[openstack-dev] [nova] Feature Freeze Exception Request (libvirt vhostuser vif driver)

Nikola Đipanov ndipanov at redhat.com
Thu Feb 12 06:52:05 UTC 2015


On 02/09/2015 11:04 AM, Czesnowicz, Przemyslaw wrote:
> Hi,                                                      
> 
>  
> 
> I would like to request FFE for vhostuser vif driver.
> 
>  
> 
> 2 reviews :
> https://review.openstack.org/#/q/status:open+project:openstack/nova+branch:master+topic:bp/libvirt-vif-vhost-user,n,z
> 
>  
> 
> BP: https://blueprints.launchpad.net/nova/+spec/libvirt-vif-vhost-user
> 
> Spec: https://review.openstack.org/138736
> 
>  
> 
> Blueprint was approved but it’s status was changed because of FF.
> 
> Vhostuser is a Qemu feature that allows fastpath into the VM for
> userspace vSwitches.
> 
> The changes are small and mostly contained to libvirt driver.
> 
> Vhostuser support was proposed for Juno by Snabb switch guys but didn’t
> make it,
> 
> this implementation supports their usecase as well .
>

The patches are really non-invasive, and extremely contained, and have
had several reviews. I cannot come up with a good reason to keep it out.

This is also interesting for the NFV use-cases (mainly) so I'd like to
see it happen on that account too - and thus will be happy to sponsor it.

N.



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