StorPortGetOriginalMdl - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
// storport.h

ULONG StorPortGetOriginalMdl(
  [in]  PVOID               HwDeviceExtension,
  [in]  PSCSI_REQUEST_BLOCK Srb,
  [out] PVOID               *Mdl
);
View the official Windows Driver Kit DDI reference

NtDoc

No description available.

Edit description on GitHub

Windows Driver Kit DDI reference (nf-storport-storportgetoriginalmdl)

StorPortGetOriginalMdl function

Description

The StorPortGetOriginalMdl routine returns the MDL associated with the given SRB.

Parameters

HwDeviceExtension [in]

A pointer to the hardware device extension for the host bus adapter (HBA).

Srb [in]

A pointer to a SCSI_REQUEST_BLOCK structure.

Mdl [out]

A pointer to receive the MDL.

Return value

StorPortGetOriginalMdl returns one of the following status codes:

Return code Description
STOR_STATUS_NOT_IMPLEMENTED This function is not implemented on the active operating system.
STOR_STATUS_SUCCESS Indicates that the MDL was obtained successfully.
STOR_STATUS_INVALID_PARAMETER The pointer in Mdl receiving the SRB's MDL is NULL.

Remarks

Starting in Windows 8, the Srb parameter may point to either SCSI_REQUEST_BLOCK or STORAGE_REQUEST_BLOCK. If the function identifier in the Function field of Srb is SRB_FUNCTION_STORAGE_REQUEST_BLOCK, the SRB is a STORAGE_REQUEST_BLOCK request structure.

See also

SCSI_REQUEST_BLOCK

STORAGE_REQUEST_BLOCK

StorPortGetSystemAddress

View the official Windows Driver Kit DDI reference

Edit description on GitHub