DMADone
if (status & DMADone) {
(vp->bus_master ? DMADone : 0), ioaddr + EL3_CMD);
| (vp->bus_master ? DMADone : 0) | UpComplete | DownComplete,
(vp->bus_master ? DMADone : 0);
| (vp->bus_master ? DMADone : 0) | UpComplete | DownComplete;
if (status & DMADone) {