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Commit 40bd0362 authored by John Fastabend's avatar John Fastabend Committed by David S. Miller
Browse files

net: sched: provide per cpu qstat helpers 



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: default avatarJohn Fastabend <john.fastabend@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 29b86cda

include/net/sch_generic.h

+35 −0
Original line number Diff line number Diff line
@@ -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)