Re: [PATCH] net: ethernet: mvneta: add support for 2.5G DRSGMII mode

["Jan Lübbe" <jlu-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>]

Hi Andrew,

On Mo, 2017-01-23 at 19:18 +0100, Andrew Lunn wrote:
> On Mon, Jan 23, 2017 at 03:22:06PM +0100, Jan Luebbe wrote:
> > The Marvell MVNETA Ethernet controller supports a 2.5 Gbps SGMII mode
> > called DRSGMII.
> > 
> > This patch adds a corresponding phy-mode string 'drsgmii' and parses it
> > from DT. The MVNETA then configures the SERDES protocol value
> > accordingly.
>
> So this sets the PHY to 2.5Gbps. What about the MAC? Currently,
> mvneta_adjust_link() knows about SPEED_1000 and SPEED_100. Does it now
> need to know about SPEED_2500? mvneta_ethtool_set_link_ksettings()?

It works without any other changes. ;)

Initially I looked at adding a SPEED_2500, but I wasn't sure which code
would need to handle the new value. Would the path from the ethtool
ioctl to the driver be enough (mvneta_ethtool_set_link_ksettings() as
you said)?

Regards,
Jan
-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html