Linux kernel mirror (for testing)
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linux
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
41enum {
42 MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO = 1 << 16,
43 MLX5_FLOW_CONTEXT_ACTION_ENCRYPT = 1 << 17,
44 MLX5_FLOW_CONTEXT_ACTION_DECRYPT = 1 << 18,
45 MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS = 1 << 19,
46};
47
48enum {
49 MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT = BIT(0),
50 MLX5_FLOW_TABLE_TUNNEL_EN_DECAP = BIT(1),
51 MLX5_FLOW_TABLE_TERMINATION = BIT(2),
52 MLX5_FLOW_TABLE_UNMANAGED = BIT(3),
53};
54
55#define LEFTOVERS_RULE_NUM 2
56static inline void build_leftovers_ft_param(int *priority,
57 int *n_ent,
58 int *n_grp)
59{
60 *priority = 0; /* Priority of leftovers_prio-0 */
61 *n_ent = LEFTOVERS_RULE_NUM;
62 *n_grp = LEFTOVERS_RULE_NUM;
63}
64
65enum mlx5_flow_namespace_type {
66 MLX5_FLOW_NAMESPACE_BYPASS,
67 MLX5_FLOW_NAMESPACE_LAG,
68 MLX5_FLOW_NAMESPACE_OFFLOADS,
69 MLX5_FLOW_NAMESPACE_ETHTOOL,
70 MLX5_FLOW_NAMESPACE_KERNEL,
71 MLX5_FLOW_NAMESPACE_LEFTOVERS,
72 MLX5_FLOW_NAMESPACE_ANCHOR,
73 MLX5_FLOW_NAMESPACE_FDB,
74 MLX5_FLOW_NAMESPACE_ESW_EGRESS,
75 MLX5_FLOW_NAMESPACE_ESW_INGRESS,
76 MLX5_FLOW_NAMESPACE_SNIFFER_RX,
77 MLX5_FLOW_NAMESPACE_SNIFFER_TX,
78 MLX5_FLOW_NAMESPACE_EGRESS,
79 MLX5_FLOW_NAMESPACE_RDMA_RX,
80 MLX5_FLOW_NAMESPACE_RDMA_RX_KERNEL,
81 MLX5_FLOW_NAMESPACE_RDMA_TX,
82};
83
84enum {
85 FDB_BYPASS_PATH,
86 FDB_TC_OFFLOAD,
87 FDB_FT_OFFLOAD,
88 FDB_SLOW_PATH,
89 FDB_PER_VPORT,
90};
91
92struct mlx5_pkt_reformat;
93struct mlx5_modify_hdr;
94struct mlx5_flow_table;
95struct mlx5_flow_group;
96struct mlx5_flow_namespace;
97struct mlx5_flow_handle;
98
99enum {
100 FLOW_CONTEXT_HAS_TAG = BIT(0),
101};
102
103struct mlx5_flow_context {
104 u32 flags;
105 u32 flow_tag;
106 u32 flow_source;
107};
108
109struct mlx5_flow_spec {
110 u8 match_criteria_enable;
111 u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)];
112 u32 match_value[MLX5_ST_SZ_DW(fte_match_param)];
113 struct mlx5_flow_context flow_context;
114};
115
116enum {
117 MLX5_FLOW_DEST_VPORT_VHCA_ID = BIT(0),
118 MLX5_FLOW_DEST_VPORT_REFORMAT_ID = BIT(1),
119};
120
121struct mlx5_flow_destination {
122 enum mlx5_flow_destination_type type;
123 union {
124 u32 tir_num;
125 u32 ft_num;
126 struct mlx5_flow_table *ft;
127 u32 counter_id;
128 struct {
129 u16 num;
130 u16 vhca_id;
131 struct mlx5_pkt_reformat *pkt_reformat;
132 u8 flags;
133 } vport;
134 };
135};
136
137struct mod_hdr_tbl {
138 struct mutex lock; /* protects hlist */
139 DECLARE_HASHTABLE(hlist, 8);
140};
141
142struct mlx5_flow_namespace *
143mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n);
144struct mlx5_flow_namespace *
145mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
146 enum mlx5_flow_namespace_type type);
147struct mlx5_flow_namespace *
148mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev,
149 enum mlx5_flow_namespace_type type,
150 int vport);
151
152struct mlx5_flow_table_attr {
153 int prio;
154 int max_fte;
155 u32 level;
156 u32 flags;
157 struct mlx5_flow_table *next_ft;
158
159 struct {
160 int max_num_groups;
161 int num_reserved_entries;
162 } autogroup;
163};
164
165struct mlx5_flow_table *
166mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
167 struct mlx5_flow_table_attr *ft_attr);
168
169struct mlx5_flow_table *
170mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
171 struct mlx5_flow_table_attr *ft_attr);
172
173struct mlx5_flow_table *
174mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
175 int prio,
176 int num_flow_table_entries,
177 u32 level, u16 vport);
178struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
179 struct mlx5_flow_namespace *ns,
180 int prio, u32 level);
181int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
182
183/* inbox should be set with the following values:
184 * start_flow_index
185 * end_flow_index
186 * match_criteria_enable
187 * match_criteria
188 */
189struct mlx5_flow_group *
190mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
191void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
192
193struct mlx5_fs_vlan {
194 u16 ethtype;
195 u16 vid;
196 u8 prio;
197};
198
199#define MLX5_FS_VLAN_DEPTH 2
200
201enum {
202 FLOW_ACT_NO_APPEND = BIT(0),
203 FLOW_ACT_IGNORE_FLOW_LEVEL = BIT(1),
204};
205
206struct mlx5_flow_act {
207 u32 action;
208 struct mlx5_modify_hdr *modify_hdr;
209 struct mlx5_pkt_reformat *pkt_reformat;
210 union {
211 u32 ipsec_obj_id;
212 uintptr_t esp_id;
213 };
214 u32 flags;
215 struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH];
216 struct ib_counters *counters;
217};
218
219#define MLX5_DECLARE_FLOW_ACT(name) \
220 struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\
221 .flags = 0, }
222
223/* Single destination per rule.
224 * Group ID is implied by the match criteria.
225 */
226struct mlx5_flow_handle *
227mlx5_add_flow_rules(struct mlx5_flow_table *ft,
228 const struct mlx5_flow_spec *spec,
229 struct mlx5_flow_act *flow_act,
230 struct mlx5_flow_destination *dest,
231 int num_dest);
232void mlx5_del_flow_rules(struct mlx5_flow_handle *fr);
233
234int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler,
235 struct mlx5_flow_destination *new_dest,
236 struct mlx5_flow_destination *old_dest);
237
238struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging);
239void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
240u64 mlx5_fc_query_lastuse(struct mlx5_fc *counter);
241void mlx5_fc_query_cached(struct mlx5_fc *counter,
242 u64 *bytes, u64 *packets, u64 *lastuse);
243int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter,
244 u64 *packets, u64 *bytes);
245u32 mlx5_fc_id(struct mlx5_fc *counter);
246
247int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
248int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
249
250struct mlx5_modify_hdr *mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
251 u8 ns_type, u8 num_actions,
252 void *modify_actions);
253void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev,
254 struct mlx5_modify_hdr *modify_hdr);
255
256struct mlx5_pkt_reformat *mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev,
257 int reformat_type,
258 size_t size,
259 void *reformat_data,
260 enum mlx5_flow_namespace_type ns_type);
261void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev,
262 struct mlx5_pkt_reformat *reformat);
263
264#endif