From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=148.163.158.5 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793978592; b=Etb0863qxxCoBSJ3WvA/wlutyPR3Y4cZaH9mbNKGKWlEGjWiBMlM3bed2RVA+FJMI506 js+fy4el3o+iM3Q7AysvyrADlZSc+tMfWcjrVudFum/o6r8FkS7XfFJ5Cv/Oj7GqY0qv6 TmZ6JvPYg9FwwUA75SLs0hIPnH26pXTlx9h0GxZe94H+izphcriJ2pn2hyvNFemAkzFcM EynkUAaVhid86AfpRYf9OQko2l2nNHTxfnStQ5QapxaTjXidh22d4IHEeA95UhbSX8/ck 2PVKOwUhnrN7YORHCU3sJU30XSzlGpZTOdTZx3qdkRHAxb4rgwL7U9X2CPxIfQXRU5Q== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793978592; h=DMARC-Filter:Received:DKIM-Signature:Received:Received:Received: Received:Received:Received:Received:From:To:Cc:Subject:Date: Message-ID:X-Mailer:In-Reply-To:References:MIME-Version: Content-Transfer-Encoding:X-TM-AS-GCONF:X-Proofpoint-ORIG-GUID: X-Proofpoint-GUID:X-Authority-Analysis:X-Proofpoint-Spam-Info: X-Proofpoint-Spam-Details-Enc:X-Proofpoint-Virus-Version: X-Proofpoint-Spam-Details; bh=4FwtvuIAIzzf1W6DoLcxSMo6B2sr2GRT8crxL/9cXAs=; b=vpX2JgXfnnOxJXWJwucA6fH+eOWmQ+bhqkOGmyrZ+JaiNb0pv8KMnBpbuTGjlwBrbcir IFvvU2gpquQoMA95JyM76iGvtHKrLbC3HQYyUSCoB9YVJ6VZk37z3MiMLll5Lo60aPe/v bVtOB8qi4+d+6xk2UXlE9CgaQedtUBHQfcG15enTUi9LLAZd1PbJxdOhHdMsGUFtVLxSZ 4EqJiN/Y8phEfiJFNyweUfncwQNKMS19dlhukLUmYMbbc/6fyUw9NAmhHg3V2B0lPZl3d D25nKbvaUVfcg3xtYHTcQ2ysiRKBUtBW1k4xuOnU0SvjAegoOdWttVI1GPHlrL6FZxQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=linux.ibm.com; spf=pass smtp.mailfrom=linux.ibm.com; dkim=pass header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256 header.s=pp1 header.b=CmZrT0JN; arc=none smtp.remote-ip=148.163.158.5 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 510B8606A326; Fri, 6 Nov 2026 15:23:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 510B8606A326 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, unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256 header.s=pp1 header.b=CmZrT0JN Received: from pps.filterd (m0353725.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 6A6FEFgN1544360; Fri, 6 Nov 2026 15:23:06 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=4FwtvuIAIzzf1W6Do LcxSMo6B2sr2GRT8crxL/9cXAs=; b=CmZrT0JN/IS7Yh+cvqVCy7fRAGC8PjxJb B3RZkrR5QHSzP4fzV/WvPFd2UfxGw34dfRE+7ABn5vdNlXtOOE2kUbYLwKvHjC/1 zi8Dliju+HiTluMColXVfpE4dVg4awB3fMDK/Wq5lrx/e5yDVAD/K5w0xBsI4hyV ZcmHAkVzhYDesVk0XH31sfeeGIerG+UKchKJr/h3m3gkmoYyRumAY0n3G1x/uIX/ cAI4AiOpIg1x/YdiH6t+UMDtEAhNVwXa4P1a78P2z/yqp/MRZpCyKo3zLmZbraJD CCbDitjZhE1GOrLiShS07G9/tIaxdkW9W6Cke1oS+V9ymgQkC5+BA== Received: from ppma12.dal12v.mail.ibm.com (dc.9e.1632.ip4.static.sl-reverse.com [50.22.158.220]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4hs3rbw4jn-1 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Fri, 06 Nov 2026 15:23:06 +0000 (GMT) Received: from pps.filterd (ppma12.dal12v.mail.ibm.com [127.0.0.1]) by ppma12.dal12v.mail.ibm.com (8.18.1.11/8.18.1.11) with ESMTP id 6A6F4uH73538281; Fri, 6 Nov 2026 15:23:05 GMT Received: from smtprelay04.wdc07v.mail.ibm.com ([172.16.1.71]) by ppma12.dal12v.mail.ibm.com (PPS) with ESMTPS id 4hrk9msu77-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 06 Nov 2026 15:23:05 +0000 (GMT) Received: from smtpav06.wdc07v.mail.ibm.com (smtpav06.wdc07v.mail.ibm.com [10.39.53.233]) by smtprelay04.wdc07v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 6A6FN4Ie41550518 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 6 Nov 2026 15:23:04 GMT Received: from smtpav06.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 20F9558066; Fri, 6 Nov 2026 15:23:04 +0000 (GMT) Received: from smtpav06.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 7283A5804E; Fri, 6 Nov 2026 15:23:02 +0000 (GMT) Received: from li-4c4c4544-004d-4810-8043-b7c04f423534.ibm.com.com (unknown [9.61.114.69]) by smtpav06.wdc07v.mail.ibm.com (Postfix) with ESMTP; Fri, 6 Nov 2026 15:23:02 +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 v12 01/14] s390/vfio-ap: Provide function to get the number of queues assigned to mdev Date: Fri, 6 Nov 2026 10:22:46 -0500 Message-ID: <20261106152259.1360651-2-akrowiak@linux.ibm.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20261106152259.1360651-1-akrowiak@linux.ibm.com> References: <20261106152259.1360651-1-akrowiak@linux.ibm.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: Y63c_zVQpyg3HPWLMWN4ZTATFrbitWny X-Proofpoint-GUID: Y63c_zVQpyg3HPWLMWN4ZTATFrbitWny X-Authority-Analysis: v=2.4 cv=MqLHeGae c=1 sm=1 tr=0 ts=6aedf0da cx=c_pps a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17 a=zJRp6_cAMcgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=V8glGbnc2Ofi9Qvn3v5h:22 a=VnNF1IyMAAAA:8 a=yQsB-kB7boqL7geEApIA:9 X-Proofpoint-Spam-Info: AW1haW4tMjYxMTA2MDA2MCBTYWx0ZWRfX8lqxMsh27JOw cm0HLUVUpS/HPbKWb90npQW+TV7LtFZ6mPr/6uHhFlD692cXEAep9l1iHprvL2GBkwXdK0ezM37 W2DvZewMnJp3XQesojeakn6jho9MX4Y= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMTA2MDA2MCBTYWx0ZWRfX84imP+G49/8+ lsU6h2F4fwfShoPm5ZIs+tIjW+gWWNiFJdrPoC/VcCk/YfFEq/s6k/bLmu5YzzU8bnxuewDpNL3 /P6tFzOw5Kt0Tf7F5lOgcqLwMLobjjg0IH5vnkDRQEJaNquCI31WejOyefx7ywWEtDvrYNASHkw 4vHA3xAhCV8xDXlEBYkkeZaywKwkd2Eu7FdSUHJMyBS6rNXzY2HxziNihf9KcVNZs1FEFUpPMlz QRhmQBRu9J/+v0owQ8ZzthjEDDwAu2V9/eyMeTY1+/ZTbni2igrbjgkQAyTjylZN0SZmQxKVKxQ wTBXSIlFL3vYjxWGZApJx4r3C6dHxbPMt1weHCQikLnRvPaFz69ijyRUT9E9Jubd70RWuxnigRz TOV5ywjDSkndsKtZI/LI0BZ1HxZHJouPXqxaHf0bkC1HhK0ZKQWY4yQmnRHG/qvhv2YzxuQXiWO mMrJl9w7FUvIuUInb7Q== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.138,FMLib:17.12.100.49 definitions=2026-11-06_05,2026-11-06_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 phishscore=0 priorityscore=1501 adultscore=0 clxscore=1015 malwarescore=0 impostorscore=0 spamscore=0 lowpriorityscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2611040001 definitions=main-2611060060 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 373ce574c431..83ba4193bdc3 100644 --- a/drivers/s390/crypto/vfio_ap_ops.c +++ b/drivers/s390/crypto/vfio_ap_ops.c @@ -2113,6 +2113,14 @@ 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