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authorCong Wang <xiyou.wangcong@gmail.com>2020-05-26 21:35:24 -0700
committerDavid S. Miller <davem@davemloft.net>2020-05-27 15:05:49 -0700
commita34dac0b9055202cf9c64e08d8d8dc5e23029d3a (patch)
treeb2276cda43830ba8dc9702c5dffaff950d0bee44 /include/trace
parentnet_sched: use qdisc_reset() in qdisc_destroy() (diff)
downloadwireguard-linux-a34dac0b9055202cf9c64e08d8d8dc5e23029d3a.tar.xz
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net_sched: add tracepoints for qdisc_reset() and qdisc_destroy()
Add two tracepoints for qdisc_reset() and qdisc_destroy() to track qdisc resetting and destroying. Sample output: tc-756 [000] ...3 138.355662: qdisc_reset: dev=ens3 kind=pfifo_fast parent=ffff:ffff handle=0:0 tc-756 [000] ...1 138.355720: qdisc_reset: dev=ens3 kind=pfifo_fast parent=ffff:ffff handle=0:0 tc-756 [000] ...1 138.355867: qdisc_reset: dev=ens3 kind=pfifo_fast parent=ffff:ffff handle=0:0 tc-756 [000] ...1 138.355930: qdisc_destroy: dev=ens3 kind=pfifo_fast parent=ffff:ffff handle=0:0 tc-757 [000] ...2 143.073780: qdisc_reset: dev=ens3 kind=fq_codel parent=ffff:ffff handle=8001:0 tc-757 [000] ...1 143.073878: qdisc_reset: dev=ens3 kind=fq_codel parent=ffff:ffff handle=8001:0 tc-757 [000] ...1 143.074114: qdisc_reset: dev=ens3 kind=fq_codel parent=ffff:ffff handle=8001:0 tc-757 [000] ...1 143.074228: qdisc_destroy: dev=ens3 kind=fq_codel parent=ffff:ffff handle=8001:0 Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/trace')
-rw-r--r--include/trace/events/qdisc.h52
1 files changed, 52 insertions, 0 deletions
diff --git a/include/trace/events/qdisc.h b/include/trace/events/qdisc.h
index 0d1a9ebf55ba..2b948801afa3 100644
--- a/include/trace/events/qdisc.h
+++ b/include/trace/events/qdisc.h
@@ -8,6 +8,8 @@
#include <linux/netdevice.h>
#include <linux/tracepoint.h>
#include <linux/ftrace.h>
+#include <linux/pkt_sched.h>
+#include <net/sch_generic.h>
TRACE_EVENT(qdisc_dequeue,
@@ -44,6 +46,56 @@ TRACE_EVENT(qdisc_dequeue,
__entry->txq_state, __entry->packets, __entry->skbaddr )
);
+TRACE_EVENT(qdisc_reset,
+
+ TP_PROTO(struct Qdisc *q),
+
+ TP_ARGS(q),
+
+ TP_STRUCT__entry(
+ __string( dev, qdisc_dev(q) )
+ __string( kind, q->ops->id )
+ __field( u32, parent )
+ __field( u32, handle )
+ ),
+
+ TP_fast_assign(
+ __assign_str(dev, qdisc_dev(q));
+ __assign_str(kind, q->ops->id);
+ __entry->parent = q->parent;
+ __entry->handle = q->handle;
+ ),
+
+ TP_printk("dev=%s kind=%s parent=%x:%x handle=%x:%x", __get_str(dev),
+ __get_str(kind), TC_H_MAJ(__entry->parent) >> 16, TC_H_MIN(__entry->parent),
+ TC_H_MAJ(__entry->handle) >> 16, TC_H_MIN(__entry->handle))
+);
+
+TRACE_EVENT(qdisc_destroy,
+
+ TP_PROTO(struct Qdisc *q),
+
+ TP_ARGS(q),
+
+ TP_STRUCT__entry(
+ __string( dev, qdisc_dev(q) )
+ __string( kind, q->ops->id )
+ __field( u32, parent )
+ __field( u32, handle )
+ ),
+
+ TP_fast_assign(
+ __assign_str(dev, qdisc_dev(q));
+ __assign_str(kind, q->ops->id);
+ __entry->parent = q->parent;
+ __entry->handle = q->handle;
+ ),
+
+ TP_printk("dev=%s kind=%s parent=%x:%x handle=%x:%x", __get_str(dev),
+ __get_str(kind), TC_H_MAJ(__entry->parent) >> 16, TC_H_MIN(__entry->parent),
+ TC_H_MAJ(__entry->handle) >> 16, TC_H_MIN(__entry->handle))
+);
+
#endif /* _TRACE_QDISC_H */
/* This part must be outside protection */