MTIP_PF_SVC_THD_STOP_BIT
test_bit(MTIP_PF_SVC_THD_STOP_BIT, &port->flags))
test_bit(MTIP_PF_SVC_THD_STOP_BIT, &port->flags))
set_bit(MTIP_PF_SVC_THD_STOP_BIT, &dd->port->flags);
(1 << MTIP_PF_SVC_THD_STOP_BIT) |