Cannot shut down bond members / ports with OVS DPDK 2.9

Issue

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Cannot shut down bond members / ports with OVS DPDK 2.9

With IXGBE, there seems to be no way to shut down a bond member (or NIC) from OVS DPDK:

ovs-ofctl mod-port br-link0 dpdk10 down

While this removes the LACP configuration from the port and reports it as down in OVS:

[root@overcloud-computeovsdpdk-0 ~]# ovs-ofctl mod-port br-link0 dpdk10 down
[root@overcloud-computeovsdpdk-0 ~]# ovs-appctl bond/show
---- dpdkbond0 ----
bond_mode: balance-tcp
bond may use recirculation: yes, Recirc-ID : 911
bond-hash-basis: 0
updelay: 0 ms
downdelay: 0 ms
next rebalance: 1484 ms
lacp_status: negotiated
lacp_fallback_ab: false
active slave mac: aa:36:aa:e3:aa:ca(dpdk11)

slave dpdk10: disabled
    may_enable: false

slave dpdk11: enabled
    active slave
    may_enable: true
    hash 42: 1 kB load

On the switch, the port is up:

S4048-ON-sw(conf-if-te-1/19)#do show int status | grep 1/19
Te 1/19                           Up     10000 Mbit   Full   --

And only the LACP config is removed:

Nov 1 23:48:17: %STKUNIT1-M:CP %LACP-5-PORT-GROUPED: PortChannel-001-Grouped: Interface Te 1/19 joined port-channel 1.
50w2d1h : SUPASSIST_EVT: Notified event, ID: 0x35000f
Nov 1 23:47:44: %STKUNIT1-M:CP %LACP-5-PORT-UNGROUPED: PortChannel-001-Ungrouped: Interface Te 1/19 exited port-channel 1.

The same is true for ovs-appctl netdev-dpdk/set-admin-state dpdk10 down:

[root@overcloud-computeovsdpdk-0 ~]# ovs-appctl netdev-dpdk/set-admin-state dpdk10 down
OK
[root@overcloud-computeovsdpdk-0 ~]# ovs-appctl bond/show
---- dpdkbond0 ----
bond_mode: balance-tcp
bond may use recirculation: yes, Recirc-ID : 911
bond-hash-basis: 0
updelay: 0 ms
downdelay: 0 ms
next rebalance: 6190 ms
lacp_status: negotiated
lacp_fallback_ab: false
active slave mac: aa:36:aa:e3:aa:ca(dpdk11)

slave dpdk10: disabled
    may_enable: false

slave dpdk11: enabled
    active slave
    may_enable: true
    hash 42: 1 kB load

But the port remains up on the switch:

S4048-ON-sw(conf-if-te-1/19)#do show int status | grep 1/19
Te 1/19                           Up     10000 Mbit   Full   --
S4048-ON-sw(conf-if-te-1/19)#