[openstack-dev] [nova][neutron] PCI pass-through SRIOV

yunhong jiang yunhong.jiang at linux.intel.com
Mon Jan 27 22:42:18 UTC 2014

On Mon, 2014-01-27 at 21:14 +0000, Jani, Nrupal wrote:
> Hi,
> There are two possibilities for the hybrid compute nodes
> -         In the first case, a compute node has two NICs,  one SRIOV
> NIC & the other NIC for the VirtIO
> -         In the 2nd case, Compute node has only one SRIOV NIC, where
> VFs are used for the VMs, either macvtap or direct assignment.  And
> the PF is used for the uplink to the linux bridge or OVS!!
> My question to the team is whether we consider both of these
> deployments or not?
Nrupal, good question. I assume if a NIC will be used for vNIC type, it
will not be reported by hypervisor as assignable PCI devices since host
will own it and the OVS is setup based on it.

Irena/Ian, please correct me. At least this is assumption in nova PCI
code, I think.


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