sbin/nvmecontrol/devlist.c

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