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init Nvidia RDMA/ PCIe P2P Support #107

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@sjkelly sjkelly commented Nov 14, 2022

This adds support for Nvidia RDMA to allow for PCIe P2P transfers between the a LiteX device and a Nvidia GPU.

The basic API is documented here:
https://docs.nvidia.com/cuda/gpudirect-rdma/index.html

This has been tested with the open source Nvidia drivers: https://github.com/NVIDIA/open-gpu-kernel-modules

The feature is selected in user/kernel by setting:

make NV_DMA=true

Co-authored-by: Tim Besard tim.besard@gmail.com
Co-authored-by: Elliot Saba staticfloat@gmail.com

This adds support for Nvidia RDMA to allow for PCIe P2P
transfers betweeen the a LiteX device and a Nvidia GPU.

The basic API is documented here:
https://docs.nvidia.com/cuda/gpudirect-rdma/index.html

This has been tested with the open source Nvidia drivers:
https://github.com/NVIDIA/open-gpu-kernel-modules

The feature is selected in user/kernel by setting:
```
make NV_DMA=true
```

Co-authored-by: Tim Besard <tim.besard@gmail.com>
Co-authored-by: Elliot Saba <staticfloat@gmail.com>
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I have reviewed this PR and it LGTM!

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2 participants