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{ "id": 126758, "url": "http://patches.dpdk.org/api/covers/126758/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/cover/20230508111812.2655-1-nipun.gupta@amd.com/", "project": { "id": 1, "url": "http://patches.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<20230508111812.2655-1-nipun.gupta@amd.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20230508111812.2655-1-nipun.gupta@amd.com", "date": "2023-05-08T11:18:08", "name": "[v4,0/4] Support AMD CDX bus, for FPGA based CDX devices. The CDX", "submitter": { "id": 2928, "url": "http://patches.dpdk.org/api/people/2928/?format=api", "name": "Gupta, Nipun", "email": "nipun.gupta@amd.com" }, "mbox": "http://patches.dpdk.org/project/dpdk/cover/20230508111812.2655-1-nipun.gupta@amd.com/mbox/", "series": [ { "id": 27954, "url": "http://patches.dpdk.org/api/series/27954/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=27954", "date": "2023-05-08T11:18:08", "name": "Support AMD CDX bus, for FPGA based CDX devices. The CDX", "version": 4, "mbox": "http://patches.dpdk.org/series/27954/mbox/" } ], "comments": "http://patches.dpdk.org/api/covers/126758/comments/", "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@inbox.dpdk.org", "Delivered-To": "patchwork@inbox.dpdk.org", "Received": [ "from mails.dpdk.org (mails.dpdk.org [217.70.189.124])\n\tby inbox.dpdk.org (Postfix) with ESMTP id 20EC642A94;\n\tMon, 8 May 2023 13:18:26 +0200 (CEST)", "from mails.dpdk.org (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id A650F410ED;\n\tMon, 8 May 2023 13:18:25 +0200 (CEST)", "from NAM10-MW2-obe.outbound.protection.outlook.com\n (mail-mw2nam10on2083.outbound.protection.outlook.com [40.107.94.83])\n by mails.dpdk.org (Postfix) with ESMTP id BB2B140685\n for <dev@dpdk.org>; Mon, 8 May 2023 13:18:24 +0200 (CEST)", "from BN9PR03CA0883.namprd03.prod.outlook.com (2603:10b6:408:13c::18)\n by PH7PR12MB6563.namprd12.prod.outlook.com (2603:10b6:510:211::12)\n with Microsoft SMTP Server (version=TLS1_2,\n cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6363.32; Mon, 8 May\n 2023 11:18:22 +0000", "from BN8NAM11FT072.eop-nam11.prod.protection.outlook.com\n (2603:10b6:408:13c:cafe::e6) by BN9PR03CA0883.outlook.office365.com\n (2603:10b6:408:13c::18) with Microsoft SMTP Server (version=TLS1_2,\n cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6363.33 via Frontend\n Transport; Mon, 8 May 2023 11:18:21 +0000", "from SATLEXMB03.amd.com (165.204.84.17) by\n BN8NAM11FT072.mail.protection.outlook.com (10.13.176.165) with Microsoft SMTP\n Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id\n 15.20.6363.32 via Frontend Transport; Mon, 8 May 2023 11:18:21 +0000", "from SATLEXMB03.amd.com (10.181.40.144) by SATLEXMB03.amd.com\n (10.181.40.144) with Microsoft SMTP Server (version=TLS1_2,\n cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.34; Mon, 8 May\n 2023 06:18:20 -0500", "from xhdipdslab41.xilinx.com (10.180.168.240) by SATLEXMB03.amd.com\n (10.181.40.144) with Microsoft SMTP Server id 15.1.2375.34 via\n Frontend Transport; Mon, 8 May 2023 06:18:18 -0500" ], "ARC-Seal": "i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none;\n b=GYvf0DfyIAN3VZDzlBtL/K4vuquMa9TZ+GC3k8lxVgU3eg85C+wJKIFJ87BObxirKzT+5KXr5IXGTku0Rhxws9ytDSlUjdWdYLKmT4mEcjstCDtugmBZu8lfHrgHc4Vo3YA3EG5Sjw8aNUMOGZBqnmKpRWWk3lvW1+goIDih51OsaU3YIwvR4ikr6QoWGZV9FAEhHethvBidK/9Z1ANxhu5VUgzpe4H19QgvHv8TTpAMnYlKR5wodN0zXoo9Du0nqkP/oDTKG9OS4ddLB0/DgfD9Ajg6jd/BvLi6jOLD9IzcN6VP1iIjApvYsYJZbTvH6N2jidLNML2lZYavGC5sEw==", "ARC-Message-Signature": "i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com;\n s=arcselector9901;\n 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;\n bh=zAHlEBKf76jH560XtAdhBnzKVS8NOTIS32fscXf1Nng=;\n b=Q/DybtM0oGNlPoFuhYVq4bkuqnhLVMt3Vq7PAUMBGWbKQwbBVfYEdhBfhSEiRG63fXdEO9i6zXeU3UVAd1kz4afvfntDzFnlV14Fs1UeJuIjdjoX+ep+PRXpNntYF7jzIpOBYNk6AfF6rY3iJVPnRAlIl/QrNjIFmHq+kN8IgelsOqIVISRLegcjYJpnvOGmJYpR4Pv8lfYJ88TiVFnLPrxfsBeUXQVo/eDB81SJISQEJ3gyVnRrxUs1g+aqZMPip1J+7rF/70TiS9zywAfD5zRZtrhz/RRJtAt2RjwNPAiIqYVYbsEfBsRHHvZ4DBBRf8MtbUTivnHDMynDTHhEGQ==", "ARC-Authentication-Results": "i=1; mx.microsoft.com 1; spf=pass (sender ip is\n 165.204.84.17) smtp.rcpttodomain=dpdk.org smtp.mailfrom=amd.com; dmarc=pass\n (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com;\n dkim=none (message not signed); arc=none", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1;\n h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck;\n bh=zAHlEBKf76jH560XtAdhBnzKVS8NOTIS32fscXf1Nng=;\n b=sjaR+JMf+MlKdmDQzopWheeH/IFiuI8/Uo25ituHJAX4wEtCM3dnTUd6tNvCWMcQCYf4Yuldfuz3ACAwzl1QdJTCEbJrf/wLoxiaug0MoI+lQ27uHFyh6+4q94yjJuYelD8f/H2x3X5um7O+RDQtTjazCbntfOimrvSs173g90U=", "X-MS-Exchange-Authentication-Results": "spf=pass (sender IP is 165.204.84.17)\n smtp.mailfrom=amd.com; dkim=none (message not signed)\n header.d=none;dmarc=pass action=none header.from=amd.com;", "Received-SPF": "Pass (protection.outlook.com: domain of amd.com designates\n 165.204.84.17 as permitted sender) receiver=protection.outlook.com;\n client-ip=165.204.84.17; helo=SATLEXMB03.amd.com; pr=C", "From": "Nipun Gupta <nipun.gupta@amd.com>", "To": "<dev@dpdk.org>, <thomas@monjalon.net>, <david.marchand@redhat.com>", "CC": "<ferruh.yigit@amd.com>, <harpreet.anand@amd.com>,\n <nikhil.agarwal@amd.com>, Nipun Gupta <nipun.gupta@amd.com>", "Subject": "[PATCH v4 0/4] Support AMD CDX bus,\n for FPGA based CDX devices. The CDX", "Date": "Mon, 8 May 2023 16:48:08 +0530", "Message-ID": "<20230508111812.2655-1-nipun.gupta@amd.com>", "X-Mailer": "git-send-email 2.17.1", "In-Reply-To": "<20230124140746.594066-1-nipun.gupta@amd.com>", "References": "<20230124140746.594066-1-nipun.gupta@amd.com>", "MIME-Version": "1.0", "Content-Type": "text/plain", "X-EOPAttributedMessage": "0", "X-MS-PublicTrafficType": "Email", "X-MS-TrafficTypeDiagnostic": "BN8NAM11FT072:EE_|PH7PR12MB6563:EE_", "X-MS-Office365-Filtering-Correlation-Id": "9672105e-d925-46ab-0b55-08db4fb5eeab", "X-MS-Exchange-SenderADCheck": "1", "X-MS-Exchange-AntiSpam-Relay": "0", "X-Microsoft-Antispam": "BCL:0;", "X-Microsoft-Antispam-Message-Info": "\n 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", "X-Forefront-Antispam-Report": "CIP:165.204.84.17; CTRY:US; LANG:en; SCL:1; SRV:;\n IPV:CAL; SFV:NSPM; H:SATLEXMB03.amd.com; PTR:InfoDomainNonexistent; CAT:NONE;\n SFS:(13230028)(4636009)(39860400002)(346002)(396003)(136003)(376002)(451199021)(46966006)(40470700004)(36840700001)(40460700003)(2906002)(186003)(4743002)(1076003)(26005)(47076005)(336012)(40480700001)(426003)(83380400001)(36756003)(36860700001)(2616005)(81166007)(356005)(82740400003)(8936002)(8676002)(966005)(478600001)(6666004)(41300700001)(4326008)(82310400005)(316002)(70206006)(70586007)(54906003)(110136005)(44832011)(5660300002)(86362001)(36900700001);\n DIR:OUT; SFP:1101;", "X-OriginatorOrg": "amd.com", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "08 May 2023 11:18:21.4606 (UTC)", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n 9672105e-d925-46ab-0b55-08db4fb5eeab", "X-MS-Exchange-CrossTenant-Id": "3dd8961f-e488-4e60-8e11-a82d994e183d", "X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp": "\n TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17];\n Helo=[SATLEXMB03.amd.com]", "X-MS-Exchange-CrossTenant-AuthSource": "\n BN8NAM11FT072.eop-nam11.prod.protection.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "PH7PR12MB6563", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n <mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://mails.dpdk.org/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n <mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org" }, "content": "It uses sysfs interface and the vfio-cdx driver to discover\nand initialize the CDX devices.\n\nThe CDX bus and VFIO support is available at Xilinx open source tree:\nhttps://github.com/Xilinx/linux-xlnx (drivers/cdx/ and drivers/vfio/cdx)\n\nLinux CDX bus patches has been added into linux next:\nhttps://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/drivers/cdx\n\nVFIO patches are also submitted in upstream:\nhttps://www.spinics.net/lists/kvm/msg310623.html\n\nCDX is a Hardware Architecture designed for AMD FPGA devices. It\nconsists of mechanism for interaction between FPGA, Firmware and \nthe APUs (Application CPUs).\nFirmware resides on RPU (Realtime CPUs) which interacts with\nthe FPGA program manager and the APUs. The RPU provides memory-mapped\ninterface (RPU if) which is used to communicate with APUs.\n\nVFIO CDX driver provides the CDX device resources like MMIO and interrupts\nto map to user-space. DPDK CDX bus uses sysfs interface and the vfio-cdx\ndriver to discover and initialize the CDX devices for user-space\napplications.\n\nChanges v3->v4:\n- removed platform specific patch (adding config for ARM CDX)\n from this series\n\nChanges v2->v3:\n- merged cdx bus compilation enablement in the first patch\n- fixed issue reported by check-git-log.sh\n- updated release notes\n- updated offset to uint64_t instead of off_t in cdx_map_resource\n\nChanges v1->v2:\n- Moved file rte_cdx_bus.h to internal bus_cdx_driver.h\n and added this file to deivce_cdx_headers\n- Moved cdx.h to private.h\n- Removed rte_ prefix from the static symbols in .c files.\n\nChanges RFC->v1:\n- Marked few API's as internal which were not required\n to be provided to user.\n\nNipun Gupta (4):\n bus/cdx: introduce cdx bus\n bus/cdx: add DMA map and unmap support\n bus/cdx: add support for MSI\n bus/cdx: support plug unplug and dev iterator\n\n MAINTAINERS | 5 +\n doc/guides/rel_notes/release_23_07.rst | 6 +\n drivers/bus/cdx/bus_cdx_driver.h | 227 ++++++++\n drivers/bus/cdx/cdx.c | 693 +++++++++++++++++++++++++\n drivers/bus/cdx/cdx_logs.h | 37 ++\n drivers/bus/cdx/cdx_vfio.c | 615 ++++++++++++++++++++++\n drivers/bus/cdx/meson.build | 13 +\n drivers/bus/cdx/private.h | 49 ++\n drivers/bus/cdx/version.map | 13 +\n drivers/bus/meson.build | 1 +\n lib/eal/common/eal_common_interrupts.c | 21 +\n lib/eal/common/eal_interrupts.h | 1 +\n lib/eal/include/rte_interrupts.h | 32 ++\n lib/eal/version.map | 2 +\n 14 files changed, 1715 insertions(+)\n create mode 100644 drivers/bus/cdx/bus_cdx_driver.h\n create mode 100644 drivers/bus/cdx/cdx.c\n create mode 100644 drivers/bus/cdx/cdx_logs.h\n create mode 100644 drivers/bus/cdx/cdx_vfio.c\n create mode 100644 drivers/bus/cdx/meson.build\n create mode 100644 drivers/bus/cdx/private.h\n create mode 100644 drivers/bus/cdx/version.map" }