22 static int bfifo_enqueue(struct sk_buff *skb, struct Qdisc *sch)  in bfifo_enqueue()  argument
24 	if (likely(sch->qstats.backlog + qdisc_pkt_len(skb) <= sch->limit))  in bfifo_enqueue()
25 		return qdisc_enqueue_tail(skb, sch);  in bfifo_enqueue()
27 	return qdisc_reshape_fail(skb, sch);  in bfifo_enqueue()
30 static int pfifo_enqueue(struct sk_buff *skb, struct Qdisc *sch)  in pfifo_enqueue()  argument
32 	if (likely(skb_queue_len(&sch->q) < sch->limit))  in pfifo_enqueue()
33 		return qdisc_enqueue_tail(skb, sch);  in pfifo_enqueue()
35 	return qdisc_reshape_fail(skb, sch);  in pfifo_enqueue()
38 static int pfifo_tail_enqueue(struct sk_buff *skb, struct Qdisc *sch)  in pfifo_tail_enqueue()  argument
40 	if (likely(skb_queue_len(&sch->q) < sch->limit))  in pfifo_tail_enqueue()
41 		return qdisc_enqueue_tail(skb, sch);  in pfifo_tail_enqueue()
44 	__qdisc_queue_drop_head(sch, &sch->q);  in pfifo_tail_enqueue()
45 	qdisc_qstats_drop(sch);  in pfifo_tail_enqueue()
46 	qdisc_enqueue_tail(skb, sch);  in pfifo_tail_enqueue()
51 static int fifo_init(struct Qdisc *sch, struct nlattr *opt)  in fifo_init()  argument
54 	bool is_bfifo = sch->ops == &bfifo_qdisc_ops;  in fifo_init()
57 		u32 limit = qdisc_dev(sch)->tx_queue_len;  in fifo_init()
60 			limit *= psched_mtu(qdisc_dev(sch));  in fifo_init()
62 		sch->limit = limit;  in fifo_init()
69 		sch->limit = ctl->limit;  in fifo_init()
73 		bypass = sch->limit >= psched_mtu(qdisc_dev(sch));  in fifo_init()
75 		bypass = sch->limit >= 1;  in fifo_init()
78 		sch->flags |= TCQ_F_CAN_BYPASS;  in fifo_init()
80 		sch->flags &= ~TCQ_F_CAN_BYPASS;  in fifo_init()
84 static int fifo_dump(struct Qdisc *sch, struct sk_buff *skb)  in fifo_dump()  argument
86 	struct tc_fifo_qopt opt = { .limit = sch->limit };  in fifo_dump()
163 struct Qdisc *fifo_create_dflt(struct Qdisc *sch, struct Qdisc_ops *ops,  in fifo_create_dflt()  argument
169 	q = qdisc_create_dflt(sch->dev_queue, ops, TC_H_MAKE(sch->handle, 1));  in fifo_create_dflt()