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Diffstat (limited to 'net/sched')
-rw-r--r--net/sched/sch_red.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/net/sched/sch_red.c b/net/sched/sch_red.c
index d617161f8dd3..8f5a85bf9d10 100644
--- a/net/sched/sch_red.c
+++ b/net/sched/sch_red.c
@@ -39,6 +39,7 @@
struct red_sched_data {
u32 limit; /* HARD maximal queue length */
unsigned char flags;
+ struct timer_list adapt_timer;
struct red_parms parms;
struct red_stats stats;
struct Qdisc *qdisc;
@@ -161,6 +162,8 @@ static void red_reset(struct Qdisc *sch)
static void red_destroy(struct Qdisc *sch)
{
struct red_sched_data *q = qdisc_priv(sch);
+
+ del_timer_sync(&q->adapt_timer);
qdisc_destroy(q->qdisc);
}
@@ -209,6 +212,10 @@ static int red_change(struct Qdisc *sch, struct nlattr *opt)
ctl->Plog, ctl->Scell_log,
nla_data(tb[TCA_RED_STAB]));
+ del_timer(&q->adapt_timer);
+ if (ctl->flags & TC_RED_ADAPTATIVE)
+ mod_timer(&q->adapt_timer, jiffies + HZ/2);
+
if (!q->qdisc->q.qlen)
red_start_of_idle_period(&q->parms);
@@ -216,11 +223,24 @@ static int red_change(struct Qdisc *sch, struct nlattr *opt)
return 0;
}
+static inline void red_adaptative_timer(unsigned long arg)
+{
+ struct Qdisc *sch = (struct Qdisc *)arg;
+ struct red_sched_data *q = qdisc_priv(sch);
+ spinlock_t *root_lock = qdisc_lock(qdisc_root_sleeping(sch));
+
+ spin_lock(root_lock);
+ red_adaptative_algo(&q->parms);
+ mod_timer(&q->adapt_timer, jiffies + HZ/2);
+ spin_unlock(root_lock);
+}
+
static int red_init(struct Qdisc *sch, struct nlattr *opt)
{
struct red_sched_data *q = qdisc_priv(sch);
q->qdisc = &noop_qdisc;
+ setup_timer(&q->adapt_timer, red_adaptative_timer, (unsigned long)sch);
return red_change(sch, opt);
}
@@ -243,6 +263,7 @@ static int red_dump(struct Qdisc *sch, struct sk_buff *skb)
if (opts == NULL)
goto nla_put_failure;
NLA_PUT(skb, TCA_RED_PARMS, sizeof(opt), &opt);
+ NLA_PUT_U32(skb, TCA_RED_MAX_P, q->parms.max_P);
return nla_nest_end(skb, opts);
nla_put_failure: