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From: Richard Cochran <richardcochran@gmail.com>
To: Jonathan Lemon <jonathan.lemon@gmail.com>
Cc: netdev@vger.kernel.org, kernel-team@fb.com
Subject: Re: [PATCH] ptp: Add PTP_CLOCK_EXTTSUSR internal ptp_event
Date: Tue, 29 Jun 2021 17:09:33 -0700	[thread overview]
Message-ID: <20210630000933.GA21533@hoboy.vegasvil.org> (raw)
In-Reply-To: <20210629001928.yhiql2dngstkpadb@bsd-mbp.dhcp.thefacebook.com>

On Mon, Jun 28, 2021 at 05:19:28PM -0700, Jonathan Lemon wrote:
> This fits in nicely with the extts event model.  I really
> don't want to have to re-invent another ptp_chardev device
> that does the same thing - nor recreate a extended PTP.

If you have two clocks, then you should expose two PHC devices.

If you want to compare two PHC in hardware, then we can have a new
syscall for that, like clock_compare(clock_t a, clock_t b);

Thanks,
Richard

  reply	other threads:[~2021-06-30  0:09 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-28 18:46 [PATCH] ptp: Add PTP_CLOCK_EXTTSUSR internal ptp_event Jonathan Lemon
2021-06-28 23:30 ` Richard Cochran
2021-06-29  0:19   ` Jonathan Lemon
2021-06-30  0:09     ` Richard Cochran [this message]
2021-06-30  3:50       ` Jonathan Lemon
2021-06-30 14:42         ` Richard Cochran
2021-06-30 15:55           ` Machnikowski, Maciej
2021-06-30 22:16             ` Jonathan Lemon
2021-06-30 22:57           ` Jonathan Lemon
2021-07-01 14:59         ` Richard Cochran
2021-07-01 16:15           ` Jonathan Lemon
2021-07-01 17:07             ` Richard Cochran

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