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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=904 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1807170000 definitions=main-1808130218 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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, }; -- 1.7.1