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de8575e0 MG |
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/mutex.h> | |
34 | #include <linux/mlx5/driver.h> | |
bf3e4d38 | 35 | #include <linux/mlx5/vport.h> |
0efc8562 | 36 | #include <linux/mlx5/eswitch.h> |
db492c1e | 37 | #include <net/devlink.h> |
de8575e0 MG |
38 | |
39 | #include "mlx5_core.h" | |
40 | #include "fs_core.h" | |
0c56b975 | 41 | #include "fs_cmd.h" |
4a98544d | 42 | #include "fs_ft_pool.h" |
4c03e69a | 43 | #include "diag/fs_tracepoint.h" |
db492c1e | 44 | #include "devlink.h" |
0c56b975 | 45 | |
25302363 MG |
46 | #define INIT_TREE_NODE_ARRAY_SIZE(...) (sizeof((struct init_tree_node[]){__VA_ARGS__}) /\ |
47 | sizeof(struct init_tree_node)) | |
48 | ||
a257b94a | 49 | #define ADD_PRIO(num_prios_val, min_level_val, num_levels_val, caps_val,\ |
8d40d162 | 50 | ...) {.type = FS_TYPE_PRIO,\ |
25302363 | 51 | .min_ft_level = min_level_val,\ |
a257b94a | 52 | .num_levels = num_levels_val,\ |
4cbdd30e | 53 | .num_leaf_prios = num_prios_val,\ |
8d40d162 | 54 | .caps = caps_val,\ |
25302363 MG |
55 | .children = (struct init_tree_node[]) {__VA_ARGS__},\ |
56 | .ar_size = INIT_TREE_NODE_ARRAY_SIZE(__VA_ARGS__) \ | |
57 | } | |
58 | ||
a257b94a MG |
59 | #define ADD_MULTIPLE_PRIO(num_prios_val, num_levels_val, ...)\ |
60 | ADD_PRIO(num_prios_val, 0, num_levels_val, {},\ | |
4cbdd30e | 61 | __VA_ARGS__)\ |
25302363 | 62 | |
f66ad830 MZ |
63 | #define ADD_NS(def_miss_act, ...) {.type = FS_TYPE_NAMESPACE, \ |
64 | .def_miss_action = def_miss_act,\ | |
25302363 MG |
65 | .children = (struct init_tree_node[]) {__VA_ARGS__},\ |
66 | .ar_size = INIT_TREE_NODE_ARRAY_SIZE(__VA_ARGS__) \ | |
67 | } | |
68 | ||
8d40d162 MG |
69 | #define INIT_CAPS_ARRAY_SIZE(...) (sizeof((long[]){__VA_ARGS__}) /\ |
70 | sizeof(long)) | |
71 | ||
72 | #define FS_CAP(cap) (__mlx5_bit_off(flow_table_nic_cap, cap)) | |
73 | ||
74 | #define FS_REQUIRED_CAPS(...) {.arr_sz = INIT_CAPS_ARRAY_SIZE(__VA_ARGS__), \ | |
75 | .caps = (long[]) {__VA_ARGS__} } | |
76 | ||
6dc6071c MG |
77 | #define FS_CHAINING_CAPS FS_REQUIRED_CAPS(FS_CAP(flow_table_properties_nic_receive.flow_modify_en), \ |
78 | FS_CAP(flow_table_properties_nic_receive.modify_root), \ | |
79 | FS_CAP(flow_table_properties_nic_receive.identified_miss_table_mode), \ | |
80 | FS_CAP(flow_table_properties_nic_receive.flow_table_modify)) | |
81 | ||
8ce78257 MB |
82 | #define FS_CHAINING_CAPS_EGRESS \ |
83 | FS_REQUIRED_CAPS( \ | |
84 | FS_CAP(flow_table_properties_nic_transmit.flow_modify_en), \ | |
85 | FS_CAP(flow_table_properties_nic_transmit.modify_root), \ | |
86 | FS_CAP(flow_table_properties_nic_transmit \ | |
87 | .identified_miss_table_mode), \ | |
88 | FS_CAP(flow_table_properties_nic_transmit.flow_table_modify)) | |
89 | ||
24670b1a MG |
90 | #define FS_CHAINING_CAPS_RDMA_TX \ |
91 | FS_REQUIRED_CAPS( \ | |
92 | FS_CAP(flow_table_properties_nic_transmit_rdma.flow_modify_en), \ | |
93 | FS_CAP(flow_table_properties_nic_transmit_rdma.modify_root), \ | |
94 | FS_CAP(flow_table_properties_nic_transmit_rdma \ | |
95 | .identified_miss_table_mode), \ | |
96 | FS_CAP(flow_table_properties_nic_transmit_rdma \ | |
97 | .flow_table_modify)) | |
98 | ||
a257b94a | 99 | #define LEFTOVERS_NUM_LEVELS 1 |
4cbdd30e | 100 | #define LEFTOVERS_NUM_PRIOS 1 |
4cbdd30e | 101 | |
b8dfed63 AL |
102 | #define RDMA_RX_COUNTERS_PRIO_NUM_LEVELS 1 |
103 | #define RDMA_TX_COUNTERS_PRIO_NUM_LEVELS 1 | |
104 | ||
a257b94a | 105 | #define BY_PASS_PRIO_NUM_LEVELS 1 |
6dc6071c | 106 | #define BY_PASS_MIN_LEVEL (ETHTOOL_MIN_LEVEL + MLX5_BY_PASS_NUM_PRIOS +\ |
a257b94a MG |
107 | LEFTOVERS_NUM_PRIOS) |
108 | ||
15d187e2 LN |
109 | #define KERNEL_RX_MACSEC_NUM_PRIOS 1 |
110 | #define KERNEL_RX_MACSEC_NUM_LEVELS 2 | |
111 | #define KERNEL_RX_MACSEC_MIN_LEVEL (BY_PASS_MIN_LEVEL + KERNEL_RX_MACSEC_NUM_PRIOS) | |
112 | ||
6dc6071c | 113 | #define ETHTOOL_PRIO_NUM_LEVELS 1 |
e5835f28 | 114 | #define ETHTOOL_NUM_PRIOS 11 |
6dc6071c | 115 | #define ETHTOOL_MIN_LEVEL (KERNEL_MIN_LEVEL + ETHTOOL_NUM_PRIOS) |
89957760 MZ |
116 | /* Promiscuous, Vlan, mac, ttc, inner ttc, {UDP/ANY/aRFS/accel/{esp, esp_err}}, IPsec policy, |
117 | * IPsec RoCE policy | |
118 | */ | |
119 | #define KERNEL_NIC_PRIO_NUM_LEVELS 9 | |
13de6c10 MG |
120 | #define KERNEL_NIC_NUM_PRIOS 1 |
121 | /* One more level for tc */ | |
122 | #define KERNEL_MIN_LEVEL (KERNEL_NIC_PRIO_NUM_LEVELS + 1) | |
8d40d162 | 123 | |
479f074c | 124 | #define KERNEL_NIC_TC_NUM_PRIOS 1 |
66cb64e2 | 125 | #define KERNEL_NIC_TC_NUM_LEVELS 3 |
479f074c | 126 | |
a257b94a | 127 | #define ANCHOR_NUM_LEVELS 1 |
153fefbf MG |
128 | #define ANCHOR_NUM_PRIOS 1 |
129 | #define ANCHOR_MIN_LEVEL (BY_PASS_MIN_LEVEL + 1) | |
acbc2004 | 130 | |
20f7b37f | 131 | #define OFFLOADS_MAX_FT 2 |
11b717d6 PB |
132 | #define OFFLOADS_NUM_PRIOS 2 |
133 | #define OFFLOADS_MIN_LEVEL (ANCHOR_MIN_LEVEL + OFFLOADS_NUM_PRIOS) | |
acbc2004 | 134 | |
3e75d4eb AH |
135 | #define LAG_PRIO_NUM_LEVELS 1 |
136 | #define LAG_NUM_PRIOS 1 | |
15d187e2 | 137 | #define LAG_MIN_LEVEL (OFFLOADS_MIN_LEVEL + KERNEL_RX_MACSEC_MIN_LEVEL + 1) |
3e75d4eb | 138 | |
ee92e4f1 | 139 | #define KERNEL_TX_IPSEC_NUM_PRIOS 1 |
d0c19a31 | 140 | #define KERNEL_TX_IPSEC_NUM_LEVELS 3 |
ee534d7f LN |
141 | #define KERNEL_TX_IPSEC_MIN_LEVEL (KERNEL_TX_IPSEC_NUM_LEVELS) |
142 | ||
143 | #define KERNEL_TX_MACSEC_NUM_PRIOS 1 | |
144 | #define KERNEL_TX_MACSEC_NUM_LEVELS 2 | |
145 | #define KERNEL_TX_MACSEC_MIN_LEVEL (KERNEL_TX_IPSEC_MIN_LEVEL + KERNEL_TX_MACSEC_NUM_PRIOS) | |
ee92e4f1 | 146 | |
8d40d162 MG |
147 | struct node_caps { |
148 | size_t arr_sz; | |
149 | long *caps; | |
150 | }; | |
8963ca45 | 151 | |
25302363 MG |
152 | static struct init_tree_node { |
153 | enum fs_node_type type; | |
154 | struct init_tree_node *children; | |
155 | int ar_size; | |
8d40d162 | 156 | struct node_caps caps; |
25302363 | 157 | int min_ft_level; |
4cbdd30e | 158 | int num_leaf_prios; |
25302363 | 159 | int prio; |
a257b94a | 160 | int num_levels; |
f66ad830 | 161 | enum mlx5_flow_table_miss_action def_miss_action; |
25302363 MG |
162 | } root_fs = { |
163 | .type = FS_TYPE_NAMESPACE, | |
15d187e2 | 164 | .ar_size = 8, |
f66ad830 MZ |
165 | .children = (struct init_tree_node[]){ |
166 | ADD_PRIO(0, BY_PASS_MIN_LEVEL, 0, FS_CHAINING_CAPS, | |
167 | ADD_NS(MLX5_FLOW_TABLE_MISS_ACTION_DEF, | |
168 | ADD_MULTIPLE_PRIO(MLX5_BY_PASS_NUM_PRIOS, | |
169 | BY_PASS_PRIO_NUM_LEVELS))), | |
15d187e2 LN |
170 | ADD_PRIO(0, KERNEL_RX_MACSEC_MIN_LEVEL, 0, FS_CHAINING_CAPS, |
171 | ADD_NS(MLX5_FLOW_TABLE_MISS_ACTION_DEF, | |
172 | ADD_MULTIPLE_PRIO(KERNEL_RX_MACSEC_NUM_PRIOS, | |
173 | KERNEL_RX_MACSEC_NUM_LEVELS))), | |
f66ad830 MZ |
174 | ADD_PRIO(0, LAG_MIN_LEVEL, 0, FS_CHAINING_CAPS, |
175 | ADD_NS(MLX5_FLOW_TABLE_MISS_ACTION_DEF, | |
176 | ADD_MULTIPLE_PRIO(LAG_NUM_PRIOS, | |
177 | LAG_PRIO_NUM_LEVELS))), | |
20f7b37f | 178 | ADD_PRIO(0, OFFLOADS_MIN_LEVEL, 0, FS_CHAINING_CAPS, |
f66ad830 MZ |
179 | ADD_NS(MLX5_FLOW_TABLE_MISS_ACTION_DEF, |
180 | ADD_MULTIPLE_PRIO(OFFLOADS_NUM_PRIOS, | |
181 | OFFLOADS_MAX_FT))), | |
182 | ADD_PRIO(0, ETHTOOL_MIN_LEVEL, 0, FS_CHAINING_CAPS, | |
183 | ADD_NS(MLX5_FLOW_TABLE_MISS_ACTION_DEF, | |
184 | ADD_MULTIPLE_PRIO(ETHTOOL_NUM_PRIOS, | |
185 | ETHTOOL_PRIO_NUM_LEVELS))), | |
186 | ADD_PRIO(0, KERNEL_MIN_LEVEL, 0, {}, | |
187 | ADD_NS(MLX5_FLOW_TABLE_MISS_ACTION_DEF, | |
188 | ADD_MULTIPLE_PRIO(KERNEL_NIC_TC_NUM_PRIOS, | |
189 | KERNEL_NIC_TC_NUM_LEVELS), | |
190 | ADD_MULTIPLE_PRIO(KERNEL_NIC_NUM_PRIOS, | |
191 | KERNEL_NIC_PRIO_NUM_LEVELS))), | |
192 | ADD_PRIO(0, BY_PASS_MIN_LEVEL, 0, FS_CHAINING_CAPS, | |
193 | ADD_NS(MLX5_FLOW_TABLE_MISS_ACTION_DEF, | |
194 | ADD_MULTIPLE_PRIO(LEFTOVERS_NUM_PRIOS, | |
195 | LEFTOVERS_NUM_LEVELS))), | |
196 | ADD_PRIO(0, ANCHOR_MIN_LEVEL, 0, {}, | |
197 | ADD_NS(MLX5_FLOW_TABLE_MISS_ACTION_DEF, | |
198 | ADD_MULTIPLE_PRIO(ANCHOR_NUM_PRIOS, | |
199 | ANCHOR_NUM_LEVELS))), | |
25302363 MG |
200 | } |
201 | }; | |
202 | ||
8ce78257 MB |
203 | static struct init_tree_node egress_root_fs = { |
204 | .type = FS_TYPE_NAMESPACE, | |
ee534d7f | 205 | .ar_size = 3, |
8ce78257 MB |
206 | .children = (struct init_tree_node[]) { |
207 | ADD_PRIO(0, MLX5_BY_PASS_NUM_PRIOS, 0, | |
208 | FS_CHAINING_CAPS_EGRESS, | |
f66ad830 MZ |
209 | ADD_NS(MLX5_FLOW_TABLE_MISS_ACTION_DEF, |
210 | ADD_MULTIPLE_PRIO(MLX5_BY_PASS_NUM_PRIOS, | |
8ce78257 | 211 | BY_PASS_PRIO_NUM_LEVELS))), |
ee534d7f | 212 | ADD_PRIO(0, KERNEL_TX_IPSEC_MIN_LEVEL, 0, |
ee92e4f1 HN |
213 | FS_CHAINING_CAPS_EGRESS, |
214 | ADD_NS(MLX5_FLOW_TABLE_MISS_ACTION_DEF, | |
215 | ADD_MULTIPLE_PRIO(KERNEL_TX_IPSEC_NUM_PRIOS, | |
216 | KERNEL_TX_IPSEC_NUM_LEVELS))), | |
ee534d7f LN |
217 | ADD_PRIO(0, KERNEL_TX_MACSEC_MIN_LEVEL, 0, |
218 | FS_CHAINING_CAPS_EGRESS, | |
219 | ADD_NS(MLX5_FLOW_TABLE_MISS_ACTION_DEF, | |
220 | ADD_MULTIPLE_PRIO(KERNEL_TX_MACSEC_NUM_PRIOS, | |
221 | KERNEL_TX_MACSEC_NUM_LEVELS))), | |
8ce78257 MB |
222 | } |
223 | }; | |
224 | ||
b8dfed63 | 225 | enum { |
f91ddd3a | 226 | RDMA_RX_IPSEC_PRIO, |
b8dfed63 AL |
227 | RDMA_RX_COUNTERS_PRIO, |
228 | RDMA_RX_BYPASS_PRIO, | |
229 | RDMA_RX_KERNEL_PRIO, | |
230 | }; | |
231 | ||
f91ddd3a MZ |
232 | #define RDMA_RX_IPSEC_NUM_PRIOS 1 |
233 | #define RDMA_RX_IPSEC_NUM_LEVELS 2 | |
234 | #define RDMA_RX_IPSEC_MIN_LEVEL (RDMA_RX_IPSEC_NUM_LEVELS) | |
235 | ||
b8dfed63 AL |
236 | #define RDMA_RX_BYPASS_MIN_LEVEL MLX5_BY_PASS_NUM_REGULAR_PRIOS |
237 | #define RDMA_RX_KERNEL_MIN_LEVEL (RDMA_RX_BYPASS_MIN_LEVEL + 1) | |
238 | #define RDMA_RX_COUNTERS_MIN_LEVEL (RDMA_RX_KERNEL_MIN_LEVEL + 2) | |
239 | ||
e6806e9a MZ |
240 | static struct init_tree_node rdma_rx_root_fs = { |
241 | .type = FS_TYPE_NAMESPACE, | |
f91ddd3a | 242 | .ar_size = 4, |
e6806e9a | 243 | .children = (struct init_tree_node[]) { |
f91ddd3a MZ |
244 | [RDMA_RX_IPSEC_PRIO] = |
245 | ADD_PRIO(0, RDMA_RX_IPSEC_MIN_LEVEL, 0, | |
246 | FS_CHAINING_CAPS, | |
247 | ADD_NS(MLX5_FLOW_TABLE_MISS_ACTION_DEF, | |
248 | ADD_MULTIPLE_PRIO(RDMA_RX_IPSEC_NUM_PRIOS, | |
249 | RDMA_RX_IPSEC_NUM_LEVELS))), | |
b8dfed63 AL |
250 | [RDMA_RX_COUNTERS_PRIO] = |
251 | ADD_PRIO(0, RDMA_RX_COUNTERS_MIN_LEVEL, 0, | |
252 | FS_CHAINING_CAPS, | |
253 | ADD_NS(MLX5_FLOW_TABLE_MISS_ACTION_DEF, | |
254 | ADD_MULTIPLE_PRIO(MLX5_RDMA_RX_NUM_COUNTERS_PRIOS, | |
255 | RDMA_RX_COUNTERS_PRIO_NUM_LEVELS))), | |
e6806e9a | 256 | [RDMA_RX_BYPASS_PRIO] = |
b8dfed63 | 257 | ADD_PRIO(0, RDMA_RX_BYPASS_MIN_LEVEL, 0, |
e6806e9a MZ |
258 | FS_CHAINING_CAPS, |
259 | ADD_NS(MLX5_FLOW_TABLE_MISS_ACTION_DEF, | |
260 | ADD_MULTIPLE_PRIO(MLX5_BY_PASS_NUM_REGULAR_PRIOS, | |
261 | BY_PASS_PRIO_NUM_LEVELS))), | |
262 | [RDMA_RX_KERNEL_PRIO] = | |
b8dfed63 | 263 | ADD_PRIO(0, RDMA_RX_KERNEL_MIN_LEVEL, 0, |
e6806e9a MZ |
264 | FS_CHAINING_CAPS, |
265 | ADD_NS(MLX5_FLOW_TABLE_MISS_ACTION_SWITCH_DOMAIN, | |
266 | ADD_MULTIPLE_PRIO(1, 1))), | |
267 | } | |
268 | }; | |
269 | ||
b8dfed63 AL |
270 | enum { |
271 | RDMA_TX_COUNTERS_PRIO, | |
f91ddd3a | 272 | RDMA_TX_IPSEC_PRIO, |
b8dfed63 AL |
273 | RDMA_TX_BYPASS_PRIO, |
274 | }; | |
275 | ||
276 | #define RDMA_TX_BYPASS_MIN_LEVEL MLX5_BY_PASS_NUM_PRIOS | |
277 | #define RDMA_TX_COUNTERS_MIN_LEVEL (RDMA_TX_BYPASS_MIN_LEVEL + 1) | |
278 | ||
f91ddd3a MZ |
279 | #define RDMA_TX_IPSEC_NUM_PRIOS 1 |
280 | #define RDMA_TX_IPSEC_PRIO_NUM_LEVELS 1 | |
281 | #define RDMA_TX_IPSEC_MIN_LEVEL (RDMA_TX_COUNTERS_MIN_LEVEL + RDMA_TX_IPSEC_NUM_PRIOS) | |
282 | ||
24670b1a MG |
283 | static struct init_tree_node rdma_tx_root_fs = { |
284 | .type = FS_TYPE_NAMESPACE, | |
f91ddd3a | 285 | .ar_size = 3, |
24670b1a | 286 | .children = (struct init_tree_node[]) { |
b8dfed63 AL |
287 | [RDMA_TX_COUNTERS_PRIO] = |
288 | ADD_PRIO(0, RDMA_TX_COUNTERS_MIN_LEVEL, 0, | |
289 | FS_CHAINING_CAPS, | |
290 | ADD_NS(MLX5_FLOW_TABLE_MISS_ACTION_DEF, | |
291 | ADD_MULTIPLE_PRIO(MLX5_RDMA_TX_NUM_COUNTERS_PRIOS, | |
292 | RDMA_TX_COUNTERS_PRIO_NUM_LEVELS))), | |
f91ddd3a MZ |
293 | [RDMA_TX_IPSEC_PRIO] = |
294 | ADD_PRIO(0, RDMA_TX_IPSEC_MIN_LEVEL, 0, | |
295 | FS_CHAINING_CAPS, | |
296 | ADD_NS(MLX5_FLOW_TABLE_MISS_ACTION_DEF, | |
297 | ADD_MULTIPLE_PRIO(RDMA_TX_IPSEC_NUM_PRIOS, | |
298 | RDMA_TX_IPSEC_PRIO_NUM_LEVELS))), | |
299 | ||
b8dfed63 AL |
300 | [RDMA_TX_BYPASS_PRIO] = |
301 | ADD_PRIO(0, RDMA_TX_BYPASS_MIN_LEVEL, 0, | |
24670b1a MG |
302 | FS_CHAINING_CAPS_RDMA_TX, |
303 | ADD_NS(MLX5_FLOW_TABLE_MISS_ACTION_DEF, | |
b8dfed63 | 304 | ADD_MULTIPLE_PRIO(RDMA_TX_BYPASS_MIN_LEVEL, |
24670b1a MG |
305 | BY_PASS_PRIO_NUM_LEVELS))), |
306 | } | |
307 | }; | |
308 | ||
c7784b1c MG |
309 | enum fs_i_lock_class { |
310 | FS_LOCK_GRANDPARENT, | |
311 | FS_LOCK_PARENT, | |
312 | FS_LOCK_CHILD | |
f0d22d18 MG |
313 | }; |
314 | ||
0d235c3f | 315 | static const struct rhashtable_params rhash_fte = { |
c593642c | 316 | .key_len = sizeof_field(struct fs_fte, val), |
0d235c3f MB |
317 | .key_offset = offsetof(struct fs_fte, val), |
318 | .head_offset = offsetof(struct fs_fte, hash), | |
319 | .automatic_shrinking = true, | |
320 | .min_size = 1, | |
321 | }; | |
322 | ||
693c6883 | 323 | static const struct rhashtable_params rhash_fg = { |
c593642c | 324 | .key_len = sizeof_field(struct mlx5_flow_group, mask), |
693c6883 MB |
325 | .key_offset = offsetof(struct mlx5_flow_group, mask), |
326 | .head_offset = offsetof(struct mlx5_flow_group, hash), | |
327 | .automatic_shrinking = true, | |
328 | .min_size = 1, | |
329 | ||
330 | }; | |
331 | ||
bd71b08e MG |
332 | static void del_hw_flow_table(struct fs_node *node); |
333 | static void del_hw_flow_group(struct fs_node *node); | |
334 | static void del_hw_fte(struct fs_node *node); | |
335 | static void del_sw_flow_table(struct fs_node *node); | |
336 | static void del_sw_flow_group(struct fs_node *node); | |
337 | static void del_sw_fte(struct fs_node *node); | |
139ed6c6 MG |
338 | static void del_sw_prio(struct fs_node *node); |
339 | static void del_sw_ns(struct fs_node *node); | |
14c129e3 | 340 | /* Delete rule (destination) is special case that |
bd71b08e MG |
341 | * requires to lock the FTE for all the deletion process. |
342 | */ | |
343 | static void del_sw_hw_rule(struct fs_node *node); | |
814fb875 MB |
344 | static bool mlx5_flow_dests_cmp(struct mlx5_flow_destination *d1, |
345 | struct mlx5_flow_destination *d2); | |
9c26f5f8 | 346 | static void cleanup_root_ns(struct mlx5_flow_root_namespace *root_ns); |
74491de9 MB |
347 | static struct mlx5_flow_rule * |
348 | find_flow_rule(struct fs_fte *fte, | |
349 | struct mlx5_flow_destination *dest); | |
de8575e0 MG |
350 | |
351 | static void tree_init_node(struct fs_node *node, | |
bd71b08e MG |
352 | void (*del_hw_func)(struct fs_node *), |
353 | void (*del_sw_func)(struct fs_node *)) | |
de8575e0 | 354 | { |
dd8e1945 | 355 | refcount_set(&node->refcount, 1); |
de8575e0 MG |
356 | INIT_LIST_HEAD(&node->list); |
357 | INIT_LIST_HEAD(&node->children); | |
c7784b1c | 358 | init_rwsem(&node->lock); |
bd71b08e MG |
359 | node->del_hw_func = del_hw_func; |
360 | node->del_sw_func = del_sw_func; | |
19f100fe | 361 | node->active = false; |
de8575e0 MG |
362 | } |
363 | ||
364 | static void tree_add_node(struct fs_node *node, struct fs_node *parent) | |
365 | { | |
366 | if (parent) | |
dd8e1945 | 367 | refcount_inc(&parent->refcount); |
de8575e0 MG |
368 | node->parent = parent; |
369 | ||
370 | /* Parent is the root */ | |
371 | if (!parent) | |
372 | node->root = node; | |
373 | else | |
374 | node->root = parent->root; | |
375 | } | |
376 | ||
bd71b08e | 377 | static int tree_get_node(struct fs_node *node) |
de8575e0 | 378 | { |
dd8e1945 | 379 | return refcount_inc_not_zero(&node->refcount); |
de8575e0 MG |
380 | } |
381 | ||
bd71b08e MG |
382 | static void nested_down_read_ref_node(struct fs_node *node, |
383 | enum fs_i_lock_class class) | |
de8575e0 MG |
384 | { |
385 | if (node) { | |
bd71b08e | 386 | down_read_nested(&node->lock, class); |
dd8e1945 | 387 | refcount_inc(&node->refcount); |
de8575e0 MG |
388 | } |
389 | } | |
390 | ||
bd71b08e MG |
391 | static void nested_down_write_ref_node(struct fs_node *node, |
392 | enum fs_i_lock_class class) | |
de8575e0 MG |
393 | { |
394 | if (node) { | |
bd71b08e | 395 | down_write_nested(&node->lock, class); |
dd8e1945 | 396 | refcount_inc(&node->refcount); |
de8575e0 MG |
397 | } |
398 | } | |
399 | ||
476d61b7 | 400 | static void down_write_ref_node(struct fs_node *node, bool locked) |
de8575e0 MG |
401 | { |
402 | if (node) { | |
476d61b7 EB |
403 | if (!locked) |
404 | down_write(&node->lock); | |
dd8e1945 | 405 | refcount_inc(&node->refcount); |
de8575e0 MG |
406 | } |
407 | } | |
408 | ||
bd71b08e MG |
409 | static void up_read_ref_node(struct fs_node *node) |
410 | { | |
dd8e1945 | 411 | refcount_dec(&node->refcount); |
bd71b08e MG |
412 | up_read(&node->lock); |
413 | } | |
414 | ||
476d61b7 | 415 | static void up_write_ref_node(struct fs_node *node, bool locked) |
bd71b08e | 416 | { |
dd8e1945 | 417 | refcount_dec(&node->refcount); |
476d61b7 EB |
418 | if (!locked) |
419 | up_write(&node->lock); | |
bd71b08e MG |
420 | } |
421 | ||
476d61b7 | 422 | static void tree_put_node(struct fs_node *node, bool locked) |
de8575e0 MG |
423 | { |
424 | struct fs_node *parent_node = node->parent; | |
425 | ||
dd8e1945 | 426 | if (refcount_dec_and_test(&node->refcount)) { |
bd71b08e MG |
427 | if (node->del_hw_func) |
428 | node->del_hw_func(node); | |
429 | if (parent_node) { | |
476d61b7 | 430 | down_write_ref_node(parent_node, locked); |
de8575e0 | 431 | list_del_init(&node->list); |
bd71b08e | 432 | } |
6eb7a268 RD |
433 | node->del_sw_func(node); |
434 | if (parent_node) | |
435 | up_write_ref_node(parent_node, locked); | |
de8575e0 MG |
436 | node = NULL; |
437 | } | |
de8575e0 | 438 | if (!node && parent_node) |
476d61b7 | 439 | tree_put_node(parent_node, locked); |
de8575e0 MG |
440 | } |
441 | ||
476d61b7 | 442 | static int tree_remove_node(struct fs_node *node, bool locked) |
de8575e0 | 443 | { |
dd8e1945 ER |
444 | if (refcount_read(&node->refcount) > 1) { |
445 | refcount_dec(&node->refcount); | |
b3638e1a MG |
446 | return -EEXIST; |
447 | } | |
476d61b7 | 448 | tree_put_node(node, locked); |
de8575e0 MG |
449 | return 0; |
450 | } | |
5e1626c0 MG |
451 | |
452 | static struct fs_prio *find_prio(struct mlx5_flow_namespace *ns, | |
453 | unsigned int prio) | |
454 | { | |
455 | struct fs_prio *iter_prio; | |
456 | ||
457 | fs_for_each_prio(iter_prio, ns) { | |
458 | if (iter_prio->prio == prio) | |
459 | return iter_prio; | |
460 | } | |
461 | ||
462 | return NULL; | |
463 | } | |
464 | ||
9254f8ed MG |
465 | static bool is_fwd_next_action(u32 action) |
466 | { | |
467 | return action & (MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO | | |
468 | MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS); | |
469 | } | |
470 | ||
a30c8b90 MB |
471 | static bool is_fwd_dest_type(enum mlx5_flow_destination_type type) |
472 | { | |
473 | return type == MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE_NUM || | |
474 | type == MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE || | |
475 | type == MLX5_FLOW_DESTINATION_TYPE_UPLINK || | |
476 | type == MLX5_FLOW_DESTINATION_TYPE_VPORT || | |
477 | type == MLX5_FLOW_DESTINATION_TYPE_FLOW_SAMPLER || | |
38bf24c3 | 478 | type == MLX5_FLOW_DESTINATION_TYPE_TIR || |
4f226b71 MZ |
479 | type == MLX5_FLOW_DESTINATION_TYPE_RANGE || |
480 | type == MLX5_FLOW_DESTINATION_TYPE_TABLE_TYPE; | |
a30c8b90 MB |
481 | } |
482 | ||
693c6883 | 483 | static bool check_valid_spec(const struct mlx5_flow_spec *spec) |
5e1626c0 | 484 | { |
693c6883 MB |
485 | int i; |
486 | ||
693c6883 MB |
487 | for (i = 0; i < MLX5_ST_SZ_DW_MATCH_PARAM; i++) |
488 | if (spec->match_value[i] & ~spec->match_criteria[i]) { | |
489 | pr_warn("mlx5_core: match_value differs from match_criteria\n"); | |
490 | return false; | |
491 | } | |
492 | ||
2aada6c0 | 493 | return true; |
5e1626c0 | 494 | } |
0c56b975 | 495 | |
db202995 | 496 | struct mlx5_flow_root_namespace *find_root(struct fs_node *node) |
0c56b975 MG |
497 | { |
498 | struct fs_node *root; | |
499 | struct mlx5_flow_namespace *ns; | |
500 | ||
501 | root = node->root; | |
502 | ||
503 | if (WARN_ON(root->type != FS_TYPE_NAMESPACE)) { | |
504 | pr_warn("mlx5: flow steering node is not in tree or garbaged\n"); | |
505 | return NULL; | |
506 | } | |
507 | ||
508 | ns = container_of(root, struct mlx5_flow_namespace, node); | |
509 | return container_of(ns, struct mlx5_flow_root_namespace, ns); | |
510 | } | |
511 | ||
a369d4ac MG |
512 | static inline struct mlx5_flow_steering *get_steering(struct fs_node *node) |
513 | { | |
514 | struct mlx5_flow_root_namespace *root = find_root(node); | |
515 | ||
516 | if (root) | |
517 | return root->dev->priv.steering; | |
518 | return NULL; | |
519 | } | |
520 | ||
0c56b975 MG |
521 | static inline struct mlx5_core_dev *get_dev(struct fs_node *node) |
522 | { | |
523 | struct mlx5_flow_root_namespace *root = find_root(node); | |
524 | ||
525 | if (root) | |
526 | return root->dev; | |
527 | return NULL; | |
528 | } | |
529 | ||
139ed6c6 MG |
530 | static void del_sw_ns(struct fs_node *node) |
531 | { | |
532 | kfree(node); | |
533 | } | |
534 | ||
535 | static void del_sw_prio(struct fs_node *node) | |
536 | { | |
537 | kfree(node); | |
538 | } | |
539 | ||
bd71b08e | 540 | static void del_hw_flow_table(struct fs_node *node) |
0c56b975 | 541 | { |
af76c501 | 542 | struct mlx5_flow_root_namespace *root; |
0c56b975 MG |
543 | struct mlx5_flow_table *ft; |
544 | struct mlx5_core_dev *dev; | |
0c56b975 MG |
545 | int err; |
546 | ||
547 | fs_get_obj(ft, node); | |
548 | dev = get_dev(&ft->node); | |
af76c501 | 549 | root = find_root(&ft->node); |
8e4ca986 | 550 | trace_mlx5_fs_del_ft(ft); |
0c56b975 | 551 | |
19f100fe | 552 | if (node->active) { |
ae288a48 | 553 | err = root->cmds->destroy_flow_table(root, ft); |
19f100fe MG |
554 | if (err) |
555 | mlx5_core_warn(dev, "flow steering can't destroy ft\n"); | |
556 | } | |
bd71b08e MG |
557 | } |
558 | ||
559 | static void del_sw_flow_table(struct fs_node *node) | |
560 | { | |
561 | struct mlx5_flow_table *ft; | |
562 | struct fs_prio *prio; | |
563 | ||
564 | fs_get_obj(ft, node); | |
565 | ||
693c6883 | 566 | rhltable_destroy(&ft->fgs_hash); |
aee37f3d RD |
567 | if (ft->node.parent) { |
568 | fs_get_obj(prio, ft->node.parent); | |
569 | prio->num_ft--; | |
570 | } | |
a369d4ac | 571 | kfree(ft); |
0c56b975 MG |
572 | } |
573 | ||
e7aafc8f | 574 | static void modify_fte(struct fs_fte *fte) |
0c56b975 | 575 | { |
af76c501 | 576 | struct mlx5_flow_root_namespace *root; |
0c56b975 MG |
577 | struct mlx5_flow_table *ft; |
578 | struct mlx5_flow_group *fg; | |
e7aafc8f | 579 | struct mlx5_core_dev *dev; |
0c56b975 MG |
580 | int err; |
581 | ||
0c56b975 | 582 | fs_get_obj(fg, fte->node.parent); |
0c56b975 | 583 | fs_get_obj(ft, fg->node.parent); |
e7aafc8f EB |
584 | dev = get_dev(&fte->node); |
585 | ||
586 | root = find_root(&ft->node); | |
ae288a48 | 587 | err = root->cmds->update_fte(root, ft, fg, fte->modify_mask, fte); |
e7aafc8f EB |
588 | if (err) |
589 | mlx5_core_warn(dev, | |
590 | "%s can't del rule fg id=%d fte_index=%d\n", | |
591 | __func__, fg->id, fte->index); | |
592 | fte->modify_mask = 0; | |
593 | } | |
594 | ||
595 | static void del_sw_hw_rule(struct fs_node *node) | |
596 | { | |
597 | struct mlx5_flow_rule *rule; | |
598 | struct fs_fte *fte; | |
599 | ||
600 | fs_get_obj(rule, node); | |
601 | fs_get_obj(fte, rule->node.parent); | |
4c03e69a | 602 | trace_mlx5_fs_del_rule(rule); |
9254f8ed | 603 | if (is_fwd_next_action(rule->sw_action)) { |
b3638e1a MG |
604 | mutex_lock(&rule->dest_attr.ft->lock); |
605 | list_del(&rule->next_ft); | |
606 | mutex_unlock(&rule->dest_attr.ft->lock); | |
607 | } | |
ae058314 | 608 | |
d49d6307 MB |
609 | if (rule->dest_attr.type == MLX5_FLOW_DESTINATION_TYPE_COUNTER) { |
610 | --fte->dests_size; | |
e7aafc8f EB |
611 | fte->modify_mask |= |
612 | BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_ACTION) | | |
613 | BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_FLOW_COUNTERS); | |
d2ec6a35 | 614 | fte->action.action &= ~MLX5_FLOW_CONTEXT_ACTION_COUNT; |
ae058314 MB |
615 | goto out; |
616 | } | |
617 | ||
d49d6307 MB |
618 | if (rule->dest_attr.type == MLX5_FLOW_DESTINATION_TYPE_PORT) { |
619 | --fte->dests_size; | |
8cbcc5ef MG |
620 | fte->modify_mask |= BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_ACTION); |
621 | fte->action.action &= ~MLX5_FLOW_CONTEXT_ACTION_ALLOW; | |
622 | goto out; | |
623 | } | |
624 | ||
a30c8b90 | 625 | if (is_fwd_dest_type(rule->dest_attr.type)) { |
d49d6307 | 626 | --fte->dests_size; |
a30c8b90 MB |
627 | --fte->fwd_dests; |
628 | ||
629 | if (!fte->fwd_dests) | |
630 | fte->action.action &= | |
631 | ~MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; | |
e7aafc8f EB |
632 | fte->modify_mask |= |
633 | BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_DESTINATION_LIST); | |
c3ae3a9c | 634 | goto out; |
ae058314 MB |
635 | } |
636 | out: | |
a369d4ac | 637 | kfree(rule); |
0c56b975 MG |
638 | } |
639 | ||
bd71b08e | 640 | static void del_hw_fte(struct fs_node *node) |
0c56b975 | 641 | { |
af76c501 | 642 | struct mlx5_flow_root_namespace *root; |
0c56b975 MG |
643 | struct mlx5_flow_table *ft; |
644 | struct mlx5_flow_group *fg; | |
645 | struct mlx5_core_dev *dev; | |
646 | struct fs_fte *fte; | |
647 | int err; | |
648 | ||
649 | fs_get_obj(fte, node); | |
650 | fs_get_obj(fg, fte->node.parent); | |
651 | fs_get_obj(ft, fg->node.parent); | |
652 | ||
bd71b08e | 653 | trace_mlx5_fs_del_fte(fte); |
3a09fae0 | 654 | WARN_ON(fte->dests_size); |
0c56b975 | 655 | dev = get_dev(&ft->node); |
af76c501 | 656 | root = find_root(&ft->node); |
19f100fe | 657 | if (node->active) { |
ae288a48 | 658 | err = root->cmds->delete_fte(root, ft, fte); |
19f100fe MG |
659 | if (err) |
660 | mlx5_core_warn(dev, | |
661 | "flow steering can't delete fte in index %d of flow group id %d\n", | |
662 | fte->index, fg->id); | |
79398543 | 663 | node->active = false; |
19f100fe | 664 | } |
bd71b08e MG |
665 | } |
666 | ||
667 | static void del_sw_fte(struct fs_node *node) | |
668 | { | |
1f0593e7 | 669 | struct mlx5_flow_steering *steering = get_steering(node); |
bd71b08e MG |
670 | struct mlx5_flow_group *fg; |
671 | struct fs_fte *fte; | |
672 | int err; | |
673 | ||
674 | fs_get_obj(fte, node); | |
675 | fs_get_obj(fg, fte->node.parent); | |
0c56b975 | 676 | |
19f100fe MG |
677 | err = rhashtable_remove_fast(&fg->ftes_hash, |
678 | &fte->hash, | |
679 | rhash_fte); | |
680 | WARN_ON(err); | |
8802b8a4 | 681 | ida_free(&fg->fte_allocator, fte->index - fg->start_index); |
1f0593e7 | 682 | kmem_cache_free(steering->ftes_cache, fte); |
0c56b975 MG |
683 | } |
684 | ||
bd71b08e | 685 | static void del_hw_flow_group(struct fs_node *node) |
0c56b975 | 686 | { |
af76c501 | 687 | struct mlx5_flow_root_namespace *root; |
0c56b975 MG |
688 | struct mlx5_flow_group *fg; |
689 | struct mlx5_flow_table *ft; | |
690 | struct mlx5_core_dev *dev; | |
691 | ||
692 | fs_get_obj(fg, node); | |
693 | fs_get_obj(ft, fg->node.parent); | |
694 | dev = get_dev(&ft->node); | |
4c03e69a | 695 | trace_mlx5_fs_del_fg(fg); |
0c56b975 | 696 | |
af76c501 | 697 | root = find_root(&ft->node); |
ae288a48 | 698 | if (fg->node.active && root->cmds->destroy_flow_group(root, ft, fg)) |
bd71b08e MG |
699 | mlx5_core_warn(dev, "flow steering can't destroy fg %d of ft %d\n", |
700 | fg->id, ft->id); | |
701 | } | |
702 | ||
703 | static void del_sw_flow_group(struct fs_node *node) | |
704 | { | |
a369d4ac | 705 | struct mlx5_flow_steering *steering = get_steering(node); |
bd71b08e MG |
706 | struct mlx5_flow_group *fg; |
707 | struct mlx5_flow_table *ft; | |
708 | int err; | |
709 | ||
710 | fs_get_obj(fg, node); | |
711 | fs_get_obj(ft, fg->node.parent); | |
32dba76a | 712 | |
0d235c3f | 713 | rhashtable_destroy(&fg->ftes_hash); |
75d1d187 | 714 | ida_destroy(&fg->fte_allocator); |
79cdb0aa PB |
715 | if (ft->autogroup.active && |
716 | fg->max_ftes == ft->autogroup.group_size && | |
717 | fg->start_index < ft->autogroup.max_fte) | |
bd71b08e | 718 | ft->autogroup.num_groups--; |
693c6883 MB |
719 | err = rhltable_remove(&ft->fgs_hash, |
720 | &fg->hash, | |
721 | rhash_fg); | |
722 | WARN_ON(err); | |
a369d4ac | 723 | kmem_cache_free(steering->fgs_cache, fg); |
0c56b975 MG |
724 | } |
725 | ||
f5c2ff17 MG |
726 | static int insert_fte(struct mlx5_flow_group *fg, struct fs_fte *fte) |
727 | { | |
728 | int index; | |
729 | int ret; | |
730 | ||
8802b8a4 | 731 | index = ida_alloc_max(&fg->fte_allocator, fg->max_ftes - 1, GFP_KERNEL); |
f5c2ff17 MG |
732 | if (index < 0) |
733 | return index; | |
734 | ||
735 | fte->index = index + fg->start_index; | |
736 | ret = rhashtable_insert_fast(&fg->ftes_hash, | |
737 | &fte->hash, | |
738 | rhash_fte); | |
739 | if (ret) | |
740 | goto err_ida_remove; | |
741 | ||
742 | tree_add_node(&fte->node, &fg->node); | |
743 | list_add_tail(&fte->node.list, &fg->node.children); | |
744 | return 0; | |
745 | ||
746 | err_ida_remove: | |
8802b8a4 | 747 | ida_free(&fg->fte_allocator, index); |
f5c2ff17 MG |
748 | return ret; |
749 | } | |
750 | ||
a369d4ac | 751 | static struct fs_fte *alloc_fte(struct mlx5_flow_table *ft, |
5233794b | 752 | const struct mlx5_flow_spec *spec, |
f5c2ff17 | 753 | struct mlx5_flow_act *flow_act) |
0c56b975 | 754 | { |
a369d4ac | 755 | struct mlx5_flow_steering *steering = get_steering(&ft->node); |
0c56b975 MG |
756 | struct fs_fte *fte; |
757 | ||
a369d4ac | 758 | fte = kmem_cache_zalloc(steering->ftes_cache, GFP_KERNEL); |
0c56b975 MG |
759 | if (!fte) |
760 | return ERR_PTR(-ENOMEM); | |
761 | ||
bb0ee7dc | 762 | memcpy(fte->val, &spec->match_value, sizeof(fte->val)); |
0c56b975 | 763 | fte->node.type = FS_TYPE_FLOW_ENTRY; |
d2ec6a35 | 764 | fte->action = *flow_act; |
bb0ee7dc | 765 | fte->flow_context = spec->flow_context; |
0c56b975 | 766 | |
cefc2355 | 767 | tree_init_node(&fte->node, del_hw_fte, del_sw_fte); |
19f100fe MG |
768 | |
769 | return fte; | |
19f100fe MG |
770 | } |
771 | ||
a369d4ac MG |
772 | static void dealloc_flow_group(struct mlx5_flow_steering *steering, |
773 | struct mlx5_flow_group *fg) | |
19f100fe MG |
774 | { |
775 | rhashtable_destroy(&fg->ftes_hash); | |
a369d4ac | 776 | kmem_cache_free(steering->fgs_cache, fg); |
19f100fe MG |
777 | } |
778 | ||
a369d4ac MG |
779 | static struct mlx5_flow_group *alloc_flow_group(struct mlx5_flow_steering *steering, |
780 | u8 match_criteria_enable, | |
5233794b | 781 | const void *match_criteria, |
19f100fe MG |
782 | int start_index, |
783 | int end_index) | |
0c56b975 MG |
784 | { |
785 | struct mlx5_flow_group *fg; | |
0d235c3f MB |
786 | int ret; |
787 | ||
a369d4ac | 788 | fg = kmem_cache_zalloc(steering->fgs_cache, GFP_KERNEL); |
0c56b975 MG |
789 | if (!fg) |
790 | return ERR_PTR(-ENOMEM); | |
791 | ||
0d235c3f MB |
792 | ret = rhashtable_init(&fg->ftes_hash, &rhash_fte); |
793 | if (ret) { | |
a369d4ac | 794 | kmem_cache_free(steering->fgs_cache, fg); |
0d235c3f | 795 | return ERR_PTR(ret); |
fc9c5a4a TZ |
796 | } |
797 | ||
75d1d187 | 798 | ida_init(&fg->fte_allocator); |
0c56b975 MG |
799 | fg->mask.match_criteria_enable = match_criteria_enable; |
800 | memcpy(&fg->mask.match_criteria, match_criteria, | |
801 | sizeof(fg->mask.match_criteria)); | |
802 | fg->node.type = FS_TYPE_FLOW_GROUP; | |
19f100fe MG |
803 | fg->start_index = start_index; |
804 | fg->max_ftes = end_index - start_index + 1; | |
805 | ||
806 | return fg; | |
807 | } | |
808 | ||
809 | static struct mlx5_flow_group *alloc_insert_flow_group(struct mlx5_flow_table *ft, | |
810 | u8 match_criteria_enable, | |
5233794b | 811 | const void *match_criteria, |
19f100fe MG |
812 | int start_index, |
813 | int end_index, | |
814 | struct list_head *prev) | |
815 | { | |
a369d4ac | 816 | struct mlx5_flow_steering *steering = get_steering(&ft->node); |
19f100fe MG |
817 | struct mlx5_flow_group *fg; |
818 | int ret; | |
819 | ||
a369d4ac | 820 | fg = alloc_flow_group(steering, match_criteria_enable, match_criteria, |
19f100fe MG |
821 | start_index, end_index); |
822 | if (IS_ERR(fg)) | |
823 | return fg; | |
824 | ||
825 | /* initialize refcnt, add to parent list */ | |
826 | ret = rhltable_insert(&ft->fgs_hash, | |
827 | &fg->hash, | |
828 | rhash_fg); | |
829 | if (ret) { | |
a369d4ac | 830 | dealloc_flow_group(steering, fg); |
19f100fe MG |
831 | return ERR_PTR(ret); |
832 | } | |
833 | ||
bd71b08e | 834 | tree_init_node(&fg->node, del_hw_flow_group, del_sw_flow_group); |
19f100fe MG |
835 | tree_add_node(&fg->node, &ft->node); |
836 | /* Add node to group list */ | |
837 | list_add(&fg->node.list, prev); | |
bd71b08e | 838 | atomic_inc(&ft->node.version); |
19f100fe | 839 | |
0c56b975 MG |
840 | return fg; |
841 | } | |
842 | ||
04745afb | 843 | static struct mlx5_flow_table *alloc_flow_table(int level, u16 vport, |
aaff1bea | 844 | enum fs_flow_table_type table_type, |
c9f1b073 HHZ |
845 | enum fs_flow_table_op_mod op_mod, |
846 | u32 flags) | |
0c56b975 MG |
847 | { |
848 | struct mlx5_flow_table *ft; | |
693c6883 | 849 | int ret; |
0c56b975 MG |
850 | |
851 | ft = kzalloc(sizeof(*ft), GFP_KERNEL); | |
852 | if (!ft) | |
693c6883 MB |
853 | return ERR_PTR(-ENOMEM); |
854 | ||
855 | ret = rhltable_init(&ft->fgs_hash, &rhash_fg); | |
856 | if (ret) { | |
857 | kfree(ft); | |
858 | return ERR_PTR(ret); | |
859 | } | |
0c56b975 MG |
860 | |
861 | ft->level = level; | |
862 | ft->node.type = FS_TYPE_FLOW_TABLE; | |
aaff1bea | 863 | ft->op_mod = op_mod; |
0c56b975 | 864 | ft->type = table_type; |
efdc810b | 865 | ft->vport = vport; |
c9f1b073 | 866 | ft->flags = flags; |
b3638e1a MG |
867 | INIT_LIST_HEAD(&ft->fwd_rules); |
868 | mutex_init(&ft->lock); | |
0c56b975 MG |
869 | |
870 | return ft; | |
871 | } | |
872 | ||
fdb6896f MG |
873 | /* If reverse is false, then we search for the first flow table in the |
874 | * root sub-tree from start(closest from right), else we search for the | |
875 | * last flow table in the root sub-tree till start(closest from left). | |
876 | */ | |
877 | static struct mlx5_flow_table *find_closest_ft_recursive(struct fs_node *root, | |
878 | struct list_head *start, | |
879 | bool reverse) | |
880 | { | |
881 | #define list_advance_entry(pos, reverse) \ | |
882 | ((reverse) ? list_prev_entry(pos, list) : list_next_entry(pos, list)) | |
883 | ||
884 | #define list_for_each_advance_continue(pos, head, reverse) \ | |
885 | for (pos = list_advance_entry(pos, reverse); \ | |
886 | &pos->list != (head); \ | |
887 | pos = list_advance_entry(pos, reverse)) | |
888 | ||
889 | struct fs_node *iter = list_entry(start, struct fs_node, list); | |
890 | struct mlx5_flow_table *ft = NULL; | |
891 | ||
328edb49 | 892 | if (!root || root->type == FS_TYPE_PRIO_CHAINS) |
fdb6896f MG |
893 | return NULL; |
894 | ||
895 | list_for_each_advance_continue(iter, &root->children, reverse) { | |
896 | if (iter->type == FS_TYPE_FLOW_TABLE) { | |
897 | fs_get_obj(ft, iter); | |
898 | return ft; | |
899 | } | |
900 | ft = find_closest_ft_recursive(iter, &iter->children, reverse); | |
901 | if (ft) | |
902 | return ft; | |
903 | } | |
904 | ||
905 | return ft; | |
906 | } | |
907 | ||
59f8f7c8 | 908 | /* If reverse is false then return the first flow table in next priority of |
fdb6896f MG |
909 | * prio in the tree, else return the last flow table in the previous priority |
910 | * of prio in the tree. | |
911 | */ | |
912 | static struct mlx5_flow_table *find_closest_ft(struct fs_prio *prio, bool reverse) | |
913 | { | |
914 | struct mlx5_flow_table *ft = NULL; | |
915 | struct fs_node *curr_node; | |
916 | struct fs_node *parent; | |
917 | ||
918 | parent = prio->node.parent; | |
919 | curr_node = &prio->node; | |
920 | while (!ft && parent) { | |
921 | ft = find_closest_ft_recursive(parent, &curr_node->list, reverse); | |
922 | curr_node = parent; | |
923 | parent = curr_node->parent; | |
924 | } | |
925 | return ft; | |
926 | } | |
927 | ||
928 | /* Assuming all the tree is locked by mutex chain lock */ | |
929 | static struct mlx5_flow_table *find_next_chained_ft(struct fs_prio *prio) | |
930 | { | |
931 | return find_closest_ft(prio, false); | |
932 | } | |
933 | ||
934 | /* Assuming all the tree is locked by mutex chain lock */ | |
935 | static struct mlx5_flow_table *find_prev_chained_ft(struct fs_prio *prio) | |
936 | { | |
937 | return find_closest_ft(prio, true); | |
938 | } | |
939 | ||
9254f8ed MG |
940 | static struct mlx5_flow_table *find_next_fwd_ft(struct mlx5_flow_table *ft, |
941 | struct mlx5_flow_act *flow_act) | |
942 | { | |
9254f8ed | 943 | struct fs_prio *prio; |
59f8f7c8 | 944 | bool next_ns; |
9254f8ed | 945 | |
59f8f7c8 MG |
946 | next_ns = flow_act->action & MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS; |
947 | fs_get_obj(prio, next_ns ? ft->ns->node.parent : ft->node.parent); | |
9254f8ed | 948 | |
59f8f7c8 | 949 | return find_next_chained_ft(prio); |
9254f8ed MG |
950 | } |
951 | ||
f90edfd2 MG |
952 | static int connect_fts_in_prio(struct mlx5_core_dev *dev, |
953 | struct fs_prio *prio, | |
954 | struct mlx5_flow_table *ft) | |
955 | { | |
af76c501 | 956 | struct mlx5_flow_root_namespace *root = find_root(&prio->node); |
f90edfd2 | 957 | struct mlx5_flow_table *iter; |
f90edfd2 MG |
958 | int err; |
959 | ||
960 | fs_for_each_ft(iter, prio) { | |
ae288a48 | 961 | err = root->cmds->modify_flow_table(root, iter, ft); |
f90edfd2 | 962 | if (err) { |
6c4e9bcf LR |
963 | mlx5_core_err(dev, |
964 | "Failed to modify flow table id %d, type %d, err %d\n", | |
965 | iter->id, iter->type, err); | |
f90edfd2 | 966 | /* The driver is out of sync with the FW */ |
f90edfd2 MG |
967 | return err; |
968 | } | |
969 | } | |
970 | return 0; | |
971 | } | |
972 | ||
973 | /* Connect flow tables from previous priority of prio to ft */ | |
974 | static int connect_prev_fts(struct mlx5_core_dev *dev, | |
975 | struct mlx5_flow_table *ft, | |
976 | struct fs_prio *prio) | |
977 | { | |
978 | struct mlx5_flow_table *prev_ft; | |
979 | ||
980 | prev_ft = find_prev_chained_ft(prio); | |
981 | if (prev_ft) { | |
982 | struct fs_prio *prev_prio; | |
983 | ||
984 | fs_get_obj(prev_prio, prev_ft->node.parent); | |
985 | return connect_fts_in_prio(dev, prev_prio, ft); | |
986 | } | |
987 | return 0; | |
988 | } | |
989 | ||
2cc43b49 MG |
990 | static int update_root_ft_create(struct mlx5_flow_table *ft, struct fs_prio |
991 | *prio) | |
992 | { | |
993 | struct mlx5_flow_root_namespace *root = find_root(&prio->node); | |
dae37456 | 994 | struct mlx5_ft_underlay_qp *uqp; |
2cc43b49 | 995 | int min_level = INT_MAX; |
aef6c443 | 996 | int err = 0; |
dae37456 | 997 | u32 qpn; |
2cc43b49 MG |
998 | |
999 | if (root->root_ft) | |
1000 | min_level = root->root_ft->level; | |
1001 | ||
1002 | if (ft->level >= min_level) | |
1003 | return 0; | |
1004 | ||
dae37456 AV |
1005 | if (list_empty(&root->underlay_qpns)) { |
1006 | /* Don't set any QPN (zero) in case QPN list is empty */ | |
1007 | qpn = 0; | |
ae288a48 | 1008 | err = root->cmds->update_root_ft(root, ft, qpn, false); |
dae37456 AV |
1009 | } else { |
1010 | list_for_each_entry(uqp, &root->underlay_qpns, list) { | |
1011 | qpn = uqp->qpn; | |
ae288a48 | 1012 | err = root->cmds->update_root_ft(root, ft, |
af76c501 | 1013 | qpn, false); |
dae37456 AV |
1014 | if (err) |
1015 | break; | |
1016 | } | |
1017 | } | |
1018 | ||
2cc43b49 | 1019 | if (err) |
dae37456 AV |
1020 | mlx5_core_warn(root->dev, |
1021 | "Update root flow table of id(%u) qpn(%d) failed\n", | |
1022 | ft->id, qpn); | |
2cc43b49 MG |
1023 | else |
1024 | root->root_ft = ft; | |
1025 | ||
1026 | return err; | |
1027 | } | |
1028 | ||
74491de9 MB |
1029 | static int _mlx5_modify_rule_destination(struct mlx5_flow_rule *rule, |
1030 | struct mlx5_flow_destination *dest) | |
b3638e1a | 1031 | { |
af76c501 | 1032 | struct mlx5_flow_root_namespace *root; |
b3638e1a MG |
1033 | struct mlx5_flow_table *ft; |
1034 | struct mlx5_flow_group *fg; | |
1035 | struct fs_fte *fte; | |
bd5251db | 1036 | int modify_mask = BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_DESTINATION_LIST); |
b3638e1a MG |
1037 | int err = 0; |
1038 | ||
1039 | fs_get_obj(fte, rule->node.parent); | |
d2ec6a35 | 1040 | if (!(fte->action.action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST)) |
b3638e1a | 1041 | return -EINVAL; |
476d61b7 | 1042 | down_write_ref_node(&fte->node, false); |
b3638e1a MG |
1043 | fs_get_obj(fg, fte->node.parent); |
1044 | fs_get_obj(ft, fg->node.parent); | |
1045 | ||
1046 | memcpy(&rule->dest_attr, dest, sizeof(*dest)); | |
af76c501 | 1047 | root = find_root(&ft->node); |
ae288a48 | 1048 | err = root->cmds->update_fte(root, ft, fg, |
af76c501 | 1049 | modify_mask, fte); |
476d61b7 | 1050 | up_write_ref_node(&fte->node, false); |
b3638e1a MG |
1051 | |
1052 | return err; | |
1053 | } | |
1054 | ||
74491de9 MB |
1055 | int mlx5_modify_rule_destination(struct mlx5_flow_handle *handle, |
1056 | struct mlx5_flow_destination *new_dest, | |
1057 | struct mlx5_flow_destination *old_dest) | |
1058 | { | |
1059 | int i; | |
1060 | ||
1061 | if (!old_dest) { | |
1062 | if (handle->num_rules != 1) | |
1063 | return -EINVAL; | |
1064 | return _mlx5_modify_rule_destination(handle->rule[0], | |
1065 | new_dest); | |
1066 | } | |
1067 | ||
1068 | for (i = 0; i < handle->num_rules; i++) { | |
1069 | if (mlx5_flow_dests_cmp(new_dest, &handle->rule[i]->dest_attr)) | |
1070 | return _mlx5_modify_rule_destination(handle->rule[i], | |
1071 | new_dest); | |
1072 | } | |
1073 | ||
1074 | return -EINVAL; | |
1075 | } | |
1076 | ||
b3638e1a MG |
1077 | /* Modify/set FWD rules that point on old_next_ft to point on new_next_ft */ |
1078 | static int connect_fwd_rules(struct mlx5_core_dev *dev, | |
1079 | struct mlx5_flow_table *new_next_ft, | |
1080 | struct mlx5_flow_table *old_next_ft) | |
1081 | { | |
4c5009c5 | 1082 | struct mlx5_flow_destination dest = {}; |
b3638e1a MG |
1083 | struct mlx5_flow_rule *iter; |
1084 | int err = 0; | |
1085 | ||
1086 | /* new_next_ft and old_next_ft could be NULL only | |
1087 | * when we create/destroy the anchor flow table. | |
1088 | */ | |
1089 | if (!new_next_ft || !old_next_ft) | |
1090 | return 0; | |
1091 | ||
1092 | dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; | |
1093 | dest.ft = new_next_ft; | |
1094 | ||
1095 | mutex_lock(&old_next_ft->lock); | |
1096 | list_splice_init(&old_next_ft->fwd_rules, &new_next_ft->fwd_rules); | |
1097 | mutex_unlock(&old_next_ft->lock); | |
1098 | list_for_each_entry(iter, &new_next_ft->fwd_rules, next_ft) { | |
9254f8ed MG |
1099 | if ((iter->sw_action & MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS) && |
1100 | iter->ft->ns == new_next_ft->ns) | |
1101 | continue; | |
1102 | ||
74491de9 | 1103 | err = _mlx5_modify_rule_destination(iter, &dest); |
b3638e1a MG |
1104 | if (err) |
1105 | pr_err("mlx5_core: failed to modify rule to point on flow table %d\n", | |
1106 | new_next_ft->id); | |
1107 | } | |
1108 | return 0; | |
1109 | } | |
1110 | ||
f90edfd2 MG |
1111 | static int connect_flow_table(struct mlx5_core_dev *dev, struct mlx5_flow_table *ft, |
1112 | struct fs_prio *prio) | |
1113 | { | |
8b54874e | 1114 | struct mlx5_flow_table *next_ft, *first_ft; |
f90edfd2 MG |
1115 | int err = 0; |
1116 | ||
1117 | /* Connect_prev_fts and update_root_ft_create are mutually exclusive */ | |
1118 | ||
8b54874e MG |
1119 | first_ft = list_first_entry_or_null(&prio->node.children, |
1120 | struct mlx5_flow_table, node.list); | |
1121 | if (!first_ft || first_ft->level > ft->level) { | |
f90edfd2 MG |
1122 | err = connect_prev_fts(dev, ft, prio); |
1123 | if (err) | |
1124 | return err; | |
b3638e1a | 1125 | |
8b54874e | 1126 | next_ft = first_ft ? first_ft : find_next_chained_ft(prio); |
b3638e1a MG |
1127 | err = connect_fwd_rules(dev, ft, next_ft); |
1128 | if (err) | |
1129 | return err; | |
f90edfd2 MG |
1130 | } |
1131 | ||
1132 | if (MLX5_CAP_FLOWTABLE(dev, | |
1133 | flow_table_properties_nic_receive.modify_root)) | |
1134 | err = update_root_ft_create(ft, prio); | |
1135 | return err; | |
1136 | } | |
1137 | ||
d63cd286 MG |
1138 | static void list_add_flow_table(struct mlx5_flow_table *ft, |
1139 | struct fs_prio *prio) | |
1140 | { | |
1141 | struct list_head *prev = &prio->node.children; | |
1142 | struct mlx5_flow_table *iter; | |
1143 | ||
1144 | fs_for_each_ft(iter, prio) { | |
1145 | if (iter->level > ft->level) | |
1146 | break; | |
1147 | prev = &iter->node.list; | |
1148 | } | |
1149 | list_add(&ft->node.list, prev); | |
1150 | } | |
1151 | ||
efdc810b | 1152 | static struct mlx5_flow_table *__mlx5_create_flow_table(struct mlx5_flow_namespace *ns, |
b3ba5149 | 1153 | struct mlx5_flow_table_attr *ft_attr, |
aaff1bea | 1154 | enum fs_flow_table_op_mod op_mod, |
b3ba5149 | 1155 | u16 vport) |
0c56b975 | 1156 | { |
b3ba5149 | 1157 | struct mlx5_flow_root_namespace *root = find_root(&ns->node); |
5281a0c9 PB |
1158 | bool unmanaged = ft_attr->flags & MLX5_FLOW_TABLE_UNMANAGED; |
1159 | struct mlx5_flow_table *next_ft; | |
b3ba5149 | 1160 | struct fs_prio *fs_prio = NULL; |
0c56b975 | 1161 | struct mlx5_flow_table *ft; |
b3ba5149 | 1162 | int err; |
0c56b975 MG |
1163 | |
1164 | if (!root) { | |
1165 | pr_err("mlx5: flow steering failed to find root of namespace\n"); | |
1166 | return ERR_PTR(-ENODEV); | |
1167 | } | |
1168 | ||
2cc43b49 | 1169 | mutex_lock(&root->chain_lock); |
b3ba5149 | 1170 | fs_prio = find_prio(ns, ft_attr->prio); |
2cc43b49 MG |
1171 | if (!fs_prio) { |
1172 | err = -EINVAL; | |
1173 | goto unlock_root; | |
1174 | } | |
5281a0c9 PB |
1175 | if (!unmanaged) { |
1176 | /* The level is related to the | |
1177 | * priority level range. | |
1178 | */ | |
1179 | if (ft_attr->level >= fs_prio->num_levels) { | |
1180 | err = -ENOSPC; | |
1181 | goto unlock_root; | |
1182 | } | |
1183 | ||
1184 | ft_attr->level += fs_prio->start_level; | |
0c56b975 | 1185 | } |
5281a0c9 | 1186 | |
d63cd286 MG |
1187 | /* The level is related to the |
1188 | * priority level range. | |
1189 | */ | |
b3ba5149 | 1190 | ft = alloc_flow_table(ft_attr->level, |
efdc810b | 1191 | vport, |
aaff1bea | 1192 | root->table_type, |
b3ba5149 | 1193 | op_mod, ft_attr->flags); |
693c6883 MB |
1194 | if (IS_ERR(ft)) { |
1195 | err = PTR_ERR(ft); | |
2cc43b49 | 1196 | goto unlock_root; |
0c56b975 MG |
1197 | } |
1198 | ||
bd71b08e | 1199 | tree_init_node(&ft->node, del_hw_flow_table, del_sw_flow_table); |
5281a0c9 PB |
1200 | next_ft = unmanaged ? ft_attr->next_ft : |
1201 | find_next_chained_ft(fs_prio); | |
f66ad830 | 1202 | ft->def_miss_action = ns->def_miss_action; |
9254f8ed | 1203 | ft->ns = ns; |
b0bb369e | 1204 | err = root->cmds->create_flow_table(root, ft, ft_attr, next_ft); |
0c56b975 MG |
1205 | if (err) |
1206 | goto free_ft; | |
1207 | ||
5281a0c9 PB |
1208 | if (!unmanaged) { |
1209 | err = connect_flow_table(root->dev, ft, fs_prio); | |
1210 | if (err) | |
1211 | goto destroy_ft; | |
1212 | } | |
1213 | ||
19f100fe | 1214 | ft->node.active = true; |
476d61b7 | 1215 | down_write_ref_node(&fs_prio->node, false); |
5281a0c9 PB |
1216 | if (!unmanaged) { |
1217 | tree_add_node(&ft->node, &fs_prio->node); | |
1218 | list_add_flow_table(ft, fs_prio); | |
1219 | } else { | |
1220 | ft->node.root = fs_prio->node.root; | |
1221 | } | |
0c56b975 | 1222 | fs_prio->num_ft++; |
476d61b7 | 1223 | up_write_ref_node(&fs_prio->node, false); |
2cc43b49 | 1224 | mutex_unlock(&root->chain_lock); |
8e4ca986 | 1225 | trace_mlx5_fs_add_ft(ft); |
0c56b975 | 1226 | return ft; |
2cc43b49 | 1227 | destroy_ft: |
ae288a48 | 1228 | root->cmds->destroy_flow_table(root, ft); |
0c56b975 | 1229 | free_ft: |
487c6ef8 | 1230 | rhltable_destroy(&ft->fgs_hash); |
0c56b975 | 1231 | kfree(ft); |
2cc43b49 MG |
1232 | unlock_root: |
1233 | mutex_unlock(&root->chain_lock); | |
0c56b975 MG |
1234 | return ERR_PTR(err); |
1235 | } | |
1236 | ||
efdc810b | 1237 | struct mlx5_flow_table *mlx5_create_flow_table(struct mlx5_flow_namespace *ns, |
b3ba5149 | 1238 | struct mlx5_flow_table_attr *ft_attr) |
efdc810b | 1239 | { |
b3ba5149 | 1240 | return __mlx5_create_flow_table(ns, ft_attr, FS_FT_OP_MOD_NORMAL, 0); |
efdc810b | 1241 | } |
8d2a9d8d | 1242 | EXPORT_SYMBOL(mlx5_create_flow_table); |
efdc810b | 1243 | |
6c27c56c MB |
1244 | u32 mlx5_flow_table_id(struct mlx5_flow_table *ft) |
1245 | { | |
1246 | return ft->id; | |
1247 | } | |
1248 | EXPORT_SYMBOL(mlx5_flow_table_id); | |
1249 | ||
617b860c PP |
1250 | struct mlx5_flow_table * |
1251 | mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns, | |
1252 | struct mlx5_flow_table_attr *ft_attr, u16 vport) | |
efdc810b | 1253 | { |
617b860c | 1254 | return __mlx5_create_flow_table(ns, ft_attr, FS_FT_OP_MOD_NORMAL, vport); |
efdc810b MHY |
1255 | } |
1256 | ||
b3ba5149 ES |
1257 | struct mlx5_flow_table* |
1258 | mlx5_create_lag_demux_flow_table(struct mlx5_flow_namespace *ns, | |
1259 | int prio, u32 level) | |
aaff1bea | 1260 | { |
b3ba5149 ES |
1261 | struct mlx5_flow_table_attr ft_attr = {}; |
1262 | ||
1263 | ft_attr.level = level; | |
1264 | ft_attr.prio = prio; | |
4a98544d PB |
1265 | ft_attr.max_fte = 1; |
1266 | ||
b3ba5149 | 1267 | return __mlx5_create_flow_table(ns, &ft_attr, FS_FT_OP_MOD_LAG_DEMUX, 0); |
aaff1bea AH |
1268 | } |
1269 | EXPORT_SYMBOL(mlx5_create_lag_demux_flow_table); | |
1270 | ||
71513c05 | 1271 | #define MAX_FLOW_GROUP_SIZE BIT(24) |
b3ba5149 ES |
1272 | struct mlx5_flow_table* |
1273 | mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns, | |
61dc7b01 | 1274 | struct mlx5_flow_table_attr *ft_attr) |
f0d22d18 | 1275 | { |
79cdb0aa | 1276 | int num_reserved_entries = ft_attr->autogroup.num_reserved_entries; |
79cdb0aa | 1277 | int max_num_groups = ft_attr->autogroup.max_num_groups; |
f0d22d18 | 1278 | struct mlx5_flow_table *ft; |
4a98544d | 1279 | int autogroups_max_fte; |
f0d22d18 | 1280 | |
61dc7b01 | 1281 | ft = mlx5_create_flow_table(ns, ft_attr); |
f0d22d18 MG |
1282 | if (IS_ERR(ft)) |
1283 | return ft; | |
1284 | ||
4a98544d PB |
1285 | autogroups_max_fte = ft->max_fte - num_reserved_entries; |
1286 | if (max_num_groups > autogroups_max_fte) | |
1287 | goto err_validate; | |
1288 | if (num_reserved_entries > ft->max_fte) | |
1289 | goto err_validate; | |
1290 | ||
71513c05 PB |
1291 | /* Align the number of groups according to the largest group size */ |
1292 | if (autogroups_max_fte / (max_num_groups + 1) > MAX_FLOW_GROUP_SIZE) | |
1293 | max_num_groups = (autogroups_max_fte / MAX_FLOW_GROUP_SIZE) - 1; | |
1294 | ||
f0d22d18 | 1295 | ft->autogroup.active = true; |
79cdb0aa PB |
1296 | ft->autogroup.required_groups = max_num_groups; |
1297 | ft->autogroup.max_fte = autogroups_max_fte; | |
97fd8da2 | 1298 | /* We save place for flow groups in addition to max types */ |
79cdb0aa | 1299 | ft->autogroup.group_size = autogroups_max_fte / (max_num_groups + 1); |
f0d22d18 MG |
1300 | |
1301 | return ft; | |
4a98544d PB |
1302 | |
1303 | err_validate: | |
1304 | mlx5_destroy_flow_table(ft); | |
1305 | return ERR_PTR(-ENOSPC); | |
f0d22d18 | 1306 | } |
b217ea25 | 1307 | EXPORT_SYMBOL(mlx5_create_auto_grouped_flow_table); |
f0d22d18 | 1308 | |
f0d22d18 MG |
1309 | struct mlx5_flow_group *mlx5_create_flow_group(struct mlx5_flow_table *ft, |
1310 | u32 *fg_in) | |
1311 | { | |
af76c501 | 1312 | struct mlx5_flow_root_namespace *root = find_root(&ft->node); |
0d235c3f MB |
1313 | void *match_criteria = MLX5_ADDR_OF(create_flow_group_in, |
1314 | fg_in, match_criteria); | |
1315 | u8 match_criteria_enable = MLX5_GET(create_flow_group_in, | |
1316 | fg_in, | |
1317 | match_criteria_enable); | |
19f100fe MG |
1318 | int start_index = MLX5_GET(create_flow_group_in, fg_in, |
1319 | start_flow_index); | |
1320 | int end_index = MLX5_GET(create_flow_group_in, fg_in, | |
1321 | end_flow_index); | |
f0d22d18 | 1322 | struct mlx5_flow_group *fg; |
19f100fe | 1323 | int err; |
f0d22d18 | 1324 | |
79cdb0aa | 1325 | if (ft->autogroup.active && start_index < ft->autogroup.max_fte) |
f0d22d18 MG |
1326 | return ERR_PTR(-EPERM); |
1327 | ||
476d61b7 | 1328 | down_write_ref_node(&ft->node, false); |
19f100fe MG |
1329 | fg = alloc_insert_flow_group(ft, match_criteria_enable, match_criteria, |
1330 | start_index, end_index, | |
1331 | ft->node.children.prev); | |
476d61b7 | 1332 | up_write_ref_node(&ft->node, false); |
19f100fe MG |
1333 | if (IS_ERR(fg)) |
1334 | return fg; | |
1335 | ||
ae288a48 | 1336 | err = root->cmds->create_flow_group(root, ft, fg_in, fg); |
19f100fe | 1337 | if (err) { |
476d61b7 | 1338 | tree_put_node(&fg->node, false); |
19f100fe MG |
1339 | return ERR_PTR(err); |
1340 | } | |
1341 | trace_mlx5_fs_add_fg(fg); | |
1342 | fg->node.active = true; | |
0c56b975 MG |
1343 | |
1344 | return fg; | |
1345 | } | |
8d2a9d8d | 1346 | EXPORT_SYMBOL(mlx5_create_flow_group); |
0c56b975 MG |
1347 | |
1348 | static struct mlx5_flow_rule *alloc_rule(struct mlx5_flow_destination *dest) | |
1349 | { | |
1350 | struct mlx5_flow_rule *rule; | |
1351 | ||
1352 | rule = kzalloc(sizeof(*rule), GFP_KERNEL); | |
1353 | if (!rule) | |
1354 | return NULL; | |
1355 | ||
b3638e1a | 1356 | INIT_LIST_HEAD(&rule->next_ft); |
0c56b975 | 1357 | rule->node.type = FS_TYPE_FLOW_DEST; |
60ab4584 AV |
1358 | if (dest) |
1359 | memcpy(&rule->dest_attr, dest, sizeof(*dest)); | |
6510bc0d MB |
1360 | else |
1361 | rule->dest_attr.type = MLX5_FLOW_DESTINATION_TYPE_NONE; | |
0c56b975 MG |
1362 | |
1363 | return rule; | |
1364 | } | |
1365 | ||
74491de9 MB |
1366 | static struct mlx5_flow_handle *alloc_handle(int num_rules) |
1367 | { | |
1368 | struct mlx5_flow_handle *handle; | |
1369 | ||
acafe7e3 | 1370 | handle = kzalloc(struct_size(handle, rule, num_rules), GFP_KERNEL); |
74491de9 MB |
1371 | if (!handle) |
1372 | return NULL; | |
1373 | ||
1374 | handle->num_rules = num_rules; | |
1375 | ||
1376 | return handle; | |
1377 | } | |
1378 | ||
1379 | static void destroy_flow_handle(struct fs_fte *fte, | |
1380 | struct mlx5_flow_handle *handle, | |
1381 | struct mlx5_flow_destination *dest, | |
1382 | int i) | |
1383 | { | |
1384 | for (; --i >= 0;) { | |
dd8e1945 | 1385 | if (refcount_dec_and_test(&handle->rule[i]->node.refcount)) { |
74491de9 MB |
1386 | fte->dests_size--; |
1387 | list_del(&handle->rule[i]->node.list); | |
1388 | kfree(handle->rule[i]); | |
1389 | } | |
1390 | } | |
1391 | kfree(handle); | |
1392 | } | |
1393 | ||
1394 | static struct mlx5_flow_handle * | |
1395 | create_flow_handle(struct fs_fte *fte, | |
1396 | struct mlx5_flow_destination *dest, | |
1397 | int dest_num, | |
1398 | int *modify_mask, | |
1399 | bool *new_rule) | |
1400 | { | |
1401 | struct mlx5_flow_handle *handle; | |
1402 | struct mlx5_flow_rule *rule = NULL; | |
1403 | static int count = BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_FLOW_COUNTERS); | |
1404 | static int dst = BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_DESTINATION_LIST); | |
1405 | int type; | |
1406 | int i = 0; | |
1407 | ||
1408 | handle = alloc_handle((dest_num) ? dest_num : 1); | |
1409 | if (!handle) | |
1410 | return ERR_PTR(-ENOMEM); | |
1411 | ||
1412 | do { | |
1413 | if (dest) { | |
1414 | rule = find_flow_rule(fte, dest + i); | |
1415 | if (rule) { | |
dd8e1945 | 1416 | refcount_inc(&rule->node.refcount); |
74491de9 MB |
1417 | goto rule_found; |
1418 | } | |
1419 | } | |
1420 | ||
1421 | *new_rule = true; | |
1422 | rule = alloc_rule(dest + i); | |
1423 | if (!rule) | |
1424 | goto free_rules; | |
1425 | ||
1426 | /* Add dest to dests list- we need flow tables to be in the | |
1427 | * end of the list for forward to next prio rules. | |
1428 | */ | |
bd71b08e | 1429 | tree_init_node(&rule->node, NULL, del_sw_hw_rule); |
74491de9 MB |
1430 | if (dest && |
1431 | dest[i].type != MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE) | |
1432 | list_add(&rule->node.list, &fte->node.children); | |
1433 | else | |
1434 | list_add_tail(&rule->node.list, &fte->node.children); | |
1435 | if (dest) { | |
1436 | fte->dests_size++; | |
1437 | ||
a30c8b90 MB |
1438 | if (is_fwd_dest_type(dest[i].type)) |
1439 | fte->fwd_dests++; | |
1440 | ||
74491de9 MB |
1441 | type = dest[i].type == |
1442 | MLX5_FLOW_DESTINATION_TYPE_COUNTER; | |
1443 | *modify_mask |= type ? count : dst; | |
1444 | } | |
1445 | rule_found: | |
1446 | handle->rule[i] = rule; | |
1447 | } while (++i < dest_num); | |
1448 | ||
1449 | return handle; | |
1450 | ||
1451 | free_rules: | |
1452 | destroy_flow_handle(fte, handle, dest, i); | |
1453 | return ERR_PTR(-ENOMEM); | |
1454 | } | |
1455 | ||
0c56b975 | 1456 | /* fte should not be deleted while calling this function */ |
74491de9 MB |
1457 | static struct mlx5_flow_handle * |
1458 | add_rule_fte(struct fs_fte *fte, | |
1459 | struct mlx5_flow_group *fg, | |
1460 | struct mlx5_flow_destination *dest, | |
1461 | int dest_num, | |
1462 | bool update_action) | |
0c56b975 | 1463 | { |
af76c501 | 1464 | struct mlx5_flow_root_namespace *root; |
74491de9 | 1465 | struct mlx5_flow_handle *handle; |
0c56b975 | 1466 | struct mlx5_flow_table *ft; |
bd5251db | 1467 | int modify_mask = 0; |
0c56b975 | 1468 | int err; |
74491de9 | 1469 | bool new_rule = false; |
0c56b975 | 1470 | |
74491de9 MB |
1471 | handle = create_flow_handle(fte, dest, dest_num, &modify_mask, |
1472 | &new_rule); | |
1473 | if (IS_ERR(handle) || !new_rule) | |
1474 | goto out; | |
bd5251db | 1475 | |
a6224985 MB |
1476 | if (update_action) |
1477 | modify_mask |= BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_ACTION); | |
bd5251db | 1478 | |
0c56b975 | 1479 | fs_get_obj(ft, fg->node.parent); |
af76c501 | 1480 | root = find_root(&fg->node); |
0501fc47 | 1481 | if (!(fte->status & FS_FTE_STATUS_EXISTING)) |
ae288a48 | 1482 | err = root->cmds->create_fte(root, ft, fg, fte); |
0c56b975 | 1483 | else |
ae288a48 | 1484 | err = root->cmds->update_fte(root, ft, fg, modify_mask, fte); |
0c56b975 | 1485 | if (err) |
74491de9 | 1486 | goto free_handle; |
0c56b975 | 1487 | |
19f100fe | 1488 | fte->node.active = true; |
0c56b975 | 1489 | fte->status |= FS_FTE_STATUS_EXISTING; |
454401ae | 1490 | atomic_inc(&fg->node.version); |
0c56b975 | 1491 | |
74491de9 MB |
1492 | out: |
1493 | return handle; | |
0c56b975 | 1494 | |
74491de9 MB |
1495 | free_handle: |
1496 | destroy_flow_handle(fte, handle, dest, handle->num_rules); | |
0c56b975 MG |
1497 | return ERR_PTR(err); |
1498 | } | |
1499 | ||
19f100fe | 1500 | static struct mlx5_flow_group *alloc_auto_flow_group(struct mlx5_flow_table *ft, |
5233794b | 1501 | const struct mlx5_flow_spec *spec) |
0c56b975 | 1502 | { |
af363705 | 1503 | struct list_head *prev = &ft->node.children; |
79cdb0aa | 1504 | u32 max_fte = ft->autogroup.max_fte; |
19f100fe | 1505 | unsigned int candidate_index = 0; |
f0d22d18 | 1506 | unsigned int group_size = 0; |
79cdb0aa | 1507 | struct mlx5_flow_group *fg; |
f0d22d18 MG |
1508 | |
1509 | if (!ft->autogroup.active) | |
1510 | return ERR_PTR(-ENOENT); | |
1511 | ||
f0d22d18 | 1512 | if (ft->autogroup.num_groups < ft->autogroup.required_groups) |
97fd8da2 | 1513 | group_size = ft->autogroup.group_size; |
f0d22d18 | 1514 | |
79cdb0aa | 1515 | /* max_fte == ft->autogroup.max_types */ |
f0d22d18 MG |
1516 | if (group_size == 0) |
1517 | group_size = 1; | |
1518 | ||
1519 | /* sorted by start_index */ | |
1520 | fs_for_each_fg(fg, ft) { | |
1521 | if (candidate_index + group_size > fg->start_index) | |
1522 | candidate_index = fg->start_index + fg->max_ftes; | |
1523 | else | |
1524 | break; | |
1525 | prev = &fg->node.list; | |
1526 | } | |
1527 | ||
79cdb0aa | 1528 | if (candidate_index + group_size > max_fte) |
19f100fe MG |
1529 | return ERR_PTR(-ENOSPC); |
1530 | ||
1531 | fg = alloc_insert_flow_group(ft, | |
1532 | spec->match_criteria_enable, | |
1533 | spec->match_criteria, | |
1534 | candidate_index, | |
1535 | candidate_index + group_size - 1, | |
1536 | prev); | |
1537 | if (IS_ERR(fg)) | |
f0d22d18 | 1538 | goto out; |
19f100fe | 1539 | |
97fd8da2 MG |
1540 | if (group_size == ft->autogroup.group_size) |
1541 | ft->autogroup.num_groups++; | |
19f100fe MG |
1542 | |
1543 | out: | |
1544 | return fg; | |
1545 | } | |
1546 | ||
1547 | static int create_auto_flow_group(struct mlx5_flow_table *ft, | |
1548 | struct mlx5_flow_group *fg) | |
1549 | { | |
af76c501 | 1550 | struct mlx5_flow_root_namespace *root = find_root(&ft->node); |
19f100fe MG |
1551 | int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); |
1552 | void *match_criteria_addr; | |
3e99df87 SK |
1553 | u8 src_esw_owner_mask_on; |
1554 | void *misc; | |
19f100fe MG |
1555 | int err; |
1556 | u32 *in; | |
1557 | ||
1558 | in = kvzalloc(inlen, GFP_KERNEL); | |
1559 | if (!in) | |
1560 | return -ENOMEM; | |
f0d22d18 MG |
1561 | |
1562 | MLX5_SET(create_flow_group_in, in, match_criteria_enable, | |
19f100fe MG |
1563 | fg->mask.match_criteria_enable); |
1564 | MLX5_SET(create_flow_group_in, in, start_flow_index, fg->start_index); | |
1565 | MLX5_SET(create_flow_group_in, in, end_flow_index, fg->start_index + | |
1566 | fg->max_ftes - 1); | |
3e99df87 SK |
1567 | |
1568 | misc = MLX5_ADDR_OF(fte_match_param, fg->mask.match_criteria, | |
1569 | misc_parameters); | |
1570 | src_esw_owner_mask_on = !!MLX5_GET(fte_match_set_misc, misc, | |
1571 | source_eswitch_owner_vhca_id); | |
1572 | MLX5_SET(create_flow_group_in, in, | |
1573 | source_eswitch_owner_vhca_id_valid, src_esw_owner_mask_on); | |
1574 | ||
f0d22d18 MG |
1575 | match_criteria_addr = MLX5_ADDR_OF(create_flow_group_in, |
1576 | in, match_criteria); | |
19f100fe MG |
1577 | memcpy(match_criteria_addr, fg->mask.match_criteria, |
1578 | sizeof(fg->mask.match_criteria)); | |
1579 | ||
ae288a48 | 1580 | err = root->cmds->create_flow_group(root, ft, in, fg); |
19f100fe MG |
1581 | if (!err) { |
1582 | fg->node.active = true; | |
1583 | trace_mlx5_fs_add_fg(fg); | |
1584 | } | |
f0d22d18 | 1585 | |
f0d22d18 | 1586 | kvfree(in); |
19f100fe | 1587 | return err; |
f0d22d18 MG |
1588 | } |
1589 | ||
814fb875 MB |
1590 | static bool mlx5_flow_dests_cmp(struct mlx5_flow_destination *d1, |
1591 | struct mlx5_flow_destination *d2) | |
1592 | { | |
1593 | if (d1->type == d2->type) { | |
e3a0f40b YK |
1594 | if (((d1->type == MLX5_FLOW_DESTINATION_TYPE_VPORT || |
1595 | d1->type == MLX5_FLOW_DESTINATION_TYPE_UPLINK) && | |
1228e912 EB |
1596 | d1->vport.num == d2->vport.num && |
1597 | d1->vport.flags == d2->vport.flags && | |
c979c445 DL |
1598 | ((d1->vport.flags & MLX5_FLOW_DEST_VPORT_VHCA_ID) ? |
1599 | (d1->vport.vhca_id == d2->vport.vhca_id) : true) && | |
1228e912 | 1600 | ((d1->vport.flags & MLX5_FLOW_DEST_VPORT_REFORMAT_ID) ? |
2b688ea5 MG |
1601 | (d1->vport.pkt_reformat->id == |
1602 | d2->vport.pkt_reformat->id) : true)) || | |
814fb875 MB |
1603 | (d1->type == MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE && |
1604 | d1->ft == d2->ft) || | |
1605 | (d1->type == MLX5_FLOW_DESTINATION_TYPE_TIR && | |
664000b6 YH |
1606 | d1->tir_num == d2->tir_num) || |
1607 | (d1->type == MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE_NUM && | |
6f851556 YK |
1608 | d1->ft_num == d2->ft_num) || |
1609 | (d1->type == MLX5_FLOW_DESTINATION_TYPE_FLOW_SAMPLER && | |
38bf24c3 YK |
1610 | d1->sampler_id == d2->sampler_id) || |
1611 | (d1->type == MLX5_FLOW_DESTINATION_TYPE_RANGE && | |
1612 | d1->range.field == d2->range.field && | |
1613 | d1->range.hit_ft == d2->range.hit_ft && | |
1614 | d1->range.miss_ft == d2->range.miss_ft && | |
1615 | d1->range.min == d2->range.min && | |
1616 | d1->range.max == d2->range.max)) | |
814fb875 MB |
1617 | return true; |
1618 | } | |
1619 | ||
1620 | return false; | |
1621 | } | |
1622 | ||
b3638e1a MG |
1623 | static struct mlx5_flow_rule *find_flow_rule(struct fs_fte *fte, |
1624 | struct mlx5_flow_destination *dest) | |
1625 | { | |
1626 | struct mlx5_flow_rule *rule; | |
1627 | ||
1628 | list_for_each_entry(rule, &fte->node.children, node.list) { | |
814fb875 MB |
1629 | if (mlx5_flow_dests_cmp(&rule->dest_attr, dest)) |
1630 | return rule; | |
b3638e1a MG |
1631 | } |
1632 | return NULL; | |
1633 | } | |
1634 | ||
8fa5e7b2 MB |
1635 | static bool check_conflicting_actions_vlan(const struct mlx5_fs_vlan *vlan0, |
1636 | const struct mlx5_fs_vlan *vlan1) | |
0d235c3f | 1637 | { |
8fa5e7b2 MB |
1638 | return vlan0->ethtype != vlan1->ethtype || |
1639 | vlan0->vid != vlan1->vid || | |
1640 | vlan0->prio != vlan1->prio; | |
1641 | } | |
1642 | ||
1643 | static bool check_conflicting_actions(const struct mlx5_flow_act *act1, | |
1644 | const struct mlx5_flow_act *act2) | |
1645 | { | |
1646 | u32 action1 = act1->action; | |
1647 | u32 action2 = act2->action; | |
1648 | u32 xored_actions; | |
1649 | ||
1650 | xored_actions = action1 ^ action2; | |
0d235c3f MB |
1651 | |
1652 | /* if one rule only wants to count, it's ok */ | |
1653 | if (action1 == MLX5_FLOW_CONTEXT_ACTION_COUNT || | |
1654 | action2 == MLX5_FLOW_CONTEXT_ACTION_COUNT) | |
1655 | return false; | |
1656 | ||
1657 | if (xored_actions & (MLX5_FLOW_CONTEXT_ACTION_DROP | | |
60786f09 | 1658 | MLX5_FLOW_CONTEXT_ACTION_PACKET_REFORMAT | |
96de67a7 | 1659 | MLX5_FLOW_CONTEXT_ACTION_DECAP | |
0c06897a OG |
1660 | MLX5_FLOW_CONTEXT_ACTION_MOD_HDR | |
1661 | MLX5_FLOW_CONTEXT_ACTION_VLAN_POP | | |
8da6fe2a JL |
1662 | MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH | |
1663 | MLX5_FLOW_CONTEXT_ACTION_VLAN_POP_2 | | |
1664 | MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH_2)) | |
0d235c3f MB |
1665 | return true; |
1666 | ||
8fa5e7b2 MB |
1667 | if (action1 & MLX5_FLOW_CONTEXT_ACTION_PACKET_REFORMAT && |
1668 | act1->pkt_reformat != act2->pkt_reformat) | |
1669 | return true; | |
1670 | ||
1671 | if (action1 & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR && | |
1672 | act1->modify_hdr != act2->modify_hdr) | |
1673 | return true; | |
1674 | ||
1675 | if (action1 & MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH && | |
1676 | check_conflicting_actions_vlan(&act1->vlan[0], &act2->vlan[0])) | |
1677 | return true; | |
1678 | ||
1679 | if (action1 & MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH_2 && | |
1680 | check_conflicting_actions_vlan(&act1->vlan[1], &act2->vlan[1])) | |
1681 | return true; | |
1682 | ||
0d235c3f MB |
1683 | return false; |
1684 | } | |
1685 | ||
bb0ee7dc JL |
1686 | static int check_conflicting_ftes(struct fs_fte *fte, |
1687 | const struct mlx5_flow_context *flow_context, | |
1688 | const struct mlx5_flow_act *flow_act) | |
0d235c3f | 1689 | { |
8fa5e7b2 | 1690 | if (check_conflicting_actions(flow_act, &fte->action)) { |
0d235c3f MB |
1691 | mlx5_core_warn(get_dev(&fte->node), |
1692 | "Found two FTEs with conflicting actions\n"); | |
1693 | return -EEXIST; | |
1694 | } | |
1695 | ||
bb0ee7dc JL |
1696 | if ((flow_context->flags & FLOW_CONTEXT_HAS_TAG) && |
1697 | fte->flow_context.flow_tag != flow_context->flow_tag) { | |
0d235c3f MB |
1698 | mlx5_core_warn(get_dev(&fte->node), |
1699 | "FTE flow tag %u already exists with different flow tag %u\n", | |
bb0ee7dc JL |
1700 | fte->flow_context.flow_tag, |
1701 | flow_context->flow_tag); | |
0d235c3f MB |
1702 | return -EEXIST; |
1703 | } | |
1704 | ||
1705 | return 0; | |
1706 | } | |
1707 | ||
74491de9 | 1708 | static struct mlx5_flow_handle *add_rule_fg(struct mlx5_flow_group *fg, |
5233794b | 1709 | const struct mlx5_flow_spec *spec, |
66958ed9 | 1710 | struct mlx5_flow_act *flow_act, |
74491de9 | 1711 | struct mlx5_flow_destination *dest, |
693c6883 MB |
1712 | int dest_num, |
1713 | struct fs_fte *fte) | |
0c56b975 | 1714 | { |
74491de9 | 1715 | struct mlx5_flow_handle *handle; |
bd71b08e | 1716 | int old_action; |
74491de9 | 1717 | int i; |
bd71b08e | 1718 | int ret; |
0c56b975 | 1719 | |
bb0ee7dc | 1720 | ret = check_conflicting_ftes(fte, &spec->flow_context, flow_act); |
bd71b08e MG |
1721 | if (ret) |
1722 | return ERR_PTR(ret); | |
0c56b975 | 1723 | |
d2ec6a35 MB |
1724 | old_action = fte->action.action; |
1725 | fte->action.action |= flow_act->action; | |
bd71b08e MG |
1726 | handle = add_rule_fte(fte, fg, dest, dest_num, |
1727 | old_action != flow_act->action); | |
74491de9 | 1728 | if (IS_ERR(handle)) { |
d2ec6a35 | 1729 | fte->action.action = old_action; |
693c6883 | 1730 | return handle; |
0c56b975 | 1731 | } |
bd71b08e | 1732 | trace_mlx5_fs_set_fte(fte, false); |
0c56b975 | 1733 | |
74491de9 | 1734 | for (i = 0; i < handle->num_rules; i++) { |
dd8e1945 | 1735 | if (refcount_read(&handle->rule[i]->node.refcount) == 1) { |
74491de9 | 1736 | tree_add_node(&handle->rule[i]->node, &fte->node); |
4c03e69a MB |
1737 | trace_mlx5_fs_add_rule(handle->rule[i]); |
1738 | } | |
74491de9 | 1739 | } |
74491de9 | 1740 | return handle; |
0c56b975 MG |
1741 | } |
1742 | ||
171c7625 | 1743 | static bool counter_is_valid(u32 action) |
bd5251db | 1744 | { |
ae058314 | 1745 | return (action & (MLX5_FLOW_CONTEXT_ACTION_DROP | |
4c2573e1 | 1746 | MLX5_FLOW_CONTEXT_ACTION_ALLOW | |
eafa6abd | 1747 | MLX5_FLOW_CONTEXT_ACTION_FWD_DEST)); |
bd5251db AV |
1748 | } |
1749 | ||
d63cd286 | 1750 | static bool dest_is_valid(struct mlx5_flow_destination *dest, |
ff189b43 | 1751 | struct mlx5_flow_act *flow_act, |
d63cd286 MG |
1752 | struct mlx5_flow_table *ft) |
1753 | { | |
ff189b43 PB |
1754 | bool ignore_level = flow_act->flags & FLOW_ACT_IGNORE_FLOW_LEVEL; |
1755 | u32 action = flow_act->action; | |
1756 | ||
bd5251db | 1757 | if (dest && (dest->type == MLX5_FLOW_DESTINATION_TYPE_COUNTER)) |
171c7625 | 1758 | return counter_is_valid(action); |
bd5251db | 1759 | |
d63cd286 MG |
1760 | if (!(action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST)) |
1761 | return true; | |
1762 | ||
ff189b43 | 1763 | if (ignore_level) { |
006f623e | 1764 | if (ft->type != FS_FT_FDB && |
664eab8a PB |
1765 | ft->type != FS_FT_NIC_RX && |
1766 | ft->type != FS_FT_NIC_TX) | |
ff189b43 PB |
1767 | return false; |
1768 | ||
1769 | if (dest->type == MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE && | |
006f623e | 1770 | ft->type != dest->ft->type) |
ff189b43 PB |
1771 | return false; |
1772 | } | |
1773 | ||
d63cd286 MG |
1774 | if (!dest || ((dest->type == |
1775 | MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE) && | |
ff189b43 | 1776 | (dest->ft->level <= ft->level && !ignore_level))) |
d63cd286 MG |
1777 | return false; |
1778 | return true; | |
1779 | } | |
1780 | ||
46719d77 MG |
1781 | struct match_list { |
1782 | struct list_head list; | |
693c6883 | 1783 | struct mlx5_flow_group *g; |
46719d77 MG |
1784 | }; |
1785 | ||
b820ce00 | 1786 | static void free_match_list(struct match_list *head, bool ft_locked) |
46719d77 | 1787 | { |
b820ce00 | 1788 | struct match_list *iter, *match_tmp; |
46719d77 | 1789 | |
b820ce00 EC |
1790 | list_for_each_entry_safe(iter, match_tmp, &head->list, |
1791 | list) { | |
1792 | tree_put_node(&iter->g->node, ft_locked); | |
1793 | list_del(&iter->list); | |
1794 | kfree(iter); | |
46719d77 MG |
1795 | } |
1796 | } | |
1797 | ||
b820ce00 | 1798 | static int build_match_list(struct match_list *match_head, |
46719d77 | 1799 | struct mlx5_flow_table *ft, |
c1948390 | 1800 | const struct mlx5_flow_spec *spec, |
c2c922da | 1801 | struct mlx5_flow_group *fg, |
c1948390 | 1802 | bool ft_locked) |
46719d77 | 1803 | { |
693c6883 | 1804 | struct rhlist_head *tmp, *list; |
46719d77 | 1805 | struct mlx5_flow_group *g; |
693c6883 MB |
1806 | |
1807 | rcu_read_lock(); | |
46719d77 | 1808 | INIT_LIST_HEAD(&match_head->list); |
693c6883 MB |
1809 | /* Collect all fgs which has a matching match_criteria */ |
1810 | list = rhltable_lookup(&ft->fgs_hash, spec, rhash_fg); | |
46719d77 | 1811 | /* RCU is atomic, we can't execute FW commands here */ |
693c6883 MB |
1812 | rhl_for_each_entry_rcu(g, tmp, list, hash) { |
1813 | struct match_list *curr_match; | |
1814 | ||
c2c922da MB |
1815 | if (fg && fg != g) |
1816 | continue; | |
1817 | ||
b820ce00 | 1818 | if (unlikely(!tree_get_node(&g->node))) |
693c6883 | 1819 | continue; |
693c6883 | 1820 | |
46719d77 | 1821 | curr_match = kmalloc(sizeof(*curr_match), GFP_ATOMIC); |
693c6883 | 1822 | if (!curr_match) { |
ee27e330 | 1823 | rcu_read_unlock(); |
c1948390 | 1824 | free_match_list(match_head, ft_locked); |
ee27e330 | 1825 | return -ENOMEM; |
693c6883 MB |
1826 | } |
1827 | curr_match->g = g; | |
46719d77 | 1828 | list_add_tail(&curr_match->list, &match_head->list); |
693c6883 MB |
1829 | } |
1830 | rcu_read_unlock(); | |
08929f32 | 1831 | return 0; |
46719d77 MG |
1832 | } |
1833 | ||
bd71b08e MG |
1834 | static u64 matched_fgs_get_version(struct list_head *match_head) |
1835 | { | |
1836 | struct match_list *iter; | |
1837 | u64 version = 0; | |
1838 | ||
1839 | list_for_each_entry(iter, match_head, list) | |
1840 | version += (u64)atomic_read(&iter->g->node.version); | |
1841 | return version; | |
1842 | } | |
1843 | ||
ad9421e3 | 1844 | static struct fs_fte * |
1f0593e7 PP |
1845 | lookup_fte_locked(struct mlx5_flow_group *g, |
1846 | const u32 *match_value, | |
1847 | bool take_write) | |
7dee607e PP |
1848 | { |
1849 | struct fs_fte *fte_tmp; | |
1850 | ||
1f0593e7 PP |
1851 | if (take_write) |
1852 | nested_down_write_ref_node(&g->node, FS_LOCK_PARENT); | |
1853 | else | |
1854 | nested_down_read_ref_node(&g->node, FS_LOCK_PARENT); | |
1855 | fte_tmp = rhashtable_lookup_fast(&g->ftes_hash, match_value, | |
1856 | rhash_fte); | |
ad9421e3 RD |
1857 | if (!fte_tmp || !tree_get_node(&fte_tmp->node)) { |
1858 | fte_tmp = NULL; | |
1859 | goto out; | |
1860 | } | |
6237634d | 1861 | if (!fte_tmp->node.active) { |
476d61b7 | 1862 | tree_put_node(&fte_tmp->node, false); |
6237634d EB |
1863 | fte_tmp = NULL; |
1864 | goto out; | |
1865 | } | |
ad9421e3 RD |
1866 | |
1867 | nested_down_write_ref_node(&fte_tmp->node, FS_LOCK_CHILD); | |
1868 | out: | |
1f0593e7 PP |
1869 | if (take_write) |
1870 | up_write_ref_node(&g->node, false); | |
7dee607e | 1871 | else |
1f0593e7 PP |
1872 | up_read_ref_node(&g->node); |
1873 | return fte_tmp; | |
7dee607e PP |
1874 | } |
1875 | ||
46719d77 MG |
1876 | static struct mlx5_flow_handle * |
1877 | try_add_to_existing_fg(struct mlx5_flow_table *ft, | |
bd71b08e | 1878 | struct list_head *match_head, |
5233794b | 1879 | const struct mlx5_flow_spec *spec, |
46719d77 MG |
1880 | struct mlx5_flow_act *flow_act, |
1881 | struct mlx5_flow_destination *dest, | |
bd71b08e MG |
1882 | int dest_num, |
1883 | int ft_version) | |
46719d77 | 1884 | { |
a369d4ac | 1885 | struct mlx5_flow_steering *steering = get_steering(&ft->node); |
46719d77 MG |
1886 | struct mlx5_flow_group *g; |
1887 | struct mlx5_flow_handle *rule; | |
46719d77 | 1888 | struct match_list *iter; |
bd71b08e MG |
1889 | bool take_write = false; |
1890 | struct fs_fte *fte; | |
dc638d11 | 1891 | u64 version = 0; |
f5c2ff17 MG |
1892 | int err; |
1893 | ||
bb0ee7dc | 1894 | fte = alloc_fte(ft, spec, flow_act); |
f5c2ff17 MG |
1895 | if (IS_ERR(fte)) |
1896 | return ERR_PTR(-ENOMEM); | |
46719d77 | 1897 | |
bd71b08e | 1898 | search_again_locked: |
d5634fee PB |
1899 | if (flow_act->flags & FLOW_ACT_NO_APPEND) |
1900 | goto skip_search; | |
dc638d11 EC |
1901 | version = matched_fgs_get_version(match_head); |
1902 | /* Try to find an fte with identical match value and attempt update its | |
1903 | * action. | |
1904 | */ | |
bd71b08e MG |
1905 | list_for_each_entry(iter, match_head, list) { |
1906 | struct fs_fte *fte_tmp; | |
693c6883 MB |
1907 | |
1908 | g = iter->g; | |
ad9421e3 RD |
1909 | fte_tmp = lookup_fte_locked(g, spec->match_value, take_write); |
1910 | if (!fte_tmp) | |
bd71b08e | 1911 | continue; |
bb0ee7dc | 1912 | rule = add_rule_fg(g, spec, flow_act, dest, dest_num, fte_tmp); |
a5bfe6b4 | 1913 | /* No error check needed here, because insert_fte() is not called */ |
476d61b7 EB |
1914 | up_write_ref_node(&fte_tmp->node, false); |
1915 | tree_put_node(&fte_tmp->node, false); | |
a369d4ac | 1916 | kmem_cache_free(steering->ftes_cache, fte); |
bd71b08e | 1917 | return rule; |
693c6883 MB |
1918 | } |
1919 | ||
d5634fee PB |
1920 | skip_search: |
1921 | /* No group with matching fte found, or we skipped the search. | |
1922 | * Try to add a new fte to any matching fg. | |
1923 | */ | |
1924 | ||
bd71b08e MG |
1925 | /* Check the ft version, for case that new flow group |
1926 | * was added while the fgs weren't locked | |
1927 | */ | |
1928 | if (atomic_read(&ft->node.version) != ft_version) { | |
1929 | rule = ERR_PTR(-EAGAIN); | |
1930 | goto out; | |
1931 | } | |
b92af5a7 | 1932 | |
dc638d11 EC |
1933 | /* Check the fgs version. If version have changed it could be that an |
1934 | * FTE with the same match value was added while the fgs weren't | |
1935 | * locked. | |
bd71b08e | 1936 | */ |
dc638d11 EC |
1937 | if (!(flow_act->flags & FLOW_ACT_NO_APPEND) && |
1938 | version != matched_fgs_get_version(match_head)) { | |
ad9421e3 | 1939 | take_write = true; |
bd71b08e | 1940 | goto search_again_locked; |
ad9421e3 | 1941 | } |
bd71b08e MG |
1942 | |
1943 | list_for_each_entry(iter, match_head, list) { | |
1944 | g = iter->g; | |
1945 | ||
ad9421e3 RD |
1946 | nested_down_write_ref_node(&g->node, FS_LOCK_PARENT); |
1947 | ||
49c0355d PB |
1948 | if (!g->node.active) { |
1949 | up_write_ref_node(&g->node, false); | |
1950 | continue; | |
1951 | } | |
1952 | ||
f5c2ff17 MG |
1953 | err = insert_fte(g, fte); |
1954 | if (err) { | |
476d61b7 | 1955 | up_write_ref_node(&g->node, false); |
f5c2ff17 | 1956 | if (err == -ENOSPC) |
bd71b08e | 1957 | continue; |
a369d4ac | 1958 | kmem_cache_free(steering->ftes_cache, fte); |
f5c2ff17 | 1959 | return ERR_PTR(err); |
bd71b08e | 1960 | } |
693c6883 | 1961 | |
bd71b08e | 1962 | nested_down_write_ref_node(&fte->node, FS_LOCK_CHILD); |
476d61b7 | 1963 | up_write_ref_node(&g->node, false); |
bb0ee7dc | 1964 | rule = add_rule_fg(g, spec, flow_act, dest, dest_num, fte); |
476d61b7 | 1965 | up_write_ref_node(&fte->node, false); |
a5bfe6b4 MG |
1966 | if (IS_ERR(rule)) |
1967 | tree_put_node(&fte->node, false); | |
bd71b08e MG |
1968 | return rule; |
1969 | } | |
1970 | rule = ERR_PTR(-ENOENT); | |
1971 | out: | |
a369d4ac | 1972 | kmem_cache_free(steering->ftes_cache, fte); |
693c6883 MB |
1973 | return rule; |
1974 | } | |
1975 | ||
74491de9 MB |
1976 | static struct mlx5_flow_handle * |
1977 | _mlx5_add_flow_rules(struct mlx5_flow_table *ft, | |
5233794b | 1978 | const struct mlx5_flow_spec *spec, |
66958ed9 | 1979 | struct mlx5_flow_act *flow_act, |
74491de9 MB |
1980 | struct mlx5_flow_destination *dest, |
1981 | int dest_num) | |
66958ed9 | 1982 | |
0c56b975 | 1983 | { |
a369d4ac | 1984 | struct mlx5_flow_steering *steering = get_steering(&ft->node); |
74491de9 | 1985 | struct mlx5_flow_handle *rule; |
b820ce00 EC |
1986 | struct match_list match_head; |
1987 | struct mlx5_flow_group *g; | |
bd71b08e MG |
1988 | bool take_write = false; |
1989 | struct fs_fte *fte; | |
1990 | int version; | |
19f100fe | 1991 | int err; |
74491de9 | 1992 | int i; |
0c56b975 | 1993 | |
693c6883 | 1994 | if (!check_valid_spec(spec)) |
0d235c3f MB |
1995 | return ERR_PTR(-EINVAL); |
1996 | ||
c2c922da MB |
1997 | if (flow_act->fg && ft->autogroup.active) |
1998 | return ERR_PTR(-EINVAL); | |
1999 | ||
f07d8afb OS |
2000 | if (dest && dest_num <= 0) |
2001 | return ERR_PTR(-EINVAL); | |
2002 | ||
74491de9 | 2003 | for (i = 0; i < dest_num; i++) { |
ff189b43 | 2004 | if (!dest_is_valid(&dest[i], flow_act, ft)) |
74491de9 MB |
2005 | return ERR_PTR(-EINVAL); |
2006 | } | |
bd71b08e MG |
2007 | nested_down_read_ref_node(&ft->node, FS_LOCK_GRANDPARENT); |
2008 | search_again_locked: | |
2009 | version = atomic_read(&ft->node.version); | |
60ab4584 | 2010 | |
bd71b08e | 2011 | /* Collect all fgs which has a matching match_criteria */ |
c2c922da | 2012 | err = build_match_list(&match_head, ft, spec, flow_act->fg, take_write); |
9238e380 VB |
2013 | if (err) { |
2014 | if (take_write) | |
476d61b7 | 2015 | up_write_ref_node(&ft->node, false); |
07130477 RD |
2016 | else |
2017 | up_read_ref_node(&ft->node); | |
bd71b08e | 2018 | return ERR_PTR(err); |
9238e380 | 2019 | } |
bd71b08e MG |
2020 | |
2021 | if (!take_write) | |
2022 | up_read_ref_node(&ft->node); | |
2023 | ||
2024 | rule = try_add_to_existing_fg(ft, &match_head.list, spec, flow_act, dest, | |
2025 | dest_num, version); | |
c1948390 | 2026 | free_match_list(&match_head, take_write); |
bd71b08e | 2027 | if (!IS_ERR(rule) || |
9238e380 VB |
2028 | (PTR_ERR(rule) != -ENOENT && PTR_ERR(rule) != -EAGAIN)) { |
2029 | if (take_write) | |
476d61b7 | 2030 | up_write_ref_node(&ft->node, false); |
bd71b08e | 2031 | return rule; |
9238e380 | 2032 | } |
bd71b08e MG |
2033 | |
2034 | if (!take_write) { | |
2035 | nested_down_write_ref_node(&ft->node, FS_LOCK_GRANDPARENT); | |
2036 | take_write = true; | |
2037 | } | |
2038 | ||
2039 | if (PTR_ERR(rule) == -EAGAIN || | |
2040 | version != atomic_read(&ft->node.version)) | |
2041 | goto search_again_locked; | |
f0d22d18 | 2042 | |
19f100fe | 2043 | g = alloc_auto_flow_group(ft, spec); |
c3f9bf62 | 2044 | if (IS_ERR(g)) { |
d34c6efc | 2045 | rule = ERR_CAST(g); |
476d61b7 | 2046 | up_write_ref_node(&ft->node, false); |
bd71b08e | 2047 | return rule; |
c3f9bf62 MG |
2048 | } |
2049 | ||
84c7af63 PP |
2050 | fte = alloc_fte(ft, spec, flow_act); |
2051 | if (IS_ERR(fte)) { | |
2052 | up_write_ref_node(&ft->node, false); | |
2053 | err = PTR_ERR(fte); | |
2054 | goto err_alloc_fte; | |
2055 | } | |
2056 | ||
bd71b08e | 2057 | nested_down_write_ref_node(&g->node, FS_LOCK_PARENT); |
476d61b7 | 2058 | up_write_ref_node(&ft->node, false); |
bd71b08e | 2059 | |
19f100fe | 2060 | err = create_auto_flow_group(ft, g); |
bd71b08e MG |
2061 | if (err) |
2062 | goto err_release_fg; | |
2063 | ||
f5c2ff17 | 2064 | err = insert_fte(g, fte); |
84c7af63 | 2065 | if (err) |
f5c2ff17 | 2066 | goto err_release_fg; |
f5c2ff17 | 2067 | |
bd71b08e | 2068 | nested_down_write_ref_node(&fte->node, FS_LOCK_CHILD); |
476d61b7 | 2069 | up_write_ref_node(&g->node, false); |
bb0ee7dc | 2070 | rule = add_rule_fg(g, spec, flow_act, dest, dest_num, fte); |
476d61b7 | 2071 | up_write_ref_node(&fte->node, false); |
a5bfe6b4 MG |
2072 | if (IS_ERR(rule)) |
2073 | tree_put_node(&fte->node, false); | |
476d61b7 | 2074 | tree_put_node(&g->node, false); |
0c56b975 | 2075 | return rule; |
bd71b08e MG |
2076 | |
2077 | err_release_fg: | |
476d61b7 | 2078 | up_write_ref_node(&g->node, false); |
84c7af63 PP |
2079 | kmem_cache_free(steering->ftes_cache, fte); |
2080 | err_alloc_fte: | |
476d61b7 | 2081 | tree_put_node(&g->node, false); |
bd71b08e | 2082 | return ERR_PTR(err); |
0c56b975 | 2083 | } |
b3638e1a MG |
2084 | |
2085 | static bool fwd_next_prio_supported(struct mlx5_flow_table *ft) | |
2086 | { | |
2087 | return ((ft->type == FS_FT_NIC_RX) && | |
2088 | (MLX5_CAP_FLOWTABLE(get_dev(&ft->node), nic_rx_multi_path_tirs))); | |
2089 | } | |
2090 | ||
74491de9 MB |
2091 | struct mlx5_flow_handle * |
2092 | mlx5_add_flow_rules(struct mlx5_flow_table *ft, | |
5233794b | 2093 | const struct mlx5_flow_spec *spec, |
66958ed9 | 2094 | struct mlx5_flow_act *flow_act, |
74491de9 | 2095 | struct mlx5_flow_destination *dest, |
cf916ffb | 2096 | int num_dest) |
b3638e1a MG |
2097 | { |
2098 | struct mlx5_flow_root_namespace *root = find_root(&ft->node); | |
5c2aa8ae | 2099 | static const struct mlx5_flow_spec zero_spec = {}; |
14c129e3 | 2100 | struct mlx5_flow_destination *gen_dest = NULL; |
b3638e1a | 2101 | struct mlx5_flow_table *next_ft = NULL; |
74491de9 | 2102 | struct mlx5_flow_handle *handle = NULL; |
66958ed9 | 2103 | u32 sw_action = flow_act->action; |
14c129e3 | 2104 | int i; |
b3638e1a | 2105 | |
5c2aa8ae MB |
2106 | if (!spec) |
2107 | spec = &zero_spec; | |
2108 | ||
9254f8ed | 2109 | if (!is_fwd_next_action(sw_action)) |
14c129e3 MG |
2110 | return _mlx5_add_flow_rules(ft, spec, flow_act, dest, num_dest); |
2111 | ||
2112 | if (!fwd_next_prio_supported(ft)) | |
2113 | return ERR_PTR(-EOPNOTSUPP); | |
2114 | ||
2115 | mutex_lock(&root->chain_lock); | |
9254f8ed | 2116 | next_ft = find_next_fwd_ft(ft, flow_act); |
14c129e3 MG |
2117 | if (!next_ft) { |
2118 | handle = ERR_PTR(-EOPNOTSUPP); | |
2119 | goto unlock; | |
b3638e1a MG |
2120 | } |
2121 | ||
14c129e3 MG |
2122 | gen_dest = kcalloc(num_dest + 1, sizeof(*dest), |
2123 | GFP_KERNEL); | |
2124 | if (!gen_dest) { | |
2125 | handle = ERR_PTR(-ENOMEM); | |
2126 | goto unlock; | |
2127 | } | |
2128 | for (i = 0; i < num_dest; i++) | |
2129 | gen_dest[i] = dest[i]; | |
2130 | gen_dest[i].type = | |
2131 | MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; | |
2132 | gen_dest[i].ft = next_ft; | |
2133 | dest = gen_dest; | |
2134 | num_dest++; | |
9254f8ed MG |
2135 | flow_act->action &= ~(MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO | |
2136 | MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS); | |
14c129e3 | 2137 | flow_act->action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; |
cf916ffb | 2138 | handle = _mlx5_add_flow_rules(ft, spec, flow_act, dest, num_dest); |
14c129e3 MG |
2139 | if (IS_ERR(handle)) |
2140 | goto unlock; | |
2141 | ||
2142 | if (list_empty(&handle->rule[num_dest - 1]->next_ft)) { | |
2143 | mutex_lock(&next_ft->lock); | |
2144 | list_add(&handle->rule[num_dest - 1]->next_ft, | |
2145 | &next_ft->fwd_rules); | |
2146 | mutex_unlock(&next_ft->lock); | |
9254f8ed MG |
2147 | handle->rule[num_dest - 1]->sw_action = sw_action; |
2148 | handle->rule[num_dest - 1]->ft = ft; | |
b3638e1a | 2149 | } |
14c129e3 MG |
2150 | unlock: |
2151 | mutex_unlock(&root->chain_lock); | |
2152 | kfree(gen_dest); | |
74491de9 | 2153 | return handle; |
b3638e1a | 2154 | } |
74491de9 | 2155 | EXPORT_SYMBOL(mlx5_add_flow_rules); |
0c56b975 | 2156 | |
74491de9 | 2157 | void mlx5_del_flow_rules(struct mlx5_flow_handle *handle) |
0c56b975 | 2158 | { |
718ce4d6 | 2159 | struct fs_fte *fte; |
74491de9 MB |
2160 | int i; |
2161 | ||
718ce4d6 EB |
2162 | /* In order to consolidate the HW changes we lock the FTE for other |
2163 | * changes, and increase its refcount, in order not to perform the | |
2164 | * "del" functions of the FTE. Will handle them here. | |
2165 | * The removal of the rules is done under locked FTE. | |
2166 | * After removing all the handle's rules, if there are remaining | |
2167 | * rules, it means we just need to modify the FTE in FW, and | |
2168 | * unlock/decrease the refcount we increased before. | |
2169 | * Otherwise, it means the FTE should be deleted. First delete the | |
2170 | * FTE in FW. Then, unlock the FTE, and proceed the tree_put_node of | |
2171 | * the FTE, which will handle the last decrease of the refcount, as | |
2172 | * well as required handling of its parent. | |
2173 | */ | |
2174 | fs_get_obj(fte, handle->rule[0]->node.parent); | |
2175 | down_write_ref_node(&fte->node, false); | |
74491de9 | 2176 | for (i = handle->num_rules - 1; i >= 0; i--) |
718ce4d6 | 2177 | tree_remove_node(&handle->rule[i]->node, true); |
7b0c6338 | 2178 | if (list_empty(&fte->node.children)) { |
72191a4c | 2179 | fte->node.del_hw_func(&fte->node); |
cefc2355 MG |
2180 | /* Avoid double call to del_hw_fte */ |
2181 | fte->node.del_hw_func = NULL; | |
2182 | up_write_ref_node(&fte->node, false); | |
718ce4d6 | 2183 | tree_put_node(&fte->node, false); |
7b0c6338 MB |
2184 | } else if (fte->dests_size) { |
2185 | if (fte->modify_mask) | |
2186 | modify_fte(fte); | |
2187 | up_write_ref_node(&fte->node, false); | |
b645e57d MG |
2188 | } else { |
2189 | up_write_ref_node(&fte->node, false); | |
718ce4d6 | 2190 | } |
74491de9 | 2191 | kfree(handle); |
0c56b975 | 2192 | } |
74491de9 | 2193 | EXPORT_SYMBOL(mlx5_del_flow_rules); |
0c56b975 | 2194 | |
2cc43b49 MG |
2195 | /* Assuming prio->node.children(flow tables) is sorted by level */ |
2196 | static struct mlx5_flow_table *find_next_ft(struct mlx5_flow_table *ft) | |
2197 | { | |
2198 | struct fs_prio *prio; | |
2199 | ||
2200 | fs_get_obj(prio, ft->node.parent); | |
2201 | ||
2202 | if (!list_is_last(&ft->node.list, &prio->node.children)) | |
2203 | return list_next_entry(ft, node.list); | |
2204 | return find_next_chained_ft(prio); | |
2205 | } | |
2206 | ||
2207 | static int update_root_ft_destroy(struct mlx5_flow_table *ft) | |
2208 | { | |
2209 | struct mlx5_flow_root_namespace *root = find_root(&ft->node); | |
dae37456 | 2210 | struct mlx5_ft_underlay_qp *uqp; |
2cc43b49 | 2211 | struct mlx5_flow_table *new_root_ft = NULL; |
dae37456 AV |
2212 | int err = 0; |
2213 | u32 qpn; | |
2cc43b49 MG |
2214 | |
2215 | if (root->root_ft != ft) | |
2216 | return 0; | |
2217 | ||
2218 | new_root_ft = find_next_ft(ft); | |
dae37456 AV |
2219 | if (!new_root_ft) { |
2220 | root->root_ft = NULL; | |
2221 | return 0; | |
2222 | } | |
2223 | ||
2224 | if (list_empty(&root->underlay_qpns)) { | |
2225 | /* Don't set any QPN (zero) in case QPN list is empty */ | |
2226 | qpn = 0; | |
ae288a48 | 2227 | err = root->cmds->update_root_ft(root, new_root_ft, |
af76c501 | 2228 | qpn, false); |
dae37456 AV |
2229 | } else { |
2230 | list_for_each_entry(uqp, &root->underlay_qpns, list) { | |
2231 | qpn = uqp->qpn; | |
ae288a48 | 2232 | err = root->cmds->update_root_ft(root, |
af76c501 MB |
2233 | new_root_ft, qpn, |
2234 | false); | |
dae37456 AV |
2235 | if (err) |
2236 | break; | |
2cc43b49 | 2237 | } |
2cc43b49 | 2238 | } |
dae37456 AV |
2239 | |
2240 | if (err) | |
2241 | mlx5_core_warn(root->dev, | |
2242 | "Update root flow table of id(%u) qpn(%d) failed\n", | |
2243 | ft->id, qpn); | |
2244 | else | |
2245 | root->root_ft = new_root_ft; | |
2246 | ||
2cc43b49 MG |
2247 | return 0; |
2248 | } | |
2249 | ||
f90edfd2 MG |
2250 | /* Connect flow table from previous priority to |
2251 | * the next flow table. | |
2252 | */ | |
2253 | static int disconnect_flow_table(struct mlx5_flow_table *ft) | |
2254 | { | |
2255 | struct mlx5_core_dev *dev = get_dev(&ft->node); | |
2256 | struct mlx5_flow_table *next_ft; | |
2257 | struct fs_prio *prio; | |
2258 | int err = 0; | |
2259 | ||
2260 | err = update_root_ft_destroy(ft); | |
2261 | if (err) | |
2262 | return err; | |
2263 | ||
2264 | fs_get_obj(prio, ft->node.parent); | |
2265 | if (!(list_first_entry(&prio->node.children, | |
2266 | struct mlx5_flow_table, | |
2267 | node.list) == ft)) | |
2268 | return 0; | |
2269 | ||
8b54874e | 2270 | next_ft = find_next_ft(ft); |
b3638e1a MG |
2271 | err = connect_fwd_rules(dev, next_ft, ft); |
2272 | if (err) | |
2273 | return err; | |
2274 | ||
f90edfd2 MG |
2275 | err = connect_prev_fts(dev, next_ft, prio); |
2276 | if (err) | |
2277 | mlx5_core_warn(dev, "Failed to disconnect flow table %d\n", | |
2278 | ft->id); | |
2279 | return err; | |
2280 | } | |
2281 | ||
86d722ad | 2282 | int mlx5_destroy_flow_table(struct mlx5_flow_table *ft) |
0c56b975 | 2283 | { |
2cc43b49 MG |
2284 | struct mlx5_flow_root_namespace *root = find_root(&ft->node); |
2285 | int err = 0; | |
2286 | ||
2287 | mutex_lock(&root->chain_lock); | |
5281a0c9 PB |
2288 | if (!(ft->flags & MLX5_FLOW_TABLE_UNMANAGED)) |
2289 | err = disconnect_flow_table(ft); | |
2cc43b49 MG |
2290 | if (err) { |
2291 | mutex_unlock(&root->chain_lock); | |
2292 | return err; | |
2293 | } | |
476d61b7 | 2294 | if (tree_remove_node(&ft->node, false)) |
0c56b975 MG |
2295 | mlx5_core_warn(get_dev(&ft->node), "Flow table %d wasn't destroyed, refcount > 1\n", |
2296 | ft->id); | |
2cc43b49 | 2297 | mutex_unlock(&root->chain_lock); |
0c56b975 | 2298 | |
2cc43b49 | 2299 | return err; |
0c56b975 | 2300 | } |
b217ea25 | 2301 | EXPORT_SYMBOL(mlx5_destroy_flow_table); |
0c56b975 | 2302 | |
86d722ad | 2303 | void mlx5_destroy_flow_group(struct mlx5_flow_group *fg) |
0c56b975 | 2304 | { |
476d61b7 | 2305 | if (tree_remove_node(&fg->node, false)) |
0c56b975 MG |
2306 | mlx5_core_warn(get_dev(&fg->node), "Flow group %d wasn't destroyed, refcount > 1\n", |
2307 | fg->id); | |
2308 | } | |
8d2a9d8d | 2309 | EXPORT_SYMBOL(mlx5_destroy_flow_group); |
25302363 | 2310 | |
328edb49 PB |
2311 | struct mlx5_flow_namespace *mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, |
2312 | int n) | |
2313 | { | |
2314 | struct mlx5_flow_steering *steering = dev->priv.steering; | |
2315 | ||
2316 | if (!steering || !steering->fdb_sub_ns) | |
2317 | return NULL; | |
2318 | ||
2319 | return steering->fdb_sub_ns[n]; | |
2320 | } | |
2321 | EXPORT_SYMBOL(mlx5_get_fdb_sub_ns); | |
2322 | ||
4588fed7 MG |
2323 | static bool is_nic_rx_ns(enum mlx5_flow_namespace_type type) |
2324 | { | |
2325 | switch (type) { | |
2326 | case MLX5_FLOW_NAMESPACE_BYPASS: | |
15d187e2 | 2327 | case MLX5_FLOW_NAMESPACE_KERNEL_RX_MACSEC: |
4588fed7 MG |
2328 | case MLX5_FLOW_NAMESPACE_LAG: |
2329 | case MLX5_FLOW_NAMESPACE_OFFLOADS: | |
2330 | case MLX5_FLOW_NAMESPACE_ETHTOOL: | |
2331 | case MLX5_FLOW_NAMESPACE_KERNEL: | |
2332 | case MLX5_FLOW_NAMESPACE_LEFTOVERS: | |
2333 | case MLX5_FLOW_NAMESPACE_ANCHOR: | |
2334 | return true; | |
2335 | default: | |
2336 | return false; | |
2337 | } | |
2338 | } | |
2339 | ||
86d722ad MG |
2340 | struct mlx5_flow_namespace *mlx5_get_flow_namespace(struct mlx5_core_dev *dev, |
2341 | enum mlx5_flow_namespace_type type) | |
25302363 | 2342 | { |
fba53f7b MG |
2343 | struct mlx5_flow_steering *steering = dev->priv.steering; |
2344 | struct mlx5_flow_root_namespace *root_ns; | |
8ce78257 | 2345 | int prio = 0; |
78228cbd | 2346 | struct fs_prio *fs_prio; |
25302363 MG |
2347 | struct mlx5_flow_namespace *ns; |
2348 | ||
fba53f7b | 2349 | if (!steering) |
25302363 MG |
2350 | return NULL; |
2351 | ||
2352 | switch (type) { | |
25302363 | 2353 | case MLX5_FLOW_NAMESPACE_FDB: |
fba53f7b MG |
2354 | if (steering->fdb_root_ns) |
2355 | return &steering->fdb_root_ns->ns; | |
2226dcb4 | 2356 | return NULL; |
425a563a MG |
2357 | case MLX5_FLOW_NAMESPACE_PORT_SEL: |
2358 | if (steering->port_sel_root_ns) | |
2359 | return &steering->port_sel_root_ns->ns; | |
2360 | return NULL; | |
87d22483 MG |
2361 | case MLX5_FLOW_NAMESPACE_SNIFFER_RX: |
2362 | if (steering->sniffer_rx_root_ns) | |
2363 | return &steering->sniffer_rx_root_ns->ns; | |
2226dcb4 | 2364 | return NULL; |
87d22483 MG |
2365 | case MLX5_FLOW_NAMESPACE_SNIFFER_TX: |
2366 | if (steering->sniffer_tx_root_ns) | |
2367 | return &steering->sniffer_tx_root_ns->ns; | |
25302363 | 2368 | return NULL; |
c7d5fa10 MG |
2369 | case MLX5_FLOW_NAMESPACE_FDB_BYPASS: |
2370 | root_ns = steering->fdb_root_ns; | |
2371 | prio = FDB_BYPASS_PATH; | |
2372 | break; | |
4588fed7 | 2373 | case MLX5_FLOW_NAMESPACE_EGRESS: |
ee534d7f LN |
2374 | case MLX5_FLOW_NAMESPACE_EGRESS_IPSEC: |
2375 | case MLX5_FLOW_NAMESPACE_EGRESS_MACSEC: | |
8ce78257 | 2376 | root_ns = steering->egress_root_ns; |
ee92e4f1 | 2377 | prio = type - MLX5_FLOW_NAMESPACE_EGRESS; |
4588fed7 MG |
2378 | break; |
2379 | case MLX5_FLOW_NAMESPACE_RDMA_RX: | |
e6806e9a MZ |
2380 | root_ns = steering->rdma_rx_root_ns; |
2381 | prio = RDMA_RX_BYPASS_PRIO; | |
4588fed7 MG |
2382 | break; |
2383 | case MLX5_FLOW_NAMESPACE_RDMA_RX_KERNEL: | |
e6806e9a MZ |
2384 | root_ns = steering->rdma_rx_root_ns; |
2385 | prio = RDMA_RX_KERNEL_PRIO; | |
4588fed7 MG |
2386 | break; |
2387 | case MLX5_FLOW_NAMESPACE_RDMA_TX: | |
24670b1a | 2388 | root_ns = steering->rdma_tx_root_ns; |
4588fed7 MG |
2389 | break; |
2390 | case MLX5_FLOW_NAMESPACE_RDMA_RX_COUNTERS: | |
b8dfed63 AL |
2391 | root_ns = steering->rdma_rx_root_ns; |
2392 | prio = RDMA_RX_COUNTERS_PRIO; | |
4588fed7 MG |
2393 | break; |
2394 | case MLX5_FLOW_NAMESPACE_RDMA_TX_COUNTERS: | |
b8dfed63 AL |
2395 | root_ns = steering->rdma_tx_root_ns; |
2396 | prio = RDMA_TX_COUNTERS_PRIO; | |
4588fed7 | 2397 | break; |
f91ddd3a MZ |
2398 | case MLX5_FLOW_NAMESPACE_RDMA_RX_IPSEC: |
2399 | root_ns = steering->rdma_rx_root_ns; | |
2400 | prio = RDMA_RX_IPSEC_PRIO; | |
2401 | break; | |
2402 | case MLX5_FLOW_NAMESPACE_RDMA_TX_IPSEC: | |
2403 | root_ns = steering->rdma_tx_root_ns; | |
2404 | prio = RDMA_TX_IPSEC_PRIO; | |
2405 | break; | |
4588fed7 MG |
2406 | default: /* Must be NIC RX */ |
2407 | WARN_ON(!is_nic_rx_ns(type)); | |
8ce78257 MB |
2408 | root_ns = steering->root_ns; |
2409 | prio = type; | |
4588fed7 | 2410 | break; |
25302363 MG |
2411 | } |
2412 | ||
fba53f7b MG |
2413 | if (!root_ns) |
2414 | return NULL; | |
2415 | ||
25302363 MG |
2416 | fs_prio = find_prio(&root_ns->ns, prio); |
2417 | if (!fs_prio) | |
2418 | return NULL; | |
2419 | ||
2420 | ns = list_first_entry(&fs_prio->node.children, | |
2421 | typeof(*ns), | |
2422 | node.list); | |
2423 | ||
2424 | return ns; | |
2425 | } | |
b217ea25 | 2426 | EXPORT_SYMBOL(mlx5_get_flow_namespace); |
25302363 | 2427 | |
9b93ab98 GP |
2428 | struct mlx5_flow_namespace *mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev, |
2429 | enum mlx5_flow_namespace_type type, | |
2430 | int vport) | |
2431 | { | |
2432 | struct mlx5_flow_steering *steering = dev->priv.steering; | |
2433 | ||
57b92bdd | 2434 | if (!steering) |
9b93ab98 GP |
2435 | return NULL; |
2436 | ||
2437 | switch (type) { | |
2438 | case MLX5_FLOW_NAMESPACE_ESW_EGRESS: | |
57b92bdd PP |
2439 | if (vport >= steering->esw_egress_acl_vports) |
2440 | return NULL; | |
9b93ab98 GP |
2441 | if (steering->esw_egress_root_ns && |
2442 | steering->esw_egress_root_ns[vport]) | |
2443 | return &steering->esw_egress_root_ns[vport]->ns; | |
2444 | else | |
2445 | return NULL; | |
2446 | case MLX5_FLOW_NAMESPACE_ESW_INGRESS: | |
57b92bdd PP |
2447 | if (vport >= steering->esw_ingress_acl_vports) |
2448 | return NULL; | |
9b93ab98 GP |
2449 | if (steering->esw_ingress_root_ns && |
2450 | steering->esw_ingress_root_ns[vport]) | |
2451 | return &steering->esw_ingress_root_ns[vport]->ns; | |
2452 | else | |
2453 | return NULL; | |
2454 | default: | |
2455 | return NULL; | |
2456 | } | |
2457 | } | |
2458 | ||
328edb49 PB |
2459 | static struct fs_prio *_fs_create_prio(struct mlx5_flow_namespace *ns, |
2460 | unsigned int prio, | |
2461 | int num_levels, | |
2462 | enum fs_node_type type) | |
25302363 MG |
2463 | { |
2464 | struct fs_prio *fs_prio; | |
2465 | ||
2466 | fs_prio = kzalloc(sizeof(*fs_prio), GFP_KERNEL); | |
2467 | if (!fs_prio) | |
2468 | return ERR_PTR(-ENOMEM); | |
2469 | ||
328edb49 | 2470 | fs_prio->node.type = type; |
139ed6c6 | 2471 | tree_init_node(&fs_prio->node, NULL, del_sw_prio); |
25302363 | 2472 | tree_add_node(&fs_prio->node, &ns->node); |
a257b94a | 2473 | fs_prio->num_levels = num_levels; |
25302363 | 2474 | fs_prio->prio = prio; |
25302363 MG |
2475 | list_add_tail(&fs_prio->node.list, &ns->node.children); |
2476 | ||
2477 | return fs_prio; | |
2478 | } | |
2479 | ||
328edb49 PB |
2480 | static struct fs_prio *fs_create_prio_chained(struct mlx5_flow_namespace *ns, |
2481 | unsigned int prio, | |
2482 | int num_levels) | |
2483 | { | |
2484 | return _fs_create_prio(ns, prio, num_levels, FS_TYPE_PRIO_CHAINS); | |
2485 | } | |
2486 | ||
2487 | static struct fs_prio *fs_create_prio(struct mlx5_flow_namespace *ns, | |
2488 | unsigned int prio, int num_levels) | |
2489 | { | |
2490 | return _fs_create_prio(ns, prio, num_levels, FS_TYPE_PRIO); | |
2491 | } | |
2492 | ||
25302363 MG |
2493 | static struct mlx5_flow_namespace *fs_init_namespace(struct mlx5_flow_namespace |
2494 | *ns) | |
2495 | { | |
2496 | ns->node.type = FS_TYPE_NAMESPACE; | |
2497 | ||
2498 | return ns; | |
2499 | } | |
2500 | ||
f66ad830 MZ |
2501 | static struct mlx5_flow_namespace *fs_create_namespace(struct fs_prio *prio, |
2502 | int def_miss_act) | |
25302363 MG |
2503 | { |
2504 | struct mlx5_flow_namespace *ns; | |
2505 | ||
2506 | ns = kzalloc(sizeof(*ns), GFP_KERNEL); | |
2507 | if (!ns) | |
2508 | return ERR_PTR(-ENOMEM); | |
2509 | ||
2510 | fs_init_namespace(ns); | |
f66ad830 | 2511 | ns->def_miss_action = def_miss_act; |
139ed6c6 | 2512 | tree_init_node(&ns->node, NULL, del_sw_ns); |
25302363 MG |
2513 | tree_add_node(&ns->node, &prio->node); |
2514 | list_add_tail(&ns->node.list, &prio->node.children); | |
2515 | ||
2516 | return ns; | |
2517 | } | |
2518 | ||
13de6c10 MG |
2519 | static int create_leaf_prios(struct mlx5_flow_namespace *ns, int prio, |
2520 | struct init_tree_node *prio_metadata) | |
4cbdd30e MG |
2521 | { |
2522 | struct fs_prio *fs_prio; | |
2523 | int i; | |
2524 | ||
2525 | for (i = 0; i < prio_metadata->num_leaf_prios; i++) { | |
13de6c10 | 2526 | fs_prio = fs_create_prio(ns, prio++, prio_metadata->num_levels); |
4cbdd30e MG |
2527 | if (IS_ERR(fs_prio)) |
2528 | return PTR_ERR(fs_prio); | |
2529 | } | |
2530 | return 0; | |
2531 | } | |
2532 | ||
8d40d162 MG |
2533 | #define FLOW_TABLE_BIT_SZ 1 |
2534 | #define GET_FLOW_TABLE_CAP(dev, offset) \ | |
48f02eef | 2535 | ((be32_to_cpu(*((__be32 *)(dev->caps.hca[MLX5_CAP_FLOW_TABLE]->cur) + \ |
8d40d162 MG |
2536 | offset / 32)) >> \ |
2537 | (32 - FLOW_TABLE_BIT_SZ - (offset & 0x1f))) & FLOW_TABLE_BIT_SZ) | |
2538 | static bool has_required_caps(struct mlx5_core_dev *dev, struct node_caps *caps) | |
2539 | { | |
2540 | int i; | |
2541 | ||
2542 | for (i = 0; i < caps->arr_sz; i++) { | |
2543 | if (!GET_FLOW_TABLE_CAP(dev, caps->caps[i])) | |
2544 | return false; | |
2545 | } | |
2546 | return true; | |
2547 | } | |
2548 | ||
fba53f7b | 2549 | static int init_root_tree_recursive(struct mlx5_flow_steering *steering, |
8d40d162 | 2550 | struct init_tree_node *init_node, |
25302363 MG |
2551 | struct fs_node *fs_parent_node, |
2552 | struct init_tree_node *init_parent_node, | |
13de6c10 | 2553 | int prio) |
25302363 | 2554 | { |
fba53f7b | 2555 | int max_ft_level = MLX5_CAP_FLOWTABLE(steering->dev, |
8d40d162 MG |
2556 | flow_table_properties_nic_receive. |
2557 | max_ft_level); | |
25302363 MG |
2558 | struct mlx5_flow_namespace *fs_ns; |
2559 | struct fs_prio *fs_prio; | |
2560 | struct fs_node *base; | |
2561 | int i; | |
2562 | int err; | |
2563 | ||
2564 | if (init_node->type == FS_TYPE_PRIO) { | |
8d40d162 | 2565 | if ((init_node->min_ft_level > max_ft_level) || |
fba53f7b | 2566 | !has_required_caps(steering->dev, &init_node->caps)) |
8d40d162 | 2567 | return 0; |
25302363 MG |
2568 | |
2569 | fs_get_obj(fs_ns, fs_parent_node); | |
4cbdd30e | 2570 | if (init_node->num_leaf_prios) |
13de6c10 MG |
2571 | return create_leaf_prios(fs_ns, prio, init_node); |
2572 | fs_prio = fs_create_prio(fs_ns, prio, init_node->num_levels); | |
25302363 MG |
2573 | if (IS_ERR(fs_prio)) |
2574 | return PTR_ERR(fs_prio); | |
2575 | base = &fs_prio->node; | |
2576 | } else if (init_node->type == FS_TYPE_NAMESPACE) { | |
2577 | fs_get_obj(fs_prio, fs_parent_node); | |
f66ad830 | 2578 | fs_ns = fs_create_namespace(fs_prio, init_node->def_miss_action); |
25302363 MG |
2579 | if (IS_ERR(fs_ns)) |
2580 | return PTR_ERR(fs_ns); | |
2581 | base = &fs_ns->node; | |
2582 | } else { | |
2583 | return -EINVAL; | |
2584 | } | |
13de6c10 | 2585 | prio = 0; |
25302363 | 2586 | for (i = 0; i < init_node->ar_size; i++) { |
fba53f7b | 2587 | err = init_root_tree_recursive(steering, &init_node->children[i], |
13de6c10 | 2588 | base, init_node, prio); |
25302363 MG |
2589 | if (err) |
2590 | return err; | |
13de6c10 MG |
2591 | if (init_node->children[i].type == FS_TYPE_PRIO && |
2592 | init_node->children[i].num_leaf_prios) { | |
2593 | prio += init_node->children[i].num_leaf_prios; | |
2594 | } | |
25302363 MG |
2595 | } |
2596 | ||
2597 | return 0; | |
2598 | } | |
2599 | ||
fba53f7b | 2600 | static int init_root_tree(struct mlx5_flow_steering *steering, |
8d40d162 | 2601 | struct init_tree_node *init_node, |
25302363 MG |
2602 | struct fs_node *fs_parent_node) |
2603 | { | |
25302363 | 2604 | int err; |
61e9508f | 2605 | int i; |
25302363 | 2606 | |
25302363 | 2607 | for (i = 0; i < init_node->ar_size; i++) { |
fba53f7b | 2608 | err = init_root_tree_recursive(steering, &init_node->children[i], |
61e9508f | 2609 | fs_parent_node, |
25302363 MG |
2610 | init_node, i); |
2611 | if (err) | |
2612 | return err; | |
2613 | } | |
2614 | return 0; | |
2615 | } | |
2616 | ||
6eb7a268 RD |
2617 | static void del_sw_root_ns(struct fs_node *node) |
2618 | { | |
9ca41539 RD |
2619 | struct mlx5_flow_root_namespace *root_ns; |
2620 | struct mlx5_flow_namespace *ns; | |
2621 | ||
2622 | fs_get_obj(ns, node); | |
2623 | root_ns = container_of(ns, struct mlx5_flow_root_namespace, ns); | |
2624 | mutex_destroy(&root_ns->chain_lock); | |
6eb7a268 RD |
2625 | kfree(node); |
2626 | } | |
2627 | ||
af76c501 MB |
2628 | static struct mlx5_flow_root_namespace |
2629 | *create_root_ns(struct mlx5_flow_steering *steering, | |
2630 | enum fs_flow_table_type table_type) | |
25302363 | 2631 | { |
af76c501 | 2632 | const struct mlx5_flow_cmds *cmds = mlx5_fs_cmd_get_default(table_type); |
25302363 MG |
2633 | struct mlx5_flow_root_namespace *root_ns; |
2634 | struct mlx5_flow_namespace *ns; | |
2635 | ||
86d722ad | 2636 | /* Create the root namespace */ |
25fa506b | 2637 | root_ns = kzalloc(sizeof(*root_ns), GFP_KERNEL); |
25302363 MG |
2638 | if (!root_ns) |
2639 | return NULL; | |
2640 | ||
fba53f7b | 2641 | root_ns->dev = steering->dev; |
25302363 | 2642 | root_ns->table_type = table_type; |
af76c501 | 2643 | root_ns->cmds = cmds; |
25302363 | 2644 | |
dae37456 AV |
2645 | INIT_LIST_HEAD(&root_ns->underlay_qpns); |
2646 | ||
25302363 MG |
2647 | ns = &root_ns->ns; |
2648 | fs_init_namespace(ns); | |
2cc43b49 | 2649 | mutex_init(&root_ns->chain_lock); |
6eb7a268 | 2650 | tree_init_node(&ns->node, NULL, del_sw_root_ns); |
25302363 MG |
2651 | tree_add_node(&ns->node, NULL); |
2652 | ||
2653 | return root_ns; | |
2654 | } | |
2655 | ||
655227ed MG |
2656 | static void set_prio_attrs_in_prio(struct fs_prio *prio, int acc_level); |
2657 | ||
2658 | static int set_prio_attrs_in_ns(struct mlx5_flow_namespace *ns, int acc_level) | |
2659 | { | |
2660 | struct fs_prio *prio; | |
2661 | ||
2662 | fs_for_each_prio(prio, ns) { | |
a257b94a | 2663 | /* This updates prio start_level and num_levels */ |
655227ed | 2664 | set_prio_attrs_in_prio(prio, acc_level); |
a257b94a | 2665 | acc_level += prio->num_levels; |
655227ed MG |
2666 | } |
2667 | return acc_level; | |
2668 | } | |
2669 | ||
2670 | static void set_prio_attrs_in_prio(struct fs_prio *prio, int acc_level) | |
2671 | { | |
2672 | struct mlx5_flow_namespace *ns; | |
2673 | int acc_level_ns = acc_level; | |
2674 | ||
2675 | prio->start_level = acc_level; | |
34b13cb3 | 2676 | fs_for_each_ns(ns, prio) { |
a257b94a | 2677 | /* This updates start_level and num_levels of ns's priority descendants */ |
655227ed | 2678 | acc_level_ns = set_prio_attrs_in_ns(ns, acc_level); |
34b13cb3 PB |
2679 | |
2680 | /* If this a prio with chains, and we can jump from one chain | |
39c538d6 | 2681 | * (namespace) to another, so we accumulate the levels |
34b13cb3 PB |
2682 | */ |
2683 | if (prio->node.type == FS_TYPE_PRIO_CHAINS) | |
2684 | acc_level = acc_level_ns; | |
2685 | } | |
2686 | ||
a257b94a MG |
2687 | if (!prio->num_levels) |
2688 | prio->num_levels = acc_level_ns - prio->start_level; | |
2689 | WARN_ON(prio->num_levels < acc_level_ns - prio->start_level); | |
655227ed MG |
2690 | } |
2691 | ||
2692 | static void set_prio_attrs(struct mlx5_flow_root_namespace *root_ns) | |
2693 | { | |
2694 | struct mlx5_flow_namespace *ns = &root_ns->ns; | |
2695 | struct fs_prio *prio; | |
2696 | int start_level = 0; | |
2697 | ||
2698 | fs_for_each_prio(prio, ns) { | |
2699 | set_prio_attrs_in_prio(prio, start_level); | |
a257b94a | 2700 | start_level += prio->num_levels; |
655227ed MG |
2701 | } |
2702 | } | |
2703 | ||
153fefbf MG |
2704 | #define ANCHOR_PRIO 0 |
2705 | #define ANCHOR_SIZE 1 | |
d63cd286 | 2706 | #define ANCHOR_LEVEL 0 |
fba53f7b | 2707 | static int create_anchor_flow_table(struct mlx5_flow_steering *steering) |
153fefbf MG |
2708 | { |
2709 | struct mlx5_flow_namespace *ns = NULL; | |
b3ba5149 | 2710 | struct mlx5_flow_table_attr ft_attr = {}; |
153fefbf MG |
2711 | struct mlx5_flow_table *ft; |
2712 | ||
fba53f7b | 2713 | ns = mlx5_get_flow_namespace(steering->dev, MLX5_FLOW_NAMESPACE_ANCHOR); |
eff596da | 2714 | if (WARN_ON(!ns)) |
153fefbf | 2715 | return -EINVAL; |
b3ba5149 ES |
2716 | |
2717 | ft_attr.max_fte = ANCHOR_SIZE; | |
2718 | ft_attr.level = ANCHOR_LEVEL; | |
2719 | ft_attr.prio = ANCHOR_PRIO; | |
2720 | ||
2721 | ft = mlx5_create_flow_table(ns, &ft_attr); | |
153fefbf | 2722 | if (IS_ERR(ft)) { |
fba53f7b | 2723 | mlx5_core_err(steering->dev, "Failed to create last anchor flow table"); |
153fefbf MG |
2724 | return PTR_ERR(ft); |
2725 | } | |
2726 | return 0; | |
2727 | } | |
2728 | ||
fba53f7b | 2729 | static int init_root_ns(struct mlx5_flow_steering *steering) |
25302363 | 2730 | { |
9c26f5f8 TB |
2731 | int err; |
2732 | ||
fba53f7b | 2733 | steering->root_ns = create_root_ns(steering, FS_FT_NIC_RX); |
42fb18fd | 2734 | if (!steering->root_ns) |
9c26f5f8 | 2735 | return -ENOMEM; |
25302363 | 2736 | |
9c26f5f8 TB |
2737 | err = init_root_tree(steering, &root_fs, &steering->root_ns->ns.node); |
2738 | if (err) | |
2739 | goto out_err; | |
25302363 | 2740 | |
fba53f7b | 2741 | set_prio_attrs(steering->root_ns); |
9c26f5f8 TB |
2742 | err = create_anchor_flow_table(steering); |
2743 | if (err) | |
2744 | goto out_err; | |
153fefbf | 2745 | |
25302363 MG |
2746 | return 0; |
2747 | ||
9c26f5f8 TB |
2748 | out_err: |
2749 | cleanup_root_ns(steering->root_ns); | |
2750 | steering->root_ns = NULL; | |
2751 | return err; | |
25302363 MG |
2752 | } |
2753 | ||
0da2d666 | 2754 | static void clean_tree(struct fs_node *node) |
25302363 | 2755 | { |
0da2d666 MG |
2756 | if (node) { |
2757 | struct fs_node *iter; | |
2758 | struct fs_node *temp; | |
25302363 | 2759 | |
800350a3 | 2760 | tree_get_node(node); |
0da2d666 MG |
2761 | list_for_each_entry_safe(iter, temp, &node->children, list) |
2762 | clean_tree(iter); | |
476d61b7 EB |
2763 | tree_put_node(node, false); |
2764 | tree_remove_node(node, false); | |
25302363 | 2765 | } |
153fefbf MG |
2766 | } |
2767 | ||
0da2d666 | 2768 | static void cleanup_root_ns(struct mlx5_flow_root_namespace *root_ns) |
25302363 | 2769 | { |
25302363 MG |
2770 | if (!root_ns) |
2771 | return; | |
2772 | ||
0da2d666 | 2773 | clean_tree(&root_ns->ns.node); |
25302363 MG |
2774 | } |
2775 | ||
87d22483 MG |
2776 | static int init_sniffer_tx_root_ns(struct mlx5_flow_steering *steering) |
2777 | { | |
2778 | struct fs_prio *prio; | |
2779 | ||
2780 | steering->sniffer_tx_root_ns = create_root_ns(steering, FS_FT_SNIFFER_TX); | |
2781 | if (!steering->sniffer_tx_root_ns) | |
2782 | return -ENOMEM; | |
2783 | ||
2784 | /* Create single prio */ | |
2785 | prio = fs_create_prio(&steering->sniffer_tx_root_ns->ns, 0, 1); | |
905f6bd3 | 2786 | return PTR_ERR_OR_ZERO(prio); |
87d22483 MG |
2787 | } |
2788 | ||
2789 | static int init_sniffer_rx_root_ns(struct mlx5_flow_steering *steering) | |
2790 | { | |
2791 | struct fs_prio *prio; | |
2792 | ||
2793 | steering->sniffer_rx_root_ns = create_root_ns(steering, FS_FT_SNIFFER_RX); | |
2794 | if (!steering->sniffer_rx_root_ns) | |
2795 | return -ENOMEM; | |
2796 | ||
2797 | /* Create single prio */ | |
2798 | prio = fs_create_prio(&steering->sniffer_rx_root_ns->ns, 0, 1); | |
905f6bd3 | 2799 | return PTR_ERR_OR_ZERO(prio); |
87d22483 MG |
2800 | } |
2801 | ||
425a563a MG |
2802 | #define PORT_SEL_NUM_LEVELS 3 |
2803 | static int init_port_sel_root_ns(struct mlx5_flow_steering *steering) | |
2804 | { | |
2805 | struct fs_prio *prio; | |
2806 | ||
2807 | steering->port_sel_root_ns = create_root_ns(steering, FS_FT_PORT_SEL); | |
2808 | if (!steering->port_sel_root_ns) | |
2809 | return -ENOMEM; | |
2810 | ||
2811 | /* Create single prio */ | |
2812 | prio = fs_create_prio(&steering->port_sel_root_ns->ns, 0, | |
2813 | PORT_SEL_NUM_LEVELS); | |
2814 | return PTR_ERR_OR_ZERO(prio); | |
2815 | } | |
2816 | ||
d83eb50e MG |
2817 | static int init_rdma_rx_root_ns(struct mlx5_flow_steering *steering) |
2818 | { | |
e6806e9a | 2819 | int err; |
d83eb50e MG |
2820 | |
2821 | steering->rdma_rx_root_ns = create_root_ns(steering, FS_FT_RDMA_RX); | |
2822 | if (!steering->rdma_rx_root_ns) | |
2823 | return -ENOMEM; | |
2824 | ||
e6806e9a MZ |
2825 | err = init_root_tree(steering, &rdma_rx_root_fs, |
2826 | &steering->rdma_rx_root_ns->ns.node); | |
2827 | if (err) | |
2828 | goto out_err; | |
f6f7d6b5 | 2829 | |
e6806e9a MZ |
2830 | set_prio_attrs(steering->rdma_rx_root_ns); |
2831 | ||
2832 | return 0; | |
2833 | ||
2834 | out_err: | |
2835 | cleanup_root_ns(steering->rdma_rx_root_ns); | |
2836 | steering->rdma_rx_root_ns = NULL; | |
2837 | return err; | |
d83eb50e | 2838 | } |
439e843f | 2839 | |
24670b1a MG |
2840 | static int init_rdma_tx_root_ns(struct mlx5_flow_steering *steering) |
2841 | { | |
2842 | int err; | |
2843 | ||
2844 | steering->rdma_tx_root_ns = create_root_ns(steering, FS_FT_RDMA_TX); | |
2845 | if (!steering->rdma_tx_root_ns) | |
2846 | return -ENOMEM; | |
2847 | ||
2848 | err = init_root_tree(steering, &rdma_tx_root_fs, | |
2849 | &steering->rdma_tx_root_ns->ns.node); | |
2850 | if (err) | |
2851 | goto out_err; | |
2852 | ||
2853 | set_prio_attrs(steering->rdma_tx_root_ns); | |
2854 | ||
2855 | return 0; | |
2856 | ||
2857 | out_err: | |
2858 | cleanup_root_ns(steering->rdma_tx_root_ns); | |
2859 | steering->rdma_tx_root_ns = NULL; | |
2860 | return err; | |
2861 | } | |
2862 | ||
439e843f PB |
2863 | /* FT and tc chains are stored in the same array so we can re-use the |
2864 | * mlx5_get_fdb_sub_ns() and tc api for FT chains. | |
2865 | * When creating a new ns for each chain store it in the first available slot. | |
2866 | * Assume tc chains are created and stored first and only then the FT chain. | |
2867 | */ | |
2868 | static void store_fdb_sub_ns_prio_chain(struct mlx5_flow_steering *steering, | |
2869 | struct mlx5_flow_namespace *ns) | |
2870 | { | |
2871 | int chain = 0; | |
2872 | ||
2873 | while (steering->fdb_sub_ns[chain]) | |
2874 | ++chain; | |
2875 | ||
2876 | steering->fdb_sub_ns[chain] = ns; | |
2877 | } | |
2878 | ||
2879 | static int create_fdb_sub_ns_prio_chain(struct mlx5_flow_steering *steering, | |
2880 | struct fs_prio *maj_prio) | |
25302363 | 2881 | { |
328edb49 | 2882 | struct mlx5_flow_namespace *ns; |
328edb49 | 2883 | struct fs_prio *min_prio; |
439e843f PB |
2884 | int prio; |
2885 | ||
2886 | ns = fs_create_namespace(maj_prio, MLX5_FLOW_TABLE_MISS_ACTION_DEF); | |
2887 | if (IS_ERR(ns)) | |
2888 | return PTR_ERR(ns); | |
2889 | ||
2890 | for (prio = 0; prio < FDB_TC_MAX_PRIO; prio++) { | |
2891 | min_prio = fs_create_prio(ns, prio, FDB_TC_LEVELS_PER_PRIO); | |
2892 | if (IS_ERR(min_prio)) | |
2893 | return PTR_ERR(min_prio); | |
2894 | } | |
2895 | ||
2896 | store_fdb_sub_ns_prio_chain(steering, ns); | |
2897 | ||
2898 | return 0; | |
2899 | } | |
2900 | ||
2901 | static int create_fdb_chains(struct mlx5_flow_steering *steering, | |
2902 | int fs_prio, | |
2903 | int chains) | |
2904 | { | |
2905 | struct fs_prio *maj_prio; | |
328edb49 PB |
2906 | int levels; |
2907 | int chain; | |
328edb49 | 2908 | int err; |
25302363 | 2909 | |
439e843f PB |
2910 | levels = FDB_TC_LEVELS_PER_PRIO * FDB_TC_MAX_PRIO * chains; |
2911 | maj_prio = fs_create_prio_chained(&steering->fdb_root_ns->ns, | |
2912 | fs_prio, | |
2913 | levels); | |
2914 | if (IS_ERR(maj_prio)) | |
2915 | return PTR_ERR(maj_prio); | |
2916 | ||
2917 | for (chain = 0; chain < chains; chain++) { | |
2918 | err = create_fdb_sub_ns_prio_chain(steering, maj_prio); | |
2919 | if (err) | |
2920 | return err; | |
2921 | } | |
2922 | ||
2923 | return 0; | |
2924 | } | |
25302363 | 2925 | |
439e843f PB |
2926 | static int create_fdb_fast_path(struct mlx5_flow_steering *steering) |
2927 | { | |
439e843f PB |
2928 | int err; |
2929 | ||
975b992f | 2930 | steering->fdb_sub_ns = kcalloc(FDB_NUM_CHAINS, |
439e843f PB |
2931 | sizeof(*steering->fdb_sub_ns), |
2932 | GFP_KERNEL); | |
328edb49 PB |
2933 | if (!steering->fdb_sub_ns) |
2934 | return -ENOMEM; | |
2935 | ||
975b992f PB |
2936 | err = create_fdb_chains(steering, FDB_TC_OFFLOAD, FDB_TC_MAX_CHAIN + 1); |
2937 | if (err) | |
2938 | return err; | |
2939 | ||
2940 | err = create_fdb_chains(steering, FDB_FT_OFFLOAD, 1); | |
439e843f PB |
2941 | if (err) |
2942 | return err; | |
2943 | ||
2944 | return 0; | |
2945 | } | |
2946 | ||
c7d5fa10 MG |
2947 | static int create_fdb_bypass(struct mlx5_flow_steering *steering) |
2948 | { | |
2949 | struct mlx5_flow_namespace *ns; | |
2950 | struct fs_prio *prio; | |
2951 | int i; | |
2952 | ||
2953 | prio = fs_create_prio(&steering->fdb_root_ns->ns, FDB_BYPASS_PATH, 0); | |
2954 | if (IS_ERR(prio)) | |
2955 | return PTR_ERR(prio); | |
2956 | ||
2957 | ns = fs_create_namespace(prio, MLX5_FLOW_TABLE_MISS_ACTION_DEF); | |
2958 | if (IS_ERR(ns)) | |
2959 | return PTR_ERR(ns); | |
2960 | ||
2961 | for (i = 0; i < MLX5_BY_PASS_NUM_REGULAR_PRIOS; i++) { | |
2962 | prio = fs_create_prio(ns, i, 1); | |
2963 | if (IS_ERR(prio)) | |
2964 | return PTR_ERR(prio); | |
2965 | } | |
2966 | return 0; | |
2967 | } | |
2968 | ||
684f062c SD |
2969 | static void cleanup_fdb_root_ns(struct mlx5_flow_steering *steering) |
2970 | { | |
2971 | cleanup_root_ns(steering->fdb_root_ns); | |
2972 | steering->fdb_root_ns = NULL; | |
2973 | kfree(steering->fdb_sub_ns); | |
2974 | steering->fdb_sub_ns = NULL; | |
2975 | } | |
2976 | ||
439e843f PB |
2977 | static int init_fdb_root_ns(struct mlx5_flow_steering *steering) |
2978 | { | |
2979 | struct fs_prio *maj_prio; | |
2980 | int err; | |
2981 | ||
2982 | steering->fdb_root_ns = create_root_ns(steering, FS_FT_FDB); | |
2983 | if (!steering->fdb_root_ns) | |
2984 | return -ENOMEM; | |
2985 | ||
c7d5fa10 MG |
2986 | err = create_fdb_bypass(steering); |
2987 | if (err) | |
d9cb0675 | 2988 | goto out_err; |
c7d5fa10 | 2989 | |
439e843f PB |
2990 | err = create_fdb_fast_path(steering); |
2991 | if (err) | |
1033665e | 2992 | goto out_err; |
328edb49 | 2993 | |
ec3be887 VB |
2994 | maj_prio = fs_create_prio(&steering->fdb_root_ns->ns, FDB_TC_MISS, 1); |
2995 | if (IS_ERR(maj_prio)) { | |
2996 | err = PTR_ERR(maj_prio); | |
2997 | goto out_err; | |
2998 | } | |
2999 | ||
272ecfc9 | 3000 | maj_prio = fs_create_prio(&steering->fdb_root_ns->ns, FDB_BR_OFFLOAD, 4); |
19e9bfa0 VB |
3001 | if (IS_ERR(maj_prio)) { |
3002 | err = PTR_ERR(maj_prio); | |
3003 | goto out_err; | |
3004 | } | |
3005 | ||
b6d9ccb1 | 3006 | maj_prio = fs_create_prio(&steering->fdb_root_ns->ns, FDB_SLOW_PATH, 1); |
328edb49 PB |
3007 | if (IS_ERR(maj_prio)) { |
3008 | err = PTR_ERR(maj_prio); | |
1033665e | 3009 | goto out_err; |
328edb49 | 3010 | } |
1033665e | 3011 | |
96e32687 EC |
3012 | /* We put this priority last, knowing that nothing will get here |
3013 | * unless explicitly forwarded to. This is possible because the | |
3014 | * slow path tables have catch all rules and nothing gets passed | |
3015 | * those tables. | |
3016 | */ | |
3017 | maj_prio = fs_create_prio(&steering->fdb_root_ns->ns, FDB_PER_VPORT, 1); | |
3018 | if (IS_ERR(maj_prio)) { | |
3019 | err = PTR_ERR(maj_prio); | |
3020 | goto out_err; | |
3021 | } | |
3022 | ||
1033665e OG |
3023 | set_prio_attrs(steering->fdb_root_ns); |
3024 | return 0; | |
3025 | ||
3026 | out_err: | |
684f062c | 3027 | cleanup_fdb_root_ns(steering); |
328edb49 | 3028 | return err; |
25302363 MG |
3029 | } |
3030 | ||
9b93ab98 | 3031 | static int init_egress_acl_root_ns(struct mlx5_flow_steering *steering, int vport) |
efdc810b MHY |
3032 | { |
3033 | struct fs_prio *prio; | |
3034 | ||
9b93ab98 GP |
3035 | steering->esw_egress_root_ns[vport] = create_root_ns(steering, FS_FT_ESW_EGRESS_ACL); |
3036 | if (!steering->esw_egress_root_ns[vport]) | |
efdc810b MHY |
3037 | return -ENOMEM; |
3038 | ||
3039 | /* create 1 prio*/ | |
9b93ab98 | 3040 | prio = fs_create_prio(&steering->esw_egress_root_ns[vport]->ns, 0, 1); |
44fafdaa | 3041 | return PTR_ERR_OR_ZERO(prio); |
efdc810b MHY |
3042 | } |
3043 | ||
9b93ab98 | 3044 | static int init_ingress_acl_root_ns(struct mlx5_flow_steering *steering, int vport) |
efdc810b MHY |
3045 | { |
3046 | struct fs_prio *prio; | |
3047 | ||
9b93ab98 GP |
3048 | steering->esw_ingress_root_ns[vport] = create_root_ns(steering, FS_FT_ESW_INGRESS_ACL); |
3049 | if (!steering->esw_ingress_root_ns[vport]) | |
efdc810b MHY |
3050 | return -ENOMEM; |
3051 | ||
3052 | /* create 1 prio*/ | |
9b93ab98 | 3053 | prio = fs_create_prio(&steering->esw_ingress_root_ns[vport]->ns, 0, 1); |
44fafdaa | 3054 | return PTR_ERR_OR_ZERO(prio); |
efdc810b MHY |
3055 | } |
3056 | ||
57b92bdd | 3057 | int mlx5_fs_egress_acls_init(struct mlx5_core_dev *dev, int total_vports) |
9b93ab98 GP |
3058 | { |
3059 | struct mlx5_flow_steering *steering = dev->priv.steering; | |
3060 | int err; | |
3061 | int i; | |
3062 | ||
2752b823 PP |
3063 | steering->esw_egress_root_ns = |
3064 | kcalloc(total_vports, | |
3065 | sizeof(*steering->esw_egress_root_ns), | |
3066 | GFP_KERNEL); | |
9b93ab98 GP |
3067 | if (!steering->esw_egress_root_ns) |
3068 | return -ENOMEM; | |
3069 | ||
2752b823 | 3070 | for (i = 0; i < total_vports; i++) { |
9b93ab98 GP |
3071 | err = init_egress_acl_root_ns(steering, i); |
3072 | if (err) | |
3073 | goto cleanup_root_ns; | |
3074 | } | |
57b92bdd | 3075 | steering->esw_egress_acl_vports = total_vports; |
9b93ab98 GP |
3076 | return 0; |
3077 | ||
3078 | cleanup_root_ns: | |
3079 | for (i--; i >= 0; i--) | |
3080 | cleanup_root_ns(steering->esw_egress_root_ns[i]); | |
3081 | kfree(steering->esw_egress_root_ns); | |
9414277a | 3082 | steering->esw_egress_root_ns = NULL; |
9b93ab98 GP |
3083 | return err; |
3084 | } | |
3085 | ||
57b92bdd PP |
3086 | void mlx5_fs_egress_acls_cleanup(struct mlx5_core_dev *dev) |
3087 | { | |
3088 | struct mlx5_flow_steering *steering = dev->priv.steering; | |
3089 | int i; | |
3090 | ||
3091 | if (!steering->esw_egress_root_ns) | |
3092 | return; | |
3093 | ||
3094 | for (i = 0; i < steering->esw_egress_acl_vports; i++) | |
3095 | cleanup_root_ns(steering->esw_egress_root_ns[i]); | |
3096 | ||
3097 | kfree(steering->esw_egress_root_ns); | |
3098 | steering->esw_egress_root_ns = NULL; | |
3099 | } | |
3100 | ||
3101 | int mlx5_fs_ingress_acls_init(struct mlx5_core_dev *dev, int total_vports) | |
9b93ab98 GP |
3102 | { |
3103 | struct mlx5_flow_steering *steering = dev->priv.steering; | |
3104 | int err; | |
3105 | int i; | |
3106 | ||
2752b823 PP |
3107 | steering->esw_ingress_root_ns = |
3108 | kcalloc(total_vports, | |
3109 | sizeof(*steering->esw_ingress_root_ns), | |
3110 | GFP_KERNEL); | |
9b93ab98 GP |
3111 | if (!steering->esw_ingress_root_ns) |
3112 | return -ENOMEM; | |
3113 | ||
2752b823 | 3114 | for (i = 0; i < total_vports; i++) { |
9b93ab98 GP |
3115 | err = init_ingress_acl_root_ns(steering, i); |
3116 | if (err) | |
3117 | goto cleanup_root_ns; | |
3118 | } | |
57b92bdd | 3119 | steering->esw_ingress_acl_vports = total_vports; |
9b93ab98 GP |
3120 | return 0; |
3121 | ||
3122 | cleanup_root_ns: | |
3123 | for (i--; i >= 0; i--) | |
3124 | cleanup_root_ns(steering->esw_ingress_root_ns[i]); | |
3125 | kfree(steering->esw_ingress_root_ns); | |
9414277a | 3126 | steering->esw_ingress_root_ns = NULL; |
9b93ab98 GP |
3127 | return err; |
3128 | } | |
3129 | ||
57b92bdd PP |
3130 | void mlx5_fs_ingress_acls_cleanup(struct mlx5_core_dev *dev) |
3131 | { | |
3132 | struct mlx5_flow_steering *steering = dev->priv.steering; | |
3133 | int i; | |
3134 | ||
3135 | if (!steering->esw_ingress_root_ns) | |
3136 | return; | |
3137 | ||
3138 | for (i = 0; i < steering->esw_ingress_acl_vports; i++) | |
3139 | cleanup_root_ns(steering->esw_ingress_root_ns[i]); | |
3140 | ||
3141 | kfree(steering->esw_ingress_root_ns); | |
3142 | steering->esw_ingress_root_ns = NULL; | |
3143 | } | |
3144 | ||
8348b71c DC |
3145 | u32 mlx5_fs_get_capabilities(struct mlx5_core_dev *dev, enum mlx5_flow_namespace_type type) |
3146 | { | |
3147 | struct mlx5_flow_root_namespace *root; | |
3148 | struct mlx5_flow_namespace *ns; | |
3149 | ||
3150 | ns = mlx5_get_flow_namespace(dev, type); | |
3151 | if (!ns) | |
3152 | return 0; | |
3153 | ||
3154 | root = find_root(&ns->node); | |
3155 | if (!root) | |
3156 | return 0; | |
3157 | ||
3158 | return root->cmds->get_capabilities(root, root->table_type); | |
3159 | } | |
3160 | ||
5f418378 AY |
3161 | static int init_egress_root_ns(struct mlx5_flow_steering *steering) |
3162 | { | |
8ce78257 | 3163 | int err; |
5f418378 AY |
3164 | |
3165 | steering->egress_root_ns = create_root_ns(steering, | |
3166 | FS_FT_NIC_TX); | |
3167 | if (!steering->egress_root_ns) | |
3168 | return -ENOMEM; | |
3169 | ||
8ce78257 MB |
3170 | err = init_root_tree(steering, &egress_root_fs, |
3171 | &steering->egress_root_ns->ns.node); | |
3172 | if (err) | |
3173 | goto cleanup; | |
3174 | set_prio_attrs(steering->egress_root_ns); | |
3175 | return 0; | |
3176 | cleanup: | |
3177 | cleanup_root_ns(steering->egress_root_ns); | |
3178 | steering->egress_root_ns = NULL; | |
3179 | return err; | |
5f418378 AY |
3180 | } |
3181 | ||
db492c1e JP |
3182 | static int mlx5_fs_mode_validate(struct devlink *devlink, u32 id, |
3183 | union devlink_param_value val, | |
3184 | struct netlink_ext_ack *extack) | |
3185 | { | |
3186 | struct mlx5_core_dev *dev = devlink_priv(devlink); | |
3187 | char *value = val.vstr; | |
3188 | int err = 0; | |
3189 | ||
3190 | if (!strcmp(value, "dmfs")) { | |
3191 | return 0; | |
3192 | } else if (!strcmp(value, "smfs")) { | |
3193 | u8 eswitch_mode; | |
3194 | bool smfs_cap; | |
3195 | ||
3196 | eswitch_mode = mlx5_eswitch_mode(dev); | |
3197 | smfs_cap = mlx5_fs_dr_is_supported(dev); | |
3198 | ||
3199 | if (!smfs_cap) { | |
3200 | err = -EOPNOTSUPP; | |
3201 | NL_SET_ERR_MSG_MOD(extack, | |
3202 | "Software managed steering is not supported by current device"); | |
3203 | } | |
3204 | ||
3205 | else if (eswitch_mode == MLX5_ESWITCH_OFFLOADS) { | |
3206 | NL_SET_ERR_MSG_MOD(extack, | |
3207 | "Software managed steering is not supported when eswitch offloads enabled."); | |
3208 | err = -EOPNOTSUPP; | |
3209 | } | |
3210 | } else { | |
3211 | NL_SET_ERR_MSG_MOD(extack, | |
3212 | "Bad parameter: supported values are [\"dmfs\", \"smfs\"]"); | |
3213 | err = -EINVAL; | |
3214 | } | |
3215 | ||
3216 | return err; | |
3217 | } | |
3218 | ||
3219 | static int mlx5_fs_mode_set(struct devlink *devlink, u32 id, | |
3220 | struct devlink_param_gset_ctx *ctx) | |
3221 | { | |
3222 | struct mlx5_core_dev *dev = devlink_priv(devlink); | |
3223 | enum mlx5_flow_steering_mode mode; | |
3224 | ||
3225 | if (!strcmp(ctx->val.vstr, "smfs")) | |
3226 | mode = MLX5_FLOW_STEERING_MODE_SMFS; | |
3227 | else | |
3228 | mode = MLX5_FLOW_STEERING_MODE_DMFS; | |
3229 | dev->priv.steering->mode = mode; | |
3230 | ||
3231 | return 0; | |
3232 | } | |
3233 | ||
3234 | static int mlx5_fs_mode_get(struct devlink *devlink, u32 id, | |
3235 | struct devlink_param_gset_ctx *ctx) | |
3236 | { | |
3237 | struct mlx5_core_dev *dev = devlink_priv(devlink); | |
3238 | ||
3239 | if (dev->priv.steering->mode == MLX5_FLOW_STEERING_MODE_SMFS) | |
3240 | strcpy(ctx->val.vstr, "smfs"); | |
3241 | else | |
3242 | strcpy(ctx->val.vstr, "dmfs"); | |
3243 | return 0; | |
3244 | } | |
3245 | ||
3246 | static const struct devlink_param mlx5_fs_params[] = { | |
3247 | DEVLINK_PARAM_DRIVER(MLX5_DEVLINK_PARAM_ID_FLOW_STEERING_MODE, | |
3248 | "flow_steering_mode", DEVLINK_PARAM_TYPE_STRING, | |
3249 | BIT(DEVLINK_PARAM_CMODE_RUNTIME), | |
3250 | mlx5_fs_mode_get, mlx5_fs_mode_set, | |
3251 | mlx5_fs_mode_validate), | |
3252 | }; | |
3253 | ||
b3388697 | 3254 | void mlx5_fs_core_cleanup(struct mlx5_core_dev *dev) |
25302363 | 3255 | { |
b3388697 | 3256 | struct mlx5_flow_steering *steering = dev->priv.steering; |
fba53f7b | 3257 | |
b3388697 | 3258 | cleanup_root_ns(steering->root_ns); |
684f062c | 3259 | cleanup_fdb_root_ns(steering); |
b3388697 SD |
3260 | cleanup_root_ns(steering->port_sel_root_ns); |
3261 | cleanup_root_ns(steering->sniffer_rx_root_ns); | |
3262 | cleanup_root_ns(steering->sniffer_tx_root_ns); | |
3263 | cleanup_root_ns(steering->rdma_rx_root_ns); | |
3264 | cleanup_root_ns(steering->rdma_tx_root_ns); | |
3265 | cleanup_root_ns(steering->egress_root_ns); | |
db492c1e JP |
3266 | |
3267 | devl_params_unregister(priv_to_devlink(dev), mlx5_fs_params, | |
3268 | ARRAY_SIZE(mlx5_fs_params)); | |
b3388697 | 3269 | } |
aa36c948 | 3270 | |
b3388697 SD |
3271 | int mlx5_fs_core_init(struct mlx5_core_dev *dev) |
3272 | { | |
3273 | struct mlx5_flow_steering *steering = dev->priv.steering; | |
db492c1e JP |
3274 | int err; |
3275 | ||
3276 | err = devl_params_register(priv_to_devlink(dev), mlx5_fs_params, | |
3277 | ARRAY_SIZE(mlx5_fs_params)); | |
3278 | if (err) | |
3279 | return err; | |
a369d4ac | 3280 | |
ffdb8827 ES |
3281 | if ((((MLX5_CAP_GEN(dev, port_type) == MLX5_CAP_PORT_TYPE_ETH) && |
3282 | (MLX5_CAP_GEN(dev, nic_flow_table))) || | |
3283 | ((MLX5_CAP_GEN(dev, port_type) == MLX5_CAP_PORT_TYPE_IB) && | |
3284 | MLX5_CAP_GEN(dev, ipoib_enhanced_offloads))) && | |
876d634d | 3285 | MLX5_CAP_FLOWTABLE_NIC_RX(dev, ft_support)) { |
fba53f7b | 3286 | err = init_root_ns(steering); |
25302363 | 3287 | if (err) |
43a335e0 | 3288 | goto err; |
25302363 | 3289 | } |
876d634d | 3290 | |
0efc8562 | 3291 | if (MLX5_ESWITCH_MANAGER(dev)) { |
bd02ef8e | 3292 | if (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, ft_support)) { |
fba53f7b | 3293 | err = init_fdb_root_ns(steering); |
bd02ef8e MG |
3294 | if (err) |
3295 | goto err; | |
3296 | } | |
25302363 MG |
3297 | } |
3298 | ||
87d22483 MG |
3299 | if (MLX5_CAP_FLOWTABLE_SNIFFER_RX(dev, ft_support)) { |
3300 | err = init_sniffer_rx_root_ns(steering); | |
3301 | if (err) | |
3302 | goto err; | |
3303 | } | |
3304 | ||
3305 | if (MLX5_CAP_FLOWTABLE_SNIFFER_TX(dev, ft_support)) { | |
3306 | err = init_sniffer_tx_root_ns(steering); | |
3307 | if (err) | |
3308 | goto err; | |
3309 | } | |
3310 | ||
425a563a MG |
3311 | if (MLX5_CAP_FLOWTABLE_PORT_SELECTION(dev, ft_support)) { |
3312 | err = init_port_sel_root_ns(steering); | |
3313 | if (err) | |
3314 | goto err; | |
3315 | } | |
3316 | ||
f6f7d6b5 MG |
3317 | if (MLX5_CAP_FLOWTABLE_RDMA_RX(dev, ft_support) && |
3318 | MLX5_CAP_FLOWTABLE_RDMA_RX(dev, table_miss_action_domain)) { | |
d83eb50e MG |
3319 | err = init_rdma_rx_root_ns(steering); |
3320 | if (err) | |
3321 | goto err; | |
3322 | } | |
3323 | ||
24670b1a MG |
3324 | if (MLX5_CAP_FLOWTABLE_RDMA_TX(dev, ft_support)) { |
3325 | err = init_rdma_tx_root_ns(steering); | |
3326 | if (err) | |
3327 | goto err; | |
3328 | } | |
3329 | ||
2fa33b35 | 3330 | if (MLX5_CAP_FLOWTABLE_NIC_TX(dev, ft_support)) { |
5f418378 AY |
3331 | err = init_egress_root_ns(steering); |
3332 | if (err) | |
3333 | goto err; | |
3334 | } | |
3335 | ||
efdc810b | 3336 | return 0; |
b3388697 SD |
3337 | |
3338 | err: | |
3339 | mlx5_fs_core_cleanup(dev); | |
3340 | return err; | |
3341 | } | |
3342 | ||
3343 | void mlx5_fs_core_free(struct mlx5_core_dev *dev) | |
3344 | { | |
3345 | struct mlx5_flow_steering *steering = dev->priv.steering; | |
3346 | ||
3347 | kmem_cache_destroy(steering->ftes_cache); | |
3348 | kmem_cache_destroy(steering->fgs_cache); | |
3349 | kfree(steering); | |
3350 | mlx5_ft_pool_destroy(dev); | |
3351 | mlx5_cleanup_fc_stats(dev); | |
3352 | } | |
3353 | ||
3354 | int mlx5_fs_core_alloc(struct mlx5_core_dev *dev) | |
3355 | { | |
3356 | struct mlx5_flow_steering *steering; | |
3357 | int err = 0; | |
3358 | ||
3359 | err = mlx5_init_fc_stats(dev); | |
3360 | if (err) | |
3361 | return err; | |
3362 | ||
3363 | err = mlx5_ft_pool_init(dev); | |
3364 | if (err) | |
3365 | goto err; | |
3366 | ||
3367 | steering = kzalloc(sizeof(*steering), GFP_KERNEL); | |
3368 | if (!steering) { | |
3369 | err = -ENOMEM; | |
3370 | goto err; | |
3371 | } | |
3372 | ||
3373 | steering->dev = dev; | |
3374 | dev->priv.steering = steering; | |
3375 | ||
3376 | if (mlx5_fs_dr_is_supported(dev)) | |
3377 | steering->mode = MLX5_FLOW_STEERING_MODE_SMFS; | |
3378 | else | |
3379 | steering->mode = MLX5_FLOW_STEERING_MODE_DMFS; | |
3380 | ||
3381 | steering->fgs_cache = kmem_cache_create("mlx5_fs_fgs", | |
3382 | sizeof(struct mlx5_flow_group), 0, | |
3383 | 0, NULL); | |
3384 | steering->ftes_cache = kmem_cache_create("mlx5_fs_ftes", sizeof(struct fs_fte), 0, | |
3385 | 0, NULL); | |
3386 | if (!steering->ftes_cache || !steering->fgs_cache) { | |
3387 | err = -ENOMEM; | |
3388 | goto err; | |
3389 | } | |
3390 | ||
3391 | return 0; | |
3392 | ||
efdc810b | 3393 | err: |
b3388697 | 3394 | mlx5_fs_core_free(dev); |
25302363 MG |
3395 | return err; |
3396 | } | |
50854114 YH |
3397 | |
3398 | int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn) | |
3399 | { | |
3400 | struct mlx5_flow_root_namespace *root = dev->priv.steering->root_ns; | |
dae37456 AV |
3401 | struct mlx5_ft_underlay_qp *new_uqp; |
3402 | int err = 0; | |
3403 | ||
3404 | new_uqp = kzalloc(sizeof(*new_uqp), GFP_KERNEL); | |
3405 | if (!new_uqp) | |
3406 | return -ENOMEM; | |
3407 | ||
3408 | mutex_lock(&root->chain_lock); | |
3409 | ||
3410 | if (!root->root_ft) { | |
3411 | err = -EINVAL; | |
3412 | goto update_ft_fail; | |
3413 | } | |
3414 | ||
ae288a48 | 3415 | err = root->cmds->update_root_ft(root, root->root_ft, underlay_qpn, |
af76c501 | 3416 | false); |
dae37456 AV |
3417 | if (err) { |
3418 | mlx5_core_warn(dev, "Failed adding underlay QPN (%u) to root FT err(%d)\n", | |
3419 | underlay_qpn, err); | |
3420 | goto update_ft_fail; | |
3421 | } | |
3422 | ||
3423 | new_uqp->qpn = underlay_qpn; | |
3424 | list_add_tail(&new_uqp->list, &root->underlay_qpns); | |
3425 | ||
3426 | mutex_unlock(&root->chain_lock); | |
50854114 | 3427 | |
50854114 | 3428 | return 0; |
dae37456 AV |
3429 | |
3430 | update_ft_fail: | |
3431 | mutex_unlock(&root->chain_lock); | |
3432 | kfree(new_uqp); | |
3433 | return err; | |
50854114 YH |
3434 | } |
3435 | EXPORT_SYMBOL(mlx5_fs_add_rx_underlay_qpn); | |
3436 | ||
3437 | int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn) | |
3438 | { | |
3439 | struct mlx5_flow_root_namespace *root = dev->priv.steering->root_ns; | |
dae37456 AV |
3440 | struct mlx5_ft_underlay_qp *uqp; |
3441 | bool found = false; | |
3442 | int err = 0; | |
3443 | ||
3444 | mutex_lock(&root->chain_lock); | |
3445 | list_for_each_entry(uqp, &root->underlay_qpns, list) { | |
3446 | if (uqp->qpn == underlay_qpn) { | |
3447 | found = true; | |
3448 | break; | |
3449 | } | |
3450 | } | |
3451 | ||
3452 | if (!found) { | |
3453 | mlx5_core_warn(dev, "Failed finding underlay qp (%u) in qpn list\n", | |
3454 | underlay_qpn); | |
3455 | err = -EINVAL; | |
3456 | goto out; | |
3457 | } | |
3458 | ||
ae288a48 | 3459 | err = root->cmds->update_root_ft(root, root->root_ft, underlay_qpn, |
af76c501 | 3460 | true); |
dae37456 AV |
3461 | if (err) |
3462 | mlx5_core_warn(dev, "Failed removing underlay QPN (%u) from root FT err(%d)\n", | |
3463 | underlay_qpn, err); | |
3464 | ||
3465 | list_del(&uqp->list); | |
3466 | mutex_unlock(&root->chain_lock); | |
3467 | kfree(uqp); | |
50854114 | 3468 | |
50854114 | 3469 | return 0; |
dae37456 AV |
3470 | |
3471 | out: | |
3472 | mutex_unlock(&root->chain_lock); | |
3473 | return err; | |
50854114 YH |
3474 | } |
3475 | EXPORT_SYMBOL(mlx5_fs_remove_rx_underlay_qpn); | |
2b688ea5 MG |
3476 | |
3477 | static struct mlx5_flow_root_namespace | |
3478 | *get_root_namespace(struct mlx5_core_dev *dev, enum mlx5_flow_namespace_type ns_type) | |
3479 | { | |
3480 | struct mlx5_flow_namespace *ns; | |
3481 | ||
3482 | if (ns_type == MLX5_FLOW_NAMESPACE_ESW_EGRESS || | |
3483 | ns_type == MLX5_FLOW_NAMESPACE_ESW_INGRESS) | |
3484 | ns = mlx5_get_flow_vport_acl_namespace(dev, ns_type, 0); | |
3485 | else | |
3486 | ns = mlx5_get_flow_namespace(dev, ns_type); | |
3487 | if (!ns) | |
3488 | return NULL; | |
3489 | ||
3490 | return find_root(&ns->node); | |
3491 | } | |
3492 | ||
3493 | struct mlx5_modify_hdr *mlx5_modify_header_alloc(struct mlx5_core_dev *dev, | |
3494 | u8 ns_type, u8 num_actions, | |
3495 | void *modify_actions) | |
3496 | { | |
3497 | struct mlx5_flow_root_namespace *root; | |
3498 | struct mlx5_modify_hdr *modify_hdr; | |
3499 | int err; | |
3500 | ||
3501 | root = get_root_namespace(dev, ns_type); | |
3502 | if (!root) | |
3503 | return ERR_PTR(-EOPNOTSUPP); | |
3504 | ||
3505 | modify_hdr = kzalloc(sizeof(*modify_hdr), GFP_KERNEL); | |
3506 | if (!modify_hdr) | |
3507 | return ERR_PTR(-ENOMEM); | |
3508 | ||
3509 | modify_hdr->ns_type = ns_type; | |
3510 | err = root->cmds->modify_header_alloc(root, ns_type, num_actions, | |
3511 | modify_actions, modify_hdr); | |
3512 | if (err) { | |
3513 | kfree(modify_hdr); | |
3514 | return ERR_PTR(err); | |
3515 | } | |
3516 | ||
3517 | return modify_hdr; | |
3518 | } | |
3519 | EXPORT_SYMBOL(mlx5_modify_header_alloc); | |
3520 | ||
3521 | void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev, | |
3522 | struct mlx5_modify_hdr *modify_hdr) | |
3523 | { | |
3524 | struct mlx5_flow_root_namespace *root; | |
3525 | ||
3526 | root = get_root_namespace(dev, modify_hdr->ns_type); | |
3527 | if (WARN_ON(!root)) | |
3528 | return; | |
3529 | root->cmds->modify_header_dealloc(root, modify_hdr); | |
3530 | kfree(modify_hdr); | |
3531 | } | |
3532 | EXPORT_SYMBOL(mlx5_modify_header_dealloc); | |
3533 | ||
3534 | struct mlx5_pkt_reformat *mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev, | |
3f3f05ab | 3535 | struct mlx5_pkt_reformat_params *params, |
2b688ea5 MG |
3536 | enum mlx5_flow_namespace_type ns_type) |
3537 | { | |
3538 | struct mlx5_pkt_reformat *pkt_reformat; | |
3539 | struct mlx5_flow_root_namespace *root; | |
3540 | int err; | |
3541 | ||
3542 | root = get_root_namespace(dev, ns_type); | |
3543 | if (!root) | |
3544 | return ERR_PTR(-EOPNOTSUPP); | |
3545 | ||
3546 | pkt_reformat = kzalloc(sizeof(*pkt_reformat), GFP_KERNEL); | |
3547 | if (!pkt_reformat) | |
3548 | return ERR_PTR(-ENOMEM); | |
3549 | ||
3550 | pkt_reformat->ns_type = ns_type; | |
3f3f05ab YK |
3551 | pkt_reformat->reformat_type = params->type; |
3552 | err = root->cmds->packet_reformat_alloc(root, params, ns_type, | |
2b688ea5 MG |
3553 | pkt_reformat); |
3554 | if (err) { | |
3555 | kfree(pkt_reformat); | |
3556 | return ERR_PTR(err); | |
3557 | } | |
3558 | ||
3559 | return pkt_reformat; | |
3560 | } | |
3561 | EXPORT_SYMBOL(mlx5_packet_reformat_alloc); | |
3562 | ||
3563 | void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev, | |
3564 | struct mlx5_pkt_reformat *pkt_reformat) | |
3565 | { | |
3566 | struct mlx5_flow_root_namespace *root; | |
3567 | ||
3568 | root = get_root_namespace(dev, pkt_reformat->ns_type); | |
3569 | if (WARN_ON(!root)) | |
3570 | return; | |
3571 | root->cmds->packet_reformat_dealloc(root, pkt_reformat); | |
3572 | kfree(pkt_reformat); | |
3573 | } | |
3574 | EXPORT_SYMBOL(mlx5_packet_reformat_dealloc); | |
6a48faee | 3575 | |
e7e2519e MG |
3576 | int mlx5_get_match_definer_id(struct mlx5_flow_definer *definer) |
3577 | { | |
3578 | return definer->id; | |
3579 | } | |
3580 | ||
3581 | struct mlx5_flow_definer * | |
3582 | mlx5_create_match_definer(struct mlx5_core_dev *dev, | |
3583 | enum mlx5_flow_namespace_type ns_type, u16 format_id, | |
3584 | u32 *match_mask) | |
3585 | { | |
3586 | struct mlx5_flow_root_namespace *root; | |
3587 | struct mlx5_flow_definer *definer; | |
3588 | int id; | |
3589 | ||
3590 | root = get_root_namespace(dev, ns_type); | |
3591 | if (!root) | |
3592 | return ERR_PTR(-EOPNOTSUPP); | |
3593 | ||
3594 | definer = kzalloc(sizeof(*definer), GFP_KERNEL); | |
3595 | if (!definer) | |
3596 | return ERR_PTR(-ENOMEM); | |
3597 | ||
3598 | definer->ns_type = ns_type; | |
3599 | id = root->cmds->create_match_definer(root, format_id, match_mask); | |
3600 | if (id < 0) { | |
3601 | mlx5_core_warn(root->dev, "Failed to create match definer (%d)\n", id); | |
3602 | kfree(definer); | |
3603 | return ERR_PTR(id); | |
3604 | } | |
3605 | definer->id = id; | |
3606 | return definer; | |
3607 | } | |
3608 | ||
3609 | void mlx5_destroy_match_definer(struct mlx5_core_dev *dev, | |
3610 | struct mlx5_flow_definer *definer) | |
3611 | { | |
3612 | struct mlx5_flow_root_namespace *root; | |
3613 | ||
3614 | root = get_root_namespace(dev, definer->ns_type); | |
3615 | if (WARN_ON(!root)) | |
3616 | return; | |
3617 | ||
3618 | root->cmds->destroy_match_definer(root, definer->id); | |
3619 | kfree(definer); | |
3620 | } | |
3621 | ||
6a48faee MG |
3622 | int mlx5_flow_namespace_set_peer(struct mlx5_flow_root_namespace *ns, |
3623 | struct mlx5_flow_root_namespace *peer_ns) | |
3624 | { | |
38b9d1c6 MG |
3625 | if (peer_ns && ns->mode != peer_ns->mode) { |
3626 | mlx5_core_err(ns->dev, | |
3627 | "Can't peer namespace of different steering mode\n"); | |
3628 | return -EINVAL; | |
3629 | } | |
3630 | ||
6a48faee MG |
3631 | return ns->cmds->set_peer(ns, peer_ns); |
3632 | } | |
38b9d1c6 MG |
3633 | |
3634 | /* This function should be called only at init stage of the namespace. | |
3635 | * It is not safe to call this function while steering operations | |
3636 | * are executed in the namespace. | |
3637 | */ | |
3638 | int mlx5_flow_namespace_set_mode(struct mlx5_flow_namespace *ns, | |
3639 | enum mlx5_flow_steering_mode mode) | |
3640 | { | |
3641 | struct mlx5_flow_root_namespace *root; | |
3642 | const struct mlx5_flow_cmds *cmds; | |
3643 | int err; | |
3644 | ||
3645 | root = find_root(&ns->node); | |
3646 | if (&root->ns != ns) | |
3647 | /* Can't set cmds to non root namespace */ | |
3648 | return -EINVAL; | |
3649 | ||
3650 | if (root->table_type != FS_FT_FDB) | |
3651 | return -EOPNOTSUPP; | |
3652 | ||
3653 | if (root->mode == mode) | |
3654 | return 0; | |
3655 | ||
3656 | if (mode == MLX5_FLOW_STEERING_MODE_SMFS) | |
3657 | cmds = mlx5_fs_cmd_get_dr_cmds(); | |
3658 | else | |
3659 | cmds = mlx5_fs_cmd_get_fw_cmds(); | |
3660 | if (!cmds) | |
3661 | return -EOPNOTSUPP; | |
3662 | ||
3663 | err = cmds->create_ns(root); | |
3664 | if (err) { | |
3665 | mlx5_core_err(root->dev, "Failed to create flow namespace (%d)\n", | |
3666 | err); | |
3667 | return err; | |
3668 | } | |
3669 | ||
3670 | root->cmds->destroy_ns(root); | |
3671 | root->cmds = cmds; | |
3672 | root->mode = mode; | |
3673 | ||
3674 | return 0; | |
3675 | } |