IB/mlx5: Add support for CQE compressing

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CQE compressing reduces PCI overhead by coalescing and compressing
multiple CQEs into a single merged CQE. Successful compressing
improves message rate especially for small packet traffic.

CQE compressing is supported for all 64B CQE formats (with certain
limitations) generated by RQ/Responder or by SQ/Requestor.

Signed-off-by: Bodong Wang <bodong@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>

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Bodong Wang 2016-10-31 12:16:45 +02:00 • committed by Doug Ledford

parent 7e43a2a5ba

commit 1cbe6fc86c

2 changed files with 32 additions and 2 deletions

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30

drivers/infiniband/hw/mlx5/cq.c

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4

include/uapi/rdma/mlx5-abi.h

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