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
  36 EFI_STATUS
  37 EFIAPI
  38 VirtioNetReset (
  39   IN EFI_SIMPLE_NETWORK_PROTOCOL *This,
  40   IN BOOLEAN                     ExtendedVerification
  41   )
  42 {
  43   return EFI_UNSUPPORTED;
  44 }
  45
  46
  47 /**
  48   Modifies or resets the current station address, if supported.
  49
  50   @param  This  The protocol instance pointer.
  51   @param  Reset Flag used to reset the station address to the network
  52                 interfaces permanent address.
  53   @param  New   The new station address to be used for the network interface.
  54
  55   @retval EFI_SUCCESS           The network interfaces station address was
  56                                 updated.
  57   @retval EFI_NOT_STARTED       The network interface has not been started.
  58   @retval EFI_INVALID_PARAMETER One or more of the parameters has an
  59                                 unsupported value.
  60   @retval EFI_DEVICE_ERROR      The command could not be sent to the network
  61                                 interface.
  62   @retval EFI_UNSUPPORTED       This function is not supported by the network
  63                                 interface.
  64
  65 **/
  66
  67 EFI_STATUS
  68 EFIAPI
  69 VirtioNetStationAddress (
  70   IN EFI_SIMPLE_NETWORK_PROTOCOL *This,
  71   IN BOOLEAN                     Reset,
  72   IN EFI_MAC_ADDRESS             *New OPTIONAL
  73   )
  74 {
  75   return EFI_UNSUPPORTED;
  76 }
  77
  78
  79 /**
  80   Resets or collects the statistics on a network interface.
  81
  82   @param  This            Protocol instance pointer.
  83   @param  Reset           Set to TRUE to reset the statistics for the network
  84                           interface.
  85   @param  StatisticsSize  On input the size, in bytes, of StatisticsTable. On
  86                           output the size, in bytes, of the resulting table of
  87                           statistics.
  88   @param  StatisticsTable A pointer to the EFI_NETWORK_STATISTICS structure
  89                           that contains the statistics.
  90
  91   @retval EFI_SUCCESS           The statistics were collected from the network
  92                                 interface.
  93   @retval EFI_NOT_STARTED       The network interface has not been started.
  94   @retval EFI_BUFFER_TOO_SMALL  The Statistics buffer was too small. The
  95                                 current buffer size needed to hold the
  96                                 statistics is returned in StatisticsSize.
  97   @retval EFI_INVALID_PARAMETER One or more of the parameters has an
  98                                 unsupported value.
  99   @retval EFI_DEVICE_ERROR      The command could not be sent to the network
 100                                 interface.
 101   @retval EFI_UNSUPPORTED       This function is not supported by the network
 102                                 interface.
 103
 104 **/
 105
 106 EFI_STATUS
 107 EFIAPI
 108 VirtioNetStatistics (
 109   IN EFI_SIMPLE_NETWORK_PROTOCOL *This,
 110   IN BOOLEAN                     Reset,
 111   IN OUT UINTN                   *StatisticsSize   OPTIONAL,
 112   OUT EFI_NETWORK_STATISTICS     *StatisticsTable  OPTIONAL
 113   )
 114 {
 115   return EFI_UNSUPPORTED;
 116 }
 117
 118
 119 /**
 120   Performs read and write operations on the NVRAM device attached to a  network
 121   interface.
 122
 123   @param  This       The protocol instance pointer.
 124   @param  ReadWrite  TRUE for read operations, FALSE for write operations.
 125   @param  Offset     Byte offset in the NVRAM device at which to start the read
 126                      or write operation. This must be a multiple of
 127                      NvRamAccessSize and less than NvRamSize.
 128   @param  BufferSize The number of bytes to read or write from the NVRAM
 129                      device. This must also be a multiple of NvramAccessSize.
 130   @param  Buffer     A pointer to the data buffer.
 131
 132   @retval EFI_SUCCESS           The NVRAM access was performed.
 133   @retval EFI_NOT_STARTED       The network interface has not been started.
 134   @retval EFI_INVALID_PARAMETER One or more of the parameters has an
 135                                 unsupported value.
 136   @retval EFI_DEVICE_ERROR      The command could not be sent to the network
 137                                 interface.
 138   @retval EFI_UNSUPPORTED       This function is not supported by the network
 139                                 interface.
 140
 141 **/
 142
 143 EFI_STATUS
 144 EFIAPI
 145 VirtioNetNvData (
 146   IN EFI_SIMPLE_NETWORK_PROTOCOL *This,
 147   IN BOOLEAN                     ReadWrite,
 148   IN UINTN                       Offset,
 149   IN UINTN                       BufferSize,
 150   IN OUT VOID                    *Buffer
 151   )
 152 {
 153   return EFI_UNSUPPORTED;
 154 }