From: Stephen Hemminger <stephen@networkplumber.org>
To: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: devel@linuxdriverproject.org,
Stephen Hemminger <sthemmin@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
linux-kernel@vger.kernel.org,
Steven Rostedt <rostedt@goodmis.org>
Subject: Re: [PATCH v2 16/16] hyper-v: trace vmbus_send_tl_connect_request()
Date: Tue, 3 Oct 2017 10:10:01 -0700 [thread overview]
Message-ID: <20171003101001.2c8e4ad8@xeon-e3> (raw)
In-Reply-To: <20170929132602.24487-17-vkuznets@redhat.com>
I added an additional set of trace points for when channel gets notified or signals host.
diff -urNp linux-msft/drivers/hv/channel.c msft-4.14-rc3/drivers/hv/channel.c
--- linux-msft/drivers/hv/channel.c 2017-10-03 10:06:54.893209237 -0700
+++ msft-4.14-rc3/drivers/hv/channel.c 2017-10-03 10:07:35.501665114 -0700
@@ -55,6 +55,8 @@ void vmbus_setevent(struct vmbus_channel
{
struct hv_monitor_page *monitorpage;
+ trace_vmbus_setevent(channel);
+
/*
* For channels marked as in "low latency" mode
* bypass the monitor page mechanism.
diff -urNp linux-msft/drivers/hv/connection.c msft-4.14-rc3/drivers/hv/connection.c
--- linux-msft/drivers/hv/connection.c 2017-10-03 10:06:54.893209237 -0700
+++ msft-4.14-rc3/drivers/hv/connection.c 2017-10-03 10:07:35.501665114 -0700
@@ -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 -urNp linux-msft/drivers/hv/hv_trace.h msft-4.14-rc3/drivers/hv/hv_trace.h
--- linux-msft/drivers/hv/hv_trace.h 2017-10-03 10:08:06.514014019 -0700
+++ msft-4.14-rc3/drivers/hv/hv_trace.h 2017-10-03 10:07:35.505665159 -0700
@@ -294,6 +294,29 @@ TRACE_EVENT(vmbus_send_tl_connect_reques
)
);
+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 -urNp linux-msft/drivers/hv/vmbus_drv.c msft-4.14-rc3/drivers/hv/vmbus_drv.c
--- linux-msft/drivers/hv/vmbus_drv.c 2017-10-03 10:06:54.897209282 -0700
+++ msft-4.14-rc3/drivers/hv/vmbus_drv.c 2017-10-03 10:07:35.505665159 -0700
@@ -948,6 +948,7 @@ static void vmbus_chan_sched(struct hv_p
continue;
++channel->interrupts_in;
+ trace_vmbus_chan_sched(channel);
switch (channel->callback_mode) {
case HV_CALL_ISR:
next prev parent reply other threads:[~2017-10-03 17:10 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-29 13:25 [PATCH v2 00/16] Hyper-V: add tracing to VMBus module and trace all messages Vitaly Kuznetsov
2017-09-29 13:25 ` [PATCH v2 01/16] hyper-v: trace vmbus_on_msg_dpc() Vitaly Kuznetsov
2017-10-02 0:18 ` kbuild test robot
2017-10-04 0:08 ` Steven Rostedt
2017-09-29 13:25 ` [PATCH v2 02/16] hyper-v: trace vmbus_on_message() Vitaly Kuznetsov
2017-09-29 13:25 ` [PATCH v2 03/16] hyper-v: trace vmbus_onoffer() Vitaly Kuznetsov
2017-09-29 13:25 ` [PATCH v2 04/16] hyper-v: trace vmbus_onoffer_rescind() Vitaly Kuznetsov
2017-09-29 13:25 ` [PATCH v2 05/16] hyper-v: trace vmbus_onopen_result() Vitaly Kuznetsov
2017-09-29 13:25 ` [PATCH v2 06/16] hyper-v: trace vmbus_ongpadl_created() Vitaly Kuznetsov
2017-09-29 13:25 ` [PATCH v2 07/16] hyper-v: trace vmbus_ongpadl_torndown() Vitaly Kuznetsov
2017-09-29 13:25 ` [PATCH v2 08/16] hyper-v: trace vmbus_onversion_response() Vitaly Kuznetsov
2017-09-29 13:25 ` [PATCH v2 09/16] hyper-v: trace vmbus_request_offers() Vitaly Kuznetsov
2017-09-29 13:25 ` [PATCH v2 10/16] hyper-v: trace vmbus_open() Vitaly Kuznetsov
2017-09-29 13:25 ` [PATCH v2 11/16] hyper-v: trace vmbus_close_internal() Vitaly Kuznetsov
2017-09-29 13:25 ` [PATCH v2 12/16] hyper-v: trace vmbus_establish_gpadl() Vitaly Kuznetsov
2017-09-29 13:25 ` [PATCH v2 13/16] hyper-v: trace vmbus_teardown_gpadl() Vitaly Kuznetsov
2017-09-29 13:26 ` [PATCH v2 14/16] hyper-v: trace vmbus_negotiate_version() Vitaly Kuznetsov
2017-09-29 13:26 ` [PATCH v2 15/16] hyper-v: trace vmbus_release_relid() Vitaly Kuznetsov
2017-09-29 13:26 ` [PATCH v2 16/16] hyper-v: trace vmbus_send_tl_connect_request() Vitaly Kuznetsov
2017-10-03 17:10 ` Stephen Hemminger [this message]
2017-10-04 14:10 ` Vitaly Kuznetsov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20171003101001.2c8e4ad8@xeon-e3 \
--to=stephen@networkplumber.org \
--cc=devel@linuxdriverproject.org \
--cc=haiyangz@microsoft.com \
--cc=linux-kernel@vger.kernel.org \
--cc=rostedt@goodmis.org \
--cc=sthemmin@microsoft.com \
--cc=vkuznets@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox