netdev - Re: [RFC PATCH 1/6] docs: networking: add the document for DFL Ether Group driver

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Message-ID: <20201102144606.GI1042051@lunn.ch>
Date:   Mon, 2 Nov 2020 15:46:06 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Xu Yilun <yilun.xu@...el.com>
Cc:     jesse.brandeburg@...el.com, anthony.l.nguyen@...el.com,
        davem@...emloft.net, kuba@...nel.org, mdf@...nel.org,
        lee.jones@...aro.org, linux-kernel@...r.kernel.org,
        linux-fpga@...r.kernel.org, netdev@...r.kernel.org,
        trix@...hat.com, lgoncalv@...hat.com, hao.wu@...el.com
Subject: Re: [RFC PATCH 1/6] docs: networking: add the document for DFL Ether
 Group driver

> I did some investigation and now I have some details.
> The term 'PHY' described in Ether Group Spec should be the PCS + PMA, a figure
> below for one configuration:
> 
>  +------------------------+          +-----------------+
>  | Host Side Ether Group  |          |      XL710      |
>  |                        |          |                 |
>  | +--------------------+ |          |                 |
>  | | 40G Ether IP       | |          |                 |
>  | |                    | |          |                 |
>  | |       +---------+  | |  XLAUI   |                 |
>  | | MAC - |PCS - PMA|  | |----------| PMA - PCS - MAC |
>  | |       +---------+  | |          |                 |
>  +-+--------------------+-+          +-----------------+

Thanks, that makes a lot more sense.

	Andrew