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// SPDX-License-Identifier: LGPL-2.1-or-later
/**
* This file is part of libnvme.
* Copyright (c) 2020 Western Digital Corporation or its affiliates.
*
* Authors: Keith Busch <keith.busch@wdc.com>
*/
/**
* display-tree: Scans the nvme topology, prints as an ascii tree with some
* selected attributes for each component.
*/
#include <stdio.h>
#include <inttypes.h>
#include <libnvme.h>
int main()
{
nvme_root_t r;
nvme_host_t h;
nvme_subsystem_t s, _s;
nvme_ctrl_t c, _c;
nvme_path_t p, _p;
nvme_ns_t n, _n;
r = nvme_scan(NULL);
if (!r)
return -1;
printf(".\n");
nvme_for_each_host(r, h) {
nvme_for_each_subsystem_safe(h, s, _s) {
printf("%c-- %s - NQN=%s\n", _s ? '|' : '`',
nvme_subsystem_get_name(s),
nvme_subsystem_get_nqn(s));
nvme_subsystem_for_each_ns_safe(s, n, _n) {
printf("%c |-- %s lba size:%d lba max:%" PRIu64 "\n",
_s ? '|' : ' ',
nvme_ns_get_name(n),
nvme_ns_get_lba_size(n),
nvme_ns_get_lba_count(n));
}
nvme_subsystem_for_each_ctrl_safe(s, c, _c) {
printf("%c %c-- %s %s %s %s\n",
_s ? '|' : ' ', _c ? '|' : '`',
nvme_ctrl_get_name(c),
nvme_ctrl_get_transport(c),
nvme_ctrl_get_address(c),
nvme_ctrl_get_state(c));
nvme_ctrl_for_each_ns_safe(c, n, _n)
printf("%c %c %c-- %s lba size:%d lba max:%" PRIu64 "\n",
_s ? '|' : ' ', _c ? '|' : ' ',
_n ? '|' : '`',
nvme_ns_get_name(n),
nvme_ns_get_lba_size(n),
nvme_ns_get_lba_count(n));
nvme_ctrl_for_each_path_safe(c, p, _p)
printf("%c %c %c-- %s %s\n",
_s ? '|' : ' ', _c ? '|' : ' ',
_p ? '|' : '`',
nvme_path_get_name(p),
nvme_path_get_ana_state(p));
}
}
}
nvme_free_tree(r);
return 0;
}
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