netdev - Re: [EXT] Re: [PATCH net-next 5/6] arm64: dts: marvell: mcbin: enable the fourth network interface

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Date:   Mon, 1 Jan 2018 13:25:20 +0000
From:   Russell King - ARM Linux <linux@...linux.org.uk>
To:     Stefan Chulski <stefanc@...vell.com>
Cc:     Marcin Wojtas <mw@...ihalf.com>,
        Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Yan Markman <ymarkman@...vell.com>,
        Jason Cooper <jason@...edaemon.net>,
        netdev <netdev@...r.kernel.org>,
        Antoine Tenart <antoine.tenart@...e-electrons.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kishon@...com" <kishon@...com>, Nadav Haklai <nadavh@...vell.com>,
        Miquèl Raynal 
        <miquel.raynal@...e-electrons.com>,
        Gregory Clément 
        <gregory.clement@...e-electrons.com>,
        "David S. Miller" <davem@...emloft.net>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
Subject: Re: [EXT] Re: [PATCH net-next 5/6] arm64: dts: marvell: mcbin:
 enable the fourth network interface

On Mon, Jan 01, 2018 at 10:35:25AM +0000, Stefan Chulski wrote:
> 
> > -----Original Message-----
> > Hi Russell,
> > 
> > Indeed. RGMII MAC behaves same way, although it shouldn't be named as 'in-
> > band' to be on par with the specifications. Anyway - this one is rather a stub for
> > being able to work with ACPI, so once the MDIO bus works there, this will be
> > out of any concerns.
> 
> Hi Marcin,
> 
> This is correct.
> "in-band" supported only for SGMII mode.
> IRQ link interrupt depend on "in-band"' auto negation only if "in-band"' enabled.
> But IRQ link interrupt could be triggered with "in-band", "out-band" or with specific fixed speed/duplex/flow_contol.

Hi Stefan,

How does this work in RGMII mode - is this handled by the PP2 polling
the PHY to get the speed, duplex and flow control settings?

Thanks.

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