1. Add EFI_COMPONENT_NAME2_PROTOCOL.GetControllerName() support.

2. Fix the driver binding Stop() hang issue in the network stack.
3. Add Ip4 raw data support.
4. Add iSCSI Dhcp option 60 support.

Signed-off-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Reviewed-by: Ouyang Qian <qian.ouyang@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13995 6f19259b-4bc3-4df7-8a09-765794883524

NetworkPkg/Mtftp6Dxe/Mtftp6Impl.c

@@ -197,6 +197,19 @@ EfiMtftp6Configure (
                           UDP_IO_UDP6_VERSION,
                           NULL
                           );
+      if (Instance->UdpIo != NULL) {
+        Status = gBS->OpenProtocol (
+                        Instance->UdpIo->UdpHandle,
+                        &gEfiUdp6ProtocolGuid,
+                        (VOID **) &Udp6,
+                        Service->Image,
+                        Instance->Handle,
+                        EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
+                        );
+        if (EFI_ERROR (Status)) {
+          goto ON_EXIT;
+        }
+      }
     }
 
     if (Instance->UdpIo == NULL) {
@@ -626,8 +639,6 @@ EfiMtftp6Poll (
   //
   if (Instance->Config == NULL) {
     return EFI_NOT_STARTED;
-  } else if (Instance->InDestroy) {
-    return EFI_DEVICE_ERROR;
   }
 
   Udp6 = Instance->UdpIo->Protocol.Udp6;