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_INGRESS = BIT(0),
44 	MLX5E_TC_EGRESS  = BIT(1),
45 	MLX5E_TC_NIC_OFFLOAD = BIT(2),
46 	MLX5E_TC_ESW_OFFLOAD = BIT(3),
47 	MLX5E_TC_LAST_EXPORTED_BIT = 3,
48 };
49 
50 int mlx5e_tc_nic_init(struct mlx5e_priv *priv);
51 void mlx5e_tc_nic_cleanup(struct mlx5e_priv *priv);
52 
53 int mlx5e_tc_esw_init(struct rhashtable *tc_ht);
54 void mlx5e_tc_esw_cleanup(struct rhashtable *tc_ht);
55 
56 int mlx5e_configure_flower(struct net_device *dev, struct mlx5e_priv *priv,
57 			   struct tc_cls_flower_offload *f, int flags);
58 int mlx5e_delete_flower(struct net_device *dev, struct mlx5e_priv *priv,
59 			struct tc_cls_flower_offload *f, int flags);
60 
61 int mlx5e_stats_flower(struct net_device *dev, struct mlx5e_priv *priv,
62 		       struct tc_cls_flower_offload *f, int flags);
63 
64 struct mlx5e_encap_entry;
65 void mlx5e_tc_encap_flows_add(struct mlx5e_priv *priv,
66 			      struct mlx5e_encap_entry *e);
67 void mlx5e_tc_encap_flows_del(struct mlx5e_priv *priv,
68 			      struct mlx5e_encap_entry *e);
69 
70 struct mlx5e_neigh_hash_entry;
71 void mlx5e_tc_update_neigh_used_value(struct mlx5e_neigh_hash_entry *nhe);
72 
73 int mlx5e_tc_num_filters(struct mlx5e_priv *priv, int flags);
74 
75 void mlx5e_tc_reoffload_flows_work(struct work_struct *work);
76 
77 #else /* CONFIG_MLX5_ESWITCH */
78 static inline int  mlx5e_tc_nic_init(struct mlx5e_priv *priv) { return 0; }
79 static inline void mlx5e_tc_nic_cleanup(struct mlx5e_priv *priv) {}
80 static inline int  mlx5e_tc_num_filters(struct mlx5e_priv *priv, int flags) { return 0; }
81 #endif
82 
83 #endif /* __MLX5_EN_TC_H__ */
84