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Date: Thu, 6 Jun 2019 08:50:16 +0000
From: Shalom Toledo <shalomt@...lanox.com>
To: Richard Cochran <richardcochran@...il.com>
CC: Ido Schimmel <idosch@...sch.org>,
"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
"davem@...emloft.net" <davem@...emloft.net>,
Jiri Pirko <jiri@...lanox.com>,
Petr Machata <petrm@...lanox.com>, mlxsw <mlxsw@...lanox.com>,
Ido Schimmel <idosch@...lanox.com>
Subject: Re: [PATCH net-next 7/9] mlxsw: spectrum_ptp: Add implementation for
physical hardware clock operations
On 06/06/2019 5:43, Richard Cochran wrote:
> On Wed, Jun 05, 2019 at 07:28:38PM +0000, Shalom Toledo wrote:
>> So, there is an HW machine which responsible for adding UTC timestamp on
>> R-SPAN mirror packets and there is no connection to the HW free running
>> counter.
>
> If there is no connection, then the frequency adjustments to the HW
> clock will not work as expected.
I mean that these are two different peaces of HW with different control
interfaces.
>
> Perhaps the free running counter and the HW clock share the same clock
> source?
Yes, of course.
>
> Thanks,
> Richard
>
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