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veth: extend device features 

veth is lacking most modern facilities, like SG, checksums, TSO.

It makes sense to extend dev->features to get them, or GRO aggregation
is defeated by a forced segmentation.

Reported-by: Andrew Vagin <avagin@parallels.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2012-12-29 16:26:10 +00:00 committed by David S. Miller
parent 2681128f0c
commit 8093315a91
1 changed files with 6 additions and 1 deletions
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7
drivers/net/veth.c
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@ -238,6 +238,10 @@ static const struct net_device_ops veth_netdev_ops = {
.ndo_set_mac_address = eth_mac_addr,
};
#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_HW_VLAN_TX | NETIF_F_HW_VLAN_RX)
static void veth_setup(struct net_device *dev)
{
ether_setup(dev);
@ -248,9 +252,10 @@ static void veth_setup(struct net_device *dev)
dev->netdev_ops = &veth_netdev_ops;
dev->ethtool_ops = &veth_ethtool_ops;
dev->features |= NETIF_F_LLTX;
dev->features |= VETH_FEATURES;
dev->destructor = veth_dev_free;
dev->hw_features = NETIF_F_HW_CSUM | NETIF_F_SG | NETIF_F_RXCSUM;
dev->hw_features = VETH_FEATURES;
}
/*