/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2018 Intel Corporation
 */

#include <rte_log.h>
#include <rte_tailq.h>

#ifndef _RTE_TELEMETRY_INTERNAL_H_
#define _RTE_TELEMETRY_INTERNAL_H_

/* Logging Macros */
extern int telemetry_log_level;

#define TELEMETRY_LOG(level, fmt, args...) \
	rte_log(RTE_LOG_ ##level, telemetry_log_level, "%s(): "fmt "\n", \
		__func__, ##args)

#define TELEMETRY_LOG_ERR(fmt, args...) \
	TELEMETRY_LOG(ERR, fmt, ## args)

#define TELEMETRY_LOG_WARN(fmt, args...) \
	TELEMETRY_LOG(WARNING, fmt, ## args)

#define TELEMETRY_LOG_INFO(fmt, args...) \
	TELEMETRY_LOG(INFO, fmt, ## args)

#define MAX_METRICS 256

typedef struct telemetry_client {
	char *file_path;
	int fd;
	TAILQ_ENTRY(telemetry_client) client_list;
} telemetry_client;

typedef struct telemetry_impl {
	int accept_fd;
	int server_fd;
	pthread_t thread_id;
	int thread_status;
	uint32_t socket_id;
	int reg_index[RTE_MAX_ETHPORTS];
	int metrics_register_done;
	TAILQ_HEAD(, telemetry_client) client_list_head;
	struct telemetry_client *request_client;
	int register_fail_count;
} telemetry_impl;

enum rte_telemetry_parser_actions {
	ACTION_GET = 0,
	ACTION_DELETE = 2
};

enum rte_telemetry_stats_type {
	PORT_STATS = 0,
	GLOBAL_STATS = 1
};

/* @internal */
struct telemetry_encode_param {
	enum rte_telemetry_stats_type type;
	union {
		struct port_param {
			int num_metric_ids;
			uint32_t metric_ids[MAX_METRICS];
			int num_port_ids;
			uint32_t port_ids[RTE_MAX_ETHPORTS];
		} pp;
		struct global_param {
			int num_metric_ids;
			uint32_t metric_ids[MAX_METRICS];
		} gp;
	};
};

int32_t
rte_telemetry_parse_client_message(struct telemetry_impl *telemetry, char *buf);

int32_t
rte_telemetry_send_error_response(struct telemetry_impl *telemetry,
	int error_type);

int32_t
rte_telemetry_register_client(struct telemetry_impl *telemetry,
	const char *client_path);

int32_t
rte_telemetry_unregister_client(struct telemetry_impl *telemetry,
	const char *client_path);

/**
 * This is a wrapper for the ethdev api rte_eth_find_next().
 * If rte_eth_find_next() returns the same port id that we passed it,
 * then we know that that port is active.
 */
int32_t
rte_telemetry_is_port_active(int port_id);

int32_t
rte_telemetry_send_ports_stats_values(struct telemetry_encode_param *ep,
	struct telemetry_impl *telemetry);

int32_t
rte_telemetry_socket_messaging_testing(int index, int socket);

int32_t
rte_telemetry_send_global_stats_values(struct telemetry_encode_param *ep,
	struct telemetry_impl *telemetry);

int32_t
rte_telemetry_parser_test(struct telemetry_impl *telemetry);

#endif