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 };
87
88 enum {
89 FDB_BYPASS_PATH,
90 FDB_TC_OFFLOAD,
91 FDB_FT_OFFLOAD,
92 FDB_TC_MISS,
93 FDB_BR_OFFLOAD,
94 FDB_SLOW_PATH,
95 FDB_PER_VPORT,
96 };
97
98 struct mlx5_pkt_reformat;
99 struct mlx5_modify_hdr;
100 struct mlx5_flow_table;
101 struct mlx5_flow_group;
102 struct mlx5_flow_namespace;
103 struct mlx5_flow_handle;
104
105 enum {
106 FLOW_CONTEXT_HAS_TAG = BIT(0),
107 };
108
109 struct mlx5_flow_context {
110 u32 flags;
111 u32 flow_tag;
112 u32 flow_source;
113 };
114
115 struct mlx5_flow_spec {
116 u8 match_criteria_enable;
117 u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)];
118 u32 match_value[MLX5_ST_SZ_DW(fte_match_param)];
119 struct mlx5_flow_context flow_context;
120 };
121
122 enum {
123 MLX5_FLOW_DEST_VPORT_VHCA_ID = BIT(0),
124 MLX5_FLOW_DEST_VPORT_REFORMAT_ID = BIT(1),
125 };
126
127 struct mlx5_flow_destination {
128 enum mlx5_flow_destination_type type;
129 union {
130 u32 tir_num;
131 u32 ft_num;
132 struct mlx5_flow_table *ft;
133 u32 counter_id;
134 struct {
135 u16 num;
136 u16 vhca_id;
137 struct mlx5_pkt_reformat *pkt_reformat;
138 u8 flags;
139 } vport;
140 u32 sampler_id;
141 };
142 };
143
144 struct mod_hdr_tbl {
145 struct mutex lock; /* protects hlist */
146 DECLARE_HASHTABLE(hlist, 8);
147 };
148
149 struct mlx5_flow_namespace *
150 mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n);
151 struct mlx5_flow_namespace *
152 mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
153 enum mlx5_flow_namespace_type type);
154 struct mlx5_flow_namespace *
155 mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev,
156 enum mlx5_flow_namespace_type type,
157 int vport);
158
159 struct mlx5_flow_table_attr {
160 int prio;
161 int max_fte;
162 u32 level;
163 u32 flags;
164 struct mlx5_flow_table *next_ft;
165
166 struct {
167 int max_num_groups;
168 int num_reserved_entries;
169 } autogroup;
170 };
171
172 struct mlx5_flow_table *
173 mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
174 struct mlx5_flow_table_attr *ft_attr);
175
176 struct mlx5_flow_table *
177 mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
178 struct mlx5_flow_table_attr *ft_attr);
179
180 struct mlx5_flow_table *
181 mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
182 struct mlx5_flow_table_attr *ft_attr, u16 vport);
183 struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
184 struct mlx5_flow_namespace *ns,
185 int prio, u32 level);
186 int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
187
188 /* inbox should be set with the following values:
189 * start_flow_index
190 * end_flow_index
191 * match_criteria_enable
192 * match_criteria
193 */
194 struct mlx5_flow_group *
195 mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
196 void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
197
198 struct mlx5_fs_vlan {
199 u16 ethtype;
200 u16 vid;
201 u8 prio;
202 };
203
204 #define MLX5_FS_VLAN_DEPTH 2
205
206 enum {
207 FLOW_ACT_NO_APPEND = BIT(0),
208 FLOW_ACT_IGNORE_FLOW_LEVEL = BIT(1),
209 };
210
211 struct mlx5_flow_act {
212 u32 action;
213 struct mlx5_modify_hdr *modify_hdr;
214 struct mlx5_pkt_reformat *pkt_reformat;
215 union {
216 u32 ipsec_obj_id;
217 uintptr_t esp_id;
218 };
219 u32 flags;
220 struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH];
221 struct ib_counters *counters;
222 };
223
224 #define MLX5_DECLARE_FLOW_ACT(name) \
225 struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\
226 .flags = 0, }
227
228 /* Single destination per rule.
229 * Group ID is implied by the match criteria.
230 */
231 struct mlx5_flow_handle *
232 mlx5_add_flow_rules(struct mlx5_flow_table *ft,
233 const struct mlx5_flow_spec *spec,
234 struct mlx5_flow_act *flow_act,
235 struct mlx5_flow_destination *dest,
236 int num_dest);
237 void mlx5_del_flow_rules(struct mlx5_flow_handle *fr);
238
239 int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler,
240 struct mlx5_flow_destination *new_dest,
241 struct mlx5_flow_destination *old_dest);
242
243 struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging);
244 void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
245 u64 mlx5_fc_query_lastuse(struct mlx5_fc *counter);
246 void mlx5_fc_query_cached(struct mlx5_fc *counter,
247 u64 *bytes, u64 *packets, u64 *lastuse);
248 int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter,
249 u64 *packets, u64 *bytes);
250 u32 mlx5_fc_id(struct mlx5_fc *counter);
251
252 int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
253 int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
254
255 struct mlx5_modify_hdr *mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
256 u8 ns_type, u8 num_actions,
257 void *modify_actions);
258 void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev,
259 struct mlx5_modify_hdr *modify_hdr);
260
261 struct mlx5_pkt_reformat_params {
262 int type;
263 u8 param_0;
264 u8 param_1;
265 size_t size;
266 void *data;
267 };
268
269 struct mlx5_pkt_reformat *mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev,
270 struct mlx5_pkt_reformat_params *params,
271 enum mlx5_flow_namespace_type ns_type);
272 void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev,
273 struct mlx5_pkt_reformat *reformat);
274
275 #endif
276
