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
41#define MLX5_SET_CFG(p, f, v) MLX5_SET(create_flow_group_in, p, f, v)
42
43enum mlx5_flow_destination_type {
44 MLX5_FLOW_DESTINATION_TYPE_NONE,
45 MLX5_FLOW_DESTINATION_TYPE_VPORT,
46 MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE,
47 MLX5_FLOW_DESTINATION_TYPE_TIR,
48 MLX5_FLOW_DESTINATION_TYPE_FLOW_SAMPLER,
49 MLX5_FLOW_DESTINATION_TYPE_UPLINK,
50 MLX5_FLOW_DESTINATION_TYPE_PORT,
51 MLX5_FLOW_DESTINATION_TYPE_COUNTER,
52 MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE_NUM,
53};
54
55enum {
56 MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO = 1 << 16,
57 MLX5_FLOW_CONTEXT_ACTION_ENCRYPT = 1 << 17,
58 MLX5_FLOW_CONTEXT_ACTION_DECRYPT = 1 << 18,
59 MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS = 1 << 19,
60};
61
62enum {
63 MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT = BIT(0),
64 MLX5_FLOW_TABLE_TUNNEL_EN_DECAP = BIT(1),
65 MLX5_FLOW_TABLE_TERMINATION = BIT(2),
66 MLX5_FLOW_TABLE_UNMANAGED = BIT(3),
67 MLX5_FLOW_TABLE_OTHER_VPORT = BIT(4),
68};
69
70#define LEFTOVERS_RULE_NUM 2
71static inline void build_leftovers_ft_param(int *priority,
72 int *n_ent,
73 int *n_grp)
74{
75 *priority = 0; /* Priority of leftovers_prio-0 */
76 *n_ent = LEFTOVERS_RULE_NUM;
77 *n_grp = LEFTOVERS_RULE_NUM;
78}
79
80enum mlx5_flow_namespace_type {
81 MLX5_FLOW_NAMESPACE_BYPASS,
82 MLX5_FLOW_NAMESPACE_LAG,
83 MLX5_FLOW_NAMESPACE_OFFLOADS,
84 MLX5_FLOW_NAMESPACE_ETHTOOL,
85 MLX5_FLOW_NAMESPACE_KERNEL,
86 MLX5_FLOW_NAMESPACE_LEFTOVERS,
87 MLX5_FLOW_NAMESPACE_ANCHOR,
88 MLX5_FLOW_NAMESPACE_FDB_BYPASS,
89 MLX5_FLOW_NAMESPACE_FDB,
90 MLX5_FLOW_NAMESPACE_ESW_EGRESS,
91 MLX5_FLOW_NAMESPACE_ESW_INGRESS,
92 MLX5_FLOW_NAMESPACE_SNIFFER_RX,
93 MLX5_FLOW_NAMESPACE_SNIFFER_TX,
94 MLX5_FLOW_NAMESPACE_EGRESS,
95 MLX5_FLOW_NAMESPACE_EGRESS_KERNEL,
96 MLX5_FLOW_NAMESPACE_RDMA_RX,
97 MLX5_FLOW_NAMESPACE_RDMA_RX_KERNEL,
98 MLX5_FLOW_NAMESPACE_RDMA_TX,
99 MLX5_FLOW_NAMESPACE_PORT_SEL,
100 MLX5_FLOW_NAMESPACE_RDMA_RX_COUNTERS,
101 MLX5_FLOW_NAMESPACE_RDMA_TX_COUNTERS,
102};
103
104enum {
105 FDB_BYPASS_PATH,
106 FDB_TC_OFFLOAD,
107 FDB_FT_OFFLOAD,
108 FDB_TC_MISS,
109 FDB_BR_OFFLOAD,
110 FDB_SLOW_PATH,
111 FDB_PER_VPORT,
112};
113
114struct mlx5_pkt_reformat;
115struct mlx5_modify_hdr;
116struct mlx5_flow_definer;
117struct mlx5_flow_table;
118struct mlx5_flow_group;
119struct mlx5_flow_namespace;
120struct mlx5_flow_handle;
121
122enum {
123 FLOW_CONTEXT_HAS_TAG = BIT(0),
124};
125
126struct mlx5_flow_context {
127 u32 flags;
128 u32 flow_tag;
129 u32 flow_source;
130};
131
132struct mlx5_flow_spec {
133 u8 match_criteria_enable;
134 u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)];
135 u32 match_value[MLX5_ST_SZ_DW(fte_match_param)];
136 struct mlx5_flow_context flow_context;
137};
138
139enum {
140 MLX5_FLOW_DEST_VPORT_VHCA_ID = BIT(0),
141 MLX5_FLOW_DEST_VPORT_REFORMAT_ID = BIT(1),
142};
143
144struct mlx5_flow_destination {
145 enum mlx5_flow_destination_type type;
146 union {
147 u32 tir_num;
148 u32 ft_num;
149 struct mlx5_flow_table *ft;
150 u32 counter_id;
151 struct {
152 u16 num;
153 u16 vhca_id;
154 struct mlx5_pkt_reformat *pkt_reformat;
155 u8 flags;
156 } vport;
157 u32 sampler_id;
158 };
159};
160
161struct mod_hdr_tbl {
162 struct mutex lock; /* protects hlist */
163 DECLARE_HASHTABLE(hlist, 8);
164};
165
166struct mlx5_flow_namespace *
167mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n);
168struct mlx5_flow_namespace *
169mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
170 enum mlx5_flow_namespace_type type);
171struct mlx5_flow_namespace *
172mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev,
173 enum mlx5_flow_namespace_type type,
174 int vport);
175
176struct mlx5_flow_table_attr {
177 int prio;
178 int max_fte;
179 u32 level;
180 u32 flags;
181 u16 uid;
182 struct mlx5_flow_table *next_ft;
183
184 struct {
185 int max_num_groups;
186 int num_reserved_entries;
187 } autogroup;
188};
189
190struct mlx5_flow_table *
191mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
192 struct mlx5_flow_table_attr *ft_attr);
193
194struct mlx5_flow_table *
195mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
196 struct mlx5_flow_table_attr *ft_attr);
197
198struct mlx5_flow_table *
199mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
200 struct mlx5_flow_table_attr *ft_attr, u16 vport);
201struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
202 struct mlx5_flow_namespace *ns,
203 int prio, u32 level);
204int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
205
206/* inbox should be set with the following values:
207 * start_flow_index
208 * end_flow_index
209 * match_criteria_enable
210 * match_criteria
211 */
212struct mlx5_flow_group *
213mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
214void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
215
216struct mlx5_exe_aso {
217 u32 object_id;
218 u8 type;
219 u8 return_reg_id;
220 union {
221 u32 ctrl_data;
222 struct {
223 u8 meter_idx;
224 u8 init_color;
225 } flow_meter;
226 };
227};
228
229struct mlx5_fs_vlan {
230 u16 ethtype;
231 u16 vid;
232 u8 prio;
233};
234
235#define MLX5_FS_VLAN_DEPTH 2
236
237enum {
238 FLOW_ACT_NO_APPEND = BIT(0),
239 FLOW_ACT_IGNORE_FLOW_LEVEL = BIT(1),
240};
241
242struct mlx5_flow_act {
243 u32 action;
244 struct mlx5_modify_hdr *modify_hdr;
245 struct mlx5_pkt_reformat *pkt_reformat;
246 union {
247 u32 ipsec_obj_id;
248 uintptr_t esp_id;
249 };
250 u32 flags;
251 struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH];
252 struct ib_counters *counters;
253 struct mlx5_flow_group *fg;
254 struct mlx5_exe_aso exe_aso;
255};
256
257#define MLX5_DECLARE_FLOW_ACT(name) \
258 struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\
259 .flags = 0, }
260
261/* Single destination per rule.
262 * Group ID is implied by the match criteria.
263 */
264struct mlx5_flow_handle *
265mlx5_add_flow_rules(struct mlx5_flow_table *ft,
266 const struct mlx5_flow_spec *spec,
267 struct mlx5_flow_act *flow_act,
268 struct mlx5_flow_destination *dest,
269 int num_dest);
270void mlx5_del_flow_rules(struct mlx5_flow_handle *fr);
271
272int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler,
273 struct mlx5_flow_destination *new_dest,
274 struct mlx5_flow_destination *old_dest);
275
276struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging);
277
278/* As mlx5_fc_create() but doesn't queue stats refresh thread. */
279struct mlx5_fc *mlx5_fc_create_ex(struct mlx5_core_dev *dev, bool aging);
280
281void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
282u64 mlx5_fc_query_lastuse(struct mlx5_fc *counter);
283void mlx5_fc_query_cached(struct mlx5_fc *counter,
284 u64 *bytes, u64 *packets, u64 *lastuse);
285int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter,
286 u64 *packets, u64 *bytes);
287u32 mlx5_fc_id(struct mlx5_fc *counter);
288
289int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
290int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
291
292struct mlx5_modify_hdr *mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
293 u8 ns_type, u8 num_actions,
294 void *modify_actions);
295void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev,
296 struct mlx5_modify_hdr *modify_hdr);
297struct mlx5_flow_definer *
298mlx5_create_match_definer(struct mlx5_core_dev *dev,
299 enum mlx5_flow_namespace_type ns_type, u16 format_id,
300 u32 *match_mask);
301void mlx5_destroy_match_definer(struct mlx5_core_dev *dev,
302 struct mlx5_flow_definer *definer);
303int mlx5_get_match_definer_id(struct mlx5_flow_definer *definer);
304
305struct mlx5_pkt_reformat_params {
306 int type;
307 u8 param_0;
308 u8 param_1;
309 size_t size;
310 void *data;
311};
312
313struct mlx5_pkt_reformat *mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev,
314 struct mlx5_pkt_reformat_params *params,
315 enum mlx5_flow_namespace_type ns_type);
316void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev,
317 struct mlx5_pkt_reformat *reformat);
318
319u32 mlx5_flow_table_id(struct mlx5_flow_table *ft);
320#endif