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Commit 8093315a authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
Browse files

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: default avatarAndrew Vagin <avagin@parallels.com>
Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Cc: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 2681128f

drivers/net/veth.c

+6 −1
Original line number Diff line number Diff line
@@ -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;

}



/*