74 	struct pie_vars vars;  member
90 static void pie_vars_init(struct pie_vars *vars)  in pie_vars_init()  argument
92 	vars->dq_count = DQCOUNT_INVALID;  in pie_vars_init()
93 	vars->avg_dq_rate = 0;  in pie_vars_init()
95 	vars->burst_time = PSCHED_NS2TICKS(100 * NSEC_PER_MSEC);  in pie_vars_init()
102 	u32 local_prob = q->vars.prob;  in drop_early()
106 	if (q->vars.burst_time > 0)  in drop_early()
112 	if ((q->vars.qdelay < q->params.target / 2)  in drop_early()
113 	    && (q->vars.prob < MAX_PROB / 5))  in drop_early()
128 		local_prob = q->vars.prob;  in drop_early()
149 	} else if (q->params.ecn && (q->vars.prob <= MAX_PROB / 10) &&  in pie_qdisc_enqueue()
255 	if (qlen >= QUEUE_THRESHOLD && q->vars.dq_count == DQCOUNT_INVALID) {  in pie_process_dequeue()
256 		q->vars.dq_tstamp = psched_get_time();  in pie_process_dequeue()
257 		q->vars.dq_count = 0;  in pie_process_dequeue()
269 	if (q->vars.dq_count != DQCOUNT_INVALID) {  in pie_process_dequeue()
270 		q->vars.dq_count += skb->len;  in pie_process_dequeue()
272 		if (q->vars.dq_count >= QUEUE_THRESHOLD) {  in pie_process_dequeue()
274 			u32 dtime = now - q->vars.dq_tstamp;  in pie_process_dequeue()
275 			u32 count = q->vars.dq_count << PIE_SCALE;  in pie_process_dequeue()
282 			if (q->vars.avg_dq_rate == 0)  in pie_process_dequeue()
283 				q->vars.avg_dq_rate = count;  in pie_process_dequeue()
285 				q->vars.avg_dq_rate =  in pie_process_dequeue()
286 				    (q->vars.avg_dq_rate -  in pie_process_dequeue()
287 				     (q->vars.avg_dq_rate >> 3)) + (count >> 3);  in pie_process_dequeue()
295 				q->vars.dq_count = DQCOUNT_INVALID;  in pie_process_dequeue()
297 				q->vars.dq_count = 0;  in pie_process_dequeue()
298 				q->vars.dq_tstamp = psched_get_time();  in pie_process_dequeue()
301 			if (q->vars.burst_time > 0) {  in pie_process_dequeue()
302 				if (q->vars.burst_time > dtime)  in pie_process_dequeue()
303 					q->vars.burst_time -= dtime;  in pie_process_dequeue()
305 					q->vars.burst_time = 0;  in pie_process_dequeue()
316 	psched_time_t qdelay_old = q->vars.qdelay;	/* in pschedtime */  in calculate_probability()
322 	q->vars.qdelay_old = q->vars.qdelay;  in calculate_probability()
324 	if (q->vars.avg_dq_rate > 0)  in calculate_probability()
325 		qdelay = (qlen << PIE_SCALE) / q->vars.avg_dq_rate;  in calculate_probability()
346 	if (q->vars.prob < MAX_PROB / 100) {  in calculate_probability()
351 	} else if (q->vars.prob < MAX_PROB / 10) {  in calculate_probability()
367 	oldprob = q->vars.prob;  in calculate_probability()
371 	    q->vars.prob >= MAX_PROB / 10)  in calculate_probability()
382 	q->vars.prob += delta;  in calculate_probability()
386 		if (q->vars.prob < oldprob) {  in calculate_probability()
387 			q->vars.prob = MAX_PROB;  in calculate_probability()
397 		if (q->vars.prob > oldprob)  in calculate_probability()
398 			q->vars.prob = 0;  in calculate_probability()
406 		q->vars.prob = (q->vars.prob * 98) / 100;  in calculate_probability()
408 	q->vars.qdelay = qdelay;  in calculate_probability()
409 	q->vars.qlen_old = qlen;  in calculate_probability()
417 	if ((q->vars.qdelay < q->params.target / 2) &&  in calculate_probability()
418 	    (q->vars.qdelay_old < q->params.target / 2) &&  in calculate_probability()
419 	    (q->vars.prob == 0) &&  in calculate_probability()
420 	    (q->vars.avg_dq_rate > 0))  in calculate_probability()
421 		pie_vars_init(&q->vars);  in calculate_probability()
445 	pie_vars_init(&q->vars);  in pie_init()
494 		.prob		= q->vars.prob,  in pie_dump_stats()
495 		.delay		= ((u32) PSCHED_TICKS2NS(q->vars.qdelay)) /  in pie_dump_stats()
498 		.avg_dq_rate	= q->vars.avg_dq_rate *  in pie_dump_stats()
526 	pie_vars_init(&q->vars);  in pie_reset()