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qdisc: add new field for qdisc_enqueue tracepoint 

qdisc_enqueue tracepoint can work with qdisc:qdisc_dequeue
to measure packets latency in qdisc queues.

Add a new field txq for it, then we can retrieve more info.

Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tonghao Zhang 2021-07-27 21:14:13 +08:00 committed by David S. Miller
parent ef17e2ac21
commit 409f386b8e
1 changed files with 2 additions and 0 deletions
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2
include/trace/events/qdisc.h
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@ -54,6 +54,7 @@ TRACE_EVENT(qdisc_enqueue,
TP_STRUCT__entry(
__field(struct Qdisc *, qdisc)
__field(const struct netdev_queue *, txq)
__field(void *, skbaddr)
__field(int, ifindex)
__field(u32, handle)
@ -62,6 +63,7 @@ TRACE_EVENT(qdisc_enqueue,
TP_fast_assign(
__entry->qdisc = qdisc;
__entry->txq = txq;
__entry->skbaddr = skb;
__entry->ifindex = txq->dev ? txq->dev->ifindex : 0;
__entry->handle = qdisc->handle;