Reviewed:  https://review.opendev.org/c/openstack/neutron/+/843778
Committed: https://opendev.org/openstack/neutron/commit/63cdd1a5b9d982dcaee0d632225b3f7ff1fbf88c
Submitter: "Zuul (22348)"
Branch:    stable/ussuri

commit 63cdd1a5b9d982dcaee0d632225b3f7ff1fbf88c
Author: yatinkarel <email address hidden>
Date:   Thu May 26 14:57:48 2022 +0530

    Revert "Use Port_Binding up column to set Neutron port status"
    
    This reverts commit 37d4195b516f12b683b774f0561561b172dd15c6.
    Conflicts:
            neutron/common/ovn/constants.py
            neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/ovsdb_monitor.py
    
    Also revert below 2 commits which were added on
    top of the parent commit:-
    
    Revert "Ensure subports transition to DOWN"
    This reverts commit 5e036a6b281e4331f396473e299b26b2537d5322.
    
    Revert "Ensure only the right events are processed"
    This reverts commit 553f462656c2b7ee1e9be6b1e4e7c446c12cc9aa.
    
    Reason for revert: These patches have caused couple of issues[1][2][3].
    [1][2] are same issue just one is seen in c8/c9-stream and other in
    rhel8 and both contains much info about the issue.
    [3] is currently happening only in rhel8/rhel9 as this issue is visible
    only with the patch in revert and ovn-2021>=21.12.0-55(fix of [4]) which
    is not yet available in c8/c9-stream.
    
    [1][2] happens randomly as the patch under revert has moved the
    events to SB DB which made a known OVN issue[5] occur more often as in
    that issue SB DB Event queue floods with too many events of
    PortBindingChassisEvent making other events like PortBindingUpdateUpEvent
    to wait much longer and hence triggering VirtualInterfaceCreateException.
    
    NB DB Event queue is different and hence with revert we are trying to
    lower the side effect of the OVN issue[5].
    
    This patch can be re reverted once [3] and [5] are fixed.
    
    [1] https://bugs.launchpad.net/tripleo/+bug/1964940/
    [2] https://bugzilla.redhat.com/show_bug.cgi?id=2081631
    [3] https://bugzilla.redhat.com/show_bug.cgi?id=2090604
    [4] https://bugzilla.redhat.com/show_bug.cgi?id=2037433
    [5] https://bugzilla.redhat.com/show_bug.cgi?id=1974898
    
    Closes-Bug: #1964940
    Closes-Bug: rhbz#2081631
    Closes-Bug: rhbz#2090604
    Related-Bug: rhbz#2037433
    Related-Bug: rhbz#1974898
    Change-Id: I159460be27f2c5f105be4b2865ef84aeb9a00094
    (cherry picked from commit e6d27be4747eb4573dcc5c0e1e7ac7550d20f951)
    (cherry picked from commit 3a11ab74402cde842461569515c39c441555f348)
    (cherry picked from commit 4c5bd288466f8f72e95deca204d08246d9aa9549)
    Conflicts: neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/ovsdb_monitor.py
            neutron/tests/functional/plugins/ml2/drivers/ovn/mech_driver/ovsdb/test_ovsdb_monitor.py
    (cherry picked from commit 1648d40fe3e43f4ea2ce515e73c6fc891e248ef6)
    Conflicts: neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/ovsdb_monitor.py
            neutron/tests/functional/plugins/ml2/drivers/ovn/mech_driver/ovsdb/test_ovsdb_monitor.py
            neutron/tests/unit/plugins/ml2/drivers/ovn/mech_driver/ovsdb/test_ovsdb_monitor.py
    (cherry picked from commit 3034b0403d95a163f1d31274bd7327cce6dd71bd)
    Conflicts: neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/ovsdb_monitor.py
            neutron/tests/unit/plugins/ml2/drivers/ovn/mech_driver/ovsdb/test_ovsdb_monitor.py