Public bug reported:
SRU Justification:
[Impact]
There is are several changes that needs to be made to pwr-mlxbf in focal:
* There is a race condition between gpio-mlxbf2.c driver being loaded and
pwr-mlxbf.c being loaded
* When the module is removed, there is a panic due to NULL pointer access
* soft reset needs to be replaced by graceful reboot
[Fix]
* Fix race condition between gpio-mlxbf2.c driver being loaded and pwr-mlxbf.c
being loaded
* Fix panic due to access to NULL pointer when driver is removed via rmmod
* support graceful reboot instead of soft reset
[Test Case]
* all test cases are for BF2:
* trigger the gpio toggling from the BMC: ipmitool raw 0x32 0xA1 0x02
This should trigger a graceful reboot of the DPU.
* rmmod/modprobe
* reboot test and make sure the driver is always loaded
[Regression Potential]
* Run the 100 reboot test and make sure that the driver is loaded with
no issues. That the gpio graceful reboot works.
** Affects: linux-bluefield (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2041996
Title:
pwr-mlxbf: Several bug fixes for focal
Status in linux-bluefield package in Ubuntu:
New
Bug description:
SRU Justification:
[Impact]
There is are several changes that needs to be made to pwr-mlxbf in focal:
* There is a race condition between gpio-mlxbf2.c driver being loaded and
pwr-mlxbf.c being loaded
* When the module is removed, there is a panic due to NULL pointer access
* soft reset needs to be replaced by graceful reboot
[Fix]
* Fix race condition between gpio-mlxbf2.c driver being loaded and
pwr-mlxbf.c being loaded
* Fix panic due to access to NULL pointer when driver is removed via rmmod
* support graceful reboot instead of soft reset
[Test Case]
* all test cases are for BF2:
* trigger the gpio toggling from the BMC: ipmitool raw 0x32 0xA1 0x02
This should trigger a graceful reboot of the DPU.
* rmmod/modprobe
* reboot test and make sure the driver is always loaded
[Regression Potential]
* Run the 100 reboot test and make sure that the driver is loaded with
no issues. That the gpio graceful reboot works.
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