1 files changed, 48 insertions, 0 deletions
diff --git a/collectors/ebpf.plugin/ebpf_mdflush.h b/collectors/ebpf.plugin/ebpf_mdflush.h
new file mode 100644
index 00000000..62955074
--- /dev/null
+++ b/collectors/ebpf.plugin/ebpf_mdflush.h
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef NETDATA_EBPF_MDFLUSH_H
+#define NETDATA_EBPF_MDFLUSH_H 1
+
+// Module name & description
+#define NETDATA_EBPF_MODULE_NAME_MDFLUSH "mdflush"
+#define NETDATA_EBPF_MD_MODULE_DESC "Show information about multi-device software flushes."
+
+// charts
+#define NETDATA_MDFLUSH_GLOBAL_CHART "mdflush"
+
+// configuration file
+#define NETDATA_DIRECTORY_MDFLUSH_CONFIG_FILE "mdflush.conf"
+
+// copy of mdflush types from kernel-collectors repo.
+typedef uint32_t mdflush_ebpf_key_t;
+typedef uint64_t mdflush_ebpf_val_t;
+
+typedef struct netdata_mdflush {
+    // must be at top for simplified AVL tree usage.
+    // if it's not at the top, we need to use `containerof` for almost all ops.
+    avl_t avl;
+
+    // key & name of device.
+    // the name is generated by the key, usually as `md<unit>`.
+    uint32_t unit;
+    char disk_name[32];
+
+    // have we defined the dimension for this device yet?
+    bool dim_exists;
+
+    // incremental flush count value.
+    uint64_t cnt;
+} netdata_mdflush_t;
+
+enum netdata_mdflush_targets {
+    NETDATA_MD_FLUSH_REQUEST,
+
+    NETDATA_MD_FLUSH_END
+};
+
+void *ebpf_mdflush_thread(void *ptr);
+
+extern struct config mdflush_config;
+extern netdata_ebpf_targets_t mdflush_targets[];
+
+#endif