From patchwork Thu Sep 8 08:14:33 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wu Bo X-Patchwork-Id: 606122 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 21EBCECAAD5 for ; Thu, 8 Sep 2022 08:15:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231425AbiIHIPQ (ORCPT ); Thu, 8 Sep 2022 04:15:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42608 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231489AbiIHIOo (ORCPT ); Thu, 8 Sep 2022 04:14:44 -0400 Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0968C12750 for ; Thu, 8 Sep 2022 01:14:35 -0700 (PDT) Received: from dggpeml500023.china.huawei.com (unknown [172.30.72.57]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4MNWyr2wMPz14QR5; Thu, 8 Sep 2022 16:10:44 +0800 (CST) Received: from dggpeml500019.china.huawei.com (7.185.36.137) by dggpeml500023.china.huawei.com (7.185.36.114) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Thu, 8 Sep 2022 16:14:33 +0800 Received: from [10.174.179.189] (10.174.179.189) by dggpeml500019.china.huawei.com (7.185.36.137) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Thu, 8 Sep 2022 16:14:33 +0800 Message-ID: Date: Thu, 8 Sep 2022 16:14:33 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.8.0 Subject: scsi: core: Add io timeout count for scsi device Content-Language: en-US References: To: "James E.J. Bottomley" , "Martin K. Petersen" CC: , , From: Wu Bo In-Reply-To: X-Forwarded-Message-Id: X-Originating-IP: [10.174.179.189] X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To dggpeml500019.china.huawei.com (7.185.36.137) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Current the scsi device has iorequest count, iodone count and ioerr count, but lack of io timeout count. For better tracking of scsi io, So add it now. Signed-off-by: Wu Bo --- drivers/scsi/scsi_error.c | 1 + drivers/scsi/scsi_sysfs.c | 2 ++ include/scsi/scsi_device.h | 1 + 3 files changed, 4 insertions(+) -- 1.8.3.1 diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 448748e..e84aea9 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -334,6 +334,7 @@ enum blk_eh_timer_return scsi_timeout(struct request *req) trace_scsi_dispatch_cmd_timeout(scmd); scsi_log_completion(scmd, TIMEOUT_ERROR); + atomic_inc(&scmd->device->iotmo_cnt); if (host->eh_deadline != -1 && !host->last_reset) host->last_reset = jiffies; diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c index 9dad2fd..72e702c 100644 --- a/drivers/scsi/scsi_sysfs.c +++ b/drivers/scsi/scsi_sysfs.c @@ -970,6 +970,7 @@ static DEVICE_ATTR(field, S_IRUGO, show_iostat_##field, NULL) show_sdev_iostat(iorequest_cnt); show_sdev_iostat(iodone_cnt); show_sdev_iostat(ioerr_cnt); +show_sdev_iostat(iotmo_cnt); static ssize_t sdev_show_modalias(struct device *dev, struct device_attribute *attr, char *buf) @@ -1289,6 +1290,7 @@ static umode_t scsi_sdev_bin_attr_is_visible(struct kobject *kobj, &dev_attr_iorequest_cnt.attr, &dev_attr_iodone_cnt.attr, &dev_attr_ioerr_cnt.attr, + &dev_attr_iotmo_cnt.attr, &dev_attr_modalias.attr, &dev_attr_queue_depth.attr, &dev_attr_queue_type.attr, diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 3113471..78039d1 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -231,6 +231,7 @@ struct scsi_device { atomic_t iorequest_cnt; atomic_t iodone_cnt; atomic_t ioerr_cnt; + atomic_t iotmo_cnt; struct device sdev_gendev, sdev_dev;