MPI2_HOST_INTERRUPT_STATUS_OFFSET
lmrc_write_reg(lmrc, MPI2_HOST_INTERRUPT_STATUS_OFFSET, 0);
(void) lmrc_read_reg(lmrc, MPI2_HOST_INTERRUPT_STATUS_OFFSET);
status = lmrc_read_reg(lmrc, MPI2_HOST_INTERRUPT_STATUS_OFFSET);