Change Details

When supplying physical address directly to the DMA engine the IOAT(4) driver is incompatible with the VT-d IOMMU enabled in re-map mode. Use bus_dma(9) to obtain addresses -- translatable by the IOMMU when enabled -- to program the DMA engine.

Supplying physical address for the source and destination addresses directly to the DMA engine makes the IOAT(4) driver is incompatible with the VT-d IOMMU enabled in re-map mode. Use bus_dma(9) to obtain addresses -- translatable by the IOMMU when enabled -- instead.

When sSupplying physical address for the source and destination addresssses directly to the DMA engine makes the IOAT(4) driver is incompatible with the VT-d IOMMU enabled in re-map mode. Use bus_dma(9) to obtain addresses -- translatable by the IOMMU when enabled -- to program the DMA engineinstead.