395e912e72
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@14409 6f19259b-4bc3-4df7-8a09-765794883524
66 lines
1.9 KiB
C
66 lines
1.9 KiB
C
/** @file
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Implementation of the SNP.Stop() function and its private helpers if any.
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Copyright (C) 2013, Red Hat, Inc.
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Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials are licensed and made available
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under the terms and conditions of the BSD License which accompanies this
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distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
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WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <Library/UefiBootServicesTableLib.h>
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#include "VirtioNet.h"
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/**
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Changes the state of a network interface from "started" to "stopped".
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@param This Protocol instance pointer.
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@retval EFI_SUCCESS The network interface was stopped.
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@retval EFI_ALREADY_STARTED The network interface is already in the stopped
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state.
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@retval EFI_INVALID_PARAMETER One or more of the parameters has an
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unsupported value.
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@retval EFI_DEVICE_ERROR The command could not be sent to the network
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interface.
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@retval EFI_UNSUPPORTED This function is not supported by the network
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interface.
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**/
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EFI_STATUS
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EFIAPI
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VirtioNetStop (
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IN EFI_SIMPLE_NETWORK_PROTOCOL *This
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)
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{
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VNET_DEV *Dev;
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EFI_TPL OldTpl;
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EFI_STATUS Status;
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if (This == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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Dev = VIRTIO_NET_FROM_SNP (This);
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OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
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if (Dev->Snm.State != EfiSimpleNetworkStarted) {
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Status = EFI_NOT_STARTED;
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}
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else {
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Dev->Snm.State = EfiSimpleNetworkStopped;
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Status = EFI_SUCCESS;
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}
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gBS->RestoreTPL (OldTpl);
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return Status;
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}
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