The FPGA subsystem supports reprogramming FPGAs dynamically under Linux. Some of the core intentions of the FPGA subsystems are:
The FPGA subsystem is vendor agnostic.
The FPGA subsystem separates upper layers (userspace interfaces and enumeration) from lower layers that know how to program a specific FPGA.
Code should not be shared between upper and lower layers. This should go without saying. If that seems necessary, there’s probably framework functionality that can be added that will benefit other users. Write the linux-fpga mailing list and maintainers and seek out a solution that expands the framework for broad reuse.
Generally, when adding code, think of the future. Plan for reuse.
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