Fast Driver Unload
This feature enables optimizing mlx5 driver teardown time in shutdown and kexec flows.
The fast driver unload is disabled by default. To enable it, the prof_sel module parameter of mlx5_core module should be set to 3.
NVIDIA MLNX_OFED Documentation Rev 5.4-3.2.7.2.3
Linux Kernel Upstream Release Notes v5.17