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virtio_net: Make virtio_net support carrier detection

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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 <[email protected]>
Signed-off-by: Rusty Russell <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Pantelis Koukousoulas 2009-03-18 18:40:02 -07:00 • committed by David S. Miller
commit 4783256ef9
1 changed files with 3 additions and 0 deletions
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3
drivers/net/virtio_net.c
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@ -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;