Initial commit

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

inc/cleaning/alru.h

@@ -0,0 +1,74 @@
+/*
+ * Copyright(c) 2012-2018 Intel Corporation
+ * SPDX-License-Identifier: BSD-3-Clause-Clear
+ */
+#ifndef __OCF_CLEANING_ALRU_H__
+#define __OCF_CLEANING_ALRU_H__
+
+/**
+ * @file
+ * @brief ALRU cleaning policy API
+ */
+
+enum ocf_cleaning_alru_parameters {
+	ocf_alru_wake_up_time,
+	ocf_alru_stale_buffer_time,
+	ocf_alru_flush_max_buffers,
+	ocf_alru_activity_threshold,
+};
+
+/**
+ * @name ALRU cleaning policy parameters
+ * @{
+ */
+
+/**
+ * ALRU cleaning thread wake up time
+ */
+
+/** Wake up time minimum value */
+#define OCF_ALRU_MIN_WAKE_UP			1
+/** Wake up time maximum value */
+#define OCF_ALRU_MAX_WAKE_UP			3600
+/** Wake up time default value */
+#define OCF_ALRU_DEFAULT_WAKE_UP		20
+
+/**
+ * ALRU cleaning thread staleness time
+ */
+
+/** Staleness time minimum value */
+#define OCF_ALRU_MIN_STALENESS_TIME		1
+/** Staleness time maximum value */
+#define OCF_ALRU_MAX_STALENESS_TIME		3600
+/** Staleness time default value*/
+#define OCF_ALRU_DEFAULT_STALENESS_TIME		120
+
+/**
+ * ALRU cleaning thread number of dirty cache lines to be flushed in one cycle
+ */
+
+/** Dirty cache lines to be flushed in one cycle minimum value */
+#define OCF_ALRU_MIN_FLUSH_MAX_BUFFERS		1
+/** Dirty cache lines to be flushed in one cycle maximum value */
+#define OCF_ALRU_MAX_FLUSH_MAX_BUFFERS		10000
+/** Dirty cache lines to be flushed in one cycle default value */
+#define OCF_ALRU_DEFAULT_FLUSH_MAX_BUFFERS	100
+
+/**
+ * ALRU cleaning thread cache idle time before flushing thread can start
+ */
+
+/** Idle time before flushing thread can start minimum value */
+#define OCF_ALRU_MIN_ACTIVITY_THRESHOLD		500
+/** Idle time before flushing thread can start maximum value */
+#define OCF_ALRU_MAX_ACTIVITY_THRESHOLD		1000000
+/** Idle time before flushing thread can start default value */
+#define OCF_ALRU_DEFAULT_ACTIVITY_THRESHOLD	10000
+
+/**
+ * @}
+ */
+
+
+#endif /* __OCF_CLEANING_ALRU_H__ */