Re: [PATCH v2 2/2] IB/mlx5: set UMR wqe fence according to HCA cap

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+static u8 mlx5_get_umr_fence(u8 umr_fence_cap)
+{
+	switch (umr_fence_cap) {
+	case MLX5_CAP_UMR_FENCE_NONE:
+		return MLX5_FENCE_MODE_NONE;
+	case MLX5_CAP_UMR_FENCE_SMALL:
+		return MLX5_FENCE_MODE_INITIATOR_SMALL;
+	default:
+		return MLX5_FENCE_MODE_STRONG_ORDERING;
+	}
+}

Where are the MLX5_CAP_UMR defines declared? Am I missing something?

What is the value of MLX5_CAP_UMR_FENCE_NONE? if its zero then this
change is not backwards compatible with older FW.
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