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