netdev - Re: [PATCH net-next v2 3/4] net: wangxun: Implement do_aux_work of ptp_clock

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Message-ID: <Z3vzwiMzYDvmKisj@hoboy.vegasvil.org>
Date: Mon, 6 Jan 2025 07:16:18 -0800
From: Richard Cochran <richardcochran@...il.com>
To: Jiawen Wu <jiawenwu@...stnetic.com>
Cc: andrew+netdev@...n.ch, davem@...emloft.net, edumazet@...gle.com,
	kuba@...nel.org, pabeni@...hat.com, linux@...linux.org.uk,
	horms@...nel.org, jacob.e.keller@...el.com, netdev@...r.kernel.org,
	vadim.fedorenko@...ux.dev, mengyuanlou@...-swift.com
Subject: Re: [PATCH net-next v2 3/4] net: wangxun: Implement do_aux_work of
 ptp_clock_info

On Mon, Jan 06, 2025 at 04:45:05PM +0800, Jiawen Wu wrote:

> +static int wx_ptp_feature_enable(struct ptp_clock_info *ptp,
> +				 struct ptp_clock_request *rq, int on)
> +{
> +	struct wx *wx = container_of(ptp, struct wx, ptp_caps);
> +
> +	/**
> +	 * When PPS is enabled, unmask the interrupt for the ClockOut
> +	 * feature, so that the interrupt handler can send the PPS
> +	 * event when the clock SDP triggers. Clear mask when PPS is
> +	 * disabled
> +	 */
> +	if (rq->type != PTP_CLK_REQ_PPS || !wx->ptp_setup_sdp)
> +		return -EOPNOTSUPP;

NAK.

The logic that you added in patch #4 is a periodic output signal, so
your driver will support PTP_CLK_REQ_PEROUT and not PTP_CLK_REQ_PPS.

Please change the driver to use that instead.

Thanks,
Richard