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         x(PCI_WRITE_END_PADDING, 36)
  58
  59         enum { RDMA_DEV_FLAGS(RDMA_BITMAP_ENUM) };
  60
  61         static const char * const
  62                 rdma_dev_names[] = { RDMA_DEV_FLAGS(RDMA_BITMAP_NAMES) };
  63         #undef RDMA_DEV_FLAGS
  64
  65         if (idx < ARRAY_SIZE(rdma_dev_names) && rdma_dev_names[idx])
  66                 return rdma_dev_names[idx];
  67         return "UNKNOWN";
  68 }
  69
  70 static void dev_print_caps(struct rd *rd, struct nlattr **tb)
  71 {
  72         uint64_t caps;
  73         uint32_t idx;
  74
  75         if (!tb[RDMA_NLDEV_ATTR_CAP_FLAGS])
  76                 return;
  77
  78         caps = mnl_attr_get_u64(tb[RDMA_NLDEV_ATTR_CAP_FLAGS]);
  79
  80         if (rd->json_output) {
  81                 jsonw_name(rd->jw, "caps");
  82                 jsonw_start_array(rd->jw);
  83         } else {
  84                 pr_out("\n    caps: <");
  85         }
  86         for (idx = 0; caps; idx++) {
  87                 if (caps & 0x1) {
  88                         if (rd->json_output) {
  89                                 jsonw_string(rd->jw, dev_caps_to_str(idx));
  90                         } else {
  91                                 pr_out("%s", dev_caps_to_str(idx));
  92                                 if (caps >> 0x1)
  93                                         pr_out(", ");
  94                         }
  95                 }
  96                 caps >>= 0x1;
  97         }
  98
  99         if (rd->json_output)
 100                 jsonw_end_array(rd->jw);
 101         else
 102                 pr_out(">");
 103 }
 104
 105 static void dev_print_fw(struct rd *rd, struct nlattr **tb)
 106 {
 107         const char *str;
 108         if (!tb[RDMA_NLDEV_ATTR_FW_VERSION])
 109                 return;
 110
 111         str = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_FW_VERSION]);
 112         if (rd->json_output)
 113                 jsonw_string_field(rd->jw, "fw", str);
 114         else
 115                 pr_out("fw %s ", str);
 116 }
 117
 118 static void dev_print_node_guid(struct rd *rd, struct nlattr **tb)
 119 {
 120         uint64_t node_guid;
 121         uint16_t vp[4];
 122         char str[32];
 123
 124         if (!tb[RDMA_NLDEV_ATTR_NODE_GUID])
 125                 return;
 126
 127         node_guid = mnl_attr_get_u64(tb[RDMA_NLDEV_ATTR_NODE_GUID]);
 128         memcpy(vp, &node_guid, sizeof(uint64_t));
 129         snprintf(str, 32, "%04x:%04x:%04x:%04x", vp[3], vp[2], vp[1], vp[0]);
 130         if (rd->json_output)
 131                 jsonw_string_field(rd->jw, "node_guid", str);
 132         else
 133                 pr_out("node_guid %s ", str);
 134 }
 135
 136 static void dev_print_sys_image_guid(struct rd *rd, struct nlattr **tb)
 137 {
 138         uint64_t sys_image_guid;
 139         uint16_t vp[4];
 140         char str[32];
 141
 142         if (!tb[RDMA_NLDEV_ATTR_SYS_IMAGE_GUID])
 143                 return;
 144
 145         sys_image_guid = mnl_attr_get_u64(tb[RDMA_NLDEV_ATTR_SYS_IMAGE_GUID]);
 146         memcpy(vp, &sys_image_guid, sizeof(uint64_t));
 147         snprintf(str, 32, "%04x:%04x:%04x:%04x", vp[3], vp[2], vp[1], vp[0]);
 148         if (rd->json_output)
 149                 jsonw_string_field(rd->jw, "sys_image_guid", str);
 150         else
 151                 pr_out("sys_image_guid %s ", str);
 152 }
 153
 154 static const char *node_type_to_str(uint8_t node_type)
 155 {
 156         static const char * const node_type_str[] = { "unknown", "ca",
 157                                                       "switch", "router",
 158                                                       "rnic", "usnic",
 159                                                       "usnic_dp" };
 160         if (node_type < ARRAY_SIZE(node_type_str))
 161                 return node_type_str[node_type];
 162         return "unknown";
 163 }
 164
 165 static void dev_print_node_type(struct rd *rd, struct nlattr **tb)
 166 {
 167         const char *node_str;
 168         uint8_t node_type;
 169
 170         if (!tb[RDMA_NLDEV_ATTR_DEV_NODE_TYPE])
 171                 return;
 172
 173         node_type = mnl_attr_get_u8(tb[RDMA_NLDEV_ATTR_DEV_NODE_TYPE]);
 174         node_str = node_type_to_str(node_type);
 175         if (rd->json_output)
 176                 jsonw_string_field(rd->jw, "node_type", node_str);
 177         else
 178                 pr_out("node_type %s ", node_str);
 179 }
 180
 181 static int dev_parse_cb(const struct nlmsghdr *nlh, void *data)
 182 {
 183         struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
 184         struct rd *rd = data;
 185         const char *name;
 186         uint32_t idx;
 187
 188         mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
 189         if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_DEV_NAME])
 190                 return MNL_CB_ERROR;
 191
 192         idx =  mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
 193         name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
 194         if (rd->json_output) {
 195                 jsonw_uint_field(rd->jw, "ifindex", idx);
 196                 jsonw_string_field(rd->jw, "ifname", name);
 197         } else {
 198                 pr_out("%u: %s: ", idx, name);
 199         }
 200
 201         dev_print_node_type(rd, tb);
 202         dev_print_fw(rd, tb);
 203         dev_print_node_guid(rd, tb);
 204         dev_print_sys_image_guid(rd, tb);
 205         if (rd->show_details)
 206                 dev_print_caps(rd, tb);
 207
 208         if (!rd->json_output)
 209                 pr_out("\n");
 210         return MNL_CB_OK;
 211 }
 212
 213 static int dev_no_args(struct rd *rd)
 214 {
 215         uint32_t seq;
 216         int ret;
 217
 218         rd_prepare_msg(rd, RDMA_NLDEV_CMD_GET,
 219                        &seq, (NLM_F_REQUEST | NLM_F_ACK));
 220         mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_ATTR_DEV_INDEX, rd->dev_idx);
 221         ret = rd_send_msg(rd);
 222         if (ret)
 223                 return ret;
 224
 225         if (rd->json_output)
 226                 jsonw_start_object(rd->jw);
 227         ret = rd_recv_msg(rd, dev_parse_cb, rd, seq);
 228         if (rd->json_output)
 229                 jsonw_end_object(rd->jw);
 230         return ret;
 231 }
 232
 233 static int dev_one_show(struct rd *rd)
 234 {
 235         const struct rd_cmd cmds[] = {
 236                 { NULL,         dev_no_args},
 237                 { 0 }
 238         };
 239
 240         return rd_exec_cmd(rd, cmds, "parameter");
 241 }
 242
 243 static int dev_show(struct rd *rd)
 244 {
 245         return rd_exec_dev(rd, dev_one_show);
 246 }
 247
 248 int cmd_dev(struct rd *rd)
 249 {
 250         const struct rd_cmd cmds[] = {
 251                 { NULL,         dev_show },
 252                 { "show",       dev_show },
 253                 { "list",       dev_show },
 254                 { "help",       dev_help },
 255                 { 0 }
 256         };
 257
 258         return rd_exec_cmd(rd, cmds, "dev command");
 259 }