diff options
| author | Flavio Leitner <fbl@redhat.com> | 2013-07-18 21:15:11 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-07-20 02:36:03 +0200 |
| commit | b69bbddfa136dc53ac319d58bc38b41f8aefffea (patch) | |
| tree | 12f0b412f355cf8c01103ab5230da480e4c33d68 /drivers/net/veth.c | |
| parent | qlcnic: Fix guest VLAN (diff) | |
| download | linux-b69bbddfa136dc53ac319d58bc38b41f8aefffea.tar.xz linux-b69bbddfa136dc53ac319d58bc38b41f8aefffea.zip | |
veth: add vlan features
The veth device doesn't provide the vlan features,
so TSO for example is disabled and that causes
performance issues when using tagged traffic.
The test topology looks like this:
br0 br1
/ \ / \
vnet veth0.10 ----- veth1.10 vnet
VM VM
The netperf results with current veth driver:
MIGRATED TCP STREAM TEST from 192.168.1.1 ()
port 0 AF_INET to 192.168.1.2 () port 0 AF_INET
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 10.01 2210.22
Now after applying the proposed patch:
MIGRATED TCP STREAM TEST from 192.168.1.1 ()
port 0 AF_INET to 192.168.1.2 () port 0 AF_INET
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 10.00 13067.47
Signed-off-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/veth.c')
| -rw-r--r-- | drivers/net/veth.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/veth.c b/drivers/net/veth.c index da866523cf20..eee1f19ef1e9 100644 --- a/drivers/net/veth.c +++ b/drivers/net/veth.c @@ -269,6 +269,7 @@ static void veth_setup(struct net_device *dev) dev->ethtool_ops = &veth_ethtool_ops; dev->features |= NETIF_F_LLTX; dev->features |= VETH_FEATURES; + dev->vlan_features = dev->features; dev->destructor = veth_dev_free; dev->hw_features = VETH_FEATURES; |