src/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   /*
  31    * Let: rewrite_header.sw_if_index = tx_fib_index or ~0.
  32    *      rewrite_header.next_index = L2_XCRW_NEXT_XXX
  33    */
  34   vnet_declare_rewrite (VLIB_BUFFER_PRE_DATA_SIZE);
  35 } l2_xcrw_adjacency_t;
  36
  37 typedef struct
  38 {
  39   /* L2 interface */
  40   u32 l2_sw_if_index;
  41
  42   /* Tunnel interface */
  43   u32 tunnel_sw_if_index;       /* This field remains set in freed pool elts */
  44
  45 } l2_xcrw_tunnel_t;
  46
  47 typedef struct
  48 {
  49   u32 cached_next_index;
  50
  51   /* Vector of cross-connect rewrites */
  52   l2_xcrw_adjacency_t *adj_by_sw_if_index;
  53
  54   /* Pool of xcrw tunnels */
  55   l2_xcrw_tunnel_t *tunnels;
  56
  57   /* Tunnel index by tunnel sw_if_index */
  58   uword *tunnel_index_by_l2_sw_if_index;
  59
  60   /* convenience variables */
  61   vlib_main_t *vlib_main;
  62   vnet_main_t *vnet_main;
  63 } l2_xcrw_main_t;
  64
  65 typedef enum
  66 {
  67   L2_XCRW_NEXT_DROP,
  68   L2_XCRW_N_NEXT,
  69 } l2_xcrw_next_t;
  70
  71 #define foreach_l2_xcrw_error                   \
  72 _(DROP, "Packets dropped")                      \
  73 _(FWD, "Packets forwarded")
  74
  75 typedef enum
  76 {
  77 #define _(sym,str) L2_XCRW_ERROR_##sym,
  78   foreach_l2_xcrw_error
  79 #undef _
  80     L2_XCRW_N_ERROR,
  81 } l2_xcrw_error_t;
  82
  83 #endif /* __included_l2_xcrw_h__ */
  84
  85 /*
  86  * fd.io coding-style-patch-verification: ON
  87  *
  88  * Local Variables:
  89  * eval: (c-set-style "gnu")
  90  * End:
  91  */