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devlist.c revision 1.2 
      1 /*	$NetBSD: devlist.c,v 1.2 2016/06/04 20:59:49 joerg Exp $	*/
      2 
      3 /*-
      4  * Copyright (C) 2012-2013 Intel Corporation
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 #ifndef lint
     31 __RCSID("$NetBSD: devlist.c,v 1.2 2016/06/04 20:59:49 joerg Exp $");
     32 #if 0
     33 __FBSDID("$FreeBSD: head/sbin/nvmecontrol/devlist.c 260381 2014-01-06 23:48:47Z jimharris $");
     34 #endif
     35 #endif
     36 
     37 #include <sys/param.h>
     38 
     39 #include <err.h>
     40 #include <errno.h>
     41 #include <fcntl.h>
     42 #include <paths.h>
     43 #include <stddef.h>
     44 #include <stdio.h>
     45 #include <stdlib.h>
     46 #include <string.h>
     47 #include <unistd.h>
     48 
     49 #include "nvmectl.h"
     50 
     51 __dead static void
     52 devlist_usage(void)
     53 {
     54 	fprintf(stderr, "usage:\n");
     55 	fprintf(stderr, DEVLIST_USAGE);
     56 	exit(1);
     57 }
     58 
     59 static inline uint32_t
     60 ns_get_sector_size(struct nvm_identify_namespace *nsdata)
     61 {
     62 
     63 	return 1 << nsdata->lbaf[NVME_ID_NS_FLBAS(nsdata->flbas)].lbads;
     64 }
     65 
     66 void
     67 devlist(int argc, char *argv[])
     68 {
     69 	struct nvm_identify_controller	cdata;
     70 	struct nvm_identify_namespace	nsdata;
     71 	char				name[64];
     72 	uint8_t				mn[64];
     73 	uint32_t			i;
     74 	int				ch, ctrlr, fd, found, ret;
     75 
     76 	while ((ch = getopt(argc, argv, "")) != -1) {
     77 		switch (ch) {
     78 		default:
     79 			devlist_usage();
     80 		}
     81 	}
     82 
     83 	ctrlr = -1;
     84 	found = 0;
     85 
     86 	while (1) {
     87 		ctrlr++;
     88 		sprintf(name, "%s%d", NVME_CTRLR_PREFIX, ctrlr);
     89 
     90 		ret = open_dev(name, &fd, 0, 0);
     91 
     92 		if (ret != 0) {
     93 			if (ret == EACCES) {
     94 				warnx("could not open "_PATH_DEV"%s\n", name);
     95 				continue;
     96 			} else
     97 				break;
     98 		}
     99 
    100 		found++;
    101 		read_controller_data(fd, &cdata);
    102 		nvme_strvis(mn, sizeof(mn), cdata.mn, sizeof(cdata.mn));
    103 		printf("%6s: %s\n", name, mn);
    104 
    105 		for (i = 0; i < cdata.nn; i++) {
    106 			sprintf(name, "%s%d%s%d", NVME_CTRLR_PREFIX, ctrlr,
    107 			    NVME_NS_PREFIX, i+1);
    108 			read_namespace_data(fd, i+1, &nsdata);
    109 			printf("  %10s (%lldMB)\n",
    110 				name,
    111 				nsdata.nsze *
    112 				(long long)ns_get_sector_size(&nsdata) /
    113 				1024 / 1024);
    114 		}
    115 
    116 		close(fd);
    117 	}
    118 
    119 	if (found == 0)
    120 		printf("No NVMe controllers found.\n");
    121 
    122 	exit(1);
    123 }
    124