From patchwork Tue Sep 12 13:01:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dragos Tatulea X-Patchwork-Id: 138431 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:9ecd:0:b0:3f2:4152:657d with SMTP id t13csp671588vqx; Tue, 12 Sep 2023 13:47:59 -0700 (PDT) X-Google-Smtp-Source: AGHT+IHtKdCXpsvPVGdzzSAAIU9wNXaJIjIG3mOU255BjcGHL8rFwWXLkpkst9OanFWxh6o2RBH9 X-Received: by 2002:a17:903:1c5:b0:1c3:64f9:45ad with SMTP id e5-20020a17090301c500b001c364f945admr1090155plh.48.1694551678990; Tue, 12 Sep 2023 13:47:58 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1694551678; cv=pass; d=google.com; s=arc-20160816; b=xl65+V3DOdYLl0bcwj8rJ8Lx43o/cuIMVths7S0ZtyMvUppw9BYVlJULwIBzTeApfm tmnoPha3nriwvemnQOs5j8Y57/Z/OghWnfFYFRMh/sYVuXnIjXHxXvg8CyaGMcc7YmDK KaUCmCx378AQdUiNR/ZlER2H3ZizmTrgd/xk59uAXU08Nf8I+Ljw4wah+3Lt7xj7Dhj2 m9NvW+dmDDcZ9Ta03CbwfVL9amjoB1y6TOaMJUnR55kfZ9lI92MDhWcZgj2gTe3MwGKh knjXpq1zSrBXxjnqLwzUJEj3iWSEbZG+6iBjPCNrYF/2sp9fuMuk0Jj5NRLEL4r59Lfw EIPw== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=pugKhXn1yyJ2eySbGpZefWpS3s+uIziF5TphRI58E5w=; fh=OYX0w70bKWLTZnZNUmTcUjb/vh12yoS1IlKGBW8yXc0=; b=Thlk1LOxR76ttCa1/WwuSqnJ4naQBpVOyP1dmjivN146Tu8WFYVgDGDI8sGgSJc3/q U2lRCSK2e/Cb/w+LpFPLe2NHCADpC3B0LxHYWIWAbx1h6oo0CcH/Jy2p2DOhe1KUc3zI nIwA1t4bW5gfT+khLvfHoIzfl3iG63HEBNbTJtZCuFPr/pMFbTP6JG/3hVrSz4qcO5YT oWVT0cvNWC3ZFBzryiQWwP3/XeLbS6NSnjgB3G2Ms/7v900uKKyx1MhrmsjofN2dKeHS 670COQ+Gk+vwKpwJKxZ5eek8Qoz9Aa/ZkbIOI1xJRgY/nDYph2PbmhHK5hf+jZ322rET HVQg== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@Nvidia.com header.s=selector2 header.b=aCdVsRc3; arc=pass (i=1 spf=pass spfdomain=nvidia.com dmarc=pass fromdomain=nvidia.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:6 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=nvidia.com Received: from pete.vger.email (pete.vger.email. [2620:137:e000::3:6]) by mx.google.com with ESMTPS id kz5-20020a170902f9c500b001c33d33975esi8562428plb.133.2023.09.12.13.47.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Sep 2023 13:47:58 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:6 as permitted sender) client-ip=2620:137:e000::3:6; Authentication-Results: mx.google.com; dkim=pass header.i=@Nvidia.com header.s=selector2 header.b=aCdVsRc3; arc=pass (i=1 spf=pass spfdomain=nvidia.com dmarc=pass fromdomain=nvidia.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:6 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=nvidia.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by pete.vger.email (Postfix) with ESMTP id 147D581D55D5; Tue, 12 Sep 2023 06:03:39 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at pete.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235631AbjILNDe (ORCPT + 37 others); Tue, 12 Sep 2023 09:03:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49692 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235640AbjILNC6 (ORCPT ); Tue, 12 Sep 2023 09:02:58 -0400 Received: from NAM12-MW2-obe.outbound.protection.outlook.com (mail-mw2nam12on2079.outbound.protection.outlook.com [40.107.244.79]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A5797212D; Tue, 12 Sep 2023 06:02:36 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=dDjO4pDodziMpKnofiTFu3BOcH91YvGLvHURIcNvS2U2Jt5Po4RmQDKqjJHO8Lm9lP4oNGiyWVZmZaUSgTFCWSiFF4VRK9BiLV5rp/voUYXyx00f7pPYziKUb7v2ejU1p8NMtK6wfSf4rFiBRyMMYBGZd+mrUCH+EUSXBgd/g5faRFI5tVgUKMq/Fpi7UvDkbMPFS2eJOxjqC1+ZEGO91ZMjiEWT/qKroR36Mgd8bkFqdfv8ivZVzMw63SuITDXPKClpZM/Yxi3WXSKcv5Ru4cH2VV2HfFygxA83uHL0liM62D2DTsra0FjebhvroHJZjcrRGwfmu84UJA0Nrdyh7w== 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=pugKhXn1yyJ2eySbGpZefWpS3s+uIziF5TphRI58E5w=; b=IrMXdHtS+9F17VWatLjGOHL/a5HT8hV4U9ddAxx4UmHCmN9ia9zeG3QcqmEAmEONyvBSNCUWeit+g1C3MPi47QOW1QuNLp8R0zG3EGeXjWhPydagXfXpWpRfz5LkU6mWsmUzSK9gpkwexDtcEVXVtUGGhJrHFFR/8L2Mo+n0YpGLxJOEK9PMK0wyJvLzwEN33p/SmlfBhDOuxlzXniOezZhwzJygm5RRFiTRkHnFa1r2Z/TzlBAGKgjpun+nSLAYpRtfwICzQNsIeHBietcEqAlg3RNLnxRZHbetKE+pzptDCzzYJLioJfCFdrOjHs51q0ninbdohPAVBkrNAWZZKw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 216.228.117.160) smtp.rcpttodomain=redhat.com smtp.mailfrom=nvidia.com; dmarc=pass (p=reject sp=reject pct=100) action=none header.from=nvidia.com; dkim=none (message not signed); arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=pugKhXn1yyJ2eySbGpZefWpS3s+uIziF5TphRI58E5w=; b=aCdVsRc36kBd1tjgQ88twWXv4dStZJqf8ZI0xJtQGGpzYjHtZvJqUu5sXu7jBaBW31cGnXeJpmFZWUEzb8dCOzhnbh79Ybxkf1WeMRK5+osONKEDAIbJySvxBcucAZyKLonzPapjsfqHChlyU4KG6kscBAFqwvpTG9kuMP7ER1hdl8bhyZ5o82nmpv5sva/7WmZTtCSLYdhxpj+bJtVNAZcfHMSAuvMij6X3wok+1DQLjZzZkD3GbEUf8NfdpB/2ajcaN6TdN9yME7aNWIMv79Aqt3yB6bGIh0+kQomwc+rOigwXaZ+pptryFGfDfl6UQB4y62TV/KrhZu3MYqG5yw== Received: from MW4PR03CA0287.namprd03.prod.outlook.com (2603:10b6:303:b5::22) by PH7PR12MB8779.namprd12.prod.outlook.com (2603:10b6:510:26b::8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6768.31; Tue, 12 Sep 2023 13:02:34 +0000 Received: from CO1PEPF000042AE.namprd03.prod.outlook.com (2603:10b6:303:b5:cafe::4e) by MW4PR03CA0287.outlook.office365.com (2603:10b6:303:b5::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6768.37 via Frontend Transport; Tue, 12 Sep 2023 13:02:33 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 216.228.117.160) smtp.mailfrom=nvidia.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=nvidia.com; Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates 216.228.117.160 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.117.160; helo=mail.nvidia.com; pr=C Received: from mail.nvidia.com (216.228.117.160) by CO1PEPF000042AE.mail.protection.outlook.com (10.167.243.43) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6792.11 via Frontend Transport; Tue, 12 Sep 2023 13:02:33 +0000 Received: from rnnvmail205.nvidia.com (10.129.68.10) by mail.nvidia.com (10.129.200.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.5; Tue, 12 Sep 2023 06:02:19 -0700 Received: from rnnvmail205.nvidia.com (10.129.68.10) by rnnvmail205.nvidia.com (10.129.68.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.37; Tue, 12 Sep 2023 06:02:19 -0700 Received: from c-237-113-220-225.mtl.labs.mlnx (10.127.8.12) by mail.nvidia.com (10.129.68.10) with Microsoft SMTP Server id 15.2.986.37 via Frontend Transport; Tue, 12 Sep 2023 06:02:16 -0700 From: Dragos Tatulea To: Jason Wang , =?utf-8?q?Eugenio_P=C3=A9rez?= , Si-Wei Liu , "Michael S . Tsirkin" , Saeed Mahameed , , CC: Dragos Tatulea , Parav Pandit , Xuan Zhuo , Subject: [PATCH 10/16] vdpa/mlx5: Move mr mutex out of mr struct Date: Tue, 12 Sep 2023 16:01:20 +0300 Message-ID: <20230912130132.561193-11-dtatulea@nvidia.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230912130132.561193-1-dtatulea@nvidia.com> References: <20230912130132.561193-1-dtatulea@nvidia.com> MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1PEPF000042AE:EE_|PH7PR12MB8779:EE_ X-MS-Office365-Filtering-Correlation-Id: 02f4fbfe-4aa4-4d36-fab3-08dbb39087d2 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:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230031)(4636009)(376002)(346002)(39860400002)(136003)(396003)(186009)(451199024)(1800799009)(82310400011)(40470700004)(46966006)(36840700001)(66899024)(47076005)(70586007)(5660300002)(86362001)(40460700003)(36756003)(7636003)(82740400003)(4326008)(8936002)(356005)(8676002)(36860700001)(54906003)(336012)(83380400001)(2906002)(316002)(41300700001)(40480700001)(70206006)(426003)(1076003)(2616005)(110136005)(6666004)(478600001)(26005);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Sep 2023 13:02:33.7220 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 02f4fbfe-4aa4-4d36-fab3-08dbb39087d2 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CO1PEPF000042AE.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB8779 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (pete.vger.email [0.0.0.0]); Tue, 12 Sep 2023 06:03:39 -0700 (PDT) X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on pete.vger.email X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1776866221200479270 X-GMAIL-MSGID: 1776866221200479270 The mutex is named like it is supposed to protect only the mkey but in reality it is a global lock for all mr resources. Shift the mutex to it's rightful location (struct mlx5_vdpa_dev) and give it a more appropriate name. Signed-off-by: Dragos Tatulea --- drivers/vdpa/mlx5/core/mlx5_vdpa.h | 4 ++-- drivers/vdpa/mlx5/core/mr.c | 13 +++++++------ drivers/vdpa/mlx5/core/resources.c | 6 +++--- 3 files changed, 12 insertions(+), 11 deletions(-) diff --git a/drivers/vdpa/mlx5/core/mlx5_vdpa.h b/drivers/vdpa/mlx5/core/mlx5_vdpa.h index 01d4ee58ccb1..9c6ac42c21e1 100644 --- a/drivers/vdpa/mlx5/core/mlx5_vdpa.h +++ b/drivers/vdpa/mlx5/core/mlx5_vdpa.h @@ -34,8 +34,6 @@ struct mlx5_vdpa_mr { /* state of dvq mr */ bool initialized; - /* serialize mkey creation and destruction */ - struct mutex mkey_mtx; bool user_mr; }; @@ -94,6 +92,8 @@ struct mlx5_vdpa_dev { u32 generation; struct mlx5_vdpa_mr mr; + /* serialize mr access */ + struct mutex mr_mtx; struct mlx5_control_vq cvq; struct workqueue_struct *wq; unsigned int group2asid[MLX5_VDPA_NUMVQ_GROUPS]; diff --git a/drivers/vdpa/mlx5/core/mr.c b/drivers/vdpa/mlx5/core/mr.c index 6f29e8eaabb1..abd6a6fb122f 100644 --- a/drivers/vdpa/mlx5/core/mr.c +++ b/drivers/vdpa/mlx5/core/mr.c @@ -509,11 +509,11 @@ static void _mlx5_vdpa_destroy_mr(struct mlx5_vdpa_dev *mvdev, struct mlx5_vdpa_ void mlx5_vdpa_destroy_mr(struct mlx5_vdpa_dev *mvdev, struct mlx5_vdpa_mr *mr) { - mutex_lock(&mr->mkey_mtx); + mutex_lock(&mvdev->mr_mtx); _mlx5_vdpa_destroy_mr(mvdev, mr); - mutex_unlock(&mr->mkey_mtx); + mutex_unlock(&mvdev->mr_mtx); } void mlx5_vdpa_destroy_mr_resources(struct mlx5_vdpa_dev *mvdev) @@ -550,9 +550,10 @@ int mlx5_vdpa_create_mr(struct mlx5_vdpa_dev *mvdev, { int err; - mutex_lock(&mvdev->mr.mkey_mtx); + mutex_lock(&mvdev->mr_mtx); err = _mlx5_vdpa_create_mr(mvdev, mr, iotlb); - mutex_unlock(&mvdev->mr.mkey_mtx); + mutex_unlock(&mvdev->mr_mtx); + return err; } @@ -563,14 +564,14 @@ int mlx5_vdpa_handle_set_map(struct mlx5_vdpa_dev *mvdev, struct vhost_iotlb *io int err = 0; *change_map = false; - mutex_lock(&mr->mkey_mtx); + mutex_lock(&mvdev->mr_mtx); if (mr->initialized) { mlx5_vdpa_info(mvdev, "memory map update\n"); *change_map = true; } if (!*change_map) err = _mlx5_vdpa_create_mr(mvdev, mr, iotlb); - mutex_unlock(&mr->mkey_mtx); + mutex_unlock(&mvdev->mr_mtx); return err; } diff --git a/drivers/vdpa/mlx5/core/resources.c b/drivers/vdpa/mlx5/core/resources.c index d5a59c9035fb..5c5a41b64bfc 100644 --- a/drivers/vdpa/mlx5/core/resources.c +++ b/drivers/vdpa/mlx5/core/resources.c @@ -256,7 +256,7 @@ int mlx5_vdpa_alloc_resources(struct mlx5_vdpa_dev *mvdev) mlx5_vdpa_warn(mvdev, "resources already allocated\n"); return -EINVAL; } - mutex_init(&mvdev->mr.mkey_mtx); + mutex_init(&mvdev->mr_mtx); res->uar = mlx5_get_uars_page(mdev); if (IS_ERR(res->uar)) { err = PTR_ERR(res->uar); @@ -301,7 +301,7 @@ int mlx5_vdpa_alloc_resources(struct mlx5_vdpa_dev *mvdev) err_uctx: mlx5_put_uars_page(mdev, res->uar); err_uars: - mutex_destroy(&mvdev->mr.mkey_mtx); + mutex_destroy(&mvdev->mr_mtx); return err; } @@ -318,6 +318,6 @@ void mlx5_vdpa_free_resources(struct mlx5_vdpa_dev *mvdev) dealloc_pd(mvdev, res->pdn, res->uid); destroy_uctx(mvdev, res->uid); mlx5_put_uars_page(mvdev->mdev, res->uar); - mutex_destroy(&mvdev->mr.mkey_mtx); + mutex_destroy(&mvdev->mr_mtx); res->valid = false; }