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