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Message-ID: <20250522134839.1336-1-darinzon@amazon.com> Date: Thu, 22 May 2025 16:48:31 +0300 From: David Arinzon <darinzon@...zon.com> To: David Miller <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, <netdev@...r.kernel.org> CC: David Arinzon <darinzon@...zon.com>, Eric Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>, Simon Horman <horms@...nel.org>, "Richard Cochran" <richardcochran@...il.com>, "Woodhouse, David" <dwmw@...zon.com>, "Machulsky, Zorik" <zorik@...zon.com>, "Matushevsky, Alexander" <matua@...zon.com>, Saeed Bshara <saeedb@...zon.com>, "Wilson, Matt" <msw@...zon.com>, "Liguori, Anthony" <aliguori@...zon.com>, "Bshara, Nafea" <nafea@...zon.com>, "Schmeilin, Evgeny" <evgenys@...zon.com>, "Belgazal, Netanel" <netanel@...zon.com>, "Saidi, Ali" <alisaidi@...zon.com>, "Herrenschmidt, Benjamin" <benh@...zon.com>, "Kiyanovski, Arthur" <akiyano@...zon.com>, "Dagan, Noam" <ndagan@...zon.com>, "Bernstein, Amit" <amitbern@...zon.com>, "Agroskin, Shay" <shayagr@...zon.com>, "Ostrovsky, Evgeny" <evostrov@...zon.com>, "Tabachnik, Ofir" <ofirt@...zon.com>, "Machnikowski, Maciek" <maciek@...hnikowski.net>, Rahul Rameshbabu <rrameshbabu@...dia.com>, Gal Pressman <gal@...dia.com>, Vadim Fedorenko <vadim.fedorenko@...ux.dev>, Andrew Lunn <andrew@...n.ch>, Leon Romanovsky <leon@...nel.org> Subject: [PATCH v10 net-next 0/8] PHC support in ENA driver Changes in v10: - Remove error checks for debugfs calls Changes in v9 (https://lore.kernel.org/netdev/20250521114254.369-1-darinzon@amazon.com/): - Use devlink instead of sysfs for PHC enablement - Use debugfs instead of sysfs for PHC stats - Add PHC error flags and break down phc_err into two errors - Various style changes Changes in v8 (https://lore.kernel.org/netdev/20250304190504.3743-1-darinzon@amazon.com/): - Create a sysfs entry for each PHC stat Changes in v7 (https://lore.kernel.org/netdev/20250218183948.757-1-darinzon@amazon.com/): - Move PHC stats to sysfs - Add information about PHC enablement - Remove unrelated style changes Changes in v6 (https://lore.kernel.org/netdev/20250206141538.549-1-darinzon@amazon.com/): - Remove PHC error bound Changes in v5 (https://lore.kernel.org/netdev/20250122102040.752-1-darinzon@amazon.com/): - Add PHC error bound - Add PHC enablement and error bound retrieval through sysfs Changes in v4 (https://lore.kernel.org/netdev/20241114095930.200-1-darinzon@amazon.com/): - Minor documentation change (resolution instead of accuracy) Changes in v3 (https://lore.kernel.org/netdev/20241103113140.275-1-darinzon@amazon.com/): - Resolve a compilation error Changes in v2 (https://lore.kernel.org/netdev/20241031085245.18146-1-darinzon@amazon.com/): - CCd PTP maintainer - Fixed style issues - Fixed documentation warning v1 (https://lore.kernel.org/netdev/20241021052011.591-1-darinzon@amazon.com/) This patchset adds the support for PHC (PTP Hardware Clock) in the ENA driver. The documentation part of the patchset includes additional information, including statistics, utilization and invocation examples through the testptp utility. David Arinzon (8): net: ena: Add PHC support in the ENA driver net: ena: PHC silent reset net: ena: Add device reload capability through devlink net: ena: Control PHC enable through devlink net: ena: Add debugfs support to the ENA driver net: ena: View PHC stats using debugfs net: ena: Add PHC documentation net: ena: Add a DEVLINK readme .../device_drivers/ethernet/amazon/ena.rst | 126 +++++++++ Documentation/networking/devlink/ena.rst | 25 ++ Documentation/networking/devlink/index.rst | 1 + drivers/net/ethernet/amazon/Kconfig | 2 + drivers/net/ethernet/amazon/ena/Makefile | 2 +- .../net/ethernet/amazon/ena/ena_admin_defs.h | 74 ++++- drivers/net/ethernet/amazon/ena/ena_com.c | 267 ++++++++++++++++++ drivers/net/ethernet/amazon/ena/ena_com.h | 84 ++++++ drivers/net/ethernet/amazon/ena/ena_debugfs.c | 62 ++++ drivers/net/ethernet/amazon/ena/ena_debugfs.h | 27 ++ drivers/net/ethernet/amazon/ena/ena_devlink.c | 209 ++++++++++++++ drivers/net/ethernet/amazon/ena/ena_devlink.h | 21 ++ drivers/net/ethernet/amazon/ena/ena_ethtool.c | 16 +- drivers/net/ethernet/amazon/ena/ena_netdev.c | 62 +++- drivers/net/ethernet/amazon/ena/ena_netdev.h | 12 + drivers/net/ethernet/amazon/ena/ena_phc.c | 233 +++++++++++++++ drivers/net/ethernet/amazon/ena/ena_phc.h | 37 +++ .../net/ethernet/amazon/ena/ena_regs_defs.h | 8 + 18 files changed, 1258 insertions(+), 10 deletions(-) create mode 100644 Documentation/networking/devlink/ena.rst create mode 100644 drivers/net/ethernet/amazon/ena/ena_debugfs.c create mode 100644 drivers/net/ethernet/amazon/ena/ena_debugfs.h create mode 100644 drivers/net/ethernet/amazon/ena/ena_devlink.c create mode 100644 drivers/net/ethernet/amazon/ena/ena_devlink.h create mode 100644 drivers/net/ethernet/amazon/ena/ena_phc.c create mode 100644 drivers/net/ethernet/amazon/ena/ena_phc.h -- 2.47.1
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