PCI_MSIX_TABLE_CONFIG_INTERFACE structure (wdm.h)

The PCI_MSIX_TABLE_CONFIG_INTERFACE structure enables device drivers to modify their MSI-X interrupt settings. This structure describes the GUID_MSIX_TABLE_CONFIG_INTERFACE interface.

Syntax

typedef struct _PCI_MSIX_TABLE_CONFIG_INTERFACE {
  USHORT                     Size;
  USHORT                     Version;
  PVOID                      Context;
  PINTERFACE_REFERENCE       InterfaceReference;
  PINTERFACE_DEREFERENCE     InterfaceDereference;
  PPCI_MSIX_SET_ENTRY        SetTableEntry;
  PPCI_MSIX_MASKUNMASK_ENTRY MaskTableEntry;
  PPCI_MSIX_MASKUNMASK_ENTRY UnmaskTableEntry;
  PPCI_MSIX_GET_ENTRY        GetTableEntry;
  PPCI_MSIX_GET_TABLE_SIZE   GetTableSize;
} PCI_MSIX_TABLE_CONFIG_INTERFACE, *PPCI_MSIX_TABLE_CONFIG_INTERFACE;

Members

Size

The size, in bytes, of this structure.

Version

The driver-defined interface version.

Context

A pointer to interface-specific context information.

InterfaceReference

A pointer to an InterfaceReference routine that increments the interface's reference count.

InterfaceDereference

A pointer to an InterfaceDereference routine that decrements the interface's reference count.

SetTableEntry

A pointer to the interface's SetTableEntry routine.

MaskTableEntry

A pointer to the interface's MaskTableEntry routine.

UnmaskTableEntry

A pointer to the interface's UnmaskTableEntry routine.

GetTableEntry

Reserved for future use.

GetTableSize

Reserved for future use.

Remarks

A driver obtains a pointer to the PCI_MSIX_TABLE_CONFIG_INTERFACE structure by sending an IRP_MN_QUERY_INTERFACE IRP to its bus driver with InterfaceType set to GUID_MSIX_TABLE_CONFIG_INTERFACE.

Requirements

Requirement	Value
Minimum supported client	Available in Windows Vista with Service Pack 1 (SP1), Windows Server 2008, and later versions of the Windows operating system.
Header	wdm.h (include Wdm.h, Ntddk.h, Ntifs.h)

See also

GUID_MSIX_TABLE_CONFIG_INTERFACE

IRP_MN_QUERY_INTERFACE

InterfaceDereference

InterfaceReference

MaskTableEntry

SetTableEntry

UnmaskTableEntry