'Finds the SC controller port object for the specified cportid.
:param cportid: The instanceID of the Dell backend controller port.
:returns: The controller port object.'

def _find_controller_port_iscsi_config(self, cportid):

    controllerport = None
    r = self.client.get(('StorageCenter/ScControllerPortIscsiConfiguration/%s' % cportid))
    if self._check_result(r):
        controllerport = self._first_result(r)
    else:
        LOG.error('_find_controller_port_iscsi_config:    Error    finding    configuration:    %s', cportid)
    return controllerport
