BGE_RX_CPU_EVENT
CSR_WRITE_4(sc, BGE_RX_CPU_EVENT,
CSR_READ_4(sc, BGE_RX_CPU_EVENT) | BGE_RX_CPU_DRV_EVENT);
if (!(CSR_READ_4(sc, BGE_RX_CPU_EVENT) &
CSR_WRITE_4(sc, BGE_RX_CPU_EVENT,
CSR_READ_4(sc, BGE_RX_CPU_EVENT) |