QLCNIC_DCB_AEN_MODE
while (test_bit(QLCNIC_DCB_AEN_MODE, &dcb->state))
clear_bit(QLCNIC_DCB_AEN_MODE, &dcb->state);
if (test_and_set_bit(QLCNIC_DCB_AEN_MODE, &dcb->state))
if (test_and_set_bit(QLCNIC_DCB_AEN_MODE, &dcb->state))