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rx_queue support for OVS-DPDK is not available in NM.
In ifcfg model, rx_queue could be configured via OVS_EXTRA flags and openstack uses this method to configure multiqueues.

Expected results:
NM shall provide a method for rx_queue configuration

Hi

Sample usage by openstack [1].

A sample ifcfg-dpdk-port

DEVICE=dpdk-link1-port
ONBOOT=yes
HOTPLUG=no
NM_CONTROLLED=no
PEERDNS=no
DEVICETYPE=ovs
TYPE=OVSDPDKPort
OVS_BRIDGE=br-link1
RX_QUEUE=2
OVS_EXTRA="set Interface $DEVICE options:n_rxq=$RX_QUEUE options:dpdk-devargs=0000:18:00.2"

I don't think external-ids could be used for the same. We would need similar support in NM to support the above use case.
This feature is required for OSP17 which would use RHEl 9

[1] https://github.com/openstack/os-net-config/blob/012b58ccc1623945c4428e82eec80b2f3f22d6b7/etc/os-net-config/samples/ovs_dpdk.yaml#L24

NMCI test case:
https://gitlab.freedesktop.org/NetworkManager/NetworkManager-ci/-/merge_requests/911

The add_dpdk_port_n_rxq test is running in NMCI.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (NetworkManager bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHEA-2022:1985