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Currently, it needs a power cycle to be able to prob= e >>> successfully after unbinding the driver. >>=20 >> Yes, what I usually do is the following after unloading Nova: >>=20 >> echo 1 | sudo tee /sys/bus/pci/devices/0000:01:00.0/reset >>=20 >> and this allows it to probe again. Maybe we want to add some equivalent >> programmatically in the driver probe function? > > Probably -- how are things implemented on the GPU side of things? Is the = GPU > firmware surviving a FLR? After a FLR all firmware is cleared and the WPR2 region is wiped, meaning GPU initialization has to be done again from the very beginning.