On Thu, Nov 05, 2015 at 10:30:24AM +0000, Duan Andy wrote: > Thanks for your response. Set 'step_threhold' can workaround the > issue even if ifconfig eth0 down/up. The driver after link down and > interface down will reset the MAC that cause ptp timer register > reset to zero, so after link up, stack still think it is locked, in > fact, two ptp timer is out of lock. So driver need keep ptp timer > work during link down ?
Yes, it should keep the time continuous if possible. Some HW does not allow this, but I don't know whether the imx6 has this problem. > And there have another question is that ptp convergence range is > large while running iperf between master and slave. That is to say, > ptp convergence is not good when add networking loading in the > traffic. Do you think it is reasonable ? Using SW time stamping, this is reasonable, but it should not happen with HW time stamping. Thanks, Richard ------------------------------------------------------------------------------ _______________________________________________ Linuxptp-devel mailing list Linuxptp-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-devel
