From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752020AbdJ2TXM (ORCPT ); Sun, 29 Oct 2017 15:23:12 -0400 Received: from a2nlsmtp01-05.prod.iad2.secureserver.net ([198.71.225.49]:54022 "EHLO a2nlsmtp01-05.prod.iad2.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751920AbdJ2TWV (ORCPT ); Sun, 29 Oct 2017 15:22:21 -0400 x-originating-ip: 107.180.71.197 From: kys@exchange.microsoft.com To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, devel@linuxdriverproject.org, olaf@aepfle.de, apw@canonical.com, vkuznets@redhat.com, jasowang@redhat.com, leann.ogasawara@canonical.com, marcelo.cerri@canonical.com, sthemmin@microsoft.com Cc: "K . Y . Srinivasan" Subject: [PATCH 17/17] hyper-v: trace channel events Date: Sun, 29 Oct 2017 12:21:16 -0700 Message-Id: <20171029192116.12466-17-kys@exchange.microsoft.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20171029192116.12466-1-kys@exchange.microsoft.com> References: <20171029192030.12356-1-kys@exchange.microsoft.com> <20171029192116.12466-1-kys@exchange.microsoft.com> Reply-To: kys@microsoft.com X-CMAE-Envelope: MS4wfJzyaEr1Lp8UILxbenPhF+VBYBwv0V+daDBgUH1xU8KQHYTI6ILJPjUiC2DM4OpGCoQ0nzlzFMg7mk39yAvghSEvsMJFG2OUkVE/RLGa7MXpKELEhvCB a0DaionwhgyKziO5uwiBYEmisZ3ZTW4yl10dbv9n/D9AptUQ8B1tHdKYJzsczh7X+1ot7+vZLCaBDqwuX3ABxx8mKNlsmO/88viNIXHhwkrbv/XvCyfip98M MG2IPknMmmk5vsA9dkepMeklPmC5w7BsKq+R8zgRLU9uCz+mdt5UkSC94AIV4nqlHDYRJo8eJqgLoJoBpth6ugFBMCInZQRCVzqOKoCUYmQeezdRKtt8u2+o E4ptLbiNzcfpTG6KWXXAb0bzIiRmKe8yR/rEdmdIUsegKPP3ZnJF9ASMJyalePDhK/LTjdz5o19sf/St0q2cswfRlZgyuNmisF3j873SbrTMd1gmdrWiETSK Hq5lpa3Gjp8TPof+T2NnAseETGRgMMZd+866Js7btQAI+9rod1El7NB2OnvX8ABbnU47WUxiX0bxR/Pu Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Vitaly Kuznetsov Added an additional set of trace points for when channel gets notified or signals host. Suggested-by: Stephen Hemminger Signed-off-by: Vitaly Kuznetsov Signed-off-by: K. Y. Srinivasan --- 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 ed3634e53e15..19f0cf37e0ed 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 05f413c4fe3b..447371f4de56 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 8f9293a87c6b..6a86746d4f60 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -946,6 +946,8 @@ static void vmbus_chan_sched(struct hv_per_cpu_context *hv_cpu) if (channel->rescind) continue; + trace_vmbus_chan_sched(channel); + ++channel->interrupts; switch (channel->callback_mode) { -- 2.14.1