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
34 * $Id: ib_sa.h 2811 2005-07-06 18:11:43Z halr $
40 #include <linux/completion.h>
41 #include <linux/compiler.h>
43 #include <asm/atomic.h>
45 #include <rdma/ib_verbs.h>
46 #include <rdma/ib_mad.h>
49 IB_SA_CLASS_VERSION = 2, /* IB spec version 1.1/1.2 */
51 IB_SA_METHOD_GET_TABLE = 0x12,
52 IB_SA_METHOD_GET_TABLE_RESP = 0x92,
53 IB_SA_METHOD_DELETE = 0x15,
54 IB_SA_METHOD_DELETE_RESP = 0x95,
55 IB_SA_METHOD_GET_MULTI = 0x14,
56 IB_SA_METHOD_GET_MULTI_RESP = 0x94,
57 IB_SA_METHOD_GET_TRACE_TBL = 0x13
61 IB_SA_ATTR_CLASS_PORTINFO = 0x01,
62 IB_SA_ATTR_NOTICE = 0x02,
63 IB_SA_ATTR_INFORM_INFO = 0x03,
64 IB_SA_ATTR_NODE_REC = 0x11,
65 IB_SA_ATTR_PORT_INFO_REC = 0x12,
66 IB_SA_ATTR_SL2VL_REC = 0x13,
67 IB_SA_ATTR_SWITCH_REC = 0x14,
68 IB_SA_ATTR_LINEAR_FDB_REC = 0x15,
69 IB_SA_ATTR_RANDOM_FDB_REC = 0x16,
70 IB_SA_ATTR_MCAST_FDB_REC = 0x17,
71 IB_SA_ATTR_SM_INFO_REC = 0x18,
72 IB_SA_ATTR_LINK_REC = 0x20,
73 IB_SA_ATTR_GUID_INFO_REC = 0x30,
74 IB_SA_ATTR_SERVICE_REC = 0x31,
75 IB_SA_ATTR_PARTITION_REC = 0x33,
76 IB_SA_ATTR_PATH_REC = 0x35,
77 IB_SA_ATTR_VL_ARB_REC = 0x36,
78 IB_SA_ATTR_MC_MEMBER_REC = 0x38,
79 IB_SA_ATTR_TRACE_REC = 0x39,
80 IB_SA_ATTR_MULTI_PATH_REC = 0x3a,
81 IB_SA_ATTR_SERVICE_ASSOC_REC = 0x3b,
82 IB_SA_ATTR_INFORM_INFO_REC = 0xf3
90 * The meaning of "best" depends on the attribute: for
91 * example, for MTU best will return the largest available
92 * MTU, while for packet life time, best will return the
93 * smallest available life time.
99 * Structures for SA records are named "struct ib_sa_xxx_rec." No
100 * attempt is made to pack structures to match the physical layout of
101 * SA records in SA MADs; all packing and unpacking is handled by the
104 * For a record with structure ib_sa_xxx_rec, the naming convention
105 * for the component mask value for field yyy is IB_SA_XXX_REC_YYY (we
106 * never use different abbreviations or otherwise change the spelling
107 * of xxx/yyy between ib_sa_xxx_rec.yyy and IB_SA_XXX_REC_YYY).
109 * Reserved rows are indicated with comments to help maintainability.
114 #define IB_SA_PATH_REC_DGID IB_SA_COMP_MASK( 2)
115 #define IB_SA_PATH_REC_SGID IB_SA_COMP_MASK( 3)
116 #define IB_SA_PATH_REC_DLID IB_SA_COMP_MASK( 4)
117 #define IB_SA_PATH_REC_SLID IB_SA_COMP_MASK( 5)
118 #define IB_SA_PATH_REC_RAW_TRAFFIC IB_SA_COMP_MASK( 6)
120 #define IB_SA_PATH_REC_FLOW_LABEL IB_SA_COMP_MASK( 8)
121 #define IB_SA_PATH_REC_HOP_LIMIT IB_SA_COMP_MASK( 9)
122 #define IB_SA_PATH_REC_TRAFFIC_CLASS IB_SA_COMP_MASK(10)
123 #define IB_SA_PATH_REC_REVERSIBLE IB_SA_COMP_MASK(11)
124 #define IB_SA_PATH_REC_NUMB_PATH IB_SA_COMP_MASK(12)
125 #define IB_SA_PATH_REC_PKEY IB_SA_COMP_MASK(13)
127 #define IB_SA_PATH_REC_SL IB_SA_COMP_MASK(15)
128 #define IB_SA_PATH_REC_MTU_SELECTOR IB_SA_COMP_MASK(16)
129 #define IB_SA_PATH_REC_MTU IB_SA_COMP_MASK(17)
130 #define IB_SA_PATH_REC_RATE_SELECTOR IB_SA_COMP_MASK(18)
131 #define IB_SA_PATH_REC_RATE IB_SA_COMP_MASK(19)
132 #define IB_SA_PATH_REC_PACKET_LIFE_TIME_SELECTOR IB_SA_COMP_MASK(20)
133 #define IB_SA_PATH_REC_PACKET_LIFE_TIME IB_SA_COMP_MASK(21)
134 #define IB_SA_PATH_REC_PREFERENCE IB_SA_COMP_MASK(22)
136 struct ib_sa_path_rec {
157 u8 packet_life_time_selector;
162 #define IB_SA_MCMEMBER_REC_MGID IB_SA_COMP_MASK( 0)
163 #define IB_SA_MCMEMBER_REC_PORT_GID IB_SA_COMP_MASK( 1)
164 #define IB_SA_MCMEMBER_REC_QKEY IB_SA_COMP_MASK( 2)
165 #define IB_SA_MCMEMBER_REC_MLID IB_SA_COMP_MASK( 3)
166 #define IB_SA_MCMEMBER_REC_MTU_SELECTOR IB_SA_COMP_MASK( 4)
167 #define IB_SA_MCMEMBER_REC_MTU IB_SA_COMP_MASK( 5)
168 #define IB_SA_MCMEMBER_REC_TRAFFIC_CLASS IB_SA_COMP_MASK( 6)
169 #define IB_SA_MCMEMBER_REC_PKEY IB_SA_COMP_MASK( 7)
170 #define IB_SA_MCMEMBER_REC_RATE_SELECTOR IB_SA_COMP_MASK( 8)
171 #define IB_SA_MCMEMBER_REC_RATE IB_SA_COMP_MASK( 9)
172 #define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME_SELECTOR IB_SA_COMP_MASK(10)
173 #define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME IB_SA_COMP_MASK(11)
174 #define IB_SA_MCMEMBER_REC_SL IB_SA_COMP_MASK(12)
175 #define IB_SA_MCMEMBER_REC_FLOW_LABEL IB_SA_COMP_MASK(13)
176 #define IB_SA_MCMEMBER_REC_HOP_LIMIT IB_SA_COMP_MASK(14)
177 #define IB_SA_MCMEMBER_REC_SCOPE IB_SA_COMP_MASK(15)
178 #define IB_SA_MCMEMBER_REC_JOIN_STATE IB_SA_COMP_MASK(16)
179 #define IB_SA_MCMEMBER_REC_PROXY_JOIN IB_SA_COMP_MASK(17)
181 struct ib_sa_mcmember_rec {
183 union ib_gid port_gid;
192 u8 packet_life_time_selector;
202 /* Service Record Component Mask Sec 15.2.5.14 Ver 1.1 */
203 #define IB_SA_SERVICE_REC_SERVICE_ID IB_SA_COMP_MASK( 0)
204 #define IB_SA_SERVICE_REC_SERVICE_GID IB_SA_COMP_MASK( 1)
205 #define IB_SA_SERVICE_REC_SERVICE_PKEY IB_SA_COMP_MASK( 2)
207 #define IB_SA_SERVICE_REC_SERVICE_LEASE IB_SA_COMP_MASK( 4)
208 #define IB_SA_SERVICE_REC_SERVICE_KEY IB_SA_COMP_MASK( 5)
209 #define IB_SA_SERVICE_REC_SERVICE_NAME IB_SA_COMP_MASK( 6)
210 #define IB_SA_SERVICE_REC_SERVICE_DATA8_0 IB_SA_COMP_MASK( 7)
211 #define IB_SA_SERVICE_REC_SERVICE_DATA8_1 IB_SA_COMP_MASK( 8)
212 #define IB_SA_SERVICE_REC_SERVICE_DATA8_2 IB_SA_COMP_MASK( 9)
213 #define IB_SA_SERVICE_REC_SERVICE_DATA8_3 IB_SA_COMP_MASK(10)
214 #define IB_SA_SERVICE_REC_SERVICE_DATA8_4 IB_SA_COMP_MASK(11)
215 #define IB_SA_SERVICE_REC_SERVICE_DATA8_5 IB_SA_COMP_MASK(12)
216 #define IB_SA_SERVICE_REC_SERVICE_DATA8_6 IB_SA_COMP_MASK(13)
217 #define IB_SA_SERVICE_REC_SERVICE_DATA8_7 IB_SA_COMP_MASK(14)
218 #define IB_SA_SERVICE_REC_SERVICE_DATA8_8 IB_SA_COMP_MASK(15)
219 #define IB_SA_SERVICE_REC_SERVICE_DATA8_9 IB_SA_COMP_MASK(16)
220 #define IB_SA_SERVICE_REC_SERVICE_DATA8_10 IB_SA_COMP_MASK(17)
221 #define IB_SA_SERVICE_REC_SERVICE_DATA8_11 IB_SA_COMP_MASK(18)
222 #define IB_SA_SERVICE_REC_SERVICE_DATA8_12 IB_SA_COMP_MASK(19)
223 #define IB_SA_SERVICE_REC_SERVICE_DATA8_13 IB_SA_COMP_MASK(20)
224 #define IB_SA_SERVICE_REC_SERVICE_DATA8_14 IB_SA_COMP_MASK(21)
225 #define IB_SA_SERVICE_REC_SERVICE_DATA8_15 IB_SA_COMP_MASK(22)
226 #define IB_SA_SERVICE_REC_SERVICE_DATA16_0 IB_SA_COMP_MASK(23)
227 #define IB_SA_SERVICE_REC_SERVICE_DATA16_1 IB_SA_COMP_MASK(24)
228 #define IB_SA_SERVICE_REC_SERVICE_DATA16_2 IB_SA_COMP_MASK(25)
229 #define IB_SA_SERVICE_REC_SERVICE_DATA16_3 IB_SA_COMP_MASK(26)
230 #define IB_SA_SERVICE_REC_SERVICE_DATA16_4 IB_SA_COMP_MASK(27)
231 #define IB_SA_SERVICE_REC_SERVICE_DATA16_5 IB_SA_COMP_MASK(28)
232 #define IB_SA_SERVICE_REC_SERVICE_DATA16_6 IB_SA_COMP_MASK(29)
233 #define IB_SA_SERVICE_REC_SERVICE_DATA16_7 IB_SA_COMP_MASK(30)
234 #define IB_SA_SERVICE_REC_SERVICE_DATA32_0 IB_SA_COMP_MASK(31)
235 #define IB_SA_SERVICE_REC_SERVICE_DATA32_1 IB_SA_COMP_MASK(32)
236 #define IB_SA_SERVICE_REC_SERVICE_DATA32_2 IB_SA_COMP_MASK(33)
237 #define IB_SA_SERVICE_REC_SERVICE_DATA32_3 IB_SA_COMP_MASK(34)
238 #define IB_SA_SERVICE_REC_SERVICE_DATA64_0 IB_SA_COMP_MASK(35)
239 #define IB_SA_SERVICE_REC_SERVICE_DATA64_1 IB_SA_COMP_MASK(36)
241 #define IB_DEFAULT_SERVICE_LEASE 0xFFFFFFFF
243 struct ib_sa_service_rec {
257 struct ib_sa_client {
259 struct completion comp;
263 * ib_sa_register_client - Register an SA client.
265 void ib_sa_register_client(struct ib_sa_client *client);
268 * ib_sa_unregister_client - Deregister an SA client.
269 * @client: Client object to deregister.
271 void ib_sa_unregister_client(struct ib_sa_client *client);
275 void ib_sa_cancel_query(int id, struct ib_sa_query *query);
277 int ib_sa_path_rec_get(struct ib_sa_client *client,
278 struct ib_device *device, u8 port_num,
279 struct ib_sa_path_rec *rec,
280 ib_sa_comp_mask comp_mask,
281 int timeout_ms, gfp_t gfp_mask,
282 void (*callback)(int status,
283 struct ib_sa_path_rec *resp,
286 struct ib_sa_query **query);
288 int ib_sa_service_rec_query(struct ib_sa_client *client,
289 struct ib_device *device, u8 port_num,
291 struct ib_sa_service_rec *rec,
292 ib_sa_comp_mask comp_mask,
293 int timeout_ms, gfp_t gfp_mask,
294 void (*callback)(int status,
295 struct ib_sa_service_rec *resp,
298 struct ib_sa_query **sa_query);
300 struct ib_sa_multicast {
301 struct ib_sa_mcmember_rec rec;
302 ib_sa_comp_mask comp_mask;
303 int (*callback)(int status,
304 struct ib_sa_multicast *multicast);
309 * ib_sa_join_multicast - Initiates a join request to the specified multicast
312 * @device: Device associated with the multicast group.
313 * @port_num: Port on the specified device to associate with the multicast
315 * @rec: SA multicast member record specifying group attributes.
316 * @comp_mask: Component mask indicating which group attributes of %rec are
318 * @gfp_mask: GFP mask for memory allocations.
319 * @callback: User callback invoked once the join operation completes.
320 * @context: User specified context stored with the ib_sa_multicast structure.
322 * This call initiates a multicast join request with the SA for the specified
323 * multicast group. If the join operation is started successfully, it returns
324 * an ib_sa_multicast structure that is used to track the multicast operation.
325 * Users must free this structure by calling ib_free_multicast, even if the
326 * join operation later fails. (The callback status is non-zero.)
328 * If the join operation fails; status will be non-zero, with the following
330 * -ETIMEDOUT: The request timed out.
331 * -EIO: An error occurred sending the query.
332 * -EINVAL: The MCMemberRecord values differed from the existing group's.
333 * -ENETRESET: Indicates that an fatal error has occurred on the multicast
334 * group, and the user must rejoin the group to continue using it.
336 struct ib_sa_multicast *ib_sa_join_multicast(struct ib_sa_client *client,
337 struct ib_device *device, u8 port_num,
338 struct ib_sa_mcmember_rec *rec,
339 ib_sa_comp_mask comp_mask, gfp_t gfp_mask,
340 int (*callback)(int status,
341 struct ib_sa_multicast
346 * ib_free_multicast - Frees the multicast tracking structure, and releases
347 * any reference on the multicast group.
348 * @multicast: Multicast tracking structure allocated by ib_join_multicast.
350 * This call blocks until the multicast identifier is destroyed. It may
351 * not be called from within the multicast callback; however, returning a non-
352 * zero value from the callback will result in destroying the multicast
353 * tracking structure.
355 void ib_sa_free_multicast(struct ib_sa_multicast *multicast);
358 * ib_get_mcmember_rec - Looks up a multicast member record by its MGID and
359 * returns it if found.
360 * @device: Device associated with the multicast group.
361 * @port_num: Port on the specified device to associate with the multicast
363 * @mgid: MGID of multicast group.
364 * @rec: Location to copy SA multicast member record.
366 int ib_sa_get_mcmember_rec(struct ib_device *device, u8 port_num,
367 union ib_gid *mgid, struct ib_sa_mcmember_rec *rec);
370 * ib_init_ah_from_mcmember - Initialize address handle attributes based on
371 * an SA multicast member record.
373 int ib_init_ah_from_mcmember(struct ib_device *device, u8 port_num,
374 struct ib_sa_mcmember_rec *rec,
375 struct ib_ah_attr *ah_attr);
378 * ib_init_ah_from_path - Initialize address handle attributes based on an SA
381 int ib_init_ah_from_path(struct ib_device *device, u8 port_num,
382 struct ib_sa_path_rec *rec,
383 struct ib_ah_attr *ah_attr);