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[Bug 1859976] [NEW] Removing smart_nic port in openstack will try to delete representor port

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Public bug reported:

When remove smart_nic port ovs agent it will remove the port from the
integration bridge and also will try to remove net device as the port is
defined as VIFOpenvswitch device in ovs_neuton_agent

DEBUG oslo_concurrency.processutils [^[[00;36m-] [[01;35mCMD "ovs-vsctl --timeout=120 --oneline --format=json --db=tcp:127.0.0.1:6640 -- --if-exists del-port br-int pf0hpf" returned: 0 in 0.109s[[00m [[00;33m{{(pid=50) execute /usr/lib/python2.7/site-packages/oslo_concurrency/processutils.py:409}}[[00m
DEBUG oslo.privsep.daemon [^[[00;36m-] [[01;35mprivsep: reply281473324162416: (4, '')[[00m [[00;33m{{(pid=50) call_back /usr/lib/python2.7/site-packages/oslo_privsep/daemon.py:475}}[[00m
DEBUG os_vif.internal.ip.linux.impl_pyroute2 [^[[00;36m-] [[01;35mpyroute2 command del, arguments {'index': 9}[[00m [[00;33m{{(pid=50) _ip_link /usr/lib/python2.7/site-packages/os_vif/internal/ip/linux/impl_pyroute2.py:31}}[[00m
DEBUG oslo.privsep.daemon [^[[00;36m-] [[01;35mprivsep: Exception during request281473324162416: (95, 'Operation not supported')[[00m [[00;33m{{(pid=50) _process_cmd /usr/lib/python2.7/site-packages/oslo_privsep/daemon.py:454}}[[00m
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/oslo_privsep/daemon.py", line 449, in _process_cmd
ret = func(f_args, **f_kwargs)
File "/usr/lib/python2.7/site-packages/oslo_privsep/priv_context.py", line 247, in _wrap
return func(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/vif_plug_ovs/linux_net.py", line 69, in delete_net_dev
ip_lib.delete(dev, check_exit_code=[0, 2, 254])
File "/usr/lib/python2.7/site-packages/os_vif/internal/ip/linux/impl_pyroute2.py", line 114, in delete
return self._ip_link(ip, 'del', check_exit_code, *{'index': idx})
File "/usr/lib/python2.7/site-packages/os_vif/internal/ip/linux/impl_pyroute2.py", line 38, in _ip_link
ctx.reraise = False
File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in exit
self.force_reraise()
File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise
six.reraise(self.type, self.value, self.tb)
File "/usr/lib/python2.7/site-packages/os_vif/internal/ip/linux/impl_pyroute2.py", line 32, in ip_link
return ip.link(command, **kwargs)
File "/usr/lib/python2.7/site-packages/pyroute2/iproute/linux.py", line 1163, in link
msg_flags=msg_flags)
File "/usr/lib/python2.7/site-packages/pyroute2/netlink/nlsocket.py", line 373, in nlm_request
return tuple(self._genlm_request(*argv, **kwarg))
File "/usr/lib/python2.7/site-packages/pyroute2/netlink/nlsocket.py", line 864, in nlm_request
callback=callback):
File "/usr/lib/python2.7/site-packages/pyroute2/netlink/nlsocket.py", line 376, in get
return tuple(self._genlm_get(*argv, **kwarg))
File "/usr/lib/python2.7/site-packages/pyroute2/netlink/nlsocket.py", line 701, in get
raise msg['header']['error']
NetlinkError: (95, 'Operation not supported')
DEBUG oslo.privsep.daemon [^[[00;36m-] [[01;35mprivsep: reply281473324162416: (5, 'pyroute2.netlink.exceptions.NetlinkError', (95, 'Operation not supported'))[[00m [[00;33m{{(pid=50) _call_back /usr/lib/python2.7/site-packages/oslo_privsep/daemon.py:475}}[[00m
ERROR os_vif [^[[01;36mNone req-73d389c8-7dd3-47be-b136-ed247b6e7e47 [[00;36mNone None] ^[[01;35mFailed to unplug vif VIFOpenVSwitch(active=,address=50:6b:4b:34:a5:3a,bridge_name=,has_traffic_filtering=,id=,network=Network(UNKNOWN),plugin='ovs',port_profile=VIFPortProfileOpenVSwitch,preserve_on_delete=,vif_name='pf0hpf')[[00m: NetlinkError: (95, 'Operation not supported')
ERROR os_vif [[01;35m[[00mTraceback (most recent call last):
ERROR os_vif [[01;35m[[00m File "/usr/lib/python2.7/site-packages/os_vif/_init__.py", line 110, in unplug
ERROR os_vif [[01;35m[[00m plugin.unplug(vif, instance_info)
ERROR os_vif [[01;35m[[00m File "/usr/lib/python2.7/site-packages/vif_plug_ovs/ovs.py", line 363, in unplug
ERROR os_vif [[01;35m[[00m self._unplug_vif_generic(vif, instance_info)
ERROR os_vif [[01;35m[[00m File "/usr/lib/python2.7/site-packages/vif_plug_ovs/ovs.py", line 330, in _unplug_vif_generic
ERROR os_vif [[01;35m[[00m self.ovsdb.delete_ovs_vif_port(vif.network.bridge, vif.vif_name)
ERROR os_vif [[01;35m[[00m File "/usr/lib/python2.7/site-packages/vif_plug_ovs/ovsdb/ovsdb_lib.py", line 115, in delete_ovs_vif_port
ERROR os_vif [[01;35m[[00m linux_net.delete_net_dev(dev)
ERROR os_vif [[01;35m[[00m File "/usr/lib/python2.7/site-packages/oslo_privsep/priv_context.py", line 245, in _wrap
ERROR os_vif [[01;35m[[00m return self.channel.remote_call(name, args, kwargs)
ERROR os_vif [[01;35m[[00m File "/usr/lib/python2.7/site-packages/oslo_privsep/daemon.py", line 204, in remote_call
ERROR os_vif [[01;35m[[00m raise exc_type(*result2)
ERROR os_vif [[01;35m[[00mNetlinkError: (95, 'Operation not supported')
ERROR os_vif [[01;35m[[00m
ERROR neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [^[[01;36mNone req-73d389c8-7dd3-47be-b136-ed247b6e7e47 [[00;36mNone None] ^[[01;35mFailed to treat smart-nic port:99abc6d3-a2f4-460f-9d9b-fd2f016b9e95 , error:Failed to unplug VIF VIFOpenVSwitch(active=,address=50:6b:4b:34:a5:3a,bridge_name=,has_traffic_filtering=,id=,network=Network(UNKNOWN),plugin='ovs',port_profile=VIFPortProfileOpenVSwitch,preserve_on_delete=,vif_name='pf0hpf'). Got error: (95, 'Operation not supported')[[00m: UnplugException: Failed to unplug VIF VIFOpenVSwitch(active=,address=50:6b:4b:34:a5:3a,bridge_name=,has_traffic_filtering=,id=,network=Network(UNKNOWN),plugin='ovs',port_profile=VIFPortProfileOpenVSwitch,preserve_on_delete=,vif_name='pf0hpf'). Got error: (95, 'Operation not supported')

** Affects: neutron
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1859976

Title:
  Removing smart_nic port in openstack will try to delete representor
  port

Status in neutron:
  New

Bug description:
  When remove smart_nic port ovs agent it will remove the port from the
  integration bridge and also will try to remove net device as the port
  is defined as VIFOpenvswitch device in ovs_neuton_agent

  DEBUG oslo_concurrency.processutils [^[[00;36m-] [[01;35mCMD "ovs-vsctl --timeout=120 --oneline --format=json --db=tcp:127.0.0.1:6640 -- --if-exists del-port br-int pf0hpf" returned: 0 in 0.109s[[00m [[00;33m{{(pid=50) execute /usr/lib/python2.7/site-packages/oslo_concurrency/processutils.py:409}}[[00m
  DEBUG oslo.privsep.daemon [^[[00;36m-] [[01;35mprivsep: reply281473324162416: (4, '')[[00m [[00;33m{{(pid=50) call_back /usr/lib/python2.7/site-packages/oslo_privsep/daemon.py:475}}[[00m
  DEBUG os_vif.internal.ip.linux.impl_pyroute2 [^[[00;36m-] [[01;35mpyroute2 command del, arguments {'index': 9}[[00m [[00;33m{{(pid=50) _ip_link /usr/lib/python2.7/site-packages/os_vif/internal/ip/linux/impl_pyroute2.py:31}}[[00m
  DEBUG oslo.privsep.daemon [^[[00;36m-] [[01;35mprivsep: Exception during request281473324162416: (95, 'Operation not supported')[[00m [[00;33m{{(pid=50) _process_cmd /usr/lib/python2.7/site-packages/oslo_privsep/daemon.py:454}}[[00m
  Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/oslo_privsep/daemon.py", line 449, in _process_cmd
  ret = func(f_args, **f_kwargs)
  File "/usr/lib/python2.7/site-packages/oslo_privsep/priv_context.py", line 247, in _wrap
  return func(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/vif_plug_ovs/linux_net.py", line 69, in delete_net_dev
  ip_lib.delete(dev, check_exit_code=[0, 2, 254])
  File "/usr/lib/python2.7/site-packages/os_vif/internal/ip/linux/impl_pyroute2.py", line 114, in delete
  return self._ip_link(ip, 'del', check_exit_code, *{'index': idx})
  File "/usr/lib/python2.7/site-packages/os_vif/internal/ip/linux/impl_pyroute2.py", line 38, in _ip_link
  ctx.reraise = False
  File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in exit
  self.force_reraise()
  File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise
  six.reraise(self.type, self.value, self.tb)
  File "/usr/lib/python2.7/site-packages/os_vif/internal/ip/linux/impl_pyroute2.py", line 32, in ip_link
  return ip.link(command, **kwargs)
  File "/usr/lib/python2.7/site-packages/pyroute2/iproute/linux.py", line 1163, in link
  msg_flags=msg_flags)
  File "/usr/lib/python2.7/site-packages/pyroute2/netlink/nlsocket.py", line 373, in nlm_request
  return tuple(self._genlm_request(*argv, **kwarg))
  File "/usr/lib/python2.7/site-packages/pyroute2/netlink/nlsocket.py", line 864, in nlm_request
  callback=callback):
  File "/usr/lib/python2.7/site-packages/pyroute2/netlink/nlsocket.py", line 376, in get
  return tuple(self._genlm_get(*argv, **kwarg))
  File "/usr/lib/python2.7/site-packages/pyroute2/netlink/nlsocket.py", line 701, in get
  raise msg['header']['error']
  NetlinkError: (95, 'Operation not supported')
  DEBUG oslo.privsep.daemon [^[[00;36m-] [[01;35mprivsep: reply281473324162416: (5, 'pyroute2.netlink.exceptions.NetlinkError', (95, 'Operation not supported'))[[00m [[00;33m{{(pid=50) _call_back /usr/lib/python2.7/site-packages/oslo_privsep/daemon.py:475}}[[00m
  ERROR os_vif [^[[01;36mNone req-73d389c8-7dd3-47be-b136-ed247b6e7e47 [[00;36mNone None] ^[[01;35mFailed to unplug vif VIFOpenVSwitch(active=,address=50:6b:4b:34:a5:3a,bridge_name=,has_traffic_filtering=,id=,network=Network(UNKNOWN),plugin='ovs',port_profile=VIFPortProfileOpenVSwitch,preserve_on_delete=,vif_name='pf0hpf')[[00m: NetlinkError: (95, 'Operation not supported')
  ERROR os_vif [[01;35m[[00mTraceback (most recent call last):
  ERROR os_vif [[01;35m[[00m File "/usr/lib/python2.7/site-packages/os_vif/_init__.py", line 110, in unplug
  ERROR os_vif [[01;35m[[00m plugin.unplug(vif, instance_info)
  ERROR os_vif [[01;35m[[00m File "/usr/lib/python2.7/site-packages/vif_plug_ovs/ovs.py", line 363, in unplug
  ERROR os_vif [[01;35m[[00m self._unplug_vif_generic(vif, instance_info)
  ERROR os_vif [[01;35m[[00m File "/usr/lib/python2.7/site-packages/vif_plug_ovs/ovs.py", line 330, in _unplug_vif_generic
  ERROR os_vif [[01;35m[[00m self.ovsdb.delete_ovs_vif_port(vif.network.bridge, vif.vif_name)
  ERROR os_vif [[01;35m[[00m File "/usr/lib/python2.7/site-packages/vif_plug_ovs/ovsdb/ovsdb_lib.py", line 115, in delete_ovs_vif_port
  ERROR os_vif [[01;35m[[00m linux_net.delete_net_dev(dev)
  ERROR os_vif [[01;35m[[00m File "/usr/lib/python2.7/site-packages/oslo_privsep/priv_context.py", line 245, in _wrap
  ERROR os_vif [[01;35m[[00m return self.channel.remote_call(name, args, kwargs)
  ERROR os_vif [[01;35m[[00m File "/usr/lib/python2.7/site-packages/oslo_privsep/daemon.py", line 204, in remote_call
  ERROR os_vif [[01;35m[[00m raise exc_type(*result2)
  ERROR os_vif [[01;35m[[00mNetlinkError: (95, 'Operation not supported')
  ERROR os_vif [[01;35m[[00m
  ERROR neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [^[[01;36mNone req-73d389c8-7dd3-47be-b136-ed247b6e7e47 [[00;36mNone None] ^[[01;35mFailed to treat smart-nic port:99abc6d3-a2f4-460f-9d9b-fd2f016b9e95 , error:Failed to unplug VIF VIFOpenVSwitch(active=,address=50:6b:4b:34:a5:3a,bridge_name=,has_traffic_filtering=,id=,network=Network(UNKNOWN),plugin='ovs',port_profile=VIFPortProfileOpenVSwitch,preserve_on_delete=,vif_name='pf0hpf'). Got error: (95, 'Operation not supported')[[00m: UnplugException: Failed to unplug VIF VIFOpenVSwitch(active=,address=50:6b:4b:34:a5:3a,bridge_name=,has_traffic_filtering=,id=,network=Network(UNKNOWN),plugin='ovs',port_profile=VIFPortProfileOpenVSwitch,preserve_on_delete=,vif_name='pf0hpf'). Got error: (95, 'Operation not supported')

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