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