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{ "id": 126030, "url": "http://patches.dpdk.org/api/covers/126030/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/cover/20230413132704.17586-1-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": "<20230413132704.17586-1-nipun.gupta@amd.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20230413132704.17586-1-nipun.gupta@amd.com", "date": "2023-04-13T13:26:58", "name": "[v2,0/6] add support for CDX bus", "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/20230413132704.17586-1-nipun.gupta@amd.com/mbox/", "series": [ { "id": 27696, "url": "http://patches.dpdk.org/api/series/27696/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=27696", "date": "2023-04-13T13:27:01", "name": "add support for CDX bus", "version": 2, "mbox": "http://patches.dpdk.org/series/27696/mbox/" } ], "comments": "http://patches.dpdk.org/api/covers/126030/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 E359942933;\n\tThu, 13 Apr 2023 15:28:05 +0200 (CEST)", "from mails.dpdk.org (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id E291A41138;\n\tThu, 13 Apr 2023 15:27:55 +0200 (CEST)", "from NAM12-DM6-obe.outbound.protection.outlook.com\n (mail-dm6nam12on2041.outbound.protection.outlook.com [40.107.243.41])\n by mails.dpdk.org (Postfix) with ESMTP id 81A3C41153\n for <dev@dpdk.org>; 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helo=SATLEXMB04.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 v2 0/6] add support for CDX bus", "Date": "Thu, 13 Apr 2023 18:56:58 +0530", "Message-ID": "<20230413132704.17586-1-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": "DM6NAM11FT045:EE_|SA3PR12MB7805:EE_", "X-MS-Office365-Filtering-Correlation-Id": "e4b6acc8-5d64-4b3d-324a-08db3c22e0e8", "X-MS-Exchange-SenderADCheck": "1", "X-MS-Exchange-AntiSpam-Relay": "0", "X-Microsoft-Antispam": "BCL:0;", "X-Microsoft-Antispam-Message-Info": "\n pJFR18+qX2ZzFW9HQT153R3E/IILjRRHkOivSPwlr0qyBbLCWcWikkGldehXvUPJmxsxidClyoYqtLAkspKr42T2QYBmzhSrs/2f81tnj87zAYuVm5syc05l8G3ZV8VLDAeQnpOWemZZ0ONzFUbkWvSYKj9JToTjENVPMJsV8sBRonCYkx6mosugum/CC7AD70Rd9tkrN5FWN3UpbNCcsmp5yQwf358QxHjRI7ExFWo1ZPnbtb5fnZ9SfKQaICF7PNYUGV/amLg13WLQ7Tkl5WJSk3K4Mi2BuB6cMihA3y+oHbD6ckHgagyT1CSnrpWVqRxCPq5hDKVG6VEBhb8yGfWioyBjAfiWlj/TTCz4uYJ6Ycn4S3Wl1zGiZYXm3OSiOqDGXSnKlZwCyI1VqM6Zf6z9trD3UIgnd/kC0S2BpDGn82nKwZLJkMsWLjD3yW9SJUCAj3OM9C/bpNbM7qrUEMMctR3RfZDePvpmT17hPrjW1bOzG9DBAnEixvPjGBQt5TRVHLfekSlV5dzwIGJ4+Y7vZm2CiI7FqciSVyRJKKLwKyTHc7bOIBV/gsxQe+7NT1f5NWbnVyaKjR3dy3Jyn+fP77FDzwwii3Qz3mmhYPqKQLg15+daBM4KFvTt90miSHt9ZE4UpnjGcFrPUh2SbE/tmZmfgZ0ykRfoht1BfsB1PeTL+B45u1yreZD88PBpZKCLxdLmgSKuK76IlB4jIxqojl5lzv3oauZ9jnCkLB9dUkWHQ/9J9IsS1vrsxxoF79IXP7xgg3MjYDrlgxncuA==", "X-Forefront-Antispam-Report": "CIP:165.204.84.17; CTRY:US; LANG:en; SCL:1; SRV:;\n IPV:CAL; SFV:NSPM; H:SATLEXMB04.amd.com; PTR:InfoDomainNonexistent; CAT:NONE;\n SFS:(13230028)(4636009)(136003)(396003)(346002)(376002)(39860400002)(451199021)(40470700004)(36840700001)(46966006)(6666004)(40460700003)(966005)(70206006)(70586007)(4326008)(36756003)(110136005)(2906002)(44832011)(86362001)(81166007)(82740400003)(356005)(41300700001)(5660300002)(82310400005)(8676002)(8936002)(316002)(478600001)(40480700001)(54906003)(1076003)(26005)(336012)(426003)(36860700001)(2616005)(186003)(47076005)(36900700001);\n DIR:OUT; SFP:1101;", "X-OriginatorOrg": "amd.com", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "13 Apr 2023 13:27:50.1987 (UTC)", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n e4b6acc8-5d64-4b3d-324a-08db3c22e0e8", "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=[SATLEXMB04.amd.com]", "X-MS-Exchange-CrossTenant-AuthSource": "\n DM6NAM11FT045.eop-nam11.prod.protection.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "SA3PR12MB7805", "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": "Support AMD CDX bus, for FPGA based CDX devices. The CDX \ndevices are memory mapped on system bus for embedded CPUs.\n\nIt uses sysfs interface and the vfio-cdx driver to discover\nand initialize the CDX devices.\n\nThe patches are intended for DPDK 23.07 release, and have been sent\nas an RFC as patches are yet to be merged in Linux.\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 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 (6):\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 bus: enable cdx bus\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 drivers/bus/cdx/bus_cdx_driver.h | 227 ++++++++\n drivers/bus/cdx/cdx.c | 694 +++++++++++++++++++++++++\n drivers/bus/cdx/cdx_logs.h | 37 ++\n drivers/bus/cdx/cdx_vfio.c | 619 ++++++++++++++++++++++\n drivers/bus/cdx/meson.build | 12 +\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 15 files changed, 1744 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" }