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Commit c4266263 authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
Browse files

net_sched: sch_sfq: add backlog info in sfq_dump_class_stats() 



We currently return for each active SFQ slot the number of packets in
queue. We can also give number of bytes accounted for these packets.

tc -s class show dev ifb0

Before patch :

class sfq 11:3d9 parent 11:
 (dropped 0, overlimits 0 requeues 0)
 backlog 0b 3p requeues 0
 allot 1266

After patch :

class sfq 11:3e4 parent 11:
 (dropped 0, overlimits 0 requeues 0)
 backlog 4380b 3p requeues 0
 allot 1212

Signed-off-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent f955e141

net/sched/sch_sfq.c

+6 −1
Original line number Diff line number Diff line
@@ -548,8 +548,13 @@ static int sfq_dump_class_stats(struct Qdisc *sch, unsigned long cl, 
{

	struct sfq_sched_data *q = qdisc_priv(sch);

	sfq_index idx = q->ht[cl-1];

	struct gnet_stats_queue qs = { .qlen = q->qs[idx].qlen };

	struct sk_buff_head *list = &q->qs[idx];

	struct gnet_stats_queue qs = { .qlen = list->qlen };

	struct tc_sfq_xstats xstats = { .allot = q->allot[idx] };

	struct sk_buff *skb;



	skb_queue_walk(list, skb)

		qs.backlog += qdisc_pkt_len(skb);



	if (gnet_stats_copy_queue(d, &qs) < 0)

		return -1;