docs: def set_fc_volume(self, port_id,
                        target_wwn, target_lun=0, boot_prio=1,
                        initiator_wwnn=None, initiator_wwpn=None):
          """Set FibreChannel volume information to configuration.
  
          :param port_id: Physical port ID.
          :param target_wwn: WWN of target.
          :param target_lun: LUN number of target.
          :param boot_prio: Boot priority of the volume. 1 indicates the highest
                 priority.
          :param initiator_wwnn: Virtual WWNN for initiator if necessary.
          :param initiator_wwpn: Virtual WWPN for initiator if necessary.
          """
          port_handler = _parse_physical_port_id(port_id)
          fc_target = elcm.FCTarget(target_wwn, target_lun)
          fc_boot = elcm.FCBoot(boot_prio=boot_prio, boot_enable=True)
          fc_boot.add_target(fc_target)
  
          port = self._find_port(port_handler)
          if port:
              port_handler.set_fc_port(port, fc_boot,
                                       wwnn=initiator_wwnn, wwpn=initiator_wwpn)
          else:
              port = port_handler.create_fc_port(fc_boot,
                                                 wwnn=initiator_wwnn,
                                                 wwpn=initiator_wwpn)
              self._add_port(port_handler, port)