Re: [Linuxptp-users] Hardware PTP clock synchronization

[Alex G. <al....@gm...>]

> It still appears to be running version 1.0

Yes, it was one of the first experiments, on version 1.
I am currently using version 1.3, but there is no improvement.

> 1. Make sure you are using the latest version (ptp4l -v).
Yes, i compiled the latest version 1.3, but command "ptp4l -v" say nothing
(version 1.0 say "1.0") - is this normal?

> 2. Set tx_timestamp_timeout to 1000.
Set, no changes.

> 3. Set fault_reset_interval to ASAP.
Set, faster recovering after errors.

> 4. If the above steps do not yield reasonable results, then recompile
   the driver, changing IGB_PTP_TX_TIMEOUT from (HZ * 15) to (HZ).
Ok, i try this tomorrow.

> Are you running another program that sends PTP messages at the same
time as ptp4l?
Running nothing, and wireshark shows only input packets from switch and
output packets from 82676, according to work of process ptp4l.

I subscribed to E1000-devel mailing list, but still not received
confirmation letter...

I try to use ptp4l in software mode - he shows big master offset (i set
difference between current system time and time in switch of one day), and
this offset does not decrease with time - any clock (realtime, /dev/ptp0)
not synchronized with time from switch. I try to set little difference -
but synchronization does not occur.

Also i found "Ptpd" project (worked only in software mode) - but i can not
get it to work (may be, i need to exactly select the parameters of its
command-line).

Richard and Jake, thank you.
Sincerely, Alexander.