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 #define MLX5_RDMA_TRANSPORT_BYPASS_PRIO 0
44 #define MLX5_FS_MAX_POOL_SIZE BIT(30)
45
46 enum mlx5_flow_destination_type {
47 MLX5_FLOW_DESTINATION_TYPE_NONE,
48 MLX5_FLOW_DESTINATION_TYPE_VPORT,
49 MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE,
50 MLX5_FLOW_DESTINATION_TYPE_TIR,
51 MLX5_FLOW_DESTINATION_TYPE_FLOW_SAMPLER,
52 MLX5_FLOW_DESTINATION_TYPE_UPLINK,
53 MLX5_FLOW_DESTINATION_TYPE_PORT,
54 MLX5_FLOW_DESTINATION_TYPE_COUNTER,
55 MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE_NUM,
56 MLX5_FLOW_DESTINATION_TYPE_RANGE,
57 MLX5_FLOW_DESTINATION_TYPE_TABLE_TYPE,
58 };
59
60 enum {
61 MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO = 1 << 16,
62 MLX5_FLOW_CONTEXT_ACTION_ENCRYPT = 1 << 17,
63 MLX5_FLOW_CONTEXT_ACTION_DECRYPT = 1 << 18,
64 MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS = 1 << 19,
65 };
66
67 enum {
68 MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT = BIT(0),
69 MLX5_FLOW_TABLE_TUNNEL_EN_DECAP = BIT(1),
70 MLX5_FLOW_TABLE_TERMINATION = BIT(2),
71 MLX5_FLOW_TABLE_UNMANAGED = BIT(3),
72 MLX5_FLOW_TABLE_OTHER_VPORT = BIT(4),
73 MLX5_FLOW_TABLE_UPLINK_VPORT = BIT(5),
74 };
75
76 #define LEFTOVERS_RULE_NUM 2
build_leftovers_ft_param(int * priority,int * n_ent,int * n_grp)77 static inline void build_leftovers_ft_param(int *priority,
78 int *n_ent,
79 int *n_grp)
80 {
81 *priority = 0; /* Priority of leftovers_prio-0 */
82 *n_ent = LEFTOVERS_RULE_NUM;
83 *n_grp = LEFTOVERS_RULE_NUM;
84 }
85
86 enum mlx5_flow_namespace_type {
87 MLX5_FLOW_NAMESPACE_BYPASS,
88 MLX5_FLOW_NAMESPACE_KERNEL_RX_MACSEC,
89 MLX5_FLOW_NAMESPACE_LAG,
90 MLX5_FLOW_NAMESPACE_OFFLOADS,
91 MLX5_FLOW_NAMESPACE_ETHTOOL,
92 MLX5_FLOW_NAMESPACE_KERNEL,
93 MLX5_FLOW_NAMESPACE_LEFTOVERS,
94 MLX5_FLOW_NAMESPACE_ANCHOR,
95 MLX5_FLOW_NAMESPACE_FDB_BYPASS,
96 MLX5_FLOW_NAMESPACE_FDB,
97 MLX5_FLOW_NAMESPACE_ESW_EGRESS,
98 MLX5_FLOW_NAMESPACE_ESW_INGRESS,
99 MLX5_FLOW_NAMESPACE_SNIFFER_RX,
100 MLX5_FLOW_NAMESPACE_SNIFFER_TX,
101 MLX5_FLOW_NAMESPACE_EGRESS,
102 MLX5_FLOW_NAMESPACE_EGRESS_IPSEC,
103 MLX5_FLOW_NAMESPACE_EGRESS_MACSEC,
104 MLX5_FLOW_NAMESPACE_RDMA_RX,
105 MLX5_FLOW_NAMESPACE_RDMA_RX_KERNEL,
106 MLX5_FLOW_NAMESPACE_RDMA_TX,
107 MLX5_FLOW_NAMESPACE_PORT_SEL,
108 MLX5_FLOW_NAMESPACE_RDMA_RX_COUNTERS,
109 MLX5_FLOW_NAMESPACE_RDMA_TX_COUNTERS,
110 MLX5_FLOW_NAMESPACE_RDMA_RX_IPSEC,
111 MLX5_FLOW_NAMESPACE_RDMA_TX_IPSEC,
112 MLX5_FLOW_NAMESPACE_RDMA_RX_MACSEC,
113 MLX5_FLOW_NAMESPACE_RDMA_TX_MACSEC,
114 MLX5_FLOW_NAMESPACE_RDMA_TRANSPORT_RX,
115 MLX5_FLOW_NAMESPACE_RDMA_TRANSPORT_TX,
116 };
117
118 enum {
119 FDB_BYPASS_PATH,
120 FDB_CRYPTO_INGRESS,
121 FDB_TC_OFFLOAD,
122 FDB_FT_OFFLOAD,
123 FDB_TC_MISS,
124 FDB_BR_OFFLOAD,
125 FDB_SLOW_PATH,
126 FDB_CRYPTO_EGRESS,
127 FDB_PER_VPORT,
128 };
129
130 struct mlx5_pkt_reformat;
131 struct mlx5_modify_hdr;
132 struct mlx5_flow_definer;
133 struct mlx5_flow_table;
134 struct mlx5_flow_group;
135 struct mlx5_flow_namespace;
136 struct mlx5_flow_handle;
137
138 enum {
139 FLOW_CONTEXT_HAS_TAG = BIT(0),
140 FLOW_CONTEXT_UPLINK_HAIRPIN_EN = BIT(1),
141 };
142
143 struct mlx5_flow_context {
144 u32 flags;
145 u32 flow_tag;
146 u32 flow_source;
147 };
148
149 struct mlx5_flow_spec {
150 u8 match_criteria_enable;
151 u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)];
152 u32 match_value[MLX5_ST_SZ_DW(fte_match_param)];
153 struct mlx5_flow_context flow_context;
154 };
155
156 enum {
157 MLX5_FLOW_DEST_VPORT_VHCA_ID = BIT(0),
158 MLX5_FLOW_DEST_VPORT_REFORMAT_ID = BIT(1),
159 };
160
161 enum mlx5_flow_dest_range_field {
162 MLX5_FLOW_DEST_RANGE_FIELD_PKT_LEN = 0,
163 };
164
165 struct mlx5_flow_destination {
166 enum mlx5_flow_destination_type type;
167 union {
168 u32 tir_num;
169 u32 ft_num;
170 struct mlx5_flow_table *ft;
171 struct mlx5_fc *counter;
172 struct {
173 u16 num;
174 u16 vhca_id;
175 struct mlx5_pkt_reformat *pkt_reformat;
176 u8 flags;
177 } vport;
178 struct {
179 struct mlx5_flow_table *hit_ft;
180 struct mlx5_flow_table *miss_ft;
181 enum mlx5_flow_dest_range_field field;
182 u32 min;
183 u32 max;
184 } range;
185 u32 sampler_id;
186 };
187 };
188
189 struct mod_hdr_tbl {
190 struct mutex lock; /* protects hlist */
191 DECLARE_HASHTABLE(hlist, 8);
192 };
193
194 struct mlx5_flow_namespace *
195 mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n);
196 struct mlx5_flow_namespace *
197 mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
198 enum mlx5_flow_namespace_type type);
199 struct mlx5_flow_namespace *
200 mlx5_get_flow_vport_namespace(struct mlx5_core_dev *dev,
201 enum mlx5_flow_namespace_type type,
202 int vport_idx);
203
204 struct mlx5_flow_table_attr {
205 int prio;
206 int max_fte;
207 u32 level;
208 u32 flags;
209 u16 uid;
210 u16 vport;
211 struct mlx5_flow_table *next_ft;
212
213 struct {
214 int max_num_groups;
215 int num_reserved_entries;
216 } autogroup;
217 };
218
219 struct mlx5_flow_table *
220 mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
221 struct mlx5_flow_table_attr *ft_attr);
222
223 struct mlx5_flow_table *
224 mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
225 struct mlx5_flow_table_attr *ft_attr);
226
227 struct mlx5_flow_table *
228 mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
229 struct mlx5_flow_table_attr *ft_attr, u16 vport);
230 struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
231 struct mlx5_flow_namespace *ns,
232 int prio, u32 level);
233 int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
234
235 /* inbox should be set with the following values:
236 * start_flow_index
237 * end_flow_index
238 * match_criteria_enable
239 * match_criteria
240 */
241 struct mlx5_flow_group *
242 mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
243 void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
244
245 struct mlx5_exe_aso {
246 u32 object_id;
247 int base_id;
248 u8 type;
249 u8 return_reg_id;
250 union {
251 u32 ctrl_data;
252 struct {
253 u8 meter_idx;
254 u8 init_color;
255 } flow_meter;
256 };
257 };
258
259 struct mlx5_fs_vlan {
260 u16 ethtype;
261 u16 vid;
262 u8 prio;
263 };
264
265 #define MLX5_FS_VLAN_DEPTH 2
266
267 enum {
268 FLOW_ACT_NO_APPEND = BIT(0),
269 FLOW_ACT_IGNORE_FLOW_LEVEL = BIT(1),
270 };
271
272 struct mlx5_flow_act {
273 u32 action;
274 struct mlx5_modify_hdr *modify_hdr;
275 struct mlx5_pkt_reformat *pkt_reformat;
276 struct mlx5_flow_act_crypto_params {
277 u8 type;
278 u32 obj_id;
279 } crypto;
280 u32 flags;
281 struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH];
282 struct ib_counters *counters;
283 struct mlx5_flow_group *fg;
284 struct mlx5_exe_aso exe_aso;
285 };
286
287 #define MLX5_DECLARE_FLOW_ACT(name) \
288 struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\
289 .flags = 0, }
290
291 /* Single destination per rule.
292 * Group ID is implied by the match criteria.
293 */
294 struct mlx5_flow_handle *
295 mlx5_add_flow_rules(struct mlx5_flow_table *ft,
296 const struct mlx5_flow_spec *spec,
297 struct mlx5_flow_act *flow_act,
298 struct mlx5_flow_destination *dest,
299 int num_dest);
300 void mlx5_del_flow_rules(struct mlx5_flow_handle *fr);
301
302 int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler,
303 struct mlx5_flow_destination *new_dest,
304 struct mlx5_flow_destination *old_dest);
305
306 struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging);
307
308 void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
309 struct mlx5_fc *mlx5_fc_local_create(u32 counter_id, u32 offset, u32 bulk_size);
310 void mlx5_fc_local_destroy(struct mlx5_fc *counter);
311 u64 mlx5_fc_query_lastuse(struct mlx5_fc *counter);
312 void mlx5_fc_query_cached(struct mlx5_fc *counter,
313 u64 *bytes, u64 *packets, u64 *lastuse);
314 void mlx5_fc_query_cached_raw(struct mlx5_fc *counter,
315 u64 *bytes, u64 *packets, u64 *lastuse);
316 int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter,
317 u64 *packets, u64 *bytes);
318 u32 mlx5_fc_id(struct mlx5_fc *counter);
319
320 int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
321 int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
322
323 struct mlx5_modify_hdr *mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
324 u8 ns_type, u8 num_actions,
325 void *modify_actions);
326 void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev,
327 struct mlx5_modify_hdr *modify_hdr);
328 struct mlx5_flow_definer *
329 mlx5_create_match_definer(struct mlx5_core_dev *dev,
330 enum mlx5_flow_namespace_type ns_type, u16 format_id,
331 u32 *match_mask);
332 void mlx5_destroy_match_definer(struct mlx5_core_dev *dev,
333 struct mlx5_flow_definer *definer);
334 int mlx5_get_match_definer_id(struct mlx5_flow_definer *definer);
335
336 struct mlx5_pkt_reformat_params {
337 int type;
338 u8 param_0;
339 u8 param_1;
340 size_t size;
341 void *data;
342 };
343
344 struct mlx5_pkt_reformat *mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev,
345 struct mlx5_pkt_reformat_params *params,
346 enum mlx5_flow_namespace_type ns_type);
347 void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev,
348 struct mlx5_pkt_reformat *reformat);
349
350 u32 mlx5_flow_table_id(struct mlx5_flow_table *ft);
351
352 struct mlx5_flow_root_namespace *
353 mlx5_get_root_namespace(struct mlx5_core_dev *dev, enum mlx5_flow_namespace_type ns_type);
354 #endif
355