** Also affects: linux-bluefield (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: linux-bluefield (Ubuntu Jammy)
Importance: Undecided
Status: New
** Changed in: linux-bluefield (Ubuntu Focal)
Importance: Undecided => Medium
** Changed in: linux-bluefield (Ubuntu Focal)
Status: New => In Progress
** Changed in: linux-bluefield (Ubuntu Focal)
Assignee: (unassigned) => Shravan Kumar Ramani (sramani)
** Changed in: linux-bluefield (Ubuntu Jammy)
Importance: Undecided => Medium
** Changed in: linux-bluefield (Ubuntu Jammy)
Status: New => In Progress
** Changed in: linux-bluefield (Ubuntu Jammy)
Assignee: (unassigned) => Shravan Kumar Ramani (sramani)
** Changed in: linux-bluefield (Ubuntu)
Status: New => Invalid
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Packages, which is subscribed to linux-bluefield in Ubuntu.
https://bugs.launchpad.net/bugs/2004235
Title:
mlxbf-pmc counters not functional for llt_miss block
Status in linux-bluefield package in Ubuntu:
Invalid
Status in linux-bluefield source package in Focal:
In Progress
Status in linux-bluefield source package in Jammy:
In Progress
Bug description:
SRU Justification:
[Impact]
Currently, the driver uses fixed offsets for the control and data registers
in the performance counter module. However, this is not correct since the
module is not uniform in all HW blocks, and in this case, the llt_miss block is
different from the rest.
[Fix]
The number of counters present in each block is not fixed, and hence the
offsets for the control and data registers should also be calculated
accordingly.
[Test Case]
Without the fix, writing 1 to the llt_miss "enable" file will not result in
any of the counters incrementing. With the fix, the counters should increment
even with the default event settings.
[Regression Potential]
Can be considered minimal.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-bluefield/+bug/2004235/+subscriptions
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