Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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
41enum {
42 MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO = 1 << 16,
43};
44
45#define LEFTOVERS_RULE_NUM 2
46static inline void build_leftovers_ft_param(int *priority,
47 int *n_ent,
48 int *n_grp)
49{
50 *priority = 0; /* Priority of leftovers_prio-0 */
51 *n_ent = LEFTOVERS_RULE_NUM;
52 *n_grp = LEFTOVERS_RULE_NUM;
53}
54
55enum mlx5_flow_namespace_type {
56 MLX5_FLOW_NAMESPACE_BYPASS,
57 MLX5_FLOW_NAMESPACE_KERNEL,
58 MLX5_FLOW_NAMESPACE_LEFTOVERS,
59 MLX5_FLOW_NAMESPACE_ANCHOR,
60 MLX5_FLOW_NAMESPACE_FDB,
61};
62
63struct mlx5_flow_table;
64struct mlx5_flow_group;
65struct mlx5_flow_rule;
66struct mlx5_flow_namespace;
67
68struct mlx5_flow_destination {
69 enum mlx5_flow_destination_type type;
70 union {
71 u32 tir_num;
72 struct mlx5_flow_table *ft;
73 u32 vport_num;
74 };
75};
76
77struct mlx5_flow_namespace *
78mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
79 enum mlx5_flow_namespace_type type);
80
81struct mlx5_flow_table *
82mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
83 int prio,
84 int num_flow_table_entries,
85 int max_num_groups);
86
87struct mlx5_flow_table *
88mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
89 int prio,
90 int num_flow_table_entries);
91int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
92
93/* inbox should be set with the following values:
94 * start_flow_index
95 * end_flow_index
96 * match_criteria_enable
97 * match_criteria
98 */
99struct mlx5_flow_group *
100mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
101void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
102
103/* Single destination per rule.
104 * Group ID is implied by the match criteria.
105 */
106struct mlx5_flow_rule *
107mlx5_add_flow_rule(struct mlx5_flow_table *ft,
108 u8 match_criteria_enable,
109 u32 *match_criteria,
110 u32 *match_value,
111 u32 action,
112 u32 flow_tag,
113 struct mlx5_flow_destination *dest);
114void mlx5_del_flow_rule(struct mlx5_flow_rule *fr);
115
116#endif