code: def delete_port(context, id):
      
      LOG.info("delete_port %s for tenant %s" % (id, context.tenant_id))
  
      port = db_api.port_find(context, id=id, scope=db_api.ONE)
      if not port:
          raise n_exc.PortNotFound(port_id=id)
  
      if 'device_id' in port:  # false is weird, but ignore that
          LOG.info("delete_port %s for tenant %s has device %s" %
                   (id, context.tenant_id, port['device_id']))
  
      backend_key = port["backend_key"]
      mac_address = netaddr.EUI(port["mac_address"]).value
      ipam_driver = _get_ipam_driver(port["network"], port=port)
      ipam_driver.deallocate_mac_address(context, mac_address)
      ipam_driver.deallocate_ips_by_port(
          context, port, ipam_reuse_after=CONF.QUARK.ipam_reuse_after)
  
      net_driver = _get_net_driver(port["network"], port=port)
      base_net_driver = _get_net_driver(port["network"])
      net_driver.delete_port(context, backend_key, device_id=port["device_id"],
                             mac_address=port["mac_address"],
                             base_net_driver=base_net_driver)
  
      with context.session.begin():
          db_api.port_delete(context, port)
docs: Delete a port.
  
      : param context: neutron api request context
      : param id: UUID representing the port to delete.