netdev - RE: [PATCH v5 net-next 0/4] Add ethtool interface for RClocks

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Date:   Mon, 13 Dec 2021 08:53:36 +0000
From:   "Machnikowski, Maciej" <maciej.machnikowski@...el.com>
To:     Jakub Kicinski <kuba@...nel.org>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
        "Kubalewski, Arkadiusz" <arkadiusz.kubalewski@...el.com>,
        "richardcochran@...il.com" <richardcochran@...il.com>,
        "Byagowi, Ahmad" <abyagowi@...com>,
        "Nguyen, Anthony L" <anthony.l.nguyen@...el.com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "linux-kselftest@...r.kernel.org" <linux-kselftest@...r.kernel.org>,
        "idosch@...sch.org" <idosch@...sch.org>,
        "mkubecek@...e.cz" <mkubecek@...e.cz>,
        "saeed@...nel.org" <saeed@...nel.org>,
        "michael.chan@...adcom.com" <michael.chan@...adcom.com>,
        "petrm@...dia.com" <petrm@...dia.com>,
        Vadim Fedorenko <vfedorenko@...ek.ru>
Subject: RE: [PATCH v5 net-next 0/4] Add ethtool interface for RClocks



> -----Original Message-----
> From: Jakub Kicinski <kuba@...nel.org>
> Sent: Friday, December 10, 2021 5:17 PM
> To: Machnikowski, Maciej <maciej.machnikowski@...el.com>
> Cc: netdev@...r.kernel.org; intel-wired-lan@...ts.osuosl.org; Kubalewski,
> Arkadiusz <arkadiusz.kubalewski@...el.com>; richardcochran@...il.com;
> Byagowi, Ahmad <abyagowi@...com>; Nguyen, Anthony L
> <anthony.l.nguyen@...el.com>; davem@...emloft.net; linux-
> kselftest@...r.kernel.org; idosch@...sch.org; mkubecek@...e.cz;
> saeed@...nel.org; michael.chan@...adcom.com; petrm@...dia.com;
> Vadim Fedorenko <vfedorenko@...ek.ru>
> Subject: Re: [PATCH v5 net-next 0/4] Add ethtool interface for RClocks
> 
> On Fri, 10 Dec 2021 14:45:46 +0100 Maciej Machnikowski wrote:
> > Synchronous Ethernet networks use a physical layer clock to syntonize
> > the frequency across different network elements.
> >
> > Basic SyncE node defined in the ITU-T G.8264 consist of an Ethernet
> > Equipment Clock (EEC) and have the ability to synchronize to reference
> > frequency sources.
> >
> > This patch series is a prerequisite for EEC object and adds ability
> > to enable recovered clocks in the physical layer of the netdev object.
> > Recovered clocks can be used as one of the reference signal by the EEC.
> >
> > Further work is required to add the DPLL subsystem, link it to the
> > netdev object and create API to read the EEC DPLL state.
> 
> You missed CCing Vadim. I guess Ccing the right people may be right up
> there with naming things as the hardest things in SW development..
> 
> Anyway, Vadim - do you have an ETA on the first chunk of the PLL work?

Sounds about right :) thanks for adding Vadim!