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Server Gurus Discussions

Journeyman III

AMD SoC Opteron: 10gbe KR: Auto Negotiation


I am new to this Community. Please help guide me if this needs question/discussion needs to be in some other area. 

Has Anyone achieved successful auto negotiation with 10gbe KR link? 


My System info:

  • AMD SoC Seatlle (Opteron A1100)
  • Ethernet Link Partner = Intel FPGA
  • OS: Debian/Ubuntu. I have downloaded & installed latest Linux Kernel (ver 5.15) -- which has all the latest fixes for the amd-xgbe driver.


Observation:  AN never completes -- both link partners stay stuck in Auto Negotiation Phase. From the FPGA I can see that  AMD chip is not sending the DME packets. FPGA is seen to be sending different packets. 


Any help / suggestion from anyone will be super helpful. 


Thank You in advance!