• Christoph Hellwig's avatar
    nvme: move chardev and sysfs interface to common code · f3ca80fc
    Christoph Hellwig authored
    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: default avatarChristoph Hellwig <hch@lst.de>
    [Fixes for pr merge]
    Signed-off-by: default avatarKeith Busch <keith.busch@intel.com>
    Signed-off-by: default avatarJens Axboe <axboe@fb.com>
    f3ca80fc
scsi.c 68 KB