NDIS_SYSTEM_PROCESSOR_INFO_EX structure (ntddndis.h)

The NDIS_SYSTEM_PROCESSOR_INFO_EX structure specifies information about the CPU topology of the local computer.

Syntax

typedef struct _NDIS_SYSTEM_PROCESSOR_INFO_EX {
  NDIS_OBJECT_HEADER    Header;
  ULONG                 Flags;
  NDIS_PROCESSOR_VENDOR ProcessorVendor;
  ULONG                 NumSockets;
  ULONG                 NumCores;
  ULONG                 NumCoresPerSocket;
  ULONG                 MaxHyperThreadingProcsPerCore;
  ULONG                 ProcessorInfoOffset;
  ULONG                 NumberOfProcessors;
  ULONG                 ProcessorInfoEntrySize;
} NDIS_SYSTEM_PROCESSOR_INFO_EX, *PNDIS_SYSTEM_PROCESSOR_INFO_EX;

Members

Header

The NDIS_OBJECT_HEADER structure for the NDIS_SYSTEM_PROCESSOR_INFO_EX structure. NDIS sets the Type member of the structure that Header specifies to NDIS_OBJECT_TYPE_DEFAULT, the Revision member to NDIS_SYSTEM_PROCESSOR_INFO_EX_REVISION_1, and the Size member to NDIS_SIZEOF_SYSTEM_PROCESSOR_INFO_EX_REVISION_1.

Flags

Reserved. NDIS sets this member to zero.

ProcessorVendor

The processor vendor specified as one of the values from the NDIS_PROCESSOR_VENDOR enumeration.

NumSockets

The total number of processor physical packages (that is, sockets on the local computer motherboard) that are in the local computer.

NumCores

The total number of core processors that are in the local computer. For example, set this member to four if there are two dual core physical packages.

NumCoresPerSocket

The number of core processors that are in each physical package. For example, set this member to two for a dual core physical package.

MaxHyperThreadingProcsPerCore

The maximum number of logical processors that are in each hyper-threaded core processor. For example, set this member to two if each hyper-threaded core processor supports two logical processors.

ProcessorInfoOffset

The offset, in bytes, from the start of the structure to an array of NDIS_PROCESSOR_INFO_EX structures, with each entry describing a processor on the computer. The NumberOfProcessors member contains the number of NDIS_PROCESSOR_INFO_EX structures in the array. The ProcessorInfoEntrySize member contains the size of the NDIS_PROCESSOR_INFO_EX structures in the array.

NumberOfProcessors

The number of elements in the array of NDIS_PROCESSOR_INFO_EX structures that follows this structure.

ProcessorInfoEntrySize

The size, in bytes, of elements in the array of NDIS_PROCESSOR_INFO_EX structures that follows this structure.

Remarks

NDIS network drivers use the NDIS_SYSTEM_PROCESSOR_INFO_EX structure in calls to the NdisGetProcessorInformationEx function. After NdisGetProcessorInformationEx returns, this structure contains information about the CPU topology of the system.

Requirements

Requirement	Value
Minimum supported client	Supported in NDIS 6.20 and later.
Header	ntddndis.h (include Ndis.h)

See also

NDIS_OBJECT_HEADER

NDIS_PROCESSOR_INFO_EX

NDIS_PROCESSOR_VENDOR

NDIS_SYSTEM_PROCESSOR_INFO

NdisGetProcessorInformationEx