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_FS_MAX_POOL_SIZE BIT(30)
44
45 enum mlx5_flow_destination_type {
46 MLX5_FLOW_DESTINATION_TYPE_NONE,
47 MLX5_FLOW_DESTINATION_TYPE_VPORT,
48 MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE,
49 MLX5_FLOW_DESTINATION_TYPE_TIR,
50 MLX5_FLOW_DESTINATION_TYPE_FLOW_SAMPLER,
51 MLX5_FLOW_DESTINATION_TYPE_UPLINK,
52 MLX5_FLOW_DESTINATION_TYPE_PORT,
53 MLX5_FLOW_DESTINATION_TYPE_COUNTER,
54 MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE_NUM,
55 MLX5_FLOW_DESTINATION_TYPE_RANGE,
56 MLX5_FLOW_DESTINATION_TYPE_TABLE_TYPE,
57 };
58
59 enum {
60 MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO = 1 << 16,
61 MLX5_FLOW_CONTEXT_ACTION_ENCRYPT = 1 << 17,
62 MLX5_FLOW_CONTEXT_ACTION_DECRYPT = 1 << 18,
63 MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS = 1 << 19,
64 };
65
66 enum {
67 MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT = BIT(0),
68 MLX5_FLOW_TABLE_TUNNEL_EN_DECAP = BIT(1),
69 MLX5_FLOW_TABLE_TERMINATION = BIT(2),
70 MLX5_FLOW_TABLE_UNMANAGED = BIT(3),
71 MLX5_FLOW_TABLE_OTHER_VPORT = BIT(4),
72 MLX5_FLOW_TABLE_UPLINK_VPORT = BIT(5),
73 };
74
75 #define LEFTOVERS_RULE_NUM 2
build_leftovers_ft_param(int * priority,int * n_ent,int * n_grp)76 static inline void build_leftovers_ft_param(int *priority,
77 int *n_ent,
78 int *n_grp)
79 {
80 *priority = 0; /* Priority of leftovers_prio-0 */
81 *n_ent = LEFTOVERS_RULE_NUM;
82 *n_grp = LEFTOVERS_RULE_NUM;
83 }
84
85 enum mlx5_flow_namespace_type {
86 MLX5_FLOW_NAMESPACE_BYPASS,
87 MLX5_FLOW_NAMESPACE_KERNEL_RX_MACSEC,
88 MLX5_FLOW_NAMESPACE_LAG,
89 MLX5_FLOW_NAMESPACE_OFFLOADS,
90 MLX5_FLOW_NAMESPACE_ETHTOOL,
91 MLX5_FLOW_NAMESPACE_KERNEL,
92 MLX5_FLOW_NAMESPACE_LEFTOVERS,
93 MLX5_FLOW_NAMESPACE_ANCHOR,
94 MLX5_FLOW_NAMESPACE_FDB_BYPASS,
95 MLX5_FLOW_NAMESPACE_FDB,
96 MLX5_FLOW_NAMESPACE_ESW_EGRESS,
97 MLX5_FLOW_NAMESPACE_ESW_INGRESS,
98 MLX5_FLOW_NAMESPACE_SNIFFER_RX,
99 MLX5_FLOW_NAMESPACE_SNIFFER_TX,
100 MLX5_FLOW_NAMESPACE_EGRESS,
101 MLX5_FLOW_NAMESPACE_EGRESS_IPSEC,
102 MLX5_FLOW_NAMESPACE_EGRESS_MACSEC,
103 MLX5_FLOW_NAMESPACE_RDMA_RX,
104 MLX5_FLOW_NAMESPACE_RDMA_RX_KERNEL,
105 MLX5_FLOW_NAMESPACE_RDMA_TX,
106 MLX5_FLOW_NAMESPACE_PORT_SEL,
107 MLX5_FLOW_NAMESPACE_RDMA_RX_COUNTERS,
108 MLX5_FLOW_NAMESPACE_RDMA_TX_COUNTERS,
109 MLX5_FLOW_NAMESPACE_RDMA_RX_IPSEC,
110 MLX5_FLOW_NAMESPACE_RDMA_TX_IPSEC,
111 MLX5_FLOW_NAMESPACE_RDMA_RX_MACSEC,
112 MLX5_FLOW_NAMESPACE_RDMA_TX_MACSEC,
113 };
114
115 enum {
116 FDB_BYPASS_PATH,
117 FDB_CRYPTO_INGRESS,
118 FDB_TC_OFFLOAD,
119 FDB_FT_OFFLOAD,
120 FDB_TC_MISS,
121 FDB_BR_OFFLOAD,
122 FDB_SLOW_PATH,
123 FDB_CRYPTO_EGRESS,
124 FDB_PER_VPORT,
125 };
126
127 struct mlx5_pkt_reformat;
128 struct mlx5_modify_hdr;
129 struct mlx5_flow_definer;
130 struct mlx5_flow_table;
131 struct mlx5_flow_group;
132 struct mlx5_flow_namespace;
133 struct mlx5_flow_handle;
134
135 enum {
136 FLOW_CONTEXT_HAS_TAG = BIT(0),
137 FLOW_CONTEXT_UPLINK_HAIRPIN_EN = BIT(1),
138 };
139
140 struct mlx5_flow_context {
141 u32 flags;
142 u32 flow_tag;
143 u32 flow_source;
144 };
145
146 struct mlx5_flow_spec {
147 u8 match_criteria_enable;
148 u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)];
149 u32 match_value[MLX5_ST_SZ_DW(fte_match_param)];
150 struct mlx5_flow_context flow_context;
151 };
152
153 enum {
154 MLX5_FLOW_DEST_VPORT_VHCA_ID = BIT(0),
155 MLX5_FLOW_DEST_VPORT_REFORMAT_ID = BIT(1),
156 };
157
158 enum mlx5_flow_dest_range_field {
159 MLX5_FLOW_DEST_RANGE_FIELD_PKT_LEN = 0,
160 };
161
162 struct mlx5_flow_destination {
163 enum mlx5_flow_destination_type type;
164 union {
165 u32 tir_num;
166 u32 ft_num;
167 struct mlx5_flow_table *ft;
168 u32 counter_id;
169 struct {
170 u16 num;
171 u16 vhca_id;
172 struct mlx5_pkt_reformat *pkt_reformat;
173 u8 flags;
174 } vport;
175 struct {
176 struct mlx5_flow_table *hit_ft;
177 struct mlx5_flow_table *miss_ft;
178 enum mlx5_flow_dest_range_field field;
179 u32 min;
180 u32 max;
181 } range;
182 u32 sampler_id;
183 };
184 };
185
186 struct mod_hdr_tbl {
187 struct mutex lock; /* protects hlist */
188 DECLARE_HASHTABLE(hlist, 8);
189 };
190
191 struct mlx5_flow_namespace *
192 mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n);
193 struct mlx5_flow_namespace *
194 mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
195 enum mlx5_flow_namespace_type type);
196 struct mlx5_flow_namespace *
197 mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev,
198 enum mlx5_flow_namespace_type type,
199 int vport);
200
201 struct mlx5_flow_table_attr {
202 int prio;
203 int max_fte;
204 u32 level;
205 u32 flags;
206 u16 uid;
207 struct mlx5_flow_table *next_ft;
208
209 struct {
210 int max_num_groups;
211 int num_reserved_entries;
212 } autogroup;
213 };
214
215 struct mlx5_flow_table *
216 mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
217 struct mlx5_flow_table_attr *ft_attr);
218
219 struct mlx5_flow_table *
220 mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
221 struct mlx5_flow_table_attr *ft_attr);
222
223 struct mlx5_flow_table *
224 mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
225 struct mlx5_flow_table_attr *ft_attr, u16 vport);
226 struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
227 struct mlx5_flow_namespace *ns,
228 int prio, u32 level);
229 int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
230
231 /* inbox should be set with the following values:
232 * start_flow_index
233 * end_flow_index
234 * match_criteria_enable
235 * match_criteria
236 */
237 struct mlx5_flow_group *
238 mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
239 void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
240
241 struct mlx5_exe_aso {
242 u32 object_id;
243 u8 type;
244 u8 return_reg_id;
245 union {
246 u32 ctrl_data;
247 struct {
248 u8 meter_idx;
249 u8 init_color;
250 } flow_meter;
251 };
252 };
253
254 struct mlx5_fs_vlan {
255 u16 ethtype;
256 u16 vid;
257 u8 prio;
258 };
259
260 #define MLX5_FS_VLAN_DEPTH 2
261
262 enum {
263 FLOW_ACT_NO_APPEND = BIT(0),
264 FLOW_ACT_IGNORE_FLOW_LEVEL = BIT(1),
265 };
266
267 struct mlx5_flow_act {
268 u32 action;
269 struct mlx5_modify_hdr *modify_hdr;
270 struct mlx5_pkt_reformat *pkt_reformat;
271 struct mlx5_flow_act_crypto_params {
272 u8 type;
273 u32 obj_id;
274 } crypto;
275 u32 flags;
276 struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH];
277 struct ib_counters *counters;
278 struct mlx5_flow_group *fg;
279 struct mlx5_exe_aso exe_aso;
280 };
281
282 #define MLX5_DECLARE_FLOW_ACT(name) \
283 struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\
284 .flags = 0, }
285
286 /* Single destination per rule.
287 * Group ID is implied by the match criteria.
288 */
289 struct mlx5_flow_handle *
290 mlx5_add_flow_rules(struct mlx5_flow_table *ft,
291 const struct mlx5_flow_spec *spec,
292 struct mlx5_flow_act *flow_act,
293 struct mlx5_flow_destination *dest,
294 int num_dest);
295 void mlx5_del_flow_rules(struct mlx5_flow_handle *fr);
296
297 int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler,
298 struct mlx5_flow_destination *new_dest,
299 struct mlx5_flow_destination *old_dest);
300
301 struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging);
302
303 /* As mlx5_fc_create() but doesn't queue stats refresh thread. */
304 struct mlx5_fc *mlx5_fc_create_ex(struct mlx5_core_dev *dev, bool aging);
305
306 void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
307 u64 mlx5_fc_query_lastuse(struct mlx5_fc *counter);
308 void mlx5_fc_query_cached(struct mlx5_fc *counter,
309 u64 *bytes, u64 *packets, u64 *lastuse);
310 void mlx5_fc_query_cached_raw(struct mlx5_fc *counter,
311 u64 *bytes, u64 *packets, u64 *lastuse);
312 int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter,
313 u64 *packets, u64 *bytes);
314 u32 mlx5_fc_id(struct mlx5_fc *counter);
315
316 int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
317 int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
318
319 struct mlx5_modify_hdr *mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
320 u8 ns_type, u8 num_actions,
321 void *modify_actions);
322 void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev,
323 struct mlx5_modify_hdr *modify_hdr);
324 struct mlx5_flow_definer *
325 mlx5_create_match_definer(struct mlx5_core_dev *dev,
326 enum mlx5_flow_namespace_type ns_type, u16 format_id,
327 u32 *match_mask);
328 void mlx5_destroy_match_definer(struct mlx5_core_dev *dev,
329 struct mlx5_flow_definer *definer);
330 int mlx5_get_match_definer_id(struct mlx5_flow_definer *definer);
331
332 struct mlx5_pkt_reformat_params {
333 int type;
334 u8 param_0;
335 u8 param_1;
336 size_t size;
337 void *data;
338 };
339
340 struct mlx5_pkt_reformat *mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev,
341 struct mlx5_pkt_reformat_params *params,
342 enum mlx5_flow_namespace_type ns_type);
343 void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev,
344 struct mlx5_pkt_reformat *reformat);
345
346 u32 mlx5_flow_table_id(struct mlx5_flow_table *ft);
347 #endif
348