[openstack-dev] [nova] [neutron] PCI pass-through network support

Chris Friesen chris.friesen at windriver.com
Tue Oct 29 21:28:53 UTC 2013


On 10/29/2013 03:23 PM, Henry Gessau wrote:
> On Tue, Oct 29, at 4:31 pm, Jiang, Yunhong <yunhong.jiang at intel.com> wrote:

>> As to assign entire PCI device to a guest, that should be ok since
>> usually PF and VF has different device ID, the tricky thing is, at least
>> for some PCI devices, you can't configure that some NIC will have SR-IOV
>> enabled while others not.
>
> Thanks for the warning. :) Perhaps the cloud admin might plug in an extra
> NIC in just a few nodes (one or two per rack, maybe) for the purpose of
> running service VMs there. Again, just speculating. I don't know how hard it
> is to manage non-homogenous nodes.

Perhaps those nodes could be identified using a host-aggregate with 
suitable metadata?

Chris




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