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| author |   David Ward <david.ward@ll.mit.edu> | 2012-09-13 05:22:34 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2012-09-13 16:10:13 -0400 |
| commit | 1fe37b106b039d9358fd1211c39b1fa199e547a8 (patch) | |
| tree | c7b84405616fc88087f174f4e4934a65a483032e /net/sched | |
| parent | net_sched: gred: eliminate redundant DP prio comparisons (diff) | |
| download | linux-dev-1fe37b106b039d9358fd1211c39b1fa199e547a8.tar.xz linux-dev-1fe37b106b039d9358fd1211c39b1fa199e547a8.zip | |
net_sched: gred: fix qave reporting via netlink
q->vars.qavg is a Wlog scaled value, but q->backlog is not. In order
to pass q->vars.qavg as the backlog value, we need to un-scale it.
Additionally, the qave value returned via netlink should not be Wlog
scaled, so we need to un-scale the result of red_calc_qavg().
This caused artificially high values for "Average Queue" to be shown
by 'tc -s -d qdisc', but did not affect the actual operation of GRED.
Signed-off-by: David Ward <david.ward@ll.mit.edu>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched')
| -rw-r--r-- | net/sched/sch_gred.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/net/sched/sch_gred.c b/net/sched/sch_gred.c index e19d4ebfea1c..b2570b59d85e 100644 --- a/net/sched/sch_gred.c +++ b/net/sched/sch_gred.c @@ -534,6 +534,7 @@ static int gred_dump(struct Qdisc *sch, struct sk_buff *skb) for (i = 0; i < MAX_DPs; i++) { struct gred_sched_data *q = table->tab[i]; struct tc_gred_qopt opt; + unsigned long qavg; memset(&opt, 0, sizeof(opt)); @@ -565,7 +566,9 @@ static int gred_dump(struct Qdisc *sch, struct sk_buff *skb) if (gred_wred_mode(table)) gred_load_wred_set(table, q); - opt.qave = red_calc_qavg(&q->parms, &q->vars, q->vars.qavg); + qavg = red_calc_qavg(&q->parms, &q->vars, + q->vars.qavg >> q->parms.Wlog); + opt.qave = qavg >> q->parms.Wlog; append_opt: if (nla_append(skb, sizeof(opt), &opt) < 0) |