147 lines
4.1 KiB
C
147 lines
4.1 KiB
C
/*
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* Definitions for the NVM Express interface
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* Copyright (c) 2011-2014, Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*/
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#ifndef _NVME_H
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#define _NVME_H
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#include <dirent.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <endian.h>
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#include <sys/time.h>
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#include "plugin.h"
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#ifdef LIBJSONC
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#include <json-c/json.h>
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#define json_create_object(o) json_object_new_object(o)
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#define json_create_array(a) json_object_new_array(a)
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#define json_free_object(o) json_object_put(o)
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#define json_free_array(a) json_object_put(a)
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#define json_object_add_value_uint(o, k, v) \
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json_object_object_add(o, k, json_object_new_int(v))
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#define json_object_add_value_int(o, k, v) \
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json_object_object_add(o, k, json_object_new_int(v))
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#define json_object_add_value_float(o, k, v) \
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json_object_object_add(o, k, json_object_new_double(v))
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#define json_object_add_value_string(o, k, v) \
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json_object_object_add(o, k, json_object_new_string(v))
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#define json_object_add_value_array(o, k, v) \
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json_object_object_add(o, k, v)
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#define json_object_add_value_object(o, k, v) \
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json_object_object_add(o, k, v)
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#define json_array_add_value_object(o, k) \
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json_object_array_add(o, k)
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#define json_print_object(o, u) \
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printf("%s", json_object_to_json_string_ext(o, JSON_C_TO_STRING_PRETTY))
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#else
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#include "util/json.h"
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#endif
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#include "util/argconfig.h"
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#include "linux/nvme.h"
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enum nvme_print_flags {
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NORMAL = 0,
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VERBOSE = 1 << 0, /* verbosely decode complex values for humans */
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JSON = 1 << 1, /* display in json format */
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VS = 1 << 2, /* hex dump vendor specific data areas */
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BINARY = 1 << 3, /* binary dump raw bytes */
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};
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struct nvme_subsystem;
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struct nvme_ctrl;
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struct nvme_namespace {
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char *name;
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struct nvme_ctrl *ctrl;
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unsigned nsid;
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struct nvme_id_ns ns;
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};
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struct nvme_ctrl {
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char *name;
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char *path;
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struct nvme_subsystem *subsys;
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char *address;
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char *transport;
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char *state;
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char *ana_state;
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char *traddr;
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char *trsvcid;
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char *host_traddr;
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char *hostnqn;
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char *hostid;
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struct nvme_id_ctrl id;
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int nr_namespaces;
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struct nvme_namespace *namespaces;
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};
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struct nvme_subsystem {
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char *name;
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char *subsysnqn;
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int nr_ctrls;
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struct nvme_ctrl *ctrls;
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int nr_namespaces;
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struct nvme_namespace *namespaces;
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};
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struct nvme_topology {
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int nr_subsystems;
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struct nvme_subsystem *subsystems;
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};
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#define SYS_NVME "/sys/class/nvme"
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void register_extension(struct plugin *plugin);
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int parse_and_open(int argc, char **argv, const char *desc,
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const struct argconfig_commandline_options *clo);
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extern const char *devicename;
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extern const char *output_format;
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enum nvme_print_flags validate_output_format(const char *format);
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int __id_ctrl(int argc, char **argv, struct command *cmd,
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struct plugin *plugin, void (*vs)(__u8 *vs, struct json_object *root));
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char *nvme_char_from_block(char *block);
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void *mmap_registers(const char *dev);
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extern int current_index;
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int scan_ctrl_namespace_filter(const struct dirent *d);
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int scan_namespace_filter(const struct dirent *d);
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int scan_ctrl_paths_filter(const struct dirent *d);
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int scan_ctrls_filter(const struct dirent *d);
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int scan_subsys_filter(const struct dirent *d);
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int scan_dev_filter(const struct dirent *d);
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int scan_subsystems(struct nvme_topology *t, const char *subsysnqn,
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__u32 ns_instance, int nsid, char *dev_dir);
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void free_topology(struct nvme_topology *t);
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char *get_nvme_subsnqn(char *path);
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char *nvme_get_ctrl_attr(const char *path, const char *attr);
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void *nvme_alloc(size_t len, bool *huge);
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void nvme_free(void *p, bool huge);
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int uuid_from_dmi(char *uuid);
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int uuid_from_systemd(char *uuid);
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unsigned long long elapsed_utime(struct timeval start_time,
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struct timeval end_time);
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#endif /* _NVME_H */
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