Description of problem:

nova device role tagging works well for SRIOV PF or OVS-ML2 but doesn't work with SRIOV PF.

Version-Release number of selected component (if applicable): RHOSP13.z7

How reproducible: 100%

Steps to Reproduce:

nova boot TRex --flavor vnfc --image testpmd --nic net-id=8fe3eb35-4eb4-4a9a-9eaf-b97708fef451,tag=mgmt --config-drive True --key-name undercloud --nic port-id=6dd3b82f-ce2f-44dd-acd0-62b922a7281a,tag=east

openstack port show 6dd3b82f-ce2f-44dd-acd0-62b922a7281a
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in the VM, we don't see the associated metadata to the SRIOV PF device

[root@trex ~]# mount /dev/cdrom /mnt/
mount: /dev/sr0 is write-protected, mounting read-only
[root@trex ~]# cd /mnt/openstack/latest/
[root@trex latest]# jq . meta_data.json
{
"admin_pass": "VBtGjJBSW6AF",
"random_seed": "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",
"uuid": "373fb960-27f1-4226-a561-b9c1ccdf48af",
"availability_zone": "nova",
"keys": [

{ "data": "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDS1atbBB05pfaM7lOs0VUBJPNrlx8xzzlOTBH49v//p2aVWOTN9F3nzCbM1uLthW0wuzQAO5FQy3QLj+Xfn6+k8CaQnm2vB7gwK8uxb7dglHzKywOAPjHYQl/AQA9jrbmbY2bIRZHKV0dJ06gv4tf0BfvCE4gaLFIAvfSzX9G8muGWqAyoEKwEYS8Es7kWf/Dq2LonUpsahAP7WB5f5GNPQGKhH30SnaNqaGhB75QSbSUPA6Mdt01fdwkd4TKjaM/P/ty7GnMbx9trQdgkvym08alYJC3WpAdEnaCJSDuidUSiDgEfHxkeOQxvIBXnxZyWsg95QZRXEQjcZpmmqQGD stack@undercloud13.redhat.local\n", "type": "ssh", "name": "undercloud" }

],
"hostname": "trex",
"launch_index": 0,
"devices": [

{ "bus": "pci", "mac": "fa:16:3e:21:8a:d7", "tags": [ "mgmt" ], "type": "nic", "address": "0000:00:03.0" }

],
"public_keys":

{ "undercloud": "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDS1atbBB05pfaM7lOs0VUBJPNrlx8xzzlOTBH49v//p2aVWOTN9F3nzCbM1uLthW0wuzQAO5FQy3QLj+Xfn6+k8CaQnm2vB7gwK8uxb7dglHzKywOAPjHYQl/AQA9jrbmbY2bIRZHKV0dJ06gv4tf0BfvCE4gaLFIAvfSzX9G8muGWqAyoEKwEYS8Es7kWf/Dq2LonUpsahAP7WB5f5GNPQGKhH30SnaNqaGhB75QSbSUPA6Mdt01fdwkd4TKjaM/P/ty7GnMbx9trQdgkvym08alYJC3WpAdEnaCJSDuidUSiDgEfHxkeOQxvIBXnxZyWsg95QZRXEQjcZpmmqQGD stack@undercloud13.redhat.local\n" }

,
"project_id": "d06ebdf349f84b3e91a98700d726c070",
"name": "TRex"
}

Expected results:
Get the metadata corresponding to SRIOV PF ports