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path: root/drivers/net/xen-netback/interface.c
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Diffstat (limited to 'drivers/net/xen-netback/interface.c')
-rw-r--r--drivers/net/xen-netback/interface.c84
1 files changed, 15 insertions, 69 deletions
diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index de569cc19da4..0ca86f9ec4ed 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -165,69 +165,18 @@ static int xenvif_change_mtu(struct net_device *dev, int mtu)
return 0;
}
-static void xenvif_set_features(struct xenvif *vif)
-{
- struct net_device *dev = vif->dev;
- u32 features = dev->features;
-
- if (vif->can_sg)
- features |= NETIF_F_SG;
- if (vif->gso || vif->gso_prefix)
- features |= NETIF_F_TSO;
- if (vif->csum)
- features |= NETIF_F_IP_CSUM;
-
- features &= ~(vif->features_disabled);
-
- if (!(features & NETIF_F_SG) && dev->mtu > ETH_DATA_LEN)
- dev->mtu = ETH_DATA_LEN;
-
- dev->features = features;
-}
-
-static int xenvif_set_tx_csum(struct net_device *dev, u32 data)
-{
- struct xenvif *vif = netdev_priv(dev);
- if (data) {
- if (!vif->csum)
- return -EOPNOTSUPP;
- vif->features_disabled &= ~NETIF_F_IP_CSUM;
- } else {
- vif->features_disabled |= NETIF_F_IP_CSUM;
- }
-
- xenvif_set_features(vif);
- return 0;
-}
-
-static int xenvif_set_sg(struct net_device *dev, u32 data)
+static u32 xenvif_fix_features(struct net_device *dev, u32 features)
{
struct xenvif *vif = netdev_priv(dev);
- if (data) {
- if (!vif->can_sg)
- return -EOPNOTSUPP;
- vif->features_disabled &= ~NETIF_F_SG;
- } else {
- vif->features_disabled |= NETIF_F_SG;
- }
- xenvif_set_features(vif);
- return 0;
-}
+ if (!vif->can_sg)
+ features &= ~NETIF_F_SG;
+ if (!vif->gso && !vif->gso_prefix)
+ features &= ~NETIF_F_TSO;
+ if (!vif->csum)
+ features &= ~NETIF_F_IP_CSUM;
-static int xenvif_set_tso(struct net_device *dev, u32 data)
-{
- struct xenvif *vif = netdev_priv(dev);
- if (data) {
- if (!vif->gso && !vif->gso_prefix)
- return -EOPNOTSUPP;
- vif->features_disabled &= ~NETIF_F_TSO;
- } else {
- vif->features_disabled |= NETIF_F_TSO;
- }
-
- xenvif_set_features(vif);
- return 0;
+ return features;
}
static const struct xenvif_stat {
@@ -274,12 +223,6 @@ static void xenvif_get_strings(struct net_device *dev, u32 stringset, u8 * data)
}
static struct ethtool_ops xenvif_ethtool_ops = {
- .get_tx_csum = ethtool_op_get_tx_csum,
- .set_tx_csum = xenvif_set_tx_csum,
- .get_sg = ethtool_op_get_sg,
- .set_sg = xenvif_set_sg,
- .get_tso = ethtool_op_get_tso,
- .set_tso = xenvif_set_tso,
.get_link = ethtool_op_get_link,
.get_sset_count = xenvif_get_sset_count,
@@ -293,6 +236,7 @@ static struct net_device_ops xenvif_netdev_ops = {
.ndo_open = xenvif_open,
.ndo_stop = xenvif_close,
.ndo_change_mtu = xenvif_change_mtu,
+ .ndo_fix_features = xenvif_fix_features,
};
struct xenvif *xenvif_alloc(struct device *parent, domid_t domid,
@@ -331,7 +275,8 @@ struct xenvif *xenvif_alloc(struct device *parent, domid_t domid,
vif->credit_timeout.expires = jiffies;
dev->netdev_ops = &xenvif_netdev_ops;
- xenvif_set_features(vif);
+ dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO;
+ dev->features = dev->hw_features;
SET_ETHTOOL_OPS(dev, &xenvif_ethtool_ops);
dev->tx_queue_len = XENVIF_QUEUE_LENGTH;
@@ -367,8 +312,6 @@ int xenvif_connect(struct xenvif *vif, unsigned long tx_ring_ref,
if (vif->irq)
return 0;
- xenvif_set_features(vif);
-
err = xen_netbk_map_frontend_rings(vif, tx_ring_ref, rx_ring_ref);
if (err < 0)
goto err;
@@ -384,9 +327,12 @@ int xenvif_connect(struct xenvif *vif, unsigned long tx_ring_ref,
xenvif_get(vif);
rtnl_lock();
- netif_carrier_on(vif->dev);
if (netif_running(vif->dev))
xenvif_up(vif);
+ if (!vif->can_sg && vif->dev->mtu > ETH_DATA_LEN)
+ dev_set_mtu(vif->dev, ETH_DATA_LEN);
+ netdev_update_features(vif->dev);
+ netif_carrier_on(vif->dev);
rtnl_unlock();
return 0;