Looks like you are using 5.13 kernel for this work, FYI we added
hot plug support for the graphic stack in 5.14 kernel (see
https://www.phoronix.com/scan.php?page=news_item&px=Linux-5.14-AMDGPU-Hot-Unplug)
I am not sure about the code part since it all touches KFD driver (KFD
team can comment on that) - but I was just wondering if you try 5.14
kernel would things just work for you out of the box ?
Andrey
On 2022-04-05 22:45, Shuotao Xu wrote:
Dear AMD Colleagues,
We are from Microsoft Research, and are working on GPU disaggregation
technology.
We have created a new pull requestAdd PCIe hotplug support for amdgpu by
xushuotao · Pull Request #131 · RadeonOpenCompute/ROCK-Kernel-Driver
(github.com)
<https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2FRadeonOpenCompute%2FROCK-Kernel-Driver%2Fpull%2F131&data=04%7C01%7Candrey.grodzovsky%40amd.com%7C4e8dc7d4feb84b19edf208da17a54fac%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637848296133682200%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=GE4XHNeLaWfbuoJbM4a1ecH8KKJbKbd2mRCnFinn7eI%3D&reserved=0>in
ROCK-Kernel-Driver, which will enable PCIe hot-plug support for amdgpu.
We believe the support of hot-plug of GPU devices can open doors for
many advanced applications in data center in the next few years, and we
would like to have some reviewers on this PR so we can continue further
technical discussions around this feature.
Would you please help review this PR?
Thank you very much!
Best regards,
Shuotao Xu
