summaryrefslogtreecommitdiff
path: root/include/rdma/ib_sa.h
blob: 0f4f5ec85e82a53cd05220eb8cd7bbde609ac792 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
/*
 * Copyright (c) 2004 Topspin Communications.  All rights reserved.
 * Copyright (c) 2005 Voltaire, Inc.  All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 * $Id: ib_sa.h 2811 2005-07-06 18:11:43Z halr $
 */

#ifndef IB_SA_H
#define IB_SA_H

#include <linux/compiler.h>

#include <rdma/ib_verbs.h>
#include <rdma/ib_mad.h>

enum {
	IB_SA_CLASS_VERSION		= 2,	/* IB spec version 1.1/1.2 */

	IB_SA_METHOD_GET_TABLE		= 0x12,
	IB_SA_METHOD_GET_TABLE_RESP	= 0x92,
	IB_SA_METHOD_DELETE		= 0x15,
	IB_SA_METHOD_DELETE_RESP	= 0x95,
	IB_SA_METHOD_GET_MULTI		= 0x14,
	IB_SA_METHOD_GET_MULTI_RESP	= 0x94,
	IB_SA_METHOD_GET_TRACE_TBL	= 0x13
};

enum ib_sa_selector {
	IB_SA_GTE  = 0,
	IB_SA_LTE  = 1,
	IB_SA_EQ   = 2,
	/*
	 * The meaning of "best" depends on the attribute: for
	 * example, for MTU best will return the largest available
	 * MTU, while for packet life time, best will return the
	 * smallest available life time.
	 */
	IB_SA_BEST = 3
};

enum ib_sa_rate {
	IB_SA_RATE_2_5_GBPS = 2,
	IB_SA_RATE_5_GBPS   = 5,
	IB_SA_RATE_10_GBPS  = 3,
	IB_SA_RATE_20_GBPS  = 6,
	IB_SA_RATE_30_GBPS  = 4,
	IB_SA_RATE_40_GBPS  = 7,
	IB_SA_RATE_60_GBPS  = 8,
	IB_SA_RATE_80_GBPS  = 9,
	IB_SA_RATE_120_GBPS = 10
};

static inline int ib_sa_rate_enum_to_int(enum ib_sa_rate rate)
{
	switch (rate) {
	case IB_SA_RATE_2_5_GBPS: return  1;
	case IB_SA_RATE_5_GBPS:   return  2;
	case IB_SA_RATE_10_GBPS:  return  4;
	case IB_SA_RATE_20_GBPS:  return  8;
	case IB_SA_RATE_30_GBPS:  return 12;
	case IB_SA_RATE_40_GBPS:  return 16;
	case IB_SA_RATE_60_GBPS:  return 24;
	case IB_SA_RATE_80_GBPS:  return 32;
	case IB_SA_RATE_120_GBPS: return 48;
	default: 	          return -1;
	}
}

/*
 * Structures for SA records are named "struct ib_sa_xxx_rec."  No
 * attempt is made to pack structures to match the physical layout of
 * SA records in SA MADs; all packing and unpacking is handled by the
 * SA query code.
 *
 * For a record with structure ib_sa_xxx_rec, the naming convention
 * for the component mask value for field yyy is IB_SA_XXX_REC_YYY (we
 * never use different abbreviations or otherwise change the spelling
 * of xxx/yyy between ib_sa_xxx_rec.yyy and IB_SA_XXX_REC_YYY).
 *
 * Reserved rows are indicated with comments to help maintainability.
 */

/* reserved:								 0 */
/* reserved:								 1 */
#define IB_SA_PATH_REC_DGID				IB_SA_COMP_MASK( 2)
#define IB_SA_PATH_REC_SGID				IB_SA_COMP_MASK( 3)
#define IB_SA_PATH_REC_DLID				IB_SA_COMP_MASK( 4)
#define IB_SA_PATH_REC_SLID				IB_SA_COMP_MASK( 5)
#define IB_SA_PATH_REC_RAW_TRAFFIC			IB_SA_COMP_MASK( 6)
/* reserved:								 7 */
#define IB_SA_PATH_REC_FLOW_LABEL       		IB_SA_COMP_MASK( 8)
#define IB_SA_PATH_REC_HOP_LIMIT			IB_SA_COMP_MASK( 9)
#define IB_SA_PATH_REC_TRAFFIC_CLASS			IB_SA_COMP_MASK(10)
#define IB_SA_PATH_REC_REVERSIBLE			IB_SA_COMP_MASK(11)
#define IB_SA_PATH_REC_NUMB_PATH			IB_SA_COMP_MASK(12)
#define IB_SA_PATH_REC_PKEY				IB_SA_COMP_MASK(13)
/* reserved:								14 */
#define IB_SA_PATH_REC_SL				IB_SA_COMP_MASK(15)
#define IB_SA_PATH_REC_MTU_SELECTOR			IB_SA_COMP_MASK(16)
#define IB_SA_PATH_REC_MTU				IB_SA_COMP_MASK(17)
#define IB_SA_PATH_REC_RATE_SELECTOR			IB_SA_COMP_MASK(18)
#define IB_SA_PATH_REC_RATE				IB_SA_COMP_MASK(19)
#define IB_SA_PATH_REC_PACKET_LIFE_TIME_SELECTOR	IB_SA_COMP_MASK(20)
#define IB_SA_PATH_REC_PACKET_LIFE_TIME			IB_SA_COMP_MASK(21)
#define IB_SA_PATH_REC_PREFERENCE			IB_SA_COMP_MASK(22)

struct ib_sa_path_rec {
	/* reserved */
	/* reserved */
	union ib_gid dgid;
	union ib_gid sgid;
	__be16       dlid;
	__be16       slid;
	int          raw_traffic;
	/* reserved */
	__be32       flow_label;
	u8           hop_limit;
	u8           traffic_class;
	int          reversible;
	u8           numb_path;
	__be16       pkey;
	/* reserved */
	u8           sl;
	u8           mtu_selector;
	u8           mtu;
	u8           rate_selector;
	u8           rate;
	u8           packet_life_time_selector;
	u8           packet_life_time;
	u8           preference;
};

#define IB_SA_MCMEMBER_REC_MGID				IB_SA_COMP_MASK( 0)
#define IB_SA_MCMEMBER_REC_PORT_GID			IB_SA_COMP_MASK( 1)
#define IB_SA_MCMEMBER_REC_QKEY				IB_SA_COMP_MASK( 2)
#define IB_SA_MCMEMBER_REC_MLID				IB_SA_COMP_MASK( 3)
#define IB_SA_MCMEMBER_REC_MTU_SELECTOR			IB_SA_COMP_MASK( 4)
#define IB_SA_MCMEMBER_REC_MTU				IB_SA_COMP_MASK( 5)
#define IB_SA_MCMEMBER_REC_TRAFFIC_CLASS		IB_SA_COMP_MASK( 6)
#define IB_SA_MCMEMBER_REC_PKEY				IB_SA_COMP_MASK( 7)
#define IB_SA_MCMEMBER_REC_RATE_SELECTOR		IB_SA_COMP_MASK( 8)
#define IB_SA_MCMEMBER_REC_RATE				IB_SA_COMP_MASK( 9)
#define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME_SELECTOR	IB_SA_COMP_MASK(10)
#define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME		IB_SA_COMP_MASK(11)
#define IB_SA_MCMEMBER_REC_SL				IB_SA_COMP_MASK(12)
#define IB_SA_MCMEMBER_REC_FLOW_LABEL			IB_SA_COMP_MASK(13)
#define IB_SA_MCMEMBER_REC_HOP_LIMIT			IB_SA_COMP_MASK(14)
#define IB_SA_MCMEMBER_REC_SCOPE			IB_SA_COMP_MASK(15)
#define IB_SA_MCMEMBER_REC_JOIN_STATE			IB_SA_COMP_MASK(16)
#define IB_SA_MCMEMBER_REC_PROXY_JOIN			IB_SA_COMP_MASK(17)

struct ib_sa_mcmember_rec {
	union ib_gid mgid;
	union ib_gid port_gid;
	__be32       qkey;
	__be16       mlid;
	u8           mtu_selector;
	u8           mtu;
	u8           traffic_class;
	__be16       pkey;
	u8 	     rate_selector;
	u8 	     rate;
	u8 	     packet_life_time_selector;
	u8 	     packet_life_time;
	u8           sl;
	__be32       flow_label;
	u8           hop_limit;
	u8           scope;
	u8           join_state;
	int          proxy_join;
};

/* Service Record Component Mask Sec 15.2.5.14 Ver 1.1	*/
#define IB_SA_SERVICE_REC_SERVICE_ID			IB_SA_COMP_MASK( 0)
#define IB_SA_SERVICE_REC_SERVICE_GID			IB_SA_COMP_MASK( 1)
#define IB_SA_SERVICE_REC_SERVICE_PKEY			IB_SA_COMP_MASK( 2)
/* reserved:								 3 */
#define IB_SA_SERVICE_REC_SERVICE_LEASE			IB_SA_COMP_MASK( 4)
#define IB_SA_SERVICE_REC_SERVICE_KEY			IB_SA_COMP_MASK( 5)
#define IB_SA_SERVICE_REC_SERVICE_NAME			IB_SA_COMP_MASK( 6)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_0		IB_SA_COMP_MASK( 7)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_1		IB_SA_COMP_MASK( 8)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_2		IB_SA_COMP_MASK( 9)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_3		IB_SA_COMP_MASK(10)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_4		IB_SA_COMP_MASK(11)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_5		IB_SA_COMP_MASK(12)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_6		IB_SA_COMP_MASK(13)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_7		IB_SA_COMP_MASK(14)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_8		IB_SA_COMP_MASK(15)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_9		IB_SA_COMP_MASK(16)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_10		IB_SA_COMP_MASK(17)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_11		IB_SA_COMP_MASK(18)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_12		IB_SA_COMP_MASK(19)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_13		IB_SA_COMP_MASK(20)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_14		IB_SA_COMP_MASK(21)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_15		IB_SA_COMP_MASK(22)
#define IB_SA_SERVICE_REC_SERVICE_DATA16_0		IB_SA_COMP_MASK(23)
#define IB_SA_SERVICE_REC_SERVICE_DATA16_1		IB_SA_COMP_MASK(24)
#define IB_SA_SERVICE_REC_SERVICE_DATA16_2		IB_SA_COMP_MASK(25)
#define IB_SA_SERVICE_REC_SERVICE_DATA16_3		IB_SA_COMP_MASK(26)
#define IB_SA_SERVICE_REC_SERVICE_DATA16_4		IB_SA_COMP_MASK(27)
#define IB_SA_SERVICE_REC_SERVICE_DATA16_5		IB_SA_COMP_MASK(28)
#define IB_SA_SERVICE_REC_SERVICE_DATA16_6		IB_SA_COMP_MASK(29)
#define IB_SA_SERVICE_REC_SERVICE_DATA16_7		IB_SA_COMP_MASK(30)
#define IB_SA_SERVICE_REC_SERVICE_DATA32_0		IB_SA_COMP_MASK(31)
#define IB_SA_SERVICE_REC_SERVICE_DATA32_1		IB_SA_COMP_MASK(32)
#define IB_SA_SERVICE_REC_SERVICE_DATA32_2		IB_SA_COMP_MASK(33)
#define IB_SA_SERVICE_REC_SERVICE_DATA32_3		IB_SA_COMP_MASK(34)
#define IB_SA_SERVICE_REC_SERVICE_DATA64_0		IB_SA_COMP_MASK(35)
#define IB_SA_SERVICE_REC_SERVICE_DATA64_1		IB_SA_COMP_MASK(36)

#define IB_DEFAULT_SERVICE_LEASE 	0xFFFFFFFF

struct ib_sa_service_rec {
	u64		id;
	union ib_gid	gid;
	__be16 		pkey;
	/* reserved */
	u32		lease;
	u8		key[16];
	u8		name[64];
	u8		data8[16];
	u16		data16[8];
	u32		data32[4];
	u64		data64[2];
};

struct ib_sa_query;

void ib_sa_cancel_query(int id, struct ib_sa_query *query);

int ib_sa_path_rec_get(struct ib_device *device, u8 port_num,
		       struct ib_sa_path_rec *rec,
		       ib_sa_comp_mask comp_mask,
		       int timeout_ms, unsigned int __nocast gfp_mask,
		       void (*callback)(int status,
					struct ib_sa_path_rec *resp,
					void *context),
		       void *context,
		       struct ib_sa_query **query);

int ib_sa_mcmember_rec_query(struct ib_device *device, u8 port_num,
			     u8 method,
			     struct ib_sa_mcmember_rec *rec,
			     ib_sa_comp_mask comp_mask,
			     int timeout_ms, unsigned int __nocast gfp_mask,
			     void (*callback)(int status,
					      struct ib_sa_mcmember_rec *resp,
					      void *context),
			     void *context,
			     struct ib_sa_query **query);

int ib_sa_service_rec_query(struct ib_device *device, u8 port_num,
			 u8 method,
			 struct ib_sa_service_rec *rec,
			 ib_sa_comp_mask comp_mask,
			 int timeout_ms, unsigned int __nocast gfp_mask,
			 void (*callback)(int status,
					  struct ib_sa_service_rec *resp,
					  void *context),
			 void *context,
			 struct ib_sa_query **sa_query);

/**
 * ib_sa_mcmember_rec_set - Start an MCMember set query
 * @device:device to send query on
 * @port_num: port number to send query on
 * @rec:MCMember Record to send in query
 * @comp_mask:component mask to send in query
 * @timeout_ms:time to wait for response
 * @gfp_mask:GFP mask to use for internal allocations
 * @callback:function called when query completes, times out or is
 * canceled
 * @context:opaque user context passed to callback
 * @sa_query:query context, used to cancel query
 *
 * Send an MCMember Set query to the SA (eg to join a multicast
 * group).  The callback function will be called when the query
 * completes (or fails); status is 0 for a successful response, -EINTR
 * if the query is canceled, -ETIMEDOUT is the query timed out, or
 * -EIO if an error occurred sending the query.  The resp parameter of
 * the callback is only valid if status is 0.
 *
 * If the return value of ib_sa_mcmember_rec_set() is negative, it is
 * an error code.  Otherwise it is a query ID that can be used to
 * cancel the query.
 */
static inline int
ib_sa_mcmember_rec_set(struct ib_device *device, u8 port_num,
		       struct ib_sa_mcmember_rec *rec,
		       ib_sa_comp_mask comp_mask,
		       int timeout_ms, unsigned int __nocast gfp_mask,
		       void (*callback)(int status,
					struct ib_sa_mcmember_rec *resp,
					void *context),
		       void *context,
		       struct ib_sa_query **query)
{
	return ib_sa_mcmember_rec_query(device, port_num,
					IB_MGMT_METHOD_SET,
					rec, comp_mask,
					timeout_ms, gfp_mask, callback,
					context, query);
}

/**
 * ib_sa_mcmember_rec_delete - Start an MCMember delete query
 * @device:device to send query on
 * @port_num: port number to send query on
 * @rec:MCMember Record to send in query
 * @comp_mask:component mask to send in query
 * @timeout_ms:time to wait for response
 * @gfp_mask:GFP mask to use for internal allocations
 * @callback:function called when query completes, times out or is
 * canceled
 * @context:opaque user context passed to callback
 * @sa_query:query context, used to cancel query
 *
 * Send an MCMember Delete query to the SA (eg to leave a multicast
 * group).  The callback function will be called when the query
 * completes (or fails); status is 0 for a successful response, -EINTR
 * if the query is canceled, -ETIMEDOUT is the query timed out, or
 * -EIO if an error occurred sending the query.  The resp parameter of
 * the callback is only valid if status is 0.
 *
 * If the return value of ib_sa_mcmember_rec_delete() is negative, it
 * is an error code.  Otherwise it is a query ID that can be used to
 * cancel the query.
 */
static inline int
ib_sa_mcmember_rec_delete(struct ib_device *device, u8 port_num,
			  struct ib_sa_mcmember_rec *rec,
			  ib_sa_comp_mask comp_mask,
			  int timeout_ms, unsigned int __nocast gfp_mask,
			  void (*callback)(int status,
					   struct ib_sa_mcmember_rec *resp,
					   void *context),
			  void *context,
			  struct ib_sa_query **query)
{
	return ib_sa_mcmember_rec_query(device, port_num,
					IB_SA_METHOD_DELETE,
					rec, comp_mask,
					timeout_ms, gfp_mask, callback,
					context, query);
}


#endif /* IB_SA_H */