VirtualBox

source: vbox/trunk/src/VBox/Devices/EFI/Firmware/OvmfPkg/VirtioNetDxe/SnpStop.c@ 78403

Last change on this file since 78403 was 58464, checked in by vboxsync, 9 years ago

EFI/Firmware: Export new files and directories.

  • Property svn:eol-style set to native
File size: 1.8 KB
Line 
1/** @file
2
3 Implementation of the SNP.Stop() function and its private helpers if any.
4
5 Copyright (C) 2013, Red Hat, Inc.
6 Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
7
8 This program and the accompanying materials are licensed and made available
9 under the terms and conditions of the BSD License which accompanies this
10 distribution. The full text of the license may be found at
11 http://opensource.org/licenses/bsd-license.php
12
13 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
14 WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
15
16**/
17
18#include <Library/UefiBootServicesTableLib.h>
19
20#include "VirtioNet.h"
21
22/**
23 Changes the state of a network interface from "started" to "stopped".
24
25 @param This Protocol instance pointer.
26
27 @retval EFI_SUCCESS The network interface was stopped.
28 @retval EFI_ALREADY_STARTED The network interface is already in the stopped
29 state.
30 @retval EFI_INVALID_PARAMETER One or more of the parameters has an
31 unsupported value.
32 @retval EFI_DEVICE_ERROR The command could not be sent to the network
33 interface.
34 @retval EFI_UNSUPPORTED This function is not supported by the network
35 interface.
36
37**/
38
39EFI_STATUS
40EFIAPI
41VirtioNetStop (
42 IN EFI_SIMPLE_NETWORK_PROTOCOL *This
43 )
44{
45 VNET_DEV *Dev;
46 EFI_TPL OldTpl;
47 EFI_STATUS Status;
48
49 if (This == NULL) {
50 return EFI_INVALID_PARAMETER;
51 }
52
53 Dev = VIRTIO_NET_FROM_SNP (This);
54 OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
55 if (Dev->Snm.State != EfiSimpleNetworkStarted) {
56 Status = EFI_NOT_STARTED;
57 }
58 else {
59 Dev->Snm.State = EfiSimpleNetworkStopped;
60 Status = EFI_SUCCESS;
61 }
62
63 gBS->RestoreTPL (OldTpl);
64 return Status;
65}
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