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cb3c2c47e3
This patch adds support for global error reporting for FPGA Management Engine (FME), it introduces sysfs interfaces to report different error detected by the hardware, and allow user to clear errors or inject error for testing purpose. Signed-off-by: Luwei Kang <luwei.kang@intel.com> Signed-off-by: Ananda Ravuri <ananda.ravuri@intel.com> Signed-off-by: Xu Yilun <yilun.xu@intel.com> Signed-off-by: Wu Hao <hao.wu@intel.com> Acked-by: Alan Tull <atull@kernel.org> Signed-off-by: Moritz Fischer <mdf@kernel.org>
109 lines
4.0 KiB
Plaintext
109 lines
4.0 KiB
Plaintext
What: /sys/bus/platform/devices/dfl-fme.0/ports_num
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Date: June 2018
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KernelVersion: 4.19
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Contact: Wu Hao <hao.wu@intel.com>
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Description: Read-only. One DFL FPGA device may have more than 1
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port/Accelerator Function Unit (AFU). It returns the
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number of ports on the FPGA device when read it.
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What: /sys/bus/platform/devices/dfl-fme.0/bitstream_id
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Date: June 2018
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KernelVersion: 4.19
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Contact: Wu Hao <hao.wu@intel.com>
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Description: Read-only. It returns Bitstream (static FPGA region)
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identifier number, which includes the detailed version
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and other information of this static FPGA region.
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What: /sys/bus/platform/devices/dfl-fme.0/bitstream_metadata
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Date: June 2018
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KernelVersion: 4.19
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Contact: Wu Hao <hao.wu@intel.com>
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Description: Read-only. It returns Bitstream (static FPGA region) meta
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data, which includes the synthesis date, seed and other
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information of this static FPGA region.
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What: /sys/bus/platform/devices/dfl-fme.0/cache_size
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Date: August 2019
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KernelVersion: 5.4
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Contact: Wu Hao <hao.wu@intel.com>
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Description: Read-only. It returns cache size of this FPGA device.
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What: /sys/bus/platform/devices/dfl-fme.0/fabric_version
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Date: August 2019
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KernelVersion: 5.4
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Contact: Wu Hao <hao.wu@intel.com>
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Description: Read-only. It returns fabric version of this FPGA device.
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Userspace applications need this information to select
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best data channels per different fabric design.
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What: /sys/bus/platform/devices/dfl-fme.0/socket_id
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Date: August 2019
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KernelVersion: 5.4
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Contact: Wu Hao <hao.wu@intel.com>
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Description: Read-only. It returns socket_id to indicate which socket
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this FPGA belongs to, only valid for integrated solution.
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User only needs this information, in case standard numa node
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can't provide correct information.
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What: /sys/bus/platform/devices/dfl-fme.0/errors/pcie0_errors
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Date: August 2019
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KernelVersion: 5.4
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Contact: Wu Hao <hao.wu@intel.com>
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Description: Read-Write. Read this file for errors detected on pcie0 link.
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Write this file to clear errors logged in pcie0_errors. Write
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fails with -EINVAL if input parsing fails or input error code
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doesn't match.
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What: /sys/bus/platform/devices/dfl-fme.0/errors/pcie1_errors
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Date: August 2019
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KernelVersion: 5.4
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Contact: Wu Hao <hao.wu@intel.com>
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Description: Read-Write. Read this file for errors detected on pcie1 link.
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Write this file to clear errors logged in pcie1_errors. Write
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fails with -EINVAL if input parsing fails or input error code
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doesn't match.
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What: /sys/bus/platform/devices/dfl-fme.0/errors/nonfatal_errors
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Date: August 2019
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KernelVersion: 5.4
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Contact: Wu Hao <hao.wu@intel.com>
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Description: Read-only. It returns non-fatal errors detected.
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What: /sys/bus/platform/devices/dfl-fme.0/errors/catfatal_errors
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Date: August 2019
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KernelVersion: 5.4
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Contact: Wu Hao <hao.wu@intel.com>
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Description: Read-only. It returns catastrophic and fatal errors detected.
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What: /sys/bus/platform/devices/dfl-fme.0/errors/inject_errors
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Date: August 2019
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KernelVersion: 5.4
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Contact: Wu Hao <hao.wu@intel.com>
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Description: Read-Write. Read this file to check errors injected. Write this
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file to inject errors for testing purpose. Write fails with
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-EINVAL if input parsing fails or input inject error code isn't
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supported.
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What: /sys/bus/platform/devices/dfl-fme.0/errors/fme_errors
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Date: August 2019
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KernelVersion: 5.4
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Contact: Wu Hao <hao.wu@intel.com>
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Description: Read-Write. Read this file to get errors detected on FME.
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Write this file to clear errors logged in fme_errors. Write
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fials with -EINVAL if input parsing fails or input error code
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doesn't match.
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What: /sys/bus/platform/devices/dfl-fme.0/errors/first_error
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Date: August 2019
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KernelVersion: 5.4
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Contact: Wu Hao <hao.wu@intel.com>
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Description: Read-only. Read this file to get the first error detected by
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hardware.
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What: /sys/bus/platform/devices/dfl-fme.0/errors/next_error
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Date: August 2019
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KernelVersion: 5.4
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Contact: Wu Hao <hao.wu@intel.com>
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Description: Read-only. Read this file to get the second error detected by
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hardware.
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