Messages in this thread | | | Date | Wed, 15 Feb 2017 22:20:53 +0100 | From | Anatolij Gustschin <> | Subject | Re: [RFC 7/8] fpga-region: add sysfs interface |
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Hi Jason,
On Wed, 15 Feb 2017 11:06:12 -0700 Jason Gunthorpe jgunthorpe@obsidianresearch.com wrote: ... >The kernel could detect the bitfile starts with 'Linux_FPGA_BIT/1.0\n' >and then proceed to decode the header providing compat with the >current scheme. > >This is usually the sort of stuff I'd punt to userspace, but since the >kernel is doing request_firmware it is hard to see how that is an >option in this case...
Interesting. We have a requirement that the complete history of FPGA configurations (basic configuration and the sequence of following partial reconfigurations) should be readable from FPGA manager framework on request. Each bitfile is associated with meta-data and one should be able to read this meta-data back for complete reconfiguration chain. When the kernel decodes a header, it could optionally store the data and allow to read it back on request.
Thanks, Anatolij
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