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
43 enum 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 MLX5_FLOW_DESTINATION_TYPE_RANGE,
54 MLX5_FLOW_DESTINATION_TYPE_TABLE_TYPE,
55 };
56
57 enum {
58 MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO = 1 << 16,
59 MLX5_FLOW_CONTEXT_ACTION_ENCRYPT = 1 << 17,
60 MLX5_FLOW_CONTEXT_ACTION_DECRYPT = 1 << 18,
61 MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS = 1 << 19,
62 };
63
64 enum {
65 MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT = BIT(0),
66 MLX5_FLOW_TABLE_TUNNEL_EN_DECAP = BIT(1),
67 MLX5_FLOW_TABLE_TERMINATION = BIT(2),
68 MLX5_FLOW_TABLE_UNMANAGED = BIT(3),
69 MLX5_FLOW_TABLE_OTHER_VPORT = BIT(4),
70 };
71
72 #define LEFTOVERS_RULE_NUM 2
build_leftovers_ft_param(int * priority,int * n_ent,int * n_grp)73 static inline void build_leftovers_ft_param(int *priority,
74 int *n_ent,
75 int *n_grp)
76 {
77 *priority = 0; /* Priority of leftovers_prio-0 */
78 *n_ent = LEFTOVERS_RULE_NUM;
79 *n_grp = LEFTOVERS_RULE_NUM;
80 }
81
82 enum mlx5_flow_namespace_type {
83 MLX5_FLOW_NAMESPACE_BYPASS,
84 MLX5_FLOW_NAMESPACE_KERNEL_RX_MACSEC,
85 MLX5_FLOW_NAMESPACE_LAG,
86 MLX5_FLOW_NAMESPACE_OFFLOADS,
87 MLX5_FLOW_NAMESPACE_ETHTOOL,
88 MLX5_FLOW_NAMESPACE_KERNEL,
89 MLX5_FLOW_NAMESPACE_LEFTOVERS,
90 MLX5_FLOW_NAMESPACE_ANCHOR,
91 MLX5_FLOW_NAMESPACE_FDB_BYPASS,
92 MLX5_FLOW_NAMESPACE_FDB,
93 MLX5_FLOW_NAMESPACE_ESW_EGRESS,
94 MLX5_FLOW_NAMESPACE_ESW_INGRESS,
95 MLX5_FLOW_NAMESPACE_SNIFFER_RX,
96 MLX5_FLOW_NAMESPACE_SNIFFER_TX,
97 MLX5_FLOW_NAMESPACE_EGRESS,
98 MLX5_FLOW_NAMESPACE_EGRESS_IPSEC,
99 MLX5_FLOW_NAMESPACE_EGRESS_MACSEC,
100 MLX5_FLOW_NAMESPACE_RDMA_RX,
101 MLX5_FLOW_NAMESPACE_RDMA_RX_KERNEL,
102 MLX5_FLOW_NAMESPACE_RDMA_TX,
103 MLX5_FLOW_NAMESPACE_PORT_SEL,
104 MLX5_FLOW_NAMESPACE_RDMA_RX_COUNTERS,
105 MLX5_FLOW_NAMESPACE_RDMA_TX_COUNTERS,
106 MLX5_FLOW_NAMESPACE_RDMA_RX_IPSEC,
107 MLX5_FLOW_NAMESPACE_RDMA_TX_IPSEC,
108 MLX5_FLOW_NAMESPACE_RDMA_RX_MACSEC,
109 MLX5_FLOW_NAMESPACE_RDMA_TX_MACSEC,
110 };
111
112 enum {
113 FDB_BYPASS_PATH,
114 FDB_CRYPTO_INGRESS,
115 FDB_TC_OFFLOAD,
116 FDB_FT_OFFLOAD,
117 FDB_TC_MISS,
118 FDB_BR_OFFLOAD,
119 FDB_SLOW_PATH,
120 FDB_CRYPTO_EGRESS,
121 FDB_PER_VPORT,
122 };
123
124 struct mlx5_pkt_reformat;
125 struct mlx5_modify_hdr;
126 struct mlx5_flow_definer;
127 struct mlx5_flow_table;
128 struct mlx5_flow_group;
129 struct mlx5_flow_namespace;
130 struct mlx5_flow_handle;
131
132 enum {
133 FLOW_CONTEXT_HAS_TAG = BIT(0),
134 };
135
136 struct mlx5_flow_context {
137 u32 flags;
138 u32 flow_tag;
139 u32 flow_source;
140 };
141
142 struct mlx5_flow_spec {
143 u8 match_criteria_enable;
144 u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)];
145 u32 match_value[MLX5_ST_SZ_DW(fte_match_param)];
146 struct mlx5_flow_context flow_context;
147 };
148
149 enum {
150 MLX5_FLOW_DEST_VPORT_VHCA_ID = BIT(0),
151 MLX5_FLOW_DEST_VPORT_REFORMAT_ID = BIT(1),
152 };
153
154 enum mlx5_flow_dest_range_field {
155 MLX5_FLOW_DEST_RANGE_FIELD_PKT_LEN = 0,
156 };
157
158 struct mlx5_flow_destination {
159 enum mlx5_flow_destination_type type;
160 union {
161 u32 tir_num;
162 u32 ft_num;
163 struct mlx5_flow_table *ft;
164 u32 counter_id;
165 struct {
166 u16 num;
167 u16 vhca_id;
168 struct mlx5_pkt_reformat *pkt_reformat;
169 u8 flags;
170 } vport;
171 struct {
172 struct mlx5_flow_table *hit_ft;
173 struct mlx5_flow_table *miss_ft;
174 enum mlx5_flow_dest_range_field field;
175 u32 min;
176 u32 max;
177 } range;
178 u32 sampler_id;
179 };
180 };
181
182 struct mod_hdr_tbl {
183 struct mutex lock; /* protects hlist */
184 DECLARE_HASHTABLE(hlist, 8);
185 };
186
187 struct mlx5_flow_namespace *
188 mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n);
189 struct mlx5_flow_namespace *
190 mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
191 enum mlx5_flow_namespace_type type);
192 struct mlx5_flow_namespace *
193 mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev,
194 enum mlx5_flow_namespace_type type,
195 int vport);
196
197 struct mlx5_flow_table_attr {
198 int prio;
199 int max_fte;
200 u32 level;
201 u32 flags;
202 u16 uid;
203 struct mlx5_flow_table *next_ft;
204
205 struct {
206 int max_num_groups;
207 int num_reserved_entries;
208 } autogroup;
209 };
210
211 struct mlx5_flow_table *
212 mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
213 struct mlx5_flow_table_attr *ft_attr);
214
215 struct mlx5_flow_table *
216 mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
217 struct mlx5_flow_table_attr *ft_attr);
218
219 struct mlx5_flow_table *
220 mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
221 struct mlx5_flow_table_attr *ft_attr, u16 vport);
222 struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
223 struct mlx5_flow_namespace *ns,
224 int prio, u32 level);
225 int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
226
227 /* inbox should be set with the following values:
228 * start_flow_index
229 * end_flow_index
230 * match_criteria_enable
231 * match_criteria
232 */
233 struct mlx5_flow_group *
234 mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
235 void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
236
237 struct mlx5_exe_aso {
238 u32 object_id;
239 u8 type;
240 u8 return_reg_id;
241 union {
242 u32 ctrl_data;
243 struct {
244 u8 meter_idx;
245 u8 init_color;
246 } flow_meter;
247 };
248 };
249
250 struct mlx5_fs_vlan {
251 u16 ethtype;
252 u16 vid;
253 u8 prio;
254 };
255
256 #define MLX5_FS_VLAN_DEPTH 2
257
258 enum {
259 FLOW_ACT_NO_APPEND = BIT(0),
260 FLOW_ACT_IGNORE_FLOW_LEVEL = BIT(1),
261 };
262
263 struct mlx5_flow_act {
264 u32 action;
265 struct mlx5_modify_hdr *modify_hdr;
266 struct mlx5_pkt_reformat *pkt_reformat;
267 struct mlx5_flow_act_crypto_params {
268 u8 type;
269 u32 obj_id;
270 } crypto;
271 u32 flags;
272 struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH];
273 struct ib_counters *counters;
274 struct mlx5_flow_group *fg;
275 struct mlx5_exe_aso exe_aso;
276 };
277
278 #define MLX5_DECLARE_FLOW_ACT(name) \
279 struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\
280 .flags = 0, }
281
282 /* Single destination per rule.
283 * Group ID is implied by the match criteria.
284 */
285 struct mlx5_flow_handle *
286 mlx5_add_flow_rules(struct mlx5_flow_table *ft,
287 const struct mlx5_flow_spec *spec,
288 struct mlx5_flow_act *flow_act,
289 struct mlx5_flow_destination *dest,
290 int num_dest);
291 void mlx5_del_flow_rules(struct mlx5_flow_handle *fr);
292
293 int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler,
294 struct mlx5_flow_destination *new_dest,
295 struct mlx5_flow_destination *old_dest);
296
297 struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging);
298
299 /* As mlx5_fc_create() but doesn't queue stats refresh thread. */
300 struct mlx5_fc *mlx5_fc_create_ex(struct mlx5_core_dev *dev, bool aging);
301
302 void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
303 u64 mlx5_fc_query_lastuse(struct mlx5_fc *counter);
304 void mlx5_fc_query_cached(struct mlx5_fc *counter,
305 u64 *bytes, u64 *packets, u64 *lastuse);
306 void mlx5_fc_query_cached_raw(struct mlx5_fc *counter,
307 u64 *bytes, u64 *packets, u64 *lastuse);
308 int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter,
309 u64 *packets, u64 *bytes);
310 u32 mlx5_fc_id(struct mlx5_fc *counter);
311
312 int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
313 int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
314
315 struct mlx5_modify_hdr *mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
316 u8 ns_type, u8 num_actions,
317 void *modify_actions);
318 void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev,
319 struct mlx5_modify_hdr *modify_hdr);
320 struct mlx5_flow_definer *
321 mlx5_create_match_definer(struct mlx5_core_dev *dev,
322 enum mlx5_flow_namespace_type ns_type, u16 format_id,
323 u32 *match_mask);
324 void mlx5_destroy_match_definer(struct mlx5_core_dev *dev,
325 struct mlx5_flow_definer *definer);
326 int mlx5_get_match_definer_id(struct mlx5_flow_definer *definer);
327
328 struct mlx5_pkt_reformat_params {
329 int type;
330 u8 param_0;
331 u8 param_1;
332 size_t size;
333 void *data;
334 };
335
336 struct mlx5_pkt_reformat *mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev,
337 struct mlx5_pkt_reformat_params *params,
338 enum mlx5_flow_namespace_type ns_type);
339 void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev,
340 struct mlx5_pkt_reformat *reformat);
341
342 u32 mlx5_flow_table_id(struct mlx5_flow_table *ft);
343 #endif
344
