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authorDan Williams <dan.j.williams@intel.com>2015-04-25 10:56:17 +0300
committerDan Williams <dan.j.williams@intel.com>2015-06-25 04:24:10 +0300
commite6dfb2de47768efe8cc37c9a1863d2aff81440fb (patch)
treea1ad89328d88a37195f23ca9421071fc29e6722f /include/linux/libnvdimm.h
parent45def22c1fab85764646746ce38d45b2f3281fa5 (diff)
downloadlinux-e6dfb2de47768efe8cc37c9a1863d2aff81440fb.tar.xz
libnvdimm, nfit: dimm/memory-devices
Enable nvdimm devices to be registered on a nvdimm_bus. The kernel assigned device id for nvdimm devicesis dynamic. If userspace needs a more static identifier it should consult a provider-specific attribute. In the case where NFIT is the provider, the 'nmemX/nfit/handle' or 'nmemX/nfit/serial' attributes may be used for this purpose. Cc: Neil Brown <neilb@suse.de> Cc: <linux-acpi@vger.kernel.org> Cc: Greg KH <gregkh@linuxfoundation.org> Cc: Robert Moore <robert.moore@intel.com> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Christoph Hellwig <hch@lst.de> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Tested-by: Toshi Kani <toshi.kani@hp.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'include/linux/libnvdimm.h')
-rw-r--r--include/linux/libnvdimm.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/libnvdimm.h b/include/linux/libnvdimm.h
index d375cdc4abd5..07787f0dd7de 100644
--- a/include/linux/libnvdimm.h
+++ b/include/linux/libnvdimm.h
@@ -14,6 +14,12 @@
*/
#ifndef __LIBNVDIMM_H__
#define __LIBNVDIMM_H__
+
+enum {
+ /* when a dimm supports both PMEM and BLK access a label is required */
+ NDD_ALIASING = 1 << 0,
+};
+
extern struct attribute_group nvdimm_bus_attribute_group;
struct nvdimm;
@@ -34,5 +40,10 @@ struct nvdimm_bus *nvdimm_bus_register(struct device *parent,
struct nvdimm_bus_descriptor *nfit_desc);
void nvdimm_bus_unregister(struct nvdimm_bus *nvdimm_bus);
struct nvdimm_bus *to_nvdimm_bus(struct device *dev);
+struct nvdimm *to_nvdimm(struct device *dev);
struct nvdimm_bus_descriptor *to_nd_desc(struct nvdimm_bus *nvdimm_bus);
+const char *nvdimm_name(struct nvdimm *nvdimm);
+void *nvdimm_provider_data(struct nvdimm *nvdimm);
+struct nvdimm *nvdimm_create(struct nvdimm_bus *nvdimm_bus, void *provider_data,
+ const struct attribute_group **groups, unsigned long flags);
#endif /* __LIBNVDIMM_H__ */