linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
* [PATCH V6 XRT Alveo 00/20] XRT Alveo driver overview
@ 2021-05-12  1:53 Lizhi Hou
  2021-05-12  1:53 ` [PATCH V6 XRT Alveo 01/20] Documentation: fpga: Add a document describing XRT Alveo drivers Lizhi Hou
                   ` (19 more replies)
  0 siblings, 20 replies; 26+ messages in thread
From: Lizhi Hou @ 2021-05-12  1:53 UTC (permalink / raw)
  To: linux-kernel
  Cc: Lizhi Hou, linux-fpga, maxz, sonal.santan, yliu, michal.simek,
	stefanos, devicetree, trix, mdf, robh

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

-- 
2.27.0


^ permalink raw reply	[flat|nested] 26+ messages in thread

end of thread, other threads:[~2021-05-20  2:49 UTC | newest]

Thread overview: 26+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-05-12  1:53 [PATCH V6 XRT Alveo 00/20] XRT Alveo driver overview Lizhi Hou
2021-05-12  1:53 ` [PATCH V6 XRT Alveo 01/20] Documentation: fpga: Add a document describing XRT Alveo drivers Lizhi Hou
2021-05-17 14:22   ` Tom Rix
2021-05-12  1:53 ` [PATCH V6 XRT Alveo 02/20] fpga: xrt: driver metadata helper functions Lizhi Hou
2021-05-12  1:53 ` [PATCH V6 XRT Alveo 03/20] fpga: xrt: xclbin file " Lizhi Hou
2021-05-12  1:53 ` [PATCH V6 XRT Alveo 04/20] fpga: xrt: xrt-lib driver manager Lizhi Hou
2021-05-12  1:53 ` [PATCH V6 XRT Alveo 05/20] fpga: xrt: group driver Lizhi Hou
2021-05-12  1:53 ` [PATCH V6 XRT Alveo 06/20] fpga: xrt: char dev node helper functions Lizhi Hou
2021-05-12  1:53 ` [PATCH V6 XRT Alveo 07/20] fpga: xrt: root driver infrastructure Lizhi Hou
2021-05-12  1:53 ` [PATCH V6 XRT Alveo 08/20] fpga: xrt: " Lizhi Hou
2021-05-13 15:27   ` Tom Rix
2021-05-20  2:48     ` Lizhi Hou
2021-05-12  1:53 ` [PATCH V6 XRT Alveo 09/20] fpga: xrt: management physical function driver (root) Lizhi Hou
2021-05-12  1:53 ` [PATCH V6 XRT Alveo 10/20] fpga: xrt: main driver for management function device Lizhi Hou
2021-05-12  1:53 ` [PATCH V6 XRT Alveo 11/20] fpga: xrt: fpga-mgr and region implementation for xclbin download Lizhi Hou
2021-05-12  1:53 ` [PATCH V6 XRT Alveo 12/20] fpga: xrt: VSEC driver Lizhi Hou
2021-05-12  1:53 ` [PATCH V6 XRT Alveo 13/20] fpga: xrt: User Clock Subsystem driver Lizhi Hou
2021-05-12  1:53 ` [PATCH V6 XRT Alveo 14/20] fpga: xrt: ICAP driver Lizhi Hou
2021-05-12  1:53 ` [PATCH V6 XRT Alveo 15/20] fpga: xrt: devctl xrt driver Lizhi Hou
2021-05-12  1:53 ` [PATCH V6 XRT Alveo 16/20] fpga: xrt: clock driver Lizhi Hou
2021-05-13 15:48   ` Tom Rix
2021-05-20  2:49     ` Lizhi Hou
2021-05-12  1:53 ` [PATCH V6 XRT Alveo 17/20] fpga: xrt: clock frequency counter driver Lizhi Hou
2021-05-12  1:53 ` [PATCH V6 XRT Alveo 18/20] fpga: xrt: DDR calibration driver Lizhi Hou
2021-05-12  1:53 ` [PATCH V6 XRT Alveo 19/20] fpga: xrt: partition isolation driver Lizhi Hou
2021-05-12  1:53 ` [PATCH V6 XRT Alveo 20/20] fpga: xrt: Kconfig and Makefile updates for XRT drivers Lizhi Hou

This is a public inbox, see mirroring instructions
on how to clone and mirror all data and code used for this inbox