4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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.
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).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2011, 2015, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
32 * lustre/include/lustre/lustre_idl.h
34 * Lustre wire protocol definitions.
37 /** \defgroup lustreidl lustreidl
39 * Lustre wire protocol definitions.
41 * ALL structs passing over the wire should be declared here. Structs
42 * that are used in interfaces with userspace should go in lustre_user.h.
44 * All structs being declared here should be built from simple fixed-size
45 * types (__u8, __u16, __u32, __u64) or be built from other types or
46 * structs also declared in this file. Similarly, all flags and magic
47 * values in those structs should also be declared here. This ensures
48 * that the Lustre wire protocol is not influenced by external dependencies.
50 * The only other acceptable items in this file are VERY SIMPLE accessor
51 * functions to avoid callers grubbing inside the structures. Nothing that
52 * depends on external functions or definitions should be in here.
54 * Structs must be properly aligned to put 64-bit values on an 8-byte
55 * boundary. Any structs being added here must also be added to
56 * utils/wirecheck.c and "make newwiretest" run to regenerate the
57 * utils/wiretest.c sources. This allows us to verify that wire structs
58 * have the proper alignment/size on all architectures.
60 * DO NOT CHANGE any of the structs, flags, values declared here and used
61 * in released Lustre versions. Some structs may have padding fields that
62 * can be used. Some structs might allow addition at the end (verify this
63 * in the code to ensure that new/old clients that see this larger struct
64 * do not fail, otherwise you need to implement protocol compatibility).
69 #ifndef _LUSTRE_IDL_H_
70 #define _LUSTRE_IDL_H_
72 #include "../../../include/linux/libcfs/libcfs.h"
73 #include "../../../include/linux/lnet/types.h"
75 /* Defn's shared with user-space. */
76 #include "lustre_user.h"
77 #include "lustre_errno.h"
78 #include "../lustre_ver.h"
83 /* FOO_REQUEST_PORTAL is for incoming requests on the FOO
84 * FOO_REPLY_PORTAL is for incoming replies on the FOO
85 * FOO_BULK_PORTAL is for incoming bulk on the FOO
88 /* Lustre service names are following the format
89 * service name + MDT + seq name
91 #define LUSTRE_MDT_MAXNAMELEN 80
93 #define CONNMGR_REQUEST_PORTAL 1
94 #define CONNMGR_REPLY_PORTAL 2
95 /*#define OSC_REQUEST_PORTAL 3 */
96 #define OSC_REPLY_PORTAL 4
97 /*#define OSC_BULK_PORTAL 5 */
98 #define OST_IO_PORTAL 6
99 #define OST_CREATE_PORTAL 7
100 #define OST_BULK_PORTAL 8
101 /*#define MDC_REQUEST_PORTAL 9 */
102 #define MDC_REPLY_PORTAL 10
103 /*#define MDC_BULK_PORTAL 11 */
104 #define MDS_REQUEST_PORTAL 12
105 /*#define MDS_REPLY_PORTAL 13 */
106 #define MDS_BULK_PORTAL 14
107 #define LDLM_CB_REQUEST_PORTAL 15
108 #define LDLM_CB_REPLY_PORTAL 16
109 #define LDLM_CANCEL_REQUEST_PORTAL 17
110 #define LDLM_CANCEL_REPLY_PORTAL 18
111 /*#define PTLBD_REQUEST_PORTAL 19 */
112 /*#define PTLBD_REPLY_PORTAL 20 */
113 /*#define PTLBD_BULK_PORTAL 21 */
114 #define MDS_SETATTR_PORTAL 22
115 #define MDS_READPAGE_PORTAL 23
116 #define OUT_PORTAL 24
118 #define MGC_REPLY_PORTAL 25
119 #define MGS_REQUEST_PORTAL 26
120 #define MGS_REPLY_PORTAL 27
121 #define OST_REQUEST_PORTAL 28
122 #define FLD_REQUEST_PORTAL 29
123 #define SEQ_METADATA_PORTAL 30
124 #define SEQ_DATA_PORTAL 31
125 #define SEQ_CONTROLLER_PORTAL 32
126 #define MGS_BULK_PORTAL 33
128 /* Portal 63 is reserved for the Cray Inc DVS - nic@cray.com, roe@cray.com,
133 #define PTL_RPC_MSG_REQUEST 4711
134 #define PTL_RPC_MSG_ERR 4712
135 #define PTL_RPC_MSG_REPLY 4713
137 /* DON'T use swabbed values of MAGIC as magic! */
138 #define LUSTRE_MSG_MAGIC_V2 0x0BD00BD3
139 #define LUSTRE_MSG_MAGIC_V2_SWABBED 0xD30BD00B
141 #define LUSTRE_MSG_MAGIC LUSTRE_MSG_MAGIC_V2
143 #define PTLRPC_MSG_VERSION 0x00000003
144 #define LUSTRE_VERSION_MASK 0xffff0000
145 #define LUSTRE_OBD_VERSION 0x00010000
146 #define LUSTRE_MDS_VERSION 0x00020000
147 #define LUSTRE_OST_VERSION 0x00030000
148 #define LUSTRE_DLM_VERSION 0x00040000
149 #define LUSTRE_LOG_VERSION 0x00050000
150 #define LUSTRE_MGS_VERSION 0x00060000
153 * Describes a range of sequence, lsr_start is included but lsr_end is
155 * Same structure is used in fld module where lsr_index field holds mdt id
158 struct lu_seq_range
{
165 struct lu_seq_range_array
{
168 struct lu_seq_range lsra_lsr
[0];
171 #define LU_SEQ_RANGE_MDT 0x0
172 #define LU_SEQ_RANGE_OST 0x1
173 #define LU_SEQ_RANGE_ANY 0x3
175 #define LU_SEQ_RANGE_MASK 0x3
177 /** \defgroup lu_fid lu_fid
182 * Flags for lustre_mdt_attrs::lma_compat and lustre_mdt_attrs::lma_incompat.
183 * Deprecated since HSM and SOM attributes are now stored in separate on-disk
187 LMAC_HSM
= 0x00000001,
188 /* LMAC_SOM = 0x00000002, obsolete since 2.8.0 */
189 LMAC_NOT_IN_OI
= 0x00000004, /* the object does NOT need OI mapping */
190 LMAC_FID_ON_OST
= 0x00000008, /* For OST-object, its OI mapping is
191 * under /O/<seq>/d<x>.
196 * Masks for all features that should be supported by a Lustre version to
197 * access a specific file.
198 * This information is stored in lustre_mdt_attrs::lma_incompat.
201 LMAI_RELEASED
= 0x00000001, /* file is released */
202 LMAI_AGENT
= 0x00000002, /* agent inode */
203 LMAI_REMOTE_PARENT
= 0x00000004, /* the parent of the object
204 * is on the remote MDT
208 #define LMA_INCOMPAT_SUPP (LMAI_AGENT | LMAI_REMOTE_PARENT)
214 /** LASTID file has zero OID */
215 LUSTRE_FID_LASTID_OID
= 0UL,
216 /** initial fid id value */
217 LUSTRE_FID_INIT_OID
= 1UL
220 /** returns fid object sequence */
221 static inline __u64
fid_seq(const struct lu_fid
*fid
)
226 /** returns fid object id */
227 static inline __u32
fid_oid(const struct lu_fid
*fid
)
232 /** returns fid object version */
233 static inline __u32
fid_ver(const struct lu_fid
*fid
)
238 static inline void fid_zero(struct lu_fid
*fid
)
240 memset(fid
, 0, sizeof(*fid
));
243 static inline __u64
fid_ver_oid(const struct lu_fid
*fid
)
245 return ((__u64
)fid_ver(fid
) << 32 | fid_oid(fid
));
248 /* copytool uses a 32b bitmask field to encode archive-Ids during register
250 * archive num = 0 => all
251 * archive num from 1 to 32
253 #define LL_HSM_MAX_ARCHIVE (sizeof(__u32) * 8)
256 * Note that reserved SEQ numbers below 12 will conflict with ldiskfs
257 * inodes in the IGIF namespace, so these reserved SEQ numbers can be
258 * used for other purposes and not risk collisions with existing inodes.
260 * Different FID Format
261 * http://wiki.old.lustre.org/index.php/Architecture_-_Interoperability_fids_zfs
264 FID_SEQ_OST_MDT0
= 0,
265 FID_SEQ_LLOG
= 1, /* unnamed llogs */
267 FID_SEQ_OST_MDT1
= 3,
268 FID_SEQ_OST_MAX
= 9, /* Max MDT count before OST_on_FID */
269 FID_SEQ_LLOG_NAME
= 10, /* named llogs */
272 FID_SEQ_IGIF_MAX
= 0x0ffffffffULL
,
273 FID_SEQ_IDIF
= 0x100000000ULL
,
274 FID_SEQ_IDIF_MAX
= 0x1ffffffffULL
,
275 /* Normal FID sequence starts from this value, i.e. 1<<33 */
276 FID_SEQ_START
= 0x200000000ULL
,
277 /* sequence for local pre-defined FIDs listed in local_oid */
278 FID_SEQ_LOCAL_FILE
= 0x200000001ULL
,
279 FID_SEQ_DOT_LUSTRE
= 0x200000002ULL
,
280 /* sequence is used for local named objects FIDs generated
281 * by local_object_storage library
283 FID_SEQ_LOCAL_NAME
= 0x200000003ULL
,
284 /* Because current FLD will only cache the fid sequence, instead
285 * of oid on the client side, if the FID needs to be exposed to
286 * clients sides, it needs to make sure all of fids under one
287 * sequence will be located in one MDT.
289 FID_SEQ_SPECIAL
= 0x200000004ULL
,
290 FID_SEQ_QUOTA
= 0x200000005ULL
,
291 FID_SEQ_QUOTA_GLB
= 0x200000006ULL
,
292 FID_SEQ_ROOT
= 0x200000007ULL
, /* Located on MDT0 */
293 FID_SEQ_NORMAL
= 0x200000400ULL
,
294 FID_SEQ_LOV_DEFAULT
= 0xffffffffffffffffULL
297 #define OBIF_OID_MAX_BITS 32
298 #define OBIF_MAX_OID (1ULL << OBIF_OID_MAX_BITS)
299 #define OBIF_OID_MASK ((1ULL << OBIF_OID_MAX_BITS) - 1)
300 #define IDIF_OID_MAX_BITS 48
301 #define IDIF_MAX_OID (1ULL << IDIF_OID_MAX_BITS)
302 #define IDIF_OID_MASK ((1ULL << IDIF_OID_MAX_BITS) - 1)
304 /** OID for FID_SEQ_SPECIAL */
306 /* Big Filesystem Lock to serialize rename operations */
307 FID_OID_SPECIAL_BFL
= 1UL,
310 /** OID for FID_SEQ_DOT_LUSTRE */
311 enum dot_lustre_oid
{
312 FID_OID_DOT_LUSTRE
= 1UL,
313 FID_OID_DOT_LUSTRE_OBF
= 2UL,
316 static inline bool fid_seq_is_mdt0(__u64 seq
)
318 return (seq
== FID_SEQ_OST_MDT0
);
321 static inline bool fid_seq_is_mdt(__u64 seq
)
323 return seq
== FID_SEQ_OST_MDT0
|| seq
>= FID_SEQ_NORMAL
;
326 static inline bool fid_seq_is_echo(__u64 seq
)
328 return (seq
== FID_SEQ_ECHO
);
331 static inline bool fid_is_echo(const struct lu_fid
*fid
)
333 return fid_seq_is_echo(fid_seq(fid
));
336 static inline bool fid_seq_is_llog(__u64 seq
)
338 return (seq
== FID_SEQ_LLOG
);
341 static inline bool fid_is_llog(const struct lu_fid
*fid
)
343 /* file with OID == 0 is not llog but contains last oid */
344 return fid_seq_is_llog(fid_seq(fid
)) && fid_oid(fid
) > 0;
347 static inline bool fid_seq_is_rsvd(__u64 seq
)
349 return (seq
> FID_SEQ_OST_MDT0
&& seq
<= FID_SEQ_RSVD
);
352 static inline bool fid_seq_is_special(__u64 seq
)
354 return seq
== FID_SEQ_SPECIAL
;
357 static inline bool fid_seq_is_local_file(__u64 seq
)
359 return seq
== FID_SEQ_LOCAL_FILE
||
360 seq
== FID_SEQ_LOCAL_NAME
;
363 static inline bool fid_seq_is_root(__u64 seq
)
365 return seq
== FID_SEQ_ROOT
;
368 static inline bool fid_seq_is_dot(__u64 seq
)
370 return seq
== FID_SEQ_DOT_LUSTRE
;
373 static inline bool fid_seq_is_default(__u64 seq
)
375 return seq
== FID_SEQ_LOV_DEFAULT
;
378 static inline bool fid_is_mdt0(const struct lu_fid
*fid
)
380 return fid_seq_is_mdt0(fid_seq(fid
));
383 static inline void lu_root_fid(struct lu_fid
*fid
)
385 fid
->f_seq
= FID_SEQ_ROOT
;
391 * Check if a fid is igif or not.
392 * \param fid the fid to be tested.
393 * \return true if the fid is a igif; otherwise false.
395 static inline bool fid_seq_is_igif(__u64 seq
)
397 return seq
>= FID_SEQ_IGIF
&& seq
<= FID_SEQ_IGIF_MAX
;
400 static inline bool fid_is_igif(const struct lu_fid
*fid
)
402 return fid_seq_is_igif(fid_seq(fid
));
406 * Check if a fid is idif or not.
407 * \param fid the fid to be tested.
408 * \return true if the fid is a idif; otherwise false.
410 static inline bool fid_seq_is_idif(__u64 seq
)
412 return seq
>= FID_SEQ_IDIF
&& seq
<= FID_SEQ_IDIF_MAX
;
415 static inline bool fid_is_idif(const struct lu_fid
*fid
)
417 return fid_seq_is_idif(fid_seq(fid
));
420 static inline bool fid_is_local_file(const struct lu_fid
*fid
)
422 return fid_seq_is_local_file(fid_seq(fid
));
425 static inline bool fid_seq_is_norm(__u64 seq
)
427 return (seq
>= FID_SEQ_NORMAL
);
430 static inline bool fid_is_norm(const struct lu_fid
*fid
)
432 return fid_seq_is_norm(fid_seq(fid
));
435 /* convert an OST objid into an IDIF FID SEQ number */
436 static inline __u64
fid_idif_seq(__u64 id
, __u32 ost_idx
)
438 return FID_SEQ_IDIF
| (ost_idx
<< 16) | ((id
>> 32) & 0xffff);
441 /* convert a packed IDIF FID into an OST objid */
442 static inline __u64
fid_idif_id(__u64 seq
, __u32 oid
, __u32 ver
)
444 return ((__u64
)ver
<< 48) | ((seq
& 0xffff) << 32) | oid
;
447 /* extract ost index from IDIF FID */
448 static inline __u32
fid_idif_ost_idx(const struct lu_fid
*fid
)
450 return (fid_seq(fid
) >> 16) & 0xffff;
453 /* extract OST sequence (group) from a wire ost_id (id/seq) pair */
454 static inline __u64
ostid_seq(const struct ost_id
*ostid
)
456 if (fid_seq_is_mdt0(ostid
->oi
.oi_seq
))
457 return FID_SEQ_OST_MDT0
;
459 if (unlikely(fid_seq_is_default(ostid
->oi
.oi_seq
)))
460 return FID_SEQ_LOV_DEFAULT
;
462 if (fid_is_idif(&ostid
->oi_fid
))
463 return FID_SEQ_OST_MDT0
;
465 return fid_seq(&ostid
->oi_fid
);
468 /* extract OST objid from a wire ost_id (id/seq) pair */
469 static inline __u64
ostid_id(const struct ost_id
*ostid
)
471 if (fid_seq_is_mdt0(ostid
->oi
.oi_seq
))
472 return ostid
->oi
.oi_id
& IDIF_OID_MASK
;
474 if (unlikely(fid_seq_is_default(ostid
->oi
.oi_seq
)))
475 return ostid
->oi
.oi_id
;
477 if (fid_is_idif(&ostid
->oi_fid
))
478 return fid_idif_id(fid_seq(&ostid
->oi_fid
),
479 fid_oid(&ostid
->oi_fid
), 0);
481 return fid_oid(&ostid
->oi_fid
);
484 static inline void ostid_set_seq(struct ost_id
*oi
, __u64 seq
)
486 if (fid_seq_is_mdt0(seq
) || fid_seq_is_default(seq
)) {
489 oi
->oi_fid
.f_seq
= seq
;
490 /* Note: if f_oid + f_ver is zero, we need init it
491 * to be 1, otherwise, ostid_seq will treat this
492 * as old ostid (oi_seq == 0)
494 if (oi
->oi_fid
.f_oid
== 0 && oi
->oi_fid
.f_ver
== 0)
495 oi
->oi_fid
.f_oid
= LUSTRE_FID_INIT_OID
;
499 static inline void ostid_set_seq_mdt0(struct ost_id
*oi
)
501 ostid_set_seq(oi
, FID_SEQ_OST_MDT0
);
504 static inline void ostid_set_seq_echo(struct ost_id
*oi
)
506 ostid_set_seq(oi
, FID_SEQ_ECHO
);
509 static inline void ostid_set_seq_llog(struct ost_id
*oi
)
511 ostid_set_seq(oi
, FID_SEQ_LLOG
);
515 * Note: we need check oi_seq to decide where to set oi_id,
516 * so oi_seq should always be set ahead of oi_id.
518 static inline void ostid_set_id(struct ost_id
*oi
, __u64 oid
)
520 if (fid_seq_is_mdt0(oi
->oi
.oi_seq
)) {
521 if (oid
>= IDIF_MAX_OID
) {
522 CERROR("Too large OID %#llx to set MDT0 " DOSTID
"\n",
527 } else if (fid_is_idif(&oi
->oi_fid
)) {
528 if (oid
>= IDIF_MAX_OID
) {
529 CERROR("Too large OID %#llx to set IDIF " DOSTID
"\n",
533 oi
->oi_fid
.f_seq
= fid_idif_seq(oid
,
534 fid_idif_ost_idx(&oi
->oi_fid
));
535 oi
->oi_fid
.f_oid
= oid
;
536 oi
->oi_fid
.f_ver
= oid
>> 48;
538 if (oid
>= OBIF_MAX_OID
) {
539 CERROR("Bad %llu to set " DOSTID
"\n", oid
, POSTID(oi
));
542 oi
->oi_fid
.f_oid
= oid
;
546 static inline int fid_set_id(struct lu_fid
*fid
, __u64 oid
)
548 if (unlikely(fid_seq_is_igif(fid
->f_seq
))) {
549 CERROR("bad IGIF, "DFID
"\n", PFID(fid
));
553 if (fid_is_idif(fid
)) {
554 if (oid
>= IDIF_MAX_OID
) {
555 CERROR("Too large OID %#llx to set IDIF " DFID
"\n",
556 (unsigned long long)oid
, PFID(fid
));
559 fid
->f_seq
= fid_idif_seq(oid
, fid_idif_ost_idx(fid
));
561 fid
->f_ver
= oid
>> 48;
563 if (oid
>= OBIF_MAX_OID
) {
564 CERROR("Too large OID %#llx to set REG " DFID
"\n",
565 (unsigned long long)oid
, PFID(fid
));
574 * Unpack an OST object id/seq (group) into a FID. This is needed for
575 * converting all obdo, lmm, lsm, etc. 64-bit id/seq pairs into proper
576 * FIDs. Note that if an id/seq is already in FID/IDIF format it will
577 * be passed through unchanged. Only legacy OST objects in "group 0"
578 * will be mapped into the IDIF namespace so that they can fit into the
579 * struct lu_fid fields without loss. For reference see:
580 * http://wiki.old.lustre.org/index.php/Architecture_-_Interoperability_fids_zfs
582 static inline int ostid_to_fid(struct lu_fid
*fid
, struct ost_id
*ostid
,
585 __u64 seq
= ostid_seq(ostid
);
587 if (ost_idx
> 0xffff) {
588 CERROR("bad ost_idx, "DOSTID
" ost_idx:%u\n", POSTID(ostid
),
593 if (fid_seq_is_mdt0(seq
)) {
594 __u64 oid
= ostid_id(ostid
);
596 /* This is a "legacy" (old 1.x/2.early) OST object in "group 0"
597 * that we map into the IDIF namespace. It allows up to 2^48
598 * objects per OST, as this is the object namespace that has
599 * been in production for years. This can handle create rates
600 * of 1M objects/s/OST for 9 years, or combinations thereof.
602 if (oid
>= IDIF_MAX_OID
) {
603 CERROR("bad MDT0 id, " DOSTID
" ost_idx:%u\n",
604 POSTID(ostid
), ost_idx
);
607 fid
->f_seq
= fid_idif_seq(oid
, ost_idx
);
608 /* truncate to 32 bits by assignment */
610 /* in theory, not currently used */
611 fid
->f_ver
= oid
>> 48;
612 } else if (likely(!fid_seq_is_default(seq
))) {
613 /* This is either an IDIF object, which identifies objects across
614 * all OSTs, or a regular FID. The IDIF namespace maps legacy
615 * OST objects into the FID namespace. In both cases, we just
616 * pass the FID through, no conversion needed.
618 if (ostid
->oi_fid
.f_ver
!= 0) {
619 CERROR("bad MDT0 id, " DOSTID
" ost_idx:%u\n",
620 POSTID(ostid
), ost_idx
);
623 *fid
= ostid
->oi_fid
;
629 /* pack any OST FID into an ostid (id/seq) for the wire/disk */
630 static inline int fid_to_ostid(const struct lu_fid
*fid
, struct ost_id
*ostid
)
632 if (unlikely(fid_seq_is_igif(fid
->f_seq
))) {
633 CERROR("bad IGIF, "DFID
"\n", PFID(fid
));
637 if (fid_is_idif(fid
)) {
638 ostid_set_seq_mdt0(ostid
);
639 ostid_set_id(ostid
, fid_idif_id(fid_seq(fid
), fid_oid(fid
),
642 ostid
->oi_fid
= *fid
;
648 /* Check whether the fid is for LAST_ID */
649 static inline bool fid_is_last_id(const struct lu_fid
*fid
)
651 return (fid_oid(fid
) == 0);
655 * Get inode number from a igif.
656 * \param fid a igif to get inode number from.
657 * \return inode number for the igif.
659 static inline ino_t
lu_igif_ino(const struct lu_fid
*fid
)
665 * Get inode generation from a igif.
666 * \param fid a igif to get inode generation from.
667 * \return inode generation for the igif.
669 static inline __u32
lu_igif_gen(const struct lu_fid
*fid
)
675 * Build igif from the inode number/generation.
677 static inline void lu_igif_build(struct lu_fid
*fid
, __u32 ino
, __u32 gen
)
685 * Fids are transmitted across network (in the sender byte-ordering),
686 * and stored on disk in big-endian order.
688 static inline void fid_cpu_to_le(struct lu_fid
*dst
, const struct lu_fid
*src
)
690 dst
->f_seq
= cpu_to_le64(fid_seq(src
));
691 dst
->f_oid
= cpu_to_le32(fid_oid(src
));
692 dst
->f_ver
= cpu_to_le32(fid_ver(src
));
695 static inline void fid_le_to_cpu(struct lu_fid
*dst
, const struct lu_fid
*src
)
697 dst
->f_seq
= le64_to_cpu(fid_seq(src
));
698 dst
->f_oid
= le32_to_cpu(fid_oid(src
));
699 dst
->f_ver
= le32_to_cpu(fid_ver(src
));
702 static inline void fid_cpu_to_be(struct lu_fid
*dst
, const struct lu_fid
*src
)
704 dst
->f_seq
= cpu_to_be64(fid_seq(src
));
705 dst
->f_oid
= cpu_to_be32(fid_oid(src
));
706 dst
->f_ver
= cpu_to_be32(fid_ver(src
));
709 static inline void fid_be_to_cpu(struct lu_fid
*dst
, const struct lu_fid
*src
)
711 dst
->f_seq
= be64_to_cpu(fid_seq(src
));
712 dst
->f_oid
= be32_to_cpu(fid_oid(src
));
713 dst
->f_ver
= be32_to_cpu(fid_ver(src
));
716 static inline bool fid_is_sane(const struct lu_fid
*fid
)
719 ((fid_seq(fid
) >= FID_SEQ_START
&& fid_ver(fid
) == 0) ||
720 fid_is_igif(fid
) || fid_is_idif(fid
) ||
721 fid_seq_is_rsvd(fid_seq(fid
)));
724 static inline bool lu_fid_eq(const struct lu_fid
*f0
, const struct lu_fid
*f1
)
726 return memcmp(f0
, f1
, sizeof(*f0
)) == 0;
729 #define __diff_normalize(val0, val1) \
731 typeof(val0) __val0 = (val0); \
732 typeof(val1) __val1 = (val1); \
734 (__val0 == __val1 ? 0 : __val0 > __val1 ? 1 : -1); \
737 static inline int lu_fid_cmp(const struct lu_fid
*f0
,
738 const struct lu_fid
*f1
)
741 __diff_normalize(fid_seq(f0
), fid_seq(f1
)) ?:
742 __diff_normalize(fid_oid(f0
), fid_oid(f1
)) ?:
743 __diff_normalize(fid_ver(f0
), fid_ver(f1
));
746 static inline void ostid_cpu_to_le(const struct ost_id
*src_oi
,
747 struct ost_id
*dst_oi
)
749 if (fid_seq_is_mdt0(ostid_seq(src_oi
))) {
750 dst_oi
->oi
.oi_id
= cpu_to_le64(src_oi
->oi
.oi_id
);
751 dst_oi
->oi
.oi_seq
= cpu_to_le64(src_oi
->oi
.oi_seq
);
753 fid_cpu_to_le(&dst_oi
->oi_fid
, &src_oi
->oi_fid
);
757 static inline void ostid_le_to_cpu(const struct ost_id
*src_oi
,
758 struct ost_id
*dst_oi
)
760 if (fid_seq_is_mdt0(ostid_seq(src_oi
))) {
761 dst_oi
->oi
.oi_id
= le64_to_cpu(src_oi
->oi
.oi_id
);
762 dst_oi
->oi
.oi_seq
= le64_to_cpu(src_oi
->oi
.oi_seq
);
764 fid_le_to_cpu(&dst_oi
->oi_fid
, &src_oi
->oi_fid
);
770 /** \defgroup lu_dir lu_dir
775 * Enumeration of possible directory entry attributes.
777 * Attributes follow directory entry header in the order they appear in this
780 enum lu_dirent_attrs
{
783 LUDA_64BITHASH
= 0x0004,
787 * Layout of readdir pages, as transmitted on wire.
790 /** valid if LUDA_FID is set. */
791 struct lu_fid lde_fid
;
792 /** a unique entry identifier: a hash or an offset. */
794 /** total record length, including all attributes. */
798 /** optional variable size attributes following this entry.
799 * taken from enum lu_dirent_attrs.
802 /** name is followed by the attributes indicated in ->ldp_attrs, in
803 * their natural order. After the last attribute, padding bytes are
804 * added to make ->lde_reclen a multiple of 8.
810 * Definitions of optional directory entry attributes formats.
812 * Individual attributes do not have their length encoded in a generic way. It
813 * is assumed that consumer of an attribute knows its format. This means that
814 * it is impossible to skip over an unknown attribute, except by skipping over all
815 * remaining attributes (by using ->lde_reclen), which is not too
816 * constraining, because new server versions will append new attributes at
817 * the end of an entry.
821 * Fid directory attribute: a fid of an object referenced by the entry. This
822 * will be almost always requested by the client and supplied by the server.
824 * Aligned to 8 bytes.
826 /* To have compatibility with 1.8, lets have fid in lu_dirent struct. */
831 * Aligned to 2 bytes.
842 #define IFTODT(type) (((type) & S_IFMT) >> IFSHIFT)
845 #define DTTOIF(dirtype) ((dirtype) << IFSHIFT)
849 __u64 ldp_hash_start
;
853 struct lu_dirent ldp_entries
[0];
856 enum lu_dirpage_flags
{
858 * dirpage contains no entry.
862 * last entry's lde_hash equals ldp_hash_end.
867 static inline struct lu_dirent
*lu_dirent_start(struct lu_dirpage
*dp
)
869 if (le32_to_cpu(dp
->ldp_flags
) & LDF_EMPTY
)
872 return dp
->ldp_entries
;
875 static inline struct lu_dirent
*lu_dirent_next(struct lu_dirent
*ent
)
877 struct lu_dirent
*next
;
879 if (le16_to_cpu(ent
->lde_reclen
) != 0)
880 next
= ((void *)ent
) + le16_to_cpu(ent
->lde_reclen
);
887 static inline size_t lu_dirent_calc_size(size_t namelen
, __u16 attr
)
891 if (attr
& LUDA_TYPE
) {
892 const size_t align
= sizeof(struct luda_type
) - 1;
894 size
= (sizeof(struct lu_dirent
) + namelen
+ align
) & ~align
;
895 size
+= sizeof(struct luda_type
);
897 size
= sizeof(struct lu_dirent
) + namelen
;
900 return (size
+ 7) & ~7;
903 #define MDS_DIR_END_OFF 0xfffffffffffffffeULL
906 * MDS_READPAGE page size
908 * This is the directory page size packed in MDS_READPAGE RPC.
909 * It's different than PAGE_SIZE because the client needs to
910 * access the struct lu_dirpage header packed at the beginning of
911 * the "page" and without this there isn't any way to know find the
912 * lu_dirpage header is if client and server PAGE_SIZE differ.
914 #define LU_PAGE_SHIFT 12
915 #define LU_PAGE_SIZE (1UL << LU_PAGE_SHIFT)
916 #define LU_PAGE_MASK (~(LU_PAGE_SIZE - 1))
918 #define LU_PAGE_COUNT (1 << (PAGE_SHIFT - LU_PAGE_SHIFT))
922 struct lustre_handle
{
926 #define DEAD_HANDLE_MAGIC 0xdeadbeefcafebabeULL
928 static inline bool lustre_handle_is_used(const struct lustre_handle
*lh
)
930 return lh
->cookie
!= 0ull;
933 static inline bool lustre_handle_equal(const struct lustre_handle
*lh1
,
934 const struct lustre_handle
*lh2
)
936 return lh1
->cookie
== lh2
->cookie
;
939 static inline void lustre_handle_copy(struct lustre_handle
*tgt
,
940 const struct lustre_handle
*src
)
942 tgt
->cookie
= src
->cookie
;
945 /* flags for lm_flags */
946 #define MSGHDR_AT_SUPPORT 0x1
947 #define MSGHDR_CKSUM_INCOMPAT18 0x2
949 #define lustre_msg lustre_msg_v2
950 /* we depend on this structure to be 8-byte aligned */
951 /* this type is only endian-adjusted in lustre_unpack_msg() */
952 struct lustre_msg_v2
{
964 /* without gss, ptlrpc_body is put at the first buffer. */
965 #define PTLRPC_NUM_VERSIONS 4
967 struct ptlrpc_body_v3
{
968 struct lustre_handle pb_handle
;
973 __u64 pb_last_xid
; /* highest replied XID without lower unreplied XID */
974 __u16 pb_tag
; /* virtual slot idx for multiple modifying RPCs */
977 __u64 pb_last_committed
;
982 __u32 pb_timeout
; /* for req, the deadline, for rep, the service est */
983 __u32 pb_service_time
; /* for rep, actual service time */
986 /* VBR: pre-versions */
987 __u64 pb_pre_versions
[PTLRPC_NUM_VERSIONS
];
988 __u64 pb_mbits
; /**< match bits for bulk request */
989 /* padding for future needs */
990 __u64 pb_padding64_0
;
991 __u64 pb_padding64_1
;
992 __u64 pb_padding64_2
;
993 char pb_jobid
[LUSTRE_JOBID_SIZE
];
996 #define ptlrpc_body ptlrpc_body_v3
998 struct ptlrpc_body_v2
{
999 struct lustre_handle pb_handle
;
1004 __u64 pb_last_xid
; /* highest replied XID without lower unreplied XID */
1005 __u16 pb_tag
; /* virtual slot idx for multiple modifying RPCs */
1008 __u64 pb_last_committed
;
1013 __u32 pb_timeout
; /* for req, the deadline, for rep, the service est */
1014 __u32 pb_service_time
; /* for rep, actual service time, also used for
1015 * net_latency of req
1019 /* VBR: pre-versions */
1020 __u64 pb_pre_versions
[PTLRPC_NUM_VERSIONS
];
1021 __u64 pb_mbits
; /**< unused in V2 */
1022 /* padding for future needs */
1023 __u64 pb_padding64_0
;
1024 __u64 pb_padding64_1
;
1025 __u64 pb_padding64_2
;
1028 /* message body offset for lustre_msg_v2 */
1029 /* ptlrpc body offset in all request/reply messages */
1030 #define MSG_PTLRPC_BODY_OFF 0
1032 /* normal request/reply message record offset */
1033 #define REQ_REC_OFF 1
1034 #define REPLY_REC_OFF 1
1036 /* ldlm request message body offset */
1037 #define DLM_LOCKREQ_OFF 1 /* lockreq offset */
1038 #define DLM_REQ_REC_OFF 2 /* normal dlm request record offset */
1040 /* ldlm intent lock message body offset */
1041 #define DLM_INTENT_IT_OFF 2 /* intent lock it offset */
1042 #define DLM_INTENT_REC_OFF 3 /* intent lock record offset */
1044 /* ldlm reply message body offset */
1045 #define DLM_LOCKREPLY_OFF 1 /* lockrep offset */
1046 #define DLM_REPLY_REC_OFF 2 /* reply record offset */
1048 /** only use in req->rq_{req,rep}_swab_mask */
1049 #define MSG_PTLRPC_HEADER_OFF 31
1051 /* Flags that are operation-specific go in the top 16 bits. */
1052 #define MSG_OP_FLAG_MASK 0xffff0000
1053 #define MSG_OP_FLAG_SHIFT 16
1055 /* Flags that apply to all requests are in the bottom 16 bits */
1056 #define MSG_GEN_FLAG_MASK 0x0000ffff
1057 #define MSG_LAST_REPLAY 0x0001
1058 #define MSG_RESENT 0x0002
1059 #define MSG_REPLAY 0x0004
1060 /* #define MSG_AT_SUPPORT 0x0008
1061 * This was used in early prototypes of adaptive timeouts, and while there
1062 * shouldn't be any users of that code there also isn't a need for using this
1063 * bits. Defer usage until at least 1.10 to avoid potential conflict.
1065 #define MSG_DELAY_REPLAY 0x0010
1066 #define MSG_VERSION_REPLAY 0x0020
1067 #define MSG_REQ_REPLAY_DONE 0x0040
1068 #define MSG_LOCK_REPLAY_DONE 0x0080
1071 * Flags for all connect opcodes (MDS_CONNECT, OST_CONNECT)
1074 #define MSG_CONNECT_RECOVERING 0x00000001
1075 #define MSG_CONNECT_RECONNECT 0x00000002
1076 #define MSG_CONNECT_REPLAYABLE 0x00000004
1077 /*#define MSG_CONNECT_PEER 0x8 */
1078 #define MSG_CONNECT_LIBCLIENT 0x00000010
1079 #define MSG_CONNECT_INITIAL 0x00000020
1080 #define MSG_CONNECT_ASYNC 0x00000040
1081 #define MSG_CONNECT_NEXT_VER 0x00000080 /* use next version of lustre_msg */
1082 #define MSG_CONNECT_TRANSNO 0x00000100 /* report transno */
1085 #define OBD_CONNECT_RDONLY 0x1ULL /*client has read-only access*/
1086 #define OBD_CONNECT_INDEX 0x2ULL /*connect specific LOV idx */
1087 #define OBD_CONNECT_MDS 0x4ULL /*connect from MDT to OST */
1088 #define OBD_CONNECT_GRANT 0x8ULL /*OSC gets grant at connect */
1089 #define OBD_CONNECT_SRVLOCK 0x10ULL /*server takes locks for cli */
1090 #define OBD_CONNECT_VERSION 0x20ULL /*Lustre versions in ocd */
1091 #define OBD_CONNECT_REQPORTAL 0x40ULL /*Separate non-IO req portal */
1092 #define OBD_CONNECT_ACL 0x80ULL /*access control lists */
1093 #define OBD_CONNECT_XATTR 0x100ULL /*client use extended attr */
1094 #define OBD_CONNECT_CROW 0x200ULL /*MDS+OST create obj on write*/
1095 #define OBD_CONNECT_TRUNCLOCK 0x400ULL /*locks on server for punch */
1096 #define OBD_CONNECT_TRANSNO 0x800ULL /*replay sends init transno */
1097 #define OBD_CONNECT_IBITS 0x1000ULL /*support for inodebits locks*/
1098 #define OBD_CONNECT_JOIN 0x2000ULL /*files can be concatenated.
1099 *We do not support JOIN FILE
1100 *anymore, reserve this flags
1101 *just for preventing such bit
1104 #define OBD_CONNECT_ATTRFID 0x4000ULL /*Server can GetAttr By Fid*/
1105 #define OBD_CONNECT_NODEVOH 0x8000ULL /*No open hndl on specl nodes*/
1106 #define OBD_CONNECT_RMT_CLIENT 0x10000ULL /* Remote client, never used
1107 * in production. Removed in
1108 * 2.9. Keep this flag to
1111 #define OBD_CONNECT_RMT_CLIENT_FORCE 0x20000ULL /* Remote client by force,
1112 * never used in production.
1113 * Removed in 2.9. Keep this
1114 * flag to avoid reuse
1116 #define OBD_CONNECT_BRW_SIZE 0x40000ULL /*Max bytes per rpc */
1117 #define OBD_CONNECT_QUOTA64 0x80000ULL /*Not used since 2.4 */
1118 #define OBD_CONNECT_MDS_CAPA 0x100000ULL /*MDS capability */
1119 #define OBD_CONNECT_OSS_CAPA 0x200000ULL /*OSS capability */
1120 #define OBD_CONNECT_CANCELSET 0x400000ULL /*Early batched cancels. */
1121 #define OBD_CONNECT_SOM 0x800000ULL /*Size on MDS */
1122 #define OBD_CONNECT_AT 0x1000000ULL /*client uses AT */
1123 #define OBD_CONNECT_LRU_RESIZE 0x2000000ULL /*LRU resize feature. */
1124 #define OBD_CONNECT_MDS_MDS 0x4000000ULL /*MDS-MDS connection */
1125 #define OBD_CONNECT_REAL 0x8000000ULL /*real connection */
1126 #define OBD_CONNECT_CHANGE_QS 0x10000000ULL /*Not used since 2.4 */
1127 #define OBD_CONNECT_CKSUM 0x20000000ULL /*support several cksum algos*/
1128 #define OBD_CONNECT_FID 0x40000000ULL /*FID is supported by server */
1129 #define OBD_CONNECT_VBR 0x80000000ULL /*version based recovery */
1130 #define OBD_CONNECT_LOV_V3 0x100000000ULL /*client supports LOV v3 EA */
1131 #define OBD_CONNECT_GRANT_SHRINK 0x200000000ULL /* support grant shrink */
1132 #define OBD_CONNECT_SKIP_ORPHAN 0x400000000ULL /* don't reuse orphan objids */
1133 #define OBD_CONNECT_MAX_EASIZE 0x800000000ULL /* preserved for large EA */
1134 #define OBD_CONNECT_FULL20 0x1000000000ULL /* it is 2.0 client */
1135 #define OBD_CONNECT_LAYOUTLOCK 0x2000000000ULL /* client uses layout lock */
1136 #define OBD_CONNECT_64BITHASH 0x4000000000ULL /* client supports 64-bits
1139 #define OBD_CONNECT_MAXBYTES 0x8000000000ULL /* max stripe size */
1140 #define OBD_CONNECT_IMP_RECOV 0x10000000000ULL /* imp recovery support */
1141 #define OBD_CONNECT_JOBSTATS 0x20000000000ULL /* jobid in ptlrpc_body */
1142 #define OBD_CONNECT_UMASK 0x40000000000ULL /* create uses client umask */
1143 #define OBD_CONNECT_EINPROGRESS 0x80000000000ULL /* client handles -EINPROGRESS
1144 * RPC error properly
1146 #define OBD_CONNECT_GRANT_PARAM 0x100000000000ULL/* extra grant params used for
1147 * finer space reservation
1149 #define OBD_CONNECT_FLOCK_OWNER 0x200000000000ULL /* for the fixed 1.8
1150 * policy and 2.x server
1152 #define OBD_CONNECT_LVB_TYPE 0x400000000000ULL /* variable type of LVB */
1153 #define OBD_CONNECT_NANOSEC_TIME 0x800000000000ULL /* nanosecond timestamps */
1154 #define OBD_CONNECT_LIGHTWEIGHT 0x1000000000000ULL/* lightweight connection */
1155 #define OBD_CONNECT_SHORTIO 0x2000000000000ULL/* short io */
1156 #define OBD_CONNECT_PINGLESS 0x4000000000000ULL/* pings not required */
1157 #define OBD_CONNECT_FLOCK_DEAD 0x8000000000000ULL/* flock deadlock detection */
1158 #define OBD_CONNECT_DISP_STRIPE 0x10000000000000ULL/*create stripe disposition*/
1159 #define OBD_CONNECT_OPEN_BY_FID 0x20000000000000ULL /* open by fid won't pack
1162 #define OBD_CONNECT_LFSCK 0x40000000000000ULL/* support online LFSCK */
1163 #define OBD_CONNECT_UNLINK_CLOSE 0x100000000000000ULL/* close file in unlink */
1164 #define OBD_CONNECT_MULTIMODRPCS 0x200000000000000ULL /* support multiple modify
1167 #define OBD_CONNECT_DIR_STRIPE 0x400000000000000ULL/* striped DNE dir */
1168 #define OBD_CONNECT_SUBTREE 0x800000000000000ULL /* fileset mount */
1169 #define OBD_CONNECT_LOCK_AHEAD 0x1000000000000000ULL /* lock ahead */
1170 /** bulk matchbits is sent within ptlrpc_body */
1171 #define OBD_CONNECT_BULK_MBITS 0x2000000000000000ULL
1172 #define OBD_CONNECT_OBDOPACK 0x4000000000000000ULL /* compact OUT obdo */
1173 #define OBD_CONNECT_FLAGS2 0x8000000000000000ULL /* second flags word */
1176 * Please DO NOT add flag values here before first ensuring that this same
1177 * flag value is not in use on some other branch. Please clear any such
1178 * changes with senior engineers before starting to use a new flag. Then,
1179 * submit a small patch against EVERY branch that ONLY adds the new flag,
1180 * updates obd_connect_names[] for lprocfs_rd_connect_flags(), adds the
1181 * flag to check_obd_connect_data(), and updates wiretests accordingly, so it
1182 * can be approved and landed easily to reserve the flag for future use.
1185 /* The MNE_SWAB flag is overloading the MDS_MDS bit only for the MGS
1186 * connection. It is a temporary bug fix for Imperative Recovery interop
1187 * between 2.2 and 2.3 x86/ppc nodes, and can be removed when interop for
1188 * 2.2 clients/servers is no longer needed. LU-1252/LU-1644.
1190 #define OBD_CONNECT_MNE_SWAB OBD_CONNECT_MDS_MDS
1192 #define OCD_HAS_FLAG(ocd, flg) \
1193 (!!((ocd)->ocd_connect_flags & OBD_CONNECT_##flg))
1195 /* Features required for this version of the client to work with server */
1196 #define CLIENT_CONNECT_MDT_REQD (OBD_CONNECT_IBITS | OBD_CONNECT_FID | \
1199 /* This structure is used for both request and reply.
1201 * If we eventually have separate connect data for different types, which we
1202 * almost certainly will, then perhaps we stick a union in here.
1204 struct obd_connect_data
{
1205 __u64 ocd_connect_flags
; /* OBD_CONNECT_* per above */
1206 __u32 ocd_version
; /* lustre release version number */
1207 __u32 ocd_grant
; /* initial cache grant amount (bytes) */
1208 __u32 ocd_index
; /* LOV index to connect to */
1209 __u32 ocd_brw_size
; /* Maximum BRW size in bytes */
1210 __u64 ocd_ibits_known
; /* inode bits this client understands */
1211 __u8 ocd_blocksize
; /* log2 of the backend filesystem blocksize */
1212 __u8 ocd_inodespace
; /* log2 of the per-inode space consumption */
1213 __u16 ocd_grant_extent
; /* per-extent grant overhead, in 1K blocks */
1214 __u32 ocd_unused
; /* also fix lustre_swab_connect */
1215 __u64 ocd_transno
; /* first transno from client to be replayed */
1216 __u32 ocd_group
; /* MDS group on OST */
1217 __u32 ocd_cksum_types
; /* supported checksum algorithms */
1218 __u32 ocd_max_easize
; /* How big LOV EA can be on MDS */
1219 __u32 ocd_instance
; /* instance # of this target */
1220 __u64 ocd_maxbytes
; /* Maximum stripe size in bytes */
1221 /* Fields after ocd_maxbytes are only accessible by the receiver
1222 * if the corresponding flag in ocd_connect_flags is set. Accessing
1223 * any field after ocd_maxbytes on the receiver without a valid flag
1224 * may result in out-of-bound memory access and kernel oops.
1226 __u16 ocd_maxmodrpcs
; /* Maximum modify RPCs in parallel */
1227 __u16 padding0
; /* added 2.1.0. also fix lustre_swab_connect */
1228 __u32 padding1
; /* added 2.1.0. also fix lustre_swab_connect */
1229 __u64 ocd_connect_flags2
;
1230 __u64 padding3
; /* added 2.1.0. also fix lustre_swab_connect */
1231 __u64 padding4
; /* added 2.1.0. also fix lustre_swab_connect */
1232 __u64 padding5
; /* added 2.1.0. also fix lustre_swab_connect */
1233 __u64 padding6
; /* added 2.1.0. also fix lustre_swab_connect */
1234 __u64 padding7
; /* added 2.1.0. also fix lustre_swab_connect */
1235 __u64 padding8
; /* added 2.1.0. also fix lustre_swab_connect */
1236 __u64 padding9
; /* added 2.1.0. also fix lustre_swab_connect */
1237 __u64 paddingA
; /* added 2.1.0. also fix lustre_swab_connect */
1238 __u64 paddingB
; /* added 2.1.0. also fix lustre_swab_connect */
1239 __u64 paddingC
; /* added 2.1.0. also fix lustre_swab_connect */
1240 __u64 paddingD
; /* added 2.1.0. also fix lustre_swab_connect */
1241 __u64 paddingE
; /* added 2.1.0. also fix lustre_swab_connect */
1242 __u64 paddingF
; /* added 2.1.0. also fix lustre_swab_connect */
1246 * Please DO NOT use any fields here before first ensuring that this same
1247 * field is not in use on some other branch. Please clear any such changes
1248 * with senior engineers before starting to use a new field. Then, submit
1249 * a small patch against EVERY branch that ONLY adds the new field along with
1250 * the matching OBD_CONNECT flag, so that can be approved and landed easily to
1251 * reserve the flag for future use.
1255 * Supported checksum algorithms. Up to 32 checksum types are supported.
1256 * (32-bit mask stored in obd_connect_data::ocd_cksum_types)
1257 * Please update DECLARE_CKSUM_NAME/OBD_CKSUM_ALL in obd.h when adding a new
1258 * algorithm and also the OBD_FL_CKSUM* flags.
1261 OBD_CKSUM_CRC32
= 0x00000001,
1262 OBD_CKSUM_ADLER
= 0x00000002,
1263 OBD_CKSUM_CRC32C
= 0x00000004,
1267 * OST requests: OBDO & OBD request records
1272 OST_REPLY
= 0, /* reply ? */
1288 OST_QUOTACHECK
= 18, /* not used since 2.4 */
1290 OST_QUOTA_ADJUST_QUNIT
= 20, /* not used since 2.4 */
1293 #define OST_FIRST_OPC OST_REPLY
1296 OBD_FL_INLINEDATA
= 0x00000001,
1297 OBD_FL_OBDMDEXISTS
= 0x00000002,
1298 OBD_FL_DELORPHAN
= 0x00000004, /* if set in o_flags delete orphans */
1299 OBD_FL_NORPC
= 0x00000008, /* set in o_flags do in OSC not OST */
1300 OBD_FL_IDONLY
= 0x00000010, /* set in o_flags only adjust obj id*/
1301 OBD_FL_RECREATE_OBJS
= 0x00000020, /* recreate missing obj */
1302 OBD_FL_DEBUG_CHECK
= 0x00000040, /* echo client/server debug check */
1303 OBD_FL_NO_USRQUOTA
= 0x00000100, /* the object's owner is over quota */
1304 OBD_FL_NO_GRPQUOTA
= 0x00000200, /* the object's group is over quota */
1305 OBD_FL_CREATE_CROW
= 0x00000400, /* object should be create on write */
1306 OBD_FL_SRVLOCK
= 0x00000800, /* delegate DLM locking to server */
1307 OBD_FL_CKSUM_CRC32
= 0x00001000, /* CRC32 checksum type */
1308 OBD_FL_CKSUM_ADLER
= 0x00002000, /* ADLER checksum type */
1309 OBD_FL_CKSUM_CRC32C
= 0x00004000, /* CRC32C checksum type */
1310 OBD_FL_CKSUM_RSVD2
= 0x00008000, /* for future cksum types */
1311 OBD_FL_CKSUM_RSVD3
= 0x00010000, /* for future cksum types */
1312 OBD_FL_SHRINK_GRANT
= 0x00020000, /* object shrink the grant */
1313 OBD_FL_MMAP
= 0x00040000, /* object is mmapped on the client.
1314 * XXX: obsoleted - reserved for old
1315 * clients prior than 2.2
1317 OBD_FL_RECOV_RESEND
= 0x00080000, /* recoverable resent */
1318 OBD_FL_NOSPC_BLK
= 0x00100000, /* no more block space on OST */
1319 OBD_FL_FLUSH
= 0x00200000, /* flush pages on the OST */
1320 OBD_FL_SHORT_IO
= 0x00400000, /* short io request */
1322 /* Note that while these checksum values are currently separate bits,
1323 * in 2.x we can actually allow all values from 1-31 if we wanted.
1325 OBD_FL_CKSUM_ALL
= OBD_FL_CKSUM_CRC32
| OBD_FL_CKSUM_ADLER
|
1326 OBD_FL_CKSUM_CRC32C
,
1328 /* mask for local-only flag, which won't be sent over network */
1329 OBD_FL_LOCAL_MASK
= 0xF0000000,
1333 * All LOV EA magics should have the same postfix, if some new version
1334 * Lustre instroduces new LOV EA magic, then when down-grade to an old
1335 * Lustre, even though the old version system does not recognizes such
1336 * new magic, it still can distinguish the corrupted cases by checking
1337 * the magic's postfix.
1339 #define LOV_MAGIC_MAGIC 0x0BD0
1340 #define LOV_MAGIC_MASK 0xFFFF
1342 #define LOV_MAGIC_V1 (0x0BD10000 | LOV_MAGIC_MAGIC)
1343 #define LOV_MAGIC_JOIN_V1 (0x0BD20000 | LOV_MAGIC_MAGIC)
1344 #define LOV_MAGIC_V3 (0x0BD30000 | LOV_MAGIC_MAGIC)
1345 #define LOV_MAGIC_MIGRATE (0x0BD40000 | LOV_MAGIC_MAGIC)
1346 /* reserved for specifying OSTs */
1347 #define LOV_MAGIC_SPECIFIC (0x0BD50000 | LOV_MAGIC_MAGIC)
1348 #define LOV_MAGIC LOV_MAGIC_V1
1351 * magic for fully defined striping
1352 * the idea is that we should have different magics for striping "hints"
1353 * (struct lov_user_md_v[13]) and defined ready-to-use striping (struct
1354 * lov_mds_md_v[13]). at the moment the magics are used in wire protocol,
1355 * we can't just change it w/o long way preparation, but we still need a
1356 * mechanism to allow LOD to differentiate hint versus ready striping.
1357 * so, at the moment we do a trick: MDT knows what to expect from request
1358 * depending on the case (replay uses ready striping, non-replay req uses
1359 * hints), so MDT replaces magic with appropriate one and now LOD can
1360 * easily understand what's inside -bzzz
1362 #define LOV_MAGIC_V1_DEF 0x0CD10BD0
1363 #define LOV_MAGIC_V3_DEF 0x0CD30BD0
1365 #define lov_pattern(pattern) (pattern & ~LOV_PATTERN_F_MASK)
1366 #define lov_pattern_flags(pattern) (pattern & LOV_PATTERN_F_MASK)
1368 #define lov_ost_data lov_ost_data_v1
1369 struct lov_ost_data_v1
{ /* per-stripe data structure (little-endian)*/
1370 struct ost_id l_ost_oi
; /* OST object ID */
1371 __u32 l_ost_gen
; /* generation of this l_ost_idx */
1372 __u32 l_ost_idx
; /* OST index in LOV (lov_tgt_desc->tgts) */
1375 #define lov_mds_md lov_mds_md_v1
1376 struct lov_mds_md_v1
{ /* LOV EA mds/wire data (little-endian) */
1377 __u32 lmm_magic
; /* magic number = LOV_MAGIC_V1 */
1378 __u32 lmm_pattern
; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
1379 struct ost_id lmm_oi
; /* LOV object ID */
1380 __u32 lmm_stripe_size
; /* size of stripe in bytes */
1381 /* lmm_stripe_count used to be __u32 */
1382 __u16 lmm_stripe_count
; /* num stripes in use for this object */
1383 __u16 lmm_layout_gen
; /* layout generation number */
1384 struct lov_ost_data_v1 lmm_objects
[0]; /* per-stripe data */
1388 * Sigh, because pre-2.4 uses
1389 * struct lov_mds_md_v1 {
1391 * __u64 lmm_object_id;
1392 * __u64 lmm_object_seq;
1395 * to identify the LOV(MDT) object, and lmm_object_seq will
1396 * be normal_fid, which make it hard to combine these conversion
1397 * to ostid_to FID. so we will do lmm_oi/fid conversion separately
1399 * We can tell the lmm_oi by this way,
1400 * 1.8: lmm_object_id = {inode}, lmm_object_gr = 0
1401 * 2.1: lmm_object_id = {oid < 128k}, lmm_object_seq = FID_SEQ_NORMAL
1402 * 2.4: lmm_oi.f_seq = FID_SEQ_NORMAL, lmm_oi.f_oid = {oid < 128k},
1405 * But currently lmm_oi/lsm_oi does not have any "real" usages,
1406 * except for printing some information, and the user can always
1407 * get the real FID from LMA, besides this multiple case check might
1408 * make swab more complicate. So we will keep using id/seq for lmm_oi.
1411 static inline void fid_to_lmm_oi(const struct lu_fid
*fid
,
1414 oi
->oi
.oi_id
= fid_oid(fid
);
1415 oi
->oi
.oi_seq
= fid_seq(fid
);
1418 static inline void lmm_oi_set_seq(struct ost_id
*oi
, __u64 seq
)
1420 oi
->oi
.oi_seq
= seq
;
1423 static inline void lmm_oi_set_id(struct ost_id
*oi
, __u64 oid
)
1428 static inline __u64
lmm_oi_id(const struct ost_id
*oi
)
1430 return oi
->oi
.oi_id
;
1433 static inline __u64
lmm_oi_seq(const struct ost_id
*oi
)
1435 return oi
->oi
.oi_seq
;
1438 static inline void lmm_oi_le_to_cpu(struct ost_id
*dst_oi
,
1439 const struct ost_id
*src_oi
)
1441 dst_oi
->oi
.oi_id
= le64_to_cpu(src_oi
->oi
.oi_id
);
1442 dst_oi
->oi
.oi_seq
= le64_to_cpu(src_oi
->oi
.oi_seq
);
1445 static inline void lmm_oi_cpu_to_le(struct ost_id
*dst_oi
,
1446 const struct ost_id
*src_oi
)
1448 dst_oi
->oi
.oi_id
= cpu_to_le64(src_oi
->oi
.oi_id
);
1449 dst_oi
->oi
.oi_seq
= cpu_to_le64(src_oi
->oi
.oi_seq
);
1452 #define MAX_MD_SIZE \
1453 (sizeof(struct lov_mds_md) + 4 * sizeof(struct lov_ost_data))
1454 #define MIN_MD_SIZE \
1455 (sizeof(struct lov_mds_md) + 1 * sizeof(struct lov_ost_data))
1457 #define XATTR_NAME_ACL_ACCESS "system.posix_acl_access"
1458 #define XATTR_NAME_ACL_DEFAULT "system.posix_acl_default"
1459 #define XATTR_USER_PREFIX "user."
1460 #define XATTR_TRUSTED_PREFIX "trusted."
1461 #define XATTR_SECURITY_PREFIX "security."
1462 #define XATTR_LUSTRE_PREFIX "lustre."
1464 #define XATTR_NAME_LOV "trusted.lov"
1465 #define XATTR_NAME_LMA "trusted.lma"
1466 #define XATTR_NAME_LMV "trusted.lmv"
1467 #define XATTR_NAME_DEFAULT_LMV "trusted.dmv"
1468 #define XATTR_NAME_LINK "trusted.link"
1469 #define XATTR_NAME_FID "trusted.fid"
1470 #define XATTR_NAME_VERSION "trusted.version"
1471 #define XATTR_NAME_SOM "trusted.som"
1472 #define XATTR_NAME_HSM "trusted.hsm"
1473 #define XATTR_NAME_LFSCK_NAMESPACE "trusted.lfsck_namespace"
1475 struct lov_mds_md_v3
{ /* LOV EA mds/wire data (little-endian) */
1476 __u32 lmm_magic
; /* magic number = LOV_MAGIC_V3 */
1477 __u32 lmm_pattern
; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
1478 struct ost_id lmm_oi
; /* LOV object ID */
1479 __u32 lmm_stripe_size
; /* size of stripe in bytes */
1480 /* lmm_stripe_count used to be __u32 */
1481 __u16 lmm_stripe_count
; /* num stripes in use for this object */
1482 __u16 lmm_layout_gen
; /* layout generation number */
1483 char lmm_pool_name
[LOV_MAXPOOLNAME
+ 1]; /* must be 32bit aligned */
1484 struct lov_ost_data_v1 lmm_objects
[0]; /* per-stripe data */
1487 static inline __u32
lov_mds_md_size(__u16 stripes
, __u32 lmm_magic
)
1489 if (lmm_magic
== LOV_MAGIC_V3
)
1490 return sizeof(struct lov_mds_md_v3
) +
1491 stripes
* sizeof(struct lov_ost_data_v1
);
1493 return sizeof(struct lov_mds_md_v1
) +
1494 stripes
* sizeof(struct lov_ost_data_v1
);
1498 lov_mds_md_max_stripe_count(size_t buf_size
, __u32 lmm_magic
)
1500 switch (lmm_magic
) {
1501 case LOV_MAGIC_V1
: {
1502 struct lov_mds_md_v1 lmm
;
1504 if (buf_size
< sizeof(lmm
))
1507 return (buf_size
- sizeof(lmm
)) / sizeof(lmm
.lmm_objects
[0]);
1509 case LOV_MAGIC_V3
: {
1510 struct lov_mds_md_v3 lmm
;
1512 if (buf_size
< sizeof(lmm
))
1515 return (buf_size
- sizeof(lmm
)) / sizeof(lmm
.lmm_objects
[0]);
1522 #define OBD_MD_FLID (0x00000001ULL) /* object ID */
1523 #define OBD_MD_FLATIME (0x00000002ULL) /* access time */
1524 #define OBD_MD_FLMTIME (0x00000004ULL) /* data modification time */
1525 #define OBD_MD_FLCTIME (0x00000008ULL) /* change time */
1526 #define OBD_MD_FLSIZE (0x00000010ULL) /* size */
1527 #define OBD_MD_FLBLOCKS (0x00000020ULL) /* allocated blocks count */
1528 #define OBD_MD_FLBLKSZ (0x00000040ULL) /* block size */
1529 #define OBD_MD_FLMODE (0x00000080ULL) /* access bits (mode & ~S_IFMT) */
1530 #define OBD_MD_FLTYPE (0x00000100ULL) /* object type (mode & S_IFMT) */
1531 #define OBD_MD_FLUID (0x00000200ULL) /* user ID */
1532 #define OBD_MD_FLGID (0x00000400ULL) /* group ID */
1533 #define OBD_MD_FLFLAGS (0x00000800ULL) /* flags word */
1534 #define OBD_MD_FLNLINK (0x00002000ULL) /* link count */
1535 #define OBD_MD_FLGENER (0x00004000ULL) /* generation number */
1536 /*#define OBD_MD_FLINLINE (0x00008000ULL) inline data. used until 1.6.5 */
1537 #define OBD_MD_FLRDEV (0x00010000ULL) /* device number */
1538 #define OBD_MD_FLEASIZE (0x00020000ULL) /* extended attribute data */
1539 #define OBD_MD_LINKNAME (0x00040000ULL) /* symbolic link target */
1540 #define OBD_MD_FLHANDLE (0x00080000ULL) /* file/lock handle */
1541 #define OBD_MD_FLCKSUM (0x00100000ULL) /* bulk data checksum */
1542 #define OBD_MD_FLQOS (0x00200000ULL) /* quality of service stats */
1543 /*#define OBD_MD_FLOSCOPQ (0x00400000ULL) osc opaque data, never used */
1544 /* OBD_MD_FLCOOKIE (0x00800000ULL) obsolete in 2.8 */
1545 #define OBD_MD_FLGROUP (0x01000000ULL) /* group */
1546 #define OBD_MD_FLFID (0x02000000ULL) /* ->ost write inline fid */
1547 #define OBD_MD_FLEPOCH (0x04000000ULL) /* ->ost write with ioepoch */
1548 /* ->mds if epoch opens or closes
1550 #define OBD_MD_FLGRANT (0x08000000ULL) /* ost preallocation space grant */
1551 #define OBD_MD_FLDIREA (0x10000000ULL) /* dir's extended attribute data */
1552 #define OBD_MD_FLUSRQUOTA (0x20000000ULL) /* over quota flags sent from ost */
1553 #define OBD_MD_FLGRPQUOTA (0x40000000ULL) /* over quota flags sent from ost */
1554 #define OBD_MD_FLMODEASIZE (0x80000000ULL) /* EA size will be changed */
1556 #define OBD_MD_MDS (0x0000000100000000ULL) /* where an inode lives on */
1557 #define OBD_MD_REINT (0x0000000200000000ULL) /* reintegrate oa */
1558 #define OBD_MD_MEA (0x0000000400000000ULL) /* CMD split EA */
1559 #define OBD_MD_TSTATE (0x0000000800000000ULL) /* transient state field */
1561 #define OBD_MD_FLXATTR (0x0000001000000000ULL) /* xattr */
1562 #define OBD_MD_FLXATTRLS (0x0000002000000000ULL) /* xattr list */
1563 #define OBD_MD_FLXATTRRM (0x0000004000000000ULL) /* xattr remove */
1564 #define OBD_MD_FLACL (0x0000008000000000ULL) /* ACL */
1565 /* OBD_MD_FLRMTPERM (0x0000010000000000ULL) remote perm, obsolete */
1566 #define OBD_MD_FLMDSCAPA (0x0000020000000000ULL) /* MDS capability */
1567 #define OBD_MD_FLOSSCAPA (0x0000040000000000ULL) /* OSS capability */
1568 #define OBD_MD_FLCKSPLIT (0x0000080000000000ULL) /* Check split on server */
1569 #define OBD_MD_FLCROSSREF (0x0000100000000000ULL) /* Cross-ref case */
1570 #define OBD_MD_FLGETATTRLOCK (0x0000200000000000ULL) /* Get IOEpoch attributes
1571 * under lock; for xattr
1572 * requests means the
1573 * client holds the lock
1575 #define OBD_MD_FLOBJCOUNT (0x0000400000000000ULL) /* for multiple destroy */
1577 /* OBD_MD_FLRMTLSETFACL (0x0001000000000000ULL) lfs lsetfacl, obsolete */
1578 /* OBD_MD_FLRMTLGETFACL (0x0002000000000000ULL) lfs lgetfacl, obsolete */
1579 /* OBD_MD_FLRMTRSETFACL (0x0004000000000000ULL) lfs rsetfacl, obsolete */
1580 /* OBD_MD_FLRMTRGETFACL (0x0008000000000000ULL) lfs rgetfacl, obsolete */
1582 #define OBD_MD_FLDATAVERSION (0x0010000000000000ULL) /* iversion sum */
1583 #define OBD_MD_CLOSE_INTENT_EXECED (0x0020000000000000ULL) /* close intent
1587 #define OBD_MD_DEFAULT_MEA (0x0040000000000000ULL) /* default MEA */
1589 #define OBD_MD_FLGETATTR (OBD_MD_FLID | OBD_MD_FLATIME | OBD_MD_FLMTIME | \
1590 OBD_MD_FLCTIME | OBD_MD_FLSIZE | OBD_MD_FLBLKSZ | \
1591 OBD_MD_FLMODE | OBD_MD_FLTYPE | OBD_MD_FLUID | \
1592 OBD_MD_FLGID | OBD_MD_FLFLAGS | OBD_MD_FLNLINK | \
1593 OBD_MD_FLGENER | OBD_MD_FLRDEV | OBD_MD_FLGROUP)
1595 #define OBD_MD_FLXATTRALL (OBD_MD_FLXATTR | OBD_MD_FLXATTRLS)
1597 /* don't forget obdo_fid which is way down at the bottom so it can
1598 * come after the definition of llog_cookie
1603 HSS_CLEARMASK
= 0x02,
1604 HSS_ARCHIVE_ID
= 0x04,
1607 struct hsm_state_set
{
1609 __u32 hss_archive_id
;
1611 __u64 hss_clearmask
;
1614 /* ost_body.data values for OST_BRW */
1616 #define OBD_BRW_READ 0x01
1617 #define OBD_BRW_WRITE 0x02
1618 #define OBD_BRW_RWMASK (OBD_BRW_READ | OBD_BRW_WRITE)
1619 #define OBD_BRW_SYNC 0x08 /* this page is a part of synchronous
1620 * transfer and is not accounted in
1623 #define OBD_BRW_CHECK 0x10
1624 #define OBD_BRW_FROM_GRANT 0x20 /* the osc manages this under llite */
1625 #define OBD_BRW_GRANTED 0x40 /* the ost manages this */
1626 #define OBD_BRW_NOCACHE 0x80 /* this page is a part of non-cached IO */
1627 #define OBD_BRW_NOQUOTA 0x100
1628 #define OBD_BRW_SRVLOCK 0x200 /* Client holds no lock over this page */
1629 #define OBD_BRW_ASYNC 0x400 /* Server may delay commit to disk */
1630 #define OBD_BRW_MEMALLOC 0x800 /* Client runs in the "kswapd" context */
1631 #define OBD_BRW_OVER_USRQUOTA 0x1000 /* Running out of user quota */
1632 #define OBD_BRW_OVER_GRPQUOTA 0x2000 /* Running out of group quota */
1633 #define OBD_BRW_SOFT_SYNC 0x4000 /* This flag notifies the server
1634 * that the client is running low on
1635 * space for unstable pages; asking
1636 * it to sync quickly
1639 #define OBD_OBJECT_EOF LUSTRE_EOF
1641 #define OST_MIN_PRECREATE 32
1642 #define OST_MAX_PRECREATE 20000
1645 struct ost_id ioo_oid
; /* object ID, if multi-obj BRW */
1646 __u32 ioo_max_brw
; /* low 16 bits were o_mode before 2.4,
1647 * now (PTLRPC_BULK_OPS_COUNT - 1) in
1648 * high 16 bits in 2.4 and later
1650 __u32 ioo_bufcnt
; /* number of niobufs for this object */
1654 * NOTE: IOOBJ_MAX_BRW_BITS defines the _offset_ of the max_brw field in
1655 * ioo_max_brw, NOT the maximum number of bits in PTLRPC_BULK_OPS_BITS.
1656 * That said, ioo_max_brw is a 32-bit field so the limit is also 16 bits.
1658 #define IOOBJ_MAX_BRW_BITS 16
1659 #define ioobj_max_brw_get(ioo) (((ioo)->ioo_max_brw >> IOOBJ_MAX_BRW_BITS) + 1)
1660 #define ioobj_max_brw_set(ioo, num) \
1661 do { (ioo)->ioo_max_brw = ((num) - 1) << IOOBJ_MAX_BRW_BITS; } while (0)
1663 /* multiple of 8 bytes => can array */
1664 struct niobuf_remote
{
1670 /* lock value block communicated between the filter and llite */
1672 /* OST_LVB_ERR_INIT is needed because the return code in rc is
1673 * negative, i.e. because ((MASK + rc) & MASK) != MASK.
1675 #define OST_LVB_ERR_INIT 0xffbadbad80000000ULL
1676 #define OST_LVB_ERR_MASK 0xffbadbad00000000ULL
1677 #define OST_LVB_IS_ERR(blocks) \
1678 ((blocks & OST_LVB_ERR_MASK) == OST_LVB_ERR_MASK)
1679 #define OST_LVB_SET_ERR(blocks, rc) \
1680 do { blocks = OST_LVB_ERR_INIT + rc; } while (0)
1681 #define OST_LVB_GET_ERR(blocks) (int)(blocks - OST_LVB_ERR_INIT)
1704 * lquota data structures
1707 /* The lquota_id structure is a union of all the possible identifier types that
1708 * can be used with quota, this includes:
1711 * - a FID which can be used for per-directory quota in the future
1714 struct lu_fid qid_fid
; /* FID for per-directory quota */
1715 __u64 qid_uid
; /* user identifier */
1716 __u64 qid_gid
; /* group identifier */
1719 /* quotactl management */
1720 struct obd_quotactl
{
1722 __u32 qc_type
; /* see Q_* flag below */
1725 struct obd_dqinfo qc_dqinfo
;
1726 struct obd_dqblk qc_dqblk
;
1729 #define Q_COPY(out, in, member) (out)->member = (in)->member
1731 #define QCTL_COPY(out, in) \
1733 Q_COPY(out, in, qc_cmd); \
1734 Q_COPY(out, in, qc_type); \
1735 Q_COPY(out, in, qc_id); \
1736 Q_COPY(out, in, qc_stat); \
1737 Q_COPY(out, in, qc_dqinfo); \
1738 Q_COPY(out, in, qc_dqblk); \
1741 /* Data structures associated with the quota locks */
1743 /* Glimpse descriptor used for the index & per-ID quota locks */
1744 struct ldlm_gl_lquota_desc
{
1745 union lquota_id gl_id
; /* quota ID subject to the glimpse */
1746 __u64 gl_flags
; /* see LQUOTA_FL* below */
1747 __u64 gl_ver
; /* new index version */
1748 __u64 gl_hardlimit
; /* new hardlimit or qunit value */
1749 __u64 gl_softlimit
; /* new softlimit */
1754 /* quota glimpse flags */
1755 #define LQUOTA_FL_EDQUOT 0x1 /* user/group out of quota space on QMT */
1757 /* LVB used with quota (global and per-ID) locks */
1759 __u64 lvb_flags
; /* see LQUOTA_FL* above */
1760 __u64 lvb_id_may_rel
; /* space that might be released later */
1761 __u64 lvb_id_rel
; /* space released by the slave for this ID */
1762 __u64 lvb_id_qunit
; /* current qunit value */
1772 #define QUOTA_FIRST_OPC QUOTA_DQACQ
1781 MDS_GETATTR_NAME
= 34,
1786 MDS_DISCONNECT
= 39,
1789 MDS_PIN
= 42, /* obsolete, never used in a release */
1790 MDS_UNPIN
= 43, /* obsolete, never used in a release */
1792 MDS_DONE_WRITING
= 45, /* obsolete since 2.8.0 */
1794 MDS_QUOTACHECK
= 47, /* not used since 2.4 */
1797 MDS_SETXATTR
= 50, /* obsolete, now it's MDS_REINT op */
1799 MDS_IS_SUBDIR
= 52, /* obsolete, never used in a release */
1801 MDS_HSM_STATE_GET
= 54,
1802 MDS_HSM_STATE_SET
= 55,
1803 MDS_HSM_ACTION
= 56,
1804 MDS_HSM_PROGRESS
= 57,
1805 MDS_HSM_REQUEST
= 58,
1806 MDS_HSM_CT_REGISTER
= 59,
1807 MDS_HSM_CT_UNREGISTER
= 60,
1808 MDS_SWAP_LAYOUTS
= 61,
1812 #define MDS_FIRST_OPC MDS_GETATTR
1818 enum mdt_reint_cmd
{
1831 /* the disposition of the intent outlines what was executed */
1832 #define DISP_IT_EXECD 0x00000001
1833 #define DISP_LOOKUP_EXECD 0x00000002
1834 #define DISP_LOOKUP_NEG 0x00000004
1835 #define DISP_LOOKUP_POS 0x00000008
1836 #define DISP_OPEN_CREATE 0x00000010
1837 #define DISP_OPEN_OPEN 0x00000020
1838 #define DISP_ENQ_COMPLETE 0x00400000 /* obsolete and unused */
1839 #define DISP_ENQ_OPEN_REF 0x00800000
1840 #define DISP_ENQ_CREATE_REF 0x01000000
1841 #define DISP_OPEN_LOCK 0x02000000
1842 #define DISP_OPEN_LEASE 0x04000000
1843 #define DISP_OPEN_STRIPE 0x08000000
1844 #define DISP_OPEN_DENY 0x10000000
1846 /* INODE LOCK PARTS */
1847 #define MDS_INODELOCK_LOOKUP 0x000001 /* For namespace, dentry etc, and also
1848 * was used to protect permission (mode,
1849 * owner, group etc) before 2.4.
1851 #define MDS_INODELOCK_UPDATE 0x000002 /* size, links, timestamps */
1852 #define MDS_INODELOCK_OPEN 0x000004 /* For opened files */
1853 #define MDS_INODELOCK_LAYOUT 0x000008 /* for layout */
1855 /* The PERM bit is added int 2.4, and it is used to protect permission(mode,
1856 * owner, group, acl etc), so to separate the permission from LOOKUP lock.
1857 * Because for remote directories(in DNE), these locks will be granted by
1858 * different MDTs(different ldlm namespace).
1860 * For local directory, MDT will always grant UPDATE_LOCK|PERM_LOCK together.
1861 * For Remote directory, the master MDT, where the remote directory is, will
1862 * grant UPDATE_LOCK|PERM_LOCK, and the remote MDT, where the name entry is,
1863 * will grant LOOKUP_LOCK.
1865 #define MDS_INODELOCK_PERM 0x000010
1866 #define MDS_INODELOCK_XATTR 0x000020 /* extended attributes */
1868 #define MDS_INODELOCK_MAXSHIFT 5
1869 /* This FULL lock is useful to take on unlink sort of operations */
1870 #define MDS_INODELOCK_FULL ((1 << (MDS_INODELOCK_MAXSHIFT + 1)) - 1)
1872 /* NOTE: until Lustre 1.8.7/2.1.1 the fid_ver() was packed into name[2],
1873 * but was moved into name[1] along with the OID to avoid consuming the
1874 * name[2,3] fields that need to be used for the quota id (also a FID).
1877 LUSTRE_RES_ID_SEQ_OFF
= 0,
1878 LUSTRE_RES_ID_VER_OID_OFF
= 1,
1879 LUSTRE_RES_ID_WAS_VER_OFF
= 2, /* see note above */
1880 LUSTRE_RES_ID_QUOTA_SEQ_OFF
= 2,
1881 LUSTRE_RES_ID_QUOTA_VER_OID_OFF
= 3,
1882 LUSTRE_RES_ID_HSH_OFF
= 3
1885 #define MDS_STATUS_CONN 1
1886 #define MDS_STATUS_LOV 2
1888 /* these should be identical to their EXT4_*_FL counterparts, they are
1889 * redefined here only to avoid dragging in fs/ext4/ext4.h
1891 #define LUSTRE_SYNC_FL 0x00000008 /* Synchronous updates */
1892 #define LUSTRE_IMMUTABLE_FL 0x00000010 /* Immutable file */
1893 #define LUSTRE_APPEND_FL 0x00000020 /* writes to file may only append */
1894 #define LUSTRE_NODUMP_FL 0x00000040 /* do not dump file */
1895 #define LUSTRE_NOATIME_FL 0x00000080 /* do not update atime */
1896 #define LUSTRE_INDEX_FL 0x00001000 /* hash-indexed directory */
1897 #define LUSTRE_DIRSYNC_FL 0x00010000 /* dirsync behaviour (dir only) */
1898 #define LUSTRE_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/
1899 #define LUSTRE_DIRECTIO_FL 0x00100000 /* Use direct i/o */
1900 #define LUSTRE_INLINE_DATA_FL 0x10000000 /* Inode has inline data. */
1902 /* Convert wire LUSTRE_*_FL to corresponding client local VFS S_* values
1903 * for the client inode i_flags. The LUSTRE_*_FL are the Lustre wire
1904 * protocol equivalents of LDISKFS_*_FL values stored on disk, while
1905 * the S_* flags are kernel-internal values that change between kernel
1906 * versions. These flags are set/cleared via FSFILT_IOC_{GET,SET}_FLAGS.
1907 * See b=16526 for a full history.
1909 static inline int ll_ext_to_inode_flags(int flags
)
1911 return (((flags
& LUSTRE_SYNC_FL
) ? S_SYNC
: 0) |
1912 ((flags
& LUSTRE_NOATIME_FL
) ? S_NOATIME
: 0) |
1913 ((flags
& LUSTRE_APPEND_FL
) ? S_APPEND
: 0) |
1914 ((flags
& LUSTRE_DIRSYNC_FL
) ? S_DIRSYNC
: 0) |
1915 ((flags
& LUSTRE_IMMUTABLE_FL
) ? S_IMMUTABLE
: 0));
1918 static inline int ll_inode_to_ext_flags(int iflags
)
1920 return (((iflags
& S_SYNC
) ? LUSTRE_SYNC_FL
: 0) |
1921 ((iflags
& S_NOATIME
) ? LUSTRE_NOATIME_FL
: 0) |
1922 ((iflags
& S_APPEND
) ? LUSTRE_APPEND_FL
: 0) |
1923 ((iflags
& S_DIRSYNC
) ? LUSTRE_DIRSYNC_FL
: 0) |
1924 ((iflags
& S_IMMUTABLE
) ? LUSTRE_IMMUTABLE_FL
: 0));
1927 /* 64 possible states */
1928 enum md_transient_state
{
1929 MS_RESTORE
= (1 << 0), /* restore is running */
1933 struct lu_fid mbo_fid1
;
1934 struct lu_fid mbo_fid2
;
1935 struct lustre_handle mbo_handle
;
1937 __u64 mbo_size
; /* Offset, in the case of MDS_READPAGE */
1941 __u64 mbo_blocks
; /* XID, in the case of MDS_READPAGE */
1943 __u64 mbo_t_state
; /* transient file state defined in
1944 * enum md_transient_state
1945 * was "ino" until 2.4.0
1949 __u32 mbo_capability
;
1953 __u32 mbo_flags
; /* LUSTRE_*_FL file attributes */
1955 __u32 mbo_nlink
; /* #bytes to read in the case of MDS_READPAGE */
1956 __u32 mbo_unused2
; /* was "generation" until 2.4.0 */
1958 __u32 mbo_eadatasize
;
1960 __u32 mbo_max_mdsize
;
1961 __u32 mbo_unused3
; /* was max_cookiesize until 2.8 */
1962 __u32 mbo_uid_h
; /* high 32-bits of uid, for FUID */
1963 __u32 mbo_gid_h
; /* high 32-bits of gid, for FUID */
1964 __u32 mbo_padding_5
; /* also fix lustre_swab_mdt_body */
1965 __u64 mbo_padding_6
;
1966 __u64 mbo_padding_7
;
1967 __u64 mbo_padding_8
;
1968 __u64 mbo_padding_9
;
1969 __u64 mbo_padding_10
;
1972 struct mdt_ioepoch
{
1973 struct lustre_handle mio_handle
;
1974 __u64 mio_unused1
; /* was ioepoch */
1975 __u32 mio_unused2
; /* was flags */
1979 /* permissions for md_perm.mp_perm */
1981 CFS_SETUID_PERM
= 0x01,
1982 CFS_SETGID_PERM
= 0x02,
1983 CFS_SETGRP_PERM
= 0x04,
1986 struct mdt_rec_setattr
{
1996 __u32 sa_padding_1_h
;
1997 struct lu_fid sa_fid
;
2006 __u32 sa_attr_flags
;
2008 __u32 sa_bias
; /* some operation flags */
2015 * Attribute flags used in mdt_rec_setattr::sa_valid.
2016 * The kernel's #defines for ATTR_* should not be used over the network
2017 * since the client and MDS may run different kernels (see bug 13828)
2018 * Therefore, we should only use MDS_ATTR_* attributes for sa_valid.
2020 #define MDS_ATTR_MODE 0x1ULL /* = 1 */
2021 #define MDS_ATTR_UID 0x2ULL /* = 2 */
2022 #define MDS_ATTR_GID 0x4ULL /* = 4 */
2023 #define MDS_ATTR_SIZE 0x8ULL /* = 8 */
2024 #define MDS_ATTR_ATIME 0x10ULL /* = 16 */
2025 #define MDS_ATTR_MTIME 0x20ULL /* = 32 */
2026 #define MDS_ATTR_CTIME 0x40ULL /* = 64 */
2027 #define MDS_ATTR_ATIME_SET 0x80ULL /* = 128 */
2028 #define MDS_ATTR_MTIME_SET 0x100ULL /* = 256 */
2029 #define MDS_ATTR_FORCE 0x200ULL /* = 512, Not a change, but a change it */
2030 #define MDS_ATTR_ATTR_FLAG 0x400ULL /* = 1024 */
2031 #define MDS_ATTR_KILL_SUID 0x800ULL /* = 2048 */
2032 #define MDS_ATTR_KILL_SGID 0x1000ULL /* = 4096 */
2033 #define MDS_ATTR_CTIME_SET 0x2000ULL /* = 8192 */
2034 #define MDS_ATTR_FROM_OPEN 0x4000ULL /* = 16384, called from open path,
2037 #define MDS_ATTR_BLOCKS 0x8000ULL /* = 32768 */
2039 #define MDS_FMODE_CLOSED 00000000
2040 #define MDS_FMODE_EXEC 00000004
2041 /* MDS_FMODE_EPOCH 01000000 obsolete since 2.8.0 */
2042 /* MDS_FMODE_TRUNC 02000000 obsolete since 2.8.0 */
2043 /* MDS_FMODE_SOM 04000000 obsolete since 2.8.0 */
2045 #define MDS_OPEN_CREATED 00000010
2046 #define MDS_OPEN_CROSS 00000020
2048 #define MDS_OPEN_CREAT 00000100
2049 #define MDS_OPEN_EXCL 00000200
2050 #define MDS_OPEN_TRUNC 00001000
2051 #define MDS_OPEN_APPEND 00002000
2052 #define MDS_OPEN_SYNC 00010000
2053 #define MDS_OPEN_DIRECTORY 00200000
2055 #define MDS_OPEN_BY_FID 040000000 /* open_by_fid for known object */
2056 #define MDS_OPEN_DELAY_CREATE 0100000000 /* delay initial object create */
2057 #define MDS_OPEN_OWNEROVERRIDE 0200000000 /* NFSD rw-reopen ro file for owner */
2058 #define MDS_OPEN_JOIN_FILE 0400000000 /* open for join file.
2059 * We do not support JOIN FILE
2060 * anymore, reserve this flags
2061 * just for preventing such bit
2065 #define MDS_OPEN_LOCK 04000000000 /* This open requires open lock */
2066 #define MDS_OPEN_HAS_EA 010000000000 /* specify object create pattern */
2067 #define MDS_OPEN_HAS_OBJS 020000000000 /* Just set the EA the obj exist */
2068 #define MDS_OPEN_NORESTORE 0100000000000ULL /* Do not restore file at open */
2069 #define MDS_OPEN_NEWSTRIPE 0200000000000ULL /* New stripe needed (restripe or
2071 #define MDS_OPEN_VOLATILE 0400000000000ULL /* File is volatile = created
2073 #define MDS_OPEN_LEASE 01000000000000ULL /* Open the file and grant lease
2074 * delegation, succeed if it's not
2075 * being opened with conflict mode.
2077 #define MDS_OPEN_RELEASE 02000000000000ULL /* Open the file for HSM release */
2079 #define MDS_OPEN_FL_INTERNAL (MDS_OPEN_HAS_EA | MDS_OPEN_HAS_OBJS | \
2080 MDS_OPEN_OWNEROVERRIDE | MDS_OPEN_LOCK | \
2081 MDS_OPEN_BY_FID | MDS_OPEN_LEASE | \
2085 MDS_CHECK_SPLIT
= 1 << 0,
2086 MDS_CROSS_REF
= 1 << 1,
2087 MDS_VTX_BYPASS
= 1 << 2,
2088 MDS_PERM_BYPASS
= 1 << 3,
2089 /* MDS_SOM = 1 << 4, obsolete since 2.8.0 */
2090 MDS_QUOTA_IGNORE
= 1 << 5,
2091 MDS_CLOSE_CLEANUP
= 1 << 6,
2092 MDS_KEEP_ORPHAN
= 1 << 7,
2093 MDS_RECOV_OPEN
= 1 << 8,
2094 MDS_DATA_MODIFIED
= 1 << 9,
2095 MDS_CREATE_VOLATILE
= 1 << 10,
2096 MDS_OWNEROVERRIDE
= 1 << 11,
2097 MDS_HSM_RELEASE
= 1 << 12,
2098 MDS_RENAME_MIGRATE
= BIT(13),
2099 MDS_CLOSE_LAYOUT_SWAP
= BIT(14),
2102 /* instance of mdt_reint_rec */
2103 struct mdt_rec_create
{
2111 __u32 cr_suppgid1_h
;
2113 __u32 cr_suppgid2_h
;
2114 struct lu_fid cr_fid1
;
2115 struct lu_fid cr_fid2
;
2116 struct lustre_handle cr_old_handle
; /* handle in case of open replay */
2120 __u64 cr_padding_1
; /* rr_blocks */
2123 /* use of helpers set/get_mrc_cr_flags() is needed to access
2124 * 64 bits cr_flags [cr_flags_l, cr_flags_h], this is done to
2125 * extend cr_flags size without breaking 1.8 compat
2127 __u32 cr_flags_l
; /* for use with open, low 32 bits */
2128 __u32 cr_flags_h
; /* for use with open, high 32 bits */
2129 __u32 cr_umask
; /* umask for create */
2130 __u32 cr_padding_4
; /* rr_padding_4 */
2133 static inline void set_mrc_cr_flags(struct mdt_rec_create
*mrc
, __u64 flags
)
2135 mrc
->cr_flags_l
= (__u32
)(flags
& 0xFFFFFFFFUll
);
2136 mrc
->cr_flags_h
= (__u32
)(flags
>> 32);
2139 static inline __u64
get_mrc_cr_flags(struct mdt_rec_create
*mrc
)
2141 return ((__u64
)(mrc
->cr_flags_l
) | ((__u64
)mrc
->cr_flags_h
<< 32));
2144 /* instance of mdt_reint_rec */
2145 struct mdt_rec_link
{
2153 __u32 lk_suppgid1_h
;
2155 __u32 lk_suppgid2_h
;
2156 struct lu_fid lk_fid1
;
2157 struct lu_fid lk_fid2
;
2159 __u64 lk_padding_1
; /* rr_atime */
2160 __u64 lk_padding_2
; /* rr_ctime */
2161 __u64 lk_padding_3
; /* rr_size */
2162 __u64 lk_padding_4
; /* rr_blocks */
2164 __u32 lk_padding_5
; /* rr_mode */
2165 __u32 lk_padding_6
; /* rr_flags */
2166 __u32 lk_padding_7
; /* rr_padding_2 */
2167 __u32 lk_padding_8
; /* rr_padding_3 */
2168 __u32 lk_padding_9
; /* rr_padding_4 */
2171 /* instance of mdt_reint_rec */
2172 struct mdt_rec_unlink
{
2180 __u32 ul_suppgid1_h
;
2182 __u32 ul_suppgid2_h
;
2183 struct lu_fid ul_fid1
;
2184 struct lu_fid ul_fid2
;
2186 __u64 ul_padding_2
; /* rr_atime */
2187 __u64 ul_padding_3
; /* rr_ctime */
2188 __u64 ul_padding_4
; /* rr_size */
2189 __u64 ul_padding_5
; /* rr_blocks */
2192 __u32 ul_padding_6
; /* rr_flags */
2193 __u32 ul_padding_7
; /* rr_padding_2 */
2194 __u32 ul_padding_8
; /* rr_padding_3 */
2195 __u32 ul_padding_9
; /* rr_padding_4 */
2198 /* instance of mdt_reint_rec */
2199 struct mdt_rec_rename
{
2207 __u32 rn_suppgid1_h
;
2209 __u32 rn_suppgid2_h
;
2210 struct lu_fid rn_fid1
;
2211 struct lu_fid rn_fid2
;
2213 __u64 rn_padding_1
; /* rr_atime */
2214 __u64 rn_padding_2
; /* rr_ctime */
2215 __u64 rn_padding_3
; /* rr_size */
2216 __u64 rn_padding_4
; /* rr_blocks */
2217 __u32 rn_bias
; /* some operation flags */
2218 __u32 rn_mode
; /* cross-ref rename has mode */
2219 __u32 rn_padding_5
; /* rr_flags */
2220 __u32 rn_padding_6
; /* rr_padding_2 */
2221 __u32 rn_padding_7
; /* rr_padding_3 */
2222 __u32 rn_padding_8
; /* rr_padding_4 */
2225 /* instance of mdt_reint_rec */
2226 struct mdt_rec_setxattr
{
2234 __u32 sx_suppgid1_h
;
2236 __u32 sx_suppgid2_h
;
2237 struct lu_fid sx_fid
;
2238 __u64 sx_padding_1
; /* These three are rr_fid2 */
2243 __u64 sx_padding_5
; /* rr_ctime */
2244 __u64 sx_padding_6
; /* rr_size */
2245 __u64 sx_padding_7
; /* rr_blocks */
2248 __u32 sx_padding_8
; /* rr_flags */
2249 __u32 sx_padding_9
; /* rr_padding_2 */
2250 __u32 sx_padding_10
; /* rr_padding_3 */
2251 __u32 sx_padding_11
; /* rr_padding_4 */
2255 * mdt_rec_reint is the template for all mdt_reint_xxx structures.
2256 * Do NOT change the size of various members, otherwise the value
2257 * will be broken in lustre_swab_mdt_rec_reint().
2259 * If you add new members in other mdt_reint_xxx structures and need to use the
2260 * rr_padding_x fields, then update lustre_swab_mdt_rec_reint() also.
2262 struct mdt_rec_reint
{
2270 __u32 rr_suppgid1_h
;
2272 __u32 rr_suppgid2_h
;
2273 struct lu_fid rr_fid1
;
2274 struct lu_fid rr_fid2
;
2285 __u32 rr_padding_4
; /* also fix lustre_swab_mdt_rec_reint */
2288 /* lmv structures */
2290 __u32 ld_tgt_count
; /* how many MDS's */
2291 __u32 ld_active_tgt_count
; /* how many active */
2292 __u32 ld_default_stripe_count
; /* how many objects are used */
2293 __u32 ld_pattern
; /* default hash pattern */
2294 __u64 ld_default_hash_size
;
2295 __u64 ld_padding_1
; /* also fix lustre_swab_lmv_desc */
2296 __u32 ld_padding_2
; /* also fix lustre_swab_lmv_desc */
2297 __u32 ld_qos_maxage
; /* in second */
2298 __u32 ld_padding_3
; /* also fix lustre_swab_lmv_desc */
2299 __u32 ld_padding_4
; /* also fix lustre_swab_lmv_desc */
2300 struct obd_uuid ld_uuid
;
2303 /* LMV layout EA, and it will be stored both in master and slave object */
2304 struct lmv_mds_md_v1
{
2306 __u32 lmv_stripe_count
;
2307 __u32 lmv_master_mdt_index
; /* On master object, it is master
2308 * MDT index, on slave object, it
2309 * is stripe index of the slave obj
2311 __u32 lmv_hash_type
; /* dir stripe policy, i.e. indicate
2312 * which hash function to be used,
2313 * Note: only lower 16 bits is being
2314 * used for now. Higher 16 bits will
2315 * be used to mark the object status,
2316 * for example migrating or dead.
2318 __u32 lmv_layout_version
; /* Used for directory restriping */
2322 char lmv_pool_name
[LOV_MAXPOOLNAME
+ 1];/* pool name */
2323 struct lu_fid lmv_stripe_fids
[0]; /* FIDs for each stripe */
2326 #define LMV_MAGIC_V1 0x0CD20CD0 /* normal stripe lmv magic */
2327 #define LMV_MAGIC LMV_MAGIC_V1
2329 /* #define LMV_USER_MAGIC 0x0CD30CD0 */
2330 #define LMV_MAGIC_STRIPE 0x0CD40CD0 /* magic for dir sub_stripe */
2333 *Right now only the lower part(0-16bits) of lmv_hash_type is being used,
2334 * and the higher part will be the flag to indicate the status of object,
2335 * for example the object is being migrated. And the hash function
2336 * might be interpreted differently with different flags.
2338 #define LMV_HASH_TYPE_MASK 0x0000ffff
2340 #define LMV_HASH_FLAG_MIGRATION 0x80000000
2341 #define LMV_HASH_FLAG_DEAD 0x40000000
2344 * The FNV-1a hash algorithm is as follows:
2345 * hash = FNV_offset_basis
2346 * for each octet_of_data to be hashed
2347 * hash = hash XOR octet_of_data
2348 * hash = hash × FNV_prime
2350 * http://en.wikipedia.org/wiki/Fowler–Noll–Vo_hash_function#FNV-1a_hash
2352 * http://www.isthe.com/chongo/tech/comp/fnv/index.html#FNV-reference-source
2353 * FNV_prime is 2^40 + 2^8 + 0xb3 = 0x100000001b3ULL
2355 #define LUSTRE_FNV_1A_64_PRIME 0x100000001b3ULL
2356 #define LUSTRE_FNV_1A_64_OFFSET_BIAS 0xcbf29ce484222325ULL
2357 static inline __u64
lustre_hash_fnv_1a_64(const void *buf
, size_t size
)
2359 __u64 hash
= LUSTRE_FNV_1A_64_OFFSET_BIAS
;
2360 const unsigned char *p
= buf
;
2363 for (i
= 0; i
< size
; i
++) {
2365 hash
*= LUSTRE_FNV_1A_64_PRIME
;
2373 struct lmv_mds_md_v1 lmv_md_v1
;
2374 struct lmv_user_md lmv_user_md
;
2377 static inline ssize_t
lmv_mds_md_size(int stripe_count
, unsigned int lmm_magic
)
2379 ssize_t len
= -EINVAL
;
2381 switch (lmm_magic
) {
2382 case LMV_MAGIC_V1
: {
2383 struct lmv_mds_md_v1
*lmm1
;
2385 len
= sizeof(*lmm1
);
2386 len
+= stripe_count
* sizeof(lmm1
->lmv_stripe_fids
[0]);
2394 static inline int lmv_mds_md_stripe_count_get(const union lmv_mds_md
*lmm
)
2396 switch (le32_to_cpu(lmm
->lmv_magic
)) {
2398 return le32_to_cpu(lmm
->lmv_md_v1
.lmv_stripe_count
);
2399 case LMV_USER_MAGIC
:
2400 return le32_to_cpu(lmm
->lmv_user_md
.lum_stripe_count
);
2406 static inline int lmv_mds_md_stripe_count_set(union lmv_mds_md
*lmm
,
2407 unsigned int stripe_count
)
2411 switch (le32_to_cpu(lmm
->lmv_magic
)) {
2413 lmm
->lmv_md_v1
.lmv_stripe_count
= cpu_to_le32(stripe_count
);
2415 case LMV_USER_MAGIC
:
2416 lmm
->lmv_user_md
.lum_stripe_count
= cpu_to_le32(stripe_count
);
2429 FLD_FIRST_OPC
= FLD_QUERY
2435 SEQ_FIRST_OPC
= SEQ_QUERY
2439 SEQ_ALLOC_SUPER
= 0,
2450 * LOV data structures
2453 #define LOV_MAX_UUID_BUFFER_SIZE 8192
2454 /* The size of the buffer the lov/mdc reserves for the
2455 * array of UUIDs returned by the MDS. With the current
2456 * protocol, this will limit the max number of OSTs per LOV
2459 #define LOV_DESC_MAGIC 0xB0CCDE5C
2460 #define LOV_DESC_QOS_MAXAGE_DEFAULT 5 /* Seconds */
2461 #define LOV_DESC_STRIPE_SIZE_DEFAULT (1 << LNET_MTU_BITS)
2463 /* LOV settings descriptor (should only contain static info) */
2465 __u32 ld_tgt_count
; /* how many OBD's */
2466 __u32 ld_active_tgt_count
; /* how many active */
2467 __u32 ld_default_stripe_count
; /* how many objects are used */
2468 __u32 ld_pattern
; /* default PATTERN_RAID0 */
2469 __u64 ld_default_stripe_size
; /* in bytes */
2470 __u64 ld_default_stripe_offset
; /* in bytes */
2471 __u32 ld_padding_0
; /* unused */
2472 __u32 ld_qos_maxage
; /* in second */
2473 __u32 ld_padding_1
; /* also fix lustre_swab_lov_desc */
2474 __u32 ld_padding_2
; /* also fix lustre_swab_lov_desc */
2475 struct obd_uuid ld_uuid
;
2478 #define ld_magic ld_active_tgt_count /* for swabbing from llogs */
2483 /* opcodes -- MUST be distinct from OST/MDS opcodes */
2488 LDLM_BL_CALLBACK
= 104,
2489 LDLM_CP_CALLBACK
= 105,
2490 LDLM_GL_CALLBACK
= 106,
2491 LDLM_SET_INFO
= 107,
2494 #define LDLM_FIRST_OPC LDLM_ENQUEUE
2496 #define RES_NAME_SIZE 4
2497 struct ldlm_res_id
{
2498 __u64 name
[RES_NAME_SIZE
];
2501 #define DLDLMRES "[%#llx:%#llx:%#llx].%llx"
2502 #define PLDLMRES(res) (res)->lr_name.name[0], (res)->lr_name.name[1], \
2503 (res)->lr_name.name[2], (res)->lr_name.name[3]
2505 static inline bool ldlm_res_eq(const struct ldlm_res_id
*res0
,
2506 const struct ldlm_res_id
*res1
)
2508 return !memcmp(res0
, res1
, sizeof(*res0
));
2525 #define LCK_MODE_NUM 8
2535 #define LDLM_MIN_TYPE LDLM_PLAIN
2537 struct ldlm_extent
{
2543 static inline int ldlm_extent_overlap(const struct ldlm_extent
*ex1
,
2544 const struct ldlm_extent
*ex2
)
2546 return (ex1
->start
<= ex2
->end
) && (ex2
->start
<= ex1
->end
);
2549 /* check if @ex1 contains @ex2 */
2550 static inline int ldlm_extent_contain(const struct ldlm_extent
*ex1
,
2551 const struct ldlm_extent
*ex2
)
2553 return (ex1
->start
<= ex2
->start
) && (ex1
->end
>= ex2
->end
);
2556 struct ldlm_inodebits
{
2560 struct ldlm_flock_wire
{
2568 /* it's important that the fields of the ldlm_extent structure match
2569 * the first fields of the ldlm_flock structure because there is only
2570 * one ldlm_swab routine to process the ldlm_policy_data_t union. if
2571 * this ever changes we will need to swab the union differently based
2572 * on the resource type.
2575 union ldlm_wire_policy_data
{
2576 struct ldlm_extent l_extent
;
2577 struct ldlm_flock_wire l_flock
;
2578 struct ldlm_inodebits l_inodebits
;
2581 union ldlm_gl_desc
{
2582 struct ldlm_gl_lquota_desc lquota_desc
;
2585 enum ldlm_intent_flags
{
2588 IT_OPEN_CREAT
= BIT(1) | BIT(0),
2589 IT_READDIR
= BIT(2),
2590 IT_GETATTR
= BIT(3),
2594 IT_GETXATTR
= BIT(7),
2597 IT_LAYOUT
= BIT(10),
2598 IT_QUOTA_DQACQ
= BIT(11),
2599 IT_QUOTA_CONN
= BIT(12),
2600 IT_SETXATTR
= BIT(13),
2603 struct ldlm_intent
{
2607 struct ldlm_resource_desc
{
2608 enum ldlm_type lr_type
;
2609 __u32 lr_padding
; /* also fix lustre_swab_ldlm_resource_desc */
2610 struct ldlm_res_id lr_name
;
2613 struct ldlm_lock_desc
{
2614 struct ldlm_resource_desc l_resource
;
2615 enum ldlm_mode l_req_mode
;
2616 enum ldlm_mode l_granted_mode
;
2617 union ldlm_wire_policy_data l_policy_data
;
2620 #define LDLM_LOCKREQ_HANDLES 2
2621 #define LDLM_ENQUEUE_CANCEL_OFF 1
2623 struct ldlm_request
{
2626 struct ldlm_lock_desc lock_desc
;
2627 struct lustre_handle lock_handle
[LDLM_LOCKREQ_HANDLES
];
2630 /* If LDLM_ENQUEUE, 1 slot is already occupied, 1 is available.
2631 * Otherwise, 2 are available.
2633 #define ldlm_request_bufsize(count, type) \
2635 int _avail = LDLM_LOCKREQ_HANDLES; \
2636 _avail -= (type == LDLM_ENQUEUE ? LDLM_ENQUEUE_CANCEL_OFF : 0); \
2637 sizeof(struct ldlm_request) + \
2638 (count > _avail ? count - _avail : 0) * \
2639 sizeof(struct lustre_handle); \
2644 __u32 lock_padding
; /* also fix lustre_swab_ldlm_reply */
2645 struct ldlm_lock_desc lock_desc
;
2646 struct lustre_handle lock_handle
;
2647 __u64 lock_policy_res1
;
2648 __u64 lock_policy_res2
;
2651 #define ldlm_flags_to_wire(flags) ((__u32)(flags))
2652 #define ldlm_flags_from_wire(flags) ((__u64)(flags))
2655 * Opcodes for mountconf (mgs and mgc)
2660 MGS_EXCEPTION
, /* node died, etc. */
2661 MGS_TARGET_REG
, /* whenever target starts up */
2667 #define MGS_FIRST_OPC MGS_CONNECT
2669 #define MGS_PARAM_MAXLEN 1024
2670 #define KEY_SET_INFO "set_info"
2672 struct mgs_send_param
{
2673 char mgs_param
[MGS_PARAM_MAXLEN
];
2676 /* We pass this info to the MGS so it can write config logs */
2677 #define MTI_NAME_MAXLEN 64
2678 #define MTI_PARAM_MAXLEN 4096
2679 #define MTI_NIDS_MAX 32
2680 struct mgs_target_info
{
2681 __u32 mti_lustre_ver
;
2682 __u32 mti_stripe_index
;
2683 __u32 mti_config_ver
;
2685 __u32 mti_nid_count
;
2686 __u32 mti_instance
; /* Running instance of target */
2687 char mti_fsname
[MTI_NAME_MAXLEN
];
2688 char mti_svname
[MTI_NAME_MAXLEN
];
2689 char mti_uuid
[sizeof(struct obd_uuid
)];
2690 __u64 mti_nids
[MTI_NIDS_MAX
]; /* host nids (lnet_nid_t)*/
2691 char mti_params
[MTI_PARAM_MAXLEN
];
2694 struct mgs_nidtbl_entry
{
2695 __u64 mne_version
; /* table version of this entry */
2696 __u32 mne_instance
; /* target instance # */
2697 __u32 mne_index
; /* target index */
2698 __u32 mne_length
; /* length of this entry - by bytes */
2699 __u8 mne_type
; /* target type LDD_F_SV_TYPE_OST/MDT */
2700 __u8 mne_nid_type
; /* type of nid(mbz). for ipv6. */
2701 __u8 mne_nid_size
; /* size of each NID, by bytes */
2702 __u8 mne_nid_count
; /* # of NIDs in buffer */
2704 lnet_nid_t nids
[0]; /* variable size buffer for NIDs. */
2708 struct mgs_config_body
{
2709 char mcb_name
[MTI_NAME_MAXLEN
]; /* logname */
2710 __u64 mcb_offset
; /* next index of config log to request */
2711 __u16 mcb_type
; /* type of log: CONFIG_T_[CONFIG|RECOVER] */
2713 __u8 mcb_bits
; /* bits unit size of config log */
2714 __u32 mcb_units
; /* # of units for bulk transfer */
2717 struct mgs_config_res
{
2718 __u64 mcr_offset
; /* index of last config log */
2719 __u64 mcr_size
; /* size of the log */
2722 /* Config marker flags (in config log) */
2723 #define CM_START 0x01
2725 #define CM_SKIP 0x04
2726 #define CM_UPGRADE146 0x08
2727 #define CM_EXCLUDE 0x10
2728 #define CM_START_SKIP (CM_START | CM_SKIP)
2731 __u32 cm_step
; /* aka config version */
2733 __u32 cm_vers
; /* lustre release version number */
2734 __u32 cm_padding
; /* 64 bit align */
2735 __s64 cm_createtime
; /*when this record was first created */
2736 __s64 cm_canceltime
; /*when this record is no longer valid*/
2737 char cm_tgtname
[MTI_NAME_MAXLEN
];
2738 char cm_comment
[MTI_NAME_MAXLEN
];
2742 * Opcodes for multiple servers.
2748 OBD_QC_CALLBACK
, /* not used since 2.4 */
2752 #define OBD_FIRST_OPC OBD_PING
2755 * llog contexts indices.
2757 * There is compatibility problem with indexes below, they are not
2758 * continuous and must keep their numbers for compatibility needs.
2759 * See LU-5218 for details.
2762 LLOG_CONFIG_ORIG_CTXT
= 0,
2763 LLOG_CONFIG_REPL_CTXT
= 1,
2764 LLOG_MDS_OST_ORIG_CTXT
= 2,
2765 LLOG_MDS_OST_REPL_CTXT
= 3, /* kept just to avoid re-assignment */
2766 LLOG_SIZE_ORIG_CTXT
= 4,
2767 LLOG_SIZE_REPL_CTXT
= 5,
2768 LLOG_TEST_ORIG_CTXT
= 8,
2769 LLOG_TEST_REPL_CTXT
= 9, /* kept just to avoid re-assignment */
2770 LLOG_CHANGELOG_ORIG_CTXT
= 12, /**< changelog generation on mdd */
2771 LLOG_CHANGELOG_REPL_CTXT
= 13, /**< changelog access on clients */
2772 /* for multiple changelog consumers */
2773 LLOG_CHANGELOG_USER_ORIG_CTXT
= 14,
2774 LLOG_AGENT_ORIG_CTXT
= 15, /**< agent requests generation on cdt */
2778 /** Identifier for a single log object */
2780 struct ost_id lgl_oi
;
2784 /** Records written to the CATALOGS list */
2785 #define CATLIST "CATALOGS"
2787 struct llog_logid lci_logid
;
2793 /* Log data record types - there is no specific reason that these need to
2794 * be related to the RPC opcodes, but no reason not to (may be handy later?)
2796 #define LLOG_OP_MAGIC 0x10600000
2797 #define LLOG_OP_MASK 0xfff00000
2800 LLOG_PAD_MAGIC
= LLOG_OP_MAGIC
| 0x00000,
2801 OST_SZ_REC
= LLOG_OP_MAGIC
| 0x00f00,
2802 /* OST_RAID1_REC = LLOG_OP_MAGIC | 0x01000, never used */
2803 MDS_UNLINK_REC
= LLOG_OP_MAGIC
| 0x10000 | (MDS_REINT
<< 8) |
2804 REINT_UNLINK
, /* obsolete after 2.5.0 */
2805 MDS_UNLINK64_REC
= LLOG_OP_MAGIC
| 0x90000 | (MDS_REINT
<< 8) |
2807 /* MDS_SETATTR_REC = LLOG_OP_MAGIC | 0x12401, obsolete 1.8.0 */
2808 MDS_SETATTR64_REC
= LLOG_OP_MAGIC
| 0x90000 | (MDS_REINT
<< 8) |
2810 OBD_CFG_REC
= LLOG_OP_MAGIC
| 0x20000,
2811 /* PTL_CFG_REC = LLOG_OP_MAGIC | 0x30000, obsolete 1.4.0 */
2812 LLOG_GEN_REC
= LLOG_OP_MAGIC
| 0x40000,
2813 /* LLOG_JOIN_REC = LLOG_OP_MAGIC | 0x50000, obsolete 1.8.0 */
2814 CHANGELOG_REC
= LLOG_OP_MAGIC
| 0x60000,
2815 CHANGELOG_USER_REC
= LLOG_OP_MAGIC
| 0x70000,
2816 HSM_AGENT_REC
= LLOG_OP_MAGIC
| 0x80000,
2817 LLOG_HDR_MAGIC
= LLOG_OP_MAGIC
| 0x45539,
2818 LLOG_LOGID_MAGIC
= LLOG_OP_MAGIC
| 0x4553b,
2821 #define LLOG_REC_HDR_NEEDS_SWABBING(r) \
2822 (((r)->lrh_type & __swab32(LLOG_OP_MASK)) == __swab32(LLOG_OP_MAGIC))
2824 /** Log record header - stored in little endian order.
2825 * Each record must start with this struct, end with a llog_rec_tail,
2826 * and be a multiple of 256 bits in size.
2828 struct llog_rec_hdr
{
2835 struct llog_rec_tail
{
2840 /* Where data follow just after header */
2841 #define REC_DATA(ptr) \
2842 ((void *)((char *)ptr + sizeof(struct llog_rec_hdr)))
2844 #define REC_DATA_LEN(rec) \
2845 (rec->lrh_len - sizeof(struct llog_rec_hdr) - \
2846 sizeof(struct llog_rec_tail))
2848 struct llog_logid_rec
{
2849 struct llog_rec_hdr lid_hdr
;
2850 struct llog_logid lid_id
;
2854 struct llog_rec_tail lid_tail
;
2857 struct llog_unlink_rec
{
2858 struct llog_rec_hdr lur_hdr
;
2862 struct llog_rec_tail lur_tail
;
2865 struct llog_unlink64_rec
{
2866 struct llog_rec_hdr lur_hdr
;
2867 struct lu_fid lur_fid
;
2868 __u32 lur_count
; /* to destroy the lost precreated */
2872 struct llog_rec_tail lur_tail
;
2875 struct llog_setattr64_rec
{
2876 struct llog_rec_hdr lsr_hdr
;
2877 struct ost_id lsr_oi
;
2883 struct llog_rec_tail lsr_tail
;
2886 struct llog_size_change_rec
{
2887 struct llog_rec_hdr lsc_hdr
;
2888 struct ll_fid lsc_fid
;
2893 struct llog_rec_tail lsc_tail
;
2896 /* changelog llog name, needed by client replicators */
2897 #define CHANGELOG_CATALOG "changelog_catalog"
2899 struct changelog_setinfo
{
2904 /** changelog record */
2905 struct llog_changelog_rec
{
2906 struct llog_rec_hdr cr_hdr
;
2907 struct changelog_rec cr
; /**< Variable length field */
2908 struct llog_rec_tail cr_do_not_use
; /**< for_sizezof_only */
2911 struct llog_changelog_user_rec
{
2912 struct llog_rec_hdr cur_hdr
;
2916 struct llog_rec_tail cur_tail
;
2919 enum agent_req_status
{
2927 static inline const char *agent_req_status2name(const enum agent_req_status ars
)
2945 static inline bool agent_req_in_final_state(enum agent_req_status ars
)
2947 return ((ars
== ARS_SUCCEED
) || (ars
== ARS_FAILED
) ||
2948 (ars
== ARS_CANCELED
));
2951 struct llog_agent_req_rec
{
2952 struct llog_rec_hdr arr_hdr
; /**< record header */
2953 __u32 arr_status
; /**< status of the request */
2957 __u32 arr_archive_id
; /**< backend archive number */
2958 __u64 arr_flags
; /**< req flags */
2959 __u64 arr_compound_id
;/**< compound cookie */
2960 __u64 arr_req_create
; /**< req. creation time */
2961 __u64 arr_req_change
; /**< req. status change time */
2962 struct hsm_action_item arr_hai
; /**< req. to the agent */
2963 struct llog_rec_tail arr_tail
; /**< record tail for_sizezof_only */
2966 /* Old llog gen for compatibility */
2972 struct llog_gen_rec
{
2973 struct llog_rec_hdr lgr_hdr
;
2974 struct llog_gen lgr_gen
;
2978 struct llog_rec_tail lgr_tail
;
2981 /* flags for the logs */
2983 LLOG_F_ZAP_WHEN_EMPTY
= 0x1,
2984 LLOG_F_IS_CAT
= 0x2,
2985 LLOG_F_IS_PLAIN
= 0x4,
2986 LLOG_F_EXT_JOBID
= BIT(3),
2987 LLOG_F_IS_FIXSIZE
= BIT(4),
2990 * Note: Flags covered by LLOG_F_EXT_MASK will be inherited from
2991 * catlog to plain log, so do not add LLOG_F_IS_FIXSIZE here,
2992 * because the catlog record is usually fixed size, but its plain
2993 * log record can be variable
2995 LLOG_F_EXT_MASK
= LLOG_F_EXT_JOBID
,
2998 /* On-disk header structure of each log object, stored in little endian order */
2999 #define LLOG_MIN_CHUNK_SIZE 8192
3000 #define LLOG_HEADER_SIZE (96) /* sizeof (llog_log_hdr) +
3001 * sizeof(llh_tail) - sizeof(llh_bitmap)
3003 #define LLOG_BITMAP_BYTES (LLOG_MIN_CHUNK_SIZE - LLOG_HEADER_SIZE)
3004 #define LLOG_MIN_REC_SIZE (24) /* round(llog_rec_hdr + llog_rec_tail) */
3006 /* flags for the logs */
3007 struct llog_log_hdr
{
3008 struct llog_rec_hdr llh_hdr
;
3009 __s64 llh_timestamp
;
3011 __u32 llh_bitmap_offset
;
3015 /* for a catalog the first plain slot is next to it */
3016 struct obd_uuid llh_tgtuuid
;
3017 __u32 llh_reserved
[LLOG_HEADER_SIZE
/ sizeof(__u32
) - 23];
3018 /* These fields must always be at the end of the llog_log_hdr.
3019 * Note: llh_bitmap size is variable because llog chunk size could be
3020 * bigger than LLOG_MIN_CHUNK_SIZE, i.e. sizeof(llog_log_hdr) > 8192
3021 * bytes, and the real size is stored in llh_hdr.lrh_len, which means
3022 * llh_tail should only be referred by LLOG_HDR_TAIL().
3023 * But this structure is also used by client/server llog interface
3024 * (see llog_client.c), it will be kept in its original way to avoid
3025 * compatibility issue.
3027 __u32 llh_bitmap
[LLOG_BITMAP_BYTES
/ sizeof(__u32
)];
3028 struct llog_rec_tail llh_tail
;
3031 #undef LLOG_HEADER_SIZE
3032 #undef LLOG_BITMAP_BYTES
3034 #define LLOG_HDR_BITMAP_SIZE(llh) (__u32)((llh->llh_hdr.lrh_len - \
3035 llh->llh_bitmap_offset - \
3036 sizeof(llh->llh_tail)) * 8)
3037 #define LLOG_HDR_BITMAP(llh) (__u32 *)((char *)(llh) + \
3038 (llh)->llh_bitmap_offset)
3039 #define LLOG_HDR_TAIL(llh) ((struct llog_rec_tail *)((char *)llh + \
3040 llh->llh_hdr.lrh_len - \
3041 sizeof(llh->llh_tail)))
3043 /** log cookies are used to reference a specific log file and a record
3046 struct llog_cookie
{
3047 struct llog_logid lgc_lgl
;
3053 /** llog protocol */
3054 enum llogd_rpc_ops
{
3055 LLOG_ORIGIN_HANDLE_CREATE
= 501,
3056 LLOG_ORIGIN_HANDLE_NEXT_BLOCK
= 502,
3057 LLOG_ORIGIN_HANDLE_READ_HEADER
= 503,
3058 LLOG_ORIGIN_HANDLE_WRITE_REC
= 504,
3059 LLOG_ORIGIN_HANDLE_CLOSE
= 505,
3060 LLOG_ORIGIN_CONNECT
= 506,
3061 LLOG_CATINFO
= 507, /* deprecated */
3062 LLOG_ORIGIN_HANDLE_PREV_BLOCK
= 508,
3063 LLOG_ORIGIN_HANDLE_DESTROY
= 509, /* for destroy llog object*/
3065 LLOG_FIRST_OPC
= LLOG_ORIGIN_HANDLE_CREATE
3069 struct llog_logid lgd_logid
;
3071 __u32 lgd_llh_flags
;
3073 __u32 lgd_saved_index
;
3075 __u64 lgd_cur_offset
;
3078 struct llogd_conn_body
{
3079 struct llog_gen lgdc_gen
;
3080 struct llog_logid lgdc_logid
;
3081 __u32 lgdc_ctxt_idx
;
3084 /* Note: 64-bit types are 64-bit aligned in structure */
3086 __u64 o_valid
; /* hot fields in this obdo */
3089 __u64 o_size
; /* o_size-o_blocks == ost_lvb */
3093 __u64 o_blocks
; /* brw: cli sent cached bytes */
3096 /* 32-bit fields start here: keep an even number of them via padding */
3097 __u32 o_blksize
; /* optimal IO blocksize */
3098 __u32 o_mode
; /* brw: cli sent cache remain */
3102 __u32 o_nlink
; /* brw: checksum */
3104 __u32 o_misc
; /* brw: o_dropped */
3106 __u64 o_ioepoch
; /* epoch in ost writes */
3107 __u32 o_stripe_idx
; /* holds stripe idx */
3109 struct lustre_handle o_handle
; /* brw: lock handle to prolong locks
3111 struct llog_cookie o_lcookie
; /* destroy: unlink cookie from MDS,
3112 * obsolete in 2.8, reused in OSP
3117 __u64 o_data_version
; /* getattr: sum of iversion for
3119 * brw: grant space consumed on
3120 * the client for the write
3127 #define o_dirty o_blocks
3128 #define o_undirty o_mode
3129 #define o_dropped o_misc
3130 #define o_cksum o_nlink
3131 #define o_grant_used o_data_version
3133 /* request structure for OST's */
3138 /* Key for FIEMAP to be used in get_info calls */
3139 struct ll_fiemap_info_key
{
3141 struct obdo lfik_oa
;
3142 struct fiemap lfik_fiemap
;
3145 /* Functions for dumping PTLRPC fields */
3146 void dump_rniobuf(struct niobuf_remote
*rnb
);
3147 void dump_ioo(struct obd_ioobj
*nb
);
3148 void dump_ost_body(struct ost_body
*ob
);
3149 void dump_rcs(__u32
*rc
);
3151 /* security opcodes */
3154 SEC_CTX_INIT_CONT
= 802,
3157 SEC_FIRST_OPC
= SEC_CTX_INIT
3161 * capa related definitions
3163 #define CAPA_HMAC_MAX_LEN 64
3164 #define CAPA_HMAC_KEY_MAX_LEN 56
3166 /* NB take care when changing the sequence of elements this struct,
3167 * because the offset info is used in find_capa()
3169 struct lustre_capa
{
3170 struct lu_fid lc_fid
; /** fid */
3171 __u64 lc_opc
; /** operations allowed */
3172 __u64 lc_uid
; /** file owner */
3173 __u64 lc_gid
; /** file group */
3174 __u32 lc_flags
; /** HMAC algorithm & flags */
3175 __u32 lc_keyid
; /** key# used for the capability */
3176 __u32 lc_timeout
; /** capa timeout value (sec) */
3177 /* FIXME: y2038 time_t overflow: */
3178 __u32 lc_expiry
; /** expiry time (sec) */
3179 __u8 lc_hmac
[CAPA_HMAC_MAX_LEN
]; /** HMAC */
3182 /** lustre_capa::lc_opc */
3184 CAPA_OPC_BODY_WRITE
= 1 << 0, /**< write object data */
3185 CAPA_OPC_BODY_READ
= 1 << 1, /**< read object data */
3186 CAPA_OPC_INDEX_LOOKUP
= 1 << 2, /**< lookup object fid */
3187 CAPA_OPC_INDEX_INSERT
= 1 << 3, /**< insert object fid */
3188 CAPA_OPC_INDEX_DELETE
= 1 << 4, /**< delete object fid */
3189 CAPA_OPC_OSS_WRITE
= 1 << 5, /**< write oss object data */
3190 CAPA_OPC_OSS_READ
= 1 << 6, /**< read oss object data */
3191 CAPA_OPC_OSS_TRUNC
= 1 << 7, /**< truncate oss object */
3192 CAPA_OPC_OSS_DESTROY
= 1 << 8, /**< destroy oss object */
3193 CAPA_OPC_META_WRITE
= 1 << 9, /**< write object meta data */
3194 CAPA_OPC_META_READ
= 1 << 10, /**< read object meta data */
3197 #define CAPA_OPC_OSS_RW (CAPA_OPC_OSS_READ | CAPA_OPC_OSS_WRITE)
3198 #define CAPA_OPC_MDS_ONLY \
3199 (CAPA_OPC_BODY_WRITE | CAPA_OPC_BODY_READ | CAPA_OPC_INDEX_LOOKUP | \
3200 CAPA_OPC_INDEX_INSERT | CAPA_OPC_INDEX_DELETE)
3201 #define CAPA_OPC_OSS_ONLY \
3202 (CAPA_OPC_OSS_WRITE | CAPA_OPC_OSS_READ | CAPA_OPC_OSS_TRUNC | \
3203 CAPA_OPC_OSS_DESTROY)
3204 #define CAPA_OPC_MDS_DEFAULT ~CAPA_OPC_OSS_ONLY
3205 #define CAPA_OPC_OSS_DEFAULT ~(CAPA_OPC_MDS_ONLY | CAPA_OPC_OSS_ONLY)
3207 struct lustre_capa_key
{
3208 __u64 lk_seq
; /**< mds# */
3209 __u32 lk_keyid
; /**< key# */
3211 __u8 lk_key
[CAPA_HMAC_KEY_MAX_LEN
]; /**< key */
3214 /** The link ea holds 1 \a link_ea_entry for each hardlink */
3215 #define LINK_EA_MAGIC 0x11EAF1DFUL
3216 struct link_ea_header
{
3219 __u64 leh_len
; /* total size */
3225 /** Hardlink data is name and parent fid.
3226 * Stored in this crazy struct for maximum packing and endian-neutrality
3228 struct link_ea_entry
{
3229 /** __u16 stored big-endian, unaligned */
3230 unsigned char lee_reclen
[2];
3231 unsigned char lee_parent_fid
[sizeof(struct lu_fid
)];
3235 /** fid2path request/reply structure */
3236 struct getinfo_fid2path
{
3237 struct lu_fid gf_fid
;
3244 /** path2parent request/reply structures */
3246 struct lu_fid gp_fid
; /**< parent FID */
3247 __u32 gp_linkno
; /**< hardlink number */
3248 __u32 gp_name_size
; /**< size of the name field */
3249 char gp_name
[0]; /**< zero-terminated link name */
3253 LAYOUT_INTENT_ACCESS
= 0,
3254 LAYOUT_INTENT_READ
= 1,
3255 LAYOUT_INTENT_WRITE
= 2,
3256 LAYOUT_INTENT_GLIMPSE
= 3,
3257 LAYOUT_INTENT_TRUNC
= 4,
3258 LAYOUT_INTENT_RELEASE
= 5,
3259 LAYOUT_INTENT_RESTORE
= 6
3262 /* enqueue layout lock with intent */
3263 struct layout_intent
{
3264 __u32 li_opc
; /* intent operation for enqueue, read, write etc */
3271 * On the wire version of hsm_progress structure.
3273 * Contains the userspace hsm_progress and some internal fields.
3275 struct hsm_progress_kernel
{
3276 /* Field taken from struct hsm_progress */
3277 struct lu_fid hpk_fid
;
3279 struct hsm_extent hpk_extent
;
3281 __u16 hpk_errval
; /* positive val */
3283 /* Additional fields */
3284 __u64 hpk_data_version
;
3288 /** layout swap request structure
3289 * fid1 and fid2 are in mdt_body
3291 struct mdc_swap_layouts
{
3296 struct lustre_handle cd_handle
;
3297 struct lu_fid cd_fid
;
3298 __u64 cd_data_version
;
3299 __u64 cd_reserved
[8];