nuttx/net/netdev
Claude 6e14c8cfe5 net/netdev: add NETDEV_TX_STAMP and handle SIOCETHTOOL ETHTOOL_GET_TS_INFO
Add the NETDEV_TX_STAMP capability flag to d_features, next to the
existing NETDEV_RX_STAMP, so a driver can declare that it delivers
hardware TX timestamps.

SIOCETHTOOL and ETHTOOL_GET_TS_INFO were already defined but not
implemented.  Add struct ethtool_ts_info, with the same layout as
Linux, and handle SIOCETHTOOL in netdev_ioctl.c so that userspace (such
as ptpd) can query the timestamping capabilities of an interface the
same way linuxptp/ptp4l does on Linux:

- ETHTOOL_GET_TS_INFO fills so_timestamping from d_features:
  RX_HARDWARE | RAW_HARDWARE with NETDEV_RX_STAMP, otherwise
  RX_SOFTWARE | SOFTWARE (the stack stamps received packets with
  CLOCK_REALTIME), and TX_HARDWARE | RAW_HARDWARE with NETDEV_TX_STAMP.
  phc_index is -1, tx_types and rx_filters are zero.
- Any other ethtool command is passed to the driver's d_ioctl when
  CONFIG_NETDEV_IOCTL is enabled, otherwise -ENOTTY is returned.

Assisted-by: Claude:claude-sonnet-5
Signed-off-by: Daniel P. Carvalho <danieloak@gmail.com>
2026-09-28 12:53:24 -03:00
..
CMakeLists.txt
Kconfig
Make.defs
netdev.h
netdev_carrier.c
netdev_checksum.c
netdev_count.c
netdev_default.c
netdev_findbyaddr.c
netdev_findbyindex.c
netdev_findbyname.c
netdev_foreach.c
netdev_ifconf.c
netdev_input.c
netdev_iob.c
netdev_ioctl.c
netdev_ipv6.c
netdev_lladdrsize.c
netdev_lock.c
netdev_notify_recvcpu.c
netdev_register.c
netdev_stats.c
netdev_txnotify.c
netdev_unregister.c
netdev_verify.c
netdown_notifier.c