2 * Copyright (c) 2015, Mellanox Technologies. All rights reserved.
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:
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11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
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21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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33 #ifndef _MLX5_FS_CORE_
34 #define _MLX5_FS_CORE_
36 #include <linux/mlx5/fs.h>
47 enum fs_flow_table_type
{
49 FS_FT_ESW_EGRESS_ACL
= 0x2,
50 FS_FT_ESW_INGRESS_ACL
= 0x3,
55 FS_FTE_STATUS_EXISTING
= 1UL << 0,
59 struct list_head list
;
60 struct list_head children
;
61 enum fs_node_type type
;
62 struct fs_node
*parent
;
64 /* lock the node for writing and traversing */
67 void (*remove_func
)(struct fs_node
*);
70 struct mlx5_flow_rule
{
72 struct mlx5_flow_destination dest_attr
;
73 /* next_ft should be accessed under chain_lock and only of
74 * destination type is FWD_NEXT_fT.
76 struct list_head next_ft
;
80 /* Type of children is mlx5_flow_group */
81 struct mlx5_flow_table
{
87 enum fs_flow_table_type type
;
90 unsigned int required_groups
;
91 unsigned int num_groups
;
93 /* Protect fwd_rules */
95 /* FWD rules that point on this flow table */
96 struct list_head fwd_rules
;
99 /* Type of children is mlx5_flow_rule */
102 u32 val
[MLX5_ST_SZ_DW(fte_match_param
)];
107 enum fs_fte_status status
;
110 /* Type of children is mlx5_flow_table/namespace */
113 unsigned int num_levels
;
114 unsigned int start_level
;
119 /* Type of children is fs_prio */
120 struct mlx5_flow_namespace
{
121 /* parent == NULL => root ns */
125 struct mlx5_flow_group_mask
{
126 u8 match_criteria_enable
;
127 u32 match_criteria
[MLX5_ST_SZ_DW(fte_match_param
)];
130 /* Type of children is fs_fte */
131 struct mlx5_flow_group
{
133 struct mlx5_flow_group_mask mask
;
140 struct mlx5_flow_root_namespace
{
141 struct mlx5_flow_namespace ns
;
142 enum fs_flow_table_type table_type
;
143 struct mlx5_core_dev
*dev
;
144 struct mlx5_flow_table
*root_ft
;
145 /* Should be held when chaining flow tables */
146 struct mutex chain_lock
;
149 int mlx5_init_fs(struct mlx5_core_dev
*dev
);
150 void mlx5_cleanup_fs(struct mlx5_core_dev
*dev
);
152 #define fs_get_obj(v, _node) {v = container_of((_node), typeof(*v), node); }
154 #define fs_list_for_each_entry(pos, root) \
155 list_for_each_entry(pos, root, node.list)
157 #define fs_list_for_each_entry_safe(pos, tmp, root) \
158 list_for_each_entry_safe(pos, tmp, root, node.list)
160 #define fs_for_each_ns_or_ft_reverse(pos, prio) \
161 list_for_each_entry_reverse(pos, &(prio)->node.children, list)
163 #define fs_for_each_ns_or_ft(pos, prio) \
164 list_for_each_entry(pos, (&(prio)->node.children), list)
166 #define fs_for_each_prio(pos, ns) \
167 fs_list_for_each_entry(pos, &(ns)->node.children)
169 #define fs_for_each_ns(pos, prio) \
170 fs_list_for_each_entry(pos, &(prio)->node.children)
172 #define fs_for_each_ft(pos, prio) \
173 fs_list_for_each_entry(pos, &(prio)->node.children)
175 #define fs_for_each_ft_safe(pos, tmp, prio) \
176 fs_list_for_each_entry_safe(pos, tmp, &(prio)->node.children)
178 #define fs_for_each_fg(pos, ft) \
179 fs_list_for_each_entry(pos, &(ft)->node.children)
181 #define fs_for_each_fte(pos, fg) \
182 fs_list_for_each_entry(pos, &(fg)->node.children)
184 #define fs_for_each_dst(pos, fte) \
185 fs_list_for_each_entry(pos, &(fte)->node.children)