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Date: Wed, 17 Apr 2024 16:11:56 +0300
From: Serge Semin <fancer.lancer@gmail.com>
To: Romain Gantois <romain.gantois@bootlin.com>
Cc: "David S. Miller" <davem@davemloft.net>, 
	Eric Dumazet <edumazet@google.com>, Jakub Kicinski <kuba@kernel.org>, 
	Paolo Abeni <pabeni@redhat.com>, Rob Herring <robh@kernel.org>, 
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, Conor Dooley <conor+dt@kernel.org>, 
	Geert Uytterhoeven <geert+renesas@glider.be>, Magnus Damm <magnus.damm@gmail.com>, 
	Alexandre Torgue <alexandre.torgue@foss.st.com>, Jose Abreu <joabreu@synopsys.com>, 
	Maxime Coquelin <mcoquelin.stm32@gmail.com>, Russell King <linux@armlinux.org.uk>, 
	=?utf-8?B?Q2zDqW1lbnQgTMOpZ2Vy?= <clement.leger@bootlin.com>, Thomas Petazzoni <thomas.petazzoni@bootlin.com>, 
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	linux-arm-kernel@lists.infradead.org, "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>, 
	Maxime Chevallier <maxime.chevallier@bootlin.com>
Subject: Re: [PATCH net-next v3 2/5] net: stmmac: introduce pcs_init/pcs_exit
 stmmac operations
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References: <20240415-rzn1-gmac1-v3-0-ab12f2c4401d@bootlin.com>
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In-Reply-To: <77722ced-4956-0e70-9492-c7b2e8557253@bootlin.com>

On Wed, Apr 17, 2024 at 11:30:09AM +0200, Romain Gantois wrote:
> Hi Serge,
> 
> On Tue, 16 Apr 2024, Serge Semin wrote:
> 
> > I am currently working on my Memory-mapped DW XPCS patchset cooking:
> > https://lore.kernel.org/netdev/20231205103559.9605-1-fancer.lancer@gmail.com/
> > The changes in this series seems to intersect to what is/will be
> > introduced in my patchset. In particular as before I am going to
> > use the "pcs-handle" property for getting the XPCS node. If so what
> > about collecting PCS-related things in a single place. Like this:
> > 
> > int stmmac_xpcs_setup(struct net_device *ndev)
> > {
> > 	...
> > 
> > 	if (priv->plat->pcs_init) {
> > 		return priv->plat->pcs_init(priv); /* Romain' part */
> >	} else if (fwnode_property_present(priv->plat->port_node, "pcs-handle")) {
> > 		/* My DW XPCS part */
> > 	} else if (priv->plat->mdio_bus_data && priv->plat->mdio_bus_data->has_xpcs) {
> > 		/* Currently implemented procedure */
> > 	}
> > 
> > 	...
> > }
> 
> That seems like a good idea to me, although those setup functions would have to 
> be renamed to stmmac_pcs_setup/exit.

Why not, seeing they will be responsible for any PCS attached to the
MAC.

-Serge(y)

> 
> Thanks,
> 
> -- 
> Romain Gantois, Bootlin
> Embedded Linux and Kernel engineering
> https://bootlin.com