Re: [PATCH rdma-next v2 2/3] RDMA/rw: Support threshold for registration vs scattering to local pages

[Bart Van Assche <bvanassche@xxxxxxx>]

On 10/7/19 6:59 AM, Leon Romanovsky wrote:
> diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
> index 4f671378dbfc..60fd98a9b7e8 100644
> --- a/include/rdma/ib_verbs.h
> +++ b/include/rdma/ib_verbs.h
> @@ -445,6 +445,8 @@ struct ib_device_attr {
>   	struct ib_tm_caps	tm_caps;
>   	struct ib_cq_caps       cq_caps;
>   	u64			max_dm_size;
> +	/* Max entries for sgl for optimized performance per READ */
                                   ^^^^^^^^^
                                   optimal?

Should it be mentioned that zero means that the HCA has not set this 
parameter?

> +	u32			max_sgl_rd;

Thanks,

Bart.