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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>, <nikhil.agarwal@amd.com>", "Subject": "[RFC PATCH 0/6] add support for CDX bus", "Date": "Tue, 24 Jan 2023 19:37:40 +0530", "Message-ID": "<20230124140746.594066-1-nipun.gupta@amd.com>", "X-Mailer": "git-send-email 2.25.1", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Content-Type": "text/plain", "X-EOPAttributedMessage": "0", "X-MS-PublicTrafficType": "Email", "X-MS-TrafficTypeDiagnostic": "BN8NAM11FT101:EE_|IA1PR12MB6651:EE_", "X-MS-Office365-Filtering-Correlation-Id": "b182f69f-4b1b-4f30-bbd7-08dafe146151", "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 submitted at:\nhttps://lore.kernel.org/lkml/20230117134139.1298-4-nipun.gupta@amd.com/T/\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\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 | 15 +\n drivers/bus/cdx/cdx.c | 737 +++++++++++++++++++++++++\n drivers/bus/cdx/cdx.h | 54 ++\n drivers/bus/cdx/cdx_logs.h | 37 ++\n drivers/bus/cdx/cdx_vfio.c | 606 ++++++++++++++++++++\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, 1807 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" }