Two device counters outbound_pci_buffer_overflow and dev_out_of_buffer mentioned in the MLX5 documentation are not available in ethtool. I’m using a ConnectX-5 NIC with kernel version 5.15. Are these two counters not available in ConnectX-5 NICs or is it a driver issue?
Please make sure the MLNX_OFED Latest LTS version (23.10-22.214.171.124) is installed, and that the latest LTS NIC Firmware is installed on the ConnectX-5.
Once all versions are aligned to latest LTS, please re-check for these counters.
If you still encounter any issues, please open a case at: firstname.lastname@example.org, and it will be handled according to entitlement.