net: sched: implement qstat helper routines
This adds helpers to manipulate qstats logic and replaces locations
that touch the counters directly. This simplifies future patches
to push qstats onto per cpu counters.
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/sch_choke.c b/net/sched/sch_choke.c
index 8abc262..c009eb9 100644
--- a/net/sched/sch_choke.c
+++ b/net/sched/sch_choke.c
@@ -127,7 +127,7 @@
if (idx == q->tail)
choke_zap_tail_holes(q);
- sch->qstats.backlog -= qdisc_pkt_len(skb);
+ qdisc_qstats_backlog_dec(sch, skb);
qdisc_drop(skb, sch);
qdisc_tree_decrease_qlen(sch, 1);
--sch->q.qlen;
@@ -302,7 +302,7 @@
if (q->vars.qavg > p->qth_max) {
q->vars.qcount = -1;
- sch->qstats.overlimits++;
+ qdisc_qstats_overlimit(sch);
if (use_harddrop(q) || !use_ecn(q) ||
!INET_ECN_set_ce(skb)) {
q->stats.forced_drop++;
@@ -315,7 +315,7 @@
q->vars.qcount = 0;
q->vars.qR = red_random(p);
- sch->qstats.overlimits++;
+ qdisc_qstats_overlimit(sch);
if (!use_ecn(q) || !INET_ECN_set_ce(skb)) {
q->stats.prob_drop++;
goto congestion_drop;
@@ -332,7 +332,7 @@
q->tab[q->tail] = skb;
q->tail = (q->tail + 1) & q->tab_mask;
++sch->q.qlen;
- sch->qstats.backlog += qdisc_pkt_len(skb);
+ qdisc_qstats_backlog_inc(sch, skb);
return NET_XMIT_SUCCESS;
}
@@ -345,7 +345,7 @@
other_drop:
if (ret & __NET_XMIT_BYPASS)
- sch->qstats.drops++;
+ qdisc_qstats_drop(sch);
kfree_skb(skb);
return ret;
}
@@ -365,7 +365,7 @@
q->tab[q->head] = NULL;
choke_zap_head_holes(q);
--sch->q.qlen;
- sch->qstats.backlog -= qdisc_pkt_len(skb);
+ qdisc_qstats_backlog_dec(sch, skb);
qdisc_bstats_update(sch, skb);
return skb;
@@ -460,7 +460,7 @@
ntab[tail++] = skb;
continue;
}
- sch->qstats.backlog -= qdisc_pkt_len(skb);
+ qdisc_qstats_backlog_dec(sch, skb);
--sch->q.qlen;
qdisc_drop(skb, sch);
}