[libvirt-users] Vlan on vhostuser interfaces

[Pradeep K.S]

I am planning to configure vlan on vhostuser interfaces in the libvirt xml,
it throws out error.
Does this configuration is supported ? 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:*
[***@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>

[Laine Stump]

Post by Pradeep K.S
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).

Post by Pradeep K.S
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:*
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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