1 | // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 |
2 | /* Copyright (c) 2017-2018 Mellanox Technologies. All rights reserved */ |
3 | |
4 | #include <linux/kernel.h> |
5 | #include <linux/slab.h> |
6 | #include <linux/errno.h> |
7 | #include <linux/list.h> |
8 | #include <linux/string.h> |
9 | #include <linux/rhashtable.h> |
10 | #include <linux/netdevice.h> |
11 | #include <linux/mutex.h> |
12 | #include <net/net_namespace.h> |
13 | #include <net/tc_act/tc_vlan.h> |
14 | |
15 | #include "reg.h" |
16 | #include "core.h" |
17 | #include "resources.h" |
18 | #include "spectrum.h" |
19 | #include "core_acl_flex_keys.h" |
20 | #include "core_acl_flex_actions.h" |
21 | #include "spectrum_acl_tcam.h" |
22 | |
23 | struct mlxsw_sp_acl { |
24 | struct mlxsw_sp *mlxsw_sp; |
25 | struct mlxsw_afk *afk; |
26 | struct mlxsw_sp_fid *dummy_fid; |
27 | struct rhashtable ruleset_ht; |
28 | struct list_head rules; |
29 | struct mutex rules_lock; /* Protects rules list */ |
30 | struct { |
31 | struct delayed_work dw; |
32 | unsigned long interval; /* ms */ |
33 | #define MLXSW_SP_ACL_RULE_ACTIVITY_UPDATE_PERIOD_MS 1000 |
34 | } rule_activity_update; |
35 | struct mlxsw_sp_acl_tcam tcam; |
36 | }; |
37 | |
38 | struct mlxsw_afk *mlxsw_sp_acl_afk(struct mlxsw_sp_acl *acl) |
39 | { |
40 | return acl->afk; |
41 | } |
42 | |
43 | struct mlxsw_sp_acl_tcam *mlxsw_sp_acl_to_tcam(struct mlxsw_sp_acl *acl) |
44 | { |
45 | return &acl->tcam; |
46 | } |
47 | |
48 | struct mlxsw_sp_acl_ruleset_ht_key { |
49 | struct mlxsw_sp_flow_block *block; |
50 | u32 chain_index; |
51 | const struct mlxsw_sp_acl_profile_ops *ops; |
52 | }; |
53 | |
54 | struct mlxsw_sp_acl_ruleset { |
55 | struct rhash_head ht_node; /* Member of acl HT */ |
56 | struct mlxsw_sp_acl_ruleset_ht_key ht_key; |
57 | struct rhashtable rule_ht; |
58 | unsigned int ref_count; |
59 | unsigned int min_prio; |
60 | unsigned int max_prio; |
61 | unsigned long priv[]; |
62 | /* priv has to be always the last item */ |
63 | }; |
64 | |
65 | struct mlxsw_sp_acl_rule { |
66 | struct rhash_head ht_node; /* Member of rule HT */ |
67 | struct list_head list; |
68 | unsigned long cookie; /* HT key */ |
69 | struct mlxsw_sp_acl_ruleset *ruleset; |
70 | struct mlxsw_sp_acl_rule_info *rulei; |
71 | u64 last_used; |
72 | u64 last_packets; |
73 | u64 last_bytes; |
74 | u64 last_drops; |
75 | unsigned long priv[]; |
76 | /* priv has to be always the last item */ |
77 | }; |
78 | |
79 | static const struct rhashtable_params mlxsw_sp_acl_ruleset_ht_params = { |
80 | .key_len = sizeof(struct mlxsw_sp_acl_ruleset_ht_key), |
81 | .key_offset = offsetof(struct mlxsw_sp_acl_ruleset, ht_key), |
82 | .head_offset = offsetof(struct mlxsw_sp_acl_ruleset, ht_node), |
83 | .automatic_shrinking = true, |
84 | }; |
85 | |
86 | static const struct rhashtable_params mlxsw_sp_acl_rule_ht_params = { |
87 | .key_len = sizeof(unsigned long), |
88 | .key_offset = offsetof(struct mlxsw_sp_acl_rule, cookie), |
89 | .head_offset = offsetof(struct mlxsw_sp_acl_rule, ht_node), |
90 | .automatic_shrinking = true, |
91 | }; |
92 | |
93 | struct mlxsw_sp_fid *mlxsw_sp_acl_dummy_fid(struct mlxsw_sp *mlxsw_sp) |
94 | { |
95 | return mlxsw_sp->acl->dummy_fid; |
96 | } |
97 | |
98 | static bool |
99 | mlxsw_sp_acl_ruleset_is_singular(const struct mlxsw_sp_acl_ruleset *ruleset) |
100 | { |
101 | /* We hold a reference on ruleset ourselves */ |
102 | return ruleset->ref_count == 2; |
103 | } |
104 | |
105 | int mlxsw_sp_acl_ruleset_bind(struct mlxsw_sp *mlxsw_sp, |
106 | struct mlxsw_sp_flow_block *block, |
107 | struct mlxsw_sp_flow_block_binding *binding) |
108 | { |
109 | struct mlxsw_sp_acl_ruleset *ruleset = block->ruleset_zero; |
110 | const struct mlxsw_sp_acl_profile_ops *ops = ruleset->ht_key.ops; |
111 | |
112 | return ops->ruleset_bind(mlxsw_sp, ruleset->priv, |
113 | binding->mlxsw_sp_port, binding->ingress); |
114 | } |
115 | |
116 | void mlxsw_sp_acl_ruleset_unbind(struct mlxsw_sp *mlxsw_sp, |
117 | struct mlxsw_sp_flow_block *block, |
118 | struct mlxsw_sp_flow_block_binding *binding) |
119 | { |
120 | struct mlxsw_sp_acl_ruleset *ruleset = block->ruleset_zero; |
121 | const struct mlxsw_sp_acl_profile_ops *ops = ruleset->ht_key.ops; |
122 | |
123 | ops->ruleset_unbind(mlxsw_sp, ruleset->priv, |
124 | binding->mlxsw_sp_port, binding->ingress); |
125 | } |
126 | |
127 | static int |
128 | mlxsw_sp_acl_ruleset_block_bind(struct mlxsw_sp *mlxsw_sp, |
129 | struct mlxsw_sp_acl_ruleset *ruleset, |
130 | struct mlxsw_sp_flow_block *block) |
131 | { |
132 | struct mlxsw_sp_flow_block_binding *binding; |
133 | int err; |
134 | |
135 | block->ruleset_zero = ruleset; |
136 | list_for_each_entry(binding, &block->binding_list, list) { |
137 | err = mlxsw_sp_acl_ruleset_bind(mlxsw_sp, block, binding); |
138 | if (err) |
139 | goto rollback; |
140 | } |
141 | return 0; |
142 | |
143 | rollback: |
144 | list_for_each_entry_continue_reverse(binding, &block->binding_list, |
145 | list) |
146 | mlxsw_sp_acl_ruleset_unbind(mlxsw_sp, block, binding); |
147 | block->ruleset_zero = NULL; |
148 | |
149 | return err; |
150 | } |
151 | |
152 | static void |
153 | mlxsw_sp_acl_ruleset_block_unbind(struct mlxsw_sp *mlxsw_sp, |
154 | struct mlxsw_sp_acl_ruleset *ruleset, |
155 | struct mlxsw_sp_flow_block *block) |
156 | { |
157 | struct mlxsw_sp_flow_block_binding *binding; |
158 | |
159 | list_for_each_entry(binding, &block->binding_list, list) |
160 | mlxsw_sp_acl_ruleset_unbind(mlxsw_sp, block, binding); |
161 | block->ruleset_zero = NULL; |
162 | } |
163 | |
164 | static struct mlxsw_sp_acl_ruleset * |
165 | mlxsw_sp_acl_ruleset_create(struct mlxsw_sp *mlxsw_sp, |
166 | struct mlxsw_sp_flow_block *block, u32 chain_index, |
167 | const struct mlxsw_sp_acl_profile_ops *ops, |
168 | struct mlxsw_afk_element_usage *tmplt_elusage) |
169 | { |
170 | struct mlxsw_sp_acl *acl = mlxsw_sp->acl; |
171 | struct mlxsw_sp_acl_ruleset *ruleset; |
172 | size_t alloc_size; |
173 | int err; |
174 | |
175 | alloc_size = sizeof(*ruleset) + ops->ruleset_priv_size; |
176 | ruleset = kzalloc(size: alloc_size, GFP_KERNEL); |
177 | if (!ruleset) |
178 | return ERR_PTR(error: -ENOMEM); |
179 | ruleset->ref_count = 1; |
180 | ruleset->ht_key.block = block; |
181 | ruleset->ht_key.chain_index = chain_index; |
182 | ruleset->ht_key.ops = ops; |
183 | |
184 | err = rhashtable_init(ht: &ruleset->rule_ht, params: &mlxsw_sp_acl_rule_ht_params); |
185 | if (err) |
186 | goto err_rhashtable_init; |
187 | |
188 | err = ops->ruleset_add(mlxsw_sp, &acl->tcam, ruleset->priv, |
189 | tmplt_elusage, &ruleset->min_prio, |
190 | &ruleset->max_prio); |
191 | if (err) |
192 | goto err_ops_ruleset_add; |
193 | |
194 | err = rhashtable_insert_fast(ht: &acl->ruleset_ht, obj: &ruleset->ht_node, |
195 | params: mlxsw_sp_acl_ruleset_ht_params); |
196 | if (err) |
197 | goto err_ht_insert; |
198 | |
199 | return ruleset; |
200 | |
201 | err_ht_insert: |
202 | ops->ruleset_del(mlxsw_sp, ruleset->priv); |
203 | err_ops_ruleset_add: |
204 | rhashtable_destroy(ht: &ruleset->rule_ht); |
205 | err_rhashtable_init: |
206 | kfree(objp: ruleset); |
207 | return ERR_PTR(error: err); |
208 | } |
209 | |
210 | static void mlxsw_sp_acl_ruleset_destroy(struct mlxsw_sp *mlxsw_sp, |
211 | struct mlxsw_sp_acl_ruleset *ruleset) |
212 | { |
213 | const struct mlxsw_sp_acl_profile_ops *ops = ruleset->ht_key.ops; |
214 | struct mlxsw_sp_acl *acl = mlxsw_sp->acl; |
215 | |
216 | rhashtable_remove_fast(ht: &acl->ruleset_ht, obj: &ruleset->ht_node, |
217 | params: mlxsw_sp_acl_ruleset_ht_params); |
218 | ops->ruleset_del(mlxsw_sp, ruleset->priv); |
219 | rhashtable_destroy(ht: &ruleset->rule_ht); |
220 | kfree(objp: ruleset); |
221 | } |
222 | |
223 | static void mlxsw_sp_acl_ruleset_ref_inc(struct mlxsw_sp_acl_ruleset *ruleset) |
224 | { |
225 | ruleset->ref_count++; |
226 | } |
227 | |
228 | static void mlxsw_sp_acl_ruleset_ref_dec(struct mlxsw_sp *mlxsw_sp, |
229 | struct mlxsw_sp_acl_ruleset *ruleset) |
230 | { |
231 | if (--ruleset->ref_count) |
232 | return; |
233 | mlxsw_sp_acl_ruleset_destroy(mlxsw_sp, ruleset); |
234 | } |
235 | |
236 | static struct mlxsw_sp_acl_ruleset * |
237 | __mlxsw_sp_acl_ruleset_lookup(struct mlxsw_sp_acl *acl, |
238 | struct mlxsw_sp_flow_block *block, u32 chain_index, |
239 | const struct mlxsw_sp_acl_profile_ops *ops) |
240 | { |
241 | struct mlxsw_sp_acl_ruleset_ht_key ht_key; |
242 | |
243 | memset(&ht_key, 0, sizeof(ht_key)); |
244 | ht_key.block = block; |
245 | ht_key.chain_index = chain_index; |
246 | ht_key.ops = ops; |
247 | return rhashtable_lookup_fast(ht: &acl->ruleset_ht, key: &ht_key, |
248 | params: mlxsw_sp_acl_ruleset_ht_params); |
249 | } |
250 | |
251 | struct mlxsw_sp_acl_ruleset * |
252 | mlxsw_sp_acl_ruleset_lookup(struct mlxsw_sp *mlxsw_sp, |
253 | struct mlxsw_sp_flow_block *block, u32 chain_index, |
254 | enum mlxsw_sp_acl_profile profile) |
255 | { |
256 | const struct mlxsw_sp_acl_profile_ops *ops; |
257 | struct mlxsw_sp_acl *acl = mlxsw_sp->acl; |
258 | struct mlxsw_sp_acl_ruleset *ruleset; |
259 | |
260 | ops = mlxsw_sp_acl_tcam_profile_ops(mlxsw_sp, profile); |
261 | if (!ops) |
262 | return ERR_PTR(error: -EINVAL); |
263 | ruleset = __mlxsw_sp_acl_ruleset_lookup(acl, block, chain_index, ops); |
264 | if (!ruleset) |
265 | return ERR_PTR(error: -ENOENT); |
266 | return ruleset; |
267 | } |
268 | |
269 | struct mlxsw_sp_acl_ruleset * |
270 | mlxsw_sp_acl_ruleset_get(struct mlxsw_sp *mlxsw_sp, |
271 | struct mlxsw_sp_flow_block *block, u32 chain_index, |
272 | enum mlxsw_sp_acl_profile profile, |
273 | struct mlxsw_afk_element_usage *tmplt_elusage) |
274 | { |
275 | const struct mlxsw_sp_acl_profile_ops *ops; |
276 | struct mlxsw_sp_acl *acl = mlxsw_sp->acl; |
277 | struct mlxsw_sp_acl_ruleset *ruleset; |
278 | |
279 | ops = mlxsw_sp_acl_tcam_profile_ops(mlxsw_sp, profile); |
280 | if (!ops) |
281 | return ERR_PTR(error: -EINVAL); |
282 | |
283 | ruleset = __mlxsw_sp_acl_ruleset_lookup(acl, block, chain_index, ops); |
284 | if (ruleset) { |
285 | mlxsw_sp_acl_ruleset_ref_inc(ruleset); |
286 | return ruleset; |
287 | } |
288 | return mlxsw_sp_acl_ruleset_create(mlxsw_sp, block, chain_index, ops, |
289 | tmplt_elusage); |
290 | } |
291 | |
292 | void mlxsw_sp_acl_ruleset_put(struct mlxsw_sp *mlxsw_sp, |
293 | struct mlxsw_sp_acl_ruleset *ruleset) |
294 | { |
295 | mlxsw_sp_acl_ruleset_ref_dec(mlxsw_sp, ruleset); |
296 | } |
297 | |
298 | u16 mlxsw_sp_acl_ruleset_group_id(struct mlxsw_sp_acl_ruleset *ruleset) |
299 | { |
300 | const struct mlxsw_sp_acl_profile_ops *ops = ruleset->ht_key.ops; |
301 | |
302 | return ops->ruleset_group_id(ruleset->priv); |
303 | } |
304 | |
305 | void mlxsw_sp_acl_ruleset_prio_get(struct mlxsw_sp_acl_ruleset *ruleset, |
306 | unsigned int *p_min_prio, |
307 | unsigned int *p_max_prio) |
308 | { |
309 | *p_min_prio = ruleset->min_prio; |
310 | *p_max_prio = ruleset->max_prio; |
311 | } |
312 | |
313 | struct mlxsw_sp_acl_rule_info * |
314 | mlxsw_sp_acl_rulei_create(struct mlxsw_sp_acl *acl, |
315 | struct mlxsw_afa_block *afa_block) |
316 | { |
317 | struct mlxsw_sp_acl_rule_info *rulei; |
318 | int err; |
319 | |
320 | rulei = kzalloc(size: sizeof(*rulei), GFP_KERNEL); |
321 | if (!rulei) |
322 | return ERR_PTR(error: -ENOMEM); |
323 | |
324 | if (afa_block) { |
325 | rulei->act_block = afa_block; |
326 | return rulei; |
327 | } |
328 | |
329 | rulei->act_block = mlxsw_afa_block_create(mlxsw_afa: acl->mlxsw_sp->afa); |
330 | if (IS_ERR(ptr: rulei->act_block)) { |
331 | err = PTR_ERR(ptr: rulei->act_block); |
332 | goto err_afa_block_create; |
333 | } |
334 | rulei->action_created = 1; |
335 | return rulei; |
336 | |
337 | err_afa_block_create: |
338 | kfree(objp: rulei); |
339 | return ERR_PTR(error: err); |
340 | } |
341 | |
342 | void mlxsw_sp_acl_rulei_destroy(struct mlxsw_sp *mlxsw_sp, |
343 | struct mlxsw_sp_acl_rule_info *rulei) |
344 | { |
345 | if (rulei->action_created) |
346 | mlxsw_afa_block_destroy(block: rulei->act_block); |
347 | if (rulei->src_port_range_reg_valid) |
348 | mlxsw_sp_port_range_reg_put(mlxsw_sp, |
349 | prr_index: rulei->src_port_range_reg_index); |
350 | if (rulei->dst_port_range_reg_valid) |
351 | mlxsw_sp_port_range_reg_put(mlxsw_sp, |
352 | prr_index: rulei->dst_port_range_reg_index); |
353 | kfree(objp: rulei); |
354 | } |
355 | |
356 | int mlxsw_sp_acl_rulei_commit(struct mlxsw_sp_acl_rule_info *rulei) |
357 | { |
358 | return mlxsw_afa_block_commit(block: rulei->act_block); |
359 | } |
360 | |
361 | void mlxsw_sp_acl_rulei_priority(struct mlxsw_sp_acl_rule_info *rulei, |
362 | unsigned int priority) |
363 | { |
364 | rulei->priority = priority; |
365 | } |
366 | |
367 | void mlxsw_sp_acl_rulei_keymask_u32(struct mlxsw_sp_acl_rule_info *rulei, |
368 | enum mlxsw_afk_element element, |
369 | u32 key_value, u32 mask_value) |
370 | { |
371 | mlxsw_afk_values_add_u32(values: &rulei->values, element, |
372 | key_value, mask_value); |
373 | } |
374 | |
375 | void mlxsw_sp_acl_rulei_keymask_buf(struct mlxsw_sp_acl_rule_info *rulei, |
376 | enum mlxsw_afk_element element, |
377 | const char *key_value, |
378 | const char *mask_value, unsigned int len) |
379 | { |
380 | mlxsw_afk_values_add_buf(values: &rulei->values, element, |
381 | key_value, mask_value, len); |
382 | } |
383 | |
384 | int mlxsw_sp_acl_rulei_act_continue(struct mlxsw_sp_acl_rule_info *rulei) |
385 | { |
386 | return mlxsw_afa_block_continue(block: rulei->act_block); |
387 | } |
388 | |
389 | int mlxsw_sp_acl_rulei_act_jump(struct mlxsw_sp_acl_rule_info *rulei, |
390 | u16 group_id) |
391 | { |
392 | return mlxsw_afa_block_jump(block: rulei->act_block, group_id); |
393 | } |
394 | |
395 | int mlxsw_sp_acl_rulei_act_terminate(struct mlxsw_sp_acl_rule_info *rulei) |
396 | { |
397 | return mlxsw_afa_block_terminate(block: rulei->act_block); |
398 | } |
399 | |
400 | int mlxsw_sp_acl_rulei_act_drop(struct mlxsw_sp_acl_rule_info *rulei, |
401 | bool ingress, |
402 | const struct flow_action_cookie *fa_cookie, |
403 | struct netlink_ext_ack *extack) |
404 | { |
405 | return mlxsw_afa_block_append_drop(block: rulei->act_block, ingress, |
406 | fa_cookie, extack); |
407 | } |
408 | |
409 | int mlxsw_sp_acl_rulei_act_trap(struct mlxsw_sp_acl_rule_info *rulei) |
410 | { |
411 | return mlxsw_afa_block_append_trap(block: rulei->act_block, |
412 | trap_id: MLXSW_TRAP_ID_ACL0); |
413 | } |
414 | |
415 | int mlxsw_sp_acl_rulei_act_fwd(struct mlxsw_sp *mlxsw_sp, |
416 | struct mlxsw_sp_acl_rule_info *rulei, |
417 | struct net_device *out_dev, |
418 | struct netlink_ext_ack *extack) |
419 | { |
420 | struct mlxsw_sp_port *mlxsw_sp_port; |
421 | u16 local_port; |
422 | bool in_port; |
423 | |
424 | if (out_dev) { |
425 | if (!mlxsw_sp_port_dev_check(dev: out_dev)) { |
426 | NL_SET_ERR_MSG_MOD(extack, "Invalid output device" ); |
427 | return -EINVAL; |
428 | } |
429 | mlxsw_sp_port = netdev_priv(dev: out_dev); |
430 | if (mlxsw_sp_port->mlxsw_sp != mlxsw_sp) { |
431 | NL_SET_ERR_MSG_MOD(extack, "Invalid output device" ); |
432 | return -EINVAL; |
433 | } |
434 | local_port = mlxsw_sp_port->local_port; |
435 | in_port = false; |
436 | } else { |
437 | /* If out_dev is NULL, the caller wants to |
438 | * set forward to ingress port. |
439 | */ |
440 | local_port = 0; |
441 | in_port = true; |
442 | } |
443 | return mlxsw_afa_block_append_fwd(block: rulei->act_block, |
444 | local_port, in_port, extack); |
445 | } |
446 | |
447 | int mlxsw_sp_acl_rulei_act_mirror(struct mlxsw_sp *mlxsw_sp, |
448 | struct mlxsw_sp_acl_rule_info *rulei, |
449 | struct mlxsw_sp_flow_block *block, |
450 | struct net_device *out_dev, |
451 | struct netlink_ext_ack *extack) |
452 | { |
453 | struct mlxsw_sp_flow_block_binding *binding; |
454 | struct mlxsw_sp_port *in_port; |
455 | |
456 | if (!list_is_singular(head: &block->binding_list)) { |
457 | NL_SET_ERR_MSG_MOD(extack, "Only a single mirror source is allowed" ); |
458 | return -EOPNOTSUPP; |
459 | } |
460 | binding = list_first_entry(&block->binding_list, |
461 | struct mlxsw_sp_flow_block_binding, list); |
462 | in_port = binding->mlxsw_sp_port; |
463 | |
464 | return mlxsw_afa_block_append_mirror(block: rulei->act_block, |
465 | local_in_port: in_port->local_port, |
466 | out_dev, |
467 | ingress: binding->ingress, |
468 | extack); |
469 | } |
470 | |
471 | int mlxsw_sp_acl_rulei_act_vlan(struct mlxsw_sp *mlxsw_sp, |
472 | struct mlxsw_sp_acl_rule_info *rulei, |
473 | u32 action, u16 vid, u16 proto, u8 prio, |
474 | struct netlink_ext_ack *extack) |
475 | { |
476 | u8 ethertype; |
477 | |
478 | if (action == FLOW_ACTION_VLAN_MANGLE) { |
479 | switch (proto) { |
480 | case ETH_P_8021Q: |
481 | ethertype = 0; |
482 | break; |
483 | case ETH_P_8021AD: |
484 | ethertype = 1; |
485 | break; |
486 | default: |
487 | NL_SET_ERR_MSG_MOD(extack, "Unsupported VLAN protocol" ); |
488 | dev_err(mlxsw_sp->bus_info->dev, "Unsupported VLAN protocol %#04x\n" , |
489 | proto); |
490 | return -EINVAL; |
491 | } |
492 | |
493 | return mlxsw_afa_block_append_vlan_modify(block: rulei->act_block, |
494 | vid, pcp: prio, et: ethertype, |
495 | extack); |
496 | } else { |
497 | NL_SET_ERR_MSG_MOD(extack, "Unsupported VLAN action" ); |
498 | dev_err(mlxsw_sp->bus_info->dev, "Unsupported VLAN action\n" ); |
499 | return -EINVAL; |
500 | } |
501 | } |
502 | |
503 | int mlxsw_sp_acl_rulei_act_priority(struct mlxsw_sp *mlxsw_sp, |
504 | struct mlxsw_sp_acl_rule_info *rulei, |
505 | u32 prio, struct netlink_ext_ack *extack) |
506 | { |
507 | /* Even though both Linux and Spectrum switches support 16 priorities, |
508 | * spectrum_qdisc only processes the first eight priomap elements, and |
509 | * the DCB and PFC features are tied to 8 priorities as well. Therefore |
510 | * bounce attempts to prioritize packets to higher priorities. |
511 | */ |
512 | if (prio >= IEEE_8021QAZ_MAX_TCS) { |
513 | NL_SET_ERR_MSG_MOD(extack, "Only priorities 0..7 are supported" ); |
514 | return -EINVAL; |
515 | } |
516 | return mlxsw_afa_block_append_qos_switch_prio(block: rulei->act_block, prio, |
517 | extack); |
518 | } |
519 | |
520 | struct mlxsw_sp_acl_mangle_action { |
521 | enum flow_action_mangle_base htype; |
522 | /* Offset is u32-aligned. */ |
523 | u32 offset; |
524 | /* Mask bits are unset for the modified field. */ |
525 | u32 mask; |
526 | /* Shift required to extract the set value. */ |
527 | u32 shift; |
528 | enum mlxsw_sp_acl_mangle_field field; |
529 | }; |
530 | |
531 | #define MLXSW_SP_ACL_MANGLE_ACTION(_htype, _offset, _mask, _shift, _field) \ |
532 | { \ |
533 | .htype = _htype, \ |
534 | .offset = _offset, \ |
535 | .mask = _mask, \ |
536 | .shift = _shift, \ |
537 | .field = MLXSW_SP_ACL_MANGLE_FIELD_##_field, \ |
538 | } |
539 | |
540 | #define MLXSW_SP_ACL_MANGLE_ACTION_IP4(_offset, _mask, _shift, _field) \ |
541 | MLXSW_SP_ACL_MANGLE_ACTION(FLOW_ACT_MANGLE_HDR_TYPE_IP4, \ |
542 | _offset, _mask, _shift, _field) |
543 | |
544 | #define MLXSW_SP_ACL_MANGLE_ACTION_IP6(_offset, _mask, _shift, _field) \ |
545 | MLXSW_SP_ACL_MANGLE_ACTION(FLOW_ACT_MANGLE_HDR_TYPE_IP6, \ |
546 | _offset, _mask, _shift, _field) |
547 | |
548 | #define MLXSW_SP_ACL_MANGLE_ACTION_TCP(_offset, _mask, _shift, _field) \ |
549 | MLXSW_SP_ACL_MANGLE_ACTION(FLOW_ACT_MANGLE_HDR_TYPE_TCP, _offset, _mask, _shift, _field) |
550 | |
551 | #define MLXSW_SP_ACL_MANGLE_ACTION_UDP(_offset, _mask, _shift, _field) \ |
552 | MLXSW_SP_ACL_MANGLE_ACTION(FLOW_ACT_MANGLE_HDR_TYPE_UDP, _offset, _mask, _shift, _field) |
553 | |
554 | static struct mlxsw_sp_acl_mangle_action mlxsw_sp_acl_mangle_actions[] = { |
555 | MLXSW_SP_ACL_MANGLE_ACTION_IP4(0, 0xff00ffff, 16, IP_DSFIELD), |
556 | MLXSW_SP_ACL_MANGLE_ACTION_IP4(0, 0xff03ffff, 18, IP_DSCP), |
557 | MLXSW_SP_ACL_MANGLE_ACTION_IP4(0, 0xfffcffff, 16, IP_ECN), |
558 | |
559 | MLXSW_SP_ACL_MANGLE_ACTION_IP6(0, 0xf00fffff, 20, IP_DSFIELD), |
560 | MLXSW_SP_ACL_MANGLE_ACTION_IP6(0, 0xf03fffff, 22, IP_DSCP), |
561 | MLXSW_SP_ACL_MANGLE_ACTION_IP6(0, 0xffcfffff, 20, IP_ECN), |
562 | |
563 | MLXSW_SP_ACL_MANGLE_ACTION_TCP(0, 0x0000ffff, 16, IP_SPORT), |
564 | MLXSW_SP_ACL_MANGLE_ACTION_TCP(0, 0xffff0000, 0, IP_DPORT), |
565 | |
566 | MLXSW_SP_ACL_MANGLE_ACTION_UDP(0, 0x0000ffff, 16, IP_SPORT), |
567 | MLXSW_SP_ACL_MANGLE_ACTION_UDP(0, 0xffff0000, 0, IP_DPORT), |
568 | |
569 | MLXSW_SP_ACL_MANGLE_ACTION_IP4(12, 0x00000000, 0, IP4_SIP), |
570 | MLXSW_SP_ACL_MANGLE_ACTION_IP4(16, 0x00000000, 0, IP4_DIP), |
571 | |
572 | MLXSW_SP_ACL_MANGLE_ACTION_IP6(8, 0x00000000, 0, IP6_SIP_1), |
573 | MLXSW_SP_ACL_MANGLE_ACTION_IP6(12, 0x00000000, 0, IP6_SIP_2), |
574 | MLXSW_SP_ACL_MANGLE_ACTION_IP6(16, 0x00000000, 0, IP6_SIP_3), |
575 | MLXSW_SP_ACL_MANGLE_ACTION_IP6(20, 0x00000000, 0, IP6_SIP_4), |
576 | MLXSW_SP_ACL_MANGLE_ACTION_IP6(24, 0x00000000, 0, IP6_DIP_1), |
577 | MLXSW_SP_ACL_MANGLE_ACTION_IP6(28, 0x00000000, 0, IP6_DIP_2), |
578 | MLXSW_SP_ACL_MANGLE_ACTION_IP6(32, 0x00000000, 0, IP6_DIP_3), |
579 | MLXSW_SP_ACL_MANGLE_ACTION_IP6(36, 0x00000000, 0, IP6_DIP_4), |
580 | }; |
581 | |
582 | static int |
583 | mlxsw_sp_acl_rulei_act_mangle_field(struct mlxsw_sp *mlxsw_sp, |
584 | struct mlxsw_sp_acl_rule_info *rulei, |
585 | struct mlxsw_sp_acl_mangle_action *mact, |
586 | u32 val, struct netlink_ext_ack *extack) |
587 | { |
588 | switch (mact->field) { |
589 | case MLXSW_SP_ACL_MANGLE_FIELD_IP_DSFIELD: |
590 | return mlxsw_afa_block_append_qos_dsfield(block: rulei->act_block, |
591 | dsfield: val, extack); |
592 | case MLXSW_SP_ACL_MANGLE_FIELD_IP_DSCP: |
593 | return mlxsw_afa_block_append_qos_dscp(block: rulei->act_block, |
594 | dscp: val, extack); |
595 | case MLXSW_SP_ACL_MANGLE_FIELD_IP_ECN: |
596 | return mlxsw_afa_block_append_qos_ecn(block: rulei->act_block, |
597 | ecn: val, extack); |
598 | default: |
599 | return -EOPNOTSUPP; |
600 | } |
601 | } |
602 | |
603 | static int mlxsw_sp1_acl_rulei_act_mangle_field(struct mlxsw_sp *mlxsw_sp, |
604 | struct mlxsw_sp_acl_rule_info *rulei, |
605 | struct mlxsw_sp_acl_mangle_action *mact, |
606 | u32 val, struct netlink_ext_ack *extack) |
607 | { |
608 | int err; |
609 | |
610 | err = mlxsw_sp_acl_rulei_act_mangle_field(mlxsw_sp, rulei, mact, val, extack); |
611 | if (err != -EOPNOTSUPP) |
612 | return err; |
613 | |
614 | NL_SET_ERR_MSG_MOD(extack, "Unsupported mangle field" ); |
615 | return err; |
616 | } |
617 | |
618 | static int |
619 | mlxsw_sp2_acl_rulei_act_mangle_field_ip_odd(struct mlxsw_sp_acl_rule_info *rulei, |
620 | enum mlxsw_sp_acl_mangle_field field, |
621 | u32 val, struct netlink_ext_ack *extack) |
622 | { |
623 | if (!rulei->ipv6_valid) { |
624 | rulei->ipv6.prev_val = val; |
625 | rulei->ipv6_valid = true; |
626 | rulei->ipv6.prev_field = field; |
627 | return 0; |
628 | } |
629 | |
630 | NL_SET_ERR_MSG_MOD(extack, "Unsupported mangle field order" ); |
631 | return -EOPNOTSUPP; |
632 | } |
633 | |
634 | static int mlxsw_sp2_acl_rulei_act_mangle_field(struct mlxsw_sp *mlxsw_sp, |
635 | struct mlxsw_sp_acl_rule_info *rulei, |
636 | struct mlxsw_sp_acl_mangle_action *mact, |
637 | u32 val, struct netlink_ext_ack *extack) |
638 | { |
639 | int err; |
640 | |
641 | err = mlxsw_sp_acl_rulei_act_mangle_field(mlxsw_sp, rulei, mact, val, extack); |
642 | if (err != -EOPNOTSUPP) |
643 | return err; |
644 | |
645 | switch (mact->field) { |
646 | case MLXSW_SP_ACL_MANGLE_FIELD_IP_SPORT: |
647 | return mlxsw_afa_block_append_l4port(block: rulei->act_block, is_dport: false, l4_port: val, extack); |
648 | case MLXSW_SP_ACL_MANGLE_FIELD_IP_DPORT: |
649 | return mlxsw_afa_block_append_l4port(block: rulei->act_block, is_dport: true, l4_port: val, extack); |
650 | /* IPv4 fields */ |
651 | case MLXSW_SP_ACL_MANGLE_FIELD_IP4_SIP: |
652 | return mlxsw_afa_block_append_ip(block: rulei->act_block, is_dip: false, |
653 | is_lsb: true, val_31_0: val, val_63_32: 0, extack); |
654 | case MLXSW_SP_ACL_MANGLE_FIELD_IP4_DIP: |
655 | return mlxsw_afa_block_append_ip(block: rulei->act_block, is_dip: true, |
656 | is_lsb: true, val_31_0: val, val_63_32: 0, extack); |
657 | /* IPv6 fields */ |
658 | case MLXSW_SP_ACL_MANGLE_FIELD_IP6_SIP_1: |
659 | case MLXSW_SP_ACL_MANGLE_FIELD_IP6_SIP_3: |
660 | case MLXSW_SP_ACL_MANGLE_FIELD_IP6_DIP_1: |
661 | case MLXSW_SP_ACL_MANGLE_FIELD_IP6_DIP_3: |
662 | return mlxsw_sp2_acl_rulei_act_mangle_field_ip_odd(rulei, |
663 | field: mact->field, |
664 | val, extack); |
665 | case MLXSW_SP_ACL_MANGLE_FIELD_IP6_SIP_2: |
666 | if (rulei->ipv6_valid && |
667 | rulei->ipv6.prev_field == MLXSW_SP_ACL_MANGLE_FIELD_IP6_SIP_1) { |
668 | rulei->ipv6_valid = false; |
669 | return mlxsw_afa_block_append_ip(block: rulei->act_block, |
670 | is_dip: false, is_lsb: false, val_31_0: val, |
671 | val_63_32: rulei->ipv6.prev_val, |
672 | extack); |
673 | } |
674 | break; |
675 | case MLXSW_SP_ACL_MANGLE_FIELD_IP6_SIP_4: |
676 | if (rulei->ipv6_valid && |
677 | rulei->ipv6.prev_field == MLXSW_SP_ACL_MANGLE_FIELD_IP6_SIP_3) { |
678 | rulei->ipv6_valid = false; |
679 | return mlxsw_afa_block_append_ip(block: rulei->act_block, |
680 | is_dip: false, is_lsb: true, val_31_0: val, |
681 | val_63_32: rulei->ipv6.prev_val, |
682 | extack); |
683 | } |
684 | break; |
685 | case MLXSW_SP_ACL_MANGLE_FIELD_IP6_DIP_2: |
686 | if (rulei->ipv6_valid && |
687 | rulei->ipv6.prev_field == MLXSW_SP_ACL_MANGLE_FIELD_IP6_DIP_1) { |
688 | rulei->ipv6_valid = false; |
689 | return mlxsw_afa_block_append_ip(block: rulei->act_block, |
690 | is_dip: true, is_lsb: false, val_31_0: val, |
691 | val_63_32: rulei->ipv6.prev_val, |
692 | extack); |
693 | } |
694 | break; |
695 | case MLXSW_SP_ACL_MANGLE_FIELD_IP6_DIP_4: |
696 | if (rulei->ipv6_valid && |
697 | rulei->ipv6.prev_field == MLXSW_SP_ACL_MANGLE_FIELD_IP6_DIP_3) { |
698 | rulei->ipv6_valid = false; |
699 | return mlxsw_afa_block_append_ip(block: rulei->act_block, |
700 | is_dip: true, is_lsb: true, val_31_0: val, |
701 | val_63_32: rulei->ipv6.prev_val, |
702 | extack); |
703 | } |
704 | break; |
705 | default: |
706 | break; |
707 | } |
708 | |
709 | NL_SET_ERR_MSG_MOD(extack, "Unsupported mangle field" ); |
710 | return err; |
711 | } |
712 | |
713 | int mlxsw_sp_acl_rulei_act_mangle(struct mlxsw_sp *mlxsw_sp, |
714 | struct mlxsw_sp_acl_rule_info *rulei, |
715 | enum flow_action_mangle_base htype, |
716 | u32 offset, u32 mask, u32 val, |
717 | struct netlink_ext_ack *extack) |
718 | { |
719 | const struct mlxsw_sp_acl_rulei_ops *acl_rulei_ops = mlxsw_sp->acl_rulei_ops; |
720 | struct mlxsw_sp_acl_mangle_action *mact; |
721 | size_t i; |
722 | |
723 | for (i = 0; i < ARRAY_SIZE(mlxsw_sp_acl_mangle_actions); ++i) { |
724 | mact = &mlxsw_sp_acl_mangle_actions[i]; |
725 | if (mact->htype == htype && |
726 | mact->offset == offset && |
727 | mact->mask == mask) { |
728 | val >>= mact->shift; |
729 | return acl_rulei_ops->act_mangle_field(mlxsw_sp, |
730 | rulei, mact, |
731 | val, extack); |
732 | } |
733 | } |
734 | |
735 | NL_SET_ERR_MSG_MOD(extack, "Unknown mangle field" ); |
736 | return -EINVAL; |
737 | } |
738 | |
739 | int mlxsw_sp_acl_rulei_act_police(struct mlxsw_sp *mlxsw_sp, |
740 | struct mlxsw_sp_acl_rule_info *rulei, |
741 | u32 index, u64 rate_bytes_ps, |
742 | u32 burst, struct netlink_ext_ack *extack) |
743 | { |
744 | int err; |
745 | |
746 | err = mlxsw_afa_block_append_police(block: rulei->act_block, fa_index: index, |
747 | rate_bytes_ps, burst, |
748 | p_policer_index: &rulei->policer_index, extack); |
749 | if (err) |
750 | return err; |
751 | |
752 | rulei->policer_index_valid = true; |
753 | |
754 | return 0; |
755 | } |
756 | |
757 | int mlxsw_sp_acl_rulei_act_count(struct mlxsw_sp *mlxsw_sp, |
758 | struct mlxsw_sp_acl_rule_info *rulei, |
759 | struct netlink_ext_ack *extack) |
760 | { |
761 | int err; |
762 | |
763 | err = mlxsw_afa_block_append_counter(block: rulei->act_block, |
764 | p_counter_index: &rulei->counter_index, extack); |
765 | if (err) |
766 | return err; |
767 | rulei->counter_valid = true; |
768 | return 0; |
769 | } |
770 | |
771 | int mlxsw_sp_acl_rulei_act_fid_set(struct mlxsw_sp *mlxsw_sp, |
772 | struct mlxsw_sp_acl_rule_info *rulei, |
773 | u16 fid, struct netlink_ext_ack *extack) |
774 | { |
775 | return mlxsw_afa_block_append_fid_set(block: rulei->act_block, fid, extack); |
776 | } |
777 | |
778 | int mlxsw_sp_acl_rulei_act_ignore(struct mlxsw_sp *mlxsw_sp, |
779 | struct mlxsw_sp_acl_rule_info *rulei, |
780 | bool disable_learning, bool disable_security) |
781 | { |
782 | return mlxsw_afa_block_append_ignore(block: rulei->act_block, |
783 | disable_learning, |
784 | disable_security); |
785 | } |
786 | |
787 | int mlxsw_sp_acl_rulei_act_sample(struct mlxsw_sp *mlxsw_sp, |
788 | struct mlxsw_sp_acl_rule_info *rulei, |
789 | struct mlxsw_sp_flow_block *block, |
790 | struct psample_group *psample_group, u32 rate, |
791 | u32 trunc_size, bool truncate, |
792 | struct netlink_ext_ack *extack) |
793 | { |
794 | struct mlxsw_sp_flow_block_binding *binding; |
795 | struct mlxsw_sp_port *mlxsw_sp_port; |
796 | |
797 | if (!list_is_singular(head: &block->binding_list)) { |
798 | NL_SET_ERR_MSG_MOD(extack, "Only a single sampling source is allowed" ); |
799 | return -EOPNOTSUPP; |
800 | } |
801 | binding = list_first_entry(&block->binding_list, |
802 | struct mlxsw_sp_flow_block_binding, list); |
803 | mlxsw_sp_port = binding->mlxsw_sp_port; |
804 | |
805 | return mlxsw_afa_block_append_sampler(block: rulei->act_block, |
806 | local_port: mlxsw_sp_port->local_port, |
807 | psample_group, rate, trunc_size, |
808 | truncate, ingress: binding->ingress, |
809 | extack); |
810 | } |
811 | |
812 | struct mlxsw_sp_acl_rule * |
813 | mlxsw_sp_acl_rule_create(struct mlxsw_sp *mlxsw_sp, |
814 | struct mlxsw_sp_acl_ruleset *ruleset, |
815 | unsigned long cookie, |
816 | struct mlxsw_afa_block *afa_block, |
817 | struct netlink_ext_ack *extack) |
818 | { |
819 | const struct mlxsw_sp_acl_profile_ops *ops = ruleset->ht_key.ops; |
820 | struct mlxsw_sp_acl_rule *rule; |
821 | int err; |
822 | |
823 | mlxsw_sp_acl_ruleset_ref_inc(ruleset); |
824 | rule = kzalloc(size: sizeof(*rule) + ops->rule_priv_size, |
825 | GFP_KERNEL); |
826 | if (!rule) { |
827 | err = -ENOMEM; |
828 | goto err_alloc; |
829 | } |
830 | rule->cookie = cookie; |
831 | rule->ruleset = ruleset; |
832 | |
833 | rule->rulei = mlxsw_sp_acl_rulei_create(acl: mlxsw_sp->acl, afa_block); |
834 | if (IS_ERR(ptr: rule->rulei)) { |
835 | err = PTR_ERR(ptr: rule->rulei); |
836 | goto err_rulei_create; |
837 | } |
838 | |
839 | return rule; |
840 | |
841 | err_rulei_create: |
842 | kfree(objp: rule); |
843 | err_alloc: |
844 | mlxsw_sp_acl_ruleset_ref_dec(mlxsw_sp, ruleset); |
845 | return ERR_PTR(error: err); |
846 | } |
847 | |
848 | void mlxsw_sp_acl_rule_destroy(struct mlxsw_sp *mlxsw_sp, |
849 | struct mlxsw_sp_acl_rule *rule) |
850 | { |
851 | struct mlxsw_sp_acl_ruleset *ruleset = rule->ruleset; |
852 | |
853 | mlxsw_sp_acl_rulei_destroy(mlxsw_sp, rulei: rule->rulei); |
854 | kfree(objp: rule); |
855 | mlxsw_sp_acl_ruleset_ref_dec(mlxsw_sp, ruleset); |
856 | } |
857 | |
858 | int mlxsw_sp_acl_rule_add(struct mlxsw_sp *mlxsw_sp, |
859 | struct mlxsw_sp_acl_rule *rule) |
860 | { |
861 | struct mlxsw_sp_acl_ruleset *ruleset = rule->ruleset; |
862 | const struct mlxsw_sp_acl_profile_ops *ops = ruleset->ht_key.ops; |
863 | struct mlxsw_sp_flow_block *block = ruleset->ht_key.block; |
864 | int err; |
865 | |
866 | err = ops->rule_add(mlxsw_sp, ruleset->priv, rule->priv, rule->rulei); |
867 | if (err) |
868 | return err; |
869 | |
870 | err = rhashtable_insert_fast(ht: &ruleset->rule_ht, obj: &rule->ht_node, |
871 | params: mlxsw_sp_acl_rule_ht_params); |
872 | if (err) |
873 | goto err_rhashtable_insert; |
874 | |
875 | if (!ruleset->ht_key.chain_index && |
876 | mlxsw_sp_acl_ruleset_is_singular(ruleset)) { |
877 | /* We only need ruleset with chain index 0, the implicit |
878 | * one, to be directly bound to device. The rest of the |
879 | * rulesets are bound by "Goto action set". |
880 | */ |
881 | err = mlxsw_sp_acl_ruleset_block_bind(mlxsw_sp, ruleset, block); |
882 | if (err) |
883 | goto err_ruleset_block_bind; |
884 | } |
885 | |
886 | mutex_lock(&mlxsw_sp->acl->rules_lock); |
887 | list_add_tail(new: &rule->list, head: &mlxsw_sp->acl->rules); |
888 | mutex_unlock(lock: &mlxsw_sp->acl->rules_lock); |
889 | block->rule_count++; |
890 | block->ingress_blocker_rule_count += rule->rulei->ingress_bind_blocker; |
891 | block->egress_blocker_rule_count += rule->rulei->egress_bind_blocker; |
892 | return 0; |
893 | |
894 | err_ruleset_block_bind: |
895 | rhashtable_remove_fast(ht: &ruleset->rule_ht, obj: &rule->ht_node, |
896 | params: mlxsw_sp_acl_rule_ht_params); |
897 | err_rhashtable_insert: |
898 | ops->rule_del(mlxsw_sp, rule->priv); |
899 | return err; |
900 | } |
901 | |
902 | void mlxsw_sp_acl_rule_del(struct mlxsw_sp *mlxsw_sp, |
903 | struct mlxsw_sp_acl_rule *rule) |
904 | { |
905 | struct mlxsw_sp_acl_ruleset *ruleset = rule->ruleset; |
906 | const struct mlxsw_sp_acl_profile_ops *ops = ruleset->ht_key.ops; |
907 | struct mlxsw_sp_flow_block *block = ruleset->ht_key.block; |
908 | |
909 | block->egress_blocker_rule_count -= rule->rulei->egress_bind_blocker; |
910 | block->ingress_blocker_rule_count -= rule->rulei->ingress_bind_blocker; |
911 | block->rule_count--; |
912 | mutex_lock(&mlxsw_sp->acl->rules_lock); |
913 | list_del(entry: &rule->list); |
914 | mutex_unlock(lock: &mlxsw_sp->acl->rules_lock); |
915 | if (!ruleset->ht_key.chain_index && |
916 | mlxsw_sp_acl_ruleset_is_singular(ruleset)) |
917 | mlxsw_sp_acl_ruleset_block_unbind(mlxsw_sp, ruleset, block); |
918 | rhashtable_remove_fast(ht: &ruleset->rule_ht, obj: &rule->ht_node, |
919 | params: mlxsw_sp_acl_rule_ht_params); |
920 | ops->rule_del(mlxsw_sp, rule->priv); |
921 | } |
922 | |
923 | int mlxsw_sp_acl_rule_action_replace(struct mlxsw_sp *mlxsw_sp, |
924 | struct mlxsw_sp_acl_rule *rule, |
925 | struct mlxsw_afa_block *afa_block) |
926 | { |
927 | struct mlxsw_sp_acl_ruleset *ruleset = rule->ruleset; |
928 | const struct mlxsw_sp_acl_profile_ops *ops = ruleset->ht_key.ops; |
929 | struct mlxsw_sp_acl_rule_info *rulei; |
930 | |
931 | rulei = mlxsw_sp_acl_rule_rulei(rule); |
932 | rulei->act_block = afa_block; |
933 | |
934 | return ops->rule_action_replace(mlxsw_sp, rule->priv, rule->rulei); |
935 | } |
936 | |
937 | struct mlxsw_sp_acl_rule * |
938 | mlxsw_sp_acl_rule_lookup(struct mlxsw_sp *mlxsw_sp, |
939 | struct mlxsw_sp_acl_ruleset *ruleset, |
940 | unsigned long cookie) |
941 | { |
942 | return rhashtable_lookup_fast(ht: &ruleset->rule_ht, key: &cookie, |
943 | params: mlxsw_sp_acl_rule_ht_params); |
944 | } |
945 | |
946 | struct mlxsw_sp_acl_rule_info * |
947 | mlxsw_sp_acl_rule_rulei(struct mlxsw_sp_acl_rule *rule) |
948 | { |
949 | return rule->rulei; |
950 | } |
951 | |
952 | static int mlxsw_sp_acl_rule_activity_update(struct mlxsw_sp *mlxsw_sp, |
953 | struct mlxsw_sp_acl_rule *rule) |
954 | { |
955 | struct mlxsw_sp_acl_ruleset *ruleset = rule->ruleset; |
956 | const struct mlxsw_sp_acl_profile_ops *ops = ruleset->ht_key.ops; |
957 | bool active; |
958 | int err; |
959 | |
960 | err = ops->rule_activity_get(mlxsw_sp, rule->priv, &active); |
961 | if (err) |
962 | return err; |
963 | if (active) |
964 | rule->last_used = jiffies; |
965 | return 0; |
966 | } |
967 | |
968 | static int mlxsw_sp_acl_rules_activity_update(struct mlxsw_sp_acl *acl) |
969 | { |
970 | struct mlxsw_sp_acl_rule *rule; |
971 | int err; |
972 | |
973 | mutex_lock(&acl->rules_lock); |
974 | list_for_each_entry(rule, &acl->rules, list) { |
975 | err = mlxsw_sp_acl_rule_activity_update(mlxsw_sp: acl->mlxsw_sp, |
976 | rule); |
977 | if (err) |
978 | goto err_rule_update; |
979 | } |
980 | mutex_unlock(lock: &acl->rules_lock); |
981 | return 0; |
982 | |
983 | err_rule_update: |
984 | mutex_unlock(lock: &acl->rules_lock); |
985 | return err; |
986 | } |
987 | |
988 | static void mlxsw_sp_acl_rule_activity_work_schedule(struct mlxsw_sp_acl *acl) |
989 | { |
990 | unsigned long interval = acl->rule_activity_update.interval; |
991 | |
992 | mlxsw_core_schedule_dw(dwork: &acl->rule_activity_update.dw, |
993 | delay: msecs_to_jiffies(m: interval)); |
994 | } |
995 | |
996 | static void mlxsw_sp_acl_rule_activity_update_work(struct work_struct *work) |
997 | { |
998 | struct mlxsw_sp_acl *acl = container_of(work, struct mlxsw_sp_acl, |
999 | rule_activity_update.dw.work); |
1000 | int err; |
1001 | |
1002 | err = mlxsw_sp_acl_rules_activity_update(acl); |
1003 | if (err) |
1004 | dev_err(acl->mlxsw_sp->bus_info->dev, "Could not update acl activity" ); |
1005 | |
1006 | mlxsw_sp_acl_rule_activity_work_schedule(acl); |
1007 | } |
1008 | |
1009 | int mlxsw_sp_acl_rule_get_stats(struct mlxsw_sp *mlxsw_sp, |
1010 | struct mlxsw_sp_acl_rule *rule, |
1011 | u64 *packets, u64 *bytes, u64 *drops, |
1012 | u64 *last_use, |
1013 | enum flow_action_hw_stats *used_hw_stats) |
1014 | |
1015 | { |
1016 | enum mlxsw_sp_policer_type type = MLXSW_SP_POLICER_TYPE_SINGLE_RATE; |
1017 | struct mlxsw_sp_acl_rule_info *rulei; |
1018 | u64 current_packets = 0; |
1019 | u64 current_bytes = 0; |
1020 | u64 current_drops = 0; |
1021 | int err; |
1022 | |
1023 | rulei = mlxsw_sp_acl_rule_rulei(rule); |
1024 | if (rulei->counter_valid) { |
1025 | err = mlxsw_sp_flow_counter_get(mlxsw_sp, counter_index: rulei->counter_index, |
1026 | packets: ¤t_packets, |
1027 | bytes: ¤t_bytes); |
1028 | if (err) |
1029 | return err; |
1030 | *used_hw_stats = FLOW_ACTION_HW_STATS_IMMEDIATE; |
1031 | } |
1032 | if (rulei->policer_index_valid) { |
1033 | err = mlxsw_sp_policer_drops_counter_get(mlxsw_sp, type, |
1034 | policer_index: rulei->policer_index, |
1035 | p_drops: ¤t_drops); |
1036 | if (err) |
1037 | return err; |
1038 | } |
1039 | *packets = current_packets - rule->last_packets; |
1040 | *bytes = current_bytes - rule->last_bytes; |
1041 | *drops = current_drops - rule->last_drops; |
1042 | *last_use = rule->last_used; |
1043 | |
1044 | rule->last_bytes = current_bytes; |
1045 | rule->last_packets = current_packets; |
1046 | rule->last_drops = current_drops; |
1047 | |
1048 | return 0; |
1049 | } |
1050 | |
1051 | int mlxsw_sp_acl_init(struct mlxsw_sp *mlxsw_sp) |
1052 | { |
1053 | struct mlxsw_sp_fid *fid; |
1054 | struct mlxsw_sp_acl *acl; |
1055 | size_t alloc_size; |
1056 | int err; |
1057 | |
1058 | alloc_size = sizeof(*acl) + mlxsw_sp_acl_tcam_priv_size(mlxsw_sp); |
1059 | acl = kzalloc(size: alloc_size, GFP_KERNEL); |
1060 | if (!acl) |
1061 | return -ENOMEM; |
1062 | mlxsw_sp->acl = acl; |
1063 | acl->mlxsw_sp = mlxsw_sp; |
1064 | acl->afk = mlxsw_afk_create(MLXSW_CORE_RES_GET(mlxsw_sp->core, |
1065 | ACL_FLEX_KEYS), |
1066 | ops: mlxsw_sp->afk_ops); |
1067 | if (!acl->afk) { |
1068 | err = -ENOMEM; |
1069 | goto err_afk_create; |
1070 | } |
1071 | |
1072 | err = rhashtable_init(ht: &acl->ruleset_ht, |
1073 | params: &mlxsw_sp_acl_ruleset_ht_params); |
1074 | if (err) |
1075 | goto err_rhashtable_init; |
1076 | |
1077 | fid = mlxsw_sp_fid_dummy_get(mlxsw_sp); |
1078 | if (IS_ERR(ptr: fid)) { |
1079 | err = PTR_ERR(ptr: fid); |
1080 | goto err_fid_get; |
1081 | } |
1082 | acl->dummy_fid = fid; |
1083 | |
1084 | INIT_LIST_HEAD(list: &acl->rules); |
1085 | mutex_init(&acl->rules_lock); |
1086 | err = mlxsw_sp_acl_tcam_init(mlxsw_sp, tcam: &acl->tcam); |
1087 | if (err) |
1088 | goto err_acl_ops_init; |
1089 | |
1090 | /* Create the delayed work for the rule activity_update */ |
1091 | INIT_DELAYED_WORK(&acl->rule_activity_update.dw, |
1092 | mlxsw_sp_acl_rule_activity_update_work); |
1093 | acl->rule_activity_update.interval = MLXSW_SP_ACL_RULE_ACTIVITY_UPDATE_PERIOD_MS; |
1094 | mlxsw_core_schedule_dw(dwork: &acl->rule_activity_update.dw, delay: 0); |
1095 | return 0; |
1096 | |
1097 | err_acl_ops_init: |
1098 | mutex_destroy(lock: &acl->rules_lock); |
1099 | mlxsw_sp_fid_put(fid); |
1100 | err_fid_get: |
1101 | rhashtable_destroy(ht: &acl->ruleset_ht); |
1102 | err_rhashtable_init: |
1103 | mlxsw_afk_destroy(mlxsw_afk: acl->afk); |
1104 | err_afk_create: |
1105 | kfree(objp: acl); |
1106 | return err; |
1107 | } |
1108 | |
1109 | void mlxsw_sp_acl_fini(struct mlxsw_sp *mlxsw_sp) |
1110 | { |
1111 | struct mlxsw_sp_acl *acl = mlxsw_sp->acl; |
1112 | |
1113 | cancel_delayed_work_sync(dwork: &mlxsw_sp->acl->rule_activity_update.dw); |
1114 | mlxsw_sp_acl_tcam_fini(mlxsw_sp, tcam: &acl->tcam); |
1115 | mutex_destroy(lock: &acl->rules_lock); |
1116 | WARN_ON(!list_empty(&acl->rules)); |
1117 | mlxsw_sp_fid_put(fid: acl->dummy_fid); |
1118 | rhashtable_destroy(ht: &acl->ruleset_ht); |
1119 | mlxsw_afk_destroy(mlxsw_afk: acl->afk); |
1120 | kfree(objp: acl); |
1121 | } |
1122 | |
1123 | struct mlxsw_sp_acl_rulei_ops mlxsw_sp1_acl_rulei_ops = { |
1124 | .act_mangle_field = mlxsw_sp1_acl_rulei_act_mangle_field, |
1125 | }; |
1126 | |
1127 | struct mlxsw_sp_acl_rulei_ops mlxsw_sp2_acl_rulei_ops = { |
1128 | .act_mangle_field = mlxsw_sp2_acl_rulei_act_mangle_field, |
1129 | }; |
1130 | |