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 {
44 MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO = 1 << 16,
45 MLX5_FLOW_CONTEXT_ACTION_ENCRYPT = 1 << 17,
46 MLX5_FLOW_CONTEXT_ACTION_DECRYPT = 1 << 18,
47 MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS = 1 << 19,
48 };
49
50 enum {
51 MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT = BIT(0),
52 MLX5_FLOW_TABLE_TUNNEL_EN_DECAP = BIT(1),
53 MLX5_FLOW_TABLE_TERMINATION = BIT(2),
54 MLX5_FLOW_TABLE_UNMANAGED = BIT(3),
55 MLX5_FLOW_TABLE_OTHER_VPORT = BIT(4),
56 };
57
58 #define LEFTOVERS_RULE_NUM 2
build_leftovers_ft_param(int * priority,int * n_ent,int * n_grp)59 static inline void build_leftovers_ft_param(int *priority,
60 int *n_ent,
61 int *n_grp)
62 {
63 *priority = 0; /* Priority of leftovers_prio-0 */
64 *n_ent = LEFTOVERS_RULE_NUM;
65 *n_grp = LEFTOVERS_RULE_NUM;
66 }
67
68 enum mlx5_flow_namespace_type {
69 MLX5_FLOW_NAMESPACE_BYPASS,
70 MLX5_FLOW_NAMESPACE_LAG,
71 MLX5_FLOW_NAMESPACE_OFFLOADS,
72 MLX5_FLOW_NAMESPACE_ETHTOOL,
73 MLX5_FLOW_NAMESPACE_KERNEL,
74 MLX5_FLOW_NAMESPACE_LEFTOVERS,
75 MLX5_FLOW_NAMESPACE_ANCHOR,
76 MLX5_FLOW_NAMESPACE_FDB,
77 MLX5_FLOW_NAMESPACE_ESW_EGRESS,
78 MLX5_FLOW_NAMESPACE_ESW_INGRESS,
79 MLX5_FLOW_NAMESPACE_SNIFFER_RX,
80 MLX5_FLOW_NAMESPACE_SNIFFER_TX,
81 MLX5_FLOW_NAMESPACE_EGRESS,
82 MLX5_FLOW_NAMESPACE_EGRESS_KERNEL,
83 MLX5_FLOW_NAMESPACE_RDMA_RX,
84 MLX5_FLOW_NAMESPACE_RDMA_RX_KERNEL,
85 MLX5_FLOW_NAMESPACE_RDMA_TX,
86 MLX5_FLOW_NAMESPACE_PORT_SEL,
87 MLX5_FLOW_NAMESPACE_RDMA_RX_COUNTERS,
88 MLX5_FLOW_NAMESPACE_RDMA_TX_COUNTERS,
89 };
90
91 enum {
92 FDB_BYPASS_PATH,
93 FDB_TC_OFFLOAD,
94 FDB_FT_OFFLOAD,
95 FDB_TC_MISS,
96 FDB_BR_OFFLOAD,
97 FDB_SLOW_PATH,
98 FDB_PER_VPORT,
99 };
100
101 struct mlx5_pkt_reformat;
102 struct mlx5_modify_hdr;
103 struct mlx5_flow_definer;
104 struct mlx5_flow_table;
105 struct mlx5_flow_group;
106 struct mlx5_flow_namespace;
107 struct mlx5_flow_handle;
108
109 enum {
110 FLOW_CONTEXT_HAS_TAG = BIT(0),
111 };
112
113 struct mlx5_flow_context {
114 u32 flags;
115 u32 flow_tag;
116 u32 flow_source;
117 };
118
119 struct mlx5_flow_spec {
120 u8 match_criteria_enable;
121 u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)];
122 u32 match_value[MLX5_ST_SZ_DW(fte_match_param)];
123 struct mlx5_flow_context flow_context;
124 };
125
126 enum {
127 MLX5_FLOW_DEST_VPORT_VHCA_ID = BIT(0),
128 MLX5_FLOW_DEST_VPORT_REFORMAT_ID = BIT(1),
129 };
130
131 struct mlx5_flow_destination {
132 enum mlx5_flow_destination_type type;
133 union {
134 u32 tir_num;
135 u32 ft_num;
136 struct mlx5_flow_table *ft;
137 u32 counter_id;
138 struct {
139 u16 num;
140 u16 vhca_id;
141 struct mlx5_pkt_reformat *pkt_reformat;
142 u8 flags;
143 } vport;
144 u32 sampler_id;
145 };
146 };
147
148 struct mod_hdr_tbl {
149 struct mutex lock; /* protects hlist */
150 DECLARE_HASHTABLE(hlist, 8);
151 };
152
153 struct mlx5_flow_namespace *
154 mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n);
155 struct mlx5_flow_namespace *
156 mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
157 enum mlx5_flow_namespace_type type);
158 struct mlx5_flow_namespace *
159 mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev,
160 enum mlx5_flow_namespace_type type,
161 int vport);
162
163 struct mlx5_flow_table_attr {
164 int prio;
165 int max_fte;
166 u32 level;
167 u32 flags;
168 struct mlx5_flow_table *next_ft;
169
170 struct {
171 int max_num_groups;
172 int num_reserved_entries;
173 } autogroup;
174 };
175
176 struct mlx5_flow_table *
177 mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
178 struct mlx5_flow_table_attr *ft_attr);
179
180 struct mlx5_flow_table *
181 mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
182 struct mlx5_flow_table_attr *ft_attr);
183
184 struct mlx5_flow_table *
185 mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
186 struct mlx5_flow_table_attr *ft_attr, u16 vport);
187 struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
188 struct mlx5_flow_namespace *ns,
189 int prio, u32 level);
190 int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
191
192 /* inbox should be set with the following values:
193 * start_flow_index
194 * end_flow_index
195 * match_criteria_enable
196 * match_criteria
197 */
198 struct mlx5_flow_group *
199 mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
200 void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
201
202 struct mlx5_fs_vlan {
203 u16 ethtype;
204 u16 vid;
205 u8 prio;
206 };
207
208 #define MLX5_FS_VLAN_DEPTH 2
209
210 enum {
211 FLOW_ACT_NO_APPEND = BIT(0),
212 FLOW_ACT_IGNORE_FLOW_LEVEL = BIT(1),
213 };
214
215 struct mlx5_flow_act {
216 u32 action;
217 struct mlx5_modify_hdr *modify_hdr;
218 struct mlx5_pkt_reformat *pkt_reformat;
219 union {
220 u32 ipsec_obj_id;
221 uintptr_t esp_id;
222 };
223 u32 flags;
224 struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH];
225 struct ib_counters *counters;
226 };
227
228 #define MLX5_DECLARE_FLOW_ACT(name) \
229 struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\
230 .flags = 0, }
231
232 /* Single destination per rule.
233 * Group ID is implied by the match criteria.
234 */
235 struct mlx5_flow_handle *
236 mlx5_add_flow_rules(struct mlx5_flow_table *ft,
237 const struct mlx5_flow_spec *spec,
238 struct mlx5_flow_act *flow_act,
239 struct mlx5_flow_destination *dest,
240 int num_dest);
241 void mlx5_del_flow_rules(struct mlx5_flow_handle *fr);
242
243 int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler,
244 struct mlx5_flow_destination *new_dest,
245 struct mlx5_flow_destination *old_dest);
246
247 struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging);
248
249 /* As mlx5_fc_create() but doesn't queue stats refresh thread. */
250 struct mlx5_fc *mlx5_fc_create_ex(struct mlx5_core_dev *dev, bool aging);
251
252 void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
253 u64 mlx5_fc_query_lastuse(struct mlx5_fc *counter);
254 void mlx5_fc_query_cached(struct mlx5_fc *counter,
255 u64 *bytes, u64 *packets, u64 *lastuse);
256 int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter,
257 u64 *packets, u64 *bytes);
258 u32 mlx5_fc_id(struct mlx5_fc *counter);
259
260 int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
261 int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
262
263 struct mlx5_modify_hdr *mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
264 u8 ns_type, u8 num_actions,
265 void *modify_actions);
266 void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev,
267 struct mlx5_modify_hdr *modify_hdr);
268 struct mlx5_flow_definer *
269 mlx5_create_match_definer(struct mlx5_core_dev *dev,
270 enum mlx5_flow_namespace_type ns_type, u16 format_id,
271 u32 *match_mask);
272 void mlx5_destroy_match_definer(struct mlx5_core_dev *dev,
273 struct mlx5_flow_definer *definer);
274 int mlx5_get_match_definer_id(struct mlx5_flow_definer *definer);
275
276 struct mlx5_pkt_reformat_params {
277 int type;
278 u8 param_0;
279 u8 param_1;
280 size_t size;
281 void *data;
282 };
283
284 struct mlx5_pkt_reformat *mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev,
285 struct mlx5_pkt_reformat_params *params,
286 enum mlx5_flow_namespace_type ns_type);
287 void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev,
288 struct mlx5_pkt_reformat *reformat);
289
290 #endif
291