Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | #ifndef __NET_PKT_CLS_H |
2 | #define __NET_PKT_CLS_H | |
3 | ||
4 | #include <linux/pkt_cls.h> | |
5 | #include <net/sch_generic.h> | |
6 | #include <net/act_api.h> | |
7 | ||
8 | /* Basic packet classifier frontend definitions. */ | |
9 | ||
fd2c3ef7 | 10 | struct tcf_walker { |
1da177e4 LT |
11 | int stop; |
12 | int skip; | |
13 | int count; | |
8113c095 | 14 | int (*fn)(struct tcf_proto *, void *node, struct tcf_walker *); |
1da177e4 LT |
15 | }; |
16 | ||
5c15257f JP |
17 | int register_tcf_proto_ops(struct tcf_proto_ops *ops); |
18 | int unregister_tcf_proto_ops(struct tcf_proto_ops *ops); | |
1da177e4 | 19 | |
8c4083b3 JP |
20 | enum tcf_block_binder_type { |
21 | TCF_BLOCK_BINDER_TYPE_UNSPEC, | |
6e40cf2d JP |
22 | TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS, |
23 | TCF_BLOCK_BINDER_TYPE_CLSACT_EGRESS, | |
8c4083b3 JP |
24 | }; |
25 | ||
26 | struct tcf_block_ext_info { | |
27 | enum tcf_block_binder_type binder_type; | |
28 | }; | |
29 | ||
8ae70032 | 30 | #ifdef CONFIG_NET_CLS |
367a8ce8 WC |
31 | struct tcf_chain *tcf_chain_get(struct tcf_block *block, u32 chain_index, |
32 | bool create); | |
5bc17018 | 33 | void tcf_chain_put(struct tcf_chain *chain); |
6529eaba | 34 | int tcf_block_get(struct tcf_block **p_block, |
69d78ef2 | 35 | struct tcf_proto __rcu **p_filter_chain, struct Qdisc *q); |
8c4083b3 JP |
36 | int tcf_block_get_ext(struct tcf_block **p_block, |
37 | struct tcf_proto __rcu **p_filter_chain, struct Qdisc *q, | |
38 | struct tcf_block_ext_info *ei); | |
6529eaba | 39 | void tcf_block_put(struct tcf_block *block); |
8c4083b3 JP |
40 | void tcf_block_put_ext(struct tcf_block *block, |
41 | struct tcf_proto __rcu **p_filter_chain, struct Qdisc *q, | |
42 | struct tcf_block_ext_info *ei); | |
44186460 JP |
43 | |
44 | static inline struct Qdisc *tcf_block_q(struct tcf_block *block) | |
45 | { | |
46 | return block->q; | |
47 | } | |
48 | ||
49 | static inline struct net_device *tcf_block_dev(struct tcf_block *block) | |
50 | { | |
51 | return tcf_block_q(block)->dev_queue->dev; | |
52 | } | |
53 | ||
87d83093 JP |
54 | int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp, |
55 | struct tcf_result *res, bool compat_mode); | |
56 | ||
8ae70032 | 57 | #else |
6529eaba JP |
58 | static inline |
59 | int tcf_block_get(struct tcf_block **p_block, | |
69d78ef2 | 60 | struct tcf_proto __rcu **p_filter_chain, struct Qdisc *q) |
6529eaba JP |
61 | { |
62 | return 0; | |
63 | } | |
64 | ||
8c4083b3 JP |
65 | static inline |
66 | int tcf_block_get_ext(struct tcf_block **p_block, | |
67 | struct tcf_proto __rcu **p_filter_chain, struct Qdisc *q, | |
68 | struct tcf_block_ext_info *ei) | |
69 | { | |
70 | return 0; | |
71 | } | |
72 | ||
6529eaba | 73 | static inline void tcf_block_put(struct tcf_block *block) |
8ae70032 JP |
74 | { |
75 | } | |
87d83093 | 76 | |
8c4083b3 JP |
77 | static inline |
78 | void tcf_block_put_ext(struct tcf_block *block, | |
79 | struct tcf_proto __rcu **p_filter_chain, struct Qdisc *q, | |
80 | struct tcf_block_ext_info *ei) | |
81 | { | |
82 | } | |
83 | ||
44186460 JP |
84 | static inline struct Qdisc *tcf_block_q(struct tcf_block *block) |
85 | { | |
86 | return NULL; | |
87 | } | |
88 | ||
89 | static inline struct net_device *tcf_block_dev(struct tcf_block *block) | |
90 | { | |
91 | return NULL; | |
92 | } | |
93 | ||
87d83093 JP |
94 | static inline int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp, |
95 | struct tcf_result *res, bool compat_mode) | |
96 | { | |
97 | return TC_ACT_UNSPEC; | |
98 | } | |
8ae70032 | 99 | #endif |
cf1facda | 100 | |
1da177e4 LT |
101 | static inline unsigned long |
102 | __cls_set_class(unsigned long *clp, unsigned long cl) | |
103 | { | |
a0efb80c | 104 | return xchg(clp, cl); |
1da177e4 LT |
105 | } |
106 | ||
107 | static inline unsigned long | |
34e3759c | 108 | cls_set_class(struct Qdisc *q, unsigned long *clp, unsigned long cl) |
1da177e4 LT |
109 | { |
110 | unsigned long old_cl; | |
34e3759c JP |
111 | |
112 | sch_tree_lock(q); | |
1da177e4 | 113 | old_cl = __cls_set_class(clp, cl); |
34e3759c | 114 | sch_tree_unlock(q); |
1da177e4 LT |
115 | return old_cl; |
116 | } | |
117 | ||
118 | static inline void | |
119 | tcf_bind_filter(struct tcf_proto *tp, struct tcf_result *r, unsigned long base) | |
120 | { | |
34e3759c | 121 | struct Qdisc *q = tp->chain->block->q; |
1da177e4 LT |
122 | unsigned long cl; |
123 | ||
34e3759c JP |
124 | /* Check q as it is not set for shared blocks. In that case, |
125 | * setting class is not supported. | |
126 | */ | |
127 | if (!q) | |
128 | return; | |
129 | cl = q->ops->cl_ops->bind_tcf(q, base, r->classid); | |
130 | cl = cls_set_class(q, &r->class, cl); | |
1da177e4 | 131 | if (cl) |
34e3759c | 132 | q->ops->cl_ops->unbind_tcf(q, cl); |
1da177e4 LT |
133 | } |
134 | ||
135 | static inline void | |
136 | tcf_unbind_filter(struct tcf_proto *tp, struct tcf_result *r) | |
137 | { | |
34e3759c | 138 | struct Qdisc *q = tp->chain->block->q; |
1da177e4 LT |
139 | unsigned long cl; |
140 | ||
34e3759c JP |
141 | if (!q) |
142 | return; | |
1da177e4 | 143 | if ((cl = __cls_set_class(&r->class, 0)) != 0) |
34e3759c | 144 | q->ops->cl_ops->unbind_tcf(q, cl); |
1da177e4 LT |
145 | } |
146 | ||
fd2c3ef7 | 147 | struct tcf_exts { |
1da177e4 | 148 | #ifdef CONFIG_NET_CLS_ACT |
33be6271 | 149 | __u32 type; /* for backward compat(TCA_OLD_COMPAT) */ |
22dc13c8 WC |
150 | int nr_actions; |
151 | struct tc_action **actions; | |
1da177e4 | 152 | #endif |
5da57f42 WC |
153 | /* Map to export classifier specific extension TLV types to the |
154 | * generic extensions API. Unsupported extensions must be set to 0. | |
155 | */ | |
1da177e4 LT |
156 | int action; |
157 | int police; | |
158 | }; | |
159 | ||
b9a24bb7 | 160 | static inline int tcf_exts_init(struct tcf_exts *exts, int action, int police) |
33be6271 WC |
161 | { |
162 | #ifdef CONFIG_NET_CLS_ACT | |
5da57f42 | 163 | exts->type = 0; |
22dc13c8 WC |
164 | exts->nr_actions = 0; |
165 | exts->actions = kcalloc(TCA_ACT_MAX_PRIO, sizeof(struct tc_action *), | |
166 | GFP_KERNEL); | |
b9a24bb7 WC |
167 | if (!exts->actions) |
168 | return -ENOMEM; | |
33be6271 | 169 | #endif |
5da57f42 WC |
170 | exts->action = action; |
171 | exts->police = police; | |
b9a24bb7 | 172 | return 0; |
33be6271 WC |
173 | } |
174 | ||
22dc13c8 WC |
175 | static inline void tcf_exts_to_list(const struct tcf_exts *exts, |
176 | struct list_head *actions) | |
177 | { | |
178 | #ifdef CONFIG_NET_CLS_ACT | |
179 | int i; | |
180 | ||
181 | for (i = 0; i < exts->nr_actions; i++) { | |
182 | struct tc_action *a = exts->actions[i]; | |
183 | ||
fa5effe7 | 184 | list_add_tail(&a->list, actions); |
22dc13c8 WC |
185 | } |
186 | #endif | |
187 | } | |
188 | ||
d897a638 JK |
189 | static inline void |
190 | tcf_exts_stats_update(const struct tcf_exts *exts, | |
191 | u64 bytes, u64 packets, u64 lastuse) | |
192 | { | |
193 | #ifdef CONFIG_NET_CLS_ACT | |
194 | int i; | |
195 | ||
196 | preempt_disable(); | |
197 | ||
198 | for (i = 0; i < exts->nr_actions; i++) { | |
199 | struct tc_action *a = exts->actions[i]; | |
200 | ||
201 | tcf_action_stats_update(a, bytes, packets, lastuse); | |
202 | } | |
203 | ||
204 | preempt_enable(); | |
205 | #endif | |
206 | } | |
207 | ||
3bcc0cec JP |
208 | /** |
209 | * tcf_exts_has_actions - check if at least one action is present | |
210 | * @exts: tc filter extensions handle | |
211 | * | |
212 | * Returns true if at least one action is present. | |
213 | */ | |
214 | static inline bool tcf_exts_has_actions(struct tcf_exts *exts) | |
215 | { | |
2734437e | 216 | #ifdef CONFIG_NET_CLS_ACT |
3bcc0cec JP |
217 | return exts->nr_actions; |
218 | #else | |
219 | return false; | |
220 | #endif | |
221 | } | |
2734437e | 222 | |
3bcc0cec JP |
223 | /** |
224 | * tcf_exts_has_one_action - check if exactly one action is present | |
225 | * @exts: tc filter extensions handle | |
226 | * | |
227 | * Returns true if exactly one action is present. | |
228 | */ | |
229 | static inline bool tcf_exts_has_one_action(struct tcf_exts *exts) | |
230 | { | |
231 | #ifdef CONFIG_NET_CLS_ACT | |
232 | return exts->nr_actions == 1; | |
233 | #else | |
234 | return false; | |
235 | #endif | |
236 | } | |
2734437e | 237 | |
af69afc5 JP |
238 | /** |
239 | * tcf_exts_exec - execute tc filter extensions | |
240 | * @skb: socket buffer | |
241 | * @exts: tc filter extensions handle | |
242 | * @res: desired result | |
243 | * | |
af089e70 | 244 | * Executes all configured extensions. Returns TC_ACT_OK on a normal execution, |
af69afc5 JP |
245 | * a negative number if the filter must be considered unmatched or |
246 | * a positive action code (TC_ACT_*) which must be returned to the | |
247 | * underlying layer. | |
248 | */ | |
249 | static inline int | |
250 | tcf_exts_exec(struct sk_buff *skb, struct tcf_exts *exts, | |
251 | struct tcf_result *res) | |
252 | { | |
253 | #ifdef CONFIG_NET_CLS_ACT | |
ec1a9cca | 254 | return tcf_action_exec(skb, exts->actions, exts->nr_actions, res); |
af69afc5 | 255 | #endif |
af089e70 | 256 | return TC_ACT_OK; |
af69afc5 JP |
257 | } |
258 | ||
5c15257f JP |
259 | int tcf_exts_validate(struct net *net, struct tcf_proto *tp, |
260 | struct nlattr **tb, struct nlattr *rate_tlv, | |
2f7ef2f8 | 261 | struct tcf_exts *exts, bool ovr); |
18d0264f | 262 | void tcf_exts_destroy(struct tcf_exts *exts); |
9b0d4446 | 263 | void tcf_exts_change(struct tcf_exts *dst, struct tcf_exts *src); |
5da57f42 WC |
264 | int tcf_exts_dump(struct sk_buff *skb, struct tcf_exts *exts); |
265 | int tcf_exts_dump_stats(struct sk_buff *skb, struct tcf_exts *exts); | |
1da177e4 LT |
266 | |
267 | /** | |
268 | * struct tcf_pkt_info - packet information | |
269 | */ | |
fd2c3ef7 | 270 | struct tcf_pkt_info { |
1da177e4 LT |
271 | unsigned char * ptr; |
272 | int nexthdr; | |
273 | }; | |
274 | ||
275 | #ifdef CONFIG_NET_EMATCH | |
276 | ||
277 | struct tcf_ematch_ops; | |
278 | ||
279 | /** | |
280 | * struct tcf_ematch - extended match (ematch) | |
281 | * | |
282 | * @matchid: identifier to allow userspace to reidentify a match | |
283 | * @flags: flags specifying attributes and the relation to other matches | |
284 | * @ops: the operations lookup table of the corresponding ematch module | |
285 | * @datalen: length of the ematch specific configuration data | |
286 | * @data: ematch specific data | |
287 | */ | |
fd2c3ef7 | 288 | struct tcf_ematch { |
1da177e4 LT |
289 | struct tcf_ematch_ops * ops; |
290 | unsigned long data; | |
291 | unsigned int datalen; | |
292 | u16 matchid; | |
293 | u16 flags; | |
82a470f1 | 294 | struct net *net; |
1da177e4 LT |
295 | }; |
296 | ||
297 | static inline int tcf_em_is_container(struct tcf_ematch *em) | |
298 | { | |
299 | return !em->ops; | |
300 | } | |
301 | ||
302 | static inline int tcf_em_is_simple(struct tcf_ematch *em) | |
303 | { | |
304 | return em->flags & TCF_EM_SIMPLE; | |
305 | } | |
306 | ||
307 | static inline int tcf_em_is_inverted(struct tcf_ematch *em) | |
308 | { | |
309 | return em->flags & TCF_EM_INVERT; | |
310 | } | |
311 | ||
312 | static inline int tcf_em_last_match(struct tcf_ematch *em) | |
313 | { | |
314 | return (em->flags & TCF_EM_REL_MASK) == TCF_EM_REL_END; | |
315 | } | |
316 | ||
317 | static inline int tcf_em_early_end(struct tcf_ematch *em, int result) | |
318 | { | |
319 | if (tcf_em_last_match(em)) | |
320 | return 1; | |
321 | ||
322 | if (result == 0 && em->flags & TCF_EM_REL_AND) | |
323 | return 1; | |
324 | ||
325 | if (result != 0 && em->flags & TCF_EM_REL_OR) | |
326 | return 1; | |
327 | ||
328 | return 0; | |
329 | } | |
330 | ||
331 | /** | |
332 | * struct tcf_ematch_tree - ematch tree handle | |
333 | * | |
334 | * @hdr: ematch tree header supplied by userspace | |
335 | * @matches: array of ematches | |
336 | */ | |
fd2c3ef7 | 337 | struct tcf_ematch_tree { |
1da177e4 LT |
338 | struct tcf_ematch_tree_hdr hdr; |
339 | struct tcf_ematch * matches; | |
340 | ||
341 | }; | |
342 | ||
343 | /** | |
344 | * struct tcf_ematch_ops - ematch module operations | |
345 | * | |
346 | * @kind: identifier (kind) of this ematch module | |
347 | * @datalen: length of expected configuration data (optional) | |
348 | * @change: called during validation (optional) | |
349 | * @match: called during ematch tree evaluation, must return 1/0 | |
350 | * @destroy: called during destroyage (optional) | |
351 | * @dump: called during dumping process (optional) | |
352 | * @owner: owner, must be set to THIS_MODULE | |
353 | * @link: link to previous/next ematch module (internal use) | |
354 | */ | |
fd2c3ef7 | 355 | struct tcf_ematch_ops { |
1da177e4 LT |
356 | int kind; |
357 | int datalen; | |
82a470f1 | 358 | int (*change)(struct net *net, void *, |
1da177e4 LT |
359 | int, struct tcf_ematch *); |
360 | int (*match)(struct sk_buff *, struct tcf_ematch *, | |
361 | struct tcf_pkt_info *); | |
82a470f1 | 362 | void (*destroy)(struct tcf_ematch *); |
1da177e4 LT |
363 | int (*dump)(struct sk_buff *, struct tcf_ematch *); |
364 | struct module *owner; | |
365 | struct list_head link; | |
366 | }; | |
367 | ||
5c15257f JP |
368 | int tcf_em_register(struct tcf_ematch_ops *); |
369 | void tcf_em_unregister(struct tcf_ematch_ops *); | |
370 | int tcf_em_tree_validate(struct tcf_proto *, struct nlattr *, | |
371 | struct tcf_ematch_tree *); | |
82a470f1 | 372 | void tcf_em_tree_destroy(struct tcf_ematch_tree *); |
5c15257f JP |
373 | int tcf_em_tree_dump(struct sk_buff *, struct tcf_ematch_tree *, int); |
374 | int __tcf_em_tree_match(struct sk_buff *, struct tcf_ematch_tree *, | |
375 | struct tcf_pkt_info *); | |
1da177e4 | 376 | |
1da177e4 LT |
377 | /** |
378 | * tcf_em_tree_match - evaulate an ematch tree | |
379 | * | |
380 | * @skb: socket buffer of the packet in question | |
381 | * @tree: ematch tree to be used for evaluation | |
382 | * @info: packet information examined by classifier | |
383 | * | |
384 | * This function matches @skb against the ematch tree in @tree by going | |
385 | * through all ematches respecting their logic relations returning | |
386 | * as soon as the result is obvious. | |
387 | * | |
388 | * Returns 1 if the ematch tree as-one matches, no ematches are configured | |
389 | * or ematch is not enabled in the kernel, otherwise 0 is returned. | |
390 | */ | |
391 | static inline int tcf_em_tree_match(struct sk_buff *skb, | |
392 | struct tcf_ematch_tree *tree, | |
393 | struct tcf_pkt_info *info) | |
394 | { | |
395 | if (tree->hdr.nmatches) | |
396 | return __tcf_em_tree_match(skb, tree, info); | |
397 | else | |
398 | return 1; | |
399 | } | |
400 | ||
db3d99c0 PM |
401 | #define MODULE_ALIAS_TCF_EMATCH(kind) MODULE_ALIAS("ematch-kind-" __stringify(kind)) |
402 | ||
1da177e4 LT |
403 | #else /* CONFIG_NET_EMATCH */ |
404 | ||
fd2c3ef7 | 405 | struct tcf_ematch_tree { |
1da177e4 LT |
406 | }; |
407 | ||
408 | #define tcf_em_tree_validate(tp, tb, t) ((void)(t), 0) | |
82a470f1 | 409 | #define tcf_em_tree_destroy(t) do { (void)(t); } while(0) |
1da177e4 | 410 | #define tcf_em_tree_dump(skb, t, tlv) (0) |
1da177e4 LT |
411 | #define tcf_em_tree_match(skb, t, info) ((void)(info), 1) |
412 | ||
413 | #endif /* CONFIG_NET_EMATCH */ | |
414 | ||
415 | static inline unsigned char * tcf_get_base_ptr(struct sk_buff *skb, int layer) | |
416 | { | |
417 | switch (layer) { | |
418 | case TCF_LAYER_LINK: | |
419 | return skb->data; | |
420 | case TCF_LAYER_NETWORK: | |
d56f90a7 | 421 | return skb_network_header(skb); |
1da177e4 | 422 | case TCF_LAYER_TRANSPORT: |
9c70220b | 423 | return skb_transport_header(skb); |
1da177e4 LT |
424 | } |
425 | ||
426 | return NULL; | |
427 | } | |
428 | ||
eddc9ec5 ACM |
429 | static inline int tcf_valid_offset(const struct sk_buff *skb, |
430 | const unsigned char *ptr, const int len) | |
1da177e4 | 431 | { |
da521b2c DM |
432 | return likely((ptr + len) <= skb_tail_pointer(skb) && |
433 | ptr >= skb->head && | |
434 | (ptr <= (ptr + len))); | |
1da177e4 LT |
435 | } |
436 | ||
437 | #ifdef CONFIG_NET_CLS_IND | |
0eeb8ffc DL |
438 | #include <net/net_namespace.h> |
439 | ||
1da177e4 | 440 | static inline int |
2519a602 | 441 | tcf_change_indev(struct net *net, struct nlattr *indev_tlv) |
1da177e4 | 442 | { |
2519a602 WC |
443 | char indev[IFNAMSIZ]; |
444 | struct net_device *dev; | |
445 | ||
add93b61 | 446 | if (nla_strlcpy(indev, indev_tlv, IFNAMSIZ) >= IFNAMSIZ) |
1da177e4 | 447 | return -EINVAL; |
2519a602 WC |
448 | dev = __dev_get_by_name(net, indev); |
449 | if (!dev) | |
450 | return -ENODEV; | |
451 | return dev->ifindex; | |
1da177e4 LT |
452 | } |
453 | ||
2519a602 WC |
454 | static inline bool |
455 | tcf_match_indev(struct sk_buff *skb, int ifindex) | |
1da177e4 | 456 | { |
2519a602 WC |
457 | if (!ifindex) |
458 | return true; | |
459 | if (!skb->skb_iif) | |
460 | return false; | |
461 | return ifindex == skb->skb_iif; | |
1da177e4 LT |
462 | } |
463 | #endif /* CONFIG_NET_CLS_IND */ | |
464 | ||
717503b9 JP |
465 | int tc_setup_cb_call(struct tcf_exts *exts, enum tc_setup_type type, |
466 | void *type_data, bool err_stop); | |
467 | ||
8c4083b3 JP |
468 | enum tc_block_command { |
469 | TC_BLOCK_BIND, | |
470 | TC_BLOCK_UNBIND, | |
471 | }; | |
472 | ||
473 | struct tc_block_offload { | |
474 | enum tc_block_command command; | |
475 | enum tcf_block_binder_type binder_type; | |
476 | struct tcf_block *block; | |
477 | }; | |
478 | ||
5fd9fc4e | 479 | struct tc_cls_common_offload { |
5fd9fc4e JP |
480 | u32 chain_index; |
481 | __be16 protocol; | |
d7c1c8d2 | 482 | u32 prio; |
7690f2a5 | 483 | u32 classid; |
5fd9fc4e JP |
484 | }; |
485 | ||
486 | static inline void | |
487 | tc_cls_common_offload_init(struct tc_cls_common_offload *cls_common, | |
488 | const struct tcf_proto *tp) | |
489 | { | |
5fd9fc4e JP |
490 | cls_common->chain_index = tp->chain->index; |
491 | cls_common->protocol = tp->protocol; | |
d7c1c8d2 | 492 | cls_common->prio = tp->prio; |
7690f2a5 | 493 | cls_common->classid = tp->classid; |
5fd9fc4e JP |
494 | } |
495 | ||
a1b7c5fd JF |
496 | struct tc_cls_u32_knode { |
497 | struct tcf_exts *exts; | |
e014860e | 498 | struct tc_u32_sel *sel; |
a1b7c5fd JF |
499 | u32 handle; |
500 | u32 val; | |
501 | u32 mask; | |
502 | u32 link_handle; | |
e014860e | 503 | u8 fshift; |
a1b7c5fd JF |
504 | }; |
505 | ||
506 | struct tc_cls_u32_hnode { | |
507 | u32 handle; | |
508 | u32 prio; | |
509 | unsigned int divisor; | |
510 | }; | |
511 | ||
512 | enum tc_clsu32_command { | |
513 | TC_CLSU32_NEW_KNODE, | |
514 | TC_CLSU32_REPLACE_KNODE, | |
515 | TC_CLSU32_DELETE_KNODE, | |
516 | TC_CLSU32_NEW_HNODE, | |
517 | TC_CLSU32_REPLACE_HNODE, | |
518 | TC_CLSU32_DELETE_HNODE, | |
519 | }; | |
520 | ||
521 | struct tc_cls_u32_offload { | |
5fd9fc4e | 522 | struct tc_cls_common_offload common; |
a1b7c5fd JF |
523 | /* knode values */ |
524 | enum tc_clsu32_command command; | |
525 | union { | |
526 | struct tc_cls_u32_knode knode; | |
527 | struct tc_cls_u32_hnode hnode; | |
528 | }; | |
529 | }; | |
530 | ||
7b06e8ae | 531 | static inline bool tc_can_offload(const struct net_device *dev) |
6843e7a2 | 532 | { |
2b6ab0d3 JF |
533 | if (!(dev->features & NETIF_F_HW_TC)) |
534 | return false; | |
9e8ce79c JF |
535 | if (!dev->netdev_ops->ndo_setup_tc) |
536 | return false; | |
9e8ce79c | 537 | return true; |
6843e7a2 JF |
538 | } |
539 | ||
55330f05 HHZ |
540 | static inline bool tc_skip_hw(u32 flags) |
541 | { | |
542 | return (flags & TCA_CLS_FLAGS_SKIP_HW) ? true : false; | |
543 | } | |
544 | ||
7b06e8ae | 545 | static inline bool tc_should_offload(const struct net_device *dev, u32 flags) |
55330f05 HHZ |
546 | { |
547 | if (tc_skip_hw(flags)) | |
548 | return false; | |
7b06e8ae | 549 | return tc_can_offload(dev); |
55330f05 HHZ |
550 | } |
551 | ||
d34e3e18 SS |
552 | static inline bool tc_skip_sw(u32 flags) |
553 | { | |
554 | return (flags & TCA_CLS_FLAGS_SKIP_SW) ? true : false; | |
555 | } | |
556 | ||
557 | /* SKIP_HW and SKIP_SW are mutually exclusive flags. */ | |
558 | static inline bool tc_flags_valid(u32 flags) | |
559 | { | |
560 | if (flags & ~(TCA_CLS_FLAGS_SKIP_HW | TCA_CLS_FLAGS_SKIP_SW)) | |
561 | return false; | |
562 | ||
563 | if (!(flags ^ (TCA_CLS_FLAGS_SKIP_HW | TCA_CLS_FLAGS_SKIP_SW))) | |
564 | return false; | |
565 | ||
566 | return true; | |
567 | } | |
568 | ||
e696028a OG |
569 | static inline bool tc_in_hw(u32 flags) |
570 | { | |
571 | return (flags & TCA_CLS_FLAGS_IN_HW) ? true : false; | |
572 | } | |
573 | ||
5b33f488 AV |
574 | enum tc_fl_command { |
575 | TC_CLSFLOWER_REPLACE, | |
576 | TC_CLSFLOWER_DESTROY, | |
10cbc684 | 577 | TC_CLSFLOWER_STATS, |
5b33f488 AV |
578 | }; |
579 | ||
580 | struct tc_cls_flower_offload { | |
5fd9fc4e | 581 | struct tc_cls_common_offload common; |
5b33f488 | 582 | enum tc_fl_command command; |
8208d21b | 583 | unsigned long cookie; |
5b33f488 AV |
584 | struct flow_dissector *dissector; |
585 | struct fl_flow_key *mask; | |
586 | struct fl_flow_key *key; | |
587 | struct tcf_exts *exts; | |
588 | }; | |
589 | ||
b87f7936 YG |
590 | enum tc_matchall_command { |
591 | TC_CLSMATCHALL_REPLACE, | |
592 | TC_CLSMATCHALL_DESTROY, | |
593 | }; | |
594 | ||
595 | struct tc_cls_matchall_offload { | |
5fd9fc4e | 596 | struct tc_cls_common_offload common; |
b87f7936 YG |
597 | enum tc_matchall_command command; |
598 | struct tcf_exts *exts; | |
599 | unsigned long cookie; | |
600 | }; | |
601 | ||
332ae8e2 JK |
602 | enum tc_clsbpf_command { |
603 | TC_CLSBPF_ADD, | |
604 | TC_CLSBPF_REPLACE, | |
605 | TC_CLSBPF_DESTROY, | |
68d64063 | 606 | TC_CLSBPF_STATS, |
332ae8e2 JK |
607 | }; |
608 | ||
609 | struct tc_cls_bpf_offload { | |
5fd9fc4e | 610 | struct tc_cls_common_offload common; |
332ae8e2 JK |
611 | enum tc_clsbpf_command command; |
612 | struct tcf_exts *exts; | |
613 | struct bpf_prog *prog; | |
614 | const char *name; | |
615 | bool exts_integrated; | |
0d01d45f | 616 | u32 gen_flags; |
332ae8e2 JK |
617 | }; |
618 | ||
4e8b86c0 AN |
619 | struct tc_mqprio_qopt_offload { |
620 | /* struct tc_mqprio_qopt must always be the first element */ | |
621 | struct tc_mqprio_qopt qopt; | |
622 | u16 mode; | |
623 | u16 shaper; | |
624 | u32 flags; | |
625 | u64 min_rate[TC_QOPT_MAX_QUEUE]; | |
626 | u64 max_rate[TC_QOPT_MAX_QUEUE]; | |
627 | }; | |
1045ba77 JHS |
628 | |
629 | /* This structure holds cookie structure that is passed from user | |
630 | * to the kernel for actions and classifiers | |
631 | */ | |
632 | struct tc_cookie { | |
633 | u8 *data; | |
634 | u32 len; | |
635 | }; | |
1da177e4 | 636 | #endif |