Bug 2001851

Description of problem:
Unable to set the MTU for the DPDK ports.


How reproducible:


Steps to Reproduce:
nmcli con add type ovs-bridge conn.interface ovsbridge0 con-name ovs-bridge0 ovs-bridge.datapath-type netdev
nmcli con add type ovs-port conn.interface dpdkbond0 conn.master ovsbridge0 con-name ovs-dpdkbond0 ovs-port.bond-mode balance-slb 
nmcli c add type ovs-port conn.interface ovsbridge-port0 master ovsbridge0 con-name ovs-port-br
nmcli c add type ovs-interface slave-type ovs-port conn.interface ovsbridge-port0 master ovs-port-br  con-name  ovs-if-br-house 802-3-ethernet.mtu 9000
nmcli con add type ovs-interface conn.interface iface0 conn.master dpdkbond0 con-name ovs-iface0 ovs-dpdk.devargs 000:18:00.2 ovs-interface.type dpdk 802-3-ethernet.mtu 9000
nmcli con add type ovs-interface conn.interface iface1 conn.master dpdkbond0 con-name ovs-iface1 ovs-dpdk.devargs 000:18:00.3 ovs-interface.type dpdk 802-3-ethernet.mtu 9000

Actual results:


[root@dell-r640-oss-03 ~]# ip a
10: ovsbridge-port0: <BROADCAST,MULTICAST,PROMISC> mtu 9000 qdisc noop state DOWN group default qlen 1000
link/ether 8a:32:ce:b4:76:1d brd ff:ff:ff:ff:ff:ff

[root@dell-r640-oss-03 ~]# sudo ovs-appctl dpctl/show
netdev@ovs-netdev:
  lookups: hit:1129 missed:317 lost:0
  flows: 2
  port 0: ovs-netdev (tap)
  port 1: iface0 (dpdk: configured_rx_queues=1, configured_rxq_descriptors=2048, configured_tx_queues=3, configured_txq_descriptors=2048, lsc_interrupt_mode=false, mtu=1500, requested_rx_queues=1, requested_rxq_descriptors=2048, requested_tx_queues=3, requested_txq_descriptors=2048, rx_csum_offload=true, tx_tso_offload=false)
  port 2: ovsbridge-port0 (tap)
  port 3: iface1 (dpdk: configured_rx_queues=1, configured_rxq_descriptors=2048, configured_tx_queues=3, configured_txq_descriptors=2048, lsc_interrupt_mode=false, mtu=1500, requested_rx_queues=1, requested_rxq_descriptors=2048, requested_tx_queues=3, requested_txq_descriptors=2048, rx_csum_offload=true, tx_tso_offload=false)


Expected results:
The MTU of the DPDK interfaces are not set to 9000