APPLIED: [SRU][F:linux-bluefield][PATCH v1 0/3] UBUNTU: SAUCE: pwr-mlxbf: Several bug fixes for focal

[Bartlomiej Zolnierkiewicz]

Applied to focal:linux-bluefield/master-next. Thanks.

--
Best regards,
Bartlomiej

On Mon, Oct 30, 2023 at 9:07 PM Asmaa Mnebhi <asmaa at nvidia.com> wrote:
>
> BugLink: https://bugs.launchpad.net/bugs/2041996
>
> 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.
>