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 /*
  95  * Structures for SA records are named "struct ib_sa_xxx_rec."  No
  96  * attempt is made to pack structures to match the physical layout of
  97  * SA records in SA MADs; all packing and unpacking is handled by the
  98  * SA query code.
  99  *
 100  * For a record with structure ib_sa_xxx_rec, the naming convention
 101  * for the component mask value for field yyy is IB_SA_XXX_REC_YYY (we
 102  * never use different abbreviations or otherwise change the spelling
 103  * of xxx/yyy between ib_sa_xxx_rec.yyy and IB_SA_XXX_REC_YYY).
 104  *
 105  * Reserved rows are indicated with comments to help maintainability.
 106  */
 107
 108 /* reserved:                                                             0 */
 109 /* reserved:                                                             1 */
 110 #define IB_SA_PATH_REC_DGID                             IB_SA_COMP_MASK( 2)
 111 #define IB_SA_PATH_REC_SGID                             IB_SA_COMP_MASK( 3)
 112 #define IB_SA_PATH_REC_DLID                             IB_SA_COMP_MASK( 4)
 113 #define IB_SA_PATH_REC_SLID                             IB_SA_COMP_MASK( 5)
 114 #define IB_SA_PATH_REC_RAW_TRAFFIC                      IB_SA_COMP_MASK( 6)
 115 /* reserved:                                                             7 */
 116 #define IB_SA_PATH_REC_FLOW_LABEL                       IB_SA_COMP_MASK( 8)
 117 #define IB_SA_PATH_REC_HOP_LIMIT                        IB_SA_COMP_MASK( 9)
 118 #define IB_SA_PATH_REC_TRAFFIC_CLASS                    IB_SA_COMP_MASK(10)
 119 #define IB_SA_PATH_REC_REVERSIBLE                       IB_SA_COMP_MASK(11)
 120 #define IB_SA_PATH_REC_NUMB_PATH                        IB_SA_COMP_MASK(12)
 121 #define IB_SA_PATH_REC_PKEY                             IB_SA_COMP_MASK(13)
 122 /* reserved:                                                            14 */
 123 #define IB_SA_PATH_REC_SL                               IB_SA_COMP_MASK(15)
 124 #define IB_SA_PATH_REC_MTU_SELECTOR                     IB_SA_COMP_MASK(16)
 125 #define IB_SA_PATH_REC_MTU                              IB_SA_COMP_MASK(17)
 126 #define IB_SA_PATH_REC_RATE_SELECTOR                    IB_SA_COMP_MASK(18)
 127 #define IB_SA_PATH_REC_RATE                             IB_SA_COMP_MASK(19)
 128 #define IB_SA_PATH_REC_PACKET_LIFE_TIME_SELECTOR        IB_SA_COMP_MASK(20)
 129 #define IB_SA_PATH_REC_PACKET_LIFE_TIME                 IB_SA_COMP_MASK(21)
 130 #define IB_SA_PATH_REC_PREFERENCE                       IB_SA_COMP_MASK(22)
 131
 132 struct ib_sa_path_rec {
 133         /* reserved */
 134         /* reserved */
 135         union ib_gid dgid;
 136         union ib_gid sgid;
 137         __be16       dlid;
 138         __be16       slid;
 139         int          raw_traffic;
 140         /* reserved */
 141         __be32       flow_label;
 142         u8           hop_limit;
 143         u8           traffic_class;
 144         int          reversible;
 145         u8           numb_path;
 146         __be16       pkey;
 147         /* reserved */
 148         u8           sl;
 149         u8           mtu_selector;
 150         u8           mtu;
 151         u8           rate_selector;
 152         u8           rate;
 153         u8           packet_life_time_selector;
 154         u8           packet_life_time;
 155         u8           preference;
 156 };
 157
 158 #define IB_SA_MCMEMBER_REC_MGID                         IB_SA_COMP_MASK( 0)
 159 #define IB_SA_MCMEMBER_REC_PORT_GID                     IB_SA_COMP_MASK( 1)
 160 #define IB_SA_MCMEMBER_REC_QKEY                         IB_SA_COMP_MASK( 2)
 161 #define IB_SA_MCMEMBER_REC_MLID                         IB_SA_COMP_MASK( 3)
 162 #define IB_SA_MCMEMBER_REC_MTU_SELECTOR                 IB_SA_COMP_MASK( 4)
 163 #define IB_SA_MCMEMBER_REC_MTU                          IB_SA_COMP_MASK( 5)
 164 #define IB_SA_MCMEMBER_REC_TRAFFIC_CLASS                IB_SA_COMP_MASK( 6)
 165 #define IB_SA_MCMEMBER_REC_PKEY                         IB_SA_COMP_MASK( 7)
 166 #define IB_SA_MCMEMBER_REC_RATE_SELECTOR                IB_SA_COMP_MASK( 8)
 167 #define IB_SA_MCMEMBER_REC_RATE                         IB_SA_COMP_MASK( 9)
 168 #define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME_SELECTOR    IB_SA_COMP_MASK(10)
 169 #define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME             IB_SA_COMP_MASK(11)
 170 #define IB_SA_MCMEMBER_REC_SL                           IB_SA_COMP_MASK(12)
 171 #define IB_SA_MCMEMBER_REC_FLOW_LABEL                   IB_SA_COMP_MASK(13)
 172 #define IB_SA_MCMEMBER_REC_HOP_LIMIT                    IB_SA_COMP_MASK(14)
 173 #define IB_SA_MCMEMBER_REC_SCOPE                        IB_SA_COMP_MASK(15)
 174 #define IB_SA_MCMEMBER_REC_JOIN_STATE                   IB_SA_COMP_MASK(16)
 175 #define IB_SA_MCMEMBER_REC_PROXY_JOIN                   IB_SA_COMP_MASK(17)
 176
 177 struct ib_sa_mcmember_rec {
 178         union ib_gid mgid;
 179         union ib_gid port_gid;
 180         __be32       qkey;
 181         __be16       mlid;
 182         u8           mtu_selector;
 183         u8           mtu;
 184         u8           traffic_class;
 185         __be16       pkey;
 186         u8           rate_selector;
 187         u8           rate;
 188         u8           packet_life_time_selector;
 189         u8           packet_life_time;
 190         u8           sl;
 191         __be32       flow_label;
 192         u8           hop_limit;
 193         u8           scope;
 194         u8           join_state;
 195         int          proxy_join;
 196 };
 197
 198 /* Service Record Component Mask Sec 15.2.5.14 Ver 1.1  */
 199 #define IB_SA_SERVICE_REC_SERVICE_ID                    IB_SA_COMP_MASK( 0)
 200 #define IB_SA_SERVICE_REC_SERVICE_GID                   IB_SA_COMP_MASK( 1)
 201 #define IB_SA_SERVICE_REC_SERVICE_PKEY                  IB_SA_COMP_MASK( 2)
 202 /* reserved:                                                             3 */
 203 #define IB_SA_SERVICE_REC_SERVICE_LEASE                 IB_SA_COMP_MASK( 4)
 204 #define IB_SA_SERVICE_REC_SERVICE_KEY                   IB_SA_COMP_MASK( 5)
 205 #define IB_SA_SERVICE_REC_SERVICE_NAME                  IB_SA_COMP_MASK( 6)
 206 #define IB_SA_SERVICE_REC_SERVICE_DATA8_0               IB_SA_COMP_MASK( 7)
 207 #define IB_SA_SERVICE_REC_SERVICE_DATA8_1               IB_SA_COMP_MASK( 8)
 208 #define IB_SA_SERVICE_REC_SERVICE_DATA8_2               IB_SA_COMP_MASK( 9)
 209 #define IB_SA_SERVICE_REC_SERVICE_DATA8_3               IB_SA_COMP_MASK(10)
 210 #define IB_SA_SERVICE_REC_SERVICE_DATA8_4               IB_SA_COMP_MASK(11)
 211 #define IB_SA_SERVICE_REC_SERVICE_DATA8_5               IB_SA_COMP_MASK(12)
 212 #define IB_SA_SERVICE_REC_SERVICE_DATA8_6               IB_SA_COMP_MASK(13)
 213 #define IB_SA_SERVICE_REC_SERVICE_DATA8_7               IB_SA_COMP_MASK(14)
 214 #define IB_SA_SERVICE_REC_SERVICE_DATA8_8               IB_SA_COMP_MASK(15)
 215 #define IB_SA_SERVICE_REC_SERVICE_DATA8_9               IB_SA_COMP_MASK(16)
 216 #define IB_SA_SERVICE_REC_SERVICE_DATA8_10              IB_SA_COMP_MASK(17)
 217 #define IB_SA_SERVICE_REC_SERVICE_DATA8_11              IB_SA_COMP_MASK(18)
 218 #define IB_SA_SERVICE_REC_SERVICE_DATA8_12              IB_SA_COMP_MASK(19)
 219 #define IB_SA_SERVICE_REC_SERVICE_DATA8_13              IB_SA_COMP_MASK(20)
 220 #define IB_SA_SERVICE_REC_SERVICE_DATA8_14              IB_SA_COMP_MASK(21)
 221 #define IB_SA_SERVICE_REC_SERVICE_DATA8_15              IB_SA_COMP_MASK(22)
 222 #define IB_SA_SERVICE_REC_SERVICE_DATA16_0              IB_SA_COMP_MASK(23)
 223 #define IB_SA_SERVICE_REC_SERVICE_DATA16_1              IB_SA_COMP_MASK(24)
 224 #define IB_SA_SERVICE_REC_SERVICE_DATA16_2              IB_SA_COMP_MASK(25)
 225 #define IB_SA_SERVICE_REC_SERVICE_DATA16_3              IB_SA_COMP_MASK(26)
 226 #define IB_SA_SERVICE_REC_SERVICE_DATA16_4              IB_SA_COMP_MASK(27)
 227 #define IB_SA_SERVICE_REC_SERVICE_DATA16_5              IB_SA_COMP_MASK(28)
 228 #define IB_SA_SERVICE_REC_SERVICE_DATA16_6              IB_SA_COMP_MASK(29)
 229 #define IB_SA_SERVICE_REC_SERVICE_DATA16_7              IB_SA_COMP_MASK(30)
 230 #define IB_SA_SERVICE_REC_SERVICE_DATA32_0              IB_SA_COMP_MASK(31)
 231 #define IB_SA_SERVICE_REC_SERVICE_DATA32_1              IB_SA_COMP_MASK(32)
 232 #define IB_SA_SERVICE_REC_SERVICE_DATA32_2              IB_SA_COMP_MASK(33)
 233 #define IB_SA_SERVICE_REC_SERVICE_DATA32_3              IB_SA_COMP_MASK(34)
 234 #define IB_SA_SERVICE_REC_SERVICE_DATA64_0              IB_SA_COMP_MASK(35)
 235 #define IB_SA_SERVICE_REC_SERVICE_DATA64_1              IB_SA_COMP_MASK(36)
 236
 237 #define IB_DEFAULT_SERVICE_LEASE        0xFFFFFFFF
 238
 239 struct ib_sa_service_rec {
 240         u64             id;
 241         union ib_gid    gid;
 242         __be16          pkey;
 243         /* reserved */
 244         u32             lease;
 245         u8              key[16];
 246         u8              name[64];
 247         u8              data8[16];
 248         u16             data16[8];
 249         u32             data32[4];
 250         u64             data64[2];
 251 };
 252
 253 struct ib_sa_query;
 254
 255 void ib_sa_cancel_query(int id, struct ib_sa_query *query);
 256
 257 int ib_sa_path_rec_get(struct ib_device *device, u8 port_num,
 258                        struct ib_sa_path_rec *rec,
 259                        ib_sa_comp_mask comp_mask,
 260                        int timeout_ms, gfp_t gfp_mask,
 261                        void (*callback)(int status,
 262                                         struct ib_sa_path_rec *resp,
 263                                         void *context),
 264                        void *context,
 265                        struct ib_sa_query **query);
 266
 267 int ib_sa_mcmember_rec_query(struct ib_device *device, u8 port_num,
 268                              u8 method,
 269                              struct ib_sa_mcmember_rec *rec,
 270                              ib_sa_comp_mask comp_mask,
 271                              int timeout_ms, gfp_t gfp_mask,
 272                              void (*callback)(int status,
 273                                               struct ib_sa_mcmember_rec *resp,
 274                                               void *context),
 275                              void *context,
 276                              struct ib_sa_query **query);
 277
 278 int ib_sa_service_rec_query(struct ib_device *device, u8 port_num,
 279                          u8 method,
 280                          struct ib_sa_service_rec *rec,
 281                          ib_sa_comp_mask comp_mask,
 282                          int timeout_ms, gfp_t gfp_mask,
 283                          void (*callback)(int status,
 284                                           struct ib_sa_service_rec *resp,
 285                                           void *context),
 286                          void *context,
 287                          struct ib_sa_query **sa_query);
 288
 289 /**
 290  * ib_sa_mcmember_rec_set - Start an MCMember set query
 291  * @device:device to send query on
 292  * @port_num: port number to send query on
 293  * @rec:MCMember Record to send in query
 294  * @comp_mask:component mask to send in query
 295  * @timeout_ms:time to wait for response
 296  * @gfp_mask:GFP mask to use for internal allocations
 297  * @callback:function called when query completes, times out or is
 298  * canceled
 299  * @context:opaque user context passed to callback
 300  * @sa_query:query context, used to cancel query
 301  *
 302  * Send an MCMember Set query to the SA (eg to join a multicast
 303  * group).  The callback function will be called when the query
 304  * completes (or fails); status is 0 for a successful response, -EINTR
 305  * if the query is canceled, -ETIMEDOUT is the query timed out, or
 306  * -EIO if an error occurred sending the query.  The resp parameter of
 307  * the callback is only valid if status is 0.
 308  *
 309  * If the return value of ib_sa_mcmember_rec_set() is negative, it is
 310  * an error code.  Otherwise it is a query ID that can be used to
 311  * cancel the query.
 312  */
 313 static inline int
 314 ib_sa_mcmember_rec_set(struct ib_device *device, u8 port_num,
 315                        struct ib_sa_mcmember_rec *rec,
 316                        ib_sa_comp_mask comp_mask,
 317                        int timeout_ms, gfp_t gfp_mask,
 318                        void (*callback)(int status,
 319                                         struct ib_sa_mcmember_rec *resp,
 320                                         void *context),
 321                        void *context,
 322                        struct ib_sa_query **query)
 323 {
 324         return ib_sa_mcmember_rec_query(device, port_num,
 325                                         IB_MGMT_METHOD_SET,
 326                                         rec, comp_mask,
 327                                         timeout_ms, gfp_mask, callback,
 328                                         context, query);
 329 }
 330
 331 /**
 332  * ib_sa_mcmember_rec_delete - Start an MCMember delete query
 333  * @device:device to send query on
 334  * @port_num: port number to send query on
 335  * @rec:MCMember Record to send in query
 336  * @comp_mask:component mask to send in query
 337  * @timeout_ms:time to wait for response
 338  * @gfp_mask:GFP mask to use for internal allocations
 339  * @callback:function called when query completes, times out or is
 340  * canceled
 341  * @context:opaque user context passed to callback
 342  * @sa_query:query context, used to cancel query
 343  *
 344  * Send an MCMember Delete query to the SA (eg to leave a multicast
 345  * group).  The callback function will be called when the query
 346  * completes (or fails); status is 0 for a successful response, -EINTR
 347  * if the query is canceled, -ETIMEDOUT is the query timed out, or
 348  * -EIO if an error occurred sending the query.  The resp parameter of
 349  * the callback is only valid if status is 0.
 350  *
 351  * If the return value of ib_sa_mcmember_rec_delete() is negative, it
 352  * is an error code.  Otherwise it is a query ID that can be used to
 353  * cancel the query.
 354  */
 355 static inline int
 356 ib_sa_mcmember_rec_delete(struct ib_device *device, u8 port_num,
 357                           struct ib_sa_mcmember_rec *rec,
 358                           ib_sa_comp_mask comp_mask,
 359                           int timeout_ms, gfp_t gfp_mask,
 360                           void (*callback)(int status,
 361                                            struct ib_sa_mcmember_rec *resp,
 362                                            void *context),
 363                           void *context,
 364                           struct ib_sa_query **query)
 365 {
 366         return ib_sa_mcmember_rec_query(device, port_num,
 367                                         IB_SA_METHOD_DELETE,
 368                                         rec, comp_mask,
 369                                         timeout_ms, gfp_mask, callback,
 370                                         context, query);
 371 }
 372
 373 /**
 374  * ib_init_ah_from_path - Initialize address handle attributes based on an SA
 375  *   path record.
 376  */
 377 int ib_init_ah_from_path(struct ib_device *device, u8 port_num,
 378                          struct ib_sa_path_rec *rec,
 379                          struct ib_ah_attr *ah_attr);
 380
 381 #endif /* IB_SA_H */