miquel.ray...@bootlin.com; Nadav Haklai
> > ; Yan Markman ;
> > m...@semihalf.com; linux-arm-ker...@lists.infradead.org
> > Subject: Re: [EXT] Re: [PATCH net-next 02/10] net: phy: phylink: allow 10GKR
> > interface to use in-band negotiation
> >
> > > > If they don
> This would definitively work for SFP connectors with a PHY, but would
> that work when using direct attached cable?
Then you need to know what is on the other end of the cable? A switch?
A PHY? and SFP module?
Andrew
> phylink pool SFP loss signal to determine link up/down?
Yes, the SFP driver will act on a GPIO for link up/down, and a GPIO
for module prescience. When it detects an SFP module hotplugged, it
reads the EEPROM to find out what sort of module it is, and what mode
should be used between the MAC and
ct: Re: [EXT] Re: [PATCH net-next 02/10] net: phy: phylink: allow 10GKR
> interface to use in-band negotiation
>
> > > If they don't have PHYs, how are the connected to the outside world?
> > >
> > >Andrew
> >
> > By external SFP or direct attac
On Mon, Mar 19, 2018 at 02:08:23PM +0100, Andrew Lunn wrote:
> > > If they don't have PHYs, how are the connected to the outside world?
> >
> > By external SFP or direct attached cable.
>
> Maybe i'm missing something, but don't you just need to add an SFP
> device in the device tree. The SFP cod
> > If they don't have PHYs, how are the connected to the outside world?
> >
> >Andrew
>
> By external SFP or direct attached cable.
Maybe i'm missing something, but don't you just need to add an SFP
device in the device tree. The SFP code and PHYLINK will work
together, query what the SFP m
@bootlin.com; maxime.chevall...@bootlin.com;
> miquel.ray...@bootlin.com; Nadav Haklai ; Yan Markman
> ; m...@semihalf.com;
> linux-arm-ker...@lists.infradead.org
> Subject: RE: [EXT] Re: [PATCH net-next 02/10] net: phy: phylink: allow 10GKR
> interface to use in-band negotiation
>
> -Original Message-
> From: Andrew Lunn [mailto:and...@lunn.ch]
> Sent: Monday, March 19, 2018 3:00 PM
> To: Antoine Tenart
> Cc: Russell King - ARM Linux ;
> da...@davemloft.net; kis...@ti.com; gregory.clem...@bootlin.com;
> ja...@lakedaemon.net; sebastian.hesselba...@gmail.com;
> net.
radead.org
Subject: RE: [EXT] Re: [PATCH net-next 02/10] net: phy: phylink: allow 10GKR
interface to use in-band negotiation
> > > There is no inband negotiation like there is with 802.3z or SGMII,
> > > so this makes no sense.
> >
> > Oh, that's what I fe
> > > There is no inband negotiation like there is with 802.3z or SGMII,
> > > so this makes no sense.
> >
> > Oh, that's what I feared. I read some docs but probably will need more
> > :)
> >
> > Anyway, the reason to use in-band negotiation was also to avoid using
> > fixed-link. It would work bu
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