SnpTransmit.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	VirtioNetTransmit (IN EFI_SIMPLE_NETWORK_PROTOCOL *This, IN UINTN HeaderSize, IN UINTN BufferSize, IN VOID *Buffer, IN EFI_MAC_ADDRESS *SrcAddr OPTIONAL, IN EFI_MAC_ADDRESS *DestAddr OPTIONAL, IN UINT16 *Protocol OPTIONAL)

Detailed Description

Implementation of the SNP.Transmit() 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 SnpTransmit.c.

Function Documentation

VirtioNetTransmit()

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

Places a packet in the transmit queue of a network interface.

Parameters

This	The protocol instance pointer.
HeaderSize	The size, in bytes, of the media header to be filled in by the Transmit() function. If HeaderSize is non-zero, then it must be equal to This->Mode->MediaHeaderSize and the DestAddr and Protocol parameters must not be NULL.
BufferSize	The size, in bytes, of the entire packet (media header and data) to be transmitted through the network interface.
Buffer	A pointer to the packet (media header followed by data) to be transmitted. This parameter cannot be NULL. If HeaderSize is zero, then the media header in Buffer must already be filled in by the caller. If HeaderSize is non-zero, then the media header will be filled in by the Transmit() function.
SrcAddr	The source HW MAC address. If HeaderSize is zero, then this parameter is ignored. If HeaderSize is non-zero and SrcAddr is NULL, then This->Mode->CurrentAddress is used for the source HW MAC address.
DestAddr	The destination HW MAC address. If HeaderSize is zero, then this parameter is ignored.
Protocol	The type of header to build. If HeaderSize is zero, then this parameter is ignored. See RFC 1700, section "Ether Types", for examples.

Return values

EFI_SUCCESS	The packet was placed on the transmit queue.
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 59 of file SnpTransmit.c.