netdev - Re: [PATCH rdma-next 2/3] RDMA/mlx5: Add capability for max sge to get optimized performance

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Date:   Mon, 7 Oct 2019 00:13:02 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Leon Romanovsky <leon@...nel.org>
Cc:     Doug Ledford <dledford@...hat.com>,
        Jason Gunthorpe <jgg@...lanox.com>,
        Leon Romanovsky <leonro@...lanox.com>,
        RDMA mailing list <linux-rdma@...r.kernel.org>,
        Or Gerlitz <ogerlitz@...lanox.com>,
        Yamin Friedman <yaminf@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>,
        linux-netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH rdma-next 2/3] RDMA/mlx5: Add capability for max sge to
 get optimized performance

On Sun, Oct 06, 2019 at 06:59:54PM +0300, 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 */
> +	u32			max_sgl_rd;

This either needs to go into what current is patch 3 or an entirely
separate one.