netdev - Re: [RFC 02/12] ravb: Add rx_max_buf_size to struct ravb_hw

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Date:   Tue, 5 Oct 2021 15:21:49 +0300
From:   Sergey Shtylyov <s.shtylyov@....ru>
To:     Biju Das <biju.das.jz@...renesas.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
CC:     Sergei Shtylyov <sergei.shtylyov@...il.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Sergey Shtylyov <s.shtylyov@...russia.ru>,
        "Adam Ford" <aford173@...il.com>, Andrew Lunn <andrew@...n.ch>,
        Yuusuke Ashizuka <ashiduka@...itsu.com>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        <netdev@...r.kernel.org>, <linux-renesas-soc@...r.kernel.org>,
        Chris Paterson <Chris.Paterson2@...esas.com>,
        Biju Das <biju.das@...renesas.com>,
        "Prabhakar Mahadev Lad" <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: Re: [RFC 02/12] ravb: Add rx_max_buf_size to struct ravb_hw_info

On 10/5/21 2:06 PM, Biju Das wrote:

> R-Car AVB-DMAC has maximum 2K size on RX buffer, whereas on RZ/G2L
> it is 8K. We need to allow for changing the MTU within the limit
> of the maximum size of a descriptor.
> 
> Add a rx_max_buf_size variable to struct ravb_hw_info to handle
> this difference.
> 
> Signed-off-by: Biju Das <biju.das.jz@...renesas.com>
> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>

Reviewed-by: Sergey Shtylyov <s.shtylyov@....ru>

[...]

MBR, Sergey