LXR linux/include/rdma/ib

   1/*
   2 * Copyright (c) 2004 Topspin Communications.  All rights reserved.
   3 * Copyright (c) 2005 Voltaire, Inc.  All rights reserved.
   4 * Copyright (c) 2006 Intel Corporation.  All rights reserved.
   5 *
   6 * This software is available to you under a choice of one of two
   7 * licenses.  You may choose to be licensed under the terms of the GNU
   8 * General Public License (GPL) Version 2, available from the file
   9 * COPYING in the main directory of this source tree, or the
  10 * OpenIB.org BSD license below:
  11 *
  12 *     Redistribution and use in source and binary forms, with or
  13 *     without modification, are permitted provided that the following
  14 *     conditions are met:
  15 *
  16 *      - Redistributions of source code must retain the above
  17 *        copyright notice, this list of conditions and the following
  18 *        disclaimer.
  19 *
  20 *      - Redistributions in binary form must reproduce the above
  21 *        copyright notice, this list of conditions and the following
  22 *        disclaimer in the documentation and/or other materials
  23 *        provided with the distribution.
  24 *
  25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  32 * SOFTWARE.
  33 */
  34
  35#ifndef IB_SA_H
  36#define IB_SA_H
  37
  38#include <linux/completion.h>
  39#include <linux/compiler.h>
  40
  41#include <linux/atomic.h>
  42#include <linux/netdevice.h>
  43
  44#include <rdma/ib_verbs.h>
  45#include <rdma/ib_mad.h>
  46
  47enum {
  48        IB_SA_CLASS_VERSION             = 2,    /* IB spec version 1.1/1.2 */
  49
  50        IB_SA_METHOD_GET_TABLE          = 0x12,
  51        IB_SA_METHOD_GET_TABLE_RESP     = 0x92,
  52        IB_SA_METHOD_DELETE             = 0x15,
  53        IB_SA_METHOD_DELETE_RESP        = 0x95,
  54        IB_SA_METHOD_GET_MULTI          = 0x14,
  55        IB_SA_METHOD_GET_MULTI_RESP     = 0x94,
  56        IB_SA_METHOD_GET_TRACE_TBL      = 0x13
  57};
  58
  59enum {
  60        IB_SA_ATTR_CLASS_PORTINFO    = 0x01,
  61        IB_SA_ATTR_NOTICE            = 0x02,
  62        IB_SA_ATTR_INFORM_INFO       = 0x03,
  63        IB_SA_ATTR_NODE_REC          = 0x11,
  64        IB_SA_ATTR_PORT_INFO_REC     = 0x12,
  65        IB_SA_ATTR_SL2VL_REC         = 0x13,
  66        IB_SA_ATTR_SWITCH_REC        = 0x14,
  67        IB_SA_ATTR_LINEAR_FDB_REC    = 0x15,
  68        IB_SA_ATTR_RANDOM_FDB_REC    = 0x16,
  69        IB_SA_ATTR_MCAST_FDB_REC     = 0x17,
  70        IB_SA_ATTR_SM_INFO_REC       = 0x18,
  71        IB_SA_ATTR_LINK_REC          = 0x20,
  72        IB_SA_ATTR_GUID_INFO_REC     = 0x30,
  73        IB_SA_ATTR_SERVICE_REC       = 0x31,
  74        IB_SA_ATTR_PARTITION_REC     = 0x33,
  75        IB_SA_ATTR_PATH_REC          = 0x35,
  76        IB_SA_ATTR_VL_ARB_REC        = 0x36,
  77        IB_SA_ATTR_MC_MEMBER_REC     = 0x38,
  78        IB_SA_ATTR_TRACE_REC         = 0x39,
  79        IB_SA_ATTR_MULTI_PATH_REC    = 0x3a,
  80        IB_SA_ATTR_SERVICE_ASSOC_REC = 0x3b,
  81        IB_SA_ATTR_INFORM_INFO_REC   = 0xf3
  82};
  83
  84enum ib_sa_selector {
  85        IB_SA_GT   = 0,
  86        IB_SA_LT   = 1,
  87        IB_SA_EQ   = 2,
  88        /*
  89         * The meaning of "best" depends on the attribute: for
  90         * example, for MTU best will return the largest available
  91         * MTU, while for packet life time, best will return the
  92         * smallest available life time.
  93         */
  94        IB_SA_BEST = 3
  95};
  96
  97/*
  98 * There are 4 types of join states:
  99 * FullMember, NonMember, SendOnlyNonMember, SendOnlyFullMember.
 100 * The order corresponds to JoinState bits in MCMemberRecord.
 101 */
 102enum ib_sa_mc_join_states {
 103        FULLMEMBER_JOIN,
 104        NONMEMBER_JOIN,
 105        SENDONLY_NONMEBER_JOIN,
 106        SENDONLY_FULLMEMBER_JOIN,
 107        NUM_JOIN_MEMBERSHIP_TYPES,
 108};
 109
 110#define IB_SA_CAP_MASK2_SENDONLY_FULL_MEM_SUPPORT       BIT(12)
 111
 112/*
 113 * Structures for SA records are named "struct ib_sa_xxx_rec."  No
 114 * attempt is made to pack structures to match the physical layout of
 115 * SA records in SA MADs; all packing and unpacking is handled by the
 116 * SA query code.
 117 *
 118 * For a record with structure ib_sa_xxx_rec, the naming convention
 119 * for the component mask value for field yyy is IB_SA_XXX_REC_YYY (we
 120 * never use different abbreviations or otherwise change the spelling
 121 * of xxx/yyy between ib_sa_xxx_rec.yyy and IB_SA_XXX_REC_YYY).
 122 *
 123 * Reserved rows are indicated with comments to help maintainability.
 124 */
 125
 126#define IB_SA_PATH_REC_SERVICE_ID                      (IB_SA_COMP_MASK( 0) |\
 127                                                        IB_SA_COMP_MASK( 1))
 128#define IB_SA_PATH_REC_DGID                             IB_SA_COMP_MASK( 2)
 129#define IB_SA_PATH_REC_SGID                             IB_SA_COMP_MASK( 3)
 130#define IB_SA_PATH_REC_DLID                             IB_SA_COMP_MASK( 4)
 131#define IB_SA_PATH_REC_SLID                             IB_SA_COMP_MASK( 5)
 132#define IB_SA_PATH_REC_RAW_TRAFFIC                      IB_SA_COMP_MASK( 6)
 133/* reserved:                                                             7 */
 134#define IB_SA_PATH_REC_FLOW_LABEL                       IB_SA_COMP_MASK( 8)
 135#define IB_SA_PATH_REC_HOP_LIMIT                        IB_SA_COMP_MASK( 9)
 136#define IB_SA_PATH_REC_TRAFFIC_CLASS                    IB_SA_COMP_MASK(10)
 137#define IB_SA_PATH_REC_REVERSIBLE                       IB_SA_COMP_MASK(11)
 138#define IB_SA_PATH_REC_NUMB_PATH                        IB_SA_COMP_MASK(12)
 139#define IB_SA_PATH_REC_PKEY                             IB_SA_COMP_MASK(13)
 140#define IB_SA_PATH_REC_QOS_CLASS                        IB_SA_COMP_MASK(14)
 141#define IB_SA_PATH_REC_SL                               IB_SA_COMP_MASK(15)
 142#define IB_SA_PATH_REC_MTU_SELECTOR                     IB_SA_COMP_MASK(16)
 143#define IB_SA_PATH_REC_MTU                              IB_SA_COMP_MASK(17)
 144#define IB_SA_PATH_REC_RATE_SELECTOR                    IB_SA_COMP_MASK(18)
 145#define IB_SA_PATH_REC_RATE                             IB_SA_COMP_MASK(19)
 146#define IB_SA_PATH_REC_PACKET_LIFE_TIME_SELECTOR        IB_SA_COMP_MASK(20)
 147#define IB_SA_PATH_REC_PACKET_LIFE_TIME                 IB_SA_COMP_MASK(21)
 148#define IB_SA_PATH_REC_PREFERENCE                       IB_SA_COMP_MASK(22)
 149
 150struct ib_sa_path_rec {
 151        __be64       service_id;
 152        union ib_gid dgid;
 153        union ib_gid sgid;
 154        __be16       dlid;
 155        __be16       slid;
 156        int          raw_traffic;
 157        /* reserved */
 158        __be32       flow_label;
 159        u8           hop_limit;
 160        u8           traffic_class;
 161        int          reversible;
 162        u8           numb_path;
 163        __be16       pkey;
 164        __be16       qos_class;
 165        u8           sl;
 166        u8           mtu_selector;
 167        u8           mtu;
 168        u8           rate_selector;
 169        u8           rate;
 170        u8           packet_life_time_selector;
 171        u8           packet_life_time;
 172        u8           preference;
 173        u8           dmac[ETH_ALEN];
 174        /* ignored in IB */
 175        int          ifindex;
 176        /* ignored in IB */
 177        struct net  *net;
 178        enum ib_gid_type gid_type;
 179};
 180
 181static inline struct net_device *ib_get_ndev_from_path(struct ib_sa_path_rec *rec)
 182{
 183        return rec->net ? dev_get_by_index(rec->net, rec->ifindex) : NULL;
 184}
 185
 186#define IB_SA_MCMEMBER_REC_MGID                         IB_SA_COMP_MASK( 0)
 187#define IB_SA_MCMEMBER_REC_PORT_GID                     IB_SA_COMP_MASK( 1)
 188#define IB_SA_MCMEMBER_REC_QKEY                         IB_SA_COMP_MASK( 2)
 189#define IB_SA_MCMEMBER_REC_MLID                         IB_SA_COMP_MASK( 3)
 190#define IB_SA_MCMEMBER_REC_MTU_SELECTOR                 IB_SA_COMP_MASK( 4)
 191#define IB_SA_MCMEMBER_REC_MTU                          IB_SA_COMP_MASK( 5)
 192#define IB_SA_MCMEMBER_REC_TRAFFIC_CLASS                IB_SA_COMP_MASK( 6)
 193#define IB_SA_MCMEMBER_REC_PKEY                         IB_SA_COMP_MASK( 7)
 194#define IB_SA_MCMEMBER_REC_RATE_SELECTOR                IB_SA_COMP_MASK( 8)
 195#define IB_SA_MCMEMBER_REC_RATE                         IB_SA_COMP_MASK( 9)
 196#define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME_SELECTOR    IB_SA_COMP_MASK(10)
 197#define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME             IB_SA_COMP_MASK(11)
 198#define IB_SA_MCMEMBER_REC_SL                           IB_SA_COMP_MASK(12)
 199#define IB_SA_MCMEMBER_REC_FLOW_LABEL                   IB_SA_COMP_MASK(13)
 200#define IB_SA_MCMEMBER_REC_HOP_LIMIT                    IB_SA_COMP_MASK(14)
 201#define IB_SA_MCMEMBER_REC_SCOPE                        IB_SA_COMP_MASK(15)
 202#define IB_SA_MCMEMBER_REC_JOIN_STATE                   IB_SA_COMP_MASK(16)
 203#define IB_SA_MCMEMBER_REC_PROXY_JOIN                   IB_SA_COMP_MASK(17)
 204
 205struct ib_sa_mcmember_rec {
 206        union ib_gid mgid;
 207        union ib_gid port_gid;
 208        __be32       qkey;
 209        __be16       mlid;
 210        u8           mtu_selector;
 211        u8           mtu;
 212        u8           traffic_class;
 213        __be16       pkey;
 214        u8           rate_selector;
 215        u8           rate;
 216        u8           packet_life_time_selector;
 217        u8           packet_life_time;
 218        u8           sl;
 219        __be32       flow_label;
 220        u8           hop_limit;
 221        u8           scope;
 222        u8           join_state;
 223        int          proxy_join;
 224};
 225
 226/* Service Record Component Mask Sec 15.2.5.14 Ver 1.1  */
 227#define IB_SA_SERVICE_REC_SERVICE_ID                    IB_SA_COMP_MASK( 0)
 228#define IB_SA_SERVICE_REC_SERVICE_GID                   IB_SA_COMP_MASK( 1)
 229#define IB_SA_SERVICE_REC_SERVICE_PKEY                  IB_SA_COMP_MASK( 2)
 230/* reserved:                                                             3 */
 231#define IB_SA_SERVICE_REC_SERVICE_LEASE                 IB_SA_COMP_MASK( 4)
 232#define IB_SA_SERVICE_REC_SERVICE_KEY                   IB_SA_COMP_MASK( 5)
 233#define IB_SA_SERVICE_REC_SERVICE_NAME                  IB_SA_COMP_MASK( 6)
 234#define IB_SA_SERVICE_REC_SERVICE_DATA8_0               IB_SA_COMP_MASK( 7)
 235#define IB_SA_SERVICE_REC_SERVICE_DATA8_1               IB_SA_COMP_MASK( 8)
 236#define IB_SA_SERVICE_REC_SERVICE_DATA8_2               IB_SA_COMP_MASK( 9)
 237#define IB_SA_SERVICE_REC_SERVICE_DATA8_3               IB_SA_COMP_MASK(10)
 238#define IB_SA_SERVICE_REC_SERVICE_DATA8_4               IB_SA_COMP_MASK(11)
 239#define IB_SA_SERVICE_REC_SERVICE_DATA8_5               IB_SA_COMP_MASK(12)
 240#define IB_SA_SERVICE_REC_SERVICE_DATA8_6               IB_SA_COMP_MASK(13)
 241#define IB_SA_SERVICE_REC_SERVICE_DATA8_7               IB_SA_COMP_MASK(14)
 242#define IB_SA_SERVICE_REC_SERVICE_DATA8_8               IB_SA_COMP_MASK(15)
 243#define IB_SA_SERVICE_REC_SERVICE_DATA8_9               IB_SA_COMP_MASK(16)
 244#define IB_SA_SERVICE_REC_SERVICE_DATA8_10              IB_SA_COMP_MASK(17)
 245#define IB_SA_SERVICE_REC_SERVICE_DATA8_11              IB_SA_COMP_MASK(18)
 246#define IB_SA_SERVICE_REC_SERVICE_DATA8_12              IB_SA_COMP_MASK(19)
 247#define IB_SA_SERVICE_REC_SERVICE_DATA8_13              IB_SA_COMP_MASK(20)
 248#define IB_SA_SERVICE_REC_SERVICE_DATA8_14              IB_SA_COMP_MASK(21)
 249#define IB_SA_SERVICE_REC_SERVICE_DATA8_15              IB_SA_COMP_MASK(22)
 250#define IB_SA_SERVICE_REC_SERVICE_DATA16_0              IB_SA_COMP_MASK(23)
 251#define IB_SA_SERVICE_REC_SERVICE_DATA16_1              IB_SA_COMP_MASK(24)
 252#define IB_SA_SERVICE_REC_SERVICE_DATA16_2              IB_SA_COMP_MASK(25)
 253#define IB_SA_SERVICE_REC_SERVICE_DATA16_3              IB_SA_COMP_MASK(26)
 254#define IB_SA_SERVICE_REC_SERVICE_DATA16_4              IB_SA_COMP_MASK(27)
 255#define IB_SA_SERVICE_REC_SERVICE_DATA16_5              IB_SA_COMP_MASK(28)
 256#define IB_SA_SERVICE_REC_SERVICE_DATA16_6              IB_SA_COMP_MASK(29)
 257#define IB_SA_SERVICE_REC_SERVICE_DATA16_7              IB_SA_COMP_MASK(30)
 258#define IB_SA_SERVICE_REC_SERVICE_DATA32_0              IB_SA_COMP_MASK(31)
 259#define IB_SA_SERVICE_REC_SERVICE_DATA32_1              IB_SA_COMP_MASK(32)
 260#define IB_SA_SERVICE_REC_SERVICE_DATA32_2              IB_SA_COMP_MASK(33)
 261#define IB_SA_SERVICE_REC_SERVICE_DATA32_3              IB_SA_COMP_MASK(34)
 262#define IB_SA_SERVICE_REC_SERVICE_DATA64_0              IB_SA_COMP_MASK(35)
 263#define IB_SA_SERVICE_REC_SERVICE_DATA64_1              IB_SA_COMP_MASK(36)
 264
 265#define IB_DEFAULT_SERVICE_LEASE        0xFFFFFFFF
 266
 267struct ib_sa_service_rec {
 268        u64             id;
 269        union ib_gid    gid;
 270        __be16          pkey;
 271        /* reserved */
 272        u32             lease;
 273        u8              key[16];
 274        u8              name[64];
 275        u8              data8[16];
 276        u16             data16[8];
 277        u32             data32[4];
 278        u64             data64[2];
 279};
 280
 281#define IB_SA_GUIDINFO_REC_LID          IB_SA_COMP_MASK(0)
 282#define IB_SA_GUIDINFO_REC_BLOCK_NUM    IB_SA_COMP_MASK(1)
 283#define IB_SA_GUIDINFO_REC_RES1         IB_SA_COMP_MASK(2)
 284#define IB_SA_GUIDINFO_REC_RES2         IB_SA_COMP_MASK(3)
 285#define IB_SA_GUIDINFO_REC_GID0         IB_SA_COMP_MASK(4)
 286#define IB_SA_GUIDINFO_REC_GID1         IB_SA_COMP_MASK(5)
 287#define IB_SA_GUIDINFO_REC_GID2         IB_SA_COMP_MASK(6)
 288#define IB_SA_GUIDINFO_REC_GID3         IB_SA_COMP_MASK(7)
 289#define IB_SA_GUIDINFO_REC_GID4         IB_SA_COMP_MASK(8)
 290#define IB_SA_GUIDINFO_REC_GID5         IB_SA_COMP_MASK(9)
 291#define IB_SA_GUIDINFO_REC_GID6         IB_SA_COMP_MASK(10)
 292#define IB_SA_GUIDINFO_REC_GID7         IB_SA_COMP_MASK(11)
 293
 294struct ib_sa_guidinfo_rec {
 295        __be16  lid;
 296        u8      block_num;
 297        /* reserved */
 298        u8      res1;
 299        __be32  res2;
 300        u8      guid_info_list[64];
 301};
 302
 303struct ib_sa_client {
 304        atomic_t users;
 305        struct completion comp;
 306};
 307
 308/**
 309 * ib_sa_register_client - Register an SA client.
 310 */
 311void ib_sa_register_client(struct ib_sa_client *client);
 312
 313/**
 314 * ib_sa_unregister_client - Deregister an SA client.
 315 * @client: Client object to deregister.
 316 */
 317void ib_sa_unregister_client(struct ib_sa_client *client);
 318
 319struct ib_sa_query;
 320
 321void ib_sa_cancel_query(int id, struct ib_sa_query *query);
 322
 323int ib_sa_path_rec_get(struct ib_sa_client *client,
 324                       struct ib_device *device, u8 port_num,
 325                       struct ib_sa_path_rec *rec,
 326                       ib_sa_comp_mask comp_mask,
 327                       int timeout_ms, gfp_t gfp_mask,
 328                       void (*callback)(int status,
 329                                        struct ib_sa_path_rec *resp,
 330                                        void *context),
 331                       void *context,
 332                       struct ib_sa_query **query);
 333
 334int ib_sa_service_rec_query(struct ib_sa_client *client,
 335                         struct ib_device *device, u8 port_num,
 336                         u8 method,
 337                         struct ib_sa_service_rec *rec,
 338                         ib_sa_comp_mask comp_mask,
 339                         int timeout_ms, gfp_t gfp_mask,
 340                         void (*callback)(int status,
 341                                          struct ib_sa_service_rec *resp,
 342                                          void *context),
 343                         void *context,
 344                         struct ib_sa_query **sa_query);
 345
 346struct ib_sa_multicast {
 347        struct ib_sa_mcmember_rec rec;
 348        ib_sa_comp_mask         comp_mask;
 349        int                     (*callback)(int status,
 350                                            struct ib_sa_multicast *multicast);
 351        void                    *context;
 352};
 353
 354/**
 355 * ib_sa_join_multicast - Initiates a join request to the specified multicast
 356 *   group.
 357 * @client: SA client
 358 * @device: Device associated with the multicast group.
 359 * @port_num: Port on the specified device to associate with the multicast
 360 *   group.
 361 * @rec: SA multicast member record specifying group attributes.
 362 * @comp_mask: Component mask indicating which group attributes of %rec are
 363 *   valid.
 364 * @gfp_mask: GFP mask for memory allocations.
 365 * @callback: User callback invoked once the join operation completes.
 366 * @context: User specified context stored with the ib_sa_multicast structure.
 367 *
 368 * This call initiates a multicast join request with the SA for the specified
 369 * multicast group.  If the join operation is started successfully, it returns
 370 * an ib_sa_multicast structure that is used to track the multicast operation.
 371 * Users must free this structure by calling ib_free_multicast, even if the
 372 * join operation later fails.  (The callback status is non-zero.)
 373 *
 374 * If the join operation fails; status will be non-zero, with the following
 375 * failures possible:
 376 * -ETIMEDOUT: The request timed out.
 377 * -EIO: An error occurred sending the query.
 378 * -EINVAL: The MCMemberRecord values differed from the existing group's.
 379 * -ENETRESET: Indicates that an fatal error has occurred on the multicast
 380 *   group, and the user must rejoin the group to continue using it.
 381 */
 382struct ib_sa_multicast *ib_sa_join_multicast(struct ib_sa_client *client,
 383                                             struct ib_device *device, u8 port_num,
 384                                             struct ib_sa_mcmember_rec *rec,
 385                                             ib_sa_comp_mask comp_mask, gfp_t gfp_mask,
 386                                             int (*callback)(int status,
 387                                                             struct ib_sa_multicast
 388                                                                    *multicast),
 389                                             void *context);
 390
 391/**
 392 * ib_free_multicast - Frees the multicast tracking structure, and releases
 393 *    any reference on the multicast group.
 394 * @multicast: Multicast tracking structure allocated by ib_join_multicast.
 395 *
 396 * This call blocks until the multicast identifier is destroyed.  It may
 397 * not be called from within the multicast callback; however, returning a non-
 398 * zero value from the callback will result in destroying the multicast
 399 * tracking structure.
 400 */
 401void ib_sa_free_multicast(struct ib_sa_multicast *multicast);
 402
 403/**
 404 * ib_get_mcmember_rec - Looks up a multicast member record by its MGID and
 405 *   returns it if found.
 406 * @device: Device associated with the multicast group.
 407 * @port_num: Port on the specified device to associate with the multicast
 408 *   group.
 409 * @mgid: MGID of multicast group.
 410 * @rec: Location to copy SA multicast member record.
 411 */
 412int ib_sa_get_mcmember_rec(struct ib_device *device, u8 port_num,
 413                           union ib_gid *mgid, struct ib_sa_mcmember_rec *rec);
 414
 415/**
 416 * ib_init_ah_from_mcmember - Initialize address handle attributes based on
 417 * an SA multicast member record.
 418 */
 419int ib_init_ah_from_mcmember(struct ib_device *device, u8 port_num,
 420                             struct ib_sa_mcmember_rec *rec,
 421                             struct net_device *ndev,
 422                             enum ib_gid_type gid_type,
 423                             struct ib_ah_attr *ah_attr);
 424
 425/**
 426 * ib_init_ah_from_path - Initialize address handle attributes based on an SA
 427 *   path record.
 428 */
 429int ib_init_ah_from_path(struct ib_device *device, u8 port_num,
 430                         struct ib_sa_path_rec *rec,
 431                         struct ib_ah_attr *ah_attr);
 432
 433/**
 434 * ib_sa_pack_path - Conert a path record from struct ib_sa_path_rec
 435 * to IB MAD wire format.
 436 */
 437void ib_sa_pack_path(struct ib_sa_path_rec *rec, void *attribute);
 438
 439/**
 440 * ib_sa_unpack_path - Convert a path record from MAD format to struct
 441 * ib_sa_path_rec.
 442 */
 443void ib_sa_unpack_path(void *attribute, struct ib_sa_path_rec *rec);
 444
 445/* Support GuidInfoRecord */
 446int ib_sa_guid_info_rec_query(struct ib_sa_client *client,
 447                              struct ib_device *device, u8 port_num,
 448                              struct ib_sa_guidinfo_rec *rec,
 449                              ib_sa_comp_mask comp_mask, u8 method,
 450                              int timeout_ms, gfp_t gfp_mask,
 451                              void (*callback)(int status,
 452                                               struct ib_sa_guidinfo_rec *resp,
 453                                               void *context),
 454                              void *context,
 455                              struct ib_sa_query **sa_query);
 456
 457/* Support get SA ClassPortInfo */
 458int ib_sa_classport_info_rec_query(struct ib_sa_client *client,
 459                                   struct ib_device *device, u8 port_num,
 460                                   int timeout_ms, gfp_t gfp_mask,
 461                                   void (*callback)(int status,
 462                                                    struct ib_class_port_info *resp,
 463                                                    void *context),
 464                                   void *context,
 465                                   struct ib_sa_query **sa_query);
 466
 467#endif /* IB_SA_H */
 468