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Add support for FPGAs connected via the vfio-platform driver #783

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Add support for FPGAs connected via the vfio-platform driver #783

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@IgnoreWarnings IgnoreWarnings commented May 22, 2024 •
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DO NOT MERGE!
This is a draft only to discuss and track progress. Changes will come in smaller PRs.
Integration of platform based fpgas.

@IgnoreWarnings IgnoreWarnings marked this pull request as draft May 22, 2024 10:26
stv0g
stv0g requested changes May 22, 2024
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This is a first round of review. I will need to go a bit deeper into the actual logic.

Some general things:

  • Please reformat all your changes with clang-format
  • Make sure your comments have a DCO sign-off (the CI check is failing)
  • Please try to consolitate/stash your commits in a way it makes the code easier to review. E.g. not everything into one commit, but smaller groups of changes which are logically belong together.

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@stv0g stv0g changed the title Support Platform Bus Fpgas Add support FPGAs connected via VFIO platform drivers May 22, 2024
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n-eiling commented May 22, 2024 •
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This is just a draft to track the progress. It's clear that it needs squashing, signing-off and formatting. It may also make sense to split it into multiple PRs.

@n-eiling n-eiling changed the title Add support FPGAs connected via VFIO platform drivers Add support for FPGAs connected via the vfio-platform driver May 22, 2024
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stv0g commented May 23, 2024

Oh okay, sorry I did not see that this PR was a draft.

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Oh okay, sorry I did not see that this PR was a draft.

I accidentally opened a PR at first and then changed to draft.
@n-eiling suggested i open a draft to track the progress and announce the feature.

Since this is work in progress, many of the changes requested are already outdated/fixed.
Please wait for the PR to comment on (smaller) issues, because many of them will be resolved till then.

@IgnoreWarnings IgnoreWarnings force-pushed the platform branch 2 times, most recently from 5b5091e to e2cd4d8 Compare June 5, 2024 09:40
@IgnoreWarnings IgnoreWarnings force-pushed the platform branch 6 times, most recently from ef5fd45 to 45f732b Compare June 11, 2024 11:36
n-eiling
n-eiling requested changes Jun 11, 2024
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common/lib/kernel/vfio_device.cpp Show resolved Hide resolved
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fpga/lib/ips/zynq.cpp Outdated
// Save ID in card so we can create mappings later when needed (e.g. when
// allocating DMA memory in host RAM)
card->addrSpaceIdDeviceToHost =
mm.getOrCreateAddressSpace("zynq_ultra_ps_e_0/HPC0_DDR_LOW");
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does this need to be hardcoded?

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@IgnoreWarnings IgnoreWarnings mentioned this pull request Jun 17, 2024
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@IgnoreWarnings IgnoreWarnings force-pushed the platform branch 2 times, most recently from 6a5ec9d to 5f3568c Compare July 1, 2024 13:48
@IgnoreWarnings IgnoreWarnings mentioned this pull request Jul 18, 2024
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@IgnoreWarnings IgnoreWarnings force-pushed the platform branch 3 times, most recently from d8ddbb4 to 1ebb82c Compare August 2, 2024 14:53
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@n-eiling n-eiling n-eiling requested changes

@stv0g stv0g Awaiting requested review from stv0g stv0g is a code owner

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