Failure on SR-IOV . Missing 'parent_addr

[Lenny]

Mellanox CI fails on SR-IOV hardware
1. Running nova from master commit ffa07781ab47baf096854cd6c22a3e433eab3f0d
2. Full logs http://144.76.193.39/ci-artifacts/269109/1/Nova-ML2-Sriov/
3. Reproduce:
     ./stack.sh
     neutron port-create --binding:vnic_type=direct private
     nova boot --flavor m1.small --image mellanox_eth --nic port-id=<port_id> vm1
4. port binding fails
     nova fails to find appropriate host

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/269191

[Matt Riedemann (mriedem)]

This only affects select virt drivers, so it's not critical.

[Yongli He (yongli-he)]

pci-test also affected, and same fail reason, to prevent it feedback meaningless comment, it's been disabled.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/269191
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=abcb26c121c7643201079121ca98266079edb8b8
Submitter: Jenkins
Branch: master

commit abcb26c121c7643201079121ca98266079edb8b8
Author: Nikola Dipanov <email address hidden>
Date: Tue Jan 19 13:49:47 2016 +0000

    Make sure that we always have a parent_addr set

    Since enabling PF tracking in the following commit:

    50355c4595e08f293f610da32247e405b20c1c5b

    we expect all of the PciDevice objects to have a parent_addr field
    set since we use it for matching in case the (miss-)feature of allowing
    to specify a PF address to enable all VFs was used in the whitelist.

    This caused a lazy-load on the object which always fails, so this patch
    makes sure that 'parent_addr' field is set to None on the object even if
    it was not passed in by the driver.

    Closes-bug: #1535367
    Change-Id: I0ed8dd0702287859f7809a1a1a87dafe168d6e9b

[Lenny (lennyb)]

We are still fail since PCIFilter returns 0 hosts.
http://144.76.193.39/ci-artifacts/269191/4/Nova-ML2-Sriov/