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From: Richard Cochran <richardcochran@gmail.com>
To: Arun Ramadoss <arun.ramadoss@microchip.com>
Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
	woojung.huh@microchip.com, UNGLinuxDriver@microchip.com,
	andrew@lunn.ch, vivien.didelot@gmail.com, f.fainelli@gmail.com,
	olteanv@gmail.com, davem@davemloft.net, edumazet@google.com,
	kuba@kernel.org, pabeni@redhat.com, linux@armlinux.org.uk,
	Tristram.Ha@microchip.com
Subject: Re: [RFC Patch net-next v2 1/8] net: ptp: add helper for one-step P2P clocks
Date: Tue, 22 Nov 2022 06:34:10 -0800	[thread overview]
Message-ID: <Y3zd4s7c3TPKd/Rb@hoboy.vegasvil.org> (raw)
In-Reply-To: <20221121154150.9573-2-arun.ramadoss@microchip.com>

On Mon, Nov 21, 2022 at 09:11:43PM +0530, Arun Ramadoss wrote:
> +/**
> + * ptp_header_update_correction - Update PTP header's correction field
> + * @skb: packet buffer
> + * @type: type of the packet (see ptp_classify_raw())
> + * @hdr: ptp header
> + * @correction: new correction value
> + *
> + * This updates the correction field of a PTP header and updates the UDP
> + * checksum (if UDP is used as transport). It is needed for hardware capable of
> + * one-step P2P that does not already modify the correction field of Pdelay_Req
> + * event messages on ingress.
> + */

Does this really belong in the common PTP header?

Seems more like a driver/hardware specific workaround to me.

Thanks,
Richard

  reply	other threads:[~2022-11-22 14:34 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-21 15:41 [RFC Patch net-next v2 0/8] net: dsa: microchip: add PTP support for KSZ9x and LAN937x Arun Ramadoss
2022-11-21 15:41 ` [RFC Patch net-next v2 1/8] net: ptp: add helper for one-step P2P clocks Arun Ramadoss
2022-11-22 14:34   ` Richard Cochran [this message]
2022-11-23  7:10     ` Arun.Ramadoss
2022-11-24 14:52       ` Richard Cochran
2022-11-21 15:41 ` [RFC Patch net-next v2 2/8] net: dsa: microchip: adding the posix clock support Arun Ramadoss
2022-11-21 21:33   ` Vladimir Oltean
2022-11-21 22:01   ` Vladimir Oltean
2022-11-21 15:41 ` [RFC Patch net-next v2 3/8] net: dsa: microchip: Initial hardware time stamping support Arun Ramadoss
2022-11-21 23:13   ` Vladimir Oltean
2022-11-23 13:57     ` Arun.Ramadoss
2022-11-24 10:22       ` Vladimir Oltean
2022-11-24 10:52         ` Arun.Ramadoss
2022-11-24 14:14           ` Vladimir Oltean
2022-11-25  7:06             ` Arun.Ramadoss
2022-11-25 21:40               ` Vladimir Oltean
2022-11-21 15:41 ` [RFC Patch net-next v2 4/8] net: dsa: microchip: Manipulating absolute time using ptp hw clock Arun Ramadoss
2022-11-21 15:41 ` [RFC Patch net-next v2 5/8] net: dsa: microchip: enable the ptp interrupt for timestamping Arun Ramadoss
2022-11-21 15:41 ` [RFC Patch net-next v2 6/8] net: dsa: microchip: Adding the ptp packet reception logic Arun Ramadoss
2022-11-21 15:41 ` [RFC Patch net-next v2 7/8] net: dsa: microchip: add the transmission tstamp logic Arun Ramadoss
2022-11-21 22:51   ` Vladimir Oltean
2022-11-23  8:49     ` Arun.Ramadoss
2022-11-21 15:41 ` [RFC Patch net-next v2 8/8] net: dsa: microchip: ptp: add periodic output signal Arun Ramadoss
2022-11-22 14:36   ` Richard Cochran
2022-11-22 14:38   ` Richard Cochran
2022-11-21 21:17 ` [RFC Patch net-next v2 0/8] net: dsa: microchip: add PTP support for KSZ9x and LAN937x Vladimir Oltean

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