1 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ 2 /* 3 * Copyright (c) 2004 Topspin Communications. All rights reserved. 4 * Copyright (c) 2005 Voltaire, Inc. All rights reserved. 5 * Copyright (c) 2006 Intel Corporation. All rights reserved. 6 */ 7 8 #ifndef IB_SA_H 9 #define IB_SA_H 10 11 #include <linux/completion.h> 12 #include <linux/compiler.h> 13 14 #include <linux/atomic.h> 15 #include <linux/netdevice.h> 16 17 #include <rdma/ib_verbs.h> 18 #include <rdma/ib_mad.h> 19 #include <rdma/ib_addr.h> 20 #include <rdma/opa_addr.h> 21 22 enum { 23 IB_SA_CLASS_VERSION = 2, /* IB spec version 1.1/1.2 */ 24 25 IB_SA_METHOD_GET_TABLE = 0x12, 26 IB_SA_METHOD_GET_TABLE_RESP = 0x92, 27 IB_SA_METHOD_DELETE = 0x15, 28 IB_SA_METHOD_DELETE_RESP = 0x95, 29 IB_SA_METHOD_GET_MULTI = 0x14, 30 IB_SA_METHOD_GET_MULTI_RESP = 0x94, 31 IB_SA_METHOD_GET_TRACE_TBL = 0x13 32 }; 33 34 #define OPA_SA_CLASS_VERSION 0x80 35 enum { 36 IB_SA_ATTR_CLASS_PORTINFO = 0x01, 37 IB_SA_ATTR_NOTICE = 0x02, 38 IB_SA_ATTR_INFORM_INFO = 0x03, 39 IB_SA_ATTR_NODE_REC = 0x11, 40 IB_SA_ATTR_PORT_INFO_REC = 0x12, 41 IB_SA_ATTR_SL2VL_REC = 0x13, 42 IB_SA_ATTR_SWITCH_REC = 0x14, 43 IB_SA_ATTR_LINEAR_FDB_REC = 0x15, 44 IB_SA_ATTR_RANDOM_FDB_REC = 0x16, 45 IB_SA_ATTR_MCAST_FDB_REC = 0x17, 46 IB_SA_ATTR_SM_INFO_REC = 0x18, 47 IB_SA_ATTR_LINK_REC = 0x20, 48 IB_SA_ATTR_GUID_INFO_REC = 0x30, 49 IB_SA_ATTR_SERVICE_REC = 0x31, 50 IB_SA_ATTR_PARTITION_REC = 0x33, 51 IB_SA_ATTR_PATH_REC = 0x35, 52 IB_SA_ATTR_VL_ARB_REC = 0x36, 53 IB_SA_ATTR_MC_MEMBER_REC = 0x38, 54 IB_SA_ATTR_TRACE_REC = 0x39, 55 IB_SA_ATTR_MULTI_PATH_REC = 0x3a, 56 IB_SA_ATTR_SERVICE_ASSOC_REC = 0x3b, 57 IB_SA_ATTR_INFORM_INFO_REC = 0xf3 58 }; 59 60 enum ib_sa_selector { 61 IB_SA_GT = 0, 62 IB_SA_LT = 1, 63 IB_SA_EQ = 2, 64 /* 65 * The meaning of "best" depends on the attribute: for 66 * example, for MTU best will return the largest available 67 * MTU, while for packet life time, best will return the 68 * smallest available life time. 69 */ 70 IB_SA_BEST = 3 71 }; 72 73 /* 74 * There are 4 types of join states: 75 * FullMember, NonMember, SendOnlyNonMember, SendOnlyFullMember. 76 * The order corresponds to JoinState bits in MCMemberRecord. 77 */ 78 enum ib_sa_mc_join_states { 79 FULLMEMBER_JOIN, 80 NONMEMBER_JOIN, 81 SENDONLY_NONMEBER_JOIN, 82 SENDONLY_FULLMEMBER_JOIN, 83 NUM_JOIN_MEMBERSHIP_TYPES, 84 }; 85 86 #define IB_SA_CAP_MASK2_SENDONLY_FULL_MEM_SUPPORT BIT(12) 87 88 /* 89 * Structures for SA records are named "struct ib_sa_xxx_rec." No 90 * attempt is made to pack structures to match the physical layout of 91 * SA records in SA MADs; all packing and unpacking is handled by the 92 * SA query code. 93 * 94 * For a record with structure ib_sa_xxx_rec, the naming convention 95 * for the component mask value for field yyy is IB_SA_XXX_REC_YYY (we 96 * never use different abbreviations or otherwise change the spelling 97 * of xxx/yyy between ib_sa_xxx_rec.yyy and IB_SA_XXX_REC_YYY). 98 * 99 * Reserved rows are indicated with comments to help maintainability. 100 */ 101 102 #define IB_SA_PATH_REC_SERVICE_ID (IB_SA_COMP_MASK( 0) |\ 103 IB_SA_COMP_MASK( 1)) 104 #define IB_SA_PATH_REC_DGID IB_SA_COMP_MASK( 2) 105 #define IB_SA_PATH_REC_SGID IB_SA_COMP_MASK( 3) 106 #define IB_SA_PATH_REC_DLID IB_SA_COMP_MASK( 4) 107 #define IB_SA_PATH_REC_SLID IB_SA_COMP_MASK( 5) 108 #define IB_SA_PATH_REC_RAW_TRAFFIC IB_SA_COMP_MASK( 6) 109 /* reserved: 7 */ 110 #define IB_SA_PATH_REC_FLOW_LABEL IB_SA_COMP_MASK( 8) 111 #define IB_SA_PATH_REC_HOP_LIMIT IB_SA_COMP_MASK( 9) 112 #define IB_SA_PATH_REC_TRAFFIC_CLASS IB_SA_COMP_MASK(10) 113 #define IB_SA_PATH_REC_REVERSIBLE IB_SA_COMP_MASK(11) 114 #define IB_SA_PATH_REC_NUMB_PATH IB_SA_COMP_MASK(12) 115 #define IB_SA_PATH_REC_PKEY IB_SA_COMP_MASK(13) 116 #define IB_SA_PATH_REC_QOS_CLASS IB_SA_COMP_MASK(14) 117 #define IB_SA_PATH_REC_SL IB_SA_COMP_MASK(15) 118 #define IB_SA_PATH_REC_MTU_SELECTOR IB_SA_COMP_MASK(16) 119 #define IB_SA_PATH_REC_MTU IB_SA_COMP_MASK(17) 120 #define IB_SA_PATH_REC_RATE_SELECTOR IB_SA_COMP_MASK(18) 121 #define IB_SA_PATH_REC_RATE IB_SA_COMP_MASK(19) 122 #define IB_SA_PATH_REC_PACKET_LIFE_TIME_SELECTOR IB_SA_COMP_MASK(20) 123 #define IB_SA_PATH_REC_PACKET_LIFE_TIME IB_SA_COMP_MASK(21) 124 #define IB_SA_PATH_REC_PREFERENCE IB_SA_COMP_MASK(22) 125 126 enum sa_path_rec_type { 127 SA_PATH_REC_TYPE_IB, 128 SA_PATH_REC_TYPE_ROCE_V1, 129 SA_PATH_REC_TYPE_ROCE_V2, 130 SA_PATH_REC_TYPE_OPA 131 }; 132 133 struct sa_path_rec_ib { 134 __be16 dlid; 135 __be16 slid; 136 u8 raw_traffic; 137 }; 138 139 /** 140 * struct sa_path_rec_roce - RoCE specific portion of the path record entry 141 * @route_resolved: When set, it indicates that this route is already 142 * resolved for this path record entry. 143 * @dmac: Destination mac address for the given DGID entry 144 * of the path record entry. 145 */ 146 struct sa_path_rec_roce { 147 bool route_resolved; 148 u8 dmac[ETH_ALEN]; 149 }; 150 151 struct sa_path_rec_opa { 152 __be32 dlid; 153 __be32 slid; 154 u8 raw_traffic; 155 u8 l2_8B; 156 u8 l2_10B; 157 u8 l2_9B; 158 u8 l2_16B; 159 u8 qos_type; 160 u8 qos_priority; 161 }; 162 163 struct sa_path_rec { 164 union ib_gid dgid; 165 union ib_gid sgid; 166 __be64 service_id; 167 /* reserved */ 168 __be32 flow_label; 169 u8 hop_limit; 170 u8 traffic_class; 171 u8 reversible; 172 u8 numb_path; 173 __be16 pkey; 174 __be16 qos_class; 175 u8 sl; 176 u8 mtu_selector; 177 u8 mtu; 178 u8 rate_selector; 179 u8 rate; 180 u8 packet_life_time_selector; 181 u8 packet_life_time; 182 u8 preference; 183 union { 184 struct sa_path_rec_ib ib; 185 struct sa_path_rec_roce roce; 186 struct sa_path_rec_opa opa; 187 }; 188 enum sa_path_rec_type rec_type; 189 u32 flags; 190 }; 191 192 struct sa_service_rec { 193 __be64 id; 194 __u8 gid[16]; 195 __be16 pkey; 196 __u8 reserved[2]; 197 __be32 lease; 198 __u8 key[16]; 199 __u8 name[64]; 200 __u8 data_8[16]; 201 __be16 data_16[8]; 202 __be32 data_32[4]; 203 __be64 data_64[2]; 204 }; 205 206 static inline enum ib_gid_type 207 sa_conv_pathrec_to_gid_type(struct sa_path_rec *rec) 208 { 209 switch (rec->rec_type) { 210 case SA_PATH_REC_TYPE_ROCE_V1: 211 return IB_GID_TYPE_ROCE; 212 case SA_PATH_REC_TYPE_ROCE_V2: 213 return IB_GID_TYPE_ROCE_UDP_ENCAP; 214 default: 215 return IB_GID_TYPE_IB; 216 } 217 } 218 219 static inline enum sa_path_rec_type 220 sa_conv_gid_to_pathrec_type(enum ib_gid_type type) 221 { 222 switch (type) { 223 case IB_GID_TYPE_ROCE: 224 return SA_PATH_REC_TYPE_ROCE_V1; 225 case IB_GID_TYPE_ROCE_UDP_ENCAP: 226 return SA_PATH_REC_TYPE_ROCE_V2; 227 default: 228 return SA_PATH_REC_TYPE_IB; 229 } 230 } 231 232 static inline void path_conv_opa_to_ib(struct sa_path_rec *ib, 233 struct sa_path_rec *opa) 234 { 235 if ((be32_to_cpu(opa->opa.dlid) >= 236 be16_to_cpu(IB_MULTICAST_LID_BASE)) || 237 (be32_to_cpu(opa->opa.slid) >= 238 be16_to_cpu(IB_MULTICAST_LID_BASE))) { 239 /* Create OPA GID and zero out the LID */ 240 ib->dgid.global.interface_id 241 = OPA_MAKE_ID(be32_to_cpu(opa->opa.dlid)); 242 ib->dgid.global.subnet_prefix 243 = opa->dgid.global.subnet_prefix; 244 ib->sgid.global.interface_id 245 = OPA_MAKE_ID(be32_to_cpu(opa->opa.slid)); 246 ib->dgid.global.subnet_prefix 247 = opa->dgid.global.subnet_prefix; 248 ib->ib.dlid = 0; 249 250 ib->ib.slid = 0; 251 } else { 252 ib->ib.dlid = htons(ntohl(opa->opa.dlid)); 253 ib->ib.slid = htons(ntohl(opa->opa.slid)); 254 } 255 ib->service_id = opa->service_id; 256 ib->ib.raw_traffic = opa->opa.raw_traffic; 257 } 258 259 static inline void path_conv_ib_to_opa(struct sa_path_rec *opa, 260 struct sa_path_rec *ib) 261 { 262 __be32 slid, dlid; 263 264 if ((ib_is_opa_gid(&ib->sgid)) || 265 (ib_is_opa_gid(&ib->dgid))) { 266 slid = htonl(opa_get_lid_from_gid(&ib->sgid)); 267 dlid = htonl(opa_get_lid_from_gid(&ib->dgid)); 268 } else { 269 slid = htonl(ntohs(ib->ib.slid)); 270 dlid = htonl(ntohs(ib->ib.dlid)); 271 } 272 opa->opa.slid = slid; 273 opa->opa.dlid = dlid; 274 opa->service_id = ib->service_id; 275 opa->opa.raw_traffic = ib->ib.raw_traffic; 276 } 277 278 /* Convert from OPA to IB path record */ 279 static inline void sa_convert_path_opa_to_ib(struct sa_path_rec *dest, 280 struct sa_path_rec *src) 281 { 282 if (src->rec_type != SA_PATH_REC_TYPE_OPA) 283 return; 284 285 *dest = *src; 286 dest->rec_type = SA_PATH_REC_TYPE_IB; 287 path_conv_opa_to_ib(dest, src); 288 } 289 290 /* Convert from IB to OPA path record */ 291 static inline void sa_convert_path_ib_to_opa(struct sa_path_rec *dest, 292 struct sa_path_rec *src) 293 { 294 if (src->rec_type != SA_PATH_REC_TYPE_IB) 295 return; 296 297 /* Do a structure copy and overwrite the relevant fields */ 298 *dest = *src; 299 dest->rec_type = SA_PATH_REC_TYPE_OPA; 300 path_conv_ib_to_opa(dest, src); 301 } 302 303 #define IB_SA_MCMEMBER_REC_MGID IB_SA_COMP_MASK( 0) 304 #define IB_SA_MCMEMBER_REC_PORT_GID IB_SA_COMP_MASK( 1) 305 #define IB_SA_MCMEMBER_REC_QKEY IB_SA_COMP_MASK( 2) 306 #define IB_SA_MCMEMBER_REC_MLID IB_SA_COMP_MASK( 3) 307 #define IB_SA_MCMEMBER_REC_MTU_SELECTOR IB_SA_COMP_MASK( 4) 308 #define IB_SA_MCMEMBER_REC_MTU IB_SA_COMP_MASK( 5) 309 #define IB_SA_MCMEMBER_REC_TRAFFIC_CLASS IB_SA_COMP_MASK( 6) 310 #define IB_SA_MCMEMBER_REC_PKEY IB_SA_COMP_MASK( 7) 311 #define IB_SA_MCMEMBER_REC_RATE_SELECTOR IB_SA_COMP_MASK( 8) 312 #define IB_SA_MCMEMBER_REC_RATE IB_SA_COMP_MASK( 9) 313 #define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME_SELECTOR IB_SA_COMP_MASK(10) 314 #define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME IB_SA_COMP_MASK(11) 315 #define IB_SA_MCMEMBER_REC_SL IB_SA_COMP_MASK(12) 316 #define IB_SA_MCMEMBER_REC_FLOW_LABEL IB_SA_COMP_MASK(13) 317 #define IB_SA_MCMEMBER_REC_HOP_LIMIT IB_SA_COMP_MASK(14) 318 #define IB_SA_MCMEMBER_REC_SCOPE IB_SA_COMP_MASK(15) 319 #define IB_SA_MCMEMBER_REC_JOIN_STATE IB_SA_COMP_MASK(16) 320 #define IB_SA_MCMEMBER_REC_PROXY_JOIN IB_SA_COMP_MASK(17) 321 322 struct ib_sa_mcmember_rec { 323 union ib_gid mgid; 324 union ib_gid port_gid; 325 __be32 qkey; 326 __be16 mlid; 327 u8 mtu_selector; 328 u8 mtu; 329 u8 traffic_class; 330 __be16 pkey; 331 u8 rate_selector; 332 u8 rate; 333 u8 packet_life_time_selector; 334 u8 packet_life_time; 335 u8 sl; 336 __be32 flow_label; 337 u8 hop_limit; 338 u8 scope; 339 u8 join_state; 340 u8 proxy_join; 341 }; 342 343 /* Service Record Component Mask Sec 15.2.5.14 Ver 1.1 */ 344 #define IB_SA_SERVICE_REC_SERVICE_ID IB_SA_COMP_MASK( 0) 345 #define IB_SA_SERVICE_REC_SERVICE_GID IB_SA_COMP_MASK( 1) 346 #define IB_SA_SERVICE_REC_SERVICE_PKEY IB_SA_COMP_MASK( 2) 347 /* reserved: 3 */ 348 #define IB_SA_SERVICE_REC_SERVICE_LEASE IB_SA_COMP_MASK( 4) 349 #define IB_SA_SERVICE_REC_SERVICE_KEY IB_SA_COMP_MASK( 5) 350 #define IB_SA_SERVICE_REC_SERVICE_NAME IB_SA_COMP_MASK( 6) 351 #define IB_SA_SERVICE_REC_SERVICE_DATA8_0 IB_SA_COMP_MASK( 7) 352 #define IB_SA_SERVICE_REC_SERVICE_DATA8_1 IB_SA_COMP_MASK( 8) 353 #define IB_SA_SERVICE_REC_SERVICE_DATA8_2 IB_SA_COMP_MASK( 9) 354 #define IB_SA_SERVICE_REC_SERVICE_DATA8_3 IB_SA_COMP_MASK(10) 355 #define IB_SA_SERVICE_REC_SERVICE_DATA8_4 IB_SA_COMP_MASK(11) 356 #define IB_SA_SERVICE_REC_SERVICE_DATA8_5 IB_SA_COMP_MASK(12) 357 #define IB_SA_SERVICE_REC_SERVICE_DATA8_6 IB_SA_COMP_MASK(13) 358 #define IB_SA_SERVICE_REC_SERVICE_DATA8_7 IB_SA_COMP_MASK(14) 359 #define IB_SA_SERVICE_REC_SERVICE_DATA8_8 IB_SA_COMP_MASK(15) 360 #define IB_SA_SERVICE_REC_SERVICE_DATA8_9 IB_SA_COMP_MASK(16) 361 #define IB_SA_SERVICE_REC_SERVICE_DATA8_10 IB_SA_COMP_MASK(17) 362 #define IB_SA_SERVICE_REC_SERVICE_DATA8_11 IB_SA_COMP_MASK(18) 363 #define IB_SA_SERVICE_REC_SERVICE_DATA8_12 IB_SA_COMP_MASK(19) 364 #define IB_SA_SERVICE_REC_SERVICE_DATA8_13 IB_SA_COMP_MASK(20) 365 #define IB_SA_SERVICE_REC_SERVICE_DATA8_14 IB_SA_COMP_MASK(21) 366 #define IB_SA_SERVICE_REC_SERVICE_DATA8_15 IB_SA_COMP_MASK(22) 367 #define IB_SA_SERVICE_REC_SERVICE_DATA16_0 IB_SA_COMP_MASK(23) 368 #define IB_SA_SERVICE_REC_SERVICE_DATA16_1 IB_SA_COMP_MASK(24) 369 #define IB_SA_SERVICE_REC_SERVICE_DATA16_2 IB_SA_COMP_MASK(25) 370 #define IB_SA_SERVICE_REC_SERVICE_DATA16_3 IB_SA_COMP_MASK(26) 371 #define IB_SA_SERVICE_REC_SERVICE_DATA16_4 IB_SA_COMP_MASK(27) 372 #define IB_SA_SERVICE_REC_SERVICE_DATA16_5 IB_SA_COMP_MASK(28) 373 #define IB_SA_SERVICE_REC_SERVICE_DATA16_6 IB_SA_COMP_MASK(29) 374 #define IB_SA_SERVICE_REC_SERVICE_DATA16_7 IB_SA_COMP_MASK(30) 375 #define IB_SA_SERVICE_REC_SERVICE_DATA32_0 IB_SA_COMP_MASK(31) 376 #define IB_SA_SERVICE_REC_SERVICE_DATA32_1 IB_SA_COMP_MASK(32) 377 #define IB_SA_SERVICE_REC_SERVICE_DATA32_2 IB_SA_COMP_MASK(33) 378 #define IB_SA_SERVICE_REC_SERVICE_DATA32_3 IB_SA_COMP_MASK(34) 379 #define IB_SA_SERVICE_REC_SERVICE_DATA64_0 IB_SA_COMP_MASK(35) 380 #define IB_SA_SERVICE_REC_SERVICE_DATA64_1 IB_SA_COMP_MASK(36) 381 382 #define IB_DEFAULT_SERVICE_LEASE 0xFFFFFFFF 383 384 #define IB_SA_GUIDINFO_REC_LID IB_SA_COMP_MASK(0) 385 #define IB_SA_GUIDINFO_REC_BLOCK_NUM IB_SA_COMP_MASK(1) 386 #define IB_SA_GUIDINFO_REC_RES1 IB_SA_COMP_MASK(2) 387 #define IB_SA_GUIDINFO_REC_RES2 IB_SA_COMP_MASK(3) 388 #define IB_SA_GUIDINFO_REC_GID0 IB_SA_COMP_MASK(4) 389 #define IB_SA_GUIDINFO_REC_GID1 IB_SA_COMP_MASK(5) 390 #define IB_SA_GUIDINFO_REC_GID2 IB_SA_COMP_MASK(6) 391 #define IB_SA_GUIDINFO_REC_GID3 IB_SA_COMP_MASK(7) 392 #define IB_SA_GUIDINFO_REC_GID4 IB_SA_COMP_MASK(8) 393 #define IB_SA_GUIDINFO_REC_GID5 IB_SA_COMP_MASK(9) 394 #define IB_SA_GUIDINFO_REC_GID6 IB_SA_COMP_MASK(10) 395 #define IB_SA_GUIDINFO_REC_GID7 IB_SA_COMP_MASK(11) 396 397 struct ib_sa_guidinfo_rec { 398 __be16 lid; 399 u8 block_num; 400 /* reserved */ 401 u8 res1; 402 __be32 res2; 403 u8 guid_info_list[64]; 404 }; 405 406 struct ib_sa_client { 407 atomic_t users; 408 struct completion comp; 409 }; 410 411 /** 412 * ib_sa_register_client - Register an SA client. 413 */ 414 void ib_sa_register_client(struct ib_sa_client *client); 415 416 /** 417 * ib_sa_unregister_client - Deregister an SA client. 418 * @client: Client object to deregister. 419 */ 420 void ib_sa_unregister_client(struct ib_sa_client *client); 421 422 struct ib_sa_query; 423 424 void ib_sa_cancel_query(int id, struct ib_sa_query *query); 425 426 int ib_sa_path_rec_get(struct ib_sa_client *client, struct ib_device *device, 427 u32 port_num, struct sa_path_rec *rec, 428 ib_sa_comp_mask comp_mask, unsigned long timeout_ms, 429 gfp_t gfp_mask, 430 void (*callback)(int status, struct sa_path_rec *resp, 431 unsigned int num_prs, void *context), 432 void *context, struct ib_sa_query **query); 433 434 int ib_sa_service_rec_get(struct ib_sa_client *client, 435 struct ib_device *device, u32 port_num, 436 struct sa_service_rec *rec, 437 ib_sa_comp_mask comp_mask, 438 unsigned long timeout_ms, gfp_t gfp_mask, 439 void (*callback)(int status, 440 struct sa_service_rec *resp, 441 unsigned int num_services, 442 void *context), 443 void *context, struct ib_sa_query **sa_query); 444 445 struct ib_sa_multicast { 446 struct ib_sa_mcmember_rec rec; 447 ib_sa_comp_mask comp_mask; 448 int (*callback)(int status, 449 struct ib_sa_multicast *multicast); 450 void *context; 451 }; 452 453 /** 454 * ib_sa_join_multicast - Initiates a join request to the specified multicast 455 * group. 456 * @client: SA client 457 * @device: Device associated with the multicast group. 458 * @port_num: Port on the specified device to associate with the multicast 459 * group. 460 * @rec: SA multicast member record specifying group attributes. 461 * @comp_mask: Component mask indicating which group attributes of %rec are 462 * valid. 463 * @gfp_mask: GFP mask for memory allocations. 464 * @callback: User callback invoked once the join operation completes. 465 * @context: User specified context stored with the ib_sa_multicast structure. 466 * 467 * This call initiates a multicast join request with the SA for the specified 468 * multicast group. If the join operation is started successfully, it returns 469 * an ib_sa_multicast structure that is used to track the multicast operation. 470 * Users must free this structure by calling ib_free_multicast, even if the 471 * join operation later fails. (The callback status is non-zero.) 472 * 473 * If the join operation fails; status will be non-zero, with the following 474 * failures possible: 475 * -ETIMEDOUT: The request timed out. 476 * -EIO: An error occurred sending the query. 477 * -EINVAL: The MCMemberRecord values differed from the existing group's. 478 * -ENETRESET: Indicates that an fatal error has occurred on the multicast 479 * group, and the user must rejoin the group to continue using it. 480 */ 481 struct ib_sa_multicast *ib_sa_join_multicast(struct ib_sa_client *client, 482 struct ib_device *device, 483 u32 port_num, 484 struct ib_sa_mcmember_rec *rec, 485 ib_sa_comp_mask comp_mask, gfp_t gfp_mask, 486 int (*callback)(int status, 487 struct ib_sa_multicast 488 *multicast), 489 void *context); 490 491 /** 492 * ib_free_multicast - Frees the multicast tracking structure, and releases 493 * any reference on the multicast group. 494 * @multicast: Multicast tracking structure allocated by ib_join_multicast. 495 * 496 * This call blocks until the multicast identifier is destroyed. It may 497 * not be called from within the multicast callback; however, returning a non- 498 * zero value from the callback will result in destroying the multicast 499 * tracking structure. 500 */ 501 void ib_sa_free_multicast(struct ib_sa_multicast *multicast); 502 503 /** 504 * ib_get_mcmember_rec - Looks up a multicast member record by its MGID and 505 * returns it if found. 506 * @device: Device associated with the multicast group. 507 * @port_num: Port on the specified device to associate with the multicast 508 * group. 509 * @mgid: MGID of multicast group. 510 * @rec: Location to copy SA multicast member record. 511 */ 512 int ib_sa_get_mcmember_rec(struct ib_device *device, u32 port_num, 513 union ib_gid *mgid, struct ib_sa_mcmember_rec *rec); 514 515 /** 516 * ib_init_ah_from_mcmember - Initialize address handle attributes based on 517 * an SA multicast member record. 518 */ 519 int ib_init_ah_from_mcmember(struct ib_device *device, u32 port_num, 520 struct ib_sa_mcmember_rec *rec, 521 struct net_device *ndev, 522 enum ib_gid_type gid_type, 523 struct rdma_ah_attr *ah_attr); 524 525 int ib_init_ah_attr_from_path(struct ib_device *device, u32 port_num, 526 struct sa_path_rec *rec, 527 struct rdma_ah_attr *ah_attr, 528 const struct ib_gid_attr *sgid_attr); 529 530 /** 531 * ib_sa_pack_path - Conert a path record from struct ib_sa_path_rec 532 * to IB MAD wire format. 533 */ 534 void ib_sa_pack_path(struct sa_path_rec *rec, void *attribute); 535 536 /** 537 * ib_sa_pack_service - Convert a service record from struct ib_sa_service_rec 538 * to IB MAD wire format. 539 */ 540 void ib_sa_pack_service(struct sa_service_rec *rec, void *attribute); 541 542 /** 543 * ib_sa_unpack_service - Convert a service record from MAD format to struct 544 * ib_sa_service_rec. 545 */ 546 void ib_sa_unpack_service(void *attribute, struct sa_service_rec *rec); 547 548 /** 549 * ib_sa_unpack_path - Convert a path record from MAD format to struct 550 * ib_sa_path_rec. 551 */ 552 void ib_sa_unpack_path(void *attribute, struct sa_path_rec *rec); 553 554 /* Support GuidInfoRecord */ 555 int ib_sa_guid_info_rec_query(struct ib_sa_client *client, 556 struct ib_device *device, u32 port_num, 557 struct ib_sa_guidinfo_rec *rec, 558 ib_sa_comp_mask comp_mask, u8 method, 559 unsigned long timeout_ms, gfp_t gfp_mask, 560 void (*callback)(int status, 561 struct ib_sa_guidinfo_rec *resp, 562 void *context), 563 void *context, struct ib_sa_query **sa_query); 564 565 static inline bool sa_path_is_roce(struct sa_path_rec *rec) 566 { 567 return ((rec->rec_type == SA_PATH_REC_TYPE_ROCE_V1) || 568 (rec->rec_type == SA_PATH_REC_TYPE_ROCE_V2)); 569 } 570 571 static inline bool sa_path_is_opa(struct sa_path_rec *rec) 572 { 573 return (rec->rec_type == SA_PATH_REC_TYPE_OPA); 574 } 575 576 static inline void sa_path_set_slid(struct sa_path_rec *rec, u32 slid) 577 { 578 if (rec->rec_type == SA_PATH_REC_TYPE_IB) 579 rec->ib.slid = cpu_to_be16(slid); 580 else if (rec->rec_type == SA_PATH_REC_TYPE_OPA) 581 rec->opa.slid = cpu_to_be32(slid); 582 } 583 584 static inline void sa_path_set_dlid(struct sa_path_rec *rec, u32 dlid) 585 { 586 if (rec->rec_type == SA_PATH_REC_TYPE_IB) 587 rec->ib.dlid = cpu_to_be16(dlid); 588 else if (rec->rec_type == SA_PATH_REC_TYPE_OPA) 589 rec->opa.dlid = cpu_to_be32(dlid); 590 } 591 592 static inline void sa_path_set_raw_traffic(struct sa_path_rec *rec, 593 u8 raw_traffic) 594 { 595 if (rec->rec_type == SA_PATH_REC_TYPE_IB) 596 rec->ib.raw_traffic = raw_traffic; 597 else if (rec->rec_type == SA_PATH_REC_TYPE_OPA) 598 rec->opa.raw_traffic = raw_traffic; 599 } 600 601 static inline __be32 sa_path_get_slid(struct sa_path_rec *rec) 602 { 603 if (rec->rec_type == SA_PATH_REC_TYPE_IB) 604 return htonl(ntohs(rec->ib.slid)); 605 else if (rec->rec_type == SA_PATH_REC_TYPE_OPA) 606 return rec->opa.slid; 607 return 0; 608 } 609 610 static inline __be32 sa_path_get_dlid(struct sa_path_rec *rec) 611 { 612 if (rec->rec_type == SA_PATH_REC_TYPE_IB) 613 return htonl(ntohs(rec->ib.dlid)); 614 else if (rec->rec_type == SA_PATH_REC_TYPE_OPA) 615 return rec->opa.dlid; 616 return 0; 617 } 618 619 static inline u8 sa_path_get_raw_traffic(struct sa_path_rec *rec) 620 { 621 if (rec->rec_type == SA_PATH_REC_TYPE_IB) 622 return rec->ib.raw_traffic; 623 else if (rec->rec_type == SA_PATH_REC_TYPE_OPA) 624 return rec->opa.raw_traffic; 625 return 0; 626 } 627 628 static inline void sa_path_set_dmac(struct sa_path_rec *rec, u8 *dmac) 629 { 630 if (sa_path_is_roce(rec)) 631 memcpy(rec->roce.dmac, dmac, ETH_ALEN); 632 } 633 634 static inline void sa_path_set_dmac_zero(struct sa_path_rec *rec) 635 { 636 if (sa_path_is_roce(rec)) 637 eth_zero_addr(rec->roce.dmac); 638 } 639 640 static inline u8 *sa_path_get_dmac(struct sa_path_rec *rec) 641 { 642 if (sa_path_is_roce(rec)) 643 return rec->roce.dmac; 644 return NULL; 645 } 646 #endif /* IB_SA_H */ 647