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 smtp4.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (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 B5B17C433FE for ; Wed, 2 Feb 2022 14:55:19 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp4.osuosl.org (Postfix) with ESMTP id 44BB9416C5; Wed, 2 Feb 2022 14:55:19 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp4.osuosl.org ([127.0.0.1]) by localhost (smtp4.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id BP0zTLqaDYML; Wed, 2 Feb 2022 14:55:18 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [IPv6:2605:bc80:3010:104::8cd3:938]) by smtp4.osuosl.org (Postfix) with ESMTPS id C729741679; Wed, 2 Feb 2022 14:55:17 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 9BDBBC001A; Wed, 2 Feb 2022 14:55:17 +0000 (UTC) Received: from smtp2.osuosl.org (smtp2.osuosl.org [140.211.166.133]) by lists.linuxfoundation.org (Postfix) with ESMTP id 1D945C000B for ; Wed, 2 Feb 2022 14:55:17 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp2.osuosl.org (Postfix) with ESMTP id EBC9740594 for ; Wed, 2 Feb 2022 14:55:16 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Authentication-Results: smtp2.osuosl.org (amavisd-new); dkim=pass (1024-bit key) header.d=vmware.com Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 28Vd6UAeybZj for ; Wed, 2 Feb 2022 14:55:15 +0000 (UTC) X-Greylist: whitelisted by SQLgrey-1.8.0 Received: from NAM10-DM6-obe.outbound.protection.outlook.com (mail-dm6nam10on2053.outbound.protection.outlook.com [40.107.93.53]) by smtp2.osuosl.org (Postfix) with ESMTPS id BA1DC400C6 for ; Wed, 2 Feb 2022 14:55:15 +0000 (UTC) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=gJQW/9Op+vnLKE6b1BCsy9EQoIuKiudzBvtClWErIKfBbPIXEcH+/D06c4h7JjMahGcT0Igh7zsITh6Ze7a5SXtyZ++Of4C7yBl6dEbkon90KP20No33LiaTP904NPw6mT4ygcHeG1oP5uYOl5gcIcuJFc1QKy1qassVKaTbc2VFYdKQywN7hEC9LyycW1XQihUuGvTWw3M0dq/Haw5CJKuQUec17fQSp2p9+tWOyzJnVXFNZNwBKo1z5vBcjMR9z2sbjKKwAnkzD642k9alNvUFHVtqxjys3EYsSdDSe8GHPDdfsUFaRdnETOARj/ZEfKptUK6oU/ai3ViQt+tDkg== 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=WbWD1v3x7o97JR5HWdB3qWokM1m3uQjDwl735CQJ6EA=; b=XOrjdWRvfJVqIXC5M4sNlD6XERV3JaKQ1pJ+uIfgdQNIX8t2pOaYbv+yVFjS80AhItyDt2v0BjS9j/3FhrpM59NZbN31s7EaiLlUDzNBc3d/GwiuT6BJy1THnI1qttYwBWFL33jn4Q8j0Ue+gE5bd67dt5SGhjvCBgU8y9CnVNHfBlTRWjED7J6ucXfwqdkkm6JAjD/9hgYL2U+cED443aGdS//cXnOQZS9pPJf14GPt9lST/2FSfB/Fq9MGXLyjDvn9ck3hUMQczO7evxrOQvqenASfbIjk7Yc5T+b9YIw+3oUrEtRSYVx/h9uuBOCKWG8mMMIDImF+GqUb8qBBDg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=none; dmarc=none; dkim=none; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=vmware.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=WbWD1v3x7o97JR5HWdB3qWokM1m3uQjDwl735CQJ6EA=; b=d/wQdn7IOs6IDTBsTmEuZADTelGUSWSCsgLSn4EcPtZnBomxfj1SPKtmP9TpmHTMu9JqelzzzLvgH6Obfaqf9dsh4pNVDvL5j9sSHL8JUipAFJuSe6ay5FAjZX7FVP6ce96kfQTR59mZFGGktJGR3O2YrmEU9aSnoZBoCL+bE2o= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=vmware.com; Received: from BY3PR05MB8081.namprd05.prod.outlook.com (2603:10b6:a03:366::15) by BN6PR05MB2803.namprd05.prod.outlook.com (2603:10b6:404:2c::10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4975.5; Wed, 2 Feb 2022 14:55:12 +0000 Received: from BY3PR05MB8081.namprd05.prod.outlook.com ([fe80::304c:2b94:4f26:a581]) by BY3PR05MB8081.namprd05.prod.outlook.com ([fe80::304c:2b94:4f26:a581%3]) with mapi id 15.20.4951.012; Wed, 2 Feb 2022 14:55:12 +0000 From: Jorgen Hansen To: linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org Subject: [PATCH 0/8] VMCI: dma dg: Add support for DMA datagrams Date: Wed, 2 Feb 2022 06:49:02 -0800 Message-Id: <20220202144910.10349-1-jhansen@vmware.com> X-Mailer: git-send-email 2.25.1 X-ClientProxiedBy: SJ0PR03CA0362.namprd03.prod.outlook.com (2603:10b6:a03:3a1::7) To BY3PR05MB8081.namprd05.prod.outlook.com (2603:10b6:a03:366::15) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 2f0c6508-23a4-4112-b0c9-08d9e65c0355 X-MS-TrafficTypeDiagnostic: BN6PR05MB2803:EE_ X-LD-Processed: b39138ca-3cee-4b4a-a4d6-cd83d9dd62f0,ExtAddr X-MS-Exchange-AtpMessageProperties: SA|SL X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:8273; X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: CeycaZweooq5ERnI7motEwW2j2UXegRqD/FHbyWs4bKG9+GRN/oQD5py5xgm/7Nn6Xsz6YGCiChBR48hqO/CarWeqe9I25qkn2xJltFLf1z4CStUZFLW/87jRZROIKcILARfTAm+mzA8Gl53DA9IqpgomFCou4CBSEmEvdjYzoOnYSB0CY2IGh/mp/AEYjGNgflyjQ6e+aUqIzOrVqVGXOyLJyljDFF7jmJeLEZiVJZXwlGLlt5iQ24El46S/9AZ2NfEPK9/vMkhNatsrwJV8yRPs0OMt+/E//rCHIpKh0fAVf7rxRm98A1PFQXnEIGmoTQlEUmq80xtihv5Uv6SFcSvc3C/RKRRE6sNNgx/fxRYRTXKM8kEhw8kNbWcUcHXRKljGKpQZXIXNU5hiCjBaj48A3u0PrA4GhB6blMNtHlJzzi5spnNCDsnE90dTykccBbLXKmAZQF6OrwPkGRLU6KGNbjgWpD6ltcfbJUrvmdm7QRI8D5a5a+JOml83i4y8ty6rMcDA4kUYe9Xtx46hDngZAbnqZssiRSkU70ans5gfUKz7Qra681B5PuhfohKVL1LKQMKnGyM42Et8GpoBf1wVX+0MJ6IJ8b9y9LzWTCUHOwoLI23krO126IaFjRT39uMkx59a+QAhQ2/eEKH02JmwmFbvke9Epl7HUNoQXvef/yoBBfIy4nuE/BfKCIn X-Forefront-Antispam-Report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:BY3PR05MB8081.namprd05.prod.outlook.com; PTR:; CAT:NONE; SFS:(13230001)(4636009)(366004)(52116002)(316002)(6512007)(38100700002)(38350700002)(5660300002)(2616005)(8676002)(8936002)(4326008)(66476007)(66556008)(66946007)(83380400001)(107886003)(508600001)(6486002)(86362001)(1076003)(36756003)(186003)(6506007)(26005)(2906002)(6666004); DIR:OUT; SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?jqZcWaMgFj2kBbN5NhYD4JmmUiMXpukA7cIG2BMqHK6DMIQS3V6g34SPPHQo?= =?us-ascii?Q?BKpWKSkLMe4tP3zLagCTnLvXIsSvYePl761/oa3QblXLAkMLcbTVExeYjiGS?= =?us-ascii?Q?+vwNr/iAjAJtSBTH50q58851XbpcKa3f2wyZPuNc1RI/3vjmcnEoY7AhvTvS?= =?us-ascii?Q?cDp2wTA79qFCweCG25DQnYqwsgStp69Jk94CUq1sbkT8Rs99KKJKIRG41Qn0?= =?us-ascii?Q?ZCn9oVeyuAW57OX6M2UjQf9xsdVYVuBtGYGMB9eTl7zuOyHZetce5yVwMq76?= =?us-ascii?Q?HInIvVfDL7941lgxiX/RkFhXW22+9AVrCTgr0x6wQzvtAZ7m7k/PrdjGsVeb?= =?us-ascii?Q?wF7qbFh1VvPnhtOz+lUMvTxs8N27WV07C+QI+eZAv6UJ0E4pSSc8qnZRRQWJ?= =?us-ascii?Q?kMCU5X0lg2GxC4Yw+5R5RkGZ7NR1ss/tsJbHPaRRA1E7+LNm7M2/v6fhZfrU?= =?us-ascii?Q?CC9xzi+MUK7fmPzwacnoMNxVh9i4u/ElE4ri6uJwwqdaqDelj12cDNIleYQ4?= =?us-ascii?Q?GKViX4B8ubpMkHPFIhYJurxSbA12WH7AaLrijX+aPyRqXp4zeabVPhH0ciFw?= =?us-ascii?Q?N26NgBIRDlfHzZBszV+pbwAXapXtKNEFjsUmaHrGYbVN99MOcAVjBODjPgHt?= =?us-ascii?Q?ZqwhoG9fSmVVDauUjGKG45b2SfQfGya8t9FQG6Hbx0MiGl9V9FP51EvGQ3CC?= =?us-ascii?Q?kcXlzHCWvE5HeX8woCIIxzuCGH8Or0x/RKcFW5SgxaCA3wk87t3ZWHpv/Gct?= =?us-ascii?Q?ZlfhWFcjb1cgOdQNSpsIr8J+EH3TXdKeRyU7gXU3j/yZlH1o5O2zu4Kfx4oV?= =?us-ascii?Q?H77h9sVOJuBTtQEA+zylh0LqzSLNv/tTPwkkBFl9xnzolSRCC+YEhiGb1qaB?= =?us-ascii?Q?gLq5CzgUQ13k8imvErTh1XNeRlq1/ohGhwvEmNCRi4NoTO6U5J277LXsJ0f/?= =?us-ascii?Q?W+ZMA1K5aAoYpBbvgoKy9M5qd5i0nzcADM7Yk6VkYmarfx5+VQGn1p4Wvyzk?= =?us-ascii?Q?2sBU6kEntUV+qoo4XS+HYKMdKHJj4DpWxW8ClGuYQRmauC1YGD9uxZmVvzbk?= =?us-ascii?Q?esiq207AZD4uSKsBRNjFAOeJkNmNqXRV3xI0cdjrNXymvukI1bKoHb0iXbgG?= =?us-ascii?Q?NolJ8N4c4Jy3uHI7QLgz2r+aZIQfnQmdobP1l3+LfXvIlyI8COzFYNrnaSmm?= =?us-ascii?Q?UhjW5v/qwqtPz1AoDQJbUp8oyZz2BIvW2g0XAzQxI8vd5h4JaxEJ8gfhAiYE?= =?us-ascii?Q?QPeSV8FzPtGOyPowubUdekST+cNx13pIHo/JzZmuwd41gkyuJlabA0CCt82n?= =?us-ascii?Q?9Cv0qXNX/AhYprTdtp4Z7S+0l9DZXE6Pyrt6Rj/rO3Rt84t/7Zw6q2HYblcX?= =?us-ascii?Q?WtuwdMLec6FBf8HOl5Y10okD6GAwuf188fvSRSNtB8ifGr2E1J/BX+ICLWnj?= =?us-ascii?Q?PRBocKODq8dS+4JgigvVArsLqdBmEL/SM5lmHd01wpmKd7lNyTojxtQABHA6?= =?us-ascii?Q?gAZRShMdb0RN7zSGegnQ00fmD5bvicd5emQdVKHntUxE4O8uOgKrwn0RG1uX?= =?us-ascii?Q?pbTgq34VEi0jObp4bv9drYqcjH4/j25TCHw6+lYbWmEhmLxmM+J4bIhZimtE?= =?us-ascii?Q?qvWv020UXJh0ECTFzVnSTnY=3D?= X-OriginatorOrg: vmware.com X-MS-Exchange-CrossTenant-Network-Message-Id: 2f0c6508-23a4-4112-b0c9-08d9e65c0355 X-MS-Exchange-CrossTenant-AuthSource: BY3PR05MB8081.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 Feb 2022 14:55:12.0556 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: b39138ca-3cee-4b4a-a4d6-cd83d9dd62f0 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: jik8kv9gEFIyWrsd2MjMc/4Uo8DiAZ3Etx6aP4j0QM4g+dEuQDjCF6uZt97fnkjwpBDAcWZSVNt5auOIzP8wEQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN6PR05MB2803 Cc: pv-drivers@vmware.com, gregkh@linuxfoundation.org, Jorgen Hansen X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" A new version of the VMCI device will introduce two new major changes: - support MMIO access to device registers - support send/receive of datagrams using DMA transfers instead of ioread8_rep/iowrite8_rep operations This patch series updates the VMCI driver to support these new features while maintaining backwards compatibility. The DMA based datagram operations use a send and a receive buffer allocated at module load time. The buffer contains a header describing the layout of the buffer followed by either an SG list or inline data. The header also contains a flag indicating whether the buffer is currently owned by the driver or the device. Both for send and receive, the driver will initialize the buffer, transfer ownership to the device by writing the buffer address to a register, and then wait for the ownership to be transferred back. The device will generate an interrupt when this happens. Jorgen Hansen (8): VMCI: dma dg: whitespace formatting change for vmci register defines VMCI: dma dg: add MMIO access to registers VMCI: dma dg: detect DMA datagram capability VMCI: dma dg: set OS page size VMCI: dma dg: register dummy IRQ handlers for DMA datagrams VMCI: dma dg: allocate send and receive buffers for DMA datagrams VMCI: dma dg: add support for DMA datagrams sends VMCI: dma dg: add support for DMA datagrams receive drivers/misc/vmw_vmci/vmci_guest.c | 339 ++++++++++++++++++++++++----- include/linux/vmw_vmci_defs.h | 84 ++++++- 2 files changed, 360 insertions(+), 63 deletions(-) -- 2.25.1 _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization