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Wed, 23 Dec 2020 01:16:16 GMT Received: from b01ledav004.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id EA818112064; Wed, 23 Dec 2020 01:16:15 +0000 (GMT) Received: from b01ledav004.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 30667112069; Wed, 23 Dec 2020 01:16:15 +0000 (GMT) Received: from cpe-66-24-58-13.stny.res.rr.com.com (unknown [9.85.193.150]) by b01ledav004.gho.pok.ibm.com (Postfix) with ESMTP; Wed, 23 Dec 2020 01:16:15 +0000 (GMT) From: Tony Krowiak To: linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: freude@linux.ibm.com, borntraeger@de.ibm.com, cohuck@redhat.com, mjrosato@linux.ibm.com, pasic@linux.ibm.com, alex.williamson@redhat.com, kwankhede@nvidia.com, fiuczy@linux.ibm.com, frankja@linux.ibm.com, david@redhat.com, hca@linux.ibm.com, gor@linux.ibm.com, Tony Krowiak Subject: [PATCH v13 03/15] s390/vfio-ap: move probe and remove callbacks to vfio_ap_ops.c Date: Tue, 22 Dec 2020 20:15:54 -0500 Message-Id: <20201223011606.5265-4-akrowiak@linux.ibm.com> X-Mailer: git-send-email 2.21.1 In-Reply-To: <20201223011606.5265-1-akrowiak@linux.ibm.com> References: <20201223011606.5265-1-akrowiak@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.343,18.0.737 definitions=2020-12-22_13:2020-12-21,2020-12-22 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 priorityscore=1501 impostorscore=0 mlxscore=0 bulkscore=0 mlxlogscore=999 clxscore=1015 lowpriorityscore=0 suspectscore=0 phishscore=0 spamscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2012230003 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Let's move the probe and remove callbacks into the vfio_ap_ops.c file to keep all code related to managing queues in a single file. This way, all functions related to queue management can be removed from the vfio_ap_private.h header file defining the public interfaces for the vfio_ap device driver. Signed-off-by: Tony Krowiak Reviewed-by: Halil Pasic --- drivers/s390/crypto/vfio_ap_drv.c | 44 ++------------------------- drivers/s390/crypto/vfio_ap_ops.c | 34 +++++++++++++++++++-- drivers/s390/crypto/vfio_ap_private.h | 6 ++-- 3 files changed, 37 insertions(+), 47 deletions(-) diff --git a/drivers/s390/crypto/vfio_ap_drv.c b/drivers/s390/crypto/vfio_ap_drv.c index ca18c91afec9..73bd073fd5d3 100644 --- a/drivers/s390/crypto/vfio_ap_drv.c +++ b/drivers/s390/crypto/vfio_ap_drv.c @@ -43,46 +43,6 @@ static struct ap_device_id ap_queue_ids[] = { MODULE_DEVICE_TABLE(vfio_ap, ap_queue_ids); -/** - * vfio_ap_queue_dev_probe: - * - * Allocate a vfio_ap_queue structure and associate it - * with the device as driver_data. - */ -static int vfio_ap_queue_dev_probe(struct ap_device *apdev) -{ - struct vfio_ap_queue *q; - - q = kzalloc(sizeof(*q), GFP_KERNEL); - if (!q) - return -ENOMEM; - dev_set_drvdata(&apdev->device, q); - q->apqn = to_ap_queue(&apdev->device)->qid; - q->saved_isc = VFIO_AP_ISC_INVALID; - return 0; -} - -/** - * vfio_ap_queue_dev_remove: - * - * Takes the matrix lock to avoid actions on this device while removing - * Free the associated vfio_ap_queue structure - */ -static void vfio_ap_queue_dev_remove(struct ap_device *apdev) -{ - struct vfio_ap_queue *q; - int apid, apqi; - - mutex_lock(&matrix_dev->lock); - q = dev_get_drvdata(&apdev->device); - dev_set_drvdata(&apdev->device, NULL); - apid = AP_QID_CARD(q->apqn); - apqi = AP_QID_QUEUE(q->apqn); - vfio_ap_mdev_reset_queue(apid, apqi, 1); - kfree(q); - mutex_unlock(&matrix_dev->lock); -} - static void vfio_ap_matrix_dev_release(struct device *dev) { struct ap_matrix_dev *matrix_dev = dev_get_drvdata(dev); @@ -185,8 +145,8 @@ static int __init vfio_ap_init(void) return ret; memset(&vfio_ap_drv, 0, sizeof(vfio_ap_drv)); - vfio_ap_drv.probe = vfio_ap_queue_dev_probe; - vfio_ap_drv.remove = vfio_ap_queue_dev_remove; + vfio_ap_drv.probe = vfio_ap_mdev_probe_queue; + vfio_ap_drv.remove = vfio_ap_mdev_remove_queue; vfio_ap_drv.ids = ap_queue_ids; ret = ap_driver_register(&vfio_ap_drv, THIS_MODULE, VFIO_AP_DRV_NAME); diff --git a/drivers/s390/crypto/vfio_ap_ops.c b/drivers/s390/crypto/vfio_ap_ops.c index 052f61391ec7..a83d6e75361b 100644 --- a/drivers/s390/crypto/vfio_ap_ops.c +++ b/drivers/s390/crypto/vfio_ap_ops.c @@ -140,7 +140,7 @@ static void vfio_ap_free_aqic_resources(struct vfio_ap_queue *q) * Returns if ap_aqic function failed with invalid, deconfigured or * checkstopped AP. */ -struct ap_queue_status vfio_ap_irq_disable(struct vfio_ap_queue *q) +static struct ap_queue_status vfio_ap_irq_disable(struct vfio_ap_queue *q) { struct ap_qirq_ctrl aqic_gisa = {}; struct ap_queue_status status; @@ -1137,8 +1137,8 @@ static struct vfio_ap_queue *vfio_ap_find_queue(int apqn) return q; } -int vfio_ap_mdev_reset_queue(unsigned int apid, unsigned int apqi, - unsigned int retry) +static int vfio_ap_mdev_reset_queue(unsigned int apid, unsigned int apqi, + unsigned int retry) { struct ap_queue_status status; struct vfio_ap_queue *q; @@ -1321,3 +1321,31 @@ void vfio_ap_mdev_unregister(void) { mdev_unregister_device(&matrix_dev->device); } + +int vfio_ap_mdev_probe_queue(struct ap_device *apdev) +{ + struct vfio_ap_queue *q; + + q = kzalloc(sizeof(*q), GFP_KERNEL); + if (!q) + return -ENOMEM; + dev_set_drvdata(&apdev->device, q); + q->apqn = to_ap_queue(&apdev->device)->qid; + q->saved_isc = VFIO_AP_ISC_INVALID; + return 0; +} + +void vfio_ap_mdev_remove_queue(struct ap_device *apdev) +{ + struct vfio_ap_queue *q; + int apid, apqi; + + mutex_lock(&matrix_dev->lock); + q = dev_get_drvdata(&apdev->device); + dev_set_drvdata(&apdev->device, NULL); + apid = AP_QID_CARD(q->apqn); + apqi = AP_QID_QUEUE(q->apqn); + vfio_ap_mdev_reset_queue(apid, apqi, 1); + kfree(q); + mutex_unlock(&matrix_dev->lock); +} diff --git a/drivers/s390/crypto/vfio_ap_private.h b/drivers/s390/crypto/vfio_ap_private.h index 0db6fb3d56d5..d9003de4fbad 100644 --- a/drivers/s390/crypto/vfio_ap_private.h +++ b/drivers/s390/crypto/vfio_ap_private.h @@ -90,8 +90,6 @@ struct ap_matrix_mdev { extern int vfio_ap_mdev_register(void); extern void vfio_ap_mdev_unregister(void); -int vfio_ap_mdev_reset_queue(unsigned int apid, unsigned int apqi, - unsigned int retry); struct vfio_ap_queue { struct ap_matrix_mdev *matrix_mdev; @@ -100,4 +98,8 @@ struct vfio_ap_queue { #define VFIO_AP_ISC_INVALID 0xff unsigned char saved_isc; }; + +int vfio_ap_mdev_probe_queue(struct ap_device *queue); +void vfio_ap_mdev_remove_queue(struct ap_device *queue); + #endif /* _VFIO_AP_PRIVATE_H_ */