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Re: [Qemu-devel] 'id' assigned to -device could not be set as net-client
Re: [Qemu-devel] 'id' assigned to -device could not be set as net-client name (was Re: Nic devices' name are wrongly repeated)
Thu, 18 Apr 2013 12:03:32 +0200
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On 18/04/2013 11:47, Amos Kong wrote:
On Thu, Apr 18, 2013 at 11:12:56AM +0200, KONRAD Frédéric wrote:
On 18/04/2013 10:19, Amos Kong wrote:
On Wed, Apr 10, 2013 at 02:28:40PM +0200, Andreas Färber wrote:
Am 10.04.2013 14:05, schrieb Amos Kong:
If we don't assign 'id' for nic device, device name will be $model.$idx. The
$idx are always 0 if we set nic by new style.
# qemu-upstream -device virtio-net-pci,netdev=h1 -netdev tap,id=h1 -device
virtio-net-pci,netdev=h2 -netdev tap,id=h2 ...
(qemu) info network
it's introduced by commit d33d93b2
I can see that's inconvenient, but...
If we set links down by 'set_link virtio-net-pci.0', the first nic
will be set down. But how to set the second link down by id?
As you would do for all devices? I.e., add ,id=youruniqueid to -device.
Your following patch just introduced a regression, 'id' assigned to -device
could not be set as net-client name.
A regression from "net: make nic name unique" ?
No, regression caused by commit: e37da3945fa2fde161e1b217f937fc318c4b7639
qemu -device virtio-net-pci,netdev=ndev1,id=id1 -netdev tap,id=ndev1 \
-device e1000,netdev=ndev2,id=id2 -netdev tap,id=ndev2
(qemu) info network
yes :/, that seems to be the side effect of cutting virtio-net-pci in
virtio-net-pci + virtio-net-device.
Here virtio-net-device is the network device as you see in info network.
virtio-net-pci isn't anymore.
I wonder how to solve that as we can't duplicate the id.
If we don't assign 'id' for -device, the net-client name will be auto
generated (not duplicated).
Before your commit e37da394, user assigned 'id' will be record to
(DeviceState *)dev->id, it will be used in qemu_new_nic().
Yes sure, what I mean, is:
virtio-net-pci actually get the id and is not the nic device anymore.
and virtio-net-pci create the new virtio-net-device which has no id
(so it is autogenerated).
That's why you didn't the id in info network.
I will take a look.
[Qemu-devel] 'id' assigned to -device could not be set as net-client name (was Re: Nic devices' name are wrongly repeated), Amos Kong, 2013/04/18
- Re: [Qemu-devel] Nic devices' name are wrongly repeated, (continued)