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.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2014, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/include/lustre/lustre_idl.h
38 * Lustre wire protocol definitions.
41 /** \defgroup lustreidl lustreidl
43 * Lustre wire protocol definitions.
45 * ALL structs passing over the wire should be declared here. Structs
46 * that are used in interfaces with userspace should go in lustre_user.h.
48 * All structs being declared here should be built from simple fixed-size
49 * types (__u8, __u16, __u32, __u64) or be built from other types or
50 * structs also declared in this file. Similarly, all flags and magic
51 * values in those structs should also be declared here. This ensures
52 * that the Lustre wire protocol is not influenced by external dependencies.
54 * The only other acceptable items in this file are VERY SIMPLE accessor
55 * functions to avoid callers grubbing inside the structures, and the
56 * prototypes of the swabber functions for each struct. Nothing that
57 * depends on external functions or definitions should be in here.
59 * Structs must be properly aligned to put 64-bit values on an 8-byte
60 * boundary. Any structs being added here must also be added to
61 * utils/wirecheck.c and "make newwiretest" run to regenerate the
62 * utils/wiretest.c sources. This allows us to verify that wire structs
63 * have the proper alignment/size on all architectures.
65 * DO NOT CHANGE any of the structs, flags, values declared here and used
66 * in released Lustre versions. Some structs may have padding fields that
67 * can be used. Some structs might allow addition at the end (verify this
68 * in the code to ensure that new/old clients that see this larger struct
69 * do not fail, otherwise you need to implement protocol compatibility).
71 * We assume all nodes are either little-endian or big-endian, and we
72 * always send messages in the sender's native format. The receiver
73 * detects the message format by checking the 'magic' field of the message
74 * (see lustre_msg_swabbed() below).
76 * Each wire type has corresponding 'lustre_swab_xxxtypexxx()' routines,
77 * implemented either here, inline (trivial implementations) or in
78 * ptlrpc/pack_generic.c. These 'swabbers' convert the type from "other"
79 * endian, in-place in the message buffer.
81 * A swabber takes a single pointer argument. The caller must already have
82 * verified that the length of the message buffer >= sizeof (type).
84 * For variable length types, a second 'lustre_swab_v_xxxtypexxx()' routine
85 * may be defined that swabs just the variable part, after the caller has
86 * verified that the message buffer is large enough.
91 #ifndef _LUSTRE_IDL_H_
92 #define _LUSTRE_IDL_H_
94 #include <libcfs/libcfs.h> /* for LPUX64, etc */
95 #include <lnet/types.h>
96 #include <lustre/lustre_user.h> /* Defn's shared with user-space. */
97 #include <lustre/lustre_errno.h>
98 #include <lustre_ver.h>
103 /* FOO_REQUEST_PORTAL is for incoming requests on the FOO
104 * FOO_REPLY_PORTAL is for incoming replies on the FOO
105 * FOO_BULK_PORTAL is for incoming bulk on the FOO
108 #define CONNMGR_REQUEST_PORTAL 1
109 #define CONNMGR_REPLY_PORTAL 2
110 //#define OSC_REQUEST_PORTAL 3
111 #define OSC_REPLY_PORTAL 4
112 //#define OSC_BULK_PORTAL 5
113 #define OST_IO_PORTAL 6
114 #define OST_CREATE_PORTAL 7
115 #define OST_BULK_PORTAL 8
116 //#define MDC_REQUEST_PORTAL 9
117 #define MDC_REPLY_PORTAL 10
118 //#define MDC_BULK_PORTAL 11
119 #define MDS_REQUEST_PORTAL 12
120 //#define MDS_REPLY_PORTAL 13
121 #define MDS_BULK_PORTAL 14
122 #define LDLM_CB_REQUEST_PORTAL 15
123 #define LDLM_CB_REPLY_PORTAL 16
124 #define LDLM_CANCEL_REQUEST_PORTAL 17
125 #define LDLM_CANCEL_REPLY_PORTAL 18
126 //#define PTLBD_REQUEST_PORTAL 19
127 //#define PTLBD_REPLY_PORTAL 20
128 //#define PTLBD_BULK_PORTAL 21
129 #define MDS_SETATTR_PORTAL 22
130 #define MDS_READPAGE_PORTAL 23
131 #define OUT_PORTAL 24
132 #define MGC_REPLY_PORTAL 25
133 #define MGS_REQUEST_PORTAL 26
134 #define MGS_REPLY_PORTAL 27
135 #define OST_REQUEST_PORTAL 28
136 #define FLD_REQUEST_PORTAL 29
137 #define SEQ_METADATA_PORTAL 30
138 #define SEQ_DATA_PORTAL 31
139 #define SEQ_CONTROLLER_PORTAL 32
140 #define MGS_BULK_PORTAL 33
142 /* Portal 63 is reserved for the Cray Inc DVS - nic@cray.com, roe@cray.com, n8851@cray.com */
145 #define PTL_RPC_MSG_REQUEST 4711
146 #define PTL_RPC_MSG_ERR 4712
147 #define PTL_RPC_MSG_REPLY 4713
149 /* DON'T use swabbed values of MAGIC as magic! */
150 #define LUSTRE_MSG_MAGIC_V1 0x0BD00BD0
151 #define LUSTRE_MSG_MAGIC_V2 0x0BD00BD3
153 #define LUSTRE_MSG_MAGIC_V1_SWABBED 0xD00BD00B
154 #define LUSTRE_MSG_MAGIC_V2_SWABBED 0xD30BD00B
156 #define LUSTRE_MSG_MAGIC LUSTRE_MSG_MAGIC_V2
158 #define PTLRPC_MSG_VERSION 0x00000003
159 #define LUSTRE_VERSION_MASK 0xffff0000
160 #define LUSTRE_OBD_VERSION 0x00010000
161 #define LUSTRE_MDS_VERSION 0x00020000
162 #define LUSTRE_OST_VERSION 0x00030000
163 #define LUSTRE_DLM_VERSION 0x00040000
164 #define LUSTRE_LOG_VERSION 0x00050000
165 #define LUSTRE_MGS_VERSION 0x00060000
167 /* TODO: All obd_* typedefs will be removed in last patch in series */
168 typedef __u64 obd_id;
169 typedef __u64 obd_seq;
170 typedef __s64 obd_time;
171 typedef __u64 obd_size;
172 typedef __u64 obd_off;
173 typedef __u64 obd_blocks;
174 typedef __u64 obd_valid;
175 typedef __u32 obd_blksize;
176 typedef __u32 obd_mode;
177 typedef __u32 obd_uid;
178 typedef __u32 obd_gid;
179 typedef __u32 obd_flag;
180 typedef __u32 obd_count;
183 * Describes a range of sequence, lsr_start is included but lsr_end is
185 * Same structure is used in fld module where lsr_index field holds mdt id
188 struct lu_seq_range {
195 struct lu_seq_range_array {
198 struct lu_seq_range lsra_lsr[0];
201 #define LU_SEQ_RANGE_MDT 0x0
202 #define LU_SEQ_RANGE_OST 0x1
203 #define LU_SEQ_RANGE_ANY 0x3
205 #define LU_SEQ_RANGE_MASK 0x3
207 static inline unsigned fld_range_type(const struct lu_seq_range *range)
209 return range->lsr_flags & LU_SEQ_RANGE_MASK;
212 static inline bool fld_range_is_ost(const struct lu_seq_range *range)
214 return fld_range_type(range) == LU_SEQ_RANGE_OST;
217 static inline bool fld_range_is_mdt(const struct lu_seq_range *range)
219 return fld_range_type(range) == LU_SEQ_RANGE_MDT;
223 * This all range is only being used when fld client sends fld query request,
224 * but it does not know whether the seq is MDT or OST, so it will send req
225 * with ALL type, which means either seq type gotten from lookup can be
228 static inline unsigned fld_range_is_any(const struct lu_seq_range *range)
230 return fld_range_type(range) == LU_SEQ_RANGE_ANY;
233 static inline void fld_range_set_type(struct lu_seq_range *range,
236 range->lsr_flags |= flags;
239 static inline void fld_range_set_mdt(struct lu_seq_range *range)
241 fld_range_set_type(range, LU_SEQ_RANGE_MDT);
244 static inline void fld_range_set_ost(struct lu_seq_range *range)
246 fld_range_set_type(range, LU_SEQ_RANGE_OST);
249 static inline void fld_range_set_any(struct lu_seq_range *range)
251 fld_range_set_type(range, LU_SEQ_RANGE_ANY);
255 * returns width of given range \a r
258 static inline __u64 range_space(const struct lu_seq_range *range)
260 return range->lsr_end - range->lsr_start;
264 * initialize range to zero
267 static inline void range_init(struct lu_seq_range *range)
269 memset(range, 0, sizeof(*range));
273 * check if given seq id \a s is within given range \a r
276 static inline bool range_within(const struct lu_seq_range *range,
279 return s >= range->lsr_start && s < range->lsr_end;
282 static inline bool range_is_sane(const struct lu_seq_range *range)
284 return range->lsr_end >= range->lsr_start;
287 static inline bool range_is_zero(const struct lu_seq_range *range)
289 return range->lsr_start == 0 && range->lsr_end == 0;
292 static inline bool range_is_exhausted(const struct lu_seq_range *range)
294 return range_space(range) == 0;
297 /* return 0 if two range have the same location */
298 static inline int range_compare_loc(const struct lu_seq_range *r1,
299 const struct lu_seq_range *r2)
301 return r1->lsr_index != r2->lsr_index ||
302 r1->lsr_flags != r2->lsr_flags;
305 #define DRANGE "[%#16.16"LPF64"x-%#16.16"LPF64"x):%x:%s"
307 #define PRANGE(range) \
308 (range)->lsr_start, \
310 (range)->lsr_index, \
311 fld_range_is_mdt(range) ? "mdt" : "ost"
314 /** \defgroup lu_fid lu_fid
318 * Flags for lustre_mdt_attrs::lma_compat and lustre_mdt_attrs::lma_incompat.
319 * Deprecated since HSM and SOM attributes are now stored in separate on-disk
323 LMAC_HSM = 0x00000001,
324 LMAC_SOM = 0x00000002,
325 LMAC_NOT_IN_OI = 0x00000004, /* the object does NOT need OI mapping */
326 LMAC_FID_ON_OST = 0x00000008, /* For OST-object, its OI mapping is
327 * under /O/<seq>/d<x>. */
331 * Masks for all features that should be supported by a Lustre version to
332 * access a specific file.
333 * This information is stored in lustre_mdt_attrs::lma_incompat.
336 LMAI_RELEASED = 0x00000001, /* file is released */
337 LMAI_AGENT = 0x00000002, /* agent inode */
338 LMAI_REMOTE_PARENT = 0x00000004, /* the parent of the object
339 is on the remote MDT */
340 LMAI_STRIPED = 0x00000008, /* striped directory inode */
342 #define LMA_INCOMPAT_SUPP (LMAI_AGENT | LMAI_REMOTE_PARENT | LMAI_STRIPED)
344 extern void lustre_lma_swab(struct lustre_mdt_attrs *lma);
345 extern void lustre_lma_init(struct lustre_mdt_attrs *lma,
346 const struct lu_fid *fid,
347 __u32 compat, __u32 incompat);
349 * SOM on-disk attributes stored in a separate xattr.
352 /** Bitfield for supported data in this structure. For future use. */
355 /** Incompat feature list. The supported feature mask is availabe in
356 * SOM_INCOMPAT_SUPP */
359 /** IO Epoch SOM attributes belongs to */
361 /** total file size in objects */
363 /** total fs blocks in objects */
365 /** mds mount id the size is valid for */
368 extern void lustre_som_swab(struct som_attrs *attrs);
370 #define SOM_INCOMPAT_SUPP 0x0
373 * HSM on-disk attributes stored in a separate xattr.
376 /** Bitfield for supported data in this structure. For future use. */
379 /** HSM flags, see hsm_flags enum below */
381 /** backend archive id associated with the file */
383 /** version associated with the last archiving, if any */
386 extern void lustre_hsm_swab(struct hsm_attrs *attrs);
392 /** LASTID file has zero OID */
393 LUSTRE_FID_LASTID_OID = 0UL,
394 /** initial fid id value */
395 LUSTRE_FID_INIT_OID = 1UL
398 /** returns fid object sequence */
399 static inline __u64 fid_seq(const struct lu_fid *fid)
404 /** returns fid object id */
405 static inline __u32 fid_oid(const struct lu_fid *fid)
410 /** returns fid object version */
411 static inline __u32 fid_ver(const struct lu_fid *fid)
416 static inline void fid_zero(struct lu_fid *fid)
418 memset(fid, 0, sizeof(*fid));
421 static inline __u64 fid_ver_oid(const struct lu_fid *fid)
423 return ((__u64)fid_ver(fid) << 32 | fid_oid(fid));
427 * Note that reserved SEQ numbers below 12 will conflict with ldiskfs
428 * inodes in the IGIF namespace, so these reserved SEQ numbers can be
429 * used for other purposes and not risk collisions with existing inodes.
431 * Different FID Format
432 * http://arch.lustre.org/index.php?title=Interoperability_fids_zfs#NEW.0
435 FID_SEQ_OST_MDT0 = 0,
436 FID_SEQ_LLOG = 1, /* unnamed llogs */
438 FID_SEQ_OST_MDT1 = 3,
439 FID_SEQ_OST_MAX = 9, /* Max MDT count before OST_on_FID */
440 FID_SEQ_LLOG_NAME = 10, /* named llogs */
443 FID_SEQ_IGIF_MAX = 0x0ffffffffULL,
444 FID_SEQ_IDIF = 0x100000000ULL,
445 FID_SEQ_IDIF_MAX = 0x1ffffffffULL,
446 /* Normal FID sequence starts from this value, i.e. 1<<33 */
447 FID_SEQ_START = 0x200000000ULL,
448 /* sequence for local pre-defined FIDs listed in local_oid */
449 FID_SEQ_LOCAL_FILE = 0x200000001ULL,
450 FID_SEQ_DOT_LUSTRE = 0x200000002ULL,
451 /* sequence is used for local named objects FIDs generated
452 * by local_object_storage library */
453 FID_SEQ_LOCAL_NAME = 0x200000003ULL,
454 /* Because current FLD will only cache the fid sequence, instead
455 * of oid on the client side, if the FID needs to be exposed to
456 * clients sides, it needs to make sure all of fids under one
457 * sequence will be located in one MDT. */
458 FID_SEQ_SPECIAL = 0x200000004ULL,
459 FID_SEQ_QUOTA = 0x200000005ULL,
460 FID_SEQ_QUOTA_GLB = 0x200000006ULL,
461 FID_SEQ_ROOT = 0x200000007ULL, /* Located on MDT0 */
462 FID_SEQ_LAYOUT_RBTREE = 0x200000008ULL,
463 FID_SEQ_NORMAL = 0x200000400ULL,
464 FID_SEQ_LOV_DEFAULT = 0xffffffffffffffffULL
467 #define OBIF_OID_MAX_BITS 32
468 #define OBIF_MAX_OID (1ULL << OBIF_OID_MAX_BITS)
469 #define OBIF_OID_MASK ((1ULL << OBIF_OID_MAX_BITS) - 1)
470 #define IDIF_OID_MAX_BITS 48
471 #define IDIF_MAX_OID (1ULL << IDIF_OID_MAX_BITS)
472 #define IDIF_OID_MASK ((1ULL << IDIF_OID_MAX_BITS) - 1)
474 /** OID for FID_SEQ_SPECIAL */
476 /* Big Filesystem Lock to serialize rename operations */
477 FID_OID_SPECIAL_BFL = 1UL,
480 /** OID for FID_SEQ_DOT_LUSTRE */
481 enum dot_lustre_oid {
482 FID_OID_DOT_LUSTRE = 1UL,
483 FID_OID_DOT_LUSTRE_OBF = 2UL,
484 FID_OID_DOT_LUSTRE_LPF = 3UL,
487 /** OID for FID_SEQ_ROOT */
490 FID_OID_ECHO_ROOT = 2UL,
493 static inline bool fid_seq_is_mdt0(__u64 seq)
495 return seq == FID_SEQ_OST_MDT0;
498 static inline bool fid_seq_is_mdt(__u64 seq)
500 return seq == FID_SEQ_OST_MDT0 || seq >= FID_SEQ_NORMAL;
503 static inline bool fid_seq_is_echo(__u64 seq)
505 return seq == FID_SEQ_ECHO;
508 static inline bool fid_is_echo(const struct lu_fid *fid)
510 return fid_seq_is_echo(fid_seq(fid));
513 static inline bool fid_seq_is_llog(__u64 seq)
515 return seq == FID_SEQ_LLOG;
518 static inline bool fid_is_llog(const struct lu_fid *fid)
520 /* file with OID == 0 is not llog but contains last oid */
521 return fid_seq_is_llog(fid_seq(fid)) && fid_oid(fid) > 0;
524 static inline bool fid_seq_is_rsvd(__u64 seq)
526 return seq > FID_SEQ_OST_MDT0 && seq <= FID_SEQ_RSVD;
529 static inline bool fid_seq_is_special(__u64 seq)
531 return seq == FID_SEQ_SPECIAL;
534 static inline bool fid_seq_is_local_file(__u64 seq)
536 return seq == FID_SEQ_LOCAL_FILE ||
537 seq == FID_SEQ_LOCAL_NAME;
540 static inline bool fid_seq_is_root(__u64 seq)
542 return seq == FID_SEQ_ROOT;
545 static inline bool fid_seq_is_dot(__u64 seq)
547 return seq == FID_SEQ_DOT_LUSTRE;
550 static inline bool fid_seq_is_default(__u64 seq)
552 return seq == FID_SEQ_LOV_DEFAULT;
555 static inline bool fid_is_mdt0(const struct lu_fid *fid)
557 return fid_seq_is_mdt0(fid_seq(fid));
560 static inline void lu_root_fid(struct lu_fid *fid)
562 fid->f_seq = FID_SEQ_ROOT;
563 fid->f_oid = FID_OID_ROOT;
567 static inline void lu_echo_root_fid(struct lu_fid *fid)
569 fid->f_seq = FID_SEQ_ROOT;
570 fid->f_oid = FID_OID_ECHO_ROOT;
575 * Check if a fid is igif or not.
576 * \param fid the fid to be tested.
577 * \return true if the fid is a igif; otherwise false.
579 static inline bool fid_seq_is_igif(__u64 seq)
581 return seq >= FID_SEQ_IGIF && seq <= FID_SEQ_IGIF_MAX;
584 static inline bool fid_is_igif(const struct lu_fid *fid)
586 return fid_seq_is_igif(fid_seq(fid));
590 * Check if a fid is idif or not.
591 * \param fid the fid to be tested.
592 * \return true if the fid is a idif; otherwise false.
594 static inline bool fid_seq_is_idif(__u64 seq)
596 return seq >= FID_SEQ_IDIF && seq <= FID_SEQ_IDIF_MAX;
599 static inline bool fid_is_idif(const struct lu_fid *fid)
601 return fid_seq_is_idif(fid_seq(fid));
604 static inline bool fid_is_local_file(const struct lu_fid *fid)
606 return fid_seq_is_local_file(fid_seq(fid));
609 static inline bool fid_seq_is_norm(__u64 seq)
611 return (seq >= FID_SEQ_NORMAL);
614 static inline bool fid_is_norm(const struct lu_fid *fid)
616 return fid_seq_is_norm(fid_seq(fid));
619 static inline int fid_is_layout_rbtree(const struct lu_fid *fid)
621 return fid_seq(fid) == FID_SEQ_LAYOUT_RBTREE;
624 /* convert an OST objid into an IDIF FID SEQ number */
625 static inline __u64 fid_idif_seq(__u64 id, __u32 ost_idx)
627 return FID_SEQ_IDIF | (ost_idx << 16) | ((id >> 32) & 0xffff);
630 /* convert a packed IDIF FID into an OST objid */
631 static inline __u64 fid_idif_id(__u64 seq, __u32 oid, __u32 ver)
633 return ((__u64)ver << 48) | ((seq & 0xffff) << 32) | oid;
636 static inline __u32 idif_ost_idx(__u64 seq)
638 return (seq >> 16) & 0xffff;
641 /* extract ost index from IDIF FID */
642 static inline __u32 fid_idif_ost_idx(const struct lu_fid *fid)
644 return idif_ost_idx(fid_seq(fid));
647 /* extract OST sequence (group) from a wire ost_id (id/seq) pair */
648 static inline __u64 ostid_seq(const struct ost_id *ostid)
650 if (fid_seq_is_mdt0(ostid->oi.oi_seq))
651 return FID_SEQ_OST_MDT0;
653 if (unlikely(fid_seq_is_default(ostid->oi.oi_seq)))
654 return FID_SEQ_LOV_DEFAULT;
656 if (fid_is_idif(&ostid->oi_fid))
657 return FID_SEQ_OST_MDT0;
659 return fid_seq(&ostid->oi_fid);
662 /* extract OST objid from a wire ost_id (id/seq) pair */
663 static inline __u64 ostid_id(const struct ost_id *ostid)
665 if (fid_seq_is_mdt0(ostid->oi.oi_seq))
666 return ostid->oi.oi_id & IDIF_OID_MASK;
668 if (unlikely(fid_seq_is_default(ostid->oi.oi_seq)))
669 return ostid->oi.oi_id;
671 if (fid_is_idif(&ostid->oi_fid))
672 return fid_idif_id(fid_seq(&ostid->oi_fid),
673 fid_oid(&ostid->oi_fid), 0);
675 return fid_oid(&ostid->oi_fid);
678 static inline void ostid_set_seq(struct ost_id *oi, __u64 seq)
680 if (fid_seq_is_mdt0(seq) || fid_seq_is_default(seq)) {
683 oi->oi_fid.f_seq = seq;
684 /* Note: if f_oid + f_ver is zero, we need init it
685 * to be 1, otherwise, ostid_seq will treat this
686 * as old ostid (oi_seq == 0) */
687 if (oi->oi_fid.f_oid == 0 && oi->oi_fid.f_ver == 0)
688 oi->oi_fid.f_oid = LUSTRE_FID_INIT_OID;
692 static inline void ostid_set_seq_mdt0(struct ost_id *oi)
694 ostid_set_seq(oi, FID_SEQ_OST_MDT0);
697 static inline void ostid_set_seq_echo(struct ost_id *oi)
699 ostid_set_seq(oi, FID_SEQ_ECHO);
702 static inline void ostid_set_seq_llog(struct ost_id *oi)
704 ostid_set_seq(oi, FID_SEQ_LLOG);
708 * Note: we need check oi_seq to decide where to set oi_id,
709 * so oi_seq should always be set ahead of oi_id.
711 static inline void ostid_set_id(struct ost_id *oi, __u64 oid)
713 if (fid_seq_is_mdt0(oi->oi.oi_seq)) {
714 if (oid >= IDIF_MAX_OID) {
715 CERROR("Bad "LPU64" to set "DOSTID"\n",
720 } else if (fid_is_idif(&oi->oi_fid)) {
721 if (oid >= IDIF_MAX_OID) {
722 CERROR("Bad "LPU64" to set "DOSTID"\n",
726 oi->oi_fid.f_seq = fid_idif_seq(oid,
727 fid_idif_ost_idx(&oi->oi_fid));
728 oi->oi_fid.f_oid = oid;
729 oi->oi_fid.f_ver = oid >> 48;
731 if (oid > OBIF_MAX_OID) {
732 CERROR("Bad "LPU64" to set "DOSTID"\n",
736 oi->oi_fid.f_oid = oid;
740 static inline int fid_set_id(struct lu_fid *fid, __u64 oid)
742 if (unlikely(fid_seq_is_igif(fid->f_seq))) {
743 CERROR("bad IGIF, "DFID"\n", PFID(fid));
747 if (fid_is_idif(fid)) {
748 if (oid >= IDIF_MAX_OID) {
749 CERROR("Bad "LPU64" to set "DFID"\n",
753 fid->f_seq = fid_idif_seq(oid, fid_idif_ost_idx(fid));
755 fid->f_ver = oid >> 48;
757 if (oid > OBIF_MAX_OID) {
758 CERROR("Bad "LPU64" to set "DFID"\n",
768 * Unpack an OST object id/seq (group) into a FID. This is needed for
769 * converting all obdo, lmm, lsm, etc. 64-bit id/seq pairs into proper
770 * FIDs. Note that if an id/seq is already in FID/IDIF format it will
771 * be passed through unchanged. Only legacy OST objects in "group 0"
772 * will be mapped into the IDIF namespace so that they can fit into the
773 * struct lu_fid fields without loss. For reference see:
774 * http://arch.lustre.org/index.php?title=Interoperability_fids_zfs
776 static inline int ostid_to_fid(struct lu_fid *fid, const struct ost_id *ostid,
779 __u64 seq = ostid_seq(ostid);
781 if (ost_idx > 0xffff) {
782 CERROR("bad ost_idx, "DOSTID" ost_idx:%u\n", POSTID(ostid),
787 if (fid_seq_is_mdt0(seq)) {
788 __u64 oid = ostid_id(ostid);
790 /* This is a "legacy" (old 1.x/2.early) OST object in "group 0"
791 * that we map into the IDIF namespace. It allows up to 2^48
792 * objects per OST, as this is the object namespace that has
793 * been in production for years. This can handle create rates
794 * of 1M objects/s/OST for 9 years, or combinations thereof. */
795 if (oid >= IDIF_MAX_OID) {
796 CERROR("bad MDT0 id(1), "DOSTID" ost_idx:%u\n",
797 POSTID(ostid), ost_idx);
800 fid->f_seq = fid_idif_seq(oid, ost_idx);
801 /* truncate to 32 bits by assignment */
803 /* in theory, not currently used */
804 fid->f_ver = oid >> 48;
805 } else if (likely(!fid_seq_is_default(seq)))
806 /* if (fid_seq_is_idif(seq) || fid_seq_is_norm(seq)) */ {
807 /* This is either an IDIF object, which identifies objects across
808 * all OSTs, or a regular FID. The IDIF namespace maps legacy
809 * OST objects into the FID namespace. In both cases, we just
810 * pass the FID through, no conversion needed. */
811 if (ostid->oi_fid.f_ver != 0) {
812 CERROR("bad MDT0 id(2), "DOSTID" ost_idx:%u\n",
813 POSTID(ostid), ost_idx);
816 *fid = ostid->oi_fid;
822 /* pack any OST FID into an ostid (id/seq) for the wire/disk */
823 static inline int fid_to_ostid(const struct lu_fid *fid, struct ost_id *ostid)
825 if (unlikely(fid_seq_is_igif(fid->f_seq))) {
826 CERROR("bad IGIF, "DFID"\n", PFID(fid));
830 if (fid_is_idif(fid)) {
831 ostid_set_seq_mdt0(ostid);
832 ostid_set_id(ostid, fid_idif_id(fid_seq(fid), fid_oid(fid),
835 ostid->oi_fid = *fid;
841 /* Check whether the fid is for LAST_ID */
842 static inline bool fid_is_last_id(const struct lu_fid *fid)
844 return fid_oid(fid) == 0;
848 * Get inode number from a igif.
849 * \param fid a igif to get inode number from.
850 * \return inode number for the igif.
852 static inline ino_t lu_igif_ino(const struct lu_fid *fid)
857 extern void lustre_swab_ost_id(struct ost_id *oid);
860 * Get inode generation from a igif.
861 * \param fid a igif to get inode generation from.
862 * \return inode generation for the igif.
864 static inline __u32 lu_igif_gen(const struct lu_fid *fid)
870 * Build igif from the inode number/generation.
872 static inline void lu_igif_build(struct lu_fid *fid, __u32 ino, __u32 gen)
880 * Fids are transmitted across network (in the sender byte-ordering),
881 * and stored on disk in big-endian order.
883 static inline void fid_cpu_to_le(struct lu_fid *dst, const struct lu_fid *src)
885 dst->f_seq = cpu_to_le64(fid_seq(src));
886 dst->f_oid = cpu_to_le32(fid_oid(src));
887 dst->f_ver = cpu_to_le32(fid_ver(src));
890 static inline void fid_le_to_cpu(struct lu_fid *dst, const struct lu_fid *src)
892 dst->f_seq = le64_to_cpu(fid_seq(src));
893 dst->f_oid = le32_to_cpu(fid_oid(src));
894 dst->f_ver = le32_to_cpu(fid_ver(src));
897 static inline void fid_cpu_to_be(struct lu_fid *dst, const struct lu_fid *src)
899 dst->f_seq = cpu_to_be64(fid_seq(src));
900 dst->f_oid = cpu_to_be32(fid_oid(src));
901 dst->f_ver = cpu_to_be32(fid_ver(src));
904 static inline void fid_be_to_cpu(struct lu_fid *dst, const struct lu_fid *src)
906 dst->f_seq = be64_to_cpu(fid_seq(src));
907 dst->f_oid = be32_to_cpu(fid_oid(src));
908 dst->f_ver = be32_to_cpu(fid_ver(src));
911 static inline bool fid_is_sane(const struct lu_fid *fid)
913 return fid != NULL &&
914 ((fid_seq(fid) >= FID_SEQ_START && fid_ver(fid) == 0) ||
915 fid_is_igif(fid) || fid_is_idif(fid) ||
916 fid_seq_is_rsvd(fid_seq(fid)));
919 extern void lustre_swab_lu_fid(struct lu_fid *fid);
920 extern void lustre_swab_lu_seq_range(struct lu_seq_range *range);
922 static inline bool lu_fid_eq(const struct lu_fid *f0, const struct lu_fid *f1)
924 return memcmp(f0, f1, sizeof *f0) == 0;
927 #define __diff_normalize(val0, val1) \
929 typeof(val0) __val0 = (val0); \
930 typeof(val1) __val1 = (val1); \
932 (__val0 == __val1 ? 0 : __val0 > __val1 ? +1 : -1); \
935 static inline int lu_fid_cmp(const struct lu_fid *f0,
936 const struct lu_fid *f1)
939 __diff_normalize(fid_seq(f0), fid_seq(f1)) ?:
940 __diff_normalize(fid_oid(f0), fid_oid(f1)) ?:
941 __diff_normalize(fid_ver(f0), fid_ver(f1));
944 static inline void ostid_cpu_to_le(const struct ost_id *src_oi,
945 struct ost_id *dst_oi)
947 if (fid_seq_is_mdt0(src_oi->oi.oi_seq)) {
948 dst_oi->oi.oi_id = cpu_to_le64(src_oi->oi.oi_id);
949 dst_oi->oi.oi_seq = cpu_to_le64(src_oi->oi.oi_seq);
951 fid_cpu_to_le(&dst_oi->oi_fid, &src_oi->oi_fid);
955 static inline void ostid_le_to_cpu(const struct ost_id *src_oi,
956 struct ost_id *dst_oi)
958 if (fid_seq_is_mdt0(src_oi->oi.oi_seq)) {
959 dst_oi->oi.oi_id = le64_to_cpu(src_oi->oi.oi_id);
960 dst_oi->oi.oi_seq = le64_to_cpu(src_oi->oi.oi_seq);
962 fid_le_to_cpu(&dst_oi->oi_fid, &src_oi->oi_fid);
966 struct lu_orphan_rec {
967 /* The MDT-object's FID referenced by the orphan OST-object */
968 struct lu_fid lor_fid;
973 struct lu_orphan_ent {
974 /* The orphan OST-object's FID */
975 struct lu_fid loe_key;
976 struct lu_orphan_rec loe_rec;
978 void lustre_swab_orphan_ent(struct lu_orphan_ent *ent);
982 /** \defgroup lu_dir lu_dir
986 * Enumeration of possible directory entry attributes.
988 * Attributes follow directory entry header in the order they appear in this
991 enum lu_dirent_attrs {
994 LUDA_64BITHASH = 0x0004,
996 /* The following attrs are used for MDT interanl only,
997 * not visible to client */
999 /* Verify the dirent consistency */
1000 LUDA_VERIFY = 0x8000,
1001 /* Only check but not repair the dirent inconsistency */
1002 LUDA_VERIFY_DRYRUN = 0x4000,
1003 /* The dirent has been repaired, or to be repaired (dryrun). */
1004 LUDA_REPAIR = 0x2000,
1005 /* The system is upgraded, has beed or to be repaired (dryrun). */
1006 LUDA_UPGRADE = 0x1000,
1007 /* Ignore this record, go to next directly. */
1008 LUDA_IGNORE = 0x0800,
1011 #define LU_DIRENT_ATTRS_MASK 0xf800
1014 * Layout of readdir pages, as transmitted on wire.
1017 /** valid if LUDA_FID is set. */
1018 struct lu_fid lde_fid;
1019 /** a unique entry identifier: a hash or an offset. */
1021 /** total record length, including all attributes. */
1025 /** optional variable size attributes following this entry.
1026 * taken from enum lu_dirent_attrs.
1029 /** name is followed by the attributes indicated in ->ldp_attrs, in
1030 * their natural order. After the last attribute, padding bytes are
1031 * added to make ->lde_reclen a multiple of 8.
1037 * Definitions of optional directory entry attributes formats.
1039 * Individual attributes do not have their length encoded in a generic way. It
1040 * is assumed that consumer of an attribute knows its format. This means that
1041 * it is impossible to skip over an unknown attribute, except by skipping over all
1042 * remaining attributes (by using ->lde_reclen), which is not too
1043 * constraining, because new server versions will append new attributes at
1044 * the end of an entry.
1048 * Fid directory attribute: a fid of an object referenced by the entry. This
1049 * will be almost always requested by the client and supplied by the server.
1051 * Aligned to 8 bytes.
1053 /* To have compatibility with 1.8, lets have fid in lu_dirent struct. */
1058 * Aligned to 2 bytes.
1065 __u64 ldp_hash_start;
1069 struct lu_dirent ldp_entries[0];
1072 enum lu_dirpage_flags {
1074 * dirpage contains no entry.
1078 * last entry's lde_hash equals ldp_hash_end.
1080 LDF_COLLIDE = 1 << 1
1083 static inline struct lu_dirent *lu_dirent_start(struct lu_dirpage *dp)
1085 if (le32_to_cpu(dp->ldp_flags) & LDF_EMPTY)
1088 return dp->ldp_entries;
1091 static inline struct lu_dirent *lu_dirent_next(struct lu_dirent *ent)
1093 struct lu_dirent *next;
1095 if (le16_to_cpu(ent->lde_reclen) != 0)
1096 next = ((void *)ent) + le16_to_cpu(ent->lde_reclen);
1103 static inline size_t lu_dirent_calc_size(size_t namelen, __u16 attr)
1107 if (attr & LUDA_TYPE) {
1108 const size_t align = sizeof(struct luda_type) - 1;
1109 size = (sizeof(struct lu_dirent) + namelen + align) & ~align;
1110 size += sizeof(struct luda_type);
1112 size = sizeof(struct lu_dirent) + namelen;
1114 return (size + 7) & ~7;
1117 #define MDS_DIR_END_OFF 0xfffffffffffffffeULL
1120 * MDS_READPAGE page size
1122 * This is the directory page size packed in MDS_READPAGE RPC.
1123 * It's different than PAGE_CACHE_SIZE because the client needs to
1124 * access the struct lu_dirpage header packed at the beginning of
1125 * the "page" and without this there isn't any way to know find the
1126 * lu_dirpage header is if client and server PAGE_CACHE_SIZE differ.
1128 #define LU_PAGE_SHIFT 12
1129 #define LU_PAGE_SIZE (1UL << LU_PAGE_SHIFT)
1130 #define LU_PAGE_MASK (~(LU_PAGE_SIZE - 1))
1132 #define LU_PAGE_COUNT (1 << (PAGE_CACHE_SHIFT - LU_PAGE_SHIFT))
1136 struct lustre_handle {
1139 #define DEAD_HANDLE_MAGIC 0xdeadbeefcafebabeULL
1141 static inline bool lustre_handle_is_used(const struct lustre_handle *lh)
1143 return lh->cookie != 0;
1146 static inline bool lustre_handle_equal(const struct lustre_handle *lh1,
1147 const struct lustre_handle *lh2)
1149 return lh1->cookie == lh2->cookie;
1152 static inline void lustre_handle_copy(struct lustre_handle *tgt,
1153 const struct lustre_handle *src)
1155 tgt->cookie = src->cookie;
1158 /* flags for lm_flags */
1159 #define MSGHDR_AT_SUPPORT 0x1
1160 #define MSGHDR_CKSUM_INCOMPAT18 0x2
1162 #define lustre_msg lustre_msg_v2
1163 /* we depend on this structure to be 8-byte aligned */
1164 /* this type is only endian-adjusted in lustre_unpack_msg() */
1165 struct lustre_msg_v2 {
1174 __u32 lm_buflens[0];
1177 /* without gss, ptlrpc_body is put at the first buffer. */
1178 #define PTLRPC_NUM_VERSIONS 4
1179 struct ptlrpc_body_v3 {
1180 struct lustre_handle pb_handle;
1187 __u64 pb_last_committed;
1192 __u32 pb_timeout; /* for req, the deadline, for rep, the service est */
1193 __u32 pb_service_time; /* for rep, actual service time */
1196 /* VBR: pre-versions */
1197 __u64 pb_pre_versions[PTLRPC_NUM_VERSIONS];
1198 /* padding for future needs */
1199 __u64 pb_padding[4];
1200 char pb_jobid[LUSTRE_JOBID_SIZE];
1202 #define ptlrpc_body ptlrpc_body_v3
1204 struct ptlrpc_body_v2 {
1205 struct lustre_handle pb_handle;
1212 __u64 pb_last_committed;
1217 __u32 pb_timeout; /* for req, the deadline, for rep, the service est */
1218 __u32 pb_service_time; /* for rep, actual service time, also used for
1219 net_latency of req */
1222 /* VBR: pre-versions */
1223 __u64 pb_pre_versions[PTLRPC_NUM_VERSIONS];
1224 /* padding for future needs */
1225 __u64 pb_padding[4];
1228 extern void lustre_swab_ptlrpc_body(struct ptlrpc_body *pb);
1230 /* message body offset for lustre_msg_v2 */
1231 /* ptlrpc body offset in all request/reply messages */
1232 #define MSG_PTLRPC_BODY_OFF 0
1234 /* normal request/reply message record offset */
1235 #define REQ_REC_OFF 1
1236 #define REPLY_REC_OFF 1
1238 /* ldlm request message body offset */
1239 #define DLM_LOCKREQ_OFF 1 /* lockreq offset */
1240 #define DLM_REQ_REC_OFF 2 /* normal dlm request record offset */
1242 /* ldlm intent lock message body offset */
1243 #define DLM_INTENT_IT_OFF 2 /* intent lock it offset */
1244 #define DLM_INTENT_REC_OFF 3 /* intent lock record offset */
1246 /* ldlm reply message body offset */
1247 #define DLM_LOCKREPLY_OFF 1 /* lockrep offset */
1248 #define DLM_REPLY_REC_OFF 2 /* reply record offset */
1250 /** only use in req->rq_{req,rep}_swab_mask */
1251 #define MSG_PTLRPC_HEADER_OFF 31
1253 /* Flags that are operation-specific go in the top 16 bits. */
1254 #define MSG_OP_FLAG_MASK 0xffff0000
1255 #define MSG_OP_FLAG_SHIFT 16
1257 /* Flags that apply to all requests are in the bottom 16 bits */
1258 #define MSG_GEN_FLAG_MASK 0x0000ffff
1259 #define MSG_LAST_REPLAY 0x0001
1260 #define MSG_RESENT 0x0002
1261 #define MSG_REPLAY 0x0004
1262 /* #define MSG_AT_SUPPORT 0x0008
1263 * This was used in early prototypes of adaptive timeouts, and while there
1264 * shouldn't be any users of that code there also isn't a need for using this
1265 * bits. Defer usage until at least 1.10 to avoid potential conflict. */
1266 #define MSG_DELAY_REPLAY 0x0010
1267 #define MSG_VERSION_REPLAY 0x0020
1268 #define MSG_REQ_REPLAY_DONE 0x0040
1269 #define MSG_LOCK_REPLAY_DONE 0x0080
1272 * Flags for all connect opcodes (MDS_CONNECT, OST_CONNECT)
1275 #define MSG_CONNECT_RECOVERING 0x00000001
1276 #define MSG_CONNECT_RECONNECT 0x00000002
1277 #define MSG_CONNECT_REPLAYABLE 0x00000004
1278 //#define MSG_CONNECT_PEER 0x8
1279 #define MSG_CONNECT_LIBCLIENT 0x00000010
1280 #define MSG_CONNECT_INITIAL 0x00000020
1281 #define MSG_CONNECT_ASYNC 0x00000040
1282 #define MSG_CONNECT_NEXT_VER 0x00000080 /* use next version of lustre_msg */
1283 #define MSG_CONNECT_TRANSNO 0x00000100 /* report transno */
1286 #define OBD_CONNECT_RDONLY 0x1ULL /*client has read-only access*/
1287 #define OBD_CONNECT_INDEX 0x2ULL /*connect specific LOV idx */
1288 #define OBD_CONNECT_MDS 0x4ULL /*connect from MDT to OST */
1289 #define OBD_CONNECT_GRANT 0x8ULL /*OSC gets grant at connect */
1290 #define OBD_CONNECT_SRVLOCK 0x10ULL /*server takes locks for cli */
1291 #define OBD_CONNECT_VERSION 0x20ULL /*Lustre versions in ocd */
1292 #define OBD_CONNECT_REQPORTAL 0x40ULL /*Separate non-IO req portal */
1293 #define OBD_CONNECT_ACL 0x80ULL /*access control lists */
1294 #define OBD_CONNECT_XATTR 0x100ULL /*client use extended attr */
1295 #define OBD_CONNECT_CROW 0x200ULL /*MDS+OST create obj on write*/
1296 #define OBD_CONNECT_TRUNCLOCK 0x400ULL /*locks on server for punch */
1297 #define OBD_CONNECT_TRANSNO 0x800ULL /*replay sends init transno */
1298 #define OBD_CONNECT_IBITS 0x1000ULL /*support for inodebits locks*/
1299 #define OBD_CONNECT_JOIN 0x2000ULL /*files can be concatenated.
1300 *We do not support JOIN FILE
1301 *anymore, reserve this flags
1302 *just for preventing such bit
1304 #define OBD_CONNECT_ATTRFID 0x4000ULL /*Server can GetAttr By Fid*/
1305 #define OBD_CONNECT_NODEVOH 0x8000ULL /*No open hndl on specl nodes*/
1306 #define OBD_CONNECT_RMT_CLIENT 0x10000ULL /*Remote client */
1307 #define OBD_CONNECT_RMT_CLIENT_FORCE 0x20000ULL /*Remote client by force */
1308 #define OBD_CONNECT_BRW_SIZE 0x40000ULL /*Max bytes per rpc */
1309 #define OBD_CONNECT_QUOTA64 0x80000ULL /*Not used since 2.4 */
1310 #define OBD_CONNECT_MDS_CAPA 0x100000ULL /*MDS capability */
1311 #define OBD_CONNECT_OSS_CAPA 0x200000ULL /*OSS capability */
1312 #define OBD_CONNECT_CANCELSET 0x400000ULL /*Early batched cancels. */
1313 #define OBD_CONNECT_SOM 0x800000ULL /*Size on MDS */
1314 #define OBD_CONNECT_AT 0x1000000ULL /*client uses AT */
1315 #define OBD_CONNECT_LRU_RESIZE 0x2000000ULL /*LRU resize feature. */
1316 #define OBD_CONNECT_MDS_MDS 0x4000000ULL /*MDS-MDS connection */
1317 #define OBD_CONNECT_REAL 0x8000000ULL /*real connection */
1318 #define OBD_CONNECT_CHANGE_QS 0x10000000ULL /*Not used since 2.4 */
1319 #define OBD_CONNECT_CKSUM 0x20000000ULL /*support several cksum algos*/
1320 #define OBD_CONNECT_FID 0x40000000ULL /*FID is supported by server */
1321 #define OBD_CONNECT_VBR 0x80000000ULL /*version based recovery */
1322 #define OBD_CONNECT_LOV_V3 0x100000000ULL /*client supports LOV v3 EA */
1323 #define OBD_CONNECT_GRANT_SHRINK 0x200000000ULL /* support grant shrink */
1324 #define OBD_CONNECT_SKIP_ORPHAN 0x400000000ULL /* don't reuse orphan objids */
1325 #define OBD_CONNECT_MAX_EASIZE 0x800000000ULL /* preserved for large EA */
1326 #define OBD_CONNECT_FULL20 0x1000000000ULL /* it is 2.0 client */
1327 #define OBD_CONNECT_LAYOUTLOCK 0x2000000000ULL /* client uses layout lock */
1328 #define OBD_CONNECT_64BITHASH 0x4000000000ULL /* client supports 64-bits
1330 #define OBD_CONNECT_MAXBYTES 0x8000000000ULL /* max stripe size */
1331 #define OBD_CONNECT_IMP_RECOV 0x10000000000ULL /* imp recovery support */
1332 #define OBD_CONNECT_JOBSTATS 0x20000000000ULL /* jobid in ptlrpc_body */
1333 #define OBD_CONNECT_UMASK 0x40000000000ULL /* create uses client umask */
1334 #define OBD_CONNECT_EINPROGRESS 0x80000000000ULL /* client handles -EINPROGRESS
1335 * RPC error properly */
1336 #define OBD_CONNECT_GRANT_PARAM 0x100000000000ULL/* extra grant params used for
1337 * finer space reservation */
1338 #define OBD_CONNECT_FLOCK_OWNER 0x200000000000ULL /* for the fixed 1.8
1339 * policy and 2.x server */
1340 #define OBD_CONNECT_LVB_TYPE 0x400000000000ULL /* variable type of LVB */
1341 #define OBD_CONNECT_NANOSEC_TIME 0x800000000000ULL /* nanosecond timestamps */
1342 #define OBD_CONNECT_LIGHTWEIGHT 0x1000000000000ULL/* lightweight connection */
1343 #define OBD_CONNECT_SHORTIO 0x2000000000000ULL/* short io */
1344 #define OBD_CONNECT_PINGLESS 0x4000000000000ULL/* pings not required */
1345 #define OBD_CONNECT_FLOCK_DEAD 0x8000000000000ULL/* improved flock deadlock detection */
1346 #define OBD_CONNECT_DISP_STRIPE 0x10000000000000ULL/* create stripe disposition*/
1347 #define OBD_CONNECT_OPEN_BY_FID 0x20000000000000ULL /* open by fid won't pack
1349 #define OBD_CONNECT_LFSCK 0x40000000000000ULL/* support online LFSCK */
1350 #define OBD_CONNECT_UNLINK_CLOSE 0x100000000000000ULL/* close file in unlink */
1351 #define OBD_CONNECT_DIR_STRIPE 0x400000000000000ULL /* striped DNE dir */
1354 * Please DO NOT add flag values here before first ensuring that this same
1355 * flag value is not in use on some other branch. Please clear any such
1356 * changes with senior engineers before starting to use a new flag. Then,
1357 * submit a small patch against EVERY branch that ONLY adds the new flag,
1358 * updates obd_connect_names[] for lprocfs_rd_connect_flags(), adds the
1359 * flag to check_obd_connect_data(), and updates wiretests accordingly, so it
1360 * can be approved and landed easily to reserve the flag for future use. */
1362 /* The MNE_SWAB flag is overloading the MDS_MDS bit only for the MGS
1363 * connection. It is a temporary bug fix for Imperative Recovery interop
1364 * between 2.2 and 2.3 x86/ppc nodes, and can be removed when interop for
1365 * 2.2 clients/servers is no longer needed. LU-1252/LU-1644. */
1366 #define OBD_CONNECT_MNE_SWAB OBD_CONNECT_MDS_MDS
1368 #define OCD_HAS_FLAG(ocd, flg) \
1369 (!!((ocd)->ocd_connect_flags & OBD_CONNECT_##flg))
1372 #ifdef HAVE_LRU_RESIZE_SUPPORT
1373 #define LRU_RESIZE_CONNECT_FLAG OBD_CONNECT_LRU_RESIZE
1375 #define LRU_RESIZE_CONNECT_FLAG 0
1378 #define MDT_CONNECT_SUPPORTED (OBD_CONNECT_RDONLY | OBD_CONNECT_VERSION | \
1379 OBD_CONNECT_ACL | OBD_CONNECT_XATTR | \
1380 OBD_CONNECT_IBITS | \
1381 OBD_CONNECT_NODEVOH | OBD_CONNECT_ATTRFID | \
1382 OBD_CONNECT_CANCELSET | OBD_CONNECT_AT | \
1383 OBD_CONNECT_RMT_CLIENT | \
1384 OBD_CONNECT_RMT_CLIENT_FORCE | \
1385 OBD_CONNECT_BRW_SIZE | OBD_CONNECT_MDS_CAPA | \
1386 OBD_CONNECT_OSS_CAPA | OBD_CONNECT_MDS_MDS | \
1387 OBD_CONNECT_FID | LRU_RESIZE_CONNECT_FLAG | \
1388 OBD_CONNECT_VBR | OBD_CONNECT_LOV_V3 | \
1389 OBD_CONNECT_SOM | OBD_CONNECT_FULL20 | \
1390 OBD_CONNECT_64BITHASH | OBD_CONNECT_JOBSTATS | \
1391 OBD_CONNECT_EINPROGRESS | \
1392 OBD_CONNECT_LIGHTWEIGHT | OBD_CONNECT_UMASK | \
1393 OBD_CONNECT_LVB_TYPE | OBD_CONNECT_LAYOUTLOCK |\
1394 OBD_CONNECT_PINGLESS | OBD_CONNECT_MAX_EASIZE |\
1395 OBD_CONNECT_FLOCK_DEAD | \
1396 OBD_CONNECT_DISP_STRIPE | OBD_CONNECT_LFSCK | \
1397 OBD_CONNECT_OPEN_BY_FID | \
1398 OBD_CONNECT_DIR_STRIPE)
1400 #define OST_CONNECT_SUPPORTED (OBD_CONNECT_SRVLOCK | OBD_CONNECT_GRANT | \
1401 OBD_CONNECT_REQPORTAL | OBD_CONNECT_VERSION | \
1402 OBD_CONNECT_TRUNCLOCK | OBD_CONNECT_INDEX | \
1403 OBD_CONNECT_BRW_SIZE | OBD_CONNECT_OSS_CAPA | \
1404 OBD_CONNECT_CANCELSET | OBD_CONNECT_AT | \
1405 LRU_RESIZE_CONNECT_FLAG | OBD_CONNECT_CKSUM | \
1406 OBD_CONNECT_RMT_CLIENT | \
1407 OBD_CONNECT_RMT_CLIENT_FORCE | OBD_CONNECT_VBR | \
1408 OBD_CONNECT_MDS | OBD_CONNECT_SKIP_ORPHAN | \
1409 OBD_CONNECT_GRANT_SHRINK | OBD_CONNECT_FULL20 | \
1410 OBD_CONNECT_64BITHASH | OBD_CONNECT_MAXBYTES | \
1411 OBD_CONNECT_MAX_EASIZE | \
1412 OBD_CONNECT_EINPROGRESS | \
1413 OBD_CONNECT_JOBSTATS | \
1414 OBD_CONNECT_LIGHTWEIGHT | OBD_CONNECT_LVB_TYPE|\
1415 OBD_CONNECT_LAYOUTLOCK | OBD_CONNECT_FID | \
1416 OBD_CONNECT_PINGLESS | OBD_CONNECT_LFSCK)
1417 #define ECHO_CONNECT_SUPPORTED (0)
1418 #define MGS_CONNECT_SUPPORTED (OBD_CONNECT_VERSION | OBD_CONNECT_AT | \
1419 OBD_CONNECT_FULL20 | OBD_CONNECT_IMP_RECOV | \
1420 OBD_CONNECT_MNE_SWAB | OBD_CONNECT_PINGLESS)
1422 /* Features required for this version of the client to work with server */
1423 #define CLIENT_CONNECT_MDT_REQD (OBD_CONNECT_IBITS | OBD_CONNECT_FID | \
1426 /* This structure is used for both request and reply.
1428 * If we eventually have separate connect data for different types, which we
1429 * almost certainly will, then perhaps we stick a union in here. */
1430 struct obd_connect_data_v1 {
1431 __u64 ocd_connect_flags; /* OBD_CONNECT_* per above */
1432 __u32 ocd_version; /* lustre release version number */
1433 __u32 ocd_grant; /* initial cache grant amount (bytes) */
1434 __u32 ocd_index; /* LOV index to connect to */
1435 __u32 ocd_brw_size; /* Maximum BRW size in bytes, must be 2^n */
1436 __u64 ocd_ibits_known; /* inode bits this client understands */
1437 __u8 ocd_blocksize; /* log2 of the backend filesystem blocksize */
1438 __u8 ocd_inodespace; /* log2 of the per-inode space consumption */
1439 __u16 ocd_grant_extent; /* per-extent grant overhead, in 1K blocks */
1440 __u32 ocd_unused; /* also fix lustre_swab_connect */
1441 __u64 ocd_transno; /* first transno from client to be replayed */
1442 __u32 ocd_group; /* MDS group on OST */
1443 __u32 ocd_cksum_types; /* supported checksum algorithms */
1444 __u32 ocd_max_easize; /* How big LOV EA can be on MDS */
1445 __u32 ocd_instance; /* also fix lustre_swab_connect */
1446 __u64 ocd_maxbytes; /* Maximum stripe size in bytes */
1449 struct obd_connect_data {
1450 __u64 ocd_connect_flags; /* OBD_CONNECT_* per above */
1451 __u32 ocd_version; /* lustre release version number */
1452 __u32 ocd_grant; /* initial cache grant amount (bytes) */
1453 __u32 ocd_index; /* LOV index to connect to */
1454 __u32 ocd_brw_size; /* Maximum BRW size in bytes */
1455 __u64 ocd_ibits_known; /* inode bits this client understands */
1456 __u8 ocd_blocksize; /* log2 of the backend filesystem blocksize */
1457 __u8 ocd_inodespace; /* log2 of the per-inode space consumption */
1458 __u16 ocd_grant_extent; /* per-extent grant overhead, in 1K blocks */
1459 __u32 ocd_unused; /* also fix lustre_swab_connect */
1460 __u64 ocd_transno; /* first transno from client to be replayed */
1461 __u32 ocd_group; /* MDS group on OST */
1462 __u32 ocd_cksum_types; /* supported checksum algorithms */
1463 __u32 ocd_max_easize; /* How big LOV EA can be on MDS */
1464 __u32 ocd_instance; /* instance # of this target */
1465 __u64 ocd_maxbytes; /* Maximum stripe size in bytes */
1466 /* Fields after ocd_maxbytes are only accessible by the receiver
1467 * if the corresponding flag in ocd_connect_flags is set. Accessing
1468 * any field after ocd_maxbytes on the receiver without a valid flag
1469 * may result in out-of-bound memory access and kernel oops. */
1470 __u64 padding1; /* added 2.1.0. also fix lustre_swab_connect */
1471 __u64 padding2; /* added 2.1.0. also fix lustre_swab_connect */
1472 __u64 padding3; /* added 2.1.0. also fix lustre_swab_connect */
1473 __u64 padding4; /* added 2.1.0. also fix lustre_swab_connect */
1474 __u64 padding5; /* added 2.1.0. also fix lustre_swab_connect */
1475 __u64 padding6; /* added 2.1.0. also fix lustre_swab_connect */
1476 __u64 padding7; /* added 2.1.0. also fix lustre_swab_connect */
1477 __u64 padding8; /* added 2.1.0. also fix lustre_swab_connect */
1478 __u64 padding9; /* added 2.1.0. also fix lustre_swab_connect */
1479 __u64 paddingA; /* added 2.1.0. also fix lustre_swab_connect */
1480 __u64 paddingB; /* added 2.1.0. also fix lustre_swab_connect */
1481 __u64 paddingC; /* added 2.1.0. also fix lustre_swab_connect */
1482 __u64 paddingD; /* added 2.1.0. also fix lustre_swab_connect */
1483 __u64 paddingE; /* added 2.1.0. also fix lustre_swab_connect */
1484 __u64 paddingF; /* added 2.1.0. also fix lustre_swab_connect */
1487 * Please DO NOT use any fields here before first ensuring that this same
1488 * field is not in use on some other branch. Please clear any such changes
1489 * with senior engineers before starting to use a new field. Then, submit
1490 * a small patch against EVERY branch that ONLY adds the new field along with
1491 * the matching OBD_CONNECT flag, so that can be approved and landed easily to
1492 * reserve the flag for future use. */
1495 extern void lustre_swab_connect(struct obd_connect_data *ocd);
1498 * Supported checksum algorithms. Up to 32 checksum types are supported.
1499 * (32-bit mask stored in obd_connect_data::ocd_cksum_types)
1500 * Please update DECLARE_CKSUM_NAME/OBD_CKSUM_ALL in obd.h when adding a new
1501 * algorithm and also the OBD_FL_CKSUM* flags.
1504 OBD_CKSUM_CRC32 = 0x00000001,
1505 OBD_CKSUM_ADLER = 0x00000002,
1506 OBD_CKSUM_CRC32C= 0x00000004,
1510 * OST requests: OBDO & OBD request records
1515 OST_REPLY = 0, /* reply ? */
1531 OST_QUOTACHECK = 18,
1533 OST_QUOTA_ADJUST_QUNIT = 20, /* not used since 2.4 */
1536 #define OST_FIRST_OPC OST_REPLY
1539 OBD_FL_INLINEDATA = 0x00000001,
1540 OBD_FL_OBDMDEXISTS = 0x00000002,
1541 OBD_FL_DELORPHAN = 0x00000004, /* if set in o_flags delete orphans */
1542 OBD_FL_NORPC = 0x00000008, /* set in o_flags do in OSC not OST */
1543 OBD_FL_IDONLY = 0x00000010, /* set in o_flags only adjust obj id*/
1544 OBD_FL_RECREATE_OBJS= 0x00000020, /* recreate missing obj */
1545 OBD_FL_DEBUG_CHECK = 0x00000040, /* echo client/server debug check */
1546 OBD_FL_NO_USRQUOTA = 0x00000100, /* the object's owner is over quota */
1547 OBD_FL_NO_GRPQUOTA = 0x00000200, /* the object's group is over quota */
1548 OBD_FL_CREATE_CROW = 0x00000400, /* object should be create on write */
1549 OBD_FL_SRVLOCK = 0x00000800, /* delegate DLM locking to server */
1550 OBD_FL_CKSUM_CRC32 = 0x00001000, /* CRC32 checksum type */
1551 OBD_FL_CKSUM_ADLER = 0x00002000, /* ADLER checksum type */
1552 OBD_FL_CKSUM_CRC32C = 0x00004000, /* CRC32C checksum type */
1553 OBD_FL_CKSUM_RSVD2 = 0x00008000, /* for future cksum types */
1554 OBD_FL_CKSUM_RSVD3 = 0x00010000, /* for future cksum types */
1555 OBD_FL_SHRINK_GRANT = 0x00020000, /* object shrink the grant */
1556 OBD_FL_MMAP = 0x00040000, /* object is mmapped on the client.
1557 * XXX: obsoleted - reserved for old
1558 * clients prior than 2.2 */
1559 OBD_FL_RECOV_RESEND = 0x00080000, /* recoverable resent */
1560 OBD_FL_NOSPC_BLK = 0x00100000, /* no more block space on OST */
1561 OBD_FL_FLUSH = 0x00200000, /* flush pages on the OST */
1562 OBD_FL_SHORT_IO = 0x00400000, /* short io request */
1564 /* Note that while these checksum values are currently separate bits,
1565 * in 2.x we can actually allow all values from 1-31 if we wanted. */
1566 OBD_FL_CKSUM_ALL = OBD_FL_CKSUM_CRC32 | OBD_FL_CKSUM_ADLER |
1567 OBD_FL_CKSUM_CRC32C,
1569 /* mask for local-only flag, which won't be sent over network */
1570 OBD_FL_LOCAL_MASK = 0xF0000000,
1574 * All LOV EA magics should have the same postfix, if some new version
1575 * Lustre instroduces new LOV EA magic, then when down-grade to an old
1576 * Lustre, even though the old version system does not recognizes such
1577 * new magic, it still can distinguish the corrupted cases by checking
1578 * the magic's postfix.
1580 #define LOV_MAGIC_MAGIC 0x0BD0
1581 #define LOV_MAGIC_MASK 0xFFFF
1583 #define LOV_MAGIC_V1 (0x0BD10000 | LOV_MAGIC_MAGIC)
1584 #define LOV_MAGIC_JOIN_V1 (0x0BD20000 | LOV_MAGIC_MAGIC)
1585 #define LOV_MAGIC_V3 (0x0BD30000 | LOV_MAGIC_MAGIC)
1586 #define LOV_MAGIC_MIGRATE (0x0BD40000 | LOV_MAGIC_MAGIC)
1587 /* reserved for specifying OSTs */
1588 #define LOV_MAGIC_SPECIFIC (0x0BD50000 | LOV_MAGIC_MAGIC)
1589 #define LOV_MAGIC LOV_MAGIC_V1
1592 * magic for fully defined striping
1593 * the idea is that we should have different magics for striping "hints"
1594 * (struct lov_user_md_v[13]) and defined ready-to-use striping (struct
1595 * lov_mds_md_v[13]). at the moment the magics are used in wire protocol,
1596 * we can't just change it w/o long way preparation, but we still need a
1597 * mechanism to allow LOD to differentiate hint versus ready striping.
1598 * so, at the moment we do a trick: MDT knows what to expect from request
1599 * depending on the case (replay uses ready striping, non-replay req uses
1600 * hints), so MDT replaces magic with appropriate one and now LOD can
1601 * easily understand what's inside -bzzz
1603 #define LOV_MAGIC_V1_DEF 0x0CD10BD0
1604 #define LOV_MAGIC_V3_DEF 0x0CD30BD0
1606 #define lov_pattern(pattern) (pattern & ~LOV_PATTERN_F_MASK)
1607 #define lov_pattern_flags(pattern) (pattern & LOV_PATTERN_F_MASK)
1609 #define lov_ost_data lov_ost_data_v1
1610 struct lov_ost_data_v1 { /* per-stripe data structure (little-endian)*/
1611 struct ost_id l_ost_oi; /* OST object ID */
1612 __u32 l_ost_gen; /* generation of this l_ost_idx */
1613 __u32 l_ost_idx; /* OST index in LOV (lov_tgt_desc->tgts) */
1616 #define lov_mds_md lov_mds_md_v1
1617 struct lov_mds_md_v1 { /* LOV EA mds/wire data (little-endian) */
1618 __u32 lmm_magic; /* magic number = LOV_MAGIC_V1 */
1619 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
1620 struct ost_id lmm_oi; /* LOV object ID */
1621 __u32 lmm_stripe_size; /* size of stripe in bytes */
1622 /* lmm_stripe_count used to be __u32 */
1623 __u16 lmm_stripe_count; /* num stripes in use for this object */
1624 __u16 lmm_layout_gen; /* layout generation number */
1625 struct lov_ost_data_v1 lmm_objects[0]; /* per-stripe data */
1629 * Sigh, because pre-2.4 uses
1630 * struct lov_mds_md_v1 {
1632 * __u64 lmm_object_id;
1633 * __u64 lmm_object_seq;
1636 * to identify the LOV(MDT) object, and lmm_object_seq will
1637 * be normal_fid, which make it hard to combine these conversion
1638 * to ostid_to FID. so we will do lmm_oi/fid conversion separately
1640 * We can tell the lmm_oi by this way,
1641 * 1.8: lmm_object_id = {inode}, lmm_object_gr = 0
1642 * 2.1: lmm_object_id = {oid < 128k}, lmm_object_seq = FID_SEQ_NORMAL
1643 * 2.4: lmm_oi.f_seq = FID_SEQ_NORMAL, lmm_oi.f_oid = {oid < 128k},
1646 * But currently lmm_oi/lsm_oi does not have any "real" usages,
1647 * except for printing some information, and the user can always
1648 * get the real FID from LMA, besides this multiple case check might
1649 * make swab more complicate. So we will keep using id/seq for lmm_oi.
1652 static inline void fid_to_lmm_oi(const struct lu_fid *fid,
1655 oi->oi.oi_id = fid_oid(fid);
1656 oi->oi.oi_seq = fid_seq(fid);
1659 static inline void lmm_oi_set_seq(struct ost_id *oi, __u64 seq)
1661 oi->oi.oi_seq = seq;
1664 static inline void lmm_oi_set_id(struct ost_id *oi, __u64 oid)
1669 static inline __u64 lmm_oi_id(const struct ost_id *oi)
1671 return oi->oi.oi_id;
1674 static inline __u64 lmm_oi_seq(const struct ost_id *oi)
1676 return oi->oi.oi_seq;
1679 static inline void lmm_oi_le_to_cpu(struct ost_id *dst_oi,
1680 const struct ost_id *src_oi)
1682 dst_oi->oi.oi_id = le64_to_cpu(src_oi->oi.oi_id);
1683 dst_oi->oi.oi_seq = le64_to_cpu(src_oi->oi.oi_seq);
1686 static inline void lmm_oi_cpu_to_le(struct ost_id *dst_oi,
1687 const struct ost_id *src_oi)
1689 dst_oi->oi.oi_id = cpu_to_le64(src_oi->oi.oi_id);
1690 dst_oi->oi.oi_seq = cpu_to_le64(src_oi->oi.oi_seq);
1693 /* extern void lustre_swab_lov_mds_md(struct lov_mds_md *llm); */
1695 #define MAX_MD_SIZE (sizeof(struct lov_mds_md) + 4 * sizeof(struct lov_ost_data))
1696 #define MIN_MD_SIZE (sizeof(struct lov_mds_md) + 1 * sizeof(struct lov_ost_data))
1698 /* This is the default MDT reply size allocated, should the striping be bigger,
1699 * it will be reallocated in mdt_fix_reply.
1700 * 100 stripes is a bit less than 2.5k of data */
1701 #define DEF_REP_MD_SIZE (sizeof(struct lov_mds_md) + \
1702 100 * sizeof(struct lov_ost_data))
1704 #define XATTR_NAME_ACL_ACCESS "system.posix_acl_access"
1705 #define XATTR_NAME_ACL_DEFAULT "system.posix_acl_default"
1706 #define XATTR_USER_PREFIX "user."
1707 #define XATTR_TRUSTED_PREFIX "trusted."
1708 #define XATTR_SECURITY_PREFIX "security."
1710 #define XATTR_NAME_LOV "trusted.lov"
1711 #define XATTR_NAME_LMA "trusted.lma"
1712 #define XATTR_NAME_LMV "trusted.lmv"
1713 #define XATTR_NAME_DEFAULT_LMV "trusted.dmv"
1714 #define XATTR_NAME_LINK "trusted.link"
1715 #define XATTR_NAME_FID "trusted.fid"
1716 #define XATTR_NAME_VERSION "trusted.version"
1717 #define XATTR_NAME_SOM "trusted.som"
1718 #define XATTR_NAME_HSM "trusted.hsm"
1719 #define XATTR_NAME_LFSCK_BITMAP "trusted.lfsck_bitmap"
1721 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 8, 53, 0)
1722 # define XATTR_NAME_LFSCK_NAMESPACE_OLD "trusted.lfsck_namespace"
1725 #define XATTR_NAME_LFSCK_NAMESPACE "trusted.lfsck_ns"
1726 #define XATTR_NAME_MAX_LEN 32 /* increase this, if there is longer name. */
1728 struct lov_mds_md_v3 { /* LOV EA mds/wire data (little-endian) */
1729 __u32 lmm_magic; /* magic number = LOV_MAGIC_V3 */
1730 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
1731 struct ost_id lmm_oi; /* LOV object ID */
1732 __u32 lmm_stripe_size; /* size of stripe in bytes */
1733 /* lmm_stripe_count used to be __u32 */
1734 __u16 lmm_stripe_count; /* num stripes in use for this object */
1735 __u16 lmm_layout_gen; /* layout generation number */
1736 char lmm_pool_name[LOV_MAXPOOLNAME + 1]; /* must be 32bit aligned */
1737 struct lov_ost_data_v1 lmm_objects[0]; /* per-stripe data */
1740 static inline __u32 lov_mds_md_size(__u16 stripes, __u32 lmm_magic)
1742 if (lmm_magic == LOV_MAGIC_V3)
1743 return sizeof(struct lov_mds_md_v3) +
1744 stripes * sizeof(struct lov_ost_data_v1);
1746 return sizeof(struct lov_mds_md_v1) +
1747 stripes * sizeof(struct lov_ost_data_v1);
1751 lov_mds_md_max_stripe_count(size_t buf_size, __u32 lmm_magic)
1753 switch (lmm_magic) {
1754 case LOV_MAGIC_V1: {
1755 struct lov_mds_md_v1 lmm;
1757 if (buf_size < sizeof(lmm))
1760 return (buf_size - sizeof(lmm)) / sizeof(lmm.lmm_objects[0]);
1762 case LOV_MAGIC_V3: {
1763 struct lov_mds_md_v3 lmm;
1765 if (buf_size < sizeof(lmm))
1768 return (buf_size - sizeof(lmm)) / sizeof(lmm.lmm_objects[0]);
1775 #define OBD_MD_FLID (0x00000001ULL) /* object ID */
1776 #define OBD_MD_FLATIME (0x00000002ULL) /* access time */
1777 #define OBD_MD_FLMTIME (0x00000004ULL) /* data modification time */
1778 #define OBD_MD_FLCTIME (0x00000008ULL) /* change time */
1779 #define OBD_MD_FLSIZE (0x00000010ULL) /* size */
1780 #define OBD_MD_FLBLOCKS (0x00000020ULL) /* allocated blocks count */
1781 #define OBD_MD_FLBLKSZ (0x00000040ULL) /* block size */
1782 #define OBD_MD_FLMODE (0x00000080ULL) /* access bits (mode & ~S_IFMT) */
1783 #define OBD_MD_FLTYPE (0x00000100ULL) /* object type (mode & S_IFMT) */
1784 #define OBD_MD_FLUID (0x00000200ULL) /* user ID */
1785 #define OBD_MD_FLGID (0x00000400ULL) /* group ID */
1786 #define OBD_MD_FLFLAGS (0x00000800ULL) /* flags word */
1787 #define OBD_MD_FLNLINK (0x00002000ULL) /* link count */
1788 #define OBD_MD_FLGENER (0x00004000ULL) /* generation number */
1789 /*#define OBD_MD_FLINLINE (0x00008000ULL) inline data. used until 1.6.5 */
1790 #define OBD_MD_FLRDEV (0x00010000ULL) /* device number */
1791 #define OBD_MD_FLEASIZE (0x00020000ULL) /* extended attribute data */
1792 #define OBD_MD_LINKNAME (0x00040000ULL) /* symbolic link target */
1793 #define OBD_MD_FLHANDLE (0x00080000ULL) /* file/lock handle */
1794 #define OBD_MD_FLCKSUM (0x00100000ULL) /* bulk data checksum */
1795 #define OBD_MD_FLQOS (0x00200000ULL) /* quality of service stats */
1796 /*#define OBD_MD_FLOSCOPQ (0x00400000ULL) osc opaque data, never used */
1797 #define OBD_MD_FLCOOKIE (0x00800000ULL) /* log cancellation cookie */
1798 #define OBD_MD_FLGROUP (0x01000000ULL) /* group */
1799 #define OBD_MD_FLFID (0x02000000ULL) /* ->ost write inline fid */
1800 #define OBD_MD_FLEPOCH (0x04000000ULL) /* ->ost write with ioepoch */
1801 /* ->mds if epoch opens or closes */
1802 #define OBD_MD_FLGRANT (0x08000000ULL) /* ost preallocation space grant */
1803 #define OBD_MD_FLDIREA (0x10000000ULL) /* dir's extended attribute data */
1804 #define OBD_MD_FLUSRQUOTA (0x20000000ULL) /* over quota flags sent from ost */
1805 #define OBD_MD_FLGRPQUOTA (0x40000000ULL) /* over quota flags sent from ost */
1806 #define OBD_MD_FLMODEASIZE (0x80000000ULL) /* EA size will be changed */
1808 #define OBD_MD_MDS (0x0000000100000000ULL) /* where an inode lives on */
1809 #define OBD_MD_REINT (0x0000000200000000ULL) /* reintegrate oa */
1810 #define OBD_MD_MEA (0x0000000400000000ULL) /* CMD split EA */
1811 #define OBD_MD_TSTATE (0x0000000800000000ULL) /* transient state field */
1813 #define OBD_MD_FLXATTR (0x0000001000000000ULL) /* xattr */
1814 #define OBD_MD_FLXATTRLS (0x0000002000000000ULL) /* xattr list */
1815 #define OBD_MD_FLXATTRRM (0x0000004000000000ULL) /* xattr remove */
1816 #define OBD_MD_FLACL (0x0000008000000000ULL) /* ACL */
1817 #define OBD_MD_FLRMTPERM (0x0000010000000000ULL) /* remote permission */
1818 #define OBD_MD_FLMDSCAPA (0x0000020000000000ULL) /* MDS capability */
1819 #define OBD_MD_FLOSSCAPA (0x0000040000000000ULL) /* OSS capability */
1820 #define OBD_MD_FLCKSPLIT (0x0000080000000000ULL) /* Check split on server */
1821 #define OBD_MD_FLCROSSREF (0x0000100000000000ULL) /* Cross-ref case */
1822 #define OBD_MD_FLGETATTRLOCK (0x0000200000000000ULL) /* Get IOEpoch attributes
1823 * under lock; for xattr
1824 * requests means the
1825 * client holds the lock */
1826 #define OBD_MD_FLOBJCOUNT (0x0000400000000000ULL) /* for multiple destroy */
1828 #define OBD_MD_FLRMTLSETFACL (0x0001000000000000ULL) /* lfs lsetfacl case */
1829 #define OBD_MD_FLRMTLGETFACL (0x0002000000000000ULL) /* lfs lgetfacl case */
1830 #define OBD_MD_FLRMTRSETFACL (0x0004000000000000ULL) /* lfs rsetfacl case */
1831 #define OBD_MD_FLRMTRGETFACL (0x0008000000000000ULL) /* lfs rgetfacl case */
1833 #define OBD_MD_FLDATAVERSION (0x0010000000000000ULL) /* iversion sum */
1834 #define OBD_MD_FLRELEASED (0x0020000000000000ULL) /* file released */
1836 #define OBD_MD_DEFAULT_MEA (0x0040000000000000ULL) /* default MEA */
1838 #define OBD_MD_FLGETATTR (OBD_MD_FLID | OBD_MD_FLATIME | OBD_MD_FLMTIME | \
1839 OBD_MD_FLCTIME | OBD_MD_FLSIZE | OBD_MD_FLBLKSZ | \
1840 OBD_MD_FLMODE | OBD_MD_FLTYPE | OBD_MD_FLUID | \
1841 OBD_MD_FLGID | OBD_MD_FLFLAGS | OBD_MD_FLNLINK | \
1842 OBD_MD_FLGENER | OBD_MD_FLRDEV | OBD_MD_FLGROUP)
1844 #define OBD_MD_FLXATTRALL (OBD_MD_FLXATTR | OBD_MD_FLXATTRLS)
1846 /* don't forget obdo_fid which is way down at the bottom so it can
1847 * come after the definition of llog_cookie */
1851 HSS_CLEARMASK = 0x02,
1852 HSS_ARCHIVE_ID = 0x04,
1855 struct hsm_state_set {
1857 __u32 hss_archive_id;
1859 __u64 hss_clearmask;
1862 extern void lustre_swab_hsm_user_state(struct hsm_user_state *hus);
1863 extern void lustre_swab_hsm_state_set(struct hsm_state_set *hss);
1865 extern void lustre_swab_obd_statfs (struct obd_statfs *os);
1867 /* ost_body.data values for OST_BRW */
1869 #define OBD_BRW_READ 0x01
1870 #define OBD_BRW_WRITE 0x02
1871 #define OBD_BRW_RWMASK (OBD_BRW_READ | OBD_BRW_WRITE)
1872 #define OBD_BRW_SYNC 0x08 /* this page is a part of synchronous
1873 * transfer and is not accounted in
1875 #define OBD_BRW_CHECK 0x10
1876 #define OBD_BRW_FROM_GRANT 0x20 /* the osc manages this under llite */
1877 #define OBD_BRW_GRANTED 0x40 /* the ost manages this */
1878 #define OBD_BRW_NOCACHE 0x80 /* this page is a part of non-cached IO */
1879 #define OBD_BRW_NOQUOTA 0x100
1880 #define OBD_BRW_SRVLOCK 0x200 /* Client holds no lock over this page */
1881 #define OBD_BRW_ASYNC 0x400 /* Server may delay commit to disk */
1882 #define OBD_BRW_MEMALLOC 0x800 /* Client runs in the "kswapd" context */
1883 #define OBD_BRW_OVER_USRQUOTA 0x1000 /* Running out of user quota */
1884 #define OBD_BRW_OVER_GRPQUOTA 0x2000 /* Running out of group quota */
1885 #define OBD_BRW_SOFT_SYNC 0x4000 /* This flag notifies the server
1886 * that the client is running low on
1887 * space for unstable pages; asking
1888 * it to sync quickly */
1890 #define OBD_OBJECT_EOF LUSTRE_EOF
1892 #define OST_MIN_PRECREATE 32
1893 #define OST_MAX_PRECREATE 20000
1896 struct ost_id ioo_oid; /* object ID, if multi-obj BRW */
1897 __u32 ioo_max_brw; /* low 16 bits were o_mode before 2.4,
1898 * now (PTLRPC_BULK_OPS_COUNT - 1) in
1899 * high 16 bits in 2.4 and later */
1900 __u32 ioo_bufcnt; /* number of niobufs for this object */
1903 #define IOOBJ_MAX_BRW_BITS 16
1904 #define IOOBJ_TYPE_MASK ((1U << IOOBJ_MAX_BRW_BITS) - 1)
1905 #define ioobj_max_brw_get(ioo) (((ioo)->ioo_max_brw >> IOOBJ_MAX_BRW_BITS) + 1)
1906 #define ioobj_max_brw_set(ioo, num) \
1907 do { (ioo)->ioo_max_brw = ((num) - 1) << IOOBJ_MAX_BRW_BITS; } while (0)
1909 extern void lustre_swab_obd_ioobj (struct obd_ioobj *ioo);
1911 /* multiple of 8 bytes => can array */
1912 struct niobuf_remote {
1918 void lustre_swab_niobuf_remote(struct niobuf_remote *nbr);
1920 /* lock value block communicated between the filter and llite */
1922 /* OST_LVB_ERR_INIT is needed because the return code in rc is
1923 * negative, i.e. because ((MASK + rc) & MASK) != MASK. */
1924 #define OST_LVB_ERR_INIT 0xffbadbad80000000ULL
1925 #define OST_LVB_ERR_MASK 0xffbadbad00000000ULL
1926 #define OST_LVB_IS_ERR(blocks) \
1927 ((blocks & OST_LVB_ERR_MASK) == OST_LVB_ERR_MASK)
1928 #define OST_LVB_SET_ERR(blocks, rc) \
1929 do { blocks = OST_LVB_ERR_INIT + rc; } while (0)
1930 #define OST_LVB_GET_ERR(blocks) (int)(blocks - OST_LVB_ERR_INIT)
1940 extern void lustre_swab_ost_lvb_v1(struct ost_lvb_v1 *lvb);
1954 extern void lustre_swab_ost_lvb(struct ost_lvb *lvb);
1957 * lquota data structures
1960 #ifndef QUOTABLOCK_BITS
1961 # define QUOTABLOCK_BITS LUSTRE_QUOTABLOCK_BITS
1964 #ifndef QUOTABLOCK_SIZE
1965 # define QUOTABLOCK_SIZE LUSTRE_QUOTABLOCK_SIZE
1969 # define toqb lustre_stoqb
1972 /* The lquota_id structure is an union of all the possible identifier types that
1973 * can be used with quota, this includes:
1976 * - a FID which can be used for per-directory quota in the future */
1978 struct lu_fid qid_fid; /* FID for per-directory quota */
1979 __u64 qid_uid; /* user identifier */
1980 __u64 qid_gid; /* group identifier */
1983 /* quotactl management */
1984 struct obd_quotactl {
1986 __u32 qc_type; /* see Q_* flag below */
1989 struct obd_dqinfo qc_dqinfo;
1990 struct obd_dqblk qc_dqblk;
1993 extern void lustre_swab_obd_quotactl(struct obd_quotactl *q);
1995 #define Q_COPY(out, in, member) (out)->member = (in)->member
1997 #define QCTL_COPY(out, in) \
1999 Q_COPY(out, in, qc_cmd); \
2000 Q_COPY(out, in, qc_type); \
2001 Q_COPY(out, in, qc_id); \
2002 Q_COPY(out, in, qc_stat); \
2003 Q_COPY(out, in, qc_dqinfo); \
2004 Q_COPY(out, in, qc_dqblk); \
2007 /* Body of quota request used for quota acquire/release RPCs between quota
2008 * master (aka QMT) and slaves (ak QSD). */
2010 struct lu_fid qb_fid; /* FID of global index packing the pool ID
2011 * and type (data or metadata) as well as
2012 * the quota type (user or group). */
2013 union lquota_id qb_id; /* uid or gid or directory FID */
2014 __u32 qb_flags; /* see below */
2016 __u64 qb_count; /* acquire/release count (kbytes/inodes) */
2017 __u64 qb_usage; /* current slave usage (kbytes/inodes) */
2018 __u64 qb_slv_ver; /* slave index file version */
2019 struct lustre_handle qb_lockh; /* per-ID lock handle */
2020 struct lustre_handle qb_glb_lockh; /* global lock handle */
2021 __u64 qb_padding1[4];
2024 /* When the quota_body is used in the reply of quota global intent
2025 * lock (IT_QUOTA_CONN) reply, qb_fid contains slave index file FID. */
2026 #define qb_slv_fid qb_fid
2027 /* qb_usage is the current qunit (in kbytes/inodes) when quota_body is used in
2029 #define qb_qunit qb_usage
2031 #define QUOTA_DQACQ_FL_ACQ 0x1 /* acquire quota */
2032 #define QUOTA_DQACQ_FL_PREACQ 0x2 /* pre-acquire */
2033 #define QUOTA_DQACQ_FL_REL 0x4 /* release quota */
2034 #define QUOTA_DQACQ_FL_REPORT 0x8 /* report usage */
2036 extern void lustre_swab_quota_body(struct quota_body *b);
2038 /* Quota types currently supported */
2040 LQUOTA_TYPE_USR = 0x00, /* maps to USRQUOTA */
2041 LQUOTA_TYPE_GRP = 0x01, /* maps to GRPQUOTA */
2045 /* There are 2 different resource types on which a quota limit can be enforced:
2046 * - inodes on the MDTs
2047 * - blocks on the OSTs */
2049 LQUOTA_RES_MD = 0x01, /* skip 0 to avoid null oid in FID */
2050 LQUOTA_RES_DT = 0x02,
2052 LQUOTA_FIRST_RES = LQUOTA_RES_MD
2054 #define LQUOTA_NR_RES (LQUOTA_LAST_RES - LQUOTA_FIRST_RES + 1)
2057 * Space accounting support
2058 * Format of an accounting record, providing disk usage information for a given
2061 struct lquota_acct_rec { /* 16 bytes */
2062 __u64 bspace; /* current space in use */
2063 __u64 ispace; /* current # inodes in use */
2067 * Global quota index support
2068 * Format of a global record, providing global quota settings for a given quota
2071 struct lquota_glb_rec { /* 32 bytes */
2072 __u64 qbr_hardlimit; /* quota hard limit, in #inodes or kbytes */
2073 __u64 qbr_softlimit; /* quota soft limit, in #inodes or kbytes */
2074 __u64 qbr_time; /* grace time, in seconds */
2075 __u64 qbr_granted; /* how much is granted to slaves, in #inodes or
2080 * Slave index support
2081 * Format of a slave record, recording how much space is granted to a given
2084 struct lquota_slv_rec { /* 8 bytes */
2085 __u64 qsr_granted; /* space granted to the slave for the key=ID,
2086 * in #inodes or kbytes */
2089 /* Data structures associated with the quota locks */
2091 /* Glimpse descriptor used for the index & per-ID quota locks */
2092 struct ldlm_gl_lquota_desc {
2093 union lquota_id gl_id; /* quota ID subject to the glimpse */
2094 __u64 gl_flags; /* see LQUOTA_FL* below */
2095 __u64 gl_ver; /* new index version */
2096 __u64 gl_hardlimit; /* new hardlimit or qunit value */
2097 __u64 gl_softlimit; /* new softlimit */
2101 #define gl_qunit gl_hardlimit /* current qunit value used when
2102 * glimpsing per-ID quota locks */
2104 /* quota glimpse flags */
2105 #define LQUOTA_FL_EDQUOT 0x1 /* user/group out of quota space on QMT */
2107 /* LVB used with quota (global and per-ID) locks */
2109 __u64 lvb_flags; /* see LQUOTA_FL* above */
2110 __u64 lvb_id_may_rel; /* space that might be released later */
2111 __u64 lvb_id_rel; /* space released by the slave for this ID */
2112 __u64 lvb_id_qunit; /* current qunit value */
2116 extern void lustre_swab_lquota_lvb(struct lquota_lvb *lvb);
2118 /* LVB used with global quota lock */
2119 #define lvb_glb_ver lvb_id_may_rel /* current version of the global index */
2127 #define QUOTA_FIRST_OPC QUOTA_DQACQ
2136 MDS_GETATTR_NAME = 34,
2141 MDS_DISCONNECT = 39,
2144 MDS_PIN = 42, /* obsolete, never used in a release */
2145 MDS_UNPIN = 43, /* obsolete, never used in a release */
2147 MDS_DONE_WRITING = 45,
2149 MDS_QUOTACHECK = 47,
2152 MDS_SETXATTR = 50, /* obsolete, now it's MDS_REINT op */
2154 MDS_IS_SUBDIR = 52, /* obsolete, never used in a release */
2156 MDS_HSM_STATE_GET = 54,
2157 MDS_HSM_STATE_SET = 55,
2158 MDS_HSM_ACTION = 56,
2159 MDS_HSM_PROGRESS = 57,
2160 MDS_HSM_REQUEST = 58,
2161 MDS_HSM_CT_REGISTER = 59,
2162 MDS_HSM_CT_UNREGISTER = 60,
2163 MDS_SWAP_LAYOUTS = 61,
2167 #define MDS_FIRST_OPC MDS_GETATTR
2170 /* opcodes for object update */
2176 #define OUT_UPDATE_FIRST_OPC OUT_UPDATE
2193 } mds_reint_t, mdt_reint_t;
2195 extern void lustre_swab_generic_32s (__u32 *val);
2197 /* the disposition of the intent outlines what was executed */
2198 #define DISP_IT_EXECD 0x00000001
2199 #define DISP_LOOKUP_EXECD 0x00000002
2200 #define DISP_LOOKUP_NEG 0x00000004
2201 #define DISP_LOOKUP_POS 0x00000008
2202 #define DISP_OPEN_CREATE 0x00000010
2203 #define DISP_OPEN_OPEN 0x00000020
2204 #define DISP_ENQ_COMPLETE 0x00400000 /* obsolete and unused */
2205 #define DISP_ENQ_OPEN_REF 0x00800000
2206 #define DISP_ENQ_CREATE_REF 0x01000000
2207 #define DISP_OPEN_LOCK 0x02000000
2208 #define DISP_OPEN_LEASE 0x04000000
2209 #define DISP_OPEN_STRIPE 0x08000000
2210 #define DISP_OPEN_DENY 0x10000000
2212 /* INODE LOCK PARTS */
2213 #define MDS_INODELOCK_LOOKUP 0x000001 /* For namespace, dentry etc, and also
2214 * was used to protect permission (mode,
2215 * owner, group etc) before 2.4. */
2216 #define MDS_INODELOCK_UPDATE 0x000002 /* size, links, timestamps */
2217 #define MDS_INODELOCK_OPEN 0x000004 /* For opened files */
2218 #define MDS_INODELOCK_LAYOUT 0x000008 /* for layout */
2220 /* The PERM bit is added int 2.4, and it is used to protect permission(mode,
2221 * owner, group, acl etc), so to separate the permission from LOOKUP lock.
2222 * Because for remote directories(in DNE), these locks will be granted by
2223 * different MDTs(different ldlm namespace).
2225 * For local directory, MDT will always grant UPDATE_LOCK|PERM_LOCK together.
2226 * For Remote directory, the master MDT, where the remote directory is, will
2227 * grant UPDATE_LOCK|PERM_LOCK, and the remote MDT, where the name entry is,
2228 * will grant LOOKUP_LOCK. */
2229 #define MDS_INODELOCK_PERM 0x000010
2230 #define MDS_INODELOCK_XATTR 0x000020 /* extended attributes */
2232 #define MDS_INODELOCK_MAXSHIFT 5
2233 /* This FULL lock is useful to take on unlink sort of operations */
2234 #define MDS_INODELOCK_FULL ((1<<(MDS_INODELOCK_MAXSHIFT+1))-1)
2236 extern void lustre_swab_ll_fid (struct ll_fid *fid);
2238 /* NOTE: until Lustre 1.8.7/2.1.1 the fid_ver() was packed into name[2],
2239 * but was moved into name[1] along with the OID to avoid consuming the
2240 * name[2,3] fields that need to be used for the quota id (also a FID). */
2242 LUSTRE_RES_ID_SEQ_OFF = 0,
2243 LUSTRE_RES_ID_VER_OID_OFF = 1,
2244 LUSTRE_RES_ID_WAS_VER_OFF = 2, /* see note above */
2245 LUSTRE_RES_ID_QUOTA_SEQ_OFF = 2,
2246 LUSTRE_RES_ID_QUOTA_VER_OID_OFF = 3,
2247 LUSTRE_RES_ID_HSH_OFF = 3
2250 #define MDS_STATUS_CONN 1
2251 #define MDS_STATUS_LOV 2
2253 /* mdt_thread_info.mti_flags. */
2255 /* The flag indicates Size-on-MDS attributes are changed. */
2256 MF_SOM_CHANGE = (1 << 0),
2257 /* Flags indicates an epoch opens or closes. */
2258 MF_EPOCH_OPEN = (1 << 1),
2259 MF_EPOCH_CLOSE = (1 << 2),
2260 MF_MDC_CANCEL_FID1 = (1 << 3),
2261 MF_MDC_CANCEL_FID2 = (1 << 4),
2262 MF_MDC_CANCEL_FID3 = (1 << 5),
2263 MF_MDC_CANCEL_FID4 = (1 << 6),
2264 /* There is a pending attribute update. */
2265 MF_SOM_AU = (1 << 7),
2266 /* Cancel OST locks while getattr OST attributes. */
2267 MF_GETATTR_LOCK = (1 << 8),
2268 MF_GET_MDT_IDX = (1 << 9),
2271 #define MF_SOM_LOCAL_FLAGS (MF_SOM_CHANGE | MF_EPOCH_OPEN | MF_EPOCH_CLOSE)
2273 #define LUSTRE_BFLAG_UNCOMMITTED_WRITES 0x1
2275 /* these should be identical to their EXT4_*_FL counterparts, they are
2276 * redefined here only to avoid dragging in fs/ext4/ext4.h */
2277 #define LUSTRE_SYNC_FL 0x00000008 /* Synchronous updates */
2278 #define LUSTRE_IMMUTABLE_FL 0x00000010 /* Immutable file */
2279 #define LUSTRE_APPEND_FL 0x00000020 /* writes to file may only append */
2280 #define LUSTRE_NOATIME_FL 0x00000080 /* do not update atime */
2281 #define LUSTRE_DIRSYNC_FL 0x00010000 /* dirsync behaviour (dir only) */
2284 /* Convert wire LUSTRE_*_FL to corresponding client local VFS S_* values
2285 * for the client inode i_flags. The LUSTRE_*_FL are the Lustre wire
2286 * protocol equivalents of LDISKFS_*_FL values stored on disk, while
2287 * the S_* flags are kernel-internal values that change between kernel
2288 * versions. These flags are set/cleared via FSFILT_IOC_{GET,SET}_FLAGS.
2289 * See b=16526 for a full history. */
2290 static inline int ll_ext_to_inode_flags(int flags)
2292 return (((flags & LUSTRE_SYNC_FL) ? S_SYNC : 0) |
2293 ((flags & LUSTRE_NOATIME_FL) ? S_NOATIME : 0) |
2294 ((flags & LUSTRE_APPEND_FL) ? S_APPEND : 0) |
2295 #if defined(S_DIRSYNC)
2296 ((flags & LUSTRE_DIRSYNC_FL) ? S_DIRSYNC : 0) |
2298 ((flags & LUSTRE_IMMUTABLE_FL) ? S_IMMUTABLE : 0));
2301 static inline int ll_inode_to_ext_flags(int iflags)
2303 return (((iflags & S_SYNC) ? LUSTRE_SYNC_FL : 0) |
2304 ((iflags & S_NOATIME) ? LUSTRE_NOATIME_FL : 0) |
2305 ((iflags & S_APPEND) ? LUSTRE_APPEND_FL : 0) |
2306 #if defined(S_DIRSYNC)
2307 ((iflags & S_DIRSYNC) ? LUSTRE_DIRSYNC_FL : 0) |
2309 ((iflags & S_IMMUTABLE) ? LUSTRE_IMMUTABLE_FL : 0));
2313 /* 64 possible states */
2314 enum md_transient_state {
2315 MS_RESTORE = (1 << 0), /* restore is running */
2319 struct lu_fid mbo_fid1;
2320 struct lu_fid mbo_fid2;
2321 struct lustre_handle mbo_handle;
2323 __u64 mbo_size; /* Offset, in the case of MDS_READPAGE */
2327 __u64 mbo_blocks; /* XID, in the case of MDS_READPAGE */
2329 __u64 mbo_t_state; /* transient file state defined in
2330 * enum md_transient_state
2331 * was "ino" until 2.4.0 */
2334 __u32 mbo_capability;
2340 __u32 mbo_nlink; /* #bytes to read in the case of MDS_READPAGE */
2341 __u32 mbo_unused2; /* was "generation" until 2.4.0 */
2343 __u32 mbo_eadatasize;
2345 __u32 mbo_max_mdsize;
2346 __u32 mbo_max_cookiesize;
2347 __u32 mbo_uid_h; /* high 32-bits of uid, for FUID */
2348 __u32 mbo_gid_h; /* high 32-bits of gid, for FUID */
2349 __u32 mbo_padding_5; /* also fix lustre_swab_mdt_body */
2350 __u64 mbo_padding_6;
2351 __u64 mbo_padding_7;
2352 __u64 mbo_padding_8;
2353 __u64 mbo_padding_9;
2354 __u64 mbo_padding_10;
2357 extern void lustre_swab_mdt_body (struct mdt_body *b);
2359 struct mdt_ioepoch {
2360 struct lustre_handle handle;
2366 extern void lustre_swab_mdt_ioepoch (struct mdt_ioepoch *b);
2368 /* permissions for md_perm.mp_perm */
2370 CFS_SETUID_PERM = 0x01,
2371 CFS_SETGID_PERM = 0x02,
2372 CFS_SETGRP_PERM = 0x04,
2373 CFS_RMTACL_PERM = 0x08,
2374 CFS_RMTOWN_PERM = 0x10
2377 /* inode access permission for remote user, the inode info are omitted,
2378 * for client knows them. */
2379 struct mdt_remote_perm {
2386 __u32 rp_access_perm; /* MAY_READ/WRITE/EXEC */
2390 extern void lustre_swab_mdt_remote_perm(struct mdt_remote_perm *p);
2392 struct mdt_rec_setattr {
2402 __u32 sa_padding_1_h;
2403 struct lu_fid sa_fid;
2412 __u32 sa_attr_flags;
2414 __u32 sa_bias; /* some operation flags */
2420 extern void lustre_swab_mdt_rec_setattr (struct mdt_rec_setattr *sa);
2423 * Attribute flags used in mdt_rec_setattr::sa_valid.
2424 * The kernel's #defines for ATTR_* should not be used over the network
2425 * since the client and MDS may run different kernels (see bug 13828)
2426 * Therefore, we should only use MDS_ATTR_* attributes for sa_valid.
2428 #define MDS_ATTR_MODE 0x1ULL /* = 1 */
2429 #define MDS_ATTR_UID 0x2ULL /* = 2 */
2430 #define MDS_ATTR_GID 0x4ULL /* = 4 */
2431 #define MDS_ATTR_SIZE 0x8ULL /* = 8 */
2432 #define MDS_ATTR_ATIME 0x10ULL /* = 16 */
2433 #define MDS_ATTR_MTIME 0x20ULL /* = 32 */
2434 #define MDS_ATTR_CTIME 0x40ULL /* = 64 */
2435 #define MDS_ATTR_ATIME_SET 0x80ULL /* = 128 */
2436 #define MDS_ATTR_MTIME_SET 0x100ULL /* = 256 */
2437 #define MDS_ATTR_FORCE 0x200ULL /* = 512, Not a change, but a change it */
2438 #define MDS_ATTR_ATTR_FLAG 0x400ULL /* = 1024 */
2439 #define MDS_ATTR_KILL_SUID 0x800ULL /* = 2048 */
2440 #define MDS_ATTR_KILL_SGID 0x1000ULL /* = 4096 */
2441 #define MDS_ATTR_CTIME_SET 0x2000ULL /* = 8192 */
2442 #define MDS_ATTR_FROM_OPEN 0x4000ULL /* = 16384, called from open path, ie O_TRUNC */
2443 #define MDS_ATTR_BLOCKS 0x8000ULL /* = 32768 */
2446 #define FMODE_READ 00000001
2447 #define FMODE_WRITE 00000002
2450 #define MDS_FMODE_CLOSED 00000000
2451 #define MDS_FMODE_EXEC 00000004
2452 /* IO Epoch is opened on a closed file. */
2453 #define MDS_FMODE_EPOCH 01000000
2454 /* IO Epoch is opened on a file truncate. */
2455 #define MDS_FMODE_TRUNC 02000000
2456 /* Size-on-MDS Attribute Update is pending. */
2457 #define MDS_FMODE_SOM 04000000
2459 #define MDS_OPEN_CREATED 00000010
2460 #define MDS_OPEN_CROSS 00000020
2462 #define MDS_OPEN_CREAT 00000100
2463 #define MDS_OPEN_EXCL 00000200
2464 #define MDS_OPEN_TRUNC 00001000
2465 #define MDS_OPEN_APPEND 00002000
2466 #define MDS_OPEN_SYNC 00010000
2467 #define MDS_OPEN_DIRECTORY 00200000
2469 #define MDS_OPEN_BY_FID 040000000 /* open_by_fid for known object */
2470 #define MDS_OPEN_DELAY_CREATE 0100000000 /* delay initial object create */
2471 #define MDS_OPEN_OWNEROVERRIDE 0200000000 /* NFSD rw-reopen ro file for owner */
2472 #define MDS_OPEN_JOIN_FILE 0400000000 /* open for join file.
2473 * We do not support JOIN FILE
2474 * anymore, reserve this flags
2475 * just for preventing such bit
2478 #define MDS_OPEN_LOCK 04000000000 /* This open requires open lock */
2479 #define MDS_OPEN_HAS_EA 010000000000 /* specify object create pattern */
2480 #define MDS_OPEN_HAS_OBJS 020000000000 /* Just set the EA the obj exist */
2481 #define MDS_OPEN_NORESTORE 0100000000000ULL /* Do not restore file at open */
2482 #define MDS_OPEN_NEWSTRIPE 0200000000000ULL /* New stripe needed (restripe or
2484 #define MDS_OPEN_VOLATILE 0400000000000ULL /* File is volatile = created
2486 #define MDS_OPEN_LEASE 01000000000000ULL /* Open the file and grant lease
2487 * delegation, succeed if it's not
2488 * being opened with conflict mode.
2490 #define MDS_OPEN_RELEASE 02000000000000ULL /* Open the file for HSM release */
2492 /* lustre internal open flags, which should not be set from user space */
2493 #define MDS_OPEN_FL_INTERNAL (MDS_OPEN_HAS_EA | MDS_OPEN_HAS_OBJS | \
2494 MDS_OPEN_OWNEROVERRIDE | MDS_OPEN_LOCK | \
2495 MDS_OPEN_BY_FID | MDS_OPEN_LEASE | \
2498 /* permission for create non-directory file */
2499 #define MAY_CREATE (1 << 7)
2500 /* permission for create directory file */
2501 #define MAY_LINK (1 << 8)
2502 /* permission for delete from the directory */
2503 #define MAY_UNLINK (1 << 9)
2504 /* source's permission for rename */
2505 #define MAY_RENAME_SRC (1 << 10)
2506 /* target's permission for rename */
2507 #define MAY_RENAME_TAR (1 << 11)
2508 /* part (parent's) VTX permission check */
2509 #define MAY_VTX_PART (1 << 12)
2510 /* full VTX permission check */
2511 #define MAY_VTX_FULL (1 << 13)
2512 /* lfs rgetfacl permission check */
2513 #define MAY_RGETFACL (1 << 14)
2516 MDS_CHECK_SPLIT = 1 << 0,
2517 MDS_CROSS_REF = 1 << 1,
2518 MDS_VTX_BYPASS = 1 << 2,
2519 MDS_PERM_BYPASS = 1 << 3,
2521 MDS_QUOTA_IGNORE = 1 << 5,
2522 /* Was MDS_CLOSE_CLEANUP (1 << 6), No more used */
2523 MDS_KEEP_ORPHAN = 1 << 7,
2524 MDS_RECOV_OPEN = 1 << 8,
2525 MDS_DATA_MODIFIED = 1 << 9,
2526 MDS_CREATE_VOLATILE = 1 << 10,
2527 MDS_OWNEROVERRIDE = 1 << 11,
2528 MDS_HSM_RELEASE = 1 << 12,
2529 MDS_RENAME_MIGRATE = 1 << 13,
2532 /* instance of mdt_reint_rec */
2533 struct mdt_rec_create {
2541 __u32 cr_suppgid1_h;
2543 __u32 cr_suppgid2_h;
2544 struct lu_fid cr_fid1;
2545 struct lu_fid cr_fid2;
2546 struct lustre_handle cr_old_handle; /* handle in case of open replay */
2550 __u64 cr_padding_1; /* rr_blocks */
2553 /* use of helpers set/get_mrc_cr_flags() is needed to access
2554 * 64 bits cr_flags [cr_flags_l, cr_flags_h], this is done to
2555 * extend cr_flags size without breaking 1.8 compat */
2556 __u32 cr_flags_l; /* for use with open, low 32 bits */
2557 __u32 cr_flags_h; /* for use with open, high 32 bits */
2558 __u32 cr_umask; /* umask for create */
2559 __u32 cr_padding_4; /* rr_padding_4 */
2562 static inline void set_mrc_cr_flags(struct mdt_rec_create *mrc, __u64 flags)
2564 mrc->cr_flags_l = (__u32)(flags & 0xFFFFFFFFUll);
2565 mrc->cr_flags_h = (__u32)(flags >> 32);
2568 static inline __u64 get_mrc_cr_flags(struct mdt_rec_create *mrc)
2570 return ((__u64)(mrc->cr_flags_l) | ((__u64)mrc->cr_flags_h << 32));
2573 /* instance of mdt_reint_rec */
2574 struct mdt_rec_link {
2582 __u32 lk_suppgid1_h;
2584 __u32 lk_suppgid2_h;
2585 struct lu_fid lk_fid1;
2586 struct lu_fid lk_fid2;
2588 __u64 lk_padding_1; /* rr_atime */
2589 __u64 lk_padding_2; /* rr_ctime */
2590 __u64 lk_padding_3; /* rr_size */
2591 __u64 lk_padding_4; /* rr_blocks */
2593 __u32 lk_padding_5; /* rr_mode */
2594 __u32 lk_padding_6; /* rr_flags */
2595 __u32 lk_padding_7; /* rr_padding_2 */
2596 __u32 lk_padding_8; /* rr_padding_3 */
2597 __u32 lk_padding_9; /* rr_padding_4 */
2600 /* instance of mdt_reint_rec */
2601 struct mdt_rec_unlink {
2609 __u32 ul_suppgid1_h;
2611 __u32 ul_suppgid2_h;
2612 struct lu_fid ul_fid1;
2613 struct lu_fid ul_fid2;
2615 __u64 ul_padding_2; /* rr_atime */
2616 __u64 ul_padding_3; /* rr_ctime */
2617 __u64 ul_padding_4; /* rr_size */
2618 __u64 ul_padding_5; /* rr_blocks */
2621 __u32 ul_padding_6; /* rr_flags */
2622 __u32 ul_padding_7; /* rr_padding_2 */
2623 __u32 ul_padding_8; /* rr_padding_3 */
2624 __u32 ul_padding_9; /* rr_padding_4 */
2627 /* instance of mdt_reint_rec */
2628 struct mdt_rec_rename {
2636 __u32 rn_suppgid1_h;
2638 __u32 rn_suppgid2_h;
2639 struct lu_fid rn_fid1;
2640 struct lu_fid rn_fid2;
2642 __u64 rn_padding_1; /* rr_atime */
2643 __u64 rn_padding_2; /* rr_ctime */
2644 __u64 rn_padding_3; /* rr_size */
2645 __u64 rn_padding_4; /* rr_blocks */
2646 __u32 rn_bias; /* some operation flags */
2647 __u32 rn_mode; /* cross-ref rename has mode */
2648 __u32 rn_padding_5; /* rr_flags */
2649 __u32 rn_padding_6; /* rr_padding_2 */
2650 __u32 rn_padding_7; /* rr_padding_3 */
2651 __u32 rn_padding_8; /* rr_padding_4 */
2654 /* instance of mdt_reint_rec */
2655 struct mdt_rec_setxattr {
2663 __u32 sx_suppgid1_h;
2665 __u32 sx_suppgid2_h;
2666 struct lu_fid sx_fid;
2667 __u64 sx_padding_1; /* These three are rr_fid2 */
2672 __u64 sx_padding_5; /* rr_ctime */
2673 __u64 sx_padding_6; /* rr_size */
2674 __u64 sx_padding_7; /* rr_blocks */
2677 __u32 sx_padding_8; /* rr_flags */
2678 __u32 sx_padding_9; /* rr_padding_2 */
2679 __u32 sx_padding_10; /* rr_padding_3 */
2680 __u32 sx_padding_11; /* rr_padding_4 */
2684 * mdt_rec_reint is the template for all mdt_reint_xxx structures.
2685 * Do NOT change the size of various members, otherwise the value
2686 * will be broken in lustre_swab_mdt_rec_reint().
2688 * If you add new members in other mdt_reint_xxx structres and need to use the
2689 * rr_padding_x fields, then update lustre_swab_mdt_rec_reint() also.
2691 struct mdt_rec_reint {
2699 __u32 rr_suppgid1_h;
2701 __u32 rr_suppgid2_h;
2702 struct lu_fid rr_fid1;
2703 struct lu_fid rr_fid2;
2714 __u32 rr_padding_4; /* also fix lustre_swab_mdt_rec_reint */
2717 extern void lustre_swab_mdt_rec_reint(struct mdt_rec_reint *rr);
2719 /* lmv structures */
2721 __u32 ld_tgt_count; /* how many MDS's */
2722 __u32 ld_active_tgt_count; /* how many active */
2723 __u32 ld_default_stripe_count; /* how many objects are used */
2724 __u32 ld_pattern; /* default hash pattern */
2725 __u64 ld_default_hash_size;
2726 __u64 ld_padding_1; /* also fix lustre_swab_lmv_desc */
2727 __u32 ld_padding_2; /* also fix lustre_swab_lmv_desc */
2728 __u32 ld_qos_maxage; /* in second */
2729 __u32 ld_padding_3; /* also fix lustre_swab_lmv_desc */
2730 __u32 ld_padding_4; /* also fix lustre_swab_lmv_desc */
2731 struct obd_uuid ld_uuid;
2734 extern void lustre_swab_lmv_desc (struct lmv_desc *ld);
2736 /* LMV layout EA, and it will be stored both in master and slave object */
2737 struct lmv_mds_md_v1 {
2739 __u32 lmv_stripe_count;
2740 __u32 lmv_master_mdt_index; /* On master object, it is master
2741 * MDT index, on slave object, it
2742 * is stripe index of the slave obj */
2743 __u32 lmv_hash_type; /* dir stripe policy, i.e. indicate
2744 * which hash function to be used,
2745 * Note: only lower 16 bits is being
2746 * used for now. Higher 16 bits will
2747 * be used to mark the object status,
2748 * for example migrating or dead. */
2749 __u32 lmv_layout_version; /* Used for directory restriping */
2753 char lmv_pool_name[LOV_MAXPOOLNAME + 1]; /* pool name */
2754 struct lu_fid lmv_stripe_fids[0]; /* FIDs for each stripe */
2757 #define LMV_MAGIC_V1 0x0CD20CD0 /* normal stripe lmv magic */
2758 #define LMV_MAGIC LMV_MAGIC_V1
2760 /* #define LMV_USER_MAGIC 0x0CD30CD0 */
2761 #define LMV_MAGIC_STRIPE 0x0CD40CD0 /* magic for dir sub_stripe */
2763 /* Right now only the lower part(0-16bits) of lmv_hash_type is being used,
2764 * and the higher part will be the flag to indicate the status of object,
2765 * for example the object is being migrated. And the hash function
2766 * might be interpreted differently with different flags. */
2767 #define LMV_HASH_TYPE_MASK 0x0000ffff
2769 #define LMV_HASH_FLAG_MIGRATION 0x80000000
2770 #define LMV_HASH_FLAG_DEAD 0x40000000
2771 #define LMV_HASH_FLAG_BAD_TYPE 0x20000000
2773 /* The striped directory has ever lost its master LMV EA, then LFSCK
2774 * re-generated it. This flag is used to indicate such case. It is an
2776 #define LMV_HASH_FLAG_LOST_LMV 0x10000000
2779 * The FNV-1a hash algorithm is as follows:
2780 * hash = FNV_offset_basis
2781 * for each octet_of_data to be hashed
2782 * hash = hash XOR octet_of_data
2783 * hash = hash × FNV_prime
2785 * http://en.wikipedia.org/wiki/Fowler–Noll–Vo_hash_function#FNV-1a_hash
2787 * http://www.isthe.com/chongo/tech/comp/fnv/index.html#FNV-reference-source
2788 * FNV_prime is 2^40 + 2^8 + 0xb3 = 0x100000001b3ULL
2790 #define LUSTRE_FNV_1A_64_PRIME 0x100000001b3ULL
2791 #define LUSTRE_FNV_1A_64_OFFSET_BIAS 0xcbf29ce484222325ULL
2792 static inline __u64 lustre_hash_fnv_1a_64(const void *buf, size_t size)
2794 __u64 hash = LUSTRE_FNV_1A_64_OFFSET_BIAS;
2795 const unsigned char *p = buf;
2798 for (i = 0; i < size; i++) {
2800 hash *= LUSTRE_FNV_1A_64_PRIME;
2808 struct lmv_mds_md_v1 lmv_md_v1;
2809 struct lmv_user_md lmv_user_md;
2812 extern void lustre_swab_lmv_mds_md(union lmv_mds_md *lmm);
2814 static inline int lmv_mds_md_size(int stripe_count, unsigned int lmm_magic)
2816 switch (lmm_magic) {
2818 struct lmv_mds_md_v1 *lmm1;
2820 return sizeof(*lmm1) + stripe_count *
2821 sizeof(lmm1->lmv_stripe_fids[0]);
2828 static inline int lmv_mds_md_stripe_count_get(const union lmv_mds_md *lmm)
2830 switch (le32_to_cpu(lmm->lmv_magic)) {
2832 return le32_to_cpu(lmm->lmv_md_v1.lmv_stripe_count);
2833 case LMV_USER_MAGIC:
2834 return le32_to_cpu(lmm->lmv_user_md.lum_stripe_count);
2840 static inline int lmv_mds_md_stripe_count_set(union lmv_mds_md *lmm,
2841 unsigned int stripe_count)
2843 switch (le32_to_cpu(lmm->lmv_magic)) {
2845 lmm->lmv_md_v1.lmv_stripe_count = cpu_to_le32(stripe_count);
2847 case LMV_USER_MAGIC:
2848 lmm->lmv_user_md.lum_stripe_count = cpu_to_le32(stripe_count);
2860 FLD_FIRST_OPC = FLD_QUERY
2866 SEQ_FIRST_OPC = SEQ_QUERY
2870 SEQ_ALLOC_SUPER = 0,
2882 LFSCK_NOTIFY = 1101,
2885 LFSCK_FIRST_OPC = LFSCK_NOTIFY
2889 * LOV data structures
2892 #define LOV_MAX_UUID_BUFFER_SIZE 8192
2893 /* The size of the buffer the lov/mdc reserves for the
2894 * array of UUIDs returned by the MDS. With the current
2895 * protocol, this will limit the max number of OSTs per LOV */
2897 #define LOV_DESC_MAGIC 0xB0CCDE5C
2898 #define LOV_DESC_QOS_MAXAGE_DEFAULT 5 /* Seconds */
2899 #define LOV_DESC_STRIPE_SIZE_DEFAULT (1 << LNET_MTU_BITS)
2901 /* LOV settings descriptor (should only contain static info) */
2903 __u32 ld_tgt_count; /* how many OBD's */
2904 __u32 ld_active_tgt_count; /* how many active */
2905 __u32 ld_default_stripe_count; /* how many objects are used */
2906 __u32 ld_pattern; /* default PATTERN_RAID0 */
2907 __u64 ld_default_stripe_size; /* in bytes */
2908 __u64 ld_default_stripe_offset; /* in bytes */
2909 __u32 ld_padding_0; /* unused */
2910 __u32 ld_qos_maxage; /* in second */
2911 __u32 ld_padding_1; /* also fix lustre_swab_lov_desc */
2912 __u32 ld_padding_2; /* also fix lustre_swab_lov_desc */
2913 struct obd_uuid ld_uuid;
2916 #define ld_magic ld_active_tgt_count /* for swabbing from llogs */
2918 extern void lustre_swab_lov_desc (struct lov_desc *ld);
2923 /* opcodes -- MUST be distinct from OST/MDS opcodes */
2928 LDLM_BL_CALLBACK = 104,
2929 LDLM_CP_CALLBACK = 105,
2930 LDLM_GL_CALLBACK = 106,
2931 LDLM_SET_INFO = 107,
2934 #define LDLM_FIRST_OPC LDLM_ENQUEUE
2936 #define RES_NAME_SIZE 4
2937 struct ldlm_res_id {
2938 __u64 name[RES_NAME_SIZE];
2941 #define DLDLMRES "["LPX64":"LPX64":"LPX64"]."LPX64i
2942 #define PLDLMRES(res) (res)->lr_name.name[0], (res)->lr_name.name[1], \
2943 (res)->lr_name.name[2], (res)->lr_name.name[3]
2945 extern void lustre_swab_ldlm_res_id (struct ldlm_res_id *id);
2947 static inline bool ldlm_res_eq(const struct ldlm_res_id *res0,
2948 const struct ldlm_res_id *res1)
2950 return memcmp(res0, res1, sizeof(*res0)) == 0;
2967 #define LCK_MODE_NUM 8
2977 #define LDLM_MIN_TYPE LDLM_PLAIN
2979 struct ldlm_extent {
2985 static inline int ldlm_extent_overlap(const struct ldlm_extent *ex1,
2986 const struct ldlm_extent *ex2)
2988 return ex1->start <= ex2->end && ex2->start <= ex1->end;
2991 /* check if @ex1 contains @ex2 */
2992 static inline int ldlm_extent_contain(const struct ldlm_extent *ex1,
2993 const struct ldlm_extent *ex2)
2995 return ex1->start <= ex2->start && ex1->end >= ex2->end;
2998 struct ldlm_inodebits {
3002 struct ldlm_flock_wire {
3010 /* it's important that the fields of the ldlm_extent structure match
3011 * the first fields of the ldlm_flock structure because there is only
3012 * one ldlm_swab routine to process the ldlm_policy_data_t union. if
3013 * this ever changes we will need to swab the union differently based
3014 * on the resource type. */
3017 struct ldlm_extent l_extent;
3018 struct ldlm_flock_wire l_flock;
3019 struct ldlm_inodebits l_inodebits;
3020 } ldlm_wire_policy_data_t;
3022 extern void lustre_swab_ldlm_policy_data (ldlm_wire_policy_data_t *d);
3024 union ldlm_gl_desc {
3025 struct ldlm_gl_lquota_desc lquota_desc;
3028 extern void lustre_swab_gl_desc(union ldlm_gl_desc *);
3030 struct ldlm_intent {
3034 extern void lustre_swab_ldlm_intent (struct ldlm_intent *i);
3036 struct ldlm_resource_desc {
3037 ldlm_type_t lr_type;
3038 __u32 lr_padding; /* also fix lustre_swab_ldlm_resource_desc */
3039 struct ldlm_res_id lr_name;
3042 extern void lustre_swab_ldlm_resource_desc (struct ldlm_resource_desc *r);
3044 struct ldlm_lock_desc {
3045 struct ldlm_resource_desc l_resource;
3046 ldlm_mode_t l_req_mode;
3047 ldlm_mode_t l_granted_mode;
3048 ldlm_wire_policy_data_t l_policy_data;
3051 extern void lustre_swab_ldlm_lock_desc (struct ldlm_lock_desc *l);
3053 #define LDLM_LOCKREQ_HANDLES 2
3054 #define LDLM_ENQUEUE_CANCEL_OFF 1
3056 struct ldlm_request {
3059 struct ldlm_lock_desc lock_desc;
3060 struct lustre_handle lock_handle[LDLM_LOCKREQ_HANDLES];
3063 extern void lustre_swab_ldlm_request (struct ldlm_request *rq);
3065 /* If LDLM_ENQUEUE, 1 slot is already occupied, 1 is available.
3066 * Otherwise, 2 are available. */
3067 #define ldlm_request_bufsize(count,type) \
3069 int _avail = LDLM_LOCKREQ_HANDLES; \
3070 _avail -= (type == LDLM_ENQUEUE ? LDLM_ENQUEUE_CANCEL_OFF : 0); \
3071 sizeof(struct ldlm_request) + \
3072 (count > _avail ? count - _avail : 0) * \
3073 sizeof(struct lustre_handle); \
3078 __u32 lock_padding; /* also fix lustre_swab_ldlm_reply */
3079 struct ldlm_lock_desc lock_desc;
3080 struct lustre_handle lock_handle;
3081 __u64 lock_policy_res1;
3082 __u64 lock_policy_res2;
3085 extern void lustre_swab_ldlm_reply (struct ldlm_reply *r);
3087 #define ldlm_flags_to_wire(flags) ((__u32)(flags))
3088 #define ldlm_flags_from_wire(flags) ((__u64)(flags))
3091 * Opcodes for mountconf (mgs and mgc)
3096 MGS_EXCEPTION, /* node died, etc. */
3097 MGS_TARGET_REG, /* whenever target starts up */
3103 #define MGS_FIRST_OPC MGS_CONNECT
3105 #define MGS_PARAM_MAXLEN 1024
3106 #define KEY_SET_INFO "set_info"
3108 struct mgs_send_param {
3109 char mgs_param[MGS_PARAM_MAXLEN];
3112 /* We pass this info to the MGS so it can write config logs */
3113 #define MTI_NAME_MAXLEN 64
3114 #define MTI_PARAM_MAXLEN 4096
3115 #define MTI_NIDS_MAX 32
3116 struct mgs_target_info {
3117 __u32 mti_lustre_ver;
3118 __u32 mti_stripe_index;
3119 __u32 mti_config_ver;
3121 __u32 mti_nid_count;
3122 __u32 mti_instance; /* Running instance of target */
3123 char mti_fsname[MTI_NAME_MAXLEN];
3124 char mti_svname[MTI_NAME_MAXLEN];
3125 char mti_uuid[sizeof(struct obd_uuid)];
3126 __u64 mti_nids[MTI_NIDS_MAX]; /* host nids (lnet_nid_t)*/
3127 char mti_params[MTI_PARAM_MAXLEN];
3129 extern void lustre_swab_mgs_target_info(struct mgs_target_info *oinfo);
3131 struct mgs_nidtbl_entry {
3132 __u64 mne_version; /* table version of this entry */
3133 __u32 mne_instance; /* target instance # */
3134 __u32 mne_index; /* target index */
3135 __u32 mne_length; /* length of this entry - by bytes */
3136 __u8 mne_type; /* target type LDD_F_SV_TYPE_OST/MDT */
3137 __u8 mne_nid_type; /* type of nid(mbz). for ipv6. */
3138 __u8 mne_nid_size; /* size of each NID, by bytes */
3139 __u8 mne_nid_count; /* # of NIDs in buffer */
3141 lnet_nid_t nids[0]; /* variable size buffer for NIDs. */
3144 extern void lustre_swab_mgs_nidtbl_entry(struct mgs_nidtbl_entry *oinfo);
3146 struct mgs_config_body {
3147 char mcb_name[MTI_NAME_MAXLEN]; /* logname */
3148 __u64 mcb_offset; /* next index of config log to request */
3149 __u16 mcb_type; /* type of log: CONFIG_T_[CONFIG|RECOVER] */
3151 __u8 mcb_bits; /* bits unit size of config log */
3152 __u32 mcb_units; /* # of units for bulk transfer */
3154 extern void lustre_swab_mgs_config_body(struct mgs_config_body *body);
3156 struct mgs_config_res {
3157 __u64 mcr_offset; /* index of last config log */
3158 __u64 mcr_size; /* size of the log */
3160 extern void lustre_swab_mgs_config_res(struct mgs_config_res *body);
3162 /* Config marker flags (in config log) */
3163 #define CM_START 0x01
3165 #define CM_SKIP 0x04
3166 #define CM_UPGRADE146 0x08
3167 #define CM_EXCLUDE 0x10
3168 #define CM_START_SKIP (CM_START | CM_SKIP)
3171 __u32 cm_step; /* aka config version */
3173 __u32 cm_vers; /* lustre release version number */
3174 __u32 cm_padding; /* 64 bit align */
3175 __s64 cm_createtime; /*when this record was first created */
3176 __s64 cm_canceltime; /*when this record is no longer valid*/
3177 char cm_tgtname[MTI_NAME_MAXLEN];
3178 char cm_comment[MTI_NAME_MAXLEN];
3181 extern void lustre_swab_cfg_marker(struct cfg_marker *marker,
3182 int swab, int size);
3185 * Opcodes for multiple servers.
3195 #define OBD_FIRST_OPC OBD_PING
3198 * llog contexts indices.
3200 * There is compatibility problem with indexes below, they are not
3201 * continuous and must keep their numbers for compatibility needs.
3202 * See LU-5218 for details.
3205 LLOG_CONFIG_ORIG_CTXT = 0,
3206 LLOG_CONFIG_REPL_CTXT = 1,
3207 LLOG_MDS_OST_ORIG_CTXT = 2,
3208 LLOG_MDS_OST_REPL_CTXT = 3, /* kept just to avoid re-assignment */
3209 LLOG_SIZE_ORIG_CTXT = 4,
3210 LLOG_SIZE_REPL_CTXT = 5,
3211 LLOG_TEST_ORIG_CTXT = 8,
3212 LLOG_TEST_REPL_CTXT = 9, /* kept just to avoid re-assignment */
3213 LLOG_CHANGELOG_ORIG_CTXT = 12, /**< changelog generation on mdd */
3214 LLOG_CHANGELOG_REPL_CTXT = 13, /**< changelog access on clients */
3215 /* for multiple changelog consumers */
3216 LLOG_CHANGELOG_USER_ORIG_CTXT = 14,
3217 LLOG_AGENT_ORIG_CTXT = 15, /**< agent requests generation on cdt */
3221 /** Identifier for a single log object */
3223 struct ost_id lgl_oi;
3225 } __attribute__((packed));
3227 /** Records written to the CATALOGS list */
3228 #define CATLIST "CATALOGS"
3230 struct llog_logid lci_logid;
3234 } __attribute__((packed));
3236 /* Log data record types - there is no specific reason that these need to
3237 * be related to the RPC opcodes, but no reason not to (may be handy later?)
3239 #define LLOG_OP_MAGIC 0x10600000
3240 #define LLOG_OP_MASK 0xfff00000
3243 LLOG_PAD_MAGIC = LLOG_OP_MAGIC | 0x00000,
3244 OST_SZ_REC = LLOG_OP_MAGIC | 0x00f00,
3245 /* OST_RAID1_REC = LLOG_OP_MAGIC | 0x01000, never used */
3246 MDS_UNLINK_REC = LLOG_OP_MAGIC | 0x10000 | (MDS_REINT << 8) |
3247 REINT_UNLINK, /* obsolete after 2.5.0 */
3248 MDS_UNLINK64_REC = LLOG_OP_MAGIC | 0x90000 | (MDS_REINT << 8) |
3250 /* MDS_SETATTR_REC = LLOG_OP_MAGIC | 0x12401, obsolete 1.8.0 */
3251 MDS_SETATTR64_REC = LLOG_OP_MAGIC | 0x90000 | (MDS_REINT << 8) |
3253 OBD_CFG_REC = LLOG_OP_MAGIC | 0x20000,
3254 /* PTL_CFG_REC = LLOG_OP_MAGIC | 0x30000, obsolete 1.4.0 */
3255 LLOG_GEN_REC = LLOG_OP_MAGIC | 0x40000,
3256 /* LLOG_JOIN_REC = LLOG_OP_MAGIC | 0x50000, obsolete 1.8.0 */
3257 CHANGELOG_REC = LLOG_OP_MAGIC | 0x60000,
3258 CHANGELOG_USER_REC = LLOG_OP_MAGIC | 0x70000,
3259 HSM_AGENT_REC = LLOG_OP_MAGIC | 0x80000,
3260 LLOG_HDR_MAGIC = LLOG_OP_MAGIC | 0x45539,
3261 LLOG_LOGID_MAGIC = LLOG_OP_MAGIC | 0x4553b,
3264 #define LLOG_REC_HDR_NEEDS_SWABBING(r) \
3265 (((r)->lrh_type & __swab32(LLOG_OP_MASK)) == __swab32(LLOG_OP_MAGIC))
3267 /** Log record header - stored in little endian order.
3268 * Each record must start with this struct, end with a llog_rec_tail,
3269 * and be a multiple of 256 bits in size.
3271 struct llog_rec_hdr {
3278 struct llog_rec_tail {
3283 /* Where data follow just after header */
3284 #define REC_DATA(ptr) \
3285 ((void *)((char *)ptr + sizeof(struct llog_rec_hdr)))
3287 #define REC_DATA_LEN(rec) \
3288 (rec->lrh_len - sizeof(struct llog_rec_hdr) - \
3289 sizeof(struct llog_rec_tail))
3291 static inline void *rec_tail(struct llog_rec_hdr *rec)
3293 return (void *)((char *)rec + rec->lrh_len -
3294 sizeof(struct llog_rec_tail));
3297 struct llog_logid_rec {
3298 struct llog_rec_hdr lid_hdr;
3299 struct llog_logid lid_id;
3303 struct llog_rec_tail lid_tail;
3304 } __attribute__((packed));
3306 struct llog_unlink_rec {
3307 struct llog_rec_hdr lur_hdr;
3311 struct llog_rec_tail lur_tail;
3312 } __attribute__((packed));
3314 struct llog_unlink64_rec {
3315 struct llog_rec_hdr lur_hdr;
3316 struct lu_fid lur_fid;
3317 __u32 lur_count; /* to destroy the lost precreated */
3321 struct llog_rec_tail lur_tail;
3322 } __attribute__((packed));
3324 struct llog_setattr64_rec {
3325 struct llog_rec_hdr lsr_hdr;
3326 struct ost_id lsr_oi;
3332 struct llog_rec_tail lsr_tail;
3333 } __attribute__((packed));
3335 struct llog_size_change_rec {
3336 struct llog_rec_hdr lsc_hdr;
3337 struct ll_fid lsc_fid;
3342 struct llog_rec_tail lsc_tail;
3343 } __attribute__((packed));
3345 #define CHANGELOG_MAGIC 0xca103000
3347 /** \a changelog_rec_type's that can't be masked */
3348 #define CHANGELOG_MINMASK (1 << CL_MARK)
3349 /** bits covering all \a changelog_rec_type's */
3350 #define CHANGELOG_ALLMASK 0XFFFFFFFF
3351 /** default \a changelog_rec_type mask */
3352 #define CHANGELOG_DEFMASK CHANGELOG_ALLMASK & ~(1 << CL_ATIME | 1 << CL_CLOSE)
3354 /* changelog llog name, needed by client replicators */
3355 #define CHANGELOG_CATALOG "changelog_catalog"
3357 struct changelog_setinfo {
3360 } __attribute__((packed));
3362 /** changelog record */
3363 struct llog_changelog_rec {
3364 struct llog_rec_hdr cr_hdr;
3365 struct changelog_rec cr; /**< Variable length field */
3366 struct llog_rec_tail cr_do_not_use; /**< for_sizeof_only */
3367 } __attribute__((packed));
3369 #define CHANGELOG_USER_PREFIX "cl"
3371 struct llog_changelog_user_rec {
3372 struct llog_rec_hdr cur_hdr;
3376 struct llog_rec_tail cur_tail;
3377 } __attribute__((packed));
3379 enum agent_req_status {
3387 static inline const char *agent_req_status2name(enum agent_req_status ars)
3405 static inline bool agent_req_in_final_state(enum agent_req_status ars)
3407 return ((ars == ARS_SUCCEED) || (ars == ARS_FAILED) ||
3408 (ars == ARS_CANCELED));
3411 struct llog_agent_req_rec {
3412 struct llog_rec_hdr arr_hdr; /**< record header */
3413 __u32 arr_status; /**< status of the request */
3415 * agent_req_status */
3416 __u32 arr_archive_id; /**< backend archive number */
3417 __u64 arr_flags; /**< req flags */
3418 __u64 arr_compound_id; /**< compound cookie */
3419 __u64 arr_req_create; /**< req. creation time */
3420 __u64 arr_req_change; /**< req. status change time */
3421 struct hsm_action_item arr_hai; /**< req. to the agent */
3422 struct llog_rec_tail arr_tail; /**< record tail for_sizezof_only */
3423 } __attribute__((packed));
3425 /* Old llog gen for compatibility */
3429 } __attribute__((packed));
3431 struct llog_gen_rec {
3432 struct llog_rec_hdr lgr_hdr;
3433 struct llog_gen lgr_gen;
3437 struct llog_rec_tail lgr_tail;
3440 /* On-disk header structure of each log object, stored in little endian order */
3441 #define LLOG_CHUNK_SIZE 8192
3442 #define LLOG_HEADER_SIZE (96)
3443 #define LLOG_BITMAP_BYTES (LLOG_CHUNK_SIZE - LLOG_HEADER_SIZE)
3445 #define LLOG_MIN_REC_SIZE (24) /* round(llog_rec_hdr + llog_rec_tail) */
3447 /* flags for the logs */
3449 LLOG_F_ZAP_WHEN_EMPTY = 0x1,
3450 LLOG_F_IS_CAT = 0x2,
3451 LLOG_F_IS_PLAIN = 0x4,
3452 LLOG_F_EXT_JOBID = 0x8,
3454 LLOG_F_EXT_MASK = LLOG_F_EXT_JOBID,
3457 struct llog_log_hdr {
3458 struct llog_rec_hdr llh_hdr;
3459 __s64 llh_timestamp;
3461 __u32 llh_bitmap_offset;
3465 /* for a catalog the first plain slot is next to it */
3466 struct obd_uuid llh_tgtuuid;
3467 __u32 llh_reserved[LLOG_HEADER_SIZE/sizeof(__u32) - 23];
3468 __u32 llh_bitmap[LLOG_BITMAP_BYTES/sizeof(__u32)];
3469 struct llog_rec_tail llh_tail;
3470 } __attribute__((packed));
3472 #define LLOG_BITMAP_SIZE(llh) (__u32)((llh->llh_hdr.lrh_len - \
3473 llh->llh_bitmap_offset - \
3474 sizeof(llh->llh_tail)) * 8)
3476 /** log cookies are used to reference a specific log file and a record therein */
3477 struct llog_cookie {
3478 struct llog_logid lgc_lgl;
3482 } __attribute__((packed));
3484 /** llog protocol */
3485 enum llogd_rpc_ops {
3486 LLOG_ORIGIN_HANDLE_CREATE = 501,
3487 LLOG_ORIGIN_HANDLE_NEXT_BLOCK = 502,
3488 LLOG_ORIGIN_HANDLE_READ_HEADER = 503,
3489 LLOG_ORIGIN_HANDLE_WRITE_REC = 504,
3490 LLOG_ORIGIN_HANDLE_CLOSE = 505,
3491 LLOG_ORIGIN_CONNECT = 506,
3492 LLOG_CATINFO = 507, /* deprecated */
3493 LLOG_ORIGIN_HANDLE_PREV_BLOCK = 508,
3494 LLOG_ORIGIN_HANDLE_DESTROY = 509, /* for destroy llog object*/
3496 LLOG_FIRST_OPC = LLOG_ORIGIN_HANDLE_CREATE
3500 struct llog_logid lgd_logid;
3502 __u32 lgd_llh_flags;
3504 __u32 lgd_saved_index;
3506 __u64 lgd_cur_offset;
3507 } __attribute__((packed));
3509 struct llogd_conn_body {
3510 struct llog_gen lgdc_gen;
3511 struct llog_logid lgdc_logid;
3512 __u32 lgdc_ctxt_idx;
3513 } __attribute__((packed));
3515 /* Note: 64-bit types are 64-bit aligned in structure */
3517 __u64 o_valid; /* hot fields in this obdo */
3520 __u64 o_size; /* o_size-o_blocks == ost_lvb */
3524 __u64 o_blocks; /* brw: cli sent cached bytes */
3527 /* 32-bit fields start here: keep an even number of them via padding */
3528 __u32 o_blksize; /* optimal IO blocksize */
3529 __u32 o_mode; /* brw: cli sent cache remain */
3533 __u32 o_nlink; /* brw: checksum */
3535 __u32 o_misc; /* brw: o_dropped */
3537 __u64 o_ioepoch; /* epoch in ost writes */
3538 __u32 o_stripe_idx; /* holds stripe idx */
3540 struct lustre_handle o_handle; /* brw: lock handle to prolong
3542 struct llog_cookie o_lcookie; /* destroy: unlink cookie from
3547 __u64 o_data_version; /* getattr: sum of iversion for
3549 * brw: grant space consumed on
3550 * the client for the write */
3556 #define o_dirty o_blocks
3557 #define o_undirty o_mode
3558 #define o_dropped o_misc
3559 #define o_cksum o_nlink
3560 #define o_grant_used o_data_version
3562 struct lfsck_request {
3575 __u16 lr_async_windows;
3577 struct lu_fid lr_fid;
3578 struct lu_fid lr_fid2;
3579 struct lu_fid lr_fid3;
3584 void lustre_swab_lfsck_request(struct lfsck_request *lr);
3586 struct lfsck_reply {
3592 void lustre_swab_lfsck_reply(struct lfsck_reply *lr);
3595 LE_LASTID_REBUILDING = 1,
3596 LE_LASTID_REBUILT = 2,
3602 LE_FID_ACCESSED = 8,
3604 LE_CONDITIONAL_DESTROY = 10,
3605 LE_PAIRS_VERIFY = 11,
3606 LE_SKIP_NLINK_DECLARE = 13,
3608 LE_SET_LMV_MASTER = 15,
3609 LE_SET_LMV_SLAVE = 16,
3612 enum lfsck_event_flags {
3613 LEF_TO_OST = 0x00000001,
3614 LEF_FROM_OST = 0x00000002,
3615 LEF_SET_LMV_HASH = 0x00000004,
3616 LEF_SET_LMV_ALL = 0x00000008,
3617 LEF_RECHECK_NAME_HASH = 0x00000010,
3620 static inline void lustre_set_wire_obdo(const struct obd_connect_data *ocd,
3622 const struct obdo *lobdo)
3625 wobdo->o_flags &= ~OBD_FL_LOCAL_MASK;
3629 if (unlikely(!(ocd->ocd_connect_flags & OBD_CONNECT_FID)) &&
3630 fid_seq_is_echo(ostid_seq(&lobdo->o_oi))) {
3631 /* Currently OBD_FL_OSTID will only be used when 2.4 echo
3632 * client communicate with pre-2.4 server */
3633 wobdo->o_oi.oi.oi_id = fid_oid(&lobdo->o_oi.oi_fid);
3634 wobdo->o_oi.oi.oi_seq = fid_seq(&lobdo->o_oi.oi_fid);
3638 static inline void lustre_get_wire_obdo(const struct obd_connect_data *ocd,
3640 const struct obdo *wobdo)
3642 __u32 local_flags = 0;
3644 if (lobdo->o_valid & OBD_MD_FLFLAGS)
3645 local_flags = lobdo->o_flags & OBD_FL_LOCAL_MASK;
3648 if (local_flags != 0) {
3649 lobdo->o_valid |= OBD_MD_FLFLAGS;
3650 lobdo->o_flags &= ~OBD_FL_LOCAL_MASK;
3651 lobdo->o_flags |= local_flags;
3656 if (unlikely(!(ocd->ocd_connect_flags & OBD_CONNECT_FID)) &&
3657 fid_seq_is_echo(wobdo->o_oi.oi.oi_seq)) {
3659 lobdo->o_oi.oi_fid.f_seq = wobdo->o_oi.oi.oi_seq;
3660 lobdo->o_oi.oi_fid.f_oid = wobdo->o_oi.oi.oi_id;
3661 lobdo->o_oi.oi_fid.f_ver = 0;
3665 extern void lustre_swab_obdo (struct obdo *o);
3667 /* request structure for OST's */
3672 /* Key for FIEMAP to be used in get_info calls */
3673 struct ll_fiemap_info_key {
3676 struct ll_user_fiemap fiemap;
3679 extern void lustre_swab_ost_body (struct ost_body *b);
3680 extern void lustre_swab_ost_last_id(__u64 *id);
3681 extern void lustre_swab_fiemap(struct ll_user_fiemap *fiemap);
3683 extern void lustre_swab_lov_user_md_v1(struct lov_user_md_v1 *lum);
3684 extern void lustre_swab_lov_user_md_v3(struct lov_user_md_v3 *lum);
3685 extern void lustre_swab_lov_user_md_objects(struct lov_user_ost_data *lod,
3687 extern void lustre_swab_lov_mds_md(struct lov_mds_md *lmm);
3688 void lustre_print_user_md(unsigned int level, struct lov_user_md *lum,
3692 extern void lustre_swab_llogd_body (struct llogd_body *d);
3693 extern void lustre_swab_llog_hdr (struct llog_log_hdr *h);
3694 extern void lustre_swab_llogd_conn_body (struct llogd_conn_body *d);
3695 extern void lustre_swab_llog_rec(struct llog_rec_hdr *rec);
3696 extern void lustre_swab_llog_id(struct llog_logid *lid);
3699 extern void lustre_swab_lustre_cfg(struct lustre_cfg *lcfg);
3701 /* Functions for dumping PTLRPC fields */
3702 void dump_rniobuf(struct niobuf_remote *rnb);
3703 void dump_ioo(struct obd_ioobj *nb);
3704 void dump_obdo(struct obdo *oa);
3705 void dump_ost_body(struct ost_body *ob);
3706 void dump_rcs(__u32 *rc);
3708 #define IDX_INFO_MAGIC 0x3D37CC37
3710 /* Index file transfer through the network. The server serializes the index into
3711 * a byte stream which is sent to the client via a bulk transfer */
3715 /* reply: see idx_info_flags below */
3718 /* request & reply: number of lu_idxpage (to be) transferred */
3722 /* request: requested attributes passed down to the iterator API */
3725 /* request & reply: index file identifier (FID) */
3726 struct lu_fid ii_fid;
3728 /* reply: version of the index file before starting to walk the index.
3729 * Please note that the version can be modified at any time during the
3733 /* request: hash to start with:
3734 * reply: hash of the first entry of the first lu_idxpage and hash
3735 * of the entry to read next if any */
3736 __u64 ii_hash_start;
3739 /* reply: size of keys in lu_idxpages, minimal one if II_FL_VARKEY is
3743 /* reply: size of records in lu_idxpages, minimal one if II_FL_VARREC
3751 extern void lustre_swab_idx_info(struct idx_info *ii);
3753 #define II_END_OFF MDS_DIR_END_OFF /* all entries have been read */
3755 /* List of flags used in idx_info::ii_flags */
3756 enum idx_info_flags {
3757 II_FL_NOHASH = 1 << 0, /* client doesn't care about hash value */
3758 II_FL_VARKEY = 1 << 1, /* keys can be of variable size */
3759 II_FL_VARREC = 1 << 2, /* records can be of variable size */
3760 II_FL_NONUNQ = 1 << 3, /* index supports non-unique keys */
3761 II_FL_NOKEY = 1 << 4, /* client doesn't care about key */
3764 #define LIP_MAGIC 0x8A6D6B6C
3766 /* 4KB (= LU_PAGE_SIZE) container gathering key/record pairs */
3768 /* 16-byte header */
3771 __u16 lip_nr; /* number of entries in the container */
3772 __u64 lip_pad0; /* additional padding for future use */
3774 /* key/record pairs are stored in the remaining 4080 bytes.
3775 * depending upon the flags in idx_info::ii_flags, each key/record
3776 * pair might be preceded by:
3778 * - the key size (II_FL_VARKEY is set)
3779 * - the record size (II_FL_VARREC is set)
3781 * For the time being, we only support fixed-size key & record. */
3782 char lip_entries[0];
3784 extern void lustre_swab_lip_header(struct lu_idxpage *lip);
3786 #define LIP_HDR_SIZE (offsetof(struct lu_idxpage, lip_entries))
3788 /* Gather all possible type associated with a 4KB container */
3790 struct lu_dirpage lp_dir; /* for MDS_READPAGE */
3791 struct lu_idxpage lp_idx; /* for OBD_IDX_READ */
3792 char lp_array[LU_PAGE_SIZE];
3795 /* security opcodes */
3798 SEC_CTX_INIT_CONT = 802,
3801 SEC_FIRST_OPC = SEC_CTX_INIT
3805 * capa related definitions
3807 #define CAPA_HMAC_MAX_LEN 64
3808 #define CAPA_HMAC_KEY_MAX_LEN 56
3810 /* NB take care when changing the sequence of elements this struct,
3811 * because the offset info is used in find_capa() */
3812 struct lustre_capa {
3813 struct lu_fid lc_fid; /** fid */
3814 __u64 lc_opc; /** operations allowed */
3815 __u64 lc_uid; /** file owner */
3816 __u64 lc_gid; /** file group */
3817 __u32 lc_flags; /** HMAC algorithm & flags */
3818 __u32 lc_keyid; /** key# used for the capability */
3819 __u32 lc_timeout; /** capa timeout value (sec) */
3820 __u32 lc_expiry; /** expiry time (sec) */
3821 __u8 lc_hmac[CAPA_HMAC_MAX_LEN]; /** HMAC */
3822 } __attribute__((packed));
3824 extern void lustre_swab_lustre_capa(struct lustre_capa *c);
3826 /** lustre_capa::lc_opc */
3828 CAPA_OPC_BODY_WRITE = 1<<0, /**< write object data */
3829 CAPA_OPC_BODY_READ = 1<<1, /**< read object data */
3830 CAPA_OPC_INDEX_LOOKUP = 1<<2, /**< lookup object fid */
3831 CAPA_OPC_INDEX_INSERT = 1<<3, /**< insert object fid */
3832 CAPA_OPC_INDEX_DELETE = 1<<4, /**< delete object fid */
3833 CAPA_OPC_OSS_WRITE = 1<<5, /**< write oss object data */
3834 CAPA_OPC_OSS_READ = 1<<6, /**< read oss object data */
3835 CAPA_OPC_OSS_TRUNC = 1<<7, /**< truncate oss object */
3836 CAPA_OPC_OSS_DESTROY = 1<<8, /**< destroy oss object */
3837 CAPA_OPC_META_WRITE = 1<<9, /**< write object meta data */
3838 CAPA_OPC_META_READ = 1<<10, /**< read object meta data */
3841 #define CAPA_OPC_OSS_RW (CAPA_OPC_OSS_READ | CAPA_OPC_OSS_WRITE)
3842 #define CAPA_OPC_MDS_ONLY \
3843 (CAPA_OPC_BODY_WRITE | CAPA_OPC_BODY_READ | CAPA_OPC_INDEX_LOOKUP | \
3844 CAPA_OPC_INDEX_INSERT | CAPA_OPC_INDEX_DELETE)
3845 #define CAPA_OPC_OSS_ONLY \
3846 (CAPA_OPC_OSS_WRITE | CAPA_OPC_OSS_READ | CAPA_OPC_OSS_TRUNC | \
3847 CAPA_OPC_OSS_DESTROY)
3848 #define CAPA_OPC_MDS_DEFAULT ~CAPA_OPC_OSS_ONLY
3849 #define CAPA_OPC_OSS_DEFAULT ~(CAPA_OPC_MDS_ONLY | CAPA_OPC_OSS_ONLY)
3851 /* MDS capability covers object capability for operations of body r/w
3852 * (dir readpage/sendpage), index lookup/insert/delete and meta data r/w,
3853 * while OSS capability only covers object capability for operations of
3854 * oss data(file content) r/w/truncate.
3856 static inline int capa_for_mds(struct lustre_capa *c)
3858 return (c->lc_opc & CAPA_OPC_INDEX_LOOKUP) != 0;
3861 static inline int capa_for_oss(struct lustre_capa *c)
3863 return (c->lc_opc & CAPA_OPC_INDEX_LOOKUP) == 0;
3866 static inline bool lovea_slot_is_dummy(const struct lov_ost_data_v1 *obj)
3868 /* zero area does not care about the bytes-order. */
3869 if (obj->l_ost_oi.oi.oi_id == 0 && obj->l_ost_oi.oi.oi_seq == 0 &&
3870 obj->l_ost_idx == 0 && obj->l_ost_gen == 0)
3876 /* lustre_capa::lc_hmac_alg */
3878 CAPA_HMAC_ALG_SHA1 = 1, /**< sha1 algorithm */
3882 #define CAPA_FL_MASK 0x00ffffff
3883 #define CAPA_HMAC_ALG_MASK 0xff000000
3885 struct lustre_capa_key {
3886 __u64 lk_seq; /**< mds# */
3887 __u32 lk_keyid; /**< key# */
3889 __u8 lk_key[CAPA_HMAC_KEY_MAX_LEN]; /**< key */
3890 } __attribute__((packed));
3892 extern void lustre_swab_lustre_capa_key(struct lustre_capa_key *k);
3894 /** The link ea holds 1 \a link_ea_entry for each hardlink */
3895 #define LINK_EA_MAGIC 0x11EAF1DFUL
3896 struct link_ea_header {
3899 __u64 leh_len; /* total size */
3905 /** Hardlink data is name and parent fid.
3906 * Stored in this crazy struct for maximum packing and endian-neutrality
3908 struct link_ea_entry {
3909 /** __u16 stored big-endian, unaligned */
3910 unsigned char lee_reclen[2];
3911 unsigned char lee_parent_fid[sizeof(struct lu_fid)];
3913 }__attribute__((packed));
3915 /** fid2path request/reply structure */
3916 struct getinfo_fid2path {
3917 struct lu_fid gf_fid;
3922 } __attribute__((packed));
3924 void lustre_swab_fid2path (struct getinfo_fid2path *gf);
3926 /** path2parent request/reply structures */
3928 struct lu_fid gp_fid; /**< parent FID */
3929 __u32 gp_linkno; /**< hardlink number */
3930 __u32 gp_name_size; /**< size of the name field */
3931 char gp_name[0]; /**< zero-terminated link name */
3932 } __attribute__((packed));
3935 LAYOUT_INTENT_ACCESS = 0,
3936 LAYOUT_INTENT_READ = 1,
3937 LAYOUT_INTENT_WRITE = 2,
3938 LAYOUT_INTENT_GLIMPSE = 3,
3939 LAYOUT_INTENT_TRUNC = 4,
3940 LAYOUT_INTENT_RELEASE = 5,
3941 LAYOUT_INTENT_RESTORE = 6
3944 /* enqueue layout lock with intent */
3945 struct layout_intent {
3946 __u32 li_opc; /* intent operation for enqueue, read, write etc */
3952 void lustre_swab_layout_intent(struct layout_intent *li);
3955 * On the wire version of hsm_progress structure.
3957 * Contains the userspace hsm_progress and some internal fields.
3959 struct hsm_progress_kernel {
3960 /* Field taken from struct hsm_progress */
3963 struct hsm_extent hpk_extent;
3965 __u16 hpk_errval; /* positive val */
3967 /* Additional fields */
3968 __u64 hpk_data_version;
3970 } __attribute__((packed));
3972 extern void lustre_swab_hsm_user_state(struct hsm_user_state *hus);
3973 extern void lustre_swab_hsm_current_action(struct hsm_current_action *action);
3974 extern void lustre_swab_hsm_progress_kernel(struct hsm_progress_kernel *hpk);
3975 extern void lustre_swab_hsm_user_state(struct hsm_user_state *hus);
3976 extern void lustre_swab_hsm_user_item(struct hsm_user_item *hui);
3977 extern void lustre_swab_hsm_request(struct hsm_request *hr);
3980 * OUT_UPDATE RPC Format
3982 * During the cross-ref operation, the Master MDT, which the client send the
3983 * request to, will disassembly the operation into object updates, then OSP
3984 * will send these updates to the remote MDT to be executed.
3986 * An UPDATE_OBJ RPC does a list of updates. Each update belongs to an
3987 * operation and does a type of modification to an object.
3995 * update (ub_count-th)
3997 * ub_count must be less than or equal to UPDATE_PER_RPC_MAX.
4002 * rc [+ buffers] (1st)
4003 * rc [+ buffers] (2st)
4005 * rc [+ buffers] (nr_count-th)
4007 * ur_count must be less than or equal to UPDATE_PER_RPC_MAX and should usually
4008 * be equal to ub_count.
4012 * Type of each update
4023 OUT_INDEX_LOOKUP = 9,
4024 OUT_INDEX_INSERT = 10,
4025 OUT_INDEX_DELETE = 11,
4032 UPDATE_FL_OST = 0x00000001, /* op from OST (not MDT) */
4033 UPDATE_FL_SYNC = 0x00000002, /* commit before replying */
4034 UPDATE_FL_COMMITTED = 0x00000004, /* op committed globally */
4035 UPDATE_FL_NOLOG = 0x00000008 /* for idempotent updates */
4038 struct object_update_param {
4039 __u16 oup_len; /* length of this parameter */
4045 static inline size_t
4046 object_update_param_size(const struct object_update_param *param)
4048 return cfs_size_round(sizeof(*param) + param->oup_len);
4052 struct object_update {
4053 __u16 ou_type; /* enum update_type */
4054 __u16 ou_params_count; /* update parameters count */
4055 __u32 ou_master_index; /* master MDT/OST index */
4056 __u32 ou_flags; /* enum update_flag */
4057 __u32 ou_padding1; /* padding 1 */
4058 __u64 ou_batchid; /* op transno on master */
4059 struct lu_fid ou_fid; /* object to be updated */
4060 struct object_update_param ou_params[0]; /* update params */
4063 #define UPDATE_REQUEST_MAGIC_V1 0xBDDE0001
4064 #define UPDATE_REQUEST_MAGIC_V2 0xBDDE0002
4065 #define UPDATE_REQUEST_MAGIC UPDATE_REQUEST_MAGIC_V2
4066 /* Hold object_updates sending to the remote OUT in single RPC */
4067 struct object_update_request {
4069 __u16 ourq_count; /* number of ourq_updates[] */
4071 struct object_update ourq_updates[0];
4074 void lustre_swab_object_update(struct object_update *ou);
4075 void lustre_swab_object_update_request(struct object_update_request *our);
4077 static inline size_t
4078 object_update_size(const struct object_update *update)
4080 const struct object_update_param *param;
4084 size = offsetof(struct object_update, ou_params[0]);
4085 for (i = 0; i < update->ou_params_count; i++) {
4086 param = (struct object_update_param *)((char *)update + size);
4087 size += object_update_param_size(param);
4093 static inline struct object_update *
4094 object_update_request_get(const struct object_update_request *our,
4095 unsigned int index, size_t *size)
4100 if (index >= our->ourq_count)
4103 ptr = (void *)&our->ourq_updates[0];
4104 for (i = 0; i < index; i++)
4105 ptr += object_update_size(ptr);
4108 *size = object_update_size(ptr);
4114 /* the result of object update */
4115 struct object_update_result {
4122 #define UPDATE_REPLY_MAGIC_V1 0x00BD0001
4123 #define UPDATE_REPLY_MAGIC_V2 0x00BD0002
4124 #define UPDATE_REPLY_MAGIC UPDATE_REPLY_MAGIC_V2
4125 /* Hold object_update_results being replied from the remote OUT. */
4126 struct object_update_reply {
4133 void lustre_swab_object_update_result(struct object_update_result *our);
4134 void lustre_swab_object_update_reply(struct object_update_reply *our);
4136 static inline struct object_update_result *
4137 object_update_result_get(const struct object_update_reply *reply,
4138 unsigned int index, size_t *size)
4140 __u16 count = reply->ourp_count;
4147 ptr = (char *)reply +
4148 cfs_size_round(offsetof(struct object_update_reply,
4150 for (i = 0; i < index; i++) {
4151 if (reply->ourp_lens[i] == 0)
4154 ptr += cfs_size_round(reply->ourp_lens[i]);
4158 *size = reply->ourp_lens[index];
4163 /** layout swap request structure
4164 * fid1 and fid2 are in mdt_body
4166 struct mdc_swap_layouts {
4170 void lustre_swab_swap_layouts(struct mdc_swap_layouts *msl);
4173 struct lustre_handle cd_handle;
4174 struct lu_fid cd_fid;
4175 __u64 cd_data_version;
4176 __u64 cd_reserved[8];
4179 void lustre_swab_close_data(struct close_data *data);