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 };
54
55 enum {
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
62 enum {
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
build_leftovers_ft_param(int * priority,int * n_ent,int * n_grp)71 static 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
80 enum 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
104 enum {
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
114 struct mlx5_pkt_reformat;
115 struct mlx5_modify_hdr;
116 struct mlx5_flow_definer;
117 struct mlx5_flow_table;
118 struct mlx5_flow_group;
119 struct mlx5_flow_namespace;
120 struct mlx5_flow_handle;
121
122 enum {
123 FLOW_CONTEXT_HAS_TAG = BIT(0),
124 };
125
126 struct mlx5_flow_context {
127 u32 flags;
128 u32 flow_tag;
129 u32 flow_source;
130 };
131
132 struct 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
139 enum {
140 MLX5_FLOW_DEST_VPORT_VHCA_ID = BIT(0),
141 MLX5_FLOW_DEST_VPORT_REFORMAT_ID = BIT(1),
142 };
143
144 struct 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
161 struct mod_hdr_tbl {
162 struct mutex lock; /* protects hlist */
163 DECLARE_HASHTABLE(hlist, 8);
164 };
165
166 struct mlx5_flow_namespace *
167 mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n);
168 struct mlx5_flow_namespace *
169 mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
170 enum mlx5_flow_namespace_type type);
171 struct mlx5_flow_namespace *
172 mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev,
173 enum mlx5_flow_namespace_type type,
174 int vport);
175
176 struct mlx5_flow_table_attr {
177 int prio;
178 int max_fte;
179 u32 level;
180 u32 flags;
181 struct mlx5_flow_table *next_ft;
182
183 struct {
184 int max_num_groups;
185 int num_reserved_entries;
186 } autogroup;
187 };
188
189 struct mlx5_flow_table *
190 mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
191 struct mlx5_flow_table_attr *ft_attr);
192
193 struct mlx5_flow_table *
194 mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
195 struct mlx5_flow_table_attr *ft_attr);
196
197 struct mlx5_flow_table *
198 mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
199 struct mlx5_flow_table_attr *ft_attr, u16 vport);
200 struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
201 struct mlx5_flow_namespace *ns,
202 int prio, u32 level);
203 int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
204
205 /* inbox should be set with the following values:
206 * start_flow_index
207 * end_flow_index
208 * match_criteria_enable
209 * match_criteria
210 */
211 struct mlx5_flow_group *
212 mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
213 void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
214
215 struct mlx5_fs_vlan {
216 u16 ethtype;
217 u16 vid;
218 u8 prio;
219 };
220
221 #define MLX5_FS_VLAN_DEPTH 2
222
223 enum {
224 FLOW_ACT_NO_APPEND = BIT(0),
225 FLOW_ACT_IGNORE_FLOW_LEVEL = BIT(1),
226 };
227
228 struct mlx5_flow_act {
229 u32 action;
230 struct mlx5_modify_hdr *modify_hdr;
231 struct mlx5_pkt_reformat *pkt_reformat;
232 union {
233 u32 ipsec_obj_id;
234 uintptr_t esp_id;
235 };
236 u32 flags;
237 struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH];
238 struct ib_counters *counters;
239 struct mlx5_flow_group *fg;
240 };
241
242 #define MLX5_DECLARE_FLOW_ACT(name) \
243 struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\
244 .flags = 0, }
245
246 /* Single destination per rule.
247 * Group ID is implied by the match criteria.
248 */
249 struct mlx5_flow_handle *
250 mlx5_add_flow_rules(struct mlx5_flow_table *ft,
251 const struct mlx5_flow_spec *spec,
252 struct mlx5_flow_act *flow_act,
253 struct mlx5_flow_destination *dest,
254 int num_dest);
255 void mlx5_del_flow_rules(struct mlx5_flow_handle *fr);
256
257 int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler,
258 struct mlx5_flow_destination *new_dest,
259 struct mlx5_flow_destination *old_dest);
260
261 struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging);
262
263 /* As mlx5_fc_create() but doesn't queue stats refresh thread. */
264 struct mlx5_fc *mlx5_fc_create_ex(struct mlx5_core_dev *dev, bool aging);
265
266 void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
267 u64 mlx5_fc_query_lastuse(struct mlx5_fc *counter);
268 void mlx5_fc_query_cached(struct mlx5_fc *counter,
269 u64 *bytes, u64 *packets, u64 *lastuse);
270 int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter,
271 u64 *packets, u64 *bytes);
272 u32 mlx5_fc_id(struct mlx5_fc *counter);
273
274 int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
275 int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
276
277 struct mlx5_modify_hdr *mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
278 u8 ns_type, u8 num_actions,
279 void *modify_actions);
280 void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev,
281 struct mlx5_modify_hdr *modify_hdr);
282 struct mlx5_flow_definer *
283 mlx5_create_match_definer(struct mlx5_core_dev *dev,
284 enum mlx5_flow_namespace_type ns_type, u16 format_id,
285 u32 *match_mask);
286 void mlx5_destroy_match_definer(struct mlx5_core_dev *dev,
287 struct mlx5_flow_definer *definer);
288 int mlx5_get_match_definer_id(struct mlx5_flow_definer *definer);
289
290 struct mlx5_pkt_reformat_params {
291 int type;
292 u8 param_0;
293 u8 param_1;
294 size_t size;
295 void *data;
296 };
297
298 struct mlx5_pkt_reformat *mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev,
299 struct mlx5_pkt_reformat_params *params,
300 enum mlx5_flow_namespace_type ns_type);
301 void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev,
302 struct mlx5_pkt_reformat *reformat);
303
304 #endif
305