2 * Copyright (c) 2004 Topspin Communications. All rights reserved.
3 * Copyright (c) 2005 Voltaire, Inc. All rights reserved.
4 * Copyright (c) 2006 Intel Corporation. All rights reserved.
6 * This software is available to you under a choice of one of two
7 * licenses. You may choose to be licensed under the terms of the GNU
8 * General Public License (GPL) Version 2, available from the file
9 * COPYING in the main directory of this source tree, or the
10 * OpenIB.org BSD license below:
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
20 * - Redistributions in binary form must reproduce the above
21 * copyright notice, this list of conditions and the following
22 * disclaimer in the documentation and/or other materials
23 * provided with the distribution.
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
38 #include <linux/completion.h>
39 #include <linux/compiler.h>
41 #include <linux/atomic.h>
42 #include <linux/netdevice.h>
44 #include <rdma/ib_verbs.h>
45 #include <rdma/ib_mad.h>
48 IB_SA_CLASS_VERSION
= 2, /* IB spec version 1.1/1.2 */
50 IB_SA_METHOD_GET_TABLE
= 0x12,
51 IB_SA_METHOD_GET_TABLE_RESP
= 0x92,
52 IB_SA_METHOD_DELETE
= 0x15,
53 IB_SA_METHOD_DELETE_RESP
= 0x95,
54 IB_SA_METHOD_GET_MULTI
= 0x14,
55 IB_SA_METHOD_GET_MULTI_RESP
= 0x94,
56 IB_SA_METHOD_GET_TRACE_TBL
= 0x13
60 IB_SA_ATTR_CLASS_PORTINFO
= 0x01,
61 IB_SA_ATTR_NOTICE
= 0x02,
62 IB_SA_ATTR_INFORM_INFO
= 0x03,
63 IB_SA_ATTR_NODE_REC
= 0x11,
64 IB_SA_ATTR_PORT_INFO_REC
= 0x12,
65 IB_SA_ATTR_SL2VL_REC
= 0x13,
66 IB_SA_ATTR_SWITCH_REC
= 0x14,
67 IB_SA_ATTR_LINEAR_FDB_REC
= 0x15,
68 IB_SA_ATTR_RANDOM_FDB_REC
= 0x16,
69 IB_SA_ATTR_MCAST_FDB_REC
= 0x17,
70 IB_SA_ATTR_SM_INFO_REC
= 0x18,
71 IB_SA_ATTR_LINK_REC
= 0x20,
72 IB_SA_ATTR_GUID_INFO_REC
= 0x30,
73 IB_SA_ATTR_SERVICE_REC
= 0x31,
74 IB_SA_ATTR_PARTITION_REC
= 0x33,
75 IB_SA_ATTR_PATH_REC
= 0x35,
76 IB_SA_ATTR_VL_ARB_REC
= 0x36,
77 IB_SA_ATTR_MC_MEMBER_REC
= 0x38,
78 IB_SA_ATTR_TRACE_REC
= 0x39,
79 IB_SA_ATTR_MULTI_PATH_REC
= 0x3a,
80 IB_SA_ATTR_SERVICE_ASSOC_REC
= 0x3b,
81 IB_SA_ATTR_INFORM_INFO_REC
= 0xf3
89 * The meaning of "best" depends on the attribute: for
90 * example, for MTU best will return the largest available
91 * MTU, while for packet life time, best will return the
92 * smallest available life time.
97 #define IB_SA_CAP_MASK2_SENDONLY_FULL_MEM_SUPPORT BIT(12)
100 * Structures for SA records are named "struct ib_sa_xxx_rec." No
101 * attempt is made to pack structures to match the physical layout of
102 * SA records in SA MADs; all packing and unpacking is handled by the
105 * For a record with structure ib_sa_xxx_rec, the naming convention
106 * for the component mask value for field yyy is IB_SA_XXX_REC_YYY (we
107 * never use different abbreviations or otherwise change the spelling
108 * of xxx/yyy between ib_sa_xxx_rec.yyy and IB_SA_XXX_REC_YYY).
110 * Reserved rows are indicated with comments to help maintainability.
113 #define IB_SA_PATH_REC_SERVICE_ID (IB_SA_COMP_MASK( 0) |\
115 #define IB_SA_PATH_REC_DGID IB_SA_COMP_MASK( 2)
116 #define IB_SA_PATH_REC_SGID IB_SA_COMP_MASK( 3)
117 #define IB_SA_PATH_REC_DLID IB_SA_COMP_MASK( 4)
118 #define IB_SA_PATH_REC_SLID IB_SA_COMP_MASK( 5)
119 #define IB_SA_PATH_REC_RAW_TRAFFIC IB_SA_COMP_MASK( 6)
121 #define IB_SA_PATH_REC_FLOW_LABEL IB_SA_COMP_MASK( 8)
122 #define IB_SA_PATH_REC_HOP_LIMIT IB_SA_COMP_MASK( 9)
123 #define IB_SA_PATH_REC_TRAFFIC_CLASS IB_SA_COMP_MASK(10)
124 #define IB_SA_PATH_REC_REVERSIBLE IB_SA_COMP_MASK(11)
125 #define IB_SA_PATH_REC_NUMB_PATH IB_SA_COMP_MASK(12)
126 #define IB_SA_PATH_REC_PKEY IB_SA_COMP_MASK(13)
127 #define IB_SA_PATH_REC_QOS_CLASS IB_SA_COMP_MASK(14)
128 #define IB_SA_PATH_REC_SL IB_SA_COMP_MASK(15)
129 #define IB_SA_PATH_REC_MTU_SELECTOR IB_SA_COMP_MASK(16)
130 #define IB_SA_PATH_REC_MTU IB_SA_COMP_MASK(17)
131 #define IB_SA_PATH_REC_RATE_SELECTOR IB_SA_COMP_MASK(18)
132 #define IB_SA_PATH_REC_RATE IB_SA_COMP_MASK(19)
133 #define IB_SA_PATH_REC_PACKET_LIFE_TIME_SELECTOR IB_SA_COMP_MASK(20)
134 #define IB_SA_PATH_REC_PACKET_LIFE_TIME IB_SA_COMP_MASK(21)
135 #define IB_SA_PATH_REC_PREFERENCE IB_SA_COMP_MASK(22)
137 struct ib_sa_path_rec
{
157 u8 packet_life_time_selector
;
165 enum ib_gid_type gid_type
;
168 static inline struct net_device
*ib_get_ndev_from_path(struct ib_sa_path_rec
*rec
)
170 return rec
->net
? dev_get_by_index(rec
->net
, rec
->ifindex
) : NULL
;
173 #define IB_SA_MCMEMBER_REC_MGID IB_SA_COMP_MASK( 0)
174 #define IB_SA_MCMEMBER_REC_PORT_GID IB_SA_COMP_MASK( 1)
175 #define IB_SA_MCMEMBER_REC_QKEY IB_SA_COMP_MASK( 2)
176 #define IB_SA_MCMEMBER_REC_MLID IB_SA_COMP_MASK( 3)
177 #define IB_SA_MCMEMBER_REC_MTU_SELECTOR IB_SA_COMP_MASK( 4)
178 #define IB_SA_MCMEMBER_REC_MTU IB_SA_COMP_MASK( 5)
179 #define IB_SA_MCMEMBER_REC_TRAFFIC_CLASS IB_SA_COMP_MASK( 6)
180 #define IB_SA_MCMEMBER_REC_PKEY IB_SA_COMP_MASK( 7)
181 #define IB_SA_MCMEMBER_REC_RATE_SELECTOR IB_SA_COMP_MASK( 8)
182 #define IB_SA_MCMEMBER_REC_RATE IB_SA_COMP_MASK( 9)
183 #define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME_SELECTOR IB_SA_COMP_MASK(10)
184 #define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME IB_SA_COMP_MASK(11)
185 #define IB_SA_MCMEMBER_REC_SL IB_SA_COMP_MASK(12)
186 #define IB_SA_MCMEMBER_REC_FLOW_LABEL IB_SA_COMP_MASK(13)
187 #define IB_SA_MCMEMBER_REC_HOP_LIMIT IB_SA_COMP_MASK(14)
188 #define IB_SA_MCMEMBER_REC_SCOPE IB_SA_COMP_MASK(15)
189 #define IB_SA_MCMEMBER_REC_JOIN_STATE IB_SA_COMP_MASK(16)
190 #define IB_SA_MCMEMBER_REC_PROXY_JOIN IB_SA_COMP_MASK(17)
192 struct ib_sa_mcmember_rec
{
194 union ib_gid port_gid
;
203 u8 packet_life_time_selector
;
213 /* Service Record Component Mask Sec 15.2.5.14 Ver 1.1 */
214 #define IB_SA_SERVICE_REC_SERVICE_ID IB_SA_COMP_MASK( 0)
215 #define IB_SA_SERVICE_REC_SERVICE_GID IB_SA_COMP_MASK( 1)
216 #define IB_SA_SERVICE_REC_SERVICE_PKEY IB_SA_COMP_MASK( 2)
218 #define IB_SA_SERVICE_REC_SERVICE_LEASE IB_SA_COMP_MASK( 4)
219 #define IB_SA_SERVICE_REC_SERVICE_KEY IB_SA_COMP_MASK( 5)
220 #define IB_SA_SERVICE_REC_SERVICE_NAME IB_SA_COMP_MASK( 6)
221 #define IB_SA_SERVICE_REC_SERVICE_DATA8_0 IB_SA_COMP_MASK( 7)
222 #define IB_SA_SERVICE_REC_SERVICE_DATA8_1 IB_SA_COMP_MASK( 8)
223 #define IB_SA_SERVICE_REC_SERVICE_DATA8_2 IB_SA_COMP_MASK( 9)
224 #define IB_SA_SERVICE_REC_SERVICE_DATA8_3 IB_SA_COMP_MASK(10)
225 #define IB_SA_SERVICE_REC_SERVICE_DATA8_4 IB_SA_COMP_MASK(11)
226 #define IB_SA_SERVICE_REC_SERVICE_DATA8_5 IB_SA_COMP_MASK(12)
227 #define IB_SA_SERVICE_REC_SERVICE_DATA8_6 IB_SA_COMP_MASK(13)
228 #define IB_SA_SERVICE_REC_SERVICE_DATA8_7 IB_SA_COMP_MASK(14)
229 #define IB_SA_SERVICE_REC_SERVICE_DATA8_8 IB_SA_COMP_MASK(15)
230 #define IB_SA_SERVICE_REC_SERVICE_DATA8_9 IB_SA_COMP_MASK(16)
231 #define IB_SA_SERVICE_REC_SERVICE_DATA8_10 IB_SA_COMP_MASK(17)
232 #define IB_SA_SERVICE_REC_SERVICE_DATA8_11 IB_SA_COMP_MASK(18)
233 #define IB_SA_SERVICE_REC_SERVICE_DATA8_12 IB_SA_COMP_MASK(19)
234 #define IB_SA_SERVICE_REC_SERVICE_DATA8_13 IB_SA_COMP_MASK(20)
235 #define IB_SA_SERVICE_REC_SERVICE_DATA8_14 IB_SA_COMP_MASK(21)
236 #define IB_SA_SERVICE_REC_SERVICE_DATA8_15 IB_SA_COMP_MASK(22)
237 #define IB_SA_SERVICE_REC_SERVICE_DATA16_0 IB_SA_COMP_MASK(23)
238 #define IB_SA_SERVICE_REC_SERVICE_DATA16_1 IB_SA_COMP_MASK(24)
239 #define IB_SA_SERVICE_REC_SERVICE_DATA16_2 IB_SA_COMP_MASK(25)
240 #define IB_SA_SERVICE_REC_SERVICE_DATA16_3 IB_SA_COMP_MASK(26)
241 #define IB_SA_SERVICE_REC_SERVICE_DATA16_4 IB_SA_COMP_MASK(27)
242 #define IB_SA_SERVICE_REC_SERVICE_DATA16_5 IB_SA_COMP_MASK(28)
243 #define IB_SA_SERVICE_REC_SERVICE_DATA16_6 IB_SA_COMP_MASK(29)
244 #define IB_SA_SERVICE_REC_SERVICE_DATA16_7 IB_SA_COMP_MASK(30)
245 #define IB_SA_SERVICE_REC_SERVICE_DATA32_0 IB_SA_COMP_MASK(31)
246 #define IB_SA_SERVICE_REC_SERVICE_DATA32_1 IB_SA_COMP_MASK(32)
247 #define IB_SA_SERVICE_REC_SERVICE_DATA32_2 IB_SA_COMP_MASK(33)
248 #define IB_SA_SERVICE_REC_SERVICE_DATA32_3 IB_SA_COMP_MASK(34)
249 #define IB_SA_SERVICE_REC_SERVICE_DATA64_0 IB_SA_COMP_MASK(35)
250 #define IB_SA_SERVICE_REC_SERVICE_DATA64_1 IB_SA_COMP_MASK(36)
252 #define IB_DEFAULT_SERVICE_LEASE 0xFFFFFFFF
254 struct ib_sa_service_rec
{
268 #define IB_SA_GUIDINFO_REC_LID IB_SA_COMP_MASK(0)
269 #define IB_SA_GUIDINFO_REC_BLOCK_NUM IB_SA_COMP_MASK(1)
270 #define IB_SA_GUIDINFO_REC_RES1 IB_SA_COMP_MASK(2)
271 #define IB_SA_GUIDINFO_REC_RES2 IB_SA_COMP_MASK(3)
272 #define IB_SA_GUIDINFO_REC_GID0 IB_SA_COMP_MASK(4)
273 #define IB_SA_GUIDINFO_REC_GID1 IB_SA_COMP_MASK(5)
274 #define IB_SA_GUIDINFO_REC_GID2 IB_SA_COMP_MASK(6)
275 #define IB_SA_GUIDINFO_REC_GID3 IB_SA_COMP_MASK(7)
276 #define IB_SA_GUIDINFO_REC_GID4 IB_SA_COMP_MASK(8)
277 #define IB_SA_GUIDINFO_REC_GID5 IB_SA_COMP_MASK(9)
278 #define IB_SA_GUIDINFO_REC_GID6 IB_SA_COMP_MASK(10)
279 #define IB_SA_GUIDINFO_REC_GID7 IB_SA_COMP_MASK(11)
281 struct ib_sa_guidinfo_rec
{
287 u8 guid_info_list
[64];
290 struct ib_sa_client
{
292 struct completion comp
;
296 * ib_sa_register_client - Register an SA client.
298 void ib_sa_register_client(struct ib_sa_client
*client
);
301 * ib_sa_unregister_client - Deregister an SA client.
302 * @client: Client object to deregister.
304 void ib_sa_unregister_client(struct ib_sa_client
*client
);
308 void ib_sa_cancel_query(int id
, struct ib_sa_query
*query
);
310 int ib_sa_path_rec_get(struct ib_sa_client
*client
,
311 struct ib_device
*device
, u8 port_num
,
312 struct ib_sa_path_rec
*rec
,
313 ib_sa_comp_mask comp_mask
,
314 int timeout_ms
, gfp_t gfp_mask
,
315 void (*callback
)(int status
,
316 struct ib_sa_path_rec
*resp
,
319 struct ib_sa_query
**query
);
321 int ib_sa_service_rec_query(struct ib_sa_client
*client
,
322 struct ib_device
*device
, u8 port_num
,
324 struct ib_sa_service_rec
*rec
,
325 ib_sa_comp_mask comp_mask
,
326 int timeout_ms
, gfp_t gfp_mask
,
327 void (*callback
)(int status
,
328 struct ib_sa_service_rec
*resp
,
331 struct ib_sa_query
**sa_query
);
333 struct ib_sa_multicast
{
334 struct ib_sa_mcmember_rec rec
;
335 ib_sa_comp_mask comp_mask
;
336 int (*callback
)(int status
,
337 struct ib_sa_multicast
*multicast
);
342 * ib_sa_join_multicast - Initiates a join request to the specified multicast
345 * @device: Device associated with the multicast group.
346 * @port_num: Port on the specified device to associate with the multicast
348 * @rec: SA multicast member record specifying group attributes.
349 * @comp_mask: Component mask indicating which group attributes of %rec are
351 * @gfp_mask: GFP mask for memory allocations.
352 * @callback: User callback invoked once the join operation completes.
353 * @context: User specified context stored with the ib_sa_multicast structure.
355 * This call initiates a multicast join request with the SA for the specified
356 * multicast group. If the join operation is started successfully, it returns
357 * an ib_sa_multicast structure that is used to track the multicast operation.
358 * Users must free this structure by calling ib_free_multicast, even if the
359 * join operation later fails. (The callback status is non-zero.)
361 * If the join operation fails; status will be non-zero, with the following
363 * -ETIMEDOUT: The request timed out.
364 * -EIO: An error occurred sending the query.
365 * -EINVAL: The MCMemberRecord values differed from the existing group's.
366 * -ENETRESET: Indicates that an fatal error has occurred on the multicast
367 * group, and the user must rejoin the group to continue using it.
369 struct ib_sa_multicast
*ib_sa_join_multicast(struct ib_sa_client
*client
,
370 struct ib_device
*device
, u8 port_num
,
371 struct ib_sa_mcmember_rec
*rec
,
372 ib_sa_comp_mask comp_mask
, gfp_t gfp_mask
,
373 int (*callback
)(int status
,
374 struct ib_sa_multicast
379 * ib_free_multicast - Frees the multicast tracking structure, and releases
380 * any reference on the multicast group.
381 * @multicast: Multicast tracking structure allocated by ib_join_multicast.
383 * This call blocks until the multicast identifier is destroyed. It may
384 * not be called from within the multicast callback; however, returning a non-
385 * zero value from the callback will result in destroying the multicast
386 * tracking structure.
388 void ib_sa_free_multicast(struct ib_sa_multicast
*multicast
);
391 * ib_get_mcmember_rec - Looks up a multicast member record by its MGID and
392 * returns it if found.
393 * @device: Device associated with the multicast group.
394 * @port_num: Port on the specified device to associate with the multicast
396 * @mgid: MGID of multicast group.
397 * @rec: Location to copy SA multicast member record.
399 int ib_sa_get_mcmember_rec(struct ib_device
*device
, u8 port_num
,
400 union ib_gid
*mgid
, struct ib_sa_mcmember_rec
*rec
);
403 * ib_init_ah_from_mcmember - Initialize address handle attributes based on
404 * an SA multicast member record.
406 int ib_init_ah_from_mcmember(struct ib_device
*device
, u8 port_num
,
407 struct ib_sa_mcmember_rec
*rec
,
408 struct net_device
*ndev
,
409 enum ib_gid_type gid_type
,
410 struct ib_ah_attr
*ah_attr
);
413 * ib_init_ah_from_path - Initialize address handle attributes based on an SA
416 int ib_init_ah_from_path(struct ib_device
*device
, u8 port_num
,
417 struct ib_sa_path_rec
*rec
,
418 struct ib_ah_attr
*ah_attr
);
421 * ib_sa_pack_path - Conert a path record from struct ib_sa_path_rec
422 * to IB MAD wire format.
424 void ib_sa_pack_path(struct ib_sa_path_rec
*rec
, void *attribute
);
427 * ib_sa_unpack_path - Convert a path record from MAD format to struct
430 void ib_sa_unpack_path(void *attribute
, struct ib_sa_path_rec
*rec
);
432 /* Support GuidInfoRecord */
433 int ib_sa_guid_info_rec_query(struct ib_sa_client
*client
,
434 struct ib_device
*device
, u8 port_num
,
435 struct ib_sa_guidinfo_rec
*rec
,
436 ib_sa_comp_mask comp_mask
, u8 method
,
437 int timeout_ms
, gfp_t gfp_mask
,
438 void (*callback
)(int status
,
439 struct ib_sa_guidinfo_rec
*resp
,
442 struct ib_sa_query
**sa_query
);
444 /* Support get SA ClassPortInfo */
445 int ib_sa_classport_info_rec_query(struct ib_sa_client
*client
,
446 struct ib_device
*device
, u8 port_num
,
447 int timeout_ms
, gfp_t gfp_mask
,
448 void (*callback
)(int status
,
449 struct ib_class_port_info
*resp
,
452 struct ib_sa_query
**sa_query
);