1 #ifndef _NET_FLOW_OFFLOAD_H
2 #define _NET_FLOW_OFFLOAD_H
3
4 #include <linux/kernel.h>
5 #include <linux/list.h>
6 #include <linux/netlink.h>
7 #include <net/flow_dissector.h>
8
9 struct flow_match {
10 struct flow_dissector *dissector;
11 void *mask;
12 void *key;
13 };
14
15 struct flow_match_meta {
16 struct flow_dissector_key_meta *key, *mask;
17 };
18
19 struct flow_match_basic {
20 struct flow_dissector_key_basic *key, *mask;
21 };
22
23 struct flow_match_control {
24 struct flow_dissector_key_control *key, *mask;
25 };
26
27 struct flow_match_eth_addrs {
28 struct flow_dissector_key_eth_addrs *key, *mask;
29 };
30
31 struct flow_match_vlan {
32 struct flow_dissector_key_vlan *key, *mask;
33 };
34
35 struct flow_match_arp {
36 struct flow_dissector_key_arp *key, *mask;
37 };
38
39 struct flow_match_ipv4_addrs {
40 struct flow_dissector_key_ipv4_addrs *key, *mask;
41 };
42
43 struct flow_match_ipv6_addrs {
44 struct flow_dissector_key_ipv6_addrs *key, *mask;
45 };
46
47 struct flow_match_ip {
48 struct flow_dissector_key_ip *key, *mask;
49 };
50
51 struct flow_match_ports {
52 struct flow_dissector_key_ports *key, *mask;
53 };
54
55 struct flow_match_ports_range {
56 struct flow_dissector_key_ports_range *key, *mask;
57 };
58
59 struct flow_match_icmp {
60 struct flow_dissector_key_icmp *key, *mask;
61 };
62
63 struct flow_match_tcp {
64 struct flow_dissector_key_tcp *key, *mask;
65 };
66
67 struct flow_match_mpls {
68 struct flow_dissector_key_mpls *key, *mask;
69 };
70
71 struct flow_match_enc_keyid {
72 struct flow_dissector_key_keyid *key, *mask;
73 };
74
75 struct flow_match_enc_opts {
76 struct flow_dissector_key_enc_opts *key, *mask;
77 };
78
79 struct flow_match_ct {
80 struct flow_dissector_key_ct *key, *mask;
81 };
82
83 struct flow_match_pppoe {
84 struct flow_dissector_key_pppoe *key, *mask;
85 };
86
87 struct flow_match_l2tpv3 {
88 struct flow_dissector_key_l2tpv3 *key, *mask;
89 };
90
91 struct flow_rule;
92
93 void flow_rule_match_meta(const struct flow_rule *rule,
94 struct flow_match_meta *out);
95 void flow_rule_match_basic(const struct flow_rule *rule,
96 struct flow_match_basic *out);
97 void flow_rule_match_control(const struct flow_rule *rule,
98 struct flow_match_control *out);
99 void flow_rule_match_eth_addrs(const struct flow_rule *rule,
100 struct flow_match_eth_addrs *out);
101 void flow_rule_match_vlan(const struct flow_rule *rule,
102 struct flow_match_vlan *out);
103 void flow_rule_match_cvlan(const struct flow_rule *rule,
104 struct flow_match_vlan *out);
105 void flow_rule_match_arp(const struct flow_rule *rule,
106 struct flow_match_arp *out);
107 void flow_rule_match_ipv4_addrs(const struct flow_rule *rule,
108 struct flow_match_ipv4_addrs *out);
109 void flow_rule_match_ipv6_addrs(const struct flow_rule *rule,
110 struct flow_match_ipv6_addrs *out);
111 void flow_rule_match_ip(const struct flow_rule *rule,
112 struct flow_match_ip *out);
113 void flow_rule_match_ports(const struct flow_rule *rule,
114 struct flow_match_ports *out);
115 void flow_rule_match_ports_range(const struct flow_rule *rule,
116 struct flow_match_ports_range *out);
117 void flow_rule_match_tcp(const struct flow_rule *rule,
118 struct flow_match_tcp *out);
119 void flow_rule_match_icmp(const struct flow_rule *rule,
120 struct flow_match_icmp *out);
121 void flow_rule_match_mpls(const struct flow_rule *rule,
122 struct flow_match_mpls *out);
123 void flow_rule_match_enc_control(const struct flow_rule *rule,
124 struct flow_match_control *out);
125 void flow_rule_match_enc_ipv4_addrs(const struct flow_rule *rule,
126 struct flow_match_ipv4_addrs *out);
127 void flow_rule_match_enc_ipv6_addrs(const struct flow_rule *rule,
128 struct flow_match_ipv6_addrs *out);
129 void flow_rule_match_enc_ip(const struct flow_rule *rule,
130 struct flow_match_ip *out);
131 void flow_rule_match_enc_ports(const struct flow_rule *rule,
132 struct flow_match_ports *out);
133 void flow_rule_match_enc_keyid(const struct flow_rule *rule,
134 struct flow_match_enc_keyid *out);
135 void flow_rule_match_enc_opts(const struct flow_rule *rule,
136 struct flow_match_enc_opts *out);
137 void flow_rule_match_ct(const struct flow_rule *rule,
138 struct flow_match_ct *out);
139 void flow_rule_match_pppoe(const struct flow_rule *rule,
140 struct flow_match_pppoe *out);
141 void flow_rule_match_l2tpv3(const struct flow_rule *rule,
142 struct flow_match_l2tpv3 *out);
143
144 enum flow_action_id {
145 FLOW_ACTION_ACCEPT = 0,
146 FLOW_ACTION_DROP,
147 FLOW_ACTION_TRAP,
148 FLOW_ACTION_GOTO,
149 FLOW_ACTION_REDIRECT,
150 FLOW_ACTION_MIRRED,
151 FLOW_ACTION_REDIRECT_INGRESS,
152 FLOW_ACTION_MIRRED_INGRESS,
153 FLOW_ACTION_VLAN_PUSH,
154 FLOW_ACTION_VLAN_POP,
155 FLOW_ACTION_VLAN_MANGLE,
156 FLOW_ACTION_TUNNEL_ENCAP,
157 FLOW_ACTION_TUNNEL_DECAP,
158 FLOW_ACTION_MANGLE,
159 FLOW_ACTION_ADD,
160 FLOW_ACTION_CSUM,
161 FLOW_ACTION_MARK,
162 FLOW_ACTION_PTYPE,
163 FLOW_ACTION_PRIORITY,
164 FLOW_ACTION_RX_QUEUE_MAPPING,
165 FLOW_ACTION_WAKE,
166 FLOW_ACTION_QUEUE,
167 FLOW_ACTION_SAMPLE,
168 FLOW_ACTION_POLICE,
169 FLOW_ACTION_CT,
170 FLOW_ACTION_CT_METADATA,
171 FLOW_ACTION_MPLS_PUSH,
172 FLOW_ACTION_MPLS_POP,
173 FLOW_ACTION_MPLS_MANGLE,
174 FLOW_ACTION_GATE,
175 FLOW_ACTION_PPPOE_PUSH,
176 FLOW_ACTION_JUMP,
177 FLOW_ACTION_PIPE,
178 FLOW_ACTION_VLAN_PUSH_ETH,
179 FLOW_ACTION_VLAN_POP_ETH,
180 FLOW_ACTION_CONTINUE,
181 NUM_FLOW_ACTIONS,
182 };
183
184 /* This is mirroring enum pedit_header_type definition for easy mapping between
185 * tc pedit action. Legacy TCA_PEDIT_KEY_EX_HDR_TYPE_NETWORK is mapped to
186 * FLOW_ACT_MANGLE_UNSPEC, which is supported by no driver.
187 */
188 enum flow_action_mangle_base {
189 FLOW_ACT_MANGLE_UNSPEC = 0,
190 FLOW_ACT_MANGLE_HDR_TYPE_ETH,
191 FLOW_ACT_MANGLE_HDR_TYPE_IP4,
192 FLOW_ACT_MANGLE_HDR_TYPE_IP6,
193 FLOW_ACT_MANGLE_HDR_TYPE_TCP,
194 FLOW_ACT_MANGLE_HDR_TYPE_UDP,
195 };
196
197 enum flow_action_hw_stats_bit {
198 FLOW_ACTION_HW_STATS_IMMEDIATE_BIT,
199 FLOW_ACTION_HW_STATS_DELAYED_BIT,
200 FLOW_ACTION_HW_STATS_DISABLED_BIT,
201
202 FLOW_ACTION_HW_STATS_NUM_BITS
203 };
204
205 enum flow_action_hw_stats {
206 FLOW_ACTION_HW_STATS_IMMEDIATE =
207 BIT(FLOW_ACTION_HW_STATS_IMMEDIATE_BIT),
208 FLOW_ACTION_HW_STATS_DELAYED = BIT(FLOW_ACTION_HW_STATS_DELAYED_BIT),
209 FLOW_ACTION_HW_STATS_ANY = FLOW_ACTION_HW_STATS_IMMEDIATE |
210 FLOW_ACTION_HW_STATS_DELAYED,
211 FLOW_ACTION_HW_STATS_DISABLED =
212 BIT(FLOW_ACTION_HW_STATS_DISABLED_BIT),
213 FLOW_ACTION_HW_STATS_DONT_CARE = BIT(FLOW_ACTION_HW_STATS_NUM_BITS) - 1,
214 };
215
216 typedef void (*action_destr)(void *priv);
217
218 struct flow_action_cookie {
219 u32 cookie_len;
220 u8 cookie[];
221 };
222
223 struct flow_action_cookie *flow_action_cookie_create(void *data,
224 unsigned int len,
225 gfp_t gfp);
226 void flow_action_cookie_destroy(struct flow_action_cookie *cookie);
227
228 struct flow_action_entry {
229 enum flow_action_id id;
230 u32 hw_index;
231 unsigned long cookie;
232 u64 miss_cookie;
233 enum flow_action_hw_stats hw_stats;
234 action_destr destructor;
235 void *destructor_priv;
236 union {
237 u32 chain_index; /* FLOW_ACTION_GOTO */
238 struct net_device *dev; /* FLOW_ACTION_REDIRECT */
239 struct { /* FLOW_ACTION_VLAN */
240 u16 vid;
241 __be16 proto;
242 u8 prio;
243 } vlan;
244 struct { /* FLOW_ACTION_VLAN_PUSH_ETH */
245 unsigned char dst[ETH_ALEN];
246 unsigned char src[ETH_ALEN];
247 } vlan_push_eth;
248 struct { /* FLOW_ACTION_MANGLE */
249 /* FLOW_ACTION_ADD */
250 enum flow_action_mangle_base htype;
251 u32 offset;
252 u32 mask;
253 u32 val;
254 } mangle;
255 struct ip_tunnel_info *tunnel; /* FLOW_ACTION_TUNNEL_ENCAP */
256 u32 csum_flags; /* FLOW_ACTION_CSUM */
257 u32 mark; /* FLOW_ACTION_MARK */
258 u16 ptype; /* FLOW_ACTION_PTYPE */
259 u16 rx_queue; /* FLOW_ACTION_RX_QUEUE_MAPPING */
260 u32 priority; /* FLOW_ACTION_PRIORITY */
261 struct { /* FLOW_ACTION_QUEUE */
262 u32 ctx;
263 u32 index;
264 u8 vf;
265 } queue;
266 struct { /* FLOW_ACTION_SAMPLE */
267 struct psample_group *psample_group;
268 u32 rate;
269 u32 trunc_size;
270 bool truncate;
271 } sample;
272 struct { /* FLOW_ACTION_POLICE */
273 u32 burst;
274 u64 rate_bytes_ps;
275 u64 peakrate_bytes_ps;
276 u32 avrate;
277 u16 overhead;
278 u64 burst_pkt;
279 u64 rate_pkt_ps;
280 u32 mtu;
281 struct {
282 enum flow_action_id act_id;
283 u32 extval;
284 } exceed, notexceed;
285 } police;
286 struct { /* FLOW_ACTION_CT */
287 int action;
288 u16 zone;
289 struct nf_flowtable *flow_table;
290 } ct;
291 struct {
292 unsigned long cookie;
293 u32 mark;
294 u32 labels[4];
295 bool orig_dir;
296 } ct_metadata;
297 struct { /* FLOW_ACTION_MPLS_PUSH */
298 u32 label;
299 __be16 proto;
300 u8 tc;
301 u8 bos;
302 u8 ttl;
303 } mpls_push;
304 struct { /* FLOW_ACTION_MPLS_POP */
305 __be16 proto;
306 } mpls_pop;
307 struct { /* FLOW_ACTION_MPLS_MANGLE */
308 u32 label;
309 u8 tc;
310 u8 bos;
311 u8 ttl;
312 } mpls_mangle;
313 struct {
314 s32 prio;
315 u64 basetime;
316 u64 cycletime;
317 u64 cycletimeext;
318 u32 num_entries;
319 struct action_gate_entry *entries;
320 } gate;
321 struct { /* FLOW_ACTION_PPPOE_PUSH */
322 u16 sid;
323 } pppoe;
324 };
325 struct flow_action_cookie *user_cookie; /* user defined action cookie */
326 };
327
328 struct flow_action {
329 unsigned int num_entries;
330 struct flow_action_entry entries[];
331 };
332
flow_action_has_entries(const struct flow_action * action)333 static inline bool flow_action_has_entries(const struct flow_action *action)
334 {
335 return action->num_entries;
336 }
337
338 /**
339 * flow_offload_has_one_action() - check if exactly one action is present
340 * @action: tc filter flow offload action
341 *
342 * Returns true if exactly one action is present.
343 */
flow_offload_has_one_action(const struct flow_action * action)344 static inline bool flow_offload_has_one_action(const struct flow_action *action)
345 {
346 return action->num_entries == 1;
347 }
348
flow_action_is_last_entry(const struct flow_action * action,const struct flow_action_entry * entry)349 static inline bool flow_action_is_last_entry(const struct flow_action *action,
350 const struct flow_action_entry *entry)
351 {
352 return entry == &action->entries[action->num_entries - 1];
353 }
354
355 #define flow_action_for_each(__i, __act, __actions) \
356 for (__i = 0, __act = &(__actions)->entries[0]; \
357 __i < (__actions)->num_entries; \
358 __act = &(__actions)->entries[++__i])
359
360 static inline bool
flow_action_mixed_hw_stats_check(const struct flow_action * action,struct netlink_ext_ack * extack)361 flow_action_mixed_hw_stats_check(const struct flow_action *action,
362 struct netlink_ext_ack *extack)
363 {
364 const struct flow_action_entry *action_entry;
365 u8 last_hw_stats;
366 int i;
367
368 if (flow_offload_has_one_action(action))
369 return true;
370
371 flow_action_for_each(i, action_entry, action) {
372 if (i && action_entry->hw_stats != last_hw_stats) {
373 NL_SET_ERR_MSG_MOD(extack, "Mixing HW stats types for actions is not supported");
374 return false;
375 }
376 last_hw_stats = action_entry->hw_stats;
377 }
378 return true;
379 }
380
381 static inline const struct flow_action_entry *
flow_action_first_entry_get(const struct flow_action * action)382 flow_action_first_entry_get(const struct flow_action *action)
383 {
384 WARN_ON(!flow_action_has_entries(action));
385 return &action->entries[0];
386 }
387
388 static inline bool
__flow_action_hw_stats_check(const struct flow_action * action,struct netlink_ext_ack * extack,bool check_allow_bit,enum flow_action_hw_stats_bit allow_bit)389 __flow_action_hw_stats_check(const struct flow_action *action,
390 struct netlink_ext_ack *extack,
391 bool check_allow_bit,
392 enum flow_action_hw_stats_bit allow_bit)
393 {
394 const struct flow_action_entry *action_entry;
395
396 if (!flow_action_has_entries(action))
397 return true;
398 if (!flow_action_mixed_hw_stats_check(action, extack))
399 return false;
400
401 action_entry = flow_action_first_entry_get(action);
402
403 /* Zero is not a legal value for hw_stats, catch anyone passing it */
404 WARN_ON_ONCE(!action_entry->hw_stats);
405
406 if (!check_allow_bit &&
407 ~action_entry->hw_stats & FLOW_ACTION_HW_STATS_ANY) {
408 NL_SET_ERR_MSG_MOD(extack, "Driver supports only default HW stats type \"any\"");
409 return false;
410 } else if (check_allow_bit &&
411 !(action_entry->hw_stats & BIT(allow_bit))) {
412 NL_SET_ERR_MSG_MOD(extack, "Driver does not support selected HW stats type");
413 return false;
414 }
415 return true;
416 }
417
418 static inline bool
flow_action_hw_stats_check(const struct flow_action * action,struct netlink_ext_ack * extack,enum flow_action_hw_stats_bit allow_bit)419 flow_action_hw_stats_check(const struct flow_action *action,
420 struct netlink_ext_ack *extack,
421 enum flow_action_hw_stats_bit allow_bit)
422 {
423 return __flow_action_hw_stats_check(action, extack, true, allow_bit);
424 }
425
426 static inline bool
flow_action_basic_hw_stats_check(const struct flow_action * action,struct netlink_ext_ack * extack)427 flow_action_basic_hw_stats_check(const struct flow_action *action,
428 struct netlink_ext_ack *extack)
429 {
430 return __flow_action_hw_stats_check(action, extack, false, 0);
431 }
432
433 struct flow_rule {
434 struct flow_match match;
435 struct flow_action action;
436 };
437
438 struct flow_rule *flow_rule_alloc(unsigned int num_actions);
439
flow_rule_match_key(const struct flow_rule * rule,enum flow_dissector_key_id key)440 static inline bool flow_rule_match_key(const struct flow_rule *rule,
441 enum flow_dissector_key_id key)
442 {
443 return dissector_uses_key(rule->match.dissector, key);
444 }
445
446 struct flow_stats {
447 u64 pkts;
448 u64 bytes;
449 u64 drops;
450 u64 lastused;
451 enum flow_action_hw_stats used_hw_stats;
452 bool used_hw_stats_valid;
453 };
454
flow_stats_update(struct flow_stats * flow_stats,u64 bytes,u64 pkts,u64 drops,u64 lastused,enum flow_action_hw_stats used_hw_stats)455 static inline void flow_stats_update(struct flow_stats *flow_stats,
456 u64 bytes, u64 pkts,
457 u64 drops, u64 lastused,
458 enum flow_action_hw_stats used_hw_stats)
459 {
460 flow_stats->pkts += pkts;
461 flow_stats->bytes += bytes;
462 flow_stats->drops += drops;
463 flow_stats->lastused = max_t(u64, flow_stats->lastused, lastused);
464
465 /* The driver should pass value with a maximum of one bit set.
466 * Passing FLOW_ACTION_HW_STATS_ANY is invalid.
467 */
468 WARN_ON(used_hw_stats == FLOW_ACTION_HW_STATS_ANY);
469 flow_stats->used_hw_stats |= used_hw_stats;
470 flow_stats->used_hw_stats_valid = true;
471 }
472
473 enum flow_block_command {
474 FLOW_BLOCK_BIND,
475 FLOW_BLOCK_UNBIND,
476 };
477
478 enum flow_block_binder_type {
479 FLOW_BLOCK_BINDER_TYPE_UNSPEC,
480 FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS,
481 FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS,
482 FLOW_BLOCK_BINDER_TYPE_RED_EARLY_DROP,
483 FLOW_BLOCK_BINDER_TYPE_RED_MARK,
484 };
485
486 struct flow_block {
487 struct list_head cb_list;
488 };
489
490 struct netlink_ext_ack;
491
492 struct flow_block_offload {
493 enum flow_block_command command;
494 enum flow_block_binder_type binder_type;
495 bool block_shared;
496 bool unlocked_driver_cb;
497 struct net *net;
498 struct flow_block *block;
499 struct list_head cb_list;
500 struct list_head *driver_block_list;
501 struct netlink_ext_ack *extack;
502 struct Qdisc *sch;
503 struct list_head *cb_list_head;
504 };
505
506 enum tc_setup_type;
507 typedef int flow_setup_cb_t(enum tc_setup_type type, void *type_data,
508 void *cb_priv);
509
510 struct flow_block_cb;
511
512 struct flow_block_indr {
513 struct list_head list;
514 struct net_device *dev;
515 struct Qdisc *sch;
516 enum flow_block_binder_type binder_type;
517 void *data;
518 void *cb_priv;
519 void (*cleanup)(struct flow_block_cb *block_cb);
520 };
521
522 struct flow_block_cb {
523 struct list_head driver_list;
524 struct list_head list;
525 flow_setup_cb_t *cb;
526 void *cb_ident;
527 void *cb_priv;
528 void (*release)(void *cb_priv);
529 struct flow_block_indr indr;
530 unsigned int refcnt;
531 };
532
533 struct flow_block_cb *flow_block_cb_alloc(flow_setup_cb_t *cb,
534 void *cb_ident, void *cb_priv,
535 void (*release)(void *cb_priv));
536 struct flow_block_cb *flow_indr_block_cb_alloc(flow_setup_cb_t *cb,
537 void *cb_ident, void *cb_priv,
538 void (*release)(void *cb_priv),
539 struct flow_block_offload *bo,
540 struct net_device *dev,
541 struct Qdisc *sch, void *data,
542 void *indr_cb_priv,
543 void (*cleanup)(struct flow_block_cb *block_cb));
544 void flow_block_cb_free(struct flow_block_cb *block_cb);
545
546 struct flow_block_cb *flow_block_cb_lookup(struct flow_block *block,
547 flow_setup_cb_t *cb, void *cb_ident);
548
549 void *flow_block_cb_priv(struct flow_block_cb *block_cb);
550 void flow_block_cb_incref(struct flow_block_cb *block_cb);
551 unsigned int flow_block_cb_decref(struct flow_block_cb *block_cb);
552
flow_block_cb_add(struct flow_block_cb * block_cb,struct flow_block_offload * offload)553 static inline void flow_block_cb_add(struct flow_block_cb *block_cb,
554 struct flow_block_offload *offload)
555 {
556 list_add_tail(&block_cb->list, &offload->cb_list);
557 }
558
flow_block_cb_remove(struct flow_block_cb * block_cb,struct flow_block_offload * offload)559 static inline void flow_block_cb_remove(struct flow_block_cb *block_cb,
560 struct flow_block_offload *offload)
561 {
562 list_move(&block_cb->list, &offload->cb_list);
563 }
564
flow_indr_block_cb_remove(struct flow_block_cb * block_cb,struct flow_block_offload * offload)565 static inline void flow_indr_block_cb_remove(struct flow_block_cb *block_cb,
566 struct flow_block_offload *offload)
567 {
568 list_del(&block_cb->indr.list);
569 list_move(&block_cb->list, &offload->cb_list);
570 }
571
572 bool flow_block_cb_is_busy(flow_setup_cb_t *cb, void *cb_ident,
573 struct list_head *driver_block_list);
574
575 int flow_block_cb_setup_simple(struct flow_block_offload *f,
576 struct list_head *driver_list,
577 flow_setup_cb_t *cb,
578 void *cb_ident, void *cb_priv, bool ingress_only);
579
580 enum flow_cls_command {
581 FLOW_CLS_REPLACE,
582 FLOW_CLS_DESTROY,
583 FLOW_CLS_STATS,
584 FLOW_CLS_TMPLT_CREATE,
585 FLOW_CLS_TMPLT_DESTROY,
586 };
587
588 struct flow_cls_common_offload {
589 u32 chain_index;
590 __be16 protocol;
591 u32 prio;
592 struct netlink_ext_ack *extack;
593 };
594
595 struct flow_cls_offload {
596 struct flow_cls_common_offload common;
597 enum flow_cls_command command;
598 bool use_act_stats;
599 unsigned long cookie;
600 struct flow_rule *rule;
601 struct flow_stats stats;
602 u32 classid;
603 };
604
605 enum offload_act_command {
606 FLOW_ACT_REPLACE,
607 FLOW_ACT_DESTROY,
608 FLOW_ACT_STATS,
609 };
610
611 struct flow_offload_action {
612 struct netlink_ext_ack *extack; /* NULL in FLOW_ACT_STATS process*/
613 enum offload_act_command command;
614 enum flow_action_id id;
615 u32 index;
616 unsigned long cookie;
617 struct flow_stats stats;
618 struct flow_action action;
619 };
620
621 struct flow_offload_action *offload_action_alloc(unsigned int num_actions);
622
623 static inline struct flow_rule *
flow_cls_offload_flow_rule(struct flow_cls_offload * flow_cmd)624 flow_cls_offload_flow_rule(struct flow_cls_offload *flow_cmd)
625 {
626 return flow_cmd->rule;
627 }
628
flow_block_init(struct flow_block * flow_block)629 static inline void flow_block_init(struct flow_block *flow_block)
630 {
631 INIT_LIST_HEAD(&flow_block->cb_list);
632 }
633
634 typedef int flow_indr_block_bind_cb_t(struct net_device *dev, struct Qdisc *sch, void *cb_priv,
635 enum tc_setup_type type, void *type_data,
636 void *data,
637 void (*cleanup)(struct flow_block_cb *block_cb));
638
639 int flow_indr_dev_register(flow_indr_block_bind_cb_t *cb, void *cb_priv);
640 void flow_indr_dev_unregister(flow_indr_block_bind_cb_t *cb, void *cb_priv,
641 void (*release)(void *cb_priv));
642 int flow_indr_dev_setup_offload(struct net_device *dev, struct Qdisc *sch,
643 enum tc_setup_type type, void *data,
644 struct flow_block_offload *bo,
645 void (*cleanup)(struct flow_block_cb *block_cb));
646 bool flow_indr_dev_exists(void);
647
648 #endif /* _NET_FLOW_OFFLOAD_H */
649