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 type: ConnectX6DX
Description: ConnectX-6 Dx EN adapter card; 200GbE; Single-port QSFP56; PCIe 4.0 x16; Crypto and Secure Boot
Configurations: Next Boot New
-E- Unknown Parameter: PPM