Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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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};
77
78struct mlx5_flow_table;
79struct mlx5_flow_group;
80struct mlx5_flow_namespace;
81struct mlx5_flow_handle;
82
83struct mlx5_flow_spec {
84 u8 match_criteria_enable;
85 u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)];
86 u32 match_value[MLX5_ST_SZ_DW(fte_match_param)];
87};
88
89enum {
90 MLX5_FLOW_DEST_VPORT_VHCA_ID = BIT(0),
91 MLX5_FLOW_DEST_VPORT_REFORMAT_ID = BIT(1),
92};
93
94struct mlx5_flow_destination {
95 enum mlx5_flow_destination_type type;
96 union {
97 u32 tir_num;
98 u32 ft_num;
99 struct mlx5_flow_table *ft;
100 u32 counter_id;
101 struct {
102 u16 num;
103 u16 vhca_id;
104 u32 reformat_id;
105 u8 flags;
106 } vport;
107 };
108};
109
110struct mlx5_flow_namespace *
111mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n);
112struct mlx5_flow_namespace *
113mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
114 enum mlx5_flow_namespace_type type);
115struct mlx5_flow_namespace *
116mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev,
117 enum mlx5_flow_namespace_type type,
118 int vport);
119
120struct mlx5_flow_table *
121mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
122 int prio,
123 int num_flow_table_entries,
124 int max_num_groups,
125 u32 level,
126 u32 flags);
127
128struct mlx5_flow_table_attr {
129 int prio;
130 int max_fte;
131 u32 level;
132 u32 flags;
133};
134
135struct mlx5_flow_table *
136mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
137 struct mlx5_flow_table_attr *ft_attr);
138
139struct mlx5_flow_table *
140mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
141 int prio,
142 int num_flow_table_entries,
143 u32 level, u16 vport);
144struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
145 struct mlx5_flow_namespace *ns,
146 int prio, u32 level);
147int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
148
149/* inbox should be set with the following values:
150 * start_flow_index
151 * end_flow_index
152 * match_criteria_enable
153 * match_criteria
154 */
155struct mlx5_flow_group *
156mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
157void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
158
159struct mlx5_fs_vlan {
160 u16 ethtype;
161 u16 vid;
162 u8 prio;
163};
164
165#define MLX5_FS_VLAN_DEPTH 2
166
167enum {
168 FLOW_ACT_HAS_TAG = BIT(0),
169 FLOW_ACT_NO_APPEND = BIT(1),
170};
171
172struct mlx5_flow_act {
173 u32 action;
174 u32 flow_tag;
175 u32 reformat_id;
176 u32 modify_id;
177 uintptr_t esp_id;
178 u32 flags;
179 struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH];
180 struct ib_counters *counters;
181};
182
183#define MLX5_DECLARE_FLOW_ACT(name) \
184 struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\
185 .flow_tag = MLX5_FS_DEFAULT_FLOW_TAG, \
186 .reformat_id = 0, \
187 .modify_id = 0, \
188 .flags = 0, }
189
190/* Single destination per rule.
191 * Group ID is implied by the match criteria.
192 */
193struct mlx5_flow_handle *
194mlx5_add_flow_rules(struct mlx5_flow_table *ft,
195 struct mlx5_flow_spec *spec,
196 struct mlx5_flow_act *flow_act,
197 struct mlx5_flow_destination *dest,
198 int num_dest);
199void mlx5_del_flow_rules(struct mlx5_flow_handle *fr);
200
201int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler,
202 struct mlx5_flow_destination *new_dest,
203 struct mlx5_flow_destination *old_dest);
204
205struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging);
206void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
207void mlx5_fc_query_cached(struct mlx5_fc *counter,
208 u64 *bytes, u64 *packets, u64 *lastuse);
209int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter,
210 u64 *packets, u64 *bytes);
211u32 mlx5_fc_id(struct mlx5_fc *counter);
212
213int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
214int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
215
216int mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
217 u8 namespace, u8 num_actions,
218 void *modify_actions, u32 *modify_header_id);
219void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev,
220 u32 modify_header_id);
221
222int mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev,
223 int reformat_type,
224 size_t size,
225 void *reformat_data,
226 enum mlx5_flow_namespace_type namespace,
227 u32 *packet_reformat_id);
228void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev,
229 u32 packet_reformat_id);
230
231#endif