On 01/08/2013 05:49 PM, Wanlong Gao wrote:
> On 01/08/2013 05:29 PM, Jason Wang wrote:
>> On 01/08/2013 05:07 PM, Wanlong Gao wrote:
>>> On 12/28/2012 06:32 PM, Jason Wang wrote:
>>>> + } else if (nc->peer->info->type != NET_CLIENT_OPTIONS_KIND_TAP) {
>>>> + ret = -1;
>>>> + } else {
>>>> + ret = tap_detach(nc->peer);
>>>> + }
>>>> +
>>>> + return ret;
>>>> +}
>>>> +
>>>> +static void virtio_net_set_queues(VirtIONet *n)
>>>> +{
>>>> + int i;
>>>> +
>>>> + for (i = 0; i < n->max_queues; i++) {
>>>> + if (i < n->curr_queues) {
>>>> + assert(!peer_attach(n, i));
>>>> + } else {
>>>> + assert(!peer_detach(n, i));
>>> I got a assert here,
>>> qemu-system-x86_64: /work/git/qemu/hw/virtio-net.c:330:
>>> virtio_net_set_queues: Assertion `!peer_detach(n, i)' failed.
>>>
>>> Any thoughts?
>>>
>>> Thanks,
>>> Wanlong Gao
>> Thanks for the testing, which steps or cases did you met this assertion,
>> migration, reboot or just changing the number of virtqueues?
> I use the 3.8-rc2 to test it again, I saw this tag has the multi-tap support.
>
> I just can't start the QEMU use -netdev tap,id=hostnet0,queues=2,fd=%d,fd=%d
> -device
> virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:ce:7b:29,bus=pci.0,addr=0x3
>
> I pre-opened two tap fds, did I missing something?
Nothing missed :) It should work.
Could you please try not use fd=X and let qemu to create the file
descriptors by itself? Btw, how did you create the two tap fds?
Thanks
>
> Thanks,
> Wanlong Gao
>
>>>> + }
>>>> + }
>>>> +}
>>>> +
>>>> +static void virtio_net_set_multiqueue(VirtIONet *n, int multiqueue, int
>>>> ctrl);
>>>> +
>>> --
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>>
>
