SnpReceive.c File Reference

#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include "VirtioNet.h"

Go to the source code of this file.

Functions
EFI_STATUS EFIAPI	VirtioNetReceive (IN EFI_SIMPLE_NETWORK_PROTOCOL *This, OUT UINTN *HeaderSize OPTIONAL, IN OUT UINTN *BufferSize, OUT VOID *Buffer, OUT EFI_MAC_ADDRESS *SrcAddr OPTIONAL, OUT EFI_MAC_ADDRESS *DestAddr OPTIONAL, OUT UINT16 *Protocol OPTIONAL)

Detailed Description

Implementation of the SNP.Receive() function and its private helpers if any.

Copyright (C) 2013, Red Hat, Inc. Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.

SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file SnpReceive.c.

Function Documentation

VirtioNetReceive()

EFI_STATUS EFIAPI VirtioNetReceive	(	IN EFI_SIMPLE_NETWORK_PROTOCOL *	This,
		OUT UINTN *HeaderSize	OPTIONAL,
		IN OUT UINTN *	BufferSize,
		OUT VOID *	Buffer,
		OUT EFI_MAC_ADDRESS *SrcAddr	OPTIONAL,
		OUT EFI_MAC_ADDRESS *DestAddr	OPTIONAL,
		OUT UINT16 *Protocol	OPTIONAL
	)

Receives a packet from a network interface.

Parameters

This	The protocol instance pointer.
HeaderSize	The size, in bytes, of the media header received on the network interface. If this parameter is NULL, then the media header size will not be returned.
BufferSize	On entry, the size, in bytes, of Buffer. On exit, the size, in bytes, of the packet that was received on the network interface.
Buffer	A pointer to the data buffer to receive both the media header and the data.
SrcAddr	The source HW MAC address. If this parameter is NULL, the HW MAC source address will not be extracted from the media header.
DestAddr	The destination HW MAC address. If this parameter is NULL, the HW MAC destination address will not be extracted from the media header.
Protocol	The media header type. If this parameter is NULL, then the protocol will not be extracted from the media header. See RFC 1700 section "Ether Types" for examples.

Return values

EFI_SUCCESS	The received data was stored in Buffer, and BufferSize has been updated to the number of bytes received.
EFI_NOT_STARTED	The network interface has not been started.
EFI_NOT_READY	The network interface is too busy to accept this transmit request.
EFI_BUFFER_TOO_SMALL	The BufferSize parameter is too small.
EFI_INVALID_PARAMETER	One or more of the parameters has an unsupported value.
EFI_DEVICE_ERROR	The command could not be sent to the network interface.
EFI_UNSUPPORTED	This function is not supported by the network interface.

Definition at line 57 of file SnpReceive.c.