Re: [Linuxptp-users] Issues with linuxptp and Intel 82574

[Allan, B. W <bru...@in...>]

IIRC, the out-of-tree igb driver (the driver supporting 82576) also supports the older timesync API in addition to the newer PTP Hardware Clock subsystem; the out-of-tree e1000e driver does not support the older API, just the newer one.

> -----Original Message-----
> From: Fabrizio Giordano [mailto:Fab...@ri...]
> Sent: Monday, October 21, 2013 10:13 AM
> To: Richard Cochran
> Cc: lin...@li...
> Subject: Re: [Linuxptp-users] Issues with linuxptp and Intel 82574
> 
> Then why it works just fine with an Intel 82576 (and the *same* kernel)?
> 
> Fabrizio
> 
> -----Original Message-----
> From: Richard Cochran [mailto:ric...@gm...]
> Sent: Monday, October 21, 2013 10:11
> To: Fabrizio Giordano
> Cc: Vick, Matthew; Ledda William EXT; lin...@li...
> Subject: Re: [Linuxptp-users] Issues with linuxptp and Intel 82574
> 
> On Mon, Oct 21, 2013 at 04:51:58PM +0000, Fabrizio Giordano wrote:
> >
> > The kernel we use is a custom recompiled version of 2.6.32-358.18.1.el6.
> 
> That explains it. The PTP Hardware Clock subsystem first appeared in
> v3.0 of the Linux kernel.
> 
> Sorry,
> Richard
> 
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