linux-kernel - [PATCH net-next v1 0/3] dpll: add ref-sync pins feature

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Message-Id: <20250415175115.1066641-1-arkadiusz.kubalewski@intel.com>
Date: Tue, 15 Apr 2025 19:51:12 +0200
From: Arkadiusz Kubalewski <arkadiusz.kubalewski@...el.com>
To: donald.hunter@...il.com,
	kuba@...nel.org,
	davem@...emloft.net,
	edumazet@...gle.com,
	pabeni@...hat.com,
	horms@...nel.org,
	vadim.fedorenko@...ux.dev,
	jiri@...nulli.us,
	anthony.l.nguyen@...el.com,
	przemyslaw.kitszel@...el.com,
	andrew+netdev@...n.ch,
	aleksandr.loktionov@...el.com
Cc: netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	intel-wired-lan@...ts.osuosl.org,
	linux-rdma@...r.kernel.org,
	Arkadiusz Kubalewski <arkadiusz.kubalewski@...el.com>
Subject: [PATCH net-next v1 0/3] dpll: add ref-sync pins feature

Allow to bind two pins and become a single source of clock signal, where
first of the pins is carring the base frequency and second provides SYNC
pulses.

Verify pins bind state/capabilities:
$ ./tools/net/ynl/pyynl/cli.py \
 --spec Documentation/netlink/specs/dpll.yaml \
 --do pin-get \
 --json '{"id":0}'
{'board-label': 'CVL-SDP22',
 'id': 0,
 [...]
 'reference-sync': [{'id': 1, 'state': 'disconnected'}],
 [...]}

Bind the pins by setting connected state between them:
$ ./tools/net/ynl/pyynl/cli.py \
 --spec Documentation/netlink/specs/dpll.yaml \
 --do pin-set \
 --json '{"id":0, "reference-sync":{"id":1, "state":"connected"}}'

Verify pins bind state:
$ ./tools/net/ynl/pyynl/cli.py \
 --spec Documentation/netlink/specs/dpll.yaml \
 --do pin-get \
 --json '{"id":0}'
{'board-label': 'CVL-SDP22',
 'id': 0,
 [...]
 'reference-sync': [{'id': 1, 'state': 'connected'}],
 [...]}

Unbind the pins by setting disconnected state between them:
$ ./tools/net/ynl/pyynl/cli.py \
 --spec Documentation/netlink/specs/dpll.yaml \
 --do pin-set \
 --json '{"id":0, "reference-sync":{"id":1, "state":"disconnected"}}'


Arkadiusz Kubalewski (3):
  dpll: add reference-sync netlink attribute
  dpll: add reference sync get/set
  ice: add ref-sync dpll pins

 Documentation/netlink/specs/dpll.yaml         |  19 ++
 drivers/dpll/dpll_core.c                      |  27 +++
 drivers/dpll/dpll_core.h                      |   1 +
 drivers/dpll/dpll_netlink.c                   | 188 ++++++++++++++++--
 drivers/dpll/dpll_nl.c                        |  10 +-
 drivers/dpll/dpll_nl.h                        |   1 +
 .../net/ethernet/intel/ice/ice_adminq_cmd.h   |   2 +
 drivers/net/ethernet/intel/ice/ice_dpll.c     | 186 +++++++++++++++++
 include/linux/dpll.h                          |  10 +
 include/uapi/linux/dpll.h                     |   1 +
 10 files changed, 425 insertions(+), 20 deletions(-)


base-commit: 420aabef3ab5fa743afb4d3d391f03ef0e777ca8
-- 
2.38.1