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VolCoM
Beginner
1,375 Views

X710-DA2 with i40e driver : PTP over UDP

Hello,

I can read from : https://www.intel.com/content/dam/www/public/us/en/documents/specification-updates/xl710-10-40-contr... https://www.intel.com/content/dam/www/public/us/en/documents/specification-updates/xl710-10-40-contr...… that :

Starting from NVM image revision 5.05, the 710-series device does not process IEEE 1588 (TimeSync) PTP packets in the UDP payload. It only processes PTP packets using the Layer 2 packet format.

Starting in NVM 6.01, this is supported.

So the Firmware of the NIC apparently supports it since the start of 2018.

I have been able to find in the changelog of the i40e driver from end 2016 :

changelog for i40e-1.5.25

====================================

* De-feature L3 (UDP) PTP frame detection and timestamping on XL710 devices.

Support for L2 PTP frame detection and timestamping remains.

But I can't find a recent driver changelog that says that the feature is back in the driver.

Is the feature back in the driver or not yet ?

Thank you.

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2 Replies
idata
Community Manager
176 Views

Hi VolCoM,

 

 

Thank you for posting in Wired Communities. I will further check on this then update you.

 

 

Regards,

 

Sharon T
VolCoM
Beginner
176 Views

Found it. It's indeed in the driver. A simple ethtool -T showed the information I was looking for. Thank you !

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