netdev - Re: [PATCH net-next v2 1/9] doc: net: add backplane documentation

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Message-ID: <20200425102849.GX25745@shell.armlinux.org.uk>
Date:   Sat, 25 Apr 2020 11:28:49 +0100
From:   Russell King - ARM Linux admin <linux@...linux.org.uk>
To:     Florinel Iordache <florinel.iordache@....com>
Cc:     davem@...emloft.net, netdev@...r.kernel.org, andrew@...n.ch,
        f.fainelli@...il.com, hkallweit1@...il.com,
        devicetree@...r.kernel.org, linux-doc@...r.kernel.org,
        robh+dt@...nel.org, mark.rutland@....com, kuba@...nel.org,
        corbet@....net, shawnguo@...nel.org, leoyang.li@....com,
        madalin.bucur@....nxp.com, ioana.ciornei@....com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next v2 1/9] doc: net: add backplane documentation

On Fri, Apr 24, 2020 at 03:46:23PM +0300, Florinel Iordache wrote:
> +Supported platforms
> +===================
> +
> +Ethernet Backplane is enabled on the following platforms:
> +
> +LS1046A
> +LS1088A
> +LS2088A
> +LX2160A
> \ No newline at end of file

Please fix.

> diff --git a/Documentation/networking/phy.rst b/Documentation/networking/phy.rst
> index 2561060..1f1ebf2 100644
> --- a/Documentation/networking/phy.rst
> +++ b/Documentation/networking/phy.rst
> @@ -279,13 +279,22 @@ Some of the interface modes are described below:
>      XFI and SFI are not PHY interface types in their own right.
>  
>  ``PHY_INTERFACE_MODE_10GKR``
> -    This is the IEEE 802.3 Clause 49 defined 10GBASE-R with Clause 73
> -    autonegotiation. Please refer to the IEEE standard for further
> -    information.
> +    This is 10G Ethernet Backplane over single lane specified in
> +    IEEE802.3ap-2007 Amendment 4: Ethernet Operation over Electrical
> +    Backplanes which includes the new Clause 69 through Clause 74
> +    including autonegotiation. 10GKR uses the same physical layer
> +    encoding as 10GBASE-R defined in IEEE802.3 Clause 49. Please refer
> +    to the IEEE standard for further information.
>  
>      Note: due to legacy usage, some 10GBASE-R usage incorrectly makes
>      use of this definition.
>  
> +``PHY_INTERFACE_MODE_40GKR4``
> +    This is 40G Ethernet Backplane over 4-lanes using the same main
> +    standard used for Ethernet Operation over Electrical Backplanes
> +    and additional specifications that define support for Ethernet
> +    Backplane over 4-lanes specified in IEEE802.3ba-2010.
> +
>  Pause frames / flow control
>  ===========================
>  

This ought to be in patch 3.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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