.set_settings = virtnet_set_settings,
};
-#define MIN_MTU 68
-#define MAX_MTU 65535
-
-static int virtnet_change_mtu(struct net_device *dev, int new_mtu)
-{
- if (new_mtu < MIN_MTU || new_mtu > MAX_MTU)
- return -EINVAL;
- dev->mtu = new_mtu;
- return 0;
-}
-
static const struct net_device_ops virtnet_netdev = {
.ndo_open = virtnet_open,
.ndo_stop = virtnet_close,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = virtnet_set_mac_address,
.ndo_set_rx_mode = virtnet_set_rx_mode,
- .ndo_change_mtu = virtnet_change_mtu,
.ndo_get_stats64 = virtnet_stats,
.ndo_vlan_rx_add_vid = virtnet_vlan_rx_add_vid,
.ndo_vlan_rx_kill_vid = virtnet_vlan_rx_kill_vid,
return true;
}
+#define MIN_MTU ETH_MIN_MTU
+#define MAX_MTU ETH_MAX_MTU
+
static int virtnet_probe(struct virtio_device *vdev)
{
int i, err;
dev->vlan_features = dev->features;
+ /* MTU range: 68 - 65535 */
+ dev->min_mtu = MIN_MTU;
+ dev->max_mtu = MAX_MTU;
+
/* Configuration may specify what MAC to use. Otherwise random. */
if (virtio_has_feature(vdev, VIRTIO_NET_F_MAC))
virtio_cread_bytes(vdev,
mtu = virtio_cread16(vdev,
offsetof(struct virtio_net_config,
mtu));
- if (virtnet_change_mtu(dev, mtu))
+ if (mtu < dev->min_mtu || mtu > dev->max_mtu)
__virtio_clear_bit(vdev, VIRTIO_NET_F_MTU);
+ else
+ dev->mtu = mtu;
}
if (vi->any_header_sg)