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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 | ||
41 | int mlx5_cmd_create_flow_table(struct mlx5_core_dev *dev, | |
42 | enum fs_flow_table_type type, unsigned int level, | |
43 | unsigned int log_size, unsigned int *table_id) | |
44 | { | |
45 | u32 out[MLX5_ST_SZ_DW(create_flow_table_out)]; | |
46 | u32 in[MLX5_ST_SZ_DW(create_flow_table_in)]; | |
47 | int err; | |
48 | ||
49 | memset(in, 0, sizeof(in)); | |
50 | ||
51 | MLX5_SET(create_flow_table_in, in, opcode, | |
52 | MLX5_CMD_OP_CREATE_FLOW_TABLE); | |
53 | ||
54 | MLX5_SET(create_flow_table_in, in, table_type, type); | |
55 | MLX5_SET(create_flow_table_in, in, level, level); | |
56 | MLX5_SET(create_flow_table_in, in, log_size, log_size); | |
57 | ||
58 | memset(out, 0, sizeof(out)); | |
59 | err = mlx5_cmd_exec_check_status(dev, in, sizeof(in), out, | |
60 | sizeof(out)); | |
61 | ||
62 | if (!err) | |
63 | *table_id = MLX5_GET(create_flow_table_out, out, | |
64 | table_id); | |
65 | return err; | |
66 | } | |
67 | ||
68 | int mlx5_cmd_destroy_flow_table(struct mlx5_core_dev *dev, | |
69 | struct mlx5_flow_table *ft) | |
70 | { | |
71 | u32 in[MLX5_ST_SZ_DW(destroy_flow_table_in)]; | |
72 | u32 out[MLX5_ST_SZ_DW(destroy_flow_table_out)]; | |
73 | ||
74 | memset(in, 0, sizeof(in)); | |
75 | memset(out, 0, sizeof(out)); | |
76 | ||
77 | MLX5_SET(destroy_flow_table_in, in, opcode, | |
78 | MLX5_CMD_OP_DESTROY_FLOW_TABLE); | |
79 | MLX5_SET(destroy_flow_table_in, in, table_type, ft->type); | |
80 | MLX5_SET(destroy_flow_table_in, in, table_id, ft->id); | |
81 | ||
82 | return mlx5_cmd_exec_check_status(dev, in, sizeof(in), out, | |
83 | sizeof(out)); | |
84 | } | |
85 | ||
86 | int mlx5_cmd_create_flow_group(struct mlx5_core_dev *dev, | |
87 | struct mlx5_flow_table *ft, | |
88 | u32 *in, | |
89 | unsigned int *group_id) | |
90 | { | |
91 | int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); | |
92 | u32 out[MLX5_ST_SZ_DW(create_flow_group_out)]; | |
93 | int err; | |
94 | ||
95 | memset(out, 0, sizeof(out)); | |
96 | ||
97 | MLX5_SET(create_flow_group_in, in, opcode, | |
98 | MLX5_CMD_OP_CREATE_FLOW_GROUP); | |
99 | MLX5_SET(create_flow_group_in, in, table_type, ft->type); | |
100 | MLX5_SET(create_flow_group_in, in, table_id, ft->id); | |
101 | ||
102 | err = mlx5_cmd_exec_check_status(dev, in, | |
103 | inlen, out, | |
104 | sizeof(out)); | |
105 | if (!err) | |
106 | *group_id = MLX5_GET(create_flow_group_out, out, | |
107 | group_id); | |
108 | ||
109 | return err; | |
110 | } | |
111 | ||
112 | int mlx5_cmd_destroy_flow_group(struct mlx5_core_dev *dev, | |
113 | struct mlx5_flow_table *ft, | |
114 | unsigned int group_id) | |
115 | { | |
116 | u32 out[MLX5_ST_SZ_DW(destroy_flow_group_out)]; | |
117 | u32 in[MLX5_ST_SZ_DW(destroy_flow_group_in)]; | |
118 | ||
119 | memset(in, 0, sizeof(in)); | |
120 | memset(out, 0, sizeof(out)); | |
121 | ||
122 | MLX5_SET(destroy_flow_group_in, in, opcode, | |
123 | MLX5_CMD_OP_DESTROY_FLOW_GROUP); | |
124 | MLX5_SET(destroy_flow_group_in, in, table_type, ft->type); | |
125 | MLX5_SET(destroy_flow_group_in, in, table_id, ft->id); | |
126 | MLX5_SET(destroy_flow_group_in, in, group_id, group_id); | |
127 | ||
128 | return mlx5_cmd_exec_check_status(dev, in, sizeof(in), out, | |
129 | sizeof(out)); | |
130 | } | |
131 | ||
132 | static int mlx5_cmd_set_fte(struct mlx5_core_dev *dev, | |
133 | int opmod, int modify_mask, | |
134 | struct mlx5_flow_table *ft, | |
135 | unsigned group_id, | |
136 | struct fs_fte *fte) | |
137 | { | |
138 | unsigned int inlen = MLX5_ST_SZ_BYTES(set_fte_in) + | |
139 | fte->dests_size * MLX5_ST_SZ_BYTES(dest_format_struct); | |
140 | u32 out[MLX5_ST_SZ_DW(set_fte_out)]; | |
141 | struct mlx5_flow_rule *dst; | |
142 | void *in_flow_context; | |
143 | void *in_match_value; | |
144 | void *in_dests; | |
145 | u32 *in; | |
146 | int err; | |
147 | ||
148 | in = mlx5_vzalloc(inlen); | |
149 | if (!in) { | |
150 | mlx5_core_warn(dev, "failed to allocate inbox\n"); | |
151 | return -ENOMEM; | |
152 | } | |
153 | ||
154 | MLX5_SET(set_fte_in, in, opcode, MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY); | |
155 | MLX5_SET(set_fte_in, in, op_mod, opmod); | |
156 | MLX5_SET(set_fte_in, in, modify_enable_mask, modify_mask); | |
157 | MLX5_SET(set_fte_in, in, table_type, ft->type); | |
158 | MLX5_SET(set_fte_in, in, table_id, ft->id); | |
159 | MLX5_SET(set_fte_in, in, flow_index, fte->index); | |
160 | ||
161 | in_flow_context = MLX5_ADDR_OF(set_fte_in, in, flow_context); | |
162 | MLX5_SET(flow_context, in_flow_context, group_id, group_id); | |
163 | MLX5_SET(flow_context, in_flow_context, flow_tag, fte->flow_tag); | |
164 | MLX5_SET(flow_context, in_flow_context, action, fte->action); | |
165 | MLX5_SET(flow_context, in_flow_context, destination_list_size, | |
166 | fte->dests_size); | |
167 | in_match_value = MLX5_ADDR_OF(flow_context, in_flow_context, | |
168 | match_value); | |
169 | memcpy(in_match_value, &fte->val, MLX5_ST_SZ_BYTES(fte_match_param)); | |
170 | ||
171 | in_dests = MLX5_ADDR_OF(flow_context, in_flow_context, destination); | |
172 | list_for_each_entry(dst, &fte->node.children, node.list) { | |
173 | unsigned int id; | |
174 | ||
175 | MLX5_SET(dest_format_struct, in_dests, destination_type, | |
176 | dst->dest_attr.type); | |
177 | if (dst->dest_attr.type == | |
178 | MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE) | |
179 | id = dst->dest_attr.ft->id; | |
180 | else | |
181 | id = dst->dest_attr.tir_num; | |
182 | MLX5_SET(dest_format_struct, in_dests, destination_id, id); | |
183 | in_dests += MLX5_ST_SZ_BYTES(dest_format_struct); | |
184 | } | |
185 | memset(out, 0, sizeof(out)); | |
186 | err = mlx5_cmd_exec_check_status(dev, in, inlen, out, | |
187 | sizeof(out)); | |
188 | kvfree(in); | |
189 | ||
190 | return err; | |
191 | } | |
192 | ||
193 | int mlx5_cmd_create_fte(struct mlx5_core_dev *dev, | |
194 | struct mlx5_flow_table *ft, | |
195 | unsigned group_id, | |
196 | struct fs_fte *fte) | |
197 | { | |
198 | return mlx5_cmd_set_fte(dev, 0, 0, ft, group_id, fte); | |
199 | } | |
200 | ||
201 | int mlx5_cmd_update_fte(struct mlx5_core_dev *dev, | |
202 | struct mlx5_flow_table *ft, | |
203 | unsigned group_id, | |
204 | struct fs_fte *fte) | |
205 | { | |
206 | int opmod; | |
207 | int modify_mask; | |
208 | int atomic_mod_cap = MLX5_CAP_FLOWTABLE(dev, | |
209 | flow_table_properties_nic_receive. | |
210 | flow_modify_en); | |
211 | if (!atomic_mod_cap) | |
212 | return -ENOTSUPP; | |
213 | opmod = 1; | |
214 | modify_mask = 1 << | |
215 | MLX5_SET_FTE_MODIFY_ENABLE_MASK_DESTINATION_LIST; | |
216 | ||
217 | return mlx5_cmd_set_fte(dev, opmod, modify_mask, ft, group_id, fte); | |
218 | } | |
219 | ||
220 | int mlx5_cmd_delete_fte(struct mlx5_core_dev *dev, | |
221 | struct mlx5_flow_table *ft, | |
222 | unsigned int index) | |
223 | { | |
224 | u32 out[MLX5_ST_SZ_DW(delete_fte_out)]; | |
225 | u32 in[MLX5_ST_SZ_DW(delete_fte_in)]; | |
226 | int err; | |
227 | ||
228 | memset(in, 0, sizeof(in)); | |
229 | memset(out, 0, sizeof(out)); | |
230 | ||
231 | MLX5_SET(delete_fte_in, in, opcode, MLX5_CMD_OP_DELETE_FLOW_TABLE_ENTRY); | |
232 | MLX5_SET(delete_fte_in, in, table_type, ft->type); | |
233 | MLX5_SET(delete_fte_in, in, table_id, ft->id); | |
234 | MLX5_SET(delete_fte_in, in, flow_index, index); | |
235 | ||
236 | err = mlx5_cmd_exec_check_status(dev, in, sizeof(in), out, sizeof(out)); | |
237 | ||
238 | return err; | |
239 | } |