[SRU][F/J:linux-bluefield][PATCH 0/1] mlxbf-pmc: BlueField-3 support
Shravan Kumar Ramani
shravankr at nvidia.com
Wed Jan 11 09:49:22 UTC 2023
BugLink: https://bugs.launchpad.net/bugs/2002501
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.
Shravan Kumar Ramani (1):
UBUNTU: SAUCE: mlxbf-pmc: Support for BlueField-3 performance counters
drivers/platform/mellanox/mlxbf-pmc.c | 252 +++++++++++++--
drivers/platform/mellanox/mlxbf-pmc.h | 445 +++++++++++++++++++++++++-
2 files changed, 658 insertions(+), 39 deletions(-)
--
2.30.1
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