Let first get it merged in master :) 

> -----Original Message-----
> From: <email address hidden> <email address hidden> On Behalf Of
> Noam Angel
> Sent: Thursday, August 30, 2018 7:30 PM
> To: Moshe Levi <email address hidden>
> Subject: [Bug 1789074] Re: failed to boot guest with vnic_type direct when
> rx_queue_size and tx_queue_size are set
> 
> If the regression is also in OSP13, can you backport to queens aswell?
> 
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> Title:
>   failed to boot guest with vnic_type direct when rx_queue_size and
>   tx_queue_size are set
> 
> Status in OpenStack Compute (nova):
>   In Progress
> Status in OpenStack Compute (nova) rocky series:
>   New
> 
> Bug description:
>   Description of problem:
> 
>   Nova compute forces the virtio RX/TX Queue Size also on SRIOV devices.
>   This makes VM spawn to fail. The configurable RX/TX Queue Size code is
> similar all the way from OSP10 to OSP13, so it's possible the issue is present
> also on other releases.
> 
>   Version-Release number of selected component (if applicable):
>   OSP13 z3
> 
>   How reproducible:
> 
>   (quick and dirty way)
>   Change nova config file
> 
>   # crudini --set /var/lib/config-data/puppet-
> generated/nova_libvirt/etc/nova/nova.conf libvirt rx_queue_size 1024
>   # crudini --set /var/lib/config-data/puppet-
> generated/nova_libvirt/etc/nova/nova.conf libvirt tx_queue_size 1024
> 
>   # restart nova_compute container
>   docker restart nova_compute
> 
>   # boot a VM with an SRIOV (PF or VF) interface
> 
>   Actual results:
>   Nova add on the sriov port section rx_queue_size
> 
>       <interface type="hostdev" managed="yes">
>         <mac address="fa:16:3e:9d:f0:52"/>
>         <driver name="vhost" rx_queue_size="1024"/>
>         <source>
>           <address type="pci" domain="0x0000" bus="0x01" slot="0x14"
> function="0x7"/>
>         </source>
>         <vlan>
>           <tag id="435"/>
>         </vlan>
> 
>   Expected results:
> 
>       <interface type='hostdev' managed='yes'>
>         <mac address='fa:16:3e:83:b2:84'/>
>         <driver name='vfio'/>
>         <source>
>           <address type='pci' domain='0x0000' bus='0x01' slot='0x14'
> function='0x7'/>
>         </source>
>         <vlan>
>           <tag id='435'/>
>         </vlan>
>         <alias name='hostdev0'/>
>         <address type='pci' domain='0x0000' bus='0x00' slot='0x05'
> function='0x0'/>
>       </interface>
> 
>   Additional info:
> 
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