Re: [Linuxptp-users] How to properly use twoStepFlag=0

[Keller, J. E <jac...@in...>]

> -----Original Message-----
> From: Richard Cochran [mailto:ric...@gm...]
> Sent: Sunday, January 13, 2019 12:57 PM
> To: Keller, Jacob E <jac...@in...>
> Cc: Timo Korthals <tko...@ci...>; linuxptp-
> us...@li...
> Subject: Re: [Linuxptp-users] How to properly use twoStepFlag=0
> 
> On Fri, Jan 11, 2019 at 11:09:32PM +0000, Keller, Jacob E wrote:
> > > The two other chips supporting ONESTEP_SYNC are the TI dp83640 and the
> > > Microchip LAN7430/1.
> > > However, I only found chip samples but no buyable networkcards having
> > > these chips.
> > > Does someone know network cards with these chips or at least other
> > > network cards with HWTSTAMP_TX_ONESTEP_SYNC support?
> >
> > Unfortunately I'm not aware of any that does. :( I thought maybe i210 hardware had
> support, but no one has ever implemented it in the device driver...
> 
> The i210 does *not* support one-step, but IIRC there is some
> misleading text that suggests this.
> 

The data sheet indicates that it does. I haven't tried it myself, so I can't confirm if or why the data sheet is wrong.

> To my knowledge there is no off-the-shelf one-step card on the market.
> 
> Sorry,
> Richard

Yep, that's as much as I know currently as well.

Thanks,
Jake