From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752521AbdI2N0k (ORCPT ); Fri, 29 Sep 2017 09:26:40 -0400 Received: from mx1.redhat.com ([209.132.183.28]:45662 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752390AbdI2N0h (ORCPT ); Fri, 29 Sep 2017 09:26:37 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 97156A8322 Authentication-Results: ext-mx02.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx02.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=vkuznets@redhat.com From: Vitaly Kuznetsov To: devel@linuxdriverproject.org Cc: linux-kernel@vger.kernel.org, "K. Y. Srinivasan" , Haiyang Zhang , Stephen Hemminger , Steven Rostedt , Dexuan Cui Subject: [PATCH v2 16/16] hyper-v: trace vmbus_send_tl_connect_request() Date: Fri, 29 Sep 2017 15:26:02 +0200 Message-Id: <20170929132602.24487-17-vkuznets@redhat.com> In-Reply-To: <20170929132602.24487-1-vkuznets@redhat.com> References: <20170929132602.24487-1-vkuznets@redhat.com> X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.26]); Fri, 29 Sep 2017 13:26:37 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add tracepoint to CHANNELMSG_TL_CONNECT_REQUEST sender. Signed-off-by: Vitaly Kuznetsov --- drivers/hv/channel.c | 7 ++++++- drivers/hv/hv_trace.h | 20 ++++++++++++++++++++ 2 files changed, 26 insertions(+), 1 deletion(-) diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c index 9cb81838e7bb..3efe9e8ab079 100644 --- a/drivers/hv/channel.c +++ b/drivers/hv/channel.c @@ -236,13 +236,18 @@ int vmbus_send_tl_connect_request(const uuid_le *shv_guest_servie_id, const uuid_le *shv_host_servie_id) { struct vmbus_channel_tl_connect_request conn_msg; + int ret; memset(&conn_msg, 0, sizeof(conn_msg)); conn_msg.header.msgtype = CHANNELMSG_TL_CONNECT_REQUEST; conn_msg.guest_endpoint_id = *shv_guest_servie_id; conn_msg.host_service_id = *shv_host_servie_id; - return vmbus_post_msg(&conn_msg, sizeof(conn_msg), true); + ret = vmbus_post_msg(&conn_msg, sizeof(conn_msg), true); + + trace_vmbus_send_tl_connect_request(&conn_msg, ret); + + return ret; } EXPORT_SYMBOL_GPL(vmbus_send_tl_connect_request); diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h index 3e751f948a5f..3a7eaff355dd 100644 --- a/drivers/hv/hv_trace.h +++ b/drivers/hv/hv_trace.h @@ -274,6 +274,26 @@ TRACE_EVENT(vmbus_release_relid, ) ); +TRACE_EVENT(vmbus_send_tl_connect_request, + TP_PROTO(const struct vmbus_channel_tl_connect_request *msg, + int ret), + TP_ARGS(msg, ret), + TP_STRUCT__entry( + __array(char, guest_id, 16) + __array(char, host_id, 16) + __field(int, ret) + ), + TP_fast_assign( + memcpy(__entry->guest_id, &msg->guest_endpoint_id.b, 16); + memcpy(__entry->host_id, &msg->host_service_id.b, 16); + __entry->ret = ret; + ), + TP_printk("sending guest_endpoint_id %pUl, host_service_id %pUl, " + "ret %d", + __entry->guest_id, __entry->host_id, __entry->ret + ) + ); + #undef TRACE_INCLUDE_PATH #define TRACE_INCLUDE_PATH . #undef TRACE_INCLUDE_FILE -- 2.13.5