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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>
10 lines
433 B
Plaintext
10 lines
433 B
Plaintext
What: /sys/class/fpga_region/<region>/compat_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: FPGA region id for compatibility check, e.g. compatibility
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of the FPGA reconfiguration hardware and image. This value
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is defined or calculated by the layer that is creating the
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FPGA region. This interface returns the compat_id value or
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just error code -ENOENT in case compat_id is not used.
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