OvmfPkg: VirtioNetDxe: definitions of unsupported SNP member functions

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14416 6f19259b-4bc3-4df7-8a09-765794883524

OvmfPkg/VirtioNetDxe/SnpUnsupported.c

@@ -0,0 +1,160 @@
+/** @file
+
+  Empty implementation of the SNP methods that dependent protocols don't
+  absolutely need and the UEFI-2.3.1+errC specification allows us not to
+  support.
+
+  Copyright (C) 2013, Red Hat, Inc.
+  Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+
+  This program and the accompanying materials are licensed and made available
+  under the terms and conditions of the BSD License which accompanies this
+  distribution. The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
+  WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "VirtioNet.h"
+
+/**
+  Resets a network adapter and re-initializes it with the parameters that were
+  provided in the previous call to Initialize().
+
+  @param  This                 The protocol instance pointer.
+  @param  ExtendedVerification Indicates that the driver may perform a more
+                               exhaustive verification operation of the device
+                               during reset.
+
+  @retval EFI_SUCCESS           The network interface was reset.
+  @retval EFI_NOT_STARTED       The network interface has not been started.
+  @retval EFI_INVALID_PARAMETER One or more of the parameters has an
+                                unsupported value.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network
+                                interface.
+  @retval EFI_UNSUPPORTED       This function is not supported by the network
+                                interface.
+
+**/
+
+EFI_STATUS
+EFIAPI
+VirtioNetReset (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL *This,
+  IN BOOLEAN                     ExtendedVerification
+  )
+{
+  return EFI_UNSUPPORTED;
+}
+
+
+/**
+  Modifies or resets the current station address, if supported.
+
+  @param  This  The protocol instance pointer.
+  @param  Reset Flag used to reset the station address to the network
+                interfaces permanent address.
+  @param  New   The new station address to be used for the network interface.
+
+  @retval EFI_SUCCESS           The network interfaces station address was
+                                updated.
+  @retval EFI_NOT_STARTED       The network interface has not been started.
+  @retval EFI_INVALID_PARAMETER One or more of the parameters has an
+                                unsupported value.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network
+                                interface.
+  @retval EFI_UNSUPPORTED       This function is not supported by the network
+                                interface.
+
+**/
+
+EFI_STATUS
+EFIAPI
+VirtioNetStationAddress (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL *This,
+  IN BOOLEAN                     Reset,
+  IN EFI_MAC_ADDRESS             *New OPTIONAL
+  )
+{
+  return EFI_UNSUPPORTED;
+}
+
+
+/**
+  Resets or collects the statistics on a network interface.
+
+  @param  This            Protocol instance pointer.
+  @param  Reset           Set to TRUE to reset the statistics for the network
+                          interface.
+  @param  StatisticsSize  On input the size, in bytes, of StatisticsTable. On
+                          output the size, in bytes, of the resulting table of
+                          statistics.
+  @param  StatisticsTable A pointer to the EFI_NETWORK_STATISTICS structure
+                          that contains the statistics.
+
+  @retval EFI_SUCCESS           The statistics were collected from the network
+                                interface.
+  @retval EFI_NOT_STARTED       The network interface has not been started.
+  @retval EFI_BUFFER_TOO_SMALL  The Statistics buffer was too small. The
+                                current buffer size needed to hold the
+                                statistics is returned in StatisticsSize.
+  @retval EFI_INVALID_PARAMETER One or more of the parameters has an
+                                unsupported value.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network
+                                interface.
+  @retval EFI_UNSUPPORTED       This function is not supported by the network
+                                interface.
+
+**/
+
+EFI_STATUS
+EFIAPI
+VirtioNetStatistics (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL *This,
+  IN BOOLEAN                     Reset,
+  IN OUT UINTN                   *StatisticsSize   OPTIONAL,
+  OUT EFI_NETWORK_STATISTICS     *StatisticsTable  OPTIONAL
+  )
+{
+  return EFI_UNSUPPORTED;
+}
+
+
+/**
+  Performs read and write operations on the NVRAM device attached to a  network
+  interface.
+
+  @param  This       The protocol instance pointer.
+  @param  ReadWrite  TRUE for read operations, FALSE for write operations.
+  @param  Offset     Byte offset in the NVRAM device at which to start the read
+                     or write operation. This must be a multiple of
+                     NvRamAccessSize and less than NvRamSize.
+  @param  BufferSize The number of bytes to read or write from the NVRAM
+                     device. This must also be a multiple of NvramAccessSize.
+  @param  Buffer     A pointer to the data buffer.
+
+  @retval EFI_SUCCESS           The NVRAM access was performed.
+  @retval EFI_NOT_STARTED       The network interface has not been started.
+  @retval EFI_INVALID_PARAMETER One or more of the parameters has an
+                                unsupported value.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network
+                                interface.
+  @retval EFI_UNSUPPORTED       This function is not supported by the network
+                                interface.
+
+**/
+
+EFI_STATUS
+EFIAPI
+VirtioNetNvData (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL *This,
+  IN BOOLEAN                     ReadWrite,
+  IN UINTN                       Offset,
+  IN UINTN                       BufferSize,
+  IN OUT VOID                    *Buffer
+  )
+{
+  return EFI_UNSUPPORTED;
+}