OvmfPkg/VirtioNetDxe/SnpUnsupported.c

   1 /** @file
   2
   3   Empty implementation of the SNP methods that dependent protocols don't
   4   absolutely need and the UEFI-2.3.1+errC specification allows us not to
   5   support.
   6
   7   Copyright (C) 2013, Red Hat, Inc.
   8   Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
   9
  10   SPDX-License-Identifier: BSD-2-Clause-Patent
  11
  12 **/
  13
  14 #include "VirtioNet.h"
  15
  16 /**
  17   Resets a network adapter and re-initializes it with the parameters that were
  18   provided in the previous call to Initialize().
  19
  20   @param  This                 The protocol instance pointer.
  21   @param  ExtendedVerification Indicates that the driver may perform a more
  22                                exhaustive verification operation of the device
  23                                during reset.
  24
  25   @retval EFI_SUCCESS           The network interface was reset.
  26   @retval EFI_NOT_STARTED       The network interface has not been started.
  27   @retval EFI_INVALID_PARAMETER One or more of the parameters has an
  28                                 unsupported value.
  29   @retval EFI_DEVICE_ERROR      The command could not be sent to the network
  30                                 interface.
  31   @retval EFI_UNSUPPORTED       This function is not supported by the network
  32                                 interface.
  33
  34 **/
  35 EFI_STATUS
  36 EFIAPI
  37 VirtioNetReset (
  38   IN EFI_SIMPLE_NETWORK_PROTOCOL  *This,
  39   IN BOOLEAN                      ExtendedVerification
  40   )
  41 {
  42   return EFI_UNSUPPORTED;
  43 }
  44
  45 /**
  46   Modifies or resets the current station address, if supported.
  47
  48   @param  This  The protocol instance pointer.
  49   @param  Reset Flag used to reset the station address to the network
  50                 interfaces permanent address.
  51   @param  New   The new station address to be used for the network interface.
  52
  53   @retval EFI_SUCCESS           The network interfaces station address was
  54                                 updated.
  55   @retval EFI_NOT_STARTED       The network interface has not been started.
  56   @retval EFI_INVALID_PARAMETER One or more of the parameters has an
  57                                 unsupported value.
  58   @retval EFI_DEVICE_ERROR      The command could not be sent to the network
  59                                 interface.
  60   @retval EFI_UNSUPPORTED       This function is not supported by the network
  61                                 interface.
  62
  63 **/
  64 EFI_STATUS
  65 EFIAPI
  66 VirtioNetStationAddress (
  67   IN EFI_SIMPLE_NETWORK_PROTOCOL  *This,
  68   IN BOOLEAN                      Reset,
  69   IN EFI_MAC_ADDRESS              *New OPTIONAL
  70   )
  71 {
  72   return EFI_UNSUPPORTED;
  73 }
  74
  75 /**
  76   Resets or collects the statistics on a network interface.
  77
  78   @param  This            Protocol instance pointer.
  79   @param  Reset           Set to TRUE to reset the statistics for the network
  80                           interface.
  81   @param  StatisticsSize  On input the size, in bytes, of StatisticsTable. On
  82                           output the size, in bytes, of the resulting table of
  83                           statistics.
  84   @param  StatisticsTable A pointer to the EFI_NETWORK_STATISTICS structure
  85                           that contains the statistics.
  86
  87   @retval EFI_SUCCESS           The statistics were collected from the network
  88                                 interface.
  89   @retval EFI_NOT_STARTED       The network interface has not been started.
  90   @retval EFI_BUFFER_TOO_SMALL  The Statistics buffer was too small. The
  91                                 current buffer size needed to hold the
  92                                 statistics is returned in StatisticsSize.
  93   @retval EFI_INVALID_PARAMETER One or more of the parameters has an
  94                                 unsupported value.
  95   @retval EFI_DEVICE_ERROR      The command could not be sent to the network
  96                                 interface.
  97   @retval EFI_UNSUPPORTED       This function is not supported by the network
  98                                 interface.
  99
 100 **/
 101 EFI_STATUS
 102 EFIAPI
 103 VirtioNetStatistics (
 104   IN EFI_SIMPLE_NETWORK_PROTOCOL  *This,
 105   IN BOOLEAN                      Reset,
 106   IN OUT UINTN                    *StatisticsSize   OPTIONAL,
 107   OUT EFI_NETWORK_STATISTICS      *StatisticsTable  OPTIONAL
 108   )
 109 {
 110   return EFI_UNSUPPORTED;
 111 }
 112
 113 /**
 114   Performs read and write operations on the NVRAM device attached to a  network
 115   interface.
 116
 117   @param  This       The protocol instance pointer.
 118   @param  ReadWrite  TRUE for read operations, FALSE for write operations.
 119   @param  Offset     Byte offset in the NVRAM device at which to start the read
 120                      or write operation. This must be a multiple of
 121                      NvRamAccessSize and less than NvRamSize.
 122   @param  BufferSize The number of bytes to read or write from the NVRAM
 123                      device. This must also be a multiple of NvramAccessSize.
 124   @param  Buffer     A pointer to the data buffer.
 125
 126   @retval EFI_SUCCESS           The NVRAM access was performed.
 127   @retval EFI_NOT_STARTED       The network interface has not been started.
 128   @retval EFI_INVALID_PARAMETER One or more of the parameters has an
 129                                 unsupported value.
 130   @retval EFI_DEVICE_ERROR      The command could not be sent to the network
 131                                 interface.
 132   @retval EFI_UNSUPPORTED       This function is not supported by the network
 133                                 interface.
 134
 135 **/
 136 EFI_STATUS
 137 EFIAPI
 138 VirtioNetNvData (
 139   IN EFI_SIMPLE_NETWORK_PROTOCOL  *This,
 140   IN BOOLEAN                      ReadWrite,
 141   IN UINTN                        Offset,
 142   IN UINTN                        BufferSize,
 143   IN OUT VOID                     *Buffer
 144   )
 145 {
 146   return EFI_UNSUPPORTED;
 147 }