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[Frode Nordahl <1975743@xxxxxxxxxxxxxxxxxx>]

** Changed in: neutron
       Status: New => Confirmed

** Changed in: nova
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1975743

Title:
  ML2 OVN - Creating an instance with hardware offloaded port is broken

Status in neutron:
  In Progress
Status in OpenStack Compute (nova):
  Invalid

Bug description:
  OpenStack Release: Yoga
  Platform: Ubuntu focal

  Creating an instance with vnic-type ‘direct’ port and ‘switchdev’ binding-profile is failing over the following validation error:
  ```
  2022-05-25 19:13:40.331 125269 DEBUG neutron.api.v2.base [req-504a0204-6f1a-46ae-8b95-dcfdf2692f91 b2a31335e63b4dd391cc3e6bf4600fe1 - - 654b9b803e6a4a68b31676c16973e3cc 654b9b803e6a4a68b31676c16973e3cc] Request body: {'port': {'device_id': 'd46aef48-e42e-49c8-af9f-a83768747b4f', 'device_owner': 'compute:nova', 'binding:profile': {'capabilities': ['switchdev'], 'pci_vendor_info': '15b3:101e', 'pci_slot': '0000:08:03.2', 'physical_network': None, 'card_serial_number': 'MT2034X11488', 'pf_mac_address': '04:3f:72:9e:0b:a1', 'vf_num': 7}, 'binding:host_id': 'node3.maas', 'dns_name': 'vm1'}} prepare_request_body /usr/lib/python3/dist-packages/neutron/api/v2/base.py:729

  
  2022-05-25 19:13:40.429 125269 DEBUG neutron_lib.callbacks.manager [req-504a0204-6f1a-46ae-8b95-dcfdf2692f91 b2a31335e63b4dd391cc3e6bf4600fe1 - - 654b9b803e6a4a68b31676c16973e3cc 654b9b803e6a4a68b31676c16973e3cc] Publish callbacks ['neutron.plugins.ml2.plugin.SecurityGroupDbMixin._ensure_default_security_group_handler-1311372', 'neutron.services.ovn_l3.plugin.OVNL3RouterPlugin._port_update-8735219071964'] for port (0f1e4e9c-68ef-4b38-a3bc-68e624bca6c7), before_update _notify_loop /usr/lib/python3/dist-packages/neutron_lib/callbacks/manager.py:176
  2022-05-25 19:13:41.221 125269 DEBUG neutron.notifiers.nova [req-504a0204-6f1a-46ae-8b95-dcfdf2692f91 b2a31335e63b4dd391cc3e6bf4600fe1 - - 654b9b803e6a4a68b31676c16973e3cc 654b9b803e6a4a68b31676c16973e3cc] Ignoring state change previous_port_status: DOWN current_port_status: DOWN port_id 0f1e4e9c-68ef-4b38-a3bc-68e624bca6c7 record_port_status_changed /usr/lib/python3/dist-packages/neutron/notifiers/nova.py:233
  2022-05-25 19:13:41.229 125269 DEBUG neutron_lib.callbacks.manager [req-504a0204-6f1a-46ae-8b95-dcfdf2692f91 b2a31335e63b4dd391cc3e6bf4600fe1 - - 654b9b803e6a4a68b31676c16973e3cc 654b9b803e6a4a68b31676c16973e3cc] Publish callbacks [] for port (0f1e4e9c-68ef-4b38-a3bc-68e624bca6c7), precommit_update _notify_loop /usr/lib/python3/dist-packages/neutron_lib/callbacks/manager.py:176

  
  2022-05-25 19:13:41.229 125269 ERROR neutron.plugins.ml2.managers [req-504a0204-6f1a-46ae-8b95-dcfdf2692f91 b2a31335e63b4dd391cc3e6bf4600fe1 - - 654b9b803e6a4a68b31676c16973e3cc 654b9b803e6a4a68b31676c16973e3cc] Mechanism driver 'ovn' failed in update_port_precommit: neutron_lib.exceptions.InvalidInput: Invalid input for operation: Invalid binding:profile. too many parameters.
  2022-05-25 19:13:41.229 125269 ERROR neutron.plugins.ml2.managers Traceback (most recent call last):
  2022-05-25 19:13:41.229 125269 ERROR neutron.plugins.ml2.managers   File "/usr/lib/python3/dist-packages/neutron/plugins/ml2/managers.py", line 482, in _call_on_drivers
  2022-05-25 19:13:41.229 125269 ERROR neutron.plugins.ml2.managers     getattr(driver.obj, method_name)(context)
  2022-05-25 19:13:41.229 125269 ERROR neutron.plugins.ml2.managers   File "/usr/lib/python3/dist-packages/neutron/plugins/ml2/drivers/ovn/mech_driver/mech_driver.py", line 792, in update_port_precommit
  2022-05-25 19:13:41.229 125269 ERROR neutron.plugins.ml2.managers     ovn_utils.validate_and_get_data_from_binding_profile(port)
  2022-05-25 19:13:41.229 125269 ERROR neutron.plugins.ml2.managers   File "/usr/lib/python3/dist-packages/neutron/common/ovn/utils.py", line 266, in validate_and_get_data_from_binding_profile
  2022-05-25 19:13:41.229 125269 ERROR neutron.plugins.ml2.managers     raise n_exc.InvalidInput(error_message=msg)
  2022-05-25 19:13:41.229 125269 ERROR neutron.plugins.ml2.managers neutron_lib.exceptions.InvalidInput: Invalid input for operation: Invalid binding:profile. too many parameters.
  2022-05-25 19:13:41.229 125269 ERROR neutron.plugins.ml2.managers 
  ```

  Seems like the issue is related to the commit from: 
  https://review.opendev.org/c/openstack/neutron/+/818420

  
  To reproduce:
  https://docs.openstack.org/project-deploy-guide/charm-deployment-guide/latest/app-ovn.html

  1. Prepare a setup with SR-IOV adjusted for OVN HW Offload
  2. Create a port with switchdev capabilities

  $ openstack port create direct_overlay2 --vnic-type=direct --network
  gen_data --binding-profile '{"capabilities":["switchdev"]}'
  --security-group my_policy

  3. Create an instance

  $ openstack server create --key-name bastion --flavor d1.demo --image
  ubuntu --port direct_overlay1 vm1 --availability-zone nova:node3.maas

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