linux-kernel - [RFC PATCH 0/2] ptp: add control over HW timestamp latch point

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Message-Id: <20241003213754.926691-1-arkadiusz.kubalewski@intel.com>
Date: Thu,  3 Oct 2024 23:37:52 +0200
From: Arkadiusz Kubalewski <arkadiusz.kubalewski@...el.com>
To: netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	intel-wired-lan@...ts.osuosl.org
Cc: anthony.l.nguyen@...el.com,
	przemyslaw.kitszel@...el.com,
	davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	richardcochran@...il.com,
	Arkadiusz Kubalewski <arkadiusz.kubalewski@...el.com>
Subject: [RFC PATCH 0/2] ptp: add control over HW timestamp latch point

HW support of PTP/timesync solutions in network PHY chips can be
achieved with two different approaches, the timestamp maybe latched
either in the beginning or after the Start of Frame Delimiter (SFD) [1].

Allow ptp device drivers to provide user with control over the timestamp
latch point.

Arkadiusz Kubalewski (2):
  ptp: add control over HW timestamp latch point
  ice: ptp: add control over HW timestamp latch point

 drivers/net/ethernet/intel/ice/ice_ptp.c    | 48 +++++++++++++++++++
 drivers/net/ethernet/intel/ice/ice_ptp_hw.c | 52 +++++++++++++++++++++
 drivers/net/ethernet/intel/ice/ice_ptp_hw.h |  3 +-
 drivers/ptp/ptp_sysfs.c                     | 44 +++++++++++++++++
 include/linux/ptp_clock_kernel.h            | 26 +++++++++++
 5 files changed, 172 insertions(+), 1 deletion(-)

-- 
2.38.1