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 MLX5_FLOW_TABLE_OTHER_VPORT = BIT(4),
54};
55
56#define LEFTOVERS_RULE_NUM 2
57static inline void build_leftovers_ft_param(int *priority,
58 int *n_ent,
59 int *n_grp)
60{
61 *priority = 0; /* Priority of leftovers_prio-0 */
62 *n_ent = LEFTOVERS_RULE_NUM;
63 *n_grp = LEFTOVERS_RULE_NUM;
64}
65
66enum mlx5_flow_namespace_type {
67 MLX5_FLOW_NAMESPACE_BYPASS,
68 MLX5_FLOW_NAMESPACE_LAG,
69 MLX5_FLOW_NAMESPACE_OFFLOADS,
70 MLX5_FLOW_NAMESPACE_ETHTOOL,
71 MLX5_FLOW_NAMESPACE_KERNEL,
72 MLX5_FLOW_NAMESPACE_LEFTOVERS,
73 MLX5_FLOW_NAMESPACE_ANCHOR,
74 MLX5_FLOW_NAMESPACE_FDB,
75 MLX5_FLOW_NAMESPACE_ESW_EGRESS,
76 MLX5_FLOW_NAMESPACE_ESW_INGRESS,
77 MLX5_FLOW_NAMESPACE_SNIFFER_RX,
78 MLX5_FLOW_NAMESPACE_SNIFFER_TX,
79 MLX5_FLOW_NAMESPACE_EGRESS,
80 MLX5_FLOW_NAMESPACE_EGRESS_KERNEL,
81 MLX5_FLOW_NAMESPACE_RDMA_RX,
82 MLX5_FLOW_NAMESPACE_RDMA_RX_KERNEL,
83 MLX5_FLOW_NAMESPACE_RDMA_TX,
84};
85
86enum {
87 FDB_BYPASS_PATH,
88 FDB_TC_OFFLOAD,
89 FDB_FT_OFFLOAD,
90 FDB_SLOW_PATH,
91 FDB_PER_VPORT,
92};
93
94struct mlx5_pkt_reformat;
95struct mlx5_modify_hdr;
96struct mlx5_flow_table;
97struct mlx5_flow_group;
98struct mlx5_flow_namespace;
99struct mlx5_flow_handle;
100
101enum {
102 FLOW_CONTEXT_HAS_TAG = BIT(0),
103};
104
105struct mlx5_flow_context {
106 u32 flags;
107 u32 flow_tag;
108 u32 flow_source;
109};
110
111struct mlx5_flow_spec {
112 u8 match_criteria_enable;
113 u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)];
114 u32 match_value[MLX5_ST_SZ_DW(fte_match_param)];
115 struct mlx5_flow_context flow_context;
116};
117
118enum {
119 MLX5_FLOW_DEST_VPORT_VHCA_ID = BIT(0),
120 MLX5_FLOW_DEST_VPORT_REFORMAT_ID = BIT(1),
121};
122
123struct mlx5_flow_destination {
124 enum mlx5_flow_destination_type type;
125 union {
126 u32 tir_num;
127 u32 ft_num;
128 struct mlx5_flow_table *ft;
129 u32 counter_id;
130 struct {
131 u16 num;
132 u16 vhca_id;
133 struct mlx5_pkt_reformat *pkt_reformat;
134 u8 flags;
135 } vport;
136 u32 sampler_id;
137 };
138};
139
140struct mod_hdr_tbl {
141 struct mutex lock; /* protects hlist */
142 DECLARE_HASHTABLE(hlist, 8);
143};
144
145struct mlx5_flow_namespace *
146mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n);
147struct mlx5_flow_namespace *
148mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
149 enum mlx5_flow_namespace_type type);
150struct mlx5_flow_namespace *
151mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev,
152 enum mlx5_flow_namespace_type type,
153 int vport);
154
155struct mlx5_flow_table_attr {
156 int prio;
157 int max_fte;
158 u32 level;
159 u32 flags;
160 struct mlx5_flow_table *next_ft;
161
162 struct {
163 int max_num_groups;
164 int num_reserved_entries;
165 } autogroup;
166};
167
168struct mlx5_flow_table *
169mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
170 struct mlx5_flow_table_attr *ft_attr);
171
172struct mlx5_flow_table *
173mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
174 struct mlx5_flow_table_attr *ft_attr);
175
176struct mlx5_flow_table *
177mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
178 struct mlx5_flow_table_attr *ft_attr, u16 vport);
179struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
180 struct mlx5_flow_namespace *ns,
181 int prio, u32 level);
182int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
183
184/* inbox should be set with the following values:
185 * start_flow_index
186 * end_flow_index
187 * match_criteria_enable
188 * match_criteria
189 */
190struct mlx5_flow_group *
191mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
192void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
193
194struct mlx5_fs_vlan {
195 u16 ethtype;
196 u16 vid;
197 u8 prio;
198};
199
200#define MLX5_FS_VLAN_DEPTH 2
201
202enum {
203 FLOW_ACT_NO_APPEND = BIT(0),
204 FLOW_ACT_IGNORE_FLOW_LEVEL = BIT(1),
205};
206
207struct mlx5_flow_act {
208 u32 action;
209 struct mlx5_modify_hdr *modify_hdr;
210 struct mlx5_pkt_reformat *pkt_reformat;
211 union {
212 u32 ipsec_obj_id;
213 uintptr_t esp_id;
214 };
215 u32 flags;
216 struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH];
217 struct ib_counters *counters;
218};
219
220#define MLX5_DECLARE_FLOW_ACT(name) \
221 struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\
222 .flags = 0, }
223
224/* Single destination per rule.
225 * Group ID is implied by the match criteria.
226 */
227struct mlx5_flow_handle *
228mlx5_add_flow_rules(struct mlx5_flow_table *ft,
229 const struct mlx5_flow_spec *spec,
230 struct mlx5_flow_act *flow_act,
231 struct mlx5_flow_destination *dest,
232 int num_dest);
233void mlx5_del_flow_rules(struct mlx5_flow_handle *fr);
234
235int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler,
236 struct mlx5_flow_destination *new_dest,
237 struct mlx5_flow_destination *old_dest);
238
239struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging);
240void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
241u64 mlx5_fc_query_lastuse(struct mlx5_fc *counter);
242void mlx5_fc_query_cached(struct mlx5_fc *counter,
243 u64 *bytes, u64 *packets, u64 *lastuse);
244int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter,
245 u64 *packets, u64 *bytes);
246u32 mlx5_fc_id(struct mlx5_fc *counter);
247
248int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
249int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
250
251struct mlx5_modify_hdr *mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
252 u8 ns_type, u8 num_actions,
253 void *modify_actions);
254void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev,
255 struct mlx5_modify_hdr *modify_hdr);
256
257struct mlx5_pkt_reformat *mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev,
258 int reformat_type,
259 size_t size,
260 void *reformat_data,
261 enum mlx5_flow_namespace_type ns_type);
262void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev,
263 struct mlx5_pkt_reformat *reformat);
264
265#endif