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mlx4: Add blue flame support for kernel consumers

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Using blue flame can improve latency by allowing the HW to more efficiently
access the WQE. This patch presents two functions that are used to allocate or
release HW resources for using blue flame; the caller need to supply a struct
mlx4_bf object when allocating resources. Consumers that make use of this API
should post doorbells to the UAR object pointed by the initialized struct
mlx4_bf;

Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eli Cohen 2011-03-22 22:38:41 +00:00 • committed by David S. Miller
parent 1679200f91
commit c1b43dca13
5 changed files with 142 additions and 0 deletions
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1
include/linux/mlx4/qp.h
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@ -303,6 +303,7 @@ struct mlx4_wqe_data_seg {
enum {
MLX4_INLINE_ALIGN = 64,
MLX4_INLINE_SEG = 1 << 31,
};
struct mlx4_wqe_inline_seg {