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net: sched: register noqueue qdisc

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This way users can attach noqueue just like any other qdisc using tc
without having to mess with tx_queue_len first.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Phil Sutter 2015-08-27 21:21:38 +02:00 committed by David S. Miller
parent db4094bca7
commit d66d6c3152
3 changed files with 13 additions and 1 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

1
include/net/sch_generic.h
View file

@ -340,6 +340,7 @@ extern struct Qdisc noop_qdisc;
extern struct Qdisc_ops noop_qdisc_ops;
extern struct Qdisc_ops pfifo_fast_ops;
extern struct Qdisc_ops mq_qdisc_ops;
extern struct Qdisc_ops noqueue_qdisc_ops;
extern const struct Qdisc_ops *default_qdisc_ops;
struct Qdisc_class_common {

1
net/sched/sch_api.c
View file

@ -1942,6 +1942,7 @@ static int __init pktsched_init(void)
register_qdisc(&bfifo_qdisc_ops);
register_qdisc(&pfifo_head_drop_qdisc_ops);
register_qdisc(&mq_qdisc_ops);
register_qdisc(&noqueue_qdisc_ops);
rtnl_register(PF_UNSPEC, RTM_NEWQDISC, tc_modify_qdisc, NULL, NULL);
rtnl_register(PF_UNSPEC, RTM_DELQDISC, tc_get_qdisc, NULL, NULL);

12
net/sched/sch_generic.c
View file

@ -416,9 +416,19 @@ struct Qdisc noop_qdisc = {
};
EXPORT_SYMBOL(noop_qdisc);
static struct Qdisc_ops noqueue_qdisc_ops __read_mostly = {
static int noqueue_init(struct Qdisc *qdisc, struct nlattr *opt)
{
/* register_qdisc() assigns a default of noop_enqueue if unset,
* but __dev_queue_xmit() treats noqueue only as such
* if this is NULL - so clear it here. */
qdisc->enqueue = NULL;
return 0;
}
struct Qdisc_ops noqueue_qdisc_ops __read_mostly = {
.id = "noqueue",
.priv_size = 0,
.init = noqueue_init,
.enqueue = noop_enqueue,
.dequeue = noop_dequeue,
.peek = noop_dequeue,