From: John Fastabend <john.fastabend@gmail.com>
Date: Thu, 7 Dec 2017 09:55:07 -0800
Subject: net: sched: provide per cpu qstat helpers
Patch-mainline: v4.16-rc1
Git-commit: 40bd036219dca86938fd5bd84b3fc19ffa812596
References: bsc#1109837
The per cpu qstats support was added with per cpu bstat support which
is currently used by the ingress qdisc. This patch adds a set of
helpers needed to make other qdiscs that use qstats per cpu as well.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
include/net/sch_generic.h | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -632,12 +632,39 @@ static inline void qdisc_qstats_backlog_
sch->qstats.backlog -= qdisc_pkt_len(skb);
}
+static inline void qdisc_qstats_cpu_backlog_dec(struct Qdisc *sch,
+ const struct sk_buff *skb)
+{
+ this_cpu_sub(sch->cpu_qstats->backlog, qdisc_pkt_len(skb));
+}
+
static inline void qdisc_qstats_backlog_inc(struct Qdisc *sch,
const struct sk_buff *skb)
{
sch->qstats.backlog += qdisc_pkt_len(skb);
}
+static inline void qdisc_qstats_cpu_backlog_inc(struct Qdisc *sch,
+ const struct sk_buff *skb)
+{
+ this_cpu_add(sch->cpu_qstats->backlog, qdisc_pkt_len(skb));
+}
+
+static inline void qdisc_qstats_cpu_qlen_inc(struct Qdisc *sch)
+{
+ this_cpu_inc(sch->cpu_qstats->qlen);
+}
+
+static inline void qdisc_qstats_cpu_qlen_dec(struct Qdisc *sch)
+{
+ this_cpu_dec(sch->cpu_qstats->qlen);
+}
+
+static inline void qdisc_qstats_cpu_requeues_inc(struct Qdisc *sch)
+{
+ this_cpu_inc(sch->cpu_qstats->requeues);
+}
+
static inline void __qdisc_qstats_drop(struct Qdisc *sch, int count)
{
sch->qstats.drops += count;
@@ -845,6 +872,14 @@ static inline void rtnl_qdisc_drop(struc
qdisc_qstats_drop(sch);
}
+static inline int qdisc_drop_cpu(struct sk_buff *skb, struct Qdisc *sch,
+ struct sk_buff **to_free)
+{
+ __qdisc_drop(skb, to_free);
+ qdisc_qstats_cpu_drop(sch);
+
+ return NET_XMIT_DROP;
+}
static inline int qdisc_drop(struct sk_buff *skb, struct Qdisc *sch,
struct sk_buff **to_free)