Initial commit

Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>

modules/cas_cache/volume/vol_atomic_dev_bottom.h

@@ -0,0 +1,31 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+#ifndef __VOL_ATOMIC_DEV_BOTTOM_H__
+#define __VOL_ATOMIC_DEV_BOTTOM_H__
+
+#include "../cas_cache.h"
+
+enum atomic_metadata_mode {
+	ATOMIC_METADATA_MODE_ELBA,
+	ATOMIC_METADATA_MODE_SEPBUF,
+	ATOMIC_METADATA_MODE_NONE,
+};
+
+struct atomic_dev_params {
+	unsigned int nsid;
+	uint64_t size;
+	enum atomic_metadata_mode metadata_mode;
+	unsigned is_mode_optimal : 1;
+
+	/* IMPORTANT: If this field is 0, the other fields are invalid! */
+	unsigned is_atomic_capable : 1;
+};
+
+int atomic_dev_init(void);
+
+void atomic_dev_deinit(void);
+
+#endif /* __VOL_ATOMIC_DEV_BOTTOM_H__ */