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Merge remote-tracking branch 'staging/staging-next'
[deliverable/linux.git] / drivers / staging / lustre / lustre / ptlrpc / layout.c
CommitLineData
d7e09d03
PT		 1/*
2 * GPL HEADER START
3 *
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
6a5b99a4 18 * http://www.gnu.org/licenses/gpl-2.0.html
d7e09d03 19 *
d7e09d03
PT		 20 * GPL HEADER END
21 */
22/*
23 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
25 *
1dc563a6 26 * Copyright (c) 2011, 2015, Intel Corporation.
d7e09d03
PT		 27 */
28/*
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
31 *
32 * lustre/ptlrpc/layout.c
33 *
34 * Lustre Metadata Target (mdt) request handler
35 *
36 * Author: Nikita Danilov <nikita@clusterfs.com>
37 */
38/*
39 * This file contains the "capsule/pill" abstraction layered above PTLRPC.
40 *
41 * Every struct ptlrpc_request contains a "pill", which points to a description
42 * of the format that the request conforms to.
43 */
44
45#if !defined(__REQ_LAYOUT_USER__)
46
47#define DEBUG_SUBSYSTEM S_RPC
48
49#include <linux/module.h>
50
51/* LUSTRE_VERSION_CODE */
e27db149 52#include "../include/lustre_ver.h"
d7e09d03 53
e27db149 54#include "../include/obd_support.h"
d7e09d03 55/* lustre_swab_mdt_body */
e27db149 56#include "../include/lustre/lustre_idl.h"
d7e09d03 57/* obd2cli_tgt() (required by DEBUG_REQ()) */
e27db149 58#include "../include/obd.h"
d7e09d03
PT		 59
60/* __REQ_LAYOUT_USER__ */
61#endif
62/* struct ptlrpc_request, lustre_msg* */
e27db149 63#include "../include/lustre_req_layout.h"
e27db149
GKH		 64#include "../include/lustre_acl.h"
65#include "../include/lustre_debug.h"
d7e09d03
PT		 66
67/*
68 * RQFs (see below) refer to two struct req_msg_field arrays describing the
69 * client request and server reply, respectively.
70 */
71/* empty set of fields... for suitable definition of emptiness. */
72static const struct req_msg_field *empty[] = {
73 &RMF_PTLRPC_BODY
74};
75
76static const struct req_msg_field *mgs_target_info_only[] = {
77 &RMF_PTLRPC_BODY,
78 &RMF_MGS_TARGET_INFO
79};
80
81static const struct req_msg_field *mgs_set_info[] = {
82 &RMF_PTLRPC_BODY,
83 &RMF_MGS_SEND_PARAM
84};
85
86static const struct req_msg_field *mgs_config_read_client[] = {
87 &RMF_PTLRPC_BODY,
88 &RMF_MGS_CONFIG_BODY
89};
90
91static const struct req_msg_field *mgs_config_read_server[] = {
92 &RMF_PTLRPC_BODY,
93 &RMF_MGS_CONFIG_RES
94};
95
96static const struct req_msg_field *log_cancel_client[] = {
97 &RMF_PTLRPC_BODY,
98 &RMF_LOGCOOKIES
99};
100
101static const struct req_msg_field *mdt_body_only[] = {
102 &RMF_PTLRPC_BODY,
103 &RMF_MDT_BODY
104};
105
106static const struct req_msg_field *mdt_body_capa[] = {
107 &RMF_PTLRPC_BODY,
108 &RMF_MDT_BODY,
109 &RMF_CAPA1
110};
111
112static const struct req_msg_field *quotactl_only[] = {
113 &RMF_PTLRPC_BODY,
114 &RMF_OBD_QUOTACTL
115};
116
d7e09d03
PT		 117static const struct req_msg_field *mdt_close_client[] = {
118 &RMF_PTLRPC_BODY,
119 &RMF_MDT_EPOCH,
120 &RMF_REC_REINT,
121 &RMF_CAPA1
122};
123
48d23e61
JX		 124static const struct req_msg_field *mdt_release_close_client[] = {
125 &RMF_PTLRPC_BODY,
126 &RMF_MDT_EPOCH,
127 &RMF_REC_REINT,
128 &RMF_CAPA1,
129 &RMF_CLOSE_DATA
130};
131
d7e09d03
PT		 132static const struct req_msg_field *obd_statfs_server[] = {
133 &RMF_PTLRPC_BODY,
134 &RMF_OBD_STATFS
135};
136
137static const struct req_msg_field *seq_query_client[] = {
138 &RMF_PTLRPC_BODY,
139 &RMF_SEQ_OPC,
140 &RMF_SEQ_RANGE
141};
142
143static const struct req_msg_field *seq_query_server[] = {
144 &RMF_PTLRPC_BODY,
145 &RMF_SEQ_RANGE
146};
147
148static const struct req_msg_field *fld_query_client[] = {
149 &RMF_PTLRPC_BODY,
150 &RMF_FLD_OPC,
151 &RMF_FLD_MDFLD
152};
153
154static const struct req_msg_field *fld_query_server[] = {
155 &RMF_PTLRPC_BODY,
156 &RMF_FLD_MDFLD
157};
158
b78c2b9b 159static const struct req_msg_field *fld_read_client[] = {
160 &RMF_PTLRPC_BODY,
161 &RMF_FLD_MDFLD
162};
163
164static const struct req_msg_field *fld_read_server[] = {
165 &RMF_PTLRPC_BODY,
166 &RMF_GENERIC_DATA
167};
168
d7e09d03
PT		 169static const struct req_msg_field *mds_getattr_name_client[] = {
170 &RMF_PTLRPC_BODY,
171 &RMF_MDT_BODY,
172 &RMF_CAPA1,
173 &RMF_NAME
174};
175
176static const struct req_msg_field *mds_reint_client[] = {
177 &RMF_PTLRPC_BODY,
178 &RMF_REC_REINT
179};
180
181static const struct req_msg_field *mds_reint_create_client[] = {
182 &RMF_PTLRPC_BODY,
183 &RMF_REC_REINT,
184 &RMF_CAPA1,
185 &RMF_NAME
186};
187
188static const struct req_msg_field *mds_reint_create_slave_client[] = {
189 &RMF_PTLRPC_BODY,
190 &RMF_REC_REINT,
191 &RMF_CAPA1,
192 &RMF_NAME,
193 &RMF_EADATA,
194 &RMF_DLM_REQ
195};
196
341f1f0a 197static const struct req_msg_field *mds_reint_create_acl_client[] = {
d7e09d03
PT		 198 &RMF_PTLRPC_BODY,
199 &RMF_REC_REINT,
200 &RMF_CAPA1,
201 &RMF_NAME,
202 &RMF_EADATA,
203 &RMF_DLM_REQ
204};
205
206static const struct req_msg_field *mds_reint_create_sym_client[] = {
207 &RMF_PTLRPC_BODY,
208 &RMF_REC_REINT,
209 &RMF_CAPA1,
210 &RMF_NAME,
211 &RMF_SYMTGT,
212 &RMF_DLM_REQ
213};
214
215static const struct req_msg_field *mds_reint_open_client[] = {
216 &RMF_PTLRPC_BODY,
217 &RMF_REC_REINT,
218 &RMF_CAPA1,
219 &RMF_CAPA2,
220 &RMF_NAME,
221 &RMF_EADATA
222};
223
224static const struct req_msg_field *mds_reint_open_server[] = {
225 &RMF_PTLRPC_BODY,
226 &RMF_MDT_BODY,
227 &RMF_MDT_MD,
228 &RMF_ACL,
229 &RMF_CAPA1,
230 &RMF_CAPA2
231};
232
233static const struct req_msg_field *mds_reint_unlink_client[] = {
234 &RMF_PTLRPC_BODY,
235 &RMF_REC_REINT,
236 &RMF_CAPA1,
237 &RMF_NAME,
238 &RMF_DLM_REQ
239};
240
241static const struct req_msg_field *mds_reint_link_client[] = {
242 &RMF_PTLRPC_BODY,
243 &RMF_REC_REINT,
244 &RMF_CAPA1,
245 &RMF_CAPA2,
246 &RMF_NAME,
247 &RMF_DLM_REQ
248};
249
250static const struct req_msg_field *mds_reint_rename_client[] = {
251 &RMF_PTLRPC_BODY,
252 &RMF_REC_REINT,
253 &RMF_CAPA1,
254 &RMF_CAPA2,
255 &RMF_NAME,
256 &RMF_SYMTGT,
257 &RMF_DLM_REQ
258};
259
260static const struct req_msg_field *mds_last_unlink_server[] = {
261 &RMF_PTLRPC_BODY,
262 &RMF_MDT_BODY,
263 &RMF_MDT_MD,
264 &RMF_LOGCOOKIES,
265 &RMF_CAPA1,
266 &RMF_CAPA2
267};
268
269static const struct req_msg_field *mds_reint_setattr_client[] = {
270 &RMF_PTLRPC_BODY,
271 &RMF_REC_REINT,
272 &RMF_CAPA1,
273 &RMF_MDT_EPOCH,
274 &RMF_EADATA,
275 &RMF_LOGCOOKIES,
276 &RMF_DLM_REQ
277};
278
279static const struct req_msg_field *mds_reint_setxattr_client[] = {
280 &RMF_PTLRPC_BODY,
281 &RMF_REC_REINT,
282 &RMF_CAPA1,
283 &RMF_NAME,
e93a3082
AP		 284 &RMF_EADATA,
285 &RMF_DLM_REQ
d7e09d03
PT		 286};
287
288static const struct req_msg_field *mdt_swap_layouts[] = {
289 &RMF_PTLRPC_BODY,
290 &RMF_MDT_BODY,
291 &RMF_SWAP_LAYOUTS,
292 &RMF_CAPA1,
293 &RMF_CAPA2,
294 &RMF_DLM_REQ
295};
296
297static const struct req_msg_field *obd_connect_client[] = {
298 &RMF_PTLRPC_BODY,
299 &RMF_TGTUUID,
300 &RMF_CLUUID,
301 &RMF_CONN,
302 &RMF_CONNECT_DATA
303};
304
305static const struct req_msg_field *obd_connect_server[] = {
306 &RMF_PTLRPC_BODY,
307 &RMF_CONNECT_DATA
308};
309
310static const struct req_msg_field *obd_set_info_client[] = {
311 &RMF_PTLRPC_BODY,
312 &RMF_SETINFO_KEY,
313 &RMF_SETINFO_VAL
314};
315
316static const struct req_msg_field *ost_grant_shrink_client[] = {
317 &RMF_PTLRPC_BODY,
318 &RMF_SETINFO_KEY,
319 &RMF_OST_BODY
320};
321
322static const struct req_msg_field *mds_getinfo_client[] = {
323 &RMF_PTLRPC_BODY,
324 &RMF_GETINFO_KEY,
325 &RMF_GETINFO_VALLEN
326};
327
328static const struct req_msg_field *mds_getinfo_server[] = {
329 &RMF_PTLRPC_BODY,
330 &RMF_GETINFO_VAL,
331};
332
333static const struct req_msg_field *ldlm_enqueue_client[] = {
334 &RMF_PTLRPC_BODY,
335 &RMF_DLM_REQ
336};
337
338static const struct req_msg_field *ldlm_enqueue_server[] = {
339 &RMF_PTLRPC_BODY,
340 &RMF_DLM_REP
341};
342
343static const struct req_msg_field *ldlm_enqueue_lvb_server[] = {
344 &RMF_PTLRPC_BODY,
345 &RMF_DLM_REP,
346 &RMF_DLM_LVB
347};
348
349static const struct req_msg_field *ldlm_cp_callback_client[] = {
350 &RMF_PTLRPC_BODY,
351 &RMF_DLM_REQ,
352 &RMF_DLM_LVB
353};
354
355static const struct req_msg_field *ldlm_gl_callback_desc_client[] = {
356 &RMF_PTLRPC_BODY,
357 &RMF_DLM_REQ,
358 &RMF_DLM_GL_DESC
359};
360
361static const struct req_msg_field *ldlm_gl_callback_server[] = {
362 &RMF_PTLRPC_BODY,
363 &RMF_DLM_LVB
364};
365
366static const struct req_msg_field *ldlm_intent_basic_client[] = {
367 &RMF_PTLRPC_BODY,
368 &RMF_DLM_REQ,
369 &RMF_LDLM_INTENT,
370};
371
372static const struct req_msg_field *ldlm_intent_client[] = {
373 &RMF_PTLRPC_BODY,
374 &RMF_DLM_REQ,
375 &RMF_LDLM_INTENT,
376 &RMF_REC_REINT
377};
378
379static const struct req_msg_field *ldlm_intent_server[] = {
380 &RMF_PTLRPC_BODY,
381 &RMF_DLM_REP,
382 &RMF_MDT_BODY,
383 &RMF_MDT_MD,
384 &RMF_ACL
385};
386
387static const struct req_msg_field *ldlm_intent_layout_client[] = {
388 &RMF_PTLRPC_BODY,
389 &RMF_DLM_REQ,
390 &RMF_LDLM_INTENT,
391 &RMF_LAYOUT_INTENT,
392 &RMF_EADATA /* for new layout to be set up */
393};
c9f6bb96 394
d7e09d03
PT		 395static const struct req_msg_field *ldlm_intent_open_server[] = {
396 &RMF_PTLRPC_BODY,
397 &RMF_DLM_REP,
398 &RMF_MDT_BODY,
399 &RMF_MDT_MD,
400 &RMF_ACL,
401 &RMF_CAPA1,
402 &RMF_CAPA2
403};
404
405static const struct req_msg_field *ldlm_intent_getattr_client[] = {
406 &RMF_PTLRPC_BODY,
407 &RMF_DLM_REQ,
408 &RMF_LDLM_INTENT,
409 &RMF_MDT_BODY, /* coincides with mds_getattr_name_client[] */
410 &RMF_CAPA1,
411 &RMF_NAME
412};
413
414static const struct req_msg_field *ldlm_intent_getattr_server[] = {
415 &RMF_PTLRPC_BODY,
416 &RMF_DLM_REP,
417 &RMF_MDT_BODY,
418 &RMF_MDT_MD,
419 &RMF_ACL,
420 &RMF_CAPA1
421};
422
423static const struct req_msg_field *ldlm_intent_create_client[] = {
424 &RMF_PTLRPC_BODY,
425 &RMF_DLM_REQ,
426 &RMF_LDLM_INTENT,
427 &RMF_REC_REINT, /* coincides with mds_reint_create_client[] */
428 &RMF_CAPA1,
429 &RMF_NAME,
430 &RMF_EADATA
431};
432
433static const struct req_msg_field *ldlm_intent_open_client[] = {
434 &RMF_PTLRPC_BODY,
435 &RMF_DLM_REQ,
436 &RMF_LDLM_INTENT,
437 &RMF_REC_REINT, /* coincides with mds_reint_open_client[] */
438 &RMF_CAPA1,
439 &RMF_CAPA2,
440 &RMF_NAME,
441 &RMF_EADATA
442};
443
444static const struct req_msg_field *ldlm_intent_unlink_client[] = {
445 &RMF_PTLRPC_BODY,
446 &RMF_DLM_REQ,
447 &RMF_LDLM_INTENT,
448 &RMF_REC_REINT, /* coincides with mds_reint_unlink_client[] */
449 &RMF_CAPA1,
450 &RMF_NAME
451};
452
7fc1f831
AP		 453static const struct req_msg_field *ldlm_intent_getxattr_client[] = {
454 &RMF_PTLRPC_BODY,
455 &RMF_DLM_REQ,
456 &RMF_LDLM_INTENT,
457 &RMF_MDT_BODY,
458 &RMF_CAPA1,
459};
460
461static const struct req_msg_field *ldlm_intent_getxattr_server[] = {
462 &RMF_PTLRPC_BODY,
463 &RMF_DLM_REP,
464 &RMF_MDT_BODY,
465 &RMF_MDT_MD,
466 &RMF_ACL, /* for req_capsule_extend/mdt_intent_policy */
467 &RMF_EADATA,
468 &RMF_EAVALS,
469 &RMF_EAVALS_LENS
470};
471
d7e09d03
PT		 472static const struct req_msg_field *mds_getxattr_client[] = {
473 &RMF_PTLRPC_BODY,
474 &RMF_MDT_BODY,
475 &RMF_CAPA1,
476 &RMF_NAME,
477 &RMF_EADATA
478};
479
480static const struct req_msg_field *mds_getxattr_server[] = {
481 &RMF_PTLRPC_BODY,
482 &RMF_MDT_BODY,
483 &RMF_EADATA
484};
485
486static const struct req_msg_field *mds_getattr_server[] = {
487 &RMF_PTLRPC_BODY,
488 &RMF_MDT_BODY,
489 &RMF_MDT_MD,
490 &RMF_ACL,
491 &RMF_CAPA1,
492 &RMF_CAPA2
493};
494
495static const struct req_msg_field *mds_setattr_server[] = {
496 &RMF_PTLRPC_BODY,
497 &RMF_MDT_BODY,
498 &RMF_MDT_MD,
499 &RMF_ACL,
500 &RMF_CAPA1,
501 &RMF_CAPA2
502};
503
d7e09d03
PT		 504static const struct req_msg_field *llog_origin_handle_create_client[] = {
505 &RMF_PTLRPC_BODY,
506 &RMF_LLOGD_BODY,
507 &RMF_NAME
508};
509
510static const struct req_msg_field *llogd_body_only[] = {
511 &RMF_PTLRPC_BODY,
512 &RMF_LLOGD_BODY
513};
514
515static const struct req_msg_field *llog_log_hdr_only[] = {
516 &RMF_PTLRPC_BODY,
517 &RMF_LLOG_LOG_HDR
518};
519
520static const struct req_msg_field *llogd_conn_body_only[] = {
521 &RMF_PTLRPC_BODY,
522 &RMF_LLOGD_CONN_BODY
523};
524
525static const struct req_msg_field *llog_origin_handle_next_block_server[] = {
526 &RMF_PTLRPC_BODY,
527 &RMF_LLOGD_BODY,
528 &RMF_EADATA
529};
530
d7e09d03
PT		 531static const struct req_msg_field *ost_body_only[] = {
532 &RMF_PTLRPC_BODY,
533 &RMF_OST_BODY
534};
535
536static const struct req_msg_field *ost_body_capa[] = {
537 &RMF_PTLRPC_BODY,
538 &RMF_OST_BODY,
539 &RMF_CAPA1
540};
541
542static const struct req_msg_field *ost_destroy_client[] = {
543 &RMF_PTLRPC_BODY,
544 &RMF_OST_BODY,
545 &RMF_DLM_REQ,
546 &RMF_CAPA1
547};
548
d7e09d03
PT		 549static const struct req_msg_field *ost_brw_client[] = {
550 &RMF_PTLRPC_BODY,
551 &RMF_OST_BODY,
552 &RMF_OBD_IOOBJ,
553 &RMF_NIOBUF_REMOTE,
554 &RMF_CAPA1
555};
556
557static const struct req_msg_field *ost_brw_read_server[] = {
558 &RMF_PTLRPC_BODY,
559 &RMF_OST_BODY
560};
561
562static const struct req_msg_field *ost_brw_write_server[] = {
563 &RMF_PTLRPC_BODY,
564 &RMF_OST_BODY,
565 &RMF_RCS
566};
567
568static const struct req_msg_field *ost_get_info_generic_server[] = {
569 &RMF_PTLRPC_BODY,
570 &RMF_GENERIC_DATA,
571};
572
573static const struct req_msg_field *ost_get_info_generic_client[] = {
574 &RMF_PTLRPC_BODY,
45fe5b13 575 &RMF_GETINFO_KEY
d7e09d03
PT		 576};
577
578static const struct req_msg_field *ost_get_last_id_server[] = {
579 &RMF_PTLRPC_BODY,
580 &RMF_OBD_ID
581};
582
45fe5b13
MP		 583static const struct req_msg_field *ost_get_last_fid_client[] = {
584 &RMF_PTLRPC_BODY,
585 &RMF_GETINFO_KEY,
586 &RMF_FID,
587};
588
d7e09d03
PT		 589static const struct req_msg_field *ost_get_last_fid_server[] = {
590 &RMF_PTLRPC_BODY,
591 &RMF_FID,
592};
593
594static const struct req_msg_field *ost_get_fiemap_client[] = {
595 &RMF_PTLRPC_BODY,
596 &RMF_FIEMAP_KEY,
597 &RMF_FIEMAP_VAL
598};
599
600static const struct req_msg_field *ost_get_fiemap_server[] = {
601 &RMF_PTLRPC_BODY,
602 &RMF_FIEMAP_VAL
603};
604
605static const struct req_msg_field *mdt_hsm_progress[] = {
606 &RMF_PTLRPC_BODY,
607 &RMF_MDT_BODY,
608 &RMF_MDS_HSM_PROGRESS,
609};
610
611static const struct req_msg_field *mdt_hsm_ct_register[] = {
612 &RMF_PTLRPC_BODY,
613 &RMF_MDT_BODY,
614 &RMF_MDS_HSM_ARCHIVE,
615};
616
617static const struct req_msg_field *mdt_hsm_ct_unregister[] = {
618 &RMF_PTLRPC_BODY,
619 &RMF_MDT_BODY,
620};
621
622static const struct req_msg_field *mdt_hsm_action_server[] = {
623 &RMF_PTLRPC_BODY,
624 &RMF_MDT_BODY,
625 &RMF_MDS_HSM_CURRENT_ACTION,
626};
627
628static const struct req_msg_field *mdt_hsm_state_get_server[] = {
629 &RMF_PTLRPC_BODY,
630 &RMF_MDT_BODY,
631 &RMF_HSM_USER_STATE,
632};
633
634static const struct req_msg_field *mdt_hsm_state_set[] = {
635 &RMF_PTLRPC_BODY,
636 &RMF_MDT_BODY,
637 &RMF_CAPA1,
638 &RMF_HSM_STATE_SET,
639};
640
641static const struct req_msg_field *mdt_hsm_request[] = {
642 &RMF_PTLRPC_BODY,
643 &RMF_MDT_BODY,
644 &RMF_MDS_HSM_REQUEST,
645 &RMF_MDS_HSM_USER_ITEM,
646 &RMF_GENERIC_DATA,
647};
648
649static struct req_format *req_formats[] = {
650 &RQF_OBD_PING,
651 &RQF_OBD_SET_INFO,
d7e09d03
PT		 652 &RQF_SEC_CTX,
653 &RQF_MGS_TARGET_REG,
654 &RQF_MGS_SET_INFO,
655 &RQF_MGS_CONFIG_READ,
656 &RQF_SEQ_QUERY,
657 &RQF_FLD_QUERY,
b78c2b9b 658 &RQF_FLD_READ,
d7e09d03
PT		 659 &RQF_MDS_CONNECT,
660 &RQF_MDS_DISCONNECT,
661 &RQF_MDS_GET_INFO,
662 &RQF_MDS_GETSTATUS,
663 &RQF_MDS_STATFS,
664 &RQF_MDS_GETATTR,
665 &RQF_MDS_GETATTR_NAME,
666 &RQF_MDS_GETXATTR,
667 &RQF_MDS_SYNC,
668 &RQF_MDS_CLOSE,
48d23e61 669 &RQF_MDS_RELEASE_CLOSE,
d7e09d03
PT		 670 &RQF_MDS_READPAGE,
671 &RQF_MDS_WRITEPAGE,
d7e09d03
PT		 672 &RQF_MDS_DONE_WRITING,
673 &RQF_MDS_REINT,
674 &RQF_MDS_REINT_CREATE,
341f1f0a 675 &RQF_MDS_REINT_CREATE_ACL,
d7e09d03
PT		 676 &RQF_MDS_REINT_CREATE_SLAVE,
677 &RQF_MDS_REINT_CREATE_SYM,
678 &RQF_MDS_REINT_OPEN,
679 &RQF_MDS_REINT_UNLINK,
680 &RQF_MDS_REINT_LINK,
681 &RQF_MDS_REINT_RENAME,
682 &RQF_MDS_REINT_SETATTR,
683 &RQF_MDS_REINT_SETXATTR,
684 &RQF_MDS_QUOTACHECK,
685 &RQF_MDS_QUOTACTL,
686 &RQF_MDS_HSM_PROGRESS,
687 &RQF_MDS_HSM_CT_REGISTER,
688 &RQF_MDS_HSM_CT_UNREGISTER,
689 &RQF_MDS_HSM_STATE_GET,
690 &RQF_MDS_HSM_STATE_SET,
691 &RQF_MDS_HSM_ACTION,
692 &RQF_MDS_HSM_REQUEST,
693 &RQF_MDS_SWAP_LAYOUTS,
d7e09d03
PT		 694 &RQF_QC_CALLBACK,
695 &RQF_OST_CONNECT,
696 &RQF_OST_DISCONNECT,
697 &RQF_OST_QUOTACHECK,
698 &RQF_OST_QUOTACTL,
699 &RQF_OST_GETATTR,
700 &RQF_OST_SETATTR,
701 &RQF_OST_CREATE,
702 &RQF_OST_PUNCH,
703 &RQF_OST_SYNC,
704 &RQF_OST_DESTROY,
705 &RQF_OST_BRW_READ,
706 &RQF_OST_BRW_WRITE,
707 &RQF_OST_STATFS,
708 &RQF_OST_SET_GRANT_INFO,
45fe5b13 709 &RQF_OST_GET_INFO,
d7e09d03
PT		 710 &RQF_OST_GET_INFO_LAST_ID,
711 &RQF_OST_GET_INFO_LAST_FID,
712 &RQF_OST_SET_INFO_LAST_FID,
713 &RQF_OST_GET_INFO_FIEMAP,
714 &RQF_LDLM_ENQUEUE,
715 &RQF_LDLM_ENQUEUE_LVB,
716 &RQF_LDLM_CONVERT,
717 &RQF_LDLM_CANCEL,
718 &RQF_LDLM_CALLBACK,
719 &RQF_LDLM_CP_CALLBACK,
720 &RQF_LDLM_BL_CALLBACK,
721 &RQF_LDLM_GL_CALLBACK,
722 &RQF_LDLM_GL_DESC_CALLBACK,
723 &RQF_LDLM_INTENT,
724 &RQF_LDLM_INTENT_BASIC,
725 &RQF_LDLM_INTENT_LAYOUT,
726 &RQF_LDLM_INTENT_GETATTR,
727 &RQF_LDLM_INTENT_OPEN,
728 &RQF_LDLM_INTENT_CREATE,
729 &RQF_LDLM_INTENT_UNLINK,
7fc1f831 730 &RQF_LDLM_INTENT_GETXATTR,
d7e09d03
PT		 731 &RQF_LOG_CANCEL,
732 &RQF_LLOG_ORIGIN_HANDLE_CREATE,
733 &RQF_LLOG_ORIGIN_HANDLE_DESTROY,
734 &RQF_LLOG_ORIGIN_HANDLE_NEXT_BLOCK,
735 &RQF_LLOG_ORIGIN_HANDLE_PREV_BLOCK,
736 &RQF_LLOG_ORIGIN_HANDLE_READ_HEADER,
65f1c781
MP		 737 &RQF_LLOG_ORIGIN_CONNECT,
738 &RQF_CONNECT,
d7e09d03
PT		 739};
740
741struct req_msg_field {
742 const __u32 rmf_flags;
743 const char *rmf_name;
744 /**
745 * Field length. (-1) means "variable length". If the
746 * \a RMF_F_STRUCT_ARRAY flag is set the field is also variable-length,
747 * but the actual size must be a whole multiple of \a rmf_size.
748 */
749 const int rmf_size;
750 void (*rmf_swabber)(void *);
751 void (*rmf_dumper)(void *);
752 int rmf_offset[ARRAY_SIZE(req_formats)][RCL_NR];
753};
754
755enum rmf_flags {
756 /**
757 * The field is a string, must be NUL-terminated.
758 */
6876a143 759 RMF_F_STRING = BIT(0),
d7e09d03
PT		 760 /**
761 * The field's buffer size need not match the declared \a rmf_size.
762 */
6876a143 763 RMF_F_NO_SIZE_CHECK = BIT(1),
d7e09d03
PT		 764 /**
765 * The field's buffer size must be a whole multiple of the declared \a
766 * rmf_size and the \a rmf_swabber function must work on the declared \a
767 * rmf_size worth of bytes.
768 */
6876a143 769 RMF_F_STRUCT_ARRAY = BIT(2)
d7e09d03
PT		 770};
771
772struct req_capsule;
773
774/*
775 * Request fields.
776 */
d0bfef31
CH		 777#define DEFINE_MSGF(name, flags, size, swabber, dumper) { \
778 .rmf_name = (name), \
779 .rmf_flags = (flags), \
780 .rmf_size = (size), \
781 .rmf_swabber = (void (*)(void *))(swabber), \
cf9cac22 782 .rmf_dumper = (void (*)(void *))(dumper) \
d7e09d03
PT		 783}
784
785struct req_msg_field RMF_GENERIC_DATA =
786 DEFINE_MSGF("generic_data", 0,
787 -1, NULL, NULL);
788EXPORT_SYMBOL(RMF_GENERIC_DATA);
789
790struct req_msg_field RMF_MGS_TARGET_INFO =
791 DEFINE_MSGF("mgs_target_info", 0,
792 sizeof(struct mgs_target_info),
793 lustre_swab_mgs_target_info, NULL);
794EXPORT_SYMBOL(RMF_MGS_TARGET_INFO);
795
796struct req_msg_field RMF_MGS_SEND_PARAM =
797 DEFINE_MSGF("mgs_send_param", 0,
798 sizeof(struct mgs_send_param),
799 NULL, NULL);
800EXPORT_SYMBOL(RMF_MGS_SEND_PARAM);
801
802struct req_msg_field RMF_MGS_CONFIG_BODY =
803 DEFINE_MSGF("mgs_config_read request", 0,
804 sizeof(struct mgs_config_body),
805 lustre_swab_mgs_config_body, NULL);
806EXPORT_SYMBOL(RMF_MGS_CONFIG_BODY);
807
808struct req_msg_field RMF_MGS_CONFIG_RES =
809 DEFINE_MSGF("mgs_config_read reply ", 0,
810 sizeof(struct mgs_config_res),
811 lustre_swab_mgs_config_res, NULL);
812EXPORT_SYMBOL(RMF_MGS_CONFIG_RES);
813
814struct req_msg_field RMF_U32 =
815 DEFINE_MSGF("generic u32", 0,
816 sizeof(__u32), lustre_swab_generic_32s, NULL);
817EXPORT_SYMBOL(RMF_U32);
818
819struct req_msg_field RMF_SETINFO_VAL =
820 DEFINE_MSGF("setinfo_val", 0, -1, NULL, NULL);
821EXPORT_SYMBOL(RMF_SETINFO_VAL);
822
823struct req_msg_field RMF_GETINFO_KEY =
824 DEFINE_MSGF("getinfo_key", 0, -1, NULL, NULL);
825EXPORT_SYMBOL(RMF_GETINFO_KEY);
826
827struct req_msg_field RMF_GETINFO_VALLEN =
828 DEFINE_MSGF("getinfo_vallen", 0,
829 sizeof(__u32), lustre_swab_generic_32s, NULL);
830EXPORT_SYMBOL(RMF_GETINFO_VALLEN);
831
832struct req_msg_field RMF_GETINFO_VAL =
833 DEFINE_MSGF("getinfo_val", 0, -1, NULL, NULL);
834EXPORT_SYMBOL(RMF_GETINFO_VAL);
835
836struct req_msg_field RMF_SEQ_OPC =
837 DEFINE_MSGF("seq_query_opc", 0,
838 sizeof(__u32), lustre_swab_generic_32s, NULL);
839EXPORT_SYMBOL(RMF_SEQ_OPC);
840
841struct req_msg_field RMF_SEQ_RANGE =
842 DEFINE_MSGF("seq_query_range", 0,
843 sizeof(struct lu_seq_range),
844 lustre_swab_lu_seq_range, NULL);
845EXPORT_SYMBOL(RMF_SEQ_RANGE);
846
847struct req_msg_field RMF_FLD_OPC =
848 DEFINE_MSGF("fld_query_opc", 0,
849 sizeof(__u32), lustre_swab_generic_32s, NULL);
850EXPORT_SYMBOL(RMF_FLD_OPC);
851
852struct req_msg_field RMF_FLD_MDFLD =
853 DEFINE_MSGF("fld_query_mdfld", 0,
854 sizeof(struct lu_seq_range),
855 lustre_swab_lu_seq_range, NULL);
856EXPORT_SYMBOL(RMF_FLD_MDFLD);
857
858struct req_msg_field RMF_MDT_BODY =
859 DEFINE_MSGF("mdt_body", 0,
860 sizeof(struct mdt_body), lustre_swab_mdt_body, NULL);
861EXPORT_SYMBOL(RMF_MDT_BODY);
862
863struct req_msg_field RMF_OBD_QUOTACTL =
864 DEFINE_MSGF("obd_quotactl", 0,
865 sizeof(struct obd_quotactl),
866 lustre_swab_obd_quotactl, NULL);
867EXPORT_SYMBOL(RMF_OBD_QUOTACTL);
868
d7e09d03
PT		 869struct req_msg_field RMF_MDT_EPOCH =
870 DEFINE_MSGF("mdt_ioepoch", 0,
871 sizeof(struct mdt_ioepoch), lustre_swab_mdt_ioepoch, NULL);
872EXPORT_SYMBOL(RMF_MDT_EPOCH);
873
874struct req_msg_field RMF_PTLRPC_BODY =
875 DEFINE_MSGF("ptlrpc_body", 0,
876 sizeof(struct ptlrpc_body), lustre_swab_ptlrpc_body, NULL);
877EXPORT_SYMBOL(RMF_PTLRPC_BODY);
878
48d23e61
JX		 879struct req_msg_field RMF_CLOSE_DATA =
880 DEFINE_MSGF("data_version", 0,
881 sizeof(struct close_data), lustre_swab_close_data, NULL);
882EXPORT_SYMBOL(RMF_CLOSE_DATA);
883
d7e09d03
PT		 884struct req_msg_field RMF_OBD_STATFS =
885 DEFINE_MSGF("obd_statfs", 0,
886 sizeof(struct obd_statfs), lustre_swab_obd_statfs, NULL);
887EXPORT_SYMBOL(RMF_OBD_STATFS);
888
889struct req_msg_field RMF_SETINFO_KEY =
890 DEFINE_MSGF("setinfo_key", 0, -1, NULL, NULL);
891EXPORT_SYMBOL(RMF_SETINFO_KEY);
892
893struct req_msg_field RMF_NAME =
894 DEFINE_MSGF("name", RMF_F_STRING, -1, NULL, NULL);
895EXPORT_SYMBOL(RMF_NAME);
896
897struct req_msg_field RMF_SYMTGT =
898 DEFINE_MSGF("symtgt", RMF_F_STRING, -1, NULL, NULL);
899EXPORT_SYMBOL(RMF_SYMTGT);
900
901struct req_msg_field RMF_TGTUUID =
902 DEFINE_MSGF("tgtuuid", RMF_F_STRING, sizeof(struct obd_uuid) - 1, NULL,
30c0aa39 903 NULL);
d7e09d03
PT		 904EXPORT_SYMBOL(RMF_TGTUUID);
905
906struct req_msg_field RMF_CLUUID =
907 DEFINE_MSGF("cluuid", RMF_F_STRING, sizeof(struct obd_uuid) - 1, NULL,
30c0aa39 908 NULL);
d7e09d03
PT		 909EXPORT_SYMBOL(RMF_CLUUID);
910
911struct req_msg_field RMF_STRING =
912 DEFINE_MSGF("string", RMF_F_STRING, -1, NULL, NULL);
913EXPORT_SYMBOL(RMF_STRING);
914
915struct req_msg_field RMF_LLOGD_BODY =
916 DEFINE_MSGF("llogd_body", 0,
917 sizeof(struct llogd_body), lustre_swab_llogd_body, NULL);
918EXPORT_SYMBOL(RMF_LLOGD_BODY);
919
920struct req_msg_field RMF_LLOG_LOG_HDR =
921 DEFINE_MSGF("llog_log_hdr", 0,
922 sizeof(struct llog_log_hdr), lustre_swab_llog_hdr, NULL);
923EXPORT_SYMBOL(RMF_LLOG_LOG_HDR);
924
925struct req_msg_field RMF_LLOGD_CONN_BODY =
926 DEFINE_MSGF("llogd_conn_body", 0,
927 sizeof(struct llogd_conn_body),
928 lustre_swab_llogd_conn_body, NULL);
929EXPORT_SYMBOL(RMF_LLOGD_CONN_BODY);
930
931/*
932 * connection handle received in MDS_CONNECT request.
933 *
934 * No swabbing needed because struct lustre_handle contains only a 64-bit cookie
935 * that the client does not interpret at all.
936 */
937struct req_msg_field RMF_CONN =
938 DEFINE_MSGF("conn", 0, sizeof(struct lustre_handle), NULL, NULL);
939EXPORT_SYMBOL(RMF_CONN);
940
941struct req_msg_field RMF_CONNECT_DATA =
942 DEFINE_MSGF("cdata",
943 RMF_F_NO_SIZE_CHECK /* we allow extra space for interop */,
d7e09d03 944 sizeof(struct obd_connect_data),
d7e09d03
PT		 945 lustre_swab_connect, NULL);
946EXPORT_SYMBOL(RMF_CONNECT_DATA);
947
948struct req_msg_field RMF_DLM_REQ =
949 DEFINE_MSGF("dlm_req", RMF_F_NO_SIZE_CHECK /* ldlm_request_bufsize */,
950 sizeof(struct ldlm_request),
951 lustre_swab_ldlm_request, NULL);
952EXPORT_SYMBOL(RMF_DLM_REQ);
953
954struct req_msg_field RMF_DLM_REP =
955 DEFINE_MSGF("dlm_rep", 0,
956 sizeof(struct ldlm_reply), lustre_swab_ldlm_reply, NULL);
957EXPORT_SYMBOL(RMF_DLM_REP);
958
959struct req_msg_field RMF_LDLM_INTENT =
960 DEFINE_MSGF("ldlm_intent", 0,
961 sizeof(struct ldlm_intent), lustre_swab_ldlm_intent, NULL);
962EXPORT_SYMBOL(RMF_LDLM_INTENT);
963
964struct req_msg_field RMF_DLM_LVB =
965 DEFINE_MSGF("dlm_lvb", 0, -1, NULL, NULL);
966EXPORT_SYMBOL(RMF_DLM_LVB);
967
968struct req_msg_field RMF_DLM_GL_DESC =
969 DEFINE_MSGF("dlm_gl_desc", 0, sizeof(union ldlm_gl_desc),
970 lustre_swab_gl_desc, NULL);
971EXPORT_SYMBOL(RMF_DLM_GL_DESC);
972
973struct req_msg_field RMF_MDT_MD =
974 DEFINE_MSGF("mdt_md", RMF_F_NO_SIZE_CHECK, MIN_MD_SIZE, NULL, NULL);
975EXPORT_SYMBOL(RMF_MDT_MD);
976
977struct req_msg_field RMF_REC_REINT =
978 DEFINE_MSGF("rec_reint", 0, sizeof(struct mdt_rec_reint),
979 lustre_swab_mdt_rec_reint, NULL);
980EXPORT_SYMBOL(RMF_REC_REINT);
981
982/* FIXME: this length should be defined as a macro */
983struct req_msg_field RMF_EADATA = DEFINE_MSGF("eadata", 0, -1,
984 NULL, NULL);
985EXPORT_SYMBOL(RMF_EADATA);
986
7fc1f831
AP		 987struct req_msg_field RMF_EAVALS = DEFINE_MSGF("eavals", 0, -1, NULL, NULL);
988EXPORT_SYMBOL(RMF_EAVALS);
989
d7e09d03
PT		 990struct req_msg_field RMF_ACL =
991 DEFINE_MSGF("acl", RMF_F_NO_SIZE_CHECK,
992 LUSTRE_POSIX_ACL_MAX_SIZE, NULL, NULL);
993EXPORT_SYMBOL(RMF_ACL);
994
995/* FIXME: this should be made to use RMF_F_STRUCT_ARRAY */
996struct req_msg_field RMF_LOGCOOKIES =
997 DEFINE_MSGF("logcookies", RMF_F_NO_SIZE_CHECK /* multiple cookies */,
998 sizeof(struct llog_cookie), NULL, NULL);
999EXPORT_SYMBOL(RMF_LOGCOOKIES);
1000
1001struct req_msg_field RMF_CAPA1 =
1002 DEFINE_MSGF("capa", 0, sizeof(struct lustre_capa),
1003 lustre_swab_lustre_capa, NULL);
1004EXPORT_SYMBOL(RMF_CAPA1);
1005
1006struct req_msg_field RMF_CAPA2 =
1007 DEFINE_MSGF("capa", 0, sizeof(struct lustre_capa),
1008 lustre_swab_lustre_capa, NULL);
1009EXPORT_SYMBOL(RMF_CAPA2);
1010
1011struct req_msg_field RMF_LAYOUT_INTENT =
1012 DEFINE_MSGF("layout_intent", 0,
1013 sizeof(struct layout_intent), lustre_swab_layout_intent,
1014 NULL);
1015EXPORT_SYMBOL(RMF_LAYOUT_INTENT);
1016
1017/*
1018 * OST request field.
1019 */
1020struct req_msg_field RMF_OST_BODY =
1021 DEFINE_MSGF("ost_body", 0,
1022 sizeof(struct ost_body), lustre_swab_ost_body, dump_ost_body);
1023EXPORT_SYMBOL(RMF_OST_BODY);
1024
1025struct req_msg_field RMF_OBD_IOOBJ =
1026 DEFINE_MSGF("obd_ioobj", RMF_F_STRUCT_ARRAY,
1027 sizeof(struct obd_ioobj), lustre_swab_obd_ioobj, dump_ioo);
1028EXPORT_SYMBOL(RMF_OBD_IOOBJ);
1029
1030struct req_msg_field RMF_NIOBUF_REMOTE =
1031 DEFINE_MSGF("niobuf_remote", RMF_F_STRUCT_ARRAY,
1032 sizeof(struct niobuf_remote), lustre_swab_niobuf_remote,
1033 dump_rniobuf);
1034EXPORT_SYMBOL(RMF_NIOBUF_REMOTE);
1035
1036struct req_msg_field RMF_RCS =
1037 DEFINE_MSGF("niobuf_remote", RMF_F_STRUCT_ARRAY, sizeof(__u32),
1038 lustre_swab_generic_32s, dump_rcs);
1039EXPORT_SYMBOL(RMF_RCS);
1040
7fc1f831
AP		 1041struct req_msg_field RMF_EAVALS_LENS =
1042 DEFINE_MSGF("eavals_lens", RMF_F_STRUCT_ARRAY, sizeof(__u32),
30c0aa39 1043 lustre_swab_generic_32s, NULL);
7fc1f831
AP		 1044EXPORT_SYMBOL(RMF_EAVALS_LENS);
1045
d7e09d03 1046struct req_msg_field RMF_OBD_ID =
21aef7d9
OD		 1047 DEFINE_MSGF("u64", 0,
1048 sizeof(u64), lustre_swab_ost_last_id, NULL);
d7e09d03
PT		 1049EXPORT_SYMBOL(RMF_OBD_ID);
1050
1051struct req_msg_field RMF_FID =
1052 DEFINE_MSGF("fid", 0,
1053 sizeof(struct lu_fid), lustre_swab_lu_fid, NULL);
1054EXPORT_SYMBOL(RMF_FID);
1055
1056struct req_msg_field RMF_OST_ID =
1057 DEFINE_MSGF("ost_id", 0,
1058 sizeof(struct ost_id), lustre_swab_ost_id, NULL);
1059EXPORT_SYMBOL(RMF_OST_ID);
1060
1061struct req_msg_field RMF_FIEMAP_KEY =
1062 DEFINE_MSGF("fiemap", 0, sizeof(struct ll_fiemap_info_key),
1063 lustre_swab_fiemap, NULL);
1064EXPORT_SYMBOL(RMF_FIEMAP_KEY);
1065
1066struct req_msg_field RMF_FIEMAP_VAL =
1067 DEFINE_MSGF("fiemap", 0, -1, lustre_swab_fiemap, NULL);
1068EXPORT_SYMBOL(RMF_FIEMAP_VAL);
1069
d7e09d03
PT		 1070struct req_msg_field RMF_HSM_USER_STATE =
1071 DEFINE_MSGF("hsm_user_state", 0, sizeof(struct hsm_user_state),
1072 lustre_swab_hsm_user_state, NULL);
1073EXPORT_SYMBOL(RMF_HSM_USER_STATE);
1074
1075struct req_msg_field RMF_HSM_STATE_SET =
1076 DEFINE_MSGF("hsm_state_set", 0, sizeof(struct hsm_state_set),
1077 lustre_swab_hsm_state_set, NULL);
1078EXPORT_SYMBOL(RMF_HSM_STATE_SET);
1079
1080struct req_msg_field RMF_MDS_HSM_PROGRESS =
1081 DEFINE_MSGF("hsm_progress", 0, sizeof(struct hsm_progress_kernel),
1082 lustre_swab_hsm_progress_kernel, NULL);
1083EXPORT_SYMBOL(RMF_MDS_HSM_PROGRESS);
1084
1085struct req_msg_field RMF_MDS_HSM_CURRENT_ACTION =
1086 DEFINE_MSGF("hsm_current_action", 0, sizeof(struct hsm_current_action),
1087 lustre_swab_hsm_current_action, NULL);
1088EXPORT_SYMBOL(RMF_MDS_HSM_CURRENT_ACTION);
1089
1090struct req_msg_field RMF_MDS_HSM_USER_ITEM =
1091 DEFINE_MSGF("hsm_user_item", RMF_F_STRUCT_ARRAY,
1092 sizeof(struct hsm_user_item), lustre_swab_hsm_user_item,
1093 NULL);
1094EXPORT_SYMBOL(RMF_MDS_HSM_USER_ITEM);
1095
1096struct req_msg_field RMF_MDS_HSM_ARCHIVE =
1097 DEFINE_MSGF("hsm_archive", 0,
1098 sizeof(__u32), lustre_swab_generic_32s, NULL);
1099EXPORT_SYMBOL(RMF_MDS_HSM_ARCHIVE);
1100
1101struct req_msg_field RMF_MDS_HSM_REQUEST =
1102 DEFINE_MSGF("hsm_request", 0, sizeof(struct hsm_request),
1103 lustre_swab_hsm_request, NULL);
1104EXPORT_SYMBOL(RMF_MDS_HSM_REQUEST);
1105
d7e09d03
PT		 1106struct req_msg_field RMF_SWAP_LAYOUTS =
1107 DEFINE_MSGF("swap_layouts", 0, sizeof(struct mdc_swap_layouts),
1108 lustre_swab_swap_layouts, NULL);
1109EXPORT_SYMBOL(RMF_SWAP_LAYOUTS);
1110/*
1111 * Request formats.
1112 */
1113
1114struct req_format {
1115 const char *rf_name;
d0bfef31 1116 int rf_idx;
d7e09d03 1117 struct {
d0bfef31 1118 int nr;
d7e09d03
PT		 1119 const struct req_msg_field **d;
1120 } rf_fields[RCL_NR];
1121};
1122
d0bfef31
CH		 1123#define DEFINE_REQ_FMT(name, client, client_nr, server, server_nr) { \
1124 .rf_name = name, \
1125 .rf_fields = { \
d7e09d03
PT		 1126 [RCL_CLIENT] = { \
1127 .nr = client_nr, \
d0bfef31
CH		 1128 .d = client \
1129 }, \
d7e09d03
PT		 1130 [RCL_SERVER] = { \
1131 .nr = server_nr, \
d0bfef31
CH		 1132 .d = server \
1133 } \
1134 } \
d7e09d03
PT		 1135}
1136
1137#define DEFINE_REQ_FMT0(name, client, server) \
1138DEFINE_REQ_FMT(name, client, ARRAY_SIZE(client), server, ARRAY_SIZE(server))
1139
1140struct req_format RQF_OBD_PING =
1141 DEFINE_REQ_FMT0("OBD_PING", empty, empty);
1142EXPORT_SYMBOL(RQF_OBD_PING);
1143
1144struct req_format RQF_OBD_SET_INFO =
1145 DEFINE_REQ_FMT0("OBD_SET_INFO", obd_set_info_client, empty);
1146EXPORT_SYMBOL(RQF_OBD_SET_INFO);
1147
d7e09d03
PT		 1148struct req_format RQF_SEC_CTX =
1149 DEFINE_REQ_FMT0("SEC_CTX", empty, empty);
1150EXPORT_SYMBOL(RQF_SEC_CTX);
1151
1152struct req_format RQF_MGS_TARGET_REG =
1153 DEFINE_REQ_FMT0("MGS_TARGET_REG", mgs_target_info_only,
30c0aa39 1154 mgs_target_info_only);
d7e09d03
PT		 1155EXPORT_SYMBOL(RQF_MGS_TARGET_REG);
1156
1157struct req_format RQF_MGS_SET_INFO =
1158 DEFINE_REQ_FMT0("MGS_SET_INFO", mgs_set_info,
30c0aa39 1159 mgs_set_info);
d7e09d03
PT		 1160EXPORT_SYMBOL(RQF_MGS_SET_INFO);
1161
1162struct req_format RQF_MGS_CONFIG_READ =
1163 DEFINE_REQ_FMT0("MGS_CONFIG_READ", mgs_config_read_client,
30c0aa39 1164 mgs_config_read_server);
d7e09d03
PT		 1165EXPORT_SYMBOL(RQF_MGS_CONFIG_READ);
1166
1167struct req_format RQF_SEQ_QUERY =
1168 DEFINE_REQ_FMT0("SEQ_QUERY", seq_query_client, seq_query_server);
1169EXPORT_SYMBOL(RQF_SEQ_QUERY);
1170
1171struct req_format RQF_FLD_QUERY =
1172 DEFINE_REQ_FMT0("FLD_QUERY", fld_query_client, fld_query_server);
1173EXPORT_SYMBOL(RQF_FLD_QUERY);
1174
b78c2b9b 1175struct req_format RQF_FLD_READ =
1176 DEFINE_REQ_FMT0("FLD_READ", fld_read_client, fld_read_server);
1177EXPORT_SYMBOL(RQF_FLD_READ);
1178
d7e09d03
PT		 1179struct req_format RQF_LOG_CANCEL =
1180 DEFINE_REQ_FMT0("OBD_LOG_CANCEL", log_cancel_client, empty);
1181EXPORT_SYMBOL(RQF_LOG_CANCEL);
1182
1183struct req_format RQF_MDS_QUOTACHECK =
1184 DEFINE_REQ_FMT0("MDS_QUOTACHECK", quotactl_only, empty);
1185EXPORT_SYMBOL(RQF_MDS_QUOTACHECK);
1186
1187struct req_format RQF_OST_QUOTACHECK =
1188 DEFINE_REQ_FMT0("OST_QUOTACHECK", quotactl_only, empty);
1189EXPORT_SYMBOL(RQF_OST_QUOTACHECK);
1190
1191struct req_format RQF_MDS_QUOTACTL =
1192 DEFINE_REQ_FMT0("MDS_QUOTACTL", quotactl_only, quotactl_only);
1193EXPORT_SYMBOL(RQF_MDS_QUOTACTL);
1194
1195struct req_format RQF_OST_QUOTACTL =
1196 DEFINE_REQ_FMT0("OST_QUOTACTL", quotactl_only, quotactl_only);
1197EXPORT_SYMBOL(RQF_OST_QUOTACTL);
1198
1199struct req_format RQF_QC_CALLBACK =
1200 DEFINE_REQ_FMT0("QC_CALLBACK", quotactl_only, empty);
1201EXPORT_SYMBOL(RQF_QC_CALLBACK);
1202
d7e09d03
PT		 1203struct req_format RQF_MDS_GETSTATUS =
1204 DEFINE_REQ_FMT0("MDS_GETSTATUS", mdt_body_only, mdt_body_capa);
1205EXPORT_SYMBOL(RQF_MDS_GETSTATUS);
1206
1207struct req_format RQF_MDS_STATFS =
1208 DEFINE_REQ_FMT0("MDS_STATFS", empty, obd_statfs_server);
1209EXPORT_SYMBOL(RQF_MDS_STATFS);
1210
1211struct req_format RQF_MDS_SYNC =
1212 DEFINE_REQ_FMT0("MDS_SYNC", mdt_body_capa, mdt_body_only);
1213EXPORT_SYMBOL(RQF_MDS_SYNC);
1214
1215struct req_format RQF_MDS_GETATTR =
1216 DEFINE_REQ_FMT0("MDS_GETATTR", mdt_body_capa, mds_getattr_server);
1217EXPORT_SYMBOL(RQF_MDS_GETATTR);
1218
1219struct req_format RQF_MDS_GETXATTR =
1220 DEFINE_REQ_FMT0("MDS_GETXATTR",
1221 mds_getxattr_client, mds_getxattr_server);
1222EXPORT_SYMBOL(RQF_MDS_GETXATTR);
1223
1224struct req_format RQF_MDS_GETATTR_NAME =
1225 DEFINE_REQ_FMT0("MDS_GETATTR_NAME",
1226 mds_getattr_name_client, mds_getattr_server);
1227EXPORT_SYMBOL(RQF_MDS_GETATTR_NAME);
1228
1229struct req_format RQF_MDS_REINT =
1230 DEFINE_REQ_FMT0("MDS_REINT", mds_reint_client, mdt_body_only);
1231EXPORT_SYMBOL(RQF_MDS_REINT);
1232
1233struct req_format RQF_MDS_REINT_CREATE =
1234 DEFINE_REQ_FMT0("MDS_REINT_CREATE",
1235 mds_reint_create_client, mdt_body_capa);
1236EXPORT_SYMBOL(RQF_MDS_REINT_CREATE);
1237
341f1f0a
FY		 1238struct req_format RQF_MDS_REINT_CREATE_ACL =
1239 DEFINE_REQ_FMT0("MDS_REINT_CREATE_ACL",
1240 mds_reint_create_acl_client, mdt_body_capa);
1241EXPORT_SYMBOL(RQF_MDS_REINT_CREATE_ACL);
d7e09d03
PT		 1242
1243struct req_format RQF_MDS_REINT_CREATE_SLAVE =
1244 DEFINE_REQ_FMT0("MDS_REINT_CREATE_EA",
1245 mds_reint_create_slave_client, mdt_body_capa);
1246EXPORT_SYMBOL(RQF_MDS_REINT_CREATE_SLAVE);
1247
1248struct req_format RQF_MDS_REINT_CREATE_SYM =
1249 DEFINE_REQ_FMT0("MDS_REINT_CREATE_SYM",
1250 mds_reint_create_sym_client, mdt_body_capa);
1251EXPORT_SYMBOL(RQF_MDS_REINT_CREATE_SYM);
1252
1253struct req_format RQF_MDS_REINT_OPEN =
1254 DEFINE_REQ_FMT0("MDS_REINT_OPEN",
1255 mds_reint_open_client, mds_reint_open_server);
1256EXPORT_SYMBOL(RQF_MDS_REINT_OPEN);
1257
1258struct req_format RQF_MDS_REINT_UNLINK =
1259 DEFINE_REQ_FMT0("MDS_REINT_UNLINK", mds_reint_unlink_client,
1260 mds_last_unlink_server);
1261EXPORT_SYMBOL(RQF_MDS_REINT_UNLINK);
1262
1263struct req_format RQF_MDS_REINT_LINK =
1264 DEFINE_REQ_FMT0("MDS_REINT_LINK",
1265 mds_reint_link_client, mdt_body_only);
1266EXPORT_SYMBOL(RQF_MDS_REINT_LINK);
1267
1268struct req_format RQF_MDS_REINT_RENAME =
1269 DEFINE_REQ_FMT0("MDS_REINT_RENAME", mds_reint_rename_client,
1270 mds_last_unlink_server);
1271EXPORT_SYMBOL(RQF_MDS_REINT_RENAME);
1272
1273struct req_format RQF_MDS_REINT_SETATTR =
1274 DEFINE_REQ_FMT0("MDS_REINT_SETATTR",
1275 mds_reint_setattr_client, mds_setattr_server);
1276EXPORT_SYMBOL(RQF_MDS_REINT_SETATTR);
1277
1278struct req_format RQF_MDS_REINT_SETXATTR =
1279 DEFINE_REQ_FMT0("MDS_REINT_SETXATTR",
1280 mds_reint_setxattr_client, mdt_body_only);
1281EXPORT_SYMBOL(RQF_MDS_REINT_SETXATTR);
1282
1283struct req_format RQF_MDS_CONNECT =
1284 DEFINE_REQ_FMT0("MDS_CONNECT",
1285 obd_connect_client, obd_connect_server);
1286EXPORT_SYMBOL(RQF_MDS_CONNECT);
1287
1288struct req_format RQF_MDS_DISCONNECT =
1289 DEFINE_REQ_FMT0("MDS_DISCONNECT", empty, empty);
1290EXPORT_SYMBOL(RQF_MDS_DISCONNECT);
1291
1292struct req_format RQF_MDS_GET_INFO =
1293 DEFINE_REQ_FMT0("MDS_GET_INFO", mds_getinfo_client,
1294 mds_getinfo_server);
1295EXPORT_SYMBOL(RQF_MDS_GET_INFO);
1296
d7e09d03
PT		 1297struct req_format RQF_LDLM_ENQUEUE =
1298 DEFINE_REQ_FMT0("LDLM_ENQUEUE",
1299 ldlm_enqueue_client, ldlm_enqueue_lvb_server);
1300EXPORT_SYMBOL(RQF_LDLM_ENQUEUE);
1301
1302struct req_format RQF_LDLM_ENQUEUE_LVB =
1303 DEFINE_REQ_FMT0("LDLM_ENQUEUE_LVB",
1304 ldlm_enqueue_client, ldlm_enqueue_lvb_server);
1305EXPORT_SYMBOL(RQF_LDLM_ENQUEUE_LVB);
1306
1307struct req_format RQF_LDLM_CONVERT =
1308 DEFINE_REQ_FMT0("LDLM_CONVERT",
1309 ldlm_enqueue_client, ldlm_enqueue_server);
1310EXPORT_SYMBOL(RQF_LDLM_CONVERT);
1311
1312struct req_format RQF_LDLM_CANCEL =
1313 DEFINE_REQ_FMT0("LDLM_CANCEL", ldlm_enqueue_client, empty);
1314EXPORT_SYMBOL(RQF_LDLM_CANCEL);
1315
1316struct req_format RQF_LDLM_CALLBACK =
1317 DEFINE_REQ_FMT0("LDLM_CALLBACK", ldlm_enqueue_client, empty);
1318EXPORT_SYMBOL(RQF_LDLM_CALLBACK);
1319
1320struct req_format RQF_LDLM_CP_CALLBACK =
1321 DEFINE_REQ_FMT0("LDLM_CP_CALLBACK", ldlm_cp_callback_client, empty);
1322EXPORT_SYMBOL(RQF_LDLM_CP_CALLBACK);
1323
1324struct req_format RQF_LDLM_BL_CALLBACK =
1325 DEFINE_REQ_FMT0("LDLM_BL_CALLBACK", ldlm_enqueue_client, empty);
1326EXPORT_SYMBOL(RQF_LDLM_BL_CALLBACK);
1327
1328struct req_format RQF_LDLM_GL_CALLBACK =
1329 DEFINE_REQ_FMT0("LDLM_GL_CALLBACK", ldlm_enqueue_client,
1330 ldlm_gl_callback_server);
1331EXPORT_SYMBOL(RQF_LDLM_GL_CALLBACK);
1332
1333struct req_format RQF_LDLM_GL_DESC_CALLBACK =
1334 DEFINE_REQ_FMT0("LDLM_GL_CALLBACK", ldlm_gl_callback_desc_client,
1335 ldlm_gl_callback_server);
1336EXPORT_SYMBOL(RQF_LDLM_GL_DESC_CALLBACK);
1337
1338struct req_format RQF_LDLM_INTENT_BASIC =
1339 DEFINE_REQ_FMT0("LDLM_INTENT_BASIC",
1340 ldlm_intent_basic_client, ldlm_enqueue_lvb_server);
1341EXPORT_SYMBOL(RQF_LDLM_INTENT_BASIC);
1342
1343struct req_format RQF_LDLM_INTENT =
1344 DEFINE_REQ_FMT0("LDLM_INTENT",
1345 ldlm_intent_client, ldlm_intent_server);
1346EXPORT_SYMBOL(RQF_LDLM_INTENT);
1347
1348struct req_format RQF_LDLM_INTENT_LAYOUT =
1349 DEFINE_REQ_FMT0("LDLM_INTENT_LAYOUT ",
1350 ldlm_intent_layout_client, ldlm_enqueue_lvb_server);
1351EXPORT_SYMBOL(RQF_LDLM_INTENT_LAYOUT);
1352
1353struct req_format RQF_LDLM_INTENT_GETATTR =
1354 DEFINE_REQ_FMT0("LDLM_INTENT_GETATTR",
1355 ldlm_intent_getattr_client, ldlm_intent_getattr_server);
1356EXPORT_SYMBOL(RQF_LDLM_INTENT_GETATTR);
1357
1358struct req_format RQF_LDLM_INTENT_OPEN =
1359 DEFINE_REQ_FMT0("LDLM_INTENT_OPEN",
1360 ldlm_intent_open_client, ldlm_intent_open_server);
1361EXPORT_SYMBOL(RQF_LDLM_INTENT_OPEN);
1362
1363struct req_format RQF_LDLM_INTENT_CREATE =
1364 DEFINE_REQ_FMT0("LDLM_INTENT_CREATE",
1365 ldlm_intent_create_client, ldlm_intent_getattr_server);
1366EXPORT_SYMBOL(RQF_LDLM_INTENT_CREATE);
1367
1368struct req_format RQF_LDLM_INTENT_UNLINK =
1369 DEFINE_REQ_FMT0("LDLM_INTENT_UNLINK",
1370 ldlm_intent_unlink_client, ldlm_intent_server);
1371EXPORT_SYMBOL(RQF_LDLM_INTENT_UNLINK);
1372
7fc1f831
AP		 1373struct req_format RQF_LDLM_INTENT_GETXATTR =
1374 DEFINE_REQ_FMT0("LDLM_INTENT_GETXATTR",
1375 ldlm_intent_getxattr_client,
1376 ldlm_intent_getxattr_server);
1377EXPORT_SYMBOL(RQF_LDLM_INTENT_GETXATTR);
1378
d7e09d03
PT		 1379struct req_format RQF_MDS_CLOSE =
1380 DEFINE_REQ_FMT0("MDS_CLOSE",
1381 mdt_close_client, mds_last_unlink_server);
1382EXPORT_SYMBOL(RQF_MDS_CLOSE);
48d23e61
JX		 1383
1384struct req_format RQF_MDS_RELEASE_CLOSE =
1385 DEFINE_REQ_FMT0("MDS_CLOSE",
1386 mdt_release_close_client, mds_last_unlink_server);
1387EXPORT_SYMBOL(RQF_MDS_RELEASE_CLOSE);
d7e09d03 1388
d7e09d03
PT		 1389struct req_format RQF_MDS_DONE_WRITING =
1390 DEFINE_REQ_FMT0("MDS_DONE_WRITING",
1391 mdt_close_client, mdt_body_only);
1392EXPORT_SYMBOL(RQF_MDS_DONE_WRITING);
1393
1394struct req_format RQF_MDS_READPAGE =
1395 DEFINE_REQ_FMT0("MDS_READPAGE",
1396 mdt_body_capa, mdt_body_only);
1397EXPORT_SYMBOL(RQF_MDS_READPAGE);
1398
1399struct req_format RQF_MDS_HSM_ACTION =
1400 DEFINE_REQ_FMT0("MDS_HSM_ACTION", mdt_body_capa, mdt_hsm_action_server);
1401EXPORT_SYMBOL(RQF_MDS_HSM_ACTION);
1402
1403struct req_format RQF_MDS_HSM_PROGRESS =
1404 DEFINE_REQ_FMT0("MDS_HSM_PROGRESS", mdt_hsm_progress, empty);
1405EXPORT_SYMBOL(RQF_MDS_HSM_PROGRESS);
1406
1407struct req_format RQF_MDS_HSM_CT_REGISTER =
1408 DEFINE_REQ_FMT0("MDS_HSM_CT_REGISTER", mdt_hsm_ct_register, empty);
1409EXPORT_SYMBOL(RQF_MDS_HSM_CT_REGISTER);
1410
1411struct req_format RQF_MDS_HSM_CT_UNREGISTER =
1412 DEFINE_REQ_FMT0("MDS_HSM_CT_UNREGISTER", mdt_hsm_ct_unregister, empty);
1413EXPORT_SYMBOL(RQF_MDS_HSM_CT_UNREGISTER);
1414
1415struct req_format RQF_MDS_HSM_STATE_GET =
1416 DEFINE_REQ_FMT0("MDS_HSM_STATE_GET",
1417 mdt_body_capa, mdt_hsm_state_get_server);
1418EXPORT_SYMBOL(RQF_MDS_HSM_STATE_GET);
1419
1420struct req_format RQF_MDS_HSM_STATE_SET =
1421 DEFINE_REQ_FMT0("MDS_HSM_STATE_SET", mdt_hsm_state_set, empty);
1422EXPORT_SYMBOL(RQF_MDS_HSM_STATE_SET);
1423
1424struct req_format RQF_MDS_HSM_REQUEST =
1425 DEFINE_REQ_FMT0("MDS_HSM_REQUEST", mdt_hsm_request, empty);
1426EXPORT_SYMBOL(RQF_MDS_HSM_REQUEST);
1427
1428struct req_format RQF_MDS_SWAP_LAYOUTS =
1429 DEFINE_REQ_FMT0("MDS_SWAP_LAYOUTS",
1430 mdt_swap_layouts, empty);
1431EXPORT_SYMBOL(RQF_MDS_SWAP_LAYOUTS);
1432
1433/* This is for split */
1434struct req_format RQF_MDS_WRITEPAGE =
1435 DEFINE_REQ_FMT0("MDS_WRITEPAGE",
1436 mdt_body_capa, mdt_body_only);
1437EXPORT_SYMBOL(RQF_MDS_WRITEPAGE);
1438
d7e09d03
PT		 1439struct req_format RQF_LLOG_ORIGIN_HANDLE_CREATE =
1440 DEFINE_REQ_FMT0("LLOG_ORIGIN_HANDLE_CREATE",
1441 llog_origin_handle_create_client, llogd_body_only);
1442EXPORT_SYMBOL(RQF_LLOG_ORIGIN_HANDLE_CREATE);
1443
1444struct req_format RQF_LLOG_ORIGIN_HANDLE_DESTROY =
1445 DEFINE_REQ_FMT0("LLOG_ORIGIN_HANDLE_DESTROY",
1446 llogd_body_only, llogd_body_only);
1447EXPORT_SYMBOL(RQF_LLOG_ORIGIN_HANDLE_DESTROY);
1448
1449struct req_format RQF_LLOG_ORIGIN_HANDLE_NEXT_BLOCK =
1450 DEFINE_REQ_FMT0("LLOG_ORIGIN_HANDLE_NEXT_BLOCK",
1451 llogd_body_only, llog_origin_handle_next_block_server);
1452EXPORT_SYMBOL(RQF_LLOG_ORIGIN_HANDLE_NEXT_BLOCK);
1453
1454struct req_format RQF_LLOG_ORIGIN_HANDLE_PREV_BLOCK =
1455 DEFINE_REQ_FMT0("LLOG_ORIGIN_HANDLE_PREV_BLOCK",
1456 llogd_body_only, llog_origin_handle_next_block_server);
1457EXPORT_SYMBOL(RQF_LLOG_ORIGIN_HANDLE_PREV_BLOCK);
1458
1459struct req_format RQF_LLOG_ORIGIN_HANDLE_READ_HEADER =
1460 DEFINE_REQ_FMT0("LLOG_ORIGIN_HANDLE_READ_HEADER",
1461 llogd_body_only, llog_log_hdr_only);
1462EXPORT_SYMBOL(RQF_LLOG_ORIGIN_HANDLE_READ_HEADER);
1463
1464struct req_format RQF_LLOG_ORIGIN_CONNECT =
1465 DEFINE_REQ_FMT0("LLOG_ORIGIN_CONNECT", llogd_conn_body_only, empty);
1466EXPORT_SYMBOL(RQF_LLOG_ORIGIN_CONNECT);
1467
65f1c781
MP		 1468struct req_format RQF_CONNECT =
1469 DEFINE_REQ_FMT0("CONNECT", obd_connect_client, obd_connect_server);
1470EXPORT_SYMBOL(RQF_CONNECT);
1471
d7e09d03
PT		 1472struct req_format RQF_OST_CONNECT =
1473 DEFINE_REQ_FMT0("OST_CONNECT",
1474 obd_connect_client, obd_connect_server);
1475EXPORT_SYMBOL(RQF_OST_CONNECT);
1476
1477struct req_format RQF_OST_DISCONNECT =
1478 DEFINE_REQ_FMT0("OST_DISCONNECT", empty, empty);
1479EXPORT_SYMBOL(RQF_OST_DISCONNECT);
1480
1481struct req_format RQF_OST_GETATTR =
1482 DEFINE_REQ_FMT0("OST_GETATTR", ost_body_capa, ost_body_only);
1483EXPORT_SYMBOL(RQF_OST_GETATTR);
1484
1485struct req_format RQF_OST_SETATTR =
1486 DEFINE_REQ_FMT0("OST_SETATTR", ost_body_capa, ost_body_only);
1487EXPORT_SYMBOL(RQF_OST_SETATTR);
1488
1489struct req_format RQF_OST_CREATE =
1490 DEFINE_REQ_FMT0("OST_CREATE", ost_body_only, ost_body_only);
1491EXPORT_SYMBOL(RQF_OST_CREATE);
1492
1493struct req_format RQF_OST_PUNCH =
1494 DEFINE_REQ_FMT0("OST_PUNCH", ost_body_capa, ost_body_only);
1495EXPORT_SYMBOL(RQF_OST_PUNCH);
1496
1497struct req_format RQF_OST_SYNC =
1498 DEFINE_REQ_FMT0("OST_SYNC", ost_body_capa, ost_body_only);
1499EXPORT_SYMBOL(RQF_OST_SYNC);
1500
1501struct req_format RQF_OST_DESTROY =
1502 DEFINE_REQ_FMT0("OST_DESTROY", ost_destroy_client, ost_body_only);
1503EXPORT_SYMBOL(RQF_OST_DESTROY);
1504
1505struct req_format RQF_OST_BRW_READ =
1506 DEFINE_REQ_FMT0("OST_BRW_READ", ost_brw_client, ost_brw_read_server);
1507EXPORT_SYMBOL(RQF_OST_BRW_READ);
1508
1509struct req_format RQF_OST_BRW_WRITE =
1510 DEFINE_REQ_FMT0("OST_BRW_WRITE", ost_brw_client, ost_brw_write_server);
1511EXPORT_SYMBOL(RQF_OST_BRW_WRITE);
1512
1513struct req_format RQF_OST_STATFS =
1514 DEFINE_REQ_FMT0("OST_STATFS", empty, obd_statfs_server);
1515EXPORT_SYMBOL(RQF_OST_STATFS);
1516
1517struct req_format RQF_OST_SET_GRANT_INFO =
1518 DEFINE_REQ_FMT0("OST_SET_GRANT_INFO", ost_grant_shrink_client,
30c0aa39 1519 ost_body_only);
d7e09d03
PT		 1520EXPORT_SYMBOL(RQF_OST_SET_GRANT_INFO);
1521
45fe5b13 1522struct req_format RQF_OST_GET_INFO =
d7e09d03 1523 DEFINE_REQ_FMT0("OST_GET_INFO", ost_get_info_generic_client,
30c0aa39 1524 ost_get_info_generic_server);
45fe5b13 1525EXPORT_SYMBOL(RQF_OST_GET_INFO);
d7e09d03
PT		 1526
1527struct req_format RQF_OST_GET_INFO_LAST_ID =
1528 DEFINE_REQ_FMT0("OST_GET_INFO_LAST_ID", ost_get_info_generic_client,
30c0aa39 1529 ost_get_last_id_server);
d7e09d03
PT		 1530EXPORT_SYMBOL(RQF_OST_GET_INFO_LAST_ID);
1531
1532struct req_format RQF_OST_GET_INFO_LAST_FID =
45fe5b13 1533 DEFINE_REQ_FMT0("OST_GET_INFO_LAST_FID", ost_get_last_fid_client,
30c0aa39 1534 ost_get_last_fid_server);
d7e09d03
PT		 1535EXPORT_SYMBOL(RQF_OST_GET_INFO_LAST_FID);
1536
1537struct req_format RQF_OST_SET_INFO_LAST_FID =
1538 DEFINE_REQ_FMT0("OST_SET_INFO_LAST_FID", obd_set_info_client,
30c0aa39 1539 empty);
d7e09d03
PT		 1540EXPORT_SYMBOL(RQF_OST_SET_INFO_LAST_FID);
1541
1542struct req_format RQF_OST_GET_INFO_FIEMAP =
1543 DEFINE_REQ_FMT0("OST_GET_INFO_FIEMAP", ost_get_fiemap_client,
30c0aa39 1544 ost_get_fiemap_server);
d7e09d03
PT		 1545EXPORT_SYMBOL(RQF_OST_GET_INFO_FIEMAP);
1546
1547#if !defined(__REQ_LAYOUT_USER__)
1548
1549/* Convenience macro */
1550#define FMT_FIELD(fmt, i, j) (fmt)->rf_fields[(i)].d[(j)]
1551
1552/**
1553 * Initializes the capsule abstraction by computing and setting the \a rf_idx
1554 * field of RQFs and the \a rmf_offset field of RMFs.
1555 */
1556int req_layout_init(void)
1557{
1558 int i;
1559 int j;
1560 int k;
1561 struct req_format *rf = NULL;
1562
1563 for (i = 0; i < ARRAY_SIZE(req_formats); ++i) {
1564 rf = req_formats[i];
1565 rf->rf_idx = i;
1566 for (j = 0; j < RCL_NR; ++j) {
1567 LASSERT(rf->rf_fields[j].nr <= REQ_MAX_FIELD_NR);
1568 for (k = 0; k < rf->rf_fields[j].nr; ++k) {
1569 struct req_msg_field *field;
1570
1571 field = (typeof(field))rf->rf_fields[j].d[k];
1572 LASSERT(!(field->rmf_flags & RMF_F_STRUCT_ARRAY)
1573 || field->rmf_size > 0);
1574 LASSERT(field->rmf_offset[i][j] == 0);
1575 /*
1576 * k + 1 to detect unused format/field
1577 * combinations.
1578 */
1579 field->rmf_offset[i][j] = k + 1;
1580 }
1581 }
1582 }
1583 return 0;
1584}
1585EXPORT_SYMBOL(req_layout_init);
1586
1587void req_layout_fini(void)
1588{
1589}
1590EXPORT_SYMBOL(req_layout_fini);
1591
1592/**
1593 * Initializes the expected sizes of each RMF in a \a pill (\a rc_area) to -1.
1594 *
1595 * Actual/expected field sizes are set elsewhere in functions in this file:
1596 * req_capsule_init(), req_capsule_server_pack(), req_capsule_set_size() and
1597 * req_capsule_msg_size(). The \a rc_area information is used by.
1598 * ptlrpc_request_set_replen().
1599 */
98e0a288 1600static void req_capsule_init_area(struct req_capsule *pill)
d7e09d03
PT		 1601{
1602 int i;
1603
1604 for (i = 0; i < ARRAY_SIZE(pill->rc_area[RCL_CLIENT]); i++) {
1605 pill->rc_area[RCL_CLIENT][i] = -1;
1606 pill->rc_area[RCL_SERVER][i] = -1;
1607 }
1608}
d7e09d03
PT		 1609
1610/**
1611 * Initialize a pill.
1612 *
1613 * The \a location indicates whether the caller is executing on the client side
1614 * (RCL_CLIENT) or server side (RCL_SERVER)..
1615 */
1616void req_capsule_init(struct req_capsule *pill,
1617 struct ptlrpc_request *req,
1618 enum req_location location)
1619{
1620 LASSERT(location == RCL_SERVER || location == RCL_CLIENT);
1621
1622 /*
1623 * Today all capsules are embedded in ptlrpc_request structs,
1624 * but just in case that ever isn't the case, we don't reach
1625 * into req unless req != NULL and pill is the one embedded in
1626 * the req.
1627 *
1628 * The req->rq_pill_init flag makes it safe to initialize a pill
1629 * twice, which might happen in the OST paths as a result of the
1630 * high-priority RPC queue getting peeked at before ost_handle()
1631 * handles an OST RPC.
1632 */
8b382089 1633 if (req && pill == &req->rq_pill && req->rq_pill_init)
d7e09d03
PT		 1634 return;
1635
ec83e611 1636 memset(pill, 0, sizeof(*pill));
d7e09d03
PT		 1637 pill->rc_req = req;
1638 pill->rc_loc = location;
1639 req_capsule_init_area(pill);
1640
8b382089 1641 if (req && pill == &req->rq_pill)
d7e09d03
PT		 1642 req->rq_pill_init = 1;
1643}
1644EXPORT_SYMBOL(req_capsule_init);
1645
1646void req_capsule_fini(struct req_capsule *pill)
1647{
1648}
1649EXPORT_SYMBOL(req_capsule_fini);
1650
1651static int __req_format_is_sane(const struct req_format *fmt)
1652{
1653 return
1654 0 <= fmt->rf_idx && fmt->rf_idx < ARRAY_SIZE(req_formats) &&
1655 req_formats[fmt->rf_idx] == fmt;
1656}
1657
1658static struct lustre_msg *__req_msg(const struct req_capsule *pill,
1659 enum req_location loc)
1660{
1661 struct ptlrpc_request *req;
1662
1663 req = pill->rc_req;
1664 return loc == RCL_CLIENT ? req->rq_reqmsg : req->rq_repmsg;
1665}
1666
1667/**
1668 * Set the format (\a fmt) of a \a pill; format changes are not allowed here
1669 * (see req_capsule_extend()).
1670 */
1671void req_capsule_set(struct req_capsule *pill, const struct req_format *fmt)
1672{
8b382089 1673 LASSERT(!pill->rc_fmt || pill->rc_fmt == fmt);
d7e09d03
PT		 1674 LASSERT(__req_format_is_sane(fmt));
1675
1676 pill->rc_fmt = fmt;
1677}
1678EXPORT_SYMBOL(req_capsule_set);
1679
1680/**
1681 * Fills in any parts of the \a rc_area of a \a pill that haven't been filled in
1682 * yet.
1683
1684 * \a rc_area is an array of REQ_MAX_FIELD_NR elements, used to store sizes of
1685 * variable-sized fields. The field sizes come from the declared \a rmf_size
1686 * field of a \a pill's \a rc_fmt's RMF's.
1687 */
1688int req_capsule_filled_sizes(struct req_capsule *pill,
d0bfef31 1689 enum req_location loc)
d7e09d03
PT		 1690{
1691 const struct req_format *fmt = pill->rc_fmt;
d0bfef31 1692 int i;
d7e09d03 1693
d7e09d03
PT		 1694 for (i = 0; i < fmt->rf_fields[loc].nr; ++i) {
1695 if (pill->rc_area[loc][i] == -1) {
1696 pill->rc_area[loc][i] =
1697 fmt->rf_fields[loc].d[i]->rmf_size;
1698 if (pill->rc_area[loc][i] == -1) {
1699 /*
1700 * Skip the following fields.
1701 *
1702 * If this LASSERT() trips then you're missing a
1703 * call to req_capsule_set_size().
1704 */
1705 LASSERT(loc != RCL_SERVER);
1706 break;
1707 }
1708 }
1709 }
1710 return i;
1711}
1712EXPORT_SYMBOL(req_capsule_filled_sizes);
1713
1714/**
1715 * Capsule equivalent of lustre_pack_request() and lustre_pack_reply().
1716 *
1717 * This function uses the \a pill's \a rc_area as filled in by
1718 * req_capsule_set_size() or req_capsule_filled_sizes() (the latter is called by
1719 * this function).
1720 */
1721int req_capsule_server_pack(struct req_capsule *pill)
1722{
1723 const struct req_format *fmt;
d0bfef31
CH		 1724 int count;
1725 int rc;
d7e09d03
PT		 1726
1727 LASSERT(pill->rc_loc == RCL_SERVER);
1728 fmt = pill->rc_fmt;
8b382089 1729 LASSERT(fmt);
d7e09d03
PT		 1730
1731 count = req_capsule_filled_sizes(pill, RCL_SERVER);
1732 rc = lustre_pack_reply(pill->rc_req, count,
1733 pill->rc_area[RCL_SERVER], NULL);
1734 if (rc != 0) {
1735 DEBUG_REQ(D_ERROR, pill->rc_req,
30c0aa39
OD		 1736 "Cannot pack %d fields in format `%s': ",
1737 count, fmt->rf_name);
d7e09d03
PT		 1738 }
1739 return rc;
1740}
1741EXPORT_SYMBOL(req_capsule_server_pack);
1742
1743/**
1744 * Returns the PTLRPC request or reply (\a loc) buffer offset of a \a pill
1745 * corresponding to the given RMF (\a field).
1746 */
1747static int __req_capsule_offset(const struct req_capsule *pill,
1748 const struct req_msg_field *field,
1749 enum req_location loc)
1750{
1751 int offset;
1752
1753 offset = field->rmf_offset[pill->rc_fmt->rf_idx][loc];
30c0aa39
OD		 1754 LASSERTF(offset > 0, "%s:%s, off=%d, loc=%d\n", pill->rc_fmt->rf_name,
1755 field->rmf_name, offset, loc);
5dd70706 1756 offset--;
d7e09d03
PT		 1757
1758 LASSERT(0 <= offset && offset < REQ_MAX_FIELD_NR);
1759 return offset;
1760}
1761
1762/**
1763 * Helper for __req_capsule_get(); swabs value / array of values and/or dumps
1764 * them if desired.
1765 */
1766static
1767void
1768swabber_dumper_helper(struct req_capsule *pill,
1769 const struct req_msg_field *field,
1770 enum req_location loc,
1771 int offset,
3949015e 1772 void *value, int len, int dump, void (*swabber)(void *))
d7e09d03 1773{
d0bfef31
CH		 1774 void *p;
1775 int i;
1776 int n;
1777 int do_swab;
1778 int inout = loc == RCL_CLIENT;
d7e09d03
PT		 1779
1780 swabber = swabber ?: field->rmf_swabber;
1781
1782 if (ptlrpc_buf_need_swab(pill->rc_req, inout, offset) &&
8b382089 1783 swabber && value)
d7e09d03
PT		 1784 do_swab = 1;
1785 else
1786 do_swab = 0;
1787
358bd68c
MN		 1788 if (!field->rmf_dumper)
1789 dump = 0;
1790
d7e09d03 1791 if (!(field->rmf_flags & RMF_F_STRUCT_ARRAY)) {
358bd68c 1792 if (dump) {
d7e09d03
PT		 1793 CDEBUG(D_RPCTRACE, "Dump of %sfield %s follows\n",
1794 do_swab ? "unswabbed " : "", field->rmf_name);
1795 field->rmf_dumper(value);
1796 }
1797 if (!do_swab)
1798 return;
1799 swabber(value);
1800 ptlrpc_buf_set_swabbed(pill->rc_req, inout, offset);
a739735c 1801 if (dump && field->rmf_dumper) {
2d00bd17
JP		 1802 CDEBUG(D_RPCTRACE, "Dump of swabbed field %s follows\n",
1803 field->rmf_name);
d7e09d03
PT		 1804 field->rmf_dumper(value);
1805 }
1806
1807 return;
1808 }
1809
1810 /*
1811 * We're swabbing an array; swabber() swabs a single array element, so
1812 * swab every element.
1813 */
1814 LASSERT((len % field->rmf_size) == 0);
1815 for (p = value, i = 0, n = len / field->rmf_size;
1816 i < n;
1817 i++, p += field->rmf_size) {
358bd68c 1818 if (dump) {
2d00bd17 1819 CDEBUG(D_RPCTRACE, "Dump of %sarray field %s, element %d follows\n",
d7e09d03
PT		 1820 do_swab ? "unswabbed " : "", field->rmf_name, i);
1821 field->rmf_dumper(p);
1822 }
1823 if (!do_swab)
1824 continue;
1825 swabber(p);
358bd68c 1826 if (dump) {
2d00bd17
JP		 1827 CDEBUG(D_RPCTRACE, "Dump of swabbed array field %s, element %d follows\n",
1828 field->rmf_name, i);
d7e09d03
PT		 1829 field->rmf_dumper(value);
1830 }
1831 }
1832 if (do_swab)
1833 ptlrpc_buf_set_swabbed(pill->rc_req, inout, offset);
1834}
1835
1836/**
1837 * Returns the pointer to a PTLRPC request or reply (\a loc) buffer of a \a pill
1838 * corresponding to the given RMF (\a field).
1839 *
1840 * The buffer will be swabbed using the given \a swabber. If \a swabber == NULL
1841 * then the \a rmf_swabber from the RMF will be used. Soon there will be no
1842 * calls to __req_capsule_get() with a non-NULL \a swabber; \a swabber will then
1843 * be removed. Fields with the \a RMF_F_STRUCT_ARRAY flag set will have each
1844 * element of the array swabbed.
1845 */
1846static void *__req_capsule_get(struct req_capsule *pill,
1847 const struct req_msg_field *field,
1848 enum req_location loc,
3949015e 1849 void (*swabber)(void *),
d7e09d03
PT		 1850 int dump)
1851{
1852 const struct req_format *fmt;
d0bfef31
CH		 1853 struct lustre_msg *msg;
1854 void *value;
1855 int len;
1856 int offset;
d7e09d03
PT		 1857
1858 void *(*getter)(struct lustre_msg *m, int n, int minlen);
1859
1860 static const char *rcl_names[RCL_NR] = {
1861 [RCL_CLIENT] = "client",
1862 [RCL_SERVER] = "server"
1863 };
1864
d7e09d03 1865 fmt = pill->rc_fmt;
8b382089 1866 LASSERT(fmt);
d7e09d03
PT		 1867 LASSERT(fmt != LP_POISON);
1868 LASSERT(__req_format_is_sane(fmt));
1869
1870 offset = __req_capsule_offset(pill, field, loc);
1871
1872 msg = __req_msg(pill, loc);
8b382089 1873 LASSERT(msg);
d7e09d03
PT		 1874
1875 getter = (field->rmf_flags & RMF_F_STRING) ?
1876 (typeof(getter))lustre_msg_string : lustre_msg_buf;
1877
1878 if (field->rmf_flags & RMF_F_STRUCT_ARRAY) {
1879 /*
1880 * We've already asserted that field->rmf_size > 0 in
1881 * req_layout_init().
1882 */
1883 len = lustre_msg_buflen(msg, offset);
1884 if ((len % field->rmf_size) != 0) {
2d00bd17 1885 CERROR("%s: array field size mismatch %d modulo %d != 0 (%d)\n",
d7e09d03
PT		 1886 field->rmf_name, len, field->rmf_size, loc);
1887 return NULL;
1888 }
1889 } else if (pill->rc_area[loc][offset] != -1) {
1890 len = pill->rc_area[loc][offset];
1891 } else {
1892 len = max(field->rmf_size, 0);
1893 }
1894 value = getter(msg, offset, len);
1895
8b382089 1896 if (!value) {
d7e09d03 1897 DEBUG_REQ(D_ERROR, pill->rc_req,
2d00bd17 1898 "Wrong buffer for field `%s' (%d of %d) in format `%s': %d vs. %d (%s)\n",
d7e09d03
PT		 1899 field->rmf_name, offset, lustre_msg_bufcount(msg),
1900 fmt->rf_name, lustre_msg_buflen(msg, offset), len,
1901 rcl_names[loc]);
1902 } else {
1903 swabber_dumper_helper(pill, field, loc, offset, value, len,
1904 dump, swabber);
1905 }
1906
1907 return value;
1908}
1909
d7e09d03
PT		 1910/**
1911 * Trivial wrapper around __req_capsule_get(), that returns the PTLRPC request
1912 * buffer corresponding to the given RMF (\a field) of a \a pill.
1913 */
1914void *req_capsule_client_get(struct req_capsule *pill,
1915 const struct req_msg_field *field)
1916{
1917 return __req_capsule_get(pill, field, RCL_CLIENT, NULL, 0);
1918}
1919EXPORT_SYMBOL(req_capsule_client_get);
1920
1921/**
1922 * Same as req_capsule_client_get(), but with a \a swabber argument.
1923 *
1924 * Currently unused; will be removed when req_capsule_server_swab_get() is
1925 * unused too.
1926 */
1927void *req_capsule_client_swab_get(struct req_capsule *pill,
1928 const struct req_msg_field *field,
1929 void *swabber)
1930{
1931 return __req_capsule_get(pill, field, RCL_CLIENT, swabber, 0);
1932}
1933EXPORT_SYMBOL(req_capsule_client_swab_get);
1934
1935/**
1936 * Utility that combines req_capsule_set_size() and req_capsule_client_get().
1937 *
1938 * First the \a pill's request \a field's size is set (\a rc_area) using
1939 * req_capsule_set_size() with the given \a len. Then the actual buffer is
1940 * returned.
1941 */
1942void *req_capsule_client_sized_get(struct req_capsule *pill,
1943 const struct req_msg_field *field,
1944 int len)
1945{
1946 req_capsule_set_size(pill, field, RCL_CLIENT, len);
1947 return __req_capsule_get(pill, field, RCL_CLIENT, NULL, 0);
1948}
1949EXPORT_SYMBOL(req_capsule_client_sized_get);
1950
1951/**
1952 * Trivial wrapper around __req_capsule_get(), that returns the PTLRPC reply
1953 * buffer corresponding to the given RMF (\a field) of a \a pill.
1954 */
1955void *req_capsule_server_get(struct req_capsule *pill,
1956 const struct req_msg_field *field)
1957{
1958 return __req_capsule_get(pill, field, RCL_SERVER, NULL, 0);
1959}
1960EXPORT_SYMBOL(req_capsule_server_get);
1961
1962/**
1963 * Same as req_capsule_server_get(), but with a \a swabber argument.
1964 *
1965 * Ideally all swabbing should be done pursuant to RMF definitions, with no
1966 * swabbing done outside this capsule abstraction.
1967 */
1968void *req_capsule_server_swab_get(struct req_capsule *pill,
1969 const struct req_msg_field *field,
1970 void *swabber)
1971{
1972 return __req_capsule_get(pill, field, RCL_SERVER, swabber, 0);
1973}
1974EXPORT_SYMBOL(req_capsule_server_swab_get);
1975
1976/**
1977 * Utility that combines req_capsule_set_size() and req_capsule_server_get().
1978 *
1979 * First the \a pill's request \a field's size is set (\a rc_area) using
1980 * req_capsule_set_size() with the given \a len. Then the actual buffer is
1981 * returned.
1982 */
1983void *req_capsule_server_sized_get(struct req_capsule *pill,
1984 const struct req_msg_field *field,
1985 int len)
1986{
1987 req_capsule_set_size(pill, field, RCL_SERVER, len);
1988 return __req_capsule_get(pill, field, RCL_SERVER, NULL, 0);
1989}
1990EXPORT_SYMBOL(req_capsule_server_sized_get);
1991
1992void *req_capsule_server_sized_swab_get(struct req_capsule *pill,
1993 const struct req_msg_field *field,
1994 int len, void *swabber)
1995{
1996 req_capsule_set_size(pill, field, RCL_SERVER, len);
1997 return __req_capsule_get(pill, field, RCL_SERVER, swabber, 0);
1998}
1999EXPORT_SYMBOL(req_capsule_server_sized_swab_get);
2000
d7e09d03
PT		 2001/**
2002 * Set the size of the PTLRPC request/reply (\a loc) buffer for the given \a
2003 * field of the given \a pill.
2004 *
2005 * This function must be used when constructing variable sized fields of a
2006 * request or reply.
2007 */
2008void req_capsule_set_size(struct req_capsule *pill,
2009 const struct req_msg_field *field,
2010 enum req_location loc, int size)
2011{
2012 LASSERT(loc == RCL_SERVER || loc == RCL_CLIENT);
2013
2014 if ((size != field->rmf_size) &&
2015 (field->rmf_size != -1) &&
2016 !(field->rmf_flags & RMF_F_NO_SIZE_CHECK) &&
2017 (size > 0)) {
2018 if ((field->rmf_flags & RMF_F_STRUCT_ARRAY) &&
2019 (size % field->rmf_size != 0)) {
2d00bd17 2020 CERROR("%s: array field size mismatch %d %% %d != 0 (%d)\n",
d7e09d03
PT		 2021 field->rmf_name, size, field->rmf_size, loc);
2022 LBUG();
2023 } else if (!(field->rmf_flags & RMF_F_STRUCT_ARRAY) &&
2024 size < field->rmf_size) {
2025 CERROR("%s: field size mismatch %d != %d (%d)\n",
2026 field->rmf_name, size, field->rmf_size, loc);
2027 LBUG();
2028 }
2029 }
2030
2031 pill->rc_area[loc][__req_capsule_offset(pill, field, loc)] = size;
2032}
2033EXPORT_SYMBOL(req_capsule_set_size);
2034
2035/**
2036 * Return the actual PTLRPC buffer length of a request or reply (\a loc)
2037 * for the given \a pill's given \a field.
2038 *
2039 * NB: this function doesn't correspond with req_capsule_set_size(), which
2040 * actually sets the size in pill.rc_area[loc][offset], but this function
2041 * returns the message buflen[offset], maybe we should use another name.
2042 */
2043int req_capsule_get_size(const struct req_capsule *pill,
2044 const struct req_msg_field *field,
2045 enum req_location loc)
2046{
2047 LASSERT(loc == RCL_SERVER || loc == RCL_CLIENT);
2048
2049 return lustre_msg_buflen(__req_msg(pill, loc),
2050 __req_capsule_offset(pill, field, loc));
2051}
2052EXPORT_SYMBOL(req_capsule_get_size);
2053
2054/**
2055 * Wrapper around lustre_msg_size() that returns the PTLRPC size needed for the
2056 * given \a pill's request or reply (\a loc) given the field size recorded in
2057 * the \a pill's rc_area.
2058 *
2059 * See also req_capsule_set_size().
2060 */
2061int req_capsule_msg_size(struct req_capsule *pill, enum req_location loc)
2062{
2063 return lustre_msg_size(pill->rc_req->rq_import->imp_msg_magic,
2064 pill->rc_fmt->rf_fields[loc].nr,
2065 pill->rc_area[loc]);
2066}
2067
2068/**
2069 * While req_capsule_msg_size() computes the size of a PTLRPC request or reply
2070 * (\a loc) given a \a pill's \a rc_area, this function computes the size of a
2071 * PTLRPC request or reply given only an RQF (\a fmt).
2072 *
2073 * This function should not be used for formats which contain variable size
2074 * fields.
2075 */
2076int req_capsule_fmt_size(__u32 magic, const struct req_format *fmt,
2077 enum req_location loc)
2078{
2079 int size, i = 0;
2080
2081 /*
2082 * This function should probably LASSERT() that fmt has no fields with
2083 * RMF_F_STRUCT_ARRAY in rmf_flags, since we can't know here how many
2084 * elements in the array there will ultimately be, but then, we could
2085 * assume that there will be at least one element, and that's just what
2086 * we do.
2087 */
2088 size = lustre_msg_hdr_size(magic, fmt->rf_fields[loc].nr);
2089 if (size < 0)
2090 return size;
2091
2092 for (; i < fmt->rf_fields[loc].nr; ++i)
2093 if (fmt->rf_fields[loc].d[i]->rmf_size != -1)
2094 size += cfs_size_round(fmt->rf_fields[loc].d[i]->
2095 rmf_size);
2096 return size;
2097}
2098
2099/**
2100 * Changes the format of an RPC.
2101 *
2102 * The pill must already have been initialized, which means that it already has
2103 * a request format. The new format \a fmt must be an extension of the pill's
2104 * old format. Specifically: the new format must have as many request and reply
2105 * fields as the old one, and all fields shared by the old and new format must
2106 * be at least as large in the new format.
2107 *
2108 * The new format's fields may be of different "type" than the old format, but
2109 * only for fields that are "opaque" blobs: fields which have a) have no
2110 * \a rmf_swabber, b) \a rmf_flags == 0 or RMF_F_NO_SIZE_CHECK, and c) \a
2111 * rmf_size == -1 or \a rmf_flags == RMF_F_NO_SIZE_CHECK. For example,
2112 * OBD_SET_INFO has a key field and an opaque value field that gets interpreted
2113 * according to the key field. When the value, according to the key, contains a
2114 * structure (or array thereof) to be swabbed, the format should be changed to
2115 * one where the value field has \a rmf_size/rmf_flags/rmf_swabber set
2116 * accordingly.
2117 */
2118void req_capsule_extend(struct req_capsule *pill, const struct req_format *fmt)
2119{
2120 int i;
2121 int j;
2122
2123 const struct req_format *old;
2124
8b382089 2125 LASSERT(pill->rc_fmt);
d7e09d03
PT		 2126 LASSERT(__req_format_is_sane(fmt));
2127
2128 old = pill->rc_fmt;
2129 /*
2130 * Sanity checking...
2131 */
2132 for (i = 0; i < RCL_NR; ++i) {
2133 LASSERT(fmt->rf_fields[i].nr >= old->rf_fields[i].nr);
2134 for (j = 0; j < old->rf_fields[i].nr - 1; ++j) {
2135 const struct req_msg_field *ofield = FMT_FIELD(old, i, j);
2136
2137 /* "opaque" fields can be transmogrified */
8b382089 2138 if (!ofield->rmf_swabber &&
d7e09d03
PT		 2139 (ofield->rmf_flags & ~RMF_F_NO_SIZE_CHECK) == 0 &&
2140 (ofield->rmf_size == -1 ||
2141 ofield->rmf_flags == RMF_F_NO_SIZE_CHECK))
2142 continue;
2143 LASSERT(FMT_FIELD(fmt, i, j) == FMT_FIELD(old, i, j));
2144 }
2145 /*
2146 * Last field in old format can be shorter than in new.
2147 */
2148 LASSERT(FMT_FIELD(fmt, i, j)->rmf_size >=
2149 FMT_FIELD(old, i, j)->rmf_size);
2150 }
2151
2152 pill->rc_fmt = fmt;
2153}
2154EXPORT_SYMBOL(req_capsule_extend);
2155
2156/**
2157 * This function returns a non-zero value if the given \a field is present in
2158 * the format (\a rc_fmt) of \a pill's PTLRPC request or reply (\a loc), else it
2159 * returns 0.
2160 */
2161int req_capsule_has_field(const struct req_capsule *pill,
2162 const struct req_msg_field *field,
2163 enum req_location loc)
2164{
2165 LASSERT(loc == RCL_SERVER || loc == RCL_CLIENT);
2166
2167 return field->rmf_offset[pill->rc_fmt->rf_idx][loc];
2168}
2169EXPORT_SYMBOL(req_capsule_has_field);
2170
2171/**
2172 * Returns a non-zero value if the given \a field is present in the given \a
2173 * pill's PTLRPC request or reply (\a loc), else it returns 0.
2174 */
98e0a288
SB		 2175static int req_capsule_field_present(const struct req_capsule *pill,
2176 const struct req_msg_field *field,
2177 enum req_location loc)
d7e09d03
PT		 2178{
2179 int offset;
2180
2181 LASSERT(loc == RCL_SERVER || loc == RCL_CLIENT);
2182 LASSERT(req_capsule_has_field(pill, field, loc));
2183
2184 offset = __req_capsule_offset(pill, field, loc);
2185 return lustre_msg_bufcount(__req_msg(pill, loc)) > offset;
2186}
d7e09d03
PT		 2187
2188/**
2189 * This function shrinks the size of the _buffer_ of the \a pill's PTLRPC
2190 * request or reply (\a loc).
2191 *
2192 * This is not the opposite of req_capsule_extend().
2193 */
2194void req_capsule_shrink(struct req_capsule *pill,
2195 const struct req_msg_field *field,
2196 unsigned int newlen,
2197 enum req_location loc)
2198{
2199 const struct req_format *fmt;
d0bfef31
CH		 2200 struct lustre_msg *msg;
2201 int len;
2202 int offset;
d7e09d03
PT		 2203
2204 fmt = pill->rc_fmt;
8b382089 2205 LASSERT(fmt);
d7e09d03
PT		 2206 LASSERT(__req_format_is_sane(fmt));
2207 LASSERT(req_capsule_has_field(pill, field, loc));
2208 LASSERT(req_capsule_field_present(pill, field, loc));
2209
2210 offset = __req_capsule_offset(pill, field, loc);
2211
2212 msg = __req_msg(pill, loc);
2213 len = lustre_msg_buflen(msg, offset);
2214 LASSERTF(newlen <= len, "%s:%s, oldlen=%d, newlen=%d\n",
30c0aa39 2215 fmt->rf_name, field->rmf_name, len, newlen);
d7e09d03
PT		 2216
2217 if (loc == RCL_CLIENT)
2218 pill->rc_req->rq_reqlen = lustre_shrink_msg(msg, offset, newlen,
2219 1);
2220 else
2221 pill->rc_req->rq_replen = lustre_shrink_msg(msg, offset, newlen,
2222 1);
2223}
2224EXPORT_SYMBOL(req_capsule_shrink);
2225
d7e09d03
PT		 2226/* __REQ_LAYOUT_USER__ */
2227#endif
Linux kernel - Deliverables
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