RDMA/rxe: Enable asynchronous prefetch for ODP MRs

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Calling ibv_advise_mr(3) with flags other than IBV_ADVISE_MR_FLAG_FLUSH
invokes an asynchronous request. It is best-effort, and thus can safely be
deferred to the system-wide workqueue.

The reference counter in rxe_mr is used to ensure that the MRs persist and
that rxe is not terminated until the queued work is done.

Signed-off-by: Daisuke Matsuda <dskmtsd@gmail.com>
Link: https://patch.msgid.link/20250522111955.3227-3-dskmtsd@gmail.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>

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Daisuke Matsuda 2025-05-22 11:19:55 +00:00 • committed by Leon Romanovsky

parent 3576b0df15

commit 9284bc34c7

1 changed files with 85 additions and 2 deletions

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87

drivers/infiniband/sw/rxe/rxe_odp.c

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