vnet/vnet/l2/l2_xcrw.h

   1 /*
   2  * Copyright (c) 2015 Cisco and/or its affiliates.
   3  * Licensed under the Apache License, Version 2.0 (the "License");
   4  * you may not use this file except in compliance with the License.
   5  * You may obtain a copy of the License at:
   6  *
   7  *     http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Unless required by applicable law or agreed to in writing, software
  10  * distributed under the License is distributed on an "AS IS" BASIS,
  11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12  * See the License for the specific language governing permissions and
  13  * limitations under the License.
  14  */
  15 #ifndef __included_l2_xcrw_h__
  16 #define __included_l2_xcrw_h__
  17
  18 #include <vlib/vlib.h>
  19 #include <vnet/vnet.h>
  20 #include <vnet/pg/pg.h>
  21 #include <vppinfra/error.h>
  22 #include <vnet/ip/ip.h>
  23 #include <vnet/l2/l2_input.h>
  24 #include <vnet/l2/l2_output.h>
  25 #include <vnet/api_errno.h>
  26 #include <vnet/ethernet/ethernet.h>
  27
  28 typedef struct {
  29   /*
  30    * Let: rewrite_header.sw_if_index = tx_fib_index or ~0.
  31    *      rewrite_header.next_index = L2_XCRW_NEXT_XXX
  32    */
  33   vnet_declare_rewrite (VLIB_BUFFER_PRE_DATA_SIZE);
  34 } l2_xcrw_adjacency_t;
  35
  36 typedef struct {
  37   /* L2 interface */
  38   u32 l2_sw_if_index;
  39
  40   /* Tunnel interface */
  41   u32 tunnel_sw_if_index;  /* This field remains set in freed pool elts */
  42
  43 } l2_xcrw_tunnel_t;
  44
  45 typedef struct {
  46   u32 cached_next_index;
  47
  48   /* Vector of cross-connect rewrites */
  49   l2_xcrw_adjacency_t * adj_by_sw_if_index;
  50
  51   /* Pool of xcrw tunnels */
  52   l2_xcrw_tunnel_t * tunnels;
  53
  54   /* Tunnel index by tunnel sw_if_index */
  55   uword * tunnel_index_by_l2_sw_if_index;
  56
  57   /* convenience variables */
  58   vlib_main_t * vlib_main;
  59   vnet_main_t * vnet_main;
  60 } l2_xcrw_main_t;
  61
  62 typedef enum {
  63   L2_XCRW_NEXT_DROP,
  64   L2_XCRW_N_NEXT,
  65 } l2_xcrw_next_t;
  66
  67 #define foreach_l2_xcrw_error                   \
  68 _(DROP, "Packets dropped")                      \
  69 _(FWD, "Packets forwarded")
  70
  71 typedef enum {
  72 #define _(sym,str) L2_XCRW_ERROR_##sym,
  73   foreach_l2_xcrw_error
  74 #undef _
  75   L2_XCRW_N_ERROR,
  76 } l2_xcrw_error_t;
  77
  78 #endif /* __included_l2_xcrw_h__ */