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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
59enum 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
66struct 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
122static 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
127static 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
134static 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
139static 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
146static 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
151static 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
159static 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
164static 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
172static 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
182static 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
198static 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
203static 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
211static 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
216static 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
223static 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
228static 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
235static 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
240static 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
247static inline u8 cm_req_get_path_mtu(struct cm_req_msg *req_msg)
248{
249 return req_msg->offset50 >> 4;
250}
251
252static 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
257static inline u8 cm_req_get_rnr_retry_count(struct cm_req_msg *req_msg)
258{
259 return req_msg->offset50 & 0x7;
260}
261
262static 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
269static inline u8 cm_req_get_max_cm_retries(struct cm_req_msg *req_msg)
270{
271 return req_msg->offset51 >> 4;
272}
273
274static 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
280static inline u8 cm_req_get_srq(struct cm_req_msg *req_msg)
281{
282 return (req_msg->offset51 & 0x8) >> 3;
283}
284
285static 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
291static 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
296static 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
305static 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
310static 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
318static inline u8 cm_req_get_primary_sl(struct cm_req_msg *req_msg)
319{
320 return (u8) (req_msg->primary_offset94 >> 4);
321}
322
323static 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
329static 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
334static 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
341static 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
346static 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
353static 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
358static 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
367static 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
372static 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
380static inline u8 cm_req_get_alt_sl(struct cm_req_msg *req_msg)
381{
382 return (u8) (req_msg->alt_offset138 >> 4);
383}
384
385static 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
391static 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
396static 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
403static 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
408static 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 */
416enum 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
436static inline u8 cm_mra_get_msg_mraed(struct cm_mra_msg *mra_msg)
437{
438 return (u8) (mra_msg->offset8 >> 6);
439}
440
441static 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
446static inline u8 cm_mra_get_service_timeout(struct cm_mra_msg *mra_msg)
447{
448 return (u8) (mra_msg->offset9 >> 3);
449}
450
451static 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
458struct 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
474static inline u8 cm_rej_get_msg_rejected(struct cm_rej_msg *rej_msg)
475{
476 return (u8) (rej_msg->offset8 >> 6);
477}
478
479static 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
484static inline u8 cm_rej_get_reject_info_len(struct cm_rej_msg *rej_msg)
485{
486 return (u8) (rej_msg->offset9 >> 1);
487}
488
489static 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
495struct 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
519static 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
524static 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
530static 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
535static 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
542static inline u8 cm_rep_get_target_ack_delay(struct cm_rep_msg *rep_msg)
543{
544 return (u8) (rep_msg->offset26 >> 3);
545}
546
547static 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
554static inline u8 cm_rep_get_failover(struct cm_rep_msg *rep_msg)
555{
556 return (u8) ((rep_msg->offset26 & 0x06) >> 1);
557}
558
559static 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
565static inline u8 cm_rep_get_flow_ctrl(struct cm_rep_msg *rep_msg)
566{
567 return (u8) (rep_msg->offset26 & 0x01);
568}
569
570static 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
577static inline u8 cm_rep_get_rnr_retry_count(struct cm_rep_msg *rep_msg)
578{
579 return (u8) (rep_msg->offset27 >> 5);
580}
581
582static 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
589static inline u8 cm_rep_get_srq(struct cm_rep_msg *rep_msg)
590{
591 return (u8) ((rep_msg->offset27 >> 4) & 0x1);
592}
593
594static 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
600struct 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
610struct 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
622static 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
627static 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
633struct 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
643struct 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
671static 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
676static 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
683static 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
688static 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
696static 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
701static 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
709static 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
714static 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
722static inline u8 cm_lap_get_packet_rate(struct cm_lap_msg *lap_msg)
723{
724 return lap_msg->offset61 & 0x3F;
725}
726
727static 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
733static inline u8 cm_lap_get_sl(struct cm_lap_msg *lap_msg)
734{
735 return lap_msg->offset62 >> 4;
736}
737
738static 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
743static inline u8 cm_lap_get_subnet_local(struct cm_lap_msg *lap_msg)
744{
745 return (lap_msg->offset62 >> 3) & 0x1;
746}
747
748static 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}
754static inline u8 cm_lap_get_local_ack_timeout(struct cm_lap_msg *lap_msg)
755{
756 return lap_msg->offset63 >> 3;
757}
758
759static 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
766struct 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
779struct 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
790struct 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
806static 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
811static 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 */
1/*
2 * Copyright (c) 2004, 2011 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
47enum cm_msg_sequence {
48 CM_MSG_SEQUENCE_REQ,
49 CM_MSG_SEQUENCE_LAP,
50 CM_MSG_SEQUENCE_DREQ,
51 CM_MSG_SEQUENCE_SIDR
52};
53
54struct cm_req_msg {
55 struct ib_mad_hdr hdr;
56
57 __be32 local_comm_id;
58 __be32 rsvd4;
59 __be64 service_id;
60 __be64 local_ca_guid;
61 __be32 rsvd24;
62 __be32 local_qkey;
63 /* local QPN:24, responder resources:8 */
64 __be32 offset32;
65 /* local EECN:24, initiator depth:8 */
66 __be32 offset36;
67 /*
68 * remote EECN:24, remote CM response timeout:5,
69 * transport service type:2, end-to-end flow control:1
70 */
71 __be32 offset40;
72 /* starting PSN:24, local CM response timeout:5, retry count:3 */
73 __be32 offset44;
74 __be16 pkey;
75 /* path MTU:4, RDC exists:1, RNR retry count:3. */
76 u8 offset50;
77 /* max CM Retries:4, SRQ:1, extended transport type:3 */
78 u8 offset51;
79
80 __be16 primary_local_lid;
81 __be16 primary_remote_lid;
82 union ib_gid primary_local_gid;
83 union ib_gid primary_remote_gid;
84 /* flow label:20, rsvd:6, packet rate:6 */
85 __be32 primary_offset88;
86 u8 primary_traffic_class;
87 u8 primary_hop_limit;
88 /* SL:4, subnet local:1, rsvd:3 */
89 u8 primary_offset94;
90 /* local ACK timeout:5, rsvd:3 */
91 u8 primary_offset95;
92
93 __be16 alt_local_lid;
94 __be16 alt_remote_lid;
95 union ib_gid alt_local_gid;
96 union ib_gid alt_remote_gid;
97 /* flow label:20, rsvd:6, packet rate:6 */
98 __be32 alt_offset132;
99 u8 alt_traffic_class;
100 u8 alt_hop_limit;
101 /* SL:4, subnet local:1, rsvd:3 */
102 u8 alt_offset138;
103 /* local ACK timeout:5, rsvd:3 */
104 u8 alt_offset139;
105
106 u8 private_data[IB_CM_REQ_PRIVATE_DATA_SIZE];
107
108} __attribute__ ((packed));
109
110static inline __be32 cm_req_get_local_qpn(struct cm_req_msg *req_msg)
111{
112 return cpu_to_be32(be32_to_cpu(req_msg->offset32) >> 8);
113}
114
115static inline void cm_req_set_local_qpn(struct cm_req_msg *req_msg, __be32 qpn)
116{
117 req_msg->offset32 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
118 (be32_to_cpu(req_msg->offset32) &
119 0x000000FF));
120}
121
122static inline u8 cm_req_get_resp_res(struct cm_req_msg *req_msg)
123{
124 return (u8) be32_to_cpu(req_msg->offset32);
125}
126
127static inline void cm_req_set_resp_res(struct cm_req_msg *req_msg, u8 resp_res)
128{
129 req_msg->offset32 = cpu_to_be32(resp_res |
130 (be32_to_cpu(req_msg->offset32) &
131 0xFFFFFF00));
132}
133
134static inline u8 cm_req_get_init_depth(struct cm_req_msg *req_msg)
135{
136 return (u8) be32_to_cpu(req_msg->offset36);
137}
138
139static inline void cm_req_set_init_depth(struct cm_req_msg *req_msg,
140 u8 init_depth)
141{
142 req_msg->offset36 = cpu_to_be32(init_depth |
143 (be32_to_cpu(req_msg->offset36) &
144 0xFFFFFF00));
145}
146
147static inline u8 cm_req_get_remote_resp_timeout(struct cm_req_msg *req_msg)
148{
149 return (u8) ((be32_to_cpu(req_msg->offset40) & 0xF8) >> 3);
150}
151
152static inline void cm_req_set_remote_resp_timeout(struct cm_req_msg *req_msg,
153 u8 resp_timeout)
154{
155 req_msg->offset40 = cpu_to_be32((resp_timeout << 3) |
156 (be32_to_cpu(req_msg->offset40) &
157 0xFFFFFF07));
158}
159
160static inline enum ib_qp_type cm_req_get_qp_type(struct cm_req_msg *req_msg)
161{
162 u8 transport_type = (u8) (be32_to_cpu(req_msg->offset40) & 0x06) >> 1;
163 switch(transport_type) {
164 case 0: return IB_QPT_RC;
165 case 1: return IB_QPT_UC;
166 case 3:
167 switch (req_msg->offset51 & 0x7) {
168 case 1: return IB_QPT_XRC_TGT;
169 default: return 0;
170 }
171 default: return 0;
172 }
173}
174
175static inline void cm_req_set_qp_type(struct cm_req_msg *req_msg,
176 enum ib_qp_type qp_type)
177{
178 switch(qp_type) {
179 case IB_QPT_UC:
180 req_msg->offset40 = cpu_to_be32((be32_to_cpu(
181 req_msg->offset40) &
182 0xFFFFFFF9) | 0x2);
183 break;
184 case IB_QPT_XRC_INI:
185 req_msg->offset40 = cpu_to_be32((be32_to_cpu(
186 req_msg->offset40) &
187 0xFFFFFFF9) | 0x6);
188 req_msg->offset51 = (req_msg->offset51 & 0xF8) | 1;
189 break;
190 default:
191 req_msg->offset40 = cpu_to_be32(be32_to_cpu(
192 req_msg->offset40) &
193 0xFFFFFFF9);
194 }
195}
196
197static inline u8 cm_req_get_flow_ctrl(struct cm_req_msg *req_msg)
198{
199 return be32_to_cpu(req_msg->offset40) & 0x1;
200}
201
202static inline void cm_req_set_flow_ctrl(struct cm_req_msg *req_msg,
203 u8 flow_ctrl)
204{
205 req_msg->offset40 = cpu_to_be32((flow_ctrl & 0x1) |
206 (be32_to_cpu(req_msg->offset40) &
207 0xFFFFFFFE));
208}
209
210static inline __be32 cm_req_get_starting_psn(struct cm_req_msg *req_msg)
211{
212 return cpu_to_be32(be32_to_cpu(req_msg->offset44) >> 8);
213}
214
215static inline void cm_req_set_starting_psn(struct cm_req_msg *req_msg,
216 __be32 starting_psn)
217{
218 req_msg->offset44 = cpu_to_be32((be32_to_cpu(starting_psn) << 8) |
219 (be32_to_cpu(req_msg->offset44) & 0x000000FF));
220}
221
222static inline u8 cm_req_get_local_resp_timeout(struct cm_req_msg *req_msg)
223{
224 return (u8) ((be32_to_cpu(req_msg->offset44) & 0xF8) >> 3);
225}
226
227static inline void cm_req_set_local_resp_timeout(struct cm_req_msg *req_msg,
228 u8 resp_timeout)
229{
230 req_msg->offset44 = cpu_to_be32((resp_timeout << 3) |
231 (be32_to_cpu(req_msg->offset44) & 0xFFFFFF07));
232}
233
234static inline u8 cm_req_get_retry_count(struct cm_req_msg *req_msg)
235{
236 return (u8) (be32_to_cpu(req_msg->offset44) & 0x7);
237}
238
239static inline void cm_req_set_retry_count(struct cm_req_msg *req_msg,
240 u8 retry_count)
241{
242 req_msg->offset44 = cpu_to_be32((retry_count & 0x7) |
243 (be32_to_cpu(req_msg->offset44) & 0xFFFFFFF8));
244}
245
246static inline u8 cm_req_get_path_mtu(struct cm_req_msg *req_msg)
247{
248 return req_msg->offset50 >> 4;
249}
250
251static inline void cm_req_set_path_mtu(struct cm_req_msg *req_msg, u8 path_mtu)
252{
253 req_msg->offset50 = (u8) ((req_msg->offset50 & 0xF) | (path_mtu << 4));
254}
255
256static inline u8 cm_req_get_rnr_retry_count(struct cm_req_msg *req_msg)
257{
258 return req_msg->offset50 & 0x7;
259}
260
261static inline void cm_req_set_rnr_retry_count(struct cm_req_msg *req_msg,
262 u8 rnr_retry_count)
263{
264 req_msg->offset50 = (u8) ((req_msg->offset50 & 0xF8) |
265 (rnr_retry_count & 0x7));
266}
267
268static inline u8 cm_req_get_max_cm_retries(struct cm_req_msg *req_msg)
269{
270 return req_msg->offset51 >> 4;
271}
272
273static inline void cm_req_set_max_cm_retries(struct cm_req_msg *req_msg,
274 u8 retries)
275{
276 req_msg->offset51 = (u8) ((req_msg->offset51 & 0xF) | (retries << 4));
277}
278
279static inline u8 cm_req_get_srq(struct cm_req_msg *req_msg)
280{
281 return (req_msg->offset51 & 0x8) >> 3;
282}
283
284static inline void cm_req_set_srq(struct cm_req_msg *req_msg, u8 srq)
285{
286 req_msg->offset51 = (u8) ((req_msg->offset51 & 0xF7) |
287 ((srq & 0x1) << 3));
288}
289
290static inline __be32 cm_req_get_primary_flow_label(struct cm_req_msg *req_msg)
291{
292 return cpu_to_be32(be32_to_cpu(req_msg->primary_offset88) >> 12);
293}
294
295static inline void cm_req_set_primary_flow_label(struct cm_req_msg *req_msg,
296 __be32 flow_label)
297{
298 req_msg->primary_offset88 = cpu_to_be32(
299 (be32_to_cpu(req_msg->primary_offset88) &
300 0x00000FFF) |
301 (be32_to_cpu(flow_label) << 12));
302}
303
304static inline u8 cm_req_get_primary_packet_rate(struct cm_req_msg *req_msg)
305{
306 return (u8) (be32_to_cpu(req_msg->primary_offset88) & 0x3F);
307}
308
309static inline void cm_req_set_primary_packet_rate(struct cm_req_msg *req_msg,
310 u8 rate)
311{
312 req_msg->primary_offset88 = cpu_to_be32(
313 (be32_to_cpu(req_msg->primary_offset88) &
314 0xFFFFFFC0) | (rate & 0x3F));
315}
316
317static inline u8 cm_req_get_primary_sl(struct cm_req_msg *req_msg)
318{
319 return (u8) (req_msg->primary_offset94 >> 4);
320}
321
322static inline void cm_req_set_primary_sl(struct cm_req_msg *req_msg, u8 sl)
323{
324 req_msg->primary_offset94 = (u8) ((req_msg->primary_offset94 & 0x0F) |
325 (sl << 4));
326}
327
328static inline u8 cm_req_get_primary_subnet_local(struct cm_req_msg *req_msg)
329{
330 return (u8) ((req_msg->primary_offset94 & 0x08) >> 3);
331}
332
333static inline void cm_req_set_primary_subnet_local(struct cm_req_msg *req_msg,
334 u8 subnet_local)
335{
336 req_msg->primary_offset94 = (u8) ((req_msg->primary_offset94 & 0xF7) |
337 ((subnet_local & 0x1) << 3));
338}
339
340static inline u8 cm_req_get_primary_local_ack_timeout(struct cm_req_msg *req_msg)
341{
342 return (u8) (req_msg->primary_offset95 >> 3);
343}
344
345static inline void cm_req_set_primary_local_ack_timeout(struct cm_req_msg *req_msg,
346 u8 local_ack_timeout)
347{
348 req_msg->primary_offset95 = (u8) ((req_msg->primary_offset95 & 0x07) |
349 (local_ack_timeout << 3));
350}
351
352static inline __be32 cm_req_get_alt_flow_label(struct cm_req_msg *req_msg)
353{
354 return cpu_to_be32(be32_to_cpu(req_msg->alt_offset132) >> 12);
355}
356
357static inline void cm_req_set_alt_flow_label(struct cm_req_msg *req_msg,
358 __be32 flow_label)
359{
360 req_msg->alt_offset132 = cpu_to_be32(
361 (be32_to_cpu(req_msg->alt_offset132) &
362 0x00000FFF) |
363 (be32_to_cpu(flow_label) << 12));
364}
365
366static inline u8 cm_req_get_alt_packet_rate(struct cm_req_msg *req_msg)
367{
368 return (u8) (be32_to_cpu(req_msg->alt_offset132) & 0x3F);
369}
370
371static inline void cm_req_set_alt_packet_rate(struct cm_req_msg *req_msg,
372 u8 rate)
373{
374 req_msg->alt_offset132 = cpu_to_be32(
375 (be32_to_cpu(req_msg->alt_offset132) &
376 0xFFFFFFC0) | (rate & 0x3F));
377}
378
379static inline u8 cm_req_get_alt_sl(struct cm_req_msg *req_msg)
380{
381 return (u8) (req_msg->alt_offset138 >> 4);
382}
383
384static inline void cm_req_set_alt_sl(struct cm_req_msg *req_msg, u8 sl)
385{
386 req_msg->alt_offset138 = (u8) ((req_msg->alt_offset138 & 0x0F) |
387 (sl << 4));
388}
389
390static inline u8 cm_req_get_alt_subnet_local(struct cm_req_msg *req_msg)
391{
392 return (u8) ((req_msg->alt_offset138 & 0x08) >> 3);
393}
394
395static inline void cm_req_set_alt_subnet_local(struct cm_req_msg *req_msg,
396 u8 subnet_local)
397{
398 req_msg->alt_offset138 = (u8) ((req_msg->alt_offset138 & 0xF7) |
399 ((subnet_local & 0x1) << 3));
400}
401
402static inline u8 cm_req_get_alt_local_ack_timeout(struct cm_req_msg *req_msg)
403{
404 return (u8) (req_msg->alt_offset139 >> 3);
405}
406
407static inline void cm_req_set_alt_local_ack_timeout(struct cm_req_msg *req_msg,
408 u8 local_ack_timeout)
409{
410 req_msg->alt_offset139 = (u8) ((req_msg->alt_offset139 & 0x07) |
411 (local_ack_timeout << 3));
412}
413
414/* Message REJected or MRAed */
415enum cm_msg_response {
416 CM_MSG_RESPONSE_REQ = 0x0,
417 CM_MSG_RESPONSE_REP = 0x1,
418 CM_MSG_RESPONSE_OTHER = 0x2
419};
420
421 struct cm_mra_msg {
422 struct ib_mad_hdr hdr;
423
424 __be32 local_comm_id;
425 __be32 remote_comm_id;
426 /* message MRAed:2, rsvd:6 */
427 u8 offset8;
428 /* service timeout:5, rsvd:3 */
429 u8 offset9;
430
431 u8 private_data[IB_CM_MRA_PRIVATE_DATA_SIZE];
432
433} __attribute__ ((packed));
434
435static inline u8 cm_mra_get_msg_mraed(struct cm_mra_msg *mra_msg)
436{
437 return (u8) (mra_msg->offset8 >> 6);
438}
439
440static inline void cm_mra_set_msg_mraed(struct cm_mra_msg *mra_msg, u8 msg)
441{
442 mra_msg->offset8 = (u8) ((mra_msg->offset8 & 0x3F) | (msg << 6));
443}
444
445static inline u8 cm_mra_get_service_timeout(struct cm_mra_msg *mra_msg)
446{
447 return (u8) (mra_msg->offset9 >> 3);
448}
449
450static inline void cm_mra_set_service_timeout(struct cm_mra_msg *mra_msg,
451 u8 service_timeout)
452{
453 mra_msg->offset9 = (u8) ((mra_msg->offset9 & 0x07) |
454 (service_timeout << 3));
455}
456
457struct cm_rej_msg {
458 struct ib_mad_hdr hdr;
459
460 __be32 local_comm_id;
461 __be32 remote_comm_id;
462 /* message REJected:2, rsvd:6 */
463 u8 offset8;
464 /* reject info length:7, rsvd:1. */
465 u8 offset9;
466 __be16 reason;
467 u8 ari[IB_CM_REJ_ARI_LENGTH];
468
469 u8 private_data[IB_CM_REJ_PRIVATE_DATA_SIZE];
470
471} __attribute__ ((packed));
472
473static inline u8 cm_rej_get_msg_rejected(struct cm_rej_msg *rej_msg)
474{
475 return (u8) (rej_msg->offset8 >> 6);
476}
477
478static inline void cm_rej_set_msg_rejected(struct cm_rej_msg *rej_msg, u8 msg)
479{
480 rej_msg->offset8 = (u8) ((rej_msg->offset8 & 0x3F) | (msg << 6));
481}
482
483static inline u8 cm_rej_get_reject_info_len(struct cm_rej_msg *rej_msg)
484{
485 return (u8) (rej_msg->offset9 >> 1);
486}
487
488static inline void cm_rej_set_reject_info_len(struct cm_rej_msg *rej_msg,
489 u8 len)
490{
491 rej_msg->offset9 = (u8) ((rej_msg->offset9 & 0x1) | (len << 1));
492}
493
494struct cm_rep_msg {
495 struct ib_mad_hdr hdr;
496
497 __be32 local_comm_id;
498 __be32 remote_comm_id;
499 __be32 local_qkey;
500 /* local QPN:24, rsvd:8 */
501 __be32 offset12;
502 /* local EECN:24, rsvd:8 */
503 __be32 offset16;
504 /* starting PSN:24 rsvd:8 */
505 __be32 offset20;
506 u8 resp_resources;
507 u8 initiator_depth;
508 /* target ACK delay:5, failover accepted:2, end-to-end flow control:1 */
509 u8 offset26;
510 /* RNR retry count:3, SRQ:1, rsvd:5 */
511 u8 offset27;
512 __be64 local_ca_guid;
513
514 u8 private_data[IB_CM_REP_PRIVATE_DATA_SIZE];
515
516} __attribute__ ((packed));
517
518static inline __be32 cm_rep_get_local_qpn(struct cm_rep_msg *rep_msg)
519{
520 return cpu_to_be32(be32_to_cpu(rep_msg->offset12) >> 8);
521}
522
523static inline void cm_rep_set_local_qpn(struct cm_rep_msg *rep_msg, __be32 qpn)
524{
525 rep_msg->offset12 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
526 (be32_to_cpu(rep_msg->offset12) & 0x000000FF));
527}
528
529static inline __be32 cm_rep_get_local_eecn(struct cm_rep_msg *rep_msg)
530{
531 return cpu_to_be32(be32_to_cpu(rep_msg->offset16) >> 8);
532}
533
534static inline void cm_rep_set_local_eecn(struct cm_rep_msg *rep_msg, __be32 eecn)
535{
536 rep_msg->offset16 = cpu_to_be32((be32_to_cpu(eecn) << 8) |
537 (be32_to_cpu(rep_msg->offset16) & 0x000000FF));
538}
539
540static inline __be32 cm_rep_get_qpn(struct cm_rep_msg *rep_msg, enum ib_qp_type qp_type)
541{
542 return (qp_type == IB_QPT_XRC_INI) ?
543 cm_rep_get_local_eecn(rep_msg) : cm_rep_get_local_qpn(rep_msg);
544}
545
546static inline __be32 cm_rep_get_starting_psn(struct cm_rep_msg *rep_msg)
547{
548 return cpu_to_be32(be32_to_cpu(rep_msg->offset20) >> 8);
549}
550
551static inline void cm_rep_set_starting_psn(struct cm_rep_msg *rep_msg,
552 __be32 starting_psn)
553{
554 rep_msg->offset20 = cpu_to_be32((be32_to_cpu(starting_psn) << 8) |
555 (be32_to_cpu(rep_msg->offset20) & 0x000000FF));
556}
557
558static inline u8 cm_rep_get_target_ack_delay(struct cm_rep_msg *rep_msg)
559{
560 return (u8) (rep_msg->offset26 >> 3);
561}
562
563static inline void cm_rep_set_target_ack_delay(struct cm_rep_msg *rep_msg,
564 u8 target_ack_delay)
565{
566 rep_msg->offset26 = (u8) ((rep_msg->offset26 & 0x07) |
567 (target_ack_delay << 3));
568}
569
570static inline u8 cm_rep_get_failover(struct cm_rep_msg *rep_msg)
571{
572 return (u8) ((rep_msg->offset26 & 0x06) >> 1);
573}
574
575static inline void cm_rep_set_failover(struct cm_rep_msg *rep_msg, u8 failover)
576{
577 rep_msg->offset26 = (u8) ((rep_msg->offset26 & 0xF9) |
578 ((failover & 0x3) << 1));
579}
580
581static inline u8 cm_rep_get_flow_ctrl(struct cm_rep_msg *rep_msg)
582{
583 return (u8) (rep_msg->offset26 & 0x01);
584}
585
586static inline void cm_rep_set_flow_ctrl(struct cm_rep_msg *rep_msg,
587 u8 flow_ctrl)
588{
589 rep_msg->offset26 = (u8) ((rep_msg->offset26 & 0xFE) |
590 (flow_ctrl & 0x1));
591}
592
593static inline u8 cm_rep_get_rnr_retry_count(struct cm_rep_msg *rep_msg)
594{
595 return (u8) (rep_msg->offset27 >> 5);
596}
597
598static inline void cm_rep_set_rnr_retry_count(struct cm_rep_msg *rep_msg,
599 u8 rnr_retry_count)
600{
601 rep_msg->offset27 = (u8) ((rep_msg->offset27 & 0x1F) |
602 (rnr_retry_count << 5));
603}
604
605static inline u8 cm_rep_get_srq(struct cm_rep_msg *rep_msg)
606{
607 return (u8) ((rep_msg->offset27 >> 4) & 0x1);
608}
609
610static inline void cm_rep_set_srq(struct cm_rep_msg *rep_msg, u8 srq)
611{
612 rep_msg->offset27 = (u8) ((rep_msg->offset27 & 0xEF) |
613 ((srq & 0x1) << 4));
614}
615
616struct cm_rtu_msg {
617 struct ib_mad_hdr hdr;
618
619 __be32 local_comm_id;
620 __be32 remote_comm_id;
621
622 u8 private_data[IB_CM_RTU_PRIVATE_DATA_SIZE];
623
624} __attribute__ ((packed));
625
626struct cm_dreq_msg {
627 struct ib_mad_hdr hdr;
628
629 __be32 local_comm_id;
630 __be32 remote_comm_id;
631 /* remote QPN/EECN:24, rsvd:8 */
632 __be32 offset8;
633
634 u8 private_data[IB_CM_DREQ_PRIVATE_DATA_SIZE];
635
636} __attribute__ ((packed));
637
638static inline __be32 cm_dreq_get_remote_qpn(struct cm_dreq_msg *dreq_msg)
639{
640 return cpu_to_be32(be32_to_cpu(dreq_msg->offset8) >> 8);
641}
642
643static inline void cm_dreq_set_remote_qpn(struct cm_dreq_msg *dreq_msg, __be32 qpn)
644{
645 dreq_msg->offset8 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
646 (be32_to_cpu(dreq_msg->offset8) & 0x000000FF));
647}
648
649struct cm_drep_msg {
650 struct ib_mad_hdr hdr;
651
652 __be32 local_comm_id;
653 __be32 remote_comm_id;
654
655 u8 private_data[IB_CM_DREP_PRIVATE_DATA_SIZE];
656
657} __attribute__ ((packed));
658
659struct cm_lap_msg {
660 struct ib_mad_hdr hdr;
661
662 __be32 local_comm_id;
663 __be32 remote_comm_id;
664
665 __be32 rsvd8;
666 /* remote QPN/EECN:24, remote CM response timeout:5, rsvd:3 */
667 __be32 offset12;
668 __be32 rsvd16;
669
670 __be16 alt_local_lid;
671 __be16 alt_remote_lid;
672 union ib_gid alt_local_gid;
673 union ib_gid alt_remote_gid;
674 /* flow label:20, rsvd:4, traffic class:8 */
675 __be32 offset56;
676 u8 alt_hop_limit;
677 /* rsvd:2, packet rate:6 */
678 u8 offset61;
679 /* SL:4, subnet local:1, rsvd:3 */
680 u8 offset62;
681 /* local ACK timeout:5, rsvd:3 */
682 u8 offset63;
683
684 u8 private_data[IB_CM_LAP_PRIVATE_DATA_SIZE];
685} __attribute__ ((packed));
686
687static inline __be32 cm_lap_get_remote_qpn(struct cm_lap_msg *lap_msg)
688{
689 return cpu_to_be32(be32_to_cpu(lap_msg->offset12) >> 8);
690}
691
692static inline void cm_lap_set_remote_qpn(struct cm_lap_msg *lap_msg, __be32 qpn)
693{
694 lap_msg->offset12 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
695 (be32_to_cpu(lap_msg->offset12) &
696 0x000000FF));
697}
698
699static inline u8 cm_lap_get_remote_resp_timeout(struct cm_lap_msg *lap_msg)
700{
701 return (u8) ((be32_to_cpu(lap_msg->offset12) & 0xF8) >> 3);
702}
703
704static inline void cm_lap_set_remote_resp_timeout(struct cm_lap_msg *lap_msg,
705 u8 resp_timeout)
706{
707 lap_msg->offset12 = cpu_to_be32((resp_timeout << 3) |
708 (be32_to_cpu(lap_msg->offset12) &
709 0xFFFFFF07));
710}
711
712static inline __be32 cm_lap_get_flow_label(struct cm_lap_msg *lap_msg)
713{
714 return cpu_to_be32(be32_to_cpu(lap_msg->offset56) >> 12);
715}
716
717static inline void cm_lap_set_flow_label(struct cm_lap_msg *lap_msg,
718 __be32 flow_label)
719{
720 lap_msg->offset56 = cpu_to_be32(
721 (be32_to_cpu(lap_msg->offset56) & 0x00000FFF) |
722 (be32_to_cpu(flow_label) << 12));
723}
724
725static inline u8 cm_lap_get_traffic_class(struct cm_lap_msg *lap_msg)
726{
727 return (u8) be32_to_cpu(lap_msg->offset56);
728}
729
730static inline void cm_lap_set_traffic_class(struct cm_lap_msg *lap_msg,
731 u8 traffic_class)
732{
733 lap_msg->offset56 = cpu_to_be32(traffic_class |
734 (be32_to_cpu(lap_msg->offset56) &
735 0xFFFFFF00));
736}
737
738static inline u8 cm_lap_get_packet_rate(struct cm_lap_msg *lap_msg)
739{
740 return lap_msg->offset61 & 0x3F;
741}
742
743static inline void cm_lap_set_packet_rate(struct cm_lap_msg *lap_msg,
744 u8 packet_rate)
745{
746 lap_msg->offset61 = (packet_rate & 0x3F) | (lap_msg->offset61 & 0xC0);
747}
748
749static inline u8 cm_lap_get_sl(struct cm_lap_msg *lap_msg)
750{
751 return lap_msg->offset62 >> 4;
752}
753
754static inline void cm_lap_set_sl(struct cm_lap_msg *lap_msg, u8 sl)
755{
756 lap_msg->offset62 = (sl << 4) | (lap_msg->offset62 & 0x0F);
757}
758
759static inline u8 cm_lap_get_subnet_local(struct cm_lap_msg *lap_msg)
760{
761 return (lap_msg->offset62 >> 3) & 0x1;
762}
763
764static inline void cm_lap_set_subnet_local(struct cm_lap_msg *lap_msg,
765 u8 subnet_local)
766{
767 lap_msg->offset62 = ((subnet_local & 0x1) << 3) |
768 (lap_msg->offset61 & 0xF7);
769}
770static inline u8 cm_lap_get_local_ack_timeout(struct cm_lap_msg *lap_msg)
771{
772 return lap_msg->offset63 >> 3;
773}
774
775static inline void cm_lap_set_local_ack_timeout(struct cm_lap_msg *lap_msg,
776 u8 local_ack_timeout)
777{
778 lap_msg->offset63 = (local_ack_timeout << 3) |
779 (lap_msg->offset63 & 0x07);
780}
781
782struct cm_apr_msg {
783 struct ib_mad_hdr hdr;
784
785 __be32 local_comm_id;
786 __be32 remote_comm_id;
787
788 u8 info_length;
789 u8 ap_status;
790 __be16 rsvd;
791 u8 info[IB_CM_APR_INFO_LENGTH];
792
793 u8 private_data[IB_CM_APR_PRIVATE_DATA_SIZE];
794} __attribute__ ((packed));
795
796struct cm_sidr_req_msg {
797 struct ib_mad_hdr hdr;
798
799 __be32 request_id;
800 __be16 pkey;
801 __be16 rsvd;
802 __be64 service_id;
803
804 u8 private_data[IB_CM_SIDR_REQ_PRIVATE_DATA_SIZE];
805} __attribute__ ((packed));
806
807struct cm_sidr_rep_msg {
808 struct ib_mad_hdr hdr;
809
810 __be32 request_id;
811 u8 status;
812 u8 info_length;
813 __be16 rsvd;
814 /* QPN:24, rsvd:8 */
815 __be32 offset8;
816 __be64 service_id;
817 __be32 qkey;
818 u8 info[IB_CM_SIDR_REP_INFO_LENGTH];
819
820 u8 private_data[IB_CM_SIDR_REP_PRIVATE_DATA_SIZE];
821} __attribute__ ((packed));
822
823static inline __be32 cm_sidr_rep_get_qpn(struct cm_sidr_rep_msg *sidr_rep_msg)
824{
825 return cpu_to_be32(be32_to_cpu(sidr_rep_msg->offset8) >> 8);
826}
827
828static inline void cm_sidr_rep_set_qpn(struct cm_sidr_rep_msg *sidr_rep_msg,
829 __be32 qpn)
830{
831 sidr_rep_msg->offset8 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
832 (be32_to_cpu(sidr_rep_msg->offset8) &
833 0x000000FF));
834}
835
836#endif /* CM_MSGS_H */