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libnvdimm: handle locked label storage areas

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Per the latest version of the "NVDIMM DSM Interface Example" [1], the
label data retrieval routine can report a "locked" status. In this case
all regions associated with that DIMM are disabled until the label area
is unlocked. Provide generic libnvdimm enabling for NVDIMMs with label
data area locking capabilities.

[1]: http://pmem.io/documents/

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2017-05-04 11:47:22 -07:00
parent 8f078b38dd
commit 9d62ed9651
5 changed files with 39 additions and 10 deletions
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1
include/uapi/linux/ndctl.h
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@ -169,6 +169,7 @@ enum {
enum {
ND_ARS_VOLATILE = 1,
ND_ARS_PERSISTENT = 2,
ND_CONFIG_LOCKED = 1,
};
static inline const char *nvdimm_bus_cmd_name(unsigned cmd)