QLE_CTRL_STATUS
qle_write(sc, QLE_CTRL_STATUS, QLE_CTRL_DMA_SHUTDOWN);
while (qle_read(sc, QLE_CTRL_STATUS) & QLE_CTRL_DMA_ACTIVE) {
qle_write(sc, QLE_CTRL_STATUS, QLE_CTRL_RESET | QLE_CTRL_DMA_SHUTDOWN);
if ((qle_read(sc, QLE_CTRL_STATUS) & QLE_CTRL_RESET) == 0)