/*

 * Definitions for the NVM Express interface

 * Copyright (c) 2011-2014, Intel Corporation.

 *

 * This program is free software; you can redistribute it and/or modify it

 * under the terms and conditions of the GNU General Public License,

 * version 2, as published by the Free Software Foundation.

 *

 * This program is distributed in the hope it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for

 * more details.

 */

#ifndef _NVME_H

#define _NVME_H

#include <dirent.h>

#include <stdbool.h>

#include <stdint.h>

#include <endian.h>

#include "plugin.h"

#include "util/json.h"

#include "util/argconfig.h"

#include "linux/nvme.h"

enum nvme_print_flags {

	NORMAL	= 0,

	VERBOSE	= 1 << 0,	/* verbosely decode complex values for humans */

	JSON	= 1 << 1,	/* display in json format */

	VS	= 1 << 2,	/* hex dump vendor specific data areas */

	BINARY	= 1 << 3,	/* binary dump raw bytes */

};

struct nvme_subsystem;

struct nvme_ctrl;

struct nvme_namespace {

	char *name;

	struct nvme_ctrl *ctrl;

	unsigned nsid;

	struct nvme_id_ns ns;

};

struct nvme_ctrl {

	char *name;

	struct nvme_subsystem *subsys;

	char *address;

	char *transport;

	char *state;

	char *ana_state;

	char *traddr;

	char *trsvcid;

	char *host_traddr;

	char *hostnqn;

	char *hostid;

	struct nvme_id_ctrl id;

	int    nr_namespaces;

	struct nvme_namespace *namespaces;

};

struct nvme_subsystem {

	char *name;

	char *subsysnqn;

	int    nr_ctrls;

	struct nvme_ctrl *ctrls;

	int    nr_namespaces;

	struct nvme_namespace *namespaces;

};

struct nvme_topology {

	int    nr_subsystems;

	struct nvme_subsystem *subsystems;

};

#define SYS_NVME "/sys/class/nvme"

void register_extension(struct plugin *plugin);

int parse_and_open(int argc, char **argv, const char *desc,

	const struct argconfig_commandline_options *clo);

extern const char *devicename;

enum nvme_print_flags validate_output_format(char *format);

int __id_ctrl(int argc, char **argv, struct command *cmd,

	struct plugin *plugin, void (*vs)(__u8 *vs, struct json_object *root));

char *nvme_char_from_block(char *block);

void *mmap_registers(const char *dev);

extern int current_index;

int scan_namespace_filter(const struct dirent *d);

int scan_ctrl_paths_filter(const struct dirent *d);

int scan_ctrls_filter(const struct dirent *d);

int scan_subsys_filter(const struct dirent *d);

int scan_dev_filter(const struct dirent *d);

int scan_subsystems(struct nvme_topology *t, const char *subsysnqn,

		    __u32 ns_instance);

void free_topology(struct nvme_topology *t);

char *get_nvme_subsnqn(char *path);

char *nvme_get_ctrl_attr(char *path, const char *attr);

#endif /* _NVME_H */