CSW_INT_PENDING
while (AscGetChipStatus(iop_base) & CSW_INT_PENDING) {
if ((chipstat & CSW_INT_PENDING) || (int_pending)) {
#define AscIsIntPending(port) (AscGetChipStatus(port) & (CSW_INT_PENDING | CSW_SCSI_RESET_LATCH))