root/drivers/net/ethernet/mellanox/mlx5/core/en_tc.h

INCLUDED FROM

DEFINITIONS

1. mlx5e_tc_nic_init
2. mlx5e_tc_nic_cleanup
3. mlx5e_tc_num_filters

   1 /*
   2  * Copyright (c) 2016, Mellanox Technologies. All rights reserved.
   3  *
   4  * This software is available to you under a choice of one of two
   5  * licenses.  You may choose to be licensed under the terms of the GNU
   6  * General Public License (GPL) Version 2, available from the file
   7  * COPYING in the main directory of this source tree, or the
   8  * OpenIB.org BSD license below:
   9  *
  10  *     Redistribution and use in source and binary forms, with or
  11  *     without modification, are permitted provided that the following
  12  *     conditions are met:
  13  *
  14  *      - Redistributions of source code must retain the above
  15  *        copyright notice, this list of conditions and the following
  16  *        disclaimer.
  17  *
  18  *      - Redistributions in binary form must reproduce the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer in the documentation and/or other materials
  21  *        provided with the distribution.
  22  *
  23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30  * SOFTWARE.
  31  */
  32 
  33 #ifndef __MLX5_EN_TC_H__
  34 #define __MLX5_EN_TC_H__
  35 
  36 #include <net/pkt_cls.h>
  37 
  38 #define MLX5E_TC_FLOW_ID_MASK 0x0000ffff
  39 
  40 #ifdef CONFIG_MLX5_ESWITCH
  41 
  42 enum {
  43         MLX5E_TC_FLAG_INGRESS_BIT,
  44         MLX5E_TC_FLAG_EGRESS_BIT,
  45         MLX5E_TC_FLAG_NIC_OFFLOAD_BIT,
  46         MLX5E_TC_FLAG_ESW_OFFLOAD_BIT,
  47         MLX5E_TC_FLAG_LAST_EXPORTED_BIT = MLX5E_TC_FLAG_ESW_OFFLOAD_BIT,
  48 };
  49 
  50 #define MLX5_TC_FLAG(flag) BIT(MLX5E_TC_FLAG_##flag##_BIT)
  51 
  52 int mlx5e_tc_nic_init(struct mlx5e_priv *priv);
  53 void mlx5e_tc_nic_cleanup(struct mlx5e_priv *priv);
  54 
  55 int mlx5e_tc_esw_init(struct rhashtable *tc_ht);
  56 void mlx5e_tc_esw_cleanup(struct rhashtable *tc_ht);
  57 
  58 int mlx5e_configure_flower(struct net_device *dev, struct mlx5e_priv *priv,
  59                            struct flow_cls_offload *f, unsigned long flags);
  60 int mlx5e_delete_flower(struct net_device *dev, struct mlx5e_priv *priv,
  61                         struct flow_cls_offload *f, unsigned long flags);
  62 
  63 int mlx5e_stats_flower(struct net_device *dev, struct mlx5e_priv *priv,
  64                        struct flow_cls_offload *f, unsigned long flags);
  65 
  66 int mlx5e_tc_configure_matchall(struct mlx5e_priv *priv,
  67                                 struct tc_cls_matchall_offload *f);
  68 int mlx5e_tc_delete_matchall(struct mlx5e_priv *priv,
  69                              struct tc_cls_matchall_offload *f);
  70 void mlx5e_tc_stats_matchall(struct mlx5e_priv *priv,
  71                              struct tc_cls_matchall_offload *ma);
  72 
  73 struct mlx5e_encap_entry;
  74 void mlx5e_tc_encap_flows_add(struct mlx5e_priv *priv,
  75                               struct mlx5e_encap_entry *e,
  76                               struct list_head *flow_list);
  77 void mlx5e_tc_encap_flows_del(struct mlx5e_priv *priv,
  78                               struct mlx5e_encap_entry *e,
  79                               struct list_head *flow_list);
  80 bool mlx5e_encap_take(struct mlx5e_encap_entry *e);
  81 void mlx5e_encap_put(struct mlx5e_priv *priv, struct mlx5e_encap_entry *e);
  82 
  83 void mlx5e_take_all_encap_flows(struct mlx5e_encap_entry *e, struct list_head *flow_list);
  84 void mlx5e_put_encap_flow_list(struct mlx5e_priv *priv, struct list_head *flow_list);
  85 
  86 struct mlx5e_neigh_hash_entry;
  87 void mlx5e_tc_update_neigh_used_value(struct mlx5e_neigh_hash_entry *nhe);
  88 
  89 int mlx5e_tc_num_filters(struct mlx5e_priv *priv, unsigned long flags);
  90 
  91 void mlx5e_tc_reoffload_flows_work(struct work_struct *work);
  92 
  93 bool mlx5e_is_valid_eswitch_fwd_dev(struct mlx5e_priv *priv,
  94                                     struct net_device *out_dev);
  95 
  96 #else /* CONFIG_MLX5_ESWITCH */
  97 static inline int  mlx5e_tc_nic_init(struct mlx5e_priv *priv) { return 0; }
  98 static inline void mlx5e_tc_nic_cleanup(struct mlx5e_priv *priv) {}
  99 static inline int  mlx5e_tc_num_filters(struct mlx5e_priv *priv,
 100                                         unsigned long flags)
 101 {
 102         return 0;
 103 }
 104 #endif
 105 
 106 #endif /* __MLX5_EN_TC_H__ */