Public bug reported:

DAMBUF is backported using the two series of patches:

First, we need the series of 3 patches at: 
  https://lore.kernel.org/all/20211012120903.96933-1-galpr...@amazon.com/

- dma-buf: Fix pin callback comment
- RDMA/umem: Allow pinned dmabuf umem usage
- RDMA/efa: Add support for dmabuf memory regions

Second, we need series of 4 patches at:
  https://lore.kernel.org/all/0-v1-bd147097458e+ede-umem_dmabuf_...@nvidia.com/

Note: The changes made by first patch in series "net/mlx5: Add IFC bits
for mkey ATS" had already been there in Ubuntu jammy "master-next"

- (Already there in jammy ) net/mlx5: Add IFC bits for mkey ATS
- RDMA/core: Add UVERBS_ATTR_RAW_FD
- RDMA/mlx5: Add support for dmabuf to devx umem
- RDMA/mlx5: Enable ATS support for MRs and umems

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2038589

Title:
  Backport DMABUF support from Upstream to Ubuntu Jammy

Status in linux package in Ubuntu:
  New

Bug description:
  DAMBUF is backported using the two series of patches:

  First, we need the series of 3 patches at: 
    https://lore.kernel.org/all/20211012120903.96933-1-galpr...@amazon.com/

  - dma-buf: Fix pin callback comment
  - RDMA/umem: Allow pinned dmabuf umem usage
  - RDMA/efa: Add support for dmabuf memory regions

  Second, we need series of 4 patches at:
    
https://lore.kernel.org/all/0-v1-bd147097458e+ede-umem_dmabuf_...@nvidia.com/

  Note: The changes made by first patch in series "net/mlx5: Add IFC
  bits for mkey ATS" had already been there in Ubuntu jammy "master-
  next"

  - (Already there in jammy ) net/mlx5: Add IFC bits for mkey ATS
  - RDMA/core: Add UVERBS_ATTR_RAW_FD
  - RDMA/mlx5: Add support for dmabuf to devx umem
  - RDMA/mlx5: Enable ATS support for MRs and umems

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