You have been subscribed to a public bug: Attempting to plug a VF fails with the following stack trace in the nova compute logs:
2017-08-28 17:50:34.716 2843 ERROR os_vif [req-9fe05e3e-f7ae-4b2d-be27-90d81fe0b9fd 66e36d5620c24020ac6fa6fb8e580b6c df21f729c47347b299783a4c1f83e774 - default default] Failed to plug vif VIFHostDevice(active=False,address=fa:16:3e:de:b2:7d,dev_address=0000:0b:11.0,dev_type='ethernet',has_traffic_filtering=True,id=b5858ca0-c315-4b2a-b1a9-82a5b508bf2f,network=Network(19c75cc1-a553-4d3d-9a1a-9ad010102e31),plugin='ovs',port_profile=VIFPortProfileOVSRepresentor,preserve_on_delete=True): PciDeviceNotFoundById: PCI device 0000:0b:11.0 not found 2017-08-28 17:50:34.716 2843 ERROR os_vif Traceback (most recent call last): 2017-08-28 17:50:34.716 2843 ERROR os_vif File "/usr/lib/python2.7/site-packages/os_vif/__init__.py", line 77, in plug 2017-08-28 17:50:34.716 2843 ERROR os_vif plugin.plug(vif, instance_info) 2017-08-28 17:50:34.716 2843 ERROR os_vif File "/usr/lib/python2.7/site-packages/vif_plug_ovs/ovs.py", line 191, in plug 2017-08-28 17:50:34.716 2843 ERROR os_vif self._plug_vf_passthrough(vif, instance_info) 2017-08-28 17:50:34.716 2843 ERROR os_vif File "/usr/lib/python2.7/site-packages/vif_plug_ovs/ovs.py", line 163, in _plug_vf_passthrough 2017-08-28 17:50:34.716 2843 ERROR os_vif pci_slot, pf_interface=True, switchdev=True) 2017-08-28 17:50:34.716 2843 ERROR os_vif File "/usr/lib/python2.7/site-packages/vif_plug_ovs/linux_net.py", line 373, in get_ifname_by_pci_address 2017-08-28 17:50:34.716 2843 ERROR os_vif raise exception.PciDeviceNotFoundById(id=pci_addr) 2017-08-28 17:50:34.716 2843 ERROR os_vif PciDeviceNotFoundById: PCI device 0000:0b:11.0 not found 2017-08-28 17:50:34.716 2843 ERROR os_vif It appears that patch https://review.openstack.org/#/c/484051/ altered get_ifname_by_pci_address() always run a new helper function _is_switchdev() (it appears that it is assumed that switchdev should always be True). This causes plugging VFs on systems with drivers that do not support a readable phys_switch_id to fail. I ran the code interactively on the host system to determine the actual exception: >>> f = open('/sys/class/net/enp11s17/phys_switch_id', 'r') >>> print f.readline() Traceback (most recent call last): File "<stdin>", line 1, in <module> IOError: [Errno 95] Operation not supported >From what I can tell, this should also cause plugging to fail on systems that have no phys_switch_id file at all. ** Affects: neutron Importance: Medium Status: Triaged -- Plugging VFs no longer works without a readable phys_switch_id https://bugs.launchpad.net/bugs/1713590 You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
