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 enum {
42 MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO = 1 << 16,
43 MLX5_FLOW_CONTEXT_ACTION_ENCRYPT = 1 << 17,
44 MLX5_FLOW_CONTEXT_ACTION_DECRYPT = 1 << 18,
45 };
46
47 enum {
48 MLX5_FLOW_TABLE_TUNNEL_EN = BIT(0),
49 };
50
51 #define LEFTOVERS_RULE_NUM 2
build_leftovers_ft_param(int * priority,int * n_ent,int * n_grp)52 static inline void build_leftovers_ft_param(int *priority,
53 int *n_ent,
54 int *n_grp)
55 {
56 *priority = 0; /* Priority of leftovers_prio-0 */
57 *n_ent = LEFTOVERS_RULE_NUM;
58 *n_grp = LEFTOVERS_RULE_NUM;
59 }
60
61 enum mlx5_flow_namespace_type {
62 MLX5_FLOW_NAMESPACE_BYPASS,
63 MLX5_FLOW_NAMESPACE_LAG,
64 MLX5_FLOW_NAMESPACE_OFFLOADS,
65 MLX5_FLOW_NAMESPACE_ETHTOOL,
66 MLX5_FLOW_NAMESPACE_KERNEL,
67 MLX5_FLOW_NAMESPACE_LEFTOVERS,
68 MLX5_FLOW_NAMESPACE_ANCHOR,
69 MLX5_FLOW_NAMESPACE_FDB,
70 MLX5_FLOW_NAMESPACE_ESW_EGRESS,
71 MLX5_FLOW_NAMESPACE_ESW_INGRESS,
72 MLX5_FLOW_NAMESPACE_SNIFFER_RX,
73 MLX5_FLOW_NAMESPACE_SNIFFER_TX,
74 MLX5_FLOW_NAMESPACE_EGRESS,
75 };
76
77 struct mlx5_flow_table;
78 struct mlx5_flow_group;
79 struct mlx5_flow_namespace;
80 struct mlx5_flow_handle;
81
82 struct mlx5_flow_spec {
83 u8 match_criteria_enable;
84 u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)];
85 u32 match_value[MLX5_ST_SZ_DW(fte_match_param)];
86 };
87
88 struct mlx5_flow_destination {
89 enum mlx5_flow_destination_type type;
90 union {
91 u32 tir_num;
92 u32 ft_num;
93 struct mlx5_flow_table *ft;
94 struct mlx5_fc *counter;
95 struct {
96 u16 num;
97 u16 vhca_id;
98 bool vhca_id_valid;
99 } vport;
100 };
101 };
102
103 struct mlx5_flow_namespace *
104 mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
105 enum mlx5_flow_namespace_type type);
106 struct mlx5_flow_namespace *
107 mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev,
108 enum mlx5_flow_namespace_type type,
109 int vport);
110
111 struct mlx5_flow_table *
112 mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
113 int prio,
114 int num_flow_table_entries,
115 int max_num_groups,
116 u32 level,
117 u32 flags);
118
119 struct mlx5_flow_table_attr {
120 int prio;
121 int max_fte;
122 u32 level;
123 u32 flags;
124 };
125
126 struct mlx5_flow_table *
127 mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
128 struct mlx5_flow_table_attr *ft_attr);
129
130 struct mlx5_flow_table *
131 mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
132 int prio,
133 int num_flow_table_entries,
134 u32 level, u16 vport);
135 struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
136 struct mlx5_flow_namespace *ns,
137 int prio, u32 level);
138 int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
139
140 /* inbox should be set with the following values:
141 * start_flow_index
142 * end_flow_index
143 * match_criteria_enable
144 * match_criteria
145 */
146 struct mlx5_flow_group *
147 mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
148 void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
149
150 struct mlx5_fs_vlan {
151 u16 ethtype;
152 u16 vid;
153 u8 prio;
154 };
155
156 #define MLX5_FS_VLAN_DEPTH 2
157
158 struct mlx5_flow_act {
159 u32 action;
160 bool has_flow_tag;
161 u32 flow_tag;
162 u32 encap_id;
163 u32 modify_id;
164 uintptr_t esp_id;
165 struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH];
166 struct ib_counters *counters;
167 };
168
169 #define MLX5_DECLARE_FLOW_ACT(name) \
170 struct mlx5_flow_act name = {MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\
171 MLX5_FS_DEFAULT_FLOW_TAG, 0, 0}
172
173 /* Single destination per rule.
174 * Group ID is implied by the match criteria.
175 */
176 struct mlx5_flow_handle *
177 mlx5_add_flow_rules(struct mlx5_flow_table *ft,
178 struct mlx5_flow_spec *spec,
179 struct mlx5_flow_act *flow_act,
180 struct mlx5_flow_destination *dest,
181 int num_dest);
182 void mlx5_del_flow_rules(struct mlx5_flow_handle *fr);
183
184 int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler,
185 struct mlx5_flow_destination *new_dest,
186 struct mlx5_flow_destination *old_dest);
187
188 struct mlx5_fc *mlx5_flow_rule_counter(struct mlx5_flow_handle *handler);
189 struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging);
190 void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
191 void mlx5_fc_query_cached(struct mlx5_fc *counter,
192 u64 *bytes, u64 *packets, u64 *lastuse);
193 int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter,
194 u64 *packets, u64 *bytes);
195
196 int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
197 int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
198
199 #endif
200
