From: Vitaly Kuznetsov <vkuznets@redhat.com>
To: devel@linuxdriverproject.org
Cc: linux-kernel@vger.kernel.org,
"K. Y. Srinivasan" <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Stephen Hemminger <sthemmin@microsoft.com>,
Steven Rostedt <rostedt@goodmis.org>,
Dexuan Cui <decui@microsoft.com>
Subject: [PATCH v3 17/17] hyper-v: trace channel events
Date: Thu, 5 Oct 2017 16:50:44 +0200 [thread overview]
Message-ID: <20171005145044.12181-18-vkuznets@redhat.com> (raw)
In-Reply-To: <20171005145044.12181-1-vkuznets@redhat.com>
Added an additional set of trace points for when channel gets notified
or signals host.
Suggested-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
drivers/hv/channel.c | 2 ++
drivers/hv/connection.c | 2 ++
drivers/hv/hv_trace.h | 23 +++++++++++++++++++++++
drivers/hv/vmbus_drv.c | 2 ++
4 files changed, 29 insertions(+)
diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index 3efe9e8ab079..4824a5bc178d 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -43,6 +43,8 @@ void vmbus_setevent(struct vmbus_channel *channel)
{
struct hv_monitor_page *monitorpage;
+ trace_vmbus_setevent(channel);
+
/*
* For channels marked as in "low latency" mode
* bypass the monitor page mechanism.
diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
index 5e36f86d0b0c..8acd2e0e7c8e 100644
--- a/drivers/hv/connection.c
+++ b/drivers/hv/connection.c
@@ -322,6 +322,8 @@ void vmbus_on_event(unsigned long data)
struct vmbus_channel *channel = (void *) data;
unsigned long time_limit = jiffies + 2;
+ trace_vmbus_on_event(channel);
+
do {
void (*callback_fn)(void *);
diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h
index 5382d9630306..d635ee95b20d 100644
--- a/drivers/hv/hv_trace.h
+++ b/drivers/hv/hv_trace.h
@@ -294,6 +294,29 @@ TRACE_EVENT(vmbus_send_tl_connect_request,
)
);
+DECLARE_EVENT_CLASS(vmbus_channel,
+ TP_PROTO(const struct vmbus_channel *channel),
+ TP_ARGS(channel),
+ TP_STRUCT__entry(__field(u32, relid)),
+ TP_fast_assign(__entry->relid = channel->offermsg.child_relid),
+ TP_printk("relid 0x%x", __entry->relid)
+);
+
+DEFINE_EVENT(vmbus_channel, vmbus_chan_sched,
+ TP_PROTO(const struct vmbus_channel *channel),
+ TP_ARGS(channel)
+);
+
+DEFINE_EVENT(vmbus_channel, vmbus_setevent,
+ TP_PROTO(const struct vmbus_channel *channel),
+ TP_ARGS(channel)
+);
+
+DEFINE_EVENT(vmbus_channel, vmbus_on_event,
+ TP_PROTO(const struct vmbus_channel *channel),
+ TP_ARGS(channel)
+);
+
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index ced33b1982c4..c882c4a9d9f5 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -945,6 +945,8 @@ static void vmbus_chan_sched(struct hv_per_cpu_context *hv_cpu)
if (channel->rescind)
continue;
+ trace_vmbus_chan_sched(channel);
+
switch (channel->callback_mode) {
case HV_CALL_ISR:
vmbus_channel_isr(channel);
--
2.13.6
next prev parent reply other threads:[~2017-10-05 14:51 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-05 14:50 [PATCH v3 00/17] Hyper-V: add tracing to VMBus module and trace messages/events Vitaly Kuznetsov
2017-10-05 14:50 ` [PATCH v3 01/17] hyper-v: trace vmbus_on_msg_dpc() Vitaly Kuznetsov
2017-10-05 14:50 ` [PATCH v3 02/17] hyper-v: trace vmbus_on_message() Vitaly Kuznetsov
2017-10-05 14:50 ` [PATCH v3 03/17] hyper-v: trace vmbus_onoffer() Vitaly Kuznetsov
2017-10-05 14:50 ` [PATCH v3 04/17] hyper-v: trace vmbus_onoffer_rescind() Vitaly Kuznetsov
2017-10-05 14:50 ` [PATCH v3 05/17] hyper-v: trace vmbus_onopen_result() Vitaly Kuznetsov
2017-10-05 14:50 ` [PATCH v3 06/17] hyper-v: trace vmbus_ongpadl_created() Vitaly Kuznetsov
2017-10-05 14:50 ` [PATCH v3 07/17] hyper-v: trace vmbus_ongpadl_torndown() Vitaly Kuznetsov
2017-10-05 14:50 ` [PATCH v3 08/17] hyper-v: trace vmbus_onversion_response() Vitaly Kuznetsov
2017-10-05 14:50 ` [PATCH v3 09/17] hyper-v: trace vmbus_request_offers() Vitaly Kuznetsov
2017-10-05 14:50 ` [PATCH v3 10/17] hyper-v: trace vmbus_open() Vitaly Kuznetsov
2017-10-05 14:50 ` [PATCH v3 11/17] hyper-v: trace vmbus_close_internal() Vitaly Kuznetsov
2017-10-05 14:50 ` [PATCH v3 12/17] hyper-v: trace vmbus_establish_gpadl() Vitaly Kuznetsov
2017-10-05 14:50 ` [PATCH v3 13/17] hyper-v: trace vmbus_teardown_gpadl() Vitaly Kuznetsov
2017-10-05 14:50 ` [PATCH v3 14/17] hyper-v: trace vmbus_negotiate_version() Vitaly Kuznetsov
2017-10-05 14:50 ` [PATCH v3 15/17] hyper-v: trace vmbus_release_relid() Vitaly Kuznetsov
2017-10-05 14:50 ` [PATCH v3 16/17] hyper-v: trace vmbus_send_tl_connect_request() Vitaly Kuznetsov
2017-10-05 14:50 ` Vitaly Kuznetsov [this message]
2017-10-05 15:49 ` [PATCH v3 00/17] Hyper-V: add tracing to VMBus module and trace messages/events Stephen Hemminger
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