diff options
| author |   Wu Hao <hao.wu@intel.com> | 2019-08-12 10:50:01 +0800 |
|---|---|---|
| committer |   Moritz Fischer <mdf@kernel.org> | 2019-09-03 19:35:41 -0700 |
| commit | 44d247534ff266404ccb44c2f52131a850348919 (patch) | |
| tree | e366ea4405aead44577cb9c61018ba3910d13330 /Documentation/ABI | |
| parent | fpga: dfl: afu: expose __afu_port_enable/disable function. (diff) | |
| download | linux-dev-44d247534ff266404ccb44c2f52131a850348919.tar.xz linux-dev-44d247534ff266404ccb44c2f52131a850348919.zip | |
fpga: dfl: afu: add error reporting support.
Error reporting is one important private feature, it reports error
detected on port and accelerated function unit (AFU). It introduces
several sysfs interfaces to allow userspace to check and clear
errors detected by hardware.
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>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-platform-dfl-port | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-platform-dfl-port b/Documentation/ABI/testing/sysfs-platform-dfl-port index c2660e4a246b..65658267fcc0 100644 --- a/Documentation/ABI/testing/sysfs-platform-dfl-port +++ b/Documentation/ABI/testing/sysfs-platform-dfl-port @@ -74,3 +74,28 @@ KernelVersion: 5.4 Contact: Wu Hao <hao.wu@intel.com> Description: Read-only. Read this file to get the status of issued command to userclck_freqcntrcmd. + +What: /sys/bus/platform/devices/dfl-port.0/errors/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 port and + Accelerated Function Unit (AFU). Write error code to this file + to clear errors. Write fails with -EINVAL if input parsing + fails or input error code doesn't match. Write fails with + -EBUSY or -ETIMEDOUT if error can't be cleared as hardware + in low power state (-EBUSY) or not respoding (-ETIMEDOUT). + +What: /sys/bus/platform/devices/dfl-port.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-port.0/errors/first_malformed_req +Date: August 2019 +KernelVersion: 5.4 +Contact: Wu Hao <hao.wu@intel.com> +Description: Read-only. Read this file to get the first malformed request + captured by hardware. |