X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=MdeModulePkg%2FUniversal%2FNetwork%2FMnpDxe%2FMnpIo.c;h=b8f61bf696fe1d82e45b9122202e18ee59da1d67;hp=1aa3207ea357d2d4ba6705e9d4c4e086ee7ca894;hb=bdebd2cecf015a5feb11e99269731cac606167e8;hpb=da660118bd391d1f421f99921f9f15a66a8fc7ea

diff --git a/MdeModulePkg/Universal/Network/MnpDxe/MnpIo.c b/MdeModulePkg/Universal/Network/MnpDxe/MnpIo.c
index 1aa3207ea3..b8f61bf696 100644
--- a/MdeModulePkg/Universal/Network/MnpDxe/MnpIo.c
+++ b/MdeModulePkg/Universal/Network/MnpDxe/MnpIo.c
@@ -1,7 +1,7 @@
 /** @file
   Implementation of Managed Network Protocol I/O functions.
 
-Copyright (c) 2005 - 2010, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2005 - 2013, 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
@@ -130,10 +130,20 @@ MnpBuildTxPacket (
   MnpDerviceData = MnpServiceData->MnpDeviceData;
   if ((TxData->DestinationAddress == NULL) && (TxData->FragmentCount == 1)) {
     //
-    // Media header is in FragmentTable and there is only one fragment,
-    // use fragment buffer directly.
+    // Reserve space for vlan tag,if necessary.
     //
-    *PktBuf = TxData->FragmentTable[0].FragmentBuffer;
+    if (MnpServiceData->VlanId != 0) {
+      *PktBuf = MnpDerviceData->TxBuf + NET_VLAN_TAG_LEN;
+    } else {
+      *PktBuf = MnpDerviceData->TxBuf;
+    } 
+    
+    CopyMem (
+        *PktBuf,
+        TxData->FragmentTable[0].FragmentBuffer,
+        TxData->FragmentTable[0].FragmentLength
+        );
+    
     *PktLen = TxData->FragmentTable[0].FragmentLength;
   } else {
     //
@@ -235,10 +245,15 @@ MnpSyncSendPacket (
     goto SIGNAL_TOKEN;
   }
 
-  //
-  // Insert VLAN tag
-  //
-  MnpInsertVlanTag (MnpServiceData, TxData, &ProtocolType, &Packet, &Length);
+  
+  if (MnpServiceData->VlanId != 0) {
+    //
+    // Insert VLAN tag
+    //
+    MnpInsertVlanTag (MnpServiceData, TxData, &ProtocolType, &Packet, &Length);
+  } else {
+    ProtocolType = TxData->ProtocolType;
+  }
 
   for (;;) {
     //