ioat_get_active
return ((1 << ioat->ring_size_order) - ioat_get_active(ioat) - 1);
if (ioat_get_active(ioat) > 0)
while (ioat_get_active(ioat) > 0)
KASSERT(ioat_get_active(ioat) == 0, ("active after quiesce"));
while (ioat_get_active(ioat) > 0)
static inline uint32_t ioat_get_active(struct ioat_softc *ioat);
ioat->chan_idx, ioat->head, ioat->tail, ioat_get_active(ioat));
while (ioat_get_active(ioat) > 0) {
ioat->chan_idx, ioat->head, ioat->tail, ioat_get_active(ioat));