Commit 4783256e authored Mar 18, 2009 by Pantelis Koukousoulas Committed by David S. Miller Mar 18, 2009

virtio_net: Make virtio_net support carrier detection



Impact: Make NetworkManager work with virtio_net

For now the semantics are simple: There is always carrier.

This allows a seamless experience with e.g., qemu/kvm
where NetworkManager just configures and sets up
everything automagically.

If/when a generally agreed-upon way to control
carrier on/off in the emulator/hypervisor level
emerges, it will be trivial to extend the driver
to support that too, but for now even this 2-liner
makes user experience that much better.

Signed-off-by: Pantelis Koukousoulas <pktoss@gmail.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 17d04500

drivers/net/virtio_net.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -612,6 +612,7 @@ static struct ethtool_ops virtnet_ethtool_ops = {
		.set_tx_csum = virtnet_set_tx_csum,
		.set_sg = ethtool_op_set_sg,
		.set_tso = ethtool_op_set_tso,
		.get_link = ethtool_op_get_link,
		};

		#define MIN_MTU 68
		@@ -739,6 +740,8 @@ static int virtnet_probe(struct virtio_device *vdev)
		goto unregister;
		}

		netif_carrier_on(dev);

		pr_debug("virtnet: registered device %s\n", dev->name);
		return 0;