Hello,

Struggling to get PTP working!

ethtool reports no SOF_TIMESTAMPING_TX_SOFTWARE
ptp4l says the same

I modified the driver to add a call to skb_tx_timestamp().
I also added a printk statement to convince myself that function was 
being called.

Yet still ethtool reports no SOF_TIMESTAMPING_TX_SOFTWARE.

Do I need to add some code in the driver to set some flags to tell 
ethtool that software timestamping is enabled?
How does ethtool know SOF_TIMESTAMPING_TX_SOFTWARE is available in the 
driver?

This ethernet link is actually virtual ethernet that runs over a PCIe 
link between 2 devices on the same PCB. In all other respects it 
functions just like a normal ethernet link.
Could this be my problem?

Any pointers would be appreciated

Ray



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