include/rdma/ib_sa.h

   1 /*
   2  * Copyright (c) 2004 Topspin Communications.  All rights reserved.
   3  * Copyright (c) 2005 Voltaire, Inc.  All rights reserved.
   4  *
   5  * This software is available to you under a choice of one of two
   6  * licenses.  You may choose to be licensed under the terms of the GNU
   7  * General Public License (GPL) Version 2, available from the file
   8  * COPYING in the main directory of this source tree, or the
   9  * OpenIB.org BSD license below:
  10  *
  11  *     Redistribution and use in source and binary forms, with or
  12  *     without modification, are permitted provided that the following
  13  *     conditions are met:
  14  *
  15  *      - Redistributions of source code must retain the above
  16  *        copyright notice, this list of conditions and the following
  17  *        disclaimer.
  18  *
  19  *      - Redistributions in binary form must reproduce the above
  20  *        copyright notice, this list of conditions and the following
  21  *        disclaimer in the documentation and/or other materials
  22  *        provided with the distribution.
  23  *
  24  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  28  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  29  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  30  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  31  * SOFTWARE.
  32  *
  33  * $Id: ib_sa.h 2811 2005-07-06 18:11:43Z halr $
  34  */
  35
  36 #ifndef IB_SA_H
  37 #define IB_SA_H
  38
  39 #include <linux/compiler.h>
  40
  41 #include <rdma/ib_verbs.h>
  42 #include <rdma/ib_mad.h>
  43
  44 enum {
  45         IB_SA_CLASS_VERSION             = 2,    /* IB spec version 1.1/1.2 */
  46
  47         IB_SA_METHOD_GET_TABLE          = 0x12,
  48         IB_SA_METHOD_GET_TABLE_RESP     = 0x92,
  49         IB_SA_METHOD_DELETE             = 0x15,
  50         IB_SA_METHOD_DELETE_RESP        = 0x95,
  51         IB_SA_METHOD_GET_MULTI          = 0x14,
  52         IB_SA_METHOD_GET_MULTI_RESP     = 0x94,
  53         IB_SA_METHOD_GET_TRACE_TBL      = 0x13
  54 };
  55
  56 enum {
  57         IB_SA_ATTR_CLASS_PORTINFO    = 0x01,
  58         IB_SA_ATTR_NOTICE            = 0x02,
  59         IB_SA_ATTR_INFORM_INFO       = 0x03,
  60         IB_SA_ATTR_NODE_REC          = 0x11,
  61         IB_SA_ATTR_PORT_INFO_REC     = 0x12,
  62         IB_SA_ATTR_SL2VL_REC         = 0x13,
  63         IB_SA_ATTR_SWITCH_REC        = 0x14,
  64         IB_SA_ATTR_LINEAR_FDB_REC    = 0x15,
  65         IB_SA_ATTR_RANDOM_FDB_REC    = 0x16,
  66         IB_SA_ATTR_MCAST_FDB_REC     = 0x17,
  67         IB_SA_ATTR_SM_INFO_REC       = 0x18,
  68         IB_SA_ATTR_LINK_REC          = 0x20,
  69         IB_SA_ATTR_GUID_INFO_REC     = 0x30,
  70         IB_SA_ATTR_SERVICE_REC       = 0x31,
  71         IB_SA_ATTR_PARTITION_REC     = 0x33,
  72         IB_SA_ATTR_PATH_REC          = 0x35,
  73         IB_SA_ATTR_VL_ARB_REC        = 0x36,
  74         IB_SA_ATTR_MC_MEMBER_REC     = 0x38,
  75         IB_SA_ATTR_TRACE_REC         = 0x39,
  76         IB_SA_ATTR_MULTI_PATH_REC    = 0x3a,
  77         IB_SA_ATTR_SERVICE_ASSOC_REC = 0x3b,
  78         IB_SA_ATTR_INFORM_INFO_REC   = 0xf3
  79 };
  80
  81 enum ib_sa_selector {
  82         IB_SA_GTE  = 0,
  83         IB_SA_LTE  = 1,
  84         IB_SA_EQ   = 2,
  85         /*
  86          * The meaning of "best" depends on the attribute: for
  87          * example, for MTU best will return the largest available
  88          * MTU, while for packet life time, best will return the
  89          * smallest available life time.
  90          */
  91         IB_SA_BEST = 3
  92 };
  93
  94 enum ib_sa_rate {
  95         IB_SA_RATE_2_5_GBPS = 2,
  96         IB_SA_RATE_5_GBPS   = 5,
  97         IB_SA_RATE_10_GBPS  = 3,
  98         IB_SA_RATE_20_GBPS  = 6,
  99         IB_SA_RATE_30_GBPS  = 4,
 100         IB_SA_RATE_40_GBPS  = 7,
 101         IB_SA_RATE_60_GBPS  = 8,
 102         IB_SA_RATE_80_GBPS  = 9,
 103         IB_SA_RATE_120_GBPS = 10
 104 };
 105
 106 static inline int ib_sa_rate_enum_to_int(enum ib_sa_rate rate)
 107 {
 108         switch (rate) {
 109         case IB_SA_RATE_2_5_GBPS: return  1;
 110         case IB_SA_RATE_5_GBPS:   return  2;
 111         case IB_SA_RATE_10_GBPS:  return  4;
 112         case IB_SA_RATE_20_GBPS:  return  8;
 113         case IB_SA_RATE_30_GBPS:  return 12;
 114         case IB_SA_RATE_40_GBPS:  return 16;
 115         case IB_SA_RATE_60_GBPS:  return 24;
 116         case IB_SA_RATE_80_GBPS:  return 32;
 117         case IB_SA_RATE_120_GBPS: return 48;
 118         default:                  return -1;
 119         }
 120 }
 121
 122 /*
 123  * Structures for SA records are named "struct ib_sa_xxx_rec."  No
 124  * attempt is made to pack structures to match the physical layout of
 125  * SA records in SA MADs; all packing and unpacking is handled by the
 126  * SA query code.
 127  *
 128  * For a record with structure ib_sa_xxx_rec, the naming convention
 129  * for the component mask value for field yyy is IB_SA_XXX_REC_YYY (we
 130  * never use different abbreviations or otherwise change the spelling
 131  * of xxx/yyy between ib_sa_xxx_rec.yyy and IB_SA_XXX_REC_YYY).
 132  *
 133  * Reserved rows are indicated with comments to help maintainability.
 134  */
 135
 136 /* reserved:                                                             0 */
 137 /* reserved:                                                             1 */
 138 #define IB_SA_PATH_REC_DGID                             IB_SA_COMP_MASK( 2)
 139 #define IB_SA_PATH_REC_SGID                             IB_SA_COMP_MASK( 3)
 140 #define IB_SA_PATH_REC_DLID                             IB_SA_COMP_MASK( 4)
 141 #define IB_SA_PATH_REC_SLID                             IB_SA_COMP_MASK( 5)
 142 #define IB_SA_PATH_REC_RAW_TRAFFIC                      IB_SA_COMP_MASK( 6)
 143 /* reserved:                                                             7 */
 144 #define IB_SA_PATH_REC_FLOW_LABEL                       IB_SA_COMP_MASK( 8)
 145 #define IB_SA_PATH_REC_HOP_LIMIT                        IB_SA_COMP_MASK( 9)
 146 #define IB_SA_PATH_REC_TRAFFIC_CLASS                    IB_SA_COMP_MASK(10)
 147 #define IB_SA_PATH_REC_REVERSIBLE                       IB_SA_COMP_MASK(11)
 148 #define IB_SA_PATH_REC_NUMB_PATH                        IB_SA_COMP_MASK(12)
 149 #define IB_SA_PATH_REC_PKEY                             IB_SA_COMP_MASK(13)
 150 /* reserved:                                                            14 */
 151 #define IB_SA_PATH_REC_SL                               IB_SA_COMP_MASK(15)
 152 #define IB_SA_PATH_REC_MTU_SELECTOR                     IB_SA_COMP_MASK(16)
 153 #define IB_SA_PATH_REC_MTU                              IB_SA_COMP_MASK(17)
 154 #define IB_SA_PATH_REC_RATE_SELECTOR                    IB_SA_COMP_MASK(18)
 155 #define IB_SA_PATH_REC_RATE                             IB_SA_COMP_MASK(19)
 156 #define IB_SA_PATH_REC_PACKET_LIFE_TIME_SELECTOR        IB_SA_COMP_MASK(20)
 157 #define IB_SA_PATH_REC_PACKET_LIFE_TIME                 IB_SA_COMP_MASK(21)
 158 #define IB_SA_PATH_REC_PREFERENCE                       IB_SA_COMP_MASK(22)
 159
 160 struct ib_sa_path_rec {
 161         /* reserved */
 162         /* reserved */
 163         union ib_gid dgid;
 164         union ib_gid sgid;
 165         __be16       dlid;
 166         __be16       slid;
 167         int          raw_traffic;
 168         /* reserved */
 169         __be32       flow_label;
 170         u8           hop_limit;
 171         u8           traffic_class;
 172         int          reversible;
 173         u8           numb_path;
 174         __be16       pkey;
 175         /* reserved */
 176         u8           sl;
 177         u8           mtu_selector;
 178         u8           mtu;
 179         u8           rate_selector;
 180         u8           rate;
 181         u8           packet_life_time_selector;
 182         u8           packet_life_time;
 183         u8           preference;
 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
 205 struct 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
 267 struct 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 struct ib_sa_query;
 282
 283 void ib_sa_cancel_query(int id, struct ib_sa_query *query);
 284
 285 int ib_sa_path_rec_get(struct ib_device *device, u8 port_num,
 286                        struct ib_sa_path_rec *rec,
 287                        ib_sa_comp_mask comp_mask,
 288                        int timeout_ms, gfp_t gfp_mask,
 289                        void (*callback)(int status,
 290                                         struct ib_sa_path_rec *resp,
 291                                         void *context),
 292                        void *context,
 293                        struct ib_sa_query **query);
 294
 295 int ib_sa_mcmember_rec_query(struct ib_device *device, u8 port_num,
 296                              u8 method,
 297                              struct ib_sa_mcmember_rec *rec,
 298                              ib_sa_comp_mask comp_mask,
 299                              int timeout_ms, gfp_t gfp_mask,
 300                              void (*callback)(int status,
 301                                               struct ib_sa_mcmember_rec *resp,
 302                                               void *context),
 303                              void *context,
 304                              struct ib_sa_query **query);
 305
 306 int ib_sa_service_rec_query(struct ib_device *device, u8 port_num,
 307                          u8 method,
 308                          struct ib_sa_service_rec *rec,
 309                          ib_sa_comp_mask comp_mask,
 310                          int timeout_ms, gfp_t gfp_mask,
 311                          void (*callback)(int status,
 312                                           struct ib_sa_service_rec *resp,
 313                                           void *context),
 314                          void *context,
 315                          struct ib_sa_query **sa_query);
 316
 317 /**
 318  * ib_sa_mcmember_rec_set - Start an MCMember set query
 319  * @device:device to send query on
 320  * @port_num: port number to send query on
 321  * @rec:MCMember Record to send in query
 322  * @comp_mask:component mask to send in query
 323  * @timeout_ms:time to wait for response
 324  * @gfp_mask:GFP mask to use for internal allocations
 325  * @callback:function called when query completes, times out or is
 326  * canceled
 327  * @context:opaque user context passed to callback
 328  * @sa_query:query context, used to cancel query
 329  *
 330  * Send an MCMember Set query to the SA (eg to join a multicast
 331  * group).  The callback function will be called when the query
 332  * completes (or fails); status is 0 for a successful response, -EINTR
 333  * if the query is canceled, -ETIMEDOUT is the query timed out, or
 334  * -EIO if an error occurred sending the query.  The resp parameter of
 335  * the callback is only valid if status is 0.
 336  *
 337  * If the return value of ib_sa_mcmember_rec_set() is negative, it is
 338  * an error code.  Otherwise it is a query ID that can be used to
 339  * cancel the query.
 340  */
 341 static inline int
 342 ib_sa_mcmember_rec_set(struct ib_device *device, u8 port_num,
 343                        struct ib_sa_mcmember_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_mcmember_rec *resp,
 348                                         void *context),
 349                        void *context,
 350                        struct ib_sa_query **query)
 351 {
 352         return ib_sa_mcmember_rec_query(device, port_num,
 353                                         IB_MGMT_METHOD_SET,
 354                                         rec, comp_mask,
 355                                         timeout_ms, gfp_mask, callback,
 356                                         context, query);
 357 }
 358
 359 /**
 360  * ib_sa_mcmember_rec_delete - Start an MCMember delete query
 361  * @device:device to send query on
 362  * @port_num: port number to send query on
 363  * @rec:MCMember Record to send in query
 364  * @comp_mask:component mask to send in query
 365  * @timeout_ms:time to wait for response
 366  * @gfp_mask:GFP mask to use for internal allocations
 367  * @callback:function called when query completes, times out or is
 368  * canceled
 369  * @context:opaque user context passed to callback
 370  * @sa_query:query context, used to cancel query
 371  *
 372  * Send an MCMember Delete query to the SA (eg to leave a multicast
 373  * group).  The callback function will be called when the query
 374  * completes (or fails); status is 0 for a successful response, -EINTR
 375  * if the query is canceled, -ETIMEDOUT is the query timed out, or
 376  * -EIO if an error occurred sending the query.  The resp parameter of
 377  * the callback is only valid if status is 0.
 378  *
 379  * If the return value of ib_sa_mcmember_rec_delete() is negative, it
 380  * is an error code.  Otherwise it is a query ID that can be used to
 381  * cancel the query.
 382  */
 383 static inline int
 384 ib_sa_mcmember_rec_delete(struct ib_device *device, u8 port_num,
 385                           struct ib_sa_mcmember_rec *rec,
 386                           ib_sa_comp_mask comp_mask,
 387                           int timeout_ms, gfp_t gfp_mask,
 388                           void (*callback)(int status,
 389                                            struct ib_sa_mcmember_rec *resp,
 390                                            void *context),
 391                           void *context,
 392                           struct ib_sa_query **query)
 393 {
 394         return ib_sa_mcmember_rec_query(device, port_num,
 395                                         IB_SA_METHOD_DELETE,
 396                                         rec, comp_mask,
 397                                         timeout_ms, gfp_mask, callback,
 398                                         context, query);
 399 }
 400
 401
 402 #endif /* IB_SA_H */