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

From: "Kubalewski, Arkadiusz" <arkadiusz.kubalewski@intel.com>
To: Vadim Fedorenko <vfedorenko@novek.ru>,
	"Machnikowski, Maciej" <maciej.machnikowski@intel.com>,
	Jakub Kicinski <kuba@kernel.org>
Cc: "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	"intel-wired-lan@lists.osuosl.org"
	<intel-wired-lan@lists.osuosl.org>,
	"richardcochran@gmail.com" <richardcochran@gmail.com>,
	"Byagowi, Ahmad" <abyagowi@fb.com>,
	"Nguyen, Anthony L" <anthony.l.nguyen@intel.com>,
	"davem@davemloft.net" <davem@davemloft.net>,
	"linux-kselftest@vger.kernel.org"
	<linux-kselftest@vger.kernel.org>,
	"idosch@idosch.org" <idosch@idosch.org>,
	"mkubecek@suse.cz" <mkubecek@suse.cz>,
	"saeed@kernel.org" <saeed@kernel.org>,
	"michael.chan@broadcom.com" <michael.chan@broadcom.com>,
	"petrm@nvidia.com" <petrm@nvidia.com>
Subject: RE: [PATCH v5 net-next 0/4] Add ethtool interface for RClocks
Date: Wed, 19 Jan 2022 22:33:08 +0000	[thread overview]
Message-ID: <DM6PR11MB46578F4AEA8EF56A880E542B9B599@DM6PR11MB4657.namprd11.prod.outlook.com> (raw)
In-Reply-To: <DM6PR11MB465758ECC87273A56CA2826F9B789@DM6PR11MB4657.namprd11.prod.outlook.com>

>>On 15.12.2021 12:14, Kubalewski, Arkadiusz wrote:
>>>> -----Original Message-----
>>>> From: Machnikowski, Maciej <maciej.machnikowski@intel.com>
>>>> Sent: poniedziałek, 13 grudnia 2021 09:54
>>>> To: Jakub Kicinski <kuba@kernel.org>
>>>> Cc: netdev@vger.kernel.org; intel-wired-lan@lists.osuosl.org; 
>>>> Kubalewski, Arkadiusz <arkadiusz.kubalewski@intel.com>; 
>>>> richardcochran@gmail.com; Byagowi, Ahmad <abyagowi@fb.com>; Nguyen, 
>>>> Anthony L <anthony.l.nguyen@intel.com>; davem@davemloft.net; 
>>>> linux-kselftest@vger.kernel.org; idosch@idosch.org; 
>>>> mkubecek@suse.cz; saeed@kernel.org; michael.chan@broadcom.com; 
>>>> petrm@nvidia.com; Vadim Fedorenko <vfedorenko@novek.ru>
>>>> Subject: RE: [PATCH v5 net-next 0/4] Add ethtool interface for 
>>>> RClocks
>>>>
>>>>> -----Original Message-----
>>>>> From: Jakub Kicinski <kuba@kernel.org>
>>>>> Sent: Friday, December 10, 2021 5:17 PM
>>>>> To: Machnikowski, Maciej <maciej.machnikowski@intel.com>
>>>>> Cc: netdev@vger.kernel.org; intel-wired-lan@lists.osuosl.org; 
>>>>> Kubalewski, Arkadiusz <arkadiusz.kubalewski@intel.com>; 
>>>>> richardcochran@gmail.com; Byagowi, Ahmad <abyagowi@fb.com>; Nguyen, 
>>>>> Anthony L <anthony.l.nguyen@intel.com>; davem@davemloft.net; linux- 
>>>>> kselftest@vger.kernel.org; idosch@idosch.org; mkubecek@suse.cz; 
>>>>> saeed@kernel.org; michael.chan@broadcom.com; petrm@nvidia.com; 
>>>>> Vadim Fedorenko <vfedorenko@novek.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!
>>>>
>>> 
>>> Good day Vadim,
>>> 
>>> Can we help on the new PLL interfaces?
>>> I can start some works related to that, although would need a 
>>> guidance from the expert.
>>> Where to place it?
>>> What in-kernel interfaces to use?
>>> Any other high level tips that could be useful?
>>> Or if you already started some work, could you please share some 
>>> information?
>>> 
>>Hi!
>>
>>I'm going to publish RFC till the end of the week and we will be able 
>>to continue discussion via this mailing list. I think that netlink is a 
>>good option for in-kernel interface and is easy to implement.
>>
>
>Oh, that sounds great!
>Thank you!
>

Good day Vadim,

Hope you are well!
I have been trying to find a new RFC on mailing list, but could not find it.
I guess, it was not submitted yet?
Could you please share your current schedule for this task?
Or maybe we could help somehow?