Linux kernel mirror (for testing)
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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 MLX5_FLOW_CONTEXT_ACTION_ENCRYPT = 1 << 17,
44 MLX5_FLOW_CONTEXT_ACTION_DECRYPT = 1 << 18,
45};
46
47enum {
48 MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT = BIT(0),
49 MLX5_FLOW_TABLE_TUNNEL_EN_DECAP = BIT(1),
50};
51
52#define LEFTOVERS_RULE_NUM 2
53static inline void build_leftovers_ft_param(int *priority,
54 int *n_ent,
55 int *n_grp)
56{
57 *priority = 0; /* Priority of leftovers_prio-0 */
58 *n_ent = LEFTOVERS_RULE_NUM;
59 *n_grp = LEFTOVERS_RULE_NUM;
60}
61
62enum mlx5_flow_namespace_type {
63 MLX5_FLOW_NAMESPACE_BYPASS,
64 MLX5_FLOW_NAMESPACE_LAG,
65 MLX5_FLOW_NAMESPACE_OFFLOADS,
66 MLX5_FLOW_NAMESPACE_ETHTOOL,
67 MLX5_FLOW_NAMESPACE_KERNEL,
68 MLX5_FLOW_NAMESPACE_LEFTOVERS,
69 MLX5_FLOW_NAMESPACE_ANCHOR,
70 MLX5_FLOW_NAMESPACE_FDB,
71 MLX5_FLOW_NAMESPACE_ESW_EGRESS,
72 MLX5_FLOW_NAMESPACE_ESW_INGRESS,
73 MLX5_FLOW_NAMESPACE_SNIFFER_RX,
74 MLX5_FLOW_NAMESPACE_SNIFFER_TX,
75 MLX5_FLOW_NAMESPACE_EGRESS,
76 MLX5_FLOW_NAMESPACE_RDMA_RX,
77};
78
79enum {
80 FDB_BYPASS_PATH,
81 FDB_FAST_PATH,
82 FDB_SLOW_PATH,
83};
84
85struct mlx5_flow_table;
86struct mlx5_flow_group;
87struct mlx5_flow_namespace;
88struct mlx5_flow_handle;
89
90struct mlx5_flow_spec {
91 u8 match_criteria_enable;
92 u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)];
93 u32 match_value[MLX5_ST_SZ_DW(fte_match_param)];
94};
95
96enum {
97 MLX5_FLOW_DEST_VPORT_VHCA_ID = BIT(0),
98 MLX5_FLOW_DEST_VPORT_REFORMAT_ID = BIT(1),
99};
100
101struct mlx5_flow_destination {
102 enum mlx5_flow_destination_type type;
103 union {
104 u32 tir_num;
105 u32 ft_num;
106 struct mlx5_flow_table *ft;
107 u32 counter_id;
108 struct {
109 u16 num;
110 u16 vhca_id;
111 u32 reformat_id;
112 u8 flags;
113 } vport;
114 };
115};
116
117struct mlx5_flow_namespace *
118mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n);
119struct mlx5_flow_namespace *
120mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
121 enum mlx5_flow_namespace_type type);
122struct mlx5_flow_namespace *
123mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev,
124 enum mlx5_flow_namespace_type type,
125 int vport);
126
127struct mlx5_flow_table *
128mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
129 int prio,
130 int num_flow_table_entries,
131 int max_num_groups,
132 u32 level,
133 u32 flags);
134
135struct mlx5_flow_table_attr {
136 int prio;
137 int max_fte;
138 u32 level;
139 u32 flags;
140};
141
142struct mlx5_flow_table *
143mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
144 struct mlx5_flow_table_attr *ft_attr);
145
146struct mlx5_flow_table *
147mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
148 int prio,
149 int num_flow_table_entries,
150 u32 level, u16 vport);
151struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
152 struct mlx5_flow_namespace *ns,
153 int prio, u32 level);
154int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
155
156/* inbox should be set with the following values:
157 * start_flow_index
158 * end_flow_index
159 * match_criteria_enable
160 * match_criteria
161 */
162struct mlx5_flow_group *
163mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
164void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
165
166struct mlx5_fs_vlan {
167 u16 ethtype;
168 u16 vid;
169 u8 prio;
170};
171
172#define MLX5_FS_VLAN_DEPTH 2
173
174enum {
175 FLOW_ACT_HAS_TAG = BIT(0),
176 FLOW_ACT_NO_APPEND = BIT(1),
177};
178
179struct mlx5_flow_act {
180 u32 action;
181 u32 flow_tag;
182 u32 reformat_id;
183 u32 modify_id;
184 uintptr_t esp_id;
185 u32 flags;
186 struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH];
187 struct ib_counters *counters;
188};
189
190#define MLX5_DECLARE_FLOW_ACT(name) \
191 struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\
192 .flow_tag = MLX5_FS_DEFAULT_FLOW_TAG, \
193 .reformat_id = 0, \
194 .modify_id = 0, \
195 .flags = 0, }
196
197/* Single destination per rule.
198 * Group ID is implied by the match criteria.
199 */
200struct mlx5_flow_handle *
201mlx5_add_flow_rules(struct mlx5_flow_table *ft,
202 struct mlx5_flow_spec *spec,
203 struct mlx5_flow_act *flow_act,
204 struct mlx5_flow_destination *dest,
205 int num_dest);
206void mlx5_del_flow_rules(struct mlx5_flow_handle *fr);
207
208int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler,
209 struct mlx5_flow_destination *new_dest,
210 struct mlx5_flow_destination *old_dest);
211
212struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging);
213void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
214void mlx5_fc_query_cached(struct mlx5_fc *counter,
215 u64 *bytes, u64 *packets, u64 *lastuse);
216int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter,
217 u64 *packets, u64 *bytes);
218u32 mlx5_fc_id(struct mlx5_fc *counter);
219
220int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
221int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
222
223int mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
224 u8 namespace, u8 num_actions,
225 void *modify_actions, u32 *modify_header_id);
226void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev,
227 u32 modify_header_id);
228
229int mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev,
230 int reformat_type,
231 size_t size,
232 void *reformat_data,
233 enum mlx5_flow_namespace_type namespace,
234 u32 *packet_reformat_id);
235void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev,
236 u32 packet_reformat_id);
237
238#endif