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| author | Wu Hao <hao.wu@intel.com> | 2018-06-30 03:53:12 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-07-15 14:55:44 +0300 |
| commit | 41a8b2c56470b7e4e3e2db93324d50bbbf60cdc4 (patch) | |
| tree | 4e3314c007e056d39805aa8e49cd42678ac9926a /Documentation/ABI/testing/sysfs-class-fpga-region | |
| parent | 99a560bde313892f87ca81db568a829d3d205882 (diff) | |
| download | linux-41a8b2c56470b7e4e3e2db93324d50bbbf60cdc4.tar.xz | |
fpga: region: add compat_id support
This patch introduces a compat_id pointer member and sysfs interface
for each fpga region, similar as compat_id for fpga manager, it allows
applications to read the per region compat_id for compatibility
checking before other actions on this fpga-region (e.g. PR).
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Acked-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/ABI/testing/sysfs-class-fpga-region')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-fpga-region | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-fpga-region b/Documentation/ABI/testing/sysfs-class-fpga-region new file mode 100644 index 000000000000..bc7ec644acc9 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-fpga-region @@ -0,0 +1,9 @@ +What: /sys/class/fpga_region/<region>/compat_id +Date: June 2018 +KernelVersion: 4.19 +Contact: Wu Hao <hao.wu@intel.com> +Description: FPGA region id for compatibility check, e.g. compatibility + of the FPGA reconfiguration hardware and image. This value + is defined or calculated by the layer that is creating the + FPGA region. This interface returns the compat_id value or + just error code -ENOENT in case compat_id is not used. |