MTIP_PF_SVC_THD_ACTIVE_BIT
clear_bit(MTIP_PF_SVC_THD_ACTIVE_BIT, &port->flags);
set_bit(MTIP_PF_SVC_THD_ACTIVE_BIT, &port->flags);
if (test_bit(MTIP_PF_SVC_THD_ACTIVE_BIT, &port->flags) &&