.c | |
| parent | 8c3a897bfab10f68f90252440bb29e6749a7312a (diff) | |
| download | lwn-82d8189826d54740607e6a240e602850ef62a07d.tar.gz lwn-82d8189826d54740607e6a240e602850ef62a07d.zip | |
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 <edumazet@google.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/veth.c')
| -rw-r--r-- | drivers/net/veth.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/veth.c b/drivers/net/veth.c index b2d034791e15..b24db7acbf12 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; } /* |