The goal of this patch series is to introduce a common set of ethtool statistics for hardware timestamping that a driver implementer can hook into. The statistics counters added are based on what I believe are common patterns/behaviors found across various hardware timestamping implementations seen in the kernel tree today. The mlx5 family of devices is used as the PoC for this patch series. Other vendors are more than welcome to chim in on this series. Statistics can be queried from either the DMA or PHY layers. I think this concept of layer-based statistics selection and the general timestamping layer selection work Kory Maincent is working on can be converged together [1]. [1] https://lore.kernel.org/netdev/20240216-feature_ptp_netnext-v8-0-510f42f444fb@xxxxxxxxxxx/ Signed-off-by: Rahul Rameshbabu <rrameshbabu@xxxxxxxxxx> --- Rahul Rameshbabu (6): ethtool: add interface to read Tx hardware timestamping statistics net/mlx5e: Introduce lost_cqe statistic counter for PTP Tx port timestamping CQ net/mlx5e: Introduce timestamps statistic counter for Tx DMA layer net/mlx5e: Implement ethtool hardware timestamping statistics tools: ynl: ethtool.py: Make tool invokable from any CWD tools: ynl: ethtool.py: Add ts ethtool statistics group .../ethernet/mellanox/mlx5/counters.rst | 11 +++ .../net/ethernet/mellanox/mlx5/core/en/ptp.c | 1 + .../ethernet/mellanox/mlx5/core/en_ethtool.c | 9 +++ .../ethernet/mellanox/mlx5/core/en_stats.c | 71 +++++++++++++++++++ .../ethernet/mellanox/mlx5/core/en_stats.h | 4 ++ .../net/ethernet/mellanox/mlx5/core/en_tx.c | 6 +- include/linux/ethtool.h | 28 ++++++++ include/uapi/linux/ethtool.h | 20 ++++++ include/uapi/linux/ethtool_netlink.h | 17 +++++ net/ethtool/netlink.h | 3 +- net/ethtool/stats.c | 53 ++++++++++++-- net/ethtool/strset.c | 5 ++ tools/net/ynl/ethtool.py | 9 ++- 13 files changed, 227 insertions(+), 10 deletions(-) -- 2.42.0
