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