code: def post(method, hmc, uri, uri_parms, body, logon_required,
               wait_for_completion):
          
          assert wait_for_completion is True  # async not supported yet
          partition_oid = uri_parms[0]
          partition_uri = '/api/partitions/' + partition_oid
          hba_oid = uri_parms[1]
          hba_uri = '/api/partitions/' + partition_oid + '/hbas/' + hba_oid
          try:
              hba = hmc.lookup_by_uri(hba_uri)
          except KeyError:
              raise InvalidResourceError(method, uri)
          partition = hmc.lookup_by_uri(partition_uri)  # assert it exists
          cpc = partition.manager.parent
          assert cpc.dpm_enabled
          check_valid_cpc_status(method, uri, cpc)
          check_partition_status(method, uri, partition,
                                 invalid_statuses=['starting', 'stopping'])
          check_required_fields(method, uri, body, ['adapter-port-uri'])
  
          # Reflect the effect of the operation on the HBA
          new_port_uri = body['adapter-port-uri']
          hba.properties['adapter-port-uri'] = new_port_uri
docs: Operation: Reassign Storage Adapter Port (requires DPM mode).