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[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / net / sch_generic.h
1 #ifndef __NET_SCHED_GENERIC_H
2 #define __NET_SCHED_GENERIC_H
3
4 #include <linux/netdevice.h>
5 #include <linux/types.h>
6 #include <linux/rcupdate.h>
7 #include <linux/pkt_sched.h>
8 #include <linux/pkt_cls.h>
9 #include <net/gen_stats.h>
10 #include <net/rtnetlink.h>
11
12 struct Qdisc_ops;
13 struct qdisc_walker;
14 struct tcf_walker;
15 struct module;
16
17 struct qdisc_rate_table {
18 struct tc_ratespec rate;
19 u32 data[256];
20 struct qdisc_rate_table *next;
21 int refcnt;
22 };
23
24 enum qdisc_state_t {
25 __QDISC_STATE_SCHED,
26 __QDISC_STATE_DEACTIVATED,
27 __QDISC_STATE_THROTTLED,
28 };
29
30 /*
31 * following bits are only changed while qdisc lock is held
32 */
33 enum qdisc___state_t {
34 __QDISC___STATE_RUNNING = 1,
35 };
36
37 struct qdisc_size_table {
38 struct rcu_head rcu;
39 struct list_head list;
40 struct tc_sizespec szopts;
41 int refcnt;
42 u16 data[];
43 };
44
45 struct Qdisc {
46 int (*enqueue)(struct sk_buff *skb, struct Qdisc *dev);
47 struct sk_buff * (*dequeue)(struct Qdisc *dev);
48 unsigned int flags;
49 #define TCQ_F_BUILTIN 1
50 #define TCQ_F_INGRESS 2
51 #define TCQ_F_CAN_BYPASS 4
52 #define TCQ_F_MQROOT 8
53 #define TCQ_F_ONETXQUEUE 0x10 /* dequeue_skb() can assume all skbs are for
54 * q->dev_queue : It can test
55 * netif_xmit_frozen_or_stopped() before
56 * dequeueing next packet.
57 * Its true for MQ/MQPRIO slaves, or non
58 * multiqueue device.
59 */
60 #define TCQ_F_WARN_NONWC (1 << 16)
61 int padded;
62 const struct Qdisc_ops *ops;
63 struct qdisc_size_table __rcu *stab;
64 struct list_head list;
65 u32 handle;
66 u32 parent;
67 atomic_t refcnt;
68 struct gnet_stats_rate_est rate_est;
69 int (*reshape_fail)(struct sk_buff *skb,
70 struct Qdisc *q);
71
72 void *u32_node;
73
74 /* This field is deprecated, but it is still used by CBQ
75 * and it will live until better solution will be invented.
76 */
77 struct Qdisc *__parent;
78 struct netdev_queue *dev_queue;
79 struct Qdisc *next_sched;
80
81 struct sk_buff *gso_skb;
82 /*
83 * For performance sake on SMP, we put highly modified fields at the end
84 */
85 unsigned long state;
86 struct sk_buff_head q;
87 struct gnet_stats_basic_packed bstats;
88 unsigned int __state;
89 struct gnet_stats_queue qstats;
90 struct rcu_head rcu_head;
91 spinlock_t busylock;
92 u32 limit;
93 };
94
95 static inline bool qdisc_is_running(const struct Qdisc *qdisc)
96 {
97 return (qdisc->__state & __QDISC___STATE_RUNNING) ? true : false;
98 }
99
100 static inline bool qdisc_run_begin(struct Qdisc *qdisc)
101 {
102 if (qdisc_is_running(qdisc))
103 return false;
104 qdisc->__state |= __QDISC___STATE_RUNNING;
105 return true;
106 }
107
108 static inline void qdisc_run_end(struct Qdisc *qdisc)
109 {
110 qdisc->__state &= ~__QDISC___STATE_RUNNING;
111 }
112
113 static inline bool qdisc_is_throttled(const struct Qdisc *qdisc)
114 {
115 return test_bit(__QDISC_STATE_THROTTLED, &qdisc->state) ? true : false;
116 }
117
118 static inline void qdisc_throttled(struct Qdisc *qdisc)
119 {
120 set_bit(__QDISC_STATE_THROTTLED, &qdisc->state);
121 }
122
123 static inline void qdisc_unthrottled(struct Qdisc *qdisc)
124 {
125 clear_bit(__QDISC_STATE_THROTTLED, &qdisc->state);
126 }
127
128 struct Qdisc_class_ops {
129 /* Child qdisc manipulation */
130 struct netdev_queue * (*select_queue)(struct Qdisc *, struct tcmsg *);
131 int (*graft)(struct Qdisc *, unsigned long cl,
132 struct Qdisc *, struct Qdisc **);
133 struct Qdisc * (*leaf)(struct Qdisc *, unsigned long cl);
134 void (*qlen_notify)(struct Qdisc *, unsigned long);
135
136 /* Class manipulation routines */
137 unsigned long (*get)(struct Qdisc *, u32 classid);
138 void (*put)(struct Qdisc *, unsigned long);
139 int (*change)(struct Qdisc *, u32, u32,
140 struct nlattr **, unsigned long *);
141 int (*delete)(struct Qdisc *, unsigned long);
142 void (*walk)(struct Qdisc *, struct qdisc_walker * arg);
143
144 /* Filter manipulation */
145 struct tcf_proto ** (*tcf_chain)(struct Qdisc *, unsigned long);
146 unsigned long (*bind_tcf)(struct Qdisc *, unsigned long,
147 u32 classid);
148 void (*unbind_tcf)(struct Qdisc *, unsigned long);
149
150 /* rtnetlink specific */
151 int (*dump)(struct Qdisc *, unsigned long,
152 struct sk_buff *skb, struct tcmsg*);
153 int (*dump_stats)(struct Qdisc *, unsigned long,
154 struct gnet_dump *);
155 };
156
157 struct Qdisc_ops {
158 struct Qdisc_ops *next;
159 const struct Qdisc_class_ops *cl_ops;
160 char id[IFNAMSIZ];
161 int priv_size;
162
163 int (*enqueue)(struct sk_buff *, struct Qdisc *);
164 struct sk_buff * (*dequeue)(struct Qdisc *);
165 struct sk_buff * (*peek)(struct Qdisc *);
166 unsigned int (*drop)(struct Qdisc *);
167
168 int (*init)(struct Qdisc *, struct nlattr *arg);
169 void (*reset)(struct Qdisc *);
170 void (*destroy)(struct Qdisc *);
171 int (*change)(struct Qdisc *, struct nlattr *arg);
172 void (*attach)(struct Qdisc *);
173
174 int (*dump)(struct Qdisc *, struct sk_buff *);
175 int (*dump_stats)(struct Qdisc *, struct gnet_dump *);
176
177 struct module *owner;
178 };
179
180
181 struct tcf_result {
182 unsigned long class;
183 u32 classid;
184 };
185
186 struct tcf_proto_ops {
187 struct tcf_proto_ops *next;
188 char kind[IFNAMSIZ];
189
190 int (*classify)(struct sk_buff *,
191 const struct tcf_proto *,
192 struct tcf_result *);
193 int (*init)(struct tcf_proto*);
194 void (*destroy)(struct tcf_proto*);
195
196 unsigned long (*get)(struct tcf_proto*, u32 handle);
197 void (*put)(struct tcf_proto*, unsigned long);
198 int (*change)(struct net *net, struct sk_buff *,
199 struct tcf_proto*, unsigned long,
200 u32 handle, struct nlattr **,
201 unsigned long *);
202 int (*delete)(struct tcf_proto*, unsigned long);
203 void (*walk)(struct tcf_proto*, struct tcf_walker *arg);
204
205 /* rtnetlink specific */
206 int (*dump)(struct tcf_proto*, unsigned long,
207 struct sk_buff *skb, struct tcmsg*);
208
209 struct module *owner;
210 };
211
212 struct tcf_proto {
213 /* Fast access part */
214 struct tcf_proto *next;
215 void *root;
216 int (*classify)(struct sk_buff *,
217 const struct tcf_proto *,
218 struct tcf_result *);
219 __be16 protocol;
220
221 /* All the rest */
222 u32 prio;
223 u32 classid;
224 struct Qdisc *q;
225 void *data;
226 const struct tcf_proto_ops *ops;
227 };
228
229 struct qdisc_skb_cb {
230 unsigned int pkt_len;
231 u16 slave_dev_queue_mapping;
232 u16 _pad;
233 unsigned char data[20];
234 };
235
236 static inline void qdisc_cb_private_validate(const struct sk_buff *skb, int sz)
237 {
238 struct qdisc_skb_cb *qcb;
239
240 BUILD_BUG_ON(sizeof(skb->cb) < offsetof(struct qdisc_skb_cb, data) + sz);
241 BUILD_BUG_ON(sizeof(qcb->data) < sz);
242 }
243
244 static inline int qdisc_qlen(const struct Qdisc *q)
245 {
246 return q->q.qlen;
247 }
248
249 static inline struct qdisc_skb_cb *qdisc_skb_cb(const struct sk_buff *skb)
250 {
251 return (struct qdisc_skb_cb *)skb->cb;
252 }
253
254 static inline spinlock_t *qdisc_lock(struct Qdisc *qdisc)
255 {
256 return &qdisc->q.lock;
257 }
258
259 static inline struct Qdisc *qdisc_root(const struct Qdisc *qdisc)
260 {
261 return qdisc->dev_queue->qdisc;
262 }
263
264 static inline struct Qdisc *qdisc_root_sleeping(const struct Qdisc *qdisc)
265 {
266 return qdisc->dev_queue->qdisc_sleeping;
267 }
268
269 /* The qdisc root lock is a mechanism by which to top level
270 * of a qdisc tree can be locked from any qdisc node in the
271 * forest. This allows changing the configuration of some
272 * aspect of the qdisc tree while blocking out asynchronous
273 * qdisc access in the packet processing paths.
274 *
275 * It is only legal to do this when the root will not change
276 * on us. Otherwise we'll potentially lock the wrong qdisc
277 * root. This is enforced by holding the RTNL semaphore, which
278 * all users of this lock accessor must do.
279 */
280 static inline spinlock_t *qdisc_root_lock(const struct Qdisc *qdisc)
281 {
282 struct Qdisc *root = qdisc_root(qdisc);
283
284 ASSERT_RTNL();
285 return qdisc_lock(root);
286 }
287
288 static inline spinlock_t *qdisc_root_sleeping_lock(const struct Qdisc *qdisc)
289 {
290 struct Qdisc *root = qdisc_root_sleeping(qdisc);
291
292 ASSERT_RTNL();
293 return qdisc_lock(root);
294 }
295
296 static inline struct net_device *qdisc_dev(const struct Qdisc *qdisc)
297 {
298 return qdisc->dev_queue->dev;
299 }
300
301 static inline void sch_tree_lock(const struct Qdisc *q)
302 {
303 spin_lock_bh(qdisc_root_sleeping_lock(q));
304 }
305
306 static inline void sch_tree_unlock(const struct Qdisc *q)
307 {
308 spin_unlock_bh(qdisc_root_sleeping_lock(q));
309 }
310
311 #define tcf_tree_lock(tp) sch_tree_lock((tp)->q)
312 #define tcf_tree_unlock(tp) sch_tree_unlock((tp)->q)
313
314 extern struct Qdisc noop_qdisc;
315 extern struct Qdisc_ops noop_qdisc_ops;
316 extern struct Qdisc_ops pfifo_fast_ops;
317 extern struct Qdisc_ops mq_qdisc_ops;
318
319 struct Qdisc_class_common {
320 u32 classid;
321 struct hlist_node hnode;
322 };
323
324 struct Qdisc_class_hash {
325 struct hlist_head *hash;
326 unsigned int hashsize;
327 unsigned int hashmask;
328 unsigned int hashelems;
329 };
330
331 static inline unsigned int qdisc_class_hash(u32 id, u32 mask)
332 {
333 id ^= id >> 8;
334 id ^= id >> 4;
335 return id & mask;
336 }
337
338 static inline struct Qdisc_class_common *
339 qdisc_class_find(const struct Qdisc_class_hash *hash, u32 id)
340 {
341 struct Qdisc_class_common *cl;
342 unsigned int h;
343
344 h = qdisc_class_hash(id, hash->hashmask);
345 hlist_for_each_entry(cl, &hash->hash[h], hnode) {
346 if (cl->classid == id)
347 return cl;
348 }
349 return NULL;
350 }
351
352 extern int qdisc_class_hash_init(struct Qdisc_class_hash *);
353 extern void qdisc_class_hash_insert(struct Qdisc_class_hash *, struct Qdisc_class_common *);
354 extern void qdisc_class_hash_remove(struct Qdisc_class_hash *, struct Qdisc_class_common *);
355 extern void qdisc_class_hash_grow(struct Qdisc *, struct Qdisc_class_hash *);
356 extern void qdisc_class_hash_destroy(struct Qdisc_class_hash *);
357
358 extern void dev_init_scheduler(struct net_device *dev);
359 extern void dev_shutdown(struct net_device *dev);
360 extern void dev_activate(struct net_device *dev);
361 extern void dev_deactivate(struct net_device *dev);
362 extern void dev_deactivate_many(struct list_head *head);
363 extern struct Qdisc *dev_graft_qdisc(struct netdev_queue *dev_queue,
364 struct Qdisc *qdisc);
365 extern void qdisc_reset(struct Qdisc *qdisc);
366 extern void qdisc_destroy(struct Qdisc *qdisc);
367 extern void qdisc_tree_decrease_qlen(struct Qdisc *qdisc, unsigned int n);
368 extern struct Qdisc *qdisc_alloc(struct netdev_queue *dev_queue,
369 struct Qdisc_ops *ops);
370 extern struct Qdisc *qdisc_create_dflt(struct netdev_queue *dev_queue,
371 struct Qdisc_ops *ops, u32 parentid);
372 extern void __qdisc_calculate_pkt_len(struct sk_buff *skb,
373 const struct qdisc_size_table *stab);
374 extern void tcf_destroy(struct tcf_proto *tp);
375 extern void tcf_destroy_chain(struct tcf_proto **fl);
376
377 /* Reset all TX qdiscs greater then index of a device. */
378 static inline void qdisc_reset_all_tx_gt(struct net_device *dev, unsigned int i)
379 {
380 struct Qdisc *qdisc;
381
382 for (; i < dev->num_tx_queues; i++) {
383 qdisc = netdev_get_tx_queue(dev, i)->qdisc;
384 if (qdisc) {
385 spin_lock_bh(qdisc_lock(qdisc));
386 qdisc_reset(qdisc);
387 spin_unlock_bh(qdisc_lock(qdisc));
388 }
389 }
390 }
391
392 static inline void qdisc_reset_all_tx(struct net_device *dev)
393 {
394 qdisc_reset_all_tx_gt(dev, 0);
395 }
396
397 /* Are all TX queues of the device empty? */
398 static inline bool qdisc_all_tx_empty(const struct net_device *dev)
399 {
400 unsigned int i;
401 for (i = 0; i < dev->num_tx_queues; i++) {
402 struct netdev_queue *txq = netdev_get_tx_queue(dev, i);
403 const struct Qdisc *q = txq->qdisc;
404
405 if (q->q.qlen)
406 return false;
407 }
408 return true;
409 }
410
411 /* Are any of the TX qdiscs changing? */
412 static inline bool qdisc_tx_changing(const struct net_device *dev)
413 {
414 unsigned int i;
415 for (i = 0; i < dev->num_tx_queues; i++) {
416 struct netdev_queue *txq = netdev_get_tx_queue(dev, i);
417 if (txq->qdisc != txq->qdisc_sleeping)
418 return true;
419 }
420 return false;
421 }
422
423 /* Is the device using the noop qdisc on all queues? */
424 static inline bool qdisc_tx_is_noop(const struct net_device *dev)
425 {
426 unsigned int i;
427 for (i = 0; i < dev->num_tx_queues; i++) {
428 struct netdev_queue *txq = netdev_get_tx_queue(dev, i);
429 if (txq->qdisc != &noop_qdisc)
430 return false;
431 }
432 return true;
433 }
434
435 static inline unsigned int qdisc_pkt_len(const struct sk_buff *skb)
436 {
437 return qdisc_skb_cb(skb)->pkt_len;
438 }
439
440 /* additional qdisc xmit flags (NET_XMIT_MASK in linux/netdevice.h) */
441 enum net_xmit_qdisc_t {
442 __NET_XMIT_STOLEN = 0x00010000,
443 __NET_XMIT_BYPASS = 0x00020000,
444 };
445
446 #ifdef CONFIG_NET_CLS_ACT
447 #define net_xmit_drop_count(e) ((e) & __NET_XMIT_STOLEN ? 0 : 1)
448 #else
449 #define net_xmit_drop_count(e) (1)
450 #endif
451
452 static inline void qdisc_calculate_pkt_len(struct sk_buff *skb,
453 const struct Qdisc *sch)
454 {
455 #ifdef CONFIG_NET_SCHED
456 struct qdisc_size_table *stab = rcu_dereference_bh(sch->stab);
457
458 if (stab)
459 __qdisc_calculate_pkt_len(skb, stab);
460 #endif
461 }
462
463 static inline int qdisc_enqueue(struct sk_buff *skb, struct Qdisc *sch)
464 {
465 qdisc_calculate_pkt_len(skb, sch);
466 return sch->enqueue(skb, sch);
467 }
468
469 static inline int qdisc_enqueue_root(struct sk_buff *skb, struct Qdisc *sch)
470 {
471 qdisc_skb_cb(skb)->pkt_len = skb->len;
472 return qdisc_enqueue(skb, sch) & NET_XMIT_MASK;
473 }
474
475
476 static inline void bstats_update(struct gnet_stats_basic_packed *bstats,
477 const struct sk_buff *skb)
478 {
479 bstats->bytes += qdisc_pkt_len(skb);
480 bstats->packets += skb_is_gso(skb) ? skb_shinfo(skb)->gso_segs : 1;
481 }
482
483 static inline void qdisc_bstats_update(struct Qdisc *sch,
484 const struct sk_buff *skb)
485 {
486 bstats_update(&sch->bstats, skb);
487 }
488
489 static inline int __qdisc_enqueue_tail(struct sk_buff *skb, struct Qdisc *sch,
490 struct sk_buff_head *list)
491 {
492 __skb_queue_tail(list, skb);
493 sch->qstats.backlog += qdisc_pkt_len(skb);
494
495 return NET_XMIT_SUCCESS;
496 }
497
498 static inline int qdisc_enqueue_tail(struct sk_buff *skb, struct Qdisc *sch)
499 {
500 return __qdisc_enqueue_tail(skb, sch, &sch->q);
501 }
502
503 static inline struct sk_buff *__qdisc_dequeue_head(struct Qdisc *sch,
504 struct sk_buff_head *list)
505 {
506 struct sk_buff *skb = __skb_dequeue(list);
507
508 if (likely(skb != NULL)) {
509 sch->qstats.backlog -= qdisc_pkt_len(skb);
510 qdisc_bstats_update(sch, skb);
511 }
512
513 return skb;
514 }
515
516 static inline struct sk_buff *qdisc_dequeue_head(struct Qdisc *sch)
517 {
518 return __qdisc_dequeue_head(sch, &sch->q);
519 }
520
521 static inline unsigned int __qdisc_queue_drop_head(struct Qdisc *sch,
522 struct sk_buff_head *list)
523 {
524 struct sk_buff *skb = __skb_dequeue(list);
525
526 if (likely(skb != NULL)) {
527 unsigned int len = qdisc_pkt_len(skb);
528 sch->qstats.backlog -= len;
529 kfree_skb(skb);
530 return len;
531 }
532
533 return 0;
534 }
535
536 static inline unsigned int qdisc_queue_drop_head(struct Qdisc *sch)
537 {
538 return __qdisc_queue_drop_head(sch, &sch->q);
539 }
540
541 static inline struct sk_buff *__qdisc_dequeue_tail(struct Qdisc *sch,
542 struct sk_buff_head *list)
543 {
544 struct sk_buff *skb = __skb_dequeue_tail(list);
545
546 if (likely(skb != NULL))
547 sch->qstats.backlog -= qdisc_pkt_len(skb);
548
549 return skb;
550 }
551
552 static inline struct sk_buff *qdisc_dequeue_tail(struct Qdisc *sch)
553 {
554 return __qdisc_dequeue_tail(sch, &sch->q);
555 }
556
557 static inline struct sk_buff *qdisc_peek_head(struct Qdisc *sch)
558 {
559 return skb_peek(&sch->q);
560 }
561
562 /* generic pseudo peek method for non-work-conserving qdisc */
563 static inline struct sk_buff *qdisc_peek_dequeued(struct Qdisc *sch)
564 {
565 /* we can reuse ->gso_skb because peek isn't called for root qdiscs */
566 if (!sch->gso_skb) {
567 sch->gso_skb = sch->dequeue(sch);
568 if (sch->gso_skb)
569 /* it's still part of the queue */
570 sch->q.qlen++;
571 }
572
573 return sch->gso_skb;
574 }
575
576 /* use instead of qdisc->dequeue() for all qdiscs queried with ->peek() */
577 static inline struct sk_buff *qdisc_dequeue_peeked(struct Qdisc *sch)
578 {
579 struct sk_buff *skb = sch->gso_skb;
580
581 if (skb) {
582 sch->gso_skb = NULL;
583 sch->q.qlen--;
584 } else {
585 skb = sch->dequeue(sch);
586 }
587
588 return skb;
589 }
590
591 static inline void __qdisc_reset_queue(struct Qdisc *sch,
592 struct sk_buff_head *list)
593 {
594 /*
595 * We do not know the backlog in bytes of this list, it
596 * is up to the caller to correct it
597 */
598 __skb_queue_purge(list);
599 }
600
601 static inline void qdisc_reset_queue(struct Qdisc *sch)
602 {
603 __qdisc_reset_queue(sch, &sch->q);
604 sch->qstats.backlog = 0;
605 }
606
607 static inline unsigned int __qdisc_queue_drop(struct Qdisc *sch,
608 struct sk_buff_head *list)
609 {
610 struct sk_buff *skb = __qdisc_dequeue_tail(sch, list);
611
612 if (likely(skb != NULL)) {
613 unsigned int len = qdisc_pkt_len(skb);
614 kfree_skb(skb);
615 return len;
616 }
617
618 return 0;
619 }
620
621 static inline unsigned int qdisc_queue_drop(struct Qdisc *sch)
622 {
623 return __qdisc_queue_drop(sch, &sch->q);
624 }
625
626 static inline int qdisc_drop(struct sk_buff *skb, struct Qdisc *sch)
627 {
628 kfree_skb(skb);
629 sch->qstats.drops++;
630
631 return NET_XMIT_DROP;
632 }
633
634 static inline int qdisc_reshape_fail(struct sk_buff *skb, struct Qdisc *sch)
635 {
636 sch->qstats.drops++;
637
638 #ifdef CONFIG_NET_CLS_ACT
639 if (sch->reshape_fail == NULL || sch->reshape_fail(skb, sch))
640 goto drop;
641
642 return NET_XMIT_SUCCESS;
643
644 drop:
645 #endif
646 kfree_skb(skb);
647 return NET_XMIT_DROP;
648 }
649
650 /* Length to Time (L2T) lookup in a qdisc_rate_table, to determine how
651 long it will take to send a packet given its size.
652 */
653 static inline u32 qdisc_l2t(struct qdisc_rate_table* rtab, unsigned int pktlen)
654 {
655 int slot = pktlen + rtab->rate.cell_align + rtab->rate.overhead;
656 if (slot < 0)
657 slot = 0;
658 slot >>= rtab->rate.cell_log;
659 if (slot > 255)
660 return rtab->data[255]*(slot >> 8) + rtab->data[slot & 0xFF];
661 return rtab->data[slot];
662 }
663
664 #ifdef CONFIG_NET_CLS_ACT
665 static inline struct sk_buff *skb_act_clone(struct sk_buff *skb, gfp_t gfp_mask,
666 int action)
667 {
668 struct sk_buff *n;
669
670 n = skb_clone(skb, gfp_mask);
671
672 if (n) {
673 n->tc_verd = SET_TC_VERD(n->tc_verd, 0);
674 n->tc_verd = CLR_TC_OK2MUNGE(n->tc_verd);
675 n->tc_verd = CLR_TC_MUNGED(n->tc_verd);
676 }
677 return n;
678 }
679 #endif
680
681 struct psched_ratecfg {
682 u64 rate_bps;
683 u32 mult;
684 u16 overhead;
685 u8 linklayer;
686 u8 shift;
687 };
688
689 static inline u64 psched_l2t_ns(const struct psched_ratecfg *r,
690 unsigned int len)
691 {
692 len += r->overhead;
693
694 if (unlikely(r->linklayer == TC_LINKLAYER_ATM))
695 return ((u64)(DIV_ROUND_UP(len,48)*53) * r->mult) >> r->shift;
696
697 return ((u64)len * r->mult) >> r->shift;
698 }
699
700 extern void psched_ratecfg_precompute(struct psched_ratecfg *r, const struct tc_ratespec *conf);
701
702 static inline void psched_ratecfg_getrate(struct tc_ratespec *res,
703 const struct psched_ratecfg *r)
704 {
705 memset(res, 0, sizeof(*res));
706 res->rate = r->rate_bps >> 3;
707 res->overhead = r->overhead;
708 res->linklayer = (r->linklayer & TC_LINKLAYER_MASK);
709 }
710
711 #endif
kernel source for telekom puls (alcatel/mediatek)