enc624j6net

- improved duplex/offline check handling
 - better TX handling (one less full frame copy per TX request),
   i.e. direct write from driver to HW buffer
 - some other minor changes
 - revised TX is optional (see smakefile), requires a VHDL fix
   that is not checked in to svn as of yet

Driver/enc624j6net/track.c

@@ -46,7 +46,17 @@ PRIVATE struct TrackRec *findtracktype(BASEPTR, ULONG type);
                                                       tr = (struct TrackRec *) tr->tr_Link.mln_Succ)
    {
       if( tr->tr_PacketType == type )
-         return( tr );
+      {
+#if 0
+        /* simple MTF for PacketType search */
+      	if( (struct Node*)tr != pb->pb_TrackList.lh_Head )
+      	{
+      	 Remove( (struct Node*)tr );
+      	 AddHead( (struct List*)&pb->pb_TrackList, (struct Node*)tr );
+      	}
+#endif      	
+        return( tr );
+      }
    }
 
    return( NULL );