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For this we need to add a proper controller init routine and a list of all controllers that is in addition to the list of PCIe controllers, which stays in pci.c. Note that we remove the sysfs device when the last reference to a controller is dropped now - the old code would have kept it around longer, which doesn't make much sense. This requires a new ->reset_ctrl operation to implement controleller resets, and a new ->write_reg32 operation that is required to implement subsystem resets. We also now store caches copied of the NVMe compliance version and the flag if a controller is attached to a subsystem or not in the generic controller structure now. Signed-off-by: Christoph Hellwig <hch@lst.de> [Fixes for pr merge] Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com> |
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