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{ "id": 127396, "url": "http://patchwork.dpdk.org/api/covers/127396/?format=api", "web_url": "http://patchwork.dpdk.org/project/dpdk/cover/20230525100821.12148-1-nipun.gupta@amd.com/", "project": { "id": 1, "url": "http://patchwork.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": "<20230525100821.12148-1-nipun.gupta@amd.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20230525100821.12148-1-nipun.gupta@amd.com", "date": "2023-05-25T10:08:16", "name": "[v5,0/5] Support AMD CDX bus", "submitter": { "id": 2928, "url": "http://patchwork.dpdk.org/api/people/2928/?format=api", "name": "Gupta, Nipun", "email": "nipun.gupta@amd.com" }, "mbox": "http://patchwork.dpdk.org/project/dpdk/cover/20230525100821.12148-1-nipun.gupta@amd.com/mbox/", "series": [ { "id": 28179, "url": "http://patchwork.dpdk.org/api/series/28179/?format=api", "web_url": "http://patchwork.dpdk.org/project/dpdk/list/?series=28179", "date": "2023-05-25T10:08:16", "name": "Support AMD CDX bus", "version": 5, "mbox": "http://patchwork.dpdk.org/series/28179/mbox/" } ], "comments": "http://patchwork.dpdk.org/api/covers/127396/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 5402F42B9A;\n\tThu, 25 May 2023 12:08:39 +0200 (CEST)", "from mails.dpdk.org (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id 15C77410F9;\n\tThu, 25 May 2023 12:08:37 +0200 (CEST)", "from NAM11-BN8-obe.outbound.protection.outlook.com\n (mail-bn8nam11on2041.outbound.protection.outlook.com [40.107.236.41])\n by mails.dpdk.org (Postfix) with ESMTP id 74A74410DC\n for <dev@dpdk.org>; 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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 <hkalra@marvell.com>, <anatoly.burakov@intel.com>,\n <stephen@networkplumber.org>", "CC": "<ferruh.yigit@amd.com>, <harpreet.anand@amd.com>,\n <nikhil.agarwal@amd.com>, Nipun Gupta <nipun.gupta@amd.com>", "Subject": "[PATCH v5 0/5] Support AMD CDX bus", "Date": "Thu, 25 May 2023 15:38:16 +0530", "Message-ID": "<20230525100821.12148-1-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": "CO1NAM11FT114:EE_|DS0PR12MB6605:EE_", "X-MS-Office365-Filtering-Correlation-Id": "4106dc3b-436c-4b29-4894-08db5d07ff3c", "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)(346002)(396003)(39860400002)(376002)(136003)(451199021)(36840700001)(40470700004)(46966006)(5660300002)(54906003)(110136005)(478600001)(966005)(8676002)(41300700001)(1076003)(44832011)(6666004)(316002)(70586007)(4326008)(26005)(70206006)(8936002)(186003)(83380400001)(47076005)(40460700003)(2616005)(2906002)(336012)(426003)(36860700001)(82740400003)(81166007)(356005)(40480700001)(82310400005)(86362001)(36756003)(36900700001);\n DIR:OUT; SFP:1101;", "X-OriginatorOrg": "amd.com", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "25 May 2023 10:08:32.9789 (UTC)", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n 4106dc3b-436c-4b29-4894-08db5d07ff3c", "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 CO1NAM11FT114.eop-nam11.prod.protection.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "DS0PR12MB6605", "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": "The CDX devices 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 CDX bus and VFIO support is available at Xilinx/AMD open source tree:\nhttps://github.com/Xilinx/linux-xlnx (drivers/cdx/ and drivers/vfio/cdx)\n\nLinux AMD CDX bus patches has been added into linux tree:\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 v4->v5\n- Split patch and have a separate commit for eal interrupt field\n (irq_count) and corresponding set/get APIs (rte_intr_irq_count_set,\n rte_intr_irq_count_get)\n- Renamed \"CDX bus\" to \"AMD CDX bus\" in documentation/commit headings\n- Removed unnecessary headers\n \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 (5):\n bus/cdx: introduce AMD CDX bus\n bus/cdx: add DMA map and unmap support\n eal/interrupts: add IRQ count in interrupt handle\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 | 222 ++++++++\n drivers/bus/cdx/cdx.c | 690 +++++++++++++++++++++++++\n drivers/bus/cdx/cdx_logs.h | 37 ++\n drivers/bus/cdx/cdx_vfio.c | 605 ++++++++++++++++++++++\n drivers/bus/cdx/meson.build | 13 +\n drivers/bus/cdx/private.h | 46 ++\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, 1694 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" }