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{ "id": 126398, "url": "http://patches.dpdk.org/api/covers/126398/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/cover/20230421145406.12831-1-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": "<20230421145406.12831-1-nipun.gupta@amd.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20230421145406.12831-1-nipun.gupta@amd.com", "date": "2023-04-21T14:54:01", "name": "[v3,0/5] 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/20230421145406.12831-1-nipun.gupta@amd.com/mbox/", "series": [ { "id": 27819, "url": "http://patches.dpdk.org/api/series/27819/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=27819", "date": "2023-04-21T14:54:01", "name": "Support AMD CDX bus, for FPGA based CDX devices. The CDX", "version": 3, "mbox": "http://patches.dpdk.org/series/27819/mbox/" } ], "comments": "http://patches.dpdk.org/api/covers/126398/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 ABE1C429AE;\n\tFri, 21 Apr 2023 16:54:27 +0200 (CEST)", "from mails.dpdk.org (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id 4C4AC4113C;\n\tFri, 21 Apr 2023 16:54:27 +0200 (CEST)", "from NAM10-DM6-obe.outbound.protection.outlook.com\n (mail-dm6nam10on2051.outbound.protection.outlook.com [40.107.93.51])\n by mails.dpdk.org (Postfix) with ESMTP id 9570F410FB\n for <dev@dpdk.org>; Fri, 21 Apr 2023 16:54:25 +0200 (CEST)", "from MW4PR04CA0385.namprd04.prod.outlook.com (2603:10b6:303:81::30)\n by CH0PR12MB5186.namprd12.prod.outlook.com (2603:10b6:610:b9::19)\n with Microsoft SMTP Server (version=TLS1_2,\n cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6319.22; Fri, 21 Apr\n 2023 14:54:23 +0000", "from CO1NAM11FT040.eop-nam11.prod.protection.outlook.com\n (2603:10b6:303:81:cafe::ed) by MW4PR04CA0385.outlook.office365.com\n (2603:10b6:303:81::30) with Microsoft SMTP Server (version=TLS1_2,\n cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6319.25 via Frontend\n Transport; Fri, 21 Apr 2023 14:54:22 +0000", "from SATLEXMB03.amd.com (165.204.84.17) by\n CO1NAM11FT040.mail.protection.outlook.com (10.13.174.140) with Microsoft SMTP\n Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id\n 15.20.6319.27 via Frontend Transport; Fri, 21 Apr 2023 14:54:22 +0000", "from SATLEXMB08.amd.com (10.181.40.132) 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; Fri, 21 Apr\n 2023 09:54:21 -0500", "from SATLEXMB04.amd.com (10.181.40.145) by SATLEXMB08.amd.com\n (10.181.40.132) with Microsoft SMTP Server (version=TLS1_2,\n cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.34; Fri, 21 Apr\n 2023 07:54:21 -0700", "from xhdipdslab41.xilinx.com (10.180.168.240) by SATLEXMB04.amd.com\n (10.181.40.145) with Microsoft SMTP Server id 15.1.2375.34 via\n Frontend Transport; Fri, 21 Apr 2023 09:54:19 -0500" ], "ARC-Seal": "i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none;\n b=NQnSGjA3wP61ZiTSG/fqrtTo0ZKO5snSGHqix3jxVSTPwWl+7pHJA92AHl4CgWueoJY4fatbn+i7SLocbLMZdQcXt3jf/xdBlvvh1Xm0A+mZp8Y8wjc6ja9IECH0bWGpl/ujANGacRWYpxN5T0cq3xUOR8fXTVf+RmFXezTBBWGpQhHGqHkB4hI2PJYHHTKPEtySBeQ+ybGqKDHKQgUcy9VQ/+6MI5pJLq8CChCwixVfegkWdBpsIiEfjFsLV0b8ggGnzK9vjOtKAwcMcnu2j2eWeAmBxNohoyIBHqs6qav5iLU7Y2tGw21kg64cNRO8W16FCO/KAQAiB0vbtcwtOQ==", "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=pZO/pZAjoVUwgR/bSXZArls3XMHTWQkyefLQJt3M9fE=;\n b=HSSEEQ69Wwsce7vKPQVwcUVePwAlZP6+tFK/QAByVKoz4iSoGXDx374ea+A7N/vH257AdcIg7nuIssl8jYyw4o2o1pZNrhOluZcCfSHDSuA+0X6GrwbYP7/s2/t7tqARheBLhIDCW2VNktYFEGNPWNWYaCADZTrJRmAXMRwVn6+ua45YQDFdg1EexDtU1gtJNomE/0lNw8oP9hoMvB1A5goBZtaCWa56DuQv9wse2Y4x/s0hTAeECE+E17zYDmH+BQkoajT54hCykxLJe5L8N+Puqwy0p6q9RKDUP9MUUOMdUlKq/BCwju4AM2T3lrGYgKHw7gPZ3jFpD7w3SbCtqQ==", "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=pZO/pZAjoVUwgR/bSXZArls3XMHTWQkyefLQJt3M9fE=;\n b=BEiYdMXGP9i3nFgbF4u5MMdTJqcCCx9CjICq93Sod3BA6hbWdQPO8RXo9MLn7XhRa3tof094CMIqKFFF0qs8ZhpZvKgo22k1+E1qaootf8rSszat7jaoWSBjtxUrjXLk211DOf/RRDYDNKA7Il6GuV6p2fQOp4vYEgSM1LWKVL0=", "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>,\n <ferruh.yigit@amd.com>", "CC": "<harpreet.anand@amd.com>, <nikhil.agarwal@amd.com>, Nipun Gupta\n <nipun.gupta@amd.com>", "Subject": "[PATCH v3 0/5] Support AMD CDX bus,\n for FPGA based CDX devices. The CDX", "Date": "Fri, 21 Apr 2023 20:24:01 +0530", "Message-ID": "<20230421145406.12831-1-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": "CO1NAM11FT040:EE_|CH0PR12MB5186:EE_", "X-MS-Office365-Filtering-Correlation-Id": "474a6286-f717-45ee-7713-08db42784b31", "X-MS-Exchange-SenderADCheck": "1", "X-MS-Exchange-AntiSpam-Relay": "0", "X-Microsoft-Antispam": "BCL:0;", "X-Microsoft-Antispam-Message-Info": "\n 2KpJU1HIEuiY6Cg2AXhLsEPXEVcMU7EzqiT1DKUhoqxB9PAkCOpbeSGJSQKTkHrVyqvCtyGF5YomRTel8HZY7sIBUdemN1XKvuD+1YorRLAwkScKvy/HBJqrTZsVgLc4T9m09UR2FbdXOsC/ac00GPBBFVeKwuIDemKi3zCb8fSSCznkzRwUp0ANx7/4KI+q9PSa648zWEDyMZTqXDjfAEMlnC4zasYBygvo0C7WGXssRqgVEQVuglrmNpXGmghOUyHLG6MlpNFz0AsbLv9dx0udz00Mgjdj+EXRrxD60GsAAgfOKHWU9N1s8+cPkVbhEEDrcgOH0jHZvM9Jf9q+dVMMl1kAr7M0qhgKVi6I5M3GxeMnDuh6WUQRyRhQh5ePXB8APu44CGrlkD412cSNLARkKmrRe1njMCnPVZZTrfEc7elto1BU19q58WiiBkHfRfIXGWTgpWwWE/qJ4/AnmIN4Fku4fshV044h4wgN1ijExazB8Bel21Rv4QaheUGLhLJMsWKFcQXi2I3P3mrAlISbMh44vbAIwUeDB7EZJSd87cEfAVSzKtLDLS11kF6cHM0OL78ykV0tlPeHhuJetDtb3j1xk5jMyizqQ1lmaJjijLrxaoBPhJjf2tAoN7OkgmNOpRWUnuggWLZkAPbM5gm/SavHcBSm/U9xlDGGKTxufcG6nevDtkMhuUZfx/gedTfuuZEb2Vnlngt7nNP/28svJ09a5mou2RDiJ5KBET3vazmvka1YXmRdRLHt7BRV0ZOnTRvZyN2b7QViygjH9A==", "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)(376002)(39860400002)(136003)(346002)(396003)(451199021)(40470700004)(36840700001)(46966006)(110136005)(54906003)(6636002)(83380400001)(478600001)(47076005)(36860700001)(2616005)(40480700001)(966005)(26005)(1076003)(6666004)(70206006)(70586007)(81166007)(41300700001)(356005)(4326008)(336012)(426003)(316002)(82740400003)(4743002)(186003)(5660300002)(44832011)(8676002)(2906002)(40460700003)(8936002)(86362001)(36756003)(82310400005)(36900700001);\n DIR:OUT; SFP:1101;", "X-OriginatorOrg": "amd.com", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "21 Apr 2023 14:54:22.6536 (UTC)", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n 474a6286-f717-45ee-7713-08db42784b31", "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 CO1NAM11FT040.eop-nam11.prod.protection.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "CH0PR12MB5186", "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 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 (5):\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 config/arm: add AMD CDX\n\n MAINTAINERS | 5 +\n config/arm/arm64_cdx_linux_gcc | 17 +\n config/arm/meson.build | 14 +\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 16 files changed, 1746 insertions(+)\n create mode 100644 config/arm/arm64_cdx_linux_gcc\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" }