ebpf_hardirq.h · cryptotaxi247/netdata

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1	// SPDX-License-Identifier: GPL-3.0-or-later
2
3	#ifndef NETDATA_EBPF_HARDIRQ_H
4	#define NETDATA_EBPF_HARDIRQ_H 1
5
6	// Module description
7	#define NETDATA_EBPF_HARDIRQ_MODULE_DESC "Show time spent servicing individual hardware interrupt requests (hard IRQs)."
8
9	#include <stdint.h>
10	#include <stdbool.h>
11	#include "libnetdata/libnetdata.h"
12
13	/*****************************************************************
14	* copied from kernel-collectors repo, with modifications needed
15	* for inclusion here.
16	*****************************************************************/
17
18	#define NETDATA_HARDIRQ_NAME_LEN 32
19	#define NETDATA_HARDIRQ_MAX_IRQS 1024L
20
21	typedef struct hardirq_ebpf_key {
22	int irq;
23	} hardirq_ebpf_key_t;
24
25	enum hardirq_ebpf_static {
26	HARDIRQ_EBPF_STATIC_APIC_THERMAL,
27	HARDIRQ_EBPF_STATIC_APIC_THRESHOLD,
28	HARDIRQ_EBPF_STATIC_APIC_ERROR,
29	HARDIRQ_EBPF_STATIC_APIC_DEFERRED_ERROR,
30	HARDIRQ_EBPF_STATIC_APIC_SPURIOUS,
31	HARDIRQ_EBPF_STATIC_FUNC_CALL,
32	HARDIRQ_EBPF_STATIC_FUNC_CALL_SINGLE,
33	HARDIRQ_EBPF_STATIC_RESCHEDULE,
34	HARDIRQ_EBPF_STATIC_LOCAL_TIMER,
35	HARDIRQ_EBPF_STATIC_IRQ_WORK,
36	HARDIRQ_EBPF_STATIC_X86_PLATFORM_IPI,
37
38	HARDIRQ_EBPF_STATIC_END
39	};
40
41	enum hardirq_maps { HARDIRQ_MAP_LATENCY, HARDIRQ_MAP_LATENCY_STATIC };
42
43	typedef struct hardirq_ebpf_static_val {
44	uint64_t latency;
45	} hardirq_ebpf_static_val_t;
46
47	/*****************************************************************
48	* below this is eBPF plugin-specific code.
49	*****************************************************************/
50
51	#define NETDATA_EBPF_MODULE_NAME_HARDIRQ "hardirq"
52	#define NETDATA_HARDIRQ_CONFIG_FILE "hardirq.conf"
53
54	typedef struct hardirq_val {
55	int irq;
56	bool dim_exists;
57	uint64_t latency;
58	char name[NETDATA_HARDIRQ_NAME_LEN];
59	} hardirq_val_t;
60
61	typedef struct hardirq_static_val {
62	enum hardirq_ebpf_static idx;
63	char *name;
64	uint64_t latency;
65	} hardirq_static_val_t;
66
67	#define NETDATA_EBPF_SYSTEM_HARDIRQ_LATENCY_CTX "system.hardirq_latency"
68	#define NETDATA_HARDIRQ_DIMENSION 1
69
70	extern struct config hardirq_config;
71	void ebpf_hardirq_thread(void *ptr);
72
73	hardirq_val_t *ebpf_hardirq_get(int irq);
74	void ebpf_hardirq_release(int irq);
75
76	#endif /* NETDATA_EBPF_HARDIRQ_H */