net/sched/sch_prio.c

31 prio_classify(struct sk_buff *skb, struct Qdisc *sch, int *qerr)
33 	struct prio_sched_data *q = qdisc_priv(sch);
40 	if (TC_H_MAJ(skb->priority) != sch->handle) {
69 prio_enqueue(struct sk_buff *skb, struct Qdisc *sch, struct sk_buff **to_free)
75 	qdisc = prio_classify(skb, sch, &ret);
80 			qdisc_qstats_drop(sch);
88 		sch->qstats.backlog += len;
89 		sch->q.qlen++;
93 		qdisc_qstats_drop(sch);
97 static struct sk_buff *prio_peek(struct Qdisc *sch)
99 	struct prio_sched_data *q = qdisc_priv(sch);
111 static struct sk_buff *prio_dequeue(struct Qdisc *sch)
113 	struct prio_sched_data *q = qdisc_priv(sch);
120 			qdisc_bstats_update(sch, skb);
121 			qdisc_qstats_backlog_dec(sch, skb);
122 			sch->q.qlen--;
131 prio_reset(struct Qdisc *sch)
134 	struct prio_sched_data *q = qdisc_priv(sch);
140 static int prio_offload(struct Qdisc *sch, struct tc_prio_qopt *qopt)
142 	struct net_device *dev = qdisc_dev(sch);
144 		.handle = sch->handle,
145 		.parent = sch->parent,
156 		opt.replace_params.qstats = &sch->qstats;
165 prio_destroy(struct Qdisc *sch)
168 	struct prio_sched_data *q = qdisc_priv(sch);
171 	prio_offload(sch, NULL);
176 static int prio_tune(struct Qdisc *sch, struct nlattr *opt,
179 	struct prio_sched_data *q = qdisc_priv(sch);
198 		queues[i] = qdisc_create_dflt(sch->dev_queue, &pfifo_qdisc_ops,
199 					      TC_H_MAKE(sch->handle, i + 1),
208 	prio_offload(sch, qopt);
209 	sch_tree_lock(sch);
222 	sch_tree_unlock(sch);
229 static int prio_init(struct Qdisc *sch, struct nlattr *opt,
232 	struct prio_sched_data *q = qdisc_priv(sch);
238 	err = tcf_block_get(&q->block, &q->filter_list, sch, extack);
242 	return prio_tune(sch, opt, extack);
245 static int prio_dump_offload(struct Qdisc *sch)
249 		.handle = sch->handle,
250 		.parent = sch->parent,
253 				.bstats = &sch->bstats,
254 				.qstats = &sch->qstats,
259 	return qdisc_offload_dump_helper(sch, TC_SETUP_QDISC_PRIO, &hw_stats);
262 static int prio_dump(struct Qdisc *sch, struct sk_buff *skb)
264 	struct prio_sched_data *q = qdisc_priv(sch);
272 	err = prio_dump_offload(sch);
286 static int prio_graft(struct Qdisc *sch, unsigned long arg, struct Qdisc *new,
289 	struct prio_sched_data *q = qdisc_priv(sch);
294 		new = qdisc_create_dflt(sch->dev_queue, &pfifo_qdisc_ops,
295 					TC_H_MAKE(sch->handle, arg), extack);
302 	*old = qdisc_replace(sch, new, &q->queues[band]);
304 	graft_offload.handle = sch->handle;
305 	graft_offload.parent = sch->parent;
310 	qdisc_offload_graft_helper(qdisc_dev(sch), sch, new, *old,
317 prio_leaf(struct Qdisc *sch, unsigned long arg)
319 	struct prio_sched_data *q = qdisc_priv(sch);
325 static unsigned long prio_find(struct Qdisc *sch, u32 classid)
327 	struct prio_sched_data *q = qdisc_priv(sch);
335 static unsigned long prio_bind(struct Qdisc *sch, unsigned long parent, u32 classid)
337 	return prio_find(sch, classid);
345 static int prio_dump_class(struct Qdisc *sch, unsigned long cl, struct sk_buff *skb,
348 	struct prio_sched_data *q = qdisc_priv(sch);
355 static int prio_dump_class_stats(struct Qdisc *sch, unsigned long cl,
358 	struct prio_sched_data *q = qdisc_priv(sch);
370 static void prio_walk(struct Qdisc *sch, struct qdisc_walker *arg)
372 	struct prio_sched_data *q = qdisc_priv(sch);
379 		if (!tc_qdisc_stats_dump(sch, prio + 1, arg))
384 static struct tcf_block *prio_tcf_block(struct Qdisc *sch, unsigned long cl,
387 	struct prio_sched_data *q = qdisc_priv(sch);