Re: [Linuxptp-users] unabel to start ptp4l service in centos 7.4

[Miroslav L. <mli...@re...>]

On Wed, Mar 13, 2019 at 06:19:34PM +0530, Raveendra Muniyappa wrote:
> [root@2-9 ~]# ethtool -T eth0
> Time stamping parameters for eth0:
> Capabilities:
> software-receive      (SOF_TIMESTAMPING_RX_SOFTWARE)
> software-system-clock (SOF_TIMESTAMPING_SOFTWARE)

> Mar 13 17:56:17 2-9 ptp4l: [1397593.140] interface 'eth0' does not support
> requested timestamping mode

> Any suggestion how ptp4l service can be started and also use software based
> timestamping for ptp protocol.

ptp4l cannot be started on this interface. It requires the
SOF_TIMESTAMPING_TX_SOFTWARE capability, which is not printed by
ethtool.

-- 
Miroslav Lichvar