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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> | |
35 | ||
36 | #include "mlx5_core.h" | |
37 | #include "fs_core.h" | |
0c56b975 MG |
38 | #include "fs_cmd.h" |
39 | ||
25302363 MG |
40 | #define INIT_TREE_NODE_ARRAY_SIZE(...) (sizeof((struct init_tree_node[]){__VA_ARGS__}) /\ |
41 | sizeof(struct init_tree_node)) | |
42 | ||
a257b94a | 43 | #define ADD_PRIO(num_prios_val, min_level_val, num_levels_val, caps_val,\ |
8d40d162 | 44 | ...) {.type = FS_TYPE_PRIO,\ |
25302363 | 45 | .min_ft_level = min_level_val,\ |
a257b94a | 46 | .num_levels = num_levels_val,\ |
4cbdd30e | 47 | .num_leaf_prios = num_prios_val,\ |
8d40d162 | 48 | .caps = caps_val,\ |
25302363 MG |
49 | .children = (struct init_tree_node[]) {__VA_ARGS__},\ |
50 | .ar_size = INIT_TREE_NODE_ARRAY_SIZE(__VA_ARGS__) \ | |
51 | } | |
52 | ||
a257b94a MG |
53 | #define ADD_MULTIPLE_PRIO(num_prios_val, num_levels_val, ...)\ |
54 | ADD_PRIO(num_prios_val, 0, num_levels_val, {},\ | |
4cbdd30e | 55 | __VA_ARGS__)\ |
25302363 MG |
56 | |
57 | #define ADD_NS(...) {.type = FS_TYPE_NAMESPACE,\ | |
58 | .children = (struct init_tree_node[]) {__VA_ARGS__},\ | |
59 | .ar_size = INIT_TREE_NODE_ARRAY_SIZE(__VA_ARGS__) \ | |
60 | } | |
61 | ||
8d40d162 MG |
62 | #define INIT_CAPS_ARRAY_SIZE(...) (sizeof((long[]){__VA_ARGS__}) /\ |
63 | sizeof(long)) | |
64 | ||
65 | #define FS_CAP(cap) (__mlx5_bit_off(flow_table_nic_cap, cap)) | |
66 | ||
67 | #define FS_REQUIRED_CAPS(...) {.arr_sz = INIT_CAPS_ARRAY_SIZE(__VA_ARGS__), \ | |
68 | .caps = (long[]) {__VA_ARGS__} } | |
69 | ||
6dc6071c MG |
70 | #define FS_CHAINING_CAPS FS_REQUIRED_CAPS(FS_CAP(flow_table_properties_nic_receive.flow_modify_en), \ |
71 | FS_CAP(flow_table_properties_nic_receive.modify_root), \ | |
72 | FS_CAP(flow_table_properties_nic_receive.identified_miss_table_mode), \ | |
73 | FS_CAP(flow_table_properties_nic_receive.flow_table_modify)) | |
74 | ||
a257b94a | 75 | #define LEFTOVERS_NUM_LEVELS 1 |
4cbdd30e | 76 | #define LEFTOVERS_NUM_PRIOS 1 |
4cbdd30e | 77 | |
a257b94a | 78 | #define BY_PASS_PRIO_NUM_LEVELS 1 |
6dc6071c | 79 | #define BY_PASS_MIN_LEVEL (ETHTOOL_MIN_LEVEL + MLX5_BY_PASS_NUM_PRIOS +\ |
a257b94a MG |
80 | LEFTOVERS_NUM_PRIOS) |
81 | ||
6dc6071c | 82 | #define ETHTOOL_PRIO_NUM_LEVELS 1 |
e5835f28 | 83 | #define ETHTOOL_NUM_PRIOS 11 |
6dc6071c | 84 | #define ETHTOOL_MIN_LEVEL (KERNEL_MIN_LEVEL + ETHTOOL_NUM_PRIOS) |
1cabe6b0 MG |
85 | /* Vlan, mac, ttc, aRFS */ |
86 | #define KERNEL_NIC_PRIO_NUM_LEVELS 4 | |
13de6c10 MG |
87 | #define KERNEL_NIC_NUM_PRIOS 1 |
88 | /* One more level for tc */ | |
89 | #define KERNEL_MIN_LEVEL (KERNEL_NIC_PRIO_NUM_LEVELS + 1) | |
8d40d162 | 90 | |
a257b94a | 91 | #define ANCHOR_NUM_LEVELS 1 |
153fefbf MG |
92 | #define ANCHOR_NUM_PRIOS 1 |
93 | #define ANCHOR_MIN_LEVEL (BY_PASS_MIN_LEVEL + 1) | |
acbc2004 OG |
94 | |
95 | #define OFFLOADS_MAX_FT 1 | |
96 | #define OFFLOADS_NUM_PRIOS 1 | |
97 | #define OFFLOADS_MIN_LEVEL (ANCHOR_MIN_LEVEL + 1) | |
98 | ||
3e75d4eb AH |
99 | #define LAG_PRIO_NUM_LEVELS 1 |
100 | #define LAG_NUM_PRIOS 1 | |
101 | #define LAG_MIN_LEVEL (OFFLOADS_MIN_LEVEL + 1) | |
102 | ||
8d40d162 MG |
103 | struct node_caps { |
104 | size_t arr_sz; | |
105 | long *caps; | |
106 | }; | |
25302363 MG |
107 | static struct init_tree_node { |
108 | enum fs_node_type type; | |
109 | struct init_tree_node *children; | |
110 | int ar_size; | |
8d40d162 | 111 | struct node_caps caps; |
25302363 | 112 | int min_ft_level; |
4cbdd30e | 113 | int num_leaf_prios; |
25302363 | 114 | int prio; |
a257b94a | 115 | int num_levels; |
25302363 MG |
116 | } root_fs = { |
117 | .type = FS_TYPE_NAMESPACE, | |
3e75d4eb | 118 | .ar_size = 7, |
25302363 | 119 | .children = (struct init_tree_node[]) { |
4cbdd30e | 120 | ADD_PRIO(0, BY_PASS_MIN_LEVEL, 0, |
6dc6071c | 121 | FS_CHAINING_CAPS, |
a257b94a MG |
122 | ADD_NS(ADD_MULTIPLE_PRIO(MLX5_BY_PASS_NUM_PRIOS, |
123 | BY_PASS_PRIO_NUM_LEVELS))), | |
3e75d4eb AH |
124 | ADD_PRIO(0, LAG_MIN_LEVEL, 0, |
125 | FS_CHAINING_CAPS, | |
126 | ADD_NS(ADD_MULTIPLE_PRIO(LAG_NUM_PRIOS, | |
127 | LAG_PRIO_NUM_LEVELS))), | |
acbc2004 OG |
128 | ADD_PRIO(0, OFFLOADS_MIN_LEVEL, 0, {}, |
129 | ADD_NS(ADD_MULTIPLE_PRIO(OFFLOADS_NUM_PRIOS, OFFLOADS_MAX_FT))), | |
6dc6071c MG |
130 | ADD_PRIO(0, ETHTOOL_MIN_LEVEL, 0, |
131 | FS_CHAINING_CAPS, | |
132 | ADD_NS(ADD_MULTIPLE_PRIO(ETHTOOL_NUM_PRIOS, | |
133 | ETHTOOL_PRIO_NUM_LEVELS))), | |
a257b94a | 134 | ADD_PRIO(0, KERNEL_MIN_LEVEL, 0, {}, |
13de6c10 MG |
135 | ADD_NS(ADD_MULTIPLE_PRIO(1, 1), |
136 | ADD_MULTIPLE_PRIO(KERNEL_NIC_NUM_PRIOS, | |
137 | KERNEL_NIC_PRIO_NUM_LEVELS))), | |
4cbdd30e | 138 | ADD_PRIO(0, BY_PASS_MIN_LEVEL, 0, |
6dc6071c | 139 | FS_CHAINING_CAPS, |
a257b94a | 140 | ADD_NS(ADD_MULTIPLE_PRIO(LEFTOVERS_NUM_PRIOS, LEFTOVERS_NUM_LEVELS))), |
153fefbf | 141 | ADD_PRIO(0, ANCHOR_MIN_LEVEL, 0, {}, |
a257b94a | 142 | ADD_NS(ADD_MULTIPLE_PRIO(ANCHOR_NUM_PRIOS, ANCHOR_NUM_LEVELS))), |
25302363 MG |
143 | } |
144 | }; | |
145 | ||
f0d22d18 MG |
146 | enum fs_i_mutex_lock_class { |
147 | FS_MUTEX_GRANDPARENT, | |
148 | FS_MUTEX_PARENT, | |
149 | FS_MUTEX_CHILD | |
150 | }; | |
151 | ||
0c56b975 MG |
152 | static void del_rule(struct fs_node *node); |
153 | static void del_flow_table(struct fs_node *node); | |
154 | static void del_flow_group(struct fs_node *node); | |
155 | static void del_fte(struct fs_node *node); | |
814fb875 MB |
156 | static bool mlx5_flow_dests_cmp(struct mlx5_flow_destination *d1, |
157 | struct mlx5_flow_destination *d2); | |
74491de9 MB |
158 | static struct mlx5_flow_rule * |
159 | find_flow_rule(struct fs_fte *fte, | |
160 | struct mlx5_flow_destination *dest); | |
de8575e0 MG |
161 | |
162 | static void tree_init_node(struct fs_node *node, | |
163 | unsigned int refcount, | |
164 | void (*remove_func)(struct fs_node *)) | |
165 | { | |
166 | atomic_set(&node->refcount, refcount); | |
167 | INIT_LIST_HEAD(&node->list); | |
168 | INIT_LIST_HEAD(&node->children); | |
169 | mutex_init(&node->lock); | |
170 | node->remove_func = remove_func; | |
171 | } | |
172 | ||
173 | static void tree_add_node(struct fs_node *node, struct fs_node *parent) | |
174 | { | |
175 | if (parent) | |
176 | atomic_inc(&parent->refcount); | |
177 | node->parent = parent; | |
178 | ||
179 | /* Parent is the root */ | |
180 | if (!parent) | |
181 | node->root = node; | |
182 | else | |
183 | node->root = parent->root; | |
184 | } | |
185 | ||
186 | static void tree_get_node(struct fs_node *node) | |
187 | { | |
188 | atomic_inc(&node->refcount); | |
189 | } | |
190 | ||
f0d22d18 MG |
191 | static void nested_lock_ref_node(struct fs_node *node, |
192 | enum fs_i_mutex_lock_class class) | |
de8575e0 MG |
193 | { |
194 | if (node) { | |
f0d22d18 | 195 | mutex_lock_nested(&node->lock, class); |
de8575e0 MG |
196 | atomic_inc(&node->refcount); |
197 | } | |
198 | } | |
199 | ||
200 | static void lock_ref_node(struct fs_node *node) | |
201 | { | |
202 | if (node) { | |
203 | mutex_lock(&node->lock); | |
204 | atomic_inc(&node->refcount); | |
205 | } | |
206 | } | |
207 | ||
208 | static void unlock_ref_node(struct fs_node *node) | |
209 | { | |
210 | if (node) { | |
211 | atomic_dec(&node->refcount); | |
212 | mutex_unlock(&node->lock); | |
213 | } | |
214 | } | |
215 | ||
216 | static void tree_put_node(struct fs_node *node) | |
217 | { | |
218 | struct fs_node *parent_node = node->parent; | |
219 | ||
220 | lock_ref_node(parent_node); | |
221 | if (atomic_dec_and_test(&node->refcount)) { | |
222 | if (parent_node) | |
223 | list_del_init(&node->list); | |
224 | if (node->remove_func) | |
225 | node->remove_func(node); | |
226 | kfree(node); | |
227 | node = NULL; | |
228 | } | |
229 | unlock_ref_node(parent_node); | |
230 | if (!node && parent_node) | |
231 | tree_put_node(parent_node); | |
232 | } | |
233 | ||
234 | static int tree_remove_node(struct fs_node *node) | |
235 | { | |
b3638e1a MG |
236 | if (atomic_read(&node->refcount) > 1) { |
237 | atomic_dec(&node->refcount); | |
238 | return -EEXIST; | |
239 | } | |
de8575e0 MG |
240 | tree_put_node(node); |
241 | return 0; | |
242 | } | |
5e1626c0 MG |
243 | |
244 | static struct fs_prio *find_prio(struct mlx5_flow_namespace *ns, | |
245 | unsigned int prio) | |
246 | { | |
247 | struct fs_prio *iter_prio; | |
248 | ||
249 | fs_for_each_prio(iter_prio, ns) { | |
250 | if (iter_prio->prio == prio) | |
251 | return iter_prio; | |
252 | } | |
253 | ||
254 | return NULL; | |
255 | } | |
256 | ||
5e1626c0 MG |
257 | static bool masked_memcmp(void *mask, void *val1, void *val2, size_t size) |
258 | { | |
259 | unsigned int i; | |
260 | ||
261 | for (i = 0; i < size; i++, mask++, val1++, val2++) | |
262 | if ((*((u8 *)val1) & (*(u8 *)mask)) != | |
263 | ((*(u8 *)val2) & (*(u8 *)mask))) | |
264 | return false; | |
265 | ||
266 | return true; | |
267 | } | |
268 | ||
269 | static bool compare_match_value(struct mlx5_flow_group_mask *mask, | |
270 | void *fte_param1, void *fte_param2) | |
271 | { | |
272 | if (mask->match_criteria_enable & | |
273 | 1 << MLX5_CREATE_FLOW_GROUP_IN_MATCH_CRITERIA_ENABLE_OUTER_HEADERS) { | |
274 | void *fte_match1 = MLX5_ADDR_OF(fte_match_param, | |
275 | fte_param1, outer_headers); | |
276 | void *fte_match2 = MLX5_ADDR_OF(fte_match_param, | |
277 | fte_param2, outer_headers); | |
278 | void *fte_mask = MLX5_ADDR_OF(fte_match_param, | |
279 | mask->match_criteria, outer_headers); | |
280 | ||
281 | if (!masked_memcmp(fte_mask, fte_match1, fte_match2, | |
282 | MLX5_ST_SZ_BYTES(fte_match_set_lyr_2_4))) | |
283 | return false; | |
284 | } | |
285 | ||
286 | if (mask->match_criteria_enable & | |
287 | 1 << MLX5_CREATE_FLOW_GROUP_IN_MATCH_CRITERIA_ENABLE_MISC_PARAMETERS) { | |
288 | void *fte_match1 = MLX5_ADDR_OF(fte_match_param, | |
289 | fte_param1, misc_parameters); | |
290 | void *fte_match2 = MLX5_ADDR_OF(fte_match_param, | |
291 | fte_param2, misc_parameters); | |
292 | void *fte_mask = MLX5_ADDR_OF(fte_match_param, | |
293 | mask->match_criteria, misc_parameters); | |
294 | ||
295 | if (!masked_memcmp(fte_mask, fte_match1, fte_match2, | |
296 | MLX5_ST_SZ_BYTES(fte_match_set_misc))) | |
297 | return false; | |
298 | } | |
299 | ||
300 | if (mask->match_criteria_enable & | |
301 | 1 << MLX5_CREATE_FLOW_GROUP_IN_MATCH_CRITERIA_ENABLE_INNER_HEADERS) { | |
302 | void *fte_match1 = MLX5_ADDR_OF(fte_match_param, | |
303 | fte_param1, inner_headers); | |
304 | void *fte_match2 = MLX5_ADDR_OF(fte_match_param, | |
305 | fte_param2, inner_headers); | |
306 | void *fte_mask = MLX5_ADDR_OF(fte_match_param, | |
307 | mask->match_criteria, inner_headers); | |
308 | ||
309 | if (!masked_memcmp(fte_mask, fte_match1, fte_match2, | |
310 | MLX5_ST_SZ_BYTES(fte_match_set_lyr_2_4))) | |
311 | return false; | |
312 | } | |
313 | return true; | |
314 | } | |
315 | ||
316 | static bool compare_match_criteria(u8 match_criteria_enable1, | |
317 | u8 match_criteria_enable2, | |
318 | void *mask1, void *mask2) | |
319 | { | |
320 | return match_criteria_enable1 == match_criteria_enable2 && | |
321 | !memcmp(mask1, mask2, MLX5_ST_SZ_BYTES(fte_match_param)); | |
322 | } | |
0c56b975 MG |
323 | |
324 | static struct mlx5_flow_root_namespace *find_root(struct fs_node *node) | |
325 | { | |
326 | struct fs_node *root; | |
327 | struct mlx5_flow_namespace *ns; | |
328 | ||
329 | root = node->root; | |
330 | ||
331 | if (WARN_ON(root->type != FS_TYPE_NAMESPACE)) { | |
332 | pr_warn("mlx5: flow steering node is not in tree or garbaged\n"); | |
333 | return NULL; | |
334 | } | |
335 | ||
336 | ns = container_of(root, struct mlx5_flow_namespace, node); | |
337 | return container_of(ns, struct mlx5_flow_root_namespace, ns); | |
338 | } | |
339 | ||
340 | static inline struct mlx5_core_dev *get_dev(struct fs_node *node) | |
341 | { | |
342 | struct mlx5_flow_root_namespace *root = find_root(node); | |
343 | ||
344 | if (root) | |
345 | return root->dev; | |
346 | return NULL; | |
347 | } | |
348 | ||
349 | static void del_flow_table(struct fs_node *node) | |
350 | { | |
351 | struct mlx5_flow_table *ft; | |
352 | struct mlx5_core_dev *dev; | |
353 | struct fs_prio *prio; | |
354 | int err; | |
355 | ||
356 | fs_get_obj(ft, node); | |
357 | dev = get_dev(&ft->node); | |
358 | ||
359 | err = mlx5_cmd_destroy_flow_table(dev, ft); | |
360 | if (err) | |
2974ab6e | 361 | mlx5_core_warn(dev, "flow steering can't destroy ft\n"); |
0c56b975 MG |
362 | fs_get_obj(prio, ft->node.parent); |
363 | prio->num_ft--; | |
364 | } | |
365 | ||
366 | static void del_rule(struct fs_node *node) | |
367 | { | |
368 | struct mlx5_flow_rule *rule; | |
369 | struct mlx5_flow_table *ft; | |
370 | struct mlx5_flow_group *fg; | |
371 | struct fs_fte *fte; | |
372 | u32 *match_value; | |
bd5251db | 373 | int modify_mask; |
0c56b975 MG |
374 | struct mlx5_core_dev *dev = get_dev(node); |
375 | int match_len = MLX5_ST_SZ_BYTES(fte_match_param); | |
376 | int err; | |
ae058314 | 377 | bool update_fte = false; |
0c56b975 MG |
378 | |
379 | match_value = mlx5_vzalloc(match_len); | |
380 | if (!match_value) { | |
2974ab6e | 381 | mlx5_core_warn(dev, "failed to allocate inbox\n"); |
0c56b975 MG |
382 | return; |
383 | } | |
384 | ||
385 | fs_get_obj(rule, node); | |
386 | fs_get_obj(fte, rule->node.parent); | |
387 | fs_get_obj(fg, fte->node.parent); | |
388 | memcpy(match_value, fte->val, sizeof(fte->val)); | |
389 | fs_get_obj(ft, fg->node.parent); | |
390 | list_del(&rule->node.list); | |
b3638e1a MG |
391 | if (rule->sw_action == MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO) { |
392 | mutex_lock(&rule->dest_attr.ft->lock); | |
393 | list_del(&rule->next_ft); | |
394 | mutex_unlock(&rule->dest_attr.ft->lock); | |
395 | } | |
ae058314 MB |
396 | |
397 | if (rule->dest_attr.type == MLX5_FLOW_DESTINATION_TYPE_COUNTER && | |
398 | --fte->dests_size) { | |
399 | modify_mask = BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_ACTION); | |
400 | fte->action &= ~MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
401 | update_fte = true; | |
402 | goto out; | |
403 | } | |
404 | ||
60ab4584 AV |
405 | if ((fte->action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) && |
406 | --fte->dests_size) { | |
bd5251db | 407 | modify_mask = BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_DESTINATION_LIST), |
ae058314 MB |
408 | update_fte = true; |
409 | } | |
410 | out: | |
411 | if (update_fte && fte->dests_size) { | |
412 | err = mlx5_cmd_update_fte(dev, ft, fg->id, modify_mask, fte); | |
0c56b975 | 413 | if (err) |
2974ab6e SM |
414 | mlx5_core_warn(dev, |
415 | "%s can't del rule fg id=%d fte_index=%d\n", | |
416 | __func__, fg->id, fte->index); | |
0c56b975 MG |
417 | } |
418 | kvfree(match_value); | |
419 | } | |
420 | ||
421 | static void del_fte(struct fs_node *node) | |
422 | { | |
423 | struct mlx5_flow_table *ft; | |
424 | struct mlx5_flow_group *fg; | |
425 | struct mlx5_core_dev *dev; | |
426 | struct fs_fte *fte; | |
427 | int err; | |
428 | ||
429 | fs_get_obj(fte, node); | |
430 | fs_get_obj(fg, fte->node.parent); | |
431 | fs_get_obj(ft, fg->node.parent); | |
432 | ||
433 | dev = get_dev(&ft->node); | |
434 | err = mlx5_cmd_delete_fte(dev, ft, | |
435 | fte->index); | |
436 | if (err) | |
2974ab6e SM |
437 | mlx5_core_warn(dev, |
438 | "flow steering can't delete fte in index %d of flow group id %d\n", | |
439 | fte->index, fg->id); | |
0c56b975 MG |
440 | |
441 | fte->status = 0; | |
442 | fg->num_ftes--; | |
443 | } | |
444 | ||
445 | static void del_flow_group(struct fs_node *node) | |
446 | { | |
447 | struct mlx5_flow_group *fg; | |
448 | struct mlx5_flow_table *ft; | |
449 | struct mlx5_core_dev *dev; | |
450 | ||
451 | fs_get_obj(fg, node); | |
452 | fs_get_obj(ft, fg->node.parent); | |
453 | dev = get_dev(&ft->node); | |
454 | ||
32dba76a PB |
455 | if (ft->autogroup.active) |
456 | ft->autogroup.num_groups--; | |
457 | ||
0c56b975 | 458 | if (mlx5_cmd_destroy_flow_group(dev, ft, fg->id)) |
2974ab6e SM |
459 | mlx5_core_warn(dev, "flow steering can't destroy fg %d of ft %d\n", |
460 | fg->id, ft->id); | |
0c56b975 MG |
461 | } |
462 | ||
66958ed9 | 463 | static struct fs_fte *alloc_fte(struct mlx5_flow_act *flow_act, |
0c56b975 MG |
464 | u32 *match_value, |
465 | unsigned int index) | |
466 | { | |
467 | struct fs_fte *fte; | |
468 | ||
469 | fte = kzalloc(sizeof(*fte), GFP_KERNEL); | |
470 | if (!fte) | |
471 | return ERR_PTR(-ENOMEM); | |
472 | ||
473 | memcpy(fte->val, match_value, sizeof(fte->val)); | |
474 | fte->node.type = FS_TYPE_FLOW_ENTRY; | |
66958ed9 | 475 | fte->flow_tag = flow_act->flow_tag; |
0c56b975 | 476 | fte->index = index; |
66958ed9 HHZ |
477 | fte->action = flow_act->action; |
478 | fte->encap_id = flow_act->encap_id; | |
0c56b975 MG |
479 | |
480 | return fte; | |
481 | } | |
482 | ||
483 | static struct mlx5_flow_group *alloc_flow_group(u32 *create_fg_in) | |
484 | { | |
485 | struct mlx5_flow_group *fg; | |
486 | void *match_criteria = MLX5_ADDR_OF(create_flow_group_in, | |
487 | create_fg_in, match_criteria); | |
488 | u8 match_criteria_enable = MLX5_GET(create_flow_group_in, | |
489 | create_fg_in, | |
490 | match_criteria_enable); | |
491 | fg = kzalloc(sizeof(*fg), GFP_KERNEL); | |
492 | if (!fg) | |
493 | return ERR_PTR(-ENOMEM); | |
494 | ||
495 | fg->mask.match_criteria_enable = match_criteria_enable; | |
496 | memcpy(&fg->mask.match_criteria, match_criteria, | |
497 | sizeof(fg->mask.match_criteria)); | |
498 | fg->node.type = FS_TYPE_FLOW_GROUP; | |
499 | fg->start_index = MLX5_GET(create_flow_group_in, create_fg_in, | |
500 | start_flow_index); | |
501 | fg->max_ftes = MLX5_GET(create_flow_group_in, create_fg_in, | |
502 | end_flow_index) - fg->start_index + 1; | |
503 | return fg; | |
504 | } | |
505 | ||
efdc810b | 506 | static struct mlx5_flow_table *alloc_flow_table(int level, u16 vport, int max_fte, |
aaff1bea | 507 | enum fs_flow_table_type table_type, |
c9f1b073 HHZ |
508 | enum fs_flow_table_op_mod op_mod, |
509 | u32 flags) | |
0c56b975 MG |
510 | { |
511 | struct mlx5_flow_table *ft; | |
512 | ||
513 | ft = kzalloc(sizeof(*ft), GFP_KERNEL); | |
514 | if (!ft) | |
515 | return NULL; | |
516 | ||
517 | ft->level = level; | |
518 | ft->node.type = FS_TYPE_FLOW_TABLE; | |
aaff1bea | 519 | ft->op_mod = op_mod; |
0c56b975 | 520 | ft->type = table_type; |
efdc810b | 521 | ft->vport = vport; |
0c56b975 | 522 | ft->max_fte = max_fte; |
c9f1b073 | 523 | ft->flags = flags; |
b3638e1a MG |
524 | INIT_LIST_HEAD(&ft->fwd_rules); |
525 | mutex_init(&ft->lock); | |
0c56b975 MG |
526 | |
527 | return ft; | |
528 | } | |
529 | ||
fdb6896f MG |
530 | /* If reverse is false, then we search for the first flow table in the |
531 | * root sub-tree from start(closest from right), else we search for the | |
532 | * last flow table in the root sub-tree till start(closest from left). | |
533 | */ | |
534 | static struct mlx5_flow_table *find_closest_ft_recursive(struct fs_node *root, | |
535 | struct list_head *start, | |
536 | bool reverse) | |
537 | { | |
538 | #define list_advance_entry(pos, reverse) \ | |
539 | ((reverse) ? list_prev_entry(pos, list) : list_next_entry(pos, list)) | |
540 | ||
541 | #define list_for_each_advance_continue(pos, head, reverse) \ | |
542 | for (pos = list_advance_entry(pos, reverse); \ | |
543 | &pos->list != (head); \ | |
544 | pos = list_advance_entry(pos, reverse)) | |
545 | ||
546 | struct fs_node *iter = list_entry(start, struct fs_node, list); | |
547 | struct mlx5_flow_table *ft = NULL; | |
548 | ||
549 | if (!root) | |
550 | return NULL; | |
551 | ||
552 | list_for_each_advance_continue(iter, &root->children, reverse) { | |
553 | if (iter->type == FS_TYPE_FLOW_TABLE) { | |
554 | fs_get_obj(ft, iter); | |
555 | return ft; | |
556 | } | |
557 | ft = find_closest_ft_recursive(iter, &iter->children, reverse); | |
558 | if (ft) | |
559 | return ft; | |
560 | } | |
561 | ||
562 | return ft; | |
563 | } | |
564 | ||
565 | /* If reverse if false then return the first flow table in next priority of | |
566 | * prio in the tree, else return the last flow table in the previous priority | |
567 | * of prio in the tree. | |
568 | */ | |
569 | static struct mlx5_flow_table *find_closest_ft(struct fs_prio *prio, bool reverse) | |
570 | { | |
571 | struct mlx5_flow_table *ft = NULL; | |
572 | struct fs_node *curr_node; | |
573 | struct fs_node *parent; | |
574 | ||
575 | parent = prio->node.parent; | |
576 | curr_node = &prio->node; | |
577 | while (!ft && parent) { | |
578 | ft = find_closest_ft_recursive(parent, &curr_node->list, reverse); | |
579 | curr_node = parent; | |
580 | parent = curr_node->parent; | |
581 | } | |
582 | return ft; | |
583 | } | |
584 | ||
585 | /* Assuming all the tree is locked by mutex chain lock */ | |
586 | static struct mlx5_flow_table *find_next_chained_ft(struct fs_prio *prio) | |
587 | { | |
588 | return find_closest_ft(prio, false); | |
589 | } | |
590 | ||
591 | /* Assuming all the tree is locked by mutex chain lock */ | |
592 | static struct mlx5_flow_table *find_prev_chained_ft(struct fs_prio *prio) | |
593 | { | |
594 | return find_closest_ft(prio, true); | |
595 | } | |
596 | ||
f90edfd2 MG |
597 | static int connect_fts_in_prio(struct mlx5_core_dev *dev, |
598 | struct fs_prio *prio, | |
599 | struct mlx5_flow_table *ft) | |
600 | { | |
601 | struct mlx5_flow_table *iter; | |
602 | int i = 0; | |
603 | int err; | |
604 | ||
605 | fs_for_each_ft(iter, prio) { | |
606 | i++; | |
607 | err = mlx5_cmd_modify_flow_table(dev, | |
608 | iter, | |
609 | ft); | |
610 | if (err) { | |
611 | mlx5_core_warn(dev, "Failed to modify flow table %d\n", | |
612 | iter->id); | |
613 | /* The driver is out of sync with the FW */ | |
614 | if (i > 1) | |
615 | WARN_ON(true); | |
616 | return err; | |
617 | } | |
618 | } | |
619 | return 0; | |
620 | } | |
621 | ||
622 | /* Connect flow tables from previous priority of prio to ft */ | |
623 | static int connect_prev_fts(struct mlx5_core_dev *dev, | |
624 | struct mlx5_flow_table *ft, | |
625 | struct fs_prio *prio) | |
626 | { | |
627 | struct mlx5_flow_table *prev_ft; | |
628 | ||
629 | prev_ft = find_prev_chained_ft(prio); | |
630 | if (prev_ft) { | |
631 | struct fs_prio *prev_prio; | |
632 | ||
633 | fs_get_obj(prev_prio, prev_ft->node.parent); | |
634 | return connect_fts_in_prio(dev, prev_prio, ft); | |
635 | } | |
636 | return 0; | |
637 | } | |
638 | ||
2cc43b49 MG |
639 | static int update_root_ft_create(struct mlx5_flow_table *ft, struct fs_prio |
640 | *prio) | |
641 | { | |
642 | struct mlx5_flow_root_namespace *root = find_root(&prio->node); | |
643 | int min_level = INT_MAX; | |
644 | int err; | |
645 | ||
646 | if (root->root_ft) | |
647 | min_level = root->root_ft->level; | |
648 | ||
649 | if (ft->level >= min_level) | |
650 | return 0; | |
651 | ||
652 | err = mlx5_cmd_update_root_ft(root->dev, ft); | |
653 | if (err) | |
654 | mlx5_core_warn(root->dev, "Update root flow table of id=%u failed\n", | |
655 | ft->id); | |
656 | else | |
657 | root->root_ft = ft; | |
658 | ||
659 | return err; | |
660 | } | |
661 | ||
74491de9 MB |
662 | static int _mlx5_modify_rule_destination(struct mlx5_flow_rule *rule, |
663 | struct mlx5_flow_destination *dest) | |
b3638e1a MG |
664 | { |
665 | struct mlx5_flow_table *ft; | |
666 | struct mlx5_flow_group *fg; | |
667 | struct fs_fte *fte; | |
bd5251db | 668 | int modify_mask = BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_DESTINATION_LIST); |
b3638e1a MG |
669 | int err = 0; |
670 | ||
671 | fs_get_obj(fte, rule->node.parent); | |
672 | if (!(fte->action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST)) | |
673 | return -EINVAL; | |
674 | lock_ref_node(&fte->node); | |
675 | fs_get_obj(fg, fte->node.parent); | |
676 | fs_get_obj(ft, fg->node.parent); | |
677 | ||
678 | memcpy(&rule->dest_attr, dest, sizeof(*dest)); | |
679 | err = mlx5_cmd_update_fte(get_dev(&ft->node), | |
bd5251db AV |
680 | ft, fg->id, |
681 | modify_mask, | |
682 | fte); | |
b3638e1a MG |
683 | unlock_ref_node(&fte->node); |
684 | ||
685 | return err; | |
686 | } | |
687 | ||
74491de9 MB |
688 | int mlx5_modify_rule_destination(struct mlx5_flow_handle *handle, |
689 | struct mlx5_flow_destination *new_dest, | |
690 | struct mlx5_flow_destination *old_dest) | |
691 | { | |
692 | int i; | |
693 | ||
694 | if (!old_dest) { | |
695 | if (handle->num_rules != 1) | |
696 | return -EINVAL; | |
697 | return _mlx5_modify_rule_destination(handle->rule[0], | |
698 | new_dest); | |
699 | } | |
700 | ||
701 | for (i = 0; i < handle->num_rules; i++) { | |
702 | if (mlx5_flow_dests_cmp(new_dest, &handle->rule[i]->dest_attr)) | |
703 | return _mlx5_modify_rule_destination(handle->rule[i], | |
704 | new_dest); | |
705 | } | |
706 | ||
707 | return -EINVAL; | |
708 | } | |
709 | ||
b3638e1a MG |
710 | /* Modify/set FWD rules that point on old_next_ft to point on new_next_ft */ |
711 | static int connect_fwd_rules(struct mlx5_core_dev *dev, | |
712 | struct mlx5_flow_table *new_next_ft, | |
713 | struct mlx5_flow_table *old_next_ft) | |
714 | { | |
715 | struct mlx5_flow_destination dest; | |
716 | struct mlx5_flow_rule *iter; | |
717 | int err = 0; | |
718 | ||
719 | /* new_next_ft and old_next_ft could be NULL only | |
720 | * when we create/destroy the anchor flow table. | |
721 | */ | |
722 | if (!new_next_ft || !old_next_ft) | |
723 | return 0; | |
724 | ||
725 | dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; | |
726 | dest.ft = new_next_ft; | |
727 | ||
728 | mutex_lock(&old_next_ft->lock); | |
729 | list_splice_init(&old_next_ft->fwd_rules, &new_next_ft->fwd_rules); | |
730 | mutex_unlock(&old_next_ft->lock); | |
731 | list_for_each_entry(iter, &new_next_ft->fwd_rules, next_ft) { | |
74491de9 | 732 | err = _mlx5_modify_rule_destination(iter, &dest); |
b3638e1a MG |
733 | if (err) |
734 | pr_err("mlx5_core: failed to modify rule to point on flow table %d\n", | |
735 | new_next_ft->id); | |
736 | } | |
737 | return 0; | |
738 | } | |
739 | ||
f90edfd2 MG |
740 | static int connect_flow_table(struct mlx5_core_dev *dev, struct mlx5_flow_table *ft, |
741 | struct fs_prio *prio) | |
742 | { | |
b3638e1a | 743 | struct mlx5_flow_table *next_ft; |
f90edfd2 MG |
744 | int err = 0; |
745 | ||
746 | /* Connect_prev_fts and update_root_ft_create are mutually exclusive */ | |
747 | ||
748 | if (list_empty(&prio->node.children)) { | |
749 | err = connect_prev_fts(dev, ft, prio); | |
750 | if (err) | |
751 | return err; | |
b3638e1a MG |
752 | |
753 | next_ft = find_next_chained_ft(prio); | |
754 | err = connect_fwd_rules(dev, ft, next_ft); | |
755 | if (err) | |
756 | return err; | |
f90edfd2 MG |
757 | } |
758 | ||
759 | if (MLX5_CAP_FLOWTABLE(dev, | |
760 | flow_table_properties_nic_receive.modify_root)) | |
761 | err = update_root_ft_create(ft, prio); | |
762 | return err; | |
763 | } | |
764 | ||
d63cd286 MG |
765 | static void list_add_flow_table(struct mlx5_flow_table *ft, |
766 | struct fs_prio *prio) | |
767 | { | |
768 | struct list_head *prev = &prio->node.children; | |
769 | struct mlx5_flow_table *iter; | |
770 | ||
771 | fs_for_each_ft(iter, prio) { | |
772 | if (iter->level > ft->level) | |
773 | break; | |
774 | prev = &iter->node.list; | |
775 | } | |
776 | list_add(&ft->node.list, prev); | |
777 | } | |
778 | ||
efdc810b | 779 | static struct mlx5_flow_table *__mlx5_create_flow_table(struct mlx5_flow_namespace *ns, |
aaff1bea | 780 | enum fs_flow_table_op_mod op_mod, |
efdc810b | 781 | u16 vport, int prio, |
c9f1b073 HHZ |
782 | int max_fte, u32 level, |
783 | u32 flags) | |
0c56b975 | 784 | { |
f90edfd2 | 785 | struct mlx5_flow_table *next_ft = NULL; |
0c56b975 MG |
786 | struct mlx5_flow_table *ft; |
787 | int err; | |
788 | int log_table_sz; | |
789 | struct mlx5_flow_root_namespace *root = | |
790 | find_root(&ns->node); | |
791 | struct fs_prio *fs_prio = NULL; | |
792 | ||
793 | if (!root) { | |
794 | pr_err("mlx5: flow steering failed to find root of namespace\n"); | |
795 | return ERR_PTR(-ENODEV); | |
796 | } | |
797 | ||
2cc43b49 | 798 | mutex_lock(&root->chain_lock); |
0c56b975 | 799 | fs_prio = find_prio(ns, prio); |
2cc43b49 MG |
800 | if (!fs_prio) { |
801 | err = -EINVAL; | |
802 | goto unlock_root; | |
803 | } | |
d63cd286 | 804 | if (level >= fs_prio->num_levels) { |
0c56b975 | 805 | err = -ENOSPC; |
2cc43b49 | 806 | goto unlock_root; |
0c56b975 | 807 | } |
d63cd286 MG |
808 | /* The level is related to the |
809 | * priority level range. | |
810 | */ | |
811 | level += fs_prio->start_level; | |
812 | ft = alloc_flow_table(level, | |
efdc810b | 813 | vport, |
aaff1bea AH |
814 | max_fte ? roundup_pow_of_two(max_fte) : 0, |
815 | root->table_type, | |
c9f1b073 | 816 | op_mod, flags); |
0c56b975 MG |
817 | if (!ft) { |
818 | err = -ENOMEM; | |
2cc43b49 | 819 | goto unlock_root; |
0c56b975 MG |
820 | } |
821 | ||
822 | tree_init_node(&ft->node, 1, del_flow_table); | |
aaff1bea | 823 | log_table_sz = ft->max_fte ? ilog2(ft->max_fte) : 0; |
f90edfd2 | 824 | next_ft = find_next_chained_ft(fs_prio); |
aaff1bea | 825 | err = mlx5_cmd_create_flow_table(root->dev, ft->vport, ft->op_mod, ft->type, |
c9f1b073 HHZ |
826 | ft->level, log_table_sz, next_ft, &ft->id, |
827 | ft->flags); | |
0c56b975 MG |
828 | if (err) |
829 | goto free_ft; | |
830 | ||
f90edfd2 MG |
831 | err = connect_flow_table(root->dev, ft, fs_prio); |
832 | if (err) | |
833 | goto destroy_ft; | |
2cc43b49 | 834 | lock_ref_node(&fs_prio->node); |
0c56b975 | 835 | tree_add_node(&ft->node, &fs_prio->node); |
d63cd286 | 836 | list_add_flow_table(ft, fs_prio); |
0c56b975 MG |
837 | fs_prio->num_ft++; |
838 | unlock_ref_node(&fs_prio->node); | |
2cc43b49 | 839 | mutex_unlock(&root->chain_lock); |
0c56b975 | 840 | return ft; |
2cc43b49 MG |
841 | destroy_ft: |
842 | mlx5_cmd_destroy_flow_table(root->dev, ft); | |
0c56b975 MG |
843 | free_ft: |
844 | kfree(ft); | |
2cc43b49 MG |
845 | unlock_root: |
846 | mutex_unlock(&root->chain_lock); | |
0c56b975 MG |
847 | return ERR_PTR(err); |
848 | } | |
849 | ||
efdc810b MHY |
850 | struct mlx5_flow_table *mlx5_create_flow_table(struct mlx5_flow_namespace *ns, |
851 | int prio, int max_fte, | |
c9f1b073 HHZ |
852 | u32 level, |
853 | u32 flags) | |
efdc810b | 854 | { |
aaff1bea | 855 | return __mlx5_create_flow_table(ns, FS_FT_OP_MOD_NORMAL, 0, prio, |
c9f1b073 | 856 | max_fte, level, flags); |
efdc810b MHY |
857 | } |
858 | ||
859 | struct mlx5_flow_table *mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns, | |
860 | int prio, int max_fte, | |
861 | u32 level, u16 vport) | |
862 | { | |
aaff1bea | 863 | return __mlx5_create_flow_table(ns, FS_FT_OP_MOD_NORMAL, vport, prio, |
c9f1b073 | 864 | max_fte, level, 0); |
efdc810b MHY |
865 | } |
866 | ||
aaff1bea AH |
867 | struct mlx5_flow_table *mlx5_create_lag_demux_flow_table( |
868 | struct mlx5_flow_namespace *ns, | |
869 | int prio, u32 level) | |
870 | { | |
871 | return __mlx5_create_flow_table(ns, FS_FT_OP_MOD_LAG_DEMUX, 0, prio, 0, | |
c9f1b073 | 872 | level, 0); |
aaff1bea AH |
873 | } |
874 | EXPORT_SYMBOL(mlx5_create_lag_demux_flow_table); | |
875 | ||
f0d22d18 MG |
876 | struct mlx5_flow_table *mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns, |
877 | int prio, | |
878 | int num_flow_table_entries, | |
d63cd286 | 879 | int max_num_groups, |
c9f1b073 HHZ |
880 | u32 level, |
881 | u32 flags) | |
f0d22d18 MG |
882 | { |
883 | struct mlx5_flow_table *ft; | |
884 | ||
885 | if (max_num_groups > num_flow_table_entries) | |
886 | return ERR_PTR(-EINVAL); | |
887 | ||
c9f1b073 | 888 | ft = mlx5_create_flow_table(ns, prio, num_flow_table_entries, level, flags); |
f0d22d18 MG |
889 | if (IS_ERR(ft)) |
890 | return ft; | |
891 | ||
892 | ft->autogroup.active = true; | |
893 | ft->autogroup.required_groups = max_num_groups; | |
894 | ||
895 | return ft; | |
896 | } | |
b217ea25 | 897 | EXPORT_SYMBOL(mlx5_create_auto_grouped_flow_table); |
f0d22d18 MG |
898 | |
899 | /* Flow table should be locked */ | |
900 | static struct mlx5_flow_group *create_flow_group_common(struct mlx5_flow_table *ft, | |
901 | u32 *fg_in, | |
902 | struct list_head | |
903 | *prev_fg, | |
904 | bool is_auto_fg) | |
0c56b975 MG |
905 | { |
906 | struct mlx5_flow_group *fg; | |
907 | struct mlx5_core_dev *dev = get_dev(&ft->node); | |
908 | int err; | |
909 | ||
910 | if (!dev) | |
911 | return ERR_PTR(-ENODEV); | |
912 | ||
913 | fg = alloc_flow_group(fg_in); | |
914 | if (IS_ERR(fg)) | |
915 | return fg; | |
916 | ||
0c56b975 MG |
917 | err = mlx5_cmd_create_flow_group(dev, ft, fg_in, &fg->id); |
918 | if (err) { | |
919 | kfree(fg); | |
0c56b975 MG |
920 | return ERR_PTR(err); |
921 | } | |
f0d22d18 MG |
922 | |
923 | if (ft->autogroup.active) | |
924 | ft->autogroup.num_groups++; | |
0c56b975 | 925 | /* Add node to tree */ |
f0d22d18 | 926 | tree_init_node(&fg->node, !is_auto_fg, del_flow_group); |
0c56b975 MG |
927 | tree_add_node(&fg->node, &ft->node); |
928 | /* Add node to group list */ | |
eccec8da | 929 | list_add(&fg->node.list, prev_fg); |
f0d22d18 MG |
930 | |
931 | return fg; | |
932 | } | |
933 | ||
934 | struct mlx5_flow_group *mlx5_create_flow_group(struct mlx5_flow_table *ft, | |
935 | u32 *fg_in) | |
936 | { | |
937 | struct mlx5_flow_group *fg; | |
938 | ||
939 | if (ft->autogroup.active) | |
940 | return ERR_PTR(-EPERM); | |
941 | ||
942 | lock_ref_node(&ft->node); | |
eccec8da | 943 | fg = create_flow_group_common(ft, fg_in, ft->node.children.prev, false); |
0c56b975 MG |
944 | unlock_ref_node(&ft->node); |
945 | ||
946 | return fg; | |
947 | } | |
948 | ||
949 | static struct mlx5_flow_rule *alloc_rule(struct mlx5_flow_destination *dest) | |
950 | { | |
951 | struct mlx5_flow_rule *rule; | |
952 | ||
953 | rule = kzalloc(sizeof(*rule), GFP_KERNEL); | |
954 | if (!rule) | |
955 | return NULL; | |
956 | ||
b3638e1a | 957 | INIT_LIST_HEAD(&rule->next_ft); |
0c56b975 | 958 | rule->node.type = FS_TYPE_FLOW_DEST; |
60ab4584 AV |
959 | if (dest) |
960 | memcpy(&rule->dest_attr, dest, sizeof(*dest)); | |
0c56b975 MG |
961 | |
962 | return rule; | |
963 | } | |
964 | ||
74491de9 MB |
965 | static struct mlx5_flow_handle *alloc_handle(int num_rules) |
966 | { | |
967 | struct mlx5_flow_handle *handle; | |
968 | ||
969 | handle = kzalloc(sizeof(*handle) + sizeof(handle->rule[0]) * | |
970 | num_rules, GFP_KERNEL); | |
971 | if (!handle) | |
972 | return NULL; | |
973 | ||
974 | handle->num_rules = num_rules; | |
975 | ||
976 | return handle; | |
977 | } | |
978 | ||
979 | static void destroy_flow_handle(struct fs_fte *fte, | |
980 | struct mlx5_flow_handle *handle, | |
981 | struct mlx5_flow_destination *dest, | |
982 | int i) | |
983 | { | |
984 | for (; --i >= 0;) { | |
985 | if (atomic_dec_and_test(&handle->rule[i]->node.refcount)) { | |
986 | fte->dests_size--; | |
987 | list_del(&handle->rule[i]->node.list); | |
988 | kfree(handle->rule[i]); | |
989 | } | |
990 | } | |
991 | kfree(handle); | |
992 | } | |
993 | ||
994 | static struct mlx5_flow_handle * | |
995 | create_flow_handle(struct fs_fte *fte, | |
996 | struct mlx5_flow_destination *dest, | |
997 | int dest_num, | |
998 | int *modify_mask, | |
999 | bool *new_rule) | |
1000 | { | |
1001 | struct mlx5_flow_handle *handle; | |
1002 | struct mlx5_flow_rule *rule = NULL; | |
1003 | static int count = BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_FLOW_COUNTERS); | |
1004 | static int dst = BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_DESTINATION_LIST); | |
1005 | int type; | |
1006 | int i = 0; | |
1007 | ||
1008 | handle = alloc_handle((dest_num) ? dest_num : 1); | |
1009 | if (!handle) | |
1010 | return ERR_PTR(-ENOMEM); | |
1011 | ||
1012 | do { | |
1013 | if (dest) { | |
1014 | rule = find_flow_rule(fte, dest + i); | |
1015 | if (rule) { | |
1016 | atomic_inc(&rule->node.refcount); | |
1017 | goto rule_found; | |
1018 | } | |
1019 | } | |
1020 | ||
1021 | *new_rule = true; | |
1022 | rule = alloc_rule(dest + i); | |
1023 | if (!rule) | |
1024 | goto free_rules; | |
1025 | ||
1026 | /* Add dest to dests list- we need flow tables to be in the | |
1027 | * end of the list for forward to next prio rules. | |
1028 | */ | |
1029 | tree_init_node(&rule->node, 1, del_rule); | |
1030 | if (dest && | |
1031 | dest[i].type != MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE) | |
1032 | list_add(&rule->node.list, &fte->node.children); | |
1033 | else | |
1034 | list_add_tail(&rule->node.list, &fte->node.children); | |
1035 | if (dest) { | |
1036 | fte->dests_size++; | |
1037 | ||
1038 | type = dest[i].type == | |
1039 | MLX5_FLOW_DESTINATION_TYPE_COUNTER; | |
1040 | *modify_mask |= type ? count : dst; | |
1041 | } | |
1042 | rule_found: | |
1043 | handle->rule[i] = rule; | |
1044 | } while (++i < dest_num); | |
1045 | ||
1046 | return handle; | |
1047 | ||
1048 | free_rules: | |
1049 | destroy_flow_handle(fte, handle, dest, i); | |
1050 | return ERR_PTR(-ENOMEM); | |
1051 | } | |
1052 | ||
0c56b975 | 1053 | /* fte should not be deleted while calling this function */ |
74491de9 MB |
1054 | static struct mlx5_flow_handle * |
1055 | add_rule_fte(struct fs_fte *fte, | |
1056 | struct mlx5_flow_group *fg, | |
1057 | struct mlx5_flow_destination *dest, | |
1058 | int dest_num, | |
1059 | bool update_action) | |
0c56b975 | 1060 | { |
74491de9 | 1061 | struct mlx5_flow_handle *handle; |
0c56b975 | 1062 | struct mlx5_flow_table *ft; |
bd5251db | 1063 | int modify_mask = 0; |
0c56b975 | 1064 | int err; |
74491de9 | 1065 | bool new_rule = false; |
0c56b975 | 1066 | |
74491de9 MB |
1067 | handle = create_flow_handle(fte, dest, dest_num, &modify_mask, |
1068 | &new_rule); | |
1069 | if (IS_ERR(handle) || !new_rule) | |
1070 | goto out; | |
bd5251db | 1071 | |
a6224985 MB |
1072 | if (update_action) |
1073 | modify_mask |= BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_ACTION); | |
bd5251db | 1074 | |
0c56b975 | 1075 | fs_get_obj(ft, fg->node.parent); |
0501fc47 | 1076 | if (!(fte->status & FS_FTE_STATUS_EXISTING)) |
0c56b975 MG |
1077 | err = mlx5_cmd_create_fte(get_dev(&ft->node), |
1078 | ft, fg->id, fte); | |
1079 | else | |
1080 | err = mlx5_cmd_update_fte(get_dev(&ft->node), | |
bd5251db | 1081 | ft, fg->id, modify_mask, fte); |
0c56b975 | 1082 | if (err) |
74491de9 | 1083 | goto free_handle; |
0c56b975 MG |
1084 | |
1085 | fte->status |= FS_FTE_STATUS_EXISTING; | |
1086 | ||
74491de9 MB |
1087 | out: |
1088 | return handle; | |
0c56b975 | 1089 | |
74491de9 MB |
1090 | free_handle: |
1091 | destroy_flow_handle(fte, handle, dest, handle->num_rules); | |
0c56b975 MG |
1092 | return ERR_PTR(err); |
1093 | } | |
1094 | ||
1095 | /* Assumed fg is locked */ | |
1096 | static unsigned int get_free_fte_index(struct mlx5_flow_group *fg, | |
1097 | struct list_head **prev) | |
1098 | { | |
1099 | struct fs_fte *fte; | |
1100 | unsigned int start = fg->start_index; | |
1101 | ||
1102 | if (prev) | |
1103 | *prev = &fg->node.children; | |
1104 | ||
1105 | /* assumed list is sorted by index */ | |
1106 | fs_for_each_fte(fte, fg) { | |
1107 | if (fte->index != start) | |
1108 | return start; | |
1109 | start++; | |
1110 | if (prev) | |
1111 | *prev = &fte->node.list; | |
1112 | } | |
1113 | ||
1114 | return start; | |
1115 | } | |
1116 | ||
1117 | /* prev is output, prev->next = new_fte */ | |
1118 | static struct fs_fte *create_fte(struct mlx5_flow_group *fg, | |
1119 | u32 *match_value, | |
66958ed9 | 1120 | struct mlx5_flow_act *flow_act, |
0c56b975 MG |
1121 | struct list_head **prev) |
1122 | { | |
1123 | struct fs_fte *fte; | |
1124 | int index; | |
1125 | ||
1126 | index = get_free_fte_index(fg, prev); | |
66958ed9 | 1127 | fte = alloc_fte(flow_act, match_value, index); |
0c56b975 MG |
1128 | if (IS_ERR(fte)) |
1129 | return fte; | |
1130 | ||
1131 | return fte; | |
1132 | } | |
1133 | ||
f0d22d18 MG |
1134 | static struct mlx5_flow_group *create_autogroup(struct mlx5_flow_table *ft, |
1135 | u8 match_criteria_enable, | |
1136 | u32 *match_criteria) | |
1137 | { | |
1138 | int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); | |
eccec8da | 1139 | struct list_head *prev = ft->node.children.prev; |
f0d22d18 MG |
1140 | unsigned int candidate_index = 0; |
1141 | struct mlx5_flow_group *fg; | |
1142 | void *match_criteria_addr; | |
1143 | unsigned int group_size = 0; | |
1144 | u32 *in; | |
1145 | ||
1146 | if (!ft->autogroup.active) | |
1147 | return ERR_PTR(-ENOENT); | |
1148 | ||
1149 | in = mlx5_vzalloc(inlen); | |
1150 | if (!in) | |
1151 | return ERR_PTR(-ENOMEM); | |
1152 | ||
1153 | if (ft->autogroup.num_groups < ft->autogroup.required_groups) | |
1154 | /* We save place for flow groups in addition to max types */ | |
1155 | group_size = ft->max_fte / (ft->autogroup.required_groups + 1); | |
1156 | ||
1157 | /* ft->max_fte == ft->autogroup.max_types */ | |
1158 | if (group_size == 0) | |
1159 | group_size = 1; | |
1160 | ||
1161 | /* sorted by start_index */ | |
1162 | fs_for_each_fg(fg, ft) { | |
1163 | if (candidate_index + group_size > fg->start_index) | |
1164 | candidate_index = fg->start_index + fg->max_ftes; | |
1165 | else | |
1166 | break; | |
1167 | prev = &fg->node.list; | |
1168 | } | |
1169 | ||
1170 | if (candidate_index + group_size > ft->max_fte) { | |
1171 | fg = ERR_PTR(-ENOSPC); | |
1172 | goto out; | |
1173 | } | |
1174 | ||
1175 | MLX5_SET(create_flow_group_in, in, match_criteria_enable, | |
1176 | match_criteria_enable); | |
1177 | MLX5_SET(create_flow_group_in, in, start_flow_index, candidate_index); | |
1178 | MLX5_SET(create_flow_group_in, in, end_flow_index, candidate_index + | |
1179 | group_size - 1); | |
1180 | match_criteria_addr = MLX5_ADDR_OF(create_flow_group_in, | |
1181 | in, match_criteria); | |
1182 | memcpy(match_criteria_addr, match_criteria, | |
1183 | MLX5_ST_SZ_BYTES(fte_match_param)); | |
1184 | ||
1185 | fg = create_flow_group_common(ft, in, prev, true); | |
1186 | out: | |
1187 | kvfree(in); | |
1188 | return fg; | |
1189 | } | |
1190 | ||
814fb875 MB |
1191 | static bool mlx5_flow_dests_cmp(struct mlx5_flow_destination *d1, |
1192 | struct mlx5_flow_destination *d2) | |
1193 | { | |
1194 | if (d1->type == d2->type) { | |
1195 | if ((d1->type == MLX5_FLOW_DESTINATION_TYPE_VPORT && | |
1196 | d1->vport_num == d2->vport_num) || | |
1197 | (d1->type == MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE && | |
1198 | d1->ft == d2->ft) || | |
1199 | (d1->type == MLX5_FLOW_DESTINATION_TYPE_TIR && | |
1200 | d1->tir_num == d2->tir_num)) | |
1201 | return true; | |
1202 | } | |
1203 | ||
1204 | return false; | |
1205 | } | |
1206 | ||
b3638e1a MG |
1207 | static struct mlx5_flow_rule *find_flow_rule(struct fs_fte *fte, |
1208 | struct mlx5_flow_destination *dest) | |
1209 | { | |
1210 | struct mlx5_flow_rule *rule; | |
1211 | ||
1212 | list_for_each_entry(rule, &fte->node.children, node.list) { | |
814fb875 MB |
1213 | if (mlx5_flow_dests_cmp(&rule->dest_attr, dest)) |
1214 | return rule; | |
b3638e1a MG |
1215 | } |
1216 | return NULL; | |
1217 | } | |
1218 | ||
74491de9 MB |
1219 | static struct mlx5_flow_handle *add_rule_fg(struct mlx5_flow_group *fg, |
1220 | u32 *match_value, | |
66958ed9 | 1221 | struct mlx5_flow_act *flow_act, |
74491de9 MB |
1222 | struct mlx5_flow_destination *dest, |
1223 | int dest_num) | |
0c56b975 | 1224 | { |
74491de9 | 1225 | struct mlx5_flow_handle *handle; |
0c56b975 MG |
1226 | struct mlx5_flow_table *ft; |
1227 | struct list_head *prev; | |
74491de9 MB |
1228 | struct fs_fte *fte; |
1229 | int i; | |
0c56b975 | 1230 | |
f0d22d18 | 1231 | nested_lock_ref_node(&fg->node, FS_MUTEX_PARENT); |
0c56b975 | 1232 | fs_for_each_fte(fte, fg) { |
f0d22d18 | 1233 | nested_lock_ref_node(&fte->node, FS_MUTEX_CHILD); |
0c56b975 | 1234 | if (compare_match_value(&fg->mask, match_value, &fte->val) && |
66958ed9 HHZ |
1235 | (flow_act->action & fte->action) && |
1236 | flow_act->flow_tag == fte->flow_tag) { | |
a6224985 MB |
1237 | int old_action = fte->action; |
1238 | ||
66958ed9 | 1239 | fte->action |= flow_act->action; |
74491de9 | 1240 | handle = add_rule_fte(fte, fg, dest, dest_num, |
66958ed9 | 1241 | old_action != flow_act->action); |
74491de9 | 1242 | if (IS_ERR(handle)) { |
a6224985 | 1243 | fte->action = old_action; |
0fd758d6 | 1244 | goto unlock_fte; |
a6224985 | 1245 | } else { |
74491de9 | 1246 | goto add_rules; |
b3638e1a | 1247 | } |
0c56b975 MG |
1248 | } |
1249 | unlock_ref_node(&fte->node); | |
1250 | } | |
1251 | fs_get_obj(ft, fg->node.parent); | |
1252 | if (fg->num_ftes >= fg->max_ftes) { | |
74491de9 | 1253 | handle = ERR_PTR(-ENOSPC); |
0c56b975 MG |
1254 | goto unlock_fg; |
1255 | } | |
1256 | ||
66958ed9 | 1257 | fte = create_fte(fg, match_value, flow_act, &prev); |
0c56b975 | 1258 | if (IS_ERR(fte)) { |
74491de9 | 1259 | handle = (void *)fte; |
0c56b975 MG |
1260 | goto unlock_fg; |
1261 | } | |
1262 | tree_init_node(&fte->node, 0, del_fte); | |
0fd758d6 | 1263 | nested_lock_ref_node(&fte->node, FS_MUTEX_CHILD); |
74491de9 MB |
1264 | handle = add_rule_fte(fte, fg, dest, dest_num, false); |
1265 | if (IS_ERR(handle)) { | |
9b8c5142 | 1266 | unlock_ref_node(&fte->node); |
0c56b975 MG |
1267 | kfree(fte); |
1268 | goto unlock_fg; | |
1269 | } | |
1270 | ||
1271 | fg->num_ftes++; | |
1272 | ||
1273 | tree_add_node(&fte->node, &fg->node); | |
1274 | list_add(&fte->node.list, prev); | |
74491de9 MB |
1275 | add_rules: |
1276 | for (i = 0; i < handle->num_rules; i++) { | |
1277 | if (atomic_read(&handle->rule[i]->node.refcount) == 1) | |
1278 | tree_add_node(&handle->rule[i]->node, &fte->node); | |
1279 | } | |
0fd758d6 MB |
1280 | unlock_fte: |
1281 | unlock_ref_node(&fte->node); | |
0c56b975 MG |
1282 | unlock_fg: |
1283 | unlock_ref_node(&fg->node); | |
74491de9 | 1284 | return handle; |
0c56b975 MG |
1285 | } |
1286 | ||
74491de9 | 1287 | struct mlx5_fc *mlx5_flow_rule_counter(struct mlx5_flow_handle *handle) |
bd5251db AV |
1288 | { |
1289 | struct mlx5_flow_rule *dst; | |
1290 | struct fs_fte *fte; | |
1291 | ||
74491de9 | 1292 | fs_get_obj(fte, handle->rule[0]->node.parent); |
bd5251db AV |
1293 | |
1294 | fs_for_each_dst(dst, fte) { | |
1295 | if (dst->dest_attr.type == MLX5_FLOW_DESTINATION_TYPE_COUNTER) | |
1296 | return dst->dest_attr.counter; | |
1297 | } | |
1298 | ||
1299 | return NULL; | |
1300 | } | |
1301 | ||
1302 | static bool counter_is_valid(struct mlx5_fc *counter, u32 action) | |
1303 | { | |
1304 | if (!(action & MLX5_FLOW_CONTEXT_ACTION_COUNT)) | |
1305 | return !counter; | |
1306 | ||
1307 | if (!counter) | |
1308 | return false; | |
1309 | ||
ae058314 | 1310 | return (action & (MLX5_FLOW_CONTEXT_ACTION_DROP | |
eafa6abd | 1311 | MLX5_FLOW_CONTEXT_ACTION_FWD_DEST)); |
bd5251db AV |
1312 | } |
1313 | ||
d63cd286 MG |
1314 | static bool dest_is_valid(struct mlx5_flow_destination *dest, |
1315 | u32 action, | |
1316 | struct mlx5_flow_table *ft) | |
1317 | { | |
bd5251db AV |
1318 | if (dest && (dest->type == MLX5_FLOW_DESTINATION_TYPE_COUNTER)) |
1319 | return counter_is_valid(dest->counter, action); | |
1320 | ||
d63cd286 MG |
1321 | if (!(action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST)) |
1322 | return true; | |
1323 | ||
1324 | if (!dest || ((dest->type == | |
1325 | MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE) && | |
1326 | (dest->ft->level <= ft->level))) | |
1327 | return false; | |
1328 | return true; | |
1329 | } | |
1330 | ||
74491de9 MB |
1331 | static struct mlx5_flow_handle * |
1332 | _mlx5_add_flow_rules(struct mlx5_flow_table *ft, | |
1333 | struct mlx5_flow_spec *spec, | |
66958ed9 | 1334 | struct mlx5_flow_act *flow_act, |
74491de9 MB |
1335 | struct mlx5_flow_destination *dest, |
1336 | int dest_num) | |
66958ed9 | 1337 | |
0c56b975 MG |
1338 | { |
1339 | struct mlx5_flow_group *g; | |
74491de9 MB |
1340 | struct mlx5_flow_handle *rule; |
1341 | int i; | |
0c56b975 | 1342 | |
74491de9 | 1343 | for (i = 0; i < dest_num; i++) { |
66958ed9 | 1344 | if (!dest_is_valid(&dest[i], flow_act->action, ft)) |
74491de9 MB |
1345 | return ERR_PTR(-EINVAL); |
1346 | } | |
60ab4584 | 1347 | |
f0d22d18 | 1348 | nested_lock_ref_node(&ft->node, FS_MUTEX_GRANDPARENT); |
0c56b975 MG |
1349 | fs_for_each_fg(g, ft) |
1350 | if (compare_match_criteria(g->mask.match_criteria_enable, | |
c5bb1730 | 1351 | spec->match_criteria_enable, |
0c56b975 | 1352 | g->mask.match_criteria, |
c5bb1730 MG |
1353 | spec->match_criteria)) { |
1354 | rule = add_rule_fg(g, spec->match_value, | |
66958ed9 | 1355 | flow_act, dest, dest_num); |
f0d22d18 MG |
1356 | if (!IS_ERR(rule) || PTR_ERR(rule) != -ENOSPC) |
1357 | goto unlock; | |
0c56b975 | 1358 | } |
f0d22d18 | 1359 | |
c5bb1730 MG |
1360 | g = create_autogroup(ft, spec->match_criteria_enable, |
1361 | spec->match_criteria); | |
c3f9bf62 MG |
1362 | if (IS_ERR(g)) { |
1363 | rule = (void *)g; | |
1364 | goto unlock; | |
1365 | } | |
1366 | ||
66958ed9 | 1367 | rule = add_rule_fg(g, spec->match_value, flow_act, dest, dest_num); |
c3f9bf62 MG |
1368 | if (IS_ERR(rule)) { |
1369 | /* Remove assumes refcount > 0 and autogroup creates a group | |
1370 | * with a refcount = 0. | |
1371 | */ | |
1372 | unlock_ref_node(&ft->node); | |
1373 | tree_get_node(&g->node); | |
1374 | tree_remove_node(&g->node); | |
1375 | return rule; | |
1376 | } | |
f0d22d18 | 1377 | unlock: |
0c56b975 | 1378 | unlock_ref_node(&ft->node); |
0c56b975 MG |
1379 | return rule; |
1380 | } | |
b3638e1a MG |
1381 | |
1382 | static bool fwd_next_prio_supported(struct mlx5_flow_table *ft) | |
1383 | { | |
1384 | return ((ft->type == FS_FT_NIC_RX) && | |
1385 | (MLX5_CAP_FLOWTABLE(get_dev(&ft->node), nic_rx_multi_path_tirs))); | |
1386 | } | |
1387 | ||
74491de9 MB |
1388 | struct mlx5_flow_handle * |
1389 | mlx5_add_flow_rules(struct mlx5_flow_table *ft, | |
1390 | struct mlx5_flow_spec *spec, | |
66958ed9 | 1391 | struct mlx5_flow_act *flow_act, |
74491de9 MB |
1392 | struct mlx5_flow_destination *dest, |
1393 | int dest_num) | |
b3638e1a MG |
1394 | { |
1395 | struct mlx5_flow_root_namespace *root = find_root(&ft->node); | |
1396 | struct mlx5_flow_destination gen_dest; | |
1397 | struct mlx5_flow_table *next_ft = NULL; | |
74491de9 | 1398 | struct mlx5_flow_handle *handle = NULL; |
66958ed9 | 1399 | u32 sw_action = flow_act->action; |
b3638e1a MG |
1400 | struct fs_prio *prio; |
1401 | ||
1402 | fs_get_obj(prio, ft->node.parent); | |
66958ed9 | 1403 | if (flow_act->action == MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO) { |
b3638e1a MG |
1404 | if (!fwd_next_prio_supported(ft)) |
1405 | return ERR_PTR(-EOPNOTSUPP); | |
1406 | if (dest) | |
1407 | return ERR_PTR(-EINVAL); | |
1408 | mutex_lock(&root->chain_lock); | |
1409 | next_ft = find_next_chained_ft(prio); | |
1410 | if (next_ft) { | |
1411 | gen_dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; | |
1412 | gen_dest.ft = next_ft; | |
1413 | dest = &gen_dest; | |
74491de9 | 1414 | dest_num = 1; |
66958ed9 | 1415 | flow_act->action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; |
b3638e1a MG |
1416 | } else { |
1417 | mutex_unlock(&root->chain_lock); | |
1418 | return ERR_PTR(-EOPNOTSUPP); | |
1419 | } | |
1420 | } | |
1421 | ||
66958ed9 | 1422 | handle = _mlx5_add_flow_rules(ft, spec, flow_act, dest, dest_num); |
b3638e1a MG |
1423 | |
1424 | if (sw_action == MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO) { | |
74491de9 MB |
1425 | if (!IS_ERR_OR_NULL(handle) && |
1426 | (list_empty(&handle->rule[0]->next_ft))) { | |
b3638e1a | 1427 | mutex_lock(&next_ft->lock); |
74491de9 MB |
1428 | list_add(&handle->rule[0]->next_ft, |
1429 | &next_ft->fwd_rules); | |
b3638e1a | 1430 | mutex_unlock(&next_ft->lock); |
74491de9 | 1431 | handle->rule[0]->sw_action = MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO; |
b3638e1a MG |
1432 | } |
1433 | mutex_unlock(&root->chain_lock); | |
1434 | } | |
74491de9 | 1435 | return handle; |
b3638e1a | 1436 | } |
74491de9 | 1437 | EXPORT_SYMBOL(mlx5_add_flow_rules); |
0c56b975 | 1438 | |
74491de9 | 1439 | void mlx5_del_flow_rules(struct mlx5_flow_handle *handle) |
0c56b975 | 1440 | { |
74491de9 MB |
1441 | int i; |
1442 | ||
1443 | for (i = handle->num_rules - 1; i >= 0; i--) | |
1444 | tree_remove_node(&handle->rule[i]->node); | |
1445 | kfree(handle); | |
0c56b975 | 1446 | } |
74491de9 | 1447 | EXPORT_SYMBOL(mlx5_del_flow_rules); |
0c56b975 | 1448 | |
2cc43b49 MG |
1449 | /* Assuming prio->node.children(flow tables) is sorted by level */ |
1450 | static struct mlx5_flow_table *find_next_ft(struct mlx5_flow_table *ft) | |
1451 | { | |
1452 | struct fs_prio *prio; | |
1453 | ||
1454 | fs_get_obj(prio, ft->node.parent); | |
1455 | ||
1456 | if (!list_is_last(&ft->node.list, &prio->node.children)) | |
1457 | return list_next_entry(ft, node.list); | |
1458 | return find_next_chained_ft(prio); | |
1459 | } | |
1460 | ||
1461 | static int update_root_ft_destroy(struct mlx5_flow_table *ft) | |
1462 | { | |
1463 | struct mlx5_flow_root_namespace *root = find_root(&ft->node); | |
1464 | struct mlx5_flow_table *new_root_ft = NULL; | |
1465 | ||
1466 | if (root->root_ft != ft) | |
1467 | return 0; | |
1468 | ||
1469 | new_root_ft = find_next_ft(ft); | |
1470 | if (new_root_ft) { | |
1471 | int err = mlx5_cmd_update_root_ft(root->dev, new_root_ft); | |
1472 | ||
1473 | if (err) { | |
1474 | mlx5_core_warn(root->dev, "Update root flow table of id=%u failed\n", | |
1475 | ft->id); | |
1476 | return err; | |
1477 | } | |
2cc43b49 | 1478 | } |
2fee37a4 | 1479 | root->root_ft = new_root_ft; |
2cc43b49 MG |
1480 | return 0; |
1481 | } | |
1482 | ||
f90edfd2 MG |
1483 | /* Connect flow table from previous priority to |
1484 | * the next flow table. | |
1485 | */ | |
1486 | static int disconnect_flow_table(struct mlx5_flow_table *ft) | |
1487 | { | |
1488 | struct mlx5_core_dev *dev = get_dev(&ft->node); | |
1489 | struct mlx5_flow_table *next_ft; | |
1490 | struct fs_prio *prio; | |
1491 | int err = 0; | |
1492 | ||
1493 | err = update_root_ft_destroy(ft); | |
1494 | if (err) | |
1495 | return err; | |
1496 | ||
1497 | fs_get_obj(prio, ft->node.parent); | |
1498 | if (!(list_first_entry(&prio->node.children, | |
1499 | struct mlx5_flow_table, | |
1500 | node.list) == ft)) | |
1501 | return 0; | |
1502 | ||
1503 | next_ft = find_next_chained_ft(prio); | |
b3638e1a MG |
1504 | err = connect_fwd_rules(dev, next_ft, ft); |
1505 | if (err) | |
1506 | return err; | |
1507 | ||
f90edfd2 MG |
1508 | err = connect_prev_fts(dev, next_ft, prio); |
1509 | if (err) | |
1510 | mlx5_core_warn(dev, "Failed to disconnect flow table %d\n", | |
1511 | ft->id); | |
1512 | return err; | |
1513 | } | |
1514 | ||
86d722ad | 1515 | int mlx5_destroy_flow_table(struct mlx5_flow_table *ft) |
0c56b975 | 1516 | { |
2cc43b49 MG |
1517 | struct mlx5_flow_root_namespace *root = find_root(&ft->node); |
1518 | int err = 0; | |
1519 | ||
1520 | mutex_lock(&root->chain_lock); | |
f90edfd2 | 1521 | err = disconnect_flow_table(ft); |
2cc43b49 MG |
1522 | if (err) { |
1523 | mutex_unlock(&root->chain_lock); | |
1524 | return err; | |
1525 | } | |
0c56b975 MG |
1526 | if (tree_remove_node(&ft->node)) |
1527 | mlx5_core_warn(get_dev(&ft->node), "Flow table %d wasn't destroyed, refcount > 1\n", | |
1528 | ft->id); | |
2cc43b49 | 1529 | mutex_unlock(&root->chain_lock); |
0c56b975 | 1530 | |
2cc43b49 | 1531 | return err; |
0c56b975 | 1532 | } |
b217ea25 | 1533 | EXPORT_SYMBOL(mlx5_destroy_flow_table); |
0c56b975 | 1534 | |
86d722ad | 1535 | void mlx5_destroy_flow_group(struct mlx5_flow_group *fg) |
0c56b975 MG |
1536 | { |
1537 | if (tree_remove_node(&fg->node)) | |
1538 | mlx5_core_warn(get_dev(&fg->node), "Flow group %d wasn't destroyed, refcount > 1\n", | |
1539 | fg->id); | |
1540 | } | |
25302363 | 1541 | |
86d722ad MG |
1542 | struct mlx5_flow_namespace *mlx5_get_flow_namespace(struct mlx5_core_dev *dev, |
1543 | enum mlx5_flow_namespace_type type) | |
25302363 | 1544 | { |
fba53f7b MG |
1545 | struct mlx5_flow_steering *steering = dev->priv.steering; |
1546 | struct mlx5_flow_root_namespace *root_ns; | |
25302363 | 1547 | int prio; |
78228cbd | 1548 | struct fs_prio *fs_prio; |
25302363 MG |
1549 | struct mlx5_flow_namespace *ns; |
1550 | ||
fba53f7b | 1551 | if (!steering) |
25302363 MG |
1552 | return NULL; |
1553 | ||
1554 | switch (type) { | |
4cbdd30e | 1555 | case MLX5_FLOW_NAMESPACE_BYPASS: |
3e75d4eb | 1556 | case MLX5_FLOW_NAMESPACE_LAG: |
acbc2004 | 1557 | case MLX5_FLOW_NAMESPACE_OFFLOADS: |
6dc6071c | 1558 | case MLX5_FLOW_NAMESPACE_ETHTOOL: |
25302363 | 1559 | case MLX5_FLOW_NAMESPACE_KERNEL: |
4cbdd30e | 1560 | case MLX5_FLOW_NAMESPACE_LEFTOVERS: |
153fefbf | 1561 | case MLX5_FLOW_NAMESPACE_ANCHOR: |
4cbdd30e | 1562 | prio = type; |
25302363 MG |
1563 | break; |
1564 | case MLX5_FLOW_NAMESPACE_FDB: | |
fba53f7b MG |
1565 | if (steering->fdb_root_ns) |
1566 | return &steering->fdb_root_ns->ns; | |
25302363 MG |
1567 | else |
1568 | return NULL; | |
efdc810b | 1569 | case MLX5_FLOW_NAMESPACE_ESW_EGRESS: |
fba53f7b MG |
1570 | if (steering->esw_egress_root_ns) |
1571 | return &steering->esw_egress_root_ns->ns; | |
efdc810b MHY |
1572 | else |
1573 | return NULL; | |
1574 | case MLX5_FLOW_NAMESPACE_ESW_INGRESS: | |
fba53f7b MG |
1575 | if (steering->esw_ingress_root_ns) |
1576 | return &steering->esw_ingress_root_ns->ns; | |
efdc810b MHY |
1577 | else |
1578 | return NULL; | |
87d22483 MG |
1579 | case MLX5_FLOW_NAMESPACE_SNIFFER_RX: |
1580 | if (steering->sniffer_rx_root_ns) | |
1581 | return &steering->sniffer_rx_root_ns->ns; | |
1582 | else | |
1583 | return NULL; | |
1584 | case MLX5_FLOW_NAMESPACE_SNIFFER_TX: | |
1585 | if (steering->sniffer_tx_root_ns) | |
1586 | return &steering->sniffer_tx_root_ns->ns; | |
1587 | else | |
1588 | return NULL; | |
25302363 MG |
1589 | default: |
1590 | return NULL; | |
1591 | } | |
1592 | ||
fba53f7b MG |
1593 | root_ns = steering->root_ns; |
1594 | if (!root_ns) | |
1595 | return NULL; | |
1596 | ||
25302363 MG |
1597 | fs_prio = find_prio(&root_ns->ns, prio); |
1598 | if (!fs_prio) | |
1599 | return NULL; | |
1600 | ||
1601 | ns = list_first_entry(&fs_prio->node.children, | |
1602 | typeof(*ns), | |
1603 | node.list); | |
1604 | ||
1605 | return ns; | |
1606 | } | |
b217ea25 | 1607 | EXPORT_SYMBOL(mlx5_get_flow_namespace); |
25302363 MG |
1608 | |
1609 | static struct fs_prio *fs_create_prio(struct mlx5_flow_namespace *ns, | |
a257b94a | 1610 | unsigned int prio, int num_levels) |
25302363 MG |
1611 | { |
1612 | struct fs_prio *fs_prio; | |
1613 | ||
1614 | fs_prio = kzalloc(sizeof(*fs_prio), GFP_KERNEL); | |
1615 | if (!fs_prio) | |
1616 | return ERR_PTR(-ENOMEM); | |
1617 | ||
1618 | fs_prio->node.type = FS_TYPE_PRIO; | |
1619 | tree_init_node(&fs_prio->node, 1, NULL); | |
1620 | tree_add_node(&fs_prio->node, &ns->node); | |
a257b94a | 1621 | fs_prio->num_levels = num_levels; |
25302363 | 1622 | fs_prio->prio = prio; |
25302363 MG |
1623 | list_add_tail(&fs_prio->node.list, &ns->node.children); |
1624 | ||
1625 | return fs_prio; | |
1626 | } | |
1627 | ||
1628 | static struct mlx5_flow_namespace *fs_init_namespace(struct mlx5_flow_namespace | |
1629 | *ns) | |
1630 | { | |
1631 | ns->node.type = FS_TYPE_NAMESPACE; | |
1632 | ||
1633 | return ns; | |
1634 | } | |
1635 | ||
1636 | static struct mlx5_flow_namespace *fs_create_namespace(struct fs_prio *prio) | |
1637 | { | |
1638 | struct mlx5_flow_namespace *ns; | |
1639 | ||
1640 | ns = kzalloc(sizeof(*ns), GFP_KERNEL); | |
1641 | if (!ns) | |
1642 | return ERR_PTR(-ENOMEM); | |
1643 | ||
1644 | fs_init_namespace(ns); | |
1645 | tree_init_node(&ns->node, 1, NULL); | |
1646 | tree_add_node(&ns->node, &prio->node); | |
1647 | list_add_tail(&ns->node.list, &prio->node.children); | |
1648 | ||
1649 | return ns; | |
1650 | } | |
1651 | ||
13de6c10 MG |
1652 | static int create_leaf_prios(struct mlx5_flow_namespace *ns, int prio, |
1653 | struct init_tree_node *prio_metadata) | |
4cbdd30e MG |
1654 | { |
1655 | struct fs_prio *fs_prio; | |
1656 | int i; | |
1657 | ||
1658 | for (i = 0; i < prio_metadata->num_leaf_prios; i++) { | |
13de6c10 | 1659 | fs_prio = fs_create_prio(ns, prio++, prio_metadata->num_levels); |
4cbdd30e MG |
1660 | if (IS_ERR(fs_prio)) |
1661 | return PTR_ERR(fs_prio); | |
1662 | } | |
1663 | return 0; | |
1664 | } | |
1665 | ||
8d40d162 MG |
1666 | #define FLOW_TABLE_BIT_SZ 1 |
1667 | #define GET_FLOW_TABLE_CAP(dev, offset) \ | |
1668 | ((be32_to_cpu(*((__be32 *)(dev->hca_caps_cur[MLX5_CAP_FLOW_TABLE]) + \ | |
1669 | offset / 32)) >> \ | |
1670 | (32 - FLOW_TABLE_BIT_SZ - (offset & 0x1f))) & FLOW_TABLE_BIT_SZ) | |
1671 | static bool has_required_caps(struct mlx5_core_dev *dev, struct node_caps *caps) | |
1672 | { | |
1673 | int i; | |
1674 | ||
1675 | for (i = 0; i < caps->arr_sz; i++) { | |
1676 | if (!GET_FLOW_TABLE_CAP(dev, caps->caps[i])) | |
1677 | return false; | |
1678 | } | |
1679 | return true; | |
1680 | } | |
1681 | ||
fba53f7b | 1682 | static int init_root_tree_recursive(struct mlx5_flow_steering *steering, |
8d40d162 | 1683 | struct init_tree_node *init_node, |
25302363 MG |
1684 | struct fs_node *fs_parent_node, |
1685 | struct init_tree_node *init_parent_node, | |
13de6c10 | 1686 | int prio) |
25302363 | 1687 | { |
fba53f7b | 1688 | int max_ft_level = MLX5_CAP_FLOWTABLE(steering->dev, |
8d40d162 MG |
1689 | flow_table_properties_nic_receive. |
1690 | max_ft_level); | |
25302363 MG |
1691 | struct mlx5_flow_namespace *fs_ns; |
1692 | struct fs_prio *fs_prio; | |
1693 | struct fs_node *base; | |
1694 | int i; | |
1695 | int err; | |
1696 | ||
1697 | if (init_node->type == FS_TYPE_PRIO) { | |
8d40d162 | 1698 | if ((init_node->min_ft_level > max_ft_level) || |
fba53f7b | 1699 | !has_required_caps(steering->dev, &init_node->caps)) |
8d40d162 | 1700 | return 0; |
25302363 MG |
1701 | |
1702 | fs_get_obj(fs_ns, fs_parent_node); | |
4cbdd30e | 1703 | if (init_node->num_leaf_prios) |
13de6c10 MG |
1704 | return create_leaf_prios(fs_ns, prio, init_node); |
1705 | fs_prio = fs_create_prio(fs_ns, prio, init_node->num_levels); | |
25302363 MG |
1706 | if (IS_ERR(fs_prio)) |
1707 | return PTR_ERR(fs_prio); | |
1708 | base = &fs_prio->node; | |
1709 | } else if (init_node->type == FS_TYPE_NAMESPACE) { | |
1710 | fs_get_obj(fs_prio, fs_parent_node); | |
1711 | fs_ns = fs_create_namespace(fs_prio); | |
1712 | if (IS_ERR(fs_ns)) | |
1713 | return PTR_ERR(fs_ns); | |
1714 | base = &fs_ns->node; | |
1715 | } else { | |
1716 | return -EINVAL; | |
1717 | } | |
13de6c10 | 1718 | prio = 0; |
25302363 | 1719 | for (i = 0; i < init_node->ar_size; i++) { |
fba53f7b | 1720 | err = init_root_tree_recursive(steering, &init_node->children[i], |
13de6c10 | 1721 | base, init_node, prio); |
25302363 MG |
1722 | if (err) |
1723 | return err; | |
13de6c10 MG |
1724 | if (init_node->children[i].type == FS_TYPE_PRIO && |
1725 | init_node->children[i].num_leaf_prios) { | |
1726 | prio += init_node->children[i].num_leaf_prios; | |
1727 | } | |
25302363 MG |
1728 | } |
1729 | ||
1730 | return 0; | |
1731 | } | |
1732 | ||
fba53f7b | 1733 | static int init_root_tree(struct mlx5_flow_steering *steering, |
8d40d162 | 1734 | struct init_tree_node *init_node, |
25302363 MG |
1735 | struct fs_node *fs_parent_node) |
1736 | { | |
1737 | int i; | |
1738 | struct mlx5_flow_namespace *fs_ns; | |
1739 | int err; | |
1740 | ||
1741 | fs_get_obj(fs_ns, fs_parent_node); | |
1742 | for (i = 0; i < init_node->ar_size; i++) { | |
fba53f7b | 1743 | err = init_root_tree_recursive(steering, &init_node->children[i], |
25302363 MG |
1744 | &fs_ns->node, |
1745 | init_node, i); | |
1746 | if (err) | |
1747 | return err; | |
1748 | } | |
1749 | return 0; | |
1750 | } | |
1751 | ||
fba53f7b | 1752 | static struct mlx5_flow_root_namespace *create_root_ns(struct mlx5_flow_steering *steering, |
25302363 MG |
1753 | enum fs_flow_table_type |
1754 | table_type) | |
1755 | { | |
1756 | struct mlx5_flow_root_namespace *root_ns; | |
1757 | struct mlx5_flow_namespace *ns; | |
1758 | ||
86d722ad | 1759 | /* Create the root namespace */ |
25302363 MG |
1760 | root_ns = mlx5_vzalloc(sizeof(*root_ns)); |
1761 | if (!root_ns) | |
1762 | return NULL; | |
1763 | ||
fba53f7b | 1764 | root_ns->dev = steering->dev; |
25302363 MG |
1765 | root_ns->table_type = table_type; |
1766 | ||
1767 | ns = &root_ns->ns; | |
1768 | fs_init_namespace(ns); | |
2cc43b49 | 1769 | mutex_init(&root_ns->chain_lock); |
25302363 MG |
1770 | tree_init_node(&ns->node, 1, NULL); |
1771 | tree_add_node(&ns->node, NULL); | |
1772 | ||
1773 | return root_ns; | |
1774 | } | |
1775 | ||
655227ed MG |
1776 | static void set_prio_attrs_in_prio(struct fs_prio *prio, int acc_level); |
1777 | ||
1778 | static int set_prio_attrs_in_ns(struct mlx5_flow_namespace *ns, int acc_level) | |
1779 | { | |
1780 | struct fs_prio *prio; | |
1781 | ||
1782 | fs_for_each_prio(prio, ns) { | |
a257b94a | 1783 | /* This updates prio start_level and num_levels */ |
655227ed | 1784 | set_prio_attrs_in_prio(prio, acc_level); |
a257b94a | 1785 | acc_level += prio->num_levels; |
655227ed MG |
1786 | } |
1787 | return acc_level; | |
1788 | } | |
1789 | ||
1790 | static void set_prio_attrs_in_prio(struct fs_prio *prio, int acc_level) | |
1791 | { | |
1792 | struct mlx5_flow_namespace *ns; | |
1793 | int acc_level_ns = acc_level; | |
1794 | ||
1795 | prio->start_level = acc_level; | |
1796 | fs_for_each_ns(ns, prio) | |
a257b94a | 1797 | /* This updates start_level and num_levels of ns's priority descendants */ |
655227ed | 1798 | acc_level_ns = set_prio_attrs_in_ns(ns, acc_level); |
a257b94a MG |
1799 | if (!prio->num_levels) |
1800 | prio->num_levels = acc_level_ns - prio->start_level; | |
1801 | WARN_ON(prio->num_levels < acc_level_ns - prio->start_level); | |
655227ed MG |
1802 | } |
1803 | ||
1804 | static void set_prio_attrs(struct mlx5_flow_root_namespace *root_ns) | |
1805 | { | |
1806 | struct mlx5_flow_namespace *ns = &root_ns->ns; | |
1807 | struct fs_prio *prio; | |
1808 | int start_level = 0; | |
1809 | ||
1810 | fs_for_each_prio(prio, ns) { | |
1811 | set_prio_attrs_in_prio(prio, start_level); | |
a257b94a | 1812 | start_level += prio->num_levels; |
655227ed MG |
1813 | } |
1814 | } | |
1815 | ||
153fefbf MG |
1816 | #define ANCHOR_PRIO 0 |
1817 | #define ANCHOR_SIZE 1 | |
d63cd286 | 1818 | #define ANCHOR_LEVEL 0 |
fba53f7b | 1819 | static int create_anchor_flow_table(struct mlx5_flow_steering *steering) |
153fefbf MG |
1820 | { |
1821 | struct mlx5_flow_namespace *ns = NULL; | |
1822 | struct mlx5_flow_table *ft; | |
1823 | ||
fba53f7b | 1824 | ns = mlx5_get_flow_namespace(steering->dev, MLX5_FLOW_NAMESPACE_ANCHOR); |
153fefbf MG |
1825 | if (!ns) |
1826 | return -EINVAL; | |
c9f1b073 | 1827 | ft = mlx5_create_flow_table(ns, ANCHOR_PRIO, ANCHOR_SIZE, ANCHOR_LEVEL, 0); |
153fefbf | 1828 | if (IS_ERR(ft)) { |
fba53f7b | 1829 | mlx5_core_err(steering->dev, "Failed to create last anchor flow table"); |
153fefbf MG |
1830 | return PTR_ERR(ft); |
1831 | } | |
1832 | return 0; | |
1833 | } | |
1834 | ||
fba53f7b | 1835 | static int init_root_ns(struct mlx5_flow_steering *steering) |
25302363 | 1836 | { |
25302363 | 1837 | |
fba53f7b | 1838 | steering->root_ns = create_root_ns(steering, FS_FT_NIC_RX); |
42fb18fd | 1839 | if (!steering->root_ns) |
25302363 MG |
1840 | goto cleanup; |
1841 | ||
fba53f7b | 1842 | if (init_root_tree(steering, &root_fs, &steering->root_ns->ns.node)) |
25302363 MG |
1843 | goto cleanup; |
1844 | ||
fba53f7b | 1845 | set_prio_attrs(steering->root_ns); |
655227ed | 1846 | |
fba53f7b | 1847 | if (create_anchor_flow_table(steering)) |
153fefbf MG |
1848 | goto cleanup; |
1849 | ||
25302363 MG |
1850 | return 0; |
1851 | ||
1852 | cleanup: | |
fba53f7b | 1853 | mlx5_cleanup_fs(steering->dev); |
25302363 MG |
1854 | return -ENOMEM; |
1855 | } | |
1856 | ||
0da2d666 | 1857 | static void clean_tree(struct fs_node *node) |
25302363 | 1858 | { |
0da2d666 MG |
1859 | if (node) { |
1860 | struct fs_node *iter; | |
1861 | struct fs_node *temp; | |
25302363 | 1862 | |
0da2d666 MG |
1863 | list_for_each_entry_safe(iter, temp, &node->children, list) |
1864 | clean_tree(iter); | |
1865 | tree_remove_node(node); | |
25302363 | 1866 | } |
153fefbf MG |
1867 | } |
1868 | ||
0da2d666 | 1869 | static void cleanup_root_ns(struct mlx5_flow_root_namespace *root_ns) |
25302363 | 1870 | { |
25302363 MG |
1871 | if (!root_ns) |
1872 | return; | |
1873 | ||
0da2d666 | 1874 | clean_tree(&root_ns->ns.node); |
25302363 MG |
1875 | } |
1876 | ||
1877 | void mlx5_cleanup_fs(struct mlx5_core_dev *dev) | |
1878 | { | |
fba53f7b MG |
1879 | struct mlx5_flow_steering *steering = dev->priv.steering; |
1880 | ||
876d634d MG |
1881 | if (MLX5_CAP_GEN(dev, port_type) != MLX5_CAP_PORT_TYPE_ETH) |
1882 | return; | |
1883 | ||
0da2d666 MG |
1884 | cleanup_root_ns(steering->root_ns); |
1885 | cleanup_root_ns(steering->esw_egress_root_ns); | |
1886 | cleanup_root_ns(steering->esw_ingress_root_ns); | |
1887 | cleanup_root_ns(steering->fdb_root_ns); | |
87d22483 MG |
1888 | cleanup_root_ns(steering->sniffer_rx_root_ns); |
1889 | cleanup_root_ns(steering->sniffer_tx_root_ns); | |
43a335e0 | 1890 | mlx5_cleanup_fc_stats(dev); |
fba53f7b | 1891 | kfree(steering); |
25302363 MG |
1892 | } |
1893 | ||
87d22483 MG |
1894 | static int init_sniffer_tx_root_ns(struct mlx5_flow_steering *steering) |
1895 | { | |
1896 | struct fs_prio *prio; | |
1897 | ||
1898 | steering->sniffer_tx_root_ns = create_root_ns(steering, FS_FT_SNIFFER_TX); | |
1899 | if (!steering->sniffer_tx_root_ns) | |
1900 | return -ENOMEM; | |
1901 | ||
1902 | /* Create single prio */ | |
1903 | prio = fs_create_prio(&steering->sniffer_tx_root_ns->ns, 0, 1); | |
1904 | if (IS_ERR(prio)) { | |
1905 | cleanup_root_ns(steering->sniffer_tx_root_ns); | |
1906 | return PTR_ERR(prio); | |
1907 | } | |
1908 | return 0; | |
1909 | } | |
1910 | ||
1911 | static int init_sniffer_rx_root_ns(struct mlx5_flow_steering *steering) | |
1912 | { | |
1913 | struct fs_prio *prio; | |
1914 | ||
1915 | steering->sniffer_rx_root_ns = create_root_ns(steering, FS_FT_SNIFFER_RX); | |
1916 | if (!steering->sniffer_rx_root_ns) | |
1917 | return -ENOMEM; | |
1918 | ||
1919 | /* Create single prio */ | |
1920 | prio = fs_create_prio(&steering->sniffer_rx_root_ns->ns, 0, 1); | |
1921 | if (IS_ERR(prio)) { | |
1922 | cleanup_root_ns(steering->sniffer_rx_root_ns); | |
1923 | return PTR_ERR(prio); | |
1924 | } | |
1925 | return 0; | |
1926 | } | |
1927 | ||
fba53f7b | 1928 | static int init_fdb_root_ns(struct mlx5_flow_steering *steering) |
25302363 MG |
1929 | { |
1930 | struct fs_prio *prio; | |
1931 | ||
fba53f7b MG |
1932 | steering->fdb_root_ns = create_root_ns(steering, FS_FT_FDB); |
1933 | if (!steering->fdb_root_ns) | |
25302363 MG |
1934 | return -ENOMEM; |
1935 | ||
fba53f7b | 1936 | prio = fs_create_prio(&steering->fdb_root_ns->ns, 0, 1); |
1033665e OG |
1937 | if (IS_ERR(prio)) |
1938 | goto out_err; | |
1939 | ||
1940 | prio = fs_create_prio(&steering->fdb_root_ns->ns, 1, 1); | |
1941 | if (IS_ERR(prio)) | |
1942 | goto out_err; | |
1943 | ||
1944 | set_prio_attrs(steering->fdb_root_ns); | |
1945 | return 0; | |
1946 | ||
1947 | out_err: | |
1948 | cleanup_root_ns(steering->fdb_root_ns); | |
1949 | steering->fdb_root_ns = NULL; | |
1950 | return PTR_ERR(prio); | |
25302363 MG |
1951 | } |
1952 | ||
fba53f7b | 1953 | static int init_ingress_acl_root_ns(struct mlx5_flow_steering *steering) |
efdc810b MHY |
1954 | { |
1955 | struct fs_prio *prio; | |
1956 | ||
fba53f7b MG |
1957 | steering->esw_egress_root_ns = create_root_ns(steering, FS_FT_ESW_EGRESS_ACL); |
1958 | if (!steering->esw_egress_root_ns) | |
efdc810b MHY |
1959 | return -ENOMEM; |
1960 | ||
1961 | /* create 1 prio*/ | |
fba53f7b MG |
1962 | prio = fs_create_prio(&steering->esw_egress_root_ns->ns, 0, |
1963 | MLX5_TOTAL_VPORTS(steering->dev)); | |
44fafdaa | 1964 | return PTR_ERR_OR_ZERO(prio); |
efdc810b MHY |
1965 | } |
1966 | ||
fba53f7b | 1967 | static int init_egress_acl_root_ns(struct mlx5_flow_steering *steering) |
efdc810b MHY |
1968 | { |
1969 | struct fs_prio *prio; | |
1970 | ||
fba53f7b MG |
1971 | steering->esw_ingress_root_ns = create_root_ns(steering, FS_FT_ESW_INGRESS_ACL); |
1972 | if (!steering->esw_ingress_root_ns) | |
efdc810b MHY |
1973 | return -ENOMEM; |
1974 | ||
1975 | /* create 1 prio*/ | |
fba53f7b MG |
1976 | prio = fs_create_prio(&steering->esw_ingress_root_ns->ns, 0, |
1977 | MLX5_TOTAL_VPORTS(steering->dev)); | |
44fafdaa | 1978 | return PTR_ERR_OR_ZERO(prio); |
efdc810b MHY |
1979 | } |
1980 | ||
25302363 MG |
1981 | int mlx5_init_fs(struct mlx5_core_dev *dev) |
1982 | { | |
fba53f7b | 1983 | struct mlx5_flow_steering *steering; |
25302363 MG |
1984 | int err = 0; |
1985 | ||
876d634d MG |
1986 | if (MLX5_CAP_GEN(dev, port_type) != MLX5_CAP_PORT_TYPE_ETH) |
1987 | return 0; | |
1988 | ||
43a335e0 AV |
1989 | err = mlx5_init_fc_stats(dev); |
1990 | if (err) | |
1991 | return err; | |
1992 | ||
fba53f7b MG |
1993 | steering = kzalloc(sizeof(*steering), GFP_KERNEL); |
1994 | if (!steering) | |
1995 | return -ENOMEM; | |
1996 | steering->dev = dev; | |
1997 | dev->priv.steering = steering; | |
1998 | ||
876d634d MG |
1999 | if (MLX5_CAP_GEN(dev, nic_flow_table) && |
2000 | MLX5_CAP_FLOWTABLE_NIC_RX(dev, ft_support)) { | |
fba53f7b | 2001 | err = init_root_ns(steering); |
25302363 | 2002 | if (err) |
43a335e0 | 2003 | goto err; |
25302363 | 2004 | } |
876d634d | 2005 | |
25302363 | 2006 | if (MLX5_CAP_GEN(dev, eswitch_flow_table)) { |
bd02ef8e | 2007 | if (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, ft_support)) { |
fba53f7b | 2008 | err = init_fdb_root_ns(steering); |
bd02ef8e MG |
2009 | if (err) |
2010 | goto err; | |
2011 | } | |
2012 | if (MLX5_CAP_ESW_EGRESS_ACL(dev, ft_support)) { | |
fba53f7b | 2013 | err = init_egress_acl_root_ns(steering); |
bd02ef8e MG |
2014 | if (err) |
2015 | goto err; | |
2016 | } | |
2017 | if (MLX5_CAP_ESW_INGRESS_ACL(dev, ft_support)) { | |
fba53f7b | 2018 | err = init_ingress_acl_root_ns(steering); |
bd02ef8e MG |
2019 | if (err) |
2020 | goto err; | |
2021 | } | |
25302363 MG |
2022 | } |
2023 | ||
87d22483 MG |
2024 | if (MLX5_CAP_FLOWTABLE_SNIFFER_RX(dev, ft_support)) { |
2025 | err = init_sniffer_rx_root_ns(steering); | |
2026 | if (err) | |
2027 | goto err; | |
2028 | } | |
2029 | ||
2030 | if (MLX5_CAP_FLOWTABLE_SNIFFER_TX(dev, ft_support)) { | |
2031 | err = init_sniffer_tx_root_ns(steering); | |
2032 | if (err) | |
2033 | goto err; | |
2034 | } | |
2035 | ||
efdc810b MHY |
2036 | return 0; |
2037 | err: | |
2038 | mlx5_cleanup_fs(dev); | |
25302363 MG |
2039 | return err; |
2040 | } |