xref: /linux/Documentation/ABI/testing/sysfs-bus-papr-pmem (revision 95298d63c67673c654c08952672d016212b26054)
1What:		/sys/bus/nd/devices/nmemX/papr/flags
2Date:		Apr, 2020
3KernelVersion:	v5.8
4Contact:	linuxppc-dev <linuxppc-dev@lists.ozlabs.org>, linux-nvdimm@lists.01.org,
5Description:
6		(RO) Report flags indicating various states of a
7		papr-pmem NVDIMM device. Each flag maps to a one or
8		more bits set in the dimm-health-bitmap retrieved in
9		response to H_SCM_HEALTH hcall. The details of the bit
10		flags returned in response to this hcall is available
11		at 'Documentation/powerpc/papr_hcalls.rst' . Below are
12		the flags reported in this sysfs file:
13
14		* "not_armed"	: Indicates that NVDIMM contents will not
15				  survive a power cycle.
16		* "flush_fail"	: Indicates that NVDIMM contents
17				  couldn't be flushed during last
18				  shut-down event.
19		* "restore_fail": Indicates that NVDIMM contents
20				  couldn't be restored during NVDIMM
21				  initialization.
22		* "encrypted"	: NVDIMM contents are encrypted.
23		* "smart_notify": There is health event for the NVDIMM.
24		* "scrubbed"	: Indicating that contents of the
25				  NVDIMM have been scrubbed.
26		* "locked"	: Indicating that NVDIMM contents cant
27				  be modified until next power cycle.
28