ceph/src/spdk/dpdk/examples/multi_process/hotplug_mp/commands.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018 Intel Corporation.
   3  */
   4
   5 #include <cmdline_rdline.h>
   6 #include <cmdline_parse.h>
   7 #include <cmdline_parse_ipaddr.h>
   8 #include <cmdline_parse_num.h>
   9 #include <cmdline_parse_string.h>
  10 #include <cmdline.h>
  11 #include <rte_ethdev.h>
  12
  13 /**********************************************************/
  14
  15 struct cmd_help_result {
  16         cmdline_fixed_string_t help;
  17 };
  18
  19 static void cmd_help_parsed(__attribute__((unused)) void *parsed_result,
  20                             struct cmdline *cl,
  21                             __attribute__((unused)) void *data)
  22 {
  23         cmdline_printf(cl,
  24                        "commands:\n"
  25                        "- attach <devargs>\n"
  26                        "- detach <devargs>\n"
  27                        "- list\n\n");
  28 }
  29
  30 cmdline_parse_token_string_t cmd_help_help =
  31         TOKEN_STRING_INITIALIZER(struct cmd_help_result, help, "help");
  32
  33 cmdline_parse_inst_t cmd_help = {
  34         .f = cmd_help_parsed,  /* function to call */
  35         .data = NULL,      /* 2nd arg of func */
  36         .help_str = "show help",
  37         .tokens = {        /* token list, NULL terminated */
  38                 (void *)&cmd_help_help,
  39                 NULL,
  40         },
  41 };
  42
  43 /**********************************************************/
  44
  45 struct cmd_quit_result {
  46         cmdline_fixed_string_t quit;
  47 };
  48
  49 static void cmd_quit_parsed(__attribute__((unused)) void *parsed_result,
  50                             struct cmdline *cl,
  51                             __attribute__((unused)) void *data)
  52 {
  53         cmdline_quit(cl);
  54 }
  55
  56 cmdline_parse_token_string_t cmd_quit_quit =
  57         TOKEN_STRING_INITIALIZER(struct cmd_quit_result, quit, "quit");
  58
  59 cmdline_parse_inst_t cmd_quit = {
  60         .f = cmd_quit_parsed,  /* function to call */
  61         .data = NULL,      /* 2nd arg of func */
  62         .help_str = "quit",
  63         .tokens = {        /* token list, NULL terminated */
  64                 (void *)&cmd_quit_quit,
  65                 NULL,
  66         },
  67 };
  68
  69 /**********************************************************/
  70
  71 struct cmd_list_result {
  72         cmdline_fixed_string_t list;
  73 };
  74
  75 static void cmd_list_parsed(__attribute__((unused)) void *parsed_result,
  76                             struct cmdline *cl,
  77                             __attribute__((unused)) void *data)
  78 {
  79         uint16_t port_id;
  80         char dev_name[RTE_DEV_NAME_MAX_LEN];
  81
  82         cmdline_printf(cl, "list all etherdev\n");
  83
  84         RTE_ETH_FOREACH_DEV(port_id) {
  85                 rte_eth_dev_get_name_by_port(port_id, dev_name);
  86                 if (strlen(dev_name) > 0)
  87                         cmdline_printf(cl, "%d\t%s\n", port_id, dev_name);
  88                 else
  89                         printf("empty dev_name is not expected!\n");
  90         }
  91 }
  92
  93 cmdline_parse_token_string_t cmd_list_list =
  94         TOKEN_STRING_INITIALIZER(struct cmd_list_result, list, "list");
  95
  96 cmdline_parse_inst_t cmd_list = {
  97         .f = cmd_list_parsed,  /* function to call */
  98         .data = NULL,      /* 2nd arg of func */
  99         .help_str = "list all devices",
 100         .tokens = {        /* token list, NULL terminated */
 101                 (void *)&cmd_list_list,
 102                 NULL,
 103         },
 104 };
 105
 106 /**********************************************************/
 107
 108 struct cmd_dev_attach_result {
 109         cmdline_fixed_string_t attach;
 110         cmdline_fixed_string_t devargs;
 111 };
 112
 113 static void cmd_dev_attach_parsed(void *parsed_result,
 114                                   struct cmdline *cl,
 115                                   __attribute__((unused)) void *data)
 116 {
 117         struct cmd_dev_attach_result *res = parsed_result;
 118         struct rte_devargs da;
 119
 120         memset(&da, 0, sizeof(da));
 121
 122         if (rte_devargs_parsef(&da, "%s", res->devargs)) {
 123                 cmdline_printf(cl, "cannot parse devargs\n");
 124                 if (da.args)
 125                         free(da.args);
 126                 return;
 127         }
 128
 129         if (!rte_eal_hotplug_add(da.bus->name, da.name, da.args))
 130                 cmdline_printf(cl, "attached device %s\n", da.name);
 131         else
 132                 cmdline_printf(cl, "failed to attached device %s\n",
 133                                 da.name);
 134 }
 135
 136 cmdline_parse_token_string_t cmd_dev_attach_attach =
 137         TOKEN_STRING_INITIALIZER(struct cmd_dev_attach_result, attach,
 138                                  "attach");
 139 cmdline_parse_token_string_t cmd_dev_attach_devargs =
 140         TOKEN_STRING_INITIALIZER(struct cmd_dev_attach_result, devargs, NULL);
 141
 142 cmdline_parse_inst_t cmd_attach_device = {
 143         .f = cmd_dev_attach_parsed,  /* function to call */
 144         .data = NULL,      /* 2nd arg of func */
 145         .help_str = "attach a device",
 146         .tokens = {        /* token list, NULL terminated */
 147                 (void *)&cmd_dev_attach_attach,
 148                 (void *)&cmd_dev_attach_devargs,
 149                 NULL,
 150         },
 151 };
 152
 153 /**********************************************************/
 154
 155 struct cmd_dev_detach_result {
 156         cmdline_fixed_string_t detach;
 157         cmdline_fixed_string_t devargs;
 158 };
 159
 160 static void cmd_dev_detach_parsed(void *parsed_result,
 161                                    struct cmdline *cl,
 162                                    __attribute__((unused)) void *data)
 163 {
 164         struct cmd_dev_detach_result *res = parsed_result;
 165         struct rte_devargs da;
 166
 167         memset(&da, 0, sizeof(da));
 168
 169         if (rte_devargs_parsef(&da, "%s", res->devargs)) {
 170                 cmdline_printf(cl, "cannot parse devargs\n");
 171                 if (da.args)
 172                         free(da.args);
 173                 return;
 174         }
 175
 176         printf("detaching...\n");
 177         if (!rte_eal_hotplug_remove(da.bus->name, da.name))
 178                 cmdline_printf(cl, "detached device %s\n",
 179                         da.name);
 180         else
 181                 cmdline_printf(cl, "failed to dettach device %s\n",
 182                         da.name);
 183 }
 184
 185 cmdline_parse_token_string_t cmd_dev_detach_detach =
 186         TOKEN_STRING_INITIALIZER(struct cmd_dev_detach_result, detach,
 187                                  "detach");
 188
 189 cmdline_parse_token_string_t cmd_dev_detach_devargs =
 190         TOKEN_STRING_INITIALIZER(struct cmd_dev_detach_result, devargs, NULL);
 191
 192 cmdline_parse_inst_t cmd_detach_device = {
 193         .f = cmd_dev_detach_parsed,  /* function to call */
 194         .data = NULL,      /* 2nd arg of func */
 195         .help_str = "detach a device",
 196         .tokens = {        /* token list, NULL terminated */
 197                 (void *)&cmd_dev_detach_detach,
 198                 (void *)&cmd_dev_detach_devargs,
 199                 NULL,
 200         },
 201 };
 202
 203 /**********************************************************/
 204 /**********************************************************/
 205 /****** CONTEXT (list of instruction) */
 206
 207 cmdline_parse_ctx_t main_ctx[] = {
 208         (cmdline_parse_inst_t *)&cmd_help,
 209         (cmdline_parse_inst_t *)&cmd_quit,
 210         (cmdline_parse_inst_t *)&cmd_list,
 211         (cmdline_parse_inst_t *)&cmd_attach_device,
 212         (cmdline_parse_inst_t *)&cmd_detach_device,
 213         NULL,
 214 };