From: Jakub Kicinski <kuba@kernel.org>
To: "Bastien Curutchet (Schneider Electric)" <bastien.curutchet@bootlin.com>
Cc: "Woojung Huh" <woojung.huh@microchip.com>,
UNGLinuxDriver@microchip.com, "Andrew Lunn" <andrew@lunn.ch>,
"Vladimir Oltean" <olteanv@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
"Eric Dumazet" <edumazet@google.com>,
"Paolo Abeni" <pabeni@redhat.com>,
"Richard Cochran" <richardcochran@gmail.com>,
"Russell King" <linux@armlinux.org.uk>,
"Simon Horman" <horms@kernel.org>,
"Maxime Chevallier" <maxime.chevallier@bootlin.com>,
"Pascal Eberhard" <pascal.eberhard@se.com>,
"Miquèl Raynal" <miquel.raynal@bootlin.com>,
"Thomas Petazzoni" <thomas.petazzoni@bootlin.com>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next v3 08/10] net: dsa: microchip: add KSZ8463 tail tag handling
Date: Thu, 30 Jul 2026 19:23:08 -0700 [thread overview]
Message-ID: <20260730192308.6ae496ad@kernel.org> (raw)
In-Reply-To: <20260727-ksz-new-ptp-v3-8-caba39e680e3@bootlin.com>
On Mon, 27 Jul 2026 12:20:50 +0200 Bastien Curutchet (Schneider
Electric) wrote:
> KSZ8463 uses the KSZ9893 DSA TAG driver. However, the KSZ8463 doesn't
> use the tail tag to convey timestamps to the host as KSZ9893 does. It
> uses the reserved fields in the PTP header instead.
Sigh, some of the marvell switches seem to be doing the same thing.
Is this the _only_ option this switch supports?
Reserved fields in protocols are generally reserved, not free to use.
next prev parent reply other threads:[~2026-07-31 2:23 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-27 10:20 [PATCH net-next v3 00/10] net: dsa: microchip: add PTP support for KSZ8463 Bastien Curutchet (Schneider Electric)
2026-07-27 10:20 ` [PATCH net-next v3 01/10] net: dsa: microchip: implement ksz8463_setup() Bastien Curutchet (Schneider Electric)
2026-07-31 2:23 ` Jakub Kicinski
2026-07-31 6:57 ` Bastien Curutchet
2026-07-27 10:20 ` [PATCH net-next v3 02/10] net: dsa: microchip: split ksz8_config_cpu_port() Bastien Curutchet (Schneider Electric)
2026-07-27 10:20 ` [PATCH net-next v3 03/10] net: dsa: microchip: allow the use of other IRQ operations Bastien Curutchet (Schneider Electric)
2026-07-27 10:20 ` [PATCH net-next v3 04/10] net: dsa: microchip: add PTP interrupt handling for KSZ8463 Bastien Curutchet (Schneider Electric)
2026-07-31 2:23 ` Jakub Kicinski
2026-07-31 8:41 ` Bastien Curutchet
2026-07-27 10:20 ` [PATCH net-next v3 05/10] net: dsa: microchip: adapt port offset for KSZ8463's PTP register Bastien Curutchet (Schneider Electric)
2026-07-27 10:20 ` [PATCH net-next v3 06/10] net: dsa: tag_ksz: move the KSZ8795 tag handling below ksz_xmit_timestamp() Bastien Curutchet (Schneider Electric)
2026-07-27 10:20 ` [PATCH net-next v3 07/10] net: dsa: tag_ksz: share code for KSZ8795 and KSZ9893 xmit operations Bastien Curutchet (Schneider Electric)
2026-07-31 2:23 ` Jakub Kicinski
2026-07-31 9:14 ` Bastien Curutchet
2026-07-27 10:20 ` [PATCH net-next v3 08/10] net: dsa: microchip: add KSZ8463 tail tag handling Bastien Curutchet (Schneider Electric)
2026-07-31 2:23 ` Jakub Kicinski [this message]
2026-07-31 6:15 ` Bastien Curutchet
2026-07-31 2:23 ` Jakub Kicinski
2026-07-31 9:59 ` Bastien Curutchet
2026-07-27 10:20 ` [PATCH net-next v3 09/10] net: dsa: microchip: explicitly enable detection of L2 PTP frames Bastien Curutchet (Schneider Electric)
2026-07-27 10:20 ` [PATCH net-next v3 10/10] net: dsa: microchip: add two-steps PTP support for KSZ8463 Bastien Curutchet (Schneider Electric)
2026-07-31 2:23 ` Jakub Kicinski
2026-07-31 10:18 ` Bastien Curutchet
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