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authorDan Williams <dan.j.williams@intel.com>2015-06-17 17:14:46 -0400
committerDan Williams <dan.j.williams@intel.com>2015-06-24 21:24:10 -0400
commitbf9bccc14c05dae8caba29df6187c731710f5380 (patch)
treecbf00a172bc70598748231748ca2ad14867063ad /drivers/nvdimm/nd-core.h
parent4a826c83db4edc040da3a66dbefd53f0cfcf457d (diff)
downloadlinux-bf9bccc14c05dae8caba29df6187c731710f5380.tar.bz2
libnvdimm: pmem label sets and namespace instantiation.
A complete label set is a PMEM-label per-dimm per-interleave-set where all the UUIDs match and the interleave set cookie matches the hosting interleave set. Present sysfs attributes for manipulation of a PMEM-namespace's 'alt_name', 'uuid', and 'size' attributes. A later patch will make these settings persistent by writing back the label. Note that PMEM allocations grow forwards from the start of an interleave set (lowest dimm-physical-address (DPA)). BLK-namespaces that alias with a PMEM interleave set will grow allocations backward from the highest DPA. Cc: Greg KH <gregkh@linuxfoundation.org> Cc: Neil Brown <neilb@suse.de> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/nd-core.h')
-rw-r--r--drivers/nvdimm/nd-core.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/nvdimm/nd-core.h b/drivers/nvdimm/nd-core.h
index 6a4b2c066ee7..c6c889292bab 100644
--- a/drivers/nvdimm/nd-core.h
+++ b/drivers/nvdimm/nd-core.h
@@ -56,4 +56,16 @@ int nvdimm_bus_register_dimms(struct nvdimm_bus *nvdimm_bus);
int nvdimm_bus_register_regions(struct nvdimm_bus *nvdimm_bus);
int nvdimm_bus_init_interleave_sets(struct nvdimm_bus *nvdimm_bus);
int nd_match_dimm(struct device *dev, void *data);
+struct nd_label_id;
+char *nd_label_gen_id(struct nd_label_id *label_id, u8 *uuid, u32 flags);
+bool nd_is_uuid_unique(struct device *dev, u8 *uuid);
+struct nd_region;
+struct nvdimm_drvdata;
+struct nd_mapping;
+resource_size_t nd_pmem_available_dpa(struct nd_region *nd_region,
+ struct nd_mapping *nd_mapping, resource_size_t *overlap);
+resource_size_t nd_region_available_dpa(struct nd_region *nd_region);
+resource_size_t nvdimm_allocated_dpa(struct nvdimm_drvdata *ndd,
+ struct nd_label_id *label_id);
+void get_ndd(struct nvdimm_drvdata *ndd);
#endif /* __ND_CORE_H__ */