netdev - Re: [PATCH RFC net-next 1/5] net: dsa: mt7530: Convert to PHYLINK API

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Message-ID: <20190625211300.4hywbhyt6nj5pmvt@shell.armlinux.org.uk>
Date:   Tue, 25 Jun 2019 22:13:00 +0100
From:   Russell King - ARM Linux admin <linux@...linux.org.uk>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     Daniel Santos <daniel.santos@...ox.com>,
        René van Dorst <opensource@...rst.com>,
        sean.wang@...iatek.com, f.fainelli@...il.com, davem@...emloft.net,
        matthias.bgg@...il.com, vivien.didelot@...il.com,
        frank-w@...lic-files.de, netdev@...r.kernel.org,
        linux-mediatek@...ts.infradead.org, linux-mips@...r.kernel.org
Subject: Re: [PATCH RFC net-next 1/5] net: dsa: mt7530: Convert to PHYLINK API

On Tue, Jun 25, 2019 at 09:02:46PM +0200, Andrew Lunn wrote:
> > But will there still be a mechanism to ignore link partner's advertising
> > and force these parameters?
> 
> From man 1 ethtool:
> 
>        -a --show-pause
>               Queries the specified Ethernet device for pause parameter information.
> 
>        -A --pause
>               Changes the pause parameters of the specified Ethernet device.
> 
>            autoneg on|off
>                   Specifies whether pause autonegotiation should be enabled.
> 
>            rx on|off
>                   Specifies whether RX pause should be enabled.
> 
>            tx on|off
>                   Specifies whether TX pause should be enabled.
> 
> You need to check the driver to see if it actually implements this
> ethtool call, but that is how it should be configured.

Note that phylink provides this call, and provided mac_config() is
correctly implemented, will result in the pause mode parameters in
the MAC being correctly set.

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