Hello,
I have a configuration with a PC running Ubuntu and a board running Linux.
ethtool reports that the board doesn't support SOF_TIMESTAMPING_TX_SOFTWARE,
and I disabled ethtool check as mentioned in this post
http://linuxptp-users.narkive.com/Q6DUVkta/using-ptp4l-on-vlan-interfaces#post7
. No
On Tue, Feb 6, 2018 at 7:49 PM, Richard Cochran
wrote:
> By "board running Linux" you mean a custom embedded design, don't you?
Exactly. Connection is established using the BroadR-Reach <-> Ethernet
converter, if it matters.
>> ethtool reports that the board doesn't support
SOF_TIMESTAMPING_TX_S
I also checked the values for the working case, where the host behaves as a
slave, and I found out that:
1) *ptr value is always set to 0x;
2) len (cnt - pdulen) is either 0 or 2, i.e. it is always less then
sizeof(struct TLV).
On Wed, Feb 7, 2018 at 12:39 PM, Yan Yankovskyi <
yan.yankovs.
> The topic was running PTP over a VLAN
> interface. This is now fully supported by the Linux kernel.
Even in kernel version 4.15.2 in file net/8021q/vlan_dev.c function
vlan_ethtool_get_ts_info contains the following code:
info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE |
SOF_TIMESTAMPING_
Hello.
I try to reduce logSyncInterval below default value 0, and I am keep
getting 1 sync message per second. I use the same settings for both master
and slave. Increasing of this value works as expected, but decreasing
affects only output format (avg and max value / variance of values for each
fi
Hello,
In case of use software timestamping we are adjusting system clock. Is it
possible to create another clock, and use it in ptp4l? I see that in
clock_create function in case if phc_index < 0 we use CLOCK_REALTIME as
value for clkid, so I suppose it isn't possible. But it implies that using
so
0, Yan Yankovskyi via
> Linuxptp-users wrote:
> > In case of use software timestamping we are adjusting system clock. Is it
> > possible to create another clock, and use it in ptp4l? I see that in
> > clock_create function in case if phc_index < 0 we use CLOCK_REALTIME as
>
Hello,
I need to get gmTimeBaseIndicator, gmIdentity
and clock value. I use the following command:
pmc -u -b 0 'GET TIME_STATUS_NP'
But I need to receive this data in a kernel module,
and sending the data from user to kernel space is inefficient.
Is there a way of getting such data in kernel spa
Hello,
After manual creation of /dev/ptp0 node, ptp4l doesn't accept this node as
a PTP clock.
I use the following command:
mknod /dev/ptp0 c 252 0
On ptp4l launch I'm getting the following error:
Failed to open /dev/ptp0: No such device or address
But it is actually present. Do you have any t
artup.
On Tue, Apr 24, 2018 at 5:30 PM, Richard Cochran
wrote:
> On Tue, Apr 24, 2018 at 01:35:29PM +0300, Yan Yankovskyi via
> Linuxptp-users wrote:
> > I use the following command:
> >
> > mknod /dev/ptp0 c 252 0
> >
> > On ptp4l launch I'm getting t
Hello,
I use the following settings: logSyncInterval = -5 and summary_interval =
-5. I see synchronization messages approximately every 30 ms, as expected.
But with free_running = 1 option, synchronization occurs once a second.
What is the reason for this?
--
Best regards,
Yan Yankovskyi | Juni
Hello,
I need to restrict ptp4l slave to accept one specific ptp4l instance as a
master, e.g. by MAC address. The reason is security concern. Are there any
solutions for such a problem? I thought about disabling BMCA and defining
master node manually, but I'm not sure is it possible. Maybe the bes
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