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rxe: Prefetching pages with ibv_advise_mr(3) #1605

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Merged
merged 1 commit into from
Jul 4, 2025

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ddmatsu
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@ddmatsu ddmatsu commented May 2, 2025

ibv_advise_mr(3) has been available only in mlx5, but it is now possible to use it with rxe because the ODP feature was already merged.
This change enables the library API for user-space applications.

There are kernel-side patches to handle prefetching requests in the kernel:
cf. https://lore.kernel.org/linux-rdma/20250522111955.3227-1-dskmtsd@gmail.com/T/#t
(merged)

Add a new handler to rxe so that the kernel module can handle the requests
from user-space applications.

Signed-off-by: Daisuke Matsuda <dskmtsd@gmail.com>
@ddmatsu ddmatsu marked this pull request as ready for review May 2, 2025 03:25
@jgunthorpe jgunthorpe merged commit 0aa47bc into linux-rdma:master Jul 4, 2025
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2 participants