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{ "id": 125849, "url": "http://patches.dpdk.org/api/covers/125849/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/cover/20230407060152.16335-1-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": "<20230407060152.16335-1-nipun.gupta@amd.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20230407060152.16335-1-nipun.gupta@amd.com", "date": "2023-04-07T06:01:46", "name": "[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/20230407060152.16335-1-nipun.gupta@amd.com/mbox/", "series": [ { "id": 27640, "url": "http://patches.dpdk.org/api/series/27640/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=27640", "date": "2023-04-07T06:01:46", "name": "add support for CDX bus", "version": 1, "mbox": "http://patches.dpdk.org/series/27640/mbox/" } ], "comments": "http://patches.dpdk.org/api/covers/125849/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 A70B0428E2;\n\tFri, 7 Apr 2023 08:02:31 +0200 (CEST)", "from mails.dpdk.org (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id 33BD140DDB;\n\tFri, 7 Apr 2023 08:02:31 +0200 (CEST)", "from NAM10-DM6-obe.outbound.protection.outlook.com\n (mail-dm6nam10on2072.outbound.protection.outlook.com [40.107.93.72])\n by mails.dpdk.org (Postfix) with ESMTP id 8677940041\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 0/6] add support for CDX bus", "Date": "Fri, 7 Apr 2023 11:31:46 +0530", "Message-ID": "<20230407060152.16335-1-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": "BN8NAM11FT087:EE_|CY8PR12MB7612:EE_", "X-MS-Office365-Filtering-Correlation-Id": "ade43303-ab3b-4bc9-abd1-08db372da932", "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; 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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\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\nRFC patches in DPDK were submitted at:\nhttp://patches.dpdk.org/project/dpdk/patch/20230124140746.594066-2-nipun.gupta@amd.com/\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/cdx.c | 743 +++++++++++++++++++++++++\n drivers/bus/cdx/cdx.h | 54 ++\n drivers/bus/cdx/cdx_logs.h | 37 ++\n drivers/bus/cdx/cdx_vfio.c | 598 ++++++++++++++++++++\n drivers/bus/cdx/meson.build | 13 +\n drivers/bus/cdx/rte_bus_cdx.h | 245 ++++++++\n drivers/bus/cdx/version.map | 21 +\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, 1804 insertions(+)\n create mode 100644 config/arm/arm64_cdx_linux_gcc\n create mode 100644 drivers/bus/cdx/cdx.c\n create mode 100644 drivers/bus/cdx/cdx.h\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/rte_bus_cdx.h\n create mode 100644 drivers/bus/cdx/version.map" }