From 395e912e7268ae5c26aee662b23209211d7a2f2f Mon Sep 17 00:00:00 2001
From: Laszlo Ersek <lersek@redhat.com>
Date: Fri, 14 Jun 2013 07:39:58 +0000
Subject: OvmfPkg: VirtioNetDxe: Simple Network Protocol members Start and Stop

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
---
 OvmfPkg/VirtioNetDxe/SnpStart.c | 64 ++++++++++++++++++++++++++++++++++++++++
 OvmfPkg/VirtioNetDxe/SnpStop.c  | 65 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 129 insertions(+)
 create mode 100644 OvmfPkg/VirtioNetDxe/SnpStart.c
 create mode 100644 OvmfPkg/VirtioNetDxe/SnpStop.c

(limited to 'OvmfPkg')

diff --git a/OvmfPkg/VirtioNetDxe/SnpStart.c b/OvmfPkg/VirtioNetDxe/SnpStart.c
new file mode 100644
index 0000000000..4ded4d6db4
--- /dev/null
+++ b/OvmfPkg/VirtioNetDxe/SnpStart.c
@@ -0,0 +1,64 @@
+/** @file
+
+  Implementation of the SNP.Start() function and its private helpers if any.
+
+  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 <Library/UefiBootServicesTableLib.h>
+
+#include "VirtioNet.h"
+
+/**
+  Changes the state of a network interface from "stopped" to "started".
+
+  @param  This Protocol instance pointer.
+
+  @retval EFI_SUCCESS           The network interface was started.
+  @retval EFI_ALREADY_STARTED   The network interface is already in the started
+                                state.
+  @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
+VirtioNetStart (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL *This
+  )
+{
+  VNET_DEV   *Dev;
+  EFI_TPL    OldTpl;
+  EFI_STATUS Status;
+
+  if (This == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  Dev = VIRTIO_NET_FROM_SNP (This);
+  OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
+  if (Dev->Snm.State != EfiSimpleNetworkStopped) {
+    Status = EFI_ALREADY_STARTED;
+  }
+  else {
+    Dev->Snm.State = EfiSimpleNetworkStarted;
+    Status = EFI_SUCCESS;
+  }
+
+  gBS->RestoreTPL (OldTpl);
+  return Status;
+}
diff --git a/OvmfPkg/VirtioNetDxe/SnpStop.c b/OvmfPkg/VirtioNetDxe/SnpStop.c
new file mode 100644
index 0000000000..86c501930b
--- /dev/null
+++ b/OvmfPkg/VirtioNetDxe/SnpStop.c
@@ -0,0 +1,65 @@
+/** @file
+
+  Implementation of the SNP.Stop() function and its private helpers if any.
+
+  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 <Library/UefiBootServicesTableLib.h>
+
+#include "VirtioNet.h"
+
+/**
+  Changes the state of a network interface from "started" to "stopped".
+
+  @param  This Protocol instance pointer.
+
+  @retval EFI_SUCCESS           The network interface was stopped.
+  @retval EFI_ALREADY_STARTED   The network interface is already in the stopped
+                                state.
+  @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
+VirtioNetStop (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL *This
+  )
+{
+  VNET_DEV   *Dev;
+  EFI_TPL    OldTpl;
+  EFI_STATUS Status;
+
+  if (This == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  Dev = VIRTIO_NET_FROM_SNP (This);
+  OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
+  if (Dev->Snm.State != EfiSimpleNetworkStarted) {
+    Status = EFI_NOT_STARTED;
+  }
+  else {
+    Dev->Snm.State = EfiSimpleNetworkStopped;
+    Status = EFI_SUCCESS;
+  }
+
+  gBS->RestoreTPL (OldTpl);
+  return Status;
+}
-- 
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