Re: [Linuxptp-users] can't get linux PTP to run

[Keller, J. E <jac...@in...>]

Yes. You first of all need to determine which /dev/ptp device you are supposed to use.

Can you show me the command you use  to run ptp4l?

Second, you may need to modify the config file to increase the tx_retries value in the config file (and pass that config to ptp4l's command option)

Basically, the part may not be returning the tx timestamp on the socket fast enough. If you increase the tx_retries count to a fair bit higher that may resolve the particular error.

- Jake

> -----Original Message-----
> From: Tim...@de... [mailto:Tim-
> Ben...@de...]
> Sent: Tuesday, March 19, 2013 1:42 AM
> To: lin...@li...
> Subject: Re: [Linuxptp-users] can't get linux PTP to run
> 
> First of all thanks for your help.
> 
> >There may be a kernel module released on sourceforge with support  if
> you don't need in-kernel driver, this should >work with the PTP
> framework in 3.2
> 
> >http://sourceforge.net/projects/e1000/files/e1000e%20stable/
> 
> Now I have set up this driver and compiled it with PTP support but there
> is nothing different than before still
> 
> ptp4l[98.033]: port 1: get_ts_info not supported
> ptp4l[98.035]: port 1: INITIALIZING to LISTENING on INITIALIZE
> ptp4l[98.035]: port 0: INITIALIZING to LISTENING on INITIALIZE
> ptp4l[104.035]: port 1: LISTENING to MASTER on
> ANNOUNCE_RECEIPT_TIMEOUT_EXPIRES
> ptp4l[105.041]: recvmsg tx timestamp failed: Resource temporarily
> unavailable
> ptp4l[105.041]: port 1: send sync failed
> ptp4l[105.041]: port 1: MASTER to FAULTY on FAULT_DETECTED
> ptp4l[121.043]: port 1: FAULTY to LISTENING on FAULT_CLEARED
> ptp4l[127.043]: port 1: LISTENING to MASTER on
> ANNOUNCE_RECEIPT_TIMEOUT_EXPIRES
> ptp4l[128.049]: recvmsg tx timestamp failed: Resource temporarily
> unavailable
> 
> As you can see below that the new driver is working:
> 
> ~$ ethtool -i eth2
> driver: e1000e
> version: 2.3.2-NAPI
> firmware-version: 2.1-2
> bus-info: 0000:07:00.0
> 
> changing the kernel to 3.5 or 3.9 would take a lot of time because a lot
> of realtime support is bound into it. So I would prefer staying on 3.2.
> 
> Is there something I still can try?
> 
> Thanks,
> Benny
> 
> -----Ursprüngliche Nachricht-----
> Von: Keller, Jacob E [mailto:jac...@in...]
> Gesendet: Freitag, 15. März 2013 17:33
> An: Richard Cochran; Rapp, Tim-Benjamin
> Cc: lin...@li...
> Betreff: RE: [Linuxptp-users] can't get linux PTP to run
> 
> > -----Original Message-----
> > From: Richard Cochran [mailto:ric...@gm...]
> > Sent: Friday, March 15, 2013 8:37 AM
> > To: Tim...@de...
> > Cc: lin...@li...
> > Subject: Re: [Linuxptp-users] can't get linux PTP to run
> >
> > On Fri, Mar 15, 2013 at 01:24:16PM +0000, Tim-
> > Ben...@de... wrote:
> >
> > > I'm using a custom x86 3.2.37 Kernel with Real Time support. I'm
> > > using an "e1000e Intel 82574" with should be supported.
> >
> > The e1000e driver will have PHC and HW timestamping in kernel 3.9,
> and
> > it has SW time stamping as of kernel 3.5. So it is not supported on
> > your kernel version.
> >
> > The easiest way to get going with your 3.2 kernel is to back port the
> > SW time stamping patch.
> >
> > [ See the table of supported hardware at the linuxptp home page. ]
> >
> > HTH,
> > Richard
> >
> >
> 
> >There may be a kernel module released on sourceforge with support  if
> you don't need in-kernel driver, this should >work with the PTP
> framework in 3.2
> 
> >http://sourceforge.net/projects/e1000/files/e1000e%20stable/
> 
> >- Jake
> 
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