From: Vitaly Kuznetsov <vkuznets@redhat.com>
To: Stephen Hemminger <stephen@networkplumber.org>
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: Wed, 04 Oct 2017 16:10:42 +0200 [thread overview]
Message-ID: <87d163j95p.fsf@vitty.brq.redhat.com> (raw)
In-Reply-To: <20171003101001.2c8e4ad8@xeon-e3> (Stephen Hemminger's message of "Tue, 3 Oct 2017 10:10:01 -0700")
Stephen Hemminger <stephen@networkplumber.org> writes:
> I added an additional set of trace points for when channel gets notified or signals host.
>
Will add this in v3, thanks!
> 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:
--
Vitaly
prev parent reply other threads:[~2017-10-04 14:10 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
2017-10-04 14:10 ` Vitaly Kuznetsov [this message]
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