144 	struct Qdisc	*sch;  member
163 static unsigned int sfq_classify(struct sk_buff *skb, struct Qdisc *sch,  in sfq_classify()  argument
166 	struct sfq_sched_data *q = qdisc_priv(sch);  in sfq_classify()
171 	if (TC_H_MAJ(skb->priority) == sch->handle &&  in sfq_classify()
293 static unsigned int sfq_drop(struct Qdisc *sch, struct sk_buff **to_free)  in sfq_drop()  argument
295 	struct sfq_sched_data *q = qdisc_priv(sch);  in sfq_drop()
310 		sch->q.qlen--;  in sfq_drop()
311 		qdisc_qstats_backlog_dec(sch, skb);  in sfq_drop()
312 		qdisc_drop(skb, sch, to_free);  in sfq_drop()
346 sfq_enqueue(struct sk_buff *skb, struct Qdisc *sch, struct sk_buff **to_free)  in sfq_enqueue()  argument
348 	struct sfq_sched_data *q = qdisc_priv(sch);  in sfq_enqueue()
356 	hash = sfq_classify(skb, sch, &ret);  in sfq_enqueue()
359 			qdisc_qstats_drop(sch);  in sfq_enqueue()
370 			return qdisc_drop(skb, sch, to_free);  in sfq_enqueue()
389 			qdisc_qstats_overlimit(sch);  in sfq_enqueue()
406 			qdisc_qstats_overlimit(sch);  in sfq_enqueue()
427 			return qdisc_drop(skb, sch, to_free);  in sfq_enqueue()
432 		sch->qstats.backlog -= delta;  in sfq_enqueue()
434 		qdisc_drop(head, sch, to_free);  in sfq_enqueue()
437 		qdisc_tree_reduce_backlog(sch, 0, delta);  in sfq_enqueue()
442 	qdisc_qstats_backlog_inc(sch, skb);  in sfq_enqueue()
461 	if (++sch->q.qlen <= q->limit)  in sfq_enqueue()
465 	dropped = sfq_drop(sch, to_free);  in sfq_enqueue()
470 		qdisc_tree_reduce_backlog(sch, 0, dropped - qdisc_pkt_len(skb));  in sfq_enqueue()
475 	qdisc_tree_reduce_backlog(sch, 1, dropped);  in sfq_enqueue()
480 sfq_dequeue(struct Qdisc *sch)  in sfq_dequeue()  argument
482 	struct sfq_sched_data *q = qdisc_priv(sch);  in sfq_dequeue()
501 	qdisc_bstats_update(sch, skb);  in sfq_dequeue()
502 	sch->q.qlen--;  in sfq_dequeue()
503 	qdisc_qstats_backlog_dec(sch, skb);  in sfq_dequeue()
521 sfq_reset(struct Qdisc *sch)  in sfq_reset()  argument
525 	while ((skb = sfq_dequeue(sch)) != NULL)  in sfq_reset()
535 static void sfq_rehash(struct Qdisc *sch)  in sfq_rehash()  argument
537 	struct sfq_sched_data *q = qdisc_priv(sch);  in sfq_rehash()
571 				qdisc_qstats_backlog_dec(sch, skb);  in sfq_rehash()
601 	sch->q.qlen -= dropped;  in sfq_rehash()
602 	qdisc_tree_reduce_backlog(sch, dropped, drop_len);  in sfq_rehash()
608 	struct Qdisc *sch = q->sch;  in sfq_perturbation()  local
609 	spinlock_t *root_lock = qdisc_lock(qdisc_root_sleeping(sch));  in sfq_perturbation()
616 		sfq_rehash(sch);  in sfq_perturbation()
623 static int sfq_change(struct Qdisc *sch, struct nlattr *opt)  in sfq_change()  argument
625 	struct sfq_sched_data *q = qdisc_priv(sch);  in sfq_change()
657 	sch_tree_lock(sch);  in sfq_change()
689 	qlen = sch->q.qlen;  in sfq_change()
690 	while (sch->q.qlen > q->limit) {  in sfq_change()
691 		dropped += sfq_drop(sch, &to_free);  in sfq_change()
697 	qdisc_tree_reduce_backlog(sch, qlen - sch->q.qlen, dropped);  in sfq_change()
704 	sch_tree_unlock(sch);  in sfq_change()
719 static void sfq_destroy(struct Qdisc *sch)  in sfq_destroy()  argument
721 	struct sfq_sched_data *q = qdisc_priv(sch);  in sfq_destroy()
731 static int sfq_init(struct Qdisc *sch, struct nlattr *opt,  in sfq_init()  argument
734 	struct sfq_sched_data *q = qdisc_priv(sch);  in sfq_init()
738 	q->sch = sch;  in sfq_init()
741 	err = tcf_block_get(&q->block, &q->filter_list, sch, extack);  in sfq_init()
756 	q->quantum = psched_mtu(qdisc_dev(sch));  in sfq_init()
762 		int err = sfq_change(sch, opt);  in sfq_init()
782 		sch->flags |= TCQ_F_CAN_BYPASS;  in sfq_init()
784 		sch->flags &= ~TCQ_F_CAN_BYPASS;  in sfq_init()
788 static int sfq_dump(struct Qdisc *sch, struct sk_buff *skb)  in sfq_dump()  argument
790 	struct sfq_sched_data *q = qdisc_priv(sch);  in sfq_dump()
825 static struct Qdisc *sfq_leaf(struct Qdisc *sch, unsigned long arg)  in sfq_leaf()  argument
830 static unsigned long sfq_find(struct Qdisc *sch, u32 classid)  in sfq_find()  argument
835 static unsigned long sfq_bind(struct Qdisc *sch, unsigned long parent,  in sfq_bind()  argument
845 static struct tcf_block *sfq_tcf_block(struct Qdisc *sch, unsigned long cl,  in sfq_tcf_block()  argument
848 	struct sfq_sched_data *q = qdisc_priv(sch);  in sfq_tcf_block()
855 static int sfq_dump_class(struct Qdisc *sch, unsigned long cl,  in sfq_dump_class()  argument
862 static int sfq_dump_class_stats(struct Qdisc *sch, unsigned long cl,  in sfq_dump_class_stats()  argument
865 	struct sfq_sched_data *q = qdisc_priv(sch);  in sfq_dump_class_stats()
882 static void sfq_walk(struct Qdisc *sch, struct qdisc_walker *arg)  in sfq_walk()  argument
884 	struct sfq_sched_data *q = qdisc_priv(sch);  in sfq_walk()
896 		if (arg->fn(sch, i + 1, arg) < 0) {  in sfq_walk()