Re: [Linuxptp-users] tx_timestamp_timeout and i210

[Axel H. <aho...@gm...>]

Hi Jake,

please forgive me my ignorance. With poll timer you mean tx_timestamp_retries, right? I always left it to its default 100.

With tx_timestamp_timeout set to 5 (milliseconds) I didn't observe the issue.

Cheers
Axel

> -----Original Message-----
> From: Keller, Jacob E [mailto:jac...@in...]
> Sent: Monday, July 6, 2015 8:21 PM
> To: lin...@li...; aho...@gm...
> Subject: Re: [Linuxptp-users] tx_timestamp_timeout and i210
> 
> If the increase in the polling time is enough to fix this, then it's
> likely just a delay that can be worked around. If you see drops above a
> a few milliseconds (try setting poll timer to 100? Too long and ptp4l
> will delay more significantly as it spins waiting.)
> 
> Regards,
> Jake
> 
> On Fri, 2015-07-03 at 15:44 +0200, Axel Holzinger wrote:
> > Hi Jake et al,
> >
> > unfortunately the error message "timed out while polling for tx
> > timestamp"
> > still occurs, even with EEE disabled (checked with "ethtool --show
> > -eee
> > eth0".
> >
> > Regards
> > Axel
> >
> > > -----Original Message-----
> > > From: Axel Holzinger [mailto:aho...@gm...]
> > > Sent: Tuesday, June 30, 2015 1:57 AM
> > > To: lin...@li...
> > > Subject: Re: [Linuxptp-users] tx_timestamp_timeout and i210
> > >
> > > Got it. Thank you.
> > >
> > > I modified /etc/network/interfaces and added the last line
> > > ethtool --set-eee eth0 eee off
> > >
> > > Now even after a reboot EEE is switched off on eth0.
> > >
> > > Cheers
> > > Axel
> > >
> > > > -----Original Message-----
> > > > From: Keller, Jacob E [mailto:jac...@in...]
> > > > Sent: Tuesday, June 30, 2015 1:34 AM
> > > > To: Axel Holzinger; lin...@li...
> > > > Subject: RE: [Linuxptp-users] tx_timestamp_timeout and i210
> > > >
> > > > Use ethtool.
> > > >
> > > > $ethtool --set-eee <device>  off
> > > >
> > > > Don't bother with module parameters. On modern kernels all the
> > > > module
> > > > parameters have other ways of configuring the same behavior.
> > > >
> > > > Regards,
> > > > Jake
> > > >
> > > > > -----Original Message-----
> > > > > From: Axel Holzinger [mailto:aho...@gm...]
> > > > > Sent: Monday, June 29, 2015 4:10 PM
> > > > > To: lin...@li...
> > > > > Subject: Re: [Linuxptp-users] tx_timestamp_timeout and i210
> > > > >
> > > > > Hi Jake,
> > > > >
> > > > > thanks for this rast reply.
> > > > >
> > > > > I searched the web and finally did this:
> > > > >
> > > > > sudo modprobe igb EEE=0
> > > > >
> > > > > Does this suffice or how can I read the igb parameters?
> > > > >
> > > > > Thanks a lot
> > > > > Axel
> > > > >
> > > > > > -----Original Message-----
> > > > > > From: Keller, Jacob E [mailto:jac...@in...]
> > > > > > Sent: Tuesday, June 30, 2015 12:34 AM
> > > > > > To: Axel Holzinger; lin...@li...
> > > > > > Subject: RE: [Linuxptp-users] tx_timestamp_timeout and i210
> > > > > >
> > > > > > Hi,
> > > > > >
> > > > > > Make sure you have disabled EEE support. If EEE is on, then
> > > > > > the i210
> > > > > device
> > > > > > can take a very long time to return timestamps if the only
> > > > > > traffic
> > > running
> > > > > is
> > > > > > ptp. (since the link will go to sleep inbetween the frames).
> > > > > >
> > > > > > That should be the issue here. If you still see the issue
> > > > > > please let
> > > me
> > > > > know.
> > > > > >
> > > > > > Regards,
> > > > > > Jake
> > > > > >
> > > > > > > -----Original Message-----
> > > > > > > From: Axel Holzinger [mailto:aho...@gm...]
> > > > > > > Sent: Monday, June 29, 2015 3:24 PM
> > > > > > > To: lin...@li...
> > > > > > > Subject: [Linuxptp-users] tx_timestamp_timeout and i210
> > > > > > >
> > > > > > > Hi Richard et al,
> > > > > > >
> > > > > > > on Ubuntu 14.04 with all updates and latest Intel i210 igb
> > > > > > > driver
> > I
> > > > > > > regularly get tx_timestamp_timeout error messages with the
> > > > > > > default
> > > > > > > timeout
> > > > > > > of 1ms. I then changed to 5ms and since then I don't see
> > > > > > > any more
> > > > > errors.
> > > > > > >
> > > > > > > Does anybody see similar problems? Might this be a problem
> > > > > > > of the
> > > PC
> > > > > > > (some
> > > > > > > years old HP xw workstation) or might this be a i210
> > > > > > > problem?
> > > > > > >
> > > > > > > Any hint appreciated.
> > > > > > >
> > > > > > > Regards
> > > > > > > Axel
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > >
> > >
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