mlxbf-pmc support for BlueField-3

Bug #2002500 reported by Shravan Kumar Ramani
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux-bluefield (Ubuntu)

Bug Description

SRU Justification:

Currently, the mlxbf-pmc driver supports only BlueField-1 and BlueField-2 devices. BlueField-3 is not supported.

Add support for BlueField-3 devices by adding new access mechanism for programming and reading counter values as in the new design, along with the list of supported events in each HW block in BlueField-3.

[Test Case]
Previously, the driver would not be loaded when the OS is loaded on a BlueField-3 card. With the fix, the driver should get loaded and create sysfs entries as a hwmon device under /sys/class/hwmon/hwmon0.

[Regression Potential]
The ACPI table needs to be in sync with this change since it depends on newly introduces parameters such as mss_enable and llt_enable, which were not present earlier.

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