1 /*
2 * Copyright (c) 2004 Intel Corporation. All rights reserved.
3 * Copyright (c) 2004 Topspin Corporation. All rights reserved.
4 * Copyright (c) 2004 Voltaire Corporation. All rights reserved.
5 *
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 the madirectory of this source tree, or the
10 * OpenIB.org BSD license below:
11 *
12 * Redistribution and use source and binary forms, with or
13 * withmodification, are permitted provided that the following
14 * conditions are met:
15 *
16 * - Redistributions of source code must retathe above
17 * copyright notice, this list of conditions and the following
18 * disclaimer.
19 *
20 * - Redistributions binary form must reproduce the above
21 * copyright notice, this list of conditions and the following
22 * disclaimer the documentation and/or other materials
23 * provided with the distribution.
24 *
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHWARRANTY 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. NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER AN
30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OF OR IN
31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS THE
32 * SOFTWARE.
33 */
34 #if !defined(CM_MSGS_H)
35 #define CM_MSGS_H
36
37 #include <rdma/ib_mad.h>
38 #include <rdma/ib_cm.h>
39
40 /*
41 * Parameters to routines below should be in network-byte order, and values
42 * are returned in network-byte order.
43 */
44
45 #define IB_CM_CLASS_VERSION 2 /* IB specification 1.2 */
46
47 #define CM_REQ_ATTR_ID cpu_to_be16(0x0010)
48 #define CM_MRA_ATTR_ID cpu_to_be16(0x0011)
49 #define CM_REJ_ATTR_ID cpu_to_be16(0x0012)
50 #define CM_REP_ATTR_ID cpu_to_be16(0x0013)
51 #define CM_RTU_ATTR_ID cpu_to_be16(0x0014)
52 #define CM_DREQ_ATTR_ID cpu_to_be16(0x0015)
53 #define CM_DREP_ATTR_ID cpu_to_be16(0x0016)
54 #define CM_SIDR_REQ_ATTR_ID cpu_to_be16(0x0017)
55 #define CM_SIDR_REP_ATTR_ID cpu_to_be16(0x0018)
56 #define CM_LAP_ATTR_ID cpu_to_be16(0x0019)
57 #define CM_APR_ATTR_ID cpu_to_be16(0x001A)
58
59 enum cm_msg_sequence {
60 CM_MSG_SEQUENCE_REQ,
61 CM_MSG_SEQUENCE_LAP,
62 CM_MSG_SEQUENCE_DREQ,
63 CM_MSG_SEQUENCE_SIDR
64 };
65
66 struct cm_req_msg {
67 struct ib_mad_hdr hdr;
68
69 __be32 local_comm_id;
70 __be32 rsvd4;
71 __be64 service_id;
72 __be64 local_ca_guid;
73 __be32 rsvd24;
74 __be32 local_qkey;
75 /* local QPN:24, responder resources:8 */
76 __be32 offset32;
77 /* local EECN:24, initiator depth:8 */
78 __be32 offset36;
79 /*
80 * remote EECN:24, remote CM response timeout:5,
81 * transport service type:2, end-to-end flow control:1
82 */
83 __be32 offset40;
84 /* starting PSN:24, local CM response timeout:5, retry count:3 */
85 __be32 offset44;
86 __be16 pkey;
87 /* path MTU:4, RDC exists:1, RNR retry count:3. */
88 u8 offset50;
89 /* max CM Retries:4, SRQ:1, rsvd:3 */
90 u8 offset51;
91
92 __be16 primary_local_lid;
93 __be16 primary_remote_lid;
94 union ib_gid primary_local_gid;
95 union ib_gid primary_remote_gid;
96 /* flow label:20, rsvd:6, packet rate:6 */
97 __be32 primary_offset88;
98 u8 primary_traffic_class;
99 u8 primary_hop_limit;
100 /* SL:4, subnet local:1, rsvd:3 */
101 u8 primary_offset94;
102 /* local ACK timeout:5, rsvd:3 */
103 u8 primary_offset95;
104
105 __be16 alt_local_lid;
106 __be16 alt_remote_lid;
107 union ib_gid alt_local_gid;
108 union ib_gid alt_remote_gid;
109 /* flow label:20, rsvd:6, packet rate:6 */
110 __be32 alt_offset132;
111 u8 alt_traffic_class;
112 u8 alt_hop_limit;
113 /* SL:4, subnet local:1, rsvd:3 */
114 u8 alt_offset138;
115 /* local ACK timeout:5, rsvd:3 */
116 u8 alt_offset139;
117
118 u8 private_data[IB_CM_REQ_PRIVATE_DATA_SIZE];
119
120 } __attribute__ ((packed));
121
cm_req_get_local_qpn(struct cm_req_msg * req_msg)122 static inline __be32 cm_req_get_local_qpn(struct cm_req_msg *req_msg)
123 {
124 return cpu_to_be32(be32_to_cpu(req_msg->offset32) >> 8);
125 }
126
cm_req_set_local_qpn(struct cm_req_msg * req_msg,__be32 qpn)127 static inline void cm_req_set_local_qpn(struct cm_req_msg *req_msg, __be32 qpn)
128 {
129 req_msg->offset32 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
130 (be32_to_cpu(req_msg->offset32) &
131 0x000000FF));
132 }
133
cm_req_get_resp_res(struct cm_req_msg * req_msg)134 static inline u8 cm_req_get_resp_res(struct cm_req_msg *req_msg)
135 {
136 return (u8) be32_to_cpu(req_msg->offset32);
137 }
138
cm_req_set_resp_res(struct cm_req_msg * req_msg,u8 resp_res)139 static inline void cm_req_set_resp_res(struct cm_req_msg *req_msg, u8 resp_res)
140 {
141 req_msg->offset32 = cpu_to_be32(resp_res |
142 (be32_to_cpu(req_msg->offset32) &
143 0xFFFFFF00));
144 }
145
cm_req_get_init_depth(struct cm_req_msg * req_msg)146 static inline u8 cm_req_get_init_depth(struct cm_req_msg *req_msg)
147 {
148 return (u8) be32_to_cpu(req_msg->offset36);
149 }
150
cm_req_set_init_depth(struct cm_req_msg * req_msg,u8 init_depth)151 static inline void cm_req_set_init_depth(struct cm_req_msg *req_msg,
152 u8 init_depth)
153 {
154 req_msg->offset36 = cpu_to_be32(init_depth |
155 (be32_to_cpu(req_msg->offset36) &
156 0xFFFFFF00));
157 }
158
cm_req_get_remote_resp_timeout(struct cm_req_msg * req_msg)159 static inline u8 cm_req_get_remote_resp_timeout(struct cm_req_msg *req_msg)
160 {
161 return (u8) ((be32_to_cpu(req_msg->offset40) & 0xF8) >> 3);
162 }
163
cm_req_set_remote_resp_timeout(struct cm_req_msg * req_msg,u8 resp_timeout)164 static inline void cm_req_set_remote_resp_timeout(struct cm_req_msg *req_msg,
165 u8 resp_timeout)
166 {
167 req_msg->offset40 = cpu_to_be32((resp_timeout << 3) |
168 (be32_to_cpu(req_msg->offset40) &
169 0xFFFFFF07));
170 }
171
cm_req_get_qp_type(struct cm_req_msg * req_msg)172 static inline enum ib_qp_type cm_req_get_qp_type(struct cm_req_msg *req_msg)
173 {
174 u8 transport_type = (u8) (be32_to_cpu(req_msg->offset40) & 0x06) >> 1;
175 switch(transport_type) {
176 case 0: return IB_QPT_RC;
177 case 1: return IB_QPT_UC;
178 default: return 0;
179 }
180 }
181
cm_req_set_qp_type(struct cm_req_msg * req_msg,enum ib_qp_type qp_type)182 static inline void cm_req_set_qp_type(struct cm_req_msg *req_msg,
183 enum ib_qp_type qp_type)
184 {
185 switch(qp_type) {
186 case IB_QPT_UC:
187 req_msg->offset40 = cpu_to_be32((be32_to_cpu(
188 req_msg->offset40) &
189 0xFFFFFFF9) | 0x2);
190 break;
191 default:
192 req_msg->offset40 = cpu_to_be32(be32_to_cpu(
193 req_msg->offset40) &
194 0xFFFFFFF9);
195 }
196 }
197
cm_req_get_flow_ctrl(struct cm_req_msg * req_msg)198 static inline u8 cm_req_get_flow_ctrl(struct cm_req_msg *req_msg)
199 {
200 return be32_to_cpu(req_msg->offset40) & 0x1;
201 }
202
cm_req_set_flow_ctrl(struct cm_req_msg * req_msg,u8 flow_ctrl)203 static inline void cm_req_set_flow_ctrl(struct cm_req_msg *req_msg,
204 u8 flow_ctrl)
205 {
206 req_msg->offset40 = cpu_to_be32((flow_ctrl & 0x1) |
207 (be32_to_cpu(req_msg->offset40) &
208 0xFFFFFFFE));
209 }
210
cm_req_get_starting_psn(struct cm_req_msg * req_msg)211 static inline __be32 cm_req_get_starting_psn(struct cm_req_msg *req_msg)
212 {
213 return cpu_to_be32(be32_to_cpu(req_msg->offset44) >> 8);
214 }
215
cm_req_set_starting_psn(struct cm_req_msg * req_msg,__be32 starting_psn)216 static inline void cm_req_set_starting_psn(struct cm_req_msg *req_msg,
217 __be32 starting_psn)
218 {
219 req_msg->offset44 = cpu_to_be32((be32_to_cpu(starting_psn) << 8) |
220 (be32_to_cpu(req_msg->offset44) & 0x000000FF));
221 }
222
cm_req_get_local_resp_timeout(struct cm_req_msg * req_msg)223 static inline u8 cm_req_get_local_resp_timeout(struct cm_req_msg *req_msg)
224 {
225 return (u8) ((be32_to_cpu(req_msg->offset44) & 0xF8) >> 3);
226 }
227
cm_req_set_local_resp_timeout(struct cm_req_msg * req_msg,u8 resp_timeout)228 static inline void cm_req_set_local_resp_timeout(struct cm_req_msg *req_msg,
229 u8 resp_timeout)
230 {
231 req_msg->offset44 = cpu_to_be32((resp_timeout << 3) |
232 (be32_to_cpu(req_msg->offset44) & 0xFFFFFF07));
233 }
234
cm_req_get_retry_count(struct cm_req_msg * req_msg)235 static inline u8 cm_req_get_retry_count(struct cm_req_msg *req_msg)
236 {
237 return (u8) (be32_to_cpu(req_msg->offset44) & 0x7);
238 }
239
cm_req_set_retry_count(struct cm_req_msg * req_msg,u8 retry_count)240 static inline void cm_req_set_retry_count(struct cm_req_msg *req_msg,
241 u8 retry_count)
242 {
243 req_msg->offset44 = cpu_to_be32((retry_count & 0x7) |
244 (be32_to_cpu(req_msg->offset44) & 0xFFFFFFF8));
245 }
246
cm_req_get_path_mtu(struct cm_req_msg * req_msg)247 static inline u8 cm_req_get_path_mtu(struct cm_req_msg *req_msg)
248 {
249 return req_msg->offset50 >> 4;
250 }
251
cm_req_set_path_mtu(struct cm_req_msg * req_msg,u8 path_mtu)252 static inline void cm_req_set_path_mtu(struct cm_req_msg *req_msg, u8 path_mtu)
253 {
254 req_msg->offset50 = (u8) ((req_msg->offset50 & 0xF) | (path_mtu << 4));
255 }
256
cm_req_get_rnr_retry_count(struct cm_req_msg * req_msg)257 static inline u8 cm_req_get_rnr_retry_count(struct cm_req_msg *req_msg)
258 {
259 return req_msg->offset50 & 0x7;
260 }
261
cm_req_set_rnr_retry_count(struct cm_req_msg * req_msg,u8 rnr_retry_count)262 static inline void cm_req_set_rnr_retry_count(struct cm_req_msg *req_msg,
263 u8 rnr_retry_count)
264 {
265 req_msg->offset50 = (u8) ((req_msg->offset50 & 0xF8) |
266 (rnr_retry_count & 0x7));
267 }
268
cm_req_get_max_cm_retries(struct cm_req_msg * req_msg)269 static inline u8 cm_req_get_max_cm_retries(struct cm_req_msg *req_msg)
270 {
271 return req_msg->offset51 >> 4;
272 }
273
cm_req_set_max_cm_retries(struct cm_req_msg * req_msg,u8 retries)274 static inline void cm_req_set_max_cm_retries(struct cm_req_msg *req_msg,
275 u8 retries)
276 {
277 req_msg->offset51 = (u8) ((req_msg->offset51 & 0xF) | (retries << 4));
278 }
279
cm_req_get_srq(struct cm_req_msg * req_msg)280 static inline u8 cm_req_get_srq(struct cm_req_msg *req_msg)
281 {
282 return (req_msg->offset51 & 0x8) >> 3;
283 }
284
cm_req_set_srq(struct cm_req_msg * req_msg,u8 srq)285 static inline void cm_req_set_srq(struct cm_req_msg *req_msg, u8 srq)
286 {
287 req_msg->offset51 = (u8) ((req_msg->offset51 & 0xF7) |
288 ((srq & 0x1) << 3));
289 }
290
cm_req_get_primary_flow_label(struct cm_req_msg * req_msg)291 static inline __be32 cm_req_get_primary_flow_label(struct cm_req_msg *req_msg)
292 {
293 return cpu_to_be32(be32_to_cpu(req_msg->primary_offset88) >> 12);
294 }
295
cm_req_set_primary_flow_label(struct cm_req_msg * req_msg,__be32 flow_label)296 static inline void cm_req_set_primary_flow_label(struct cm_req_msg *req_msg,
297 __be32 flow_label)
298 {
299 req_msg->primary_offset88 = cpu_to_be32(
300 (be32_to_cpu(req_msg->primary_offset88) &
301 0x00000FFF) |
302 (be32_to_cpu(flow_label) << 12));
303 }
304
cm_req_get_primary_packet_rate(struct cm_req_msg * req_msg)305 static inline u8 cm_req_get_primary_packet_rate(struct cm_req_msg *req_msg)
306 {
307 return (u8) (be32_to_cpu(req_msg->primary_offset88) & 0x3F);
308 }
309
cm_req_set_primary_packet_rate(struct cm_req_msg * req_msg,u8 rate)310 static inline void cm_req_set_primary_packet_rate(struct cm_req_msg *req_msg,
311 u8 rate)
312 {
313 req_msg->primary_offset88 = cpu_to_be32(
314 (be32_to_cpu(req_msg->primary_offset88) &
315 0xFFFFFFC0) | (rate & 0x3F));
316 }
317
cm_req_get_primary_sl(struct cm_req_msg * req_msg)318 static inline u8 cm_req_get_primary_sl(struct cm_req_msg *req_msg)
319 {
320 return (u8) (req_msg->primary_offset94 >> 4);
321 }
322
cm_req_set_primary_sl(struct cm_req_msg * req_msg,u8 sl)323 static inline void cm_req_set_primary_sl(struct cm_req_msg *req_msg, u8 sl)
324 {
325 req_msg->primary_offset94 = (u8) ((req_msg->primary_offset94 & 0x0F) |
326 (sl << 4));
327 }
328
cm_req_get_primary_subnet_local(struct cm_req_msg * req_msg)329 static inline u8 cm_req_get_primary_subnet_local(struct cm_req_msg *req_msg)
330 {
331 return (u8) ((req_msg->primary_offset94 & 0x08) >> 3);
332 }
333
cm_req_set_primary_subnet_local(struct cm_req_msg * req_msg,u8 subnet_local)334 static inline void cm_req_set_primary_subnet_local(struct cm_req_msg *req_msg,
335 u8 subnet_local)
336 {
337 req_msg->primary_offset94 = (u8) ((req_msg->primary_offset94 & 0xF7) |
338 ((subnet_local & 0x1) << 3));
339 }
340
cm_req_get_primary_local_ack_timeout(struct cm_req_msg * req_msg)341 static inline u8 cm_req_get_primary_local_ack_timeout(struct cm_req_msg *req_msg)
342 {
343 return (u8) (req_msg->primary_offset95 >> 3);
344 }
345
cm_req_set_primary_local_ack_timeout(struct cm_req_msg * req_msg,u8 local_ack_timeout)346 static inline void cm_req_set_primary_local_ack_timeout(struct cm_req_msg *req_msg,
347 u8 local_ack_timeout)
348 {
349 req_msg->primary_offset95 = (u8) ((req_msg->primary_offset95 & 0x07) |
350 (local_ack_timeout << 3));
351 }
352
cm_req_get_alt_flow_label(struct cm_req_msg * req_msg)353 static inline __be32 cm_req_get_alt_flow_label(struct cm_req_msg *req_msg)
354 {
355 return cpu_to_be32(be32_to_cpu(req_msg->alt_offset132) >> 12);
356 }
357
cm_req_set_alt_flow_label(struct cm_req_msg * req_msg,__be32 flow_label)358 static inline void cm_req_set_alt_flow_label(struct cm_req_msg *req_msg,
359 __be32 flow_label)
360 {
361 req_msg->alt_offset132 = cpu_to_be32(
362 (be32_to_cpu(req_msg->alt_offset132) &
363 0x00000FFF) |
364 (be32_to_cpu(flow_label) << 12));
365 }
366
cm_req_get_alt_packet_rate(struct cm_req_msg * req_msg)367 static inline u8 cm_req_get_alt_packet_rate(struct cm_req_msg *req_msg)
368 {
369 return (u8) (be32_to_cpu(req_msg->alt_offset132) & 0x3F);
370 }
371
cm_req_set_alt_packet_rate(struct cm_req_msg * req_msg,u8 rate)372 static inline void cm_req_set_alt_packet_rate(struct cm_req_msg *req_msg,
373 u8 rate)
374 {
375 req_msg->alt_offset132 = cpu_to_be32(
376 (be32_to_cpu(req_msg->alt_offset132) &
377 0xFFFFFFC0) | (rate & 0x3F));
378 }
379
cm_req_get_alt_sl(struct cm_req_msg * req_msg)380 static inline u8 cm_req_get_alt_sl(struct cm_req_msg *req_msg)
381 {
382 return (u8) (req_msg->alt_offset138 >> 4);
383 }
384
cm_req_set_alt_sl(struct cm_req_msg * req_msg,u8 sl)385 static inline void cm_req_set_alt_sl(struct cm_req_msg *req_msg, u8 sl)
386 {
387 req_msg->alt_offset138 = (u8) ((req_msg->alt_offset138 & 0x0F) |
388 (sl << 4));
389 }
390
cm_req_get_alt_subnet_local(struct cm_req_msg * req_msg)391 static inline u8 cm_req_get_alt_subnet_local(struct cm_req_msg *req_msg)
392 {
393 return (u8) ((req_msg->alt_offset138 & 0x08) >> 3);
394 }
395
cm_req_set_alt_subnet_local(struct cm_req_msg * req_msg,u8 subnet_local)396 static inline void cm_req_set_alt_subnet_local(struct cm_req_msg *req_msg,
397 u8 subnet_local)
398 {
399 req_msg->alt_offset138 = (u8) ((req_msg->alt_offset138 & 0xF7) |
400 ((subnet_local & 0x1) << 3));
401 }
402
cm_req_get_alt_local_ack_timeout(struct cm_req_msg * req_msg)403 static inline u8 cm_req_get_alt_local_ack_timeout(struct cm_req_msg *req_msg)
404 {
405 return (u8) (req_msg->alt_offset139 >> 3);
406 }
407
cm_req_set_alt_local_ack_timeout(struct cm_req_msg * req_msg,u8 local_ack_timeout)408 static inline void cm_req_set_alt_local_ack_timeout(struct cm_req_msg *req_msg,
409 u8 local_ack_timeout)
410 {
411 req_msg->alt_offset139 = (u8) ((req_msg->alt_offset139 & 0x07) |
412 (local_ack_timeout << 3));
413 }
414
415 /* Message REJected or MRAed */
416 enum cm_msg_response {
417 CM_MSG_RESPONSE_REQ = 0x0,
418 CM_MSG_RESPONSE_REP = 0x1,
419 CM_MSG_RESPONSE_OTHER = 0x2
420 };
421
422 struct cm_mra_msg {
423 struct ib_mad_hdr hdr;
424
425 __be32 local_comm_id;
426 __be32 remote_comm_id;
427 /* message MRAed:2, rsvd:6 */
428 u8 offset8;
429 /* service timeout:5, rsvd:3 */
430 u8 offset9;
431
432 u8 private_data[IB_CM_MRA_PRIVATE_DATA_SIZE];
433
434 } __attribute__ ((packed));
435
cm_mra_get_msg_mraed(struct cm_mra_msg * mra_msg)436 static inline u8 cm_mra_get_msg_mraed(struct cm_mra_msg *mra_msg)
437 {
438 return (u8) (mra_msg->offset8 >> 6);
439 }
440
cm_mra_set_msg_mraed(struct cm_mra_msg * mra_msg,u8 msg)441 static inline void cm_mra_set_msg_mraed(struct cm_mra_msg *mra_msg, u8 msg)
442 {
443 mra_msg->offset8 = (u8) ((mra_msg->offset8 & 0x3F) | (msg << 6));
444 }
445
cm_mra_get_service_timeout(struct cm_mra_msg * mra_msg)446 static inline u8 cm_mra_get_service_timeout(struct cm_mra_msg *mra_msg)
447 {
448 return (u8) (mra_msg->offset9 >> 3);
449 }
450
cm_mra_set_service_timeout(struct cm_mra_msg * mra_msg,u8 service_timeout)451 static inline void cm_mra_set_service_timeout(struct cm_mra_msg *mra_msg,
452 u8 service_timeout)
453 {
454 mra_msg->offset9 = (u8) ((mra_msg->offset9 & 0x07) |
455 (service_timeout << 3));
456 }
457
458 struct cm_rej_msg {
459 struct ib_mad_hdr hdr;
460
461 __be32 local_comm_id;
462 __be32 remote_comm_id;
463 /* message REJected:2, rsvd:6 */
464 u8 offset8;
465 /* reject info length:7, rsvd:1. */
466 u8 offset9;
467 __be16 reason;
468 u8 ari[IB_CM_REJ_ARI_LENGTH];
469
470 u8 private_data[IB_CM_REJ_PRIVATE_DATA_SIZE];
471
472 } __attribute__ ((packed));
473
cm_rej_get_msg_rejected(struct cm_rej_msg * rej_msg)474 static inline u8 cm_rej_get_msg_rejected(struct cm_rej_msg *rej_msg)
475 {
476 return (u8) (rej_msg->offset8 >> 6);
477 }
478
cm_rej_set_msg_rejected(struct cm_rej_msg * rej_msg,u8 msg)479 static inline void cm_rej_set_msg_rejected(struct cm_rej_msg *rej_msg, u8 msg)
480 {
481 rej_msg->offset8 = (u8) ((rej_msg->offset8 & 0x3F) | (msg << 6));
482 }
483
cm_rej_get_reject_info_len(struct cm_rej_msg * rej_msg)484 static inline u8 cm_rej_get_reject_info_len(struct cm_rej_msg *rej_msg)
485 {
486 return (u8) (rej_msg->offset9 >> 1);
487 }
488
cm_rej_set_reject_info_len(struct cm_rej_msg * rej_msg,u8 len)489 static inline void cm_rej_set_reject_info_len(struct cm_rej_msg *rej_msg,
490 u8 len)
491 {
492 rej_msg->offset9 = (u8) ((rej_msg->offset9 & 0x1) | (len << 1));
493 }
494
495 struct cm_rep_msg {
496 struct ib_mad_hdr hdr;
497
498 __be32 local_comm_id;
499 __be32 remote_comm_id;
500 __be32 local_qkey;
501 /* local QPN:24, rsvd:8 */
502 __be32 offset12;
503 /* local EECN:24, rsvd:8 */
504 __be32 offset16;
505 /* starting PSN:24 rsvd:8 */
506 __be32 offset20;
507 u8 resp_resources;
508 u8 initiator_depth;
509 /* target ACK delay:5, failover accepted:2, end-to-end flow control:1 */
510 u8 offset26;
511 /* RNR retry count:3, SRQ:1, rsvd:5 */
512 u8 offset27;
513 __be64 local_ca_guid;
514
515 u8 private_data[IB_CM_REP_PRIVATE_DATA_SIZE];
516
517 } __attribute__ ((packed));
518
cm_rep_get_local_qpn(struct cm_rep_msg * rep_msg)519 static inline __be32 cm_rep_get_local_qpn(struct cm_rep_msg *rep_msg)
520 {
521 return cpu_to_be32(be32_to_cpu(rep_msg->offset12) >> 8);
522 }
523
cm_rep_set_local_qpn(struct cm_rep_msg * rep_msg,__be32 qpn)524 static inline void cm_rep_set_local_qpn(struct cm_rep_msg *rep_msg, __be32 qpn)
525 {
526 rep_msg->offset12 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
527 (be32_to_cpu(rep_msg->offset12) & 0x000000FF));
528 }
529
cm_rep_get_starting_psn(struct cm_rep_msg * rep_msg)530 static inline __be32 cm_rep_get_starting_psn(struct cm_rep_msg *rep_msg)
531 {
532 return cpu_to_be32(be32_to_cpu(rep_msg->offset20) >> 8);
533 }
534
cm_rep_set_starting_psn(struct cm_rep_msg * rep_msg,__be32 starting_psn)535 static inline void cm_rep_set_starting_psn(struct cm_rep_msg *rep_msg,
536 __be32 starting_psn)
537 {
538 rep_msg->offset20 = cpu_to_be32((be32_to_cpu(starting_psn) << 8) |
539 (be32_to_cpu(rep_msg->offset20) & 0x000000FF));
540 }
541
cm_rep_get_target_ack_delay(struct cm_rep_msg * rep_msg)542 static inline u8 cm_rep_get_target_ack_delay(struct cm_rep_msg *rep_msg)
543 {
544 return (u8) (rep_msg->offset26 >> 3);
545 }
546
cm_rep_set_target_ack_delay(struct cm_rep_msg * rep_msg,u8 target_ack_delay)547 static inline void cm_rep_set_target_ack_delay(struct cm_rep_msg *rep_msg,
548 u8 target_ack_delay)
549 {
550 rep_msg->offset26 = (u8) ((rep_msg->offset26 & 0x07) |
551 (target_ack_delay << 3));
552 }
553
cm_rep_get_failover(struct cm_rep_msg * rep_msg)554 static inline u8 cm_rep_get_failover(struct cm_rep_msg *rep_msg)
555 {
556 return (u8) ((rep_msg->offset26 & 0x06) >> 1);
557 }
558
cm_rep_set_failover(struct cm_rep_msg * rep_msg,u8 failover)559 static inline void cm_rep_set_failover(struct cm_rep_msg *rep_msg, u8 failover)
560 {
561 rep_msg->offset26 = (u8) ((rep_msg->offset26 & 0xF9) |
562 ((failover & 0x3) << 1));
563 }
564
cm_rep_get_flow_ctrl(struct cm_rep_msg * rep_msg)565 static inline u8 cm_rep_get_flow_ctrl(struct cm_rep_msg *rep_msg)
566 {
567 return (u8) (rep_msg->offset26 & 0x01);
568 }
569
cm_rep_set_flow_ctrl(struct cm_rep_msg * rep_msg,u8 flow_ctrl)570 static inline void cm_rep_set_flow_ctrl(struct cm_rep_msg *rep_msg,
571 u8 flow_ctrl)
572 {
573 rep_msg->offset26 = (u8) ((rep_msg->offset26 & 0xFE) |
574 (flow_ctrl & 0x1));
575 }
576
cm_rep_get_rnr_retry_count(struct cm_rep_msg * rep_msg)577 static inline u8 cm_rep_get_rnr_retry_count(struct cm_rep_msg *rep_msg)
578 {
579 return (u8) (rep_msg->offset27 >> 5);
580 }
581
cm_rep_set_rnr_retry_count(struct cm_rep_msg * rep_msg,u8 rnr_retry_count)582 static inline void cm_rep_set_rnr_retry_count(struct cm_rep_msg *rep_msg,
583 u8 rnr_retry_count)
584 {
585 rep_msg->offset27 = (u8) ((rep_msg->offset27 & 0x1F) |
586 (rnr_retry_count << 5));
587 }
588
cm_rep_get_srq(struct cm_rep_msg * rep_msg)589 static inline u8 cm_rep_get_srq(struct cm_rep_msg *rep_msg)
590 {
591 return (u8) ((rep_msg->offset27 >> 4) & 0x1);
592 }
593
cm_rep_set_srq(struct cm_rep_msg * rep_msg,u8 srq)594 static inline void cm_rep_set_srq(struct cm_rep_msg *rep_msg, u8 srq)
595 {
596 rep_msg->offset27 = (u8) ((rep_msg->offset27 & 0xEF) |
597 ((srq & 0x1) << 4));
598 }
599
600 struct cm_rtu_msg {
601 struct ib_mad_hdr hdr;
602
603 __be32 local_comm_id;
604 __be32 remote_comm_id;
605
606 u8 private_data[IB_CM_RTU_PRIVATE_DATA_SIZE];
607
608 } __attribute__ ((packed));
609
610 struct cm_dreq_msg {
611 struct ib_mad_hdr hdr;
612
613 __be32 local_comm_id;
614 __be32 remote_comm_id;
615 /* remote QPN/EECN:24, rsvd:8 */
616 __be32 offset8;
617
618 u8 private_data[IB_CM_DREQ_PRIVATE_DATA_SIZE];
619
620 } __attribute__ ((packed));
621
cm_dreq_get_remote_qpn(struct cm_dreq_msg * dreq_msg)622 static inline __be32 cm_dreq_get_remote_qpn(struct cm_dreq_msg *dreq_msg)
623 {
624 return cpu_to_be32(be32_to_cpu(dreq_msg->offset8) >> 8);
625 }
626
cm_dreq_set_remote_qpn(struct cm_dreq_msg * dreq_msg,__be32 qpn)627 static inline void cm_dreq_set_remote_qpn(struct cm_dreq_msg *dreq_msg, __be32 qpn)
628 {
629 dreq_msg->offset8 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
630 (be32_to_cpu(dreq_msg->offset8) & 0x000000FF));
631 }
632
633 struct cm_drep_msg {
634 struct ib_mad_hdr hdr;
635
636 __be32 local_comm_id;
637 __be32 remote_comm_id;
638
639 u8 private_data[IB_CM_DREP_PRIVATE_DATA_SIZE];
640
641 } __attribute__ ((packed));
642
643 struct cm_lap_msg {
644 struct ib_mad_hdr hdr;
645
646 __be32 local_comm_id;
647 __be32 remote_comm_id;
648
649 __be32 rsvd8;
650 /* remote QPN/EECN:24, remote CM response timeout:5, rsvd:3 */
651 __be32 offset12;
652 __be32 rsvd16;
653
654 __be16 alt_local_lid;
655 __be16 alt_remote_lid;
656 union ib_gid alt_local_gid;
657 union ib_gid alt_remote_gid;
658 /* flow label:20, rsvd:4, traffic class:8 */
659 __be32 offset56;
660 u8 alt_hop_limit;
661 /* rsvd:2, packet rate:6 */
662 u8 offset61;
663 /* SL:4, subnet local:1, rsvd:3 */
664 u8 offset62;
665 /* local ACK timeout:5, rsvd:3 */
666 u8 offset63;
667
668 u8 private_data[IB_CM_LAP_PRIVATE_DATA_SIZE];
669 } __attribute__ ((packed));
670
cm_lap_get_remote_qpn(struct cm_lap_msg * lap_msg)671 static inline __be32 cm_lap_get_remote_qpn(struct cm_lap_msg *lap_msg)
672 {
673 return cpu_to_be32(be32_to_cpu(lap_msg->offset12) >> 8);
674 }
675
cm_lap_set_remote_qpn(struct cm_lap_msg * lap_msg,__be32 qpn)676 static inline void cm_lap_set_remote_qpn(struct cm_lap_msg *lap_msg, __be32 qpn)
677 {
678 lap_msg->offset12 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
679 (be32_to_cpu(lap_msg->offset12) &
680 0x000000FF));
681 }
682
cm_lap_get_remote_resp_timeout(struct cm_lap_msg * lap_msg)683 static inline u8 cm_lap_get_remote_resp_timeout(struct cm_lap_msg *lap_msg)
684 {
685 return (u8) ((be32_to_cpu(lap_msg->offset12) & 0xF8) >> 3);
686 }
687
cm_lap_set_remote_resp_timeout(struct cm_lap_msg * lap_msg,u8 resp_timeout)688 static inline void cm_lap_set_remote_resp_timeout(struct cm_lap_msg *lap_msg,
689 u8 resp_timeout)
690 {
691 lap_msg->offset12 = cpu_to_be32((resp_timeout << 3) |
692 (be32_to_cpu(lap_msg->offset12) &
693 0xFFFFFF07));
694 }
695
cm_lap_get_flow_label(struct cm_lap_msg * lap_msg)696 static inline __be32 cm_lap_get_flow_label(struct cm_lap_msg *lap_msg)
697 {
698 return cpu_to_be32(be32_to_cpu(lap_msg->offset56) >> 12);
699 }
700
cm_lap_set_flow_label(struct cm_lap_msg * lap_msg,__be32 flow_label)701 static inline void cm_lap_set_flow_label(struct cm_lap_msg *lap_msg,
702 __be32 flow_label)
703 {
704 lap_msg->offset56 = cpu_to_be32(
705 (be32_to_cpu(lap_msg->offset56) & 0x00000FFF) |
706 (be32_to_cpu(flow_label) << 12));
707 }
708
cm_lap_get_traffic_class(struct cm_lap_msg * lap_msg)709 static inline u8 cm_lap_get_traffic_class(struct cm_lap_msg *lap_msg)
710 {
711 return (u8) be32_to_cpu(lap_msg->offset56);
712 }
713
cm_lap_set_traffic_class(struct cm_lap_msg * lap_msg,u8 traffic_class)714 static inline void cm_lap_set_traffic_class(struct cm_lap_msg *lap_msg,
715 u8 traffic_class)
716 {
717 lap_msg->offset56 = cpu_to_be32(traffic_class |
718 (be32_to_cpu(lap_msg->offset56) &
719 0xFFFFFF00));
720 }
721
cm_lap_get_packet_rate(struct cm_lap_msg * lap_msg)722 static inline u8 cm_lap_get_packet_rate(struct cm_lap_msg *lap_msg)
723 {
724 return lap_msg->offset61 & 0x3F;
725 }
726
cm_lap_set_packet_rate(struct cm_lap_msg * lap_msg,u8 packet_rate)727 static inline void cm_lap_set_packet_rate(struct cm_lap_msg *lap_msg,
728 u8 packet_rate)
729 {
730 lap_msg->offset61 = (packet_rate & 0x3F) | (lap_msg->offset61 & 0xC0);
731 }
732
cm_lap_get_sl(struct cm_lap_msg * lap_msg)733 static inline u8 cm_lap_get_sl(struct cm_lap_msg *lap_msg)
734 {
735 return lap_msg->offset62 >> 4;
736 }
737
cm_lap_set_sl(struct cm_lap_msg * lap_msg,u8 sl)738 static inline void cm_lap_set_sl(struct cm_lap_msg *lap_msg, u8 sl)
739 {
740 lap_msg->offset62 = (sl << 4) | (lap_msg->offset62 & 0x0F);
741 }
742
cm_lap_get_subnet_local(struct cm_lap_msg * lap_msg)743 static inline u8 cm_lap_get_subnet_local(struct cm_lap_msg *lap_msg)
744 {
745 return (lap_msg->offset62 >> 3) & 0x1;
746 }
747
cm_lap_set_subnet_local(struct cm_lap_msg * lap_msg,u8 subnet_local)748 static inline void cm_lap_set_subnet_local(struct cm_lap_msg *lap_msg,
749 u8 subnet_local)
750 {
751 lap_msg->offset62 = ((subnet_local & 0x1) << 3) |
752 (lap_msg->offset61 & 0xF7);
753 }
cm_lap_get_local_ack_timeout(struct cm_lap_msg * lap_msg)754 static inline u8 cm_lap_get_local_ack_timeout(struct cm_lap_msg *lap_msg)
755 {
756 return lap_msg->offset63 >> 3;
757 }
758
cm_lap_set_local_ack_timeout(struct cm_lap_msg * lap_msg,u8 local_ack_timeout)759 static inline void cm_lap_set_local_ack_timeout(struct cm_lap_msg *lap_msg,
760 u8 local_ack_timeout)
761 {
762 lap_msg->offset63 = (local_ack_timeout << 3) |
763 (lap_msg->offset63 & 0x07);
764 }
765
766 struct cm_apr_msg {
767 struct ib_mad_hdr hdr;
768
769 __be32 local_comm_id;
770 __be32 remote_comm_id;
771
772 u8 info_length;
773 u8 ap_status;
774 u8 info[IB_CM_APR_INFO_LENGTH];
775
776 u8 private_data[IB_CM_APR_PRIVATE_DATA_SIZE];
777 } __attribute__ ((packed));
778
779 struct cm_sidr_req_msg {
780 struct ib_mad_hdr hdr;
781
782 __be32 request_id;
783 __be16 pkey;
784 __be16 rsvd;
785 __be64 service_id;
786
787 u8 private_data[IB_CM_SIDR_REQ_PRIVATE_DATA_SIZE];
788 } __attribute__ ((packed));
789
790 struct cm_sidr_rep_msg {
791 struct ib_mad_hdr hdr;
792
793 __be32 request_id;
794 u8 status;
795 u8 info_length;
796 __be16 rsvd;
797 /* QPN:24, rsvd:8 */
798 __be32 offset8;
799 __be64 service_id;
800 __be32 qkey;
801 u8 info[IB_CM_SIDR_REP_INFO_LENGTH];
802
803 u8 private_data[IB_CM_SIDR_REP_PRIVATE_DATA_SIZE];
804 } __attribute__ ((packed));
805
cm_sidr_rep_get_qpn(struct cm_sidr_rep_msg * sidr_rep_msg)806 static inline __be32 cm_sidr_rep_get_qpn(struct cm_sidr_rep_msg *sidr_rep_msg)
807 {
808 return cpu_to_be32(be32_to_cpu(sidr_rep_msg->offset8) >> 8);
809 }
810
cm_sidr_rep_set_qpn(struct cm_sidr_rep_msg * sidr_rep_msg,__be32 qpn)811 static inline void cm_sidr_rep_set_qpn(struct cm_sidr_rep_msg *sidr_rep_msg,
812 __be32 qpn)
813 {
814 sidr_rep_msg->offset8 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
815 (be32_to_cpu(sidr_rep_msg->offset8) &
816 0x000000FF));
817 }
818
819 #endif /* CM_MSGS_H */
820