Re: [Linuxptp-users] Which distributions have native ptp support?
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Re: [Linuxptp-users] Which distributions have native ptp support?
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From: Gabe B. <Gab...@jd...> - 2013-10-29 00:18:37
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I downloaded ptp4l and compiled and ran it. The behavior is the same, except now poll times out. I have increased the timeout and even modified the code to see what packet was getting transmitted to verify things.
I verified that in wireshark I see the delay req message go out, and the delay response as well.
Looking at the code and reading Documentation/networking/timestamping it looks like the code is trying to get the transmit timestamp of the packet which is expected to be found in the socket error queue.
So this leads me to believe that the timestamp is simply not making it in to the MSG_ERRQUEUE... Again, I have the default RH6.4 kernel/install and the igb driver seems to have support for it as shown below:
ethtool -T eth3
Time stamping parameters for eth3:
Capabilities:
hardware-transmit (SOF_TIMESTAMPING_TX_HARDWARE)
hardware-receive (SOF_TIMESTAMPING_RX_HARDWARE)
hardware-raw-clock (SOF_TIMESTAMPING_RAW_HARDWARE)
PTP Hardware Clock: 1
Hardware Transmit Timestamp Modes:
off (HWTSTAMP_TX_OFF)
on (HWTSTAMP_TX_ON)
Hardware Receive Filter Modes:
none (HWTSTAMP_FILTER_NONE)
all (HWTSTAMP_FILTER_ALL)
ethtool -I eth3
driver: igb
version: 4.0.1-k
Since RH6.4 still is on 2.6.32 kernel, I'm guessing they had to do a bunch of work to back-port the stuff to get things like "ethtool -T" to work. Probably still buggy...
Anyway, not sure what William did to get it to work... I think I am going to just switch to a different distribution that has it supported out of the box as well. Apparently on this thread Fedora 19 and OpenSuse have it.
Oh, I am running in a virtualized environment using DirectPath I/O (a.k.a "passthrough") to assign the I350 driver directly to the VM. Maybe that matters; but I'm fairly certain that DirectPath presents the hardware registers/configuration in all its glory to the VM, thus letting the igb-driver operate the device. The software is the same, so we should be getting timestamps...
Oh well, on to the next distribution!
Thanks!
Gabe
> -----Original Message-----
> From: Gabe Black [mailto:Gab...@jd...]
> Sent: Monday, October 28, 2013 5:19 PM
> To: Keller, Jacob E
> Cc: lin...@li...
> Subject: Re: [Linuxptp-users] Which distributions have native ptp
> support?
>
> I am using the version that comes with a fresh install of the RH 6.4
> release:
>
> rpm -qa | grep ptp
> linuxptp-0-0.6.20121114gite6bbbb.el6.x86_64
>
> ptp4l doesn't appear to have a version option (in this release) and the
> readme file in /usr/shar/doc/linuxptp-0/README.org doesn't either.
>
> At any rate, I will get the latest version and try that and report.
>
> Thank you for the feedback!
>
> > -----Original Message-----
> > From: Keller, Jacob E [mailto:jac...@in...]
> > Sent: Monday, October 28, 2013 4:37 PM
> > To: Gabe Black
> > Cc: Ledda William EXT; lin...@li...
> > Subject: Re: [Linuxptp-users] Which distributions have native ptp
> > support?
> >
> > What version of linuxPTP are you using?
> >
> > It appears you aren't using the 1.3 version as we moved to a method
> > for obtaining the Tx timestamp that uses the poll() call. That might
> > fix your issue.
> >
> > The other option would be to increase the tx_timestamp_timeout value,
> > but I think moving to the newest Linux PTP should be a fix.
> >
> > Regards,
> > Jake
> >
> > On Mon, 2013-10-28 at 21:35 +0000, Gabe Black wrote:
> > > Nm, it was right. We have two subnets that will route to the
> > meinberg, and they both work... So that means I still I don't know
> > what it is...
> > >
> > > strace it shows:
> > > sendto(11,
> > >
> >
> "\1\2\0,\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\2406\237\377\376\30*\213\0\1\
> > > 0\0"..., 44, 0, {sa_family=AF_INET, sin_port=htons(319),
> > > sin_addr=inet_addr("224.0.1.129")}, 16) = \
> > > 44
> > > Followed by a bunch of:
> > >
> > > recvmsg(11, 0x7fff67459250, MSG_ERRQUEUE) = -1 EAGAIN (Resource
> > temporarily unavailable)
> > > nanosleep({0, 1000}, NULL) = 0
> > > recvmsg(11, 0x7fff67459250, MSG_ERRQUEUE) = -1 EAGAIN (Resource
> > temporarily unavailable)
> > > nanosleep({0, 1000}, NULL) = 0
> > > recvmsg(11, 0x7fff67459250, MSG_ERRQUEUE) = -1 EAGAIN (Resource
> > temporarily unavailable)
> > > nanosleep({0, 1000}, NULL) = 0
> > > recvmsg(11, 0x7fff67459250, MSG_ERRQUEUE) = -1 EAGAIN (Resource
> > > temporarily unavailable) ...
> > >
> > >
> > >
> > > > -----Original Message-----
> > > > From: Gabe Black
> > > > Sent: Monday, October 28, 2013 2:20 PM
> > > > To: Gabe Black; 'Keller, Jacob E'
> > > > Cc: 'Ledda William EXT'; 'lin...@li...'
> > > > Subject: RE: [Linuxptp-users] Which distributions have native ptp
> > > > support?
> > > >
> > > > Oh sheesh.. I had a typo and was on the wrong subnet...
> > > >
> > > > It is working now!
> > > >
> > > > > -----Original Message-----
> > > > > From: Gabe Black
> > > > > Sent: Monday, October 28, 2013 1:18 PM
> > > > > To: 'Keller, Jacob E'
> > > > > Cc: Ledda William EXT; lin...@li...
> > > > > Subject: RE: [Linuxptp-users] Which distributions have native
> > > > > ptp support?
> > > > >
> > > > > > -----Original Message-----
> > > > > > From: Keller, Jacob E [mailto:jac...@in...] You
> > > > > > shouldn't have to, however, I would suggest disabling EEE
> > > > > > support, as this has been known to cause issues on the i350
> > > > > >
> > > > > > ethtool --set-eee device eee off
> > > > > >
> > > > > > This should fix your issue, if not please me know.
> > > > >
> > > > > Thank you for the reply.
> > > > >
> > > > > That option does not appear to be available with the stock igb
> > > > > driver of RH6.4
> > > > >
> > > > > [root@ network-scripts]# ethtool -i eth3
> > > > > driver: igb
> > > > > version: 4.0.1-k
> > > > > firmware-version: 0.1470, 0x05fc8000 ...
> > > > > [root@ network-scripts]# ethtool --show-eee eth3 Cannot get EEE
> > > > > settings: Operation not supported
> > > > >
> > > > > Is there another way to disable EEE? Or would not having that
> > > > > option in ethtool mean it is off?
> > > > >
> > > > > Gabe
> > > > >
> > > > > > On Mon, 2013-10-28 at 15:29 +0000, Gabe Black wrote:
> > > > > > > Hi William,
> > > > > > >
> > > > > > > I installed redhat 6.4 and have the intel i350 (with igb
> > > > > > > driver)
> > > > > and
> > > > > > am having trouble getting it to work with a meinberg master.
> > > > > > >
> > > > > > > The output I get is:
> > > > > > >
> > > > > > > ptp4l[246980.523]: selected /dev/ptp1 as PTP clock
> > > > > > > ptp4l[246980.525]: port 1: INITIALIZING to LISTENING on
> > > > INITIALIZE
> > > > > > > ptp4l[246980.526]: port 0: INITIALIZING to LISTENING on
> > > > INITIALIZE
> > > > > > > ptp4l[246980.773]: port 1: new foreign master
> > > > > > > 00606e.fffe.7c230e-
> > > > 1
> > > > > > > ptp4l[246985.014]: selected best master clock
> > > > > > > 00606e.fffe.7c230e
> > > > > > > ptp4l[246985.014]: foreign master not using PTP timescale
> > > > > > > ptp4l[246985.014]: running in a temporal vortex
> > > > > > > ptp4l[246985.014]: port 1: LISTENING to UNCALIBRATED on
> > > > > > > RS_SLAVE
> > > > > > > ptp4l[246985.989]: recvmsg tx timestamp failed: Resource
> > > > > temporarily
> > > > > > > unavailable
> > > > > > > ptp4l[246985.989]: port 1: send delay request failed
> > > > > > > ptp4l[246985.989]: port 1: UNCALIBRATED to FAULTY on
> > > > > > > FAULT_DETECTED
> > > > > > >
> > > > > > > Did you have to do anything differently on the stock RH6.4
> > > > install
> > > > > > > to
> > > > > > get it to work?
> > > > > > >
> > > > > > > Thanks,
> > > > > > > Gabe
> > > > > > >
> > > > > > > > -----Original Message-----
> > > > > > > > From: Ledda William EXT [mailto:Wil...@it...]
> > > > > > > > Sent: Monday, October 21, 2013 1:02 AM
> > > > > > > > To: Richard Cochran; Gabe Black
> > > > > > > > Cc: lin...@li...
> > > > > > > > Subject: RE: [Linuxptp-users] Which distributions have
> > > > > > > > native ptp support?
> > > > > > > >
> > > > > > > > I'm currently using RH 6.4 with Intel i350 (igb driver)
> > with
> > > > > > success
> > > > > > > > (no need to recompile the kernel). About RH 6.5 I know
> > > > > > > > that there will be many improvements, more eth driver
> > > > > > > > supported, and it should include version 1.3 of linuxptp
> package.
> > > > > > > >
> > > > > > > > William
> > > > > > > >
> > >
> >
>
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