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 static inline enum ib_gid_type sa_conv_pathrec_to_gid_type(struct sa_path_rec * rec)193 sa_conv_pathrec_to_gid_type(struct sa_path_rec *rec) 194 { 195 switch (rec->rec_type) { 196 case SA_PATH_REC_TYPE_ROCE_V1: 197 return IB_GID_TYPE_ROCE; 198 case SA_PATH_REC_TYPE_ROCE_V2: 199 return IB_GID_TYPE_ROCE_UDP_ENCAP; 200 default: 201 return IB_GID_TYPE_IB; 202 } 203 } 204 205 static inline enum sa_path_rec_type sa_conv_gid_to_pathrec_type(enum ib_gid_type type)206 sa_conv_gid_to_pathrec_type(enum ib_gid_type type) 207 { 208 switch (type) { 209 case IB_GID_TYPE_ROCE: 210 return SA_PATH_REC_TYPE_ROCE_V1; 211 case IB_GID_TYPE_ROCE_UDP_ENCAP: 212 return SA_PATH_REC_TYPE_ROCE_V2; 213 default: 214 return SA_PATH_REC_TYPE_IB; 215 } 216 } 217 path_conv_opa_to_ib(struct sa_path_rec * ib,struct sa_path_rec * opa)218 static inline void path_conv_opa_to_ib(struct sa_path_rec *ib, 219 struct sa_path_rec *opa) 220 { 221 if ((be32_to_cpu(opa->opa.dlid) >= 222 be16_to_cpu(IB_MULTICAST_LID_BASE)) || 223 (be32_to_cpu(opa->opa.slid) >= 224 be16_to_cpu(IB_MULTICAST_LID_BASE))) { 225 /* Create OPA GID and zero out the LID */ 226 ib->dgid.global.interface_id 227 = OPA_MAKE_ID(be32_to_cpu(opa->opa.dlid)); 228 ib->dgid.global.subnet_prefix 229 = opa->dgid.global.subnet_prefix; 230 ib->sgid.global.interface_id 231 = OPA_MAKE_ID(be32_to_cpu(opa->opa.slid)); 232 ib->dgid.global.subnet_prefix 233 = opa->dgid.global.subnet_prefix; 234 ib->ib.dlid = 0; 235 236 ib->ib.slid = 0; 237 } else { 238 ib->ib.dlid = htons(ntohl(opa->opa.dlid)); 239 ib->ib.slid = htons(ntohl(opa->opa.slid)); 240 } 241 ib->service_id = opa->service_id; 242 ib->ib.raw_traffic = opa->opa.raw_traffic; 243 } 244 path_conv_ib_to_opa(struct sa_path_rec * opa,struct sa_path_rec * ib)245 static inline void path_conv_ib_to_opa(struct sa_path_rec *opa, 246 struct sa_path_rec *ib) 247 { 248 __be32 slid, dlid; 249 250 if ((ib_is_opa_gid(&ib->sgid)) || 251 (ib_is_opa_gid(&ib->dgid))) { 252 slid = htonl(opa_get_lid_from_gid(&ib->sgid)); 253 dlid = htonl(opa_get_lid_from_gid(&ib->dgid)); 254 } else { 255 slid = htonl(ntohs(ib->ib.slid)); 256 dlid = htonl(ntohs(ib->ib.dlid)); 257 } 258 opa->opa.slid = slid; 259 opa->opa.dlid = dlid; 260 opa->service_id = ib->service_id; 261 opa->opa.raw_traffic = ib->ib.raw_traffic; 262 } 263 264 /* Convert from OPA to IB path record */ sa_convert_path_opa_to_ib(struct sa_path_rec * dest,struct sa_path_rec * src)265 static inline void sa_convert_path_opa_to_ib(struct sa_path_rec *dest, 266 struct sa_path_rec *src) 267 { 268 if (src->rec_type != SA_PATH_REC_TYPE_OPA) 269 return; 270 271 *dest = *src; 272 dest->rec_type = SA_PATH_REC_TYPE_IB; 273 path_conv_opa_to_ib(dest, src); 274 } 275 276 /* Convert from IB to OPA path record */ sa_convert_path_ib_to_opa(struct sa_path_rec * dest,struct sa_path_rec * src)277 static inline void sa_convert_path_ib_to_opa(struct sa_path_rec *dest, 278 struct sa_path_rec *src) 279 { 280 if (src->rec_type != SA_PATH_REC_TYPE_IB) 281 return; 282 283 /* Do a structure copy and overwrite the relevant fields */ 284 *dest = *src; 285 dest->rec_type = SA_PATH_REC_TYPE_OPA; 286 path_conv_ib_to_opa(dest, src); 287 } 288 289 #define IB_SA_MCMEMBER_REC_MGID IB_SA_COMP_MASK( 0) 290 #define IB_SA_MCMEMBER_REC_PORT_GID IB_SA_COMP_MASK( 1) 291 #define IB_SA_MCMEMBER_REC_QKEY IB_SA_COMP_MASK( 2) 292 #define IB_SA_MCMEMBER_REC_MLID IB_SA_COMP_MASK( 3) 293 #define IB_SA_MCMEMBER_REC_MTU_SELECTOR IB_SA_COMP_MASK( 4) 294 #define IB_SA_MCMEMBER_REC_MTU IB_SA_COMP_MASK( 5) 295 #define IB_SA_MCMEMBER_REC_TRAFFIC_CLASS IB_SA_COMP_MASK( 6) 296 #define IB_SA_MCMEMBER_REC_PKEY IB_SA_COMP_MASK( 7) 297 #define IB_SA_MCMEMBER_REC_RATE_SELECTOR IB_SA_COMP_MASK( 8) 298 #define IB_SA_MCMEMBER_REC_RATE IB_SA_COMP_MASK( 9) 299 #define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME_SELECTOR IB_SA_COMP_MASK(10) 300 #define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME IB_SA_COMP_MASK(11) 301 #define IB_SA_MCMEMBER_REC_SL IB_SA_COMP_MASK(12) 302 #define IB_SA_MCMEMBER_REC_FLOW_LABEL IB_SA_COMP_MASK(13) 303 #define IB_SA_MCMEMBER_REC_HOP_LIMIT IB_SA_COMP_MASK(14) 304 #define IB_SA_MCMEMBER_REC_SCOPE IB_SA_COMP_MASK(15) 305 #define IB_SA_MCMEMBER_REC_JOIN_STATE IB_SA_COMP_MASK(16) 306 #define IB_SA_MCMEMBER_REC_PROXY_JOIN IB_SA_COMP_MASK(17) 307 308 struct ib_sa_mcmember_rec { 309 union ib_gid mgid; 310 union ib_gid port_gid; 311 __be32 qkey; 312 __be16 mlid; 313 u8 mtu_selector; 314 u8 mtu; 315 u8 traffic_class; 316 __be16 pkey; 317 u8 rate_selector; 318 u8 rate; 319 u8 packet_life_time_selector; 320 u8 packet_life_time; 321 u8 sl; 322 __be32 flow_label; 323 u8 hop_limit; 324 u8 scope; 325 u8 join_state; 326 u8 proxy_join; 327 }; 328 329 /* Service Record Component Mask Sec 15.2.5.14 Ver 1.1 */ 330 #define IB_SA_SERVICE_REC_SERVICE_ID IB_SA_COMP_MASK( 0) 331 #define IB_SA_SERVICE_REC_SERVICE_GID IB_SA_COMP_MASK( 1) 332 #define IB_SA_SERVICE_REC_SERVICE_PKEY IB_SA_COMP_MASK( 2) 333 /* reserved: 3 */ 334 #define IB_SA_SERVICE_REC_SERVICE_LEASE IB_SA_COMP_MASK( 4) 335 #define IB_SA_SERVICE_REC_SERVICE_KEY IB_SA_COMP_MASK( 5) 336 #define IB_SA_SERVICE_REC_SERVICE_NAME IB_SA_COMP_MASK( 6) 337 #define IB_SA_SERVICE_REC_SERVICE_DATA8_0 IB_SA_COMP_MASK( 7) 338 #define IB_SA_SERVICE_REC_SERVICE_DATA8_1 IB_SA_COMP_MASK( 8) 339 #define IB_SA_SERVICE_REC_SERVICE_DATA8_2 IB_SA_COMP_MASK( 9) 340 #define IB_SA_SERVICE_REC_SERVICE_DATA8_3 IB_SA_COMP_MASK(10) 341 #define IB_SA_SERVICE_REC_SERVICE_DATA8_4 IB_SA_COMP_MASK(11) 342 #define IB_SA_SERVICE_REC_SERVICE_DATA8_5 IB_SA_COMP_MASK(12) 343 #define IB_SA_SERVICE_REC_SERVICE_DATA8_6 IB_SA_COMP_MASK(13) 344 #define IB_SA_SERVICE_REC_SERVICE_DATA8_7 IB_SA_COMP_MASK(14) 345 #define IB_SA_SERVICE_REC_SERVICE_DATA8_8 IB_SA_COMP_MASK(15) 346 #define IB_SA_SERVICE_REC_SERVICE_DATA8_9 IB_SA_COMP_MASK(16) 347 #define IB_SA_SERVICE_REC_SERVICE_DATA8_10 IB_SA_COMP_MASK(17) 348 #define IB_SA_SERVICE_REC_SERVICE_DATA8_11 IB_SA_COMP_MASK(18) 349 #define IB_SA_SERVICE_REC_SERVICE_DATA8_12 IB_SA_COMP_MASK(19) 350 #define IB_SA_SERVICE_REC_SERVICE_DATA8_13 IB_SA_COMP_MASK(20) 351 #define IB_SA_SERVICE_REC_SERVICE_DATA8_14 IB_SA_COMP_MASK(21) 352 #define IB_SA_SERVICE_REC_SERVICE_DATA8_15 IB_SA_COMP_MASK(22) 353 #define IB_SA_SERVICE_REC_SERVICE_DATA16_0 IB_SA_COMP_MASK(23) 354 #define IB_SA_SERVICE_REC_SERVICE_DATA16_1 IB_SA_COMP_MASK(24) 355 #define IB_SA_SERVICE_REC_SERVICE_DATA16_2 IB_SA_COMP_MASK(25) 356 #define IB_SA_SERVICE_REC_SERVICE_DATA16_3 IB_SA_COMP_MASK(26) 357 #define IB_SA_SERVICE_REC_SERVICE_DATA16_4 IB_SA_COMP_MASK(27) 358 #define IB_SA_SERVICE_REC_SERVICE_DATA16_5 IB_SA_COMP_MASK(28) 359 #define IB_SA_SERVICE_REC_SERVICE_DATA16_6 IB_SA_COMP_MASK(29) 360 #define IB_SA_SERVICE_REC_SERVICE_DATA16_7 IB_SA_COMP_MASK(30) 361 #define IB_SA_SERVICE_REC_SERVICE_DATA32_0 IB_SA_COMP_MASK(31) 362 #define IB_SA_SERVICE_REC_SERVICE_DATA32_1 IB_SA_COMP_MASK(32) 363 #define IB_SA_SERVICE_REC_SERVICE_DATA32_2 IB_SA_COMP_MASK(33) 364 #define IB_SA_SERVICE_REC_SERVICE_DATA32_3 IB_SA_COMP_MASK(34) 365 #define IB_SA_SERVICE_REC_SERVICE_DATA64_0 IB_SA_COMP_MASK(35) 366 #define IB_SA_SERVICE_REC_SERVICE_DATA64_1 IB_SA_COMP_MASK(36) 367 368 #define IB_DEFAULT_SERVICE_LEASE 0xFFFFFFFF 369 370 #define IB_SA_GUIDINFO_REC_LID IB_SA_COMP_MASK(0) 371 #define IB_SA_GUIDINFO_REC_BLOCK_NUM IB_SA_COMP_MASK(1) 372 #define IB_SA_GUIDINFO_REC_RES1 IB_SA_COMP_MASK(2) 373 #define IB_SA_GUIDINFO_REC_RES2 IB_SA_COMP_MASK(3) 374 #define IB_SA_GUIDINFO_REC_GID0 IB_SA_COMP_MASK(4) 375 #define IB_SA_GUIDINFO_REC_GID1 IB_SA_COMP_MASK(5) 376 #define IB_SA_GUIDINFO_REC_GID2 IB_SA_COMP_MASK(6) 377 #define IB_SA_GUIDINFO_REC_GID3 IB_SA_COMP_MASK(7) 378 #define IB_SA_GUIDINFO_REC_GID4 IB_SA_COMP_MASK(8) 379 #define IB_SA_GUIDINFO_REC_GID5 IB_SA_COMP_MASK(9) 380 #define IB_SA_GUIDINFO_REC_GID6 IB_SA_COMP_MASK(10) 381 #define IB_SA_GUIDINFO_REC_GID7 IB_SA_COMP_MASK(11) 382 383 struct ib_sa_guidinfo_rec { 384 __be16 lid; 385 u8 block_num; 386 /* reserved */ 387 u8 res1; 388 __be32 res2; 389 u8 guid_info_list[64]; 390 }; 391 392 struct ib_sa_client { 393 atomic_t users; 394 struct completion comp; 395 }; 396 397 /** 398 * ib_sa_register_client - Register an SA client. 399 */ 400 void ib_sa_register_client(struct ib_sa_client *client); 401 402 /** 403 * ib_sa_unregister_client - Deregister an SA client. 404 * @client: Client object to deregister. 405 */ 406 void ib_sa_unregister_client(struct ib_sa_client *client); 407 408 struct ib_sa_query; 409 410 void ib_sa_cancel_query(int id, struct ib_sa_query *query); 411 412 int ib_sa_path_rec_get(struct ib_sa_client *client, struct ib_device *device, 413 u32 port_num, struct sa_path_rec *rec, 414 ib_sa_comp_mask comp_mask, unsigned long timeout_ms, 415 gfp_t gfp_mask, 416 void (*callback)(int status, struct sa_path_rec *resp, 417 unsigned int num_prs, void *context), 418 void *context, struct ib_sa_query **query); 419 420 struct ib_sa_multicast { 421 struct ib_sa_mcmember_rec rec; 422 ib_sa_comp_mask comp_mask; 423 int (*callback)(int status, 424 struct ib_sa_multicast *multicast); 425 void *context; 426 }; 427 428 /** 429 * ib_sa_join_multicast - Initiates a join request to the specified multicast 430 * group. 431 * @client: SA client 432 * @device: Device associated with the multicast group. 433 * @port_num: Port on the specified device to associate with the multicast 434 * group. 435 * @rec: SA multicast member record specifying group attributes. 436 * @comp_mask: Component mask indicating which group attributes of %rec are 437 * valid. 438 * @gfp_mask: GFP mask for memory allocations. 439 * @callback: User callback invoked once the join operation completes. 440 * @context: User specified context stored with the ib_sa_multicast structure. 441 * 442 * This call initiates a multicast join request with the SA for the specified 443 * multicast group. If the join operation is started successfully, it returns 444 * an ib_sa_multicast structure that is used to track the multicast operation. 445 * Users must free this structure by calling ib_free_multicast, even if the 446 * join operation later fails. (The callback status is non-zero.) 447 * 448 * If the join operation fails; status will be non-zero, with the following 449 * failures possible: 450 * -ETIMEDOUT: The request timed out. 451 * -EIO: An error occurred sending the query. 452 * -EINVAL: The MCMemberRecord values differed from the existing group's. 453 * -ENETRESET: Indicates that an fatal error has occurred on the multicast 454 * group, and the user must rejoin the group to continue using it. 455 */ 456 struct ib_sa_multicast *ib_sa_join_multicast(struct ib_sa_client *client, 457 struct ib_device *device, 458 u32 port_num, 459 struct ib_sa_mcmember_rec *rec, 460 ib_sa_comp_mask comp_mask, gfp_t gfp_mask, 461 int (*callback)(int status, 462 struct ib_sa_multicast 463 *multicast), 464 void *context); 465 466 /** 467 * ib_free_multicast - Frees the multicast tracking structure, and releases 468 * any reference on the multicast group. 469 * @multicast: Multicast tracking structure allocated by ib_join_multicast. 470 * 471 * This call blocks until the multicast identifier is destroyed. It may 472 * not be called from within the multicast callback; however, returning a non- 473 * zero value from the callback will result in destroying the multicast 474 * tracking structure. 475 */ 476 void ib_sa_free_multicast(struct ib_sa_multicast *multicast); 477 478 /** 479 * ib_get_mcmember_rec - Looks up a multicast member record by its MGID and 480 * returns it if found. 481 * @device: Device associated with the multicast group. 482 * @port_num: Port on the specified device to associate with the multicast 483 * group. 484 * @mgid: MGID of multicast group. 485 * @rec: Location to copy SA multicast member record. 486 */ 487 int ib_sa_get_mcmember_rec(struct ib_device *device, u32 port_num, 488 union ib_gid *mgid, struct ib_sa_mcmember_rec *rec); 489 490 /** 491 * ib_init_ah_from_mcmember - Initialize address handle attributes based on 492 * an SA multicast member record. 493 */ 494 int ib_init_ah_from_mcmember(struct ib_device *device, u32 port_num, 495 struct ib_sa_mcmember_rec *rec, 496 struct net_device *ndev, 497 enum ib_gid_type gid_type, 498 struct rdma_ah_attr *ah_attr); 499 500 int ib_init_ah_attr_from_path(struct ib_device *device, u32 port_num, 501 struct sa_path_rec *rec, 502 struct rdma_ah_attr *ah_attr, 503 const struct ib_gid_attr *sgid_attr); 504 505 /** 506 * ib_sa_pack_path - Conert a path record from struct ib_sa_path_rec 507 * to IB MAD wire format. 508 */ 509 void ib_sa_pack_path(struct sa_path_rec *rec, void *attribute); 510 511 /** 512 * ib_sa_unpack_path - Convert a path record from MAD format to struct 513 * ib_sa_path_rec. 514 */ 515 void ib_sa_unpack_path(void *attribute, struct sa_path_rec *rec); 516 517 /* Support GuidInfoRecord */ 518 int ib_sa_guid_info_rec_query(struct ib_sa_client *client, 519 struct ib_device *device, u32 port_num, 520 struct ib_sa_guidinfo_rec *rec, 521 ib_sa_comp_mask comp_mask, u8 method, 522 unsigned long timeout_ms, gfp_t gfp_mask, 523 void (*callback)(int status, 524 struct ib_sa_guidinfo_rec *resp, 525 void *context), 526 void *context, struct ib_sa_query **sa_query); 527 sa_path_is_roce(struct sa_path_rec * rec)528 static inline bool sa_path_is_roce(struct sa_path_rec *rec) 529 { 530 return ((rec->rec_type == SA_PATH_REC_TYPE_ROCE_V1) || 531 (rec->rec_type == SA_PATH_REC_TYPE_ROCE_V2)); 532 } 533 sa_path_is_opa(struct sa_path_rec * rec)534 static inline bool sa_path_is_opa(struct sa_path_rec *rec) 535 { 536 return (rec->rec_type == SA_PATH_REC_TYPE_OPA); 537 } 538 sa_path_set_slid(struct sa_path_rec * rec,u32 slid)539 static inline void sa_path_set_slid(struct sa_path_rec *rec, u32 slid) 540 { 541 if (rec->rec_type == SA_PATH_REC_TYPE_IB) 542 rec->ib.slid = cpu_to_be16(slid); 543 else if (rec->rec_type == SA_PATH_REC_TYPE_OPA) 544 rec->opa.slid = cpu_to_be32(slid); 545 } 546 sa_path_set_dlid(struct sa_path_rec * rec,u32 dlid)547 static inline void sa_path_set_dlid(struct sa_path_rec *rec, u32 dlid) 548 { 549 if (rec->rec_type == SA_PATH_REC_TYPE_IB) 550 rec->ib.dlid = cpu_to_be16(dlid); 551 else if (rec->rec_type == SA_PATH_REC_TYPE_OPA) 552 rec->opa.dlid = cpu_to_be32(dlid); 553 } 554 sa_path_set_raw_traffic(struct sa_path_rec * rec,u8 raw_traffic)555 static inline void sa_path_set_raw_traffic(struct sa_path_rec *rec, 556 u8 raw_traffic) 557 { 558 if (rec->rec_type == SA_PATH_REC_TYPE_IB) 559 rec->ib.raw_traffic = raw_traffic; 560 else if (rec->rec_type == SA_PATH_REC_TYPE_OPA) 561 rec->opa.raw_traffic = raw_traffic; 562 } 563 sa_path_get_slid(struct sa_path_rec * rec)564 static inline __be32 sa_path_get_slid(struct sa_path_rec *rec) 565 { 566 if (rec->rec_type == SA_PATH_REC_TYPE_IB) 567 return htonl(ntohs(rec->ib.slid)); 568 else if (rec->rec_type == SA_PATH_REC_TYPE_OPA) 569 return rec->opa.slid; 570 return 0; 571 } 572 sa_path_get_dlid(struct sa_path_rec * rec)573 static inline __be32 sa_path_get_dlid(struct sa_path_rec *rec) 574 { 575 if (rec->rec_type == SA_PATH_REC_TYPE_IB) 576 return htonl(ntohs(rec->ib.dlid)); 577 else if (rec->rec_type == SA_PATH_REC_TYPE_OPA) 578 return rec->opa.dlid; 579 return 0; 580 } 581 sa_path_get_raw_traffic(struct sa_path_rec * rec)582 static inline u8 sa_path_get_raw_traffic(struct sa_path_rec *rec) 583 { 584 if (rec->rec_type == SA_PATH_REC_TYPE_IB) 585 return rec->ib.raw_traffic; 586 else if (rec->rec_type == SA_PATH_REC_TYPE_OPA) 587 return rec->opa.raw_traffic; 588 return 0; 589 } 590 sa_path_set_dmac(struct sa_path_rec * rec,u8 * dmac)591 static inline void sa_path_set_dmac(struct sa_path_rec *rec, u8 *dmac) 592 { 593 if (sa_path_is_roce(rec)) 594 memcpy(rec->roce.dmac, dmac, ETH_ALEN); 595 } 596 sa_path_set_dmac_zero(struct sa_path_rec * rec)597 static inline void sa_path_set_dmac_zero(struct sa_path_rec *rec) 598 { 599 if (sa_path_is_roce(rec)) 600 eth_zero_addr(rec->roce.dmac); 601 } 602 sa_path_get_dmac(struct sa_path_rec * rec)603 static inline u8 *sa_path_get_dmac(struct sa_path_rec *rec) 604 { 605 if (sa_path_is_roce(rec)) 606 return rec->roce.dmac; 607 return NULL; 608 } 609 #endif /* IB_SA_H */ 610