From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 938DE3537F9; Fri, 9 Oct 2026 11:42:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.158.5 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791546187; cv=none; b=twdiKPNLGHuuqnzLc+ZU3UQ7H7yWbqAfK0IR8iXUdqyhlNEQMouISBhqrLg1w+68b5vBWZJ1kgbnRdJWvKgnWwDelhjuQg1+lxudTkzS7ltMPzlyZfT+U6YJu1sVaNRFr+I+SX4RS+eB2Xxgubwx3UMDidqEPZQkzWe7/+3ChN8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791546187; c=relaxed/simple; bh=8AgmqpS2IfPLLkqBrNFeSppSYnwqMoUkZ5D/Mx9MRU4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=oGlNFyqiaZmEvozk6DOjD5Snb2/+E2MrvffvHB1os9vbDsFZdveMQ++wYf3RksCCwjb4aNqKAii+/tXTAETmd4PhhS29uIE4ZMu7N3hmC8FXkReQzHz9ZtypKHg65dlOGyUBsec/mo5fUF0f/njfS1jPhOOOLXxJ3lECocpgxZg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com; spf=pass smtp.mailfrom=linux.ibm.com; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b=YSAoJ9vY; arc=none smtp.client-ip=148.163.158.5 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b="YSAoJ9vY" Received: from pps.filterd (m0356516.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 6998au4W3668820; Fri, 9 Oct 2026 11:42:50 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:date:from:in-reply-to:message-id :mime-version:references:subject:to; s=pp1; bh=GvsXguk85R/E8jqlL leNCGdkBhGGMMi8sM2lGJW4Nfg=; b=YSAoJ9vY77dCyijT0rWjGJLRUwMCMsyvb 8AiN9a20iLIOx0jBvlZ3RtcdnIqngwe2+N9ou4ORyq6TsffM5xifWGPak1fs+9QJ 2tlgJrd3Fmd+hneN0DKLx7NJgdyA13cFpN9pO2Ol6zouktPc68eWNZxB+jAaXNQK qXpAGn8YHNk7d3vWgqwfU/dftBFfdcRxeshLmwt07ewNSE7Rw2Vp5ZQggxlGh1lR zD7PeQwZxvl/Lrgc0OS9jkqJP7dbeY+cyXgGItPEyrdOcXHBpNR/AKLQDSboz5Lj 6tSOVqSJfQPF56fegRVcDMCBskUjq/oQl1NH272WhwMba9aU/3hvw== Received: from ppma21.wdc07v.mail.ibm.com (5b.69.3da9.ip4.static.sl-reverse.com [169.61.105.91]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4h5xjw9pwn-1 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Fri, 09 Oct 2026 11:42:50 +0000 (GMT) Received: from pps.filterd (ppma21.wdc07v.mail.ibm.com [127.0.0.1]) by ppma21.wdc07v.mail.ibm.com (8.18.1.11/8.18.1.11) with ESMTP id 6998I1kN559738; Fri, 9 Oct 2026 11:42:50 GMT Received: from smtprelay06.wdc07v.mail.ibm.com ([172.16.1.73]) by ppma21.wdc07v.mail.ibm.com (PPS) with ESMTPS id 4h6udd0xaf-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 09 Oct 2026 11:42:50 +0000 (GMT) Received: from smtpav04.wdc07v.mail.ibm.com (smtpav04.wdc07v.mail.ibm.com [10.39.53.231]) by smtprelay06.wdc07v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 699BgmnT4260418 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 9 Oct 2026 11:42:48 GMT Received: from smtpav04.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id BCFB658050; Fri, 9 Oct 2026 11:42:48 +0000 (GMT) Received: from smtpav04.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1925358054; Fri, 9 Oct 2026 11:42:47 +0000 (GMT) Received: from li-4c4c4544-004d-4810-8043-b7c04f423534.ibm.com.com (unknown [9.61.159.45]) by smtpav04.wdc07v.mail.ibm.com (Postfix) with ESMTP; Fri, 9 Oct 2026 11:42:46 +0000 (GMT) From: Anthony Krowiak To: linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: jjherne@linux.ibm.com, borntraeger@de.ibm.com, mjrosato@linux.ibm.com, pasic@linux.ibm.com, alex@shazbot.org, kwankhede@nvidia.com, fiuczy@linux.ibm.com, pbonzini@redhat.com, frankja@linux.ibm.com, imbrenda@linux.ibm.com, agordeev@linux.ibm.com, hca@linux.ibm.com, gor@linux.ibm.com Subject: [PATCH v8 01/15] s390/vfio-ap: Provide function to get the number of queues assigned to mdev Date: Fri, 9 Oct 2026 07:42:30 -0400 Message-ID: <20261009114244.1213173-2-akrowiak@linux.ibm.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20261009114244.1213173-1-akrowiak@linux.ibm.com> References: <20261009114244.1213173-1-akrowiak@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Spam-Info: AW1haW4tMjYxMDA5MDA0NiBTYWx0ZWRfXyAe6Y5QUm4Xf ffXBxh6vCz+l+kVCe+ilSk0LyUgGaEMrOgzEmSqxannwVt4MUVKdofw7Vv3jJImhXPZpoAFQEAx DVg5FvqUIozWidB6Ny2uanLW0j6wcUk= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDA5MDA0NiBTYWx0ZWRfXyt5l85AcGVAf x0PuATEV8w4yHRmxe3mGXxOGwb/08RFy1O54RzJaQeYJb59cY9IsbRf14iqTmfcMECp15MT4e6+ kJ94PXvBCDt17g+9KFALg/UvjENIVS+rdSjTk5zm49Gdk87Hg63C3nbGCTrPgMzbTCUklJJBX3l uX6BoRbJB3KKC/4cli5nnnzxcolk1C1ACdNsPXXicxP3wVybxBPSymmB0pjOVJ/iBX17IY4Wosf YmHgCf/0DhX74Ws7HFe9w7ZVMIgBrLbFMw/7VvXuJJVQYkFtQYgHhtirONHJ1VsQOkDsthEiuV6 LKqo43BtqcrA1KbQYzy09/R9/jjODCVp9UME7dOOjy+C/6S2zP/J2v3mJe90gpD0nGUbKvcxNAJ +bwKMCTT6HzoDDyKDqrSrRoVj47i2sztEalEpKEgF3NSjSeHgrv91TpZGd2DwfPfZjLOQUkTkMk nh8QZjO7qnbKyTPznMQ== X-Proofpoint-GUID: pHfoCITQDeA0pyjxbGezAFFeDpysqpfd X-Proofpoint-ORIG-GUID: pHfoCITQDeA0pyjxbGezAFFeDpysqpfd X-Authority-Analysis: v=2.4 cv=XcwcX455 c=1 sm=1 tr=0 ts=6ac8d33a cx=c_pps a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17 a=660iZSQnnn4A:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=Y2IxJ9c9Rs8Kov3niI8_:22 a=VnNF1IyMAAAA:8 a=yQsB-kB7boqL7geEApIA:9 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-10-09_03,2026-10-08_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 lowpriorityscore=0 priorityscore=1501 phishscore=0 malwarescore=0 bulkscore=0 adultscore=0 spamscore=0 suspectscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610020000 definitions=main-2610090046 Provides a function that returns the number of queues that are or will be passed through to a guest when the mdev is attached to a guest. Signed-off-by: Anthony Krowiak Reviewed-by: Jason J. Herne --- drivers/s390/crypto/vfio_ap_ops.c | 8 ++++++++ drivers/s390/crypto/vfio_ap_private.h | 2 ++ 2 files changed, 10 insertions(+) diff --git a/drivers/s390/crypto/vfio_ap_ops.c b/drivers/s390/crypto/vfio_ap_ops.c index 4db878c18f41..345c52a328ad 100644 --- a/drivers/s390/crypto/vfio_ap_ops.c +++ b/drivers/s390/crypto/vfio_ap_ops.c @@ -2105,6 +2105,14 @@ static void vfio_ap_mdev_request(struct vfio_device *vdev, unsigned int count) release_update_locks_for_mdev(matrix_mdev); } +unsigned int vfio_ap_mdev_get_num_queues(struct ap_matrix *ap_matrix) +{ + lockdep_assert_held(&matrix_dev->mdevs_lock); + + return bitmap_weight(ap_matrix->apm, AP_DEVICES) * + bitmap_weight(ap_matrix->aqm, AP_DOMAINS); +} + static int vfio_ap_mdev_get_device_info(unsigned long arg) { unsigned long minsz; diff --git a/drivers/s390/crypto/vfio_ap_private.h b/drivers/s390/crypto/vfio_ap_private.h index 9bff666b0b35..12d7d240addd 100644 --- a/drivers/s390/crypto/vfio_ap_private.h +++ b/drivers/s390/crypto/vfio_ap_private.h @@ -152,6 +152,8 @@ struct vfio_ap_queue { struct work_struct reset_work; }; +unsigned int vfio_ap_mdev_get_num_queues(struct ap_matrix *ap_matrix); + int vfio_ap_mdev_register(void); void vfio_ap_mdev_unregister(void); -- 2.53.0