tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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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
41#define MLX5_SET_CFG(p, f, v) MLX5_SET(create_flow_group_in, p, f, v)
42
43enum {
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
50enum {
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
59static 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
68enum 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
91enum {
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
101struct mlx5_pkt_reformat;
102struct mlx5_modify_hdr;
103struct mlx5_flow_definer;
104struct mlx5_flow_table;
105struct mlx5_flow_group;
106struct mlx5_flow_namespace;
107struct mlx5_flow_handle;
108
109enum {
110 FLOW_CONTEXT_HAS_TAG = BIT(0),
111};
112
113struct mlx5_flow_context {
114 u32 flags;
115 u32 flow_tag;
116 u32 flow_source;
117};
118
119struct 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
126enum {
127 MLX5_FLOW_DEST_VPORT_VHCA_ID = BIT(0),
128 MLX5_FLOW_DEST_VPORT_REFORMAT_ID = BIT(1),
129};
130
131struct 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
148struct mod_hdr_tbl {
149 struct mutex lock; /* protects hlist */
150 DECLARE_HASHTABLE(hlist, 8);
151};
152
153struct mlx5_flow_namespace *
154mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n);
155struct mlx5_flow_namespace *
156mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
157 enum mlx5_flow_namespace_type type);
158struct mlx5_flow_namespace *
159mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev,
160 enum mlx5_flow_namespace_type type,
161 int vport);
162
163struct 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
176struct mlx5_flow_table *
177mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
178 struct mlx5_flow_table_attr *ft_attr);
179
180struct mlx5_flow_table *
181mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
182 struct mlx5_flow_table_attr *ft_attr);
183
184struct mlx5_flow_table *
185mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
186 struct mlx5_flow_table_attr *ft_attr, u16 vport);
187struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
188 struct mlx5_flow_namespace *ns,
189 int prio, u32 level);
190int 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 */
198struct mlx5_flow_group *
199mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
200void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
201
202struct mlx5_fs_vlan {
203 u16 ethtype;
204 u16 vid;
205 u8 prio;
206};
207
208#define MLX5_FS_VLAN_DEPTH 2
209
210enum {
211 FLOW_ACT_NO_APPEND = BIT(0),
212 FLOW_ACT_IGNORE_FLOW_LEVEL = BIT(1),
213};
214
215struct 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 */
235struct mlx5_flow_handle *
236mlx5_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);
241void mlx5_del_flow_rules(struct mlx5_flow_handle *fr);
242
243int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler,
244 struct mlx5_flow_destination *new_dest,
245 struct mlx5_flow_destination *old_dest);
246
247struct 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. */
250struct mlx5_fc *mlx5_fc_create_ex(struct mlx5_core_dev *dev, bool aging);
251
252void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
253u64 mlx5_fc_query_lastuse(struct mlx5_fc *counter);
254void mlx5_fc_query_cached(struct mlx5_fc *counter,
255 u64 *bytes, u64 *packets, u64 *lastuse);
256int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter,
257 u64 *packets, u64 *bytes);
258u32 mlx5_fc_id(struct mlx5_fc *counter);
259
260int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
261int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
262
263struct mlx5_modify_hdr *mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
264 u8 ns_type, u8 num_actions,
265 void *modify_actions);
266void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev,
267 struct mlx5_modify_hdr *modify_hdr);
268struct mlx5_flow_definer *
269mlx5_create_match_definer(struct mlx5_core_dev *dev,
270 enum mlx5_flow_namespace_type ns_type, u16 format_id,
271 u32 *match_mask);
272void mlx5_destroy_match_definer(struct mlx5_core_dev *dev,
273 struct mlx5_flow_definer *definer);
274int mlx5_get_match_definer_id(struct mlx5_flow_definer *definer);
275
276struct mlx5_pkt_reformat_params {
277 int type;
278 u8 param_0;
279 u8 param_1;
280 size_t size;
281 void *data;
282};
283
284struct 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);
287void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev,
288 struct mlx5_pkt_reformat *reformat);
289
290#endif