Commit | Line | Data |
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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
2 | #ifndef __NET_PKT_CLS_H |
3 | #define __NET_PKT_CLS_H | |
4 | ||
5 | #include <linux/pkt_cls.h> | |
7aa0045d | 6 | #include <linux/workqueue.h> |
1da177e4 LT |
7 | #include <net/sch_generic.h> |
8 | #include <net/act_api.h> | |
a5148626 | 9 | #include <net/net_namespace.h> |
1da177e4 | 10 | |
cd11b164 | 11 | /* TC action not accessible from user space */ |
720f22fe | 12 | #define TC_ACT_CONSUMED (TC_ACT_VALUE_MAX + 1) |
cd11b164 | 13 | |
1da177e4 LT |
14 | /* Basic packet classifier frontend definitions. */ |
15 | ||
fd2c3ef7 | 16 | struct tcf_walker { |
1da177e4 LT |
17 | int stop; |
18 | int skip; | |
19 | int count; | |
6676d5e4 | 20 | bool nonempty; |
01683a14 | 21 | unsigned long cookie; |
8113c095 | 22 | int (*fn)(struct tcf_proto *, void *node, struct tcf_walker *); |
1da177e4 LT |
23 | }; |
24 | ||
5c15257f | 25 | int register_tcf_proto_ops(struct tcf_proto_ops *ops); |
bc5c8260 | 26 | void unregister_tcf_proto_ops(struct tcf_proto_ops *ops); |
1da177e4 | 27 | |
8c4083b3 | 28 | struct tcf_block_ext_info { |
32f8c409 | 29 | enum flow_block_binder_type binder_type; |
c7eb7d72 JP |
30 | tcf_chain_head_change_t *chain_head_change; |
31 | void *chain_head_change_priv; | |
48617387 | 32 | u32 block_index; |
8c4083b3 JP |
33 | }; |
34 | ||
3625750f PM |
35 | struct tcf_qevent { |
36 | struct tcf_block *block; | |
37 | struct tcf_block_ext_info info; | |
38 | struct tcf_proto __rcu *filter_chain; | |
39 | }; | |
40 | ||
acb67442 | 41 | struct tcf_block_cb; |
aaa908ff | 42 | bool tcf_queue_work(struct rcu_work *rwork, work_func_t func); |
acb67442 | 43 | |
8ae70032 | 44 | #ifdef CONFIG_NET_CLS |
1f3ed383 JP |
45 | struct tcf_chain *tcf_chain_get_by_act(struct tcf_block *block, |
46 | u32 chain_index); | |
1f3ed383 | 47 | void tcf_chain_put_by_act(struct tcf_chain *chain); |
bbf73830 VB |
48 | struct tcf_chain *tcf_get_next_chain(struct tcf_block *block, |
49 | struct tcf_chain *chain); | |
fe2923af | 50 | struct tcf_proto *tcf_get_next_proto(struct tcf_chain *chain, |
0fca55ed | 51 | struct tcf_proto *tp); |
f36fe1c4 | 52 | void tcf_block_netif_keep_dst(struct tcf_block *block); |
6529eaba | 53 | int tcf_block_get(struct tcf_block **p_block, |
8d1a77f9 AA |
54 | struct tcf_proto __rcu **p_filter_chain, struct Qdisc *q, |
55 | struct netlink_ext_ack *extack); | |
c7eb7d72 | 56 | int tcf_block_get_ext(struct tcf_block **p_block, struct Qdisc *q, |
8d1a77f9 AA |
57 | struct tcf_block_ext_info *ei, |
58 | struct netlink_ext_ack *extack); | |
6529eaba | 59 | void tcf_block_put(struct tcf_block *block); |
c7eb7d72 | 60 | void tcf_block_put_ext(struct tcf_block *block, struct Qdisc *q, |
8c4083b3 | 61 | struct tcf_block_ext_info *ei); |
80cd22c3 PB |
62 | int tcf_exts_init_ex(struct tcf_exts *exts, struct net *net, int action, |
63 | int police, struct tcf_proto *tp, u32 handle, bool used_action_miss); | |
44186460 | 64 | |
48617387 JP |
65 | static inline bool tcf_block_shared(struct tcf_block *block) |
66 | { | |
67 | return block->index; | |
68 | } | |
69 | ||
c1a970d0 VB |
70 | static inline bool tcf_block_non_null_shared(struct tcf_block *block) |
71 | { | |
72 | return block && block->index; | |
73 | } | |
74 | ||
44186460 JP |
75 | static inline struct Qdisc *tcf_block_q(struct tcf_block *block) |
76 | { | |
48617387 | 77 | WARN_ON(tcf_block_shared(block)); |
44186460 JP |
78 | return block->q; |
79 | } | |
80 | ||
3aa26055 DC |
81 | int tcf_classify(struct sk_buff *skb, |
82 | const struct tcf_block *block, | |
83 | const struct tcf_proto *tp, struct tcf_result *res, | |
84 | bool compat_mode); | |
87d83093 | 85 | |
fe0df81d ZS |
86 | static inline bool tc_cls_stats_dump(struct tcf_proto *tp, |
87 | struct tcf_walker *arg, | |
88 | void *filter) | |
89 | { | |
90 | if (arg->count >= arg->skip && arg->fn(tp, filter, arg) < 0) { | |
91 | arg->stop = 1; | |
92 | return false; | |
93 | } | |
94 | ||
95 | arg->count++; | |
96 | return true; | |
97 | } | |
98 | ||
8ae70032 | 99 | #else |
88c44a52 PJV |
100 | static inline bool tcf_block_shared(struct tcf_block *block) |
101 | { | |
102 | return false; | |
103 | } | |
104 | ||
c1a970d0 VB |
105 | static inline bool tcf_block_non_null_shared(struct tcf_block *block) |
106 | { | |
107 | return false; | |
108 | } | |
109 | ||
6529eaba JP |
110 | static inline |
111 | int tcf_block_get(struct tcf_block **p_block, | |
3c149091 SM |
112 | struct tcf_proto __rcu **p_filter_chain, struct Qdisc *q, |
113 | struct netlink_ext_ack *extack) | |
6529eaba JP |
114 | { |
115 | return 0; | |
116 | } | |
117 | ||
8c4083b3 | 118 | static inline |
c7eb7d72 | 119 | int tcf_block_get_ext(struct tcf_block **p_block, struct Qdisc *q, |
33c30a8b QM |
120 | struct tcf_block_ext_info *ei, |
121 | struct netlink_ext_ack *extack) | |
8c4083b3 JP |
122 | { |
123 | return 0; | |
124 | } | |
125 | ||
6529eaba | 126 | static inline void tcf_block_put(struct tcf_block *block) |
8ae70032 JP |
127 | { |
128 | } | |
87d83093 | 129 | |
8c4083b3 | 130 | static inline |
c7eb7d72 | 131 | void tcf_block_put_ext(struct tcf_block *block, struct Qdisc *q, |
8c4083b3 JP |
132 | struct tcf_block_ext_info *ei) |
133 | { | |
134 | } | |
135 | ||
44186460 JP |
136 | static inline struct Qdisc *tcf_block_q(struct tcf_block *block) |
137 | { | |
138 | return NULL; | |
139 | } | |
140 | ||
3aa26055 DC |
141 | static inline int tcf_classify(struct sk_buff *skb, |
142 | const struct tcf_block *block, | |
143 | const struct tcf_proto *tp, | |
87d83093 JP |
144 | struct tcf_result *res, bool compat_mode) |
145 | { | |
146 | return TC_ACT_UNSPEC; | |
147 | } | |
9410c940 | 148 | |
8ae70032 | 149 | #endif |
cf1facda | 150 | |
1da177e4 LT |
151 | static inline unsigned long |
152 | __cls_set_class(unsigned long *clp, unsigned long cl) | |
153 | { | |
a0efb80c | 154 | return xchg(clp, cl); |
1da177e4 LT |
155 | } |
156 | ||
2e24cd75 CW |
157 | static inline void |
158 | __tcf_bind_filter(struct Qdisc *q, struct tcf_result *r, unsigned long base) | |
1da177e4 | 159 | { |
2e24cd75 | 160 | unsigned long cl; |
34e3759c | 161 | |
2e24cd75 CW |
162 | cl = q->ops->cl_ops->bind_tcf(q, base, r->classid); |
163 | cl = __cls_set_class(&r->class, cl); | |
164 | if (cl) | |
165 | q->ops->cl_ops->unbind_tcf(q, cl); | |
1da177e4 LT |
166 | } |
167 | ||
168 | static inline void | |
169 | tcf_bind_filter(struct tcf_proto *tp, struct tcf_result *r, unsigned long base) | |
170 | { | |
34e3759c | 171 | struct Qdisc *q = tp->chain->block->q; |
1da177e4 | 172 | |
34e3759c JP |
173 | /* Check q as it is not set for shared blocks. In that case, |
174 | * setting class is not supported. | |
175 | */ | |
176 | if (!q) | |
177 | return; | |
2e24cd75 CW |
178 | sch_tree_lock(q); |
179 | __tcf_bind_filter(q, r, base); | |
180 | sch_tree_unlock(q); | |
181 | } | |
182 | ||
183 | static inline void | |
184 | __tcf_unbind_filter(struct Qdisc *q, struct tcf_result *r) | |
185 | { | |
186 | unsigned long cl; | |
187 | ||
188 | if ((cl = __cls_set_class(&r->class, 0)) != 0) | |
34e3759c | 189 | q->ops->cl_ops->unbind_tcf(q, cl); |
1da177e4 LT |
190 | } |
191 | ||
192 | static inline void | |
193 | tcf_unbind_filter(struct tcf_proto *tp, struct tcf_result *r) | |
194 | { | |
34e3759c | 195 | struct Qdisc *q = tp->chain->block->q; |
1da177e4 | 196 | |
34e3759c JP |
197 | if (!q) |
198 | return; | |
2e24cd75 | 199 | __tcf_unbind_filter(q, r); |
1da177e4 LT |
200 | } |
201 | ||
402963e3 ZS |
202 | static inline void tc_cls_bind_class(u32 classid, unsigned long cl, |
203 | void *q, struct tcf_result *res, | |
204 | unsigned long base) | |
205 | { | |
206 | if (res->classid == classid) { | |
207 | if (cl) | |
208 | __tcf_bind_filter(q, res, base); | |
209 | else | |
210 | __tcf_unbind_filter(q, res); | |
211 | } | |
212 | } | |
213 | ||
fd2c3ef7 | 214 | struct tcf_exts { |
1da177e4 | 215 | #ifdef CONFIG_NET_CLS_ACT |
33be6271 | 216 | __u32 type; /* for backward compat(TCA_OLD_COMPAT) */ |
22dc13c8 WC |
217 | int nr_actions; |
218 | struct tc_action **actions; | |
dbdcda63 ED |
219 | struct net *net; |
220 | netns_tracker ns_tracker; | |
80cd22c3 | 221 | struct tcf_exts_miss_cookie_node *miss_cookie_node; |
1da177e4 | 222 | #endif |
5da57f42 WC |
223 | /* Map to export classifier specific extension TLV types to the |
224 | * generic extensions API. Unsupported extensions must be set to 0. | |
225 | */ | |
1da177e4 LT |
226 | int action; |
227 | int police; | |
228 | }; | |
229 | ||
14215108 CW |
230 | static inline int tcf_exts_init(struct tcf_exts *exts, struct net *net, |
231 | int action, int police) | |
33be6271 | 232 | { |
80cd22c3 PB |
233 | #ifdef CONFIG_NET_CLS |
234 | return tcf_exts_init_ex(exts, net, action, police, NULL, 0, false); | |
235 | #else | |
236 | return -EOPNOTSUPP; | |
33be6271 WC |
237 | #endif |
238 | } | |
239 | ||
e4b95c41 CW |
240 | /* Return false if the netns is being destroyed in cleanup_net(). Callers |
241 | * need to do cleanup synchronously in this case, otherwise may race with | |
242 | * tc_action_net_exit(). Return true for other cases. | |
243 | */ | |
244 | static inline bool tcf_exts_get_net(struct tcf_exts *exts) | |
245 | { | |
246 | #ifdef CONFIG_NET_CLS_ACT | |
247 | exts->net = maybe_get_net(exts->net); | |
dbdcda63 ED |
248 | if (exts->net) |
249 | netns_tracker_alloc(exts->net, &exts->ns_tracker, GFP_KERNEL); | |
e4b95c41 CW |
250 | return exts->net != NULL; |
251 | #else | |
252 | return true; | |
253 | #endif | |
254 | } | |
255 | ||
256 | static inline void tcf_exts_put_net(struct tcf_exts *exts) | |
257 | { | |
258 | #ifdef CONFIG_NET_CLS_ACT | |
259 | if (exts->net) | |
dbdcda63 | 260 | put_net_track(exts->net, &exts->ns_tracker); |
e4b95c41 CW |
261 | #endif |
262 | } | |
263 | ||
22dc13c8 | 264 | #ifdef CONFIG_NET_CLS_ACT |
244cd96a CW |
265 | #define tcf_exts_for_each_action(i, a, exts) \ |
266 | for (i = 0; i < TCA_ACT_MAX_PRIO && ((a) = (exts)->actions[i]); i++) | |
267 | #else | |
268 | #define tcf_exts_for_each_action(i, a, exts) \ | |
191672ca | 269 | for (; 0; (void)(i), (void)(a), (void)(exts)) |
22dc13c8 | 270 | #endif |
22dc13c8 | 271 | |
8cbfe939 BZ |
272 | #define tcf_act_for_each_action(i, a, actions) \ |
273 | for (i = 0; i < TCA_ACT_MAX_PRIO && ((a) = actions[i]); i++) | |
274 | ||
5246c896 OS |
275 | static inline bool tc_act_in_hw(struct tc_action *act) |
276 | { | |
277 | return !!act->in_hw_count; | |
278 | } | |
279 | ||
d897a638 | 280 | static inline void |
bcd64368 | 281 | tcf_exts_hw_stats_update(const struct tcf_exts *exts, |
5246c896 OS |
282 | struct flow_stats *stats, |
283 | bool use_act_stats) | |
d897a638 JK |
284 | { |
285 | #ifdef CONFIG_NET_CLS_ACT | |
286 | int i; | |
287 | ||
d897a638 JK |
288 | for (i = 0; i < exts->nr_actions; i++) { |
289 | struct tc_action *a = exts->actions[i]; | |
290 | ||
5246c896 OS |
291 | if (use_act_stats || tc_act_in_hw(a)) { |
292 | if (!tcf_action_update_hw_stats(a)) | |
293 | continue; | |
c7a66f8d | 294 | } |
5246c896 OS |
295 | |
296 | preempt_disable(); | |
297 | tcf_action_stats_update(a, stats->bytes, stats->pkts, stats->drops, | |
298 | stats->lastused, true); | |
299 | preempt_enable(); | |
300 | ||
301 | a->used_hw_stats = stats->used_hw_stats; | |
302 | a->used_hw_stats_valid = stats->used_hw_stats_valid; | |
c7a66f8d | 303 | } |
d897a638 JK |
304 | #endif |
305 | } | |
306 | ||
3bcc0cec JP |
307 | /** |
308 | * tcf_exts_has_actions - check if at least one action is present | |
309 | * @exts: tc filter extensions handle | |
310 | * | |
311 | * Returns true if at least one action is present. | |
312 | */ | |
313 | static inline bool tcf_exts_has_actions(struct tcf_exts *exts) | |
314 | { | |
2734437e | 315 | #ifdef CONFIG_NET_CLS_ACT |
3bcc0cec JP |
316 | return exts->nr_actions; |
317 | #else | |
318 | return false; | |
319 | #endif | |
320 | } | |
2734437e | 321 | |
af69afc5 JP |
322 | /** |
323 | * tcf_exts_exec - execute tc filter extensions | |
324 | * @skb: socket buffer | |
325 | * @exts: tc filter extensions handle | |
326 | * @res: desired result | |
327 | * | |
af089e70 | 328 | * Executes all configured extensions. Returns TC_ACT_OK on a normal execution, |
af69afc5 JP |
329 | * a negative number if the filter must be considered unmatched or |
330 | * a positive action code (TC_ACT_*) which must be returned to the | |
331 | * underlying layer. | |
332 | */ | |
333 | static inline int | |
334 | tcf_exts_exec(struct sk_buff *skb, struct tcf_exts *exts, | |
335 | struct tcf_result *res) | |
336 | { | |
337 | #ifdef CONFIG_NET_CLS_ACT | |
ec1a9cca | 338 | return tcf_action_exec(skb, exts->actions, exts->nr_actions, res); |
af69afc5 | 339 | #endif |
af089e70 | 340 | return TC_ACT_OK; |
af69afc5 JP |
341 | } |
342 | ||
80cd22c3 PB |
343 | static inline int |
344 | tcf_exts_exec_ex(struct sk_buff *skb, struct tcf_exts *exts, int act_index, | |
345 | struct tcf_result *res) | |
346 | { | |
347 | #ifdef CONFIG_NET_CLS_ACT | |
348 | return tcf_action_exec(skb, exts->actions + act_index, | |
349 | exts->nr_actions - act_index, res); | |
350 | #else | |
351 | return TC_ACT_OK; | |
352 | #endif | |
353 | } | |
354 | ||
5c15257f JP |
355 | int tcf_exts_validate(struct net *net, struct tcf_proto *tp, |
356 | struct nlattr **tb, struct nlattr *rate_tlv, | |
695176bf | 357 | struct tcf_exts *exts, u32 flags, |
50a56190 | 358 | struct netlink_ext_ack *extack); |
c86e0209 BZ |
359 | int tcf_exts_validate_ex(struct net *net, struct tcf_proto *tp, struct nlattr **tb, |
360 | struct nlattr *rate_tlv, struct tcf_exts *exts, | |
361 | u32 flags, u32 fl_flags, struct netlink_ext_ack *extack); | |
18d0264f | 362 | void tcf_exts_destroy(struct tcf_exts *exts); |
9b0d4446 | 363 | void tcf_exts_change(struct tcf_exts *dst, struct tcf_exts *src); |
5da57f42 | 364 | int tcf_exts_dump(struct sk_buff *skb, struct tcf_exts *exts); |
ca44b738 | 365 | int tcf_exts_terse_dump(struct sk_buff *skb, struct tcf_exts *exts); |
5da57f42 | 366 | int tcf_exts_dump_stats(struct sk_buff *skb, struct tcf_exts *exts); |
1da177e4 LT |
367 | |
368 | /** | |
369 | * struct tcf_pkt_info - packet information | |
0161d151 BX |
370 | * |
371 | * @ptr: start of the pkt data | |
372 | * @nexthdr: offset of the next header | |
1da177e4 | 373 | */ |
fd2c3ef7 | 374 | struct tcf_pkt_info { |
1da177e4 LT |
375 | unsigned char * ptr; |
376 | int nexthdr; | |
377 | }; | |
378 | ||
379 | #ifdef CONFIG_NET_EMATCH | |
380 | ||
381 | struct tcf_ematch_ops; | |
382 | ||
383 | /** | |
384 | * struct tcf_ematch - extended match (ematch) | |
385 | * | |
386 | * @matchid: identifier to allow userspace to reidentify a match | |
387 | * @flags: flags specifying attributes and the relation to other matches | |
388 | * @ops: the operations lookup table of the corresponding ematch module | |
389 | * @datalen: length of the ematch specific configuration data | |
390 | * @data: ematch specific data | |
0161d151 | 391 | * @net: the network namespace |
1da177e4 | 392 | */ |
fd2c3ef7 | 393 | struct tcf_ematch { |
1da177e4 LT |
394 | struct tcf_ematch_ops * ops; |
395 | unsigned long data; | |
396 | unsigned int datalen; | |
397 | u16 matchid; | |
398 | u16 flags; | |
82a470f1 | 399 | struct net *net; |
1da177e4 LT |
400 | }; |
401 | ||
402 | static inline int tcf_em_is_container(struct tcf_ematch *em) | |
403 | { | |
404 | return !em->ops; | |
405 | } | |
406 | ||
407 | static inline int tcf_em_is_simple(struct tcf_ematch *em) | |
408 | { | |
409 | return em->flags & TCF_EM_SIMPLE; | |
410 | } | |
411 | ||
412 | static inline int tcf_em_is_inverted(struct tcf_ematch *em) | |
413 | { | |
414 | return em->flags & TCF_EM_INVERT; | |
415 | } | |
416 | ||
417 | static inline int tcf_em_last_match(struct tcf_ematch *em) | |
418 | { | |
419 | return (em->flags & TCF_EM_REL_MASK) == TCF_EM_REL_END; | |
420 | } | |
421 | ||
422 | static inline int tcf_em_early_end(struct tcf_ematch *em, int result) | |
423 | { | |
424 | if (tcf_em_last_match(em)) | |
425 | return 1; | |
426 | ||
427 | if (result == 0 && em->flags & TCF_EM_REL_AND) | |
428 | return 1; | |
429 | ||
430 | if (result != 0 && em->flags & TCF_EM_REL_OR) | |
431 | return 1; | |
432 | ||
433 | return 0; | |
434 | } | |
435 | ||
436 | /** | |
437 | * struct tcf_ematch_tree - ematch tree handle | |
438 | * | |
439 | * @hdr: ematch tree header supplied by userspace | |
440 | * @matches: array of ematches | |
441 | */ | |
fd2c3ef7 | 442 | struct tcf_ematch_tree { |
1da177e4 LT |
443 | struct tcf_ematch_tree_hdr hdr; |
444 | struct tcf_ematch * matches; | |
445 | ||
446 | }; | |
447 | ||
448 | /** | |
449 | * struct tcf_ematch_ops - ematch module operations | |
450 | * | |
451 | * @kind: identifier (kind) of this ematch module | |
452 | * @datalen: length of expected configuration data (optional) | |
453 | * @change: called during validation (optional) | |
454 | * @match: called during ematch tree evaluation, must return 1/0 | |
455 | * @destroy: called during destroyage (optional) | |
456 | * @dump: called during dumping process (optional) | |
457 | * @owner: owner, must be set to THIS_MODULE | |
458 | * @link: link to previous/next ematch module (internal use) | |
459 | */ | |
fd2c3ef7 | 460 | struct tcf_ematch_ops { |
1da177e4 LT |
461 | int kind; |
462 | int datalen; | |
82a470f1 | 463 | int (*change)(struct net *net, void *, |
1da177e4 LT |
464 | int, struct tcf_ematch *); |
465 | int (*match)(struct sk_buff *, struct tcf_ematch *, | |
466 | struct tcf_pkt_info *); | |
82a470f1 | 467 | void (*destroy)(struct tcf_ematch *); |
1da177e4 LT |
468 | int (*dump)(struct sk_buff *, struct tcf_ematch *); |
469 | struct module *owner; | |
470 | struct list_head link; | |
471 | }; | |
472 | ||
5c15257f JP |
473 | int tcf_em_register(struct tcf_ematch_ops *); |
474 | void tcf_em_unregister(struct tcf_ematch_ops *); | |
475 | int tcf_em_tree_validate(struct tcf_proto *, struct nlattr *, | |
476 | struct tcf_ematch_tree *); | |
82a470f1 | 477 | void tcf_em_tree_destroy(struct tcf_ematch_tree *); |
5c15257f JP |
478 | int tcf_em_tree_dump(struct sk_buff *, struct tcf_ematch_tree *, int); |
479 | int __tcf_em_tree_match(struct sk_buff *, struct tcf_ematch_tree *, | |
480 | struct tcf_pkt_info *); | |
1da177e4 | 481 | |
1da177e4 LT |
482 | /** |
483 | * tcf_em_tree_match - evaulate an ematch tree | |
484 | * | |
485 | * @skb: socket buffer of the packet in question | |
486 | * @tree: ematch tree to be used for evaluation | |
487 | * @info: packet information examined by classifier | |
488 | * | |
489 | * This function matches @skb against the ematch tree in @tree by going | |
490 | * through all ematches respecting their logic relations returning | |
491 | * as soon as the result is obvious. | |
492 | * | |
493 | * Returns 1 if the ematch tree as-one matches, no ematches are configured | |
494 | * or ematch is not enabled in the kernel, otherwise 0 is returned. | |
495 | */ | |
496 | static inline int tcf_em_tree_match(struct sk_buff *skb, | |
497 | struct tcf_ematch_tree *tree, | |
498 | struct tcf_pkt_info *info) | |
499 | { | |
500 | if (tree->hdr.nmatches) | |
501 | return __tcf_em_tree_match(skb, tree, info); | |
502 | else | |
503 | return 1; | |
504 | } | |
505 | ||
db3d99c0 PM |
506 | #define MODULE_ALIAS_TCF_EMATCH(kind) MODULE_ALIAS("ematch-kind-" __stringify(kind)) |
507 | ||
1da177e4 LT |
508 | #else /* CONFIG_NET_EMATCH */ |
509 | ||
fd2c3ef7 | 510 | struct tcf_ematch_tree { |
1da177e4 LT |
511 | }; |
512 | ||
513 | #define tcf_em_tree_validate(tp, tb, t) ((void)(t), 0) | |
82a470f1 | 514 | #define tcf_em_tree_destroy(t) do { (void)(t); } while(0) |
1da177e4 | 515 | #define tcf_em_tree_dump(skb, t, tlv) (0) |
1da177e4 LT |
516 | #define tcf_em_tree_match(skb, t, info) ((void)(info), 1) |
517 | ||
518 | #endif /* CONFIG_NET_EMATCH */ | |
519 | ||
520 | static inline unsigned char * tcf_get_base_ptr(struct sk_buff *skb, int layer) | |
521 | { | |
522 | switch (layer) { | |
523 | case TCF_LAYER_LINK: | |
d3303a65 | 524 | return skb_mac_header(skb); |
1da177e4 | 525 | case TCF_LAYER_NETWORK: |
d56f90a7 | 526 | return skb_network_header(skb); |
1da177e4 | 527 | case TCF_LAYER_TRANSPORT: |
9c70220b | 528 | return skb_transport_header(skb); |
1da177e4 LT |
529 | } |
530 | ||
531 | return NULL; | |
532 | } | |
533 | ||
eddc9ec5 ACM |
534 | static inline int tcf_valid_offset(const struct sk_buff *skb, |
535 | const unsigned char *ptr, const int len) | |
1da177e4 | 536 | { |
da521b2c DM |
537 | return likely((ptr + len) <= skb_tail_pointer(skb) && |
538 | ptr >= skb->head && | |
539 | (ptr <= (ptr + len))); | |
1da177e4 LT |
540 | } |
541 | ||
1da177e4 | 542 | static inline int |
1057c55f AA |
543 | tcf_change_indev(struct net *net, struct nlattr *indev_tlv, |
544 | struct netlink_ext_ack *extack) | |
1da177e4 | 545 | { |
2519a602 WC |
546 | char indev[IFNAMSIZ]; |
547 | struct net_device *dev; | |
548 | ||
872f6903 | 549 | if (nla_strscpy(indev, indev_tlv, IFNAMSIZ) < 0) { |
e4a58ef3 GN |
550 | NL_SET_ERR_MSG_ATTR(extack, indev_tlv, |
551 | "Interface name too long"); | |
1da177e4 | 552 | return -EINVAL; |
1057c55f | 553 | } |
2519a602 | 554 | dev = __dev_get_by_name(net, indev); |
e4a58ef3 GN |
555 | if (!dev) { |
556 | NL_SET_ERR_MSG_ATTR(extack, indev_tlv, | |
557 | "Network device not found"); | |
2519a602 | 558 | return -ENODEV; |
e4a58ef3 | 559 | } |
2519a602 | 560 | return dev->ifindex; |
1da177e4 LT |
561 | } |
562 | ||
2519a602 WC |
563 | static inline bool |
564 | tcf_match_indev(struct sk_buff *skb, int ifindex) | |
1da177e4 | 565 | { |
2519a602 WC |
566 | if (!ifindex) |
567 | return true; | |
568 | if (!skb->skb_iif) | |
569 | return false; | |
570 | return ifindex == skb->skb_iif; | |
1da177e4 | 571 | } |
1da177e4 | 572 | |
9c1c0e12 | 573 | int tc_setup_offload_action(struct flow_action *flow_action, |
c2ccf84e IS |
574 | const struct tcf_exts *exts, |
575 | struct netlink_ext_ack *extack); | |
9c1c0e12 | 576 | void tc_cleanup_offload_action(struct flow_action *flow_action); |
8cbfe939 | 577 | int tc_setup_action(struct flow_action *flow_action, |
c2ccf84e | 578 | struct tc_action *actions[], |
80cd22c3 | 579 | u32 miss_cookie_base, |
c2ccf84e | 580 | struct netlink_ext_ack *extack); |
5a6ff4b1 | 581 | |
aeb3fecd | 582 | int tc_setup_cb_call(struct tcf_block *block, enum tc_setup_type type, |
40119211 VB |
583 | void *type_data, bool err_stop, bool rtnl_held); |
584 | int tc_setup_cb_add(struct tcf_block *block, struct tcf_proto *tp, | |
585 | enum tc_setup_type type, void *type_data, bool err_stop, | |
586 | u32 *flags, unsigned int *in_hw_count, bool rtnl_held); | |
587 | int tc_setup_cb_replace(struct tcf_block *block, struct tcf_proto *tp, | |
588 | enum tc_setup_type type, void *type_data, bool err_stop, | |
589 | u32 *old_flags, unsigned int *old_in_hw_count, | |
590 | u32 *new_flags, unsigned int *new_in_hw_count, | |
591 | bool rtnl_held); | |
592 | int tc_setup_cb_destroy(struct tcf_block *block, struct tcf_proto *tp, | |
593 | enum tc_setup_type type, void *type_data, bool err_stop, | |
594 | u32 *flags, unsigned int *in_hw_count, bool rtnl_held); | |
595 | int tc_setup_cb_reoffload(struct tcf_block *block, struct tcf_proto *tp, | |
596 | bool add, flow_setup_cb_t *cb, | |
597 | enum tc_setup_type type, void *type_data, | |
598 | void *cb_priv, u32 *flags, unsigned int *in_hw_count); | |
e3ab786b | 599 | unsigned int tcf_exts_num_actions(struct tcf_exts *exts); |
717503b9 | 600 | |
3625750f PM |
601 | #ifdef CONFIG_NET_CLS_ACT |
602 | int tcf_qevent_init(struct tcf_qevent *qe, struct Qdisc *sch, | |
603 | enum flow_block_binder_type binder_type, | |
604 | struct nlattr *block_index_attr, | |
605 | struct netlink_ext_ack *extack); | |
606 | void tcf_qevent_destroy(struct tcf_qevent *qe, struct Qdisc *sch); | |
607 | int tcf_qevent_validate_change(struct tcf_qevent *qe, struct nlattr *block_index_attr, | |
608 | struct netlink_ext_ack *extack); | |
609 | struct sk_buff *tcf_qevent_handle(struct tcf_qevent *qe, struct Qdisc *sch, struct sk_buff *skb, | |
55f656cd | 610 | struct sk_buff **to_free, int *ret); |
3625750f PM |
611 | int tcf_qevent_dump(struct sk_buff *skb, int attr_name, struct tcf_qevent *qe); |
612 | #else | |
613 | static inline int tcf_qevent_init(struct tcf_qevent *qe, struct Qdisc *sch, | |
614 | enum flow_block_binder_type binder_type, | |
615 | struct nlattr *block_index_attr, | |
616 | struct netlink_ext_ack *extack) | |
617 | { | |
618 | return 0; | |
619 | } | |
620 | ||
621 | static inline void tcf_qevent_destroy(struct tcf_qevent *qe, struct Qdisc *sch) | |
622 | { | |
623 | } | |
624 | ||
625 | static inline int tcf_qevent_validate_change(struct tcf_qevent *qe, struct nlattr *block_index_attr, | |
626 | struct netlink_ext_ack *extack) | |
627 | { | |
628 | return 0; | |
629 | } | |
630 | ||
631 | static inline struct sk_buff * | |
632 | tcf_qevent_handle(struct tcf_qevent *qe, struct Qdisc *sch, struct sk_buff *skb, | |
55f656cd | 633 | struct sk_buff **to_free, int *ret) |
3625750f PM |
634 | { |
635 | return skb; | |
636 | } | |
637 | ||
638 | static inline int tcf_qevent_dump(struct sk_buff *skb, int attr_name, struct tcf_qevent *qe) | |
639 | { | |
640 | return 0; | |
641 | } | |
642 | #endif | |
643 | ||
a1b7c5fd JF |
644 | struct tc_cls_u32_knode { |
645 | struct tcf_exts *exts; | |
068ceb35 | 646 | struct tcf_result *res; |
e014860e | 647 | struct tc_u32_sel *sel; |
a1b7c5fd JF |
648 | u32 handle; |
649 | u32 val; | |
650 | u32 mask; | |
651 | u32 link_handle; | |
e014860e | 652 | u8 fshift; |
a1b7c5fd JF |
653 | }; |
654 | ||
655 | struct tc_cls_u32_hnode { | |
656 | u32 handle; | |
657 | u32 prio; | |
658 | unsigned int divisor; | |
659 | }; | |
660 | ||
661 | enum tc_clsu32_command { | |
662 | TC_CLSU32_NEW_KNODE, | |
663 | TC_CLSU32_REPLACE_KNODE, | |
664 | TC_CLSU32_DELETE_KNODE, | |
665 | TC_CLSU32_NEW_HNODE, | |
666 | TC_CLSU32_REPLACE_HNODE, | |
667 | TC_CLSU32_DELETE_HNODE, | |
668 | }; | |
669 | ||
670 | struct tc_cls_u32_offload { | |
f9e30088 | 671 | struct flow_cls_common_offload common; |
a1b7c5fd JF |
672 | /* knode values */ |
673 | enum tc_clsu32_command command; | |
674 | union { | |
675 | struct tc_cls_u32_knode knode; | |
676 | struct tc_cls_u32_hnode hnode; | |
677 | }; | |
678 | }; | |
679 | ||
7b06e8ae | 680 | static inline bool tc_can_offload(const struct net_device *dev) |
6843e7a2 | 681 | { |
70b5aee4 | 682 | return dev->features & NETIF_F_HW_TC; |
6843e7a2 JF |
683 | } |
684 | ||
f9eda14f QM |
685 | static inline bool tc_can_offload_extack(const struct net_device *dev, |
686 | struct netlink_ext_ack *extack) | |
687 | { | |
688 | bool can = tc_can_offload(dev); | |
689 | ||
690 | if (!can) | |
691 | NL_SET_ERR_MSG(extack, "TC offload is disabled on net device"); | |
692 | ||
693 | return can; | |
694 | } | |
695 | ||
878db9f0 JK |
696 | static inline bool |
697 | tc_cls_can_offload_and_chain0(const struct net_device *dev, | |
f9e30088 | 698 | struct flow_cls_common_offload *common) |
878db9f0 JK |
699 | { |
700 | if (!tc_can_offload_extack(dev, common->extack)) | |
701 | return false; | |
702 | if (common->chain_index) { | |
703 | NL_SET_ERR_MSG(common->extack, | |
704 | "Driver supports only offload of chain 0"); | |
705 | return false; | |
706 | } | |
707 | return true; | |
708 | } | |
709 | ||
55330f05 HHZ |
710 | static inline bool tc_skip_hw(u32 flags) |
711 | { | |
712 | return (flags & TCA_CLS_FLAGS_SKIP_HW) ? true : false; | |
713 | } | |
714 | ||
d34e3e18 SS |
715 | static inline bool tc_skip_sw(u32 flags) |
716 | { | |
717 | return (flags & TCA_CLS_FLAGS_SKIP_SW) ? true : false; | |
718 | } | |
719 | ||
720 | /* SKIP_HW and SKIP_SW are mutually exclusive flags. */ | |
721 | static inline bool tc_flags_valid(u32 flags) | |
722 | { | |
81c7288b MRL |
723 | if (flags & ~(TCA_CLS_FLAGS_SKIP_HW | TCA_CLS_FLAGS_SKIP_SW | |
724 | TCA_CLS_FLAGS_VERBOSE)) | |
d34e3e18 SS |
725 | return false; |
726 | ||
81c7288b | 727 | flags &= TCA_CLS_FLAGS_SKIP_HW | TCA_CLS_FLAGS_SKIP_SW; |
d34e3e18 SS |
728 | if (!(flags ^ (TCA_CLS_FLAGS_SKIP_HW | TCA_CLS_FLAGS_SKIP_SW))) |
729 | return false; | |
730 | ||
731 | return true; | |
732 | } | |
733 | ||
e696028a OG |
734 | static inline bool tc_in_hw(u32 flags) |
735 | { | |
736 | return (flags & TCA_CLS_FLAGS_IN_HW) ? true : false; | |
737 | } | |
738 | ||
34832e1c | 739 | static inline void |
f9e30088 | 740 | tc_cls_common_offload_init(struct flow_cls_common_offload *cls_common, |
34832e1c JK |
741 | const struct tcf_proto *tp, u32 flags, |
742 | struct netlink_ext_ack *extack) | |
743 | { | |
744 | cls_common->chain_index = tp->chain->index; | |
745 | cls_common->protocol = tp->protocol; | |
ef01adae | 746 | cls_common->prio = tp->prio >> 16; |
81c7288b | 747 | if (tc_skip_sw(flags) || flags & TCA_CLS_FLAGS_VERBOSE) |
34832e1c JK |
748 | cls_common->extack = extack; |
749 | } | |
750 | ||
9453d45e VB |
751 | #if IS_ENABLED(CONFIG_NET_TC_SKB_EXT) |
752 | static inline struct tc_skb_ext *tc_skb_ext_alloc(struct sk_buff *skb) | |
753 | { | |
754 | struct tc_skb_ext *tc_skb_ext = skb_ext_add(skb, TC_SKB_EXT); | |
755 | ||
756 | if (tc_skb_ext) | |
757 | memset(tc_skb_ext, 0, sizeof(*tc_skb_ext)); | |
758 | return tc_skb_ext; | |
759 | } | |
760 | #endif | |
761 | ||
b87f7936 YG |
762 | enum tc_matchall_command { |
763 | TC_CLSMATCHALL_REPLACE, | |
764 | TC_CLSMATCHALL_DESTROY, | |
b7fe4ab8 | 765 | TC_CLSMATCHALL_STATS, |
b87f7936 YG |
766 | }; |
767 | ||
768 | struct tc_cls_matchall_offload { | |
f9e30088 | 769 | struct flow_cls_common_offload common; |
b87f7936 | 770 | enum tc_matchall_command command; |
f00cbf19 | 771 | struct flow_rule *rule; |
b7fe4ab8 | 772 | struct flow_stats stats; |
5246c896 | 773 | bool use_act_stats; |
b87f7936 YG |
774 | unsigned long cookie; |
775 | }; | |
776 | ||
332ae8e2 | 777 | enum tc_clsbpf_command { |
102740bd | 778 | TC_CLSBPF_OFFLOAD, |
68d64063 | 779 | TC_CLSBPF_STATS, |
332ae8e2 JK |
780 | }; |
781 | ||
782 | struct tc_cls_bpf_offload { | |
f9e30088 | 783 | struct flow_cls_common_offload common; |
332ae8e2 JK |
784 | enum tc_clsbpf_command command; |
785 | struct tcf_exts *exts; | |
786 | struct bpf_prog *prog; | |
102740bd | 787 | struct bpf_prog *oldprog; |
332ae8e2 JK |
788 | const char *name; |
789 | bool exts_integrated; | |
790 | }; | |
791 | ||
1045ba77 JHS |
792 | /* This structure holds cookie structure that is passed from user |
793 | * to the kernel for actions and classifiers | |
794 | */ | |
795 | struct tc_cookie { | |
796 | u8 *data; | |
797 | u32 len; | |
eec94fdb | 798 | struct rcu_head rcu; |
1045ba77 | 799 | }; |
602f3baf | 800 | |
f34b4aac | 801 | struct tc_qopt_offload_stats { |
50dc9a85 | 802 | struct gnet_stats_basic_sync *bstats; |
f34b4aac NF |
803 | struct gnet_stats_queue *qstats; |
804 | }; | |
805 | ||
f971b132 JK |
806 | enum tc_mq_command { |
807 | TC_MQ_CREATE, | |
808 | TC_MQ_DESTROY, | |
47c669a4 | 809 | TC_MQ_STATS, |
d577a3d2 JK |
810 | TC_MQ_GRAFT, |
811 | }; | |
812 | ||
813 | struct tc_mq_opt_offload_graft_params { | |
814 | unsigned long queue; | |
815 | u32 child_handle; | |
f971b132 JK |
816 | }; |
817 | ||
818 | struct tc_mq_qopt_offload { | |
819 | enum tc_mq_command command; | |
820 | u32 handle; | |
d577a3d2 JK |
821 | union { |
822 | struct tc_qopt_offload_stats stats; | |
823 | struct tc_mq_opt_offload_graft_params graft_params; | |
824 | }; | |
f971b132 JK |
825 | }; |
826 | ||
d03b195b MM |
827 | enum tc_htb_command { |
828 | /* Root */ | |
829 | TC_HTB_CREATE, /* Initialize HTB offload. */ | |
830 | TC_HTB_DESTROY, /* Destroy HTB offload. */ | |
831 | ||
832 | /* Classes */ | |
833 | /* Allocate qid and create leaf. */ | |
834 | TC_HTB_LEAF_ALLOC_QUEUE, | |
835 | /* Convert leaf to inner, preserve and return qid, create new leaf. */ | |
836 | TC_HTB_LEAF_TO_INNER, | |
837 | /* Delete leaf, while siblings remain. */ | |
838 | TC_HTB_LEAF_DEL, | |
839 | /* Delete leaf, convert parent to leaf, preserving qid. */ | |
840 | TC_HTB_LEAF_DEL_LAST, | |
841 | /* TC_HTB_LEAF_DEL_LAST, but delete driver data on hardware errors. */ | |
842 | TC_HTB_LEAF_DEL_LAST_FORCE, | |
843 | /* Modify parameters of a node. */ | |
844 | TC_HTB_NODE_MODIFY, | |
845 | ||
846 | /* Class qdisc */ | |
847 | TC_HTB_LEAF_QUERY_QUEUE, /* Query qid by classid. */ | |
848 | }; | |
849 | ||
850 | struct tc_htb_qopt_offload { | |
851 | struct netlink_ext_ack *extack; | |
852 | enum tc_htb_command command; | |
d03b195b | 853 | u32 parent_classid; |
ca49bfd9 | 854 | u16 classid; |
d03b195b | 855 | u16 qid; |
9fe63d5f | 856 | u32 quantum; |
d03b195b MM |
857 | u64 rate; |
858 | u64 ceil; | |
12e7789a | 859 | u8 prio; |
d03b195b MM |
860 | }; |
861 | ||
862 | #define TC_HTB_CLASSID_ROOT U32_MAX | |
863 | ||
602f3baf NF |
864 | enum tc_red_command { |
865 | TC_RED_REPLACE, | |
866 | TC_RED_DESTROY, | |
867 | TC_RED_STATS, | |
868 | TC_RED_XSTATS, | |
bf2a752b | 869 | TC_RED_GRAFT, |
602f3baf NF |
870 | }; |
871 | ||
872 | struct tc_red_qopt_offload_params { | |
873 | u32 min; | |
874 | u32 max; | |
875 | u32 probability; | |
c0b7490b | 876 | u32 limit; |
602f3baf | 877 | bool is_ecn; |
190852a5 | 878 | bool is_harddrop; |
0a7fad23 | 879 | bool is_nodrop; |
416ef9b1 | 880 | struct gnet_stats_queue *qstats; |
602f3baf | 881 | }; |
602f3baf NF |
882 | |
883 | struct tc_red_qopt_offload { | |
884 | enum tc_red_command command; | |
885 | u32 handle; | |
886 | u32 parent; | |
887 | union { | |
888 | struct tc_red_qopt_offload_params set; | |
f34b4aac | 889 | struct tc_qopt_offload_stats stats; |
602f3baf | 890 | struct red_stats *xstats; |
bf2a752b | 891 | u32 child_handle; |
602f3baf NF |
892 | }; |
893 | }; | |
894 | ||
890d8d23 JK |
895 | enum tc_gred_command { |
896 | TC_GRED_REPLACE, | |
897 | TC_GRED_DESTROY, | |
e49efd52 | 898 | TC_GRED_STATS, |
890d8d23 JK |
899 | }; |
900 | ||
901 | struct tc_gred_vq_qopt_offload_params { | |
902 | bool present; | |
903 | u32 limit; | |
904 | u32 prio; | |
905 | u32 min; | |
906 | u32 max; | |
907 | bool is_ecn; | |
908 | bool is_harddrop; | |
909 | u32 probability; | |
910 | /* Only need backlog, see struct tc_prio_qopt_offload_params */ | |
911 | u32 *backlog; | |
912 | }; | |
913 | ||
914 | struct tc_gred_qopt_offload_params { | |
915 | bool grio_on; | |
916 | bool wred_on; | |
917 | unsigned int dp_cnt; | |
918 | unsigned int dp_def; | |
919 | struct gnet_stats_queue *qstats; | |
920 | struct tc_gred_vq_qopt_offload_params tab[MAX_DPs]; | |
921 | }; | |
922 | ||
e49efd52 | 923 | struct tc_gred_qopt_offload_stats { |
50dc9a85 | 924 | struct gnet_stats_basic_sync bstats[MAX_DPs]; |
e49efd52 JK |
925 | struct gnet_stats_queue qstats[MAX_DPs]; |
926 | struct red_stats *xstats[MAX_DPs]; | |
927 | }; | |
928 | ||
890d8d23 JK |
929 | struct tc_gred_qopt_offload { |
930 | enum tc_gred_command command; | |
931 | u32 handle; | |
932 | u32 parent; | |
933 | union { | |
934 | struct tc_gred_qopt_offload_params set; | |
e49efd52 | 935 | struct tc_gred_qopt_offload_stats stats; |
890d8d23 JK |
936 | }; |
937 | }; | |
938 | ||
7fdb61b4 NF |
939 | enum tc_prio_command { |
940 | TC_PRIO_REPLACE, | |
941 | TC_PRIO_DESTROY, | |
942 | TC_PRIO_STATS, | |
b9c7a7ac | 943 | TC_PRIO_GRAFT, |
7fdb61b4 NF |
944 | }; |
945 | ||
946 | struct tc_prio_qopt_offload_params { | |
947 | int bands; | |
948 | u8 priomap[TC_PRIO_MAX + 1]; | |
9586a992 PM |
949 | /* At the point of un-offloading the Qdisc, the reported backlog and |
950 | * qlen need to be reduced by the portion that is in HW. | |
7fdb61b4 NF |
951 | */ |
952 | struct gnet_stats_queue *qstats; | |
953 | }; | |
954 | ||
b9c7a7ac NF |
955 | struct tc_prio_qopt_offload_graft_params { |
956 | u8 band; | |
957 | u32 child_handle; | |
958 | }; | |
959 | ||
7fdb61b4 NF |
960 | struct tc_prio_qopt_offload { |
961 | enum tc_prio_command command; | |
962 | u32 handle; | |
963 | u32 parent; | |
964 | union { | |
965 | struct tc_prio_qopt_offload_params replace_params; | |
966 | struct tc_qopt_offload_stats stats; | |
b9c7a7ac | 967 | struct tc_prio_qopt_offload_graft_params graft_params; |
7fdb61b4 NF |
968 | }; |
969 | }; | |
b9c7a7ac | 970 | |
98b0e5f6 JK |
971 | enum tc_root_command { |
972 | TC_ROOT_GRAFT, | |
973 | }; | |
974 | ||
975 | struct tc_root_qopt_offload { | |
976 | enum tc_root_command command; | |
977 | u32 handle; | |
978 | bool ingress; | |
979 | }; | |
980 | ||
d35eb52b PM |
981 | enum tc_ets_command { |
982 | TC_ETS_REPLACE, | |
983 | TC_ETS_DESTROY, | |
984 | TC_ETS_STATS, | |
985 | TC_ETS_GRAFT, | |
986 | }; | |
987 | ||
988 | struct tc_ets_qopt_offload_replace_params { | |
989 | unsigned int bands; | |
990 | u8 priomap[TC_PRIO_MAX + 1]; | |
991 | unsigned int quanta[TCQ_ETS_MAX_BANDS]; /* 0 for strict bands. */ | |
992 | unsigned int weights[TCQ_ETS_MAX_BANDS]; | |
993 | struct gnet_stats_queue *qstats; | |
994 | }; | |
995 | ||
996 | struct tc_ets_qopt_offload_graft_params { | |
997 | u8 band; | |
998 | u32 child_handle; | |
999 | }; | |
1000 | ||
1001 | struct tc_ets_qopt_offload { | |
1002 | enum tc_ets_command command; | |
1003 | u32 handle; | |
1004 | u32 parent; | |
1005 | union { | |
1006 | struct tc_ets_qopt_offload_replace_params replace_params; | |
1007 | struct tc_qopt_offload_stats stats; | |
1008 | struct tc_ets_qopt_offload_graft_params graft_params; | |
1009 | }; | |
1010 | }; | |
1011 | ||
ef6aadcc PM |
1012 | enum tc_tbf_command { |
1013 | TC_TBF_REPLACE, | |
1014 | TC_TBF_DESTROY, | |
1015 | TC_TBF_STATS, | |
6b3efbfa | 1016 | TC_TBF_GRAFT, |
ef6aadcc PM |
1017 | }; |
1018 | ||
1019 | struct tc_tbf_qopt_offload_replace_params { | |
1020 | struct psched_ratecfg rate; | |
1021 | u32 max_size; | |
1022 | struct gnet_stats_queue *qstats; | |
1023 | }; | |
1024 | ||
1025 | struct tc_tbf_qopt_offload { | |
1026 | enum tc_tbf_command command; | |
1027 | u32 handle; | |
1028 | u32 parent; | |
1029 | union { | |
1030 | struct tc_tbf_qopt_offload_replace_params replace_params; | |
1031 | struct tc_qopt_offload_stats stats; | |
6b3efbfa | 1032 | u32 child_handle; |
ef6aadcc PM |
1033 | }; |
1034 | }; | |
1035 | ||
aaca9408 PM |
1036 | enum tc_fifo_command { |
1037 | TC_FIFO_REPLACE, | |
1038 | TC_FIFO_DESTROY, | |
1039 | TC_FIFO_STATS, | |
1040 | }; | |
1041 | ||
1042 | struct tc_fifo_qopt_offload { | |
1043 | enum tc_fifo_command command; | |
1044 | u32 handle; | |
1045 | u32 parent; | |
1046 | union { | |
1047 | struct tc_qopt_offload_stats stats; | |
1048 | }; | |
1049 | }; | |
1050 | ||
35d39fec PB |
1051 | #ifdef CONFIG_NET_CLS_ACT |
1052 | DECLARE_STATIC_KEY_FALSE(tc_skb_ext_tc); | |
1053 | void tc_skb_ext_tc_enable(void); | |
1054 | void tc_skb_ext_tc_disable(void); | |
1055 | #define tc_skb_ext_tc_enabled() static_branch_unlikely(&tc_skb_ext_tc) | |
1056 | #else /* CONFIG_NET_CLS_ACT */ | |
1057 | static inline void tc_skb_ext_tc_enable(void) { } | |
1058 | static inline void tc_skb_ext_tc_disable(void) { } | |
1059 | #define tc_skb_ext_tc_enabled() false | |
1060 | #endif | |
1061 | ||
1da177e4 | 1062 | #endif |