Linux kernel mirror (for testing)
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1/*
2 * Copyright (c) 2015, 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_FS_
34#define _MLX5_FS_
35
36#include <linux/mlx5/driver.h>
37#include <linux/mlx5/mlx5_ifc.h>
38
39#define MLX5_FS_DEFAULT_FLOW_TAG 0x0
40
41#define LEFTOVERS_RULE_NUM 2
42static inline void build_leftovers_ft_param(int *priority,
43 int *n_ent,
44 int *n_grp)
45{
46 *priority = 0; /* Priority of leftovers_prio-0 */
47 *n_ent = LEFTOVERS_RULE_NUM;
48 *n_grp = LEFTOVERS_RULE_NUM;
49}
50
51enum mlx5_flow_namespace_type {
52 MLX5_FLOW_NAMESPACE_BYPASS,
53 MLX5_FLOW_NAMESPACE_KERNEL,
54 MLX5_FLOW_NAMESPACE_LEFTOVERS,
55 MLX5_FLOW_NAMESPACE_FDB,
56};
57
58struct mlx5_flow_table;
59struct mlx5_flow_group;
60struct mlx5_flow_rule;
61struct mlx5_flow_namespace;
62
63struct mlx5_flow_destination {
64 enum mlx5_flow_destination_type type;
65 union {
66 u32 tir_num;
67 struct mlx5_flow_table *ft;
68 u32 vport_num;
69 };
70};
71
72struct mlx5_flow_namespace *
73mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
74 enum mlx5_flow_namespace_type type);
75
76struct mlx5_flow_table *
77mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
78 int prio,
79 int num_flow_table_entries,
80 int max_num_groups);
81
82struct mlx5_flow_table *
83mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
84 int prio,
85 int num_flow_table_entries);
86int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
87
88/* inbox should be set with the following values:
89 * start_flow_index
90 * end_flow_index
91 * match_criteria_enable
92 * match_criteria
93 */
94struct mlx5_flow_group *
95mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
96void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
97
98/* Single destination per rule.
99 * Group ID is implied by the match criteria.
100 */
101struct mlx5_flow_rule *
102mlx5_add_flow_rule(struct mlx5_flow_table *ft,
103 u8 match_criteria_enable,
104 u32 *match_criteria,
105 u32 *match_value,
106 u32 action,
107 u32 flow_tag,
108 struct mlx5_flow_destination *dest);
109void mlx5_del_flow_rule(struct mlx5_flow_rule *fr);
110
111#endif