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IB/mlx4: Add inline-receive support

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When inline-receive is enabled, the HCA may write received
data into the receive WQE.

Inline-receive is enabled by setting its matching bit in
the QP context and each single-packet message with payload
not exceeding the receive WQE size will be delivered to
the WQE.

The completion report will indicate that the payload was placed to the WQE.

It includes:
1) Return maximum supported size of inline-receive by the hardware
in query_device vendor's data part.
2) Enable the feature when requested by the vendor data input.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Maor Gottlieb
2017-06-21 09:26:28 +03:00
committed by Doug Ledford
parent 58dcb60a22
commit ea30b966f7
4 changed files with 37 additions and 8 deletions
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3
include/uapi/rdma/mlx4-abi.h
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@@ -101,7 +101,8 @@ struct mlx4_ib_create_qp {
__u8 log_sq_bb_count;
__u8 log_sq_stride;
__u8 sq_no_prefetch;
__u8 reserved[5];
__u32 inl_recv_sz;
__u8 reserved;
};
#endif /* MLX4_ABI_USER_H */