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authorDan Williams <dan.j.williams@intel.com>2015-05-30 12:36:02 -0400
committerDan Williams <dan.j.williams@intel.com>2015-06-24 21:24:10 -0400
commitf524bf271a5cf12a44253194abcf8b6688ff5b9d (patch)
treee477ae652183e73a6a3c6fc592046e255d2bfd15 /drivers/nvdimm/nd.h
parent1b40e09a1232de537b193fa1b6b3ef16d3a1e397 (diff)
downloadlinux-f524bf271a5cf12a44253194abcf8b6688ff5b9d.tar.bz2
libnvdimm: write pmem label set
After 'uuid', 'size', and optionally 'alt_name' have been set to valid values the labels on the dimms can be updated. Write procedure is: 1/ Allocate and write new labels in the "next" index 2/ Free the old labels in the working copy 3/ Write the bitmap and the label space on the dimm 4/ Write the index to make the update valid Label ranges directly mirror the dpa resource values for the given label_id of the namespace. 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.h')
-rw-r--r--drivers/nvdimm/nd.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/nvdimm/nd.h b/drivers/nvdimm/nd.h
index 9b021b626202..bfa849617358 100644
--- a/drivers/nvdimm/nd.h
+++ b/drivers/nvdimm/nd.h
@@ -93,6 +93,7 @@ static inline unsigned nd_inc_seq(unsigned seq)
return next[seq & 3];
}
+
enum nd_async_mode {
ND_SYNC,
ND_ASYNC,
@@ -115,6 +116,8 @@ struct nvdimm;
struct nvdimm_drvdata *to_ndd(struct nd_mapping *nd_mapping);
int nvdimm_init_nsarea(struct nvdimm_drvdata *ndd);
int nvdimm_init_config_data(struct nvdimm_drvdata *ndd);
+int nvdimm_set_config_data(struct nvdimm_drvdata *ndd, size_t offset,
+ void *buf, size_t len);
struct nd_region *to_nd_region(struct device *dev);
int nd_region_to_nstype(struct nd_region *nd_region);
int nd_region_register_namespaces(struct nd_region *nd_region, int *err);