microsoft standard sata ahci controller driver windows 10

The device or host is informed of the 64-bit DMA buffer identifier/descriptor at some previous time by an implementation specific mechanism such as a command issued to or as defined in a specification. The specific implementation for the memory descriptor abstraction is not defined. The FIS allows the actual host memory regions to be abstracted (depending on implementation) by having memory regions referenced via a base memory descriptor representing a memory region that the host has granted the device access to. This FIS is used to request the host or device to program its DMA controller before transferring data. The DMA Setup - Device to Host or Host to Device FIS is the mechanism by which first-party DMA access to host memory is initiated. DMA Setup - Device to Host or Host to Device (Bidirectional) as defined in SerialATA 1.0a section 8.5.6

#pragma warning(disable:4201) // nameless struct/union #pragma warning(disable:4214) // bit field types other than int Copyright (C) Microsoft Corporation, 2009

Microsoft standard sata ahci controller driver windows 10