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); |
44186460 | 62 | |
48617387 JP |
63 | static inline bool tcf_block_shared(struct tcf_block *block) |
64 | { | |
65 | return block->index; | |
66 | } | |
67 | ||
c1a970d0 VB |
68 | static inline bool tcf_block_non_null_shared(struct tcf_block *block) |
69 | { | |
70 | return block && block->index; | |
71 | } | |
72 | ||
44186460 JP |
73 | static inline struct Qdisc *tcf_block_q(struct tcf_block *block) |
74 | { | |
48617387 | 75 | WARN_ON(tcf_block_shared(block)); |
44186460 JP |
76 | return block->q; |
77 | } | |
78 | ||
3aa26055 DC |
79 | int tcf_classify(struct sk_buff *skb, |
80 | const struct tcf_block *block, | |
81 | const struct tcf_proto *tp, struct tcf_result *res, | |
82 | bool compat_mode); | |
87d83093 | 83 | |
8ae70032 | 84 | #else |
88c44a52 PJV |
85 | static inline bool tcf_block_shared(struct tcf_block *block) |
86 | { | |
87 | return false; | |
88 | } | |
89 | ||
c1a970d0 VB |
90 | static inline bool tcf_block_non_null_shared(struct tcf_block *block) |
91 | { | |
92 | return false; | |
93 | } | |
94 | ||
6529eaba JP |
95 | static inline |
96 | int tcf_block_get(struct tcf_block **p_block, | |
3c149091 SM |
97 | struct tcf_proto __rcu **p_filter_chain, struct Qdisc *q, |
98 | struct netlink_ext_ack *extack) | |
6529eaba JP |
99 | { |
100 | return 0; | |
101 | } | |
102 | ||
8c4083b3 | 103 | static inline |
c7eb7d72 | 104 | int tcf_block_get_ext(struct tcf_block **p_block, struct Qdisc *q, |
33c30a8b QM |
105 | struct tcf_block_ext_info *ei, |
106 | struct netlink_ext_ack *extack) | |
8c4083b3 JP |
107 | { |
108 | return 0; | |
109 | } | |
110 | ||
6529eaba | 111 | static inline void tcf_block_put(struct tcf_block *block) |
8ae70032 JP |
112 | { |
113 | } | |
87d83093 | 114 | |
8c4083b3 | 115 | static inline |
c7eb7d72 | 116 | void tcf_block_put_ext(struct tcf_block *block, struct Qdisc *q, |
8c4083b3 JP |
117 | struct tcf_block_ext_info *ei) |
118 | { | |
119 | } | |
120 | ||
44186460 JP |
121 | static inline struct Qdisc *tcf_block_q(struct tcf_block *block) |
122 | { | |
123 | return NULL; | |
124 | } | |
125 | ||
acb67442 | 126 | static inline |
a7323311 | 127 | int tc_setup_cb_block_register(struct tcf_block *block, flow_setup_cb_t *cb, |
acb67442 JP |
128 | void *cb_priv) |
129 | { | |
130 | return 0; | |
131 | } | |
132 | ||
133 | static inline | |
a7323311 | 134 | void tc_setup_cb_block_unregister(struct tcf_block *block, flow_setup_cb_t *cb, |
acb67442 JP |
135 | void *cb_priv) |
136 | { | |
137 | } | |
138 | ||
3aa26055 DC |
139 | static inline int tcf_classify(struct sk_buff *skb, |
140 | const struct tcf_block *block, | |
141 | const struct tcf_proto *tp, | |
87d83093 JP |
142 | struct tcf_result *res, bool compat_mode) |
143 | { | |
144 | return TC_ACT_UNSPEC; | |
145 | } | |
9410c940 | 146 | |
8ae70032 | 147 | #endif |
cf1facda | 148 | |
1da177e4 LT |
149 | static inline unsigned long |
150 | __cls_set_class(unsigned long *clp, unsigned long cl) | |
151 | { | |
a0efb80c | 152 | return xchg(clp, cl); |
1da177e4 LT |
153 | } |
154 | ||
2e24cd75 CW |
155 | static inline void |
156 | __tcf_bind_filter(struct Qdisc *q, struct tcf_result *r, unsigned long base) | |
1da177e4 | 157 | { |
2e24cd75 | 158 | unsigned long cl; |
34e3759c | 159 | |
2e24cd75 CW |
160 | cl = q->ops->cl_ops->bind_tcf(q, base, r->classid); |
161 | cl = __cls_set_class(&r->class, cl); | |
162 | if (cl) | |
163 | q->ops->cl_ops->unbind_tcf(q, cl); | |
1da177e4 LT |
164 | } |
165 | ||
166 | static inline void | |
167 | tcf_bind_filter(struct tcf_proto *tp, struct tcf_result *r, unsigned long base) | |
168 | { | |
34e3759c | 169 | struct Qdisc *q = tp->chain->block->q; |
1da177e4 | 170 | |
34e3759c JP |
171 | /* Check q as it is not set for shared blocks. In that case, |
172 | * setting class is not supported. | |
173 | */ | |
174 | if (!q) | |
175 | return; | |
2e24cd75 CW |
176 | sch_tree_lock(q); |
177 | __tcf_bind_filter(q, r, base); | |
178 | sch_tree_unlock(q); | |
179 | } | |
180 | ||
181 | static inline void | |
182 | __tcf_unbind_filter(struct Qdisc *q, struct tcf_result *r) | |
183 | { | |
184 | unsigned long cl; | |
185 | ||
186 | if ((cl = __cls_set_class(&r->class, 0)) != 0) | |
34e3759c | 187 | q->ops->cl_ops->unbind_tcf(q, cl); |
1da177e4 LT |
188 | } |
189 | ||
190 | static inline void | |
191 | tcf_unbind_filter(struct tcf_proto *tp, struct tcf_result *r) | |
192 | { | |
34e3759c | 193 | struct Qdisc *q = tp->chain->block->q; |
1da177e4 | 194 | |
34e3759c JP |
195 | if (!q) |
196 | return; | |
2e24cd75 | 197 | __tcf_unbind_filter(q, r); |
1da177e4 LT |
198 | } |
199 | ||
fd2c3ef7 | 200 | struct tcf_exts { |
1da177e4 | 201 | #ifdef CONFIG_NET_CLS_ACT |
33be6271 | 202 | __u32 type; /* for backward compat(TCA_OLD_COMPAT) */ |
22dc13c8 WC |
203 | int nr_actions; |
204 | struct tc_action **actions; | |
dbdcda63 ED |
205 | struct net *net; |
206 | netns_tracker ns_tracker; | |
1da177e4 | 207 | #endif |
5da57f42 WC |
208 | /* Map to export classifier specific extension TLV types to the |
209 | * generic extensions API. Unsupported extensions must be set to 0. | |
210 | */ | |
1da177e4 LT |
211 | int action; |
212 | int police; | |
213 | }; | |
214 | ||
14215108 CW |
215 | static inline int tcf_exts_init(struct tcf_exts *exts, struct net *net, |
216 | int action, int police) | |
33be6271 WC |
217 | { |
218 | #ifdef CONFIG_NET_CLS_ACT | |
5da57f42 | 219 | exts->type = 0; |
22dc13c8 | 220 | exts->nr_actions = 0; |
cb963a19 ED |
221 | /* Note: we do not own yet a reference on net. |
222 | * This reference might be taken later from tcf_exts_get_net(). | |
223 | */ | |
14215108 | 224 | exts->net = net; |
22dc13c8 WC |
225 | exts->actions = kcalloc(TCA_ACT_MAX_PRIO, sizeof(struct tc_action *), |
226 | GFP_KERNEL); | |
b9a24bb7 WC |
227 | if (!exts->actions) |
228 | return -ENOMEM; | |
33be6271 | 229 | #endif |
5da57f42 WC |
230 | exts->action = action; |
231 | exts->police = police; | |
b9a24bb7 | 232 | return 0; |
33be6271 WC |
233 | } |
234 | ||
e4b95c41 CW |
235 | /* Return false if the netns is being destroyed in cleanup_net(). Callers |
236 | * need to do cleanup synchronously in this case, otherwise may race with | |
237 | * tc_action_net_exit(). Return true for other cases. | |
238 | */ | |
239 | static inline bool tcf_exts_get_net(struct tcf_exts *exts) | |
240 | { | |
241 | #ifdef CONFIG_NET_CLS_ACT | |
242 | exts->net = maybe_get_net(exts->net); | |
dbdcda63 ED |
243 | if (exts->net) |
244 | netns_tracker_alloc(exts->net, &exts->ns_tracker, GFP_KERNEL); | |
e4b95c41 CW |
245 | return exts->net != NULL; |
246 | #else | |
247 | return true; | |
248 | #endif | |
249 | } | |
250 | ||
251 | static inline void tcf_exts_put_net(struct tcf_exts *exts) | |
252 | { | |
253 | #ifdef CONFIG_NET_CLS_ACT | |
254 | if (exts->net) | |
dbdcda63 | 255 | put_net_track(exts->net, &exts->ns_tracker); |
e4b95c41 CW |
256 | #endif |
257 | } | |
258 | ||
22dc13c8 | 259 | #ifdef CONFIG_NET_CLS_ACT |
244cd96a CW |
260 | #define tcf_exts_for_each_action(i, a, exts) \ |
261 | for (i = 0; i < TCA_ACT_MAX_PRIO && ((a) = (exts)->actions[i]); i++) | |
262 | #else | |
263 | #define tcf_exts_for_each_action(i, a, exts) \ | |
191672ca | 264 | for (; 0; (void)(i), (void)(a), (void)(exts)) |
22dc13c8 | 265 | #endif |
22dc13c8 | 266 | |
8cbfe939 BZ |
267 | #define tcf_act_for_each_action(i, a, actions) \ |
268 | for (i = 0; i < TCA_ACT_MAX_PRIO && ((a) = actions[i]); i++) | |
269 | ||
d897a638 | 270 | static inline void |
bcd64368 BZ |
271 | tcf_exts_hw_stats_update(const struct tcf_exts *exts, |
272 | u64 bytes, u64 packets, u64 drops, u64 lastuse, | |
273 | u8 used_hw_stats, bool used_hw_stats_valid) | |
d897a638 JK |
274 | { |
275 | #ifdef CONFIG_NET_CLS_ACT | |
276 | int i; | |
277 | ||
d897a638 JK |
278 | for (i = 0; i < exts->nr_actions; i++) { |
279 | struct tc_action *a = exts->actions[i]; | |
280 | ||
c7a66f8d BZ |
281 | /* if stats from hw, just skip */ |
282 | if (tcf_action_update_hw_stats(a)) { | |
283 | preempt_disable(); | |
284 | tcf_action_stats_update(a, bytes, packets, drops, | |
285 | lastuse, true); | |
286 | preempt_enable(); | |
d897a638 | 287 | |
c7a66f8d BZ |
288 | a->used_hw_stats = used_hw_stats; |
289 | a->used_hw_stats_valid = used_hw_stats_valid; | |
290 | } | |
291 | } | |
d897a638 JK |
292 | #endif |
293 | } | |
294 | ||
3bcc0cec JP |
295 | /** |
296 | * tcf_exts_has_actions - check if at least one action is present | |
297 | * @exts: tc filter extensions handle | |
298 | * | |
299 | * Returns true if at least one action is present. | |
300 | */ | |
301 | static inline bool tcf_exts_has_actions(struct tcf_exts *exts) | |
302 | { | |
2734437e | 303 | #ifdef CONFIG_NET_CLS_ACT |
3bcc0cec JP |
304 | return exts->nr_actions; |
305 | #else | |
306 | return false; | |
307 | #endif | |
308 | } | |
2734437e | 309 | |
af69afc5 JP |
310 | /** |
311 | * tcf_exts_exec - execute tc filter extensions | |
312 | * @skb: socket buffer | |
313 | * @exts: tc filter extensions handle | |
314 | * @res: desired result | |
315 | * | |
af089e70 | 316 | * Executes all configured extensions. Returns TC_ACT_OK on a normal execution, |
af69afc5 JP |
317 | * a negative number if the filter must be considered unmatched or |
318 | * a positive action code (TC_ACT_*) which must be returned to the | |
319 | * underlying layer. | |
320 | */ | |
321 | static inline int | |
322 | tcf_exts_exec(struct sk_buff *skb, struct tcf_exts *exts, | |
323 | struct tcf_result *res) | |
324 | { | |
325 | #ifdef CONFIG_NET_CLS_ACT | |
ec1a9cca | 326 | return tcf_action_exec(skb, exts->actions, exts->nr_actions, res); |
af69afc5 | 327 | #endif |
af089e70 | 328 | return TC_ACT_OK; |
af69afc5 JP |
329 | } |
330 | ||
5c15257f JP |
331 | int tcf_exts_validate(struct net *net, struct tcf_proto *tp, |
332 | struct nlattr **tb, struct nlattr *rate_tlv, | |
695176bf | 333 | struct tcf_exts *exts, u32 flags, |
50a56190 | 334 | struct netlink_ext_ack *extack); |
c86e0209 BZ |
335 | int tcf_exts_validate_ex(struct net *net, struct tcf_proto *tp, struct nlattr **tb, |
336 | struct nlattr *rate_tlv, struct tcf_exts *exts, | |
337 | u32 flags, u32 fl_flags, struct netlink_ext_ack *extack); | |
18d0264f | 338 | void tcf_exts_destroy(struct tcf_exts *exts); |
9b0d4446 | 339 | void tcf_exts_change(struct tcf_exts *dst, struct tcf_exts *src); |
5da57f42 | 340 | int tcf_exts_dump(struct sk_buff *skb, struct tcf_exts *exts); |
ca44b738 | 341 | int tcf_exts_terse_dump(struct sk_buff *skb, struct tcf_exts *exts); |
5da57f42 | 342 | int tcf_exts_dump_stats(struct sk_buff *skb, struct tcf_exts *exts); |
1da177e4 LT |
343 | |
344 | /** | |
345 | * struct tcf_pkt_info - packet information | |
0161d151 BX |
346 | * |
347 | * @ptr: start of the pkt data | |
348 | * @nexthdr: offset of the next header | |
1da177e4 | 349 | */ |
fd2c3ef7 | 350 | struct tcf_pkt_info { |
1da177e4 LT |
351 | unsigned char * ptr; |
352 | int nexthdr; | |
353 | }; | |
354 | ||
355 | #ifdef CONFIG_NET_EMATCH | |
356 | ||
357 | struct tcf_ematch_ops; | |
358 | ||
359 | /** | |
360 | * struct tcf_ematch - extended match (ematch) | |
361 | * | |
362 | * @matchid: identifier to allow userspace to reidentify a match | |
363 | * @flags: flags specifying attributes and the relation to other matches | |
364 | * @ops: the operations lookup table of the corresponding ematch module | |
365 | * @datalen: length of the ematch specific configuration data | |
366 | * @data: ematch specific data | |
0161d151 | 367 | * @net: the network namespace |
1da177e4 | 368 | */ |
fd2c3ef7 | 369 | struct tcf_ematch { |
1da177e4 LT |
370 | struct tcf_ematch_ops * ops; |
371 | unsigned long data; | |
372 | unsigned int datalen; | |
373 | u16 matchid; | |
374 | u16 flags; | |
82a470f1 | 375 | struct net *net; |
1da177e4 LT |
376 | }; |
377 | ||
378 | static inline int tcf_em_is_container(struct tcf_ematch *em) | |
379 | { | |
380 | return !em->ops; | |
381 | } | |
382 | ||
383 | static inline int tcf_em_is_simple(struct tcf_ematch *em) | |
384 | { | |
385 | return em->flags & TCF_EM_SIMPLE; | |
386 | } | |
387 | ||
388 | static inline int tcf_em_is_inverted(struct tcf_ematch *em) | |
389 | { | |
390 | return em->flags & TCF_EM_INVERT; | |
391 | } | |
392 | ||
393 | static inline int tcf_em_last_match(struct tcf_ematch *em) | |
394 | { | |
395 | return (em->flags & TCF_EM_REL_MASK) == TCF_EM_REL_END; | |
396 | } | |
397 | ||
398 | static inline int tcf_em_early_end(struct tcf_ematch *em, int result) | |
399 | { | |
400 | if (tcf_em_last_match(em)) | |
401 | return 1; | |
402 | ||
403 | if (result == 0 && em->flags & TCF_EM_REL_AND) | |
404 | return 1; | |
405 | ||
406 | if (result != 0 && em->flags & TCF_EM_REL_OR) | |
407 | return 1; | |
408 | ||
409 | return 0; | |
410 | } | |
411 | ||
412 | /** | |
413 | * struct tcf_ematch_tree - ematch tree handle | |
414 | * | |
415 | * @hdr: ematch tree header supplied by userspace | |
416 | * @matches: array of ematches | |
417 | */ | |
fd2c3ef7 | 418 | struct tcf_ematch_tree { |
1da177e4 LT |
419 | struct tcf_ematch_tree_hdr hdr; |
420 | struct tcf_ematch * matches; | |
421 | ||
422 | }; | |
423 | ||
424 | /** | |
425 | * struct tcf_ematch_ops - ematch module operations | |
426 | * | |
427 | * @kind: identifier (kind) of this ematch module | |
428 | * @datalen: length of expected configuration data (optional) | |
429 | * @change: called during validation (optional) | |
430 | * @match: called during ematch tree evaluation, must return 1/0 | |
431 | * @destroy: called during destroyage (optional) | |
432 | * @dump: called during dumping process (optional) | |
433 | * @owner: owner, must be set to THIS_MODULE | |
434 | * @link: link to previous/next ematch module (internal use) | |
435 | */ | |
fd2c3ef7 | 436 | struct tcf_ematch_ops { |
1da177e4 LT |
437 | int kind; |
438 | int datalen; | |
82a470f1 | 439 | int (*change)(struct net *net, void *, |
1da177e4 LT |
440 | int, struct tcf_ematch *); |
441 | int (*match)(struct sk_buff *, struct tcf_ematch *, | |
442 | struct tcf_pkt_info *); | |
82a470f1 | 443 | void (*destroy)(struct tcf_ematch *); |
1da177e4 LT |
444 | int (*dump)(struct sk_buff *, struct tcf_ematch *); |
445 | struct module *owner; | |
446 | struct list_head link; | |
447 | }; | |
448 | ||
5c15257f JP |
449 | int tcf_em_register(struct tcf_ematch_ops *); |
450 | void tcf_em_unregister(struct tcf_ematch_ops *); | |
451 | int tcf_em_tree_validate(struct tcf_proto *, struct nlattr *, | |
452 | struct tcf_ematch_tree *); | |
82a470f1 | 453 | void tcf_em_tree_destroy(struct tcf_ematch_tree *); |
5c15257f JP |
454 | int tcf_em_tree_dump(struct sk_buff *, struct tcf_ematch_tree *, int); |
455 | int __tcf_em_tree_match(struct sk_buff *, struct tcf_ematch_tree *, | |
456 | struct tcf_pkt_info *); | |
1da177e4 | 457 | |
1da177e4 LT |
458 | /** |
459 | * tcf_em_tree_match - evaulate an ematch tree | |
460 | * | |
461 | * @skb: socket buffer of the packet in question | |
462 | * @tree: ematch tree to be used for evaluation | |
463 | * @info: packet information examined by classifier | |
464 | * | |
465 | * This function matches @skb against the ematch tree in @tree by going | |
466 | * through all ematches respecting their logic relations returning | |
467 | * as soon as the result is obvious. | |
468 | * | |
469 | * Returns 1 if the ematch tree as-one matches, no ematches are configured | |
470 | * or ematch is not enabled in the kernel, otherwise 0 is returned. | |
471 | */ | |
472 | static inline int tcf_em_tree_match(struct sk_buff *skb, | |
473 | struct tcf_ematch_tree *tree, | |
474 | struct tcf_pkt_info *info) | |
475 | { | |
476 | if (tree->hdr.nmatches) | |
477 | return __tcf_em_tree_match(skb, tree, info); | |
478 | else | |
479 | return 1; | |
480 | } | |
481 | ||
db3d99c0 PM |
482 | #define MODULE_ALIAS_TCF_EMATCH(kind) MODULE_ALIAS("ematch-kind-" __stringify(kind)) |
483 | ||
1da177e4 LT |
484 | #else /* CONFIG_NET_EMATCH */ |
485 | ||
fd2c3ef7 | 486 | struct tcf_ematch_tree { |
1da177e4 LT |
487 | }; |
488 | ||
489 | #define tcf_em_tree_validate(tp, tb, t) ((void)(t), 0) | |
82a470f1 | 490 | #define tcf_em_tree_destroy(t) do { (void)(t); } while(0) |
1da177e4 | 491 | #define tcf_em_tree_dump(skb, t, tlv) (0) |
1da177e4 LT |
492 | #define tcf_em_tree_match(skb, t, info) ((void)(info), 1) |
493 | ||
494 | #endif /* CONFIG_NET_EMATCH */ | |
495 | ||
496 | static inline unsigned char * tcf_get_base_ptr(struct sk_buff *skb, int layer) | |
497 | { | |
498 | switch (layer) { | |
499 | case TCF_LAYER_LINK: | |
d3303a65 | 500 | return skb_mac_header(skb); |
1da177e4 | 501 | case TCF_LAYER_NETWORK: |
d56f90a7 | 502 | return skb_network_header(skb); |
1da177e4 | 503 | case TCF_LAYER_TRANSPORT: |
9c70220b | 504 | return skb_transport_header(skb); |
1da177e4 LT |
505 | } |
506 | ||
507 | return NULL; | |
508 | } | |
509 | ||
eddc9ec5 ACM |
510 | static inline int tcf_valid_offset(const struct sk_buff *skb, |
511 | const unsigned char *ptr, const int len) | |
1da177e4 | 512 | { |
da521b2c DM |
513 | return likely((ptr + len) <= skb_tail_pointer(skb) && |
514 | ptr >= skb->head && | |
515 | (ptr <= (ptr + len))); | |
1da177e4 LT |
516 | } |
517 | ||
1da177e4 | 518 | static inline int |
1057c55f AA |
519 | tcf_change_indev(struct net *net, struct nlattr *indev_tlv, |
520 | struct netlink_ext_ack *extack) | |
1da177e4 | 521 | { |
2519a602 WC |
522 | char indev[IFNAMSIZ]; |
523 | struct net_device *dev; | |
524 | ||
872f6903 | 525 | if (nla_strscpy(indev, indev_tlv, IFNAMSIZ) < 0) { |
e4a58ef3 GN |
526 | NL_SET_ERR_MSG_ATTR(extack, indev_tlv, |
527 | "Interface name too long"); | |
1da177e4 | 528 | return -EINVAL; |
1057c55f | 529 | } |
2519a602 | 530 | dev = __dev_get_by_name(net, indev); |
e4a58ef3 GN |
531 | if (!dev) { |
532 | NL_SET_ERR_MSG_ATTR(extack, indev_tlv, | |
533 | "Network device not found"); | |
2519a602 | 534 | return -ENODEV; |
e4a58ef3 | 535 | } |
2519a602 | 536 | return dev->ifindex; |
1da177e4 LT |
537 | } |
538 | ||
2519a602 WC |
539 | static inline bool |
540 | tcf_match_indev(struct sk_buff *skb, int ifindex) | |
1da177e4 | 541 | { |
2519a602 WC |
542 | if (!ifindex) |
543 | return true; | |
544 | if (!skb->skb_iif) | |
545 | return false; | |
546 | return ifindex == skb->skb_iif; | |
1da177e4 | 547 | } |
1da177e4 | 548 | |
9c1c0e12 | 549 | int tc_setup_offload_action(struct flow_action *flow_action, |
c2ccf84e IS |
550 | const struct tcf_exts *exts, |
551 | struct netlink_ext_ack *extack); | |
9c1c0e12 | 552 | void tc_cleanup_offload_action(struct flow_action *flow_action); |
8cbfe939 | 553 | int tc_setup_action(struct flow_action *flow_action, |
c2ccf84e IS |
554 | struct tc_action *actions[], |
555 | struct netlink_ext_ack *extack); | |
5a6ff4b1 | 556 | |
aeb3fecd | 557 | int tc_setup_cb_call(struct tcf_block *block, enum tc_setup_type type, |
40119211 VB |
558 | void *type_data, bool err_stop, bool rtnl_held); |
559 | int tc_setup_cb_add(struct tcf_block *block, struct tcf_proto *tp, | |
560 | enum tc_setup_type type, void *type_data, bool err_stop, | |
561 | u32 *flags, unsigned int *in_hw_count, bool rtnl_held); | |
562 | int tc_setup_cb_replace(struct tcf_block *block, struct tcf_proto *tp, | |
563 | enum tc_setup_type type, void *type_data, bool err_stop, | |
564 | u32 *old_flags, unsigned int *old_in_hw_count, | |
565 | u32 *new_flags, unsigned int *new_in_hw_count, | |
566 | bool rtnl_held); | |
567 | int tc_setup_cb_destroy(struct tcf_block *block, struct tcf_proto *tp, | |
568 | enum tc_setup_type type, void *type_data, bool err_stop, | |
569 | u32 *flags, unsigned int *in_hw_count, bool rtnl_held); | |
570 | int tc_setup_cb_reoffload(struct tcf_block *block, struct tcf_proto *tp, | |
571 | bool add, flow_setup_cb_t *cb, | |
572 | enum tc_setup_type type, void *type_data, | |
573 | void *cb_priv, u32 *flags, unsigned int *in_hw_count); | |
e3ab786b | 574 | unsigned int tcf_exts_num_actions(struct tcf_exts *exts); |
717503b9 | 575 | |
3625750f PM |
576 | #ifdef CONFIG_NET_CLS_ACT |
577 | int tcf_qevent_init(struct tcf_qevent *qe, struct Qdisc *sch, | |
578 | enum flow_block_binder_type binder_type, | |
579 | struct nlattr *block_index_attr, | |
580 | struct netlink_ext_ack *extack); | |
581 | void tcf_qevent_destroy(struct tcf_qevent *qe, struct Qdisc *sch); | |
582 | int tcf_qevent_validate_change(struct tcf_qevent *qe, struct nlattr *block_index_attr, | |
583 | struct netlink_ext_ack *extack); | |
584 | struct sk_buff *tcf_qevent_handle(struct tcf_qevent *qe, struct Qdisc *sch, struct sk_buff *skb, | |
55f656cd | 585 | struct sk_buff **to_free, int *ret); |
3625750f PM |
586 | int tcf_qevent_dump(struct sk_buff *skb, int attr_name, struct tcf_qevent *qe); |
587 | #else | |
588 | static inline int tcf_qevent_init(struct tcf_qevent *qe, struct Qdisc *sch, | |
589 | enum flow_block_binder_type binder_type, | |
590 | struct nlattr *block_index_attr, | |
591 | struct netlink_ext_ack *extack) | |
592 | { | |
593 | return 0; | |
594 | } | |
595 | ||
596 | static inline void tcf_qevent_destroy(struct tcf_qevent *qe, struct Qdisc *sch) | |
597 | { | |
598 | } | |
599 | ||
600 | static inline int tcf_qevent_validate_change(struct tcf_qevent *qe, struct nlattr *block_index_attr, | |
601 | struct netlink_ext_ack *extack) | |
602 | { | |
603 | return 0; | |
604 | } | |
605 | ||
606 | static inline struct sk_buff * | |
607 | tcf_qevent_handle(struct tcf_qevent *qe, struct Qdisc *sch, struct sk_buff *skb, | |
55f656cd | 608 | struct sk_buff **to_free, int *ret) |
3625750f PM |
609 | { |
610 | return skb; | |
611 | } | |
612 | ||
613 | static inline int tcf_qevent_dump(struct sk_buff *skb, int attr_name, struct tcf_qevent *qe) | |
614 | { | |
615 | return 0; | |
616 | } | |
617 | #endif | |
618 | ||
a1b7c5fd JF |
619 | struct tc_cls_u32_knode { |
620 | struct tcf_exts *exts; | |
068ceb35 | 621 | struct tcf_result *res; |
e014860e | 622 | struct tc_u32_sel *sel; |
a1b7c5fd JF |
623 | u32 handle; |
624 | u32 val; | |
625 | u32 mask; | |
626 | u32 link_handle; | |
e014860e | 627 | u8 fshift; |
a1b7c5fd JF |
628 | }; |
629 | ||
630 | struct tc_cls_u32_hnode { | |
631 | u32 handle; | |
632 | u32 prio; | |
633 | unsigned int divisor; | |
634 | }; | |
635 | ||
636 | enum tc_clsu32_command { | |
637 | TC_CLSU32_NEW_KNODE, | |
638 | TC_CLSU32_REPLACE_KNODE, | |
639 | TC_CLSU32_DELETE_KNODE, | |
640 | TC_CLSU32_NEW_HNODE, | |
641 | TC_CLSU32_REPLACE_HNODE, | |
642 | TC_CLSU32_DELETE_HNODE, | |
643 | }; | |
644 | ||
645 | struct tc_cls_u32_offload { | |
f9e30088 | 646 | struct flow_cls_common_offload common; |
a1b7c5fd JF |
647 | /* knode values */ |
648 | enum tc_clsu32_command command; | |
649 | union { | |
650 | struct tc_cls_u32_knode knode; | |
651 | struct tc_cls_u32_hnode hnode; | |
652 | }; | |
653 | }; | |
654 | ||
7b06e8ae | 655 | static inline bool tc_can_offload(const struct net_device *dev) |
6843e7a2 | 656 | { |
70b5aee4 | 657 | return dev->features & NETIF_F_HW_TC; |
6843e7a2 JF |
658 | } |
659 | ||
f9eda14f QM |
660 | static inline bool tc_can_offload_extack(const struct net_device *dev, |
661 | struct netlink_ext_ack *extack) | |
662 | { | |
663 | bool can = tc_can_offload(dev); | |
664 | ||
665 | if (!can) | |
666 | NL_SET_ERR_MSG(extack, "TC offload is disabled on net device"); | |
667 | ||
668 | return can; | |
669 | } | |
670 | ||
878db9f0 JK |
671 | static inline bool |
672 | tc_cls_can_offload_and_chain0(const struct net_device *dev, | |
f9e30088 | 673 | struct flow_cls_common_offload *common) |
878db9f0 JK |
674 | { |
675 | if (!tc_can_offload_extack(dev, common->extack)) | |
676 | return false; | |
677 | if (common->chain_index) { | |
678 | NL_SET_ERR_MSG(common->extack, | |
679 | "Driver supports only offload of chain 0"); | |
680 | return false; | |
681 | } | |
682 | return true; | |
683 | } | |
684 | ||
55330f05 HHZ |
685 | static inline bool tc_skip_hw(u32 flags) |
686 | { | |
687 | return (flags & TCA_CLS_FLAGS_SKIP_HW) ? true : false; | |
688 | } | |
689 | ||
d34e3e18 SS |
690 | static inline bool tc_skip_sw(u32 flags) |
691 | { | |
692 | return (flags & TCA_CLS_FLAGS_SKIP_SW) ? true : false; | |
693 | } | |
694 | ||
695 | /* SKIP_HW and SKIP_SW are mutually exclusive flags. */ | |
696 | static inline bool tc_flags_valid(u32 flags) | |
697 | { | |
81c7288b MRL |
698 | if (flags & ~(TCA_CLS_FLAGS_SKIP_HW | TCA_CLS_FLAGS_SKIP_SW | |
699 | TCA_CLS_FLAGS_VERBOSE)) | |
d34e3e18 SS |
700 | return false; |
701 | ||
81c7288b | 702 | flags &= TCA_CLS_FLAGS_SKIP_HW | TCA_CLS_FLAGS_SKIP_SW; |
d34e3e18 SS |
703 | if (!(flags ^ (TCA_CLS_FLAGS_SKIP_HW | TCA_CLS_FLAGS_SKIP_SW))) |
704 | return false; | |
705 | ||
706 | return true; | |
707 | } | |
708 | ||
e696028a OG |
709 | static inline bool tc_in_hw(u32 flags) |
710 | { | |
711 | return (flags & TCA_CLS_FLAGS_IN_HW) ? true : false; | |
712 | } | |
713 | ||
34832e1c | 714 | static inline void |
f9e30088 | 715 | tc_cls_common_offload_init(struct flow_cls_common_offload *cls_common, |
34832e1c JK |
716 | const struct tcf_proto *tp, u32 flags, |
717 | struct netlink_ext_ack *extack) | |
718 | { | |
719 | cls_common->chain_index = tp->chain->index; | |
720 | cls_common->protocol = tp->protocol; | |
ef01adae | 721 | cls_common->prio = tp->prio >> 16; |
81c7288b | 722 | if (tc_skip_sw(flags) || flags & TCA_CLS_FLAGS_VERBOSE) |
34832e1c JK |
723 | cls_common->extack = extack; |
724 | } | |
725 | ||
9453d45e VB |
726 | #if IS_ENABLED(CONFIG_NET_TC_SKB_EXT) |
727 | static inline struct tc_skb_ext *tc_skb_ext_alloc(struct sk_buff *skb) | |
728 | { | |
729 | struct tc_skb_ext *tc_skb_ext = skb_ext_add(skb, TC_SKB_EXT); | |
730 | ||
731 | if (tc_skb_ext) | |
732 | memset(tc_skb_ext, 0, sizeof(*tc_skb_ext)); | |
733 | return tc_skb_ext; | |
734 | } | |
735 | #endif | |
736 | ||
b87f7936 YG |
737 | enum tc_matchall_command { |
738 | TC_CLSMATCHALL_REPLACE, | |
739 | TC_CLSMATCHALL_DESTROY, | |
b7fe4ab8 | 740 | TC_CLSMATCHALL_STATS, |
b87f7936 YG |
741 | }; |
742 | ||
743 | struct tc_cls_matchall_offload { | |
f9e30088 | 744 | struct flow_cls_common_offload common; |
b87f7936 | 745 | enum tc_matchall_command command; |
f00cbf19 | 746 | struct flow_rule *rule; |
b7fe4ab8 | 747 | struct flow_stats stats; |
b87f7936 YG |
748 | unsigned long cookie; |
749 | }; | |
750 | ||
332ae8e2 | 751 | enum tc_clsbpf_command { |
102740bd | 752 | TC_CLSBPF_OFFLOAD, |
68d64063 | 753 | TC_CLSBPF_STATS, |
332ae8e2 JK |
754 | }; |
755 | ||
756 | struct tc_cls_bpf_offload { | |
f9e30088 | 757 | struct flow_cls_common_offload common; |
332ae8e2 JK |
758 | enum tc_clsbpf_command command; |
759 | struct tcf_exts *exts; | |
760 | struct bpf_prog *prog; | |
102740bd | 761 | struct bpf_prog *oldprog; |
332ae8e2 JK |
762 | const char *name; |
763 | bool exts_integrated; | |
764 | }; | |
765 | ||
4e8b86c0 AN |
766 | struct tc_mqprio_qopt_offload { |
767 | /* struct tc_mqprio_qopt must always be the first element */ | |
768 | struct tc_mqprio_qopt qopt; | |
769 | u16 mode; | |
770 | u16 shaper; | |
771 | u32 flags; | |
772 | u64 min_rate[TC_QOPT_MAX_QUEUE]; | |
773 | u64 max_rate[TC_QOPT_MAX_QUEUE]; | |
774 | }; | |
1045ba77 JHS |
775 | |
776 | /* This structure holds cookie structure that is passed from user | |
777 | * to the kernel for actions and classifiers | |
778 | */ | |
779 | struct tc_cookie { | |
780 | u8 *data; | |
781 | u32 len; | |
eec94fdb | 782 | struct rcu_head rcu; |
1045ba77 | 783 | }; |
602f3baf | 784 | |
f34b4aac | 785 | struct tc_qopt_offload_stats { |
50dc9a85 | 786 | struct gnet_stats_basic_sync *bstats; |
f34b4aac NF |
787 | struct gnet_stats_queue *qstats; |
788 | }; | |
789 | ||
f971b132 JK |
790 | enum tc_mq_command { |
791 | TC_MQ_CREATE, | |
792 | TC_MQ_DESTROY, | |
47c669a4 | 793 | TC_MQ_STATS, |
d577a3d2 JK |
794 | TC_MQ_GRAFT, |
795 | }; | |
796 | ||
797 | struct tc_mq_opt_offload_graft_params { | |
798 | unsigned long queue; | |
799 | u32 child_handle; | |
f971b132 JK |
800 | }; |
801 | ||
802 | struct tc_mq_qopt_offload { | |
803 | enum tc_mq_command command; | |
804 | u32 handle; | |
d577a3d2 JK |
805 | union { |
806 | struct tc_qopt_offload_stats stats; | |
807 | struct tc_mq_opt_offload_graft_params graft_params; | |
808 | }; | |
f971b132 JK |
809 | }; |
810 | ||
d03b195b MM |
811 | enum tc_htb_command { |
812 | /* Root */ | |
813 | TC_HTB_CREATE, /* Initialize HTB offload. */ | |
814 | TC_HTB_DESTROY, /* Destroy HTB offload. */ | |
815 | ||
816 | /* Classes */ | |
817 | /* Allocate qid and create leaf. */ | |
818 | TC_HTB_LEAF_ALLOC_QUEUE, | |
819 | /* Convert leaf to inner, preserve and return qid, create new leaf. */ | |
820 | TC_HTB_LEAF_TO_INNER, | |
821 | /* Delete leaf, while siblings remain. */ | |
822 | TC_HTB_LEAF_DEL, | |
823 | /* Delete leaf, convert parent to leaf, preserving qid. */ | |
824 | TC_HTB_LEAF_DEL_LAST, | |
825 | /* TC_HTB_LEAF_DEL_LAST, but delete driver data on hardware errors. */ | |
826 | TC_HTB_LEAF_DEL_LAST_FORCE, | |
827 | /* Modify parameters of a node. */ | |
828 | TC_HTB_NODE_MODIFY, | |
829 | ||
830 | /* Class qdisc */ | |
831 | TC_HTB_LEAF_QUERY_QUEUE, /* Query qid by classid. */ | |
832 | }; | |
833 | ||
834 | struct tc_htb_qopt_offload { | |
835 | struct netlink_ext_ack *extack; | |
836 | enum tc_htb_command command; | |
d03b195b | 837 | u32 parent_classid; |
ca49bfd9 | 838 | u16 classid; |
d03b195b | 839 | u16 qid; |
d03b195b MM |
840 | u64 rate; |
841 | u64 ceil; | |
842 | }; | |
843 | ||
844 | #define TC_HTB_CLASSID_ROOT U32_MAX | |
845 | ||
602f3baf NF |
846 | enum tc_red_command { |
847 | TC_RED_REPLACE, | |
848 | TC_RED_DESTROY, | |
849 | TC_RED_STATS, | |
850 | TC_RED_XSTATS, | |
bf2a752b | 851 | TC_RED_GRAFT, |
602f3baf NF |
852 | }; |
853 | ||
854 | struct tc_red_qopt_offload_params { | |
855 | u32 min; | |
856 | u32 max; | |
857 | u32 probability; | |
c0b7490b | 858 | u32 limit; |
602f3baf | 859 | bool is_ecn; |
190852a5 | 860 | bool is_harddrop; |
0a7fad23 | 861 | bool is_nodrop; |
416ef9b1 | 862 | struct gnet_stats_queue *qstats; |
602f3baf | 863 | }; |
602f3baf NF |
864 | |
865 | struct tc_red_qopt_offload { | |
866 | enum tc_red_command command; | |
867 | u32 handle; | |
868 | u32 parent; | |
869 | union { | |
870 | struct tc_red_qopt_offload_params set; | |
f34b4aac | 871 | struct tc_qopt_offload_stats stats; |
602f3baf | 872 | struct red_stats *xstats; |
bf2a752b | 873 | u32 child_handle; |
602f3baf NF |
874 | }; |
875 | }; | |
876 | ||
890d8d23 JK |
877 | enum tc_gred_command { |
878 | TC_GRED_REPLACE, | |
879 | TC_GRED_DESTROY, | |
e49efd52 | 880 | TC_GRED_STATS, |
890d8d23 JK |
881 | }; |
882 | ||
883 | struct tc_gred_vq_qopt_offload_params { | |
884 | bool present; | |
885 | u32 limit; | |
886 | u32 prio; | |
887 | u32 min; | |
888 | u32 max; | |
889 | bool is_ecn; | |
890 | bool is_harddrop; | |
891 | u32 probability; | |
892 | /* Only need backlog, see struct tc_prio_qopt_offload_params */ | |
893 | u32 *backlog; | |
894 | }; | |
895 | ||
896 | struct tc_gred_qopt_offload_params { | |
897 | bool grio_on; | |
898 | bool wred_on; | |
899 | unsigned int dp_cnt; | |
900 | unsigned int dp_def; | |
901 | struct gnet_stats_queue *qstats; | |
902 | struct tc_gred_vq_qopt_offload_params tab[MAX_DPs]; | |
903 | }; | |
904 | ||
e49efd52 | 905 | struct tc_gred_qopt_offload_stats { |
50dc9a85 | 906 | struct gnet_stats_basic_sync bstats[MAX_DPs]; |
e49efd52 JK |
907 | struct gnet_stats_queue qstats[MAX_DPs]; |
908 | struct red_stats *xstats[MAX_DPs]; | |
909 | }; | |
910 | ||
890d8d23 JK |
911 | struct tc_gred_qopt_offload { |
912 | enum tc_gred_command command; | |
913 | u32 handle; | |
914 | u32 parent; | |
915 | union { | |
916 | struct tc_gred_qopt_offload_params set; | |
e49efd52 | 917 | struct tc_gred_qopt_offload_stats stats; |
890d8d23 JK |
918 | }; |
919 | }; | |
920 | ||
7fdb61b4 NF |
921 | enum tc_prio_command { |
922 | TC_PRIO_REPLACE, | |
923 | TC_PRIO_DESTROY, | |
924 | TC_PRIO_STATS, | |
b9c7a7ac | 925 | TC_PRIO_GRAFT, |
7fdb61b4 NF |
926 | }; |
927 | ||
928 | struct tc_prio_qopt_offload_params { | |
929 | int bands; | |
930 | u8 priomap[TC_PRIO_MAX + 1]; | |
9586a992 PM |
931 | /* At the point of un-offloading the Qdisc, the reported backlog and |
932 | * qlen need to be reduced by the portion that is in HW. | |
7fdb61b4 NF |
933 | */ |
934 | struct gnet_stats_queue *qstats; | |
935 | }; | |
936 | ||
b9c7a7ac NF |
937 | struct tc_prio_qopt_offload_graft_params { |
938 | u8 band; | |
939 | u32 child_handle; | |
940 | }; | |
941 | ||
7fdb61b4 NF |
942 | struct tc_prio_qopt_offload { |
943 | enum tc_prio_command command; | |
944 | u32 handle; | |
945 | u32 parent; | |
946 | union { | |
947 | struct tc_prio_qopt_offload_params replace_params; | |
948 | struct tc_qopt_offload_stats stats; | |
b9c7a7ac | 949 | struct tc_prio_qopt_offload_graft_params graft_params; |
7fdb61b4 NF |
950 | }; |
951 | }; | |
b9c7a7ac | 952 | |
98b0e5f6 JK |
953 | enum tc_root_command { |
954 | TC_ROOT_GRAFT, | |
955 | }; | |
956 | ||
957 | struct tc_root_qopt_offload { | |
958 | enum tc_root_command command; | |
959 | u32 handle; | |
960 | bool ingress; | |
961 | }; | |
962 | ||
d35eb52b PM |
963 | enum tc_ets_command { |
964 | TC_ETS_REPLACE, | |
965 | TC_ETS_DESTROY, | |
966 | TC_ETS_STATS, | |
967 | TC_ETS_GRAFT, | |
968 | }; | |
969 | ||
970 | struct tc_ets_qopt_offload_replace_params { | |
971 | unsigned int bands; | |
972 | u8 priomap[TC_PRIO_MAX + 1]; | |
973 | unsigned int quanta[TCQ_ETS_MAX_BANDS]; /* 0 for strict bands. */ | |
974 | unsigned int weights[TCQ_ETS_MAX_BANDS]; | |
975 | struct gnet_stats_queue *qstats; | |
976 | }; | |
977 | ||
978 | struct tc_ets_qopt_offload_graft_params { | |
979 | u8 band; | |
980 | u32 child_handle; | |
981 | }; | |
982 | ||
983 | struct tc_ets_qopt_offload { | |
984 | enum tc_ets_command command; | |
985 | u32 handle; | |
986 | u32 parent; | |
987 | union { | |
988 | struct tc_ets_qopt_offload_replace_params replace_params; | |
989 | struct tc_qopt_offload_stats stats; | |
990 | struct tc_ets_qopt_offload_graft_params graft_params; | |
991 | }; | |
992 | }; | |
993 | ||
ef6aadcc PM |
994 | enum tc_tbf_command { |
995 | TC_TBF_REPLACE, | |
996 | TC_TBF_DESTROY, | |
997 | TC_TBF_STATS, | |
6b3efbfa | 998 | TC_TBF_GRAFT, |
ef6aadcc PM |
999 | }; |
1000 | ||
1001 | struct tc_tbf_qopt_offload_replace_params { | |
1002 | struct psched_ratecfg rate; | |
1003 | u32 max_size; | |
1004 | struct gnet_stats_queue *qstats; | |
1005 | }; | |
1006 | ||
1007 | struct tc_tbf_qopt_offload { | |
1008 | enum tc_tbf_command command; | |
1009 | u32 handle; | |
1010 | u32 parent; | |
1011 | union { | |
1012 | struct tc_tbf_qopt_offload_replace_params replace_params; | |
1013 | struct tc_qopt_offload_stats stats; | |
6b3efbfa | 1014 | u32 child_handle; |
ef6aadcc PM |
1015 | }; |
1016 | }; | |
1017 | ||
aaca9408 PM |
1018 | enum tc_fifo_command { |
1019 | TC_FIFO_REPLACE, | |
1020 | TC_FIFO_DESTROY, | |
1021 | TC_FIFO_STATS, | |
1022 | }; | |
1023 | ||
1024 | struct tc_fifo_qopt_offload { | |
1025 | enum tc_fifo_command command; | |
1026 | u32 handle; | |
1027 | u32 parent; | |
1028 | union { | |
1029 | struct tc_qopt_offload_stats stats; | |
1030 | }; | |
1031 | }; | |
1032 | ||
35d39fec PB |
1033 | #ifdef CONFIG_NET_CLS_ACT |
1034 | DECLARE_STATIC_KEY_FALSE(tc_skb_ext_tc); | |
1035 | void tc_skb_ext_tc_enable(void); | |
1036 | void tc_skb_ext_tc_disable(void); | |
1037 | #define tc_skb_ext_tc_enabled() static_branch_unlikely(&tc_skb_ext_tc) | |
1038 | #else /* CONFIG_NET_CLS_ACT */ | |
1039 | static inline void tc_skb_ext_tc_enable(void) { } | |
1040 | static inline void tc_skb_ext_tc_disable(void) { } | |
1041 | #define tc_skb_ext_tc_enabled() false | |
1042 | #endif | |
1043 | ||
1da177e4 | 1044 | #endif |