From mboxrd@z Thu Jan 1 00:00:00 1970 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 79C79CDB483 for ; Wed, 18 Oct 2023 17:17:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231665AbjJRRRR (ORCPT ); Wed, 18 Oct 2023 13:17:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40320 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235337AbjJRRQh (ORCPT ); Wed, 18 Oct 2023 13:16:37 -0400 Received: from NAM11-DM6-obe.outbound.protection.outlook.com (mail-dm6nam11on2054.outbound.protection.outlook.com [40.107.223.54]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1332310C3; Wed, 18 Oct 2023 10:16:23 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=MXxYSf60JY0aXF3lsU03Y5CUP15zTk7Q7oq7FacUJHAg/AQprZ9Cr2kXbhsv43n8FrwZvwcU0yx31VB9n4tkKW0vF8Qz7rP1RV8Z1/Hhn5nfFKOTDDVEZnCrYPYI9aZJfKoBEUNL0X6gMJgxemwPfa7bUJq8FRxTbL9+rFKTRnYTwHOPcrhY/cRXO2hiJiVeS0R5pD899XYASrvz5FX/tnmAf7cazKs+D0DcuMurBwPKjCl6uIIYD3XoSOgUdxiDqjI3rDkeebkwATIaCGgkhUiA04+3d3Q1zPj8VApcLUGVKQAjHnT78cxvTno4jHAdl6XDzEAzYH+IomhXK30WlA== 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=qb2hZXT5+/f8Ri3WhuaZoK6JttuOpOqJz8f5tpo4KeM=; b=iNxjNVuFcXgjxWmU2+ujfPKil9V6Fiy+1ueFpiXo093K57PKgHYYERXtjZfsg1NymTMvhWsX7hKs2h5Rq1pXRg7apVjCuaAW6xqJn6D7ZbRhyki6ELdqbJEAu0fOg24bq/32E411zD9uQikT590uQAZGeuFZ91VPODxzpZOcDHzKTWHSgWUiumLuBZ0ihO7i5bGIPNflSCSnhklK7mNl2QWMZ5zB0Vhe2Qe6w4TZCzmpOHEhW4lRmhtT4VHXEjpDbbd6jjO2aRlIgc7pjZTG2dHojOiebarWNNRxHVxQ4lquzhCEWaA6OYssPhq41J0NuUYXLm0+9Ygt/MWbw4pgmw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 216.228.117.161) 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=qb2hZXT5+/f8Ri3WhuaZoK6JttuOpOqJz8f5tpo4KeM=; b=Nn1ur1k79NC5ruhUQwoIb+Pc8oXhdlGuzRbnsZ39KNyfMjmd7mDCPSIHTz6DPcbzV3o5zlX66Ga5i42rCfeBVrJe5Bzed975egex200/pmper2gYP/ndb1Yk4glmpFdlEDomFshBe3WJRIuttsPD8Q2zileR6Ze6TiWvtRca2320rHjJqzqpzkEeiejDNfBOaHJUufocyjsHyksi3Mlqw566big+ReC+dIWMFb9PWyjED/TmkZb5gjjxEGFTY8VXiq4/5krWHndLxtK6Ogh7aQe+Zc2nm3LjcpnMCxH0LLTpC94ctwGR3crotqU0PBKtY4VklSO6nwjk7ysv0P+NVA== Received: from CY5P221CA0154.NAMP221.PROD.OUTLOOK.COM (2603:10b6:930:6a::22) by PH8PR12MB7424.namprd12.prod.outlook.com (2603:10b6:510:228::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6907.21; Wed, 18 Oct 2023 17:16:19 +0000 Received: from CY4PEPF0000FCBF.namprd03.prod.outlook.com (2603:10b6:930:6a:cafe::51) by CY5P221CA0154.outlook.office365.com (2603:10b6:930:6a::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6886.34 via Frontend Transport; Wed, 18 Oct 2023 17:16:19 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 216.228.117.161) 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 216.228.117.161 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.117.161; helo=mail.nvidia.com; pr=C Received: from mail.nvidia.com (216.228.117.161) by CY4PEPF0000FCBF.mail.protection.outlook.com (10.167.242.101) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6907.23 via Frontend Transport; Wed, 18 Oct 2023 17:16:19 +0000 Received: from rnnvmail204.nvidia.com (10.129.68.6) by mail.nvidia.com (10.129.200.67) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.41; Wed, 18 Oct 2023 10:16:05 -0700 Received: from rnnvmail201.nvidia.com (10.129.68.8) by rnnvmail204.nvidia.com (10.129.68.6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.41; Wed, 18 Oct 2023 10:16:05 -0700 Received: from c-237-113-220-225.mtl.labs.mlnx (10.127.8.12) by mail.nvidia.com (10.129.68.8) with Microsoft SMTP Server id 15.2.986.41 via Frontend Transport; Wed, 18 Oct 2023 10:16:02 -0700 From: Dragos Tatulea To: "Michael S . Tsirkin" , Jason Wang , Eugenio Perez Martin , Si-Wei Liu , Saeed Mahameed , Leon Romanovsky , CC: Dragos Tatulea , , , Parav Pandit , Xuan Zhuo Subject: [PATCH vhost v4 11/16] vdpa/mlx5: Move mr mutex out of mr struct Date: Wed, 18 Oct 2023 20:14:50 +0300 Message-ID: <20231018171456.1624030-13-dtatulea@nvidia.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231018171456.1624030-2-dtatulea@nvidia.com> References: <20231018171456.1624030-2-dtatulea@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY4PEPF0000FCBF:EE_|PH8PR12MB7424:EE_ X-MS-Office365-Filtering-Correlation-Id: baca3d41-04a9-4979-ead1-08dbcffdf1e2 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:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230031)(4636009)(39860400002)(136003)(376002)(396003)(346002)(230922051799003)(82310400011)(186009)(451199024)(64100799003)(1800799009)(46966006)(36840700001)(40470700004)(40460700003)(2616005)(47076005)(1076003)(426003)(66574015)(336012)(26005)(478600001)(36860700001)(8936002)(83380400001)(41300700001)(2906002)(8676002)(4326008)(6666004)(110136005)(5660300002)(70586007)(316002)(70206006)(54906003)(356005)(7636003)(40480700001)(36756003)(82740400003)(86362001)(66899024);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Oct 2023 17:16:19.2881 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: baca3d41-04a9-4979-ead1-08dbcffdf1e2 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CY4PEPF0000FCBF.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH8PR12MB7424 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 Acked-by: Eugenio Pérez Acked-by: Jason Wang --- 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; } -- 2.41.0