net/mlx5_core: Introduce modify flow table command
[deliverable/linux.git] / drivers / net / ethernet / mellanox / mlx5 / core / fs_cmd.c
CommitLineData
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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#include <linux/mlx5/driver.h>
34#include <linux/mlx5/device.h>
35#include <linux/mlx5/mlx5_ifc.h>
36
37#include "fs_core.h"
38#include "fs_cmd.h"
39#include "mlx5_core.h"
40
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41int mlx5_cmd_update_root_ft(struct mlx5_core_dev *dev,
42 struct mlx5_flow_table *ft)
43{
44 u32 in[MLX5_ST_SZ_DW(set_flow_table_root_in)];
45 u32 out[MLX5_ST_SZ_DW(set_flow_table_root_out)];
46
47 memset(in, 0, sizeof(in));
48
49 MLX5_SET(set_flow_table_root_in, in, opcode,
50 MLX5_CMD_OP_SET_FLOW_TABLE_ROOT);
51 MLX5_SET(set_flow_table_root_in, in, table_type, ft->type);
52 MLX5_SET(set_flow_table_root_in, in, table_id, ft->id);
53
54 memset(out, 0, sizeof(out));
55 return mlx5_cmd_exec_check_status(dev, in, sizeof(in), out,
56 sizeof(out));
57}
58
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59int mlx5_cmd_create_flow_table(struct mlx5_core_dev *dev,
60 enum fs_flow_table_type type, unsigned int level,
61 unsigned int log_size, unsigned int *table_id)
62{
63 u32 out[MLX5_ST_SZ_DW(create_flow_table_out)];
64 u32 in[MLX5_ST_SZ_DW(create_flow_table_in)];
65 int err;
66
67 memset(in, 0, sizeof(in));
68
69 MLX5_SET(create_flow_table_in, in, opcode,
70 MLX5_CMD_OP_CREATE_FLOW_TABLE);
71
72 MLX5_SET(create_flow_table_in, in, table_type, type);
73 MLX5_SET(create_flow_table_in, in, level, level);
74 MLX5_SET(create_flow_table_in, in, log_size, log_size);
75
76 memset(out, 0, sizeof(out));
77 err = mlx5_cmd_exec_check_status(dev, in, sizeof(in), out,
78 sizeof(out));
79
80 if (!err)
81 *table_id = MLX5_GET(create_flow_table_out, out,
82 table_id);
83 return err;
84}
85
86int mlx5_cmd_destroy_flow_table(struct mlx5_core_dev *dev,
87 struct mlx5_flow_table *ft)
88{
89 u32 in[MLX5_ST_SZ_DW(destroy_flow_table_in)];
90 u32 out[MLX5_ST_SZ_DW(destroy_flow_table_out)];
91
92 memset(in, 0, sizeof(in));
93 memset(out, 0, sizeof(out));
94
95 MLX5_SET(destroy_flow_table_in, in, opcode,
96 MLX5_CMD_OP_DESTROY_FLOW_TABLE);
97 MLX5_SET(destroy_flow_table_in, in, table_type, ft->type);
98 MLX5_SET(destroy_flow_table_in, in, table_id, ft->id);
99
100 return mlx5_cmd_exec_check_status(dev, in, sizeof(in), out,
101 sizeof(out));
102}
103
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104int mlx5_cmd_modify_flow_table(struct mlx5_core_dev *dev,
105 struct mlx5_flow_table *ft,
106 struct mlx5_flow_table *next_ft)
107{
108 u32 in[MLX5_ST_SZ_DW(modify_flow_table_in)];
109 u32 out[MLX5_ST_SZ_DW(modify_flow_table_out)];
110
111 memset(in, 0, sizeof(in));
112 memset(out, 0, sizeof(out));
113
114 MLX5_SET(modify_flow_table_in, in, opcode,
115 MLX5_CMD_OP_MODIFY_FLOW_TABLE);
116 MLX5_SET(modify_flow_table_in, in, table_type, ft->type);
117 MLX5_SET(modify_flow_table_in, in, table_id, ft->id);
118 MLX5_SET(modify_flow_table_in, in, modify_field_select,
119 MLX5_MODIFY_FLOW_TABLE_MISS_TABLE_ID);
120 if (next_ft) {
121 MLX5_SET(modify_flow_table_in, in, table_miss_mode, 1);
122 MLX5_SET(modify_flow_table_in, in, table_miss_id, next_ft->id);
123 } else {
124 MLX5_SET(modify_flow_table_in, in, table_miss_mode, 0);
125 }
126
127 return mlx5_cmd_exec_check_status(dev, in, sizeof(in), out,
128 sizeof(out));
129}
130
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131int mlx5_cmd_create_flow_group(struct mlx5_core_dev *dev,
132 struct mlx5_flow_table *ft,
133 u32 *in,
134 unsigned int *group_id)
135{
136 int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
137 u32 out[MLX5_ST_SZ_DW(create_flow_group_out)];
138 int err;
139
140 memset(out, 0, sizeof(out));
141
142 MLX5_SET(create_flow_group_in, in, opcode,
143 MLX5_CMD_OP_CREATE_FLOW_GROUP);
144 MLX5_SET(create_flow_group_in, in, table_type, ft->type);
145 MLX5_SET(create_flow_group_in, in, table_id, ft->id);
146
147 err = mlx5_cmd_exec_check_status(dev, in,
148 inlen, out,
149 sizeof(out));
150 if (!err)
151 *group_id = MLX5_GET(create_flow_group_out, out,
152 group_id);
153
154 return err;
155}
156
157int mlx5_cmd_destroy_flow_group(struct mlx5_core_dev *dev,
158 struct mlx5_flow_table *ft,
159 unsigned int group_id)
160{
161 u32 out[MLX5_ST_SZ_DW(destroy_flow_group_out)];
162 u32 in[MLX5_ST_SZ_DW(destroy_flow_group_in)];
163
164 memset(in, 0, sizeof(in));
165 memset(out, 0, sizeof(out));
166
167 MLX5_SET(destroy_flow_group_in, in, opcode,
168 MLX5_CMD_OP_DESTROY_FLOW_GROUP);
169 MLX5_SET(destroy_flow_group_in, in, table_type, ft->type);
170 MLX5_SET(destroy_flow_group_in, in, table_id, ft->id);
171 MLX5_SET(destroy_flow_group_in, in, group_id, group_id);
172
173 return mlx5_cmd_exec_check_status(dev, in, sizeof(in), out,
174 sizeof(out));
175}
176
177static int mlx5_cmd_set_fte(struct mlx5_core_dev *dev,
178 int opmod, int modify_mask,
179 struct mlx5_flow_table *ft,
180 unsigned group_id,
181 struct fs_fte *fte)
182{
183 unsigned int inlen = MLX5_ST_SZ_BYTES(set_fte_in) +
184 fte->dests_size * MLX5_ST_SZ_BYTES(dest_format_struct);
185 u32 out[MLX5_ST_SZ_DW(set_fte_out)];
186 struct mlx5_flow_rule *dst;
187 void *in_flow_context;
188 void *in_match_value;
189 void *in_dests;
190 u32 *in;
191 int err;
192
193 in = mlx5_vzalloc(inlen);
194 if (!in) {
195 mlx5_core_warn(dev, "failed to allocate inbox\n");
196 return -ENOMEM;
197 }
198
199 MLX5_SET(set_fte_in, in, opcode, MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY);
200 MLX5_SET(set_fte_in, in, op_mod, opmod);
201 MLX5_SET(set_fte_in, in, modify_enable_mask, modify_mask);
202 MLX5_SET(set_fte_in, in, table_type, ft->type);
203 MLX5_SET(set_fte_in, in, table_id, ft->id);
204 MLX5_SET(set_fte_in, in, flow_index, fte->index);
205
206 in_flow_context = MLX5_ADDR_OF(set_fte_in, in, flow_context);
207 MLX5_SET(flow_context, in_flow_context, group_id, group_id);
208 MLX5_SET(flow_context, in_flow_context, flow_tag, fte->flow_tag);
209 MLX5_SET(flow_context, in_flow_context, action, fte->action);
210 MLX5_SET(flow_context, in_flow_context, destination_list_size,
211 fte->dests_size);
212 in_match_value = MLX5_ADDR_OF(flow_context, in_flow_context,
213 match_value);
214 memcpy(in_match_value, &fte->val, MLX5_ST_SZ_BYTES(fte_match_param));
215
216 in_dests = MLX5_ADDR_OF(flow_context, in_flow_context, destination);
217 list_for_each_entry(dst, &fte->node.children, node.list) {
218 unsigned int id;
219
220 MLX5_SET(dest_format_struct, in_dests, destination_type,
221 dst->dest_attr.type);
222 if (dst->dest_attr.type ==
223 MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE)
224 id = dst->dest_attr.ft->id;
225 else
226 id = dst->dest_attr.tir_num;
227 MLX5_SET(dest_format_struct, in_dests, destination_id, id);
228 in_dests += MLX5_ST_SZ_BYTES(dest_format_struct);
229 }
230 memset(out, 0, sizeof(out));
231 err = mlx5_cmd_exec_check_status(dev, in, inlen, out,
232 sizeof(out));
233 kvfree(in);
234
235 return err;
236}
237
238int mlx5_cmd_create_fte(struct mlx5_core_dev *dev,
239 struct mlx5_flow_table *ft,
240 unsigned group_id,
241 struct fs_fte *fte)
242{
243 return mlx5_cmd_set_fte(dev, 0, 0, ft, group_id, fte);
244}
245
246int mlx5_cmd_update_fte(struct mlx5_core_dev *dev,
247 struct mlx5_flow_table *ft,
248 unsigned group_id,
249 struct fs_fte *fte)
250{
251 int opmod;
252 int modify_mask;
253 int atomic_mod_cap = MLX5_CAP_FLOWTABLE(dev,
254 flow_table_properties_nic_receive.
255 flow_modify_en);
256 if (!atomic_mod_cap)
257 return -ENOTSUPP;
258 opmod = 1;
259 modify_mask = 1 <<
260 MLX5_SET_FTE_MODIFY_ENABLE_MASK_DESTINATION_LIST;
261
262 return mlx5_cmd_set_fte(dev, opmod, modify_mask, ft, group_id, fte);
263}
264
265int mlx5_cmd_delete_fte(struct mlx5_core_dev *dev,
266 struct mlx5_flow_table *ft,
267 unsigned int index)
268{
269 u32 out[MLX5_ST_SZ_DW(delete_fte_out)];
270 u32 in[MLX5_ST_SZ_DW(delete_fte_in)];
271 int err;
272
273 memset(in, 0, sizeof(in));
274 memset(out, 0, sizeof(out));
275
276 MLX5_SET(delete_fte_in, in, opcode, MLX5_CMD_OP_DELETE_FLOW_TABLE_ENTRY);
277 MLX5_SET(delete_fte_in, in, table_type, ft->type);
278 MLX5_SET(delete_fte_in, in, table_id, ft->id);
279 MLX5_SET(delete_fte_in, in, flow_index, index);
280
281 err = mlx5_cmd_exec_check_status(dev, in, sizeof(in), out, sizeof(out));
282
283 return err;
284}
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