[libvirt-users] Vlan on vhostuser interfaces

[Laine Stump]

On 06/04/2018 06:50 PM, Pradeep K.S wrote:
> I am planning to configure vlan on vhostuser interfaces in the libvirt
> xml, it throws out error.
> Does this configuration is supported ?

No. configuration of vlan tags within libvirt is only supported for
emulated devices that use a tap device connected to Open vSwitch (i.e.
(<interface type='bridge|network'> .... <virtualport type='openvswitch'>
..."), or for SRIOV VFs that are assigned to the guest using vfio device
assignment ("<interface type='hostdev'>").

If there is a standard and reasonable method of setting up vlan tagging
for a vhostuser interface from the *host*, then we would consider
accepting patches to implement it (assuming that you want to write them :-).

Otherwise, you'll need to configure the vlan tagging to be done on the
guest (in the guest OS networking config).


> I can install higher version if
> required.
> 
> *Error:*
> unsupported configuration: an interface of type 'vhostuser' is
> requesting a vlan tag, but that is not supported for this type of connection
> 
> *Libvirt version:*
> [redhathost at qemu]# libvirtd --version
> libvirtd (libvirt) 3.2.0
> 
> *Qemu version:*
> QEMU emulator version 2.9.0(qemu-kvm-ev-2.9.0-16.el7_4.11.1)
> 
> *Domain XML*
> *
> *
>     <interface type='vhostuser'>
>       <mac address='02:3a:c1:4b:a1:0a'/>
>       <source type='unix' path='/tmp/vhost-test' mode='server'/>
>       <vlan trunk='yes'>
>         <tag id='3' nativeMode='tagged'/>
>         <tag id='4'/>
>       </vlan>
>       <model type='virtio'/>
>       <driver rx_queue_size='1024'>
>         <host mrg_rxbuf='on'/>
>       </driver>
>       <address type='pci' domain='0x0000' bus='0x00' slot='0x03'
> function='0x0'/>
>     </interface>
> 
> 
> 
> -- 
> Thanks and Regards,
> Pradeep.K.S.
> 
> 
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