| Message ID | 20210512015339.5649-1-lizhi.hou@xilinx.com (mailing list archive) |
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CC: Lizhi Hou <lizhi.hou@xilinx.com>, <linux-fpga@vger.kernel.org>,
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Subject: [PATCH V6 XRT Alveo 00/20] XRT Alveo driver overview
Date: Tue, 11 May 2021 18:53:19 -0700
Message-ID: <20210512015339.5649-1-lizhi.hou@xilinx.com>
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|
| Series |
XRT Alveo driver overview
|
expand
|
Hello, This is V6 of patch series which adds management physical function driver for Xilinx Alveo PCIe accelerator cards. https://www.xilinx.com/products/boards-and-kits/alveo.html This driver is part of Xilinx Runtime (XRT) open source stack. XILINX ALVEO PLATFORM ARCHITECTURE Alveo PCIe FPGA based platforms have a static *shell* partition and a partial re-configurable *user* partition. The shell partition is automatically loaded from flash when host is booted and PCIe is enumerated by BIOS. Shell cannot be changed till the next cold reboot. The shell exposes two PCIe physical functions: 1. management physical function 2. user physical function The patch series includes Documentation/xrt.rst which describes Alveo platform, XRT driver architecture and deployment model in more detail. Users compile their high level design in C/C++/OpenCL or RTL into FPGA image using Vitis tools. https://www.xilinx.com/products/design-tools/vitis/vitis-platform.html The compiled image is packaged as xclbin which contains partial bitstream for the user partition and necessary metadata. Users can dynamically swap the image running on the user partition in order to switch between different workloads by loading different xclbins. XRT DRIVERS FOR XILINX ALVEO XRT Linux kernel driver *xrt-mgmt* binds to management physical function of Alveo platform. The modular driver framework is organized into several platform drivers which primarily handle the following functionality: 1. Loading firmware container also called xsabin at driver attach time 2. Loading of user compiled xclbin with FPGA Manager integration 3. Clock scaling of image running on user partition 4. In-band sensors: temp, voltage, power, etc. 5. Device reset and rescan The platform drivers are packaged into *xrt-lib* helper module with well defined interfaces. The module provides a pseudo-bus implementation for the platform drivers. More details on the driver model can be found in Documentation/xrt.rst. User physical function driver is not included in this patch series. LIBFDT REQUIREMENT XRT driver infrastructure uses Device Tree as a metadata format to discover HW subsystems in the Alveo PCIe device. The Device Tree schema used by XRT is documented in Documentation/xrt.rst. TESTING AND VALIDATION xrt-mgmt driver can be tested with full XRT open source stack which includes user space libraries, board utilities and (out of tree) first generation user physical function driver xocl. XRT open source runtime stack is available at https://github.com/Xilinx/XRT Complete documentation for XRT open source stack including sections on Alveo/XRT security and platform architecture can be found here: https://xilinx.github.io/XRT/master/html/index.html https://xilinx.github.io/XRT/master/html/security.html https://xilinx.github.io/XRT/master/html/platforms_partitions.html Changes since v5: - Revert all changes 'mgnt/MGNT' back to 'mgmt/MGMT' - Updated code base to include v5 code review comments. xrt.rst: address grammar and taxonomy subdev_id.h: defines XRT_SUBDEV_INVALID = 0 xclbin.c: change shift operation to be_to_cpu - Resolved kernel test robot errors. Changes since v4: - Added xrt_bus_type and xrt_device. All sub devices were changed from platform_bus_type/platform_device to xrt_bus_type/xrt_device. - Renamed xrt-mgmt driver to xrt-mgnt driver. - Replaced 'MGMT' with 'MGNT' and 'mgmt' with 'mgnt' in code and file names - Moved pci function calls from infrastructure to xrt-mgnt driver. - Renamed files: mgmt/main.c -> mgnt/xmgnt-main.c mgmt/main-region.c -> mgnt/xmgnt-main-region.c include/xmgmt-main.h -> include/xmgnt-main.h mgmt/fmgr-drv.c -> mgnt/xrt-mgr.c mgmt/fmgr.h -> mgnt/xrt-mgr.h - Updated code base to include v4 code review comments. Changes since v3: - Leaf drivers use regmap-mmio to access hardware registers. - Renamed driver module: xmgmt.ko -> xrt-mgmt.ko - Renamed files: calib.[c|h] -> ddr_calibration.[c|h], lib/main.[c|h] -> lib/lib-drv.[c|h], mgmt/main-impl.h - > mgmt/xmgnt.h - Updated code base to include v3 code review comments. Changes since v2: - Streamlined the driver framework into *xleaf*, *group* and *xroot* - Updated documentation to show the driver model with examples - Addressed kernel test robot errors - Added a selftest for basic driver framework - Documented device tree schema - Removed need to export libfdt symbols Changes since v1: - Updated the driver to use fpga_region and fpga_bridge for FPGA programming - Dropped platform drivers not related to PR programming to focus on XRT core framework - Updated Documentation/fpga/xrt.rst with information on XRT core framework - Addressed checkpatch issues - Dropped xrt- prefix from some header files For reference V5 version of patch series can be found here: https://lore.kernel.org/lkml/20210427205431.23896-1-lizhi.hou@xilinx.com/ https://lore.kernel.org/lkml/20210427205431.23896-2-lizhi.hou@xilinx.com/ https://lore.kernel.org/lkml/20210427205431.23896-3-lizhi.hou@xilinx.com/ https://lore.kernel.org/lkml/20210427205431.23896-4-lizhi.hou@xilinx.com/ https://lore.kernel.org/lkml/20210427205431.23896-5-lizhi.hou@xilinx.com/ https://lore.kernel.org/lkml/20210427205431.23896-6-lizhi.hou@xilinx.com/ https://lore.kernel.org/lkml/20210427205431.23896-7-lizhi.hou@xilinx.com/ https://lore.kernel.org/lkml/20210427205431.23896-8-lizhi.hou@xilinx.com/ https://lore.kernel.org/lkml/20210427205431.23896-9-lizhi.hou@xilinx.com/ https://lore.kernel.org/lkml/20210427205431.23896-10-lizhi.hou@xilinx.com/ https://lore.kernel.org/lkml/20210427205431.23896-11-lizhi.hou@xilinx.com/ https://lore.kernel.org/lkml/20210427205431.23896-12-lizhi.hou@xilinx.com/ https://lore.kernel.org/lkml/20210427205431.23896-13-lizhi.hou@xilinx.com/ https://lore.kernel.org/lkml/20210427205431.23896-14-lizhi.hou@xilinx.com/ https://lore.kernel.org/lkml/20210427205431.23896-15-lizhi.hou@xilinx.com/ https://lore.kernel.org/lkml/20210427205431.23896-16-lizhi.hou@xilinx.com/ https://lore.kernel.org/lkml/20210427205431.23896-17-lizhi.hou@xilinx.com/ https://lore.kernel.org/lkml/20210427205431.23896-18-lizhi.hou@xilinx.com/ https://lore.kernel.org/lkml/20210427205431.23896-19-lizhi.hou@xilinx.com/ https://lore.kernel.org/lkml/20210427205431.23896-20-lizhi.hou@xilinx.com/ https://lore.kernel.org/lkml/20210427205431.23896-21-lizhi.hou@xilinx.com/ Lizhi Hou (20): Documentation: fpga: Add a document describing XRT Alveo drivers fpga: xrt: driver metadata helper functions fpga: xrt: xclbin file helper functions fpga: xrt: xrt-lib driver manager fpga: xrt: group driver fpga: xrt: char dev node helper functions fpga: xrt: root driver infrastructure fpga: xrt: driver infrastructure fpga: xrt: management physical function driver (root) fpga: xrt: main driver for management function device fpga: xrt: fpga-mgr and region implementation for xclbin download fpga: xrt: VSEC driver fpga: xrt: User Clock Subsystem driver fpga: xrt: ICAP driver fpga: xrt: devctl xrt driver fpga: xrt: clock driver fpga: xrt: clock frequency counter driver fpga: xrt: DDR calibration driver fpga: xrt: partition isolation driver fpga: xrt: Kconfig and Makefile updates for XRT drivers Documentation/fpga/index.rst | 1 + Documentation/fpga/xrt.rst | 869 ++++++++++++++++++ MAINTAINERS | 11 + drivers/Makefile | 1 + drivers/fpga/Kconfig | 2 + drivers/fpga/Makefile | 5 + drivers/fpga/xrt/Kconfig | 8 + drivers/fpga/xrt/include/events.h | 45 + drivers/fpga/xrt/include/group.h | 25 + drivers/fpga/xrt/include/metadata.h | 236 +++++ drivers/fpga/xrt/include/subdev_id.h | 39 + drivers/fpga/xrt/include/xclbin-helper.h | 48 + drivers/fpga/xrt/include/xdevice.h | 131 +++ drivers/fpga/xrt/include/xleaf.h | 205 +++++ drivers/fpga/xrt/include/xleaf/axigate.h | 23 + drivers/fpga/xrt/include/xleaf/clkfreq.h | 21 + drivers/fpga/xrt/include/xleaf/clock.h | 29 + .../fpga/xrt/include/xleaf/ddr_calibration.h | 28 + drivers/fpga/xrt/include/xleaf/devctl.h | 40 + drivers/fpga/xrt/include/xleaf/icap.h | 27 + drivers/fpga/xrt/include/xmgmt-main.h | 34 + drivers/fpga/xrt/include/xroot.h | 117 +++ drivers/fpga/xrt/lib/Kconfig | 17 + drivers/fpga/xrt/lib/Makefile | 30 + drivers/fpga/xrt/lib/cdev.c | 209 +++++ drivers/fpga/xrt/lib/group.c | 278 ++++++ drivers/fpga/xrt/lib/lib-drv.c | 328 +++++++ drivers/fpga/xrt/lib/lib-drv.h | 21 + drivers/fpga/xrt/lib/subdev.c | 848 +++++++++++++++++ drivers/fpga/xrt/lib/subdev_pool.h | 53 ++ drivers/fpga/xrt/lib/xclbin.c | 381 ++++++++ drivers/fpga/xrt/lib/xleaf/axigate.c | 325 +++++++ drivers/fpga/xrt/lib/xleaf/clkfreq.c | 223 +++++ drivers/fpga/xrt/lib/xleaf/clock.c | 652 +++++++++++++ drivers/fpga/xrt/lib/xleaf/ddr_calibration.c | 210 +++++ drivers/fpga/xrt/lib/xleaf/devctl.c | 169 ++++ drivers/fpga/xrt/lib/xleaf/icap.c | 328 +++++++ drivers/fpga/xrt/lib/xleaf/ucs.c | 152 +++ drivers/fpga/xrt/lib/xleaf/vsec.c | 372 ++++++++ drivers/fpga/xrt/lib/xroot.c | 536 +++++++++++ drivers/fpga/xrt/metadata/Kconfig | 12 + drivers/fpga/xrt/metadata/Makefile | 16 + drivers/fpga/xrt/metadata/metadata.c | 578 ++++++++++++ drivers/fpga/xrt/mgmt/Kconfig | 15 + drivers/fpga/xrt/mgmt/Makefile | 19 + drivers/fpga/xrt/mgmt/root.c | 420 +++++++++ drivers/fpga/xrt/mgmt/xmgmt-main-region.c | 483 ++++++++++ drivers/fpga/xrt/mgmt/xmgmt-main.c | 662 +++++++++++++ drivers/fpga/xrt/mgmt/xmgmt.h | 33 + drivers/fpga/xrt/mgmt/xrt-mgr.c | 190 ++++ drivers/fpga/xrt/mgmt/xrt-mgr.h | 16 + include/uapi/linux/xrt/xclbin.h | 409 +++++++++ include/uapi/linux/xrt/xmgmt-ioctl.h | 46 + 53 files changed, 9976 insertions(+) create mode 100644 Documentation/fpga/xrt.rst create mode 100644 drivers/fpga/xrt/Kconfig create mode 100644 drivers/fpga/xrt/include/events.h create mode 100644 drivers/fpga/xrt/include/group.h create mode 100644 drivers/fpga/xrt/include/metadata.h create mode 100644 drivers/fpga/xrt/include/subdev_id.h create mode 100644 drivers/fpga/xrt/include/xclbin-helper.h create mode 100644 drivers/fpga/xrt/include/xdevice.h create mode 100644 drivers/fpga/xrt/include/xleaf.h create mode 100644 drivers/fpga/xrt/include/xleaf/axigate.h create mode 100644 drivers/fpga/xrt/include/xleaf/clkfreq.h create mode 100644 drivers/fpga/xrt/include/xleaf/clock.h create mode 100644 drivers/fpga/xrt/include/xleaf/ddr_calibration.h create mode 100644 drivers/fpga/xrt/include/xleaf/devctl.h create mode 100644 drivers/fpga/xrt/include/xleaf/icap.h create mode 100644 drivers/fpga/xrt/include/xmgmt-main.h create mode 100644 drivers/fpga/xrt/include/xroot.h create mode 100644 drivers/fpga/xrt/lib/Kconfig create mode 100644 drivers/fpga/xrt/lib/Makefile create mode 100644 drivers/fpga/xrt/lib/cdev.c create mode 100644 drivers/fpga/xrt/lib/group.c create mode 100644 drivers/fpga/xrt/lib/lib-drv.c create mode 100644 drivers/fpga/xrt/lib/lib-drv.h create mode 100644 drivers/fpga/xrt/lib/subdev.c create mode 100644 drivers/fpga/xrt/lib/subdev_pool.h create mode 100644 drivers/fpga/xrt/lib/xclbin.c create mode 100644 drivers/fpga/xrt/lib/xleaf/axigate.c create mode 100644 drivers/fpga/xrt/lib/xleaf/clkfreq.c create mode 100644 drivers/fpga/xrt/lib/xleaf/clock.c create mode 100644 drivers/fpga/xrt/lib/xleaf/ddr_calibration.c create mode 100644 drivers/fpga/xrt/lib/xleaf/devctl.c create mode 100644 drivers/fpga/xrt/lib/xleaf/icap.c create mode 100644 drivers/fpga/xrt/lib/xleaf/ucs.c create mode 100644 drivers/fpga/xrt/lib/xleaf/vsec.c create mode 100644 drivers/fpga/xrt/lib/xroot.c create mode 100644 drivers/fpga/xrt/metadata/Kconfig create mode 100644 drivers/fpga/xrt/metadata/Makefile create mode 100644 drivers/fpga/xrt/metadata/metadata.c create mode 100644 drivers/fpga/xrt/mgmt/Kconfig create mode 100644 drivers/fpga/xrt/mgmt/Makefile create mode 100644 drivers/fpga/xrt/mgmt/root.c create mode 100644 drivers/fpga/xrt/mgmt/xmgmt-main-region.c create mode 100644 drivers/fpga/xrt/mgmt/xmgmt-main.c create mode 100644 drivers/fpga/xrt/mgmt/xmgmt.h create mode 100644 drivers/fpga/xrt/mgmt/xrt-mgr.c create mode 100644 drivers/fpga/xrt/mgmt/xrt-mgr.h create mode 100644 include/uapi/linux/xrt/xclbin.h create mode 100644 include/uapi/linux/xrt/xmgmt-ioctl.h