From: Richard Cochran <richardcochran@gmail.com>
To: Andrew Lunn <andrew@lunn.ch>
Cc: David Miller <davem@davemloft.net>,
netdev <netdev@vger.kernel.org>,
Vivien Didelot <vivien.didelot@savoirfairelinux.com>,
brandon.streiff@ni.com
Subject: Re: [PATCH net-next 00/10] PTP support for DSA and mv88e6xxx driver.
Date: Tue, 13 Feb 2018 19:59:40 -0800 [thread overview]
Message-ID: <20180214035939.qlamdershe7ydllk@localhost> (raw)
In-Reply-To: <1518566871-12213-1-git-send-email-andrew@lunn.ch>
On Wed, Feb 14, 2018 at 01:07:41AM +0100, Andrew Lunn wrote:
> Further work is requires to support bridges using Boundary Clock or
> Transparent Clock mode.
Small correction: Boundary Clock (BC) works just fine if the DSA ports
are separate (not in a bridge device).
If the DSA ports *are* connected together in a bridge device, the
multicast PTP messages are incorrectly (?) forwarded out all ports by
the kernel SW bridge code. The work around is to add a bridge rule to
drop these frames. With the rule in place, BC also works in this
configuration.
Transparent Clock would work as far as the driver and kernel go, but
ptp4l does not yet implement it.
Thanks,
Richard
next prev parent reply other threads:[~2018-02-14 3:59 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-14 0:07 [PATCH net-next 00/10] PTP support for DSA and mv88e6xxx driver Andrew Lunn
2018-02-14 0:07 ` [PATCH net-next 01/10] net: ptp: Add stub for ptp_classify_raw() Andrew Lunn
2018-02-14 0:07 ` [PATCH net-next 02/10] net: dsa: mv88e6xxx: export g2 register accessors Andrew Lunn
2018-02-14 0:07 ` [PATCH net-next 03/10] net: dsa: mv88e6xxx: add accessors for PTP/TAI registers Andrew Lunn
2018-02-14 0:07 ` [PATCH net-next 04/10] net: dsa: mv88e6xxx: expose switch time as a PTP hardware clock Andrew Lunn
2018-02-14 0:07 ` [PATCH net-next 05/10] net: dsa: mv88e6xxx: add support for GPIO configuration Andrew Lunn
2018-02-14 0:07 ` [PATCH net-next 06/10] net: dsa: mv88e6xxx: add support for event capture Andrew Lunn
2018-02-14 0:07 ` [PATCH net-next 07/10] net: dsa: forward hardware timestamping ioctls to switch driver Andrew Lunn
2018-02-14 0:07 ` [PATCH net-next 08/10] net: dsa: forward timestamping callbacks to switch drivers Andrew Lunn
2018-02-14 0:07 ` [PATCH net-next 09/10] net: dsa: mv88e6xxx: add rx/tx timestamping support Andrew Lunn
2018-02-14 0:07 ` [PATCH net-next 10/10] net: dsa: mv88e6xxx: add workaround for 6341 timestamping Andrew Lunn
2018-02-14 3:59 ` Richard Cochran [this message]
2018-02-14 19:38 ` [PATCH net-next 00/10] PTP support for DSA and mv88e6xxx driver David Miller
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