WIP : In migration scenario, SR_IOV plug mechanism receives vif with source physical ports

[Sridhar Venkat]

This is not a bug, this is related to future work to support migration for SR-IOV VMs. In migration scenarios, SR-IOV plug mechanism receives vif and it proceeds to create vNIC. This fails due to physical ports mismatch. As there are no physical ports matching with location codes in incoming vif, no backing device could be created.

This is due to the fact that rebuild logic in nova compute, retrieves vif details from nova instance and feeds it to plug mechanism. Though neutron SR-IOV mechanism driver provides new and valid physical ports corresponding to destination host, it is ignored.

A fix is needed in SR-IOV plug mechanism to retrieve appropriate SR_IOV physical ports that corresponds to related physical network (from related neutron network) and consume.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/412474

[Drew Thorstensen (thorst)]

Is this planned to be back ported?

[Sridhar Venkat (svenkat)]

Yes. this needs to be back ported to Newton.

[Eric Fried (efried)]

The commit in comment #1 has merged, but I don't see a backport. I imagine this is ready to be marked as Fix Released at this point. Can you please confirm?

[Matthew Edmonds (edmondsw)]

at this point newton is EOL, so I think we're done here.