tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
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
43#define MLX5_RDMA_TRANSPORT_BYPASS_PRIO 0
44#define MLX5_FS_MAX_POOL_SIZE BIT(30)
45
46enum mlx5_flow_destination_type {
47 MLX5_FLOW_DESTINATION_TYPE_NONE,
48 MLX5_FLOW_DESTINATION_TYPE_VPORT,
49 MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE,
50 MLX5_FLOW_DESTINATION_TYPE_TIR,
51 MLX5_FLOW_DESTINATION_TYPE_FLOW_SAMPLER,
52 MLX5_FLOW_DESTINATION_TYPE_UPLINK,
53 MLX5_FLOW_DESTINATION_TYPE_PORT,
54 MLX5_FLOW_DESTINATION_TYPE_COUNTER,
55 MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE_NUM,
56 MLX5_FLOW_DESTINATION_TYPE_RANGE,
57 MLX5_FLOW_DESTINATION_TYPE_TABLE_TYPE,
58};
59
60enum {
61 MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO = 1 << 16,
62 MLX5_FLOW_CONTEXT_ACTION_ENCRYPT = 1 << 17,
63 MLX5_FLOW_CONTEXT_ACTION_DECRYPT = 1 << 18,
64 MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS = 1 << 19,
65};
66
67enum {
68 MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT = BIT(0),
69 MLX5_FLOW_TABLE_TUNNEL_EN_DECAP = BIT(1),
70 MLX5_FLOW_TABLE_TERMINATION = BIT(2),
71 MLX5_FLOW_TABLE_UNMANAGED = BIT(3),
72 MLX5_FLOW_TABLE_OTHER_VPORT = BIT(4),
73 MLX5_FLOW_TABLE_UPLINK_VPORT = BIT(5),
74};
75
76#define LEFTOVERS_RULE_NUM 2
77static inline void build_leftovers_ft_param(int *priority,
78 int *n_ent,
79 int *n_grp)
80{
81 *priority = 0; /* Priority of leftovers_prio-0 */
82 *n_ent = LEFTOVERS_RULE_NUM;
83 *n_grp = LEFTOVERS_RULE_NUM;
84}
85
86enum mlx5_flow_namespace_type {
87 MLX5_FLOW_NAMESPACE_BYPASS,
88 MLX5_FLOW_NAMESPACE_KERNEL_RX_MACSEC,
89 MLX5_FLOW_NAMESPACE_LAG,
90 MLX5_FLOW_NAMESPACE_OFFLOADS,
91 MLX5_FLOW_NAMESPACE_ETHTOOL,
92 MLX5_FLOW_NAMESPACE_KERNEL,
93 MLX5_FLOW_NAMESPACE_LEFTOVERS,
94 MLX5_FLOW_NAMESPACE_ANCHOR,
95 MLX5_FLOW_NAMESPACE_FDB_BYPASS,
96 MLX5_FLOW_NAMESPACE_FDB,
97 MLX5_FLOW_NAMESPACE_ESW_EGRESS,
98 MLX5_FLOW_NAMESPACE_ESW_INGRESS,
99 MLX5_FLOW_NAMESPACE_SNIFFER_RX,
100 MLX5_FLOW_NAMESPACE_SNIFFER_TX,
101 MLX5_FLOW_NAMESPACE_EGRESS,
102 MLX5_FLOW_NAMESPACE_EGRESS_IPSEC,
103 MLX5_FLOW_NAMESPACE_EGRESS_MACSEC,
104 MLX5_FLOW_NAMESPACE_RDMA_RX,
105 MLX5_FLOW_NAMESPACE_RDMA_RX_KERNEL,
106 MLX5_FLOW_NAMESPACE_RDMA_TX,
107 MLX5_FLOW_NAMESPACE_PORT_SEL,
108 MLX5_FLOW_NAMESPACE_RDMA_RX_COUNTERS,
109 MLX5_FLOW_NAMESPACE_RDMA_TX_COUNTERS,
110 MLX5_FLOW_NAMESPACE_RDMA_RX_IPSEC,
111 MLX5_FLOW_NAMESPACE_RDMA_TX_IPSEC,
112 MLX5_FLOW_NAMESPACE_RDMA_RX_MACSEC,
113 MLX5_FLOW_NAMESPACE_RDMA_TX_MACSEC,
114 MLX5_FLOW_NAMESPACE_RDMA_TRANSPORT_RX,
115 MLX5_FLOW_NAMESPACE_RDMA_TRANSPORT_TX,
116};
117
118enum {
119 FDB_BYPASS_PATH,
120 FDB_CRYPTO_INGRESS,
121 FDB_TC_OFFLOAD,
122 FDB_FT_OFFLOAD,
123 FDB_TC_MISS,
124 FDB_BR_OFFLOAD,
125 FDB_SLOW_PATH,
126 FDB_CRYPTO_EGRESS,
127 FDB_PER_VPORT,
128};
129
130struct mlx5_pkt_reformat;
131struct mlx5_modify_hdr;
132struct mlx5_flow_definer;
133struct mlx5_flow_table;
134struct mlx5_flow_group;
135struct mlx5_flow_namespace;
136struct mlx5_flow_handle;
137
138enum {
139 FLOW_CONTEXT_HAS_TAG = BIT(0),
140 FLOW_CONTEXT_UPLINK_HAIRPIN_EN = BIT(1),
141};
142
143struct mlx5_flow_context {
144 u32 flags;
145 u32 flow_tag;
146 u32 flow_source;
147};
148
149struct mlx5_flow_spec {
150 u8 match_criteria_enable;
151 u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)];
152 u32 match_value[MLX5_ST_SZ_DW(fte_match_param)];
153 struct mlx5_flow_context flow_context;
154};
155
156enum {
157 MLX5_FLOW_DEST_VPORT_VHCA_ID = BIT(0),
158 MLX5_FLOW_DEST_VPORT_REFORMAT_ID = BIT(1),
159};
160
161enum mlx5_flow_dest_range_field {
162 MLX5_FLOW_DEST_RANGE_FIELD_PKT_LEN = 0,
163};
164
165struct mlx5_flow_destination {
166 enum mlx5_flow_destination_type type;
167 union {
168 u32 tir_num;
169 u32 ft_num;
170 struct mlx5_flow_table *ft;
171 struct mlx5_fc *counter;
172 struct {
173 u16 num;
174 u16 vhca_id;
175 struct mlx5_pkt_reformat *pkt_reformat;
176 u8 flags;
177 } vport;
178 struct {
179 struct mlx5_flow_table *hit_ft;
180 struct mlx5_flow_table *miss_ft;
181 enum mlx5_flow_dest_range_field field;
182 u32 min;
183 u32 max;
184 } range;
185 u32 sampler_id;
186 };
187};
188
189struct mod_hdr_tbl {
190 struct mutex lock; /* protects hlist */
191 DECLARE_HASHTABLE(hlist, 8);
192};
193
194struct mlx5_flow_namespace *
195mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n);
196struct mlx5_flow_namespace *
197mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
198 enum mlx5_flow_namespace_type type);
199struct mlx5_flow_namespace *
200mlx5_get_flow_vport_namespace(struct mlx5_core_dev *dev,
201 enum mlx5_flow_namespace_type type,
202 int vport_idx);
203
204struct mlx5_flow_table_attr {
205 int prio;
206 int max_fte;
207 u32 level;
208 u32 flags;
209 u16 uid;
210 u16 vport;
211 struct mlx5_flow_table *next_ft;
212
213 struct {
214 int max_num_groups;
215 int num_reserved_entries;
216 } autogroup;
217};
218
219struct mlx5_flow_table *
220mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
221 struct mlx5_flow_table_attr *ft_attr);
222
223struct mlx5_flow_table *
224mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
225 struct mlx5_flow_table_attr *ft_attr);
226
227struct mlx5_flow_table *
228mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
229 struct mlx5_flow_table_attr *ft_attr, u16 vport);
230struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
231 struct mlx5_flow_namespace *ns,
232 int prio, u32 level);
233int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
234
235/* inbox should be set with the following values:
236 * start_flow_index
237 * end_flow_index
238 * match_criteria_enable
239 * match_criteria
240 */
241struct mlx5_flow_group *
242mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
243void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
244
245struct mlx5_exe_aso {
246 u32 object_id;
247 int base_id;
248 u8 type;
249 u8 return_reg_id;
250 union {
251 u32 ctrl_data;
252 struct {
253 u8 meter_idx;
254 u8 init_color;
255 } flow_meter;
256 };
257};
258
259struct mlx5_fs_vlan {
260 u16 ethtype;
261 u16 vid;
262 u8 prio;
263};
264
265#define MLX5_FS_VLAN_DEPTH 2
266
267enum {
268 FLOW_ACT_NO_APPEND = BIT(0),
269 FLOW_ACT_IGNORE_FLOW_LEVEL = BIT(1),
270};
271
272struct mlx5_flow_act {
273 u32 action;
274 struct mlx5_modify_hdr *modify_hdr;
275 struct mlx5_pkt_reformat *pkt_reformat;
276 struct mlx5_flow_act_crypto_params {
277 u8 type;
278 u32 obj_id;
279 } crypto;
280 u32 flags;
281 struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH];
282 struct ib_counters *counters;
283 struct mlx5_flow_group *fg;
284 struct mlx5_exe_aso exe_aso;
285};
286
287#define MLX5_DECLARE_FLOW_ACT(name) \
288 struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\
289 .flags = 0, }
290
291/* Single destination per rule.
292 * Group ID is implied by the match criteria.
293 */
294struct mlx5_flow_handle *
295mlx5_add_flow_rules(struct mlx5_flow_table *ft,
296 const struct mlx5_flow_spec *spec,
297 struct mlx5_flow_act *flow_act,
298 struct mlx5_flow_destination *dest,
299 int num_dest);
300void mlx5_del_flow_rules(struct mlx5_flow_handle *fr);
301
302int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler,
303 struct mlx5_flow_destination *new_dest,
304 struct mlx5_flow_destination *old_dest);
305
306struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging);
307
308void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
309struct mlx5_fc *mlx5_fc_local_create(u32 counter_id, u32 offset, u32 bulk_size);
310void mlx5_fc_local_destroy(struct mlx5_fc *counter);
311u64 mlx5_fc_query_lastuse(struct mlx5_fc *counter);
312void mlx5_fc_query_cached(struct mlx5_fc *counter,
313 u64 *bytes, u64 *packets, u64 *lastuse);
314void mlx5_fc_query_cached_raw(struct mlx5_fc *counter,
315 u64 *bytes, u64 *packets, u64 *lastuse);
316int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter,
317 u64 *packets, u64 *bytes);
318u32 mlx5_fc_id(struct mlx5_fc *counter);
319
320int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
321int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
322
323struct mlx5_modify_hdr *mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
324 u8 ns_type, u8 num_actions,
325 void *modify_actions);
326void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev,
327 struct mlx5_modify_hdr *modify_hdr);
328struct mlx5_flow_definer *
329mlx5_create_match_definer(struct mlx5_core_dev *dev,
330 enum mlx5_flow_namespace_type ns_type, u16 format_id,
331 u32 *match_mask);
332void mlx5_destroy_match_definer(struct mlx5_core_dev *dev,
333 struct mlx5_flow_definer *definer);
334int mlx5_get_match_definer_id(struct mlx5_flow_definer *definer);
335
336struct mlx5_pkt_reformat_params {
337 int type;
338 u8 param_0;
339 u8 param_1;
340 size_t size;
341 void *data;
342};
343
344struct mlx5_pkt_reformat *mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev,
345 struct mlx5_pkt_reformat_params *params,
346 enum mlx5_flow_namespace_type ns_type);
347void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev,
348 struct mlx5_pkt_reformat *reformat);
349
350u32 mlx5_flow_table_id(struct mlx5_flow_table *ft);
351
352struct mlx5_flow_root_namespace *
353mlx5_get_root_namespace(struct mlx5_core_dev *dev, enum mlx5_flow_namespace_type ns_type);
354#endif