On Sun, 01 Feb 2026 16:34:03 +0200, Edward Srouji wrote:
> This patch series introduces dma-buf export support for RDMA/InfiniBand
> devices, enabling userspace applications to export RDMA PCI-backed
> memory regions (such as device memory or mlx5 UAR pages) as dma-buf file
> descriptors.
>
> This allows PCI device memory to be shared with other kernel subsystems
> (e.g., graphics or media) or between userspace processes, via the
> standard dma-buf interface, avoiding unnecessary copies and enabling
> efficient peer-to-peer (P2P) DMA transfers. See [1] for background on
> dma-buf.
>
> [...]
Applied, thanks!
[1/3] RDMA/uverbs: Support external FD uobjects
https://git.kernel.org/rdma/rdma/c/6b848074a32078
[2/3] RDMA/uverbs: Add DMABUF object type and operations
https://git.kernel.org/rdma/rdma/c/e6738fe6cad448
[3/3] RDMA/mlx5: Implement DMABUF export ops
https://git.kernel.org/rdma/rdma/c/992a14bb2150a1
Best regards,
--
Leon Romanovsky <[email protected]>
