mlxbf-pmc support for BlueField-3
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux-bluefield (Ubuntu) |
New
|
Undecided
|
Unassigned | ||
Focal |
Fix Released
|
Undecided
|
Unassigned | ||
Jammy |
Fix Committed
|
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/
[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.
CVE References
Changed in linux-bluefield (Ubuntu Focal): | |
status: | New → Fix Committed |
Changed in linux-bluefield (Ubuntu Jammy): | |
status: | New → Fix Committed |
tags: |
added: verification-done-focal removed: verification-needed-focal |
tags: | added: verification-done-jammy |
This bug is awaiting verification that the linux-bluefield /5.4.0- 1057.63 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification- needed- focal' to 'verification- done-focal' . If the problem still exists, change the tag 'verification- needed- focal' to 'verification- failed- focal'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.
See https:/ /wiki.ubuntu. com/Testing/ EnableProposed for documentation how to enable and use -proposed. Thank you!