SMC_ACK_INT
SMC_ACK_INT(lp, IM_TX_INT);
SMC_ACK_INT(lp, IM_RX_OVRN_INT);
SMC_ACK_INT(lp, IM_MDINT);
SMC_ACK_INT(lp, IM_ERCV_INT);
SMC_ACK_INT(lp, IM_ALLOC_INT);