// storport.h

ULONG StorPortGetNodeAffinity(
  [in]  PVOID           HwDeviceExtension,
  [in]  ULONG           NodeNumber,
  [out] PGROUP_AFFINITY NodeAffinityMask
);
View the official Windows Driver Kit DDI reference

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

StorPortGetNodeAffinity function

Description

The StorPortGetNodeAffinity routine constructs a mask of the active processors in a requested non-uniform memory access (NUMA) node.

Parameters

`HwDeviceExtension` [in]

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

`NodeNumber` [in]

The NUMA node from which to return the processor mask.

`NodeAffinityMask` [out]

A pointer to a variable that holds the affinity mask of the given node.

Return value

The StorPortGetNodeAffinityroutine 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	The operation was successful.
STOR_STATUS_INVALID_PARAMETER	The operation fails with this return value if one or more of the parameters are invalid, for example, if NodeAffinityMask is set to NULL, or if NodeNumber is greater than 65,535.

View the official Windows Driver Kit DDI reference