ConnectX-6 Dx Adaptor clock PPM configuration

Infrastructure & Networking Adapters and Cables Ethernet Adapter Cards
1

Hi,

We are looking to tune the Mellanox NIC’s clock PPM value for ConnectX-6 Dx Adaptors. I found a reference to similar configuration for older adaptors as below

mlxconfig -d /dev/mst/mt4117_pciconf0 set PPM_P1=-200

But when I try that for ConnectX-6 Dx Adaptor, I get an error as below. Would you know if the parameter is changed for new Adaptors? I tried “mlxconfig -d query” which shows all supported parameters, PPM_P1 is not listed and nothing seems to be close to what PPM_P1 would be doing. Appreciate any suggestions. Thank you.

mlxconfig -d /dev/mst/mt4125_pciconf0 set PPM_P1=-200

Device #1:

Device type: ConnectX6DX
Name: MCX623105AC-VDA_Ax
Description: ConnectX-6 Dx EN adapter card; 200GbE; Single-port QSFP56; PCIe 4.0 x16; Crypto and Secure Boot
Device: /dev/mst/mt4125_pciconf0

Configurations: Next Boot New
-E- Unknown Parameter: PPM

2

Where did you see the reference to the older devices config?

3

Thank you for the response. Correct. It was on older devices. Just an update, I just got roped into another thread with Nvidia Support and learned that this parameter has been deprecated.

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