netdev - Re: [PATCH mlx5-next 09/16] net/mlx5: Expose IP-in-IP TX and RX capability bits

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Date:   Sat, 21 Nov 2020 15:58:52 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Saeed Mahameed <saeedm@...dia.com>
Cc:     Leon Romanovsky <leonro@...lanox.com>, <netdev@...r.kernel.org>,
        <linux-rdma@...r.kernel.org>, Aya Levin <ayal@...dia.com>,
        Moshe Shemesh <moshe@...dia.com>
Subject: Re: [PATCH mlx5-next 09/16] net/mlx5: Expose IP-in-IP TX and RX
 capability bits

On Fri, 20 Nov 2020 15:03:32 -0800 Saeed Mahameed wrote:
> From: Aya Levin <ayal@...dia.com>
> 
> Expose FW indication that it supports stateless offloads for IP over IP
> tunneled packets per direction. In some HW like ConnectX-4 IP-in-IP
> support is not symmetric, it supports steering on the inner header but
> it doesn't TX-Checksum and TSO. Add IP-in-IP capability per direction to
> cover this case as well.

What's the use for the rx capability in Linux? We don't have an API to
configure that AFAIK.