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-rw-r--r--include/net/codel.h10
1 files changed, 7 insertions, 3 deletions
diff --git a/include/net/codel.h b/include/net/codel.h
index 8c0f78f209e8..267e70210061 100644
--- a/include/net/codel.h
+++ b/include/net/codel.h
@@ -121,12 +121,14 @@ static inline u32 codel_time_to_us(codel_time_t val)
* @target: target queue size (in time units)
* @ce_threshold: threshold for marking packets with ECN CE
* @interval: width of moving time window
+ * @mtu: device mtu, or minimal queue backlog in bytes.
* @ecn: is Explicit Congestion Notification enabled
*/
struct codel_params {
codel_time_t target;
codel_time_t ce_threshold;
codel_time_t interval;
+ u32 mtu;
bool ecn;
};
@@ -172,10 +174,12 @@ struct codel_stats {
#define CODEL_DISABLED_THRESHOLD INT_MAX
-static void codel_params_init(struct codel_params *params)
+static void codel_params_init(struct codel_params *params,
+ const struct Qdisc *sch)
{
params->interval = MS2TIME(100);
params->target = MS2TIME(5);
+ params->mtu = psched_mtu(qdisc_dev(sch));
params->ce_threshold = CODEL_DISABLED_THRESHOLD;
params->ecn = false;
}
@@ -187,7 +191,7 @@ static void codel_vars_init(struct codel_vars *vars)
static void codel_stats_init(struct codel_stats *stats)
{
- stats->maxpacket = 256;
+ stats->maxpacket = 0;
}
/*
@@ -241,7 +245,7 @@ static bool codel_should_drop(const struct sk_buff *skb,
stats->maxpacket = qdisc_pkt_len(skb);
if (codel_time_before(vars->ldelay, params->target) ||
- sch->qstats.backlog <= stats->maxpacket) {
+ sch->qstats.backlog <= params->mtu) {
/* went below - stay below for at least interval */
vars->first_above_time = 0;
return false;