• Dan Williams's avatar
    libnvdimm, nvdimm: dimm driver and base libnvdimm device-driver infrastructure · 4d88a97a
    Dan Williams authored
    * Implement the device-model infrastructure for loading modules and
      attaching drivers to nvdimm devices.  This is a simple association of a
      nd-device-type number with a driver that has a bitmask of supported
      device types.  To facilitate userspace bind/unbind operations 'modalias'
      and 'devtype', that also appear in the uevent, are added as generic
      sysfs attributes for all nvdimm devices.  The reason for the device-type
      number is to support sub-types within a given parent devtype, be it a
      vendor-specific sub-type or otherwise.
    
    * The first consumer of this infrastructure is the driver
      for dimm devices.  It simply uses control messages to retrieve and
      store the configuration-data image (label set) from each dimm.
    
    Note: nd_device_register() arranges for asynchronous registration of
          nvdimm bus devices by default.
    
    Cc: Greg KH <gregkh@linuxfoundation.org>
    Cc: Neil Brown <neilb@suse.de>
    Acked-by: default avatarChristoph Hellwig <hch@lst.de>
    Tested-by: default avatarToshi Kani <toshi.kani@hp.com>
    Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
    4d88a97a
bus.c 13.4 KB