提交 7051703b 编写于 作者: T Thomas Graf 提交者: Thomas Graf

[PKT_SCHED]: GRED: Dont abuse default VQ for equalizing

Introduces a new red parameter set for use in equalize mode,
although only the qavg variable and the idle period marker are
being used for now this makes it possible to allow a separate
parameter set to be used for equalize later on.

The use of this separate parameter set fixes a bogus start of
an idle period in gred_drop() which did start an idle period
on the default VQ even if equalize mode was disabled.
Signed-off-by: NThomas Graf <tgraf@suug.ch>
Signed-off-by: NArnaldo Carvalho de Melo <acme@mandriva.com>
上级 4a591834
......@@ -89,6 +89,7 @@ struct gred_sched
unsigned long flags;
u32 DPs;
u32 def;
struct red_parms wred_set;
};
static inline int gred_wred_mode(struct gred_sched *table)
......@@ -158,6 +159,19 @@ static inline u16 tc_index_to_dp(struct sk_buff *skb)
return skb->tc_index & GRED_VQ_MASK;
}
static inline void gred_load_wred_set(struct gred_sched *table,
struct gred_sched_data *q)
{
q->parms.qavg = table->wred_set.qavg;
q->parms.qidlestart = table->wred_set.qidlestart;
}
static inline void gred_store_wred_set(struct gred_sched *table,
struct gred_sched_data *q)
{
table->wred_set.qavg = q->parms.qavg;
}
static int
gred_enqueue(struct sk_buff *skb, struct Qdisc* sch)
{
......@@ -204,8 +218,7 @@ gred_enqueue(struct sk_buff *skb, struct Qdisc* sch)
if (gred_wred_mode(t)) {
qavg = 0;
q->parms.qavg = t->tab[t->def]->parms.qavg;
q->parms.qidlestart = t->tab[t->def]->parms.qidlestart;
gred_load_wred_set(t, q);
}
q->parms.qavg = red_calc_qavg(&q->parms, gred_backlog(t, q, sch));
......@@ -214,7 +227,7 @@ gred_enqueue(struct sk_buff *skb, struct Qdisc* sch)
red_end_of_idle_period(&q->parms);
if (gred_wred_mode(t))
t->tab[t->def]->parms.qavg = q->parms.qavg;
gred_store_wred_set(t, q);
switch (red_action(&q->parms, q->parms.qavg + qavg)) {
case RED_DONT_MARK:
......@@ -293,14 +306,8 @@ gred_dequeue(struct Qdisc* sch)
return skb;
}
if (gred_wred_mode(t)) {
q= t->tab[t->def];
if (!q)
D2PRINTK("no default VQ set: Results will be "
"screwed up\n");
else
red_start_of_idle_period(&q->parms);
}
if (gred_wred_mode(t))
red_start_of_idle_period(&t->wred_set);
return NULL;
}
......@@ -334,13 +341,9 @@ static unsigned int gred_drop(struct Qdisc* sch)
return len;
}
q=t->tab[t->def];
if (!q) {
D2PRINTK("no default VQ set: Results might be screwed up\n");
return 0;
}
if (gred_wred_mode(t))
red_start_of_idle_period(&t->wred_set);
red_start_of_idle_period(&q->parms);
return 0;
}
......
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