| From: |
| Maciek Machnikowski <maciek-AT-machnikowski.net> |
| To: |
| netdev-AT-vger.kernel.org |
| Subject: |
| [PATCH v4 net-next 0/3] Implement PTP support in netdevsim |
| Date: |
| Mon, 27 Apr 2026 18:47:24 +0200 |
| Message-ID: |
| <20260427164727.15418-1-maciek@machnikowski.net> |
| Cc: |
| kuba-AT-kernel.org, maciek-AT-machnikowski.net, richardcochran-AT-gmail.com, milena.olech-AT-intel.com, willemdebruijn.kernel-AT-gmail.com, andrew-AT-lunn.ch, vadim.fedorenko-AT-linux.dev, horms-AT-kernel.org |
| Archive-link: |
| Article |
This patchset adds support to the PTP HW timestamping emulation in the
netdevsim. It uses existing binding between netdevsim and ptp_mock
driver to generate transmit and receive timestamps.
It also adds the selftest to verify the hw timestamping functionality
running over netdevsim.
v2:
- Added selftest/net/ptp.sh
- Modified ptp_mock to use spin_lock_bh
- Populate ethtool defaults using ethtool_op_get_ts_info
v3:
- Fixed shellcheck issues in the selftest/net/ptp.sh
- Added selftest/net/ptp.sh to the selftest/net/Makefile
- Modified ptp_mock to use spin_lock_irqsave
v4:
- Check if Rx timestamps are enabled before generating a timestamp
- Replace bash selftest script with a python one
- Optimized Tx timestamp generation
Maciek Machnikowski (3):
ptp_mock: Expose ptp_clock_info to external drivers
netdevsim: Implement basic ptp support
selftests:net: Implement ptp4l sync test using netdevsim
drivers/net/netdevsim/ethtool.c | 11 ++
drivers/net/netdevsim/netdev.c | 91 ++++++++++++
drivers/net/netdevsim/netdevsim.h | 1 +
drivers/ptp/ptp_mock.c | 26 ++--
include/linux/ptp_mock.h | 5 +
tools/testing/selftests/net/Makefile | 1 +
tools/testing/selftests/net/ptp.py | 184 +++++++++++++++++++++++++++
7 files changed, 311 insertions(+), 8 deletions(-)
create mode 100755 tools/testing/selftests/net/ptp.py
--
2.53.0
