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 MLX5_FLOW_TABLE_TERMINATION = BIT(2),
51 MLX5_FLOW_TABLE_UNMANAGED = BIT(3),
52};
53
54#define LEFTOVERS_RULE_NUM 2
55static inline void build_leftovers_ft_param(int *priority,
56 int *n_ent,
57 int *n_grp)
58{
59 *priority = 0; /* Priority of leftovers_prio-0 */
60 *n_ent = LEFTOVERS_RULE_NUM;
61 *n_grp = LEFTOVERS_RULE_NUM;
62}
63
64enum mlx5_flow_namespace_type {
65 MLX5_FLOW_NAMESPACE_BYPASS,
66 MLX5_FLOW_NAMESPACE_LAG,
67 MLX5_FLOW_NAMESPACE_OFFLOADS,
68 MLX5_FLOW_NAMESPACE_ETHTOOL,
69 MLX5_FLOW_NAMESPACE_KERNEL,
70 MLX5_FLOW_NAMESPACE_LEFTOVERS,
71 MLX5_FLOW_NAMESPACE_ANCHOR,
72 MLX5_FLOW_NAMESPACE_FDB,
73 MLX5_FLOW_NAMESPACE_ESW_EGRESS,
74 MLX5_FLOW_NAMESPACE_ESW_INGRESS,
75 MLX5_FLOW_NAMESPACE_SNIFFER_RX,
76 MLX5_FLOW_NAMESPACE_SNIFFER_TX,
77 MLX5_FLOW_NAMESPACE_EGRESS,
78 MLX5_FLOW_NAMESPACE_RDMA_RX,
79 MLX5_FLOW_NAMESPACE_RDMA_RX_KERNEL,
80};
81
82enum {
83 FDB_BYPASS_PATH,
84 FDB_TC_OFFLOAD,
85 FDB_FT_OFFLOAD,
86 FDB_SLOW_PATH,
87};
88
89struct mlx5_pkt_reformat;
90struct mlx5_modify_hdr;
91struct mlx5_flow_table;
92struct mlx5_flow_group;
93struct mlx5_flow_namespace;
94struct mlx5_flow_handle;
95
96enum {
97 FLOW_CONTEXT_HAS_TAG = BIT(0),
98};
99
100struct mlx5_flow_context {
101 u32 flags;
102 u32 flow_tag;
103 u32 flow_source;
104};
105
106struct mlx5_flow_spec {
107 u8 match_criteria_enable;
108 u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)];
109 u32 match_value[MLX5_ST_SZ_DW(fte_match_param)];
110 struct mlx5_flow_context flow_context;
111};
112
113enum {
114 MLX5_FLOW_DEST_VPORT_VHCA_ID = BIT(0),
115 MLX5_FLOW_DEST_VPORT_REFORMAT_ID = BIT(1),
116};
117
118struct mlx5_flow_destination {
119 enum mlx5_flow_destination_type type;
120 union {
121 u32 tir_num;
122 u32 ft_num;
123 struct mlx5_flow_table *ft;
124 u32 counter_id;
125 struct {
126 u16 num;
127 u16 vhca_id;
128 struct mlx5_pkt_reformat *pkt_reformat;
129 u8 flags;
130 } vport;
131 };
132};
133
134struct mod_hdr_tbl {
135 struct mutex lock; /* protects hlist */
136 DECLARE_HASHTABLE(hlist, 8);
137};
138
139struct mlx5_flow_namespace *
140mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n);
141struct mlx5_flow_namespace *
142mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
143 enum mlx5_flow_namespace_type type);
144struct mlx5_flow_namespace *
145mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev,
146 enum mlx5_flow_namespace_type type,
147 int vport);
148
149struct mlx5_flow_table_attr {
150 int prio;
151 int max_fte;
152 u32 level;
153 u32 flags;
154 struct mlx5_flow_table *next_ft;
155
156 struct {
157 int max_num_groups;
158 int num_reserved_entries;
159 } autogroup;
160};
161
162struct mlx5_flow_table *
163mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
164 struct mlx5_flow_table_attr *ft_attr);
165
166struct mlx5_flow_table *
167mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
168 struct mlx5_flow_table_attr *ft_attr);
169
170struct mlx5_flow_table *
171mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
172 int prio,
173 int num_flow_table_entries,
174 u32 level, u16 vport);
175struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
176 struct mlx5_flow_namespace *ns,
177 int prio, u32 level);
178int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
179
180/* inbox should be set with the following values:
181 * start_flow_index
182 * end_flow_index
183 * match_criteria_enable
184 * match_criteria
185 */
186struct mlx5_flow_group *
187mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
188void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
189
190struct mlx5_fs_vlan {
191 u16 ethtype;
192 u16 vid;
193 u8 prio;
194};
195
196#define MLX5_FS_VLAN_DEPTH 2
197
198enum {
199 FLOW_ACT_NO_APPEND = BIT(0),
200 FLOW_ACT_IGNORE_FLOW_LEVEL = BIT(1),
201};
202
203struct mlx5_flow_act {
204 u32 action;
205 struct mlx5_modify_hdr *modify_hdr;
206 struct mlx5_pkt_reformat *pkt_reformat;
207 uintptr_t esp_id;
208 u32 flags;
209 struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH];
210 struct ib_counters *counters;
211};
212
213#define MLX5_DECLARE_FLOW_ACT(name) \
214 struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\
215 .flags = 0, }
216
217/* Single destination per rule.
218 * Group ID is implied by the match criteria.
219 */
220struct mlx5_flow_handle *
221mlx5_add_flow_rules(struct mlx5_flow_table *ft,
222 const struct mlx5_flow_spec *spec,
223 struct mlx5_flow_act *flow_act,
224 struct mlx5_flow_destination *dest,
225 int num_dest);
226void mlx5_del_flow_rules(struct mlx5_flow_handle *fr);
227
228int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler,
229 struct mlx5_flow_destination *new_dest,
230 struct mlx5_flow_destination *old_dest);
231
232struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging);
233void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
234u64 mlx5_fc_query_lastuse(struct mlx5_fc *counter);
235void mlx5_fc_query_cached(struct mlx5_fc *counter,
236 u64 *bytes, u64 *packets, u64 *lastuse);
237int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter,
238 u64 *packets, u64 *bytes);
239u32 mlx5_fc_id(struct mlx5_fc *counter);
240
241int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
242int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
243
244struct mlx5_modify_hdr *mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
245 u8 ns_type, u8 num_actions,
246 void *modify_actions);
247void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev,
248 struct mlx5_modify_hdr *modify_hdr);
249
250struct mlx5_pkt_reformat *mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev,
251 int reformat_type,
252 size_t size,
253 void *reformat_data,
254 enum mlx5_flow_namespace_type ns_type);
255void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev,
256 struct mlx5_pkt_reformat *reformat);
257
258#endif