linux/Documentation/ABI/testing/sysfs-platform-dfl-fme

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What: /sys/bus/platform/devices/dfl-fme.0/ports_num
Date: June 2018
KernelVersion: 4.19
Contact: Wu Hao <hao.wu@intel.com>
Description: Read-only. One DFL FPGA device may have more than 1
port/Accelerator Function Unit (AFU). It returns the
number of ports on the FPGA device when read it.
What: /sys/bus/platform/devices/dfl-fme.0/bitstream_id
Date: June 2018
KernelVersion: 4.19
Contact: Wu Hao <hao.wu@intel.com>
Description: Read-only. It returns Bitstream (static FPGA region)
identifier number, which includes the detailed version
and other information of this static FPGA region.
What: /sys/bus/platform/devices/dfl-fme.0/bitstream_metadata
Date: June 2018
KernelVersion: 4.19
Contact: Wu Hao <hao.wu@intel.com>
Description: Read-only. It returns Bitstream (static FPGA region) meta
data, which includes the synthesis date, seed and other
information of this static FPGA region.
What: /sys/bus/platform/devices/dfl-fme.0/cache_size
Date: August 2019
KernelVersion: 5.4
Contact: Wu Hao <hao.wu@intel.com>
Description: Read-only. It returns cache size of this FPGA device.
What: /sys/bus/platform/devices/dfl-fme.0/fabric_version
Date: August 2019
KernelVersion: 5.4
Contact: Wu Hao <hao.wu@intel.com>
Description: Read-only. It returns fabric version of this FPGA device.
Userspace applications need this information to select
best data channels per different fabric design.
What: /sys/bus/platform/devices/dfl-fme.0/socket_id
Date: August 2019
KernelVersion: 5.4
Contact: Wu Hao <hao.wu@intel.com>
Description: Read-only. It returns socket_id to indicate which socket
this FPGA belongs to, only valid for integrated solution.
User only needs this information, in case standard numa node
can't provide correct information.
What: /sys/bus/platform/devices/dfl-fme.0/errors/pcie0_errors
Date: August 2019
KernelVersion: 5.4
Contact: Wu Hao <hao.wu@intel.com>
Description: Read-Write. Read this file for errors detected on pcie0 link.
Write this file to clear errors logged in pcie0_errors. Write
fails with -EINVAL if input parsing fails or input error code
doesn't match.
What: /sys/bus/platform/devices/dfl-fme.0/errors/pcie1_errors
Date: August 2019
KernelVersion: 5.4
Contact: Wu Hao <hao.wu@intel.com>
Description: Read-Write. Read this file for errors detected on pcie1 link.
Write this file to clear errors logged in pcie1_errors. Write
fails with -EINVAL if input parsing fails or input error code
doesn't match.
What: /sys/bus/platform/devices/dfl-fme.0/errors/nonfatal_errors
Date: August 2019
KernelVersion: 5.4
Contact: Wu Hao <hao.wu@intel.com>
Description: Read-only. It returns non-fatal errors detected.
What: /sys/bus/platform/devices/dfl-fme.0/errors/catfatal_errors
Date: August 2019
KernelVersion: 5.4
Contact: Wu Hao <hao.wu@intel.com>
Description: Read-only. It returns catastrophic and fatal errors detected.
What: /sys/bus/platform/devices/dfl-fme.0/errors/inject_errors
Date: August 2019
KernelVersion: 5.4
Contact: Wu Hao <hao.wu@intel.com>
Description: Read-Write. Read this file to check errors injected. Write this
file to inject errors for testing purpose. Write fails with
-EINVAL if input parsing fails or input inject error code isn't
supported.
What: /sys/bus/platform/devices/dfl-fme.0/errors/fme_errors
Date: August 2019
KernelVersion: 5.4
Contact: Wu Hao <hao.wu@intel.com>
Description: Read-Write. Read this file to get errors detected on FME.
Write this file to clear errors logged in fme_errors. Write
fials with -EINVAL if input parsing fails or input error code
doesn't match.
What: /sys/bus/platform/devices/dfl-fme.0/errors/first_error
Date: August 2019
KernelVersion: 5.4
Contact: Wu Hao <hao.wu@intel.com>
Description: Read-only. Read this file to get the first error detected by
hardware.
What: /sys/bus/platform/devices/dfl-fme.0/errors/next_error
Date: August 2019
KernelVersion: 5.4
Contact: Wu Hao <hao.wu@intel.com>
Description: Read-only. Read this file to get the second error detected by
hardware.