Lines Matching refs:sch
19 static int bfifo_enqueue(struct sk_buff *skb, struct Qdisc *sch,
22 if (likely(sch->qstats.backlog + qdisc_pkt_len(skb) <= sch->limit))
23 return qdisc_enqueue_tail(skb, sch);
25 return qdisc_drop(skb, sch, to_free);
28 static int pfifo_enqueue(struct sk_buff *skb, struct Qdisc *sch,
31 if (likely(sch->q.qlen < sch->limit))
32 return qdisc_enqueue_tail(skb, sch);
34 return qdisc_drop(skb, sch, to_free);
37 static int pfifo_tail_enqueue(struct sk_buff *skb, struct Qdisc *sch,
42 if (likely(sch->q.qlen < sch->limit))
43 return qdisc_enqueue_tail(skb, sch);
45 prev_backlog = sch->qstats.backlog;
47 __qdisc_queue_drop_head(sch, &sch->q, to_free);
48 qdisc_qstats_drop(sch);
49 qdisc_enqueue_tail(skb, sch);
51 qdisc_tree_reduce_backlog(sch, 0, prev_backlog - sch->qstats.backlog);
55 static void fifo_offload_init(struct Qdisc *sch)
57 struct net_device *dev = qdisc_dev(sch);
64 qopt.handle = sch->handle;
65 qopt.parent = sch->parent;
69 static void fifo_offload_destroy(struct Qdisc *sch)
71 struct net_device *dev = qdisc_dev(sch);
78 qopt.handle = sch->handle;
79 qopt.parent = sch->parent;
83 static int fifo_offload_dump(struct Qdisc *sch)
88 qopt.handle = sch->handle;
89 qopt.parent = sch->parent;
90 qopt.stats.bstats = &sch->bstats;
91 qopt.stats.qstats = &sch->qstats;
93 return qdisc_offload_dump_helper(sch, TC_SETUP_QDISC_FIFO, &qopt);
96 static int __fifo_init(struct Qdisc *sch, struct nlattr *opt,
100 bool is_bfifo = sch->ops == &bfifo_qdisc_ops;
103 u32 limit = qdisc_dev(sch)->tx_queue_len;
106 limit *= psched_mtu(qdisc_dev(sch));
108 sch->limit = limit;
115 sch->limit = ctl->limit;
119 bypass = sch->limit >= psched_mtu(qdisc_dev(sch));
121 bypass = sch->limit >= 1;
124 sch->flags |= TCQ_F_CAN_BYPASS;
126 sch->flags &= ~TCQ_F_CAN_BYPASS;
131 static int fifo_init(struct Qdisc *sch, struct nlattr *opt,
136 err = __fifo_init(sch, opt, extack);
140 fifo_offload_init(sch);
144 static int fifo_hd_init(struct Qdisc *sch, struct nlattr *opt,
147 return __fifo_init(sch, opt, extack);
150 static void fifo_destroy(struct Qdisc *sch)
152 fifo_offload_destroy(sch);
155 static int __fifo_dump(struct Qdisc *sch, struct sk_buff *skb)
157 struct tc_fifo_qopt opt = { .limit = sch->limit };
167 static int fifo_dump(struct Qdisc *sch, struct sk_buff *skb)
171 err = fifo_offload_dump(sch);
175 return __fifo_dump(sch, skb);
178 static int fifo_hd_dump(struct Qdisc *sch, struct sk_buff *skb)
180 return __fifo_dump(sch, skb);
252 struct Qdisc *fifo_create_dflt(struct Qdisc *sch, struct Qdisc_ops *ops,
259 q = qdisc_create_dflt(sch->dev_queue, ops, TC_H_MAKE(sch->handle, 1),