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1 | /* |
2 | * Copyright (c) 2004 Topspin Communications. All rights reserved. | |
3 | * | |
4 | * This software is available to you under a choice of one of two | |
5 | * licenses. You may choose to be licensed under the terms of the GNU | |
6 | * General Public License (GPL) Version 2, available from the file | |
7 | * COPYING in the main directory of this source tree, or the | |
8 | * OpenIB.org BSD license below: | |
9 | * | |
10 | * Redistribution and use in source and binary forms, with or | |
11 | * without modification, are permitted provided that the following | |
12 | * conditions are met: | |
13 | * | |
14 | * - Redistributions of source code must retain the above | |
15 | * copyright notice, this list of conditions and the following | |
16 | * disclaimer. | |
17 | * | |
18 | * - Redistributions in binary form must reproduce the above | |
19 | * copyright notice, this list of conditions and the following | |
20 | * disclaimer in the documentation and/or other materials | |
21 | * provided with the distribution. | |
22 | * | |
23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
24 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
25 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
26 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
27 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
28 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
29 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
30 | * SOFTWARE. | |
31 | * | |
32 | * $Id: ib_sa.h 1389 2004-12-27 22:56:47Z roland $ | |
33 | */ | |
34 | ||
35 | #ifndef IB_SA_H | |
36 | #define IB_SA_H | |
37 | ||
38 | #include <linux/compiler.h> | |
39 | ||
40 | #include <ib_verbs.h> | |
41 | #include <ib_mad.h> | |
42 | ||
43 | enum { | |
44 | IB_SA_CLASS_VERSION = 2, /* IB spec version 1.1/1.2 */ | |
45 | ||
46 | IB_SA_METHOD_DELETE = 0x15 | |
47 | }; | |
48 | ||
49 | enum ib_sa_selector { | |
50 | IB_SA_GTE = 0, | |
51 | IB_SA_LTE = 1, | |
52 | IB_SA_EQ = 2, | |
53 | /* | |
54 | * The meaning of "best" depends on the attribute: for | |
55 | * example, for MTU best will return the largest available | |
56 | * MTU, while for packet life time, best will return the | |
57 | * smallest available life time. | |
58 | */ | |
59 | IB_SA_BEST = 3 | |
60 | }; | |
61 | ||
62 | enum ib_sa_rate { | |
63 | IB_SA_RATE_2_5_GBPS = 2, | |
64 | IB_SA_RATE_5_GBPS = 5, | |
65 | IB_SA_RATE_10_GBPS = 3, | |
66 | IB_SA_RATE_20_GBPS = 6, | |
67 | IB_SA_RATE_30_GBPS = 4, | |
68 | IB_SA_RATE_40_GBPS = 7, | |
69 | IB_SA_RATE_60_GBPS = 8, | |
70 | IB_SA_RATE_80_GBPS = 9, | |
71 | IB_SA_RATE_120_GBPS = 10 | |
72 | }; | |
73 | ||
74 | static inline int ib_sa_rate_enum_to_int(enum ib_sa_rate rate) | |
75 | { | |
76 | switch (rate) { | |
77 | case IB_SA_RATE_2_5_GBPS: return 1; | |
78 | case IB_SA_RATE_5_GBPS: return 2; | |
79 | case IB_SA_RATE_10_GBPS: return 4; | |
80 | case IB_SA_RATE_20_GBPS: return 8; | |
81 | case IB_SA_RATE_30_GBPS: return 12; | |
82 | case IB_SA_RATE_40_GBPS: return 16; | |
83 | case IB_SA_RATE_60_GBPS: return 24; | |
84 | case IB_SA_RATE_80_GBPS: return 32; | |
85 | case IB_SA_RATE_120_GBPS: return 48; | |
86 | default: return -1; | |
87 | } | |
88 | } | |
89 | ||
90 | typedef u64 __bitwise ib_sa_comp_mask; | |
91 | ||
92 | #define IB_SA_COMP_MASK(n) ((__force ib_sa_comp_mask) cpu_to_be64(1ull << n)) | |
93 | ||
94 | /* | |
95 | * Structures for SA records are named "struct ib_sa_xxx_rec." No | |
96 | * attempt is made to pack structures to match the physical layout of | |
97 | * SA records in SA MADs; all packing and unpacking is handled by the | |
98 | * SA query code. | |
99 | * | |
100 | * For a record with structure ib_sa_xxx_rec, the naming convention | |
101 | * for the component mask value for field yyy is IB_SA_XXX_REC_YYY (we | |
102 | * never use different abbreviations or otherwise change the spelling | |
103 | * of xxx/yyy between ib_sa_xxx_rec.yyy and IB_SA_XXX_REC_YYY). | |
104 | * | |
105 | * Reserved rows are indicated with comments to help maintainability. | |
106 | */ | |
107 | ||
108 | /* reserved: 0 */ | |
109 | /* reserved: 1 */ | |
110 | #define IB_SA_PATH_REC_DGID IB_SA_COMP_MASK( 2) | |
111 | #define IB_SA_PATH_REC_SGID IB_SA_COMP_MASK( 3) | |
112 | #define IB_SA_PATH_REC_DLID IB_SA_COMP_MASK( 4) | |
113 | #define IB_SA_PATH_REC_SLID IB_SA_COMP_MASK( 5) | |
114 | #define IB_SA_PATH_REC_RAW_TRAFFIC IB_SA_COMP_MASK( 6) | |
115 | /* reserved: 7 */ | |
116 | #define IB_SA_PATH_REC_FLOW_LABEL IB_SA_COMP_MASK( 8) | |
117 | #define IB_SA_PATH_REC_HOP_LIMIT IB_SA_COMP_MASK( 9) | |
118 | #define IB_SA_PATH_REC_TRAFFIC_CLASS IB_SA_COMP_MASK(10) | |
119 | #define IB_SA_PATH_REC_REVERSIBLE IB_SA_COMP_MASK(11) | |
120 | #define IB_SA_PATH_REC_NUMB_PATH IB_SA_COMP_MASK(12) | |
121 | #define IB_SA_PATH_REC_PKEY IB_SA_COMP_MASK(13) | |
122 | /* reserved: 14 */ | |
123 | #define IB_SA_PATH_REC_SL IB_SA_COMP_MASK(15) | |
124 | #define IB_SA_PATH_REC_MTU_SELECTOR IB_SA_COMP_MASK(16) | |
125 | #define IB_SA_PATH_REC_MTU IB_SA_COMP_MASK(17) | |
126 | #define IB_SA_PATH_REC_RATE_SELECTOR IB_SA_COMP_MASK(18) | |
127 | #define IB_SA_PATH_REC_RATE IB_SA_COMP_MASK(19) | |
128 | #define IB_SA_PATH_REC_PACKET_LIFE_TIME_SELECTOR IB_SA_COMP_MASK(20) | |
129 | #define IB_SA_PATH_REC_PACKET_LIFE_TIME IB_SA_COMP_MASK(21) | |
130 | #define IB_SA_PATH_REC_PREFERENCE IB_SA_COMP_MASK(22) | |
131 | ||
132 | struct ib_sa_path_rec { | |
133 | /* reserved */ | |
134 | /* reserved */ | |
135 | union ib_gid dgid; | |
136 | union ib_gid sgid; | |
137 | u16 dlid; | |
138 | u16 slid; | |
139 | int raw_traffic; | |
140 | /* reserved */ | |
141 | u32 flow_label; | |
142 | u8 hop_limit; | |
143 | u8 traffic_class; | |
144 | int reversible; | |
145 | u8 numb_path; | |
146 | u16 pkey; | |
147 | /* reserved */ | |
148 | u8 sl; | |
149 | u8 mtu_selector; | |
150 | enum ib_mtu mtu; | |
151 | u8 rate_selector; | |
152 | u8 rate; | |
153 | u8 packet_life_time_selector; | |
154 | u8 packet_life_time; | |
155 | u8 preference; | |
156 | }; | |
157 | ||
158 | #define IB_SA_MCMEMBER_REC_MGID IB_SA_COMP_MASK( 0) | |
159 | #define IB_SA_MCMEMBER_REC_PORT_GID IB_SA_COMP_MASK( 1) | |
160 | #define IB_SA_MCMEMBER_REC_QKEY IB_SA_COMP_MASK( 2) | |
161 | #define IB_SA_MCMEMBER_REC_MLID IB_SA_COMP_MASK( 3) | |
162 | #define IB_SA_MCMEMBER_REC_MTU_SELECTOR IB_SA_COMP_MASK( 4) | |
163 | #define IB_SA_MCMEMBER_REC_MTU IB_SA_COMP_MASK( 5) | |
164 | #define IB_SA_MCMEMBER_REC_TRAFFIC_CLASS IB_SA_COMP_MASK( 6) | |
165 | #define IB_SA_MCMEMBER_REC_PKEY IB_SA_COMP_MASK( 7) | |
166 | #define IB_SA_MCMEMBER_REC_RATE_SELECTOR IB_SA_COMP_MASK( 8) | |
167 | #define IB_SA_MCMEMBER_REC_RATE IB_SA_COMP_MASK( 9) | |
168 | #define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME_SELECTOR IB_SA_COMP_MASK(10) | |
169 | #define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME IB_SA_COMP_MASK(11) | |
170 | #define IB_SA_MCMEMBER_REC_SL IB_SA_COMP_MASK(12) | |
171 | #define IB_SA_MCMEMBER_REC_FLOW_LABEL IB_SA_COMP_MASK(13) | |
172 | #define IB_SA_MCMEMBER_REC_HOP_LIMIT IB_SA_COMP_MASK(14) | |
173 | #define IB_SA_MCMEMBER_REC_SCOPE IB_SA_COMP_MASK(15) | |
174 | #define IB_SA_MCMEMBER_REC_JOIN_STATE IB_SA_COMP_MASK(16) | |
175 | #define IB_SA_MCMEMBER_REC_PROXY_JOIN IB_SA_COMP_MASK(17) | |
176 | ||
177 | struct ib_sa_mcmember_rec { | |
178 | union ib_gid mgid; | |
179 | union ib_gid port_gid; | |
180 | u32 qkey; | |
181 | u16 mlid; | |
182 | u8 mtu_selector; | |
183 | enum ib_mtu mtu; | |
184 | u8 traffic_class; | |
185 | u16 pkey; | |
186 | u8 rate_selector; | |
187 | u8 rate; | |
188 | u8 packet_life_time_selector; | |
189 | u8 packet_life_time; | |
190 | u8 sl; | |
191 | u32 flow_label; | |
192 | u8 hop_limit; | |
193 | u8 scope; | |
194 | u8 join_state; | |
195 | int proxy_join; | |
196 | }; | |
197 | ||
198 | struct ib_sa_query; | |
199 | ||
200 | void ib_sa_cancel_query(int id, struct ib_sa_query *query); | |
201 | ||
202 | int ib_sa_path_rec_get(struct ib_device *device, u8 port_num, | |
203 | struct ib_sa_path_rec *rec, | |
204 | ib_sa_comp_mask comp_mask, | |
205 | int timeout_ms, int gfp_mask, | |
206 | void (*callback)(int status, | |
207 | struct ib_sa_path_rec *resp, | |
208 | void *context), | |
209 | void *context, | |
210 | struct ib_sa_query **query); | |
211 | ||
212 | int ib_sa_mcmember_rec_query(struct ib_device *device, u8 port_num, | |
213 | u8 method, | |
214 | struct ib_sa_mcmember_rec *rec, | |
215 | ib_sa_comp_mask comp_mask, | |
216 | int timeout_ms, int gfp_mask, | |
217 | void (*callback)(int status, | |
218 | struct ib_sa_mcmember_rec *resp, | |
219 | void *context), | |
220 | void *context, | |
221 | struct ib_sa_query **query); | |
222 | ||
223 | /** | |
224 | * ib_sa_mcmember_rec_set - Start an MCMember set query | |
225 | * @device:device to send query on | |
226 | * @port_num: port number to send query on | |
227 | * @rec:MCMember Record to send in query | |
228 | * @comp_mask:component mask to send in query | |
229 | * @timeout_ms:time to wait for response | |
230 | * @gfp_mask:GFP mask to use for internal allocations | |
231 | * @callback:function called when query completes, times out or is | |
232 | * canceled | |
233 | * @context:opaque user context passed to callback | |
234 | * @sa_query:query context, used to cancel query | |
235 | * | |
236 | * Send an MCMember Set query to the SA (eg to join a multicast | |
237 | * group). The callback function will be called when the query | |
238 | * completes (or fails); status is 0 for a successful response, -EINTR | |
239 | * if the query is canceled, -ETIMEDOUT is the query timed out, or | |
240 | * -EIO if an error occurred sending the query. The resp parameter of | |
241 | * the callback is only valid if status is 0. | |
242 | * | |
243 | * If the return value of ib_sa_mcmember_rec_set() is negative, it is | |
244 | * an error code. Otherwise it is a query ID that can be used to | |
245 | * cancel the query. | |
246 | */ | |
247 | static inline int | |
248 | ib_sa_mcmember_rec_set(struct ib_device *device, u8 port_num, | |
249 | struct ib_sa_mcmember_rec *rec, | |
250 | ib_sa_comp_mask comp_mask, | |
251 | int timeout_ms, int gfp_mask, | |
252 | void (*callback)(int status, | |
253 | struct ib_sa_mcmember_rec *resp, | |
254 | void *context), | |
255 | void *context, | |
256 | struct ib_sa_query **query) | |
257 | { | |
258 | return ib_sa_mcmember_rec_query(device, port_num, | |
259 | IB_MGMT_METHOD_SET, | |
260 | rec, comp_mask, | |
261 | timeout_ms, gfp_mask, callback, | |
262 | context, query); | |
263 | } | |
264 | ||
265 | /** | |
266 | * ib_sa_mcmember_rec_delete - Start an MCMember delete query | |
267 | * @device:device to send query on | |
268 | * @port_num: port number to send query on | |
269 | * @rec:MCMember Record to send in query | |
270 | * @comp_mask:component mask to send in query | |
271 | * @timeout_ms:time to wait for response | |
272 | * @gfp_mask:GFP mask to use for internal allocations | |
273 | * @callback:function called when query completes, times out or is | |
274 | * canceled | |
275 | * @context:opaque user context passed to callback | |
276 | * @sa_query:query context, used to cancel query | |
277 | * | |
278 | * Send an MCMember Delete query to the SA (eg to leave a multicast | |
279 | * group). The callback function will be called when the query | |
280 | * completes (or fails); status is 0 for a successful response, -EINTR | |
281 | * if the query is canceled, -ETIMEDOUT is the query timed out, or | |
282 | * -EIO if an error occurred sending the query. The resp parameter of | |
283 | * the callback is only valid if status is 0. | |
284 | * | |
285 | * If the return value of ib_sa_mcmember_rec_delete() is negative, it | |
286 | * is an error code. Otherwise it is a query ID that can be used to | |
287 | * cancel the query. | |
288 | */ | |
289 | static inline int | |
290 | ib_sa_mcmember_rec_delete(struct ib_device *device, u8 port_num, | |
291 | struct ib_sa_mcmember_rec *rec, | |
292 | ib_sa_comp_mask comp_mask, | |
293 | int timeout_ms, int gfp_mask, | |
294 | void (*callback)(int status, | |
295 | struct ib_sa_mcmember_rec *resp, | |
296 | void *context), | |
297 | void *context, | |
298 | struct ib_sa_query **query) | |
299 | { | |
300 | return ib_sa_mcmember_rec_query(device, port_num, | |
301 | IB_SA_METHOD_DELETE, | |
302 | rec, comp_mask, | |
303 | timeout_ms, gfp_mask, callback, | |
304 | context, query); | |
305 | } | |
306 | ||
307 | ||
308 | #endif /* IB_SA_H */ |