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net: sched: provide per cpu qstat helpers

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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>
This commit is contained in:
John Fastabend 2017-12-07 09:55:07 -08:00 committed by David S. Miller
parent 29b86cdac0
commit 40bd036219
1 changed files with 35 additions and 0 deletions
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35
include/net/sch_generic.h
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@ -632,12 +632,39 @@ static inline void qdisc_qstats_backlog_dec(struct Qdisc *sch,
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(struct sk_buff *skb, struct Qdisc *sch)
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)