static int fq_init(struct Qdisc *sch, struct nlattr *opt)
{
struct fq_sched_data *q = qdisc_priv(sch);
int err;
sch->limit = 10000;
q->flow_plimit = 100;
q->quantum = 2 * psched_mtu(qdisc_dev(sch));
q->initial_quantum = 10 * psched_mtu(qdisc_dev(sch));
q->flow_refill_delay = msecs_to_jiffies(40);
q->flow_max_rate = ~0U;
q->rate_enable = 1;
q->new_flows.first = NULL;
q->old_flows.first = NULL;
q->delayed = RB_ROOT;
q->fq_root = NULL;
q->fq_trees_log = ilog2(1024);
q->orphan_mask = 1024 - 1;
qdisc_watchdog_init(&q->watchdog, sch);
if (opt)
err = fq_change(sch, opt);
else
err = fq_resize(sch, q->fq_trees_log);
return err;
}
static int tbf_init(struct Qdisc* sch, struct rtattr *opt)
{
struct tbf_sched_data *q = qdisc_priv(sch);
if (opt == NULL)
return -EINVAL;
q->t_c = psched_get_time();
qdisc_watchdog_init(&q->watchdog, sch);
q->qdisc = &noop_qdisc;
return tbf_change(sch, opt);
}
/* Initialize Qdisc */
static int wfq_init(struct Qdisc *sch, struct nlattr *opt)
{
int i;
struct wfq_sched_data *q = qdisc_priv(sch);
struct Qdisc *child;
if(sch->parent != TC_H_ROOT)
return -EOPNOTSUPP;
q->tokens = 0;
q->time_ns = ktime_get_ns();
q->sum_len_bytes = 0;
qdisc_watchdog_init(&q->watchdog, sch);
/* Initialize per-priority variables */
for (i = 0; i < wfq_max_prio; i++)
{
q->prio_len_bytes[i] = 0;
q->virtual_time[i] = 0;
}
/* Initialize per-queue variables */
for (i = 0; i < wfq_max_queues; i++)
{
/* bfifo is in bytes */
child = fifo_create_dflt(sch,
&bfifo_qdisc_ops,
wfq_max_buffer_bytes);
if (likely(child))
(q->queues[i]).qdisc = child;
else
goto err;
(q->queues[i]).id = i;
(q->queues[i]).head_fin_time = 0;
(q->queues[i]).len_bytes = 0;
(q->queues[i]).count = 0;
(q->queues[i]).lastcount = 0;
(q->queues[i]).marking = false;
(q->queues[i]).rec_inv_sqrt = 0;
(q->queues[i]).first_above_time = 0;
(q->queues[i]).mark_next = false;
(q->queues[i]).ldelay = 0;
}
return wfq_change(sch, opt);
err:
wfq_destroy(sch);
return -ENOMEM;
}
static int tbf_init(struct Qdisc *sch, struct nlattr *opt,
struct netlink_ext_ack *extack)
{
struct tbf_sched_data *q = qdisc_priv(sch);
qdisc_watchdog_init(&q->watchdog, sch);
q->qdisc = &noop_qdisc;
if (!opt)
return -EINVAL;
q->t_c = ktime_get_ns();
return tbf_change(sch, opt, extack);
}
