sch_sfq.c (6f9e98f7a96fdf4d621b8241d5a8a55c692de373) sch_sfq.c (1e90474c377e92db7262a8968a45c1dd980ca9e5)
1/*
2 * net/sched/sch_sfq.c Stochastic Fairness Queueing discipline.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 *

--- 383 unchanged lines hidden (view full) ---

392 struct sfq_sched_data *q = qdisc_priv(sch);
393
394 q->perturbation = net_random();
395
396 if (q->perturb_period)
397 mod_timer(&q->perturb_timer, jiffies + q->perturb_period);
398}
399
1/*
2 * net/sched/sch_sfq.c Stochastic Fairness Queueing discipline.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 *

--- 383 unchanged lines hidden (view full) ---

392 struct sfq_sched_data *q = qdisc_priv(sch);
393
394 q->perturbation = net_random();
395
396 if (q->perturb_period)
397 mod_timer(&q->perturb_timer, jiffies + q->perturb_period);
398}
399
400static int sfq_change(struct Qdisc *sch, struct rtattr *opt)
400static int sfq_change(struct Qdisc *sch, struct nlattr *opt)
401{
402 struct sfq_sched_data *q = qdisc_priv(sch);
401{
402 struct sfq_sched_data *q = qdisc_priv(sch);
403 struct tc_sfq_qopt *ctl = RTA_DATA(opt);
403 struct tc_sfq_qopt *ctl = nla_data(opt);
404 unsigned int qlen;
405
404 unsigned int qlen;
405
406 if (opt->rta_len < RTA_LENGTH(sizeof(*ctl)))
406 if (opt->nla_len < nla_attr_size(sizeof(*ctl)))
407 return -EINVAL;
408
409 sch_tree_lock(sch);
410 q->quantum = ctl->quantum ? : psched_mtu(sch->dev);
411 q->perturb_period = ctl->perturb_period * HZ;
412 if (ctl->limit)
413 q->limit = min_t(u32, ctl->limit, SFQ_DEPTH - 1);
414

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421 if (q->perturb_period) {
422 mod_timer(&q->perturb_timer, jiffies + q->perturb_period);
423 q->perturbation = net_random();
424 }
425 sch_tree_unlock(sch);
426 return 0;
427}
428
407 return -EINVAL;
408
409 sch_tree_lock(sch);
410 q->quantum = ctl->quantum ? : psched_mtu(sch->dev);
411 q->perturb_period = ctl->perturb_period * HZ;
412 if (ctl->limit)
413 q->limit = min_t(u32, ctl->limit, SFQ_DEPTH - 1);
414

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421 if (q->perturb_period) {
422 mod_timer(&q->perturb_timer, jiffies + q->perturb_period);
423 q->perturbation = net_random();
424 }
425 sch_tree_unlock(sch);
426 return 0;
427}
428
429static int sfq_init(struct Qdisc *sch, struct rtattr *opt)
429static int sfq_init(struct Qdisc *sch, struct nlattr *opt)
430{
431 struct sfq_sched_data *q = qdisc_priv(sch);
432 int i;
433
434 q->perturb_timer.function = sfq_perturbation;
435 q->perturb_timer.data = (unsigned long)sch;;
436 init_timer_deferrable(&q->perturb_timer);
437

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476
477 opt.quantum = q->quantum;
478 opt.perturb_period = q->perturb_period / HZ;
479
480 opt.limit = q->limit;
481 opt.divisor = SFQ_HASH_DIVISOR;
482 opt.flows = q->limit;
483
430{
431 struct sfq_sched_data *q = qdisc_priv(sch);
432 int i;
433
434 q->perturb_timer.function = sfq_perturbation;
435 q->perturb_timer.data = (unsigned long)sch;;
436 init_timer_deferrable(&q->perturb_timer);
437

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476
477 opt.quantum = q->quantum;
478 opt.perturb_period = q->perturb_period / HZ;
479
480 opt.limit = q->limit;
481 opt.divisor = SFQ_HASH_DIVISOR;
482 opt.flows = q->limit;
483
484 RTA_PUT(skb, TCA_OPTIONS, sizeof(opt), &opt);
484 NLA_PUT(skb, TCA_OPTIONS, sizeof(opt), &opt);
485
486 return skb->len;
487
485
486 return skb->len;
487
488rtattr_failure:
488nla_put_failure:
489 nlmsg_trim(skb, b);
490 return -1;
491}
492
493static struct Qdisc_ops sfq_qdisc_ops __read_mostly = {
494 .next = NULL,
495 .cl_ops = NULL,
496 .id = "sfq",

--- 24 unchanged lines hidden --- 		489 nlmsg_trim(skb, b);
490 return -1;
491}
492
493static struct Qdisc_ops sfq_qdisc_ops __read_mostly = {
494 .next = NULL,
495 .cl_ops = NULL,
496 .id = "sfq",

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