mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Richard Cochran <richardcochran@gmail.com>
To: Johannes Zink <j.zink@pengutronix.de>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>,
	Alexandre Torgue <alexandre.torgue@foss.st.com>,
	Jose Abreu <joabreu@synopsys.com>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	Russell King <linux@armlinux.org.uk>,
	patchwork-jzi@pengutronix.de, netdev@vger.kernel.org,
	linux-stm32@st-md-mailman.stormreply.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, kernel@pengutronix.de,
	kernel test robot <lkp@intel.com>
Subject: Re: [PATCH v2] net: stmmac: correct MAC propagation delay
Date: Wed, 26 Jul 2023 11:00:03 -0700	[thread overview]
Message-ID: <ZMFfI3xU5pkJW4x4@hoboy.vegasvil.org> (raw)
In-Reply-To: <20230719-stmmac_correct_mac_delay-v2-1-3366f38ee9a6@pengutronix.de>

On Mon, Jul 24, 2023 at 12:01:31PM +0200, Johannes Zink wrote:

> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.h b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.h
> index bf619295d079..d1fe4b46f162 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.h
> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.h
> @@ -26,6 +26,12 @@
>  #define	PTP_ACR		0x40	/* Auxiliary Control Reg */
>  #define	PTP_ATNR	0x48	/* Auxiliary Timestamp - Nanoseconds Reg */
>  #define	PTP_ATSR	0x4c	/* Auxiliary Timestamp - Seconds Reg */
> +#define	PTP_TS_INGR_CORR_NS	0x58	/* Ingress timestamp correction nanoseconds */
> +#define	PTP_TS_EGR_CORR_NS	0x5C	/* Egress timestamp correction nanoseconds*/
> +#define	PTP_TS_INGR_CORR_SNS	0x60	/* Ingress timestamp correction subnanoseconds */
> +#define	PTP_TS_EGR_CORR_SNS	0x64	/* Egress timestamp correction subnanoseconds */

These two...

> +#define	PTP_TS_INGR_LAT	0x68	/* MAC internal Ingress Latency */
> +#define	PTP_TS_EGR_LAT	0x6c	/* MAC internal Egress Latency */

do not exist on earlier versions of the IP core.

I wonder what values are there?

Thanks,
Richard

  parent reply	other threads:[~2023-07-26 18:00 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-24 10:01 Johannes Zink
2023-07-26  3:06 ` Jakub Kicinski
2023-07-26  3:22   ` Richard Cochran
2023-07-26  3:39     ` Jakub Kicinski
2023-07-26  6:04     ` Marc Kleine-Budde
2023-07-26 15:34       ` Richard Cochran
2023-07-27  6:40         ` Johannes Zink
2023-07-27 13:30           ` Richard Cochran
2023-07-26  6:10     ` Johannes Zink
2023-07-26 15:43       ` Richard Cochran
2023-07-27  6:39         ` Johannes Zink
2023-07-27  6:55           ` Johannes Zink
2023-07-27  7:41             ` Johannes Zink
2023-07-27  7:15           ` Kurt Kanzenbach
2023-07-27  7:18             ` Johannes Zink
2023-07-26  5:50   ` Marc Kleine-Budde
2023-07-26  3:50 ` patchwork-bot+netdevbpf
2023-07-26 18:00 ` Richard Cochran [this message]
2023-07-27  6:42   ` Johannes Zink
2023-07-27 13:34     ` Richard Cochran
2023-07-26 20:57 ` Richard Cochran
2023-07-27  7:20   ` Johannes Zink
2023-07-27 13:36     ` Richard Cochran
2023-07-31  7:00       ` Johannes Zink
2023-07-31 13:44         ` Richard Cochran

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=ZMFfI3xU5pkJW4x4@hoboy.vegasvil.org \
    --to=richardcochran@gmail.com \
    --cc=alexandre.torgue@foss.st.com \
    --cc=davem@davemloft.net \
    --cc=edumazet@google.com \
    --cc=j.zink@pengutronix.de \
    --cc=joabreu@synopsys.com \
    --cc=kernel@pengutronix.de \
    --cc=kuba@kernel.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-stm32@st-md-mailman.stormreply.com \
    --cc=linux@armlinux.org.uk \
    --cc=lkp@intel.com \
    --cc=mcoquelin.stm32@gmail.com \
    --cc=netdev@vger.kernel.org \
    --cc=pabeni@redhat.com \
    --cc=patchwork-jzi@pengutronix.de \
    --cc=peppe.cavallaro@st.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®