4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2011, 2016, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
32 * lustre/include/lustre/lustre_idl.h
34 * Lustre wire protocol definitions.
37 /** \defgroup lustreidl lustreidl
39 * Lustre wire protocol definitions.
41 * ALL structs passing over the wire should be declared here. Structs
42 * that are used in interfaces with userspace should go in lustre_user.h.
44 * All structs being declared here should be built from simple fixed-size
45 * types (__u8, __u16, __u32, __u64) or be built from other types or
46 * structs also declared in this file. Similarly, all flags and magic
47 * values in those structs should also be declared here. This ensures
48 * that the Lustre wire protocol is not influenced by external dependencies.
50 * The only other acceptable items in this file are VERY SIMPLE accessor
51 * functions to avoid callers grubbing inside the structures. Nothing that
52 * depends on external functions or definitions should be in here.
54 * Structs must be properly aligned to put 64-bit values on an 8-byte
55 * boundary. Any structs being added here must also be added to
56 * utils/wirecheck.c and "make newwiretest" run to regenerate the
57 * utils/wiretest.c sources. This allows us to verify that wire structs
58 * have the proper alignment/size on all architectures.
60 * DO NOT CHANGE any of the structs, flags, values declared here and used
61 * in released Lustre versions. Some structs may have padding fields that
62 * can be used. Some structs might allow addition at the end (verify this
63 * in the code to ensure that new/old clients that see this larger struct
64 * do not fail, otherwise you need to implement protocol compatibility).
69 #ifndef _LUSTRE_IDL_H_
70 #define _LUSTRE_IDL_H_
72 #include <asm/byteorder.h>
73 #include <linux/types.h>
75 #include <lnet/types.h>
76 #include <lustre/lustre_user.h> /* Defn's shared with user-space. */
77 #include <lustre_ver.h>
82 /* FOO_REQUEST_PORTAL is for incoming requests on the FOO
83 * FOO_REPLY_PORTAL is for incoming replies on the FOO
84 * FOO_BULK_PORTAL is for incoming bulk on the FOO
87 #define CONNMGR_REQUEST_PORTAL 1
88 #define CONNMGR_REPLY_PORTAL 2
89 //#define OSC_REQUEST_PORTAL 3
90 #define OSC_REPLY_PORTAL 4
91 //#define OSC_BULK_PORTAL 5
92 #define OST_IO_PORTAL 6
93 #define OST_CREATE_PORTAL 7
94 #define OST_BULK_PORTAL 8
95 //#define MDC_REQUEST_PORTAL 9
96 #define MDC_REPLY_PORTAL 10
97 //#define MDC_BULK_PORTAL 11
98 #define MDS_REQUEST_PORTAL 12
99 //#define MDS_REPLY_PORTAL 13
100 #define MDS_BULK_PORTAL 14
101 #define LDLM_CB_REQUEST_PORTAL 15
102 #define LDLM_CB_REPLY_PORTAL 16
103 #define LDLM_CANCEL_REQUEST_PORTAL 17
104 #define LDLM_CANCEL_REPLY_PORTAL 18
105 //#define PTLBD_REQUEST_PORTAL 19
106 //#define PTLBD_REPLY_PORTAL 20
107 //#define PTLBD_BULK_PORTAL 21
108 #define MDS_SETATTR_PORTAL 22
109 #define MDS_READPAGE_PORTAL 23
110 #define OUT_PORTAL 24
111 #define MGC_REPLY_PORTAL 25
112 #define MGS_REQUEST_PORTAL 26
113 #define MGS_REPLY_PORTAL 27
114 #define OST_REQUEST_PORTAL 28
115 #define FLD_REQUEST_PORTAL 29
116 #define SEQ_METADATA_PORTAL 30
117 #define SEQ_DATA_PORTAL 31
118 #define SEQ_CONTROLLER_PORTAL 32
119 #define MGS_BULK_PORTAL 33
121 /* Portal 63 is reserved for the Cray Inc DVS - nic@cray.com, roe@cray.com, n8851@cray.com */
124 #define PTL_RPC_MSG_REQUEST 4711
125 #define PTL_RPC_MSG_ERR 4712
126 #define PTL_RPC_MSG_REPLY 4713
128 /* DON'T use swabbed values of MAGIC as magic! */
129 #define LUSTRE_MSG_MAGIC_V2 0x0BD00BD3
130 #define LUSTRE_MSG_MAGIC_V2_SWABBED 0xD30BD00B
132 #define LUSTRE_MSG_MAGIC LUSTRE_MSG_MAGIC_V2
134 #define PTLRPC_MSG_VERSION 0x00000003
135 #define LUSTRE_VERSION_MASK 0xffff0000
136 #define LUSTRE_OBD_VERSION 0x00010000
137 #define LUSTRE_MDS_VERSION 0x00020000
138 #define LUSTRE_OST_VERSION 0x00030000
139 #define LUSTRE_DLM_VERSION 0x00040000
140 #define LUSTRE_LOG_VERSION 0x00050000
141 #define LUSTRE_MGS_VERSION 0x00060000
144 * Describes a range of sequence, lsr_start is included but lsr_end is
146 * Same structure is used in fld module where lsr_index field holds mdt id
149 struct lu_seq_range {
156 struct lu_seq_range_array {
159 struct lu_seq_range lsra_lsr[0];
162 #define LU_SEQ_RANGE_MDT 0x0
163 #define LU_SEQ_RANGE_OST 0x1
164 #define LU_SEQ_RANGE_ANY 0x3
166 #define LU_SEQ_RANGE_MASK 0x3
168 /** \defgroup lu_fid lu_fid
172 * Flags for lustre_mdt_attrs::lma_compat and lustre_mdt_attrs::lma_incompat.
173 * Deprecated since HSM and SOM attributes are now stored in separate on-disk
177 LMAC_HSM = 0x00000001,
178 /* LMAC_SOM = 0x00000002, obsolete since 2.8.0 */
179 LMAC_NOT_IN_OI = 0x00000004, /* the object does NOT need OI mapping */
180 LMAC_FID_ON_OST = 0x00000008, /* For OST-object, its OI mapping is
181 * under /O/<seq>/d<x>. */
185 * Masks for all features that should be supported by a Lustre version to
186 * access a specific file.
187 * This information is stored in lustre_mdt_attrs::lma_incompat.
190 LMAI_RELEASED = 0x00000001, /* file is released */
191 LMAI_AGENT = 0x00000002, /* agent inode */
192 LMAI_REMOTE_PARENT = 0x00000004, /* the parent of the object
193 is on the remote MDT */
194 LMAI_STRIPED = 0x00000008, /* striped directory inode */
195 LMAI_ORPHAN = 0x00000010, /* inode is orphan */
196 LMA_INCOMPAT_SUPP = (LMAI_AGENT | LMAI_REMOTE_PARENT | \
197 LMAI_STRIPED | LMAI_ORPHAN)
200 extern void lustre_lma_swab(struct lustre_mdt_attrs *lma);
201 extern void lustre_lma_init(struct lustre_mdt_attrs *lma,
202 const struct lu_fid *fid,
203 __u32 compat, __u32 incompat);
205 /* copytool uses a 32b bitmask field to encode archive-Ids during register
207 * archive num = 0 => all
208 * archive num from 1 to 32
210 #define LL_HSM_MAX_ARCHIVE (sizeof(__u32) * 8)
213 * HSM on-disk attributes stored in a separate xattr.
216 /** Bitfield for supported data in this structure. For future use. */
219 /** HSM flags, see hsm_flags enum below */
221 /** backend archive id associated with the file */
223 /** version associated with the last archiving, if any */
226 extern void lustre_hsm_swab(struct hsm_attrs *attrs);
232 /** LASTID file has zero OID */
233 LUSTRE_FID_LASTID_OID = 0UL,
234 /** initial fid id value */
235 LUSTRE_FID_INIT_OID = 1UL
239 * Different FID Format
240 * http://arch.lustre.org/index.php?title=Interoperability_fids_zfs#NEW.0
243 * File IDentifier generated by client from range allocated by the seq service.
244 * First 0x400 sequences [2^33, 2^33 + 0x400] are reserved for system use. Note
245 * that on ldiskfs MDTs that IGIF FIDs can use inode numbers starting at 12,
246 * but this is in the IGIF SEQ rangeand does not conflict with assigned FIDs.
249 * Inode and Generation In FID, a surrogate FID used to globally identify an
250 * existing object on OLD formatted MDT file system. This would only be used on
251 * MDT0 in a DNE filesystem, because there are not expected to be any OLD
252 * formatted DNE filesystems. Belongs to a sequence in [12, 2^32 - 1] range,
253 * where sequence number is inode number, and inode generation is used as OID.
254 * NOTE: This assumes no more than 2^32-1 inodes exist in the MDT filesystem,
255 * which is the maximum possible for an ldiskfs backend. NOTE: This assumes
256 * that the reserved ext3/ext4/ldiskfs inode numbers [0-11] are never visible
257 * to clients, which has always been true.
260 * Object ID in FID, a surrogate FID used to globally identify an existing
261 * object on OLD formatted OST file system. Belongs to a sequence in
262 * [2^32, 2^33 - 1]. Sequence number is calculated as:
263 * 1 << 32 | (ost_index << 16) | ((objid >> 32) & 0xffff)
264 * that is, SEQ consists of 16-bit OST index, and higher 16 bits of object ID.
265 * The generation of unique SEQ values per OST allows the IDIF FIDs to be
266 * identified in the FLD correctly. The OID field is calculated as:
268 * that is, it consists of lower 32 bits of object ID. NOTE This assumes that
269 * no more than 2^48-1 objects have ever been created on an OST, and that no
270 * more than 65535 OSTs are in use. Both are very reasonable assumptions (can
271 * uniquely map all objects on an OST that created 1M objects per second for 9
272 * years, or combinations thereof).
275 * Surrogate FID used to identify an existing object on OLD formatted OST
276 * filesystem. Belongs to the reserved sequence 0, and is used internally prior
277 * to the introduction of FID-on-OST, at which point IDIF will be used to
278 * identify objects as residing on a specific OST.
281 * For Lustre Log objects the object sequence 1 is used. This is compatible with
282 * both OLD and NEW.1 namespaces, as this SEQ number is in the ext3/ldiskfs
283 * reserved inode range and does not conflict with IGIF sequence numbers.
286 * For testing OST IO performance the object sequence 2 is used. This is
287 * compatible with both OLD and NEW.1 namespaces, as this SEQ number is in the
288 * ext3/ldiskfs reserved inode range and does not conflict with IGIF sequence
291 * OST_MDT1 .. OST_MAX:
292 * For testing with multiple MDTs the object sequence 3 through 9 is used,
293 * allowing direct mapping of MDTs 1 through 7 respectively, for a total of 8
294 * MDTs including OST_MDT0. This matches the legacy CMD project "group"
295 * mappings. However, this SEQ range is only for testing prior to any production
296 * DNE release, as the objects in this range conflict across all OSTs, as the
297 * OST index is not part of the FID.
300 * For compatibility with existing OLD OST network protocol structures, the FID
301 * must map onto the o_id and o_gr in a manner that ensures existing objects are
302 * identified consistently for IO, as well as onto the lock namespace to ensure
303 * both IDIFs map onto the same objects for IO as well as resources in the DLM.
306 * resource[] = {o_id, o_seq, 0, 0}; // o_seq == 0 for production releases
308 * DLM NEW.1 FID (this is the same for both the MDT and OST):
309 * resource[] = {SEQ, OID, VER, HASH};
311 * Note that for mapping IDIF values to DLM resource names the o_id may be
312 * larger than the 2^33 reserved sequence numbers for IDIF, so it is possible
313 * for the o_id numbers to overlap FID SEQ numbers in the resource. However, in
314 * all production releases the OLD o_seq field is always zero, and all valid FID
315 * OID values are non-zero, so the lock resources will not collide.
317 * For objects within the IDIF range, group extraction (non-CMD) will be:
318 * o_id = (fid->f_seq & 0x7fff) << 16 | fid->f_oid;
319 * o_seq = 0; // formerly group number
323 * Note that reserved SEQ numbers below 12 will conflict with ldiskfs
324 * inodes in the IGIF namespace, so these reserved SEQ numbers can be
325 * used for other purposes and not risk collisions with existing inodes.
328 FID_SEQ_OST_MDT0 = 0,
329 FID_SEQ_LLOG = 1, /* unnamed llogs */
331 FID_SEQ_UNUSED_START = 3,
332 FID_SEQ_UNUSED_END = 9,
333 FID_SEQ_LLOG_NAME = 10, /* named llogs */
336 FID_SEQ_IGIF_MAX = 0x0ffffffffULL,
337 FID_SEQ_IDIF = 0x100000000ULL,
338 FID_SEQ_IDIF_MAX = 0x1ffffffffULL,
339 /* Normal FID sequence starts from this value, i.e. 1<<33 */
340 FID_SEQ_START = 0x200000000ULL,
341 /* sequence for local pre-defined FIDs listed in local_oid */
342 FID_SEQ_LOCAL_FILE = 0x200000001ULL,
343 FID_SEQ_DOT_LUSTRE = 0x200000002ULL,
344 /* sequence is used for local named objects FIDs generated
345 * by local_object_storage library */
346 FID_SEQ_LOCAL_NAME = 0x200000003ULL,
347 /* Because current FLD will only cache the fid sequence, instead
348 * of oid on the client side, if the FID needs to be exposed to
349 * clients sides, it needs to make sure all of fids under one
350 * sequence will be located in one MDT. */
351 FID_SEQ_SPECIAL = 0x200000004ULL,
352 FID_SEQ_QUOTA = 0x200000005ULL,
353 FID_SEQ_QUOTA_GLB = 0x200000006ULL,
354 FID_SEQ_ROOT = 0x200000007ULL, /* Located on MDT0 */
355 FID_SEQ_LAYOUT_RBTREE = 0x200000008ULL,
356 /* sequence is used for update logs of cross-MDT operation */
357 FID_SEQ_UPDATE_LOG = 0x200000009ULL,
358 /* Sequence is used for the directory under which update logs
360 FID_SEQ_UPDATE_LOG_DIR = 0x20000000aULL,
361 FID_SEQ_NORMAL = 0x200000400ULL,
362 FID_SEQ_LOV_DEFAULT = 0xffffffffffffffffULL
365 #define OBIF_OID_MAX_BITS 32
366 #define OBIF_MAX_OID (1ULL << OBIF_OID_MAX_BITS)
367 #define OBIF_OID_MASK ((1ULL << OBIF_OID_MAX_BITS) - 1)
368 #define IDIF_OID_MAX_BITS 48
369 #define IDIF_MAX_OID (1ULL << IDIF_OID_MAX_BITS)
370 #define IDIF_OID_MASK ((1ULL << IDIF_OID_MAX_BITS) - 1)
372 /** OID for FID_SEQ_SPECIAL */
374 /* Big Filesystem Lock to serialize rename operations */
375 FID_OID_SPECIAL_BFL = 1UL,
378 /** OID for FID_SEQ_DOT_LUSTRE */
379 enum dot_lustre_oid {
380 FID_OID_DOT_LUSTRE = 1UL,
381 FID_OID_DOT_LUSTRE_OBF = 2UL,
382 FID_OID_DOT_LUSTRE_LPF = 3UL,
385 /** OID for FID_SEQ_ROOT */
388 FID_OID_ECHO_ROOT = 2UL,
391 struct lu_orphan_rec {
392 /* The MDT-object's FID referenced by the orphan OST-object */
393 struct lu_fid lor_fid;
398 struct lu_orphan_ent {
399 /* The orphan OST-object's FID */
400 struct lu_fid loe_key;
401 struct lu_orphan_rec loe_rec;
406 /** \defgroup lu_dir lu_dir
410 * Enumeration of possible directory entry attributes.
412 * Attributes follow directory entry header in the order they appear in this
415 enum lu_dirent_attrs {
418 LUDA_64BITHASH = 0x0004,
420 /* The following attrs are used for MDT internal only,
421 * not visible to client */
423 /* Something in the record is unknown, to be verified in further. */
424 LUDA_UNKNOWN = 0x0400,
425 /* Ignore this record, go to next directly. */
426 LUDA_IGNORE = 0x0800,
427 /* The system is upgraded, has beed or to be repaired (dryrun). */
428 LUDA_UPGRADE = 0x1000,
429 /* The dirent has been repaired, or to be repaired (dryrun). */
430 LUDA_REPAIR = 0x2000,
431 /* Only check but not repair the dirent inconsistency */
432 LUDA_VERIFY_DRYRUN = 0x4000,
433 /* Verify the dirent consistency */
434 LUDA_VERIFY = 0x8000,
437 #define LU_DIRENT_ATTRS_MASK 0xff00
440 * Layout of readdir pages, as transmitted on wire.
443 /** valid if LUDA_FID is set. */
444 struct lu_fid lde_fid;
445 /** a unique entry identifier: a hash or an offset. */
447 /** total record length, including all attributes. */
451 /** optional variable size attributes following this entry.
452 * taken from enum lu_dirent_attrs.
455 /** name is followed by the attributes indicated in ->ldp_attrs, in
456 * their natural order. After the last attribute, padding bytes are
457 * added to make ->lde_reclen a multiple of 8.
463 * Definitions of optional directory entry attributes formats.
465 * Individual attributes do not have their length encoded in a generic way. It
466 * is assumed that consumer of an attribute knows its format. This means that
467 * it is impossible to skip over an unknown attribute, except by skipping over all
468 * remaining attributes (by using ->lde_reclen), which is not too
469 * constraining, because new server versions will append new attributes at
470 * the end of an entry.
474 * Fid directory attribute: a fid of an object referenced by the entry. This
475 * will be almost always requested by the client and supplied by the server.
477 * Aligned to 8 bytes.
479 /* To have compatibility with 1.8, lets have fid in lu_dirent struct. */
484 * Aligned to 2 bytes.
491 __u64 ldp_hash_start;
495 struct lu_dirent ldp_entries[0];
498 enum lu_dirpage_flags {
500 * dirpage contains no entry.
504 * last entry's lde_hash equals ldp_hash_end.
509 static inline struct lu_dirent *lu_dirent_start(struct lu_dirpage *dp)
511 if (__le32_to_cpu(dp->ldp_flags) & LDF_EMPTY)
514 return dp->ldp_entries;
517 static inline struct lu_dirent *lu_dirent_next(struct lu_dirent *ent)
519 struct lu_dirent *next;
521 if (__le16_to_cpu(ent->lde_reclen) != 0)
522 next = ((void *)ent) + __le16_to_cpu(ent->lde_reclen);
529 static inline size_t lu_dirent_calc_size(size_t namelen, __u16 attr)
533 if (attr & LUDA_TYPE) {
534 const size_t align = sizeof(struct luda_type) - 1;
535 size = (sizeof(struct lu_dirent) + namelen + align) & ~align;
536 size += sizeof(struct luda_type);
538 size = sizeof(struct lu_dirent) + namelen;
540 return (size + 7) & ~7;
543 #define MDS_DIR_END_OFF 0xfffffffffffffffeULL
546 * MDS_READPAGE page size
548 * This is the directory page size packed in MDS_READPAGE RPC.
549 * It's different than PAGE_SIZE because the client needs to
550 * access the struct lu_dirpage header packed at the beginning of
551 * the "page" and without this there isn't any way to know find the
552 * lu_dirpage header is if client and server PAGE_SIZE differ.
554 #define LU_PAGE_SHIFT 12
555 #define LU_PAGE_SIZE (1UL << LU_PAGE_SHIFT)
556 #define LU_PAGE_MASK (~(LU_PAGE_SIZE - 1))
558 #define LU_PAGE_COUNT (1 << (PAGE_SHIFT - LU_PAGE_SHIFT))
562 struct lustre_handle {
565 #define DEAD_HANDLE_MAGIC 0xdeadbeefcafebabeULL
567 static inline bool lustre_handle_is_used(const struct lustre_handle *lh)
569 return lh->cookie != 0;
572 static inline bool lustre_handle_equal(const struct lustre_handle *lh1,
573 const struct lustre_handle *lh2)
575 return lh1->cookie == lh2->cookie;
578 static inline void lustre_handle_copy(struct lustre_handle *tgt,
579 const struct lustre_handle *src)
581 tgt->cookie = src->cookie;
584 struct lustre_handle_array {
586 struct lustre_handle handles[0];
589 /* flags for lm_flags */
590 #define MSGHDR_AT_SUPPORT 0x1
591 #define MSGHDR_CKSUM_INCOMPAT18 0x2
593 #define lustre_msg lustre_msg_v2
594 /* we depend on this structure to be 8-byte aligned */
595 /* this type is only endian-adjusted in lustre_unpack_msg() */
596 struct lustre_msg_v2 {
608 /* without gss, ptlrpc_body is put at the first buffer. */
609 #define PTLRPC_NUM_VERSIONS 4
610 struct ptlrpc_body_v3 {
611 struct lustre_handle pb_handle;
616 __u64 pb_last_xid; /* highest replied XID without lower unreplied XID */
617 __u16 pb_tag; /* virtual slot idx for multiple modifying RPCs */
620 __u64 pb_last_committed;
625 __u32 pb_timeout; /* for req, the deadline, for rep, the service est */
626 __u32 pb_service_time; /* for rep, actual service time */
629 /* VBR: pre-versions */
630 __u64 pb_pre_versions[PTLRPC_NUM_VERSIONS];
631 __u64 pb_mbits; /**< match bits for bulk request */
632 /* padding for future needs */
633 __u64 pb_padding64_0;
634 __u64 pb_padding64_1;
635 __u64 pb_padding64_2;
636 char pb_jobid[LUSTRE_JOBID_SIZE];
638 #define ptlrpc_body ptlrpc_body_v3
640 struct ptlrpc_body_v2 {
641 struct lustre_handle pb_handle;
646 __u64 pb_last_xid; /* highest replied XID without lower unreplied XID */
647 __u16 pb_tag; /* virtual slot idx for multiple modifying RPCs */
650 __u64 pb_last_committed;
655 __u32 pb_timeout; /* for req, the deadline, for rep, the service est */
656 __u32 pb_service_time; /* for rep, actual service time, also used for
657 net_latency of req */
660 /* VBR: pre-versions */
661 __u64 pb_pre_versions[PTLRPC_NUM_VERSIONS];
662 __u64 pb_mbits; /**< unused in V2 */
663 /* padding for future needs */
664 __u64 pb_padding64_0;
665 __u64 pb_padding64_1;
666 __u64 pb_padding64_2;
669 /* message body offset for lustre_msg_v2 */
670 /* ptlrpc body offset in all request/reply messages */
671 #define MSG_PTLRPC_BODY_OFF 0
673 /* normal request/reply message record offset */
674 #define REQ_REC_OFF 1
675 #define REPLY_REC_OFF 1
677 /* ldlm request message body offset */
678 #define DLM_LOCKREQ_OFF 1 /* lockreq offset */
679 #define DLM_REQ_REC_OFF 2 /* normal dlm request record offset */
681 /* ldlm intent lock message body offset */
682 #define DLM_INTENT_IT_OFF 2 /* intent lock it offset */
683 #define DLM_INTENT_REC_OFF 3 /* intent lock record offset */
685 /* ldlm reply message body offset */
686 #define DLM_LOCKREPLY_OFF 1 /* lockrep offset */
687 #define DLM_REPLY_REC_OFF 2 /* reply record offset */
689 /** only use in req->rq_{req,rep}_swab_mask */
690 #define MSG_PTLRPC_HEADER_OFF 31
692 /* Flags that are operation-specific go in the top 16 bits. */
693 #define MSG_OP_FLAG_MASK 0xffff0000
694 #define MSG_OP_FLAG_SHIFT 16
696 /* Flags that apply to all requests are in the bottom 16 bits */
697 #define MSG_GEN_FLAG_MASK 0x0000ffff
698 #define MSG_LAST_REPLAY 0x0001
699 #define MSG_RESENT 0x0002
700 #define MSG_REPLAY 0x0004
701 /* #define MSG_AT_SUPPORT 0x0008
702 * This was used in early prototypes of adaptive timeouts, and while there
703 * shouldn't be any users of that code there also isn't a need for using this
704 * bits. Defer usage until at least 1.10 to avoid potential conflict. */
705 #define MSG_DELAY_REPLAY 0x0010
706 #define MSG_VERSION_REPLAY 0x0020
707 #define MSG_REQ_REPLAY_DONE 0x0040
708 #define MSG_LOCK_REPLAY_DONE 0x0080
711 * Flags for all connect opcodes (MDS_CONNECT, OST_CONNECT)
714 #define MSG_CONNECT_RECOVERING 0x00000001
715 #define MSG_CONNECT_RECONNECT 0x00000002
716 #define MSG_CONNECT_REPLAYABLE 0x00000004
717 //#define MSG_CONNECT_PEER 0x8
718 #define MSG_CONNECT_LIBCLIENT 0x00000010
719 #define MSG_CONNECT_INITIAL 0x00000020
720 #define MSG_CONNECT_ASYNC 0x00000040
721 #define MSG_CONNECT_NEXT_VER 0x00000080 /* use next version of lustre_msg */
722 #define MSG_CONNECT_TRANSNO 0x00000100 /* report transno */
725 #define OBD_CONNECT_RDONLY 0x1ULL /*client has read-only access*/
726 #define OBD_CONNECT_INDEX 0x2ULL /*connect specific LOV idx */
727 #define OBD_CONNECT_MDS 0x4ULL /*connect from MDT to OST */
728 #define OBD_CONNECT_GRANT 0x8ULL /*OSC gets grant at connect */
729 #define OBD_CONNECT_SRVLOCK 0x10ULL /*server takes locks for cli */
730 #define OBD_CONNECT_VERSION 0x20ULL /*Lustre versions in ocd */
731 #define OBD_CONNECT_REQPORTAL 0x40ULL /*Separate non-IO req portal */
732 #define OBD_CONNECT_ACL 0x80ULL /*access control lists */
733 #define OBD_CONNECT_XATTR 0x100ULL /*client use extended attr */
734 #define OBD_CONNECT_CROW 0x200ULL /*MDS+OST create obj on write*/
735 #define OBD_CONNECT_TRUNCLOCK 0x400ULL /*locks on server for punch */
736 #define OBD_CONNECT_TRANSNO 0x800ULL /*replay sends init transno */
737 #define OBD_CONNECT_IBITS 0x1000ULL /*support for inodebits locks*/
738 #define OBD_CONNECT_BARRIER 0x2000ULL /* write barrier */
739 #define OBD_CONNECT_ATTRFID 0x4000ULL /*Server can GetAttr By Fid*/
740 #define OBD_CONNECT_NODEVOH 0x8000ULL /*No open hndl on specl nodes*/
741 #define OBD_CONNECT_RMT_CLIENT 0x10000ULL /* Remote client, never used
742 * in production. Removed in
743 * 2.9. Keep this flag to
746 #define OBD_CONNECT_RMT_CLIENT_FORCE 0x20000ULL /* Remote client by force,
747 * never used in production.
748 * Removed in 2.9. Keep this
749 * flag to avoid reusing.
751 #define OBD_CONNECT_BRW_SIZE 0x40000ULL /*Max bytes per rpc */
752 #define OBD_CONNECT_QUOTA64 0x80000ULL /*Not used since 2.4 */
753 #define OBD_CONNECT_MDS_CAPA 0x100000ULL /*MDS capability */
754 #define OBD_CONNECT_OSS_CAPA 0x200000ULL /*OSS capability */
755 #define OBD_CONNECT_CANCELSET 0x400000ULL /*Early batched cancels. */
756 #define OBD_CONNECT_SOM 0x800000ULL /*Size on MDS */
757 #define OBD_CONNECT_AT 0x1000000ULL /*client uses AT */
758 #define OBD_CONNECT_LRU_RESIZE 0x2000000ULL /*LRU resize feature. */
759 #define OBD_CONNECT_MDS_MDS 0x4000000ULL /*MDS-MDS connection */
760 #define OBD_CONNECT_REAL 0x8000000ULL /* obsolete since 2.8 */
761 #define OBD_CONNECT_CHANGE_QS 0x10000000ULL /*Not used since 2.4 */
762 #define OBD_CONNECT_CKSUM 0x20000000ULL /*support several cksum algos*/
763 #define OBD_CONNECT_FID 0x40000000ULL /*FID is supported by server */
764 #define OBD_CONNECT_VBR 0x80000000ULL /*version based recovery */
765 #define OBD_CONNECT_LOV_V3 0x100000000ULL /*client supports LOV v3 EA */
766 #define OBD_CONNECT_GRANT_SHRINK 0x200000000ULL /* support grant shrink */
767 #define OBD_CONNECT_SKIP_ORPHAN 0x400000000ULL /* don't reuse orphan objids */
768 #define OBD_CONNECT_MAX_EASIZE 0x800000000ULL /* preserved for large EA */
769 #define OBD_CONNECT_FULL20 0x1000000000ULL /* it is 2.0 client */
770 #define OBD_CONNECT_LAYOUTLOCK 0x2000000000ULL /* client uses layout lock */
771 #define OBD_CONNECT_64BITHASH 0x4000000000ULL /* client supports 64-bits
773 #define OBD_CONNECT_MAXBYTES 0x8000000000ULL /* max stripe size */
774 #define OBD_CONNECT_IMP_RECOV 0x10000000000ULL /* imp recovery support */
775 #define OBD_CONNECT_JOBSTATS 0x20000000000ULL /* jobid in ptlrpc_body */
776 #define OBD_CONNECT_UMASK 0x40000000000ULL /* create uses client umask */
777 #define OBD_CONNECT_EINPROGRESS 0x80000000000ULL /* client handles -EINPROGRESS
778 * RPC error properly */
779 #define OBD_CONNECT_GRANT_PARAM 0x100000000000ULL/* extra grant params used for
780 * finer space reservation */
781 #define OBD_CONNECT_FLOCK_OWNER 0x200000000000ULL /* for the fixed 1.8
782 * policy and 2.x server */
783 #define OBD_CONNECT_LVB_TYPE 0x400000000000ULL /* variable type of LVB */
784 #define OBD_CONNECT_NANOSEC_TIME 0x800000000000ULL /* nanosecond timestamps */
785 #define OBD_CONNECT_LIGHTWEIGHT 0x1000000000000ULL/* lightweight connection */
786 #define OBD_CONNECT_SHORTIO 0x2000000000000ULL/* short io */
787 #define OBD_CONNECT_PINGLESS 0x4000000000000ULL/* pings not required */
788 #define OBD_CONNECT_FLOCK_DEAD 0x8000000000000ULL/* improved flock deadlock detection */
789 #define OBD_CONNECT_DISP_STRIPE 0x10000000000000ULL/* create stripe disposition*/
790 #define OBD_CONNECT_OPEN_BY_FID 0x20000000000000ULL /* open by fid won't pack
792 #define OBD_CONNECT_LFSCK 0x40000000000000ULL/* support online LFSCK */
793 #define OBD_CONNECT_UNLINK_CLOSE 0x100000000000000ULL/* close file in unlink */
794 #define OBD_CONNECT_MULTIMODRPCS 0x200000000000000ULL /* support multiple modify
796 #define OBD_CONNECT_DIR_STRIPE 0x400000000000000ULL /* striped DNE dir */
797 #define OBD_CONNECT_SUBTREE 0x800000000000000ULL /* fileset mount */
798 #define OBD_CONNECT_LOCK_AHEAD 0x1000000000000000ULL /* lock ahead */
799 /** bulk matchbits is sent within ptlrpc_body */
800 #define OBD_CONNECT_BULK_MBITS 0x2000000000000000ULL
801 #define OBD_CONNECT_OBDOPACK 0x4000000000000000ULL /* compact OUT obdo */
802 #define OBD_CONNECT_FLAGS2 0x8000000000000000ULL /* second flags word */
803 /* ocd_connect_flags2 flags */
804 #define OBD_CONNECT2_FILE_SECCTX 0x1ULL /* set file security context at create */
807 * Please DO NOT add flag values here before first ensuring that this same
808 * flag value is not in use on some other branch. Please clear any such
809 * changes with senior engineers before starting to use a new flag. Then,
810 * submit a small patch against EVERY branch that ONLY adds the new flag,
811 * updates obd_connect_names[] for lprocfs_rd_connect_flags(), adds the
812 * flag to check_obd_connect_data(), and updates wiretests accordingly, so it
813 * can be approved and landed easily to reserve the flag for future use. */
815 /* The MNE_SWAB flag is overloading the MDS_MDS bit only for the MGS
816 * connection. It is a temporary bug fix for Imperative Recovery interop
817 * between 2.2 and 2.3 x86/ppc nodes, and can be removed when interop for
818 * 2.2 clients/servers is no longer needed. LU-1252/LU-1644. */
819 #define OBD_CONNECT_MNE_SWAB OBD_CONNECT_MDS_MDS
821 #define OCD_HAS_FLAG(ocd, flg) \
822 (!!((ocd)->ocd_connect_flags & OBD_CONNECT_##flg))
825 #ifdef HAVE_LRU_RESIZE_SUPPORT
826 #define LRU_RESIZE_CONNECT_FLAG OBD_CONNECT_LRU_RESIZE
828 #define LRU_RESIZE_CONNECT_FLAG 0
831 #define MDT_CONNECT_SUPPORTED (OBD_CONNECT_RDONLY | OBD_CONNECT_VERSION | \
832 OBD_CONNECT_ACL | OBD_CONNECT_XATTR | \
833 OBD_CONNECT_IBITS | OBD_CONNECT_NODEVOH | \
834 OBD_CONNECT_ATTRFID | OBD_CONNECT_CANCELSET | \
835 OBD_CONNECT_AT | OBD_CONNECT_BRW_SIZE | \
836 OBD_CONNECT_MDS_MDS | OBD_CONNECT_FID | \
837 LRU_RESIZE_CONNECT_FLAG | OBD_CONNECT_VBR | \
838 OBD_CONNECT_LOV_V3 | OBD_CONNECT_FULL20 | \
839 OBD_CONNECT_64BITHASH | OBD_CONNECT_JOBSTATS | \
840 OBD_CONNECT_EINPROGRESS | \
841 OBD_CONNECT_LIGHTWEIGHT | OBD_CONNECT_UMASK | \
842 OBD_CONNECT_LVB_TYPE | OBD_CONNECT_LAYOUTLOCK |\
843 OBD_CONNECT_PINGLESS | OBD_CONNECT_MAX_EASIZE |\
844 OBD_CONNECT_FLOCK_DEAD | \
845 OBD_CONNECT_DISP_STRIPE | OBD_CONNECT_LFSCK | \
846 OBD_CONNECT_OPEN_BY_FID | \
847 OBD_CONNECT_DIR_STRIPE | \
848 OBD_CONNECT_BULK_MBITS | \
849 OBD_CONNECT_MULTIMODRPCS | \
850 OBD_CONNECT_SUBTREE | \
853 #define MDT_CONNECT_SUPPORTED2 OBD_CONNECT2_FILE_SECCTX
855 #define OST_CONNECT_SUPPORTED (OBD_CONNECT_SRVLOCK | OBD_CONNECT_GRANT | \
856 OBD_CONNECT_REQPORTAL | OBD_CONNECT_VERSION | \
857 OBD_CONNECT_TRUNCLOCK | OBD_CONNECT_INDEX | \
858 OBD_CONNECT_BRW_SIZE | OBD_CONNECT_CANCELSET | \
859 OBD_CONNECT_AT | LRU_RESIZE_CONNECT_FLAG | \
860 OBD_CONNECT_CKSUM | OBD_CONNECT_VBR | \
861 OBD_CONNECT_MDS | OBD_CONNECT_SKIP_ORPHAN | \
862 OBD_CONNECT_GRANT_SHRINK | OBD_CONNECT_FULL20 |\
863 OBD_CONNECT_64BITHASH | OBD_CONNECT_MAXBYTES | \
864 OBD_CONNECT_MAX_EASIZE | \
865 OBD_CONNECT_EINPROGRESS | \
866 OBD_CONNECT_JOBSTATS | \
867 OBD_CONNECT_LIGHTWEIGHT | OBD_CONNECT_LVB_TYPE|\
868 OBD_CONNECT_LAYOUTLOCK | OBD_CONNECT_FID | \
869 OBD_CONNECT_PINGLESS | OBD_CONNECT_LFSCK | \
870 OBD_CONNECT_BULK_MBITS | \
871 OBD_CONNECT_GRANT_PARAM)
872 #define OST_CONNECT_SUPPORTED2 0
874 #define ECHO_CONNECT_SUPPORTED 0
875 #define ECHO_CONNECT_SUPPORTED2 0
877 #define MGS_CONNECT_SUPPORTED (OBD_CONNECT_VERSION | OBD_CONNECT_AT | \
878 OBD_CONNECT_FULL20 | OBD_CONNECT_IMP_RECOV | \
879 OBD_CONNECT_MNE_SWAB | OBD_CONNECT_PINGLESS |\
880 OBD_CONNECT_BULK_MBITS | OBD_CONNECT_BARRIER)
882 #define MGS_CONNECT_SUPPORTED2 0
884 /* Features required for this version of the client to work with server */
885 #define CLIENT_CONNECT_MDT_REQD (OBD_CONNECT_IBITS | OBD_CONNECT_FID | \
888 /* This structure is used for both request and reply.
890 * If we eventually have separate connect data for different types, which we
891 * almost certainly will, then perhaps we stick a union in here. */
892 struct obd_connect_data {
893 __u64 ocd_connect_flags; /* OBD_CONNECT_* per above */
894 __u32 ocd_version; /* lustre release version number */
895 __u32 ocd_grant; /* initial cache grant amount (bytes) */
896 __u32 ocd_index; /* LOV index to connect to */
897 __u32 ocd_brw_size; /* Maximum BRW size in bytes */
898 __u64 ocd_ibits_known; /* inode bits this client understands */
899 __u8 ocd_grant_blkbits; /* log2 of the backend filesystem blocksize */
900 __u8 ocd_grant_inobits; /* log2 of the per-inode space consumption */
901 __u16 ocd_grant_tax_kb; /* extent insertion overhead, in 1K blocks */
902 __u32 ocd_grant_max_blks;/* maximum number of blocks per extent */
903 __u64 ocd_transno; /* first transno from client to be replayed */
904 __u32 ocd_group; /* MDS group on OST */
905 __u32 ocd_cksum_types; /* supported checksum algorithms */
906 __u32 ocd_max_easize; /* How big LOV EA can be on MDS */
907 __u32 ocd_instance; /* instance # of this target */
908 __u64 ocd_maxbytes; /* Maximum stripe size in bytes */
909 /* Fields after ocd_maxbytes are only accessible by the receiver
910 * if the corresponding flag in ocd_connect_flags is set. Accessing
911 * any field after ocd_maxbytes on the receiver without a valid flag
912 * may result in out-of-bound memory access and kernel oops. */
913 __u16 ocd_maxmodrpcs; /* Maximum modify RPCs in parallel */
914 __u16 padding0; /* added 2.1.0. also fix lustre_swab_connect */
915 __u32 padding1; /* added 2.1.0. also fix lustre_swab_connect */
916 __u64 ocd_connect_flags2;
917 __u64 padding3; /* added 2.1.0. also fix lustre_swab_connect */
918 __u64 padding4; /* added 2.1.0. also fix lustre_swab_connect */
919 __u64 padding5; /* added 2.1.0. also fix lustre_swab_connect */
920 __u64 padding6; /* added 2.1.0. also fix lustre_swab_connect */
921 __u64 padding7; /* added 2.1.0. also fix lustre_swab_connect */
922 __u64 padding8; /* added 2.1.0. also fix lustre_swab_connect */
923 __u64 padding9; /* added 2.1.0. also fix lustre_swab_connect */
924 __u64 paddingA; /* added 2.1.0. also fix lustre_swab_connect */
925 __u64 paddingB; /* added 2.1.0. also fix lustre_swab_connect */
926 __u64 paddingC; /* added 2.1.0. also fix lustre_swab_connect */
927 __u64 paddingD; /* added 2.1.0. also fix lustre_swab_connect */
928 __u64 paddingE; /* added 2.1.0. also fix lustre_swab_connect */
929 __u64 paddingF; /* added 2.1.0. also fix lustre_swab_connect */
932 * Please DO NOT use any fields here before first ensuring that this same
933 * field is not in use on some other branch. Please clear any such changes
934 * with senior engineers before starting to use a new field. Then, submit
935 * a small patch against EVERY branch that ONLY adds the new field along with
936 * the matching OBD_CONNECT flag, so that can be approved and landed easily to
937 * reserve the flag for future use. */
940 * Supported checksum algorithms. Up to 32 checksum types are supported.
941 * (32-bit mask stored in obd_connect_data::ocd_cksum_types)
942 * Please update DECLARE_CKSUM_NAME/OBD_CKSUM_ALL in obd.h when adding a new
943 * algorithm and also the OBD_FL_CKSUM* flags.
945 typedef enum cksum_types {
946 OBD_CKSUM_CRC32 = 0x00000001,
947 OBD_CKSUM_ADLER = 0x00000002,
948 OBD_CKSUM_CRC32C= 0x00000004,
952 * OST requests: OBDO & OBD request records
957 OST_REPLY = 0, /* reply ? */
973 OST_QUOTACHECK = 18, /* not used since 2.4 */
975 OST_QUOTA_ADJUST_QUNIT = 20, /* not used since 2.4 */
977 OST_LAST_OPC /* must be < 33 to avoid MDS_GETATTR */
979 #define OST_FIRST_OPC OST_REPLY
982 OBD_FL_INLINEDATA = 0x00000001,
983 OBD_FL_OBDMDEXISTS = 0x00000002,
984 OBD_FL_DELORPHAN = 0x00000004, /* if set in o_flags delete orphans */
985 OBD_FL_NORPC = 0x00000008, /* set in o_flags do in OSC not OST */
986 OBD_FL_IDONLY = 0x00000010, /* set in o_flags only adjust obj id*/
987 OBD_FL_RECREATE_OBJS= 0x00000020, /* recreate missing obj */
988 OBD_FL_DEBUG_CHECK = 0x00000040, /* echo client/server debug check */
989 OBD_FL_NO_USRQUOTA = 0x00000100, /* the object's owner is over quota */
990 OBD_FL_NO_GRPQUOTA = 0x00000200, /* the object's group is over quota */
991 OBD_FL_CREATE_CROW = 0x00000400, /* object should be create on write */
992 OBD_FL_SRVLOCK = 0x00000800, /* delegate DLM locking to server */
993 OBD_FL_CKSUM_CRC32 = 0x00001000, /* CRC32 checksum type */
994 OBD_FL_CKSUM_ADLER = 0x00002000, /* ADLER checksum type */
995 OBD_FL_CKSUM_CRC32C = 0x00004000, /* CRC32C checksum type */
996 OBD_FL_CKSUM_RSVD2 = 0x00008000, /* for future cksum types */
997 OBD_FL_CKSUM_RSVD3 = 0x00010000, /* for future cksum types */
998 OBD_FL_SHRINK_GRANT = 0x00020000, /* object shrink the grant */
999 OBD_FL_MMAP = 0x00040000, /* object is mmapped on the client.
1000 * XXX: obsoleted - reserved for old
1001 * clients prior than 2.2 */
1002 OBD_FL_RECOV_RESEND = 0x00080000, /* recoverable resent */
1003 OBD_FL_NOSPC_BLK = 0x00100000, /* no more block space on OST */
1004 OBD_FL_FLUSH = 0x00200000, /* flush pages on the OST */
1005 OBD_FL_SHORT_IO = 0x00400000, /* short io request */
1007 /* Note that while these checksum values are currently separate bits,
1008 * in 2.x we can actually allow all values from 1-31 if we wanted. */
1009 OBD_FL_CKSUM_ALL = OBD_FL_CKSUM_CRC32 | OBD_FL_CKSUM_ADLER |
1010 OBD_FL_CKSUM_CRC32C,
1012 /* mask for local-only flag, which won't be sent over network */
1013 OBD_FL_LOCAL_MASK = 0xF0000000,
1017 * All LOV EA magics should have the same postfix, if some new version
1018 * Lustre instroduces new LOV EA magic, then when down-grade to an old
1019 * Lustre, even though the old version system does not recognizes such
1020 * new magic, it still can distinguish the corrupted cases by checking
1021 * the magic's postfix.
1023 #define LOV_MAGIC_MAGIC 0x0BD0
1024 #define LOV_MAGIC_MASK 0xFFFF
1026 #define LOV_MAGIC_V1 (0x0BD10000 | LOV_MAGIC_MAGIC)
1027 #define LOV_MAGIC_JOIN_V1 (0x0BD20000 | LOV_MAGIC_MAGIC)
1028 #define LOV_MAGIC_V3 (0x0BD30000 | LOV_MAGIC_MAGIC)
1029 #define LOV_MAGIC_MIGRATE (0x0BD40000 | LOV_MAGIC_MAGIC)
1030 /* reserved for specifying OSTs */
1031 #define LOV_MAGIC_SPECIFIC (0x0BD50000 | LOV_MAGIC_MAGIC)
1032 #define LOV_MAGIC LOV_MAGIC_V1
1033 #define LOV_MAGIC_COMP_V1 (0x0BD60000 | LOV_MAGIC_MAGIC)
1036 * magic for fully defined striping
1037 * the idea is that we should have different magics for striping "hints"
1038 * (struct lov_user_md_v[13]) and defined ready-to-use striping (struct
1039 * lov_mds_md_v[13]). at the moment the magics are used in wire protocol,
1040 * we can't just change it w/o long way preparation, but we still need a
1041 * mechanism to allow LOD to differentiate hint versus ready striping.
1042 * so, at the moment we do a trick: MDT knows what to expect from request
1043 * depending on the case (replay uses ready striping, non-replay req uses
1044 * hints), so MDT replaces magic with appropriate one and now LOD can
1045 * easily understand what's inside -bzzz
1047 * those *_DEF magics are only used on server side internally, they
1048 * won't be put on wire or disk.
1050 #define LOV_MAGIC_DEF 0x10000000
1051 #define LOV_MAGIC_V1_DEF (LOV_MAGIC_DEF | LOV_MAGIC_V1)
1052 #define LOV_MAGIC_V3_DEF (LOV_MAGIC_DEF | LOV_MAGIC_V3)
1053 #define LOV_MAGIC_COMP_V1_DEF (LOV_MAGIC_DEF | LOV_MAGIC_COMP_V1)
1055 #define lov_pattern(pattern) (pattern & ~LOV_PATTERN_F_MASK)
1056 #define lov_pattern_flags(pattern) (pattern & LOV_PATTERN_F_MASK)
1058 #define lov_ost_data lov_ost_data_v1
1059 struct lov_ost_data_v1 { /* per-stripe data structure (little-endian)*/
1060 struct ost_id l_ost_oi; /* OST object ID */
1061 __u32 l_ost_gen; /* generation of this l_ost_idx */
1062 __u32 l_ost_idx; /* OST index in LOV (lov_tgt_desc->tgts) */
1065 #define lov_mds_md lov_mds_md_v1
1066 struct lov_mds_md_v1 { /* LOV EA mds/wire data (little-endian) */
1067 __u32 lmm_magic; /* magic number = LOV_MAGIC_V1 */
1068 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
1069 struct ost_id lmm_oi; /* LOV object ID */
1070 __u32 lmm_stripe_size; /* size of stripe in bytes */
1071 /* lmm_stripe_count used to be __u32 */
1072 __u16 lmm_stripe_count; /* num stripes in use for this object */
1073 __u16 lmm_layout_gen; /* layout generation number */
1074 struct lov_ost_data_v1 lmm_objects[0]; /* per-stripe data */
1077 #define MAX_MD_SIZE (sizeof(struct lov_mds_md) + 4 * sizeof(struct lov_ost_data))
1078 #define MIN_MD_SIZE (sizeof(struct lov_mds_md) + 1 * sizeof(struct lov_ost_data))
1080 /* This is the default MDT reply size allocated, should the striping be bigger,
1081 * it will be reallocated in mdt_fix_reply.
1082 * 100 stripes is a bit less than 2.5k of data */
1083 #define DEF_REP_MD_SIZE (sizeof(struct lov_mds_md) + \
1084 100 * sizeof(struct lov_ost_data))
1086 #define XATTR_NAME_ACL_ACCESS "system.posix_acl_access"
1087 #define XATTR_NAME_ACL_DEFAULT "system.posix_acl_default"
1088 #define XATTR_USER_PREFIX "user."
1089 #define XATTR_TRUSTED_PREFIX "trusted."
1090 #define XATTR_SECURITY_PREFIX "security."
1092 #define XATTR_NAME_LOV "trusted.lov"
1093 #define XATTR_NAME_LMA "trusted.lma"
1094 #define XATTR_NAME_LMV "trusted.lmv"
1095 #define XATTR_NAME_DEFAULT_LMV "trusted.dmv"
1096 #define XATTR_NAME_LINK "trusted.link"
1097 #define XATTR_NAME_FID "trusted.fid"
1098 #define XATTR_NAME_VERSION "trusted.version"
1099 #define XATTR_NAME_SOM "trusted.som"
1100 #define XATTR_NAME_HSM "trusted.hsm"
1101 #define XATTR_NAME_LFSCK_BITMAP "trusted.lfsck_bitmap"
1102 #define XATTR_NAME_DUMMY "trusted.dummy"
1104 #define XATTR_NAME_LFSCK_NAMESPACE "trusted.lfsck_ns"
1105 #define XATTR_NAME_MAX_LEN 32 /* increase this, if there is longer name. */
1107 struct lov_mds_md_v3 { /* LOV EA mds/wire data (little-endian) */
1108 __u32 lmm_magic; /* magic number = LOV_MAGIC_V3 */
1109 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
1110 struct ost_id lmm_oi; /* LOV object ID */
1111 __u32 lmm_stripe_size; /* size of stripe in bytes */
1112 /* lmm_stripe_count used to be __u32 */
1113 __u16 lmm_stripe_count; /* num stripes in use for this object */
1114 __u16 lmm_layout_gen; /* layout generation number */
1115 char lmm_pool_name[LOV_MAXPOOLNAME + 1]; /* must be 32bit aligned */
1116 struct lov_ost_data_v1 lmm_objects[0]; /* per-stripe data */
1119 static inline __u32 lov_mds_md_size(__u16 stripes, __u32 lmm_magic)
1121 if (lmm_magic == LOV_MAGIC_V3)
1122 return sizeof(struct lov_mds_md_v3) +
1123 stripes * sizeof(struct lov_ost_data_v1);
1125 return sizeof(struct lov_mds_md_v1) +
1126 stripes * sizeof(struct lov_ost_data_v1);
1130 lov_mds_md_max_stripe_count(size_t buf_size, __u32 lmm_magic)
1132 switch (lmm_magic) {
1133 case LOV_MAGIC_V1: {
1134 struct lov_mds_md_v1 lmm;
1136 if (buf_size < sizeof(lmm))
1139 return (buf_size - sizeof(lmm)) / sizeof(lmm.lmm_objects[0]);
1141 case LOV_MAGIC_V3: {
1142 struct lov_mds_md_v3 lmm;
1144 if (buf_size < sizeof(lmm))
1147 return (buf_size - sizeof(lmm)) / sizeof(lmm.lmm_objects[0]);
1154 #define OBD_MD_FLID (0x00000001ULL) /* object ID */
1155 #define OBD_MD_FLATIME (0x00000002ULL) /* access time */
1156 #define OBD_MD_FLMTIME (0x00000004ULL) /* data modification time */
1157 #define OBD_MD_FLCTIME (0x00000008ULL) /* change time */
1158 #define OBD_MD_FLSIZE (0x00000010ULL) /* size */
1159 #define OBD_MD_FLBLOCKS (0x00000020ULL) /* allocated blocks count */
1160 #define OBD_MD_FLBLKSZ (0x00000040ULL) /* block size */
1161 #define OBD_MD_FLMODE (0x00000080ULL) /* access bits (mode & ~S_IFMT) */
1162 #define OBD_MD_FLTYPE (0x00000100ULL) /* object type (mode & S_IFMT) */
1163 #define OBD_MD_FLUID (0x00000200ULL) /* user ID */
1164 #define OBD_MD_FLGID (0x00000400ULL) /* group ID */
1165 #define OBD_MD_FLFLAGS (0x00000800ULL) /* flags word */
1166 #define OBD_MD_FLNLINK (0x00002000ULL) /* link count */
1167 #define OBD_MD_FLGENER (0x00004000ULL) /* generation number */
1168 /*#define OBD_MD_FLINLINE (0x00008000ULL) inline data. used until 1.6.5 */
1169 #define OBD_MD_FLRDEV (0x00010000ULL) /* device number */
1170 #define OBD_MD_FLEASIZE (0x00020000ULL) /* extended attribute data */
1171 #define OBD_MD_LINKNAME (0x00040000ULL) /* symbolic link target */
1172 #define OBD_MD_FLHANDLE (0x00080000ULL) /* file/lock handle */
1173 #define OBD_MD_FLCKSUM (0x00100000ULL) /* bulk data checksum */
1174 #define OBD_MD_FLQOS (0x00200000ULL) /* quality of service stats */
1175 /*#define OBD_MD_FLOSCOPQ (0x00400000ULL) osc opaque data, never used */
1176 /* OBD_MD_FLCOOKIE (0x00800000ULL) obsolete in 2.8 */
1177 #define OBD_MD_FLGROUP (0x01000000ULL) /* group */
1178 #define OBD_MD_FLFID (0x02000000ULL) /* ->ost write inline fid */
1179 #define OBD_MD_FLEPOCH (0x04000000ULL) /* ->ost write with ioepoch */
1180 /* ->mds if epoch opens or closes */
1181 #define OBD_MD_FLGRANT (0x08000000ULL) /* ost preallocation space grant */
1182 #define OBD_MD_FLDIREA (0x10000000ULL) /* dir's extended attribute data */
1183 #define OBD_MD_FLUSRQUOTA (0x20000000ULL) /* over quota flags sent from ost */
1184 #define OBD_MD_FLGRPQUOTA (0x40000000ULL) /* over quota flags sent from ost */
1185 #define OBD_MD_FLMODEASIZE (0x80000000ULL) /* EA size will be changed */
1187 #define OBD_MD_MDS (0x0000000100000000ULL) /* where an inode lives on */
1188 #define OBD_MD_REINT (0x0000000200000000ULL) /* reintegrate oa */
1189 #define OBD_MD_MEA (0x0000000400000000ULL) /* CMD split EA */
1190 #define OBD_MD_TSTATE (0x0000000800000000ULL) /* transient state field */
1192 #define OBD_MD_FLXATTR (0x0000001000000000ULL) /* xattr */
1193 #define OBD_MD_FLXATTRLS (0x0000002000000000ULL) /* xattr list */
1194 #define OBD_MD_FLXATTRRM (0x0000004000000000ULL) /* xattr remove */
1195 #define OBD_MD_FLACL (0x0000008000000000ULL) /* ACL */
1196 /* OBD_MD_FLRMTPERM (0x0000010000000000ULL) remote perm, obsolete */
1197 #define OBD_MD_FLMDSCAPA (0x0000020000000000ULL) /* MDS capability */
1198 #define OBD_MD_FLOSSCAPA (0x0000040000000000ULL) /* OSS capability */
1199 #define OBD_MD_FLCKSPLIT (0x0000080000000000ULL) /* Check split on server */
1200 #define OBD_MD_FLCROSSREF (0x0000100000000000ULL) /* Cross-ref case */
1201 #define OBD_MD_FLGETATTRLOCK (0x0000200000000000ULL) /* Get IOEpoch attributes
1202 * under lock; for xattr
1203 * requests means the
1204 * client holds the lock */
1205 #define OBD_MD_FLOBJCOUNT (0x0000400000000000ULL) /* for multiple destroy */
1207 #define OBD_MD_FLDATAVERSION (0x0010000000000000ULL) /* iversion sum */
1208 #define OBD_MD_CLOSE_INTENT_EXECED (0x0020000000000000ULL) /* close intent
1211 #define OBD_MD_DEFAULT_MEA (0x0040000000000000ULL) /* default MEA */
1213 #define OBD_MD_FLGETATTR (OBD_MD_FLID | OBD_MD_FLATIME | OBD_MD_FLMTIME | \
1214 OBD_MD_FLCTIME | OBD_MD_FLSIZE | OBD_MD_FLBLKSZ | \
1215 OBD_MD_FLMODE | OBD_MD_FLTYPE | OBD_MD_FLUID | \
1216 OBD_MD_FLGID | OBD_MD_FLFLAGS | OBD_MD_FLNLINK | \
1217 OBD_MD_FLGENER | OBD_MD_FLRDEV | OBD_MD_FLGROUP)
1219 #define OBD_MD_FLXATTRALL (OBD_MD_FLXATTR | OBD_MD_FLXATTRLS)
1221 /* don't forget obdo_fid which is way down at the bottom so it can
1222 * come after the definition of llog_cookie */
1226 HSS_CLEARMASK = 0x02,
1227 HSS_ARCHIVE_ID = 0x04,
1230 struct hsm_state_set {
1232 __u32 hss_archive_id;
1234 __u64 hss_clearmask;
1237 /* ost_body.data values for OST_BRW */
1239 #define OBD_BRW_READ 0x01
1240 #define OBD_BRW_WRITE 0x02
1241 #define OBD_BRW_RWMASK (OBD_BRW_READ | OBD_BRW_WRITE)
1242 #define OBD_BRW_SYNC 0x08 /* this page is a part of synchronous
1243 * transfer and is not accounted in
1245 #define OBD_BRW_CHECK 0x10
1246 #define OBD_BRW_FROM_GRANT 0x20 /* the osc manages this under llite */
1247 #define OBD_BRW_GRANTED 0x40 /* the ost manages this */
1248 #define OBD_BRW_NOCACHE 0x80 /* this page is a part of non-cached IO */
1249 #define OBD_BRW_NOQUOTA 0x100
1250 #define OBD_BRW_SRVLOCK 0x200 /* Client holds no lock over this page */
1251 #define OBD_BRW_ASYNC 0x400 /* Server may delay commit to disk */
1252 #define OBD_BRW_MEMALLOC 0x800 /* Client runs in the "kswapd" context */
1253 #define OBD_BRW_OVER_USRQUOTA 0x1000 /* Running out of user quota */
1254 #define OBD_BRW_OVER_GRPQUOTA 0x2000 /* Running out of group quota */
1255 #define OBD_BRW_SOFT_SYNC 0x4000 /* This flag notifies the server
1256 * that the client is running low on
1257 * space for unstable pages; asking
1258 * it to sync quickly */
1260 #define OBD_OBJECT_EOF LUSTRE_EOF
1262 #define OST_MIN_PRECREATE 32
1263 #define OST_MAX_PRECREATE 20000
1266 struct ost_id ioo_oid; /* object ID, if multi-obj BRW */
1267 __u32 ioo_max_brw; /* low 16 bits were o_mode before 2.4,
1268 * now (PTLRPC_BULK_OPS_COUNT - 1) in
1269 * high 16 bits in 2.4 and later */
1270 __u32 ioo_bufcnt; /* number of niobufs for this object */
1273 /* NOTE: IOOBJ_MAX_BRW_BITS defines the _offset_ of the max_brw field in
1274 * ioo_max_brw, NOT the maximum number of bits in PTLRPC_BULK_OPS_BITS.
1275 * That said, ioo_max_brw is a 32-bit field so the limit is also 16 bits. */
1276 #define IOOBJ_MAX_BRW_BITS 16
1277 #define ioobj_max_brw_get(ioo) (((ioo)->ioo_max_brw >> IOOBJ_MAX_BRW_BITS) + 1)
1278 #define ioobj_max_brw_set(ioo, num) \
1279 do { (ioo)->ioo_max_brw = ((num) - 1) << IOOBJ_MAX_BRW_BITS; } while (0)
1281 /* multiple of 8 bytes => can array */
1282 struct niobuf_remote {
1288 /* lock value block communicated between the filter and llite */
1290 /* OST_LVB_ERR_INIT is needed because the return code in rc is
1291 * negative, i.e. because ((MASK + rc) & MASK) != MASK. */
1292 #define OST_LVB_ERR_INIT 0xffbadbad80000000ULL
1293 #define OST_LVB_ERR_MASK 0xffbadbad00000000ULL
1294 #define OST_LVB_IS_ERR(blocks) \
1295 ((blocks & OST_LVB_ERR_MASK) == OST_LVB_ERR_MASK)
1296 #define OST_LVB_SET_ERR(blocks, rc) \
1297 do { blocks = OST_LVB_ERR_INIT + rc; } while (0)
1298 #define OST_LVB_GET_ERR(blocks) (int)(blocks - OST_LVB_ERR_INIT)
1321 * lquota data structures
1324 #ifndef QUOTABLOCK_BITS
1325 # define QUOTABLOCK_BITS LUSTRE_QUOTABLOCK_BITS
1328 #ifndef QUOTABLOCK_SIZE
1329 # define QUOTABLOCK_SIZE LUSTRE_QUOTABLOCK_SIZE
1333 # define toqb lustre_stoqb
1336 /* The lquota_id structure is an union of all the possible identifier types that
1337 * can be used with quota, this includes:
1340 * - a FID which can be used for per-directory quota in the future */
1342 struct lu_fid qid_fid; /* FID for per-directory quota */
1343 __u64 qid_uid; /* user identifier */
1344 __u64 qid_gid; /* group identifier */
1347 /* quotactl management */
1348 struct obd_quotactl {
1350 __u32 qc_type; /* see Q_* flag below */
1353 struct obd_dqinfo qc_dqinfo;
1354 struct obd_dqblk qc_dqblk;
1357 #define Q_COPY(out, in, member) (out)->member = (in)->member
1359 #define QCTL_COPY(out, in) \
1361 Q_COPY(out, in, qc_cmd); \
1362 Q_COPY(out, in, qc_type); \
1363 Q_COPY(out, in, qc_id); \
1364 Q_COPY(out, in, qc_stat); \
1365 Q_COPY(out, in, qc_dqinfo); \
1366 Q_COPY(out, in, qc_dqblk); \
1369 /* Body of quota request used for quota acquire/release RPCs between quota
1370 * master (aka QMT) and slaves (ak QSD). */
1372 struct lu_fid qb_fid; /* FID of global index packing the pool ID
1373 * and type (data or metadata) as well as
1374 * the quota type (user or group). */
1375 union lquota_id qb_id; /* uid or gid or directory FID */
1376 __u32 qb_flags; /* see below */
1378 __u64 qb_count; /* acquire/release count (kbytes/inodes) */
1379 __u64 qb_usage; /* current slave usage (kbytes/inodes) */
1380 __u64 qb_slv_ver; /* slave index file version */
1381 struct lustre_handle qb_lockh; /* per-ID lock handle */
1382 struct lustre_handle qb_glb_lockh; /* global lock handle */
1383 __u64 qb_padding1[4];
1386 /* When the quota_body is used in the reply of quota global intent
1387 * lock (IT_QUOTA_CONN) reply, qb_fid contains slave index file FID. */
1388 #define qb_slv_fid qb_fid
1389 /* qb_usage is the current qunit (in kbytes/inodes) when quota_body is used in
1391 #define qb_qunit qb_usage
1393 #define QUOTA_DQACQ_FL_ACQ 0x1 /* acquire quota */
1394 #define QUOTA_DQACQ_FL_PREACQ 0x2 /* pre-acquire */
1395 #define QUOTA_DQACQ_FL_REL 0x4 /* release quota */
1396 #define QUOTA_DQACQ_FL_REPORT 0x8 /* report usage */
1398 /* Quota types currently supported */
1400 LQUOTA_TYPE_USR = 0x00, /* maps to USRQUOTA */
1401 LQUOTA_TYPE_GRP = 0x01, /* maps to GRPQUOTA */
1405 /* There are 2 different resource types on which a quota limit can be enforced:
1406 * - inodes on the MDTs
1407 * - blocks on the OSTs */
1409 LQUOTA_RES_MD = 0x01, /* skip 0 to avoid null oid in FID */
1410 LQUOTA_RES_DT = 0x02,
1412 LQUOTA_FIRST_RES = LQUOTA_RES_MD
1414 #define LQUOTA_NR_RES (LQUOTA_LAST_RES - LQUOTA_FIRST_RES + 1)
1417 * Space accounting support
1418 * Format of an accounting record, providing disk usage information for a given
1421 struct lquota_acct_rec { /* 16 bytes */
1422 __u64 bspace; /* current space in use */
1423 __u64 ispace; /* current # inodes in use */
1427 * Global quota index support
1428 * Format of a global record, providing global quota settings for a given quota
1431 struct lquota_glb_rec { /* 32 bytes */
1432 __u64 qbr_hardlimit; /* quota hard limit, in #inodes or kbytes */
1433 __u64 qbr_softlimit; /* quota soft limit, in #inodes or kbytes */
1434 __u64 qbr_time; /* grace time, in seconds */
1435 __u64 qbr_granted; /* how much is granted to slaves, in #inodes or
1440 * Slave index support
1441 * Format of a slave record, recording how much space is granted to a given
1444 struct lquota_slv_rec { /* 8 bytes */
1445 __u64 qsr_granted; /* space granted to the slave for the key=ID,
1446 * in #inodes or kbytes */
1449 /* Data structures associated with the quota locks */
1451 /* Glimpse descriptor used for the index & per-ID quota locks */
1452 struct ldlm_gl_lquota_desc {
1453 union lquota_id gl_id; /* quota ID subject to the glimpse */
1454 __u64 gl_flags; /* see LQUOTA_FL* below */
1455 __u64 gl_ver; /* new index version */
1456 __u64 gl_hardlimit; /* new hardlimit or qunit value */
1457 __u64 gl_softlimit; /* new softlimit */
1461 #define gl_qunit gl_hardlimit /* current qunit value used when
1462 * glimpsing per-ID quota locks */
1464 /* quota glimpse flags */
1465 #define LQUOTA_FL_EDQUOT 0x1 /* user/group out of quota space on QMT */
1467 /* LVB used with quota (global and per-ID) locks */
1469 __u64 lvb_flags; /* see LQUOTA_FL* above */
1470 __u64 lvb_id_may_rel; /* space that might be released later */
1471 __u64 lvb_id_rel; /* space released by the slave for this ID */
1472 __u64 lvb_id_qunit; /* current qunit value */
1476 /* LVB used with global quota lock */
1477 #define lvb_glb_ver lvb_id_may_rel /* current version of the global index */
1485 #define QUOTA_FIRST_OPC QUOTA_DQACQ
1494 MDS_GETATTR_NAME = 34,
1499 MDS_DISCONNECT = 39,
1502 MDS_PIN = 42, /* obsolete, never used in a release */
1503 MDS_UNPIN = 43, /* obsolete, never used in a release */
1505 MDS_DONE_WRITING = 45, /* obsolete since 2.8.0 */
1507 MDS_QUOTACHECK = 47, /* not used since 2.4 */
1510 MDS_SETXATTR = 50, /* obsolete, now it's MDS_REINT op */
1512 MDS_IS_SUBDIR = 52, /* obsolete, never used in a release */
1514 MDS_HSM_STATE_GET = 54,
1515 MDS_HSM_STATE_SET = 55,
1516 MDS_HSM_ACTION = 56,
1517 MDS_HSM_PROGRESS = 57,
1518 MDS_HSM_REQUEST = 58,
1519 MDS_HSM_CT_REGISTER = 59,
1520 MDS_HSM_CT_UNREGISTER = 60,
1521 MDS_SWAP_LAYOUTS = 61,
1525 #define MDS_FIRST_OPC MDS_GETATTR
1528 /* opcodes for object update */
1534 #define OUT_UPDATE_FIRST_OPC OUT_UPDATE
1551 } mds_reint_t, mdt_reint_t;
1553 /* the disposition of the intent outlines what was executed */
1554 #define DISP_IT_EXECD 0x00000001
1555 #define DISP_LOOKUP_EXECD 0x00000002
1556 #define DISP_LOOKUP_NEG 0x00000004
1557 #define DISP_LOOKUP_POS 0x00000008
1558 #define DISP_OPEN_CREATE 0x00000010
1559 #define DISP_OPEN_OPEN 0x00000020
1560 #define DISP_ENQ_COMPLETE 0x00400000 /* obsolete and unused */
1561 #define DISP_ENQ_OPEN_REF 0x00800000
1562 #define DISP_ENQ_CREATE_REF 0x01000000
1563 #define DISP_OPEN_LOCK 0x02000000
1564 #define DISP_OPEN_LEASE 0x04000000
1565 #define DISP_OPEN_STRIPE 0x08000000
1566 #define DISP_OPEN_DENY 0x10000000
1568 /* INODE LOCK PARTS */
1569 #define MDS_INODELOCK_LOOKUP 0x000001 /* For namespace, dentry etc, and also
1570 * was used to protect permission (mode,
1571 * owner, group etc) before 2.4. */
1572 #define MDS_INODELOCK_UPDATE 0x000002 /* size, links, timestamps */
1573 #define MDS_INODELOCK_OPEN 0x000004 /* For opened files */
1574 #define MDS_INODELOCK_LAYOUT 0x000008 /* for layout */
1576 /* The PERM bit is added int 2.4, and it is used to protect permission(mode,
1577 * owner, group, acl etc), so to separate the permission from LOOKUP lock.
1578 * Because for remote directories(in DNE), these locks will be granted by
1579 * different MDTs(different ldlm namespace).
1581 * For local directory, MDT will always grant UPDATE_LOCK|PERM_LOCK together.
1582 * For Remote directory, the master MDT, where the remote directory is, will
1583 * grant UPDATE_LOCK|PERM_LOCK, and the remote MDT, where the name entry is,
1584 * will grant LOOKUP_LOCK. */
1585 #define MDS_INODELOCK_PERM 0x000010
1586 #define MDS_INODELOCK_XATTR 0x000020 /* extended attributes */
1588 #define MDS_INODELOCK_MAXSHIFT 5
1589 /* This FULL lock is useful to take on unlink sort of operations */
1590 #define MDS_INODELOCK_FULL ((1<<(MDS_INODELOCK_MAXSHIFT+1))-1)
1592 /* NOTE: until Lustre 1.8.7/2.1.1 the fid_ver() was packed into name[2],
1593 * but was moved into name[1] along with the OID to avoid consuming the
1594 * name[2,3] fields that need to be used for the quota id (also a FID). */
1596 LUSTRE_RES_ID_SEQ_OFF = 0,
1597 LUSTRE_RES_ID_VER_OID_OFF = 1,
1598 LUSTRE_RES_ID_WAS_VER_OFF = 2, /* see note above */
1599 LUSTRE_RES_ID_QUOTA_SEQ_OFF = 2,
1600 LUSTRE_RES_ID_QUOTA_VER_OID_OFF = 3,
1601 LUSTRE_RES_ID_HSH_OFF = 3
1604 #define MDS_STATUS_CONN 1
1605 #define MDS_STATUS_LOV 2
1608 /* these should be identical to their EXT4_*_FL counterparts, they are
1609 * redefined here only to avoid dragging in fs/ext4/ext4.h */
1610 LUSTRE_SYNC_FL = 0x00000008, /* Synchronous updates */
1611 LUSTRE_IMMUTABLE_FL = 0x00000010, /* Immutable file */
1612 LUSTRE_APPEND_FL = 0x00000020, /* writes to file may only append */
1613 LUSTRE_NODUMP_FL = 0x00000040, /* do not dump file */
1614 LUSTRE_NOATIME_FL = 0x00000080, /* do not update atime */
1615 LUSTRE_INDEX_FL = 0x00001000, /* hash-indexed directory */
1616 LUSTRE_DIRSYNC_FL = 0x00010000, /* dirsync behaviour (dir only) */
1617 LUSTRE_TOPDIR_FL = 0x00020000, /* Top of directory hierarchies*/
1618 LUSTRE_DIRECTIO_FL = 0x00100000, /* Use direct i/o */
1619 LUSTRE_INLINE_DATA_FL = 0x10000000, /* Inode has inline data. */
1621 /* These flags will not be identical to any EXT4_*_FL counterparts,
1622 * and only reserved for lustre purpose. Note: these flags might
1623 * be conflict with some of EXT4 flags, so
1624 * 1. these conflict flags needs to be removed when the flag is
1625 * wired by la_flags see osd_attr_get().
1626 * 2. If these flags needs to be stored into inode, they will be
1627 * stored in LMA. see LMAI_XXXX */
1628 LUSTRE_ORPHAN_FL = 0x00002000,
1630 LUSTRE_LMA_FL_MASKS = LUSTRE_ORPHAN_FL,
1634 /* Convert wire LUSTRE_*_FL to corresponding client local VFS S_* values
1635 * for the client inode i_flags. The LUSTRE_*_FL are the Lustre wire
1636 * protocol equivalents of LDISKFS_*_FL values stored on disk, while
1637 * the S_* flags are kernel-internal values that change between kernel
1638 * versions. These flags are set/cleared via FSFILT_IOC_{GET,SET}_FLAGS.
1639 * See b=16526 for a full history. */
1640 static inline int ll_ext_to_inode_flags(int flags)
1642 return (((flags & LUSTRE_SYNC_FL) ? S_SYNC : 0) |
1643 ((flags & LUSTRE_NOATIME_FL) ? S_NOATIME : 0) |
1644 ((flags & LUSTRE_APPEND_FL) ? S_APPEND : 0) |
1645 #if defined(S_DIRSYNC)
1646 ((flags & LUSTRE_DIRSYNC_FL) ? S_DIRSYNC : 0) |
1648 ((flags & LUSTRE_IMMUTABLE_FL) ? S_IMMUTABLE : 0));
1651 static inline int ll_inode_to_ext_flags(int iflags)
1653 return (((iflags & S_SYNC) ? LUSTRE_SYNC_FL : 0) |
1654 ((iflags & S_NOATIME) ? LUSTRE_NOATIME_FL : 0) |
1655 ((iflags & S_APPEND) ? LUSTRE_APPEND_FL : 0) |
1656 #if defined(S_DIRSYNC)
1657 ((iflags & S_DIRSYNC) ? LUSTRE_DIRSYNC_FL : 0) |
1659 ((iflags & S_IMMUTABLE) ? LUSTRE_IMMUTABLE_FL : 0));
1663 /* 64 possible states */
1664 enum md_transient_state {
1665 MS_RESTORE = (1 << 0), /* restore is running */
1669 struct lu_fid mbo_fid1;
1670 struct lu_fid mbo_fid2;
1671 struct lustre_handle mbo_handle;
1673 __u64 mbo_size; /* Offset, in the case of MDS_READPAGE */
1677 __u64 mbo_blocks; /* XID, in the case of MDS_READPAGE */
1679 __u64 mbo_t_state; /* transient file state defined in
1680 * enum md_transient_state
1681 * was "ino" until 2.4.0 */
1684 __u32 mbo_capability;
1688 __u32 mbo_flags; /* LUSTRE_*_FL file attributes */
1690 __u32 mbo_nlink; /* #bytes to read in the case of MDS_READPAGE */
1691 __u32 mbo_unused2; /* was "generation" until 2.4.0 */
1693 __u32 mbo_eadatasize;
1695 __u32 mbo_max_mdsize;
1696 __u32 mbo_unused3; /* was max_cookiesize until 2.8 */
1697 __u32 mbo_uid_h; /* high 32-bits of uid, for FUID */
1698 __u32 mbo_gid_h; /* high 32-bits of gid, for FUID */
1699 __u32 mbo_padding_5; /* also fix lustre_swab_mdt_body */
1700 __u64 mbo_padding_6;
1701 __u64 mbo_padding_7;
1702 __u64 mbo_padding_8;
1703 __u64 mbo_padding_9;
1704 __u64 mbo_padding_10;
1707 struct mdt_ioepoch {
1708 struct lustre_handle mio_handle;
1709 __u64 mio_unused1; /* was ioepoch */
1710 __u32 mio_unused2; /* was flags */
1714 /* permissions for md_perm.mp_perm */
1716 CFS_SETUID_PERM = 0x01,
1717 CFS_SETGID_PERM = 0x02,
1718 CFS_SETGRP_PERM = 0x04,
1721 struct mdt_rec_setattr {
1731 __u32 sa_padding_1_h;
1732 struct lu_fid sa_fid;
1741 __u32 sa_attr_flags;
1743 __u32 sa_bias; /* some operation flags */
1750 * Attribute flags used in mdt_rec_setattr::sa_valid.
1751 * The kernel's #defines for ATTR_* should not be used over the network
1752 * since the client and MDS may run different kernels (see bug 13828)
1753 * Therefore, we should only use MDS_ATTR_* attributes for sa_valid.
1755 #define MDS_ATTR_MODE 0x1ULL /* = 1 */
1756 #define MDS_ATTR_UID 0x2ULL /* = 2 */
1757 #define MDS_ATTR_GID 0x4ULL /* = 4 */
1758 #define MDS_ATTR_SIZE 0x8ULL /* = 8 */
1759 #define MDS_ATTR_ATIME 0x10ULL /* = 16 */
1760 #define MDS_ATTR_MTIME 0x20ULL /* = 32 */
1761 #define MDS_ATTR_CTIME 0x40ULL /* = 64 */
1762 #define MDS_ATTR_ATIME_SET 0x80ULL /* = 128 */
1763 #define MDS_ATTR_MTIME_SET 0x100ULL /* = 256 */
1764 #define MDS_ATTR_FORCE 0x200ULL /* = 512, Not a change, but a change it */
1765 #define MDS_ATTR_ATTR_FLAG 0x400ULL /* = 1024 */
1766 #define MDS_ATTR_KILL_SUID 0x800ULL /* = 2048 */
1767 #define MDS_ATTR_KILL_SGID 0x1000ULL /* = 4096 */
1768 #define MDS_ATTR_CTIME_SET 0x2000ULL /* = 8192 */
1769 #define MDS_ATTR_FROM_OPEN 0x4000ULL /* = 16384, called from open path, ie O_TRUNC */
1770 #define MDS_ATTR_BLOCKS 0x8000ULL /* = 32768 */
1773 #define FMODE_READ 00000001
1774 #define FMODE_WRITE 00000002
1777 #define MDS_FMODE_CLOSED 00000000
1778 #define MDS_FMODE_EXEC 00000004
1779 /* MDS_FMODE_EPOCH 01000000 obsolete since 2.8.0 */
1780 /* MDS_FMODE_TRUNC 02000000 obsolete since 2.8.0 */
1781 /* MDS_FMODE_SOM 04000000 obsolete since 2.8.0 */
1783 #define MDS_OPEN_CREATED 00000010
1784 #define MDS_OPEN_CROSS 00000020
1786 #define MDS_OPEN_CREAT 00000100
1787 #define MDS_OPEN_EXCL 00000200
1788 #define MDS_OPEN_TRUNC 00001000
1789 #define MDS_OPEN_APPEND 00002000
1790 #define MDS_OPEN_SYNC 00010000
1791 #define MDS_OPEN_DIRECTORY 00200000
1793 #define MDS_OPEN_BY_FID 040000000 /* open_by_fid for known object */
1794 #define MDS_OPEN_DELAY_CREATE 0100000000 /* delay initial object create */
1795 #define MDS_OPEN_OWNEROVERRIDE 0200000000 /* NFSD rw-reopen ro file for owner */
1796 #define MDS_OPEN_JOIN_FILE 0400000000 /* open for join file.
1797 * We do not support JOIN FILE
1798 * anymore, reserve this flags
1799 * just for preventing such bit
1802 #define MDS_OPEN_LOCK 04000000000 /* This open requires open lock */
1803 #define MDS_OPEN_HAS_EA 010000000000 /* specify object create pattern */
1804 #define MDS_OPEN_HAS_OBJS 020000000000 /* Just set the EA the obj exist */
1805 #define MDS_OPEN_NORESTORE 0100000000000ULL /* Do not restore file at open */
1806 #define MDS_OPEN_NEWSTRIPE 0200000000000ULL /* New stripe needed (restripe or
1808 #define MDS_OPEN_VOLATILE 0400000000000ULL /* File is volatile = created
1810 #define MDS_OPEN_LEASE 01000000000000ULL /* Open the file and grant lease
1811 * delegation, succeed if it's not
1812 * being opened with conflict mode.
1814 #define MDS_OPEN_RELEASE 02000000000000ULL /* Open the file for HSM release */
1816 /* lustre internal open flags, which should not be set from user space */
1817 #define MDS_OPEN_FL_INTERNAL (MDS_OPEN_HAS_EA | MDS_OPEN_HAS_OBJS | \
1818 MDS_OPEN_OWNEROVERRIDE | MDS_OPEN_LOCK | \
1819 MDS_OPEN_BY_FID | MDS_OPEN_LEASE | \
1823 MDS_CHECK_SPLIT = 1 << 0,
1824 MDS_CROSS_REF = 1 << 1,
1825 MDS_VTX_BYPASS = 1 << 2,
1826 MDS_PERM_BYPASS = 1 << 3,
1827 /* MDS_SOM = 1 << 4, obsolete since 2.8.0 */
1828 MDS_QUOTA_IGNORE = 1 << 5,
1829 /* Was MDS_CLOSE_CLEANUP (1 << 6), No more used */
1830 MDS_KEEP_ORPHAN = 1 << 7,
1831 MDS_RECOV_OPEN = 1 << 8,
1832 MDS_DATA_MODIFIED = 1 << 9,
1833 MDS_CREATE_VOLATILE = 1 << 10,
1834 MDS_OWNEROVERRIDE = 1 << 11,
1835 MDS_HSM_RELEASE = 1 << 12,
1836 MDS_RENAME_MIGRATE = 1 << 13,
1837 MDS_CLOSE_LAYOUT_SWAP = 1 << 14,
1840 /* instance of mdt_reint_rec */
1841 struct mdt_rec_create {
1849 __u32 cr_suppgid1_h;
1851 __u32 cr_suppgid2_h;
1852 struct lu_fid cr_fid1;
1853 struct lu_fid cr_fid2;
1854 struct lustre_handle cr_old_handle; /* handle in case of open replay */
1858 __u64 cr_padding_1; /* rr_blocks */
1861 /* use of helpers set/get_mrc_cr_flags() is needed to access
1862 * 64 bits cr_flags [cr_flags_l, cr_flags_h], this is done to
1863 * extend cr_flags size without breaking 1.8 compat */
1864 __u32 cr_flags_l; /* for use with open, low 32 bits */
1865 __u32 cr_flags_h; /* for use with open, high 32 bits */
1866 __u32 cr_umask; /* umask for create */
1867 __u32 cr_padding_4; /* rr_padding_4 */
1870 /* instance of mdt_reint_rec */
1871 struct mdt_rec_link {
1879 __u32 lk_suppgid1_h;
1881 __u32 lk_suppgid2_h;
1882 struct lu_fid lk_fid1;
1883 struct lu_fid lk_fid2;
1885 __u64 lk_padding_1; /* rr_atime */
1886 __u64 lk_padding_2; /* rr_ctime */
1887 __u64 lk_padding_3; /* rr_size */
1888 __u64 lk_padding_4; /* rr_blocks */
1890 __u32 lk_padding_5; /* rr_mode */
1891 __u32 lk_padding_6; /* rr_flags */
1892 __u32 lk_padding_7; /* rr_padding_2 */
1893 __u32 lk_padding_8; /* rr_padding_3 */
1894 __u32 lk_padding_9; /* rr_padding_4 */
1897 /* instance of mdt_reint_rec */
1898 struct mdt_rec_unlink {
1906 __u32 ul_suppgid1_h;
1908 __u32 ul_suppgid2_h;
1909 struct lu_fid ul_fid1;
1910 struct lu_fid ul_fid2;
1912 __u64 ul_padding_2; /* rr_atime */
1913 __u64 ul_padding_3; /* rr_ctime */
1914 __u64 ul_padding_4; /* rr_size */
1915 __u64 ul_padding_5; /* rr_blocks */
1918 __u32 ul_padding_6; /* rr_flags */
1919 __u32 ul_padding_7; /* rr_padding_2 */
1920 __u32 ul_padding_8; /* rr_padding_3 */
1921 __u32 ul_padding_9; /* rr_padding_4 */
1924 /* instance of mdt_reint_rec */
1925 struct mdt_rec_rename {
1933 __u32 rn_suppgid1_h;
1935 __u32 rn_suppgid2_h;
1936 struct lu_fid rn_fid1;
1937 struct lu_fid rn_fid2;
1939 __u64 rn_padding_1; /* rr_atime */
1940 __u64 rn_padding_2; /* rr_ctime */
1941 __u64 rn_padding_3; /* rr_size */
1942 __u64 rn_padding_4; /* rr_blocks */
1943 __u32 rn_bias; /* some operation flags */
1944 __u32 rn_mode; /* cross-ref rename has mode */
1945 __u32 rn_padding_5; /* rr_flags */
1946 __u32 rn_padding_6; /* rr_padding_2 */
1947 __u32 rn_padding_7; /* rr_padding_3 */
1948 __u32 rn_padding_8; /* rr_padding_4 */
1951 /* instance of mdt_reint_rec */
1952 struct mdt_rec_setxattr {
1960 __u32 sx_suppgid1_h;
1962 __u32 sx_suppgid2_h;
1963 struct lu_fid sx_fid;
1964 __u64 sx_padding_1; /* These three are rr_fid2 */
1969 __u64 sx_padding_5; /* rr_ctime */
1970 __u64 sx_padding_6; /* rr_size */
1971 __u64 sx_padding_7; /* rr_blocks */
1974 __u32 sx_padding_8; /* rr_flags */
1975 __u32 sx_padding_9; /* rr_padding_2 */
1976 __u32 sx_padding_10; /* rr_padding_3 */
1977 __u32 sx_padding_11; /* rr_padding_4 */
1981 * mdt_rec_reint is the template for all mdt_reint_xxx structures.
1982 * Do NOT change the size of various members, otherwise the value
1983 * will be broken in lustre_swab_mdt_rec_reint().
1985 * If you add new members in other mdt_reint_xxx structres and need to use the
1986 * rr_padding_x fields, then update lustre_swab_mdt_rec_reint() also.
1988 struct mdt_rec_reint {
1996 __u32 rr_suppgid1_h;
1998 __u32 rr_suppgid2_h;
1999 struct lu_fid rr_fid1;
2000 struct lu_fid rr_fid2;
2011 __u32 rr_padding_4; /* also fix lustre_swab_mdt_rec_reint */
2014 /* lmv structures */
2016 __u32 ld_tgt_count; /* how many MDS's */
2017 __u32 ld_active_tgt_count; /* how many active */
2018 __u32 ld_default_stripe_count; /* how many objects are used */
2019 __u32 ld_pattern; /* default hash pattern */
2020 __u64 ld_default_hash_size;
2021 __u64 ld_padding_1; /* also fix lustre_swab_lmv_desc */
2022 __u32 ld_padding_2; /* also fix lustre_swab_lmv_desc */
2023 __u32 ld_qos_maxage; /* in second */
2024 __u32 ld_padding_3; /* also fix lustre_swab_lmv_desc */
2025 __u32 ld_padding_4; /* also fix lustre_swab_lmv_desc */
2026 struct obd_uuid ld_uuid;
2029 /* LMV layout EA, and it will be stored both in master and slave object */
2030 struct lmv_mds_md_v1 {
2032 __u32 lmv_stripe_count;
2033 __u32 lmv_master_mdt_index; /* On master object, it is master
2034 * MDT index, on slave object, it
2035 * is stripe index of the slave obj */
2036 __u32 lmv_hash_type; /* dir stripe policy, i.e. indicate
2037 * which hash function to be used,
2038 * Note: only lower 16 bits is being
2039 * used for now. Higher 16 bits will
2040 * be used to mark the object status,
2041 * for example migrating or dead. */
2042 __u32 lmv_layout_version; /* Used for directory restriping */
2046 char lmv_pool_name[LOV_MAXPOOLNAME + 1]; /* pool name */
2047 struct lu_fid lmv_stripe_fids[0]; /* FIDs for each stripe */
2050 #define LMV_MAGIC_V1 0x0CD20CD0 /* normal stripe lmv magic */
2051 #define LMV_MAGIC LMV_MAGIC_V1
2053 /* #define LMV_USER_MAGIC 0x0CD30CD0 */
2054 #define LMV_MAGIC_STRIPE 0x0CD40CD0 /* magic for dir sub_stripe */
2056 /* Right now only the lower part(0-16bits) of lmv_hash_type is being used,
2057 * and the higher part will be the flag to indicate the status of object,
2058 * for example the object is being migrated. And the hash function
2059 * might be interpreted differently with different flags. */
2060 #define LMV_HASH_TYPE_MASK 0x0000ffff
2062 #define LMV_HASH_FLAG_MIGRATION 0x80000000
2064 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 10, 53, 0)
2065 /* Since lustre 2.8, this flag will not be needed, instead this DEAD
2066 * and orphan flags will be stored in LMA (see LMAI_ORPHAN)
2067 * Keep this flag just for LFSCK, because it still might meet such
2068 * flag when it checks the old FS */
2069 #define LMV_HASH_FLAG_DEAD 0x40000000
2071 #define LMV_HASH_FLAG_BAD_TYPE 0x20000000
2073 /* The striped directory has ever lost its master LMV EA, then LFSCK
2074 * re-generated it. This flag is used to indicate such case. It is an
2076 #define LMV_HASH_FLAG_LOST_LMV 0x10000000
2079 * The FNV-1a hash algorithm is as follows:
2080 * hash = FNV_offset_basis
2081 * for each octet_of_data to be hashed
2082 * hash = hash XOR octet_of_data
2083 * hash = hash × FNV_prime
2085 * http://en.wikipedia.org/wiki/Fowler–Noll–Vo_hash_function#FNV-1a_hash
2087 * http://www.isthe.com/chongo/tech/comp/fnv/index.html#FNV-reference-source
2088 * FNV_prime is 2^40 + 2^8 + 0xb3 = 0x100000001b3ULL
2090 #define LUSTRE_FNV_1A_64_PRIME 0x100000001b3ULL
2091 #define LUSTRE_FNV_1A_64_OFFSET_BIAS 0xcbf29ce484222325ULL
2092 static inline __u64 lustre_hash_fnv_1a_64(const void *buf, size_t size)
2094 __u64 hash = LUSTRE_FNV_1A_64_OFFSET_BIAS;
2095 const unsigned char *p = buf;
2098 for (i = 0; i < size; i++) {
2100 hash *= LUSTRE_FNV_1A_64_PRIME;
2108 struct lmv_mds_md_v1 lmv_md_v1;
2109 struct lmv_user_md lmv_user_md;
2112 static inline int lmv_mds_md_size(int stripe_count, unsigned int lmm_magic)
2114 switch (lmm_magic) {
2116 struct lmv_mds_md_v1 *lmm1;
2118 return sizeof(*lmm1) + stripe_count *
2119 sizeof(lmm1->lmv_stripe_fids[0]);
2126 static inline int lmv_mds_md_stripe_count_get(const union lmv_mds_md *lmm)
2128 switch (__le32_to_cpu(lmm->lmv_magic)) {
2130 return __le32_to_cpu(lmm->lmv_md_v1.lmv_stripe_count);
2131 case LMV_USER_MAGIC:
2132 return __le32_to_cpu(lmm->lmv_user_md.lum_stripe_count);
2138 static inline int lmv_mds_md_hash_type_get(const union lmv_mds_md *lmm)
2140 switch (__le32_to_cpu(lmm->lmv_magic)) {
2142 return __le32_to_cpu(lmm->lmv_md_v1.lmv_hash_type);
2143 case LMV_USER_MAGIC:
2144 return __le32_to_cpu(lmm->lmv_user_md.lum_hash_type);
2154 FLD_FIRST_OPC = FLD_QUERY
2160 SEQ_FIRST_OPC = SEQ_QUERY
2164 SEQ_ALLOC_SUPER = 0,
2176 LFSCK_NOTIFY = 1101,
2179 LFSCK_FIRST_OPC = LFSCK_NOTIFY
2183 * LOV data structures
2186 #define LOV_MAX_UUID_BUFFER_SIZE 8192
2187 /* The size of the buffer the lov/mdc reserves for the
2188 * array of UUIDs returned by the MDS. With the current
2189 * protocol, this will limit the max number of OSTs per LOV */
2191 #define LOV_DESC_MAGIC 0xB0CCDE5C
2192 #define LOV_DESC_QOS_MAXAGE_DEFAULT 5 /* Seconds */
2193 #define LOV_DESC_STRIPE_SIZE_DEFAULT (1 << LNET_MTU_BITS)
2195 /* LOV settings descriptor (should only contain static info) */
2197 __u32 ld_tgt_count; /* how many OBD's */
2198 __u32 ld_active_tgt_count; /* how many active */
2199 __u32 ld_default_stripe_count; /* how many objects are used */
2200 __u32 ld_pattern; /* default PATTERN_RAID0 */
2201 __u64 ld_default_stripe_size; /* in bytes */
2202 __u64 ld_default_stripe_offset; /* in bytes */
2203 __u32 ld_padding_0; /* unused */
2204 __u32 ld_qos_maxage; /* in second */
2205 __u32 ld_padding_1; /* also fix lustre_swab_lov_desc */
2206 __u32 ld_padding_2; /* also fix lustre_swab_lov_desc */
2207 struct obd_uuid ld_uuid;
2210 #define ld_magic ld_active_tgt_count /* for swabbing from llogs */
2215 /* opcodes -- MUST be distinct from OST/MDS opcodes */
2220 LDLM_BL_CALLBACK = 104,
2221 LDLM_CP_CALLBACK = 105,
2222 LDLM_GL_CALLBACK = 106,
2223 LDLM_SET_INFO = 107,
2226 #define LDLM_FIRST_OPC LDLM_ENQUEUE
2228 #define RES_NAME_SIZE 4
2229 struct ldlm_res_id {
2230 __u64 name[RES_NAME_SIZE];
2233 #define DLDLMRES "[%#llx:%#llx:%#llx].%#llx"
2234 #define PLDLMRES(res) (unsigned long long)(res)->lr_name.name[0], \
2235 (unsigned long long)(res)->lr_name.name[1], \
2236 (unsigned long long)(res)->lr_name.name[2], \
2237 (unsigned long long)(res)->lr_name.name[3]
2240 typedef enum ldlm_mode {
2253 #define LCK_MODE_NUM 8
2255 typedef enum ldlm_type {
2263 #define LDLM_MIN_TYPE LDLM_PLAIN
2265 struct ldlm_extent {
2271 struct ldlm_inodebits {
2275 struct ldlm_flock_wire {
2283 /* it's important that the fields of the ldlm_extent structure match
2284 * the first fields of the ldlm_flock structure because there is only
2285 * one ldlm_swab routine to process the ldlm_policy_data_t union. if
2286 * this ever changes we will need to swab the union differently based
2287 * on the resource type. */
2289 typedef union ldlm_wire_policy_data {
2290 struct ldlm_extent l_extent;
2291 struct ldlm_flock_wire l_flock;
2292 struct ldlm_inodebits l_inodebits;
2293 } ldlm_wire_policy_data_t;
2295 struct barrier_lvb {
2301 struct ldlm_gl_barrier_desc {
2307 union ldlm_gl_desc {
2308 struct ldlm_gl_lquota_desc lquota_desc;
2309 struct ldlm_gl_barrier_desc barrier_desc;
2312 enum ldlm_intent_flags {
2313 IT_OPEN = 0x00000001,
2314 IT_CREAT = 0x00000002,
2315 IT_OPEN_CREAT = 0x00000003,
2316 IT_READDIR = 0x00000004,
2317 IT_GETATTR = 0x00000008,
2318 IT_LOOKUP = 0x00000010,
2319 IT_UNLINK = 0x00000020,
2320 IT_TRUNC = 0x00000040,
2321 IT_GETXATTR = 0x00000080,
2322 IT_EXEC = 0x00000100,
2323 IT_PIN = 0x00000200,
2324 IT_LAYOUT = 0x00000400,
2325 IT_QUOTA_DQACQ = 0x00000800,
2326 IT_QUOTA_CONN = 0x00001000,
2327 IT_SETXATTR = 0x00002000,
2330 struct ldlm_intent {
2334 struct ldlm_resource_desc {
2335 enum ldlm_type lr_type;
2336 __u32 lr_pad; /* also fix lustre_swab_ldlm_resource_desc */
2337 struct ldlm_res_id lr_name;
2340 struct ldlm_lock_desc {
2341 struct ldlm_resource_desc l_resource;
2342 enum ldlm_mode l_req_mode;
2343 enum ldlm_mode l_granted_mode;
2344 union ldlm_wire_policy_data l_policy_data;
2347 #define LDLM_LOCKREQ_HANDLES 2
2348 #define LDLM_ENQUEUE_CANCEL_OFF 1
2350 struct ldlm_request {
2353 struct ldlm_lock_desc lock_desc;
2354 struct lustre_handle lock_handle[LDLM_LOCKREQ_HANDLES];
2359 __u32 lock_padding; /* also fix lustre_swab_ldlm_reply */
2360 struct ldlm_lock_desc lock_desc;
2361 struct lustre_handle lock_handle;
2362 __u64 lock_policy_res1;
2363 __u64 lock_policy_res2;
2366 #define ldlm_flags_to_wire(flags) ((__u32)(flags))
2367 #define ldlm_flags_from_wire(flags) ((__u64)(flags))
2370 * Opcodes for mountconf (mgs and mgc)
2375 MGS_EXCEPTION, /* node died, etc. */
2376 MGS_TARGET_REG, /* whenever target starts up */
2382 #define MGS_FIRST_OPC MGS_CONNECT
2384 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)
2385 #define MGS_PARAM_MAXLEN 1024
2386 #define KEY_SET_INFO "set_info"
2388 struct mgs_send_param {
2389 char mgs_param[MGS_PARAM_MAXLEN];
2393 /* We pass this info to the MGS so it can write config logs */
2394 #define MTI_NAME_MAXLEN 64
2395 #define MTI_PARAM_MAXLEN 4096
2396 #define MTI_NIDS_MAX 32
2397 struct mgs_target_info {
2398 __u32 mti_lustre_ver;
2399 __u32 mti_stripe_index;
2400 __u32 mti_config_ver;
2402 __u32 mti_nid_count;
2403 __u32 mti_instance; /* Running instance of target */
2404 char mti_fsname[MTI_NAME_MAXLEN];
2405 char mti_svname[MTI_NAME_MAXLEN];
2406 char mti_uuid[sizeof(struct obd_uuid)];
2407 __u64 mti_nids[MTI_NIDS_MAX]; /* host nids (lnet_nid_t)*/
2408 char mti_params[MTI_PARAM_MAXLEN];
2411 struct mgs_nidtbl_entry {
2412 __u64 mne_version; /* table version of this entry */
2413 __u32 mne_instance; /* target instance # */
2414 __u32 mne_index; /* target index */
2415 __u32 mne_length; /* length of this entry - by bytes */
2416 __u8 mne_type; /* target type LDD_F_SV_TYPE_OST/MDT */
2417 __u8 mne_nid_type; /* type of nid(mbz). for ipv6. */
2418 __u8 mne_nid_size; /* size of each NID, by bytes */
2419 __u8 mne_nid_count; /* # of NIDs in buffer */
2421 lnet_nid_t nids[0]; /* variable size buffer for NIDs. */
2426 CONFIG_T_CONFIG = 0,
2427 CONFIG_T_SPTLRPC = 1,
2428 CONFIG_T_RECOVER = 2,
2429 CONFIG_T_PARAMS = 3,
2430 CONFIG_T_NODEMAP = 4,
2431 CONFIG_T_BARRIER = 5,
2435 struct mgs_config_body {
2436 char mcb_name[MTI_NAME_MAXLEN]; /* logname */
2437 __u64 mcb_offset; /* next index of config log to request */
2438 __u16 mcb_type; /* type of log: CONFIG_T_[CONFIG|RECOVER] */
2439 __u8 mcb_nm_cur_pass;
2440 __u8 mcb_bits; /* bits unit size of config log */
2441 __u32 mcb_units; /* # of units for bulk transfer */
2444 struct mgs_config_res {
2445 __u64 mcr_offset; /* index of last config log */
2447 __u64 mcr_size; /* size of the log */
2448 __u64 mcr_nm_cur_pass; /* current nodemap config pass */
2452 /* Config marker flags (in config log) */
2453 #define CM_START 0x01
2455 #define CM_SKIP 0x04
2456 #define CM_UPGRADE146 0x08
2457 #define CM_EXCLUDE 0x10
2458 #define CM_START_SKIP (CM_START | CM_SKIP)
2461 __u32 cm_step; /* aka config version */
2463 __u32 cm_vers; /* lustre release version number */
2464 __u32 cm_padding; /* 64 bit align */
2465 __s64 cm_createtime; /*when this record was first created */
2466 __s64 cm_canceltime; /*when this record is no longer valid*/
2467 char cm_tgtname[MTI_NAME_MAXLEN];
2468 char cm_comment[MTI_NAME_MAXLEN];
2472 * Opcodes for multiple servers.
2478 OBD_QC_CALLBACK, /* not used since 2.4 */
2482 #define OBD_FIRST_OPC OBD_PING
2485 * llog contexts indices.
2487 * There is compatibility problem with indexes below, they are not
2488 * continuous and must keep their numbers for compatibility needs.
2489 * See LU-5218 for details.
2492 LLOG_CONFIG_ORIG_CTXT = 0,
2493 LLOG_CONFIG_REPL_CTXT = 1,
2494 LLOG_MDS_OST_ORIG_CTXT = 2,
2495 LLOG_MDS_OST_REPL_CTXT = 3, /* kept just to avoid re-assignment */
2496 LLOG_SIZE_ORIG_CTXT = 4,
2497 LLOG_SIZE_REPL_CTXT = 5,
2498 LLOG_TEST_ORIG_CTXT = 8,
2499 LLOG_TEST_REPL_CTXT = 9, /* kept just to avoid re-assignment */
2500 LLOG_CHANGELOG_ORIG_CTXT = 12, /**< changelog generation on mdd */
2501 LLOG_CHANGELOG_REPL_CTXT = 13, /**< changelog access on clients */
2502 /* for multiple changelog consumers */
2503 LLOG_CHANGELOG_USER_ORIG_CTXT = 14,
2504 LLOG_AGENT_ORIG_CTXT = 15, /**< agent requests generation on cdt */
2505 LLOG_UPDATELOG_ORIG_CTXT = 16, /* update log */
2506 LLOG_UPDATELOG_REPL_CTXT = 17, /* update log */
2510 /** Identifier for a single log object */
2512 struct ost_id lgl_oi;
2514 } __attribute__((packed));
2516 /** Records written to the CATALOGS list */
2517 #define CATLIST "CATALOGS"
2519 struct llog_logid lci_logid;
2523 } __attribute__((packed));
2525 /* Log data record types - there is no specific reason that these need to
2526 * be related to the RPC opcodes, but no reason not to (may be handy later?)
2528 #define LLOG_OP_MAGIC 0x10600000
2529 #define LLOG_OP_MASK 0xfff00000
2532 LLOG_PAD_MAGIC = LLOG_OP_MAGIC | 0x00000,
2533 OST_SZ_REC = LLOG_OP_MAGIC | 0x00f00,
2534 /* OST_RAID1_REC = LLOG_OP_MAGIC | 0x01000, never used */
2535 MDS_UNLINK_REC = LLOG_OP_MAGIC | 0x10000 | (MDS_REINT << 8) |
2536 REINT_UNLINK, /* obsolete after 2.5.0 */
2537 MDS_UNLINK64_REC = LLOG_OP_MAGIC | 0x90000 | (MDS_REINT << 8) |
2539 /* MDS_SETATTR_REC = LLOG_OP_MAGIC | 0x12401, obsolete 1.8.0 */
2540 MDS_SETATTR64_REC = LLOG_OP_MAGIC | 0x90000 | (MDS_REINT << 8) |
2542 OBD_CFG_REC = LLOG_OP_MAGIC | 0x20000,
2543 /* PTL_CFG_REC = LLOG_OP_MAGIC | 0x30000, obsolete 1.4.0 */
2544 LLOG_GEN_REC = LLOG_OP_MAGIC | 0x40000,
2545 /* LLOG_JOIN_REC = LLOG_OP_MAGIC | 0x50000, obsolete 1.8.0 */
2546 CHANGELOG_REC = LLOG_OP_MAGIC | 0x60000,
2547 CHANGELOG_USER_REC = LLOG_OP_MAGIC | 0x70000,
2548 HSM_AGENT_REC = LLOG_OP_MAGIC | 0x80000,
2549 UPDATE_REC = LLOG_OP_MAGIC | 0xa0000,
2550 LLOG_HDR_MAGIC = LLOG_OP_MAGIC | 0x45539,
2551 LLOG_LOGID_MAGIC = LLOG_OP_MAGIC | 0x4553b,
2554 #define LLOG_REC_HDR_NEEDS_SWABBING(r) \
2555 (((r)->lrh_type & __swab32(LLOG_OP_MASK)) == __swab32(LLOG_OP_MAGIC))
2557 /** Log record header - stored in little endian order.
2558 * Each record must start with this struct, end with a llog_rec_tail,
2559 * and be a multiple of 256 bits in size.
2561 struct llog_rec_hdr {
2568 struct llog_rec_tail {
2573 /* Where data follow just after header */
2574 #define REC_DATA(ptr) \
2575 ((void *)((char *)ptr + sizeof(struct llog_rec_hdr)))
2577 #define REC_DATA_LEN(rec) \
2578 (rec->lrh_len - sizeof(struct llog_rec_hdr) - \
2579 sizeof(struct llog_rec_tail))
2581 struct llog_logid_rec {
2582 struct llog_rec_hdr lid_hdr;
2583 struct llog_logid lid_id;
2587 struct llog_rec_tail lid_tail;
2588 } __attribute__((packed));
2590 struct llog_unlink_rec {
2591 struct llog_rec_hdr lur_hdr;
2595 struct llog_rec_tail lur_tail;
2596 } __attribute__((packed));
2598 struct llog_unlink64_rec {
2599 struct llog_rec_hdr lur_hdr;
2600 struct lu_fid lur_fid;
2601 __u32 lur_count; /* to destroy the lost precreated */
2605 struct llog_rec_tail lur_tail;
2606 } __attribute__((packed));
2608 struct llog_setattr64_rec {
2609 struct llog_rec_hdr lsr_hdr;
2610 struct ost_id lsr_oi;
2616 struct llog_rec_tail lsr_tail;
2617 } __attribute__((packed));
2619 struct llog_size_change_rec {
2620 struct llog_rec_hdr lsc_hdr;
2621 struct ll_fid lsc_fid;
2626 struct llog_rec_tail lsc_tail;
2627 } __attribute__((packed));
2629 #define CHANGELOG_MAGIC 0xca103000
2631 /** \a changelog_rec_type's that can't be masked */
2632 #define CHANGELOG_MINMASK (1 << CL_MARK)
2633 /** bits covering all \a changelog_rec_type's */
2634 #define CHANGELOG_ALLMASK 0XFFFFFFFF
2635 /** default \a changelog_rec_type mask. Allow all of them, except
2636 * CL_ATIME since it can really be time consuming, and not necessary
2637 * under normal use. */
2638 #define CHANGELOG_DEFMASK (CHANGELOG_ALLMASK & ~(1 << CL_ATIME))
2640 /* changelog llog name, needed by client replicators */
2641 #define CHANGELOG_CATALOG "changelog_catalog"
2643 struct changelog_setinfo {
2646 } __attribute__((packed));
2648 /** changelog record */
2649 struct llog_changelog_rec {
2650 struct llog_rec_hdr cr_hdr;
2651 struct changelog_rec cr; /**< Variable length field */
2652 struct llog_rec_tail cr_do_not_use; /**< for_sizeof_only */
2653 } __attribute__((packed));
2655 #define CHANGELOG_USER_PREFIX "cl"
2657 struct llog_changelog_user_rec {
2658 struct llog_rec_hdr cur_hdr;
2662 struct llog_rec_tail cur_tail;
2663 } __attribute__((packed));
2665 enum agent_req_status {
2673 static inline const char *agent_req_status2name(enum agent_req_status ars)
2691 struct llog_agent_req_rec {
2692 struct llog_rec_hdr arr_hdr; /**< record header */
2693 __u32 arr_status; /**< status of the request */
2695 * agent_req_status */
2696 __u32 arr_archive_id; /**< backend archive number */
2697 __u64 arr_flags; /**< req flags */
2698 __u64 arr_compound_id; /**< compound cookie */
2699 __u64 arr_req_create; /**< req. creation time */
2700 __u64 arr_req_change; /**< req. status change time */
2701 struct hsm_action_item arr_hai; /**< req. to the agent */
2702 struct llog_rec_tail arr_tail; /**< record tail for_sizezof_only */
2703 } __attribute__((packed));
2705 /* Old llog gen for compatibility */
2709 } __attribute__((packed));
2711 struct llog_gen_rec {
2712 struct llog_rec_hdr lgr_hdr;
2713 struct llog_gen lgr_gen;
2717 struct llog_rec_tail lgr_tail;
2720 /* flags for the logs */
2722 LLOG_F_ZAP_WHEN_EMPTY = 0x1,
2723 LLOG_F_IS_CAT = 0x2,
2724 LLOG_F_IS_PLAIN = 0x4,
2725 LLOG_F_EXT_JOBID = 0x8,
2726 LLOG_F_IS_FIXSIZE = 0x10,
2728 /* Note: Flags covered by LLOG_F_EXT_MASK will be inherited from
2729 * catlog to plain log, so do not add LLOG_F_IS_FIXSIZE here,
2730 * because the catlog record is usually fixed size, but its plain
2731 * log record can be variable */
2732 LLOG_F_EXT_MASK = LLOG_F_EXT_JOBID,
2735 /* On-disk header structure of each log object, stored in little endian order */
2736 #define LLOG_MIN_CHUNK_SIZE 8192
2737 #define LLOG_HEADER_SIZE (96) /* sizeof (llog_log_hdr) + sizeof(llh_tail)
2738 * - sizeof(llh_bitmap) */
2739 #define LLOG_BITMAP_BYTES (LLOG_MIN_CHUNK_SIZE - LLOG_HEADER_SIZE)
2740 #define LLOG_MIN_REC_SIZE (24) /* round(llog_rec_hdr + llog_rec_tail) */
2742 struct llog_log_hdr {
2743 struct llog_rec_hdr llh_hdr;
2744 __s64 llh_timestamp;
2746 __u32 llh_bitmap_offset;
2749 /* for a catalog the first/oldest and still in-use plain slot is just
2750 * next to it. It will serve as the upper limit after Catalog has
2753 struct obd_uuid llh_tgtuuid;
2754 __u32 llh_reserved[LLOG_HEADER_SIZE/sizeof(__u32)-23];
2755 /* These fields must always be at the end of the llog_log_hdr.
2756 * Note: llh_bitmap size is variable because llog chunk size could be
2757 * bigger than LLOG_MIN_CHUNK_SIZE, i.e. sizeof(llog_log_hdr) > 8192
2758 * bytes, and the real size is stored in llh_hdr.lrh_len, which means
2759 * llh_tail should only be refered by LLOG_HDR_TAIL().
2760 * But this structure is also used by client/server llog interface
2761 * (see llog_client.c), it will be kept in its original way to avoid
2762 * compatiblity issue. */
2763 __u32 llh_bitmap[LLOG_BITMAP_BYTES / sizeof(__u32)];
2764 struct llog_rec_tail llh_tail;
2765 } __attribute__((packed));
2766 #undef LLOG_HEADER_SIZE
2767 #undef LLOG_BITMAP_BYTES
2769 #define LLOG_HDR_BITMAP_SIZE(llh) (__u32)((llh->llh_hdr.lrh_len - \
2770 llh->llh_bitmap_offset - \
2771 sizeof(llh->llh_tail)) * 8)
2772 #define LLOG_HDR_BITMAP(llh) (__u32 *)((char *)(llh) + \
2773 (llh)->llh_bitmap_offset)
2774 #define LLOG_HDR_TAIL(llh) ((struct llog_rec_tail *)((char *)llh + \
2775 llh->llh_hdr.lrh_len - \
2776 sizeof(llh->llh_tail)))
2778 /** log cookies are used to reference a specific log file and a record therein */
2779 struct llog_cookie {
2780 struct llog_logid lgc_lgl;
2784 } __attribute__((packed));
2786 /** llog protocol */
2787 enum llogd_rpc_ops {
2788 LLOG_ORIGIN_HANDLE_CREATE = 501,
2789 LLOG_ORIGIN_HANDLE_NEXT_BLOCK = 502,
2790 LLOG_ORIGIN_HANDLE_READ_HEADER = 503,
2791 LLOG_ORIGIN_HANDLE_WRITE_REC = 504,
2792 LLOG_ORIGIN_HANDLE_CLOSE = 505,
2793 LLOG_ORIGIN_CONNECT = 506,
2794 LLOG_CATINFO = 507, /* deprecated */
2795 LLOG_ORIGIN_HANDLE_PREV_BLOCK = 508,
2796 LLOG_ORIGIN_HANDLE_DESTROY = 509, /* for destroy llog object*/
2798 LLOG_FIRST_OPC = LLOG_ORIGIN_HANDLE_CREATE
2802 struct llog_logid lgd_logid;
2804 __u32 lgd_llh_flags;
2806 __u32 lgd_saved_index;
2808 __u64 lgd_cur_offset;
2809 } __attribute__((packed));
2811 struct llogd_conn_body {
2812 struct llog_gen lgdc_gen;
2813 struct llog_logid lgdc_logid;
2814 __u32 lgdc_ctxt_idx;
2815 } __attribute__((packed));
2817 /* Note: 64-bit types are 64-bit aligned in structure */
2819 __u64 o_valid; /* hot fields in this obdo */
2822 __u64 o_size; /* o_size-o_blocks == ost_lvb */
2826 __u64 o_blocks; /* brw: cli sent cached bytes */
2829 /* 32-bit fields start here: keep an even number of them via padding */
2830 __u32 o_blksize; /* optimal IO blocksize */
2831 __u32 o_mode; /* brw: cli sent cache remain */
2835 __u32 o_nlink; /* brw: checksum */
2837 __u32 o_misc; /* brw: o_dropped */
2839 __u64 o_ioepoch; /* epoch in ost writes */
2840 __u32 o_stripe_idx; /* holds stripe idx */
2842 struct lustre_handle o_handle; /* brw: lock handle to prolong
2844 struct llog_cookie o_lcookie; /* destroy: unlink cookie from
2845 * MDS, obsolete in 2.8, reused
2850 __u64 o_data_version; /* getattr: sum of iversion for
2852 * brw: grant space consumed on
2853 * the client for the write */
2859 #define o_dirty o_blocks
2860 #define o_undirty o_mode
2861 #define o_dropped o_misc
2862 #define o_cksum o_nlink
2863 #define o_grant_used o_data_version
2865 struct lfsck_request {
2878 __u16 lr_async_windows;
2880 struct lu_fid lr_fid;
2881 struct lu_fid lr_fid2;
2882 struct lu_fid lr_fid3;
2887 struct lfsck_reply {
2894 LE_LASTID_REBUILDING = 1,
2895 LE_LASTID_REBUILT = 2,
2901 LE_FID_ACCESSED = 8,
2903 LE_CONDITIONAL_DESTROY = 10,
2904 LE_PAIRS_VERIFY = 11,
2905 LE_SET_LMV_MASTER = 15,
2906 LE_SET_LMV_SLAVE = 16,
2909 enum lfsck_event_flags {
2910 LEF_TO_OST = 0x00000001,
2911 LEF_FROM_OST = 0x00000002,
2912 LEF_SET_LMV_HASH = 0x00000004,
2913 LEF_SET_LMV_ALL = 0x00000008,
2914 LEF_RECHECK_NAME_HASH = 0x00000010,
2915 LEF_QUERY_ALL = 0x00000020,
2918 /* request structure for OST's */
2923 /* Key for FIEMAP to be used in get_info calls */
2924 struct ll_fiemap_info_key {
2926 struct obdo lfik_oa;
2927 struct fiemap lfik_fiemap;
2930 #define IDX_INFO_MAGIC 0x3D37CC37
2932 /* Index file transfer through the network. The server serializes the index into
2933 * a byte stream which is sent to the client via a bulk transfer */
2937 /* reply: see idx_info_flags below */
2940 /* request & reply: number of lu_idxpage (to be) transferred */
2944 /* request: requested attributes passed down to the iterator API */
2947 /* request & reply: index file identifier (FID) */
2948 struct lu_fid ii_fid;
2950 /* reply: version of the index file before starting to walk the index.
2951 * Please note that the version can be modified at any time during the
2955 /* request: hash to start with:
2956 * reply: hash of the first entry of the first lu_idxpage and hash
2957 * of the entry to read next if any */
2958 __u64 ii_hash_start;
2961 /* reply: size of keys in lu_idxpages, minimal one if II_FL_VARKEY is
2965 /* reply: size of records in lu_idxpages, minimal one if II_FL_VARREC
2974 #define II_END_OFF MDS_DIR_END_OFF /* all entries have been read */
2976 /* List of flags used in idx_info::ii_flags */
2977 enum idx_info_flags {
2978 II_FL_NOHASH = 1 << 0, /* client doesn't care about hash value */
2979 II_FL_VARKEY = 1 << 1, /* keys can be of variable size */
2980 II_FL_VARREC = 1 << 2, /* records can be of variable size */
2981 II_FL_NONUNQ = 1 << 3, /* index supports non-unique keys */
2982 II_FL_NOKEY = 1 << 4, /* client doesn't care about key */
2985 #define LIP_MAGIC 0x8A6D6B6C
2987 /* 4KB (= LU_PAGE_SIZE) container gathering key/record pairs */
2989 /* 16-byte header */
2992 __u16 lip_nr; /* number of entries in the container */
2993 __u64 lip_pad0; /* additional padding for future use */
2995 /* key/record pairs are stored in the remaining 4080 bytes.
2996 * depending upon the flags in idx_info::ii_flags, each key/record
2997 * pair might be preceded by:
2999 * - the key size (II_FL_VARKEY is set)
3000 * - the record size (II_FL_VARREC is set)
3002 * For the time being, we only support fixed-size key & record. */
3003 char lip_entries[0];
3006 #define LIP_HDR_SIZE (offsetof(struct lu_idxpage, lip_entries))
3008 /* Gather all possible type associated with a 4KB container */
3010 struct lu_dirpage lp_dir; /* for MDS_READPAGE */
3011 struct lu_idxpage lp_idx; /* for OBD_IDX_READ */
3012 char lp_array[LU_PAGE_SIZE];
3015 /* security opcodes */
3018 SEC_CTX_INIT_CONT = 802,
3021 SEC_FIRST_OPC = SEC_CTX_INIT
3025 * capa related definitions
3027 #define CAPA_HMAC_MAX_LEN 64
3028 #define CAPA_HMAC_KEY_MAX_LEN 56
3030 /* NB take care when changing the sequence of elements this struct,
3031 * because the offset info is used in find_capa() */
3032 struct lustre_capa {
3033 struct lu_fid lc_fid; /** fid */
3034 __u64 lc_opc; /** operations allowed */
3035 __u64 lc_uid; /** file owner */
3036 __u64 lc_gid; /** file group */
3037 __u32 lc_flags; /** HMAC algorithm & flags */
3038 __u32 lc_keyid; /** key# used for the capability */
3039 __u32 lc_timeout; /** capa timeout value (sec) */
3040 __u32 lc_expiry; /** expiry time (sec) */
3041 __u8 lc_hmac[CAPA_HMAC_MAX_LEN]; /** HMAC */
3042 } __attribute__((packed));
3044 /** lustre_capa::lc_opc */
3046 CAPA_OPC_BODY_WRITE = 1<<0, /**< write object data */
3047 CAPA_OPC_BODY_READ = 1<<1, /**< read object data */
3048 CAPA_OPC_INDEX_LOOKUP = 1<<2, /**< lookup object fid */
3049 CAPA_OPC_INDEX_INSERT = 1<<3, /**< insert object fid */
3050 CAPA_OPC_INDEX_DELETE = 1<<4, /**< delete object fid */
3051 CAPA_OPC_OSS_WRITE = 1<<5, /**< write oss object data */
3052 CAPA_OPC_OSS_READ = 1<<6, /**< read oss object data */
3053 CAPA_OPC_OSS_TRUNC = 1<<7, /**< truncate oss object */
3054 CAPA_OPC_OSS_DESTROY = 1<<8, /**< destroy oss object */
3055 CAPA_OPC_META_WRITE = 1<<9, /**< write object meta data */
3056 CAPA_OPC_META_READ = 1<<10, /**< read object meta data */
3059 #define CAPA_OPC_OSS_RW (CAPA_OPC_OSS_READ | CAPA_OPC_OSS_WRITE)
3060 #define CAPA_OPC_MDS_ONLY \
3061 (CAPA_OPC_BODY_WRITE | CAPA_OPC_BODY_READ | CAPA_OPC_INDEX_LOOKUP | \
3062 CAPA_OPC_INDEX_INSERT | CAPA_OPC_INDEX_DELETE)
3063 #define CAPA_OPC_OSS_ONLY \
3064 (CAPA_OPC_OSS_WRITE | CAPA_OPC_OSS_READ | CAPA_OPC_OSS_TRUNC | \
3065 CAPA_OPC_OSS_DESTROY)
3066 #define CAPA_OPC_MDS_DEFAULT ~CAPA_OPC_OSS_ONLY
3067 #define CAPA_OPC_OSS_DEFAULT ~(CAPA_OPC_MDS_ONLY | CAPA_OPC_OSS_ONLY)
3069 /* lustre_capa::lc_hmac_alg */
3071 CAPA_HMAC_ALG_SHA1 = 1, /**< sha1 algorithm */
3075 #define CAPA_FL_MASK 0x00ffffff
3076 #define CAPA_HMAC_ALG_MASK 0xff000000
3078 struct lustre_capa_key {
3079 __u64 lk_seq; /**< mds# */
3080 __u32 lk_keyid; /**< key# */
3082 __u8 lk_key[CAPA_HMAC_KEY_MAX_LEN]; /**< key */
3083 } __attribute__((packed));
3085 /** The link ea holds 1 \a link_ea_entry for each hardlink */
3086 #define LINK_EA_MAGIC 0x11EAF1DFUL
3087 struct link_ea_header {
3090 __u64 leh_len; /* total size */
3091 __u32 leh_overflow_time;
3095 /** Hardlink data is name and parent fid.
3096 * Stored in this crazy struct for maximum packing and endian-neutrality
3098 struct link_ea_entry {
3099 /** __u16 stored big-endian, unaligned */
3100 unsigned char lee_reclen[2];
3101 unsigned char lee_parent_fid[sizeof(struct lu_fid)];
3103 }__attribute__((packed));
3105 /** fid2path request/reply structure */
3106 struct getinfo_fid2path {
3107 struct lu_fid gf_fid;
3113 struct lu_fid gf_root_fid[0];
3115 } __attribute__((packed));
3117 /** path2parent request/reply structures */
3119 struct lu_fid gp_fid; /**< parent FID */
3120 __u32 gp_linkno; /**< hardlink number */
3121 __u32 gp_name_size; /**< size of the name field */
3122 char gp_name[0]; /**< zero-terminated link name */
3123 } __attribute__((packed));
3126 LAYOUT_INTENT_ACCESS = 0,
3127 LAYOUT_INTENT_READ = 1,
3128 LAYOUT_INTENT_WRITE = 2,
3129 LAYOUT_INTENT_GLIMPSE = 3,
3130 LAYOUT_INTENT_TRUNC = 4,
3131 LAYOUT_INTENT_RELEASE = 5,
3132 LAYOUT_INTENT_RESTORE = 6
3135 /* enqueue layout lock with intent */
3136 struct layout_intent {
3137 __u32 li_opc; /* intent operation for enqueue, read, write etc */
3144 * On the wire version of hsm_progress structure.
3146 * Contains the userspace hsm_progress and some internal fields.
3148 struct hsm_progress_kernel {
3149 /* Field taken from struct hsm_progress */
3152 struct hsm_extent hpk_extent;
3154 __u16 hpk_errval; /* positive val */
3156 /* Additional fields */
3157 __u64 hpk_data_version;
3159 } __attribute__((packed));
3162 * OUT_UPDATE RPC Format
3164 * During the cross-ref operation, the Master MDT, which the client send the
3165 * request to, will disassembly the operation into object updates, then OSP
3166 * will send these updates to the remote MDT to be executed.
3168 * An UPDATE_OBJ RPC does a list of updates. Each update belongs to an
3169 * operation and does a type of modification to an object.
3177 * update (ub_count-th)
3179 * ub_count must be less than or equal to UPDATE_PER_RPC_MAX.
3184 * rc [+ buffers] (1st)
3185 * rc [+ buffers] (2st)
3187 * rc [+ buffers] (nr_count-th)
3189 * ur_count must be less than or equal to UPDATE_PER_RPC_MAX and should usually
3190 * be equal to ub_count.
3194 * Type of each update, if adding/deleting update, please also update
3195 * update_opcode in lustre/target/out_lib.c.
3207 OUT_INDEX_LOOKUP = 9,
3208 OUT_INDEX_INSERT = 10,
3209 OUT_INDEX_DELETE = 11,
3219 UPDATE_FL_OST = 0x00000001, /* op from OST (not MDT) */
3220 UPDATE_FL_SYNC = 0x00000002, /* commit before replying */
3221 UPDATE_FL_COMMITTED = 0x00000004, /* op committed globally */
3222 UPDATE_FL_NOLOG = 0x00000008 /* for idempotent updates */
3225 struct object_update_param {
3226 __u16 oup_len; /* length of this parameter */
3233 struct object_update {
3234 __u16 ou_type; /* enum update_type */
3235 __u16 ou_params_count; /* update parameters count */
3236 __u32 ou_result_size; /* how many bytes can return */
3237 __u32 ou_flags; /* enum update_flag */
3238 __u32 ou_padding1; /* padding 1 */
3239 __u64 ou_batchid; /* op transno on master */
3240 struct lu_fid ou_fid; /* object to be updated */
3241 struct object_update_param ou_params[0]; /* update params */
3244 #define UPDATE_REQUEST_MAGIC_V1 0xBDDE0001
3245 #define UPDATE_REQUEST_MAGIC_V2 0xBDDE0002
3246 #define UPDATE_REQUEST_MAGIC UPDATE_REQUEST_MAGIC_V2
3247 /* Hold object_updates sending to the remote OUT in single RPC */
3248 struct object_update_request {
3250 __u16 ourq_count; /* number of ourq_updates[] */
3252 struct object_update ourq_updates[0];
3255 #define OUT_UPDATE_HEADER_MAGIC 0xBDDF0001
3256 #define OUT_UPDATE_MAX_INLINE_SIZE 4096
3257 /* Header for updates request between MDTs */
3258 struct out_update_header {
3261 __u32 ouh_inline_length;
3262 __u32 ouh_reply_size;
3263 __u32 ouh_inline_data[0];
3266 struct out_update_buffer {
3271 /* the result of object update */
3272 struct object_update_result {
3279 #define UPDATE_REPLY_MAGIC_V1 0x00BD0001
3280 #define UPDATE_REPLY_MAGIC_V2 0x00BD0002
3281 #define UPDATE_REPLY_MAGIC UPDATE_REPLY_MAGIC_V2
3282 /* Hold object_update_results being replied from the remote OUT. */
3283 struct object_update_reply {
3290 /* read update result */
3291 struct out_read_reply {
3298 /** layout swap request structure
3299 * fid1 and fid2 are in mdt_body
3301 struct mdc_swap_layouts {
3303 } __attribute__((packed));
3306 struct lustre_handle cd_handle;
3307 struct lu_fid cd_fid;
3308 __u64 cd_data_version;
3309 __u64 cd_reserved[8];
3312 /* Update llog format */
3314 struct lu_fid uop_fid;
3316 __u16 uop_param_count;
3317 __u16 uop_params_off[0];
3321 struct update_op uops_op[0];
3324 struct update_params {
3325 struct object_update_param up_params[0];
3328 enum update_records_flag {
3329 UPDATE_RECORD_CONTINUE = 1 >> 0,
3332 * This is the update record format used to store the updates in
3333 * disk. All updates of the operation will be stored in ur_ops.
3334 * All of parameters for updates of the operation will be stored
3336 * To save the space of the record, parameters in ur_ops will only
3337 * remember their offset in ur_params, so to avoid storing duplicate
3338 * parameters in ur_params, which can help us save a lot space for
3339 * operation like creating striped directory.
3341 struct update_records {
3342 __u64 ur_master_transno;
3345 /* If the operation includes multiple updates, then ur_index
3346 * means the index of the update inside the whole updates. */
3348 __u32 ur_update_count;
3349 __u32 ur_param_count;
3350 struct update_ops ur_ops;
3351 /* Note ur_ops has a variable size, so comment out
3352 * the following ur_params, in case some use it directly
3353 * update_records->ur_params
3355 * struct update_params ur_params;
3359 struct llog_update_record {
3360 struct llog_rec_hdr lur_hdr;
3361 struct update_records lur_update_rec;
3362 /* Note ur_update_rec has a variable size, so comment out
3363 * the following ur_tail, in case someone use it directly
3365 * struct llog_rec_tail lur_tail;
3369 /* nodemap records, uses 32 byte record length */
3370 #define LUSTRE_NODEMAP_NAME_LENGTH 16
3371 struct nodemap_cluster_rec {
3372 char ncr_name[LUSTRE_NODEMAP_NAME_LENGTH + 1];
3376 __u32 ncr_squash_uid;
3377 __u32 ncr_squash_gid;
3380 /* lnet_nid_t is 8 bytes */
3381 struct nodemap_range_rec {
3382 lnet_nid_t nrr_start_nid;
3383 lnet_nid_t nrr_end_nid;
3388 struct nodemap_id_rec {
3396 struct nodemap_global_rec {
3407 struct nodemap_cluster_rec ncr;
3408 struct nodemap_range_rec nrr;
3409 struct nodemap_id_rec nir;
3410 struct nodemap_global_rec ngr;
3413 /* This is the lu_ladvise struct which goes out on the wire.
3414 * Corresponds to the userspace arg llapi_lu_ladvise.
3415 * value[1-4] are unspecified fields, used differently by different advices */
3417 __u16 lla_advice; /* advice type */
3418 __u16 lla_value1; /* values for different advice types */
3420 __u64 lla_start; /* first byte of extent for advice */
3421 __u64 lla_end; /* last byte of extent for advice */
3426 /* This is the ladvise_hdr which goes on the wire, corresponds to the userspace
3427 * arg llapi_ladvise_hdr.
3428 * value[1-3] are unspecified fields, used differently by different advices */
3429 struct ladvise_hdr {
3430 __u32 lah_magic; /* LADVISE_MAGIC */
3431 __u32 lah_count; /* number of advices */
3432 __u64 lah_flags; /* from enum ladvise_flag */
3433 __u32 lah_value1; /* unused */
3434 __u32 lah_value2; /* unused */
3435 __u64 lah_value3; /* unused */
3436 struct lu_ladvise lah_advise[0]; /* advices in this header */