From patchwork Mon Aug 13 21:48:00 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Krowiak X-Patchwork-Id: 10564855 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B565613B4 for ; Mon, 13 Aug 2018 21:48:41 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A85E92931C for ; Mon, 13 Aug 2018 21:48:41 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9C93229331; Mon, 13 Aug 2018 21:48:41 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 40AC42931C for ; Mon, 13 Aug 2018 21:48:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731082AbeHNAcn (ORCPT ); Mon, 13 Aug 2018 20:32:43 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:45706 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1731066AbeHNAcm (ORCPT ); Mon, 13 Aug 2018 20:32:42 -0400 Received: from pps.filterd (m0098416.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w7DLchx8025892 for ; Mon, 13 Aug 2018 17:48:37 -0400 Received: from e14.ny.us.ibm.com (e14.ny.us.ibm.com [129.33.205.204]) by mx0b-001b2d01.pphosted.com with ESMTP id 2kugs5k00r-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Mon, 13 Aug 2018 17:48:36 -0400 Received: from localhost by e14.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Mon, 13 Aug 2018 17:48:32 -0400 Received: from b01ledav002.gho.pok.ibm.com (b01ledav002.gho.pok.ibm.com [9.57.199.107]) by b01cxnp22035.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w7DLmUvq9044718 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 13 Aug 2018 21:48:30 GMT Received: from b01ledav002.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 09BAA124055; Mon, 13 Aug 2018 18:49:29 -0400 (EDT) Received: from b01ledav002.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E1805124052; Mon, 13 Aug 2018 18:49:27 -0400 (EDT) Received: from localhost.localdomain (unknown [9.85.141.105]) by b01ledav002.gho.pok.ibm.com (Postfix) with ESMTPS; Mon, 13 Aug 2018 18:49:27 -0400 (EDT) From: Tony Krowiak To: linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: freude@de.ibm.com, schwidefsky@de.ibm.com, heiko.carstens@de.ibm.com, borntraeger@de.ibm.com, cohuck@redhat.com, kwankhede@nvidia.com, bjsdjshi@linux.vnet.ibm.com, pbonzini@redhat.com, alex.williamson@redhat.com, pmorel@linux.vnet.ibm.com, alifm@linux.vnet.ibm.com, mjrosato@linux.vnet.ibm.com, jjherne@linux.vnet.ibm.com, thuth@redhat.com, pasic@linux.vnet.ibm.com, berrange@redhat.com, fiuczy@linux.vnet.ibm.com, buendgen@de.ibm.com, akrowiak@linux.vnet.ibm.com, frankja@linux.ibm.com, Tony Krowiak Subject: [PATCH v9 03/22] s390/zcrypt: Show load of cards and queues in sysfs Date: Mon, 13 Aug 2018 17:48:00 -0400 X-Mailer: git-send-email 1.7.1 In-Reply-To: <1534196899-16987-1-git-send-email-akrowiak@linux.vnet.ibm.com> References: <1534196899-16987-1-git-send-email-akrowiak@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18081321-0052-0000-0000-0000031E7531 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00009538; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000266; SDB=6.01073087; UDB=6.00552882; IPR=6.00853043; MB=3.00022698; MTD=3.00000008; XFM=3.00000015; UTC=2018-08-13 21:48:34 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18081321-0053-0000-0000-00005DB7374B Message-Id: <1534196899-16987-4-git-send-email-akrowiak@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-08-13_10:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=914 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1807170000 definitions=main-1808130218 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Harald Freudenberger Show the current load value of cards and queues in sysfs. The load value for each card and queue is maintained by the zcrypt device driver for dispatching and load balancing requests over the available devices. This patch provides the load value to userspace via a new read only sysfs attribute 'load' per card and queue. Signed-off-by: Harald Freudenberger Signed-off-by: Christian Borntraeger Signed-off-by: Tony Krowiak --- drivers/s390/crypto/zcrypt_card.c | 12 ++++++++++++ drivers/s390/crypto/zcrypt_queue.c | 12 ++++++++++++ 2 files changed, 24 insertions(+), 0 deletions(-) diff --git a/drivers/s390/crypto/zcrypt_card.c b/drivers/s390/crypto/zcrypt_card.c index 233e1e6..da2c8df 100644 --- a/drivers/s390/crypto/zcrypt_card.c +++ b/drivers/s390/crypto/zcrypt_card.c @@ -83,9 +83,21 @@ static ssize_t zcrypt_card_online_store(struct device *dev, static DEVICE_ATTR(online, 0644, zcrypt_card_online_show, zcrypt_card_online_store); +static ssize_t zcrypt_card_load_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct zcrypt_card *zc = to_ap_card(dev)->private; + + return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&zc->load)); +} + +static DEVICE_ATTR(load, 0444, zcrypt_card_load_show, NULL); + static struct attribute *zcrypt_card_attrs[] = { &dev_attr_type.attr, &dev_attr_online.attr, + &dev_attr_load.attr, NULL, }; diff --git a/drivers/s390/crypto/zcrypt_queue.c b/drivers/s390/crypto/zcrypt_queue.c index 720434e..91a52f2 100644 --- a/drivers/s390/crypto/zcrypt_queue.c +++ b/drivers/s390/crypto/zcrypt_queue.c @@ -75,8 +75,20 @@ static ssize_t zcrypt_queue_online_store(struct device *dev, static DEVICE_ATTR(online, 0644, zcrypt_queue_online_show, zcrypt_queue_online_store); +static ssize_t zcrypt_queue_load_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct zcrypt_queue *zq = to_ap_queue(dev)->private; + + return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&zq->load)); +} + +static DEVICE_ATTR(load, 0444, zcrypt_queue_load_show, NULL); + static struct attribute *zcrypt_queue_attrs[] = { &dev_attr_online.attr, + &dev_attr_load.attr, NULL, };