rdma/rdma.c

   1 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
   2 /*
   3  * rdma.c       RDMA tool
   4  * Authors:     Leon Romanovsky <leonro@mellanox.com>
   5  */
   6
   7 #include "rdma.h"
   8 #include "version.h"
   9 #include "color.h"
  10
  11 static void help(char *name)
  12 {
  13         pr_out("Usage: %s [ OPTIONS ] OBJECT { COMMAND | help }\n"
  14                "       %s [ -f[orce] ] -b[atch] filename\n"
  15                "where  OBJECT := { dev | link | resource | system | statistic | help }\n"
  16                "       OPTIONS := { -V[ersion] | -d[etails] | -j[son] | -p[retty] -r[aw]}\n", name, name);
  17 }
  18
  19 static int cmd_help(struct rd *rd)
  20 {
  21         help(rd->filename);
  22         return 0;
  23 }
  24
  25 static int rd_cmd(struct rd *rd, int argc, char **argv)
  26 {
  27         const struct rd_cmd cmds[] = {
  28                 { NULL,         cmd_help },
  29                 { "help",       cmd_help },
  30                 { "dev",        cmd_dev },
  31                 { "link",       cmd_link },
  32                 { "resource",   cmd_res },
  33                 { "system",     cmd_sys },
  34                 { "statistic",  cmd_stat },
  35                 { 0 }
  36         };
  37
  38         rd->argc = argc;
  39         rd->argv = argv;
  40
  41         return rd_exec_cmd(rd, cmds, "object");
  42 }
  43
  44 static int rd_batch_cmd(int argc, char *argv[], void *data)
  45 {
  46         struct rd *rd = data;
  47
  48         return rd_cmd(rd, argc, argv);
  49 }
  50
  51 static int rd_batch(struct rd *rd, const char *name, bool force)
  52 {
  53         return do_batch(name, force, rd_batch_cmd, rd);
  54 }
  55
  56 static int rd_init(struct rd *rd, char *filename)
  57 {
  58         uint32_t seq;
  59         int ret;
  60
  61         rd->filename = filename;
  62         INIT_LIST_HEAD(&rd->dev_map_list);
  63         INIT_LIST_HEAD(&rd->filter_list);
  64
  65         rd->buff = malloc(MNL_SOCKET_BUFFER_SIZE);
  66         if (!rd->buff)
  67                 return -ENOMEM;
  68
  69         rd_prepare_msg(rd, RDMA_NLDEV_CMD_GET,
  70                        &seq, (NLM_F_REQUEST | NLM_F_ACK | NLM_F_DUMP));
  71         ret = rd_send_msg(rd);
  72         if (ret)
  73                 return ret;
  74
  75         return rd_recv_msg(rd, rd_dev_init_cb, rd, seq);
  76 }
  77
  78 static void rd_cleanup(struct rd *rd)
  79 {
  80         rd_free(rd);
  81 }
  82
  83 int main(int argc, char **argv)
  84 {
  85         static const struct option long_options[] = {
  86                 { "version",            no_argument,            NULL, 'V' },
  87                 { "help",               no_argument,            NULL, 'h' },
  88                 { "json",               no_argument,            NULL, 'j' },
  89                 { "pretty",             no_argument,            NULL, 'p' },
  90                 { "details",            no_argument,            NULL, 'd' },
  91                 { "raw",                no_argument,            NULL, 'r' },
  92                 { "force",              no_argument,            NULL, 'f' },
  93                 { "batch",              required_argument,      NULL, 'b' },
  94                 { NULL, 0, NULL, 0 }
  95         };
  96         bool show_driver_details = false;
  97         const char *batch_file = NULL;
  98         bool show_details = false;
  99         bool json_output = false;
 100         bool show_raw = false;
 101         bool force = false;
 102         struct rd rd = {};
 103         char *filename;
 104         int opt;
 105         int err;
 106         filename = basename(argv[0]);
 107
 108         while ((opt = getopt_long(argc, argv, ":Vhdrpjfb:",
 109                                   long_options, NULL)) >= 0) {
 110                 switch (opt) {
 111                 case 'V':
 112                         printf("%s utility, iproute2-%s\n",
 113                                filename, version);
 114                         return EXIT_SUCCESS;
 115                 case 'p':
 116                         pretty = 1;
 117                         break;
 118                 case 'd':
 119                         if (show_details)
 120                                 show_driver_details = true;
 121                         else
 122                                 show_details = true;
 123                         break;
 124                 case 'r':
 125                         show_raw = true;
 126                         break;
 127                 case 'j':
 128                         json_output = 1;
 129                         break;
 130                 case 'f':
 131                         force = true;
 132                         break;
 133                 case 'b':
 134                         batch_file = optarg;
 135                         break;
 136                 case 'h':
 137                         help(filename);
 138                         return EXIT_SUCCESS;
 139                 case ':':
 140                         pr_err("-%c option requires an argument\n", optopt);
 141                         return EXIT_FAILURE;
 142                 default:
 143                         pr_err("Unknown option.\n");
 144                         help(filename);
 145                         return EXIT_FAILURE;
 146                 }
 147         }
 148
 149         argc -= optind;
 150         argv += optind;
 151
 152         rd.show_details = show_details;
 153         rd.show_driver_details = show_driver_details;
 154         rd.json_output = json_output;
 155         rd.pretty_output = pretty;
 156         rd.show_raw = show_raw;
 157
 158         err = rd_init(&rd, filename);
 159         if (err)
 160                 goto out;
 161
 162         if (batch_file)
 163                 err = rd_batch(&rd, batch_file, force);
 164         else
 165                 err = rd_cmd(&rd, argc, argv);
 166 out:
 167         /* Always cleanup */
 168         rd_cleanup(&rd);
 169         return err ? EXIT_FAILURE : EXIT_SUCCESS;
 170 }