drivers/net/ethernet/mellanox/mlxsw/spectrum_mr.h

   1 /*
   2  * drivers/net/ethernet/mellanox/mlxsw/spectrum_mr.h
   3  * Copyright (c) 2017 Mellanox Technologies. All rights reserved.
   4  * Copyright (c) 2017 Yotam Gigi <yotamg@mellanox.com>
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are met:
   8  *
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. Neither the names of the copyright holders nor the names of its
  15  *    contributors may be used to endorse or promote products derived from
  16  *    this software without specific prior written permission.
  17  *
  18  * Alternatively, this software may be distributed under the terms of the
  19  * GNU General Public License ("GPL") version 2 as published by the Free
  20  * Software Foundation.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  23  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  26  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  32  * POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 #ifndef _MLXSW_SPECTRUM_MCROUTER_H
  36 #define _MLXSW_SPECTRUM_MCROUTER_H
  37
  38 #include <linux/mroute.h>
  39 #include "spectrum_router.h"
  40 #include "spectrum.h"
  41
  42 enum mlxsw_sp_mr_route_action {
  43         MLXSW_SP_MR_ROUTE_ACTION_FORWARD,
  44         MLXSW_SP_MR_ROUTE_ACTION_TRAP,
  45         MLXSW_SP_MR_ROUTE_ACTION_TRAP_AND_FORWARD,
  46 };
  47
  48 enum mlxsw_sp_mr_route_prio {
  49         MLXSW_SP_MR_ROUTE_PRIO_SG,
  50         MLXSW_SP_MR_ROUTE_PRIO_STARG,
  51         MLXSW_SP_MR_ROUTE_PRIO_CATCHALL,
  52         __MLXSW_SP_MR_ROUTE_PRIO_MAX
  53 };
  54
  55 #define MLXSW_SP_MR_ROUTE_PRIO_MAX (__MLXSW_SP_MR_ROUTE_PRIO_MAX - 1)
  56
  57 struct mlxsw_sp_mr_route_key {
  58         int vrid;
  59         enum mlxsw_sp_l3proto proto;
  60         union mlxsw_sp_l3addr group;
  61         union mlxsw_sp_l3addr group_mask;
  62         union mlxsw_sp_l3addr source;
  63         union mlxsw_sp_l3addr source_mask;
  64 };
  65
  66 struct mlxsw_sp_mr_route_info {
  67         enum mlxsw_sp_mr_route_action route_action;
  68         u16 irif_index;
  69         u16 *erif_indices;
  70         size_t erif_num;
  71         u16 min_mtu;
  72 };
  73
  74 struct mlxsw_sp_mr_route_params {
  75         struct mlxsw_sp_mr_route_key key;
  76         struct mlxsw_sp_mr_route_info value;
  77         enum mlxsw_sp_mr_route_prio prio;
  78 };
  79
  80 struct mlxsw_sp_mr_ops {
  81         int priv_size;
  82         int route_priv_size;
  83         int (*init)(struct mlxsw_sp *mlxsw_sp, void *priv);
  84         int (*route_create)(struct mlxsw_sp *mlxsw_sp, void *priv,
  85                             void *route_priv,
  86                             struct mlxsw_sp_mr_route_params *route_params);
  87         int (*route_update)(struct mlxsw_sp *mlxsw_sp, void *route_priv,
  88                             struct mlxsw_sp_mr_route_info *route_info);
  89         int (*route_stats)(struct mlxsw_sp *mlxsw_sp, void *route_priv,
  90                            u64 *packets, u64 *bytes);
  91         int (*route_action_update)(struct mlxsw_sp *mlxsw_sp, void *route_priv,
  92                                    enum mlxsw_sp_mr_route_action route_action);
  93         int (*route_min_mtu_update)(struct mlxsw_sp *mlxsw_sp, void *route_priv,
  94                                     u16 min_mtu);
  95         int (*route_irif_update)(struct mlxsw_sp *mlxsw_sp, void *route_priv,
  96                                  u16 irif_index);
  97         int (*route_erif_add)(struct mlxsw_sp *mlxsw_sp, void *route_priv,
  98                               u16 erif_index);
  99         int (*route_erif_del)(struct mlxsw_sp *mlxsw_sp, void *route_priv,
 100                               u16 erif_index);
 101         void (*route_destroy)(struct mlxsw_sp *mlxsw_sp, void *priv,
 102                               void *route_priv);
 103         void (*fini)(void *priv);
 104 };
 105
 106 struct mlxsw_sp_mr;
 107 struct mlxsw_sp_mr_table;
 108
 109 int mlxsw_sp_mr_init(struct mlxsw_sp *mlxsw_sp,
 110                      const struct mlxsw_sp_mr_ops *mr_ops);
 111 void mlxsw_sp_mr_fini(struct mlxsw_sp *mlxsw_sp);
 112 int mlxsw_sp_mr_route4_add(struct mlxsw_sp_mr_table *mr_table,
 113                            struct mfc_cache *mfc, bool replace);
 114 void mlxsw_sp_mr_route4_del(struct mlxsw_sp_mr_table *mr_table,
 115                             struct mfc_cache *mfc);
 116 int mlxsw_sp_mr_vif_add(struct mlxsw_sp_mr_table *mr_table,
 117                         struct net_device *dev, vifi_t vif_index,
 118                         unsigned long vif_flags,
 119                         const struct mlxsw_sp_rif *rif);
 120 void mlxsw_sp_mr_vif_del(struct mlxsw_sp_mr_table *mr_table, vifi_t vif_index);
 121 int mlxsw_sp_mr_rif_add(struct mlxsw_sp_mr_table *mr_table,
 122                         const struct mlxsw_sp_rif *rif);
 123 void mlxsw_sp_mr_rif_del(struct mlxsw_sp_mr_table *mr_table,
 124                          const struct mlxsw_sp_rif *rif);
 125 void mlxsw_sp_mr_rif_mtu_update(struct mlxsw_sp_mr_table *mr_table,
 126                                 const struct mlxsw_sp_rif *rif, int mtu);
 127 struct mlxsw_sp_mr_table *mlxsw_sp_mr_table_create(struct mlxsw_sp *mlxsw_sp,
 128                                                    u32 tb_id,
 129                                                    enum mlxsw_sp_l3proto proto);
 130 void mlxsw_sp_mr_table_destroy(struct mlxsw_sp_mr_table *mr_table);
 131 void mlxsw_sp_mr_table_flush(struct mlxsw_sp_mr_table *mr_table);
 132 bool mlxsw_sp_mr_table_empty(const struct mlxsw_sp_mr_table *mr_table);
 133
 134 #endif