netdev - Re: [PATCH v1] ptp: add PTP_MULTI_CLOCK

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Message-ID: <ZV56xVnM2ii4Vwks@hoboy.vegasvil.org>
Date: Wed, 22 Nov 2023 14:03:49 -0800
From: Richard Cochran <richardcochran@...il.com>
To: Sagi Maimon <maimon.sagi@...il.com>
Cc: reibax@...il.com, davem@...emloft.net, rrameshbabu@...dia.com,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1] ptp: add PTP_MULTI_CLOCK_GET ioctl

On Wed, Nov 22, 2023 at 09:43:52AM +0200, Sagi Maimon wrote:

> @@ -226,6 +238,7 @@ struct ptp_pin_desc {
>  	_IOWR(PTP_CLK_MAGIC, 18, struct ptp_sys_offset_extended)
>  #define PTP_MASK_CLEAR_ALL  _IO(PTP_CLK_MAGIC, 19)
>  #define PTP_MASK_EN_SINGLE  _IOW(PTP_CLK_MAGIC, 20, unsigned int)
> +#define PTP_MULTI_CLOCK_GET _IOWR(PTP_CLK_MAGIC, 21, struct ptp_multi_clock_get)

I like the idea, but let's have it as a new system call.

The system call will accept a list of clockid_t.

That would allow getting CLOCK_MONOTONIC and PHC time stamps, for example.

Thanks,
Richard