diff options
| author | Yangbo Lu <yangbo.lu@nxp.com> | 2021-06-30 16:11:56 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-07-01 13:08:18 -0700 |
| commit | c156174a67070042d51d2c866146d3c934d5468c (patch) | |
| tree | cf965dceb36a44ea1b61da4c97c18d58163c9e34 /include/linux/ethtool.h | |
| parent | acb288e8047b7569fbc9af6fa6e9405315345103 (diff) | |
ethtool: add a new command for getting PHC virtual clocks
Add an interface for getting PHC (PTP Hardware Clock)
virtual clocks, which are based on PHC physical clock
providing hardware timestamp to network packets.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/ethtool.h')
| -rw-r--r-- | include/linux/ethtool.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h index 29dbb603bc91..232daaec56e4 100644 --- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -758,6 +758,16 @@ ethtool_params_from_link_mode(struct ethtool_link_ksettings *link_ksettings, enum ethtool_link_mode_bit_indices link_mode); /** + * ethtool_get_phc_vclocks - Derive phc vclocks information, and caller + * is responsible to free memory of vclock_index + * @dev: pointer to net_device structure + * @vclock_index: pointer to pointer of vclock index + * + * Return number of phc vclocks + */ +int ethtool_get_phc_vclocks(struct net_device *dev, int **vclock_index); + +/** * ethtool_sprintf - Write formatted string to ethtool string data * @data: Pointer to start of string to update * @fmt: Format of string to write |