[Openstack] Neutron support for passthrough of networking devices?

Chris Friesen chris.friesen at windriver.com
Wed Oct 9 18:53:06 UTC 2013

On 10/09/2013 12:31 PM, Jiang, Yunhong wrote:
> When we worked on H release, we target for basic PCI support like
> accelerator card or encryption card etc. I think SR-IOV network
> support is more complex and requires more effort, in both Nova side
> and Neutron side. We are working on some enhancement in Nova side
> now. But the whole picture may need more time/discussion.

Can you elaborate on the complexities?  Assuming you enable SR-IOV on 
the host, and pass it through to the guest using the normal PCI 
passthrough mechanisms, what's the extra complexity?

Do we run into the same complexity if we have spare physical NICs on the 
host that get passed in to the guest?


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