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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> | |
0efc8562 | 35 | #include <linux/mlx5/eswitch.h> |
de8575e0 MG |
36 | |
37 | #include "mlx5_core.h" | |
38 | #include "fs_core.h" | |
0c56b975 | 39 | #include "fs_cmd.h" |
4c03e69a | 40 | #include "diag/fs_tracepoint.h" |
5f418378 | 41 | #include "accel/ipsec.h" |
05564d0a | 42 | #include "fpga/ipsec.h" |
328edb49 | 43 | #include "eswitch.h" |
0c56b975 | 44 | |
25302363 MG |
45 | #define INIT_TREE_NODE_ARRAY_SIZE(...) (sizeof((struct init_tree_node[]){__VA_ARGS__}) /\ |
46 | sizeof(struct init_tree_node)) | |
47 | ||
a257b94a | 48 | #define ADD_PRIO(num_prios_val, min_level_val, num_levels_val, caps_val,\ |
8d40d162 | 49 | ...) {.type = FS_TYPE_PRIO,\ |
25302363 | 50 | .min_ft_level = min_level_val,\ |
a257b94a | 51 | .num_levels = num_levels_val,\ |
4cbdd30e | 52 | .num_leaf_prios = num_prios_val,\ |
8d40d162 | 53 | .caps = caps_val,\ |
25302363 MG |
54 | .children = (struct init_tree_node[]) {__VA_ARGS__},\ |
55 | .ar_size = INIT_TREE_NODE_ARRAY_SIZE(__VA_ARGS__) \ | |
56 | } | |
57 | ||
a257b94a MG |
58 | #define ADD_MULTIPLE_PRIO(num_prios_val, num_levels_val, ...)\ |
59 | ADD_PRIO(num_prios_val, 0, num_levels_val, {},\ | |
4cbdd30e | 60 | __VA_ARGS__)\ |
25302363 MG |
61 | |
62 | #define ADD_NS(...) {.type = FS_TYPE_NAMESPACE,\ | |
63 | .children = (struct init_tree_node[]) {__VA_ARGS__},\ | |
64 | .ar_size = INIT_TREE_NODE_ARRAY_SIZE(__VA_ARGS__) \ | |
65 | } | |
66 | ||
8d40d162 MG |
67 | #define INIT_CAPS_ARRAY_SIZE(...) (sizeof((long[]){__VA_ARGS__}) /\ |
68 | sizeof(long)) | |
69 | ||
70 | #define FS_CAP(cap) (__mlx5_bit_off(flow_table_nic_cap, cap)) | |
71 | ||
72 | #define FS_REQUIRED_CAPS(...) {.arr_sz = INIT_CAPS_ARRAY_SIZE(__VA_ARGS__), \ | |
73 | .caps = (long[]) {__VA_ARGS__} } | |
74 | ||
6dc6071c MG |
75 | #define FS_CHAINING_CAPS FS_REQUIRED_CAPS(FS_CAP(flow_table_properties_nic_receive.flow_modify_en), \ |
76 | FS_CAP(flow_table_properties_nic_receive.modify_root), \ | |
77 | FS_CAP(flow_table_properties_nic_receive.identified_miss_table_mode), \ | |
78 | FS_CAP(flow_table_properties_nic_receive.flow_table_modify)) | |
79 | ||
8ce78257 MB |
80 | #define FS_CHAINING_CAPS_EGRESS \ |
81 | FS_REQUIRED_CAPS( \ | |
82 | FS_CAP(flow_table_properties_nic_transmit.flow_modify_en), \ | |
83 | FS_CAP(flow_table_properties_nic_transmit.modify_root), \ | |
84 | FS_CAP(flow_table_properties_nic_transmit \ | |
85 | .identified_miss_table_mode), \ | |
86 | FS_CAP(flow_table_properties_nic_transmit.flow_table_modify)) | |
87 | ||
a257b94a | 88 | #define LEFTOVERS_NUM_LEVELS 1 |
4cbdd30e | 89 | #define LEFTOVERS_NUM_PRIOS 1 |
4cbdd30e | 90 | |
a257b94a | 91 | #define BY_PASS_PRIO_NUM_LEVELS 1 |
6dc6071c | 92 | #define BY_PASS_MIN_LEVEL (ETHTOOL_MIN_LEVEL + MLX5_BY_PASS_NUM_PRIOS +\ |
a257b94a MG |
93 | LEFTOVERS_NUM_PRIOS) |
94 | ||
6dc6071c | 95 | #define ETHTOOL_PRIO_NUM_LEVELS 1 |
e5835f28 | 96 | #define ETHTOOL_NUM_PRIOS 11 |
6dc6071c | 97 | #define ETHTOOL_MIN_LEVEL (KERNEL_MIN_LEVEL + ETHTOOL_NUM_PRIOS) |
7b3722fa GP |
98 | /* Vlan, mac, ttc, inner ttc, aRFS */ |
99 | #define KERNEL_NIC_PRIO_NUM_LEVELS 5 | |
13de6c10 MG |
100 | #define KERNEL_NIC_NUM_PRIOS 1 |
101 | /* One more level for tc */ | |
102 | #define KERNEL_MIN_LEVEL (KERNEL_NIC_PRIO_NUM_LEVELS + 1) | |
8d40d162 | 103 | |
479f074c OG |
104 | #define KERNEL_NIC_TC_NUM_PRIOS 1 |
105 | #define KERNEL_NIC_TC_NUM_LEVELS 2 | |
106 | ||
a257b94a | 107 | #define ANCHOR_NUM_LEVELS 1 |
153fefbf MG |
108 | #define ANCHOR_NUM_PRIOS 1 |
109 | #define ANCHOR_MIN_LEVEL (BY_PASS_MIN_LEVEL + 1) | |
acbc2004 OG |
110 | |
111 | #define OFFLOADS_MAX_FT 1 | |
112 | #define OFFLOADS_NUM_PRIOS 1 | |
113 | #define OFFLOADS_MIN_LEVEL (ANCHOR_MIN_LEVEL + 1) | |
114 | ||
3e75d4eb AH |
115 | #define LAG_PRIO_NUM_LEVELS 1 |
116 | #define LAG_NUM_PRIOS 1 | |
117 | #define LAG_MIN_LEVEL (OFFLOADS_MIN_LEVEL + 1) | |
118 | ||
8d40d162 MG |
119 | struct node_caps { |
120 | size_t arr_sz; | |
121 | long *caps; | |
122 | }; | |
8963ca45 | 123 | |
25302363 MG |
124 | static struct init_tree_node { |
125 | enum fs_node_type type; | |
126 | struct init_tree_node *children; | |
127 | int ar_size; | |
8d40d162 | 128 | struct node_caps caps; |
25302363 | 129 | int min_ft_level; |
4cbdd30e | 130 | int num_leaf_prios; |
25302363 | 131 | int prio; |
a257b94a | 132 | int num_levels; |
25302363 MG |
133 | } root_fs = { |
134 | .type = FS_TYPE_NAMESPACE, | |
3e75d4eb | 135 | .ar_size = 7, |
25302363 | 136 | .children = (struct init_tree_node[]) { |
4cbdd30e | 137 | ADD_PRIO(0, BY_PASS_MIN_LEVEL, 0, |
6dc6071c | 138 | FS_CHAINING_CAPS, |
a257b94a MG |
139 | ADD_NS(ADD_MULTIPLE_PRIO(MLX5_BY_PASS_NUM_PRIOS, |
140 | BY_PASS_PRIO_NUM_LEVELS))), | |
3e75d4eb AH |
141 | ADD_PRIO(0, LAG_MIN_LEVEL, 0, |
142 | FS_CHAINING_CAPS, | |
143 | ADD_NS(ADD_MULTIPLE_PRIO(LAG_NUM_PRIOS, | |
144 | LAG_PRIO_NUM_LEVELS))), | |
acbc2004 OG |
145 | ADD_PRIO(0, OFFLOADS_MIN_LEVEL, 0, {}, |
146 | ADD_NS(ADD_MULTIPLE_PRIO(OFFLOADS_NUM_PRIOS, OFFLOADS_MAX_FT))), | |
6dc6071c MG |
147 | ADD_PRIO(0, ETHTOOL_MIN_LEVEL, 0, |
148 | FS_CHAINING_CAPS, | |
149 | ADD_NS(ADD_MULTIPLE_PRIO(ETHTOOL_NUM_PRIOS, | |
150 | ETHTOOL_PRIO_NUM_LEVELS))), | |
a257b94a | 151 | ADD_PRIO(0, KERNEL_MIN_LEVEL, 0, {}, |
479f074c | 152 | ADD_NS(ADD_MULTIPLE_PRIO(KERNEL_NIC_TC_NUM_PRIOS, KERNEL_NIC_TC_NUM_LEVELS), |
13de6c10 MG |
153 | ADD_MULTIPLE_PRIO(KERNEL_NIC_NUM_PRIOS, |
154 | KERNEL_NIC_PRIO_NUM_LEVELS))), | |
4cbdd30e | 155 | ADD_PRIO(0, BY_PASS_MIN_LEVEL, 0, |
6dc6071c | 156 | FS_CHAINING_CAPS, |
a257b94a | 157 | ADD_NS(ADD_MULTIPLE_PRIO(LEFTOVERS_NUM_PRIOS, LEFTOVERS_NUM_LEVELS))), |
153fefbf | 158 | ADD_PRIO(0, ANCHOR_MIN_LEVEL, 0, {}, |
a257b94a | 159 | ADD_NS(ADD_MULTIPLE_PRIO(ANCHOR_NUM_PRIOS, ANCHOR_NUM_LEVELS))), |
25302363 MG |
160 | } |
161 | }; | |
162 | ||
8ce78257 MB |
163 | static struct init_tree_node egress_root_fs = { |
164 | .type = FS_TYPE_NAMESPACE, | |
165 | .ar_size = 1, | |
166 | .children = (struct init_tree_node[]) { | |
167 | ADD_PRIO(0, MLX5_BY_PASS_NUM_PRIOS, 0, | |
168 | FS_CHAINING_CAPS_EGRESS, | |
169 | ADD_NS(ADD_MULTIPLE_PRIO(MLX5_BY_PASS_NUM_PRIOS, | |
170 | BY_PASS_PRIO_NUM_LEVELS))), | |
171 | } | |
172 | }; | |
173 | ||
c7784b1c MG |
174 | enum fs_i_lock_class { |
175 | FS_LOCK_GRANDPARENT, | |
176 | FS_LOCK_PARENT, | |
177 | FS_LOCK_CHILD | |
f0d22d18 MG |
178 | }; |
179 | ||
0d235c3f MB |
180 | static const struct rhashtable_params rhash_fte = { |
181 | .key_len = FIELD_SIZEOF(struct fs_fte, val), | |
182 | .key_offset = offsetof(struct fs_fte, val), | |
183 | .head_offset = offsetof(struct fs_fte, hash), | |
184 | .automatic_shrinking = true, | |
185 | .min_size = 1, | |
186 | }; | |
187 | ||
693c6883 MB |
188 | static const struct rhashtable_params rhash_fg = { |
189 | .key_len = FIELD_SIZEOF(struct mlx5_flow_group, mask), | |
190 | .key_offset = offsetof(struct mlx5_flow_group, mask), | |
191 | .head_offset = offsetof(struct mlx5_flow_group, hash), | |
192 | .automatic_shrinking = true, | |
193 | .min_size = 1, | |
194 | ||
195 | }; | |
196 | ||
bd71b08e MG |
197 | static void del_hw_flow_table(struct fs_node *node); |
198 | static void del_hw_flow_group(struct fs_node *node); | |
199 | static void del_hw_fte(struct fs_node *node); | |
200 | static void del_sw_flow_table(struct fs_node *node); | |
201 | static void del_sw_flow_group(struct fs_node *node); | |
202 | static void del_sw_fte(struct fs_node *node); | |
139ed6c6 MG |
203 | static void del_sw_prio(struct fs_node *node); |
204 | static void del_sw_ns(struct fs_node *node); | |
bd71b08e MG |
205 | /* Delete rule (destination) is special case that |
206 | * requires to lock the FTE for all the deletion process. | |
207 | */ | |
208 | static void del_sw_hw_rule(struct fs_node *node); | |
814fb875 MB |
209 | static bool mlx5_flow_dests_cmp(struct mlx5_flow_destination *d1, |
210 | struct mlx5_flow_destination *d2); | |
9c26f5f8 | 211 | static void cleanup_root_ns(struct mlx5_flow_root_namespace *root_ns); |
74491de9 MB |
212 | static struct mlx5_flow_rule * |
213 | find_flow_rule(struct fs_fte *fte, | |
214 | struct mlx5_flow_destination *dest); | |
de8575e0 MG |
215 | |
216 | static void tree_init_node(struct fs_node *node, | |
bd71b08e MG |
217 | void (*del_hw_func)(struct fs_node *), |
218 | void (*del_sw_func)(struct fs_node *)) | |
de8575e0 | 219 | { |
dd8e1945 | 220 | refcount_set(&node->refcount, 1); |
de8575e0 MG |
221 | INIT_LIST_HEAD(&node->list); |
222 | INIT_LIST_HEAD(&node->children); | |
c7784b1c | 223 | init_rwsem(&node->lock); |
bd71b08e MG |
224 | node->del_hw_func = del_hw_func; |
225 | node->del_sw_func = del_sw_func; | |
19f100fe | 226 | node->active = false; |
de8575e0 MG |
227 | } |
228 | ||
229 | static void tree_add_node(struct fs_node *node, struct fs_node *parent) | |
230 | { | |
231 | if (parent) | |
dd8e1945 | 232 | refcount_inc(&parent->refcount); |
de8575e0 MG |
233 | node->parent = parent; |
234 | ||
235 | /* Parent is the root */ | |
236 | if (!parent) | |
237 | node->root = node; | |
238 | else | |
239 | node->root = parent->root; | |
240 | } | |
241 | ||
bd71b08e | 242 | static int tree_get_node(struct fs_node *node) |
de8575e0 | 243 | { |
dd8e1945 | 244 | return refcount_inc_not_zero(&node->refcount); |
de8575e0 MG |
245 | } |
246 | ||
bd71b08e MG |
247 | static void nested_down_read_ref_node(struct fs_node *node, |
248 | enum fs_i_lock_class class) | |
de8575e0 MG |
249 | { |
250 | if (node) { | |
bd71b08e | 251 | down_read_nested(&node->lock, class); |
dd8e1945 | 252 | refcount_inc(&node->refcount); |
de8575e0 MG |
253 | } |
254 | } | |
255 | ||
bd71b08e MG |
256 | static void nested_down_write_ref_node(struct fs_node *node, |
257 | enum fs_i_lock_class class) | |
de8575e0 MG |
258 | { |
259 | if (node) { | |
bd71b08e | 260 | down_write_nested(&node->lock, class); |
dd8e1945 | 261 | refcount_inc(&node->refcount); |
de8575e0 MG |
262 | } |
263 | } | |
264 | ||
bd71b08e | 265 | static void down_write_ref_node(struct fs_node *node) |
de8575e0 MG |
266 | { |
267 | if (node) { | |
bd71b08e | 268 | down_write(&node->lock); |
dd8e1945 | 269 | refcount_inc(&node->refcount); |
de8575e0 MG |
270 | } |
271 | } | |
272 | ||
bd71b08e MG |
273 | static void up_read_ref_node(struct fs_node *node) |
274 | { | |
dd8e1945 | 275 | refcount_dec(&node->refcount); |
bd71b08e MG |
276 | up_read(&node->lock); |
277 | } | |
278 | ||
279 | static void up_write_ref_node(struct fs_node *node) | |
280 | { | |
dd8e1945 | 281 | refcount_dec(&node->refcount); |
bd71b08e MG |
282 | up_write(&node->lock); |
283 | } | |
284 | ||
de8575e0 MG |
285 | static void tree_put_node(struct fs_node *node) |
286 | { | |
287 | struct fs_node *parent_node = node->parent; | |
288 | ||
dd8e1945 | 289 | if (refcount_dec_and_test(&node->refcount)) { |
bd71b08e MG |
290 | if (node->del_hw_func) |
291 | node->del_hw_func(node); | |
292 | if (parent_node) { | |
293 | /* Only root namespace doesn't have parent and we just | |
294 | * need to free its node. | |
295 | */ | |
296 | down_write_ref_node(parent_node); | |
de8575e0 | 297 | list_del_init(&node->list); |
bd71b08e MG |
298 | if (node->del_sw_func) |
299 | node->del_sw_func(node); | |
300 | up_write_ref_node(parent_node); | |
a369d4ac MG |
301 | } else { |
302 | kfree(node); | |
bd71b08e | 303 | } |
de8575e0 MG |
304 | node = NULL; |
305 | } | |
de8575e0 MG |
306 | if (!node && parent_node) |
307 | tree_put_node(parent_node); | |
308 | } | |
309 | ||
310 | static int tree_remove_node(struct fs_node *node) | |
311 | { | |
dd8e1945 ER |
312 | if (refcount_read(&node->refcount) > 1) { |
313 | refcount_dec(&node->refcount); | |
b3638e1a MG |
314 | return -EEXIST; |
315 | } | |
de8575e0 MG |
316 | tree_put_node(node); |
317 | return 0; | |
318 | } | |
5e1626c0 MG |
319 | |
320 | static struct fs_prio *find_prio(struct mlx5_flow_namespace *ns, | |
321 | unsigned int prio) | |
322 | { | |
323 | struct fs_prio *iter_prio; | |
324 | ||
325 | fs_for_each_prio(iter_prio, ns) { | |
326 | if (iter_prio->prio == prio) | |
327 | return iter_prio; | |
328 | } | |
329 | ||
330 | return NULL; | |
331 | } | |
332 | ||
693c6883 | 333 | static bool check_valid_spec(const struct mlx5_flow_spec *spec) |
5e1626c0 | 334 | { |
693c6883 MB |
335 | int i; |
336 | ||
693c6883 MB |
337 | for (i = 0; i < MLX5_ST_SZ_DW_MATCH_PARAM; i++) |
338 | if (spec->match_value[i] & ~spec->match_criteria[i]) { | |
339 | pr_warn("mlx5_core: match_value differs from match_criteria\n"); | |
340 | return false; | |
341 | } | |
342 | ||
2aada6c0 | 343 | return true; |
5e1626c0 | 344 | } |
0c56b975 MG |
345 | |
346 | static struct mlx5_flow_root_namespace *find_root(struct fs_node *node) | |
347 | { | |
348 | struct fs_node *root; | |
349 | struct mlx5_flow_namespace *ns; | |
350 | ||
351 | root = node->root; | |
352 | ||
353 | if (WARN_ON(root->type != FS_TYPE_NAMESPACE)) { | |
354 | pr_warn("mlx5: flow steering node is not in tree or garbaged\n"); | |
355 | return NULL; | |
356 | } | |
357 | ||
358 | ns = container_of(root, struct mlx5_flow_namespace, node); | |
359 | return container_of(ns, struct mlx5_flow_root_namespace, ns); | |
360 | } | |
361 | ||
a369d4ac MG |
362 | static inline struct mlx5_flow_steering *get_steering(struct fs_node *node) |
363 | { | |
364 | struct mlx5_flow_root_namespace *root = find_root(node); | |
365 | ||
366 | if (root) | |
367 | return root->dev->priv.steering; | |
368 | return NULL; | |
369 | } | |
370 | ||
0c56b975 MG |
371 | static inline struct mlx5_core_dev *get_dev(struct fs_node *node) |
372 | { | |
373 | struct mlx5_flow_root_namespace *root = find_root(node); | |
374 | ||
375 | if (root) | |
376 | return root->dev; | |
377 | return NULL; | |
378 | } | |
379 | ||
139ed6c6 MG |
380 | static void del_sw_ns(struct fs_node *node) |
381 | { | |
382 | kfree(node); | |
383 | } | |
384 | ||
385 | static void del_sw_prio(struct fs_node *node) | |
386 | { | |
387 | kfree(node); | |
388 | } | |
389 | ||
bd71b08e | 390 | static void del_hw_flow_table(struct fs_node *node) |
0c56b975 | 391 | { |
af76c501 | 392 | struct mlx5_flow_root_namespace *root; |
0c56b975 MG |
393 | struct mlx5_flow_table *ft; |
394 | struct mlx5_core_dev *dev; | |
0c56b975 MG |
395 | int err; |
396 | ||
397 | fs_get_obj(ft, node); | |
398 | dev = get_dev(&ft->node); | |
af76c501 | 399 | root = find_root(&ft->node); |
0c56b975 | 400 | |
19f100fe | 401 | if (node->active) { |
af76c501 | 402 | err = root->cmds->destroy_flow_table(dev, ft); |
19f100fe MG |
403 | if (err) |
404 | mlx5_core_warn(dev, "flow steering can't destroy ft\n"); | |
405 | } | |
bd71b08e MG |
406 | } |
407 | ||
408 | static void del_sw_flow_table(struct fs_node *node) | |
409 | { | |
410 | struct mlx5_flow_table *ft; | |
411 | struct fs_prio *prio; | |
412 | ||
413 | fs_get_obj(ft, node); | |
414 | ||
693c6883 | 415 | rhltable_destroy(&ft->fgs_hash); |
0c56b975 MG |
416 | fs_get_obj(prio, ft->node.parent); |
417 | prio->num_ft--; | |
a369d4ac | 418 | kfree(ft); |
0c56b975 MG |
419 | } |
420 | ||
bd71b08e | 421 | static void del_sw_hw_rule(struct fs_node *node) |
0c56b975 | 422 | { |
af76c501 | 423 | struct mlx5_flow_root_namespace *root; |
0c56b975 MG |
424 | struct mlx5_flow_rule *rule; |
425 | struct mlx5_flow_table *ft; | |
426 | struct mlx5_flow_group *fg; | |
427 | struct fs_fte *fte; | |
bd5251db | 428 | int modify_mask; |
0c56b975 | 429 | struct mlx5_core_dev *dev = get_dev(node); |
0c56b975 | 430 | int err; |
ae058314 | 431 | bool update_fte = false; |
0c56b975 | 432 | |
0c56b975 MG |
433 | fs_get_obj(rule, node); |
434 | fs_get_obj(fte, rule->node.parent); | |
435 | fs_get_obj(fg, fte->node.parent); | |
0c56b975 | 436 | fs_get_obj(ft, fg->node.parent); |
4c03e69a | 437 | trace_mlx5_fs_del_rule(rule); |
b3638e1a MG |
438 | if (rule->sw_action == MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO) { |
439 | mutex_lock(&rule->dest_attr.ft->lock); | |
440 | list_del(&rule->next_ft); | |
441 | mutex_unlock(&rule->dest_attr.ft->lock); | |
442 | } | |
ae058314 MB |
443 | |
444 | if (rule->dest_attr.type == MLX5_FLOW_DESTINATION_TYPE_COUNTER && | |
445 | --fte->dests_size) { | |
202854e9 CM |
446 | modify_mask = BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_ACTION) | |
447 | BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_FLOW_COUNTERS); | |
d2ec6a35 | 448 | fte->action.action &= ~MLX5_FLOW_CONTEXT_ACTION_COUNT; |
ae058314 MB |
449 | update_fte = true; |
450 | goto out; | |
451 | } | |
452 | ||
d2ec6a35 | 453 | if ((fte->action.action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) && |
60ab4584 | 454 | --fte->dests_size) { |
bd5251db | 455 | modify_mask = BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_DESTINATION_LIST), |
ae058314 MB |
456 | update_fte = true; |
457 | } | |
458 | out: | |
af76c501 | 459 | root = find_root(&ft->node); |
ae058314 | 460 | if (update_fte && fte->dests_size) { |
af76c501 | 461 | err = root->cmds->update_fte(dev, ft, fg->id, modify_mask, fte); |
0c56b975 | 462 | if (err) |
2974ab6e SM |
463 | mlx5_core_warn(dev, |
464 | "%s can't del rule fg id=%d fte_index=%d\n", | |
465 | __func__, fg->id, fte->index); | |
0c56b975 | 466 | } |
a369d4ac | 467 | kfree(rule); |
0c56b975 MG |
468 | } |
469 | ||
bd71b08e | 470 | static void del_hw_fte(struct fs_node *node) |
0c56b975 | 471 | { |
af76c501 | 472 | struct mlx5_flow_root_namespace *root; |
0c56b975 MG |
473 | struct mlx5_flow_table *ft; |
474 | struct mlx5_flow_group *fg; | |
475 | struct mlx5_core_dev *dev; | |
476 | struct fs_fte *fte; | |
477 | int err; | |
478 | ||
479 | fs_get_obj(fte, node); | |
480 | fs_get_obj(fg, fte->node.parent); | |
481 | fs_get_obj(ft, fg->node.parent); | |
482 | ||
bd71b08e | 483 | trace_mlx5_fs_del_fte(fte); |
0c56b975 | 484 | dev = get_dev(&ft->node); |
af76c501 | 485 | root = find_root(&ft->node); |
19f100fe | 486 | if (node->active) { |
e810bf5e | 487 | err = root->cmds->delete_fte(dev, ft, fte); |
19f100fe MG |
488 | if (err) |
489 | mlx5_core_warn(dev, | |
490 | "flow steering can't delete fte in index %d of flow group id %d\n", | |
491 | fte->index, fg->id); | |
492 | } | |
bd71b08e MG |
493 | } |
494 | ||
495 | static void del_sw_fte(struct fs_node *node) | |
496 | { | |
a369d4ac | 497 | struct mlx5_flow_steering *steering = get_steering(node); |
bd71b08e MG |
498 | struct mlx5_flow_group *fg; |
499 | struct fs_fte *fte; | |
500 | int err; | |
501 | ||
502 | fs_get_obj(fte, node); | |
503 | fs_get_obj(fg, fte->node.parent); | |
0c56b975 | 504 | |
19f100fe MG |
505 | err = rhashtable_remove_fast(&fg->ftes_hash, |
506 | &fte->hash, | |
507 | rhash_fte); | |
508 | WARN_ON(err); | |
509 | ida_simple_remove(&fg->fte_allocator, fte->index - fg->start_index); | |
a369d4ac | 510 | kmem_cache_free(steering->ftes_cache, fte); |
0c56b975 MG |
511 | } |
512 | ||
bd71b08e | 513 | static void del_hw_flow_group(struct fs_node *node) |
0c56b975 | 514 | { |
af76c501 | 515 | struct mlx5_flow_root_namespace *root; |
0c56b975 MG |
516 | struct mlx5_flow_group *fg; |
517 | struct mlx5_flow_table *ft; | |
518 | struct mlx5_core_dev *dev; | |
519 | ||
520 | fs_get_obj(fg, node); | |
521 | fs_get_obj(ft, fg->node.parent); | |
522 | dev = get_dev(&ft->node); | |
4c03e69a | 523 | trace_mlx5_fs_del_fg(fg); |
0c56b975 | 524 | |
af76c501 MB |
525 | root = find_root(&ft->node); |
526 | if (fg->node.active && root->cmds->destroy_flow_group(dev, ft, fg->id)) | |
bd71b08e MG |
527 | mlx5_core_warn(dev, "flow steering can't destroy fg %d of ft %d\n", |
528 | fg->id, ft->id); | |
529 | } | |
530 | ||
531 | static void del_sw_flow_group(struct fs_node *node) | |
532 | { | |
a369d4ac | 533 | struct mlx5_flow_steering *steering = get_steering(node); |
bd71b08e MG |
534 | struct mlx5_flow_group *fg; |
535 | struct mlx5_flow_table *ft; | |
536 | int err; | |
537 | ||
538 | fs_get_obj(fg, node); | |
539 | fs_get_obj(ft, fg->node.parent); | |
32dba76a | 540 | |
0d235c3f | 541 | rhashtable_destroy(&fg->ftes_hash); |
75d1d187 | 542 | ida_destroy(&fg->fte_allocator); |
bd71b08e MG |
543 | if (ft->autogroup.active) |
544 | ft->autogroup.num_groups--; | |
693c6883 MB |
545 | err = rhltable_remove(&ft->fgs_hash, |
546 | &fg->hash, | |
547 | rhash_fg); | |
548 | WARN_ON(err); | |
a369d4ac | 549 | kmem_cache_free(steering->fgs_cache, fg); |
0c56b975 MG |
550 | } |
551 | ||
f5c2ff17 MG |
552 | static int insert_fte(struct mlx5_flow_group *fg, struct fs_fte *fte) |
553 | { | |
554 | int index; | |
555 | int ret; | |
556 | ||
557 | index = ida_simple_get(&fg->fte_allocator, 0, fg->max_ftes, GFP_KERNEL); | |
558 | if (index < 0) | |
559 | return index; | |
560 | ||
561 | fte->index = index + fg->start_index; | |
562 | ret = rhashtable_insert_fast(&fg->ftes_hash, | |
563 | &fte->hash, | |
564 | rhash_fte); | |
565 | if (ret) | |
566 | goto err_ida_remove; | |
567 | ||
568 | tree_add_node(&fte->node, &fg->node); | |
569 | list_add_tail(&fte->node.list, &fg->node.children); | |
570 | return 0; | |
571 | ||
572 | err_ida_remove: | |
573 | ida_simple_remove(&fg->fte_allocator, index); | |
574 | return ret; | |
575 | } | |
576 | ||
a369d4ac MG |
577 | static struct fs_fte *alloc_fte(struct mlx5_flow_table *ft, |
578 | u32 *match_value, | |
f5c2ff17 | 579 | struct mlx5_flow_act *flow_act) |
0c56b975 | 580 | { |
a369d4ac | 581 | struct mlx5_flow_steering *steering = get_steering(&ft->node); |
0c56b975 MG |
582 | struct fs_fte *fte; |
583 | ||
a369d4ac | 584 | fte = kmem_cache_zalloc(steering->ftes_cache, GFP_KERNEL); |
0c56b975 MG |
585 | if (!fte) |
586 | return ERR_PTR(-ENOMEM); | |
587 | ||
588 | memcpy(fte->val, match_value, sizeof(fte->val)); | |
589 | fte->node.type = FS_TYPE_FLOW_ENTRY; | |
d2ec6a35 | 590 | fte->action = *flow_act; |
0c56b975 | 591 | |
bd71b08e | 592 | tree_init_node(&fte->node, del_hw_fte, del_sw_fte); |
19f100fe MG |
593 | |
594 | return fte; | |
19f100fe MG |
595 | } |
596 | ||
a369d4ac MG |
597 | static void dealloc_flow_group(struct mlx5_flow_steering *steering, |
598 | struct mlx5_flow_group *fg) | |
19f100fe MG |
599 | { |
600 | rhashtable_destroy(&fg->ftes_hash); | |
a369d4ac | 601 | kmem_cache_free(steering->fgs_cache, fg); |
19f100fe MG |
602 | } |
603 | ||
a369d4ac MG |
604 | static struct mlx5_flow_group *alloc_flow_group(struct mlx5_flow_steering *steering, |
605 | u8 match_criteria_enable, | |
19f100fe MG |
606 | void *match_criteria, |
607 | int start_index, | |
608 | int end_index) | |
0c56b975 MG |
609 | { |
610 | struct mlx5_flow_group *fg; | |
0d235c3f MB |
611 | int ret; |
612 | ||
a369d4ac | 613 | fg = kmem_cache_zalloc(steering->fgs_cache, GFP_KERNEL); |
0c56b975 MG |
614 | if (!fg) |
615 | return ERR_PTR(-ENOMEM); | |
616 | ||
0d235c3f MB |
617 | ret = rhashtable_init(&fg->ftes_hash, &rhash_fte); |
618 | if (ret) { | |
a369d4ac | 619 | kmem_cache_free(steering->fgs_cache, fg); |
0d235c3f | 620 | return ERR_PTR(ret); |
19f100fe | 621 | } |
75d1d187 | 622 | ida_init(&fg->fte_allocator); |
0c56b975 MG |
623 | fg->mask.match_criteria_enable = match_criteria_enable; |
624 | memcpy(&fg->mask.match_criteria, match_criteria, | |
625 | sizeof(fg->mask.match_criteria)); | |
626 | fg->node.type = FS_TYPE_FLOW_GROUP; | |
19f100fe MG |
627 | fg->start_index = start_index; |
628 | fg->max_ftes = end_index - start_index + 1; | |
629 | ||
630 | return fg; | |
631 | } | |
632 | ||
633 | static struct mlx5_flow_group *alloc_insert_flow_group(struct mlx5_flow_table *ft, | |
634 | u8 match_criteria_enable, | |
635 | void *match_criteria, | |
636 | int start_index, | |
637 | int end_index, | |
638 | struct list_head *prev) | |
639 | { | |
a369d4ac | 640 | struct mlx5_flow_steering *steering = get_steering(&ft->node); |
19f100fe MG |
641 | struct mlx5_flow_group *fg; |
642 | int ret; | |
643 | ||
a369d4ac | 644 | fg = alloc_flow_group(steering, match_criteria_enable, match_criteria, |
19f100fe MG |
645 | start_index, end_index); |
646 | if (IS_ERR(fg)) | |
647 | return fg; | |
648 | ||
649 | /* initialize refcnt, add to parent list */ | |
650 | ret = rhltable_insert(&ft->fgs_hash, | |
651 | &fg->hash, | |
652 | rhash_fg); | |
653 | if (ret) { | |
a369d4ac | 654 | dealloc_flow_group(steering, fg); |
19f100fe MG |
655 | return ERR_PTR(ret); |
656 | } | |
657 | ||
bd71b08e | 658 | tree_init_node(&fg->node, del_hw_flow_group, del_sw_flow_group); |
19f100fe MG |
659 | tree_add_node(&fg->node, &ft->node); |
660 | /* Add node to group list */ | |
661 | list_add(&fg->node.list, prev); | |
bd71b08e | 662 | atomic_inc(&ft->node.version); |
19f100fe | 663 | |
0c56b975 MG |
664 | return fg; |
665 | } | |
666 | ||
efdc810b | 667 | static struct mlx5_flow_table *alloc_flow_table(int level, u16 vport, int max_fte, |
aaff1bea | 668 | enum fs_flow_table_type table_type, |
c9f1b073 HHZ |
669 | enum fs_flow_table_op_mod op_mod, |
670 | u32 flags) | |
0c56b975 MG |
671 | { |
672 | struct mlx5_flow_table *ft; | |
693c6883 | 673 | int ret; |
0c56b975 MG |
674 | |
675 | ft = kzalloc(sizeof(*ft), GFP_KERNEL); | |
676 | if (!ft) | |
693c6883 MB |
677 | return ERR_PTR(-ENOMEM); |
678 | ||
679 | ret = rhltable_init(&ft->fgs_hash, &rhash_fg); | |
680 | if (ret) { | |
681 | kfree(ft); | |
682 | return ERR_PTR(ret); | |
683 | } | |
0c56b975 MG |
684 | |
685 | ft->level = level; | |
686 | ft->node.type = FS_TYPE_FLOW_TABLE; | |
aaff1bea | 687 | ft->op_mod = op_mod; |
0c56b975 | 688 | ft->type = table_type; |
efdc810b | 689 | ft->vport = vport; |
0c56b975 | 690 | ft->max_fte = max_fte; |
c9f1b073 | 691 | ft->flags = flags; |
b3638e1a MG |
692 | INIT_LIST_HEAD(&ft->fwd_rules); |
693 | mutex_init(&ft->lock); | |
0c56b975 MG |
694 | |
695 | return ft; | |
696 | } | |
697 | ||
fdb6896f MG |
698 | /* If reverse is false, then we search for the first flow table in the |
699 | * root sub-tree from start(closest from right), else we search for the | |
700 | * last flow table in the root sub-tree till start(closest from left). | |
701 | */ | |
702 | static struct mlx5_flow_table *find_closest_ft_recursive(struct fs_node *root, | |
703 | struct list_head *start, | |
704 | bool reverse) | |
705 | { | |
706 | #define list_advance_entry(pos, reverse) \ | |
707 | ((reverse) ? list_prev_entry(pos, list) : list_next_entry(pos, list)) | |
708 | ||
709 | #define list_for_each_advance_continue(pos, head, reverse) \ | |
710 | for (pos = list_advance_entry(pos, reverse); \ | |
711 | &pos->list != (head); \ | |
712 | pos = list_advance_entry(pos, reverse)) | |
713 | ||
714 | struct fs_node *iter = list_entry(start, struct fs_node, list); | |
715 | struct mlx5_flow_table *ft = NULL; | |
716 | ||
328edb49 | 717 | if (!root || root->type == FS_TYPE_PRIO_CHAINS) |
fdb6896f MG |
718 | return NULL; |
719 | ||
720 | list_for_each_advance_continue(iter, &root->children, reverse) { | |
721 | if (iter->type == FS_TYPE_FLOW_TABLE) { | |
722 | fs_get_obj(ft, iter); | |
723 | return ft; | |
724 | } | |
725 | ft = find_closest_ft_recursive(iter, &iter->children, reverse); | |
726 | if (ft) | |
727 | return ft; | |
728 | } | |
729 | ||
730 | return ft; | |
731 | } | |
732 | ||
733 | /* If reverse if false then return the first flow table in next priority of | |
734 | * prio in the tree, else return the last flow table in the previous priority | |
735 | * of prio in the tree. | |
736 | */ | |
737 | static struct mlx5_flow_table *find_closest_ft(struct fs_prio *prio, bool reverse) | |
738 | { | |
739 | struct mlx5_flow_table *ft = NULL; | |
740 | struct fs_node *curr_node; | |
741 | struct fs_node *parent; | |
742 | ||
743 | parent = prio->node.parent; | |
744 | curr_node = &prio->node; | |
745 | while (!ft && parent) { | |
746 | ft = find_closest_ft_recursive(parent, &curr_node->list, reverse); | |
747 | curr_node = parent; | |
748 | parent = curr_node->parent; | |
749 | } | |
750 | return ft; | |
751 | } | |
752 | ||
753 | /* Assuming all the tree is locked by mutex chain lock */ | |
754 | static struct mlx5_flow_table *find_next_chained_ft(struct fs_prio *prio) | |
755 | { | |
756 | return find_closest_ft(prio, false); | |
757 | } | |
758 | ||
759 | /* Assuming all the tree is locked by mutex chain lock */ | |
760 | static struct mlx5_flow_table *find_prev_chained_ft(struct fs_prio *prio) | |
761 | { | |
762 | return find_closest_ft(prio, true); | |
763 | } | |
764 | ||
f90edfd2 MG |
765 | static int connect_fts_in_prio(struct mlx5_core_dev *dev, |
766 | struct fs_prio *prio, | |
767 | struct mlx5_flow_table *ft) | |
768 | { | |
af76c501 | 769 | struct mlx5_flow_root_namespace *root = find_root(&prio->node); |
f90edfd2 MG |
770 | struct mlx5_flow_table *iter; |
771 | int i = 0; | |
772 | int err; | |
773 | ||
774 | fs_for_each_ft(iter, prio) { | |
775 | i++; | |
af76c501 | 776 | err = root->cmds->modify_flow_table(dev, iter, ft); |
f90edfd2 MG |
777 | if (err) { |
778 | mlx5_core_warn(dev, "Failed to modify flow table %d\n", | |
779 | iter->id); | |
780 | /* The driver is out of sync with the FW */ | |
781 | if (i > 1) | |
782 | WARN_ON(true); | |
783 | return err; | |
784 | } | |
785 | } | |
786 | return 0; | |
787 | } | |
788 | ||
789 | /* Connect flow tables from previous priority of prio to ft */ | |
790 | static int connect_prev_fts(struct mlx5_core_dev *dev, | |
791 | struct mlx5_flow_table *ft, | |
792 | struct fs_prio *prio) | |
793 | { | |
794 | struct mlx5_flow_table *prev_ft; | |
795 | ||
796 | prev_ft = find_prev_chained_ft(prio); | |
797 | if (prev_ft) { | |
798 | struct fs_prio *prev_prio; | |
799 | ||
800 | fs_get_obj(prev_prio, prev_ft->node.parent); | |
801 | return connect_fts_in_prio(dev, prev_prio, ft); | |
802 | } | |
803 | return 0; | |
804 | } | |
805 | ||
2cc43b49 MG |
806 | static int update_root_ft_create(struct mlx5_flow_table *ft, struct fs_prio |
807 | *prio) | |
808 | { | |
809 | struct mlx5_flow_root_namespace *root = find_root(&prio->node); | |
dae37456 | 810 | struct mlx5_ft_underlay_qp *uqp; |
2cc43b49 MG |
811 | int min_level = INT_MAX; |
812 | int err; | |
dae37456 | 813 | u32 qpn; |
2cc43b49 MG |
814 | |
815 | if (root->root_ft) | |
816 | min_level = root->root_ft->level; | |
817 | ||
818 | if (ft->level >= min_level) | |
819 | return 0; | |
820 | ||
dae37456 AV |
821 | if (list_empty(&root->underlay_qpns)) { |
822 | /* Don't set any QPN (zero) in case QPN list is empty */ | |
823 | qpn = 0; | |
af76c501 | 824 | err = root->cmds->update_root_ft(root->dev, ft, qpn, false); |
dae37456 AV |
825 | } else { |
826 | list_for_each_entry(uqp, &root->underlay_qpns, list) { | |
827 | qpn = uqp->qpn; | |
af76c501 MB |
828 | err = root->cmds->update_root_ft(root->dev, ft, |
829 | qpn, false); | |
dae37456 AV |
830 | if (err) |
831 | break; | |
832 | } | |
833 | } | |
834 | ||
2cc43b49 | 835 | if (err) |
dae37456 AV |
836 | mlx5_core_warn(root->dev, |
837 | "Update root flow table of id(%u) qpn(%d) failed\n", | |
838 | ft->id, qpn); | |
2cc43b49 MG |
839 | else |
840 | root->root_ft = ft; | |
841 | ||
842 | return err; | |
843 | } | |
844 | ||
74491de9 MB |
845 | static int _mlx5_modify_rule_destination(struct mlx5_flow_rule *rule, |
846 | struct mlx5_flow_destination *dest) | |
b3638e1a | 847 | { |
af76c501 | 848 | struct mlx5_flow_root_namespace *root; |
b3638e1a MG |
849 | struct mlx5_flow_table *ft; |
850 | struct mlx5_flow_group *fg; | |
851 | struct fs_fte *fte; | |
bd5251db | 852 | int modify_mask = BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_DESTINATION_LIST); |
b3638e1a MG |
853 | int err = 0; |
854 | ||
855 | fs_get_obj(fte, rule->node.parent); | |
d2ec6a35 | 856 | if (!(fte->action.action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST)) |
b3638e1a | 857 | return -EINVAL; |
bd71b08e | 858 | down_write_ref_node(&fte->node); |
b3638e1a MG |
859 | fs_get_obj(fg, fte->node.parent); |
860 | fs_get_obj(ft, fg->node.parent); | |
861 | ||
862 | memcpy(&rule->dest_attr, dest, sizeof(*dest)); | |
af76c501 MB |
863 | root = find_root(&ft->node); |
864 | err = root->cmds->update_fte(get_dev(&ft->node), ft, fg->id, | |
865 | modify_mask, fte); | |
bd71b08e | 866 | up_write_ref_node(&fte->node); |
b3638e1a MG |
867 | |
868 | return err; | |
869 | } | |
870 | ||
74491de9 MB |
871 | int mlx5_modify_rule_destination(struct mlx5_flow_handle *handle, |
872 | struct mlx5_flow_destination *new_dest, | |
873 | struct mlx5_flow_destination *old_dest) | |
874 | { | |
875 | int i; | |
876 | ||
877 | if (!old_dest) { | |
878 | if (handle->num_rules != 1) | |
879 | return -EINVAL; | |
880 | return _mlx5_modify_rule_destination(handle->rule[0], | |
881 | new_dest); | |
882 | } | |
883 | ||
884 | for (i = 0; i < handle->num_rules; i++) { | |
885 | if (mlx5_flow_dests_cmp(new_dest, &handle->rule[i]->dest_attr)) | |
886 | return _mlx5_modify_rule_destination(handle->rule[i], | |
887 | new_dest); | |
888 | } | |
889 | ||
890 | return -EINVAL; | |
891 | } | |
892 | ||
b3638e1a MG |
893 | /* Modify/set FWD rules that point on old_next_ft to point on new_next_ft */ |
894 | static int connect_fwd_rules(struct mlx5_core_dev *dev, | |
895 | struct mlx5_flow_table *new_next_ft, | |
896 | struct mlx5_flow_table *old_next_ft) | |
897 | { | |
4c5009c5 | 898 | struct mlx5_flow_destination dest = {}; |
b3638e1a MG |
899 | struct mlx5_flow_rule *iter; |
900 | int err = 0; | |
901 | ||
902 | /* new_next_ft and old_next_ft could be NULL only | |
903 | * when we create/destroy the anchor flow table. | |
904 | */ | |
905 | if (!new_next_ft || !old_next_ft) | |
906 | return 0; | |
907 | ||
908 | dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; | |
909 | dest.ft = new_next_ft; | |
910 | ||
911 | mutex_lock(&old_next_ft->lock); | |
912 | list_splice_init(&old_next_ft->fwd_rules, &new_next_ft->fwd_rules); | |
913 | mutex_unlock(&old_next_ft->lock); | |
914 | list_for_each_entry(iter, &new_next_ft->fwd_rules, next_ft) { | |
74491de9 | 915 | err = _mlx5_modify_rule_destination(iter, &dest); |
b3638e1a MG |
916 | if (err) |
917 | pr_err("mlx5_core: failed to modify rule to point on flow table %d\n", | |
918 | new_next_ft->id); | |
919 | } | |
920 | return 0; | |
921 | } | |
922 | ||
f90edfd2 MG |
923 | static int connect_flow_table(struct mlx5_core_dev *dev, struct mlx5_flow_table *ft, |
924 | struct fs_prio *prio) | |
925 | { | |
b3638e1a | 926 | struct mlx5_flow_table *next_ft; |
f90edfd2 MG |
927 | int err = 0; |
928 | ||
929 | /* Connect_prev_fts and update_root_ft_create are mutually exclusive */ | |
930 | ||
931 | if (list_empty(&prio->node.children)) { | |
932 | err = connect_prev_fts(dev, ft, prio); | |
933 | if (err) | |
934 | return err; | |
b3638e1a MG |
935 | |
936 | next_ft = find_next_chained_ft(prio); | |
937 | err = connect_fwd_rules(dev, ft, next_ft); | |
938 | if (err) | |
939 | return err; | |
f90edfd2 MG |
940 | } |
941 | ||
942 | if (MLX5_CAP_FLOWTABLE(dev, | |
943 | flow_table_properties_nic_receive.modify_root)) | |
944 | err = update_root_ft_create(ft, prio); | |
945 | return err; | |
946 | } | |
947 | ||
d63cd286 MG |
948 | static void list_add_flow_table(struct mlx5_flow_table *ft, |
949 | struct fs_prio *prio) | |
950 | { | |
951 | struct list_head *prev = &prio->node.children; | |
952 | struct mlx5_flow_table *iter; | |
953 | ||
954 | fs_for_each_ft(iter, prio) { | |
955 | if (iter->level > ft->level) | |
956 | break; | |
957 | prev = &iter->node.list; | |
958 | } | |
959 | list_add(&ft->node.list, prev); | |
960 | } | |
961 | ||
efdc810b | 962 | static struct mlx5_flow_table *__mlx5_create_flow_table(struct mlx5_flow_namespace *ns, |
b3ba5149 | 963 | struct mlx5_flow_table_attr *ft_attr, |
aaff1bea | 964 | enum fs_flow_table_op_mod op_mod, |
b3ba5149 | 965 | u16 vport) |
0c56b975 | 966 | { |
b3ba5149 | 967 | struct mlx5_flow_root_namespace *root = find_root(&ns->node); |
f90edfd2 | 968 | struct mlx5_flow_table *next_ft = NULL; |
b3ba5149 | 969 | struct fs_prio *fs_prio = NULL; |
0c56b975 | 970 | struct mlx5_flow_table *ft; |
0c56b975 | 971 | int log_table_sz; |
b3ba5149 | 972 | int err; |
0c56b975 MG |
973 | |
974 | if (!root) { | |
975 | pr_err("mlx5: flow steering failed to find root of namespace\n"); | |
976 | return ERR_PTR(-ENODEV); | |
977 | } | |
978 | ||
2cc43b49 | 979 | mutex_lock(&root->chain_lock); |
b3ba5149 | 980 | fs_prio = find_prio(ns, ft_attr->prio); |
2cc43b49 MG |
981 | if (!fs_prio) { |
982 | err = -EINVAL; | |
983 | goto unlock_root; | |
984 | } | |
b3ba5149 | 985 | if (ft_attr->level >= fs_prio->num_levels) { |
0c56b975 | 986 | err = -ENOSPC; |
2cc43b49 | 987 | goto unlock_root; |
0c56b975 | 988 | } |
d63cd286 MG |
989 | /* The level is related to the |
990 | * priority level range. | |
991 | */ | |
b3ba5149 ES |
992 | ft_attr->level += fs_prio->start_level; |
993 | ft = alloc_flow_table(ft_attr->level, | |
efdc810b | 994 | vport, |
b3ba5149 | 995 | ft_attr->max_fte ? roundup_pow_of_two(ft_attr->max_fte) : 0, |
aaff1bea | 996 | root->table_type, |
b3ba5149 | 997 | op_mod, ft_attr->flags); |
693c6883 MB |
998 | if (IS_ERR(ft)) { |
999 | err = PTR_ERR(ft); | |
2cc43b49 | 1000 | goto unlock_root; |
0c56b975 MG |
1001 | } |
1002 | ||
bd71b08e | 1003 | tree_init_node(&ft->node, del_hw_flow_table, del_sw_flow_table); |
aaff1bea | 1004 | log_table_sz = ft->max_fte ? ilog2(ft->max_fte) : 0; |
f90edfd2 | 1005 | next_ft = find_next_chained_ft(fs_prio); |
af76c501 MB |
1006 | err = root->cmds->create_flow_table(root->dev, ft->vport, ft->op_mod, |
1007 | ft->type, ft->level, log_table_sz, | |
1008 | next_ft, &ft->id, ft->flags); | |
0c56b975 MG |
1009 | if (err) |
1010 | goto free_ft; | |
1011 | ||
f90edfd2 MG |
1012 | err = connect_flow_table(root->dev, ft, fs_prio); |
1013 | if (err) | |
1014 | goto destroy_ft; | |
19f100fe | 1015 | ft->node.active = true; |
bd71b08e | 1016 | down_write_ref_node(&fs_prio->node); |
0c56b975 | 1017 | tree_add_node(&ft->node, &fs_prio->node); |
d63cd286 | 1018 | list_add_flow_table(ft, fs_prio); |
0c56b975 | 1019 | fs_prio->num_ft++; |
bd71b08e | 1020 | up_write_ref_node(&fs_prio->node); |
2cc43b49 | 1021 | mutex_unlock(&root->chain_lock); |
0c56b975 | 1022 | return ft; |
2cc43b49 | 1023 | destroy_ft: |
af76c501 | 1024 | root->cmds->destroy_flow_table(root->dev, ft); |
0c56b975 MG |
1025 | free_ft: |
1026 | kfree(ft); | |
2cc43b49 MG |
1027 | unlock_root: |
1028 | mutex_unlock(&root->chain_lock); | |
0c56b975 MG |
1029 | return ERR_PTR(err); |
1030 | } | |
1031 | ||
efdc810b | 1032 | struct mlx5_flow_table *mlx5_create_flow_table(struct mlx5_flow_namespace *ns, |
b3ba5149 | 1033 | struct mlx5_flow_table_attr *ft_attr) |
efdc810b | 1034 | { |
b3ba5149 | 1035 | return __mlx5_create_flow_table(ns, ft_attr, FS_FT_OP_MOD_NORMAL, 0); |
efdc810b MHY |
1036 | } |
1037 | ||
1038 | struct mlx5_flow_table *mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns, | |
1039 | int prio, int max_fte, | |
1040 | u32 level, u16 vport) | |
1041 | { | |
b3ba5149 ES |
1042 | struct mlx5_flow_table_attr ft_attr = {}; |
1043 | ||
1044 | ft_attr.max_fte = max_fte; | |
1045 | ft_attr.level = level; | |
1046 | ft_attr.prio = prio; | |
1047 | ||
57f35c93 | 1048 | return __mlx5_create_flow_table(ns, &ft_attr, FS_FT_OP_MOD_NORMAL, vport); |
efdc810b MHY |
1049 | } |
1050 | ||
b3ba5149 ES |
1051 | struct mlx5_flow_table* |
1052 | mlx5_create_lag_demux_flow_table(struct mlx5_flow_namespace *ns, | |
1053 | int prio, u32 level) | |
aaff1bea | 1054 | { |
b3ba5149 ES |
1055 | struct mlx5_flow_table_attr ft_attr = {}; |
1056 | ||
1057 | ft_attr.level = level; | |
1058 | ft_attr.prio = prio; | |
1059 | return __mlx5_create_flow_table(ns, &ft_attr, FS_FT_OP_MOD_LAG_DEMUX, 0); | |
aaff1bea AH |
1060 | } |
1061 | EXPORT_SYMBOL(mlx5_create_lag_demux_flow_table); | |
1062 | ||
b3ba5149 ES |
1063 | struct mlx5_flow_table* |
1064 | mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns, | |
1065 | int prio, | |
1066 | int num_flow_table_entries, | |
1067 | int max_num_groups, | |
1068 | u32 level, | |
1069 | u32 flags) | |
f0d22d18 | 1070 | { |
b3ba5149 | 1071 | struct mlx5_flow_table_attr ft_attr = {}; |
f0d22d18 MG |
1072 | struct mlx5_flow_table *ft; |
1073 | ||
1074 | if (max_num_groups > num_flow_table_entries) | |
1075 | return ERR_PTR(-EINVAL); | |
1076 | ||
b3ba5149 ES |
1077 | ft_attr.max_fte = num_flow_table_entries; |
1078 | ft_attr.prio = prio; | |
1079 | ft_attr.level = level; | |
1080 | ft_attr.flags = flags; | |
1081 | ||
1082 | ft = mlx5_create_flow_table(ns, &ft_attr); | |
f0d22d18 MG |
1083 | if (IS_ERR(ft)) |
1084 | return ft; | |
1085 | ||
1086 | ft->autogroup.active = true; | |
1087 | ft->autogroup.required_groups = max_num_groups; | |
1088 | ||
1089 | return ft; | |
1090 | } | |
b217ea25 | 1091 | EXPORT_SYMBOL(mlx5_create_auto_grouped_flow_table); |
f0d22d18 | 1092 | |
f0d22d18 MG |
1093 | struct mlx5_flow_group *mlx5_create_flow_group(struct mlx5_flow_table *ft, |
1094 | u32 *fg_in) | |
1095 | { | |
af76c501 | 1096 | struct mlx5_flow_root_namespace *root = find_root(&ft->node); |
0d235c3f MB |
1097 | void *match_criteria = MLX5_ADDR_OF(create_flow_group_in, |
1098 | fg_in, match_criteria); | |
1099 | u8 match_criteria_enable = MLX5_GET(create_flow_group_in, | |
1100 | fg_in, | |
1101 | match_criteria_enable); | |
19f100fe MG |
1102 | int start_index = MLX5_GET(create_flow_group_in, fg_in, |
1103 | start_flow_index); | |
1104 | int end_index = MLX5_GET(create_flow_group_in, fg_in, | |
1105 | end_flow_index); | |
1106 | struct mlx5_core_dev *dev = get_dev(&ft->node); | |
f0d22d18 | 1107 | struct mlx5_flow_group *fg; |
19f100fe | 1108 | int err; |
f0d22d18 MG |
1109 | |
1110 | if (ft->autogroup.active) | |
1111 | return ERR_PTR(-EPERM); | |
1112 | ||
bd71b08e | 1113 | down_write_ref_node(&ft->node); |
19f100fe MG |
1114 | fg = alloc_insert_flow_group(ft, match_criteria_enable, match_criteria, |
1115 | start_index, end_index, | |
1116 | ft->node.children.prev); | |
bd71b08e | 1117 | up_write_ref_node(&ft->node); |
19f100fe MG |
1118 | if (IS_ERR(fg)) |
1119 | return fg; | |
1120 | ||
af76c501 | 1121 | err = root->cmds->create_flow_group(dev, ft, fg_in, &fg->id); |
19f100fe MG |
1122 | if (err) { |
1123 | tree_put_node(&fg->node); | |
1124 | return ERR_PTR(err); | |
1125 | } | |
1126 | trace_mlx5_fs_add_fg(fg); | |
1127 | fg->node.active = true; | |
0c56b975 MG |
1128 | |
1129 | return fg; | |
1130 | } | |
1131 | ||
1132 | static struct mlx5_flow_rule *alloc_rule(struct mlx5_flow_destination *dest) | |
1133 | { | |
1134 | struct mlx5_flow_rule *rule; | |
1135 | ||
1136 | rule = kzalloc(sizeof(*rule), GFP_KERNEL); | |
1137 | if (!rule) | |
1138 | return NULL; | |
1139 | ||
b3638e1a | 1140 | INIT_LIST_HEAD(&rule->next_ft); |
0c56b975 | 1141 | rule->node.type = FS_TYPE_FLOW_DEST; |
60ab4584 AV |
1142 | if (dest) |
1143 | memcpy(&rule->dest_attr, dest, sizeof(*dest)); | |
0c56b975 MG |
1144 | |
1145 | return rule; | |
1146 | } | |
1147 | ||
74491de9 MB |
1148 | static struct mlx5_flow_handle *alloc_handle(int num_rules) |
1149 | { | |
1150 | struct mlx5_flow_handle *handle; | |
1151 | ||
acafe7e3 | 1152 | handle = kzalloc(struct_size(handle, rule, num_rules), GFP_KERNEL); |
74491de9 MB |
1153 | if (!handle) |
1154 | return NULL; | |
1155 | ||
1156 | handle->num_rules = num_rules; | |
1157 | ||
1158 | return handle; | |
1159 | } | |
1160 | ||
1161 | static void destroy_flow_handle(struct fs_fte *fte, | |
1162 | struct mlx5_flow_handle *handle, | |
1163 | struct mlx5_flow_destination *dest, | |
1164 | int i) | |
1165 | { | |
1166 | for (; --i >= 0;) { | |
dd8e1945 | 1167 | if (refcount_dec_and_test(&handle->rule[i]->node.refcount)) { |
74491de9 MB |
1168 | fte->dests_size--; |
1169 | list_del(&handle->rule[i]->node.list); | |
1170 | kfree(handle->rule[i]); | |
1171 | } | |
1172 | } | |
1173 | kfree(handle); | |
1174 | } | |
1175 | ||
1176 | static struct mlx5_flow_handle * | |
1177 | create_flow_handle(struct fs_fte *fte, | |
1178 | struct mlx5_flow_destination *dest, | |
1179 | int dest_num, | |
1180 | int *modify_mask, | |
1181 | bool *new_rule) | |
1182 | { | |
1183 | struct mlx5_flow_handle *handle; | |
1184 | struct mlx5_flow_rule *rule = NULL; | |
1185 | static int count = BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_FLOW_COUNTERS); | |
1186 | static int dst = BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_DESTINATION_LIST); | |
1187 | int type; | |
1188 | int i = 0; | |
1189 | ||
1190 | handle = alloc_handle((dest_num) ? dest_num : 1); | |
1191 | if (!handle) | |
1192 | return ERR_PTR(-ENOMEM); | |
1193 | ||
1194 | do { | |
1195 | if (dest) { | |
1196 | rule = find_flow_rule(fte, dest + i); | |
1197 | if (rule) { | |
dd8e1945 | 1198 | refcount_inc(&rule->node.refcount); |
74491de9 MB |
1199 | goto rule_found; |
1200 | } | |
1201 | } | |
1202 | ||
1203 | *new_rule = true; | |
1204 | rule = alloc_rule(dest + i); | |
1205 | if (!rule) | |
1206 | goto free_rules; | |
1207 | ||
1208 | /* Add dest to dests list- we need flow tables to be in the | |
1209 | * end of the list for forward to next prio rules. | |
1210 | */ | |
bd71b08e | 1211 | tree_init_node(&rule->node, NULL, del_sw_hw_rule); |
74491de9 MB |
1212 | if (dest && |
1213 | dest[i].type != MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE) | |
1214 | list_add(&rule->node.list, &fte->node.children); | |
1215 | else | |
1216 | list_add_tail(&rule->node.list, &fte->node.children); | |
1217 | if (dest) { | |
1218 | fte->dests_size++; | |
1219 | ||
1220 | type = dest[i].type == | |
1221 | MLX5_FLOW_DESTINATION_TYPE_COUNTER; | |
1222 | *modify_mask |= type ? count : dst; | |
1223 | } | |
1224 | rule_found: | |
1225 | handle->rule[i] = rule; | |
1226 | } while (++i < dest_num); | |
1227 | ||
1228 | return handle; | |
1229 | ||
1230 | free_rules: | |
1231 | destroy_flow_handle(fte, handle, dest, i); | |
1232 | return ERR_PTR(-ENOMEM); | |
1233 | } | |
1234 | ||
0c56b975 | 1235 | /* fte should not be deleted while calling this function */ |
74491de9 MB |
1236 | static struct mlx5_flow_handle * |
1237 | add_rule_fte(struct fs_fte *fte, | |
1238 | struct mlx5_flow_group *fg, | |
1239 | struct mlx5_flow_destination *dest, | |
1240 | int dest_num, | |
1241 | bool update_action) | |
0c56b975 | 1242 | { |
af76c501 | 1243 | struct mlx5_flow_root_namespace *root; |
74491de9 | 1244 | struct mlx5_flow_handle *handle; |
0c56b975 | 1245 | struct mlx5_flow_table *ft; |
bd5251db | 1246 | int modify_mask = 0; |
0c56b975 | 1247 | int err; |
74491de9 | 1248 | bool new_rule = false; |
0c56b975 | 1249 | |
74491de9 MB |
1250 | handle = create_flow_handle(fte, dest, dest_num, &modify_mask, |
1251 | &new_rule); | |
1252 | if (IS_ERR(handle) || !new_rule) | |
1253 | goto out; | |
bd5251db | 1254 | |
a6224985 MB |
1255 | if (update_action) |
1256 | modify_mask |= BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_ACTION); | |
bd5251db | 1257 | |
0c56b975 | 1258 | fs_get_obj(ft, fg->node.parent); |
af76c501 | 1259 | root = find_root(&fg->node); |
0501fc47 | 1260 | if (!(fte->status & FS_FTE_STATUS_EXISTING)) |
af76c501 MB |
1261 | err = root->cmds->create_fte(get_dev(&ft->node), |
1262 | ft, fg, fte); | |
0c56b975 | 1263 | else |
af76c501 MB |
1264 | err = root->cmds->update_fte(get_dev(&ft->node), ft, fg->id, |
1265 | modify_mask, fte); | |
0c56b975 | 1266 | if (err) |
74491de9 | 1267 | goto free_handle; |
0c56b975 | 1268 | |
19f100fe | 1269 | fte->node.active = true; |
0c56b975 | 1270 | fte->status |= FS_FTE_STATUS_EXISTING; |
bd71b08e | 1271 | atomic_inc(&fte->node.version); |
0c56b975 | 1272 | |
74491de9 MB |
1273 | out: |
1274 | return handle; | |
0c56b975 | 1275 | |
74491de9 MB |
1276 | free_handle: |
1277 | destroy_flow_handle(fte, handle, dest, handle->num_rules); | |
0c56b975 MG |
1278 | return ERR_PTR(err); |
1279 | } | |
1280 | ||
19f100fe MG |
1281 | static struct mlx5_flow_group *alloc_auto_flow_group(struct mlx5_flow_table *ft, |
1282 | struct mlx5_flow_spec *spec) | |
0c56b975 | 1283 | { |
af363705 | 1284 | struct list_head *prev = &ft->node.children; |
f0d22d18 | 1285 | struct mlx5_flow_group *fg; |
19f100fe | 1286 | unsigned int candidate_index = 0; |
f0d22d18 | 1287 | unsigned int group_size = 0; |
f0d22d18 MG |
1288 | |
1289 | if (!ft->autogroup.active) | |
1290 | return ERR_PTR(-ENOENT); | |
1291 | ||
f0d22d18 MG |
1292 | if (ft->autogroup.num_groups < ft->autogroup.required_groups) |
1293 | /* We save place for flow groups in addition to max types */ | |
1294 | group_size = ft->max_fte / (ft->autogroup.required_groups + 1); | |
1295 | ||
1296 | /* ft->max_fte == ft->autogroup.max_types */ | |
1297 | if (group_size == 0) | |
1298 | group_size = 1; | |
1299 | ||
1300 | /* sorted by start_index */ | |
1301 | fs_for_each_fg(fg, ft) { | |
1302 | if (candidate_index + group_size > fg->start_index) | |
1303 | candidate_index = fg->start_index + fg->max_ftes; | |
1304 | else | |
1305 | break; | |
1306 | prev = &fg->node.list; | |
1307 | } | |
1308 | ||
19f100fe MG |
1309 | if (candidate_index + group_size > ft->max_fte) |
1310 | return ERR_PTR(-ENOSPC); | |
1311 | ||
1312 | fg = alloc_insert_flow_group(ft, | |
1313 | spec->match_criteria_enable, | |
1314 | spec->match_criteria, | |
1315 | candidate_index, | |
1316 | candidate_index + group_size - 1, | |
1317 | prev); | |
1318 | if (IS_ERR(fg)) | |
f0d22d18 | 1319 | goto out; |
19f100fe MG |
1320 | |
1321 | ft->autogroup.num_groups++; | |
1322 | ||
1323 | out: | |
1324 | return fg; | |
1325 | } | |
1326 | ||
1327 | static int create_auto_flow_group(struct mlx5_flow_table *ft, | |
1328 | struct mlx5_flow_group *fg) | |
1329 | { | |
af76c501 | 1330 | struct mlx5_flow_root_namespace *root = find_root(&ft->node); |
19f100fe MG |
1331 | struct mlx5_core_dev *dev = get_dev(&ft->node); |
1332 | int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); | |
1333 | void *match_criteria_addr; | |
3e99df87 SK |
1334 | u8 src_esw_owner_mask_on; |
1335 | void *misc; | |
19f100fe MG |
1336 | int err; |
1337 | u32 *in; | |
1338 | ||
1339 | in = kvzalloc(inlen, GFP_KERNEL); | |
1340 | if (!in) | |
1341 | return -ENOMEM; | |
f0d22d18 MG |
1342 | |
1343 | MLX5_SET(create_flow_group_in, in, match_criteria_enable, | |
19f100fe MG |
1344 | fg->mask.match_criteria_enable); |
1345 | MLX5_SET(create_flow_group_in, in, start_flow_index, fg->start_index); | |
1346 | MLX5_SET(create_flow_group_in, in, end_flow_index, fg->start_index + | |
1347 | fg->max_ftes - 1); | |
3e99df87 SK |
1348 | |
1349 | misc = MLX5_ADDR_OF(fte_match_param, fg->mask.match_criteria, | |
1350 | misc_parameters); | |
1351 | src_esw_owner_mask_on = !!MLX5_GET(fte_match_set_misc, misc, | |
1352 | source_eswitch_owner_vhca_id); | |
1353 | MLX5_SET(create_flow_group_in, in, | |
1354 | source_eswitch_owner_vhca_id_valid, src_esw_owner_mask_on); | |
1355 | ||
f0d22d18 MG |
1356 | match_criteria_addr = MLX5_ADDR_OF(create_flow_group_in, |
1357 | in, match_criteria); | |
19f100fe MG |
1358 | memcpy(match_criteria_addr, fg->mask.match_criteria, |
1359 | sizeof(fg->mask.match_criteria)); | |
1360 | ||
af76c501 | 1361 | err = root->cmds->create_flow_group(dev, ft, in, &fg->id); |
19f100fe MG |
1362 | if (!err) { |
1363 | fg->node.active = true; | |
1364 | trace_mlx5_fs_add_fg(fg); | |
1365 | } | |
f0d22d18 | 1366 | |
f0d22d18 | 1367 | kvfree(in); |
19f100fe | 1368 | return err; |
f0d22d18 MG |
1369 | } |
1370 | ||
814fb875 MB |
1371 | static bool mlx5_flow_dests_cmp(struct mlx5_flow_destination *d1, |
1372 | struct mlx5_flow_destination *d2) | |
1373 | { | |
1374 | if (d1->type == d2->type) { | |
1375 | if ((d1->type == MLX5_FLOW_DESTINATION_TYPE_VPORT && | |
1228e912 EB |
1376 | d1->vport.num == d2->vport.num && |
1377 | d1->vport.flags == d2->vport.flags && | |
1378 | ((d1->vport.flags & MLX5_FLOW_DEST_VPORT_REFORMAT_ID) ? | |
1379 | (d1->vport.reformat_id == d2->vport.reformat_id) : true)) || | |
814fb875 MB |
1380 | (d1->type == MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE && |
1381 | d1->ft == d2->ft) || | |
1382 | (d1->type == MLX5_FLOW_DESTINATION_TYPE_TIR && | |
664000b6 YH |
1383 | d1->tir_num == d2->tir_num) || |
1384 | (d1->type == MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE_NUM && | |
1385 | d1->ft_num == d2->ft_num)) | |
814fb875 MB |
1386 | return true; |
1387 | } | |
1388 | ||
1389 | return false; | |
1390 | } | |
1391 | ||
b3638e1a MG |
1392 | static struct mlx5_flow_rule *find_flow_rule(struct fs_fte *fte, |
1393 | struct mlx5_flow_destination *dest) | |
1394 | { | |
1395 | struct mlx5_flow_rule *rule; | |
1396 | ||
1397 | list_for_each_entry(rule, &fte->node.children, node.list) { | |
814fb875 MB |
1398 | if (mlx5_flow_dests_cmp(&rule->dest_attr, dest)) |
1399 | return rule; | |
b3638e1a MG |
1400 | } |
1401 | return NULL; | |
1402 | } | |
1403 | ||
0d235c3f MB |
1404 | static bool check_conflicting_actions(u32 action1, u32 action2) |
1405 | { | |
1406 | u32 xored_actions = action1 ^ action2; | |
1407 | ||
1408 | /* if one rule only wants to count, it's ok */ | |
1409 | if (action1 == MLX5_FLOW_CONTEXT_ACTION_COUNT || | |
1410 | action2 == MLX5_FLOW_CONTEXT_ACTION_COUNT) | |
1411 | return false; | |
1412 | ||
1413 | if (xored_actions & (MLX5_FLOW_CONTEXT_ACTION_DROP | | |
60786f09 | 1414 | MLX5_FLOW_CONTEXT_ACTION_PACKET_REFORMAT | |
96de67a7 | 1415 | MLX5_FLOW_CONTEXT_ACTION_DECAP | |
0c06897a OG |
1416 | MLX5_FLOW_CONTEXT_ACTION_MOD_HDR | |
1417 | MLX5_FLOW_CONTEXT_ACTION_VLAN_POP | | |
8da6fe2a JL |
1418 | MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH | |
1419 | MLX5_FLOW_CONTEXT_ACTION_VLAN_POP_2 | | |
1420 | MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH_2)) | |
0d235c3f MB |
1421 | return true; |
1422 | ||
1423 | return false; | |
1424 | } | |
1425 | ||
1426 | static int check_conflicting_ftes(struct fs_fte *fte, const struct mlx5_flow_act *flow_act) | |
1427 | { | |
d2ec6a35 | 1428 | if (check_conflicting_actions(flow_act->action, fte->action.action)) { |
0d235c3f MB |
1429 | mlx5_core_warn(get_dev(&fte->node), |
1430 | "Found two FTEs with conflicting actions\n"); | |
1431 | return -EEXIST; | |
1432 | } | |
1433 | ||
d5634fee | 1434 | if ((flow_act->flags & FLOW_ACT_HAS_TAG) && |
d2ec6a35 | 1435 | fte->action.flow_tag != flow_act->flow_tag) { |
0d235c3f MB |
1436 | mlx5_core_warn(get_dev(&fte->node), |
1437 | "FTE flow tag %u already exists with different flow tag %u\n", | |
d2ec6a35 | 1438 | fte->action.flow_tag, |
0d235c3f MB |
1439 | flow_act->flow_tag); |
1440 | return -EEXIST; | |
1441 | } | |
1442 | ||
1443 | return 0; | |
1444 | } | |
1445 | ||
74491de9 MB |
1446 | static struct mlx5_flow_handle *add_rule_fg(struct mlx5_flow_group *fg, |
1447 | u32 *match_value, | |
66958ed9 | 1448 | struct mlx5_flow_act *flow_act, |
74491de9 | 1449 | struct mlx5_flow_destination *dest, |
693c6883 MB |
1450 | int dest_num, |
1451 | struct fs_fte *fte) | |
0c56b975 | 1452 | { |
74491de9 | 1453 | struct mlx5_flow_handle *handle; |
bd71b08e | 1454 | int old_action; |
74491de9 | 1455 | int i; |
bd71b08e | 1456 | int ret; |
0c56b975 | 1457 | |
bd71b08e MG |
1458 | ret = check_conflicting_ftes(fte, flow_act); |
1459 | if (ret) | |
1460 | return ERR_PTR(ret); | |
0c56b975 | 1461 | |
d2ec6a35 MB |
1462 | old_action = fte->action.action; |
1463 | fte->action.action |= flow_act->action; | |
bd71b08e MG |
1464 | handle = add_rule_fte(fte, fg, dest, dest_num, |
1465 | old_action != flow_act->action); | |
74491de9 | 1466 | if (IS_ERR(handle)) { |
d2ec6a35 | 1467 | fte->action.action = old_action; |
693c6883 | 1468 | return handle; |
0c56b975 | 1469 | } |
bd71b08e | 1470 | trace_mlx5_fs_set_fte(fte, false); |
0c56b975 | 1471 | |
74491de9 | 1472 | for (i = 0; i < handle->num_rules; i++) { |
dd8e1945 | 1473 | if (refcount_read(&handle->rule[i]->node.refcount) == 1) { |
74491de9 | 1474 | tree_add_node(&handle->rule[i]->node, &fte->node); |
4c03e69a MB |
1475 | trace_mlx5_fs_add_rule(handle->rule[i]); |
1476 | } | |
74491de9 | 1477 | } |
74491de9 | 1478 | return handle; |
0c56b975 MG |
1479 | } |
1480 | ||
171c7625 | 1481 | static bool counter_is_valid(u32 action) |
bd5251db | 1482 | { |
ae058314 | 1483 | return (action & (MLX5_FLOW_CONTEXT_ACTION_DROP | |
eafa6abd | 1484 | MLX5_FLOW_CONTEXT_ACTION_FWD_DEST)); |
bd5251db AV |
1485 | } |
1486 | ||
d63cd286 MG |
1487 | static bool dest_is_valid(struct mlx5_flow_destination *dest, |
1488 | u32 action, | |
1489 | struct mlx5_flow_table *ft) | |
1490 | { | |
bd5251db | 1491 | if (dest && (dest->type == MLX5_FLOW_DESTINATION_TYPE_COUNTER)) |
171c7625 | 1492 | return counter_is_valid(action); |
bd5251db | 1493 | |
d63cd286 MG |
1494 | if (!(action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST)) |
1495 | return true; | |
1496 | ||
1497 | if (!dest || ((dest->type == | |
1498 | MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE) && | |
1499 | (dest->ft->level <= ft->level))) | |
1500 | return false; | |
1501 | return true; | |
1502 | } | |
1503 | ||
46719d77 MG |
1504 | struct match_list { |
1505 | struct list_head list; | |
693c6883 | 1506 | struct mlx5_flow_group *g; |
46719d77 MG |
1507 | }; |
1508 | ||
1509 | struct match_list_head { | |
1510 | struct list_head list; | |
1511 | struct match_list first; | |
1512 | }; | |
1513 | ||
1514 | static void free_match_list(struct match_list_head *head) | |
1515 | { | |
1516 | if (!list_empty(&head->list)) { | |
1517 | struct match_list *iter, *match_tmp; | |
1518 | ||
1519 | list_del(&head->first.list); | |
bd71b08e | 1520 | tree_put_node(&head->first.g->node); |
46719d77 MG |
1521 | list_for_each_entry_safe(iter, match_tmp, &head->list, |
1522 | list) { | |
bd71b08e | 1523 | tree_put_node(&iter->g->node); |
46719d77 MG |
1524 | list_del(&iter->list); |
1525 | kfree(iter); | |
1526 | } | |
1527 | } | |
1528 | } | |
1529 | ||
1530 | static int build_match_list(struct match_list_head *match_head, | |
1531 | struct mlx5_flow_table *ft, | |
1532 | struct mlx5_flow_spec *spec) | |
1533 | { | |
693c6883 | 1534 | struct rhlist_head *tmp, *list; |
46719d77 MG |
1535 | struct mlx5_flow_group *g; |
1536 | int err = 0; | |
693c6883 MB |
1537 | |
1538 | rcu_read_lock(); | |
46719d77 | 1539 | INIT_LIST_HEAD(&match_head->list); |
693c6883 MB |
1540 | /* Collect all fgs which has a matching match_criteria */ |
1541 | list = rhltable_lookup(&ft->fgs_hash, spec, rhash_fg); | |
46719d77 | 1542 | /* RCU is atomic, we can't execute FW commands here */ |
693c6883 MB |
1543 | rhl_for_each_entry_rcu(g, tmp, list, hash) { |
1544 | struct match_list *curr_match; | |
1545 | ||
46719d77 | 1546 | if (likely(list_empty(&match_head->list))) { |
bd71b08e MG |
1547 | if (!tree_get_node(&g->node)) |
1548 | continue; | |
46719d77 MG |
1549 | match_head->first.g = g; |
1550 | list_add_tail(&match_head->first.list, | |
1551 | &match_head->list); | |
693c6883 MB |
1552 | continue; |
1553 | } | |
693c6883 | 1554 | |
46719d77 | 1555 | curr_match = kmalloc(sizeof(*curr_match), GFP_ATOMIC); |
693c6883 | 1556 | if (!curr_match) { |
46719d77 MG |
1557 | free_match_list(match_head); |
1558 | err = -ENOMEM; | |
1559 | goto out; | |
693c6883 | 1560 | } |
bd71b08e MG |
1561 | if (!tree_get_node(&g->node)) { |
1562 | kfree(curr_match); | |
1563 | continue; | |
1564 | } | |
693c6883 | 1565 | curr_match->g = g; |
46719d77 | 1566 | list_add_tail(&curr_match->list, &match_head->list); |
693c6883 | 1567 | } |
46719d77 | 1568 | out: |
693c6883 | 1569 | rcu_read_unlock(); |
46719d77 MG |
1570 | return err; |
1571 | } | |
1572 | ||
bd71b08e MG |
1573 | static u64 matched_fgs_get_version(struct list_head *match_head) |
1574 | { | |
1575 | struct match_list *iter; | |
1576 | u64 version = 0; | |
1577 | ||
1578 | list_for_each_entry(iter, match_head, list) | |
1579 | version += (u64)atomic_read(&iter->g->node.version); | |
1580 | return version; | |
1581 | } | |
1582 | ||
ad9421e3 RD |
1583 | static struct fs_fte * |
1584 | lookup_fte_locked(struct mlx5_flow_group *g, | |
1585 | u32 *match_value, | |
1586 | bool take_write) | |
1587 | { | |
1588 | struct fs_fte *fte_tmp; | |
1589 | ||
1590 | if (take_write) | |
1591 | nested_down_write_ref_node(&g->node, FS_LOCK_PARENT); | |
1592 | else | |
1593 | nested_down_read_ref_node(&g->node, FS_LOCK_PARENT); | |
1594 | fte_tmp = rhashtable_lookup_fast(&g->ftes_hash, match_value, | |
1595 | rhash_fte); | |
1596 | if (!fte_tmp || !tree_get_node(&fte_tmp->node)) { | |
1597 | fte_tmp = NULL; | |
1598 | goto out; | |
1599 | } | |
1600 | ||
1601 | nested_down_write_ref_node(&fte_tmp->node, FS_LOCK_CHILD); | |
1602 | out: | |
1603 | if (take_write) | |
1604 | up_write_ref_node(&g->node); | |
1605 | else | |
1606 | up_read_ref_node(&g->node); | |
1607 | return fte_tmp; | |
1608 | } | |
1609 | ||
46719d77 MG |
1610 | static struct mlx5_flow_handle * |
1611 | try_add_to_existing_fg(struct mlx5_flow_table *ft, | |
bd71b08e | 1612 | struct list_head *match_head, |
46719d77 MG |
1613 | struct mlx5_flow_spec *spec, |
1614 | struct mlx5_flow_act *flow_act, | |
1615 | struct mlx5_flow_destination *dest, | |
bd71b08e MG |
1616 | int dest_num, |
1617 | int ft_version) | |
46719d77 | 1618 | { |
a369d4ac | 1619 | struct mlx5_flow_steering *steering = get_steering(&ft->node); |
46719d77 MG |
1620 | struct mlx5_flow_group *g; |
1621 | struct mlx5_flow_handle *rule; | |
46719d77 | 1622 | struct match_list *iter; |
bd71b08e MG |
1623 | bool take_write = false; |
1624 | struct fs_fte *fte; | |
1625 | u64 version; | |
f5c2ff17 MG |
1626 | int err; |
1627 | ||
a369d4ac | 1628 | fte = alloc_fte(ft, spec->match_value, flow_act); |
f5c2ff17 MG |
1629 | if (IS_ERR(fte)) |
1630 | return ERR_PTR(-ENOMEM); | |
46719d77 | 1631 | |
bd71b08e MG |
1632 | search_again_locked: |
1633 | version = matched_fgs_get_version(match_head); | |
d5634fee PB |
1634 | if (flow_act->flags & FLOW_ACT_NO_APPEND) |
1635 | goto skip_search; | |
693c6883 | 1636 | /* Try to find a fg that already contains a matching fte */ |
bd71b08e MG |
1637 | list_for_each_entry(iter, match_head, list) { |
1638 | struct fs_fte *fte_tmp; | |
693c6883 MB |
1639 | |
1640 | g = iter->g; | |
ad9421e3 RD |
1641 | fte_tmp = lookup_fte_locked(g, spec->match_value, take_write); |
1642 | if (!fte_tmp) | |
bd71b08e | 1643 | continue; |
bd71b08e MG |
1644 | rule = add_rule_fg(g, spec->match_value, |
1645 | flow_act, dest, dest_num, fte_tmp); | |
1646 | up_write_ref_node(&fte_tmp->node); | |
1647 | tree_put_node(&fte_tmp->node); | |
a369d4ac | 1648 | kmem_cache_free(steering->ftes_cache, fte); |
bd71b08e | 1649 | return rule; |
693c6883 MB |
1650 | } |
1651 | ||
d5634fee PB |
1652 | skip_search: |
1653 | /* No group with matching fte found, or we skipped the search. | |
1654 | * Try to add a new fte to any matching fg. | |
1655 | */ | |
1656 | ||
bd71b08e MG |
1657 | /* Check the ft version, for case that new flow group |
1658 | * was added while the fgs weren't locked | |
1659 | */ | |
1660 | if (atomic_read(&ft->node.version) != ft_version) { | |
1661 | rule = ERR_PTR(-EAGAIN); | |
1662 | goto out; | |
1663 | } | |
b92af5a7 | 1664 | |
bd71b08e MG |
1665 | /* Check the fgs version, for case the new FTE with the |
1666 | * same values was added while the fgs weren't locked | |
1667 | */ | |
ad9421e3 RD |
1668 | if (version != matched_fgs_get_version(match_head)) { |
1669 | take_write = true; | |
bd71b08e | 1670 | goto search_again_locked; |
ad9421e3 | 1671 | } |
bd71b08e MG |
1672 | |
1673 | list_for_each_entry(iter, match_head, list) { | |
1674 | g = iter->g; | |
1675 | ||
1676 | if (!g->node.active) | |
1677 | continue; | |
ad9421e3 RD |
1678 | |
1679 | nested_down_write_ref_node(&g->node, FS_LOCK_PARENT); | |
1680 | ||
f5c2ff17 MG |
1681 | err = insert_fte(g, fte); |
1682 | if (err) { | |
ad9421e3 | 1683 | up_write_ref_node(&g->node); |
f5c2ff17 | 1684 | if (err == -ENOSPC) |
bd71b08e | 1685 | continue; |
a369d4ac | 1686 | kmem_cache_free(steering->ftes_cache, fte); |
f5c2ff17 | 1687 | return ERR_PTR(err); |
bd71b08e | 1688 | } |
693c6883 | 1689 | |
bd71b08e | 1690 | nested_down_write_ref_node(&fte->node, FS_LOCK_CHILD); |
ad9421e3 | 1691 | up_write_ref_node(&g->node); |
bd71b08e MG |
1692 | rule = add_rule_fg(g, spec->match_value, |
1693 | flow_act, dest, dest_num, fte); | |
1694 | up_write_ref_node(&fte->node); | |
1695 | tree_put_node(&fte->node); | |
1696 | return rule; | |
1697 | } | |
1698 | rule = ERR_PTR(-ENOENT); | |
1699 | out: | |
a369d4ac | 1700 | kmem_cache_free(steering->ftes_cache, fte); |
693c6883 MB |
1701 | return rule; |
1702 | } | |
1703 | ||
74491de9 MB |
1704 | static struct mlx5_flow_handle * |
1705 | _mlx5_add_flow_rules(struct mlx5_flow_table *ft, | |
1706 | struct mlx5_flow_spec *spec, | |
66958ed9 | 1707 | struct mlx5_flow_act *flow_act, |
74491de9 MB |
1708 | struct mlx5_flow_destination *dest, |
1709 | int dest_num) | |
66958ed9 | 1710 | |
0c56b975 | 1711 | { |
a369d4ac | 1712 | struct mlx5_flow_steering *steering = get_steering(&ft->node); |
0c56b975 | 1713 | struct mlx5_flow_group *g; |
74491de9 | 1714 | struct mlx5_flow_handle *rule; |
bd71b08e MG |
1715 | struct match_list_head match_head; |
1716 | bool take_write = false; | |
1717 | struct fs_fte *fte; | |
1718 | int version; | |
19f100fe | 1719 | int err; |
74491de9 | 1720 | int i; |
0c56b975 | 1721 | |
693c6883 | 1722 | if (!check_valid_spec(spec)) |
0d235c3f MB |
1723 | return ERR_PTR(-EINVAL); |
1724 | ||
74491de9 | 1725 | for (i = 0; i < dest_num; i++) { |
66958ed9 | 1726 | if (!dest_is_valid(&dest[i], flow_act->action, ft)) |
74491de9 MB |
1727 | return ERR_PTR(-EINVAL); |
1728 | } | |
bd71b08e MG |
1729 | nested_down_read_ref_node(&ft->node, FS_LOCK_GRANDPARENT); |
1730 | search_again_locked: | |
1731 | version = atomic_read(&ft->node.version); | |
60ab4584 | 1732 | |
bd71b08e MG |
1733 | /* Collect all fgs which has a matching match_criteria */ |
1734 | err = build_match_list(&match_head, ft, spec); | |
9238e380 VB |
1735 | if (err) { |
1736 | if (take_write) | |
1737 | up_write_ref_node(&ft->node); | |
07130477 RD |
1738 | else |
1739 | up_read_ref_node(&ft->node); | |
bd71b08e | 1740 | return ERR_PTR(err); |
9238e380 | 1741 | } |
bd71b08e MG |
1742 | |
1743 | if (!take_write) | |
1744 | up_read_ref_node(&ft->node); | |
1745 | ||
1746 | rule = try_add_to_existing_fg(ft, &match_head.list, spec, flow_act, dest, | |
1747 | dest_num, version); | |
1748 | free_match_list(&match_head); | |
1749 | if (!IS_ERR(rule) || | |
9238e380 VB |
1750 | (PTR_ERR(rule) != -ENOENT && PTR_ERR(rule) != -EAGAIN)) { |
1751 | if (take_write) | |
1752 | up_write_ref_node(&ft->node); | |
bd71b08e | 1753 | return rule; |
9238e380 | 1754 | } |
bd71b08e MG |
1755 | |
1756 | if (!take_write) { | |
1757 | nested_down_write_ref_node(&ft->node, FS_LOCK_GRANDPARENT); | |
1758 | take_write = true; | |
1759 | } | |
1760 | ||
1761 | if (PTR_ERR(rule) == -EAGAIN || | |
1762 | version != atomic_read(&ft->node.version)) | |
1763 | goto search_again_locked; | |
f0d22d18 | 1764 | |
19f100fe | 1765 | g = alloc_auto_flow_group(ft, spec); |
c3f9bf62 | 1766 | if (IS_ERR(g)) { |
d34c6efc | 1767 | rule = ERR_CAST(g); |
bd71b08e MG |
1768 | up_write_ref_node(&ft->node); |
1769 | return rule; | |
c3f9bf62 MG |
1770 | } |
1771 | ||
bd71b08e MG |
1772 | nested_down_write_ref_node(&g->node, FS_LOCK_PARENT); |
1773 | up_write_ref_node(&ft->node); | |
1774 | ||
19f100fe | 1775 | err = create_auto_flow_group(ft, g); |
bd71b08e MG |
1776 | if (err) |
1777 | goto err_release_fg; | |
1778 | ||
a369d4ac | 1779 | fte = alloc_fte(ft, spec->match_value, flow_act); |
bd71b08e MG |
1780 | if (IS_ERR(fte)) { |
1781 | err = PTR_ERR(fte); | |
1782 | goto err_release_fg; | |
19f100fe MG |
1783 | } |
1784 | ||
f5c2ff17 MG |
1785 | err = insert_fte(g, fte); |
1786 | if (err) { | |
a369d4ac | 1787 | kmem_cache_free(steering->ftes_cache, fte); |
f5c2ff17 MG |
1788 | goto err_release_fg; |
1789 | } | |
1790 | ||
bd71b08e MG |
1791 | nested_down_write_ref_node(&fte->node, FS_LOCK_CHILD); |
1792 | up_write_ref_node(&g->node); | |
693c6883 | 1793 | rule = add_rule_fg(g, spec->match_value, flow_act, dest, |
bd71b08e MG |
1794 | dest_num, fte); |
1795 | up_write_ref_node(&fte->node); | |
1796 | tree_put_node(&fte->node); | |
19f100fe | 1797 | tree_put_node(&g->node); |
0c56b975 | 1798 | return rule; |
bd71b08e MG |
1799 | |
1800 | err_release_fg: | |
1801 | up_write_ref_node(&g->node); | |
1802 | tree_put_node(&g->node); | |
1803 | return ERR_PTR(err); | |
0c56b975 | 1804 | } |
b3638e1a MG |
1805 | |
1806 | static bool fwd_next_prio_supported(struct mlx5_flow_table *ft) | |
1807 | { | |
1808 | return ((ft->type == FS_FT_NIC_RX) && | |
1809 | (MLX5_CAP_FLOWTABLE(get_dev(&ft->node), nic_rx_multi_path_tirs))); | |
1810 | } | |
1811 | ||
74491de9 MB |
1812 | struct mlx5_flow_handle * |
1813 | mlx5_add_flow_rules(struct mlx5_flow_table *ft, | |
1814 | struct mlx5_flow_spec *spec, | |
66958ed9 | 1815 | struct mlx5_flow_act *flow_act, |
74491de9 | 1816 | struct mlx5_flow_destination *dest, |
cf916ffb | 1817 | int num_dest) |
b3638e1a MG |
1818 | { |
1819 | struct mlx5_flow_root_namespace *root = find_root(&ft->node); | |
4c5009c5 | 1820 | struct mlx5_flow_destination gen_dest = {}; |
b3638e1a | 1821 | struct mlx5_flow_table *next_ft = NULL; |
74491de9 | 1822 | struct mlx5_flow_handle *handle = NULL; |
66958ed9 | 1823 | u32 sw_action = flow_act->action; |
b3638e1a MG |
1824 | struct fs_prio *prio; |
1825 | ||
1826 | fs_get_obj(prio, ft->node.parent); | |
66958ed9 | 1827 | if (flow_act->action == MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO) { |
b3638e1a MG |
1828 | if (!fwd_next_prio_supported(ft)) |
1829 | return ERR_PTR(-EOPNOTSUPP); | |
cf916ffb | 1830 | if (num_dest) |
b3638e1a MG |
1831 | return ERR_PTR(-EINVAL); |
1832 | mutex_lock(&root->chain_lock); | |
1833 | next_ft = find_next_chained_ft(prio); | |
1834 | if (next_ft) { | |
1835 | gen_dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; | |
1836 | gen_dest.ft = next_ft; | |
1837 | dest = &gen_dest; | |
cf916ffb | 1838 | num_dest = 1; |
66958ed9 | 1839 | flow_act->action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; |
b3638e1a MG |
1840 | } else { |
1841 | mutex_unlock(&root->chain_lock); | |
1842 | return ERR_PTR(-EOPNOTSUPP); | |
1843 | } | |
1844 | } | |
1845 | ||
cf916ffb | 1846 | handle = _mlx5_add_flow_rules(ft, spec, flow_act, dest, num_dest); |
b3638e1a MG |
1847 | |
1848 | if (sw_action == MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO) { | |
74491de9 MB |
1849 | if (!IS_ERR_OR_NULL(handle) && |
1850 | (list_empty(&handle->rule[0]->next_ft))) { | |
b3638e1a | 1851 | mutex_lock(&next_ft->lock); |
74491de9 MB |
1852 | list_add(&handle->rule[0]->next_ft, |
1853 | &next_ft->fwd_rules); | |
b3638e1a | 1854 | mutex_unlock(&next_ft->lock); |
74491de9 | 1855 | handle->rule[0]->sw_action = MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO; |
b3638e1a MG |
1856 | } |
1857 | mutex_unlock(&root->chain_lock); | |
1858 | } | |
74491de9 | 1859 | return handle; |
b3638e1a | 1860 | } |
74491de9 | 1861 | EXPORT_SYMBOL(mlx5_add_flow_rules); |
0c56b975 | 1862 | |
74491de9 | 1863 | void mlx5_del_flow_rules(struct mlx5_flow_handle *handle) |
0c56b975 | 1864 | { |
74491de9 MB |
1865 | int i; |
1866 | ||
1867 | for (i = handle->num_rules - 1; i >= 0; i--) | |
1868 | tree_remove_node(&handle->rule[i]->node); | |
1869 | kfree(handle); | |
0c56b975 | 1870 | } |
74491de9 | 1871 | EXPORT_SYMBOL(mlx5_del_flow_rules); |
0c56b975 | 1872 | |
2cc43b49 MG |
1873 | /* Assuming prio->node.children(flow tables) is sorted by level */ |
1874 | static struct mlx5_flow_table *find_next_ft(struct mlx5_flow_table *ft) | |
1875 | { | |
1876 | struct fs_prio *prio; | |
1877 | ||
1878 | fs_get_obj(prio, ft->node.parent); | |
1879 | ||
1880 | if (!list_is_last(&ft->node.list, &prio->node.children)) | |
1881 | return list_next_entry(ft, node.list); | |
1882 | return find_next_chained_ft(prio); | |
1883 | } | |
1884 | ||
1885 | static int update_root_ft_destroy(struct mlx5_flow_table *ft) | |
1886 | { | |
1887 | struct mlx5_flow_root_namespace *root = find_root(&ft->node); | |
dae37456 | 1888 | struct mlx5_ft_underlay_qp *uqp; |
2cc43b49 | 1889 | struct mlx5_flow_table *new_root_ft = NULL; |
dae37456 AV |
1890 | int err = 0; |
1891 | u32 qpn; | |
2cc43b49 MG |
1892 | |
1893 | if (root->root_ft != ft) | |
1894 | return 0; | |
1895 | ||
1896 | new_root_ft = find_next_ft(ft); | |
dae37456 AV |
1897 | if (!new_root_ft) { |
1898 | root->root_ft = NULL; | |
1899 | return 0; | |
1900 | } | |
1901 | ||
1902 | if (list_empty(&root->underlay_qpns)) { | |
1903 | /* Don't set any QPN (zero) in case QPN list is empty */ | |
1904 | qpn = 0; | |
af76c501 MB |
1905 | err = root->cmds->update_root_ft(root->dev, new_root_ft, |
1906 | qpn, false); | |
dae37456 AV |
1907 | } else { |
1908 | list_for_each_entry(uqp, &root->underlay_qpns, list) { | |
1909 | qpn = uqp->qpn; | |
af76c501 MB |
1910 | err = root->cmds->update_root_ft(root->dev, |
1911 | new_root_ft, qpn, | |
1912 | false); | |
dae37456 AV |
1913 | if (err) |
1914 | break; | |
2cc43b49 | 1915 | } |
2cc43b49 | 1916 | } |
dae37456 AV |
1917 | |
1918 | if (err) | |
1919 | mlx5_core_warn(root->dev, | |
1920 | "Update root flow table of id(%u) qpn(%d) failed\n", | |
1921 | ft->id, qpn); | |
1922 | else | |
1923 | root->root_ft = new_root_ft; | |
1924 | ||
2cc43b49 MG |
1925 | return 0; |
1926 | } | |
1927 | ||
f90edfd2 MG |
1928 | /* Connect flow table from previous priority to |
1929 | * the next flow table. | |
1930 | */ | |
1931 | static int disconnect_flow_table(struct mlx5_flow_table *ft) | |
1932 | { | |
1933 | struct mlx5_core_dev *dev = get_dev(&ft->node); | |
1934 | struct mlx5_flow_table *next_ft; | |
1935 | struct fs_prio *prio; | |
1936 | int err = 0; | |
1937 | ||
1938 | err = update_root_ft_destroy(ft); | |
1939 | if (err) | |
1940 | return err; | |
1941 | ||
1942 | fs_get_obj(prio, ft->node.parent); | |
1943 | if (!(list_first_entry(&prio->node.children, | |
1944 | struct mlx5_flow_table, | |
1945 | node.list) == ft)) | |
1946 | return 0; | |
1947 | ||
1948 | next_ft = find_next_chained_ft(prio); | |
b3638e1a MG |
1949 | err = connect_fwd_rules(dev, next_ft, ft); |
1950 | if (err) | |
1951 | return err; | |
1952 | ||
f90edfd2 MG |
1953 | err = connect_prev_fts(dev, next_ft, prio); |
1954 | if (err) | |
1955 | mlx5_core_warn(dev, "Failed to disconnect flow table %d\n", | |
1956 | ft->id); | |
1957 | return err; | |
1958 | } | |
1959 | ||
86d722ad | 1960 | int mlx5_destroy_flow_table(struct mlx5_flow_table *ft) |
0c56b975 | 1961 | { |
2cc43b49 MG |
1962 | struct mlx5_flow_root_namespace *root = find_root(&ft->node); |
1963 | int err = 0; | |
1964 | ||
1965 | mutex_lock(&root->chain_lock); | |
f90edfd2 | 1966 | err = disconnect_flow_table(ft); |
2cc43b49 MG |
1967 | if (err) { |
1968 | mutex_unlock(&root->chain_lock); | |
1969 | return err; | |
1970 | } | |
0c56b975 MG |
1971 | if (tree_remove_node(&ft->node)) |
1972 | mlx5_core_warn(get_dev(&ft->node), "Flow table %d wasn't destroyed, refcount > 1\n", | |
1973 | ft->id); | |
2cc43b49 | 1974 | mutex_unlock(&root->chain_lock); |
0c56b975 | 1975 | |
2cc43b49 | 1976 | return err; |
0c56b975 | 1977 | } |
b217ea25 | 1978 | EXPORT_SYMBOL(mlx5_destroy_flow_table); |
0c56b975 | 1979 | |
86d722ad | 1980 | void mlx5_destroy_flow_group(struct mlx5_flow_group *fg) |
0c56b975 MG |
1981 | { |
1982 | if (tree_remove_node(&fg->node)) | |
1983 | mlx5_core_warn(get_dev(&fg->node), "Flow group %d wasn't destroyed, refcount > 1\n", | |
1984 | fg->id); | |
1985 | } | |
25302363 | 1986 | |
328edb49 PB |
1987 | struct mlx5_flow_namespace *mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, |
1988 | int n) | |
1989 | { | |
1990 | struct mlx5_flow_steering *steering = dev->priv.steering; | |
1991 | ||
1992 | if (!steering || !steering->fdb_sub_ns) | |
1993 | return NULL; | |
1994 | ||
1995 | return steering->fdb_sub_ns[n]; | |
1996 | } | |
1997 | EXPORT_SYMBOL(mlx5_get_fdb_sub_ns); | |
1998 | ||
86d722ad MG |
1999 | struct mlx5_flow_namespace *mlx5_get_flow_namespace(struct mlx5_core_dev *dev, |
2000 | enum mlx5_flow_namespace_type type) | |
25302363 | 2001 | { |
fba53f7b MG |
2002 | struct mlx5_flow_steering *steering = dev->priv.steering; |
2003 | struct mlx5_flow_root_namespace *root_ns; | |
8ce78257 | 2004 | int prio = 0; |
78228cbd | 2005 | struct fs_prio *fs_prio; |
25302363 MG |
2006 | struct mlx5_flow_namespace *ns; |
2007 | ||
fba53f7b | 2008 | if (!steering) |
25302363 MG |
2009 | return NULL; |
2010 | ||
2011 | switch (type) { | |
25302363 | 2012 | case MLX5_FLOW_NAMESPACE_FDB: |
fba53f7b MG |
2013 | if (steering->fdb_root_ns) |
2014 | return &steering->fdb_root_ns->ns; | |
2226dcb4 | 2015 | return NULL; |
87d22483 MG |
2016 | case MLX5_FLOW_NAMESPACE_SNIFFER_RX: |
2017 | if (steering->sniffer_rx_root_ns) | |
2018 | return &steering->sniffer_rx_root_ns->ns; | |
2226dcb4 | 2019 | return NULL; |
87d22483 MG |
2020 | case MLX5_FLOW_NAMESPACE_SNIFFER_TX: |
2021 | if (steering->sniffer_tx_root_ns) | |
2022 | return &steering->sniffer_tx_root_ns->ns; | |
25302363 | 2023 | return NULL; |
2226dcb4 MB |
2024 | default: |
2025 | break; | |
25302363 MG |
2026 | } |
2027 | ||
8ce78257 MB |
2028 | if (type == MLX5_FLOW_NAMESPACE_EGRESS) { |
2029 | root_ns = steering->egress_root_ns; | |
2030 | } else { /* Must be NIC RX */ | |
2031 | root_ns = steering->root_ns; | |
2032 | prio = type; | |
25302363 MG |
2033 | } |
2034 | ||
fba53f7b MG |
2035 | if (!root_ns) |
2036 | return NULL; | |
2037 | ||
25302363 MG |
2038 | fs_prio = find_prio(&root_ns->ns, prio); |
2039 | if (!fs_prio) | |
2040 | return NULL; | |
2041 | ||
2042 | ns = list_first_entry(&fs_prio->node.children, | |
2043 | typeof(*ns), | |
2044 | node.list); | |
2045 | ||
2046 | return ns; | |
2047 | } | |
b217ea25 | 2048 | EXPORT_SYMBOL(mlx5_get_flow_namespace); |
25302363 | 2049 | |
9b93ab98 GP |
2050 | struct mlx5_flow_namespace *mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev, |
2051 | enum mlx5_flow_namespace_type type, | |
2052 | int vport) | |
2053 | { | |
2054 | struct mlx5_flow_steering *steering = dev->priv.steering; | |
2055 | ||
2056 | if (!steering || vport >= MLX5_TOTAL_VPORTS(dev)) | |
2057 | return NULL; | |
2058 | ||
2059 | switch (type) { | |
2060 | case MLX5_FLOW_NAMESPACE_ESW_EGRESS: | |
2061 | if (steering->esw_egress_root_ns && | |
2062 | steering->esw_egress_root_ns[vport]) | |
2063 | return &steering->esw_egress_root_ns[vport]->ns; | |
2064 | else | |
2065 | return NULL; | |
2066 | case MLX5_FLOW_NAMESPACE_ESW_INGRESS: | |
2067 | if (steering->esw_ingress_root_ns && | |
2068 | steering->esw_ingress_root_ns[vport]) | |
2069 | return &steering->esw_ingress_root_ns[vport]->ns; | |
2070 | else | |
2071 | return NULL; | |
2072 | default: | |
2073 | return NULL; | |
2074 | } | |
2075 | } | |
2076 | ||
328edb49 PB |
2077 | static struct fs_prio *_fs_create_prio(struct mlx5_flow_namespace *ns, |
2078 | unsigned int prio, | |
2079 | int num_levels, | |
2080 | enum fs_node_type type) | |
25302363 MG |
2081 | { |
2082 | struct fs_prio *fs_prio; | |
2083 | ||
2084 | fs_prio = kzalloc(sizeof(*fs_prio), GFP_KERNEL); | |
2085 | if (!fs_prio) | |
2086 | return ERR_PTR(-ENOMEM); | |
2087 | ||
328edb49 | 2088 | fs_prio->node.type = type; |
139ed6c6 | 2089 | tree_init_node(&fs_prio->node, NULL, del_sw_prio); |
25302363 | 2090 | tree_add_node(&fs_prio->node, &ns->node); |
a257b94a | 2091 | fs_prio->num_levels = num_levels; |
25302363 | 2092 | fs_prio->prio = prio; |
25302363 MG |
2093 | list_add_tail(&fs_prio->node.list, &ns->node.children); |
2094 | ||
2095 | return fs_prio; | |
2096 | } | |
2097 | ||
328edb49 PB |
2098 | static struct fs_prio *fs_create_prio_chained(struct mlx5_flow_namespace *ns, |
2099 | unsigned int prio, | |
2100 | int num_levels) | |
2101 | { | |
2102 | return _fs_create_prio(ns, prio, num_levels, FS_TYPE_PRIO_CHAINS); | |
2103 | } | |
2104 | ||
2105 | static struct fs_prio *fs_create_prio(struct mlx5_flow_namespace *ns, | |
2106 | unsigned int prio, int num_levels) | |
2107 | { | |
2108 | return _fs_create_prio(ns, prio, num_levels, FS_TYPE_PRIO); | |
2109 | } | |
2110 | ||
25302363 MG |
2111 | static struct mlx5_flow_namespace *fs_init_namespace(struct mlx5_flow_namespace |
2112 | *ns) | |
2113 | { | |
2114 | ns->node.type = FS_TYPE_NAMESPACE; | |
2115 | ||
2116 | return ns; | |
2117 | } | |
2118 | ||
2119 | static struct mlx5_flow_namespace *fs_create_namespace(struct fs_prio *prio) | |
2120 | { | |
2121 | struct mlx5_flow_namespace *ns; | |
2122 | ||
2123 | ns = kzalloc(sizeof(*ns), GFP_KERNEL); | |
2124 | if (!ns) | |
2125 | return ERR_PTR(-ENOMEM); | |
2126 | ||
2127 | fs_init_namespace(ns); | |
139ed6c6 | 2128 | tree_init_node(&ns->node, NULL, del_sw_ns); |
25302363 MG |
2129 | tree_add_node(&ns->node, &prio->node); |
2130 | list_add_tail(&ns->node.list, &prio->node.children); | |
2131 | ||
2132 | return ns; | |
2133 | } | |
2134 | ||
13de6c10 MG |
2135 | static int create_leaf_prios(struct mlx5_flow_namespace *ns, int prio, |
2136 | struct init_tree_node *prio_metadata) | |
4cbdd30e MG |
2137 | { |
2138 | struct fs_prio *fs_prio; | |
2139 | int i; | |
2140 | ||
2141 | for (i = 0; i < prio_metadata->num_leaf_prios; i++) { | |
13de6c10 | 2142 | fs_prio = fs_create_prio(ns, prio++, prio_metadata->num_levels); |
4cbdd30e MG |
2143 | if (IS_ERR(fs_prio)) |
2144 | return PTR_ERR(fs_prio); | |
2145 | } | |
2146 | return 0; | |
2147 | } | |
2148 | ||
8d40d162 MG |
2149 | #define FLOW_TABLE_BIT_SZ 1 |
2150 | #define GET_FLOW_TABLE_CAP(dev, offset) \ | |
701052c5 | 2151 | ((be32_to_cpu(*((__be32 *)(dev->caps.hca_cur[MLX5_CAP_FLOW_TABLE]) + \ |
8d40d162 MG |
2152 | offset / 32)) >> \ |
2153 | (32 - FLOW_TABLE_BIT_SZ - (offset & 0x1f))) & FLOW_TABLE_BIT_SZ) | |
2154 | static bool has_required_caps(struct mlx5_core_dev *dev, struct node_caps *caps) | |
2155 | { | |
2156 | int i; | |
2157 | ||
2158 | for (i = 0; i < caps->arr_sz; i++) { | |
2159 | if (!GET_FLOW_TABLE_CAP(dev, caps->caps[i])) | |
2160 | return false; | |
2161 | } | |
2162 | return true; | |
2163 | } | |
2164 | ||
fba53f7b | 2165 | static int init_root_tree_recursive(struct mlx5_flow_steering *steering, |
8d40d162 | 2166 | struct init_tree_node *init_node, |
25302363 MG |
2167 | struct fs_node *fs_parent_node, |
2168 | struct init_tree_node *init_parent_node, | |
13de6c10 | 2169 | int prio) |
25302363 | 2170 | { |
fba53f7b | 2171 | int max_ft_level = MLX5_CAP_FLOWTABLE(steering->dev, |
8d40d162 MG |
2172 | flow_table_properties_nic_receive. |
2173 | max_ft_level); | |
25302363 MG |
2174 | struct mlx5_flow_namespace *fs_ns; |
2175 | struct fs_prio *fs_prio; | |
2176 | struct fs_node *base; | |
2177 | int i; | |
2178 | int err; | |
2179 | ||
2180 | if (init_node->type == FS_TYPE_PRIO) { | |
8d40d162 | 2181 | if ((init_node->min_ft_level > max_ft_level) || |
fba53f7b | 2182 | !has_required_caps(steering->dev, &init_node->caps)) |
8d40d162 | 2183 | return 0; |
25302363 MG |
2184 | |
2185 | fs_get_obj(fs_ns, fs_parent_node); | |
4cbdd30e | 2186 | if (init_node->num_leaf_prios) |
13de6c10 MG |
2187 | return create_leaf_prios(fs_ns, prio, init_node); |
2188 | fs_prio = fs_create_prio(fs_ns, prio, init_node->num_levels); | |
25302363 MG |
2189 | if (IS_ERR(fs_prio)) |
2190 | return PTR_ERR(fs_prio); | |
2191 | base = &fs_prio->node; | |
2192 | } else if (init_node->type == FS_TYPE_NAMESPACE) { | |
2193 | fs_get_obj(fs_prio, fs_parent_node); | |
2194 | fs_ns = fs_create_namespace(fs_prio); | |
2195 | if (IS_ERR(fs_ns)) | |
2196 | return PTR_ERR(fs_ns); | |
2197 | base = &fs_ns->node; | |
2198 | } else { | |
2199 | return -EINVAL; | |
2200 | } | |
13de6c10 | 2201 | prio = 0; |
25302363 | 2202 | for (i = 0; i < init_node->ar_size; i++) { |
fba53f7b | 2203 | err = init_root_tree_recursive(steering, &init_node->children[i], |
13de6c10 | 2204 | base, init_node, prio); |
25302363 MG |
2205 | if (err) |
2206 | return err; | |
13de6c10 MG |
2207 | if (init_node->children[i].type == FS_TYPE_PRIO && |
2208 | init_node->children[i].num_leaf_prios) { | |
2209 | prio += init_node->children[i].num_leaf_prios; | |
2210 | } | |
25302363 MG |
2211 | } |
2212 | ||
2213 | return 0; | |
2214 | } | |
2215 | ||
fba53f7b | 2216 | static int init_root_tree(struct mlx5_flow_steering *steering, |
8d40d162 | 2217 | struct init_tree_node *init_node, |
25302363 MG |
2218 | struct fs_node *fs_parent_node) |
2219 | { | |
2220 | int i; | |
2221 | struct mlx5_flow_namespace *fs_ns; | |
2222 | int err; | |
2223 | ||
2224 | fs_get_obj(fs_ns, fs_parent_node); | |
2225 | for (i = 0; i < init_node->ar_size; i++) { | |
fba53f7b | 2226 | err = init_root_tree_recursive(steering, &init_node->children[i], |
25302363 MG |
2227 | &fs_ns->node, |
2228 | init_node, i); | |
2229 | if (err) | |
2230 | return err; | |
2231 | } | |
2232 | return 0; | |
2233 | } | |
2234 | ||
af76c501 MB |
2235 | static struct mlx5_flow_root_namespace |
2236 | *create_root_ns(struct mlx5_flow_steering *steering, | |
2237 | enum fs_flow_table_type table_type) | |
25302363 | 2238 | { |
af76c501 | 2239 | const struct mlx5_flow_cmds *cmds = mlx5_fs_cmd_get_default(table_type); |
25302363 MG |
2240 | struct mlx5_flow_root_namespace *root_ns; |
2241 | struct mlx5_flow_namespace *ns; | |
2242 | ||
05564d0a AY |
2243 | if (mlx5_accel_ipsec_device_caps(steering->dev) & MLX5_ACCEL_IPSEC_CAP_DEVICE && |
2244 | (table_type == FS_FT_NIC_RX || table_type == FS_FT_NIC_TX)) | |
2245 | cmds = mlx5_fs_cmd_get_default_ipsec_fpga_cmds(table_type); | |
2246 | ||
86d722ad | 2247 | /* Create the root namespace */ |
1b9a07ee | 2248 | root_ns = kvzalloc(sizeof(*root_ns), GFP_KERNEL); |
25302363 MG |
2249 | if (!root_ns) |
2250 | return NULL; | |
2251 | ||
fba53f7b | 2252 | root_ns->dev = steering->dev; |
25302363 | 2253 | root_ns->table_type = table_type; |
af76c501 | 2254 | root_ns->cmds = cmds; |
25302363 | 2255 | |
dae37456 AV |
2256 | INIT_LIST_HEAD(&root_ns->underlay_qpns); |
2257 | ||
25302363 MG |
2258 | ns = &root_ns->ns; |
2259 | fs_init_namespace(ns); | |
2cc43b49 | 2260 | mutex_init(&root_ns->chain_lock); |
bd71b08e | 2261 | tree_init_node(&ns->node, NULL, NULL); |
25302363 MG |
2262 | tree_add_node(&ns->node, NULL); |
2263 | ||
2264 | return root_ns; | |
2265 | } | |
2266 | ||
655227ed MG |
2267 | static void set_prio_attrs_in_prio(struct fs_prio *prio, int acc_level); |
2268 | ||
2269 | static int set_prio_attrs_in_ns(struct mlx5_flow_namespace *ns, int acc_level) | |
2270 | { | |
2271 | struct fs_prio *prio; | |
2272 | ||
2273 | fs_for_each_prio(prio, ns) { | |
a257b94a | 2274 | /* This updates prio start_level and num_levels */ |
655227ed | 2275 | set_prio_attrs_in_prio(prio, acc_level); |
a257b94a | 2276 | acc_level += prio->num_levels; |
655227ed MG |
2277 | } |
2278 | return acc_level; | |
2279 | } | |
2280 | ||
2281 | static void set_prio_attrs_in_prio(struct fs_prio *prio, int acc_level) | |
2282 | { | |
2283 | struct mlx5_flow_namespace *ns; | |
2284 | int acc_level_ns = acc_level; | |
2285 | ||
2286 | prio->start_level = acc_level; | |
2287 | fs_for_each_ns(ns, prio) | |
a257b94a | 2288 | /* This updates start_level and num_levels of ns's priority descendants */ |
655227ed | 2289 | acc_level_ns = set_prio_attrs_in_ns(ns, acc_level); |
a257b94a MG |
2290 | if (!prio->num_levels) |
2291 | prio->num_levels = acc_level_ns - prio->start_level; | |
2292 | WARN_ON(prio->num_levels < acc_level_ns - prio->start_level); | |
655227ed MG |
2293 | } |
2294 | ||
2295 | static void set_prio_attrs(struct mlx5_flow_root_namespace *root_ns) | |
2296 | { | |
2297 | struct mlx5_flow_namespace *ns = &root_ns->ns; | |
2298 | struct fs_prio *prio; | |
2299 | int start_level = 0; | |
2300 | ||
2301 | fs_for_each_prio(prio, ns) { | |
2302 | set_prio_attrs_in_prio(prio, start_level); | |
a257b94a | 2303 | start_level += prio->num_levels; |
655227ed MG |
2304 | } |
2305 | } | |
2306 | ||
153fefbf MG |
2307 | #define ANCHOR_PRIO 0 |
2308 | #define ANCHOR_SIZE 1 | |
d63cd286 | 2309 | #define ANCHOR_LEVEL 0 |
fba53f7b | 2310 | static int create_anchor_flow_table(struct mlx5_flow_steering *steering) |
153fefbf MG |
2311 | { |
2312 | struct mlx5_flow_namespace *ns = NULL; | |
b3ba5149 | 2313 | struct mlx5_flow_table_attr ft_attr = {}; |
153fefbf MG |
2314 | struct mlx5_flow_table *ft; |
2315 | ||
fba53f7b | 2316 | ns = mlx5_get_flow_namespace(steering->dev, MLX5_FLOW_NAMESPACE_ANCHOR); |
eff596da | 2317 | if (WARN_ON(!ns)) |
153fefbf | 2318 | return -EINVAL; |
b3ba5149 ES |
2319 | |
2320 | ft_attr.max_fte = ANCHOR_SIZE; | |
2321 | ft_attr.level = ANCHOR_LEVEL; | |
2322 | ft_attr.prio = ANCHOR_PRIO; | |
2323 | ||
2324 | ft = mlx5_create_flow_table(ns, &ft_attr); | |
153fefbf | 2325 | if (IS_ERR(ft)) { |
fba53f7b | 2326 | mlx5_core_err(steering->dev, "Failed to create last anchor flow table"); |
153fefbf MG |
2327 | return PTR_ERR(ft); |
2328 | } | |
2329 | return 0; | |
2330 | } | |
2331 | ||
fba53f7b | 2332 | static int init_root_ns(struct mlx5_flow_steering *steering) |
25302363 | 2333 | { |
9c26f5f8 TB |
2334 | int err; |
2335 | ||
fba53f7b | 2336 | steering->root_ns = create_root_ns(steering, FS_FT_NIC_RX); |
42fb18fd | 2337 | if (!steering->root_ns) |
9c26f5f8 | 2338 | return -ENOMEM; |
25302363 | 2339 | |
9c26f5f8 TB |
2340 | err = init_root_tree(steering, &root_fs, &steering->root_ns->ns.node); |
2341 | if (err) | |
2342 | goto out_err; | |
25302363 | 2343 | |
fba53f7b | 2344 | set_prio_attrs(steering->root_ns); |
9c26f5f8 TB |
2345 | err = create_anchor_flow_table(steering); |
2346 | if (err) | |
2347 | goto out_err; | |
153fefbf | 2348 | |
25302363 MG |
2349 | return 0; |
2350 | ||
9c26f5f8 TB |
2351 | out_err: |
2352 | cleanup_root_ns(steering->root_ns); | |
2353 | steering->root_ns = NULL; | |
2354 | return err; | |
25302363 MG |
2355 | } |
2356 | ||
0da2d666 | 2357 | static void clean_tree(struct fs_node *node) |
25302363 | 2358 | { |
0da2d666 MG |
2359 | if (node) { |
2360 | struct fs_node *iter; | |
2361 | struct fs_node *temp; | |
25302363 | 2362 | |
800350a3 | 2363 | tree_get_node(node); |
0da2d666 MG |
2364 | list_for_each_entry_safe(iter, temp, &node->children, list) |
2365 | clean_tree(iter); | |
800350a3 | 2366 | tree_put_node(node); |
0da2d666 | 2367 | tree_remove_node(node); |
25302363 | 2368 | } |
153fefbf MG |
2369 | } |
2370 | ||
0da2d666 | 2371 | static void cleanup_root_ns(struct mlx5_flow_root_namespace *root_ns) |
25302363 | 2372 | { |
25302363 MG |
2373 | if (!root_ns) |
2374 | return; | |
2375 | ||
0da2d666 | 2376 | clean_tree(&root_ns->ns.node); |
25302363 MG |
2377 | } |
2378 | ||
9b93ab98 GP |
2379 | static void cleanup_egress_acls_root_ns(struct mlx5_core_dev *dev) |
2380 | { | |
2381 | struct mlx5_flow_steering *steering = dev->priv.steering; | |
2382 | int i; | |
2383 | ||
2384 | if (!steering->esw_egress_root_ns) | |
2385 | return; | |
2386 | ||
2387 | for (i = 0; i < MLX5_TOTAL_VPORTS(dev); i++) | |
2388 | cleanup_root_ns(steering->esw_egress_root_ns[i]); | |
2389 | ||
2390 | kfree(steering->esw_egress_root_ns); | |
2391 | } | |
2392 | ||
2393 | static void cleanup_ingress_acls_root_ns(struct mlx5_core_dev *dev) | |
2394 | { | |
2395 | struct mlx5_flow_steering *steering = dev->priv.steering; | |
2396 | int i; | |
2397 | ||
2398 | if (!steering->esw_ingress_root_ns) | |
2399 | return; | |
2400 | ||
2401 | for (i = 0; i < MLX5_TOTAL_VPORTS(dev); i++) | |
2402 | cleanup_root_ns(steering->esw_ingress_root_ns[i]); | |
2403 | ||
2404 | kfree(steering->esw_ingress_root_ns); | |
2405 | } | |
2406 | ||
25302363 MG |
2407 | void mlx5_cleanup_fs(struct mlx5_core_dev *dev) |
2408 | { | |
fba53f7b MG |
2409 | struct mlx5_flow_steering *steering = dev->priv.steering; |
2410 | ||
0da2d666 | 2411 | cleanup_root_ns(steering->root_ns); |
9b93ab98 GP |
2412 | cleanup_egress_acls_root_ns(dev); |
2413 | cleanup_ingress_acls_root_ns(dev); | |
0da2d666 | 2414 | cleanup_root_ns(steering->fdb_root_ns); |
328edb49 PB |
2415 | steering->fdb_root_ns = NULL; |
2416 | kfree(steering->fdb_sub_ns); | |
2417 | steering->fdb_sub_ns = NULL; | |
87d22483 MG |
2418 | cleanup_root_ns(steering->sniffer_rx_root_ns); |
2419 | cleanup_root_ns(steering->sniffer_tx_root_ns); | |
5f418378 | 2420 | cleanup_root_ns(steering->egress_root_ns); |
43a335e0 | 2421 | mlx5_cleanup_fc_stats(dev); |
a369d4ac MG |
2422 | kmem_cache_destroy(steering->ftes_cache); |
2423 | kmem_cache_destroy(steering->fgs_cache); | |
fba53f7b | 2424 | kfree(steering); |
25302363 MG |
2425 | } |
2426 | ||
87d22483 MG |
2427 | static int init_sniffer_tx_root_ns(struct mlx5_flow_steering *steering) |
2428 | { | |
2429 | struct fs_prio *prio; | |
2430 | ||
2431 | steering->sniffer_tx_root_ns = create_root_ns(steering, FS_FT_SNIFFER_TX); | |
2432 | if (!steering->sniffer_tx_root_ns) | |
2433 | return -ENOMEM; | |
2434 | ||
2435 | /* Create single prio */ | |
2436 | prio = fs_create_prio(&steering->sniffer_tx_root_ns->ns, 0, 1); | |
2437 | if (IS_ERR(prio)) { | |
2438 | cleanup_root_ns(steering->sniffer_tx_root_ns); | |
2439 | return PTR_ERR(prio); | |
2440 | } | |
2441 | return 0; | |
2442 | } | |
2443 | ||
2444 | static int init_sniffer_rx_root_ns(struct mlx5_flow_steering *steering) | |
2445 | { | |
2446 | struct fs_prio *prio; | |
2447 | ||
2448 | steering->sniffer_rx_root_ns = create_root_ns(steering, FS_FT_SNIFFER_RX); | |
2449 | if (!steering->sniffer_rx_root_ns) | |
2450 | return -ENOMEM; | |
2451 | ||
2452 | /* Create single prio */ | |
2453 | prio = fs_create_prio(&steering->sniffer_rx_root_ns->ns, 0, 1); | |
2454 | if (IS_ERR(prio)) { | |
2455 | cleanup_root_ns(steering->sniffer_rx_root_ns); | |
2456 | return PTR_ERR(prio); | |
2457 | } | |
2458 | return 0; | |
2459 | } | |
2460 | ||
fba53f7b | 2461 | static int init_fdb_root_ns(struct mlx5_flow_steering *steering) |
25302363 | 2462 | { |
328edb49 PB |
2463 | struct mlx5_flow_namespace *ns; |
2464 | struct fs_prio *maj_prio; | |
2465 | struct fs_prio *min_prio; | |
2466 | int levels; | |
2467 | int chain; | |
2468 | int prio; | |
2469 | int err; | |
25302363 | 2470 | |
fba53f7b MG |
2471 | steering->fdb_root_ns = create_root_ns(steering, FS_FT_FDB); |
2472 | if (!steering->fdb_root_ns) | |
25302363 MG |
2473 | return -ENOMEM; |
2474 | ||
328edb49 | 2475 | steering->fdb_sub_ns = kzalloc(sizeof(steering->fdb_sub_ns) * |
cc3a4cd3 | 2476 | (FDB_MAX_CHAIN + 1), GFP_KERNEL); |
328edb49 PB |
2477 | if (!steering->fdb_sub_ns) |
2478 | return -ENOMEM; | |
2479 | ||
2480 | levels = 2 * FDB_MAX_PRIO * (FDB_MAX_CHAIN + 1); | |
2481 | maj_prio = fs_create_prio_chained(&steering->fdb_root_ns->ns, 0, | |
2482 | levels); | |
2483 | if (IS_ERR(maj_prio)) { | |
2484 | err = PTR_ERR(maj_prio); | |
1033665e | 2485 | goto out_err; |
328edb49 | 2486 | } |
1033665e | 2487 | |
328edb49 PB |
2488 | for (chain = 0; chain <= FDB_MAX_CHAIN; chain++) { |
2489 | ns = fs_create_namespace(maj_prio); | |
2490 | if (IS_ERR(ns)) { | |
2491 | err = PTR_ERR(ns); | |
2492 | goto out_err; | |
2493 | } | |
2494 | ||
2495 | for (prio = 0; prio < FDB_MAX_PRIO * (chain + 1); prio++) { | |
2496 | min_prio = fs_create_prio(ns, prio, 2); | |
2497 | if (IS_ERR(min_prio)) { | |
2498 | err = PTR_ERR(min_prio); | |
2499 | goto out_err; | |
2500 | } | |
2501 | } | |
2502 | ||
2503 | steering->fdb_sub_ns[chain] = ns; | |
2504 | } | |
2505 | ||
2506 | maj_prio = fs_create_prio(&steering->fdb_root_ns->ns, 1, 1); | |
2507 | if (IS_ERR(maj_prio)) { | |
2508 | err = PTR_ERR(maj_prio); | |
1033665e | 2509 | goto out_err; |
328edb49 | 2510 | } |
1033665e OG |
2511 | |
2512 | set_prio_attrs(steering->fdb_root_ns); | |
2513 | return 0; | |
2514 | ||
2515 | out_err: | |
2516 | cleanup_root_ns(steering->fdb_root_ns); | |
328edb49 PB |
2517 | kfree(steering->fdb_sub_ns); |
2518 | steering->fdb_sub_ns = NULL; | |
1033665e | 2519 | steering->fdb_root_ns = NULL; |
328edb49 | 2520 | return err; |
25302363 MG |
2521 | } |
2522 | ||
9b93ab98 | 2523 | static int init_egress_acl_root_ns(struct mlx5_flow_steering *steering, int vport) |
efdc810b MHY |
2524 | { |
2525 | struct fs_prio *prio; | |
2526 | ||
9b93ab98 GP |
2527 | steering->esw_egress_root_ns[vport] = create_root_ns(steering, FS_FT_ESW_EGRESS_ACL); |
2528 | if (!steering->esw_egress_root_ns[vport]) | |
efdc810b MHY |
2529 | return -ENOMEM; |
2530 | ||
2531 | /* create 1 prio*/ | |
9b93ab98 | 2532 | prio = fs_create_prio(&steering->esw_egress_root_ns[vport]->ns, 0, 1); |
44fafdaa | 2533 | return PTR_ERR_OR_ZERO(prio); |
efdc810b MHY |
2534 | } |
2535 | ||
9b93ab98 | 2536 | static int init_ingress_acl_root_ns(struct mlx5_flow_steering *steering, int vport) |
efdc810b MHY |
2537 | { |
2538 | struct fs_prio *prio; | |
2539 | ||
9b93ab98 GP |
2540 | steering->esw_ingress_root_ns[vport] = create_root_ns(steering, FS_FT_ESW_INGRESS_ACL); |
2541 | if (!steering->esw_ingress_root_ns[vport]) | |
efdc810b MHY |
2542 | return -ENOMEM; |
2543 | ||
2544 | /* create 1 prio*/ | |
9b93ab98 | 2545 | prio = fs_create_prio(&steering->esw_ingress_root_ns[vport]->ns, 0, 1); |
44fafdaa | 2546 | return PTR_ERR_OR_ZERO(prio); |
efdc810b MHY |
2547 | } |
2548 | ||
9b93ab98 GP |
2549 | static int init_egress_acls_root_ns(struct mlx5_core_dev *dev) |
2550 | { | |
2551 | struct mlx5_flow_steering *steering = dev->priv.steering; | |
2552 | int err; | |
2553 | int i; | |
2554 | ||
2555 | steering->esw_egress_root_ns = kcalloc(MLX5_TOTAL_VPORTS(dev), | |
2556 | sizeof(*steering->esw_egress_root_ns), | |
2557 | GFP_KERNEL); | |
2558 | if (!steering->esw_egress_root_ns) | |
2559 | return -ENOMEM; | |
2560 | ||
2561 | for (i = 0; i < MLX5_TOTAL_VPORTS(dev); i++) { | |
2562 | err = init_egress_acl_root_ns(steering, i); | |
2563 | if (err) | |
2564 | goto cleanup_root_ns; | |
2565 | } | |
2566 | ||
2567 | return 0; | |
2568 | ||
2569 | cleanup_root_ns: | |
2570 | for (i--; i >= 0; i--) | |
2571 | cleanup_root_ns(steering->esw_egress_root_ns[i]); | |
2572 | kfree(steering->esw_egress_root_ns); | |
2573 | return err; | |
2574 | } | |
2575 | ||
2576 | static int init_ingress_acls_root_ns(struct mlx5_core_dev *dev) | |
2577 | { | |
2578 | struct mlx5_flow_steering *steering = dev->priv.steering; | |
2579 | int err; | |
2580 | int i; | |
2581 | ||
2582 | steering->esw_ingress_root_ns = kcalloc(MLX5_TOTAL_VPORTS(dev), | |
2583 | sizeof(*steering->esw_ingress_root_ns), | |
2584 | GFP_KERNEL); | |
2585 | if (!steering->esw_ingress_root_ns) | |
2586 | return -ENOMEM; | |
2587 | ||
2588 | for (i = 0; i < MLX5_TOTAL_VPORTS(dev); i++) { | |
2589 | err = init_ingress_acl_root_ns(steering, i); | |
2590 | if (err) | |
2591 | goto cleanup_root_ns; | |
2592 | } | |
2593 | ||
2594 | return 0; | |
2595 | ||
2596 | cleanup_root_ns: | |
2597 | for (i--; i >= 0; i--) | |
2598 | cleanup_root_ns(steering->esw_ingress_root_ns[i]); | |
2599 | kfree(steering->esw_ingress_root_ns); | |
2600 | return err; | |
2601 | } | |
2602 | ||
5f418378 AY |
2603 | static int init_egress_root_ns(struct mlx5_flow_steering *steering) |
2604 | { | |
8ce78257 | 2605 | int err; |
5f418378 AY |
2606 | |
2607 | steering->egress_root_ns = create_root_ns(steering, | |
2608 | FS_FT_NIC_TX); | |
2609 | if (!steering->egress_root_ns) | |
2610 | return -ENOMEM; | |
2611 | ||
8ce78257 MB |
2612 | err = init_root_tree(steering, &egress_root_fs, |
2613 | &steering->egress_root_ns->ns.node); | |
2614 | if (err) | |
2615 | goto cleanup; | |
2616 | set_prio_attrs(steering->egress_root_ns); | |
2617 | return 0; | |
2618 | cleanup: | |
2619 | cleanup_root_ns(steering->egress_root_ns); | |
2620 | steering->egress_root_ns = NULL; | |
2621 | return err; | |
5f418378 AY |
2622 | } |
2623 | ||
25302363 MG |
2624 | int mlx5_init_fs(struct mlx5_core_dev *dev) |
2625 | { | |
fba53f7b | 2626 | struct mlx5_flow_steering *steering; |
25302363 MG |
2627 | int err = 0; |
2628 | ||
43a335e0 AV |
2629 | err = mlx5_init_fc_stats(dev); |
2630 | if (err) | |
2631 | return err; | |
2632 | ||
fba53f7b MG |
2633 | steering = kzalloc(sizeof(*steering), GFP_KERNEL); |
2634 | if (!steering) | |
2635 | return -ENOMEM; | |
2636 | steering->dev = dev; | |
2637 | dev->priv.steering = steering; | |
2638 | ||
a369d4ac MG |
2639 | steering->fgs_cache = kmem_cache_create("mlx5_fs_fgs", |
2640 | sizeof(struct mlx5_flow_group), 0, | |
2641 | 0, NULL); | |
2642 | steering->ftes_cache = kmem_cache_create("mlx5_fs_ftes", sizeof(struct fs_fte), 0, | |
2643 | 0, NULL); | |
2644 | if (!steering->ftes_cache || !steering->fgs_cache) { | |
2645 | err = -ENOMEM; | |
2646 | goto err; | |
2647 | } | |
2648 | ||
ffdb8827 ES |
2649 | if ((((MLX5_CAP_GEN(dev, port_type) == MLX5_CAP_PORT_TYPE_ETH) && |
2650 | (MLX5_CAP_GEN(dev, nic_flow_table))) || | |
2651 | ((MLX5_CAP_GEN(dev, port_type) == MLX5_CAP_PORT_TYPE_IB) && | |
2652 | MLX5_CAP_GEN(dev, ipoib_enhanced_offloads))) && | |
876d634d | 2653 | MLX5_CAP_FLOWTABLE_NIC_RX(dev, ft_support)) { |
fba53f7b | 2654 | err = init_root_ns(steering); |
25302363 | 2655 | if (err) |
43a335e0 | 2656 | goto err; |
25302363 | 2657 | } |
876d634d | 2658 | |
0efc8562 | 2659 | if (MLX5_ESWITCH_MANAGER(dev)) { |
bd02ef8e | 2660 | if (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, ft_support)) { |
fba53f7b | 2661 | err = init_fdb_root_ns(steering); |
bd02ef8e MG |
2662 | if (err) |
2663 | goto err; | |
2664 | } | |
2665 | if (MLX5_CAP_ESW_EGRESS_ACL(dev, ft_support)) { | |
9b93ab98 | 2666 | err = init_egress_acls_root_ns(dev); |
bd02ef8e MG |
2667 | if (err) |
2668 | goto err; | |
2669 | } | |
2670 | if (MLX5_CAP_ESW_INGRESS_ACL(dev, ft_support)) { | |
9b93ab98 | 2671 | err = init_ingress_acls_root_ns(dev); |
bd02ef8e MG |
2672 | if (err) |
2673 | goto err; | |
2674 | } | |
25302363 MG |
2675 | } |
2676 | ||
87d22483 MG |
2677 | if (MLX5_CAP_FLOWTABLE_SNIFFER_RX(dev, ft_support)) { |
2678 | err = init_sniffer_rx_root_ns(steering); | |
2679 | if (err) | |
2680 | goto err; | |
2681 | } | |
2682 | ||
2683 | if (MLX5_CAP_FLOWTABLE_SNIFFER_TX(dev, ft_support)) { | |
2684 | err = init_sniffer_tx_root_ns(steering); | |
2685 | if (err) | |
2686 | goto err; | |
2687 | } | |
2688 | ||
8ce78257 | 2689 | if (MLX5_IPSEC_DEV(dev) || MLX5_CAP_FLOWTABLE_NIC_TX(dev, ft_support)) { |
5f418378 AY |
2690 | err = init_egress_root_ns(steering); |
2691 | if (err) | |
2692 | goto err; | |
2693 | } | |
2694 | ||
efdc810b MHY |
2695 | return 0; |
2696 | err: | |
2697 | mlx5_cleanup_fs(dev); | |
25302363 MG |
2698 | return err; |
2699 | } | |
50854114 YH |
2700 | |
2701 | int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn) | |
2702 | { | |
2703 | struct mlx5_flow_root_namespace *root = dev->priv.steering->root_ns; | |
dae37456 AV |
2704 | struct mlx5_ft_underlay_qp *new_uqp; |
2705 | int err = 0; | |
2706 | ||
2707 | new_uqp = kzalloc(sizeof(*new_uqp), GFP_KERNEL); | |
2708 | if (!new_uqp) | |
2709 | return -ENOMEM; | |
2710 | ||
2711 | mutex_lock(&root->chain_lock); | |
2712 | ||
2713 | if (!root->root_ft) { | |
2714 | err = -EINVAL; | |
2715 | goto update_ft_fail; | |
2716 | } | |
2717 | ||
af76c501 MB |
2718 | err = root->cmds->update_root_ft(dev, root->root_ft, underlay_qpn, |
2719 | false); | |
dae37456 AV |
2720 | if (err) { |
2721 | mlx5_core_warn(dev, "Failed adding underlay QPN (%u) to root FT err(%d)\n", | |
2722 | underlay_qpn, err); | |
2723 | goto update_ft_fail; | |
2724 | } | |
2725 | ||
2726 | new_uqp->qpn = underlay_qpn; | |
2727 | list_add_tail(&new_uqp->list, &root->underlay_qpns); | |
2728 | ||
2729 | mutex_unlock(&root->chain_lock); | |
50854114 | 2730 | |
50854114 | 2731 | return 0; |
dae37456 AV |
2732 | |
2733 | update_ft_fail: | |
2734 | mutex_unlock(&root->chain_lock); | |
2735 | kfree(new_uqp); | |
2736 | return err; | |
50854114 YH |
2737 | } |
2738 | EXPORT_SYMBOL(mlx5_fs_add_rx_underlay_qpn); | |
2739 | ||
2740 | int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn) | |
2741 | { | |
2742 | struct mlx5_flow_root_namespace *root = dev->priv.steering->root_ns; | |
dae37456 AV |
2743 | struct mlx5_ft_underlay_qp *uqp; |
2744 | bool found = false; | |
2745 | int err = 0; | |
2746 | ||
2747 | mutex_lock(&root->chain_lock); | |
2748 | list_for_each_entry(uqp, &root->underlay_qpns, list) { | |
2749 | if (uqp->qpn == underlay_qpn) { | |
2750 | found = true; | |
2751 | break; | |
2752 | } | |
2753 | } | |
2754 | ||
2755 | if (!found) { | |
2756 | mlx5_core_warn(dev, "Failed finding underlay qp (%u) in qpn list\n", | |
2757 | underlay_qpn); | |
2758 | err = -EINVAL; | |
2759 | goto out; | |
2760 | } | |
2761 | ||
af76c501 MB |
2762 | err = root->cmds->update_root_ft(dev, root->root_ft, underlay_qpn, |
2763 | true); | |
dae37456 AV |
2764 | if (err) |
2765 | mlx5_core_warn(dev, "Failed removing underlay QPN (%u) from root FT err(%d)\n", | |
2766 | underlay_qpn, err); | |
2767 | ||
2768 | list_del(&uqp->list); | |
2769 | mutex_unlock(&root->chain_lock); | |
2770 | kfree(uqp); | |
50854114 | 2771 | |
50854114 | 2772 | return 0; |
dae37456 AV |
2773 | |
2774 | out: | |
2775 | mutex_unlock(&root->chain_lock); | |
2776 | return err; | |
50854114 YH |
2777 | } |
2778 | EXPORT_SYMBOL(mlx5_fs_remove_rx_underlay_qpn); |