Initial commit

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

modules/cas_cache/classifier.h

@@ -0,0 +1,33 @@
+/*
+* Copyright(c) 2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+#ifndef __CLASSIFIER_H__
+#define __CLASSIFIER_H__
+
+struct cas_cls_rule;
+
+/* Initialize classifier and create rules for existing I/O classes */
+int cas_cls_init(ocf_cache_t cache);
+
+/* Deinitialize classifier and remove rules */
+void cas_cls_deinit(ocf_cache_t cache);
+
+/* Allocate and initialize classification rule */
+int cas_cls_rule_create(ocf_cache_t cache,
+		ocf_part_id_t part_id, const char* rule,
+		struct cas_cls_rule **cls_rule);
+
+/* Deinit classification rule */
+void cas_cls_rule_destroy(ocf_cache_t cache, struct cas_cls_rule *r);
+
+/* Bind classification rule to io class */
+void cas_cls_rule_apply(ocf_cache_t cache, ocf_part_id_t part_id,
+		struct cas_cls_rule *r);
+
+/* Determine I/O class for bio */
+ocf_part_id_t cas_cls_classify(ocf_cache_t cache, struct bio *bio);
+
+
+#endif