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macvtap: Let TUNSETOFFLOAD actually controll offload features.

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When the user issues TUNSETOFFLOAD ioctl, macvtap does not do
anything other then to verify arguments.  This patch adds
functionality to allow users to actually control offload features.
NETIF_F_GSO and NETIF_F_GRO are always on, but the rest of the
features can be controlled.

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vlad Yasevich
2013-06-25 16:04:21 -04:00
committed by David S. Miller
parent ac4e4af1e5
commit 2be5c76794
3 changed files with 76 additions and 1 deletions
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10
drivers/net/macvlan.c
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@@ -638,6 +638,14 @@ static int macvlan_ethtool_get_settings(struct net_device *dev,
return __ethtool_get_settings(vlan->lowerdev, cmd);
}
static netdev_features_t macvlan_fix_features(struct net_device *dev,
netdev_features_t features)
{
struct macvlan_dev *vlan = netdev_priv(dev);
return features & (vlan->set_features | ~MACVLAN_FEATURES);
}
static const struct ethtool_ops macvlan_ethtool_ops = {
.get_link = ethtool_op_get_link,
.get_settings = macvlan_ethtool_get_settings,
@@ -651,6 +659,7 @@ static const struct net_device_ops macvlan_netdev_ops = {
.ndo_stop = macvlan_stop,
.ndo_start_xmit = macvlan_start_xmit,
.ndo_change_mtu = macvlan_change_mtu,
.ndo_fix_features = macvlan_fix_features,
.ndo_change_rx_flags = macvlan_change_rx_flags,
.ndo_set_mac_address = macvlan_set_mac_address,
.ndo_set_rx_mode = macvlan_set_mac_lists,
@@ -791,6 +800,7 @@ int macvlan_common_newlink(struct net *src_net, struct net_device *dev,
vlan->port = port;
vlan->receive = receive;
vlan->forward = forward;
vlan->set_features = MACVLAN_FEATURES;
vlan->mode = MACVLAN_MODE_VEPA;
if (data && data[IFLA_MACVLAN_MODE])