net/mlx5e: Overcome slow response for first macsec ASO WQE

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[ Upstream commit 7e3fce82d9 ]

First ASO WQE poll causes a cache miss in hardware hence the resut is
delayed. It causes to the situation where such WQE is polled earlier
than it is needed.

Add logic to retry ASO CQ polling operation.

Fixes: 739cfa3451 ("net/mlx5: Make ASO poll CQ usable in atomic context") 
Signed-off-by: Emeel Hakim <ehakim@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Raed Salem <raeds@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Emeel Hakim 2023-03-20 13:13:55 +02:00 • committed by Greg Kroah-Hartman

parent 6f57805361

commit 047714af81

1 changed files with 8 additions and 1 deletions

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drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec.c

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