drivers/infiniband/core/nldev.c

   1 /*
   2  * Copyright (c) 2017 Mellanox Technologies. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are met:
   6  *
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  * 3. Neither the names of the copyright holders nor the names of its
  13  *    contributors may be used to endorse or promote products derived from
  14  *    this software without specific prior written permission.
  15  *
  16  * Alternatively, this software may be distributed under the terms of the
  17  * GNU General Public License ("GPL") version 2 as published by the Free
  18  * Software Foundation.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  21  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  30  * POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <linux/module.h>
  34 #include <linux/pid.h>
  35 #include <linux/pid_namespace.h>
  36 #include <net/netlink.h>
  37 #include <rdma/rdma_cm.h>
  38 #include <rdma/rdma_netlink.h>
  39
  40 #include "core_priv.h"
  41 #include "cma_priv.h"
  42
  43 static const struct nla_policy nldev_policy[RDMA_NLDEV_ATTR_MAX] = {
  44         [RDMA_NLDEV_ATTR_DEV_INDEX]     = { .type = NLA_U32 },
  45         [RDMA_NLDEV_ATTR_DEV_NAME]      = { .type = NLA_NUL_STRING,
  46                                             .len = IB_DEVICE_NAME_MAX - 1},
  47         [RDMA_NLDEV_ATTR_PORT_INDEX]    = { .type = NLA_U32 },
  48         [RDMA_NLDEV_ATTR_FW_VERSION]    = { .type = NLA_NUL_STRING,
  49                                             .len = IB_FW_VERSION_NAME_MAX - 1},
  50         [RDMA_NLDEV_ATTR_NODE_GUID]     = { .type = NLA_U64 },
  51         [RDMA_NLDEV_ATTR_SYS_IMAGE_GUID] = { .type = NLA_U64 },
  52         [RDMA_NLDEV_ATTR_SUBNET_PREFIX] = { .type = NLA_U64 },
  53         [RDMA_NLDEV_ATTR_LID]           = { .type = NLA_U32 },
  54         [RDMA_NLDEV_ATTR_SM_LID]        = { .type = NLA_U32 },
  55         [RDMA_NLDEV_ATTR_LMC]           = { .type = NLA_U8 },
  56         [RDMA_NLDEV_ATTR_PORT_STATE]    = { .type = NLA_U8 },
  57         [RDMA_NLDEV_ATTR_PORT_PHYS_STATE] = { .type = NLA_U8 },
  58         [RDMA_NLDEV_ATTR_DEV_NODE_TYPE] = { .type = NLA_U8 },
  59         [RDMA_NLDEV_ATTR_RES_SUMMARY]   = { .type = NLA_NESTED },
  60         [RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY]     = { .type = NLA_NESTED },
  61         [RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_NAME] = { .type = NLA_NUL_STRING,
  62                                              .len = 16 },
  63         [RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_CURR] = { .type = NLA_U64 },
  64         [RDMA_NLDEV_ATTR_RES_QP]                = { .type = NLA_NESTED },
  65         [RDMA_NLDEV_ATTR_RES_QP_ENTRY]          = { .type = NLA_NESTED },
  66         [RDMA_NLDEV_ATTR_RES_LQPN]              = { .type = NLA_U32 },
  67         [RDMA_NLDEV_ATTR_RES_RQPN]              = { .type = NLA_U32 },
  68         [RDMA_NLDEV_ATTR_RES_RQ_PSN]            = { .type = NLA_U32 },
  69         [RDMA_NLDEV_ATTR_RES_SQ_PSN]            = { .type = NLA_U32 },
  70         [RDMA_NLDEV_ATTR_RES_PATH_MIG_STATE] = { .type = NLA_U8 },
  71         [RDMA_NLDEV_ATTR_RES_TYPE]              = { .type = NLA_U8 },
  72         [RDMA_NLDEV_ATTR_RES_STATE]             = { .type = NLA_U8 },
  73         [RDMA_NLDEV_ATTR_RES_PID]               = { .type = NLA_U32 },
  74         [RDMA_NLDEV_ATTR_RES_KERN_NAME]         = { .type = NLA_NUL_STRING,
  75                                                     .len = TASK_COMM_LEN },
  76         [RDMA_NLDEV_ATTR_RES_CM_ID]             = { .type = NLA_NESTED },
  77         [RDMA_NLDEV_ATTR_RES_CM_ID_ENTRY]       = { .type = NLA_NESTED },
  78         [RDMA_NLDEV_ATTR_RES_PS]                = { .type = NLA_U32 },
  79         [RDMA_NLDEV_ATTR_RES_SRC_ADDR]  = {
  80                         .len = sizeof(struct __kernel_sockaddr_storage) },
  81         [RDMA_NLDEV_ATTR_RES_DST_ADDR]  = {
  82                         .len = sizeof(struct __kernel_sockaddr_storage) },
  83         [RDMA_NLDEV_ATTR_RES_CQ]                = { .type = NLA_NESTED },
  84         [RDMA_NLDEV_ATTR_RES_CQ_ENTRY]          = { .type = NLA_NESTED },
  85         [RDMA_NLDEV_ATTR_RES_CQE]               = { .type = NLA_U32 },
  86         [RDMA_NLDEV_ATTR_RES_USECNT]            = { .type = NLA_U64 },
  87         [RDMA_NLDEV_ATTR_RES_POLL_CTX]          = { .type = NLA_U8 },
  88         [RDMA_NLDEV_ATTR_RES_MR]                = { .type = NLA_NESTED },
  89         [RDMA_NLDEV_ATTR_RES_MR_ENTRY]          = { .type = NLA_NESTED },
  90         [RDMA_NLDEV_ATTR_RES_RKEY]              = { .type = NLA_U32 },
  91         [RDMA_NLDEV_ATTR_RES_LKEY]              = { .type = NLA_U32 },
  92         [RDMA_NLDEV_ATTR_RES_IOVA]              = { .type = NLA_U64 },
  93         [RDMA_NLDEV_ATTR_RES_MRLEN]             = { .type = NLA_U64 },
  94         [RDMA_NLDEV_ATTR_RES_PD]                = { .type = NLA_NESTED },
  95         [RDMA_NLDEV_ATTR_RES_PD_ENTRY]          = { .type = NLA_NESTED },
  96         [RDMA_NLDEV_ATTR_RES_LOCAL_DMA_LKEY]    = { .type = NLA_U32 },
  97         [RDMA_NLDEV_ATTR_RES_UNSAFE_GLOBAL_RKEY] = { .type = NLA_U32 },
  98         [RDMA_NLDEV_ATTR_NDEV_INDEX]            = { .type = NLA_U32 },
  99         [RDMA_NLDEV_ATTR_NDEV_NAME]             = { .type = NLA_NUL_STRING,
 100                                                     .len = IFNAMSIZ },
 101         [RDMA_NLDEV_ATTR_DRIVER]                = { .type = NLA_NESTED },
 102         [RDMA_NLDEV_ATTR_DRIVER_ENTRY]          = { .type = NLA_NESTED },
 103         [RDMA_NLDEV_ATTR_DRIVER_STRING]         = { .type = NLA_NUL_STRING,
 104                                     .len = RDMA_NLDEV_ATTR_ENTRY_STRLEN },
 105         [RDMA_NLDEV_ATTR_DRIVER_PRINT_TYPE]     = { .type = NLA_U8 },
 106         [RDMA_NLDEV_ATTR_DRIVER_S32]            = { .type = NLA_S32 },
 107         [RDMA_NLDEV_ATTR_DRIVER_U32]            = { .type = NLA_U32 },
 108         [RDMA_NLDEV_ATTR_DRIVER_S64]            = { .type = NLA_S64 },
 109         [RDMA_NLDEV_ATTR_DRIVER_U64]            = { .type = NLA_U64 },
 110 };
 111
 112 static int put_driver_name_print_type(struct sk_buff *msg, const char *name,
 113                                       enum rdma_nldev_print_type print_type)
 114 {
 115         if (nla_put_string(msg, RDMA_NLDEV_ATTR_DRIVER_STRING, name))
 116                 return -EMSGSIZE;
 117         if (print_type != RDMA_NLDEV_PRINT_TYPE_UNSPEC &&
 118             nla_put_u8(msg, RDMA_NLDEV_ATTR_DRIVER_PRINT_TYPE, print_type))
 119                 return -EMSGSIZE;
 120
 121         return 0;
 122 }
 123
 124 static int _rdma_nl_put_driver_u32(struct sk_buff *msg, const char *name,
 125                                    enum rdma_nldev_print_type print_type,
 126                                    u32 value)
 127 {
 128         if (put_driver_name_print_type(msg, name, print_type))
 129                 return -EMSGSIZE;
 130         if (nla_put_u32(msg, RDMA_NLDEV_ATTR_DRIVER_U32, value))
 131                 return -EMSGSIZE;
 132
 133         return 0;
 134 }
 135
 136 static int _rdma_nl_put_driver_u64(struct sk_buff *msg, const char *name,
 137                                    enum rdma_nldev_print_type print_type,
 138                                    u64 value)
 139 {
 140         if (put_driver_name_print_type(msg, name, print_type))
 141                 return -EMSGSIZE;
 142         if (nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_DRIVER_U64, value,
 143                               RDMA_NLDEV_ATTR_PAD))
 144                 return -EMSGSIZE;
 145
 146         return 0;
 147 }
 148
 149 int rdma_nl_put_driver_u32(struct sk_buff *msg, const char *name, u32 value)
 150 {
 151         return _rdma_nl_put_driver_u32(msg, name, RDMA_NLDEV_PRINT_TYPE_UNSPEC,
 152                                        value);
 153 }
 154 EXPORT_SYMBOL(rdma_nl_put_driver_u32);
 155
 156 int rdma_nl_put_driver_u32_hex(struct sk_buff *msg, const char *name,
 157                                u32 value)
 158 {
 159         return _rdma_nl_put_driver_u32(msg, name, RDMA_NLDEV_PRINT_TYPE_HEX,
 160                                        value);
 161 }
 162 EXPORT_SYMBOL(rdma_nl_put_driver_u32_hex);
 163
 164 int rdma_nl_put_driver_u64(struct sk_buff *msg, const char *name, u64 value)
 165 {
 166         return _rdma_nl_put_driver_u64(msg, name, RDMA_NLDEV_PRINT_TYPE_UNSPEC,
 167                                        value);
 168 }
 169 EXPORT_SYMBOL(rdma_nl_put_driver_u64);
 170
 171 int rdma_nl_put_driver_u64_hex(struct sk_buff *msg, const char *name, u64 value)
 172 {
 173         return _rdma_nl_put_driver_u64(msg, name, RDMA_NLDEV_PRINT_TYPE_HEX,
 174                                        value);
 175 }
 176 EXPORT_SYMBOL(rdma_nl_put_driver_u64_hex);
 177
 178 static int fill_nldev_handle(struct sk_buff *msg, struct ib_device *device)
 179 {
 180         if (nla_put_u32(msg, RDMA_NLDEV_ATTR_DEV_INDEX, device->index))
 181                 return -EMSGSIZE;
 182         if (nla_put_string(msg, RDMA_NLDEV_ATTR_DEV_NAME, device->name))
 183                 return -EMSGSIZE;
 184
 185         return 0;
 186 }
 187
 188 static int fill_dev_info(struct sk_buff *msg, struct ib_device *device)
 189 {
 190         char fw[IB_FW_VERSION_NAME_MAX];
 191
 192         if (fill_nldev_handle(msg, device))
 193                 return -EMSGSIZE;
 194
 195         if (nla_put_u32(msg, RDMA_NLDEV_ATTR_PORT_INDEX, rdma_end_port(device)))
 196                 return -EMSGSIZE;
 197
 198         BUILD_BUG_ON(sizeof(device->attrs.device_cap_flags) != sizeof(u64));
 199         if (nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_CAP_FLAGS,
 200                               device->attrs.device_cap_flags,
 201                               RDMA_NLDEV_ATTR_PAD))
 202                 return -EMSGSIZE;
 203
 204         ib_get_device_fw_str(device, fw);
 205         /* Device without FW has strlen(fw) = 0 */
 206         if (strlen(fw) && nla_put_string(msg, RDMA_NLDEV_ATTR_FW_VERSION, fw))
 207                 return -EMSGSIZE;
 208
 209         if (nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_NODE_GUID,
 210                               be64_to_cpu(device->node_guid),
 211                               RDMA_NLDEV_ATTR_PAD))
 212                 return -EMSGSIZE;
 213         if (nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_SYS_IMAGE_GUID,
 214                               be64_to_cpu(device->attrs.sys_image_guid),
 215                               RDMA_NLDEV_ATTR_PAD))
 216                 return -EMSGSIZE;
 217         if (nla_put_u8(msg, RDMA_NLDEV_ATTR_DEV_NODE_TYPE, device->node_type))
 218                 return -EMSGSIZE;
 219         return 0;
 220 }
 221
 222 static int fill_port_info(struct sk_buff *msg,
 223                           struct ib_device *device, u32 port,
 224                           const struct net *net)
 225 {
 226         struct net_device *netdev = NULL;
 227         struct ib_port_attr attr;
 228         int ret;
 229
 230         if (fill_nldev_handle(msg, device))
 231                 return -EMSGSIZE;
 232
 233         if (nla_put_u32(msg, RDMA_NLDEV_ATTR_PORT_INDEX, port))
 234                 return -EMSGSIZE;
 235
 236         ret = ib_query_port(device, port, &attr);
 237         if (ret)
 238                 return ret;
 239
 240         if (rdma_protocol_ib(device, port)) {
 241                 BUILD_BUG_ON(sizeof(attr.port_cap_flags) > sizeof(u64));
 242                 if (nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_CAP_FLAGS,
 243                                       (u64)attr.port_cap_flags,
 244                                       RDMA_NLDEV_ATTR_PAD))
 245                         return -EMSGSIZE;
 246                 if (nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_SUBNET_PREFIX,
 247                                       attr.subnet_prefix, RDMA_NLDEV_ATTR_PAD))
 248                         return -EMSGSIZE;
 249                 if (nla_put_u32(msg, RDMA_NLDEV_ATTR_LID, attr.lid))
 250                         return -EMSGSIZE;
 251                 if (nla_put_u32(msg, RDMA_NLDEV_ATTR_SM_LID, attr.sm_lid))
 252                         return -EMSGSIZE;
 253                 if (nla_put_u8(msg, RDMA_NLDEV_ATTR_LMC, attr.lmc))
 254                         return -EMSGSIZE;
 255         }
 256         if (nla_put_u8(msg, RDMA_NLDEV_ATTR_PORT_STATE, attr.state))
 257                 return -EMSGSIZE;
 258         if (nla_put_u8(msg, RDMA_NLDEV_ATTR_PORT_PHYS_STATE, attr.phys_state))
 259                 return -EMSGSIZE;
 260
 261         if (device->get_netdev)
 262                 netdev = device->get_netdev(device, port);
 263
 264         if (netdev && net_eq(dev_net(netdev), net)) {
 265                 ret = nla_put_u32(msg,
 266                                   RDMA_NLDEV_ATTR_NDEV_INDEX, netdev->ifindex);
 267                 if (ret)
 268                         goto out;
 269                 ret = nla_put_string(msg,
 270                                      RDMA_NLDEV_ATTR_NDEV_NAME, netdev->name);
 271         }
 272
 273 out:
 274         if (netdev)
 275                 dev_put(netdev);
 276         return ret;
 277 }
 278
 279 static int fill_res_info_entry(struct sk_buff *msg,
 280                                const char *name, u64 curr)
 281 {
 282         struct nlattr *entry_attr;
 283
 284         entry_attr = nla_nest_start(msg, RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY);
 285         if (!entry_attr)
 286                 return -EMSGSIZE;
 287
 288         if (nla_put_string(msg, RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_NAME, name))
 289                 goto err;
 290         if (nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_CURR, curr,
 291                               RDMA_NLDEV_ATTR_PAD))
 292                 goto err;
 293
 294         nla_nest_end(msg, entry_attr);
 295         return 0;
 296
 297 err:
 298         nla_nest_cancel(msg, entry_attr);
 299         return -EMSGSIZE;
 300 }
 301
 302 static int fill_res_info(struct sk_buff *msg, struct ib_device *device)
 303 {
 304         static const char * const names[RDMA_RESTRACK_MAX] = {
 305                 [RDMA_RESTRACK_PD] = "pd",
 306                 [RDMA_RESTRACK_CQ] = "cq",
 307                 [RDMA_RESTRACK_QP] = "qp",
 308                 [RDMA_RESTRACK_CM_ID] = "cm_id",
 309                 [RDMA_RESTRACK_MR] = "mr",
 310         };
 311
 312         struct rdma_restrack_root *res = &device->res;
 313         struct nlattr *table_attr;
 314         int ret, i, curr;
 315
 316         if (fill_nldev_handle(msg, device))
 317                 return -EMSGSIZE;
 318
 319         table_attr = nla_nest_start(msg, RDMA_NLDEV_ATTR_RES_SUMMARY);
 320         if (!table_attr)
 321                 return -EMSGSIZE;
 322
 323         for (i = 0; i < RDMA_RESTRACK_MAX; i++) {
 324                 if (!names[i])
 325                         continue;
 326                 curr = rdma_restrack_count(res, i, task_active_pid_ns(current));
 327                 ret = fill_res_info_entry(msg, names[i], curr);
 328                 if (ret)
 329                         goto err;
 330         }
 331
 332         nla_nest_end(msg, table_attr);
 333         return 0;
 334
 335 err:
 336         nla_nest_cancel(msg, table_attr);
 337         return ret;
 338 }
 339
 340 static int fill_res_name_pid(struct sk_buff *msg,
 341                              struct rdma_restrack_entry *res)
 342 {
 343         /*
 344          * For user resources, user is should read /proc/PID/comm to get the
 345          * name of the task file.
 346          */
 347         if (rdma_is_kernel_res(res)) {
 348                 if (nla_put_string(msg, RDMA_NLDEV_ATTR_RES_KERN_NAME,
 349                     res->kern_name))
 350                         return -EMSGSIZE;
 351         } else {
 352                 if (nla_put_u32(msg, RDMA_NLDEV_ATTR_RES_PID,
 353                     task_pid_vnr(res->task)))
 354                         return -EMSGSIZE;
 355         }
 356         return 0;
 357 }
 358
 359 static int fill_res_qp_entry(struct sk_buff *msg, struct netlink_callback *cb,
 360                              struct rdma_restrack_entry *res, uint32_t port)
 361 {
 362         struct ib_qp *qp = container_of(res, struct ib_qp, res);
 363         struct rdma_restrack_root *resroot = &qp->device->res;
 364         struct ib_qp_init_attr qp_init_attr;
 365         struct nlattr *entry_attr;
 366         struct ib_qp_attr qp_attr;
 367         int ret;
 368
 369         ret = ib_query_qp(qp, &qp_attr, 0, &qp_init_attr);
 370         if (ret)
 371                 return ret;
 372
 373         if (port && port != qp_attr.port_num)
 374                 return 0;
 375
 376         entry_attr = nla_nest_start(msg, RDMA_NLDEV_ATTR_RES_QP_ENTRY);
 377         if (!entry_attr)
 378                 goto out;
 379
 380         /* In create_qp() port is not set yet */
 381         if (qp_attr.port_num &&
 382             nla_put_u32(msg, RDMA_NLDEV_ATTR_PORT_INDEX, qp_attr.port_num))
 383                 goto err;
 384
 385         if (nla_put_u32(msg, RDMA_NLDEV_ATTR_RES_LQPN, qp->qp_num))
 386                 goto err;
 387         if (qp->qp_type == IB_QPT_RC || qp->qp_type == IB_QPT_UC) {
 388                 if (nla_put_u32(msg, RDMA_NLDEV_ATTR_RES_RQPN,
 389                                 qp_attr.dest_qp_num))
 390                         goto err;
 391                 if (nla_put_u32(msg, RDMA_NLDEV_ATTR_RES_RQ_PSN,
 392                                 qp_attr.rq_psn))
 393                         goto err;
 394         }
 395
 396         if (nla_put_u32(msg, RDMA_NLDEV_ATTR_RES_SQ_PSN, qp_attr.sq_psn))
 397                 goto err;
 398
 399         if (qp->qp_type == IB_QPT_RC || qp->qp_type == IB_QPT_UC ||
 400             qp->qp_type == IB_QPT_XRC_INI || qp->qp_type == IB_QPT_XRC_TGT) {
 401                 if (nla_put_u8(msg, RDMA_NLDEV_ATTR_RES_PATH_MIG_STATE,
 402                                qp_attr.path_mig_state))
 403                         goto err;
 404         }
 405         if (nla_put_u8(msg, RDMA_NLDEV_ATTR_RES_TYPE, qp->qp_type))
 406                 goto err;
 407         if (nla_put_u8(msg, RDMA_NLDEV_ATTR_RES_STATE, qp_attr.qp_state))
 408                 goto err;
 409
 410         if (fill_res_name_pid(msg, res))
 411                 goto err;
 412
 413         if (resroot->fill_res_entry(msg, res))
 414                 goto err;
 415
 416         nla_nest_end(msg, entry_attr);
 417         return 0;
 418
 419 err:
 420         nla_nest_cancel(msg, entry_attr);
 421 out:
 422         return -EMSGSIZE;
 423 }
 424
 425 static int fill_res_cm_id_entry(struct sk_buff *msg,
 426                                 struct netlink_callback *cb,
 427                                 struct rdma_restrack_entry *res, uint32_t port)
 428 {
 429         struct rdma_id_private *id_priv =
 430                                 container_of(res, struct rdma_id_private, res);
 431         struct rdma_restrack_root *resroot = &id_priv->id.device->res;
 432         struct rdma_cm_id *cm_id = &id_priv->id;
 433         struct nlattr *entry_attr;
 434
 435         if (port && port != cm_id->port_num)
 436                 return 0;
 437
 438         entry_attr = nla_nest_start(msg, RDMA_NLDEV_ATTR_RES_CM_ID_ENTRY);
 439         if (!entry_attr)
 440                 goto out;
 441
 442         if (cm_id->port_num &&
 443             nla_put_u32(msg, RDMA_NLDEV_ATTR_PORT_INDEX, cm_id->port_num))
 444                 goto err;
 445
 446         if (id_priv->qp_num) {
 447                 if (nla_put_u32(msg, RDMA_NLDEV_ATTR_RES_LQPN, id_priv->qp_num))
 448                         goto err;
 449                 if (nla_put_u8(msg, RDMA_NLDEV_ATTR_RES_TYPE, cm_id->qp_type))
 450                         goto err;
 451         }
 452
 453         if (nla_put_u32(msg, RDMA_NLDEV_ATTR_RES_PS, cm_id->ps))
 454                 goto err;
 455
 456         if (nla_put_u8(msg, RDMA_NLDEV_ATTR_RES_STATE, id_priv->state))
 457                 goto err;
 458
 459         if (cm_id->route.addr.src_addr.ss_family &&
 460             nla_put(msg, RDMA_NLDEV_ATTR_RES_SRC_ADDR,
 461                     sizeof(cm_id->route.addr.src_addr),
 462                     &cm_id->route.addr.src_addr))
 463                 goto err;
 464         if (cm_id->route.addr.dst_addr.ss_family &&
 465             nla_put(msg, RDMA_NLDEV_ATTR_RES_DST_ADDR,
 466                     sizeof(cm_id->route.addr.dst_addr),
 467                     &cm_id->route.addr.dst_addr))
 468                 goto err;
 469
 470         if (fill_res_name_pid(msg, res))
 471                 goto err;
 472
 473         if (resroot->fill_res_entry(msg, res))
 474                 goto err;
 475
 476         nla_nest_end(msg, entry_attr);
 477         return 0;
 478
 479 err:
 480         nla_nest_cancel(msg, entry_attr);
 481 out:
 482         return -EMSGSIZE;
 483 }
 484
 485 static int fill_res_cq_entry(struct sk_buff *msg, struct netlink_callback *cb,
 486                              struct rdma_restrack_entry *res, uint32_t port)
 487 {
 488         struct ib_cq *cq = container_of(res, struct ib_cq, res);
 489         struct rdma_restrack_root *resroot = &cq->device->res;
 490         struct nlattr *entry_attr;
 491
 492         entry_attr = nla_nest_start(msg, RDMA_NLDEV_ATTR_RES_CQ_ENTRY);
 493         if (!entry_attr)
 494                 goto out;
 495
 496         if (nla_put_u32(msg, RDMA_NLDEV_ATTR_RES_CQE, cq->cqe))
 497                 goto err;
 498         if (nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_RES_USECNT,
 499                               atomic_read(&cq->usecnt), RDMA_NLDEV_ATTR_PAD))
 500                 goto err;
 501
 502         /* Poll context is only valid for kernel CQs */
 503         if (rdma_is_kernel_res(res) &&
 504             nla_put_u8(msg, RDMA_NLDEV_ATTR_RES_POLL_CTX, cq->poll_ctx))
 505                 goto err;
 506
 507         if (fill_res_name_pid(msg, res))
 508                 goto err;
 509
 510         if (resroot->fill_res_entry(msg, res))
 511                 goto err;
 512
 513         nla_nest_end(msg, entry_attr);
 514         return 0;
 515
 516 err:
 517         nla_nest_cancel(msg, entry_attr);
 518 out:
 519         return -EMSGSIZE;
 520 }
 521
 522 static int fill_res_mr_entry(struct sk_buff *msg, struct netlink_callback *cb,
 523                              struct rdma_restrack_entry *res, uint32_t port)
 524 {
 525         struct ib_mr *mr = container_of(res, struct ib_mr, res);
 526         struct rdma_restrack_root *resroot = &mr->pd->device->res;
 527         struct nlattr *entry_attr;
 528
 529         entry_attr = nla_nest_start(msg, RDMA_NLDEV_ATTR_RES_MR_ENTRY);
 530         if (!entry_attr)
 531                 goto out;
 532
 533         if (netlink_capable(cb->skb, CAP_NET_ADMIN)) {
 534                 if (nla_put_u32(msg, RDMA_NLDEV_ATTR_RES_RKEY, mr->rkey))
 535                         goto err;
 536                 if (nla_put_u32(msg, RDMA_NLDEV_ATTR_RES_LKEY, mr->lkey))
 537                         goto err;
 538         }
 539
 540         if (nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_RES_MRLEN, mr->length,
 541                               RDMA_NLDEV_ATTR_PAD))
 542                 goto err;
 543
 544         if (fill_res_name_pid(msg, res))
 545                 goto err;
 546
 547         if (resroot->fill_res_entry(msg, res))
 548                 goto err;
 549
 550         nla_nest_end(msg, entry_attr);
 551         return 0;
 552
 553 err:
 554         nla_nest_cancel(msg, entry_attr);
 555 out:
 556         return -EMSGSIZE;
 557 }
 558
 559 static int fill_res_pd_entry(struct sk_buff *msg, struct netlink_callback *cb,
 560                              struct rdma_restrack_entry *res, uint32_t port)
 561 {
 562         struct ib_pd *pd = container_of(res, struct ib_pd, res);
 563         struct rdma_restrack_root *resroot = &pd->device->res;
 564         struct nlattr *entry_attr;
 565
 566         entry_attr = nla_nest_start(msg, RDMA_NLDEV_ATTR_RES_PD_ENTRY);
 567         if (!entry_attr)
 568                 goto out;
 569
 570         if (netlink_capable(cb->skb, CAP_NET_ADMIN)) {
 571                 if (nla_put_u32(msg, RDMA_NLDEV_ATTR_RES_LOCAL_DMA_LKEY,
 572                                 pd->local_dma_lkey))
 573                         goto err;
 574                 if ((pd->flags & IB_PD_UNSAFE_GLOBAL_RKEY) &&
 575                     nla_put_u32(msg, RDMA_NLDEV_ATTR_RES_UNSAFE_GLOBAL_RKEY,
 576                                 pd->unsafe_global_rkey))
 577                         goto err;
 578         }
 579         if (nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_RES_USECNT,
 580                               atomic_read(&pd->usecnt), RDMA_NLDEV_ATTR_PAD))
 581                 goto err;
 582
 583         if (fill_res_name_pid(msg, res))
 584                 goto err;
 585
 586         if (resroot->fill_res_entry(msg, res))
 587                 goto err;
 588
 589         nla_nest_end(msg, entry_attr);
 590         return 0;
 591
 592 err:
 593         nla_nest_cancel(msg, entry_attr);
 594 out:
 595         return -EMSGSIZE;
 596 }
 597
 598 static int nldev_get_doit(struct sk_buff *skb, struct nlmsghdr *nlh,
 599                           struct netlink_ext_ack *extack)
 600 {
 601         struct nlattr *tb[RDMA_NLDEV_ATTR_MAX];
 602         struct ib_device *device;
 603         struct sk_buff *msg;
 604         u32 index;
 605         int err;
 606
 607         err = nlmsg_parse(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1,
 608                           nldev_policy, extack);
 609         if (err || !tb[RDMA_NLDEV_ATTR_DEV_INDEX])
 610                 return -EINVAL;
 611
 612         index = nla_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
 613
 614         device = ib_device_get_by_index(index);
 615         if (!device)
 616                 return -EINVAL;
 617
 618         msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 619         if (!msg) {
 620                 err = -ENOMEM;
 621                 goto err;
 622         }
 623
 624         nlh = nlmsg_put(msg, NETLINK_CB(skb).portid, nlh->nlmsg_seq,
 625                         RDMA_NL_GET_TYPE(RDMA_NL_NLDEV, RDMA_NLDEV_CMD_GET),
 626                         0, 0);
 627
 628         err = fill_dev_info(msg, device);
 629         if (err)
 630                 goto err_free;
 631
 632         nlmsg_end(msg, nlh);
 633
 634         put_device(&device->dev);
 635         return rdma_nl_unicast(msg, NETLINK_CB(skb).portid);
 636
 637 err_free:
 638         nlmsg_free(msg);
 639 err:
 640         put_device(&device->dev);
 641         return err;
 642 }
 643
 644 static int _nldev_get_dumpit(struct ib_device *device,
 645                              struct sk_buff *skb,
 646                              struct netlink_callback *cb,
 647                              unsigned int idx)
 648 {
 649         int start = cb->args[0];
 650         struct nlmsghdr *nlh;
 651
 652         if (idx < start)
 653                 return 0;
 654
 655         nlh = nlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq,
 656                         RDMA_NL_GET_TYPE(RDMA_NL_NLDEV, RDMA_NLDEV_CMD_GET),
 657                         0, NLM_F_MULTI);
 658
 659         if (fill_dev_info(skb, device)) {
 660                 nlmsg_cancel(skb, nlh);
 661                 goto out;
 662         }
 663
 664         nlmsg_end(skb, nlh);
 665
 666         idx++;
 667
 668 out:    cb->args[0] = idx;
 669         return skb->len;
 670 }
 671
 672 static int nldev_get_dumpit(struct sk_buff *skb, struct netlink_callback *cb)
 673 {
 674         /*
 675          * There is no need to take lock, because
 676          * we are relying on ib_core's lists_rwsem
 677          */
 678         return ib_enum_all_devs(_nldev_get_dumpit, skb, cb);
 679 }
 680
 681 static int nldev_port_get_doit(struct sk_buff *skb, struct nlmsghdr *nlh,
 682                                struct netlink_ext_ack *extack)
 683 {
 684         struct nlattr *tb[RDMA_NLDEV_ATTR_MAX];
 685         struct ib_device *device;
 686         struct sk_buff *msg;
 687         u32 index;
 688         u32 port;
 689         int err;
 690
 691         err = nlmsg_parse(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1,
 692                           nldev_policy, extack);
 693         if (err ||
 694             !tb[RDMA_NLDEV_ATTR_DEV_INDEX] ||
 695             !tb[RDMA_NLDEV_ATTR_PORT_INDEX])
 696                 return -EINVAL;
 697
 698         index = nla_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
 699         device = ib_device_get_by_index(index);
 700         if (!device)
 701                 return -EINVAL;
 702
 703         port = nla_get_u32(tb[RDMA_NLDEV_ATTR_PORT_INDEX]);
 704         if (!rdma_is_port_valid(device, port)) {
 705                 err = -EINVAL;
 706                 goto err;
 707         }
 708
 709         msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 710         if (!msg) {
 711                 err = -ENOMEM;
 712                 goto err;
 713         }
 714
 715         nlh = nlmsg_put(msg, NETLINK_CB(skb).portid, nlh->nlmsg_seq,
 716                         RDMA_NL_GET_TYPE(RDMA_NL_NLDEV, RDMA_NLDEV_CMD_GET),
 717                         0, 0);
 718
 719         err = fill_port_info(msg, device, port, sock_net(skb->sk));
 720         if (err)
 721                 goto err_free;
 722
 723         nlmsg_end(msg, nlh);
 724         put_device(&device->dev);
 725
 726         return rdma_nl_unicast(msg, NETLINK_CB(skb).portid);
 727
 728 err_free:
 729         nlmsg_free(msg);
 730 err:
 731         put_device(&device->dev);
 732         return err;
 733 }
 734
 735 static int nldev_port_get_dumpit(struct sk_buff *skb,
 736                                  struct netlink_callback *cb)
 737 {
 738         struct nlattr *tb[RDMA_NLDEV_ATTR_MAX];
 739         struct ib_device *device;
 740         int start = cb->args[0];
 741         struct nlmsghdr *nlh;
 742         u32 idx = 0;
 743         u32 ifindex;
 744         int err;
 745         u32 p;
 746
 747         err = nlmsg_parse(cb->nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1,
 748                           nldev_policy, NULL);
 749         if (err || !tb[RDMA_NLDEV_ATTR_DEV_INDEX])
 750                 return -EINVAL;
 751
 752         ifindex = nla_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
 753         device = ib_device_get_by_index(ifindex);
 754         if (!device)
 755                 return -EINVAL;
 756
 757         for (p = rdma_start_port(device); p <= rdma_end_port(device); ++p) {
 758                 /*
 759                  * The dumpit function returns all information from specific
 760                  * index. This specific index is taken from the netlink
 761                  * messages request sent by user and it is available
 762                  * in cb->args[0].
 763                  *
 764                  * Usually, the user doesn't fill this field and it causes
 765                  * to return everything.
 766                  *
 767                  */
 768                 if (idx < start) {
 769                         idx++;
 770                         continue;
 771                 }
 772
 773                 nlh = nlmsg_put(skb, NETLINK_CB(cb->skb).portid,
 774                                 cb->nlh->nlmsg_seq,
 775                                 RDMA_NL_GET_TYPE(RDMA_NL_NLDEV,
 776                                                  RDMA_NLDEV_CMD_PORT_GET),
 777                                 0, NLM_F_MULTI);
 778
 779                 if (fill_port_info(skb, device, p, sock_net(skb->sk))) {
 780                         nlmsg_cancel(skb, nlh);
 781                         goto out;
 782                 }
 783                 idx++;
 784                 nlmsg_end(skb, nlh);
 785         }
 786
 787 out:
 788         put_device(&device->dev);
 789         cb->args[0] = idx;
 790         return skb->len;
 791 }
 792
 793 static int nldev_res_get_doit(struct sk_buff *skb, struct nlmsghdr *nlh,
 794                               struct netlink_ext_ack *extack)
 795 {
 796         struct nlattr *tb[RDMA_NLDEV_ATTR_MAX];
 797         struct ib_device *device;
 798         struct sk_buff *msg;
 799         u32 index;
 800         int ret;
 801
 802         ret = nlmsg_parse(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1,
 803                           nldev_policy, extack);
 804         if (ret || !tb[RDMA_NLDEV_ATTR_DEV_INDEX])
 805                 return -EINVAL;
 806
 807         index = nla_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
 808         device = ib_device_get_by_index(index);
 809         if (!device)
 810                 return -EINVAL;
 811
 812         msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 813         if (!msg) {
 814                 ret = -ENOMEM;
 815                 goto err;
 816         }
 817
 818         nlh = nlmsg_put(msg, NETLINK_CB(skb).portid, nlh->nlmsg_seq,
 819                         RDMA_NL_GET_TYPE(RDMA_NL_NLDEV, RDMA_NLDEV_CMD_RES_GET),
 820                         0, 0);
 821
 822         ret = fill_res_info(msg, device);
 823         if (ret)
 824                 goto err_free;
 825
 826         nlmsg_end(msg, nlh);
 827         put_device(&device->dev);
 828         return rdma_nl_unicast(msg, NETLINK_CB(skb).portid);
 829
 830 err_free:
 831         nlmsg_free(msg);
 832 err:
 833         put_device(&device->dev);
 834         return ret;
 835 }
 836
 837 static int _nldev_res_get_dumpit(struct ib_device *device,
 838                                  struct sk_buff *skb,
 839                                  struct netlink_callback *cb,
 840                                  unsigned int idx)
 841 {
 842         int start = cb->args[0];
 843         struct nlmsghdr *nlh;
 844
 845         if (idx < start)
 846                 return 0;
 847
 848         nlh = nlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq,
 849                         RDMA_NL_GET_TYPE(RDMA_NL_NLDEV, RDMA_NLDEV_CMD_RES_GET),
 850                         0, NLM_F_MULTI);
 851
 852         if (fill_res_info(skb, device)) {
 853                 nlmsg_cancel(skb, nlh);
 854                 goto out;
 855         }
 856
 857         nlmsg_end(skb, nlh);
 858
 859         idx++;
 860
 861 out:
 862         cb->args[0] = idx;
 863         return skb->len;
 864 }
 865
 866 static int nldev_res_get_dumpit(struct sk_buff *skb,
 867                                 struct netlink_callback *cb)
 868 {
 869         return ib_enum_all_devs(_nldev_res_get_dumpit, skb, cb);
 870 }
 871
 872 struct nldev_fill_res_entry {
 873         int (*fill_res_func)(struct sk_buff *msg, struct netlink_callback *cb,
 874                              struct rdma_restrack_entry *res, u32 port);
 875         enum rdma_nldev_attr nldev_attr;
 876         enum rdma_nldev_command nldev_cmd;
 877 };
 878
 879 static const struct nldev_fill_res_entry fill_entries[RDMA_RESTRACK_MAX] = {
 880         [RDMA_RESTRACK_QP] = {
 881                 .fill_res_func = fill_res_qp_entry,
 882                 .nldev_cmd = RDMA_NLDEV_CMD_RES_QP_GET,
 883                 .nldev_attr = RDMA_NLDEV_ATTR_RES_QP,
 884         },
 885         [RDMA_RESTRACK_CM_ID] = {
 886                 .fill_res_func = fill_res_cm_id_entry,
 887                 .nldev_cmd = RDMA_NLDEV_CMD_RES_CM_ID_GET,
 888                 .nldev_attr = RDMA_NLDEV_ATTR_RES_CM_ID,
 889         },
 890         [RDMA_RESTRACK_CQ] = {
 891                 .fill_res_func = fill_res_cq_entry,
 892                 .nldev_cmd = RDMA_NLDEV_CMD_RES_CQ_GET,
 893                 .nldev_attr = RDMA_NLDEV_ATTR_RES_CQ,
 894         },
 895         [RDMA_RESTRACK_MR] = {
 896                 .fill_res_func = fill_res_mr_entry,
 897                 .nldev_cmd = RDMA_NLDEV_CMD_RES_MR_GET,
 898                 .nldev_attr = RDMA_NLDEV_ATTR_RES_MR,
 899         },
 900         [RDMA_RESTRACK_PD] = {
 901                 .fill_res_func = fill_res_pd_entry,
 902                 .nldev_cmd = RDMA_NLDEV_CMD_RES_PD_GET,
 903                 .nldev_attr = RDMA_NLDEV_ATTR_RES_PD,
 904         },
 905 };
 906
 907 static int res_get_common_dumpit(struct sk_buff *skb,
 908                                  struct netlink_callback *cb,
 909                                  enum rdma_restrack_type res_type)
 910 {
 911         const struct nldev_fill_res_entry *fe = &fill_entries[res_type];
 912         struct nlattr *tb[RDMA_NLDEV_ATTR_MAX];
 913         struct rdma_restrack_entry *res;
 914         int err, ret = 0, idx = 0;
 915         struct nlattr *table_attr;
 916         struct ib_device *device;
 917         int start = cb->args[0];
 918         struct nlmsghdr *nlh;
 919         u32 index, port = 0;
 920         bool filled = false;
 921
 922         err = nlmsg_parse(cb->nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1,
 923                           nldev_policy, NULL);
 924         /*
 925          * Right now, we are expecting the device index to get res information,
 926          * but it is possible to extend this code to return all devices in
 927          * one shot by checking the existence of RDMA_NLDEV_ATTR_DEV_INDEX.
 928          * if it doesn't exist, we will iterate over all devices.
 929          *
 930          * But it is not needed for now.
 931          */
 932         if (err || !tb[RDMA_NLDEV_ATTR_DEV_INDEX])
 933                 return -EINVAL;
 934
 935         index = nla_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
 936         device = ib_device_get_by_index(index);
 937         if (!device)
 938                 return -EINVAL;
 939
 940         /*
 941          * If no PORT_INDEX is supplied, we will return all QPs from that device
 942          */
 943         if (tb[RDMA_NLDEV_ATTR_PORT_INDEX]) {
 944                 port = nla_get_u32(tb[RDMA_NLDEV_ATTR_PORT_INDEX]);
 945                 if (!rdma_is_port_valid(device, port)) {
 946                         ret = -EINVAL;
 947                         goto err_index;
 948                 }
 949         }
 950
 951         nlh = nlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq,
 952                         RDMA_NL_GET_TYPE(RDMA_NL_NLDEV, fe->nldev_cmd),
 953                         0, NLM_F_MULTI);
 954
 955         if (fill_nldev_handle(skb, device)) {
 956                 ret = -EMSGSIZE;
 957                 goto err;
 958         }
 959
 960         table_attr = nla_nest_start(skb, fe->nldev_attr);
 961         if (!table_attr) {
 962                 ret = -EMSGSIZE;
 963                 goto err;
 964         }
 965
 966         down_read(&device->res.rwsem);
 967         hash_for_each_possible(device->res.hash, res, node, res_type) {
 968                 if (idx < start)
 969                         goto next;
 970
 971                 if ((rdma_is_kernel_res(res) &&
 972                      task_active_pid_ns(current) != &init_pid_ns) ||
 973                     (!rdma_is_kernel_res(res) && task_active_pid_ns(current) !=
 974                      task_active_pid_ns(res->task)))
 975                         /*
 976                          * 1. Kern resources should be visible in init
 977                          *    namspace only
 978                          * 2. Present only resources visible in the current
 979                          *    namespace
 980                          */
 981                         goto next;
 982
 983                 if (!rdma_restrack_get(res))
 984                         /*
 985                          * Resource is under release now, but we are not
 986                          * relesing lock now, so it will be released in
 987                          * our next pass, once we will get ->next pointer.
 988                          */
 989                         goto next;
 990
 991                 filled = true;
 992
 993                 up_read(&device->res.rwsem);
 994                 ret = fe->fill_res_func(skb, cb, res, port);
 995                 down_read(&device->res.rwsem);
 996                 /*
 997                  * Return resource back, but it won't be released till
 998                  * the &device->res.rwsem will be released for write.
 999                  */
1000                 rdma_restrack_put(res);
1001
1002                 if (ret == -EMSGSIZE)
1003                         /*
1004                          * There is a chance to optimize here.
1005                          * It can be done by using list_prepare_entry
1006                          * and list_for_each_entry_continue afterwards.
1007                          */
1008                         break;
1009                 if (ret)
1010                         goto res_err;
1011 next:           idx++;
1012         }
1013         up_read(&device->res.rwsem);
1014
1015         nla_nest_end(skb, table_attr);
1016         nlmsg_end(skb, nlh);
1017         cb->args[0] = idx;
1018
1019         /*
1020          * No more entries to fill, cancel the message and
1021          * return 0 to mark end of dumpit.
1022          */
1023         if (!filled)
1024                 goto err;
1025
1026         put_device(&device->dev);
1027         return skb->len;
1028
1029 res_err:
1030         nla_nest_cancel(skb, table_attr);
1031         up_read(&device->res.rwsem);
1032
1033 err:
1034         nlmsg_cancel(skb, nlh);
1035
1036 err_index:
1037         put_device(&device->dev);
1038         return ret;
1039 }
1040
1041 static int nldev_res_get_qp_dumpit(struct sk_buff *skb,
1042                                    struct netlink_callback *cb)
1043 {
1044         return res_get_common_dumpit(skb, cb, RDMA_RESTRACK_QP);
1045 }
1046
1047 static int nldev_res_get_cm_id_dumpit(struct sk_buff *skb,
1048                                       struct netlink_callback *cb)
1049 {
1050         return res_get_common_dumpit(skb, cb, RDMA_RESTRACK_CM_ID);
1051 }
1052
1053 static int nldev_res_get_cq_dumpit(struct sk_buff *skb,
1054                                    struct netlink_callback *cb)
1055 {
1056         return res_get_common_dumpit(skb, cb, RDMA_RESTRACK_CQ);
1057 }
1058
1059 static int nldev_res_get_mr_dumpit(struct sk_buff *skb,
1060                                    struct netlink_callback *cb)
1061 {
1062         return res_get_common_dumpit(skb, cb, RDMA_RESTRACK_MR);
1063 }
1064
1065 static int nldev_res_get_pd_dumpit(struct sk_buff *skb,
1066                                    struct netlink_callback *cb)
1067 {
1068         return res_get_common_dumpit(skb, cb, RDMA_RESTRACK_PD);
1069 }
1070
1071 static const struct rdma_nl_cbs nldev_cb_table[RDMA_NLDEV_NUM_OPS] = {
1072         [RDMA_NLDEV_CMD_GET] = {
1073                 .doit = nldev_get_doit,
1074                 .dump = nldev_get_dumpit,
1075         },
1076         [RDMA_NLDEV_CMD_PORT_GET] = {
1077                 .doit = nldev_port_get_doit,
1078                 .dump = nldev_port_get_dumpit,
1079         },
1080         [RDMA_NLDEV_CMD_RES_GET] = {
1081                 .doit = nldev_res_get_doit,
1082                 .dump = nldev_res_get_dumpit,
1083         },
1084         [RDMA_NLDEV_CMD_RES_QP_GET] = {
1085                 .dump = nldev_res_get_qp_dumpit,
1086                 /*
1087                  * .doit is not implemented yet for two reasons:
1088                  * 1. It is not needed yet.
1089                  * 2. There is a need to provide identifier, while it is easy
1090                  * for the QPs (device index + port index + LQPN), it is not
1091                  * the case for the rest of resources (PD and CQ). Because it
1092                  * is better to provide similar interface for all resources,
1093                  * let's wait till we will have other resources implemented
1094                  * too.
1095                  */
1096         },
1097         [RDMA_NLDEV_CMD_RES_CM_ID_GET] = {
1098                 .dump = nldev_res_get_cm_id_dumpit,
1099         },
1100         [RDMA_NLDEV_CMD_RES_CQ_GET] = {
1101                 .dump = nldev_res_get_cq_dumpit,
1102         },
1103         [RDMA_NLDEV_CMD_RES_MR_GET] = {
1104                 .dump = nldev_res_get_mr_dumpit,
1105         },
1106         [RDMA_NLDEV_CMD_RES_PD_GET] = {
1107                 .dump = nldev_res_get_pd_dumpit,
1108         },
1109 };
1110
1111 void __init nldev_init(void)
1112 {
1113         rdma_nl_register(RDMA_NL_NLDEV, nldev_cb_table);
1114 }
1115
1116 void __exit nldev_exit(void)
1117 {
1118         rdma_nl_unregister(RDMA_NL_NLDEV);
1119 }
1120
1121 MODULE_ALIAS_RDMA_NETLINK(RDMA_NL_NLDEV, 5);