1 files changed, 75 insertions, 0 deletions
diff --git a/collectors/ebpf.plugin/ebpf_disk.h b/collectors/ebpf.plugin/ebpf_disk.h
new file mode 100644
index 00000000..487ed376
--- /dev/null
+++ b/collectors/ebpf.plugin/ebpf_disk.h
@@ -0,0 +1,75 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef NETDATA_EBPF_DISK_H
+#define NETDATA_EBPF_DISK_H 1
+
+// Module name & description
+#define NETDATA_EBPF_MODULE_NAME_DISK "disk"
+#define NETDATA_EBPF_DISK_MODULE_DESC "Monitor disk latency independent of filesystem."
+
+#include "libnetdata/avl/avl.h"
+#include "libnetdata/ebpf/ebpf.h"
+
+#define NETDATA_EBPF_PROC_PARTITIONS "/proc/partitions"
+
+// Process configuration name
+#define NETDATA_DISK_CONFIG_FILE "disk.conf"
+
+// Decode function extracted from: https://elixir.bootlin.com/linux/v5.10.8/source/include/linux/kdev_t.h#L7
+#define MINORBITS       20
+#define MKDEV(ma,mi)    (((ma) << MINORBITS) | (mi))
+
+enum netdata_latency_disks_flags {
+    NETDATA_DISK_ADDED_TO_PLOT_LIST = 1,
+    NETDATA_DISK_CHART_CREATED = 2,
+    NETDATA_DISK_IS_HERE = 4,
+    NETDATA_DISK_HAS_EFI = 8
+};
+
+/*
+ * The definition (DISK_NAME_LEN) has been a stable value since Kernel 3.0,
+ * I decided to bring it as internal definition, to avoid include linux/genhd.h.
+ */
+#define NETDATA_DISK_NAME_LEN 32
+typedef struct netdata_ebpf_disks {
+    // Search
+    avl_t avl;
+    uint32_t dev;
+    uint32_t major;
+    uint32_t minor;
+    uint32_t bootsector_key;
+    uint64_t start; // start sector
+    uint64_t end;   // end sector
+
+    // Print information
+    char family[NETDATA_DISK_NAME_LEN + 1];
+    char *boot_chart;
+
+    netdata_ebpf_histogram_t histogram;
+
+    uint32_t flags;
+    time_t last_update;
+
+    struct netdata_ebpf_disks *main;
+    struct netdata_ebpf_disks *boot_partition;
+    struct netdata_ebpf_disks *next;
+} netdata_ebpf_disks_t;
+
+enum ebpf_disk_tables { NETDATA_DISK_IO };
+
+typedef struct block_key {
+    uint32_t bin;
+    uint32_t dev;
+} block_key_t;
+
+typedef struct netdata_ebpf_publish_disk {
+    netdata_ebpf_disks_t *plot;
+    struct netdata_ebpf_publish_disk *next;
+} ebpf_publish_disk_t;
+
+extern struct config disk_config;
+
+void *ebpf_disk_thread(void *ptr);
+
+#endif /* NETDATA_EBPF_DISK_H */
+