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From: Andrew Lunn <andrew@lunn.ch>
To: Moritz Fischer <moritz.fischer@ettus.com>
Cc: Moritz Fischer <mdf@kernel.org>,
	netdev@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, davem@davemloft.net,
	mark.rutland@arm.com, robh+dt@kernel.org
Subject: Re: [PATCH 2/2] net: ethernet: nixge: Add support for National Instruments XGE netdev
Date: Fri, 14 Jul 2017 03:34:35 +0200	[thread overview]
Message-ID: <20170714013435.GA9065@lunn.ch> (raw)
In-Reply-To: <20170714003111.GA13512@tyrael.ni.corp.natinst.com>

> > > +	/* not sure if this is the correct way of dealing with this ... */
> > > +	ndev->phydev->supported &= ~(SUPPORTED_Autoneg);
> > > +	ndev->phydev->advertising = ndev->phydev->supported;
> > > +	ndev->phydev->autoneg = AUTONEG_DISABLE;
> > 
> > What are you trying to achieve?
> 
> Basically can't do Autoneg, I'll need to take a closer look.

Hi Moritz

What i actually think you mean, is it can only do 1Gbps. So you could
autoneg, but only advertise 1Gbps. Look at masking out
PHY_10BT_FEATURES and PHY_100BT_FEATURES.

Take a look at:

http://elixir.free-electrons.com/linux/latest/source/drivers/net/ethernet/renesas/ravb_main.c#L1045

It might actually make sense to add a phy_set_min_speed(), a mirror to
phy_set_max_speed().

	Andrew

  reply	other threads:[~2017-07-14  1:34 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-13 21:21 [PATCH 1/2] dt-bindings: net: Add bindings for National Instruments XGE netdev Moritz Fischer
2017-07-13 21:21 ` [PATCH 2/2] net: ethernet: nixge: Add support " Moritz Fischer
     [not found]   ` <1499980909-11702-2-git-send-email-mdf-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2017-07-13 22:36     ` Andrew Lunn
     [not found]       ` <20170713223636.GF3120-g2DYL2Zd6BY@public.gmane.org>
2017-07-14  0:31         ` Moritz Fischer
2017-07-14  1:34           ` Andrew Lunn [this message]
     [not found]             ` <20170714013435.GA9065-g2DYL2Zd6BY@public.gmane.org>
2017-07-14  3:36               ` Moritz Fischer
2017-07-15 14:36     ` kbuild test robot
2017-07-14  5:54   ` kbuild test robot
2017-07-14  0:33 ` [PATCH 1/2] dt-bindings: net: Add bindings " YUAN Linyu
2017-07-14  0:36   ` Moritz Fischer

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