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StorPortGetNodeAffinity function (storport.h)

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

Syntax

ULONG StorPortGetNodeAffinity(
  [in]  PVOID           HwDeviceExtension,
  [in]  ULONG           NodeNumber,
  [out] PGROUP_AFFINITY NodeAffinityMask
);

Parameters

[in] HwDeviceExtension

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

[in] NodeNumber

The NUMA node from which to return the processor mask.

[out] NodeAffinityMask

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.

Requirements

Requirement Value
Minimum supported client Available in Windows 7 and later versions of the Windows operating systems.
Target Platform Universal
Header storport.h (include Storport.h)
IRQL <=DISPATCH_LEVEL
DDI compliance rules StorPortIrql(storport)