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      1 /*	$NetBSD: devlist.c,v 1.6 2023/03/05 23:24:06 simonb Exp $	*/
      2 
      3 /*-
      4  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      5  *
      6  * Copyright (C) 2012-2013 Intel Corporation
      7  * All rights reserved.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     28  * SUCH DAMAGE.
     29  */
     30 
     31 #include <sys/cdefs.h>
     32 #ifndef lint
     33 __RCSID("$NetBSD: devlist.c,v 1.6 2023/03/05 23:24:06 simonb Exp $");
     34 #if 0
     35 __FBSDID("$FreeBSD: head/sbin/nvmecontrol/devlist.c 329824 2018-02-22 13:32:31Z wma $");
     36 #endif
     37 #endif
     38 
     39 #include <sys/param.h>
     40 
     41 #include <err.h>
     42 #include <errno.h>
     43 #include <fcntl.h>
     44 #include <paths.h>
     45 #include <stddef.h>
     46 #include <stdio.h>
     47 #include <stdlib.h>
     48 #include <string.h>
     49 #include <unistd.h>
     50 
     51 #include "nvmectl.h"
     52 
     53 __dead static void
     54 devlist_usage(void)
     55 {
     56 	fprintf(stderr, "usage:\n");
     57 	fprintf(stderr, "\t%s " DEVLIST_USAGE, getprogname());
     58 	exit(1);
     59 }
     60 
     61 static inline uint32_t
     62 ns_get_sector_size(struct nvm_identify_namespace *nsdata)
     63 {
     64 
     65 	return 1 << nsdata->lbaf[NVME_ID_NS_FLBAS(nsdata->flbas)].lbads;
     66 }
     67 
     68 void
     69 devlist(int argc, char *argv[])
     70 {
     71 	struct nvm_identify_controller	cdata;
     72 	struct nvm_identify_namespace	nsdata;
     73 	char				name[64];
     74 	uint8_t				mn[64];
     75 	uint32_t			i;
     76 	int				ch, ctrlr, fd, found, ret;
     77 
     78 	while ((ch = getopt(argc, argv, "")) != -1) {
     79 		switch (ch) {
     80 		default:
     81 			devlist_usage();
     82 		}
     83 	}
     84 
     85 	ctrlr = -1;
     86 	found = 0;
     87 
     88 	while (1) {
     89 		ctrlr++;
     90 		sprintf(name, "%s%d", NVME_CTRLR_PREFIX, ctrlr);
     91 
     92 		ret = open_dev(name, &fd, 0, 0);
     93 
     94 		if (ret != 0) {
     95 			if (ret == EACCES) {
     96 				warnx("could not open "_PATH_DEV"%s\n", name);
     97 				continue;
     98 			} else
     99 				break;
    100 		}
    101 
    102 		found++;
    103 		read_controller_data(fd, &cdata);
    104 		nvme_strvis(mn, sizeof(mn), cdata.mn, sizeof(cdata.mn));
    105 		printf("%6s: %s\n", name, mn);
    106 
    107 		for (i = 0; i < cdata.nn; i++) {
    108 			sprintf(name, "%s%d%s%d", NVME_CTRLR_PREFIX, ctrlr,
    109 			    NVME_NS_PREFIX, i+1);
    110 			read_namespace_data(fd, i+1, &nsdata);
    111 			printf("  %10s (%lldMB)\n",
    112 				name,
    113 				nsdata.nsze *
    114 				(long long)ns_get_sector_size(&nsdata) /
    115 				1024 / 1024);
    116 		}
    117 
    118 		close(fd);
    119 	}
    120 
    121 	if (found == 0) {
    122 		printf("No NVMe controllers found.\n");
    123 		exit(1);
    124 	}
    125 
    126 	exit(0);
    127 }
    128