sys/ofed/include/rdma/ib_sa.h

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0
   3  *
   4  * Copyright (c) 2004 Topspin Communications.  All rights reserved.
   5  * Copyright (c) 2005 Voltaire, Inc.  All rights reserved.
   6  * Copyright (c) 2006 Intel Corporation.  All rights reserved.
   7  *
   8  * This software is available to you under a choice of one of two
   9  * licenses.  You may choose to be licensed under the terms of the GNU
  10  * General Public License (GPL) Version 2, available from the file
  11  * COPYING in the main directory of this source tree, or the
  12  * OpenIB.org BSD license below:
  13  *
  14  *     Redistribution and use in source and binary forms, with or
  15  *     without modification, are permitted provided that the following
  16  *     conditions are met:
  17  *
  18  *      - Redistributions of source code must retain the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer.
  21  *
  22  *      - Redistributions in binary form must reproduce the above
  23  *        copyright notice, this list of conditions and the following
  24  *        disclaimer in the documentation and/or other materials
  25  *        provided with the distribution.
  26  *
  27  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  28  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  29  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  30  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  31  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  32  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  33  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  34  * SOFTWARE.
  35  *
  36  * $FreeBSD$
  37  */
  38
  39 #ifndef IB_SA_H
  40 #define IB_SA_H
  41
  42 #include <linux/completion.h>
  43 #include <linux/compiler.h>
  44 #include <linux/netdevice.h>
  45
  46 #include <rdma/ib_verbs.h>
  47 #include <rdma/ib_mad.h>
  48
  49 enum {
  50         IB_SA_CLASS_VERSION             = 2,    /* IB spec version 1.1/1.2 */
  51
  52         IB_SA_METHOD_GET_TABLE          = 0x12,
  53         IB_SA_METHOD_GET_TABLE_RESP     = 0x92,
  54         IB_SA_METHOD_DELETE             = 0x15,
  55         IB_SA_METHOD_DELETE_RESP        = 0x95,
  56         IB_SA_METHOD_GET_MULTI          = 0x14,
  57         IB_SA_METHOD_GET_MULTI_RESP     = 0x94,
  58         IB_SA_METHOD_GET_TRACE_TBL      = 0x13
  59 };
  60
  61 enum {
  62         IB_SA_ATTR_CLASS_PORTINFO    = 0x01,
  63         IB_SA_ATTR_NOTICE            = 0x02,
  64         IB_SA_ATTR_INFORM_INFO       = 0x03,
  65         IB_SA_ATTR_NODE_REC          = 0x11,
  66         IB_SA_ATTR_PORT_INFO_REC     = 0x12,
  67         IB_SA_ATTR_SL2VL_REC         = 0x13,
  68         IB_SA_ATTR_SWITCH_REC        = 0x14,
  69         IB_SA_ATTR_LINEAR_FDB_REC    = 0x15,
  70         IB_SA_ATTR_RANDOM_FDB_REC    = 0x16,
  71         IB_SA_ATTR_MCAST_FDB_REC     = 0x17,
  72         IB_SA_ATTR_SM_INFO_REC       = 0x18,
  73         IB_SA_ATTR_LINK_REC          = 0x20,
  74         IB_SA_ATTR_GUID_INFO_REC     = 0x30,
  75         IB_SA_ATTR_SERVICE_REC       = 0x31,
  76         IB_SA_ATTR_PARTITION_REC     = 0x33,
  77         IB_SA_ATTR_PATH_REC          = 0x35,
  78         IB_SA_ATTR_VL_ARB_REC        = 0x36,
  79         IB_SA_ATTR_MC_MEMBER_REC     = 0x38,
  80         IB_SA_ATTR_TRACE_REC         = 0x39,
  81         IB_SA_ATTR_MULTI_PATH_REC    = 0x3a,
  82         IB_SA_ATTR_SERVICE_ASSOC_REC = 0x3b,
  83         IB_SA_ATTR_INFORM_INFO_REC   = 0xf3
  84 };
  85
  86 enum ib_sa_selector {
  87         IB_SA_GT   = 0,
  88         IB_SA_LT   = 1,
  89         IB_SA_EQ   = 2,
  90         /*
  91          * The meaning of "best" depends on the attribute: for
  92          * example, for MTU best will return the largest available
  93          * MTU, while for packet life time, best will return the
  94          * smallest available life time.
  95          */
  96         IB_SA_BEST = 3
  97 };
  98
  99 /*
 100  * There are 4 types of join states:
 101  * FullMember, NonMember, SendOnlyNonMember, SendOnlyFullMember.
 102  * The order corresponds to JoinState bits in MCMemberRecord.
 103  */
 104 enum ib_sa_mc_join_states {
 105         FULLMEMBER_JOIN,
 106         NONMEMBER_JOIN,
 107         SENDONLY_NONMEBER_JOIN,
 108         SENDONLY_FULLMEMBER_JOIN,
 109         NUM_JOIN_MEMBERSHIP_TYPES,
 110 };
 111
 112 #define IB_SA_CAP_MASK2_SENDONLY_FULL_MEM_SUPPORT       BIT(12)
 113
 114 /*
 115  * Structures for SA records are named "struct ib_sa_xxx_rec."  No
 116  * attempt is made to pack structures to match the physical layout of
 117  * SA records in SA MADs; all packing and unpacking is handled by the
 118  * SA query code.
 119  *
 120  * For a record with structure ib_sa_xxx_rec, the naming convention
 121  * for the component mask value for field yyy is IB_SA_XXX_REC_YYY (we
 122  * never use different abbreviations or otherwise change the spelling
 123  * of xxx/yyy between ib_sa_xxx_rec.yyy and IB_SA_XXX_REC_YYY).
 124  *
 125  * Reserved rows are indicated with comments to help maintainability.
 126  */
 127
 128 #define IB_SA_PATH_REC_SERVICE_ID                      (IB_SA_COMP_MASK( 0) |\
 129                                                         IB_SA_COMP_MASK( 1))
 130 #define IB_SA_PATH_REC_DGID                             IB_SA_COMP_MASK( 2)
 131 #define IB_SA_PATH_REC_SGID                             IB_SA_COMP_MASK( 3)
 132 #define IB_SA_PATH_REC_DLID                             IB_SA_COMP_MASK( 4)
 133 #define IB_SA_PATH_REC_SLID                             IB_SA_COMP_MASK( 5)
 134 #define IB_SA_PATH_REC_RAW_TRAFFIC                      IB_SA_COMP_MASK( 6)
 135 /* reserved:                                                             7 */
 136 #define IB_SA_PATH_REC_FLOW_LABEL                       IB_SA_COMP_MASK( 8)
 137 #define IB_SA_PATH_REC_HOP_LIMIT                        IB_SA_COMP_MASK( 9)
 138 #define IB_SA_PATH_REC_TRAFFIC_CLASS                    IB_SA_COMP_MASK(10)
 139 #define IB_SA_PATH_REC_REVERSIBLE                       IB_SA_COMP_MASK(11)
 140 #define IB_SA_PATH_REC_NUMB_PATH                        IB_SA_COMP_MASK(12)
 141 #define IB_SA_PATH_REC_PKEY                             IB_SA_COMP_MASK(13)
 142 #define IB_SA_PATH_REC_QOS_CLASS                        IB_SA_COMP_MASK(14)
 143 #define IB_SA_PATH_REC_SL                               IB_SA_COMP_MASK(15)
 144 #define IB_SA_PATH_REC_MTU_SELECTOR                     IB_SA_COMP_MASK(16)
 145 #define IB_SA_PATH_REC_MTU                              IB_SA_COMP_MASK(17)
 146 #define IB_SA_PATH_REC_RATE_SELECTOR                    IB_SA_COMP_MASK(18)
 147 #define IB_SA_PATH_REC_RATE                             IB_SA_COMP_MASK(19)
 148 #define IB_SA_PATH_REC_PACKET_LIFE_TIME_SELECTOR        IB_SA_COMP_MASK(20)
 149 #define IB_SA_PATH_REC_PACKET_LIFE_TIME                 IB_SA_COMP_MASK(21)
 150 #define IB_SA_PATH_REC_PREFERENCE                       IB_SA_COMP_MASK(22)
 151
 152 struct ib_sa_path_rec {
 153         __be64       service_id;
 154         union ib_gid dgid;
 155         union ib_gid sgid;
 156         __be16       dlid;
 157         __be16       slid;
 158         int          raw_traffic;
 159         /* reserved */
 160         __be32       flow_label;
 161         u8           hop_limit;
 162         u8           traffic_class;
 163         int          reversible;
 164         u8           numb_path;
 165         __be16       pkey;
 166         __be16       qos_class;
 167         u8           sl;
 168         u8           mtu_selector;
 169         u8           mtu;
 170         u8           rate_selector;
 171         u8           rate;
 172         u8           packet_life_time_selector;
 173         u8           packet_life_time;
 174         u8           preference;
 175         u8           dmac[ETH_ALEN];
 176         /* ignored in IB */
 177         int          ifindex;
 178         /* ignored in IB */
 179         struct vnet  *net;
 180         enum ib_gid_type gid_type;
 181 };
 182
 183 static inline struct net_device *ib_get_ndev_from_path(struct ib_sa_path_rec *rec)
 184 {
 185 #ifdef VIMAGE
 186         if (rec->net == NULL)
 187                 return NULL;
 188 #endif
 189         return dev_get_by_index(rec->net, rec->ifindex);
 190 }
 191
 192 #define IB_SA_MCMEMBER_REC_MGID                         IB_SA_COMP_MASK( 0)
 193 #define IB_SA_MCMEMBER_REC_PORT_GID                     IB_SA_COMP_MASK( 1)
 194 #define IB_SA_MCMEMBER_REC_QKEY                         IB_SA_COMP_MASK( 2)
 195 #define IB_SA_MCMEMBER_REC_MLID                         IB_SA_COMP_MASK( 3)
 196 #define IB_SA_MCMEMBER_REC_MTU_SELECTOR                 IB_SA_COMP_MASK( 4)
 197 #define IB_SA_MCMEMBER_REC_MTU                          IB_SA_COMP_MASK( 5)
 198 #define IB_SA_MCMEMBER_REC_TRAFFIC_CLASS                IB_SA_COMP_MASK( 6)
 199 #define IB_SA_MCMEMBER_REC_PKEY                         IB_SA_COMP_MASK( 7)
 200 #define IB_SA_MCMEMBER_REC_RATE_SELECTOR                IB_SA_COMP_MASK( 8)
 201 #define IB_SA_MCMEMBER_REC_RATE                         IB_SA_COMP_MASK( 9)
 202 #define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME_SELECTOR    IB_SA_COMP_MASK(10)
 203 #define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME             IB_SA_COMP_MASK(11)
 204 #define IB_SA_MCMEMBER_REC_SL                           IB_SA_COMP_MASK(12)
 205 #define IB_SA_MCMEMBER_REC_FLOW_LABEL                   IB_SA_COMP_MASK(13)
 206 #define IB_SA_MCMEMBER_REC_HOP_LIMIT                    IB_SA_COMP_MASK(14)
 207 #define IB_SA_MCMEMBER_REC_SCOPE                        IB_SA_COMP_MASK(15)
 208 #define IB_SA_MCMEMBER_REC_JOIN_STATE                   IB_SA_COMP_MASK(16)
 209 #define IB_SA_MCMEMBER_REC_PROXY_JOIN                   IB_SA_COMP_MASK(17)
 210
 211 struct ib_sa_mcmember_rec {
 212         union ib_gid mgid;
 213         union ib_gid port_gid;
 214         __be32       qkey;
 215         __be16       mlid;
 216         u8           mtu_selector;
 217         u8           mtu;
 218         u8           traffic_class;
 219         __be16       pkey;
 220         u8           rate_selector;
 221         u8           rate;
 222         u8           packet_life_time_selector;
 223         u8           packet_life_time;
 224         u8           sl;
 225         __be32       flow_label;
 226         u8           hop_limit;
 227         u8           scope;
 228         u8           join_state;
 229         int          proxy_join;
 230 };
 231
 232 /* Service Record Component Mask Sec 15.2.5.14 Ver 1.1  */
 233 #define IB_SA_SERVICE_REC_SERVICE_ID                    IB_SA_COMP_MASK( 0)
 234 #define IB_SA_SERVICE_REC_SERVICE_GID                   IB_SA_COMP_MASK( 1)
 235 #define IB_SA_SERVICE_REC_SERVICE_PKEY                  IB_SA_COMP_MASK( 2)
 236 /* reserved:                                                             3 */
 237 #define IB_SA_SERVICE_REC_SERVICE_LEASE                 IB_SA_COMP_MASK( 4)
 238 #define IB_SA_SERVICE_REC_SERVICE_KEY                   IB_SA_COMP_MASK( 5)
 239 #define IB_SA_SERVICE_REC_SERVICE_NAME                  IB_SA_COMP_MASK( 6)
 240 #define IB_SA_SERVICE_REC_SERVICE_DATA8_0               IB_SA_COMP_MASK( 7)
 241 #define IB_SA_SERVICE_REC_SERVICE_DATA8_1               IB_SA_COMP_MASK( 8)
 242 #define IB_SA_SERVICE_REC_SERVICE_DATA8_2               IB_SA_COMP_MASK( 9)
 243 #define IB_SA_SERVICE_REC_SERVICE_DATA8_3               IB_SA_COMP_MASK(10)
 244 #define IB_SA_SERVICE_REC_SERVICE_DATA8_4               IB_SA_COMP_MASK(11)
 245 #define IB_SA_SERVICE_REC_SERVICE_DATA8_5               IB_SA_COMP_MASK(12)
 246 #define IB_SA_SERVICE_REC_SERVICE_DATA8_6               IB_SA_COMP_MASK(13)
 247 #define IB_SA_SERVICE_REC_SERVICE_DATA8_7               IB_SA_COMP_MASK(14)
 248 #define IB_SA_SERVICE_REC_SERVICE_DATA8_8               IB_SA_COMP_MASK(15)
 249 #define IB_SA_SERVICE_REC_SERVICE_DATA8_9               IB_SA_COMP_MASK(16)
 250 #define IB_SA_SERVICE_REC_SERVICE_DATA8_10              IB_SA_COMP_MASK(17)
 251 #define IB_SA_SERVICE_REC_SERVICE_DATA8_11              IB_SA_COMP_MASK(18)
 252 #define IB_SA_SERVICE_REC_SERVICE_DATA8_12              IB_SA_COMP_MASK(19)
 253 #define IB_SA_SERVICE_REC_SERVICE_DATA8_13              IB_SA_COMP_MASK(20)
 254 #define IB_SA_SERVICE_REC_SERVICE_DATA8_14              IB_SA_COMP_MASK(21)
 255 #define IB_SA_SERVICE_REC_SERVICE_DATA8_15              IB_SA_COMP_MASK(22)
 256 #define IB_SA_SERVICE_REC_SERVICE_DATA16_0              IB_SA_COMP_MASK(23)
 257 #define IB_SA_SERVICE_REC_SERVICE_DATA16_1              IB_SA_COMP_MASK(24)
 258 #define IB_SA_SERVICE_REC_SERVICE_DATA16_2              IB_SA_COMP_MASK(25)
 259 #define IB_SA_SERVICE_REC_SERVICE_DATA16_3              IB_SA_COMP_MASK(26)
 260 #define IB_SA_SERVICE_REC_SERVICE_DATA16_4              IB_SA_COMP_MASK(27)
 261 #define IB_SA_SERVICE_REC_SERVICE_DATA16_5              IB_SA_COMP_MASK(28)
 262 #define IB_SA_SERVICE_REC_SERVICE_DATA16_6              IB_SA_COMP_MASK(29)
 263 #define IB_SA_SERVICE_REC_SERVICE_DATA16_7              IB_SA_COMP_MASK(30)
 264 #define IB_SA_SERVICE_REC_SERVICE_DATA32_0              IB_SA_COMP_MASK(31)
 265 #define IB_SA_SERVICE_REC_SERVICE_DATA32_1              IB_SA_COMP_MASK(32)
 266 #define IB_SA_SERVICE_REC_SERVICE_DATA32_2              IB_SA_COMP_MASK(33)
 267 #define IB_SA_SERVICE_REC_SERVICE_DATA32_3              IB_SA_COMP_MASK(34)
 268 #define IB_SA_SERVICE_REC_SERVICE_DATA64_0              IB_SA_COMP_MASK(35)
 269 #define IB_SA_SERVICE_REC_SERVICE_DATA64_1              IB_SA_COMP_MASK(36)
 270
 271 #define IB_DEFAULT_SERVICE_LEASE        0xFFFFFFFF
 272
 273 struct ib_sa_service_rec {
 274         u64             id;
 275         union ib_gid    gid;
 276         __be16          pkey;
 277         /* reserved */
 278         u32             lease;
 279         u8              key[16];
 280         u8              name[64];
 281         u8              data8[16];
 282         u16             data16[8];
 283         u32             data32[4];
 284         u64             data64[2];
 285 };
 286
 287 #define IB_SA_GUIDINFO_REC_LID          IB_SA_COMP_MASK(0)
 288 #define IB_SA_GUIDINFO_REC_BLOCK_NUM    IB_SA_COMP_MASK(1)
 289 #define IB_SA_GUIDINFO_REC_RES1         IB_SA_COMP_MASK(2)
 290 #define IB_SA_GUIDINFO_REC_RES2         IB_SA_COMP_MASK(3)
 291 #define IB_SA_GUIDINFO_REC_GID0         IB_SA_COMP_MASK(4)
 292 #define IB_SA_GUIDINFO_REC_GID1         IB_SA_COMP_MASK(5)
 293 #define IB_SA_GUIDINFO_REC_GID2         IB_SA_COMP_MASK(6)
 294 #define IB_SA_GUIDINFO_REC_GID3         IB_SA_COMP_MASK(7)
 295 #define IB_SA_GUIDINFO_REC_GID4         IB_SA_COMP_MASK(8)
 296 #define IB_SA_GUIDINFO_REC_GID5         IB_SA_COMP_MASK(9)
 297 #define IB_SA_GUIDINFO_REC_GID6         IB_SA_COMP_MASK(10)
 298 #define IB_SA_GUIDINFO_REC_GID7         IB_SA_COMP_MASK(11)
 299
 300 struct ib_sa_guidinfo_rec {
 301         __be16  lid;
 302         u8      block_num;
 303         /* reserved */
 304         u8      res1;
 305         __be32  res2;
 306         u8      guid_info_list[64];
 307 };
 308
 309 struct ib_sa_client {
 310         atomic_t users;
 311         struct completion comp;
 312 };
 313
 314 /**
 315  * ib_sa_register_client - Register an SA client.
 316  */
 317 void ib_sa_register_client(struct ib_sa_client *client);
 318
 319 /**
 320  * ib_sa_unregister_client - Deregister an SA client.
 321  * @client: Client object to deregister.
 322  */
 323 void ib_sa_unregister_client(struct ib_sa_client *client);
 324
 325 struct ib_sa_query;
 326
 327 void ib_sa_cancel_query(int id, struct ib_sa_query *query);
 328
 329 int ib_sa_path_rec_get(struct ib_sa_client *client,
 330                        struct ib_device *device, u8 port_num,
 331                        struct ib_sa_path_rec *rec,
 332                        ib_sa_comp_mask comp_mask,
 333                        int timeout_ms, gfp_t gfp_mask,
 334                        void (*callback)(int status,
 335                                         struct ib_sa_path_rec *resp,
 336                                         void *context),
 337                        void *context,
 338                        struct ib_sa_query **query);
 339
 340 int ib_sa_service_rec_query(struct ib_sa_client *client,
 341                          struct ib_device *device, u8 port_num,
 342                          u8 method,
 343                          struct ib_sa_service_rec *rec,
 344                          ib_sa_comp_mask comp_mask,
 345                          int timeout_ms, gfp_t gfp_mask,
 346                          void (*callback)(int status,
 347                                           struct ib_sa_service_rec *resp,
 348                                           void *context),
 349                          void *context,
 350                          struct ib_sa_query **sa_query);
 351
 352 struct ib_sa_multicast {
 353         struct ib_sa_mcmember_rec rec;
 354         ib_sa_comp_mask         comp_mask;
 355         int                     (*callback)(int status,
 356                                             struct ib_sa_multicast *multicast);
 357         void                    *context;
 358 };
 359
 360 /**
 361  * ib_sa_join_multicast - Initiates a join request to the specified multicast
 362  *   group.
 363  * @client: SA client
 364  * @device: Device associated with the multicast group.
 365  * @port_num: Port on the specified device to associate with the multicast
 366  *   group.
 367  * @rec: SA multicast member record specifying group attributes.
 368  * @comp_mask: Component mask indicating which group attributes of %rec are
 369  *   valid.
 370  * @gfp_mask: GFP mask for memory allocations.
 371  * @callback: User callback invoked once the join operation completes.
 372  * @context: User specified context stored with the ib_sa_multicast structure.
 373  *
 374  * This call initiates a multicast join request with the SA for the specified
 375  * multicast group.  If the join operation is started successfully, it returns
 376  * an ib_sa_multicast structure that is used to track the multicast operation.
 377  * Users must free this structure by calling ib_free_multicast, even if the
 378  * join operation later fails.  (The callback status is non-zero.)
 379  *
 380  * If the join operation fails; status will be non-zero, with the following
 381  * failures possible:
 382  * -ETIMEDOUT: The request timed out.
 383  * -EIO: An error occurred sending the query.
 384  * -EINVAL: The MCMemberRecord values differed from the existing group's.
 385  * -ENETRESET: Indicates that an fatal error has occurred on the multicast
 386  *   group, and the user must rejoin the group to continue using it.
 387  */
 388 struct ib_sa_multicast *ib_sa_join_multicast(struct ib_sa_client *client,
 389                                              struct ib_device *device, u8 port_num,
 390                                              struct ib_sa_mcmember_rec *rec,
 391                                              ib_sa_comp_mask comp_mask, gfp_t gfp_mask,
 392                                              int (*callback)(int status,
 393                                                              struct ib_sa_multicast
 394                                                                     *multicast),
 395                                              void *context);
 396
 397 /**
 398  * ib_free_multicast - Frees the multicast tracking structure, and releases
 399  *    any reference on the multicast group.
 400  * @multicast: Multicast tracking structure allocated by ib_join_multicast.
 401  *
 402  * This call blocks until the multicast identifier is destroyed.  It may
 403  * not be called from within the multicast callback; however, returning a non-
 404  * zero value from the callback will result in destroying the multicast
 405  * tracking structure.
 406  */
 407 void ib_sa_free_multicast(struct ib_sa_multicast *multicast);
 408
 409 /**
 410  * ib_get_mcmember_rec - Looks up a multicast member record by its MGID and
 411  *   returns it if found.
 412  * @device: Device associated with the multicast group.
 413  * @port_num: Port on the specified device to associate with the multicast
 414  *   group.
 415  * @mgid: MGID of multicast group.
 416  * @rec: Location to copy SA multicast member record.
 417  */
 418 int ib_sa_get_mcmember_rec(struct ib_device *device, u8 port_num,
 419                            union ib_gid *mgid, struct ib_sa_mcmember_rec *rec);
 420
 421 /**
 422  * ib_init_ah_from_mcmember - Initialize address handle attributes based on
 423  * an SA multicast member record.
 424  */
 425 int ib_init_ah_from_mcmember(struct ib_device *device, u8 port_num,
 426                              struct ib_sa_mcmember_rec *rec,
 427                              struct net_device *ndev,
 428                              enum ib_gid_type gid_type,
 429                              struct ib_ah_attr *ah_attr);
 430
 431 /**
 432  * ib_init_ah_from_path - Initialize address handle attributes based on an SA
 433  *   path record.
 434  */
 435 int ib_init_ah_from_path(struct ib_device *device, u8 port_num,
 436                          struct ib_sa_path_rec *rec,
 437                          struct ib_ah_attr *ah_attr);
 438
 439 /**
 440  * ib_sa_pack_path - Conert a path record from struct ib_sa_path_rec
 441  * to IB MAD wire format.
 442  */
 443 void ib_sa_pack_path(struct ib_sa_path_rec *rec, void *attribute);
 444
 445 /**
 446  * ib_sa_unpack_path - Convert a path record from MAD format to struct
 447  * ib_sa_path_rec.
 448  */
 449 void ib_sa_unpack_path(void *attribute, struct ib_sa_path_rec *rec);
 450
 451 /* Support GuidInfoRecord */
 452 int ib_sa_guid_info_rec_query(struct ib_sa_client *client,
 453                               struct ib_device *device, u8 port_num,
 454                               struct ib_sa_guidinfo_rec *rec,
 455                               ib_sa_comp_mask comp_mask, u8 method,
 456                               int timeout_ms, gfp_t gfp_mask,
 457                               void (*callback)(int status,
 458                                                struct ib_sa_guidinfo_rec *resp,
 459                                                void *context),
 460                               void *context,
 461                               struct ib_sa_query **sa_query);
 462
 463 /* Support get SA ClassPortInfo */
 464 int ib_sa_classport_info_rec_query(struct ib_sa_client *client,
 465                                    struct ib_device *device, u8 port_num,
 466                                    int timeout_ms, gfp_t gfp_mask,
 467                                    void (*callback)(int status,
 468                                                     struct ib_class_port_info *resp,
 469                                                     void *context),
 470                                    void *context,
 471                                    struct ib_sa_query **sa_query);
 472
 473 #endif /* IB_SA_H */