49 static inline int red_use_ecn(struct red_sched_data *q)  in red_use_ecn()  argument
51 	return q->flags & TC_RED_ECN;  in red_use_ecn()
54 static inline int red_use_harddrop(struct red_sched_data *q)  in red_use_harddrop()  argument
56 	return q->flags & TC_RED_HARDDROP;  in red_use_harddrop()
61 	struct red_sched_data *q = qdisc_priv(sch);  in red_enqueue()  local
62 	struct Qdisc *child = q->qdisc;  in red_enqueue()
65 	q->vars.qavg = red_calc_qavg(&q->parms,  in red_enqueue()
66 				     &q->vars,  in red_enqueue()
69 	if (red_is_idling(&q->vars))  in red_enqueue()
70 		red_end_of_idle_period(&q->vars);  in red_enqueue()
72 	switch (red_action(&q->parms, &q->vars, q->vars.qavg)) {  in red_enqueue()
78 		if (!red_use_ecn(q) || !INET_ECN_set_ce(skb)) {  in red_enqueue()
79 			q->stats.prob_drop++;  in red_enqueue()
83 		q->stats.prob_mark++;  in red_enqueue()
88 		if (red_use_harddrop(q) || !red_use_ecn(q) ||  in red_enqueue()
90 			q->stats.forced_drop++;  in red_enqueue()
94 		q->stats.forced_mark++;  in red_enqueue()
100 		sch->q.qlen++;  in red_enqueue()
102 		q->stats.pdrop++;  in red_enqueue()
115 	struct red_sched_data *q = qdisc_priv(sch);  in red_dequeue()  local
116 	struct Qdisc *child = q->qdisc;  in red_dequeue()
121 		sch->q.qlen--;  in red_dequeue()
123 		if (!red_is_idling(&q->vars))  in red_dequeue()
124 			red_start_of_idle_period(&q->vars);  in red_dequeue()
131 	struct red_sched_data *q = qdisc_priv(sch);  in red_peek()  local
132 	struct Qdisc *child = q->qdisc;  in red_peek()
139 	struct red_sched_data *q = qdisc_priv(sch);  in red_drop()  local
140 	struct Qdisc *child = q->qdisc;  in red_drop()
144 		q->stats.other++;  in red_drop()
146 		sch->q.qlen--;  in red_drop()
150 	if (!red_is_idling(&q->vars))  in red_drop()
151 		red_start_of_idle_period(&q->vars);  in red_drop()
158 	struct red_sched_data *q = qdisc_priv(sch);  in red_reset()  local
160 	qdisc_reset(q->qdisc);  in red_reset()
161 	sch->q.qlen = 0;  in red_reset()
162 	red_restart(&q->vars);  in red_reset()
167 	struct red_sched_data *q = qdisc_priv(sch);  in red_destroy()  local
169 	del_timer_sync(&q->adapt_timer);  in red_destroy()
170 	qdisc_destroy(q->qdisc);  in red_destroy()
181 	struct red_sched_data *q = qdisc_priv(sch);  in red_change()  local
210 	q->flags = ctl->flags;  in red_change()
211 	q->limit = ctl->limit;  in red_change()
213 		qdisc_tree_reduce_backlog(q->qdisc, q->qdisc->q.qlen,  in red_change()
214 					  q->qdisc->qstats.backlog);  in red_change()
215 		qdisc_destroy(q->qdisc);  in red_change()
216 		q->qdisc = child;  in red_change()
219 	red_set_parms(&q->parms,  in red_change()
224 	red_set_vars(&q->vars);  in red_change()
226 	del_timer(&q->adapt_timer);  in red_change()
228 		mod_timer(&q->adapt_timer, jiffies + HZ/2);  in red_change()
230 	if (!q->qdisc->q.qlen)  in red_change()
231 		red_start_of_idle_period(&q->vars);  in red_change()
240 	struct red_sched_data *q = qdisc_priv(sch);  in red_adaptative_timer()  local
244 	red_adaptative_algo(&q->parms, &q->vars);  in red_adaptative_timer()
245 	mod_timer(&q->adapt_timer, jiffies + HZ/2);  in red_adaptative_timer()
251 	struct red_sched_data *q = qdisc_priv(sch);  in red_init()  local
253 	q->qdisc = &noop_qdisc;  in red_init()
254 	setup_timer(&q->adapt_timer, red_adaptative_timer, (unsigned long)sch);  in red_init()
260 	struct red_sched_data *q = qdisc_priv(sch);  in red_dump()  local
263 		.limit		= q->limit,  in red_dump()
264 		.flags		= q->flags,  in red_dump()
265 		.qth_min	= q->parms.qth_min >> q->parms.Wlog,  in red_dump()
266 		.qth_max	= q->parms.qth_max >> q->parms.Wlog,  in red_dump()
267 		.Wlog		= q->parms.Wlog,  in red_dump()
268 		.Plog		= q->parms.Plog,  in red_dump()
269 		.Scell_log	= q->parms.Scell_log,  in red_dump()
272 	sch->qstats.backlog = q->qdisc->qstats.backlog;  in red_dump()
277 	    nla_put_u32(skb, TCA_RED_MAX_P, q->parms.max_P))  in red_dump()
288 	struct red_sched_data *q = qdisc_priv(sch);  in red_dump_stats()  local
290 		.early	= q->stats.prob_drop + q->stats.forced_drop,  in red_dump_stats()
291 		.pdrop	= q->stats.pdrop,  in red_dump_stats()
292 		.other	= q->stats.other,  in red_dump_stats()
293 		.marked	= q->stats.prob_mark + q->stats.forced_mark,  in red_dump_stats()
302 	struct red_sched_data *q = qdisc_priv(sch);  in red_dump_class()  local
305 	tcm->tcm_info = q->qdisc->handle;  in red_dump_class()
312 	struct red_sched_data *q = qdisc_priv(sch);  in red_graft()  local
317 	*old = qdisc_replace(sch, new, &q->qdisc);  in red_graft()
323 	struct red_sched_data *q = qdisc_priv(sch);  in red_leaf()  local
324 	return q->qdisc;  in red_leaf()