mlxbf-pmc support for BlueField-3

Bug #2002500 reported by Shravan Kumar Ramani
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux-bluefield (Ubuntu)
Expired
Undecided
Unassigned

Bug Description

SRU Justification:

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

[Fix]
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.

Juerg Haefliger (juergh)
tags: added: kernel-daily-bug
Revision history for this message
Yufeng Gao (brokenpipe) wrote :

The task "linux-bluefield (Ubuntu)" has expired because it has had no new comments or updates for more than three years.

If this issue is still present in an Ubuntu LTS kernel still under active support, please reopen the bug and provide updated details. If this issue was reported against an Ubuntu kernel no longer under active support but the issue still exists in a currently supported Ubuntu kernel, please open a new bug against that kernel version and provide the updated details, with a reference link to the original bug.

This action was performed by an automated process maintained by the Ubuntu Kernel Team.

tags: added: kernel-autoclosed kernel-autoclosed-expired
Changed in linux-bluefield (Ubuntu):
status: New → Expired
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