rdma/dev.c

   1 /*
   2  * dev.c        RDMA tool
   3  *
   4  *              This program is free software; you can redistribute it and/or
   5  *              modify it under the terms of the GNU General Public License
   6  *              as published by the Free Software Foundation; either version
   7  *              2 of the License, or (at your option) any later version.
   8  *
   9  * Authors:     Leon Romanovsky <leonro@mellanox.com>
  10  */
  11
  12 #include "rdma.h"
  13
  14 static int dev_help(struct rd *rd)
  15 {
  16         pr_out("Usage: %s dev show [DEV]\n", rd->filename);
  17         return 0;
  18 }
  19
  20 static const char *dev_caps_to_str(uint32_t idx)
  21 {
  22 #define RDMA_DEV_FLAGS(x) \
  23         x(RESIZE_MAX_WR, 0) \
  24         x(BAD_PKEY_CNTR, 1) \
  25         x(BAD_QKEY_CNTR, 2) \
  26         x(RAW_MULTI, 3) \
  27         x(AUTO_PATH_MIG, 4) \
  28         x(CHANGE_PHY_PORT, 5) \
  29         x(UD_AV_PORT_ENFORCE_PORT_ENFORCE, 6) \
  30         x(CURR_QP_STATE_MOD, 7) \
  31         x(SHUTDOWN_PORT, 8) \
  32         x(INIT_TYPE, 9) \
  33         x(PORT_ACTIVE_EVENT, 10) \
  34         x(SYS_IMAGE_GUID, 11) \
  35         x(RC_RNR_NAK_GEN, 12) \
  36         x(SRQ_RESIZE, 13) \
  37         x(N_NOTIFY_CQ, 14) \
  38         x(LOCAL_DMA_LKEY, 15) \
  39         x(MEM_WINDOW, 17) \
  40         x(UD_IP_CSUM, 18) \
  41         x(UD_TSO, 19) \
  42         x(XRC, 20) \
  43         x(MEM_MGT_EXTENSIONS, 21) \
  44         x(BLOCK_MULTICAST_LOOPBACK, 22) \
  45         x(MEM_WINDOW_TYPE_2A, 23) \
  46         x(MEM_WINDOW_TYPE_2B, 24) \
  47         x(RC_IP_CSUM, 25) \
  48         x(RAW_IP_CSUM, 26) \
  49         x(CROSS_CHANNEL, 27) \
  50         x(MANAGED_FLOW_STEERING, 29) \
  51         x(SIGNATURE_HANDOVER, 30) \
  52         x(ON_DEMAND_PAGING, 31) \
  53         x(SG_GAPS_REG, 32) \
  54         x(VIRTUAL_FUNCTION, 33) \
  55         x(RAW_SCATTER_FCS, 34) \
  56         x(RDMA_NETDEV_OPA_VNIC, 35)
  57
  58         enum { RDMA_DEV_FLAGS(RDMA_BITMAP_ENUM) };
  59
  60         static const char * const
  61                 rdma_dev_names[] = { RDMA_DEV_FLAGS(RDMA_BITMAP_NAMES) };
  62         #undef RDMA_DEV_FLAGS
  63
  64         if (idx < ARRAY_SIZE(rdma_dev_names) && rdma_dev_names[idx])
  65                 return rdma_dev_names[idx];
  66         return "UNKNOWN";
  67 }
  68
  69 static void dev_print_caps(struct rd *rd, struct nlattr **tb)
  70 {
  71         uint64_t caps;
  72         uint32_t idx;
  73
  74         if (!tb[RDMA_NLDEV_ATTR_CAP_FLAGS])
  75                 return;
  76
  77         caps = mnl_attr_get_u64(tb[RDMA_NLDEV_ATTR_CAP_FLAGS]);
  78
  79         if (rd->json_output) {
  80                 jsonw_name(rd->jw, "caps");
  81                 jsonw_start_array(rd->jw);
  82         } else {
  83                 pr_out("\n    caps: <");
  84         }
  85         for (idx = 0; caps; idx++) {
  86                 if (caps & 0x1) {
  87                         if (rd->json_output) {
  88                                 jsonw_string(rd->jw, dev_caps_to_str(idx));
  89                         } else {
  90                                 pr_out("%s", dev_caps_to_str(idx));
  91                                 if (caps >> 0x1)
  92                                         pr_out(", ");
  93                         }
  94                 }
  95                 caps >>= 0x1;
  96         }
  97
  98         if (rd->json_output)
  99                 jsonw_end_array(rd->jw);
 100         else
 101                 pr_out(">");
 102 }
 103
 104 static void dev_print_fw(struct rd *rd, struct nlattr **tb)
 105 {
 106         const char *str;
 107         if (!tb[RDMA_NLDEV_ATTR_FW_VERSION])
 108                 return;
 109
 110         str = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_FW_VERSION]);
 111         if (rd->json_output)
 112                 jsonw_string_field(rd->jw, "fw", str);
 113         else
 114                 pr_out("fw %s ", str);
 115 }
 116
 117 static void dev_print_node_guid(struct rd *rd, struct nlattr **tb)
 118 {
 119         uint64_t node_guid;
 120         uint16_t vp[4];
 121         char str[32];
 122
 123         if (!tb[RDMA_NLDEV_ATTR_NODE_GUID])
 124                 return;
 125
 126         node_guid = mnl_attr_get_u64(tb[RDMA_NLDEV_ATTR_NODE_GUID]);
 127         memcpy(vp, &node_guid, sizeof(uint64_t));
 128         snprintf(str, 32, "%04x:%04x:%04x:%04x", vp[3], vp[2], vp[1], vp[0]);
 129         if (rd->json_output)
 130                 jsonw_string_field(rd->jw, "node_guid", str);
 131         else
 132                 pr_out("node_guid %s ", str);
 133 }
 134
 135 static void dev_print_sys_image_guid(struct rd *rd, struct nlattr **tb)
 136 {
 137         uint64_t sys_image_guid;
 138         uint16_t vp[4];
 139         char str[32];
 140
 141         if (!tb[RDMA_NLDEV_ATTR_SYS_IMAGE_GUID])
 142                 return;
 143
 144         sys_image_guid = mnl_attr_get_u64(tb[RDMA_NLDEV_ATTR_SYS_IMAGE_GUID]);
 145         memcpy(vp, &sys_image_guid, sizeof(uint64_t));
 146         snprintf(str, 32, "%04x:%04x:%04x:%04x", vp[3], vp[2], vp[1], vp[0]);
 147         if (rd->json_output)
 148                 jsonw_string_field(rd->jw, "sys_image_guid", str);
 149         else
 150                 pr_out("sys_image_guid %s ", str);
 151 }
 152
 153 static const char *node_type_to_str(uint8_t node_type)
 154 {
 155         static const char * const node_type_str[] = { "unknown", "ca",
 156                                                       "switch", "router",
 157                                                       "rnic", "usnic",
 158                                                       "usnic_dp" };
 159         if (node_type < ARRAY_SIZE(node_type_str))
 160                 return node_type_str[node_type];
 161         return "unknown";
 162 }
 163
 164 static void dev_print_node_type(struct rd *rd, struct nlattr **tb)
 165 {
 166         const char *node_str;
 167         uint8_t node_type;
 168
 169         if (!tb[RDMA_NLDEV_ATTR_DEV_NODE_TYPE])
 170                 return;
 171
 172         node_type = mnl_attr_get_u8(tb[RDMA_NLDEV_ATTR_DEV_NODE_TYPE]);
 173         node_str = node_type_to_str(node_type);
 174         if (rd->json_output)
 175                 jsonw_string_field(rd->jw, "node_type", node_str);
 176         else
 177                 pr_out("node_type %s ", node_str);
 178 }
 179
 180 static int dev_parse_cb(const struct nlmsghdr *nlh, void *data)
 181 {
 182         struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
 183         struct rd *rd = data;
 184         const char *name;
 185         uint32_t idx;
 186
 187         mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
 188         if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_DEV_NAME])
 189                 return MNL_CB_ERROR;
 190
 191         idx =  mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
 192         name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
 193         if (rd->json_output) {
 194                 jsonw_uint_field(rd->jw, "ifindex", idx);
 195                 jsonw_string_field(rd->jw, "ifname", name);
 196         } else {
 197                 pr_out("%u: %s: ", idx, name);
 198         }
 199
 200         dev_print_node_type(rd, tb);
 201         dev_print_fw(rd, tb);
 202         dev_print_node_guid(rd, tb);
 203         dev_print_sys_image_guid(rd, tb);
 204         if (rd->show_details)
 205                 dev_print_caps(rd, tb);
 206
 207         if (!rd->json_output)
 208                 pr_out("\n");
 209         return MNL_CB_OK;
 210 }
 211
 212 static int dev_no_args(struct rd *rd)
 213 {
 214         uint32_t seq;
 215         int ret;
 216
 217         rd_prepare_msg(rd, RDMA_NLDEV_CMD_GET,
 218                        &seq, (NLM_F_REQUEST | NLM_F_ACK));
 219         mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_ATTR_DEV_INDEX, rd->dev_idx);
 220         ret = rd_send_msg(rd);
 221         if (ret)
 222                 return ret;
 223
 224         if (rd->json_output)
 225                 jsonw_start_object(rd->jw);
 226         ret = rd_recv_msg(rd, dev_parse_cb, rd, seq);
 227         if (rd->json_output)
 228                 jsonw_end_object(rd->jw);
 229         return ret;
 230 }
 231
 232 static int dev_one_show(struct rd *rd)
 233 {
 234         const struct rd_cmd cmds[] = {
 235                 { NULL,         dev_no_args},
 236                 { 0 }
 237         };
 238
 239         return rd_exec_cmd(rd, cmds, "parameter");
 240 }
 241
 242 static int dev_show(struct rd *rd)
 243 {
 244         struct dev_map *dev_map;
 245         int ret = 0;
 246
 247         if (rd->json_output)
 248                 jsonw_start_array(rd->jw);
 249         if (rd_no_arg(rd)) {
 250                 list_for_each_entry(dev_map, &rd->dev_map_list, list) {
 251                         rd->dev_idx = dev_map->idx;
 252                         ret = dev_one_show(rd);
 253                         if (ret)
 254                                 goto out;
 255                 }
 256         } else {
 257                 dev_map = dev_map_lookup(rd, false);
 258                 if (!dev_map) {
 259                         pr_err("Wrong device name\n");
 260                         ret = -ENOENT;
 261                         goto out;
 262                 }
 263                 rd_arg_inc(rd);
 264                 rd->dev_idx = dev_map->idx;
 265                 ret = dev_one_show(rd);
 266         }
 267 out:
 268         if (rd->json_output)
 269                 jsonw_end_array(rd->jw);
 270         return ret;
 271 }
 272
 273 int cmd_dev(struct rd *rd)
 274 {
 275         const struct rd_cmd cmds[] = {
 276                 { NULL,         dev_show },
 277                 { "show",       dev_show },
 278                 { "list",       dev_show },
 279                 { "help",       dev_help },
 280                 { 0 }
 281         };
 282
 283         return rd_exec_cmd(rd, cmds, "dev command");
 284 }