libnvdimm, pfn: 'struct page' provider infrastructure

[linux-2.6-microblaze.git] / drivers / nvdimm / pfn.h

diff --git a/drivers/nvdimm/pfn.h b/drivers/nvdimm/pfn.h
new file mode 100644 (file)
index 0000000..cc24375
--- /dev/null
+++ b/drivers/nvdimm/pfn.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2014-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __NVDIMM_PFN_H
+#define __NVDIMM_PFN_H
+
+#include <linux/types.h>
+
+#define PFN_SIG_LEN 16
+#define PFN_SIG "NVDIMM_PFN_INFO\0"
+
+struct nd_pfn_sb {
+       u8 signature[PFN_SIG_LEN];
+       u8 uuid[16];
+       u8 parent_uuid[16];
+       __le32 flags;
+       __le16 version_major;
+       __le16 version_minor;
+       __le64 dataoff;
+       __le64 npfns;
+       __le32 mode;
+       u8 padding[4012];
+       __le64 checksum;
+};
+#endif /* __NVDIMM_PFN_H */