[Linuxptp-users] PTP master slewing to other network time

[Dave C. <dav...@un...>]

Hi,

I have a group of devices successfully keeping their system clocks
synchronized on a local network using ptp4l. The master is left up to the
bmc arbitration and as all the devices are basically the same, the chosen
master comes down to the device MAC address. I'd like the master time to be
'roughly' UTC, so want to slew/step whoever the current master is to make
this happen.
There's already a process on each device that gets the current time via NTP
or HTTP and so I'd like to make it so that the PTP master accepts times
from this process and slews/steps it's clock appropriately. Devices which
are currently slaves would simply ignore/discard the attempts to set their
time and stay locked to the master.
Is there already a mechanism I can use to do this that I've missed, or
should I try adding one to ptp4l or possibly phc2sys?

Thanks

Dave Craig.