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From: "Y.b. Lu" <yangbo.lu@nxp.com>
To: Richard Cochran <richardcochran@gmail.com>
Cc: "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-kselftest@vger.kernel.org"
	<linux-kselftest@vger.kernel.org>,
	"mptcp@lists.linux.dev" <mptcp@lists.linux.dev>,
	"David S . Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	Mat Martineau <mathew.j.martineau@linux.intel.com>,
	Matthieu Baerts <matthieu.baerts@tessares.net>,
	Shuah Khan <shuah@kernel.org>, Michal Kubecek <mkubecek@suse.cz>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Andrew Lunn <andrew@lunn.ch>, Rui Sousa <rui.sousa@nxp.com>,
	Sebastien Laveze <sebastien.laveze@nxp.com>
Subject: RE: [net-next, v3, 02/10] ptp: support ptp physical/virtual clocks conversion
Date: Tue, 22 Jun 2021 10:18:53 +0000	[thread overview]
Message-ID: <DB7PR04MB5017AF07C3264A10FD7447C1F8099@DB7PR04MB5017.eurprd04.prod.outlook.com> (raw)
In-Reply-To: <20210617174247.GB4770@localhost>

Hi Richard,

> -----Original Message-----
> From: Richard Cochran <richardcochran@gmail.com>
> Sent: 2021年6月18日 1:43
> To: Y.b. Lu <yangbo.lu@nxp.com>
> Cc: netdev@vger.kernel.org; linux-kernel@vger.kernel.org;
> linux-kselftest@vger.kernel.org; mptcp@lists.linux.dev; David S . Miller
> <davem@davemloft.net>; Jakub Kicinski <kuba@kernel.org>; Mat Martineau
> <mathew.j.martineau@linux.intel.com>; Matthieu Baerts
> <matthieu.baerts@tessares.net>; Shuah Khan <shuah@kernel.org>; Michal
> Kubecek <mkubecek@suse.cz>; Florian Fainelli <f.fainelli@gmail.com>;
> Andrew Lunn <andrew@lunn.ch>; Rui Sousa <rui.sousa@nxp.com>; Sebastien
> Laveze <sebastien.laveze@nxp.com>
> Subject: Re: [net-next, v3, 02/10] ptp: support ptp physical/virtual clocks
> conversion
> 
> On Tue, Jun 15, 2021 at 05:45:09PM +0800, Yangbo Lu wrote:
> 
> > diff --git a/Documentation/ABI/testing/sysfs-ptp
> b/Documentation/ABI/testing/sysfs-ptp
> > index 2363ad810ddb..2ef11b775f47 100644
> > --- a/Documentation/ABI/testing/sysfs-ptp
> > +++ b/Documentation/ABI/testing/sysfs-ptp
> > @@ -61,6 +61,19 @@ Description:
> >  		This file contains the number of programmable pins
> >  		offered by the PTP hardware clock.
> >
> > +What:		/sys/class/ptp/ptpN/n_vclocks
> > +Date:		May 2021
> > +Contact:	Yangbo Lu <yangbo.lu@nxp.com>
> > +Description:
> > +		This file contains the ptp virtual clocks number in use,
> > +		based on current ptp physical clock. In default, the
> > +		value is 0 meaning only ptp physical clock is in use.
> > +		Setting the value can create corresponding number of ptp
> > +		virtual clocks to use. But current ptp physical clock is
> > +		guaranteed to stay free running. Setting the value back
> > +		to 0 can delete ptp virtual clocks and back use ptp
> > +		physical clock again.
> 
> The native speaker in me suggests:
> 
> 		This file contains the number of virtual PTP clocks in
> 		use.  By default, the value is 0 meaning that only the
> 		physical clock is in use.  Setting the value creates
> 		the corresponding number of virtual clocks and causes
> 		the physical clock to become free running.  Setting the
> 		value back to 0 deletes the virtual clocks and
> 		switches the physical clock back to normal, adjustable
> 		operation.

Thank you! Will update. That's better than mine.

> 
> Thanks,
> Richard


  reply	other threads:[~2021-06-22 10:18 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-15  9:45 [net-next, v3, 00/10] ptp: support virtual clocks and timestamping Yangbo Lu
2021-06-15  9:45 ` [net-next, v3, 01/10] ptp: add ptp virtual clock driver framework Yangbo Lu
2021-06-17 17:32   ` Richard Cochran
2021-06-22 10:17     ` Y.b. Lu
2021-06-15  9:45 ` [net-next, v3, 02/10] ptp: support ptp physical/virtual clocks conversion Yangbo Lu
2021-06-17 17:42   ` Richard Cochran
2021-06-22 10:18     ` Y.b. Lu [this message]
2021-06-17 18:27   ` Richard Cochran
2021-06-22 10:35     ` Y.b. Lu
2021-06-25 11:09       ` Y.b. Lu
2021-06-19  4:06   ` Richard Cochran
2021-06-22 10:39     ` Y.b. Lu
2021-06-15  9:45 ` [net-next, v3, 03/10] ptp: track available ptp vclocks information Yangbo Lu
2021-06-15  9:45 ` [net-next, v3, 04/10] ptp: add kernel API ptp_get_vclocks_index() Yangbo Lu
2021-06-15  9:45 ` [net-next, v3, 05/10] ethtool: add a new command for getting PHC virtual clocks Yangbo Lu
2021-06-15 19:49   ` Jakub Kicinski
2021-06-22 10:10     ` Y.b. Lu
2021-06-15 23:24   ` Michal Kubecek
2021-06-22 10:10     ` Y.b. Lu
2021-06-15  9:45 ` [net-next, v3, 06/10] ptp: add kernel API ptp_convert_timestamp() Yangbo Lu
2021-06-15  9:45 ` [net-next, v3, 07/10] net: sock: extend SO_TIMESTAMPING for PHC binding Yangbo Lu
2021-06-16  1:00   ` Mat Martineau
2021-06-22 10:14     ` Y.b. Lu
2021-06-16 10:27   ` kernel test robot
2021-06-16 10:39   ` kernel test robot
2021-06-15  9:45 ` [net-next, v3, 08/10] net: socket: support hardware timestamp conversion to PHC bound Yangbo Lu
2021-06-15  9:45 ` [net-next, v3, 09/10] selftests/net: timestamping: support binding PHC Yangbo Lu
2021-06-15  9:45 ` [net-next, v3, 10/10] MAINTAINERS: add entry for PTP virtual clock driver Yangbo Lu

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