RDMA/mlx5: Introduce mlx5_umr_post_send_wait()

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Introduce mlx5_umr_post_send_wait() that uses a UMR adjusted flow for
posting WQEs. The next patches will gradually move UMR operations to use
this flow. Once done, will get rid of mlx5_ib_post_send_wait().

mlx5_umr_post_send_wait gets already written WQE segments and will only
memcpy it to the SQ. This way, we avoid packing all the data in a WR just
to unpack it into the WQE.

Link: https://lore.kernel.org/r/f027dd592fde62402b2d49efded8d1d22229d22b.1649747695.git.leonro@nvidia.com
Signed-off-by: Aharon Landau <aharonl@nvidia.com>
Reviewed-by: Michael Guralnik <michaelgur@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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Aharon Landau 2022-04-12 10:24:01 +03:00 • committed by Jason Gunthorpe

parent fe765aeb77

commit 6f0689fdf1

2 changed files with 104 additions and 0 deletions

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92

drivers/infiniband/hw/mlx5/umr.c

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12

drivers/infiniband/hw/mlx5/umr.h

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