netdev - Re: [net-next RFC PATCH v2 3/3] net: phy: Add Airoha AN8855 Internal Switch Gigabit PHY

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <a8f9a6ba-b33f-4f78-97c4-757a15895104@lunn.ch>
Date: Fri, 25 Oct 2024 14:56:05 +0200
From: Andrew Lunn <andrew@...n.ch>
To: Christian Marangi <ansuelsmth@...il.com>
Cc: Florian Fainelli <f.fainelli@...il.com>,
	Vladimir Oltean <olteanv@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Russell King <linux@...linux.org.uk>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org, netdev@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [net-next RFC PATCH v2 3/3] net: phy: Add Airoha AN8855 Internal
 Switch Gigabit PHY

On Fri, Oct 25, 2024 at 12:59:54PM +0200, Christian Marangi wrote:
> On Wed, Oct 23, 2024 at 06:53:14PM +0200, Andrew Lunn wrote:
> > > +	/* Enable Asymmetric Pause Capability */
> > > +	ret = phy_set_bits(phydev, MII_ADVERTISE, ADVERTISE_PAUSE_ASYM);
> > > +	if (ret)
> > > +		return ret;
> > 
> > The PHY driver alone does not decide this. The MAC driver needs to
> > indicate it supports asym pause by calling phy_supports_asym_pause().
> >
> 
> Sorry for the stupid question, I couldn't find this OPs. Any hit how to
> handle this?

For phylink, set MAC_ASYM_PAUSE | MAC_SYM_PAUSE in the capabilities in
phylink_config.

For phylib, call phy_support_asym_pause(phydev) after connecting to the PHY.

	Andrew