xref: /external/syslinux/efi64/include/efi/efi_nii.h

#ifndef _EFI_NII_H
#define _EFI_NII_H

/*++
Copyright (c) 2000  Intel Corporation

Module name:
    efi_nii.h

Abstract:

Revision history:
    2000-Feb-18 M(f)J   GUID updated.
                Structure order changed for machine word alignment.
                Added StringId[4] to structure.

    2000-Feb-14 M(f)J   Genesis.
--*/

#define EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL \
    { 0xE18541CD, 0xF755, 0x4f73, {0x92, 0x8D, 0x64, 0x3C, 0x8A, 0x79, 0xB2, 0x29} }

#define EFI_NETWORK_INTERFACE_IDENTIFIER_INTERFACE_REVISION 0x00010000

typedef enum {
    EfiNetworkInterfaceUndi = 1
} EFI_NETWORK_INTERFACE_TYPE;

typedef struct {

    UINT64 Revision;
    // Revision of the network interface identifier protocol interface.

    UINT64 ID;
    // Address of the first byte of the identifying structure for this
    // network interface.  This is set to zero if there is no structure.
    //
    // For PXE/UNDI this is the first byte of the !PXE structure.

    UINT64 ImageAddr;
    // Address of the UNrelocated driver/ROM image.  This is set
    // to zero if there is no driver/ROM image.
    //
    // For 16-bit UNDI, this is the first byte of the option ROM in
    // upper memory.
    //
    // For 32/64-bit S/W UNDI, this is the first byte of the EFI ROM
    // image.
    //
    // For H/W UNDI, this is set to zero.

    UINT32 ImageSize;
    // Size of the UNrelocated driver/ROM image of this network interface.
    // This is set to zero if there is no driver/ROM image.

    CHAR8 StringId[4];
    // 4 char ASCII string to go in class identifier (option 60) in DHCP
    // and Boot Server discover packets.
    // For EfiNetworkInterfaceUndi this field is "UNDI".
    // For EfiNetworkInterfaceSnp this field is "SNPN".

    UINT8 Type;
    UINT8 MajorVer;
    UINT8 MinorVer;
    // Information to be placed into the PXE DHCP and Discover packets.
    // This is the network interface type and version number that will
    // be placed into DHCP option 94 (client network interface identifier).
    BOOLEAN Ipv6Supported;
	UINT8   IfNum;	// interface number to be used with pxeid structure
} EFI_NETWORK_INTERFACE_IDENTIFIER_INTERFACE;

extern EFI_GUID NetworkInterfaceIdentifierProtocol;

#endif // _EFI_NII_H