Description of problem:

The VM was not able to reach the external network as prompting an error below:

2020-08-10T18:28:48.892Z|00331|dpdk|ERR|Invalid port_id=128
2020-08-10T18:28:48.903Z|00332|dpdk|ERR|EAL: Driver cannot attach the device (0000:02:03.0)
2020-08-10T18:28:48.903Z|00333|dpdk|ERR|EAL: Failed to attach device on primary process
2020-08-10T18:28:48.903Z|00334|netdev_dpdk|WARN|Error attaching device '0000:02:03.0' to DPDK
2020-08-10T18:28:48.903Z|00335|netdev|WARN|dpdk1: could not set configuration 

This is most likely due to the e1000 is not enabled in downstream jobs.

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

RHOSP16.1

openvswitch2.13-2.13.0-39.el8fdp.x86_64
network-scripts-openvswitch2.13-2.13.0-39.el8fdp.x86_64
openvswitch-selinux-extra-policy-1.0-22.el8fdp.noarch
rhosp-openvswitch-2.13-8.el8ost.noarch

How reproducible:
Always

Steps to Reproduce:
1.deploy openstack with e1000 nic rather than virtio
2. To be able to run ovs-dpdk in a nested virt env we enable the iommu to allow vfio-cpi to work 
using 
 --qemu-commandline='-machine kernel-irqchip=split -device
   > intel-iommu,intremap=on,caching-mode=on' --machine=q35"


Actual results:

Error attaching device '0000:02:03.0' to DPDK
Expected results:
Attached device '0000:02:03.0' to DPDK

Additional info: