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

[Max Gurtovoy]

On 5/30/2017 1:48 PM, Sagi Grimberg wrote:
>> +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.


they are declared in patch 1/2:

+enum {
+	MLX5_CAP_UMR_FENCE_STRONG	= 0x0,
+	MLX5_CAP_UMR_FENCE_SMALL	= 0x1,
+	MLX5_CAP_UMR_FENCE_NONE		= 0x2,
+};
+

Thanks,
Max.