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common/mlx5: use just sufficient barrier for Arm
[ upstream commit 7be74edb90e3b8f272857001907d460f49524e41 ] cqe->op_own indicates if the CQE is owned by the NIC. The rest of the fields in CQE should be read only after op_own is read. On Arm platforms using "dmb ishld" is sufficient to enforce this. Fixes: 88c0733 ("net/mlx5: extend Rx completion with error handling") Signed-off-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com> Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com> Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
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