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bridge: Add support for TX vlan offload.

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If some of the underlying devices support it, enable vlan offload on
transmit for bridge devices.  This allows senders to take advantage of the
hardware support, similar to other forms of acceleration.

Signed-off-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jesse Gross 2010-10-20 13:56:08 +00:00 committed by David S. Miller
parent d5dbda2380
commit 361ff8a6cf
1 changed files with 7 additions and 1 deletions
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8
net/bridge/br_device.c
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@ -212,6 +212,11 @@ static int br_set_tx_csum(struct net_device *dev, u32 data)
return 0;
}
static int br_set_flags(struct net_device *netdev, u32 data)
{
return ethtool_op_set_flags(netdev, data, ETH_FLAG_TXVLAN);
}
#ifdef CONFIG_NET_POLL_CONTROLLER
static void br_poll_controller(struct net_device *br_dev)
{
@ -304,6 +309,7 @@ static const struct ethtool_ops br_ethtool_ops = {
.get_ufo = ethtool_op_get_ufo,
.set_ufo = ethtool_op_set_ufo,
.get_flags = ethtool_op_get_flags,
.set_flags = br_set_flags,
};
static const struct net_device_ops br_netdev_ops = {
@ -343,5 +349,5 @@ void br_dev_setup(struct net_device *dev)
dev->features = NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_HIGHDMA |
NETIF_F_GSO_MASK | NETIF_F_NO_CSUM | NETIF_F_LLTX |
NETIF_F_NETNS_LOCAL | NETIF_F_GSO;
NETIF_F_NETNS_LOCAL | NETIF_F_GSO | NETIF_F_HW_VLAN_TX;
}