From patchwork Mon Dec 4 23:16:18 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mike Christie X-Patchwork-Id: 13479183 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EE62AC4167B for ; Mon, 4 Dec 2023 23:17:39 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rAIB9-0002Ls-3f; Mon, 04 Dec 2023 18:16:43 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rAIB1-0002LW-Oz for qemu-devel@nongnu.org; Mon, 04 Dec 2023 18:16:35 -0500 Received: from mx0a-00069f02.pphosted.com ([205.220.165.32]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rAIAz-0007Eb-DA for qemu-devel@nongnu.org; Mon, 04 Dec 2023 18:16:35 -0500 Received: from pps.filterd (m0246617.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 3B4MoD2N004790; Mon, 4 Dec 2023 23:16:30 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : content-transfer-encoding : content-type : mime-version; s=corp-2023-11-20; bh=De/CiSuYl1RMsvOdH4u5lpdwzUmtWE9lejwG3iDf0R4=; b=dAO8ltSJh0fkXB1COIiVbGTNP3+TohCb3lOuGr4GhZ0nhldiPjFK0V16Mhm2nwxfWDFy v/hD15T3B4eBejdPs4fmRLfa44LEMW60BhHfgzBM/XVpEIbj2yyUYYvK7r23wC/3oR/i HEffYynKEJ8Db+6K2yTlhLiA5qCxaYWbZdFNknCEJaESu0BGxCisK98TEy9hNFScMbyr yMJpaSsh2evlV/dO9ZVabxxHIsMkYttybGrsVI001OLTG45H2ACh+EtinnH4ksdYZKNk vNX4MlITr7gzERgA8zcX8Xb9cJb37LpybTesunYCiSBWcChckQMsVR1MGG99LIz7wrVy Qg== Received: from iadpaimrmta03.imrmtpd1.prodappiadaev1.oraclevcn.com (iadpaimrmta03.appoci.oracle.com [130.35.103.27]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 3usqnf02bp-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 04 Dec 2023 23:16:30 +0000 Received: from pps.filterd (iadpaimrmta03.imrmtpd1.prodappiadaev1.oraclevcn.com [127.0.0.1]) by iadpaimrmta03.imrmtpd1.prodappiadaev1.oraclevcn.com (8.17.1.19/8.17.1.19) with ESMTP id 3B4MIqXE018427; Mon, 4 Dec 2023 23:16:27 GMT Received: from nam02-dm3-obe.outbound.protection.outlook.com (mail-dm3nam02lp2041.outbound.protection.outlook.com [104.47.56.41]) by iadpaimrmta03.imrmtpd1.prodappiadaev1.oraclevcn.com (PPS) with ESMTPS id 3uqu16hnch-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 04 Dec 2023 23:16:27 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=aiK3RXMDEVgzQfCE1sSEk8owGsbN/KQkGgGmzR+f0yfg2Z+ojGRLsFjFVNDjMDsi9TzpjCarP2U3rChR7zpgWbxcho9gJgHtuxhb6F90XehMVVJYmYQpoXgw6QRhjIqZd9Y/+VR48AL1+ygAGa9GsXKz//QJXdINB1RrBHhEEN7ZXPYcb1Rcho+aKNuYfNkaWtdYwhIn4IVUOZY7FTStciLikQRZL8WHH8OD4F59HOVML4H5eSWzpsPnXyzRA9JB/ra9vDOob0RVEqQxdU9gD86BqhgMJH/6H+QVbASVxF039yH+deCLfXgeLWQke1Q1iJt539vwzgkQgS/19NJ5lw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=De/CiSuYl1RMsvOdH4u5lpdwzUmtWE9lejwG3iDf0R4=; b=Qd7p56zNzdMrDEAia8ax4yrlZQde/LWhBACPxcU56/q0iQObdEV8hFqrXEccLp5a+FUO4wX2RIejsaKswJk35iEOEU7T5R0I2mcXGw0hRJ4Mu+DKE23GZOD/cYfhDWUUe8FHwmH6COEUYXx9ok0r/5pwmsm11kgLJRjCgUmqk4bO6Qa5uygERodxCPy+HJxsdhG5QsG4pzJhgLOor5LGCoPtr5pAlEpHbS0vETnq5M2Gi4wDDgLz9MzutFr+GIiKifYH2KnSVbk4resYkX/MNEFzgxisvlpTwkAOU+/Ik8EsMJ5QdueY5PGLVZY8fvxrVMWAqVtvNmWtD27lf7W3qg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=oracle.com; dmarc=pass action=none header.from=oracle.com; dkim=pass header.d=oracle.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.onmicrosoft.com; s=selector2-oracle-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=De/CiSuYl1RMsvOdH4u5lpdwzUmtWE9lejwG3iDf0R4=; b=VY7rH6dMyGLsKjE0/9JUveQuL1/BKJ3QiCvaKgO+PaXe+Eg3DuyyOQNJ7jYqmhmjpZq8ue4bdOcwbNGCU+knvb6WRZD7GtLuixQCzpcKmWdXLWBp/Y6nRZSK40UZYE64qhlG1GSkQnDUuUX4rfQW+aQUAxWOYtQK6QqQ5uhqSBU= Received: from CY8PR10MB7243.namprd10.prod.outlook.com (2603:10b6:930:7c::10) by MN6PR10MB7466.namprd10.prod.outlook.com (2603:10b6:208:477::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7046.34; Mon, 4 Dec 2023 23:16:25 +0000 Received: from CY8PR10MB7243.namprd10.prod.outlook.com ([fe80::449f:4fd9:2d3e]) by CY8PR10MB7243.namprd10.prod.outlook.com ([fe80::449f:4fd9:2d3e%4]) with mapi id 15.20.7046.033; Mon, 4 Dec 2023 23:16:25 +0000 From: Mike Christie To: fam@euphon.net, stefanha@redhat.com, jasowang@redhat.com, mst@redhat.com, sgarzare@redhat.com, pbonzini@redhat.com, qemu-devel@nongnu.org Cc: Mike Christie Subject: [PATCH v3 2/2] vhost-scsi: Add support for a worker thread per virtqueue Date: Mon, 4 Dec 2023 17:16:18 -0600 Message-Id: <20231204231618.21962-3-michael.christie@oracle.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231204231618.21962-1-michael.christie@oracle.com> References: <20231204231618.21962-1-michael.christie@oracle.com> X-ClientProxiedBy: DM5PR07CA0090.namprd07.prod.outlook.com (2603:10b6:4:ae::19) To CY8PR10MB7243.namprd10.prod.outlook.com (2603:10b6:930:7c::10) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY8PR10MB7243:EE_|MN6PR10MB7466:EE_ X-MS-Office365-Filtering-Correlation-Id: 4ce50e8d-9eea-4879-ef7f-08dbf51f094f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:CY8PR10MB7243.namprd10.prod.outlook.com; PTR:; CAT:NONE; SFS:(13230031)(136003)(39860400002)(366004)(346002)(376002)(396003)(230922051799003)(1800799012)(186009)(64100799003)(451199024)(66556008)(66476007)(66946007)(4326008)(8676002)(8936002)(316002)(6486002)(478600001)(6666004)(5660300002)(36756003)(41300700001)(2906002)(86362001)(2616005)(107886003)(26005)(1076003)(38100700002)(6506007)(6512007); DIR:OUT; SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-0: 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 X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: 4ce50e8d-9eea-4879-ef7f-08dbf51f094f X-MS-Exchange-CrossTenant-AuthSource: CY8PR10MB7243.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Dec 2023 23:16:25.3041 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: D4dPtJgf44eMJMCTX3KrOVbrDJqNfpucC/jZmsuBEHmbkX0+EauuNXco/+Q7uTp6930AFbnvGSerqnA+Y6GxWmc4aOAmly8w4N1VL4DqMFA= X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN6PR10MB7466 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-04_21,2023-12-04_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 phishscore=0 malwarescore=0 mlxlogscore=999 mlxscore=0 suspectscore=0 adultscore=0 spamscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311060000 definitions=main-2312040182 X-Proofpoint-ORIG-GUID: 8nndg8F4231XkG2M-sNOJpDWvL-d_WAZ X-Proofpoint-GUID: 8nndg8F4231XkG2M-sNOJpDWvL-d_WAZ Received-SPF: pass client-ip=205.220.165.32; envelope-from=michael.christie@oracle.com; helo=mx0a-00069f02.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org This adds support for vhost-scsi to be able to create a worker thread per virtqueue. Right now for vhost-net we get a worker thread per tx/rx virtqueue pair which scales nicely as we add more virtqueues and CPUs, but for scsi we get the single worker thread that's shared by all virtqueues. When trying to send IO to more than 2 virtqueues the single thread becomes a bottlneck. This patch adds a new setting, worker_per_virtqueue, which can be set to: false: Existing behavior where we get the single worker thread. true: Create a worker per IO virtqueue. Signed-off-by: Mike Christie Reviewed-by: Stefan Hajnoczi Reviewed-by: Stefano Garzarella --- hw/scsi/vhost-scsi.c | 62 +++++++++++++++++++++++++++++++++ include/hw/virtio/virtio-scsi.h | 1 + 2 files changed, 63 insertions(+) diff --git a/hw/scsi/vhost-scsi.c b/hw/scsi/vhost-scsi.c index 3126df9e1d9d..08aa7534df51 100644 --- a/hw/scsi/vhost-scsi.c +++ b/hw/scsi/vhost-scsi.c @@ -165,6 +165,59 @@ static const VMStateDescription vmstate_virtio_vhost_scsi = { .pre_save = vhost_scsi_pre_save, }; +static int vhost_scsi_set_workers(VHostSCSICommon *vsc, bool per_virtqueue) +{ + struct vhost_dev *dev = &vsc->dev; + struct vhost_vring_worker vq_worker; + struct vhost_worker_state worker; + int i, ret; + + /* Use default worker */ + if (!per_virtqueue || dev->nvqs == VHOST_SCSI_VQ_NUM_FIXED + 1) { + return 0; + } + + /* + * ctl/evt share the first worker since it will be rare for them + * to send cmds while IO is running. + */ + for (i = VHOST_SCSI_VQ_NUM_FIXED + 1; i < dev->nvqs; i++) { + memset(&worker, 0, sizeof(worker)); + + ret = dev->vhost_ops->vhost_new_worker(dev, &worker); + if (ret == -ENOTTY) { + /* + * worker ioctls are not implemented so just ignore and + * and continue device setup. + */ + warn_report("vhost-scsi: Backend supports a single worker. " + "Ignoring worker_per_virtqueue=true setting."); + ret = 0; + break; + } else if (ret) { + break; + } + + memset(&vq_worker, 0, sizeof(vq_worker)); + vq_worker.worker_id = worker.worker_id; + vq_worker.index = i; + + ret = dev->vhost_ops->vhost_attach_vring_worker(dev, &vq_worker); + if (ret == -ENOTTY) { + /* + * It's a bug for the kernel to have supported the worker creation + * ioctl but not attach. + */ + dev->vhost_ops->vhost_free_worker(dev, &worker); + break; + } else if (ret) { + break; + } + } + + return ret; +} + static void vhost_scsi_realize(DeviceState *dev, Error **errp) { VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(dev); @@ -232,6 +285,13 @@ static void vhost_scsi_realize(DeviceState *dev, Error **errp) goto free_vqs; } + ret = vhost_scsi_set_workers(vsc, vs->conf.worker_per_virtqueue); + if (ret < 0) { + error_setg(errp, "vhost-scsi: vhost worker setup failed: %s", + strerror(-ret)); + goto free_vqs; + } + /* At present, channel and lun both are 0 for bootable vhost-scsi disk */ vsc->channel = 0; vsc->lun = 0; @@ -297,6 +357,8 @@ static Property vhost_scsi_properties[] = { VIRTIO_SCSI_F_T10_PI, false), DEFINE_PROP_BOOL("migratable", VHostSCSICommon, migratable, false), + DEFINE_PROP_BOOL("worker_per_virtqueue", VirtIOSCSICommon, + conf.worker_per_virtqueue, false), DEFINE_PROP_END_OF_LIST(), }; diff --git a/include/hw/virtio/virtio-scsi.h b/include/hw/virtio/virtio-scsi.h index 779568ab5d28..0e9a1867665e 100644 --- a/include/hw/virtio/virtio-scsi.h +++ b/include/hw/virtio/virtio-scsi.h @@ -51,6 +51,7 @@ typedef struct virtio_scsi_config VirtIOSCSIConfig; struct VirtIOSCSIConf { uint32_t num_queues; uint32_t virtqueue_size; + bool worker_per_virtqueue; bool seg_max_adjust; uint32_t max_sectors; uint32_t cmd_per_lun;