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core/hmem: introduce hmem_data field to memory registration #8787

Merged
merged 1 commit into from
Apr 18, 2023
Merged

core/hmem: introduce hmem_data field to memory registration #8787

merged 1 commit into from
Apr 18, 2023

Commits on Apr 18, 2023

  1. core/hmem: introduce hmem_data field to memory registration 

    Introduce a wildcard field hmem_data to provide an extension point for
HMEM interfaces that require additional information to device id.

The immediate use case is to allow different providers to communicate
the presence of a GDR handle. This is achieved with a companion flag,
i.e. OFI_HMEM_DATA_GDRCOPY_HANDLE.

Furthermore, this change makes it possible to offload similar operations
to the user application, e.g. GDR pinning.

Signed-off-by: Wenduo Wang <wenduwan@amazon.com>
    @wenduwan
    wenduwan committed Apr 18, 2023
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